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ALSA: hda_intel: add position_fix quirk for Asus K53E
[deliverable/linux.git] / drivers / net / wireless / rndis_wlan.c
1 /*
2 * Driver for RNDIS based wireless USB devices.
3 *
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Portions of this file are based on NDISwrapper project,
22 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
23 * http://ndiswrapper.sourceforge.net/
24 */
25
26 // #define DEBUG // error path messages, extra info
27 // #define VERBOSE // more; success messages
28
29 #include <linux/module.h>
30 #include <linux/init.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/workqueue.h>
35 #include <linux/mutex.h>
36 #include <linux/mii.h>
37 #include <linux/usb.h>
38 #include <linux/usb/cdc.h>
39 #include <linux/ieee80211.h>
40 #include <linux/if_arp.h>
41 #include <linux/ctype.h>
42 #include <linux/spinlock.h>
43 #include <linux/slab.h>
44 #include <net/cfg80211.h>
45 #include <linux/usb/usbnet.h>
46 #include <linux/usb/rndis_host.h>
47
48
49 /* NOTE: All these are settings for Broadcom chipset */
50 static char modparam_country[4] = "EU";
51 module_param_string(country, modparam_country, 4, 0444);
52 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
53
54 static int modparam_frameburst = 1;
55 module_param_named(frameburst, modparam_frameburst, int, 0444);
56 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
57
58 static int modparam_afterburner = 0;
59 module_param_named(afterburner, modparam_afterburner, int, 0444);
60 MODULE_PARM_DESC(afterburner,
61 "enable afterburner aka '125 High Speed Mode' (default: off)");
62
63 static int modparam_power_save = 0;
64 module_param_named(power_save, modparam_power_save, int, 0444);
65 MODULE_PARM_DESC(power_save,
66 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
67
68 static int modparam_power_output = 3;
69 module_param_named(power_output, modparam_power_output, int, 0444);
70 MODULE_PARM_DESC(power_output,
71 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
72
73 static int modparam_roamtrigger = -70;
74 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
75 MODULE_PARM_DESC(roamtrigger,
76 "set roaming dBm trigger: -80=optimize for distance, "
77 "-60=bandwidth (default: -70)");
78
79 static int modparam_roamdelta = 1;
80 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
81 MODULE_PARM_DESC(roamdelta,
82 "set roaming tendency: 0=aggressive, 1=moderate, "
83 "2=conservative (default: moderate)");
84
85 static int modparam_workaround_interval;
86 module_param_named(workaround_interval, modparam_workaround_interval,
87 int, 0444);
88 MODULE_PARM_DESC(workaround_interval,
89 "set stall workaround interval in msecs (0=disabled) (default: 0)");
90
91 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
92 #define WL_NOISE -96 /* typical noise level in dBm */
93 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
94
95
96 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
97 * based on wireless rndis) has default txpower of 13dBm.
98 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
99 * 100% : 20 mW ~ 13dBm
100 * 75% : 15 mW ~ 12dBm
101 * 50% : 10 mW ~ 10dBm
102 * 25% : 5 mW ~ 7dBm
103 */
104 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
105 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
106 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
107 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
108
109 /* Known device types */
110 #define RNDIS_UNKNOWN 0
111 #define RNDIS_BCM4320A 1
112 #define RNDIS_BCM4320B 2
113
114
115 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
116 * slightly modified for datatype endianess, etc
117 */
118 #define NDIS_802_11_LENGTH_SSID 32
119 #define NDIS_802_11_LENGTH_RATES 8
120 #define NDIS_802_11_LENGTH_RATES_EX 16
121
122 enum ndis_80211_net_type {
123 NDIS_80211_TYPE_FREQ_HOP,
124 NDIS_80211_TYPE_DIRECT_SEQ,
125 NDIS_80211_TYPE_OFDM_A,
126 NDIS_80211_TYPE_OFDM_G
127 };
128
129 enum ndis_80211_net_infra {
130 NDIS_80211_INFRA_ADHOC,
131 NDIS_80211_INFRA_INFRA,
132 NDIS_80211_INFRA_AUTO_UNKNOWN
133 };
134
135 enum ndis_80211_auth_mode {
136 NDIS_80211_AUTH_OPEN,
137 NDIS_80211_AUTH_SHARED,
138 NDIS_80211_AUTH_AUTO_SWITCH,
139 NDIS_80211_AUTH_WPA,
140 NDIS_80211_AUTH_WPA_PSK,
141 NDIS_80211_AUTH_WPA_NONE,
142 NDIS_80211_AUTH_WPA2,
143 NDIS_80211_AUTH_WPA2_PSK
144 };
145
146 enum ndis_80211_encr_status {
147 NDIS_80211_ENCR_WEP_ENABLED,
148 NDIS_80211_ENCR_DISABLED,
149 NDIS_80211_ENCR_WEP_KEY_ABSENT,
150 NDIS_80211_ENCR_NOT_SUPPORTED,
151 NDIS_80211_ENCR_TKIP_ENABLED,
152 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
153 NDIS_80211_ENCR_CCMP_ENABLED,
154 NDIS_80211_ENCR_CCMP_KEY_ABSENT
155 };
156
157 enum ndis_80211_priv_filter {
158 NDIS_80211_PRIV_ACCEPT_ALL,
159 NDIS_80211_PRIV_8021X_WEP
160 };
161
162 enum ndis_80211_status_type {
163 NDIS_80211_STATUSTYPE_AUTHENTICATION,
164 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
165 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
166 NDIS_80211_STATUSTYPE_RADIOSTATE,
167 };
168
169 enum ndis_80211_media_stream_mode {
170 NDIS_80211_MEDIA_STREAM_OFF,
171 NDIS_80211_MEDIA_STREAM_ON
172 };
173
174 enum ndis_80211_radio_status {
175 NDIS_80211_RADIO_STATUS_ON,
176 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
177 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
178 };
179
180 enum ndis_80211_addkey_bits {
181 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
182 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
183 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
184 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
185 };
186
187 enum ndis_80211_addwep_bits {
188 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
189 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
190 };
191
192 enum ndis_80211_power_mode {
193 NDIS_80211_POWER_MODE_CAM,
194 NDIS_80211_POWER_MODE_MAX_PSP,
195 NDIS_80211_POWER_MODE_FAST_PSP,
196 };
197
198 enum ndis_80211_pmkid_cand_list_flag_bits {
199 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
200 };
201
202 struct ndis_80211_auth_request {
203 __le32 length;
204 u8 bssid[6];
205 u8 padding[2];
206 __le32 flags;
207 } __packed;
208
209 struct ndis_80211_pmkid_candidate {
210 u8 bssid[6];
211 u8 padding[2];
212 __le32 flags;
213 } __packed;
214
215 struct ndis_80211_pmkid_cand_list {
216 __le32 version;
217 __le32 num_candidates;
218 struct ndis_80211_pmkid_candidate candidate_list[0];
219 } __packed;
220
221 struct ndis_80211_status_indication {
222 __le32 status_type;
223 union {
224 __le32 media_stream_mode;
225 __le32 radio_status;
226 struct ndis_80211_auth_request auth_request[0];
227 struct ndis_80211_pmkid_cand_list cand_list;
228 } u;
229 } __packed;
230
231 struct ndis_80211_ssid {
232 __le32 length;
233 u8 essid[NDIS_802_11_LENGTH_SSID];
234 } __packed;
235
236 struct ndis_80211_conf_freq_hop {
237 __le32 length;
238 __le32 hop_pattern;
239 __le32 hop_set;
240 __le32 dwell_time;
241 } __packed;
242
243 struct ndis_80211_conf {
244 __le32 length;
245 __le32 beacon_period;
246 __le32 atim_window;
247 __le32 ds_config;
248 struct ndis_80211_conf_freq_hop fh_config;
249 } __packed;
250
251 struct ndis_80211_bssid_ex {
252 __le32 length;
253 u8 mac[6];
254 u8 padding[2];
255 struct ndis_80211_ssid ssid;
256 __le32 privacy;
257 __le32 rssi;
258 __le32 net_type;
259 struct ndis_80211_conf config;
260 __le32 net_infra;
261 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
262 __le32 ie_length;
263 u8 ies[0];
264 } __packed;
265
266 struct ndis_80211_bssid_list_ex {
267 __le32 num_items;
268 struct ndis_80211_bssid_ex bssid[0];
269 } __packed;
270
271 struct ndis_80211_fixed_ies {
272 u8 timestamp[8];
273 __le16 beacon_interval;
274 __le16 capabilities;
275 } __packed;
276
277 struct ndis_80211_wep_key {
278 __le32 size;
279 __le32 index;
280 __le32 length;
281 u8 material[32];
282 } __packed;
283
284 struct ndis_80211_key {
285 __le32 size;
286 __le32 index;
287 __le32 length;
288 u8 bssid[6];
289 u8 padding[6];
290 u8 rsc[8];
291 u8 material[32];
292 } __packed;
293
294 struct ndis_80211_remove_key {
295 __le32 size;
296 __le32 index;
297 u8 bssid[6];
298 u8 padding[2];
299 } __packed;
300
301 struct ndis_config_param {
302 __le32 name_offs;
303 __le32 name_length;
304 __le32 type;
305 __le32 value_offs;
306 __le32 value_length;
307 } __packed;
308
309 struct ndis_80211_assoc_info {
310 __le32 length;
311 __le16 req_ies;
312 struct req_ie {
313 __le16 capa;
314 __le16 listen_interval;
315 u8 cur_ap_address[6];
316 } req_ie;
317 __le32 req_ie_length;
318 __le32 offset_req_ies;
319 __le16 resp_ies;
320 struct resp_ie {
321 __le16 capa;
322 __le16 status_code;
323 __le16 assoc_id;
324 } resp_ie;
325 __le32 resp_ie_length;
326 __le32 offset_resp_ies;
327 } __packed;
328
329 struct ndis_80211_auth_encr_pair {
330 __le32 auth_mode;
331 __le32 encr_mode;
332 } __packed;
333
334 struct ndis_80211_capability {
335 __le32 length;
336 __le32 version;
337 __le32 num_pmkids;
338 __le32 num_auth_encr_pair;
339 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
340 } __packed;
341
342 struct ndis_80211_bssid_info {
343 u8 bssid[6];
344 u8 pmkid[16];
345 } __packed;
346
347 struct ndis_80211_pmkid {
348 __le32 length;
349 __le32 bssid_info_count;
350 struct ndis_80211_bssid_info bssid_info[0];
351 } __packed;
352
353 /*
354 * private data
355 */
356 #define CAP_MODE_80211A 1
357 #define CAP_MODE_80211B 2
358 #define CAP_MODE_80211G 4
359 #define CAP_MODE_MASK 7
360
361 #define WORK_LINK_UP (1<<0)
362 #define WORK_LINK_DOWN (1<<1)
363 #define WORK_SET_MULTICAST_LIST (1<<2)
364
365 #define RNDIS_WLAN_ALG_NONE 0
366 #define RNDIS_WLAN_ALG_WEP (1<<0)
367 #define RNDIS_WLAN_ALG_TKIP (1<<1)
368 #define RNDIS_WLAN_ALG_CCMP (1<<2)
369
370 #define RNDIS_WLAN_NUM_KEYS 4
371 #define RNDIS_WLAN_KEY_MGMT_NONE 0
372 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
373 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
374
375 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
376
377 static const struct ieee80211_channel rndis_channels[] = {
378 { .center_freq = 2412 },
379 { .center_freq = 2417 },
380 { .center_freq = 2422 },
381 { .center_freq = 2427 },
382 { .center_freq = 2432 },
383 { .center_freq = 2437 },
384 { .center_freq = 2442 },
385 { .center_freq = 2447 },
386 { .center_freq = 2452 },
387 { .center_freq = 2457 },
388 { .center_freq = 2462 },
389 { .center_freq = 2467 },
390 { .center_freq = 2472 },
391 { .center_freq = 2484 },
392 };
393
394 static const struct ieee80211_rate rndis_rates[] = {
395 { .bitrate = 10 },
396 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
397 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
398 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
399 { .bitrate = 60 },
400 { .bitrate = 90 },
401 { .bitrate = 120 },
402 { .bitrate = 180 },
403 { .bitrate = 240 },
404 { .bitrate = 360 },
405 { .bitrate = 480 },
406 { .bitrate = 540 }
407 };
408
409 static const u32 rndis_cipher_suites[] = {
410 WLAN_CIPHER_SUITE_WEP40,
411 WLAN_CIPHER_SUITE_WEP104,
412 WLAN_CIPHER_SUITE_TKIP,
413 WLAN_CIPHER_SUITE_CCMP,
414 };
415
416 struct rndis_wlan_encr_key {
417 int len;
418 u32 cipher;
419 u8 material[32];
420 u8 bssid[ETH_ALEN];
421 bool pairwise;
422 bool tx_key;
423 };
424
425 /* RNDIS device private data */
426 struct rndis_wlan_private {
427 struct usbnet *usbdev;
428
429 struct wireless_dev wdev;
430
431 struct cfg80211_scan_request *scan_request;
432
433 struct workqueue_struct *workqueue;
434 struct delayed_work dev_poller_work;
435 struct delayed_work scan_work;
436 struct work_struct work;
437 struct mutex command_lock;
438 unsigned long work_pending;
439 int last_qual;
440 s32 cqm_rssi_thold;
441 u32 cqm_rssi_hyst;
442 int last_cqm_event_rssi;
443
444 struct ieee80211_supported_band band;
445 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
446 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
447 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
448
449 int device_type;
450 int caps;
451 int multicast_size;
452
453 /* module parameters */
454 char param_country[4];
455 int param_frameburst;
456 int param_afterburner;
457 int param_power_save;
458 int param_power_output;
459 int param_roamtrigger;
460 int param_roamdelta;
461 u32 param_workaround_interval;
462
463 /* hardware state */
464 bool radio_on;
465 int power_mode;
466 int infra_mode;
467 bool connected;
468 u8 bssid[ETH_ALEN];
469 u32 current_command_oid;
470
471 /* encryption stuff */
472 u8 encr_tx_key_index;
473 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
474 int wpa_version;
475
476 u8 command_buffer[COMMAND_BUFFER_SIZE];
477 };
478
479 /*
480 * cfg80211 ops
481 */
482 static int rndis_change_virtual_intf(struct wiphy *wiphy,
483 struct net_device *dev,
484 enum nl80211_iftype type, u32 *flags,
485 struct vif_params *params);
486
487 static int rndis_scan(struct wiphy *wiphy,
488 struct cfg80211_scan_request *request);
489
490 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
491
492 static int rndis_set_tx_power(struct wiphy *wiphy,
493 enum nl80211_tx_power_setting type,
494 int mbm);
495 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
496
497 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
498 struct cfg80211_connect_params *sme);
499
500 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
501 u16 reason_code);
502
503 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
504 struct cfg80211_ibss_params *params);
505
506 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
507
508 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
509 u8 key_index, bool pairwise, const u8 *mac_addr,
510 struct key_params *params);
511
512 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
513 u8 key_index, bool pairwise, const u8 *mac_addr);
514
515 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
516 u8 key_index, bool unicast, bool multicast);
517
518 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
519 u8 *mac, struct station_info *sinfo);
520
521 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
522 int idx, u8 *mac, struct station_info *sinfo);
523
524 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
525 struct cfg80211_pmksa *pmksa);
526
527 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
528 struct cfg80211_pmksa *pmksa);
529
530 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
531
532 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
533 bool enabled, int timeout);
534
535 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
536 struct net_device *dev,
537 s32 rssi_thold, u32 rssi_hyst);
538
539 static const struct cfg80211_ops rndis_config_ops = {
540 .change_virtual_intf = rndis_change_virtual_intf,
541 .scan = rndis_scan,
542 .set_wiphy_params = rndis_set_wiphy_params,
543 .set_tx_power = rndis_set_tx_power,
544 .get_tx_power = rndis_get_tx_power,
545 .connect = rndis_connect,
546 .disconnect = rndis_disconnect,
547 .join_ibss = rndis_join_ibss,
548 .leave_ibss = rndis_leave_ibss,
549 .add_key = rndis_add_key,
550 .del_key = rndis_del_key,
551 .set_default_key = rndis_set_default_key,
552 .get_station = rndis_get_station,
553 .dump_station = rndis_dump_station,
554 .set_pmksa = rndis_set_pmksa,
555 .del_pmksa = rndis_del_pmksa,
556 .flush_pmksa = rndis_flush_pmksa,
557 .set_power_mgmt = rndis_set_power_mgmt,
558 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
559 };
560
561 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
562
563
564 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
565 {
566 return (struct rndis_wlan_private *)dev->driver_priv;
567 }
568
569 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
570 {
571 switch (priv->param_power_output) {
572 default:
573 case 3:
574 return BCM4320_DEFAULT_TXPOWER_DBM_100;
575 case 2:
576 return BCM4320_DEFAULT_TXPOWER_DBM_75;
577 case 1:
578 return BCM4320_DEFAULT_TXPOWER_DBM_50;
579 case 0:
580 return BCM4320_DEFAULT_TXPOWER_DBM_25;
581 }
582 }
583
584 static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
585 {
586 int cipher = priv->encr_keys[idx].cipher;
587
588 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
589 cipher == WLAN_CIPHER_SUITE_TKIP);
590 }
591
592 static int rndis_cipher_to_alg(u32 cipher)
593 {
594 switch (cipher) {
595 default:
596 return RNDIS_WLAN_ALG_NONE;
597 case WLAN_CIPHER_SUITE_WEP40:
598 case WLAN_CIPHER_SUITE_WEP104:
599 return RNDIS_WLAN_ALG_WEP;
600 case WLAN_CIPHER_SUITE_TKIP:
601 return RNDIS_WLAN_ALG_TKIP;
602 case WLAN_CIPHER_SUITE_CCMP:
603 return RNDIS_WLAN_ALG_CCMP;
604 }
605 }
606
607 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
608 {
609 switch (akm_suite) {
610 default:
611 return RNDIS_WLAN_KEY_MGMT_NONE;
612 case WLAN_AKM_SUITE_8021X:
613 return RNDIS_WLAN_KEY_MGMT_802_1X;
614 case WLAN_AKM_SUITE_PSK:
615 return RNDIS_WLAN_KEY_MGMT_PSK;
616 }
617 }
618
619 #ifdef DEBUG
620 static const char *oid_to_string(u32 oid)
621 {
622 switch (oid) {
623 #define OID_STR(oid) case oid: return(#oid)
624 /* from rndis_host.h */
625 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
626 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
627 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
628 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
629
630 /* from rndis_wlan.c */
631 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
632 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
633
634 OID_STR(RNDIS_OID_GEN_XMIT_OK);
635 OID_STR(RNDIS_OID_GEN_RCV_OK);
636 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
637 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
638 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
639
640 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
641 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
642 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
643
644 OID_STR(RNDIS_OID_802_11_BSSID);
645 OID_STR(RNDIS_OID_802_11_SSID);
646 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
647 OID_STR(RNDIS_OID_802_11_ADD_WEP);
648 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
649 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
650 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
651 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
652 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
653 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
654 OID_STR(RNDIS_OID_802_11_ADD_KEY);
655 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
656 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
657 OID_STR(RNDIS_OID_802_11_CAPABILITY);
658 OID_STR(RNDIS_OID_802_11_PMKID);
659 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
660 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
661 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
662 OID_STR(RNDIS_OID_802_11_RSSI);
663 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
664 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
665 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
666 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
667 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
668 OID_STR(RNDIS_OID_802_11_POWER_MODE);
669 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
670 #undef OID_STR
671 }
672
673 return "?";
674 }
675 #else
676 static const char *oid_to_string(u32 oid)
677 {
678 return "?";
679 }
680 #endif
681
682 /* translate error code */
683 static int rndis_error_status(__le32 rndis_status)
684 {
685 int ret = -EINVAL;
686 switch (le32_to_cpu(rndis_status)) {
687 case RNDIS_STATUS_SUCCESS:
688 ret = 0;
689 break;
690 case RNDIS_STATUS_FAILURE:
691 case RNDIS_STATUS_INVALID_DATA:
692 ret = -EINVAL;
693 break;
694 case RNDIS_STATUS_NOT_SUPPORTED:
695 ret = -EOPNOTSUPP;
696 break;
697 case RNDIS_STATUS_ADAPTER_NOT_READY:
698 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
699 ret = -EBUSY;
700 break;
701 }
702 return ret;
703 }
704
705 static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
706 {
707 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
708 union {
709 void *buf;
710 struct rndis_msg_hdr *header;
711 struct rndis_query *get;
712 struct rndis_query_c *get_c;
713 } u;
714 int ret, buflen;
715 int resplen, respoffs, copylen;
716
717 buflen = *len + sizeof(*u.get);
718 if (buflen < CONTROL_BUFFER_SIZE)
719 buflen = CONTROL_BUFFER_SIZE;
720
721 if (buflen > COMMAND_BUFFER_SIZE) {
722 u.buf = kmalloc(buflen, GFP_KERNEL);
723 if (!u.buf)
724 return -ENOMEM;
725 } else {
726 u.buf = priv->command_buffer;
727 }
728
729 mutex_lock(&priv->command_lock);
730
731 memset(u.get, 0, sizeof *u.get);
732 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
733 u.get->msg_len = cpu_to_le32(sizeof *u.get);
734 u.get->oid = cpu_to_le32(oid);
735
736 priv->current_command_oid = oid;
737 ret = rndis_command(dev, u.header, buflen);
738 priv->current_command_oid = 0;
739 if (ret < 0)
740 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
741 __func__, oid_to_string(oid), ret,
742 le32_to_cpu(u.get_c->status));
743
744 if (ret == 0) {
745 resplen = le32_to_cpu(u.get_c->len);
746 respoffs = le32_to_cpu(u.get_c->offset) + 8;
747
748 if (respoffs > buflen) {
749 /* Device returned data offset outside buffer, error. */
750 netdev_dbg(dev->net, "%s(%s): received invalid "
751 "data offset: %d > %d\n", __func__,
752 oid_to_string(oid), respoffs, buflen);
753
754 ret = -EINVAL;
755 goto exit_unlock;
756 }
757
758 if ((resplen + respoffs) > buflen) {
759 /* Device would have returned more data if buffer would
760 * have been big enough. Copy just the bits that we got.
761 */
762 copylen = buflen - respoffs;
763 } else {
764 copylen = resplen;
765 }
766
767 if (copylen > *len)
768 copylen = *len;
769
770 memcpy(data, u.buf + respoffs, copylen);
771
772 *len = resplen;
773
774 ret = rndis_error_status(u.get_c->status);
775 if (ret < 0)
776 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
777 __func__, oid_to_string(oid),
778 le32_to_cpu(u.get_c->status), ret);
779 }
780
781 exit_unlock:
782 mutex_unlock(&priv->command_lock);
783
784 if (u.buf != priv->command_buffer)
785 kfree(u.buf);
786 return ret;
787 }
788
789 static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
790 int len)
791 {
792 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
793 union {
794 void *buf;
795 struct rndis_msg_hdr *header;
796 struct rndis_set *set;
797 struct rndis_set_c *set_c;
798 } u;
799 int ret, buflen;
800
801 buflen = len + sizeof(*u.set);
802 if (buflen < CONTROL_BUFFER_SIZE)
803 buflen = CONTROL_BUFFER_SIZE;
804
805 if (buflen > COMMAND_BUFFER_SIZE) {
806 u.buf = kmalloc(buflen, GFP_KERNEL);
807 if (!u.buf)
808 return -ENOMEM;
809 } else {
810 u.buf = priv->command_buffer;
811 }
812
813 mutex_lock(&priv->command_lock);
814
815 memset(u.set, 0, sizeof *u.set);
816 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
817 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
818 u.set->oid = cpu_to_le32(oid);
819 u.set->len = cpu_to_le32(len);
820 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
821 u.set->handle = cpu_to_le32(0);
822 memcpy(u.buf + sizeof(*u.set), data, len);
823
824 priv->current_command_oid = oid;
825 ret = rndis_command(dev, u.header, buflen);
826 priv->current_command_oid = 0;
827 if (ret < 0)
828 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
829 __func__, oid_to_string(oid), ret,
830 le32_to_cpu(u.set_c->status));
831
832 if (ret == 0) {
833 ret = rndis_error_status(u.set_c->status);
834
835 if (ret < 0)
836 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
837 __func__, oid_to_string(oid),
838 le32_to_cpu(u.set_c->status), ret);
839 }
840
841 mutex_unlock(&priv->command_lock);
842
843 if (u.buf != priv->command_buffer)
844 kfree(u.buf);
845 return ret;
846 }
847
848 static int rndis_reset(struct usbnet *usbdev)
849 {
850 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
851 struct rndis_reset *reset;
852 int ret;
853
854 mutex_lock(&priv->command_lock);
855
856 reset = (void *)priv->command_buffer;
857 memset(reset, 0, sizeof(*reset));
858 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
859 reset->msg_len = cpu_to_le32(sizeof(*reset));
860 priv->current_command_oid = 0;
861 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
862
863 mutex_unlock(&priv->command_lock);
864
865 if (ret < 0)
866 return ret;
867 return 0;
868 }
869
870 /*
871 * Specs say that we can only set config parameters only soon after device
872 * initialization.
873 * value_type: 0 = u32, 2 = unicode string
874 */
875 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
876 int value_type, void *value)
877 {
878 struct ndis_config_param *infobuf;
879 int value_len, info_len, param_len, ret, i;
880 __le16 *unibuf;
881 __le32 *dst_value;
882
883 if (value_type == 0)
884 value_len = sizeof(__le32);
885 else if (value_type == 2)
886 value_len = strlen(value) * sizeof(__le16);
887 else
888 return -EINVAL;
889
890 param_len = strlen(param) * sizeof(__le16);
891 info_len = sizeof(*infobuf) + param_len + value_len;
892
893 #ifdef DEBUG
894 info_len += 12;
895 #endif
896 infobuf = kmalloc(info_len, GFP_KERNEL);
897 if (!infobuf)
898 return -ENOMEM;
899
900 #ifdef DEBUG
901 info_len -= 12;
902 /* extra 12 bytes are for padding (debug output) */
903 memset(infobuf, 0xCC, info_len + 12);
904 #endif
905
906 if (value_type == 2)
907 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
908 param, (u8 *)value);
909 else
910 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
911 param, *(u32 *)value);
912
913 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
914 infobuf->name_length = cpu_to_le32(param_len);
915 infobuf->type = cpu_to_le32(value_type);
916 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
917 infobuf->value_length = cpu_to_le32(value_len);
918
919 /* simple string to unicode string conversion */
920 unibuf = (void *)infobuf + sizeof(*infobuf);
921 for (i = 0; i < param_len / sizeof(__le16); i++)
922 unibuf[i] = cpu_to_le16(param[i]);
923
924 if (value_type == 2) {
925 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
926 for (i = 0; i < value_len / sizeof(__le16); i++)
927 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
928 } else {
929 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
930 *dst_value = cpu_to_le32(*(u32 *)value);
931 }
932
933 #ifdef DEBUG
934 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
935 for (i = 0; i < info_len; i += 12) {
936 u32 *tmp = (u32 *)((u8 *)infobuf + i);
937 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
938 cpu_to_be32(tmp[0]),
939 cpu_to_be32(tmp[1]),
940 cpu_to_be32(tmp[2]));
941 }
942 #endif
943
944 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
945 infobuf, info_len);
946 if (ret != 0)
947 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
948 ret);
949
950 kfree(infobuf);
951 return ret;
952 }
953
954 static int rndis_set_config_parameter_str(struct usbnet *dev,
955 char *param, char *value)
956 {
957 return rndis_set_config_parameter(dev, param, 2, value);
958 }
959
960 /*
961 * data conversion functions
962 */
963 static int level_to_qual(int level)
964 {
965 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
966 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
967 }
968
969 /*
970 * common functions
971 */
972 static int set_infra_mode(struct usbnet *usbdev, int mode);
973 static void restore_keys(struct usbnet *usbdev);
974 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
975 bool *matched);
976
977 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
978 {
979 __le32 tmp;
980
981 /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
982 tmp = cpu_to_le32(1);
983 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
984 sizeof(tmp));
985 }
986
987 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
988 {
989 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
990 int ret;
991
992 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
993 ssid, sizeof(*ssid));
994 if (ret < 0) {
995 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
996 return ret;
997 }
998 if (ret == 0) {
999 priv->radio_on = true;
1000 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1001 }
1002
1003 return ret;
1004 }
1005
1006 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1007 {
1008 int ret;
1009
1010 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1011 bssid, ETH_ALEN);
1012 if (ret < 0) {
1013 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1014 bssid, ret);
1015 return ret;
1016 }
1017
1018 return ret;
1019 }
1020
1021 static int clear_bssid(struct usbnet *usbdev)
1022 {
1023 static const u8 broadcast_mac[ETH_ALEN] = {
1024 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1025 };
1026
1027 return set_bssid(usbdev, broadcast_mac);
1028 }
1029
1030 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1031 {
1032 int ret, len;
1033
1034 len = ETH_ALEN;
1035 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1036 bssid, &len);
1037
1038 if (ret != 0)
1039 memset(bssid, 0, ETH_ALEN);
1040
1041 return ret;
1042 }
1043
1044 static int get_association_info(struct usbnet *usbdev,
1045 struct ndis_80211_assoc_info *info, int len)
1046 {
1047 return rndis_query_oid(usbdev,
1048 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1049 info, &len);
1050 }
1051
1052 static bool is_associated(struct usbnet *usbdev)
1053 {
1054 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1055 u8 bssid[ETH_ALEN];
1056 int ret;
1057
1058 if (!priv->radio_on)
1059 return false;
1060
1061 ret = get_bssid(usbdev, bssid);
1062
1063 return (ret == 0 && !is_zero_ether_addr(bssid));
1064 }
1065
1066 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1067 {
1068 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1069 struct ndis_80211_ssid ssid;
1070 int i, ret = 0;
1071
1072 if (priv->radio_on) {
1073 ret = rndis_set_oid(usbdev,
1074 RNDIS_OID_802_11_DISASSOCIATE,
1075 NULL, 0);
1076 if (ret == 0) {
1077 priv->radio_on = false;
1078 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1079 __func__);
1080
1081 if (reset_ssid)
1082 msleep(100);
1083 }
1084 }
1085
1086 /* disassociate causes radio to be turned off; if reset_ssid
1087 * is given, set random ssid to enable radio */
1088 if (reset_ssid) {
1089 /* Set device to infrastructure mode so we don't get ad-hoc
1090 * 'media connect' indications with the random ssid.
1091 */
1092 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1093
1094 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1095 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1096 ssid.essid[0] = 0x1;
1097 ssid.essid[1] = 0xff;
1098 for (i = 2; i < sizeof(ssid.essid); i++)
1099 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1100 ret = set_essid(usbdev, &ssid);
1101 }
1102 return ret;
1103 }
1104
1105 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1106 enum nl80211_auth_type auth_type, int keymgmt)
1107 {
1108 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1109 __le32 tmp;
1110 int auth_mode, ret;
1111
1112 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1113 __func__, wpa_version, auth_type, keymgmt);
1114
1115 if (wpa_version & NL80211_WPA_VERSION_2) {
1116 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1117 auth_mode = NDIS_80211_AUTH_WPA2;
1118 else
1119 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1120 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1121 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1122 auth_mode = NDIS_80211_AUTH_WPA;
1123 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1124 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1125 else
1126 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1127 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1128 auth_mode = NDIS_80211_AUTH_SHARED;
1129 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1130 auth_mode = NDIS_80211_AUTH_OPEN;
1131 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1132 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1133 else
1134 return -ENOTSUPP;
1135
1136 tmp = cpu_to_le32(auth_mode);
1137 ret = rndis_set_oid(usbdev,
1138 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1139 &tmp, sizeof(tmp));
1140 if (ret != 0) {
1141 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1142 ret);
1143 return ret;
1144 }
1145
1146 priv->wpa_version = wpa_version;
1147
1148 return 0;
1149 }
1150
1151 static int set_priv_filter(struct usbnet *usbdev)
1152 {
1153 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1154 __le32 tmp;
1155
1156 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1157 __func__, priv->wpa_version);
1158
1159 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1160 priv->wpa_version & NL80211_WPA_VERSION_1)
1161 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1162 else
1163 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1164
1165 return rndis_set_oid(usbdev,
1166 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1167 sizeof(tmp));
1168 }
1169
1170 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1171 {
1172 __le32 tmp;
1173 int encr_mode, ret;
1174
1175 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1176 __func__, pairwise, groupwise);
1177
1178 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1179 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1180 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1181 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1182 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1183 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1184 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1185 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1186 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1187 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1188 else
1189 encr_mode = NDIS_80211_ENCR_DISABLED;
1190
1191 tmp = cpu_to_le32(encr_mode);
1192 ret = rndis_set_oid(usbdev,
1193 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1194 sizeof(tmp));
1195 if (ret != 0) {
1196 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1197 ret);
1198 return ret;
1199 }
1200
1201 return 0;
1202 }
1203
1204 static int set_infra_mode(struct usbnet *usbdev, int mode)
1205 {
1206 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1207 __le32 tmp;
1208 int ret;
1209
1210 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1211 __func__, priv->infra_mode);
1212
1213 tmp = cpu_to_le32(mode);
1214 ret = rndis_set_oid(usbdev,
1215 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1216 &tmp, sizeof(tmp));
1217 if (ret != 0) {
1218 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1219 ret);
1220 return ret;
1221 }
1222
1223 /* NDIS drivers clear keys when infrastructure mode is
1224 * changed. But Linux tools assume otherwise. So set the
1225 * keys */
1226 restore_keys(usbdev);
1227
1228 priv->infra_mode = mode;
1229 return 0;
1230 }
1231
1232 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1233 {
1234 __le32 tmp;
1235
1236 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1237
1238 if (rts_threshold < 0 || rts_threshold > 2347)
1239 rts_threshold = 2347;
1240
1241 tmp = cpu_to_le32(rts_threshold);
1242 return rndis_set_oid(usbdev,
1243 RNDIS_OID_802_11_RTS_THRESHOLD,
1244 &tmp, sizeof(tmp));
1245 }
1246
1247 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1248 {
1249 __le32 tmp;
1250
1251 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1252
1253 if (frag_threshold < 256 || frag_threshold > 2346)
1254 frag_threshold = 2346;
1255
1256 tmp = cpu_to_le32(frag_threshold);
1257 return rndis_set_oid(usbdev,
1258 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1259 &tmp, sizeof(tmp));
1260 }
1261
1262 static void set_default_iw_params(struct usbnet *usbdev)
1263 {
1264 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1265 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1266 RNDIS_WLAN_KEY_MGMT_NONE);
1267 set_priv_filter(usbdev);
1268 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1269 }
1270
1271 static int deauthenticate(struct usbnet *usbdev)
1272 {
1273 int ret;
1274
1275 ret = disassociate(usbdev, true);
1276 set_default_iw_params(usbdev);
1277 return ret;
1278 }
1279
1280 static int set_channel(struct usbnet *usbdev, int channel)
1281 {
1282 struct ndis_80211_conf config;
1283 unsigned int dsconfig;
1284 int len, ret;
1285
1286 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1287
1288 /* this OID is valid only when not associated */
1289 if (is_associated(usbdev))
1290 return 0;
1291
1292 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1293
1294 len = sizeof(config);
1295 ret = rndis_query_oid(usbdev,
1296 RNDIS_OID_802_11_CONFIGURATION,
1297 &config, &len);
1298 if (ret < 0) {
1299 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1300 __func__);
1301 return ret;
1302 }
1303
1304 config.ds_config = cpu_to_le32(dsconfig);
1305 ret = rndis_set_oid(usbdev,
1306 RNDIS_OID_802_11_CONFIGURATION,
1307 &config, sizeof(config));
1308
1309 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1310
1311 return ret;
1312 }
1313
1314 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1315 u32 *beacon_period)
1316 {
1317 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1318 struct ieee80211_channel *channel;
1319 struct ndis_80211_conf config;
1320 int len, ret;
1321
1322 /* Get channel and beacon interval */
1323 len = sizeof(config);
1324 ret = rndis_query_oid(usbdev,
1325 RNDIS_OID_802_11_CONFIGURATION,
1326 &config, &len);
1327 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1328 __func__, ret);
1329 if (ret < 0)
1330 return NULL;
1331
1332 channel = ieee80211_get_channel(priv->wdev.wiphy,
1333 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1334 if (!channel)
1335 return NULL;
1336
1337 if (beacon_period)
1338 *beacon_period = le32_to_cpu(config.beacon_period);
1339 return channel;
1340 }
1341
1342 /* index must be 0 - N, as per NDIS */
1343 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1344 u8 index)
1345 {
1346 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1347 struct ndis_80211_wep_key ndis_key;
1348 u32 cipher;
1349 int ret;
1350
1351 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1352 __func__, index, key_len);
1353
1354 if (index >= RNDIS_WLAN_NUM_KEYS)
1355 return -EINVAL;
1356
1357 if (key_len == 5)
1358 cipher = WLAN_CIPHER_SUITE_WEP40;
1359 else if (key_len == 13)
1360 cipher = WLAN_CIPHER_SUITE_WEP104;
1361 else
1362 return -EINVAL;
1363
1364 memset(&ndis_key, 0, sizeof(ndis_key));
1365
1366 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1367 ndis_key.length = cpu_to_le32(key_len);
1368 ndis_key.index = cpu_to_le32(index);
1369 memcpy(&ndis_key.material, key, key_len);
1370
1371 if (index == priv->encr_tx_key_index) {
1372 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1373 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1374 RNDIS_WLAN_ALG_NONE);
1375 if (ret)
1376 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1377 ret);
1378 }
1379
1380 ret = rndis_set_oid(usbdev,
1381 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1382 sizeof(ndis_key));
1383 if (ret != 0) {
1384 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1385 index + 1, ret);
1386 return ret;
1387 }
1388
1389 priv->encr_keys[index].len = key_len;
1390 priv->encr_keys[index].cipher = cipher;
1391 memcpy(&priv->encr_keys[index].material, key, key_len);
1392 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1393
1394 return 0;
1395 }
1396
1397 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1398 u8 index, const u8 *addr, const u8 *rx_seq,
1399 int seq_len, u32 cipher, __le32 flags)
1400 {
1401 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1402 struct ndis_80211_key ndis_key;
1403 bool is_addr_ok;
1404 int ret;
1405
1406 if (index >= RNDIS_WLAN_NUM_KEYS) {
1407 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1408 __func__, index);
1409 return -EINVAL;
1410 }
1411 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1412 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1413 __func__, key_len);
1414 return -EINVAL;
1415 }
1416 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1417 if (!rx_seq || seq_len <= 0) {
1418 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1419 __func__);
1420 return -EINVAL;
1421 }
1422 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1423 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1424 return -EINVAL;
1425 }
1426 }
1427
1428 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1429 !is_broadcast_ether_addr(addr);
1430 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1431 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1432 __func__, addr);
1433 return -EINVAL;
1434 }
1435
1436 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1437 __func__, index,
1438 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1439 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1440 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1441
1442 memset(&ndis_key, 0, sizeof(ndis_key));
1443
1444 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1445 sizeof(ndis_key.material) + key_len);
1446 ndis_key.length = cpu_to_le32(key_len);
1447 ndis_key.index = cpu_to_le32(index) | flags;
1448
1449 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1450 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1451 * different order than NDIS spec, so swap the order here. */
1452 memcpy(ndis_key.material, key, 16);
1453 memcpy(ndis_key.material + 16, key + 24, 8);
1454 memcpy(ndis_key.material + 24, key + 16, 8);
1455 } else
1456 memcpy(ndis_key.material, key, key_len);
1457
1458 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1459 memcpy(ndis_key.rsc, rx_seq, seq_len);
1460
1461 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1462 /* pairwise key */
1463 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1464 } else {
1465 /* group key */
1466 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1467 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1468 else
1469 get_bssid(usbdev, ndis_key.bssid);
1470 }
1471
1472 ret = rndis_set_oid(usbdev,
1473 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1474 le32_to_cpu(ndis_key.size));
1475 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1476 __func__, ret);
1477 if (ret != 0)
1478 return ret;
1479
1480 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1481 priv->encr_keys[index].len = key_len;
1482 priv->encr_keys[index].cipher = cipher;
1483 memcpy(&priv->encr_keys[index].material, key, key_len);
1484 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1485 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1486 else
1487 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1488
1489 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1490 priv->encr_tx_key_index = index;
1491
1492 return 0;
1493 }
1494
1495 static int restore_key(struct usbnet *usbdev, u8 key_idx)
1496 {
1497 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1498 struct rndis_wlan_encr_key key;
1499
1500 if (is_wpa_key(priv, key_idx))
1501 return 0;
1502
1503 key = priv->encr_keys[key_idx];
1504
1505 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1506
1507 if (key.len == 0)
1508 return 0;
1509
1510 return add_wep_key(usbdev, key.material, key.len, key_idx);
1511 }
1512
1513 static void restore_keys(struct usbnet *usbdev)
1514 {
1515 int i;
1516
1517 for (i = 0; i < 4; i++)
1518 restore_key(usbdev, i);
1519 }
1520
1521 static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1522 {
1523 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1524 }
1525
1526 /* remove_key is for both wep and wpa */
1527 static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1528 {
1529 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1530 struct ndis_80211_remove_key remove_key;
1531 __le32 keyindex;
1532 bool is_wpa;
1533 int ret;
1534
1535 if (index >= RNDIS_WLAN_NUM_KEYS)
1536 return -ENOENT;
1537
1538 if (priv->encr_keys[index].len == 0)
1539 return 0;
1540
1541 is_wpa = is_wpa_key(priv, index);
1542
1543 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1544 __func__, index, is_wpa ? "wpa" : "wep",
1545 priv->encr_keys[index].len);
1546
1547 clear_key(priv, index);
1548
1549 if (is_wpa) {
1550 remove_key.size = cpu_to_le32(sizeof(remove_key));
1551 remove_key.index = cpu_to_le32(index);
1552 if (bssid) {
1553 /* pairwise key */
1554 if (!is_broadcast_ether_addr(bssid))
1555 remove_key.index |=
1556 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1557 memcpy(remove_key.bssid, bssid,
1558 sizeof(remove_key.bssid));
1559 } else
1560 memset(remove_key.bssid, 0xff,
1561 sizeof(remove_key.bssid));
1562
1563 ret = rndis_set_oid(usbdev,
1564 RNDIS_OID_802_11_REMOVE_KEY,
1565 &remove_key, sizeof(remove_key));
1566 if (ret != 0)
1567 return ret;
1568 } else {
1569 keyindex = cpu_to_le32(index);
1570 ret = rndis_set_oid(usbdev,
1571 RNDIS_OID_802_11_REMOVE_WEP,
1572 &keyindex, sizeof(keyindex));
1573 if (ret != 0) {
1574 netdev_warn(usbdev->net,
1575 "removing encryption key %d failed (%08X)\n",
1576 index, ret);
1577 return ret;
1578 }
1579 }
1580
1581 /* if it is transmit key, disable encryption */
1582 if (index == priv->encr_tx_key_index)
1583 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1584
1585 return 0;
1586 }
1587
1588 static void set_multicast_list(struct usbnet *usbdev)
1589 {
1590 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1591 struct netdev_hw_addr *ha;
1592 __le32 filter, basefilter;
1593 int ret;
1594 char *mc_addrs = NULL;
1595 int mc_count;
1596
1597 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1598 RNDIS_PACKET_TYPE_BROADCAST);
1599
1600 if (usbdev->net->flags & IFF_PROMISC) {
1601 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1602 RNDIS_PACKET_TYPE_ALL_LOCAL);
1603 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1604 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1605 }
1606
1607 if (filter != basefilter)
1608 goto set_filter;
1609
1610 /*
1611 * mc_list should be accessed holding the lock, so copy addresses to
1612 * local buffer first.
1613 */
1614 netif_addr_lock_bh(usbdev->net);
1615 mc_count = netdev_mc_count(usbdev->net);
1616 if (mc_count > priv->multicast_size) {
1617 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1618 } else if (mc_count) {
1619 int i = 0;
1620
1621 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1622 if (!mc_addrs) {
1623 netdev_warn(usbdev->net,
1624 "couldn't alloc %d bytes of memory\n",
1625 mc_count * ETH_ALEN);
1626 netif_addr_unlock_bh(usbdev->net);
1627 return;
1628 }
1629
1630 netdev_for_each_mc_addr(ha, usbdev->net)
1631 memcpy(mc_addrs + i++ * ETH_ALEN,
1632 ha->addr, ETH_ALEN);
1633 }
1634 netif_addr_unlock_bh(usbdev->net);
1635
1636 if (filter != basefilter)
1637 goto set_filter;
1638
1639 if (mc_count) {
1640 ret = rndis_set_oid(usbdev,
1641 RNDIS_OID_802_3_MULTICAST_LIST,
1642 mc_addrs, mc_count * ETH_ALEN);
1643 kfree(mc_addrs);
1644 if (ret == 0)
1645 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1646 else
1647 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1648
1649 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1650 mc_count, priv->multicast_size, ret);
1651 }
1652
1653 set_filter:
1654 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1655 sizeof(filter));
1656 if (ret < 0) {
1657 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1658 le32_to_cpu(filter));
1659 }
1660
1661 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1662 le32_to_cpu(filter), ret);
1663 }
1664
1665 #ifdef DEBUG
1666 static void debug_print_pmkids(struct usbnet *usbdev,
1667 struct ndis_80211_pmkid *pmkids,
1668 const char *func_str)
1669 {
1670 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1671 int i, len, count, max_pmkids, entry_len;
1672
1673 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1674 len = le32_to_cpu(pmkids->length);
1675 count = le32_to_cpu(pmkids->bssid_info_count);
1676
1677 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1678
1679 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1680 "%d)\n", func_str, count, len, entry_len);
1681
1682 if (count > max_pmkids)
1683 count = max_pmkids;
1684
1685 for (i = 0; i < count; i++) {
1686 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1687
1688 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1689 "pmkid: %08X:%08X:%08X:%08X\n",
1690 func_str, pmkids->bssid_info[i].bssid,
1691 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1692 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1693 }
1694 }
1695 #else
1696 static void debug_print_pmkids(struct usbnet *usbdev,
1697 struct ndis_80211_pmkid *pmkids,
1698 const char *func_str)
1699 {
1700 return;
1701 }
1702 #endif
1703
1704 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1705 {
1706 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1707 struct ndis_80211_pmkid *pmkids;
1708 int len, ret, max_pmkids;
1709
1710 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1711 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1712
1713 pmkids = kzalloc(len, GFP_KERNEL);
1714 if (!pmkids)
1715 return ERR_PTR(-ENOMEM);
1716
1717 pmkids->length = cpu_to_le32(len);
1718 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1719
1720 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1721 pmkids, &len);
1722 if (ret < 0) {
1723 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1724 " -> %d\n", __func__, len, max_pmkids, ret);
1725
1726 kfree(pmkids);
1727 return ERR_PTR(ret);
1728 }
1729
1730 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1731 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1732
1733 debug_print_pmkids(usbdev, pmkids, __func__);
1734
1735 return pmkids;
1736 }
1737
1738 static int set_device_pmkids(struct usbnet *usbdev,
1739 struct ndis_80211_pmkid *pmkids)
1740 {
1741 int ret, len, num_pmkids;
1742
1743 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1744 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1745 pmkids->length = cpu_to_le32(len);
1746
1747 debug_print_pmkids(usbdev, pmkids, __func__);
1748
1749 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1750 le32_to_cpu(pmkids->length));
1751 if (ret < 0) {
1752 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1753 "\n", __func__, len, num_pmkids, ret);
1754 }
1755
1756 kfree(pmkids);
1757 return ret;
1758 }
1759
1760 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1761 struct ndis_80211_pmkid *pmkids,
1762 struct cfg80211_pmksa *pmksa,
1763 int max_pmkids)
1764 {
1765 int i, newlen, err;
1766 unsigned int count;
1767
1768 count = le32_to_cpu(pmkids->bssid_info_count);
1769
1770 if (count > max_pmkids)
1771 count = max_pmkids;
1772
1773 for (i = 0; i < count; i++)
1774 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1775 pmksa->bssid))
1776 break;
1777
1778 /* pmkid not found */
1779 if (i == count) {
1780 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1781 __func__, pmksa->bssid);
1782 err = -ENOENT;
1783 goto error;
1784 }
1785
1786 for (; i + 1 < count; i++)
1787 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1788
1789 count--;
1790 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1791
1792 pmkids->length = cpu_to_le32(newlen);
1793 pmkids->bssid_info_count = cpu_to_le32(count);
1794
1795 return pmkids;
1796 error:
1797 kfree(pmkids);
1798 return ERR_PTR(err);
1799 }
1800
1801 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1802 struct ndis_80211_pmkid *pmkids,
1803 struct cfg80211_pmksa *pmksa,
1804 int max_pmkids)
1805 {
1806 int i, err, newlen;
1807 unsigned int count;
1808
1809 count = le32_to_cpu(pmkids->bssid_info_count);
1810
1811 if (count > max_pmkids)
1812 count = max_pmkids;
1813
1814 /* update with new pmkid */
1815 for (i = 0; i < count; i++) {
1816 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1817 pmksa->bssid))
1818 continue;
1819
1820 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1821 WLAN_PMKID_LEN);
1822
1823 return pmkids;
1824 }
1825
1826 /* out of space, return error */
1827 if (i == max_pmkids) {
1828 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1829 err = -ENOSPC;
1830 goto error;
1831 }
1832
1833 /* add new pmkid */
1834 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1835
1836 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1837 if (!pmkids) {
1838 err = -ENOMEM;
1839 goto error;
1840 }
1841
1842 pmkids->length = cpu_to_le32(newlen);
1843 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1844
1845 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1846 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1847
1848 return pmkids;
1849 error:
1850 kfree(pmkids);
1851 return ERR_PTR(err);
1852 }
1853
1854 /*
1855 * cfg80211 ops
1856 */
1857 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1858 struct net_device *dev,
1859 enum nl80211_iftype type, u32 *flags,
1860 struct vif_params *params)
1861 {
1862 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1863 struct usbnet *usbdev = priv->usbdev;
1864 int mode;
1865
1866 switch (type) {
1867 case NL80211_IFTYPE_ADHOC:
1868 mode = NDIS_80211_INFRA_ADHOC;
1869 break;
1870 case NL80211_IFTYPE_STATION:
1871 mode = NDIS_80211_INFRA_INFRA;
1872 break;
1873 default:
1874 return -EINVAL;
1875 }
1876
1877 priv->wdev.iftype = type;
1878
1879 return set_infra_mode(usbdev, mode);
1880 }
1881
1882 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1883 {
1884 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1885 struct usbnet *usbdev = priv->usbdev;
1886 int err;
1887
1888 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1889 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1890 if (err < 0)
1891 return err;
1892 }
1893
1894 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1895 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1896 if (err < 0)
1897 return err;
1898 }
1899
1900 return 0;
1901 }
1902
1903 static int rndis_set_tx_power(struct wiphy *wiphy,
1904 enum nl80211_tx_power_setting type,
1905 int mbm)
1906 {
1907 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1908 struct usbnet *usbdev = priv->usbdev;
1909
1910 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1911 __func__, type, mbm);
1912
1913 if (mbm < 0 || (mbm % 100))
1914 return -ENOTSUPP;
1915
1916 /* Device doesn't support changing txpower after initialization, only
1917 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1918 * currently used.
1919 */
1920 if (type == NL80211_TX_POWER_AUTOMATIC ||
1921 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1922 if (!priv->radio_on)
1923 disassociate(usbdev, true); /* turn on radio */
1924
1925 return 0;
1926 }
1927
1928 return -ENOTSUPP;
1929 }
1930
1931 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1932 {
1933 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1934 struct usbnet *usbdev = priv->usbdev;
1935
1936 *dbm = get_bcm4320_power_dbm(priv);
1937
1938 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1939
1940 return 0;
1941 }
1942
1943 #define SCAN_DELAY_JIFFIES (6 * HZ)
1944 static int rndis_scan(struct wiphy *wiphy,
1945 struct cfg80211_scan_request *request)
1946 {
1947 struct net_device *dev = request->wdev->netdev;
1948 struct usbnet *usbdev = netdev_priv(dev);
1949 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1950 int ret;
1951 int delay = SCAN_DELAY_JIFFIES;
1952
1953 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1954
1955 /* Get current bssid list from device before new scan, as new scan
1956 * clears internal bssid list.
1957 */
1958 rndis_check_bssid_list(usbdev, NULL, NULL);
1959
1960 if (!request)
1961 return -EINVAL;
1962
1963 if (priv->scan_request && priv->scan_request != request)
1964 return -EBUSY;
1965
1966 priv->scan_request = request;
1967
1968 ret = rndis_start_bssid_list_scan(usbdev);
1969 if (ret == 0) {
1970 if (priv->device_type == RNDIS_BCM4320A)
1971 delay = HZ;
1972
1973 /* Wait before retrieving scan results from device */
1974 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1975 }
1976
1977 return ret;
1978 }
1979
1980 static bool rndis_bss_info_update(struct usbnet *usbdev,
1981 struct ndis_80211_bssid_ex *bssid)
1982 {
1983 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1984 struct ieee80211_channel *channel;
1985 struct cfg80211_bss *bss;
1986 s32 signal;
1987 u64 timestamp;
1988 u16 capability;
1989 u16 beacon_interval;
1990 struct ndis_80211_fixed_ies *fixed;
1991 int ie_len, bssid_len;
1992 u8 *ie;
1993
1994 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1995 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1996
1997 /* parse bssid structure */
1998 bssid_len = le32_to_cpu(bssid->length);
1999
2000 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2001 sizeof(struct ndis_80211_fixed_ies))
2002 return NULL;
2003
2004 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2005
2006 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2007 ie_len = min(bssid_len - (int)sizeof(*bssid),
2008 (int)le32_to_cpu(bssid->ie_length));
2009 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2010 if (ie_len < 0)
2011 return NULL;
2012
2013 /* extract data for cfg80211_inform_bss */
2014 channel = ieee80211_get_channel(priv->wdev.wiphy,
2015 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2016 if (!channel)
2017 return NULL;
2018
2019 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2020 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2021 capability = le16_to_cpu(fixed->capabilities);
2022 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2023
2024 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2025 timestamp, capability, beacon_interval, ie, ie_len, signal,
2026 GFP_KERNEL);
2027 cfg80211_put_bss(bss);
2028
2029 return (bss != NULL);
2030 }
2031
2032 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2033 struct ndis_80211_bssid_ex *bssid,
2034 int *bssid_len, void *buf, int len)
2035 {
2036 void *buf_end, *bssid_end;
2037
2038 buf_end = (char *)buf + len;
2039 bssid_end = (char *)bssid + *bssid_len;
2040
2041 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2042 *bssid_len = 0;
2043 return NULL;
2044 } else {
2045 bssid = (void *)((char *)bssid + *bssid_len);
2046 *bssid_len = le32_to_cpu(bssid->length);
2047 return bssid;
2048 }
2049 }
2050
2051 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2052 int bssid_len, void *buf, int len)
2053 {
2054 void *buf_end, *bssid_end;
2055
2056 if (!bssid || bssid_len <= 0 || bssid_len > len)
2057 return false;
2058
2059 buf_end = (char *)buf + len;
2060 bssid_end = (char *)bssid + bssid_len;
2061
2062 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2063 }
2064
2065 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2066 bool *matched)
2067 {
2068 void *buf = NULL;
2069 struct ndis_80211_bssid_list_ex *bssid_list;
2070 struct ndis_80211_bssid_ex *bssid;
2071 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2072
2073 netdev_dbg(usbdev->net, "%s()\n", __func__);
2074
2075 len = CONTROL_BUFFER_SIZE;
2076 resize_buf:
2077 buf = kzalloc(len, GFP_KERNEL);
2078 if (!buf) {
2079 ret = -ENOMEM;
2080 goto out;
2081 }
2082
2083 /* BSSID-list might have got bigger last time we checked, keep
2084 * resizing until it won't get any bigger.
2085 */
2086 new_len = len;
2087 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2088 buf, &new_len);
2089 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2090 goto out;
2091
2092 if (new_len > len) {
2093 len = new_len;
2094 kfree(buf);
2095 goto resize_buf;
2096 }
2097
2098 len = new_len;
2099
2100 bssid_list = buf;
2101 count = le32_to_cpu(bssid_list->num_items);
2102 real_count = 0;
2103 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2104
2105 bssid_len = 0;
2106 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2107
2108 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2109 * received 'num_items' and walking through full bssid buffer instead.
2110 */
2111 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2112 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2113 matched) {
2114 if (ether_addr_equal(bssid->mac, match_bssid))
2115 *matched = true;
2116 }
2117
2118 real_count++;
2119 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2120 }
2121
2122 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2123 " %d\n", __func__, count, real_count);
2124
2125 out:
2126 kfree(buf);
2127 return ret;
2128 }
2129
2130 static void rndis_get_scan_results(struct work_struct *work)
2131 {
2132 struct rndis_wlan_private *priv =
2133 container_of(work, struct rndis_wlan_private, scan_work.work);
2134 struct usbnet *usbdev = priv->usbdev;
2135 int ret;
2136
2137 netdev_dbg(usbdev->net, "get_scan_results\n");
2138
2139 if (!priv->scan_request)
2140 return;
2141
2142 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2143
2144 cfg80211_scan_done(priv->scan_request, ret < 0);
2145
2146 priv->scan_request = NULL;
2147 }
2148
2149 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2150 struct cfg80211_connect_params *sme)
2151 {
2152 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2153 struct usbnet *usbdev = priv->usbdev;
2154 struct ieee80211_channel *channel = sme->channel;
2155 struct ndis_80211_ssid ssid;
2156 int pairwise = RNDIS_WLAN_ALG_NONE;
2157 int groupwise = RNDIS_WLAN_ALG_NONE;
2158 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2159 int length, i, ret, chan = -1;
2160
2161 if (channel)
2162 chan = ieee80211_frequency_to_channel(channel->center_freq);
2163
2164 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2165 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2166 pairwise |=
2167 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2168
2169 if (sme->crypto.n_ciphers_pairwise > 0 &&
2170 pairwise == RNDIS_WLAN_ALG_NONE) {
2171 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2172 return -ENOTSUPP;
2173 }
2174
2175 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2176 keymgmt |=
2177 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2178
2179 if (sme->crypto.n_akm_suites > 0 &&
2180 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2181 netdev_err(usbdev->net, "Invalid keymgmt\n");
2182 return -ENOTSUPP;
2183 }
2184
2185 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2186 sme->ssid, sme->bssid, chan,
2187 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2188 groupwise, pairwise, keymgmt);
2189
2190 if (is_associated(usbdev))
2191 disassociate(usbdev, false);
2192
2193 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2194 if (ret < 0) {
2195 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2196 ret);
2197 goto err_turn_radio_on;
2198 }
2199
2200 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2201 keymgmt);
2202 if (ret < 0) {
2203 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2204 ret);
2205 goto err_turn_radio_on;
2206 }
2207
2208 set_priv_filter(usbdev);
2209
2210 ret = set_encr_mode(usbdev, pairwise, groupwise);
2211 if (ret < 0) {
2212 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2213 ret);
2214 goto err_turn_radio_on;
2215 }
2216
2217 if (channel) {
2218 ret = set_channel(usbdev, chan);
2219 if (ret < 0) {
2220 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2221 ret);
2222 goto err_turn_radio_on;
2223 }
2224 }
2225
2226 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2227 priv->encr_tx_key_index = sme->key_idx;
2228 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2229 if (ret < 0) {
2230 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2231 ret, sme->key_len, sme->key_idx);
2232 goto err_turn_radio_on;
2233 }
2234 }
2235
2236 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2237 !is_broadcast_ether_addr(sme->bssid)) {
2238 ret = set_bssid(usbdev, sme->bssid);
2239 if (ret < 0) {
2240 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2241 ret);
2242 goto err_turn_radio_on;
2243 }
2244 } else
2245 clear_bssid(usbdev);
2246
2247 length = sme->ssid_len;
2248 if (length > NDIS_802_11_LENGTH_SSID)
2249 length = NDIS_802_11_LENGTH_SSID;
2250
2251 memset(&ssid, 0, sizeof(ssid));
2252 ssid.length = cpu_to_le32(length);
2253 memcpy(ssid.essid, sme->ssid, length);
2254
2255 /* Pause and purge rx queue, so we don't pass packets before
2256 * 'media connect'-indication.
2257 */
2258 usbnet_pause_rx(usbdev);
2259 usbnet_purge_paused_rxq(usbdev);
2260
2261 ret = set_essid(usbdev, &ssid);
2262 if (ret < 0)
2263 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2264 return ret;
2265
2266 err_turn_radio_on:
2267 disassociate(usbdev, true);
2268
2269 return ret;
2270 }
2271
2272 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2273 u16 reason_code)
2274 {
2275 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2276 struct usbnet *usbdev = priv->usbdev;
2277
2278 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2279
2280 priv->connected = false;
2281 memset(priv->bssid, 0, ETH_ALEN);
2282
2283 return deauthenticate(usbdev);
2284 }
2285
2286 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2287 struct cfg80211_ibss_params *params)
2288 {
2289 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2290 struct usbnet *usbdev = priv->usbdev;
2291 struct ieee80211_channel *channel = params->channel;
2292 struct ndis_80211_ssid ssid;
2293 enum nl80211_auth_type auth_type;
2294 int ret, alg, length, chan = -1;
2295
2296 if (channel)
2297 chan = ieee80211_frequency_to_channel(channel->center_freq);
2298
2299 /* TODO: How to handle ad-hoc encryption?
2300 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2301 * pre-shared for encryption (open/shared/wpa), is key set before
2302 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2303 */
2304 if (params->privacy) {
2305 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2306 alg = RNDIS_WLAN_ALG_WEP;
2307 } else {
2308 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2309 alg = RNDIS_WLAN_ALG_NONE;
2310 }
2311
2312 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2313 params->ssid, params->bssid, chan, params->privacy);
2314
2315 if (is_associated(usbdev))
2316 disassociate(usbdev, false);
2317
2318 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2319 if (ret < 0) {
2320 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2321 ret);
2322 goto err_turn_radio_on;
2323 }
2324
2325 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2326 if (ret < 0) {
2327 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2328 ret);
2329 goto err_turn_radio_on;
2330 }
2331
2332 set_priv_filter(usbdev);
2333
2334 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2335 if (ret < 0) {
2336 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2337 ret);
2338 goto err_turn_radio_on;
2339 }
2340
2341 if (channel) {
2342 ret = set_channel(usbdev, chan);
2343 if (ret < 0) {
2344 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2345 ret);
2346 goto err_turn_radio_on;
2347 }
2348 }
2349
2350 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2351 !is_broadcast_ether_addr(params->bssid)) {
2352 ret = set_bssid(usbdev, params->bssid);
2353 if (ret < 0) {
2354 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2355 ret);
2356 goto err_turn_radio_on;
2357 }
2358 } else
2359 clear_bssid(usbdev);
2360
2361 length = params->ssid_len;
2362 if (length > NDIS_802_11_LENGTH_SSID)
2363 length = NDIS_802_11_LENGTH_SSID;
2364
2365 memset(&ssid, 0, sizeof(ssid));
2366 ssid.length = cpu_to_le32(length);
2367 memcpy(ssid.essid, params->ssid, length);
2368
2369 /* Don't need to pause rx queue for ad-hoc. */
2370 usbnet_purge_paused_rxq(usbdev);
2371 usbnet_resume_rx(usbdev);
2372
2373 ret = set_essid(usbdev, &ssid);
2374 if (ret < 0)
2375 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2376 ret);
2377 return ret;
2378
2379 err_turn_radio_on:
2380 disassociate(usbdev, true);
2381
2382 return ret;
2383 }
2384
2385 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2386 {
2387 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2388 struct usbnet *usbdev = priv->usbdev;
2389
2390 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2391
2392 priv->connected = false;
2393 memset(priv->bssid, 0, ETH_ALEN);
2394
2395 return deauthenticate(usbdev);
2396 }
2397
2398 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2399 u8 key_index, bool pairwise, const u8 *mac_addr,
2400 struct key_params *params)
2401 {
2402 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2403 struct usbnet *usbdev = priv->usbdev;
2404 __le32 flags;
2405
2406 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2407 __func__, key_index, mac_addr, params->cipher);
2408
2409 switch (params->cipher) {
2410 case WLAN_CIPHER_SUITE_WEP40:
2411 case WLAN_CIPHER_SUITE_WEP104:
2412 return add_wep_key(usbdev, params->key, params->key_len,
2413 key_index);
2414 case WLAN_CIPHER_SUITE_TKIP:
2415 case WLAN_CIPHER_SUITE_CCMP:
2416 flags = 0;
2417
2418 if (params->seq && params->seq_len > 0)
2419 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2420 if (mac_addr)
2421 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2422 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2423
2424 return add_wpa_key(usbdev, params->key, params->key_len,
2425 key_index, mac_addr, params->seq,
2426 params->seq_len, params->cipher, flags);
2427 default:
2428 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2429 __func__, params->cipher);
2430 return -ENOTSUPP;
2431 }
2432 }
2433
2434 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2435 u8 key_index, bool pairwise, const u8 *mac_addr)
2436 {
2437 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2438 struct usbnet *usbdev = priv->usbdev;
2439
2440 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2441
2442 return remove_key(usbdev, key_index, mac_addr);
2443 }
2444
2445 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2446 u8 key_index, bool unicast, bool multicast)
2447 {
2448 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2449 struct usbnet *usbdev = priv->usbdev;
2450 struct rndis_wlan_encr_key key;
2451
2452 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2453
2454 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2455 return -ENOENT;
2456
2457 priv->encr_tx_key_index = key_index;
2458
2459 if (is_wpa_key(priv, key_index))
2460 return 0;
2461
2462 key = priv->encr_keys[key_index];
2463
2464 return add_wep_key(usbdev, key.material, key.len, key_index);
2465 }
2466
2467 static void rndis_fill_station_info(struct usbnet *usbdev,
2468 struct station_info *sinfo)
2469 {
2470 __le32 linkspeed, rssi;
2471 int ret, len;
2472
2473 memset(sinfo, 0, sizeof(*sinfo));
2474
2475 len = sizeof(linkspeed);
2476 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2477 if (ret == 0) {
2478 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2479 sinfo->filled |= STATION_INFO_TX_BITRATE;
2480 }
2481
2482 len = sizeof(rssi);
2483 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2484 &rssi, &len);
2485 if (ret == 0) {
2486 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2487 sinfo->filled |= STATION_INFO_SIGNAL;
2488 }
2489 }
2490
2491 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2492 u8 *mac, struct station_info *sinfo)
2493 {
2494 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2495 struct usbnet *usbdev = priv->usbdev;
2496
2497 if (!ether_addr_equal(priv->bssid, mac))
2498 return -ENOENT;
2499
2500 rndis_fill_station_info(usbdev, sinfo);
2501
2502 return 0;
2503 }
2504
2505 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2506 int idx, u8 *mac, struct station_info *sinfo)
2507 {
2508 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2509 struct usbnet *usbdev = priv->usbdev;
2510
2511 if (idx != 0)
2512 return -ENOENT;
2513
2514 memcpy(mac, priv->bssid, ETH_ALEN);
2515
2516 rndis_fill_station_info(usbdev, sinfo);
2517
2518 return 0;
2519 }
2520
2521 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2522 struct cfg80211_pmksa *pmksa)
2523 {
2524 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2525 struct usbnet *usbdev = priv->usbdev;
2526 struct ndis_80211_pmkid *pmkids;
2527 u32 *tmp = (u32 *)pmksa->pmkid;
2528
2529 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2530 pmksa->bssid,
2531 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2532 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2533
2534 pmkids = get_device_pmkids(usbdev);
2535 if (IS_ERR(pmkids)) {
2536 /* couldn't read PMKID cache from device */
2537 return PTR_ERR(pmkids);
2538 }
2539
2540 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2541 if (IS_ERR(pmkids)) {
2542 /* not found, list full, etc */
2543 return PTR_ERR(pmkids);
2544 }
2545
2546 return set_device_pmkids(usbdev, pmkids);
2547 }
2548
2549 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2550 struct cfg80211_pmksa *pmksa)
2551 {
2552 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2553 struct usbnet *usbdev = priv->usbdev;
2554 struct ndis_80211_pmkid *pmkids;
2555 u32 *tmp = (u32 *)pmksa->pmkid;
2556
2557 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2558 pmksa->bssid,
2559 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2560 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2561
2562 pmkids = get_device_pmkids(usbdev);
2563 if (IS_ERR(pmkids)) {
2564 /* Couldn't read PMKID cache from device */
2565 return PTR_ERR(pmkids);
2566 }
2567
2568 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2569 if (IS_ERR(pmkids)) {
2570 /* not found, etc */
2571 return PTR_ERR(pmkids);
2572 }
2573
2574 return set_device_pmkids(usbdev, pmkids);
2575 }
2576
2577 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2578 {
2579 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2580 struct usbnet *usbdev = priv->usbdev;
2581 struct ndis_80211_pmkid pmkid;
2582
2583 netdev_dbg(usbdev->net, "%s()\n", __func__);
2584
2585 memset(&pmkid, 0, sizeof(pmkid));
2586
2587 pmkid.length = cpu_to_le32(sizeof(pmkid));
2588 pmkid.bssid_info_count = cpu_to_le32(0);
2589
2590 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2591 &pmkid, sizeof(pmkid));
2592 }
2593
2594 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2595 bool enabled, int timeout)
2596 {
2597 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2598 struct usbnet *usbdev = priv->usbdev;
2599 int power_mode;
2600 __le32 mode;
2601 int ret;
2602
2603 if (priv->device_type != RNDIS_BCM4320B)
2604 return -ENOTSUPP;
2605
2606 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2607 enabled ? "enabled" : "disabled",
2608 timeout);
2609
2610 if (enabled)
2611 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2612 else
2613 power_mode = NDIS_80211_POWER_MODE_CAM;
2614
2615 if (power_mode == priv->power_mode)
2616 return 0;
2617
2618 priv->power_mode = power_mode;
2619
2620 mode = cpu_to_le32(power_mode);
2621 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2622 &mode, sizeof(mode));
2623
2624 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2625 __func__, ret);
2626
2627 return ret;
2628 }
2629
2630 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2631 struct net_device *dev,
2632 s32 rssi_thold, u32 rssi_hyst)
2633 {
2634 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2635
2636 priv->cqm_rssi_thold = rssi_thold;
2637 priv->cqm_rssi_hyst = rssi_hyst;
2638 priv->last_cqm_event_rssi = 0;
2639
2640 return 0;
2641 }
2642
2643 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2644 struct ndis_80211_assoc_info *info)
2645 {
2646 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2647 struct ieee80211_channel *channel;
2648 struct ndis_80211_ssid ssid;
2649 struct cfg80211_bss *bss;
2650 s32 signal;
2651 u64 timestamp;
2652 u16 capability;
2653 u32 beacon_period = 0;
2654 __le32 rssi;
2655 u8 ie_buf[34];
2656 int len, ret, ie_len;
2657
2658 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2659 len = sizeof(rssi);
2660 rssi = 0;
2661 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2662 &rssi, &len);
2663 signal = level_to_qual(le32_to_cpu(rssi));
2664
2665 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2666 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2667 level_to_qual(le32_to_cpu(rssi)));
2668
2669 /* Get AP capabilities */
2670 if (info) {
2671 capability = le16_to_cpu(info->resp_ie.capa);
2672 } else {
2673 /* Set atleast ESS/IBSS capability */
2674 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2675 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2676 }
2677
2678 /* Get channel and beacon interval */
2679 channel = get_current_channel(usbdev, &beacon_period);
2680 if (!channel) {
2681 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2682 __func__);
2683 return;
2684 }
2685
2686 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2687 len = sizeof(ssid);
2688 memset(&ssid, 0, sizeof(ssid));
2689 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2690 &ssid, &len);
2691 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2692 "'%.32s'\n", __func__, ret,
2693 le32_to_cpu(ssid.length), ssid.essid);
2694
2695 if (le32_to_cpu(ssid.length) > 32)
2696 ssid.length = cpu_to_le32(32);
2697
2698 ie_buf[0] = WLAN_EID_SSID;
2699 ie_buf[1] = le32_to_cpu(ssid.length);
2700 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2701
2702 ie_len = le32_to_cpu(ssid.length) + 2;
2703
2704 /* no tsf */
2705 timestamp = 0;
2706
2707 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2708 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2709 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2710 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2711 ssid.essid, signal);
2712
2713 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2714 timestamp, capability, beacon_period, ie_buf, ie_len,
2715 signal, GFP_KERNEL);
2716 cfg80211_put_bss(bss);
2717 }
2718
2719 /*
2720 * workers, indication handlers, device poller
2721 */
2722 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2723 {
2724 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2725 struct ndis_80211_assoc_info *info = NULL;
2726 u8 bssid[ETH_ALEN];
2727 unsigned int resp_ie_len, req_ie_len;
2728 unsigned int offset;
2729 u8 *req_ie, *resp_ie;
2730 int ret;
2731 bool roamed = false;
2732 bool match_bss;
2733
2734 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2735 /* received media connect indication while connected, either
2736 * device reassociated with same AP or roamed to new. */
2737 roamed = true;
2738 }
2739
2740 req_ie_len = 0;
2741 resp_ie_len = 0;
2742 req_ie = NULL;
2743 resp_ie = NULL;
2744
2745 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2746 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2747 if (!info) {
2748 /* No memory? Try resume work later */
2749 set_bit(WORK_LINK_UP, &priv->work_pending);
2750 queue_work(priv->workqueue, &priv->work);
2751 return;
2752 }
2753
2754 /* Get association info IEs from device. */
2755 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2756 if (!ret) {
2757 req_ie_len = le32_to_cpu(info->req_ie_length);
2758 if (req_ie_len > CONTROL_BUFFER_SIZE)
2759 req_ie_len = CONTROL_BUFFER_SIZE;
2760 if (req_ie_len != 0) {
2761 offset = le32_to_cpu(info->offset_req_ies);
2762
2763 if (offset > CONTROL_BUFFER_SIZE)
2764 offset = CONTROL_BUFFER_SIZE;
2765
2766 req_ie = (u8 *)info + offset;
2767
2768 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2769 req_ie_len =
2770 CONTROL_BUFFER_SIZE - offset;
2771 }
2772
2773 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2774 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2775 resp_ie_len = CONTROL_BUFFER_SIZE;
2776 if (resp_ie_len != 0) {
2777 offset = le32_to_cpu(info->offset_resp_ies);
2778
2779 if (offset > CONTROL_BUFFER_SIZE)
2780 offset = CONTROL_BUFFER_SIZE;
2781
2782 resp_ie = (u8 *)info + offset;
2783
2784 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2785 resp_ie_len =
2786 CONTROL_BUFFER_SIZE - offset;
2787 }
2788 } else {
2789 /* Since rndis_wlan_craft_connected_bss() might use info
2790 * later and expects info to contain valid data if
2791 * non-null, free info and set NULL here.
2792 */
2793 kfree(info);
2794 info = NULL;
2795 }
2796 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2797 return;
2798
2799 ret = get_bssid(usbdev, bssid);
2800 if (ret < 0)
2801 memset(bssid, 0, sizeof(bssid));
2802
2803 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2804 bssid, roamed ? " roamed" : "");
2805
2806 /* Internal bss list in device should contain at least the currently
2807 * connected bss and we can get it to cfg80211 with
2808 * rndis_check_bssid_list().
2809 *
2810 * NDIS spec says: "If the device is associated, but the associated
2811 * BSSID is not in its BSSID scan list, then the driver must add an
2812 * entry for the BSSID at the end of the data that it returns in
2813 * response to query of RNDIS_OID_802_11_BSSID_LIST."
2814 *
2815 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2816 */
2817 match_bss = false;
2818 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2819
2820 if (!is_zero_ether_addr(bssid) && !match_bss) {
2821 /* Couldn't get bss from device, we need to manually craft bss
2822 * for cfg80211.
2823 */
2824 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2825 }
2826
2827 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2828 if (!roamed)
2829 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2830 req_ie_len, resp_ie,
2831 resp_ie_len, 0, GFP_KERNEL);
2832 else
2833 cfg80211_roamed(usbdev->net,
2834 get_current_channel(usbdev, NULL),
2835 bssid, req_ie, req_ie_len,
2836 resp_ie, resp_ie_len, GFP_KERNEL);
2837 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2838 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2839
2840 if (info != NULL)
2841 kfree(info);
2842
2843 priv->connected = true;
2844 memcpy(priv->bssid, bssid, ETH_ALEN);
2845
2846 usbnet_resume_rx(usbdev);
2847 netif_carrier_on(usbdev->net);
2848 }
2849
2850 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2851 {
2852 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2853
2854 if (priv->connected) {
2855 priv->connected = false;
2856 memset(priv->bssid, 0, ETH_ALEN);
2857
2858 deauthenticate(usbdev);
2859
2860 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2861 }
2862
2863 netif_carrier_off(usbdev->net);
2864 }
2865
2866 static void rndis_wlan_worker(struct work_struct *work)
2867 {
2868 struct rndis_wlan_private *priv =
2869 container_of(work, struct rndis_wlan_private, work);
2870 struct usbnet *usbdev = priv->usbdev;
2871
2872 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2873 rndis_wlan_do_link_up_work(usbdev);
2874
2875 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2876 rndis_wlan_do_link_down_work(usbdev);
2877
2878 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2879 set_multicast_list(usbdev);
2880 }
2881
2882 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2883 {
2884 struct usbnet *usbdev = netdev_priv(dev);
2885 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2886
2887 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2888 return;
2889
2890 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2891 queue_work(priv->workqueue, &priv->work);
2892 }
2893
2894 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2895 struct ndis_80211_status_indication *indication,
2896 int len)
2897 {
2898 u8 *buf;
2899 const char *type;
2900 int flags, buflen, key_id;
2901 bool pairwise_error, group_error;
2902 struct ndis_80211_auth_request *auth_req;
2903 enum nl80211_key_type key_type;
2904
2905 /* must have at least one array entry */
2906 if (len < offsetof(struct ndis_80211_status_indication, u) +
2907 sizeof(struct ndis_80211_auth_request)) {
2908 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2909 len);
2910 return;
2911 }
2912
2913 buf = (void *)&indication->u.auth_request[0];
2914 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2915
2916 while (buflen >= sizeof(*auth_req)) {
2917 auth_req = (void *)buf;
2918 type = "unknown";
2919 flags = le32_to_cpu(auth_req->flags);
2920 pairwise_error = false;
2921 group_error = false;
2922
2923 if (flags & 0x1)
2924 type = "reauth request";
2925 if (flags & 0x2)
2926 type = "key update request";
2927 if (flags & 0x6) {
2928 pairwise_error = true;
2929 type = "pairwise_error";
2930 }
2931 if (flags & 0xe) {
2932 group_error = true;
2933 type = "group_error";
2934 }
2935
2936 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2937 type, le32_to_cpu(auth_req->flags));
2938
2939 if (pairwise_error) {
2940 key_type = NL80211_KEYTYPE_PAIRWISE;
2941 key_id = -1;
2942
2943 cfg80211_michael_mic_failure(usbdev->net,
2944 auth_req->bssid,
2945 key_type, key_id, NULL,
2946 GFP_KERNEL);
2947 }
2948
2949 if (group_error) {
2950 key_type = NL80211_KEYTYPE_GROUP;
2951 key_id = -1;
2952
2953 cfg80211_michael_mic_failure(usbdev->net,
2954 auth_req->bssid,
2955 key_type, key_id, NULL,
2956 GFP_KERNEL);
2957 }
2958
2959 buflen -= le32_to_cpu(auth_req->length);
2960 buf += le32_to_cpu(auth_req->length);
2961 }
2962 }
2963
2964 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2965 struct ndis_80211_status_indication *indication,
2966 int len)
2967 {
2968 struct ndis_80211_pmkid_cand_list *cand_list;
2969 int list_len, expected_len, i;
2970
2971 if (len < offsetof(struct ndis_80211_status_indication, u) +
2972 sizeof(struct ndis_80211_pmkid_cand_list)) {
2973 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2974 len);
2975 return;
2976 }
2977
2978 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2979 sizeof(struct ndis_80211_pmkid_candidate);
2980 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2981 offsetof(struct ndis_80211_status_indication, u);
2982
2983 if (len < expected_len) {
2984 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2985 len, expected_len);
2986 return;
2987 }
2988
2989 cand_list = &indication->u.cand_list;
2990
2991 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2992 le32_to_cpu(cand_list->version),
2993 le32_to_cpu(cand_list->num_candidates));
2994
2995 if (le32_to_cpu(cand_list->version) != 1)
2996 return;
2997
2998 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2999 struct ndis_80211_pmkid_candidate *cand =
3000 &cand_list->candidate_list[i];
3001 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3002
3003 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3004 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3005
3006 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3007 preauth, GFP_ATOMIC);
3008 }
3009 }
3010
3011 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3012 struct rndis_indicate *msg, int buflen)
3013 {
3014 struct ndis_80211_status_indication *indication;
3015 unsigned int len, offset;
3016
3017 offset = offsetof(struct rndis_indicate, status) +
3018 le32_to_cpu(msg->offset);
3019 len = le32_to_cpu(msg->length);
3020
3021 if (len < 8) {
3022 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3023 len);
3024 return;
3025 }
3026
3027 if (len > buflen || offset > buflen || offset + len > buflen) {
3028 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3029 offset + len, buflen);
3030 return;
3031 }
3032
3033 indication = (void *)((u8 *)msg + offset);
3034
3035 switch (le32_to_cpu(indication->status_type)) {
3036 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3037 netdev_info(usbdev->net, "radio state indication: %i\n",
3038 le32_to_cpu(indication->u.radio_status));
3039 return;
3040
3041 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3042 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3043 le32_to_cpu(indication->u.media_stream_mode));
3044 return;
3045
3046 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3047 rndis_wlan_auth_indication(usbdev, indication, len);
3048 return;
3049
3050 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3051 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3052 return;
3053
3054 default:
3055 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3056 le32_to_cpu(indication->status_type));
3057 }
3058 }
3059
3060 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3061 {
3062 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3063 struct rndis_indicate *msg = ind;
3064
3065 switch (le32_to_cpu(msg->status)) {
3066 case RNDIS_STATUS_MEDIA_CONNECT:
3067 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3068 /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra
3069 * "media connect" indications which confuses driver
3070 * and userspace to think that device is
3071 * roaming/reassociating when it isn't.
3072 */
3073 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3074 return;
3075 }
3076
3077 usbnet_pause_rx(usbdev);
3078
3079 netdev_info(usbdev->net, "media connect\n");
3080
3081 /* queue work to avoid recursive calls into rndis_command */
3082 set_bit(WORK_LINK_UP, &priv->work_pending);
3083 queue_work(priv->workqueue, &priv->work);
3084 break;
3085
3086 case RNDIS_STATUS_MEDIA_DISCONNECT:
3087 netdev_info(usbdev->net, "media disconnect\n");
3088
3089 /* queue work to avoid recursive calls into rndis_command */
3090 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3091 queue_work(priv->workqueue, &priv->work);
3092 break;
3093
3094 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3095 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3096 break;
3097
3098 default:
3099 netdev_info(usbdev->net, "indication: 0x%08x\n",
3100 le32_to_cpu(msg->status));
3101 break;
3102 }
3103 }
3104
3105 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3106 {
3107 struct {
3108 __le32 num_items;
3109 __le32 items[8];
3110 } networks_supported;
3111 struct ndis_80211_capability *caps;
3112 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3113 int len, retval, i, n;
3114 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3115
3116 /* determine supported modes */
3117 len = sizeof(networks_supported);
3118 retval = rndis_query_oid(usbdev,
3119 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3120 &networks_supported, &len);
3121 if (retval >= 0) {
3122 n = le32_to_cpu(networks_supported.num_items);
3123 if (n > 8)
3124 n = 8;
3125 for (i = 0; i < n; i++) {
3126 switch (le32_to_cpu(networks_supported.items[i])) {
3127 case NDIS_80211_TYPE_FREQ_HOP:
3128 case NDIS_80211_TYPE_DIRECT_SEQ:
3129 priv->caps |= CAP_MODE_80211B;
3130 break;
3131 case NDIS_80211_TYPE_OFDM_A:
3132 priv->caps |= CAP_MODE_80211A;
3133 break;
3134 case NDIS_80211_TYPE_OFDM_G:
3135 priv->caps |= CAP_MODE_80211G;
3136 break;
3137 }
3138 }
3139 }
3140
3141 /* get device 802.11 capabilities, number of PMKIDs */
3142 caps = (struct ndis_80211_capability *)caps_buf;
3143 len = sizeof(caps_buf);
3144 retval = rndis_query_oid(usbdev,
3145 RNDIS_OID_802_11_CAPABILITY,
3146 caps, &len);
3147 if (retval >= 0) {
3148 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3149 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3150 le32_to_cpu(caps->length),
3151 le32_to_cpu(caps->version),
3152 le32_to_cpu(caps->num_pmkids),
3153 le32_to_cpu(caps->num_auth_encr_pair));
3154 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3155 } else
3156 wiphy->max_num_pmkids = 0;
3157
3158 return retval;
3159 }
3160
3161 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3162 {
3163 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3164 enum nl80211_cqm_rssi_threshold_event event;
3165 int thold, hyst, last_event;
3166
3167 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3168 return;
3169 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3170 return;
3171
3172 last_event = priv->last_cqm_event_rssi;
3173 thold = priv->cqm_rssi_thold;
3174 hyst = priv->cqm_rssi_hyst;
3175
3176 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3177 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3178 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3179 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3180 else
3181 return;
3182
3183 priv->last_cqm_event_rssi = rssi;
3184 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3185 }
3186
3187 #define DEVICE_POLLER_JIFFIES (HZ)
3188 static void rndis_device_poller(struct work_struct *work)
3189 {
3190 struct rndis_wlan_private *priv =
3191 container_of(work, struct rndis_wlan_private,
3192 dev_poller_work.work);
3193 struct usbnet *usbdev = priv->usbdev;
3194 __le32 rssi, tmp;
3195 int len, ret, j;
3196 int update_jiffies = DEVICE_POLLER_JIFFIES;
3197 void *buf;
3198
3199 /* Only check/do workaround when connected. Calling is_associated()
3200 * also polls device with rndis_command() and catches for media link
3201 * indications.
3202 */
3203 if (!is_associated(usbdev)) {
3204 /* Workaround bad scanning in BCM4320a devices with active
3205 * background scanning when not associated.
3206 */
3207 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3208 !priv->scan_request) {
3209 /* Get previous scan results */
3210 rndis_check_bssid_list(usbdev, NULL, NULL);
3211
3212 /* Initiate new scan */
3213 rndis_start_bssid_list_scan(usbdev);
3214 }
3215
3216 goto end;
3217 }
3218
3219 len = sizeof(rssi);
3220 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3221 &rssi, &len);
3222 if (ret == 0) {
3223 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3224 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3225 }
3226
3227 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3228 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3229
3230 /* Workaround transfer stalls on poor quality links.
3231 * TODO: find right way to fix these stalls (as stalls do not happen
3232 * with ndiswrapper/windows driver). */
3233 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3234 /* Decrease stats worker interval to catch stalls.
3235 * faster. Faster than 400-500ms causes packet loss,
3236 * Slower doesn't catch stalls fast enough.
3237 */
3238 j = msecs_to_jiffies(priv->param_workaround_interval);
3239 if (j > DEVICE_POLLER_JIFFIES)
3240 j = DEVICE_POLLER_JIFFIES;
3241 else if (j <= 0)
3242 j = 1;
3243 update_jiffies = j;
3244
3245 /* Send scan OID. Use of both OIDs is required to get device
3246 * working.
3247 */
3248 tmp = cpu_to_le32(1);
3249 rndis_set_oid(usbdev,
3250 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3251 &tmp, sizeof(tmp));
3252
3253 len = CONTROL_BUFFER_SIZE;
3254 buf = kmalloc(len, GFP_KERNEL);
3255 if (!buf)
3256 goto end;
3257
3258 rndis_query_oid(usbdev,
3259 RNDIS_OID_802_11_BSSID_LIST,
3260 buf, &len);
3261 kfree(buf);
3262 }
3263
3264 end:
3265 if (update_jiffies >= HZ)
3266 update_jiffies = round_jiffies_relative(update_jiffies);
3267 else {
3268 j = round_jiffies_relative(update_jiffies);
3269 if (abs(j - update_jiffies) <= 10)
3270 update_jiffies = j;
3271 }
3272
3273 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3274 update_jiffies);
3275 }
3276
3277 /*
3278 * driver/device initialization
3279 */
3280 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3281 {
3282 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3283
3284 priv->device_type = device_type;
3285
3286 priv->param_country[0] = modparam_country[0];
3287 priv->param_country[1] = modparam_country[1];
3288 priv->param_country[2] = 0;
3289 priv->param_frameburst = modparam_frameburst;
3290 priv->param_afterburner = modparam_afterburner;
3291 priv->param_power_save = modparam_power_save;
3292 priv->param_power_output = modparam_power_output;
3293 priv->param_roamtrigger = modparam_roamtrigger;
3294 priv->param_roamdelta = modparam_roamdelta;
3295
3296 priv->param_country[0] = toupper(priv->param_country[0]);
3297 priv->param_country[1] = toupper(priv->param_country[1]);
3298 /* doesn't support EU as country code, use FI instead */
3299 if (!strcmp(priv->param_country, "EU"))
3300 strcpy(priv->param_country, "FI");
3301
3302 if (priv->param_power_save < 0)
3303 priv->param_power_save = 0;
3304 else if (priv->param_power_save > 2)
3305 priv->param_power_save = 2;
3306
3307 if (priv->param_power_output < 0)
3308 priv->param_power_output = 0;
3309 else if (priv->param_power_output > 3)
3310 priv->param_power_output = 3;
3311
3312 if (priv->param_roamtrigger < -80)
3313 priv->param_roamtrigger = -80;
3314 else if (priv->param_roamtrigger > -60)
3315 priv->param_roamtrigger = -60;
3316
3317 if (priv->param_roamdelta < 0)
3318 priv->param_roamdelta = 0;
3319 else if (priv->param_roamdelta > 2)
3320 priv->param_roamdelta = 2;
3321
3322 if (modparam_workaround_interval < 0)
3323 priv->param_workaround_interval = 500;
3324 else
3325 priv->param_workaround_interval = modparam_workaround_interval;
3326 }
3327
3328 static int unknown_early_init(struct usbnet *usbdev)
3329 {
3330 /* copy module parameters for unknown so that iwconfig reports txpower
3331 * and workaround parameter is copied to private structure correctly.
3332 */
3333 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3334
3335 /* This is unknown device, so do not try set configuration parameters.
3336 */
3337
3338 return 0;
3339 }
3340
3341 static int bcm4320a_early_init(struct usbnet *usbdev)
3342 {
3343 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3344 * and workaround parameter is copied to private structure correctly.
3345 */
3346 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3347
3348 /* bcm4320a doesn't handle configuration parameters well. Try
3349 * set any and you get partially zeroed mac and broken device.
3350 */
3351
3352 return 0;
3353 }
3354
3355 static int bcm4320b_early_init(struct usbnet *usbdev)
3356 {
3357 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3358 char buf[8];
3359
3360 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3361
3362 /* Early initialization settings, setting these won't have effect
3363 * if called after generic_rndis_bind().
3364 */
3365
3366 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3367 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3368 priv->param_frameburst ? "1" : "0");
3369 rndis_set_config_parameter_str(usbdev, "Afterburner",
3370 priv->param_afterburner ? "1" : "0");
3371 sprintf(buf, "%d", priv->param_power_save);
3372 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3373 sprintf(buf, "%d", priv->param_power_output);
3374 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3375 sprintf(buf, "%d", priv->param_roamtrigger);
3376 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3377 sprintf(buf, "%d", priv->param_roamdelta);
3378 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3379
3380 return 0;
3381 }
3382
3383 /* same as rndis_netdev_ops but with local multicast handler */
3384 static const struct net_device_ops rndis_wlan_netdev_ops = {
3385 .ndo_open = usbnet_open,
3386 .ndo_stop = usbnet_stop,
3387 .ndo_start_xmit = usbnet_start_xmit,
3388 .ndo_tx_timeout = usbnet_tx_timeout,
3389 .ndo_set_mac_address = eth_mac_addr,
3390 .ndo_validate_addr = eth_validate_addr,
3391 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3392 };
3393
3394 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3395 {
3396 struct wiphy *wiphy;
3397 struct rndis_wlan_private *priv;
3398 int retval, len;
3399 __le32 tmp;
3400
3401 /* allocate wiphy and rndis private data
3402 * NOTE: We only support a single virtual interface, so wiphy
3403 * and wireless_dev are somewhat synonymous for this device.
3404 */
3405 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3406 if (!wiphy)
3407 return -ENOMEM;
3408
3409 priv = wiphy_priv(wiphy);
3410 usbdev->net->ieee80211_ptr = &priv->wdev;
3411 priv->wdev.wiphy = wiphy;
3412 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3413
3414 /* These have to be initialized before calling generic_rndis_bind().
3415 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3416 */
3417 usbdev->driver_priv = priv;
3418 priv->usbdev = usbdev;
3419
3420 mutex_init(&priv->command_lock);
3421
3422 /* because rndis_command() sleeps we need to use workqueue */
3423 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3424 INIT_WORK(&priv->work, rndis_wlan_worker);
3425 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3426 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3427
3428 /* try bind rndis_host */
3429 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3430 if (retval < 0)
3431 goto fail;
3432
3433 /* generic_rndis_bind set packet filter to multicast_all+
3434 * promisc mode which doesn't work well for our devices (device
3435 * picks up rssi to closest station instead of to access point).
3436 *
3437 * rndis_host wants to avoid all OID as much as possible
3438 * so do promisc/multicast handling in rndis_wlan.
3439 */
3440 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3441
3442 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3443 retval = rndis_set_oid(usbdev,
3444 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3445 &tmp, sizeof(tmp));
3446
3447 len = sizeof(tmp);
3448 retval = rndis_query_oid(usbdev,
3449 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3450 &tmp, &len);
3451 priv->multicast_size = le32_to_cpu(tmp);
3452 if (retval < 0 || priv->multicast_size < 0)
3453 priv->multicast_size = 0;
3454 if (priv->multicast_size > 0)
3455 usbdev->net->flags |= IFF_MULTICAST;
3456 else
3457 usbdev->net->flags &= ~IFF_MULTICAST;
3458
3459 /* fill-out wiphy structure and register w/ cfg80211 */
3460 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3461 wiphy->privid = rndis_wiphy_privid;
3462 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3463 | BIT(NL80211_IFTYPE_ADHOC);
3464 wiphy->max_scan_ssids = 1;
3465
3466 /* TODO: fill-out band/encr information based on priv->caps */
3467 rndis_wlan_get_caps(usbdev, wiphy);
3468
3469 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3470 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3471 priv->band.channels = priv->channels;
3472 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3473 priv->band.bitrates = priv->rates;
3474 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3475 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3476 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3477
3478 memcpy(priv->cipher_suites, rndis_cipher_suites,
3479 sizeof(rndis_cipher_suites));
3480 wiphy->cipher_suites = priv->cipher_suites;
3481 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3482
3483 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3484
3485 if (wiphy_register(wiphy)) {
3486 retval = -ENODEV;
3487 goto fail;
3488 }
3489
3490 set_default_iw_params(usbdev);
3491
3492 priv->power_mode = -1;
3493
3494 /* set default rts/frag */
3495 rndis_set_wiphy_params(wiphy,
3496 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3497
3498 /* turn radio off on init */
3499 priv->radio_on = false;
3500 disassociate(usbdev, false);
3501 netif_carrier_off(usbdev->net);
3502
3503 return 0;
3504
3505 fail:
3506 cancel_delayed_work_sync(&priv->dev_poller_work);
3507 cancel_delayed_work_sync(&priv->scan_work);
3508 cancel_work_sync(&priv->work);
3509 flush_workqueue(priv->workqueue);
3510 destroy_workqueue(priv->workqueue);
3511
3512 wiphy_free(wiphy);
3513 return retval;
3514 }
3515
3516 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3517 {
3518 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3519
3520 /* turn radio off */
3521 disassociate(usbdev, false);
3522
3523 cancel_delayed_work_sync(&priv->dev_poller_work);
3524 cancel_delayed_work_sync(&priv->scan_work);
3525 cancel_work_sync(&priv->work);
3526 flush_workqueue(priv->workqueue);
3527 destroy_workqueue(priv->workqueue);
3528
3529 rndis_unbind(usbdev, intf);
3530
3531 wiphy_unregister(priv->wdev.wiphy);
3532 wiphy_free(priv->wdev.wiphy);
3533 }
3534
3535 static int rndis_wlan_reset(struct usbnet *usbdev)
3536 {
3537 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3538 int retval;
3539
3540 netdev_dbg(usbdev->net, "%s()\n", __func__);
3541
3542 retval = rndis_reset(usbdev);
3543 if (retval)
3544 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3545
3546 /* rndis_reset cleared multicast list, so restore here.
3547 (set_multicast_list() also turns on current packet filter) */
3548 set_multicast_list(usbdev);
3549
3550 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3551 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3552
3553 return deauthenticate(usbdev);
3554 }
3555
3556 static int rndis_wlan_stop(struct usbnet *usbdev)
3557 {
3558 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3559 int retval;
3560 __le32 filter;
3561
3562 netdev_dbg(usbdev->net, "%s()\n", __func__);
3563
3564 retval = disassociate(usbdev, false);
3565
3566 priv->work_pending = 0;
3567 cancel_delayed_work_sync(&priv->dev_poller_work);
3568 cancel_delayed_work_sync(&priv->scan_work);
3569 cancel_work_sync(&priv->work);
3570 flush_workqueue(priv->workqueue);
3571
3572 if (priv->scan_request) {
3573 cfg80211_scan_done(priv->scan_request, true);
3574 priv->scan_request = NULL;
3575 }
3576
3577 /* Set current packet filter zero to block receiving data packets from
3578 device. */
3579 filter = 0;
3580 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3581 sizeof(filter));
3582
3583 return retval;
3584 }
3585
3586 static const struct driver_info bcm4320b_info = {
3587 .description = "Wireless RNDIS device, BCM4320b based",
3588 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3589 FLAG_AVOID_UNLINK_URBS,
3590 .bind = rndis_wlan_bind,
3591 .unbind = rndis_wlan_unbind,
3592 .status = rndis_status,
3593 .rx_fixup = rndis_rx_fixup,
3594 .tx_fixup = rndis_tx_fixup,
3595 .reset = rndis_wlan_reset,
3596 .stop = rndis_wlan_stop,
3597 .early_init = bcm4320b_early_init,
3598 .indication = rndis_wlan_indication,
3599 };
3600
3601 static const struct driver_info bcm4320a_info = {
3602 .description = "Wireless RNDIS device, BCM4320a based",
3603 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3604 FLAG_AVOID_UNLINK_URBS,
3605 .bind = rndis_wlan_bind,
3606 .unbind = rndis_wlan_unbind,
3607 .status = rndis_status,
3608 .rx_fixup = rndis_rx_fixup,
3609 .tx_fixup = rndis_tx_fixup,
3610 .reset = rndis_wlan_reset,
3611 .stop = rndis_wlan_stop,
3612 .early_init = bcm4320a_early_init,
3613 .indication = rndis_wlan_indication,
3614 };
3615
3616 static const struct driver_info rndis_wlan_info = {
3617 .description = "Wireless RNDIS device",
3618 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3619 FLAG_AVOID_UNLINK_URBS,
3620 .bind = rndis_wlan_bind,
3621 .unbind = rndis_wlan_unbind,
3622 .status = rndis_status,
3623 .rx_fixup = rndis_rx_fixup,
3624 .tx_fixup = rndis_tx_fixup,
3625 .reset = rndis_wlan_reset,
3626 .stop = rndis_wlan_stop,
3627 .early_init = unknown_early_init,
3628 .indication = rndis_wlan_indication,
3629 };
3630
3631 /*-------------------------------------------------------------------------*/
3632
3633 static const struct usb_device_id products [] = {
3634 #define RNDIS_MASTER_INTERFACE \
3635 .bInterfaceClass = USB_CLASS_COMM, \
3636 .bInterfaceSubClass = 2 /* ACM */, \
3637 .bInterfaceProtocol = 0x0ff
3638
3639 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3640 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3641 */
3642 {
3643 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3644 | USB_DEVICE_ID_MATCH_DEVICE,
3645 .idVendor = 0x0411,
3646 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3647 RNDIS_MASTER_INTERFACE,
3648 .driver_info = (unsigned long) &bcm4320b_info,
3649 }, {
3650 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3651 | USB_DEVICE_ID_MATCH_DEVICE,
3652 .idVendor = 0x0baf,
3653 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3654 RNDIS_MASTER_INTERFACE,
3655 .driver_info = (unsigned long) &bcm4320b_info,
3656 }, {
3657 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3658 | USB_DEVICE_ID_MATCH_DEVICE,
3659 .idVendor = 0x050d,
3660 .idProduct = 0x011b, /* Belkin F5D7051 */
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 = 0x1799, /* Belkin has two vendor ids */
3667 .idProduct = 0x011b, /* Belkin F5D7051 */
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 = 0x13b1,
3674 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
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 = 0x13b1,
3681 .idProduct = 0x0026, /* Linksys WUSB54GSC */
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 = 0x0b05,
3688 .idProduct = 0x1717, /* Asus WL169gE */
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 = 0x0a5c,
3695 .idProduct = 0xd11b, /* Eminent EM4045 */
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 = 0x1690,
3702 .idProduct = 0x0715, /* BT Voyager 1055 */
3703 RNDIS_MASTER_INTERFACE,
3704 .driver_info = (unsigned long) &bcm4320b_info,
3705 },
3706 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3707 * parameters available, hardware probably contain older firmware version with
3708 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3709 */
3710 {
3711 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3712 | USB_DEVICE_ID_MATCH_DEVICE,
3713 .idVendor = 0x13b1,
3714 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3715 RNDIS_MASTER_INTERFACE,
3716 .driver_info = (unsigned long) &bcm4320a_info,
3717 }, {
3718 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3719 | USB_DEVICE_ID_MATCH_DEVICE,
3720 .idVendor = 0x0baf,
3721 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3722 RNDIS_MASTER_INTERFACE,
3723 .driver_info = (unsigned long) &bcm4320a_info,
3724 }, {
3725 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3726 | USB_DEVICE_ID_MATCH_DEVICE,
3727 .idVendor = 0x0411,
3728 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3729 RNDIS_MASTER_INTERFACE,
3730 .driver_info = (unsigned long) &bcm4320a_info,
3731 },
3732 /* Generic Wireless RNDIS devices that we don't have exact
3733 * idVendor/idProduct/chip yet.
3734 */
3735 {
3736 /* RNDIS is MSFT's un-official variant of CDC ACM */
3737 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3738 .driver_info = (unsigned long) &rndis_wlan_info,
3739 }, {
3740 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3741 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3742 .driver_info = (unsigned long) &rndis_wlan_info,
3743 },
3744 { }, // END
3745 };
3746 MODULE_DEVICE_TABLE(usb, products);
3747
3748 static struct usb_driver rndis_wlan_driver = {
3749 .name = "rndis_wlan",
3750 .id_table = products,
3751 .probe = usbnet_probe,
3752 .disconnect = usbnet_disconnect,
3753 .suspend = usbnet_suspend,
3754 .resume = usbnet_resume,
3755 .disable_hub_initiated_lpm = 1,
3756 };
3757
3758 module_usb_driver(rndis_wlan_driver);
3759
3760 MODULE_AUTHOR("Bjorge Dijkstra");
3761 MODULE_AUTHOR("Jussi Kivilinna");
3762 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3763 MODULE_LICENSE("GPL");
3764
Linux kernel - Deliverables
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