projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
rndis_wlan: cleanup: change oid from __le32 to u32 in various places
[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, struct net_device *dev,
488 struct cfg80211_scan_request *request);
489
490 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
491
492 static int rndis_set_tx_power(struct wiphy *wiphy,
493 enum nl80211_tx_power_setting type,
494 int mbm);
495 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
496
497 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
498 struct cfg80211_connect_params *sme);
499
500 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
501 u16 reason_code);
502
503 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
504 struct cfg80211_ibss_params *params);
505
506 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
507
508 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
509 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
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 .set_channel = rndis_set_channel,
553 .add_key = rndis_add_key,
554 .del_key = rndis_del_key,
555 .set_default_key = rndis_set_default_key,
556 .get_station = rndis_get_station,
557 .dump_station = rndis_dump_station,
558 .set_pmksa = rndis_set_pmksa,
559 .del_pmksa = rndis_del_pmksa,
560 .flush_pmksa = rndis_flush_pmksa,
561 .set_power_mgmt = rndis_set_power_mgmt,
562 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
563 };
564
565 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
566
567
568 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
569 {
570 return (struct rndis_wlan_private *)dev->driver_priv;
571 }
572
573 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
574 {
575 switch (priv->param_power_output) {
576 default:
577 case 3:
578 return BCM4320_DEFAULT_TXPOWER_DBM_100;
579 case 2:
580 return BCM4320_DEFAULT_TXPOWER_DBM_75;
581 case 1:
582 return BCM4320_DEFAULT_TXPOWER_DBM_50;
583 case 0:
584 return BCM4320_DEFAULT_TXPOWER_DBM_25;
585 }
586 }
587
588 static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
589 {
590 int cipher = priv->encr_keys[idx].cipher;
591
592 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
593 cipher == WLAN_CIPHER_SUITE_TKIP);
594 }
595
596 static int rndis_cipher_to_alg(u32 cipher)
597 {
598 switch (cipher) {
599 default:
600 return RNDIS_WLAN_ALG_NONE;
601 case WLAN_CIPHER_SUITE_WEP40:
602 case WLAN_CIPHER_SUITE_WEP104:
603 return RNDIS_WLAN_ALG_WEP;
604 case WLAN_CIPHER_SUITE_TKIP:
605 return RNDIS_WLAN_ALG_TKIP;
606 case WLAN_CIPHER_SUITE_CCMP:
607 return RNDIS_WLAN_ALG_CCMP;
608 }
609 }
610
611 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
612 {
613 switch (akm_suite) {
614 default:
615 return RNDIS_WLAN_KEY_MGMT_NONE;
616 case WLAN_AKM_SUITE_8021X:
617 return RNDIS_WLAN_KEY_MGMT_802_1X;
618 case WLAN_AKM_SUITE_PSK:
619 return RNDIS_WLAN_KEY_MGMT_PSK;
620 }
621 }
622
623 #ifdef DEBUG
624 static const char *oid_to_string(u32 oid)
625 {
626 switch (oid) {
627 #define OID_STR(oid) case oid: return(#oid)
628 /* from rndis_host.h */
629 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
630 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
631 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
632 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
633
634 /* from rndis_wlan.c */
635 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
636 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
637
638 OID_STR(RNDIS_OID_GEN_XMIT_OK);
639 OID_STR(RNDIS_OID_GEN_RCV_OK);
640 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
641 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
642 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
643
644 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
645 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
646 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
647
648 OID_STR(RNDIS_OID_802_11_BSSID);
649 OID_STR(RNDIS_OID_802_11_SSID);
650 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
651 OID_STR(RNDIS_OID_802_11_ADD_WEP);
652 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
653 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
654 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
655 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
656 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
657 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
658 OID_STR(RNDIS_OID_802_11_ADD_KEY);
659 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
660 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
661 OID_STR(RNDIS_OID_802_11_CAPABILITY);
662 OID_STR(RNDIS_OID_802_11_PMKID);
663 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
664 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
665 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
666 OID_STR(RNDIS_OID_802_11_RSSI);
667 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
668 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
669 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
670 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
671 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
672 OID_STR(RNDIS_OID_802_11_POWER_MODE);
673 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
674 #undef OID_STR
675 }
676
677 return "?";
678 }
679 #else
680 static const char *oid_to_string(u32 oid)
681 {
682 return "?";
683 }
684 #endif
685
686 /* translate error code */
687 static int rndis_error_status(__le32 rndis_status)
688 {
689 int ret = -EINVAL;
690 switch (le32_to_cpu(rndis_status)) {
691 case RNDIS_STATUS_SUCCESS:
692 ret = 0;
693 break;
694 case RNDIS_STATUS_FAILURE:
695 case RNDIS_STATUS_INVALID_DATA:
696 ret = -EINVAL;
697 break;
698 case RNDIS_STATUS_NOT_SUPPORTED:
699 ret = -EOPNOTSUPP;
700 break;
701 case RNDIS_STATUS_ADAPTER_NOT_READY:
702 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
703 ret = -EBUSY;
704 break;
705 }
706 return ret;
707 }
708
709 static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
710 {
711 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
712 union {
713 void *buf;
714 struct rndis_msg_hdr *header;
715 struct rndis_query *get;
716 struct rndis_query_c *get_c;
717 } u;
718 int ret, buflen;
719 int resplen, respoffs, copylen;
720
721 buflen = *len + sizeof(*u.get);
722 if (buflen < CONTROL_BUFFER_SIZE)
723 buflen = CONTROL_BUFFER_SIZE;
724
725 if (buflen > COMMAND_BUFFER_SIZE) {
726 u.buf = kmalloc(buflen, GFP_KERNEL);
727 if (!u.buf)
728 return -ENOMEM;
729 } else {
730 u.buf = priv->command_buffer;
731 }
732
733 mutex_lock(&priv->command_lock);
734
735 memset(u.get, 0, sizeof *u.get);
736 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
737 u.get->msg_len = cpu_to_le32(sizeof *u.get);
738 u.get->oid = cpu_to_le32(oid);
739
740 priv->current_command_oid = oid;
741 ret = rndis_command(dev, u.header, buflen);
742 priv->current_command_oid = 0;
743 if (ret < 0)
744 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
745 __func__, oid_to_string(oid), ret,
746 le32_to_cpu(u.get_c->status));
747
748 if (ret == 0) {
749 resplen = le32_to_cpu(u.get_c->len);
750 respoffs = le32_to_cpu(u.get_c->offset) + 8;
751
752 if (respoffs > buflen) {
753 /* Device returned data offset outside buffer, error. */
754 netdev_dbg(dev->net, "%s(%s): received invalid "
755 "data offset: %d > %d\n", __func__,
756 oid_to_string(oid), respoffs, buflen);
757
758 ret = -EINVAL;
759 goto exit_unlock;
760 }
761
762 if ((resplen + respoffs) > buflen) {
763 /* Device would have returned more data if buffer would
764 * have been big enough. Copy just the bits that we got.
765 */
766 copylen = buflen - respoffs;
767 } else {
768 copylen = resplen;
769 }
770
771 if (copylen > *len)
772 copylen = *len;
773
774 memcpy(data, u.buf + respoffs, copylen);
775
776 *len = resplen;
777
778 ret = rndis_error_status(u.get_c->status);
779 if (ret < 0)
780 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
781 __func__, oid_to_string(oid),
782 le32_to_cpu(u.get_c->status), ret);
783 }
784
785 exit_unlock:
786 mutex_unlock(&priv->command_lock);
787
788 if (u.buf != priv->command_buffer)
789 kfree(u.buf);
790 return ret;
791 }
792
793 static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
794 int len)
795 {
796 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
797 union {
798 void *buf;
799 struct rndis_msg_hdr *header;
800 struct rndis_set *set;
801 struct rndis_set_c *set_c;
802 } u;
803 int ret, buflen;
804
805 buflen = len + sizeof(*u.set);
806 if (buflen < CONTROL_BUFFER_SIZE)
807 buflen = CONTROL_BUFFER_SIZE;
808
809 if (buflen > COMMAND_BUFFER_SIZE) {
810 u.buf = kmalloc(buflen, GFP_KERNEL);
811 if (!u.buf)
812 return -ENOMEM;
813 } else {
814 u.buf = priv->command_buffer;
815 }
816
817 mutex_lock(&priv->command_lock);
818
819 memset(u.set, 0, sizeof *u.set);
820 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
821 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
822 u.set->oid = cpu_to_le32(oid);
823 u.set->len = cpu_to_le32(len);
824 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
825 u.set->handle = cpu_to_le32(0);
826 memcpy(u.buf + sizeof(*u.set), data, len);
827
828 priv->current_command_oid = oid;
829 ret = rndis_command(dev, u.header, buflen);
830 priv->current_command_oid = 0;
831 if (ret < 0)
832 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
833 __func__, oid_to_string(oid), ret,
834 le32_to_cpu(u.set_c->status));
835
836 if (ret == 0) {
837 ret = rndis_error_status(u.set_c->status);
838
839 if (ret < 0)
840 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
841 __func__, oid_to_string(oid),
842 le32_to_cpu(u.set_c->status), ret);
843 }
844
845 mutex_unlock(&priv->command_lock);
846
847 if (u.buf != priv->command_buffer)
848 kfree(u.buf);
849 return ret;
850 }
851
852 static int rndis_reset(struct usbnet *usbdev)
853 {
854 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
855 struct rndis_reset *reset;
856 int ret;
857
858 mutex_lock(&priv->command_lock);
859
860 reset = (void *)priv->command_buffer;
861 memset(reset, 0, sizeof(*reset));
862 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
863 reset->msg_len = cpu_to_le32(sizeof(*reset));
864 priv->current_command_oid = 0;
865 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
866
867 mutex_unlock(&priv->command_lock);
868
869 if (ret < 0)
870 return ret;
871 return 0;
872 }
873
874 /*
875 * Specs say that we can only set config parameters only soon after device
876 * initialization.
877 * value_type: 0 = u32, 2 = unicode string
878 */
879 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
880 int value_type, void *value)
881 {
882 struct ndis_config_param *infobuf;
883 int value_len, info_len, param_len, ret, i;
884 __le16 *unibuf;
885 __le32 *dst_value;
886
887 if (value_type == 0)
888 value_len = sizeof(__le32);
889 else if (value_type == 2)
890 value_len = strlen(value) * sizeof(__le16);
891 else
892 return -EINVAL;
893
894 param_len = strlen(param) * sizeof(__le16);
895 info_len = sizeof(*infobuf) + param_len + value_len;
896
897 #ifdef DEBUG
898 info_len += 12;
899 #endif
900 infobuf = kmalloc(info_len, GFP_KERNEL);
901 if (!infobuf)
902 return -ENOMEM;
903
904 #ifdef DEBUG
905 info_len -= 12;
906 /* extra 12 bytes are for padding (debug output) */
907 memset(infobuf, 0xCC, info_len + 12);
908 #endif
909
910 if (value_type == 2)
911 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
912 param, (u8 *)value);
913 else
914 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
915 param, *(u32 *)value);
916
917 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
918 infobuf->name_length = cpu_to_le32(param_len);
919 infobuf->type = cpu_to_le32(value_type);
920 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
921 infobuf->value_length = cpu_to_le32(value_len);
922
923 /* simple string to unicode string conversion */
924 unibuf = (void *)infobuf + sizeof(*infobuf);
925 for (i = 0; i < param_len / sizeof(__le16); i++)
926 unibuf[i] = cpu_to_le16(param[i]);
927
928 if (value_type == 2) {
929 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
930 for (i = 0; i < value_len / sizeof(__le16); i++)
931 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
932 } else {
933 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
934 *dst_value = cpu_to_le32(*(u32 *)value);
935 }
936
937 #ifdef DEBUG
938 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
939 for (i = 0; i < info_len; i += 12) {
940 u32 *tmp = (u32 *)((u8 *)infobuf + i);
941 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
942 cpu_to_be32(tmp[0]),
943 cpu_to_be32(tmp[1]),
944 cpu_to_be32(tmp[2]));
945 }
946 #endif
947
948 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
949 infobuf, info_len);
950 if (ret != 0)
951 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
952 ret);
953
954 kfree(infobuf);
955 return ret;
956 }
957
958 static int rndis_set_config_parameter_str(struct usbnet *dev,
959 char *param, char *value)
960 {
961 return rndis_set_config_parameter(dev, param, 2, value);
962 }
963
964 /*
965 * data conversion functions
966 */
967 static int level_to_qual(int level)
968 {
969 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
970 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
971 }
972
973 /*
974 * common functions
975 */
976 static int set_infra_mode(struct usbnet *usbdev, int mode);
977 static void restore_keys(struct usbnet *usbdev);
978 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
979 bool *matched);
980
981 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
982 {
983 __le32 tmp;
984
985 /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
986 tmp = cpu_to_le32(1);
987 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
988 sizeof(tmp));
989 }
990
991 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
992 {
993 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
994 int ret;
995
996 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
997 ssid, sizeof(*ssid));
998 if (ret < 0) {
999 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1000 return ret;
1001 }
1002 if (ret == 0) {
1003 priv->radio_on = true;
1004 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1005 }
1006
1007 return ret;
1008 }
1009
1010 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1011 {
1012 int ret;
1013
1014 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1015 bssid, ETH_ALEN);
1016 if (ret < 0) {
1017 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1018 bssid, ret);
1019 return ret;
1020 }
1021
1022 return ret;
1023 }
1024
1025 static int clear_bssid(struct usbnet *usbdev)
1026 {
1027 static const u8 broadcast_mac[ETH_ALEN] = {
1028 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1029 };
1030
1031 return set_bssid(usbdev, broadcast_mac);
1032 }
1033
1034 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1035 {
1036 int ret, len;
1037
1038 len = ETH_ALEN;
1039 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1040 bssid, &len);
1041
1042 if (ret != 0)
1043 memset(bssid, 0, ETH_ALEN);
1044
1045 return ret;
1046 }
1047
1048 static int get_association_info(struct usbnet *usbdev,
1049 struct ndis_80211_assoc_info *info, int len)
1050 {
1051 return rndis_query_oid(usbdev,
1052 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1053 info, &len);
1054 }
1055
1056 static bool is_associated(struct usbnet *usbdev)
1057 {
1058 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1059 u8 bssid[ETH_ALEN];
1060 int ret;
1061
1062 if (!priv->radio_on)
1063 return false;
1064
1065 ret = get_bssid(usbdev, bssid);
1066
1067 return (ret == 0 && !is_zero_ether_addr(bssid));
1068 }
1069
1070 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1071 {
1072 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1073 struct ndis_80211_ssid ssid;
1074 int i, ret = 0;
1075
1076 if (priv->radio_on) {
1077 ret = rndis_set_oid(usbdev,
1078 RNDIS_OID_802_11_DISASSOCIATE,
1079 NULL, 0);
1080 if (ret == 0) {
1081 priv->radio_on = false;
1082 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1083 __func__);
1084
1085 if (reset_ssid)
1086 msleep(100);
1087 }
1088 }
1089
1090 /* disassociate causes radio to be turned off; if reset_ssid
1091 * is given, set random ssid to enable radio */
1092 if (reset_ssid) {
1093 /* Set device to infrastructure mode so we don't get ad-hoc
1094 * 'media connect' indications with the random ssid.
1095 */
1096 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1097
1098 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1099 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1100 ssid.essid[0] = 0x1;
1101 ssid.essid[1] = 0xff;
1102 for (i = 2; i < sizeof(ssid.essid); i++)
1103 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1104 ret = set_essid(usbdev, &ssid);
1105 }
1106 return ret;
1107 }
1108
1109 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1110 enum nl80211_auth_type auth_type, int keymgmt)
1111 {
1112 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1113 __le32 tmp;
1114 int auth_mode, ret;
1115
1116 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1117 __func__, wpa_version, auth_type, keymgmt);
1118
1119 if (wpa_version & NL80211_WPA_VERSION_2) {
1120 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1121 auth_mode = NDIS_80211_AUTH_WPA2;
1122 else
1123 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1124 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1125 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1126 auth_mode = NDIS_80211_AUTH_WPA;
1127 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1128 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1129 else
1130 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1131 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1132 auth_mode = NDIS_80211_AUTH_SHARED;
1133 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1134 auth_mode = NDIS_80211_AUTH_OPEN;
1135 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1136 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1137 else
1138 return -ENOTSUPP;
1139
1140 tmp = cpu_to_le32(auth_mode);
1141 ret = rndis_set_oid(usbdev,
1142 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1143 &tmp, sizeof(tmp));
1144 if (ret != 0) {
1145 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1146 ret);
1147 return ret;
1148 }
1149
1150 priv->wpa_version = wpa_version;
1151
1152 return 0;
1153 }
1154
1155 static int set_priv_filter(struct usbnet *usbdev)
1156 {
1157 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1158 __le32 tmp;
1159
1160 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1161 __func__, priv->wpa_version);
1162
1163 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1164 priv->wpa_version & NL80211_WPA_VERSION_1)
1165 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1166 else
1167 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1168
1169 return rndis_set_oid(usbdev,
1170 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1171 sizeof(tmp));
1172 }
1173
1174 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1175 {
1176 __le32 tmp;
1177 int encr_mode, ret;
1178
1179 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1180 __func__, pairwise, groupwise);
1181
1182 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1183 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1184 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1185 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1186 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1187 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1188 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1189 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1190 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1191 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1192 else
1193 encr_mode = NDIS_80211_ENCR_DISABLED;
1194
1195 tmp = cpu_to_le32(encr_mode);
1196 ret = rndis_set_oid(usbdev,
1197 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1198 sizeof(tmp));
1199 if (ret != 0) {
1200 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1201 ret);
1202 return ret;
1203 }
1204
1205 return 0;
1206 }
1207
1208 static int set_infra_mode(struct usbnet *usbdev, int mode)
1209 {
1210 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1211 __le32 tmp;
1212 int ret;
1213
1214 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1215 __func__, priv->infra_mode);
1216
1217 tmp = cpu_to_le32(mode);
1218 ret = rndis_set_oid(usbdev,
1219 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1220 &tmp, sizeof(tmp));
1221 if (ret != 0) {
1222 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1223 ret);
1224 return ret;
1225 }
1226
1227 /* NDIS drivers clear keys when infrastructure mode is
1228 * changed. But Linux tools assume otherwise. So set the
1229 * keys */
1230 restore_keys(usbdev);
1231
1232 priv->infra_mode = mode;
1233 return 0;
1234 }
1235
1236 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1237 {
1238 __le32 tmp;
1239
1240 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1241
1242 if (rts_threshold < 0 || rts_threshold > 2347)
1243 rts_threshold = 2347;
1244
1245 tmp = cpu_to_le32(rts_threshold);
1246 return rndis_set_oid(usbdev,
1247 RNDIS_OID_802_11_RTS_THRESHOLD,
1248 &tmp, sizeof(tmp));
1249 }
1250
1251 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1252 {
1253 __le32 tmp;
1254
1255 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1256
1257 if (frag_threshold < 256 || frag_threshold > 2346)
1258 frag_threshold = 2346;
1259
1260 tmp = cpu_to_le32(frag_threshold);
1261 return rndis_set_oid(usbdev,
1262 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1263 &tmp, sizeof(tmp));
1264 }
1265
1266 static void set_default_iw_params(struct usbnet *usbdev)
1267 {
1268 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1269 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1270 RNDIS_WLAN_KEY_MGMT_NONE);
1271 set_priv_filter(usbdev);
1272 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1273 }
1274
1275 static int deauthenticate(struct usbnet *usbdev)
1276 {
1277 int ret;
1278
1279 ret = disassociate(usbdev, true);
1280 set_default_iw_params(usbdev);
1281 return ret;
1282 }
1283
1284 static int set_channel(struct usbnet *usbdev, int channel)
1285 {
1286 struct ndis_80211_conf config;
1287 unsigned int dsconfig;
1288 int len, ret;
1289
1290 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1291
1292 /* this OID is valid only when not associated */
1293 if (is_associated(usbdev))
1294 return 0;
1295
1296 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1297
1298 len = sizeof(config);
1299 ret = rndis_query_oid(usbdev,
1300 RNDIS_OID_802_11_CONFIGURATION,
1301 &config, &len);
1302 if (ret < 0) {
1303 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1304 __func__);
1305 return ret;
1306 }
1307
1308 config.ds_config = cpu_to_le32(dsconfig);
1309 ret = rndis_set_oid(usbdev,
1310 RNDIS_OID_802_11_CONFIGURATION,
1311 &config, sizeof(config));
1312
1313 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1314
1315 return ret;
1316 }
1317
1318 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1319 u32 *beacon_period)
1320 {
1321 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1322 struct ieee80211_channel *channel;
1323 struct ndis_80211_conf config;
1324 int len, ret;
1325
1326 /* Get channel and beacon interval */
1327 len = sizeof(config);
1328 ret = rndis_query_oid(usbdev,
1329 RNDIS_OID_802_11_CONFIGURATION,
1330 &config, &len);
1331 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1332 __func__, ret);
1333 if (ret < 0)
1334 return NULL;
1335
1336 channel = ieee80211_get_channel(priv->wdev.wiphy,
1337 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1338 if (!channel)
1339 return NULL;
1340
1341 if (beacon_period)
1342 *beacon_period = le32_to_cpu(config.beacon_period);
1343 return channel;
1344 }
1345
1346 /* index must be 0 - N, as per NDIS */
1347 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1348 u8 index)
1349 {
1350 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1351 struct ndis_80211_wep_key ndis_key;
1352 u32 cipher;
1353 int ret;
1354
1355 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1356 __func__, index, key_len);
1357
1358 if (index >= RNDIS_WLAN_NUM_KEYS)
1359 return -EINVAL;
1360
1361 if (key_len == 5)
1362 cipher = WLAN_CIPHER_SUITE_WEP40;
1363 else if (key_len == 13)
1364 cipher = WLAN_CIPHER_SUITE_WEP104;
1365 else
1366 return -EINVAL;
1367
1368 memset(&ndis_key, 0, sizeof(ndis_key));
1369
1370 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1371 ndis_key.length = cpu_to_le32(key_len);
1372 ndis_key.index = cpu_to_le32(index);
1373 memcpy(&ndis_key.material, key, key_len);
1374
1375 if (index == priv->encr_tx_key_index) {
1376 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1377 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1378 RNDIS_WLAN_ALG_NONE);
1379 if (ret)
1380 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1381 ret);
1382 }
1383
1384 ret = rndis_set_oid(usbdev,
1385 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1386 sizeof(ndis_key));
1387 if (ret != 0) {
1388 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1389 index + 1, ret);
1390 return ret;
1391 }
1392
1393 priv->encr_keys[index].len = key_len;
1394 priv->encr_keys[index].cipher = cipher;
1395 memcpy(&priv->encr_keys[index].material, key, key_len);
1396 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1397
1398 return 0;
1399 }
1400
1401 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1402 u8 index, const u8 *addr, const u8 *rx_seq,
1403 int seq_len, u32 cipher, __le32 flags)
1404 {
1405 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1406 struct ndis_80211_key ndis_key;
1407 bool is_addr_ok;
1408 int ret;
1409
1410 if (index >= RNDIS_WLAN_NUM_KEYS) {
1411 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1412 __func__, index);
1413 return -EINVAL;
1414 }
1415 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1416 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1417 __func__, key_len);
1418 return -EINVAL;
1419 }
1420 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1421 if (!rx_seq || seq_len <= 0) {
1422 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1423 __func__);
1424 return -EINVAL;
1425 }
1426 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1427 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1428 return -EINVAL;
1429 }
1430 }
1431
1432 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1433 !is_broadcast_ether_addr(addr);
1434 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1435 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1436 __func__, addr);
1437 return -EINVAL;
1438 }
1439
1440 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1441 __func__, index,
1442 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1443 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1444 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1445
1446 memset(&ndis_key, 0, sizeof(ndis_key));
1447
1448 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1449 sizeof(ndis_key.material) + key_len);
1450 ndis_key.length = cpu_to_le32(key_len);
1451 ndis_key.index = cpu_to_le32(index) | flags;
1452
1453 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1454 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1455 * different order than NDIS spec, so swap the order here. */
1456 memcpy(ndis_key.material, key, 16);
1457 memcpy(ndis_key.material + 16, key + 24, 8);
1458 memcpy(ndis_key.material + 24, key + 16, 8);
1459 } else
1460 memcpy(ndis_key.material, key, key_len);
1461
1462 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1463 memcpy(ndis_key.rsc, rx_seq, seq_len);
1464
1465 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1466 /* pairwise key */
1467 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1468 } else {
1469 /* group key */
1470 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1471 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1472 else
1473 get_bssid(usbdev, ndis_key.bssid);
1474 }
1475
1476 ret = rndis_set_oid(usbdev,
1477 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1478 le32_to_cpu(ndis_key.size));
1479 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1480 __func__, ret);
1481 if (ret != 0)
1482 return ret;
1483
1484 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1485 priv->encr_keys[index].len = key_len;
1486 priv->encr_keys[index].cipher = cipher;
1487 memcpy(&priv->encr_keys[index].material, key, key_len);
1488 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1489 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1490 else
1491 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1492
1493 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1494 priv->encr_tx_key_index = index;
1495
1496 return 0;
1497 }
1498
1499 static int restore_key(struct usbnet *usbdev, u8 key_idx)
1500 {
1501 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1502 struct rndis_wlan_encr_key key;
1503
1504 if (is_wpa_key(priv, key_idx))
1505 return 0;
1506
1507 key = priv->encr_keys[key_idx];
1508
1509 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1510
1511 if (key.len == 0)
1512 return 0;
1513
1514 return add_wep_key(usbdev, key.material, key.len, key_idx);
1515 }
1516
1517 static void restore_keys(struct usbnet *usbdev)
1518 {
1519 int i;
1520
1521 for (i = 0; i < 4; i++)
1522 restore_key(usbdev, i);
1523 }
1524
1525 static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1526 {
1527 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1528 }
1529
1530 /* remove_key is for both wep and wpa */
1531 static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1532 {
1533 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1534 struct ndis_80211_remove_key remove_key;
1535 __le32 keyindex;
1536 bool is_wpa;
1537 int ret;
1538
1539 if (index >= RNDIS_WLAN_NUM_KEYS)
1540 return -ENOENT;
1541
1542 if (priv->encr_keys[index].len == 0)
1543 return 0;
1544
1545 is_wpa = is_wpa_key(priv, index);
1546
1547 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1548 __func__, index, is_wpa ? "wpa" : "wep",
1549 priv->encr_keys[index].len);
1550
1551 clear_key(priv, index);
1552
1553 if (is_wpa) {
1554 remove_key.size = cpu_to_le32(sizeof(remove_key));
1555 remove_key.index = cpu_to_le32(index);
1556 if (bssid) {
1557 /* pairwise key */
1558 if (!is_broadcast_ether_addr(bssid))
1559 remove_key.index |=
1560 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1561 memcpy(remove_key.bssid, bssid,
1562 sizeof(remove_key.bssid));
1563 } else
1564 memset(remove_key.bssid, 0xff,
1565 sizeof(remove_key.bssid));
1566
1567 ret = rndis_set_oid(usbdev,
1568 RNDIS_OID_802_11_REMOVE_KEY,
1569 &remove_key, sizeof(remove_key));
1570 if (ret != 0)
1571 return ret;
1572 } else {
1573 keyindex = cpu_to_le32(index);
1574 ret = rndis_set_oid(usbdev,
1575 RNDIS_OID_802_11_REMOVE_WEP,
1576 &keyindex, sizeof(keyindex));
1577 if (ret != 0) {
1578 netdev_warn(usbdev->net,
1579 "removing encryption key %d failed (%08X)\n",
1580 index, ret);
1581 return ret;
1582 }
1583 }
1584
1585 /* if it is transmit key, disable encryption */
1586 if (index == priv->encr_tx_key_index)
1587 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1588
1589 return 0;
1590 }
1591
1592 static void set_multicast_list(struct usbnet *usbdev)
1593 {
1594 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1595 struct netdev_hw_addr *ha;
1596 __le32 filter, basefilter;
1597 int ret;
1598 char *mc_addrs = NULL;
1599 int mc_count;
1600
1601 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1602 RNDIS_PACKET_TYPE_BROADCAST);
1603
1604 if (usbdev->net->flags & IFF_PROMISC) {
1605 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1606 RNDIS_PACKET_TYPE_ALL_LOCAL);
1607 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1608 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1609 }
1610
1611 if (filter != basefilter)
1612 goto set_filter;
1613
1614 /*
1615 * mc_list should be accessed holding the lock, so copy addresses to
1616 * local buffer first.
1617 */
1618 netif_addr_lock_bh(usbdev->net);
1619 mc_count = netdev_mc_count(usbdev->net);
1620 if (mc_count > priv->multicast_size) {
1621 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1622 } else if (mc_count) {
1623 int i = 0;
1624
1625 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1626 if (!mc_addrs) {
1627 netdev_warn(usbdev->net,
1628 "couldn't alloc %d bytes of memory\n",
1629 mc_count * ETH_ALEN);
1630 netif_addr_unlock_bh(usbdev->net);
1631 return;
1632 }
1633
1634 netdev_for_each_mc_addr(ha, usbdev->net)
1635 memcpy(mc_addrs + i++ * ETH_ALEN,
1636 ha->addr, ETH_ALEN);
1637 }
1638 netif_addr_unlock_bh(usbdev->net);
1639
1640 if (filter != basefilter)
1641 goto set_filter;
1642
1643 if (mc_count) {
1644 ret = rndis_set_oid(usbdev,
1645 RNDIS_OID_802_3_MULTICAST_LIST,
1646 mc_addrs, mc_count * ETH_ALEN);
1647 kfree(mc_addrs);
1648 if (ret == 0)
1649 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1650 else
1651 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1652
1653 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1654 mc_count, priv->multicast_size, ret);
1655 }
1656
1657 set_filter:
1658 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1659 sizeof(filter));
1660 if (ret < 0) {
1661 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1662 le32_to_cpu(filter));
1663 }
1664
1665 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1666 le32_to_cpu(filter), ret);
1667 }
1668
1669 #ifdef DEBUG
1670 static void debug_print_pmkids(struct usbnet *usbdev,
1671 struct ndis_80211_pmkid *pmkids,
1672 const char *func_str)
1673 {
1674 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1675 int i, len, count, max_pmkids, entry_len;
1676
1677 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1678 len = le32_to_cpu(pmkids->length);
1679 count = le32_to_cpu(pmkids->bssid_info_count);
1680
1681 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1682
1683 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1684 "%d)\n", func_str, count, len, entry_len);
1685
1686 if (count > max_pmkids)
1687 count = max_pmkids;
1688
1689 for (i = 0; i < count; i++) {
1690 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1691
1692 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1693 "pmkid: %08X:%08X:%08X:%08X\n",
1694 func_str, pmkids->bssid_info[i].bssid,
1695 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1696 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1697 }
1698 }
1699 #else
1700 static void debug_print_pmkids(struct usbnet *usbdev,
1701 struct ndis_80211_pmkid *pmkids,
1702 const char *func_str)
1703 {
1704 return;
1705 }
1706 #endif
1707
1708 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1709 {
1710 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1711 struct ndis_80211_pmkid *pmkids;
1712 int len, ret, max_pmkids;
1713
1714 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1715 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1716
1717 pmkids = kzalloc(len, GFP_KERNEL);
1718 if (!pmkids)
1719 return ERR_PTR(-ENOMEM);
1720
1721 pmkids->length = cpu_to_le32(len);
1722 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1723
1724 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1725 pmkids, &len);
1726 if (ret < 0) {
1727 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1728 " -> %d\n", __func__, len, max_pmkids, ret);
1729
1730 kfree(pmkids);
1731 return ERR_PTR(ret);
1732 }
1733
1734 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1735 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1736
1737 debug_print_pmkids(usbdev, pmkids, __func__);
1738
1739 return pmkids;
1740 }
1741
1742 static int set_device_pmkids(struct usbnet *usbdev,
1743 struct ndis_80211_pmkid *pmkids)
1744 {
1745 int ret, len, num_pmkids;
1746
1747 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1748 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1749 pmkids->length = cpu_to_le32(len);
1750
1751 debug_print_pmkids(usbdev, pmkids, __func__);
1752
1753 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1754 le32_to_cpu(pmkids->length));
1755 if (ret < 0) {
1756 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1757 "\n", __func__, len, num_pmkids, ret);
1758 }
1759
1760 kfree(pmkids);
1761 return ret;
1762 }
1763
1764 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1765 struct ndis_80211_pmkid *pmkids,
1766 struct cfg80211_pmksa *pmksa,
1767 int max_pmkids)
1768 {
1769 int i, newlen, err;
1770 unsigned int count;
1771
1772 count = le32_to_cpu(pmkids->bssid_info_count);
1773
1774 if (count > max_pmkids)
1775 count = max_pmkids;
1776
1777 for (i = 0; i < count; i++)
1778 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1779 pmksa->bssid))
1780 break;
1781
1782 /* pmkid not found */
1783 if (i == count) {
1784 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1785 __func__, pmksa->bssid);
1786 err = -ENOENT;
1787 goto error;
1788 }
1789
1790 for (; i + 1 < count; i++)
1791 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1792
1793 count--;
1794 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1795
1796 pmkids->length = cpu_to_le32(newlen);
1797 pmkids->bssid_info_count = cpu_to_le32(count);
1798
1799 return pmkids;
1800 error:
1801 kfree(pmkids);
1802 return ERR_PTR(err);
1803 }
1804
1805 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1806 struct ndis_80211_pmkid *pmkids,
1807 struct cfg80211_pmksa *pmksa,
1808 int max_pmkids)
1809 {
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 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1841 if (!pmkids) {
1842 err = -ENOMEM;
1843 goto error;
1844 }
1845
1846 pmkids->length = cpu_to_le32(newlen);
1847 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1848
1849 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1850 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1851
1852 return pmkids;
1853 error:
1854 kfree(pmkids);
1855 return ERR_PTR(err);
1856 }
1857
1858 /*
1859 * cfg80211 ops
1860 */
1861 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1862 struct net_device *dev,
1863 enum nl80211_iftype type, u32 *flags,
1864 struct vif_params *params)
1865 {
1866 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1867 struct usbnet *usbdev = priv->usbdev;
1868 int mode;
1869
1870 switch (type) {
1871 case NL80211_IFTYPE_ADHOC:
1872 mode = NDIS_80211_INFRA_ADHOC;
1873 break;
1874 case NL80211_IFTYPE_STATION:
1875 mode = NDIS_80211_INFRA_INFRA;
1876 break;
1877 default:
1878 return -EINVAL;
1879 }
1880
1881 priv->wdev.iftype = type;
1882
1883 return set_infra_mode(usbdev, mode);
1884 }
1885
1886 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1887 {
1888 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1889 struct usbnet *usbdev = priv->usbdev;
1890 int err;
1891
1892 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1893 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1894 if (err < 0)
1895 return err;
1896 }
1897
1898 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1899 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1900 if (err < 0)
1901 return err;
1902 }
1903
1904 return 0;
1905 }
1906
1907 static int rndis_set_tx_power(struct wiphy *wiphy,
1908 enum nl80211_tx_power_setting type,
1909 int mbm)
1910 {
1911 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1912 struct usbnet *usbdev = priv->usbdev;
1913
1914 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1915 __func__, type, mbm);
1916
1917 if (mbm < 0 || (mbm % 100))
1918 return -ENOTSUPP;
1919
1920 /* Device doesn't support changing txpower after initialization, only
1921 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1922 * currently used.
1923 */
1924 if (type == NL80211_TX_POWER_AUTOMATIC ||
1925 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1926 if (!priv->radio_on)
1927 disassociate(usbdev, true); /* turn on radio */
1928
1929 return 0;
1930 }
1931
1932 return -ENOTSUPP;
1933 }
1934
1935 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1936 {
1937 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1938 struct usbnet *usbdev = priv->usbdev;
1939
1940 *dbm = get_bcm4320_power_dbm(priv);
1941
1942 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1943
1944 return 0;
1945 }
1946
1947 #define SCAN_DELAY_JIFFIES (6 * HZ)
1948 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1949 struct cfg80211_scan_request *request)
1950 {
1951 struct usbnet *usbdev = netdev_priv(dev);
1952 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1953 int ret;
1954 int delay = SCAN_DELAY_JIFFIES;
1955
1956 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1957
1958 /* Get current bssid list from device before new scan, as new scan
1959 * clears internal bssid list.
1960 */
1961 rndis_check_bssid_list(usbdev, NULL, NULL);
1962
1963 if (!request)
1964 return -EINVAL;
1965
1966 if (priv->scan_request && priv->scan_request != request)
1967 return -EBUSY;
1968
1969 priv->scan_request = request;
1970
1971 ret = rndis_start_bssid_list_scan(usbdev);
1972 if (ret == 0) {
1973 if (priv->device_type == RNDIS_BCM4320A)
1974 delay = HZ;
1975
1976 /* Wait before retrieving scan results from device */
1977 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1978 }
1979
1980 return ret;
1981 }
1982
1983 static bool rndis_bss_info_update(struct usbnet *usbdev,
1984 struct ndis_80211_bssid_ex *bssid)
1985 {
1986 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1987 struct ieee80211_channel *channel;
1988 struct cfg80211_bss *bss;
1989 s32 signal;
1990 u64 timestamp;
1991 u16 capability;
1992 u16 beacon_interval;
1993 struct ndis_80211_fixed_ies *fixed;
1994 int ie_len, bssid_len;
1995 u8 *ie;
1996
1997 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1998 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1999
2000 /* parse bssid structure */
2001 bssid_len = le32_to_cpu(bssid->length);
2002
2003 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2004 sizeof(struct ndis_80211_fixed_ies))
2005 return NULL;
2006
2007 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2008
2009 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2010 ie_len = min(bssid_len - (int)sizeof(*bssid),
2011 (int)le32_to_cpu(bssid->ie_length));
2012 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2013 if (ie_len < 0)
2014 return NULL;
2015
2016 /* extract data for cfg80211_inform_bss */
2017 channel = ieee80211_get_channel(priv->wdev.wiphy,
2018 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2019 if (!channel)
2020 return NULL;
2021
2022 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2023 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2024 capability = le16_to_cpu(fixed->capabilities);
2025 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2026
2027 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2028 timestamp, capability, beacon_interval, ie, ie_len, signal,
2029 GFP_KERNEL);
2030 cfg80211_put_bss(bss);
2031
2032 return (bss != NULL);
2033 }
2034
2035 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2036 struct ndis_80211_bssid_ex *bssid,
2037 int *bssid_len, void *buf, int len)
2038 {
2039 void *buf_end, *bssid_end;
2040
2041 buf_end = (char *)buf + len;
2042 bssid_end = (char *)bssid + *bssid_len;
2043
2044 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2045 *bssid_len = 0;
2046 return NULL;
2047 } else {
2048 bssid = (void *)((char *)bssid + *bssid_len);
2049 *bssid_len = le32_to_cpu(bssid->length);
2050 return bssid;
2051 }
2052 }
2053
2054 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2055 int bssid_len, void *buf, int len)
2056 {
2057 void *buf_end, *bssid_end;
2058
2059 if (!bssid || bssid_len <= 0 || bssid_len > len)
2060 return false;
2061
2062 buf_end = (char *)buf + len;
2063 bssid_end = (char *)bssid + bssid_len;
2064
2065 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2066 }
2067
2068 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2069 bool *matched)
2070 {
2071 void *buf = NULL;
2072 struct ndis_80211_bssid_list_ex *bssid_list;
2073 struct ndis_80211_bssid_ex *bssid;
2074 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2075
2076 netdev_dbg(usbdev->net, "%s()\n", __func__);
2077
2078 len = CONTROL_BUFFER_SIZE;
2079 resize_buf:
2080 buf = kzalloc(len, GFP_KERNEL);
2081 if (!buf) {
2082 ret = -ENOMEM;
2083 goto out;
2084 }
2085
2086 /* BSSID-list might have got bigger last time we checked, keep
2087 * resizing until it won't get any bigger.
2088 */
2089 new_len = len;
2090 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2091 buf, &new_len);
2092 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2093 goto out;
2094
2095 if (new_len > len) {
2096 len = new_len;
2097 kfree(buf);
2098 goto resize_buf;
2099 }
2100
2101 len = new_len;
2102
2103 bssid_list = buf;
2104 count = le32_to_cpu(bssid_list->num_items);
2105 real_count = 0;
2106 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2107
2108 bssid_len = 0;
2109 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2110
2111 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2112 * received 'num_items' and walking through full bssid buffer instead.
2113 */
2114 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2115 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2116 matched) {
2117 if (!ether_addr_equal(bssid->mac, match_bssid))
2118 *matched = true;
2119 }
2120
2121 real_count++;
2122 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2123 }
2124
2125 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2126 " %d\n", __func__, count, real_count);
2127
2128 out:
2129 kfree(buf);
2130 return ret;
2131 }
2132
2133 static void rndis_get_scan_results(struct work_struct *work)
2134 {
2135 struct rndis_wlan_private *priv =
2136 container_of(work, struct rndis_wlan_private, scan_work.work);
2137 struct usbnet *usbdev = priv->usbdev;
2138 int ret;
2139
2140 netdev_dbg(usbdev->net, "get_scan_results\n");
2141
2142 if (!priv->scan_request)
2143 return;
2144
2145 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2146
2147 cfg80211_scan_done(priv->scan_request, ret < 0);
2148
2149 priv->scan_request = NULL;
2150 }
2151
2152 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2153 struct cfg80211_connect_params *sme)
2154 {
2155 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2156 struct usbnet *usbdev = priv->usbdev;
2157 struct ieee80211_channel *channel = sme->channel;
2158 struct ndis_80211_ssid ssid;
2159 int pairwise = RNDIS_WLAN_ALG_NONE;
2160 int groupwise = RNDIS_WLAN_ALG_NONE;
2161 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2162 int length, i, ret, chan = -1;
2163
2164 if (channel)
2165 chan = ieee80211_frequency_to_channel(channel->center_freq);
2166
2167 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2168 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2169 pairwise |=
2170 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2171
2172 if (sme->crypto.n_ciphers_pairwise > 0 &&
2173 pairwise == RNDIS_WLAN_ALG_NONE) {
2174 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2175 return -ENOTSUPP;
2176 }
2177
2178 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2179 keymgmt |=
2180 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2181
2182 if (sme->crypto.n_akm_suites > 0 &&
2183 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2184 netdev_err(usbdev->net, "Invalid keymgmt\n");
2185 return -ENOTSUPP;
2186 }
2187
2188 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2189 sme->ssid, sme->bssid, chan,
2190 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2191 groupwise, pairwise, keymgmt);
2192
2193 if (is_associated(usbdev))
2194 disassociate(usbdev, false);
2195
2196 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2197 if (ret < 0) {
2198 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2199 ret);
2200 goto err_turn_radio_on;
2201 }
2202
2203 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2204 keymgmt);
2205 if (ret < 0) {
2206 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2207 ret);
2208 goto err_turn_radio_on;
2209 }
2210
2211 set_priv_filter(usbdev);
2212
2213 ret = set_encr_mode(usbdev, pairwise, groupwise);
2214 if (ret < 0) {
2215 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2216 ret);
2217 goto err_turn_radio_on;
2218 }
2219
2220 if (channel) {
2221 ret = set_channel(usbdev, chan);
2222 if (ret < 0) {
2223 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2224 ret);
2225 goto err_turn_radio_on;
2226 }
2227 }
2228
2229 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2230 priv->encr_tx_key_index = sme->key_idx;
2231 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2232 if (ret < 0) {
2233 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2234 ret, sme->key_len, sme->key_idx);
2235 goto err_turn_radio_on;
2236 }
2237 }
2238
2239 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2240 !is_broadcast_ether_addr(sme->bssid)) {
2241 ret = set_bssid(usbdev, sme->bssid);
2242 if (ret < 0) {
2243 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2244 ret);
2245 goto err_turn_radio_on;
2246 }
2247 } else
2248 clear_bssid(usbdev);
2249
2250 length = sme->ssid_len;
2251 if (length > NDIS_802_11_LENGTH_SSID)
2252 length = NDIS_802_11_LENGTH_SSID;
2253
2254 memset(&ssid, 0, sizeof(ssid));
2255 ssid.length = cpu_to_le32(length);
2256 memcpy(ssid.essid, sme->ssid, length);
2257
2258 /* Pause and purge rx queue, so we don't pass packets before
2259 * 'media connect'-indication.
2260 */
2261 usbnet_pause_rx(usbdev);
2262 usbnet_purge_paused_rxq(usbdev);
2263
2264 ret = set_essid(usbdev, &ssid);
2265 if (ret < 0)
2266 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2267 return ret;
2268
2269 err_turn_radio_on:
2270 disassociate(usbdev, true);
2271
2272 return ret;
2273 }
2274
2275 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2276 u16 reason_code)
2277 {
2278 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2279 struct usbnet *usbdev = priv->usbdev;
2280
2281 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2282
2283 priv->connected = false;
2284 memset(priv->bssid, 0, ETH_ALEN);
2285
2286 return deauthenticate(usbdev);
2287 }
2288
2289 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2290 struct cfg80211_ibss_params *params)
2291 {
2292 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2293 struct usbnet *usbdev = priv->usbdev;
2294 struct ieee80211_channel *channel = params->channel;
2295 struct ndis_80211_ssid ssid;
2296 enum nl80211_auth_type auth_type;
2297 int ret, alg, length, chan = -1;
2298
2299 if (channel)
2300 chan = ieee80211_frequency_to_channel(channel->center_freq);
2301
2302 /* TODO: How to handle ad-hoc encryption?
2303 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2304 * pre-shared for encryption (open/shared/wpa), is key set before
2305 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2306 */
2307 if (params->privacy) {
2308 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2309 alg = RNDIS_WLAN_ALG_WEP;
2310 } else {
2311 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2312 alg = RNDIS_WLAN_ALG_NONE;
2313 }
2314
2315 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2316 params->ssid, params->bssid, chan, params->privacy);
2317
2318 if (is_associated(usbdev))
2319 disassociate(usbdev, false);
2320
2321 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2322 if (ret < 0) {
2323 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2324 ret);
2325 goto err_turn_radio_on;
2326 }
2327
2328 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2329 if (ret < 0) {
2330 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2331 ret);
2332 goto err_turn_radio_on;
2333 }
2334
2335 set_priv_filter(usbdev);
2336
2337 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2338 if (ret < 0) {
2339 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2340 ret);
2341 goto err_turn_radio_on;
2342 }
2343
2344 if (channel) {
2345 ret = set_channel(usbdev, chan);
2346 if (ret < 0) {
2347 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2348 ret);
2349 goto err_turn_radio_on;
2350 }
2351 }
2352
2353 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2354 !is_broadcast_ether_addr(params->bssid)) {
2355 ret = set_bssid(usbdev, params->bssid);
2356 if (ret < 0) {
2357 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2358 ret);
2359 goto err_turn_radio_on;
2360 }
2361 } else
2362 clear_bssid(usbdev);
2363
2364 length = params->ssid_len;
2365 if (length > NDIS_802_11_LENGTH_SSID)
2366 length = NDIS_802_11_LENGTH_SSID;
2367
2368 memset(&ssid, 0, sizeof(ssid));
2369 ssid.length = cpu_to_le32(length);
2370 memcpy(ssid.essid, params->ssid, length);
2371
2372 /* Don't need to pause rx queue for ad-hoc. */
2373 usbnet_purge_paused_rxq(usbdev);
2374 usbnet_resume_rx(usbdev);
2375
2376 ret = set_essid(usbdev, &ssid);
2377 if (ret < 0)
2378 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2379 ret);
2380 return ret;
2381
2382 err_turn_radio_on:
2383 disassociate(usbdev, true);
2384
2385 return ret;
2386 }
2387
2388 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2389 {
2390 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2391 struct usbnet *usbdev = priv->usbdev;
2392
2393 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2394
2395 priv->connected = false;
2396 memset(priv->bssid, 0, ETH_ALEN);
2397
2398 return deauthenticate(usbdev);
2399 }
2400
2401 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
2402 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2403 {
2404 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2405 struct usbnet *usbdev = priv->usbdev;
2406
2407 return set_channel(usbdev,
2408 ieee80211_frequency_to_channel(chan->center_freq));
2409 }
2410
2411 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2412 u8 key_index, bool pairwise, const u8 *mac_addr,
2413 struct key_params *params)
2414 {
2415 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2416 struct usbnet *usbdev = priv->usbdev;
2417 __le32 flags;
2418
2419 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2420 __func__, key_index, mac_addr, params->cipher);
2421
2422 switch (params->cipher) {
2423 case WLAN_CIPHER_SUITE_WEP40:
2424 case WLAN_CIPHER_SUITE_WEP104:
2425 return add_wep_key(usbdev, params->key, params->key_len,
2426 key_index);
2427 case WLAN_CIPHER_SUITE_TKIP:
2428 case WLAN_CIPHER_SUITE_CCMP:
2429 flags = 0;
2430
2431 if (params->seq && params->seq_len > 0)
2432 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2433 if (mac_addr)
2434 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2435 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2436
2437 return add_wpa_key(usbdev, params->key, params->key_len,
2438 key_index, mac_addr, params->seq,
2439 params->seq_len, params->cipher, flags);
2440 default:
2441 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2442 __func__, params->cipher);
2443 return -ENOTSUPP;
2444 }
2445 }
2446
2447 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2448 u8 key_index, bool pairwise, const u8 *mac_addr)
2449 {
2450 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2451 struct usbnet *usbdev = priv->usbdev;
2452
2453 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2454
2455 return remove_key(usbdev, key_index, mac_addr);
2456 }
2457
2458 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2459 u8 key_index, bool unicast, bool multicast)
2460 {
2461 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2462 struct usbnet *usbdev = priv->usbdev;
2463 struct rndis_wlan_encr_key key;
2464
2465 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2466
2467 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2468 return -ENOENT;
2469
2470 priv->encr_tx_key_index = key_index;
2471
2472 if (is_wpa_key(priv, key_index))
2473 return 0;
2474
2475 key = priv->encr_keys[key_index];
2476
2477 return add_wep_key(usbdev, key.material, key.len, key_index);
2478 }
2479
2480 static void rndis_fill_station_info(struct usbnet *usbdev,
2481 struct station_info *sinfo)
2482 {
2483 __le32 linkspeed, rssi;
2484 int ret, len;
2485
2486 memset(sinfo, 0, sizeof(*sinfo));
2487
2488 len = sizeof(linkspeed);
2489 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2490 if (ret == 0) {
2491 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2492 sinfo->filled |= STATION_INFO_TX_BITRATE;
2493 }
2494
2495 len = sizeof(rssi);
2496 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2497 &rssi, &len);
2498 if (ret == 0) {
2499 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2500 sinfo->filled |= STATION_INFO_SIGNAL;
2501 }
2502 }
2503
2504 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2505 u8 *mac, struct station_info *sinfo)
2506 {
2507 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2508 struct usbnet *usbdev = priv->usbdev;
2509
2510 if (!ether_addr_equal(priv->bssid, mac))
2511 return -ENOENT;
2512
2513 rndis_fill_station_info(usbdev, sinfo);
2514
2515 return 0;
2516 }
2517
2518 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2519 int idx, u8 *mac, struct station_info *sinfo)
2520 {
2521 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2522 struct usbnet *usbdev = priv->usbdev;
2523
2524 if (idx != 0)
2525 return -ENOENT;
2526
2527 memcpy(mac, priv->bssid, ETH_ALEN);
2528
2529 rndis_fill_station_info(usbdev, sinfo);
2530
2531 return 0;
2532 }
2533
2534 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2535 struct cfg80211_pmksa *pmksa)
2536 {
2537 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2538 struct usbnet *usbdev = priv->usbdev;
2539 struct ndis_80211_pmkid *pmkids;
2540 u32 *tmp = (u32 *)pmksa->pmkid;
2541
2542 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2543 pmksa->bssid,
2544 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2545 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2546
2547 pmkids = get_device_pmkids(usbdev);
2548 if (IS_ERR(pmkids)) {
2549 /* couldn't read PMKID cache from device */
2550 return PTR_ERR(pmkids);
2551 }
2552
2553 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2554 if (IS_ERR(pmkids)) {
2555 /* not found, list full, etc */
2556 return PTR_ERR(pmkids);
2557 }
2558
2559 return set_device_pmkids(usbdev, pmkids);
2560 }
2561
2562 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2563 struct cfg80211_pmksa *pmksa)
2564 {
2565 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2566 struct usbnet *usbdev = priv->usbdev;
2567 struct ndis_80211_pmkid *pmkids;
2568 u32 *tmp = (u32 *)pmksa->pmkid;
2569
2570 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2571 pmksa->bssid,
2572 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2573 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2574
2575 pmkids = get_device_pmkids(usbdev);
2576 if (IS_ERR(pmkids)) {
2577 /* Couldn't read PMKID cache from device */
2578 return PTR_ERR(pmkids);
2579 }
2580
2581 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2582 if (IS_ERR(pmkids)) {
2583 /* not found, etc */
2584 return PTR_ERR(pmkids);
2585 }
2586
2587 return set_device_pmkids(usbdev, pmkids);
2588 }
2589
2590 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2591 {
2592 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2593 struct usbnet *usbdev = priv->usbdev;
2594 struct ndis_80211_pmkid pmkid;
2595
2596 netdev_dbg(usbdev->net, "%s()\n", __func__);
2597
2598 memset(&pmkid, 0, sizeof(pmkid));
2599
2600 pmkid.length = cpu_to_le32(sizeof(pmkid));
2601 pmkid.bssid_info_count = cpu_to_le32(0);
2602
2603 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2604 &pmkid, sizeof(pmkid));
2605 }
2606
2607 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2608 bool enabled, int timeout)
2609 {
2610 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2611 struct usbnet *usbdev = priv->usbdev;
2612 int power_mode;
2613 __le32 mode;
2614 int ret;
2615
2616 if (priv->device_type != RNDIS_BCM4320B)
2617 return -ENOTSUPP;
2618
2619 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2620 enabled ? "enabled" : "disabled",
2621 timeout);
2622
2623 if (enabled)
2624 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2625 else
2626 power_mode = NDIS_80211_POWER_MODE_CAM;
2627
2628 if (power_mode == priv->power_mode)
2629 return 0;
2630
2631 priv->power_mode = power_mode;
2632
2633 mode = cpu_to_le32(power_mode);
2634 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2635 &mode, sizeof(mode));
2636
2637 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2638 __func__, ret);
2639
2640 return ret;
2641 }
2642
2643 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2644 struct net_device *dev,
2645 s32 rssi_thold, u32 rssi_hyst)
2646 {
2647 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2648
2649 priv->cqm_rssi_thold = rssi_thold;
2650 priv->cqm_rssi_hyst = rssi_hyst;
2651 priv->last_cqm_event_rssi = 0;
2652
2653 return 0;
2654 }
2655
2656 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2657 struct ndis_80211_assoc_info *info)
2658 {
2659 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2660 struct ieee80211_channel *channel;
2661 struct ndis_80211_ssid ssid;
2662 struct cfg80211_bss *bss;
2663 s32 signal;
2664 u64 timestamp;
2665 u16 capability;
2666 u32 beacon_period = 0;
2667 __le32 rssi;
2668 u8 ie_buf[34];
2669 int len, ret, ie_len;
2670
2671 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2672 len = sizeof(rssi);
2673 rssi = 0;
2674 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2675 &rssi, &len);
2676 signal = level_to_qual(le32_to_cpu(rssi));
2677
2678 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2679 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2680 level_to_qual(le32_to_cpu(rssi)));
2681
2682 /* Get AP capabilities */
2683 if (info) {
2684 capability = le16_to_cpu(info->resp_ie.capa);
2685 } else {
2686 /* Set atleast ESS/IBSS capability */
2687 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2688 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2689 }
2690
2691 /* Get channel and beacon interval */
2692 channel = get_current_channel(usbdev, &beacon_period);
2693 if (!channel) {
2694 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2695 __func__);
2696 return;
2697 }
2698
2699 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2700 len = sizeof(ssid);
2701 memset(&ssid, 0, sizeof(ssid));
2702 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2703 &ssid, &len);
2704 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2705 "'%.32s'\n", __func__, ret,
2706 le32_to_cpu(ssid.length), ssid.essid);
2707
2708 if (le32_to_cpu(ssid.length) > 32)
2709 ssid.length = cpu_to_le32(32);
2710
2711 ie_buf[0] = WLAN_EID_SSID;
2712 ie_buf[1] = le32_to_cpu(ssid.length);
2713 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2714
2715 ie_len = le32_to_cpu(ssid.length) + 2;
2716
2717 /* no tsf */
2718 timestamp = 0;
2719
2720 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2721 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2722 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2723 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2724 ssid.essid, signal);
2725
2726 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2727 timestamp, capability, beacon_period, ie_buf, ie_len,
2728 signal, GFP_KERNEL);
2729 cfg80211_put_bss(bss);
2730 }
2731
2732 /*
2733 * workers, indication handlers, device poller
2734 */
2735 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2736 {
2737 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2738 struct ndis_80211_assoc_info *info = NULL;
2739 u8 bssid[ETH_ALEN];
2740 unsigned int resp_ie_len, req_ie_len;
2741 unsigned int offset;
2742 u8 *req_ie, *resp_ie;
2743 int ret;
2744 bool roamed = false;
2745 bool match_bss;
2746
2747 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2748 /* received media connect indication while connected, either
2749 * device reassociated with same AP or roamed to new. */
2750 roamed = true;
2751 }
2752
2753 req_ie_len = 0;
2754 resp_ie_len = 0;
2755 req_ie = NULL;
2756 resp_ie = NULL;
2757
2758 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2759 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2760 if (!info) {
2761 /* No memory? Try resume work later */
2762 set_bit(WORK_LINK_UP, &priv->work_pending);
2763 queue_work(priv->workqueue, &priv->work);
2764 return;
2765 }
2766
2767 /* Get association info IEs from device. */
2768 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2769 if (!ret) {
2770 req_ie_len = le32_to_cpu(info->req_ie_length);
2771 if (req_ie_len > CONTROL_BUFFER_SIZE)
2772 req_ie_len = CONTROL_BUFFER_SIZE;
2773 if (req_ie_len != 0) {
2774 offset = le32_to_cpu(info->offset_req_ies);
2775
2776 if (offset > CONTROL_BUFFER_SIZE)
2777 offset = CONTROL_BUFFER_SIZE;
2778
2779 req_ie = (u8 *)info + offset;
2780
2781 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2782 req_ie_len =
2783 CONTROL_BUFFER_SIZE - offset;
2784 }
2785
2786 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2787 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2788 resp_ie_len = CONTROL_BUFFER_SIZE;
2789 if (resp_ie_len != 0) {
2790 offset = le32_to_cpu(info->offset_resp_ies);
2791
2792 if (offset > CONTROL_BUFFER_SIZE)
2793 offset = CONTROL_BUFFER_SIZE;
2794
2795 resp_ie = (u8 *)info + offset;
2796
2797 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2798 resp_ie_len =
2799 CONTROL_BUFFER_SIZE - offset;
2800 }
2801 } else {
2802 /* Since rndis_wlan_craft_connected_bss() might use info
2803 * later and expects info to contain valid data if
2804 * non-null, free info and set NULL here.
2805 */
2806 kfree(info);
2807 info = NULL;
2808 }
2809 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2810 return;
2811
2812 ret = get_bssid(usbdev, bssid);
2813 if (ret < 0)
2814 memset(bssid, 0, sizeof(bssid));
2815
2816 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2817 bssid, roamed ? " roamed" : "");
2818
2819 /* Internal bss list in device should contain at least the currently
2820 * connected bss and we can get it to cfg80211 with
2821 * rndis_check_bssid_list().
2822 *
2823 * NDIS spec says: "If the device is associated, but the associated
2824 * BSSID is not in its BSSID scan list, then the driver must add an
2825 * entry for the BSSID at the end of the data that it returns in
2826 * response to query of RNDIS_OID_802_11_BSSID_LIST."
2827 *
2828 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2829 */
2830 match_bss = false;
2831 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2832
2833 if (!is_zero_ether_addr(bssid) && !match_bss) {
2834 /* Couldn't get bss from device, we need to manually craft bss
2835 * for cfg80211.
2836 */
2837 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2838 }
2839
2840 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2841 if (!roamed)
2842 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2843 req_ie_len, resp_ie,
2844 resp_ie_len, 0, GFP_KERNEL);
2845 else
2846 cfg80211_roamed(usbdev->net,
2847 get_current_channel(usbdev, NULL),
2848 bssid, req_ie, req_ie_len,
2849 resp_ie, resp_ie_len, GFP_KERNEL);
2850 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2851 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2852
2853 if (info != NULL)
2854 kfree(info);
2855
2856 priv->connected = true;
2857 memcpy(priv->bssid, bssid, ETH_ALEN);
2858
2859 usbnet_resume_rx(usbdev);
2860 netif_carrier_on(usbdev->net);
2861 }
2862
2863 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2864 {
2865 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2866
2867 if (priv->connected) {
2868 priv->connected = false;
2869 memset(priv->bssid, 0, ETH_ALEN);
2870
2871 deauthenticate(usbdev);
2872
2873 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2874 }
2875
2876 netif_carrier_off(usbdev->net);
2877 }
2878
2879 static void rndis_wlan_worker(struct work_struct *work)
2880 {
2881 struct rndis_wlan_private *priv =
2882 container_of(work, struct rndis_wlan_private, work);
2883 struct usbnet *usbdev = priv->usbdev;
2884
2885 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2886 rndis_wlan_do_link_up_work(usbdev);
2887
2888 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2889 rndis_wlan_do_link_down_work(usbdev);
2890
2891 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2892 set_multicast_list(usbdev);
2893 }
2894
2895 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2896 {
2897 struct usbnet *usbdev = netdev_priv(dev);
2898 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2899
2900 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2901 return;
2902
2903 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2904 queue_work(priv->workqueue, &priv->work);
2905 }
2906
2907 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2908 struct ndis_80211_status_indication *indication,
2909 int len)
2910 {
2911 u8 *buf;
2912 const char *type;
2913 int flags, buflen, key_id;
2914 bool pairwise_error, group_error;
2915 struct ndis_80211_auth_request *auth_req;
2916 enum nl80211_key_type key_type;
2917
2918 /* must have at least one array entry */
2919 if (len < offsetof(struct ndis_80211_status_indication, u) +
2920 sizeof(struct ndis_80211_auth_request)) {
2921 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2922 len);
2923 return;
2924 }
2925
2926 buf = (void *)&indication->u.auth_request[0];
2927 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2928
2929 while (buflen >= sizeof(*auth_req)) {
2930 auth_req = (void *)buf;
2931 type = "unknown";
2932 flags = le32_to_cpu(auth_req->flags);
2933 pairwise_error = false;
2934 group_error = false;
2935
2936 if (flags & 0x1)
2937 type = "reauth request";
2938 if (flags & 0x2)
2939 type = "key update request";
2940 if (flags & 0x6) {
2941 pairwise_error = true;
2942 type = "pairwise_error";
2943 }
2944 if (flags & 0xe) {
2945 group_error = true;
2946 type = "group_error";
2947 }
2948
2949 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2950 type, le32_to_cpu(auth_req->flags));
2951
2952 if (pairwise_error) {
2953 key_type = NL80211_KEYTYPE_PAIRWISE;
2954 key_id = -1;
2955
2956 cfg80211_michael_mic_failure(usbdev->net,
2957 auth_req->bssid,
2958 key_type, key_id, NULL,
2959 GFP_KERNEL);
2960 }
2961
2962 if (group_error) {
2963 key_type = NL80211_KEYTYPE_GROUP;
2964 key_id = -1;
2965
2966 cfg80211_michael_mic_failure(usbdev->net,
2967 auth_req->bssid,
2968 key_type, key_id, NULL,
2969 GFP_KERNEL);
2970 }
2971
2972 buflen -= le32_to_cpu(auth_req->length);
2973 buf += le32_to_cpu(auth_req->length);
2974 }
2975 }
2976
2977 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2978 struct ndis_80211_status_indication *indication,
2979 int len)
2980 {
2981 struct ndis_80211_pmkid_cand_list *cand_list;
2982 int list_len, expected_len, i;
2983
2984 if (len < offsetof(struct ndis_80211_status_indication, u) +
2985 sizeof(struct ndis_80211_pmkid_cand_list)) {
2986 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2987 len);
2988 return;
2989 }
2990
2991 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2992 sizeof(struct ndis_80211_pmkid_candidate);
2993 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2994 offsetof(struct ndis_80211_status_indication, u);
2995
2996 if (len < expected_len) {
2997 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2998 len, expected_len);
2999 return;
3000 }
3001
3002 cand_list = &indication->u.cand_list;
3003
3004 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
3005 le32_to_cpu(cand_list->version),
3006 le32_to_cpu(cand_list->num_candidates));
3007
3008 if (le32_to_cpu(cand_list->version) != 1)
3009 return;
3010
3011 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3012 struct ndis_80211_pmkid_candidate *cand =
3013 &cand_list->candidate_list[i];
3014 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3015
3016 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3017 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3018
3019 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3020 preauth, GFP_ATOMIC);
3021 }
3022 }
3023
3024 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3025 struct rndis_indicate *msg, int buflen)
3026 {
3027 struct ndis_80211_status_indication *indication;
3028 unsigned int len, offset;
3029
3030 offset = offsetof(struct rndis_indicate, status) +
3031 le32_to_cpu(msg->offset);
3032 len = le32_to_cpu(msg->length);
3033
3034 if (len < 8) {
3035 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3036 len);
3037 return;
3038 }
3039
3040 if (len > buflen || offset > buflen || offset + len > buflen) {
3041 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3042 offset + len, buflen);
3043 return;
3044 }
3045
3046 indication = (void *)((u8 *)msg + offset);
3047
3048 switch (le32_to_cpu(indication->status_type)) {
3049 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3050 netdev_info(usbdev->net, "radio state indication: %i\n",
3051 le32_to_cpu(indication->u.radio_status));
3052 return;
3053
3054 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3055 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3056 le32_to_cpu(indication->u.media_stream_mode));
3057 return;
3058
3059 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3060 rndis_wlan_auth_indication(usbdev, indication, len);
3061 return;
3062
3063 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3064 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3065 return;
3066
3067 default:
3068 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3069 le32_to_cpu(indication->status_type));
3070 }
3071 }
3072
3073 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3074 {
3075 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3076 struct rndis_indicate *msg = ind;
3077
3078 switch (le32_to_cpu(msg->status)) {
3079 case RNDIS_STATUS_MEDIA_CONNECT:
3080 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3081 /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra
3082 * "media connect" indications which confuses driver
3083 * and userspace to think that device is
3084 * roaming/reassociating when it isn't.
3085 */
3086 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3087 return;
3088 }
3089
3090 usbnet_pause_rx(usbdev);
3091
3092 netdev_info(usbdev->net, "media connect\n");
3093
3094 /* queue work to avoid recursive calls into rndis_command */
3095 set_bit(WORK_LINK_UP, &priv->work_pending);
3096 queue_work(priv->workqueue, &priv->work);
3097 break;
3098
3099 case RNDIS_STATUS_MEDIA_DISCONNECT:
3100 netdev_info(usbdev->net, "media disconnect\n");
3101
3102 /* queue work to avoid recursive calls into rndis_command */
3103 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3104 queue_work(priv->workqueue, &priv->work);
3105 break;
3106
3107 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3108 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3109 break;
3110
3111 default:
3112 netdev_info(usbdev->net, "indication: 0x%08x\n",
3113 le32_to_cpu(msg->status));
3114 break;
3115 }
3116 }
3117
3118 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3119 {
3120 struct {
3121 __le32 num_items;
3122 __le32 items[8];
3123 } networks_supported;
3124 struct ndis_80211_capability *caps;
3125 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3126 int len, retval, i, n;
3127 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3128
3129 /* determine supported modes */
3130 len = sizeof(networks_supported);
3131 retval = rndis_query_oid(usbdev,
3132 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3133 &networks_supported, &len);
3134 if (retval >= 0) {
3135 n = le32_to_cpu(networks_supported.num_items);
3136 if (n > 8)
3137 n = 8;
3138 for (i = 0; i < n; i++) {
3139 switch (le32_to_cpu(networks_supported.items[i])) {
3140 case NDIS_80211_TYPE_FREQ_HOP:
3141 case NDIS_80211_TYPE_DIRECT_SEQ:
3142 priv->caps |= CAP_MODE_80211B;
3143 break;
3144 case NDIS_80211_TYPE_OFDM_A:
3145 priv->caps |= CAP_MODE_80211A;
3146 break;
3147 case NDIS_80211_TYPE_OFDM_G:
3148 priv->caps |= CAP_MODE_80211G;
3149 break;
3150 }
3151 }
3152 }
3153
3154 /* get device 802.11 capabilities, number of PMKIDs */
3155 caps = (struct ndis_80211_capability *)caps_buf;
3156 len = sizeof(caps_buf);
3157 retval = rndis_query_oid(usbdev,
3158 RNDIS_OID_802_11_CAPABILITY,
3159 caps, &len);
3160 if (retval >= 0) {
3161 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3162 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3163 le32_to_cpu(caps->length),
3164 le32_to_cpu(caps->version),
3165 le32_to_cpu(caps->num_pmkids),
3166 le32_to_cpu(caps->num_auth_encr_pair));
3167 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3168 } else
3169 wiphy->max_num_pmkids = 0;
3170
3171 return retval;
3172 }
3173
3174 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3175 {
3176 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3177 enum nl80211_cqm_rssi_threshold_event event;
3178 int thold, hyst, last_event;
3179
3180 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3181 return;
3182 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3183 return;
3184
3185 last_event = priv->last_cqm_event_rssi;
3186 thold = priv->cqm_rssi_thold;
3187 hyst = priv->cqm_rssi_hyst;
3188
3189 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3190 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3191 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3192 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3193 else
3194 return;
3195
3196 priv->last_cqm_event_rssi = rssi;
3197 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3198 }
3199
3200 #define DEVICE_POLLER_JIFFIES (HZ)
3201 static void rndis_device_poller(struct work_struct *work)
3202 {
3203 struct rndis_wlan_private *priv =
3204 container_of(work, struct rndis_wlan_private,
3205 dev_poller_work.work);
3206 struct usbnet *usbdev = priv->usbdev;
3207 __le32 rssi, tmp;
3208 int len, ret, j;
3209 int update_jiffies = DEVICE_POLLER_JIFFIES;
3210 void *buf;
3211
3212 /* Only check/do workaround when connected. Calling is_associated()
3213 * also polls device with rndis_command() and catches for media link
3214 * indications.
3215 */
3216 if (!is_associated(usbdev)) {
3217 /* Workaround bad scanning in BCM4320a devices with active
3218 * background scanning when not associated.
3219 */
3220 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3221 !priv->scan_request) {
3222 /* Get previous scan results */
3223 rndis_check_bssid_list(usbdev, NULL, NULL);
3224
3225 /* Initiate new scan */
3226 rndis_start_bssid_list_scan(usbdev);
3227 }
3228
3229 goto end;
3230 }
3231
3232 len = sizeof(rssi);
3233 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3234 &rssi, &len);
3235 if (ret == 0) {
3236 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3237 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3238 }
3239
3240 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3241 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3242
3243 /* Workaround transfer stalls on poor quality links.
3244 * TODO: find right way to fix these stalls (as stalls do not happen
3245 * with ndiswrapper/windows driver). */
3246 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3247 /* Decrease stats worker interval to catch stalls.
3248 * faster. Faster than 400-500ms causes packet loss,
3249 * Slower doesn't catch stalls fast enough.
3250 */
3251 j = msecs_to_jiffies(priv->param_workaround_interval);
3252 if (j > DEVICE_POLLER_JIFFIES)
3253 j = DEVICE_POLLER_JIFFIES;
3254 else if (j <= 0)
3255 j = 1;
3256 update_jiffies = j;
3257
3258 /* Send scan OID. Use of both OIDs is required to get device
3259 * working.
3260 */
3261 tmp = cpu_to_le32(1);
3262 rndis_set_oid(usbdev,
3263 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3264 &tmp, sizeof(tmp));
3265
3266 len = CONTROL_BUFFER_SIZE;
3267 buf = kmalloc(len, GFP_KERNEL);
3268 if (!buf)
3269 goto end;
3270
3271 rndis_query_oid(usbdev,
3272 RNDIS_OID_802_11_BSSID_LIST,
3273 buf, &len);
3274 kfree(buf);
3275 }
3276
3277 end:
3278 if (update_jiffies >= HZ)
3279 update_jiffies = round_jiffies_relative(update_jiffies);
3280 else {
3281 j = round_jiffies_relative(update_jiffies);
3282 if (abs(j - update_jiffies) <= 10)
3283 update_jiffies = j;
3284 }
3285
3286 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3287 update_jiffies);
3288 }
3289
3290 /*
3291 * driver/device initialization
3292 */
3293 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3294 {
3295 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3296
3297 priv->device_type = device_type;
3298
3299 priv->param_country[0] = modparam_country[0];
3300 priv->param_country[1] = modparam_country[1];
3301 priv->param_country[2] = 0;
3302 priv->param_frameburst = modparam_frameburst;
3303 priv->param_afterburner = modparam_afterburner;
3304 priv->param_power_save = modparam_power_save;
3305 priv->param_power_output = modparam_power_output;
3306 priv->param_roamtrigger = modparam_roamtrigger;
3307 priv->param_roamdelta = modparam_roamdelta;
3308
3309 priv->param_country[0] = toupper(priv->param_country[0]);
3310 priv->param_country[1] = toupper(priv->param_country[1]);
3311 /* doesn't support EU as country code, use FI instead */
3312 if (!strcmp(priv->param_country, "EU"))
3313 strcpy(priv->param_country, "FI");
3314
3315 if (priv->param_power_save < 0)
3316 priv->param_power_save = 0;
3317 else if (priv->param_power_save > 2)
3318 priv->param_power_save = 2;
3319
3320 if (priv->param_power_output < 0)
3321 priv->param_power_output = 0;
3322 else if (priv->param_power_output > 3)
3323 priv->param_power_output = 3;
3324
3325 if (priv->param_roamtrigger < -80)
3326 priv->param_roamtrigger = -80;
3327 else if (priv->param_roamtrigger > -60)
3328 priv->param_roamtrigger = -60;
3329
3330 if (priv->param_roamdelta < 0)
3331 priv->param_roamdelta = 0;
3332 else if (priv->param_roamdelta > 2)
3333 priv->param_roamdelta = 2;
3334
3335 if (modparam_workaround_interval < 0)
3336 priv->param_workaround_interval = 500;
3337 else
3338 priv->param_workaround_interval = modparam_workaround_interval;
3339 }
3340
3341 static int unknown_early_init(struct usbnet *usbdev)
3342 {
3343 /* copy module parameters for unknown so that iwconfig reports txpower
3344 * and workaround parameter is copied to private structure correctly.
3345 */
3346 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3347
3348 /* This is unknown device, so do not try set configuration parameters.
3349 */
3350
3351 return 0;
3352 }
3353
3354 static int bcm4320a_early_init(struct usbnet *usbdev)
3355 {
3356 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3357 * and workaround parameter is copied to private structure correctly.
3358 */
3359 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3360
3361 /* bcm4320a doesn't handle configuration parameters well. Try
3362 * set any and you get partially zeroed mac and broken device.
3363 */
3364
3365 return 0;
3366 }
3367
3368 static int bcm4320b_early_init(struct usbnet *usbdev)
3369 {
3370 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3371 char buf[8];
3372
3373 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3374
3375 /* Early initialization settings, setting these won't have effect
3376 * if called after generic_rndis_bind().
3377 */
3378
3379 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3380 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3381 priv->param_frameburst ? "1" : "0");
3382 rndis_set_config_parameter_str(usbdev, "Afterburner",
3383 priv->param_afterburner ? "1" : "0");
3384 sprintf(buf, "%d", priv->param_power_save);
3385 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3386 sprintf(buf, "%d", priv->param_power_output);
3387 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3388 sprintf(buf, "%d", priv->param_roamtrigger);
3389 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3390 sprintf(buf, "%d", priv->param_roamdelta);
3391 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3392
3393 return 0;
3394 }
3395
3396 /* same as rndis_netdev_ops but with local multicast handler */
3397 static const struct net_device_ops rndis_wlan_netdev_ops = {
3398 .ndo_open = usbnet_open,
3399 .ndo_stop = usbnet_stop,
3400 .ndo_start_xmit = usbnet_start_xmit,
3401 .ndo_tx_timeout = usbnet_tx_timeout,
3402 .ndo_set_mac_address = eth_mac_addr,
3403 .ndo_validate_addr = eth_validate_addr,
3404 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3405 };
3406
3407 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3408 {
3409 struct wiphy *wiphy;
3410 struct rndis_wlan_private *priv;
3411 int retval, len;
3412 __le32 tmp;
3413
3414 /* allocate wiphy and rndis private data
3415 * NOTE: We only support a single virtual interface, so wiphy
3416 * and wireless_dev are somewhat synonymous for this device.
3417 */
3418 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3419 if (!wiphy)
3420 return -ENOMEM;
3421
3422 priv = wiphy_priv(wiphy);
3423 usbdev->net->ieee80211_ptr = &priv->wdev;
3424 priv->wdev.wiphy = wiphy;
3425 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3426
3427 /* These have to be initialized before calling generic_rndis_bind().
3428 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3429 */
3430 usbdev->driver_priv = priv;
3431 priv->usbdev = usbdev;
3432
3433 mutex_init(&priv->command_lock);
3434
3435 /* because rndis_command() sleeps we need to use workqueue */
3436 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3437 INIT_WORK(&priv->work, rndis_wlan_worker);
3438 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3439 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3440
3441 /* try bind rndis_host */
3442 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3443 if (retval < 0)
3444 goto fail;
3445
3446 /* generic_rndis_bind set packet filter to multicast_all+
3447 * promisc mode which doesn't work well for our devices (device
3448 * picks up rssi to closest station instead of to access point).
3449 *
3450 * rndis_host wants to avoid all OID as much as possible
3451 * so do promisc/multicast handling in rndis_wlan.
3452 */
3453 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3454
3455 tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3456 retval = rndis_set_oid(usbdev,
3457 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3458 &tmp, sizeof(tmp));
3459
3460 len = sizeof(tmp);
3461 retval = rndis_query_oid(usbdev,
3462 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3463 &tmp, &len);
3464 priv->multicast_size = le32_to_cpu(tmp);
3465 if (retval < 0 || priv->multicast_size < 0)
3466 priv->multicast_size = 0;
3467 if (priv->multicast_size > 0)
3468 usbdev->net->flags |= IFF_MULTICAST;
3469 else
3470 usbdev->net->flags &= ~IFF_MULTICAST;
3471
3472 /* fill-out wiphy structure and register w/ cfg80211 */
3473 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3474 wiphy->privid = rndis_wiphy_privid;
3475 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3476 | BIT(NL80211_IFTYPE_ADHOC);
3477 wiphy->max_scan_ssids = 1;
3478
3479 /* TODO: fill-out band/encr information based on priv->caps */
3480 rndis_wlan_get_caps(usbdev, wiphy);
3481
3482 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3483 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3484 priv->band.channels = priv->channels;
3485 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3486 priv->band.bitrates = priv->rates;
3487 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3488 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3489 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3490
3491 memcpy(priv->cipher_suites, rndis_cipher_suites,
3492 sizeof(rndis_cipher_suites));
3493 wiphy->cipher_suites = priv->cipher_suites;
3494 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3495
3496 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3497
3498 if (wiphy_register(wiphy)) {
3499 retval = -ENODEV;
3500 goto fail;
3501 }
3502
3503 set_default_iw_params(usbdev);
3504
3505 priv->power_mode = -1;
3506
3507 /* set default rts/frag */
3508 rndis_set_wiphy_params(wiphy,
3509 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3510
3511 /* turn radio off on init */
3512 priv->radio_on = false;
3513 disassociate(usbdev, false);
3514 netif_carrier_off(usbdev->net);
3515
3516 return 0;
3517
3518 fail:
3519 cancel_delayed_work_sync(&priv->dev_poller_work);
3520 cancel_delayed_work_sync(&priv->scan_work);
3521 cancel_work_sync(&priv->work);
3522 flush_workqueue(priv->workqueue);
3523 destroy_workqueue(priv->workqueue);
3524
3525 wiphy_free(wiphy);
3526 return retval;
3527 }
3528
3529 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3530 {
3531 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3532
3533 /* turn radio off */
3534 disassociate(usbdev, false);
3535
3536 cancel_delayed_work_sync(&priv->dev_poller_work);
3537 cancel_delayed_work_sync(&priv->scan_work);
3538 cancel_work_sync(&priv->work);
3539 flush_workqueue(priv->workqueue);
3540 destroy_workqueue(priv->workqueue);
3541
3542 rndis_unbind(usbdev, intf);
3543
3544 wiphy_unregister(priv->wdev.wiphy);
3545 wiphy_free(priv->wdev.wiphy);
3546 }
3547
3548 static int rndis_wlan_reset(struct usbnet *usbdev)
3549 {
3550 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3551 int retval;
3552
3553 netdev_dbg(usbdev->net, "%s()\n", __func__);
3554
3555 retval = rndis_reset(usbdev);
3556 if (retval)
3557 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3558
3559 /* rndis_reset cleared multicast list, so restore here.
3560 (set_multicast_list() also turns on current packet filter) */
3561 set_multicast_list(usbdev);
3562
3563 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3564 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3565
3566 return deauthenticate(usbdev);
3567 }
3568
3569 static int rndis_wlan_stop(struct usbnet *usbdev)
3570 {
3571 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3572 int retval;
3573 __le32 filter;
3574
3575 netdev_dbg(usbdev->net, "%s()\n", __func__);
3576
3577 retval = disassociate(usbdev, false);
3578
3579 priv->work_pending = 0;
3580 cancel_delayed_work_sync(&priv->dev_poller_work);
3581 cancel_delayed_work_sync(&priv->scan_work);
3582 cancel_work_sync(&priv->work);
3583 flush_workqueue(priv->workqueue);
3584
3585 if (priv->scan_request) {
3586 cfg80211_scan_done(priv->scan_request, true);
3587 priv->scan_request = NULL;
3588 }
3589
3590 /* Set current packet filter zero to block receiving data packets from
3591 device. */
3592 filter = 0;
3593 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3594 sizeof(filter));
3595
3596 return retval;
3597 }
3598
3599 static const struct driver_info bcm4320b_info = {
3600 .description = "Wireless RNDIS device, BCM4320b based",
3601 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3602 FLAG_AVOID_UNLINK_URBS,
3603 .bind = rndis_wlan_bind,
3604 .unbind = rndis_wlan_unbind,
3605 .status = rndis_status,
3606 .rx_fixup = rndis_rx_fixup,
3607 .tx_fixup = rndis_tx_fixup,
3608 .reset = rndis_wlan_reset,
3609 .stop = rndis_wlan_stop,
3610 .early_init = bcm4320b_early_init,
3611 .indication = rndis_wlan_indication,
3612 };
3613
3614 static const struct driver_info bcm4320a_info = {
3615 .description = "Wireless RNDIS device, BCM4320a based",
3616 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3617 FLAG_AVOID_UNLINK_URBS,
3618 .bind = rndis_wlan_bind,
3619 .unbind = rndis_wlan_unbind,
3620 .status = rndis_status,
3621 .rx_fixup = rndis_rx_fixup,
3622 .tx_fixup = rndis_tx_fixup,
3623 .reset = rndis_wlan_reset,
3624 .stop = rndis_wlan_stop,
3625 .early_init = bcm4320a_early_init,
3626 .indication = rndis_wlan_indication,
3627 };
3628
3629 static const struct driver_info rndis_wlan_info = {
3630 .description = "Wireless RNDIS device",
3631 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3632 FLAG_AVOID_UNLINK_URBS,
3633 .bind = rndis_wlan_bind,
3634 .unbind = rndis_wlan_unbind,
3635 .status = rndis_status,
3636 .rx_fixup = rndis_rx_fixup,
3637 .tx_fixup = rndis_tx_fixup,
3638 .reset = rndis_wlan_reset,
3639 .stop = rndis_wlan_stop,
3640 .early_init = unknown_early_init,
3641 .indication = rndis_wlan_indication,
3642 };
3643
3644 /*-------------------------------------------------------------------------*/
3645
3646 static const struct usb_device_id products [] = {
3647 #define RNDIS_MASTER_INTERFACE \
3648 .bInterfaceClass = USB_CLASS_COMM, \
3649 .bInterfaceSubClass = 2 /* ACM */, \
3650 .bInterfaceProtocol = 0x0ff
3651
3652 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3653 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3654 */
3655 {
3656 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3657 | USB_DEVICE_ID_MATCH_DEVICE,
3658 .idVendor = 0x0411,
3659 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3660 RNDIS_MASTER_INTERFACE,
3661 .driver_info = (unsigned long) &bcm4320b_info,
3662 }, {
3663 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3664 | USB_DEVICE_ID_MATCH_DEVICE,
3665 .idVendor = 0x0baf,
3666 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3667 RNDIS_MASTER_INTERFACE,
3668 .driver_info = (unsigned long) &bcm4320b_info,
3669 }, {
3670 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3671 | USB_DEVICE_ID_MATCH_DEVICE,
3672 .idVendor = 0x050d,
3673 .idProduct = 0x011b, /* Belkin F5D7051 */
3674 RNDIS_MASTER_INTERFACE,
3675 .driver_info = (unsigned long) &bcm4320b_info,
3676 }, {
3677 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3678 | USB_DEVICE_ID_MATCH_DEVICE,
3679 .idVendor = 0x1799, /* Belkin has two vendor ids */
3680 .idProduct = 0x011b, /* Belkin F5D7051 */
3681 RNDIS_MASTER_INTERFACE,
3682 .driver_info = (unsigned long) &bcm4320b_info,
3683 }, {
3684 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3685 | USB_DEVICE_ID_MATCH_DEVICE,
3686 .idVendor = 0x13b1,
3687 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3688 RNDIS_MASTER_INTERFACE,
3689 .driver_info = (unsigned long) &bcm4320b_info,
3690 }, {
3691 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3692 | USB_DEVICE_ID_MATCH_DEVICE,
3693 .idVendor = 0x13b1,
3694 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3695 RNDIS_MASTER_INTERFACE,
3696 .driver_info = (unsigned long) &bcm4320b_info,
3697 }, {
3698 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3699 | USB_DEVICE_ID_MATCH_DEVICE,
3700 .idVendor = 0x0b05,
3701 .idProduct = 0x1717, /* Asus WL169gE */
3702 RNDIS_MASTER_INTERFACE,
3703 .driver_info = (unsigned long) &bcm4320b_info,
3704 }, {
3705 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3706 | USB_DEVICE_ID_MATCH_DEVICE,
3707 .idVendor = 0x0a5c,
3708 .idProduct = 0xd11b, /* Eminent EM4045 */
3709 RNDIS_MASTER_INTERFACE,
3710 .driver_info = (unsigned long) &bcm4320b_info,
3711 }, {
3712 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3713 | USB_DEVICE_ID_MATCH_DEVICE,
3714 .idVendor = 0x1690,
3715 .idProduct = 0x0715, /* BT Voyager 1055 */
3716 RNDIS_MASTER_INTERFACE,
3717 .driver_info = (unsigned long) &bcm4320b_info,
3718 },
3719 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3720 * parameters available, hardware probably contain older firmware version with
3721 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3722 */
3723 {
3724 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3725 | USB_DEVICE_ID_MATCH_DEVICE,
3726 .idVendor = 0x13b1,
3727 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3728 RNDIS_MASTER_INTERFACE,
3729 .driver_info = (unsigned long) &bcm4320a_info,
3730 }, {
3731 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3732 | USB_DEVICE_ID_MATCH_DEVICE,
3733 .idVendor = 0x0baf,
3734 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3735 RNDIS_MASTER_INTERFACE,
3736 .driver_info = (unsigned long) &bcm4320a_info,
3737 }, {
3738 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3739 | USB_DEVICE_ID_MATCH_DEVICE,
3740 .idVendor = 0x0411,
3741 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3742 RNDIS_MASTER_INTERFACE,
3743 .driver_info = (unsigned long) &bcm4320a_info,
3744 },
3745 /* Generic Wireless RNDIS devices that we don't have exact
3746 * idVendor/idProduct/chip yet.
3747 */
3748 {
3749 /* RNDIS is MSFT's un-official variant of CDC ACM */
3750 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3751 .driver_info = (unsigned long) &rndis_wlan_info,
3752 }, {
3753 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3754 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3755 .driver_info = (unsigned long) &rndis_wlan_info,
3756 },
3757 { }, // END
3758 };
3759 MODULE_DEVICE_TABLE(usb, products);
3760
3761 static struct usb_driver rndis_wlan_driver = {
3762 .name = "rndis_wlan",
3763 .id_table = products,
3764 .probe = usbnet_probe,
3765 .disconnect = usbnet_disconnect,
3766 .suspend = usbnet_suspend,
3767 .resume = usbnet_resume,
3768 };
3769
3770 module_usb_driver(rndis_wlan_driver);
3771
3772 MODULE_AUTHOR("Bjorge Dijkstra");
3773 MODULE_AUTHOR("Jussi Kivilinna");
3774 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3775 MODULE_LICENSE("GPL");
3776
Linux kernel - Deliverables
This page took 0.114521 seconds and 5 git commands to generate.