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11#include <linux/if.h>
12#include <linux/module.h>
13#include <linux/err.h>
14#include <linux/slab.h>
15#include <linux/list.h>
16#include <linux/if_ether.h>
17#include <linux/ieee80211.h>
18#include <linux/nl80211.h>
19#include <linux/rtnetlink.h>
20#include <linux/netlink.h>
21#include <linux/nospec.h>
22#include <linux/etherdevice.h>
23#include <linux/if_vlan.h>
24#include <net/net_namespace.h>
25#include <net/genetlink.h>
26#include <net/cfg80211.h>
27#include <net/sock.h>
28#include <net/inet_connection_sock.h>
29#include "core.h"
30#include "nl80211.h"
31#include "reg.h"
32#include "rdev-ops.h"
33
34static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
35 struct genl_info *info,
36 struct cfg80211_crypto_settings *settings,
37 int cipher_limit);
38
39
40static struct genl_family nl80211_fam;
41
42
43enum nl80211_multicast_groups {
44 NL80211_MCGRP_CONFIG,
45 NL80211_MCGRP_SCAN,
46 NL80211_MCGRP_REGULATORY,
47 NL80211_MCGRP_MLME,
48 NL80211_MCGRP_VENDOR,
49 NL80211_MCGRP_NAN,
50 NL80211_MCGRP_TESTMODE
51};
52
53static const struct genl_multicast_group nl80211_mcgrps[] = {
54 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
55 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
56 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
57 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
58 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
59 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
60#ifdef CONFIG_NL80211_TESTMODE
61 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
62#endif
63};
64
65
66static struct wireless_dev *
67__cfg80211_wdev_from_attrs(struct cfg80211_registered_device *rdev,
68 struct net *netns, struct nlattr **attrs)
69{
70 struct wireless_dev *result = NULL;
71 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
72 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
73 u64 wdev_id = 0;
74 int wiphy_idx = -1;
75 int ifidx = -1;
76
77 if (!have_ifidx && !have_wdev_id)
78 return ERR_PTR(-EINVAL);
79
80 if (have_ifidx)
81 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
82 if (have_wdev_id) {
83 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
84 wiphy_idx = wdev_id >> 32;
85 }
86
87 if (rdev) {
88 struct wireless_dev *wdev;
89
90 lockdep_assert_held(&rdev->wiphy.mtx);
91
92 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
93 if (have_ifidx && wdev->netdev &&
94 wdev->netdev->ifindex == ifidx) {
95 result = wdev;
96 break;
97 }
98 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
99 result = wdev;
100 break;
101 }
102 }
103
104 return result ?: ERR_PTR(-ENODEV);
105 }
106
107 ASSERT_RTNL();
108
109 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
110 struct wireless_dev *wdev;
111
112 if (wiphy_net(&rdev->wiphy) != netns)
113 continue;
114
115 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
116 continue;
117
118 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
119 if (have_ifidx && wdev->netdev &&
120 wdev->netdev->ifindex == ifidx) {
121 result = wdev;
122 break;
123 }
124 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
125 result = wdev;
126 break;
127 }
128 }
129
130 if (result)
131 break;
132 }
133
134 if (result)
135 return result;
136 return ERR_PTR(-ENODEV);
137}
138
139static struct cfg80211_registered_device *
140__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
141{
142 struct cfg80211_registered_device *rdev = NULL, *tmp;
143 struct net_device *netdev;
144
145 ASSERT_RTNL();
146
147 if (!attrs[NL80211_ATTR_WIPHY] &&
148 !attrs[NL80211_ATTR_IFINDEX] &&
149 !attrs[NL80211_ATTR_WDEV])
150 return ERR_PTR(-EINVAL);
151
152 if (attrs[NL80211_ATTR_WIPHY])
153 rdev = cfg80211_rdev_by_wiphy_idx(
154 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
155
156 if (attrs[NL80211_ATTR_WDEV]) {
157 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
158 struct wireless_dev *wdev;
159 bool found = false;
160
161 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
162 if (tmp) {
163
164 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
165 if (wdev->identifier != (u32)wdev_id)
166 continue;
167 found = true;
168 break;
169 }
170
171 if (!found)
172 tmp = NULL;
173
174 if (rdev && tmp != rdev)
175 return ERR_PTR(-EINVAL);
176 rdev = tmp;
177 }
178 }
179
180 if (attrs[NL80211_ATTR_IFINDEX]) {
181 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
182
183 netdev = __dev_get_by_index(netns, ifindex);
184 if (netdev) {
185 if (netdev->ieee80211_ptr)
186 tmp = wiphy_to_rdev(
187 netdev->ieee80211_ptr->wiphy);
188 else
189 tmp = NULL;
190
191
192 if (!tmp)
193 return ERR_PTR(-EINVAL);
194
195
196 if (rdev && tmp != rdev)
197 return ERR_PTR(-EINVAL);
198
199 rdev = tmp;
200 }
201 }
202
203 if (!rdev)
204 return ERR_PTR(-ENODEV);
205
206 if (netns != wiphy_net(&rdev->wiphy))
207 return ERR_PTR(-ENODEV);
208
209 return rdev;
210}
211
212
213
214
215
216
217
218
219static struct cfg80211_registered_device *
220cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
221{
222 return __cfg80211_rdev_from_attrs(netns, info->attrs);
223}
224
225static int validate_beacon_head(const struct nlattr *attr,
226 struct netlink_ext_ack *extack)
227{
228 const u8 *data = nla_data(attr);
229 unsigned int len = nla_len(attr);
230 const struct element *elem;
231 const struct ieee80211_mgmt *mgmt = (void *)data;
232 unsigned int fixedlen, hdrlen;
233 bool s1g_bcn;
234
235 if (len < offsetofend(typeof(*mgmt), frame_control))
236 goto err;
237
238 s1g_bcn = ieee80211_is_s1g_beacon(mgmt->frame_control);
239 if (s1g_bcn) {
240 fixedlen = offsetof(struct ieee80211_ext,
241 u.s1g_beacon.variable);
242 hdrlen = offsetof(struct ieee80211_ext, u.s1g_beacon);
243 } else {
244 fixedlen = offsetof(struct ieee80211_mgmt,
245 u.beacon.variable);
246 hdrlen = offsetof(struct ieee80211_mgmt, u.beacon);
247 }
248
249 if (len < fixedlen)
250 goto err;
251
252 if (ieee80211_hdrlen(mgmt->frame_control) != hdrlen)
253 goto err;
254
255 data += fixedlen;
256 len -= fixedlen;
257
258 for_each_element(elem, data, len) {
259
260 }
261
262 if (for_each_element_completed(elem, data, len))
263 return 0;
264
265err:
266 NL_SET_ERR_MSG_ATTR(extack, attr, "malformed beacon head");
267 return -EINVAL;
268}
269
270static int validate_ie_attr(const struct nlattr *attr,
271 struct netlink_ext_ack *extack)
272{
273 const u8 *data = nla_data(attr);
274 unsigned int len = nla_len(attr);
275 const struct element *elem;
276
277 for_each_element(elem, data, len) {
278
279 }
280
281 if (for_each_element_completed(elem, data, len))
282 return 0;
283
284 NL_SET_ERR_MSG_ATTR(extack, attr, "malformed information elements");
285 return -EINVAL;
286}
287
288static int validate_he_capa(const struct nlattr *attr,
289 struct netlink_ext_ack *extack)
290{
291 if (!ieee80211_he_capa_size_ok(nla_data(attr), nla_len(attr)))
292 return -EINVAL;
293
294 return 0;
295}
296
297
298static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR];
299
300static const struct nla_policy
301nl80211_ftm_responder_policy[NL80211_FTM_RESP_ATTR_MAX + 1] = {
302 [NL80211_FTM_RESP_ATTR_ENABLED] = { .type = NLA_FLAG, },
303 [NL80211_FTM_RESP_ATTR_LCI] = { .type = NLA_BINARY,
304 .len = U8_MAX },
305 [NL80211_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_BINARY,
306 .len = U8_MAX },
307};
308
309static const struct nla_policy
310nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
311 [NL80211_PMSR_FTM_REQ_ATTR_ASAP] = { .type = NLA_FLAG },
312 [NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE] = { .type = NLA_U32 },
313 [NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP] =
314 NLA_POLICY_MAX(NLA_U8, 15),
315 [NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD] = { .type = NLA_U16 },
316 [NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION] =
317 NLA_POLICY_MAX(NLA_U8, 15),
318 [NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST] =
319 NLA_POLICY_MAX(NLA_U8, 31),
320 [NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES] = { .type = NLA_U8 },
321 [NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI] = { .type = NLA_FLAG },
322 [NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC] = { .type = NLA_FLAG },
323 [NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG },
324 [NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG },
325 [NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK] = { .type = NLA_FLAG },
326};
327
328static const struct nla_policy
329nl80211_pmsr_req_data_policy[NL80211_PMSR_TYPE_MAX + 1] = {
330 [NL80211_PMSR_TYPE_FTM] =
331 NLA_POLICY_NESTED(nl80211_pmsr_ftm_req_attr_policy),
332};
333
334static const struct nla_policy
335nl80211_pmsr_req_attr_policy[NL80211_PMSR_REQ_ATTR_MAX + 1] = {
336 [NL80211_PMSR_REQ_ATTR_DATA] =
337 NLA_POLICY_NESTED(nl80211_pmsr_req_data_policy),
338 [NL80211_PMSR_REQ_ATTR_GET_AP_TSF] = { .type = NLA_FLAG },
339};
340
341static const struct nla_policy
342nl80211_pmsr_peer_attr_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = {
343 [NL80211_PMSR_PEER_ATTR_ADDR] = NLA_POLICY_ETH_ADDR,
344 [NL80211_PMSR_PEER_ATTR_CHAN] = NLA_POLICY_NESTED(nl80211_policy),
345 [NL80211_PMSR_PEER_ATTR_REQ] =
346 NLA_POLICY_NESTED(nl80211_pmsr_req_attr_policy),
347 [NL80211_PMSR_PEER_ATTR_RESP] = { .type = NLA_REJECT },
348};
349
350static const struct nla_policy
351nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
352 [NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_REJECT },
353 [NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_REJECT },
354 [NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_REJECT },
355 [NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
356 [NL80211_PMSR_ATTR_PEERS] =
357 NLA_POLICY_NESTED_ARRAY(nl80211_pmsr_peer_attr_policy),
358};
359
360static const struct nla_policy
361he_obss_pd_policy[NL80211_HE_OBSS_PD_ATTR_MAX + 1] = {
362 [NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET] =
363 NLA_POLICY_RANGE(NLA_U8, 1, 20),
364 [NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET] =
365 NLA_POLICY_RANGE(NLA_U8, 1, 20),
366 [NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET] =
367 NLA_POLICY_RANGE(NLA_U8, 1, 20),
368 [NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP] =
369 NLA_POLICY_EXACT_LEN(8),
370 [NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP] =
371 NLA_POLICY_EXACT_LEN(8),
372 [NL80211_HE_OBSS_PD_ATTR_SR_CTRL] = { .type = NLA_U8 },
373};
374
375static const struct nla_policy
376he_bss_color_policy[NL80211_HE_BSS_COLOR_ATTR_MAX + 1] = {
377 [NL80211_HE_BSS_COLOR_ATTR_COLOR] = NLA_POLICY_RANGE(NLA_U8, 1, 63),
378 [NL80211_HE_BSS_COLOR_ATTR_DISABLED] = { .type = NLA_FLAG },
379 [NL80211_HE_BSS_COLOR_ATTR_PARTIAL] = { .type = NLA_FLAG },
380};
381
382static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
383 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
384 .len = NL80211_MAX_SUPP_RATES },
385 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
386 .len = NL80211_MAX_SUPP_HT_RATES },
387 [NL80211_TXRATE_VHT] = NLA_POLICY_EXACT_LEN_WARN(sizeof(struct nl80211_txrate_vht)),
388 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
389 [NL80211_TXRATE_HE] = NLA_POLICY_EXACT_LEN(sizeof(struct nl80211_txrate_he)),
390 [NL80211_TXRATE_HE_GI] = NLA_POLICY_RANGE(NLA_U8,
391 NL80211_RATE_INFO_HE_GI_0_8,
392 NL80211_RATE_INFO_HE_GI_3_2),
393 [NL80211_TXRATE_HE_LTF] = NLA_POLICY_RANGE(NLA_U8,
394 NL80211_RATE_INFO_HE_1XLTF,
395 NL80211_RATE_INFO_HE_4XLTF),
396};
397
398static const struct nla_policy
399nl80211_tid_config_attr_policy[NL80211_TID_CONFIG_ATTR_MAX + 1] = {
400 [NL80211_TID_CONFIG_ATTR_VIF_SUPP] = { .type = NLA_U64 },
401 [NL80211_TID_CONFIG_ATTR_PEER_SUPP] = { .type = NLA_U64 },
402 [NL80211_TID_CONFIG_ATTR_OVERRIDE] = { .type = NLA_FLAG },
403 [NL80211_TID_CONFIG_ATTR_TIDS] = NLA_POLICY_RANGE(NLA_U16, 1, 0xff),
404 [NL80211_TID_CONFIG_ATTR_NOACK] =
405 NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
406 [NL80211_TID_CONFIG_ATTR_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 1),
407 [NL80211_TID_CONFIG_ATTR_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 1),
408 [NL80211_TID_CONFIG_ATTR_AMPDU_CTRL] =
409 NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
410 [NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL] =
411 NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
412 [NL80211_TID_CONFIG_ATTR_AMSDU_CTRL] =
413 NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
414 [NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE] =
415 NLA_POLICY_MAX(NLA_U8, NL80211_TX_RATE_FIXED),
416 [NL80211_TID_CONFIG_ATTR_TX_RATE] =
417 NLA_POLICY_NESTED(nl80211_txattr_policy),
418};
419
420static const struct nla_policy
421nl80211_fils_discovery_policy[NL80211_FILS_DISCOVERY_ATTR_MAX + 1] = {
422 [NL80211_FILS_DISCOVERY_ATTR_INT_MIN] = NLA_POLICY_MAX(NLA_U32, 10000),
423 [NL80211_FILS_DISCOVERY_ATTR_INT_MAX] = NLA_POLICY_MAX(NLA_U32, 10000),
424 [NL80211_FILS_DISCOVERY_ATTR_TMPL] =
425 NLA_POLICY_RANGE(NLA_BINARY,
426 NL80211_FILS_DISCOVERY_TMPL_MIN_LEN,
427 IEEE80211_MAX_DATA_LEN),
428};
429
430static const struct nla_policy
431nl80211_unsol_bcast_probe_resp_policy[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX + 1] = {
432 [NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT] = NLA_POLICY_MAX(NLA_U32, 20),
433 [NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL] = { .type = NLA_BINARY,
434 .len = IEEE80211_MAX_DATA_LEN }
435};
436
437static const struct nla_policy
438sar_specs_policy[NL80211_SAR_ATTR_SPECS_MAX + 1] = {
439 [NL80211_SAR_ATTR_SPECS_POWER] = { .type = NLA_S32 },
440 [NL80211_SAR_ATTR_SPECS_RANGE_INDEX] = {.type = NLA_U32 },
441};
442
443static const struct nla_policy
444sar_policy[NL80211_SAR_ATTR_MAX + 1] = {
445 [NL80211_SAR_ATTR_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_SAR_TYPE),
446 [NL80211_SAR_ATTR_SPECS] = NLA_POLICY_NESTED_ARRAY(sar_specs_policy),
447};
448
449static const struct nla_policy
450nl80211_mbssid_config_policy[NL80211_MBSSID_CONFIG_ATTR_MAX + 1] = {
451 [NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES] = NLA_POLICY_MIN(NLA_U8, 2),
452 [NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY] =
453 NLA_POLICY_MIN(NLA_U8, 1),
454 [NL80211_MBSSID_CONFIG_ATTR_INDEX] = { .type = NLA_U8 },
455 [NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX] = { .type = NLA_U32 },
456 [NL80211_MBSSID_CONFIG_ATTR_EMA] = { .type = NLA_FLAG },
457};
458
459static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
460 [0] = { .strict_start_type = NL80211_ATTR_HE_OBSS_PD },
461 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
462 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
463 .len = 20-1 },
464 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
465
466 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
467 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
468 [NL80211_ATTR_WIPHY_EDMG_CHANNELS] = NLA_POLICY_RANGE(NLA_U8,
469 NL80211_EDMG_CHANNELS_MIN,
470 NL80211_EDMG_CHANNELS_MAX),
471 [NL80211_ATTR_WIPHY_EDMG_BW_CONFIG] = NLA_POLICY_RANGE(NLA_U8,
472 NL80211_EDMG_BW_CONFIG_MIN,
473 NL80211_EDMG_BW_CONFIG_MAX),
474
475 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
476 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
477 [NL80211_ATTR_CENTER_FREQ1_OFFSET] = NLA_POLICY_RANGE(NLA_U32, 0, 999),
478 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
479
480 [NL80211_ATTR_WIPHY_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 1),
481 [NL80211_ATTR_WIPHY_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 1),
482 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
483 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
484 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
485 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
486
487 [NL80211_ATTR_IFTYPE] = NLA_POLICY_MAX(NLA_U32, NL80211_IFTYPE_MAX),
488 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
489 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
490
491 [NL80211_ATTR_MAC] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
492 [NL80211_ATTR_PREV_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
493
494 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
495 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
496 .len = WLAN_MAX_KEY_LEN },
497 [NL80211_ATTR_KEY_IDX] = NLA_POLICY_MAX(NLA_U8, 7),
498 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
499 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
500 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
501 [NL80211_ATTR_KEY_TYPE] =
502 NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES),
503
504 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
505 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
506 [NL80211_ATTR_BEACON_HEAD] =
507 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_beacon_head,
508 IEEE80211_MAX_DATA_LEN),
509 [NL80211_ATTR_BEACON_TAIL] =
510 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
511 IEEE80211_MAX_DATA_LEN),
512 [NL80211_ATTR_STA_AID] =
513 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
514 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
515 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
516 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
517 .len = NL80211_MAX_SUPP_RATES },
518 [NL80211_ATTR_STA_PLINK_ACTION] =
519 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_ACTIONS - 1),
520 [NL80211_ATTR_STA_TX_POWER_SETTING] =
521 NLA_POLICY_RANGE(NLA_U8,
522 NL80211_TX_POWER_AUTOMATIC,
523 NL80211_TX_POWER_FIXED),
524 [NL80211_ATTR_STA_TX_POWER] = { .type = NLA_S16 },
525 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
526 [NL80211_ATTR_MNTR_FLAGS] = { },
527 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
528 .len = IEEE80211_MAX_MESH_ID_LEN },
529 [NL80211_ATTR_MPATH_NEXT_HOP] = NLA_POLICY_ETH_ADDR_COMPAT,
530
531
532 [NL80211_ATTR_REG_ALPHA2] = NLA_POLICY_RANGE(NLA_BINARY, 2, 3),
533 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
534
535 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
536 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
537 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
538 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
539 .len = NL80211_MAX_SUPP_RATES },
540 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
541
542 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
543 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
544
545 [NL80211_ATTR_HT_CAPABILITY] = NLA_POLICY_EXACT_LEN_WARN(NL80211_HT_CAPABILITY_LEN),
546
547 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
548 [NL80211_ATTR_IE] = NLA_POLICY_VALIDATE_FN(NLA_BINARY,
549 validate_ie_attr,
550 IEEE80211_MAX_DATA_LEN),
551 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
552 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
553
554 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
555 .len = IEEE80211_MAX_SSID_LEN },
556 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
557 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
558 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
559 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
560 [NL80211_ATTR_USE_MFP] = NLA_POLICY_RANGE(NLA_U32,
561 NL80211_MFP_NO,
562 NL80211_MFP_OPTIONAL),
563 [NL80211_ATTR_STA_FLAGS2] = {
564 .len = sizeof(struct nl80211_sta_flag_update),
565 },
566 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
567 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
568 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
569 [NL80211_ATTR_CONTROL_PORT_OVER_NL80211] = { .type = NLA_FLAG },
570 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
571 [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 },
572 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
573 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
574 [NL80211_ATTR_PID] = { .type = NLA_U32 },
575 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
576 [NL80211_ATTR_PMKID] = NLA_POLICY_EXACT_LEN_WARN(WLAN_PMKID_LEN),
577 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
578 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
579 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
580 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
581 .len = IEEE80211_MAX_DATA_LEN },
582 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
583 [NL80211_ATTR_PS_STATE] = NLA_POLICY_RANGE(NLA_U32,
584 NL80211_PS_DISABLED,
585 NL80211_PS_ENABLED),
586 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
587 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
588 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
589 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
590 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
591 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
592 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
593 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
594 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
595 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
596 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
597 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
598 [NL80211_ATTR_STA_PLINK_STATE] =
599 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_STATES - 1),
600 [NL80211_ATTR_MEASUREMENT_DURATION] = { .type = NLA_U16 },
601 [NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY] = { .type = NLA_FLAG },
602 [NL80211_ATTR_MESH_PEER_AID] =
603 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
604 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
605 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
606 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
607 [NL80211_ATTR_HIDDEN_SSID] =
608 NLA_POLICY_RANGE(NLA_U32,
609 NL80211_HIDDEN_SSID_NOT_IN_USE,
610 NL80211_HIDDEN_SSID_ZERO_CONTENTS),
611 [NL80211_ATTR_IE_PROBE_RESP] =
612 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
613 IEEE80211_MAX_DATA_LEN),
614 [NL80211_ATTR_IE_ASSOC_RESP] =
615 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
616 IEEE80211_MAX_DATA_LEN),
617 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
618 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
619 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
620 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
621 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
622 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
623 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
624 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
625 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
626 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
627 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
628 .len = IEEE80211_MAX_DATA_LEN },
629 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
630 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
631 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
632 .len = NL80211_HT_CAPABILITY_LEN
633 },
634 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
635 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
636 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
637 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
638 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
639
640
641 [NL80211_ATTR_AUTH_DATA] = NLA_POLICY_MIN_LEN(4),
642
643 [NL80211_ATTR_VHT_CAPABILITY] = NLA_POLICY_EXACT_LEN_WARN(NL80211_VHT_CAPABILITY_LEN),
644 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
645 [NL80211_ATTR_P2P_CTWINDOW] = NLA_POLICY_MAX(NLA_U8, 127),
646 [NL80211_ATTR_P2P_OPPPS] = NLA_POLICY_MAX(NLA_U8, 1),
647 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] =
648 NLA_POLICY_RANGE(NLA_U32,
649 NL80211_MESH_POWER_UNKNOWN + 1,
650 NL80211_MESH_POWER_MAX),
651 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
652 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
653 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
654 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
655 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
656 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
657 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
658 .len = NL80211_VHT_CAPABILITY_LEN,
659 },
660 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
661 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
662 .len = IEEE80211_MAX_DATA_LEN },
663 [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 },
664 [NL80211_ATTR_MAX_CRIT_PROT_DURATION] =
665 NLA_POLICY_MAX(NLA_U16, NL80211_CRIT_PROTO_MAX_DURATION),
666 [NL80211_ATTR_PEER_AID] =
667 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
668 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
669 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
670 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
671 [NL80211_ATTR_CNTDWN_OFFS_BEACON] = { .type = NLA_BINARY },
672 [NL80211_ATTR_CNTDWN_OFFS_PRESP] = { .type = NLA_BINARY },
673 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = NLA_POLICY_MIN_LEN(2),
674
675
676
677
678 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] =
679 NLA_POLICY_RANGE(NLA_BINARY, 2, 253),
680 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
681 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
682 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
683 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
684 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
685 [NL80211_ATTR_QOS_MAP] = NLA_POLICY_RANGE(NLA_BINARY,
686 IEEE80211_QOS_MAP_LEN_MIN,
687 IEEE80211_QOS_MAP_LEN_MAX),
688 [NL80211_ATTR_MAC_HINT] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
689 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
690 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
691 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
692 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
693 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
694 [NL80211_ATTR_TSID] = NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_TIDS - 1),
695 [NL80211_ATTR_USER_PRIO] =
696 NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_UPS - 1),
697 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
698 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
699 [NL80211_ATTR_OPER_CLASS] = { .type = NLA_U8 },
700 [NL80211_ATTR_MAC_MASK] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
701 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
702 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
703 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
704 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
705 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
706 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
707 [NL80211_ATTR_STA_SUPPORT_P2P_PS] =
708 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_P2P_PS_STATUS - 1),
709 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
710 .len = VHT_MUMIMO_GROUPS_DATA_LEN
711 },
712 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
713 [NL80211_ATTR_NAN_MASTER_PREF] = NLA_POLICY_MIN(NLA_U8, 1),
714 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
715 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
716 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
717 .len = FILS_MAX_KEK_LEN },
718 [NL80211_ATTR_FILS_NONCES] = NLA_POLICY_EXACT_LEN_WARN(2 * FILS_NONCE_LEN),
719 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
720 [NL80211_ATTR_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
721 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
722 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
723 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
724 },
725 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
726 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
727 .len = FILS_ERP_MAX_USERNAME_LEN },
728 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
729 .len = FILS_ERP_MAX_REALM_LEN },
730 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
731 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
732 .len = FILS_ERP_MAX_RRK_LEN },
733 [NL80211_ATTR_FILS_CACHE_ID] = NLA_POLICY_EXACT_LEN_WARN(2),
734 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
735 [NL80211_ATTR_PMKR0_NAME] = NLA_POLICY_EXACT_LEN(WLAN_PMK_NAME_LEN),
736 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
737 [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG },
738
739 [NL80211_ATTR_TXQ_LIMIT] = { .type = NLA_U32 },
740 [NL80211_ATTR_TXQ_MEMORY_LIMIT] = { .type = NLA_U32 },
741 [NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 },
742 [NL80211_ATTR_HE_CAPABILITY] =
743 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_he_capa,
744 NL80211_HE_MAX_CAPABILITY_LEN),
745 [NL80211_ATTR_FTM_RESPONDER] =
746 NLA_POLICY_NESTED(nl80211_ftm_responder_policy),
747 [NL80211_ATTR_TIMEOUT] = NLA_POLICY_MIN(NLA_U32, 1),
748 [NL80211_ATTR_PEER_MEASUREMENTS] =
749 NLA_POLICY_NESTED(nl80211_pmsr_attr_policy),
750 [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1),
751 [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY,
752 .len = SAE_PASSWORD_MAX_LEN },
753 [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG },
754 [NL80211_ATTR_HE_OBSS_PD] = NLA_POLICY_NESTED(he_obss_pd_policy),
755 [NL80211_ATTR_VLAN_ID] = NLA_POLICY_RANGE(NLA_U16, 1, VLAN_N_VID - 2),
756 [NL80211_ATTR_HE_BSS_COLOR] = NLA_POLICY_NESTED(he_bss_color_policy),
757 [NL80211_ATTR_TID_CONFIG] =
758 NLA_POLICY_NESTED_ARRAY(nl80211_tid_config_attr_policy),
759 [NL80211_ATTR_CONTROL_PORT_NO_PREAUTH] = { .type = NLA_FLAG },
760 [NL80211_ATTR_PMK_LIFETIME] = NLA_POLICY_MIN(NLA_U32, 1),
761 [NL80211_ATTR_PMK_REAUTH_THRESHOLD] = NLA_POLICY_RANGE(NLA_U8, 1, 100),
762 [NL80211_ATTR_RECEIVE_MULTICAST] = { .type = NLA_FLAG },
763 [NL80211_ATTR_WIPHY_FREQ_OFFSET] = NLA_POLICY_RANGE(NLA_U32, 0, 999),
764 [NL80211_ATTR_SCAN_FREQ_KHZ] = { .type = NLA_NESTED },
765 [NL80211_ATTR_HE_6GHZ_CAPABILITY] =
766 NLA_POLICY_EXACT_LEN(sizeof(struct ieee80211_he_6ghz_capa)),
767 [NL80211_ATTR_FILS_DISCOVERY] =
768 NLA_POLICY_NESTED(nl80211_fils_discovery_policy),
769 [NL80211_ATTR_UNSOL_BCAST_PROBE_RESP] =
770 NLA_POLICY_NESTED(nl80211_unsol_bcast_probe_resp_policy),
771 [NL80211_ATTR_S1G_CAPABILITY] =
772 NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN),
773 [NL80211_ATTR_S1G_CAPABILITY_MASK] =
774 NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN),
775 [NL80211_ATTR_SAE_PWE] =
776 NLA_POLICY_RANGE(NLA_U8, NL80211_SAE_PWE_HUNT_AND_PECK,
777 NL80211_SAE_PWE_BOTH),
778 [NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT },
779 [NL80211_ATTR_SAR_SPEC] = NLA_POLICY_NESTED(sar_policy),
780 [NL80211_ATTR_DISABLE_HE] = { .type = NLA_FLAG },
781 [NL80211_ATTR_OBSS_COLOR_BITMAP] = { .type = NLA_U64 },
782 [NL80211_ATTR_COLOR_CHANGE_COUNT] = { .type = NLA_U8 },
783 [NL80211_ATTR_COLOR_CHANGE_COLOR] = { .type = NLA_U8 },
784 [NL80211_ATTR_COLOR_CHANGE_ELEMS] = NLA_POLICY_NESTED(nl80211_policy),
785 [NL80211_ATTR_MBSSID_CONFIG] =
786 NLA_POLICY_NESTED(nl80211_mbssid_config_policy),
787 [NL80211_ATTR_MBSSID_ELEMS] = { .type = NLA_NESTED },
788 [NL80211_ATTR_RADAR_BACKGROUND] = { .type = NLA_FLAG },
789 [NL80211_ATTR_AP_SETTINGS_FLAGS] = { .type = NLA_U32 },
790 [NL80211_ATTR_EHT_CAPABILITY] =
791 NLA_POLICY_RANGE(NLA_BINARY,
792 NL80211_EHT_MIN_CAPABILITY_LEN,
793 NL80211_EHT_MAX_CAPABILITY_LEN),
794 [NL80211_ATTR_DISABLE_EHT] = { .type = NLA_FLAG },
795};
796
797
798static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
799 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
800 [NL80211_KEY_IDX] = { .type = NLA_U8 },
801 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
802 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
803 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
804 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
805 [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1),
806 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
807 [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX),
808};
809
810
811static const struct nla_policy
812nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
813 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
814 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
815};
816
817#ifdef CONFIG_PM
818
819static const struct nla_policy
820nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
821 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
822 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
823 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
824 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
825 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
826 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
827 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
828 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
829 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
830 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
831};
832
833static const struct nla_policy
834nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
835 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
836 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
837 [NL80211_WOWLAN_TCP_DST_MAC] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
838 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
839 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
840 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = NLA_POLICY_MIN_LEN(1),
841 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
842 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
843 },
844 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
845 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
846 },
847 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
848 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = NLA_POLICY_MIN_LEN(1),
849 [NL80211_WOWLAN_TCP_WAKE_MASK] = NLA_POLICY_MIN_LEN(1),
850};
851#endif
852
853
854static const struct nla_policy
855nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
856 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
857 [NL80211_ATTR_COALESCE_RULE_CONDITION] =
858 NLA_POLICY_RANGE(NLA_U32,
859 NL80211_COALESCE_CONDITION_MATCH,
860 NL80211_COALESCE_CONDITION_NO_MATCH),
861 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
862};
863
864
865static const struct nla_policy
866nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
867 [NL80211_REKEY_DATA_KEK] = {
868 .type = NLA_BINARY,
869 .len = NL80211_KEK_EXT_LEN
870 },
871 [NL80211_REKEY_DATA_KCK] = {
872 .type = NLA_BINARY,
873 .len = NL80211_KCK_EXT_LEN
874 },
875 [NL80211_REKEY_DATA_REPLAY_CTR] = NLA_POLICY_EXACT_LEN(NL80211_REPLAY_CTR_LEN),
876 [NL80211_REKEY_DATA_AKM] = { .type = NLA_U32 },
877};
878
879static const struct nla_policy
880nl80211_match_band_rssi_policy[NUM_NL80211_BANDS] = {
881 [NL80211_BAND_2GHZ] = { .type = NLA_S32 },
882 [NL80211_BAND_5GHZ] = { .type = NLA_S32 },
883 [NL80211_BAND_6GHZ] = { .type = NLA_S32 },
884 [NL80211_BAND_60GHZ] = { .type = NLA_S32 },
885 [NL80211_BAND_LC] = { .type = NLA_S32 },
886};
887
888static const struct nla_policy
889nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
890 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
891 .len = IEEE80211_MAX_SSID_LEN },
892 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
893 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
894 [NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI] =
895 NLA_POLICY_NESTED(nl80211_match_band_rssi_policy),
896};
897
898static const struct nla_policy
899nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
900 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
901 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
902};
903
904static const struct nla_policy
905nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
906 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
907 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
908 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
909 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
910 },
911};
912
913
914static const struct nla_policy
915nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
916 [NL80211_NAN_FUNC_TYPE] =
917 NLA_POLICY_MAX(NLA_U8, NL80211_NAN_FUNC_MAX_TYPE),
918 [NL80211_NAN_FUNC_SERVICE_ID] = {
919 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
920 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
921 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
922 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
923 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
924 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
925 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = NLA_POLICY_EXACT_LEN_WARN(ETH_ALEN),
926 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
927 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
928 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
929 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
930 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
931 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
932 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
933 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
934 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
935};
936
937
938static const struct nla_policy
939nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
940 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
941 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
942 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
943 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
944 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
945};
946
947
948static const struct nla_policy
949nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
950 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
951 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
952 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
953};
954
955static int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
956 struct cfg80211_registered_device **rdev,
957 struct wireless_dev **wdev,
958 struct nlattr **attrbuf)
959{
960 int err;
961
962 if (!cb->args[0]) {
963 struct nlattr **attrbuf_free = NULL;
964
965 if (!attrbuf) {
966 attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf),
967 GFP_KERNEL);
968 if (!attrbuf)
969 return -ENOMEM;
970 attrbuf_free = attrbuf;
971 }
972
973 err = nlmsg_parse_deprecated(cb->nlh,
974 GENL_HDRLEN + nl80211_fam.hdrsize,
975 attrbuf, nl80211_fam.maxattr,
976 nl80211_policy, NULL);
977 if (err) {
978 kfree(attrbuf_free);
979 return err;
980 }
981
982 rtnl_lock();
983 *wdev = __cfg80211_wdev_from_attrs(NULL, sock_net(cb->skb->sk),
984 attrbuf);
985 kfree(attrbuf_free);
986 if (IS_ERR(*wdev)) {
987 rtnl_unlock();
988 return PTR_ERR(*wdev);
989 }
990 *rdev = wiphy_to_rdev((*wdev)->wiphy);
991 mutex_lock(&(*rdev)->wiphy.mtx);
992 rtnl_unlock();
993
994 cb->args[0] = (*rdev)->wiphy_idx + 1;
995 cb->args[1] = (*wdev)->identifier;
996 } else {
997
998 struct wiphy *wiphy;
999 struct wireless_dev *tmp;
1000
1001 rtnl_lock();
1002 wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
1003 if (!wiphy) {
1004 rtnl_unlock();
1005 return -ENODEV;
1006 }
1007 *rdev = wiphy_to_rdev(wiphy);
1008 *wdev = NULL;
1009
1010 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
1011 if (tmp->identifier == cb->args[1]) {
1012 *wdev = tmp;
1013 break;
1014 }
1015 }
1016
1017 if (!*wdev) {
1018 rtnl_unlock();
1019 return -ENODEV;
1020 }
1021 mutex_lock(&(*rdev)->wiphy.mtx);
1022 rtnl_unlock();
1023 }
1024
1025 return 0;
1026}
1027
1028
1029void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
1030 int flags, u8 cmd)
1031{
1032
1033 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
1034}
1035
1036static int nl80211_msg_put_wmm_rules(struct sk_buff *msg,
1037 const struct ieee80211_reg_rule *rule)
1038{
1039 int j;
1040 struct nlattr *nl_wmm_rules =
1041 nla_nest_start_noflag(msg, NL80211_FREQUENCY_ATTR_WMM);
1042
1043 if (!nl_wmm_rules)
1044 goto nla_put_failure;
1045
1046 for (j = 0; j < IEEE80211_NUM_ACS; j++) {
1047 struct nlattr *nl_wmm_rule = nla_nest_start_noflag(msg, j);
1048
1049 if (!nl_wmm_rule)
1050 goto nla_put_failure;
1051
1052 if (nla_put_u16(msg, NL80211_WMMR_CW_MIN,
1053 rule->wmm_rule.client[j].cw_min) ||
1054 nla_put_u16(msg, NL80211_WMMR_CW_MAX,
1055 rule->wmm_rule.client[j].cw_max) ||
1056 nla_put_u8(msg, NL80211_WMMR_AIFSN,
1057 rule->wmm_rule.client[j].aifsn) ||
1058 nla_put_u16(msg, NL80211_WMMR_TXOP,
1059 rule->wmm_rule.client[j].cot))
1060 goto nla_put_failure;
1061
1062 nla_nest_end(msg, nl_wmm_rule);
1063 }
1064 nla_nest_end(msg, nl_wmm_rules);
1065
1066 return 0;
1067
1068nla_put_failure:
1069 return -ENOBUFS;
1070}
1071
1072static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy,
1073 struct ieee80211_channel *chan,
1074 bool large)
1075{
1076
1077
1078
1079 if (!large && chan->flags &
1080 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
1081 return 0;
1082 if (!large && chan->freq_offset)
1083 return 0;
1084
1085 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
1086 chan->center_freq))
1087 goto nla_put_failure;
1088
1089 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_OFFSET, chan->freq_offset))
1090 goto nla_put_failure;
1091
1092 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
1093 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
1094 goto nla_put_failure;
1095 if (chan->flags & IEEE80211_CHAN_NO_IR) {
1096 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
1097 goto nla_put_failure;
1098 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
1099 goto nla_put_failure;
1100 }
1101 if (chan->flags & IEEE80211_CHAN_RADAR) {
1102 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
1103 goto nla_put_failure;
1104 if (large) {
1105 u32 time;
1106
1107 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
1108
1109 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
1110 chan->dfs_state))
1111 goto nla_put_failure;
1112 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
1113 time))
1114 goto nla_put_failure;
1115 if (nla_put_u32(msg,
1116 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
1117 chan->dfs_cac_ms))
1118 goto nla_put_failure;
1119 }
1120 }
1121
1122 if (large) {
1123 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
1124 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
1125 goto nla_put_failure;
1126 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
1127 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
1128 goto nla_put_failure;
1129 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
1130 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
1131 goto nla_put_failure;
1132 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
1133 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
1134 goto nla_put_failure;
1135 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
1136 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
1137 goto nla_put_failure;
1138 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
1139 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
1140 goto nla_put_failure;
1141 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
1142 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
1143 goto nla_put_failure;
1144 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
1145 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
1146 goto nla_put_failure;
1147 if ((chan->flags & IEEE80211_CHAN_NO_HE) &&
1148 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HE))
1149 goto nla_put_failure;
1150 if ((chan->flags & IEEE80211_CHAN_1MHZ) &&
1151 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_1MHZ))
1152 goto nla_put_failure;
1153 if ((chan->flags & IEEE80211_CHAN_2MHZ) &&
1154 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_2MHZ))
1155 goto nla_put_failure;
1156 if ((chan->flags & IEEE80211_CHAN_4MHZ) &&
1157 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_4MHZ))
1158 goto nla_put_failure;
1159 if ((chan->flags & IEEE80211_CHAN_8MHZ) &&
1160 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_8MHZ))
1161 goto nla_put_failure;
1162 if ((chan->flags & IEEE80211_CHAN_16MHZ) &&
1163 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_16MHZ))
1164 goto nla_put_failure;
1165 if ((chan->flags & IEEE80211_CHAN_NO_320MHZ) &&
1166 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_320MHZ))
1167 goto nla_put_failure;
1168 if ((chan->flags & IEEE80211_CHAN_NO_EHT) &&
1169 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_EHT))
1170 goto nla_put_failure;
1171 }
1172
1173 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
1174 DBM_TO_MBM(chan->max_power)))
1175 goto nla_put_failure;
1176
1177 if (large) {
1178 const struct ieee80211_reg_rule *rule =
1179 freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq));
1180
1181 if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) {
1182 if (nl80211_msg_put_wmm_rules(msg, rule))
1183 goto nla_put_failure;
1184 }
1185 }
1186
1187 return 0;
1188
1189 nla_put_failure:
1190 return -ENOBUFS;
1191}
1192
1193static bool nl80211_put_txq_stats(struct sk_buff *msg,
1194 struct cfg80211_txq_stats *txqstats,
1195 int attrtype)
1196{
1197 struct nlattr *txqattr;
1198
1199#define PUT_TXQVAL_U32(attr, memb) do { \
1200 if (txqstats->filled & BIT(NL80211_TXQ_STATS_ ## attr) && \
1201 nla_put_u32(msg, NL80211_TXQ_STATS_ ## attr, txqstats->memb)) \
1202 return false; \
1203 } while (0)
1204
1205 txqattr = nla_nest_start_noflag(msg, attrtype);
1206 if (!txqattr)
1207 return false;
1208
1209 PUT_TXQVAL_U32(BACKLOG_BYTES, backlog_bytes);
1210 PUT_TXQVAL_U32(BACKLOG_PACKETS, backlog_packets);
1211 PUT_TXQVAL_U32(FLOWS, flows);
1212 PUT_TXQVAL_U32(DROPS, drops);
1213 PUT_TXQVAL_U32(ECN_MARKS, ecn_marks);
1214 PUT_TXQVAL_U32(OVERLIMIT, overlimit);
1215 PUT_TXQVAL_U32(OVERMEMORY, overmemory);
1216 PUT_TXQVAL_U32(COLLISIONS, collisions);
1217 PUT_TXQVAL_U32(TX_BYTES, tx_bytes);
1218 PUT_TXQVAL_U32(TX_PACKETS, tx_packets);
1219 PUT_TXQVAL_U32(MAX_FLOWS, max_flows);
1220 nla_nest_end(msg, txqattr);
1221
1222#undef PUT_TXQVAL_U32
1223 return true;
1224}
1225
1226
1227
1228struct key_parse {
1229 struct key_params p;
1230 int idx;
1231 int type;
1232 bool def, defmgmt, defbeacon;
1233 bool def_uni, def_multi;
1234};
1235
1236static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
1237 struct key_parse *k)
1238{
1239 struct nlattr *tb[NL80211_KEY_MAX + 1];
1240 int err = nla_parse_nested_deprecated(tb, NL80211_KEY_MAX, key,
1241 nl80211_key_policy,
1242 info->extack);
1243 if (err)
1244 return err;
1245
1246 k->def = !!tb[NL80211_KEY_DEFAULT];
1247 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
1248 k->defbeacon = !!tb[NL80211_KEY_DEFAULT_BEACON];
1249
1250 if (k->def) {
1251 k->def_uni = true;
1252 k->def_multi = true;
1253 }
1254 if (k->defmgmt || k->defbeacon)
1255 k->def_multi = true;
1256
1257 if (tb[NL80211_KEY_IDX])
1258 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
1259
1260 if (tb[NL80211_KEY_DATA]) {
1261 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
1262 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
1263 }
1264
1265 if (tb[NL80211_KEY_SEQ]) {
1266 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
1267 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
1268 }
1269
1270 if (tb[NL80211_KEY_CIPHER])
1271 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
1272
1273 if (tb[NL80211_KEY_TYPE])
1274 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
1275
1276 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
1277 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
1278
1279 err = nla_parse_nested_deprecated(kdt,
1280 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
1281 tb[NL80211_KEY_DEFAULT_TYPES],
1282 nl80211_key_default_policy,
1283 info->extack);
1284 if (err)
1285 return err;
1286
1287 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
1288 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
1289 }
1290
1291 if (tb[NL80211_KEY_MODE])
1292 k->p.mode = nla_get_u8(tb[NL80211_KEY_MODE]);
1293
1294 return 0;
1295}
1296
1297static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
1298{
1299 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
1300 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
1301 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
1302 }
1303
1304 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
1305 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
1306 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
1307 }
1308
1309 if (info->attrs[NL80211_ATTR_KEY_IDX])
1310 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1311
1312 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
1313 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
1314
1315 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
1316 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
1317
1318 if (k->def) {
1319 k->def_uni = true;
1320 k->def_multi = true;
1321 }
1322 if (k->defmgmt)
1323 k->def_multi = true;
1324
1325 if (info->attrs[NL80211_ATTR_KEY_TYPE])
1326 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1327
1328 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
1329 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
1330 int err = nla_parse_nested_deprecated(kdt,
1331 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
1332 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
1333 nl80211_key_default_policy,
1334 info->extack);
1335 if (err)
1336 return err;
1337
1338 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
1339 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
1340 }
1341
1342 return 0;
1343}
1344
1345static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
1346{
1347 int err;
1348
1349 memset(k, 0, sizeof(*k));
1350 k->idx = -1;
1351 k->type = -1;
1352
1353 if (info->attrs[NL80211_ATTR_KEY])
1354 err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
1355 else
1356 err = nl80211_parse_key_old(info, k);
1357
1358 if (err)
1359 return err;
1360
1361 if ((k->def ? 1 : 0) + (k->defmgmt ? 1 : 0) +
1362 (k->defbeacon ? 1 : 0) > 1) {
1363 GENL_SET_ERR_MSG(info,
1364 "key with multiple default flags is invalid");
1365 return -EINVAL;
1366 }
1367
1368 if (k->defmgmt || k->defbeacon) {
1369 if (k->def_uni || !k->def_multi) {
1370 GENL_SET_ERR_MSG(info,
1371 "defmgmt/defbeacon key must be mcast");
1372 return -EINVAL;
1373 }
1374 }
1375
1376 if (k->idx != -1) {
1377 if (k->defmgmt) {
1378 if (k->idx < 4 || k->idx > 5) {
1379 GENL_SET_ERR_MSG(info,
1380 "defmgmt key idx not 4 or 5");
1381 return -EINVAL;
1382 }
1383 } else if (k->defbeacon) {
1384 if (k->idx < 6 || k->idx > 7) {
1385 GENL_SET_ERR_MSG(info,
1386 "defbeacon key idx not 6 or 7");
1387 return -EINVAL;
1388 }
1389 } else if (k->def) {
1390 if (k->idx < 0 || k->idx > 3) {
1391 GENL_SET_ERR_MSG(info, "def key idx not 0-3");
1392 return -EINVAL;
1393 }
1394 } else {
1395 if (k->idx < 0 || k->idx > 7) {
1396 GENL_SET_ERR_MSG(info, "key idx not 0-7");
1397 return -EINVAL;
1398 }
1399 }
1400 }
1401
1402 return 0;
1403}
1404
1405static struct cfg80211_cached_keys *
1406nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
1407 struct genl_info *info, bool *no_ht)
1408{
1409 struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
1410 struct key_parse parse;
1411 struct nlattr *key;
1412 struct cfg80211_cached_keys *result;
1413 int rem, err, def = 0;
1414 bool have_key = false;
1415
1416 nla_for_each_nested(key, keys, rem) {
1417 have_key = true;
1418 break;
1419 }
1420
1421 if (!have_key)
1422 return NULL;
1423
1424 result = kzalloc(sizeof(*result), GFP_KERNEL);
1425 if (!result)
1426 return ERR_PTR(-ENOMEM);
1427
1428 result->def = -1;
1429
1430 nla_for_each_nested(key, keys, rem) {
1431 memset(&parse, 0, sizeof(parse));
1432 parse.idx = -1;
1433
1434 err = nl80211_parse_key_new(info, key, &parse);
1435 if (err)
1436 goto error;
1437 err = -EINVAL;
1438 if (!parse.p.key)
1439 goto error;
1440 if (parse.idx < 0 || parse.idx > 3) {
1441 GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
1442 goto error;
1443 }
1444 if (parse.def) {
1445 if (def) {
1446 GENL_SET_ERR_MSG(info,
1447 "only one key can be default");
1448 goto error;
1449 }
1450 def = 1;
1451 result->def = parse.idx;
1452 if (!parse.def_uni || !parse.def_multi)
1453 goto error;
1454 } else if (parse.defmgmt)
1455 goto error;
1456 err = cfg80211_validate_key_settings(rdev, &parse.p,
1457 parse.idx, false, NULL);
1458 if (err)
1459 goto error;
1460 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
1461 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
1462 GENL_SET_ERR_MSG(info, "connect key must be WEP");
1463 err = -EINVAL;
1464 goto error;
1465 }
1466 result->params[parse.idx].cipher = parse.p.cipher;
1467 result->params[parse.idx].key_len = parse.p.key_len;
1468 result->params[parse.idx].key = result->data[parse.idx];
1469 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
1470
1471
1472 if (no_ht)
1473 *no_ht = true;
1474 }
1475
1476 if (result->def < 0) {
1477 err = -EINVAL;
1478 GENL_SET_ERR_MSG(info, "need a default/TX key");
1479 goto error;
1480 }
1481
1482 return result;
1483 error:
1484 kfree(result);
1485 return ERR_PTR(err);
1486}
1487
1488static int nl80211_key_allowed(struct wireless_dev *wdev)
1489{
1490 ASSERT_WDEV_LOCK(wdev);
1491
1492 switch (wdev->iftype) {
1493 case NL80211_IFTYPE_AP:
1494 case NL80211_IFTYPE_AP_VLAN:
1495 case NL80211_IFTYPE_P2P_GO:
1496 case NL80211_IFTYPE_MESH_POINT:
1497 break;
1498 case NL80211_IFTYPE_ADHOC:
1499 case NL80211_IFTYPE_STATION:
1500 case NL80211_IFTYPE_P2P_CLIENT:
1501 if (!wdev->current_bss)
1502 return -ENOLINK;
1503 break;
1504 case NL80211_IFTYPE_UNSPECIFIED:
1505 case NL80211_IFTYPE_OCB:
1506 case NL80211_IFTYPE_MONITOR:
1507 case NL80211_IFTYPE_NAN:
1508 case NL80211_IFTYPE_P2P_DEVICE:
1509 case NL80211_IFTYPE_WDS:
1510 case NUM_NL80211_IFTYPES:
1511 return -EINVAL;
1512 }
1513
1514 return 0;
1515}
1516
1517static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1518 u32 freq)
1519{
1520 struct ieee80211_channel *chan;
1521
1522 chan = ieee80211_get_channel_khz(wiphy, freq);
1523 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1524 return NULL;
1525 return chan;
1526}
1527
1528static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1529{
1530 struct nlattr *nl_modes = nla_nest_start_noflag(msg, attr);
1531 int i;
1532
1533 if (!nl_modes)
1534 goto nla_put_failure;
1535
1536 i = 0;
1537 while (ifmodes) {
1538 if ((ifmodes & 1) && nla_put_flag(msg, i))
1539 goto nla_put_failure;
1540 ifmodes >>= 1;
1541 i++;
1542 }
1543
1544 nla_nest_end(msg, nl_modes);
1545 return 0;
1546
1547nla_put_failure:
1548 return -ENOBUFS;
1549}
1550
1551static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1552 struct sk_buff *msg,
1553 bool large)
1554{
1555 struct nlattr *nl_combis;
1556 int i, j;
1557
1558 nl_combis = nla_nest_start_noflag(msg,
1559 NL80211_ATTR_INTERFACE_COMBINATIONS);
1560 if (!nl_combis)
1561 goto nla_put_failure;
1562
1563 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1564 const struct ieee80211_iface_combination *c;
1565 struct nlattr *nl_combi, *nl_limits;
1566
1567 c = &wiphy->iface_combinations[i];
1568
1569 nl_combi = nla_nest_start_noflag(msg, i + 1);
1570 if (!nl_combi)
1571 goto nla_put_failure;
1572
1573 nl_limits = nla_nest_start_noflag(msg,
1574 NL80211_IFACE_COMB_LIMITS);
1575 if (!nl_limits)
1576 goto nla_put_failure;
1577
1578 for (j = 0; j < c->n_limits; j++) {
1579 struct nlattr *nl_limit;
1580
1581 nl_limit = nla_nest_start_noflag(msg, j + 1);
1582 if (!nl_limit)
1583 goto nla_put_failure;
1584 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1585 c->limits[j].max))
1586 goto nla_put_failure;
1587 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1588 c->limits[j].types))
1589 goto nla_put_failure;
1590 nla_nest_end(msg, nl_limit);
1591 }
1592
1593 nla_nest_end(msg, nl_limits);
1594
1595 if (c->beacon_int_infra_match &&
1596 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1597 goto nla_put_failure;
1598 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1599 c->num_different_channels) ||
1600 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1601 c->max_interfaces))
1602 goto nla_put_failure;
1603 if (large &&
1604 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1605 c->radar_detect_widths) ||
1606 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1607 c->radar_detect_regions)))
1608 goto nla_put_failure;
1609 if (c->beacon_int_min_gcd &&
1610 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1611 c->beacon_int_min_gcd))
1612 goto nla_put_failure;
1613
1614 nla_nest_end(msg, nl_combi);
1615 }
1616
1617 nla_nest_end(msg, nl_combis);
1618
1619 return 0;
1620nla_put_failure:
1621 return -ENOBUFS;
1622}
1623
1624#ifdef CONFIG_PM
1625static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1626 struct sk_buff *msg)
1627{
1628 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1629 struct nlattr *nl_tcp;
1630
1631 if (!tcp)
1632 return 0;
1633
1634 nl_tcp = nla_nest_start_noflag(msg,
1635 NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1636 if (!nl_tcp)
1637 return -ENOBUFS;
1638
1639 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1640 tcp->data_payload_max))
1641 return -ENOBUFS;
1642
1643 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1644 tcp->data_payload_max))
1645 return -ENOBUFS;
1646
1647 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1648 return -ENOBUFS;
1649
1650 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1651 sizeof(*tcp->tok), tcp->tok))
1652 return -ENOBUFS;
1653
1654 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1655 tcp->data_interval_max))
1656 return -ENOBUFS;
1657
1658 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1659 tcp->wake_payload_max))
1660 return -ENOBUFS;
1661
1662 nla_nest_end(msg, nl_tcp);
1663 return 0;
1664}
1665
1666static int nl80211_send_wowlan(struct sk_buff *msg,
1667 struct cfg80211_registered_device *rdev,
1668 bool large)
1669{
1670 struct nlattr *nl_wowlan;
1671
1672 if (!rdev->wiphy.wowlan)
1673 return 0;
1674
1675 nl_wowlan = nla_nest_start_noflag(msg,
1676 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1677 if (!nl_wowlan)
1678 return -ENOBUFS;
1679
1680 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1681 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1682 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1683 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1684 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1685 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1686 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1687 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1688 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1689 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1690 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1691 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1692 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1693 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1694 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1695 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1696 return -ENOBUFS;
1697
1698 if (rdev->wiphy.wowlan->n_patterns) {
1699 struct nl80211_pattern_support pat = {
1700 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1701 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1702 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1703 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1704 };
1705
1706 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1707 sizeof(pat), &pat))
1708 return -ENOBUFS;
1709 }
1710
1711 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1712 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1713 rdev->wiphy.wowlan->max_nd_match_sets))
1714 return -ENOBUFS;
1715
1716 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1717 return -ENOBUFS;
1718
1719 nla_nest_end(msg, nl_wowlan);
1720
1721 return 0;
1722}
1723#endif
1724
1725static int nl80211_send_coalesce(struct sk_buff *msg,
1726 struct cfg80211_registered_device *rdev)
1727{
1728 struct nl80211_coalesce_rule_support rule;
1729
1730 if (!rdev->wiphy.coalesce)
1731 return 0;
1732
1733 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1734 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1735 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1736 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1737 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1738 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1739
1740 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1741 return -ENOBUFS;
1742
1743 return 0;
1744}
1745
1746static int
1747nl80211_send_iftype_data(struct sk_buff *msg,
1748 const struct ieee80211_supported_band *sband,
1749 const struct ieee80211_sband_iftype_data *iftdata)
1750{
1751 const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap;
1752 const struct ieee80211_sta_eht_cap *eht_cap = &iftdata->eht_cap;
1753
1754 if (nl80211_put_iftypes(msg, NL80211_BAND_IFTYPE_ATTR_IFTYPES,
1755 iftdata->types_mask))
1756 return -ENOBUFS;
1757
1758 if (he_cap->has_he) {
1759 if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC,
1760 sizeof(he_cap->he_cap_elem.mac_cap_info),
1761 he_cap->he_cap_elem.mac_cap_info) ||
1762 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY,
1763 sizeof(he_cap->he_cap_elem.phy_cap_info),
1764 he_cap->he_cap_elem.phy_cap_info) ||
1765 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
1766 sizeof(he_cap->he_mcs_nss_supp),
1767 &he_cap->he_mcs_nss_supp) ||
1768 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
1769 sizeof(he_cap->ppe_thres), he_cap->ppe_thres))
1770 return -ENOBUFS;
1771 }
1772
1773 if (eht_cap->has_eht && he_cap->has_he) {
1774 u8 mcs_nss_size, ppe_thresh_size;
1775 u16 ppe_thres_hdr;
1776
1777 mcs_nss_size =
1778 ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
1779 &eht_cap->eht_cap_elem);
1780
1781 ppe_thres_hdr = get_unaligned_le16(&eht_cap->eht_ppe_thres[0]);
1782 ppe_thresh_size =
1783 ieee80211_eht_ppe_size(ppe_thres_hdr,
1784 eht_cap->eht_cap_elem.phy_cap_info);
1785
1786 if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_MAC,
1787 sizeof(eht_cap->eht_cap_elem.mac_cap_info),
1788 eht_cap->eht_cap_elem.mac_cap_info) ||
1789 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_PHY,
1790 sizeof(eht_cap->eht_cap_elem.phy_cap_info),
1791 eht_cap->eht_cap_elem.phy_cap_info) ||
1792 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_MCS_SET,
1793 mcs_nss_size, &eht_cap->eht_mcs_nss_supp) ||
1794 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_EHT_CAP_PPE,
1795 ppe_thresh_size, eht_cap->eht_ppe_thres))
1796 return -ENOBUFS;
1797 }
1798
1799 if (sband->band == NL80211_BAND_6GHZ &&
1800 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_6GHZ_CAPA,
1801 sizeof(iftdata->he_6ghz_capa),
1802 &iftdata->he_6ghz_capa))
1803 return -ENOBUFS;
1804
1805 if (iftdata->vendor_elems.data && iftdata->vendor_elems.len &&
1806 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_VENDOR_ELEMS,
1807 iftdata->vendor_elems.len, iftdata->vendor_elems.data))
1808 return -ENOBUFS;
1809
1810 return 0;
1811}
1812
1813static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1814 struct ieee80211_supported_band *sband,
1815 bool large)
1816{
1817 struct nlattr *nl_rates, *nl_rate;
1818 struct ieee80211_rate *rate;
1819 int i;
1820
1821
1822 if (sband->ht_cap.ht_supported &&
1823 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1824 sizeof(sband->ht_cap.mcs),
1825 &sband->ht_cap.mcs) ||
1826 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1827 sband->ht_cap.cap) ||
1828 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1829 sband->ht_cap.ampdu_factor) ||
1830 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1831 sband->ht_cap.ampdu_density)))
1832 return -ENOBUFS;
1833
1834
1835 if (sband->vht_cap.vht_supported &&
1836 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1837 sizeof(sband->vht_cap.vht_mcs),
1838 &sband->vht_cap.vht_mcs) ||
1839 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1840 sband->vht_cap.cap)))
1841 return -ENOBUFS;
1842
1843 if (large && sband->n_iftype_data) {
1844 struct nlattr *nl_iftype_data =
1845 nla_nest_start_noflag(msg,
1846 NL80211_BAND_ATTR_IFTYPE_DATA);
1847 int err;
1848
1849 if (!nl_iftype_data)
1850 return -ENOBUFS;
1851
1852 for (i = 0; i < sband->n_iftype_data; i++) {
1853 struct nlattr *iftdata;
1854
1855 iftdata = nla_nest_start_noflag(msg, i + 1);
1856 if (!iftdata)
1857 return -ENOBUFS;
1858
1859 err = nl80211_send_iftype_data(msg, sband,
1860 &sband->iftype_data[i]);
1861 if (err)
1862 return err;
1863
1864 nla_nest_end(msg, iftdata);
1865 }
1866
1867 nla_nest_end(msg, nl_iftype_data);
1868 }
1869
1870
1871 if (large && sband->edmg_cap.channels &&
1872 (nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_CHANNELS,
1873 sband->edmg_cap.channels) ||
1874 nla_put_u8(msg, NL80211_BAND_ATTR_EDMG_BW_CONFIG,
1875 sband->edmg_cap.bw_config)))
1876
1877 return -ENOBUFS;
1878
1879
1880 nl_rates = nla_nest_start_noflag(msg, NL80211_BAND_ATTR_RATES);
1881 if (!nl_rates)
1882 return -ENOBUFS;
1883
1884 for (i = 0; i < sband->n_bitrates; i++) {
1885 nl_rate = nla_nest_start_noflag(msg, i);
1886 if (!nl_rate)
1887 return -ENOBUFS;
1888
1889 rate = &sband->bitrates[i];
1890 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1891 rate->bitrate))
1892 return -ENOBUFS;
1893 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1894 nla_put_flag(msg,
1895 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1896 return -ENOBUFS;
1897
1898 nla_nest_end(msg, nl_rate);
1899 }
1900
1901 nla_nest_end(msg, nl_rates);
1902
1903 return 0;
1904}
1905
1906static int
1907nl80211_send_mgmt_stypes(struct sk_buff *msg,
1908 const struct ieee80211_txrx_stypes *mgmt_stypes)
1909{
1910 u16 stypes;
1911 struct nlattr *nl_ftypes, *nl_ifs;
1912 enum nl80211_iftype ift;
1913 int i;
1914
1915 if (!mgmt_stypes)
1916 return 0;
1917
1918 nl_ifs = nla_nest_start_noflag(msg, NL80211_ATTR_TX_FRAME_TYPES);
1919 if (!nl_ifs)
1920 return -ENOBUFS;
1921
1922 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1923 nl_ftypes = nla_nest_start_noflag(msg, ift);
1924 if (!nl_ftypes)
1925 return -ENOBUFS;
1926 i = 0;
1927 stypes = mgmt_stypes[ift].tx;
1928 while (stypes) {
1929 if ((stypes & 1) &&
1930 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1931 (i << 4) | IEEE80211_FTYPE_MGMT))
1932 return -ENOBUFS;
1933 stypes >>= 1;
1934 i++;
1935 }
1936 nla_nest_end(msg, nl_ftypes);
1937 }
1938
1939 nla_nest_end(msg, nl_ifs);
1940
1941 nl_ifs = nla_nest_start_noflag(msg, NL80211_ATTR_RX_FRAME_TYPES);
1942 if (!nl_ifs)
1943 return -ENOBUFS;
1944
1945 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1946 nl_ftypes = nla_nest_start_noflag(msg, ift);
1947 if (!nl_ftypes)
1948 return -ENOBUFS;
1949 i = 0;
1950 stypes = mgmt_stypes[ift].rx;
1951 while (stypes) {
1952 if ((stypes & 1) &&
1953 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1954 (i << 4) | IEEE80211_FTYPE_MGMT))
1955 return -ENOBUFS;
1956 stypes >>= 1;
1957 i++;
1958 }
1959 nla_nest_end(msg, nl_ftypes);
1960 }
1961 nla_nest_end(msg, nl_ifs);
1962
1963 return 0;
1964}
1965
1966#define CMD(op, n) \
1967 do { \
1968 if (rdev->ops->op) { \
1969 i++; \
1970 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1971 goto nla_put_failure; \
1972 } \
1973 } while (0)
1974
1975static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1976 struct sk_buff *msg)
1977{
1978 int i = 0;
1979
1980
1981
1982
1983
1984
1985 CMD(add_virtual_intf, NEW_INTERFACE);
1986 CMD(change_virtual_intf, SET_INTERFACE);
1987 CMD(add_key, NEW_KEY);
1988 CMD(start_ap, START_AP);
1989 CMD(add_station, NEW_STATION);
1990 CMD(add_mpath, NEW_MPATH);
1991 CMD(update_mesh_config, SET_MESH_CONFIG);
1992 CMD(change_bss, SET_BSS);
1993 CMD(auth, AUTHENTICATE);
1994 CMD(assoc, ASSOCIATE);
1995 CMD(deauth, DEAUTHENTICATE);
1996 CMD(disassoc, DISASSOCIATE);
1997 CMD(join_ibss, JOIN_IBSS);
1998 CMD(join_mesh, JOIN_MESH);
1999 CMD(set_pmksa, SET_PMKSA);
2000 CMD(del_pmksa, DEL_PMKSA);
2001 CMD(flush_pmksa, FLUSH_PMKSA);
2002 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
2003 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
2004 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2005 CMD(mgmt_tx, FRAME);
2006 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
2007 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
2008 i++;
2009 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2010 goto nla_put_failure;
2011 }
2012 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
2013 rdev->ops->join_mesh) {
2014 i++;
2015 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
2016 goto nla_put_failure;
2017 }
2018 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
2019 CMD(tdls_mgmt, TDLS_MGMT);
2020 CMD(tdls_oper, TDLS_OPER);
2021 }
2022 if (rdev->wiphy.max_sched_scan_reqs)
2023 CMD(sched_scan_start, START_SCHED_SCAN);
2024 CMD(probe_client, PROBE_CLIENT);
2025 CMD(set_noack_map, SET_NOACK_MAP);
2026 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
2027 i++;
2028 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
2029 goto nla_put_failure;
2030 }
2031 CMD(start_p2p_device, START_P2P_DEVICE);
2032 CMD(set_mcast_rate, SET_MCAST_RATE);
2033#ifdef CONFIG_NL80211_TESTMODE
2034 CMD(testmode_cmd, TESTMODE);
2035#endif
2036
2037 if (rdev->ops->connect || rdev->ops->auth) {
2038 i++;
2039 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
2040 goto nla_put_failure;
2041 }
2042
2043 if (rdev->ops->disconnect || rdev->ops->deauth) {
2044 i++;
2045 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
2046 goto nla_put_failure;
2047 }
2048
2049 return i;
2050 nla_put_failure:
2051 return -ENOBUFS;
2052}
2053
2054static int
2055nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap,
2056 struct sk_buff *msg)
2057{
2058 struct nlattr *ftm;
2059
2060 if (!cap->ftm.supported)
2061 return 0;
2062
2063 ftm = nla_nest_start_noflag(msg, NL80211_PMSR_TYPE_FTM);
2064 if (!ftm)
2065 return -ENOBUFS;
2066
2067 if (cap->ftm.asap && nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_ASAP))
2068 return -ENOBUFS;
2069 if (cap->ftm.non_asap &&
2070 nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP))
2071 return -ENOBUFS;
2072 if (cap->ftm.request_lci &&
2073 nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI))
2074 return -ENOBUFS;
2075 if (cap->ftm.request_civicloc &&
2076 nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC))
2077 return -ENOBUFS;
2078 if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES,
2079 cap->ftm.preambles))
2080 return -ENOBUFS;
2081 if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS,
2082 cap->ftm.bandwidths))
2083 return -ENOBUFS;
2084 if (cap->ftm.max_bursts_exponent >= 0 &&
2085 nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT,
2086 cap->ftm.max_bursts_exponent))
2087 return -ENOBUFS;
2088 if (cap->ftm.max_ftms_per_burst &&
2089 nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST,
2090 cap->ftm.max_ftms_per_burst))
2091 return -ENOBUFS;
2092 if (cap->ftm.trigger_based &&
2093 nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED))
2094 return -ENOBUFS;
2095 if (cap->ftm.non_trigger_based &&
2096 nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED))
2097 return -ENOBUFS;
2098
2099 nla_nest_end(msg, ftm);
2100 return 0;
2101}
2102
2103static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev,
2104 struct sk_buff *msg)
2105{
2106 const struct cfg80211_pmsr_capabilities *cap = rdev->wiphy.pmsr_capa;
2107 struct nlattr *pmsr, *caps;
2108
2109 if (!cap)
2110 return 0;
2111
2112
2113
2114
2115
2116
2117 pmsr = nla_nest_start_noflag(msg, NL80211_ATTR_PEER_MEASUREMENTS);
2118 if (!pmsr)
2119 return -ENOBUFS;
2120
2121 if (nla_put_u32(msg, NL80211_PMSR_ATTR_MAX_PEERS, cap->max_peers))
2122 return -ENOBUFS;
2123
2124 if (cap->report_ap_tsf &&
2125 nla_put_flag(msg, NL80211_PMSR_ATTR_REPORT_AP_TSF))
2126 return -ENOBUFS;
2127
2128 if (cap->randomize_mac_addr &&
2129 nla_put_flag(msg, NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR))
2130 return -ENOBUFS;
2131
2132 caps = nla_nest_start_noflag(msg, NL80211_PMSR_ATTR_TYPE_CAPA);
2133 if (!caps)
2134 return -ENOBUFS;
2135
2136 if (nl80211_send_pmsr_ftm_capa(cap, msg))
2137 return -ENOBUFS;
2138
2139 nla_nest_end(msg, caps);
2140 nla_nest_end(msg, pmsr);
2141
2142 return 0;
2143}
2144
2145static int
2146nl80211_put_iftype_akm_suites(struct cfg80211_registered_device *rdev,
2147 struct sk_buff *msg)
2148{
2149 int i;
2150 struct nlattr *nested, *nested_akms;
2151 const struct wiphy_iftype_akm_suites *iftype_akms;
2152
2153 if (!rdev->wiphy.num_iftype_akm_suites ||
2154 !rdev->wiphy.iftype_akm_suites)
2155 return 0;
2156
2157 nested = nla_nest_start(msg, NL80211_ATTR_IFTYPE_AKM_SUITES);
2158 if (!nested)
2159 return -ENOBUFS;
2160
2161 for (i = 0; i < rdev->wiphy.num_iftype_akm_suites; i++) {
2162 nested_akms = nla_nest_start(msg, i + 1);
2163 if (!nested_akms)
2164 return -ENOBUFS;
2165
2166 iftype_akms = &rdev->wiphy.iftype_akm_suites[i];
2167
2168 if (nl80211_put_iftypes(msg, NL80211_IFTYPE_AKM_ATTR_IFTYPES,
2169 iftype_akms->iftypes_mask))
2170 return -ENOBUFS;
2171
2172 if (nla_put(msg, NL80211_IFTYPE_AKM_ATTR_SUITES,
2173 sizeof(u32) * iftype_akms->n_akm_suites,
2174 iftype_akms->akm_suites)) {
2175 return -ENOBUFS;
2176 }
2177 nla_nest_end(msg, nested_akms);
2178 }
2179
2180 nla_nest_end(msg, nested);
2181
2182 return 0;
2183}
2184
2185static int
2186nl80211_put_tid_config_support(struct cfg80211_registered_device *rdev,
2187 struct sk_buff *msg)
2188{
2189 struct nlattr *supp;
2190
2191 if (!rdev->wiphy.tid_config_support.vif &&
2192 !rdev->wiphy.tid_config_support.peer)
2193 return 0;
2194
2195 supp = nla_nest_start(msg, NL80211_ATTR_TID_CONFIG);
2196 if (!supp)
2197 return -ENOSPC;
2198
2199 if (rdev->wiphy.tid_config_support.vif &&
2200 nla_put_u64_64bit(msg, NL80211_TID_CONFIG_ATTR_VIF_SUPP,
2201 rdev->wiphy.tid_config_support.vif,
2202 NL80211_TID_CONFIG_ATTR_PAD))
2203 goto fail;
2204
2205 if (rdev->wiphy.tid_config_support.peer &&
2206 nla_put_u64_64bit(msg, NL80211_TID_CONFIG_ATTR_PEER_SUPP,
2207 rdev->wiphy.tid_config_support.peer,
2208 NL80211_TID_CONFIG_ATTR_PAD))
2209 goto fail;
2210
2211
2212 if (nla_put_u8(msg, NL80211_TID_CONFIG_ATTR_RETRY_SHORT,
2213 rdev->wiphy.tid_config_support.max_retry))
2214 goto fail;
2215 if (nla_put_u8(msg, NL80211_TID_CONFIG_ATTR_RETRY_LONG,
2216 rdev->wiphy.tid_config_support.max_retry))
2217 goto fail;
2218
2219 nla_nest_end(msg, supp);
2220
2221 return 0;
2222fail:
2223 nla_nest_cancel(msg, supp);
2224 return -ENOBUFS;
2225}
2226
2227static int
2228nl80211_put_sar_specs(struct cfg80211_registered_device *rdev,
2229 struct sk_buff *msg)
2230{
2231 struct nlattr *sar_capa, *specs, *sub_freq_range;
2232 u8 num_freq_ranges;
2233 int i;
2234
2235 if (!rdev->wiphy.sar_capa)
2236 return 0;
2237
2238 num_freq_ranges = rdev->wiphy.sar_capa->num_freq_ranges;
2239
2240 sar_capa = nla_nest_start(msg, NL80211_ATTR_SAR_SPEC);
2241 if (!sar_capa)
2242 return -ENOSPC;
2243
2244 if (nla_put_u32(msg, NL80211_SAR_ATTR_TYPE, rdev->wiphy.sar_capa->type))
2245 goto fail;
2246
2247 specs = nla_nest_start(msg, NL80211_SAR_ATTR_SPECS);
2248 if (!specs)
2249 goto fail;
2250
2251
2252 for (i = 0; i < num_freq_ranges; i++) {
2253 sub_freq_range = nla_nest_start(msg, i + 1);
2254 if (!sub_freq_range)
2255 goto fail;
2256
2257 if (nla_put_u32(msg, NL80211_SAR_ATTR_SPECS_START_FREQ,
2258 rdev->wiphy.sar_capa->freq_ranges[i].start_freq))
2259 goto fail;
2260
2261 if (nla_put_u32(msg, NL80211_SAR_ATTR_SPECS_END_FREQ,
2262 rdev->wiphy.sar_capa->freq_ranges[i].end_freq))
2263 goto fail;
2264
2265 nla_nest_end(msg, sub_freq_range);
2266 }
2267
2268 nla_nest_end(msg, specs);
2269 nla_nest_end(msg, sar_capa);
2270
2271 return 0;
2272fail:
2273 nla_nest_cancel(msg, sar_capa);
2274 return -ENOBUFS;
2275}
2276
2277static int nl80211_put_mbssid_support(struct wiphy *wiphy, struct sk_buff *msg)
2278{
2279 struct nlattr *config;
2280
2281 if (!wiphy->mbssid_max_interfaces)
2282 return 0;
2283
2284 config = nla_nest_start(msg, NL80211_ATTR_MBSSID_CONFIG);
2285 if (!config)
2286 return -ENOBUFS;
2287
2288 if (nla_put_u8(msg, NL80211_MBSSID_CONFIG_ATTR_MAX_INTERFACES,
2289 wiphy->mbssid_max_interfaces))
2290 goto fail;
2291
2292 if (wiphy->ema_max_profile_periodicity &&
2293 nla_put_u8(msg,
2294 NL80211_MBSSID_CONFIG_ATTR_MAX_EMA_PROFILE_PERIODICITY,
2295 wiphy->ema_max_profile_periodicity))
2296 goto fail;
2297
2298 nla_nest_end(msg, config);
2299 return 0;
2300
2301fail:
2302 nla_nest_cancel(msg, config);
2303 return -ENOBUFS;
2304}
2305
2306struct nl80211_dump_wiphy_state {
2307 s64 filter_wiphy;
2308 long start;
2309 long split_start, band_start, chan_start, capa_start;
2310 bool split;
2311};
2312
2313static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
2314 enum nl80211_commands cmd,
2315 struct sk_buff *msg, u32 portid, u32 seq,
2316 int flags, struct nl80211_dump_wiphy_state *state)
2317{
2318 void *hdr;
2319 struct nlattr *nl_bands, *nl_band;
2320 struct nlattr *nl_freqs, *nl_freq;
2321 struct nlattr *nl_cmds;
2322 enum nl80211_band band;
2323 struct ieee80211_channel *chan;
2324 int i;
2325 const struct ieee80211_txrx_stypes *mgmt_stypes =
2326 rdev->wiphy.mgmt_stypes;
2327 u32 features;
2328
2329 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2330 if (!hdr)
2331 return -ENOBUFS;
2332
2333 if (WARN_ON(!state))
2334 return -EINVAL;
2335
2336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2337 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
2338 wiphy_name(&rdev->wiphy)) ||
2339 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2340 cfg80211_rdev_list_generation))
2341 goto nla_put_failure;
2342
2343 if (cmd != NL80211_CMD_NEW_WIPHY)
2344 goto finish;
2345
2346 switch (state->split_start) {
2347 case 0:
2348 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
2349 rdev->wiphy.retry_short) ||
2350 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
2351 rdev->wiphy.retry_long) ||
2352 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
2353 rdev->wiphy.frag_threshold) ||
2354 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
2355 rdev->wiphy.rts_threshold) ||
2356 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
2357 rdev->wiphy.coverage_class) ||
2358 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
2359 rdev->wiphy.max_scan_ssids) ||
2360 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
2361 rdev->wiphy.max_sched_scan_ssids) ||
2362 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
2363 rdev->wiphy.max_scan_ie_len) ||
2364 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
2365 rdev->wiphy.max_sched_scan_ie_len) ||
2366 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
2367 rdev->wiphy.max_match_sets))
2368 goto nla_put_failure;
2369
2370 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
2371 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
2372 goto nla_put_failure;
2373 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
2374 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
2375 goto nla_put_failure;
2376 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2377 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
2378 goto nla_put_failure;
2379 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
2380 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
2381 goto nla_put_failure;
2382 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2383 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
2384 goto nla_put_failure;
2385 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
2386 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
2387 goto nla_put_failure;
2388 state->split_start++;
2389 if (state->split)
2390 break;
2391 fallthrough;
2392 case 1:
2393 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
2394 sizeof(u32) * rdev->wiphy.n_cipher_suites,
2395 rdev->wiphy.cipher_suites))
2396 goto nla_put_failure;
2397
2398 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
2399 rdev->wiphy.max_num_pmkids))
2400 goto nla_put_failure;
2401
2402 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
2403 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
2404 goto nla_put_failure;
2405
2406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
2407 rdev->wiphy.available_antennas_tx) ||
2408 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
2409 rdev->wiphy.available_antennas_rx))
2410 goto nla_put_failure;
2411
2412 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
2413 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
2414 rdev->wiphy.probe_resp_offload))
2415 goto nla_put_failure;
2416
2417 if ((rdev->wiphy.available_antennas_tx ||
2418 rdev->wiphy.available_antennas_rx) &&
2419 rdev->ops->get_antenna) {
2420 u32 tx_ant = 0, rx_ant = 0;
2421 int res;
2422
2423 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
2424 if (!res) {
2425 if (nla_put_u32(msg,
2426 NL80211_ATTR_WIPHY_ANTENNA_TX,
2427 tx_ant) ||
2428 nla_put_u32(msg,
2429 NL80211_ATTR_WIPHY_ANTENNA_RX,
2430 rx_ant))
2431 goto nla_put_failure;
2432 }
2433 }
2434
2435 state->split_start++;
2436 if (state->split)
2437 break;
2438 fallthrough;
2439 case 2:
2440 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
2441 rdev->wiphy.interface_modes))
2442 goto nla_put_failure;
2443 state->split_start++;
2444 if (state->split)
2445 break;
2446 fallthrough;
2447 case 3:
2448 nl_bands = nla_nest_start_noflag(msg,
2449 NL80211_ATTR_WIPHY_BANDS);
2450 if (!nl_bands)
2451 goto nla_put_failure;
2452
2453 for (band = state->band_start;
2454 band < (state->split ?
2455 NUM_NL80211_BANDS :
2456 NL80211_BAND_60GHZ + 1);
2457 band++) {
2458 struct ieee80211_supported_band *sband;
2459
2460
2461 if (band > NL80211_BAND_5GHZ && !state->split)
2462 break;
2463
2464 sband = rdev->wiphy.bands[band];
2465
2466 if (!sband)
2467 continue;
2468
2469 nl_band = nla_nest_start_noflag(msg, band);
2470 if (!nl_band)
2471 goto nla_put_failure;
2472
2473 switch (state->chan_start) {
2474 case 0:
2475 if (nl80211_send_band_rateinfo(msg, sband,
2476 state->split))
2477 goto nla_put_failure;
2478 state->chan_start++;
2479 if (state->split)
2480 break;
2481 fallthrough;
2482 default:
2483
2484 nl_freqs = nla_nest_start_noflag(msg,
2485 NL80211_BAND_ATTR_FREQS);
2486 if (!nl_freqs)
2487 goto nla_put_failure;
2488
2489 for (i = state->chan_start - 1;
2490 i < sband->n_channels;
2491 i++) {
2492 nl_freq = nla_nest_start_noflag(msg,
2493 i);
2494 if (!nl_freq)
2495 goto nla_put_failure;
2496
2497 chan = &sband->channels[i];
2498
2499 if (nl80211_msg_put_channel(
2500 msg, &rdev->wiphy, chan,
2501 state->split))
2502 goto nla_put_failure;
2503
2504 nla_nest_end(msg, nl_freq);
2505 if (state->split)
2506 break;
2507 }
2508 if (i < sband->n_channels)
2509 state->chan_start = i + 2;
2510 else
2511 state->chan_start = 0;
2512 nla_nest_end(msg, nl_freqs);
2513 }
2514
2515 nla_nest_end(msg, nl_band);
2516
2517 if (state->split) {
2518
2519 if (state->chan_start)
2520 band--;
2521 break;
2522 }
2523 }
2524 nla_nest_end(msg, nl_bands);
2525
2526 if (band < NUM_NL80211_BANDS)
2527 state->band_start = band + 1;
2528 else
2529 state->band_start = 0;
2530
2531
2532 if (state->band_start == 0 && state->chan_start == 0)
2533 state->split_start++;
2534 if (state->split)
2535 break;
2536 fallthrough;
2537 case 4:
2538 nl_cmds = nla_nest_start_noflag(msg,
2539 NL80211_ATTR_SUPPORTED_COMMANDS);
2540 if (!nl_cmds)
2541 goto nla_put_failure;
2542
2543 i = nl80211_add_commands_unsplit(rdev, msg);
2544 if (i < 0)
2545 goto nla_put_failure;
2546 if (state->split) {
2547 CMD(crit_proto_start, CRIT_PROTOCOL_START);
2548 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
2549 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
2550 CMD(channel_switch, CHANNEL_SWITCH);
2551 CMD(set_qos_map, SET_QOS_MAP);
2552 if (rdev->wiphy.features &
2553 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
2554 CMD(add_tx_ts, ADD_TX_TS);
2555 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
2556 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
2557 CMD(update_ft_ies, UPDATE_FT_IES);
2558 if (rdev->wiphy.sar_capa)
2559 CMD(set_sar_specs, SET_SAR_SPECS);
2560 }
2561#undef CMD
2562
2563 nla_nest_end(msg, nl_cmds);
2564 state->split_start++;
2565 if (state->split)
2566 break;
2567 fallthrough;
2568 case 5:
2569 if (rdev->ops->remain_on_channel &&
2570 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
2571 nla_put_u32(msg,
2572 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
2573 rdev->wiphy.max_remain_on_channel_duration))
2574 goto nla_put_failure;
2575
2576 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
2577 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
2578 goto nla_put_failure;
2579
2580 state->split_start++;
2581 if (state->split)
2582 break;
2583 fallthrough;
2584 case 6:
2585#ifdef CONFIG_PM
2586 if (nl80211_send_wowlan(msg, rdev, state->split))
2587 goto nla_put_failure;
2588 state->split_start++;
2589 if (state->split)
2590 break;
2591#else
2592 state->split_start++;
2593#endif
2594 fallthrough;
2595 case 7:
2596 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
2597 rdev->wiphy.software_iftypes))
2598 goto nla_put_failure;
2599
2600 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
2601 state->split))
2602 goto nla_put_failure;
2603
2604 state->split_start++;
2605 if (state->split)
2606 break;
2607 fallthrough;
2608 case 8:
2609 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
2610 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
2611 rdev->wiphy.ap_sme_capa))
2612 goto nla_put_failure;
2613
2614 features = rdev->wiphy.features;
2615
2616
2617
2618
2619
2620 if (state->split)
2621 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
2622 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
2623 goto nla_put_failure;
2624
2625 if (rdev->wiphy.ht_capa_mod_mask &&
2626 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
2627 sizeof(*rdev->wiphy.ht_capa_mod_mask),
2628 rdev->wiphy.ht_capa_mod_mask))
2629 goto nla_put_failure;
2630
2631 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
2632 rdev->wiphy.max_acl_mac_addrs &&
2633 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
2634 rdev->wiphy.max_acl_mac_addrs))
2635 goto nla_put_failure;
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647 if (state->split)
2648 state->split_start++;
2649 else
2650 state->split_start = 0;
2651 break;
2652 case 9:
2653 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
2654 goto nla_put_failure;
2655
2656 if (nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
2657 rdev->wiphy.max_sched_scan_plans) ||
2658 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
2659 rdev->wiphy.max_sched_scan_plan_interval) ||
2660 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
2661 rdev->wiphy.max_sched_scan_plan_iterations))
2662 goto nla_put_failure;
2663
2664 if (rdev->wiphy.extended_capabilities &&
2665 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
2666 rdev->wiphy.extended_capabilities_len,
2667 rdev->wiphy.extended_capabilities) ||
2668 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
2669 rdev->wiphy.extended_capabilities_len,
2670 rdev->wiphy.extended_capabilities_mask)))
2671 goto nla_put_failure;
2672
2673 if (rdev->wiphy.vht_capa_mod_mask &&
2674 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
2675 sizeof(*rdev->wiphy.vht_capa_mod_mask),
2676 rdev->wiphy.vht_capa_mod_mask))
2677 goto nla_put_failure;
2678
2679 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN,
2680 rdev->wiphy.perm_addr))
2681 goto nla_put_failure;
2682
2683 if (!is_zero_ether_addr(rdev->wiphy.addr_mask) &&
2684 nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN,
2685 rdev->wiphy.addr_mask))
2686 goto nla_put_failure;
2687
2688 if (rdev->wiphy.n_addresses > 1) {
2689 void *attr;
2690
2691 attr = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
2692 if (!attr)
2693 goto nla_put_failure;
2694
2695 for (i = 0; i < rdev->wiphy.n_addresses; i++)
2696 if (nla_put(msg, i + 1, ETH_ALEN,
2697 rdev->wiphy.addresses[i].addr))
2698 goto nla_put_failure;
2699
2700 nla_nest_end(msg, attr);
2701 }
2702
2703 state->split_start++;
2704 break;
2705 case 10:
2706 if (nl80211_send_coalesce(msg, rdev))
2707 goto nla_put_failure;
2708
2709 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
2710 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
2711 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
2712 goto nla_put_failure;
2713
2714 if (rdev->wiphy.max_ap_assoc_sta &&
2715 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
2716 rdev->wiphy.max_ap_assoc_sta))
2717 goto nla_put_failure;
2718
2719 state->split_start++;
2720 break;
2721 case 11:
2722 if (rdev->wiphy.n_vendor_commands) {
2723 const struct nl80211_vendor_cmd_info *info;
2724 struct nlattr *nested;
2725
2726 nested = nla_nest_start_noflag(msg,
2727 NL80211_ATTR_VENDOR_DATA);
2728 if (!nested)
2729 goto nla_put_failure;
2730
2731 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
2732 info = &rdev->wiphy.vendor_commands[i].info;
2733 if (nla_put(msg, i + 1, sizeof(*info), info))
2734 goto nla_put_failure;
2735 }
2736 nla_nest_end(msg, nested);
2737 }
2738
2739 if (rdev->wiphy.n_vendor_events) {
2740 const struct nl80211_vendor_cmd_info *info;
2741 struct nlattr *nested;
2742
2743 nested = nla_nest_start_noflag(msg,
2744 NL80211_ATTR_VENDOR_EVENTS);
2745 if (!nested)
2746 goto nla_put_failure;
2747
2748 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
2749 info = &rdev->wiphy.vendor_events[i];
2750 if (nla_put(msg, i + 1, sizeof(*info), info))
2751 goto nla_put_failure;
2752 }
2753 nla_nest_end(msg, nested);
2754 }
2755 state->split_start++;
2756 break;
2757 case 12:
2758 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
2759 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
2760 rdev->wiphy.max_num_csa_counters))
2761 goto nla_put_failure;
2762
2763 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
2764 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
2765 goto nla_put_failure;
2766
2767 if (rdev->wiphy.max_sched_scan_reqs &&
2768 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
2769 rdev->wiphy.max_sched_scan_reqs))
2770 goto nla_put_failure;
2771
2772 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
2773 sizeof(rdev->wiphy.ext_features),
2774 rdev->wiphy.ext_features))
2775 goto nla_put_failure;
2776
2777 if (rdev->wiphy.bss_select_support) {
2778 struct nlattr *nested;
2779 u32 bss_select_support = rdev->wiphy.bss_select_support;
2780
2781 nested = nla_nest_start_noflag(msg,
2782 NL80211_ATTR_BSS_SELECT);
2783 if (!nested)
2784 goto nla_put_failure;
2785
2786 i = 0;
2787 while (bss_select_support) {
2788 if ((bss_select_support & 1) &&
2789 nla_put_flag(msg, i))
2790 goto nla_put_failure;
2791 i++;
2792 bss_select_support >>= 1;
2793 }
2794 nla_nest_end(msg, nested);
2795 }
2796
2797 state->split_start++;
2798 break;
2799 case 13:
2800 if (rdev->wiphy.num_iftype_ext_capab &&
2801 rdev->wiphy.iftype_ext_capab) {
2802 struct nlattr *nested_ext_capab, *nested;
2803
2804 nested = nla_nest_start_noflag(msg,
2805 NL80211_ATTR_IFTYPE_EXT_CAPA);
2806 if (!nested)
2807 goto nla_put_failure;
2808
2809 for (i = state->capa_start;
2810 i < rdev->wiphy.num_iftype_ext_capab; i++) {
2811 const struct wiphy_iftype_ext_capab *capab;
2812
2813 capab = &rdev->wiphy.iftype_ext_capab[i];
2814
2815 nested_ext_capab = nla_nest_start_noflag(msg,
2816 i);
2817 if (!nested_ext_capab ||
2818 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
2819 capab->iftype) ||
2820 nla_put(msg, NL80211_ATTR_EXT_CAPA,
2821 capab->extended_capabilities_len,
2822 capab->extended_capabilities) ||
2823 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
2824 capab->extended_capabilities_len,
2825 capab->extended_capabilities_mask))
2826 goto nla_put_failure;
2827
2828 nla_nest_end(msg, nested_ext_capab);
2829 if (state->split)
2830 break;
2831 }
2832 nla_nest_end(msg, nested);
2833 if (i < rdev->wiphy.num_iftype_ext_capab) {
2834 state->capa_start = i + 1;
2835 break;
2836 }
2837 }
2838
2839 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
2840 rdev->wiphy.nan_supported_bands))
2841 goto nla_put_failure;
2842
2843 if (wiphy_ext_feature_isset(&rdev->wiphy,
2844 NL80211_EXT_FEATURE_TXQS)) {
2845 struct cfg80211_txq_stats txqstats = {};
2846 int res;
2847
2848 res = rdev_get_txq_stats(rdev, NULL, &txqstats);
2849 if (!res &&
2850 !nl80211_put_txq_stats(msg, &txqstats,
2851 NL80211_ATTR_TXQ_STATS))
2852 goto nla_put_failure;
2853
2854 if (nla_put_u32(msg, NL80211_ATTR_TXQ_LIMIT,
2855 rdev->wiphy.txq_limit))
2856 goto nla_put_failure;
2857 if (nla_put_u32(msg, NL80211_ATTR_TXQ_MEMORY_LIMIT,
2858 rdev->wiphy.txq_memory_limit))
2859 goto nla_put_failure;
2860 if (nla_put_u32(msg, NL80211_ATTR_TXQ_QUANTUM,
2861 rdev->wiphy.txq_quantum))
2862 goto nla_put_failure;
2863 }
2864
2865 state->split_start++;
2866 break;
2867 case 14:
2868 if (nl80211_send_pmsr_capa(rdev, msg))
2869 goto nla_put_failure;
2870
2871 state->split_start++;
2872 break;
2873 case 15:
2874 if (rdev->wiphy.akm_suites &&
2875 nla_put(msg, NL80211_ATTR_AKM_SUITES,
2876 sizeof(u32) * rdev->wiphy.n_akm_suites,
2877 rdev->wiphy.akm_suites))
2878 goto nla_put_failure;
2879
2880 if (nl80211_put_iftype_akm_suites(rdev, msg))
2881 goto nla_put_failure;
2882
2883 if (nl80211_put_tid_config_support(rdev, msg))
2884 goto nla_put_failure;
2885 state->split_start++;
2886 break;
2887 case 16:
2888 if (nl80211_put_sar_specs(rdev, msg))
2889 goto nla_put_failure;
2890
2891 if (nl80211_put_mbssid_support(&rdev->wiphy, msg))
2892 goto nla_put_failure;
2893
2894
2895 state->split_start = 0;
2896 break;
2897 }
2898 finish:
2899 genlmsg_end(msg, hdr);
2900 return 0;
2901
2902 nla_put_failure:
2903 genlmsg_cancel(msg, hdr);
2904 return -EMSGSIZE;
2905}
2906
2907static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
2908 struct netlink_callback *cb,
2909 struct nl80211_dump_wiphy_state *state)
2910{
2911 struct nlattr **tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL);
2912 int ret;
2913
2914 if (!tb)
2915 return -ENOMEM;
2916
2917 ret = nlmsg_parse_deprecated(cb->nlh,
2918 GENL_HDRLEN + nl80211_fam.hdrsize,
2919 tb, nl80211_fam.maxattr,
2920 nl80211_policy, NULL);
2921
2922 if (ret) {
2923 ret = 0;
2924 goto out;
2925 }
2926
2927 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
2928 if (tb[NL80211_ATTR_WIPHY])
2929 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
2930 if (tb[NL80211_ATTR_WDEV])
2931 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
2932 if (tb[NL80211_ATTR_IFINDEX]) {
2933 struct net_device *netdev;
2934 struct cfg80211_registered_device *rdev;
2935 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2936
2937 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2938 if (!netdev) {
2939 ret = -ENODEV;
2940 goto out;
2941 }
2942 if (netdev->ieee80211_ptr) {
2943 rdev = wiphy_to_rdev(
2944 netdev->ieee80211_ptr->wiphy);
2945 state->filter_wiphy = rdev->wiphy_idx;
2946 }
2947 }
2948
2949 ret = 0;
2950out:
2951 kfree(tb);
2952 return ret;
2953}
2954
2955static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
2956{
2957 int idx = 0, ret;
2958 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
2959 struct cfg80211_registered_device *rdev;
2960
2961 rtnl_lock();
2962 if (!state) {
2963 state = kzalloc(sizeof(*state), GFP_KERNEL);
2964 if (!state) {
2965 rtnl_unlock();
2966 return -ENOMEM;
2967 }
2968 state->filter_wiphy = -1;
2969 ret = nl80211_dump_wiphy_parse(skb, cb, state);
2970 if (ret) {
2971 kfree(state);
2972 rtnl_unlock();
2973 return ret;
2974 }
2975 cb->args[0] = (long)state;
2976 }
2977
2978 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2979 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2980 continue;
2981 if (++idx <= state->start)
2982 continue;
2983 if (state->filter_wiphy != -1 &&
2984 state->filter_wiphy != rdev->wiphy_idx)
2985 continue;
2986
2987 do {
2988 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
2989 skb,
2990 NETLINK_CB(cb->skb).portid,
2991 cb->nlh->nlmsg_seq,
2992 NLM_F_MULTI, state);
2993 if (ret < 0) {
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
3008 !skb->len && !state->split &&
3009 cb->min_dump_alloc < 4096) {
3010 cb->min_dump_alloc = 4096;
3011 state->split_start = 0;
3012 rtnl_unlock();
3013 return 1;
3014 }
3015 idx--;
3016 break;
3017 }
3018 } while (state->split_start > 0);
3019 break;
3020 }
3021 rtnl_unlock();
3022
3023 state->start = idx;
3024
3025 return skb->len;
3026}
3027
3028static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
3029{
3030 kfree((void *)cb->args[0]);
3031 return 0;
3032}
3033
3034static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
3035{
3036 struct sk_buff *msg;
3037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3038 struct nl80211_dump_wiphy_state state = {};
3039
3040 msg = nlmsg_new(4096, GFP_KERNEL);
3041 if (!msg)
3042 return -ENOMEM;
3043
3044 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
3045 info->snd_portid, info->snd_seq, 0,
3046 &state) < 0) {
3047 nlmsg_free(msg);
3048 return -ENOBUFS;
3049 }
3050
3051 return genlmsg_reply(msg, info);
3052}
3053
3054static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
3055 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
3056 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
3057 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
3058 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
3059 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
3060};
3061
3062static int parse_txq_params(struct nlattr *tb[],
3063 struct ieee80211_txq_params *txq_params)
3064{
3065 u8 ac;
3066
3067 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
3068 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
3069 !tb[NL80211_TXQ_ATTR_AIFS])
3070 return -EINVAL;
3071
3072 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
3073 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
3074 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
3075 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
3076 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
3077
3078 if (ac >= NL80211_NUM_ACS)
3079 return -EINVAL;
3080 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
3081 return 0;
3082}
3083
3084static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
3085{
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101 return !wdev ||
3102 wdev->iftype == NL80211_IFTYPE_AP ||
3103 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
3104 wdev->iftype == NL80211_IFTYPE_MONITOR ||
3105 wdev->iftype == NL80211_IFTYPE_P2P_GO;
3106}
3107
3108int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
3109 struct genl_info *info,
3110 struct cfg80211_chan_def *chandef)
3111{
3112 struct netlink_ext_ack *extack = info->extack;
3113 struct nlattr **attrs = info->attrs;
3114 u32 control_freq;
3115
3116 if (!attrs[NL80211_ATTR_WIPHY_FREQ])
3117 return -EINVAL;
3118
3119 control_freq = MHZ_TO_KHZ(
3120 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3121 if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET])
3122 control_freq +=
3123 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]);
3124
3125 memset(chandef, 0, sizeof(*chandef));
3126 chandef->chan = ieee80211_get_channel_khz(&rdev->wiphy, control_freq);
3127 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
3128 chandef->center_freq1 = KHZ_TO_MHZ(control_freq);
3129 chandef->freq1_offset = control_freq % 1000;
3130 chandef->center_freq2 = 0;
3131
3132
3133 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) {
3134 NL_SET_ERR_MSG_ATTR(extack, attrs[NL80211_ATTR_WIPHY_FREQ],
3135 "Channel is disabled");
3136 return -EINVAL;
3137 }
3138
3139 if (attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
3140 enum nl80211_channel_type chantype;
3141
3142 chantype = nla_get_u32(attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
3143
3144 switch (chantype) {
3145 case NL80211_CHAN_NO_HT:
3146 case NL80211_CHAN_HT20:
3147 case NL80211_CHAN_HT40PLUS:
3148 case NL80211_CHAN_HT40MINUS:
3149 cfg80211_chandef_create(chandef, chandef->chan,
3150 chantype);
3151
3152 if (attrs[NL80211_ATTR_CENTER_FREQ1] &&
3153 chandef->center_freq1 != nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1])) {
3154 NL_SET_ERR_MSG_ATTR(extack,
3155 attrs[NL80211_ATTR_CENTER_FREQ1],
3156 "bad center frequency 1");
3157 return -EINVAL;
3158 }
3159
3160 if (attrs[NL80211_ATTR_CENTER_FREQ2] &&
3161 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2])) {
3162 NL_SET_ERR_MSG_ATTR(extack,
3163 attrs[NL80211_ATTR_CENTER_FREQ2],
3164 "center frequency 2 can't be used");
3165 return -EINVAL;
3166 }
3167 break;
3168 default:
3169 NL_SET_ERR_MSG_ATTR(extack,
3170 attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE],
3171 "invalid channel type");
3172 return -EINVAL;
3173 }
3174 } else if (attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
3175 chandef->width =
3176 nla_get_u32(attrs[NL80211_ATTR_CHANNEL_WIDTH]);
3177 if (chandef->chan->band == NL80211_BAND_S1GHZ) {
3178
3179 if (chandef->width != ieee80211_s1g_channel_width(chandef->chan)) {
3180 NL_SET_ERR_MSG_ATTR(extack,
3181 attrs[NL80211_ATTR_CHANNEL_WIDTH],
3182 "bad channel width");
3183 return -EINVAL;
3184 }
3185 }
3186 if (attrs[NL80211_ATTR_CENTER_FREQ1]) {
3187 chandef->center_freq1 =
3188 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1]);
3189 if (attrs[NL80211_ATTR_CENTER_FREQ1_OFFSET])
3190 chandef->freq1_offset = nla_get_u32(
3191 attrs[NL80211_ATTR_CENTER_FREQ1_OFFSET]);
3192 else
3193 chandef->freq1_offset = 0;
3194 }
3195 if (attrs[NL80211_ATTR_CENTER_FREQ2])
3196 chandef->center_freq2 =
3197 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2]);
3198 }
3199
3200 if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) {
3201 chandef->edmg.channels =
3202 nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]);
3203
3204 if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG])
3205 chandef->edmg.bw_config =
3206 nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]);
3207 } else {
3208 chandef->edmg.bw_config = 0;
3209 chandef->edmg.channels = 0;
3210 }
3211
3212 if (!cfg80211_chandef_valid(chandef)) {
3213 NL_SET_ERR_MSG(extack, "invalid channel definition");
3214 return -EINVAL;
3215 }
3216
3217 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
3218 IEEE80211_CHAN_DISABLED)) {
3219 NL_SET_ERR_MSG(extack, "(extension) channel is disabled");
3220 return -EINVAL;
3221 }
3222
3223 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
3224 chandef->width == NL80211_CHAN_WIDTH_10) &&
3225 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) {
3226 NL_SET_ERR_MSG(extack, "5/10 MHz not supported");
3227 return -EINVAL;
3228 }
3229
3230 return 0;
3231}
3232
3233static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
3234 struct net_device *dev,
3235 struct genl_info *info)
3236{
3237 struct cfg80211_chan_def chandef;
3238 int result;
3239 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
3240 struct wireless_dev *wdev = NULL;
3241
3242 if (dev)
3243 wdev = dev->ieee80211_ptr;
3244 if (!nl80211_can_set_dev_channel(wdev))
3245 return -EOPNOTSUPP;
3246 if (wdev)
3247 iftype = wdev->iftype;
3248
3249 result = nl80211_parse_chandef(rdev, info, &chandef);
3250 if (result)
3251 return result;
3252
3253 switch (iftype) {
3254 case NL80211_IFTYPE_AP:
3255 case NL80211_IFTYPE_P2P_GO:
3256 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
3257 iftype)) {
3258 result = -EINVAL;
3259 break;
3260 }
3261 if (wdev->beacon_interval) {
3262 if (!dev || !rdev->ops->set_ap_chanwidth ||
3263 !(rdev->wiphy.features &
3264 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
3265 result = -EBUSY;
3266 break;
3267 }
3268
3269
3270 if (chandef.chan != wdev->preset_chandef.chan) {
3271 result = -EBUSY;
3272 break;
3273 }
3274 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
3275 if (result)
3276 break;
3277 }
3278 wdev->preset_chandef = chandef;
3279 result = 0;
3280 break;
3281 case NL80211_IFTYPE_MESH_POINT:
3282 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
3283 break;
3284 case NL80211_IFTYPE_MONITOR:
3285 result = cfg80211_set_monitor_channel(rdev, &chandef);
3286 break;
3287 default:
3288 result = -EINVAL;
3289 }
3290
3291 return result;
3292}
3293
3294static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
3295{
3296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3297 struct net_device *netdev = info->user_ptr[1];
3298
3299 return __nl80211_set_channel(rdev, netdev, info);
3300}
3301
3302static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
3303{
3304 struct cfg80211_registered_device *rdev = NULL;
3305 struct net_device *netdev = NULL;
3306 struct wireless_dev *wdev;
3307 int result = 0, rem_txq_params = 0;
3308 struct nlattr *nl_txq_params;
3309 u32 changed;
3310 u8 retry_short = 0, retry_long = 0;
3311 u32 frag_threshold = 0, rts_threshold = 0;
3312 u8 coverage_class = 0;
3313 u32 txq_limit = 0, txq_memory_limit = 0, txq_quantum = 0;
3314
3315 rtnl_lock();
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326 if (info->attrs[NL80211_ATTR_IFINDEX]) {
3327 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
3328
3329 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
3330 if (netdev && netdev->ieee80211_ptr)
3331 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
3332 else
3333 netdev = NULL;
3334 }
3335
3336 if (!netdev) {
3337 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
3338 info->attrs);
3339 if (IS_ERR(rdev)) {
3340 rtnl_unlock();
3341 return PTR_ERR(rdev);
3342 }
3343 wdev = NULL;
3344 netdev = NULL;
3345 result = 0;
3346 } else
3347 wdev = netdev->ieee80211_ptr;
3348
3349 wiphy_lock(&rdev->wiphy);
3350
3351
3352
3353
3354
3355
3356 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
3357 result = cfg80211_dev_rename(
3358 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
3359 rtnl_unlock();
3360
3361 if (result)
3362 goto out;
3363
3364 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
3365 struct ieee80211_txq_params txq_params;
3366 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
3367
3368 if (!rdev->ops->set_txq_params) {
3369 result = -EOPNOTSUPP;
3370 goto out;
3371 }
3372
3373 if (!netdev) {
3374 result = -EINVAL;
3375 goto out;
3376 }
3377
3378 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3379 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3380 result = -EINVAL;
3381 goto out;
3382 }
3383
3384 if (!netif_running(netdev)) {
3385 result = -ENETDOWN;
3386 goto out;
3387 }
3388
3389 nla_for_each_nested(nl_txq_params,
3390 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
3391 rem_txq_params) {
3392 result = nla_parse_nested_deprecated(tb,
3393 NL80211_TXQ_ATTR_MAX,
3394 nl_txq_params,
3395 txq_params_policy,
3396 info->extack);
3397 if (result)
3398 goto out;
3399 result = parse_txq_params(tb, &txq_params);
3400 if (result)
3401 goto out;
3402
3403 result = rdev_set_txq_params(rdev, netdev,
3404 &txq_params);
3405 if (result)
3406 goto out;
3407 }
3408 }
3409
3410 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3411 result = __nl80211_set_channel(
3412 rdev,
3413 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
3414 info);
3415 if (result)
3416 goto out;
3417 }
3418
3419 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
3420 struct wireless_dev *txp_wdev = wdev;
3421 enum nl80211_tx_power_setting type;
3422 int idx, mbm = 0;
3423
3424 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
3425 txp_wdev = NULL;
3426
3427 if (!rdev->ops->set_tx_power) {
3428 result = -EOPNOTSUPP;
3429 goto out;
3430 }
3431
3432 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
3433 type = nla_get_u32(info->attrs[idx]);
3434
3435 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
3436 (type != NL80211_TX_POWER_AUTOMATIC)) {
3437 result = -EINVAL;
3438 goto out;
3439 }
3440
3441 if (type != NL80211_TX_POWER_AUTOMATIC) {
3442 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
3443 mbm = nla_get_u32(info->attrs[idx]);
3444 }
3445
3446 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
3447 if (result)
3448 goto out;
3449 }
3450
3451 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
3452 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
3453 u32 tx_ant, rx_ant;
3454
3455 if ((!rdev->wiphy.available_antennas_tx &&
3456 !rdev->wiphy.available_antennas_rx) ||
3457 !rdev->ops->set_antenna) {
3458 result = -EOPNOTSUPP;
3459 goto out;
3460 }
3461
3462 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
3463 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
3464
3465
3466
3467 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
3468 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
3469 result = -EINVAL;
3470 goto out;
3471 }
3472
3473 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
3474 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
3475
3476 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
3477 if (result)
3478 goto out;
3479 }
3480
3481 changed = 0;
3482
3483 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
3484 retry_short = nla_get_u8(
3485 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
3486
3487 changed |= WIPHY_PARAM_RETRY_SHORT;
3488 }
3489
3490 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
3491 retry_long = nla_get_u8(
3492 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
3493
3494 changed |= WIPHY_PARAM_RETRY_LONG;
3495 }
3496
3497 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
3498 frag_threshold = nla_get_u32(
3499 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
3500 if (frag_threshold < 256) {
3501 result = -EINVAL;
3502 goto out;
3503 }
3504
3505 if (frag_threshold != (u32) -1) {
3506
3507
3508
3509
3510
3511
3512 frag_threshold &= ~0x1;
3513 }
3514 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
3515 }
3516
3517 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
3518 rts_threshold = nla_get_u32(
3519 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
3520 changed |= WIPHY_PARAM_RTS_THRESHOLD;
3521 }
3522
3523 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3524 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
3525 result = -EINVAL;
3526 goto out;
3527 }
3528
3529 coverage_class = nla_get_u8(
3530 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
3531 changed |= WIPHY_PARAM_COVERAGE_CLASS;
3532 }
3533
3534 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
3535 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION)) {
3536 result = -EOPNOTSUPP;
3537 goto out;
3538 }
3539
3540 changed |= WIPHY_PARAM_DYN_ACK;
3541 }
3542
3543 if (info->attrs[NL80211_ATTR_TXQ_LIMIT]) {
3544 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3545 NL80211_EXT_FEATURE_TXQS)) {
3546 result = -EOPNOTSUPP;
3547 goto out;
3548 }
3549 txq_limit = nla_get_u32(
3550 info->attrs[NL80211_ATTR_TXQ_LIMIT]);
3551 changed |= WIPHY_PARAM_TXQ_LIMIT;
3552 }
3553
3554 if (info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]) {
3555 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3556 NL80211_EXT_FEATURE_TXQS)) {
3557 result = -EOPNOTSUPP;
3558 goto out;
3559 }
3560 txq_memory_limit = nla_get_u32(
3561 info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]);
3562 changed |= WIPHY_PARAM_TXQ_MEMORY_LIMIT;
3563 }
3564
3565 if (info->attrs[NL80211_ATTR_TXQ_QUANTUM]) {
3566 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3567 NL80211_EXT_FEATURE_TXQS)) {
3568 result = -EOPNOTSUPP;
3569 goto out;
3570 }
3571 txq_quantum = nla_get_u32(
3572 info->attrs[NL80211_ATTR_TXQ_QUANTUM]);
3573 changed |= WIPHY_PARAM_TXQ_QUANTUM;
3574 }
3575
3576 if (changed) {
3577 u8 old_retry_short, old_retry_long;
3578 u32 old_frag_threshold, old_rts_threshold;
3579 u8 old_coverage_class;
3580 u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum;
3581
3582 if (!rdev->ops->set_wiphy_params) {
3583 result = -EOPNOTSUPP;
3584 goto out;
3585 }
3586
3587 old_retry_short = rdev->wiphy.retry_short;
3588 old_retry_long = rdev->wiphy.retry_long;
3589 old_frag_threshold = rdev->wiphy.frag_threshold;
3590 old_rts_threshold = rdev->wiphy.rts_threshold;
3591 old_coverage_class = rdev->wiphy.coverage_class;
3592 old_txq_limit = rdev->wiphy.txq_limit;
3593 old_txq_memory_limit = rdev->wiphy.txq_memory_limit;
3594 old_txq_quantum = rdev->wiphy.txq_quantum;
3595
3596 if (changed & WIPHY_PARAM_RETRY_SHORT)
3597 rdev->wiphy.retry_short = retry_short;
3598 if (changed & WIPHY_PARAM_RETRY_LONG)
3599 rdev->wiphy.retry_long = retry_long;
3600 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
3601 rdev->wiphy.frag_threshold = frag_threshold;
3602 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
3603 rdev->wiphy.rts_threshold = rts_threshold;
3604 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
3605 rdev->wiphy.coverage_class = coverage_class;
3606 if (changed & WIPHY_PARAM_TXQ_LIMIT)
3607 rdev->wiphy.txq_limit = txq_limit;
3608 if (changed & WIPHY_PARAM_TXQ_MEMORY_LIMIT)
3609 rdev->wiphy.txq_memory_limit = txq_memory_limit;
3610 if (changed & WIPHY_PARAM_TXQ_QUANTUM)
3611 rdev->wiphy.txq_quantum = txq_quantum;
3612
3613 result = rdev_set_wiphy_params(rdev, changed);
3614 if (result) {
3615 rdev->wiphy.retry_short = old_retry_short;
3616 rdev->wiphy.retry_long = old_retry_long;
3617 rdev->wiphy.frag_threshold = old_frag_threshold;
3618 rdev->wiphy.rts_threshold = old_rts_threshold;
3619 rdev->wiphy.coverage_class = old_coverage_class;
3620 rdev->wiphy.txq_limit = old_txq_limit;
3621 rdev->wiphy.txq_memory_limit = old_txq_memory_limit;
3622 rdev->wiphy.txq_quantum = old_txq_quantum;
3623 goto out;
3624 }
3625 }
3626
3627 result = 0;
3628
3629out:
3630 wiphy_unlock(&rdev->wiphy);
3631 return result;
3632}
3633
3634static int nl80211_send_chandef(struct sk_buff *msg,
3635 const struct cfg80211_chan_def *chandef)
3636{
3637 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
3638 return -EINVAL;
3639
3640 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
3641 chandef->chan->center_freq))
3642 return -ENOBUFS;
3643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET,
3644 chandef->chan->freq_offset))
3645 return -ENOBUFS;
3646 switch (chandef->width) {
3647 case NL80211_CHAN_WIDTH_20_NOHT:
3648 case NL80211_CHAN_WIDTH_20:
3649 case NL80211_CHAN_WIDTH_40:
3650 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
3651 cfg80211_get_chandef_type(chandef)))
3652 return -ENOBUFS;
3653 break;
3654 default:
3655 break;
3656 }
3657 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
3658 return -ENOBUFS;
3659 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
3660 return -ENOBUFS;
3661 if (chandef->center_freq2 &&
3662 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
3663 return -ENOBUFS;
3664 return 0;
3665}
3666
3667static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
3668 struct cfg80211_registered_device *rdev,
3669 struct wireless_dev *wdev,
3670 enum nl80211_commands cmd)
3671{
3672 struct net_device *dev = wdev->netdev;
3673 void *hdr;
3674
3675 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
3676 cmd != NL80211_CMD_DEL_INTERFACE &&
3677 cmd != NL80211_CMD_SET_INTERFACE);
3678
3679 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3680 if (!hdr)
3681 return -1;
3682
3683 if (dev &&
3684 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3685 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
3686 goto nla_put_failure;
3687
3688 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3689 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
3690 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
3691 NL80211_ATTR_PAD) ||
3692 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
3693 nla_put_u32(msg, NL80211_ATTR_GENERATION,
3694 rdev->devlist_generation ^
3695 (cfg80211_rdev_list_generation << 2)) ||
3696 nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr))
3697 goto nla_put_failure;
3698
3699 if (rdev->ops->get_channel) {
3700 int ret;
3701 struct cfg80211_chan_def chandef = {};
3702
3703 ret = rdev_get_channel(rdev, wdev, &chandef);
3704 if (ret == 0) {
3705 if (nl80211_send_chandef(msg, &chandef))
3706 goto nla_put_failure;
3707 }
3708 }
3709
3710 if (rdev->ops->get_tx_power) {
3711 int dbm, ret;
3712
3713 ret = rdev_get_tx_power(rdev, wdev, &dbm);
3714 if (ret == 0 &&
3715 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
3716 DBM_TO_MBM(dbm)))
3717 goto nla_put_failure;
3718 }
3719
3720 wdev_lock(wdev);
3721 switch (wdev->iftype) {
3722 case NL80211_IFTYPE_AP:
3723 case NL80211_IFTYPE_P2P_GO:
3724 if (wdev->ssid_len &&
3725 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
3726 goto nla_put_failure_locked;
3727 break;
3728 case NL80211_IFTYPE_STATION:
3729 case NL80211_IFTYPE_P2P_CLIENT:
3730 case NL80211_IFTYPE_ADHOC: {
3731 const struct element *ssid_elem;
3732
3733 if (!wdev->current_bss)
3734 break;
3735 rcu_read_lock();
3736 ssid_elem = ieee80211_bss_get_elem(&wdev->current_bss->pub,
3737 WLAN_EID_SSID);
3738 if (ssid_elem &&
3739 nla_put(msg, NL80211_ATTR_SSID, ssid_elem->datalen,
3740 ssid_elem->data))
3741 goto nla_put_failure_rcu_locked;
3742 rcu_read_unlock();
3743 break;
3744 }
3745 default:
3746
3747 break;
3748 }
3749 wdev_unlock(wdev);
3750
3751 if (rdev->ops->get_txq_stats) {
3752 struct cfg80211_txq_stats txqstats = {};
3753 int ret = rdev_get_txq_stats(rdev, wdev, &txqstats);
3754
3755 if (ret == 0 &&
3756 !nl80211_put_txq_stats(msg, &txqstats,
3757 NL80211_ATTR_TXQ_STATS))
3758 goto nla_put_failure;
3759 }
3760
3761 genlmsg_end(msg, hdr);
3762 return 0;
3763
3764 nla_put_failure_rcu_locked:
3765 rcu_read_unlock();
3766 nla_put_failure_locked:
3767 wdev_unlock(wdev);
3768 nla_put_failure:
3769 genlmsg_cancel(msg, hdr);
3770 return -EMSGSIZE;
3771}
3772
3773static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
3774{
3775 int wp_idx = 0;
3776 int if_idx = 0;
3777 int wp_start = cb->args[0];
3778 int if_start = cb->args[1];
3779 int filter_wiphy = -1;
3780 struct cfg80211_registered_device *rdev;
3781 struct wireless_dev *wdev;
3782 int ret;
3783
3784 rtnl_lock();
3785 if (!cb->args[2]) {
3786 struct nl80211_dump_wiphy_state state = {
3787 .filter_wiphy = -1,
3788 };
3789
3790 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
3791 if (ret)
3792 goto out_unlock;
3793
3794 filter_wiphy = state.filter_wiphy;
3795
3796
3797
3798
3799
3800 if (filter_wiphy >= 0)
3801 cb->args[2] = filter_wiphy + 1;
3802 else
3803 cb->args[2] = -1;
3804 } else if (cb->args[2] > 0) {
3805 filter_wiphy = cb->args[2] - 1;
3806 }
3807
3808 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
3809 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
3810 continue;
3811 if (wp_idx < wp_start) {
3812 wp_idx++;
3813 continue;
3814 }
3815
3816 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
3817 continue;
3818
3819 if_idx = 0;
3820
3821 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3822 if (if_idx < if_start) {
3823 if_idx++;
3824 continue;
3825 }
3826 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
3827 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3828 rdev, wdev,
3829 NL80211_CMD_NEW_INTERFACE) < 0) {
3830 goto out;
3831 }
3832 if_idx++;
3833 }
3834
3835 wp_idx++;
3836 }
3837 out:
3838 cb->args[0] = wp_idx;
3839 cb->args[1] = if_idx;
3840
3841 ret = skb->len;
3842 out_unlock:
3843 rtnl_unlock();
3844
3845 return ret;
3846}
3847
3848static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
3849{
3850 struct sk_buff *msg;
3851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3852 struct wireless_dev *wdev = info->user_ptr[1];
3853
3854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3855 if (!msg)
3856 return -ENOMEM;
3857
3858 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3859 rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) {
3860 nlmsg_free(msg);
3861 return -ENOBUFS;
3862 }
3863
3864 return genlmsg_reply(msg, info);
3865}
3866
3867static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
3868 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
3869 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
3870 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
3871 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
3872 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
3873 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
3874};
3875
3876static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
3877{
3878 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
3879 int flag;
3880
3881 *mntrflags = 0;
3882
3883 if (!nla)
3884 return -EINVAL;
3885
3886 if (nla_parse_nested_deprecated(flags, NL80211_MNTR_FLAG_MAX, nla, mntr_flags_policy, NULL))
3887 return -EINVAL;
3888
3889 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
3890 if (flags[flag])
3891 *mntrflags |= (1<<flag);
3892
3893 *mntrflags |= MONITOR_FLAG_CHANGED;
3894
3895 return 0;
3896}
3897
3898static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
3899 enum nl80211_iftype type,
3900 struct genl_info *info,
3901 struct vif_params *params)
3902{
3903 bool change = false;
3904 int err;
3905
3906 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
3907 if (type != NL80211_IFTYPE_MONITOR)
3908 return -EINVAL;
3909
3910 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
3911 ¶ms->flags);
3912 if (err)
3913 return err;
3914
3915 change = true;
3916 }
3917
3918 if (params->flags & MONITOR_FLAG_ACTIVE &&
3919 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
3920 return -EOPNOTSUPP;
3921
3922 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
3923 const u8 *mumimo_groups;
3924 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3925
3926 if (type != NL80211_IFTYPE_MONITOR)
3927 return -EINVAL;
3928
3929 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3930 return -EOPNOTSUPP;
3931
3932 mumimo_groups =
3933 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
3934
3935
3936 if ((mumimo_groups[0] & BIT(0)) ||
3937 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
3938 return -EINVAL;
3939
3940 params->vht_mumimo_groups = mumimo_groups;
3941 change = true;
3942 }
3943
3944 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
3945 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3946
3947 if (type != NL80211_IFTYPE_MONITOR)
3948 return -EINVAL;
3949
3950 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3951 return -EOPNOTSUPP;
3952
3953 params->vht_mumimo_follow_addr =
3954 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
3955 change = true;
3956 }
3957
3958 return change ? 1 : 0;
3959}
3960
3961static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
3962 struct net_device *netdev, u8 use_4addr,
3963 enum nl80211_iftype iftype)
3964{
3965 if (!use_4addr) {
3966 if (netdev && netif_is_bridge_port(netdev))
3967 return -EBUSY;
3968 return 0;
3969 }
3970
3971 switch (iftype) {
3972 case NL80211_IFTYPE_AP_VLAN:
3973 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
3974 return 0;
3975 break;
3976 case NL80211_IFTYPE_STATION:
3977 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
3978 return 0;
3979 break;
3980 default:
3981 break;
3982 }
3983
3984 return -EOPNOTSUPP;
3985}
3986
3987static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
3988{
3989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3990 struct vif_params params;
3991 int err;
3992 enum nl80211_iftype otype, ntype;
3993 struct net_device *dev = info->user_ptr[1];
3994 bool change = false;
3995
3996 memset(¶ms, 0, sizeof(params));
3997
3998 otype = ntype = dev->ieee80211_ptr->iftype;
3999
4000 if (info->attrs[NL80211_ATTR_IFTYPE]) {
4001 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
4002 if (otype != ntype)
4003 change = true;
4004 }
4005
4006 if (info->attrs[NL80211_ATTR_MESH_ID]) {
4007 struct wireless_dev *wdev = dev->ieee80211_ptr;
4008
4009 if (ntype != NL80211_IFTYPE_MESH_POINT)
4010 return -EINVAL;
4011 if (netif_running(dev))
4012 return -EBUSY;
4013
4014 wdev_lock(wdev);
4015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
4016 IEEE80211_MAX_MESH_ID_LEN);
4017 wdev->mesh_id_up_len =
4018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
4019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
4020 wdev->mesh_id_up_len);
4021 wdev_unlock(wdev);
4022 }
4023
4024 if (info->attrs[NL80211_ATTR_4ADDR]) {
4025 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
4026 change = true;
4027 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
4028 if (err)
4029 return err;
4030 } else {
4031 params.use_4addr = -1;
4032 }
4033
4034 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
4035 if (err < 0)
4036 return err;
4037 if (err > 0)
4038 change = true;
4039
4040 if (change)
4041 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
4042 else
4043 err = 0;
4044
4045 if (!err && params.use_4addr != -1)
4046 dev->ieee80211_ptr->use_4addr = params.use_4addr;
4047
4048 if (change && !err) {
4049 struct wireless_dev *wdev = dev->ieee80211_ptr;
4050
4051 nl80211_notify_iface(rdev, wdev, NL80211_CMD_SET_INTERFACE);
4052 }
4053
4054 return err;
4055}
4056
4057static int _nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
4058{
4059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4060 struct vif_params params;
4061 struct wireless_dev *wdev;
4062 struct sk_buff *msg;
4063 int err;
4064 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
4065
4066 memset(¶ms, 0, sizeof(params));
4067
4068 if (!info->attrs[NL80211_ATTR_IFNAME])
4069 return -EINVAL;
4070
4071 if (info->attrs[NL80211_ATTR_IFTYPE])
4072 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
4073
4074 if (!rdev->ops->add_virtual_intf)
4075 return -EOPNOTSUPP;
4076
4077 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
4078 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
4079 info->attrs[NL80211_ATTR_MAC]) {
4080 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
4081 ETH_ALEN);
4082 if (!is_valid_ether_addr(params.macaddr))
4083 return -EADDRNOTAVAIL;
4084 }
4085
4086 if (info->attrs[NL80211_ATTR_4ADDR]) {
4087 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
4088 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
4089 if (err)
4090 return err;
4091 }
4092
4093 if (!cfg80211_iftype_allowed(&rdev->wiphy, type, params.use_4addr, 0))
4094 return -EOPNOTSUPP;
4095
4096 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
4097 if (err < 0)
4098 return err;
4099
4100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4101 if (!msg)
4102 return -ENOMEM;
4103
4104 wdev = rdev_add_virtual_intf(rdev,
4105 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
4106 NET_NAME_USER, type, ¶ms);
4107 if (WARN_ON(!wdev)) {
4108 nlmsg_free(msg);
4109 return -EPROTO;
4110 } else if (IS_ERR(wdev)) {
4111 nlmsg_free(msg);
4112 return PTR_ERR(wdev);
4113 }
4114
4115 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
4116 wdev->owner_nlportid = info->snd_portid;
4117
4118 switch (type) {
4119 case NL80211_IFTYPE_MESH_POINT:
4120 if (!info->attrs[NL80211_ATTR_MESH_ID])
4121 break;
4122 wdev_lock(wdev);
4123 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
4124 IEEE80211_MAX_MESH_ID_LEN);
4125 wdev->mesh_id_up_len =
4126 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
4127 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
4128 wdev->mesh_id_up_len);
4129 wdev_unlock(wdev);
4130 break;
4131 case NL80211_IFTYPE_NAN:
4132 case NL80211_IFTYPE_P2P_DEVICE:
4133
4134
4135
4136
4137 cfg80211_init_wdev(wdev);
4138 cfg80211_register_wdev(rdev, wdev);
4139 break;
4140 default:
4141 break;
4142 }
4143
4144 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
4145 rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) {
4146 nlmsg_free(msg);
4147 return -ENOBUFS;
4148 }
4149
4150 return genlmsg_reply(msg, info);
4151}
4152
4153static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
4154{
4155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4156 int ret;
4157
4158
4159 cfg80211_destroy_ifaces(rdev);
4160
4161 wiphy_lock(&rdev->wiphy);
4162 ret = _nl80211_new_interface(skb, info);
4163 wiphy_unlock(&rdev->wiphy);
4164
4165 return ret;
4166}
4167
4168static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
4169{
4170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4171 struct wireless_dev *wdev = info->user_ptr[1];
4172
4173 if (!rdev->ops->del_virtual_intf)
4174 return -EOPNOTSUPP;
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185 mutex_unlock(&rdev->wiphy.mtx);
4186
4187
4188
4189
4190
4191
4192
4193
4194 if (!wdev->netdev)
4195 info->user_ptr[1] = NULL;
4196 else
4197 dev_close(wdev->netdev);
4198
4199 mutex_lock(&rdev->wiphy.mtx);
4200
4201 return rdev_del_virtual_intf(rdev, wdev);
4202}
4203
4204static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
4205{
4206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4207 struct net_device *dev = info->user_ptr[1];
4208 u16 noack_map;
4209
4210 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
4211 return -EINVAL;
4212
4213 if (!rdev->ops->set_noack_map)
4214 return -EOPNOTSUPP;
4215
4216 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
4217
4218 return rdev_set_noack_map(rdev, dev, noack_map);
4219}
4220
4221struct get_key_cookie {
4222 struct sk_buff *msg;
4223 int error;
4224 int idx;
4225};
4226
4227static void get_key_callback(void *c, struct key_params *params)
4228{
4229 struct nlattr *key;
4230 struct get_key_cookie *cookie = c;
4231
4232 if ((params->key &&
4233 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
4234 params->key_len, params->key)) ||
4235 (params->seq &&
4236 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
4237 params->seq_len, params->seq)) ||
4238 (params->cipher &&
4239 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
4240 params->cipher)))
4241 goto nla_put_failure;
4242
4243 key = nla_nest_start_noflag(cookie->msg, NL80211_ATTR_KEY);
4244 if (!key)
4245 goto nla_put_failure;
4246
4247 if ((params->key &&
4248 nla_put(cookie->msg, NL80211_KEY_DATA,
4249 params->key_len, params->key)) ||
4250 (params->seq &&
4251 nla_put(cookie->msg, NL80211_KEY_SEQ,
4252 params->seq_len, params->seq)) ||
4253 (params->cipher &&
4254 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
4255 params->cipher)))
4256 goto nla_put_failure;
4257
4258 if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx))
4259 goto nla_put_failure;
4260
4261 nla_nest_end(cookie->msg, key);
4262
4263 return;
4264 nla_put_failure:
4265 cookie->error = 1;
4266}
4267
4268static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
4269{
4270 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4271 int err;
4272 struct net_device *dev = info->user_ptr[1];
4273 u8 key_idx = 0;
4274 const u8 *mac_addr = NULL;
4275 bool pairwise;
4276 struct get_key_cookie cookie = {
4277 .error = 0,
4278 };
4279 void *hdr;
4280 struct sk_buff *msg;
4281 bool bigtk_support = false;
4282
4283 if (wiphy_ext_feature_isset(&rdev->wiphy,
4284 NL80211_EXT_FEATURE_BEACON_PROTECTION))
4285 bigtk_support = true;
4286
4287 if ((dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION ||
4288 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
4289 wiphy_ext_feature_isset(&rdev->wiphy,
4290 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT))
4291 bigtk_support = true;
4292
4293 if (info->attrs[NL80211_ATTR_KEY_IDX]) {
4294 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
4295
4296 if (key_idx >= 6 && key_idx <= 7 && !bigtk_support) {
4297 GENL_SET_ERR_MSG(info, "BIGTK not supported");
4298 return -EINVAL;
4299 }
4300 }
4301
4302 if (info->attrs[NL80211_ATTR_MAC])
4303 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4304
4305 pairwise = !!mac_addr;
4306 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
4307 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
4308
4309 if (kt != NL80211_KEYTYPE_GROUP &&
4310 kt != NL80211_KEYTYPE_PAIRWISE)
4311 return -EINVAL;
4312 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
4313 }
4314
4315 if (!rdev->ops->get_key)
4316 return -EOPNOTSUPP;
4317
4318 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
4319 return -ENOENT;
4320
4321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4322 if (!msg)
4323 return -ENOMEM;
4324
4325 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4326 NL80211_CMD_NEW_KEY);
4327 if (!hdr)
4328 goto nla_put_failure;
4329
4330 cookie.msg = msg;
4331 cookie.idx = key_idx;
4332
4333 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4334 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
4335 goto nla_put_failure;
4336 if (mac_addr &&
4337 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
4338 goto nla_put_failure;
4339
4340 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
4341 get_key_callback);
4342
4343 if (err)
4344 goto free_msg;
4345
4346 if (cookie.error)
4347 goto nla_put_failure;
4348
4349 genlmsg_end(msg, hdr);
4350 return genlmsg_reply(msg, info);
4351
4352 nla_put_failure:
4353 err = -ENOBUFS;
4354 free_msg:
4355 nlmsg_free(msg);
4356 return err;
4357}
4358
4359static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
4360{
4361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4362 struct key_parse key;
4363 int err;
4364 struct net_device *dev = info->user_ptr[1];
4365
4366 err = nl80211_parse_key(info, &key);
4367 if (err)
4368 return err;
4369
4370 if (key.idx < 0)
4371 return -EINVAL;
4372
4373
4374
4375
4376 if (!key.def && !key.defmgmt && !key.defbeacon &&
4377 !(key.p.mode == NL80211_KEY_SET_TX))
4378 return -EINVAL;
4379
4380 wdev_lock(dev->ieee80211_ptr);
4381
4382 if (key.def) {
4383 if (!rdev->ops->set_default_key) {
4384 err = -EOPNOTSUPP;
4385 goto out;
4386 }
4387
4388 err = nl80211_key_allowed(dev->ieee80211_ptr);
4389 if (err)
4390 goto out;
4391
4392 err = rdev_set_default_key(rdev, dev, key.idx,
4393 key.def_uni, key.def_multi);
4394
4395 if (err)
4396 goto out;
4397
4398#ifdef CONFIG_CFG80211_WEXT
4399 dev->ieee80211_ptr->wext.default_key = key.idx;
4400#endif
4401 } else if (key.defmgmt) {
4402 if (key.def_uni || !key.def_multi) {
4403 err = -EINVAL;
4404 goto out;
4405 }
4406
4407 if (!rdev->ops->set_default_mgmt_key) {
4408 err = -EOPNOTSUPP;
4409 goto out;
4410 }
4411
4412 err = nl80211_key_allowed(dev->ieee80211_ptr);
4413 if (err)
4414 goto out;
4415
4416 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
4417 if (err)
4418 goto out;
4419
4420#ifdef CONFIG_CFG80211_WEXT
4421 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
4422#endif
4423 } else if (key.defbeacon) {
4424 if (key.def_uni || !key.def_multi) {
4425 err = -EINVAL;
4426 goto out;
4427 }
4428
4429 if (!rdev->ops->set_default_beacon_key) {
4430 err = -EOPNOTSUPP;
4431 goto out;
4432 }
4433
4434 err = nl80211_key_allowed(dev->ieee80211_ptr);
4435 if (err)
4436 goto out;
4437
4438 err = rdev_set_default_beacon_key(rdev, dev, key.idx);
4439 if (err)
4440 goto out;
4441 } else if (key.p.mode == NL80211_KEY_SET_TX &&
4442 wiphy_ext_feature_isset(&rdev->wiphy,
4443 NL80211_EXT_FEATURE_EXT_KEY_ID)) {
4444 u8 *mac_addr = NULL;
4445
4446 if (info->attrs[NL80211_ATTR_MAC])
4447 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4448
4449 if (!mac_addr || key.idx < 0 || key.idx > 1) {
4450 err = -EINVAL;
4451 goto out;
4452 }
4453
4454 err = rdev_add_key(rdev, dev, key.idx,
4455 NL80211_KEYTYPE_PAIRWISE,
4456 mac_addr, &key.p);
4457 } else {
4458 err = -EINVAL;
4459 }
4460 out:
4461 wdev_unlock(dev->ieee80211_ptr);
4462
4463 return err;
4464}
4465
4466static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
4467{
4468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4469 int err;
4470 struct net_device *dev = info->user_ptr[1];
4471 struct key_parse key;
4472 const u8 *mac_addr = NULL;
4473
4474 err = nl80211_parse_key(info, &key);
4475 if (err)
4476 return err;
4477
4478 if (!key.p.key) {
4479 GENL_SET_ERR_MSG(info, "no key");
4480 return -EINVAL;
4481 }
4482
4483 if (info->attrs[NL80211_ATTR_MAC])
4484 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4485
4486 if (key.type == -1) {
4487 if (mac_addr)
4488 key.type = NL80211_KEYTYPE_PAIRWISE;
4489 else
4490 key.type = NL80211_KEYTYPE_GROUP;
4491 }
4492
4493
4494 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
4495 key.type != NL80211_KEYTYPE_GROUP) {
4496 GENL_SET_ERR_MSG(info, "key type not pairwise or group");
4497 return -EINVAL;
4498 }
4499
4500 if (key.type == NL80211_KEYTYPE_GROUP &&
4501 info->attrs[NL80211_ATTR_VLAN_ID])
4502 key.p.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]);
4503
4504 if (!rdev->ops->add_key)
4505 return -EOPNOTSUPP;
4506
4507 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
4508 key.type == NL80211_KEYTYPE_PAIRWISE,
4509 mac_addr)) {
4510 GENL_SET_ERR_MSG(info, "key setting validation failed");
4511 return -EINVAL;
4512 }
4513
4514 wdev_lock(dev->ieee80211_ptr);
4515 err = nl80211_key_allowed(dev->ieee80211_ptr);
4516 if (err)
4517 GENL_SET_ERR_MSG(info, "key not allowed");
4518 if (!err) {
4519 err = rdev_add_key(rdev, dev, key.idx,
4520 key.type == NL80211_KEYTYPE_PAIRWISE,
4521 mac_addr, &key.p);
4522 if (err)
4523 GENL_SET_ERR_MSG(info, "key addition failed");
4524 }
4525 wdev_unlock(dev->ieee80211_ptr);
4526
4527 return err;
4528}
4529
4530static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
4531{
4532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4533 int err;
4534 struct net_device *dev = info->user_ptr[1];
4535 u8 *mac_addr = NULL;
4536 struct key_parse key;
4537
4538 err = nl80211_parse_key(info, &key);
4539 if (err)
4540 return err;
4541
4542 if (info->attrs[NL80211_ATTR_MAC])
4543 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4544
4545 if (key.type == -1) {
4546 if (mac_addr)
4547 key.type = NL80211_KEYTYPE_PAIRWISE;
4548 else
4549 key.type = NL80211_KEYTYPE_GROUP;
4550 }
4551
4552
4553 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
4554 key.type != NL80211_KEYTYPE_GROUP)
4555 return -EINVAL;
4556
4557 if (!cfg80211_valid_key_idx(rdev, key.idx,
4558 key.type == NL80211_KEYTYPE_PAIRWISE))
4559 return -EINVAL;
4560
4561 if (!rdev->ops->del_key)
4562 return -EOPNOTSUPP;
4563
4564 wdev_lock(dev->ieee80211_ptr);
4565 err = nl80211_key_allowed(dev->ieee80211_ptr);
4566
4567 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
4568 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
4569 err = -ENOENT;
4570
4571 if (!err)
4572 err = rdev_del_key(rdev, dev, key.idx,
4573 key.type == NL80211_KEYTYPE_PAIRWISE,
4574 mac_addr);
4575
4576#ifdef CONFIG_CFG80211_WEXT
4577 if (!err) {
4578 if (key.idx == dev->ieee80211_ptr->wext.default_key)
4579 dev->ieee80211_ptr->wext.default_key = -1;
4580 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
4581 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
4582 }
4583#endif
4584 wdev_unlock(dev->ieee80211_ptr);
4585
4586 return err;
4587}
4588
4589
4590static int validate_acl_mac_addrs(struct nlattr *nl_attr)
4591{
4592 struct nlattr *attr;
4593 int n_entries = 0, tmp;
4594
4595 nla_for_each_nested(attr, nl_attr, tmp) {
4596 if (nla_len(attr) != ETH_ALEN)
4597 return -EINVAL;
4598
4599 n_entries++;
4600 }
4601
4602 return n_entries;
4603}
4604
4605
4606
4607
4608
4609
4610static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
4611 struct genl_info *info)
4612{
4613 enum nl80211_acl_policy acl_policy;
4614 struct nlattr *attr;
4615 struct cfg80211_acl_data *acl;
4616 int i = 0, n_entries, tmp;
4617
4618 if (!wiphy->max_acl_mac_addrs)
4619 return ERR_PTR(-EOPNOTSUPP);
4620
4621 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
4622 return ERR_PTR(-EINVAL);
4623
4624 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
4625 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
4626 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
4627 return ERR_PTR(-EINVAL);
4628
4629 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
4630 return ERR_PTR(-EINVAL);
4631
4632 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
4633 if (n_entries < 0)
4634 return ERR_PTR(n_entries);
4635
4636 if (n_entries > wiphy->max_acl_mac_addrs)
4637 return ERR_PTR(-ENOTSUPP);
4638
4639 acl = kzalloc(struct_size(acl, mac_addrs, n_entries), GFP_KERNEL);
4640 if (!acl)
4641 return ERR_PTR(-ENOMEM);
4642
4643 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
4644 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
4645 i++;
4646 }
4647
4648 acl->n_acl_entries = n_entries;
4649 acl->acl_policy = acl_policy;
4650
4651 return acl;
4652}
4653
4654static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
4655{
4656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4657 struct net_device *dev = info->user_ptr[1];
4658 struct cfg80211_acl_data *acl;
4659 int err;
4660
4661 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4662 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4663 return -EOPNOTSUPP;
4664
4665 if (!dev->ieee80211_ptr->beacon_interval)
4666 return -EINVAL;
4667
4668 acl = parse_acl_data(&rdev->wiphy, info);
4669 if (IS_ERR(acl))
4670 return PTR_ERR(acl);
4671
4672 err = rdev_set_mac_acl(rdev, dev, acl);
4673
4674 kfree(acl);
4675
4676 return err;
4677}
4678
4679static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4680 u8 *rates, u8 rates_len)
4681{
4682 u8 i;
4683 u32 mask = 0;
4684
4685 for (i = 0; i < rates_len; i++) {
4686 int rate = (rates[i] & 0x7f) * 5;
4687 int ridx;
4688
4689 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4690 struct ieee80211_rate *srate =
4691 &sband->bitrates[ridx];
4692 if (rate == srate->bitrate) {
4693 mask |= 1 << ridx;
4694 break;
4695 }
4696 }
4697 if (ridx == sband->n_bitrates)
4698 return 0;
4699 }
4700
4701 return mask;
4702}
4703
4704static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
4705 u8 *rates, u8 rates_len,
4706 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
4707{
4708 u8 i;
4709
4710 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
4711
4712 for (i = 0; i < rates_len; i++) {
4713 int ridx, rbit;
4714
4715 ridx = rates[i] / 8;
4716 rbit = BIT(rates[i] % 8);
4717
4718
4719 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
4720 return false;
4721
4722
4723 ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
4724 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
4725 mcs[ridx] |= rbit;
4726 else
4727 return false;
4728 }
4729
4730 return true;
4731}
4732
4733static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
4734{
4735 u16 mcs_mask = 0;
4736
4737 switch (vht_mcs_map) {
4738 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
4739 break;
4740 case IEEE80211_VHT_MCS_SUPPORT_0_7:
4741 mcs_mask = 0x00FF;
4742 break;
4743 case IEEE80211_VHT_MCS_SUPPORT_0_8:
4744 mcs_mask = 0x01FF;
4745 break;
4746 case IEEE80211_VHT_MCS_SUPPORT_0_9:
4747 mcs_mask = 0x03FF;
4748 break;
4749 default:
4750 break;
4751 }
4752
4753 return mcs_mask;
4754}
4755
4756static void vht_build_mcs_mask(u16 vht_mcs_map,
4757 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
4758{
4759 u8 nss;
4760
4761 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
4762 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
4763 vht_mcs_map >>= 2;
4764 }
4765}
4766
4767static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
4768 struct nl80211_txrate_vht *txrate,
4769 u16 mcs[NL80211_VHT_NSS_MAX])
4770{
4771 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
4772 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
4773 u8 i;
4774
4775 if (!sband->vht_cap.vht_supported)
4776 return false;
4777
4778 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
4779
4780
4781 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
4782
4783 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
4784 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
4785 mcs[i] = txrate->mcs[i];
4786 else
4787 return false;
4788 }
4789
4790 return true;
4791}
4792
4793static u16 he_mcs_map_to_mcs_mask(u8 he_mcs_map)
4794{
4795 switch (he_mcs_map) {
4796 case IEEE80211_HE_MCS_NOT_SUPPORTED:
4797 return 0;
4798 case IEEE80211_HE_MCS_SUPPORT_0_7:
4799 return 0x00FF;
4800 case IEEE80211_HE_MCS_SUPPORT_0_9:
4801 return 0x03FF;
4802 case IEEE80211_HE_MCS_SUPPORT_0_11:
4803 return 0xFFF;
4804 default:
4805 break;
4806 }
4807 return 0;
4808}
4809
4810static void he_build_mcs_mask(u16 he_mcs_map,
4811 u16 he_mcs_mask[NL80211_HE_NSS_MAX])
4812{
4813 u8 nss;
4814
4815 for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++) {
4816 he_mcs_mask[nss] = he_mcs_map_to_mcs_mask(he_mcs_map & 0x03);
4817 he_mcs_map >>= 2;
4818 }
4819}
4820
4821static u16 he_get_txmcsmap(struct genl_info *info,
4822 const struct ieee80211_sta_he_cap *he_cap)
4823{
4824 struct net_device *dev = info->user_ptr[1];
4825 struct wireless_dev *wdev = dev->ieee80211_ptr;
4826 __le16 tx_mcs;
4827
4828 switch (wdev->chandef.width) {
4829 case NL80211_CHAN_WIDTH_80P80:
4830 tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_80p80;
4831 break;
4832 case NL80211_CHAN_WIDTH_160:
4833 tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_160;
4834 break;
4835 default:
4836 tx_mcs = he_cap->he_mcs_nss_supp.tx_mcs_80;
4837 break;
4838 }
4839 return le16_to_cpu(tx_mcs);
4840}
4841
4842static bool he_set_mcs_mask(struct genl_info *info,
4843 struct wireless_dev *wdev,
4844 struct ieee80211_supported_band *sband,
4845 struct nl80211_txrate_he *txrate,
4846 u16 mcs[NL80211_HE_NSS_MAX])
4847{
4848 const struct ieee80211_sta_he_cap *he_cap;
4849 u16 tx_mcs_mask[NL80211_HE_NSS_MAX] = {};
4850 u16 tx_mcs_map = 0;
4851 u8 i;
4852
4853 he_cap = ieee80211_get_he_iftype_cap(sband, wdev->iftype);
4854 if (!he_cap)
4855 return false;
4856
4857 memset(mcs, 0, sizeof(u16) * NL80211_HE_NSS_MAX);
4858
4859 tx_mcs_map = he_get_txmcsmap(info, he_cap);
4860
4861
4862 he_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
4863
4864 for (i = 0; i < NL80211_HE_NSS_MAX; i++) {
4865 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
4866 mcs[i] = txrate->mcs[i];
4867 else
4868 return false;
4869 }
4870
4871 return true;
4872}
4873
4874static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
4875 struct nlattr *attrs[],
4876 enum nl80211_attrs attr,
4877 struct cfg80211_bitrate_mask *mask,
4878 struct net_device *dev,
4879 bool default_all_enabled)
4880{
4881 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4883 struct wireless_dev *wdev = dev->ieee80211_ptr;
4884 int rem, i;
4885 struct nlattr *tx_rates;
4886 struct ieee80211_supported_band *sband;
4887 u16 vht_tx_mcs_map, he_tx_mcs_map;
4888
4889 memset(mask, 0, sizeof(*mask));
4890
4891 for (i = 0; i < NUM_NL80211_BANDS; i++) {
4892 const struct ieee80211_sta_he_cap *he_cap;
4893
4894 if (!default_all_enabled)
4895 break;
4896
4897 sband = rdev->wiphy.bands[i];
4898
4899 if (!sband)
4900 continue;
4901
4902 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
4903 memcpy(mask->control[i].ht_mcs,
4904 sband->ht_cap.mcs.rx_mask,
4905 sizeof(mask->control[i].ht_mcs));
4906
4907 if (sband->vht_cap.vht_supported) {
4908 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
4909 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
4910 }
4911
4912 he_cap = ieee80211_get_he_iftype_cap(sband, wdev->iftype);
4913 if (!he_cap)
4914 continue;
4915
4916 he_tx_mcs_map = he_get_txmcsmap(info, he_cap);
4917 he_build_mcs_mask(he_tx_mcs_map, mask->control[i].he_mcs);
4918
4919 mask->control[i].he_gi = 0xFF;
4920 mask->control[i].he_ltf = 0xFF;
4921 }
4922
4923
4924 if (!attrs[attr])
4925 goto out;
4926
4927
4928
4929
4930 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
4931 nla_for_each_nested(tx_rates, attrs[attr], rem) {
4932 enum nl80211_band band = nla_type(tx_rates);
4933 int err;
4934
4935 if (band < 0 || band >= NUM_NL80211_BANDS)
4936 return -EINVAL;
4937 sband = rdev->wiphy.bands[band];
4938 if (sband == NULL)
4939 return -EINVAL;
4940 err = nla_parse_nested_deprecated(tb, NL80211_TXRATE_MAX,
4941 tx_rates,
4942 nl80211_txattr_policy,
4943 info->extack);
4944 if (err)
4945 return err;
4946 if (tb[NL80211_TXRATE_LEGACY]) {
4947 mask->control[band].legacy = rateset_to_mask(
4948 sband,
4949 nla_data(tb[NL80211_TXRATE_LEGACY]),
4950 nla_len(tb[NL80211_TXRATE_LEGACY]));
4951 if ((mask->control[band].legacy == 0) &&
4952 nla_len(tb[NL80211_TXRATE_LEGACY]))
4953 return -EINVAL;
4954 }
4955 if (tb[NL80211_TXRATE_HT]) {
4956 if (!ht_rateset_to_mask(
4957 sband,
4958 nla_data(tb[NL80211_TXRATE_HT]),
4959 nla_len(tb[NL80211_TXRATE_HT]),
4960 mask->control[band].ht_mcs))
4961 return -EINVAL;
4962 }
4963
4964 if (tb[NL80211_TXRATE_VHT]) {
4965 if (!vht_set_mcs_mask(
4966 sband,
4967 nla_data(tb[NL80211_TXRATE_VHT]),
4968 mask->control[band].vht_mcs))
4969 return -EINVAL;
4970 }
4971
4972 if (tb[NL80211_TXRATE_GI]) {
4973 mask->control[band].gi =
4974 nla_get_u8(tb[NL80211_TXRATE_GI]);
4975 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
4976 return -EINVAL;
4977 }
4978 if (tb[NL80211_TXRATE_HE] &&
4979 !he_set_mcs_mask(info, wdev, sband,
4980 nla_data(tb[NL80211_TXRATE_HE]),
4981 mask->control[band].he_mcs))
4982 return -EINVAL;
4983
4984 if (tb[NL80211_TXRATE_HE_GI])
4985 mask->control[band].he_gi =
4986 nla_get_u8(tb[NL80211_TXRATE_HE_GI]);
4987 if (tb[NL80211_TXRATE_HE_LTF])
4988 mask->control[band].he_ltf =
4989 nla_get_u8(tb[NL80211_TXRATE_HE_LTF]);
4990
4991 if (mask->control[band].legacy == 0) {
4992
4993
4994
4995 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
4996 rdev->wiphy.bands[band]->vht_cap.vht_supported ||
4997 ieee80211_get_he_iftype_cap(sband, wdev->iftype)))
4998 return -EINVAL;
4999
5000 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5001 if (mask->control[band].ht_mcs[i])
5002 goto out;
5003
5004 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
5005 if (mask->control[band].vht_mcs[i])
5006 goto out;
5007
5008 for (i = 0; i < NL80211_HE_NSS_MAX; i++)
5009 if (mask->control[band].he_mcs[i])
5010 goto out;
5011
5012
5013 return -EINVAL;
5014 }
5015 }
5016
5017out:
5018 return 0;
5019}
5020
5021static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
5022 enum nl80211_band band,
5023 struct cfg80211_bitrate_mask *beacon_rate)
5024{
5025 u32 count_ht, count_vht, count_he, i;
5026 u32 rate = beacon_rate->control[band].legacy;
5027
5028
5029 if (hweight32(rate) > 1)
5030 return -EINVAL;
5031
5032 count_ht = 0;
5033 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
5034 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
5035 return -EINVAL;
5036 } else if (beacon_rate->control[band].ht_mcs[i]) {
5037 count_ht++;
5038 if (count_ht > 1)
5039 return -EINVAL;
5040 }
5041 if (count_ht && rate)
5042 return -EINVAL;
5043 }
5044
5045 count_vht = 0;
5046 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
5047 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
5048 return -EINVAL;
5049 } else if (beacon_rate->control[band].vht_mcs[i]) {
5050 count_vht++;
5051 if (count_vht > 1)
5052 return -EINVAL;
5053 }
5054 if (count_vht && rate)
5055 return -EINVAL;
5056 }
5057
5058 count_he = 0;
5059 for (i = 0; i < NL80211_HE_NSS_MAX; i++) {
5060 if (hweight16(beacon_rate->control[band].he_mcs[i]) > 1) {
5061 return -EINVAL;
5062 } else if (beacon_rate->control[band].he_mcs[i]) {
5063 count_he++;
5064 if (count_he > 1)
5065 return -EINVAL;
5066 }
5067 if (count_he && rate)
5068 return -EINVAL;
5069 }
5070
5071 if ((count_ht && count_vht && count_he) ||
5072 (!rate && !count_ht && !count_vht && !count_he))
5073 return -EINVAL;
5074
5075 if (rate &&
5076 !wiphy_ext_feature_isset(&rdev->wiphy,
5077 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
5078 return -EINVAL;
5079 if (count_ht &&
5080 !wiphy_ext_feature_isset(&rdev->wiphy,
5081 NL80211_EXT_FEATURE_BEACON_RATE_HT))
5082 return -EINVAL;
5083 if (count_vht &&
5084 !wiphy_ext_feature_isset(&rdev->wiphy,
5085 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
5086 return -EINVAL;
5087 if (count_he &&
5088 !wiphy_ext_feature_isset(&rdev->wiphy,
5089 NL80211_EXT_FEATURE_BEACON_RATE_HE))
5090 return -EINVAL;
5091
5092 return 0;
5093}
5094
5095static int nl80211_parse_mbssid_config(struct wiphy *wiphy,
5096 struct net_device *dev,
5097 struct nlattr *attrs,
5098 struct cfg80211_mbssid_config *config,
5099 u8 num_elems)
5100{
5101 struct nlattr *tb[NL80211_MBSSID_CONFIG_ATTR_MAX + 1];
5102
5103 if (!wiphy->mbssid_max_interfaces)
5104 return -EOPNOTSUPP;
5105
5106 if (nla_parse_nested(tb, NL80211_MBSSID_CONFIG_ATTR_MAX, attrs, NULL,
5107 NULL) ||
5108 !tb[NL80211_MBSSID_CONFIG_ATTR_INDEX])
5109 return -EINVAL;
5110
5111 config->ema = nla_get_flag(tb[NL80211_MBSSID_CONFIG_ATTR_EMA]);
5112 if (config->ema) {
5113 if (!wiphy->ema_max_profile_periodicity)
5114 return -EOPNOTSUPP;
5115
5116 if (num_elems > wiphy->ema_max_profile_periodicity)
5117 return -EINVAL;
5118 }
5119
5120 config->index = nla_get_u8(tb[NL80211_MBSSID_CONFIG_ATTR_INDEX]);
5121 if (config->index >= wiphy->mbssid_max_interfaces ||
5122 (!config->index && !num_elems))
5123 return -EINVAL;
5124
5125 if (tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]) {
5126 u32 tx_ifindex =
5127 nla_get_u32(tb[NL80211_MBSSID_CONFIG_ATTR_TX_IFINDEX]);
5128
5129 if ((!config->index && tx_ifindex != dev->ifindex) ||
5130 (config->index && tx_ifindex == dev->ifindex))
5131 return -EINVAL;
5132
5133 if (tx_ifindex != dev->ifindex) {
5134 struct net_device *tx_netdev =
5135 dev_get_by_index(wiphy_net(wiphy), tx_ifindex);
5136
5137 if (!tx_netdev || !tx_netdev->ieee80211_ptr ||
5138 tx_netdev->ieee80211_ptr->wiphy != wiphy ||
5139 tx_netdev->ieee80211_ptr->iftype !=
5140 NL80211_IFTYPE_AP) {
5141 dev_put(tx_netdev);
5142 return -EINVAL;
5143 }
5144
5145 config->tx_wdev = tx_netdev->ieee80211_ptr;
5146 } else {
5147 config->tx_wdev = dev->ieee80211_ptr;
5148 }
5149 } else if (!config->index) {
5150 config->tx_wdev = dev->ieee80211_ptr;
5151 } else {
5152 return -EINVAL;
5153 }
5154
5155 return 0;
5156}
5157
5158static struct cfg80211_mbssid_elems *
5159nl80211_parse_mbssid_elems(struct wiphy *wiphy, struct nlattr *attrs)
5160{
5161 struct nlattr *nl_elems;
5162 struct cfg80211_mbssid_elems *elems;
5163 int rem_elems;
5164 u8 i = 0, num_elems = 0;
5165
5166 if (!wiphy->mbssid_max_interfaces)
5167 return ERR_PTR(-EINVAL);
5168
5169 nla_for_each_nested(nl_elems, attrs, rem_elems)
5170 num_elems++;
5171
5172 elems = kzalloc(struct_size(elems, elem, num_elems), GFP_KERNEL);
5173 if (!elems)
5174 return ERR_PTR(-ENOMEM);
5175
5176 nla_for_each_nested(nl_elems, attrs, rem_elems) {
5177 elems->elem[i].data = nla_data(nl_elems);
5178 elems->elem[i].len = nla_len(nl_elems);
5179 i++;
5180 }
5181 elems->cnt = num_elems;
5182 return elems;
5183}
5184
5185static int nl80211_parse_he_bss_color(struct nlattr *attrs,
5186 struct cfg80211_he_bss_color *he_bss_color)
5187{
5188 struct nlattr *tb[NL80211_HE_BSS_COLOR_ATTR_MAX + 1];
5189 int err;
5190
5191 err = nla_parse_nested(tb, NL80211_HE_BSS_COLOR_ATTR_MAX, attrs,
5192 he_bss_color_policy, NULL);
5193 if (err)
5194 return err;
5195
5196 if (!tb[NL80211_HE_BSS_COLOR_ATTR_COLOR])
5197 return -EINVAL;
5198
5199 he_bss_color->color =
5200 nla_get_u8(tb[NL80211_HE_BSS_COLOR_ATTR_COLOR]);
5201 he_bss_color->enabled =
5202 !nla_get_flag(tb[NL80211_HE_BSS_COLOR_ATTR_DISABLED]);
5203 he_bss_color->partial =
5204 nla_get_flag(tb[NL80211_HE_BSS_COLOR_ATTR_PARTIAL]);
5205
5206 return 0;
5207}
5208
5209static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev,
5210 struct nlattr *attrs[],
5211 struct cfg80211_beacon_data *bcn)
5212{
5213 bool haveinfo = false;
5214 int err;
5215
5216 memset(bcn, 0, sizeof(*bcn));
5217
5218 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
5219 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
5220 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
5221 if (!bcn->head_len)
5222 return -EINVAL;
5223 haveinfo = true;
5224 }
5225
5226 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
5227 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
5228 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
5229 haveinfo = true;
5230 }
5231
5232 if (!haveinfo)
5233 return -EINVAL;
5234
5235 if (attrs[NL80211_ATTR_IE]) {
5236 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
5237 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
5238 }
5239
5240 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
5241 bcn->proberesp_ies =
5242 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
5243 bcn->proberesp_ies_len =
5244 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
5245 }
5246
5247 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
5248 bcn->assocresp_ies =
5249 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
5250 bcn->assocresp_ies_len =
5251 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
5252 }
5253
5254 if (attrs[NL80211_ATTR_PROBE_RESP]) {
5255 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
5256 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
5257 }
5258
5259 if (attrs[NL80211_ATTR_FTM_RESPONDER]) {
5260 struct nlattr *tb[NL80211_FTM_RESP_ATTR_MAX + 1];
5261
5262 err = nla_parse_nested_deprecated(tb,
5263 NL80211_FTM_RESP_ATTR_MAX,
5264 attrs[NL80211_ATTR_FTM_RESPONDER],
5265 NULL, NULL);
5266 if (err)
5267 return err;
5268
5269 if (tb[NL80211_FTM_RESP_ATTR_ENABLED] &&
5270 wiphy_ext_feature_isset(&rdev->wiphy,
5271 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER))
5272 bcn->ftm_responder = 1;
5273 else
5274 return -EOPNOTSUPP;
5275
5276 if (tb[NL80211_FTM_RESP_ATTR_LCI]) {
5277 bcn->lci = nla_data(tb[NL80211_FTM_RESP_ATTR_LCI]);
5278 bcn->lci_len = nla_len(tb[NL80211_FTM_RESP_ATTR_LCI]);
5279 }
5280
5281 if (tb[NL80211_FTM_RESP_ATTR_CIVICLOC]) {
5282 bcn->civicloc = nla_data(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]);
5283 bcn->civicloc_len = nla_len(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]);
5284 }
5285 } else {
5286 bcn->ftm_responder = -1;
5287 }
5288
5289 if (attrs[NL80211_ATTR_HE_BSS_COLOR]) {
5290 err = nl80211_parse_he_bss_color(attrs[NL80211_ATTR_HE_BSS_COLOR],
5291 &bcn->he_bss_color);
5292 if (err)
5293 return err;
5294 bcn->he_bss_color_valid = true;
5295 }
5296
5297 if (attrs[NL80211_ATTR_MBSSID_ELEMS]) {
5298 struct cfg80211_mbssid_elems *mbssid =
5299 nl80211_parse_mbssid_elems(&rdev->wiphy,
5300 attrs[NL80211_ATTR_MBSSID_ELEMS]);
5301
5302 if (IS_ERR(mbssid))
5303 return PTR_ERR(mbssid);
5304
5305 bcn->mbssid_ies = mbssid;
5306 }
5307
5308 return 0;
5309}
5310
5311static int nl80211_parse_he_obss_pd(struct nlattr *attrs,
5312 struct ieee80211_he_obss_pd *he_obss_pd)
5313{
5314 struct nlattr *tb[NL80211_HE_OBSS_PD_ATTR_MAX + 1];
5315 int err;
5316
5317 err = nla_parse_nested(tb, NL80211_HE_OBSS_PD_ATTR_MAX, attrs,
5318 he_obss_pd_policy, NULL);
5319 if (err)
5320 return err;
5321
5322 if (!tb[NL80211_HE_OBSS_PD_ATTR_SR_CTRL])
5323 return -EINVAL;
5324
5325 he_obss_pd->sr_ctrl = nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_SR_CTRL]);
5326
5327 if (tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET])
5328 he_obss_pd->min_offset =
5329 nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET]);
5330 if (tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET])
5331 he_obss_pd->max_offset =
5332 nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET]);
5333 if (tb[NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET])
5334 he_obss_pd->non_srg_max_offset =
5335 nla_get_u8(tb[NL80211_HE_OBSS_PD_ATTR_NON_SRG_MAX_OFFSET]);
5336
5337 if (he_obss_pd->min_offset > he_obss_pd->max_offset)
5338 return -EINVAL;
5339
5340 if (tb[NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP])
5341 memcpy(he_obss_pd->bss_color_bitmap,
5342 nla_data(tb[NL80211_HE_OBSS_PD_ATTR_BSS_COLOR_BITMAP]),
5343 sizeof(he_obss_pd->bss_color_bitmap));
5344
5345 if (tb[NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP])
5346 memcpy(he_obss_pd->partial_bssid_bitmap,
5347 nla_data(tb[NL80211_HE_OBSS_PD_ATTR_PARTIAL_BSSID_BITMAP]),
5348 sizeof(he_obss_pd->partial_bssid_bitmap));
5349
5350 he_obss_pd->enable = true;
5351
5352 return 0;
5353}
5354
5355static int nl80211_parse_fils_discovery(struct cfg80211_registered_device *rdev,
5356 struct nlattr *attrs,
5357 struct cfg80211_ap_settings *params)
5358{
5359 struct nlattr *tb[NL80211_FILS_DISCOVERY_ATTR_MAX + 1];
5360 int ret;
5361 struct cfg80211_fils_discovery *fd = ¶ms->fils_discovery;
5362
5363 if (!wiphy_ext_feature_isset(&rdev->wiphy,
5364 NL80211_EXT_FEATURE_FILS_DISCOVERY))
5365 return -EINVAL;
5366
5367 ret = nla_parse_nested(tb, NL80211_FILS_DISCOVERY_ATTR_MAX, attrs,
5368 NULL, NULL);
5369 if (ret)
5370 return ret;
5371
5372 if (!tb[NL80211_FILS_DISCOVERY_ATTR_INT_MIN] ||
5373 !tb[NL80211_FILS_DISCOVERY_ATTR_INT_MAX] ||
5374 !tb[NL80211_FILS_DISCOVERY_ATTR_TMPL])
5375 return -EINVAL;
5376
5377 fd->tmpl_len = nla_len(tb[NL80211_FILS_DISCOVERY_ATTR_TMPL]);
5378 fd->tmpl = nla_data(tb[NL80211_FILS_DISCOVERY_ATTR_TMPL]);
5379 fd->min_interval = nla_get_u32(tb[NL80211_FILS_DISCOVERY_ATTR_INT_MIN]);
5380 fd->max_interval = nla_get_u32(tb[NL80211_FILS_DISCOVERY_ATTR_INT_MAX]);
5381
5382 return 0;
5383}
5384
5385static int
5386nl80211_parse_unsol_bcast_probe_resp(struct cfg80211_registered_device *rdev,
5387 struct nlattr *attrs,
5388 struct cfg80211_ap_settings *params)
5389{
5390 struct nlattr *tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX + 1];
5391 int ret;
5392 struct cfg80211_unsol_bcast_probe_resp *presp =
5393 ¶ms->unsol_bcast_probe_resp;
5394
5395 if (!wiphy_ext_feature_isset(&rdev->wiphy,
5396 NL80211_EXT_FEATURE_UNSOL_BCAST_PROBE_RESP))
5397 return -EINVAL;
5398
5399 ret = nla_parse_nested(tb, NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_MAX,
5400 attrs, NULL, NULL);
5401 if (ret)
5402 return ret;
5403
5404 if (!tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT] ||
5405 !tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL])
5406 return -EINVAL;
5407
5408 presp->tmpl = nla_data(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL]);
5409 presp->tmpl_len = nla_len(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL]);
5410 presp->interval = nla_get_u32(tb[NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT]);
5411 return 0;
5412}
5413
5414static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
5415 const struct element *rates)
5416{
5417 int i;
5418
5419 if (!rates)
5420 return;
5421
5422 for (i = 0; i < rates->datalen; i++) {
5423 if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
5424 params->ht_required = true;
5425 if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
5426 params->vht_required = true;
5427 if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_HE_PHY)
5428 params->he_required = true;
5429 if (rates->data[i] == BSS_MEMBERSHIP_SELECTOR_SAE_H2E)
5430 params->sae_h2e_required = true;
5431 }
5432}
5433
5434
5435
5436
5437
5438
5439static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
5440{
5441 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
5442 size_t ies_len = bcn->tail_len;
5443 const u8 *ies = bcn->tail;
5444 const struct element *rates;
5445 const struct element *cap;
5446
5447 rates = cfg80211_find_elem(WLAN_EID_SUPP_RATES, ies, ies_len);
5448 nl80211_check_ap_rate_selectors(params, rates);
5449
5450 rates = cfg80211_find_elem(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
5451 nl80211_check_ap_rate_selectors(params, rates);
5452
5453 cap = cfg80211_find_elem(WLAN_EID_HT_CAPABILITY, ies, ies_len);
5454 if (cap && cap->datalen >= sizeof(*params->ht_cap))
5455 params->ht_cap = (void *)cap->data;
5456 cap = cfg80211_find_elem(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
5457 if (cap && cap->datalen >= sizeof(*params->vht_cap))
5458 params->vht_cap = (void *)cap->data;
5459 cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, ies, ies_len);
5460 if (cap && cap->datalen >= sizeof(*params->he_cap) + 1)
5461 params->he_cap = (void *)(cap->data + 1);
5462 cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION, ies, ies_len);
5463 if (cap && cap->datalen >= sizeof(*params->he_oper) + 1)
5464 params->he_oper = (void *)(cap->data + 1);
5465}
5466
5467static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
5468 struct cfg80211_ap_settings *params)
5469{
5470 struct wireless_dev *wdev;
5471 bool ret = false;
5472
5473 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
5474 if (wdev->iftype != NL80211_IFTYPE_AP &&
5475 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5476 continue;
5477
5478 if (!wdev->preset_chandef.chan)
5479 continue;
5480
5481 params->chandef = wdev->preset_chandef;
5482 ret = true;
5483 break;
5484 }
5485
5486 return ret;
5487}
5488
5489static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
5490 enum nl80211_auth_type auth_type,
5491 enum nl80211_commands cmd)
5492{
5493 if (auth_type > NL80211_AUTHTYPE_MAX)
5494 return false;
5495
5496 switch (cmd) {
5497 case NL80211_CMD_AUTHENTICATE:
5498 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
5499 auth_type == NL80211_AUTHTYPE_SAE)
5500 return false;
5501 if (!wiphy_ext_feature_isset(&rdev->wiphy,
5502 NL80211_EXT_FEATURE_FILS_STA) &&
5503 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
5504 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
5505 auth_type == NL80211_AUTHTYPE_FILS_PK))
5506 return false;
5507 return true;
5508 case NL80211_CMD_CONNECT:
5509 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
5510 !wiphy_ext_feature_isset(&rdev->wiphy,
5511 NL80211_EXT_FEATURE_SAE_OFFLOAD) &&
5512 auth_type == NL80211_AUTHTYPE_SAE)
5513 return false;
5514
5515
5516 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
5517 auth_type == NL80211_AUTHTYPE_FILS_PK)
5518 return false;
5519 if (!wiphy_ext_feature_isset(
5520 &rdev->wiphy,
5521 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
5522 auth_type == NL80211_AUTHTYPE_FILS_SK)
5523 return false;
5524 return true;
5525 case NL80211_CMD_START_AP:
5526 if (!wiphy_ext_feature_isset(&rdev->wiphy,
5527 NL80211_EXT_FEATURE_SAE_OFFLOAD_AP) &&
5528 auth_type == NL80211_AUTHTYPE_SAE)
5529 return false;
5530
5531 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
5532 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
5533 auth_type == NL80211_AUTHTYPE_FILS_PK)
5534 return false;
5535 return true;
5536 default:
5537 return false;
5538 }
5539}
5540
5541static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
5542{
5543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5544 struct net_device *dev = info->user_ptr[1];
5545 struct wireless_dev *wdev = dev->ieee80211_ptr;
5546 struct cfg80211_ap_settings *params;
5547 int err;
5548
5549 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5550 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5551 return -EOPNOTSUPP;
5552
5553 if (!rdev->ops->start_ap)
5554 return -EOPNOTSUPP;
5555
5556 if (wdev->beacon_interval)
5557 return -EALREADY;
5558
5559
5560 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
5561 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
5562 !info->attrs[NL80211_ATTR_BEACON_HEAD])
5563 return -EINVAL;
5564
5565 params = kzalloc(sizeof(*params), GFP_KERNEL);
5566 if (!params)
5567 return -ENOMEM;
5568
5569 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms->beacon);
5570 if (err)
5571 goto out;
5572
5573 params->beacon_interval =
5574 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5575 params->dtim_period =
5576 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
5577
5578 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
5579 params->beacon_interval);
5580 if (err)
5581 goto out;
5582
5583
5584
5585
5586
5587
5588
5589
5590 if (info->attrs[NL80211_ATTR_SSID]) {
5591 params->ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5592 params->ssid_len =
5593 nla_len(info->attrs[NL80211_ATTR_SSID]);
5594 if (params->ssid_len == 0) {
5595 err = -EINVAL;
5596 goto out;
5597 }
5598 }
5599
5600 if (info->attrs[NL80211_ATTR_HIDDEN_SSID])
5601 params->hidden_ssid = nla_get_u32(
5602 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
5603
5604 params->privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5605
5606 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5607 params->auth_type = nla_get_u32(
5608 info->attrs[NL80211_ATTR_AUTH_TYPE]);
5609 if (!nl80211_valid_auth_type(rdev, params->auth_type,
5610 NL80211_CMD_START_AP)) {
5611 err = -EINVAL;
5612 goto out;
5613 }
5614 } else
5615 params->auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5616
5617 err = nl80211_crypto_settings(rdev, info, ¶ms->crypto,
5618 NL80211_MAX_NR_CIPHER_SUITES);
5619 if (err)
5620 goto out;
5621
5622 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
5623 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) {
5624 err = -EOPNOTSUPP;
5625 goto out;
5626 }
5627 params->inactivity_timeout = nla_get_u16(
5628 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
5629 }
5630
5631 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5632 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
5633 err = -EINVAL;
5634 goto out;
5635 }
5636 params->p2p_ctwindow =
5637 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5638 if (params->p2p_ctwindow != 0 &&
5639 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) {
5640 err = -EINVAL;
5641 goto out;
5642 }
5643 }
5644
5645 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5646 u8 tmp;
5647
5648 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
5649 err = -EINVAL;
5650 goto out;
5651 }
5652 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5653 params->p2p_opp_ps = tmp;
5654 if (params->p2p_opp_ps != 0 &&
5655 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) {
5656 err = -EINVAL;
5657 goto out;
5658 }
5659 }
5660
5661 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5662 err = nl80211_parse_chandef(rdev, info, ¶ms->chandef);
5663 if (err)
5664 goto out;
5665 } else if (wdev->preset_chandef.chan) {
5666 params->chandef = wdev->preset_chandef;
5667 } else if (!nl80211_get_ap_channel(rdev, params)) {
5668 err = -EINVAL;
5669 goto out;
5670 }
5671
5672 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms->chandef,
5673 wdev->iftype)) {
5674 err = -EINVAL;
5675 goto out;
5676 }
5677
5678 if (info->attrs[NL80211_ATTR_TX_RATES]) {
5679 err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
5680 NL80211_ATTR_TX_RATES,
5681 ¶ms->beacon_rate,
5682 dev, false);
5683 if (err)
5684 goto out;
5685
5686 err = validate_beacon_tx_rate(rdev, params->chandef.chan->band,
5687 ¶ms->beacon_rate);
5688 if (err)
5689 goto out;
5690 }
5691
5692 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
5693 params->smps_mode =
5694 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
5695 switch (params->smps_mode) {
5696 case NL80211_SMPS_OFF:
5697 break;
5698 case NL80211_SMPS_STATIC:
5699 if (!(rdev->wiphy.features &
5700 NL80211_FEATURE_STATIC_SMPS)) {
5701 err = -EINVAL;
5702 goto out;
5703 }
5704 break;
5705 case NL80211_SMPS_DYNAMIC:
5706 if (!(rdev->wiphy.features &
5707 NL80211_FEATURE_DYNAMIC_SMPS)) {
5708 err = -EINVAL;
5709 goto out;
5710 }
5711 break;
5712 default:
5713 err = -EINVAL;
5714 goto out;
5715 }
5716 } else {
5717 params->smps_mode = NL80211_SMPS_OFF;
5718 }
5719
5720 params->pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
5721 if (params->pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
5722 err = -EOPNOTSUPP;
5723 goto out;
5724 }
5725
5726 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
5727 params->acl = parse_acl_data(&rdev->wiphy, info);
5728 if (IS_ERR(params->acl)) {
5729 err = PTR_ERR(params->acl);
5730 params->acl = NULL;
5731 goto out;
5732 }
5733 }
5734
5735 params->twt_responder =
5736 nla_get_flag(info->attrs[NL80211_ATTR_TWT_RESPONDER]);
5737
5738 if (info->attrs[NL80211_ATTR_HE_OBSS_PD]) {
5739 err = nl80211_parse_he_obss_pd(
5740 info->attrs[NL80211_ATTR_HE_OBSS_PD],
5741 ¶ms->he_obss_pd);
5742 if (err)
5743 goto out;
5744 }
5745
5746 if (info->attrs[NL80211_ATTR_FILS_DISCOVERY]) {
5747 err = nl80211_parse_fils_discovery(rdev,
5748 info->attrs[NL80211_ATTR_FILS_DISCOVERY],
5749 params);
5750 if (err)
5751 goto out;
5752 }
5753
5754 if (info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP]) {
5755 err = nl80211_parse_unsol_bcast_probe_resp(
5756 rdev, info->attrs[NL80211_ATTR_UNSOL_BCAST_PROBE_RESP],
5757 params);
5758 if (err)
5759 goto out;
5760 }
5761
5762 if (info->attrs[NL80211_ATTR_MBSSID_CONFIG]) {
5763 err = nl80211_parse_mbssid_config(&rdev->wiphy, dev,
5764 info->attrs[NL80211_ATTR_MBSSID_CONFIG],
5765 ¶ms->mbssid_config,
5766 params->beacon.mbssid_ies ?
5767 params->beacon.mbssid_ies->cnt :
5768 0);
5769 if (err)
5770 goto out;
5771 }
5772
5773 nl80211_calculate_ap_params(params);
5774
5775 if (info->attrs[NL80211_ATTR_AP_SETTINGS_FLAGS])
5776 params->flags = nla_get_u32(
5777 info->attrs[NL80211_ATTR_AP_SETTINGS_FLAGS]);
5778 else if (info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])
5779 params->flags |= NL80211_AP_SETTINGS_EXTERNAL_AUTH_SUPPORT;
5780
5781 wdev_lock(wdev);
5782 err = rdev_start_ap(rdev, dev, params);
5783 if (!err) {
5784 wdev->preset_chandef = params->chandef;
5785 wdev->beacon_interval = params->beacon_interval;
5786 wdev->chandef = params->chandef;
5787 wdev->ssid_len = params->ssid_len;
5788 memcpy(wdev->ssid, params->ssid, wdev->ssid_len);
5789
5790 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
5791 wdev->conn_owner_nlportid = info->snd_portid;
5792 }
5793 wdev_unlock(wdev);
5794
5795out:
5796 kfree(params->acl);
5797 kfree(params->beacon.mbssid_ies);
5798 if (params->mbssid_config.tx_wdev &&
5799 params->mbssid_config.tx_wdev->netdev &&
5800 params->mbssid_config.tx_wdev->netdev != dev)
5801 dev_put(params->mbssid_config.tx_wdev->netdev);
5802 kfree(params);
5803
5804 return err;
5805}
5806
5807static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
5808{
5809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5810 struct net_device *dev = info->user_ptr[1];
5811 struct wireless_dev *wdev = dev->ieee80211_ptr;
5812 struct cfg80211_beacon_data params;
5813 int err;
5814
5815 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5816 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5817 return -EOPNOTSUPP;
5818
5819 if (!rdev->ops->change_beacon)
5820 return -EOPNOTSUPP;
5821
5822 if (!wdev->beacon_interval)
5823 return -EINVAL;
5824
5825 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms);
5826 if (err)
5827 goto out;
5828
5829 wdev_lock(wdev);
5830 err = rdev_change_beacon(rdev, dev, ¶ms);
5831 wdev_unlock(wdev);
5832
5833out:
5834 kfree(params.mbssid_ies);
5835 return err;
5836}
5837
5838static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
5839{
5840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5841 struct net_device *dev = info->user_ptr[1];
5842
5843 return cfg80211_stop_ap(rdev, dev, false);
5844}
5845
5846static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
5847 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
5848 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
5849 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
5850 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5851 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5852 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5853};
5854
5855static int parse_station_flags(struct genl_info *info,
5856 enum nl80211_iftype iftype,
5857 struct station_parameters *params)
5858{
5859 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
5860 struct nlattr *nla;
5861 int flag;
5862
5863
5864
5865
5866
5867 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
5868 if (nla) {
5869 struct nl80211_sta_flag_update *sta_flags;
5870
5871 sta_flags = nla_data(nla);
5872 params->sta_flags_mask = sta_flags->mask;
5873 params->sta_flags_set = sta_flags->set;
5874 params->sta_flags_set &= params->sta_flags_mask;
5875 if ((params->sta_flags_mask |
5876 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
5877 return -EINVAL;
5878 return 0;
5879 }
5880
5881
5882
5883 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5884 if (!nla)
5885 return 0;
5886
5887 if (nla_parse_nested_deprecated(flags, NL80211_STA_FLAG_MAX, nla, sta_flags_policy, info->extack))
5888 return -EINVAL;
5889
5890
5891
5892
5893
5894
5895
5896 switch (iftype) {
5897 case NL80211_IFTYPE_AP:
5898 case NL80211_IFTYPE_AP_VLAN:
5899 case NL80211_IFTYPE_P2P_GO:
5900 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
5901 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
5902 BIT(NL80211_STA_FLAG_WME) |
5903 BIT(NL80211_STA_FLAG_MFP);
5904 break;
5905 case NL80211_IFTYPE_P2P_CLIENT:
5906 case NL80211_IFTYPE_STATION:
5907 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
5908 BIT(NL80211_STA_FLAG_TDLS_PEER);
5909 break;
5910 case NL80211_IFTYPE_MESH_POINT:
5911 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5912 BIT(NL80211_STA_FLAG_MFP) |
5913 BIT(NL80211_STA_FLAG_AUTHORIZED);
5914 break;
5915 default:
5916 return -EINVAL;
5917 }
5918
5919 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
5920 if (flags[flag]) {
5921 params->sta_flags_set |= (1<<flag);
5922
5923
5924 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
5925 return -EINVAL;
5926 }
5927 }
5928
5929 return 0;
5930}
5931
5932bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, int attr)
5933{
5934 struct nlattr *rate;
5935 u32 bitrate;
5936 u16 bitrate_compat;
5937 enum nl80211_rate_info rate_flg;
5938
5939 rate = nla_nest_start_noflag(msg, attr);
5940 if (!rate)
5941 return false;
5942
5943
5944 bitrate = cfg80211_calculate_bitrate(info);
5945
5946 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
5947 if (bitrate > 0 &&
5948 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
5949 return false;
5950 if (bitrate_compat > 0 &&
5951 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
5952 return false;
5953
5954 switch (info->bw) {
5955 case RATE_INFO_BW_5:
5956 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
5957 break;
5958 case RATE_INFO_BW_10:
5959 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
5960 break;
5961 default:
5962 WARN_ON(1);
5963 fallthrough;
5964 case RATE_INFO_BW_20:
5965 rate_flg = 0;
5966 break;
5967 case RATE_INFO_BW_40:
5968 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
5969 break;
5970 case RATE_INFO_BW_80:
5971 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
5972 break;
5973 case RATE_INFO_BW_160:
5974 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
5975 break;
5976 case RATE_INFO_BW_HE_RU:
5977 rate_flg = 0;
5978 WARN_ON(!(info->flags & RATE_INFO_FLAGS_HE_MCS));
5979 break;
5980 case RATE_INFO_BW_320:
5981 rate_flg = NL80211_RATE_INFO_320_MHZ_WIDTH;
5982 break;
5983 case RATE_INFO_BW_EHT_RU:
5984 rate_flg = 0;
5985 WARN_ON(!(info->flags & RATE_INFO_FLAGS_EHT_MCS));
5986 break;
5987 }
5988
5989 if (rate_flg && nla_put_flag(msg, rate_flg))
5990 return false;
5991
5992 if (info->flags & RATE_INFO_FLAGS_MCS) {
5993 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
5994 return false;
5995 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
5996 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
5997 return false;
5998 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
5999 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
6000 return false;
6001 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
6002 return false;
6003 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
6004 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
6005 return false;
6006 } else if (info->flags & RATE_INFO_FLAGS_HE_MCS) {
6007 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_MCS, info->mcs))
6008 return false;
6009 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_NSS, info->nss))
6010 return false;
6011 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_GI, info->he_gi))
6012 return false;
6013 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_DCM, info->he_dcm))
6014 return false;
6015 if (info->bw == RATE_INFO_BW_HE_RU &&
6016 nla_put_u8(msg, NL80211_RATE_INFO_HE_RU_ALLOC,
6017 info->he_ru_alloc))
6018 return false;
6019 } else if (info->flags & RATE_INFO_FLAGS_EHT_MCS) {
6020 if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_MCS, info->mcs))
6021 return false;
6022 if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_NSS, info->nss))
6023 return false;
6024 if (nla_put_u8(msg, NL80211_RATE_INFO_EHT_GI, info->eht_gi))
6025 return false;
6026 if (info->bw == RATE_INFO_BW_EHT_RU &&
6027 nla_put_u8(msg, NL80211_RATE_INFO_EHT_RU_ALLOC,
6028 info->eht_ru_alloc))
6029 return false;
6030 }
6031
6032 nla_nest_end(msg, rate);
6033 return true;
6034}
6035
6036static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
6037 int id)
6038{
6039 void *attr;
6040 int i = 0;
6041
6042 if (!mask)
6043 return true;
6044
6045 attr = nla_nest_start_noflag(msg, id);
6046 if (!attr)
6047 return false;
6048
6049 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
6050 if (!(mask & BIT(i)))
6051 continue;
6052
6053 if (nla_put_u8(msg, i, signal[i]))
6054 return false;
6055 }
6056
6057 nla_nest_end(msg, attr);
6058
6059 return true;
6060}
6061
6062static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
6063 u32 seq, int flags,
6064 struct cfg80211_registered_device *rdev,
6065 struct net_device *dev,
6066 const u8 *mac_addr, struct station_info *sinfo)
6067{
6068 void *hdr;
6069 struct nlattr *sinfoattr, *bss_param;
6070
6071 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
6072 if (!hdr) {
6073 cfg80211_sinfo_release_content(sinfo);
6074 return -1;
6075 }
6076
6077 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
6078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
6079 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
6080 goto nla_put_failure;
6081
6082 sinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_STA_INFO);
6083 if (!sinfoattr)
6084 goto nla_put_failure;
6085
6086#define PUT_SINFO(attr, memb, type) do { \
6087 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
6088 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
6089 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
6090 sinfo->memb)) \
6091 goto nla_put_failure; \
6092 } while (0)
6093#define PUT_SINFO_U64(attr, memb) do { \
6094 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
6095 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
6096 sinfo->memb, NL80211_STA_INFO_PAD)) \
6097 goto nla_put_failure; \
6098 } while (0)
6099
6100 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
6101 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
6102 PUT_SINFO_U64(ASSOC_AT_BOOTTIME, assoc_at);
6103
6104 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
6105 BIT_ULL(NL80211_STA_INFO_RX_BYTES64)) &&
6106 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
6107 (u32)sinfo->rx_bytes))
6108 goto nla_put_failure;
6109
6110 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
6111 BIT_ULL(NL80211_STA_INFO_TX_BYTES64)) &&
6112 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
6113 (u32)sinfo->tx_bytes))
6114 goto nla_put_failure;
6115
6116 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
6117 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
6118 PUT_SINFO(LLID, llid, u16);
6119 PUT_SINFO(PLID, plid, u16);
6120 PUT_SINFO(PLINK_STATE, plink_state, u8);
6121 PUT_SINFO_U64(RX_DURATION, rx_duration);
6122 PUT_SINFO_U64(TX_DURATION, tx_duration);
6123
6124 if (wiphy_ext_feature_isset(&rdev->wiphy,
6125 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
6126 PUT_SINFO(AIRTIME_WEIGHT, airtime_weight, u16);
6127
6128 switch (rdev->wiphy.signal_type) {
6129 case CFG80211_SIGNAL_TYPE_MBM:
6130 PUT_SINFO(SIGNAL, signal, u8);
6131 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
6132 break;
6133 default:
6134 break;
6135 }
6136 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) {
6137 if (!nl80211_put_signal(msg, sinfo->chains,
6138 sinfo->chain_signal,
6139 NL80211_STA_INFO_CHAIN_SIGNAL))
6140 goto nla_put_failure;
6141 }
6142 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
6143 if (!nl80211_put_signal(msg, sinfo->chains,
6144 sinfo->chain_signal_avg,
6145 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
6146 goto nla_put_failure;
6147 }
6148 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) {
6149 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
6150 NL80211_STA_INFO_TX_BITRATE))
6151 goto nla_put_failure;
6152 }
6153 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) {
6154 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
6155 NL80211_STA_INFO_RX_BITRATE))
6156 goto nla_put_failure;
6157 }
6158
6159 PUT_SINFO(RX_PACKETS, rx_packets, u32);
6160 PUT_SINFO(TX_PACKETS, tx_packets, u32);
6161 PUT_SINFO(TX_RETRIES, tx_retries, u32);
6162 PUT_SINFO(TX_FAILED, tx_failed, u32);
6163 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
6164 PUT_SINFO(AIRTIME_LINK_METRIC, airtime_link_metric, u32);
6165 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
6166 PUT_SINFO(LOCAL_PM, local_pm, u32);
6167 PUT_SINFO(PEER_PM, peer_pm, u32);
6168 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
6169 PUT_SINFO(CONNECTED_TO_GATE, connected_to_gate, u8);
6170 PUT_SINFO(CONNECTED_TO_AS, connected_to_as, u8);
6171
6172 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_BSS_PARAM)) {
6173 bss_param = nla_nest_start_noflag(msg,
6174 NL80211_STA_INFO_BSS_PARAM);
6175 if (!bss_param)
6176 goto nla_put_failure;
6177
6178 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
6179 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
6180 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
6181 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
6182 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
6183 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
6184 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
6185 sinfo->bss_param.dtim_period) ||
6186 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
6187 sinfo->bss_param.beacon_interval))
6188 goto nla_put_failure;
6189
6190 nla_nest_end(msg, bss_param);
6191 }
6192 if ((sinfo->filled & BIT_ULL(NL80211_STA_INFO_STA_FLAGS)) &&
6193 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
6194 sizeof(struct nl80211_sta_flag_update),
6195 &sinfo->sta_flags))
6196 goto nla_put_failure;
6197
6198 PUT_SINFO_U64(T_OFFSET, t_offset);
6199 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
6200 PUT_SINFO_U64(BEACON_RX, rx_beacon);
6201 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
6202 PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32);
6203 PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32);
6204 if (wiphy_ext_feature_isset(&rdev->wiphy,
6205 NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT)) {
6206 PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
6207 PUT_SINFO(ACK_SIGNAL_AVG, avg_ack_signal, s8);
6208 }
6209
6210#undef PUT_SINFO
6211#undef PUT_SINFO_U64
6212
6213 if (sinfo->pertid) {
6214 struct nlattr *tidsattr;
6215 int tid;
6216
6217 tidsattr = nla_nest_start_noflag(msg,
6218 NL80211_STA_INFO_TID_STATS);
6219 if (!tidsattr)
6220 goto nla_put_failure;
6221
6222 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
6223 struct cfg80211_tid_stats *tidstats;
6224 struct nlattr *tidattr;
6225
6226 tidstats = &sinfo->pertid[tid];
6227
6228 if (!tidstats->filled)
6229 continue;
6230
6231 tidattr = nla_nest_start_noflag(msg, tid + 1);
6232 if (!tidattr)
6233 goto nla_put_failure;
6234
6235#define PUT_TIDVAL_U64(attr, memb) do { \
6236 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
6237 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
6238 tidstats->memb, NL80211_TID_STATS_PAD)) \
6239 goto nla_put_failure; \
6240 } while (0)
6241
6242 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
6243 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
6244 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
6245 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
6246
6247#undef PUT_TIDVAL_U64
6248 if ((tidstats->filled &
6249 BIT(NL80211_TID_STATS_TXQ_STATS)) &&
6250 !nl80211_put_txq_stats(msg, &tidstats->txq_stats,
6251 NL80211_TID_STATS_TXQ_STATS))
6252 goto nla_put_failure;
6253
6254 nla_nest_end(msg, tidattr);
6255 }
6256
6257 nla_nest_end(msg, tidsattr);
6258 }
6259
6260 nla_nest_end(msg, sinfoattr);
6261
6262 if (sinfo->assoc_req_ies_len &&
6263 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
6264 sinfo->assoc_req_ies))
6265 goto nla_put_failure;
6266
6267 cfg80211_sinfo_release_content(sinfo);
6268 genlmsg_end(msg, hdr);
6269 return 0;
6270
6271 nla_put_failure:
6272 cfg80211_sinfo_release_content(sinfo);
6273 genlmsg_cancel(msg, hdr);
6274 return -EMSGSIZE;
6275}
6276
6277static int nl80211_dump_station(struct sk_buff *skb,
6278 struct netlink_callback *cb)
6279{
6280 struct station_info sinfo;
6281 struct cfg80211_registered_device *rdev;
6282 struct wireless_dev *wdev;
6283 u8 mac_addr[ETH_ALEN];
6284 int sta_idx = cb->args[2];
6285 int err;
6286
6287 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL);
6288 if (err)
6289 return err;
6290
6291 __acquire(&rdev->wiphy.mtx);
6292
6293 if (!wdev->netdev) {
6294 err = -EINVAL;
6295 goto out_err;
6296 }
6297
6298 if (!rdev->ops->dump_station) {
6299 err = -EOPNOTSUPP;
6300 goto out_err;
6301 }
6302
6303 while (1) {
6304 memset(&sinfo, 0, sizeof(sinfo));
6305 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
6306 mac_addr, &sinfo);
6307 if (err == -ENOENT)
6308 break;
6309 if (err)
6310 goto out_err;
6311
6312 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
6313 NETLINK_CB(cb->skb).portid,
6314 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6315 rdev, wdev->netdev, mac_addr,
6316 &sinfo) < 0)
6317 goto out;
6318
6319 sta_idx++;
6320 }
6321
6322 out:
6323 cb->args[2] = sta_idx;
6324 err = skb->len;
6325 out_err:
6326 wiphy_unlock(&rdev->wiphy);
6327
6328 return err;
6329}
6330
6331static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
6332{
6333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6334 struct net_device *dev = info->user_ptr[1];
6335 struct station_info sinfo;
6336 struct sk_buff *msg;
6337 u8 *mac_addr = NULL;
6338 int err;
6339
6340 memset(&sinfo, 0, sizeof(sinfo));
6341
6342 if (!info->attrs[NL80211_ATTR_MAC])
6343 return -EINVAL;
6344
6345 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6346
6347 if (!rdev->ops->get_station)
6348 return -EOPNOTSUPP;
6349
6350 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
6351 if (err)
6352 return err;
6353
6354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6355 if (!msg) {
6356 cfg80211_sinfo_release_content(&sinfo);
6357 return -ENOMEM;
6358 }
6359
6360 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
6361 info->snd_portid, info->snd_seq, 0,
6362 rdev, dev, mac_addr, &sinfo) < 0) {
6363 nlmsg_free(msg);
6364 return -ENOBUFS;
6365 }
6366
6367 return genlmsg_reply(msg, info);
6368}
6369
6370int cfg80211_check_station_change(struct wiphy *wiphy,
6371 struct station_parameters *params,
6372 enum cfg80211_station_type statype)
6373{
6374 if (params->listen_interval != -1 &&
6375 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
6376 return -EINVAL;
6377
6378 if (params->support_p2p_ps != -1 &&
6379 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
6380 return -EINVAL;
6381
6382 if (params->aid &&
6383 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
6384 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
6385 return -EINVAL;
6386
6387
6388 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
6389
6390 switch (statype) {
6391 case CFG80211_STA_MESH_PEER_KERNEL:
6392 case CFG80211_STA_MESH_PEER_USER:
6393
6394
6395
6396
6397
6398 if (params->sta_flags_mask &
6399 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
6400 BIT(NL80211_STA_FLAG_MFP) |
6401 BIT(NL80211_STA_FLAG_AUTHORIZED)))
6402 return -EINVAL;
6403 break;
6404 case CFG80211_STA_TDLS_PEER_SETUP:
6405 case CFG80211_STA_TDLS_PEER_ACTIVE:
6406 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
6407 return -EINVAL;
6408
6409 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
6410 break;
6411 default:
6412
6413 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
6414 return -EINVAL;
6415 if (params->local_pm)
6416 return -EINVAL;
6417 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
6418 return -EINVAL;
6419 }
6420
6421 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
6422 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
6423
6424 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
6425 return -EINVAL;
6426
6427
6428
6429
6430
6431 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
6432 }
6433
6434 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
6435 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
6436
6437 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
6438 return -EINVAL;
6439 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
6440 return -EINVAL;
6441 if (params->supported_rates)
6442 return -EINVAL;
6443 if (params->ext_capab || params->ht_capa || params->vht_capa ||
6444 params->he_capa || params->eht_capa)
6445 return -EINVAL;
6446 }
6447
6448 if (statype != CFG80211_STA_AP_CLIENT &&
6449 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
6450 if (params->vlan)
6451 return -EINVAL;
6452 }
6453
6454 switch (statype) {
6455 case CFG80211_STA_AP_MLME_CLIENT:
6456
6457 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
6458 return -EOPNOTSUPP;
6459 break;
6460 case CFG80211_STA_AP_CLIENT:
6461 case CFG80211_STA_AP_CLIENT_UNASSOC:
6462
6463 if (params->sta_flags_mask &
6464 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
6465 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
6466 BIT(NL80211_STA_FLAG_ASSOCIATED) |
6467 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
6468 BIT(NL80211_STA_FLAG_WME) |
6469 BIT(NL80211_STA_FLAG_MFP)))
6470 return -EINVAL;
6471
6472
6473 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
6474 params->sta_flags_mask &
6475 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
6476 BIT(NL80211_STA_FLAG_ASSOCIATED)))
6477 return -EINVAL;
6478 break;
6479 case CFG80211_STA_IBSS:
6480 case CFG80211_STA_AP_STA:
6481
6482 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
6483 return -EINVAL;
6484 break;
6485 case CFG80211_STA_TDLS_PEER_SETUP:
6486
6487 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
6488 BIT(NL80211_STA_FLAG_WME)))
6489 return -EINVAL;
6490
6491 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
6492 !params->supported_rates)
6493 return -EINVAL;
6494 break;
6495 case CFG80211_STA_TDLS_PEER_ACTIVE:
6496
6497 return -EINVAL;
6498 case CFG80211_STA_MESH_PEER_KERNEL:
6499 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
6500 return -EINVAL;
6501 break;
6502 case CFG80211_STA_MESH_PEER_USER:
6503 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
6504 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
6505 return -EINVAL;
6506 break;
6507 }
6508
6509
6510
6511
6512
6513
6514 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
6515 statype != CFG80211_STA_TDLS_PEER_SETUP)
6516 params->opmode_notif_used = false;
6517
6518 return 0;
6519}
6520EXPORT_SYMBOL(cfg80211_check_station_change);
6521
6522
6523
6524
6525static struct net_device *get_vlan(struct genl_info *info,
6526 struct cfg80211_registered_device *rdev)
6527{
6528 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
6529 struct net_device *v;
6530 int ret;
6531
6532 if (!vlanattr)
6533 return NULL;
6534
6535 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
6536 if (!v)
6537 return ERR_PTR(-ENODEV);
6538
6539 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
6540 ret = -EINVAL;
6541 goto error;
6542 }
6543
6544 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6545 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6546 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
6547 ret = -EINVAL;
6548 goto error;
6549 }
6550
6551 if (!netif_running(v)) {
6552 ret = -ENETDOWN;
6553 goto error;
6554 }
6555
6556 return v;
6557 error:
6558 dev_put(v);
6559 return ERR_PTR(ret);
6560}
6561
6562static const struct nla_policy
6563nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
6564 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
6565 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
6566};
6567
6568static int nl80211_parse_sta_wme(struct genl_info *info,
6569 struct station_parameters *params)
6570{
6571 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
6572 struct nlattr *nla;
6573 int err;
6574
6575
6576 if (!info->attrs[NL80211_ATTR_STA_WME])
6577 return 0;
6578
6579 nla = info->attrs[NL80211_ATTR_STA_WME];
6580 err = nla_parse_nested_deprecated(tb, NL80211_STA_WME_MAX, nla,
6581 nl80211_sta_wme_policy,
6582 info->extack);
6583 if (err)
6584 return err;
6585
6586 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
6587 params->uapsd_queues = nla_get_u8(
6588 tb[NL80211_STA_WME_UAPSD_QUEUES]);
6589 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
6590 return -EINVAL;
6591
6592 if (tb[NL80211_STA_WME_MAX_SP])
6593 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
6594
6595 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
6596 return -EINVAL;
6597
6598 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
6599
6600 return 0;
6601}
6602
6603static int nl80211_parse_sta_channel_info(struct genl_info *info,
6604 struct station_parameters *params)
6605{
6606 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
6607 params->supported_channels =
6608 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
6609 params->supported_channels_len =
6610 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
6611
6612
6613
6614
6615
6616 if (params->supported_channels_len % 2)
6617 return -EINVAL;
6618 }
6619
6620 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
6621 params->supported_oper_classes =
6622 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
6623 params->supported_oper_classes_len =
6624 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
6625 }
6626 return 0;
6627}
6628
6629static int nl80211_set_station_tdls(struct genl_info *info,
6630 struct station_parameters *params)
6631{
6632 int err;
6633
6634 if (info->attrs[NL80211_ATTR_PEER_AID])
6635 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
6636 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
6637 params->ht_capa =
6638 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
6639 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
6640 params->vht_capa =
6641 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
6642 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
6643 params->he_capa =
6644 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
6645 params->he_capa_len =
6646 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
6647
6648 if (info->attrs[NL80211_ATTR_EHT_CAPABILITY]) {
6649 params->eht_capa =
6650 nla_data(info->attrs[NL80211_ATTR_EHT_CAPABILITY]);
6651 params->eht_capa_len =
6652 nla_len(info->attrs[NL80211_ATTR_EHT_CAPABILITY]);
6653
6654 if (!ieee80211_eht_capa_size_ok((const u8 *)params->he_capa,
6655 (const u8 *)params->eht_capa,
6656 params->eht_capa_len))
6657 return -EINVAL;
6658 }
6659 }
6660
6661 err = nl80211_parse_sta_channel_info(info, params);
6662 if (err)
6663 return err;
6664
6665 return nl80211_parse_sta_wme(info, params);
6666}
6667
6668static int nl80211_parse_sta_txpower_setting(struct genl_info *info,
6669 struct station_parameters *params)
6670{
6671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6672 int idx;
6673
6674 if (info->attrs[NL80211_ATTR_STA_TX_POWER_SETTING]) {
6675 if (!rdev->ops->set_tx_power ||
6676 !wiphy_ext_feature_isset(&rdev->wiphy,
6677 NL80211_EXT_FEATURE_STA_TX_PWR))
6678 return -EOPNOTSUPP;
6679
6680 idx = NL80211_ATTR_STA_TX_POWER_SETTING;
6681 params->txpwr.type = nla_get_u8(info->attrs[idx]);
6682
6683 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) {
6684 idx = NL80211_ATTR_STA_TX_POWER;
6685
6686 if (info->attrs[idx])
6687 params->txpwr.power =
6688 nla_get_s16(info->attrs[idx]);
6689 else
6690 return -EINVAL;
6691 }
6692 params->sta_modify_mask |= STATION_PARAM_APPLY_STA_TXPOWER;
6693 }
6694
6695 return 0;
6696}
6697
6698static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
6699{
6700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6701 struct net_device *dev = info->user_ptr[1];
6702 struct station_parameters params;
6703 u8 *mac_addr;
6704 int err;
6705
6706 memset(¶ms, 0, sizeof(params));
6707
6708 if (!rdev->ops->change_station)
6709 return -EOPNOTSUPP;
6710
6711
6712
6713
6714
6715
6716 if (info->attrs[NL80211_ATTR_STA_AID])
6717 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
6718
6719 if (info->attrs[NL80211_ATTR_VLAN_ID])
6720 params.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]);
6721
6722 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
6723 params.listen_interval =
6724 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
6725 else
6726 params.listen_interval = -1;
6727
6728 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS])
6729 params.support_p2p_ps =
6730 nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
6731 else
6732 params.support_p2p_ps = -1;
6733
6734 if (!info->attrs[NL80211_ATTR_MAC])
6735 return -EINVAL;
6736
6737 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6738
6739 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
6740 params.supported_rates =
6741 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
6742 params.supported_rates_len =
6743 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
6744 }
6745
6746 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
6747 params.capability =
6748 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
6749 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
6750 }
6751
6752 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
6753 params.ext_capab =
6754 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
6755 params.ext_capab_len =
6756 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
6757 }
6758
6759 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
6760 return -EINVAL;
6761
6762 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
6763 params.plink_action =
6764 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
6765
6766 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
6767 params.plink_state =
6768 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
6769 if (info->attrs[NL80211_ATTR_MESH_PEER_AID])
6770 params.peer_aid = nla_get_u16(
6771 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
6772 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
6773 }
6774
6775 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE])
6776 params.local_pm = nla_get_u32(
6777 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
6778
6779 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
6780 params.opmode_notif_used = true;
6781 params.opmode_notif =
6782 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
6783 }
6784
6785 if (info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY])
6786 params.he_6ghz_capa =
6787 nla_data(info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]);
6788
6789 if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT])
6790 params.airtime_weight =
6791 nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]);
6792
6793 if (params.airtime_weight &&
6794 !wiphy_ext_feature_isset(&rdev->wiphy,
6795 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
6796 return -EOPNOTSUPP;
6797
6798 err = nl80211_parse_sta_txpower_setting(info, ¶ms);
6799 if (err)
6800 return err;
6801
6802
6803 err = nl80211_set_station_tdls(info, ¶ms);
6804 if (err)
6805 return err;
6806
6807 params.vlan = get_vlan(info, rdev);
6808 if (IS_ERR(params.vlan))
6809 return PTR_ERR(params.vlan);
6810
6811 switch (dev->ieee80211_ptr->iftype) {
6812 case NL80211_IFTYPE_AP:
6813 case NL80211_IFTYPE_AP_VLAN:
6814 case NL80211_IFTYPE_P2P_GO:
6815 case NL80211_IFTYPE_P2P_CLIENT:
6816 case NL80211_IFTYPE_STATION:
6817 case NL80211_IFTYPE_ADHOC:
6818 case NL80211_IFTYPE_MESH_POINT:
6819 break;
6820 default:
6821 err = -EOPNOTSUPP;
6822 goto out_put_vlan;
6823 }
6824
6825
6826 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
6827
6828 out_put_vlan:
6829 dev_put(params.vlan);
6830
6831 return err;
6832}
6833
6834static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
6835{
6836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6837 int err;
6838 struct net_device *dev = info->user_ptr[1];
6839 struct station_parameters params;
6840 u8 *mac_addr = NULL;
6841 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
6842 BIT(NL80211_STA_FLAG_ASSOCIATED);
6843
6844 memset(¶ms, 0, sizeof(params));
6845
6846 if (!rdev->ops->add_station)
6847 return -EOPNOTSUPP;
6848
6849 if (!info->attrs[NL80211_ATTR_MAC])
6850 return -EINVAL;
6851
6852 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
6853 return -EINVAL;
6854
6855 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
6856 return -EINVAL;
6857
6858 if (!info->attrs[NL80211_ATTR_STA_AID] &&
6859 !info->attrs[NL80211_ATTR_PEER_AID])
6860 return -EINVAL;
6861
6862 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6863 params.supported_rates =
6864 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
6865 params.supported_rates_len =
6866 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
6867 params.listen_interval =
6868 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
6869
6870 if (info->attrs[NL80211_ATTR_VLAN_ID])
6871 params.vlan_id = nla_get_u16(info->attrs[NL80211_ATTR_VLAN_ID]);
6872
6873 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
6874 params.support_p2p_ps =
6875 nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
6876 } else {
6877
6878
6879
6880
6881 params.support_p2p_ps =
6882 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
6883 }
6884
6885 if (info->attrs[NL80211_ATTR_PEER_AID])
6886 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
6887 else
6888 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
6889
6890 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
6891 params.capability =
6892 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
6893 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
6894 }
6895
6896 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
6897 params.ext_capab =
6898 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
6899 params.ext_capab_len =
6900 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
6901 }
6902
6903 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
6904 params.ht_capa =
6905 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
6906
6907 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
6908 params.vht_capa =
6909 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
6910
6911 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
6912 params.he_capa =
6913 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
6914 params.he_capa_len =
6915 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
6916
6917 if (info->attrs[NL80211_ATTR_EHT_CAPABILITY]) {
6918 params.eht_capa =
6919 nla_data(info->attrs[NL80211_ATTR_EHT_CAPABILITY]);
6920 params.eht_capa_len =
6921 nla_len(info->attrs[NL80211_ATTR_EHT_CAPABILITY]);
6922
6923 if (!ieee80211_eht_capa_size_ok((const u8 *)params.he_capa,
6924 (const u8 *)params.eht_capa,
6925 params.eht_capa_len))
6926 return -EINVAL;
6927 }
6928 }
6929
6930 if (info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY])
6931 params.he_6ghz_capa =
6932 nla_data(info->attrs[NL80211_ATTR_HE_6GHZ_CAPABILITY]);
6933
6934 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
6935 params.opmode_notif_used = true;
6936 params.opmode_notif =
6937 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
6938 }
6939
6940 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
6941 params.plink_action =
6942 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
6943
6944 if (info->attrs[NL80211_ATTR_AIRTIME_WEIGHT])
6945 params.airtime_weight =
6946 nla_get_u16(info->attrs[NL80211_ATTR_AIRTIME_WEIGHT]);
6947
6948 if (params.airtime_weight &&
6949 !wiphy_ext_feature_isset(&rdev->wiphy,
6950 NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
6951 return -EOPNOTSUPP;
6952
6953 err = nl80211_parse_sta_txpower_setting(info, ¶ms);
6954 if (err)
6955 return err;
6956
6957 err = nl80211_parse_sta_channel_info(info, ¶ms);
6958 if (err)
6959 return err;
6960
6961 err = nl80211_parse_sta_wme(info, ¶ms);
6962 if (err)
6963 return err;
6964
6965 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
6966 return -EINVAL;
6967
6968
6969
6970
6971
6972
6973 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
6974 params.ht_capa = NULL;
6975 params.vht_capa = NULL;
6976
6977
6978 if (params.he_capa_len || params.he_6ghz_capa ||
6979 params.eht_capa_len)
6980 return -EINVAL;
6981 }
6982
6983
6984 if (params.he_6ghz_capa && (params.ht_capa || params.vht_capa))
6985 return -EINVAL;
6986
6987
6988 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
6989
6990 switch (dev->ieee80211_ptr->iftype) {
6991 case NL80211_IFTYPE_AP:
6992 case NL80211_IFTYPE_AP_VLAN:
6993 case NL80211_IFTYPE_P2P_GO:
6994
6995 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
6996 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
6997 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
6998
6999
7000 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
7001 info->attrs[NL80211_ATTR_PEER_AID])
7002 return -EINVAL;
7003
7004 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
7005
7006
7007 if (!(rdev->wiphy.features &
7008 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
7009 params.sta_flags_mask & auth_assoc)
7010 return -EINVAL;
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022 if (!(params.sta_flags_mask & auth_assoc)) {
7023 params.sta_flags_mask |= auth_assoc;
7024 params.sta_flags_set |= auth_assoc;
7025 }
7026
7027
7028 params.vlan = get_vlan(info, rdev);
7029 if (IS_ERR(params.vlan))
7030 return PTR_ERR(params.vlan);
7031 break;
7032 case NL80211_IFTYPE_MESH_POINT:
7033
7034 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
7035
7036
7037 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
7038 return -EINVAL;
7039
7040 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
7041 info->attrs[NL80211_ATTR_PEER_AID])
7042 return -EINVAL;
7043 break;
7044 case NL80211_IFTYPE_STATION:
7045 case NL80211_IFTYPE_P2P_CLIENT:
7046
7047 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
7048
7049
7050 if (params.sta_flags_mask &
7051 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
7052 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
7053 return -EINVAL;
7054
7055 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
7056 return -EINVAL;
7057
7058 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
7059 return -EOPNOTSUPP;
7060
7061 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
7062 return -EOPNOTSUPP;
7063
7064
7065
7066
7067 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
7068 break;
7069 default:
7070 return -EOPNOTSUPP;
7071 }
7072
7073
7074
7075 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
7076
7077 dev_put(params.vlan);
7078 return err;
7079}
7080
7081static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
7082{
7083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7084 struct net_device *dev = info->user_ptr[1];
7085 struct station_del_parameters params;
7086
7087 memset(¶ms, 0, sizeof(params));
7088
7089 if (info->attrs[NL80211_ATTR_MAC])
7090 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
7091
7092 switch (dev->ieee80211_ptr->iftype) {
7093 case NL80211_IFTYPE_AP:
7094 case NL80211_IFTYPE_AP_VLAN:
7095 case NL80211_IFTYPE_MESH_POINT:
7096 case NL80211_IFTYPE_P2P_GO:
7097
7098 break;
7099 case NL80211_IFTYPE_ADHOC:
7100
7101 if (wiphy_ext_feature_isset(&rdev->wiphy,
7102 NL80211_EXT_FEATURE_DEL_IBSS_STA))
7103 break;
7104 return -EINVAL;
7105 default:
7106 return -EINVAL;
7107 }
7108
7109 if (!rdev->ops->del_station)
7110 return -EOPNOTSUPP;
7111
7112 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
7113 params.subtype =
7114 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
7115 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
7116 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
7117 return -EINVAL;
7118 } else {
7119
7120 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
7121 }
7122
7123 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
7124 params.reason_code =
7125 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7126 if (params.reason_code == 0)
7127 return -EINVAL;
7128 } else {
7129
7130 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
7131 }
7132
7133 return rdev_del_station(rdev, dev, ¶ms);
7134}
7135
7136static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
7137 int flags, struct net_device *dev,
7138 u8 *dst, u8 *next_hop,
7139 struct mpath_info *pinfo)
7140{
7141 void *hdr;
7142 struct nlattr *pinfoattr;
7143
7144 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
7145 if (!hdr)
7146 return -1;
7147
7148 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7149 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
7150 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
7151 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
7152 goto nla_put_failure;
7153
7154 pinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_MPATH_INFO);
7155 if (!pinfoattr)
7156 goto nla_put_failure;
7157 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
7158 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
7159 pinfo->frame_qlen))
7160 goto nla_put_failure;
7161 if (((pinfo->filled & MPATH_INFO_SN) &&
7162 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
7163 ((pinfo->filled & MPATH_INFO_METRIC) &&
7164 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
7165 pinfo->metric)) ||
7166 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
7167 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
7168 pinfo->exptime)) ||
7169 ((pinfo->filled & MPATH_INFO_FLAGS) &&
7170 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
7171 pinfo->flags)) ||
7172 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
7173 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
7174 pinfo->discovery_timeout)) ||
7175 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
7176 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
7177 pinfo->discovery_retries)) ||
7178 ((pinfo->filled & MPATH_INFO_HOP_COUNT) &&
7179 nla_put_u8(msg, NL80211_MPATH_INFO_HOP_COUNT,
7180 pinfo->hop_count)) ||
7181 ((pinfo->filled & MPATH_INFO_PATH_CHANGE) &&
7182 nla_put_u32(msg, NL80211_MPATH_INFO_PATH_CHANGE,
7183 pinfo->path_change_count)))
7184 goto nla_put_failure;
7185
7186 nla_nest_end(msg, pinfoattr);
7187
7188 genlmsg_end(msg, hdr);
7189 return 0;
7190
7191 nla_put_failure:
7192 genlmsg_cancel(msg, hdr);
7193 return -EMSGSIZE;
7194}
7195
7196static int nl80211_dump_mpath(struct sk_buff *skb,
7197 struct netlink_callback *cb)
7198{
7199 struct mpath_info pinfo;
7200 struct cfg80211_registered_device *rdev;
7201 struct wireless_dev *wdev;
7202 u8 dst[ETH_ALEN];
7203 u8 next_hop[ETH_ALEN];
7204 int path_idx = cb->args[2];
7205 int err;
7206
7207 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL);
7208 if (err)
7209 return err;
7210
7211 __acquire(&rdev->wiphy.mtx);
7212
7213 if (!rdev->ops->dump_mpath) {
7214 err = -EOPNOTSUPP;
7215 goto out_err;
7216 }
7217
7218 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
7219 err = -EOPNOTSUPP;
7220 goto out_err;
7221 }
7222
7223 while (1) {
7224 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
7225 next_hop, &pinfo);
7226 if (err == -ENOENT)
7227 break;
7228 if (err)
7229 goto out_err;
7230
7231 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
7232 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7233 wdev->netdev, dst, next_hop,
7234 &pinfo) < 0)
7235 goto out;
7236
7237 path_idx++;
7238 }
7239
7240 out:
7241 cb->args[2] = path_idx;
7242 err = skb->len;
7243 out_err:
7244 wiphy_unlock(&rdev->wiphy);
7245 return err;
7246}
7247
7248static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
7249{
7250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7251 int err;
7252 struct net_device *dev = info->user_ptr[1];
7253 struct mpath_info pinfo;
7254 struct sk_buff *msg;
7255 u8 *dst = NULL;
7256 u8 next_hop[ETH_ALEN];
7257
7258 memset(&pinfo, 0, sizeof(pinfo));
7259
7260 if (!info->attrs[NL80211_ATTR_MAC])
7261 return -EINVAL;
7262
7263 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
7264
7265 if (!rdev->ops->get_mpath)
7266 return -EOPNOTSUPP;
7267
7268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7269 return -EOPNOTSUPP;
7270
7271 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
7272 if (err)
7273 return err;
7274
7275 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7276 if (!msg)
7277 return -ENOMEM;
7278
7279 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
7280 dev, dst, next_hop, &pinfo) < 0) {
7281 nlmsg_free(msg);
7282 return -ENOBUFS;
7283 }
7284
7285 return genlmsg_reply(msg, info);
7286}
7287
7288static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
7289{
7290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7291 struct net_device *dev = info->user_ptr[1];
7292 u8 *dst = NULL;
7293 u8 *next_hop = NULL;
7294
7295 if (!info->attrs[NL80211_ATTR_MAC])
7296 return -EINVAL;
7297
7298 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
7299 return -EINVAL;
7300
7301 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
7302 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
7303
7304 if (!rdev->ops->change_mpath)
7305 return -EOPNOTSUPP;
7306
7307 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7308 return -EOPNOTSUPP;
7309
7310 return rdev_change_mpath(rdev, dev, dst, next_hop);
7311}
7312
7313static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
7314{
7315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7316 struct net_device *dev = info->user_ptr[1];
7317 u8 *dst = NULL;
7318 u8 *next_hop = NULL;
7319
7320 if (!info->attrs[NL80211_ATTR_MAC])
7321 return -EINVAL;
7322
7323 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
7324 return -EINVAL;
7325
7326 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
7327 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
7328
7329 if (!rdev->ops->add_mpath)
7330 return -EOPNOTSUPP;
7331
7332 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7333 return -EOPNOTSUPP;
7334
7335 return rdev_add_mpath(rdev, dev, dst, next_hop);
7336}
7337
7338static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
7339{
7340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7341 struct net_device *dev = info->user_ptr[1];
7342 u8 *dst = NULL;
7343
7344 if (info->attrs[NL80211_ATTR_MAC])
7345 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
7346
7347 if (!rdev->ops->del_mpath)
7348 return -EOPNOTSUPP;
7349
7350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7351 return -EOPNOTSUPP;
7352
7353 return rdev_del_mpath(rdev, dev, dst);
7354}
7355
7356static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
7357{
7358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7359 int err;
7360 struct net_device *dev = info->user_ptr[1];
7361 struct mpath_info pinfo;
7362 struct sk_buff *msg;
7363 u8 *dst = NULL;
7364 u8 mpp[ETH_ALEN];
7365
7366 memset(&pinfo, 0, sizeof(pinfo));
7367
7368 if (!info->attrs[NL80211_ATTR_MAC])
7369 return -EINVAL;
7370
7371 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
7372
7373 if (!rdev->ops->get_mpp)
7374 return -EOPNOTSUPP;
7375
7376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7377 return -EOPNOTSUPP;
7378
7379 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
7380 if (err)
7381 return err;
7382
7383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7384 if (!msg)
7385 return -ENOMEM;
7386
7387 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
7388 dev, dst, mpp, &pinfo) < 0) {
7389 nlmsg_free(msg);
7390 return -ENOBUFS;
7391 }
7392
7393 return genlmsg_reply(msg, info);
7394}
7395
7396static int nl80211_dump_mpp(struct sk_buff *skb,
7397 struct netlink_callback *cb)
7398{
7399 struct mpath_info pinfo;
7400 struct cfg80211_registered_device *rdev;
7401 struct wireless_dev *wdev;
7402 u8 dst[ETH_ALEN];
7403 u8 mpp[ETH_ALEN];
7404 int path_idx = cb->args[2];
7405 int err;
7406
7407 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL);
7408 if (err)
7409 return err;
7410
7411 __acquire(&rdev->wiphy.mtx);
7412
7413 if (!rdev->ops->dump_mpp) {
7414 err = -EOPNOTSUPP;
7415 goto out_err;
7416 }
7417
7418 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
7419 err = -EOPNOTSUPP;
7420 goto out_err;
7421 }
7422
7423 while (1) {
7424 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
7425 mpp, &pinfo);
7426 if (err == -ENOENT)
7427 break;
7428 if (err)
7429 goto out_err;
7430
7431 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
7432 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7433 wdev->netdev, dst, mpp,
7434 &pinfo) < 0)
7435 goto out;
7436
7437 path_idx++;
7438 }
7439
7440 out:
7441 cb->args[2] = path_idx;
7442 err = skb->len;
7443 out_err:
7444 wiphy_unlock(&rdev->wiphy);
7445 return err;
7446}
7447
7448static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
7449{
7450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7451 struct net_device *dev = info->user_ptr[1];
7452 struct wireless_dev *wdev = dev->ieee80211_ptr;
7453 struct bss_parameters params;
7454 int err;
7455
7456 memset(¶ms, 0, sizeof(params));
7457
7458 params.use_cts_prot = -1;
7459 params.use_short_preamble = -1;
7460 params.use_short_slot_time = -1;
7461 params.ap_isolate = -1;
7462 params.ht_opmode = -1;
7463 params.p2p_ctwindow = -1;
7464 params.p2p_opp_ps = -1;
7465
7466 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
7467 params.use_cts_prot =
7468 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
7469 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
7470 params.use_short_preamble =
7471 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
7472 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
7473 params.use_short_slot_time =
7474 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
7475 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7476 params.basic_rates =
7477 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7478 params.basic_rates_len =
7479 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7480 }
7481 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
7482 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
7483 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
7484 params.ht_opmode =
7485 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
7486
7487 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
7488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
7489 return -EINVAL;
7490 params.p2p_ctwindow =
7491 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
7492 if (params.p2p_ctwindow != 0 &&
7493 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
7494 return -EINVAL;
7495 }
7496
7497 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
7498 u8 tmp;
7499
7500 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
7501 return -EINVAL;
7502 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
7503 params.p2p_opp_ps = tmp;
7504 if (params.p2p_opp_ps &&
7505 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
7506 return -EINVAL;
7507 }
7508
7509 if (!rdev->ops->change_bss)
7510 return -EOPNOTSUPP;
7511
7512 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7513 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
7514 return -EOPNOTSUPP;
7515
7516 wdev_lock(wdev);
7517 err = rdev_change_bss(rdev, dev, ¶ms);
7518 wdev_unlock(wdev);
7519
7520 return err;
7521}
7522
7523static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
7524{
7525 char *data = NULL;
7526 bool is_indoor;
7527 enum nl80211_user_reg_hint_type user_reg_hint_type;
7528 u32 owner_nlportid;
7529
7530
7531
7532
7533
7534
7535
7536 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
7537 return -EINPROGRESS;
7538
7539 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
7540 user_reg_hint_type =
7541 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
7542 else
7543 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
7544
7545 switch (user_reg_hint_type) {
7546 case NL80211_USER_REG_HINT_USER:
7547 case NL80211_USER_REG_HINT_CELL_BASE:
7548 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
7549 return -EINVAL;
7550
7551 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
7552 return regulatory_hint_user(data, user_reg_hint_type);
7553 case NL80211_USER_REG_HINT_INDOOR:
7554 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
7555 owner_nlportid = info->snd_portid;
7556 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
7557 } else {
7558 owner_nlportid = 0;
7559 is_indoor = true;
7560 }
7561
7562 return regulatory_hint_indoor(is_indoor, owner_nlportid);
7563 default:
7564 return -EINVAL;
7565 }
7566}
7567
7568static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
7569{
7570 return reg_reload_regdb();
7571}
7572
7573static int nl80211_get_mesh_config(struct sk_buff *skb,
7574 struct genl_info *info)
7575{
7576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7577 struct net_device *dev = info->user_ptr[1];
7578 struct wireless_dev *wdev = dev->ieee80211_ptr;
7579 struct mesh_config cur_params;
7580 int err = 0;
7581 void *hdr;
7582 struct nlattr *pinfoattr;
7583 struct sk_buff *msg;
7584
7585 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
7586 return -EOPNOTSUPP;
7587
7588 if (!rdev->ops->get_mesh_config)
7589 return -EOPNOTSUPP;
7590
7591 wdev_lock(wdev);
7592
7593 if (!wdev->mesh_id_len)
7594 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
7595 else
7596 err = rdev_get_mesh_config(rdev, dev, &cur_params);
7597 wdev_unlock(wdev);
7598
7599 if (err)
7600 return err;
7601
7602
7603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7604 if (!msg)
7605 return -ENOMEM;
7606 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7607 NL80211_CMD_GET_MESH_CONFIG);
7608 if (!hdr)
7609 goto out;
7610 pinfoattr = nla_nest_start_noflag(msg, NL80211_ATTR_MESH_CONFIG);
7611 if (!pinfoattr)
7612 goto nla_put_failure;
7613 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7614 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
7615 cur_params.dot11MeshRetryTimeout) ||
7616 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
7617 cur_params.dot11MeshConfirmTimeout) ||
7618 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
7619 cur_params.dot11MeshHoldingTimeout) ||
7620 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
7621 cur_params.dot11MeshMaxPeerLinks) ||
7622 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
7623 cur_params.dot11MeshMaxRetries) ||
7624 nla_put_u8(msg, NL80211_MESHCONF_TTL,
7625 cur_params.dot11MeshTTL) ||
7626 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
7627 cur_params.element_ttl) ||
7628 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
7629 cur_params.auto_open_plinks) ||
7630 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
7631 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
7632 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
7633 cur_params.dot11MeshHWMPmaxPREQretries) ||
7634 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
7635 cur_params.path_refresh_time) ||
7636 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
7637 cur_params.min_discovery_timeout) ||
7638 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
7639 cur_params.dot11MeshHWMPactivePathTimeout) ||
7640 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
7641 cur_params.dot11MeshHWMPpreqMinInterval) ||
7642 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
7643 cur_params.dot11MeshHWMPperrMinInterval) ||
7644 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
7645 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
7646 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
7647 cur_params.dot11MeshHWMPRootMode) ||
7648 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
7649 cur_params.dot11MeshHWMPRannInterval) ||
7650 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
7651 cur_params.dot11MeshGateAnnouncementProtocol) ||
7652 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
7653 cur_params.dot11MeshForwarding) ||
7654 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
7655 cur_params.rssi_threshold) ||
7656 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
7657 cur_params.ht_opmode) ||
7658 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
7659 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
7660 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
7661 cur_params.dot11MeshHWMProotInterval) ||
7662 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
7663 cur_params.dot11MeshHWMPconfirmationInterval) ||
7664 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
7665 cur_params.power_mode) ||
7666 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
7667 cur_params.dot11MeshAwakeWindowDuration) ||
7668 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
7669 cur_params.plink_timeout) ||
7670 nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_GATE,
7671 cur_params.dot11MeshConnectedToMeshGate) ||
7672 nla_put_u8(msg, NL80211_MESHCONF_NOLEARN,
7673 cur_params.dot11MeshNolearn) ||
7674 nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_AS,
7675 cur_params.dot11MeshConnectedToAuthServer))
7676 goto nla_put_failure;
7677 nla_nest_end(msg, pinfoattr);
7678 genlmsg_end(msg, hdr);
7679 return genlmsg_reply(msg, info);
7680
7681 nla_put_failure:
7682 out:
7683 nlmsg_free(msg);
7684 return -ENOBUFS;
7685}
7686
7687static const struct nla_policy
7688nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
7689 [NL80211_MESHCONF_RETRY_TIMEOUT] =
7690 NLA_POLICY_RANGE(NLA_U16, 1, 255),
7691 [NL80211_MESHCONF_CONFIRM_TIMEOUT] =
7692 NLA_POLICY_RANGE(NLA_U16, 1, 255),
7693 [NL80211_MESHCONF_HOLDING_TIMEOUT] =
7694 NLA_POLICY_RANGE(NLA_U16, 1, 255),
7695 [NL80211_MESHCONF_MAX_PEER_LINKS] =
7696 NLA_POLICY_RANGE(NLA_U16, 0, 255),
7697 [NL80211_MESHCONF_MAX_RETRIES] = NLA_POLICY_MAX(NLA_U8, 16),
7698 [NL80211_MESHCONF_TTL] = NLA_POLICY_MIN(NLA_U8, 1),
7699 [NL80211_MESHCONF_ELEMENT_TTL] = NLA_POLICY_MIN(NLA_U8, 1),
7700 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = NLA_POLICY_MAX(NLA_U8, 1),
7701 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] =
7702 NLA_POLICY_RANGE(NLA_U32, 1, 255),
7703 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
7704 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
7705 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = NLA_POLICY_MIN(NLA_U16, 1),
7706 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
7707 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] =
7708 NLA_POLICY_MIN(NLA_U16, 1),
7709 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] =
7710 NLA_POLICY_MIN(NLA_U16, 1),
7711 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] =
7712 NLA_POLICY_MIN(NLA_U16, 1),
7713 [NL80211_MESHCONF_HWMP_ROOTMODE] = NLA_POLICY_MAX(NLA_U8, 4),
7714 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] =
7715 NLA_POLICY_MIN(NLA_U16, 1),
7716 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = NLA_POLICY_MAX(NLA_U8, 1),
7717 [NL80211_MESHCONF_FORWARDING] = NLA_POLICY_MAX(NLA_U8, 1),
7718 [NL80211_MESHCONF_RSSI_THRESHOLD] =
7719 NLA_POLICY_RANGE(NLA_S32, -255, 0),
7720 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
7721 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
7722 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] =
7723 NLA_POLICY_MIN(NLA_U16, 1),
7724 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] =
7725 NLA_POLICY_MIN(NLA_U16, 1),
7726 [NL80211_MESHCONF_POWER_MODE] =
7727 NLA_POLICY_RANGE(NLA_U32,
7728 NL80211_MESH_POWER_ACTIVE,
7729 NL80211_MESH_POWER_MAX),
7730 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
7731 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
7732 [NL80211_MESHCONF_CONNECTED_TO_GATE] = NLA_POLICY_RANGE(NLA_U8, 0, 1),
7733 [NL80211_MESHCONF_NOLEARN] = NLA_POLICY_RANGE(NLA_U8, 0, 1),
7734 [NL80211_MESHCONF_CONNECTED_TO_AS] = NLA_POLICY_RANGE(NLA_U8, 0, 1),
7735};
7736
7737static const struct nla_policy
7738 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
7739 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
7740 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
7741 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
7742 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
7743 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
7744 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
7745 [NL80211_MESH_SETUP_IE] =
7746 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
7747 IEEE80211_MAX_DATA_LEN),
7748 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
7749};
7750
7751static int nl80211_parse_mesh_config(struct genl_info *info,
7752 struct mesh_config *cfg,
7753 u32 *mask_out)
7754{
7755 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
7756 u32 mask = 0;
7757 u16 ht_opmode;
7758
7759#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, mask, attr, fn) \
7760do { \
7761 if (tb[attr]) { \
7762 cfg->param = fn(tb[attr]); \
7763 mask |= BIT((attr) - 1); \
7764 } \
7765} while (0)
7766
7767 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
7768 return -EINVAL;
7769 if (nla_parse_nested_deprecated(tb, NL80211_MESHCONF_ATTR_MAX, info->attrs[NL80211_ATTR_MESH_CONFIG], nl80211_meshconf_params_policy, info->extack))
7770 return -EINVAL;
7771
7772
7773
7774 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
7775
7776
7777 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, mask,
7778 NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
7779 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, mask,
7780 NL80211_MESHCONF_CONFIRM_TIMEOUT,
7781 nla_get_u16);
7782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, mask,
7783 NL80211_MESHCONF_HOLDING_TIMEOUT,
7784 nla_get_u16);
7785 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, mask,
7786 NL80211_MESHCONF_MAX_PEER_LINKS,
7787 nla_get_u16);
7788 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, mask,
7789 NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
7790 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, mask,
7791 NL80211_MESHCONF_TTL, nla_get_u8);
7792 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, mask,
7793 NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
7794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, mask,
7795 NL80211_MESHCONF_AUTO_OPEN_PLINKS,
7796 nla_get_u8);
7797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
7798 mask,
7799 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
7800 nla_get_u32);
7801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, mask,
7802 NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
7803 nla_get_u8);
7804 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, mask,
7805 NL80211_MESHCONF_PATH_REFRESH_TIME,
7806 nla_get_u32);
7807 if (mask & BIT(NL80211_MESHCONF_PATH_REFRESH_TIME) &&
7808 (cfg->path_refresh_time < 1 || cfg->path_refresh_time > 65535))
7809 return -EINVAL;
7810 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, mask,
7811 NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
7812 nla_get_u16);
7813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
7814 mask,
7815 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
7816 nla_get_u32);
7817 if (mask & BIT(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT) &&
7818 (cfg->dot11MeshHWMPactivePathTimeout < 1 ||
7819 cfg->dot11MeshHWMPactivePathTimeout > 65535))
7820 return -EINVAL;
7821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, mask,
7822 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
7823 nla_get_u16);
7824 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, mask,
7825 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
7826 nla_get_u16);
7827 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
7828 dot11MeshHWMPnetDiameterTraversalTime, mask,
7829 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
7830 nla_get_u16);
7831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
7832 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
7833 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
7834 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
7835 nla_get_u16);
7836 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshGateAnnouncementProtocol,
7837 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
7838 nla_get_u8);
7839 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, mask,
7840 NL80211_MESHCONF_FORWARDING, nla_get_u8);
7841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, mask,
7842 NL80211_MESHCONF_RSSI_THRESHOLD,
7843 nla_get_s32);
7844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToMeshGate, mask,
7845 NL80211_MESHCONF_CONNECTED_TO_GATE,
7846 nla_get_u8);
7847 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToAuthServer, mask,
7848 NL80211_MESHCONF_CONNECTED_TO_AS,
7849 nla_get_u8);
7850
7851
7852
7853
7854 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
7855 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
7856
7857 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
7858 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
7859 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
7860 return -EINVAL;
7861
7862
7863 ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
7864
7865 cfg->ht_opmode = ht_opmode;
7866 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
7867 }
7868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
7869 dot11MeshHWMPactivePathToRootTimeout, mask,
7870 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
7871 nla_get_u32);
7872 if (mask & BIT(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT) &&
7873 (cfg->dot11MeshHWMPactivePathToRootTimeout < 1 ||
7874 cfg->dot11MeshHWMPactivePathToRootTimeout > 65535))
7875 return -EINVAL;
7876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, mask,
7877 NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
7878 nla_get_u16);
7879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPconfirmationInterval,
7880 mask,
7881 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
7882 nla_get_u16);
7883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, mask,
7884 NL80211_MESHCONF_POWER_MODE, nla_get_u32);
7885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, mask,
7886 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
7887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, mask,
7888 NL80211_MESHCONF_PLINK_TIMEOUT, nla_get_u32);
7889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNolearn, mask,
7890 NL80211_MESHCONF_NOLEARN, nla_get_u8);
7891 if (mask_out)
7892 *mask_out = mask;
7893
7894 return 0;
7895
7896#undef FILL_IN_MESH_PARAM_IF_SET
7897}
7898
7899static int nl80211_parse_mesh_setup(struct genl_info *info,
7900 struct mesh_setup *setup)
7901{
7902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7903 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
7904
7905 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
7906 return -EINVAL;
7907 if (nla_parse_nested_deprecated(tb, NL80211_MESH_SETUP_ATTR_MAX, info->attrs[NL80211_ATTR_MESH_SETUP], nl80211_mesh_setup_params_policy, info->extack))
7908 return -EINVAL;
7909
7910 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
7911 setup->sync_method =
7912 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
7913 IEEE80211_SYNC_METHOD_VENDOR :
7914 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
7915
7916 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
7917 setup->path_sel_proto =
7918 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
7919 IEEE80211_PATH_PROTOCOL_VENDOR :
7920 IEEE80211_PATH_PROTOCOL_HWMP;
7921
7922 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
7923 setup->path_metric =
7924 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
7925 IEEE80211_PATH_METRIC_VENDOR :
7926 IEEE80211_PATH_METRIC_AIRTIME;
7927
7928 if (tb[NL80211_MESH_SETUP_IE]) {
7929 struct nlattr *ieattr =
7930 tb[NL80211_MESH_SETUP_IE];
7931 setup->ie = nla_data(ieattr);
7932 setup->ie_len = nla_len(ieattr);
7933 }
7934 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
7935 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
7936 return -EINVAL;
7937 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
7938 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
7939 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
7940 if (setup->is_secure)
7941 setup->user_mpm = true;
7942
7943 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
7944 if (!setup->user_mpm)
7945 return -EINVAL;
7946 setup->auth_id =
7947 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
7948 }
7949
7950 return 0;
7951}
7952
7953static int nl80211_update_mesh_config(struct sk_buff *skb,
7954 struct genl_info *info)
7955{
7956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7957 struct net_device *dev = info->user_ptr[1];
7958 struct wireless_dev *wdev = dev->ieee80211_ptr;
7959 struct mesh_config cfg;
7960 u32 mask;
7961 int err;
7962
7963 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
7964 return -EOPNOTSUPP;
7965
7966 if (!rdev->ops->update_mesh_config)
7967 return -EOPNOTSUPP;
7968
7969 err = nl80211_parse_mesh_config(info, &cfg, &mask);
7970 if (err)
7971 return err;
7972
7973 wdev_lock(wdev);
7974 if (!wdev->mesh_id_len)
7975 err = -ENOLINK;
7976
7977 if (!err)
7978 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
7979
7980 wdev_unlock(wdev);
7981
7982 return err;
7983}
7984
7985static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
7986 struct sk_buff *msg)
7987{
7988 struct nlattr *nl_reg_rules;
7989 unsigned int i;
7990
7991 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
7992 (regdom->dfs_region &&
7993 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
7994 goto nla_put_failure;
7995
7996 nl_reg_rules = nla_nest_start_noflag(msg, NL80211_ATTR_REG_RULES);
7997 if (!nl_reg_rules)
7998 goto nla_put_failure;
7999
8000 for (i = 0; i < regdom->n_reg_rules; i++) {
8001 struct nlattr *nl_reg_rule;
8002 const struct ieee80211_reg_rule *reg_rule;
8003 const struct ieee80211_freq_range *freq_range;
8004 const struct ieee80211_power_rule *power_rule;
8005 unsigned int max_bandwidth_khz;
8006
8007 reg_rule = ®dom->reg_rules[i];
8008 freq_range = ®_rule->freq_range;
8009 power_rule = ®_rule->power_rule;
8010
8011 nl_reg_rule = nla_nest_start_noflag(msg, i);
8012 if (!nl_reg_rule)
8013 goto nla_put_failure;
8014
8015 max_bandwidth_khz = freq_range->max_bandwidth_khz;
8016 if (!max_bandwidth_khz)
8017 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
8018 reg_rule);
8019
8020 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
8021 reg_rule->flags) ||
8022 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
8023 freq_range->start_freq_khz) ||
8024 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
8025 freq_range->end_freq_khz) ||
8026 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
8027 max_bandwidth_khz) ||
8028 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
8029 power_rule->max_antenna_gain) ||
8030 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
8031 power_rule->max_eirp) ||
8032 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
8033 reg_rule->dfs_cac_ms))
8034 goto nla_put_failure;
8035
8036 nla_nest_end(msg, nl_reg_rule);
8037 }
8038
8039 nla_nest_end(msg, nl_reg_rules);
8040 return 0;
8041
8042nla_put_failure:
8043 return -EMSGSIZE;
8044}
8045
8046static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
8047{
8048 const struct ieee80211_regdomain *regdom = NULL;
8049 struct cfg80211_registered_device *rdev;
8050 struct wiphy *wiphy = NULL;
8051 struct sk_buff *msg;
8052 int err = -EMSGSIZE;
8053 void *hdr;
8054
8055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8056 if (!msg)
8057 return -ENOBUFS;
8058
8059 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8060 NL80211_CMD_GET_REG);
8061 if (!hdr)
8062 goto put_failure;
8063
8064 rtnl_lock();
8065
8066 if (info->attrs[NL80211_ATTR_WIPHY]) {
8067 bool self_managed;
8068
8069 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8070 if (IS_ERR(rdev)) {
8071 err = PTR_ERR(rdev);
8072 goto nla_put_failure;
8073 }
8074
8075 wiphy = &rdev->wiphy;
8076 self_managed = wiphy->regulatory_flags &
8077 REGULATORY_WIPHY_SELF_MANAGED;
8078
8079 rcu_read_lock();
8080
8081 regdom = get_wiphy_regdom(wiphy);
8082
8083
8084 if (WARN_ON(!regdom && self_managed)) {
8085 err = -EINVAL;
8086 goto nla_put_failure_rcu;
8087 }
8088
8089 if (regdom &&
8090 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8091 goto nla_put_failure_rcu;
8092 } else {
8093 rcu_read_lock();
8094 }
8095
8096 if (!wiphy && reg_last_request_cell_base() &&
8097 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
8098 NL80211_USER_REG_HINT_CELL_BASE))
8099 goto nla_put_failure_rcu;
8100
8101 if (!regdom)
8102 regdom = rcu_dereference(cfg80211_regdomain);
8103
8104 if (nl80211_put_regdom(regdom, msg))
8105 goto nla_put_failure_rcu;
8106
8107 rcu_read_unlock();
8108
8109 genlmsg_end(msg, hdr);
8110 rtnl_unlock();
8111 return genlmsg_reply(msg, info);
8112
8113nla_put_failure_rcu:
8114 rcu_read_unlock();
8115nla_put_failure:
8116 rtnl_unlock();
8117put_failure:
8118 nlmsg_free(msg);
8119 return err;
8120}
8121
8122static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
8123 u32 seq, int flags, struct wiphy *wiphy,
8124 const struct ieee80211_regdomain *regdom)
8125{
8126 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
8127 NL80211_CMD_GET_REG);
8128
8129 if (!hdr)
8130 return -1;
8131
8132 genl_dump_check_consistent(cb, hdr);
8133
8134 if (nl80211_put_regdom(regdom, msg))
8135 goto nla_put_failure;
8136
8137 if (!wiphy && reg_last_request_cell_base() &&
8138 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
8139 NL80211_USER_REG_HINT_CELL_BASE))
8140 goto nla_put_failure;
8141
8142 if (wiphy &&
8143 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8144 goto nla_put_failure;
8145
8146 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
8147 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
8148 goto nla_put_failure;
8149
8150 genlmsg_end(msg, hdr);
8151 return 0;
8152
8153nla_put_failure:
8154 genlmsg_cancel(msg, hdr);
8155 return -EMSGSIZE;
8156}
8157
8158static int nl80211_get_reg_dump(struct sk_buff *skb,
8159 struct netlink_callback *cb)
8160{
8161 const struct ieee80211_regdomain *regdom = NULL;
8162 struct cfg80211_registered_device *rdev;
8163 int err, reg_idx, start = cb->args[2];
8164
8165 rcu_read_lock();
8166
8167 if (cfg80211_regdomain && start == 0) {
8168 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
8169 NLM_F_MULTI, NULL,
8170 rcu_dereference(cfg80211_regdomain));
8171 if (err < 0)
8172 goto out_err;
8173 }
8174
8175
8176 reg_idx = 1;
8177 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8178 regdom = get_wiphy_regdom(&rdev->wiphy);
8179 if (!regdom)
8180 continue;
8181
8182 if (++reg_idx <= start)
8183 continue;
8184
8185 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
8186 NLM_F_MULTI, &rdev->wiphy, regdom);
8187 if (err < 0) {
8188 reg_idx--;
8189 break;
8190 }
8191 }
8192
8193 cb->args[2] = reg_idx;
8194 err = skb->len;
8195out_err:
8196 rcu_read_unlock();
8197 return err;
8198}
8199
8200#ifdef CONFIG_CFG80211_CRDA_SUPPORT
8201static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
8202 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
8203 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
8204 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
8205 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
8206 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
8207 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
8208 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
8209};
8210
8211static int parse_reg_rule(struct nlattr *tb[],
8212 struct ieee80211_reg_rule *reg_rule)
8213{
8214 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
8215 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
8216
8217 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
8218 return -EINVAL;
8219 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
8220 return -EINVAL;
8221 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
8222 return -EINVAL;
8223 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
8224 return -EINVAL;
8225 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
8226 return -EINVAL;
8227
8228 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
8229
8230 freq_range->start_freq_khz =
8231 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
8232 freq_range->end_freq_khz =
8233 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
8234 freq_range->max_bandwidth_khz =
8235 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
8236
8237 power_rule->max_eirp =
8238 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
8239
8240 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
8241 power_rule->max_antenna_gain =
8242 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
8243
8244 if (tb[NL80211_ATTR_DFS_CAC_TIME])
8245 reg_rule->dfs_cac_ms =
8246 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
8247
8248 return 0;
8249}
8250
8251static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
8252{
8253 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
8254 struct nlattr *nl_reg_rule;
8255 char *alpha2;
8256 int rem_reg_rules, r;
8257 u32 num_rules = 0, rule_idx = 0;
8258 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
8259 struct ieee80211_regdomain *rd;
8260
8261 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
8262 return -EINVAL;
8263
8264 if (!info->attrs[NL80211_ATTR_REG_RULES])
8265 return -EINVAL;
8266
8267 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
8268
8269 if (info->attrs[NL80211_ATTR_DFS_REGION])
8270 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
8271
8272 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
8273 rem_reg_rules) {
8274 num_rules++;
8275 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
8276 return -EINVAL;
8277 }
8278
8279 rtnl_lock();
8280 if (!reg_is_valid_request(alpha2)) {
8281 r = -EINVAL;
8282 goto out;
8283 }
8284
8285 rd = kzalloc(struct_size(rd, reg_rules, num_rules), GFP_KERNEL);
8286 if (!rd) {
8287 r = -ENOMEM;
8288 goto out;
8289 }
8290
8291 rd->n_reg_rules = num_rules;
8292 rd->alpha2[0] = alpha2[0];
8293 rd->alpha2[1] = alpha2[1];
8294
8295
8296
8297
8298
8299 if (reg_supported_dfs_region(dfs_region))
8300 rd->dfs_region = dfs_region;
8301
8302 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
8303 rem_reg_rules) {
8304 r = nla_parse_nested_deprecated(tb, NL80211_REG_RULE_ATTR_MAX,
8305 nl_reg_rule, reg_rule_policy,
8306 info->extack);
8307 if (r)
8308 goto bad_reg;
8309 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
8310 if (r)
8311 goto bad_reg;
8312
8313 rule_idx++;
8314
8315 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
8316 r = -EINVAL;
8317 goto bad_reg;
8318 }
8319 }
8320
8321 r = set_regdom(rd, REGD_SOURCE_CRDA);
8322
8323 rd = NULL;
8324 bad_reg:
8325 kfree(rd);
8326 out:
8327 rtnl_unlock();
8328 return r;
8329}
8330#endif
8331
8332static int validate_scan_freqs(struct nlattr *freqs)
8333{
8334 struct nlattr *attr1, *attr2;
8335 int n_channels = 0, tmp1, tmp2;
8336
8337 nla_for_each_nested(attr1, freqs, tmp1)
8338 if (nla_len(attr1) != sizeof(u32))
8339 return 0;
8340
8341 nla_for_each_nested(attr1, freqs, tmp1) {
8342 n_channels++;
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352 nla_for_each_nested(attr2, freqs, tmp2)
8353 if (attr1 != attr2 &&
8354 nla_get_u32(attr1) == nla_get_u32(attr2))
8355 return 0;
8356 }
8357
8358 return n_channels;
8359}
8360
8361static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
8362{
8363 return b < NUM_NL80211_BANDS && wiphy->bands[b];
8364}
8365
8366static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
8367 struct cfg80211_bss_selection *bss_select)
8368{
8369 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
8370 struct nlattr *nest;
8371 int err;
8372 bool found = false;
8373 int i;
8374
8375
8376 nest = nla_data(nla);
8377 if (!nla_ok(nest, nla_len(nest)))
8378 return -EINVAL;
8379
8380 err = nla_parse_nested_deprecated(attr, NL80211_BSS_SELECT_ATTR_MAX,
8381 nest, nl80211_bss_select_policy,
8382 NULL);
8383 if (err)
8384 return err;
8385
8386
8387 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
8388 if (attr[i]) {
8389 if (found)
8390 return -EINVAL;
8391 found = true;
8392 }
8393 }
8394
8395 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
8396
8397 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
8398 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
8399
8400 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
8401 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
8402 bss_select->param.band_pref =
8403 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
8404 if (!is_band_valid(wiphy, bss_select->param.band_pref))
8405 return -EINVAL;
8406 }
8407
8408 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
8409 struct nl80211_bss_select_rssi_adjust *adj_param;
8410
8411 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
8412 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
8413 bss_select->param.adjust.band = adj_param->band;
8414 bss_select->param.adjust.delta = adj_param->delta;
8415 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
8416 return -EINVAL;
8417 }
8418
8419
8420 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
8421 return -EINVAL;
8422
8423 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
8424 return -EINVAL;
8425
8426 return 0;
8427}
8428
8429int nl80211_parse_random_mac(struct nlattr **attrs,
8430 u8 *mac_addr, u8 *mac_addr_mask)
8431{
8432 int i;
8433
8434 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
8435 eth_zero_addr(mac_addr);
8436 eth_zero_addr(mac_addr_mask);
8437 mac_addr[0] = 0x2;
8438 mac_addr_mask[0] = 0x3;
8439
8440 return 0;
8441 }
8442
8443
8444 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
8445 return -EINVAL;
8446
8447 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
8448 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
8449
8450
8451 if (!is_multicast_ether_addr(mac_addr_mask) ||
8452 is_multicast_ether_addr(mac_addr))
8453 return -EINVAL;
8454
8455
8456
8457
8458
8459
8460 for (i = 0; i < ETH_ALEN; i++)
8461 mac_addr[i] &= mac_addr_mask[i];
8462
8463 return 0;
8464}
8465
8466static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
8467{
8468 ASSERT_WDEV_LOCK(wdev);
8469
8470 if (!cfg80211_beaconing_iface_active(wdev))
8471 return true;
8472
8473 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
8474 return true;
8475
8476 return regulatory_pre_cac_allowed(wdev->wiphy);
8477}
8478
8479static bool nl80211_check_scan_feat(struct wiphy *wiphy, u32 flags, u32 flag,
8480 enum nl80211_ext_feature_index feat)
8481{
8482 if (!(flags & flag))
8483 return true;
8484 if (wiphy_ext_feature_isset(wiphy, feat))
8485 return true;
8486 return false;
8487}
8488
8489static int
8490nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
8491 void *request, struct nlattr **attrs,
8492 bool is_sched_scan)
8493{
8494 u8 *mac_addr, *mac_addr_mask;
8495 u32 *flags;
8496 enum nl80211_feature_flags randomness_flag;
8497
8498 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
8499 return 0;
8500
8501 if (is_sched_scan) {
8502 struct cfg80211_sched_scan_request *req = request;
8503
8504 randomness_flag = wdev ?
8505 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
8506 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
8507 flags = &req->flags;
8508 mac_addr = req->mac_addr;
8509 mac_addr_mask = req->mac_addr_mask;
8510 } else {
8511 struct cfg80211_scan_request *req = request;
8512
8513 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
8514 flags = &req->flags;
8515 mac_addr = req->mac_addr;
8516 mac_addr_mask = req->mac_addr_mask;
8517 }
8518
8519 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
8520
8521 if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
8522 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
8523 !nl80211_check_scan_feat(wiphy, *flags,
8524 NL80211_SCAN_FLAG_LOW_SPAN,
8525 NL80211_EXT_FEATURE_LOW_SPAN_SCAN) ||
8526 !nl80211_check_scan_feat(wiphy, *flags,
8527 NL80211_SCAN_FLAG_LOW_POWER,
8528 NL80211_EXT_FEATURE_LOW_POWER_SCAN) ||
8529 !nl80211_check_scan_feat(wiphy, *flags,
8530 NL80211_SCAN_FLAG_HIGH_ACCURACY,
8531 NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN) ||
8532 !nl80211_check_scan_feat(wiphy, *flags,
8533 NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME,
8534 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) ||
8535 !nl80211_check_scan_feat(wiphy, *flags,
8536 NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP,
8537 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP) ||
8538 !nl80211_check_scan_feat(wiphy, *flags,
8539 NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION,
8540 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) ||
8541 !nl80211_check_scan_feat(wiphy, *flags,
8542 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE,
8543 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE) ||
8544 !nl80211_check_scan_feat(wiphy, *flags,
8545 NL80211_SCAN_FLAG_RANDOM_SN,
8546 NL80211_EXT_FEATURE_SCAN_RANDOM_SN) ||
8547 !nl80211_check_scan_feat(wiphy, *flags,
8548 NL80211_SCAN_FLAG_MIN_PREQ_CONTENT,
8549 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT))
8550 return -EOPNOTSUPP;
8551
8552 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
8553 int err;
8554
8555 if (!(wiphy->features & randomness_flag) ||
8556 (wdev && wdev->current_bss))
8557 return -EOPNOTSUPP;
8558
8559 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
8560 if (err)
8561 return err;
8562 }
8563
8564 return 0;
8565}
8566
8567static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
8568{
8569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8570 struct wireless_dev *wdev = info->user_ptr[1];
8571 struct cfg80211_scan_request *request;
8572 struct nlattr *scan_freqs = NULL;
8573 bool scan_freqs_khz = false;
8574 struct nlattr *attr;
8575 struct wiphy *wiphy;
8576 int err, tmp, n_ssids = 0, n_channels, i;
8577 size_t ie_len;
8578
8579 wiphy = &rdev->wiphy;
8580
8581 if (wdev->iftype == NL80211_IFTYPE_NAN)
8582 return -EOPNOTSUPP;
8583
8584 if (!rdev->ops->scan)
8585 return -EOPNOTSUPP;
8586
8587 if (rdev->scan_req || rdev->scan_msg)
8588 return -EBUSY;
8589
8590 if (info->attrs[NL80211_ATTR_SCAN_FREQ_KHZ]) {
8591 if (!wiphy_ext_feature_isset(wiphy,
8592 NL80211_EXT_FEATURE_SCAN_FREQ_KHZ))
8593 return -EOPNOTSUPP;
8594 scan_freqs = info->attrs[NL80211_ATTR_SCAN_FREQ_KHZ];
8595 scan_freqs_khz = true;
8596 } else if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES])
8597 scan_freqs = info->attrs[NL80211_ATTR_SCAN_FREQUENCIES];
8598
8599 if (scan_freqs) {
8600 n_channels = validate_scan_freqs(scan_freqs);
8601 if (!n_channels)
8602 return -EINVAL;
8603 } else {
8604 n_channels = ieee80211_get_num_supported_channels(wiphy);
8605 }
8606
8607 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
8608 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
8609 n_ssids++;
8610
8611 if (n_ssids > wiphy->max_scan_ssids)
8612 return -EINVAL;
8613
8614 if (info->attrs[NL80211_ATTR_IE])
8615 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8616 else
8617 ie_len = 0;
8618
8619 if (ie_len > wiphy->max_scan_ie_len)
8620 return -EINVAL;
8621
8622 request = kzalloc(sizeof(*request)
8623 + sizeof(*request->ssids) * n_ssids
8624 + sizeof(*request->channels) * n_channels
8625 + ie_len, GFP_KERNEL);
8626 if (!request)
8627 return -ENOMEM;
8628
8629 if (n_ssids)
8630 request->ssids = (void *)&request->channels[n_channels];
8631 request->n_ssids = n_ssids;
8632 if (ie_len) {
8633 if (n_ssids)
8634 request->ie = (void *)(request->ssids + n_ssids);
8635 else
8636 request->ie = (void *)(request->channels + n_channels);
8637 }
8638
8639 i = 0;
8640 if (scan_freqs) {
8641
8642 nla_for_each_nested(attr, scan_freqs, tmp) {
8643 struct ieee80211_channel *chan;
8644 int freq = nla_get_u32(attr);
8645
8646 if (!scan_freqs_khz)
8647 freq = MHZ_TO_KHZ(freq);
8648
8649 chan = ieee80211_get_channel_khz(wiphy, freq);
8650 if (!chan) {
8651 err = -EINVAL;
8652 goto out_free;
8653 }
8654
8655
8656 if (chan->flags & IEEE80211_CHAN_DISABLED)
8657 continue;
8658
8659 request->channels[i] = chan;
8660 i++;
8661 }
8662 } else {
8663 enum nl80211_band band;
8664
8665
8666 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8667 int j;
8668
8669 if (!wiphy->bands[band])
8670 continue;
8671 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
8672 struct ieee80211_channel *chan;
8673
8674 chan = &wiphy->bands[band]->channels[j];
8675
8676 if (chan->flags & IEEE80211_CHAN_DISABLED)
8677 continue;
8678
8679 request->channels[i] = chan;
8680 i++;
8681 }
8682 }
8683 }
8684
8685 if (!i) {
8686 err = -EINVAL;
8687 goto out_free;
8688 }
8689
8690 request->n_channels = i;
8691
8692 wdev_lock(wdev);
8693 if (!cfg80211_off_channel_oper_allowed(wdev)) {
8694 struct ieee80211_channel *chan;
8695
8696 if (request->n_channels != 1) {
8697 wdev_unlock(wdev);
8698 err = -EBUSY;
8699 goto out_free;
8700 }
8701
8702 chan = request->channels[0];
8703 if (chan->center_freq != wdev->chandef.chan->center_freq) {
8704 wdev_unlock(wdev);
8705 err = -EBUSY;
8706 goto out_free;
8707 }
8708 }
8709 wdev_unlock(wdev);
8710
8711 i = 0;
8712 if (n_ssids) {
8713 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
8714 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
8715 err = -EINVAL;
8716 goto out_free;
8717 }
8718 request->ssids[i].ssid_len = nla_len(attr);
8719 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
8720 i++;
8721 }
8722 }
8723
8724 if (info->attrs[NL80211_ATTR_IE]) {
8725 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8726 memcpy((void *)request->ie,
8727 nla_data(info->attrs[NL80211_ATTR_IE]),
8728 request->ie_len);
8729 }
8730
8731 for (i = 0; i < NUM_NL80211_BANDS; i++)
8732 if (wiphy->bands[i])
8733 request->rates[i] =
8734 (1 << wiphy->bands[i]->n_bitrates) - 1;
8735
8736 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
8737 nla_for_each_nested(attr,
8738 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
8739 tmp) {
8740 enum nl80211_band band = nla_type(attr);
8741
8742 if (band < 0 || band >= NUM_NL80211_BANDS) {
8743 err = -EINVAL;
8744 goto out_free;
8745 }
8746
8747 if (!wiphy->bands[band])
8748 continue;
8749
8750 err = ieee80211_get_ratemask(wiphy->bands[band],
8751 nla_data(attr),
8752 nla_len(attr),
8753 &request->rates[band]);
8754 if (err)
8755 goto out_free;
8756 }
8757 }
8758
8759 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
8760 request->duration =
8761 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
8762 request->duration_mandatory =
8763 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
8764 }
8765
8766 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
8767 false);
8768 if (err)
8769 goto out_free;
8770
8771 request->no_cck =
8772 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783 if (info->attrs[NL80211_ATTR_BSSID])
8784 memcpy(request->bssid,
8785 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
8786 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
8787 info->attrs[NL80211_ATTR_MAC])
8788 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
8789 ETH_ALEN);
8790 else
8791 eth_broadcast_addr(request->bssid);
8792
8793 request->wdev = wdev;
8794 request->wiphy = &rdev->wiphy;
8795 request->scan_start = jiffies;
8796
8797 rdev->scan_req = request;
8798 err = cfg80211_scan(rdev);
8799
8800 if (err)
8801 goto out_free;
8802
8803 nl80211_send_scan_start(rdev, wdev);
8804 dev_hold(wdev->netdev);
8805
8806 return 0;
8807
8808 out_free:
8809 rdev->scan_req = NULL;
8810 kfree(request);
8811
8812 return err;
8813}
8814
8815static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
8816{
8817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8818 struct wireless_dev *wdev = info->user_ptr[1];
8819
8820 if (!rdev->ops->abort_scan)
8821 return -EOPNOTSUPP;
8822
8823 if (rdev->scan_msg)
8824 return 0;
8825
8826 if (!rdev->scan_req)
8827 return -ENOENT;
8828
8829 rdev_abort_scan(rdev, wdev);
8830 return 0;
8831}
8832
8833static int
8834nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
8835 struct cfg80211_sched_scan_request *request,
8836 struct nlattr **attrs)
8837{
8838 int tmp, err, i = 0;
8839 struct nlattr *attr;
8840
8841 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
8842 u32 interval;
8843
8844
8845
8846
8847
8848
8849
8850 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
8851 if (!interval)
8852 return -EINVAL;
8853
8854 request->scan_plans[0].interval =
8855 DIV_ROUND_UP(interval, MSEC_PER_SEC);
8856 if (!request->scan_plans[0].interval)
8857 return -EINVAL;
8858
8859 if (request->scan_plans[0].interval >
8860 wiphy->max_sched_scan_plan_interval)
8861 request->scan_plans[0].interval =
8862 wiphy->max_sched_scan_plan_interval;
8863
8864 return 0;
8865 }
8866
8867 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
8868 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
8869
8870 if (WARN_ON(i >= n_plans))
8871 return -EINVAL;
8872
8873 err = nla_parse_nested_deprecated(plan,
8874 NL80211_SCHED_SCAN_PLAN_MAX,
8875 attr, nl80211_plan_policy,
8876 NULL);
8877 if (err)
8878 return err;
8879
8880 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
8881 return -EINVAL;
8882
8883 request->scan_plans[i].interval =
8884 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
8885 if (!request->scan_plans[i].interval ||
8886 request->scan_plans[i].interval >
8887 wiphy->max_sched_scan_plan_interval)
8888 return -EINVAL;
8889
8890 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
8891 request->scan_plans[i].iterations =
8892 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
8893 if (!request->scan_plans[i].iterations ||
8894 (request->scan_plans[i].iterations >
8895 wiphy->max_sched_scan_plan_iterations))
8896 return -EINVAL;
8897 } else if (i < n_plans - 1) {
8898
8899
8900
8901
8902 return -EINVAL;
8903 }
8904
8905 i++;
8906 }
8907
8908
8909
8910
8911
8912 if (request->scan_plans[n_plans - 1].iterations)
8913 return -EINVAL;
8914
8915 return 0;
8916}
8917
8918static int
8919nl80211_parse_sched_scan_per_band_rssi(struct wiphy *wiphy,
8920 struct cfg80211_match_set *match_sets,
8921 struct nlattr *tb_band_rssi,
8922 s32 rssi_thold)
8923{
8924 struct nlattr *attr;
8925 int i, tmp, ret = 0;
8926
8927 if (!wiphy_ext_feature_isset(wiphy,
8928 NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD)) {
8929 if (tb_band_rssi)
8930 ret = -EOPNOTSUPP;
8931 else
8932 for (i = 0; i < NUM_NL80211_BANDS; i++)
8933 match_sets->per_band_rssi_thold[i] =
8934 NL80211_SCAN_RSSI_THOLD_OFF;
8935 return ret;
8936 }
8937
8938 for (i = 0; i < NUM_NL80211_BANDS; i++)
8939 match_sets->per_band_rssi_thold[i] = rssi_thold;
8940
8941 nla_for_each_nested(attr, tb_band_rssi, tmp) {
8942 enum nl80211_band band = nla_type(attr);
8943
8944 if (band < 0 || band >= NUM_NL80211_BANDS)
8945 return -EINVAL;
8946
8947 match_sets->per_band_rssi_thold[band] = nla_get_s32(attr);
8948 }
8949
8950 return 0;
8951}
8952
8953static struct cfg80211_sched_scan_request *
8954nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
8955 struct nlattr **attrs, int max_match_sets)
8956{
8957 struct cfg80211_sched_scan_request *request;
8958 struct nlattr *attr;
8959 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
8960 enum nl80211_band band;
8961 size_t ie_len;
8962 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
8963 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
8964
8965 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
8966 n_channels = validate_scan_freqs(
8967 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
8968 if (!n_channels)
8969 return ERR_PTR(-EINVAL);
8970 } else {
8971 n_channels = ieee80211_get_num_supported_channels(wiphy);
8972 }
8973
8974 if (attrs[NL80211_ATTR_SCAN_SSIDS])
8975 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
8976 tmp)
8977 n_ssids++;
8978
8979 if (n_ssids > wiphy->max_sched_scan_ssids)
8980 return ERR_PTR(-EINVAL);
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
8992 nla_for_each_nested(attr,
8993 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
8994 tmp) {
8995 struct nlattr *rssi;
8996
8997 err = nla_parse_nested_deprecated(tb,
8998 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
8999 attr,
9000 nl80211_match_policy,
9001 NULL);
9002 if (err)
9003 return ERR_PTR(err);
9004
9005
9006 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
9007 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
9008 return ERR_PTR(-EINVAL);
9009
9010
9011 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
9012 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
9013 n_match_sets++;
9014 continue;
9015 }
9016 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
9017 if (rssi)
9018 default_match_rssi = nla_get_s32(rssi);
9019 }
9020 }
9021
9022
9023 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
9024 n_match_sets = 1;
9025
9026 if (n_match_sets > max_match_sets)
9027 return ERR_PTR(-EINVAL);
9028
9029 if (attrs[NL80211_ATTR_IE])
9030 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
9031 else
9032 ie_len = 0;
9033
9034 if (ie_len > wiphy->max_sched_scan_ie_len)
9035 return ERR_PTR(-EINVAL);
9036
9037 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
9038
9039
9040
9041
9042 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
9043 return ERR_PTR(-EINVAL);
9044
9045 nla_for_each_nested(attr,
9046 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
9047 n_plans++;
9048 } else {
9049
9050
9051
9052
9053
9054
9055 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
9056 return ERR_PTR(-EINVAL);
9057
9058 n_plans = 1;
9059 }
9060
9061 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
9062 return ERR_PTR(-EINVAL);
9063
9064 if (!wiphy_ext_feature_isset(
9065 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
9066 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
9067 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
9068 return ERR_PTR(-EINVAL);
9069
9070 request = kzalloc(sizeof(*request)
9071 + sizeof(*request->ssids) * n_ssids
9072 + sizeof(*request->match_sets) * n_match_sets
9073 + sizeof(*request->scan_plans) * n_plans
9074 + sizeof(*request->channels) * n_channels
9075 + ie_len, GFP_KERNEL);
9076 if (!request)
9077 return ERR_PTR(-ENOMEM);
9078
9079 if (n_ssids)
9080 request->ssids = (void *)&request->channels[n_channels];
9081 request->n_ssids = n_ssids;
9082 if (ie_len) {
9083 if (n_ssids)
9084 request->ie = (void *)(request->ssids + n_ssids);
9085 else
9086 request->ie = (void *)(request->channels + n_channels);
9087 }
9088
9089 if (n_match_sets) {
9090 if (request->ie)
9091 request->match_sets = (void *)(request->ie + ie_len);
9092 else if (n_ssids)
9093 request->match_sets =
9094 (void *)(request->ssids + n_ssids);
9095 else
9096 request->match_sets =
9097 (void *)(request->channels + n_channels);
9098 }
9099 request->n_match_sets = n_match_sets;
9100
9101 if (n_match_sets)
9102 request->scan_plans = (void *)(request->match_sets +
9103 n_match_sets);
9104 else if (request->ie)
9105 request->scan_plans = (void *)(request->ie + ie_len);
9106 else if (n_ssids)
9107 request->scan_plans = (void *)(request->ssids + n_ssids);
9108 else
9109 request->scan_plans = (void *)(request->channels + n_channels);
9110
9111 request->n_scan_plans = n_plans;
9112
9113 i = 0;
9114 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
9115
9116 nla_for_each_nested(attr,
9117 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
9118 tmp) {
9119 struct ieee80211_channel *chan;
9120
9121 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
9122
9123 if (!chan) {
9124 err = -EINVAL;
9125 goto out_free;
9126 }
9127
9128
9129 if (chan->flags & IEEE80211_CHAN_DISABLED)
9130 continue;
9131
9132 request->channels[i] = chan;
9133 i++;
9134 }
9135 } else {
9136
9137 for (band = 0; band < NUM_NL80211_BANDS; band++) {
9138 int j;
9139
9140 if (!wiphy->bands[band])
9141 continue;
9142 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
9143 struct ieee80211_channel *chan;
9144
9145 chan = &wiphy->bands[band]->channels[j];
9146
9147 if (chan->flags & IEEE80211_CHAN_DISABLED)
9148 continue;
9149
9150 request->channels[i] = chan;
9151 i++;
9152 }
9153 }
9154 }
9155
9156 if (!i) {
9157 err = -EINVAL;
9158 goto out_free;
9159 }
9160
9161 request->n_channels = i;
9162
9163 i = 0;
9164 if (n_ssids) {
9165 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
9166 tmp) {
9167 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
9168 err = -EINVAL;
9169 goto out_free;
9170 }
9171 request->ssids[i].ssid_len = nla_len(attr);
9172 memcpy(request->ssids[i].ssid, nla_data(attr),
9173 nla_len(attr));
9174 i++;
9175 }
9176 }
9177
9178 i = 0;
9179 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
9180 nla_for_each_nested(attr,
9181 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
9182 tmp) {
9183 struct nlattr *ssid, *bssid, *rssi;
9184
9185 err = nla_parse_nested_deprecated(tb,
9186 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
9187 attr,
9188 nl80211_match_policy,
9189 NULL);
9190 if (err)
9191 goto out_free;
9192 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
9193 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
9194
9195 if (!ssid && !bssid) {
9196 i++;
9197 continue;
9198 }
9199
9200 if (WARN_ON(i >= n_match_sets)) {
9201
9202
9203
9204
9205 err = -EINVAL;
9206 goto out_free;
9207 }
9208
9209 if (ssid) {
9210 memcpy(request->match_sets[i].ssid.ssid,
9211 nla_data(ssid), nla_len(ssid));
9212 request->match_sets[i].ssid.ssid_len =
9213 nla_len(ssid);
9214 }
9215 if (bssid)
9216 memcpy(request->match_sets[i].bssid,
9217 nla_data(bssid), ETH_ALEN);
9218
9219
9220 request->match_sets[i].rssi_thold = default_match_rssi;
9221 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
9222 if (rssi)
9223 request->match_sets[i].rssi_thold =
9224 nla_get_s32(rssi);
9225
9226
9227 err = nl80211_parse_sched_scan_per_band_rssi(wiphy,
9228 &request->match_sets[i],
9229 tb[NL80211_SCHED_SCAN_MATCH_PER_BAND_RSSI],
9230 request->match_sets[i].rssi_thold);
9231 if (err)
9232 goto out_free;
9233
9234 i++;
9235 }
9236
9237
9238 if (i == 0 && n_match_sets)
9239 request->match_sets[0].rssi_thold = default_match_rssi;
9240
9241 request->min_rssi_thold = INT_MAX;
9242 for (i = 0; i < n_match_sets; i++)
9243 request->min_rssi_thold =
9244 min(request->match_sets[i].rssi_thold,
9245 request->min_rssi_thold);
9246 } else {
9247 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
9248 }
9249
9250 if (ie_len) {
9251 request->ie_len = ie_len;
9252 memcpy((void *)request->ie,
9253 nla_data(attrs[NL80211_ATTR_IE]),
9254 request->ie_len);
9255 }
9256
9257 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
9258 if (err)
9259 goto out_free;
9260
9261 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
9262 request->delay =
9263 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
9264
9265 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
9266 request->relative_rssi = nla_get_s8(
9267 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
9268 request->relative_rssi_set = true;
9269 }
9270
9271 if (request->relative_rssi_set &&
9272 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
9273 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
9274
9275 rssi_adjust = nla_data(
9276 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
9277 request->rssi_adjust.band = rssi_adjust->band;
9278 request->rssi_adjust.delta = rssi_adjust->delta;
9279 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
9280 err = -EINVAL;
9281 goto out_free;
9282 }
9283 }
9284
9285 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
9286 if (err)
9287 goto out_free;
9288
9289 request->scan_start = jiffies;
9290
9291 return request;
9292
9293out_free:
9294 kfree(request);
9295 return ERR_PTR(err);
9296}
9297
9298static int nl80211_start_sched_scan(struct sk_buff *skb,
9299 struct genl_info *info)
9300{
9301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9302 struct net_device *dev = info->user_ptr[1];
9303 struct wireless_dev *wdev = dev->ieee80211_ptr;
9304 struct cfg80211_sched_scan_request *sched_scan_req;
9305 bool want_multi;
9306 int err;
9307
9308 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
9309 return -EOPNOTSUPP;
9310
9311 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
9312 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
9313 if (err)
9314 return err;
9315
9316 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
9317 info->attrs,
9318 rdev->wiphy.max_match_sets);
9319
9320 err = PTR_ERR_OR_ZERO(sched_scan_req);
9321 if (err)
9322 goto out_err;
9323
9324
9325
9326
9327 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1)
9328 sched_scan_req->reqid = cfg80211_assign_cookie(rdev);
9329
9330 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
9331 if (err)
9332 goto out_free;
9333
9334 sched_scan_req->dev = dev;
9335 sched_scan_req->wiphy = &rdev->wiphy;
9336
9337 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
9338 sched_scan_req->owner_nlportid = info->snd_portid;
9339
9340 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
9341
9342 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
9343 return 0;
9344
9345out_free:
9346 kfree(sched_scan_req);
9347out_err:
9348 return err;
9349}
9350
9351static int nl80211_stop_sched_scan(struct sk_buff *skb,
9352 struct genl_info *info)
9353{
9354 struct cfg80211_sched_scan_request *req;
9355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9356 u64 cookie;
9357
9358 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
9359 return -EOPNOTSUPP;
9360
9361 if (info->attrs[NL80211_ATTR_COOKIE]) {
9362 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9363 return __cfg80211_stop_sched_scan(rdev, cookie, false);
9364 }
9365
9366 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
9367 struct cfg80211_sched_scan_request,
9368 list);
9369 if (!req || req->reqid ||
9370 (req->owner_nlportid &&
9371 req->owner_nlportid != info->snd_portid))
9372 return -ENOENT;
9373
9374 return cfg80211_stop_sched_scan_req(rdev, req, false);
9375}
9376
9377static int nl80211_start_radar_detection(struct sk_buff *skb,
9378 struct genl_info *info)
9379{
9380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9381 struct net_device *dev = info->user_ptr[1];
9382 struct wireless_dev *wdev = dev->ieee80211_ptr;
9383 struct wiphy *wiphy = wdev->wiphy;
9384 struct cfg80211_chan_def chandef;
9385 enum nl80211_dfs_regions dfs_region;
9386 unsigned int cac_time_ms;
9387 int err = -EINVAL;
9388
9389 flush_delayed_work(&rdev->dfs_update_channels_wk);
9390
9391 wiphy_lock(wiphy);
9392
9393 dfs_region = reg_get_dfs_region(wiphy);
9394 if (dfs_region == NL80211_DFS_UNSET)
9395 goto unlock;
9396
9397 err = nl80211_parse_chandef(rdev, info, &chandef);
9398 if (err)
9399 goto unlock;
9400
9401 err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
9402 if (err < 0)
9403 goto unlock;
9404
9405 if (err == 0) {
9406 err = -EINVAL;
9407 goto unlock;
9408 }
9409
9410 if (!cfg80211_chandef_dfs_usable(wiphy, &chandef)) {
9411 err = -EINVAL;
9412 goto unlock;
9413 }
9414
9415 if (nla_get_flag(info->attrs[NL80211_ATTR_RADAR_BACKGROUND])) {
9416 err = cfg80211_start_background_radar_detection(rdev, wdev,
9417 &chandef);
9418 goto unlock;
9419 }
9420
9421 if (netif_carrier_ok(dev)) {
9422 err = -EBUSY;
9423 goto unlock;
9424 }
9425
9426 if (wdev->cac_started) {
9427 err = -EBUSY;
9428 goto unlock;
9429 }
9430
9431
9432 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) {
9433 err = -EOPNOTSUPP;
9434 goto unlock;
9435 }
9436
9437 if (!rdev->ops->start_radar_detection) {
9438 err = -EOPNOTSUPP;
9439 goto unlock;
9440 }
9441
9442 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
9443 if (WARN_ON(!cac_time_ms))
9444 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
9445
9446 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
9447 if (!err) {
9448 wdev->chandef = chandef;
9449 wdev->cac_started = true;
9450 wdev->cac_start_time = jiffies;
9451 wdev->cac_time_ms = cac_time_ms;
9452 }
9453unlock:
9454 wiphy_unlock(wiphy);
9455
9456 return err;
9457}
9458
9459static int nl80211_notify_radar_detection(struct sk_buff *skb,
9460 struct genl_info *info)
9461{
9462 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9463 struct net_device *dev = info->user_ptr[1];
9464 struct wireless_dev *wdev = dev->ieee80211_ptr;
9465 struct wiphy *wiphy = wdev->wiphy;
9466 struct cfg80211_chan_def chandef;
9467 enum nl80211_dfs_regions dfs_region;
9468 int err;
9469
9470 dfs_region = reg_get_dfs_region(wiphy);
9471 if (dfs_region == NL80211_DFS_UNSET) {
9472 GENL_SET_ERR_MSG(info,
9473 "DFS Region is not set. Unexpected Radar indication");
9474 return -EINVAL;
9475 }
9476
9477 err = nl80211_parse_chandef(rdev, info, &chandef);
9478 if (err) {
9479 GENL_SET_ERR_MSG(info, "Unable to extract chandef info");
9480 return err;
9481 }
9482
9483 err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
9484 if (err < 0) {
9485 GENL_SET_ERR_MSG(info, "chandef is invalid");
9486 return err;
9487 }
9488
9489 if (err == 0) {
9490 GENL_SET_ERR_MSG(info,
9491 "Unexpected Radar indication for chandef/iftype");
9492 return -EINVAL;
9493 }
9494
9495
9496
9497
9498 if (chandef.chan->dfs_state == NL80211_DFS_UNAVAILABLE)
9499 return 0;
9500
9501 cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_UNAVAILABLE);
9502
9503 cfg80211_sched_dfs_chan_update(rdev);
9504
9505 rdev->radar_chandef = chandef;
9506
9507
9508 queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk);
9509
9510 return 0;
9511}
9512
9513static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
9514{
9515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9516 struct net_device *dev = info->user_ptr[1];
9517 struct wireless_dev *wdev = dev->ieee80211_ptr;
9518 struct cfg80211_csa_settings params;
9519 struct nlattr **csa_attrs = NULL;
9520 int err;
9521 bool need_new_beacon = false;
9522 bool need_handle_dfs_flag = true;
9523 int len, i;
9524 u32 cs_count;
9525
9526 if (!rdev->ops->channel_switch ||
9527 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
9528 return -EOPNOTSUPP;
9529
9530 switch (dev->ieee80211_ptr->iftype) {
9531 case NL80211_IFTYPE_AP:
9532 case NL80211_IFTYPE_P2P_GO:
9533 need_new_beacon = true;
9534
9535
9536
9537
9538
9539 need_handle_dfs_flag = false;
9540
9541
9542 if (!wdev->beacon_interval)
9543 return -ENOTCONN;
9544 break;
9545 case NL80211_IFTYPE_ADHOC:
9546 if (!wdev->ssid_len)
9547 return -ENOTCONN;
9548 break;
9549 case NL80211_IFTYPE_MESH_POINT:
9550 if (!wdev->mesh_id_len)
9551 return -ENOTCONN;
9552 break;
9553 default:
9554 return -EOPNOTSUPP;
9555 }
9556
9557 memset(¶ms, 0, sizeof(params));
9558 params.beacon_csa.ftm_responder = -1;
9559
9560 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9561 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
9562 return -EINVAL;
9563
9564
9565 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
9566 return -EINVAL;
9567
9568
9569
9570
9571 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
9572 if (cs_count > 255)
9573 return -EINVAL;
9574
9575 params.count = cs_count;
9576
9577 if (!need_new_beacon)
9578 goto skip_beacons;
9579
9580 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_after);
9581 if (err)
9582 goto free;
9583
9584 csa_attrs = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*csa_attrs),
9585 GFP_KERNEL);
9586 if (!csa_attrs) {
9587 err = -ENOMEM;
9588 goto free;
9589 }
9590
9591 err = nla_parse_nested_deprecated(csa_attrs, NL80211_ATTR_MAX,
9592 info->attrs[NL80211_ATTR_CSA_IES],
9593 nl80211_policy, info->extack);
9594 if (err)
9595 goto free;
9596
9597 err = nl80211_parse_beacon(rdev, csa_attrs, ¶ms.beacon_csa);
9598 if (err)
9599 goto free;
9600
9601 if (!csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]) {
9602 err = -EINVAL;
9603 goto free;
9604 }
9605
9606 len = nla_len(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]);
9607 if (!len || (len % sizeof(u16))) {
9608 err = -EINVAL;
9609 goto free;
9610 }
9611
9612 params.n_counter_offsets_beacon = len / sizeof(u16);
9613 if (rdev->wiphy.max_num_csa_counters &&
9614 (params.n_counter_offsets_beacon >
9615 rdev->wiphy.max_num_csa_counters)) {
9616 err = -EINVAL;
9617 goto free;
9618 }
9619
9620 params.counter_offsets_beacon =
9621 nla_data(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_BEACON]);
9622
9623
9624 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
9625 u16 offset = params.counter_offsets_beacon[i];
9626
9627 if (offset >= params.beacon_csa.tail_len) {
9628 err = -EINVAL;
9629 goto free;
9630 }
9631
9632 if (params.beacon_csa.tail[offset] != params.count) {
9633 err = -EINVAL;
9634 goto free;
9635 }
9636 }
9637
9638 if (csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]) {
9639 len = nla_len(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]);
9640 if (!len || (len % sizeof(u16))) {
9641 err = -EINVAL;
9642 goto free;
9643 }
9644
9645 params.n_counter_offsets_presp = len / sizeof(u16);
9646 if (rdev->wiphy.max_num_csa_counters &&
9647 (params.n_counter_offsets_presp >
9648 rdev->wiphy.max_num_csa_counters)) {
9649 err = -EINVAL;
9650 goto free;
9651 }
9652
9653 params.counter_offsets_presp =
9654 nla_data(csa_attrs[NL80211_ATTR_CNTDWN_OFFS_PRESP]);
9655
9656
9657 for (i = 0; i < params.n_counter_offsets_presp; i++) {
9658 u16 offset = params.counter_offsets_presp[i];
9659
9660 if (offset >= params.beacon_csa.probe_resp_len) {
9661 err = -EINVAL;
9662 goto free;
9663 }
9664
9665 if (params.beacon_csa.probe_resp[offset] !=
9666 params.count) {
9667 err = -EINVAL;
9668 goto free;
9669 }
9670 }
9671 }
9672
9673skip_beacons:
9674 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
9675 if (err)
9676 goto free;
9677
9678 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
9679 wdev->iftype)) {
9680 err = -EINVAL;
9681 goto free;
9682 }
9683
9684 err = cfg80211_chandef_dfs_required(wdev->wiphy,
9685 ¶ms.chandef,
9686 wdev->iftype);
9687 if (err < 0)
9688 goto free;
9689
9690 if (err > 0) {
9691 params.radar_required = true;
9692 if (need_handle_dfs_flag &&
9693 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
9694 err = -EINVAL;
9695 goto free;
9696 }
9697 }
9698
9699 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
9700 params.block_tx = true;
9701
9702 wdev_lock(wdev);
9703 err = rdev_channel_switch(rdev, dev, ¶ms);
9704 wdev_unlock(wdev);
9705
9706free:
9707 kfree(params.beacon_after.mbssid_ies);
9708 kfree(params.beacon_csa.mbssid_ies);
9709 kfree(csa_attrs);
9710 return err;
9711}
9712
9713static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
9714 u32 seq, int flags,
9715 struct cfg80211_registered_device *rdev,
9716 struct wireless_dev *wdev,
9717 struct cfg80211_internal_bss *intbss)
9718{
9719 struct cfg80211_bss *res = &intbss->pub;
9720 const struct cfg80211_bss_ies *ies;
9721 void *hdr;
9722 struct nlattr *bss;
9723
9724 ASSERT_WDEV_LOCK(wdev);
9725
9726 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
9727 NL80211_CMD_NEW_SCAN_RESULTS);
9728 if (!hdr)
9729 return -1;
9730
9731 genl_dump_check_consistent(cb, hdr);
9732
9733 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
9734 goto nla_put_failure;
9735 if (wdev->netdev &&
9736 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
9737 goto nla_put_failure;
9738 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
9739 NL80211_ATTR_PAD))
9740 goto nla_put_failure;
9741
9742 bss = nla_nest_start_noflag(msg, NL80211_ATTR_BSS);
9743 if (!bss)
9744 goto nla_put_failure;
9745 if ((!is_zero_ether_addr(res->bssid) &&
9746 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9747 goto nla_put_failure;
9748
9749 rcu_read_lock();
9750
9751 if (rcu_access_pointer(res->proberesp_ies) &&
9752 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
9753 goto fail_unlock_rcu;
9754
9755
9756
9757
9758 ies = rcu_dereference(res->ies);
9759 if (ies) {
9760 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
9761 NL80211_BSS_PAD))
9762 goto fail_unlock_rcu;
9763 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
9764 ies->len, ies->data))
9765 goto fail_unlock_rcu;
9766 }
9767
9768
9769 ies = rcu_dereference(res->beacon_ies);
9770 if (ies && ies->from_beacon) {
9771 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
9772 NL80211_BSS_PAD))
9773 goto fail_unlock_rcu;
9774 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
9775 ies->len, ies->data))
9776 goto fail_unlock_rcu;
9777 }
9778 rcu_read_unlock();
9779
9780 if (res->beacon_interval &&
9781 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
9782 goto nla_put_failure;
9783 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
9784 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
9785 nla_put_u32(msg, NL80211_BSS_FREQUENCY_OFFSET,
9786 res->channel->freq_offset) ||
9787 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9788 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
9789 jiffies_to_msecs(jiffies - intbss->ts)))
9790 goto nla_put_failure;
9791
9792 if (intbss->parent_tsf &&
9793 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
9794 intbss->parent_tsf, NL80211_BSS_PAD) ||
9795 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
9796 intbss->parent_bssid)))
9797 goto nla_put_failure;
9798
9799 if (intbss->ts_boottime &&
9800 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
9801 intbss->ts_boottime, NL80211_BSS_PAD))
9802 goto nla_put_failure;
9803
9804 if (!nl80211_put_signal(msg, intbss->pub.chains,
9805 intbss->pub.chain_signal,
9806 NL80211_BSS_CHAIN_SIGNAL))
9807 goto nla_put_failure;
9808
9809 switch (rdev->wiphy.signal_type) {
9810 case CFG80211_SIGNAL_TYPE_MBM:
9811 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
9812 goto nla_put_failure;
9813 break;
9814 case CFG80211_SIGNAL_TYPE_UNSPEC:
9815 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
9816 goto nla_put_failure;
9817 break;
9818 default:
9819 break;
9820 }
9821
9822 switch (wdev->iftype) {
9823 case NL80211_IFTYPE_P2P_CLIENT:
9824 case NL80211_IFTYPE_STATION:
9825 if (intbss == wdev->current_bss &&
9826 nla_put_u32(msg, NL80211_BSS_STATUS,
9827 NL80211_BSS_STATUS_ASSOCIATED))
9828 goto nla_put_failure;
9829 break;
9830 case NL80211_IFTYPE_ADHOC:
9831 if (intbss == wdev->current_bss &&
9832 nla_put_u32(msg, NL80211_BSS_STATUS,
9833 NL80211_BSS_STATUS_IBSS_JOINED))
9834 goto nla_put_failure;
9835 break;
9836 default:
9837 break;
9838 }
9839
9840 nla_nest_end(msg, bss);
9841
9842 genlmsg_end(msg, hdr);
9843 return 0;
9844
9845 fail_unlock_rcu:
9846 rcu_read_unlock();
9847 nla_put_failure:
9848 genlmsg_cancel(msg, hdr);
9849 return -EMSGSIZE;
9850}
9851
9852static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
9853{
9854 struct cfg80211_registered_device *rdev;
9855 struct cfg80211_internal_bss *scan;
9856 struct wireless_dev *wdev;
9857 int start = cb->args[2], idx = 0;
9858 int err;
9859
9860 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, NULL);
9861 if (err)
9862 return err;
9863
9864 __acquire(&rdev->wiphy.mtx);
9865
9866 wdev_lock(wdev);
9867 spin_lock_bh(&rdev->bss_lock);
9868
9869
9870
9871
9872
9873
9874
9875 if (start == 0)
9876 cfg80211_bss_expire(rdev);
9877
9878 cb->seq = rdev->bss_generation;
9879
9880 list_for_each_entry(scan, &rdev->bss_list, list) {
9881 if (++idx <= start)
9882 continue;
9883 if (nl80211_send_bss(skb, cb,
9884 cb->nlh->nlmsg_seq, NLM_F_MULTI,
9885 rdev, wdev, scan) < 0) {
9886 idx--;
9887 break;
9888 }
9889 }
9890
9891 spin_unlock_bh(&rdev->bss_lock);
9892 wdev_unlock(wdev);
9893
9894 cb->args[2] = idx;
9895 wiphy_unlock(&rdev->wiphy);
9896
9897 return skb->len;
9898}
9899
9900static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
9901 int flags, struct net_device *dev,
9902 bool allow_radio_stats,
9903 struct survey_info *survey)
9904{
9905 void *hdr;
9906 struct nlattr *infoattr;
9907
9908
9909 if (!survey->channel && !allow_radio_stats)
9910 return 0;
9911
9912 hdr = nl80211hdr_put(msg, portid, seq, flags,
9913 NL80211_CMD_NEW_SURVEY_RESULTS);
9914 if (!hdr)
9915 return -ENOMEM;
9916
9917 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9918 goto nla_put_failure;
9919
9920 infoattr = nla_nest_start_noflag(msg, NL80211_ATTR_SURVEY_INFO);
9921 if (!infoattr)
9922 goto nla_put_failure;
9923
9924 if (survey->channel &&
9925 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9926 survey->channel->center_freq))
9927 goto nla_put_failure;
9928
9929 if (survey->channel && survey->channel->freq_offset &&
9930 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY_OFFSET,
9931 survey->channel->freq_offset))
9932 goto nla_put_failure;
9933
9934 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
9935 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
9936 goto nla_put_failure;
9937 if ((survey->filled & SURVEY_INFO_IN_USE) &&
9938 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
9939 goto nla_put_failure;
9940 if ((survey->filled & SURVEY_INFO_TIME) &&
9941 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
9942 survey->time, NL80211_SURVEY_INFO_PAD))
9943 goto nla_put_failure;
9944 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
9945 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
9946 survey->time_busy, NL80211_SURVEY_INFO_PAD))
9947 goto nla_put_failure;
9948 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
9949 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
9950 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
9951 goto nla_put_failure;
9952 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
9953 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
9954 survey->time_rx, NL80211_SURVEY_INFO_PAD))
9955 goto nla_put_failure;
9956 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
9957 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
9958 survey->time_tx, NL80211_SURVEY_INFO_PAD))
9959 goto nla_put_failure;
9960 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
9961 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
9962 survey->time_scan, NL80211_SURVEY_INFO_PAD))
9963 goto nla_put_failure;
9964 if ((survey->filled & SURVEY_INFO_TIME_BSS_RX) &&
9965 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BSS_RX,
9966 survey->time_bss_rx, NL80211_SURVEY_INFO_PAD))
9967 goto nla_put_failure;
9968
9969 nla_nest_end(msg, infoattr);
9970
9971 genlmsg_end(msg, hdr);
9972 return 0;
9973
9974 nla_put_failure:
9975 genlmsg_cancel(msg, hdr);
9976 return -EMSGSIZE;
9977}
9978
9979static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
9980{
9981 struct nlattr **attrbuf;
9982 struct survey_info survey;
9983 struct cfg80211_registered_device *rdev;
9984 struct wireless_dev *wdev;
9985 int survey_idx = cb->args[2];
9986 int res;
9987 bool radio_stats;
9988
9989 attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL);
9990 if (!attrbuf)
9991 return -ENOMEM;
9992
9993 res = nl80211_prepare_wdev_dump(cb, &rdev, &wdev, attrbuf);
9994 if (res) {
9995 kfree(attrbuf);
9996 return res;
9997 }
9998
9999 __acquire(&rdev->wiphy.mtx);
10000
10001
10002 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
10003
10004 if (!wdev->netdev) {
10005 res = -EINVAL;
10006 goto out_err;
10007 }
10008
10009 if (!rdev->ops->dump_survey) {
10010 res = -EOPNOTSUPP;
10011 goto out_err;
10012 }
10013
10014 while (1) {
10015 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
10016 if (res == -ENOENT)
10017 break;
10018 if (res)
10019 goto out_err;
10020
10021
10022 if (survey.channel &&
10023 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
10024 survey_idx++;
10025 continue;
10026 }
10027
10028 if (nl80211_send_survey(skb,
10029 NETLINK_CB(cb->skb).portid,
10030 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10031 wdev->netdev, radio_stats, &survey) < 0)
10032 goto out;
10033 survey_idx++;
10034 }
10035
10036 out:
10037 cb->args[2] = survey_idx;
10038 res = skb->len;
10039 out_err:
10040 kfree(attrbuf);
10041 wiphy_unlock(&rdev->wiphy);
10042 return res;
10043}
10044
10045static bool nl80211_valid_wpa_versions(u32 wpa_versions)
10046{
10047 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
10048 NL80211_WPA_VERSION_2 |
10049 NL80211_WPA_VERSION_3));
10050}
10051
10052static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
10053{
10054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10055 struct net_device *dev = info->user_ptr[1];
10056 struct ieee80211_channel *chan;
10057 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
10058 int err, ssid_len, ie_len = 0, auth_data_len = 0;
10059 enum nl80211_auth_type auth_type;
10060 struct key_parse key;
10061 bool local_state_change;
10062 u32 freq;
10063
10064 if (!info->attrs[NL80211_ATTR_MAC])
10065 return -EINVAL;
10066
10067 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
10068 return -EINVAL;
10069
10070 if (!info->attrs[NL80211_ATTR_SSID])
10071 return -EINVAL;
10072
10073 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
10074 return -EINVAL;
10075
10076 err = nl80211_parse_key(info, &key);
10077 if (err)
10078 return err;
10079
10080 if (key.idx >= 0) {
10081 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
10082 return -EINVAL;
10083 if (!key.p.key || !key.p.key_len)
10084 return -EINVAL;
10085 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
10086 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
10087 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
10088 key.p.key_len != WLAN_KEY_LEN_WEP104))
10089 return -EINVAL;
10090 if (key.idx > 3)
10091 return -EINVAL;
10092 } else {
10093 key.p.key_len = 0;
10094 key.p.key = NULL;
10095 }
10096
10097 if (key.idx >= 0) {
10098 int i;
10099 bool ok = false;
10100
10101 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
10102 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
10103 ok = true;
10104 break;
10105 }
10106 }
10107 if (!ok)
10108 return -EINVAL;
10109 }
10110
10111 if (!rdev->ops->auth)
10112 return -EOPNOTSUPP;
10113
10114 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
10115 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
10116 return -EOPNOTSUPP;
10117
10118 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
10119 freq = MHZ_TO_KHZ(nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
10120 if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET])
10121 freq +=
10122 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]);
10123
10124 chan = nl80211_get_valid_chan(&rdev->wiphy, freq);
10125 if (!chan)
10126 return -EINVAL;
10127
10128 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
10129 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
10130
10131 if (info->attrs[NL80211_ATTR_IE]) {
10132 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10133 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10134 }
10135
10136 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
10137 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
10138 return -EINVAL;
10139
10140 if ((auth_type == NL80211_AUTHTYPE_SAE ||
10141 auth_type == NL80211_AUTHTYPE_FILS_SK ||
10142 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
10143 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
10144 !info->attrs[NL80211_ATTR_AUTH_DATA])
10145 return -EINVAL;
10146
10147 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
10148 if (auth_type != NL80211_AUTHTYPE_SAE &&
10149 auth_type != NL80211_AUTHTYPE_FILS_SK &&
10150 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
10151 auth_type != NL80211_AUTHTYPE_FILS_PK)
10152 return -EINVAL;
10153 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
10154 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
10155 }
10156
10157 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
10158
10159
10160
10161
10162
10163 if (local_state_change)
10164 return 0;
10165
10166 wdev_lock(dev->ieee80211_ptr);
10167 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
10168 ssid, ssid_len, ie, ie_len,
10169 key.p.key, key.p.key_len, key.idx,
10170 auth_data, auth_data_len);
10171 wdev_unlock(dev->ieee80211_ptr);
10172 return err;
10173}
10174
10175static int validate_pae_over_nl80211(struct cfg80211_registered_device *rdev,
10176 struct genl_info *info)
10177{
10178 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
10179 GENL_SET_ERR_MSG(info, "SOCKET_OWNER not set");
10180 return -EINVAL;
10181 }
10182
10183 if (!rdev->ops->tx_control_port ||
10184 !wiphy_ext_feature_isset(&rdev->wiphy,
10185 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
10186 return -EOPNOTSUPP;
10187
10188 return 0;
10189}
10190
10191static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
10192 struct genl_info *info,
10193 struct cfg80211_crypto_settings *settings,
10194 int cipher_limit)
10195{
10196 memset(settings, 0, sizeof(*settings));
10197
10198 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
10199
10200 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
10201 u16 proto;
10202
10203 proto = nla_get_u16(
10204 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
10205 settings->control_port_ethertype = cpu_to_be16(proto);
10206 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
10207 proto != ETH_P_PAE)
10208 return -EINVAL;
10209 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
10210 settings->control_port_no_encrypt = true;
10211 } else
10212 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
10213
10214 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
10215 int r = validate_pae_over_nl80211(rdev, info);
10216
10217 if (r < 0)
10218 return r;
10219
10220 settings->control_port_over_nl80211 = true;
10221
10222 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_PREAUTH])
10223 settings->control_port_no_preauth = true;
10224 }
10225
10226 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
10227 void *data;
10228 int len, i;
10229
10230 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
10231 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
10232 settings->n_ciphers_pairwise = len / sizeof(u32);
10233
10234 if (len % sizeof(u32))
10235 return -EINVAL;
10236
10237 if (settings->n_ciphers_pairwise > cipher_limit)
10238 return -EINVAL;
10239
10240 memcpy(settings->ciphers_pairwise, data, len);
10241
10242 for (i = 0; i < settings->n_ciphers_pairwise; i++)
10243 if (!cfg80211_supported_cipher_suite(
10244 &rdev->wiphy,
10245 settings->ciphers_pairwise[i]))
10246 return -EINVAL;
10247 }
10248
10249 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
10250 settings->cipher_group =
10251 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
10252 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
10253 settings->cipher_group))
10254 return -EINVAL;
10255 }
10256
10257 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
10258 settings->wpa_versions =
10259 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
10260 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
10261 return -EINVAL;
10262 }
10263
10264 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
10265 void *data;
10266 int len;
10267
10268 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
10269 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
10270 settings->n_akm_suites = len / sizeof(u32);
10271
10272 if (len % sizeof(u32))
10273 return -EINVAL;
10274
10275 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
10276 return -EINVAL;
10277
10278 memcpy(settings->akm_suites, data, len);
10279 }
10280
10281 if (info->attrs[NL80211_ATTR_PMK]) {
10282 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
10283 return -EINVAL;
10284 if (!wiphy_ext_feature_isset(&rdev->wiphy,
10285 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK) &&
10286 !wiphy_ext_feature_isset(&rdev->wiphy,
10287 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK))
10288 return -EINVAL;
10289 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
10290 }
10291
10292 if (info->attrs[NL80211_ATTR_SAE_PASSWORD]) {
10293 if (!wiphy_ext_feature_isset(&rdev->wiphy,
10294 NL80211_EXT_FEATURE_SAE_OFFLOAD) &&
10295 !wiphy_ext_feature_isset(&rdev->wiphy,
10296 NL80211_EXT_FEATURE_SAE_OFFLOAD_AP))
10297 return -EINVAL;
10298 settings->sae_pwd =
10299 nla_data(info->attrs[NL80211_ATTR_SAE_PASSWORD]);
10300 settings->sae_pwd_len =
10301 nla_len(info->attrs[NL80211_ATTR_SAE_PASSWORD]);
10302 }
10303
10304 if (info->attrs[NL80211_ATTR_SAE_PWE])
10305 settings->sae_pwe =
10306 nla_get_u8(info->attrs[NL80211_ATTR_SAE_PWE]);
10307 else
10308 settings->sae_pwe = NL80211_SAE_PWE_UNSPECIFIED;
10309
10310 return 0;
10311}
10312
10313static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
10314{
10315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10316 struct net_device *dev = info->user_ptr[1];
10317 struct ieee80211_channel *chan;
10318 struct cfg80211_assoc_request req = {};
10319 const u8 *bssid, *ssid;
10320 int err, ssid_len = 0;
10321 u32 freq;
10322
10323 if (dev->ieee80211_ptr->conn_owner_nlportid &&
10324 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
10325 return -EPERM;
10326
10327 if (!info->attrs[NL80211_ATTR_MAC] ||
10328 !info->attrs[NL80211_ATTR_SSID] ||
10329 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
10330 return -EINVAL;
10331
10332 if (!rdev->ops->assoc)
10333 return -EOPNOTSUPP;
10334
10335 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
10336 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
10337 return -EOPNOTSUPP;
10338
10339 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
10340
10341 freq = MHZ_TO_KHZ(nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
10342 if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET])
10343 freq +=
10344 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]);
10345 chan = nl80211_get_valid_chan(&rdev->wiphy, freq);
10346 if (!chan)
10347 return -EINVAL;
10348
10349 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
10350 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
10351
10352 if (info->attrs[NL80211_ATTR_IE]) {
10353 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10354 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10355 }
10356
10357 if (info->attrs[NL80211_ATTR_USE_MFP]) {
10358 enum nl80211_mfp mfp =
10359 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
10360 if (mfp == NL80211_MFP_REQUIRED)
10361 req.use_mfp = true;
10362 else if (mfp != NL80211_MFP_NO)
10363 return -EINVAL;
10364 }
10365
10366 if (info->attrs[NL80211_ATTR_PREV_BSSID])
10367 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
10368
10369 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
10370 req.flags |= ASSOC_REQ_DISABLE_HT;
10371
10372 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
10373 memcpy(&req.ht_capa_mask,
10374 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
10375 sizeof(req.ht_capa_mask));
10376
10377 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
10378 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
10379 return -EINVAL;
10380 memcpy(&req.ht_capa,
10381 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
10382 sizeof(req.ht_capa));
10383 }
10384
10385 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
10386 req.flags |= ASSOC_REQ_DISABLE_VHT;
10387
10388 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HE]))
10389 req.flags |= ASSOC_REQ_DISABLE_HE;
10390
10391 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_EHT]))
10392 req.flags |= ASSOC_REQ_DISABLE_EHT;
10393
10394 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
10395 memcpy(&req.vht_capa_mask,
10396 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
10397 sizeof(req.vht_capa_mask));
10398
10399 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
10400 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
10401 return -EINVAL;
10402 memcpy(&req.vht_capa,
10403 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
10404 sizeof(req.vht_capa));
10405 }
10406
10407 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
10408 if (!((rdev->wiphy.features &
10409 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
10410 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
10411 !wiphy_ext_feature_isset(&rdev->wiphy,
10412 NL80211_EXT_FEATURE_RRM))
10413 return -EINVAL;
10414 req.flags |= ASSOC_REQ_USE_RRM;
10415 }
10416
10417 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
10418 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
10419 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
10420 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
10421 return -EINVAL;
10422 req.fils_nonces =
10423 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
10424 }
10425
10426 if (info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK]) {
10427 if (!info->attrs[NL80211_ATTR_S1G_CAPABILITY])
10428 return -EINVAL;
10429 memcpy(&req.s1g_capa_mask,
10430 nla_data(info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK]),
10431 sizeof(req.s1g_capa_mask));
10432 }
10433
10434 if (info->attrs[NL80211_ATTR_S1G_CAPABILITY]) {
10435 if (!info->attrs[NL80211_ATTR_S1G_CAPABILITY_MASK])
10436 return -EINVAL;
10437 memcpy(&req.s1g_capa,
10438 nla_data(info->attrs[NL80211_ATTR_S1G_CAPABILITY]),
10439 sizeof(req.s1g_capa));
10440 }
10441
10442 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
10443 if (!err) {
10444 wdev_lock(dev->ieee80211_ptr);
10445
10446 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
10447 ssid, ssid_len, &req);
10448
10449 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
10450 dev->ieee80211_ptr->conn_owner_nlportid =
10451 info->snd_portid;
10452 memcpy(dev->ieee80211_ptr->disconnect_bssid,
10453 bssid, ETH_ALEN);
10454 }
10455
10456 wdev_unlock(dev->ieee80211_ptr);
10457 }
10458
10459 return err;
10460}
10461
10462static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
10463{
10464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10465 struct net_device *dev = info->user_ptr[1];
10466 const u8 *ie = NULL, *bssid;
10467 int ie_len = 0, err;
10468 u16 reason_code;
10469 bool local_state_change;
10470
10471 if (dev->ieee80211_ptr->conn_owner_nlportid &&
10472 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
10473 return -EPERM;
10474
10475 if (!info->attrs[NL80211_ATTR_MAC])
10476 return -EINVAL;
10477
10478 if (!info->attrs[NL80211_ATTR_REASON_CODE])
10479 return -EINVAL;
10480
10481 if (!rdev->ops->deauth)
10482 return -EOPNOTSUPP;
10483
10484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
10485 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
10486 return -EOPNOTSUPP;
10487
10488 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
10489
10490 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
10491 if (reason_code == 0) {
10492
10493 return -EINVAL;
10494 }
10495
10496 if (info->attrs[NL80211_ATTR_IE]) {
10497 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10498 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10499 }
10500
10501 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
10502
10503 wdev_lock(dev->ieee80211_ptr);
10504 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
10505 local_state_change);
10506 wdev_unlock(dev->ieee80211_ptr);
10507 return err;
10508}
10509
10510static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
10511{
10512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10513 struct net_device *dev = info->user_ptr[1];
10514 const u8 *ie = NULL, *bssid;
10515 int ie_len = 0, err;
10516 u16 reason_code;
10517 bool local_state_change;
10518
10519 if (dev->ieee80211_ptr->conn_owner_nlportid &&
10520 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
10521 return -EPERM;
10522
10523 if (!info->attrs[NL80211_ATTR_MAC])
10524 return -EINVAL;
10525
10526 if (!info->attrs[NL80211_ATTR_REASON_CODE])
10527 return -EINVAL;
10528
10529 if (!rdev->ops->disassoc)
10530 return -EOPNOTSUPP;
10531
10532 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
10533 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
10534 return -EOPNOTSUPP;
10535
10536 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
10537
10538 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
10539 if (reason_code == 0) {
10540
10541 return -EINVAL;
10542 }
10543
10544 if (info->attrs[NL80211_ATTR_IE]) {
10545 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10546 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10547 }
10548
10549 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
10550
10551 wdev_lock(dev->ieee80211_ptr);
10552 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
10553 local_state_change);
10554 wdev_unlock(dev->ieee80211_ptr);
10555 return err;
10556}
10557
10558static bool
10559nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
10560 int mcast_rate[NUM_NL80211_BANDS],
10561 int rateval)
10562{
10563 struct wiphy *wiphy = &rdev->wiphy;
10564 bool found = false;
10565 int band, i;
10566
10567 for (band = 0; band < NUM_NL80211_BANDS; band++) {
10568 struct ieee80211_supported_band *sband;
10569
10570 sband = wiphy->bands[band];
10571 if (!sband)
10572 continue;
10573
10574 for (i = 0; i < sband->n_bitrates; i++) {
10575 if (sband->bitrates[i].bitrate == rateval) {
10576 mcast_rate[band] = i + 1;
10577 found = true;
10578 break;
10579 }
10580 }
10581 }
10582
10583 return found;
10584}
10585
10586static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
10587{
10588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10589 struct net_device *dev = info->user_ptr[1];
10590 struct cfg80211_ibss_params ibss;
10591 struct wiphy *wiphy;
10592 struct cfg80211_cached_keys *connkeys = NULL;
10593 int err;
10594
10595 memset(&ibss, 0, sizeof(ibss));
10596
10597 if (!info->attrs[NL80211_ATTR_SSID] ||
10598 !nla_len(info->attrs[NL80211_ATTR_SSID]))
10599 return -EINVAL;
10600
10601 ibss.beacon_interval = 100;
10602
10603 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
10604 ibss.beacon_interval =
10605 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
10606
10607 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
10608 ibss.beacon_interval);
10609 if (err)
10610 return err;
10611
10612 if (!rdev->ops->join_ibss)
10613 return -EOPNOTSUPP;
10614
10615 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
10616 return -EOPNOTSUPP;
10617
10618 wiphy = &rdev->wiphy;
10619
10620 if (info->attrs[NL80211_ATTR_MAC]) {
10621 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
10622
10623 if (!is_valid_ether_addr(ibss.bssid))
10624 return -EINVAL;
10625 }
10626 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
10627 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
10628
10629 if (info->attrs[NL80211_ATTR_IE]) {
10630 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10631 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10632 }
10633
10634 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
10635 if (err)
10636 return err;
10637
10638 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
10639 NL80211_IFTYPE_ADHOC))
10640 return -EINVAL;
10641
10642 switch (ibss.chandef.width) {
10643 case NL80211_CHAN_WIDTH_5:
10644 case NL80211_CHAN_WIDTH_10:
10645 case NL80211_CHAN_WIDTH_20_NOHT:
10646 break;
10647 case NL80211_CHAN_WIDTH_20:
10648 case NL80211_CHAN_WIDTH_40:
10649 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
10650 return -EINVAL;
10651 break;
10652 case NL80211_CHAN_WIDTH_80:
10653 case NL80211_CHAN_WIDTH_80P80:
10654 case NL80211_CHAN_WIDTH_160:
10655 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
10656 return -EINVAL;
10657 if (!wiphy_ext_feature_isset(&rdev->wiphy,
10658 NL80211_EXT_FEATURE_VHT_IBSS))
10659 return -EINVAL;
10660 break;
10661 case NL80211_CHAN_WIDTH_320:
10662 return -EINVAL;
10663 default:
10664 return -EINVAL;
10665 }
10666
10667 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
10668 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
10669
10670 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10671 u8 *rates =
10672 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10673 int n_rates =
10674 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10675 struct ieee80211_supported_band *sband =
10676 wiphy->bands[ibss.chandef.chan->band];
10677
10678 err = ieee80211_get_ratemask(sband, rates, n_rates,
10679 &ibss.basic_rates);
10680 if (err)
10681 return err;
10682 }
10683
10684 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
10685 memcpy(&ibss.ht_capa_mask,
10686 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
10687 sizeof(ibss.ht_capa_mask));
10688
10689 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
10690 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
10691 return -EINVAL;
10692 memcpy(&ibss.ht_capa,
10693 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
10694 sizeof(ibss.ht_capa));
10695 }
10696
10697 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10698 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
10699 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10700 return -EINVAL;
10701
10702 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
10703 bool no_ht = false;
10704
10705 connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
10706 if (IS_ERR(connkeys))
10707 return PTR_ERR(connkeys);
10708
10709 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
10710 no_ht) {
10711 kfree_sensitive(connkeys);
10712 return -EINVAL;
10713 }
10714 }
10715
10716 ibss.control_port =
10717 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
10718
10719 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
10720 int r = validate_pae_over_nl80211(rdev, info);
10721
10722 if (r < 0) {
10723 kfree_sensitive(connkeys);
10724 return r;
10725 }
10726
10727 ibss.control_port_over_nl80211 = true;
10728 }
10729
10730 ibss.userspace_handles_dfs =
10731 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10732
10733 wdev_lock(dev->ieee80211_ptr);
10734 err = __cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
10735 if (err)
10736 kfree_sensitive(connkeys);
10737 else if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
10738 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
10739 wdev_unlock(dev->ieee80211_ptr);
10740
10741 return err;
10742}
10743
10744static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
10745{
10746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10747 struct net_device *dev = info->user_ptr[1];
10748
10749 if (!rdev->ops->leave_ibss)
10750 return -EOPNOTSUPP;
10751
10752 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
10753 return -EOPNOTSUPP;
10754
10755 return cfg80211_leave_ibss(rdev, dev, false);
10756}
10757
10758static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
10759{
10760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10761 struct net_device *dev = info->user_ptr[1];
10762 int mcast_rate[NUM_NL80211_BANDS];
10763 u32 nla_rate;
10764 int err;
10765
10766 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
10767 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
10768 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
10769 return -EOPNOTSUPP;
10770
10771 if (!rdev->ops->set_mcast_rate)
10772 return -EOPNOTSUPP;
10773
10774 memset(mcast_rate, 0, sizeof(mcast_rate));
10775
10776 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
10777 return -EINVAL;
10778
10779 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
10780 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
10781 return -EINVAL;
10782
10783 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
10784
10785 return err;
10786}
10787
10788static struct sk_buff *
10789__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
10790 struct wireless_dev *wdev, int approxlen,
10791 u32 portid, u32 seq, enum nl80211_commands cmd,
10792 enum nl80211_attrs attr,
10793 const struct nl80211_vendor_cmd_info *info,
10794 gfp_t gfp)
10795{
10796 struct sk_buff *skb;
10797 void *hdr;
10798 struct nlattr *data;
10799
10800 skb = nlmsg_new(approxlen + 100, gfp);
10801 if (!skb)
10802 return NULL;
10803
10804 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
10805 if (!hdr) {
10806 kfree_skb(skb);
10807 return NULL;
10808 }
10809
10810 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10811 goto nla_put_failure;
10812
10813 if (info) {
10814 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
10815 info->vendor_id))
10816 goto nla_put_failure;
10817 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
10818 info->subcmd))
10819 goto nla_put_failure;
10820 }
10821
10822 if (wdev) {
10823 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10824 wdev_id(wdev), NL80211_ATTR_PAD))
10825 goto nla_put_failure;
10826 if (wdev->netdev &&
10827 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
10828 wdev->netdev->ifindex))
10829 goto nla_put_failure;
10830 }
10831
10832 data = nla_nest_start_noflag(skb, attr);
10833 if (!data)
10834 goto nla_put_failure;
10835
10836 ((void **)skb->cb)[0] = rdev;
10837 ((void **)skb->cb)[1] = hdr;
10838 ((void **)skb->cb)[2] = data;
10839
10840 return skb;
10841
10842 nla_put_failure:
10843 kfree_skb(skb);
10844 return NULL;
10845}
10846
10847struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
10848 struct wireless_dev *wdev,
10849 enum nl80211_commands cmd,
10850 enum nl80211_attrs attr,
10851 unsigned int portid,
10852 int vendor_event_idx,
10853 int approxlen, gfp_t gfp)
10854{
10855 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10856 const struct nl80211_vendor_cmd_info *info;
10857
10858 switch (cmd) {
10859 case NL80211_CMD_TESTMODE:
10860 if (WARN_ON(vendor_event_idx != -1))
10861 return NULL;
10862 info = NULL;
10863 break;
10864 case NL80211_CMD_VENDOR:
10865 if (WARN_ON(vendor_event_idx < 0 ||
10866 vendor_event_idx >= wiphy->n_vendor_events))
10867 return NULL;
10868 info = &wiphy->vendor_events[vendor_event_idx];
10869 break;
10870 default:
10871 WARN_ON(1);
10872 return NULL;
10873 }
10874
10875 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, portid, 0,
10876 cmd, attr, info, gfp);
10877}
10878EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
10879
10880void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
10881{
10882 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10883 void *hdr = ((void **)skb->cb)[1];
10884 struct nlmsghdr *nlhdr = nlmsg_hdr(skb);
10885 struct nlattr *data = ((void **)skb->cb)[2];
10886 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
10887
10888
10889 memset(skb->cb, 0, sizeof(skb->cb));
10890
10891 nla_nest_end(skb, data);
10892 genlmsg_end(skb, hdr);
10893
10894 if (nlhdr->nlmsg_pid) {
10895 genlmsg_unicast(wiphy_net(&rdev->wiphy), skb,
10896 nlhdr->nlmsg_pid);
10897 } else {
10898 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
10899 mcgrp = NL80211_MCGRP_VENDOR;
10900
10901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
10902 skb, 0, mcgrp, gfp);
10903 }
10904}
10905EXPORT_SYMBOL(__cfg80211_send_event_skb);
10906
10907#ifdef CONFIG_NL80211_TESTMODE
10908static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
10909{
10910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10911 struct wireless_dev *wdev;
10912 int err;
10913
10914 lockdep_assert_held(&rdev->wiphy.mtx);
10915
10916 wdev = __cfg80211_wdev_from_attrs(rdev, genl_info_net(info),
10917 info->attrs);
10918
10919 if (!rdev->ops->testmode_cmd)
10920 return -EOPNOTSUPP;
10921
10922 if (IS_ERR(wdev)) {
10923 err = PTR_ERR(wdev);
10924 if (err != -EINVAL)
10925 return err;
10926 wdev = NULL;
10927 } else if (wdev->wiphy != &rdev->wiphy) {
10928 return -EINVAL;
10929 }
10930
10931 if (!info->attrs[NL80211_ATTR_TESTDATA])
10932 return -EINVAL;
10933
10934 rdev->cur_cmd_info = info;
10935 err = rdev_testmode_cmd(rdev, wdev,
10936 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
10937 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
10938 rdev->cur_cmd_info = NULL;
10939
10940 return err;
10941}
10942
10943static int nl80211_testmode_dump(struct sk_buff *skb,
10944 struct netlink_callback *cb)
10945{
10946 struct cfg80211_registered_device *rdev;
10947 struct nlattr **attrbuf = NULL;
10948 int err;
10949 long phy_idx;
10950 void *data = NULL;
10951 int data_len = 0;
10952
10953 rtnl_lock();
10954
10955 if (cb->args[0]) {
10956
10957
10958
10959
10960 phy_idx = cb->args[0] - 1;
10961
10962 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
10963 if (!rdev) {
10964 err = -ENOENT;
10965 goto out_err;
10966 }
10967 } else {
10968 attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf),
10969 GFP_KERNEL);
10970 if (!attrbuf) {
10971 err = -ENOMEM;
10972 goto out_err;
10973 }
10974
10975 err = nlmsg_parse_deprecated(cb->nlh,
10976 GENL_HDRLEN + nl80211_fam.hdrsize,
10977 attrbuf, nl80211_fam.maxattr,
10978 nl80211_policy, NULL);
10979 if (err)
10980 goto out_err;
10981
10982 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
10983 if (IS_ERR(rdev)) {
10984 err = PTR_ERR(rdev);
10985 goto out_err;
10986 }
10987 phy_idx = rdev->wiphy_idx;
10988
10989 if (attrbuf[NL80211_ATTR_TESTDATA])
10990 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
10991 }
10992
10993 if (cb->args[1]) {
10994 data = nla_data((void *)cb->args[1]);
10995 data_len = nla_len((void *)cb->args[1]);
10996 }
10997
10998 if (!rdev->ops->testmode_dump) {
10999 err = -EOPNOTSUPP;
11000 goto out_err;
11001 }
11002
11003 while (1) {
11004 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11005 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11006 NL80211_CMD_TESTMODE);
11007 struct nlattr *tmdata;
11008
11009 if (!hdr)
11010 break;
11011
11012 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
11013 genlmsg_cancel(skb, hdr);
11014 break;
11015 }
11016
11017 tmdata = nla_nest_start_noflag(skb, NL80211_ATTR_TESTDATA);
11018 if (!tmdata) {
11019 genlmsg_cancel(skb, hdr);
11020 break;
11021 }
11022 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
11023 nla_nest_end(skb, tmdata);
11024
11025 if (err == -ENOBUFS || err == -ENOENT) {
11026 genlmsg_cancel(skb, hdr);
11027 break;
11028 } else if (err) {
11029 genlmsg_cancel(skb, hdr);
11030 goto out_err;
11031 }
11032
11033 genlmsg_end(skb, hdr);
11034 }
11035
11036 err = skb->len;
11037
11038 cb->args[0] = phy_idx + 1;
11039 out_err:
11040 kfree(attrbuf);
11041 rtnl_unlock();
11042 return err;
11043}
11044#endif
11045
11046static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
11047{
11048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11049 struct net_device *dev = info->user_ptr[1];
11050 struct cfg80211_connect_params connect;
11051 struct wiphy *wiphy;
11052 struct cfg80211_cached_keys *connkeys = NULL;
11053 u32 freq = 0;
11054 int err;
11055
11056 memset(&connect, 0, sizeof(connect));
11057
11058 if (!info->attrs[NL80211_ATTR_SSID] ||
11059 !nla_len(info->attrs[NL80211_ATTR_SSID]))
11060 return -EINVAL;
11061
11062 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
11063 connect.auth_type =
11064 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
11065 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
11066 NL80211_CMD_CONNECT))
11067 return -EINVAL;
11068 } else
11069 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
11070
11071 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
11072
11073 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
11074 !wiphy_ext_feature_isset(&rdev->wiphy,
11075 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
11076 return -EINVAL;
11077 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
11078
11079 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
11080 NL80211_MAX_NR_CIPHER_SUITES);
11081 if (err)
11082 return err;
11083
11084 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
11085 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
11086 return -EOPNOTSUPP;
11087
11088 wiphy = &rdev->wiphy;
11089
11090 connect.bg_scan_period = -1;
11091 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
11092 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
11093 connect.bg_scan_period =
11094 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
11095 }
11096
11097 if (info->attrs[NL80211_ATTR_MAC])
11098 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
11099 else if (info->attrs[NL80211_ATTR_MAC_HINT])
11100 connect.bssid_hint =
11101 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
11102 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
11103 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
11104
11105 if (info->attrs[NL80211_ATTR_IE]) {
11106 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11107 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11108 }
11109
11110 if (info->attrs[NL80211_ATTR_USE_MFP]) {
11111 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
11112 if (connect.mfp == NL80211_MFP_OPTIONAL &&
11113 !wiphy_ext_feature_isset(&rdev->wiphy,
11114 NL80211_EXT_FEATURE_MFP_OPTIONAL))
11115 return -EOPNOTSUPP;
11116 } else {
11117 connect.mfp = NL80211_MFP_NO;
11118 }
11119
11120 if (info->attrs[NL80211_ATTR_PREV_BSSID])
11121 connect.prev_bssid =
11122 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
11123
11124 if (info->attrs[NL80211_ATTR_WIPHY_FREQ])
11125 freq = MHZ_TO_KHZ(nla_get_u32(
11126 info->attrs[NL80211_ATTR_WIPHY_FREQ]));
11127 if (info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET])
11128 freq +=
11129 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_OFFSET]);
11130
11131 if (freq) {
11132 connect.channel = nl80211_get_valid_chan(wiphy, freq);
11133 if (!connect.channel)
11134 return -EINVAL;
11135 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
11136 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
11137 freq = MHZ_TO_KHZ(freq);
11138 connect.channel_hint = nl80211_get_valid_chan(wiphy, freq);
11139 if (!connect.channel_hint)
11140 return -EINVAL;
11141 }
11142
11143 if (info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]) {
11144 connect.edmg.channels =
11145 nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_CHANNELS]);
11146
11147 if (info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG])
11148 connect.edmg.bw_config =
11149 nla_get_u8(info->attrs[NL80211_ATTR_WIPHY_EDMG_BW_CONFIG]);
11150 }
11151
11152 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
11153 connkeys = nl80211_parse_connkeys(rdev, info, NULL);
11154 if (IS_ERR(connkeys))
11155 return PTR_ERR(connkeys);
11156 }
11157
11158 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
11159 connect.flags |= ASSOC_REQ_DISABLE_HT;
11160
11161 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
11162 memcpy(&connect.ht_capa_mask,
11163 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
11164 sizeof(connect.ht_capa_mask));
11165
11166 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
11167 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
11168 kfree_sensitive(connkeys);
11169 return -EINVAL;
11170 }
11171 memcpy(&connect.ht_capa,
11172 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
11173 sizeof(connect.ht_capa));
11174 }
11175
11176 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
11177 connect.flags |= ASSOC_REQ_DISABLE_VHT;
11178
11179 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HE]))
11180 connect.flags |= ASSOC_REQ_DISABLE_HE;
11181
11182 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_EHT]))
11183 connect.flags |= ASSOC_REQ_DISABLE_EHT;
11184
11185 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
11186 memcpy(&connect.vht_capa_mask,
11187 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
11188 sizeof(connect.vht_capa_mask));
11189
11190 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
11191 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
11192 kfree_sensitive(connkeys);
11193 return -EINVAL;
11194 }
11195 memcpy(&connect.vht_capa,
11196 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
11197 sizeof(connect.vht_capa));
11198 }
11199
11200 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
11201 if (!((rdev->wiphy.features &
11202 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
11203 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
11204 !wiphy_ext_feature_isset(&rdev->wiphy,
11205 NL80211_EXT_FEATURE_RRM)) {
11206 kfree_sensitive(connkeys);
11207 return -EINVAL;
11208 }
11209 connect.flags |= ASSOC_REQ_USE_RRM;
11210 }
11211
11212 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
11213 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
11214 kfree_sensitive(connkeys);
11215 return -EOPNOTSUPP;
11216 }
11217
11218 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
11219
11220 if (connect.bssid) {
11221 kfree_sensitive(connkeys);
11222 return -EINVAL;
11223 }
11224
11225 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
11226 wiphy, &connect.bss_select);
11227 if (err) {
11228 kfree_sensitive(connkeys);
11229 return err;
11230 }
11231 }
11232
11233 if (wiphy_ext_feature_isset(&rdev->wiphy,
11234 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
11235 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
11236 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
11237 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
11238 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
11239 connect.fils_erp_username =
11240 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
11241 connect.fils_erp_username_len =
11242 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
11243 connect.fils_erp_realm =
11244 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
11245 connect.fils_erp_realm_len =
11246 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
11247 connect.fils_erp_next_seq_num =
11248 nla_get_u16(
11249 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
11250 connect.fils_erp_rrk =
11251 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
11252 connect.fils_erp_rrk_len =
11253 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
11254 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
11255 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
11256 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
11257 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
11258 kfree_sensitive(connkeys);
11259 return -EINVAL;
11260 }
11261
11262 if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) {
11263 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
11264 kfree_sensitive(connkeys);
11265 GENL_SET_ERR_MSG(info,
11266 "external auth requires connection ownership");
11267 return -EINVAL;
11268 }
11269 connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT;
11270 }
11271
11272 wdev_lock(dev->ieee80211_ptr);
11273
11274 err = cfg80211_connect(rdev, dev, &connect, connkeys,
11275 connect.prev_bssid);
11276 if (err)
11277 kfree_sensitive(connkeys);
11278
11279 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
11280 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
11281 if (connect.bssid)
11282 memcpy(dev->ieee80211_ptr->disconnect_bssid,
11283 connect.bssid, ETH_ALEN);
11284 else
11285 eth_zero_addr(dev->ieee80211_ptr->disconnect_bssid);
11286 }
11287
11288 wdev_unlock(dev->ieee80211_ptr);
11289
11290 return err;
11291}
11292
11293static int nl80211_update_connect_params(struct sk_buff *skb,
11294 struct genl_info *info)
11295{
11296 struct cfg80211_connect_params connect = {};
11297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11298 struct net_device *dev = info->user_ptr[1];
11299 struct wireless_dev *wdev = dev->ieee80211_ptr;
11300 bool fils_sk_offload;
11301 u32 auth_type;
11302 u32 changed = 0;
11303 int ret;
11304
11305 if (!rdev->ops->update_connect_params)
11306 return -EOPNOTSUPP;
11307
11308 if (info->attrs[NL80211_ATTR_IE]) {
11309 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11310 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11311 changed |= UPDATE_ASSOC_IES;
11312 }
11313
11314 fils_sk_offload = wiphy_ext_feature_isset(&rdev->wiphy,
11315 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD);
11316
11317
11318
11319
11320
11321
11322 if (fils_sk_offload &&
11323 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
11324 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
11325 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
11326 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
11327 connect.fils_erp_username =
11328 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
11329 connect.fils_erp_username_len =
11330 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
11331 connect.fils_erp_realm =
11332 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
11333 connect.fils_erp_realm_len =
11334 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
11335 connect.fils_erp_next_seq_num =
11336 nla_get_u16(
11337 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
11338 connect.fils_erp_rrk =
11339 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
11340 connect.fils_erp_rrk_len =
11341 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
11342 changed |= UPDATE_FILS_ERP_INFO;
11343 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
11344 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
11345 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
11346 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
11347 return -EINVAL;
11348 }
11349
11350 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
11351 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
11352 if (!nl80211_valid_auth_type(rdev, auth_type,
11353 NL80211_CMD_CONNECT))
11354 return -EINVAL;
11355
11356 if (auth_type == NL80211_AUTHTYPE_FILS_SK &&
11357 fils_sk_offload && !(changed & UPDATE_FILS_ERP_INFO))
11358 return -EINVAL;
11359
11360 connect.auth_type = auth_type;
11361 changed |= UPDATE_AUTH_TYPE;
11362 }
11363
11364 wdev_lock(dev->ieee80211_ptr);
11365 if (!wdev->current_bss)
11366 ret = -ENOLINK;
11367 else
11368 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
11369 wdev_unlock(dev->ieee80211_ptr);
11370
11371 return ret;
11372}
11373
11374static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
11375{
11376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11377 struct net_device *dev = info->user_ptr[1];
11378 u16 reason;
11379 int ret;
11380
11381 if (dev->ieee80211_ptr->conn_owner_nlportid &&
11382 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
11383 return -EPERM;
11384
11385 if (!info->attrs[NL80211_ATTR_REASON_CODE])
11386 reason = WLAN_REASON_DEAUTH_LEAVING;
11387 else
11388 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
11389
11390 if (reason == 0)
11391 return -EINVAL;
11392
11393 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
11394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
11395 return -EOPNOTSUPP;
11396
11397 wdev_lock(dev->ieee80211_ptr);
11398 ret = cfg80211_disconnect(rdev, dev, reason, true);
11399 wdev_unlock(dev->ieee80211_ptr);
11400 return ret;
11401}
11402
11403static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
11404{
11405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11406 struct net *net;
11407 int err;
11408
11409 if (info->attrs[NL80211_ATTR_PID]) {
11410 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
11411
11412 net = get_net_ns_by_pid(pid);
11413 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
11414 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
11415
11416 net = get_net_ns_by_fd(fd);
11417 } else {
11418 return -EINVAL;
11419 }
11420
11421 if (IS_ERR(net))
11422 return PTR_ERR(net);
11423
11424 err = 0;
11425
11426
11427 if (!net_eq(wiphy_net(&rdev->wiphy), net))
11428 err = cfg80211_switch_netns(rdev, net);
11429
11430 put_net(net);
11431 return err;
11432}
11433
11434static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
11435{
11436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11437 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
11438 struct cfg80211_pmksa *pmksa) = NULL;
11439 struct net_device *dev = info->user_ptr[1];
11440 struct cfg80211_pmksa pmksa;
11441
11442 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
11443
11444 if (!info->attrs[NL80211_ATTR_PMKID])
11445 return -EINVAL;
11446
11447 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
11448
11449 if (info->attrs[NL80211_ATTR_MAC]) {
11450 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
11451 } else if (info->attrs[NL80211_ATTR_SSID] &&
11452 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
11453 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
11454 info->attrs[NL80211_ATTR_PMK])) {
11455 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
11456 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
11457 pmksa.cache_id =
11458 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
11459 } else {
11460 return -EINVAL;
11461 }
11462 if (info->attrs[NL80211_ATTR_PMK]) {
11463 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
11464 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
11465 }
11466
11467 if (info->attrs[NL80211_ATTR_PMK_LIFETIME])
11468 pmksa.pmk_lifetime =
11469 nla_get_u32(info->attrs[NL80211_ATTR_PMK_LIFETIME]);
11470
11471 if (info->attrs[NL80211_ATTR_PMK_REAUTH_THRESHOLD])
11472 pmksa.pmk_reauth_threshold =
11473 nla_get_u8(
11474 info->attrs[NL80211_ATTR_PMK_REAUTH_THRESHOLD]);
11475
11476 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
11477 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
11478 !(dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP &&
11479 wiphy_ext_feature_isset(&rdev->wiphy,
11480 NL80211_EXT_FEATURE_AP_PMKSA_CACHING)))
11481 return -EOPNOTSUPP;
11482
11483 switch (info->genlhdr->cmd) {
11484 case NL80211_CMD_SET_PMKSA:
11485 rdev_ops = rdev->ops->set_pmksa;
11486 break;
11487 case NL80211_CMD_DEL_PMKSA:
11488 rdev_ops = rdev->ops->del_pmksa;
11489 break;
11490 default:
11491 WARN_ON(1);
11492 break;
11493 }
11494
11495 if (!rdev_ops)
11496 return -EOPNOTSUPP;
11497
11498 return rdev_ops(&rdev->wiphy, dev, &pmksa);
11499}
11500
11501static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
11502{
11503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11504 struct net_device *dev = info->user_ptr[1];
11505
11506 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
11507 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
11508 return -EOPNOTSUPP;
11509
11510 if (!rdev->ops->flush_pmksa)
11511 return -EOPNOTSUPP;
11512
11513 return rdev_flush_pmksa(rdev, dev);
11514}
11515
11516static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
11517{
11518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11519 struct net_device *dev = info->user_ptr[1];
11520 u8 action_code, dialog_token;
11521 u32 peer_capability = 0;
11522 u16 status_code;
11523 u8 *peer;
11524 bool initiator;
11525
11526 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
11527 !rdev->ops->tdls_mgmt)
11528 return -EOPNOTSUPP;
11529
11530 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
11531 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
11532 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
11533 !info->attrs[NL80211_ATTR_IE] ||
11534 !info->attrs[NL80211_ATTR_MAC])
11535 return -EINVAL;
11536
11537 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11538 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
11539 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
11540 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
11541 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
11542 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
11543 peer_capability =
11544 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
11545
11546 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
11547 dialog_token, status_code, peer_capability,
11548 initiator,
11549 nla_data(info->attrs[NL80211_ATTR_IE]),
11550 nla_len(info->attrs[NL80211_ATTR_IE]));
11551}
11552
11553static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
11554{
11555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11556 struct net_device *dev = info->user_ptr[1];
11557 enum nl80211_tdls_operation operation;
11558 u8 *peer;
11559
11560 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
11561 !rdev->ops->tdls_oper)
11562 return -EOPNOTSUPP;
11563
11564 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
11565 !info->attrs[NL80211_ATTR_MAC])
11566 return -EINVAL;
11567
11568 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
11569 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11570
11571 return rdev_tdls_oper(rdev, dev, peer, operation);
11572}
11573
11574static int nl80211_remain_on_channel(struct sk_buff *skb,
11575 struct genl_info *info)
11576{
11577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11578 struct wireless_dev *wdev = info->user_ptr[1];
11579 struct cfg80211_chan_def chandef;
11580 const struct cfg80211_chan_def *compat_chandef;
11581 struct sk_buff *msg;
11582 void *hdr;
11583 u64 cookie;
11584 u32 duration;
11585 int err;
11586
11587 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
11588 !info->attrs[NL80211_ATTR_DURATION])
11589 return -EINVAL;
11590
11591 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
11592
11593 if (!rdev->ops->remain_on_channel ||
11594 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
11595 return -EOPNOTSUPP;
11596
11597
11598
11599
11600
11601 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
11602 duration > rdev->wiphy.max_remain_on_channel_duration)
11603 return -EINVAL;
11604
11605 err = nl80211_parse_chandef(rdev, info, &chandef);
11606 if (err)
11607 return err;
11608
11609 wdev_lock(wdev);
11610 if (!cfg80211_off_channel_oper_allowed(wdev) &&
11611 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
11612 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
11613 &chandef);
11614 if (compat_chandef != &chandef) {
11615 wdev_unlock(wdev);
11616 return -EBUSY;
11617 }
11618 }
11619 wdev_unlock(wdev);
11620
11621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11622 if (!msg)
11623 return -ENOMEM;
11624
11625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11626 NL80211_CMD_REMAIN_ON_CHANNEL);
11627 if (!hdr) {
11628 err = -ENOBUFS;
11629 goto free_msg;
11630 }
11631
11632 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
11633 duration, &cookie);
11634
11635 if (err)
11636 goto free_msg;
11637
11638 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11639 NL80211_ATTR_PAD))
11640 goto nla_put_failure;
11641
11642 genlmsg_end(msg, hdr);
11643
11644 return genlmsg_reply(msg, info);
11645
11646 nla_put_failure:
11647 err = -ENOBUFS;
11648 free_msg:
11649 nlmsg_free(msg);
11650 return err;
11651}
11652
11653static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
11654 struct genl_info *info)
11655{
11656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11657 struct wireless_dev *wdev = info->user_ptr[1];
11658 u64 cookie;
11659
11660 if (!info->attrs[NL80211_ATTR_COOKIE])
11661 return -EINVAL;
11662
11663 if (!rdev->ops->cancel_remain_on_channel)
11664 return -EOPNOTSUPP;
11665
11666 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11667
11668 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
11669}
11670
11671static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
11672 struct genl_info *info)
11673{
11674 struct cfg80211_bitrate_mask mask;
11675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11676 struct net_device *dev = info->user_ptr[1];
11677 struct wireless_dev *wdev = dev->ieee80211_ptr;
11678 int err;
11679
11680 if (!rdev->ops->set_bitrate_mask)
11681 return -EOPNOTSUPP;
11682
11683 wdev_lock(wdev);
11684 err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
11685 NL80211_ATTR_TX_RATES, &mask,
11686 dev, true);
11687 if (err)
11688 goto out;
11689
11690 err = rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
11691out:
11692 wdev_unlock(wdev);
11693 return err;
11694}
11695
11696static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
11697{
11698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11699 struct wireless_dev *wdev = info->user_ptr[1];
11700 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
11701
11702 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
11703 return -EINVAL;
11704
11705 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
11706 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
11707
11708 switch (wdev->iftype) {
11709 case NL80211_IFTYPE_STATION:
11710 case NL80211_IFTYPE_ADHOC:
11711 case NL80211_IFTYPE_P2P_CLIENT:
11712 case NL80211_IFTYPE_AP:
11713 case NL80211_IFTYPE_AP_VLAN:
11714 case NL80211_IFTYPE_MESH_POINT:
11715 case NL80211_IFTYPE_P2P_GO:
11716 case NL80211_IFTYPE_P2P_DEVICE:
11717 break;
11718 case NL80211_IFTYPE_NAN:
11719 default:
11720 return -EOPNOTSUPP;
11721 }
11722
11723
11724 if (!rdev->ops->mgmt_tx)
11725 return -EOPNOTSUPP;
11726
11727 if (info->attrs[NL80211_ATTR_RECEIVE_MULTICAST] &&
11728 !wiphy_ext_feature_isset(&rdev->wiphy,
11729 NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS)) {
11730 GENL_SET_ERR_MSG(info,
11731 "multicast RX registrations are not supported");
11732 return -EOPNOTSUPP;
11733 }
11734
11735 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
11736 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
11737 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]),
11738 info->attrs[NL80211_ATTR_RECEIVE_MULTICAST],
11739 info->extack);
11740}
11741
11742static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
11743{
11744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11745 struct wireless_dev *wdev = info->user_ptr[1];
11746 struct cfg80211_chan_def chandef;
11747 int err;
11748 void *hdr = NULL;
11749 u64 cookie;
11750 struct sk_buff *msg = NULL;
11751 struct cfg80211_mgmt_tx_params params = {
11752 .dont_wait_for_ack =
11753 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
11754 };
11755
11756 if (!info->attrs[NL80211_ATTR_FRAME])
11757 return -EINVAL;
11758
11759 if (!rdev->ops->mgmt_tx)
11760 return -EOPNOTSUPP;
11761
11762 switch (wdev->iftype) {
11763 case NL80211_IFTYPE_P2P_DEVICE:
11764 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
11765 return -EINVAL;
11766 break;
11767 case NL80211_IFTYPE_STATION:
11768 case NL80211_IFTYPE_ADHOC:
11769 case NL80211_IFTYPE_P2P_CLIENT:
11770 case NL80211_IFTYPE_AP:
11771 case NL80211_IFTYPE_AP_VLAN:
11772 case NL80211_IFTYPE_MESH_POINT:
11773 case NL80211_IFTYPE_P2P_GO:
11774 break;
11775 case NL80211_IFTYPE_NAN:
11776 default:
11777 return -EOPNOTSUPP;
11778 }
11779
11780 if (info->attrs[NL80211_ATTR_DURATION]) {
11781 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
11782 return -EINVAL;
11783 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
11784
11785
11786
11787
11788
11789 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
11790 params.wait > rdev->wiphy.max_remain_on_channel_duration)
11791 return -EINVAL;
11792 }
11793
11794 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
11795
11796 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
11797 return -EINVAL;
11798
11799 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
11800
11801
11802
11803
11804 chandef.chan = NULL;
11805 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
11806 err = nl80211_parse_chandef(rdev, info, &chandef);
11807 if (err)
11808 return err;
11809 }
11810
11811 if (!chandef.chan && params.offchan)
11812 return -EINVAL;
11813
11814 wdev_lock(wdev);
11815 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
11816 wdev_unlock(wdev);
11817 return -EBUSY;
11818 }
11819 wdev_unlock(wdev);
11820
11821 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
11822 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
11823
11824 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
11825 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
11826 int i;
11827
11828 if (len % sizeof(u16))
11829 return -EINVAL;
11830
11831 params.n_csa_offsets = len / sizeof(u16);
11832 params.csa_offsets =
11833 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
11834
11835
11836 for (i = 0; i < params.n_csa_offsets; i++) {
11837 if (params.csa_offsets[i] >= params.len)
11838 return -EINVAL;
11839 }
11840 }
11841
11842 if (!params.dont_wait_for_ack) {
11843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11844 if (!msg)
11845 return -ENOMEM;
11846
11847 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11848 NL80211_CMD_FRAME);
11849 if (!hdr) {
11850 err = -ENOBUFS;
11851 goto free_msg;
11852 }
11853 }
11854
11855 params.chan = chandef.chan;
11856 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
11857 if (err)
11858 goto free_msg;
11859
11860 if (msg) {
11861 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11862 NL80211_ATTR_PAD))
11863 goto nla_put_failure;
11864
11865 genlmsg_end(msg, hdr);
11866 return genlmsg_reply(msg, info);
11867 }
11868
11869 return 0;
11870
11871 nla_put_failure:
11872 err = -ENOBUFS;
11873 free_msg:
11874 nlmsg_free(msg);
11875 return err;
11876}
11877
11878static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
11879{
11880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11881 struct wireless_dev *wdev = info->user_ptr[1];
11882 u64 cookie;
11883
11884 if (!info->attrs[NL80211_ATTR_COOKIE])
11885 return -EINVAL;
11886
11887 if (!rdev->ops->mgmt_tx_cancel_wait)
11888 return -EOPNOTSUPP;
11889
11890 switch (wdev->iftype) {
11891 case NL80211_IFTYPE_STATION:
11892 case NL80211_IFTYPE_ADHOC:
11893 case NL80211_IFTYPE_P2P_CLIENT:
11894 case NL80211_IFTYPE_AP:
11895 case NL80211_IFTYPE_AP_VLAN:
11896 case NL80211_IFTYPE_P2P_GO:
11897 case NL80211_IFTYPE_P2P_DEVICE:
11898 break;
11899 case NL80211_IFTYPE_NAN:
11900 default:
11901 return -EOPNOTSUPP;
11902 }
11903
11904 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11905
11906 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
11907}
11908
11909static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
11910{
11911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11912 struct wireless_dev *wdev;
11913 struct net_device *dev = info->user_ptr[1];
11914 u8 ps_state;
11915 bool state;
11916 int err;
11917
11918 if (!info->attrs[NL80211_ATTR_PS_STATE])
11919 return -EINVAL;
11920
11921 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
11922
11923 wdev = dev->ieee80211_ptr;
11924
11925 if (!rdev->ops->set_power_mgmt)
11926 return -EOPNOTSUPP;
11927
11928 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
11929
11930 if (state == wdev->ps)
11931 return 0;
11932
11933 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
11934 if (!err)
11935 wdev->ps = state;
11936 return err;
11937}
11938
11939static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
11940{
11941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11942 enum nl80211_ps_state ps_state;
11943 struct wireless_dev *wdev;
11944 struct net_device *dev = info->user_ptr[1];
11945 struct sk_buff *msg;
11946 void *hdr;
11947 int err;
11948
11949 wdev = dev->ieee80211_ptr;
11950
11951 if (!rdev->ops->set_power_mgmt)
11952 return -EOPNOTSUPP;
11953
11954 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11955 if (!msg)
11956 return -ENOMEM;
11957
11958 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11959 NL80211_CMD_GET_POWER_SAVE);
11960 if (!hdr) {
11961 err = -ENOBUFS;
11962 goto free_msg;
11963 }
11964
11965 if (wdev->ps)
11966 ps_state = NL80211_PS_ENABLED;
11967 else
11968 ps_state = NL80211_PS_DISABLED;
11969
11970 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
11971 goto nla_put_failure;
11972
11973 genlmsg_end(msg, hdr);
11974 return genlmsg_reply(msg, info);
11975
11976 nla_put_failure:
11977 err = -ENOBUFS;
11978 free_msg:
11979 nlmsg_free(msg);
11980 return err;
11981}
11982
11983static const struct nla_policy
11984nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
11985 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
11986 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
11987 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
11988 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
11989 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
11990 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
11991 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
11992};
11993
11994static int nl80211_set_cqm_txe(struct genl_info *info,
11995 u32 rate, u32 pkts, u32 intvl)
11996{
11997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11998 struct net_device *dev = info->user_ptr[1];
11999 struct wireless_dev *wdev = dev->ieee80211_ptr;
12000
12001 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
12002 return -EINVAL;
12003
12004 if (!rdev->ops->set_cqm_txe_config)
12005 return -EOPNOTSUPP;
12006
12007 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12008 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12009 return -EOPNOTSUPP;
12010
12011 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
12012}
12013
12014static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
12015 struct net_device *dev)
12016{
12017 struct wireless_dev *wdev = dev->ieee80211_ptr;
12018 s32 last, low, high;
12019 u32 hyst;
12020 int i, n, low_index;
12021 int err;
12022
12023
12024 if (!wdev->cqm_config)
12025 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
12026
12027
12028
12029
12030
12031
12032
12033 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
12034 rdev->ops->get_station) {
12035 struct station_info sinfo = {};
12036 u8 *mac_addr;
12037
12038 mac_addr = wdev->current_bss->pub.bssid;
12039
12040 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
12041 if (err)
12042 return err;
12043
12044 cfg80211_sinfo_release_content(&sinfo);
12045 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
12046 wdev->cqm_config->last_rssi_event_value =
12047 (s8) sinfo.rx_beacon_signal_avg;
12048 }
12049
12050 last = wdev->cqm_config->last_rssi_event_value;
12051 hyst = wdev->cqm_config->rssi_hyst;
12052 n = wdev->cqm_config->n_rssi_thresholds;
12053
12054 for (i = 0; i < n; i++) {
12055 i = array_index_nospec(i, n);
12056 if (last < wdev->cqm_config->rssi_thresholds[i])
12057 break;
12058 }
12059
12060 low_index = i - 1;
12061 if (low_index >= 0) {
12062 low_index = array_index_nospec(low_index, n);
12063 low = wdev->cqm_config->rssi_thresholds[low_index] - hyst;
12064 } else {
12065 low = S32_MIN;
12066 }
12067 if (i < n) {
12068 i = array_index_nospec(i, n);
12069 high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1;
12070 } else {
12071 high = S32_MAX;
12072 }
12073
12074 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
12075}
12076
12077static int nl80211_set_cqm_rssi(struct genl_info *info,
12078 const s32 *thresholds, int n_thresholds,
12079 u32 hysteresis)
12080{
12081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12082 struct net_device *dev = info->user_ptr[1];
12083 struct wireless_dev *wdev = dev->ieee80211_ptr;
12084 int i, err;
12085 s32 prev = S32_MIN;
12086
12087
12088 for (i = 0; i < n_thresholds; i++) {
12089 if (thresholds[i] > 0 || thresholds[i] <= prev)
12090 return -EINVAL;
12091
12092 prev = thresholds[i];
12093 }
12094
12095 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12096 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12097 return -EOPNOTSUPP;
12098
12099 wdev_lock(wdev);
12100 cfg80211_cqm_config_free(wdev);
12101 wdev_unlock(wdev);
12102
12103 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
12104 if (n_thresholds == 0 || thresholds[0] == 0)
12105 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
12106
12107 return rdev_set_cqm_rssi_config(rdev, dev,
12108 thresholds[0], hysteresis);
12109 }
12110
12111 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12112 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
12113 return -EOPNOTSUPP;
12114
12115 if (n_thresholds == 1 && thresholds[0] == 0)
12116 n_thresholds = 0;
12117
12118 wdev_lock(wdev);
12119 if (n_thresholds) {
12120 struct cfg80211_cqm_config *cqm_config;
12121
12122 cqm_config = kzalloc(struct_size(cqm_config, rssi_thresholds,
12123 n_thresholds),
12124 GFP_KERNEL);
12125 if (!cqm_config) {
12126 err = -ENOMEM;
12127 goto unlock;
12128 }
12129
12130 cqm_config->rssi_hyst = hysteresis;
12131 cqm_config->n_rssi_thresholds = n_thresholds;
12132 memcpy(cqm_config->rssi_thresholds, thresholds,
12133 flex_array_size(cqm_config, rssi_thresholds,
12134 n_thresholds));
12135
12136 wdev->cqm_config = cqm_config;
12137 }
12138
12139 err = cfg80211_cqm_rssi_update(rdev, dev);
12140
12141unlock:
12142 wdev_unlock(wdev);
12143
12144 return err;
12145}
12146
12147static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
12148{
12149 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
12150 struct nlattr *cqm;
12151 int err;
12152
12153 cqm = info->attrs[NL80211_ATTR_CQM];
12154 if (!cqm)
12155 return -EINVAL;
12156
12157 err = nla_parse_nested_deprecated(attrs, NL80211_ATTR_CQM_MAX, cqm,
12158 nl80211_attr_cqm_policy,
12159 info->extack);
12160 if (err)
12161 return err;
12162
12163 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
12164 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
12165 const s32 *thresholds =
12166 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
12167 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
12168 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
12169
12170 if (len % 4)
12171 return -EINVAL;
12172
12173 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
12174 hysteresis);
12175 }
12176
12177 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
12178 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
12179 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
12180 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
12181 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
12182 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
12183
12184 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
12185 }
12186
12187 return -EINVAL;
12188}
12189
12190static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
12191{
12192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12193 struct net_device *dev = info->user_ptr[1];
12194 struct ocb_setup setup = {};
12195 int err;
12196
12197 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
12198 if (err)
12199 return err;
12200
12201 return cfg80211_join_ocb(rdev, dev, &setup);
12202}
12203
12204static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
12205{
12206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12207 struct net_device *dev = info->user_ptr[1];
12208
12209 return cfg80211_leave_ocb(rdev, dev);
12210}
12211
12212static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
12213{
12214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12215 struct net_device *dev = info->user_ptr[1];
12216 struct mesh_config cfg;
12217 struct mesh_setup setup;
12218 int err;
12219
12220
12221 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
12222 memcpy(&setup, &default_mesh_setup, sizeof(setup));
12223
12224 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
12225
12226 err = nl80211_parse_mesh_config(info, &cfg, NULL);
12227 if (err)
12228 return err;
12229 }
12230
12231 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
12232 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
12233 return -EINVAL;
12234
12235 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
12236 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
12237
12238 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
12239 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
12240 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
12241 return -EINVAL;
12242
12243 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
12244 setup.beacon_interval =
12245 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
12246
12247 err = cfg80211_validate_beacon_int(rdev,
12248 NL80211_IFTYPE_MESH_POINT,
12249 setup.beacon_interval);
12250 if (err)
12251 return err;
12252 }
12253
12254 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
12255 setup.dtim_period =
12256 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
12257 if (setup.dtim_period < 1 || setup.dtim_period > 100)
12258 return -EINVAL;
12259 }
12260
12261 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
12262
12263 err = nl80211_parse_mesh_setup(info, &setup);
12264 if (err)
12265 return err;
12266 }
12267
12268 if (setup.user_mpm)
12269 cfg.auto_open_plinks = false;
12270
12271 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
12272 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
12273 if (err)
12274 return err;
12275 } else {
12276
12277 setup.chandef.chan = NULL;
12278 }
12279
12280 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
12281 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
12282 int n_rates =
12283 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
12284 struct ieee80211_supported_band *sband;
12285
12286 if (!setup.chandef.chan)
12287 return -EINVAL;
12288
12289 sband = rdev->wiphy.bands[setup.chandef.chan->band];
12290
12291 err = ieee80211_get_ratemask(sband, rates, n_rates,
12292 &setup.basic_rates);
12293 if (err)
12294 return err;
12295 }
12296
12297 if (info->attrs[NL80211_ATTR_TX_RATES]) {
12298 err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
12299 NL80211_ATTR_TX_RATES,
12300 &setup.beacon_rate,
12301 dev, false);
12302 if (err)
12303 return err;
12304
12305 if (!setup.chandef.chan)
12306 return -EINVAL;
12307
12308 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
12309 &setup.beacon_rate);
12310 if (err)
12311 return err;
12312 }
12313
12314 setup.userspace_handles_dfs =
12315 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
12316
12317 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
12318 int r = validate_pae_over_nl80211(rdev, info);
12319
12320 if (r < 0)
12321 return r;
12322
12323 setup.control_port_over_nl80211 = true;
12324 }
12325
12326 wdev_lock(dev->ieee80211_ptr);
12327 err = __cfg80211_join_mesh(rdev, dev, &setup, &cfg);
12328 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER])
12329 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
12330 wdev_unlock(dev->ieee80211_ptr);
12331
12332 return err;
12333}
12334
12335static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
12336{
12337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12338 struct net_device *dev = info->user_ptr[1];
12339
12340 return cfg80211_leave_mesh(rdev, dev);
12341}
12342
12343#ifdef CONFIG_PM
12344static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
12345 struct cfg80211_registered_device *rdev)
12346{
12347 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
12348 struct nlattr *nl_pats, *nl_pat;
12349 int i, pat_len;
12350
12351 if (!wowlan->n_patterns)
12352 return 0;
12353
12354 nl_pats = nla_nest_start_noflag(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
12355 if (!nl_pats)
12356 return -ENOBUFS;
12357
12358 for (i = 0; i < wowlan->n_patterns; i++) {
12359 nl_pat = nla_nest_start_noflag(msg, i + 1);
12360 if (!nl_pat)
12361 return -ENOBUFS;
12362 pat_len = wowlan->patterns[i].pattern_len;
12363 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
12364 wowlan->patterns[i].mask) ||
12365 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
12366 wowlan->patterns[i].pattern) ||
12367 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
12368 wowlan->patterns[i].pkt_offset))
12369 return -ENOBUFS;
12370 nla_nest_end(msg, nl_pat);
12371 }
12372 nla_nest_end(msg, nl_pats);
12373
12374 return 0;
12375}
12376
12377static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
12378 struct cfg80211_wowlan_tcp *tcp)
12379{
12380 struct nlattr *nl_tcp;
12381
12382 if (!tcp)
12383 return 0;
12384
12385 nl_tcp = nla_nest_start_noflag(msg,
12386 NL80211_WOWLAN_TRIG_TCP_CONNECTION);
12387 if (!nl_tcp)
12388 return -ENOBUFS;
12389
12390 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
12391 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
12392 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
12393 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
12394 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
12395 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
12396 tcp->payload_len, tcp->payload) ||
12397 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
12398 tcp->data_interval) ||
12399 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
12400 tcp->wake_len, tcp->wake_data) ||
12401 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
12402 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
12403 return -ENOBUFS;
12404
12405 if (tcp->payload_seq.len &&
12406 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
12407 sizeof(tcp->payload_seq), &tcp->payload_seq))
12408 return -ENOBUFS;
12409
12410 if (tcp->payload_tok.len &&
12411 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
12412 sizeof(tcp->payload_tok) + tcp->tokens_size,
12413 &tcp->payload_tok))
12414 return -ENOBUFS;
12415
12416 nla_nest_end(msg, nl_tcp);
12417
12418 return 0;
12419}
12420
12421static int nl80211_send_wowlan_nd(struct sk_buff *msg,
12422 struct cfg80211_sched_scan_request *req)
12423{
12424 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
12425 int i;
12426
12427 if (!req)
12428 return 0;
12429
12430 nd = nla_nest_start_noflag(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
12431 if (!nd)
12432 return -ENOBUFS;
12433
12434 if (req->n_scan_plans == 1 &&
12435 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
12436 req->scan_plans[0].interval * 1000))
12437 return -ENOBUFS;
12438
12439 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
12440 return -ENOBUFS;
12441
12442 if (req->relative_rssi_set) {
12443 struct nl80211_bss_select_rssi_adjust rssi_adjust;
12444
12445 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
12446 req->relative_rssi))
12447 return -ENOBUFS;
12448
12449 rssi_adjust.band = req->rssi_adjust.band;
12450 rssi_adjust.delta = req->rssi_adjust.delta;
12451 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
12452 sizeof(rssi_adjust), &rssi_adjust))
12453 return -ENOBUFS;
12454 }
12455
12456 freqs = nla_nest_start_noflag(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12457 if (!freqs)
12458 return -ENOBUFS;
12459
12460 for (i = 0; i < req->n_channels; i++) {
12461 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12462 return -ENOBUFS;
12463 }
12464
12465 nla_nest_end(msg, freqs);
12466
12467 if (req->n_match_sets) {
12468 matches = nla_nest_start_noflag(msg,
12469 NL80211_ATTR_SCHED_SCAN_MATCH);
12470 if (!matches)
12471 return -ENOBUFS;
12472
12473 for (i = 0; i < req->n_match_sets; i++) {
12474 match = nla_nest_start_noflag(msg, i);
12475 if (!match)
12476 return -ENOBUFS;
12477
12478 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
12479 req->match_sets[i].ssid.ssid_len,
12480 req->match_sets[i].ssid.ssid))
12481 return -ENOBUFS;
12482 nla_nest_end(msg, match);
12483 }
12484 nla_nest_end(msg, matches);
12485 }
12486
12487 scan_plans = nla_nest_start_noflag(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
12488 if (!scan_plans)
12489 return -ENOBUFS;
12490
12491 for (i = 0; i < req->n_scan_plans; i++) {
12492 scan_plan = nla_nest_start_noflag(msg, i + 1);
12493 if (!scan_plan)
12494 return -ENOBUFS;
12495
12496 if (nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
12497 req->scan_plans[i].interval) ||
12498 (req->scan_plans[i].iterations &&
12499 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
12500 req->scan_plans[i].iterations)))
12501 return -ENOBUFS;
12502 nla_nest_end(msg, scan_plan);
12503 }
12504 nla_nest_end(msg, scan_plans);
12505
12506 nla_nest_end(msg, nd);
12507
12508 return 0;
12509}
12510
12511static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
12512{
12513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12514 struct sk_buff *msg;
12515 void *hdr;
12516 u32 size = NLMSG_DEFAULT_SIZE;
12517
12518 if (!rdev->wiphy.wowlan)
12519 return -EOPNOTSUPP;
12520
12521 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
12522
12523 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
12524 rdev->wiphy.wowlan_config->tcp->payload_len +
12525 rdev->wiphy.wowlan_config->tcp->wake_len +
12526 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
12527 }
12528
12529 msg = nlmsg_new(size, GFP_KERNEL);
12530 if (!msg)
12531 return -ENOMEM;
12532
12533 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
12534 NL80211_CMD_GET_WOWLAN);
12535 if (!hdr)
12536 goto nla_put_failure;
12537
12538 if (rdev->wiphy.wowlan_config) {
12539 struct nlattr *nl_wowlan;
12540
12541 nl_wowlan = nla_nest_start_noflag(msg,
12542 NL80211_ATTR_WOWLAN_TRIGGERS);
12543 if (!nl_wowlan)
12544 goto nla_put_failure;
12545
12546 if ((rdev->wiphy.wowlan_config->any &&
12547 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
12548 (rdev->wiphy.wowlan_config->disconnect &&
12549 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
12550 (rdev->wiphy.wowlan_config->magic_pkt &&
12551 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
12552 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
12553 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
12554 (rdev->wiphy.wowlan_config->eap_identity_req &&
12555 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
12556 (rdev->wiphy.wowlan_config->four_way_handshake &&
12557 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
12558 (rdev->wiphy.wowlan_config->rfkill_release &&
12559 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
12560 goto nla_put_failure;
12561
12562 if (nl80211_send_wowlan_patterns(msg, rdev))
12563 goto nla_put_failure;
12564
12565 if (nl80211_send_wowlan_tcp(msg,
12566 rdev->wiphy.wowlan_config->tcp))
12567 goto nla_put_failure;
12568
12569 if (nl80211_send_wowlan_nd(
12570 msg,
12571 rdev->wiphy.wowlan_config->nd_config))
12572 goto nla_put_failure;
12573
12574 nla_nest_end(msg, nl_wowlan);
12575 }
12576
12577 genlmsg_end(msg, hdr);
12578 return genlmsg_reply(msg, info);
12579
12580nla_put_failure:
12581 nlmsg_free(msg);
12582 return -ENOBUFS;
12583}
12584
12585static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
12586 struct nlattr *attr,
12587 struct cfg80211_wowlan *trig)
12588{
12589 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
12590 struct cfg80211_wowlan_tcp *cfg;
12591 struct nl80211_wowlan_tcp_data_token *tok = NULL;
12592 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
12593 u32 size;
12594 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
12595 int err, port;
12596
12597 if (!rdev->wiphy.wowlan->tcp)
12598 return -EINVAL;
12599
12600 err = nla_parse_nested_deprecated(tb, MAX_NL80211_WOWLAN_TCP, attr,
12601 nl80211_wowlan_tcp_policy, NULL);
12602 if (err)
12603 return err;
12604
12605 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
12606 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
12607 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
12608 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
12609 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
12610 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
12611 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
12612 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
12613 return -EINVAL;
12614
12615 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
12616 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
12617 return -EINVAL;
12618
12619 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
12620 rdev->wiphy.wowlan->tcp->data_interval_max ||
12621 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
12622 return -EINVAL;
12623
12624 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
12625 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
12626 return -EINVAL;
12627
12628 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
12629 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
12630 return -EINVAL;
12631
12632 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
12633 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
12634
12635 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
12636 tokens_size = tokln - sizeof(*tok);
12637
12638 if (!tok->len || tokens_size % tok->len)
12639 return -EINVAL;
12640 if (!rdev->wiphy.wowlan->tcp->tok)
12641 return -EINVAL;
12642 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
12643 return -EINVAL;
12644 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
12645 return -EINVAL;
12646 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
12647 return -EINVAL;
12648 if (tok->offset + tok->len > data_size)
12649 return -EINVAL;
12650 }
12651
12652 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
12653 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
12654 if (!rdev->wiphy.wowlan->tcp->seq)
12655 return -EINVAL;
12656 if (seq->len == 0 || seq->len > 4)
12657 return -EINVAL;
12658 if (seq->len + seq->offset > data_size)
12659 return -EINVAL;
12660 }
12661
12662 size = sizeof(*cfg);
12663 size += data_size;
12664 size += wake_size + wake_mask_size;
12665 size += tokens_size;
12666
12667 cfg = kzalloc(size, GFP_KERNEL);
12668 if (!cfg)
12669 return -ENOMEM;
12670 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
12671 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
12672 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
12673 ETH_ALEN);
12674 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
12675 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
12676 else
12677 port = 0;
12678#ifdef CONFIG_INET
12679
12680 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
12681 IPPROTO_TCP, &cfg->sock, 1);
12682 if (err) {
12683 kfree(cfg);
12684 return err;
12685 }
12686 if (inet_csk_get_port(cfg->sock->sk, port)) {
12687 sock_release(cfg->sock);
12688 kfree(cfg);
12689 return -EADDRINUSE;
12690 }
12691 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
12692#else
12693 if (!port) {
12694 kfree(cfg);
12695 return -EINVAL;
12696 }
12697 cfg->src_port = port;
12698#endif
12699
12700 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
12701 cfg->payload_len = data_size;
12702 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
12703 memcpy((void *)cfg->payload,
12704 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
12705 data_size);
12706 if (seq)
12707 cfg->payload_seq = *seq;
12708 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
12709 cfg->wake_len = wake_size;
12710 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
12711 memcpy((void *)cfg->wake_data,
12712 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
12713 wake_size);
12714 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
12715 data_size + wake_size;
12716 memcpy((void *)cfg->wake_mask,
12717 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
12718 wake_mask_size);
12719 if (tok) {
12720 cfg->tokens_size = tokens_size;
12721 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
12722 }
12723
12724 trig->tcp = cfg;
12725
12726 return 0;
12727}
12728
12729static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
12730 const struct wiphy_wowlan_support *wowlan,
12731 struct nlattr *attr,
12732 struct cfg80211_wowlan *trig)
12733{
12734 struct nlattr **tb;
12735 int err;
12736
12737 tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL);
12738 if (!tb)
12739 return -ENOMEM;
12740
12741 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
12742 err = -EOPNOTSUPP;
12743 goto out;
12744 }
12745
12746 err = nla_parse_nested_deprecated(tb, NL80211_ATTR_MAX, attr,
12747 nl80211_policy, NULL);
12748 if (err)
12749 goto out;
12750
12751 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
12752 wowlan->max_nd_match_sets);
12753 err = PTR_ERR_OR_ZERO(trig->nd_config);
12754 if (err)
12755 trig->nd_config = NULL;
12756
12757out:
12758 kfree(tb);
12759 return err;
12760}
12761
12762static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
12763{
12764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12765 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
12766 struct cfg80211_wowlan new_triggers = {};
12767 struct cfg80211_wowlan *ntrig;
12768 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
12769 int err, i;
12770 bool prev_enabled = rdev->wiphy.wowlan_config;
12771 bool regular = false;
12772
12773 if (!wowlan)
12774 return -EOPNOTSUPP;
12775
12776 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
12777 cfg80211_rdev_free_wowlan(rdev);
12778 rdev->wiphy.wowlan_config = NULL;
12779 goto set_wakeup;
12780 }
12781
12782 err = nla_parse_nested_deprecated(tb, MAX_NL80211_WOWLAN_TRIG,
12783 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
12784 nl80211_wowlan_policy, info->extack);
12785 if (err)
12786 return err;
12787
12788 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
12789 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
12790 return -EINVAL;
12791 new_triggers.any = true;
12792 }
12793
12794 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
12795 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
12796 return -EINVAL;
12797 new_triggers.disconnect = true;
12798 regular = true;
12799 }
12800
12801 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
12802 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
12803 return -EINVAL;
12804 new_triggers.magic_pkt = true;
12805 regular = true;
12806 }
12807
12808 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
12809 return -EINVAL;
12810
12811 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
12812 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
12813 return -EINVAL;
12814 new_triggers.gtk_rekey_failure = true;
12815 regular = true;
12816 }
12817
12818 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
12819 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
12820 return -EINVAL;
12821 new_triggers.eap_identity_req = true;
12822 regular = true;
12823 }
12824
12825 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
12826 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
12827 return -EINVAL;
12828 new_triggers.four_way_handshake = true;
12829 regular = true;
12830 }
12831
12832 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
12833 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
12834 return -EINVAL;
12835 new_triggers.rfkill_release = true;
12836 regular = true;
12837 }
12838
12839 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
12840 struct nlattr *pat;
12841 int n_patterns = 0;
12842 int rem, pat_len, mask_len, pkt_offset;
12843 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
12844
12845 regular = true;
12846
12847 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
12848 rem)
12849 n_patterns++;
12850 if (n_patterns > wowlan->n_patterns)
12851 return -EINVAL;
12852
12853 new_triggers.patterns = kcalloc(n_patterns,
12854 sizeof(new_triggers.patterns[0]),
12855 GFP_KERNEL);
12856 if (!new_triggers.patterns)
12857 return -ENOMEM;
12858
12859 new_triggers.n_patterns = n_patterns;
12860 i = 0;
12861
12862 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
12863 rem) {
12864 u8 *mask_pat;
12865
12866 err = nla_parse_nested_deprecated(pat_tb,
12867 MAX_NL80211_PKTPAT,
12868 pat,
12869 nl80211_packet_pattern_policy,
12870 info->extack);
12871 if (err)
12872 goto error;
12873
12874 err = -EINVAL;
12875 if (!pat_tb[NL80211_PKTPAT_MASK] ||
12876 !pat_tb[NL80211_PKTPAT_PATTERN])
12877 goto error;
12878 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
12879 mask_len = DIV_ROUND_UP(pat_len, 8);
12880 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
12881 goto error;
12882 if (pat_len > wowlan->pattern_max_len ||
12883 pat_len < wowlan->pattern_min_len)
12884 goto error;
12885
12886 if (!pat_tb[NL80211_PKTPAT_OFFSET])
12887 pkt_offset = 0;
12888 else
12889 pkt_offset = nla_get_u32(
12890 pat_tb[NL80211_PKTPAT_OFFSET]);
12891 if (pkt_offset > wowlan->max_pkt_offset)
12892 goto error;
12893 new_triggers.patterns[i].pkt_offset = pkt_offset;
12894
12895 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
12896 if (!mask_pat) {
12897 err = -ENOMEM;
12898 goto error;
12899 }
12900 new_triggers.patterns[i].mask = mask_pat;
12901 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
12902 mask_len);
12903 mask_pat += mask_len;
12904 new_triggers.patterns[i].pattern = mask_pat;
12905 new_triggers.patterns[i].pattern_len = pat_len;
12906 memcpy(mask_pat,
12907 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
12908 pat_len);
12909 i++;
12910 }
12911 }
12912
12913 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
12914 regular = true;
12915 err = nl80211_parse_wowlan_tcp(
12916 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
12917 &new_triggers);
12918 if (err)
12919 goto error;
12920 }
12921
12922 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
12923 regular = true;
12924 err = nl80211_parse_wowlan_nd(
12925 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
12926 &new_triggers);
12927 if (err)
12928 goto error;
12929 }
12930
12931
12932
12933
12934
12935
12936
12937 if (new_triggers.any && regular) {
12938 err = -EINVAL;
12939 goto error;
12940 }
12941
12942 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
12943 if (!ntrig) {
12944 err = -ENOMEM;
12945 goto error;
12946 }
12947 cfg80211_rdev_free_wowlan(rdev);
12948 rdev->wiphy.wowlan_config = ntrig;
12949
12950 set_wakeup:
12951 if (rdev->ops->set_wakeup &&
12952 prev_enabled != !!rdev->wiphy.wowlan_config)
12953 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
12954
12955 return 0;
12956 error:
12957 for (i = 0; i < new_triggers.n_patterns; i++)
12958 kfree(new_triggers.patterns[i].mask);
12959 kfree(new_triggers.patterns);
12960 if (new_triggers.tcp && new_triggers.tcp->sock)
12961 sock_release(new_triggers.tcp->sock);
12962 kfree(new_triggers.tcp);
12963 kfree(new_triggers.nd_config);
12964 return err;
12965}
12966#endif
12967
12968static int nl80211_send_coalesce_rules(struct sk_buff *msg,
12969 struct cfg80211_registered_device *rdev)
12970{
12971 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
12972 int i, j, pat_len;
12973 struct cfg80211_coalesce_rules *rule;
12974
12975 if (!rdev->coalesce->n_rules)
12976 return 0;
12977
12978 nl_rules = nla_nest_start_noflag(msg, NL80211_ATTR_COALESCE_RULE);
12979 if (!nl_rules)
12980 return -ENOBUFS;
12981
12982 for (i = 0; i < rdev->coalesce->n_rules; i++) {
12983 nl_rule = nla_nest_start_noflag(msg, i + 1);
12984 if (!nl_rule)
12985 return -ENOBUFS;
12986
12987 rule = &rdev->coalesce->rules[i];
12988 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
12989 rule->delay))
12990 return -ENOBUFS;
12991
12992 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
12993 rule->condition))
12994 return -ENOBUFS;
12995
12996 nl_pats = nla_nest_start_noflag(msg,
12997 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
12998 if (!nl_pats)
12999 return -ENOBUFS;
13000
13001 for (j = 0; j < rule->n_patterns; j++) {
13002 nl_pat = nla_nest_start_noflag(msg, j + 1);
13003 if (!nl_pat)
13004 return -ENOBUFS;
13005 pat_len = rule->patterns[j].pattern_len;
13006 if (nla_put(msg, NL80211_PKTPAT_MASK,
13007 DIV_ROUND_UP(pat_len, 8),
13008 rule->patterns[j].mask) ||
13009 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
13010 rule->patterns[j].pattern) ||
13011 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
13012 rule->patterns[j].pkt_offset))
13013 return -ENOBUFS;
13014 nla_nest_end(msg, nl_pat);
13015 }
13016 nla_nest_end(msg, nl_pats);
13017 nla_nest_end(msg, nl_rule);
13018 }
13019 nla_nest_end(msg, nl_rules);
13020
13021 return 0;
13022}
13023
13024static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
13025{
13026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13027 struct sk_buff *msg;
13028 void *hdr;
13029
13030 if (!rdev->wiphy.coalesce)
13031 return -EOPNOTSUPP;
13032
13033 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13034 if (!msg)
13035 return -ENOMEM;
13036
13037 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
13038 NL80211_CMD_GET_COALESCE);
13039 if (!hdr)
13040 goto nla_put_failure;
13041
13042 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
13043 goto nla_put_failure;
13044
13045 genlmsg_end(msg, hdr);
13046 return genlmsg_reply(msg, info);
13047
13048nla_put_failure:
13049 nlmsg_free(msg);
13050 return -ENOBUFS;
13051}
13052
13053void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
13054{
13055 struct cfg80211_coalesce *coalesce = rdev->coalesce;
13056 int i, j;
13057 struct cfg80211_coalesce_rules *rule;
13058
13059 if (!coalesce)
13060 return;
13061
13062 for (i = 0; i < coalesce->n_rules; i++) {
13063 rule = &coalesce->rules[i];
13064 for (j = 0; j < rule->n_patterns; j++)
13065 kfree(rule->patterns[j].mask);
13066 kfree(rule->patterns);
13067 }
13068 kfree(coalesce->rules);
13069 kfree(coalesce);
13070 rdev->coalesce = NULL;
13071}
13072
13073static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
13074 struct nlattr *rule,
13075 struct cfg80211_coalesce_rules *new_rule)
13076{
13077 int err, i;
13078 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
13079 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
13080 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
13081 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
13082
13083 err = nla_parse_nested_deprecated(tb, NL80211_ATTR_COALESCE_RULE_MAX,
13084 rule, nl80211_coalesce_policy, NULL);
13085 if (err)
13086 return err;
13087
13088 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
13089 new_rule->delay =
13090 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
13091 if (new_rule->delay > coalesce->max_delay)
13092 return -EINVAL;
13093
13094 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
13095 new_rule->condition =
13096 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
13097
13098 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
13099 return -EINVAL;
13100
13101 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
13102 rem)
13103 n_patterns++;
13104 if (n_patterns > coalesce->n_patterns)
13105 return -EINVAL;
13106
13107 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
13108 GFP_KERNEL);
13109 if (!new_rule->patterns)
13110 return -ENOMEM;
13111
13112 new_rule->n_patterns = n_patterns;
13113 i = 0;
13114
13115 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
13116 rem) {
13117 u8 *mask_pat;
13118
13119 err = nla_parse_nested_deprecated(pat_tb, MAX_NL80211_PKTPAT,
13120 pat,
13121 nl80211_packet_pattern_policy,
13122 NULL);
13123 if (err)
13124 return err;
13125
13126 if (!pat_tb[NL80211_PKTPAT_MASK] ||
13127 !pat_tb[NL80211_PKTPAT_PATTERN])
13128 return -EINVAL;
13129 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
13130 mask_len = DIV_ROUND_UP(pat_len, 8);
13131 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
13132 return -EINVAL;
13133 if (pat_len > coalesce->pattern_max_len ||
13134 pat_len < coalesce->pattern_min_len)
13135 return -EINVAL;
13136
13137 if (!pat_tb[NL80211_PKTPAT_OFFSET])
13138 pkt_offset = 0;
13139 else
13140 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
13141 if (pkt_offset > coalesce->max_pkt_offset)
13142 return -EINVAL;
13143 new_rule->patterns[i].pkt_offset = pkt_offset;
13144
13145 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
13146 if (!mask_pat)
13147 return -ENOMEM;
13148
13149 new_rule->patterns[i].mask = mask_pat;
13150 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
13151 mask_len);
13152
13153 mask_pat += mask_len;
13154 new_rule->patterns[i].pattern = mask_pat;
13155 new_rule->patterns[i].pattern_len = pat_len;
13156 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
13157 pat_len);
13158 i++;
13159 }
13160
13161 return 0;
13162}
13163
13164static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
13165{
13166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13167 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
13168 struct cfg80211_coalesce new_coalesce = {};
13169 struct cfg80211_coalesce *n_coalesce;
13170 int err, rem_rule, n_rules = 0, i, j;
13171 struct nlattr *rule;
13172 struct cfg80211_coalesce_rules *tmp_rule;
13173
13174 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
13175 return -EOPNOTSUPP;
13176
13177 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
13178 cfg80211_rdev_free_coalesce(rdev);
13179 rdev_set_coalesce(rdev, NULL);
13180 return 0;
13181 }
13182
13183 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
13184 rem_rule)
13185 n_rules++;
13186 if (n_rules > coalesce->n_rules)
13187 return -EINVAL;
13188
13189 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
13190 GFP_KERNEL);
13191 if (!new_coalesce.rules)
13192 return -ENOMEM;
13193
13194 new_coalesce.n_rules = n_rules;
13195 i = 0;
13196
13197 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
13198 rem_rule) {
13199 err = nl80211_parse_coalesce_rule(rdev, rule,
13200 &new_coalesce.rules[i]);
13201 if (err)
13202 goto error;
13203
13204 i++;
13205 }
13206
13207 err = rdev_set_coalesce(rdev, &new_coalesce);
13208 if (err)
13209 goto error;
13210
13211 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
13212 if (!n_coalesce) {
13213 err = -ENOMEM;
13214 goto error;
13215 }
13216 cfg80211_rdev_free_coalesce(rdev);
13217 rdev->coalesce = n_coalesce;
13218
13219 return 0;
13220error:
13221 for (i = 0; i < new_coalesce.n_rules; i++) {
13222 tmp_rule = &new_coalesce.rules[i];
13223 for (j = 0; j < tmp_rule->n_patterns; j++)
13224 kfree(tmp_rule->patterns[j].mask);
13225 kfree(tmp_rule->patterns);
13226 }
13227 kfree(new_coalesce.rules);
13228
13229 return err;
13230}
13231
13232static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
13233{
13234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13235 struct net_device *dev = info->user_ptr[1];
13236 struct wireless_dev *wdev = dev->ieee80211_ptr;
13237 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
13238 struct cfg80211_gtk_rekey_data rekey_data = {};
13239 int err;
13240
13241 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
13242 return -EINVAL;
13243
13244 err = nla_parse_nested_deprecated(tb, MAX_NL80211_REKEY_DATA,
13245 info->attrs[NL80211_ATTR_REKEY_DATA],
13246 nl80211_rekey_policy, info->extack);
13247 if (err)
13248 return err;
13249
13250 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
13251 !tb[NL80211_REKEY_DATA_KCK])
13252 return -EINVAL;
13253 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN &&
13254 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK &&
13255 nla_len(tb[NL80211_REKEY_DATA_KEK]) == NL80211_KEK_EXT_LEN))
13256 return -ERANGE;
13257 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN &&
13258 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK &&
13259 nla_len(tb[NL80211_REKEY_DATA_KEK]) == NL80211_KCK_EXT_LEN))
13260 return -ERANGE;
13261
13262 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
13263 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
13264 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
13265 rekey_data.kek_len = nla_len(tb[NL80211_REKEY_DATA_KEK]);
13266 rekey_data.kck_len = nla_len(tb[NL80211_REKEY_DATA_KCK]);
13267 if (tb[NL80211_REKEY_DATA_AKM])
13268 rekey_data.akm = nla_get_u32(tb[NL80211_REKEY_DATA_AKM]);
13269
13270 wdev_lock(wdev);
13271 if (!wdev->current_bss) {
13272 err = -ENOTCONN;
13273 goto out;
13274 }
13275
13276 if (!rdev->ops->set_rekey_data) {
13277 err = -EOPNOTSUPP;
13278 goto out;
13279 }
13280
13281 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
13282 out:
13283 wdev_unlock(wdev);
13284 return err;
13285}
13286
13287static int nl80211_register_unexpected_frame(struct sk_buff *skb,
13288 struct genl_info *info)
13289{
13290 struct net_device *dev = info->user_ptr[1];
13291 struct wireless_dev *wdev = dev->ieee80211_ptr;
13292
13293 if (wdev->iftype != NL80211_IFTYPE_AP &&
13294 wdev->iftype != NL80211_IFTYPE_P2P_GO)
13295 return -EINVAL;
13296
13297 if (wdev->ap_unexpected_nlportid)
13298 return -EBUSY;
13299
13300 wdev->ap_unexpected_nlportid = info->snd_portid;
13301 return 0;
13302}
13303
13304static int nl80211_probe_client(struct sk_buff *skb,
13305 struct genl_info *info)
13306{
13307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13308 struct net_device *dev = info->user_ptr[1];
13309 struct wireless_dev *wdev = dev->ieee80211_ptr;
13310 struct sk_buff *msg;
13311 void *hdr;
13312 const u8 *addr;
13313 u64 cookie;
13314 int err;
13315
13316 if (wdev->iftype != NL80211_IFTYPE_AP &&
13317 wdev->iftype != NL80211_IFTYPE_P2P_GO)
13318 return -EOPNOTSUPP;
13319
13320 if (!info->attrs[NL80211_ATTR_MAC])
13321 return -EINVAL;
13322
13323 if (!rdev->ops->probe_client)
13324 return -EOPNOTSUPP;
13325
13326 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13327 if (!msg)
13328 return -ENOMEM;
13329
13330 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
13331 NL80211_CMD_PROBE_CLIENT);
13332 if (!hdr) {
13333 err = -ENOBUFS;
13334 goto free_msg;
13335 }
13336
13337 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
13338
13339 err = rdev_probe_client(rdev, dev, addr, &cookie);
13340 if (err)
13341 goto free_msg;
13342
13343 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13344 NL80211_ATTR_PAD))
13345 goto nla_put_failure;
13346
13347 genlmsg_end(msg, hdr);
13348
13349 return genlmsg_reply(msg, info);
13350
13351 nla_put_failure:
13352 err = -ENOBUFS;
13353 free_msg:
13354 nlmsg_free(msg);
13355 return err;
13356}
13357
13358static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
13359{
13360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13361 struct cfg80211_beacon_registration *reg, *nreg;
13362 int rv;
13363
13364 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
13365 return -EOPNOTSUPP;
13366
13367 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
13368 if (!nreg)
13369 return -ENOMEM;
13370
13371
13372 spin_lock_bh(&rdev->beacon_registrations_lock);
13373 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13374 if (reg->nlportid == info->snd_portid) {
13375 rv = -EALREADY;
13376 goto out_err;
13377 }
13378 }
13379
13380 nreg->nlportid = info->snd_portid;
13381 list_add(&nreg->list, &rdev->beacon_registrations);
13382
13383 spin_unlock_bh(&rdev->beacon_registrations_lock);
13384
13385 return 0;
13386out_err:
13387 spin_unlock_bh(&rdev->beacon_registrations_lock);
13388 kfree(nreg);
13389 return rv;
13390}
13391
13392static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
13393{
13394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13395 struct wireless_dev *wdev = info->user_ptr[1];
13396 int err;
13397
13398 if (!rdev->ops->start_p2p_device)
13399 return -EOPNOTSUPP;
13400
13401 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
13402 return -EOPNOTSUPP;
13403
13404 if (wdev_running(wdev))
13405 return 0;
13406
13407 if (rfkill_blocked(rdev->wiphy.rfkill))
13408 return -ERFKILL;
13409
13410 err = rdev_start_p2p_device(rdev, wdev);
13411 if (err)
13412 return err;
13413
13414 wdev->is_running = true;
13415 rdev->opencount++;
13416
13417 return 0;
13418}
13419
13420static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
13421{
13422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13423 struct wireless_dev *wdev = info->user_ptr[1];
13424
13425 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
13426 return -EOPNOTSUPP;
13427
13428 if (!rdev->ops->stop_p2p_device)
13429 return -EOPNOTSUPP;
13430
13431 cfg80211_stop_p2p_device(rdev, wdev);
13432
13433 return 0;
13434}
13435
13436static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
13437{
13438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13439 struct wireless_dev *wdev = info->user_ptr[1];
13440 struct cfg80211_nan_conf conf = {};
13441 int err;
13442
13443 if (wdev->iftype != NL80211_IFTYPE_NAN)
13444 return -EOPNOTSUPP;
13445
13446 if (wdev_running(wdev))
13447 return -EEXIST;
13448
13449 if (rfkill_blocked(rdev->wiphy.rfkill))
13450 return -ERFKILL;
13451
13452 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
13453 return -EINVAL;
13454
13455 conf.master_pref =
13456 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
13457
13458 if (info->attrs[NL80211_ATTR_BANDS]) {
13459 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
13460
13461 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
13462 return -EOPNOTSUPP;
13463
13464 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
13465 return -EINVAL;
13466
13467 conf.bands = bands;
13468 }
13469
13470 err = rdev_start_nan(rdev, wdev, &conf);
13471 if (err)
13472 return err;
13473
13474 wdev->is_running = true;
13475 rdev->opencount++;
13476
13477 return 0;
13478}
13479
13480static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
13481{
13482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13483 struct wireless_dev *wdev = info->user_ptr[1];
13484
13485 if (wdev->iftype != NL80211_IFTYPE_NAN)
13486 return -EOPNOTSUPP;
13487
13488 cfg80211_stop_nan(rdev, wdev);
13489
13490 return 0;
13491}
13492
13493static int validate_nan_filter(struct nlattr *filter_attr)
13494{
13495 struct nlattr *attr;
13496 int len = 0, n_entries = 0, rem;
13497
13498 nla_for_each_nested(attr, filter_attr, rem) {
13499 len += nla_len(attr);
13500 n_entries++;
13501 }
13502
13503 if (len >= U8_MAX)
13504 return -EINVAL;
13505
13506 return n_entries;
13507}
13508
13509static int handle_nan_filter(struct nlattr *attr_filter,
13510 struct cfg80211_nan_func *func,
13511 bool tx)
13512{
13513 struct nlattr *attr;
13514 int n_entries, rem, i;
13515 struct cfg80211_nan_func_filter *filter;
13516
13517 n_entries = validate_nan_filter(attr_filter);
13518 if (n_entries < 0)
13519 return n_entries;
13520
13521 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
13522
13523 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
13524 if (!filter)
13525 return -ENOMEM;
13526
13527 i = 0;
13528 nla_for_each_nested(attr, attr_filter, rem) {
13529 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
13530 if (!filter[i].filter)
13531 goto err;
13532
13533 filter[i].len = nla_len(attr);
13534 i++;
13535 }
13536 if (tx) {
13537 func->num_tx_filters = n_entries;
13538 func->tx_filters = filter;
13539 } else {
13540 func->num_rx_filters = n_entries;
13541 func->rx_filters = filter;
13542 }
13543
13544 return 0;
13545
13546err:
13547 i = 0;
13548 nla_for_each_nested(attr, attr_filter, rem) {
13549 kfree(filter[i].filter);
13550 i++;
13551 }
13552 kfree(filter);
13553 return -ENOMEM;
13554}
13555
13556static int nl80211_nan_add_func(struct sk_buff *skb,
13557 struct genl_info *info)
13558{
13559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13560 struct wireless_dev *wdev = info->user_ptr[1];
13561 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
13562 struct cfg80211_nan_func *func;
13563 struct sk_buff *msg = NULL;
13564 void *hdr = NULL;
13565 int err = 0;
13566
13567 if (wdev->iftype != NL80211_IFTYPE_NAN)
13568 return -EOPNOTSUPP;
13569
13570 if (!wdev_running(wdev))
13571 return -ENOTCONN;
13572
13573 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
13574 return -EINVAL;
13575
13576 err = nla_parse_nested_deprecated(tb, NL80211_NAN_FUNC_ATTR_MAX,
13577 info->attrs[NL80211_ATTR_NAN_FUNC],
13578 nl80211_nan_func_policy,
13579 info->extack);
13580 if (err)
13581 return err;
13582
13583 func = kzalloc(sizeof(*func), GFP_KERNEL);
13584 if (!func)
13585 return -ENOMEM;
13586
13587 func->cookie = cfg80211_assign_cookie(rdev);
13588
13589 if (!tb[NL80211_NAN_FUNC_TYPE]) {
13590 err = -EINVAL;
13591 goto out;
13592 }
13593
13594
13595 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
13596
13597 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
13598 err = -EINVAL;
13599 goto out;
13600 }
13601
13602 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
13603 sizeof(func->service_id));
13604
13605 func->close_range =
13606 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
13607
13608 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
13609 func->serv_spec_info_len =
13610 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
13611 func->serv_spec_info =
13612 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
13613 func->serv_spec_info_len,
13614 GFP_KERNEL);
13615 if (!func->serv_spec_info) {
13616 err = -ENOMEM;
13617 goto out;
13618 }
13619 }
13620
13621 if (tb[NL80211_NAN_FUNC_TTL])
13622 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
13623
13624 switch (func->type) {
13625 case NL80211_NAN_FUNC_PUBLISH:
13626 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
13627 err = -EINVAL;
13628 goto out;
13629 }
13630
13631 func->publish_type =
13632 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
13633 func->publish_bcast =
13634 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
13635
13636 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
13637 func->publish_bcast) {
13638 err = -EINVAL;
13639 goto out;
13640 }
13641 break;
13642 case NL80211_NAN_FUNC_SUBSCRIBE:
13643 func->subscribe_active =
13644 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
13645 break;
13646 case NL80211_NAN_FUNC_FOLLOW_UP:
13647 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
13648 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
13649 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
13650 err = -EINVAL;
13651 goto out;
13652 }
13653
13654 func->followup_id =
13655 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
13656 func->followup_reqid =
13657 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
13658 memcpy(func->followup_dest.addr,
13659 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
13660 sizeof(func->followup_dest.addr));
13661 if (func->ttl) {
13662 err = -EINVAL;
13663 goto out;
13664 }
13665 break;
13666 default:
13667 err = -EINVAL;
13668 goto out;
13669 }
13670
13671 if (tb[NL80211_NAN_FUNC_SRF]) {
13672 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
13673
13674 err = nla_parse_nested_deprecated(srf_tb,
13675 NL80211_NAN_SRF_ATTR_MAX,
13676 tb[NL80211_NAN_FUNC_SRF],
13677 nl80211_nan_srf_policy,
13678 info->extack);
13679 if (err)
13680 goto out;
13681
13682 func->srf_include =
13683 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
13684
13685 if (srf_tb[NL80211_NAN_SRF_BF]) {
13686 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
13687 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
13688 err = -EINVAL;
13689 goto out;
13690 }
13691
13692 func->srf_bf_len =
13693 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
13694 func->srf_bf =
13695 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
13696 func->srf_bf_len, GFP_KERNEL);
13697 if (!func->srf_bf) {
13698 err = -ENOMEM;
13699 goto out;
13700 }
13701
13702 func->srf_bf_idx =
13703 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
13704 } else {
13705 struct nlattr *attr, *mac_attr =
13706 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
13707 int n_entries, rem, i = 0;
13708
13709 if (!mac_attr) {
13710 err = -EINVAL;
13711 goto out;
13712 }
13713
13714 n_entries = validate_acl_mac_addrs(mac_attr);
13715 if (n_entries <= 0) {
13716 err = -EINVAL;
13717 goto out;
13718 }
13719
13720 func->srf_num_macs = n_entries;
13721 func->srf_macs =
13722 kcalloc(n_entries, sizeof(*func->srf_macs),
13723 GFP_KERNEL);
13724 if (!func->srf_macs) {
13725 err = -ENOMEM;
13726 goto out;
13727 }
13728
13729 nla_for_each_nested(attr, mac_attr, rem)
13730 memcpy(func->srf_macs[i++].addr, nla_data(attr),
13731 sizeof(*func->srf_macs));
13732 }
13733 }
13734
13735 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
13736 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
13737 func, true);
13738 if (err)
13739 goto out;
13740 }
13741
13742 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
13743 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
13744 func, false);
13745 if (err)
13746 goto out;
13747 }
13748
13749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13750 if (!msg) {
13751 err = -ENOMEM;
13752 goto out;
13753 }
13754
13755 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
13756 NL80211_CMD_ADD_NAN_FUNCTION);
13757
13758 if (WARN_ON(!hdr)) {
13759 err = -ENOMEM;
13760 goto out;
13761 }
13762
13763 err = rdev_add_nan_func(rdev, wdev, func);
13764out:
13765 if (err < 0) {
13766 cfg80211_free_nan_func(func);
13767 nlmsg_free(msg);
13768 return err;
13769 }
13770
13771
13772 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
13773 NL80211_ATTR_PAD))
13774 goto nla_put_failure;
13775
13776 func_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_FUNC);
13777 if (!func_attr)
13778 goto nla_put_failure;
13779
13780 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
13781 func->instance_id))
13782 goto nla_put_failure;
13783
13784 nla_nest_end(msg, func_attr);
13785
13786 genlmsg_end(msg, hdr);
13787 return genlmsg_reply(msg, info);
13788
13789nla_put_failure:
13790 nlmsg_free(msg);
13791 return -ENOBUFS;
13792}
13793
13794static int nl80211_nan_del_func(struct sk_buff *skb,
13795 struct genl_info *info)
13796{
13797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13798 struct wireless_dev *wdev = info->user_ptr[1];
13799 u64 cookie;
13800
13801 if (wdev->iftype != NL80211_IFTYPE_NAN)
13802 return -EOPNOTSUPP;
13803
13804 if (!wdev_running(wdev))
13805 return -ENOTCONN;
13806
13807 if (!info->attrs[NL80211_ATTR_COOKIE])
13808 return -EINVAL;
13809
13810 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
13811
13812 rdev_del_nan_func(rdev, wdev, cookie);
13813
13814 return 0;
13815}
13816
13817static int nl80211_nan_change_config(struct sk_buff *skb,
13818 struct genl_info *info)
13819{
13820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13821 struct wireless_dev *wdev = info->user_ptr[1];
13822 struct cfg80211_nan_conf conf = {};
13823 u32 changed = 0;
13824
13825 if (wdev->iftype != NL80211_IFTYPE_NAN)
13826 return -EOPNOTSUPP;
13827
13828 if (!wdev_running(wdev))
13829 return -ENOTCONN;
13830
13831 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
13832 conf.master_pref =
13833 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
13834 if (conf.master_pref <= 1 || conf.master_pref == 255)
13835 return -EINVAL;
13836
13837 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
13838 }
13839
13840 if (info->attrs[NL80211_ATTR_BANDS]) {
13841 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
13842
13843 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
13844 return -EOPNOTSUPP;
13845
13846 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
13847 return -EINVAL;
13848
13849 conf.bands = bands;
13850 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
13851 }
13852
13853 if (!changed)
13854 return -EINVAL;
13855
13856 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
13857}
13858
13859void cfg80211_nan_match(struct wireless_dev *wdev,
13860 struct cfg80211_nan_match_params *match, gfp_t gfp)
13861{
13862 struct wiphy *wiphy = wdev->wiphy;
13863 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13864 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
13865 struct sk_buff *msg;
13866 void *hdr;
13867
13868 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
13869 return;
13870
13871 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13872 if (!msg)
13873 return;
13874
13875 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
13876 if (!hdr) {
13877 nlmsg_free(msg);
13878 return;
13879 }
13880
13881 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13882 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13883 wdev->netdev->ifindex)) ||
13884 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13885 NL80211_ATTR_PAD))
13886 goto nla_put_failure;
13887
13888 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
13889 NL80211_ATTR_PAD) ||
13890 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
13891 goto nla_put_failure;
13892
13893 match_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_MATCH);
13894 if (!match_attr)
13895 goto nla_put_failure;
13896
13897 local_func_attr = nla_nest_start_noflag(msg,
13898 NL80211_NAN_MATCH_FUNC_LOCAL);
13899 if (!local_func_attr)
13900 goto nla_put_failure;
13901
13902 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
13903 goto nla_put_failure;
13904
13905 nla_nest_end(msg, local_func_attr);
13906
13907 peer_func_attr = nla_nest_start_noflag(msg,
13908 NL80211_NAN_MATCH_FUNC_PEER);
13909 if (!peer_func_attr)
13910 goto nla_put_failure;
13911
13912 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
13913 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
13914 goto nla_put_failure;
13915
13916 if (match->info && match->info_len &&
13917 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
13918 match->info))
13919 goto nla_put_failure;
13920
13921 nla_nest_end(msg, peer_func_attr);
13922 nla_nest_end(msg, match_attr);
13923 genlmsg_end(msg, hdr);
13924
13925 if (!wdev->owner_nlportid)
13926 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
13927 msg, 0, NL80211_MCGRP_NAN, gfp);
13928 else
13929 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
13930 wdev->owner_nlportid);
13931
13932 return;
13933
13934nla_put_failure:
13935 nlmsg_free(msg);
13936}
13937EXPORT_SYMBOL(cfg80211_nan_match);
13938
13939void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
13940 u8 inst_id,
13941 enum nl80211_nan_func_term_reason reason,
13942 u64 cookie, gfp_t gfp)
13943{
13944 struct wiphy *wiphy = wdev->wiphy;
13945 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13946 struct sk_buff *msg;
13947 struct nlattr *func_attr;
13948 void *hdr;
13949
13950 if (WARN_ON(!inst_id))
13951 return;
13952
13953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13954 if (!msg)
13955 return;
13956
13957 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
13958 if (!hdr) {
13959 nlmsg_free(msg);
13960 return;
13961 }
13962
13963 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13964 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13965 wdev->netdev->ifindex)) ||
13966 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13967 NL80211_ATTR_PAD))
13968 goto nla_put_failure;
13969
13970 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13971 NL80211_ATTR_PAD))
13972 goto nla_put_failure;
13973
13974 func_attr = nla_nest_start_noflag(msg, NL80211_ATTR_NAN_FUNC);
13975 if (!func_attr)
13976 goto nla_put_failure;
13977
13978 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
13979 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
13980 goto nla_put_failure;
13981
13982 nla_nest_end(msg, func_attr);
13983 genlmsg_end(msg, hdr);
13984
13985 if (!wdev->owner_nlportid)
13986 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
13987 msg, 0, NL80211_MCGRP_NAN, gfp);
13988 else
13989 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
13990 wdev->owner_nlportid);
13991
13992 return;
13993
13994nla_put_failure:
13995 nlmsg_free(msg);
13996}
13997EXPORT_SYMBOL(cfg80211_nan_func_terminated);
13998
13999static int nl80211_get_protocol_features(struct sk_buff *skb,
14000 struct genl_info *info)
14001{
14002 void *hdr;
14003 struct sk_buff *msg;
14004
14005 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14006 if (!msg)
14007 return -ENOMEM;
14008
14009 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
14010 NL80211_CMD_GET_PROTOCOL_FEATURES);
14011 if (!hdr)
14012 goto nla_put_failure;
14013
14014 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
14015 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
14016 goto nla_put_failure;
14017
14018 genlmsg_end(msg, hdr);
14019 return genlmsg_reply(msg, info);
14020
14021 nla_put_failure:
14022 kfree_skb(msg);
14023 return -ENOBUFS;
14024}
14025
14026static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
14027{
14028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14029 struct cfg80211_update_ft_ies_params ft_params;
14030 struct net_device *dev = info->user_ptr[1];
14031
14032 if (!rdev->ops->update_ft_ies)
14033 return -EOPNOTSUPP;
14034
14035 if (!info->attrs[NL80211_ATTR_MDID] ||
14036 !info->attrs[NL80211_ATTR_IE])
14037 return -EINVAL;
14038
14039 memset(&ft_params, 0, sizeof(ft_params));
14040 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
14041 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
14042 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
14043
14044 return rdev_update_ft_ies(rdev, dev, &ft_params);
14045}
14046
14047static int nl80211_crit_protocol_start(struct sk_buff *skb,
14048 struct genl_info *info)
14049{
14050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14051 struct wireless_dev *wdev = info->user_ptr[1];
14052 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
14053 u16 duration;
14054 int ret;
14055
14056 if (!rdev->ops->crit_proto_start)
14057 return -EOPNOTSUPP;
14058
14059 if (WARN_ON(!rdev->ops->crit_proto_stop))
14060 return -EINVAL;
14061
14062 if (rdev->crit_proto_nlportid)
14063 return -EBUSY;
14064
14065
14066 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
14067 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
14068
14069 if (proto >= NUM_NL80211_CRIT_PROTO)
14070 return -EINVAL;
14071
14072
14073 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
14074 return -EINVAL;
14075
14076 duration =
14077 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
14078
14079 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
14080 if (!ret)
14081 rdev->crit_proto_nlportid = info->snd_portid;
14082
14083 return ret;
14084}
14085
14086static int nl80211_crit_protocol_stop(struct sk_buff *skb,
14087 struct genl_info *info)
14088{
14089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14090 struct wireless_dev *wdev = info->user_ptr[1];
14091
14092 if (!rdev->ops->crit_proto_stop)
14093 return -EOPNOTSUPP;
14094
14095 if (rdev->crit_proto_nlportid) {
14096 rdev->crit_proto_nlportid = 0;
14097 rdev_crit_proto_stop(rdev, wdev);
14098 }
14099 return 0;
14100}
14101
14102static int nl80211_vendor_check_policy(const struct wiphy_vendor_command *vcmd,
14103 struct nlattr *attr,
14104 struct netlink_ext_ack *extack)
14105{
14106 if (vcmd->policy == VENDOR_CMD_RAW_DATA) {
14107 if (attr->nla_type & NLA_F_NESTED) {
14108 NL_SET_ERR_MSG_ATTR(extack, attr,
14109 "unexpected nested data");
14110 return -EINVAL;
14111 }
14112
14113 return 0;
14114 }
14115
14116 if (!(attr->nla_type & NLA_F_NESTED)) {
14117 NL_SET_ERR_MSG_ATTR(extack, attr, "expected nested data");
14118 return -EINVAL;
14119 }
14120
14121 return nla_validate_nested(attr, vcmd->maxattr, vcmd->policy, extack);
14122}
14123
14124static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
14125{
14126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14127 struct wireless_dev *wdev =
14128 __cfg80211_wdev_from_attrs(rdev, genl_info_net(info),
14129 info->attrs);
14130 int i, err;
14131 u32 vid, subcmd;
14132
14133 if (!rdev->wiphy.vendor_commands)
14134 return -EOPNOTSUPP;
14135
14136 if (IS_ERR(wdev)) {
14137 err = PTR_ERR(wdev);
14138 if (err != -EINVAL)
14139 return err;
14140 wdev = NULL;
14141 } else if (wdev->wiphy != &rdev->wiphy) {
14142 return -EINVAL;
14143 }
14144
14145 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
14146 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
14147 return -EINVAL;
14148
14149 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
14150 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
14151 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
14152 const struct wiphy_vendor_command *vcmd;
14153 void *data = NULL;
14154 int len = 0;
14155
14156 vcmd = &rdev->wiphy.vendor_commands[i];
14157
14158 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
14159 continue;
14160
14161 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
14162 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
14163 if (!wdev)
14164 return -EINVAL;
14165 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
14166 !wdev->netdev)
14167 return -EINVAL;
14168
14169 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
14170 if (!wdev_running(wdev))
14171 return -ENETDOWN;
14172 }
14173 } else {
14174 wdev = NULL;
14175 }
14176
14177 if (!vcmd->doit)
14178 return -EOPNOTSUPP;
14179
14180 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
14181 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
14182 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
14183
14184 err = nl80211_vendor_check_policy(vcmd,
14185 info->attrs[NL80211_ATTR_VENDOR_DATA],
14186 info->extack);
14187 if (err)
14188 return err;
14189 }
14190
14191 rdev->cur_cmd_info = info;
14192 err = vcmd->doit(&rdev->wiphy, wdev, data, len);
14193 rdev->cur_cmd_info = NULL;
14194 return err;
14195 }
14196
14197 return -EOPNOTSUPP;
14198}
14199
14200static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
14201 struct netlink_callback *cb,
14202 struct cfg80211_registered_device **rdev,
14203 struct wireless_dev **wdev)
14204{
14205 struct nlattr **attrbuf;
14206 u32 vid, subcmd;
14207 unsigned int i;
14208 int vcmd_idx = -1;
14209 int err;
14210 void *data = NULL;
14211 unsigned int data_len = 0;
14212
14213 if (cb->args[0]) {
14214
14215 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
14216 struct wireless_dev *tmp;
14217
14218 if (!wiphy)
14219 return -ENODEV;
14220 *rdev = wiphy_to_rdev(wiphy);
14221 *wdev = NULL;
14222
14223 if (cb->args[1]) {
14224 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
14225 if (tmp->identifier == cb->args[1] - 1) {
14226 *wdev = tmp;
14227 break;
14228 }
14229 }
14230 }
14231
14232
14233 return 0;
14234 }
14235
14236 attrbuf = kcalloc(NUM_NL80211_ATTR, sizeof(*attrbuf), GFP_KERNEL);
14237 if (!attrbuf)
14238 return -ENOMEM;
14239
14240 err = nlmsg_parse_deprecated(cb->nlh,
14241 GENL_HDRLEN + nl80211_fam.hdrsize,
14242 attrbuf, nl80211_fam.maxattr,
14243 nl80211_policy, NULL);
14244 if (err)
14245 goto out;
14246
14247 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
14248 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
14249 err = -EINVAL;
14250 goto out;
14251 }
14252
14253 *wdev = __cfg80211_wdev_from_attrs(NULL, sock_net(skb->sk), attrbuf);
14254 if (IS_ERR(*wdev))
14255 *wdev = NULL;
14256
14257 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
14258 if (IS_ERR(*rdev)) {
14259 err = PTR_ERR(*rdev);
14260 goto out;
14261 }
14262
14263 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
14264 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
14265
14266 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
14267 const struct wiphy_vendor_command *vcmd;
14268
14269 vcmd = &(*rdev)->wiphy.vendor_commands[i];
14270
14271 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
14272 continue;
14273
14274 if (!vcmd->dumpit) {
14275 err = -EOPNOTSUPP;
14276 goto out;
14277 }
14278
14279 vcmd_idx = i;
14280 break;
14281 }
14282
14283 if (vcmd_idx < 0) {
14284 err = -EOPNOTSUPP;
14285 goto out;
14286 }
14287
14288 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
14289 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
14290 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
14291
14292 err = nl80211_vendor_check_policy(
14293 &(*rdev)->wiphy.vendor_commands[vcmd_idx],
14294 attrbuf[NL80211_ATTR_VENDOR_DATA],
14295 cb->extack);
14296 if (err)
14297 goto out;
14298 }
14299
14300
14301 cb->args[0] = (*rdev)->wiphy_idx + 1;
14302
14303 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
14304 cb->args[2] = vcmd_idx;
14305 cb->args[3] = (unsigned long)data;
14306 cb->args[4] = data_len;
14307
14308
14309 err = 0;
14310out:
14311 kfree(attrbuf);
14312 return err;
14313}
14314
14315static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
14316 struct netlink_callback *cb)
14317{
14318 struct cfg80211_registered_device *rdev;
14319 struct wireless_dev *wdev;
14320 unsigned int vcmd_idx;
14321 const struct wiphy_vendor_command *vcmd;
14322 void *data;
14323 int data_len;
14324 int err;
14325 struct nlattr *vendor_data;
14326
14327 rtnl_lock();
14328 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
14329 if (err)
14330 goto out;
14331
14332 vcmd_idx = cb->args[2];
14333 data = (void *)cb->args[3];
14334 data_len = cb->args[4];
14335 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
14336
14337 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
14338 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
14339 if (!wdev) {
14340 err = -EINVAL;
14341 goto out;
14342 }
14343 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
14344 !wdev->netdev) {
14345 err = -EINVAL;
14346 goto out;
14347 }
14348
14349 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
14350 if (!wdev_running(wdev)) {
14351 err = -ENETDOWN;
14352 goto out;
14353 }
14354 }
14355 }
14356
14357 while (1) {
14358 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
14359 cb->nlh->nlmsg_seq, NLM_F_MULTI,
14360 NL80211_CMD_VENDOR);
14361 if (!hdr)
14362 break;
14363
14364 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14365 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
14366 wdev_id(wdev),
14367 NL80211_ATTR_PAD))) {
14368 genlmsg_cancel(skb, hdr);
14369 break;
14370 }
14371
14372 vendor_data = nla_nest_start_noflag(skb,
14373 NL80211_ATTR_VENDOR_DATA);
14374 if (!vendor_data) {
14375 genlmsg_cancel(skb, hdr);
14376 break;
14377 }
14378
14379 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
14380 (unsigned long *)&cb->args[5]);
14381 nla_nest_end(skb, vendor_data);
14382
14383 if (err == -ENOBUFS || err == -ENOENT) {
14384 genlmsg_cancel(skb, hdr);
14385 break;
14386 } else if (err <= 0) {
14387 genlmsg_cancel(skb, hdr);
14388 goto out;
14389 }
14390
14391 genlmsg_end(skb, hdr);
14392 }
14393
14394 err = skb->len;
14395 out:
14396 rtnl_unlock();
14397 return err;
14398}
14399
14400struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
14401 enum nl80211_commands cmd,
14402 enum nl80211_attrs attr,
14403 int approxlen)
14404{
14405 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14406
14407 if (WARN_ON(!rdev->cur_cmd_info))
14408 return NULL;
14409
14410 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
14411 rdev->cur_cmd_info->snd_portid,
14412 rdev->cur_cmd_info->snd_seq,
14413 cmd, attr, NULL, GFP_KERNEL);
14414}
14415EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
14416
14417int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
14418{
14419 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
14420 void *hdr = ((void **)skb->cb)[1];
14421 struct nlattr *data = ((void **)skb->cb)[2];
14422
14423
14424 memset(skb->cb, 0, sizeof(skb->cb));
14425
14426 if (WARN_ON(!rdev->cur_cmd_info)) {
14427 kfree_skb(skb);
14428 return -EINVAL;
14429 }
14430
14431 nla_nest_end(skb, data);
14432 genlmsg_end(skb, hdr);
14433 return genlmsg_reply(skb, rdev->cur_cmd_info);
14434}
14435EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
14436
14437unsigned int cfg80211_vendor_cmd_get_sender(struct wiphy *wiphy)
14438{
14439 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14440
14441 if (WARN_ON(!rdev->cur_cmd_info))
14442 return 0;
14443
14444 return rdev->cur_cmd_info->snd_portid;
14445}
14446EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_get_sender);
14447
14448static int nl80211_set_qos_map(struct sk_buff *skb,
14449 struct genl_info *info)
14450{
14451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14452 struct cfg80211_qos_map *qos_map = NULL;
14453 struct net_device *dev = info->user_ptr[1];
14454 u8 *pos, len, num_des, des_len, des;
14455 int ret;
14456
14457 if (!rdev->ops->set_qos_map)
14458 return -EOPNOTSUPP;
14459
14460 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
14461 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
14462 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
14463
14464 if (len % 2)
14465 return -EINVAL;
14466
14467 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
14468 if (!qos_map)
14469 return -ENOMEM;
14470
14471 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
14472 if (num_des) {
14473 des_len = num_des *
14474 sizeof(struct cfg80211_dscp_exception);
14475 memcpy(qos_map->dscp_exception, pos, des_len);
14476 qos_map->num_des = num_des;
14477 for (des = 0; des < num_des; des++) {
14478 if (qos_map->dscp_exception[des].up > 7) {
14479 kfree(qos_map);
14480 return -EINVAL;
14481 }
14482 }
14483 pos += des_len;
14484 }
14485 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
14486 }
14487
14488 wdev_lock(dev->ieee80211_ptr);
14489 ret = nl80211_key_allowed(dev->ieee80211_ptr);
14490 if (!ret)
14491 ret = rdev_set_qos_map(rdev, dev, qos_map);
14492 wdev_unlock(dev->ieee80211_ptr);
14493
14494 kfree(qos_map);
14495 return ret;
14496}
14497
14498static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
14499{
14500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14501 struct net_device *dev = info->user_ptr[1];
14502 struct wireless_dev *wdev = dev->ieee80211_ptr;
14503 const u8 *peer;
14504 u8 tsid, up;
14505 u16 admitted_time = 0;
14506 int err;
14507
14508 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
14509 return -EOPNOTSUPP;
14510
14511 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
14512 !info->attrs[NL80211_ATTR_USER_PRIO])
14513 return -EINVAL;
14514
14515 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
14516 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
14517
14518
14519 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
14520
14521
14522
14523
14524 return -EINVAL;
14525 }
14526
14527 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
14528
14529 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
14530 admitted_time =
14531 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
14532 if (!admitted_time)
14533 return -EINVAL;
14534 }
14535
14536 wdev_lock(wdev);
14537 switch (wdev->iftype) {
14538 case NL80211_IFTYPE_STATION:
14539 case NL80211_IFTYPE_P2P_CLIENT:
14540 if (wdev->current_bss)
14541 break;
14542 err = -ENOTCONN;
14543 goto out;
14544 default:
14545 err = -EOPNOTSUPP;
14546 goto out;
14547 }
14548
14549 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
14550
14551 out:
14552 wdev_unlock(wdev);
14553 return err;
14554}
14555
14556static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
14557{
14558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14559 struct net_device *dev = info->user_ptr[1];
14560 struct wireless_dev *wdev = dev->ieee80211_ptr;
14561 const u8 *peer;
14562 u8 tsid;
14563 int err;
14564
14565 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
14566 return -EINVAL;
14567
14568 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
14569 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
14570
14571 wdev_lock(wdev);
14572 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
14573 wdev_unlock(wdev);
14574
14575 return err;
14576}
14577
14578static int nl80211_tdls_channel_switch(struct sk_buff *skb,
14579 struct genl_info *info)
14580{
14581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14582 struct net_device *dev = info->user_ptr[1];
14583 struct wireless_dev *wdev = dev->ieee80211_ptr;
14584 struct cfg80211_chan_def chandef = {};
14585 const u8 *addr;
14586 u8 oper_class;
14587 int err;
14588
14589 if (!rdev->ops->tdls_channel_switch ||
14590 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
14591 return -EOPNOTSUPP;
14592
14593 switch (dev->ieee80211_ptr->iftype) {
14594 case NL80211_IFTYPE_STATION:
14595 case NL80211_IFTYPE_P2P_CLIENT:
14596 break;
14597 default:
14598 return -EOPNOTSUPP;
14599 }
14600
14601 if (!info->attrs[NL80211_ATTR_MAC] ||
14602 !info->attrs[NL80211_ATTR_OPER_CLASS])
14603 return -EINVAL;
14604
14605 err = nl80211_parse_chandef(rdev, info, &chandef);
14606 if (err)
14607 return err;
14608
14609
14610
14611
14612
14613
14614 if (chandef.chan->band == NL80211_BAND_2GHZ &&
14615 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
14616 chandef.width != NL80211_CHAN_WIDTH_20)
14617 return -EINVAL;
14618
14619
14620 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
14621 wdev->iftype))
14622 return -EINVAL;
14623
14624
14625 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
14626 return -EINVAL;
14627
14628 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
14629 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
14630
14631 wdev_lock(wdev);
14632 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
14633 wdev_unlock(wdev);
14634
14635 return err;
14636}
14637
14638static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
14639 struct genl_info *info)
14640{
14641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14642 struct net_device *dev = info->user_ptr[1];
14643 struct wireless_dev *wdev = dev->ieee80211_ptr;
14644 const u8 *addr;
14645
14646 if (!rdev->ops->tdls_channel_switch ||
14647 !rdev->ops->tdls_cancel_channel_switch ||
14648 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
14649 return -EOPNOTSUPP;
14650
14651 switch (dev->ieee80211_ptr->iftype) {
14652 case NL80211_IFTYPE_STATION:
14653 case NL80211_IFTYPE_P2P_CLIENT:
14654 break;
14655 default:
14656 return -EOPNOTSUPP;
14657 }
14658
14659 if (!info->attrs[NL80211_ATTR_MAC])
14660 return -EINVAL;
14661
14662 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
14663
14664 wdev_lock(wdev);
14665 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
14666 wdev_unlock(wdev);
14667
14668 return 0;
14669}
14670
14671static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
14672 struct genl_info *info)
14673{
14674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14675 struct net_device *dev = info->user_ptr[1];
14676 struct wireless_dev *wdev = dev->ieee80211_ptr;
14677 const struct nlattr *nla;
14678 bool enabled;
14679
14680 if (!rdev->ops->set_multicast_to_unicast)
14681 return -EOPNOTSUPP;
14682
14683 if (wdev->iftype != NL80211_IFTYPE_AP &&
14684 wdev->iftype != NL80211_IFTYPE_P2P_GO)
14685 return -EOPNOTSUPP;
14686
14687 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
14688 enabled = nla_get_flag(nla);
14689
14690 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
14691}
14692
14693static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
14694{
14695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14696 struct net_device *dev = info->user_ptr[1];
14697 struct wireless_dev *wdev = dev->ieee80211_ptr;
14698 struct cfg80211_pmk_conf pmk_conf = {};
14699 int ret;
14700
14701 if (wdev->iftype != NL80211_IFTYPE_STATION &&
14702 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
14703 return -EOPNOTSUPP;
14704
14705 if (!wiphy_ext_feature_isset(&rdev->wiphy,
14706 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
14707 return -EOPNOTSUPP;
14708
14709 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
14710 return -EINVAL;
14711
14712 wdev_lock(wdev);
14713 if (!wdev->current_bss) {
14714 ret = -ENOTCONN;
14715 goto out;
14716 }
14717
14718 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
14719 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
14720 ret = -EINVAL;
14721 goto out;
14722 }
14723
14724 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
14725 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
14726 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
14727 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
14728 ret = -EINVAL;
14729 goto out;
14730 }
14731
14732 if (info->attrs[NL80211_ATTR_PMKR0_NAME])
14733 pmk_conf.pmk_r0_name =
14734 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
14735
14736 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
14737out:
14738 wdev_unlock(wdev);
14739 return ret;
14740}
14741
14742static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
14743{
14744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14745 struct net_device *dev = info->user_ptr[1];
14746 struct wireless_dev *wdev = dev->ieee80211_ptr;
14747 const u8 *aa;
14748 int ret;
14749
14750 if (wdev->iftype != NL80211_IFTYPE_STATION &&
14751 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
14752 return -EOPNOTSUPP;
14753
14754 if (!wiphy_ext_feature_isset(&rdev->wiphy,
14755 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
14756 return -EOPNOTSUPP;
14757
14758 if (!info->attrs[NL80211_ATTR_MAC])
14759 return -EINVAL;
14760
14761 wdev_lock(wdev);
14762 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
14763 ret = rdev_del_pmk(rdev, dev, aa);
14764 wdev_unlock(wdev);
14765
14766 return ret;
14767}
14768
14769static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
14770{
14771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14772 struct net_device *dev = info->user_ptr[1];
14773 struct cfg80211_external_auth_params params;
14774
14775 if (!rdev->ops->external_auth)
14776 return -EOPNOTSUPP;
14777
14778 if (!info->attrs[NL80211_ATTR_SSID] &&
14779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
14780 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
14781 return -EINVAL;
14782
14783 if (!info->attrs[NL80211_ATTR_BSSID])
14784 return -EINVAL;
14785
14786 if (!info->attrs[NL80211_ATTR_STATUS_CODE])
14787 return -EINVAL;
14788
14789 memset(¶ms, 0, sizeof(params));
14790
14791 if (info->attrs[NL80211_ATTR_SSID]) {
14792 params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
14793 if (params.ssid.ssid_len == 0)
14794 return -EINVAL;
14795 memcpy(params.ssid.ssid,
14796 nla_data(info->attrs[NL80211_ATTR_SSID]),
14797 params.ssid.ssid_len);
14798 }
14799
14800 memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
14801 ETH_ALEN);
14802
14803 params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
14804
14805 if (info->attrs[NL80211_ATTR_PMKID])
14806 params.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
14807
14808 return rdev_external_auth(rdev, dev, ¶ms);
14809}
14810
14811static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
14812{
14813 bool dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
14814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14815 struct net_device *dev = info->user_ptr[1];
14816 struct wireless_dev *wdev = dev->ieee80211_ptr;
14817 const u8 *buf;
14818 size_t len;
14819 u8 *dest;
14820 u16 proto;
14821 bool noencrypt;
14822 u64 cookie = 0;
14823 int err;
14824
14825 if (!wiphy_ext_feature_isset(&rdev->wiphy,
14826 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
14827 return -EOPNOTSUPP;
14828
14829 if (!rdev->ops->tx_control_port)
14830 return -EOPNOTSUPP;
14831
14832 if (!info->attrs[NL80211_ATTR_FRAME] ||
14833 !info->attrs[NL80211_ATTR_MAC] ||
14834 !info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
14835 GENL_SET_ERR_MSG(info, "Frame, MAC or ethertype missing");
14836 return -EINVAL;
14837 }
14838
14839 wdev_lock(wdev);
14840
14841 switch (wdev->iftype) {
14842 case NL80211_IFTYPE_AP:
14843 case NL80211_IFTYPE_P2P_GO:
14844 case NL80211_IFTYPE_MESH_POINT:
14845 break;
14846 case NL80211_IFTYPE_ADHOC:
14847 case NL80211_IFTYPE_STATION:
14848 case NL80211_IFTYPE_P2P_CLIENT:
14849 if (wdev->current_bss)
14850 break;
14851 err = -ENOTCONN;
14852 goto out;
14853 default:
14854 err = -EOPNOTSUPP;
14855 goto out;
14856 }
14857
14858 wdev_unlock(wdev);
14859
14860 buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
14861 len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
14862 dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
14863 proto = nla_get_u16(info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
14864 noencrypt =
14865 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]);
14866
14867 err = rdev_tx_control_port(rdev, dev, buf, len,
14868 dest, cpu_to_be16(proto), noencrypt,
14869 dont_wait_for_ack ? NULL : &cookie);
14870 if (!err && !dont_wait_for_ack)
14871 nl_set_extack_cookie_u64(info->extack, cookie);
14872 return err;
14873 out:
14874 wdev_unlock(wdev);
14875 return err;
14876}
14877
14878static int nl80211_get_ftm_responder_stats(struct sk_buff *skb,
14879 struct genl_info *info)
14880{
14881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14882 struct net_device *dev = info->user_ptr[1];
14883 struct wireless_dev *wdev = dev->ieee80211_ptr;
14884 struct cfg80211_ftm_responder_stats ftm_stats = {};
14885 struct sk_buff *msg;
14886 void *hdr;
14887 struct nlattr *ftm_stats_attr;
14888 int err;
14889
14890 if (wdev->iftype != NL80211_IFTYPE_AP || !wdev->beacon_interval)
14891 return -EOPNOTSUPP;
14892
14893 err = rdev_get_ftm_responder_stats(rdev, dev, &ftm_stats);
14894 if (err)
14895 return err;
14896
14897 if (!ftm_stats.filled)
14898 return -ENODATA;
14899
14900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14901 if (!msg)
14902 return -ENOMEM;
14903
14904 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
14905 NL80211_CMD_GET_FTM_RESPONDER_STATS);
14906 if (!hdr)
14907 goto nla_put_failure;
14908
14909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
14910 goto nla_put_failure;
14911
14912 ftm_stats_attr = nla_nest_start_noflag(msg,
14913 NL80211_ATTR_FTM_RESPONDER_STATS);
14914 if (!ftm_stats_attr)
14915 goto nla_put_failure;
14916
14917#define SET_FTM(field, name, type) \
14918 do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \
14919 nla_put_ ## type(msg, NL80211_FTM_STATS_ ## name, \
14920 ftm_stats.field)) \
14921 goto nla_put_failure; } while (0)
14922#define SET_FTM_U64(field, name) \
14923 do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \
14924 nla_put_u64_64bit(msg, NL80211_FTM_STATS_ ## name, \
14925 ftm_stats.field, NL80211_FTM_STATS_PAD)) \
14926 goto nla_put_failure; } while (0)
14927
14928 SET_FTM(success_num, SUCCESS_NUM, u32);
14929 SET_FTM(partial_num, PARTIAL_NUM, u32);
14930 SET_FTM(failed_num, FAILED_NUM, u32);
14931 SET_FTM(asap_num, ASAP_NUM, u32);
14932 SET_FTM(non_asap_num, NON_ASAP_NUM, u32);
14933 SET_FTM_U64(total_duration_ms, TOTAL_DURATION_MSEC);
14934 SET_FTM(unknown_triggers_num, UNKNOWN_TRIGGERS_NUM, u32);
14935 SET_FTM(reschedule_requests_num, RESCHEDULE_REQUESTS_NUM, u32);
14936 SET_FTM(out_of_window_triggers_num, OUT_OF_WINDOW_TRIGGERS_NUM, u32);
14937#undef SET_FTM
14938
14939 nla_nest_end(msg, ftm_stats_attr);
14940
14941 genlmsg_end(msg, hdr);
14942 return genlmsg_reply(msg, info);
14943
14944nla_put_failure:
14945 nlmsg_free(msg);
14946 return -ENOBUFS;
14947}
14948
14949static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info)
14950{
14951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14952 struct cfg80211_update_owe_info owe_info;
14953 struct net_device *dev = info->user_ptr[1];
14954
14955 if (!rdev->ops->update_owe_info)
14956 return -EOPNOTSUPP;
14957
14958 if (!info->attrs[NL80211_ATTR_STATUS_CODE] ||
14959 !info->attrs[NL80211_ATTR_MAC])
14960 return -EINVAL;
14961
14962 memset(&owe_info, 0, sizeof(owe_info));
14963 owe_info.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
14964 nla_memcpy(owe_info.peer, info->attrs[NL80211_ATTR_MAC], ETH_ALEN);
14965
14966 if (info->attrs[NL80211_ATTR_IE]) {
14967 owe_info.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
14968 owe_info.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
14969 }
14970
14971 return rdev_update_owe_info(rdev, dev, &owe_info);
14972}
14973
14974static int nl80211_probe_mesh_link(struct sk_buff *skb, struct genl_info *info)
14975{
14976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
14977 struct net_device *dev = info->user_ptr[1];
14978 struct wireless_dev *wdev = dev->ieee80211_ptr;
14979 struct station_info sinfo = {};
14980 const u8 *buf;
14981 size_t len;
14982 u8 *dest;
14983 int err;
14984
14985 if (!rdev->ops->probe_mesh_link || !rdev->ops->get_station)
14986 return -EOPNOTSUPP;
14987
14988 if (!info->attrs[NL80211_ATTR_MAC] ||
14989 !info->attrs[NL80211_ATTR_FRAME]) {
14990 GENL_SET_ERR_MSG(info, "Frame or MAC missing");
14991 return -EINVAL;
14992 }
14993
14994 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
14995 return -EOPNOTSUPP;
14996
14997 dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
14998 buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
14999 len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
15000
15001 if (len < sizeof(struct ethhdr))
15002 return -EINVAL;
15003
15004 if (!ether_addr_equal(buf, dest) || is_multicast_ether_addr(buf) ||
15005 !ether_addr_equal(buf + ETH_ALEN, dev->dev_addr))
15006 return -EINVAL;
15007
15008 err = rdev_get_station(rdev, dev, dest, &sinfo);
15009 if (err)
15010 return err;
15011
15012 cfg80211_sinfo_release_content(&sinfo);
15013
15014 return rdev_probe_mesh_link(rdev, dev, dest, buf, len);
15015}
15016
15017static int parse_tid_conf(struct cfg80211_registered_device *rdev,
15018 struct nlattr *attrs[], struct net_device *dev,
15019 struct cfg80211_tid_cfg *tid_conf,
15020 struct genl_info *info, const u8 *peer)
15021{
15022 struct netlink_ext_ack *extack = info->extack;
15023 u64 mask;
15024 int err;
15025
15026 if (!attrs[NL80211_TID_CONFIG_ATTR_TIDS])
15027 return -EINVAL;
15028
15029 tid_conf->config_override =
15030 nla_get_flag(attrs[NL80211_TID_CONFIG_ATTR_OVERRIDE]);
15031 tid_conf->tids = nla_get_u16(attrs[NL80211_TID_CONFIG_ATTR_TIDS]);
15032
15033 if (tid_conf->config_override) {
15034 if (rdev->ops->reset_tid_config) {
15035 err = rdev_reset_tid_config(rdev, dev, peer,
15036 tid_conf->tids);
15037 if (err)
15038 return err;
15039 } else {
15040 return -EINVAL;
15041 }
15042 }
15043
15044 if (attrs[NL80211_TID_CONFIG_ATTR_NOACK]) {
15045 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_NOACK);
15046 tid_conf->noack =
15047 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_NOACK]);
15048 }
15049
15050 if (attrs[NL80211_TID_CONFIG_ATTR_RETRY_SHORT]) {
15051 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RETRY_SHORT);
15052 tid_conf->retry_short =
15053 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RETRY_SHORT]);
15054
15055 if (tid_conf->retry_short > rdev->wiphy.max_data_retry_count)
15056 return -EINVAL;
15057 }
15058
15059 if (attrs[NL80211_TID_CONFIG_ATTR_RETRY_LONG]) {
15060 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RETRY_LONG);
15061 tid_conf->retry_long =
15062 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RETRY_LONG]);
15063
15064 if (tid_conf->retry_long > rdev->wiphy.max_data_retry_count)
15065 return -EINVAL;
15066 }
15067
15068 if (attrs[NL80211_TID_CONFIG_ATTR_AMPDU_CTRL]) {
15069 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_AMPDU_CTRL);
15070 tid_conf->ampdu =
15071 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_AMPDU_CTRL]);
15072 }
15073
15074 if (attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]) {
15075 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL);
15076 tid_conf->rtscts =
15077 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL]);
15078 }
15079
15080 if (attrs[NL80211_TID_CONFIG_ATTR_AMSDU_CTRL]) {
15081 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_AMSDU_CTRL);
15082 tid_conf->amsdu =
15083 nla_get_u8(attrs[NL80211_TID_CONFIG_ATTR_AMSDU_CTRL]);
15084 }
15085
15086 if (attrs[NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE]) {
15087 u32 idx = NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE, attr;
15088
15089 tid_conf->txrate_type = nla_get_u8(attrs[idx]);
15090
15091 if (tid_conf->txrate_type != NL80211_TX_RATE_AUTOMATIC) {
15092 attr = NL80211_TID_CONFIG_ATTR_TX_RATE;
15093 err = nl80211_parse_tx_bitrate_mask(info, attrs, attr,
15094 &tid_conf->txrate_mask, dev,
15095 true);
15096 if (err)
15097 return err;
15098
15099 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE);
15100 }
15101 tid_conf->mask |= BIT(NL80211_TID_CONFIG_ATTR_TX_RATE_TYPE);
15102 }
15103
15104 if (peer)
15105 mask = rdev->wiphy.tid_config_support.peer;
15106 else
15107 mask = rdev->wiphy.tid_config_support.vif;
15108
15109 if (tid_conf->mask & ~mask) {
15110 NL_SET_ERR_MSG(extack, "unsupported TID configuration");
15111 return -ENOTSUPP;
15112 }
15113
15114 return 0;
15115}
15116
15117static int nl80211_set_tid_config(struct sk_buff *skb,
15118 struct genl_info *info)
15119{
15120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
15121 struct nlattr *attrs[NL80211_TID_CONFIG_ATTR_MAX + 1];
15122 struct net_device *dev = info->user_ptr[1];
15123 struct cfg80211_tid_config *tid_config;
15124 struct nlattr *tid;
15125 int conf_idx = 0, rem_conf;
15126 int ret = -EINVAL;
15127 u32 num_conf = 0;
15128
15129 if (!info->attrs[NL80211_ATTR_TID_CONFIG])
15130 return -EINVAL;
15131
15132 if (!rdev->ops->set_tid_config)
15133 return -EOPNOTSUPP;
15134
15135 nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
15136 rem_conf)
15137 num_conf++;
15138
15139 tid_config = kzalloc(struct_size(tid_config, tid_conf, num_conf),
15140 GFP_KERNEL);
15141 if (!tid_config)
15142 return -ENOMEM;
15143
15144 tid_config->n_tid_conf = num_conf;
15145
15146 if (info->attrs[NL80211_ATTR_MAC])
15147 tid_config->peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
15148
15149 nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
15150 rem_conf) {
15151 ret = nla_parse_nested(attrs, NL80211_TID_CONFIG_ATTR_MAX,
15152 tid, NULL, NULL);
15153
15154 if (ret)
15155 goto bad_tid_conf;
15156
15157 ret = parse_tid_conf(rdev, attrs, dev,
15158 &tid_config->tid_conf[conf_idx],
15159 info, tid_config->peer);
15160 if (ret)
15161 goto bad_tid_conf;
15162
15163 conf_idx++;
15164 }
15165
15166 ret = rdev_set_tid_config(rdev, dev, tid_config);
15167
15168bad_tid_conf:
15169 kfree(tid_config);
15170 return ret;
15171}
15172
15173static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
15174{
15175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
15176 struct cfg80211_color_change_settings params = {};
15177 struct net_device *dev = info->user_ptr[1];
15178 struct wireless_dev *wdev = dev->ieee80211_ptr;
15179 struct nlattr **tb;
15180 u16 offset;
15181 int err;
15182
15183 if (!rdev->ops->color_change)
15184 return -EOPNOTSUPP;
15185
15186 if (!wiphy_ext_feature_isset(&rdev->wiphy,
15187 NL80211_EXT_FEATURE_BSS_COLOR))
15188 return -EOPNOTSUPP;
15189
15190 if (wdev->iftype != NL80211_IFTYPE_AP)
15191 return -EOPNOTSUPP;
15192
15193 if (!info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT] ||
15194 !info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR] ||
15195 !info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS])
15196 return -EINVAL;
15197
15198 params.count = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT]);
15199 params.color = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR]);
15200
15201 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_next);
15202 if (err)
15203 return err;
15204
15205 tb = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*tb), GFP_KERNEL);
15206 if (!tb)
15207 return -ENOMEM;
15208
15209 err = nla_parse_nested(tb, NL80211_ATTR_MAX,
15210 info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS],
15211 nl80211_policy, info->extack);
15212 if (err)
15213 goto out;
15214
15215 err = nl80211_parse_beacon(rdev, tb, ¶ms.beacon_color_change);
15216 if (err)
15217 goto out;
15218
15219 if (!tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) {
15220 err = -EINVAL;
15221 goto out;
15222 }
15223
15224 if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) != sizeof(u16)) {
15225 err = -EINVAL;
15226 goto out;
15227 }
15228
15229 offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]);
15230 if (offset >= params.beacon_color_change.tail_len) {
15231 err = -EINVAL;
15232 goto out;
15233 }
15234
15235 if (params.beacon_color_change.tail[offset] != params.count) {
15236 err = -EINVAL;
15237 goto out;
15238 }
15239
15240 params.counter_offset_beacon = offset;
15241
15242 if (tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) {
15243 if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) !=
15244 sizeof(u16)) {
15245 err = -EINVAL;
15246 goto out;
15247 }
15248
15249 offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]);
15250 if (offset >= params.beacon_color_change.probe_resp_len) {
15251 err = -EINVAL;
15252 goto out;
15253 }
15254
15255 if (params.beacon_color_change.probe_resp[offset] !=
15256 params.count) {
15257 err = -EINVAL;
15258 goto out;
15259 }
15260
15261 params.counter_offset_presp = offset;
15262 }
15263
15264 wdev_lock(wdev);
15265 err = rdev_color_change(rdev, dev, ¶ms);
15266 wdev_unlock(wdev);
15267
15268out:
15269 kfree(params.beacon_next.mbssid_ies);
15270 kfree(params.beacon_color_change.mbssid_ies);
15271 kfree(tb);
15272 return err;
15273}
15274
15275static int nl80211_set_fils_aad(struct sk_buff *skb,
15276 struct genl_info *info)
15277{
15278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
15279 struct net_device *dev = info->user_ptr[1];
15280 struct cfg80211_fils_aad fils_aad = {};
15281 u8 *nonces;
15282
15283 if (!info->attrs[NL80211_ATTR_MAC] ||
15284 !info->attrs[NL80211_ATTR_FILS_KEK] ||
15285 !info->attrs[NL80211_ATTR_FILS_NONCES])
15286 return -EINVAL;
15287
15288 fils_aad.macaddr = nla_data(info->attrs[NL80211_ATTR_MAC]);
15289 fils_aad.kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
15290 fils_aad.kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
15291 nonces = nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
15292 fils_aad.snonce = nonces;
15293 fils_aad.anonce = nonces + FILS_NONCE_LEN;
15294
15295 return rdev_set_fils_aad(rdev, dev, &fils_aad);
15296}
15297
15298#define NL80211_FLAG_NEED_WIPHY 0x01
15299#define NL80211_FLAG_NEED_NETDEV 0x02
15300#define NL80211_FLAG_NEED_RTNL 0x04
15301#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
15302#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
15303 NL80211_FLAG_CHECK_NETDEV_UP)
15304#define NL80211_FLAG_NEED_WDEV 0x10
15305
15306#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
15307 NL80211_FLAG_CHECK_NETDEV_UP)
15308#define NL80211_FLAG_CLEAR_SKB 0x20
15309#define NL80211_FLAG_NO_WIPHY_MTX 0x40
15310
15311#define INTERNAL_FLAG_SELECTORS(__sel) \
15312 SELECTOR(__sel, NONE, 0) \
15313 SELECTOR(__sel, WIPHY, \
15314 NL80211_FLAG_NEED_WIPHY) \
15315 SELECTOR(__sel, WDEV, \
15316 NL80211_FLAG_NEED_WDEV) \
15317 SELECTOR(__sel, NETDEV, \
15318 NL80211_FLAG_NEED_NETDEV) \
15319 SELECTOR(__sel, WIPHY_RTNL, \
15320 NL80211_FLAG_NEED_WIPHY | \
15321 NL80211_FLAG_NEED_RTNL) \
15322 SELECTOR(__sel, WIPHY_RTNL_NOMTX, \
15323 NL80211_FLAG_NEED_WIPHY | \
15324 NL80211_FLAG_NEED_RTNL | \
15325 NL80211_FLAG_NO_WIPHY_MTX) \
15326 SELECTOR(__sel, WDEV_RTNL, \
15327 NL80211_FLAG_NEED_WDEV | \
15328 NL80211_FLAG_NEED_RTNL) \
15329 SELECTOR(__sel, NETDEV_RTNL, \
15330 NL80211_FLAG_NEED_NETDEV | \
15331 NL80211_FLAG_NEED_RTNL) \
15332 SELECTOR(__sel, NETDEV_UP, \
15333 NL80211_FLAG_NEED_NETDEV_UP) \
15334 SELECTOR(__sel, NETDEV_UP_NOTMX, \
15335 NL80211_FLAG_NEED_NETDEV_UP | \
15336 NL80211_FLAG_NO_WIPHY_MTX) \
15337 SELECTOR(__sel, NETDEV_UP_CLEAR, \
15338 NL80211_FLAG_NEED_NETDEV_UP | \
15339 NL80211_FLAG_CLEAR_SKB) \
15340 SELECTOR(__sel, WDEV_UP, \
15341 NL80211_FLAG_NEED_WDEV_UP) \
15342 SELECTOR(__sel, WDEV_UP_RTNL, \
15343 NL80211_FLAG_NEED_WDEV_UP | \
15344 NL80211_FLAG_NEED_RTNL) \
15345 SELECTOR(__sel, WIPHY_CLEAR, \
15346 NL80211_FLAG_NEED_WIPHY | \
15347 NL80211_FLAG_CLEAR_SKB)
15348
15349enum nl80211_internal_flags_selector {
15350#define SELECTOR(_, name, value) NL80211_IFL_SEL_##name,
15351 INTERNAL_FLAG_SELECTORS(_)
15352#undef SELECTOR
15353};
15354
15355static u32 nl80211_internal_flags[] = {
15356#define SELECTOR(_, name, value) [NL80211_IFL_SEL_##name] = value,
15357 INTERNAL_FLAG_SELECTORS(_)
15358#undef SELECTOR
15359};
15360
15361static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
15362 struct genl_info *info)
15363{
15364 struct cfg80211_registered_device *rdev = NULL;
15365 struct wireless_dev *wdev;
15366 struct net_device *dev;
15367 u32 internal_flags;
15368
15369 if (WARN_ON(ops->internal_flags >= ARRAY_SIZE(nl80211_internal_flags)))
15370 return -EINVAL;
15371
15372 internal_flags = nl80211_internal_flags[ops->internal_flags];
15373
15374 rtnl_lock();
15375 if (internal_flags & NL80211_FLAG_NEED_WIPHY) {
15376 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
15377 if (IS_ERR(rdev)) {
15378 rtnl_unlock();
15379 return PTR_ERR(rdev);
15380 }
15381 info->user_ptr[0] = rdev;
15382 } else if (internal_flags & NL80211_FLAG_NEED_NETDEV ||
15383 internal_flags & NL80211_FLAG_NEED_WDEV) {
15384 wdev = __cfg80211_wdev_from_attrs(NULL, genl_info_net(info),
15385 info->attrs);
15386 if (IS_ERR(wdev)) {
15387 rtnl_unlock();
15388 return PTR_ERR(wdev);
15389 }
15390
15391 dev = wdev->netdev;
15392 rdev = wiphy_to_rdev(wdev->wiphy);
15393
15394 if (internal_flags & NL80211_FLAG_NEED_NETDEV) {
15395 if (!dev) {
15396 rtnl_unlock();
15397 return -EINVAL;
15398 }
15399
15400 info->user_ptr[1] = dev;
15401 } else {
15402 info->user_ptr[1] = wdev;
15403 }
15404
15405 if (internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
15406 !wdev_running(wdev)) {
15407 rtnl_unlock();
15408 return -ENETDOWN;
15409 }
15410
15411 dev_hold(dev);
15412 info->user_ptr[0] = rdev;
15413 }
15414
15415 if (rdev && !(internal_flags & NL80211_FLAG_NO_WIPHY_MTX)) {
15416 wiphy_lock(&rdev->wiphy);
15417
15418 __release(&rdev->wiphy.mtx);
15419 }
15420 if (!(internal_flags & NL80211_FLAG_NEED_RTNL))
15421 rtnl_unlock();
15422
15423 return 0;
15424}
15425
15426static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
15427 struct genl_info *info)
15428{
15429 u32 internal_flags = nl80211_internal_flags[ops->internal_flags];
15430
15431 if (info->user_ptr[1]) {
15432 if (internal_flags & NL80211_FLAG_NEED_WDEV) {
15433 struct wireless_dev *wdev = info->user_ptr[1];
15434
15435 dev_put(wdev->netdev);
15436 } else {
15437 dev_put(info->user_ptr[1]);
15438 }
15439 }
15440
15441 if (info->user_ptr[0] &&
15442 !(internal_flags & NL80211_FLAG_NO_WIPHY_MTX)) {
15443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
15444
15445
15446 __acquire(&rdev->wiphy.mtx);
15447 wiphy_unlock(&rdev->wiphy);
15448 }
15449
15450 if (internal_flags & NL80211_FLAG_NEED_RTNL)
15451 rtnl_unlock();
15452
15453
15454
15455
15456
15457
15458 if (internal_flags & NL80211_FLAG_CLEAR_SKB) {
15459 struct nlmsghdr *nlh = nlmsg_hdr(skb);
15460
15461 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
15462 }
15463}
15464
15465static int nl80211_set_sar_sub_specs(struct cfg80211_registered_device *rdev,
15466 struct cfg80211_sar_specs *sar_specs,
15467 struct nlattr *spec[], int index)
15468{
15469 u32 range_index, i;
15470
15471 if (!sar_specs || !spec)
15472 return -EINVAL;
15473
15474 if (!spec[NL80211_SAR_ATTR_SPECS_POWER] ||
15475 !spec[NL80211_SAR_ATTR_SPECS_RANGE_INDEX])
15476 return -EINVAL;
15477
15478 range_index = nla_get_u32(spec[NL80211_SAR_ATTR_SPECS_RANGE_INDEX]);
15479
15480
15481 if (range_index >= rdev->wiphy.sar_capa->num_freq_ranges)
15482 return -EINVAL;
15483
15484
15485 for (i = 0; i < index; i++) {
15486 if (sar_specs->sub_specs[i].freq_range_index == range_index)
15487 return -EINVAL;
15488 }
15489
15490 sar_specs->sub_specs[index].power =
15491 nla_get_s32(spec[NL80211_SAR_ATTR_SPECS_POWER]);
15492
15493 sar_specs->sub_specs[index].freq_range_index = range_index;
15494
15495 return 0;
15496}
15497
15498static int nl80211_set_sar_specs(struct sk_buff *skb, struct genl_info *info)
15499{
15500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
15501 struct nlattr *spec[NL80211_SAR_ATTR_SPECS_MAX + 1];
15502 struct nlattr *tb[NL80211_SAR_ATTR_MAX + 1];
15503 struct cfg80211_sar_specs *sar_spec;
15504 enum nl80211_sar_type type;
15505 struct nlattr *spec_list;
15506 u32 specs;
15507 int rem, err;
15508
15509 if (!rdev->wiphy.sar_capa || !rdev->ops->set_sar_specs)
15510 return -EOPNOTSUPP;
15511
15512 if (!info->attrs[NL80211_ATTR_SAR_SPEC])
15513 return -EINVAL;
15514
15515 nla_parse_nested(tb, NL80211_SAR_ATTR_MAX,
15516 info->attrs[NL80211_ATTR_SAR_SPEC],
15517 NULL, NULL);
15518
15519 if (!tb[NL80211_SAR_ATTR_TYPE] || !tb[NL80211_SAR_ATTR_SPECS])
15520 return -EINVAL;
15521
15522 type = nla_get_u32(tb[NL80211_SAR_ATTR_TYPE]);
15523 if (type != rdev->wiphy.sar_capa->type)
15524 return -EINVAL;
15525
15526 specs = 0;
15527 nla_for_each_nested(spec_list, tb[NL80211_SAR_ATTR_SPECS], rem)
15528 specs++;
15529
15530 if (specs > rdev->wiphy.sar_capa->num_freq_ranges)
15531 return -EINVAL;
15532
15533 sar_spec = kzalloc(struct_size(sar_spec, sub_specs, specs), GFP_KERNEL);
15534 if (!sar_spec)
15535 return -ENOMEM;
15536
15537 sar_spec->type = type;
15538 specs = 0;
15539 nla_for_each_nested(spec_list, tb[NL80211_SAR_ATTR_SPECS], rem) {
15540 nla_parse_nested(spec, NL80211_SAR_ATTR_SPECS_MAX,
15541 spec_list, NULL, NULL);
15542
15543 switch (type) {
15544 case NL80211_SAR_TYPE_POWER:
15545 if (nl80211_set_sar_sub_specs(rdev, sar_spec,
15546 spec, specs)) {
15547 err = -EINVAL;
15548 goto error;
15549 }
15550 break;
15551 default:
15552 err = -EINVAL;
15553 goto error;
15554 }
15555 specs++;
15556 }
15557
15558 sar_spec->num_sub_specs = specs;
15559
15560 rdev->cur_cmd_info = info;
15561 err = rdev_set_sar_specs(rdev, sar_spec);
15562 rdev->cur_cmd_info = NULL;
15563error:
15564 kfree(sar_spec);
15565 return err;
15566}
15567
15568#define SELECTOR(__sel, name, value) \
15569 ((__sel) == (value)) ? NL80211_IFL_SEL_##name :
15570int __missing_selector(void);
15571#define IFLAGS(__val) INTERNAL_FLAG_SELECTORS(__val) __missing_selector()
15572
15573static const struct genl_ops nl80211_ops[] = {
15574 {
15575 .cmd = NL80211_CMD_GET_WIPHY,
15576 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15577 .doit = nl80211_get_wiphy,
15578 .dumpit = nl80211_dump_wiphy,
15579 .done = nl80211_dump_wiphy_done,
15580
15581 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
15582 },
15583};
15584
15585static const struct genl_small_ops nl80211_small_ops[] = {
15586 {
15587 .cmd = NL80211_CMD_SET_WIPHY,
15588 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15589 .doit = nl80211_set_wiphy,
15590 .flags = GENL_UNS_ADMIN_PERM,
15591 },
15592 {
15593 .cmd = NL80211_CMD_GET_INTERFACE,
15594 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15595 .doit = nl80211_get_interface,
15596 .dumpit = nl80211_dump_interface,
15597
15598 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV),
15599 },
15600 {
15601 .cmd = NL80211_CMD_SET_INTERFACE,
15602 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15603 .doit = nl80211_set_interface,
15604 .flags = GENL_UNS_ADMIN_PERM,
15605 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV |
15606 NL80211_FLAG_NEED_RTNL),
15607 },
15608 {
15609 .cmd = NL80211_CMD_NEW_INTERFACE,
15610 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15611 .doit = nl80211_new_interface,
15612 .flags = GENL_UNS_ADMIN_PERM,
15613 .internal_flags =
15614 IFLAGS(NL80211_FLAG_NEED_WIPHY |
15615 NL80211_FLAG_NEED_RTNL |
15616
15617 NL80211_FLAG_NO_WIPHY_MTX),
15618 },
15619 {
15620 .cmd = NL80211_CMD_DEL_INTERFACE,
15621 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15622 .doit = nl80211_del_interface,
15623 .flags = GENL_UNS_ADMIN_PERM,
15624 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV |
15625 NL80211_FLAG_NEED_RTNL),
15626 },
15627 {
15628 .cmd = NL80211_CMD_GET_KEY,
15629 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15630 .doit = nl80211_get_key,
15631 .flags = GENL_UNS_ADMIN_PERM,
15632 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15633 },
15634 {
15635 .cmd = NL80211_CMD_SET_KEY,
15636 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15637 .doit = nl80211_set_key,
15638 .flags = GENL_UNS_ADMIN_PERM,
15639 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15640 NL80211_FLAG_CLEAR_SKB),
15641 },
15642 {
15643 .cmd = NL80211_CMD_NEW_KEY,
15644 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15645 .doit = nl80211_new_key,
15646 .flags = GENL_UNS_ADMIN_PERM,
15647 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15648 NL80211_FLAG_CLEAR_SKB),
15649 },
15650 {
15651 .cmd = NL80211_CMD_DEL_KEY,
15652 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15653 .doit = nl80211_del_key,
15654 .flags = GENL_UNS_ADMIN_PERM,
15655 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15656 },
15657 {
15658 .cmd = NL80211_CMD_SET_BEACON,
15659 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15660 .flags = GENL_UNS_ADMIN_PERM,
15661 .doit = nl80211_set_beacon,
15662 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15663 },
15664 {
15665 .cmd = NL80211_CMD_START_AP,
15666 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15667 .flags = GENL_UNS_ADMIN_PERM,
15668 .doit = nl80211_start_ap,
15669 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15670 },
15671 {
15672 .cmd = NL80211_CMD_STOP_AP,
15673 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15674 .flags = GENL_UNS_ADMIN_PERM,
15675 .doit = nl80211_stop_ap,
15676 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15677 },
15678 {
15679 .cmd = NL80211_CMD_GET_STATION,
15680 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15681 .doit = nl80211_get_station,
15682 .dumpit = nl80211_dump_station,
15683 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
15684 },
15685 {
15686 .cmd = NL80211_CMD_SET_STATION,
15687 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15688 .doit = nl80211_set_station,
15689 .flags = GENL_UNS_ADMIN_PERM,
15690 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15691 },
15692 {
15693 .cmd = NL80211_CMD_NEW_STATION,
15694 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15695 .doit = nl80211_new_station,
15696 .flags = GENL_UNS_ADMIN_PERM,
15697 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15698 },
15699 {
15700 .cmd = NL80211_CMD_DEL_STATION,
15701 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15702 .doit = nl80211_del_station,
15703 .flags = GENL_UNS_ADMIN_PERM,
15704 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15705 },
15706 {
15707 .cmd = NL80211_CMD_GET_MPATH,
15708 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15709 .doit = nl80211_get_mpath,
15710 .dumpit = nl80211_dump_mpath,
15711 .flags = GENL_UNS_ADMIN_PERM,
15712 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15713 },
15714 {
15715 .cmd = NL80211_CMD_GET_MPP,
15716 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15717 .doit = nl80211_get_mpp,
15718 .dumpit = nl80211_dump_mpp,
15719 .flags = GENL_UNS_ADMIN_PERM,
15720 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15721 },
15722 {
15723 .cmd = NL80211_CMD_SET_MPATH,
15724 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15725 .doit = nl80211_set_mpath,
15726 .flags = GENL_UNS_ADMIN_PERM,
15727 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15728 },
15729 {
15730 .cmd = NL80211_CMD_NEW_MPATH,
15731 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15732 .doit = nl80211_new_mpath,
15733 .flags = GENL_UNS_ADMIN_PERM,
15734 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15735 },
15736 {
15737 .cmd = NL80211_CMD_DEL_MPATH,
15738 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15739 .doit = nl80211_del_mpath,
15740 .flags = GENL_UNS_ADMIN_PERM,
15741 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15742 },
15743 {
15744 .cmd = NL80211_CMD_SET_BSS,
15745 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15746 .doit = nl80211_set_bss,
15747 .flags = GENL_UNS_ADMIN_PERM,
15748 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15749 },
15750 {
15751 .cmd = NL80211_CMD_GET_REG,
15752 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15753 .doit = nl80211_get_reg_do,
15754 .dumpit = nl80211_get_reg_dump,
15755
15756 },
15757#ifdef CONFIG_CFG80211_CRDA_SUPPORT
15758 {
15759 .cmd = NL80211_CMD_SET_REG,
15760 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15761 .doit = nl80211_set_reg,
15762 .flags = GENL_ADMIN_PERM,
15763 },
15764#endif
15765 {
15766 .cmd = NL80211_CMD_REQ_SET_REG,
15767 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15768 .doit = nl80211_req_set_reg,
15769 .flags = GENL_ADMIN_PERM,
15770 },
15771 {
15772 .cmd = NL80211_CMD_RELOAD_REGDB,
15773 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15774 .doit = nl80211_reload_regdb,
15775 .flags = GENL_ADMIN_PERM,
15776 },
15777 {
15778 .cmd = NL80211_CMD_GET_MESH_CONFIG,
15779 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15780 .doit = nl80211_get_mesh_config,
15781
15782 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15783 },
15784 {
15785 .cmd = NL80211_CMD_SET_MESH_CONFIG,
15786 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15787 .doit = nl80211_update_mesh_config,
15788 .flags = GENL_UNS_ADMIN_PERM,
15789 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15790 },
15791 {
15792 .cmd = NL80211_CMD_TRIGGER_SCAN,
15793 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15794 .doit = nl80211_trigger_scan,
15795 .flags = GENL_UNS_ADMIN_PERM,
15796 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15797 },
15798 {
15799 .cmd = NL80211_CMD_ABORT_SCAN,
15800 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15801 .doit = nl80211_abort_scan,
15802 .flags = GENL_UNS_ADMIN_PERM,
15803 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15804 },
15805 {
15806 .cmd = NL80211_CMD_GET_SCAN,
15807 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15808 .dumpit = nl80211_dump_scan,
15809 },
15810 {
15811 .cmd = NL80211_CMD_START_SCHED_SCAN,
15812 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15813 .doit = nl80211_start_sched_scan,
15814 .flags = GENL_UNS_ADMIN_PERM,
15815 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15816 },
15817 {
15818 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
15819 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15820 .doit = nl80211_stop_sched_scan,
15821 .flags = GENL_UNS_ADMIN_PERM,
15822 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15823 },
15824 {
15825 .cmd = NL80211_CMD_AUTHENTICATE,
15826 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15827 .doit = nl80211_authenticate,
15828 .flags = GENL_UNS_ADMIN_PERM,
15829 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15830 NL80211_FLAG_CLEAR_SKB),
15831 },
15832 {
15833 .cmd = NL80211_CMD_ASSOCIATE,
15834 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15835 .doit = nl80211_associate,
15836 .flags = GENL_UNS_ADMIN_PERM,
15837 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15838 NL80211_FLAG_CLEAR_SKB),
15839 },
15840 {
15841 .cmd = NL80211_CMD_DEAUTHENTICATE,
15842 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15843 .doit = nl80211_deauthenticate,
15844 .flags = GENL_UNS_ADMIN_PERM,
15845 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15846 },
15847 {
15848 .cmd = NL80211_CMD_DISASSOCIATE,
15849 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15850 .doit = nl80211_disassociate,
15851 .flags = GENL_UNS_ADMIN_PERM,
15852 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15853 },
15854 {
15855 .cmd = NL80211_CMD_JOIN_IBSS,
15856 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15857 .doit = nl80211_join_ibss,
15858 .flags = GENL_UNS_ADMIN_PERM,
15859 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15860 },
15861 {
15862 .cmd = NL80211_CMD_LEAVE_IBSS,
15863 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15864 .doit = nl80211_leave_ibss,
15865 .flags = GENL_UNS_ADMIN_PERM,
15866 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15867 },
15868#ifdef CONFIG_NL80211_TESTMODE
15869 {
15870 .cmd = NL80211_CMD_TESTMODE,
15871 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15872 .doit = nl80211_testmode_do,
15873 .dumpit = nl80211_testmode_dump,
15874 .flags = GENL_UNS_ADMIN_PERM,
15875 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
15876 },
15877#endif
15878 {
15879 .cmd = NL80211_CMD_CONNECT,
15880 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15881 .doit = nl80211_connect,
15882 .flags = GENL_UNS_ADMIN_PERM,
15883 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15884 NL80211_FLAG_CLEAR_SKB),
15885 },
15886 {
15887 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
15888 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15889 .doit = nl80211_update_connect_params,
15890 .flags = GENL_ADMIN_PERM,
15891 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15892 NL80211_FLAG_CLEAR_SKB),
15893 },
15894 {
15895 .cmd = NL80211_CMD_DISCONNECT,
15896 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15897 .doit = nl80211_disconnect,
15898 .flags = GENL_UNS_ADMIN_PERM,
15899 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15900 },
15901 {
15902 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
15903 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15904 .doit = nl80211_wiphy_netns,
15905 .flags = GENL_UNS_ADMIN_PERM,
15906 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY |
15907 NL80211_FLAG_NEED_RTNL |
15908 NL80211_FLAG_NO_WIPHY_MTX),
15909 },
15910 {
15911 .cmd = NL80211_CMD_GET_SURVEY,
15912 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15913 .dumpit = nl80211_dump_survey,
15914 },
15915 {
15916 .cmd = NL80211_CMD_SET_PMKSA,
15917 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15918 .doit = nl80211_setdel_pmksa,
15919 .flags = GENL_UNS_ADMIN_PERM,
15920 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
15921 NL80211_FLAG_CLEAR_SKB),
15922 },
15923 {
15924 .cmd = NL80211_CMD_DEL_PMKSA,
15925 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15926 .doit = nl80211_setdel_pmksa,
15927 .flags = GENL_UNS_ADMIN_PERM,
15928 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15929 },
15930 {
15931 .cmd = NL80211_CMD_FLUSH_PMKSA,
15932 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15933 .doit = nl80211_flush_pmksa,
15934 .flags = GENL_UNS_ADMIN_PERM,
15935 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
15936 },
15937 {
15938 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
15939 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15940 .doit = nl80211_remain_on_channel,
15941 .flags = GENL_UNS_ADMIN_PERM,
15942 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15943 },
15944 {
15945 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
15946 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15947 .doit = nl80211_cancel_remain_on_channel,
15948 .flags = GENL_UNS_ADMIN_PERM,
15949 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15950 },
15951 {
15952 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
15953 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15954 .doit = nl80211_set_tx_bitrate_mask,
15955 .flags = GENL_UNS_ADMIN_PERM,
15956 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
15957 },
15958 {
15959 .cmd = NL80211_CMD_REGISTER_FRAME,
15960 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15961 .doit = nl80211_register_mgmt,
15962 .flags = GENL_UNS_ADMIN_PERM,
15963 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV),
15964 },
15965 {
15966 .cmd = NL80211_CMD_FRAME,
15967 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15968 .doit = nl80211_tx_mgmt,
15969 .flags = GENL_UNS_ADMIN_PERM,
15970 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15971 },
15972 {
15973 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
15974 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15975 .doit = nl80211_tx_mgmt_cancel_wait,
15976 .flags = GENL_UNS_ADMIN_PERM,
15977 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
15978 },
15979 {
15980 .cmd = NL80211_CMD_SET_POWER_SAVE,
15981 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15982 .doit = nl80211_set_power_save,
15983 .flags = GENL_UNS_ADMIN_PERM,
15984 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
15985 },
15986 {
15987 .cmd = NL80211_CMD_GET_POWER_SAVE,
15988 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15989 .doit = nl80211_get_power_save,
15990
15991 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
15992 },
15993 {
15994 .cmd = NL80211_CMD_SET_CQM,
15995 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
15996 .doit = nl80211_set_cqm,
15997 .flags = GENL_UNS_ADMIN_PERM,
15998 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
15999 },
16000 {
16001 .cmd = NL80211_CMD_SET_CHANNEL,
16002 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16003 .doit = nl80211_set_channel,
16004 .flags = GENL_UNS_ADMIN_PERM,
16005 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16006 },
16007 {
16008 .cmd = NL80211_CMD_JOIN_MESH,
16009 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16010 .doit = nl80211_join_mesh,
16011 .flags = GENL_UNS_ADMIN_PERM,
16012 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16013 },
16014 {
16015 .cmd = NL80211_CMD_LEAVE_MESH,
16016 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16017 .doit = nl80211_leave_mesh,
16018 .flags = GENL_UNS_ADMIN_PERM,
16019 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16020 },
16021 {
16022 .cmd = NL80211_CMD_JOIN_OCB,
16023 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16024 .doit = nl80211_join_ocb,
16025 .flags = GENL_UNS_ADMIN_PERM,
16026 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16027 },
16028 {
16029 .cmd = NL80211_CMD_LEAVE_OCB,
16030 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16031 .doit = nl80211_leave_ocb,
16032 .flags = GENL_UNS_ADMIN_PERM,
16033 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16034 },
16035#ifdef CONFIG_PM
16036 {
16037 .cmd = NL80211_CMD_GET_WOWLAN,
16038 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16039 .doit = nl80211_get_wowlan,
16040
16041 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
16042 },
16043 {
16044 .cmd = NL80211_CMD_SET_WOWLAN,
16045 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16046 .doit = nl80211_set_wowlan,
16047 .flags = GENL_UNS_ADMIN_PERM,
16048 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
16049 },
16050#endif
16051 {
16052 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
16053 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16054 .doit = nl80211_set_rekey_data,
16055 .flags = GENL_UNS_ADMIN_PERM,
16056 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
16057 NL80211_FLAG_CLEAR_SKB),
16058 },
16059 {
16060 .cmd = NL80211_CMD_TDLS_MGMT,
16061 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16062 .doit = nl80211_tdls_mgmt,
16063 .flags = GENL_UNS_ADMIN_PERM,
16064 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16065 },
16066 {
16067 .cmd = NL80211_CMD_TDLS_OPER,
16068 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16069 .doit = nl80211_tdls_oper,
16070 .flags = GENL_UNS_ADMIN_PERM,
16071 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16072 },
16073 {
16074 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
16075 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16076 .doit = nl80211_register_unexpected_frame,
16077 .flags = GENL_UNS_ADMIN_PERM,
16078 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16079 },
16080 {
16081 .cmd = NL80211_CMD_PROBE_CLIENT,
16082 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16083 .doit = nl80211_probe_client,
16084 .flags = GENL_UNS_ADMIN_PERM,
16085 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16086 },
16087 {
16088 .cmd = NL80211_CMD_REGISTER_BEACONS,
16089 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16090 .doit = nl80211_register_beacons,
16091 .flags = GENL_UNS_ADMIN_PERM,
16092 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
16093 },
16094 {
16095 .cmd = NL80211_CMD_SET_NOACK_MAP,
16096 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16097 .doit = nl80211_set_noack_map,
16098 .flags = GENL_UNS_ADMIN_PERM,
16099 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16100 },
16101 {
16102 .cmd = NL80211_CMD_START_P2P_DEVICE,
16103 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16104 .doit = nl80211_start_p2p_device,
16105 .flags = GENL_UNS_ADMIN_PERM,
16106 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV |
16107 NL80211_FLAG_NEED_RTNL),
16108 },
16109 {
16110 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
16111 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16112 .doit = nl80211_stop_p2p_device,
16113 .flags = GENL_UNS_ADMIN_PERM,
16114 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP |
16115 NL80211_FLAG_NEED_RTNL),
16116 },
16117 {
16118 .cmd = NL80211_CMD_START_NAN,
16119 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16120 .doit = nl80211_start_nan,
16121 .flags = GENL_ADMIN_PERM,
16122 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV |
16123 NL80211_FLAG_NEED_RTNL),
16124 },
16125 {
16126 .cmd = NL80211_CMD_STOP_NAN,
16127 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16128 .doit = nl80211_stop_nan,
16129 .flags = GENL_ADMIN_PERM,
16130 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP |
16131 NL80211_FLAG_NEED_RTNL),
16132 },
16133 {
16134 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
16135 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16136 .doit = nl80211_nan_add_func,
16137 .flags = GENL_ADMIN_PERM,
16138 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16139 },
16140 {
16141 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
16142 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16143 .doit = nl80211_nan_del_func,
16144 .flags = GENL_ADMIN_PERM,
16145 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16146 },
16147 {
16148 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
16149 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16150 .doit = nl80211_nan_change_config,
16151 .flags = GENL_ADMIN_PERM,
16152 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16153 },
16154 {
16155 .cmd = NL80211_CMD_SET_MCAST_RATE,
16156 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16157 .doit = nl80211_set_mcast_rate,
16158 .flags = GENL_UNS_ADMIN_PERM,
16159 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16160 },
16161 {
16162 .cmd = NL80211_CMD_SET_MAC_ACL,
16163 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16164 .doit = nl80211_set_mac_acl,
16165 .flags = GENL_UNS_ADMIN_PERM,
16166 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16167 },
16168 {
16169 .cmd = NL80211_CMD_RADAR_DETECT,
16170 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16171 .doit = nl80211_start_radar_detection,
16172 .flags = GENL_UNS_ADMIN_PERM,
16173 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
16174 NL80211_FLAG_NO_WIPHY_MTX),
16175 },
16176 {
16177 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
16178 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16179 .doit = nl80211_get_protocol_features,
16180 },
16181 {
16182 .cmd = NL80211_CMD_UPDATE_FT_IES,
16183 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16184 .doit = nl80211_update_ft_ies,
16185 .flags = GENL_UNS_ADMIN_PERM,
16186 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16187 },
16188 {
16189 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
16190 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16191 .doit = nl80211_crit_protocol_start,
16192 .flags = GENL_UNS_ADMIN_PERM,
16193 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16194 },
16195 {
16196 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
16197 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16198 .doit = nl80211_crit_protocol_stop,
16199 .flags = GENL_UNS_ADMIN_PERM,
16200 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16201 },
16202 {
16203 .cmd = NL80211_CMD_GET_COALESCE,
16204 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16205 .doit = nl80211_get_coalesce,
16206 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
16207 },
16208 {
16209 .cmd = NL80211_CMD_SET_COALESCE,
16210 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16211 .doit = nl80211_set_coalesce,
16212 .flags = GENL_UNS_ADMIN_PERM,
16213 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY),
16214 },
16215 {
16216 .cmd = NL80211_CMD_CHANNEL_SWITCH,
16217 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16218 .doit = nl80211_channel_switch,
16219 .flags = GENL_UNS_ADMIN_PERM,
16220 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16221 },
16222 {
16223 .cmd = NL80211_CMD_VENDOR,
16224 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16225 .doit = nl80211_vendor_cmd,
16226 .dumpit = nl80211_vendor_cmd_dump,
16227 .flags = GENL_UNS_ADMIN_PERM,
16228 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY |
16229 NL80211_FLAG_CLEAR_SKB),
16230 },
16231 {
16232 .cmd = NL80211_CMD_SET_QOS_MAP,
16233 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16234 .doit = nl80211_set_qos_map,
16235 .flags = GENL_UNS_ADMIN_PERM,
16236 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16237 },
16238 {
16239 .cmd = NL80211_CMD_ADD_TX_TS,
16240 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16241 .doit = nl80211_add_tx_ts,
16242 .flags = GENL_UNS_ADMIN_PERM,
16243 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16244 },
16245 {
16246 .cmd = NL80211_CMD_DEL_TX_TS,
16247 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16248 .doit = nl80211_del_tx_ts,
16249 .flags = GENL_UNS_ADMIN_PERM,
16250 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16251 },
16252 {
16253 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
16254 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16255 .doit = nl80211_tdls_channel_switch,
16256 .flags = GENL_UNS_ADMIN_PERM,
16257 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16258 },
16259 {
16260 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
16261 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16262 .doit = nl80211_tdls_cancel_channel_switch,
16263 .flags = GENL_UNS_ADMIN_PERM,
16264 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16265 },
16266 {
16267 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
16268 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16269 .doit = nl80211_set_multicast_to_unicast,
16270 .flags = GENL_UNS_ADMIN_PERM,
16271 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16272 },
16273 {
16274 .cmd = NL80211_CMD_SET_PMK,
16275 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16276 .doit = nl80211_set_pmk,
16277 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP |
16278 NL80211_FLAG_CLEAR_SKB),
16279 },
16280 {
16281 .cmd = NL80211_CMD_DEL_PMK,
16282 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16283 .doit = nl80211_del_pmk,
16284 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16285 },
16286 {
16287 .cmd = NL80211_CMD_EXTERNAL_AUTH,
16288 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16289 .doit = nl80211_external_auth,
16290 .flags = GENL_ADMIN_PERM,
16291 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16292 },
16293 {
16294 .cmd = NL80211_CMD_CONTROL_PORT_FRAME,
16295 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16296 .doit = nl80211_tx_control_port,
16297 .flags = GENL_UNS_ADMIN_PERM,
16298 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16299 },
16300 {
16301 .cmd = NL80211_CMD_GET_FTM_RESPONDER_STATS,
16302 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16303 .doit = nl80211_get_ftm_responder_stats,
16304 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16305 },
16306 {
16307 .cmd = NL80211_CMD_PEER_MEASUREMENT_START,
16308 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16309 .doit = nl80211_pmsr_start,
16310 .flags = GENL_UNS_ADMIN_PERM,
16311 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
16312 },
16313 {
16314 .cmd = NL80211_CMD_NOTIFY_RADAR,
16315 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16316 .doit = nl80211_notify_radar_detection,
16317 .flags = GENL_UNS_ADMIN_PERM,
16318 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16319 },
16320 {
16321 .cmd = NL80211_CMD_UPDATE_OWE_INFO,
16322 .doit = nl80211_update_owe_info,
16323 .flags = GENL_ADMIN_PERM,
16324 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16325 },
16326 {
16327 .cmd = NL80211_CMD_PROBE_MESH_LINK,
16328 .doit = nl80211_probe_mesh_link,
16329 .flags = GENL_UNS_ADMIN_PERM,
16330 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16331 },
16332 {
16333 .cmd = NL80211_CMD_SET_TID_CONFIG,
16334 .doit = nl80211_set_tid_config,
16335 .flags = GENL_UNS_ADMIN_PERM,
16336 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV),
16337 },
16338 {
16339 .cmd = NL80211_CMD_SET_SAR_SPECS,
16340 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16341 .doit = nl80211_set_sar_specs,
16342 .flags = GENL_UNS_ADMIN_PERM,
16343 .internal_flags = IFLAGS(NL80211_FLAG_NEED_WIPHY |
16344 NL80211_FLAG_NEED_RTNL),
16345 },
16346 {
16347 .cmd = NL80211_CMD_COLOR_CHANGE_REQUEST,
16348 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16349 .doit = nl80211_color_change,
16350 .flags = GENL_UNS_ADMIN_PERM,
16351 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16352 },
16353 {
16354 .cmd = NL80211_CMD_SET_FILS_AAD,
16355 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
16356 .doit = nl80211_set_fils_aad,
16357 .flags = GENL_UNS_ADMIN_PERM,
16358 .internal_flags = IFLAGS(NL80211_FLAG_NEED_NETDEV_UP),
16359 },
16360};
16361
16362static struct genl_family nl80211_fam __ro_after_init = {
16363 .name = NL80211_GENL_NAME,
16364 .hdrsize = 0,
16365 .version = 1,
16366 .maxattr = NL80211_ATTR_MAX,
16367 .policy = nl80211_policy,
16368 .netnsok = true,
16369 .pre_doit = nl80211_pre_doit,
16370 .post_doit = nl80211_post_doit,
16371 .module = THIS_MODULE,
16372 .ops = nl80211_ops,
16373 .n_ops = ARRAY_SIZE(nl80211_ops),
16374 .small_ops = nl80211_small_ops,
16375 .n_small_ops = ARRAY_SIZE(nl80211_small_ops),
16376 .mcgrps = nl80211_mcgrps,
16377 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
16378 .parallel_ops = true,
16379};
16380
16381
16382
16383void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
16384 enum nl80211_commands cmd)
16385{
16386 struct sk_buff *msg;
16387 struct nl80211_dump_wiphy_state state = {};
16388
16389 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
16390 cmd != NL80211_CMD_DEL_WIPHY);
16391
16392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16393 if (!msg)
16394 return;
16395
16396 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
16397 nlmsg_free(msg);
16398 return;
16399 }
16400
16401 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16402 NL80211_MCGRP_CONFIG, GFP_KERNEL);
16403}
16404
16405void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
16406 struct wireless_dev *wdev,
16407 enum nl80211_commands cmd)
16408{
16409 struct sk_buff *msg;
16410
16411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16412 if (!msg)
16413 return;
16414
16415 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, cmd) < 0) {
16416 nlmsg_free(msg);
16417 return;
16418 }
16419
16420 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16421 NL80211_MCGRP_CONFIG, GFP_KERNEL);
16422}
16423
16424static int nl80211_add_scan_req(struct sk_buff *msg,
16425 struct cfg80211_registered_device *rdev)
16426{
16427 struct cfg80211_scan_request *req = rdev->scan_req;
16428 struct nlattr *nest;
16429 int i;
16430 struct cfg80211_scan_info *info;
16431
16432 if (WARN_ON(!req))
16433 return 0;
16434
16435 nest = nla_nest_start_noflag(msg, NL80211_ATTR_SCAN_SSIDS);
16436 if (!nest)
16437 goto nla_put_failure;
16438 for (i = 0; i < req->n_ssids; i++) {
16439 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
16440 goto nla_put_failure;
16441 }
16442 nla_nest_end(msg, nest);
16443
16444 if (req->flags & NL80211_SCAN_FLAG_FREQ_KHZ) {
16445 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQ_KHZ);
16446 if (!nest)
16447 goto nla_put_failure;
16448 for (i = 0; i < req->n_channels; i++) {
16449 if (nla_put_u32(msg, i,
16450 ieee80211_channel_to_khz(req->channels[i])))
16451 goto nla_put_failure;
16452 }
16453 nla_nest_end(msg, nest);
16454 } else {
16455 nest = nla_nest_start_noflag(msg,
16456 NL80211_ATTR_SCAN_FREQUENCIES);
16457 if (!nest)
16458 goto nla_put_failure;
16459 for (i = 0; i < req->n_channels; i++) {
16460 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
16461 goto nla_put_failure;
16462 }
16463 nla_nest_end(msg, nest);
16464 }
16465
16466 if (req->ie &&
16467 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
16468 goto nla_put_failure;
16469
16470 if (req->flags &&
16471 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
16472 goto nla_put_failure;
16473
16474 info = rdev->int_scan_req ? &rdev->int_scan_req->info :
16475 &rdev->scan_req->info;
16476 if (info->scan_start_tsf &&
16477 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
16478 info->scan_start_tsf, NL80211_BSS_PAD) ||
16479 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
16480 info->tsf_bssid)))
16481 goto nla_put_failure;
16482
16483 return 0;
16484 nla_put_failure:
16485 return -ENOBUFS;
16486}
16487
16488static int nl80211_prep_scan_msg(struct sk_buff *msg,
16489 struct cfg80211_registered_device *rdev,
16490 struct wireless_dev *wdev,
16491 u32 portid, u32 seq, int flags,
16492 u32 cmd)
16493{
16494 void *hdr;
16495
16496 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
16497 if (!hdr)
16498 return -1;
16499
16500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16501 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
16502 wdev->netdev->ifindex)) ||
16503 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
16504 NL80211_ATTR_PAD))
16505 goto nla_put_failure;
16506
16507
16508 nl80211_add_scan_req(msg, rdev);
16509
16510 genlmsg_end(msg, hdr);
16511 return 0;
16512
16513 nla_put_failure:
16514 genlmsg_cancel(msg, hdr);
16515 return -EMSGSIZE;
16516}
16517
16518static int
16519nl80211_prep_sched_scan_msg(struct sk_buff *msg,
16520 struct cfg80211_sched_scan_request *req, u32 cmd)
16521{
16522 void *hdr;
16523
16524 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
16525 if (!hdr)
16526 return -1;
16527
16528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
16529 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
16530 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
16531 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
16532 NL80211_ATTR_PAD))
16533 goto nla_put_failure;
16534
16535 genlmsg_end(msg, hdr);
16536 return 0;
16537
16538 nla_put_failure:
16539 genlmsg_cancel(msg, hdr);
16540 return -EMSGSIZE;
16541}
16542
16543void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
16544 struct wireless_dev *wdev)
16545{
16546 struct sk_buff *msg;
16547
16548 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16549 if (!msg)
16550 return;
16551
16552 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
16553 NL80211_CMD_TRIGGER_SCAN) < 0) {
16554 nlmsg_free(msg);
16555 return;
16556 }
16557
16558 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16559 NL80211_MCGRP_SCAN, GFP_KERNEL);
16560}
16561
16562struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
16563 struct wireless_dev *wdev, bool aborted)
16564{
16565 struct sk_buff *msg;
16566
16567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16568 if (!msg)
16569 return NULL;
16570
16571 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
16572 aborted ? NL80211_CMD_SCAN_ABORTED :
16573 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
16574 nlmsg_free(msg);
16575 return NULL;
16576 }
16577
16578 return msg;
16579}
16580
16581
16582void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
16583 struct sk_buff *msg)
16584{
16585 if (!msg)
16586 return;
16587
16588 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16589 NL80211_MCGRP_SCAN, GFP_KERNEL);
16590}
16591
16592void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
16593{
16594 struct sk_buff *msg;
16595
16596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16597 if (!msg)
16598 return;
16599
16600 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
16601 nlmsg_free(msg);
16602 return;
16603 }
16604
16605 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
16606 NL80211_MCGRP_SCAN, GFP_KERNEL);
16607}
16608
16609static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
16610 struct regulatory_request *request)
16611{
16612
16613 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
16614 goto nla_put_failure;
16615
16616 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
16617 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
16618 NL80211_REGDOM_TYPE_WORLD))
16619 goto nla_put_failure;
16620 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
16621 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
16622 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
16623 goto nla_put_failure;
16624 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
16625 request->intersect) {
16626 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
16627 NL80211_REGDOM_TYPE_INTERSECTION))
16628 goto nla_put_failure;
16629 } else {
16630 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
16631 NL80211_REGDOM_TYPE_COUNTRY) ||
16632 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
16633 request->alpha2))
16634 goto nla_put_failure;
16635 }
16636
16637 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
16638 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
16639
16640 if (wiphy &&
16641 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
16642 goto nla_put_failure;
16643
16644 if (wiphy &&
16645 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
16646 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
16647 goto nla_put_failure;
16648 }
16649
16650 return true;
16651
16652nla_put_failure:
16653 return false;
16654}
16655
16656
16657
16658
16659
16660void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
16661 struct regulatory_request *request)
16662{
16663 struct sk_buff *msg;
16664 void *hdr;
16665
16666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16667 if (!msg)
16668 return;
16669
16670 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
16671 if (!hdr)
16672 goto nla_put_failure;
16673
16674 if (!nl80211_reg_change_event_fill(msg, request))
16675 goto nla_put_failure;
16676
16677 genlmsg_end(msg, hdr);
16678
16679 rcu_read_lock();
16680 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
16681 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
16682 rcu_read_unlock();
16683
16684 return;
16685
16686nla_put_failure:
16687 nlmsg_free(msg);
16688}
16689
16690static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
16691 struct net_device *netdev,
16692 const u8 *buf, size_t len,
16693 enum nl80211_commands cmd, gfp_t gfp,
16694 int uapsd_queues, const u8 *req_ies,
16695 size_t req_ies_len, bool reconnect)
16696{
16697 struct sk_buff *msg;
16698 void *hdr;
16699
16700 msg = nlmsg_new(100 + len + req_ies_len, gfp);
16701 if (!msg)
16702 return;
16703
16704 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
16705 if (!hdr) {
16706 nlmsg_free(msg);
16707 return;
16708 }
16709
16710 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16711 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
16712 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
16713 (req_ies &&
16714 nla_put(msg, NL80211_ATTR_REQ_IE, req_ies_len, req_ies)))
16715 goto nla_put_failure;
16716
16717 if (reconnect && nla_put_flag(msg, NL80211_ATTR_RECONNECT_REQUESTED))
16718 goto nla_put_failure;
16719
16720 if (uapsd_queues >= 0) {
16721 struct nlattr *nla_wmm =
16722 nla_nest_start_noflag(msg, NL80211_ATTR_STA_WME);
16723 if (!nla_wmm)
16724 goto nla_put_failure;
16725
16726 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
16727 uapsd_queues))
16728 goto nla_put_failure;
16729
16730 nla_nest_end(msg, nla_wmm);
16731 }
16732
16733 genlmsg_end(msg, hdr);
16734
16735 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16736 NL80211_MCGRP_MLME, gfp);
16737 return;
16738
16739 nla_put_failure:
16740 nlmsg_free(msg);
16741}
16742
16743void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
16744 struct net_device *netdev, const u8 *buf,
16745 size_t len, gfp_t gfp)
16746{
16747 nl80211_send_mlme_event(rdev, netdev, buf, len,
16748 NL80211_CMD_AUTHENTICATE, gfp, -1, NULL, 0,
16749 false);
16750}
16751
16752void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
16753 struct net_device *netdev, const u8 *buf,
16754 size_t len, gfp_t gfp, int uapsd_queues,
16755 const u8 *req_ies, size_t req_ies_len)
16756{
16757 nl80211_send_mlme_event(rdev, netdev, buf, len,
16758 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues,
16759 req_ies, req_ies_len, false);
16760}
16761
16762void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
16763 struct net_device *netdev, const u8 *buf,
16764 size_t len, bool reconnect, gfp_t gfp)
16765{
16766 nl80211_send_mlme_event(rdev, netdev, buf, len,
16767 NL80211_CMD_DEAUTHENTICATE, gfp, -1, NULL, 0,
16768 reconnect);
16769}
16770
16771void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
16772 struct net_device *netdev, const u8 *buf,
16773 size_t len, bool reconnect, gfp_t gfp)
16774{
16775 nl80211_send_mlme_event(rdev, netdev, buf, len,
16776 NL80211_CMD_DISASSOCIATE, gfp, -1, NULL, 0,
16777 reconnect);
16778}
16779
16780void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
16781 size_t len)
16782{
16783 struct wireless_dev *wdev = dev->ieee80211_ptr;
16784 struct wiphy *wiphy = wdev->wiphy;
16785 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
16786 const struct ieee80211_mgmt *mgmt = (void *)buf;
16787 u32 cmd;
16788
16789 if (WARN_ON(len < 2))
16790 return;
16791
16792 if (ieee80211_is_deauth(mgmt->frame_control)) {
16793 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
16794 } else if (ieee80211_is_disassoc(mgmt->frame_control)) {
16795 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
16796 } else if (ieee80211_is_beacon(mgmt->frame_control)) {
16797 if (wdev->unprot_beacon_reported &&
16798 elapsed_jiffies_msecs(wdev->unprot_beacon_reported) < 10000)
16799 return;
16800 cmd = NL80211_CMD_UNPROT_BEACON;
16801 wdev->unprot_beacon_reported = jiffies;
16802 } else {
16803 return;
16804 }
16805
16806 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
16807 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1,
16808 NULL, 0, false);
16809}
16810EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
16811
16812static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
16813 struct net_device *netdev, int cmd,
16814 const u8 *addr, gfp_t gfp)
16815{
16816 struct sk_buff *msg;
16817 void *hdr;
16818
16819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
16820 if (!msg)
16821 return;
16822
16823 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
16824 if (!hdr) {
16825 nlmsg_free(msg);
16826 return;
16827 }
16828
16829 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16830 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
16831 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
16832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
16833 goto nla_put_failure;
16834
16835 genlmsg_end(msg, hdr);
16836
16837 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16838 NL80211_MCGRP_MLME, gfp);
16839 return;
16840
16841 nla_put_failure:
16842 nlmsg_free(msg);
16843}
16844
16845void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
16846 struct net_device *netdev, const u8 *addr,
16847 gfp_t gfp)
16848{
16849 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
16850 addr, gfp);
16851}
16852
16853void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
16854 struct net_device *netdev, const u8 *addr,
16855 gfp_t gfp)
16856{
16857 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
16858 addr, gfp);
16859}
16860
16861void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
16862 struct net_device *netdev,
16863 struct cfg80211_connect_resp_params *cr,
16864 gfp_t gfp)
16865{
16866 struct sk_buff *msg;
16867 void *hdr;
16868
16869 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
16870 cr->fils.kek_len + cr->fils.pmk_len +
16871 (cr->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
16872 if (!msg)
16873 return;
16874
16875 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
16876 if (!hdr) {
16877 nlmsg_free(msg);
16878 return;
16879 }
16880
16881 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16882 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
16883 (cr->bssid &&
16884 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
16885 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
16886 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
16887 cr->status) ||
16888 (cr->status < 0 &&
16889 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
16890 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
16891 cr->timeout_reason))) ||
16892 (cr->req_ie &&
16893 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
16894 (cr->resp_ie &&
16895 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
16896 cr->resp_ie)) ||
16897 (cr->fils.update_erp_next_seq_num &&
16898 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
16899 cr->fils.erp_next_seq_num)) ||
16900 (cr->status == WLAN_STATUS_SUCCESS &&
16901 ((cr->fils.kek &&
16902 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils.kek_len,
16903 cr->fils.kek)) ||
16904 (cr->fils.pmk &&
16905 nla_put(msg, NL80211_ATTR_PMK, cr->fils.pmk_len, cr->fils.pmk)) ||
16906 (cr->fils.pmkid &&
16907 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->fils.pmkid)))))
16908 goto nla_put_failure;
16909
16910 genlmsg_end(msg, hdr);
16911
16912 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16913 NL80211_MCGRP_MLME, gfp);
16914 return;
16915
16916 nla_put_failure:
16917 nlmsg_free(msg);
16918}
16919
16920void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
16921 struct net_device *netdev,
16922 struct cfg80211_roam_info *info, gfp_t gfp)
16923{
16924 struct sk_buff *msg;
16925 void *hdr;
16926 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
16927
16928 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len +
16929 info->fils.kek_len + info->fils.pmk_len +
16930 (info->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
16931 if (!msg)
16932 return;
16933
16934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
16935 if (!hdr) {
16936 nlmsg_free(msg);
16937 return;
16938 }
16939
16940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16941 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
16942 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
16943 (info->req_ie &&
16944 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
16945 info->req_ie)) ||
16946 (info->resp_ie &&
16947 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
16948 info->resp_ie)) ||
16949 (info->fils.update_erp_next_seq_num &&
16950 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
16951 info->fils.erp_next_seq_num)) ||
16952 (info->fils.kek &&
16953 nla_put(msg, NL80211_ATTR_FILS_KEK, info->fils.kek_len,
16954 info->fils.kek)) ||
16955 (info->fils.pmk &&
16956 nla_put(msg, NL80211_ATTR_PMK, info->fils.pmk_len, info->fils.pmk)) ||
16957 (info->fils.pmkid &&
16958 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, info->fils.pmkid)))
16959 goto nla_put_failure;
16960
16961 genlmsg_end(msg, hdr);
16962
16963 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16964 NL80211_MCGRP_MLME, gfp);
16965 return;
16966
16967 nla_put_failure:
16968 nlmsg_free(msg);
16969}
16970
16971void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
16972 struct net_device *netdev, const u8 *bssid)
16973{
16974 struct sk_buff *msg;
16975 void *hdr;
16976
16977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16978 if (!msg)
16979 return;
16980
16981 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
16982 if (!hdr) {
16983 nlmsg_free(msg);
16984 return;
16985 }
16986
16987 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16988 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
16989 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
16990 goto nla_put_failure;
16991
16992 genlmsg_end(msg, hdr);
16993
16994 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
16995 NL80211_MCGRP_MLME, GFP_KERNEL);
16996 return;
16997
16998 nla_put_failure:
16999 nlmsg_free(msg);
17000}
17001
17002void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
17003 struct net_device *netdev, u16 reason,
17004 const u8 *ie, size_t ie_len, bool from_ap)
17005{
17006 struct sk_buff *msg;
17007 void *hdr;
17008
17009 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
17010 if (!msg)
17011 return;
17012
17013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
17014 if (!hdr) {
17015 nlmsg_free(msg);
17016 return;
17017 }
17018
17019 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17020 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
17021 (reason &&
17022 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
17023 (from_ap &&
17024 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
17025 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
17026 goto nla_put_failure;
17027
17028 genlmsg_end(msg, hdr);
17029
17030 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17031 NL80211_MCGRP_MLME, GFP_KERNEL);
17032 return;
17033
17034 nla_put_failure:
17035 nlmsg_free(msg);
17036}
17037
17038void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
17039 struct net_device *netdev, const u8 *bssid,
17040 gfp_t gfp)
17041{
17042 struct sk_buff *msg;
17043 void *hdr;
17044
17045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17046 if (!msg)
17047 return;
17048
17049 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
17050 if (!hdr) {
17051 nlmsg_free(msg);
17052 return;
17053 }
17054
17055 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17056 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
17057 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
17058 goto nla_put_failure;
17059
17060 genlmsg_end(msg, hdr);
17061
17062 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17063 NL80211_MCGRP_MLME, gfp);
17064 return;
17065
17066 nla_put_failure:
17067 nlmsg_free(msg);
17068}
17069
17070void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
17071 const u8 *ie, u8 ie_len,
17072 int sig_dbm, gfp_t gfp)
17073{
17074 struct wireless_dev *wdev = dev->ieee80211_ptr;
17075 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
17076 struct sk_buff *msg;
17077 void *hdr;
17078
17079 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
17080 return;
17081
17082 trace_cfg80211_notify_new_peer_candidate(dev, addr);
17083
17084 msg = nlmsg_new(100 + ie_len, gfp);
17085 if (!msg)
17086 return;
17087
17088 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
17089 if (!hdr) {
17090 nlmsg_free(msg);
17091 return;
17092 }
17093
17094 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17095 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
17096 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
17097 (ie_len && ie &&
17098 nla_put(msg, NL80211_ATTR_IE, ie_len, ie)) ||
17099 (sig_dbm &&
17100 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)))
17101 goto nla_put_failure;
17102
17103 genlmsg_end(msg, hdr);
17104
17105 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17106 NL80211_MCGRP_MLME, gfp);
17107 return;
17108
17109 nla_put_failure:
17110 nlmsg_free(msg);
17111}
17112EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
17113
17114void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
17115 struct net_device *netdev, const u8 *addr,
17116 enum nl80211_key_type key_type, int key_id,
17117 const u8 *tsc, gfp_t gfp)
17118{
17119 struct sk_buff *msg;
17120 void *hdr;
17121
17122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17123 if (!msg)
17124 return;
17125
17126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
17127 if (!hdr) {
17128 nlmsg_free(msg);
17129 return;
17130 }
17131
17132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
17134 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
17135 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
17136 (key_id != -1 &&
17137 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
17138 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
17139 goto nla_put_failure;
17140
17141 genlmsg_end(msg, hdr);
17142
17143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17144 NL80211_MCGRP_MLME, gfp);
17145 return;
17146
17147 nla_put_failure:
17148 nlmsg_free(msg);
17149}
17150
17151void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
17152 struct ieee80211_channel *channel_before,
17153 struct ieee80211_channel *channel_after)
17154{
17155 struct sk_buff *msg;
17156 void *hdr;
17157 struct nlattr *nl_freq;
17158
17159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
17160 if (!msg)
17161 return;
17162
17163 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
17164 if (!hdr) {
17165 nlmsg_free(msg);
17166 return;
17167 }
17168
17169
17170
17171
17172
17173 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
17174 goto nla_put_failure;
17175
17176
17177 nl_freq = nla_nest_start_noflag(msg, NL80211_ATTR_FREQ_BEFORE);
17178 if (!nl_freq)
17179 goto nla_put_failure;
17180
17181 if (nl80211_msg_put_channel(msg, wiphy, channel_before, false))
17182 goto nla_put_failure;
17183 nla_nest_end(msg, nl_freq);
17184
17185
17186 nl_freq = nla_nest_start_noflag(msg, NL80211_ATTR_FREQ_AFTER);
17187 if (!nl_freq)
17188 goto nla_put_failure;
17189
17190 if (nl80211_msg_put_channel(msg, wiphy, channel_after, false))
17191 goto nla_put_failure;
17192 nla_nest_end(msg, nl_freq);
17193
17194 genlmsg_end(msg, hdr);
17195
17196 rcu_read_lock();
17197 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
17198 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
17199 rcu_read_unlock();
17200
17201 return;
17202
17203nla_put_failure:
17204 nlmsg_free(msg);
17205}
17206
17207static void nl80211_send_remain_on_chan_event(
17208 int cmd, struct cfg80211_registered_device *rdev,
17209 struct wireless_dev *wdev, u64 cookie,
17210 struct ieee80211_channel *chan,
17211 unsigned int duration, gfp_t gfp)
17212{
17213 struct sk_buff *msg;
17214 void *hdr;
17215
17216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17217 if (!msg)
17218 return;
17219
17220 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
17221 if (!hdr) {
17222 nlmsg_free(msg);
17223 return;
17224 }
17225
17226 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17227 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
17228 wdev->netdev->ifindex)) ||
17229 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
17230 NL80211_ATTR_PAD) ||
17231 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
17232 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
17233 NL80211_CHAN_NO_HT) ||
17234 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
17235 NL80211_ATTR_PAD))
17236 goto nla_put_failure;
17237
17238 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
17239 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
17240 goto nla_put_failure;
17241
17242 genlmsg_end(msg, hdr);
17243
17244 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17245 NL80211_MCGRP_MLME, gfp);
17246 return;
17247
17248 nla_put_failure:
17249 nlmsg_free(msg);
17250}
17251
17252void cfg80211_assoc_comeback(struct net_device *netdev,
17253 struct cfg80211_bss *bss, u32 timeout)
17254{
17255 struct wireless_dev *wdev = netdev->ieee80211_ptr;
17256 struct wiphy *wiphy = wdev->wiphy;
17257 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17258 struct sk_buff *msg;
17259 void *hdr;
17260
17261 trace_cfg80211_assoc_comeback(wdev, bss->bssid, timeout);
17262
17263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
17264 if (!msg)
17265 return;
17266
17267 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ASSOC_COMEBACK);
17268 if (!hdr) {
17269 nlmsg_free(msg);
17270 return;
17271 }
17272
17273 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17274 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
17275 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bss->bssid) ||
17276 nla_put_u32(msg, NL80211_ATTR_TIMEOUT, timeout))
17277 goto nla_put_failure;
17278
17279 genlmsg_end(msg, hdr);
17280
17281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17282 NL80211_MCGRP_MLME, GFP_KERNEL);
17283 return;
17284
17285 nla_put_failure:
17286 nlmsg_free(msg);
17287}
17288EXPORT_SYMBOL(cfg80211_assoc_comeback);
17289
17290void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
17291 struct ieee80211_channel *chan,
17292 unsigned int duration, gfp_t gfp)
17293{
17294 struct wiphy *wiphy = wdev->wiphy;
17295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17296
17297 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
17298 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
17299 rdev, wdev, cookie, chan,
17300 duration, gfp);
17301}
17302EXPORT_SYMBOL(cfg80211_ready_on_channel);
17303
17304void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
17305 struct ieee80211_channel *chan,
17306 gfp_t gfp)
17307{
17308 struct wiphy *wiphy = wdev->wiphy;
17309 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17310
17311 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
17312 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
17313 rdev, wdev, cookie, chan, 0, gfp);
17314}
17315EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
17316
17317void cfg80211_tx_mgmt_expired(struct wireless_dev *wdev, u64 cookie,
17318 struct ieee80211_channel *chan,
17319 gfp_t gfp)
17320{
17321 struct wiphy *wiphy = wdev->wiphy;
17322 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17323
17324 trace_cfg80211_tx_mgmt_expired(wdev, cookie, chan);
17325 nl80211_send_remain_on_chan_event(NL80211_CMD_FRAME_WAIT_CANCEL,
17326 rdev, wdev, cookie, chan, 0, gfp);
17327}
17328EXPORT_SYMBOL(cfg80211_tx_mgmt_expired);
17329
17330void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
17331 struct station_info *sinfo, gfp_t gfp)
17332{
17333 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
17334 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17335 struct sk_buff *msg;
17336
17337 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
17338
17339 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17340 if (!msg)
17341 return;
17342
17343 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
17344 rdev, dev, mac_addr, sinfo) < 0) {
17345 nlmsg_free(msg);
17346 return;
17347 }
17348
17349 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17350 NL80211_MCGRP_MLME, gfp);
17351}
17352EXPORT_SYMBOL(cfg80211_new_sta);
17353
17354void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
17355 struct station_info *sinfo, gfp_t gfp)
17356{
17357 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
17358 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17359 struct sk_buff *msg;
17360 struct station_info empty_sinfo = {};
17361
17362 if (!sinfo)
17363 sinfo = &empty_sinfo;
17364
17365 trace_cfg80211_del_sta(dev, mac_addr);
17366
17367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17368 if (!msg) {
17369 cfg80211_sinfo_release_content(sinfo);
17370 return;
17371 }
17372
17373 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
17374 rdev, dev, mac_addr, sinfo) < 0) {
17375 nlmsg_free(msg);
17376 return;
17377 }
17378
17379 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17380 NL80211_MCGRP_MLME, gfp);
17381}
17382EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
17383
17384void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
17385 enum nl80211_connect_failed_reason reason,
17386 gfp_t gfp)
17387{
17388 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
17389 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17390 struct sk_buff *msg;
17391 void *hdr;
17392
17393 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
17394 if (!msg)
17395 return;
17396
17397 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
17398 if (!hdr) {
17399 nlmsg_free(msg);
17400 return;
17401 }
17402
17403 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
17404 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
17405 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
17406 goto nla_put_failure;
17407
17408 genlmsg_end(msg, hdr);
17409
17410 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17411 NL80211_MCGRP_MLME, gfp);
17412 return;
17413
17414 nla_put_failure:
17415 nlmsg_free(msg);
17416}
17417EXPORT_SYMBOL(cfg80211_conn_failed);
17418
17419static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
17420 const u8 *addr, gfp_t gfp)
17421{
17422 struct wireless_dev *wdev = dev->ieee80211_ptr;
17423 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
17424 struct sk_buff *msg;
17425 void *hdr;
17426 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
17427
17428 if (!nlportid)
17429 return false;
17430
17431 msg = nlmsg_new(100, gfp);
17432 if (!msg)
17433 return true;
17434
17435 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
17436 if (!hdr) {
17437 nlmsg_free(msg);
17438 return true;
17439 }
17440
17441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17442 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
17443 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
17444 goto nla_put_failure;
17445
17446 genlmsg_end(msg, hdr);
17447 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
17448 return true;
17449
17450 nla_put_failure:
17451 nlmsg_free(msg);
17452 return true;
17453}
17454
17455bool cfg80211_rx_spurious_frame(struct net_device *dev,
17456 const u8 *addr, gfp_t gfp)
17457{
17458 struct wireless_dev *wdev = dev->ieee80211_ptr;
17459 bool ret;
17460
17461 trace_cfg80211_rx_spurious_frame(dev, addr);
17462
17463 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
17464 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
17465 trace_cfg80211_return_bool(false);
17466 return false;
17467 }
17468 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
17469 addr, gfp);
17470 trace_cfg80211_return_bool(ret);
17471 return ret;
17472}
17473EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
17474
17475bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
17476 const u8 *addr, gfp_t gfp)
17477{
17478 struct wireless_dev *wdev = dev->ieee80211_ptr;
17479 bool ret;
17480
17481 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
17482
17483 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
17484 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
17485 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
17486 trace_cfg80211_return_bool(false);
17487 return false;
17488 }
17489 ret = __nl80211_unexpected_frame(dev,
17490 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
17491 addr, gfp);
17492 trace_cfg80211_return_bool(ret);
17493 return ret;
17494}
17495EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
17496
17497int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
17498 struct wireless_dev *wdev, u32 nlportid,
17499 int freq, int sig_dbm,
17500 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
17501{
17502 struct net_device *netdev = wdev->netdev;
17503 struct sk_buff *msg;
17504 void *hdr;
17505
17506 msg = nlmsg_new(100 + len, gfp);
17507 if (!msg)
17508 return -ENOMEM;
17509
17510 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
17511 if (!hdr) {
17512 nlmsg_free(msg);
17513 return -ENOMEM;
17514 }
17515
17516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17517 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
17518 netdev->ifindex)) ||
17519 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
17520 NL80211_ATTR_PAD) ||
17521 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, KHZ_TO_MHZ(freq)) ||
17522 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET, freq % 1000) ||
17523 (sig_dbm &&
17524 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
17525 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
17526 (flags &&
17527 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
17528 goto nla_put_failure;
17529
17530 genlmsg_end(msg, hdr);
17531
17532 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
17533
17534 nla_put_failure:
17535 nlmsg_free(msg);
17536 return -ENOBUFS;
17537}
17538
17539static void nl80211_frame_tx_status(struct wireless_dev *wdev, u64 cookie,
17540 const u8 *buf, size_t len, bool ack,
17541 gfp_t gfp, enum nl80211_commands command)
17542{
17543 struct wiphy *wiphy = wdev->wiphy;
17544 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17545 struct net_device *netdev = wdev->netdev;
17546 struct sk_buff *msg;
17547 void *hdr;
17548
17549 if (command == NL80211_CMD_FRAME_TX_STATUS)
17550 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
17551 else
17552 trace_cfg80211_control_port_tx_status(wdev, cookie, ack);
17553
17554 msg = nlmsg_new(100 + len, gfp);
17555 if (!msg)
17556 return;
17557
17558 hdr = nl80211hdr_put(msg, 0, 0, 0, command);
17559 if (!hdr) {
17560 nlmsg_free(msg);
17561 return;
17562 }
17563
17564 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17565 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
17566 netdev->ifindex)) ||
17567 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
17568 NL80211_ATTR_PAD) ||
17569 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
17570 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
17571 NL80211_ATTR_PAD) ||
17572 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
17573 goto nla_put_failure;
17574
17575 genlmsg_end(msg, hdr);
17576
17577 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17578 NL80211_MCGRP_MLME, gfp);
17579 return;
17580
17581nla_put_failure:
17582 nlmsg_free(msg);
17583}
17584
17585void cfg80211_control_port_tx_status(struct wireless_dev *wdev, u64 cookie,
17586 const u8 *buf, size_t len, bool ack,
17587 gfp_t gfp)
17588{
17589 nl80211_frame_tx_status(wdev, cookie, buf, len, ack, gfp,
17590 NL80211_CMD_CONTROL_PORT_FRAME_TX_STATUS);
17591}
17592EXPORT_SYMBOL(cfg80211_control_port_tx_status);
17593
17594void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
17595 const u8 *buf, size_t len, bool ack, gfp_t gfp)
17596{
17597 nl80211_frame_tx_status(wdev, cookie, buf, len, ack, gfp,
17598 NL80211_CMD_FRAME_TX_STATUS);
17599}
17600EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
17601
17602static int __nl80211_rx_control_port(struct net_device *dev,
17603 struct sk_buff *skb,
17604 bool unencrypted, gfp_t gfp)
17605{
17606 struct wireless_dev *wdev = dev->ieee80211_ptr;
17607 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
17608 struct ethhdr *ehdr = eth_hdr(skb);
17609 const u8 *addr = ehdr->h_source;
17610 u16 proto = be16_to_cpu(skb->protocol);
17611 struct sk_buff *msg;
17612 void *hdr;
17613 struct nlattr *frame;
17614
17615 u32 nlportid = READ_ONCE(wdev->conn_owner_nlportid);
17616
17617 if (!nlportid)
17618 return -ENOENT;
17619
17620 msg = nlmsg_new(100 + skb->len, gfp);
17621 if (!msg)
17622 return -ENOMEM;
17623
17624 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONTROL_PORT_FRAME);
17625 if (!hdr) {
17626 nlmsg_free(msg);
17627 return -ENOBUFS;
17628 }
17629
17630 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17631 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
17632 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
17633 NL80211_ATTR_PAD) ||
17634 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
17635 nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) ||
17636 (unencrypted && nla_put_flag(msg,
17637 NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
17638 goto nla_put_failure;
17639
17640 frame = nla_reserve(msg, NL80211_ATTR_FRAME, skb->len);
17641 if (!frame)
17642 goto nla_put_failure;
17643
17644 skb_copy_bits(skb, 0, nla_data(frame), skb->len);
17645 genlmsg_end(msg, hdr);
17646
17647 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
17648
17649 nla_put_failure:
17650 nlmsg_free(msg);
17651 return -ENOBUFS;
17652}
17653
17654bool cfg80211_rx_control_port(struct net_device *dev,
17655 struct sk_buff *skb, bool unencrypted)
17656{
17657 int ret;
17658
17659 trace_cfg80211_rx_control_port(dev, skb, unencrypted);
17660 ret = __nl80211_rx_control_port(dev, skb, unencrypted, GFP_ATOMIC);
17661 trace_cfg80211_return_bool(ret == 0);
17662 return ret == 0;
17663}
17664EXPORT_SYMBOL(cfg80211_rx_control_port);
17665
17666static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
17667 const char *mac, gfp_t gfp)
17668{
17669 struct wireless_dev *wdev = dev->ieee80211_ptr;
17670 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
17671 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17672 void **cb;
17673
17674 if (!msg)
17675 return NULL;
17676
17677 cb = (void **)msg->cb;
17678
17679 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
17680 if (!cb[0]) {
17681 nlmsg_free(msg);
17682 return NULL;
17683 }
17684
17685 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17686 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
17687 goto nla_put_failure;
17688
17689 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
17690 goto nla_put_failure;
17691
17692 cb[1] = nla_nest_start_noflag(msg, NL80211_ATTR_CQM);
17693 if (!cb[1])
17694 goto nla_put_failure;
17695
17696 cb[2] = rdev;
17697
17698 return msg;
17699 nla_put_failure:
17700 nlmsg_free(msg);
17701 return NULL;
17702}
17703
17704static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
17705{
17706 void **cb = (void **)msg->cb;
17707 struct cfg80211_registered_device *rdev = cb[2];
17708
17709 nla_nest_end(msg, cb[1]);
17710 genlmsg_end(msg, cb[0]);
17711
17712 memset(msg->cb, 0, sizeof(msg->cb));
17713
17714 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17715 NL80211_MCGRP_MLME, gfp);
17716}
17717
17718void cfg80211_cqm_rssi_notify(struct net_device *dev,
17719 enum nl80211_cqm_rssi_threshold_event rssi_event,
17720 s32 rssi_level, gfp_t gfp)
17721{
17722 struct sk_buff *msg;
17723 struct wireless_dev *wdev = dev->ieee80211_ptr;
17724 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
17725
17726 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
17727
17728 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
17729 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
17730 return;
17731
17732 if (wdev->cqm_config) {
17733 wdev->cqm_config->last_rssi_event_value = rssi_level;
17734
17735 cfg80211_cqm_rssi_update(rdev, dev);
17736
17737 if (rssi_level == 0)
17738 rssi_level = wdev->cqm_config->last_rssi_event_value;
17739 }
17740
17741 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
17742 if (!msg)
17743 return;
17744
17745 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
17746 rssi_event))
17747 goto nla_put_failure;
17748
17749 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
17750 rssi_level))
17751 goto nla_put_failure;
17752
17753 cfg80211_send_cqm(msg, gfp);
17754
17755 return;
17756
17757 nla_put_failure:
17758 nlmsg_free(msg);
17759}
17760EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
17761
17762void cfg80211_cqm_txe_notify(struct net_device *dev,
17763 const u8 *peer, u32 num_packets,
17764 u32 rate, u32 intvl, gfp_t gfp)
17765{
17766 struct sk_buff *msg;
17767
17768 msg = cfg80211_prepare_cqm(dev, peer, gfp);
17769 if (!msg)
17770 return;
17771
17772 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
17773 goto nla_put_failure;
17774
17775 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
17776 goto nla_put_failure;
17777
17778 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
17779 goto nla_put_failure;
17780
17781 cfg80211_send_cqm(msg, gfp);
17782 return;
17783
17784 nla_put_failure:
17785 nlmsg_free(msg);
17786}
17787EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
17788
17789void cfg80211_cqm_pktloss_notify(struct net_device *dev,
17790 const u8 *peer, u32 num_packets, gfp_t gfp)
17791{
17792 struct sk_buff *msg;
17793
17794 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
17795
17796 msg = cfg80211_prepare_cqm(dev, peer, gfp);
17797 if (!msg)
17798 return;
17799
17800 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
17801 goto nla_put_failure;
17802
17803 cfg80211_send_cqm(msg, gfp);
17804 return;
17805
17806 nla_put_failure:
17807 nlmsg_free(msg);
17808}
17809EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
17810
17811void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
17812{
17813 struct sk_buff *msg;
17814
17815 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
17816 if (!msg)
17817 return;
17818
17819 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
17820 goto nla_put_failure;
17821
17822 cfg80211_send_cqm(msg, gfp);
17823 return;
17824
17825 nla_put_failure:
17826 nlmsg_free(msg);
17827}
17828EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
17829
17830static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
17831 struct net_device *netdev, const u8 *bssid,
17832 const u8 *replay_ctr, gfp_t gfp)
17833{
17834 struct sk_buff *msg;
17835 struct nlattr *rekey_attr;
17836 void *hdr;
17837
17838 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17839 if (!msg)
17840 return;
17841
17842 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
17843 if (!hdr) {
17844 nlmsg_free(msg);
17845 return;
17846 }
17847
17848 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17849 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
17850 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
17851 goto nla_put_failure;
17852
17853 rekey_attr = nla_nest_start_noflag(msg, NL80211_ATTR_REKEY_DATA);
17854 if (!rekey_attr)
17855 goto nla_put_failure;
17856
17857 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
17858 NL80211_REPLAY_CTR_LEN, replay_ctr))
17859 goto nla_put_failure;
17860
17861 nla_nest_end(msg, rekey_attr);
17862
17863 genlmsg_end(msg, hdr);
17864
17865 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17866 NL80211_MCGRP_MLME, gfp);
17867 return;
17868
17869 nla_put_failure:
17870 nlmsg_free(msg);
17871}
17872
17873void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
17874 const u8 *replay_ctr, gfp_t gfp)
17875{
17876 struct wireless_dev *wdev = dev->ieee80211_ptr;
17877 struct wiphy *wiphy = wdev->wiphy;
17878 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17879
17880 trace_cfg80211_gtk_rekey_notify(dev, bssid);
17881 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
17882}
17883EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
17884
17885static void
17886nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
17887 struct net_device *netdev, int index,
17888 const u8 *bssid, bool preauth, gfp_t gfp)
17889{
17890 struct sk_buff *msg;
17891 struct nlattr *attr;
17892 void *hdr;
17893
17894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17895 if (!msg)
17896 return;
17897
17898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
17899 if (!hdr) {
17900 nlmsg_free(msg);
17901 return;
17902 }
17903
17904 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
17905 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
17906 goto nla_put_failure;
17907
17908 attr = nla_nest_start_noflag(msg, NL80211_ATTR_PMKSA_CANDIDATE);
17909 if (!attr)
17910 goto nla_put_failure;
17911
17912 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
17913 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
17914 (preauth &&
17915 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
17916 goto nla_put_failure;
17917
17918 nla_nest_end(msg, attr);
17919
17920 genlmsg_end(msg, hdr);
17921
17922 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17923 NL80211_MCGRP_MLME, gfp);
17924 return;
17925
17926 nla_put_failure:
17927 nlmsg_free(msg);
17928}
17929
17930void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
17931 const u8 *bssid, bool preauth, gfp_t gfp)
17932{
17933 struct wireless_dev *wdev = dev->ieee80211_ptr;
17934 struct wiphy *wiphy = wdev->wiphy;
17935 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17936
17937 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
17938 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
17939}
17940EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
17941
17942static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
17943 struct net_device *netdev,
17944 struct cfg80211_chan_def *chandef,
17945 gfp_t gfp,
17946 enum nl80211_commands notif,
17947 u8 count, bool quiet)
17948{
17949 struct sk_buff *msg;
17950 void *hdr;
17951
17952 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
17953 if (!msg)
17954 return;
17955
17956 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
17957 if (!hdr) {
17958 nlmsg_free(msg);
17959 return;
17960 }
17961
17962 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
17963 goto nla_put_failure;
17964
17965 if (nl80211_send_chandef(msg, chandef))
17966 goto nla_put_failure;
17967
17968 if (notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) {
17969 if (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))
17970 goto nla_put_failure;
17971 if (quiet &&
17972 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX))
17973 goto nla_put_failure;
17974 }
17975
17976 genlmsg_end(msg, hdr);
17977
17978 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
17979 NL80211_MCGRP_MLME, gfp);
17980 return;
17981
17982 nla_put_failure:
17983 nlmsg_free(msg);
17984}
17985
17986void cfg80211_ch_switch_notify(struct net_device *dev,
17987 struct cfg80211_chan_def *chandef)
17988{
17989 struct wireless_dev *wdev = dev->ieee80211_ptr;
17990 struct wiphy *wiphy = wdev->wiphy;
17991 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
17992
17993 ASSERT_WDEV_LOCK(wdev);
17994
17995 trace_cfg80211_ch_switch_notify(dev, chandef);
17996
17997 wdev->chandef = *chandef;
17998 wdev->preset_chandef = *chandef;
17999
18000 if ((wdev->iftype == NL80211_IFTYPE_STATION ||
18001 wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
18002 !WARN_ON(!wdev->current_bss))
18003 cfg80211_update_assoc_bss_entry(wdev, chandef->chan);
18004
18005 cfg80211_sched_dfs_chan_update(rdev);
18006
18007 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
18008 NL80211_CMD_CH_SWITCH_NOTIFY, 0, false);
18009}
18010EXPORT_SYMBOL(cfg80211_ch_switch_notify);
18011
18012void cfg80211_ch_switch_started_notify(struct net_device *dev,
18013 struct cfg80211_chan_def *chandef,
18014 u8 count, bool quiet)
18015{
18016 struct wireless_dev *wdev = dev->ieee80211_ptr;
18017 struct wiphy *wiphy = wdev->wiphy;
18018 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18019
18020 trace_cfg80211_ch_switch_started_notify(dev, chandef);
18021
18022 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
18023 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
18024 count, quiet);
18025}
18026EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
18027
18028int cfg80211_bss_color_notify(struct net_device *dev, gfp_t gfp,
18029 enum nl80211_commands cmd, u8 count,
18030 u64 color_bitmap)
18031{
18032 struct wireless_dev *wdev = dev->ieee80211_ptr;
18033 struct wiphy *wiphy = wdev->wiphy;
18034 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18035 struct sk_buff *msg;
18036 void *hdr;
18037
18038 ASSERT_WDEV_LOCK(wdev);
18039
18040 trace_cfg80211_bss_color_notify(dev, cmd, count, color_bitmap);
18041
18042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18043 if (!msg)
18044 return -ENOMEM;
18045
18046 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
18047 if (!hdr)
18048 goto nla_put_failure;
18049
18050 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
18051 goto nla_put_failure;
18052
18053 if (cmd == NL80211_CMD_COLOR_CHANGE_STARTED &&
18054 nla_put_u32(msg, NL80211_ATTR_COLOR_CHANGE_COUNT, count))
18055 goto nla_put_failure;
18056
18057 if (cmd == NL80211_CMD_OBSS_COLOR_COLLISION &&
18058 nla_put_u64_64bit(msg, NL80211_ATTR_OBSS_COLOR_BITMAP,
18059 color_bitmap, NL80211_ATTR_PAD))
18060 goto nla_put_failure;
18061
18062 genlmsg_end(msg, hdr);
18063
18064 return genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
18065 msg, 0, NL80211_MCGRP_MLME, gfp);
18066
18067nla_put_failure:
18068 nlmsg_free(msg);
18069 return -EINVAL;
18070}
18071EXPORT_SYMBOL(cfg80211_bss_color_notify);
18072
18073void
18074nl80211_radar_notify(struct cfg80211_registered_device *rdev,
18075 const struct cfg80211_chan_def *chandef,
18076 enum nl80211_radar_event event,
18077 struct net_device *netdev, gfp_t gfp)
18078{
18079 struct sk_buff *msg;
18080 void *hdr;
18081
18082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18083 if (!msg)
18084 return;
18085
18086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
18087 if (!hdr) {
18088 nlmsg_free(msg);
18089 return;
18090 }
18091
18092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
18093 goto nla_put_failure;
18094
18095
18096 if (netdev) {
18097 struct wireless_dev *wdev = netdev->ieee80211_ptr;
18098
18099 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
18100 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
18101 NL80211_ATTR_PAD))
18102 goto nla_put_failure;
18103 }
18104
18105 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
18106 goto nla_put_failure;
18107
18108 if (nl80211_send_chandef(msg, chandef))
18109 goto nla_put_failure;
18110
18111 genlmsg_end(msg, hdr);
18112
18113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18114 NL80211_MCGRP_MLME, gfp);
18115 return;
18116
18117 nla_put_failure:
18118 nlmsg_free(msg);
18119}
18120
18121void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
18122 struct sta_opmode_info *sta_opmode,
18123 gfp_t gfp)
18124{
18125 struct sk_buff *msg;
18126 struct wireless_dev *wdev = dev->ieee80211_ptr;
18127 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
18128 void *hdr;
18129
18130 if (WARN_ON(!mac))
18131 return;
18132
18133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18134 if (!msg)
18135 return;
18136
18137 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED);
18138 if (!hdr) {
18139 nlmsg_free(msg);
18140 return;
18141 }
18142
18143 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
18144 goto nla_put_failure;
18145
18146 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
18147 goto nla_put_failure;
18148
18149 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
18150 goto nla_put_failure;
18151
18152 if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) &&
18153 nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode))
18154 goto nla_put_failure;
18155
18156 if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) &&
18157 nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw))
18158 goto nla_put_failure;
18159
18160 if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) &&
18161 nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss))
18162 goto nla_put_failure;
18163
18164 genlmsg_end(msg, hdr);
18165
18166 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18167 NL80211_MCGRP_MLME, gfp);
18168
18169 return;
18170
18171nla_put_failure:
18172 nlmsg_free(msg);
18173}
18174EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify);
18175
18176void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
18177 u64 cookie, bool acked, s32 ack_signal,
18178 bool is_valid_ack_signal, gfp_t gfp)
18179{
18180 struct wireless_dev *wdev = dev->ieee80211_ptr;
18181 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
18182 struct sk_buff *msg;
18183 void *hdr;
18184
18185 trace_cfg80211_probe_status(dev, addr, cookie, acked);
18186
18187 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18188
18189 if (!msg)
18190 return;
18191
18192 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
18193 if (!hdr) {
18194 nlmsg_free(msg);
18195 return;
18196 }
18197
18198 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18199 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
18200 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
18201 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
18202 NL80211_ATTR_PAD) ||
18203 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) ||
18204 (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL,
18205 ack_signal)))
18206 goto nla_put_failure;
18207
18208 genlmsg_end(msg, hdr);
18209
18210 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18211 NL80211_MCGRP_MLME, gfp);
18212 return;
18213
18214 nla_put_failure:
18215 nlmsg_free(msg);
18216}
18217EXPORT_SYMBOL(cfg80211_probe_status);
18218
18219void cfg80211_report_obss_beacon_khz(struct wiphy *wiphy, const u8 *frame,
18220 size_t len, int freq, int sig_dbm)
18221{
18222 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18223 struct sk_buff *msg;
18224 void *hdr;
18225 struct cfg80211_beacon_registration *reg;
18226
18227 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
18228
18229 spin_lock_bh(&rdev->beacon_registrations_lock);
18230 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
18231 msg = nlmsg_new(len + 100, GFP_ATOMIC);
18232 if (!msg) {
18233 spin_unlock_bh(&rdev->beacon_registrations_lock);
18234 return;
18235 }
18236
18237 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
18238 if (!hdr)
18239 goto nla_put_failure;
18240
18241 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18242 (freq &&
18243 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
18244 KHZ_TO_MHZ(freq)) ||
18245 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_OFFSET,
18246 freq % 1000))) ||
18247 (sig_dbm &&
18248 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
18249 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
18250 goto nla_put_failure;
18251
18252 genlmsg_end(msg, hdr);
18253
18254 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
18255 }
18256 spin_unlock_bh(&rdev->beacon_registrations_lock);
18257 return;
18258
18259 nla_put_failure:
18260 spin_unlock_bh(&rdev->beacon_registrations_lock);
18261 nlmsg_free(msg);
18262}
18263EXPORT_SYMBOL(cfg80211_report_obss_beacon_khz);
18264
18265#ifdef CONFIG_PM
18266static int cfg80211_net_detect_results(struct sk_buff *msg,
18267 struct cfg80211_wowlan_wakeup *wakeup)
18268{
18269 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
18270 struct nlattr *nl_results, *nl_match, *nl_freqs;
18271 int i, j;
18272
18273 nl_results = nla_nest_start_noflag(msg,
18274 NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
18275 if (!nl_results)
18276 return -EMSGSIZE;
18277
18278 for (i = 0; i < nd->n_matches; i++) {
18279 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
18280
18281 nl_match = nla_nest_start_noflag(msg, i);
18282 if (!nl_match)
18283 break;
18284
18285
18286
18287
18288
18289
18290
18291
18292 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
18293 match->ssid.ssid)) {
18294 nla_nest_cancel(msg, nl_match);
18295 goto out;
18296 }
18297
18298 if (match->n_channels) {
18299 nl_freqs = nla_nest_start_noflag(msg,
18300 NL80211_ATTR_SCAN_FREQUENCIES);
18301 if (!nl_freqs) {
18302 nla_nest_cancel(msg, nl_match);
18303 goto out;
18304 }
18305
18306 for (j = 0; j < match->n_channels; j++) {
18307 if (nla_put_u32(msg, j, match->channels[j])) {
18308 nla_nest_cancel(msg, nl_freqs);
18309 nla_nest_cancel(msg, nl_match);
18310 goto out;
18311 }
18312 }
18313
18314 nla_nest_end(msg, nl_freqs);
18315 }
18316
18317 nla_nest_end(msg, nl_match);
18318 }
18319
18320out:
18321 nla_nest_end(msg, nl_results);
18322 return 0;
18323}
18324
18325void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
18326 struct cfg80211_wowlan_wakeup *wakeup,
18327 gfp_t gfp)
18328{
18329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
18330 struct sk_buff *msg;
18331 void *hdr;
18332 int size = 200;
18333
18334 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
18335
18336 if (wakeup)
18337 size += wakeup->packet_present_len;
18338
18339 msg = nlmsg_new(size, gfp);
18340 if (!msg)
18341 return;
18342
18343 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
18344 if (!hdr)
18345 goto free_msg;
18346
18347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18348 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
18349 NL80211_ATTR_PAD))
18350 goto free_msg;
18351
18352 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
18353 wdev->netdev->ifindex))
18354 goto free_msg;
18355
18356 if (wakeup) {
18357 struct nlattr *reasons;
18358
18359 reasons = nla_nest_start_noflag(msg,
18360 NL80211_ATTR_WOWLAN_TRIGGERS);
18361 if (!reasons)
18362 goto free_msg;
18363
18364 if (wakeup->disconnect &&
18365 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
18366 goto free_msg;
18367 if (wakeup->magic_pkt &&
18368 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
18369 goto free_msg;
18370 if (wakeup->gtk_rekey_failure &&
18371 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
18372 goto free_msg;
18373 if (wakeup->eap_identity_req &&
18374 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
18375 goto free_msg;
18376 if (wakeup->four_way_handshake &&
18377 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
18378 goto free_msg;
18379 if (wakeup->rfkill_release &&
18380 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
18381 goto free_msg;
18382
18383 if (wakeup->pattern_idx >= 0 &&
18384 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
18385 wakeup->pattern_idx))
18386 goto free_msg;
18387
18388 if (wakeup->tcp_match &&
18389 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
18390 goto free_msg;
18391
18392 if (wakeup->tcp_connlost &&
18393 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
18394 goto free_msg;
18395
18396 if (wakeup->tcp_nomoretokens &&
18397 nla_put_flag(msg,
18398 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
18399 goto free_msg;
18400
18401 if (wakeup->packet) {
18402 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
18403 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
18404
18405 if (!wakeup->packet_80211) {
18406 pkt_attr =
18407 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
18408 len_attr =
18409 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
18410 }
18411
18412 if (wakeup->packet_len &&
18413 nla_put_u32(msg, len_attr, wakeup->packet_len))
18414 goto free_msg;
18415
18416 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
18417 wakeup->packet))
18418 goto free_msg;
18419 }
18420
18421 if (wakeup->net_detect &&
18422 cfg80211_net_detect_results(msg, wakeup))
18423 goto free_msg;
18424
18425 nla_nest_end(msg, reasons);
18426 }
18427
18428 genlmsg_end(msg, hdr);
18429
18430 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18431 NL80211_MCGRP_MLME, gfp);
18432 return;
18433
18434 free_msg:
18435 nlmsg_free(msg);
18436}
18437EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
18438#endif
18439
18440void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
18441 enum nl80211_tdls_operation oper,
18442 u16 reason_code, gfp_t gfp)
18443{
18444 struct wireless_dev *wdev = dev->ieee80211_ptr;
18445 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
18446 struct sk_buff *msg;
18447 void *hdr;
18448
18449 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
18450 reason_code);
18451
18452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18453 if (!msg)
18454 return;
18455
18456 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
18457 if (!hdr) {
18458 nlmsg_free(msg);
18459 return;
18460 }
18461
18462 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18463 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
18464 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
18465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
18466 (reason_code > 0 &&
18467 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
18468 goto nla_put_failure;
18469
18470 genlmsg_end(msg, hdr);
18471
18472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18473 NL80211_MCGRP_MLME, gfp);
18474 return;
18475
18476 nla_put_failure:
18477 nlmsg_free(msg);
18478}
18479EXPORT_SYMBOL(cfg80211_tdls_oper_request);
18480
18481static int nl80211_netlink_notify(struct notifier_block * nb,
18482 unsigned long state,
18483 void *_notify)
18484{
18485 struct netlink_notify *notify = _notify;
18486 struct cfg80211_registered_device *rdev;
18487 struct wireless_dev *wdev;
18488 struct cfg80211_beacon_registration *reg, *tmp;
18489
18490 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
18491 return NOTIFY_DONE;
18492
18493 rcu_read_lock();
18494
18495 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
18496 struct cfg80211_sched_scan_request *sched_scan_req;
18497
18498 list_for_each_entry_rcu(sched_scan_req,
18499 &rdev->sched_scan_req_list,
18500 list) {
18501 if (sched_scan_req->owner_nlportid == notify->portid) {
18502 sched_scan_req->nl_owner_dead = true;
18503 schedule_work(&rdev->sched_scan_stop_wk);
18504 }
18505 }
18506
18507 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
18508 cfg80211_mlme_unregister_socket(wdev, notify->portid);
18509
18510 if (wdev->owner_nlportid == notify->portid) {
18511 wdev->nl_owner_dead = true;
18512 schedule_work(&rdev->destroy_work);
18513 } else if (wdev->conn_owner_nlportid == notify->portid) {
18514 schedule_work(&wdev->disconnect_wk);
18515 }
18516
18517 cfg80211_release_pmsr(wdev, notify->portid);
18518 }
18519
18520 spin_lock_bh(&rdev->beacon_registrations_lock);
18521 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
18522 list) {
18523 if (reg->nlportid == notify->portid) {
18524 list_del(®->list);
18525 kfree(reg);
18526 break;
18527 }
18528 }
18529 spin_unlock_bh(&rdev->beacon_registrations_lock);
18530 }
18531
18532 rcu_read_unlock();
18533
18534
18535
18536
18537
18538 regulatory_netlink_notify(notify->portid);
18539 return NOTIFY_OK;
18540}
18541
18542static struct notifier_block nl80211_netlink_notifier = {
18543 .notifier_call = nl80211_netlink_notify,
18544};
18545
18546void cfg80211_ft_event(struct net_device *netdev,
18547 struct cfg80211_ft_event_params *ft_event)
18548{
18549 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
18550 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18551 struct sk_buff *msg;
18552 void *hdr;
18553
18554 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
18555
18556 if (!ft_event->target_ap)
18557 return;
18558
18559 msg = nlmsg_new(100 + ft_event->ies_len + ft_event->ric_ies_len,
18560 GFP_KERNEL);
18561 if (!msg)
18562 return;
18563
18564 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
18565 if (!hdr)
18566 goto out;
18567
18568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
18570 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
18571 goto out;
18572
18573 if (ft_event->ies &&
18574 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
18575 goto out;
18576 if (ft_event->ric_ies &&
18577 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
18578 ft_event->ric_ies))
18579 goto out;
18580
18581 genlmsg_end(msg, hdr);
18582
18583 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18584 NL80211_MCGRP_MLME, GFP_KERNEL);
18585 return;
18586 out:
18587 nlmsg_free(msg);
18588}
18589EXPORT_SYMBOL(cfg80211_ft_event);
18590
18591void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
18592{
18593 struct cfg80211_registered_device *rdev;
18594 struct sk_buff *msg;
18595 void *hdr;
18596 u32 nlportid;
18597
18598 rdev = wiphy_to_rdev(wdev->wiphy);
18599 if (!rdev->crit_proto_nlportid)
18600 return;
18601
18602 nlportid = rdev->crit_proto_nlportid;
18603 rdev->crit_proto_nlportid = 0;
18604
18605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18606 if (!msg)
18607 return;
18608
18609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
18610 if (!hdr)
18611 goto nla_put_failure;
18612
18613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18614 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
18615 NL80211_ATTR_PAD))
18616 goto nla_put_failure;
18617
18618 genlmsg_end(msg, hdr);
18619
18620 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
18621 return;
18622
18623 nla_put_failure:
18624 nlmsg_free(msg);
18625}
18626EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
18627
18628void nl80211_send_ap_stopped(struct wireless_dev *wdev)
18629{
18630 struct wiphy *wiphy = wdev->wiphy;
18631 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18632 struct sk_buff *msg;
18633 void *hdr;
18634
18635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
18636 if (!msg)
18637 return;
18638
18639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
18640 if (!hdr)
18641 goto out;
18642
18643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18644 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
18645 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
18646 NL80211_ATTR_PAD))
18647 goto out;
18648
18649 genlmsg_end(msg, hdr);
18650
18651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
18652 NL80211_MCGRP_MLME, GFP_KERNEL);
18653 return;
18654 out:
18655 nlmsg_free(msg);
18656}
18657
18658int cfg80211_external_auth_request(struct net_device *dev,
18659 struct cfg80211_external_auth_params *params,
18660 gfp_t gfp)
18661{
18662 struct wireless_dev *wdev = dev->ieee80211_ptr;
18663 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
18664 struct sk_buff *msg;
18665 void *hdr;
18666
18667 if (!wdev->conn_owner_nlportid)
18668 return -EINVAL;
18669
18670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18671 if (!msg)
18672 return -ENOMEM;
18673
18674 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH);
18675 if (!hdr)
18676 goto nla_put_failure;
18677
18678 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18679 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
18680 nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) ||
18681 nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION,
18682 params->action) ||
18683 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) ||
18684 nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len,
18685 params->ssid.ssid))
18686 goto nla_put_failure;
18687
18688 genlmsg_end(msg, hdr);
18689 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
18690 wdev->conn_owner_nlportid);
18691 return 0;
18692
18693 nla_put_failure:
18694 nlmsg_free(msg);
18695 return -ENOBUFS;
18696}
18697EXPORT_SYMBOL(cfg80211_external_auth_request);
18698
18699void cfg80211_update_owe_info_event(struct net_device *netdev,
18700 struct cfg80211_update_owe_info *owe_info,
18701 gfp_t gfp)
18702{
18703 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
18704 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
18705 struct sk_buff *msg;
18706 void *hdr;
18707
18708 trace_cfg80211_update_owe_info_event(wiphy, netdev, owe_info);
18709
18710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
18711 if (!msg)
18712 return;
18713
18714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UPDATE_OWE_INFO);
18715 if (!hdr)
18716 goto nla_put_failure;
18717
18718 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
18719 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
18720 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, owe_info->peer))
18721 goto nla_put_failure;
18722
18723 if (!owe_info->ie_len ||
18724 nla_put(msg, NL80211_ATTR_IE, owe_info->ie_len, owe_info->ie))
18725 goto nla_put_failure;
18726
18727 genlmsg_end(msg, hdr);
18728
18729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
18730 NL80211_MCGRP_MLME, gfp);
18731 return;
18732
18733nla_put_failure:
18734 genlmsg_cancel(msg, hdr);
18735 nlmsg_free(msg);
18736}
18737EXPORT_SYMBOL(cfg80211_update_owe_info_event);
18738
18739
18740
18741int __init nl80211_init(void)
18742{
18743 int err;
18744
18745 err = genl_register_family(&nl80211_fam);
18746 if (err)
18747 return err;
18748
18749 err = netlink_register_notifier(&nl80211_netlink_notifier);
18750 if (err)
18751 goto err_out;
18752
18753 return 0;
18754 err_out:
18755 genl_unregister_family(&nl80211_fam);
18756 return err;
18757}
18758
18759void nl80211_exit(void)
18760{
18761 netlink_unregister_notifier(&nl80211_netlink_notifier);
18762 genl_unregister_family(&nl80211_fam);
18763}
18764
