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28#include <linux/module.h>
29#include <linux/netdevice.h>
30#include <linux/etherdevice.h>
31#include <linux/ethtool.h>
32#include <linux/workqueue.h>
33#include <linux/mutex.h>
34#include <linux/mii.h>
35#include <linux/usb.h>
36#include <linux/usb/cdc.h>
37#include <linux/ieee80211.h>
38#include <linux/if_arp.h>
39#include <linux/ctype.h>
40#include <linux/spinlock.h>
41#include <linux/slab.h>
42#include <net/cfg80211.h>
43#include <linux/usb/usbnet.h>
44#include <linux/usb/rndis_host.h>
45
46
47
48static char modparam_country[4] = "EU";
49module_param_string(country, modparam_country, 4, 0444);
50MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
51
52static int modparam_frameburst = 1;
53module_param_named(frameburst, modparam_frameburst, int, 0444);
54MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
55
56static int modparam_afterburner = 0;
57module_param_named(afterburner, modparam_afterburner, int, 0444);
58MODULE_PARM_DESC(afterburner,
59 "enable afterburner aka '125 High Speed Mode' (default: off)");
60
61static int modparam_power_save = 0;
62module_param_named(power_save, modparam_power_save, int, 0444);
63MODULE_PARM_DESC(power_save,
64 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
65
66static int modparam_power_output = 3;
67module_param_named(power_output, modparam_power_output, int, 0444);
68MODULE_PARM_DESC(power_output,
69 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
70
71static int modparam_roamtrigger = -70;
72module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
73MODULE_PARM_DESC(roamtrigger,
74 "set roaming dBm trigger: -80=optimize for distance, "
75 "-60=bandwidth (default: -70)");
76
77static int modparam_roamdelta = 1;
78module_param_named(roamdelta, modparam_roamdelta, int, 0444);
79MODULE_PARM_DESC(roamdelta,
80 "set roaming tendency: 0=aggressive, 1=moderate, "
81 "2=conservative (default: moderate)");
82
83static int modparam_workaround_interval;
84module_param_named(workaround_interval, modparam_workaround_interval,
85 int, 0444);
86MODULE_PARM_DESC(workaround_interval,
87 "set stall workaround interval in msecs (0=disabled) (default: 0)");
88
89
90#define WL_NOISE -96
91#define WL_SIGMAX -32
92
93
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99
100
101
102#define BCM4320_DEFAULT_TXPOWER_DBM_100 13
103#define BCM4320_DEFAULT_TXPOWER_DBM_75 12
104#define BCM4320_DEFAULT_TXPOWER_DBM_50 10
105#define BCM4320_DEFAULT_TXPOWER_DBM_25 7
106
107
108#define RNDIS_UNKNOWN 0
109#define RNDIS_BCM4320A 1
110#define RNDIS_BCM4320B 2
111
112
113
114
115
116#define NDIS_802_11_LENGTH_SSID 32
117#define NDIS_802_11_LENGTH_RATES 8
118#define NDIS_802_11_LENGTH_RATES_EX 16
119
120enum ndis_80211_net_type {
121 NDIS_80211_TYPE_FREQ_HOP,
122 NDIS_80211_TYPE_DIRECT_SEQ,
123 NDIS_80211_TYPE_OFDM_A,
124 NDIS_80211_TYPE_OFDM_G
125};
126
127enum ndis_80211_net_infra {
128 NDIS_80211_INFRA_ADHOC,
129 NDIS_80211_INFRA_INFRA,
130 NDIS_80211_INFRA_AUTO_UNKNOWN
131};
132
133enum ndis_80211_auth_mode {
134 NDIS_80211_AUTH_OPEN,
135 NDIS_80211_AUTH_SHARED,
136 NDIS_80211_AUTH_AUTO_SWITCH,
137 NDIS_80211_AUTH_WPA,
138 NDIS_80211_AUTH_WPA_PSK,
139 NDIS_80211_AUTH_WPA_NONE,
140 NDIS_80211_AUTH_WPA2,
141 NDIS_80211_AUTH_WPA2_PSK
142};
143
144enum ndis_80211_encr_status {
145 NDIS_80211_ENCR_WEP_ENABLED,
146 NDIS_80211_ENCR_DISABLED,
147 NDIS_80211_ENCR_WEP_KEY_ABSENT,
148 NDIS_80211_ENCR_NOT_SUPPORTED,
149 NDIS_80211_ENCR_TKIP_ENABLED,
150 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
151 NDIS_80211_ENCR_CCMP_ENABLED,
152 NDIS_80211_ENCR_CCMP_KEY_ABSENT
153};
154
155enum ndis_80211_priv_filter {
156 NDIS_80211_PRIV_ACCEPT_ALL,
157 NDIS_80211_PRIV_8021X_WEP
158};
159
160enum ndis_80211_status_type {
161 NDIS_80211_STATUSTYPE_AUTHENTICATION,
162 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
163 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
164 NDIS_80211_STATUSTYPE_RADIOSTATE,
165};
166
167enum ndis_80211_media_stream_mode {
168 NDIS_80211_MEDIA_STREAM_OFF,
169 NDIS_80211_MEDIA_STREAM_ON
170};
171
172enum ndis_80211_radio_status {
173 NDIS_80211_RADIO_STATUS_ON,
174 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
175 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
176};
177
178enum ndis_80211_addkey_bits {
179 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
180 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
181 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
182 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
183};
184
185enum ndis_80211_addwep_bits {
186 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
187 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
188};
189
190enum ndis_80211_power_mode {
191 NDIS_80211_POWER_MODE_CAM,
192 NDIS_80211_POWER_MODE_MAX_PSP,
193 NDIS_80211_POWER_MODE_FAST_PSP,
194};
195
196enum ndis_80211_pmkid_cand_list_flag_bits {
197 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
198};
199
200struct ndis_80211_auth_request {
201 __le32 length;
202 u8 bssid[ETH_ALEN];
203 u8 padding[2];
204 __le32 flags;
205} __packed;
206
207struct ndis_80211_pmkid_candidate {
208 u8 bssid[ETH_ALEN];
209 u8 padding[2];
210 __le32 flags;
211} __packed;
212
213struct ndis_80211_pmkid_cand_list {
214 __le32 version;
215 __le32 num_candidates;
216 struct ndis_80211_pmkid_candidate candidate_list[];
217} __packed;
218
219struct ndis_80211_status_indication {
220 __le32 status_type;
221 union {
222 __le32 media_stream_mode;
223 __le32 radio_status;
224 struct ndis_80211_auth_request auth_request[0];
225 struct ndis_80211_pmkid_cand_list cand_list;
226 } u;
227} __packed;
228
229struct ndis_80211_ssid {
230 __le32 length;
231 u8 essid[NDIS_802_11_LENGTH_SSID];
232} __packed;
233
234struct ndis_80211_conf_freq_hop {
235 __le32 length;
236 __le32 hop_pattern;
237 __le32 hop_set;
238 __le32 dwell_time;
239} __packed;
240
241struct ndis_80211_conf {
242 __le32 length;
243 __le32 beacon_period;
244 __le32 atim_window;
245 __le32 ds_config;
246 struct ndis_80211_conf_freq_hop fh_config;
247} __packed;
248
249struct ndis_80211_bssid_ex {
250 __le32 length;
251 u8 mac[ETH_ALEN];
252 u8 padding[2];
253 struct ndis_80211_ssid ssid;
254 __le32 privacy;
255 __le32 rssi;
256 __le32 net_type;
257 struct ndis_80211_conf config;
258 __le32 net_infra;
259 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
260 __le32 ie_length;
261 u8 ies[];
262} __packed;
263
264struct ndis_80211_bssid_list_ex {
265 __le32 num_items;
266 struct ndis_80211_bssid_ex bssid[];
267} __packed;
268
269struct ndis_80211_fixed_ies {
270 u8 timestamp[8];
271 __le16 beacon_interval;
272 __le16 capabilities;
273} __packed;
274
275struct ndis_80211_wep_key {
276 __le32 size;
277 __le32 index;
278 __le32 length;
279 u8 material[32];
280} __packed;
281
282struct ndis_80211_key {
283 __le32 size;
284 __le32 index;
285 __le32 length;
286 u8 bssid[ETH_ALEN];
287 u8 padding[6];
288 u8 rsc[8];
289 u8 material[32];
290} __packed;
291
292struct ndis_80211_remove_key {
293 __le32 size;
294 __le32 index;
295 u8 bssid[ETH_ALEN];
296 u8 padding[2];
297} __packed;
298
299struct ndis_config_param {
300 __le32 name_offs;
301 __le32 name_length;
302 __le32 type;
303 __le32 value_offs;
304 __le32 value_length;
305} __packed;
306
307struct ndis_80211_assoc_info {
308 __le32 length;
309 __le16 req_ies;
310 struct req_ie {
311 __le16 capa;
312 __le16 listen_interval;
313 u8 cur_ap_address[ETH_ALEN];
314 } req_ie;
315 __le32 req_ie_length;
316 __le32 offset_req_ies;
317 __le16 resp_ies;
318 struct resp_ie {
319 __le16 capa;
320 __le16 status_code;
321 __le16 assoc_id;
322 } resp_ie;
323 __le32 resp_ie_length;
324 __le32 offset_resp_ies;
325} __packed;
326
327struct ndis_80211_capability {
328 __le32 length;
329 __le32 version;
330 __le32 num_pmkids;
331 __le32 num_auth_encr_pair;
332} __packed;
333
334struct ndis_80211_bssid_info {
335 u8 bssid[ETH_ALEN];
336 u8 pmkid[16];
337} __packed;
338
339struct ndis_80211_pmkid {
340 __le32 length;
341 __le32 bssid_info_count;
342 struct ndis_80211_bssid_info bssid_info[];
343} __packed;
344
345
346
347
348#define CAP_MODE_80211A 1
349#define CAP_MODE_80211B 2
350#define CAP_MODE_80211G 4
351#define CAP_MODE_MASK 7
352
353#define WORK_LINK_UP 0
354#define WORK_LINK_DOWN 1
355#define WORK_SET_MULTICAST_LIST 2
356
357#define RNDIS_WLAN_ALG_NONE 0
358#define RNDIS_WLAN_ALG_WEP (1<<0)
359#define RNDIS_WLAN_ALG_TKIP (1<<1)
360#define RNDIS_WLAN_ALG_CCMP (1<<2)
361
362#define RNDIS_WLAN_NUM_KEYS 4
363#define RNDIS_WLAN_KEY_MGMT_NONE 0
364#define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
365#define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
366
367#define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
368
369static const struct ieee80211_channel rndis_channels[] = {
370 { .center_freq = 2412 },
371 { .center_freq = 2417 },
372 { .center_freq = 2422 },
373 { .center_freq = 2427 },
374 { .center_freq = 2432 },
375 { .center_freq = 2437 },
376 { .center_freq = 2442 },
377 { .center_freq = 2447 },
378 { .center_freq = 2452 },
379 { .center_freq = 2457 },
380 { .center_freq = 2462 },
381 { .center_freq = 2467 },
382 { .center_freq = 2472 },
383 { .center_freq = 2484 },
384};
385
386static const struct ieee80211_rate rndis_rates[] = {
387 { .bitrate = 10 },
388 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
389 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
390 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
391 { .bitrate = 60 },
392 { .bitrate = 90 },
393 { .bitrate = 120 },
394 { .bitrate = 180 },
395 { .bitrate = 240 },
396 { .bitrate = 360 },
397 { .bitrate = 480 },
398 { .bitrate = 540 }
399};
400
401static const u32 rndis_cipher_suites[] = {
402 WLAN_CIPHER_SUITE_WEP40,
403 WLAN_CIPHER_SUITE_WEP104,
404 WLAN_CIPHER_SUITE_TKIP,
405 WLAN_CIPHER_SUITE_CCMP,
406};
407
408struct rndis_wlan_encr_key {
409 int len;
410 u32 cipher;
411 u8 material[32];
412 u8 bssid[ETH_ALEN];
413 bool pairwise;
414 bool tx_key;
415};
416
417
418struct rndis_wlan_private {
419 struct usbnet *usbdev;
420
421 struct wireless_dev wdev;
422
423 struct cfg80211_scan_request *scan_request;
424
425 struct workqueue_struct *workqueue;
426 struct delayed_work dev_poller_work;
427 struct delayed_work scan_work;
428 struct work_struct work;
429 struct mutex command_lock;
430 unsigned long work_pending;
431 int last_qual;
432 s32 cqm_rssi_thold;
433 u32 cqm_rssi_hyst;
434 int last_cqm_event_rssi;
435
436 struct ieee80211_supported_band band;
437 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
438 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
439 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
440
441 int device_type;
442 int caps;
443 int multicast_size;
444
445
446 char param_country[4];
447 int param_frameburst;
448 int param_afterburner;
449 int param_power_save;
450 int param_power_output;
451 int param_roamtrigger;
452 int param_roamdelta;
453 u32 param_workaround_interval;
454
455
456 bool radio_on;
457 int power_mode;
458 int infra_mode;
459 bool connected;
460 u8 bssid[ETH_ALEN];
461 u32 current_command_oid;
462
463
464 u8 encr_tx_key_index;
465 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
466 int wpa_version;
467
468 u8 command_buffer[COMMAND_BUFFER_SIZE];
469};
470
471
472
473
474static int rndis_change_virtual_intf(struct wiphy *wiphy,
475 struct net_device *dev,
476 enum nl80211_iftype type,
477 struct vif_params *params);
478
479static int rndis_scan(struct wiphy *wiphy,
480 struct cfg80211_scan_request *request);
481
482static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
483
484static int rndis_set_tx_power(struct wiphy *wiphy,
485 struct wireless_dev *wdev,
486 enum nl80211_tx_power_setting type,
487 int mbm);
488static int rndis_get_tx_power(struct wiphy *wiphy,
489 struct wireless_dev *wdev,
490 int *dbm);
491
492static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
493 struct cfg80211_connect_params *sme);
494
495static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
496 u16 reason_code);
497
498static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
499 struct cfg80211_ibss_params *params);
500
501static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
502
503static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
504 u8 key_index, bool pairwise, const u8 *mac_addr,
505 struct key_params *params);
506
507static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
508 u8 key_index, bool pairwise, const u8 *mac_addr);
509
510static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
511 u8 key_index, bool unicast, bool multicast);
512
513static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
514 const u8 *mac, struct station_info *sinfo);
515
516static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
517 int idx, u8 *mac, struct station_info *sinfo);
518
519static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
520 struct cfg80211_pmksa *pmksa);
521
522static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
523 struct cfg80211_pmksa *pmksa);
524
525static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
526
527static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
528 bool enabled, int timeout);
529
530static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
531 struct net_device *dev,
532 s32 rssi_thold, u32 rssi_hyst);
533
534static const struct cfg80211_ops rndis_config_ops = {
535 .change_virtual_intf = rndis_change_virtual_intf,
536 .scan = rndis_scan,
537 .set_wiphy_params = rndis_set_wiphy_params,
538 .set_tx_power = rndis_set_tx_power,
539 .get_tx_power = rndis_get_tx_power,
540 .connect = rndis_connect,
541 .disconnect = rndis_disconnect,
542 .join_ibss = rndis_join_ibss,
543 .leave_ibss = rndis_leave_ibss,
544 .add_key = rndis_add_key,
545 .del_key = rndis_del_key,
546 .set_default_key = rndis_set_default_key,
547 .get_station = rndis_get_station,
548 .dump_station = rndis_dump_station,
549 .set_pmksa = rndis_set_pmksa,
550 .del_pmksa = rndis_del_pmksa,
551 .flush_pmksa = rndis_flush_pmksa,
552 .set_power_mgmt = rndis_set_power_mgmt,
553 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
554};
555
556static void *rndis_wiphy_privid = &rndis_wiphy_privid;
557
558
559static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
560{
561 return (struct rndis_wlan_private *)dev->driver_priv;
562}
563
564static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
565{
566 switch (priv->param_power_output) {
567 default:
568 case 3:
569 return BCM4320_DEFAULT_TXPOWER_DBM_100;
570 case 2:
571 return BCM4320_DEFAULT_TXPOWER_DBM_75;
572 case 1:
573 return BCM4320_DEFAULT_TXPOWER_DBM_50;
574 case 0:
575 return BCM4320_DEFAULT_TXPOWER_DBM_25;
576 }
577}
578
579static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
580{
581 int cipher = priv->encr_keys[idx].cipher;
582
583 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
584 cipher == WLAN_CIPHER_SUITE_TKIP);
585}
586
587static int rndis_cipher_to_alg(u32 cipher)
588{
589 switch (cipher) {
590 default:
591 return RNDIS_WLAN_ALG_NONE;
592 case WLAN_CIPHER_SUITE_WEP40:
593 case WLAN_CIPHER_SUITE_WEP104:
594 return RNDIS_WLAN_ALG_WEP;
595 case WLAN_CIPHER_SUITE_TKIP:
596 return RNDIS_WLAN_ALG_TKIP;
597 case WLAN_CIPHER_SUITE_CCMP:
598 return RNDIS_WLAN_ALG_CCMP;
599 }
600}
601
602static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
603{
604 switch (akm_suite) {
605 default:
606 return RNDIS_WLAN_KEY_MGMT_NONE;
607 case WLAN_AKM_SUITE_8021X:
608 return RNDIS_WLAN_KEY_MGMT_802_1X;
609 case WLAN_AKM_SUITE_PSK:
610 return RNDIS_WLAN_KEY_MGMT_PSK;
611 }
612}
613
614#ifdef DEBUG
615static const char *oid_to_string(u32 oid)
616{
617 switch (oid) {
618#define OID_STR(oid) case oid: return(#oid)
619
620 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
621 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
622 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
623 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
624
625
626 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
627 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
628
629 OID_STR(RNDIS_OID_GEN_XMIT_OK);
630 OID_STR(RNDIS_OID_GEN_RCV_OK);
631 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
632 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
633 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
634
635 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
636 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
637 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
638
639 OID_STR(RNDIS_OID_802_11_BSSID);
640 OID_STR(RNDIS_OID_802_11_SSID);
641 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
642 OID_STR(RNDIS_OID_802_11_ADD_WEP);
643 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
644 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
645 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
646 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
647 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
648 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
649 OID_STR(RNDIS_OID_802_11_ADD_KEY);
650 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
651 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
652 OID_STR(RNDIS_OID_802_11_CAPABILITY);
653 OID_STR(RNDIS_OID_802_11_PMKID);
654 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
655 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
656 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
657 OID_STR(RNDIS_OID_802_11_RSSI);
658 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
659 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
660 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
661 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
662 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
663 OID_STR(RNDIS_OID_802_11_POWER_MODE);
664 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
665#undef OID_STR
666 }
667
668 return "?";
669}
670#else
671static const char *oid_to_string(u32 oid)
672{
673 return "?";
674}
675#endif
676
677
678static int rndis_error_status(__le32 rndis_status)
679{
680 int ret = -EINVAL;
681 switch (le32_to_cpu(rndis_status)) {
682 case RNDIS_STATUS_SUCCESS:
683 ret = 0;
684 break;
685 case RNDIS_STATUS_FAILURE:
686 case RNDIS_STATUS_INVALID_DATA:
687 ret = -EINVAL;
688 break;
689 case RNDIS_STATUS_NOT_SUPPORTED:
690 ret = -EOPNOTSUPP;
691 break;
692 case RNDIS_STATUS_ADAPTER_NOT_READY:
693 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
694 ret = -EBUSY;
695 break;
696 }
697 return ret;
698}
699
700static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
701{
702 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
703 union {
704 void *buf;
705 struct rndis_msg_hdr *header;
706 struct rndis_query *get;
707 struct rndis_query_c *get_c;
708 } u;
709 int ret, buflen;
710 int resplen, respoffs, copylen;
711
712 buflen = *len + sizeof(*u.get);
713 if (buflen < CONTROL_BUFFER_SIZE)
714 buflen = CONTROL_BUFFER_SIZE;
715
716 if (buflen > COMMAND_BUFFER_SIZE) {
717 u.buf = kmalloc(buflen, GFP_KERNEL);
718 if (!u.buf)
719 return -ENOMEM;
720 } else {
721 u.buf = priv->command_buffer;
722 }
723
724 mutex_lock(&priv->command_lock);
725
726 memset(u.get, 0, sizeof *u.get);
727 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
728 u.get->msg_len = cpu_to_le32(sizeof *u.get);
729 u.get->oid = cpu_to_le32(oid);
730
731 priv->current_command_oid = oid;
732 ret = rndis_command(dev, u.header, buflen);
733 priv->current_command_oid = 0;
734 if (ret < 0)
735 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
736 __func__, oid_to_string(oid), ret,
737 le32_to_cpu(u.get_c->status));
738
739 if (ret == 0) {
740 resplen = le32_to_cpu(u.get_c->len);
741 respoffs = le32_to_cpu(u.get_c->offset) + 8;
742
743 if (respoffs > buflen) {
744
745 netdev_dbg(dev->net, "%s(%s): received invalid "
746 "data offset: %d > %d\n", __func__,
747 oid_to_string(oid), respoffs, buflen);
748
749 ret = -EINVAL;
750 goto exit_unlock;
751 }
752
753 if ((resplen + respoffs) > buflen) {
754
755
756
757 copylen = buflen - respoffs;
758 } else {
759 copylen = resplen;
760 }
761
762 if (copylen > *len)
763 copylen = *len;
764
765 memcpy(data, u.buf + respoffs, copylen);
766
767 *len = resplen;
768
769 ret = rndis_error_status(u.get_c->status);
770 if (ret < 0)
771 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
772 __func__, oid_to_string(oid),
773 le32_to_cpu(u.get_c->status), ret);
774 }
775
776exit_unlock:
777 mutex_unlock(&priv->command_lock);
778
779 if (u.buf != priv->command_buffer)
780 kfree(u.buf);
781 return ret;
782}
783
784static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
785 int len)
786{
787 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
788 union {
789 void *buf;
790 struct rndis_msg_hdr *header;
791 struct rndis_set *set;
792 struct rndis_set_c *set_c;
793 } u;
794 int ret, buflen;
795
796 buflen = len + sizeof(*u.set);
797 if (buflen < CONTROL_BUFFER_SIZE)
798 buflen = CONTROL_BUFFER_SIZE;
799
800 if (buflen > COMMAND_BUFFER_SIZE) {
801 u.buf = kmalloc(buflen, GFP_KERNEL);
802 if (!u.buf)
803 return -ENOMEM;
804 } else {
805 u.buf = priv->command_buffer;
806 }
807
808 mutex_lock(&priv->command_lock);
809
810 memset(u.set, 0, sizeof *u.set);
811 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
812 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
813 u.set->oid = cpu_to_le32(oid);
814 u.set->len = cpu_to_le32(len);
815 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
816 u.set->handle = cpu_to_le32(0);
817 memcpy(u.buf + sizeof(*u.set), data, len);
818
819 priv->current_command_oid = oid;
820 ret = rndis_command(dev, u.header, buflen);
821 priv->current_command_oid = 0;
822 if (ret < 0)
823 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
824 __func__, oid_to_string(oid), ret,
825 le32_to_cpu(u.set_c->status));
826
827 if (ret == 0) {
828 ret = rndis_error_status(u.set_c->status);
829
830 if (ret < 0)
831 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
832 __func__, oid_to_string(oid),
833 le32_to_cpu(u.set_c->status), ret);
834 }
835
836 mutex_unlock(&priv->command_lock);
837
838 if (u.buf != priv->command_buffer)
839 kfree(u.buf);
840 return ret;
841}
842
843static int rndis_reset(struct usbnet *usbdev)
844{
845 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
846 struct rndis_reset *reset;
847 int ret;
848
849 mutex_lock(&priv->command_lock);
850
851 reset = (void *)priv->command_buffer;
852 memset(reset, 0, sizeof(*reset));
853 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
854 reset->msg_len = cpu_to_le32(sizeof(*reset));
855 priv->current_command_oid = 0;
856 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
857
858 mutex_unlock(&priv->command_lock);
859
860 if (ret < 0)
861 return ret;
862 return 0;
863}
864
865
866
867
868
869
870static int rndis_set_config_parameter(struct usbnet *dev, char *param,
871 int value_type, void *value)
872{
873 struct ndis_config_param *infobuf;
874 int value_len, info_len, param_len, ret, i;
875 __le16 *unibuf;
876 __le32 *dst_value;
877
878 if (value_type == 0)
879 value_len = sizeof(__le32);
880 else if (value_type == 2)
881 value_len = strlen(value) * sizeof(__le16);
882 else
883 return -EINVAL;
884
885 param_len = strlen(param) * sizeof(__le16);
886 info_len = sizeof(*infobuf) + param_len + value_len;
887
888#ifdef DEBUG
889 info_len += 12;
890#endif
891 infobuf = kmalloc(info_len, GFP_KERNEL);
892 if (!infobuf)
893 return -ENOMEM;
894
895#ifdef DEBUG
896 info_len -= 12;
897
898 memset(infobuf, 0xCC, info_len + 12);
899#endif
900
901 if (value_type == 2)
902 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
903 param, (u8 *)value);
904 else
905 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
906 param, *(u32 *)value);
907
908 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
909 infobuf->name_length = cpu_to_le32(param_len);
910 infobuf->type = cpu_to_le32(value_type);
911 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
912 infobuf->value_length = cpu_to_le32(value_len);
913
914
915 unibuf = (void *)infobuf + sizeof(*infobuf);
916 for (i = 0; i < param_len / sizeof(__le16); i++)
917 unibuf[i] = cpu_to_le16(param[i]);
918
919 if (value_type == 2) {
920 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
921 for (i = 0; i < value_len / sizeof(__le16); i++)
922 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
923 } else {
924 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
925 *dst_value = cpu_to_le32(*(u32 *)value);
926 }
927
928#ifdef DEBUG
929 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
930 for (i = 0; i < info_len; i += 12) {
931 u32 *tmp = (u32 *)((u8 *)infobuf + i);
932 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
933 cpu_to_be32(tmp[0]),
934 cpu_to_be32(tmp[1]),
935 cpu_to_be32(tmp[2]));
936 }
937#endif
938
939 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
940 infobuf, info_len);
941 if (ret != 0)
942 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
943 ret);
944
945 kfree(infobuf);
946 return ret;
947}
948
949static int rndis_set_config_parameter_str(struct usbnet *dev,
950 char *param, char *value)
951{
952 return rndis_set_config_parameter(dev, param, 2, value);
953}
954
955
956
957
958static int level_to_qual(int level)
959{
960 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
961 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
962}
963
964
965
966
967static int set_infra_mode(struct usbnet *usbdev, int mode);
968static void restore_keys(struct usbnet *usbdev);
969static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
970 bool *matched);
971
972static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
973{
974 __le32 tmp;
975
976
977 tmp = cpu_to_le32(1);
978 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
979 sizeof(tmp));
980}
981
982static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
983{
984 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
985 int ret;
986
987 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
988 ssid, sizeof(*ssid));
989 if (ret < 0) {
990 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
991 return ret;
992 }
993 if (ret == 0) {
994 priv->radio_on = true;
995 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
996 }
997
998 return ret;
999}
1000
1001static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1002{
1003 int ret;
1004
1005 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1006 bssid, ETH_ALEN);
1007 if (ret < 0) {
1008 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1009 bssid, ret);
1010 return ret;
1011 }
1012
1013 return ret;
1014}
1015
1016static int clear_bssid(struct usbnet *usbdev)
1017{
1018 static const u8 broadcast_mac[ETH_ALEN] = {
1019 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1020 };
1021
1022 return set_bssid(usbdev, broadcast_mac);
1023}
1024
1025static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1026{
1027 int ret, len;
1028
1029 len = ETH_ALEN;
1030 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1031 bssid, &len);
1032
1033 if (ret != 0)
1034 eth_zero_addr(bssid);
1035
1036 return ret;
1037}
1038
1039static int get_association_info(struct usbnet *usbdev,
1040 struct ndis_80211_assoc_info *info, int len)
1041{
1042 return rndis_query_oid(usbdev,
1043 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1044 info, &len);
1045}
1046
1047static bool is_associated(struct usbnet *usbdev)
1048{
1049 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1050 u8 bssid[ETH_ALEN];
1051 int ret;
1052
1053 if (!priv->radio_on)
1054 return false;
1055
1056 ret = get_bssid(usbdev, bssid);
1057
1058 return (ret == 0 && !is_zero_ether_addr(bssid));
1059}
1060
1061static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1062{
1063 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1064 struct ndis_80211_ssid ssid;
1065 int i, ret = 0;
1066
1067 if (priv->radio_on) {
1068 ret = rndis_set_oid(usbdev,
1069 RNDIS_OID_802_11_DISASSOCIATE,
1070 NULL, 0);
1071 if (ret == 0) {
1072 priv->radio_on = false;
1073 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1074 __func__);
1075
1076 if (reset_ssid)
1077 msleep(100);
1078 }
1079 }
1080
1081
1082
1083 if (reset_ssid) {
1084
1085
1086
1087 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1088
1089 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1090 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1091 ssid.essid[0] = 0x1;
1092 ssid.essid[1] = 0xff;
1093 for (i = 2; i < sizeof(ssid.essid); i++)
1094 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1095 ret = set_essid(usbdev, &ssid);
1096 }
1097 return ret;
1098}
1099
1100static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1101 enum nl80211_auth_type auth_type, int keymgmt)
1102{
1103 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1104 __le32 tmp;
1105 int auth_mode, ret;
1106
1107 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1108 __func__, wpa_version, auth_type, keymgmt);
1109
1110 if (wpa_version & NL80211_WPA_VERSION_2) {
1111 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1112 auth_mode = NDIS_80211_AUTH_WPA2;
1113 else
1114 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1115 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1116 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1117 auth_mode = NDIS_80211_AUTH_WPA;
1118 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1119 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1120 else
1121 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1122 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1123 auth_mode = NDIS_80211_AUTH_SHARED;
1124 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1125 auth_mode = NDIS_80211_AUTH_OPEN;
1126 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1127 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1128 else
1129 return -ENOTSUPP;
1130
1131 tmp = cpu_to_le32(auth_mode);
1132 ret = rndis_set_oid(usbdev,
1133 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1134 &tmp, sizeof(tmp));
1135 if (ret != 0) {
1136 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1137 ret);
1138 return ret;
1139 }
1140
1141 priv->wpa_version = wpa_version;
1142
1143 return 0;
1144}
1145
1146static int set_priv_filter(struct usbnet *usbdev)
1147{
1148 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1149 __le32 tmp;
1150
1151 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1152 __func__, priv->wpa_version);
1153
1154 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1155 priv->wpa_version & NL80211_WPA_VERSION_1)
1156 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1157 else
1158 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1159
1160 return rndis_set_oid(usbdev,
1161 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1162 sizeof(tmp));
1163}
1164
1165static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1166{
1167 __le32 tmp;
1168 int encr_mode, ret;
1169
1170 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1171 __func__, pairwise, groupwise);
1172
1173 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1174 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1175 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1176 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1177 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1178 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1179 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1180 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1181 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1182 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1183 else
1184 encr_mode = NDIS_80211_ENCR_DISABLED;
1185
1186 tmp = cpu_to_le32(encr_mode);
1187 ret = rndis_set_oid(usbdev,
1188 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1189 sizeof(tmp));
1190 if (ret != 0) {
1191 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1192 ret);
1193 return ret;
1194 }
1195
1196 return 0;
1197}
1198
1199static int set_infra_mode(struct usbnet *usbdev, int mode)
1200{
1201 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1202 __le32 tmp;
1203 int ret;
1204
1205 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1206 __func__, priv->infra_mode);
1207
1208 tmp = cpu_to_le32(mode);
1209 ret = rndis_set_oid(usbdev,
1210 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1211 &tmp, sizeof(tmp));
1212 if (ret != 0) {
1213 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1214 ret);
1215 return ret;
1216 }
1217
1218
1219
1220
1221 restore_keys(usbdev);
1222
1223 priv->infra_mode = mode;
1224 return 0;
1225}
1226
1227static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1228{
1229 __le32 tmp;
1230
1231 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1232
1233 if (rts_threshold == -1 || rts_threshold > 2347)
1234 rts_threshold = 2347;
1235
1236 tmp = cpu_to_le32(rts_threshold);
1237 return rndis_set_oid(usbdev,
1238 RNDIS_OID_802_11_RTS_THRESHOLD,
1239 &tmp, sizeof(tmp));
1240}
1241
1242static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1243{
1244 __le32 tmp;
1245
1246 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1247
1248 if (frag_threshold < 256 || frag_threshold > 2346)
1249 frag_threshold = 2346;
1250
1251 tmp = cpu_to_le32(frag_threshold);
1252 return rndis_set_oid(usbdev,
1253 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1254 &tmp, sizeof(tmp));
1255}
1256
1257static void set_default_iw_params(struct usbnet *usbdev)
1258{
1259 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1260 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1261 RNDIS_WLAN_KEY_MGMT_NONE);
1262 set_priv_filter(usbdev);
1263 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1264}
1265
1266static int deauthenticate(struct usbnet *usbdev)
1267{
1268 int ret;
1269
1270 ret = disassociate(usbdev, true);
1271 set_default_iw_params(usbdev);
1272 return ret;
1273}
1274
1275static int set_channel(struct usbnet *usbdev, int channel)
1276{
1277 struct ndis_80211_conf config;
1278 unsigned int dsconfig;
1279 int len, ret;
1280
1281 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1282
1283
1284 if (is_associated(usbdev))
1285 return 0;
1286
1287 dsconfig = 1000 *
1288 ieee80211_channel_to_frequency(channel, NL80211_BAND_2GHZ);
1289
1290 len = sizeof(config);
1291 ret = rndis_query_oid(usbdev,
1292 RNDIS_OID_802_11_CONFIGURATION,
1293 &config, &len);
1294 if (ret < 0) {
1295 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1296 __func__);
1297 return ret;
1298 }
1299
1300 config.ds_config = cpu_to_le32(dsconfig);
1301 ret = rndis_set_oid(usbdev,
1302 RNDIS_OID_802_11_CONFIGURATION,
1303 &config, sizeof(config));
1304
1305 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1306
1307 return ret;
1308}
1309
1310static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1311 u32 *beacon_period)
1312{
1313 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1314 struct ieee80211_channel *channel;
1315 struct ndis_80211_conf config;
1316 int len, ret;
1317
1318
1319 len = sizeof(config);
1320 ret = rndis_query_oid(usbdev,
1321 RNDIS_OID_802_11_CONFIGURATION,
1322 &config, &len);
1323 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1324 __func__, ret);
1325 if (ret < 0)
1326 return NULL;
1327
1328 channel = ieee80211_get_channel(priv->wdev.wiphy,
1329 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1330 if (!channel)
1331 return NULL;
1332
1333 if (beacon_period)
1334 *beacon_period = le32_to_cpu(config.beacon_period);
1335 return channel;
1336}
1337
1338
1339static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1340 u8 index)
1341{
1342 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1343 struct ndis_80211_wep_key ndis_key;
1344 u32 cipher;
1345 int ret;
1346
1347 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1348 __func__, index, key_len);
1349
1350 if (index >= RNDIS_WLAN_NUM_KEYS)
1351 return -EINVAL;
1352
1353 if (key_len == 5)
1354 cipher = WLAN_CIPHER_SUITE_WEP40;
1355 else if (key_len == 13)
1356 cipher = WLAN_CIPHER_SUITE_WEP104;
1357 else
1358 return -EINVAL;
1359
1360 memset(&ndis_key, 0, sizeof(ndis_key));
1361
1362 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1363 ndis_key.length = cpu_to_le32(key_len);
1364 ndis_key.index = cpu_to_le32(index);
1365 memcpy(&ndis_key.material, key, key_len);
1366
1367 if (index == priv->encr_tx_key_index) {
1368 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1369 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1370 RNDIS_WLAN_ALG_NONE);
1371 if (ret)
1372 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1373 ret);
1374 }
1375
1376 ret = rndis_set_oid(usbdev,
1377 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1378 sizeof(ndis_key));
1379 if (ret != 0) {
1380 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1381 index + 1, ret);
1382 return ret;
1383 }
1384
1385 priv->encr_keys[index].len = key_len;
1386 priv->encr_keys[index].cipher = cipher;
1387 memcpy(&priv->encr_keys[index].material, key, key_len);
1388 eth_broadcast_addr(priv->encr_keys[index].bssid);
1389
1390 return 0;
1391}
1392
1393static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1394 u8 index, const u8 *addr, const u8 *rx_seq,
1395 int seq_len, u32 cipher, __le32 flags)
1396{
1397 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1398 struct ndis_80211_key ndis_key;
1399 bool is_addr_ok;
1400 int ret;
1401
1402 if (index >= RNDIS_WLAN_NUM_KEYS) {
1403 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1404 __func__, index);
1405 return -EINVAL;
1406 }
1407 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1408 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1409 __func__, key_len);
1410 return -EINVAL;
1411 }
1412 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1413 if (!rx_seq || seq_len <= 0) {
1414 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1415 __func__);
1416 return -EINVAL;
1417 }
1418 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1419 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1420 return -EINVAL;
1421 }
1422 }
1423
1424 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1425 !is_broadcast_ether_addr(addr);
1426 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1427 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1428 __func__, addr);
1429 return -EINVAL;
1430 }
1431
1432 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1433 __func__, index,
1434 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1435 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1436 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1437
1438 memset(&ndis_key, 0, sizeof(ndis_key));
1439
1440 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1441 sizeof(ndis_key.material) + key_len);
1442 ndis_key.length = cpu_to_le32(key_len);
1443 ndis_key.index = cpu_to_le32(index) | flags;
1444
1445 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1446
1447
1448 memcpy(ndis_key.material, key, 16);
1449 memcpy(ndis_key.material + 16, key + 24, 8);
1450 memcpy(ndis_key.material + 24, key + 16, 8);
1451 } else
1452 memcpy(ndis_key.material, key, key_len);
1453
1454 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1455 memcpy(ndis_key.rsc, rx_seq, seq_len);
1456
1457 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1458
1459 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1460 } else {
1461
1462 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1463 eth_broadcast_addr(ndis_key.bssid);
1464 else
1465 get_bssid(usbdev, ndis_key.bssid);
1466 }
1467
1468 ret = rndis_set_oid(usbdev,
1469 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1470 le32_to_cpu(ndis_key.size));
1471 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1472 __func__, ret);
1473 if (ret != 0)
1474 return ret;
1475
1476 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1477 priv->encr_keys[index].len = key_len;
1478 priv->encr_keys[index].cipher = cipher;
1479 memcpy(&priv->encr_keys[index].material, key, key_len);
1480 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1481 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1482 else
1483 eth_broadcast_addr(priv->encr_keys[index].bssid);
1484
1485 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1486 priv->encr_tx_key_index = index;
1487
1488 return 0;
1489}
1490
1491static int restore_key(struct usbnet *usbdev, u8 key_idx)
1492{
1493 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1494 struct rndis_wlan_encr_key key;
1495
1496 if (is_wpa_key(priv, key_idx))
1497 return 0;
1498
1499 key = priv->encr_keys[key_idx];
1500
1501 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1502
1503 if (key.len == 0)
1504 return 0;
1505
1506 return add_wep_key(usbdev, key.material, key.len, key_idx);
1507}
1508
1509static void restore_keys(struct usbnet *usbdev)
1510{
1511 int i;
1512
1513 for (i = 0; i < 4; i++)
1514 restore_key(usbdev, i);
1515}
1516
1517static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1518{
1519 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1520}
1521
1522
1523static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1524{
1525 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1526 struct ndis_80211_remove_key remove_key;
1527 __le32 keyindex;
1528 bool is_wpa;
1529 int ret;
1530
1531 if (index >= RNDIS_WLAN_NUM_KEYS)
1532 return -ENOENT;
1533
1534 if (priv->encr_keys[index].len == 0)
1535 return 0;
1536
1537 is_wpa = is_wpa_key(priv, index);
1538
1539 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1540 __func__, index, is_wpa ? "wpa" : "wep",
1541 priv->encr_keys[index].len);
1542
1543 clear_key(priv, index);
1544
1545 if (is_wpa) {
1546 remove_key.size = cpu_to_le32(sizeof(remove_key));
1547 remove_key.index = cpu_to_le32(index);
1548 if (bssid) {
1549
1550 if (!is_broadcast_ether_addr(bssid))
1551 remove_key.index |=
1552 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1553 memcpy(remove_key.bssid, bssid,
1554 sizeof(remove_key.bssid));
1555 } else
1556 memset(remove_key.bssid, 0xff,
1557 sizeof(remove_key.bssid));
1558
1559 ret = rndis_set_oid(usbdev,
1560 RNDIS_OID_802_11_REMOVE_KEY,
1561 &remove_key, sizeof(remove_key));
1562 if (ret != 0)
1563 return ret;
1564 } else {
1565 keyindex = cpu_to_le32(index);
1566 ret = rndis_set_oid(usbdev,
1567 RNDIS_OID_802_11_REMOVE_WEP,
1568 &keyindex, sizeof(keyindex));
1569 if (ret != 0) {
1570 netdev_warn(usbdev->net,
1571 "removing encryption key %d failed (%08X)\n",
1572 index, ret);
1573 return ret;
1574 }
1575 }
1576
1577
1578 if (index == priv->encr_tx_key_index)
1579 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1580
1581 return 0;
1582}
1583
1584static void set_multicast_list(struct usbnet *usbdev)
1585{
1586 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1587 struct netdev_hw_addr *ha;
1588 __le32 filter, basefilter;
1589 int ret;
1590 char *mc_addrs = NULL;
1591 int mc_count;
1592
1593 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1594 RNDIS_PACKET_TYPE_BROADCAST);
1595
1596 if (usbdev->net->flags & IFF_PROMISC) {
1597 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1598 RNDIS_PACKET_TYPE_ALL_LOCAL);
1599 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1600 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1601 }
1602
1603 if (filter != basefilter)
1604 goto set_filter;
1605
1606
1607
1608
1609
1610 netif_addr_lock_bh(usbdev->net);
1611 mc_count = netdev_mc_count(usbdev->net);
1612 if (mc_count > priv->multicast_size) {
1613 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1614 } else if (mc_count) {
1615 int i = 0;
1616
1617 mc_addrs = kmalloc_array(mc_count, ETH_ALEN, GFP_ATOMIC);
1618 if (!mc_addrs) {
1619 netif_addr_unlock_bh(usbdev->net);
1620 return;
1621 }
1622
1623 netdev_for_each_mc_addr(ha, usbdev->net)
1624 memcpy(mc_addrs + i++ * ETH_ALEN,
1625 ha->addr, ETH_ALEN);
1626 }
1627 netif_addr_unlock_bh(usbdev->net);
1628
1629 if (filter != basefilter)
1630 goto set_filter;
1631
1632 if (mc_count) {
1633 ret = rndis_set_oid(usbdev,
1634 RNDIS_OID_802_3_MULTICAST_LIST,
1635 mc_addrs, mc_count * ETH_ALEN);
1636 kfree(mc_addrs);
1637 if (ret == 0)
1638 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1639 else
1640 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1641
1642 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1643 mc_count, priv->multicast_size, ret);
1644 }
1645
1646set_filter:
1647 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1648 sizeof(filter));
1649 if (ret < 0) {
1650 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1651 le32_to_cpu(filter));
1652 }
1653
1654 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1655 le32_to_cpu(filter), ret);
1656}
1657
1658#ifdef DEBUG
1659static void debug_print_pmkids(struct usbnet *usbdev,
1660 struct ndis_80211_pmkid *pmkids,
1661 const char *func_str)
1662{
1663 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1664 int i, len, count, max_pmkids, entry_len;
1665
1666 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1667 len = le32_to_cpu(pmkids->length);
1668 count = le32_to_cpu(pmkids->bssid_info_count);
1669
1670 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1671
1672 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1673 "%d)\n", func_str, count, len, entry_len);
1674
1675 if (count > max_pmkids)
1676 count = max_pmkids;
1677
1678 for (i = 0; i < count; i++) {
1679 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1680
1681 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1682 "pmkid: %08X:%08X:%08X:%08X\n",
1683 func_str, pmkids->bssid_info[i].bssid,
1684 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1685 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1686 }
1687}
1688#else
1689static void debug_print_pmkids(struct usbnet *usbdev,
1690 struct ndis_80211_pmkid *pmkids,
1691 const char *func_str)
1692{
1693 return;
1694}
1695#endif
1696
1697static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1698{
1699 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1700 struct ndis_80211_pmkid *pmkids;
1701 int len, ret, max_pmkids;
1702
1703 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1704 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1705
1706 pmkids = kzalloc(len, GFP_KERNEL);
1707 if (!pmkids)
1708 return ERR_PTR(-ENOMEM);
1709
1710 pmkids->length = cpu_to_le32(len);
1711 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1712
1713 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1714 pmkids, &len);
1715 if (ret < 0) {
1716 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1717 " -> %d\n", __func__, len, max_pmkids, ret);
1718
1719 kfree(pmkids);
1720 return ERR_PTR(ret);
1721 }
1722
1723 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1724 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1725
1726 debug_print_pmkids(usbdev, pmkids, __func__);
1727
1728 return pmkids;
1729}
1730
1731static int set_device_pmkids(struct usbnet *usbdev,
1732 struct ndis_80211_pmkid *pmkids)
1733{
1734 int ret, len, num_pmkids;
1735
1736 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1737 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1738 pmkids->length = cpu_to_le32(len);
1739
1740 debug_print_pmkids(usbdev, pmkids, __func__);
1741
1742 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1743 le32_to_cpu(pmkids->length));
1744 if (ret < 0) {
1745 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1746 "\n", __func__, len, num_pmkids, ret);
1747 }
1748
1749 kfree(pmkids);
1750 return ret;
1751}
1752
1753static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1754 struct ndis_80211_pmkid *pmkids,
1755 struct cfg80211_pmksa *pmksa,
1756 int max_pmkids)
1757{
1758 int i, newlen, err;
1759 unsigned int count;
1760
1761 count = le32_to_cpu(pmkids->bssid_info_count);
1762
1763 if (count > max_pmkids)
1764 count = max_pmkids;
1765
1766 for (i = 0; i < count; i++)
1767 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1768 pmksa->bssid))
1769 break;
1770
1771
1772 if (i == count) {
1773 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1774 __func__, pmksa->bssid);
1775 err = -ENOENT;
1776 goto error;
1777 }
1778
1779 for (; i + 1 < count; i++)
1780 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1781
1782 count--;
1783 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1784
1785 pmkids->length = cpu_to_le32(newlen);
1786 pmkids->bssid_info_count = cpu_to_le32(count);
1787
1788 return pmkids;
1789error:
1790 kfree(pmkids);
1791 return ERR_PTR(err);
1792}
1793
1794static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1795 struct ndis_80211_pmkid *pmkids,
1796 struct cfg80211_pmksa *pmksa,
1797 int max_pmkids)
1798{
1799 struct ndis_80211_pmkid *new_pmkids;
1800 int i, err, newlen;
1801 unsigned int count;
1802
1803 count = le32_to_cpu(pmkids->bssid_info_count);
1804
1805 if (count > max_pmkids)
1806 count = max_pmkids;
1807
1808
1809 for (i = 0; i < count; i++) {
1810 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1811 pmksa->bssid))
1812 continue;
1813
1814 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1815 WLAN_PMKID_LEN);
1816
1817 return pmkids;
1818 }
1819
1820
1821 if (i == max_pmkids) {
1822 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1823 err = -ENOSPC;
1824 goto error;
1825 }
1826
1827
1828 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1829
1830 new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1831 if (!new_pmkids) {
1832 err = -ENOMEM;
1833 goto error;
1834 }
1835 pmkids = new_pmkids;
1836
1837 pmkids->length = cpu_to_le32(newlen);
1838 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1839
1840 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1841 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1842
1843 return pmkids;
1844error:
1845 kfree(pmkids);
1846 return ERR_PTR(err);
1847}
1848
1849
1850
1851
1852static int rndis_change_virtual_intf(struct wiphy *wiphy,
1853 struct net_device *dev,
1854 enum nl80211_iftype type,
1855 struct vif_params *params)
1856{
1857 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1858 struct usbnet *usbdev = priv->usbdev;
1859 int mode;
1860
1861 switch (type) {
1862 case NL80211_IFTYPE_ADHOC:
1863 mode = NDIS_80211_INFRA_ADHOC;
1864 break;
1865 case NL80211_IFTYPE_STATION:
1866 mode = NDIS_80211_INFRA_INFRA;
1867 break;
1868 default:
1869 return -EINVAL;
1870 }
1871
1872 priv->wdev.iftype = type;
1873
1874 return set_infra_mode(usbdev, mode);
1875}
1876
1877static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1878{
1879 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1880 struct usbnet *usbdev = priv->usbdev;
1881 int err;
1882
1883 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1884 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1885 if (err < 0)
1886 return err;
1887 }
1888
1889 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1890 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1891 if (err < 0)
1892 return err;
1893 }
1894
1895 return 0;
1896}
1897
1898static int rndis_set_tx_power(struct wiphy *wiphy,
1899 struct wireless_dev *wdev,
1900 enum nl80211_tx_power_setting type,
1901 int mbm)
1902{
1903 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1904 struct usbnet *usbdev = priv->usbdev;
1905
1906 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1907 __func__, type, mbm);
1908
1909 if (mbm < 0 || (mbm % 100))
1910 return -ENOTSUPP;
1911
1912
1913
1914
1915
1916 if (type == NL80211_TX_POWER_AUTOMATIC ||
1917 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1918 if (!priv->radio_on)
1919 disassociate(usbdev, true);
1920
1921 return 0;
1922 }
1923
1924 return -ENOTSUPP;
1925}
1926
1927static int rndis_get_tx_power(struct wiphy *wiphy,
1928 struct wireless_dev *wdev,
1929 int *dbm)
1930{
1931 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1932 struct usbnet *usbdev = priv->usbdev;
1933
1934 *dbm = get_bcm4320_power_dbm(priv);
1935
1936 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1937
1938 return 0;
1939}
1940
1941#define SCAN_DELAY_JIFFIES (6 * HZ)
1942static int rndis_scan(struct wiphy *wiphy,
1943 struct cfg80211_scan_request *request)
1944{
1945 struct net_device *dev = request->wdev->netdev;
1946 struct usbnet *usbdev = netdev_priv(dev);
1947 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1948 int ret;
1949 int delay = SCAN_DELAY_JIFFIES;
1950
1951 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1952
1953
1954
1955
1956 rndis_check_bssid_list(usbdev, NULL, NULL);
1957
1958 if (priv->scan_request && priv->scan_request != request)
1959 return -EBUSY;
1960
1961 priv->scan_request = request;
1962
1963 ret = rndis_start_bssid_list_scan(usbdev);
1964 if (ret == 0) {
1965 if (priv->device_type == RNDIS_BCM4320A)
1966 delay = HZ;
1967
1968
1969 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1970 }
1971
1972 return ret;
1973}
1974
1975static bool rndis_bss_info_update(struct usbnet *usbdev,
1976 struct ndis_80211_bssid_ex *bssid)
1977{
1978 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1979 struct ieee80211_channel *channel;
1980 struct cfg80211_bss *bss;
1981 s32 signal;
1982 u64 timestamp;
1983 u16 capability;
1984 u16 beacon_interval;
1985 struct ndis_80211_fixed_ies *fixed;
1986 int ie_len, bssid_len;
1987 u8 *ie;
1988
1989 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1990 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1991
1992
1993 bssid_len = le32_to_cpu(bssid->length);
1994
1995 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1996 sizeof(struct ndis_80211_fixed_ies))
1997 return NULL;
1998
1999 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2000
2001 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2002 ie_len = min(bssid_len - (int)sizeof(*bssid),
2003 (int)le32_to_cpu(bssid->ie_length));
2004 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2005 if (ie_len < 0)
2006 return NULL;
2007
2008
2009 channel = ieee80211_get_channel(priv->wdev.wiphy,
2010 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2011 if (!channel)
2012 return NULL;
2013
2014 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2015 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2016 capability = le16_to_cpu(fixed->capabilities);
2017 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2018
2019 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
2020 CFG80211_BSS_FTYPE_UNKNOWN, bssid->mac,
2021 timestamp, capability, beacon_interval,
2022 ie, ie_len, signal, GFP_KERNEL);
2023 cfg80211_put_bss(priv->wdev.wiphy, bss);
2024
2025 return (bss != NULL);
2026}
2027
2028static struct ndis_80211_bssid_ex *next_bssid_list_item(
2029 struct ndis_80211_bssid_ex *bssid,
2030 int *bssid_len, void *buf, int len)
2031{
2032 void *buf_end, *bssid_end;
2033
2034 buf_end = (char *)buf + len;
2035 bssid_end = (char *)bssid + *bssid_len;
2036
2037 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2038 *bssid_len = 0;
2039 return NULL;
2040 } else {
2041 bssid = (void *)((char *)bssid + *bssid_len);
2042 *bssid_len = le32_to_cpu(bssid->length);
2043 return bssid;
2044 }
2045}
2046
2047static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2048 int bssid_len, void *buf, int len)
2049{
2050 void *buf_end, *bssid_end;
2051
2052 if (!bssid || bssid_len <= 0 || bssid_len > len)
2053 return false;
2054
2055 buf_end = (char *)buf + len;
2056 bssid_end = (char *)bssid + bssid_len;
2057
2058 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2059}
2060
2061static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2062 bool *matched)
2063{
2064 void *buf = NULL;
2065 struct ndis_80211_bssid_list_ex *bssid_list;
2066 struct ndis_80211_bssid_ex *bssid;
2067 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2068
2069 netdev_dbg(usbdev->net, "%s()\n", __func__);
2070
2071 len = CONTROL_BUFFER_SIZE;
2072resize_buf:
2073 buf = kzalloc(len, GFP_KERNEL);
2074 if (!buf) {
2075 ret = -ENOMEM;
2076 goto out;
2077 }
2078
2079
2080
2081
2082 new_len = len;
2083 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2084 buf, &new_len);
2085 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2086 goto out;
2087
2088 if (new_len > len) {
2089 len = new_len;
2090 kfree(buf);
2091 goto resize_buf;
2092 }
2093
2094 len = new_len;
2095
2096 bssid_list = buf;
2097 count = le32_to_cpu(bssid_list->num_items);
2098 real_count = 0;
2099 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2100
2101 bssid_len = 0;
2102 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2103
2104
2105
2106
2107 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2108 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2109 matched) {
2110 if (ether_addr_equal(bssid->mac, match_bssid))
2111 *matched = true;
2112 }
2113
2114 real_count++;
2115 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2116 }
2117
2118 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2119 " %d\n", __func__, count, real_count);
2120
2121out:
2122 kfree(buf);
2123 return ret;
2124}
2125
2126static void rndis_get_scan_results(struct work_struct *work)
2127{
2128 struct rndis_wlan_private *priv =
2129 container_of(work, struct rndis_wlan_private, scan_work.work);
2130 struct usbnet *usbdev = priv->usbdev;
2131 struct cfg80211_scan_info info = {};
2132 int ret;
2133
2134 netdev_dbg(usbdev->net, "get_scan_results\n");
2135
2136 if (!priv->scan_request)
2137 return;
2138
2139 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2140
2141 info.aborted = ret < 0;
2142 cfg80211_scan_done(priv->scan_request, &info);
2143
2144 priv->scan_request = NULL;
2145}
2146
2147static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2148 struct cfg80211_connect_params *sme)
2149{
2150 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2151 struct usbnet *usbdev = priv->usbdev;
2152 struct ieee80211_channel *channel = sme->channel;
2153 struct ndis_80211_ssid ssid;
2154 int pairwise = RNDIS_WLAN_ALG_NONE;
2155 int groupwise = RNDIS_WLAN_ALG_NONE;
2156 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2157 int length, i, ret, chan = -1;
2158
2159 if (channel)
2160 chan = ieee80211_frequency_to_channel(channel->center_freq);
2161
2162 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2163 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2164 pairwise |=
2165 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2166
2167 if (sme->crypto.n_ciphers_pairwise > 0 &&
2168 pairwise == RNDIS_WLAN_ALG_NONE) {
2169 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2170 return -ENOTSUPP;
2171 }
2172
2173 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2174 keymgmt |=
2175 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2176
2177 if (sme->crypto.n_akm_suites > 0 &&
2178 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2179 netdev_err(usbdev->net, "Invalid keymgmt\n");
2180 return -ENOTSUPP;
2181 }
2182
2183 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2184 sme->ssid, sme->bssid, chan,
2185 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2186 groupwise, pairwise, keymgmt);
2187
2188 if (is_associated(usbdev))
2189 disassociate(usbdev, false);
2190
2191 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2192 if (ret < 0) {
2193 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2194 ret);
2195 goto err_turn_radio_on;
2196 }
2197
2198 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2199 keymgmt);
2200 if (ret < 0) {
2201 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2202 ret);
2203 goto err_turn_radio_on;
2204 }
2205
2206 set_priv_filter(usbdev);
2207
2208 ret = set_encr_mode(usbdev, pairwise, groupwise);
2209 if (ret < 0) {
2210 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2211 ret);
2212 goto err_turn_radio_on;
2213 }
2214
2215 if (channel) {
2216 ret = set_channel(usbdev, chan);
2217 if (ret < 0) {
2218 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2219 ret);
2220 goto err_turn_radio_on;
2221 }
2222 }
2223
2224 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2225 priv->encr_tx_key_index = sme->key_idx;
2226 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2227 if (ret < 0) {
2228 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2229 ret, sme->key_len, sme->key_idx);
2230 goto err_turn_radio_on;
2231 }
2232 }
2233
2234 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2235 !is_broadcast_ether_addr(sme->bssid)) {
2236 ret = set_bssid(usbdev, sme->bssid);
2237 if (ret < 0) {
2238 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2239 ret);
2240 goto err_turn_radio_on;
2241 }
2242 } else
2243 clear_bssid(usbdev);
2244
2245 length = sme->ssid_len;
2246 if (length > NDIS_802_11_LENGTH_SSID)
2247 length = NDIS_802_11_LENGTH_SSID;
2248
2249 memset(&ssid, 0, sizeof(ssid));
2250 ssid.length = cpu_to_le32(length);
2251 memcpy(ssid.essid, sme->ssid, length);
2252
2253
2254
2255
2256 usbnet_pause_rx(usbdev);
2257 usbnet_purge_paused_rxq(usbdev);
2258
2259 ret = set_essid(usbdev, &ssid);
2260 if (ret < 0)
2261 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2262 return ret;
2263
2264err_turn_radio_on:
2265 disassociate(usbdev, true);
2266
2267 return ret;
2268}
2269
2270static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2271 u16 reason_code)
2272{
2273 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2274 struct usbnet *usbdev = priv->usbdev;
2275
2276 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2277
2278 priv->connected = false;
2279 eth_zero_addr(priv->bssid);
2280
2281 return deauthenticate(usbdev);
2282}
2283
2284static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2285 struct cfg80211_ibss_params *params)
2286{
2287 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2288 struct usbnet *usbdev = priv->usbdev;
2289 struct ieee80211_channel *channel = params->chandef.chan;
2290 struct ndis_80211_ssid ssid;
2291 enum nl80211_auth_type auth_type;
2292 int ret, alg, length, chan = -1;
2293
2294 if (channel)
2295 chan = ieee80211_frequency_to_channel(channel->center_freq);
2296
2297
2298
2299
2300
2301
2302 if (params->privacy) {
2303 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2304 alg = RNDIS_WLAN_ALG_WEP;
2305 } else {
2306 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2307 alg = RNDIS_WLAN_ALG_NONE;
2308 }
2309
2310 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2311 params->ssid, params->bssid, chan, params->privacy);
2312
2313 if (is_associated(usbdev))
2314 disassociate(usbdev, false);
2315
2316 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2317 if (ret < 0) {
2318 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2319 ret);
2320 goto err_turn_radio_on;
2321 }
2322
2323 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2324 if (ret < 0) {
2325 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2326 ret);
2327 goto err_turn_radio_on;
2328 }
2329
2330 set_priv_filter(usbdev);
2331
2332 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2333 if (ret < 0) {
2334 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2335 ret);
2336 goto err_turn_radio_on;
2337 }
2338
2339 if (channel) {
2340 ret = set_channel(usbdev, chan);
2341 if (ret < 0) {
2342 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2343 ret);
2344 goto err_turn_radio_on;
2345 }
2346 }
2347
2348 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2349 !is_broadcast_ether_addr(params->bssid)) {
2350 ret = set_bssid(usbdev, params->bssid);
2351 if (ret < 0) {
2352 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2353 ret);
2354 goto err_turn_radio_on;
2355 }
2356 } else
2357 clear_bssid(usbdev);
2358
2359 length = params->ssid_len;
2360 if (length > NDIS_802_11_LENGTH_SSID)
2361 length = NDIS_802_11_LENGTH_SSID;
2362
2363 memset(&ssid, 0, sizeof(ssid));
2364 ssid.length = cpu_to_le32(length);
2365 memcpy(ssid.essid, params->ssid, length);
2366
2367
2368 usbnet_purge_paused_rxq(usbdev);
2369 usbnet_resume_rx(usbdev);
2370
2371 ret = set_essid(usbdev, &ssid);
2372 if (ret < 0)
2373 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2374 ret);
2375 return ret;
2376
2377err_turn_radio_on:
2378 disassociate(usbdev, true);
2379
2380 return ret;
2381}
2382
2383static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2384{
2385 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2386 struct usbnet *usbdev = priv->usbdev;
2387
2388 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2389
2390 priv->connected = false;
2391 eth_zero_addr(priv->bssid);
2392
2393 return deauthenticate(usbdev);
2394}
2395
2396static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2397 u8 key_index, bool pairwise, const u8 *mac_addr,
2398 struct key_params *params)
2399{
2400 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2401 struct usbnet *usbdev = priv->usbdev;
2402 __le32 flags;
2403
2404 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2405 __func__, key_index, mac_addr, params->cipher);
2406
2407 switch (params->cipher) {
2408 case WLAN_CIPHER_SUITE_WEP40:
2409 case WLAN_CIPHER_SUITE_WEP104:
2410 return add_wep_key(usbdev, params->key, params->key_len,
2411 key_index);
2412 case WLAN_CIPHER_SUITE_TKIP:
2413 case WLAN_CIPHER_SUITE_CCMP:
2414 flags = 0;
2415
2416 if (params->seq && params->seq_len > 0)
2417 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2418 if (mac_addr)
2419 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2420 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2421
2422 return add_wpa_key(usbdev, params->key, params->key_len,
2423 key_index, mac_addr, params->seq,
2424 params->seq_len, params->cipher, flags);
2425 default:
2426 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2427 __func__, params->cipher);
2428 return -ENOTSUPP;
2429 }
2430}
2431
2432static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2433 u8 key_index, bool pairwise, const u8 *mac_addr)
2434{
2435 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2436 struct usbnet *usbdev = priv->usbdev;
2437
2438 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2439
2440 return remove_key(usbdev, key_index, mac_addr);
2441}
2442
2443static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2444 u8 key_index, bool unicast, bool multicast)
2445{
2446 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2447 struct usbnet *usbdev = priv->usbdev;
2448 struct rndis_wlan_encr_key key;
2449
2450 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2451
2452 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2453 return -ENOENT;
2454
2455 priv->encr_tx_key_index = key_index;
2456
2457 if (is_wpa_key(priv, key_index))
2458 return 0;
2459
2460 key = priv->encr_keys[key_index];
2461
2462 return add_wep_key(usbdev, key.material, key.len, key_index);
2463}
2464
2465static void rndis_fill_station_info(struct usbnet *usbdev,
2466 struct station_info *sinfo)
2467{
2468 __le32 linkspeed, rssi;
2469 int ret, len;
2470
2471 memset(sinfo, 0, sizeof(*sinfo));
2472
2473 len = sizeof(linkspeed);
2474 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2475 if (ret == 0) {
2476 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2477 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
2478 }
2479
2480 len = sizeof(rssi);
2481 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2482 &rssi, &len);
2483 if (ret == 0) {
2484 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2485 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
2486 }
2487}
2488
2489static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2490 const u8 *mac, struct station_info *sinfo)
2491{
2492 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2493 struct usbnet *usbdev = priv->usbdev;
2494
2495 if (!ether_addr_equal(priv->bssid, mac))
2496 return -ENOENT;
2497
2498 rndis_fill_station_info(usbdev, sinfo);
2499
2500 return 0;
2501}
2502
2503static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2504 int idx, u8 *mac, struct station_info *sinfo)
2505{
2506 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2507 struct usbnet *usbdev = priv->usbdev;
2508
2509 if (idx != 0)
2510 return -ENOENT;
2511
2512 memcpy(mac, priv->bssid, ETH_ALEN);
2513
2514 rndis_fill_station_info(usbdev, sinfo);
2515
2516 return 0;
2517}
2518
2519static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2520 struct cfg80211_pmksa *pmksa)
2521{
2522 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2523 struct usbnet *usbdev = priv->usbdev;
2524 struct ndis_80211_pmkid *pmkids;
2525 u32 *tmp = (u32 *)pmksa->pmkid;
2526
2527 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2528 pmksa->bssid,
2529 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2530 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2531
2532 pmkids = get_device_pmkids(usbdev);
2533 if (IS_ERR(pmkids)) {
2534
2535 return PTR_ERR(pmkids);
2536 }
2537
2538 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2539 if (IS_ERR(pmkids)) {
2540
2541 return PTR_ERR(pmkids);
2542 }
2543
2544 return set_device_pmkids(usbdev, pmkids);
2545}
2546
2547static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2548 struct cfg80211_pmksa *pmksa)
2549{
2550 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2551 struct usbnet *usbdev = priv->usbdev;
2552 struct ndis_80211_pmkid *pmkids;
2553 u32 *tmp = (u32 *)pmksa->pmkid;
2554
2555 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2556 pmksa->bssid,
2557 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2558 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2559
2560 pmkids = get_device_pmkids(usbdev);
2561 if (IS_ERR(pmkids)) {
2562
2563 return PTR_ERR(pmkids);
2564 }
2565
2566 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2567 if (IS_ERR(pmkids)) {
2568
2569 return PTR_ERR(pmkids);
2570 }
2571
2572 return set_device_pmkids(usbdev, pmkids);
2573}
2574
2575static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2576{
2577 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2578 struct usbnet *usbdev = priv->usbdev;
2579 struct ndis_80211_pmkid pmkid;
2580
2581 netdev_dbg(usbdev->net, "%s()\n", __func__);
2582
2583 memset(&pmkid, 0, sizeof(pmkid));
2584
2585 pmkid.length = cpu_to_le32(sizeof(pmkid));
2586 pmkid.bssid_info_count = cpu_to_le32(0);
2587
2588 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2589 &pmkid, sizeof(pmkid));
2590}
2591
2592static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2593 bool enabled, int timeout)
2594{
2595 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2596 struct usbnet *usbdev = priv->usbdev;
2597 int power_mode;
2598 __le32 mode;
2599 int ret;
2600
2601 if (priv->device_type != RNDIS_BCM4320B)
2602 return -ENOTSUPP;
2603
2604 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2605 enabled ? "enabled" : "disabled",
2606 timeout);
2607
2608 if (enabled)
2609 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2610 else
2611 power_mode = NDIS_80211_POWER_MODE_CAM;
2612
2613 if (power_mode == priv->power_mode)
2614 return 0;
2615
2616 priv->power_mode = power_mode;
2617
2618 mode = cpu_to_le32(power_mode);
2619 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2620 &mode, sizeof(mode));
2621
2622 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2623 __func__, ret);
2624
2625 return ret;
2626}
2627
2628static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2629 struct net_device *dev,
2630 s32 rssi_thold, u32 rssi_hyst)
2631{
2632 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2633
2634 priv->cqm_rssi_thold = rssi_thold;
2635 priv->cqm_rssi_hyst = rssi_hyst;
2636 priv->last_cqm_event_rssi = 0;
2637
2638 return 0;
2639}
2640
2641static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2642 struct ndis_80211_assoc_info *info)
2643{
2644 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2645 struct ieee80211_channel *channel;
2646 struct ndis_80211_ssid ssid;
2647 struct cfg80211_bss *bss;
2648 s32 signal;
2649 u64 timestamp;
2650 u16 capability;
2651 u32 beacon_period = 0;
2652 __le32 rssi;
2653 u8 ie_buf[34];
2654 int len, ret, ie_len;
2655
2656
2657 len = sizeof(rssi);
2658 rssi = 0;
2659 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2660 &rssi, &len);
2661 signal = level_to_qual(le32_to_cpu(rssi));
2662
2663 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2664 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2665 level_to_qual(le32_to_cpu(rssi)));
2666
2667
2668 if (info) {
2669 capability = le16_to_cpu(info->resp_ie.capa);
2670 } else {
2671
2672 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2673 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2674 }
2675
2676
2677 channel = get_current_channel(usbdev, &beacon_period);
2678 if (!channel) {
2679 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2680 __func__);
2681 return;
2682 }
2683
2684
2685 len = sizeof(ssid);
2686 memset(&ssid, 0, sizeof(ssid));
2687 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2688 &ssid, &len);
2689 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2690 "'%.32s'\n", __func__, ret,
2691 le32_to_cpu(ssid.length), ssid.essid);
2692
2693 if (le32_to_cpu(ssid.length) > 32)
2694 ssid.length = cpu_to_le32(32);
2695
2696 ie_buf[0] = WLAN_EID_SSID;
2697 ie_buf[1] = le32_to_cpu(ssid.length);
2698 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2699
2700 ie_len = le32_to_cpu(ssid.length) + 2;
2701
2702
2703 timestamp = 0;
2704
2705 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2706 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2707 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2708 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2709 ssid.essid, signal);
2710
2711 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel,
2712 CFG80211_BSS_FTYPE_UNKNOWN, bssid,
2713 timestamp, capability, beacon_period,
2714 ie_buf, ie_len, signal, GFP_KERNEL);
2715 cfg80211_put_bss(priv->wdev.wiphy, bss);
2716}
2717
2718
2719
2720
2721static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2722{
2723 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2724 struct ndis_80211_assoc_info *info = NULL;
2725 u8 bssid[ETH_ALEN];
2726 unsigned int resp_ie_len, req_ie_len;
2727 unsigned int offset;
2728 u8 *req_ie, *resp_ie;
2729 int ret;
2730 bool roamed = false;
2731 bool match_bss;
2732
2733 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2734
2735
2736 roamed = true;
2737 }
2738
2739 req_ie_len = 0;
2740 resp_ie_len = 0;
2741 req_ie = NULL;
2742 resp_ie = NULL;
2743
2744 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2745 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2746 if (!info) {
2747
2748 set_bit(WORK_LINK_UP, &priv->work_pending);
2749 queue_work(priv->workqueue, &priv->work);
2750 return;
2751 }
2752
2753
2754 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2755 if (!ret) {
2756 req_ie_len = le32_to_cpu(info->req_ie_length);
2757 if (req_ie_len > CONTROL_BUFFER_SIZE)
2758 req_ie_len = CONTROL_BUFFER_SIZE;
2759 if (req_ie_len != 0) {
2760 offset = le32_to_cpu(info->offset_req_ies);
2761
2762 if (offset > CONTROL_BUFFER_SIZE)
2763 offset = CONTROL_BUFFER_SIZE;
2764
2765 req_ie = (u8 *)info + offset;
2766
2767 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2768 req_ie_len =
2769 CONTROL_BUFFER_SIZE - offset;
2770 }
2771
2772 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2773 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2774 resp_ie_len = CONTROL_BUFFER_SIZE;
2775 if (resp_ie_len != 0) {
2776 offset = le32_to_cpu(info->offset_resp_ies);
2777
2778 if (offset > CONTROL_BUFFER_SIZE)
2779 offset = CONTROL_BUFFER_SIZE;
2780
2781 resp_ie = (u8 *)info + offset;
2782
2783 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2784 resp_ie_len =
2785 CONTROL_BUFFER_SIZE - offset;
2786 }
2787 } else {
2788
2789
2790
2791
2792 kfree(info);
2793 info = NULL;
2794 }
2795 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2796 return;
2797
2798 ret = get_bssid(usbdev, bssid);
2799 if (ret < 0)
2800 memset(bssid, 0, sizeof(bssid));
2801
2802 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2803 bssid, roamed ? " roamed" : "");
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816 match_bss = false;
2817 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2818
2819 if (!is_zero_ether_addr(bssid) && !match_bss) {
2820
2821
2822
2823 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2824 }
2825
2826 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2827 if (!roamed) {
2828 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2829 req_ie_len, resp_ie,
2830 resp_ie_len, 0, GFP_KERNEL);
2831 } else {
2832 struct cfg80211_roam_info roam_info = {
2833 .channel = get_current_channel(usbdev, NULL),
2834 .bssid = bssid,
2835 .req_ie = req_ie,
2836 .req_ie_len = req_ie_len,
2837 .resp_ie = resp_ie,
2838 .resp_ie_len = resp_ie_len,
2839 };
2840
2841 cfg80211_roamed(usbdev->net, &roam_info, GFP_KERNEL);
2842 }
2843 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2844 cfg80211_ibss_joined(usbdev->net, bssid,
2845 get_current_channel(usbdev, NULL),
2846 GFP_KERNEL);
2847
2848 kfree(info);
2849
2850 priv->connected = true;
2851 memcpy(priv->bssid, bssid, ETH_ALEN);
2852
2853 usbnet_resume_rx(usbdev);
2854 netif_carrier_on(usbdev->net);
2855}
2856
2857static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2858{
2859 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2860
2861 if (priv->connected) {
2862 priv->connected = false;
2863 eth_zero_addr(priv->bssid);
2864
2865 deauthenticate(usbdev);
2866
2867 cfg80211_disconnected(usbdev->net, 0, NULL, 0, true, GFP_KERNEL);
2868 }
2869
2870 netif_carrier_off(usbdev->net);
2871}
2872
2873static void rndis_wlan_worker(struct work_struct *work)
2874{
2875 struct rndis_wlan_private *priv =
2876 container_of(work, struct rndis_wlan_private, work);
2877 struct usbnet *usbdev = priv->usbdev;
2878
2879 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2880 rndis_wlan_do_link_up_work(usbdev);
2881
2882 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2883 rndis_wlan_do_link_down_work(usbdev);
2884
2885 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2886 set_multicast_list(usbdev);
2887}
2888
2889static void rndis_wlan_set_multicast_list(struct net_device *dev)
2890{
2891 struct usbnet *usbdev = netdev_priv(dev);
2892 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2893
2894 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2895 return;
2896
2897 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2898 queue_work(priv->workqueue, &priv->work);
2899}
2900
2901static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2902 struct ndis_80211_status_indication *indication,
2903 int len)
2904{
2905 u8 *buf;
2906 const char *type;
2907 int flags, buflen, key_id;
2908 bool pairwise_error, group_error;
2909 struct ndis_80211_auth_request *auth_req;
2910 enum nl80211_key_type key_type;
2911
2912
2913 if (len < offsetof(struct ndis_80211_status_indication, u) +
2914 sizeof(struct ndis_80211_auth_request)) {
2915 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2916 len);
2917 return;
2918 }
2919
2920 buf = (void *)&indication->u.auth_request[0];
2921 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2922
2923 while (buflen >= sizeof(*auth_req)) {
2924 auth_req = (void *)buf;
2925 type = "unknown";
2926 flags = le32_to_cpu(auth_req->flags);
2927 pairwise_error = false;
2928 group_error = false;
2929
2930 if (flags & 0x1)
2931 type = "reauth request";
2932 if (flags & 0x2)
2933 type = "key update request";
2934 if (flags & 0x6) {
2935 pairwise_error = true;
2936 type = "pairwise_error";
2937 }
2938 if (flags & 0xe) {
2939 group_error = true;
2940 type = "group_error";
2941 }
2942
2943 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2944 type, le32_to_cpu(auth_req->flags));
2945
2946 if (pairwise_error) {
2947 key_type = NL80211_KEYTYPE_PAIRWISE;
2948 key_id = -1;
2949
2950 cfg80211_michael_mic_failure(usbdev->net,
2951 auth_req->bssid,
2952 key_type, key_id, NULL,
2953 GFP_KERNEL);
2954 }
2955
2956 if (group_error) {
2957 key_type = NL80211_KEYTYPE_GROUP;
2958 key_id = -1;
2959
2960 cfg80211_michael_mic_failure(usbdev->net,
2961 auth_req->bssid,
2962 key_type, key_id, NULL,
2963 GFP_KERNEL);
2964 }
2965
2966 buflen -= le32_to_cpu(auth_req->length);
2967 buf += le32_to_cpu(auth_req->length);
2968 }
2969}
2970
2971static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2972 struct ndis_80211_status_indication *indication,
2973 int len)
2974{
2975 struct ndis_80211_pmkid_cand_list *cand_list;
2976 int list_len, expected_len, i;
2977
2978 if (len < offsetof(struct ndis_80211_status_indication, u) +
2979 sizeof(struct ndis_80211_pmkid_cand_list)) {
2980 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2981 len);
2982 return;
2983 }
2984
2985 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2986 sizeof(struct ndis_80211_pmkid_candidate);
2987 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2988 offsetof(struct ndis_80211_status_indication, u);
2989
2990 if (len < expected_len) {
2991 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2992 len, expected_len);
2993 return;
2994 }
2995
2996 cand_list = &indication->u.cand_list;
2997
2998 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2999 le32_to_cpu(cand_list->version),
3000 le32_to_cpu(cand_list->num_candidates));
3001
3002 if (le32_to_cpu(cand_list->version) != 1)
3003 return;
3004
3005 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3006 struct ndis_80211_pmkid_candidate *cand =
3007 &cand_list->candidate_list[i];
3008 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3009
3010 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3011 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3012
3013 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3014 preauth, GFP_ATOMIC);
3015 }
3016}
3017
3018static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3019 struct rndis_indicate *msg, int buflen)
3020{
3021 struct ndis_80211_status_indication *indication;
3022 unsigned int len, offset;
3023
3024 offset = offsetof(struct rndis_indicate, status) +
3025 le32_to_cpu(msg->offset);
3026 len = le32_to_cpu(msg->length);
3027
3028 if (len < 8) {
3029 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3030 len);
3031 return;
3032 }
3033
3034 if (len > buflen || offset > buflen || offset + len > buflen) {
3035 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3036 offset + len, buflen);
3037 return;
3038 }
3039
3040 indication = (void *)((u8 *)msg + offset);
3041
3042 switch (le32_to_cpu(indication->status_type)) {
3043 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3044 netdev_info(usbdev->net, "radio state indication: %i\n",
3045 le32_to_cpu(indication->u.radio_status));
3046 return;
3047
3048 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3049 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3050 le32_to_cpu(indication->u.media_stream_mode));
3051 return;
3052
3053 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3054 rndis_wlan_auth_indication(usbdev, indication, len);
3055 return;
3056
3057 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3058 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3059 return;
3060
3061 default:
3062 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3063 le32_to_cpu(indication->status_type));
3064 }
3065}
3066
3067static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3068{
3069 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3070 struct rndis_indicate *msg = ind;
3071
3072 switch (le32_to_cpu(msg->status)) {
3073 case RNDIS_STATUS_MEDIA_CONNECT:
3074 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3075
3076
3077
3078
3079
3080 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3081 return;
3082 }
3083
3084 usbnet_pause_rx(usbdev);
3085
3086 netdev_info(usbdev->net, "media connect\n");
3087
3088
3089 set_bit(WORK_LINK_UP, &priv->work_pending);
3090 queue_work(priv->workqueue, &priv->work);
3091 break;
3092
3093 case RNDIS_STATUS_MEDIA_DISCONNECT:
3094 netdev_info(usbdev->net, "media disconnect\n");
3095
3096
3097 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3098 queue_work(priv->workqueue, &priv->work);
3099 break;
3100
3101 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3102 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3103 break;
3104
3105 default:
3106 netdev_info(usbdev->net, "indication: 0x%08x\n",
3107 le32_to_cpu(msg->status));
3108 break;
3109 }
3110}
3111
3112static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3113{
3114 struct {
3115 __le32 num_items;
3116 __le32 items[8];
3117 } networks_supported;
3118 struct ndis_80211_capability caps;
3119 int len, retval, i, n;
3120 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3121
3122
3123 len = sizeof(networks_supported);
3124 retval = rndis_query_oid(usbdev,
3125 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3126 &networks_supported, &len);
3127 if (retval >= 0) {
3128 n = le32_to_cpu(networks_supported.num_items);
3129 if (n > 8)
3130 n = 8;
3131 for (i = 0; i < n; i++) {
3132 switch (le32_to_cpu(networks_supported.items[i])) {
3133 case NDIS_80211_TYPE_FREQ_HOP:
3134 case NDIS_80211_TYPE_DIRECT_SEQ:
3135 priv->caps |= CAP_MODE_80211B;
3136 break;
3137 case NDIS_80211_TYPE_OFDM_A:
3138 priv->caps |= CAP_MODE_80211A;
3139 break;
3140 case NDIS_80211_TYPE_OFDM_G:
3141 priv->caps |= CAP_MODE_80211G;
3142 break;
3143 }
3144 }
3145 }
3146
3147
3148 len = sizeof(caps);
3149 retval = rndis_query_oid(usbdev,
3150 RNDIS_OID_802_11_CAPABILITY,
3151 &caps, &len);
3152 if (retval >= 0) {
3153 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3154 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3155 le32_to_cpu(caps.length),
3156 le32_to_cpu(caps.version),
3157 le32_to_cpu(caps.num_pmkids),
3158 le32_to_cpu(caps.num_auth_encr_pair));
3159 wiphy->max_num_pmkids = le32_to_cpu(caps.num_pmkids);
3160 } else
3161 wiphy->max_num_pmkids = 0;
3162
3163 return retval;
3164}
3165
3166static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3167{
3168 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3169 enum nl80211_cqm_rssi_threshold_event event;
3170 int thold, hyst, last_event;
3171
3172 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3173 return;
3174 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3175 return;
3176
3177 last_event = priv->last_cqm_event_rssi;
3178 thold = priv->cqm_rssi_thold;
3179 hyst = priv->cqm_rssi_hyst;
3180
3181 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3182 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3183 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3184 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3185 else
3186 return;
3187
3188 priv->last_cqm_event_rssi = rssi;
3189 cfg80211_cqm_rssi_notify(usbdev->net, event, rssi, GFP_KERNEL);
3190}
3191
3192#define DEVICE_POLLER_JIFFIES (HZ)
3193static void rndis_device_poller(struct work_struct *work)
3194{
3195 struct rndis_wlan_private *priv =
3196 container_of(work, struct rndis_wlan_private,
3197 dev_poller_work.work);
3198 struct usbnet *usbdev = priv->usbdev;
3199 __le32 rssi, tmp;
3200 int len, ret, j;
3201 int update_jiffies = DEVICE_POLLER_JIFFIES;
3202 void *buf;
3203
3204
3205
3206
3207
3208 if (!is_associated(usbdev)) {
3209
3210
3211
3212 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3213 !priv->scan_request) {
3214
3215 rndis_check_bssid_list(usbdev, NULL, NULL);
3216
3217
3218 rndis_start_bssid_list_scan(usbdev);
3219 }
3220
3221 goto end;
3222 }
3223
3224 len = sizeof(rssi);
3225 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3226 &rssi, &len);
3227 if (ret == 0) {
3228 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3229 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3230 }
3231
3232 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3233 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3234
3235
3236
3237
3238 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3239
3240
3241
3242
3243 j = msecs_to_jiffies(priv->param_workaround_interval);
3244 if (j > DEVICE_POLLER_JIFFIES)
3245 j = DEVICE_POLLER_JIFFIES;
3246 else if (j <= 0)
3247 j = 1;
3248 update_jiffies = j;
3249
3250
3251
3252
3253 tmp = cpu_to_le32(1);
3254 rndis_set_oid(usbdev,
3255 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3256 &tmp, sizeof(tmp));
3257
3258 len = CONTROL_BUFFER_SIZE;
3259 buf = kmalloc(len, GFP_KERNEL);
3260 if (!buf)
3261 goto end;
3262
3263 rndis_query_oid(usbdev,
3264 RNDIS_OID_802_11_BSSID_LIST,
3265 buf, &len);
3266 kfree(buf);
3267 }
3268
3269end:
3270 if (update_jiffies >= HZ)
3271 update_jiffies = round_jiffies_relative(update_jiffies);
3272 else {
3273 j = round_jiffies_relative(update_jiffies);
3274 if (abs(j - update_jiffies) <= 10)
3275 update_jiffies = j;
3276 }
3277
3278 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3279 update_jiffies);
3280}
3281
3282
3283
3284
3285static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3286{
3287 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3288
3289 priv->device_type = device_type;
3290
3291 priv->param_country[0] = modparam_country[0];
3292 priv->param_country[1] = modparam_country[1];
3293 priv->param_country[2] = 0;
3294 priv->param_frameburst = modparam_frameburst;
3295 priv->param_afterburner = modparam_afterburner;
3296 priv->param_power_save = modparam_power_save;
3297 priv->param_power_output = modparam_power_output;
3298 priv->param_roamtrigger = modparam_roamtrigger;
3299 priv->param_roamdelta = modparam_roamdelta;
3300
3301 priv->param_country[0] = toupper(priv->param_country[0]);
3302 priv->param_country[1] = toupper(priv->param_country[1]);
3303
3304 if (!strcmp(priv->param_country, "EU"))
3305 strcpy(priv->param_country, "FI");
3306
3307 if (priv->param_power_save < 0)
3308 priv->param_power_save = 0;
3309 else if (priv->param_power_save > 2)
3310 priv->param_power_save = 2;
3311
3312 if (priv->param_power_output < 0)
3313 priv->param_power_output = 0;
3314 else if (priv->param_power_output > 3)
3315 priv->param_power_output = 3;
3316
3317 if (priv->param_roamtrigger < -80)
3318 priv->param_roamtrigger = -80;
3319 else if (priv->param_roamtrigger > -60)
3320 priv->param_roamtrigger = -60;
3321
3322 if (priv->param_roamdelta < 0)
3323 priv->param_roamdelta = 0;
3324 else if (priv->param_roamdelta > 2)
3325 priv->param_roamdelta = 2;
3326
3327 if (modparam_workaround_interval < 0)
3328 priv->param_workaround_interval = 500;
3329 else
3330 priv->param_workaround_interval = modparam_workaround_interval;
3331}
3332
3333static int unknown_early_init(struct usbnet *usbdev)
3334{
3335
3336
3337
3338 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3339
3340
3341
3342
3343 return 0;
3344}
3345
3346static int bcm4320a_early_init(struct usbnet *usbdev)
3347{
3348
3349
3350
3351 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3352
3353
3354
3355
3356
3357 return 0;
3358}
3359
3360static int bcm4320b_early_init(struct usbnet *usbdev)
3361{
3362 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3363 char buf[8];
3364
3365 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3366
3367
3368
3369
3370
3371 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3372 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3373 priv->param_frameburst ? "1" : "0");
3374 rndis_set_config_parameter_str(usbdev, "Afterburner",
3375 priv->param_afterburner ? "1" : "0");
3376 sprintf(buf, "%d", priv->param_power_save);
3377 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3378 sprintf(buf, "%d", priv->param_power_output);
3379 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3380 sprintf(buf, "%d", priv->param_roamtrigger);
3381 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3382 sprintf(buf, "%d", priv->param_roamdelta);
3383 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3384
3385 return 0;
3386}
3387
3388
3389static const struct net_device_ops rndis_wlan_netdev_ops = {
3390 .ndo_open = usbnet_open,
3391 .ndo_stop = usbnet_stop,
3392 .ndo_start_xmit = usbnet_start_xmit,
3393 .ndo_tx_timeout = usbnet_tx_timeout,
3394 .ndo_get_stats64 = usbnet_get_stats64,
3395 .ndo_set_mac_address = eth_mac_addr,
3396 .ndo_validate_addr = eth_validate_addr,
3397 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3398};
3399
3400static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3401{
3402 struct wiphy *wiphy;
3403 struct rndis_wlan_private *priv;
3404 int retval, len;
3405 __le32 tmp;
3406
3407
3408
3409
3410
3411 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3412 if (!wiphy)
3413 return -ENOMEM;
3414
3415 priv = wiphy_priv(wiphy);
3416 usbdev->net->ieee80211_ptr = &priv->wdev;
3417 priv->wdev.wiphy = wiphy;
3418 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3419
3420
3421
3422
3423 usbdev->driver_priv = priv;
3424 priv->usbdev = usbdev;
3425
3426 mutex_init(&priv->command_lock);
3427
3428
3429 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3430 if (!priv->workqueue) {
3431 wiphy_free(wiphy);
3432 return -ENOMEM;
3433 }
3434 INIT_WORK(&priv->work, rndis_wlan_worker);
3435 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3436 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3437
3438
3439 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3440 if (retval < 0)
3441 goto fail;
3442
3443
3444
3445
3446
3447
3448
3449
3450 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3451
3452 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3453 retval = rndis_set_oid(usbdev,
3454 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3455 &tmp, sizeof(tmp));
3456
3457 len = sizeof(tmp);
3458 retval = rndis_query_oid(usbdev,
3459 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3460 &tmp, &len);
3461 priv->multicast_size = le32_to_cpu(tmp);
3462 if (retval < 0 || priv->multicast_size < 0)
3463 priv->multicast_size = 0;
3464 if (priv->multicast_size > 0)
3465 usbdev->net->flags |= IFF_MULTICAST;
3466 else
3467 usbdev->net->flags &= ~IFF_MULTICAST;
3468
3469
3470 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3471 wiphy->privid = rndis_wiphy_privid;
3472 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3473 | BIT(NL80211_IFTYPE_ADHOC);
3474 wiphy->max_scan_ssids = 1;
3475
3476
3477 rndis_wlan_get_caps(usbdev, wiphy);
3478
3479 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3480 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3481 priv->band.channels = priv->channels;
3482 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3483 priv->band.bitrates = priv->rates;
3484 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3485 wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
3486 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3487
3488 memcpy(priv->cipher_suites, rndis_cipher_suites,
3489 sizeof(rndis_cipher_suites));
3490 wiphy->cipher_suites = priv->cipher_suites;
3491 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3492
3493 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3494
3495 if (wiphy_register(wiphy)) {
3496 retval = -ENODEV;
3497 goto fail;
3498 }
3499
3500 set_default_iw_params(usbdev);
3501
3502 priv->power_mode = -1;
3503
3504
3505 rndis_set_wiphy_params(wiphy,
3506 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3507
3508
3509 priv->radio_on = false;
3510 disassociate(usbdev, false);
3511 netif_carrier_off(usbdev->net);
3512
3513 return 0;
3514
3515fail:
3516 cancel_delayed_work_sync(&priv->dev_poller_work);
3517 cancel_delayed_work_sync(&priv->scan_work);
3518 cancel_work_sync(&priv->work);
3519 flush_workqueue(priv->workqueue);
3520 destroy_workqueue(priv->workqueue);
3521
3522 wiphy_free(wiphy);
3523 return retval;
3524}
3525
3526static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3527{
3528 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3529
3530
3531 disassociate(usbdev, false);
3532
3533 cancel_delayed_work_sync(&priv->dev_poller_work);
3534 cancel_delayed_work_sync(&priv->scan_work);
3535 cancel_work_sync(&priv->work);
3536 flush_workqueue(priv->workqueue);
3537 destroy_workqueue(priv->workqueue);
3538
3539 rndis_unbind(usbdev, intf);
3540
3541 wiphy_unregister(priv->wdev.wiphy);
3542 wiphy_free(priv->wdev.wiphy);
3543}
3544
3545static int rndis_wlan_reset(struct usbnet *usbdev)
3546{
3547 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3548 int retval;
3549
3550 netdev_dbg(usbdev->net, "%s()\n", __func__);
3551
3552 retval = rndis_reset(usbdev);
3553 if (retval)
3554 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3555
3556
3557
3558 set_multicast_list(usbdev);
3559
3560 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3561 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3562
3563 return deauthenticate(usbdev);
3564}
3565
3566static int rndis_wlan_stop(struct usbnet *usbdev)
3567{
3568 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3569 int retval;
3570 __le32 filter;
3571
3572 netdev_dbg(usbdev->net, "%s()\n", __func__);
3573
3574 retval = disassociate(usbdev, false);
3575
3576 priv->work_pending = 0;
3577 cancel_delayed_work_sync(&priv->dev_poller_work);
3578 cancel_delayed_work_sync(&priv->scan_work);
3579 cancel_work_sync(&priv->work);
3580 flush_workqueue(priv->workqueue);
3581
3582 if (priv->scan_request) {
3583 struct cfg80211_scan_info info = {
3584 .aborted = true,
3585 };
3586
3587 cfg80211_scan_done(priv->scan_request, &info);
3588 priv->scan_request = NULL;
3589 }
3590
3591
3592
3593 filter = 0;
3594 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3595 sizeof(filter));
3596
3597 return retval;
3598}
3599
3600static const struct driver_info bcm4320b_info = {
3601 .description = "Wireless RNDIS device, BCM4320b based",
3602 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3603 FLAG_AVOID_UNLINK_URBS,
3604 .bind = rndis_wlan_bind,
3605 .unbind = rndis_wlan_unbind,
3606 .status = rndis_status,
3607 .rx_fixup = rndis_rx_fixup,
3608 .tx_fixup = rndis_tx_fixup,
3609 .reset = rndis_wlan_reset,
3610 .stop = rndis_wlan_stop,
3611 .early_init = bcm4320b_early_init,
3612 .indication = rndis_wlan_indication,
3613};
3614
3615static const struct driver_info bcm4320a_info = {
3616 .description = "Wireless RNDIS device, BCM4320a based",
3617 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3618 FLAG_AVOID_UNLINK_URBS,
3619 .bind = rndis_wlan_bind,
3620 .unbind = rndis_wlan_unbind,
3621 .status = rndis_status,
3622 .rx_fixup = rndis_rx_fixup,
3623 .tx_fixup = rndis_tx_fixup,
3624 .reset = rndis_wlan_reset,
3625 .stop = rndis_wlan_stop,
3626 .early_init = bcm4320a_early_init,
3627 .indication = rndis_wlan_indication,
3628};
3629
3630static const struct driver_info rndis_wlan_info = {
3631 .description = "Wireless RNDIS device",
3632 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3633 FLAG_AVOID_UNLINK_URBS,
3634 .bind = rndis_wlan_bind,
3635 .unbind = rndis_wlan_unbind,
3636 .status = rndis_status,
3637 .rx_fixup = rndis_rx_fixup,
3638 .tx_fixup = rndis_tx_fixup,
3639 .reset = rndis_wlan_reset,
3640 .stop = rndis_wlan_stop,
3641 .early_init = unknown_early_init,
3642 .indication = rndis_wlan_indication,
3643};
3644
3645
3646
3647static const struct usb_device_id products [] = {
3648#define RNDIS_MASTER_INTERFACE \
3649 .bInterfaceClass = USB_CLASS_COMM, \
3650 .bInterfaceSubClass = 2 , \
3651 .bInterfaceProtocol = 0x0ff
3652
3653
3654
3655
3656{
3657 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3658 | USB_DEVICE_ID_MATCH_DEVICE,
3659 .idVendor = 0x0411,
3660 .idProduct = 0x00bc,
3661 RNDIS_MASTER_INTERFACE,
3662 .driver_info = (unsigned long) &bcm4320b_info,
3663}, {
3664 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3665 | USB_DEVICE_ID_MATCH_DEVICE,
3666 .idVendor = 0x0baf,
3667 .idProduct = 0x011b,
3668 RNDIS_MASTER_INTERFACE,
3669 .driver_info = (unsigned long) &bcm4320b_info,
3670}, {
3671 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3672 | USB_DEVICE_ID_MATCH_DEVICE,
3673 .idVendor = 0x050d,
3674 .idProduct = 0x011b,
3675 RNDIS_MASTER_INTERFACE,
3676 .driver_info = (unsigned long) &bcm4320b_info,
3677}, {
3678 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3679 | USB_DEVICE_ID_MATCH_DEVICE,
3680 .idVendor = 0x1799,
3681 .idProduct = 0x011b,
3682 RNDIS_MASTER_INTERFACE,
3683 .driver_info = (unsigned long) &bcm4320b_info,
3684}, {
3685 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3686 | USB_DEVICE_ID_MATCH_DEVICE,
3687 .idVendor = 0x13b1,
3688 .idProduct = 0x0014,
3689 RNDIS_MASTER_INTERFACE,
3690 .driver_info = (unsigned long) &bcm4320b_info,
3691}, {
3692 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3693 | USB_DEVICE_ID_MATCH_DEVICE,
3694 .idVendor = 0x13b1,
3695 .idProduct = 0x0026,
3696 RNDIS_MASTER_INTERFACE,
3697 .driver_info = (unsigned long) &bcm4320b_info,
3698}, {
3699 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3700 | USB_DEVICE_ID_MATCH_DEVICE,
3701 .idVendor = 0x0b05,
3702 .idProduct = 0x1717,
3703 RNDIS_MASTER_INTERFACE,
3704 .driver_info = (unsigned long) &bcm4320b_info,
3705}, {
3706 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3707 | USB_DEVICE_ID_MATCH_DEVICE,
3708 .idVendor = 0x0a5c,
3709 .idProduct = 0xd11b,
3710 RNDIS_MASTER_INTERFACE,
3711 .driver_info = (unsigned long) &bcm4320b_info,
3712}, {
3713 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3714 | USB_DEVICE_ID_MATCH_DEVICE,
3715 .idVendor = 0x1690,
3716 .idProduct = 0x0715,
3717 RNDIS_MASTER_INTERFACE,
3718 .driver_info = (unsigned long) &bcm4320b_info,
3719},
3720
3721
3722
3723
3724{
3725 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3726 | USB_DEVICE_ID_MATCH_DEVICE,
3727 .idVendor = 0x13b1,
3728 .idProduct = 0x000e,
3729 RNDIS_MASTER_INTERFACE,
3730 .driver_info = (unsigned long) &bcm4320a_info,
3731}, {
3732 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3733 | USB_DEVICE_ID_MATCH_DEVICE,
3734 .idVendor = 0x0baf,
3735 .idProduct = 0x0111,
3736 RNDIS_MASTER_INTERFACE,
3737 .driver_info = (unsigned long) &bcm4320a_info,
3738}, {
3739 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3740 | USB_DEVICE_ID_MATCH_DEVICE,
3741 .idVendor = 0x0411,
3742 .idProduct = 0x004b,
3743 RNDIS_MASTER_INTERFACE,
3744 .driver_info = (unsigned long) &bcm4320a_info,
3745},
3746
3747
3748
3749{
3750
3751 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 , 0x0ff),
3752 .driver_info = (unsigned long) &rndis_wlan_info,
3753}, {
3754
3755 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3756 .driver_info = (unsigned long) &rndis_wlan_info,
3757},
3758 { },
3759};
3760MODULE_DEVICE_TABLE(usb, products);
3761
3762static struct usb_driver rndis_wlan_driver = {
3763 .name = "rndis_wlan",
3764 .id_table = products,
3765 .probe = usbnet_probe,
3766 .disconnect = usbnet_disconnect,
3767 .suspend = usbnet_suspend,
3768 .resume = usbnet_resume,
3769 .disable_hub_initiated_lpm = 1,
3770};
3771
3772module_usb_driver(rndis_wlan_driver);
3773
3774MODULE_AUTHOR("Bjorge Dijkstra");
3775MODULE_AUTHOR("Jussi Kivilinna");
3776MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3777MODULE_LICENSE("GPL");
3778
3779
