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29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/netdevice.h>
32#include <linux/etherdevice.h>
33#include <linux/ethtool.h>
34#include <linux/workqueue.h>
35#include <linux/mutex.h>
36#include <linux/mii.h>
37#include <linux/usb.h>
38#include <linux/usb/cdc.h>
39#include <linux/ieee80211.h>
40#include <linux/if_arp.h>
41#include <linux/ctype.h>
42#include <linux/spinlock.h>
43#include <linux/slab.h>
44#include <net/cfg80211.h>
45#include <linux/usb/usbnet.h>
46#include <linux/usb/rndis_host.h>
47
48
49
50static char modparam_country[4] = "EU";
51module_param_string(country, modparam_country, 4, 0444);
52MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
53
54static int modparam_frameburst = 1;
55module_param_named(frameburst, modparam_frameburst, int, 0444);
56MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
57
58static int modparam_afterburner = 0;
59module_param_named(afterburner, modparam_afterburner, int, 0444);
60MODULE_PARM_DESC(afterburner,
61 "enable afterburner aka '125 High Speed Mode' (default: off)");
62
63static int modparam_power_save = 0;
64module_param_named(power_save, modparam_power_save, int, 0444);
65MODULE_PARM_DESC(power_save,
66 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
67
68static int modparam_power_output = 3;
69module_param_named(power_output, modparam_power_output, int, 0444);
70MODULE_PARM_DESC(power_output,
71 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
72
73static int modparam_roamtrigger = -70;
74module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
75MODULE_PARM_DESC(roamtrigger,
76 "set roaming dBm trigger: -80=optimize for distance, "
77 "-60=bandwidth (default: -70)");
78
79static int modparam_roamdelta = 1;
80module_param_named(roamdelta, modparam_roamdelta, int, 0444);
81MODULE_PARM_DESC(roamdelta,
82 "set roaming tendency: 0=aggressive, 1=moderate, "
83 "2=conservative (default: moderate)");
84
85static int modparam_workaround_interval;
86module_param_named(workaround_interval, modparam_workaround_interval,
87 int, 0444);
88MODULE_PARM_DESC(workaround_interval,
89 "set stall workaround interval in msecs (0=disabled) (default: 0)");
90
91
92#define WL_NOISE -96
93#define WL_SIGMAX -32
94
95
96
97
98
99
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101
102
103
104#define BCM4320_DEFAULT_TXPOWER_DBM_100 13
105#define BCM4320_DEFAULT_TXPOWER_DBM_75 12
106#define BCM4320_DEFAULT_TXPOWER_DBM_50 10
107#define BCM4320_DEFAULT_TXPOWER_DBM_25 7
108
109
110#define RNDIS_UNKNOWN 0
111#define RNDIS_BCM4320A 1
112#define RNDIS_BCM4320B 2
113
114
115
116
117
118#define NDIS_802_11_LENGTH_SSID 32
119#define NDIS_802_11_LENGTH_RATES 8
120#define NDIS_802_11_LENGTH_RATES_EX 16
121
122enum ndis_80211_net_type {
123 NDIS_80211_TYPE_FREQ_HOP,
124 NDIS_80211_TYPE_DIRECT_SEQ,
125 NDIS_80211_TYPE_OFDM_A,
126 NDIS_80211_TYPE_OFDM_G
127};
128
129enum ndis_80211_net_infra {
130 NDIS_80211_INFRA_ADHOC,
131 NDIS_80211_INFRA_INFRA,
132 NDIS_80211_INFRA_AUTO_UNKNOWN
133};
134
135enum ndis_80211_auth_mode {
136 NDIS_80211_AUTH_OPEN,
137 NDIS_80211_AUTH_SHARED,
138 NDIS_80211_AUTH_AUTO_SWITCH,
139 NDIS_80211_AUTH_WPA,
140 NDIS_80211_AUTH_WPA_PSK,
141 NDIS_80211_AUTH_WPA_NONE,
142 NDIS_80211_AUTH_WPA2,
143 NDIS_80211_AUTH_WPA2_PSK
144};
145
146enum ndis_80211_encr_status {
147 NDIS_80211_ENCR_WEP_ENABLED,
148 NDIS_80211_ENCR_DISABLED,
149 NDIS_80211_ENCR_WEP_KEY_ABSENT,
150 NDIS_80211_ENCR_NOT_SUPPORTED,
151 NDIS_80211_ENCR_TKIP_ENABLED,
152 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
153 NDIS_80211_ENCR_CCMP_ENABLED,
154 NDIS_80211_ENCR_CCMP_KEY_ABSENT
155};
156
157enum ndis_80211_priv_filter {
158 NDIS_80211_PRIV_ACCEPT_ALL,
159 NDIS_80211_PRIV_8021X_WEP
160};
161
162enum ndis_80211_status_type {
163 NDIS_80211_STATUSTYPE_AUTHENTICATION,
164 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
165 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
166 NDIS_80211_STATUSTYPE_RADIOSTATE,
167};
168
169enum ndis_80211_media_stream_mode {
170 NDIS_80211_MEDIA_STREAM_OFF,
171 NDIS_80211_MEDIA_STREAM_ON
172};
173
174enum ndis_80211_radio_status {
175 NDIS_80211_RADIO_STATUS_ON,
176 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
177 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
178};
179
180enum ndis_80211_addkey_bits {
181 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
182 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
183 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
184 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
185};
186
187enum ndis_80211_addwep_bits {
188 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
189 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
190};
191
192enum ndis_80211_power_mode {
193 NDIS_80211_POWER_MODE_CAM,
194 NDIS_80211_POWER_MODE_MAX_PSP,
195 NDIS_80211_POWER_MODE_FAST_PSP,
196};
197
198enum ndis_80211_pmkid_cand_list_flag_bits {
199 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
200};
201
202struct ndis_80211_auth_request {
203 __le32 length;
204 u8 bssid[6];
205 u8 padding[2];
206 __le32 flags;
207} __packed;
208
209struct ndis_80211_pmkid_candidate {
210 u8 bssid[6];
211 u8 padding[2];
212 __le32 flags;
213} __packed;
214
215struct ndis_80211_pmkid_cand_list {
216 __le32 version;
217 __le32 num_candidates;
218 struct ndis_80211_pmkid_candidate candidate_list[0];
219} __packed;
220
221struct ndis_80211_status_indication {
222 __le32 status_type;
223 union {
224 __le32 media_stream_mode;
225 __le32 radio_status;
226 struct ndis_80211_auth_request auth_request[0];
227 struct ndis_80211_pmkid_cand_list cand_list;
228 } u;
229} __packed;
230
231struct ndis_80211_ssid {
232 __le32 length;
233 u8 essid[NDIS_802_11_LENGTH_SSID];
234} __packed;
235
236struct ndis_80211_conf_freq_hop {
237 __le32 length;
238 __le32 hop_pattern;
239 __le32 hop_set;
240 __le32 dwell_time;
241} __packed;
242
243struct ndis_80211_conf {
244 __le32 length;
245 __le32 beacon_period;
246 __le32 atim_window;
247 __le32 ds_config;
248 struct ndis_80211_conf_freq_hop fh_config;
249} __packed;
250
251struct ndis_80211_bssid_ex {
252 __le32 length;
253 u8 mac[6];
254 u8 padding[2];
255 struct ndis_80211_ssid ssid;
256 __le32 privacy;
257 __le32 rssi;
258 __le32 net_type;
259 struct ndis_80211_conf config;
260 __le32 net_infra;
261 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
262 __le32 ie_length;
263 u8 ies[0];
264} __packed;
265
266struct ndis_80211_bssid_list_ex {
267 __le32 num_items;
268 struct ndis_80211_bssid_ex bssid[0];
269} __packed;
270
271struct ndis_80211_fixed_ies {
272 u8 timestamp[8];
273 __le16 beacon_interval;
274 __le16 capabilities;
275} __packed;
276
277struct ndis_80211_wep_key {
278 __le32 size;
279 __le32 index;
280 __le32 length;
281 u8 material[32];
282} __packed;
283
284struct ndis_80211_key {
285 __le32 size;
286 __le32 index;
287 __le32 length;
288 u8 bssid[6];
289 u8 padding[6];
290 u8 rsc[8];
291 u8 material[32];
292} __packed;
293
294struct ndis_80211_remove_key {
295 __le32 size;
296 __le32 index;
297 u8 bssid[6];
298 u8 padding[2];
299} __packed;
300
301struct ndis_config_param {
302 __le32 name_offs;
303 __le32 name_length;
304 __le32 type;
305 __le32 value_offs;
306 __le32 value_length;
307} __packed;
308
309struct ndis_80211_assoc_info {
310 __le32 length;
311 __le16 req_ies;
312 struct req_ie {
313 __le16 capa;
314 __le16 listen_interval;
315 u8 cur_ap_address[6];
316 } req_ie;
317 __le32 req_ie_length;
318 __le32 offset_req_ies;
319 __le16 resp_ies;
320 struct resp_ie {
321 __le16 capa;
322 __le16 status_code;
323 __le16 assoc_id;
324 } resp_ie;
325 __le32 resp_ie_length;
326 __le32 offset_resp_ies;
327} __packed;
328
329struct ndis_80211_auth_encr_pair {
330 __le32 auth_mode;
331 __le32 encr_mode;
332} __packed;
333
334struct ndis_80211_capability {
335 __le32 length;
336 __le32 version;
337 __le32 num_pmkids;
338 __le32 num_auth_encr_pair;
339 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
340} __packed;
341
342struct ndis_80211_bssid_info {
343 u8 bssid[6];
344 u8 pmkid[16];
345} __packed;
346
347struct ndis_80211_pmkid {
348 __le32 length;
349 __le32 bssid_info_count;
350 struct ndis_80211_bssid_info bssid_info[0];
351} __packed;
352
353
354
355
356#define CAP_MODE_80211A 1
357#define CAP_MODE_80211B 2
358#define CAP_MODE_80211G 4
359#define CAP_MODE_MASK 7
360
361#define WORK_LINK_UP (1<<0)
362#define WORK_LINK_DOWN (1<<1)
363#define WORK_SET_MULTICAST_LIST (1<<2)
364
365#define RNDIS_WLAN_ALG_NONE 0
366#define RNDIS_WLAN_ALG_WEP (1<<0)
367#define RNDIS_WLAN_ALG_TKIP (1<<1)
368#define RNDIS_WLAN_ALG_CCMP (1<<2)
369
370#define RNDIS_WLAN_NUM_KEYS 4
371#define RNDIS_WLAN_KEY_MGMT_NONE 0
372#define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
373#define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
374
375#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
376
377static const struct ieee80211_channel rndis_channels[] = {
378 { .center_freq = 2412 },
379 { .center_freq = 2417 },
380 { .center_freq = 2422 },
381 { .center_freq = 2427 },
382 { .center_freq = 2432 },
383 { .center_freq = 2437 },
384 { .center_freq = 2442 },
385 { .center_freq = 2447 },
386 { .center_freq = 2452 },
387 { .center_freq = 2457 },
388 { .center_freq = 2462 },
389 { .center_freq = 2467 },
390 { .center_freq = 2472 },
391 { .center_freq = 2484 },
392};
393
394static const struct ieee80211_rate rndis_rates[] = {
395 { .bitrate = 10 },
396 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
397 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
398 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
399 { .bitrate = 60 },
400 { .bitrate = 90 },
401 { .bitrate = 120 },
402 { .bitrate = 180 },
403 { .bitrate = 240 },
404 { .bitrate = 360 },
405 { .bitrate = 480 },
406 { .bitrate = 540 }
407};
408
409static const u32 rndis_cipher_suites[] = {
410 WLAN_CIPHER_SUITE_WEP40,
411 WLAN_CIPHER_SUITE_WEP104,
412 WLAN_CIPHER_SUITE_TKIP,
413 WLAN_CIPHER_SUITE_CCMP,
414};
415
416struct rndis_wlan_encr_key {
417 int len;
418 u32 cipher;
419 u8 material[32];
420 u8 bssid[ETH_ALEN];
421 bool pairwise;
422 bool tx_key;
423};
424
425
426struct rndis_wlan_private {
427 struct usbnet *usbdev;
428
429 struct wireless_dev wdev;
430
431 struct cfg80211_scan_request *scan_request;
432
433 struct workqueue_struct *workqueue;
434 struct delayed_work dev_poller_work;
435 struct delayed_work scan_work;
436 struct work_struct work;
437 struct mutex command_lock;
438 unsigned long work_pending;
439 int last_qual;
440 s32 cqm_rssi_thold;
441 u32 cqm_rssi_hyst;
442 int last_cqm_event_rssi;
443
444 struct ieee80211_supported_band band;
445 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
446 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
447 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
448
449 int device_type;
450 int caps;
451 int multicast_size;
452
453
454 char param_country[4];
455 int param_frameburst;
456 int param_afterburner;
457 int param_power_save;
458 int param_power_output;
459 int param_roamtrigger;
460 int param_roamdelta;
461 u32 param_workaround_interval;
462
463
464 bool radio_on;
465 int power_mode;
466 int infra_mode;
467 bool connected;
468 u8 bssid[ETH_ALEN];
469 u32 current_command_oid;
470
471
472 u8 encr_tx_key_index;
473 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
474 int wpa_version;
475
476 u8 command_buffer[COMMAND_BUFFER_SIZE];
477};
478
479
480
481
482static int rndis_change_virtual_intf(struct wiphy *wiphy,
483 struct net_device *dev,
484 enum nl80211_iftype type, u32 *flags,
485 struct vif_params *params);
486
487static int rndis_scan(struct wiphy *wiphy,
488 struct cfg80211_scan_request *request);
489
490static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
491
492static int rndis_set_tx_power(struct wiphy *wiphy,
493 enum nl80211_tx_power_setting type,
494 int mbm);
495static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
496
497static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
498 struct cfg80211_connect_params *sme);
499
500static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
501 u16 reason_code);
502
503static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
504 struct cfg80211_ibss_params *params);
505
506static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
507
508static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
509 u8 key_index, bool pairwise, const u8 *mac_addr,
510 struct key_params *params);
511
512static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
513 u8 key_index, bool pairwise, const u8 *mac_addr);
514
515static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
516 u8 key_index, bool unicast, bool multicast);
517
518static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
519 u8 *mac, struct station_info *sinfo);
520
521static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
522 int idx, u8 *mac, struct station_info *sinfo);
523
524static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
525 struct cfg80211_pmksa *pmksa);
526
527static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
528 struct cfg80211_pmksa *pmksa);
529
530static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
531
532static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
533 bool enabled, int timeout);
534
535static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
536 struct net_device *dev,
537 s32 rssi_thold, u32 rssi_hyst);
538
539static const struct cfg80211_ops rndis_config_ops = {
540 .change_virtual_intf = rndis_change_virtual_intf,
541 .scan = rndis_scan,
542 .set_wiphy_params = rndis_set_wiphy_params,
543 .set_tx_power = rndis_set_tx_power,
544 .get_tx_power = rndis_get_tx_power,
545 .connect = rndis_connect,
546 .disconnect = rndis_disconnect,
547 .join_ibss = rndis_join_ibss,
548 .leave_ibss = rndis_leave_ibss,
549 .add_key = rndis_add_key,
550 .del_key = rndis_del_key,
551 .set_default_key = rndis_set_default_key,
552 .get_station = rndis_get_station,
553 .dump_station = rndis_dump_station,
554 .set_pmksa = rndis_set_pmksa,
555 .del_pmksa = rndis_del_pmksa,
556 .flush_pmksa = rndis_flush_pmksa,
557 .set_power_mgmt = rndis_set_power_mgmt,
558 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
559};
560
561static void *rndis_wiphy_privid = &rndis_wiphy_privid;
562
563
564static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
565{
566 return (struct rndis_wlan_private *)dev->driver_priv;
567}
568
569static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
570{
571 switch (priv->param_power_output) {
572 default:
573 case 3:
574 return BCM4320_DEFAULT_TXPOWER_DBM_100;
575 case 2:
576 return BCM4320_DEFAULT_TXPOWER_DBM_75;
577 case 1:
578 return BCM4320_DEFAULT_TXPOWER_DBM_50;
579 case 0:
580 return BCM4320_DEFAULT_TXPOWER_DBM_25;
581 }
582}
583
584static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
585{
586 int cipher = priv->encr_keys[idx].cipher;
587
588 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
589 cipher == WLAN_CIPHER_SUITE_TKIP);
590}
591
592static int rndis_cipher_to_alg(u32 cipher)
593{
594 switch (cipher) {
595 default:
596 return RNDIS_WLAN_ALG_NONE;
597 case WLAN_CIPHER_SUITE_WEP40:
598 case WLAN_CIPHER_SUITE_WEP104:
599 return RNDIS_WLAN_ALG_WEP;
600 case WLAN_CIPHER_SUITE_TKIP:
601 return RNDIS_WLAN_ALG_TKIP;
602 case WLAN_CIPHER_SUITE_CCMP:
603 return RNDIS_WLAN_ALG_CCMP;
604 }
605}
606
607static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
608{
609 switch (akm_suite) {
610 default:
611 return RNDIS_WLAN_KEY_MGMT_NONE;
612 case WLAN_AKM_SUITE_8021X:
613 return RNDIS_WLAN_KEY_MGMT_802_1X;
614 case WLAN_AKM_SUITE_PSK:
615 return RNDIS_WLAN_KEY_MGMT_PSK;
616 }
617}
618
619#ifdef DEBUG
620static const char *oid_to_string(u32 oid)
621{
622 switch (oid) {
623#define OID_STR(oid) case oid: return(#oid)
624
625 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
626 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
627 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
628 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
629
630
631 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
632 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
633
634 OID_STR(RNDIS_OID_GEN_XMIT_OK);
635 OID_STR(RNDIS_OID_GEN_RCV_OK);
636 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
637 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
638 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
639
640 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
641 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
642 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
643
644 OID_STR(RNDIS_OID_802_11_BSSID);
645 OID_STR(RNDIS_OID_802_11_SSID);
646 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
647 OID_STR(RNDIS_OID_802_11_ADD_WEP);
648 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
649 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
650 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
651 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
652 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
653 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
654 OID_STR(RNDIS_OID_802_11_ADD_KEY);
655 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
656 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
657 OID_STR(RNDIS_OID_802_11_CAPABILITY);
658 OID_STR(RNDIS_OID_802_11_PMKID);
659 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
660 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
661 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
662 OID_STR(RNDIS_OID_802_11_RSSI);
663 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
664 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
665 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
666 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
667 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
668 OID_STR(RNDIS_OID_802_11_POWER_MODE);
669 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
670#undef OID_STR
671 }
672
673 return "?";
674}
675#else
676static const char *oid_to_string(u32 oid)
677{
678 return "?";
679}
680#endif
681
682
683static int rndis_error_status(__le32 rndis_status)
684{
685 int ret = -EINVAL;
686 switch (le32_to_cpu(rndis_status)) {
687 case RNDIS_STATUS_SUCCESS:
688 ret = 0;
689 break;
690 case RNDIS_STATUS_FAILURE:
691 case RNDIS_STATUS_INVALID_DATA:
692 ret = -EINVAL;
693 break;
694 case RNDIS_STATUS_NOT_SUPPORTED:
695 ret = -EOPNOTSUPP;
696 break;
697 case RNDIS_STATUS_ADAPTER_NOT_READY:
698 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
699 ret = -EBUSY;
700 break;
701 }
702 return ret;
703}
704
705static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
706{
707 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
708 union {
709 void *buf;
710 struct rndis_msg_hdr *header;
711 struct rndis_query *get;
712 struct rndis_query_c *get_c;
713 } u;
714 int ret, buflen;
715 int resplen, respoffs, copylen;
716
717 buflen = *len + sizeof(*u.get);
718 if (buflen < CONTROL_BUFFER_SIZE)
719 buflen = CONTROL_BUFFER_SIZE;
720
721 if (buflen > COMMAND_BUFFER_SIZE) {
722 u.buf = kmalloc(buflen, GFP_KERNEL);
723 if (!u.buf)
724 return -ENOMEM;
725 } else {
726 u.buf = priv->command_buffer;
727 }
728
729 mutex_lock(&priv->command_lock);
730
731 memset(u.get, 0, sizeof *u.get);
732 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
733 u.get->msg_len = cpu_to_le32(sizeof *u.get);
734 u.get->oid = cpu_to_le32(oid);
735
736 priv->current_command_oid = oid;
737 ret = rndis_command(dev, u.header, buflen);
738 priv->current_command_oid = 0;
739 if (ret < 0)
740 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
741 __func__, oid_to_string(oid), ret,
742 le32_to_cpu(u.get_c->status));
743
744 if (ret == 0) {
745 resplen = le32_to_cpu(u.get_c->len);
746 respoffs = le32_to_cpu(u.get_c->offset) + 8;
747
748 if (respoffs > buflen) {
749
750 netdev_dbg(dev->net, "%s(%s): received invalid "
751 "data offset: %d > %d\n", __func__,
752 oid_to_string(oid), respoffs, buflen);
753
754 ret = -EINVAL;
755 goto exit_unlock;
756 }
757
758 if ((resplen + respoffs) > buflen) {
759
760
761
762 copylen = buflen - respoffs;
763 } else {
764 copylen = resplen;
765 }
766
767 if (copylen > *len)
768 copylen = *len;
769
770 memcpy(data, u.buf + respoffs, copylen);
771
772 *len = resplen;
773
774 ret = rndis_error_status(u.get_c->status);
775 if (ret < 0)
776 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
777 __func__, oid_to_string(oid),
778 le32_to_cpu(u.get_c->status), ret);
779 }
780
781exit_unlock:
782 mutex_unlock(&priv->command_lock);
783
784 if (u.buf != priv->command_buffer)
785 kfree(u.buf);
786 return ret;
787}
788
789static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
790 int len)
791{
792 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
793 union {
794 void *buf;
795 struct rndis_msg_hdr *header;
796 struct rndis_set *set;
797 struct rndis_set_c *set_c;
798 } u;
799 int ret, buflen;
800
801 buflen = len + sizeof(*u.set);
802 if (buflen < CONTROL_BUFFER_SIZE)
803 buflen = CONTROL_BUFFER_SIZE;
804
805 if (buflen > COMMAND_BUFFER_SIZE) {
806 u.buf = kmalloc(buflen, GFP_KERNEL);
807 if (!u.buf)
808 return -ENOMEM;
809 } else {
810 u.buf = priv->command_buffer;
811 }
812
813 mutex_lock(&priv->command_lock);
814
815 memset(u.set, 0, sizeof *u.set);
816 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
817 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
818 u.set->oid = cpu_to_le32(oid);
819 u.set->len = cpu_to_le32(len);
820 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
821 u.set->handle = cpu_to_le32(0);
822 memcpy(u.buf + sizeof(*u.set), data, len);
823
824 priv->current_command_oid = oid;
825 ret = rndis_command(dev, u.header, buflen);
826 priv->current_command_oid = 0;
827 if (ret < 0)
828 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
829 __func__, oid_to_string(oid), ret,
830 le32_to_cpu(u.set_c->status));
831
832 if (ret == 0) {
833 ret = rndis_error_status(u.set_c->status);
834
835 if (ret < 0)
836 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
837 __func__, oid_to_string(oid),
838 le32_to_cpu(u.set_c->status), ret);
839 }
840
841 mutex_unlock(&priv->command_lock);
842
843 if (u.buf != priv->command_buffer)
844 kfree(u.buf);
845 return ret;
846}
847
848static int rndis_reset(struct usbnet *usbdev)
849{
850 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
851 struct rndis_reset *reset;
852 int ret;
853
854 mutex_lock(&priv->command_lock);
855
856 reset = (void *)priv->command_buffer;
857 memset(reset, 0, sizeof(*reset));
858 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
859 reset->msg_len = cpu_to_le32(sizeof(*reset));
860 priv->current_command_oid = 0;
861 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
862
863 mutex_unlock(&priv->command_lock);
864
865 if (ret < 0)
866 return ret;
867 return 0;
868}
869
870
871
872
873
874
875static int rndis_set_config_parameter(struct usbnet *dev, char *param,
876 int value_type, void *value)
877{
878 struct ndis_config_param *infobuf;
879 int value_len, info_len, param_len, ret, i;
880 __le16 *unibuf;
881 __le32 *dst_value;
882
883 if (value_type == 0)
884 value_len = sizeof(__le32);
885 else if (value_type == 2)
886 value_len = strlen(value) * sizeof(__le16);
887 else
888 return -EINVAL;
889
890 param_len = strlen(param) * sizeof(__le16);
891 info_len = sizeof(*infobuf) + param_len + value_len;
892
893#ifdef DEBUG
894 info_len += 12;
895#endif
896 infobuf = kmalloc(info_len, GFP_KERNEL);
897 if (!infobuf)
898 return -ENOMEM;
899
900#ifdef DEBUG
901 info_len -= 12;
902
903 memset(infobuf, 0xCC, info_len + 12);
904#endif
905
906 if (value_type == 2)
907 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
908 param, (u8 *)value);
909 else
910 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
911 param, *(u32 *)value);
912
913 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
914 infobuf->name_length = cpu_to_le32(param_len);
915 infobuf->type = cpu_to_le32(value_type);
916 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
917 infobuf->value_length = cpu_to_le32(value_len);
918
919
920 unibuf = (void *)infobuf + sizeof(*infobuf);
921 for (i = 0; i < param_len / sizeof(__le16); i++)
922 unibuf[i] = cpu_to_le16(param[i]);
923
924 if (value_type == 2) {
925 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
926 for (i = 0; i < value_len / sizeof(__le16); i++)
927 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
928 } else {
929 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
930 *dst_value = cpu_to_le32(*(u32 *)value);
931 }
932
933#ifdef DEBUG
934 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
935 for (i = 0; i < info_len; i += 12) {
936 u32 *tmp = (u32 *)((u8 *)infobuf + i);
937 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
938 cpu_to_be32(tmp[0]),
939 cpu_to_be32(tmp[1]),
940 cpu_to_be32(tmp[2]));
941 }
942#endif
943
944 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
945 infobuf, info_len);
946 if (ret != 0)
947 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
948 ret);
949
950 kfree(infobuf);
951 return ret;
952}
953
954static int rndis_set_config_parameter_str(struct usbnet *dev,
955 char *param, char *value)
956{
957 return rndis_set_config_parameter(dev, param, 2, value);
958}
959
960
961
962
963static int level_to_qual(int level)
964{
965 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
966 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
967}
968
969
970
971
972static int set_infra_mode(struct usbnet *usbdev, int mode);
973static void restore_keys(struct usbnet *usbdev);
974static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
975 bool *matched);
976
977static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
978{
979 __le32 tmp;
980
981
982 tmp = cpu_to_le32(1);
983 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
984 sizeof(tmp));
985}
986
987static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
988{
989 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
990 int ret;
991
992 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
993 ssid, sizeof(*ssid));
994 if (ret < 0) {
995 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
996 return ret;
997 }
998 if (ret == 0) {
999 priv->radio_on = true;
1000 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1001 }
1002
1003 return ret;
1004}
1005
1006static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1007{
1008 int ret;
1009
1010 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1011 bssid, ETH_ALEN);
1012 if (ret < 0) {
1013 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1014 bssid, ret);
1015 return ret;
1016 }
1017
1018 return ret;
1019}
1020
1021static int clear_bssid(struct usbnet *usbdev)
1022{
1023 static const u8 broadcast_mac[ETH_ALEN] = {
1024 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1025 };
1026
1027 return set_bssid(usbdev, broadcast_mac);
1028}
1029
1030static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1031{
1032 int ret, len;
1033
1034 len = ETH_ALEN;
1035 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1036 bssid, &len);
1037
1038 if (ret != 0)
1039 memset(bssid, 0, ETH_ALEN);
1040
1041 return ret;
1042}
1043
1044static int get_association_info(struct usbnet *usbdev,
1045 struct ndis_80211_assoc_info *info, int len)
1046{
1047 return rndis_query_oid(usbdev,
1048 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1049 info, &len);
1050}
1051
1052static bool is_associated(struct usbnet *usbdev)
1053{
1054 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1055 u8 bssid[ETH_ALEN];
1056 int ret;
1057
1058 if (!priv->radio_on)
1059 return false;
1060
1061 ret = get_bssid(usbdev, bssid);
1062
1063 return (ret == 0 && !is_zero_ether_addr(bssid));
1064}
1065
1066static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1067{
1068 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1069 struct ndis_80211_ssid ssid;
1070 int i, ret = 0;
1071
1072 if (priv->radio_on) {
1073 ret = rndis_set_oid(usbdev,
1074 RNDIS_OID_802_11_DISASSOCIATE,
1075 NULL, 0);
1076 if (ret == 0) {
1077 priv->radio_on = false;
1078 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1079 __func__);
1080
1081 if (reset_ssid)
1082 msleep(100);
1083 }
1084 }
1085
1086
1087
1088 if (reset_ssid) {
1089
1090
1091
1092 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1093
1094 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1095 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1096 ssid.essid[0] = 0x1;
1097 ssid.essid[1] = 0xff;
1098 for (i = 2; i < sizeof(ssid.essid); i++)
1099 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1100 ret = set_essid(usbdev, &ssid);
1101 }
1102 return ret;
1103}
1104
1105static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1106 enum nl80211_auth_type auth_type, int keymgmt)
1107{
1108 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1109 __le32 tmp;
1110 int auth_mode, ret;
1111
1112 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1113 __func__, wpa_version, auth_type, keymgmt);
1114
1115 if (wpa_version & NL80211_WPA_VERSION_2) {
1116 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1117 auth_mode = NDIS_80211_AUTH_WPA2;
1118 else
1119 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1120 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1121 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1122 auth_mode = NDIS_80211_AUTH_WPA;
1123 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1124 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1125 else
1126 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1127 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1128 auth_mode = NDIS_80211_AUTH_SHARED;
1129 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1130 auth_mode = NDIS_80211_AUTH_OPEN;
1131 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1132 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1133 else
1134 return -ENOTSUPP;
1135
1136 tmp = cpu_to_le32(auth_mode);
1137 ret = rndis_set_oid(usbdev,
1138 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1139 &tmp, sizeof(tmp));
1140 if (ret != 0) {
1141 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1142 ret);
1143 return ret;
1144 }
1145
1146 priv->wpa_version = wpa_version;
1147
1148 return 0;
1149}
1150
1151static int set_priv_filter(struct usbnet *usbdev)
1152{
1153 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1154 __le32 tmp;
1155
1156 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1157 __func__, priv->wpa_version);
1158
1159 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1160 priv->wpa_version & NL80211_WPA_VERSION_1)
1161 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1162 else
1163 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1164
1165 return rndis_set_oid(usbdev,
1166 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1167 sizeof(tmp));
1168}
1169
1170static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1171{
1172 __le32 tmp;
1173 int encr_mode, ret;
1174
1175 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1176 __func__, pairwise, groupwise);
1177
1178 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1179 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1180 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1181 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1182 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1183 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1184 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1185 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1186 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1187 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1188 else
1189 encr_mode = NDIS_80211_ENCR_DISABLED;
1190
1191 tmp = cpu_to_le32(encr_mode);
1192 ret = rndis_set_oid(usbdev,
1193 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1194 sizeof(tmp));
1195 if (ret != 0) {
1196 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1197 ret);
1198 return ret;
1199 }
1200
1201 return 0;
1202}
1203
1204static int set_infra_mode(struct usbnet *usbdev, int mode)
1205{
1206 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1207 __le32 tmp;
1208 int ret;
1209
1210 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1211 __func__, priv->infra_mode);
1212
1213 tmp = cpu_to_le32(mode);
1214 ret = rndis_set_oid(usbdev,
1215 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1216 &tmp, sizeof(tmp));
1217 if (ret != 0) {
1218 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1219 ret);
1220 return ret;
1221 }
1222
1223
1224
1225
1226 restore_keys(usbdev);
1227
1228 priv->infra_mode = mode;
1229 return 0;
1230}
1231
1232static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1233{
1234 __le32 tmp;
1235
1236 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1237
1238 if (rts_threshold < 0 || rts_threshold > 2347)
1239 rts_threshold = 2347;
1240
1241 tmp = cpu_to_le32(rts_threshold);
1242 return rndis_set_oid(usbdev,
1243 RNDIS_OID_802_11_RTS_THRESHOLD,
1244 &tmp, sizeof(tmp));
1245}
1246
1247static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1248{
1249 __le32 tmp;
1250
1251 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1252
1253 if (frag_threshold < 256 || frag_threshold > 2346)
1254 frag_threshold = 2346;
1255
1256 tmp = cpu_to_le32(frag_threshold);
1257 return rndis_set_oid(usbdev,
1258 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1259 &tmp, sizeof(tmp));
1260}
1261
1262static void set_default_iw_params(struct usbnet *usbdev)
1263{
1264 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1265 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1266 RNDIS_WLAN_KEY_MGMT_NONE);
1267 set_priv_filter(usbdev);
1268 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1269}
1270
1271static int deauthenticate(struct usbnet *usbdev)
1272{
1273 int ret;
1274
1275 ret = disassociate(usbdev, true);
1276 set_default_iw_params(usbdev);
1277 return ret;
1278}
1279
1280static int set_channel(struct usbnet *usbdev, int channel)
1281{
1282 struct ndis_80211_conf config;
1283 unsigned int dsconfig;
1284 int len, ret;
1285
1286 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1287
1288
1289 if (is_associated(usbdev))
1290 return 0;
1291
1292 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1293
1294 len = sizeof(config);
1295 ret = rndis_query_oid(usbdev,
1296 RNDIS_OID_802_11_CONFIGURATION,
1297 &config, &len);
1298 if (ret < 0) {
1299 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1300 __func__);
1301 return ret;
1302 }
1303
1304 config.ds_config = cpu_to_le32(dsconfig);
1305 ret = rndis_set_oid(usbdev,
1306 RNDIS_OID_802_11_CONFIGURATION,
1307 &config, sizeof(config));
1308
1309 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1310
1311 return ret;
1312}
1313
1314static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1315 u32 *beacon_period)
1316{
1317 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1318 struct ieee80211_channel *channel;
1319 struct ndis_80211_conf config;
1320 int len, ret;
1321
1322
1323 len = sizeof(config);
1324 ret = rndis_query_oid(usbdev,
1325 RNDIS_OID_802_11_CONFIGURATION,
1326 &config, &len);
1327 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1328 __func__, ret);
1329 if (ret < 0)
1330 return NULL;
1331
1332 channel = ieee80211_get_channel(priv->wdev.wiphy,
1333 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1334 if (!channel)
1335 return NULL;
1336
1337 if (beacon_period)
1338 *beacon_period = le32_to_cpu(config.beacon_period);
1339 return channel;
1340}
1341
1342
1343static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1344 u8 index)
1345{
1346 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1347 struct ndis_80211_wep_key ndis_key;
1348 u32 cipher;
1349 int ret;
1350
1351 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1352 __func__, index, key_len);
1353
1354 if (index >= RNDIS_WLAN_NUM_KEYS)
1355 return -EINVAL;
1356
1357 if (key_len == 5)
1358 cipher = WLAN_CIPHER_SUITE_WEP40;
1359 else if (key_len == 13)
1360 cipher = WLAN_CIPHER_SUITE_WEP104;
1361 else
1362 return -EINVAL;
1363
1364 memset(&ndis_key, 0, sizeof(ndis_key));
1365
1366 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1367 ndis_key.length = cpu_to_le32(key_len);
1368 ndis_key.index = cpu_to_le32(index);
1369 memcpy(&ndis_key.material, key, key_len);
1370
1371 if (index == priv->encr_tx_key_index) {
1372 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1373 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1374 RNDIS_WLAN_ALG_NONE);
1375 if (ret)
1376 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1377 ret);
1378 }
1379
1380 ret = rndis_set_oid(usbdev,
1381 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1382 sizeof(ndis_key));
1383 if (ret != 0) {
1384 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1385 index + 1, ret);
1386 return ret;
1387 }
1388
1389 priv->encr_keys[index].len = key_len;
1390 priv->encr_keys[index].cipher = cipher;
1391 memcpy(&priv->encr_keys[index].material, key, key_len);
1392 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1393
1394 return 0;
1395}
1396
1397static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1398 u8 index, const u8 *addr, const u8 *rx_seq,
1399 int seq_len, u32 cipher, __le32 flags)
1400{
1401 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1402 struct ndis_80211_key ndis_key;
1403 bool is_addr_ok;
1404 int ret;
1405
1406 if (index >= RNDIS_WLAN_NUM_KEYS) {
1407 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1408 __func__, index);
1409 return -EINVAL;
1410 }
1411 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1412 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1413 __func__, key_len);
1414 return -EINVAL;
1415 }
1416 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1417 if (!rx_seq || seq_len <= 0) {
1418 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1419 __func__);
1420 return -EINVAL;
1421 }
1422 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1423 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1424 return -EINVAL;
1425 }
1426 }
1427
1428 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1429 !is_broadcast_ether_addr(addr);
1430 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1431 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1432 __func__, addr);
1433 return -EINVAL;
1434 }
1435
1436 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1437 __func__, index,
1438 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1439 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1440 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1441
1442 memset(&ndis_key, 0, sizeof(ndis_key));
1443
1444 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1445 sizeof(ndis_key.material) + key_len);
1446 ndis_key.length = cpu_to_le32(key_len);
1447 ndis_key.index = cpu_to_le32(index) | flags;
1448
1449 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1450
1451
1452 memcpy(ndis_key.material, key, 16);
1453 memcpy(ndis_key.material + 16, key + 24, 8);
1454 memcpy(ndis_key.material + 24, key + 16, 8);
1455 } else
1456 memcpy(ndis_key.material, key, key_len);
1457
1458 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1459 memcpy(ndis_key.rsc, rx_seq, seq_len);
1460
1461 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1462
1463 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1464 } else {
1465
1466 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1467 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1468 else
1469 get_bssid(usbdev, ndis_key.bssid);
1470 }
1471
1472 ret = rndis_set_oid(usbdev,
1473 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1474 le32_to_cpu(ndis_key.size));
1475 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1476 __func__, ret);
1477 if (ret != 0)
1478 return ret;
1479
1480 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1481 priv->encr_keys[index].len = key_len;
1482 priv->encr_keys[index].cipher = cipher;
1483 memcpy(&priv->encr_keys[index].material, key, key_len);
1484 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1485 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1486 else
1487 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1488
1489 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1490 priv->encr_tx_key_index = index;
1491
1492 return 0;
1493}
1494
1495static int restore_key(struct usbnet *usbdev, u8 key_idx)
1496{
1497 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1498 struct rndis_wlan_encr_key key;
1499
1500 if (is_wpa_key(priv, key_idx))
1501 return 0;
1502
1503 key = priv->encr_keys[key_idx];
1504
1505 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1506
1507 if (key.len == 0)
1508 return 0;
1509
1510 return add_wep_key(usbdev, key.material, key.len, key_idx);
1511}
1512
1513static void restore_keys(struct usbnet *usbdev)
1514{
1515 int i;
1516
1517 for (i = 0; i < 4; i++)
1518 restore_key(usbdev, i);
1519}
1520
1521static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1522{
1523 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1524}
1525
1526
1527static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1528{
1529 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1530 struct ndis_80211_remove_key remove_key;
1531 __le32 keyindex;
1532 bool is_wpa;
1533 int ret;
1534
1535 if (index >= RNDIS_WLAN_NUM_KEYS)
1536 return -ENOENT;
1537
1538 if (priv->encr_keys[index].len == 0)
1539 return 0;
1540
1541 is_wpa = is_wpa_key(priv, index);
1542
1543 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1544 __func__, index, is_wpa ? "wpa" : "wep",
1545 priv->encr_keys[index].len);
1546
1547 clear_key(priv, index);
1548
1549 if (is_wpa) {
1550 remove_key.size = cpu_to_le32(sizeof(remove_key));
1551 remove_key.index = cpu_to_le32(index);
1552 if (bssid) {
1553
1554 if (!is_broadcast_ether_addr(bssid))
1555 remove_key.index |=
1556 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1557 memcpy(remove_key.bssid, bssid,
1558 sizeof(remove_key.bssid));
1559 } else
1560 memset(remove_key.bssid, 0xff,
1561 sizeof(remove_key.bssid));
1562
1563 ret = rndis_set_oid(usbdev,
1564 RNDIS_OID_802_11_REMOVE_KEY,
1565 &remove_key, sizeof(remove_key));
1566 if (ret != 0)
1567 return ret;
1568 } else {
1569 keyindex = cpu_to_le32(index);
1570 ret = rndis_set_oid(usbdev,
1571 RNDIS_OID_802_11_REMOVE_WEP,
1572 &keyindex, sizeof(keyindex));
1573 if (ret != 0) {
1574 netdev_warn(usbdev->net,
1575 "removing encryption key %d failed (%08X)\n",
1576 index, ret);
1577 return ret;
1578 }
1579 }
1580
1581
1582 if (index == priv->encr_tx_key_index)
1583 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1584
1585 return 0;
1586}
1587
1588static void set_multicast_list(struct usbnet *usbdev)
1589{
1590 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1591 struct netdev_hw_addr *ha;
1592 __le32 filter, basefilter;
1593 int ret;
1594 char *mc_addrs = NULL;
1595 int mc_count;
1596
1597 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1598 RNDIS_PACKET_TYPE_BROADCAST);
1599
1600 if (usbdev->net->flags & IFF_PROMISC) {
1601 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1602 RNDIS_PACKET_TYPE_ALL_LOCAL);
1603 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1604 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1605 }
1606
1607 if (filter != basefilter)
1608 goto set_filter;
1609
1610
1611
1612
1613
1614 netif_addr_lock_bh(usbdev->net);
1615 mc_count = netdev_mc_count(usbdev->net);
1616 if (mc_count > priv->multicast_size) {
1617 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1618 } else if (mc_count) {
1619 int i = 0;
1620
1621 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1622 if (!mc_addrs) {
1623 netdev_warn(usbdev->net,
1624 "couldn't alloc %d bytes of memory\n",
1625 mc_count * ETH_ALEN);
1626 netif_addr_unlock_bh(usbdev->net);
1627 return;
1628 }
1629
1630 netdev_for_each_mc_addr(ha, usbdev->net)
1631 memcpy(mc_addrs + i++ * ETH_ALEN,
1632 ha->addr, ETH_ALEN);
1633 }
1634 netif_addr_unlock_bh(usbdev->net);
1635
1636 if (filter != basefilter)
1637 goto set_filter;
1638
1639 if (mc_count) {
1640 ret = rndis_set_oid(usbdev,
1641 RNDIS_OID_802_3_MULTICAST_LIST,
1642 mc_addrs, mc_count * ETH_ALEN);
1643 kfree(mc_addrs);
1644 if (ret == 0)
1645 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1646 else
1647 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1648
1649 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1650 mc_count, priv->multicast_size, ret);
1651 }
1652
1653set_filter:
1654 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1655 sizeof(filter));
1656 if (ret < 0) {
1657 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1658 le32_to_cpu(filter));
1659 }
1660
1661 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1662 le32_to_cpu(filter), ret);
1663}
1664
1665#ifdef DEBUG
1666static void debug_print_pmkids(struct usbnet *usbdev,
1667 struct ndis_80211_pmkid *pmkids,
1668 const char *func_str)
1669{
1670 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1671 int i, len, count, max_pmkids, entry_len;
1672
1673 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1674 len = le32_to_cpu(pmkids->length);
1675 count = le32_to_cpu(pmkids->bssid_info_count);
1676
1677 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1678
1679 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1680 "%d)\n", func_str, count, len, entry_len);
1681
1682 if (count > max_pmkids)
1683 count = max_pmkids;
1684
1685 for (i = 0; i < count; i++) {
1686 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1687
1688 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1689 "pmkid: %08X:%08X:%08X:%08X\n",
1690 func_str, pmkids->bssid_info[i].bssid,
1691 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1692 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1693 }
1694}
1695#else
1696static void debug_print_pmkids(struct usbnet *usbdev,
1697 struct ndis_80211_pmkid *pmkids,
1698 const char *func_str)
1699{
1700 return;
1701}
1702#endif
1703
1704static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1705{
1706 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1707 struct ndis_80211_pmkid *pmkids;
1708 int len, ret, max_pmkids;
1709
1710 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1711 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1712
1713 pmkids = kzalloc(len, GFP_KERNEL);
1714 if (!pmkids)
1715 return ERR_PTR(-ENOMEM);
1716
1717 pmkids->length = cpu_to_le32(len);
1718 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1719
1720 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1721 pmkids, &len);
1722 if (ret < 0) {
1723 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1724 " -> %d\n", __func__, len, max_pmkids, ret);
1725
1726 kfree(pmkids);
1727 return ERR_PTR(ret);
1728 }
1729
1730 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1731 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1732
1733 debug_print_pmkids(usbdev, pmkids, __func__);
1734
1735 return pmkids;
1736}
1737
1738static int set_device_pmkids(struct usbnet *usbdev,
1739 struct ndis_80211_pmkid *pmkids)
1740{
1741 int ret, len, num_pmkids;
1742
1743 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1744 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1745 pmkids->length = cpu_to_le32(len);
1746
1747 debug_print_pmkids(usbdev, pmkids, __func__);
1748
1749 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1750 le32_to_cpu(pmkids->length));
1751 if (ret < 0) {
1752 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1753 "\n", __func__, len, num_pmkids, ret);
1754 }
1755
1756 kfree(pmkids);
1757 return ret;
1758}
1759
1760static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1761 struct ndis_80211_pmkid *pmkids,
1762 struct cfg80211_pmksa *pmksa,
1763 int max_pmkids)
1764{
1765 int i, newlen, err;
1766 unsigned int count;
1767
1768 count = le32_to_cpu(pmkids->bssid_info_count);
1769
1770 if (count > max_pmkids)
1771 count = max_pmkids;
1772
1773 for (i = 0; i < count; i++)
1774 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1775 pmksa->bssid))
1776 break;
1777
1778
1779 if (i == count) {
1780 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1781 __func__, pmksa->bssid);
1782 err = -ENOENT;
1783 goto error;
1784 }
1785
1786 for (; i + 1 < count; i++)
1787 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1788
1789 count--;
1790 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1791
1792 pmkids->length = cpu_to_le32(newlen);
1793 pmkids->bssid_info_count = cpu_to_le32(count);
1794
1795 return pmkids;
1796error:
1797 kfree(pmkids);
1798 return ERR_PTR(err);
1799}
1800
1801static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1802 struct ndis_80211_pmkid *pmkids,
1803 struct cfg80211_pmksa *pmksa,
1804 int max_pmkids)
1805{
1806 struct ndis_80211_pmkid *new_pmkids;
1807 int i, err, newlen;
1808 unsigned int count;
1809
1810 count = le32_to_cpu(pmkids->bssid_info_count);
1811
1812 if (count > max_pmkids)
1813 count = max_pmkids;
1814
1815
1816 for (i = 0; i < count; i++) {
1817 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1818 pmksa->bssid))
1819 continue;
1820
1821 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1822 WLAN_PMKID_LEN);
1823
1824 return pmkids;
1825 }
1826
1827
1828 if (i == max_pmkids) {
1829 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1830 err = -ENOSPC;
1831 goto error;
1832 }
1833
1834
1835 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1836
1837 new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1838 if (!new_pmkids) {
1839 err = -ENOMEM;
1840 goto error;
1841 }
1842 pmkids = new_pmkids;
1843
1844 pmkids->length = cpu_to_le32(newlen);
1845 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1846
1847 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1848 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1849
1850 return pmkids;
1851error:
1852 kfree(pmkids);
1853 return ERR_PTR(err);
1854}
1855
1856
1857
1858
1859static int rndis_change_virtual_intf(struct wiphy *wiphy,
1860 struct net_device *dev,
1861 enum nl80211_iftype type, u32 *flags,
1862 struct vif_params *params)
1863{
1864 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1865 struct usbnet *usbdev = priv->usbdev;
1866 int mode;
1867
1868 switch (type) {
1869 case NL80211_IFTYPE_ADHOC:
1870 mode = NDIS_80211_INFRA_ADHOC;
1871 break;
1872 case NL80211_IFTYPE_STATION:
1873 mode = NDIS_80211_INFRA_INFRA;
1874 break;
1875 default:
1876 return -EINVAL;
1877 }
1878
1879 priv->wdev.iftype = type;
1880
1881 return set_infra_mode(usbdev, mode);
1882}
1883
1884static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1885{
1886 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1887 struct usbnet *usbdev = priv->usbdev;
1888 int err;
1889
1890 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1891 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1892 if (err < 0)
1893 return err;
1894 }
1895
1896 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1897 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1898 if (err < 0)
1899 return err;
1900 }
1901
1902 return 0;
1903}
1904
1905static int rndis_set_tx_power(struct wiphy *wiphy,
1906 enum nl80211_tx_power_setting type,
1907 int mbm)
1908{
1909 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1910 struct usbnet *usbdev = priv->usbdev;
1911
1912 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1913 __func__, type, mbm);
1914
1915 if (mbm < 0 || (mbm % 100))
1916 return -ENOTSUPP;
1917
1918
1919
1920
1921
1922 if (type == NL80211_TX_POWER_AUTOMATIC ||
1923 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1924 if (!priv->radio_on)
1925 disassociate(usbdev, true);
1926
1927 return 0;
1928 }
1929
1930 return -ENOTSUPP;
1931}
1932
1933static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1934{
1935 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1936 struct usbnet *usbdev = priv->usbdev;
1937
1938 *dbm = get_bcm4320_power_dbm(priv);
1939
1940 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1941
1942 return 0;
1943}
1944
1945#define SCAN_DELAY_JIFFIES (6 * HZ)
1946static int rndis_scan(struct wiphy *wiphy,
1947 struct cfg80211_scan_request *request)
1948{
1949 struct net_device *dev = request->wdev->netdev;
1950 struct usbnet *usbdev = netdev_priv(dev);
1951 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1952 int ret;
1953 int delay = SCAN_DELAY_JIFFIES;
1954
1955 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1956
1957
1958
1959
1960 rndis_check_bssid_list(usbdev, NULL, NULL);
1961
1962 if (!request)
1963 return -EINVAL;
1964
1965 if (priv->scan_request && priv->scan_request != request)
1966 return -EBUSY;
1967
1968 priv->scan_request = request;
1969
1970 ret = rndis_start_bssid_list_scan(usbdev);
1971 if (ret == 0) {
1972 if (priv->device_type == RNDIS_BCM4320A)
1973 delay = HZ;
1974
1975
1976 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1977 }
1978
1979 return ret;
1980}
1981
1982static bool rndis_bss_info_update(struct usbnet *usbdev,
1983 struct ndis_80211_bssid_ex *bssid)
1984{
1985 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1986 struct ieee80211_channel *channel;
1987 struct cfg80211_bss *bss;
1988 s32 signal;
1989 u64 timestamp;
1990 u16 capability;
1991 u16 beacon_interval;
1992 struct ndis_80211_fixed_ies *fixed;
1993 int ie_len, bssid_len;
1994 u8 *ie;
1995
1996 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1997 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1998
1999
2000 bssid_len = le32_to_cpu(bssid->length);
2001
2002 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2003 sizeof(struct ndis_80211_fixed_ies))
2004 return NULL;
2005
2006 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2007
2008 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2009 ie_len = min(bssid_len - (int)sizeof(*bssid),
2010 (int)le32_to_cpu(bssid->ie_length));
2011 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2012 if (ie_len < 0)
2013 return NULL;
2014
2015
2016 channel = ieee80211_get_channel(priv->wdev.wiphy,
2017 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2018 if (!channel)
2019 return NULL;
2020
2021 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2022 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2023 capability = le16_to_cpu(fixed->capabilities);
2024 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2025
2026 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2027 timestamp, capability, beacon_interval, ie, ie_len, signal,
2028 GFP_KERNEL);
2029 cfg80211_put_bss(bss);
2030
2031 return (bss != NULL);
2032}
2033
2034static struct ndis_80211_bssid_ex *next_bssid_list_item(
2035 struct ndis_80211_bssid_ex *bssid,
2036 int *bssid_len, void *buf, int len)
2037{
2038 void *buf_end, *bssid_end;
2039
2040 buf_end = (char *)buf + len;
2041 bssid_end = (char *)bssid + *bssid_len;
2042
2043 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2044 *bssid_len = 0;
2045 return NULL;
2046 } else {
2047 bssid = (void *)((char *)bssid + *bssid_len);
2048 *bssid_len = le32_to_cpu(bssid->length);
2049 return bssid;
2050 }
2051}
2052
2053static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2054 int bssid_len, void *buf, int len)
2055{
2056 void *buf_end, *bssid_end;
2057
2058 if (!bssid || bssid_len <= 0 || bssid_len > len)
2059 return false;
2060
2061 buf_end = (char *)buf + len;
2062 bssid_end = (char *)bssid + bssid_len;
2063
2064 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2065}
2066
2067static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2068 bool *matched)
2069{
2070 void *buf = NULL;
2071 struct ndis_80211_bssid_list_ex *bssid_list;
2072 struct ndis_80211_bssid_ex *bssid;
2073 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2074
2075 netdev_dbg(usbdev->net, "%s()\n", __func__);
2076
2077 len = CONTROL_BUFFER_SIZE;
2078resize_buf:
2079 buf = kzalloc(len, GFP_KERNEL);
2080 if (!buf) {
2081 ret = -ENOMEM;
2082 goto out;
2083 }
2084
2085
2086
2087
2088 new_len = len;
2089 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2090 buf, &new_len);
2091 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2092 goto out;
2093
2094 if (new_len > len) {
2095 len = new_len;
2096 kfree(buf);
2097 goto resize_buf;
2098 }
2099
2100 len = new_len;
2101
2102 bssid_list = buf;
2103 count = le32_to_cpu(bssid_list->num_items);
2104 real_count = 0;
2105 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2106
2107 bssid_len = 0;
2108 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2109
2110
2111
2112
2113 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2114 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2115 matched) {
2116 if (ether_addr_equal(bssid->mac, match_bssid))
2117 *matched = true;
2118 }
2119
2120 real_count++;
2121 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2122 }
2123
2124 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2125 " %d\n", __func__, count, real_count);
2126
2127out:
2128 kfree(buf);
2129 return ret;
2130}
2131
2132static void rndis_get_scan_results(struct work_struct *work)
2133{
2134 struct rndis_wlan_private *priv =
2135 container_of(work, struct rndis_wlan_private, scan_work.work);
2136 struct usbnet *usbdev = priv->usbdev;
2137 int ret;
2138
2139 netdev_dbg(usbdev->net, "get_scan_results\n");
2140
2141 if (!priv->scan_request)
2142 return;
2143
2144 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2145
2146 cfg80211_scan_done(priv->scan_request, ret < 0);
2147
2148 priv->scan_request = NULL;
2149}
2150
2151static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2152 struct cfg80211_connect_params *sme)
2153{
2154 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2155 struct usbnet *usbdev = priv->usbdev;
2156 struct ieee80211_channel *channel = sme->channel;
2157 struct ndis_80211_ssid ssid;
2158 int pairwise = RNDIS_WLAN_ALG_NONE;
2159 int groupwise = RNDIS_WLAN_ALG_NONE;
2160 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2161 int length, i, ret, chan = -1;
2162
2163 if (channel)
2164 chan = ieee80211_frequency_to_channel(channel->center_freq);
2165
2166 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2167 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2168 pairwise |=
2169 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2170
2171 if (sme->crypto.n_ciphers_pairwise > 0 &&
2172 pairwise == RNDIS_WLAN_ALG_NONE) {
2173 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2174 return -ENOTSUPP;
2175 }
2176
2177 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2178 keymgmt |=
2179 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2180
2181 if (sme->crypto.n_akm_suites > 0 &&
2182 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2183 netdev_err(usbdev->net, "Invalid keymgmt\n");
2184 return -ENOTSUPP;
2185 }
2186
2187 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2188 sme->ssid, sme->bssid, chan,
2189 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2190 groupwise, pairwise, keymgmt);
2191
2192 if (is_associated(usbdev))
2193 disassociate(usbdev, false);
2194
2195 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2196 if (ret < 0) {
2197 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2198 ret);
2199 goto err_turn_radio_on;
2200 }
2201
2202 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2203 keymgmt);
2204 if (ret < 0) {
2205 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2206 ret);
2207 goto err_turn_radio_on;
2208 }
2209
2210 set_priv_filter(usbdev);
2211
2212 ret = set_encr_mode(usbdev, pairwise, groupwise);
2213 if (ret < 0) {
2214 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2215 ret);
2216 goto err_turn_radio_on;
2217 }
2218
2219 if (channel) {
2220 ret = set_channel(usbdev, chan);
2221 if (ret < 0) {
2222 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2223 ret);
2224 goto err_turn_radio_on;
2225 }
2226 }
2227
2228 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2229 priv->encr_tx_key_index = sme->key_idx;
2230 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2231 if (ret < 0) {
2232 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2233 ret, sme->key_len, sme->key_idx);
2234 goto err_turn_radio_on;
2235 }
2236 }
2237
2238 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2239 !is_broadcast_ether_addr(sme->bssid)) {
2240 ret = set_bssid(usbdev, sme->bssid);
2241 if (ret < 0) {
2242 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2243 ret);
2244 goto err_turn_radio_on;
2245 }
2246 } else
2247 clear_bssid(usbdev);
2248
2249 length = sme->ssid_len;
2250 if (length > NDIS_802_11_LENGTH_SSID)
2251 length = NDIS_802_11_LENGTH_SSID;
2252
2253 memset(&ssid, 0, sizeof(ssid));
2254 ssid.length = cpu_to_le32(length);
2255 memcpy(ssid.essid, sme->ssid, length);
2256
2257
2258
2259
2260 usbnet_pause_rx(usbdev);
2261 usbnet_purge_paused_rxq(usbdev);
2262
2263 ret = set_essid(usbdev, &ssid);
2264 if (ret < 0)
2265 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2266 return ret;
2267
2268err_turn_radio_on:
2269 disassociate(usbdev, true);
2270
2271 return ret;
2272}
2273
2274static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2275 u16 reason_code)
2276{
2277 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2278 struct usbnet *usbdev = priv->usbdev;
2279
2280 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2281
2282 priv->connected = false;
2283 memset(priv->bssid, 0, ETH_ALEN);
2284
2285 return deauthenticate(usbdev);
2286}
2287
2288static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2289 struct cfg80211_ibss_params *params)
2290{
2291 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2292 struct usbnet *usbdev = priv->usbdev;
2293 struct ieee80211_channel *channel = params->channel;
2294 struct ndis_80211_ssid ssid;
2295 enum nl80211_auth_type auth_type;
2296 int ret, alg, length, chan = -1;
2297
2298 if (channel)
2299 chan = ieee80211_frequency_to_channel(channel->center_freq);
2300
2301
2302
2303
2304
2305
2306 if (params->privacy) {
2307 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2308 alg = RNDIS_WLAN_ALG_WEP;
2309 } else {
2310 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2311 alg = RNDIS_WLAN_ALG_NONE;
2312 }
2313
2314 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2315 params->ssid, params->bssid, chan, params->privacy);
2316
2317 if (is_associated(usbdev))
2318 disassociate(usbdev, false);
2319
2320 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2321 if (ret < 0) {
2322 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2323 ret);
2324 goto err_turn_radio_on;
2325 }
2326
2327 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2328 if (ret < 0) {
2329 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2330 ret);
2331 goto err_turn_radio_on;
2332 }
2333
2334 set_priv_filter(usbdev);
2335
2336 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2337 if (ret < 0) {
2338 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2339 ret);
2340 goto err_turn_radio_on;
2341 }
2342
2343 if (channel) {
2344 ret = set_channel(usbdev, chan);
2345 if (ret < 0) {
2346 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2347 ret);
2348 goto err_turn_radio_on;
2349 }
2350 }
2351
2352 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2353 !is_broadcast_ether_addr(params->bssid)) {
2354 ret = set_bssid(usbdev, params->bssid);
2355 if (ret < 0) {
2356 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2357 ret);
2358 goto err_turn_radio_on;
2359 }
2360 } else
2361 clear_bssid(usbdev);
2362
2363 length = params->ssid_len;
2364 if (length > NDIS_802_11_LENGTH_SSID)
2365 length = NDIS_802_11_LENGTH_SSID;
2366
2367 memset(&ssid, 0, sizeof(ssid));
2368 ssid.length = cpu_to_le32(length);
2369 memcpy(ssid.essid, params->ssid, length);
2370
2371
2372 usbnet_purge_paused_rxq(usbdev);
2373 usbnet_resume_rx(usbdev);
2374
2375 ret = set_essid(usbdev, &ssid);
2376 if (ret < 0)
2377 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2378 ret);
2379 return ret;
2380
2381err_turn_radio_on:
2382 disassociate(usbdev, true);
2383
2384 return ret;
2385}
2386
2387static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2388{
2389 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2390 struct usbnet *usbdev = priv->usbdev;
2391
2392 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2393
2394 priv->connected = false;
2395 memset(priv->bssid, 0, ETH_ALEN);
2396
2397 return deauthenticate(usbdev);
2398}
2399
2400static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2401 u8 key_index, bool pairwise, const u8 *mac_addr,
2402 struct key_params *params)
2403{
2404 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2405 struct usbnet *usbdev = priv->usbdev;
2406 __le32 flags;
2407
2408 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2409 __func__, key_index, mac_addr, params->cipher);
2410
2411 switch (params->cipher) {
2412 case WLAN_CIPHER_SUITE_WEP40:
2413 case WLAN_CIPHER_SUITE_WEP104:
2414 return add_wep_key(usbdev, params->key, params->key_len,
2415 key_index);
2416 case WLAN_CIPHER_SUITE_TKIP:
2417 case WLAN_CIPHER_SUITE_CCMP:
2418 flags = 0;
2419
2420 if (params->seq && params->seq_len > 0)
2421 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2422 if (mac_addr)
2423 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2424 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2425
2426 return add_wpa_key(usbdev, params->key, params->key_len,
2427 key_index, mac_addr, params->seq,
2428 params->seq_len, params->cipher, flags);
2429 default:
2430 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2431 __func__, params->cipher);
2432 return -ENOTSUPP;
2433 }
2434}
2435
2436static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2437 u8 key_index, bool pairwise, const u8 *mac_addr)
2438{
2439 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2440 struct usbnet *usbdev = priv->usbdev;
2441
2442 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2443
2444 return remove_key(usbdev, key_index, mac_addr);
2445}
2446
2447static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2448 u8 key_index, bool unicast, bool multicast)
2449{
2450 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2451 struct usbnet *usbdev = priv->usbdev;
2452 struct rndis_wlan_encr_key key;
2453
2454 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2455
2456 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2457 return -ENOENT;
2458
2459 priv->encr_tx_key_index = key_index;
2460
2461 if (is_wpa_key(priv, key_index))
2462 return 0;
2463
2464 key = priv->encr_keys[key_index];
2465
2466 return add_wep_key(usbdev, key.material, key.len, key_index);
2467}
2468
2469static void rndis_fill_station_info(struct usbnet *usbdev,
2470 struct station_info *sinfo)
2471{
2472 __le32 linkspeed, rssi;
2473 int ret, len;
2474
2475 memset(sinfo, 0, sizeof(*sinfo));
2476
2477 len = sizeof(linkspeed);
2478 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2479 if (ret == 0) {
2480 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2481 sinfo->filled |= STATION_INFO_TX_BITRATE;
2482 }
2483
2484 len = sizeof(rssi);
2485 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2486 &rssi, &len);
2487 if (ret == 0) {
2488 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2489 sinfo->filled |= STATION_INFO_SIGNAL;
2490 }
2491}
2492
2493static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2494 u8 *mac, struct station_info *sinfo)
2495{
2496 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2497 struct usbnet *usbdev = priv->usbdev;
2498
2499 if (!ether_addr_equal(priv->bssid, mac))
2500 return -ENOENT;
2501
2502 rndis_fill_station_info(usbdev, sinfo);
2503
2504 return 0;
2505}
2506
2507static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2508 int idx, u8 *mac, struct station_info *sinfo)
2509{
2510 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2511 struct usbnet *usbdev = priv->usbdev;
2512
2513 if (idx != 0)
2514 return -ENOENT;
2515
2516 memcpy(mac, priv->bssid, ETH_ALEN);
2517
2518 rndis_fill_station_info(usbdev, sinfo);
2519
2520 return 0;
2521}
2522
2523static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2524 struct cfg80211_pmksa *pmksa)
2525{
2526 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2527 struct usbnet *usbdev = priv->usbdev;
2528 struct ndis_80211_pmkid *pmkids;
2529 u32 *tmp = (u32 *)pmksa->pmkid;
2530
2531 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2532 pmksa->bssid,
2533 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2534 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2535
2536 pmkids = get_device_pmkids(usbdev);
2537 if (IS_ERR(pmkids)) {
2538
2539 return PTR_ERR(pmkids);
2540 }
2541
2542 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2543 if (IS_ERR(pmkids)) {
2544
2545 return PTR_ERR(pmkids);
2546 }
2547
2548 return set_device_pmkids(usbdev, pmkids);
2549}
2550
2551static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2552 struct cfg80211_pmksa *pmksa)
2553{
2554 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2555 struct usbnet *usbdev = priv->usbdev;
2556 struct ndis_80211_pmkid *pmkids;
2557 u32 *tmp = (u32 *)pmksa->pmkid;
2558
2559 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2560 pmksa->bssid,
2561 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2562 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2563
2564 pmkids = get_device_pmkids(usbdev);
2565 if (IS_ERR(pmkids)) {
2566
2567 return PTR_ERR(pmkids);
2568 }
2569
2570 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2571 if (IS_ERR(pmkids)) {
2572
2573 return PTR_ERR(pmkids);
2574 }
2575
2576 return set_device_pmkids(usbdev, pmkids);
2577}
2578
2579static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2580{
2581 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2582 struct usbnet *usbdev = priv->usbdev;
2583 struct ndis_80211_pmkid pmkid;
2584
2585 netdev_dbg(usbdev->net, "%s()\n", __func__);
2586
2587 memset(&pmkid, 0, sizeof(pmkid));
2588
2589 pmkid.length = cpu_to_le32(sizeof(pmkid));
2590 pmkid.bssid_info_count = cpu_to_le32(0);
2591
2592 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2593 &pmkid, sizeof(pmkid));
2594}
2595
2596static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2597 bool enabled, int timeout)
2598{
2599 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2600 struct usbnet *usbdev = priv->usbdev;
2601 int power_mode;
2602 __le32 mode;
2603 int ret;
2604
2605 if (priv->device_type != RNDIS_BCM4320B)
2606 return -ENOTSUPP;
2607
2608 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2609 enabled ? "enabled" : "disabled",
2610 timeout);
2611
2612 if (enabled)
2613 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2614 else
2615 power_mode = NDIS_80211_POWER_MODE_CAM;
2616
2617 if (power_mode == priv->power_mode)
2618 return 0;
2619
2620 priv->power_mode = power_mode;
2621
2622 mode = cpu_to_le32(power_mode);
2623 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2624 &mode, sizeof(mode));
2625
2626 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2627 __func__, ret);
2628
2629 return ret;
2630}
2631
2632static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2633 struct net_device *dev,
2634 s32 rssi_thold, u32 rssi_hyst)
2635{
2636 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2637
2638 priv->cqm_rssi_thold = rssi_thold;
2639 priv->cqm_rssi_hyst = rssi_hyst;
2640 priv->last_cqm_event_rssi = 0;
2641
2642 return 0;
2643}
2644
2645static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2646 struct ndis_80211_assoc_info *info)
2647{
2648 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2649 struct ieee80211_channel *channel;
2650 struct ndis_80211_ssid ssid;
2651 struct cfg80211_bss *bss;
2652 s32 signal;
2653 u64 timestamp;
2654 u16 capability;
2655 u32 beacon_period = 0;
2656 __le32 rssi;
2657 u8 ie_buf[34];
2658 int len, ret, ie_len;
2659
2660
2661 len = sizeof(rssi);
2662 rssi = 0;
2663 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2664 &rssi, &len);
2665 signal = level_to_qual(le32_to_cpu(rssi));
2666
2667 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2668 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2669 level_to_qual(le32_to_cpu(rssi)));
2670
2671
2672 if (info) {
2673 capability = le16_to_cpu(info->resp_ie.capa);
2674 } else {
2675
2676 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2677 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2678 }
2679
2680
2681 channel = get_current_channel(usbdev, &beacon_period);
2682 if (!channel) {
2683 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2684 __func__);
2685 return;
2686 }
2687
2688
2689 len = sizeof(ssid);
2690 memset(&ssid, 0, sizeof(ssid));
2691 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2692 &ssid, &len);
2693 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2694 "'%.32s'\n", __func__, ret,
2695 le32_to_cpu(ssid.length), ssid.essid);
2696
2697 if (le32_to_cpu(ssid.length) > 32)
2698 ssid.length = cpu_to_le32(32);
2699
2700 ie_buf[0] = WLAN_EID_SSID;
2701 ie_buf[1] = le32_to_cpu(ssid.length);
2702 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2703
2704 ie_len = le32_to_cpu(ssid.length) + 2;
2705
2706
2707 timestamp = 0;
2708
2709 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2710 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2711 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2712 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2713 ssid.essid, signal);
2714
2715 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2716 timestamp, capability, beacon_period, ie_buf, ie_len,
2717 signal, GFP_KERNEL);
2718 cfg80211_put_bss(bss);
2719}
2720
2721
2722
2723
2724static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2725{
2726 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2727 struct ndis_80211_assoc_info *info = NULL;
2728 u8 bssid[ETH_ALEN];
2729 unsigned int resp_ie_len, req_ie_len;
2730 unsigned int offset;
2731 u8 *req_ie, *resp_ie;
2732 int ret;
2733 bool roamed = false;
2734 bool match_bss;
2735
2736 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2737
2738
2739 roamed = true;
2740 }
2741
2742 req_ie_len = 0;
2743 resp_ie_len = 0;
2744 req_ie = NULL;
2745 resp_ie = NULL;
2746
2747 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2748 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2749 if (!info) {
2750
2751 set_bit(WORK_LINK_UP, &priv->work_pending);
2752 queue_work(priv->workqueue, &priv->work);
2753 return;
2754 }
2755
2756
2757 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2758 if (!ret) {
2759 req_ie_len = le32_to_cpu(info->req_ie_length);
2760 if (req_ie_len > CONTROL_BUFFER_SIZE)
2761 req_ie_len = CONTROL_BUFFER_SIZE;
2762 if (req_ie_len != 0) {
2763 offset = le32_to_cpu(info->offset_req_ies);
2764
2765 if (offset > CONTROL_BUFFER_SIZE)
2766 offset = CONTROL_BUFFER_SIZE;
2767
2768 req_ie = (u8 *)info + offset;
2769
2770 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2771 req_ie_len =
2772 CONTROL_BUFFER_SIZE - offset;
2773 }
2774
2775 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2776 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2777 resp_ie_len = CONTROL_BUFFER_SIZE;
2778 if (resp_ie_len != 0) {
2779 offset = le32_to_cpu(info->offset_resp_ies);
2780
2781 if (offset > CONTROL_BUFFER_SIZE)
2782 offset = CONTROL_BUFFER_SIZE;
2783
2784 resp_ie = (u8 *)info + offset;
2785
2786 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2787 resp_ie_len =
2788 CONTROL_BUFFER_SIZE - offset;
2789 }
2790 } else {
2791
2792
2793
2794
2795 kfree(info);
2796 info = NULL;
2797 }
2798 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2799 return;
2800
2801 ret = get_bssid(usbdev, bssid);
2802 if (ret < 0)
2803 memset(bssid, 0, sizeof(bssid));
2804
2805 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2806 bssid, roamed ? " roamed" : "");
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819 match_bss = false;
2820 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2821
2822 if (!is_zero_ether_addr(bssid) && !match_bss) {
2823
2824
2825
2826 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2827 }
2828
2829 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2830 if (!roamed)
2831 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2832 req_ie_len, resp_ie,
2833 resp_ie_len, 0, GFP_KERNEL);
2834 else
2835 cfg80211_roamed(usbdev->net,
2836 get_current_channel(usbdev, NULL),
2837 bssid, req_ie, req_ie_len,
2838 resp_ie, resp_ie_len, GFP_KERNEL);
2839 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2840 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2841
2842 if (info != NULL)
2843 kfree(info);
2844
2845 priv->connected = true;
2846 memcpy(priv->bssid, bssid, ETH_ALEN);
2847
2848 usbnet_resume_rx(usbdev);
2849 netif_carrier_on(usbdev->net);
2850}
2851
2852static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2853{
2854 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2855
2856 if (priv->connected) {
2857 priv->connected = false;
2858 memset(priv->bssid, 0, ETH_ALEN);
2859
2860 deauthenticate(usbdev);
2861
2862 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2863 }
2864
2865 netif_carrier_off(usbdev->net);
2866}
2867
2868static void rndis_wlan_worker(struct work_struct *work)
2869{
2870 struct rndis_wlan_private *priv =
2871 container_of(work, struct rndis_wlan_private, work);
2872 struct usbnet *usbdev = priv->usbdev;
2873
2874 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2875 rndis_wlan_do_link_up_work(usbdev);
2876
2877 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2878 rndis_wlan_do_link_down_work(usbdev);
2879
2880 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2881 set_multicast_list(usbdev);
2882}
2883
2884static void rndis_wlan_set_multicast_list(struct net_device *dev)
2885{
2886 struct usbnet *usbdev = netdev_priv(dev);
2887 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2888
2889 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2890 return;
2891
2892 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2893 queue_work(priv->workqueue, &priv->work);
2894}
2895
2896static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2897 struct ndis_80211_status_indication *indication,
2898 int len)
2899{
2900 u8 *buf;
2901 const char *type;
2902 int flags, buflen, key_id;
2903 bool pairwise_error, group_error;
2904 struct ndis_80211_auth_request *auth_req;
2905 enum nl80211_key_type key_type;
2906
2907
2908 if (len < offsetof(struct ndis_80211_status_indication, u) +
2909 sizeof(struct ndis_80211_auth_request)) {
2910 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2911 len);
2912 return;
2913 }
2914
2915 buf = (void *)&indication->u.auth_request[0];
2916 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2917
2918 while (buflen >= sizeof(*auth_req)) {
2919 auth_req = (void *)buf;
2920 type = "unknown";
2921 flags = le32_to_cpu(auth_req->flags);
2922 pairwise_error = false;
2923 group_error = false;
2924
2925 if (flags & 0x1)
2926 type = "reauth request";
2927 if (flags & 0x2)
2928 type = "key update request";
2929 if (flags & 0x6) {
2930 pairwise_error = true;
2931 type = "pairwise_error";
2932 }
2933 if (flags & 0xe) {
2934 group_error = true;
2935 type = "group_error";
2936 }
2937
2938 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2939 type, le32_to_cpu(auth_req->flags));
2940
2941 if (pairwise_error) {
2942 key_type = NL80211_KEYTYPE_PAIRWISE;
2943 key_id = -1;
2944
2945 cfg80211_michael_mic_failure(usbdev->net,
2946 auth_req->bssid,
2947 key_type, key_id, NULL,
2948 GFP_KERNEL);
2949 }
2950
2951 if (group_error) {
2952 key_type = NL80211_KEYTYPE_GROUP;
2953 key_id = -1;
2954
2955 cfg80211_michael_mic_failure(usbdev->net,
2956 auth_req->bssid,
2957 key_type, key_id, NULL,
2958 GFP_KERNEL);
2959 }
2960
2961 buflen -= le32_to_cpu(auth_req->length);
2962 buf += le32_to_cpu(auth_req->length);
2963 }
2964}
2965
2966static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2967 struct ndis_80211_status_indication *indication,
2968 int len)
2969{
2970 struct ndis_80211_pmkid_cand_list *cand_list;
2971 int list_len, expected_len, i;
2972
2973 if (len < offsetof(struct ndis_80211_status_indication, u) +
2974 sizeof(struct ndis_80211_pmkid_cand_list)) {
2975 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2976 len);
2977 return;
2978 }
2979
2980 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2981 sizeof(struct ndis_80211_pmkid_candidate);
2982 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2983 offsetof(struct ndis_80211_status_indication, u);
2984
2985 if (len < expected_len) {
2986 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2987 len, expected_len);
2988 return;
2989 }
2990
2991 cand_list = &indication->u.cand_list;
2992
2993 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2994 le32_to_cpu(cand_list->version),
2995 le32_to_cpu(cand_list->num_candidates));
2996
2997 if (le32_to_cpu(cand_list->version) != 1)
2998 return;
2999
3000 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3001 struct ndis_80211_pmkid_candidate *cand =
3002 &cand_list->candidate_list[i];
3003 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3004
3005 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3006 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3007
3008 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3009 preauth, GFP_ATOMIC);
3010 }
3011}
3012
3013static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3014 struct rndis_indicate *msg, int buflen)
3015{
3016 struct ndis_80211_status_indication *indication;
3017 unsigned int len, offset;
3018
3019 offset = offsetof(struct rndis_indicate, status) +
3020 le32_to_cpu(msg->offset);
3021 len = le32_to_cpu(msg->length);
3022
3023 if (len < 8) {
3024 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3025 len);
3026 return;
3027 }
3028
3029 if (len > buflen || offset > buflen || offset + len > buflen) {
3030 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3031 offset + len, buflen);
3032 return;
3033 }
3034
3035 indication = (void *)((u8 *)msg + offset);
3036
3037 switch (le32_to_cpu(indication->status_type)) {
3038 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3039 netdev_info(usbdev->net, "radio state indication: %i\n",
3040 le32_to_cpu(indication->u.radio_status));
3041 return;
3042
3043 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3044 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3045 le32_to_cpu(indication->u.media_stream_mode));
3046 return;
3047
3048 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3049 rndis_wlan_auth_indication(usbdev, indication, len);
3050 return;
3051
3052 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3053 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3054 return;
3055
3056 default:
3057 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3058 le32_to_cpu(indication->status_type));
3059 }
3060}
3061
3062static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3063{
3064 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3065 struct rndis_indicate *msg = ind;
3066
3067 switch (le32_to_cpu(msg->status)) {
3068 case RNDIS_STATUS_MEDIA_CONNECT:
3069 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3070
3071
3072
3073
3074
3075 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3076 return;
3077 }
3078
3079 usbnet_pause_rx(usbdev);
3080
3081 netdev_info(usbdev->net, "media connect\n");
3082
3083
3084 set_bit(WORK_LINK_UP, &priv->work_pending);
3085 queue_work(priv->workqueue, &priv->work);
3086 break;
3087
3088 case RNDIS_STATUS_MEDIA_DISCONNECT:
3089 netdev_info(usbdev->net, "media disconnect\n");
3090
3091
3092 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3093 queue_work(priv->workqueue, &priv->work);
3094 break;
3095
3096 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3097 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3098 break;
3099
3100 default:
3101 netdev_info(usbdev->net, "indication: 0x%08x\n",
3102 le32_to_cpu(msg->status));
3103 break;
3104 }
3105}
3106
3107static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3108{
3109 struct {
3110 __le32 num_items;
3111 __le32 items[8];
3112 } networks_supported;
3113 struct ndis_80211_capability *caps;
3114 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3115 int len, retval, i, n;
3116 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3117
3118
3119 len = sizeof(networks_supported);
3120 retval = rndis_query_oid(usbdev,
3121 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3122 &networks_supported, &len);
3123 if (retval >= 0) {
3124 n = le32_to_cpu(networks_supported.num_items);
3125 if (n > 8)
3126 n = 8;
3127 for (i = 0; i < n; i++) {
3128 switch (le32_to_cpu(networks_supported.items[i])) {
3129 case NDIS_80211_TYPE_FREQ_HOP:
3130 case NDIS_80211_TYPE_DIRECT_SEQ:
3131 priv->caps |= CAP_MODE_80211B;
3132 break;
3133 case NDIS_80211_TYPE_OFDM_A:
3134 priv->caps |= CAP_MODE_80211A;
3135 break;
3136 case NDIS_80211_TYPE_OFDM_G:
3137 priv->caps |= CAP_MODE_80211G;
3138 break;
3139 }
3140 }
3141 }
3142
3143
3144 caps = (struct ndis_80211_capability *)caps_buf;
3145 len = sizeof(caps_buf);
3146 retval = rndis_query_oid(usbdev,
3147 RNDIS_OID_802_11_CAPABILITY,
3148 caps, &len);
3149 if (retval >= 0) {
3150 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3151 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3152 le32_to_cpu(caps->length),
3153 le32_to_cpu(caps->version),
3154 le32_to_cpu(caps->num_pmkids),
3155 le32_to_cpu(caps->num_auth_encr_pair));
3156 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3157 } else
3158 wiphy->max_num_pmkids = 0;
3159
3160 return retval;
3161}
3162
3163static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3164{
3165 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3166 enum nl80211_cqm_rssi_threshold_event event;
3167 int thold, hyst, last_event;
3168
3169 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3170 return;
3171 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3172 return;
3173
3174 last_event = priv->last_cqm_event_rssi;
3175 thold = priv->cqm_rssi_thold;
3176 hyst = priv->cqm_rssi_hyst;
3177
3178 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3179 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3180 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3181 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3182 else
3183 return;
3184
3185 priv->last_cqm_event_rssi = rssi;
3186 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3187}
3188
3189#define DEVICE_POLLER_JIFFIES (HZ)
3190static void rndis_device_poller(struct work_struct *work)
3191{
3192 struct rndis_wlan_private *priv =
3193 container_of(work, struct rndis_wlan_private,
3194 dev_poller_work.work);
3195 struct usbnet *usbdev = priv->usbdev;
3196 __le32 rssi, tmp;
3197 int len, ret, j;
3198 int update_jiffies = DEVICE_POLLER_JIFFIES;
3199 void *buf;
3200
3201
3202
3203
3204
3205 if (!is_associated(usbdev)) {
3206
3207
3208
3209 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3210 !priv->scan_request) {
3211
3212 rndis_check_bssid_list(usbdev, NULL, NULL);
3213
3214
3215 rndis_start_bssid_list_scan(usbdev);
3216 }
3217
3218 goto end;
3219 }
3220
3221 len = sizeof(rssi);
3222 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3223 &rssi, &len);
3224 if (ret == 0) {
3225 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3226 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3227 }
3228
3229 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3230 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3231
3232
3233
3234
3235 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3236
3237
3238
3239
3240 j = msecs_to_jiffies(priv->param_workaround_interval);
3241 if (j > DEVICE_POLLER_JIFFIES)
3242 j = DEVICE_POLLER_JIFFIES;
3243 else if (j <= 0)
3244 j = 1;
3245 update_jiffies = j;
3246
3247
3248
3249
3250 tmp = cpu_to_le32(1);
3251 rndis_set_oid(usbdev,
3252 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3253 &tmp, sizeof(tmp));
3254
3255 len = CONTROL_BUFFER_SIZE;
3256 buf = kmalloc(len, GFP_KERNEL);
3257 if (!buf)
3258 goto end;
3259
3260 rndis_query_oid(usbdev,
3261 RNDIS_OID_802_11_BSSID_LIST,
3262 buf, &len);
3263 kfree(buf);
3264 }
3265
3266end:
3267 if (update_jiffies >= HZ)
3268 update_jiffies = round_jiffies_relative(update_jiffies);
3269 else {
3270 j = round_jiffies_relative(update_jiffies);
3271 if (abs(j - update_jiffies) <= 10)
3272 update_jiffies = j;
3273 }
3274
3275 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3276 update_jiffies);
3277}
3278
3279
3280
3281
3282static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3283{
3284 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3285
3286 priv->device_type = device_type;
3287
3288 priv->param_country[0] = modparam_country[0];
3289 priv->param_country[1] = modparam_country[1];
3290 priv->param_country[2] = 0;
3291 priv->param_frameburst = modparam_frameburst;
3292 priv->param_afterburner = modparam_afterburner;
3293 priv->param_power_save = modparam_power_save;
3294 priv->param_power_output = modparam_power_output;
3295 priv->param_roamtrigger = modparam_roamtrigger;
3296 priv->param_roamdelta = modparam_roamdelta;
3297
3298 priv->param_country[0] = toupper(priv->param_country[0]);
3299 priv->param_country[1] = toupper(priv->param_country[1]);
3300
3301 if (!strcmp(priv->param_country, "EU"))
3302 strcpy(priv->param_country, "FI");
3303
3304 if (priv->param_power_save < 0)
3305 priv->param_power_save = 0;
3306 else if (priv->param_power_save > 2)
3307 priv->param_power_save = 2;
3308
3309 if (priv->param_power_output < 0)
3310 priv->param_power_output = 0;
3311 else if (priv->param_power_output > 3)
3312 priv->param_power_output = 3;
3313
3314 if (priv->param_roamtrigger < -80)
3315 priv->param_roamtrigger = -80;
3316 else if (priv->param_roamtrigger > -60)
3317 priv->param_roamtrigger = -60;
3318
3319 if (priv->param_roamdelta < 0)
3320 priv->param_roamdelta = 0;
3321 else if (priv->param_roamdelta > 2)
3322 priv->param_roamdelta = 2;
3323
3324 if (modparam_workaround_interval < 0)
3325 priv->param_workaround_interval = 500;
3326 else
3327 priv->param_workaround_interval = modparam_workaround_interval;
3328}
3329
3330static int unknown_early_init(struct usbnet *usbdev)
3331{
3332
3333
3334
3335 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3336
3337
3338
3339
3340 return 0;
3341}
3342
3343static int bcm4320a_early_init(struct usbnet *usbdev)
3344{
3345
3346
3347
3348 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3349
3350
3351
3352
3353
3354 return 0;
3355}
3356
3357static int bcm4320b_early_init(struct usbnet *usbdev)
3358{
3359 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3360 char buf[8];
3361
3362 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3363
3364
3365
3366
3367
3368 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3369 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3370 priv->param_frameburst ? "1" : "0");
3371 rndis_set_config_parameter_str(usbdev, "Afterburner",
3372 priv->param_afterburner ? "1" : "0");
3373 sprintf(buf, "%d", priv->param_power_save);
3374 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3375 sprintf(buf, "%d", priv->param_power_output);
3376 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3377 sprintf(buf, "%d", priv->param_roamtrigger);
3378 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3379 sprintf(buf, "%d", priv->param_roamdelta);
3380 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3381
3382 return 0;
3383}
3384
3385
3386static const struct net_device_ops rndis_wlan_netdev_ops = {
3387 .ndo_open = usbnet_open,
3388 .ndo_stop = usbnet_stop,
3389 .ndo_start_xmit = usbnet_start_xmit,
3390 .ndo_tx_timeout = usbnet_tx_timeout,
3391 .ndo_set_mac_address = eth_mac_addr,
3392 .ndo_validate_addr = eth_validate_addr,
3393 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3394};
3395
3396static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3397{
3398 struct wiphy *wiphy;
3399 struct rndis_wlan_private *priv;
3400 int retval, len;
3401 __le32 tmp;
3402
3403
3404
3405
3406
3407 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3408 if (!wiphy)
3409 return -ENOMEM;
3410
3411 priv = wiphy_priv(wiphy);
3412 usbdev->net->ieee80211_ptr = &priv->wdev;
3413 priv->wdev.wiphy = wiphy;
3414 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3415
3416
3417
3418
3419 usbdev->driver_priv = priv;
3420 priv->usbdev = usbdev;
3421
3422 mutex_init(&priv->command_lock);
3423
3424
3425 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3426 INIT_WORK(&priv->work, rndis_wlan_worker);
3427 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3428 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3429
3430
3431 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3432 if (retval < 0)
3433 goto fail;
3434
3435
3436
3437
3438
3439
3440
3441
3442 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3443
3444 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3445 retval = rndis_set_oid(usbdev,
3446 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3447 &tmp, sizeof(tmp));
3448
3449 len = sizeof(tmp);
3450 retval = rndis_query_oid(usbdev,
3451 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3452 &tmp, &len);
3453 priv->multicast_size = le32_to_cpu(tmp);
3454 if (retval < 0 || priv->multicast_size < 0)
3455 priv->multicast_size = 0;
3456 if (priv->multicast_size > 0)
3457 usbdev->net->flags |= IFF_MULTICAST;
3458 else
3459 usbdev->net->flags &= ~IFF_MULTICAST;
3460
3461
3462 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3463 wiphy->privid = rndis_wiphy_privid;
3464 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3465 | BIT(NL80211_IFTYPE_ADHOC);
3466 wiphy->max_scan_ssids = 1;
3467
3468
3469 rndis_wlan_get_caps(usbdev, wiphy);
3470
3471 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3472 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3473 priv->band.channels = priv->channels;
3474 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3475 priv->band.bitrates = priv->rates;
3476 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3477 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3478 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3479
3480 memcpy(priv->cipher_suites, rndis_cipher_suites,
3481 sizeof(rndis_cipher_suites));
3482 wiphy->cipher_suites = priv->cipher_suites;
3483 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3484
3485 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3486
3487 if (wiphy_register(wiphy)) {
3488 retval = -ENODEV;
3489 goto fail;
3490 }
3491
3492 set_default_iw_params(usbdev);
3493
3494 priv->power_mode = -1;
3495
3496
3497 rndis_set_wiphy_params(wiphy,
3498 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3499
3500
3501 priv->radio_on = false;
3502 disassociate(usbdev, false);
3503 netif_carrier_off(usbdev->net);
3504
3505 return 0;
3506
3507fail:
3508 cancel_delayed_work_sync(&priv->dev_poller_work);
3509 cancel_delayed_work_sync(&priv->scan_work);
3510 cancel_work_sync(&priv->work);
3511 flush_workqueue(priv->workqueue);
3512 destroy_workqueue(priv->workqueue);
3513
3514 wiphy_free(wiphy);
3515 return retval;
3516}
3517
3518static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3519{
3520 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3521
3522
3523 disassociate(usbdev, false);
3524
3525 cancel_delayed_work_sync(&priv->dev_poller_work);
3526 cancel_delayed_work_sync(&priv->scan_work);
3527 cancel_work_sync(&priv->work);
3528 flush_workqueue(priv->workqueue);
3529 destroy_workqueue(priv->workqueue);
3530
3531 rndis_unbind(usbdev, intf);
3532
3533 wiphy_unregister(priv->wdev.wiphy);
3534 wiphy_free(priv->wdev.wiphy);
3535}
3536
3537static int rndis_wlan_reset(struct usbnet *usbdev)
3538{
3539 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3540 int retval;
3541
3542 netdev_dbg(usbdev->net, "%s()\n", __func__);
3543
3544 retval = rndis_reset(usbdev);
3545 if (retval)
3546 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3547
3548
3549
3550 set_multicast_list(usbdev);
3551
3552 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3553 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3554
3555 return deauthenticate(usbdev);
3556}
3557
3558static int rndis_wlan_stop(struct usbnet *usbdev)
3559{
3560 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3561 int retval;
3562 __le32 filter;
3563
3564 netdev_dbg(usbdev->net, "%s()\n", __func__);
3565
3566 retval = disassociate(usbdev, false);
3567
3568 priv->work_pending = 0;
3569 cancel_delayed_work_sync(&priv->dev_poller_work);
3570 cancel_delayed_work_sync(&priv->scan_work);
3571 cancel_work_sync(&priv->work);
3572 flush_workqueue(priv->workqueue);
3573
3574 if (priv->scan_request) {
3575 cfg80211_scan_done(priv->scan_request, true);
3576 priv->scan_request = NULL;
3577 }
3578
3579
3580
3581 filter = 0;
3582 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3583 sizeof(filter));
3584
3585 return retval;
3586}
3587
3588static const struct driver_info bcm4320b_info = {
3589 .description = "Wireless RNDIS device, BCM4320b based",
3590 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3591 FLAG_AVOID_UNLINK_URBS,
3592 .bind = rndis_wlan_bind,
3593 .unbind = rndis_wlan_unbind,
3594 .status = rndis_status,
3595 .rx_fixup = rndis_rx_fixup,
3596 .tx_fixup = rndis_tx_fixup,
3597 .reset = rndis_wlan_reset,
3598 .stop = rndis_wlan_stop,
3599 .early_init = bcm4320b_early_init,
3600 .indication = rndis_wlan_indication,
3601};
3602
3603static const struct driver_info bcm4320a_info = {
3604 .description = "Wireless RNDIS device, BCM4320a based",
3605 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3606 FLAG_AVOID_UNLINK_URBS,
3607 .bind = rndis_wlan_bind,
3608 .unbind = rndis_wlan_unbind,
3609 .status = rndis_status,
3610 .rx_fixup = rndis_rx_fixup,
3611 .tx_fixup = rndis_tx_fixup,
3612 .reset = rndis_wlan_reset,
3613 .stop = rndis_wlan_stop,
3614 .early_init = bcm4320a_early_init,
3615 .indication = rndis_wlan_indication,
3616};
3617
3618static const struct driver_info rndis_wlan_info = {
3619 .description = "Wireless RNDIS device",
3620 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3621 FLAG_AVOID_UNLINK_URBS,
3622 .bind = rndis_wlan_bind,
3623 .unbind = rndis_wlan_unbind,
3624 .status = rndis_status,
3625 .rx_fixup = rndis_rx_fixup,
3626 .tx_fixup = rndis_tx_fixup,
3627 .reset = rndis_wlan_reset,
3628 .stop = rndis_wlan_stop,
3629 .early_init = unknown_early_init,
3630 .indication = rndis_wlan_indication,
3631};
3632
3633
3634
3635static const struct usb_device_id products [] = {
3636#define RNDIS_MASTER_INTERFACE \
3637 .bInterfaceClass = USB_CLASS_COMM, \
3638 .bInterfaceSubClass = 2 , \
3639 .bInterfaceProtocol = 0x0ff
3640
3641
3642
3643
3644{
3645 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3646 | USB_DEVICE_ID_MATCH_DEVICE,
3647 .idVendor = 0x0411,
3648 .idProduct = 0x00bc,
3649 RNDIS_MASTER_INTERFACE,
3650 .driver_info = (unsigned long) &bcm4320b_info,
3651}, {
3652 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3653 | USB_DEVICE_ID_MATCH_DEVICE,
3654 .idVendor = 0x0baf,
3655 .idProduct = 0x011b,
3656 RNDIS_MASTER_INTERFACE,
3657 .driver_info = (unsigned long) &bcm4320b_info,
3658}, {
3659 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3660 | USB_DEVICE_ID_MATCH_DEVICE,
3661 .idVendor = 0x050d,
3662 .idProduct = 0x011b,
3663 RNDIS_MASTER_INTERFACE,
3664 .driver_info = (unsigned long) &bcm4320b_info,
3665}, {
3666 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3667 | USB_DEVICE_ID_MATCH_DEVICE,
3668 .idVendor = 0x1799,
3669 .idProduct = 0x011b,
3670 RNDIS_MASTER_INTERFACE,
3671 .driver_info = (unsigned long) &bcm4320b_info,
3672}, {
3673 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3674 | USB_DEVICE_ID_MATCH_DEVICE,
3675 .idVendor = 0x13b1,
3676 .idProduct = 0x0014,
3677 RNDIS_MASTER_INTERFACE,
3678 .driver_info = (unsigned long) &bcm4320b_info,
3679}, {
3680 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3681 | USB_DEVICE_ID_MATCH_DEVICE,
3682 .idVendor = 0x13b1,
3683 .idProduct = 0x0026,
3684 RNDIS_MASTER_INTERFACE,
3685 .driver_info = (unsigned long) &bcm4320b_info,
3686}, {
3687 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3688 | USB_DEVICE_ID_MATCH_DEVICE,
3689 .idVendor = 0x0b05,
3690 .idProduct = 0x1717,
3691 RNDIS_MASTER_INTERFACE,
3692 .driver_info = (unsigned long) &bcm4320b_info,
3693}, {
3694 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3695 | USB_DEVICE_ID_MATCH_DEVICE,
3696 .idVendor = 0x0a5c,
3697 .idProduct = 0xd11b,
3698 RNDIS_MASTER_INTERFACE,
3699 .driver_info = (unsigned long) &bcm4320b_info,
3700}, {
3701 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3702 | USB_DEVICE_ID_MATCH_DEVICE,
3703 .idVendor = 0x1690,
3704 .idProduct = 0x0715,
3705 RNDIS_MASTER_INTERFACE,
3706 .driver_info = (unsigned long) &bcm4320b_info,
3707},
3708
3709
3710
3711
3712{
3713 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3714 | USB_DEVICE_ID_MATCH_DEVICE,
3715 .idVendor = 0x13b1,
3716 .idProduct = 0x000e,
3717 RNDIS_MASTER_INTERFACE,
3718 .driver_info = (unsigned long) &bcm4320a_info,
3719}, {
3720 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3721 | USB_DEVICE_ID_MATCH_DEVICE,
3722 .idVendor = 0x0baf,
3723 .idProduct = 0x0111,
3724 RNDIS_MASTER_INTERFACE,
3725 .driver_info = (unsigned long) &bcm4320a_info,
3726}, {
3727 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3728 | USB_DEVICE_ID_MATCH_DEVICE,
3729 .idVendor = 0x0411,
3730 .idProduct = 0x004b,
3731 RNDIS_MASTER_INTERFACE,
3732 .driver_info = (unsigned long) &bcm4320a_info,
3733},
3734
3735
3736
3737{
3738
3739 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 , 0x0ff),
3740 .driver_info = (unsigned long) &rndis_wlan_info,
3741}, {
3742
3743 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3744 .driver_info = (unsigned long) &rndis_wlan_info,
3745},
3746 { },
3747};
3748MODULE_DEVICE_TABLE(usb, products);
3749
3750static struct usb_driver rndis_wlan_driver = {
3751 .name = "rndis_wlan",
3752 .id_table = products,
3753 .probe = usbnet_probe,
3754 .disconnect = usbnet_disconnect,
3755 .suspend = usbnet_suspend,
3756 .resume = usbnet_resume,
3757 .disable_hub_initiated_lpm = 1,
3758};
3759
3760module_usb_driver(rndis_wlan_driver);
3761
3762MODULE_AUTHOR("Bjorge Dijkstra");
3763MODULE_AUTHOR("Jussi Kivilinna");
3764MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3765MODULE_LICENSE("GPL");
3766
3767
