projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
nl80211: add documentation for channel type
[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 struct wireless_dev *wdev,
494 enum nl80211_tx_power_setting type,
495 int mbm);
496 static int rndis_get_tx_power(struct wiphy *wiphy,
497 struct wireless_dev *wdev,
498 int *dbm);
499
500 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
501 struct cfg80211_connect_params *sme);
502
503 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
504 u16 reason_code);
505
506 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
507 struct cfg80211_ibss_params *params);
508
509 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
510
511 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
512 u8 key_index, bool pairwise, const u8 *mac_addr,
513 struct key_params *params);
514
515 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
516 u8 key_index, bool pairwise, const u8 *mac_addr);
517
518 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
519 u8 key_index, bool unicast, bool multicast);
520
521 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
522 u8 *mac, struct station_info *sinfo);
523
524 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
525 int idx, u8 *mac, struct station_info *sinfo);
526
527 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
528 struct cfg80211_pmksa *pmksa);
529
530 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
531 struct cfg80211_pmksa *pmksa);
532
533 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
534
535 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
536 bool enabled, int timeout);
537
538 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
539 struct net_device *dev,
540 s32 rssi_thold, u32 rssi_hyst);
541
542 static const struct cfg80211_ops rndis_config_ops = {
543 .change_virtual_intf = rndis_change_virtual_intf,
544 .scan = rndis_scan,
545 .set_wiphy_params = rndis_set_wiphy_params,
546 .set_tx_power = rndis_set_tx_power,
547 .get_tx_power = rndis_get_tx_power,
548 .connect = rndis_connect,
549 .disconnect = rndis_disconnect,
550 .join_ibss = rndis_join_ibss,
551 .leave_ibss = rndis_leave_ibss,
552 .add_key = rndis_add_key,
553 .del_key = rndis_del_key,
554 .set_default_key = rndis_set_default_key,
555 .get_station = rndis_get_station,
556 .dump_station = rndis_dump_station,
557 .set_pmksa = rndis_set_pmksa,
558 .del_pmksa = rndis_del_pmksa,
559 .flush_pmksa = rndis_flush_pmksa,
560 .set_power_mgmt = rndis_set_power_mgmt,
561 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
562 };
563
564 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
565
566
567 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
568 {
569 return (struct rndis_wlan_private *)dev->driver_priv;
570 }
571
572 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
573 {
574 switch (priv->param_power_output) {
575 default:
576 case 3:
577 return BCM4320_DEFAULT_TXPOWER_DBM_100;
578 case 2:
579 return BCM4320_DEFAULT_TXPOWER_DBM_75;
580 case 1:
581 return BCM4320_DEFAULT_TXPOWER_DBM_50;
582 case 0:
583 return BCM4320_DEFAULT_TXPOWER_DBM_25;
584 }
585 }
586
587 static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
588 {
589 int cipher = priv->encr_keys[idx].cipher;
590
591 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
592 cipher == WLAN_CIPHER_SUITE_TKIP);
593 }
594
595 static int rndis_cipher_to_alg(u32 cipher)
596 {
597 switch (cipher) {
598 default:
599 return RNDIS_WLAN_ALG_NONE;
600 case WLAN_CIPHER_SUITE_WEP40:
601 case WLAN_CIPHER_SUITE_WEP104:
602 return RNDIS_WLAN_ALG_WEP;
603 case WLAN_CIPHER_SUITE_TKIP:
604 return RNDIS_WLAN_ALG_TKIP;
605 case WLAN_CIPHER_SUITE_CCMP:
606 return RNDIS_WLAN_ALG_CCMP;
607 }
608 }
609
610 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
611 {
612 switch (akm_suite) {
613 default:
614 return RNDIS_WLAN_KEY_MGMT_NONE;
615 case WLAN_AKM_SUITE_8021X:
616 return RNDIS_WLAN_KEY_MGMT_802_1X;
617 case WLAN_AKM_SUITE_PSK:
618 return RNDIS_WLAN_KEY_MGMT_PSK;
619 }
620 }
621
622 #ifdef DEBUG
623 static const char *oid_to_string(u32 oid)
624 {
625 switch (oid) {
626 #define OID_STR(oid) case oid: return(#oid)
627 /* from rndis_host.h */
628 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
629 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
630 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
631 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
632
633 /* from rndis_wlan.c */
634 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
635 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
636
637 OID_STR(RNDIS_OID_GEN_XMIT_OK);
638 OID_STR(RNDIS_OID_GEN_RCV_OK);
639 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
640 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
641 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
642
643 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
644 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
645 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
646
647 OID_STR(RNDIS_OID_802_11_BSSID);
648 OID_STR(RNDIS_OID_802_11_SSID);
649 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
650 OID_STR(RNDIS_OID_802_11_ADD_WEP);
651 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
652 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
653 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
654 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
655 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
656 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
657 OID_STR(RNDIS_OID_802_11_ADD_KEY);
658 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
659 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
660 OID_STR(RNDIS_OID_802_11_CAPABILITY);
661 OID_STR(RNDIS_OID_802_11_PMKID);
662 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
663 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
664 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
665 OID_STR(RNDIS_OID_802_11_RSSI);
666 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
667 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
668 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
669 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
670 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
671 OID_STR(RNDIS_OID_802_11_POWER_MODE);
672 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
673 #undef OID_STR
674 }
675
676 return "?";
677 }
678 #else
679 static const char *oid_to_string(u32 oid)
680 {
681 return "?";
682 }
683 #endif
684
685 /* translate error code */
686 static int rndis_error_status(__le32 rndis_status)
687 {
688 int ret = -EINVAL;
689 switch (le32_to_cpu(rndis_status)) {
690 case RNDIS_STATUS_SUCCESS:
691 ret = 0;
692 break;
693 case RNDIS_STATUS_FAILURE:
694 case RNDIS_STATUS_INVALID_DATA:
695 ret = -EINVAL;
696 break;
697 case RNDIS_STATUS_NOT_SUPPORTED:
698 ret = -EOPNOTSUPP;
699 break;
700 case RNDIS_STATUS_ADAPTER_NOT_READY:
701 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
702 ret = -EBUSY;
703 break;
704 }
705 return ret;
706 }
707
708 static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
709 {
710 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
711 union {
712 void *buf;
713 struct rndis_msg_hdr *header;
714 struct rndis_query *get;
715 struct rndis_query_c *get_c;
716 } u;
717 int ret, buflen;
718 int resplen, respoffs, copylen;
719
720 buflen = *len + sizeof(*u.get);
721 if (buflen < CONTROL_BUFFER_SIZE)
722 buflen = CONTROL_BUFFER_SIZE;
723
724 if (buflen > COMMAND_BUFFER_SIZE) {
725 u.buf = kmalloc(buflen, GFP_KERNEL);
726 if (!u.buf)
727 return -ENOMEM;
728 } else {
729 u.buf = priv->command_buffer;
730 }
731
732 mutex_lock(&priv->command_lock);
733
734 memset(u.get, 0, sizeof *u.get);
735 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
736 u.get->msg_len = cpu_to_le32(sizeof *u.get);
737 u.get->oid = cpu_to_le32(oid);
738
739 priv->current_command_oid = oid;
740 ret = rndis_command(dev, u.header, buflen);
741 priv->current_command_oid = 0;
742 if (ret < 0)
743 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
744 __func__, oid_to_string(oid), ret,
745 le32_to_cpu(u.get_c->status));
746
747 if (ret == 0) {
748 resplen = le32_to_cpu(u.get_c->len);
749 respoffs = le32_to_cpu(u.get_c->offset) + 8;
750
751 if (respoffs > buflen) {
752 /* Device returned data offset outside buffer, error. */
753 netdev_dbg(dev->net, "%s(%s): received invalid "
754 "data offset: %d > %d\n", __func__,
755 oid_to_string(oid), respoffs, buflen);
756
757 ret = -EINVAL;
758 goto exit_unlock;
759 }
760
761 if ((resplen + respoffs) > buflen) {
762 /* Device would have returned more data if buffer would
763 * have been big enough. Copy just the bits that we got.
764 */
765 copylen = buflen - respoffs;
766 } else {
767 copylen = resplen;
768 }
769
770 if (copylen > *len)
771 copylen = *len;
772
773 memcpy(data, u.buf + respoffs, copylen);
774
775 *len = resplen;
776
777 ret = rndis_error_status(u.get_c->status);
778 if (ret < 0)
779 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
780 __func__, oid_to_string(oid),
781 le32_to_cpu(u.get_c->status), ret);
782 }
783
784 exit_unlock:
785 mutex_unlock(&priv->command_lock);
786
787 if (u.buf != priv->command_buffer)
788 kfree(u.buf);
789 return ret;
790 }
791
792 static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
793 int len)
794 {
795 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
796 union {
797 void *buf;
798 struct rndis_msg_hdr *header;
799 struct rndis_set *set;
800 struct rndis_set_c *set_c;
801 } u;
802 int ret, buflen;
803
804 buflen = len + sizeof(*u.set);
805 if (buflen < CONTROL_BUFFER_SIZE)
806 buflen = CONTROL_BUFFER_SIZE;
807
808 if (buflen > COMMAND_BUFFER_SIZE) {
809 u.buf = kmalloc(buflen, GFP_KERNEL);
810 if (!u.buf)
811 return -ENOMEM;
812 } else {
813 u.buf = priv->command_buffer;
814 }
815
816 mutex_lock(&priv->command_lock);
817
818 memset(u.set, 0, sizeof *u.set);
819 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
820 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
821 u.set->oid = cpu_to_le32(oid);
822 u.set->len = cpu_to_le32(len);
823 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
824 u.set->handle = cpu_to_le32(0);
825 memcpy(u.buf + sizeof(*u.set), data, len);
826
827 priv->current_command_oid = oid;
828 ret = rndis_command(dev, u.header, buflen);
829 priv->current_command_oid = 0;
830 if (ret < 0)
831 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
832 __func__, oid_to_string(oid), ret,
833 le32_to_cpu(u.set_c->status));
834
835 if (ret == 0) {
836 ret = rndis_error_status(u.set_c->status);
837
838 if (ret < 0)
839 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
840 __func__, oid_to_string(oid),
841 le32_to_cpu(u.set_c->status), ret);
842 }
843
844 mutex_unlock(&priv->command_lock);
845
846 if (u.buf != priv->command_buffer)
847 kfree(u.buf);
848 return ret;
849 }
850
851 static int rndis_reset(struct usbnet *usbdev)
852 {
853 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
854 struct rndis_reset *reset;
855 int ret;
856
857 mutex_lock(&priv->command_lock);
858
859 reset = (void *)priv->command_buffer;
860 memset(reset, 0, sizeof(*reset));
861 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
862 reset->msg_len = cpu_to_le32(sizeof(*reset));
863 priv->current_command_oid = 0;
864 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
865
866 mutex_unlock(&priv->command_lock);
867
868 if (ret < 0)
869 return ret;
870 return 0;
871 }
872
873 /*
874 * Specs say that we can only set config parameters only soon after device
875 * initialization.
876 * value_type: 0 = u32, 2 = unicode string
877 */
878 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
879 int value_type, void *value)
880 {
881 struct ndis_config_param *infobuf;
882 int value_len, info_len, param_len, ret, i;
883 __le16 *unibuf;
884 __le32 *dst_value;
885
886 if (value_type == 0)
887 value_len = sizeof(__le32);
888 else if (value_type == 2)
889 value_len = strlen(value) * sizeof(__le16);
890 else
891 return -EINVAL;
892
893 param_len = strlen(param) * sizeof(__le16);
894 info_len = sizeof(*infobuf) + param_len + value_len;
895
896 #ifdef DEBUG
897 info_len += 12;
898 #endif
899 infobuf = kmalloc(info_len, GFP_KERNEL);
900 if (!infobuf)
901 return -ENOMEM;
902
903 #ifdef DEBUG
904 info_len -= 12;
905 /* extra 12 bytes are for padding (debug output) */
906 memset(infobuf, 0xCC, info_len + 12);
907 #endif
908
909 if (value_type == 2)
910 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
911 param, (u8 *)value);
912 else
913 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
914 param, *(u32 *)value);
915
916 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
917 infobuf->name_length = cpu_to_le32(param_len);
918 infobuf->type = cpu_to_le32(value_type);
919 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
920 infobuf->value_length = cpu_to_le32(value_len);
921
922 /* simple string to unicode string conversion */
923 unibuf = (void *)infobuf + sizeof(*infobuf);
924 for (i = 0; i < param_len / sizeof(__le16); i++)
925 unibuf[i] = cpu_to_le16(param[i]);
926
927 if (value_type == 2) {
928 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
929 for (i = 0; i < value_len / sizeof(__le16); i++)
930 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
931 } else {
932 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
933 *dst_value = cpu_to_le32(*(u32 *)value);
934 }
935
936 #ifdef DEBUG
937 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
938 for (i = 0; i < info_len; i += 12) {
939 u32 *tmp = (u32 *)((u8 *)infobuf + i);
940 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
941 cpu_to_be32(tmp[0]),
942 cpu_to_be32(tmp[1]),
943 cpu_to_be32(tmp[2]));
944 }
945 #endif
946
947 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
948 infobuf, info_len);
949 if (ret != 0)
950 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
951 ret);
952
953 kfree(infobuf);
954 return ret;
955 }
956
957 static int rndis_set_config_parameter_str(struct usbnet *dev,
958 char *param, char *value)
959 {
960 return rndis_set_config_parameter(dev, param, 2, value);
961 }
962
963 /*
964 * data conversion functions
965 */
966 static int level_to_qual(int level)
967 {
968 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
969 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
970 }
971
972 /*
973 * common functions
974 */
975 static int set_infra_mode(struct usbnet *usbdev, int mode);
976 static void restore_keys(struct usbnet *usbdev);
977 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
978 bool *matched);
979
980 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
981 {
982 __le32 tmp;
983
984 /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
985 tmp = cpu_to_le32(1);
986 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
987 sizeof(tmp));
988 }
989
990 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
991 {
992 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
993 int ret;
994
995 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
996 ssid, sizeof(*ssid));
997 if (ret < 0) {
998 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
999 return ret;
1000 }
1001 if (ret == 0) {
1002 priv->radio_on = true;
1003 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1004 }
1005
1006 return ret;
1007 }
1008
1009 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1010 {
1011 int ret;
1012
1013 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1014 bssid, ETH_ALEN);
1015 if (ret < 0) {
1016 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1017 bssid, ret);
1018 return ret;
1019 }
1020
1021 return ret;
1022 }
1023
1024 static int clear_bssid(struct usbnet *usbdev)
1025 {
1026 static const u8 broadcast_mac[ETH_ALEN] = {
1027 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1028 };
1029
1030 return set_bssid(usbdev, broadcast_mac);
1031 }
1032
1033 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1034 {
1035 int ret, len;
1036
1037 len = ETH_ALEN;
1038 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1039 bssid, &len);
1040
1041 if (ret != 0)
1042 memset(bssid, 0, ETH_ALEN);
1043
1044 return ret;
1045 }
1046
1047 static int get_association_info(struct usbnet *usbdev,
1048 struct ndis_80211_assoc_info *info, int len)
1049 {
1050 return rndis_query_oid(usbdev,
1051 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1052 info, &len);
1053 }
1054
1055 static bool is_associated(struct usbnet *usbdev)
1056 {
1057 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1058 u8 bssid[ETH_ALEN];
1059 int ret;
1060
1061 if (!priv->radio_on)
1062 return false;
1063
1064 ret = get_bssid(usbdev, bssid);
1065
1066 return (ret == 0 && !is_zero_ether_addr(bssid));
1067 }
1068
1069 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1070 {
1071 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1072 struct ndis_80211_ssid ssid;
1073 int i, ret = 0;
1074
1075 if (priv->radio_on) {
1076 ret = rndis_set_oid(usbdev,
1077 RNDIS_OID_802_11_DISASSOCIATE,
1078 NULL, 0);
1079 if (ret == 0) {
1080 priv->radio_on = false;
1081 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1082 __func__);
1083
1084 if (reset_ssid)
1085 msleep(100);
1086 }
1087 }
1088
1089 /* disassociate causes radio to be turned off; if reset_ssid
1090 * is given, set random ssid to enable radio */
1091 if (reset_ssid) {
1092 /* Set device to infrastructure mode so we don't get ad-hoc
1093 * 'media connect' indications with the random ssid.
1094 */
1095 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1096
1097 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1098 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1099 ssid.essid[0] = 0x1;
1100 ssid.essid[1] = 0xff;
1101 for (i = 2; i < sizeof(ssid.essid); i++)
1102 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1103 ret = set_essid(usbdev, &ssid);
1104 }
1105 return ret;
1106 }
1107
1108 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1109 enum nl80211_auth_type auth_type, int keymgmt)
1110 {
1111 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1112 __le32 tmp;
1113 int auth_mode, ret;
1114
1115 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1116 __func__, wpa_version, auth_type, keymgmt);
1117
1118 if (wpa_version & NL80211_WPA_VERSION_2) {
1119 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1120 auth_mode = NDIS_80211_AUTH_WPA2;
1121 else
1122 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1123 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1124 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1125 auth_mode = NDIS_80211_AUTH_WPA;
1126 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1127 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1128 else
1129 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1130 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1131 auth_mode = NDIS_80211_AUTH_SHARED;
1132 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1133 auth_mode = NDIS_80211_AUTH_OPEN;
1134 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1135 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1136 else
1137 return -ENOTSUPP;
1138
1139 tmp = cpu_to_le32(auth_mode);
1140 ret = rndis_set_oid(usbdev,
1141 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1142 &tmp, sizeof(tmp));
1143 if (ret != 0) {
1144 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1145 ret);
1146 return ret;
1147 }
1148
1149 priv->wpa_version = wpa_version;
1150
1151 return 0;
1152 }
1153
1154 static int set_priv_filter(struct usbnet *usbdev)
1155 {
1156 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1157 __le32 tmp;
1158
1159 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1160 __func__, priv->wpa_version);
1161
1162 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1163 priv->wpa_version & NL80211_WPA_VERSION_1)
1164 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1165 else
1166 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1167
1168 return rndis_set_oid(usbdev,
1169 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1170 sizeof(tmp));
1171 }
1172
1173 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1174 {
1175 __le32 tmp;
1176 int encr_mode, ret;
1177
1178 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1179 __func__, pairwise, groupwise);
1180
1181 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1182 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1183 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1184 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1185 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1186 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1187 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1188 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1189 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1190 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1191 else
1192 encr_mode = NDIS_80211_ENCR_DISABLED;
1193
1194 tmp = cpu_to_le32(encr_mode);
1195 ret = rndis_set_oid(usbdev,
1196 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1197 sizeof(tmp));
1198 if (ret != 0) {
1199 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1200 ret);
1201 return ret;
1202 }
1203
1204 return 0;
1205 }
1206
1207 static int set_infra_mode(struct usbnet *usbdev, int mode)
1208 {
1209 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1210 __le32 tmp;
1211 int ret;
1212
1213 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1214 __func__, priv->infra_mode);
1215
1216 tmp = cpu_to_le32(mode);
1217 ret = rndis_set_oid(usbdev,
1218 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1219 &tmp, sizeof(tmp));
1220 if (ret != 0) {
1221 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1222 ret);
1223 return ret;
1224 }
1225
1226 /* NDIS drivers clear keys when infrastructure mode is
1227 * changed. But Linux tools assume otherwise. So set the
1228 * keys */
1229 restore_keys(usbdev);
1230
1231 priv->infra_mode = mode;
1232 return 0;
1233 }
1234
1235 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1236 {
1237 __le32 tmp;
1238
1239 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1240
1241 if (rts_threshold < 0 || rts_threshold > 2347)
1242 rts_threshold = 2347;
1243
1244 tmp = cpu_to_le32(rts_threshold);
1245 return rndis_set_oid(usbdev,
1246 RNDIS_OID_802_11_RTS_THRESHOLD,
1247 &tmp, sizeof(tmp));
1248 }
1249
1250 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1251 {
1252 __le32 tmp;
1253
1254 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1255
1256 if (frag_threshold < 256 || frag_threshold > 2346)
1257 frag_threshold = 2346;
1258
1259 tmp = cpu_to_le32(frag_threshold);
1260 return rndis_set_oid(usbdev,
1261 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1262 &tmp, sizeof(tmp));
1263 }
1264
1265 static void set_default_iw_params(struct usbnet *usbdev)
1266 {
1267 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1268 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1269 RNDIS_WLAN_KEY_MGMT_NONE);
1270 set_priv_filter(usbdev);
1271 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1272 }
1273
1274 static int deauthenticate(struct usbnet *usbdev)
1275 {
1276 int ret;
1277
1278 ret = disassociate(usbdev, true);
1279 set_default_iw_params(usbdev);
1280 return ret;
1281 }
1282
1283 static int set_channel(struct usbnet *usbdev, int channel)
1284 {
1285 struct ndis_80211_conf config;
1286 unsigned int dsconfig;
1287 int len, ret;
1288
1289 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1290
1291 /* this OID is valid only when not associated */
1292 if (is_associated(usbdev))
1293 return 0;
1294
1295 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1296
1297 len = sizeof(config);
1298 ret = rndis_query_oid(usbdev,
1299 RNDIS_OID_802_11_CONFIGURATION,
1300 &config, &len);
1301 if (ret < 0) {
1302 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1303 __func__);
1304 return ret;
1305 }
1306
1307 config.ds_config = cpu_to_le32(dsconfig);
1308 ret = rndis_set_oid(usbdev,
1309 RNDIS_OID_802_11_CONFIGURATION,
1310 &config, sizeof(config));
1311
1312 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1313
1314 return ret;
1315 }
1316
1317 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1318 u32 *beacon_period)
1319 {
1320 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1321 struct ieee80211_channel *channel;
1322 struct ndis_80211_conf config;
1323 int len, ret;
1324
1325 /* Get channel and beacon interval */
1326 len = sizeof(config);
1327 ret = rndis_query_oid(usbdev,
1328 RNDIS_OID_802_11_CONFIGURATION,
1329 &config, &len);
1330 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1331 __func__, ret);
1332 if (ret < 0)
1333 return NULL;
1334
1335 channel = ieee80211_get_channel(priv->wdev.wiphy,
1336 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1337 if (!channel)
1338 return NULL;
1339
1340 if (beacon_period)
1341 *beacon_period = le32_to_cpu(config.beacon_period);
1342 return channel;
1343 }
1344
1345 /* index must be 0 - N, as per NDIS */
1346 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1347 u8 index)
1348 {
1349 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1350 struct ndis_80211_wep_key ndis_key;
1351 u32 cipher;
1352 int ret;
1353
1354 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1355 __func__, index, key_len);
1356
1357 if (index >= RNDIS_WLAN_NUM_KEYS)
1358 return -EINVAL;
1359
1360 if (key_len == 5)
1361 cipher = WLAN_CIPHER_SUITE_WEP40;
1362 else if (key_len == 13)
1363 cipher = WLAN_CIPHER_SUITE_WEP104;
1364 else
1365 return -EINVAL;
1366
1367 memset(&ndis_key, 0, sizeof(ndis_key));
1368
1369 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1370 ndis_key.length = cpu_to_le32(key_len);
1371 ndis_key.index = cpu_to_le32(index);
1372 memcpy(&ndis_key.material, key, key_len);
1373
1374 if (index == priv->encr_tx_key_index) {
1375 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1376 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1377 RNDIS_WLAN_ALG_NONE);
1378 if (ret)
1379 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1380 ret);
1381 }
1382
1383 ret = rndis_set_oid(usbdev,
1384 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1385 sizeof(ndis_key));
1386 if (ret != 0) {
1387 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1388 index + 1, ret);
1389 return ret;
1390 }
1391
1392 priv->encr_keys[index].len = key_len;
1393 priv->encr_keys[index].cipher = cipher;
1394 memcpy(&priv->encr_keys[index].material, key, key_len);
1395 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1396
1397 return 0;
1398 }
1399
1400 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1401 u8 index, const u8 *addr, const u8 *rx_seq,
1402 int seq_len, u32 cipher, __le32 flags)
1403 {
1404 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1405 struct ndis_80211_key ndis_key;
1406 bool is_addr_ok;
1407 int ret;
1408
1409 if (index >= RNDIS_WLAN_NUM_KEYS) {
1410 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1411 __func__, index);
1412 return -EINVAL;
1413 }
1414 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1415 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1416 __func__, key_len);
1417 return -EINVAL;
1418 }
1419 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1420 if (!rx_seq || seq_len <= 0) {
1421 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1422 __func__);
1423 return -EINVAL;
1424 }
1425 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1426 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1427 return -EINVAL;
1428 }
1429 }
1430
1431 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1432 !is_broadcast_ether_addr(addr);
1433 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1434 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1435 __func__, addr);
1436 return -EINVAL;
1437 }
1438
1439 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1440 __func__, index,
1441 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1442 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1443 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1444
1445 memset(&ndis_key, 0, sizeof(ndis_key));
1446
1447 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1448 sizeof(ndis_key.material) + key_len);
1449 ndis_key.length = cpu_to_le32(key_len);
1450 ndis_key.index = cpu_to_le32(index) | flags;
1451
1452 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1453 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1454 * different order than NDIS spec, so swap the order here. */
1455 memcpy(ndis_key.material, key, 16);
1456 memcpy(ndis_key.material + 16, key + 24, 8);
1457 memcpy(ndis_key.material + 24, key + 16, 8);
1458 } else
1459 memcpy(ndis_key.material, key, key_len);
1460
1461 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1462 memcpy(ndis_key.rsc, rx_seq, seq_len);
1463
1464 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1465 /* pairwise key */
1466 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1467 } else {
1468 /* group key */
1469 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1470 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1471 else
1472 get_bssid(usbdev, ndis_key.bssid);
1473 }
1474
1475 ret = rndis_set_oid(usbdev,
1476 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1477 le32_to_cpu(ndis_key.size));
1478 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1479 __func__, ret);
1480 if (ret != 0)
1481 return ret;
1482
1483 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1484 priv->encr_keys[index].len = key_len;
1485 priv->encr_keys[index].cipher = cipher;
1486 memcpy(&priv->encr_keys[index].material, key, key_len);
1487 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1488 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1489 else
1490 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1491
1492 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1493 priv->encr_tx_key_index = index;
1494
1495 return 0;
1496 }
1497
1498 static int restore_key(struct usbnet *usbdev, u8 key_idx)
1499 {
1500 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1501 struct rndis_wlan_encr_key key;
1502
1503 if (is_wpa_key(priv, key_idx))
1504 return 0;
1505
1506 key = priv->encr_keys[key_idx];
1507
1508 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1509
1510 if (key.len == 0)
1511 return 0;
1512
1513 return add_wep_key(usbdev, key.material, key.len, key_idx);
1514 }
1515
1516 static void restore_keys(struct usbnet *usbdev)
1517 {
1518 int i;
1519
1520 for (i = 0; i < 4; i++)
1521 restore_key(usbdev, i);
1522 }
1523
1524 static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1525 {
1526 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1527 }
1528
1529 /* remove_key is for both wep and wpa */
1530 static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1531 {
1532 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1533 struct ndis_80211_remove_key remove_key;
1534 __le32 keyindex;
1535 bool is_wpa;
1536 int ret;
1537
1538 if (index >= RNDIS_WLAN_NUM_KEYS)
1539 return -ENOENT;
1540
1541 if (priv->encr_keys[index].len == 0)
1542 return 0;
1543
1544 is_wpa = is_wpa_key(priv, index);
1545
1546 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1547 __func__, index, is_wpa ? "wpa" : "wep",
1548 priv->encr_keys[index].len);
1549
1550 clear_key(priv, index);
1551
1552 if (is_wpa) {
1553 remove_key.size = cpu_to_le32(sizeof(remove_key));
1554 remove_key.index = cpu_to_le32(index);
1555 if (bssid) {
1556 /* pairwise key */
1557 if (!is_broadcast_ether_addr(bssid))
1558 remove_key.index |=
1559 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1560 memcpy(remove_key.bssid, bssid,
1561 sizeof(remove_key.bssid));
1562 } else
1563 memset(remove_key.bssid, 0xff,
1564 sizeof(remove_key.bssid));
1565
1566 ret = rndis_set_oid(usbdev,
1567 RNDIS_OID_802_11_REMOVE_KEY,
1568 &remove_key, sizeof(remove_key));
1569 if (ret != 0)
1570 return ret;
1571 } else {
1572 keyindex = cpu_to_le32(index);
1573 ret = rndis_set_oid(usbdev,
1574 RNDIS_OID_802_11_REMOVE_WEP,
1575 &keyindex, sizeof(keyindex));
1576 if (ret != 0) {
1577 netdev_warn(usbdev->net,
1578 "removing encryption key %d failed (%08X)\n",
1579 index, ret);
1580 return ret;
1581 }
1582 }
1583
1584 /* if it is transmit key, disable encryption */
1585 if (index == priv->encr_tx_key_index)
1586 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1587
1588 return 0;
1589 }
1590
1591 static void set_multicast_list(struct usbnet *usbdev)
1592 {
1593 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1594 struct netdev_hw_addr *ha;
1595 __le32 filter, basefilter;
1596 int ret;
1597 char *mc_addrs = NULL;
1598 int mc_count;
1599
1600 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1601 RNDIS_PACKET_TYPE_BROADCAST);
1602
1603 if (usbdev->net->flags & IFF_PROMISC) {
1604 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1605 RNDIS_PACKET_TYPE_ALL_LOCAL);
1606 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1607 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1608 }
1609
1610 if (filter != basefilter)
1611 goto set_filter;
1612
1613 /*
1614 * mc_list should be accessed holding the lock, so copy addresses to
1615 * local buffer first.
1616 */
1617 netif_addr_lock_bh(usbdev->net);
1618 mc_count = netdev_mc_count(usbdev->net);
1619 if (mc_count > priv->multicast_size) {
1620 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1621 } else if (mc_count) {
1622 int i = 0;
1623
1624 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1625 if (!mc_addrs) {
1626 netdev_warn(usbdev->net,
1627 "couldn't alloc %d bytes of memory\n",
1628 mc_count * ETH_ALEN);
1629 netif_addr_unlock_bh(usbdev->net);
1630 return;
1631 }
1632
1633 netdev_for_each_mc_addr(ha, usbdev->net)
1634 memcpy(mc_addrs + i++ * ETH_ALEN,
1635 ha->addr, ETH_ALEN);
1636 }
1637 netif_addr_unlock_bh(usbdev->net);
1638
1639 if (filter != basefilter)
1640 goto set_filter;
1641
1642 if (mc_count) {
1643 ret = rndis_set_oid(usbdev,
1644 RNDIS_OID_802_3_MULTICAST_LIST,
1645 mc_addrs, mc_count * ETH_ALEN);
1646 kfree(mc_addrs);
1647 if (ret == 0)
1648 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1649 else
1650 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1651
1652 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1653 mc_count, priv->multicast_size, ret);
1654 }
1655
1656 set_filter:
1657 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1658 sizeof(filter));
1659 if (ret < 0) {
1660 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1661 le32_to_cpu(filter));
1662 }
1663
1664 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1665 le32_to_cpu(filter), ret);
1666 }
1667
1668 #ifdef DEBUG
1669 static void debug_print_pmkids(struct usbnet *usbdev,
1670 struct ndis_80211_pmkid *pmkids,
1671 const char *func_str)
1672 {
1673 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1674 int i, len, count, max_pmkids, entry_len;
1675
1676 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1677 len = le32_to_cpu(pmkids->length);
1678 count = le32_to_cpu(pmkids->bssid_info_count);
1679
1680 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1681
1682 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1683 "%d)\n", func_str, count, len, entry_len);
1684
1685 if (count > max_pmkids)
1686 count = max_pmkids;
1687
1688 for (i = 0; i < count; i++) {
1689 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1690
1691 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1692 "pmkid: %08X:%08X:%08X:%08X\n",
1693 func_str, pmkids->bssid_info[i].bssid,
1694 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1695 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1696 }
1697 }
1698 #else
1699 static void debug_print_pmkids(struct usbnet *usbdev,
1700 struct ndis_80211_pmkid *pmkids,
1701 const char *func_str)
1702 {
1703 return;
1704 }
1705 #endif
1706
1707 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1708 {
1709 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1710 struct ndis_80211_pmkid *pmkids;
1711 int len, ret, max_pmkids;
1712
1713 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1714 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1715
1716 pmkids = kzalloc(len, GFP_KERNEL);
1717 if (!pmkids)
1718 return ERR_PTR(-ENOMEM);
1719
1720 pmkids->length = cpu_to_le32(len);
1721 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1722
1723 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1724 pmkids, &len);
1725 if (ret < 0) {
1726 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1727 " -> %d\n", __func__, len, max_pmkids, ret);
1728
1729 kfree(pmkids);
1730 return ERR_PTR(ret);
1731 }
1732
1733 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1734 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1735
1736 debug_print_pmkids(usbdev, pmkids, __func__);
1737
1738 return pmkids;
1739 }
1740
1741 static int set_device_pmkids(struct usbnet *usbdev,
1742 struct ndis_80211_pmkid *pmkids)
1743 {
1744 int ret, len, num_pmkids;
1745
1746 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1747 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1748 pmkids->length = cpu_to_le32(len);
1749
1750 debug_print_pmkids(usbdev, pmkids, __func__);
1751
1752 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1753 le32_to_cpu(pmkids->length));
1754 if (ret < 0) {
1755 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1756 "\n", __func__, len, num_pmkids, ret);
1757 }
1758
1759 kfree(pmkids);
1760 return ret;
1761 }
1762
1763 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1764 struct ndis_80211_pmkid *pmkids,
1765 struct cfg80211_pmksa *pmksa,
1766 int max_pmkids)
1767 {
1768 int i, newlen, err;
1769 unsigned int count;
1770
1771 count = le32_to_cpu(pmkids->bssid_info_count);
1772
1773 if (count > max_pmkids)
1774 count = max_pmkids;
1775
1776 for (i = 0; i < count; i++)
1777 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1778 pmksa->bssid))
1779 break;
1780
1781 /* pmkid not found */
1782 if (i == count) {
1783 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1784 __func__, pmksa->bssid);
1785 err = -ENOENT;
1786 goto error;
1787 }
1788
1789 for (; i + 1 < count; i++)
1790 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1791
1792 count--;
1793 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1794
1795 pmkids->length = cpu_to_le32(newlen);
1796 pmkids->bssid_info_count = cpu_to_le32(count);
1797
1798 return pmkids;
1799 error:
1800 kfree(pmkids);
1801 return ERR_PTR(err);
1802 }
1803
1804 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1805 struct ndis_80211_pmkid *pmkids,
1806 struct cfg80211_pmksa *pmksa,
1807 int max_pmkids)
1808 {
1809 struct ndis_80211_pmkid *new_pmkids;
1810 int i, err, newlen;
1811 unsigned int count;
1812
1813 count = le32_to_cpu(pmkids->bssid_info_count);
1814
1815 if (count > max_pmkids)
1816 count = max_pmkids;
1817
1818 /* update with new pmkid */
1819 for (i = 0; i < count; i++) {
1820 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1821 pmksa->bssid))
1822 continue;
1823
1824 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1825 WLAN_PMKID_LEN);
1826
1827 return pmkids;
1828 }
1829
1830 /* out of space, return error */
1831 if (i == max_pmkids) {
1832 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1833 err = -ENOSPC;
1834 goto error;
1835 }
1836
1837 /* add new pmkid */
1838 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1839
1840 new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1841 if (!new_pmkids) {
1842 err = -ENOMEM;
1843 goto error;
1844 }
1845 pmkids = new_pmkids;
1846
1847 pmkids->length = cpu_to_le32(newlen);
1848 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1849
1850 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1851 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1852
1853 return pmkids;
1854 error:
1855 kfree(pmkids);
1856 return ERR_PTR(err);
1857 }
1858
1859 /*
1860 * cfg80211 ops
1861 */
1862 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1863 struct net_device *dev,
1864 enum nl80211_iftype type, u32 *flags,
1865 struct vif_params *params)
1866 {
1867 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1868 struct usbnet *usbdev = priv->usbdev;
1869 int mode;
1870
1871 switch (type) {
1872 case NL80211_IFTYPE_ADHOC:
1873 mode = NDIS_80211_INFRA_ADHOC;
1874 break;
1875 case NL80211_IFTYPE_STATION:
1876 mode = NDIS_80211_INFRA_INFRA;
1877 break;
1878 default:
1879 return -EINVAL;
1880 }
1881
1882 priv->wdev.iftype = type;
1883
1884 return set_infra_mode(usbdev, mode);
1885 }
1886
1887 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1888 {
1889 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1890 struct usbnet *usbdev = priv->usbdev;
1891 int err;
1892
1893 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1894 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1895 if (err < 0)
1896 return err;
1897 }
1898
1899 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1900 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1901 if (err < 0)
1902 return err;
1903 }
1904
1905 return 0;
1906 }
1907
1908 static int rndis_set_tx_power(struct wiphy *wiphy,
1909 struct wireless_dev *wdev,
1910 enum nl80211_tx_power_setting type,
1911 int mbm)
1912 {
1913 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1914 struct usbnet *usbdev = priv->usbdev;
1915
1916 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1917 __func__, type, mbm);
1918
1919 if (mbm < 0 || (mbm % 100))
1920 return -ENOTSUPP;
1921
1922 /* Device doesn't support changing txpower after initialization, only
1923 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1924 * currently used.
1925 */
1926 if (type == NL80211_TX_POWER_AUTOMATIC ||
1927 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1928 if (!priv->radio_on)
1929 disassociate(usbdev, true); /* turn on radio */
1930
1931 return 0;
1932 }
1933
1934 return -ENOTSUPP;
1935 }
1936
1937 static int rndis_get_tx_power(struct wiphy *wiphy,
1938 struct wireless_dev *wdev,
1939 int *dbm)
1940 {
1941 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1942 struct usbnet *usbdev = priv->usbdev;
1943
1944 *dbm = get_bcm4320_power_dbm(priv);
1945
1946 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1947
1948 return 0;
1949 }
1950
1951 #define SCAN_DELAY_JIFFIES (6 * HZ)
1952 static int rndis_scan(struct wiphy *wiphy,
1953 struct cfg80211_scan_request *request)
1954 {
1955 struct net_device *dev = request->wdev->netdev;
1956 struct usbnet *usbdev = netdev_priv(dev);
1957 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1958 int ret;
1959 int delay = SCAN_DELAY_JIFFIES;
1960
1961 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1962
1963 /* Get current bssid list from device before new scan, as new scan
1964 * clears internal bssid list.
1965 */
1966 rndis_check_bssid_list(usbdev, NULL, NULL);
1967
1968 if (priv->scan_request && priv->scan_request != request)
1969 return -EBUSY;
1970
1971 priv->scan_request = request;
1972
1973 ret = rndis_start_bssid_list_scan(usbdev);
1974 if (ret == 0) {
1975 if (priv->device_type == RNDIS_BCM4320A)
1976 delay = HZ;
1977
1978 /* Wait before retrieving scan results from device */
1979 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1980 }
1981
1982 return ret;
1983 }
1984
1985 static bool rndis_bss_info_update(struct usbnet *usbdev,
1986 struct ndis_80211_bssid_ex *bssid)
1987 {
1988 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1989 struct ieee80211_channel *channel;
1990 struct cfg80211_bss *bss;
1991 s32 signal;
1992 u64 timestamp;
1993 u16 capability;
1994 u16 beacon_interval;
1995 struct ndis_80211_fixed_ies *fixed;
1996 int ie_len, bssid_len;
1997 u8 *ie;
1998
1999 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
2000 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
2001
2002 /* parse bssid structure */
2003 bssid_len = le32_to_cpu(bssid->length);
2004
2005 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2006 sizeof(struct ndis_80211_fixed_ies))
2007 return NULL;
2008
2009 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2010
2011 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2012 ie_len = min(bssid_len - (int)sizeof(*bssid),
2013 (int)le32_to_cpu(bssid->ie_length));
2014 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2015 if (ie_len < 0)
2016 return NULL;
2017
2018 /* extract data for cfg80211_inform_bss */
2019 channel = ieee80211_get_channel(priv->wdev.wiphy,
2020 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2021 if (!channel)
2022 return NULL;
2023
2024 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2025 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2026 capability = le16_to_cpu(fixed->capabilities);
2027 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2028
2029 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2030 timestamp, capability, beacon_interval, ie, ie_len, signal,
2031 GFP_KERNEL);
2032 cfg80211_put_bss(bss);
2033
2034 return (bss != NULL);
2035 }
2036
2037 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2038 struct ndis_80211_bssid_ex *bssid,
2039 int *bssid_len, void *buf, int len)
2040 {
2041 void *buf_end, *bssid_end;
2042
2043 buf_end = (char *)buf + len;
2044 bssid_end = (char *)bssid + *bssid_len;
2045
2046 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2047 *bssid_len = 0;
2048 return NULL;
2049 } else {
2050 bssid = (void *)((char *)bssid + *bssid_len);
2051 *bssid_len = le32_to_cpu(bssid->length);
2052 return bssid;
2053 }
2054 }
2055
2056 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2057 int bssid_len, void *buf, int len)
2058 {
2059 void *buf_end, *bssid_end;
2060
2061 if (!bssid || bssid_len <= 0 || bssid_len > len)
2062 return false;
2063
2064 buf_end = (char *)buf + len;
2065 bssid_end = (char *)bssid + bssid_len;
2066
2067 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2068 }
2069
2070 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2071 bool *matched)
2072 {
2073 void *buf = NULL;
2074 struct ndis_80211_bssid_list_ex *bssid_list;
2075 struct ndis_80211_bssid_ex *bssid;
2076 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2077
2078 netdev_dbg(usbdev->net, "%s()\n", __func__);
2079
2080 len = CONTROL_BUFFER_SIZE;
2081 resize_buf:
2082 buf = kzalloc(len, GFP_KERNEL);
2083 if (!buf) {
2084 ret = -ENOMEM;
2085 goto out;
2086 }
2087
2088 /* BSSID-list might have got bigger last time we checked, keep
2089 * resizing until it won't get any bigger.
2090 */
2091 new_len = len;
2092 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2093 buf, &new_len);
2094 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2095 goto out;
2096
2097 if (new_len > len) {
2098 len = new_len;
2099 kfree(buf);
2100 goto resize_buf;
2101 }
2102
2103 len = new_len;
2104
2105 bssid_list = buf;
2106 count = le32_to_cpu(bssid_list->num_items);
2107 real_count = 0;
2108 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2109
2110 bssid_len = 0;
2111 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2112
2113 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2114 * received 'num_items' and walking through full bssid buffer instead.
2115 */
2116 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2117 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2118 matched) {
2119 if (ether_addr_equal(bssid->mac, match_bssid))
2120 *matched = true;
2121 }
2122
2123 real_count++;
2124 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2125 }
2126
2127 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2128 " %d\n", __func__, count, real_count);
2129
2130 out:
2131 kfree(buf);
2132 return ret;
2133 }
2134
2135 static void rndis_get_scan_results(struct work_struct *work)
2136 {
2137 struct rndis_wlan_private *priv =
2138 container_of(work, struct rndis_wlan_private, scan_work.work);
2139 struct usbnet *usbdev = priv->usbdev;
2140 int ret;
2141
2142 netdev_dbg(usbdev->net, "get_scan_results\n");
2143
2144 if (!priv->scan_request)
2145 return;
2146
2147 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2148
2149 cfg80211_scan_done(priv->scan_request, ret < 0);
2150
2151 priv->scan_request = NULL;
2152 }
2153
2154 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2155 struct cfg80211_connect_params *sme)
2156 {
2157 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2158 struct usbnet *usbdev = priv->usbdev;
2159 struct ieee80211_channel *channel = sme->channel;
2160 struct ndis_80211_ssid ssid;
2161 int pairwise = RNDIS_WLAN_ALG_NONE;
2162 int groupwise = RNDIS_WLAN_ALG_NONE;
2163 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2164 int length, i, ret, chan = -1;
2165
2166 if (channel)
2167 chan = ieee80211_frequency_to_channel(channel->center_freq);
2168
2169 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2170 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2171 pairwise |=
2172 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2173
2174 if (sme->crypto.n_ciphers_pairwise > 0 &&
2175 pairwise == RNDIS_WLAN_ALG_NONE) {
2176 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2177 return -ENOTSUPP;
2178 }
2179
2180 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2181 keymgmt |=
2182 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2183
2184 if (sme->crypto.n_akm_suites > 0 &&
2185 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2186 netdev_err(usbdev->net, "Invalid keymgmt\n");
2187 return -ENOTSUPP;
2188 }
2189
2190 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2191 sme->ssid, sme->bssid, chan,
2192 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2193 groupwise, pairwise, keymgmt);
2194
2195 if (is_associated(usbdev))
2196 disassociate(usbdev, false);
2197
2198 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2199 if (ret < 0) {
2200 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2201 ret);
2202 goto err_turn_radio_on;
2203 }
2204
2205 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2206 keymgmt);
2207 if (ret < 0) {
2208 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2209 ret);
2210 goto err_turn_radio_on;
2211 }
2212
2213 set_priv_filter(usbdev);
2214
2215 ret = set_encr_mode(usbdev, pairwise, groupwise);
2216 if (ret < 0) {
2217 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2218 ret);
2219 goto err_turn_radio_on;
2220 }
2221
2222 if (channel) {
2223 ret = set_channel(usbdev, chan);
2224 if (ret < 0) {
2225 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2226 ret);
2227 goto err_turn_radio_on;
2228 }
2229 }
2230
2231 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2232 priv->encr_tx_key_index = sme->key_idx;
2233 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2234 if (ret < 0) {
2235 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2236 ret, sme->key_len, sme->key_idx);
2237 goto err_turn_radio_on;
2238 }
2239 }
2240
2241 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2242 !is_broadcast_ether_addr(sme->bssid)) {
2243 ret = set_bssid(usbdev, sme->bssid);
2244 if (ret < 0) {
2245 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2246 ret);
2247 goto err_turn_radio_on;
2248 }
2249 } else
2250 clear_bssid(usbdev);
2251
2252 length = sme->ssid_len;
2253 if (length > NDIS_802_11_LENGTH_SSID)
2254 length = NDIS_802_11_LENGTH_SSID;
2255
2256 memset(&ssid, 0, sizeof(ssid));
2257 ssid.length = cpu_to_le32(length);
2258 memcpy(ssid.essid, sme->ssid, length);
2259
2260 /* Pause and purge rx queue, so we don't pass packets before
2261 * 'media connect'-indication.
2262 */
2263 usbnet_pause_rx(usbdev);
2264 usbnet_purge_paused_rxq(usbdev);
2265
2266 ret = set_essid(usbdev, &ssid);
2267 if (ret < 0)
2268 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2269 return ret;
2270
2271 err_turn_radio_on:
2272 disassociate(usbdev, true);
2273
2274 return ret;
2275 }
2276
2277 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2278 u16 reason_code)
2279 {
2280 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2281 struct usbnet *usbdev = priv->usbdev;
2282
2283 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2284
2285 priv->connected = false;
2286 memset(priv->bssid, 0, ETH_ALEN);
2287
2288 return deauthenticate(usbdev);
2289 }
2290
2291 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2292 struct cfg80211_ibss_params *params)
2293 {
2294 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2295 struct usbnet *usbdev = priv->usbdev;
2296 struct ieee80211_channel *channel = params->channel;
2297 struct ndis_80211_ssid ssid;
2298 enum nl80211_auth_type auth_type;
2299 int ret, alg, length, chan = -1;
2300
2301 if (channel)
2302 chan = ieee80211_frequency_to_channel(channel->center_freq);
2303
2304 /* TODO: How to handle ad-hoc encryption?
2305 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2306 * pre-shared for encryption (open/shared/wpa), is key set before
2307 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2308 */
2309 if (params->privacy) {
2310 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2311 alg = RNDIS_WLAN_ALG_WEP;
2312 } else {
2313 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2314 alg = RNDIS_WLAN_ALG_NONE;
2315 }
2316
2317 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2318 params->ssid, params->bssid, chan, params->privacy);
2319
2320 if (is_associated(usbdev))
2321 disassociate(usbdev, false);
2322
2323 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2324 if (ret < 0) {
2325 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2326 ret);
2327 goto err_turn_radio_on;
2328 }
2329
2330 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2331 if (ret < 0) {
2332 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2333 ret);
2334 goto err_turn_radio_on;
2335 }
2336
2337 set_priv_filter(usbdev);
2338
2339 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2340 if (ret < 0) {
2341 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2342 ret);
2343 goto err_turn_radio_on;
2344 }
2345
2346 if (channel) {
2347 ret = set_channel(usbdev, chan);
2348 if (ret < 0) {
2349 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2350 ret);
2351 goto err_turn_radio_on;
2352 }
2353 }
2354
2355 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2356 !is_broadcast_ether_addr(params->bssid)) {
2357 ret = set_bssid(usbdev, params->bssid);
2358 if (ret < 0) {
2359 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2360 ret);
2361 goto err_turn_radio_on;
2362 }
2363 } else
2364 clear_bssid(usbdev);
2365
2366 length = params->ssid_len;
2367 if (length > NDIS_802_11_LENGTH_SSID)
2368 length = NDIS_802_11_LENGTH_SSID;
2369
2370 memset(&ssid, 0, sizeof(ssid));
2371 ssid.length = cpu_to_le32(length);
2372 memcpy(ssid.essid, params->ssid, length);
2373
2374 /* Don't need to pause rx queue for ad-hoc. */
2375 usbnet_purge_paused_rxq(usbdev);
2376 usbnet_resume_rx(usbdev);
2377
2378 ret = set_essid(usbdev, &ssid);
2379 if (ret < 0)
2380 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2381 ret);
2382 return ret;
2383
2384 err_turn_radio_on:
2385 disassociate(usbdev, true);
2386
2387 return ret;
2388 }
2389
2390 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2391 {
2392 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2393 struct usbnet *usbdev = priv->usbdev;
2394
2395 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2396
2397 priv->connected = false;
2398 memset(priv->bssid, 0, ETH_ALEN);
2399
2400 return deauthenticate(usbdev);
2401 }
2402
2403 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2404 u8 key_index, bool pairwise, const u8 *mac_addr,
2405 struct key_params *params)
2406 {
2407 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2408 struct usbnet *usbdev = priv->usbdev;
2409 __le32 flags;
2410
2411 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2412 __func__, key_index, mac_addr, params->cipher);
2413
2414 switch (params->cipher) {
2415 case WLAN_CIPHER_SUITE_WEP40:
2416 case WLAN_CIPHER_SUITE_WEP104:
2417 return add_wep_key(usbdev, params->key, params->key_len,
2418 key_index);
2419 case WLAN_CIPHER_SUITE_TKIP:
2420 case WLAN_CIPHER_SUITE_CCMP:
2421 flags = 0;
2422
2423 if (params->seq && params->seq_len > 0)
2424 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2425 if (mac_addr)
2426 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2427 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2428
2429 return add_wpa_key(usbdev, params->key, params->key_len,
2430 key_index, mac_addr, params->seq,
2431 params->seq_len, params->cipher, flags);
2432 default:
2433 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2434 __func__, params->cipher);
2435 return -ENOTSUPP;
2436 }
2437 }
2438
2439 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2440 u8 key_index, bool pairwise, const u8 *mac_addr)
2441 {
2442 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2443 struct usbnet *usbdev = priv->usbdev;
2444
2445 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2446
2447 return remove_key(usbdev, key_index, mac_addr);
2448 }
2449
2450 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2451 u8 key_index, bool unicast, bool multicast)
2452 {
2453 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2454 struct usbnet *usbdev = priv->usbdev;
2455 struct rndis_wlan_encr_key key;
2456
2457 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2458
2459 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2460 return -ENOENT;
2461
2462 priv->encr_tx_key_index = key_index;
2463
2464 if (is_wpa_key(priv, key_index))
2465 return 0;
2466
2467 key = priv->encr_keys[key_index];
2468
2469 return add_wep_key(usbdev, key.material, key.len, key_index);
2470 }
2471
2472 static void rndis_fill_station_info(struct usbnet *usbdev,
2473 struct station_info *sinfo)
2474 {
2475 __le32 linkspeed, rssi;
2476 int ret, len;
2477
2478 memset(sinfo, 0, sizeof(*sinfo));
2479
2480 len = sizeof(linkspeed);
2481 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2482 if (ret == 0) {
2483 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2484 sinfo->filled |= STATION_INFO_TX_BITRATE;
2485 }
2486
2487 len = sizeof(rssi);
2488 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2489 &rssi, &len);
2490 if (ret == 0) {
2491 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2492 sinfo->filled |= STATION_INFO_SIGNAL;
2493 }
2494 }
2495
2496 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2497 u8 *mac, struct station_info *sinfo)
2498 {
2499 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2500 struct usbnet *usbdev = priv->usbdev;
2501
2502 if (!ether_addr_equal(priv->bssid, mac))
2503 return -ENOENT;
2504
2505 rndis_fill_station_info(usbdev, sinfo);
2506
2507 return 0;
2508 }
2509
2510 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2511 int idx, u8 *mac, struct station_info *sinfo)
2512 {
2513 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2514 struct usbnet *usbdev = priv->usbdev;
2515
2516 if (idx != 0)
2517 return -ENOENT;
2518
2519 memcpy(mac, priv->bssid, ETH_ALEN);
2520
2521 rndis_fill_station_info(usbdev, sinfo);
2522
2523 return 0;
2524 }
2525
2526 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2527 struct cfg80211_pmksa *pmksa)
2528 {
2529 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2530 struct usbnet *usbdev = priv->usbdev;
2531 struct ndis_80211_pmkid *pmkids;
2532 u32 *tmp = (u32 *)pmksa->pmkid;
2533
2534 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2535 pmksa->bssid,
2536 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2537 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2538
2539 pmkids = get_device_pmkids(usbdev);
2540 if (IS_ERR(pmkids)) {
2541 /* couldn't read PMKID cache from device */
2542 return PTR_ERR(pmkids);
2543 }
2544
2545 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2546 if (IS_ERR(pmkids)) {
2547 /* not found, list full, etc */
2548 return PTR_ERR(pmkids);
2549 }
2550
2551 return set_device_pmkids(usbdev, pmkids);
2552 }
2553
2554 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2555 struct cfg80211_pmksa *pmksa)
2556 {
2557 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2558 struct usbnet *usbdev = priv->usbdev;
2559 struct ndis_80211_pmkid *pmkids;
2560 u32 *tmp = (u32 *)pmksa->pmkid;
2561
2562 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2563 pmksa->bssid,
2564 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2565 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2566
2567 pmkids = get_device_pmkids(usbdev);
2568 if (IS_ERR(pmkids)) {
2569 /* Couldn't read PMKID cache from device */
2570 return PTR_ERR(pmkids);
2571 }
2572
2573 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2574 if (IS_ERR(pmkids)) {
2575 /* not found, etc */
2576 return PTR_ERR(pmkids);
2577 }
2578
2579 return set_device_pmkids(usbdev, pmkids);
2580 }
2581
2582 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2583 {
2584 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2585 struct usbnet *usbdev = priv->usbdev;
2586 struct ndis_80211_pmkid pmkid;
2587
2588 netdev_dbg(usbdev->net, "%s()\n", __func__);
2589
2590 memset(&pmkid, 0, sizeof(pmkid));
2591
2592 pmkid.length = cpu_to_le32(sizeof(pmkid));
2593 pmkid.bssid_info_count = cpu_to_le32(0);
2594
2595 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2596 &pmkid, sizeof(pmkid));
2597 }
2598
2599 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2600 bool enabled, int timeout)
2601 {
2602 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2603 struct usbnet *usbdev = priv->usbdev;
2604 int power_mode;
2605 __le32 mode;
2606 int ret;
2607
2608 if (priv->device_type != RNDIS_BCM4320B)
2609 return -ENOTSUPP;
2610
2611 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2612 enabled ? "enabled" : "disabled",
2613 timeout);
2614
2615 if (enabled)
2616 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2617 else
2618 power_mode = NDIS_80211_POWER_MODE_CAM;
2619
2620 if (power_mode == priv->power_mode)
2621 return 0;
2622
2623 priv->power_mode = power_mode;
2624
2625 mode = cpu_to_le32(power_mode);
2626 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2627 &mode, sizeof(mode));
2628
2629 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2630 __func__, ret);
2631
2632 return ret;
2633 }
2634
2635 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2636 struct net_device *dev,
2637 s32 rssi_thold, u32 rssi_hyst)
2638 {
2639 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2640
2641 priv->cqm_rssi_thold = rssi_thold;
2642 priv->cqm_rssi_hyst = rssi_hyst;
2643 priv->last_cqm_event_rssi = 0;
2644
2645 return 0;
2646 }
2647
2648 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2649 struct ndis_80211_assoc_info *info)
2650 {
2651 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2652 struct ieee80211_channel *channel;
2653 struct ndis_80211_ssid ssid;
2654 struct cfg80211_bss *bss;
2655 s32 signal;
2656 u64 timestamp;
2657 u16 capability;
2658 u32 beacon_period = 0;
2659 __le32 rssi;
2660 u8 ie_buf[34];
2661 int len, ret, ie_len;
2662
2663 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2664 len = sizeof(rssi);
2665 rssi = 0;
2666 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2667 &rssi, &len);
2668 signal = level_to_qual(le32_to_cpu(rssi));
2669
2670 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2671 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2672 level_to_qual(le32_to_cpu(rssi)));
2673
2674 /* Get AP capabilities */
2675 if (info) {
2676 capability = le16_to_cpu(info->resp_ie.capa);
2677 } else {
2678 /* Set atleast ESS/IBSS capability */
2679 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2680 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2681 }
2682
2683 /* Get channel and beacon interval */
2684 channel = get_current_channel(usbdev, &beacon_period);
2685 if (!channel) {
2686 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2687 __func__);
2688 return;
2689 }
2690
2691 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2692 len = sizeof(ssid);
2693 memset(&ssid, 0, sizeof(ssid));
2694 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2695 &ssid, &len);
2696 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2697 "'%.32s'\n", __func__, ret,
2698 le32_to_cpu(ssid.length), ssid.essid);
2699
2700 if (le32_to_cpu(ssid.length) > 32)
2701 ssid.length = cpu_to_le32(32);
2702
2703 ie_buf[0] = WLAN_EID_SSID;
2704 ie_buf[1] = le32_to_cpu(ssid.length);
2705 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2706
2707 ie_len = le32_to_cpu(ssid.length) + 2;
2708
2709 /* no tsf */
2710 timestamp = 0;
2711
2712 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2713 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2714 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2715 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2716 ssid.essid, signal);
2717
2718 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2719 timestamp, capability, beacon_period, ie_buf, ie_len,
2720 signal, GFP_KERNEL);
2721 cfg80211_put_bss(bss);
2722 }
2723
2724 /*
2725 * workers, indication handlers, device poller
2726 */
2727 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2728 {
2729 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2730 struct ndis_80211_assoc_info *info = NULL;
2731 u8 bssid[ETH_ALEN];
2732 unsigned int resp_ie_len, req_ie_len;
2733 unsigned int offset;
2734 u8 *req_ie, *resp_ie;
2735 int ret;
2736 bool roamed = false;
2737 bool match_bss;
2738
2739 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2740 /* received media connect indication while connected, either
2741 * device reassociated with same AP or roamed to new. */
2742 roamed = true;
2743 }
2744
2745 req_ie_len = 0;
2746 resp_ie_len = 0;
2747 req_ie = NULL;
2748 resp_ie = NULL;
2749
2750 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2751 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2752 if (!info) {
2753 /* No memory? Try resume work later */
2754 set_bit(WORK_LINK_UP, &priv->work_pending);
2755 queue_work(priv->workqueue, &priv->work);
2756 return;
2757 }
2758
2759 /* Get association info IEs from device. */
2760 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2761 if (!ret) {
2762 req_ie_len = le32_to_cpu(info->req_ie_length);
2763 if (req_ie_len > CONTROL_BUFFER_SIZE)
2764 req_ie_len = CONTROL_BUFFER_SIZE;
2765 if (req_ie_len != 0) {
2766 offset = le32_to_cpu(info->offset_req_ies);
2767
2768 if (offset > CONTROL_BUFFER_SIZE)
2769 offset = CONTROL_BUFFER_SIZE;
2770
2771 req_ie = (u8 *)info + offset;
2772
2773 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2774 req_ie_len =
2775 CONTROL_BUFFER_SIZE - offset;
2776 }
2777
2778 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2779 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2780 resp_ie_len = CONTROL_BUFFER_SIZE;
2781 if (resp_ie_len != 0) {
2782 offset = le32_to_cpu(info->offset_resp_ies);
2783
2784 if (offset > CONTROL_BUFFER_SIZE)
2785 offset = CONTROL_BUFFER_SIZE;
2786
2787 resp_ie = (u8 *)info + offset;
2788
2789 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2790 resp_ie_len =
2791 CONTROL_BUFFER_SIZE - offset;
2792 }
2793 } else {
2794 /* Since rndis_wlan_craft_connected_bss() might use info
2795 * later and expects info to contain valid data if
2796 * non-null, free info and set NULL here.
2797 */
2798 kfree(info);
2799 info = NULL;
2800 }
2801 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2802 return;
2803
2804 ret = get_bssid(usbdev, bssid);
2805 if (ret < 0)
2806 memset(bssid, 0, sizeof(bssid));
2807
2808 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2809 bssid, roamed ? " roamed" : "");
2810
2811 /* Internal bss list in device should contain at least the currently
2812 * connected bss and we can get it to cfg80211 with
2813 * rndis_check_bssid_list().
2814 *
2815 * NDIS spec says: "If the device is associated, but the associated
2816 * BSSID is not in its BSSID scan list, then the driver must add an
2817 * entry for the BSSID at the end of the data that it returns in
2818 * response to query of RNDIS_OID_802_11_BSSID_LIST."
2819 *
2820 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2821 */
2822 match_bss = false;
2823 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2824
2825 if (!is_zero_ether_addr(bssid) && !match_bss) {
2826 /* Couldn't get bss from device, we need to manually craft bss
2827 * for cfg80211.
2828 */
2829 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2830 }
2831
2832 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2833 if (!roamed)
2834 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2835 req_ie_len, resp_ie,
2836 resp_ie_len, 0, GFP_KERNEL);
2837 else
2838 cfg80211_roamed(usbdev->net,
2839 get_current_channel(usbdev, NULL),
2840 bssid, req_ie, req_ie_len,
2841 resp_ie, resp_ie_len, GFP_KERNEL);
2842 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2843 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2844
2845 if (info != NULL)
2846 kfree(info);
2847
2848 priv->connected = true;
2849 memcpy(priv->bssid, bssid, ETH_ALEN);
2850
2851 usbnet_resume_rx(usbdev);
2852 netif_carrier_on(usbdev->net);
2853 }
2854
2855 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2856 {
2857 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2858
2859 if (priv->connected) {
2860 priv->connected = false;
2861 memset(priv->bssid, 0, ETH_ALEN);
2862
2863 deauthenticate(usbdev);
2864
2865 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2866 }
2867
2868 netif_carrier_off(usbdev->net);
2869 }
2870
2871 static void rndis_wlan_worker(struct work_struct *work)
2872 {
2873 struct rndis_wlan_private *priv =
2874 container_of(work, struct rndis_wlan_private, work);
2875 struct usbnet *usbdev = priv->usbdev;
2876
2877 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2878 rndis_wlan_do_link_up_work(usbdev);
2879
2880 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2881 rndis_wlan_do_link_down_work(usbdev);
2882
2883 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2884 set_multicast_list(usbdev);
2885 }
2886
2887 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2888 {
2889 struct usbnet *usbdev = netdev_priv(dev);
2890 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2891
2892 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2893 return;
2894
2895 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2896 queue_work(priv->workqueue, &priv->work);
2897 }
2898
2899 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2900 struct ndis_80211_status_indication *indication,
2901 int len)
2902 {
2903 u8 *buf;
2904 const char *type;
2905 int flags, buflen, key_id;
2906 bool pairwise_error, group_error;
2907 struct ndis_80211_auth_request *auth_req;
2908 enum nl80211_key_type key_type;
2909
2910 /* must have at least one array entry */
2911 if (len < offsetof(struct ndis_80211_status_indication, u) +
2912 sizeof(struct ndis_80211_auth_request)) {
2913 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2914 len);
2915 return;
2916 }
2917
2918 buf = (void *)&indication->u.auth_request[0];
2919 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2920
2921 while (buflen >= sizeof(*auth_req)) {
2922 auth_req = (void *)buf;
2923 type = "unknown";
2924 flags = le32_to_cpu(auth_req->flags);
2925 pairwise_error = false;
2926 group_error = false;
2927
2928 if (flags & 0x1)
2929 type = "reauth request";
2930 if (flags & 0x2)
2931 type = "key update request";
2932 if (flags & 0x6) {
2933 pairwise_error = true;
2934 type = "pairwise_error";
2935 }
2936 if (flags & 0xe) {
2937 group_error = true;
2938 type = "group_error";
2939 }
2940
2941 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2942 type, le32_to_cpu(auth_req->flags));
2943
2944 if (pairwise_error) {
2945 key_type = NL80211_KEYTYPE_PAIRWISE;
2946 key_id = -1;
2947
2948 cfg80211_michael_mic_failure(usbdev->net,
2949 auth_req->bssid,
2950 key_type, key_id, NULL,
2951 GFP_KERNEL);
2952 }
2953
2954 if (group_error) {
2955 key_type = NL80211_KEYTYPE_GROUP;
2956 key_id = -1;
2957
2958 cfg80211_michael_mic_failure(usbdev->net,
2959 auth_req->bssid,
2960 key_type, key_id, NULL,
2961 GFP_KERNEL);
2962 }
2963
2964 buflen -= le32_to_cpu(auth_req->length);
2965 buf += le32_to_cpu(auth_req->length);
2966 }
2967 }
2968
2969 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2970 struct ndis_80211_status_indication *indication,
2971 int len)
2972 {
2973 struct ndis_80211_pmkid_cand_list *cand_list;
2974 int list_len, expected_len, i;
2975
2976 if (len < offsetof(struct ndis_80211_status_indication, u) +
2977 sizeof(struct ndis_80211_pmkid_cand_list)) {
2978 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2979 len);
2980 return;
2981 }
2982
2983 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2984 sizeof(struct ndis_80211_pmkid_candidate);
2985 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2986 offsetof(struct ndis_80211_status_indication, u);
2987
2988 if (len < expected_len) {
2989 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2990 len, expected_len);
2991 return;
2992 }
2993
2994 cand_list = &indication->u.cand_list;
2995
2996 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2997 le32_to_cpu(cand_list->version),
2998 le32_to_cpu(cand_list->num_candidates));
2999
3000 if (le32_to_cpu(cand_list->version) != 1)
3001 return;
3002
3003 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3004 struct ndis_80211_pmkid_candidate *cand =
3005 &cand_list->candidate_list[i];
3006 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3007
3008 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3009 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3010
3011 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3012 preauth, GFP_ATOMIC);
3013 }
3014 }
3015
3016 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3017 struct rndis_indicate *msg, int buflen)
3018 {
3019 struct ndis_80211_status_indication *indication;
3020 unsigned int len, offset;
3021
3022 offset = offsetof(struct rndis_indicate, status) +
3023 le32_to_cpu(msg->offset);
3024 len = le32_to_cpu(msg->length);
3025
3026 if (len < 8) {
3027 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3028 len);
3029 return;
3030 }
3031
3032 if (len > buflen || offset > buflen || offset + len > buflen) {
3033 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3034 offset + len, buflen);
3035 return;
3036 }
3037
3038 indication = (void *)((u8 *)msg + offset);
3039
3040 switch (le32_to_cpu(indication->status_type)) {
3041 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3042 netdev_info(usbdev->net, "radio state indication: %i\n",
3043 le32_to_cpu(indication->u.radio_status));
3044 return;
3045
3046 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3047 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3048 le32_to_cpu(indication->u.media_stream_mode));
3049 return;
3050
3051 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3052 rndis_wlan_auth_indication(usbdev, indication, len);
3053 return;
3054
3055 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3056 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3057 return;
3058
3059 default:
3060 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3061 le32_to_cpu(indication->status_type));
3062 }
3063 }
3064
3065 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3066 {
3067 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3068 struct rndis_indicate *msg = ind;
3069
3070 switch (le32_to_cpu(msg->status)) {
3071 case RNDIS_STATUS_MEDIA_CONNECT:
3072 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3073 /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra
3074 * "media connect" indications which confuses driver
3075 * and userspace to think that device is
3076 * roaming/reassociating when it isn't.
3077 */
3078 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3079 return;
3080 }
3081
3082 usbnet_pause_rx(usbdev);
3083
3084 netdev_info(usbdev->net, "media connect\n");
3085
3086 /* queue work to avoid recursive calls into rndis_command */
3087 set_bit(WORK_LINK_UP, &priv->work_pending);
3088 queue_work(priv->workqueue, &priv->work);
3089 break;
3090
3091 case RNDIS_STATUS_MEDIA_DISCONNECT:
3092 netdev_info(usbdev->net, "media disconnect\n");
3093
3094 /* queue work to avoid recursive calls into rndis_command */
3095 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3096 queue_work(priv->workqueue, &priv->work);
3097 break;
3098
3099 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3100 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3101 break;
3102
3103 default:
3104 netdev_info(usbdev->net, "indication: 0x%08x\n",
3105 le32_to_cpu(msg->status));
3106 break;
3107 }
3108 }
3109
3110 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3111 {
3112 struct {
3113 __le32 num_items;
3114 __le32 items[8];
3115 } networks_supported;
3116 struct ndis_80211_capability *caps;
3117 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3118 int len, retval, i, n;
3119 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3120
3121 /* determine supported modes */
3122 len = sizeof(networks_supported);
3123 retval = rndis_query_oid(usbdev,
3124 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3125 &networks_supported, &len);
3126 if (retval >= 0) {
3127 n = le32_to_cpu(networks_supported.num_items);
3128 if (n > 8)
3129 n = 8;
3130 for (i = 0; i < n; i++) {
3131 switch (le32_to_cpu(networks_supported.items[i])) {
3132 case NDIS_80211_TYPE_FREQ_HOP:
3133 case NDIS_80211_TYPE_DIRECT_SEQ:
3134 priv->caps |= CAP_MODE_80211B;
3135 break;
3136 case NDIS_80211_TYPE_OFDM_A:
3137 priv->caps |= CAP_MODE_80211A;
3138 break;
3139 case NDIS_80211_TYPE_OFDM_G:
3140 priv->caps |= CAP_MODE_80211G;
3141 break;
3142 }
3143 }
3144 }
3145
3146 /* get device 802.11 capabilities, number of PMKIDs */
3147 caps = (struct ndis_80211_capability *)caps_buf;
3148 len = sizeof(caps_buf);
3149 retval = rndis_query_oid(usbdev,
3150 RNDIS_OID_802_11_CAPABILITY,
3151 caps, &len);
3152 if (retval >= 0) {
3153 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3154 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3155 le32_to_cpu(caps->length),
3156 le32_to_cpu(caps->version),
3157 le32_to_cpu(caps->num_pmkids),
3158 le32_to_cpu(caps->num_auth_encr_pair));
3159 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3160 } else
3161 wiphy->max_num_pmkids = 0;
3162
3163 return retval;
3164 }
3165
3166 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3167 {
3168 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3169 enum nl80211_cqm_rssi_threshold_event event;
3170 int thold, hyst, last_event;
3171
3172 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3173 return;
3174 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3175 return;
3176
3177 last_event = priv->last_cqm_event_rssi;
3178 thold = priv->cqm_rssi_thold;
3179 hyst = priv->cqm_rssi_hyst;
3180
3181 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3182 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3183 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3184 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3185 else
3186 return;
3187
3188 priv->last_cqm_event_rssi = rssi;
3189 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3190 }
3191
3192 #define DEVICE_POLLER_JIFFIES (HZ)
3193 static void rndis_device_poller(struct work_struct *work)
3194 {
3195 struct rndis_wlan_private *priv =
3196 container_of(work, struct rndis_wlan_private,
3197 dev_poller_work.work);
3198 struct usbnet *usbdev = priv->usbdev;
3199 __le32 rssi, tmp;
3200 int len, ret, j;
3201 int update_jiffies = DEVICE_POLLER_JIFFIES;
3202 void *buf;
3203
3204 /* Only check/do workaround when connected. Calling is_associated()
3205 * also polls device with rndis_command() and catches for media link
3206 * indications.
3207 */
3208 if (!is_associated(usbdev)) {
3209 /* Workaround bad scanning in BCM4320a devices with active
3210 * background scanning when not associated.
3211 */
3212 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3213 !priv->scan_request) {
3214 /* Get previous scan results */
3215 rndis_check_bssid_list(usbdev, NULL, NULL);
3216
3217 /* Initiate new scan */
3218 rndis_start_bssid_list_scan(usbdev);
3219 }
3220
3221 goto end;
3222 }
3223
3224 len = sizeof(rssi);
3225 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3226 &rssi, &len);
3227 if (ret == 0) {
3228 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3229 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3230 }
3231
3232 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3233 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3234
3235 /* Workaround transfer stalls on poor quality links.
3236 * TODO: find right way to fix these stalls (as stalls do not happen
3237 * with ndiswrapper/windows driver). */
3238 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3239 /* Decrease stats worker interval to catch stalls.
3240 * faster. Faster than 400-500ms causes packet loss,
3241 * Slower doesn't catch stalls fast enough.
3242 */
3243 j = msecs_to_jiffies(priv->param_workaround_interval);
3244 if (j > DEVICE_POLLER_JIFFIES)
3245 j = DEVICE_POLLER_JIFFIES;
3246 else if (j <= 0)
3247 j = 1;
3248 update_jiffies = j;
3249
3250 /* Send scan OID. Use of both OIDs is required to get device
3251 * working.
3252 */
3253 tmp = cpu_to_le32(1);
3254 rndis_set_oid(usbdev,
3255 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3256 &tmp, sizeof(tmp));
3257
3258 len = CONTROL_BUFFER_SIZE;
3259 buf = kmalloc(len, GFP_KERNEL);
3260 if (!buf)
3261 goto end;
3262
3263 rndis_query_oid(usbdev,
3264 RNDIS_OID_802_11_BSSID_LIST,
3265 buf, &len);
3266 kfree(buf);
3267 }
3268
3269 end:
3270 if (update_jiffies >= HZ)
3271 update_jiffies = round_jiffies_relative(update_jiffies);
3272 else {
3273 j = round_jiffies_relative(update_jiffies);
3274 if (abs(j - update_jiffies) <= 10)
3275 update_jiffies = j;
3276 }
3277
3278 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3279 update_jiffies);
3280 }
3281
3282 /*
3283 * driver/device initialization
3284 */
3285 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3286 {
3287 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3288
3289 priv->device_type = device_type;
3290
3291 priv->param_country[0] = modparam_country[0];
3292 priv->param_country[1] = modparam_country[1];
3293 priv->param_country[2] = 0;
3294 priv->param_frameburst = modparam_frameburst;
3295 priv->param_afterburner = modparam_afterburner;
3296 priv->param_power_save = modparam_power_save;
3297 priv->param_power_output = modparam_power_output;
3298 priv->param_roamtrigger = modparam_roamtrigger;
3299 priv->param_roamdelta = modparam_roamdelta;
3300
3301 priv->param_country[0] = toupper(priv->param_country[0]);
3302 priv->param_country[1] = toupper(priv->param_country[1]);
3303 /* doesn't support EU as country code, use FI instead */
3304 if (!strcmp(priv->param_country, "EU"))
3305 strcpy(priv->param_country, "FI");
3306
3307 if (priv->param_power_save < 0)
3308 priv->param_power_save = 0;
3309 else if (priv->param_power_save > 2)
3310 priv->param_power_save = 2;
3311
3312 if (priv->param_power_output < 0)
3313 priv->param_power_output = 0;
3314 else if (priv->param_power_output > 3)
3315 priv->param_power_output = 3;
3316
3317 if (priv->param_roamtrigger < -80)
3318 priv->param_roamtrigger = -80;
3319 else if (priv->param_roamtrigger > -60)
3320 priv->param_roamtrigger = -60;
3321
3322 if (priv->param_roamdelta < 0)
3323 priv->param_roamdelta = 0;
3324 else if (priv->param_roamdelta > 2)
3325 priv->param_roamdelta = 2;
3326
3327 if (modparam_workaround_interval < 0)
3328 priv->param_workaround_interval = 500;
3329 else
3330 priv->param_workaround_interval = modparam_workaround_interval;
3331 }
3332
3333 static int unknown_early_init(struct usbnet *usbdev)
3334 {
3335 /* copy module parameters for unknown so that iwconfig reports txpower
3336 * and workaround parameter is copied to private structure correctly.
3337 */
3338 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3339
3340 /* This is unknown device, so do not try set configuration parameters.
3341 */
3342
3343 return 0;
3344 }
3345
3346 static int bcm4320a_early_init(struct usbnet *usbdev)
3347 {
3348 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3349 * and workaround parameter is copied to private structure correctly.
3350 */
3351 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3352
3353 /* bcm4320a doesn't handle configuration parameters well. Try
3354 * set any and you get partially zeroed mac and broken device.
3355 */
3356
3357 return 0;
3358 }
3359
3360 static int bcm4320b_early_init(struct usbnet *usbdev)
3361 {
3362 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3363 char buf[8];
3364
3365 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3366
3367 /* Early initialization settings, setting these won't have effect
3368 * if called after generic_rndis_bind().
3369 */
3370
3371 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3372 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3373 priv->param_frameburst ? "1" : "0");
3374 rndis_set_config_parameter_str(usbdev, "Afterburner",
3375 priv->param_afterburner ? "1" : "0");
3376 sprintf(buf, "%d", priv->param_power_save);
3377 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3378 sprintf(buf, "%d", priv->param_power_output);
3379 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3380 sprintf(buf, "%d", priv->param_roamtrigger);
3381 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3382 sprintf(buf, "%d", priv->param_roamdelta);
3383 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3384
3385 return 0;
3386 }
3387
3388 /* same as rndis_netdev_ops but with local multicast handler */
3389 static const struct net_device_ops rndis_wlan_netdev_ops = {
3390 .ndo_open = usbnet_open,
3391 .ndo_stop = usbnet_stop,
3392 .ndo_start_xmit = usbnet_start_xmit,
3393 .ndo_tx_timeout = usbnet_tx_timeout,
3394 .ndo_set_mac_address = eth_mac_addr,
3395 .ndo_validate_addr = eth_validate_addr,
3396 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3397 };
3398
3399 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3400 {
3401 struct wiphy *wiphy;
3402 struct rndis_wlan_private *priv;
3403 int retval, len;
3404 __le32 tmp;
3405
3406 /* allocate wiphy and rndis private data
3407 * NOTE: We only support a single virtual interface, so wiphy
3408 * and wireless_dev are somewhat synonymous for this device.
3409 */
3410 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3411 if (!wiphy)
3412 return -ENOMEM;
3413
3414 priv = wiphy_priv(wiphy);
3415 usbdev->net->ieee80211_ptr = &priv->wdev;
3416 priv->wdev.wiphy = wiphy;
3417 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3418
3419 /* These have to be initialized before calling generic_rndis_bind().
3420 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3421 */
3422 usbdev->driver_priv = priv;
3423 priv->usbdev = usbdev;
3424
3425 mutex_init(&priv->command_lock);
3426
3427 /* because rndis_command() sleeps we need to use workqueue */
3428 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3429 INIT_WORK(&priv->work, rndis_wlan_worker);
3430 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3431 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3432
3433 /* try bind rndis_host */
3434 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3435 if (retval < 0)
3436 goto fail;
3437
3438 /* generic_rndis_bind set packet filter to multicast_all+
3439 * promisc mode which doesn't work well for our devices (device
3440 * picks up rssi to closest station instead of to access point).
3441 *
3442 * rndis_host wants to avoid all OID as much as possible
3443 * so do promisc/multicast handling in rndis_wlan.
3444 */
3445 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3446
3447 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3448 retval = rndis_set_oid(usbdev,
3449 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3450 &tmp, sizeof(tmp));
3451
3452 len = sizeof(tmp);
3453 retval = rndis_query_oid(usbdev,
3454 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3455 &tmp, &len);
3456 priv->multicast_size = le32_to_cpu(tmp);
3457 if (retval < 0 || priv->multicast_size < 0)
3458 priv->multicast_size = 0;
3459 if (priv->multicast_size > 0)
3460 usbdev->net->flags |= IFF_MULTICAST;
3461 else
3462 usbdev->net->flags &= ~IFF_MULTICAST;
3463
3464 /* fill-out wiphy structure and register w/ cfg80211 */
3465 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3466 wiphy->privid = rndis_wiphy_privid;
3467 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3468 | BIT(NL80211_IFTYPE_ADHOC);
3469 wiphy->max_scan_ssids = 1;
3470
3471 /* TODO: fill-out band/encr information based on priv->caps */
3472 rndis_wlan_get_caps(usbdev, wiphy);
3473
3474 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3475 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3476 priv->band.channels = priv->channels;
3477 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3478 priv->band.bitrates = priv->rates;
3479 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3480 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3481 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3482
3483 memcpy(priv->cipher_suites, rndis_cipher_suites,
3484 sizeof(rndis_cipher_suites));
3485 wiphy->cipher_suites = priv->cipher_suites;
3486 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3487
3488 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3489
3490 if (wiphy_register(wiphy)) {
3491 retval = -ENODEV;
3492 goto fail;
3493 }
3494
3495 set_default_iw_params(usbdev);
3496
3497 priv->power_mode = -1;
3498
3499 /* set default rts/frag */
3500 rndis_set_wiphy_params(wiphy,
3501 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3502
3503 /* turn radio off on init */
3504 priv->radio_on = false;
3505 disassociate(usbdev, false);
3506 netif_carrier_off(usbdev->net);
3507
3508 return 0;
3509
3510 fail:
3511 cancel_delayed_work_sync(&priv->dev_poller_work);
3512 cancel_delayed_work_sync(&priv->scan_work);
3513 cancel_work_sync(&priv->work);
3514 flush_workqueue(priv->workqueue);
3515 destroy_workqueue(priv->workqueue);
3516
3517 wiphy_free(wiphy);
3518 return retval;
3519 }
3520
3521 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3522 {
3523 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3524
3525 /* turn radio off */
3526 disassociate(usbdev, false);
3527
3528 cancel_delayed_work_sync(&priv->dev_poller_work);
3529 cancel_delayed_work_sync(&priv->scan_work);
3530 cancel_work_sync(&priv->work);
3531 flush_workqueue(priv->workqueue);
3532 destroy_workqueue(priv->workqueue);
3533
3534 rndis_unbind(usbdev, intf);
3535
3536 wiphy_unregister(priv->wdev.wiphy);
3537 wiphy_free(priv->wdev.wiphy);
3538 }
3539
3540 static int rndis_wlan_reset(struct usbnet *usbdev)
3541 {
3542 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3543 int retval;
3544
3545 netdev_dbg(usbdev->net, "%s()\n", __func__);
3546
3547 retval = rndis_reset(usbdev);
3548 if (retval)
3549 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3550
3551 /* rndis_reset cleared multicast list, so restore here.
3552 (set_multicast_list() also turns on current packet filter) */
3553 set_multicast_list(usbdev);
3554
3555 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3556 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3557
3558 return deauthenticate(usbdev);
3559 }
3560
3561 static int rndis_wlan_stop(struct usbnet *usbdev)
3562 {
3563 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3564 int retval;
3565 __le32 filter;
3566
3567 netdev_dbg(usbdev->net, "%s()\n", __func__);
3568
3569 retval = disassociate(usbdev, false);
3570
3571 priv->work_pending = 0;
3572 cancel_delayed_work_sync(&priv->dev_poller_work);
3573 cancel_delayed_work_sync(&priv->scan_work);
3574 cancel_work_sync(&priv->work);
3575 flush_workqueue(priv->workqueue);
3576
3577 if (priv->scan_request) {
3578 cfg80211_scan_done(priv->scan_request, true);
3579 priv->scan_request = NULL;
3580 }
3581
3582 /* Set current packet filter zero to block receiving data packets from
3583 device. */
3584 filter = 0;
3585 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3586 sizeof(filter));
3587
3588 return retval;
3589 }
3590
3591 static const struct driver_info bcm4320b_info = {
3592 .description = "Wireless RNDIS device, BCM4320b based",
3593 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3594 FLAG_AVOID_UNLINK_URBS,
3595 .bind = rndis_wlan_bind,
3596 .unbind = rndis_wlan_unbind,
3597 .status = rndis_status,
3598 .rx_fixup = rndis_rx_fixup,
3599 .tx_fixup = rndis_tx_fixup,
3600 .reset = rndis_wlan_reset,
3601 .stop = rndis_wlan_stop,
3602 .early_init = bcm4320b_early_init,
3603 .indication = rndis_wlan_indication,
3604 };
3605
3606 static const struct driver_info bcm4320a_info = {
3607 .description = "Wireless RNDIS device, BCM4320a based",
3608 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3609 FLAG_AVOID_UNLINK_URBS,
3610 .bind = rndis_wlan_bind,
3611 .unbind = rndis_wlan_unbind,
3612 .status = rndis_status,
3613 .rx_fixup = rndis_rx_fixup,
3614 .tx_fixup = rndis_tx_fixup,
3615 .reset = rndis_wlan_reset,
3616 .stop = rndis_wlan_stop,
3617 .early_init = bcm4320a_early_init,
3618 .indication = rndis_wlan_indication,
3619 };
3620
3621 static const struct driver_info rndis_wlan_info = {
3622 .description = "Wireless RNDIS device",
3623 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3624 FLAG_AVOID_UNLINK_URBS,
3625 .bind = rndis_wlan_bind,
3626 .unbind = rndis_wlan_unbind,
3627 .status = rndis_status,
3628 .rx_fixup = rndis_rx_fixup,
3629 .tx_fixup = rndis_tx_fixup,
3630 .reset = rndis_wlan_reset,
3631 .stop = rndis_wlan_stop,
3632 .early_init = unknown_early_init,
3633 .indication = rndis_wlan_indication,
3634 };
3635
3636 /*-------------------------------------------------------------------------*/
3637
3638 static const struct usb_device_id products [] = {
3639 #define RNDIS_MASTER_INTERFACE \
3640 .bInterfaceClass = USB_CLASS_COMM, \
3641 .bInterfaceSubClass = 2 /* ACM */, \
3642 .bInterfaceProtocol = 0x0ff
3643
3644 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3645 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3646 */
3647 {
3648 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3649 | USB_DEVICE_ID_MATCH_DEVICE,
3650 .idVendor = 0x0411,
3651 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3652 RNDIS_MASTER_INTERFACE,
3653 .driver_info = (unsigned long) &bcm4320b_info,
3654 }, {
3655 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3656 | USB_DEVICE_ID_MATCH_DEVICE,
3657 .idVendor = 0x0baf,
3658 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3659 RNDIS_MASTER_INTERFACE,
3660 .driver_info = (unsigned long) &bcm4320b_info,
3661 }, {
3662 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3663 | USB_DEVICE_ID_MATCH_DEVICE,
3664 .idVendor = 0x050d,
3665 .idProduct = 0x011b, /* Belkin F5D7051 */
3666 RNDIS_MASTER_INTERFACE,
3667 .driver_info = (unsigned long) &bcm4320b_info,
3668 }, {
3669 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3670 | USB_DEVICE_ID_MATCH_DEVICE,
3671 .idVendor = 0x1799, /* Belkin has two vendor ids */
3672 .idProduct = 0x011b, /* Belkin F5D7051 */
3673 RNDIS_MASTER_INTERFACE,
3674 .driver_info = (unsigned long) &bcm4320b_info,
3675 }, {
3676 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3677 | USB_DEVICE_ID_MATCH_DEVICE,
3678 .idVendor = 0x13b1,
3679 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3680 RNDIS_MASTER_INTERFACE,
3681 .driver_info = (unsigned long) &bcm4320b_info,
3682 }, {
3683 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3684 | USB_DEVICE_ID_MATCH_DEVICE,
3685 .idVendor = 0x13b1,
3686 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3687 RNDIS_MASTER_INTERFACE,
3688 .driver_info = (unsigned long) &bcm4320b_info,
3689 }, {
3690 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3691 | USB_DEVICE_ID_MATCH_DEVICE,
3692 .idVendor = 0x0b05,
3693 .idProduct = 0x1717, /* Asus WL169gE */
3694 RNDIS_MASTER_INTERFACE,
3695 .driver_info = (unsigned long) &bcm4320b_info,
3696 }, {
3697 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3698 | USB_DEVICE_ID_MATCH_DEVICE,
3699 .idVendor = 0x0a5c,
3700 .idProduct = 0xd11b, /* Eminent EM4045 */
3701 RNDIS_MASTER_INTERFACE,
3702 .driver_info = (unsigned long) &bcm4320b_info,
3703 }, {
3704 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3705 | USB_DEVICE_ID_MATCH_DEVICE,
3706 .idVendor = 0x1690,
3707 .idProduct = 0x0715, /* BT Voyager 1055 */
3708 RNDIS_MASTER_INTERFACE,
3709 .driver_info = (unsigned long) &bcm4320b_info,
3710 },
3711 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3712 * parameters available, hardware probably contain older firmware version with
3713 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3714 */
3715 {
3716 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3717 | USB_DEVICE_ID_MATCH_DEVICE,
3718 .idVendor = 0x13b1,
3719 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3720 RNDIS_MASTER_INTERFACE,
3721 .driver_info = (unsigned long) &bcm4320a_info,
3722 }, {
3723 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3724 | USB_DEVICE_ID_MATCH_DEVICE,
3725 .idVendor = 0x0baf,
3726 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3727 RNDIS_MASTER_INTERFACE,
3728 .driver_info = (unsigned long) &bcm4320a_info,
3729 }, {
3730 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3731 | USB_DEVICE_ID_MATCH_DEVICE,
3732 .idVendor = 0x0411,
3733 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3734 RNDIS_MASTER_INTERFACE,
3735 .driver_info = (unsigned long) &bcm4320a_info,
3736 },
3737 /* Generic Wireless RNDIS devices that we don't have exact
3738 * idVendor/idProduct/chip yet.
3739 */
3740 {
3741 /* RNDIS is MSFT's un-official variant of CDC ACM */
3742 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3743 .driver_info = (unsigned long) &rndis_wlan_info,
3744 }, {
3745 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3746 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3747 .driver_info = (unsigned long) &rndis_wlan_info,
3748 },
3749 { }, // END
3750 };
3751 MODULE_DEVICE_TABLE(usb, products);
3752
3753 static struct usb_driver rndis_wlan_driver = {
3754 .name = "rndis_wlan",
3755 .id_table = products,
3756 .probe = usbnet_probe,
3757 .disconnect = usbnet_disconnect,
3758 .suspend = usbnet_suspend,
3759 .resume = usbnet_resume,
3760 .disable_hub_initiated_lpm = 1,
3761 };
3762
3763 module_usb_driver(rndis_wlan_driver);
3764
3765 MODULE_AUTHOR("Bjorge Dijkstra");
3766 MODULE_AUTHOR("Jussi Kivilinna");
3767 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3768 MODULE_LICENSE("GPL");
3769
Linux kernel - Deliverables
This page took 0.10724 seconds and 6 git commands to generate.