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rndis_wlan: add range check in del_key()
[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 struct ndis_80211_auth_request {
248 __le32 length;
249 u8 bssid[6];
250 u8 padding[2];
251 __le32 flags;
252 } __packed;
253
254 struct ndis_80211_pmkid_candidate {
255 u8 bssid[6];
256 u8 padding[2];
257 __le32 flags;
258 } __packed;
259
260 struct ndis_80211_pmkid_cand_list {
261 __le32 version;
262 __le32 num_candidates;
263 struct ndis_80211_pmkid_candidate candidate_list[0];
264 } __packed;
265
266 struct ndis_80211_status_indication {
267 __le32 status_type;
268 union {
269 __le32 media_stream_mode;
270 __le32 radio_status;
271 struct ndis_80211_auth_request auth_request[0];
272 struct ndis_80211_pmkid_cand_list cand_list;
273 } u;
274 } __packed;
275
276 struct ndis_80211_ssid {
277 __le32 length;
278 u8 essid[NDIS_802_11_LENGTH_SSID];
279 } __packed;
280
281 struct ndis_80211_conf_freq_hop {
282 __le32 length;
283 __le32 hop_pattern;
284 __le32 hop_set;
285 __le32 dwell_time;
286 } __packed;
287
288 struct ndis_80211_conf {
289 __le32 length;
290 __le32 beacon_period;
291 __le32 atim_window;
292 __le32 ds_config;
293 struct ndis_80211_conf_freq_hop fh_config;
294 } __packed;
295
296 struct ndis_80211_bssid_ex {
297 __le32 length;
298 u8 mac[6];
299 u8 padding[2];
300 struct ndis_80211_ssid ssid;
301 __le32 privacy;
302 __le32 rssi;
303 __le32 net_type;
304 struct ndis_80211_conf config;
305 __le32 net_infra;
306 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
307 __le32 ie_length;
308 u8 ies[0];
309 } __packed;
310
311 struct ndis_80211_bssid_list_ex {
312 __le32 num_items;
313 struct ndis_80211_bssid_ex bssid[0];
314 } __packed;
315
316 struct ndis_80211_fixed_ies {
317 u8 timestamp[8];
318 __le16 beacon_interval;
319 __le16 capabilities;
320 } __packed;
321
322 struct ndis_80211_wep_key {
323 __le32 size;
324 __le32 index;
325 __le32 length;
326 u8 material[32];
327 } __packed;
328
329 struct ndis_80211_key {
330 __le32 size;
331 __le32 index;
332 __le32 length;
333 u8 bssid[6];
334 u8 padding[6];
335 u8 rsc[8];
336 u8 material[32];
337 } __packed;
338
339 struct ndis_80211_remove_key {
340 __le32 size;
341 __le32 index;
342 u8 bssid[6];
343 u8 padding[2];
344 } __packed;
345
346 struct ndis_config_param {
347 __le32 name_offs;
348 __le32 name_length;
349 __le32 type;
350 __le32 value_offs;
351 __le32 value_length;
352 } __packed;
353
354 struct ndis_80211_assoc_info {
355 __le32 length;
356 __le16 req_ies;
357 struct req_ie {
358 __le16 capa;
359 __le16 listen_interval;
360 u8 cur_ap_address[6];
361 } req_ie;
362 __le32 req_ie_length;
363 __le32 offset_req_ies;
364 __le16 resp_ies;
365 struct resp_ie {
366 __le16 capa;
367 __le16 status_code;
368 __le16 assoc_id;
369 } resp_ie;
370 __le32 resp_ie_length;
371 __le32 offset_resp_ies;
372 } __packed;
373
374 struct ndis_80211_auth_encr_pair {
375 __le32 auth_mode;
376 __le32 encr_mode;
377 } __packed;
378
379 struct ndis_80211_capability {
380 __le32 length;
381 __le32 version;
382 __le32 num_pmkids;
383 __le32 num_auth_encr_pair;
384 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
385 } __packed;
386
387 struct ndis_80211_bssid_info {
388 u8 bssid[6];
389 u8 pmkid[16];
390 };
391
392 struct ndis_80211_pmkid {
393 __le32 length;
394 __le32 bssid_info_count;
395 struct ndis_80211_bssid_info bssid_info[0];
396 };
397
398 /*
399 * private data
400 */
401 #define NET_TYPE_11FB 0
402
403 #define CAP_MODE_80211A 1
404 #define CAP_MODE_80211B 2
405 #define CAP_MODE_80211G 4
406 #define CAP_MODE_MASK 7
407
408 #define WORK_LINK_UP (1<<0)
409 #define WORK_LINK_DOWN (1<<1)
410 #define WORK_SET_MULTICAST_LIST (1<<2)
411
412 #define RNDIS_WLAN_ALG_NONE 0
413 #define RNDIS_WLAN_ALG_WEP (1<<0)
414 #define RNDIS_WLAN_ALG_TKIP (1<<1)
415 #define RNDIS_WLAN_ALG_CCMP (1<<2)
416
417 #define RNDIS_WLAN_NUM_KEYS 4
418 #define RNDIS_WLAN_KEY_MGMT_NONE 0
419 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
420 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
421
422 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
423
424 static const struct ieee80211_channel rndis_channels[] = {
425 { .center_freq = 2412 },
426 { .center_freq = 2417 },
427 { .center_freq = 2422 },
428 { .center_freq = 2427 },
429 { .center_freq = 2432 },
430 { .center_freq = 2437 },
431 { .center_freq = 2442 },
432 { .center_freq = 2447 },
433 { .center_freq = 2452 },
434 { .center_freq = 2457 },
435 { .center_freq = 2462 },
436 { .center_freq = 2467 },
437 { .center_freq = 2472 },
438 { .center_freq = 2484 },
439 };
440
441 static const struct ieee80211_rate rndis_rates[] = {
442 { .bitrate = 10 },
443 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
444 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
445 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
446 { .bitrate = 60 },
447 { .bitrate = 90 },
448 { .bitrate = 120 },
449 { .bitrate = 180 },
450 { .bitrate = 240 },
451 { .bitrate = 360 },
452 { .bitrate = 480 },
453 { .bitrate = 540 }
454 };
455
456 static const u32 rndis_cipher_suites[] = {
457 WLAN_CIPHER_SUITE_WEP40,
458 WLAN_CIPHER_SUITE_WEP104,
459 WLAN_CIPHER_SUITE_TKIP,
460 WLAN_CIPHER_SUITE_CCMP,
461 };
462
463 struct rndis_wlan_encr_key {
464 int len;
465 u32 cipher;
466 u8 material[32];
467 u8 bssid[ETH_ALEN];
468 bool pairwise;
469 bool tx_key;
470 };
471
472 /* RNDIS device private data */
473 struct rndis_wlan_private {
474 struct usbnet *usbdev;
475
476 struct wireless_dev wdev;
477
478 struct cfg80211_scan_request *scan_request;
479
480 struct workqueue_struct *workqueue;
481 struct delayed_work dev_poller_work;
482 struct delayed_work scan_work;
483 struct work_struct work;
484 struct mutex command_lock;
485 unsigned long work_pending;
486 int last_qual;
487 s32 cqm_rssi_thold;
488 u32 cqm_rssi_hyst;
489 int last_cqm_event_rssi;
490
491 struct ieee80211_supported_band band;
492 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
493 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
494 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
495
496 int device_type;
497 int caps;
498 int multicast_size;
499
500 /* module parameters */
501 char param_country[4];
502 int param_frameburst;
503 int param_afterburner;
504 int param_power_save;
505 int param_power_output;
506 int param_roamtrigger;
507 int param_roamdelta;
508 u32 param_workaround_interval;
509
510 /* hardware state */
511 bool radio_on;
512 int power_mode;
513 int infra_mode;
514 bool connected;
515 u8 bssid[ETH_ALEN];
516 __le32 current_command_oid;
517
518 /* encryption stuff */
519 int encr_tx_key_index;
520 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
521 int wpa_version;
522
523 u8 command_buffer[COMMAND_BUFFER_SIZE];
524 };
525
526 /*
527 * cfg80211 ops
528 */
529 static int rndis_change_virtual_intf(struct wiphy *wiphy,
530 struct net_device *dev,
531 enum nl80211_iftype type, u32 *flags,
532 struct vif_params *params);
533
534 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
535 struct cfg80211_scan_request *request);
536
537 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
538
539 static int rndis_set_tx_power(struct wiphy *wiphy,
540 enum nl80211_tx_power_setting type,
541 int mbm);
542 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
543
544 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
545 struct cfg80211_connect_params *sme);
546
547 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
548 u16 reason_code);
549
550 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
551 struct cfg80211_ibss_params *params);
552
553 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
554
555 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
556 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
557
558 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
559 u8 key_index, bool pairwise, const u8 *mac_addr,
560 struct key_params *params);
561
562 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
563 u8 key_index, bool pairwise, const u8 *mac_addr);
564
565 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
566 u8 key_index, bool unicast, bool multicast);
567
568 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
569 u8 *mac, struct station_info *sinfo);
570
571 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
572 int idx, u8 *mac, struct station_info *sinfo);
573
574 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
575 struct cfg80211_pmksa *pmksa);
576
577 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
578 struct cfg80211_pmksa *pmksa);
579
580 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
581
582 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
583 bool enabled, int timeout);
584
585 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
586 struct net_device *dev,
587 s32 rssi_thold, u32 rssi_hyst);
588
589 static const struct cfg80211_ops rndis_config_ops = {
590 .change_virtual_intf = rndis_change_virtual_intf,
591 .scan = rndis_scan,
592 .set_wiphy_params = rndis_set_wiphy_params,
593 .set_tx_power = rndis_set_tx_power,
594 .get_tx_power = rndis_get_tx_power,
595 .connect = rndis_connect,
596 .disconnect = rndis_disconnect,
597 .join_ibss = rndis_join_ibss,
598 .leave_ibss = rndis_leave_ibss,
599 .set_channel = rndis_set_channel,
600 .add_key = rndis_add_key,
601 .del_key = rndis_del_key,
602 .set_default_key = rndis_set_default_key,
603 .get_station = rndis_get_station,
604 .dump_station = rndis_dump_station,
605 .set_pmksa = rndis_set_pmksa,
606 .del_pmksa = rndis_del_pmksa,
607 .flush_pmksa = rndis_flush_pmksa,
608 .set_power_mgmt = rndis_set_power_mgmt,
609 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
610 };
611
612 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
613
614
615 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
616 {
617 return (struct rndis_wlan_private *)dev->driver_priv;
618 }
619
620 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
621 {
622 switch (priv->param_power_output) {
623 default:
624 case 3:
625 return BCM4320_DEFAULT_TXPOWER_DBM_100;
626 case 2:
627 return BCM4320_DEFAULT_TXPOWER_DBM_75;
628 case 1:
629 return BCM4320_DEFAULT_TXPOWER_DBM_50;
630 case 0:
631 return BCM4320_DEFAULT_TXPOWER_DBM_25;
632 }
633 }
634
635 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
636 {
637 int cipher = priv->encr_keys[idx].cipher;
638
639 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
640 cipher == WLAN_CIPHER_SUITE_TKIP);
641 }
642
643 static int rndis_cipher_to_alg(u32 cipher)
644 {
645 switch (cipher) {
646 default:
647 return RNDIS_WLAN_ALG_NONE;
648 case WLAN_CIPHER_SUITE_WEP40:
649 case WLAN_CIPHER_SUITE_WEP104:
650 return RNDIS_WLAN_ALG_WEP;
651 case WLAN_CIPHER_SUITE_TKIP:
652 return RNDIS_WLAN_ALG_TKIP;
653 case WLAN_CIPHER_SUITE_CCMP:
654 return RNDIS_WLAN_ALG_CCMP;
655 }
656 }
657
658 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
659 {
660 switch (akm_suite) {
661 default:
662 return RNDIS_WLAN_KEY_MGMT_NONE;
663 case WLAN_AKM_SUITE_8021X:
664 return RNDIS_WLAN_KEY_MGMT_802_1X;
665 case WLAN_AKM_SUITE_PSK:
666 return RNDIS_WLAN_KEY_MGMT_PSK;
667 }
668 }
669
670 #ifdef DEBUG
671 static const char *oid_to_string(__le32 oid)
672 {
673 switch (oid) {
674 #define OID_STR(oid) case oid: return(#oid)
675 /* from rndis_host.h */
676 OID_STR(OID_802_3_PERMANENT_ADDRESS);
677 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
678 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
679 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
680
681 /* from rndis_wlan.c */
682 OID_STR(OID_GEN_LINK_SPEED);
683 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
684
685 OID_STR(OID_GEN_XMIT_OK);
686 OID_STR(OID_GEN_RCV_OK);
687 OID_STR(OID_GEN_XMIT_ERROR);
688 OID_STR(OID_GEN_RCV_ERROR);
689 OID_STR(OID_GEN_RCV_NO_BUFFER);
690
691 OID_STR(OID_802_3_CURRENT_ADDRESS);
692 OID_STR(OID_802_3_MULTICAST_LIST);
693 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
694
695 OID_STR(OID_802_11_BSSID);
696 OID_STR(OID_802_11_SSID);
697 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
698 OID_STR(OID_802_11_ADD_WEP);
699 OID_STR(OID_802_11_REMOVE_WEP);
700 OID_STR(OID_802_11_DISASSOCIATE);
701 OID_STR(OID_802_11_AUTHENTICATION_MODE);
702 OID_STR(OID_802_11_PRIVACY_FILTER);
703 OID_STR(OID_802_11_BSSID_LIST_SCAN);
704 OID_STR(OID_802_11_ENCRYPTION_STATUS);
705 OID_STR(OID_802_11_ADD_KEY);
706 OID_STR(OID_802_11_REMOVE_KEY);
707 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
708 OID_STR(OID_802_11_CAPABILITY);
709 OID_STR(OID_802_11_PMKID);
710 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
711 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
712 OID_STR(OID_802_11_TX_POWER_LEVEL);
713 OID_STR(OID_802_11_RSSI);
714 OID_STR(OID_802_11_RSSI_TRIGGER);
715 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
716 OID_STR(OID_802_11_RTS_THRESHOLD);
717 OID_STR(OID_802_11_SUPPORTED_RATES);
718 OID_STR(OID_802_11_CONFIGURATION);
719 OID_STR(OID_802_11_POWER_MODE);
720 OID_STR(OID_802_11_BSSID_LIST);
721 #undef OID_STR
722 }
723
724 return "?";
725 }
726 #else
727 static const char *oid_to_string(__le32 oid)
728 {
729 return "?";
730 }
731 #endif
732
733 /* translate error code */
734 static int rndis_error_status(__le32 rndis_status)
735 {
736 int ret = -EINVAL;
737 switch (rndis_status) {
738 case RNDIS_STATUS_SUCCESS:
739 ret = 0;
740 break;
741 case RNDIS_STATUS_FAILURE:
742 case RNDIS_STATUS_INVALID_DATA:
743 ret = -EINVAL;
744 break;
745 case RNDIS_STATUS_NOT_SUPPORTED:
746 ret = -EOPNOTSUPP;
747 break;
748 case RNDIS_STATUS_ADAPTER_NOT_READY:
749 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
750 ret = -EBUSY;
751 break;
752 }
753 return ret;
754 }
755
756 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
757 {
758 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
759 union {
760 void *buf;
761 struct rndis_msg_hdr *header;
762 struct rndis_query *get;
763 struct rndis_query_c *get_c;
764 } u;
765 int ret, buflen;
766 int resplen, respoffs, copylen;
767
768 buflen = *len + sizeof(*u.get);
769 if (buflen < CONTROL_BUFFER_SIZE)
770 buflen = CONTROL_BUFFER_SIZE;
771
772 if (buflen > COMMAND_BUFFER_SIZE) {
773 u.buf = kmalloc(buflen, GFP_KERNEL);
774 if (!u.buf)
775 return -ENOMEM;
776 } else {
777 u.buf = priv->command_buffer;
778 }
779
780 mutex_lock(&priv->command_lock);
781
782 memset(u.get, 0, sizeof *u.get);
783 u.get->msg_type = RNDIS_MSG_QUERY;
784 u.get->msg_len = cpu_to_le32(sizeof *u.get);
785 u.get->oid = oid;
786
787 priv->current_command_oid = oid;
788 ret = rndis_command(dev, u.header, buflen);
789 priv->current_command_oid = 0;
790 if (ret < 0)
791 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
792 __func__, oid_to_string(oid), ret,
793 le32_to_cpu(u.get_c->status));
794
795 if (ret == 0) {
796 resplen = le32_to_cpu(u.get_c->len);
797 respoffs = le32_to_cpu(u.get_c->offset) + 8;
798
799 if (respoffs > buflen) {
800 /* Device returned data offset outside buffer, error. */
801 netdev_dbg(dev->net, "%s(%s): received invalid "
802 "data offset: %d > %d\n", __func__,
803 oid_to_string(oid), respoffs, buflen);
804
805 ret = -EINVAL;
806 goto exit_unlock;
807 }
808
809 if ((resplen + respoffs) > buflen) {
810 /* Device would have returned more data if buffer would
811 * have been big enough. Copy just the bits that we got.
812 */
813 copylen = buflen - respoffs;
814 } else {
815 copylen = resplen;
816 }
817
818 if (copylen > *len)
819 copylen = *len;
820
821 memcpy(data, u.buf + respoffs, copylen);
822
823 *len = resplen;
824
825 ret = rndis_error_status(u.get_c->status);
826 if (ret < 0)
827 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
828 __func__, oid_to_string(oid),
829 le32_to_cpu(u.get_c->status), ret);
830 }
831
832 exit_unlock:
833 mutex_unlock(&priv->command_lock);
834
835 if (u.buf != priv->command_buffer)
836 kfree(u.buf);
837 return ret;
838 }
839
840 static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
841 int len)
842 {
843 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
844 union {
845 void *buf;
846 struct rndis_msg_hdr *header;
847 struct rndis_set *set;
848 struct rndis_set_c *set_c;
849 } u;
850 int ret, buflen;
851
852 buflen = len + sizeof(*u.set);
853 if (buflen < CONTROL_BUFFER_SIZE)
854 buflen = CONTROL_BUFFER_SIZE;
855
856 if (buflen > COMMAND_BUFFER_SIZE) {
857 u.buf = kmalloc(buflen, GFP_KERNEL);
858 if (!u.buf)
859 return -ENOMEM;
860 } else {
861 u.buf = priv->command_buffer;
862 }
863
864 mutex_lock(&priv->command_lock);
865
866 memset(u.set, 0, sizeof *u.set);
867 u.set->msg_type = RNDIS_MSG_SET;
868 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
869 u.set->oid = oid;
870 u.set->len = cpu_to_le32(len);
871 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
872 u.set->handle = cpu_to_le32(0);
873 memcpy(u.buf + sizeof(*u.set), data, len);
874
875 priv->current_command_oid = oid;
876 ret = rndis_command(dev, u.header, buflen);
877 priv->current_command_oid = 0;
878 if (ret < 0)
879 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
880 __func__, oid_to_string(oid), ret,
881 le32_to_cpu(u.set_c->status));
882
883 if (ret == 0) {
884 ret = rndis_error_status(u.set_c->status);
885
886 if (ret < 0)
887 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
888 __func__, oid_to_string(oid),
889 le32_to_cpu(u.set_c->status), ret);
890 }
891
892 mutex_unlock(&priv->command_lock);
893
894 if (u.buf != priv->command_buffer)
895 kfree(u.buf);
896 return ret;
897 }
898
899 static int rndis_reset(struct usbnet *usbdev)
900 {
901 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
902 struct rndis_reset *reset;
903 int ret;
904
905 mutex_lock(&priv->command_lock);
906
907 reset = (void *)priv->command_buffer;
908 memset(reset, 0, sizeof(*reset));
909 reset->msg_type = RNDIS_MSG_RESET;
910 reset->msg_len = cpu_to_le32(sizeof(*reset));
911 priv->current_command_oid = 0;
912 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
913
914 mutex_unlock(&priv->command_lock);
915
916 if (ret < 0)
917 return ret;
918 return 0;
919 }
920
921 /*
922 * Specs say that we can only set config parameters only soon after device
923 * initialization.
924 * value_type: 0 = u32, 2 = unicode string
925 */
926 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
927 int value_type, void *value)
928 {
929 struct ndis_config_param *infobuf;
930 int value_len, info_len, param_len, ret, i;
931 __le16 *unibuf;
932 __le32 *dst_value;
933
934 if (value_type == 0)
935 value_len = sizeof(__le32);
936 else if (value_type == 2)
937 value_len = strlen(value) * sizeof(__le16);
938 else
939 return -EINVAL;
940
941 param_len = strlen(param) * sizeof(__le16);
942 info_len = sizeof(*infobuf) + param_len + value_len;
943
944 #ifdef DEBUG
945 info_len += 12;
946 #endif
947 infobuf = kmalloc(info_len, GFP_KERNEL);
948 if (!infobuf)
949 return -ENOMEM;
950
951 #ifdef DEBUG
952 info_len -= 12;
953 /* extra 12 bytes are for padding (debug output) */
954 memset(infobuf, 0xCC, info_len + 12);
955 #endif
956
957 if (value_type == 2)
958 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
959 param, (u8 *)value);
960 else
961 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
962 param, *(u32 *)value);
963
964 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
965 infobuf->name_length = cpu_to_le32(param_len);
966 infobuf->type = cpu_to_le32(value_type);
967 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
968 infobuf->value_length = cpu_to_le32(value_len);
969
970 /* simple string to unicode string conversion */
971 unibuf = (void *)infobuf + sizeof(*infobuf);
972 for (i = 0; i < param_len / sizeof(__le16); i++)
973 unibuf[i] = cpu_to_le16(param[i]);
974
975 if (value_type == 2) {
976 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
977 for (i = 0; i < value_len / sizeof(__le16); i++)
978 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
979 } else {
980 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
981 *dst_value = cpu_to_le32(*(u32 *)value);
982 }
983
984 #ifdef DEBUG
985 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
986 for (i = 0; i < info_len; i += 12) {
987 u32 *tmp = (u32 *)((u8 *)infobuf + i);
988 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
989 cpu_to_be32(tmp[0]),
990 cpu_to_be32(tmp[1]),
991 cpu_to_be32(tmp[2]));
992 }
993 #endif
994
995 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
996 infobuf, info_len);
997 if (ret != 0)
998 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
999 ret);
1000
1001 kfree(infobuf);
1002 return ret;
1003 }
1004
1005 static int rndis_set_config_parameter_str(struct usbnet *dev,
1006 char *param, char *value)
1007 {
1008 return rndis_set_config_parameter(dev, param, 2, value);
1009 }
1010
1011 /*
1012 * data conversion functions
1013 */
1014 static int level_to_qual(int level)
1015 {
1016 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
1017 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
1018 }
1019
1020 /*
1021 * common functions
1022 */
1023 static int set_infra_mode(struct usbnet *usbdev, int mode);
1024 static void restore_keys(struct usbnet *usbdev);
1025 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1026 bool *matched);
1027
1028 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1029 {
1030 __le32 tmp;
1031
1032 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1033 tmp = cpu_to_le32(1);
1034 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1035 sizeof(tmp));
1036 }
1037
1038 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
1039 {
1040 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1041 int ret;
1042
1043 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
1044 if (ret < 0) {
1045 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1046 return ret;
1047 }
1048 if (ret == 0) {
1049 priv->radio_on = true;
1050 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1051 }
1052
1053 return ret;
1054 }
1055
1056 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1057 {
1058 int ret;
1059
1060 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1061 if (ret < 0) {
1062 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1063 bssid, ret);
1064 return ret;
1065 }
1066
1067 return ret;
1068 }
1069
1070 static int clear_bssid(struct usbnet *usbdev)
1071 {
1072 static const u8 broadcast_mac[ETH_ALEN] = {
1073 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1074 };
1075
1076 return set_bssid(usbdev, broadcast_mac);
1077 }
1078
1079 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1080 {
1081 int ret, len;
1082
1083 len = ETH_ALEN;
1084 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1085
1086 if (ret != 0)
1087 memset(bssid, 0, ETH_ALEN);
1088
1089 return ret;
1090 }
1091
1092 static int get_association_info(struct usbnet *usbdev,
1093 struct ndis_80211_assoc_info *info, int len)
1094 {
1095 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1096 info, &len);
1097 }
1098
1099 static bool is_associated(struct usbnet *usbdev)
1100 {
1101 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1102 u8 bssid[ETH_ALEN];
1103 int ret;
1104
1105 if (!priv->radio_on)
1106 return false;
1107
1108 ret = get_bssid(usbdev, bssid);
1109
1110 return (ret == 0 && !is_zero_ether_addr(bssid));
1111 }
1112
1113 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1114 {
1115 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1116 struct ndis_80211_ssid ssid;
1117 int i, ret = 0;
1118
1119 if (priv->radio_on) {
1120 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1121 if (ret == 0) {
1122 priv->radio_on = false;
1123 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1124 __func__);
1125
1126 if (reset_ssid)
1127 msleep(100);
1128 }
1129 }
1130
1131 /* disassociate causes radio to be turned off; if reset_ssid
1132 * is given, set random ssid to enable radio */
1133 if (reset_ssid) {
1134 /* Set device to infrastructure mode so we don't get ad-hoc
1135 * 'media connect' indications with the random ssid.
1136 */
1137 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1138
1139 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1140 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1141 ssid.essid[0] = 0x1;
1142 ssid.essid[1] = 0xff;
1143 for (i = 2; i < sizeof(ssid.essid); i++)
1144 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1145 ret = set_essid(usbdev, &ssid);
1146 }
1147 return ret;
1148 }
1149
1150 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1151 enum nl80211_auth_type auth_type, int keymgmt)
1152 {
1153 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1154 __le32 tmp;
1155 int auth_mode, ret;
1156
1157 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1158 __func__, wpa_version, auth_type, keymgmt);
1159
1160 if (wpa_version & NL80211_WPA_VERSION_2) {
1161 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1162 auth_mode = NDIS_80211_AUTH_WPA2;
1163 else
1164 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1165 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1166 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1167 auth_mode = NDIS_80211_AUTH_WPA;
1168 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1169 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1170 else
1171 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1172 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1173 auth_mode = NDIS_80211_AUTH_SHARED;
1174 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1175 auth_mode = NDIS_80211_AUTH_OPEN;
1176 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1177 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1178 else
1179 return -ENOTSUPP;
1180
1181 tmp = cpu_to_le32(auth_mode);
1182 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1183 sizeof(tmp));
1184 if (ret != 0) {
1185 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1186 ret);
1187 return ret;
1188 }
1189
1190 priv->wpa_version = wpa_version;
1191
1192 return 0;
1193 }
1194
1195 static int set_priv_filter(struct usbnet *usbdev)
1196 {
1197 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1198 __le32 tmp;
1199
1200 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1201 __func__, priv->wpa_version);
1202
1203 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1204 priv->wpa_version & NL80211_WPA_VERSION_1)
1205 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1206 else
1207 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1208
1209 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1210 sizeof(tmp));
1211 }
1212
1213 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1214 {
1215 __le32 tmp;
1216 int encr_mode, ret;
1217
1218 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1219 __func__, pairwise, groupwise);
1220
1221 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1222 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1223 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1224 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1225 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1226 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1227 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1228 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1229 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1230 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1231 else
1232 encr_mode = NDIS_80211_ENCR_DISABLED;
1233
1234 tmp = cpu_to_le32(encr_mode);
1235 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1236 sizeof(tmp));
1237 if (ret != 0) {
1238 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1239 ret);
1240 return ret;
1241 }
1242
1243 return 0;
1244 }
1245
1246 static int set_infra_mode(struct usbnet *usbdev, int mode)
1247 {
1248 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1249 __le32 tmp;
1250 int ret;
1251
1252 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1253 __func__, priv->infra_mode);
1254
1255 tmp = cpu_to_le32(mode);
1256 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1257 sizeof(tmp));
1258 if (ret != 0) {
1259 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1260 ret);
1261 return ret;
1262 }
1263
1264 /* NDIS drivers clear keys when infrastructure mode is
1265 * changed. But Linux tools assume otherwise. So set the
1266 * keys */
1267 restore_keys(usbdev);
1268
1269 priv->infra_mode = mode;
1270 return 0;
1271 }
1272
1273 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1274 {
1275 __le32 tmp;
1276
1277 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1278
1279 if (rts_threshold < 0 || rts_threshold > 2347)
1280 rts_threshold = 2347;
1281
1282 tmp = cpu_to_le32(rts_threshold);
1283 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1284 sizeof(tmp));
1285 }
1286
1287 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1288 {
1289 __le32 tmp;
1290
1291 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1292
1293 if (frag_threshold < 256 || frag_threshold > 2346)
1294 frag_threshold = 2346;
1295
1296 tmp = cpu_to_le32(frag_threshold);
1297 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1298 sizeof(tmp));
1299 }
1300
1301 static void set_default_iw_params(struct usbnet *usbdev)
1302 {
1303 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1304 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1305 RNDIS_WLAN_KEY_MGMT_NONE);
1306 set_priv_filter(usbdev);
1307 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1308 }
1309
1310 static int deauthenticate(struct usbnet *usbdev)
1311 {
1312 int ret;
1313
1314 ret = disassociate(usbdev, true);
1315 set_default_iw_params(usbdev);
1316 return ret;
1317 }
1318
1319 static int set_channel(struct usbnet *usbdev, int channel)
1320 {
1321 struct ndis_80211_conf config;
1322 unsigned int dsconfig;
1323 int len, ret;
1324
1325 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1326
1327 /* this OID is valid only when not associated */
1328 if (is_associated(usbdev))
1329 return 0;
1330
1331 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1332
1333 len = sizeof(config);
1334 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1335 if (ret < 0) {
1336 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1337 __func__);
1338 return ret;
1339 }
1340
1341 config.ds_config = cpu_to_le32(dsconfig);
1342 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1343 sizeof(config));
1344
1345 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1346
1347 return ret;
1348 }
1349
1350 /* index must be 0 - N, as per NDIS */
1351 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1352 int index)
1353 {
1354 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1355 struct ndis_80211_wep_key ndis_key;
1356 u32 cipher;
1357 int ret;
1358
1359 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1360 __func__, index, key_len);
1361
1362 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1363 return -EINVAL;
1364
1365 if (key_len == 5)
1366 cipher = WLAN_CIPHER_SUITE_WEP40;
1367 else
1368 cipher = WLAN_CIPHER_SUITE_WEP104;
1369
1370 memset(&ndis_key, 0, sizeof(ndis_key));
1371
1372 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1373 ndis_key.length = cpu_to_le32(key_len);
1374 ndis_key.index = cpu_to_le32(index);
1375 memcpy(&ndis_key.material, key, key_len);
1376
1377 if (index == priv->encr_tx_key_index) {
1378 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1379 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1380 RNDIS_WLAN_ALG_NONE);
1381 if (ret)
1382 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1383 ret);
1384 }
1385
1386 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1387 sizeof(ndis_key));
1388 if (ret != 0) {
1389 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1390 index + 1, ret);
1391 return ret;
1392 }
1393
1394 priv->encr_keys[index].len = key_len;
1395 priv->encr_keys[index].cipher = cipher;
1396 memcpy(&priv->encr_keys[index].material, key, key_len);
1397 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1398
1399 return 0;
1400 }
1401
1402 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1403 int index, const u8 *addr, const u8 *rx_seq,
1404 int seq_len, u32 cipher, __le32 flags)
1405 {
1406 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1407 struct ndis_80211_key ndis_key;
1408 bool is_addr_ok;
1409 int ret;
1410
1411 if (index < 0 || index >= 4) {
1412 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1413 __func__, index);
1414 return -EINVAL;
1415 }
1416 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1417 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1418 __func__, key_len);
1419 return -EINVAL;
1420 }
1421 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1422 if (!rx_seq || seq_len <= 0) {
1423 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1424 __func__);
1425 return -EINVAL;
1426 }
1427 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1428 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1429 return -EINVAL;
1430 }
1431 }
1432
1433 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1434 !is_broadcast_ether_addr(addr);
1435 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1436 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1437 __func__, addr);
1438 return -EINVAL;
1439 }
1440
1441 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1442 __func__, index,
1443 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1444 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1445 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1446
1447 memset(&ndis_key, 0, sizeof(ndis_key));
1448
1449 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1450 sizeof(ndis_key.material) + key_len);
1451 ndis_key.length = cpu_to_le32(key_len);
1452 ndis_key.index = cpu_to_le32(index) | flags;
1453
1454 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1455 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1456 * different order than NDIS spec, so swap the order here. */
1457 memcpy(ndis_key.material, key, 16);
1458 memcpy(ndis_key.material + 16, key + 24, 8);
1459 memcpy(ndis_key.material + 24, key + 16, 8);
1460 } else
1461 memcpy(ndis_key.material, key, key_len);
1462
1463 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1464 memcpy(ndis_key.rsc, rx_seq, seq_len);
1465
1466 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1467 /* pairwise key */
1468 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1469 } else {
1470 /* group key */
1471 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1472 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1473 else
1474 get_bssid(usbdev, ndis_key.bssid);
1475 }
1476
1477 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1478 le32_to_cpu(ndis_key.size));
1479 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1480 __func__, ret);
1481 if (ret != 0)
1482 return ret;
1483
1484 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1485 priv->encr_keys[index].len = key_len;
1486 priv->encr_keys[index].cipher = cipher;
1487 memcpy(&priv->encr_keys[index].material, key, key_len);
1488 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1489 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1490 else
1491 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1492
1493 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1494 priv->encr_tx_key_index = index;
1495
1496 return 0;
1497 }
1498
1499 static int restore_key(struct usbnet *usbdev, int key_idx)
1500 {
1501 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1502 struct rndis_wlan_encr_key key;
1503
1504 if (is_wpa_key(priv, key_idx))
1505 return 0;
1506
1507 key = priv->encr_keys[key_idx];
1508
1509 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1510
1511 if (key.len == 0)
1512 return 0;
1513
1514 return add_wep_key(usbdev, key.material, key.len, key_idx);
1515 }
1516
1517 static void restore_keys(struct usbnet *usbdev)
1518 {
1519 int i;
1520
1521 for (i = 0; i < 4; i++)
1522 restore_key(usbdev, i);
1523 }
1524
1525 static void clear_key(struct rndis_wlan_private *priv, int idx)
1526 {
1527 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1528 }
1529
1530 /* remove_key is for both wep and wpa */
1531 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1532 {
1533 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1534 struct ndis_80211_remove_key remove_key;
1535 __le32 keyindex;
1536 bool is_wpa;
1537 int ret;
1538
1539 if (index >= RNDIS_WLAN_NUM_KEYS)
1540 return -ENOENT;
1541
1542 if (priv->encr_keys[index].len == 0)
1543 return 0;
1544
1545 is_wpa = is_wpa_key(priv, index);
1546
1547 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1548 __func__, index, is_wpa ? "wpa" : "wep",
1549 priv->encr_keys[index].len);
1550
1551 clear_key(priv, index);
1552
1553 if (is_wpa) {
1554 remove_key.size = cpu_to_le32(sizeof(remove_key));
1555 remove_key.index = cpu_to_le32(index);
1556 if (bssid) {
1557 /* pairwise key */
1558 if (!is_broadcast_ether_addr(bssid))
1559 remove_key.index |=
1560 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1561 memcpy(remove_key.bssid, bssid,
1562 sizeof(remove_key.bssid));
1563 } else
1564 memset(remove_key.bssid, 0xff,
1565 sizeof(remove_key.bssid));
1566
1567 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1568 sizeof(remove_key));
1569 if (ret != 0)
1570 return ret;
1571 } else {
1572 keyindex = cpu_to_le32(index);
1573 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1574 sizeof(keyindex));
1575 if (ret != 0) {
1576 netdev_warn(usbdev->net,
1577 "removing encryption key %d failed (%08X)\n",
1578 index, ret);
1579 return ret;
1580 }
1581 }
1582
1583 /* if it is transmit key, disable encryption */
1584 if (index == priv->encr_tx_key_index)
1585 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1586
1587 return 0;
1588 }
1589
1590 static void set_multicast_list(struct usbnet *usbdev)
1591 {
1592 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1593 struct netdev_hw_addr *ha;
1594 __le32 filter, basefilter;
1595 int ret;
1596 char *mc_addrs = NULL;
1597 int mc_count;
1598
1599 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1600 RNDIS_PACKET_TYPE_BROADCAST;
1601
1602 if (usbdev->net->flags & IFF_PROMISC) {
1603 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1604 RNDIS_PACKET_TYPE_ALL_LOCAL;
1605 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1606 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1607 }
1608
1609 if (filter != basefilter)
1610 goto set_filter;
1611
1612 /*
1613 * mc_list should be accessed holding the lock, so copy addresses to
1614 * local buffer first.
1615 */
1616 netif_addr_lock_bh(usbdev->net);
1617 mc_count = netdev_mc_count(usbdev->net);
1618 if (mc_count > priv->multicast_size) {
1619 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1620 } else if (mc_count) {
1621 int i = 0;
1622
1623 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1624 if (!mc_addrs) {
1625 netdev_warn(usbdev->net,
1626 "couldn't alloc %d bytes of memory\n",
1627 mc_count * ETH_ALEN);
1628 netif_addr_unlock_bh(usbdev->net);
1629 return;
1630 }
1631
1632 netdev_for_each_mc_addr(ha, usbdev->net)
1633 memcpy(mc_addrs + i++ * ETH_ALEN,
1634 ha->addr, ETH_ALEN);
1635 }
1636 netif_addr_unlock_bh(usbdev->net);
1637
1638 if (filter != basefilter)
1639 goto set_filter;
1640
1641 if (mc_count) {
1642 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1643 mc_count * ETH_ALEN);
1644 kfree(mc_addrs);
1645 if (ret == 0)
1646 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1647 else
1648 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1649
1650 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1651 mc_count, priv->multicast_size, ret);
1652 }
1653
1654 set_filter:
1655 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1656 sizeof(filter));
1657 if (ret < 0) {
1658 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1659 le32_to_cpu(filter));
1660 }
1661
1662 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1663 le32_to_cpu(filter), ret);
1664 }
1665
1666 #ifdef DEBUG
1667 static void debug_print_pmkids(struct usbnet *usbdev,
1668 struct ndis_80211_pmkid *pmkids,
1669 const char *func_str)
1670 {
1671 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1672 int i, len, count, max_pmkids, entry_len;
1673
1674 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1675 len = le32_to_cpu(pmkids->length);
1676 count = le32_to_cpu(pmkids->bssid_info_count);
1677
1678 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1679
1680 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1681 "%d)\n", func_str, count, len, entry_len);
1682
1683 if (count > max_pmkids)
1684 count = max_pmkids;
1685
1686 for (i = 0; i < count; i++) {
1687 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1688
1689 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1690 "pmkid: %08X:%08X:%08X:%08X\n",
1691 func_str, pmkids->bssid_info[i].bssid,
1692 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1693 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1694 }
1695 }
1696 #else
1697 static void debug_print_pmkids(struct usbnet *usbdev,
1698 struct ndis_80211_pmkid *pmkids,
1699 const char *func_str)
1700 {
1701 return;
1702 }
1703 #endif
1704
1705 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1706 {
1707 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1708 struct ndis_80211_pmkid *pmkids;
1709 int len, ret, max_pmkids;
1710
1711 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1712 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1713
1714 pmkids = kzalloc(len, GFP_KERNEL);
1715 if (!pmkids)
1716 return ERR_PTR(-ENOMEM);
1717
1718 pmkids->length = cpu_to_le32(len);
1719 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1720
1721 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1722 if (ret < 0) {
1723 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1724 " -> %d\n", __func__, len, max_pmkids, ret);
1725
1726 kfree(pmkids);
1727 return ERR_PTR(ret);
1728 }
1729
1730 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1731 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1732
1733 debug_print_pmkids(usbdev, pmkids, __func__);
1734
1735 return pmkids;
1736 }
1737
1738 static int set_device_pmkids(struct usbnet *usbdev,
1739 struct ndis_80211_pmkid *pmkids)
1740 {
1741 int ret, len, num_pmkids;
1742
1743 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1744 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1745 pmkids->length = cpu_to_le32(len);
1746
1747 debug_print_pmkids(usbdev, pmkids, __func__);
1748
1749 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1750 le32_to_cpu(pmkids->length));
1751 if (ret < 0) {
1752 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1753 "\n", __func__, len, num_pmkids, ret);
1754 }
1755
1756 kfree(pmkids);
1757 return ret;
1758 }
1759
1760 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1761 struct ndis_80211_pmkid *pmkids,
1762 struct cfg80211_pmksa *pmksa,
1763 int max_pmkids)
1764 {
1765 int i, len, count, newlen, err;
1766
1767 len = le32_to_cpu(pmkids->length);
1768 count = le32_to_cpu(pmkids->bssid_info_count);
1769
1770 if (count > max_pmkids)
1771 count = max_pmkids;
1772
1773 for (i = 0; i < count; i++)
1774 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1775 pmksa->bssid))
1776 break;
1777
1778 /* pmkid not found */
1779 if (i == count) {
1780 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1781 __func__, pmksa->bssid);
1782 err = -ENOENT;
1783 goto error;
1784 }
1785
1786 for (; i + 1 < count; i++)
1787 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1788
1789 count--;
1790 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1791
1792 pmkids->length = cpu_to_le32(newlen);
1793 pmkids->bssid_info_count = cpu_to_le32(count);
1794
1795 return pmkids;
1796 error:
1797 kfree(pmkids);
1798 return ERR_PTR(err);
1799 }
1800
1801 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1802 struct ndis_80211_pmkid *pmkids,
1803 struct cfg80211_pmksa *pmksa,
1804 int max_pmkids)
1805 {
1806 int i, err, len, count, newlen;
1807
1808 len = le32_to_cpu(pmkids->length);
1809 count = le32_to_cpu(pmkids->bssid_info_count);
1810
1811 if (count > max_pmkids)
1812 count = max_pmkids;
1813
1814 /* update with new pmkid */
1815 for (i = 0; i < count; i++) {
1816 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1817 pmksa->bssid))
1818 continue;
1819
1820 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1821 WLAN_PMKID_LEN);
1822
1823 return pmkids;
1824 }
1825
1826 /* out of space, return error */
1827 if (i == max_pmkids) {
1828 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1829 err = -ENOSPC;
1830 goto error;
1831 }
1832
1833 /* add new pmkid */
1834 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1835
1836 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1837 if (!pmkids) {
1838 err = -ENOMEM;
1839 goto error;
1840 }
1841
1842 pmkids->length = cpu_to_le32(newlen);
1843 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1844
1845 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1846 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1847
1848 return pmkids;
1849 error:
1850 kfree(pmkids);
1851 return ERR_PTR(err);
1852 }
1853
1854 /*
1855 * cfg80211 ops
1856 */
1857 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1858 struct net_device *dev,
1859 enum nl80211_iftype type, u32 *flags,
1860 struct vif_params *params)
1861 {
1862 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1863 struct usbnet *usbdev = priv->usbdev;
1864 int mode;
1865
1866 switch (type) {
1867 case NL80211_IFTYPE_ADHOC:
1868 mode = NDIS_80211_INFRA_ADHOC;
1869 break;
1870 case NL80211_IFTYPE_STATION:
1871 mode = NDIS_80211_INFRA_INFRA;
1872 break;
1873 default:
1874 return -EINVAL;
1875 }
1876
1877 priv->wdev.iftype = type;
1878
1879 return set_infra_mode(usbdev, mode);
1880 }
1881
1882 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1883 {
1884 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1885 struct usbnet *usbdev = priv->usbdev;
1886 int err;
1887
1888 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1889 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1890 if (err < 0)
1891 return err;
1892 }
1893
1894 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1895 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1896 if (err < 0)
1897 return err;
1898 }
1899
1900 return 0;
1901 }
1902
1903 static int rndis_set_tx_power(struct wiphy *wiphy,
1904 enum nl80211_tx_power_setting type,
1905 int mbm)
1906 {
1907 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1908 struct usbnet *usbdev = priv->usbdev;
1909
1910 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1911 __func__, type, mbm);
1912
1913 if (mbm < 0 || (mbm % 100))
1914 return -ENOTSUPP;
1915
1916 /* Device doesn't support changing txpower after initialization, only
1917 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1918 * currently used.
1919 */
1920 if (type == NL80211_TX_POWER_AUTOMATIC ||
1921 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1922 if (!priv->radio_on)
1923 disassociate(usbdev, true); /* turn on radio */
1924
1925 return 0;
1926 }
1927
1928 return -ENOTSUPP;
1929 }
1930
1931 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1932 {
1933 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1934 struct usbnet *usbdev = priv->usbdev;
1935
1936 *dbm = get_bcm4320_power_dbm(priv);
1937
1938 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1939
1940 return 0;
1941 }
1942
1943 #define SCAN_DELAY_JIFFIES (6 * HZ)
1944 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1945 struct cfg80211_scan_request *request)
1946 {
1947 struct usbnet *usbdev = netdev_priv(dev);
1948 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1949 int ret;
1950 int delay = SCAN_DELAY_JIFFIES;
1951
1952 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1953
1954 /* Get current bssid list from device before new scan, as new scan
1955 * clears internal bssid list.
1956 */
1957 rndis_check_bssid_list(usbdev, NULL, NULL);
1958
1959 if (!request)
1960 return -EINVAL;
1961
1962 if (priv->scan_request && priv->scan_request != request)
1963 return -EBUSY;
1964
1965 priv->scan_request = request;
1966
1967 ret = rndis_start_bssid_list_scan(usbdev);
1968 if (ret == 0) {
1969 if (priv->device_type == RNDIS_BCM4320A)
1970 delay = HZ;
1971
1972 /* Wait before retrieving scan results from device */
1973 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1974 }
1975
1976 return ret;
1977 }
1978
1979 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1980 struct ndis_80211_bssid_ex *bssid)
1981 {
1982 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1983 struct ieee80211_channel *channel;
1984 s32 signal;
1985 u64 timestamp;
1986 u16 capability;
1987 u16 beacon_interval;
1988 struct ndis_80211_fixed_ies *fixed;
1989 int ie_len, bssid_len;
1990 u8 *ie;
1991
1992 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1993 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1994
1995 /* parse bssid structure */
1996 bssid_len = le32_to_cpu(bssid->length);
1997
1998 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1999 sizeof(struct ndis_80211_fixed_ies))
2000 return NULL;
2001
2002 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2003
2004 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2005 ie_len = min(bssid_len - (int)sizeof(*bssid),
2006 (int)le32_to_cpu(bssid->ie_length));
2007 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2008 if (ie_len < 0)
2009 return NULL;
2010
2011 /* extract data for cfg80211_inform_bss */
2012 channel = ieee80211_get_channel(priv->wdev.wiphy,
2013 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2014 if (!channel)
2015 return NULL;
2016
2017 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2018 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2019 capability = le16_to_cpu(fixed->capabilities);
2020 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2021
2022 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2023 timestamp, capability, beacon_interval, ie, ie_len, signal,
2024 GFP_KERNEL);
2025 }
2026
2027 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2028 struct ndis_80211_bssid_ex *bssid,
2029 int *bssid_len, void *buf, int len)
2030 {
2031 void *buf_end, *bssid_end;
2032
2033 buf_end = (char *)buf + len;
2034 bssid_end = (char *)bssid + *bssid_len;
2035
2036 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2037 *bssid_len = 0;
2038 return NULL;
2039 } else {
2040 bssid = (void *)((char *)bssid + *bssid_len);
2041 *bssid_len = le32_to_cpu(bssid->length);
2042 return bssid;
2043 }
2044 }
2045
2046 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2047 int bssid_len, void *buf, int len)
2048 {
2049 void *buf_end, *bssid_end;
2050
2051 if (!bssid || bssid_len <= 0 || bssid_len > len)
2052 return false;
2053
2054 buf_end = (char *)buf + len;
2055 bssid_end = (char *)bssid + bssid_len;
2056
2057 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2058 }
2059
2060 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2061 bool *matched)
2062 {
2063 void *buf = NULL;
2064 struct ndis_80211_bssid_list_ex *bssid_list;
2065 struct ndis_80211_bssid_ex *bssid;
2066 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2067
2068 netdev_dbg(usbdev->net, "%s()\n", __func__);
2069
2070 len = CONTROL_BUFFER_SIZE;
2071 resize_buf:
2072 buf = kzalloc(len, GFP_KERNEL);
2073 if (!buf) {
2074 ret = -ENOMEM;
2075 goto out;
2076 }
2077
2078 /* BSSID-list might have got bigger last time we checked, keep
2079 * resizing until it won't get any bigger.
2080 */
2081 new_len = len;
2082 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &new_len);
2083 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2084 goto out;
2085
2086 if (new_len > len) {
2087 len = new_len;
2088 kfree(buf);
2089 goto resize_buf;
2090 }
2091
2092 len = new_len;
2093
2094 bssid_list = buf;
2095 count = le32_to_cpu(bssid_list->num_items);
2096 real_count = 0;
2097 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2098
2099 bssid_len = 0;
2100 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2101
2102 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2103 * received 'num_items' and walking through full bssid buffer instead.
2104 */
2105 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2106 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2107 matched) {
2108 if (compare_ether_addr(bssid->mac, match_bssid))
2109 *matched = true;
2110 }
2111
2112 real_count++;
2113 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2114 }
2115
2116 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2117 " %d\n", __func__, count, real_count);
2118
2119 out:
2120 kfree(buf);
2121 return ret;
2122 }
2123
2124 static void rndis_get_scan_results(struct work_struct *work)
2125 {
2126 struct rndis_wlan_private *priv =
2127 container_of(work, struct rndis_wlan_private, scan_work.work);
2128 struct usbnet *usbdev = priv->usbdev;
2129 int ret;
2130
2131 netdev_dbg(usbdev->net, "get_scan_results\n");
2132
2133 if (!priv->scan_request)
2134 return;
2135
2136 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2137
2138 cfg80211_scan_done(priv->scan_request, ret < 0);
2139
2140 priv->scan_request = NULL;
2141 }
2142
2143 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2144 struct cfg80211_connect_params *sme)
2145 {
2146 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2147 struct usbnet *usbdev = priv->usbdev;
2148 struct ieee80211_channel *channel = sme->channel;
2149 struct ndis_80211_ssid ssid;
2150 int pairwise = RNDIS_WLAN_ALG_NONE;
2151 int groupwise = RNDIS_WLAN_ALG_NONE;
2152 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2153 int length, i, ret, chan = -1;
2154
2155 if (channel)
2156 chan = ieee80211_frequency_to_channel(channel->center_freq);
2157
2158 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2159 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2160 pairwise |=
2161 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2162
2163 if (sme->crypto.n_ciphers_pairwise > 0 &&
2164 pairwise == RNDIS_WLAN_ALG_NONE) {
2165 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2166 return -ENOTSUPP;
2167 }
2168
2169 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2170 keymgmt |=
2171 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2172
2173 if (sme->crypto.n_akm_suites > 0 &&
2174 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2175 netdev_err(usbdev->net, "Invalid keymgmt\n");
2176 return -ENOTSUPP;
2177 }
2178
2179 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2180 sme->ssid, sme->bssid, chan,
2181 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2182 groupwise, pairwise, keymgmt);
2183
2184 if (is_associated(usbdev))
2185 disassociate(usbdev, false);
2186
2187 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2188 if (ret < 0) {
2189 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2190 ret);
2191 goto err_turn_radio_on;
2192 }
2193
2194 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2195 keymgmt);
2196 if (ret < 0) {
2197 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2198 ret);
2199 goto err_turn_radio_on;
2200 }
2201
2202 set_priv_filter(usbdev);
2203
2204 ret = set_encr_mode(usbdev, pairwise, groupwise);
2205 if (ret < 0) {
2206 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2207 ret);
2208 goto err_turn_radio_on;
2209 }
2210
2211 if (channel) {
2212 ret = set_channel(usbdev, chan);
2213 if (ret < 0) {
2214 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2215 ret);
2216 goto err_turn_radio_on;
2217 }
2218 }
2219
2220 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2221 priv->encr_tx_key_index = sme->key_idx;
2222 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2223 if (ret < 0) {
2224 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2225 ret, sme->key_len, sme->key_idx);
2226 goto err_turn_radio_on;
2227 }
2228 }
2229
2230 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2231 !is_broadcast_ether_addr(sme->bssid)) {
2232 ret = set_bssid(usbdev, sme->bssid);
2233 if (ret < 0) {
2234 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2235 ret);
2236 goto err_turn_radio_on;
2237 }
2238 } else
2239 clear_bssid(usbdev);
2240
2241 length = sme->ssid_len;
2242 if (length > NDIS_802_11_LENGTH_SSID)
2243 length = NDIS_802_11_LENGTH_SSID;
2244
2245 memset(&ssid, 0, sizeof(ssid));
2246 ssid.length = cpu_to_le32(length);
2247 memcpy(ssid.essid, sme->ssid, length);
2248
2249 /* Pause and purge rx queue, so we don't pass packets before
2250 * 'media connect'-indication.
2251 */
2252 usbnet_pause_rx(usbdev);
2253 usbnet_purge_paused_rxq(usbdev);
2254
2255 ret = set_essid(usbdev, &ssid);
2256 if (ret < 0)
2257 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2258 return ret;
2259
2260 err_turn_radio_on:
2261 disassociate(usbdev, true);
2262
2263 return ret;
2264 }
2265
2266 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2267 u16 reason_code)
2268 {
2269 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2270 struct usbnet *usbdev = priv->usbdev;
2271
2272 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2273
2274 priv->connected = false;
2275 memset(priv->bssid, 0, ETH_ALEN);
2276
2277 return deauthenticate(usbdev);
2278 }
2279
2280 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2281 struct cfg80211_ibss_params *params)
2282 {
2283 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2284 struct usbnet *usbdev = priv->usbdev;
2285 struct ieee80211_channel *channel = params->channel;
2286 struct ndis_80211_ssid ssid;
2287 enum nl80211_auth_type auth_type;
2288 int ret, alg, length, chan = -1;
2289
2290 if (channel)
2291 chan = ieee80211_frequency_to_channel(channel->center_freq);
2292
2293 /* TODO: How to handle ad-hoc encryption?
2294 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2295 * pre-shared for encryption (open/shared/wpa), is key set before
2296 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2297 */
2298 if (params->privacy) {
2299 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2300 alg = RNDIS_WLAN_ALG_WEP;
2301 } else {
2302 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2303 alg = RNDIS_WLAN_ALG_NONE;
2304 }
2305
2306 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2307 params->ssid, params->bssid, chan, params->privacy);
2308
2309 if (is_associated(usbdev))
2310 disassociate(usbdev, false);
2311
2312 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2313 if (ret < 0) {
2314 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2315 ret);
2316 goto err_turn_radio_on;
2317 }
2318
2319 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2320 if (ret < 0) {
2321 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2322 ret);
2323 goto err_turn_radio_on;
2324 }
2325
2326 set_priv_filter(usbdev);
2327
2328 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2329 if (ret < 0) {
2330 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2331 ret);
2332 goto err_turn_radio_on;
2333 }
2334
2335 if (channel) {
2336 ret = set_channel(usbdev, chan);
2337 if (ret < 0) {
2338 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2339 ret);
2340 goto err_turn_radio_on;
2341 }
2342 }
2343
2344 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2345 !is_broadcast_ether_addr(params->bssid)) {
2346 ret = set_bssid(usbdev, params->bssid);
2347 if (ret < 0) {
2348 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2349 ret);
2350 goto err_turn_radio_on;
2351 }
2352 } else
2353 clear_bssid(usbdev);
2354
2355 length = params->ssid_len;
2356 if (length > NDIS_802_11_LENGTH_SSID)
2357 length = NDIS_802_11_LENGTH_SSID;
2358
2359 memset(&ssid, 0, sizeof(ssid));
2360 ssid.length = cpu_to_le32(length);
2361 memcpy(ssid.essid, params->ssid, length);
2362
2363 /* Don't need to pause rx queue for ad-hoc. */
2364 usbnet_purge_paused_rxq(usbdev);
2365 usbnet_resume_rx(usbdev);
2366
2367 ret = set_essid(usbdev, &ssid);
2368 if (ret < 0)
2369 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2370 ret);
2371 return ret;
2372
2373 err_turn_radio_on:
2374 disassociate(usbdev, true);
2375
2376 return ret;
2377 }
2378
2379 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2380 {
2381 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2382 struct usbnet *usbdev = priv->usbdev;
2383
2384 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2385
2386 priv->connected = false;
2387 memset(priv->bssid, 0, ETH_ALEN);
2388
2389 return deauthenticate(usbdev);
2390 }
2391
2392 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
2393 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2394 {
2395 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2396 struct usbnet *usbdev = priv->usbdev;
2397
2398 return set_channel(usbdev,
2399 ieee80211_frequency_to_channel(chan->center_freq));
2400 }
2401
2402 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2403 u8 key_index, bool pairwise, const u8 *mac_addr,
2404 struct key_params *params)
2405 {
2406 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2407 struct usbnet *usbdev = priv->usbdev;
2408 __le32 flags;
2409
2410 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2411 __func__, key_index, mac_addr, params->cipher);
2412
2413 switch (params->cipher) {
2414 case WLAN_CIPHER_SUITE_WEP40:
2415 case WLAN_CIPHER_SUITE_WEP104:
2416 return add_wep_key(usbdev, params->key, params->key_len,
2417 key_index);
2418 case WLAN_CIPHER_SUITE_TKIP:
2419 case WLAN_CIPHER_SUITE_CCMP:
2420 flags = 0;
2421
2422 if (params->seq && params->seq_len > 0)
2423 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2424 if (mac_addr)
2425 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2426 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2427
2428 return add_wpa_key(usbdev, params->key, params->key_len,
2429 key_index, mac_addr, params->seq,
2430 params->seq_len, params->cipher, flags);
2431 default:
2432 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2433 __func__, params->cipher);
2434 return -ENOTSUPP;
2435 }
2436 }
2437
2438 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2439 u8 key_index, bool pairwise, const u8 *mac_addr)
2440 {
2441 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2442 struct usbnet *usbdev = priv->usbdev;
2443
2444 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2445
2446 return remove_key(usbdev, key_index, mac_addr);
2447 }
2448
2449 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2450 u8 key_index, bool unicast, bool multicast)
2451 {
2452 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2453 struct usbnet *usbdev = priv->usbdev;
2454 struct rndis_wlan_encr_key key;
2455
2456 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2457
2458 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2459 return -ENOENT;
2460
2461 priv->encr_tx_key_index = key_index;
2462
2463 if (is_wpa_key(priv, key_index))
2464 return 0;
2465
2466 key = priv->encr_keys[key_index];
2467
2468 return add_wep_key(usbdev, key.material, key.len, key_index);
2469 }
2470
2471 static void rndis_fill_station_info(struct usbnet *usbdev,
2472 struct station_info *sinfo)
2473 {
2474 __le32 linkspeed, rssi;
2475 int ret, len;
2476
2477 memset(sinfo, 0, sizeof(*sinfo));
2478
2479 len = sizeof(linkspeed);
2480 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2481 if (ret == 0) {
2482 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2483 sinfo->filled |= STATION_INFO_TX_BITRATE;
2484 }
2485
2486 len = sizeof(rssi);
2487 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2488 if (ret == 0) {
2489 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2490 sinfo->filled |= STATION_INFO_SIGNAL;
2491 }
2492 }
2493
2494 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2495 u8 *mac, struct station_info *sinfo)
2496 {
2497 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2498 struct usbnet *usbdev = priv->usbdev;
2499
2500 if (compare_ether_addr(priv->bssid, mac))
2501 return -ENOENT;
2502
2503 rndis_fill_station_info(usbdev, sinfo);
2504
2505 return 0;
2506 }
2507
2508 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2509 int idx, u8 *mac, struct station_info *sinfo)
2510 {
2511 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2512 struct usbnet *usbdev = priv->usbdev;
2513
2514 if (idx != 0)
2515 return -ENOENT;
2516
2517 memcpy(mac, priv->bssid, ETH_ALEN);
2518
2519 rndis_fill_station_info(usbdev, sinfo);
2520
2521 return 0;
2522 }
2523
2524 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2525 struct cfg80211_pmksa *pmksa)
2526 {
2527 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2528 struct usbnet *usbdev = priv->usbdev;
2529 struct ndis_80211_pmkid *pmkids;
2530 u32 *tmp = (u32 *)pmksa->pmkid;
2531
2532 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2533 pmksa->bssid,
2534 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2535 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2536
2537 pmkids = get_device_pmkids(usbdev);
2538 if (IS_ERR(pmkids)) {
2539 /* couldn't read PMKID cache from device */
2540 return PTR_ERR(pmkids);
2541 }
2542
2543 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2544 if (IS_ERR(pmkids)) {
2545 /* not found, list full, etc */
2546 return PTR_ERR(pmkids);
2547 }
2548
2549 return set_device_pmkids(usbdev, pmkids);
2550 }
2551
2552 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2553 struct cfg80211_pmksa *pmksa)
2554 {
2555 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2556 struct usbnet *usbdev = priv->usbdev;
2557 struct ndis_80211_pmkid *pmkids;
2558 u32 *tmp = (u32 *)pmksa->pmkid;
2559
2560 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2561 pmksa->bssid,
2562 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2563 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2564
2565 pmkids = get_device_pmkids(usbdev);
2566 if (IS_ERR(pmkids)) {
2567 /* Couldn't read PMKID cache from device */
2568 return PTR_ERR(pmkids);
2569 }
2570
2571 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2572 if (IS_ERR(pmkids)) {
2573 /* not found, etc */
2574 return PTR_ERR(pmkids);
2575 }
2576
2577 return set_device_pmkids(usbdev, pmkids);
2578 }
2579
2580 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2581 {
2582 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2583 struct usbnet *usbdev = priv->usbdev;
2584 struct ndis_80211_pmkid pmkid;
2585
2586 netdev_dbg(usbdev->net, "%s()\n", __func__);
2587
2588 memset(&pmkid, 0, sizeof(pmkid));
2589
2590 pmkid.length = cpu_to_le32(sizeof(pmkid));
2591 pmkid.bssid_info_count = cpu_to_le32(0);
2592
2593 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2594 }
2595
2596 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2597 bool enabled, int timeout)
2598 {
2599 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2600 struct usbnet *usbdev = priv->usbdev;
2601 int power_mode;
2602 __le32 mode;
2603 int ret;
2604
2605 if (priv->device_type != RNDIS_BCM4320B)
2606 return -ENOTSUPP;
2607
2608 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2609 enabled ? "enabled" : "disabled",
2610 timeout);
2611
2612 if (enabled)
2613 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2614 else
2615 power_mode = NDIS_80211_POWER_MODE_CAM;
2616
2617 if (power_mode == priv->power_mode)
2618 return 0;
2619
2620 priv->power_mode = power_mode;
2621
2622 mode = cpu_to_le32(power_mode);
2623 ret = rndis_set_oid(usbdev, OID_802_11_POWER_MODE, &mode, sizeof(mode));
2624
2625 netdev_dbg(usbdev->net, "%s(): OID_802_11_POWER_MODE -> %d\n",
2626 __func__, ret);
2627
2628 return ret;
2629 }
2630
2631 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2632 struct net_device *dev,
2633 s32 rssi_thold, u32 rssi_hyst)
2634 {
2635 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2636
2637 priv->cqm_rssi_thold = rssi_thold;
2638 priv->cqm_rssi_hyst = rssi_hyst;
2639 priv->last_cqm_event_rssi = 0;
2640
2641 return 0;
2642 }
2643
2644 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2645 struct ndis_80211_assoc_info *info)
2646 {
2647 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2648 struct ieee80211_channel *channel;
2649 struct ndis_80211_conf config;
2650 struct ndis_80211_ssid ssid;
2651 s32 signal;
2652 u64 timestamp;
2653 u16 capability;
2654 u16 beacon_interval;
2655 __le32 rssi;
2656 u8 ie_buf[34];
2657 int len, ret, ie_len;
2658
2659 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2660 len = sizeof(rssi);
2661 rssi = 0;
2662 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2663 signal = level_to_qual(le32_to_cpu(rssi));
2664
2665 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2666 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2667 level_to_qual(le32_to_cpu(rssi)));
2668
2669 /* Get AP capabilities */
2670 if (info) {
2671 capability = le16_to_cpu(info->resp_ie.capa);
2672 } else {
2673 /* Set atleast ESS/IBSS capability */
2674 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2675 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2676 }
2677
2678 /* Get channel and beacon interval */
2679 len = sizeof(config);
2680 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2681 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2682 __func__, ret);
2683 if (ret >= 0) {
2684 beacon_interval = le16_to_cpu(config.beacon_period);
2685 channel = ieee80211_get_channel(priv->wdev.wiphy,
2686 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2687 if (!channel) {
2688 netdev_warn(usbdev->net, "%s(): could not get channel."
2689 "\n", __func__);
2690 return;
2691 }
2692 } else {
2693 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2694 __func__);
2695 return;
2696 }
2697
2698 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2699 len = sizeof(ssid);
2700 memset(&ssid, 0, sizeof(ssid));
2701 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2702 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2703 "'%.32s'\n", __func__, ret,
2704 le32_to_cpu(ssid.length), ssid.essid);
2705
2706 if (le32_to_cpu(ssid.length) > 32)
2707 ssid.length = cpu_to_le32(32);
2708
2709 ie_buf[0] = WLAN_EID_SSID;
2710 ie_buf[1] = le32_to_cpu(ssid.length);
2711 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2712
2713 ie_len = le32_to_cpu(ssid.length) + 2;
2714
2715 /* no tsf */
2716 timestamp = 0;
2717
2718 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2719 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2720 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2721 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2722 ssid.essid, signal);
2723
2724 cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2725 timestamp, capability, beacon_interval, ie_buf, ie_len,
2726 signal, GFP_KERNEL);
2727 }
2728
2729 /*
2730 * workers, indication handlers, device poller
2731 */
2732 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2733 {
2734 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2735 struct ndis_80211_assoc_info *info = NULL;
2736 u8 bssid[ETH_ALEN];
2737 int resp_ie_len, req_ie_len;
2738 u8 *req_ie, *resp_ie;
2739 int ret, offset;
2740 bool roamed = false;
2741 bool match_bss;
2742
2743 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2744 /* received media connect indication while connected, either
2745 * device reassociated with same AP or roamed to new. */
2746 roamed = true;
2747 }
2748
2749 req_ie_len = 0;
2750 resp_ie_len = 0;
2751 req_ie = NULL;
2752 resp_ie = NULL;
2753
2754 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2755 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2756 if (!info) {
2757 /* No memory? Try resume work later */
2758 set_bit(WORK_LINK_UP, &priv->work_pending);
2759 queue_work(priv->workqueue, &priv->work);
2760 return;
2761 }
2762
2763 /* Get association info IEs from device. */
2764 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2765 if (!ret) {
2766 req_ie_len = le32_to_cpu(info->req_ie_length);
2767 if (req_ie_len > 0) {
2768 offset = le32_to_cpu(info->offset_req_ies);
2769
2770 if (offset > CONTROL_BUFFER_SIZE)
2771 offset = CONTROL_BUFFER_SIZE;
2772
2773 req_ie = (u8 *)info + offset;
2774
2775 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2776 req_ie_len =
2777 CONTROL_BUFFER_SIZE - offset;
2778 }
2779
2780 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2781 if (resp_ie_len > 0) {
2782 offset = le32_to_cpu(info->offset_resp_ies);
2783
2784 if (offset > CONTROL_BUFFER_SIZE)
2785 offset = CONTROL_BUFFER_SIZE;
2786
2787 resp_ie = (u8 *)info + offset;
2788
2789 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2790 resp_ie_len =
2791 CONTROL_BUFFER_SIZE - offset;
2792 }
2793 } else {
2794 /* Since rndis_wlan_craft_connected_bss() might use info
2795 * later and expects info to contain valid data if
2796 * non-null, free info and set NULL here.
2797 */
2798 kfree(info);
2799 info = NULL;
2800 }
2801 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2802 return;
2803
2804 ret = get_bssid(usbdev, bssid);
2805 if (ret < 0)
2806 memset(bssid, 0, sizeof(bssid));
2807
2808 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2809 bssid, roamed ? " roamed" : "");
2810
2811 /* Internal bss list in device should contain at least the currently
2812 * connected bss and we can get it to cfg80211 with
2813 * rndis_check_bssid_list().
2814 *
2815 * NDIS spec says: "If the device is associated, but the associated
2816 * BSSID is not in its BSSID scan list, then the driver must add an
2817 * entry for the BSSID at the end of the data that it returns in
2818 * response to query of OID_802_11_BSSID_LIST."
2819 *
2820 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2821 */
2822 match_bss = false;
2823 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2824
2825 if (!is_zero_ether_addr(bssid) && !match_bss) {
2826 /* Couldn't get bss from device, we need to manually craft bss
2827 * for cfg80211.
2828 */
2829 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2830 }
2831
2832 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2833 if (!roamed)
2834 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2835 req_ie_len, resp_ie,
2836 resp_ie_len, 0, GFP_KERNEL);
2837 else
2838 cfg80211_roamed(usbdev->net, NULL, bssid,
2839 req_ie, req_ie_len,
2840 resp_ie, resp_ie_len, GFP_KERNEL);
2841 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2842 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2843
2844 if (info != NULL)
2845 kfree(info);
2846
2847 priv->connected = true;
2848 memcpy(priv->bssid, bssid, ETH_ALEN);
2849
2850 usbnet_resume_rx(usbdev);
2851 netif_carrier_on(usbdev->net);
2852 }
2853
2854 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2855 {
2856 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2857
2858 if (priv->connected) {
2859 priv->connected = false;
2860 memset(priv->bssid, 0, ETH_ALEN);
2861
2862 deauthenticate(usbdev);
2863
2864 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2865 }
2866
2867 netif_carrier_off(usbdev->net);
2868 }
2869
2870 static void rndis_wlan_worker(struct work_struct *work)
2871 {
2872 struct rndis_wlan_private *priv =
2873 container_of(work, struct rndis_wlan_private, work);
2874 struct usbnet *usbdev = priv->usbdev;
2875
2876 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2877 rndis_wlan_do_link_up_work(usbdev);
2878
2879 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2880 rndis_wlan_do_link_down_work(usbdev);
2881
2882 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2883 set_multicast_list(usbdev);
2884 }
2885
2886 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2887 {
2888 struct usbnet *usbdev = netdev_priv(dev);
2889 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2890
2891 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2892 return;
2893
2894 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2895 queue_work(priv->workqueue, &priv->work);
2896 }
2897
2898 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2899 struct ndis_80211_status_indication *indication,
2900 int len)
2901 {
2902 u8 *buf;
2903 const char *type;
2904 int flags, buflen, key_id;
2905 bool pairwise_error, group_error;
2906 struct ndis_80211_auth_request *auth_req;
2907 enum nl80211_key_type key_type;
2908
2909 /* must have at least one array entry */
2910 if (len < offsetof(struct ndis_80211_status_indication, u) +
2911 sizeof(struct ndis_80211_auth_request)) {
2912 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2913 len);
2914 return;
2915 }
2916
2917 buf = (void *)&indication->u.auth_request[0];
2918 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2919
2920 while (buflen >= sizeof(*auth_req)) {
2921 auth_req = (void *)buf;
2922 type = "unknown";
2923 flags = le32_to_cpu(auth_req->flags);
2924 pairwise_error = false;
2925 group_error = false;
2926
2927 if (flags & 0x1)
2928 type = "reauth request";
2929 if (flags & 0x2)
2930 type = "key update request";
2931 if (flags & 0x6) {
2932 pairwise_error = true;
2933 type = "pairwise_error";
2934 }
2935 if (flags & 0xe) {
2936 group_error = true;
2937 type = "group_error";
2938 }
2939
2940 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2941 type, le32_to_cpu(auth_req->flags));
2942
2943 if (pairwise_error) {
2944 key_type = NL80211_KEYTYPE_PAIRWISE;
2945 key_id = -1;
2946
2947 cfg80211_michael_mic_failure(usbdev->net,
2948 auth_req->bssid,
2949 key_type, key_id, NULL,
2950 GFP_KERNEL);
2951 }
2952
2953 if (group_error) {
2954 key_type = NL80211_KEYTYPE_GROUP;
2955 key_id = -1;
2956
2957 cfg80211_michael_mic_failure(usbdev->net,
2958 auth_req->bssid,
2959 key_type, key_id, NULL,
2960 GFP_KERNEL);
2961 }
2962
2963 buflen -= le32_to_cpu(auth_req->length);
2964 buf += le32_to_cpu(auth_req->length);
2965 }
2966 }
2967
2968 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2969 struct ndis_80211_status_indication *indication,
2970 int len)
2971 {
2972 struct ndis_80211_pmkid_cand_list *cand_list;
2973 int list_len, expected_len, i;
2974
2975 if (len < offsetof(struct ndis_80211_status_indication, u) +
2976 sizeof(struct ndis_80211_pmkid_cand_list)) {
2977 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2978 len);
2979 return;
2980 }
2981
2982 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2983 sizeof(struct ndis_80211_pmkid_candidate);
2984 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2985 offsetof(struct ndis_80211_status_indication, u);
2986
2987 if (len < expected_len) {
2988 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2989 len, expected_len);
2990 return;
2991 }
2992
2993 cand_list = &indication->u.cand_list;
2994
2995 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2996 le32_to_cpu(cand_list->version),
2997 le32_to_cpu(cand_list->num_candidates));
2998
2999 if (le32_to_cpu(cand_list->version) != 1)
3000 return;
3001
3002 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3003 struct ndis_80211_pmkid_candidate *cand =
3004 &cand_list->candidate_list[i];
3005
3006 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
3007 i, le32_to_cpu(cand->flags), cand->bssid);
3008
3009 #if 0
3010 struct iw_pmkid_cand pcand;
3011 union iwreq_data wrqu;
3012
3013 memset(&pcand, 0, sizeof(pcand));
3014 if (le32_to_cpu(cand->flags) & 0x01)
3015 pcand.flags |= IW_PMKID_CAND_PREAUTH;
3016 pcand.index = i;
3017 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
3018
3019 memset(&wrqu, 0, sizeof(wrqu));
3020 wrqu.data.length = sizeof(pcand);
3021 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
3022 (u8 *)&pcand);
3023 #endif
3024 }
3025 }
3026
3027 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3028 struct rndis_indicate *msg, int buflen)
3029 {
3030 struct ndis_80211_status_indication *indication;
3031 int len, offset;
3032
3033 offset = offsetof(struct rndis_indicate, status) +
3034 le32_to_cpu(msg->offset);
3035 len = le32_to_cpu(msg->length);
3036
3037 if (len < 8) {
3038 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3039 len);
3040 return;
3041 }
3042
3043 if (offset + len > buflen) {
3044 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3045 offset + len, buflen);
3046 return;
3047 }
3048
3049 indication = (void *)((u8 *)msg + offset);
3050
3051 switch (le32_to_cpu(indication->status_type)) {
3052 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3053 netdev_info(usbdev->net, "radio state indication: %i\n",
3054 le32_to_cpu(indication->u.radio_status));
3055 return;
3056
3057 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3058 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3059 le32_to_cpu(indication->u.media_stream_mode));
3060 return;
3061
3062 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3063 rndis_wlan_auth_indication(usbdev, indication, len);
3064 return;
3065
3066 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3067 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3068 return;
3069
3070 default:
3071 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3072 le32_to_cpu(indication->status_type));
3073 }
3074 }
3075
3076 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3077 {
3078 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3079 struct rndis_indicate *msg = ind;
3080
3081 switch (msg->status) {
3082 case RNDIS_STATUS_MEDIA_CONNECT:
3083 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
3084 /* OID_802_11_ADD_KEY causes sometimes extra
3085 * "media connect" indications which confuses driver
3086 * and userspace to think that device is
3087 * roaming/reassociating when it isn't.
3088 */
3089 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
3090 return;
3091 }
3092
3093 usbnet_pause_rx(usbdev);
3094
3095 netdev_info(usbdev->net, "media connect\n");
3096
3097 /* queue work to avoid recursive calls into rndis_command */
3098 set_bit(WORK_LINK_UP, &priv->work_pending);
3099 queue_work(priv->workqueue, &priv->work);
3100 break;
3101
3102 case RNDIS_STATUS_MEDIA_DISCONNECT:
3103 netdev_info(usbdev->net, "media disconnect\n");
3104
3105 /* queue work to avoid recursive calls into rndis_command */
3106 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3107 queue_work(priv->workqueue, &priv->work);
3108 break;
3109
3110 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3111 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3112 break;
3113
3114 default:
3115 netdev_info(usbdev->net, "indication: 0x%08x\n",
3116 le32_to_cpu(msg->status));
3117 break;
3118 }
3119 }
3120
3121 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3122 {
3123 struct {
3124 __le32 num_items;
3125 __le32 items[8];
3126 } networks_supported;
3127 struct ndis_80211_capability *caps;
3128 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3129 int len, retval, i, n;
3130 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3131
3132 /* determine supported modes */
3133 len = sizeof(networks_supported);
3134 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
3135 &networks_supported, &len);
3136 if (retval >= 0) {
3137 n = le32_to_cpu(networks_supported.num_items);
3138 if (n > 8)
3139 n = 8;
3140 for (i = 0; i < n; i++) {
3141 switch (le32_to_cpu(networks_supported.items[i])) {
3142 case NDIS_80211_TYPE_FREQ_HOP:
3143 case NDIS_80211_TYPE_DIRECT_SEQ:
3144 priv->caps |= CAP_MODE_80211B;
3145 break;
3146 case NDIS_80211_TYPE_OFDM_A:
3147 priv->caps |= CAP_MODE_80211A;
3148 break;
3149 case NDIS_80211_TYPE_OFDM_G:
3150 priv->caps |= CAP_MODE_80211G;
3151 break;
3152 }
3153 }
3154 }
3155
3156 /* get device 802.11 capabilities, number of PMKIDs */
3157 caps = (struct ndis_80211_capability *)caps_buf;
3158 len = sizeof(caps_buf);
3159 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3160 if (retval >= 0) {
3161 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3162 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3163 le32_to_cpu(caps->length),
3164 le32_to_cpu(caps->version),
3165 le32_to_cpu(caps->num_pmkids),
3166 le32_to_cpu(caps->num_auth_encr_pair));
3167 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3168 } else
3169 wiphy->max_num_pmkids = 0;
3170
3171 return retval;
3172 }
3173
3174 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3175 {
3176 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3177 enum nl80211_cqm_rssi_threshold_event event;
3178 int thold, hyst, last_event;
3179
3180 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3181 return;
3182 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3183 return;
3184
3185 last_event = priv->last_cqm_event_rssi;
3186 thold = priv->cqm_rssi_thold;
3187 hyst = priv->cqm_rssi_hyst;
3188
3189 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3190 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3191 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3192 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3193 else
3194 return;
3195
3196 priv->last_cqm_event_rssi = rssi;
3197 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3198 }
3199
3200 #define DEVICE_POLLER_JIFFIES (HZ)
3201 static void rndis_device_poller(struct work_struct *work)
3202 {
3203 struct rndis_wlan_private *priv =
3204 container_of(work, struct rndis_wlan_private,
3205 dev_poller_work.work);
3206 struct usbnet *usbdev = priv->usbdev;
3207 __le32 rssi, tmp;
3208 int len, ret, j;
3209 int update_jiffies = DEVICE_POLLER_JIFFIES;
3210 void *buf;
3211
3212 /* Only check/do workaround when connected. Calling is_associated()
3213 * also polls device with rndis_command() and catches for media link
3214 * indications.
3215 */
3216 if (!is_associated(usbdev)) {
3217 /* Workaround bad scanning in BCM4320a devices with active
3218 * background scanning when not associated.
3219 */
3220 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3221 !priv->scan_request) {
3222 /* Get previous scan results */
3223 rndis_check_bssid_list(usbdev, NULL, NULL);
3224
3225 /* Initiate new scan */
3226 rndis_start_bssid_list_scan(usbdev);
3227 }
3228
3229 goto end;
3230 }
3231
3232 len = sizeof(rssi);
3233 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
3234 if (ret == 0) {
3235 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3236 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3237 }
3238
3239 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3240 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3241
3242 /* Workaround transfer stalls on poor quality links.
3243 * TODO: find right way to fix these stalls (as stalls do not happen
3244 * with ndiswrapper/windows driver). */
3245 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3246 /* Decrease stats worker interval to catch stalls.
3247 * faster. Faster than 400-500ms causes packet loss,
3248 * Slower doesn't catch stalls fast enough.
3249 */
3250 j = msecs_to_jiffies(priv->param_workaround_interval);
3251 if (j > DEVICE_POLLER_JIFFIES)
3252 j = DEVICE_POLLER_JIFFIES;
3253 else if (j <= 0)
3254 j = 1;
3255 update_jiffies = j;
3256
3257 /* Send scan OID. Use of both OIDs is required to get device
3258 * working.
3259 */
3260 tmp = cpu_to_le32(1);
3261 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3262 sizeof(tmp));
3263
3264 len = CONTROL_BUFFER_SIZE;
3265 buf = kmalloc(len, GFP_KERNEL);
3266 if (!buf)
3267 goto end;
3268
3269 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3270 kfree(buf);
3271 }
3272
3273 end:
3274 if (update_jiffies >= HZ)
3275 update_jiffies = round_jiffies_relative(update_jiffies);
3276 else {
3277 j = round_jiffies_relative(update_jiffies);
3278 if (abs(j - update_jiffies) <= 10)
3279 update_jiffies = j;
3280 }
3281
3282 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3283 update_jiffies);
3284 }
3285
3286 /*
3287 * driver/device initialization
3288 */
3289 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3290 {
3291 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3292
3293 priv->device_type = device_type;
3294
3295 priv->param_country[0] = modparam_country[0];
3296 priv->param_country[1] = modparam_country[1];
3297 priv->param_country[2] = 0;
3298 priv->param_frameburst = modparam_frameburst;
3299 priv->param_afterburner = modparam_afterburner;
3300 priv->param_power_save = modparam_power_save;
3301 priv->param_power_output = modparam_power_output;
3302 priv->param_roamtrigger = modparam_roamtrigger;
3303 priv->param_roamdelta = modparam_roamdelta;
3304
3305 priv->param_country[0] = toupper(priv->param_country[0]);
3306 priv->param_country[1] = toupper(priv->param_country[1]);
3307 /* doesn't support EU as country code, use FI instead */
3308 if (!strcmp(priv->param_country, "EU"))
3309 strcpy(priv->param_country, "FI");
3310
3311 if (priv->param_power_save < 0)
3312 priv->param_power_save = 0;
3313 else if (priv->param_power_save > 2)
3314 priv->param_power_save = 2;
3315
3316 if (priv->param_power_output < 0)
3317 priv->param_power_output = 0;
3318 else if (priv->param_power_output > 3)
3319 priv->param_power_output = 3;
3320
3321 if (priv->param_roamtrigger < -80)
3322 priv->param_roamtrigger = -80;
3323 else if (priv->param_roamtrigger > -60)
3324 priv->param_roamtrigger = -60;
3325
3326 if (priv->param_roamdelta < 0)
3327 priv->param_roamdelta = 0;
3328 else if (priv->param_roamdelta > 2)
3329 priv->param_roamdelta = 2;
3330
3331 if (modparam_workaround_interval < 0)
3332 priv->param_workaround_interval = 500;
3333 else
3334 priv->param_workaround_interval = modparam_workaround_interval;
3335 }
3336
3337 static int unknown_early_init(struct usbnet *usbdev)
3338 {
3339 /* copy module parameters for unknown so that iwconfig reports txpower
3340 * and workaround parameter is copied to private structure correctly.
3341 */
3342 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3343
3344 /* This is unknown device, so do not try set configuration parameters.
3345 */
3346
3347 return 0;
3348 }
3349
3350 static int bcm4320a_early_init(struct usbnet *usbdev)
3351 {
3352 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3353 * and workaround parameter is copied to private structure correctly.
3354 */
3355 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3356
3357 /* bcm4320a doesn't handle configuration parameters well. Try
3358 * set any and you get partially zeroed mac and broken device.
3359 */
3360
3361 return 0;
3362 }
3363
3364 static int bcm4320b_early_init(struct usbnet *usbdev)
3365 {
3366 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3367 char buf[8];
3368
3369 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3370
3371 /* Early initialization settings, setting these won't have effect
3372 * if called after generic_rndis_bind().
3373 */
3374
3375 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3376 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3377 priv->param_frameburst ? "1" : "0");
3378 rndis_set_config_parameter_str(usbdev, "Afterburner",
3379 priv->param_afterburner ? "1" : "0");
3380 sprintf(buf, "%d", priv->param_power_save);
3381 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3382 sprintf(buf, "%d", priv->param_power_output);
3383 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3384 sprintf(buf, "%d", priv->param_roamtrigger);
3385 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3386 sprintf(buf, "%d", priv->param_roamdelta);
3387 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3388
3389 return 0;
3390 }
3391
3392 /* same as rndis_netdev_ops but with local multicast handler */
3393 static const struct net_device_ops rndis_wlan_netdev_ops = {
3394 .ndo_open = usbnet_open,
3395 .ndo_stop = usbnet_stop,
3396 .ndo_start_xmit = usbnet_start_xmit,
3397 .ndo_tx_timeout = usbnet_tx_timeout,
3398 .ndo_set_mac_address = eth_mac_addr,
3399 .ndo_validate_addr = eth_validate_addr,
3400 .ndo_set_rx_mode = rndis_wlan_set_multicast_list,
3401 };
3402
3403 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3404 {
3405 struct wiphy *wiphy;
3406 struct rndis_wlan_private *priv;
3407 int retval, len;
3408 __le32 tmp;
3409
3410 /* allocate wiphy and rndis private data
3411 * NOTE: We only support a single virtual interface, so wiphy
3412 * and wireless_dev are somewhat synonymous for this device.
3413 */
3414 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3415 if (!wiphy)
3416 return -ENOMEM;
3417
3418 priv = wiphy_priv(wiphy);
3419 usbdev->net->ieee80211_ptr = &priv->wdev;
3420 priv->wdev.wiphy = wiphy;
3421 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3422
3423 /* These have to be initialized before calling generic_rndis_bind().
3424 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3425 */
3426 usbdev->driver_priv = priv;
3427 priv->usbdev = usbdev;
3428
3429 mutex_init(&priv->command_lock);
3430
3431 /* because rndis_command() sleeps we need to use workqueue */
3432 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3433 INIT_WORK(&priv->work, rndis_wlan_worker);
3434 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3435 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3436
3437 /* try bind rndis_host */
3438 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3439 if (retval < 0)
3440 goto fail;
3441
3442 /* generic_rndis_bind set packet filter to multicast_all+
3443 * promisc mode which doesn't work well for our devices (device
3444 * picks up rssi to closest station instead of to access point).
3445 *
3446 * rndis_host wants to avoid all OID as much as possible
3447 * so do promisc/multicast handling in rndis_wlan.
3448 */
3449 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3450
3451 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3452 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3453 sizeof(tmp));
3454
3455 len = sizeof(tmp);
3456 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3457 &len);
3458 priv->multicast_size = le32_to_cpu(tmp);
3459 if (retval < 0 || priv->multicast_size < 0)
3460 priv->multicast_size = 0;
3461 if (priv->multicast_size > 0)
3462 usbdev->net->flags |= IFF_MULTICAST;
3463 else
3464 usbdev->net->flags &= ~IFF_MULTICAST;
3465
3466 /* fill-out wiphy structure and register w/ cfg80211 */
3467 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3468 wiphy->privid = rndis_wiphy_privid;
3469 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3470 | BIT(NL80211_IFTYPE_ADHOC);
3471 wiphy->max_scan_ssids = 1;
3472
3473 /* TODO: fill-out band/encr information based on priv->caps */
3474 rndis_wlan_get_caps(usbdev, wiphy);
3475
3476 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3477 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3478 priv->band.channels = priv->channels;
3479 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3480 priv->band.bitrates = priv->rates;
3481 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3482 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3483 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3484
3485 memcpy(priv->cipher_suites, rndis_cipher_suites,
3486 sizeof(rndis_cipher_suites));
3487 wiphy->cipher_suites = priv->cipher_suites;
3488 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3489
3490 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3491
3492 if (wiphy_register(wiphy)) {
3493 retval = -ENODEV;
3494 goto fail;
3495 }
3496
3497 set_default_iw_params(usbdev);
3498
3499 priv->power_mode = -1;
3500
3501 /* set default rts/frag */
3502 rndis_set_wiphy_params(wiphy,
3503 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3504
3505 /* turn radio off on init */
3506 priv->radio_on = false;
3507 disassociate(usbdev, false);
3508 netif_carrier_off(usbdev->net);
3509
3510 return 0;
3511
3512 fail:
3513 cancel_delayed_work_sync(&priv->dev_poller_work);
3514 cancel_delayed_work_sync(&priv->scan_work);
3515 cancel_work_sync(&priv->work);
3516 flush_workqueue(priv->workqueue);
3517 destroy_workqueue(priv->workqueue);
3518
3519 wiphy_free(wiphy);
3520 return retval;
3521 }
3522
3523 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3524 {
3525 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3526
3527 /* turn radio off */
3528 disassociate(usbdev, false);
3529
3530 cancel_delayed_work_sync(&priv->dev_poller_work);
3531 cancel_delayed_work_sync(&priv->scan_work);
3532 cancel_work_sync(&priv->work);
3533 flush_workqueue(priv->workqueue);
3534 destroy_workqueue(priv->workqueue);
3535
3536 rndis_unbind(usbdev, intf);
3537
3538 wiphy_unregister(priv->wdev.wiphy);
3539 wiphy_free(priv->wdev.wiphy);
3540 }
3541
3542 static int rndis_wlan_reset(struct usbnet *usbdev)
3543 {
3544 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3545 int retval;
3546
3547 netdev_dbg(usbdev->net, "%s()\n", __func__);
3548
3549 retval = rndis_reset(usbdev);
3550 if (retval)
3551 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3552
3553 /* rndis_reset cleared multicast list, so restore here.
3554 (set_multicast_list() also turns on current packet filter) */
3555 set_multicast_list(usbdev);
3556
3557 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3558 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3559
3560 return deauthenticate(usbdev);
3561 }
3562
3563 static int rndis_wlan_stop(struct usbnet *usbdev)
3564 {
3565 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3566 int retval;
3567 __le32 filter;
3568
3569 netdev_dbg(usbdev->net, "%s()\n", __func__);
3570
3571 retval = disassociate(usbdev, false);
3572
3573 priv->work_pending = 0;
3574 cancel_delayed_work_sync(&priv->dev_poller_work);
3575 cancel_delayed_work_sync(&priv->scan_work);
3576 cancel_work_sync(&priv->work);
3577 flush_workqueue(priv->workqueue);
3578
3579 if (priv->scan_request) {
3580 cfg80211_scan_done(priv->scan_request, true);
3581 priv->scan_request = NULL;
3582 }
3583
3584 /* Set current packet filter zero to block receiving data packets from
3585 device. */
3586 filter = 0;
3587 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3588 sizeof(filter));
3589
3590 return retval;
3591 }
3592
3593 static const struct driver_info bcm4320b_info = {
3594 .description = "Wireless RNDIS device, BCM4320b based",
3595 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3596 FLAG_AVOID_UNLINK_URBS,
3597 .bind = rndis_wlan_bind,
3598 .unbind = rndis_wlan_unbind,
3599 .status = rndis_status,
3600 .rx_fixup = rndis_rx_fixup,
3601 .tx_fixup = rndis_tx_fixup,
3602 .reset = rndis_wlan_reset,
3603 .stop = rndis_wlan_stop,
3604 .early_init = bcm4320b_early_init,
3605 .indication = rndis_wlan_indication,
3606 };
3607
3608 static const struct driver_info bcm4320a_info = {
3609 .description = "Wireless RNDIS device, BCM4320a based",
3610 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3611 FLAG_AVOID_UNLINK_URBS,
3612 .bind = rndis_wlan_bind,
3613 .unbind = rndis_wlan_unbind,
3614 .status = rndis_status,
3615 .rx_fixup = rndis_rx_fixup,
3616 .tx_fixup = rndis_tx_fixup,
3617 .reset = rndis_wlan_reset,
3618 .stop = rndis_wlan_stop,
3619 .early_init = bcm4320a_early_init,
3620 .indication = rndis_wlan_indication,
3621 };
3622
3623 static const struct driver_info rndis_wlan_info = {
3624 .description = "Wireless RNDIS device",
3625 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3626 FLAG_AVOID_UNLINK_URBS,
3627 .bind = rndis_wlan_bind,
3628 .unbind = rndis_wlan_unbind,
3629 .status = rndis_status,
3630 .rx_fixup = rndis_rx_fixup,
3631 .tx_fixup = rndis_tx_fixup,
3632 .reset = rndis_wlan_reset,
3633 .stop = rndis_wlan_stop,
3634 .early_init = unknown_early_init,
3635 .indication = rndis_wlan_indication,
3636 };
3637
3638 /*-------------------------------------------------------------------------*/
3639
3640 static const struct usb_device_id products [] = {
3641 #define RNDIS_MASTER_INTERFACE \
3642 .bInterfaceClass = USB_CLASS_COMM, \
3643 .bInterfaceSubClass = 2 /* ACM */, \
3644 .bInterfaceProtocol = 0x0ff
3645
3646 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3647 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3648 */
3649 {
3650 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3651 | USB_DEVICE_ID_MATCH_DEVICE,
3652 .idVendor = 0x0411,
3653 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3654 RNDIS_MASTER_INTERFACE,
3655 .driver_info = (unsigned long) &bcm4320b_info,
3656 }, {
3657 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3658 | USB_DEVICE_ID_MATCH_DEVICE,
3659 .idVendor = 0x0baf,
3660 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3661 RNDIS_MASTER_INTERFACE,
3662 .driver_info = (unsigned long) &bcm4320b_info,
3663 }, {
3664 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3665 | USB_DEVICE_ID_MATCH_DEVICE,
3666 .idVendor = 0x050d,
3667 .idProduct = 0x011b, /* Belkin F5D7051 */
3668 RNDIS_MASTER_INTERFACE,
3669 .driver_info = (unsigned long) &bcm4320b_info,
3670 }, {
3671 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3672 | USB_DEVICE_ID_MATCH_DEVICE,
3673 .idVendor = 0x1799, /* Belkin has two vendor ids */
3674 .idProduct = 0x011b, /* Belkin F5D7051 */
3675 RNDIS_MASTER_INTERFACE,
3676 .driver_info = (unsigned long) &bcm4320b_info,
3677 }, {
3678 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3679 | USB_DEVICE_ID_MATCH_DEVICE,
3680 .idVendor = 0x13b1,
3681 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3682 RNDIS_MASTER_INTERFACE,
3683 .driver_info = (unsigned long) &bcm4320b_info,
3684 }, {
3685 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3686 | USB_DEVICE_ID_MATCH_DEVICE,
3687 .idVendor = 0x13b1,
3688 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3689 RNDIS_MASTER_INTERFACE,
3690 .driver_info = (unsigned long) &bcm4320b_info,
3691 }, {
3692 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3693 | USB_DEVICE_ID_MATCH_DEVICE,
3694 .idVendor = 0x0b05,
3695 .idProduct = 0x1717, /* Asus WL169gE */
3696 RNDIS_MASTER_INTERFACE,
3697 .driver_info = (unsigned long) &bcm4320b_info,
3698 }, {
3699 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3700 | USB_DEVICE_ID_MATCH_DEVICE,
3701 .idVendor = 0x0a5c,
3702 .idProduct = 0xd11b, /* Eminent EM4045 */
3703 RNDIS_MASTER_INTERFACE,
3704 .driver_info = (unsigned long) &bcm4320b_info,
3705 }, {
3706 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3707 | USB_DEVICE_ID_MATCH_DEVICE,
3708 .idVendor = 0x1690,
3709 .idProduct = 0x0715, /* BT Voyager 1055 */
3710 RNDIS_MASTER_INTERFACE,
3711 .driver_info = (unsigned long) &bcm4320b_info,
3712 },
3713 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3714 * parameters available, hardware probably contain older firmware version with
3715 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3716 */
3717 {
3718 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3719 | USB_DEVICE_ID_MATCH_DEVICE,
3720 .idVendor = 0x13b1,
3721 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3722 RNDIS_MASTER_INTERFACE,
3723 .driver_info = (unsigned long) &bcm4320a_info,
3724 }, {
3725 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3726 | USB_DEVICE_ID_MATCH_DEVICE,
3727 .idVendor = 0x0baf,
3728 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3729 RNDIS_MASTER_INTERFACE,
3730 .driver_info = (unsigned long) &bcm4320a_info,
3731 }, {
3732 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3733 | USB_DEVICE_ID_MATCH_DEVICE,
3734 .idVendor = 0x0411,
3735 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3736 RNDIS_MASTER_INTERFACE,
3737 .driver_info = (unsigned long) &bcm4320a_info,
3738 },
3739 /* Generic Wireless RNDIS devices that we don't have exact
3740 * idVendor/idProduct/chip yet.
3741 */
3742 {
3743 /* RNDIS is MSFT's un-official variant of CDC ACM */
3744 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3745 .driver_info = (unsigned long) &rndis_wlan_info,
3746 }, {
3747 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3748 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3749 .driver_info = (unsigned long) &rndis_wlan_info,
3750 },
3751 { }, // END
3752 };
3753 MODULE_DEVICE_TABLE(usb, products);
3754
3755 static struct usb_driver rndis_wlan_driver = {
3756 .name = "rndis_wlan",
3757 .id_table = products,
3758 .probe = usbnet_probe,
3759 .disconnect = usbnet_disconnect,
3760 .suspend = usbnet_suspend,
3761 .resume = usbnet_resume,
3762 };
3763
3764 static int __init rndis_wlan_init(void)
3765 {
3766 return usb_register(&rndis_wlan_driver);
3767 }
3768 module_init(rndis_wlan_init);
3769
3770 static void __exit rndis_wlan_exit(void)
3771 {
3772 usb_deregister(&rndis_wlan_driver);
3773 }
3774 module_exit(rndis_wlan_exit);
3775
3776 MODULE_AUTHOR("Bjorge Dijkstra");
3777 MODULE_AUTHOR("Jussi Kivilinna");
3778 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3779 MODULE_LICENSE("GPL");
3780
Linux kernel - Deliverables
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