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Merge branch 'akpm'
[linux-2.6/next.git] / drivers / net / wireless / rndis_wlan.c
blob15464d501452b98cb1157a597d4e56d392d48caf
1 /*
2 * Driver for RNDIS based wireless USB devices.
3 *
4 * Copyright (C) 2007 by Bjorge Dijkstra <bjd@jooz.net>
5 * Copyright (C) 2008-2009 by Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Portions of this file are based on NDISwrapper project,
22 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
23 * http://ndiswrapper.sourceforge.net/
24 */
25
26 // #define DEBUG // error path messages, extra info
27 // #define VERBOSE // more; success messages
28
29 #include <linux/module.h>
30 #include <linux/init.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/workqueue.h>
35 #include <linux/mutex.h>
36 #include <linux/mii.h>
37 #include <linux/usb.h>
38 #include <linux/usb/cdc.h>
39 #include <linux/ieee80211.h>
40 #include <linux/if_arp.h>
41 #include <linux/ctype.h>
42 #include <linux/spinlock.h>
43 #include <linux/slab.h>
44 #include <net/cfg80211.h>
45 #include <linux/usb/usbnet.h>
46 #include <linux/usb/rndis_host.h>
47
48
49 /* NOTE: All these are settings for Broadcom chipset */
50 static char modparam_country[4] = "EU";
51 module_param_string(country, modparam_country, 4, 0444);
52 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
53
54 static int modparam_frameburst = 1;
55 module_param_named(frameburst, modparam_frameburst, int, 0444);
56 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
57
58 static int modparam_afterburner = 0;
59 module_param_named(afterburner, modparam_afterburner, int, 0444);
60 MODULE_PARM_DESC(afterburner,
61 "enable afterburner aka '125 High Speed Mode' (default: off)");
62
63 static int modparam_power_save = 0;
64 module_param_named(power_save, modparam_power_save, int, 0444);
65 MODULE_PARM_DESC(power_save,
66 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
67
68 static int modparam_power_output = 3;
69 module_param_named(power_output, modparam_power_output, int, 0444);
70 MODULE_PARM_DESC(power_output,
71 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
72
73 static int modparam_roamtrigger = -70;
74 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
75 MODULE_PARM_DESC(roamtrigger,
76 "set roaming dBm trigger: -80=optimize for distance, "
77 "-60=bandwidth (default: -70)");
78
79 static int modparam_roamdelta = 1;
80 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
81 MODULE_PARM_DESC(roamdelta,
82 "set roaming tendency: 0=aggressive, 1=moderate, "
83 "2=conservative (default: moderate)");
84
85 static int modparam_workaround_interval;
86 module_param_named(workaround_interval, modparam_workaround_interval,
87 int, 0444);
88 MODULE_PARM_DESC(workaround_interval,
89 "set stall workaround interval in msecs (0=disabled) (default: 0)");
90
91
92 /* various RNDIS OID defs */
93 #define OID_GEN_LINK_SPEED cpu_to_le32(0x00010107)
94 #define OID_GEN_RNDIS_CONFIG_PARAMETER cpu_to_le32(0x0001021b)
95
96 #define OID_GEN_XMIT_OK cpu_to_le32(0x00020101)
97 #define OID_GEN_RCV_OK cpu_to_le32(0x00020102)
98 #define OID_GEN_XMIT_ERROR cpu_to_le32(0x00020103)
99 #define OID_GEN_RCV_ERROR cpu_to_le32(0x00020104)
100 #define OID_GEN_RCV_NO_BUFFER cpu_to_le32(0x00020105)
101
102 #define OID_802_3_CURRENT_ADDRESS cpu_to_le32(0x01010102)
103 #define OID_802_3_MULTICAST_LIST cpu_to_le32(0x01010103)
104 #define OID_802_3_MAXIMUM_LIST_SIZE cpu_to_le32(0x01010104)
105
106 #define OID_802_11_BSSID cpu_to_le32(0x0d010101)
107 #define OID_802_11_SSID cpu_to_le32(0x0d010102)
108 #define OID_802_11_INFRASTRUCTURE_MODE cpu_to_le32(0x0d010108)
109 #define OID_802_11_ADD_WEP cpu_to_le32(0x0d010113)
110 #define OID_802_11_REMOVE_WEP cpu_to_le32(0x0d010114)
111 #define OID_802_11_DISASSOCIATE cpu_to_le32(0x0d010115)
112 #define OID_802_11_AUTHENTICATION_MODE cpu_to_le32(0x0d010118)
113 #define OID_802_11_PRIVACY_FILTER cpu_to_le32(0x0d010119)
114 #define OID_802_11_BSSID_LIST_SCAN cpu_to_le32(0x0d01011a)
115 #define OID_802_11_ENCRYPTION_STATUS cpu_to_le32(0x0d01011b)
116 #define OID_802_11_ADD_KEY cpu_to_le32(0x0d01011d)
117 #define OID_802_11_REMOVE_KEY cpu_to_le32(0x0d01011e)
118 #define OID_802_11_ASSOCIATION_INFORMATION cpu_to_le32(0x0d01011f)
119 #define OID_802_11_CAPABILITY cpu_to_le32(0x0d010122)
120 #define OID_802_11_PMKID cpu_to_le32(0x0d010123)
121 #define OID_802_11_NETWORK_TYPES_SUPPORTED cpu_to_le32(0x0d010203)
122 #define OID_802_11_NETWORK_TYPE_IN_USE cpu_to_le32(0x0d010204)
123 #define OID_802_11_TX_POWER_LEVEL cpu_to_le32(0x0d010205)
124 #define OID_802_11_RSSI cpu_to_le32(0x0d010206)
125 #define OID_802_11_RSSI_TRIGGER cpu_to_le32(0x0d010207)
126 #define OID_802_11_FRAGMENTATION_THRESHOLD cpu_to_le32(0x0d010209)
127 #define OID_802_11_RTS_THRESHOLD cpu_to_le32(0x0d01020a)
128 #define OID_802_11_SUPPORTED_RATES cpu_to_le32(0x0d01020e)
129 #define OID_802_11_CONFIGURATION cpu_to_le32(0x0d010211)
130 #define OID_802_11_POWER_MODE cpu_to_le32(0x0d010216)
131 #define OID_802_11_BSSID_LIST cpu_to_le32(0x0d010217)
132
133
134 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
135 #define WL_NOISE -96 /* typical noise level in dBm */
136 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
137
138
139 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
140 * based on wireless rndis) has default txpower of 13dBm.
141 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
142 * 100% : 20 mW ~ 13dBm
143 * 75% : 15 mW ~ 12dBm
144 * 50% : 10 mW ~ 10dBm
145 * 25% : 5 mW ~ 7dBm
146 */
147 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
148 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
149 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
150 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
151
152
153 /* codes for "status" field of completion messages */
154 #define RNDIS_STATUS_ADAPTER_NOT_READY cpu_to_le32(0xc0010011)
155 #define RNDIS_STATUS_ADAPTER_NOT_OPEN cpu_to_le32(0xc0010012)
156
157
158 /* Known device types */
159 #define RNDIS_UNKNOWN 0
160 #define RNDIS_BCM4320A 1
161 #define RNDIS_BCM4320B 2
162
163
164 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
165 * slightly modified for datatype endianess, etc
166 */
167 #define NDIS_802_11_LENGTH_SSID 32
168 #define NDIS_802_11_LENGTH_RATES 8
169 #define NDIS_802_11_LENGTH_RATES_EX 16
170
171 enum ndis_80211_net_type {
172 NDIS_80211_TYPE_FREQ_HOP,
173 NDIS_80211_TYPE_DIRECT_SEQ,
174 NDIS_80211_TYPE_OFDM_A,
175 NDIS_80211_TYPE_OFDM_G
176 };
177
178 enum ndis_80211_net_infra {
179 NDIS_80211_INFRA_ADHOC,
180 NDIS_80211_INFRA_INFRA,
181 NDIS_80211_INFRA_AUTO_UNKNOWN
182 };
183
184 enum ndis_80211_auth_mode {
185 NDIS_80211_AUTH_OPEN,
186 NDIS_80211_AUTH_SHARED,
187 NDIS_80211_AUTH_AUTO_SWITCH,
188 NDIS_80211_AUTH_WPA,
189 NDIS_80211_AUTH_WPA_PSK,
190 NDIS_80211_AUTH_WPA_NONE,
191 NDIS_80211_AUTH_WPA2,
192 NDIS_80211_AUTH_WPA2_PSK
193 };
194
195 enum ndis_80211_encr_status {
196 NDIS_80211_ENCR_WEP_ENABLED,
197 NDIS_80211_ENCR_DISABLED,
198 NDIS_80211_ENCR_WEP_KEY_ABSENT,
199 NDIS_80211_ENCR_NOT_SUPPORTED,
200 NDIS_80211_ENCR_TKIP_ENABLED,
201 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
202 NDIS_80211_ENCR_CCMP_ENABLED,
203 NDIS_80211_ENCR_CCMP_KEY_ABSENT
204 };
205
206 enum ndis_80211_priv_filter {
207 NDIS_80211_PRIV_ACCEPT_ALL,
208 NDIS_80211_PRIV_8021X_WEP
209 };
210
211 enum ndis_80211_status_type {
212 NDIS_80211_STATUSTYPE_AUTHENTICATION,
213 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
214 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
215 NDIS_80211_STATUSTYPE_RADIOSTATE,
216 };
217
218 enum ndis_80211_media_stream_mode {
219 NDIS_80211_MEDIA_STREAM_OFF,
220 NDIS_80211_MEDIA_STREAM_ON
221 };
222
223 enum ndis_80211_radio_status {
224 NDIS_80211_RADIO_STATUS_ON,
225 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
226 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
227 };
228
229 enum ndis_80211_addkey_bits {
230 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
231 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
232 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
233 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
234 };
235
236 enum ndis_80211_addwep_bits {
237 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
238 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
239 };
240
241 enum ndis_80211_power_mode {
242 NDIS_80211_POWER_MODE_CAM,
243 NDIS_80211_POWER_MODE_MAX_PSP,
244 NDIS_80211_POWER_MODE_FAST_PSP,
245 };
246
247 struct ndis_80211_auth_request {
248 __le32 length;
249 u8 bssid[6];
250 u8 padding[2];
251 __le32 flags;
252 } __packed;
253
254 struct ndis_80211_pmkid_candidate {
255 u8 bssid[6];
256 u8 padding[2];
257 __le32 flags;
258 } __packed;
259
260 struct ndis_80211_pmkid_cand_list {
261 __le32 version;
262 __le32 num_candidates;
263 struct ndis_80211_pmkid_candidate candidate_list[0];
264 } __packed;
265
266 struct ndis_80211_status_indication {
267 __le32 status_type;
268 union {
269 __le32 media_stream_mode;
270 __le32 radio_status;
271 struct ndis_80211_auth_request auth_request[0];
272 struct ndis_80211_pmkid_cand_list cand_list;
273 } u;
274 } __packed;
275
276 struct ndis_80211_ssid {
277 __le32 length;
278 u8 essid[NDIS_802_11_LENGTH_SSID];
279 } __packed;
280
281 struct ndis_80211_conf_freq_hop {
282 __le32 length;
283 __le32 hop_pattern;
284 __le32 hop_set;
285 __le32 dwell_time;
286 } __packed;
287
288 struct ndis_80211_conf {
289 __le32 length;
290 __le32 beacon_period;
291 __le32 atim_window;
292 __le32 ds_config;
293 struct ndis_80211_conf_freq_hop fh_config;
294 } __packed;
295
296 struct ndis_80211_bssid_ex {
297 __le32 length;
298 u8 mac[6];
299 u8 padding[2];
300 struct ndis_80211_ssid ssid;
301 __le32 privacy;
302 __le32 rssi;
303 __le32 net_type;
304 struct ndis_80211_conf config;
305 __le32 net_infra;
306 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
307 __le32 ie_length;
308 u8 ies[0];
309 } __packed;
310
311 struct ndis_80211_bssid_list_ex {
312 __le32 num_items;
313 struct ndis_80211_bssid_ex bssid[0];
314 } __packed;
315
316 struct ndis_80211_fixed_ies {
317 u8 timestamp[8];
318 __le16 beacon_interval;
319 __le16 capabilities;
320 } __packed;
321
322 struct ndis_80211_wep_key {
323 __le32 size;
324 __le32 index;
325 __le32 length;
326 u8 material[32];
327 } __packed;
328
329 struct ndis_80211_key {
330 __le32 size;
331 __le32 index;
332 __le32 length;
333 u8 bssid[6];
334 u8 padding[6];
335 u8 rsc[8];
336 u8 material[32];
337 } __packed;
338
339 struct ndis_80211_remove_key {
340 __le32 size;
341 __le32 index;
342 u8 bssid[6];
343 u8 padding[2];
344 } __packed;
345
346 struct ndis_config_param {
347 __le32 name_offs;
348 __le32 name_length;
349 __le32 type;
350 __le32 value_offs;
351 __le32 value_length;
352 } __packed;
353
354 struct ndis_80211_assoc_info {
355 __le32 length;
356 __le16 req_ies;
357 struct req_ie {
358 __le16 capa;
359 __le16 listen_interval;
360 u8 cur_ap_address[6];
361 } req_ie;
362 __le32 req_ie_length;
363 __le32 offset_req_ies;
364 __le16 resp_ies;
365 struct resp_ie {
366 __le16 capa;
367 __le16 status_code;
368 __le16 assoc_id;
369 } resp_ie;
370 __le32 resp_ie_length;
371 __le32 offset_resp_ies;
372 } __packed;
373
374 struct ndis_80211_auth_encr_pair {
375 __le32 auth_mode;
376 __le32 encr_mode;
377 } __packed;
378
379 struct ndis_80211_capability {
380 __le32 length;
381 __le32 version;
382 __le32 num_pmkids;
383 __le32 num_auth_encr_pair;
384 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
385 } __packed;
386
387 struct ndis_80211_bssid_info {
388 u8 bssid[6];
389 u8 pmkid[16];
390 };
391
392 struct ndis_80211_pmkid {
393 __le32 length;
394 __le32 bssid_info_count;
395 struct ndis_80211_bssid_info bssid_info[0];
396 };
397
398 /*
399 * private data
400 */
401 #define NET_TYPE_11FB 0
402
403 #define CAP_MODE_80211A 1
404 #define CAP_MODE_80211B 2
405 #define CAP_MODE_80211G 4
406 #define CAP_MODE_MASK 7
407
408 #define WORK_LINK_UP (1<<0)
409 #define WORK_LINK_DOWN (1<<1)
410 #define WORK_SET_MULTICAST_LIST (1<<2)
411
412 #define RNDIS_WLAN_ALG_NONE 0
413 #define RNDIS_WLAN_ALG_WEP (1<<0)
414 #define RNDIS_WLAN_ALG_TKIP (1<<1)
415 #define RNDIS_WLAN_ALG_CCMP (1<<2)
416
417 #define RNDIS_WLAN_KEY_MGMT_NONE 0
418 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
419 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
420
421 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
422
423 static const struct ieee80211_channel rndis_channels[] = {
424 { .center_freq = 2412 },
425 { .center_freq = 2417 },
426 { .center_freq = 2422 },
427 { .center_freq = 2427 },
428 { .center_freq = 2432 },
429 { .center_freq = 2437 },
430 { .center_freq = 2442 },
431 { .center_freq = 2447 },
432 { .center_freq = 2452 },
433 { .center_freq = 2457 },
434 { .center_freq = 2462 },
435 { .center_freq = 2467 },
436 { .center_freq = 2472 },
437 { .center_freq = 2484 },
438 };
439
440 static const struct ieee80211_rate rndis_rates[] = {
441 { .bitrate = 10 },
442 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
443 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
444 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
445 { .bitrate = 60 },
446 { .bitrate = 90 },
447 { .bitrate = 120 },
448 { .bitrate = 180 },
449 { .bitrate = 240 },
450 { .bitrate = 360 },
451 { .bitrate = 480 },
452 { .bitrate = 540 }
453 };
454
455 static const u32 rndis_cipher_suites[] = {
456 WLAN_CIPHER_SUITE_WEP40,
457 WLAN_CIPHER_SUITE_WEP104,
458 WLAN_CIPHER_SUITE_TKIP,
459 WLAN_CIPHER_SUITE_CCMP,
460 };
461
462 struct rndis_wlan_encr_key {
463 int len;
464 u32 cipher;
465 u8 material[32];
466 u8 bssid[ETH_ALEN];
467 bool pairwise;
468 bool tx_key;
469 };
470
471 /* RNDIS device private data */
472 struct rndis_wlan_private {
473 struct usbnet *usbdev;
474
475 struct wireless_dev wdev;
476
477 struct cfg80211_scan_request *scan_request;
478
479 struct workqueue_struct *workqueue;
480 struct delayed_work dev_poller_work;
481 struct delayed_work scan_work;
482 struct work_struct work;
483 struct mutex command_lock;
484 unsigned long work_pending;
485 int last_qual;
486 s32 cqm_rssi_thold;
487 u32 cqm_rssi_hyst;
488 int last_cqm_event_rssi;
489
490 struct ieee80211_supported_band band;
491 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
492 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
493 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
494
495 int device_type;
496 int caps;
497 int multicast_size;
498
499 /* module parameters */
500 char param_country[4];
501 int param_frameburst;
502 int param_afterburner;
503 int param_power_save;
504 int param_power_output;
505 int param_roamtrigger;
506 int param_roamdelta;
507 u32 param_workaround_interval;
508
509 /* hardware state */
510 bool radio_on;
511 int power_mode;
512 int infra_mode;
513 bool connected;
514 u8 bssid[ETH_ALEN];
515 __le32 current_command_oid;
516
517 /* encryption stuff */
518 int encr_tx_key_index;
519 struct rndis_wlan_encr_key encr_keys[4];
520 int wpa_version;
521
522 u8 command_buffer[COMMAND_BUFFER_SIZE];
523 };
524
525 /*
526 * cfg80211 ops
527 */
528 static int rndis_change_virtual_intf(struct wiphy *wiphy,
529 struct net_device *dev,
530 enum nl80211_iftype type, u32 *flags,
531 struct vif_params *params);
532
533 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
534 struct cfg80211_scan_request *request);
535
536 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
537
538 static int rndis_set_tx_power(struct wiphy *wiphy,
539 enum nl80211_tx_power_setting type,
540 int mbm);
541 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm);
542
543 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
544 struct cfg80211_connect_params *sme);
545
546 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
547 u16 reason_code);
548
549 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
550 struct cfg80211_ibss_params *params);
551
552 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
553
554 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev,
555 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type);
556
557 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
558 u8 key_index, bool pairwise, const u8 *mac_addr,
559 struct key_params *params);
560
561 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
562 u8 key_index, bool pairwise, const u8 *mac_addr);
563
564 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
565 u8 key_index, bool unicast, bool multicast);
566
567 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
568 u8 *mac, struct station_info *sinfo);
569
570 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
571 int idx, u8 *mac, struct station_info *sinfo);
572
573 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
574 struct cfg80211_pmksa *pmksa);
575
576 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
577 struct cfg80211_pmksa *pmksa);
578
579 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
580
581 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
582 bool enabled, int timeout);
583
584 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
585 struct net_device *dev,
586 s32 rssi_thold, u32 rssi_hyst);
587
588 static const struct cfg80211_ops rndis_config_ops = {
589 .change_virtual_intf = rndis_change_virtual_intf,
590 .scan = rndis_scan,
591 .set_wiphy_params = rndis_set_wiphy_params,
592 .set_tx_power = rndis_set_tx_power,
593 .get_tx_power = rndis_get_tx_power,
594 .connect = rndis_connect,
595 .disconnect = rndis_disconnect,
596 .join_ibss = rndis_join_ibss,
597 .leave_ibss = rndis_leave_ibss,
598 .set_channel = rndis_set_channel,
599 .add_key = rndis_add_key,
600 .del_key = rndis_del_key,
601 .set_default_key = rndis_set_default_key,
602 .get_station = rndis_get_station,
603 .dump_station = rndis_dump_station,
604 .set_pmksa = rndis_set_pmksa,
605 .del_pmksa = rndis_del_pmksa,
606 .flush_pmksa = rndis_flush_pmksa,
607 .set_power_mgmt = rndis_set_power_mgmt,
608 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
609 };
610
611 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
612
613
614 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
615 {
616 return (struct rndis_wlan_private *)dev->driver_priv;
617 }
618
619 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
620 {
621 switch (priv->param_power_output) {
622 default:
623 case 3:
624 return BCM4320_DEFAULT_TXPOWER_DBM_100;
625 case 2:
626 return BCM4320_DEFAULT_TXPOWER_DBM_75;
627 case 1:
628 return BCM4320_DEFAULT_TXPOWER_DBM_50;
629 case 0:
630 return BCM4320_DEFAULT_TXPOWER_DBM_25;
631 }
632 }
633
634 static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
635 {
636 int cipher = priv->encr_keys[idx].cipher;
637
638 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
639 cipher == WLAN_CIPHER_SUITE_TKIP);
640 }
641
642 static int rndis_cipher_to_alg(u32 cipher)
643 {
644 switch (cipher) {
645 default:
646 return RNDIS_WLAN_ALG_NONE;
647 case WLAN_CIPHER_SUITE_WEP40:
648 case WLAN_CIPHER_SUITE_WEP104:
649 return RNDIS_WLAN_ALG_WEP;
650 case WLAN_CIPHER_SUITE_TKIP:
651 return RNDIS_WLAN_ALG_TKIP;
652 case WLAN_CIPHER_SUITE_CCMP:
653 return RNDIS_WLAN_ALG_CCMP;
654 }
655 }
656
657 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
658 {
659 switch (akm_suite) {
660 default:
661 return RNDIS_WLAN_KEY_MGMT_NONE;
662 case WLAN_AKM_SUITE_8021X:
663 return RNDIS_WLAN_KEY_MGMT_802_1X;
664 case WLAN_AKM_SUITE_PSK:
665 return RNDIS_WLAN_KEY_MGMT_PSK;
666 }
667 }
668
669 #ifdef DEBUG
670 static const char *oid_to_string(__le32 oid)
671 {
672 switch (oid) {
673 #define OID_STR(oid) case oid: return(#oid)
674 /* from rndis_host.h */
675 OID_STR(OID_802_3_PERMANENT_ADDRESS);
676 OID_STR(OID_GEN_MAXIMUM_FRAME_SIZE);
677 OID_STR(OID_GEN_CURRENT_PACKET_FILTER);
678 OID_STR(OID_GEN_PHYSICAL_MEDIUM);
679
680 /* from rndis_wlan.c */
681 OID_STR(OID_GEN_LINK_SPEED);
682 OID_STR(OID_GEN_RNDIS_CONFIG_PARAMETER);
683
684 OID_STR(OID_GEN_XMIT_OK);
685 OID_STR(OID_GEN_RCV_OK);
686 OID_STR(OID_GEN_XMIT_ERROR);
687 OID_STR(OID_GEN_RCV_ERROR);
688 OID_STR(OID_GEN_RCV_NO_BUFFER);
689
690 OID_STR(OID_802_3_CURRENT_ADDRESS);
691 OID_STR(OID_802_3_MULTICAST_LIST);
692 OID_STR(OID_802_3_MAXIMUM_LIST_SIZE);
693
694 OID_STR(OID_802_11_BSSID);
695 OID_STR(OID_802_11_SSID);
696 OID_STR(OID_802_11_INFRASTRUCTURE_MODE);
697 OID_STR(OID_802_11_ADD_WEP);
698 OID_STR(OID_802_11_REMOVE_WEP);
699 OID_STR(OID_802_11_DISASSOCIATE);
700 OID_STR(OID_802_11_AUTHENTICATION_MODE);
701 OID_STR(OID_802_11_PRIVACY_FILTER);
702 OID_STR(OID_802_11_BSSID_LIST_SCAN);
703 OID_STR(OID_802_11_ENCRYPTION_STATUS);
704 OID_STR(OID_802_11_ADD_KEY);
705 OID_STR(OID_802_11_REMOVE_KEY);
706 OID_STR(OID_802_11_ASSOCIATION_INFORMATION);
707 OID_STR(OID_802_11_CAPABILITY);
708 OID_STR(OID_802_11_PMKID);
709 OID_STR(OID_802_11_NETWORK_TYPES_SUPPORTED);
710 OID_STR(OID_802_11_NETWORK_TYPE_IN_USE);
711 OID_STR(OID_802_11_TX_POWER_LEVEL);
712 OID_STR(OID_802_11_RSSI);
713 OID_STR(OID_802_11_RSSI_TRIGGER);
714 OID_STR(OID_802_11_FRAGMENTATION_THRESHOLD);
715 OID_STR(OID_802_11_RTS_THRESHOLD);
716 OID_STR(OID_802_11_SUPPORTED_RATES);
717 OID_STR(OID_802_11_CONFIGURATION);
718 OID_STR(OID_802_11_POWER_MODE);
719 OID_STR(OID_802_11_BSSID_LIST);
720 #undef OID_STR
721 }
722
723 return "?";
724 }
725 #else
726 static const char *oid_to_string(__le32 oid)
727 {
728 return "?";
729 }
730 #endif
731
732 /* translate error code */
733 static int rndis_error_status(__le32 rndis_status)
734 {
735 int ret = -EINVAL;
736 switch (rndis_status) {
737 case RNDIS_STATUS_SUCCESS:
738 ret = 0;
739 break;
740 case RNDIS_STATUS_FAILURE:
741 case RNDIS_STATUS_INVALID_DATA:
742 ret = -EINVAL;
743 break;
744 case RNDIS_STATUS_NOT_SUPPORTED:
745 ret = -EOPNOTSUPP;
746 break;
747 case RNDIS_STATUS_ADAPTER_NOT_READY:
748 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
749 ret = -EBUSY;
750 break;
751 }
752 return ret;
753 }
754
755 static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
756 {
757 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
758 union {
759 void *buf;
760 struct rndis_msg_hdr *header;
761 struct rndis_query *get;
762 struct rndis_query_c *get_c;
763 } u;
764 int ret, buflen;
765 int resplen, respoffs, copylen;
766
767 buflen = *len + sizeof(*u.get);
768 if (buflen < CONTROL_BUFFER_SIZE)
769 buflen = CONTROL_BUFFER_SIZE;
770
771 if (buflen > COMMAND_BUFFER_SIZE) {
772 u.buf = kmalloc(buflen, GFP_KERNEL);
773 if (!u.buf)
774 return -ENOMEM;
775 } else {
776 u.buf = priv->command_buffer;
777 }
778
779 mutex_lock(&priv->command_lock);
780
781 memset(u.get, 0, sizeof *u.get);
782 u.get->msg_type = RNDIS_MSG_QUERY;
783 u.get->msg_len = cpu_to_le32(sizeof *u.get);
784 u.get->oid = oid;
785
786 priv->current_command_oid = oid;
787 ret = rndis_command(dev, u.header, buflen);
788 priv->current_command_oid = 0;
789 if (ret < 0)
790 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
791 __func__, oid_to_string(oid), ret,
792 le32_to_cpu(u.get_c->status));
793
794 if (ret == 0) {
795 resplen = le32_to_cpu(u.get_c->len);
796 respoffs = le32_to_cpu(u.get_c->offset) + 8;
797
798 if (respoffs > buflen) {
799 /* Device returned data offset outside buffer, error. */
800 netdev_dbg(dev->net, "%s(%s): received invalid "
801 "data offset: %d > %d\n", __func__,
802 oid_to_string(oid), respoffs, buflen);
803
804 ret = -EINVAL;
805 goto exit_unlock;
806 }
807
808 if ((resplen + respoffs) > buflen) {
809 /* Device would have returned more data if buffer would
810 * have been big enough. Copy just the bits that we got.
811 */
812 copylen = buflen - respoffs;
813 } else {
814 copylen = resplen;
815 }
816
817 if (copylen > *len)
818 copylen = *len;
819
820 memcpy(data, u.buf + respoffs, copylen);
821
822 *len = resplen;
823
824 ret = rndis_error_status(u.get_c->status);
825 if (ret < 0)
826 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
827 __func__, oid_to_string(oid),
828 le32_to_cpu(u.get_c->status), ret);
829 }
830
831 exit_unlock:
832 mutex_unlock(&priv->command_lock);
833
834 if (u.buf != priv->command_buffer)
835 kfree(u.buf);
836 return ret;
837 }
838
839 static int rndis_set_oid(struct usbnet *dev, __le32 oid, const void *data,
840 int len)
841 {
842 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
843 union {
844 void *buf;
845 struct rndis_msg_hdr *header;
846 struct rndis_set *set;
847 struct rndis_set_c *set_c;
848 } u;
849 int ret, buflen;
850
851 buflen = len + sizeof(*u.set);
852 if (buflen < CONTROL_BUFFER_SIZE)
853 buflen = CONTROL_BUFFER_SIZE;
854
855 if (buflen > COMMAND_BUFFER_SIZE) {
856 u.buf = kmalloc(buflen, GFP_KERNEL);
857 if (!u.buf)
858 return -ENOMEM;
859 } else {
860 u.buf = priv->command_buffer;
861 }
862
863 mutex_lock(&priv->command_lock);
864
865 memset(u.set, 0, sizeof *u.set);
866 u.set->msg_type = RNDIS_MSG_SET;
867 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
868 u.set->oid = oid;
869 u.set->len = cpu_to_le32(len);
870 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
871 u.set->handle = cpu_to_le32(0);
872 memcpy(u.buf + sizeof(*u.set), data, len);
873
874 priv->current_command_oid = oid;
875 ret = rndis_command(dev, u.header, buflen);
876 priv->current_command_oid = 0;
877 if (ret < 0)
878 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
879 __func__, oid_to_string(oid), ret,
880 le32_to_cpu(u.set_c->status));
881
882 if (ret == 0) {
883 ret = rndis_error_status(u.set_c->status);
884
885 if (ret < 0)
886 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
887 __func__, oid_to_string(oid),
888 le32_to_cpu(u.set_c->status), ret);
889 }
890
891 mutex_unlock(&priv->command_lock);
892
893 if (u.buf != priv->command_buffer)
894 kfree(u.buf);
895 return ret;
896 }
897
898 static int rndis_reset(struct usbnet *usbdev)
899 {
900 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
901 struct rndis_reset *reset;
902 int ret;
903
904 mutex_lock(&priv->command_lock);
905
906 reset = (void *)priv->command_buffer;
907 memset(reset, 0, sizeof(*reset));
908 reset->msg_type = RNDIS_MSG_RESET;
909 reset->msg_len = cpu_to_le32(sizeof(*reset));
910 priv->current_command_oid = 0;
911 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
912
913 mutex_unlock(&priv->command_lock);
914
915 if (ret < 0)
916 return ret;
917 return 0;
918 }
919
920 /*
921 * Specs say that we can only set config parameters only soon after device
922 * initialization.
923 * value_type: 0 = u32, 2 = unicode string
924 */
925 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
926 int value_type, void *value)
927 {
928 struct ndis_config_param *infobuf;
929 int value_len, info_len, param_len, ret, i;
930 __le16 *unibuf;
931 __le32 *dst_value;
932
933 if (value_type == 0)
934 value_len = sizeof(__le32);
935 else if (value_type == 2)
936 value_len = strlen(value) * sizeof(__le16);
937 else
938 return -EINVAL;
939
940 param_len = strlen(param) * sizeof(__le16);
941 info_len = sizeof(*infobuf) + param_len + value_len;
942
943 #ifdef DEBUG
944 info_len += 12;
945 #endif
946 infobuf = kmalloc(info_len, GFP_KERNEL);
947 if (!infobuf)
948 return -ENOMEM;
949
950 #ifdef DEBUG
951 info_len -= 12;
952 /* extra 12 bytes are for padding (debug output) */
953 memset(infobuf, 0xCC, info_len + 12);
954 #endif
955
956 if (value_type == 2)
957 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
958 param, (u8 *)value);
959 else
960 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
961 param, *(u32 *)value);
962
963 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
964 infobuf->name_length = cpu_to_le32(param_len);
965 infobuf->type = cpu_to_le32(value_type);
966 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
967 infobuf->value_length = cpu_to_le32(value_len);
968
969 /* simple string to unicode string conversion */
970 unibuf = (void *)infobuf + sizeof(*infobuf);
971 for (i = 0; i < param_len / sizeof(__le16); i++)
972 unibuf[i] = cpu_to_le16(param[i]);
973
974 if (value_type == 2) {
975 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
976 for (i = 0; i < value_len / sizeof(__le16); i++)
977 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
978 } else {
979 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
980 *dst_value = cpu_to_le32(*(u32 *)value);
981 }
982
983 #ifdef DEBUG
984 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
985 for (i = 0; i < info_len; i += 12) {
986 u32 *tmp = (u32 *)((u8 *)infobuf + i);
987 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
988 cpu_to_be32(tmp[0]),
989 cpu_to_be32(tmp[1]),
990 cpu_to_be32(tmp[2]));
991 }
992 #endif
993
994 ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
995 infobuf, info_len);
996 if (ret != 0)
997 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
998 ret);
999
1000 kfree(infobuf);
1001 return ret;
1002 }
1003
1004 static int rndis_set_config_parameter_str(struct usbnet *dev,
1005 char *param, char *value)
1006 {
1007 return rndis_set_config_parameter(dev, param, 2, value);
1008 }
1009
1010 /*
1011 * data conversion functions
1012 */
1013 static int level_to_qual(int level)
1014 {
1015 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
1016 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
1017 }
1018
1019 /*
1020 * common functions
1021 */
1022 static int set_infra_mode(struct usbnet *usbdev, int mode);
1023 static void restore_keys(struct usbnet *usbdev);
1024 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
1025 bool *matched);
1026
1027 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
1028 {
1029 __le32 tmp;
1030
1031 /* Note: OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
1032 tmp = cpu_to_le32(1);
1033 return rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
1034 sizeof(tmp));
1035 }
1036
1037 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
1038 {
1039 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1040 int ret;
1041
1042 ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
1043 if (ret < 0) {
1044 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
1045 return ret;
1046 }
1047 if (ret == 0) {
1048 priv->radio_on = true;
1049 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1050 }
1051
1052 return ret;
1053 }
1054
1055 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1056 {
1057 int ret;
1058
1059 ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
1060 if (ret < 0) {
1061 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1062 bssid, ret);
1063 return ret;
1064 }
1065
1066 return ret;
1067 }
1068
1069 static int clear_bssid(struct usbnet *usbdev)
1070 {
1071 static const u8 broadcast_mac[ETH_ALEN] = {
1072 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1073 };
1074
1075 return set_bssid(usbdev, broadcast_mac);
1076 }
1077
1078 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1079 {
1080 int ret, len;
1081
1082 len = ETH_ALEN;
1083 ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
1084
1085 if (ret != 0)
1086 memset(bssid, 0, ETH_ALEN);
1087
1088 return ret;
1089 }
1090
1091 static int get_association_info(struct usbnet *usbdev,
1092 struct ndis_80211_assoc_info *info, int len)
1093 {
1094 return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
1095 info, &len);
1096 }
1097
1098 static bool is_associated(struct usbnet *usbdev)
1099 {
1100 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1101 u8 bssid[ETH_ALEN];
1102 int ret;
1103
1104 if (!priv->radio_on)
1105 return false;
1106
1107 ret = get_bssid(usbdev, bssid);
1108
1109 return (ret == 0 && !is_zero_ether_addr(bssid));
1110 }
1111
1112 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1113 {
1114 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1115 struct ndis_80211_ssid ssid;
1116 int i, ret = 0;
1117
1118 if (priv->radio_on) {
1119 ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
1120 if (ret == 0) {
1121 priv->radio_on = false;
1122 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1123 __func__);
1124
1125 if (reset_ssid)
1126 msleep(100);
1127 }
1128 }
1129
1130 /* disassociate causes radio to be turned off; if reset_ssid
1131 * is given, set random ssid to enable radio */
1132 if (reset_ssid) {
1133 /* Set device to infrastructure mode so we don't get ad-hoc
1134 * 'media connect' indications with the random ssid.
1135 */
1136 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1137
1138 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1139 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1140 ssid.essid[0] = 0x1;
1141 ssid.essid[1] = 0xff;
1142 for (i = 2; i < sizeof(ssid.essid); i++)
1143 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1144 ret = set_essid(usbdev, &ssid);
1145 }
1146 return ret;
1147 }
1148
1149 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1150 enum nl80211_auth_type auth_type, int keymgmt)
1151 {
1152 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1153 __le32 tmp;
1154 int auth_mode, ret;
1155
1156 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1157 __func__, wpa_version, auth_type, keymgmt);
1158
1159 if (wpa_version & NL80211_WPA_VERSION_2) {
1160 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1161 auth_mode = NDIS_80211_AUTH_WPA2;
1162 else
1163 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1164 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1165 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1166 auth_mode = NDIS_80211_AUTH_WPA;
1167 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1168 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1169 else
1170 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1171 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1172 auth_mode = NDIS_80211_AUTH_SHARED;
1173 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1174 auth_mode = NDIS_80211_AUTH_OPEN;
1175 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1176 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1177 else
1178 return -ENOTSUPP;
1179
1180 tmp = cpu_to_le32(auth_mode);
1181 ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
1182 sizeof(tmp));
1183 if (ret != 0) {
1184 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1185 ret);
1186 return ret;
1187 }
1188
1189 priv->wpa_version = wpa_version;
1190
1191 return 0;
1192 }
1193
1194 static int set_priv_filter(struct usbnet *usbdev)
1195 {
1196 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1197 __le32 tmp;
1198
1199 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1200 __func__, priv->wpa_version);
1201
1202 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1203 priv->wpa_version & NL80211_WPA_VERSION_1)
1204 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1205 else
1206 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1207
1208 return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
1209 sizeof(tmp));
1210 }
1211
1212 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1213 {
1214 __le32 tmp;
1215 int encr_mode, ret;
1216
1217 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1218 __func__, pairwise, groupwise);
1219
1220 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1221 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1222 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1223 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1224 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1225 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1226 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1227 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1228 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1229 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1230 else
1231 encr_mode = NDIS_80211_ENCR_DISABLED;
1232
1233 tmp = cpu_to_le32(encr_mode);
1234 ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
1235 sizeof(tmp));
1236 if (ret != 0) {
1237 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1238 ret);
1239 return ret;
1240 }
1241
1242 return 0;
1243 }
1244
1245 static int set_infra_mode(struct usbnet *usbdev, int mode)
1246 {
1247 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1248 __le32 tmp;
1249 int ret;
1250
1251 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1252 __func__, priv->infra_mode);
1253
1254 tmp = cpu_to_le32(mode);
1255 ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
1256 sizeof(tmp));
1257 if (ret != 0) {
1258 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1259 ret);
1260 return ret;
1261 }
1262
1263 /* NDIS drivers clear keys when infrastructure mode is
1264 * changed. But Linux tools assume otherwise. So set the
1265 * keys */
1266 restore_keys(usbdev);
1267
1268 priv->infra_mode = mode;
1269 return 0;
1270 }
1271
1272 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1273 {
1274 __le32 tmp;
1275
1276 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1277
1278 if (rts_threshold < 0 || rts_threshold > 2347)
1279 rts_threshold = 2347;
1280
1281 tmp = cpu_to_le32(rts_threshold);
1282 return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
1283 sizeof(tmp));
1284 }
1285
1286 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1287 {
1288 __le32 tmp;
1289
1290 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1291
1292 if (frag_threshold < 256 || frag_threshold > 2346)
1293 frag_threshold = 2346;
1294
1295 tmp = cpu_to_le32(frag_threshold);
1296 return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
1297 sizeof(tmp));
1298 }
1299
1300 static void set_default_iw_params(struct usbnet *usbdev)
1301 {
1302 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1303 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1304 RNDIS_WLAN_KEY_MGMT_NONE);
1305 set_priv_filter(usbdev);
1306 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1307 }
1308
1309 static int deauthenticate(struct usbnet *usbdev)
1310 {
1311 int ret;
1312
1313 ret = disassociate(usbdev, true);
1314 set_default_iw_params(usbdev);
1315 return ret;
1316 }
1317
1318 static int set_channel(struct usbnet *usbdev, int channel)
1319 {
1320 struct ndis_80211_conf config;
1321 unsigned int dsconfig;
1322 int len, ret;
1323
1324 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1325
1326 /* this OID is valid only when not associated */
1327 if (is_associated(usbdev))
1328 return 0;
1329
1330 dsconfig = ieee80211_dsss_chan_to_freq(channel) * 1000;
1331
1332 len = sizeof(config);
1333 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
1334 if (ret < 0) {
1335 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1336 __func__);
1337 return ret;
1338 }
1339
1340 config.ds_config = cpu_to_le32(dsconfig);
1341 ret = rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
1342 sizeof(config));
1343
1344 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1345
1346 return ret;
1347 }
1348
1349 /* index must be 0 - N, as per NDIS */
1350 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1351 int index)
1352 {
1353 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1354 struct ndis_80211_wep_key ndis_key;
1355 u32 cipher;
1356 int ret;
1357
1358 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1359 __func__, index, key_len);
1360
1361 if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
1362 return -EINVAL;
1363
1364 if (key_len == 5)
1365 cipher = WLAN_CIPHER_SUITE_WEP40;
1366 else
1367 cipher = WLAN_CIPHER_SUITE_WEP104;
1368
1369 memset(&ndis_key, 0, sizeof(ndis_key));
1370
1371 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1372 ndis_key.length = cpu_to_le32(key_len);
1373 ndis_key.index = cpu_to_le32(index);
1374 memcpy(&ndis_key.material, key, key_len);
1375
1376 if (index == priv->encr_tx_key_index) {
1377 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1378 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1379 RNDIS_WLAN_ALG_NONE);
1380 if (ret)
1381 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1382 ret);
1383 }
1384
1385 ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
1386 sizeof(ndis_key));
1387 if (ret != 0) {
1388 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1389 index + 1, ret);
1390 return ret;
1391 }
1392
1393 priv->encr_keys[index].len = key_len;
1394 priv->encr_keys[index].cipher = cipher;
1395 memcpy(&priv->encr_keys[index].material, key, key_len);
1396 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1397
1398 return 0;
1399 }
1400
1401 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1402 int index, const u8 *addr, const u8 *rx_seq,
1403 int seq_len, u32 cipher, __le32 flags)
1404 {
1405 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1406 struct ndis_80211_key ndis_key;
1407 bool is_addr_ok;
1408 int ret;
1409
1410 if (index < 0 || index >= 4) {
1411 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1412 __func__, index);
1413 return -EINVAL;
1414 }
1415 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1416 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1417 __func__, key_len);
1418 return -EINVAL;
1419 }
1420 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1421 if (!rx_seq || seq_len <= 0) {
1422 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1423 __func__);
1424 return -EINVAL;
1425 }
1426 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1427 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1428 return -EINVAL;
1429 }
1430 }
1431
1432 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1433 !is_broadcast_ether_addr(addr);
1434 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1435 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1436 __func__, addr);
1437 return -EINVAL;
1438 }
1439
1440 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1441 __func__, index,
1442 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1443 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1444 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1445
1446 memset(&ndis_key, 0, sizeof(ndis_key));
1447
1448 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1449 sizeof(ndis_key.material) + key_len);
1450 ndis_key.length = cpu_to_le32(key_len);
1451 ndis_key.index = cpu_to_le32(index) | flags;
1452
1453 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1454 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1455 * different order than NDIS spec, so swap the order here. */
1456 memcpy(ndis_key.material, key, 16);
1457 memcpy(ndis_key.material + 16, key + 24, 8);
1458 memcpy(ndis_key.material + 24, key + 16, 8);
1459 } else
1460 memcpy(ndis_key.material, key, key_len);
1461
1462 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1463 memcpy(ndis_key.rsc, rx_seq, seq_len);
1464
1465 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1466 /* pairwise key */
1467 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1468 } else {
1469 /* group key */
1470 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1471 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1472 else
1473 get_bssid(usbdev, ndis_key.bssid);
1474 }
1475
1476 ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
1477 le32_to_cpu(ndis_key.size));
1478 netdev_dbg(usbdev->net, "%s(): OID_802_11_ADD_KEY -> %08X\n",
1479 __func__, ret);
1480 if (ret != 0)
1481 return ret;
1482
1483 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1484 priv->encr_keys[index].len = key_len;
1485 priv->encr_keys[index].cipher = cipher;
1486 memcpy(&priv->encr_keys[index].material, key, key_len);
1487 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1488 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1489 else
1490 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1491
1492 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1493 priv->encr_tx_key_index = index;
1494
1495 return 0;
1496 }
1497
1498 static int restore_key(struct usbnet *usbdev, int key_idx)
1499 {
1500 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1501 struct rndis_wlan_encr_key key;
1502
1503 if (is_wpa_key(priv, key_idx))
1504 return 0;
1505
1506 key = priv->encr_keys[key_idx];
1507
1508 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1509
1510 if (key.len == 0)
1511 return 0;
1512
1513 return add_wep_key(usbdev, key.material, key.len, key_idx);
1514 }
1515
1516 static void restore_keys(struct usbnet *usbdev)
1517 {
1518 int i;
1519
1520 for (i = 0; i < 4; i++)
1521 restore_key(usbdev, i);
1522 }
1523
1524 static void clear_key(struct rndis_wlan_private *priv, int idx)
1525 {
1526 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1527 }
1528
1529 /* remove_key is for both wep and wpa */
1530 static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
1531 {
1532 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1533 struct ndis_80211_remove_key remove_key;
1534 __le32 keyindex;
1535 bool is_wpa;
1536 int ret;
1537
1538 if (priv->encr_keys[index].len == 0)
1539 return 0;
1540
1541 is_wpa = is_wpa_key(priv, index);
1542
1543 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1544 __func__, index, is_wpa ? "wpa" : "wep",
1545 priv->encr_keys[index].len);
1546
1547 clear_key(priv, index);
1548
1549 if (is_wpa) {
1550 remove_key.size = cpu_to_le32(sizeof(remove_key));
1551 remove_key.index = cpu_to_le32(index);
1552 if (bssid) {
1553 /* pairwise key */
1554 if (!is_broadcast_ether_addr(bssid))
1555 remove_key.index |=
1556 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1557 memcpy(remove_key.bssid, bssid,
1558 sizeof(remove_key.bssid));
1559 } else
1560 memset(remove_key.bssid, 0xff,
1561 sizeof(remove_key.bssid));
1562
1563 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
1564 sizeof(remove_key));
1565 if (ret != 0)
1566 return ret;
1567 } else {
1568 keyindex = cpu_to_le32(index);
1569 ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
1570 sizeof(keyindex));
1571 if (ret != 0) {
1572 netdev_warn(usbdev->net,
1573 "removing encryption key %d failed (%08X)\n",
1574 index, ret);
1575 return ret;
1576 }
1577 }
1578
1579 /* if it is transmit key, disable encryption */
1580 if (index == priv->encr_tx_key_index)
1581 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1582
1583 return 0;
1584 }
1585
1586 static void set_multicast_list(struct usbnet *usbdev)
1587 {
1588 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1589 struct netdev_hw_addr *ha;
1590 __le32 filter, basefilter;
1591 int ret;
1592 char *mc_addrs = NULL;
1593 int mc_count;
1594
1595 basefilter = filter = RNDIS_PACKET_TYPE_DIRECTED |
1596 RNDIS_PACKET_TYPE_BROADCAST;
1597
1598 if (usbdev->net->flags & IFF_PROMISC) {
1599 filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
1600 RNDIS_PACKET_TYPE_ALL_LOCAL;
1601 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1602 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1603 }
1604
1605 if (filter != basefilter)
1606 goto set_filter;
1607
1608 /*
1609 * mc_list should be accessed holding the lock, so copy addresses to
1610 * local buffer first.
1611 */
1612 netif_addr_lock_bh(usbdev->net);
1613 mc_count = netdev_mc_count(usbdev->net);
1614 if (mc_count > priv->multicast_size) {
1615 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1616 } else if (mc_count) {
1617 int i = 0;
1618
1619 mc_addrs = kmalloc(mc_count * ETH_ALEN, GFP_ATOMIC);
1620 if (!mc_addrs) {
1621 netdev_warn(usbdev->net,
1622 "couldn't alloc %d bytes of memory\n",
1623 mc_count * ETH_ALEN);
1624 netif_addr_unlock_bh(usbdev->net);
1625 return;
1626 }
1627
1628 netdev_for_each_mc_addr(ha, usbdev->net)
1629 memcpy(mc_addrs + i++ * ETH_ALEN,
1630 ha->addr, ETH_ALEN);
1631 }
1632 netif_addr_unlock_bh(usbdev->net);
1633
1634 if (filter != basefilter)
1635 goto set_filter;
1636
1637 if (mc_count) {
1638 ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, mc_addrs,
1639 mc_count * ETH_ALEN);
1640 kfree(mc_addrs);
1641 if (ret == 0)
1642 filter |= RNDIS_PACKET_TYPE_MULTICAST;
1643 else
1644 filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
1645
1646 netdev_dbg(usbdev->net, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1647 mc_count, priv->multicast_size, ret);
1648 }
1649
1650 set_filter:
1651 ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
1652 sizeof(filter));
1653 if (ret < 0) {
1654 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1655 le32_to_cpu(filter));
1656 }
1657
1658 netdev_dbg(usbdev->net, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1659 le32_to_cpu(filter), ret);
1660 }
1661
1662 #ifdef DEBUG
1663 static void debug_print_pmkids(struct usbnet *usbdev,
1664 struct ndis_80211_pmkid *pmkids,
1665 const char *func_str)
1666 {
1667 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1668 int i, len, count, max_pmkids, entry_len;
1669
1670 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1671 len = le32_to_cpu(pmkids->length);
1672 count = le32_to_cpu(pmkids->bssid_info_count);
1673
1674 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1675
1676 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1677 "%d)\n", func_str, count, len, entry_len);
1678
1679 if (count > max_pmkids)
1680 count = max_pmkids;
1681
1682 for (i = 0; i < count; i++) {
1683 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1684
1685 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1686 "pmkid: %08X:%08X:%08X:%08X\n",
1687 func_str, pmkids->bssid_info[i].bssid,
1688 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1689 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1690 }
1691 }
1692 #else
1693 static void debug_print_pmkids(struct usbnet *usbdev,
1694 struct ndis_80211_pmkid *pmkids,
1695 const char *func_str)
1696 {
1697 return;
1698 }
1699 #endif
1700
1701 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1702 {
1703 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1704 struct ndis_80211_pmkid *pmkids;
1705 int len, ret, max_pmkids;
1706
1707 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1708 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1709
1710 pmkids = kzalloc(len, GFP_KERNEL);
1711 if (!pmkids)
1712 return ERR_PTR(-ENOMEM);
1713
1714 pmkids->length = cpu_to_le32(len);
1715 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1716
1717 ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
1718 if (ret < 0) {
1719 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
1720 " -> %d\n", __func__, len, max_pmkids, ret);
1721
1722 kfree(pmkids);
1723 return ERR_PTR(ret);
1724 }
1725
1726 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1727 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1728
1729 debug_print_pmkids(usbdev, pmkids, __func__);
1730
1731 return pmkids;
1732 }
1733
1734 static int set_device_pmkids(struct usbnet *usbdev,
1735 struct ndis_80211_pmkid *pmkids)
1736 {
1737 int ret, len, num_pmkids;
1738
1739 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1740 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1741 pmkids->length = cpu_to_le32(len);
1742
1743 debug_print_pmkids(usbdev, pmkids, __func__);
1744
1745 ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
1746 le32_to_cpu(pmkids->length));
1747 if (ret < 0) {
1748 netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
1749 "\n", __func__, len, num_pmkids, ret);
1750 }
1751
1752 kfree(pmkids);
1753 return ret;
1754 }
1755
1756 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1757 struct ndis_80211_pmkid *pmkids,
1758 struct cfg80211_pmksa *pmksa,
1759 int max_pmkids)
1760 {
1761 int i, len, count, newlen, err;
1762
1763 len = le32_to_cpu(pmkids->length);
1764 count = le32_to_cpu(pmkids->bssid_info_count);
1765
1766 if (count > max_pmkids)
1767 count = max_pmkids;
1768
1769 for (i = 0; i < count; i++)
1770 if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
1771 pmksa->bssid))
1772 break;
1773
1774 /* pmkid not found */
1775 if (i == count) {
1776 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1777 __func__, pmksa->bssid);
1778 err = -ENOENT;
1779 goto error;
1780 }
1781
1782 for (; i + 1 < count; i++)
1783 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1784
1785 count--;
1786 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1787
1788 pmkids->length = cpu_to_le32(newlen);
1789 pmkids->bssid_info_count = cpu_to_le32(count);
1790
1791 return pmkids;
1792 error:
1793 kfree(pmkids);
1794 return ERR_PTR(err);
1795 }
1796
1797 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1798 struct ndis_80211_pmkid *pmkids,
1799 struct cfg80211_pmksa *pmksa,
1800 int max_pmkids)
1801 {
1802 int i, err, len, count, newlen;
1803
1804 len = le32_to_cpu(pmkids->length);
1805 count = le32_to_cpu(pmkids->bssid_info_count);
1806
1807 if (count > max_pmkids)
1808 count = max_pmkids;
1809
1810 /* update with new pmkid */
1811 for (i = 0; i < count; i++) {
1812 if (compare_ether_addr(pmkids->bssid_info[i].bssid,
1813 pmksa->bssid))
1814 continue;
1815
1816 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1817 WLAN_PMKID_LEN);
1818
1819 return pmkids;
1820 }
1821
1822 /* out of space, return error */
1823 if (i == max_pmkids) {
1824 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1825 err = -ENOSPC;
1826 goto error;
1827 }
1828
1829 /* add new pmkid */
1830 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1831
1832 pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1833 if (!pmkids) {
1834 err = -ENOMEM;
1835 goto error;
1836 }
1837
1838 pmkids->length = cpu_to_le32(newlen);
1839 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1840
1841 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1842 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1843
1844 return pmkids;
1845 error:
1846 kfree(pmkids);
1847 return ERR_PTR(err);
1848 }
1849
1850 /*
1851 * cfg80211 ops
1852 */
1853 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1854 struct net_device *dev,
1855 enum nl80211_iftype type, u32 *flags,
1856 struct vif_params *params)
1857 {
1858 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1859 struct usbnet *usbdev = priv->usbdev;
1860 int mode;
1861
1862 switch (type) {
1863 case NL80211_IFTYPE_ADHOC:
1864 mode = NDIS_80211_INFRA_ADHOC;
1865 break;
1866 case NL80211_IFTYPE_STATION:
1867 mode = NDIS_80211_INFRA_INFRA;
1868 break;
1869 default:
1870 return -EINVAL;
1871 }
1872
1873 priv->wdev.iftype = type;
1874
1875 return set_infra_mode(usbdev, mode);
1876 }
1877
1878 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1879 {
1880 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1881 struct usbnet *usbdev = priv->usbdev;
1882 int err;
1883
1884 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1885 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1886 if (err < 0)
1887 return err;
1888 }
1889
1890 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1891 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1892 if (err < 0)
1893 return err;
1894 }
1895
1896 return 0;
1897 }
1898
1899 static int rndis_set_tx_power(struct wiphy *wiphy,
1900 enum nl80211_tx_power_setting type,
1901 int mbm)
1902 {
1903 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1904 struct usbnet *usbdev = priv->usbdev;
1905
1906 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1907 __func__, type, mbm);
1908
1909 if (mbm < 0 || (mbm % 100))
1910 return -ENOTSUPP;
1911
1912 /* Device doesn't support changing txpower after initialization, only
1913 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1914 * currently used.
1915 */
1916 if (type == NL80211_TX_POWER_AUTOMATIC ||
1917 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1918 if (!priv->radio_on)
1919 disassociate(usbdev, true); /* turn on radio */
1920
1921 return 0;
1922 }
1923
1924 return -ENOTSUPP;
1925 }
1926
1927 static int rndis_get_tx_power(struct wiphy *wiphy, int *dbm)
1928 {
1929 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1930 struct usbnet *usbdev = priv->usbdev;
1931
1932 *dbm = get_bcm4320_power_dbm(priv);
1933
1934 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1935
1936 return 0;
1937 }
1938
1939 #define SCAN_DELAY_JIFFIES (6 * HZ)
1940 static int rndis_scan(struct wiphy *wiphy, struct net_device *dev,
1941 struct cfg80211_scan_request *request)
1942 {
1943 struct usbnet *usbdev = netdev_priv(dev);
1944 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1945 int ret;
1946 int delay = SCAN_DELAY_JIFFIES;
1947
1948 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1949
1950 /* Get current bssid list from device before new scan, as new scan
1951 * clears internal bssid list.
1952 */
1953 rndis_check_bssid_list(usbdev, NULL, NULL);
1954
1955 if (!request)
1956 return -EINVAL;
1957
1958 if (priv->scan_request && priv->scan_request != request)
1959 return -EBUSY;
1960
1961 priv->scan_request = request;
1962
1963 ret = rndis_start_bssid_list_scan(usbdev);
1964 if (ret == 0) {
1965 if (priv->device_type == RNDIS_BCM4320A)
1966 delay = HZ;
1967
1968 /* Wait before retrieving scan results from device */
1969 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1970 }
1971
1972 return ret;
1973 }
1974
1975 static struct cfg80211_bss *rndis_bss_info_update(struct usbnet *usbdev,
1976 struct ndis_80211_bssid_ex *bssid)
1977 {
1978 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1979 struct ieee80211_channel *channel;
1980 s32 signal;
1981 u64 timestamp;
1982 u16 capability;
1983 u16 beacon_interval;
1984 struct ndis_80211_fixed_ies *fixed;
1985 int ie_len, bssid_len;
1986 u8 *ie;
1987
1988 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1989 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1990
1991 /* parse bssid structure */
1992 bssid_len = le32_to_cpu(bssid->length);
1993
1994 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
1995 sizeof(struct ndis_80211_fixed_ies))
1996 return NULL;
1997
1998 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
1999
2000 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2001 ie_len = min(bssid_len - (int)sizeof(*bssid),
2002 (int)le32_to_cpu(bssid->ie_length));
2003 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2004 if (ie_len < 0)
2005 return NULL;
2006
2007 /* extract data for cfg80211_inform_bss */
2008 channel = ieee80211_get_channel(priv->wdev.wiphy,
2009 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2010 if (!channel)
2011 return NULL;
2012
2013 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2014 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2015 capability = le16_to_cpu(fixed->capabilities);
2016 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2017
2018 return cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2019 timestamp, capability, beacon_interval, ie, ie_len, signal,
2020 GFP_KERNEL);
2021 }
2022
2023 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2024 struct ndis_80211_bssid_ex *bssid,
2025 int *bssid_len, void *buf, int len)
2026 {
2027 void *buf_end, *bssid_end;
2028
2029 buf_end = (char *)buf + len;
2030 bssid_end = (char *)bssid + *bssid_len;
2031
2032 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2033 *bssid_len = 0;
2034 return NULL;
2035 } else {
2036 bssid = (void *)((char *)bssid + *bssid_len);
2037 *bssid_len = le32_to_cpu(bssid->length);
2038 return bssid;
2039 }
2040 }
2041
2042 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2043 int bssid_len, void *buf, int len)
2044 {
2045 void *buf_end, *bssid_end;
2046
2047 if (!bssid || bssid_len <= 0 || bssid_len > len)
2048 return false;
2049
2050 buf_end = (char *)buf + len;
2051 bssid_end = (char *)bssid + bssid_len;
2052
2053 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2054 }
2055
2056 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2057 bool *matched)
2058 {
2059 void *buf = NULL;
2060 struct ndis_80211_bssid_list_ex *bssid_list;
2061 struct ndis_80211_bssid_ex *bssid;
2062 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2063
2064 netdev_dbg(usbdev->net, "%s()\n", __func__);
2065
2066 len = CONTROL_BUFFER_SIZE;
2067 resize_buf:
2068 buf = kzalloc(len, GFP_KERNEL);
2069 if (!buf) {
2070 ret = -ENOMEM;
2071 goto out;
2072 }
2073
2074 /* BSSID-list might have got bigger last time we checked, keep
2075 * resizing until it won't get any bigger.
2076 */
2077 new_len = len;
2078 ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &new_len);
2079 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2080 goto out;
2081
2082 if (new_len > len) {
2083 len = new_len;
2084 kfree(buf);
2085 goto resize_buf;
2086 }
2087
2088 len = new_len;
2089
2090 bssid_list = buf;
2091 count = le32_to_cpu(bssid_list->num_items);
2092 real_count = 0;
2093 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2094
2095 bssid_len = 0;
2096 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2097
2098 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2099 * received 'num_items' and walking through full bssid buffer instead.
2100 */
2101 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2102 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2103 matched) {
2104 if (compare_ether_addr(bssid->mac, match_bssid))
2105 *matched = true;
2106 }
2107
2108 real_count++;
2109 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2110 }
2111
2112 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2113 " %d\n", __func__, count, real_count);
2114
2115 out:
2116 kfree(buf);
2117 return ret;
2118 }
2119
2120 static void rndis_get_scan_results(struct work_struct *work)
2121 {
2122 struct rndis_wlan_private *priv =
2123 container_of(work, struct rndis_wlan_private, scan_work.work);
2124 struct usbnet *usbdev = priv->usbdev;
2125 int ret;
2126
2127 netdev_dbg(usbdev->net, "get_scan_results\n");
2128
2129 if (!priv->scan_request)
2130 return;
2131
2132 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2133
2134 cfg80211_scan_done(priv->scan_request, ret < 0);
2135
2136 priv->scan_request = NULL;
2137 }
2138
2139 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2140 struct cfg80211_connect_params *sme)
2141 {
2142 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2143 struct usbnet *usbdev = priv->usbdev;
2144 struct ieee80211_channel *channel = sme->channel;
2145 struct ndis_80211_ssid ssid;
2146 int pairwise = RNDIS_WLAN_ALG_NONE;
2147 int groupwise = RNDIS_WLAN_ALG_NONE;
2148 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2149 int length, i, ret, chan = -1;
2150
2151 if (channel)
2152 chan = ieee80211_frequency_to_channel(channel->center_freq);
2153
2154 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2155 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2156 pairwise |=
2157 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2158
2159 if (sme->crypto.n_ciphers_pairwise > 0 &&
2160 pairwise == RNDIS_WLAN_ALG_NONE) {
2161 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2162 return -ENOTSUPP;
2163 }
2164
2165 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2166 keymgmt |=
2167 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2168
2169 if (sme->crypto.n_akm_suites > 0 &&
2170 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2171 netdev_err(usbdev->net, "Invalid keymgmt\n");
2172 return -ENOTSUPP;
2173 }
2174
2175 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2176 sme->ssid, sme->bssid, chan,
2177 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2178 groupwise, pairwise, keymgmt);
2179
2180 if (is_associated(usbdev))
2181 disassociate(usbdev, false);
2182
2183 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2184 if (ret < 0) {
2185 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2186 ret);
2187 goto err_turn_radio_on;
2188 }
2189
2190 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2191 keymgmt);
2192 if (ret < 0) {
2193 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2194 ret);
2195 goto err_turn_radio_on;
2196 }
2197
2198 set_priv_filter(usbdev);
2199
2200 ret = set_encr_mode(usbdev, pairwise, groupwise);
2201 if (ret < 0) {
2202 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2203 ret);
2204 goto err_turn_radio_on;
2205 }
2206
2207 if (channel) {
2208 ret = set_channel(usbdev, chan);
2209 if (ret < 0) {
2210 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2211 ret);
2212 goto err_turn_radio_on;
2213 }
2214 }
2215
2216 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2217 priv->encr_tx_key_index = sme->key_idx;
2218 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2219 if (ret < 0) {
2220 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2221 ret, sme->key_len, sme->key_idx);
2222 goto err_turn_radio_on;
2223 }
2224 }
2225
2226 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2227 !is_broadcast_ether_addr(sme->bssid)) {
2228 ret = set_bssid(usbdev, sme->bssid);
2229 if (ret < 0) {
2230 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2231 ret);
2232 goto err_turn_radio_on;
2233 }
2234 } else
2235 clear_bssid(usbdev);
2236
2237 length = sme->ssid_len;
2238 if (length > NDIS_802_11_LENGTH_SSID)
2239 length = NDIS_802_11_LENGTH_SSID;
2240
2241 memset(&ssid, 0, sizeof(ssid));
2242 ssid.length = cpu_to_le32(length);
2243 memcpy(ssid.essid, sme->ssid, length);
2244
2245 /* Pause and purge rx queue, so we don't pass packets before
2246 * 'media connect'-indication.
2247 */
2248 usbnet_pause_rx(usbdev);
2249 usbnet_purge_paused_rxq(usbdev);
2250
2251 ret = set_essid(usbdev, &ssid);
2252 if (ret < 0)
2253 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2254 return ret;
2255
2256 err_turn_radio_on:
2257 disassociate(usbdev, true);
2258
2259 return ret;
2260 }
2261
2262 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2263 u16 reason_code)
2264 {
2265 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2266 struct usbnet *usbdev = priv->usbdev;
2267
2268 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2269
2270 priv->connected = false;
2271 memset(priv->bssid, 0, ETH_ALEN);
2272
2273 return deauthenticate(usbdev);
2274 }
2275
2276 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2277 struct cfg80211_ibss_params *params)
2278 {
2279 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2280 struct usbnet *usbdev = priv->usbdev;
2281 struct ieee80211_channel *channel = params->channel;
2282 struct ndis_80211_ssid ssid;
2283 enum nl80211_auth_type auth_type;
2284 int ret, alg, length, chan = -1;
2285
2286 if (channel)
2287 chan = ieee80211_frequency_to_channel(channel->center_freq);
2288
2289 /* TODO: How to handle ad-hoc encryption?
2290 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2291 * pre-shared for encryption (open/shared/wpa), is key set before
2292 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2293 */
2294 if (params->privacy) {
2295 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2296 alg = RNDIS_WLAN_ALG_WEP;
2297 } else {
2298 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2299 alg = RNDIS_WLAN_ALG_NONE;
2300 }
2301
2302 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2303 params->ssid, params->bssid, chan, params->privacy);
2304
2305 if (is_associated(usbdev))
2306 disassociate(usbdev, false);
2307
2308 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2309 if (ret < 0) {
2310 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2311 ret);
2312 goto err_turn_radio_on;
2313 }
2314
2315 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2316 if (ret < 0) {
2317 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2318 ret);
2319 goto err_turn_radio_on;
2320 }
2321
2322 set_priv_filter(usbdev);
2323
2324 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2325 if (ret < 0) {
2326 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2327 ret);
2328 goto err_turn_radio_on;
2329 }
2330
2331 if (channel) {
2332 ret = set_channel(usbdev, chan);
2333 if (ret < 0) {
2334 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2335 ret);
2336 goto err_turn_radio_on;
2337 }
2338 }
2339
2340 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2341 !is_broadcast_ether_addr(params->bssid)) {
2342 ret = set_bssid(usbdev, params->bssid);
2343 if (ret < 0) {
2344 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2345 ret);
2346 goto err_turn_radio_on;
2347 }
2348 } else
2349 clear_bssid(usbdev);
2350
2351 length = params->ssid_len;
2352 if (length > NDIS_802_11_LENGTH_SSID)
2353 length = NDIS_802_11_LENGTH_SSID;
2354
2355 memset(&ssid, 0, sizeof(ssid));
2356 ssid.length = cpu_to_le32(length);
2357 memcpy(ssid.essid, params->ssid, length);
2358
2359 /* Don't need to pause rx queue for ad-hoc. */
2360 usbnet_purge_paused_rxq(usbdev);
2361 usbnet_resume_rx(usbdev);
2362
2363 ret = set_essid(usbdev, &ssid);
2364 if (ret < 0)
2365 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2366 ret);
2367 return ret;
2368
2369 err_turn_radio_on:
2370 disassociate(usbdev, true);
2371
2372 return ret;
2373 }
2374
2375 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2376 {
2377 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2378 struct usbnet *usbdev = priv->usbdev;
2379
2380 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2381
2382 priv->connected = false;
2383 memset(priv->bssid, 0, ETH_ALEN);
2384
2385 return deauthenticate(usbdev);
2386 }
2387
2388 static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev,
2389 struct ieee80211_channel *chan, enum nl80211_channel_type channel_type)
2390 {
2391 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2392 struct usbnet *usbdev = priv->usbdev;
2393
2394 return set_channel(usbdev,
2395 ieee80211_frequency_to_channel(chan->center_freq));
2396 }
2397
2398 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2399 u8 key_index, bool pairwise, const u8 *mac_addr,
2400 struct key_params *params)
2401 {
2402 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2403 struct usbnet *usbdev = priv->usbdev;
2404 __le32 flags;
2405
2406 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2407 __func__, key_index, mac_addr, params->cipher);
2408
2409 switch (params->cipher) {
2410 case WLAN_CIPHER_SUITE_WEP40:
2411 case WLAN_CIPHER_SUITE_WEP104:
2412 return add_wep_key(usbdev, params->key, params->key_len,
2413 key_index);
2414 case WLAN_CIPHER_SUITE_TKIP:
2415 case WLAN_CIPHER_SUITE_CCMP:
2416 flags = 0;
2417
2418 if (params->seq && params->seq_len > 0)
2419 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2420 if (mac_addr)
2421 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2422 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2423
2424 return add_wpa_key(usbdev, params->key, params->key_len,
2425 key_index, mac_addr, params->seq,
2426 params->seq_len, params->cipher, flags);
2427 default:
2428 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2429 __func__, params->cipher);
2430 return -ENOTSUPP;
2431 }
2432 }
2433
2434 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2435 u8 key_index, bool pairwise, const u8 *mac_addr)
2436 {
2437 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2438 struct usbnet *usbdev = priv->usbdev;
2439
2440 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2441
2442 return remove_key(usbdev, key_index, mac_addr);
2443 }
2444
2445 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2446 u8 key_index, bool unicast, bool multicast)
2447 {
2448 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2449 struct usbnet *usbdev = priv->usbdev;
2450 struct rndis_wlan_encr_key key;
2451
2452 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2453
2454 priv->encr_tx_key_index = key_index;
2455
2456 if (is_wpa_key(priv, key_index))
2457 return 0;
2458
2459 key = priv->encr_keys[key_index];
2460
2461 return add_wep_key(usbdev, key.material, key.len, key_index);
2462 }
2463
2464 static void rndis_fill_station_info(struct usbnet *usbdev,
2465 struct station_info *sinfo)
2466 {
2467 __le32 linkspeed, rssi;
2468 int ret, len;
2469
2470 memset(sinfo, 0, sizeof(*sinfo));
2471
2472 len = sizeof(linkspeed);
2473 ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &linkspeed, &len);
2474 if (ret == 0) {
2475 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2476 sinfo->filled |= STATION_INFO_TX_BITRATE;
2477 }
2478
2479 len = sizeof(rssi);
2480 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2481 if (ret == 0) {
2482 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2483 sinfo->filled |= STATION_INFO_SIGNAL;
2484 }
2485 }
2486
2487 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2488 u8 *mac, struct station_info *sinfo)
2489 {
2490 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2491 struct usbnet *usbdev = priv->usbdev;
2492
2493 if (compare_ether_addr(priv->bssid, mac))
2494 return -ENOENT;
2495
2496 rndis_fill_station_info(usbdev, sinfo);
2497
2498 return 0;
2499 }
2500
2501 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2502 int idx, u8 *mac, struct station_info *sinfo)
2503 {
2504 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2505 struct usbnet *usbdev = priv->usbdev;
2506
2507 if (idx != 0)
2508 return -ENOENT;
2509
2510 memcpy(mac, priv->bssid, ETH_ALEN);
2511
2512 rndis_fill_station_info(usbdev, sinfo);
2513
2514 return 0;
2515 }
2516
2517 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2518 struct cfg80211_pmksa *pmksa)
2519 {
2520 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2521 struct usbnet *usbdev = priv->usbdev;
2522 struct ndis_80211_pmkid *pmkids;
2523 u32 *tmp = (u32 *)pmksa->pmkid;
2524
2525 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2526 pmksa->bssid,
2527 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2528 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2529
2530 pmkids = get_device_pmkids(usbdev);
2531 if (IS_ERR(pmkids)) {
2532 /* couldn't read PMKID cache from device */
2533 return PTR_ERR(pmkids);
2534 }
2535
2536 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2537 if (IS_ERR(pmkids)) {
2538 /* not found, list full, etc */
2539 return PTR_ERR(pmkids);
2540 }
2541
2542 return set_device_pmkids(usbdev, pmkids);
2543 }
2544
2545 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2546 struct cfg80211_pmksa *pmksa)
2547 {
2548 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2549 struct usbnet *usbdev = priv->usbdev;
2550 struct ndis_80211_pmkid *pmkids;
2551 u32 *tmp = (u32 *)pmksa->pmkid;
2552
2553 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2554 pmksa->bssid,
2555 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2556 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2557
2558 pmkids = get_device_pmkids(usbdev);
2559 if (IS_ERR(pmkids)) {
2560 /* Couldn't read PMKID cache from device */
2561 return PTR_ERR(pmkids);
2562 }
2563
2564 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2565 if (IS_ERR(pmkids)) {
2566 /* not found, etc */
2567 return PTR_ERR(pmkids);
2568 }
2569
2570 return set_device_pmkids(usbdev, pmkids);
2571 }
2572
2573 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2574 {
2575 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2576 struct usbnet *usbdev = priv->usbdev;
2577 struct ndis_80211_pmkid pmkid;
2578
2579 netdev_dbg(usbdev->net, "%s()\n", __func__);
2580
2581 memset(&pmkid, 0, sizeof(pmkid));
2582
2583 pmkid.length = cpu_to_le32(sizeof(pmkid));
2584 pmkid.bssid_info_count = cpu_to_le32(0);
2585
2586 return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
2587 }
2588
2589 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2590 bool enabled, int timeout)
2591 {
2592 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2593 struct usbnet *usbdev = priv->usbdev;
2594 int power_mode;
2595 __le32 mode;
2596 int ret;
2597
2598 if (priv->device_type != RNDIS_BCM4320B)
2599 return -ENOTSUPP;
2600
2601 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2602 enabled ? "enabled" : "disabled",
2603 timeout);
2604
2605 if (enabled)
2606 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2607 else
2608 power_mode = NDIS_80211_POWER_MODE_CAM;
2609
2610 if (power_mode == priv->power_mode)
2611 return 0;
2612
2613 priv->power_mode = power_mode;
2614
2615 mode = cpu_to_le32(power_mode);
2616 ret = rndis_set_oid(usbdev, OID_802_11_POWER_MODE, &mode, sizeof(mode));
2617
2618 netdev_dbg(usbdev->net, "%s(): OID_802_11_POWER_MODE -> %d\n",
2619 __func__, ret);
2620
2621 return ret;
2622 }
2623
2624 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2625 struct net_device *dev,
2626 s32 rssi_thold, u32 rssi_hyst)
2627 {
2628 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2629
2630 priv->cqm_rssi_thold = rssi_thold;
2631 priv->cqm_rssi_hyst = rssi_hyst;
2632 priv->last_cqm_event_rssi = 0;
2633
2634 return 0;
2635 }
2636
2637 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2638 struct ndis_80211_assoc_info *info)
2639 {
2640 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2641 struct ieee80211_channel *channel;
2642 struct ndis_80211_conf config;
2643 struct ndis_80211_ssid ssid;
2644 s32 signal;
2645 u64 timestamp;
2646 u16 capability;
2647 u16 beacon_interval;
2648 __le32 rssi;
2649 u8 ie_buf[34];
2650 int len, ret, ie_len;
2651
2652 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2653 len = sizeof(rssi);
2654 rssi = 0;
2655 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
2656 signal = level_to_qual(le32_to_cpu(rssi));
2657
2658 netdev_dbg(usbdev->net, "%s(): OID_802_11_RSSI -> %d, "
2659 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2660 level_to_qual(le32_to_cpu(rssi)));
2661
2662 /* Get AP capabilities */
2663 if (info) {
2664 capability = le16_to_cpu(info->resp_ie.capa);
2665 } else {
2666 /* Set atleast ESS/IBSS capability */
2667 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2668 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2669 }
2670
2671 /* Get channel and beacon interval */
2672 len = sizeof(config);
2673 ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
2674 netdev_dbg(usbdev->net, "%s(): OID_802_11_CONFIGURATION -> %d\n",
2675 __func__, ret);
2676 if (ret >= 0) {
2677 beacon_interval = le16_to_cpu(config.beacon_period);
2678 channel = ieee80211_get_channel(priv->wdev.wiphy,
2679 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
2680 if (!channel) {
2681 netdev_warn(usbdev->net, "%s(): could not get channel."
2682 "\n", __func__);
2683 return;
2684 }
2685 } else {
2686 netdev_warn(usbdev->net, "%s(): could not get configuration.\n",
2687 __func__);
2688 return;
2689 }
2690
2691 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2692 len = sizeof(ssid);
2693 memset(&ssid, 0, sizeof(ssid));
2694 ret = rndis_query_oid(usbdev, OID_802_11_SSID, &ssid, &len);
2695 netdev_dbg(usbdev->net, "%s(): OID_802_11_SSID -> %d, len: %d, ssid: "
2696 "'%.32s'\n", __func__, ret,
2697 le32_to_cpu(ssid.length), ssid.essid);
2698
2699 if (le32_to_cpu(ssid.length) > 32)
2700 ssid.length = cpu_to_le32(32);
2701
2702 ie_buf[0] = WLAN_EID_SSID;
2703 ie_buf[1] = le32_to_cpu(ssid.length);
2704 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2705
2706 ie_len = le32_to_cpu(ssid.length) + 2;
2707
2708 /* no tsf */
2709 timestamp = 0;
2710
2711 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2712 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2713 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2714 bssid, (u32)timestamp, capability, beacon_interval, ie_len,
2715 ssid.essid, signal);
2716
2717 cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2718 timestamp, capability, beacon_interval, ie_buf, ie_len,
2719 signal, GFP_KERNEL);
2720 }
2721
2722 /*
2723 * workers, indication handlers, device poller
2724 */
2725 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2726 {
2727 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2728 struct ndis_80211_assoc_info *info = NULL;
2729 u8 bssid[ETH_ALEN];
2730 int resp_ie_len, req_ie_len;
2731 u8 *req_ie, *resp_ie;
2732 int ret, offset;
2733 bool roamed = false;
2734 bool match_bss;
2735
2736 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2737 /* received media connect indication while connected, either
2738 * device reassociated with same AP or roamed to new. */
2739 roamed = true;
2740 }
2741
2742 req_ie_len = 0;
2743 resp_ie_len = 0;
2744 req_ie = NULL;
2745 resp_ie = NULL;
2746
2747 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2748 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2749 if (!info) {
2750 /* No memory? Try resume work later */
2751 set_bit(WORK_LINK_UP, &priv->work_pending);
2752 queue_work(priv->workqueue, &priv->work);
2753 return;
2754 }
2755
2756 /* Get association info IEs from device. */
2757 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2758 if (!ret) {
2759 req_ie_len = le32_to_cpu(info->req_ie_length);
2760 if (req_ie_len > 0) {
2761 offset = le32_to_cpu(info->offset_req_ies);
2762
2763 if (offset > CONTROL_BUFFER_SIZE)
2764 offset = CONTROL_BUFFER_SIZE;
2765
2766 req_ie = (u8 *)info + offset;
2767
2768 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2769 req_ie_len =
2770 CONTROL_BUFFER_SIZE - offset;
2771 }
2772
2773 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2774 if (resp_ie_len > 0) {
2775 offset = le32_to_cpu(info->offset_resp_ies);
2776
2777 if (offset > CONTROL_BUFFER_SIZE)
2778 offset = CONTROL_BUFFER_SIZE;
2779
2780 resp_ie = (u8 *)info + offset;
2781
2782 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2783 resp_ie_len =
2784 CONTROL_BUFFER_SIZE - offset;
2785 }
2786 } else {
2787 /* Since rndis_wlan_craft_connected_bss() might use info
2788 * later and expects info to contain valid data if
2789 * non-null, free info and set NULL here.
2790 */
2791 kfree(info);
2792 info = NULL;
2793 }
2794 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2795 return;
2796
2797 ret = get_bssid(usbdev, bssid);
2798 if (ret < 0)
2799 memset(bssid, 0, sizeof(bssid));
2800
2801 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2802 bssid, roamed ? " roamed" : "");
2803
2804 /* Internal bss list in device should contain at least the currently
2805 * connected bss and we can get it to cfg80211 with
2806 * rndis_check_bssid_list().
2807 *
2808 * NDIS spec says: "If the device is associated, but the associated
2809 * BSSID is not in its BSSID scan list, then the driver must add an
2810 * entry for the BSSID at the end of the data that it returns in
2811 * response to query of OID_802_11_BSSID_LIST."
2812 *
2813 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2814 */
2815 match_bss = false;
2816 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2817
2818 if (!is_zero_ether_addr(bssid) && !match_bss) {
2819 /* Couldn't get bss from device, we need to manually craft bss
2820 * for cfg80211.
2821 */
2822 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2823 }
2824
2825 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2826 if (!roamed)
2827 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2828 req_ie_len, resp_ie,
2829 resp_ie_len, 0, GFP_KERNEL);
2830 else
2831 cfg80211_roamed(usbdev->net, NULL, bssid,
2832 req_ie, req_ie_len,
2833 resp_ie, resp_ie_len, GFP_KERNEL);
2834 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2835 cfg80211_ibss_joined(usbdev->net, bssid, GFP_KERNEL);
2836
2837 if (info != NULL)
2838 kfree(info);
2839
2840 priv->connected = true;
2841 memcpy(priv->bssid, bssid, ETH_ALEN);
2842
2843 usbnet_resume_rx(usbdev);
2844 netif_carrier_on(usbdev->net);
2845 }
2846
2847 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2848 {
2849 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2850
2851 if (priv->connected) {
2852 priv->connected = false;
2853 memset(priv->bssid, 0, ETH_ALEN);
2854
2855 deauthenticate(usbdev);
2856
2857 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2858 }
2859
2860 netif_carrier_off(usbdev->net);
2861 }
2862
2863 static void rndis_wlan_worker(struct work_struct *work)
2864 {
2865 struct rndis_wlan_private *priv =
2866 container_of(work, struct rndis_wlan_private, work);
2867 struct usbnet *usbdev = priv->usbdev;
2868
2869 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2870 rndis_wlan_do_link_up_work(usbdev);
2871
2872 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2873 rndis_wlan_do_link_down_work(usbdev);
2874
2875 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2876 set_multicast_list(usbdev);
2877 }
2878
2879 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2880 {
2881 struct usbnet *usbdev = netdev_priv(dev);
2882 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2883
2884 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2885 return;
2886
2887 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2888 queue_work(priv->workqueue, &priv->work);
2889 }
2890
2891 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2892 struct ndis_80211_status_indication *indication,
2893 int len)
2894 {
2895 u8 *buf;
2896 const char *type;
2897 int flags, buflen, key_id;
2898 bool pairwise_error, group_error;
2899 struct ndis_80211_auth_request *auth_req;
2900 enum nl80211_key_type key_type;
2901
2902 /* must have at least one array entry */
2903 if (len < offsetof(struct ndis_80211_status_indication, u) +
2904 sizeof(struct ndis_80211_auth_request)) {
2905 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2906 len);
2907 return;
2908 }
2909
2910 buf = (void *)&indication->u.auth_request[0];
2911 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2912
2913 while (buflen >= sizeof(*auth_req)) {
2914 auth_req = (void *)buf;
2915 type = "unknown";
2916 flags = le32_to_cpu(auth_req->flags);
2917 pairwise_error = false;
2918 group_error = false;
2919
2920 if (flags & 0x1)
2921 type = "reauth request";
2922 if (flags & 0x2)
2923 type = "key update request";
2924 if (flags & 0x6) {
2925 pairwise_error = true;
2926 type = "pairwise_error";
2927 }
2928 if (flags & 0xe) {
2929 group_error = true;
2930 type = "group_error";
2931 }
2932
2933 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2934 type, le32_to_cpu(auth_req->flags));
2935
2936 if (pairwise_error) {
2937 key_type = NL80211_KEYTYPE_PAIRWISE;
2938 key_id = -1;
2939
2940 cfg80211_michael_mic_failure(usbdev->net,
2941 auth_req->bssid,
2942 key_type, key_id, NULL,
2943 GFP_KERNEL);
2944 }
2945
2946 if (group_error) {
2947 key_type = NL80211_KEYTYPE_GROUP;
2948 key_id = -1;
2949
2950 cfg80211_michael_mic_failure(usbdev->net,
2951 auth_req->bssid,
2952 key_type, key_id, NULL,
2953 GFP_KERNEL);
2954 }
2955
2956 buflen -= le32_to_cpu(auth_req->length);
2957 buf += le32_to_cpu(auth_req->length);
2958 }
2959 }
2960
2961 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2962 struct ndis_80211_status_indication *indication,
2963 int len)
2964 {
2965 struct ndis_80211_pmkid_cand_list *cand_list;
2966 int list_len, expected_len, i;
2967
2968 if (len < offsetof(struct ndis_80211_status_indication, u) +
2969 sizeof(struct ndis_80211_pmkid_cand_list)) {
2970 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2971 len);
2972 return;
2973 }
2974
2975 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2976 sizeof(struct ndis_80211_pmkid_candidate);
2977 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2978 offsetof(struct ndis_80211_status_indication, u);
2979
2980 if (len < expected_len) {
2981 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2982 len, expected_len);
2983 return;
2984 }
2985
2986 cand_list = &indication->u.cand_list;
2987
2988 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2989 le32_to_cpu(cand_list->version),
2990 le32_to_cpu(cand_list->num_candidates));
2991
2992 if (le32_to_cpu(cand_list->version) != 1)
2993 return;
2994
2995 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
2996 struct ndis_80211_pmkid_candidate *cand =
2997 &cand_list->candidate_list[i];
2998
2999 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, bssid: %pM\n",
3000 i, le32_to_cpu(cand->flags), cand->bssid);
3001
3002 #if 0
3003 struct iw_pmkid_cand pcand;
3004 union iwreq_data wrqu;
3005
3006 memset(&pcand, 0, sizeof(pcand));
3007 if (le32_to_cpu(cand->flags) & 0x01)
3008 pcand.flags |= IW_PMKID_CAND_PREAUTH;
3009 pcand.index = i;
3010 memcpy(pcand.bssid.sa_data, cand->bssid, ETH_ALEN);
3011
3012 memset(&wrqu, 0, sizeof(wrqu));
3013 wrqu.data.length = sizeof(pcand);
3014 wireless_send_event(usbdev->net, IWEVPMKIDCAND, &wrqu,
3015 (u8 *)&pcand);
3016 #endif
3017 }
3018 }
3019
3020 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3021 struct rndis_indicate *msg, int buflen)
3022 {
3023 struct ndis_80211_status_indication *indication;
3024 int len, offset;
3025
3026 offset = offsetof(struct rndis_indicate, status) +
3027 le32_to_cpu(msg->offset);
3028 len = le32_to_cpu(msg->length);
3029
3030 if (len < 8) {
3031 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3032 len);
3033 return;
3034 }
3035
3036 if (offset + len > buflen) {
3037 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3038 offset + len, buflen);
3039 return;
3040 }
3041
3042 indication = (void *)((u8 *)msg + offset);
3043
3044 switch (le32_to_cpu(indication->status_type)) {
3045 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3046 netdev_info(usbdev->net, "radio state indication: %i\n",
3047 le32_to_cpu(indication->u.radio_status));
3048 return;
3049
3050 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3051 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3052 le32_to_cpu(indication->u.media_stream_mode));
3053 return;
3054
3055 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3056 rndis_wlan_auth_indication(usbdev, indication, len);
3057 return;
3058
3059 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3060 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3061 return;
3062
3063 default:
3064 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3065 le32_to_cpu(indication->status_type));
3066 }
3067 }
3068
3069 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3070 {
3071 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3072 struct rndis_indicate *msg = ind;
3073
3074 switch (msg->status) {
3075 case RNDIS_STATUS_MEDIA_CONNECT:
3076 if (priv->current_command_oid == OID_802_11_ADD_KEY) {
3077 /* OID_802_11_ADD_KEY causes sometimes extra
3078 * "media connect" indications which confuses driver
3079 * and userspace to think that device is
3080 * roaming/reassociating when it isn't.
3081 */
3082 netdev_dbg(usbdev->net, "ignored OID_802_11_ADD_KEY triggered 'media connect'\n");
3083 return;
3084 }
3085
3086 usbnet_pause_rx(usbdev);
3087
3088 netdev_info(usbdev->net, "media connect\n");
3089
3090 /* queue work to avoid recursive calls into rndis_command */
3091 set_bit(WORK_LINK_UP, &priv->work_pending);
3092 queue_work(priv->workqueue, &priv->work);
3093 break;
3094
3095 case RNDIS_STATUS_MEDIA_DISCONNECT:
3096 netdev_info(usbdev->net, "media disconnect\n");
3097
3098 /* queue work to avoid recursive calls into rndis_command */
3099 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3100 queue_work(priv->workqueue, &priv->work);
3101 break;
3102
3103 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3104 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3105 break;
3106
3107 default:
3108 netdev_info(usbdev->net, "indication: 0x%08x\n",
3109 le32_to_cpu(msg->status));
3110 break;
3111 }
3112 }
3113
3114 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3115 {
3116 struct {
3117 __le32 num_items;
3118 __le32 items[8];
3119 } networks_supported;
3120 struct ndis_80211_capability *caps;
3121 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3122 int len, retval, i, n;
3123 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3124
3125 /* determine supported modes */
3126 len = sizeof(networks_supported);
3127 retval = rndis_query_oid(usbdev, OID_802_11_NETWORK_TYPES_SUPPORTED,
3128 &networks_supported, &len);
3129 if (retval >= 0) {
3130 n = le32_to_cpu(networks_supported.num_items);
3131 if (n > 8)
3132 n = 8;
3133 for (i = 0; i < n; i++) {
3134 switch (le32_to_cpu(networks_supported.items[i])) {
3135 case NDIS_80211_TYPE_FREQ_HOP:
3136 case NDIS_80211_TYPE_DIRECT_SEQ:
3137 priv->caps |= CAP_MODE_80211B;
3138 break;
3139 case NDIS_80211_TYPE_OFDM_A:
3140 priv->caps |= CAP_MODE_80211A;
3141 break;
3142 case NDIS_80211_TYPE_OFDM_G:
3143 priv->caps |= CAP_MODE_80211G;
3144 break;
3145 }
3146 }
3147 }
3148
3149 /* get device 802.11 capabilities, number of PMKIDs */
3150 caps = (struct ndis_80211_capability *)caps_buf;
3151 len = sizeof(caps_buf);
3152 retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
3153 if (retval >= 0) {
3154 netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
3155 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3156 le32_to_cpu(caps->length),
3157 le32_to_cpu(caps->version),
3158 le32_to_cpu(caps->num_pmkids),
3159 le32_to_cpu(caps->num_auth_encr_pair));
3160 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3161 } else
3162 wiphy->max_num_pmkids = 0;
3163
3164 return retval;
3165 }
3166
3167 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3168 {
3169 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3170 enum nl80211_cqm_rssi_threshold_event event;
3171 int thold, hyst, last_event;
3172
3173 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3174 return;
3175 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3176 return;
3177
3178 last_event = priv->last_cqm_event_rssi;
3179 thold = priv->cqm_rssi_thold;
3180 hyst = priv->cqm_rssi_hyst;
3181
3182 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3183 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3184 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3185 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3186 else
3187 return;
3188
3189 priv->last_cqm_event_rssi = rssi;
3190 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3191 }
3192
3193 #define DEVICE_POLLER_JIFFIES (HZ)
3194 static void rndis_device_poller(struct work_struct *work)
3195 {
3196 struct rndis_wlan_private *priv =
3197 container_of(work, struct rndis_wlan_private,
3198 dev_poller_work.work);
3199 struct usbnet *usbdev = priv->usbdev;
3200 __le32 rssi, tmp;
3201 int len, ret, j;
3202 int update_jiffies = DEVICE_POLLER_JIFFIES;
3203 void *buf;
3204
3205 /* Only check/do workaround when connected. Calling is_associated()
3206 * also polls device with rndis_command() and catches for media link
3207 * indications.
3208 */
3209 if (!is_associated(usbdev)) {
3210 /* Workaround bad scanning in BCM4320a devices with active
3211 * background scanning when not associated.
3212 */
3213 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3214 !priv->scan_request) {
3215 /* Get previous scan results */
3216 rndis_check_bssid_list(usbdev, NULL, NULL);
3217
3218 /* Initiate new scan */
3219 rndis_start_bssid_list_scan(usbdev);
3220 }
3221
3222 goto end;
3223 }
3224
3225 len = sizeof(rssi);
3226 ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
3227 if (ret == 0) {
3228 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3229 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3230 }
3231
3232 netdev_dbg(usbdev->net, "dev-poller: OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3233 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3234
3235 /* Workaround transfer stalls on poor quality links.
3236 * TODO: find right way to fix these stalls (as stalls do not happen
3237 * with ndiswrapper/windows driver). */
3238 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3239 /* Decrease stats worker interval to catch stalls.
3240 * faster. Faster than 400-500ms causes packet loss,
3241 * Slower doesn't catch stalls fast enough.
3242 */
3243 j = msecs_to_jiffies(priv->param_workaround_interval);
3244 if (j > DEVICE_POLLER_JIFFIES)
3245 j = DEVICE_POLLER_JIFFIES;
3246 else if (j <= 0)
3247 j = 1;
3248 update_jiffies = j;
3249
3250 /* Send scan OID. Use of both OIDs is required to get device
3251 * working.
3252 */
3253 tmp = cpu_to_le32(1);
3254 rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
3255 sizeof(tmp));
3256
3257 len = CONTROL_BUFFER_SIZE;
3258 buf = kmalloc(len, GFP_KERNEL);
3259 if (!buf)
3260 goto end;
3261
3262 rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
3263 kfree(buf);
3264 }
3265
3266 end:
3267 if (update_jiffies >= HZ)
3268 update_jiffies = round_jiffies_relative(update_jiffies);
3269 else {
3270 j = round_jiffies_relative(update_jiffies);
3271 if (abs(j - update_jiffies) <= 10)
3272 update_jiffies = j;
3273 }
3274
3275 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3276 update_jiffies);
3277 }
3278
3279 /*
3280 * driver/device initialization
3281 */
3282 static void rndis_copy_module_params(struct usbnet *usbdev, int device_type)
3283 {
3284 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3285
3286 priv->device_type = device_type;
3287
3288 priv->param_country[0] = modparam_country[0];
3289 priv->param_country[1] = modparam_country[1];
3290 priv->param_country[2] = 0;
3291 priv->param_frameburst = modparam_frameburst;
3292 priv->param_afterburner = modparam_afterburner;
3293 priv->param_power_save = modparam_power_save;
3294 priv->param_power_output = modparam_power_output;
3295 priv->param_roamtrigger = modparam_roamtrigger;
3296 priv->param_roamdelta = modparam_roamdelta;
3297
3298 priv->param_country[0] = toupper(priv->param_country[0]);
3299 priv->param_country[1] = toupper(priv->param_country[1]);
3300 /* doesn't support EU as country code, use FI instead */
3301 if (!strcmp(priv->param_country, "EU"))
3302 strcpy(priv->param_country, "FI");
3303
3304 if (priv->param_power_save < 0)
3305 priv->param_power_save = 0;
3306 else if (priv->param_power_save > 2)
3307 priv->param_power_save = 2;
3308
3309 if (priv->param_power_output < 0)
3310 priv->param_power_output = 0;
3311 else if (priv->param_power_output > 3)
3312 priv->param_power_output = 3;
3313
3314 if (priv->param_roamtrigger < -80)
3315 priv->param_roamtrigger = -80;
3316 else if (priv->param_roamtrigger > -60)
3317 priv->param_roamtrigger = -60;
3318
3319 if (priv->param_roamdelta < 0)
3320 priv->param_roamdelta = 0;
3321 else if (priv->param_roamdelta > 2)
3322 priv->param_roamdelta = 2;
3323
3324 if (modparam_workaround_interval < 0)
3325 priv->param_workaround_interval = 500;
3326 else
3327 priv->param_workaround_interval = modparam_workaround_interval;
3328 }
3329
3330 static int unknown_early_init(struct usbnet *usbdev)
3331 {
3332 /* copy module parameters for unknown so that iwconfig reports txpower
3333 * and workaround parameter is copied to private structure correctly.
3334 */
3335 rndis_copy_module_params(usbdev, RNDIS_UNKNOWN);
3336
3337 /* This is unknown device, so do not try set configuration parameters.
3338 */
3339
3340 return 0;
3341 }
3342
3343 static int bcm4320a_early_init(struct usbnet *usbdev)
3344 {
3345 /* copy module parameters for bcm4320a so that iwconfig reports txpower
3346 * and workaround parameter is copied to private structure correctly.
3347 */
3348 rndis_copy_module_params(usbdev, RNDIS_BCM4320A);
3349
3350 /* bcm4320a doesn't handle configuration parameters well. Try
3351 * set any and you get partially zeroed mac and broken device.
3352 */
3353
3354 return 0;
3355 }
3356
3357 static int bcm4320b_early_init(struct usbnet *usbdev)
3358 {
3359 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3360 char buf[8];
3361
3362 rndis_copy_module_params(usbdev, RNDIS_BCM4320B);
3363
3364 /* Early initialization settings, setting these won't have effect
3365 * if called after generic_rndis_bind().
3366 */
3367
3368 rndis_set_config_parameter_str(usbdev, "Country", priv->param_country);
3369 rndis_set_config_parameter_str(usbdev, "FrameBursting",
3370 priv->param_frameburst ? "1" : "0");
3371 rndis_set_config_parameter_str(usbdev, "Afterburner",
3372 priv->param_afterburner ? "1" : "0");
3373 sprintf(buf, "%d", priv->param_power_save);
3374 rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf);
3375 sprintf(buf, "%d", priv->param_power_output);
3376 rndis_set_config_parameter_str(usbdev, "PwrOut", buf);
3377 sprintf(buf, "%d", priv->param_roamtrigger);
3378 rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf);
3379 sprintf(buf, "%d", priv->param_roamdelta);
3380 rndis_set_config_parameter_str(usbdev, "RoamDelta", buf);
3381
3382 return 0;
3383 }
3384
3385 /* same as rndis_netdev_ops but with local multicast handler */
3386 static const struct net_device_ops rndis_wlan_netdev_ops = {
3387 .ndo_open = usbnet_open,
3388 .ndo_stop = usbnet_stop,
3389 .ndo_start_xmit = usbnet_start_xmit,
3390 .ndo_tx_timeout = usbnet_tx_timeout,
3391 .ndo_set_mac_address = eth_mac_addr,
3392 .ndo_validate_addr = eth_validate_addr,
3393 .ndo_set_multicast_list = rndis_wlan_set_multicast_list,
3394 };
3395
3396 static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
3397 {
3398 struct wiphy *wiphy;
3399 struct rndis_wlan_private *priv;
3400 int retval, len;
3401 __le32 tmp;
3402
3403 /* allocate wiphy and rndis private data
3404 * NOTE: We only support a single virtual interface, so wiphy
3405 * and wireless_dev are somewhat synonymous for this device.
3406 */
3407 wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private));
3408 if (!wiphy)
3409 return -ENOMEM;
3410
3411 priv = wiphy_priv(wiphy);
3412 usbdev->net->ieee80211_ptr = &priv->wdev;
3413 priv->wdev.wiphy = wiphy;
3414 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3415
3416 /* These have to be initialized before calling generic_rndis_bind().
3417 * Otherwise we'll be in big trouble in rndis_wlan_early_init().
3418 */
3419 usbdev->driver_priv = priv;
3420 priv->usbdev = usbdev;
3421
3422 mutex_init(&priv->command_lock);
3423
3424 /* because rndis_command() sleeps we need to use workqueue */
3425 priv->workqueue = create_singlethread_workqueue("rndis_wlan");
3426 INIT_WORK(&priv->work, rndis_wlan_worker);
3427 INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller);
3428 INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results);
3429
3430 /* try bind rndis_host */
3431 retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS);
3432 if (retval < 0)
3433 goto fail;
3434
3435 /* generic_rndis_bind set packet filter to multicast_all+
3436 * promisc mode which doesn't work well for our devices (device
3437 * picks up rssi to closest station instead of to access point).
3438 *
3439 * rndis_host wants to avoid all OID as much as possible
3440 * so do promisc/multicast handling in rndis_wlan.
3441 */
3442 usbdev->net->netdev_ops = &rndis_wlan_netdev_ops;
3443
3444 tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
3445 retval = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
3446 sizeof(tmp));
3447
3448 len = sizeof(tmp);
3449 retval = rndis_query_oid(usbdev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp,
3450 &len);
3451 priv->multicast_size = le32_to_cpu(tmp);
3452 if (retval < 0 || priv->multicast_size < 0)
3453 priv->multicast_size = 0;
3454 if (priv->multicast_size > 0)
3455 usbdev->net->flags |= IFF_MULTICAST;
3456 else
3457 usbdev->net->flags &= ~IFF_MULTICAST;
3458
3459 /* fill-out wiphy structure and register w/ cfg80211 */
3460 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3461 wiphy->privid = rndis_wiphy_privid;
3462 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3463 | BIT(NL80211_IFTYPE_ADHOC);
3464 wiphy->max_scan_ssids = 1;
3465
3466 /* TODO: fill-out band/encr information based on priv->caps */
3467 rndis_wlan_get_caps(usbdev, wiphy);
3468
3469 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3470 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3471 priv->band.channels = priv->channels;
3472 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3473 priv->band.bitrates = priv->rates;
3474 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3475 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3476 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3477
3478 memcpy(priv->cipher_suites, rndis_cipher_suites,
3479 sizeof(rndis_cipher_suites));
3480 wiphy->cipher_suites = priv->cipher_suites;
3481 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3482
3483 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3484
3485 if (wiphy_register(wiphy)) {
3486 retval = -ENODEV;
3487 goto fail;
3488 }
3489
3490 set_default_iw_params(usbdev);
3491
3492 priv->power_mode = -1;
3493
3494 /* set default rts/frag */
3495 rndis_set_wiphy_params(wiphy,
3496 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3497
3498 /* turn radio off on init */
3499 priv->radio_on = false;
3500 disassociate(usbdev, false);
3501 netif_carrier_off(usbdev->net);
3502
3503 return 0;
3504
3505 fail:
3506 cancel_delayed_work_sync(&priv->dev_poller_work);
3507 cancel_delayed_work_sync(&priv->scan_work);
3508 cancel_work_sync(&priv->work);
3509 flush_workqueue(priv->workqueue);
3510 destroy_workqueue(priv->workqueue);
3511
3512 wiphy_free(wiphy);
3513 return retval;
3514 }
3515
3516 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3517 {
3518 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3519
3520 /* turn radio off */
3521 disassociate(usbdev, false);
3522
3523 cancel_delayed_work_sync(&priv->dev_poller_work);
3524 cancel_delayed_work_sync(&priv->scan_work);
3525 cancel_work_sync(&priv->work);
3526 flush_workqueue(priv->workqueue);
3527 destroy_workqueue(priv->workqueue);
3528
3529 rndis_unbind(usbdev, intf);
3530
3531 wiphy_unregister(priv->wdev.wiphy);
3532 wiphy_free(priv->wdev.wiphy);
3533 }
3534
3535 static int rndis_wlan_reset(struct usbnet *usbdev)
3536 {
3537 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3538 int retval;
3539
3540 netdev_dbg(usbdev->net, "%s()\n", __func__);
3541
3542 retval = rndis_reset(usbdev);
3543 if (retval)
3544 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3545
3546 /* rndis_reset cleared multicast list, so restore here.
3547 (set_multicast_list() also turns on current packet filter) */
3548 set_multicast_list(usbdev);
3549
3550 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3551 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3552
3553 return deauthenticate(usbdev);
3554 }
3555
3556 static int rndis_wlan_stop(struct usbnet *usbdev)
3557 {
3558 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3559 int retval;
3560 __le32 filter;
3561
3562 netdev_dbg(usbdev->net, "%s()\n", __func__);
3563
3564 retval = disassociate(usbdev, false);
3565
3566 priv->work_pending = 0;
3567 cancel_delayed_work_sync(&priv->dev_poller_work);
3568 cancel_delayed_work_sync(&priv->scan_work);
3569 cancel_work_sync(&priv->work);
3570 flush_workqueue(priv->workqueue);
3571
3572 if (priv->scan_request) {
3573 cfg80211_scan_done(priv->scan_request, true);
3574 priv->scan_request = NULL;
3575 }
3576
3577 /* Set current packet filter zero to block receiving data packets from
3578 device. */
3579 filter = 0;
3580 rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
3581 sizeof(filter));
3582
3583 return retval;
3584 }
3585
3586 static const struct driver_info bcm4320b_info = {
3587 .description = "Wireless RNDIS device, BCM4320b based",
3588 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3589 FLAG_AVOID_UNLINK_URBS,
3590 .bind = rndis_wlan_bind,
3591 .unbind = rndis_wlan_unbind,
3592 .status = rndis_status,
3593 .rx_fixup = rndis_rx_fixup,
3594 .tx_fixup = rndis_tx_fixup,
3595 .reset = rndis_wlan_reset,
3596 .stop = rndis_wlan_stop,
3597 .early_init = bcm4320b_early_init,
3598 .indication = rndis_wlan_indication,
3599 };
3600
3601 static const struct driver_info bcm4320a_info = {
3602 .description = "Wireless RNDIS device, BCM4320a based",
3603 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3604 FLAG_AVOID_UNLINK_URBS,
3605 .bind = rndis_wlan_bind,
3606 .unbind = rndis_wlan_unbind,
3607 .status = rndis_status,
3608 .rx_fixup = rndis_rx_fixup,
3609 .tx_fixup = rndis_tx_fixup,
3610 .reset = rndis_wlan_reset,
3611 .stop = rndis_wlan_stop,
3612 .early_init = bcm4320a_early_init,
3613 .indication = rndis_wlan_indication,
3614 };
3615
3616 static const struct driver_info rndis_wlan_info = {
3617 .description = "Wireless RNDIS device",
3618 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3619 FLAG_AVOID_UNLINK_URBS,
3620 .bind = rndis_wlan_bind,
3621 .unbind = rndis_wlan_unbind,
3622 .status = rndis_status,
3623 .rx_fixup = rndis_rx_fixup,
3624 .tx_fixup = rndis_tx_fixup,
3625 .reset = rndis_wlan_reset,
3626 .stop = rndis_wlan_stop,
3627 .early_init = unknown_early_init,
3628 .indication = rndis_wlan_indication,
3629 };
3630
3631 /*-------------------------------------------------------------------------*/
3632
3633 static const struct usb_device_id products [] = {
3634 #define RNDIS_MASTER_INTERFACE \
3635 .bInterfaceClass = USB_CLASS_COMM, \
3636 .bInterfaceSubClass = 2 /* ACM */, \
3637 .bInterfaceProtocol = 0x0ff
3638
3639 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3640 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3641 */
3642 {
3643 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3644 | USB_DEVICE_ID_MATCH_DEVICE,
3645 .idVendor = 0x0411,
3646 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3647 RNDIS_MASTER_INTERFACE,
3648 .driver_info = (unsigned long) &bcm4320b_info,
3649 }, {
3650 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3651 | USB_DEVICE_ID_MATCH_DEVICE,
3652 .idVendor = 0x0baf,
3653 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3654 RNDIS_MASTER_INTERFACE,
3655 .driver_info = (unsigned long) &bcm4320b_info,
3656 }, {
3657 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3658 | USB_DEVICE_ID_MATCH_DEVICE,
3659 .idVendor = 0x050d,
3660 .idProduct = 0x011b, /* Belkin F5D7051 */
3661 RNDIS_MASTER_INTERFACE,
3662 .driver_info = (unsigned long) &bcm4320b_info,
3663 }, {
3664 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3665 | USB_DEVICE_ID_MATCH_DEVICE,
3666 .idVendor = 0x1799, /* Belkin has two vendor ids */
3667 .idProduct = 0x011b, /* Belkin F5D7051 */
3668 RNDIS_MASTER_INTERFACE,
3669 .driver_info = (unsigned long) &bcm4320b_info,
3670 }, {
3671 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3672 | USB_DEVICE_ID_MATCH_DEVICE,
3673 .idVendor = 0x13b1,
3674 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3675 RNDIS_MASTER_INTERFACE,
3676 .driver_info = (unsigned long) &bcm4320b_info,
3677 }, {
3678 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3679 | USB_DEVICE_ID_MATCH_DEVICE,
3680 .idVendor = 0x13b1,
3681 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3682 RNDIS_MASTER_INTERFACE,
3683 .driver_info = (unsigned long) &bcm4320b_info,
3684 }, {
3685 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3686 | USB_DEVICE_ID_MATCH_DEVICE,
3687 .idVendor = 0x0b05,
3688 .idProduct = 0x1717, /* Asus WL169gE */
3689 RNDIS_MASTER_INTERFACE,
3690 .driver_info = (unsigned long) &bcm4320b_info,
3691 }, {
3692 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3693 | USB_DEVICE_ID_MATCH_DEVICE,
3694 .idVendor = 0x0a5c,
3695 .idProduct = 0xd11b, /* Eminent EM4045 */
3696 RNDIS_MASTER_INTERFACE,
3697 .driver_info = (unsigned long) &bcm4320b_info,
3698 }, {
3699 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3700 | USB_DEVICE_ID_MATCH_DEVICE,
3701 .idVendor = 0x1690,
3702 .idProduct = 0x0715, /* BT Voyager 1055 */
3703 RNDIS_MASTER_INTERFACE,
3704 .driver_info = (unsigned long) &bcm4320b_info,
3705 },
3706 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3707 * parameters available, hardware probably contain older firmware version with
3708 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3709 */
3710 {
3711 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3712 | USB_DEVICE_ID_MATCH_DEVICE,
3713 .idVendor = 0x13b1,
3714 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3715 RNDIS_MASTER_INTERFACE,
3716 .driver_info = (unsigned long) &bcm4320a_info,
3717 }, {
3718 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3719 | USB_DEVICE_ID_MATCH_DEVICE,
3720 .idVendor = 0x0baf,
3721 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3722 RNDIS_MASTER_INTERFACE,
3723 .driver_info = (unsigned long) &bcm4320a_info,
3724 }, {
3725 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3726 | USB_DEVICE_ID_MATCH_DEVICE,
3727 .idVendor = 0x0411,
3728 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3729 RNDIS_MASTER_INTERFACE,
3730 .driver_info = (unsigned long) &bcm4320a_info,
3731 },
3732 /* Generic Wireless RNDIS devices that we don't have exact
3733 * idVendor/idProduct/chip yet.
3734 */
3735 {
3736 /* RNDIS is MSFT's un-official variant of CDC ACM */
3737 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3738 .driver_info = (unsigned long) &rndis_wlan_info,
3739 }, {
3740 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3741 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3742 .driver_info = (unsigned long) &rndis_wlan_info,
3743 },
3744 { }, // END
3745 };
3746 MODULE_DEVICE_TABLE(usb, products);
3747
3748 static struct usb_driver rndis_wlan_driver = {
3749 .name = "rndis_wlan",
3750 .id_table = products,
3751 .probe = usbnet_probe,
3752 .disconnect = usbnet_disconnect,
3753 .suspend = usbnet_suspend,
3754 .resume = usbnet_resume,
3755 };
3756
3757 static int __init rndis_wlan_init(void)
3758 {
3759 return usb_register(&rndis_wlan_driver);
3760 }
3761 module_init(rndis_wlan_init);
3762
3763 static void __exit rndis_wlan_exit(void)
3764 {
3765 usb_deregister(&rndis_wlan_driver);
3766 }
3767 module_exit(rndis_wlan_exit);
3768
3769 MODULE_AUTHOR("Bjorge Dijkstra");
3770 MODULE_AUTHOR("Jussi Kivilinna");
3771 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3772 MODULE_LICENSE("GPL");
3773
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