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cfg80211/nl80211: separate unicast/multicast default TX keys
[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/wireless.h>
40 #include <linux/ieee80211.h>
41 #include <linux/if_arp.h>
42 #include <linux/ctype.h>
43 #include <linux/spinlock.h>
44 #include <linux/slab.h>
45 #include <net/iw_handler.h>
46 #include <net/cfg80211.h>
47 #include <linux/usb/usbnet.h>
48 #include <linux/usb/rndis_host.h>
49
50
51 /* NOTE: All these are settings for Broadcom chipset */
52 static char modparam_country[4] = "EU";
53 module_param_string(country, modparam_country, 4, 0444);
54 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
55
56 static int modparam_frameburst = 1;
57 module_param_named(frameburst, modparam_frameburst, int, 0444);
58 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
59
60 static int modparam_afterburner = 0;
61 module_param_named(afterburner, modparam_afterburner, int, 0444);
62 MODULE_PARM_DESC(afterburner,
63 "enable afterburner aka '125 High Speed Mode' (default: off)");
64
65 static int modparam_power_save = 0;
66 module_param_named(power_save, modparam_power_save, int, 0444);
67 MODULE_PARM_DESC(power_save,
68 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
69
70 static int modparam_power_output = 3;
71 module_param_named(power_output, modparam_power_output, int, 0444);
72 MODULE_PARM_DESC(power_output,
73 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
74
75 static int modparam_roamtrigger = -70;
76 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
77 MODULE_PARM_DESC(roamtrigger,
78 "set roaming dBm trigger: -80=optimize for distance, "
79 "-60=bandwidth (default: -70)");
80
81 static int modparam_roamdelta = 1;
82 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
83 MODULE_PARM_DESC(roamdelta,
84 "set roaming tendency: 0=aggressive, 1=moderate, "
85 "2=conservative (default: moderate)");
86
87 static int modparam_workaround_interval;
88 module_param_named(workaround_interval, modparam_workaround_interval,
89 int, 0444);
90 MODULE_PARM_DESC(workaround_interval,
91 "set stall workaround interval in msecs (0=disabled) (default: 0)");
92
93
94 /* various RNDIS OID defs */
95 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
96 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
97
98 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
99 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
100 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
101 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
102 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
103
104 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
105 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
106 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
107
108 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
109 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
110 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
111 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
112 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
113 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
114 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
115 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
116 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
117 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
118 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
119 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
120 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
121 #define OID_802_11_CAPABILITY cpu_to_le32(0x0d010122)
122 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
123 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
124 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
125 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
126 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
127 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
128 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
129 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
130 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
131 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
132 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
133
134
135 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
136 #define WL_NOISE -96 /* typical noise level in dBm */
137 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
138
139
140 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
141 * based on wireless rndis) has default txpower of 13dBm.
142 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
143 * 100% : 20 mW ~ 13dBm
144 * 75% : 15 mW ~ 12dBm
145 * 50% : 10 mW ~ 10dBm
146 * 25% : 5 mW ~ 7dBm
147 */
148 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
149 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
150 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
151 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
152
153
154 /* codes for "status" field of completion messages */
155 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
156 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
157
158
159 /* Known device types */
160 #define RNDIS_UNKNOWN 0
161 #define RNDIS_BCM4320A 1
162 #define RNDIS_BCM4320B 2
163
164
165 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
166 * slightly modified for datatype endianess, etc
167 */
168 #define NDIS_802_11_LENGTH_SSID 32
169 #define NDIS_802_11_LENGTH_RATES 8
170 #define NDIS_802_11_LENGTH_RATES_EX 16
171
172 enum ndis_80211_net_type {
173 NDIS_80211_TYPE_FREQ_HOP,
174 NDIS_80211_TYPE_DIRECT_SEQ,
175 NDIS_80211_TYPE_OFDM_A,
176 NDIS_80211_TYPE_OFDM_G
177 };
178
179 enum ndis_80211_net_infra {
180 NDIS_80211_INFRA_ADHOC,
181 NDIS_80211_INFRA_INFRA,
182 NDIS_80211_INFRA_AUTO_UNKNOWN
183 };
184
185 enum ndis_80211_auth_mode {
186 NDIS_80211_AUTH_OPEN,
187 NDIS_80211_AUTH_SHARED,
188 NDIS_80211_AUTH_AUTO_SWITCH,
189 NDIS_80211_AUTH_WPA,
190 NDIS_80211_AUTH_WPA_PSK,
191 NDIS_80211_AUTH_WPA_NONE,
192 NDIS_80211_AUTH_WPA2,
193 NDIS_80211_AUTH_WPA2_PSK
194 };
195
196 enum ndis_80211_encr_status {
197 NDIS_80211_ENCR_WEP_ENABLED,
198 NDIS_80211_ENCR_DISABLED,
199 NDIS_80211_ENCR_WEP_KEY_ABSENT,
200 NDIS_80211_ENCR_NOT_SUPPORTED,
201 NDIS_80211_ENCR_TKIP_ENABLED,
202 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
203 NDIS_80211_ENCR_CCMP_ENABLED,
204 NDIS_80211_ENCR_CCMP_KEY_ABSENT
205 };
206
207 enum ndis_80211_priv_filter {
208 NDIS_80211_PRIV_ACCEPT_ALL,
209 NDIS_80211_PRIV_8021X_WEP
210 };
211
212 enum ndis_80211_status_type {
213 NDIS_80211_STATUSTYPE_AUTHENTICATION,
214 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
215 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
216 NDIS_80211_STATUSTYPE_RADIOSTATE,
217 };
218
219 enum ndis_80211_media_stream_mode {
220 NDIS_80211_MEDIA_STREAM_OFF,
221 NDIS_80211_MEDIA_STREAM_ON
222 };
223
224 enum ndis_80211_radio_status {
225 NDIS_80211_RADIO_STATUS_ON,
226 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
227 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
228 };
229
230 enum ndis_80211_addkey_bits {
231 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
232 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
233 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
234 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
235 };
236
237 enum ndis_80211_addwep_bits {
238 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
239 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
240 };
241
242 struct ndis_80211_auth_request {
243 __le32 length;
244 u8 bssid[6];
245 u8 padding[2];
246 __le32 flags;
247 } __packed;
248
249 struct ndis_80211_pmkid_candidate {
250 u8 bssid[6];
251 u8 padding[2];
252 __le32 flags;
253 } __packed;
254
255 struct ndis_80211_pmkid_cand_list {
256 __le32 version;
257 __le32 num_candidates;
258 struct ndis_80211_pmkid_candidate candidate_list[0];
259 } __packed;
260
261 struct ndis_80211_status_indication {
262 __le32 status_type;
263 union {
264 __le32 media_stream_mode;
265 __le32 radio_status;
266 struct ndis_80211_auth_request auth_request[0];
267 struct ndis_80211_pmkid_cand_list cand_list;
268 } u;
269 } __packed;
270
271 struct ndis_80211_ssid {
272 __le32 length;
273 u8 essid[NDIS_802_11_LENGTH_SSID];
274 } __packed;
275
276 struct ndis_80211_conf_freq_hop {
277 __le32 length;
278 __le32 hop_pattern;
279 __le32 hop_set;
280 __le32 dwell_time;
281 } __packed;
282
283 struct ndis_80211_conf {
284 __le32 length;
285 __le32 beacon_period;
286 __le32 atim_window;
287 __le32 ds_config;
288 struct ndis_80211_conf_freq_hop fh_config;
289 } __packed;
290
291 struct ndis_80211_bssid_ex {
292 __le32 length;
293 u8 mac[6];
294 u8 padding[2];
295 struct ndis_80211_ssid ssid;
296 __le32 privacy;
297 __le32 rssi;
298 __le32 net_type;
299 struct ndis_80211_conf config;
300 __le32 net_infra;
301 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
302 __le32 ie_length;
303 u8 ies[0];
304 } __packed;
305
306 struct ndis_80211_bssid_list_ex {
307 __le32 num_items;
308 struct ndis_80211_bssid_ex bssid[0];
309 } __packed;
310
311 struct ndis_80211_fixed_ies {
312 u8 timestamp[8];
313 __le16 beacon_interval;
314 __le16 capabilities;
315 } __packed;
316
317 struct ndis_80211_wep_key {
318 __le32 size;
319 __le32 index;
320 __le32 length;
321 u8 material[32];
322 } __packed;
323
324 struct ndis_80211_key {
325 __le32 size;
326 __le32 index;
327 __le32 length;
328 u8 bssid[6];
329 u8 padding[6];
330 u8 rsc[8];
331 u8 material[32];
332 } __packed;
333
334 struct ndis_80211_remove_key {
335 __le32 size;
336 __le32 index;
337 u8 bssid[6];
338 u8 padding[2];
339 } __packed;
340
341 struct ndis_config_param {
342 __le32 name_offs;
343 __le32 name_length;
344 __le32 type;
345 __le32 value_offs;
346 __le32 value_length;
347 } __packed;
348
349 struct ndis_80211_assoc_info {
350 __le32 length;
351 __le16 req_ies;
352 struct req_ie {
353 __le16 capa;
354 __le16 listen_interval;
355 u8 cur_ap_address[6];
356 } req_ie;
357 __le32 req_ie_length;
358 __le32 offset_req_ies;
359 __le16 resp_ies;
360 struct resp_ie {
361 __le16 capa;
362 __le16 status_code;
363 __le16 assoc_id;
364 } resp_ie;
365 __le32 resp_ie_length;
366 __le32 offset_resp_ies;
367 } __packed;
368
369 struct ndis_80211_auth_encr_pair {
370 __le32 auth_mode;
371 __le32 encr_mode;
372 } __packed;
373
374 struct ndis_80211_capability {
375 __le32 length;
376 __le32 version;
377 __le32 num_pmkids;
378 __le32 num_auth_encr_pair;
379 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
380 } __packed;
381
382 struct ndis_80211_bssid_info {
383 u8 bssid[6];
384 u8 pmkid[16];
385 };
386
387 struct ndis_80211_pmkid {
388 __le32 length;
389 __le32 bssid_info_count;
390 struct ndis_80211_bssid_info bssid_info[0];
391 };
392
393 /*
394 * private data
395 */
396 #define NET_TYPE_11FB 0
397
398 #define CAP_MODE_80211A 1
399 #define CAP_MODE_80211B 2
400 #define CAP_MODE_80211G 4
401 #define CAP_MODE_MASK 7
402
403 #define WORK_LINK_UP (1<<0)
404 #define WORK_LINK_DOWN (1<<1)
405 #define WORK_SET_MULTICAST_LIST (1<<2)
406
407 #define RNDIS_WLAN_ALG_NONE 0
408 #define RNDIS_WLAN_ALG_WEP (1<<0)
409 #define RNDIS_WLAN_ALG_TKIP (1<<1)
410 #define RNDIS_WLAN_ALG_CCMP (1<<2)
411
412 #define RNDIS_WLAN_KEY_MGMT_NONE 0
413 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
414 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
415
416 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
417
418 static const struct ieee80211_channel rndis_channels[] = {
419 { .center_freq = 2412 },
420 { .center_freq = 2417 },
421 { .center_freq = 2422 },
422 { .center_freq = 2427 },
423 { .center_freq = 2432 },
424 { .center_freq = 2437 },
425 { .center_freq = 2442 },
426 { .center_freq = 2447 },
427 { .center_freq = 2452 },
428 { .center_freq = 2457 },
429 { .center_freq = 2462 },
430 { .center_freq = 2467 },
431 { .center_freq = 2472 },
432 { .center_freq = 2484 },
433 };
434
435 static const struct ieee80211_rate rndis_rates[] = {
436 { .bitrate = 10 },
437 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
438 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
439 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
440 { .bitrate = 60 },
441 { .bitrate = 90 },
442 { .bitrate = 120 },
443 { .bitrate = 180 },
444 { .bitrate = 240 },
445 { .bitrate = 360 },
446 { .bitrate = 480 },
447 { .bitrate = 540 }
448 };
449
450 static const u32 rndis_cipher_suites[] = {
451 WLAN_CIPHER_SUITE_WEP40,
452 WLAN_CIPHER_SUITE_WEP104,
453 WLAN_CIPHER_SUITE_TKIP,
454 WLAN_CIPHER_SUITE_CCMP,
455 };
456
457 struct rndis_wlan_encr_key {
458 int len;
459 u32 cipher;
460 u8 material[32];
461 u8 bssid[ETH_ALEN];
462 bool pairwise;
463 bool tx_key;
464 };
465
466 /* RNDIS device private data */
467 struct rndis_wlan_private {
468 struct usbnet *usbdev;
469
470 struct wireless_dev wdev;
471
472 struct cfg80211_scan_request *scan_request;
473
474 struct workqueue_struct *workqueue;
475 struct delayed_work dev_poller_work;
476 struct delayed_work scan_work;
477 struct work_struct work;
478 struct mutex command_lock;
479 unsigned long work_pending;
480 int last_qual;
481
482 struct ieee80211_supported_band band;
483 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
484 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
485 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
486
487 int device_type;
488 int caps;
489 int multicast_size;
490
491 /* module parameters */
492 char param_country[4];
493 int param_frameburst;
494 int param_afterburner;
495 int param_power_save;
496 int param_power_output;
497 int param_roamtrigger;
498 int param_roamdelta;
499 u32 param_workaround_interval;
500
501 /* hardware state */
502 bool radio_on;
503 int infra_mode;
504 bool connected;
505 u8 bssid[ETH_ALEN];
506 struct ndis_80211_ssid essid;
507 __le32 current_command_oid;
508
509 /* encryption stuff */
510 int encr_tx_key_index;
511 struct rndis_wlan_encr_key encr_keys[4];
512 int wpa_version;
513
514 u8 command_buffer[COMMAND_BUFFER_SIZE];
515 };
516
517 /*
518 * cfg80211 ops
519 */
520 static int rndis_change_virtual_intf(struct wiphy *wiphy,
521 struct net_device *dev,
522 enum nl80211_iftype type, u32 *flags,
523 struct vif_params *params);
524
525 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
526 struct cfg80211_scan_request *request);
527
528 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
529
530 static int rndis_set_tx_power(struct wiphy *wiphy,
531 enum nl80211_tx_power_setting type,
532 int mbm);
533 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
534
535 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
536 struct cfg80211_connect_params *sme);
537
538 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
539 u16 reason_code);
540
541 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
542 struct cfg80211_ibss_params *params);
543
544 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
545
546 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
547 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
548
549 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
550 u8 key_index, bool pairwise, const u8 *mac_addr,
551 struct key_params *params);
552
553 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
554 u8 key_index, bool pairwise, const u8 *mac_addr);
555
556 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
557 u8 key_index, bool unicast, bool multicast);
558
559 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
560 u8 *mac, struct station_info *sinfo);
561
562 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
563 int idx, u8 *mac, struct station_info *sinfo);
564
565 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
566 struct cfg80211_pmksa *pmksa);
567
568 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
569 struct cfg80211_pmksa *pmksa);
570
571 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
572
573 static struct cfg80211_ops rndis_config_ops = {
574 .change_virtual_intf = rndis_change_virtual_intf,
575 .scan = rndis_scan,
576 .set_wiphy_params = rndis_set_wiphy_params,
577 .set_tx_power = rndis_set_tx_power,
578 .get_tx_power = rndis_get_tx_power,
579 .connect = rndis_connect,
580 .disconnect = rndis_disconnect,
581 .join_ibss = rndis_join_ibss,
582 .leave_ibss = rndis_leave_ibss,
583 .set_channel = rndis_set_channel,
584 .add_key = rndis_add_key,
585 .del_key = rndis_del_key,
586 .set_default_key = rndis_set_default_key,
587 .get_station = rndis_get_station,
588 .dump_station = rndis_dump_station,
589 .set_pmksa = rndis_set_pmksa,
590 .del_pmksa = rndis_del_pmksa,
591 .flush_pmksa = rndis_flush_pmksa,
592 };
593
594 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
595
596
597 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
598 {
599 return (struct rndis_wlan_private *)dev->driver_priv;
600 }
601
602 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
603 {
604 switch (priv->param_power_output) {
605 default:
606 case 3:
607 return BCM4320_DEFAULT_TXPOWER_DBM_100;
608 case 2:
609 return BCM4320_DEFAULT_TXPOWER_DBM_75;
610 case 1:
611 return BCM4320_DEFAULT_TXPOWER_DBM_50;
612 case 0:
613 return BCM4320_DEFAULT_TXPOWER_DBM_25;
614 }
615 }
616
617 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
618 {
619 int cipher = priv->encr_keys[idx].cipher;
620
621 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
622 cipher == WLAN_CIPHER_SUITE_TKIP);
623 }
624
625 static int rndis_cipher_to_alg(u32 cipher)
626 {
627 switch (cipher) {
628 default:
629 return RNDIS_WLAN_ALG_NONE;
630 case WLAN_CIPHER_SUITE_WEP40:
631 case WLAN_CIPHER_SUITE_WEP104:
632 return RNDIS_WLAN_ALG_WEP;
633 case WLAN_CIPHER_SUITE_TKIP:
634 return RNDIS_WLAN_ALG_TKIP;
635 case WLAN_CIPHER_SUITE_CCMP:
636 return RNDIS_WLAN_ALG_CCMP;
637 }
638 }
639
640 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
641 {
642 switch (akm_suite) {
643 default:
644 return RNDIS_WLAN_KEY_MGMT_NONE;
645 case WLAN_AKM_SUITE_8021X:
646 return RNDIS_WLAN_KEY_MGMT_802_1X;
647 case WLAN_AKM_SUITE_PSK:
648 return RNDIS_WLAN_KEY_MGMT_PSK;
649 }
650 }
651
652 #ifdef DEBUG
653 static const char *oid_to_string(__le32 oid)
654 {
655 switch (oid) {
656 #define OID_STR(oid) case oid: return(#oid)
657 /* from rndis_host.h */
658 OID_STR(OID_802_3_PERMANENT_ADDRESS);
659 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
660 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
661 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
662
663 /* from rndis_wlan.c */
664 OID_STR(OID_GEN_LINK_SPEED);
665 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
666
667 OID_STR(OID_GEN_XMIT_OK);
668 OID_STR(OID_GEN_RCV_OK);
669 OID_STR(OID_GEN_XMIT_ERROR);
670 OID_STR(OID_GEN_RCV_ERROR);
671 OID_STR(OID_GEN_RCV_NO_BUFFER);
672
673 OID_STR(OID_802_3_CURRENT_ADDRESS);
674 OID_STR(OID_802_3_MULTICAST_LIST);
675 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
676
677 OID_STR(OID_802_11_BSSID);
678 OID_STR(OID_802_11_SSID);
679 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
680 OID_STR(OID_802_11_ADD_WEP);
681 OID_STR(OID_802_11_REMOVE_WEP);
682 OID_STR(OID_802_11_DISASSOCIATE);
683 OID_STR(OID_802_11_AUTHENTICATION_MODE);
684 OID_STR(OID_802_11_PRIVACY_FILTER);
685 OID_STR(OID_802_11_BSSID_LIST_SCAN);
686 OID_STR(OID_802_11_ENCRYPTION_STATUS);
687 OID_STR(OID_802_11_ADD_KEY);
688 OID_STR(OID_802_11_REMOVE_KEY);
689 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
690 OID_STR(OID_802_11_PMKID);
691 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
692 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
693 OID_STR(OID_802_11_TX_POWER_LEVEL);
694 OID_STR(OID_802_11_RSSI);
695 OID_STR(OID_802_11_RSSI_TRIGGER);
696 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
697 OID_STR(OID_802_11_RTS_THRESHOLD);
698 OID_STR(OID_802_11_SUPPORTED_RATES);
699 OID_STR(OID_802_11_CONFIGURATION);
700 OID_STR(OID_802_11_BSSID_LIST);
701 #undef OID_STR
702 }
703
704 return "?";
705 }
706 #else
707 static const char *oid_to_string(__le32 oid)
708 {
709 return "?";
710 }
711 #endif
712
713 /* translate error code */
714 static int rndis_error_status(__le32 rndis_status)
715 {
716 int ret = -EINVAL;
717 switch (rndis_status) {
718 case RNDIS_STATUS_SUCCESS:
719 ret = 0;
720 break;
721 case RNDIS_STATUS_FAILURE:
722 case RNDIS_STATUS_INVALID_DATA:
723 ret = -EINVAL;
724 break;
725 case RNDIS_STATUS_NOT_SUPPORTED:
726 ret = -EOPNOTSUPP;
727 break;
728 case RNDIS_STATUS_ADAPTER_NOT_READY:
729 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
730 ret = -EBUSY;
731 break;
732 }
733 return ret;
734 }
735
736 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
737 {
738 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
739 union {
740 void *buf;
741 struct rndis_msg_hdr *header;
742 struct rndis_query *get;
743 struct rndis_query_c *get_c;
744 } u;
745 int ret, buflen;
746 int resplen, respoffs, copylen;
747
748 buflen = *len + sizeof(*u.get);
749 if (buflen < CONTROL_BUFFER_SIZE)
750 buflen = CONTROL_BUFFER_SIZE;
751
752 if (buflen > COMMAND_BUFFER_SIZE) {
753 u.buf = kmalloc(buflen, GFP_KERNEL);
754 if (!u.buf)
755 return -ENOMEM;
756 } else {
757 u.buf = priv->command_buffer;
758 }
759
760 mutex_lock(&priv->command_lock);
761
762 memset(u.get, 0, sizeof *u.get);
763 u.get->msg_type = RNDIS_MSG_QUERY;
764 u.get->msg_len = cpu_to_le32(sizeof *u.get);
765 u.get->oid = oid;
766
767 priv->current_command_oid = oid;
768 ret = rndis_command(dev, u.header, buflen);
769 priv->current_command_oid = 0;
770 if (ret < 0)
771 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
772 __func__, oid_to_string(oid), ret,
773 le32_to_cpu(u.get_c->status));
774
775 if (ret == 0) {
776 resplen = le32_to_cpu(u.get_c->len);
777 respoffs = le32_to_cpu(u.get_c->offset) + 8;
778
779 if (respoffs > buflen) {
780 /* Device returned data offset outside buffer, error. */
781 netdev_dbg(dev->net, "%s(%s): received invalid "
782 "data offset: %d > %d\n", __func__,
783 oid_to_string(oid), respoffs, buflen);
784
785 ret = -EINVAL;
786 goto exit_unlock;
787 }
788
789 if ((resplen + respoffs) > buflen) {
790 /* Device would have returned more data if buffer would
791 * have been big enough. Copy just the bits that we got.
792 */
793 copylen = buflen - respoffs;
794 } else {
795 copylen = resplen;
796 }
797
798 if (copylen > *len)
799 copylen = *len;
800
801 memcpy(data, u.buf + respoffs, copylen);
802
803 *len = resplen;
804
805 ret = rndis_error_status(u.get_c->status);
806 if (ret < 0)
807 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
808 __func__, oid_to_string(oid),
809 le32_to_cpu(u.get_c->status), ret);
810 }
811
812 exit_unlock:
813 mutex_unlock(&priv->command_lock);
814
815 if (u.buf != priv->command_buffer)
816 kfree(u.buf);
817 return ret;
818 }
819
820 static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
821 int len)
822 {
823 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
824 union {
825 void *buf;
826 struct rndis_msg_hdr *header;
827 struct rndis_set *set;
828 struct rndis_set_c *set_c;
829 } u;
830 int ret, buflen;
831
832 buflen = len + sizeof(*u.set);
833 if (buflen < CONTROL_BUFFER_SIZE)
834 buflen = CONTROL_BUFFER_SIZE;
835
836 if (buflen > COMMAND_BUFFER_SIZE) {
837 u.buf = kmalloc(buflen, GFP_KERNEL);
838 if (!u.buf)
839 return -ENOMEM;
840 } else {
841 u.buf = priv->command_buffer;
842 }
843
844 mutex_lock(&priv->command_lock);
845
846 memset(u.set, 0, sizeof *u.set);
847 u.set->msg_type = RNDIS_MSG_SET;
848 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
849 u.set->oid = oid;
850 u.set->len = cpu_to_le32(len);
851 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
852 u.set->handle = cpu_to_le32(0);
853 memcpy(u.buf + sizeof(*u.set), data, len);
854
855 priv->current_command_oid = oid;
856 ret = rndis_command(dev, u.header, buflen);
857 priv->current_command_oid = 0;
858 if (ret < 0)
859 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
860 __func__, oid_to_string(oid), ret,
861 le32_to_cpu(u.set_c->status));
862
863 if (ret == 0) {
864 ret = rndis_error_status(u.set_c->status);
865
866 if (ret < 0)
867 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
868 __func__, oid_to_string(oid),
869 le32_to_cpu(u.set_c->status), ret);
870 }
871
872 mutex_unlock(&priv->command_lock);
873
874 if (u.buf != priv->command_buffer)
875 kfree(u.buf);
876 return ret;
877 }
878
879 static int rndis_reset(struct usbnet *usbdev)
880 {
881 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
882 struct rndis_reset *reset;
883 int ret;
884
885 mutex_lock(&priv->command_lock);
886
887 reset = (void *)priv->command_buffer;
888 memset(reset, 0, sizeof(*reset));
889 reset->msg_type = RNDIS_MSG_RESET;
890 reset->msg_len = cpu_to_le32(sizeof(*reset));
891 priv->current_command_oid = 0;
892 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
893
894 mutex_unlock(&priv->command_lock);
895
896 if (ret < 0)
897 return ret;
898 return 0;
899 }
900
901 /*
902 * Specs say that we can only set config parameters only soon after device
903 * initialization.
904 * value_type: 0 = u32, 2 = unicode string
905 */
906 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
907 int value_type, void *value)
908 {
909 struct ndis_config_param *infobuf;
910 int value_len, info_len, param_len, ret, i;
911 __le16 *unibuf;
912 __le32 *dst_value;
913
914 if (value_type == 0)
915 value_len = sizeof(__le32);
916 else if (value_type == 2)
917 value_len = strlen(value) * sizeof(__le16);
918 else
919 return -EINVAL;
920
921 param_len = strlen(param) * sizeof(__le16);
922 info_len = sizeof(*infobuf) + param_len + value_len;
923
924 #ifdef DEBUG
925 info_len += 12;
926 #endif
927 infobuf = kmalloc(info_len, GFP_KERNEL);
928 if (!infobuf)
929 return -ENOMEM;
930
931 #ifdef DEBUG
932 info_len -= 12;
933 /* extra 12 bytes are for padding (debug output) */
934 memset(infobuf, 0xCC, info_len + 12);
935 #endif
936
937 if (value_type == 2)
938 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
939 param, (u8 *)value);
940 else
941 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
942 param, *(u32 *)value);
943
944 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
945 infobuf->name_length = cpu_to_le32(param_len);
946 infobuf->type = cpu_to_le32(value_type);
947 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
948 infobuf->value_length = cpu_to_le32(value_len);
949
950 /* simple string to unicode string conversion */
951 unibuf = (void *)infobuf + sizeof(*infobuf);
952 for (i = 0; i < param_len / sizeof(__le16); i++)
953 unibuf[i] = cpu_to_le16(param[i]);
954
955 if (value_type == 2) {
956 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
957 for (i = 0; i < value_len / sizeof(__le16); i++)
958 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
959 } else {
960 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
961 *dst_value = cpu_to_le32(*(u32 *)value);
962 }
963
964 #ifdef DEBUG
965 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
966 for (i = 0; i < info_len; i += 12) {
967 u32 *tmp = (u32 *)((u8 *)infobuf + i);
968 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
969 cpu_to_be32(tmp[0]),
970 cpu_to_be32(tmp[1]),
971 cpu_to_be32(tmp[2]));
972 }
973 #endif
974
975 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
976 infobuf, info_len);
977 if (ret != 0)
978 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
979 ret);
980
981 kfree(infobuf);
982 return ret;
983 }
984
985 static int rndis_set_config_parameter_str(struct usbnet *dev,
986 char *param, char *value)
987 {
988 return rndis_set_config_parameter(dev, param, 2, value);
989 }
990
991 /*
992 * data conversion functions
993 */
994 static int level_to_qual(int level)
995 {
996 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
997 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
998 }
999
1000 /*
1001 * common functions
1002 */
1003 static int set_infra_mode(struct usbnet *usbdev, int mode);
1004 static void restore_keys(struct usbnet *usbdev);
1005 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1006 bool *matched);
1007
1008 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1009 {
1010 __le32 tmp;
1011
1012 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1013 tmp = cpu_to_le32(1);
1014 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1015 sizeof(tmp));
1016 }
1017
1018 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
1019 {
1020 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1021 int ret;
1022
1023 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
1024 if (ret < 0) {
1025 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1026 return ret;
1027 }
1028 if (ret == 0) {
1029 memcpy(&priv->essid, ssid, sizeof(priv->essid));
1030 priv->radio_on = true;
1031 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1032 }
1033
1034 return ret;
1035 }
1036
1037 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1038 {
1039 int ret;
1040
1041 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1042 if (ret < 0) {
1043 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1044 bssid, ret);
1045 return ret;
1046 }
1047
1048 return ret;
1049 }
1050
1051 static int clear_bssid(struct usbnet *usbdev)
1052 {
1053 static const u8 broadcast_mac[ETH_ALEN] = {
1054 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1055 };
1056
1057 return set_bssid(usbdev, broadcast_mac);
1058 }
1059
1060 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1061 {
1062 int ret, len;
1063
1064 len = ETH_ALEN;
1065 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1066
1067 if (ret != 0)
1068 memset(bssid, 0, ETH_ALEN);
1069
1070 return ret;
1071 }
1072
1073 static int get_association_info(struct usbnet *usbdev,
1074 struct ndis_80211_assoc_info *info, int len)
1075 {
1076 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1077 info, &len);
1078 }
1079
1080 static bool is_associated(struct usbnet *usbdev)
1081 {
1082 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1083 u8 bssid[ETH_ALEN];
1084 int ret;
1085
1086 if (!priv->radio_on)
1087 return false;
1088
1089 ret = get_bssid(usbdev, bssid);
1090
1091 return (ret == 0 && !is_zero_ether_addr(bssid));
1092 }
1093
1094 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1095 {
1096 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1097 struct ndis_80211_ssid ssid;
1098 int i, ret = 0;
1099
1100 if (priv->radio_on) {
1101 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1102 if (ret == 0) {
1103 priv->radio_on = false;
1104 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1105 __func__);
1106
1107 if (reset_ssid)
1108 msleep(100);
1109 }
1110 }
1111
1112 /* disassociate causes radio to be turned off; if reset_ssid
1113 * is given, set random ssid to enable radio */
1114 if (reset_ssid) {
1115 /* Set device to infrastructure mode so we don't get ad-hoc
1116 * 'media connect' indications with the random ssid.
1117 */
1118 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1119
1120 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1121 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1122 ssid.essid[0] = 0x1;
1123 ssid.essid[1] = 0xff;
1124 for (i = 2; i < sizeof(ssid.essid); i++)
1125 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1126 ret = set_essid(usbdev, &ssid);
1127 }
1128 return ret;
1129 }
1130
1131 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1132 enum nl80211_auth_type auth_type, int keymgmt)
1133 {
1134 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1135 __le32 tmp;
1136 int auth_mode, ret;
1137
1138 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1139 __func__, wpa_version, auth_type, keymgmt);
1140
1141 if (wpa_version & NL80211_WPA_VERSION_2) {
1142 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1143 auth_mode = NDIS_80211_AUTH_WPA2;
1144 else
1145 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1146 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1147 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1148 auth_mode = NDIS_80211_AUTH_WPA;
1149 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1150 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1151 else
1152 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1153 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1154 auth_mode = NDIS_80211_AUTH_SHARED;
1155 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1156 auth_mode = NDIS_80211_AUTH_OPEN;
1157 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1158 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1159 else
1160 return -ENOTSUPP;
1161
1162 tmp = cpu_to_le32(auth_mode);
1163 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1164 sizeof(tmp));
1165 if (ret != 0) {
1166 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1167 ret);
1168 return ret;
1169 }
1170
1171 priv->wpa_version = wpa_version;
1172
1173 return 0;
1174 }
1175
1176 static int set_priv_filter(struct usbnet *usbdev)
1177 {
1178 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1179 __le32 tmp;
1180
1181 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1182 __func__, priv->wpa_version);
1183
1184 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1185 priv->wpa_version & NL80211_WPA_VERSION_1)
1186 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1187 else
1188 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1189
1190 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1191 sizeof(tmp));
1192 }
1193
1194 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1195 {
1196 __le32 tmp;
1197 int encr_mode, ret;
1198
1199 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1200 __func__, pairwise, groupwise);
1201
1202 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1203 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1204 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1205 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1206 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1207 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1208 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1209 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1210 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1211 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1212 else
1213 encr_mode = NDIS_80211_ENCR_DISABLED;
1214
1215 tmp = cpu_to_le32(encr_mode);
1216 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1217 sizeof(tmp));
1218 if (ret != 0) {
1219 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1220 ret);
1221 return ret;
1222 }
1223
1224 return 0;
1225 }
1226
1227 static int set_infra_mode(struct usbnet *usbdev, int mode)
1228 {
1229 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1230 __le32 tmp;
1231 int ret;
1232
1233 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1234 __func__, priv->infra_mode);
1235
1236 tmp = cpu_to_le32(mode);
1237 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1238 sizeof(tmp));
1239 if (ret != 0) {
1240 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1241 ret);
1242 return ret;
1243 }
1244
1245 /* NDIS drivers clear keys when infrastructure mode is
1246 * changed. But Linux tools assume otherwise. So set the
1247 * keys */
1248 restore_keys(usbdev);
1249
1250 priv->infra_mode = mode;
1251 return 0;
1252 }
1253
1254 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1255 {
1256 __le32 tmp;
1257
1258 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1259
1260 if (rts_threshold < 0 || rts_threshold > 2347)
1261 rts_threshold = 2347;
1262
1263 tmp = cpu_to_le32(rts_threshold);
1264 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1265 sizeof(tmp));
1266 }
1267
1268 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1269 {
1270 __le32 tmp;
1271
1272 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1273
1274 if (frag_threshold < 256 || frag_threshold > 2346)
1275 frag_threshold = 2346;
1276
1277 tmp = cpu_to_le32(frag_threshold);
1278 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1279 sizeof(tmp));
1280 }
1281
1282 static void set_default_iw_params(struct usbnet *usbdev)
1283 {
1284 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1285 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1286 RNDIS_WLAN_KEY_MGMT_NONE);
1287 set_priv_filter(usbdev);
1288 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1289 }
1290
1291 static int deauthenticate(struct usbnet *usbdev)
1292 {
1293 int ret;
1294
1295 ret = disassociate(usbdev, true);
1296 set_default_iw_params(usbdev);
1297 return ret;
1298 }
1299
1300 static int set_channel(struct usbnet *usbdev, int channel)
1301 {
1302 struct ndis_80211_conf config;
1303 unsigned int dsconfig;
1304 int len, ret;
1305
1306 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1307
1308 /* this OID is valid only when not associated */
1309 if (is_associated(usbdev))
1310 return 0;
1311
1312 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1313
1314 len = sizeof(config);
1315 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1316 if (ret < 0) {
1317 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1318 __func__);
1319 return ret;
1320 }
1321
1322 config.ds_config = cpu_to_le32(dsconfig);
1323 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1324 sizeof(config));
1325
1326 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1327
1328 return ret;
1329 }
1330
1331 /* index must be 0 - N, as per NDIS */
1332 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1333 int index)
1334 {
1335 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1336 struct ndis_80211_wep_key ndis_key;
1337 u32 cipher;
1338 int ret;
1339
1340 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1341 __func__, index, key_len);
1342
1343 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1344 return -EINVAL;
1345
1346 if (key_len == 5)
1347 cipher = WLAN_CIPHER_SUITE_WEP40;
1348 else
1349 cipher = WLAN_CIPHER_SUITE_WEP104;
1350
1351 memset(&ndis_key, 0, sizeof(ndis_key));
1352
1353 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1354 ndis_key.length = cpu_to_le32(key_len);
1355 ndis_key.index = cpu_to_le32(index);
1356 memcpy(&ndis_key.material, key, key_len);
1357
1358 if (index == priv->encr_tx_key_index) {
1359 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1360 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1361 RNDIS_WLAN_ALG_NONE);
1362 if (ret)
1363 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1364 ret);
1365 }
1366
1367 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1368 sizeof(ndis_key));
1369 if (ret != 0) {
1370 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1371 index + 1, ret);
1372 return ret;
1373 }
1374
1375 priv->encr_keys[index].len = key_len;
1376 priv->encr_keys[index].cipher = cipher;
1377 memcpy(&priv->encr_keys[index].material, key, key_len);
1378 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1379
1380 return 0;
1381 }
1382
1383 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1384 int index, const u8 *addr, const u8 *rx_seq,
1385 int seq_len, u32 cipher, __le32 flags)
1386 {
1387 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1388 struct ndis_80211_key ndis_key;
1389 bool is_addr_ok;
1390 int ret;
1391
1392 if (index < 0 || index >= 4) {
1393 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1394 __func__, index);
1395 return -EINVAL;
1396 }
1397 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1398 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1399 __func__, key_len);
1400 return -EINVAL;
1401 }
1402 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1403 if (!rx_seq || seq_len <= 0) {
1404 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1405 __func__);
1406 return -EINVAL;
1407 }
1408 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1409 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1410 return -EINVAL;
1411 }
1412 }
1413
1414 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1415 !is_broadcast_ether_addr(addr);
1416 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1417 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1418 __func__, addr);
1419 return -EINVAL;
1420 }
1421
1422 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1423 __func__, index,
1424 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1425 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1426 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1427
1428 memset(&ndis_key, 0, sizeof(ndis_key));
1429
1430 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1431 sizeof(ndis_key.material) + key_len);
1432 ndis_key.length = cpu_to_le32(key_len);
1433 ndis_key.index = cpu_to_le32(index) | flags;
1434
1435 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1436 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1437 * different order than NDIS spec, so swap the order here. */
1438 memcpy(ndis_key.material, key, 16);
1439 memcpy(ndis_key.material + 16, key + 24, 8);
1440 memcpy(ndis_key.material + 24, key + 16, 8);
1441 } else
1442 memcpy(ndis_key.material, key, key_len);
1443
1444 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1445 memcpy(ndis_key.rsc, rx_seq, seq_len);
1446
1447 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1448 /* pairwise key */
1449 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1450 } else {
1451 /* group key */
1452 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1453 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1454 else
1455 get_bssid(usbdev, ndis_key.bssid);
1456 }
1457
1458 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1459 le32_to_cpu(ndis_key.size));
1460 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1461 __func__, ret);
1462 if (ret != 0)
1463 return ret;
1464
1465 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1466 priv->encr_keys[index].len = key_len;
1467 priv->encr_keys[index].cipher = cipher;
1468 memcpy(&priv->encr_keys[index].material, key, key_len);
1469 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1470 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1471 else
1472 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1473
1474 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1475 priv->encr_tx_key_index = index;
1476
1477 return 0;
1478 }
1479
1480 static int restore_key(struct usbnet *usbdev, int key_idx)
1481 {
1482 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1483 struct rndis_wlan_encr_key key;
1484
1485 if (is_wpa_key(priv, key_idx))
1486 return 0;
1487
1488 key = priv->encr_keys[key_idx];
1489
1490 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1491
1492 if (key.len == 0)
1493 return 0;
1494
1495 return add_wep_key(usbdev, key.material, key.len, key_idx);
1496 }
1497
1498 static void restore_keys(struct usbnet *usbdev)
1499 {
1500 int i;
1501
1502 for (i = 0; i < 4; i++)
1503 restore_key(usbdev, i);
1504 }
1505
1506 static void clear_key(struct rndis_wlan_private *priv, int idx)
1507 {
1508 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1509 }
1510
1511 /* remove_key is for both wep and wpa */
1512 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1513 {
1514 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1515 struct ndis_80211_remove_key remove_key;
1516 __le32 keyindex;
1517 bool is_wpa;
1518 int ret;
1519
1520 if (priv->encr_keys[index].len == 0)
1521 return 0;
1522
1523 is_wpa = is_wpa_key(priv, index);
1524
1525 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1526 __func__, index, is_wpa ? "wpa" : "wep",
1527 priv->encr_keys[index].len);
1528
1529 clear_key(priv, index);
1530
1531 if (is_wpa) {
1532 remove_key.size = cpu_to_le32(sizeof(remove_key));
1533 remove_key.index = cpu_to_le32(index);
1534 if (bssid) {
1535 /* pairwise key */
1536 if (!is_broadcast_ether_addr(bssid))
1537 remove_key.index |=
1538 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1539 memcpy(remove_key.bssid, bssid,
1540 sizeof(remove_key.bssid));
1541 } else
1542 memset(remove_key.bssid, 0xff,
1543 sizeof(remove_key.bssid));
1544
1545 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1546 sizeof(remove_key));
1547 if (ret != 0)
1548 return ret;
1549 } else {
1550 keyindex = cpu_to_le32(index);
1551 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1552 sizeof(keyindex));
1553 if (ret != 0) {
1554 netdev_warn(usbdev->net,
1555 "removing encryption key %d failed (%08X)\n",
1556 index, ret);
1557 return ret;
1558 }
1559 }
1560
1561 /* if it is transmit key, disable encryption */
1562 if (index == priv->encr_tx_key_index)
1563 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1564
1565 return 0;
1566 }
1567
1568 static void set_multicast_list(struct usbnet *usbdev)
1569 {
1570 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1571 struct netdev_hw_addr *ha;
1572 __le32 filter, basefilter;
1573 int ret;
1574 char *mc_addrs = NULL;
1575 int mc_count;
1576
1577 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1578 RNDIS_PACKET_TYPE_BROADCAST;
1579
1580 if (usbdev->net->flags & IFF_PROMISC) {
1581 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1582 RNDIS_PACKET_TYPE_ALL_LOCAL;
1583 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1584 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1585 }
1586
1587 if (filter != basefilter)
1588 goto set_filter;
1589
1590 /*
1591 * mc_list should be accessed holding the lock, so copy addresses to
1592 * local buffer first.
1593 */
1594 netif_addr_lock_bh(usbdev->net);
1595 mc_count = netdev_mc_count(usbdev->net);
1596 if (mc_count > priv->multicast_size) {
1597 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1598 } else if (mc_count) {
1599 int i = 0;
1600
1601 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1602 if (!mc_addrs) {
1603 netdev_warn(usbdev->net,
1604 "couldn't alloc %d bytes of memory\n",
1605 mc_count * ETH_ALEN);
1606 netif_addr_unlock_bh(usbdev->net);
1607 return;
1608 }
1609
1610 netdev_for_each_mc_addr(ha, usbdev->net)
1611 memcpy(mc_addrs + i++ * ETH_ALEN,
1612 ha->addr, ETH_ALEN);
1613 }
1614 netif_addr_unlock_bh(usbdev->net);
1615
1616 if (filter != basefilter)
1617 goto set_filter;
1618
1619 if (mc_count) {
1620 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1621 mc_count * ETH_ALEN);
1622 kfree(mc_addrs);
1623 if (ret == 0)
1624 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1625 else
1626 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1627
1628 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1629 mc_count, priv->multicast_size, ret);
1630 }
1631
1632 set_filter:
1633 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1634 sizeof(filter));
1635 if (ret < 0) {
1636 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1637 le32_to_cpu(filter));
1638 }
1639
1640 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1641 le32_to_cpu(filter), ret);
1642 }
1643
1644 #ifdef DEBUG
1645 static void debug_print_pmkids(struct usbnet *usbdev,
1646 struct ndis_80211_pmkid *pmkids,
1647 const char *func_str)
1648 {
1649 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1650 int i, len, count, max_pmkids, entry_len;
1651
1652 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1653 len = le32_to_cpu(pmkids->length);
1654 count = le32_to_cpu(pmkids->bssid_info_count);
1655
1656 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1657
1658 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1659 "%d)\n", func_str, count, len, entry_len);
1660
1661 if (count > max_pmkids)
1662 count = max_pmkids;
1663
1664 for (i = 0; i < count; i++) {
1665 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1666
1667 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1668 "pmkid: %08X:%08X:%08X:%08X\n",
1669 func_str, pmkids->bssid_info[i].bssid,
1670 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1671 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1672 }
1673 }
1674 #else
1675 static void debug_print_pmkids(struct usbnet *usbdev,
1676 struct ndis_80211_pmkid *pmkids,
1677 const char *func_str)
1678 {
1679 return;
1680 }
1681 #endif
1682
1683 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1684 {
1685 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1686 struct ndis_80211_pmkid *pmkids;
1687 int len, ret, max_pmkids;
1688
1689 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1690 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1691
1692 pmkids = kzalloc(len, GFP_KERNEL);
1693 if (!pmkids)
1694 return ERR_PTR(-ENOMEM);
1695
1696 pmkids->length = cpu_to_le32(len);
1697 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1698
1699 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1700 if (ret < 0) {
1701 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1702 " -> %d\n", __func__, len, max_pmkids, ret);
1703
1704 kfree(pmkids);
1705 return ERR_PTR(ret);
1706 }
1707
1708 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1709 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1710
1711 debug_print_pmkids(usbdev, pmkids, __func__);
1712
1713 return pmkids;
1714 }
1715
1716 static int set_device_pmkids(struct usbnet *usbdev,
1717 struct ndis_80211_pmkid *pmkids)
1718 {
1719 int ret, len, num_pmkids;
1720
1721 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1722 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1723 pmkids->length = cpu_to_le32(len);
1724
1725 debug_print_pmkids(usbdev, pmkids, __func__);
1726
1727 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1728 le32_to_cpu(pmkids->length));
1729 if (ret < 0) {
1730 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1731 "\n", __func__, len, num_pmkids, ret);
1732 }
1733
1734 kfree(pmkids);
1735 return ret;
1736 }
1737
1738 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1739 struct ndis_80211_pmkid *pmkids,
1740 struct cfg80211_pmksa *pmksa,
1741 int max_pmkids)
1742 {
1743 int i, len, count, newlen, err;
1744
1745 len = le32_to_cpu(pmkids->length);
1746 count = le32_to_cpu(pmkids->bssid_info_count);
1747
1748 if (count > max_pmkids)
1749 count = max_pmkids;
1750
1751 for (i = 0; i < count; i++)
1752 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1753 pmksa->bssid))
1754 break;
1755
1756 /* pmkid not found */
1757 if (i == count) {
1758 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1759 __func__, pmksa->bssid);
1760 err = -ENOENT;
1761 goto error;
1762 }
1763
1764 for (; i + 1 < count; i++)
1765 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1766
1767 count--;
1768 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1769
1770 pmkids->length = cpu_to_le32(newlen);
1771 pmkids->bssid_info_count = cpu_to_le32(count);
1772
1773 return pmkids;
1774 error:
1775 kfree(pmkids);
1776 return ERR_PTR(err);
1777 }
1778
1779 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1780 struct ndis_80211_pmkid *pmkids,
1781 struct cfg80211_pmksa *pmksa,
1782 int max_pmkids)
1783 {
1784 int i, err, len, count, newlen;
1785
1786 len = le32_to_cpu(pmkids->length);
1787 count = le32_to_cpu(pmkids->bssid_info_count);
1788
1789 if (count > max_pmkids)
1790 count = max_pmkids;
1791
1792 /* update with new pmkid */
1793 for (i = 0; i < count; i++) {
1794 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1795 pmksa->bssid))
1796 continue;
1797
1798 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1799 WLAN_PMKID_LEN);
1800
1801 return pmkids;
1802 }
1803
1804 /* out of space, return error */
1805 if (i == max_pmkids) {
1806 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1807 err = -ENOSPC;
1808 goto error;
1809 }
1810
1811 /* add new pmkid */
1812 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1813
1814 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1815 if (!pmkids) {
1816 err = -ENOMEM;
1817 goto error;
1818 }
1819
1820 pmkids->length = cpu_to_le32(newlen);
1821 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1822
1823 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1824 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1825
1826 return pmkids;
1827 error:
1828 kfree(pmkids);
1829 return ERR_PTR(err);
1830 }
1831
1832 /*
1833 * cfg80211 ops
1834 */
1835 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1836 struct net_device *dev,
1837 enum nl80211_iftype type, u32 *flags,
1838 struct vif_params *params)
1839 {
1840 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1841 struct usbnet *usbdev = priv->usbdev;
1842 int mode;
1843
1844 switch (type) {
1845 case NL80211_IFTYPE_ADHOC:
1846 mode = NDIS_80211_INFRA_ADHOC;
1847 break;
1848 case NL80211_IFTYPE_STATION:
1849 mode = NDIS_80211_INFRA_INFRA;
1850 break;
1851 default:
1852 return -EINVAL;
1853 }
1854
1855 priv->wdev.iftype = type;
1856
1857 return set_infra_mode(usbdev, mode);
1858 }
1859
1860 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1861 {
1862 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1863 struct usbnet *usbdev = priv->usbdev;
1864 int err;
1865
1866 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1867 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1868 if (err < 0)
1869 return err;
1870 }
1871
1872 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1873 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1874 if (err < 0)
1875 return err;
1876 }
1877
1878 return 0;
1879 }
1880
1881 static int rndis_set_tx_power(struct wiphy *wiphy,
1882 enum nl80211_tx_power_setting type,
1883 int mbm)
1884 {
1885 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1886 struct usbnet *usbdev = priv->usbdev;
1887
1888 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1889 __func__, type, mbm);
1890
1891 if (mbm < 0 || (mbm % 100))
1892 return -ENOTSUPP;
1893
1894 /* Device doesn't support changing txpower after initialization, only
1895 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1896 * currently used.
1897 */
1898 if (type == NL80211_TX_POWER_AUTOMATIC ||
1899 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1900 if (!priv->radio_on)
1901 disassociate(usbdev, true); /* turn on radio */
1902
1903 return 0;
1904 }
1905
1906 return -ENOTSUPP;
1907 }
1908
1909 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1910 {
1911 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1912 struct usbnet *usbdev = priv->usbdev;
1913
1914 *dbm = get_bcm4320_power_dbm(priv);
1915
1916 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1917
1918 return 0;
1919 }
1920
1921 #define SCAN_DELAY_JIFFIES (6 * HZ)
1922 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1923 struct cfg80211_scan_request *request)
1924 {
1925 struct usbnet *usbdev = netdev_priv(dev);
1926 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1927 int ret;
1928 int delay = SCAN_DELAY_JIFFIES;
1929
1930 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1931
1932 /* Get current bssid list from device before new scan, as new scan
1933 * clears internal bssid list.
1934 */
1935 rndis_check_bssid_list(usbdev, NULL, NULL);
1936
1937 if (!request)
1938 return -EINVAL;
1939
1940 if (priv->scan_request && priv->scan_request != request)
1941 return -EBUSY;
1942
1943 priv->scan_request = request;
1944
1945 ret = rndis_start_bssid_list_scan(usbdev);
1946 if (ret == 0) {
1947 if (priv->device_type == RNDIS_BCM4320A)
1948 delay = HZ;
1949
1950 /* Wait before retrieving scan results from device */
1951 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1952 }
1953
1954 return ret;
1955 }
1956
1957 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1958 struct ndis_80211_bssid_ex *bssid)
1959 {
1960 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1961 struct ieee80211_channel *channel;
1962 s32 signal;
1963 u64 timestamp;
1964 u16 capability;
1965 u16 beacon_interval;
1966 struct ndis_80211_fixed_ies *fixed;
1967 int ie_len, bssid_len;
1968 u8 *ie;
1969
1970 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM]\n",
1971 bssid->ssid.essid, bssid->mac);
1972
1973 /* parse bssid structure */
1974 bssid_len = le32_to_cpu(bssid->length);
1975
1976 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1977 sizeof(struct ndis_80211_fixed_ies))
1978 return NULL;
1979
1980 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1981
1982 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
1983 ie_len = min(bssid_len - (int)sizeof(*bssid),
1984 (int)le32_to_cpu(bssid->ie_length));
1985 ie_len -= sizeof(struct ndis_80211_fixed_ies);
1986 if (ie_len < 0)
1987 return NULL;
1988
1989 /* extract data for cfg80211_inform_bss */
1990 channel = ieee80211_get_channel(priv->wdev.wiphy,
1991 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
1992 if (!channel)
1993 return NULL;
1994
1995 signal = level_to_qual(le32_to_cpu(bssid->rssi));
1996 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
1997 capability = le16_to_cpu(fixed->capabilities);
1998 beacon_interval = le16_to_cpu(fixed->beacon_interval);
1999
2000 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2001 timestamp, capability, beacon_interval, ie, ie_len, signal,
2002 GFP_KERNEL);
2003 }
2004
2005 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2006 bool *matched)
2007 {
2008 void *buf = NULL;
2009 struct ndis_80211_bssid_list_ex *bssid_list;
2010 struct ndis_80211_bssid_ex *bssid;
2011 int ret = -EINVAL, len, count, bssid_len;
2012 bool resized = false;
2013
2014 netdev_dbg(usbdev->net, "check_bssid_list\n");
2015
2016 len = CONTROL_BUFFER_SIZE;
2017 resize_buf:
2018 buf = kmalloc(len, GFP_KERNEL);
2019 if (!buf) {
2020 ret = -ENOMEM;
2021 goto out;
2022 }
2023
2024 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
2025 if (ret != 0)
2026 goto out;
2027
2028 if (!resized && len > CONTROL_BUFFER_SIZE) {
2029 resized = true;
2030 kfree(buf);
2031 goto resize_buf;
2032 }
2033
2034 bssid_list = buf;
2035 bssid = bssid_list->bssid;
2036 bssid_len = le32_to_cpu(bssid->length);
2037 count = le32_to_cpu(bssid_list->num_items);
2038 netdev_dbg(usbdev->net, "check_bssid_list: %d BSSIDs found (buflen: %d)\n",
2039 count, len);
2040
2041 while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
2042 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2043 matched) {
2044 if (compare_ether_addr(bssid->mac, match_bssid))
2045 *matched = true;
2046 }
2047
2048 bssid = (void *)bssid + bssid_len;
2049 bssid_len = le32_to_cpu(bssid->length);
2050 count--;
2051 }
2052
2053 out:
2054 kfree(buf);
2055 return ret;
2056 }
2057
2058 static void rndis_get_scan_results(struct work_struct *work)
2059 {
2060 struct rndis_wlan_private *priv =
2061 container_of(work, struct rndis_wlan_private, scan_work.work);
2062 struct usbnet *usbdev = priv->usbdev;
2063 int ret;
2064
2065 netdev_dbg(usbdev->net, "get_scan_results\n");
2066
2067 if (!priv->scan_request)
2068 return;
2069
2070 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2071
2072 cfg80211_scan_done(priv->scan_request, ret < 0);
2073
2074 priv->scan_request = NULL;
2075 }
2076
2077 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2078 struct cfg80211_connect_params *sme)
2079 {
2080 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2081 struct usbnet *usbdev = priv->usbdev;
2082 struct ieee80211_channel *channel = sme->channel;
2083 struct ndis_80211_ssid ssid;
2084 int pairwise = RNDIS_WLAN_ALG_NONE;
2085 int groupwise = RNDIS_WLAN_ALG_NONE;
2086 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2087 int length, i, ret, chan = -1;
2088
2089 if (channel)
2090 chan = ieee80211_frequency_to_channel(channel->center_freq);
2091
2092 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2093 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2094 pairwise |=
2095 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2096
2097 if (sme->crypto.n_ciphers_pairwise > 0 &&
2098 pairwise == RNDIS_WLAN_ALG_NONE) {
2099 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2100 return -ENOTSUPP;
2101 }
2102
2103 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2104 keymgmt |=
2105 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2106
2107 if (sme->crypto.n_akm_suites > 0 &&
2108 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2109 netdev_err(usbdev->net, "Invalid keymgmt\n");
2110 return -ENOTSUPP;
2111 }
2112
2113 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2114 sme->ssid, sme->bssid, chan,
2115 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2116 groupwise, pairwise, keymgmt);
2117
2118 if (is_associated(usbdev))
2119 disassociate(usbdev, false);
2120
2121 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2122 if (ret < 0) {
2123 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2124 ret);
2125 goto err_turn_radio_on;
2126 }
2127
2128 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2129 keymgmt);
2130 if (ret < 0) {
2131 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2132 ret);
2133 goto err_turn_radio_on;
2134 }
2135
2136 set_priv_filter(usbdev);
2137
2138 ret = set_encr_mode(usbdev, pairwise, groupwise);
2139 if (ret < 0) {
2140 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2141 ret);
2142 goto err_turn_radio_on;
2143 }
2144
2145 if (channel) {
2146 ret = set_channel(usbdev, chan);
2147 if (ret < 0) {
2148 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2149 ret);
2150 goto err_turn_radio_on;
2151 }
2152 }
2153
2154 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2155 priv->encr_tx_key_index = sme->key_idx;
2156 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2157 if (ret < 0) {
2158 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2159 ret, sme->key_len, sme->key_idx);
2160 goto err_turn_radio_on;
2161 }
2162 }
2163
2164 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2165 !is_broadcast_ether_addr(sme->bssid)) {
2166 ret = set_bssid(usbdev, sme->bssid);
2167 if (ret < 0) {
2168 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2169 ret);
2170 goto err_turn_radio_on;
2171 }
2172 } else
2173 clear_bssid(usbdev);
2174
2175 length = sme->ssid_len;
2176 if (length > NDIS_802_11_LENGTH_SSID)
2177 length = NDIS_802_11_LENGTH_SSID;
2178
2179 memset(&ssid, 0, sizeof(ssid));
2180 ssid.length = cpu_to_le32(length);
2181 memcpy(ssid.essid, sme->ssid, length);
2182
2183 /* Pause and purge rx queue, so we don't pass packets before
2184 * 'media connect'-indication.
2185 */
2186 usbnet_pause_rx(usbdev);
2187 usbnet_purge_paused_rxq(usbdev);
2188
2189 ret = set_essid(usbdev, &ssid);
2190 if (ret < 0)
2191 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2192 return ret;
2193
2194 err_turn_radio_on:
2195 disassociate(usbdev, true);
2196
2197 return ret;
2198 }
2199
2200 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2201 u16 reason_code)
2202 {
2203 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2204 struct usbnet *usbdev = priv->usbdev;
2205
2206 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2207
2208 priv->connected = false;
2209 memset(priv->bssid, 0, ETH_ALEN);
2210
2211 return deauthenticate(usbdev);
2212 }
2213
2214 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2215 struct cfg80211_ibss_params *params)
2216 {
2217 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2218 struct usbnet *usbdev = priv->usbdev;
2219 struct ieee80211_channel *channel = params->channel;
2220 struct ndis_80211_ssid ssid;
2221 enum nl80211_auth_type auth_type;
2222 int ret, alg, length, chan = -1;
2223
2224 if (channel)
2225 chan = ieee80211_frequency_to_channel(channel->center_freq);
2226
2227 /* TODO: How to handle ad-hoc encryption?
2228 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2229 * pre-shared for encryption (open/shared/wpa), is key set before
2230 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2231 */
2232 if (params->privacy) {
2233 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2234 alg = RNDIS_WLAN_ALG_WEP;
2235 } else {
2236 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2237 alg = RNDIS_WLAN_ALG_NONE;
2238 }
2239
2240 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2241 params->ssid, params->bssid, chan, params->privacy);
2242
2243 if (is_associated(usbdev))
2244 disassociate(usbdev, false);
2245
2246 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2247 if (ret < 0) {
2248 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2249 ret);
2250 goto err_turn_radio_on;
2251 }
2252
2253 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2254 if (ret < 0) {
2255 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2256 ret);
2257 goto err_turn_radio_on;
2258 }
2259
2260 set_priv_filter(usbdev);
2261
2262 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2263 if (ret < 0) {
2264 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2265 ret);
2266 goto err_turn_radio_on;
2267 }
2268
2269 if (channel) {
2270 ret = set_channel(usbdev, chan);
2271 if (ret < 0) {
2272 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2273 ret);
2274 goto err_turn_radio_on;
2275 }
2276 }
2277
2278 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2279 !is_broadcast_ether_addr(params->bssid)) {
2280 ret = set_bssid(usbdev, params->bssid);
2281 if (ret < 0) {
2282 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2283 ret);
2284 goto err_turn_radio_on;
2285 }
2286 } else
2287 clear_bssid(usbdev);
2288
2289 length = params->ssid_len;
2290 if (length > NDIS_802_11_LENGTH_SSID)
2291 length = NDIS_802_11_LENGTH_SSID;
2292
2293 memset(&ssid, 0, sizeof(ssid));
2294 ssid.length = cpu_to_le32(length);
2295 memcpy(ssid.essid, params->ssid, length);
2296
2297 /* Don't need to pause rx queue for ad-hoc. */
2298 usbnet_purge_paused_rxq(usbdev);
2299 usbnet_resume_rx(usbdev);
2300
2301 ret = set_essid(usbdev, &ssid);
2302 if (ret < 0)
2303 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2304 ret);
2305 return ret;
2306
2307 err_turn_radio_on:
2308 disassociate(usbdev, true);
2309
2310 return ret;
2311 }
2312
2313 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2314 {
2315 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2316 struct usbnet *usbdev = priv->usbdev;
2317
2318 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2319
2320 priv->connected = false;
2321 memset(priv->bssid, 0, ETH_ALEN);
2322
2323 return deauthenticate(usbdev);
2324 }
2325
2326 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
2327 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2328 {
2329 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2330 struct usbnet *usbdev = priv->usbdev;
2331
2332 return set_channel(usbdev,
2333 ieee80211_frequency_to_channel(chan->center_freq));
2334 }
2335
2336 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2337 u8 key_index, bool pairwise, const u8 *mac_addr,
2338 struct key_params *params)
2339 {
2340 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2341 struct usbnet *usbdev = priv->usbdev;
2342 __le32 flags;
2343
2344 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2345 __func__, key_index, mac_addr, params->cipher);
2346
2347 switch (params->cipher) {
2348 case WLAN_CIPHER_SUITE_WEP40:
2349 case WLAN_CIPHER_SUITE_WEP104:
2350 return add_wep_key(usbdev, params->key, params->key_len,
2351 key_index);
2352 case WLAN_CIPHER_SUITE_TKIP:
2353 case WLAN_CIPHER_SUITE_CCMP:
2354 flags = 0;
2355
2356 if (params->seq && params->seq_len > 0)
2357 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2358 if (mac_addr)
2359 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2360 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2361
2362 return add_wpa_key(usbdev, params->key, params->key_len,
2363 key_index, mac_addr, params->seq,
2364 params->seq_len, params->cipher, flags);
2365 default:
2366 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2367 __func__, params->cipher);
2368 return -ENOTSUPP;
2369 }
2370 }
2371
2372 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2373 u8 key_index, bool pairwise, const u8 *mac_addr)
2374 {
2375 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2376 struct usbnet *usbdev = priv->usbdev;
2377
2378 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2379
2380 return remove_key(usbdev, key_index, mac_addr);
2381 }
2382
2383 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2384 u8 key_index, bool unicast, bool multicast)
2385 {
2386 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2387 struct usbnet *usbdev = priv->usbdev;
2388 struct rndis_wlan_encr_key key;
2389
2390 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2391
2392 priv->encr_tx_key_index = key_index;
2393
2394 key = priv->encr_keys[key_index];
2395
2396 return add_wep_key(usbdev, key.material, key.len, key_index);
2397 }
2398
2399 static void rndis_fill_station_info(struct usbnet *usbdev,
2400 struct station_info *sinfo)
2401 {
2402 __le32 linkspeed, rssi;
2403 int ret, len;
2404
2405 memset(sinfo, 0, sizeof(*sinfo));
2406
2407 len = sizeof(linkspeed);
2408 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2409 if (ret == 0) {
2410 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2411 sinfo->filled |= STATION_INFO_TX_BITRATE;
2412 }
2413
2414 len = sizeof(rssi);
2415 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2416 if (ret == 0) {
2417 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2418 sinfo->filled |= STATION_INFO_SIGNAL;
2419 }
2420 }
2421
2422 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2423 u8 *mac, struct station_info *sinfo)
2424 {
2425 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2426 struct usbnet *usbdev = priv->usbdev;
2427
2428 if (compare_ether_addr(priv->bssid, mac))
2429 return -ENOENT;
2430
2431 rndis_fill_station_info(usbdev, sinfo);
2432
2433 return 0;
2434 }
2435
2436 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2437 int idx, u8 *mac, struct station_info *sinfo)
2438 {
2439 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2440 struct usbnet *usbdev = priv->usbdev;
2441
2442 if (idx != 0)
2443 return -ENOENT;
2444
2445 memcpy(mac, priv->bssid, ETH_ALEN);
2446
2447 rndis_fill_station_info(usbdev, sinfo);
2448
2449 return 0;
2450 }
2451
2452 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2453 struct cfg80211_pmksa *pmksa)
2454 {
2455 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2456 struct usbnet *usbdev = priv->usbdev;
2457 struct ndis_80211_pmkid *pmkids;
2458 u32 *tmp = (u32 *)pmksa->pmkid;
2459
2460 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2461 pmksa->bssid,
2462 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2463 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2464
2465 pmkids = get_device_pmkids(usbdev);
2466 if (IS_ERR(pmkids)) {
2467 /* couldn't read PMKID cache from device */
2468 return PTR_ERR(pmkids);
2469 }
2470
2471 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2472 if (IS_ERR(pmkids)) {
2473 /* not found, list full, etc */
2474 return PTR_ERR(pmkids);
2475 }
2476
2477 return set_device_pmkids(usbdev, pmkids);
2478 }
2479
2480 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2481 struct cfg80211_pmksa *pmksa)
2482 {
2483 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2484 struct usbnet *usbdev = priv->usbdev;
2485 struct ndis_80211_pmkid *pmkids;
2486 u32 *tmp = (u32 *)pmksa->pmkid;
2487
2488 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2489 pmksa->bssid,
2490 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2491 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2492
2493 pmkids = get_device_pmkids(usbdev);
2494 if (IS_ERR(pmkids)) {
2495 /* Couldn't read PMKID cache from device */
2496 return PTR_ERR(pmkids);
2497 }
2498
2499 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2500 if (IS_ERR(pmkids)) {
2501 /* not found, etc */
2502 return PTR_ERR(pmkids);
2503 }
2504
2505 return set_device_pmkids(usbdev, pmkids);
2506 }
2507
2508 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2509 {
2510 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2511 struct usbnet *usbdev = priv->usbdev;
2512 struct ndis_80211_pmkid pmkid;
2513
2514 netdev_dbg(usbdev->net, "%s()\n", __func__);
2515
2516 memset(&pmkid, 0, sizeof(pmkid));
2517
2518 pmkid.length = cpu_to_le32(sizeof(pmkid));
2519 pmkid.bssid_info_count = cpu_to_le32(0);
2520
2521 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2522 }
2523
2524 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2525 struct ndis_80211_assoc_info *info)
2526 {
2527 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2528 struct ieee80211_channel *channel;
2529 struct ndis_80211_conf config;
2530 struct ndis_80211_ssid ssid;
2531 s32 signal;
2532 u64 timestamp;
2533 u16 capability;
2534 u16 beacon_interval;
2535 __le32 rssi;
2536 u8 ie_buf[34];
2537 int len, ret, ie_len;
2538
2539 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2540 len = sizeof(rssi);
2541 rssi = 0;
2542 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2543 signal = level_to_qual(le32_to_cpu(rssi));
2544
2545 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2546 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2547 level_to_qual(le32_to_cpu(rssi)));
2548
2549 /* Get AP capabilities */
2550 if (info) {
2551 capability = le16_to_cpu(info->resp_ie.capa);
2552 } else {
2553 /* Set atleast ESS/IBSS capability */
2554 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2555 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2556 }
2557
2558 /* Get channel and beacon interval */
2559 len = sizeof(config);
2560 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2561 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2562 __func__, ret);
2563 if (ret >= 0) {
2564 beacon_interval = le16_to_cpu(config.beacon_period);
2565 channel = ieee80211_get_channel(priv->wdev.wiphy,
2566 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2567 if (!channel) {
2568 netdev_warn(usbdev->net, "%s(): could not get channel."
2569 "\n", __func__);
2570 return;
2571 }
2572 } else {
2573 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2574 __func__);
2575 return;
2576 }
2577
2578 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2579 len = sizeof(ssid);
2580 memset(&ssid, 0, sizeof(ssid));
2581 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2582 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2583 "'%.32s'\n", __func__, ret,
2584 le32_to_cpu(ssid.length), ssid.essid);
2585
2586 if (le32_to_cpu(ssid.length) > 32)
2587 ssid.length = cpu_to_le32(32);
2588
2589 ie_buf[0] = WLAN_EID_SSID;
2590 ie_buf[1] = le32_to_cpu(ssid.length);
2591 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2592
2593 ie_len = le32_to_cpu(ssid.length) + 2;
2594
2595 /* no tsf */
2596 timestamp = 0;
2597
2598 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2599 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2600 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2601 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2602 ssid.essid, signal);
2603
2604 cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2605 timestamp, capability, beacon_interval, ie_buf, ie_len,
2606 signal, GFP_KERNEL);
2607 }
2608
2609 /*
2610 * workers, indication handlers, device poller
2611 */
2612 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2613 {
2614 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2615 struct ndis_80211_assoc_info *info = NULL;
2616 u8 bssid[ETH_ALEN];
2617 int resp_ie_len, req_ie_len;
2618 u8 *req_ie, *resp_ie;
2619 int ret, offset;
2620 bool roamed = false;
2621 bool match_bss;
2622
2623 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2624 /* received media connect indication while connected, either
2625 * device reassociated with same AP or roamed to new. */
2626 roamed = true;
2627 }
2628
2629 req_ie_len = 0;
2630 resp_ie_len = 0;
2631 req_ie = NULL;
2632 resp_ie = NULL;
2633
2634 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2635 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2636 if (!info) {
2637 /* No memory? Try resume work later */
2638 set_bit(WORK_LINK_UP, &priv->work_pending);
2639 queue_work(priv->workqueue, &priv->work);
2640 return;
2641 }
2642
2643 /* Get association info IEs from device. */
2644 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2645 if (!ret) {
2646 req_ie_len = le32_to_cpu(info->req_ie_length);
2647 if (req_ie_len > 0) {
2648 offset = le32_to_cpu(info->offset_req_ies);
2649
2650 if (offset > CONTROL_BUFFER_SIZE)
2651 offset = CONTROL_BUFFER_SIZE;
2652
2653 req_ie = (u8 *)info + offset;
2654
2655 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2656 req_ie_len =
2657 CONTROL_BUFFER_SIZE - offset;
2658 }
2659
2660 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2661 if (resp_ie_len > 0) {
2662 offset = le32_to_cpu(info->offset_resp_ies);
2663
2664 if (offset > CONTROL_BUFFER_SIZE)
2665 offset = CONTROL_BUFFER_SIZE;
2666
2667 resp_ie = (u8 *)info + offset;
2668
2669 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2670 resp_ie_len =
2671 CONTROL_BUFFER_SIZE - offset;
2672 }
2673 } else {
2674 /* Since rndis_wlan_craft_connected_bss() might use info
2675 * later and expects info to contain valid data if
2676 * non-null, free info and set NULL here.
2677 */
2678 kfree(info);
2679 info = NULL;
2680 }
2681 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2682 return;
2683
2684 ret = get_bssid(usbdev, bssid);
2685 if (ret < 0)
2686 memset(bssid, 0, sizeof(bssid));
2687
2688 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2689 bssid, roamed ? " roamed" : "");
2690
2691 /* Internal bss list in device should contain at least the currently
2692 * connected bss and we can get it to cfg80211 with
2693 * rndis_check_bssid_list().
2694 *
2695 * NDIS spec says: "If the device is associated, but the associated
2696 * BSSID is not in its BSSID scan list, then the driver must add an
2697 * entry for the BSSID at the end of the data that it returns in
2698 * response to query of OID_802_11_BSSID_LIST."
2699 *
2700 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2701 */
2702 match_bss = false;
2703 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2704
2705 if (!is_zero_ether_addr(bssid) && !match_bss) {
2706 /* Couldn't get bss from device, we need to manually craft bss
2707 * for cfg80211.
2708 */
2709 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2710 }
2711
2712 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2713 if (!roamed)
2714 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2715 req_ie_len, resp_ie,
2716 resp_ie_len, 0, GFP_KERNEL);
2717 else
2718 cfg80211_roamed(usbdev->net, bssid, req_ie, req_ie_len,
2719 resp_ie, resp_ie_len, GFP_KERNEL);
2720 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2721 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2722
2723 if (info != NULL)
2724 kfree(info);
2725
2726 priv->connected = true;
2727 memcpy(priv->bssid, bssid, ETH_ALEN);
2728
2729 usbnet_resume_rx(usbdev);
2730 netif_carrier_on(usbdev->net);
2731 }
2732
2733 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2734 {
2735 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2736
2737 if (priv->connected) {
2738 priv->connected = false;
2739 memset(priv->bssid, 0, ETH_ALEN);
2740
2741 deauthenticate(usbdev);
2742
2743 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2744 }
2745
2746 netif_carrier_off(usbdev->net);
2747 }
2748
2749 static void rndis_wlan_worker(struct work_struct *work)
2750 {
2751 struct rndis_wlan_private *priv =
2752 container_of(work, struct rndis_wlan_private, work);
2753 struct usbnet *usbdev = priv->usbdev;
2754
2755 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2756 rndis_wlan_do_link_up_work(usbdev);
2757
2758 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2759 rndis_wlan_do_link_down_work(usbdev);
2760
2761 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2762 set_multicast_list(usbdev);
2763 }
2764
2765 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2766 {
2767 struct usbnet *usbdev = netdev_priv(dev);
2768 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2769
2770 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2771 return;
2772
2773 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2774 queue_work(priv->workqueue, &priv->work);
2775 }
2776
2777 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2778 struct ndis_80211_status_indication *indication,
2779 int len)
2780 {
2781 u8 *buf;
2782 const char *type;
2783 int flags, buflen, key_id;
2784 bool pairwise_error, group_error;
2785 struct ndis_80211_auth_request *auth_req;
2786 enum nl80211_key_type key_type;
2787
2788 /* must have at least one array entry */
2789 if (len < offsetof(struct ndis_80211_status_indication, u) +
2790 sizeof(struct ndis_80211_auth_request)) {
2791 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2792 len);
2793 return;
2794 }
2795
2796 buf = (void *)&indication->u.auth_request[0];
2797 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2798
2799 while (buflen >= sizeof(*auth_req)) {
2800 auth_req = (void *)buf;
2801 type = "unknown";
2802 flags = le32_to_cpu(auth_req->flags);
2803 pairwise_error = false;
2804 group_error = false;
2805
2806 if (flags & 0x1)
2807 type = "reauth request";
2808 if (flags & 0x2)
2809 type = "key update request";
2810 if (flags & 0x6) {
2811 pairwise_error = true;
2812 type = "pairwise_error";
2813 }
2814 if (flags & 0xe) {
2815 group_error = true;
2816 type = "group_error";
2817 }
2818
2819 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2820 type, le32_to_cpu(auth_req->flags));
2821
2822 if (pairwise_error) {
2823 key_type = NL80211_KEYTYPE_PAIRWISE;
2824 key_id = -1;
2825
2826 cfg80211_michael_mic_failure(usbdev->net,
2827 auth_req->bssid,
2828 key_type, key_id, NULL,
2829 GFP_KERNEL);
2830 }
2831
2832 if (group_error) {
2833 key_type = NL80211_KEYTYPE_GROUP;
2834 key_id = -1;
2835
2836 cfg80211_michael_mic_failure(usbdev->net,
2837 auth_req->bssid,
2838 key_type, key_id, NULL,
2839 GFP_KERNEL);
2840 }
2841
2842 buflen -= le32_to_cpu(auth_req->length);
2843 buf += le32_to_cpu(auth_req->length);
2844 }
2845 }
2846
2847 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2848 struct ndis_80211_status_indication *indication,
2849 int len)
2850 {
2851 struct ndis_80211_pmkid_cand_list *cand_list;
2852 int list_len, expected_len, i;
2853
2854 if (len < offsetof(struct ndis_80211_status_indication, u) +
2855 sizeof(struct ndis_80211_pmkid_cand_list)) {
2856 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2857 len);
2858 return;
2859 }
2860
2861 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2862 sizeof(struct ndis_80211_pmkid_candidate);
2863 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2864 offsetof(struct ndis_80211_status_indication, u);
2865
2866 if (len < expected_len) {
2867 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2868 len, expected_len);
2869 return;
2870 }
2871
2872 cand_list = &indication->u.cand_list;
2873
2874 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2875 le32_to_cpu(cand_list->version),
2876 le32_to_cpu(cand_list->num_candidates));
2877
2878 if (le32_to_cpu(cand_list->version) != 1)
2879 return;
2880
2881 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2882 struct ndis_80211_pmkid_candidate *cand =
2883 &cand_list->candidate_list[i];
2884
2885 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
2886 i, le32_to_cpu(cand->flags), cand->bssid);
2887
2888 #if 0
2889 struct iw_pmkid_cand pcand;
2890 union iwreq_data wrqu;
2891
2892 memset(&pcand, 0, sizeof(pcand));
2893 if (le32_to_cpu(cand->flags) & 0x01)
2894 pcand.flags |= IW_PMKID_CAND_PREAUTH;
2895 pcand.index = i;
2896 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
2897
2898 memset(&wrqu, 0, sizeof(wrqu));
2899 wrqu.data.length = sizeof(pcand);
2900 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
2901 (u8 *)&pcand);
2902 #endif
2903 }
2904 }
2905
2906 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
2907 struct rndis_indicate *msg, int buflen)
2908 {
2909 struct ndis_80211_status_indication *indication;
2910 int len, offset;
2911
2912 offset = offsetof(struct rndis_indicate, status) +
2913 le32_to_cpu(msg->offset);
2914 len = le32_to_cpu(msg->length);
2915
2916 if (len < 8) {
2917 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
2918 len);
2919 return;
2920 }
2921
2922 if (offset + len > buflen) {
2923 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
2924 offset + len, buflen);
2925 return;
2926 }
2927
2928 indication = (void *)((u8 *)msg + offset);
2929
2930 switch (le32_to_cpu(indication->status_type)) {
2931 case NDIS_80211_STATUSTYPE_RADIOSTATE:
2932 netdev_info(usbdev->net, "radio state indication: %i\n",
2933 le32_to_cpu(indication->u.radio_status));
2934 return;
2935
2936 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
2937 netdev_info(usbdev->net, "media stream mode indication: %i\n",
2938 le32_to_cpu(indication->u.media_stream_mode));
2939 return;
2940
2941 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
2942 rndis_wlan_auth_indication(usbdev, indication, len);
2943 return;
2944
2945 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
2946 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
2947 return;
2948
2949 default:
2950 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
2951 le32_to_cpu(indication->status_type));
2952 }
2953 }
2954
2955 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
2956 {
2957 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2958 struct rndis_indicate *msg = ind;
2959
2960 switch (msg->status) {
2961 case RNDIS_STATUS_MEDIA_CONNECT:
2962 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
2963 /* OID_802_11_ADD_KEY causes sometimes extra
2964 * "media connect" indications which confuses driver
2965 * and userspace to think that device is
2966 * roaming/reassociating when it isn't.
2967 */
2968 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
2969 return;
2970 }
2971
2972 usbnet_pause_rx(usbdev);
2973
2974 netdev_info(usbdev->net, "media connect\n");
2975
2976 /* queue work to avoid recursive calls into rndis_command */
2977 set_bit(WORK_LINK_UP, &priv->work_pending);
2978 queue_work(priv->workqueue, &priv->work);
2979 break;
2980
2981 case RNDIS_STATUS_MEDIA_DISCONNECT:
2982 netdev_info(usbdev->net, "media disconnect\n");
2983
2984 /* queue work to avoid recursive calls into rndis_command */
2985 set_bit(WORK_LINK_DOWN, &priv->work_pending);
2986 queue_work(priv->workqueue, &priv->work);
2987 break;
2988
2989 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
2990 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
2991 break;
2992
2993 default:
2994 netdev_info(usbdev->net, "indication: 0x%08x\n",
2995 le32_to_cpu(msg->status));
2996 break;
2997 }
2998 }
2999
3000 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3001 {
3002 struct {
3003 __le32 num_items;
3004 __le32 items[8];
3005 } networks_supported;
3006 struct ndis_80211_capability *caps;
3007 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3008 int len, retval, i, n;
3009 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3010
3011 /* determine supported modes */
3012 len = sizeof(networks_supported);
3013 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
3014 &networks_supported, &len);
3015 if (retval >= 0) {
3016 n = le32_to_cpu(networks_supported.num_items);
3017 if (n > 8)
3018 n = 8;
3019 for (i = 0; i < n; i++) {
3020 switch (le32_to_cpu(networks_supported.items[i])) {
3021 case NDIS_80211_TYPE_FREQ_HOP:
3022 case NDIS_80211_TYPE_DIRECT_SEQ:
3023 priv->caps |= CAP_MODE_80211B;
3024 break;
3025 case NDIS_80211_TYPE_OFDM_A:
3026 priv->caps |= CAP_MODE_80211A;
3027 break;
3028 case NDIS_80211_TYPE_OFDM_G:
3029 priv->caps |= CAP_MODE_80211G;
3030 break;
3031 }
3032 }
3033 }
3034
3035 /* get device 802.11 capabilities, number of PMKIDs */
3036 caps = (struct ndis_80211_capability *)caps_buf;
3037 len = sizeof(caps_buf);
3038 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3039 if (retval >= 0) {
3040 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3041 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3042 le32_to_cpu(caps->length),
3043 le32_to_cpu(caps->version),
3044 le32_to_cpu(caps->num_pmkids),
3045 le32_to_cpu(caps->num_auth_encr_pair));
3046 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3047 } else
3048 wiphy->max_num_pmkids = 0;
3049
3050 return retval;
3051 }
3052
3053 #define DEVICE_POLLER_JIFFIES (HZ)
3054 static void rndis_device_poller(struct work_struct *work)
3055 {
3056 struct rndis_wlan_private *priv =
3057 container_of(work, struct rndis_wlan_private,
3058 dev_poller_work.work);
3059 struct usbnet *usbdev = priv->usbdev;
3060 __le32 rssi, tmp;
3061 int len, ret, j;
3062 int update_jiffies = DEVICE_POLLER_JIFFIES;
3063 void *buf;
3064
3065 /* Only check/do workaround when connected. Calling is_associated()
3066 * also polls device with rndis_command() and catches for media link
3067 * indications.
3068 */
3069 if (!is_associated(usbdev)) {
3070 /* Workaround bad scanning in BCM4320a devices with active
3071 * background scanning when not associated.
3072 */
3073 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3074 !priv->scan_request) {
3075 /* Get previous scan results */
3076 rndis_check_bssid_list(usbdev, NULL, NULL);
3077
3078 /* Initiate new scan */
3079 rndis_start_bssid_list_scan(usbdev);
3080 }
3081
3082 goto end;
3083 }
3084
3085 len = sizeof(rssi);
3086 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
3087 if (ret == 0)
3088 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3089
3090 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3091 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3092
3093 /* Workaround transfer stalls on poor quality links.
3094 * TODO: find right way to fix these stalls (as stalls do not happen
3095 * with ndiswrapper/windows driver). */
3096 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3097 /* Decrease stats worker interval to catch stalls.
3098 * faster. Faster than 400-500ms causes packet loss,
3099 * Slower doesn't catch stalls fast enough.
3100 */
3101 j = msecs_to_jiffies(priv->param_workaround_interval);
3102 if (j > DEVICE_POLLER_JIFFIES)
3103 j = DEVICE_POLLER_JIFFIES;
3104 else if (j <= 0)
3105 j = 1;
3106 update_jiffies = j;
3107
3108 /* Send scan OID. Use of both OIDs is required to get device
3109 * working.
3110 */
3111 tmp = cpu_to_le32(1);
3112 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3113 sizeof(tmp));
3114
3115 len = CONTROL_BUFFER_SIZE;
3116 buf = kmalloc(len, GFP_KERNEL);
3117 if (!buf)
3118 goto end;
3119
3120 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3121 kfree(buf);
3122 }
3123
3124 end:
3125 if (update_jiffies >= HZ)
3126 update_jiffies = round_jiffies_relative(update_jiffies);
3127 else {
3128 j = round_jiffies_relative(update_jiffies);
3129 if (abs(j - update_jiffies) <= 10)
3130 update_jiffies = j;
3131 }
3132
3133 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3134 update_jiffies);
3135 }
3136
3137 /*
3138 * driver/device initialization
3139 */
3140 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3141 {
3142 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3143
3144 priv->device_type = device_type;
3145
3146 priv->param_country[0] = modparam_country[0];
3147 priv->param_country[1] = modparam_country[1];
3148 priv->param_country[2] = 0;
3149 priv->param_frameburst = modparam_frameburst;
3150 priv->param_afterburner = modparam_afterburner;
3151 priv->param_power_save = modparam_power_save;
3152 priv->param_power_output = modparam_power_output;
3153 priv->param_roamtrigger = modparam_roamtrigger;
3154 priv->param_roamdelta = modparam_roamdelta;
3155
3156 priv->param_country[0] = toupper(priv->param_country[0]);
3157 priv->param_country[1] = toupper(priv->param_country[1]);
3158 /* doesn't support EU as country code, use FI instead */
3159 if (!strcmp(priv->param_country, "EU"))
3160 strcpy(priv->param_country, "FI");
3161
3162 if (priv->param_power_save < 0)
3163 priv->param_power_save = 0;
3164 else if (priv->param_power_save > 2)
3165 priv->param_power_save = 2;
3166
3167 if (priv->param_power_output < 0)
3168 priv->param_power_output = 0;
3169 else if (priv->param_power_output > 3)
3170 priv->param_power_output = 3;
3171
3172 if (priv->param_roamtrigger < -80)
3173 priv->param_roamtrigger = -80;
3174 else if (priv->param_roamtrigger > -60)
3175 priv->param_roamtrigger = -60;
3176
3177 if (priv->param_roamdelta < 0)
3178 priv->param_roamdelta = 0;
3179 else if (priv->param_roamdelta > 2)
3180 priv->param_roamdelta = 2;
3181
3182 if (modparam_workaround_interval < 0)
3183 priv->param_workaround_interval = 500;
3184 else
3185 priv->param_workaround_interval = modparam_workaround_interval;
3186 }
3187
3188 static int unknown_early_init(struct usbnet *usbdev)
3189 {
3190 /* copy module parameters for unknown so that iwconfig reports txpower
3191 * and workaround parameter is copied to private structure correctly.
3192 */
3193 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3194
3195 /* This is unknown device, so do not try set configuration parameters.
3196 */
3197
3198 return 0;
3199 }
3200
3201 static int bcm4320a_early_init(struct usbnet *usbdev)
3202 {
3203 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3204 * and workaround parameter is copied to private structure correctly.
3205 */
3206 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3207
3208 /* bcm4320a doesn't handle configuration parameters well. Try
3209 * set any and you get partially zeroed mac and broken device.
3210 */
3211
3212 return 0;
3213 }
3214
3215 static int bcm4320b_early_init(struct usbnet *usbdev)
3216 {
3217 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3218 char buf[8];
3219
3220 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3221
3222 /* Early initialization settings, setting these won't have effect
3223 * if called after generic_rndis_bind().
3224 */
3225
3226 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3227 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3228 priv->param_frameburst ? "1" : "0");
3229 rndis_set_config_parameter_str(usbdev, "Afterburner",
3230 priv->param_afterburner ? "1" : "0");
3231 sprintf(buf, "%d", priv->param_power_save);
3232 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3233 sprintf(buf, "%d", priv->param_power_output);
3234 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3235 sprintf(buf, "%d", priv->param_roamtrigger);
3236 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3237 sprintf(buf, "%d", priv->param_roamdelta);
3238 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3239
3240 return 0;
3241 }
3242
3243 /* same as rndis_netdev_ops but with local multicast handler */
3244 static const struct net_device_ops rndis_wlan_netdev_ops = {
3245 .ndo_open = usbnet_open,
3246 .ndo_stop = usbnet_stop,
3247 .ndo_start_xmit = usbnet_start_xmit,
3248 .ndo_tx_timeout = usbnet_tx_timeout,
3249 .ndo_set_mac_address = eth_mac_addr,
3250 .ndo_validate_addr = eth_validate_addr,
3251 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
3252 };
3253
3254 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3255 {
3256 struct wiphy *wiphy;
3257 struct rndis_wlan_private *priv;
3258 int retval, len;
3259 __le32 tmp;
3260
3261 /* allocate wiphy and rndis private data
3262 * NOTE: We only support a single virtual interface, so wiphy
3263 * and wireless_dev are somewhat synonymous for this device.
3264 */
3265 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3266 if (!wiphy)
3267 return -ENOMEM;
3268
3269 priv = wiphy_priv(wiphy);
3270 usbdev->net->ieee80211_ptr = &priv->wdev;
3271 priv->wdev.wiphy = wiphy;
3272 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3273
3274 /* These have to be initialized before calling generic_rndis_bind().
3275 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3276 */
3277 usbdev->driver_priv = priv;
3278 priv->usbdev = usbdev;
3279
3280 mutex_init(&priv->command_lock);
3281
3282 /* because rndis_command() sleeps we need to use workqueue */
3283 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3284 INIT_WORK(&priv->work, rndis_wlan_worker);
3285 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3286 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3287
3288 /* try bind rndis_host */
3289 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3290 if (retval < 0)
3291 goto fail;
3292
3293 /* generic_rndis_bind set packet filter to multicast_all+
3294 * promisc mode which doesn't work well for our devices (device
3295 * picks up rssi to closest station instead of to access point).
3296 *
3297 * rndis_host wants to avoid all OID as much as possible
3298 * so do promisc/multicast handling in rndis_wlan.
3299 */
3300 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3301
3302 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3303 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3304 sizeof(tmp));
3305
3306 len = sizeof(tmp);
3307 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3308 &len);
3309 priv->multicast_size = le32_to_cpu(tmp);
3310 if (retval < 0 || priv->multicast_size < 0)
3311 priv->multicast_size = 0;
3312 if (priv->multicast_size > 0)
3313 usbdev->net->flags |= IFF_MULTICAST;
3314 else
3315 usbdev->net->flags &= ~IFF_MULTICAST;
3316
3317 /* fill-out wiphy structure and register w/ cfg80211 */
3318 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3319 wiphy->privid = rndis_wiphy_privid;
3320 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3321 | BIT(NL80211_IFTYPE_ADHOC);
3322 wiphy->max_scan_ssids = 1;
3323
3324 /* TODO: fill-out band/encr information based on priv->caps */
3325 rndis_wlan_get_caps(usbdev, wiphy);
3326
3327 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3328 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3329 priv->band.channels = priv->channels;
3330 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3331 priv->band.bitrates = priv->rates;
3332 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3333 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3334 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3335
3336 memcpy(priv->cipher_suites, rndis_cipher_suites,
3337 sizeof(rndis_cipher_suites));
3338 wiphy->cipher_suites = priv->cipher_suites;
3339 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3340
3341 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3342
3343 if (wiphy_register(wiphy)) {
3344 retval = -ENODEV;
3345 goto fail;
3346 }
3347
3348 set_default_iw_params(usbdev);
3349
3350 /* set default rts/frag */
3351 rndis_set_wiphy_params(wiphy,
3352 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3353
3354 /* turn radio on */
3355 priv->radio_on = true;
3356 disassociate(usbdev, true);
3357 netif_carrier_off(usbdev->net);
3358
3359 return 0;
3360
3361 fail:
3362 cancel_delayed_work_sync(&priv->dev_poller_work);
3363 cancel_delayed_work_sync(&priv->scan_work);
3364 cancel_work_sync(&priv->work);
3365 flush_workqueue(priv->workqueue);
3366 destroy_workqueue(priv->workqueue);
3367
3368 wiphy_free(wiphy);
3369 return retval;
3370 }
3371
3372 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3373 {
3374 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3375
3376 /* turn radio off */
3377 disassociate(usbdev, false);
3378
3379 cancel_delayed_work_sync(&priv->dev_poller_work);
3380 cancel_delayed_work_sync(&priv->scan_work);
3381 cancel_work_sync(&priv->work);
3382 flush_workqueue(priv->workqueue);
3383 destroy_workqueue(priv->workqueue);
3384
3385 rndis_unbind(usbdev, intf);
3386
3387 wiphy_unregister(priv->wdev.wiphy);
3388 wiphy_free(priv->wdev.wiphy);
3389 }
3390
3391 static int rndis_wlan_reset(struct usbnet *usbdev)
3392 {
3393 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3394 int retval;
3395
3396 netdev_dbg(usbdev->net, "%s()\n", __func__);
3397
3398 retval = rndis_reset(usbdev);
3399 if (retval)
3400 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3401
3402 /* rndis_reset cleared multicast list, so restore here.
3403 (set_multicast_list() also turns on current packet filter) */
3404 set_multicast_list(usbdev);
3405
3406 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3407 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3408
3409 return deauthenticate(usbdev);
3410 }
3411
3412 static int rndis_wlan_stop(struct usbnet *usbdev)
3413 {
3414 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3415 int retval;
3416 __le32 filter;
3417
3418 netdev_dbg(usbdev->net, "%s()\n", __func__);
3419
3420 retval = disassociate(usbdev, false);
3421
3422 priv->work_pending = 0;
3423 cancel_delayed_work_sync(&priv->dev_poller_work);
3424 cancel_delayed_work_sync(&priv->scan_work);
3425 cancel_work_sync(&priv->work);
3426 flush_workqueue(priv->workqueue);
3427
3428 if (priv->scan_request) {
3429 cfg80211_scan_done(priv->scan_request, true);
3430 priv->scan_request = NULL;
3431 }
3432
3433 /* Set current packet filter zero to block receiving data packets from
3434 device. */
3435 filter = 0;
3436 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3437 sizeof(filter));
3438
3439 return retval;
3440 }
3441
3442 static const struct driver_info bcm4320b_info = {
3443 .description = "Wireless RNDIS device, BCM4320b based",
3444 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3445 FLAG_AVOID_UNLINK_URBS,
3446 .bind = rndis_wlan_bind,
3447 .unbind = rndis_wlan_unbind,
3448 .status = rndis_status,
3449 .rx_fixup = rndis_rx_fixup,
3450 .tx_fixup = rndis_tx_fixup,
3451 .reset = rndis_wlan_reset,
3452 .stop = rndis_wlan_stop,
3453 .early_init = bcm4320b_early_init,
3454 .indication = rndis_wlan_indication,
3455 };
3456
3457 static const struct driver_info bcm4320a_info = {
3458 .description = "Wireless RNDIS device, BCM4320a based",
3459 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3460 FLAG_AVOID_UNLINK_URBS,
3461 .bind = rndis_wlan_bind,
3462 .unbind = rndis_wlan_unbind,
3463 .status = rndis_status,
3464 .rx_fixup = rndis_rx_fixup,
3465 .tx_fixup = rndis_tx_fixup,
3466 .reset = rndis_wlan_reset,
3467 .stop = rndis_wlan_stop,
3468 .early_init = bcm4320a_early_init,
3469 .indication = rndis_wlan_indication,
3470 };
3471
3472 static const struct driver_info rndis_wlan_info = {
3473 .description = "Wireless RNDIS device",
3474 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3475 FLAG_AVOID_UNLINK_URBS,
3476 .bind = rndis_wlan_bind,
3477 .unbind = rndis_wlan_unbind,
3478 .status = rndis_status,
3479 .rx_fixup = rndis_rx_fixup,
3480 .tx_fixup = rndis_tx_fixup,
3481 .reset = rndis_wlan_reset,
3482 .stop = rndis_wlan_stop,
3483 .early_init = unknown_early_init,
3484 .indication = rndis_wlan_indication,
3485 };
3486
3487 /*-------------------------------------------------------------------------*/
3488
3489 static const struct usb_device_id products [] = {
3490 #define RNDIS_MASTER_INTERFACE \
3491 .bInterfaceClass = USB_CLASS_COMM, \
3492 .bInterfaceSubClass = 2 /* ACM */, \
3493 .bInterfaceProtocol = 0x0ff
3494
3495 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3496 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3497 */
3498 {
3499 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3500 | USB_DEVICE_ID_MATCH_DEVICE,
3501 .idVendor = 0x0411,
3502 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3503 RNDIS_MASTER_INTERFACE,
3504 .driver_info = (unsigned long) &bcm4320b_info,
3505 }, {
3506 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3507 | USB_DEVICE_ID_MATCH_DEVICE,
3508 .idVendor = 0x0baf,
3509 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3510 RNDIS_MASTER_INTERFACE,
3511 .driver_info = (unsigned long) &bcm4320b_info,
3512 }, {
3513 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3514 | USB_DEVICE_ID_MATCH_DEVICE,
3515 .idVendor = 0x050d,
3516 .idProduct = 0x011b, /* Belkin F5D7051 */
3517 RNDIS_MASTER_INTERFACE,
3518 .driver_info = (unsigned long) &bcm4320b_info,
3519 }, {
3520 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3521 | USB_DEVICE_ID_MATCH_DEVICE,
3522 .idVendor = 0x1799, /* Belkin has two vendor ids */
3523 .idProduct = 0x011b, /* Belkin F5D7051 */
3524 RNDIS_MASTER_INTERFACE,
3525 .driver_info = (unsigned long) &bcm4320b_info,
3526 }, {
3527 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3528 | USB_DEVICE_ID_MATCH_DEVICE,
3529 .idVendor = 0x13b1,
3530 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3531 RNDIS_MASTER_INTERFACE,
3532 .driver_info = (unsigned long) &bcm4320b_info,
3533 }, {
3534 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3535 | USB_DEVICE_ID_MATCH_DEVICE,
3536 .idVendor = 0x13b1,
3537 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3538 RNDIS_MASTER_INTERFACE,
3539 .driver_info = (unsigned long) &bcm4320b_info,
3540 }, {
3541 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3542 | USB_DEVICE_ID_MATCH_DEVICE,
3543 .idVendor = 0x0b05,
3544 .idProduct = 0x1717, /* Asus WL169gE */
3545 RNDIS_MASTER_INTERFACE,
3546 .driver_info = (unsigned long) &bcm4320b_info,
3547 }, {
3548 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3549 | USB_DEVICE_ID_MATCH_DEVICE,
3550 .idVendor = 0x0a5c,
3551 .idProduct = 0xd11b, /* Eminent EM4045 */
3552 RNDIS_MASTER_INTERFACE,
3553 .driver_info = (unsigned long) &bcm4320b_info,
3554 }, {
3555 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3556 | USB_DEVICE_ID_MATCH_DEVICE,
3557 .idVendor = 0x1690,
3558 .idProduct = 0x0715, /* BT Voyager 1055 */
3559 RNDIS_MASTER_INTERFACE,
3560 .driver_info = (unsigned long) &bcm4320b_info,
3561 },
3562 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3563 * parameters available, hardware probably contain older firmware version with
3564 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3565 */
3566 {
3567 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3568 | USB_DEVICE_ID_MATCH_DEVICE,
3569 .idVendor = 0x13b1,
3570 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3571 RNDIS_MASTER_INTERFACE,
3572 .driver_info = (unsigned long) &bcm4320a_info,
3573 }, {
3574 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3575 | USB_DEVICE_ID_MATCH_DEVICE,
3576 .idVendor = 0x0baf,
3577 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3578 RNDIS_MASTER_INTERFACE,
3579 .driver_info = (unsigned long) &bcm4320a_info,
3580 }, {
3581 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3582 | USB_DEVICE_ID_MATCH_DEVICE,
3583 .idVendor = 0x0411,
3584 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3585 RNDIS_MASTER_INTERFACE,
3586 .driver_info = (unsigned long) &bcm4320a_info,
3587 },
3588 /* Generic Wireless RNDIS devices that we don't have exact
3589 * idVendor/idProduct/chip yet.
3590 */
3591 {
3592 /* RNDIS is MSFT's un-official variant of CDC ACM */
3593 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3594 .driver_info = (unsigned long) &rndis_wlan_info,
3595 }, {
3596 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3597 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3598 .driver_info = (unsigned long) &rndis_wlan_info,
3599 },
3600 { }, // END
3601 };
3602 MODULE_DEVICE_TABLE(usb, products);
3603
3604 static struct usb_driver rndis_wlan_driver = {
3605 .name = "rndis_wlan",
3606 .id_table = products,
3607 .probe = usbnet_probe,
3608 .disconnect = usbnet_disconnect,
3609 .suspend = usbnet_suspend,
3610 .resume = usbnet_resume,
3611 };
3612
3613 static int __init rndis_wlan_init(void)
3614 {
3615 return usb_register(&rndis_wlan_driver);
3616 }
3617 module_init(rndis_wlan_init);
3618
3619 static void __exit rndis_wlan_exit(void)
3620 {
3621 usb_deregister(&rndis_wlan_driver);
3622 }
3623 module_exit(rndis_wlan_exit);
3624
3625 MODULE_AUTHOR("Bjorge Dijkstra");
3626 MODULE_AUTHOR("Jussi Kivilinna");
3627 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3628 MODULE_LICENSE("GPL");
3629
Linux kernel - Deliverables
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