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rndis_wlan: remove set_channel cfg80211 hook
[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
92 /* various RNDIS OID defs */
93 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
94 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
95
96 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
97 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
98 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
99 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
100 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
101
102 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
103 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
104 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
105
106 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
107 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
108 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
109 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
110 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
111 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
112 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
113 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
114 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
115 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
116 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
117 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
118 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
119 #define OID_802_11_CAPABILITY cpu_to_le32(0x0d010122)
120 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
121 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
122 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
123 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
124 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
125 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
126 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
127 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
128 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
129 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
130 #define OID_802_11_POWER_MODE cpu_to_le32(0x0d010216)
131 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
132
133
134 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
135 #define WL_NOISE -96 /* typical noise level in dBm */
136 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
137
138
139 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
140 * based on wireless rndis) has default txpower of 13dBm.
141 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
142 * 100% : 20 mW ~ 13dBm
143 * 75% : 15 mW ~ 12dBm
144 * 50% : 10 mW ~ 10dBm
145 * 25% : 5 mW ~ 7dBm
146 */
147 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
148 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
149 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
150 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
151
152
153 /* codes for "status" field of completion messages */
154 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
155 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
156
157
158 /* Known device types */
159 #define RNDIS_UNKNOWN 0
160 #define RNDIS_BCM4320A 1
161 #define RNDIS_BCM4320B 2
162
163
164 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
165 * slightly modified for datatype endianess, etc
166 */
167 #define NDIS_802_11_LENGTH_SSID 32
168 #define NDIS_802_11_LENGTH_RATES 8
169 #define NDIS_802_11_LENGTH_RATES_EX 16
170
171 enum ndis_80211_net_type {
172 NDIS_80211_TYPE_FREQ_HOP,
173 NDIS_80211_TYPE_DIRECT_SEQ,
174 NDIS_80211_TYPE_OFDM_A,
175 NDIS_80211_TYPE_OFDM_G
176 };
177
178 enum ndis_80211_net_infra {
179 NDIS_80211_INFRA_ADHOC,
180 NDIS_80211_INFRA_INFRA,
181 NDIS_80211_INFRA_AUTO_UNKNOWN
182 };
183
184 enum ndis_80211_auth_mode {
185 NDIS_80211_AUTH_OPEN,
186 NDIS_80211_AUTH_SHARED,
187 NDIS_80211_AUTH_AUTO_SWITCH,
188 NDIS_80211_AUTH_WPA,
189 NDIS_80211_AUTH_WPA_PSK,
190 NDIS_80211_AUTH_WPA_NONE,
191 NDIS_80211_AUTH_WPA2,
192 NDIS_80211_AUTH_WPA2_PSK
193 };
194
195 enum ndis_80211_encr_status {
196 NDIS_80211_ENCR_WEP_ENABLED,
197 NDIS_80211_ENCR_DISABLED,
198 NDIS_80211_ENCR_WEP_KEY_ABSENT,
199 NDIS_80211_ENCR_NOT_SUPPORTED,
200 NDIS_80211_ENCR_TKIP_ENABLED,
201 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
202 NDIS_80211_ENCR_CCMP_ENABLED,
203 NDIS_80211_ENCR_CCMP_KEY_ABSENT
204 };
205
206 enum ndis_80211_priv_filter {
207 NDIS_80211_PRIV_ACCEPT_ALL,
208 NDIS_80211_PRIV_8021X_WEP
209 };
210
211 enum ndis_80211_status_type {
212 NDIS_80211_STATUSTYPE_AUTHENTICATION,
213 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
214 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
215 NDIS_80211_STATUSTYPE_RADIOSTATE,
216 };
217
218 enum ndis_80211_media_stream_mode {
219 NDIS_80211_MEDIA_STREAM_OFF,
220 NDIS_80211_MEDIA_STREAM_ON
221 };
222
223 enum ndis_80211_radio_status {
224 NDIS_80211_RADIO_STATUS_ON,
225 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
226 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
227 };
228
229 enum ndis_80211_addkey_bits {
230 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
231 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
232 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
233 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
234 };
235
236 enum ndis_80211_addwep_bits {
237 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
238 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
239 };
240
241 enum ndis_80211_power_mode {
242 NDIS_80211_POWER_MODE_CAM,
243 NDIS_80211_POWER_MODE_MAX_PSP,
244 NDIS_80211_POWER_MODE_FAST_PSP,
245 };
246
247 enum ndis_80211_pmkid_cand_list_flag_bits {
248 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
249 };
250
251 struct ndis_80211_auth_request {
252 __le32 length;
253 u8 bssid[6];
254 u8 padding[2];
255 __le32 flags;
256 } __packed;
257
258 struct ndis_80211_pmkid_candidate {
259 u8 bssid[6];
260 u8 padding[2];
261 __le32 flags;
262 } __packed;
263
264 struct ndis_80211_pmkid_cand_list {
265 __le32 version;
266 __le32 num_candidates;
267 struct ndis_80211_pmkid_candidate candidate_list[0];
268 } __packed;
269
270 struct ndis_80211_status_indication {
271 __le32 status_type;
272 union {
273 __le32 media_stream_mode;
274 __le32 radio_status;
275 struct ndis_80211_auth_request auth_request[0];
276 struct ndis_80211_pmkid_cand_list cand_list;
277 } u;
278 } __packed;
279
280 struct ndis_80211_ssid {
281 __le32 length;
282 u8 essid[NDIS_802_11_LENGTH_SSID];
283 } __packed;
284
285 struct ndis_80211_conf_freq_hop {
286 __le32 length;
287 __le32 hop_pattern;
288 __le32 hop_set;
289 __le32 dwell_time;
290 } __packed;
291
292 struct ndis_80211_conf {
293 __le32 length;
294 __le32 beacon_period;
295 __le32 atim_window;
296 __le32 ds_config;
297 struct ndis_80211_conf_freq_hop fh_config;
298 } __packed;
299
300 struct ndis_80211_bssid_ex {
301 __le32 length;
302 u8 mac[6];
303 u8 padding[2];
304 struct ndis_80211_ssid ssid;
305 __le32 privacy;
306 __le32 rssi;
307 __le32 net_type;
308 struct ndis_80211_conf config;
309 __le32 net_infra;
310 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
311 __le32 ie_length;
312 u8 ies[0];
313 } __packed;
314
315 struct ndis_80211_bssid_list_ex {
316 __le32 num_items;
317 struct ndis_80211_bssid_ex bssid[0];
318 } __packed;
319
320 struct ndis_80211_fixed_ies {
321 u8 timestamp[8];
322 __le16 beacon_interval;
323 __le16 capabilities;
324 } __packed;
325
326 struct ndis_80211_wep_key {
327 __le32 size;
328 __le32 index;
329 __le32 length;
330 u8 material[32];
331 } __packed;
332
333 struct ndis_80211_key {
334 __le32 size;
335 __le32 index;
336 __le32 length;
337 u8 bssid[6];
338 u8 padding[6];
339 u8 rsc[8];
340 u8 material[32];
341 } __packed;
342
343 struct ndis_80211_remove_key {
344 __le32 size;
345 __le32 index;
346 u8 bssid[6];
347 u8 padding[2];
348 } __packed;
349
350 struct ndis_config_param {
351 __le32 name_offs;
352 __le32 name_length;
353 __le32 type;
354 __le32 value_offs;
355 __le32 value_length;
356 } __packed;
357
358 struct ndis_80211_assoc_info {
359 __le32 length;
360 __le16 req_ies;
361 struct req_ie {
362 __le16 capa;
363 __le16 listen_interval;
364 u8 cur_ap_address[6];
365 } req_ie;
366 __le32 req_ie_length;
367 __le32 offset_req_ies;
368 __le16 resp_ies;
369 struct resp_ie {
370 __le16 capa;
371 __le16 status_code;
372 __le16 assoc_id;
373 } resp_ie;
374 __le32 resp_ie_length;
375 __le32 offset_resp_ies;
376 } __packed;
377
378 struct ndis_80211_auth_encr_pair {
379 __le32 auth_mode;
380 __le32 encr_mode;
381 } __packed;
382
383 struct ndis_80211_capability {
384 __le32 length;
385 __le32 version;
386 __le32 num_pmkids;
387 __le32 num_auth_encr_pair;
388 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
389 } __packed;
390
391 struct ndis_80211_bssid_info {
392 u8 bssid[6];
393 u8 pmkid[16];
394 } __packed;
395
396 struct ndis_80211_pmkid {
397 __le32 length;
398 __le32 bssid_info_count;
399 struct ndis_80211_bssid_info bssid_info[0];
400 } __packed;
401
402 /*
403 * private data
404 */
405 #define CAP_MODE_80211A 1
406 #define CAP_MODE_80211B 2
407 #define CAP_MODE_80211G 4
408 #define CAP_MODE_MASK 7
409
410 #define WORK_LINK_UP (1<<0)
411 #define WORK_LINK_DOWN (1<<1)
412 #define WORK_SET_MULTICAST_LIST (1<<2)
413
414 #define RNDIS_WLAN_ALG_NONE 0
415 #define RNDIS_WLAN_ALG_WEP (1<<0)
416 #define RNDIS_WLAN_ALG_TKIP (1<<1)
417 #define RNDIS_WLAN_ALG_CCMP (1<<2)
418
419 #define RNDIS_WLAN_NUM_KEYS 4
420 #define RNDIS_WLAN_KEY_MGMT_NONE 0
421 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
422 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
423
424 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
425
426 static const struct ieee80211_channel rndis_channels[] = {
427 { .center_freq = 2412 },
428 { .center_freq = 2417 },
429 { .center_freq = 2422 },
430 { .center_freq = 2427 },
431 { .center_freq = 2432 },
432 { .center_freq = 2437 },
433 { .center_freq = 2442 },
434 { .center_freq = 2447 },
435 { .center_freq = 2452 },
436 { .center_freq = 2457 },
437 { .center_freq = 2462 },
438 { .center_freq = 2467 },
439 { .center_freq = 2472 },
440 { .center_freq = 2484 },
441 };
442
443 static const struct ieee80211_rate rndis_rates[] = {
444 { .bitrate = 10 },
445 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
446 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
447 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
448 { .bitrate = 60 },
449 { .bitrate = 90 },
450 { .bitrate = 120 },
451 { .bitrate = 180 },
452 { .bitrate = 240 },
453 { .bitrate = 360 },
454 { .bitrate = 480 },
455 { .bitrate = 540 }
456 };
457
458 static const u32 rndis_cipher_suites[] = {
459 WLAN_CIPHER_SUITE_WEP40,
460 WLAN_CIPHER_SUITE_WEP104,
461 WLAN_CIPHER_SUITE_TKIP,
462 WLAN_CIPHER_SUITE_CCMP,
463 };
464
465 struct rndis_wlan_encr_key {
466 int len;
467 u32 cipher;
468 u8 material[32];
469 u8 bssid[ETH_ALEN];
470 bool pairwise;
471 bool tx_key;
472 };
473
474 /* RNDIS device private data */
475 struct rndis_wlan_private {
476 struct usbnet *usbdev;
477
478 struct wireless_dev wdev;
479
480 struct cfg80211_scan_request *scan_request;
481
482 struct workqueue_struct *workqueue;
483 struct delayed_work dev_poller_work;
484 struct delayed_work scan_work;
485 struct work_struct work;
486 struct mutex command_lock;
487 unsigned long work_pending;
488 int last_qual;
489 s32 cqm_rssi_thold;
490 u32 cqm_rssi_hyst;
491 int last_cqm_event_rssi;
492
493 struct ieee80211_supported_band band;
494 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
495 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
496 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
497
498 int device_type;
499 int caps;
500 int multicast_size;
501
502 /* module parameters */
503 char param_country[4];
504 int param_frameburst;
505 int param_afterburner;
506 int param_power_save;
507 int param_power_output;
508 int param_roamtrigger;
509 int param_roamdelta;
510 u32 param_workaround_interval;
511
512 /* hardware state */
513 bool radio_on;
514 int power_mode;
515 int infra_mode;
516 bool connected;
517 u8 bssid[ETH_ALEN];
518 __le32 current_command_oid;
519
520 /* encryption stuff */
521 u8 encr_tx_key_index;
522 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
523 int wpa_version;
524
525 u8 command_buffer[COMMAND_BUFFER_SIZE];
526 };
527
528 /*
529 * cfg80211 ops
530 */
531 static int rndis_change_virtual_intf(struct wiphy *wiphy,
532 struct net_device *dev,
533 enum nl80211_iftype type, u32 *flags,
534 struct vif_params *params);
535
536 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
537 struct cfg80211_scan_request *request);
538
539 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
540
541 static int rndis_set_tx_power(struct wiphy *wiphy,
542 enum nl80211_tx_power_setting type,
543 int mbm);
544 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
545
546 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
547 struct cfg80211_connect_params *sme);
548
549 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
550 u16 reason_code);
551
552 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
553 struct cfg80211_ibss_params *params);
554
555 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
556
557 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
558 u8 key_index, bool pairwise, const u8 *mac_addr,
559 struct key_params *params);
560
561 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
562 u8 key_index, bool pairwise, const u8 *mac_addr);
563
564 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
565 u8 key_index, bool unicast, bool multicast);
566
567 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
568 u8 *mac, struct station_info *sinfo);
569
570 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
571 int idx, u8 *mac, struct station_info *sinfo);
572
573 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
574 struct cfg80211_pmksa *pmksa);
575
576 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
577 struct cfg80211_pmksa *pmksa);
578
579 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
580
581 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
582 bool enabled, int timeout);
583
584 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
585 struct net_device *dev,
586 s32 rssi_thold, u32 rssi_hyst);
587
588 static const struct cfg80211_ops rndis_config_ops = {
589 .change_virtual_intf = rndis_change_virtual_intf,
590 .scan = rndis_scan,
591 .set_wiphy_params = rndis_set_wiphy_params,
592 .set_tx_power = rndis_set_tx_power,
593 .get_tx_power = rndis_get_tx_power,
594 .connect = rndis_connect,
595 .disconnect = rndis_disconnect,
596 .join_ibss = rndis_join_ibss,
597 .leave_ibss = rndis_leave_ibss,
598 .add_key = rndis_add_key,
599 .del_key = rndis_del_key,
600 .set_default_key = rndis_set_default_key,
601 .get_station = rndis_get_station,
602 .dump_station = rndis_dump_station,
603 .set_pmksa = rndis_set_pmksa,
604 .del_pmksa = rndis_del_pmksa,
605 .flush_pmksa = rndis_flush_pmksa,
606 .set_power_mgmt = rndis_set_power_mgmt,
607 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
608 };
609
610 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
611
612
613 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
614 {
615 return (struct rndis_wlan_private *)dev->driver_priv;
616 }
617
618 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
619 {
620 switch (priv->param_power_output) {
621 default:
622 case 3:
623 return BCM4320_DEFAULT_TXPOWER_DBM_100;
624 case 2:
625 return BCM4320_DEFAULT_TXPOWER_DBM_75;
626 case 1:
627 return BCM4320_DEFAULT_TXPOWER_DBM_50;
628 case 0:
629 return BCM4320_DEFAULT_TXPOWER_DBM_25;
630 }
631 }
632
633 static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
634 {
635 int cipher = priv->encr_keys[idx].cipher;
636
637 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
638 cipher == WLAN_CIPHER_SUITE_TKIP);
639 }
640
641 static int rndis_cipher_to_alg(u32 cipher)
642 {
643 switch (cipher) {
644 default:
645 return RNDIS_WLAN_ALG_NONE;
646 case WLAN_CIPHER_SUITE_WEP40:
647 case WLAN_CIPHER_SUITE_WEP104:
648 return RNDIS_WLAN_ALG_WEP;
649 case WLAN_CIPHER_SUITE_TKIP:
650 return RNDIS_WLAN_ALG_TKIP;
651 case WLAN_CIPHER_SUITE_CCMP:
652 return RNDIS_WLAN_ALG_CCMP;
653 }
654 }
655
656 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
657 {
658 switch (akm_suite) {
659 default:
660 return RNDIS_WLAN_KEY_MGMT_NONE;
661 case WLAN_AKM_SUITE_8021X:
662 return RNDIS_WLAN_KEY_MGMT_802_1X;
663 case WLAN_AKM_SUITE_PSK:
664 return RNDIS_WLAN_KEY_MGMT_PSK;
665 }
666 }
667
668 #ifdef DEBUG
669 static const char *oid_to_string(__le32 oid)
670 {
671 switch (oid) {
672 #define OID_STR(oid) case oid: return(#oid)
673 /* from rndis_host.h */
674 OID_STR(OID_802_3_PERMANENT_ADDRESS);
675 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
676 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
677 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
678
679 /* from rndis_wlan.c */
680 OID_STR(OID_GEN_LINK_SPEED);
681 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
682
683 OID_STR(OID_GEN_XMIT_OK);
684 OID_STR(OID_GEN_RCV_OK);
685 OID_STR(OID_GEN_XMIT_ERROR);
686 OID_STR(OID_GEN_RCV_ERROR);
687 OID_STR(OID_GEN_RCV_NO_BUFFER);
688
689 OID_STR(OID_802_3_CURRENT_ADDRESS);
690 OID_STR(OID_802_3_MULTICAST_LIST);
691 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
692
693 OID_STR(OID_802_11_BSSID);
694 OID_STR(OID_802_11_SSID);
695 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
696 OID_STR(OID_802_11_ADD_WEP);
697 OID_STR(OID_802_11_REMOVE_WEP);
698 OID_STR(OID_802_11_DISASSOCIATE);
699 OID_STR(OID_802_11_AUTHENTICATION_MODE);
700 OID_STR(OID_802_11_PRIVACY_FILTER);
701 OID_STR(OID_802_11_BSSID_LIST_SCAN);
702 OID_STR(OID_802_11_ENCRYPTION_STATUS);
703 OID_STR(OID_802_11_ADD_KEY);
704 OID_STR(OID_802_11_REMOVE_KEY);
705 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
706 OID_STR(OID_802_11_CAPABILITY);
707 OID_STR(OID_802_11_PMKID);
708 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
709 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
710 OID_STR(OID_802_11_TX_POWER_LEVEL);
711 OID_STR(OID_802_11_RSSI);
712 OID_STR(OID_802_11_RSSI_TRIGGER);
713 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
714 OID_STR(OID_802_11_RTS_THRESHOLD);
715 OID_STR(OID_802_11_SUPPORTED_RATES);
716 OID_STR(OID_802_11_CONFIGURATION);
717 OID_STR(OID_802_11_POWER_MODE);
718 OID_STR(OID_802_11_BSSID_LIST);
719 #undef OID_STR
720 }
721
722 return "?";
723 }
724 #else
725 static const char *oid_to_string(__le32 oid)
726 {
727 return "?";
728 }
729 #endif
730
731 /* translate error code */
732 static int rndis_error_status(__le32 rndis_status)
733 {
734 int ret = -EINVAL;
735 switch (rndis_status) {
736 case RNDIS_STATUS_SUCCESS:
737 ret = 0;
738 break;
739 case RNDIS_STATUS_FAILURE:
740 case RNDIS_STATUS_INVALID_DATA:
741 ret = -EINVAL;
742 break;
743 case RNDIS_STATUS_NOT_SUPPORTED:
744 ret = -EOPNOTSUPP;
745 break;
746 case RNDIS_STATUS_ADAPTER_NOT_READY:
747 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
748 ret = -EBUSY;
749 break;
750 }
751 return ret;
752 }
753
754 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
755 {
756 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
757 union {
758 void *buf;
759 struct rndis_msg_hdr *header;
760 struct rndis_query *get;
761 struct rndis_query_c *get_c;
762 } u;
763 int ret, buflen;
764 int resplen, respoffs, copylen;
765
766 buflen = *len + sizeof(*u.get);
767 if (buflen < CONTROL_BUFFER_SIZE)
768 buflen = CONTROL_BUFFER_SIZE;
769
770 if (buflen > COMMAND_BUFFER_SIZE) {
771 u.buf = kmalloc(buflen, GFP_KERNEL);
772 if (!u.buf)
773 return -ENOMEM;
774 } else {
775 u.buf = priv->command_buffer;
776 }
777
778 mutex_lock(&priv->command_lock);
779
780 memset(u.get, 0, sizeof *u.get);
781 u.get->msg_type = RNDIS_MSG_QUERY;
782 u.get->msg_len = cpu_to_le32(sizeof *u.get);
783 u.get->oid = oid;
784
785 priv->current_command_oid = oid;
786 ret = rndis_command(dev, u.header, buflen);
787 priv->current_command_oid = 0;
788 if (ret < 0)
789 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
790 __func__, oid_to_string(oid), ret,
791 le32_to_cpu(u.get_c->status));
792
793 if (ret == 0) {
794 resplen = le32_to_cpu(u.get_c->len);
795 respoffs = le32_to_cpu(u.get_c->offset) + 8;
796
797 if (respoffs > buflen) {
798 /* Device returned data offset outside buffer, error. */
799 netdev_dbg(dev->net, "%s(%s): received invalid "
800 "data offset: %d > %d\n", __func__,
801 oid_to_string(oid), respoffs, buflen);
802
803 ret = -EINVAL;
804 goto exit_unlock;
805 }
806
807 if ((resplen + respoffs) > buflen) {
808 /* Device would have returned more data if buffer would
809 * have been big enough. Copy just the bits that we got.
810 */
811 copylen = buflen - respoffs;
812 } else {
813 copylen = resplen;
814 }
815
816 if (copylen > *len)
817 copylen = *len;
818
819 memcpy(data, u.buf + respoffs, copylen);
820
821 *len = resplen;
822
823 ret = rndis_error_status(u.get_c->status);
824 if (ret < 0)
825 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
826 __func__, oid_to_string(oid),
827 le32_to_cpu(u.get_c->status), ret);
828 }
829
830 exit_unlock:
831 mutex_unlock(&priv->command_lock);
832
833 if (u.buf != priv->command_buffer)
834 kfree(u.buf);
835 return ret;
836 }
837
838 static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
839 int len)
840 {
841 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
842 union {
843 void *buf;
844 struct rndis_msg_hdr *header;
845 struct rndis_set *set;
846 struct rndis_set_c *set_c;
847 } u;
848 int ret, buflen;
849
850 buflen = len + sizeof(*u.set);
851 if (buflen < CONTROL_BUFFER_SIZE)
852 buflen = CONTROL_BUFFER_SIZE;
853
854 if (buflen > COMMAND_BUFFER_SIZE) {
855 u.buf = kmalloc(buflen, GFP_KERNEL);
856 if (!u.buf)
857 return -ENOMEM;
858 } else {
859 u.buf = priv->command_buffer;
860 }
861
862 mutex_lock(&priv->command_lock);
863
864 memset(u.set, 0, sizeof *u.set);
865 u.set->msg_type = RNDIS_MSG_SET;
866 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
867 u.set->oid = oid;
868 u.set->len = cpu_to_le32(len);
869 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
870 u.set->handle = cpu_to_le32(0);
871 memcpy(u.buf + sizeof(*u.set), data, len);
872
873 priv->current_command_oid = oid;
874 ret = rndis_command(dev, u.header, buflen);
875 priv->current_command_oid = 0;
876 if (ret < 0)
877 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
878 __func__, oid_to_string(oid), ret,
879 le32_to_cpu(u.set_c->status));
880
881 if (ret == 0) {
882 ret = rndis_error_status(u.set_c->status);
883
884 if (ret < 0)
885 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
886 __func__, oid_to_string(oid),
887 le32_to_cpu(u.set_c->status), ret);
888 }
889
890 mutex_unlock(&priv->command_lock);
891
892 if (u.buf != priv->command_buffer)
893 kfree(u.buf);
894 return ret;
895 }
896
897 static int rndis_reset(struct usbnet *usbdev)
898 {
899 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
900 struct rndis_reset *reset;
901 int ret;
902
903 mutex_lock(&priv->command_lock);
904
905 reset = (void *)priv->command_buffer;
906 memset(reset, 0, sizeof(*reset));
907 reset->msg_type = RNDIS_MSG_RESET;
908 reset->msg_len = cpu_to_le32(sizeof(*reset));
909 priv->current_command_oid = 0;
910 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
911
912 mutex_unlock(&priv->command_lock);
913
914 if (ret < 0)
915 return ret;
916 return 0;
917 }
918
919 /*
920 * Specs say that we can only set config parameters only soon after device
921 * initialization.
922 * value_type: 0 = u32, 2 = unicode string
923 */
924 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
925 int value_type, void *value)
926 {
927 struct ndis_config_param *infobuf;
928 int value_len, info_len, param_len, ret, i;
929 __le16 *unibuf;
930 __le32 *dst_value;
931
932 if (value_type == 0)
933 value_len = sizeof(__le32);
934 else if (value_type == 2)
935 value_len = strlen(value) * sizeof(__le16);
936 else
937 return -EINVAL;
938
939 param_len = strlen(param) * sizeof(__le16);
940 info_len = sizeof(*infobuf) + param_len + value_len;
941
942 #ifdef DEBUG
943 info_len += 12;
944 #endif
945 infobuf = kmalloc(info_len, GFP_KERNEL);
946 if (!infobuf)
947 return -ENOMEM;
948
949 #ifdef DEBUG
950 info_len -= 12;
951 /* extra 12 bytes are for padding (debug output) */
952 memset(infobuf, 0xCC, info_len + 12);
953 #endif
954
955 if (value_type == 2)
956 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
957 param, (u8 *)value);
958 else
959 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
960 param, *(u32 *)value);
961
962 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
963 infobuf->name_length = cpu_to_le32(param_len);
964 infobuf->type = cpu_to_le32(value_type);
965 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
966 infobuf->value_length = cpu_to_le32(value_len);
967
968 /* simple string to unicode string conversion */
969 unibuf = (void *)infobuf + sizeof(*infobuf);
970 for (i = 0; i < param_len / sizeof(__le16); i++)
971 unibuf[i] = cpu_to_le16(param[i]);
972
973 if (value_type == 2) {
974 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
975 for (i = 0; i < value_len / sizeof(__le16); i++)
976 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
977 } else {
978 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
979 *dst_value = cpu_to_le32(*(u32 *)value);
980 }
981
982 #ifdef DEBUG
983 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
984 for (i = 0; i < info_len; i += 12) {
985 u32 *tmp = (u32 *)((u8 *)infobuf + i);
986 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
987 cpu_to_be32(tmp[0]),
988 cpu_to_be32(tmp[1]),
989 cpu_to_be32(tmp[2]));
990 }
991 #endif
992
993 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
994 infobuf, info_len);
995 if (ret != 0)
996 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
997 ret);
998
999 kfree(infobuf);
1000 return ret;
1001 }
1002
1003 static int rndis_set_config_parameter_str(struct usbnet *dev,
1004 char *param, char *value)
1005 {
1006 return rndis_set_config_parameter(dev, param, 2, value);
1007 }
1008
1009 /*
1010 * data conversion functions
1011 */
1012 static int level_to_qual(int level)
1013 {
1014 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
1015 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
1016 }
1017
1018 /*
1019 * common functions
1020 */
1021 static int set_infra_mode(struct usbnet *usbdev, int mode);
1022 static void restore_keys(struct usbnet *usbdev);
1023 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1024 bool *matched);
1025
1026 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1027 {
1028 __le32 tmp;
1029
1030 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1031 tmp = cpu_to_le32(1);
1032 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1033 sizeof(tmp));
1034 }
1035
1036 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
1037 {
1038 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1039 int ret;
1040
1041 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
1042 if (ret < 0) {
1043 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1044 return ret;
1045 }
1046 if (ret == 0) {
1047 priv->radio_on = true;
1048 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1049 }
1050
1051 return ret;
1052 }
1053
1054 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1055 {
1056 int ret;
1057
1058 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1059 if (ret < 0) {
1060 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1061 bssid, ret);
1062 return ret;
1063 }
1064
1065 return ret;
1066 }
1067
1068 static int clear_bssid(struct usbnet *usbdev)
1069 {
1070 static const u8 broadcast_mac[ETH_ALEN] = {
1071 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1072 };
1073
1074 return set_bssid(usbdev, broadcast_mac);
1075 }
1076
1077 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1078 {
1079 int ret, len;
1080
1081 len = ETH_ALEN;
1082 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1083
1084 if (ret != 0)
1085 memset(bssid, 0, ETH_ALEN);
1086
1087 return ret;
1088 }
1089
1090 static int get_association_info(struct usbnet *usbdev,
1091 struct ndis_80211_assoc_info *info, int len)
1092 {
1093 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1094 info, &len);
1095 }
1096
1097 static bool is_associated(struct usbnet *usbdev)
1098 {
1099 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1100 u8 bssid[ETH_ALEN];
1101 int ret;
1102
1103 if (!priv->radio_on)
1104 return false;
1105
1106 ret = get_bssid(usbdev, bssid);
1107
1108 return (ret == 0 && !is_zero_ether_addr(bssid));
1109 }
1110
1111 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1112 {
1113 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1114 struct ndis_80211_ssid ssid;
1115 int i, ret = 0;
1116
1117 if (priv->radio_on) {
1118 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1119 if (ret == 0) {
1120 priv->radio_on = false;
1121 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1122 __func__);
1123
1124 if (reset_ssid)
1125 msleep(100);
1126 }
1127 }
1128
1129 /* disassociate causes radio to be turned off; if reset_ssid
1130 * is given, set random ssid to enable radio */
1131 if (reset_ssid) {
1132 /* Set device to infrastructure mode so we don't get ad-hoc
1133 * 'media connect' indications with the random ssid.
1134 */
1135 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1136
1137 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1138 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1139 ssid.essid[0] = 0x1;
1140 ssid.essid[1] = 0xff;
1141 for (i = 2; i < sizeof(ssid.essid); i++)
1142 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1143 ret = set_essid(usbdev, &ssid);
1144 }
1145 return ret;
1146 }
1147
1148 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1149 enum nl80211_auth_type auth_type, int keymgmt)
1150 {
1151 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1152 __le32 tmp;
1153 int auth_mode, ret;
1154
1155 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1156 __func__, wpa_version, auth_type, keymgmt);
1157
1158 if (wpa_version & NL80211_WPA_VERSION_2) {
1159 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1160 auth_mode = NDIS_80211_AUTH_WPA2;
1161 else
1162 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1163 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1164 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1165 auth_mode = NDIS_80211_AUTH_WPA;
1166 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1167 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1168 else
1169 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1170 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1171 auth_mode = NDIS_80211_AUTH_SHARED;
1172 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1173 auth_mode = NDIS_80211_AUTH_OPEN;
1174 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1175 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1176 else
1177 return -ENOTSUPP;
1178
1179 tmp = cpu_to_le32(auth_mode);
1180 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1181 sizeof(tmp));
1182 if (ret != 0) {
1183 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1184 ret);
1185 return ret;
1186 }
1187
1188 priv->wpa_version = wpa_version;
1189
1190 return 0;
1191 }
1192
1193 static int set_priv_filter(struct usbnet *usbdev)
1194 {
1195 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1196 __le32 tmp;
1197
1198 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1199 __func__, priv->wpa_version);
1200
1201 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1202 priv->wpa_version & NL80211_WPA_VERSION_1)
1203 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1204 else
1205 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1206
1207 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1208 sizeof(tmp));
1209 }
1210
1211 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1212 {
1213 __le32 tmp;
1214 int encr_mode, ret;
1215
1216 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1217 __func__, pairwise, groupwise);
1218
1219 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1220 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1221 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1222 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1223 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1224 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1225 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1226 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1227 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1228 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1229 else
1230 encr_mode = NDIS_80211_ENCR_DISABLED;
1231
1232 tmp = cpu_to_le32(encr_mode);
1233 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1234 sizeof(tmp));
1235 if (ret != 0) {
1236 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1237 ret);
1238 return ret;
1239 }
1240
1241 return 0;
1242 }
1243
1244 static int set_infra_mode(struct usbnet *usbdev, int mode)
1245 {
1246 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1247 __le32 tmp;
1248 int ret;
1249
1250 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1251 __func__, priv->infra_mode);
1252
1253 tmp = cpu_to_le32(mode);
1254 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1255 sizeof(tmp));
1256 if (ret != 0) {
1257 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1258 ret);
1259 return ret;
1260 }
1261
1262 /* NDIS drivers clear keys when infrastructure mode is
1263 * changed. But Linux tools assume otherwise. So set the
1264 * keys */
1265 restore_keys(usbdev);
1266
1267 priv->infra_mode = mode;
1268 return 0;
1269 }
1270
1271 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1272 {
1273 __le32 tmp;
1274
1275 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1276
1277 if (rts_threshold < 0 || rts_threshold > 2347)
1278 rts_threshold = 2347;
1279
1280 tmp = cpu_to_le32(rts_threshold);
1281 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1282 sizeof(tmp));
1283 }
1284
1285 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1286 {
1287 __le32 tmp;
1288
1289 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1290
1291 if (frag_threshold < 256 || frag_threshold > 2346)
1292 frag_threshold = 2346;
1293
1294 tmp = cpu_to_le32(frag_threshold);
1295 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1296 sizeof(tmp));
1297 }
1298
1299 static void set_default_iw_params(struct usbnet *usbdev)
1300 {
1301 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1302 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1303 RNDIS_WLAN_KEY_MGMT_NONE);
1304 set_priv_filter(usbdev);
1305 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1306 }
1307
1308 static int deauthenticate(struct usbnet *usbdev)
1309 {
1310 int ret;
1311
1312 ret = disassociate(usbdev, true);
1313 set_default_iw_params(usbdev);
1314 return ret;
1315 }
1316
1317 static int set_channel(struct usbnet *usbdev, int channel)
1318 {
1319 struct ndis_80211_conf config;
1320 unsigned int dsconfig;
1321 int len, ret;
1322
1323 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1324
1325 /* this OID is valid only when not associated */
1326 if (is_associated(usbdev))
1327 return 0;
1328
1329 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1330
1331 len = sizeof(config);
1332 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1333 if (ret < 0) {
1334 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1335 __func__);
1336 return ret;
1337 }
1338
1339 config.ds_config = cpu_to_le32(dsconfig);
1340 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1341 sizeof(config));
1342
1343 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1344
1345 return ret;
1346 }
1347
1348 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1349 u32 *beacon_period)
1350 {
1351 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1352 struct ieee80211_channel *channel;
1353 struct ndis_80211_conf config;
1354 int len, ret;
1355
1356 /* Get channel and beacon interval */
1357 len = sizeof(config);
1358 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1359 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
1360 __func__, ret);
1361 if (ret < 0)
1362 return NULL;
1363
1364 channel = ieee80211_get_channel(priv->wdev.wiphy,
1365 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1366 if (!channel)
1367 return NULL;
1368
1369 if (beacon_period)
1370 *beacon_period = le32_to_cpu(config.beacon_period);
1371 return channel;
1372 }
1373
1374 /* index must be 0 - N, as per NDIS */
1375 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1376 u8 index)
1377 {
1378 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1379 struct ndis_80211_wep_key ndis_key;
1380 u32 cipher;
1381 int ret;
1382
1383 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1384 __func__, index, key_len);
1385
1386 if (index >= RNDIS_WLAN_NUM_KEYS)
1387 return -EINVAL;
1388
1389 if (key_len == 5)
1390 cipher = WLAN_CIPHER_SUITE_WEP40;
1391 else if (key_len == 13)
1392 cipher = WLAN_CIPHER_SUITE_WEP104;
1393 else
1394 return -EINVAL;
1395
1396 memset(&ndis_key, 0, sizeof(ndis_key));
1397
1398 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1399 ndis_key.length = cpu_to_le32(key_len);
1400 ndis_key.index = cpu_to_le32(index);
1401 memcpy(&ndis_key.material, key, key_len);
1402
1403 if (index == priv->encr_tx_key_index) {
1404 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1405 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1406 RNDIS_WLAN_ALG_NONE);
1407 if (ret)
1408 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1409 ret);
1410 }
1411
1412 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1413 sizeof(ndis_key));
1414 if (ret != 0) {
1415 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1416 index + 1, ret);
1417 return ret;
1418 }
1419
1420 priv->encr_keys[index].len = key_len;
1421 priv->encr_keys[index].cipher = cipher;
1422 memcpy(&priv->encr_keys[index].material, key, key_len);
1423 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1424
1425 return 0;
1426 }
1427
1428 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1429 u8 index, const u8 *addr, const u8 *rx_seq,
1430 int seq_len, u32 cipher, __le32 flags)
1431 {
1432 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1433 struct ndis_80211_key ndis_key;
1434 bool is_addr_ok;
1435 int ret;
1436
1437 if (index >= RNDIS_WLAN_NUM_KEYS) {
1438 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1439 __func__, index);
1440 return -EINVAL;
1441 }
1442 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1443 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1444 __func__, key_len);
1445 return -EINVAL;
1446 }
1447 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1448 if (!rx_seq || seq_len <= 0) {
1449 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1450 __func__);
1451 return -EINVAL;
1452 }
1453 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1454 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1455 return -EINVAL;
1456 }
1457 }
1458
1459 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1460 !is_broadcast_ether_addr(addr);
1461 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1462 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1463 __func__, addr);
1464 return -EINVAL;
1465 }
1466
1467 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1468 __func__, index,
1469 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1470 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1471 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1472
1473 memset(&ndis_key, 0, sizeof(ndis_key));
1474
1475 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1476 sizeof(ndis_key.material) + key_len);
1477 ndis_key.length = cpu_to_le32(key_len);
1478 ndis_key.index = cpu_to_le32(index) | flags;
1479
1480 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1481 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1482 * different order than NDIS spec, so swap the order here. */
1483 memcpy(ndis_key.material, key, 16);
1484 memcpy(ndis_key.material + 16, key + 24, 8);
1485 memcpy(ndis_key.material + 24, key + 16, 8);
1486 } else
1487 memcpy(ndis_key.material, key, key_len);
1488
1489 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1490 memcpy(ndis_key.rsc, rx_seq, seq_len);
1491
1492 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1493 /* pairwise key */
1494 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1495 } else {
1496 /* group key */
1497 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1498 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1499 else
1500 get_bssid(usbdev, ndis_key.bssid);
1501 }
1502
1503 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1504 le32_to_cpu(ndis_key.size));
1505 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1506 __func__, ret);
1507 if (ret != 0)
1508 return ret;
1509
1510 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1511 priv->encr_keys[index].len = key_len;
1512 priv->encr_keys[index].cipher = cipher;
1513 memcpy(&priv->encr_keys[index].material, key, key_len);
1514 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1515 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1516 else
1517 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1518
1519 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1520 priv->encr_tx_key_index = index;
1521
1522 return 0;
1523 }
1524
1525 static int restore_key(struct usbnet *usbdev, u8 key_idx)
1526 {
1527 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1528 struct rndis_wlan_encr_key key;
1529
1530 if (is_wpa_key(priv, key_idx))
1531 return 0;
1532
1533 key = priv->encr_keys[key_idx];
1534
1535 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1536
1537 if (key.len == 0)
1538 return 0;
1539
1540 return add_wep_key(usbdev, key.material, key.len, key_idx);
1541 }
1542
1543 static void restore_keys(struct usbnet *usbdev)
1544 {
1545 int i;
1546
1547 for (i = 0; i < 4; i++)
1548 restore_key(usbdev, i);
1549 }
1550
1551 static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1552 {
1553 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1554 }
1555
1556 /* remove_key is for both wep and wpa */
1557 static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1558 {
1559 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1560 struct ndis_80211_remove_key remove_key;
1561 __le32 keyindex;
1562 bool is_wpa;
1563 int ret;
1564
1565 if (index >= RNDIS_WLAN_NUM_KEYS)
1566 return -ENOENT;
1567
1568 if (priv->encr_keys[index].len == 0)
1569 return 0;
1570
1571 is_wpa = is_wpa_key(priv, index);
1572
1573 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1574 __func__, index, is_wpa ? "wpa" : "wep",
1575 priv->encr_keys[index].len);
1576
1577 clear_key(priv, index);
1578
1579 if (is_wpa) {
1580 remove_key.size = cpu_to_le32(sizeof(remove_key));
1581 remove_key.index = cpu_to_le32(index);
1582 if (bssid) {
1583 /* pairwise key */
1584 if (!is_broadcast_ether_addr(bssid))
1585 remove_key.index |=
1586 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1587 memcpy(remove_key.bssid, bssid,
1588 sizeof(remove_key.bssid));
1589 } else
1590 memset(remove_key.bssid, 0xff,
1591 sizeof(remove_key.bssid));
1592
1593 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1594 sizeof(remove_key));
1595 if (ret != 0)
1596 return ret;
1597 } else {
1598 keyindex = cpu_to_le32(index);
1599 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1600 sizeof(keyindex));
1601 if (ret != 0) {
1602 netdev_warn(usbdev->net,
1603 "removing encryption key %d failed (%08X)\n",
1604 index, ret);
1605 return ret;
1606 }
1607 }
1608
1609 /* if it is transmit key, disable encryption */
1610 if (index == priv->encr_tx_key_index)
1611 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1612
1613 return 0;
1614 }
1615
1616 static void set_multicast_list(struct usbnet *usbdev)
1617 {
1618 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1619 struct netdev_hw_addr *ha;
1620 __le32 filter, basefilter;
1621 int ret;
1622 char *mc_addrs = NULL;
1623 int mc_count;
1624
1625 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1626 RNDIS_PACKET_TYPE_BROADCAST;
1627
1628 if (usbdev->net->flags & IFF_PROMISC) {
1629 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1630 RNDIS_PACKET_TYPE_ALL_LOCAL;
1631 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1632 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1633 }
1634
1635 if (filter != basefilter)
1636 goto set_filter;
1637
1638 /*
1639 * mc_list should be accessed holding the lock, so copy addresses to
1640 * local buffer first.
1641 */
1642 netif_addr_lock_bh(usbdev->net);
1643 mc_count = netdev_mc_count(usbdev->net);
1644 if (mc_count > priv->multicast_size) {
1645 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1646 } else if (mc_count) {
1647 int i = 0;
1648
1649 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1650 if (!mc_addrs) {
1651 netdev_warn(usbdev->net,
1652 "couldn't alloc %d bytes of memory\n",
1653 mc_count * ETH_ALEN);
1654 netif_addr_unlock_bh(usbdev->net);
1655 return;
1656 }
1657
1658 netdev_for_each_mc_addr(ha, usbdev->net)
1659 memcpy(mc_addrs + i++ * ETH_ALEN,
1660 ha->addr, ETH_ALEN);
1661 }
1662 netif_addr_unlock_bh(usbdev->net);
1663
1664 if (filter != basefilter)
1665 goto set_filter;
1666
1667 if (mc_count) {
1668 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1669 mc_count * ETH_ALEN);
1670 kfree(mc_addrs);
1671 if (ret == 0)
1672 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1673 else
1674 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1675
1676 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1677 mc_count, priv->multicast_size, ret);
1678 }
1679
1680 set_filter:
1681 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1682 sizeof(filter));
1683 if (ret < 0) {
1684 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1685 le32_to_cpu(filter));
1686 }
1687
1688 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1689 le32_to_cpu(filter), ret);
1690 }
1691
1692 #ifdef DEBUG
1693 static void debug_print_pmkids(struct usbnet *usbdev,
1694 struct ndis_80211_pmkid *pmkids,
1695 const char *func_str)
1696 {
1697 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1698 int i, len, count, max_pmkids, entry_len;
1699
1700 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1701 len = le32_to_cpu(pmkids->length);
1702 count = le32_to_cpu(pmkids->bssid_info_count);
1703
1704 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1705
1706 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1707 "%d)\n", func_str, count, len, entry_len);
1708
1709 if (count > max_pmkids)
1710 count = max_pmkids;
1711
1712 for (i = 0; i < count; i++) {
1713 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1714
1715 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1716 "pmkid: %08X:%08X:%08X:%08X\n",
1717 func_str, pmkids->bssid_info[i].bssid,
1718 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1719 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1720 }
1721 }
1722 #else
1723 static void debug_print_pmkids(struct usbnet *usbdev,
1724 struct ndis_80211_pmkid *pmkids,
1725 const char *func_str)
1726 {
1727 return;
1728 }
1729 #endif
1730
1731 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1732 {
1733 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1734 struct ndis_80211_pmkid *pmkids;
1735 int len, ret, max_pmkids;
1736
1737 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1738 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1739
1740 pmkids = kzalloc(len, GFP_KERNEL);
1741 if (!pmkids)
1742 return ERR_PTR(-ENOMEM);
1743
1744 pmkids->length = cpu_to_le32(len);
1745 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1746
1747 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1748 if (ret < 0) {
1749 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1750 " -> %d\n", __func__, len, max_pmkids, ret);
1751
1752 kfree(pmkids);
1753 return ERR_PTR(ret);
1754 }
1755
1756 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1757 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1758
1759 debug_print_pmkids(usbdev, pmkids, __func__);
1760
1761 return pmkids;
1762 }
1763
1764 static int set_device_pmkids(struct usbnet *usbdev,
1765 struct ndis_80211_pmkid *pmkids)
1766 {
1767 int ret, len, num_pmkids;
1768
1769 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1770 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1771 pmkids->length = cpu_to_le32(len);
1772
1773 debug_print_pmkids(usbdev, pmkids, __func__);
1774
1775 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1776 le32_to_cpu(pmkids->length));
1777 if (ret < 0) {
1778 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1779 "\n", __func__, len, num_pmkids, ret);
1780 }
1781
1782 kfree(pmkids);
1783 return ret;
1784 }
1785
1786 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1787 struct ndis_80211_pmkid *pmkids,
1788 struct cfg80211_pmksa *pmksa,
1789 int max_pmkids)
1790 {
1791 int i, newlen, err;
1792 unsigned int count;
1793
1794 count = le32_to_cpu(pmkids->bssid_info_count);
1795
1796 if (count > max_pmkids)
1797 count = max_pmkids;
1798
1799 for (i = 0; i < count; i++)
1800 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1801 pmksa->bssid))
1802 break;
1803
1804 /* pmkid not found */
1805 if (i == count) {
1806 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1807 __func__, pmksa->bssid);
1808 err = -ENOENT;
1809 goto error;
1810 }
1811
1812 for (; i + 1 < count; i++)
1813 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1814
1815 count--;
1816 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1817
1818 pmkids->length = cpu_to_le32(newlen);
1819 pmkids->bssid_info_count = cpu_to_le32(count);
1820
1821 return pmkids;
1822 error:
1823 kfree(pmkids);
1824 return ERR_PTR(err);
1825 }
1826
1827 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1828 struct ndis_80211_pmkid *pmkids,
1829 struct cfg80211_pmksa *pmksa,
1830 int max_pmkids)
1831 {
1832 int i, err, newlen;
1833 unsigned int count;
1834
1835 count = le32_to_cpu(pmkids->bssid_info_count);
1836
1837 if (count > max_pmkids)
1838 count = max_pmkids;
1839
1840 /* update with new pmkid */
1841 for (i = 0; i < count; i++) {
1842 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1843 pmksa->bssid))
1844 continue;
1845
1846 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1847 WLAN_PMKID_LEN);
1848
1849 return pmkids;
1850 }
1851
1852 /* out of space, return error */
1853 if (i == max_pmkids) {
1854 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1855 err = -ENOSPC;
1856 goto error;
1857 }
1858
1859 /* add new pmkid */
1860 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1861
1862 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1863 if (!pmkids) {
1864 err = -ENOMEM;
1865 goto error;
1866 }
1867
1868 pmkids->length = cpu_to_le32(newlen);
1869 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1870
1871 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1872 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1873
1874 return pmkids;
1875 error:
1876 kfree(pmkids);
1877 return ERR_PTR(err);
1878 }
1879
1880 /*
1881 * cfg80211 ops
1882 */
1883 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1884 struct net_device *dev,
1885 enum nl80211_iftype type, u32 *flags,
1886 struct vif_params *params)
1887 {
1888 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1889 struct usbnet *usbdev = priv->usbdev;
1890 int mode;
1891
1892 switch (type) {
1893 case NL80211_IFTYPE_ADHOC:
1894 mode = NDIS_80211_INFRA_ADHOC;
1895 break;
1896 case NL80211_IFTYPE_STATION:
1897 mode = NDIS_80211_INFRA_INFRA;
1898 break;
1899 default:
1900 return -EINVAL;
1901 }
1902
1903 priv->wdev.iftype = type;
1904
1905 return set_infra_mode(usbdev, mode);
1906 }
1907
1908 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1909 {
1910 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1911 struct usbnet *usbdev = priv->usbdev;
1912 int err;
1913
1914 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1915 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1916 if (err < 0)
1917 return err;
1918 }
1919
1920 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1921 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1922 if (err < 0)
1923 return err;
1924 }
1925
1926 return 0;
1927 }
1928
1929 static int rndis_set_tx_power(struct wiphy *wiphy,
1930 enum nl80211_tx_power_setting type,
1931 int mbm)
1932 {
1933 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1934 struct usbnet *usbdev = priv->usbdev;
1935
1936 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1937 __func__, type, mbm);
1938
1939 if (mbm < 0 || (mbm % 100))
1940 return -ENOTSUPP;
1941
1942 /* Device doesn't support changing txpower after initialization, only
1943 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1944 * currently used.
1945 */
1946 if (type == NL80211_TX_POWER_AUTOMATIC ||
1947 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1948 if (!priv->radio_on)
1949 disassociate(usbdev, true); /* turn on radio */
1950
1951 return 0;
1952 }
1953
1954 return -ENOTSUPP;
1955 }
1956
1957 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1958 {
1959 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1960 struct usbnet *usbdev = priv->usbdev;
1961
1962 *dbm = get_bcm4320_power_dbm(priv);
1963
1964 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1965
1966 return 0;
1967 }
1968
1969 #define SCAN_DELAY_JIFFIES (6 * HZ)
1970 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1971 struct cfg80211_scan_request *request)
1972 {
1973 struct usbnet *usbdev = netdev_priv(dev);
1974 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1975 int ret;
1976 int delay = SCAN_DELAY_JIFFIES;
1977
1978 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1979
1980 /* Get current bssid list from device before new scan, as new scan
1981 * clears internal bssid list.
1982 */
1983 rndis_check_bssid_list(usbdev, NULL, NULL);
1984
1985 if (!request)
1986 return -EINVAL;
1987
1988 if (priv->scan_request && priv->scan_request != request)
1989 return -EBUSY;
1990
1991 priv->scan_request = request;
1992
1993 ret = rndis_start_bssid_list_scan(usbdev);
1994 if (ret == 0) {
1995 if (priv->device_type == RNDIS_BCM4320A)
1996 delay = HZ;
1997
1998 /* Wait before retrieving scan results from device */
1999 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
2000 }
2001
2002 return ret;
2003 }
2004
2005 static bool rndis_bss_info_update(struct usbnet *usbdev,
2006 struct ndis_80211_bssid_ex *bssid)
2007 {
2008 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2009 struct ieee80211_channel *channel;
2010 struct cfg80211_bss *bss;
2011 s32 signal;
2012 u64 timestamp;
2013 u16 capability;
2014 u16 beacon_interval;
2015 struct ndis_80211_fixed_ies *fixed;
2016 int ie_len, bssid_len;
2017 u8 *ie;
2018
2019 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
2020 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
2021
2022 /* parse bssid structure */
2023 bssid_len = le32_to_cpu(bssid->length);
2024
2025 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2026 sizeof(struct ndis_80211_fixed_ies))
2027 return NULL;
2028
2029 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2030
2031 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2032 ie_len = min(bssid_len - (int)sizeof(*bssid),
2033 (int)le32_to_cpu(bssid->ie_length));
2034 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2035 if (ie_len < 0)
2036 return NULL;
2037
2038 /* extract data for cfg80211_inform_bss */
2039 channel = ieee80211_get_channel(priv->wdev.wiphy,
2040 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2041 if (!channel)
2042 return NULL;
2043
2044 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2045 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2046 capability = le16_to_cpu(fixed->capabilities);
2047 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2048
2049 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2050 timestamp, capability, beacon_interval, ie, ie_len, signal,
2051 GFP_KERNEL);
2052 cfg80211_put_bss(bss);
2053
2054 return (bss != NULL);
2055 }
2056
2057 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2058 struct ndis_80211_bssid_ex *bssid,
2059 int *bssid_len, void *buf, int len)
2060 {
2061 void *buf_end, *bssid_end;
2062
2063 buf_end = (char *)buf + len;
2064 bssid_end = (char *)bssid + *bssid_len;
2065
2066 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2067 *bssid_len = 0;
2068 return NULL;
2069 } else {
2070 bssid = (void *)((char *)bssid + *bssid_len);
2071 *bssid_len = le32_to_cpu(bssid->length);
2072 return bssid;
2073 }
2074 }
2075
2076 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2077 int bssid_len, void *buf, int len)
2078 {
2079 void *buf_end, *bssid_end;
2080
2081 if (!bssid || bssid_len <= 0 || bssid_len > len)
2082 return false;
2083
2084 buf_end = (char *)buf + len;
2085 bssid_end = (char *)bssid + bssid_len;
2086
2087 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2088 }
2089
2090 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2091 bool *matched)
2092 {
2093 void *buf = NULL;
2094 struct ndis_80211_bssid_list_ex *bssid_list;
2095 struct ndis_80211_bssid_ex *bssid;
2096 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2097
2098 netdev_dbg(usbdev->net, "%s()\n", __func__);
2099
2100 len = CONTROL_BUFFER_SIZE;
2101 resize_buf:
2102 buf = kzalloc(len, GFP_KERNEL);
2103 if (!buf) {
2104 ret = -ENOMEM;
2105 goto out;
2106 }
2107
2108 /* BSSID-list might have got bigger last time we checked, keep
2109 * resizing until it won't get any bigger.
2110 */
2111 new_len = len;
2112 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &new_len);
2113 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2114 goto out;
2115
2116 if (new_len > len) {
2117 len = new_len;
2118 kfree(buf);
2119 goto resize_buf;
2120 }
2121
2122 len = new_len;
2123
2124 bssid_list = buf;
2125 count = le32_to_cpu(bssid_list->num_items);
2126 real_count = 0;
2127 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2128
2129 bssid_len = 0;
2130 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2131
2132 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2133 * received 'num_items' and walking through full bssid buffer instead.
2134 */
2135 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2136 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2137 matched) {
2138 if (compare_ether_addr(bssid->mac, match_bssid))
2139 *matched = true;
2140 }
2141
2142 real_count++;
2143 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2144 }
2145
2146 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2147 " %d\n", __func__, count, real_count);
2148
2149 out:
2150 kfree(buf);
2151 return ret;
2152 }
2153
2154 static void rndis_get_scan_results(struct work_struct *work)
2155 {
2156 struct rndis_wlan_private *priv =
2157 container_of(work, struct rndis_wlan_private, scan_work.work);
2158 struct usbnet *usbdev = priv->usbdev;
2159 int ret;
2160
2161 netdev_dbg(usbdev->net, "get_scan_results\n");
2162
2163 if (!priv->scan_request)
2164 return;
2165
2166 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2167
2168 cfg80211_scan_done(priv->scan_request, ret < 0);
2169
2170 priv->scan_request = NULL;
2171 }
2172
2173 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2174 struct cfg80211_connect_params *sme)
2175 {
2176 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2177 struct usbnet *usbdev = priv->usbdev;
2178 struct ieee80211_channel *channel = sme->channel;
2179 struct ndis_80211_ssid ssid;
2180 int pairwise = RNDIS_WLAN_ALG_NONE;
2181 int groupwise = RNDIS_WLAN_ALG_NONE;
2182 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2183 int length, i, ret, chan = -1;
2184
2185 if (channel)
2186 chan = ieee80211_frequency_to_channel(channel->center_freq);
2187
2188 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2189 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2190 pairwise |=
2191 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2192
2193 if (sme->crypto.n_ciphers_pairwise > 0 &&
2194 pairwise == RNDIS_WLAN_ALG_NONE) {
2195 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2196 return -ENOTSUPP;
2197 }
2198
2199 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2200 keymgmt |=
2201 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2202
2203 if (sme->crypto.n_akm_suites > 0 &&
2204 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2205 netdev_err(usbdev->net, "Invalid keymgmt\n");
2206 return -ENOTSUPP;
2207 }
2208
2209 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2210 sme->ssid, sme->bssid, chan,
2211 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2212 groupwise, pairwise, keymgmt);
2213
2214 if (is_associated(usbdev))
2215 disassociate(usbdev, false);
2216
2217 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2218 if (ret < 0) {
2219 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2220 ret);
2221 goto err_turn_radio_on;
2222 }
2223
2224 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2225 keymgmt);
2226 if (ret < 0) {
2227 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2228 ret);
2229 goto err_turn_radio_on;
2230 }
2231
2232 set_priv_filter(usbdev);
2233
2234 ret = set_encr_mode(usbdev, pairwise, groupwise);
2235 if (ret < 0) {
2236 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2237 ret);
2238 goto err_turn_radio_on;
2239 }
2240
2241 if (channel) {
2242 ret = set_channel(usbdev, chan);
2243 if (ret < 0) {
2244 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2245 ret);
2246 goto err_turn_radio_on;
2247 }
2248 }
2249
2250 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2251 priv->encr_tx_key_index = sme->key_idx;
2252 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2253 if (ret < 0) {
2254 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2255 ret, sme->key_len, sme->key_idx);
2256 goto err_turn_radio_on;
2257 }
2258 }
2259
2260 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2261 !is_broadcast_ether_addr(sme->bssid)) {
2262 ret = set_bssid(usbdev, sme->bssid);
2263 if (ret < 0) {
2264 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2265 ret);
2266 goto err_turn_radio_on;
2267 }
2268 } else
2269 clear_bssid(usbdev);
2270
2271 length = sme->ssid_len;
2272 if (length > NDIS_802_11_LENGTH_SSID)
2273 length = NDIS_802_11_LENGTH_SSID;
2274
2275 memset(&ssid, 0, sizeof(ssid));
2276 ssid.length = cpu_to_le32(length);
2277 memcpy(ssid.essid, sme->ssid, length);
2278
2279 /* Pause and purge rx queue, so we don't pass packets before
2280 * 'media connect'-indication.
2281 */
2282 usbnet_pause_rx(usbdev);
2283 usbnet_purge_paused_rxq(usbdev);
2284
2285 ret = set_essid(usbdev, &ssid);
2286 if (ret < 0)
2287 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2288 return ret;
2289
2290 err_turn_radio_on:
2291 disassociate(usbdev, true);
2292
2293 return ret;
2294 }
2295
2296 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2297 u16 reason_code)
2298 {
2299 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2300 struct usbnet *usbdev = priv->usbdev;
2301
2302 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2303
2304 priv->connected = false;
2305 memset(priv->bssid, 0, ETH_ALEN);
2306
2307 return deauthenticate(usbdev);
2308 }
2309
2310 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2311 struct cfg80211_ibss_params *params)
2312 {
2313 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2314 struct usbnet *usbdev = priv->usbdev;
2315 struct ieee80211_channel *channel = params->channel;
2316 struct ndis_80211_ssid ssid;
2317 enum nl80211_auth_type auth_type;
2318 int ret, alg, length, chan = -1;
2319
2320 if (channel)
2321 chan = ieee80211_frequency_to_channel(channel->center_freq);
2322
2323 /* TODO: How to handle ad-hoc encryption?
2324 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2325 * pre-shared for encryption (open/shared/wpa), is key set before
2326 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2327 */
2328 if (params->privacy) {
2329 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2330 alg = RNDIS_WLAN_ALG_WEP;
2331 } else {
2332 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2333 alg = RNDIS_WLAN_ALG_NONE;
2334 }
2335
2336 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2337 params->ssid, params->bssid, chan, params->privacy);
2338
2339 if (is_associated(usbdev))
2340 disassociate(usbdev, false);
2341
2342 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2343 if (ret < 0) {
2344 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2345 ret);
2346 goto err_turn_radio_on;
2347 }
2348
2349 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2350 if (ret < 0) {
2351 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2352 ret);
2353 goto err_turn_radio_on;
2354 }
2355
2356 set_priv_filter(usbdev);
2357
2358 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2359 if (ret < 0) {
2360 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2361 ret);
2362 goto err_turn_radio_on;
2363 }
2364
2365 if (channel) {
2366 ret = set_channel(usbdev, chan);
2367 if (ret < 0) {
2368 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2369 ret);
2370 goto err_turn_radio_on;
2371 }
2372 }
2373
2374 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2375 !is_broadcast_ether_addr(params->bssid)) {
2376 ret = set_bssid(usbdev, params->bssid);
2377 if (ret < 0) {
2378 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2379 ret);
2380 goto err_turn_radio_on;
2381 }
2382 } else
2383 clear_bssid(usbdev);
2384
2385 length = params->ssid_len;
2386 if (length > NDIS_802_11_LENGTH_SSID)
2387 length = NDIS_802_11_LENGTH_SSID;
2388
2389 memset(&ssid, 0, sizeof(ssid));
2390 ssid.length = cpu_to_le32(length);
2391 memcpy(ssid.essid, params->ssid, length);
2392
2393 /* Don't need to pause rx queue for ad-hoc. */
2394 usbnet_purge_paused_rxq(usbdev);
2395 usbnet_resume_rx(usbdev);
2396
2397 ret = set_essid(usbdev, &ssid);
2398 if (ret < 0)
2399 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2400 ret);
2401 return ret;
2402
2403 err_turn_radio_on:
2404 disassociate(usbdev, true);
2405
2406 return ret;
2407 }
2408
2409 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2410 {
2411 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2412 struct usbnet *usbdev = priv->usbdev;
2413
2414 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2415
2416 priv->connected = false;
2417 memset(priv->bssid, 0, ETH_ALEN);
2418
2419 return deauthenticate(usbdev);
2420 }
2421
2422 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2423 u8 key_index, bool pairwise, const u8 *mac_addr,
2424 struct key_params *params)
2425 {
2426 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2427 struct usbnet *usbdev = priv->usbdev;
2428 __le32 flags;
2429
2430 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2431 __func__, key_index, mac_addr, params->cipher);
2432
2433 switch (params->cipher) {
2434 case WLAN_CIPHER_SUITE_WEP40:
2435 case WLAN_CIPHER_SUITE_WEP104:
2436 return add_wep_key(usbdev, params->key, params->key_len,
2437 key_index);
2438 case WLAN_CIPHER_SUITE_TKIP:
2439 case WLAN_CIPHER_SUITE_CCMP:
2440 flags = 0;
2441
2442 if (params->seq && params->seq_len > 0)
2443 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2444 if (mac_addr)
2445 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2446 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2447
2448 return add_wpa_key(usbdev, params->key, params->key_len,
2449 key_index, mac_addr, params->seq,
2450 params->seq_len, params->cipher, flags);
2451 default:
2452 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2453 __func__, params->cipher);
2454 return -ENOTSUPP;
2455 }
2456 }
2457
2458 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2459 u8 key_index, bool pairwise, const u8 *mac_addr)
2460 {
2461 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2462 struct usbnet *usbdev = priv->usbdev;
2463
2464 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2465
2466 return remove_key(usbdev, key_index, mac_addr);
2467 }
2468
2469 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2470 u8 key_index, bool unicast, bool multicast)
2471 {
2472 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2473 struct usbnet *usbdev = priv->usbdev;
2474 struct rndis_wlan_encr_key key;
2475
2476 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2477
2478 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2479 return -ENOENT;
2480
2481 priv->encr_tx_key_index = key_index;
2482
2483 if (is_wpa_key(priv, key_index))
2484 return 0;
2485
2486 key = priv->encr_keys[key_index];
2487
2488 return add_wep_key(usbdev, key.material, key.len, key_index);
2489 }
2490
2491 static void rndis_fill_station_info(struct usbnet *usbdev,
2492 struct station_info *sinfo)
2493 {
2494 __le32 linkspeed, rssi;
2495 int ret, len;
2496
2497 memset(sinfo, 0, sizeof(*sinfo));
2498
2499 len = sizeof(linkspeed);
2500 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2501 if (ret == 0) {
2502 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2503 sinfo->filled |= STATION_INFO_TX_BITRATE;
2504 }
2505
2506 len = sizeof(rssi);
2507 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2508 if (ret == 0) {
2509 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2510 sinfo->filled |= STATION_INFO_SIGNAL;
2511 }
2512 }
2513
2514 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2515 u8 *mac, struct station_info *sinfo)
2516 {
2517 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2518 struct usbnet *usbdev = priv->usbdev;
2519
2520 if (compare_ether_addr(priv->bssid, mac))
2521 return -ENOENT;
2522
2523 rndis_fill_station_info(usbdev, sinfo);
2524
2525 return 0;
2526 }
2527
2528 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2529 int idx, u8 *mac, struct station_info *sinfo)
2530 {
2531 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2532 struct usbnet *usbdev = priv->usbdev;
2533
2534 if (idx != 0)
2535 return -ENOENT;
2536
2537 memcpy(mac, priv->bssid, ETH_ALEN);
2538
2539 rndis_fill_station_info(usbdev, sinfo);
2540
2541 return 0;
2542 }
2543
2544 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2545 struct cfg80211_pmksa *pmksa)
2546 {
2547 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2548 struct usbnet *usbdev = priv->usbdev;
2549 struct ndis_80211_pmkid *pmkids;
2550 u32 *tmp = (u32 *)pmksa->pmkid;
2551
2552 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2553 pmksa->bssid,
2554 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2555 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2556
2557 pmkids = get_device_pmkids(usbdev);
2558 if (IS_ERR(pmkids)) {
2559 /* couldn't read PMKID cache from device */
2560 return PTR_ERR(pmkids);
2561 }
2562
2563 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2564 if (IS_ERR(pmkids)) {
2565 /* not found, list full, etc */
2566 return PTR_ERR(pmkids);
2567 }
2568
2569 return set_device_pmkids(usbdev, pmkids);
2570 }
2571
2572 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2573 struct cfg80211_pmksa *pmksa)
2574 {
2575 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2576 struct usbnet *usbdev = priv->usbdev;
2577 struct ndis_80211_pmkid *pmkids;
2578 u32 *tmp = (u32 *)pmksa->pmkid;
2579
2580 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2581 pmksa->bssid,
2582 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2583 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2584
2585 pmkids = get_device_pmkids(usbdev);
2586 if (IS_ERR(pmkids)) {
2587 /* Couldn't read PMKID cache from device */
2588 return PTR_ERR(pmkids);
2589 }
2590
2591 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2592 if (IS_ERR(pmkids)) {
2593 /* not found, etc */
2594 return PTR_ERR(pmkids);
2595 }
2596
2597 return set_device_pmkids(usbdev, pmkids);
2598 }
2599
2600 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2601 {
2602 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2603 struct usbnet *usbdev = priv->usbdev;
2604 struct ndis_80211_pmkid pmkid;
2605
2606 netdev_dbg(usbdev->net, "%s()\n", __func__);
2607
2608 memset(&pmkid, 0, sizeof(pmkid));
2609
2610 pmkid.length = cpu_to_le32(sizeof(pmkid));
2611 pmkid.bssid_info_count = cpu_to_le32(0);
2612
2613 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2614 }
2615
2616 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2617 bool enabled, int timeout)
2618 {
2619 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2620 struct usbnet *usbdev = priv->usbdev;
2621 int power_mode;
2622 __le32 mode;
2623 int ret;
2624
2625 if (priv->device_type != RNDIS_BCM4320B)
2626 return -ENOTSUPP;
2627
2628 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2629 enabled ? "enabled" : "disabled",
2630 timeout);
2631
2632 if (enabled)
2633 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2634 else
2635 power_mode = NDIS_80211_POWER_MODE_CAM;
2636
2637 if (power_mode == priv->power_mode)
2638 return 0;
2639
2640 priv->power_mode = power_mode;
2641
2642 mode = cpu_to_le32(power_mode);
2643 ret = rndis_set_oid(usbdev, OID_802_11_POWER_MODE, &mode, sizeof(mode));
2644
2645 netdev_dbg(usbdev->net, "%s(): OID_802_11_POWER_MODE -> %d\n",
2646 __func__, ret);
2647
2648 return ret;
2649 }
2650
2651 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2652 struct net_device *dev,
2653 s32 rssi_thold, u32 rssi_hyst)
2654 {
2655 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2656
2657 priv->cqm_rssi_thold = rssi_thold;
2658 priv->cqm_rssi_hyst = rssi_hyst;
2659 priv->last_cqm_event_rssi = 0;
2660
2661 return 0;
2662 }
2663
2664 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2665 struct ndis_80211_assoc_info *info)
2666 {
2667 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2668 struct ieee80211_channel *channel;
2669 struct ndis_80211_ssid ssid;
2670 struct cfg80211_bss *bss;
2671 s32 signal;
2672 u64 timestamp;
2673 u16 capability;
2674 u32 beacon_period = 0;
2675 __le32 rssi;
2676 u8 ie_buf[34];
2677 int len, ret, ie_len;
2678
2679 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2680 len = sizeof(rssi);
2681 rssi = 0;
2682 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2683 signal = level_to_qual(le32_to_cpu(rssi));
2684
2685 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2686 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2687 level_to_qual(le32_to_cpu(rssi)));
2688
2689 /* Get AP capabilities */
2690 if (info) {
2691 capability = le16_to_cpu(info->resp_ie.capa);
2692 } else {
2693 /* Set atleast ESS/IBSS capability */
2694 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2695 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2696 }
2697
2698 /* Get channel and beacon interval */
2699 channel = get_current_channel(usbdev, &beacon_period);
2700 if (!channel) {
2701 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2702 __func__);
2703 return;
2704 }
2705
2706 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2707 len = sizeof(ssid);
2708 memset(&ssid, 0, sizeof(ssid));
2709 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2710 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2711 "'%.32s'\n", __func__, ret,
2712 le32_to_cpu(ssid.length), ssid.essid);
2713
2714 if (le32_to_cpu(ssid.length) > 32)
2715 ssid.length = cpu_to_le32(32);
2716
2717 ie_buf[0] = WLAN_EID_SSID;
2718 ie_buf[1] = le32_to_cpu(ssid.length);
2719 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2720
2721 ie_len = le32_to_cpu(ssid.length) + 2;
2722
2723 /* no tsf */
2724 timestamp = 0;
2725
2726 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2727 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2728 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2729 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2730 ssid.essid, signal);
2731
2732 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2733 timestamp, capability, beacon_period, ie_buf, ie_len,
2734 signal, GFP_KERNEL);
2735 cfg80211_put_bss(bss);
2736 }
2737
2738 /*
2739 * workers, indication handlers, device poller
2740 */
2741 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2742 {
2743 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2744 struct ndis_80211_assoc_info *info = NULL;
2745 u8 bssid[ETH_ALEN];
2746 unsigned int resp_ie_len, req_ie_len;
2747 unsigned int offset;
2748 u8 *req_ie, *resp_ie;
2749 int ret;
2750 bool roamed = false;
2751 bool match_bss;
2752
2753 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2754 /* received media connect indication while connected, either
2755 * device reassociated with same AP or roamed to new. */
2756 roamed = true;
2757 }
2758
2759 req_ie_len = 0;
2760 resp_ie_len = 0;
2761 req_ie = NULL;
2762 resp_ie = NULL;
2763
2764 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2765 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2766 if (!info) {
2767 /* No memory? Try resume work later */
2768 set_bit(WORK_LINK_UP, &priv->work_pending);
2769 queue_work(priv->workqueue, &priv->work);
2770 return;
2771 }
2772
2773 /* Get association info IEs from device. */
2774 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2775 if (!ret) {
2776 req_ie_len = le32_to_cpu(info->req_ie_length);
2777 if (req_ie_len > CONTROL_BUFFER_SIZE)
2778 req_ie_len = CONTROL_BUFFER_SIZE;
2779 if (req_ie_len != 0) {
2780 offset = le32_to_cpu(info->offset_req_ies);
2781
2782 if (offset > CONTROL_BUFFER_SIZE)
2783 offset = CONTROL_BUFFER_SIZE;
2784
2785 req_ie = (u8 *)info + offset;
2786
2787 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2788 req_ie_len =
2789 CONTROL_BUFFER_SIZE - offset;
2790 }
2791
2792 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2793 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2794 resp_ie_len = CONTROL_BUFFER_SIZE;
2795 if (resp_ie_len != 0) {
2796 offset = le32_to_cpu(info->offset_resp_ies);
2797
2798 if (offset > CONTROL_BUFFER_SIZE)
2799 offset = CONTROL_BUFFER_SIZE;
2800
2801 resp_ie = (u8 *)info + offset;
2802
2803 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2804 resp_ie_len =
2805 CONTROL_BUFFER_SIZE - offset;
2806 }
2807 } else {
2808 /* Since rndis_wlan_craft_connected_bss() might use info
2809 * later and expects info to contain valid data if
2810 * non-null, free info and set NULL here.
2811 */
2812 kfree(info);
2813 info = NULL;
2814 }
2815 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2816 return;
2817
2818 ret = get_bssid(usbdev, bssid);
2819 if (ret < 0)
2820 memset(bssid, 0, sizeof(bssid));
2821
2822 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2823 bssid, roamed ? " roamed" : "");
2824
2825 /* Internal bss list in device should contain at least the currently
2826 * connected bss and we can get it to cfg80211 with
2827 * rndis_check_bssid_list().
2828 *
2829 * NDIS spec says: "If the device is associated, but the associated
2830 * BSSID is not in its BSSID scan list, then the driver must add an
2831 * entry for the BSSID at the end of the data that it returns in
2832 * response to query of OID_802_11_BSSID_LIST."
2833 *
2834 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2835 */
2836 match_bss = false;
2837 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2838
2839 if (!is_zero_ether_addr(bssid) && !match_bss) {
2840 /* Couldn't get bss from device, we need to manually craft bss
2841 * for cfg80211.
2842 */
2843 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2844 }
2845
2846 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2847 if (!roamed)
2848 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2849 req_ie_len, resp_ie,
2850 resp_ie_len, 0, GFP_KERNEL);
2851 else
2852 cfg80211_roamed(usbdev->net,
2853 get_current_channel(usbdev, NULL),
2854 bssid, req_ie, req_ie_len,
2855 resp_ie, resp_ie_len, GFP_KERNEL);
2856 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2857 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2858
2859 if (info != NULL)
2860 kfree(info);
2861
2862 priv->connected = true;
2863 memcpy(priv->bssid, bssid, ETH_ALEN);
2864
2865 usbnet_resume_rx(usbdev);
2866 netif_carrier_on(usbdev->net);
2867 }
2868
2869 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2870 {
2871 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2872
2873 if (priv->connected) {
2874 priv->connected = false;
2875 memset(priv->bssid, 0, ETH_ALEN);
2876
2877 deauthenticate(usbdev);
2878
2879 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2880 }
2881
2882 netif_carrier_off(usbdev->net);
2883 }
2884
2885 static void rndis_wlan_worker(struct work_struct *work)
2886 {
2887 struct rndis_wlan_private *priv =
2888 container_of(work, struct rndis_wlan_private, work);
2889 struct usbnet *usbdev = priv->usbdev;
2890
2891 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2892 rndis_wlan_do_link_up_work(usbdev);
2893
2894 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2895 rndis_wlan_do_link_down_work(usbdev);
2896
2897 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2898 set_multicast_list(usbdev);
2899 }
2900
2901 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2902 {
2903 struct usbnet *usbdev = netdev_priv(dev);
2904 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2905
2906 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2907 return;
2908
2909 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2910 queue_work(priv->workqueue, &priv->work);
2911 }
2912
2913 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2914 struct ndis_80211_status_indication *indication,
2915 int len)
2916 {
2917 u8 *buf;
2918 const char *type;
2919 int flags, buflen, key_id;
2920 bool pairwise_error, group_error;
2921 struct ndis_80211_auth_request *auth_req;
2922 enum nl80211_key_type key_type;
2923
2924 /* must have at least one array entry */
2925 if (len < offsetof(struct ndis_80211_status_indication, u) +
2926 sizeof(struct ndis_80211_auth_request)) {
2927 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2928 len);
2929 return;
2930 }
2931
2932 buf = (void *)&indication->u.auth_request[0];
2933 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2934
2935 while (buflen >= sizeof(*auth_req)) {
2936 auth_req = (void *)buf;
2937 type = "unknown";
2938 flags = le32_to_cpu(auth_req->flags);
2939 pairwise_error = false;
2940 group_error = false;
2941
2942 if (flags & 0x1)
2943 type = "reauth request";
2944 if (flags & 0x2)
2945 type = "key update request";
2946 if (flags & 0x6) {
2947 pairwise_error = true;
2948 type = "pairwise_error";
2949 }
2950 if (flags & 0xe) {
2951 group_error = true;
2952 type = "group_error";
2953 }
2954
2955 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2956 type, le32_to_cpu(auth_req->flags));
2957
2958 if (pairwise_error) {
2959 key_type = NL80211_KEYTYPE_PAIRWISE;
2960 key_id = -1;
2961
2962 cfg80211_michael_mic_failure(usbdev->net,
2963 auth_req->bssid,
2964 key_type, key_id, NULL,
2965 GFP_KERNEL);
2966 }
2967
2968 if (group_error) {
2969 key_type = NL80211_KEYTYPE_GROUP;
2970 key_id = -1;
2971
2972 cfg80211_michael_mic_failure(usbdev->net,
2973 auth_req->bssid,
2974 key_type, key_id, NULL,
2975 GFP_KERNEL);
2976 }
2977
2978 buflen -= le32_to_cpu(auth_req->length);
2979 buf += le32_to_cpu(auth_req->length);
2980 }
2981 }
2982
2983 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2984 struct ndis_80211_status_indication *indication,
2985 int len)
2986 {
2987 struct ndis_80211_pmkid_cand_list *cand_list;
2988 int list_len, expected_len, i;
2989
2990 if (len < offsetof(struct ndis_80211_status_indication, u) +
2991 sizeof(struct ndis_80211_pmkid_cand_list)) {
2992 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2993 len);
2994 return;
2995 }
2996
2997 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2998 sizeof(struct ndis_80211_pmkid_candidate);
2999 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
3000 offsetof(struct ndis_80211_status_indication, u);
3001
3002 if (len < expected_len) {
3003 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
3004 len, expected_len);
3005 return;
3006 }
3007
3008 cand_list = &indication->u.cand_list;
3009
3010 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
3011 le32_to_cpu(cand_list->version),
3012 le32_to_cpu(cand_list->num_candidates));
3013
3014 if (le32_to_cpu(cand_list->version) != 1)
3015 return;
3016
3017 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3018 struct ndis_80211_pmkid_candidate *cand =
3019 &cand_list->candidate_list[i];
3020 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3021
3022 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3023 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3024
3025 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3026 preauth, GFP_ATOMIC);
3027 }
3028 }
3029
3030 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3031 struct rndis_indicate *msg, int buflen)
3032 {
3033 struct ndis_80211_status_indication *indication;
3034 unsigned int len, offset;
3035
3036 offset = offsetof(struct rndis_indicate, status) +
3037 le32_to_cpu(msg->offset);
3038 len = le32_to_cpu(msg->length);
3039
3040 if (len < 8) {
3041 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3042 len);
3043 return;
3044 }
3045
3046 if (len > buflen || offset > buflen || offset + len > buflen) {
3047 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3048 offset + len, buflen);
3049 return;
3050 }
3051
3052 indication = (void *)((u8 *)msg + offset);
3053
3054 switch (le32_to_cpu(indication->status_type)) {
3055 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3056 netdev_info(usbdev->net, "radio state indication: %i\n",
3057 le32_to_cpu(indication->u.radio_status));
3058 return;
3059
3060 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3061 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3062 le32_to_cpu(indication->u.media_stream_mode));
3063 return;
3064
3065 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3066 rndis_wlan_auth_indication(usbdev, indication, len);
3067 return;
3068
3069 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3070 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3071 return;
3072
3073 default:
3074 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3075 le32_to_cpu(indication->status_type));
3076 }
3077 }
3078
3079 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3080 {
3081 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3082 struct rndis_indicate *msg = ind;
3083
3084 switch (msg->status) {
3085 case RNDIS_STATUS_MEDIA_CONNECT:
3086 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
3087 /* OID_802_11_ADD_KEY causes sometimes extra
3088 * "media connect" indications which confuses driver
3089 * and userspace to think that device is
3090 * roaming/reassociating when it isn't.
3091 */
3092 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
3093 return;
3094 }
3095
3096 usbnet_pause_rx(usbdev);
3097
3098 netdev_info(usbdev->net, "media connect\n");
3099
3100 /* queue work to avoid recursive calls into rndis_command */
3101 set_bit(WORK_LINK_UP, &priv->work_pending);
3102 queue_work(priv->workqueue, &priv->work);
3103 break;
3104
3105 case RNDIS_STATUS_MEDIA_DISCONNECT:
3106 netdev_info(usbdev->net, "media disconnect\n");
3107
3108 /* queue work to avoid recursive calls into rndis_command */
3109 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3110 queue_work(priv->workqueue, &priv->work);
3111 break;
3112
3113 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3114 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3115 break;
3116
3117 default:
3118 netdev_info(usbdev->net, "indication: 0x%08x\n",
3119 le32_to_cpu(msg->status));
3120 break;
3121 }
3122 }
3123
3124 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3125 {
3126 struct {
3127 __le32 num_items;
3128 __le32 items[8];
3129 } networks_supported;
3130 struct ndis_80211_capability *caps;
3131 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3132 int len, retval, i, n;
3133 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3134
3135 /* determine supported modes */
3136 len = sizeof(networks_supported);
3137 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
3138 &networks_supported, &len);
3139 if (retval >= 0) {
3140 n = le32_to_cpu(networks_supported.num_items);
3141 if (n > 8)
3142 n = 8;
3143 for (i = 0; i < n; i++) {
3144 switch (le32_to_cpu(networks_supported.items[i])) {
3145 case NDIS_80211_TYPE_FREQ_HOP:
3146 case NDIS_80211_TYPE_DIRECT_SEQ:
3147 priv->caps |= CAP_MODE_80211B;
3148 break;
3149 case NDIS_80211_TYPE_OFDM_A:
3150 priv->caps |= CAP_MODE_80211A;
3151 break;
3152 case NDIS_80211_TYPE_OFDM_G:
3153 priv->caps |= CAP_MODE_80211G;
3154 break;
3155 }
3156 }
3157 }
3158
3159 /* get device 802.11 capabilities, number of PMKIDs */
3160 caps = (struct ndis_80211_capability *)caps_buf;
3161 len = sizeof(caps_buf);
3162 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3163 if (retval >= 0) {
3164 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3165 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3166 le32_to_cpu(caps->length),
3167 le32_to_cpu(caps->version),
3168 le32_to_cpu(caps->num_pmkids),
3169 le32_to_cpu(caps->num_auth_encr_pair));
3170 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3171 } else
3172 wiphy->max_num_pmkids = 0;
3173
3174 return retval;
3175 }
3176
3177 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3178 {
3179 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3180 enum nl80211_cqm_rssi_threshold_event event;
3181 int thold, hyst, last_event;
3182
3183 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3184 return;
3185 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3186 return;
3187
3188 last_event = priv->last_cqm_event_rssi;
3189 thold = priv->cqm_rssi_thold;
3190 hyst = priv->cqm_rssi_hyst;
3191
3192 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3193 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3194 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3195 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3196 else
3197 return;
3198
3199 priv->last_cqm_event_rssi = rssi;
3200 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3201 }
3202
3203 #define DEVICE_POLLER_JIFFIES (HZ)
3204 static void rndis_device_poller(struct work_struct *work)
3205 {
3206 struct rndis_wlan_private *priv =
3207 container_of(work, struct rndis_wlan_private,
3208 dev_poller_work.work);
3209 struct usbnet *usbdev = priv->usbdev;
3210 __le32 rssi, tmp;
3211 int len, ret, j;
3212 int update_jiffies = DEVICE_POLLER_JIFFIES;
3213 void *buf;
3214
3215 /* Only check/do workaround when connected. Calling is_associated()
3216 * also polls device with rndis_command() and catches for media link
3217 * indications.
3218 */
3219 if (!is_associated(usbdev)) {
3220 /* Workaround bad scanning in BCM4320a devices with active
3221 * background scanning when not associated.
3222 */
3223 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3224 !priv->scan_request) {
3225 /* Get previous scan results */
3226 rndis_check_bssid_list(usbdev, NULL, NULL);
3227
3228 /* Initiate new scan */
3229 rndis_start_bssid_list_scan(usbdev);
3230 }
3231
3232 goto end;
3233 }
3234
3235 len = sizeof(rssi);
3236 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
3237 if (ret == 0) {
3238 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3239 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3240 }
3241
3242 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3243 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3244
3245 /* Workaround transfer stalls on poor quality links.
3246 * TODO: find right way to fix these stalls (as stalls do not happen
3247 * with ndiswrapper/windows driver). */
3248 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3249 /* Decrease stats worker interval to catch stalls.
3250 * faster. Faster than 400-500ms causes packet loss,
3251 * Slower doesn't catch stalls fast enough.
3252 */
3253 j = msecs_to_jiffies(priv->param_workaround_interval);
3254 if (j > DEVICE_POLLER_JIFFIES)
3255 j = DEVICE_POLLER_JIFFIES;
3256 else if (j <= 0)
3257 j = 1;
3258 update_jiffies = j;
3259
3260 /* Send scan OID. Use of both OIDs is required to get device
3261 * working.
3262 */
3263 tmp = cpu_to_le32(1);
3264 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3265 sizeof(tmp));
3266
3267 len = CONTROL_BUFFER_SIZE;
3268 buf = kmalloc(len, GFP_KERNEL);
3269 if (!buf)
3270 goto end;
3271
3272 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3273 kfree(buf);
3274 }
3275
3276 end:
3277 if (update_jiffies >= HZ)
3278 update_jiffies = round_jiffies_relative(update_jiffies);
3279 else {
3280 j = round_jiffies_relative(update_jiffies);
3281 if (abs(j - update_jiffies) <= 10)
3282 update_jiffies = j;
3283 }
3284
3285 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3286 update_jiffies);
3287 }
3288
3289 /*
3290 * driver/device initialization
3291 */
3292 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3293 {
3294 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3295
3296 priv->device_type = device_type;
3297
3298 priv->param_country[0] = modparam_country[0];
3299 priv->param_country[1] = modparam_country[1];
3300 priv->param_country[2] = 0;
3301 priv->param_frameburst = modparam_frameburst;
3302 priv->param_afterburner = modparam_afterburner;
3303 priv->param_power_save = modparam_power_save;
3304 priv->param_power_output = modparam_power_output;
3305 priv->param_roamtrigger = modparam_roamtrigger;
3306 priv->param_roamdelta = modparam_roamdelta;
3307
3308 priv->param_country[0] = toupper(priv->param_country[0]);
3309 priv->param_country[1] = toupper(priv->param_country[1]);
3310 /* doesn't support EU as country code, use FI instead */
3311 if (!strcmp(priv->param_country, "EU"))
3312 strcpy(priv->param_country, "FI");
3313
3314 if (priv->param_power_save < 0)
3315 priv->param_power_save = 0;
3316 else if (priv->param_power_save > 2)
3317 priv->param_power_save = 2;
3318
3319 if (priv->param_power_output < 0)
3320 priv->param_power_output = 0;
3321 else if (priv->param_power_output > 3)
3322 priv->param_power_output = 3;
3323
3324 if (priv->param_roamtrigger < -80)
3325 priv->param_roamtrigger = -80;
3326 else if (priv->param_roamtrigger > -60)
3327 priv->param_roamtrigger = -60;
3328
3329 if (priv->param_roamdelta < 0)
3330 priv->param_roamdelta = 0;
3331 else if (priv->param_roamdelta > 2)
3332 priv->param_roamdelta = 2;
3333
3334 if (modparam_workaround_interval < 0)
3335 priv->param_workaround_interval = 500;
3336 else
3337 priv->param_workaround_interval = modparam_workaround_interval;
3338 }
3339
3340 static int unknown_early_init(struct usbnet *usbdev)
3341 {
3342 /* copy module parameters for unknown so that iwconfig reports txpower
3343 * and workaround parameter is copied to private structure correctly.
3344 */
3345 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3346
3347 /* This is unknown device, so do not try set configuration parameters.
3348 */
3349
3350 return 0;
3351 }
3352
3353 static int bcm4320a_early_init(struct usbnet *usbdev)
3354 {
3355 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3356 * and workaround parameter is copied to private structure correctly.
3357 */
3358 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3359
3360 /* bcm4320a doesn't handle configuration parameters well. Try
3361 * set any and you get partially zeroed mac and broken device.
3362 */
3363
3364 return 0;
3365 }
3366
3367 static int bcm4320b_early_init(struct usbnet *usbdev)
3368 {
3369 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3370 char buf[8];
3371
3372 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3373
3374 /* Early initialization settings, setting these won't have effect
3375 * if called after generic_rndis_bind().
3376 */
3377
3378 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3379 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3380 priv->param_frameburst ? "1" : "0");
3381 rndis_set_config_parameter_str(usbdev, "Afterburner",
3382 priv->param_afterburner ? "1" : "0");
3383 sprintf(buf, "%d", priv->param_power_save);
3384 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3385 sprintf(buf, "%d", priv->param_power_output);
3386 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3387 sprintf(buf, "%d", priv->param_roamtrigger);
3388 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3389 sprintf(buf, "%d", priv->param_roamdelta);
3390 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3391
3392 return 0;
3393 }
3394
3395 /* same as rndis_netdev_ops but with local multicast handler */
3396 static const struct net_device_ops rndis_wlan_netdev_ops = {
3397 .ndo_open = usbnet_open,
3398 .ndo_stop = usbnet_stop,
3399 .ndo_start_xmit = usbnet_start_xmit,
3400 .ndo_tx_timeout = usbnet_tx_timeout,
3401 .ndo_set_mac_address = eth_mac_addr,
3402 .ndo_validate_addr = eth_validate_addr,
3403 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3404 };
3405
3406 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3407 {
3408 struct wiphy *wiphy;
3409 struct rndis_wlan_private *priv;
3410 int retval, len;
3411 __le32 tmp;
3412
3413 /* allocate wiphy and rndis private data
3414 * NOTE: We only support a single virtual interface, so wiphy
3415 * and wireless_dev are somewhat synonymous for this device.
3416 */
3417 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3418 if (!wiphy)
3419 return -ENOMEM;
3420
3421 priv = wiphy_priv(wiphy);
3422 usbdev->net->ieee80211_ptr = &priv->wdev;
3423 priv->wdev.wiphy = wiphy;
3424 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3425
3426 /* These have to be initialized before calling generic_rndis_bind().
3427 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3428 */
3429 usbdev->driver_priv = priv;
3430 priv->usbdev = usbdev;
3431
3432 mutex_init(&priv->command_lock);
3433
3434 /* because rndis_command() sleeps we need to use workqueue */
3435 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3436 INIT_WORK(&priv->work, rndis_wlan_worker);
3437 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3438 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3439
3440 /* try bind rndis_host */
3441 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3442 if (retval < 0)
3443 goto fail;
3444
3445 /* generic_rndis_bind set packet filter to multicast_all+
3446 * promisc mode which doesn't work well for our devices (device
3447 * picks up rssi to closest station instead of to access point).
3448 *
3449 * rndis_host wants to avoid all OID as much as possible
3450 * so do promisc/multicast handling in rndis_wlan.
3451 */
3452 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3453
3454 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3455 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3456 sizeof(tmp));
3457
3458 len = sizeof(tmp);
3459 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3460 &len);
3461 priv->multicast_size = le32_to_cpu(tmp);
3462 if (retval < 0 || priv->multicast_size < 0)
3463 priv->multicast_size = 0;
3464 if (priv->multicast_size > 0)
3465 usbdev->net->flags |= IFF_MULTICAST;
3466 else
3467 usbdev->net->flags &= ~IFF_MULTICAST;
3468
3469 /* fill-out wiphy structure and register w/ cfg80211 */
3470 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3471 wiphy->privid = rndis_wiphy_privid;
3472 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3473 | BIT(NL80211_IFTYPE_ADHOC);
3474 wiphy->max_scan_ssids = 1;
3475
3476 /* TODO: fill-out band/encr information based on priv->caps */
3477 rndis_wlan_get_caps(usbdev, wiphy);
3478
3479 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3480 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3481 priv->band.channels = priv->channels;
3482 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3483 priv->band.bitrates = priv->rates;
3484 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3485 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3486 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3487
3488 memcpy(priv->cipher_suites, rndis_cipher_suites,
3489 sizeof(rndis_cipher_suites));
3490 wiphy->cipher_suites = priv->cipher_suites;
3491 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3492
3493 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3494
3495 if (wiphy_register(wiphy)) {
3496 retval = -ENODEV;
3497 goto fail;
3498 }
3499
3500 set_default_iw_params(usbdev);
3501
3502 priv->power_mode = -1;
3503
3504 /* set default rts/frag */
3505 rndis_set_wiphy_params(wiphy,
3506 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3507
3508 /* turn radio off on init */
3509 priv->radio_on = false;
3510 disassociate(usbdev, false);
3511 netif_carrier_off(usbdev->net);
3512
3513 return 0;
3514
3515 fail:
3516 cancel_delayed_work_sync(&priv->dev_poller_work);
3517 cancel_delayed_work_sync(&priv->scan_work);
3518 cancel_work_sync(&priv->work);
3519 flush_workqueue(priv->workqueue);
3520 destroy_workqueue(priv->workqueue);
3521
3522 wiphy_free(wiphy);
3523 return retval;
3524 }
3525
3526 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3527 {
3528 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3529
3530 /* turn radio off */
3531 disassociate(usbdev, false);
3532
3533 cancel_delayed_work_sync(&priv->dev_poller_work);
3534 cancel_delayed_work_sync(&priv->scan_work);
3535 cancel_work_sync(&priv->work);
3536 flush_workqueue(priv->workqueue);
3537 destroy_workqueue(priv->workqueue);
3538
3539 rndis_unbind(usbdev, intf);
3540
3541 wiphy_unregister(priv->wdev.wiphy);
3542 wiphy_free(priv->wdev.wiphy);
3543 }
3544
3545 static int rndis_wlan_reset(struct usbnet *usbdev)
3546 {
3547 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3548 int retval;
3549
3550 netdev_dbg(usbdev->net, "%s()\n", __func__);
3551
3552 retval = rndis_reset(usbdev);
3553 if (retval)
3554 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3555
3556 /* rndis_reset cleared multicast list, so restore here.
3557 (set_multicast_list() also turns on current packet filter) */
3558 set_multicast_list(usbdev);
3559
3560 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3561 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3562
3563 return deauthenticate(usbdev);
3564 }
3565
3566 static int rndis_wlan_stop(struct usbnet *usbdev)
3567 {
3568 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3569 int retval;
3570 __le32 filter;
3571
3572 netdev_dbg(usbdev->net, "%s()\n", __func__);
3573
3574 retval = disassociate(usbdev, false);
3575
3576 priv->work_pending = 0;
3577 cancel_delayed_work_sync(&priv->dev_poller_work);
3578 cancel_delayed_work_sync(&priv->scan_work);
3579 cancel_work_sync(&priv->work);
3580 flush_workqueue(priv->workqueue);
3581
3582 if (priv->scan_request) {
3583 cfg80211_scan_done(priv->scan_request, true);
3584 priv->scan_request = NULL;
3585 }
3586
3587 /* Set current packet filter zero to block receiving data packets from
3588 device. */
3589 filter = 0;
3590 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3591 sizeof(filter));
3592
3593 return retval;
3594 }
3595
3596 static const struct driver_info bcm4320b_info = {
3597 .description = "Wireless RNDIS device, BCM4320b based",
3598 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3599 FLAG_AVOID_UNLINK_URBS,
3600 .bind = rndis_wlan_bind,
3601 .unbind = rndis_wlan_unbind,
3602 .status = rndis_status,
3603 .rx_fixup = rndis_rx_fixup,
3604 .tx_fixup = rndis_tx_fixup,
3605 .reset = rndis_wlan_reset,
3606 .stop = rndis_wlan_stop,
3607 .early_init = bcm4320b_early_init,
3608 .indication = rndis_wlan_indication,
3609 };
3610
3611 static const struct driver_info bcm4320a_info = {
3612 .description = "Wireless RNDIS device, BCM4320a based",
3613 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3614 FLAG_AVOID_UNLINK_URBS,
3615 .bind = rndis_wlan_bind,
3616 .unbind = rndis_wlan_unbind,
3617 .status = rndis_status,
3618 .rx_fixup = rndis_rx_fixup,
3619 .tx_fixup = rndis_tx_fixup,
3620 .reset = rndis_wlan_reset,
3621 .stop = rndis_wlan_stop,
3622 .early_init = bcm4320a_early_init,
3623 .indication = rndis_wlan_indication,
3624 };
3625
3626 static const struct driver_info rndis_wlan_info = {
3627 .description = "Wireless RNDIS device",
3628 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3629 FLAG_AVOID_UNLINK_URBS,
3630 .bind = rndis_wlan_bind,
3631 .unbind = rndis_wlan_unbind,
3632 .status = rndis_status,
3633 .rx_fixup = rndis_rx_fixup,
3634 .tx_fixup = rndis_tx_fixup,
3635 .reset = rndis_wlan_reset,
3636 .stop = rndis_wlan_stop,
3637 .early_init = unknown_early_init,
3638 .indication = rndis_wlan_indication,
3639 };
3640
3641 /*-------------------------------------------------------------------------*/
3642
3643 static const struct usb_device_id products [] = {
3644 #define RNDIS_MASTER_INTERFACE \
3645 .bInterfaceClass = USB_CLASS_COMM, \
3646 .bInterfaceSubClass = 2 /* ACM */, \
3647 .bInterfaceProtocol = 0x0ff
3648
3649 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3650 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3651 */
3652 {
3653 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3654 | USB_DEVICE_ID_MATCH_DEVICE,
3655 .idVendor = 0x0411,
3656 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3657 RNDIS_MASTER_INTERFACE,
3658 .driver_info = (unsigned long) &bcm4320b_info,
3659 }, {
3660 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3661 | USB_DEVICE_ID_MATCH_DEVICE,
3662 .idVendor = 0x0baf,
3663 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3664 RNDIS_MASTER_INTERFACE,
3665 .driver_info = (unsigned long) &bcm4320b_info,
3666 }, {
3667 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3668 | USB_DEVICE_ID_MATCH_DEVICE,
3669 .idVendor = 0x050d,
3670 .idProduct = 0x011b, /* Belkin F5D7051 */
3671 RNDIS_MASTER_INTERFACE,
3672 .driver_info = (unsigned long) &bcm4320b_info,
3673 }, {
3674 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3675 | USB_DEVICE_ID_MATCH_DEVICE,
3676 .idVendor = 0x1799, /* Belkin has two vendor ids */
3677 .idProduct = 0x011b, /* Belkin F5D7051 */
3678 RNDIS_MASTER_INTERFACE,
3679 .driver_info = (unsigned long) &bcm4320b_info,
3680 }, {
3681 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3682 | USB_DEVICE_ID_MATCH_DEVICE,
3683 .idVendor = 0x13b1,
3684 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3685 RNDIS_MASTER_INTERFACE,
3686 .driver_info = (unsigned long) &bcm4320b_info,
3687 }, {
3688 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3689 | USB_DEVICE_ID_MATCH_DEVICE,
3690 .idVendor = 0x13b1,
3691 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3692 RNDIS_MASTER_INTERFACE,
3693 .driver_info = (unsigned long) &bcm4320b_info,
3694 }, {
3695 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3696 | USB_DEVICE_ID_MATCH_DEVICE,
3697 .idVendor = 0x0b05,
3698 .idProduct = 0x1717, /* Asus WL169gE */
3699 RNDIS_MASTER_INTERFACE,
3700 .driver_info = (unsigned long) &bcm4320b_info,
3701 }, {
3702 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3703 | USB_DEVICE_ID_MATCH_DEVICE,
3704 .idVendor = 0x0a5c,
3705 .idProduct = 0xd11b, /* Eminent EM4045 */
3706 RNDIS_MASTER_INTERFACE,
3707 .driver_info = (unsigned long) &bcm4320b_info,
3708 }, {
3709 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3710 | USB_DEVICE_ID_MATCH_DEVICE,
3711 .idVendor = 0x1690,
3712 .idProduct = 0x0715, /* BT Voyager 1055 */
3713 RNDIS_MASTER_INTERFACE,
3714 .driver_info = (unsigned long) &bcm4320b_info,
3715 },
3716 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3717 * parameters available, hardware probably contain older firmware version with
3718 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3719 */
3720 {
3721 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3722 | USB_DEVICE_ID_MATCH_DEVICE,
3723 .idVendor = 0x13b1,
3724 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3725 RNDIS_MASTER_INTERFACE,
3726 .driver_info = (unsigned long) &bcm4320a_info,
3727 }, {
3728 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3729 | USB_DEVICE_ID_MATCH_DEVICE,
3730 .idVendor = 0x0baf,
3731 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3732 RNDIS_MASTER_INTERFACE,
3733 .driver_info = (unsigned long) &bcm4320a_info,
3734 }, {
3735 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3736 | USB_DEVICE_ID_MATCH_DEVICE,
3737 .idVendor = 0x0411,
3738 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3739 RNDIS_MASTER_INTERFACE,
3740 .driver_info = (unsigned long) &bcm4320a_info,
3741 },
3742 /* Generic Wireless RNDIS devices that we don't have exact
3743 * idVendor/idProduct/chip yet.
3744 */
3745 {
3746 /* RNDIS is MSFT's un-official variant of CDC ACM */
3747 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3748 .driver_info = (unsigned long) &rndis_wlan_info,
3749 }, {
3750 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3751 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3752 .driver_info = (unsigned long) &rndis_wlan_info,
3753 },
3754 { }, // END
3755 };
3756 MODULE_DEVICE_TABLE(usb, products);
3757
3758 static struct usb_driver rndis_wlan_driver = {
3759 .name = "rndis_wlan",
3760 .id_table = products,
3761 .probe = usbnet_probe,
3762 .disconnect = usbnet_disconnect,
3763 .suspend = usbnet_suspend,
3764 .resume = usbnet_resume,
3765 };
3766
3767 module_usb_driver(rndis_wlan_driver);
3768
3769 MODULE_AUTHOR("Bjorge Dijkstra");
3770 MODULE_AUTHOR("Jussi Kivilinna");
3771 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3772 MODULE_LICENSE("GPL");
3773
Linux kernel - Deliverables
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