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net: ptp: do not reimplement PTP/BPF classifier
[linux/fpc-iii.git] / drivers / net / wireless / rndis_wlan.c
blob39d22a154341019fe8038bdfa1f7e1b4cb560cf2
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@iki.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, see <http://www.gnu.org/licenses/>.
19 *
20 * Portions of this file are based on NDISwrapper project,
21 * Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
22 * http://ndiswrapper.sourceforge.net/
23 */
24
25 // #define DEBUG // error path messages, extra info
26 // #define VERBOSE // more; success messages
27
28 #include <linux/module.h>
29 #include <linux/netdevice.h>
30 #include <linux/etherdevice.h>
31 #include <linux/ethtool.h>
32 #include <linux/workqueue.h>
33 #include <linux/mutex.h>
34 #include <linux/mii.h>
35 #include <linux/usb.h>
36 #include <linux/usb/cdc.h>
37 #include <linux/ieee80211.h>
38 #include <linux/if_arp.h>
39 #include <linux/ctype.h>
40 #include <linux/spinlock.h>
41 #include <linux/slab.h>
42 #include <net/cfg80211.h>
43 #include <linux/usb/usbnet.h>
44 #include <linux/usb/rndis_host.h>
45
46
47 /* NOTE: All these are settings for Broadcom chipset */
48 static char modparam_country[4] = "EU";
49 module_param_string(country, modparam_country, 4, 0444);
50 MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
51
52 static int modparam_frameburst = 1;
53 module_param_named(frameburst, modparam_frameburst, int, 0444);
54 MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
55
56 static int modparam_afterburner = 0;
57 module_param_named(afterburner, modparam_afterburner, int, 0444);
58 MODULE_PARM_DESC(afterburner,
59 "enable afterburner aka '125 High Speed Mode' (default: off)");
60
61 static int modparam_power_save = 0;
62 module_param_named(power_save, modparam_power_save, int, 0444);
63 MODULE_PARM_DESC(power_save,
64 "set power save mode: 0=off, 1=on, 2=fast (default: off)");
65
66 static int modparam_power_output = 3;
67 module_param_named(power_output, modparam_power_output, int, 0444);
68 MODULE_PARM_DESC(power_output,
69 "set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
70
71 static int modparam_roamtrigger = -70;
72 module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
73 MODULE_PARM_DESC(roamtrigger,
74 "set roaming dBm trigger: -80=optimize for distance, "
75 "-60=bandwidth (default: -70)");
76
77 static int modparam_roamdelta = 1;
78 module_param_named(roamdelta, modparam_roamdelta, int, 0444);
79 MODULE_PARM_DESC(roamdelta,
80 "set roaming tendency: 0=aggressive, 1=moderate, "
81 "2=conservative (default: moderate)");
82
83 static int modparam_workaround_interval;
84 module_param_named(workaround_interval, modparam_workaround_interval,
85 int, 0444);
86 MODULE_PARM_DESC(workaround_interval,
87 "set stall workaround interval in msecs (0=disabled) (default: 0)");
88
89 /* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
90 #define WL_NOISE -96 /* typical noise level in dBm */
91 #define WL_SIGMAX -32 /* typical maximum signal level in dBm */
92
93
94 /* Assume that Broadcom 4320 (only chipset at time of writing known to be
95 * based on wireless rndis) has default txpower of 13dBm.
96 * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
97 * 100% : 20 mW ~ 13dBm
98 * 75% : 15 mW ~ 12dBm
99 * 50% : 10 mW ~ 10dBm
100 * 25% : 5 mW ~ 7dBm
101 */
102 #define BCM4320_DEFAULT_TXPOWER_DBM_100 13
103 #define BCM4320_DEFAULT_TXPOWER_DBM_75 12
104 #define BCM4320_DEFAULT_TXPOWER_DBM_50 10
105 #define BCM4320_DEFAULT_TXPOWER_DBM_25 7
106
107 /* Known device types */
108 #define RNDIS_UNKNOWN 0
109 #define RNDIS_BCM4320A 1
110 #define RNDIS_BCM4320B 2
111
112
113 /* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
114 * slightly modified for datatype endianess, etc
115 */
116 #define NDIS_802_11_LENGTH_SSID 32
117 #define NDIS_802_11_LENGTH_RATES 8
118 #define NDIS_802_11_LENGTH_RATES_EX 16
119
120 enum ndis_80211_net_type {
121 NDIS_80211_TYPE_FREQ_HOP,
122 NDIS_80211_TYPE_DIRECT_SEQ,
123 NDIS_80211_TYPE_OFDM_A,
124 NDIS_80211_TYPE_OFDM_G
125 };
126
127 enum ndis_80211_net_infra {
128 NDIS_80211_INFRA_ADHOC,
129 NDIS_80211_INFRA_INFRA,
130 NDIS_80211_INFRA_AUTO_UNKNOWN
131 };
132
133 enum ndis_80211_auth_mode {
134 NDIS_80211_AUTH_OPEN,
135 NDIS_80211_AUTH_SHARED,
136 NDIS_80211_AUTH_AUTO_SWITCH,
137 NDIS_80211_AUTH_WPA,
138 NDIS_80211_AUTH_WPA_PSK,
139 NDIS_80211_AUTH_WPA_NONE,
140 NDIS_80211_AUTH_WPA2,
141 NDIS_80211_AUTH_WPA2_PSK
142 };
143
144 enum ndis_80211_encr_status {
145 NDIS_80211_ENCR_WEP_ENABLED,
146 NDIS_80211_ENCR_DISABLED,
147 NDIS_80211_ENCR_WEP_KEY_ABSENT,
148 NDIS_80211_ENCR_NOT_SUPPORTED,
149 NDIS_80211_ENCR_TKIP_ENABLED,
150 NDIS_80211_ENCR_TKIP_KEY_ABSENT,
151 NDIS_80211_ENCR_CCMP_ENABLED,
152 NDIS_80211_ENCR_CCMP_KEY_ABSENT
153 };
154
155 enum ndis_80211_priv_filter {
156 NDIS_80211_PRIV_ACCEPT_ALL,
157 NDIS_80211_PRIV_8021X_WEP
158 };
159
160 enum ndis_80211_status_type {
161 NDIS_80211_STATUSTYPE_AUTHENTICATION,
162 NDIS_80211_STATUSTYPE_MEDIASTREAMMODE,
163 NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST,
164 NDIS_80211_STATUSTYPE_RADIOSTATE,
165 };
166
167 enum ndis_80211_media_stream_mode {
168 NDIS_80211_MEDIA_STREAM_OFF,
169 NDIS_80211_MEDIA_STREAM_ON
170 };
171
172 enum ndis_80211_radio_status {
173 NDIS_80211_RADIO_STATUS_ON,
174 NDIS_80211_RADIO_STATUS_HARDWARE_OFF,
175 NDIS_80211_RADIO_STATUS_SOFTWARE_OFF,
176 };
177
178 enum ndis_80211_addkey_bits {
179 NDIS_80211_ADDKEY_8021X_AUTH = cpu_to_le32(1 << 28),
180 NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ = cpu_to_le32(1 << 29),
181 NDIS_80211_ADDKEY_PAIRWISE_KEY = cpu_to_le32(1 << 30),
182 NDIS_80211_ADDKEY_TRANSMIT_KEY = cpu_to_le32(1 << 31)
183 };
184
185 enum ndis_80211_addwep_bits {
186 NDIS_80211_ADDWEP_PERCLIENT_KEY = cpu_to_le32(1 << 30),
187 NDIS_80211_ADDWEP_TRANSMIT_KEY = cpu_to_le32(1 << 31)
188 };
189
190 enum ndis_80211_power_mode {
191 NDIS_80211_POWER_MODE_CAM,
192 NDIS_80211_POWER_MODE_MAX_PSP,
193 NDIS_80211_POWER_MODE_FAST_PSP,
194 };
195
196 enum ndis_80211_pmkid_cand_list_flag_bits {
197 NDIS_80211_PMKID_CAND_PREAUTH = cpu_to_le32(1 << 0)
198 };
199
200 struct ndis_80211_auth_request {
201 __le32 length;
202 u8 bssid[6];
203 u8 padding[2];
204 __le32 flags;
205 } __packed;
206
207 struct ndis_80211_pmkid_candidate {
208 u8 bssid[6];
209 u8 padding[2];
210 __le32 flags;
211 } __packed;
212
213 struct ndis_80211_pmkid_cand_list {
214 __le32 version;
215 __le32 num_candidates;
216 struct ndis_80211_pmkid_candidate candidate_list[0];
217 } __packed;
218
219 struct ndis_80211_status_indication {
220 __le32 status_type;
221 union {
222 __le32 media_stream_mode;
223 __le32 radio_status;
224 struct ndis_80211_auth_request auth_request[0];
225 struct ndis_80211_pmkid_cand_list cand_list;
226 } u;
227 } __packed;
228
229 struct ndis_80211_ssid {
230 __le32 length;
231 u8 essid[NDIS_802_11_LENGTH_SSID];
232 } __packed;
233
234 struct ndis_80211_conf_freq_hop {
235 __le32 length;
236 __le32 hop_pattern;
237 __le32 hop_set;
238 __le32 dwell_time;
239 } __packed;
240
241 struct ndis_80211_conf {
242 __le32 length;
243 __le32 beacon_period;
244 __le32 atim_window;
245 __le32 ds_config;
246 struct ndis_80211_conf_freq_hop fh_config;
247 } __packed;
248
249 struct ndis_80211_bssid_ex {
250 __le32 length;
251 u8 mac[6];
252 u8 padding[2];
253 struct ndis_80211_ssid ssid;
254 __le32 privacy;
255 __le32 rssi;
256 __le32 net_type;
257 struct ndis_80211_conf config;
258 __le32 net_infra;
259 u8 rates[NDIS_802_11_LENGTH_RATES_EX];
260 __le32 ie_length;
261 u8 ies[0];
262 } __packed;
263
264 struct ndis_80211_bssid_list_ex {
265 __le32 num_items;
266 struct ndis_80211_bssid_ex bssid[0];
267 } __packed;
268
269 struct ndis_80211_fixed_ies {
270 u8 timestamp[8];
271 __le16 beacon_interval;
272 __le16 capabilities;
273 } __packed;
274
275 struct ndis_80211_wep_key {
276 __le32 size;
277 __le32 index;
278 __le32 length;
279 u8 material[32];
280 } __packed;
281
282 struct ndis_80211_key {
283 __le32 size;
284 __le32 index;
285 __le32 length;
286 u8 bssid[6];
287 u8 padding[6];
288 u8 rsc[8];
289 u8 material[32];
290 } __packed;
291
292 struct ndis_80211_remove_key {
293 __le32 size;
294 __le32 index;
295 u8 bssid[6];
296 u8 padding[2];
297 } __packed;
298
299 struct ndis_config_param {
300 __le32 name_offs;
301 __le32 name_length;
302 __le32 type;
303 __le32 value_offs;
304 __le32 value_length;
305 } __packed;
306
307 struct ndis_80211_assoc_info {
308 __le32 length;
309 __le16 req_ies;
310 struct req_ie {
311 __le16 capa;
312 __le16 listen_interval;
313 u8 cur_ap_address[6];
314 } req_ie;
315 __le32 req_ie_length;
316 __le32 offset_req_ies;
317 __le16 resp_ies;
318 struct resp_ie {
319 __le16 capa;
320 __le16 status_code;
321 __le16 assoc_id;
322 } resp_ie;
323 __le32 resp_ie_length;
324 __le32 offset_resp_ies;
325 } __packed;
326
327 struct ndis_80211_auth_encr_pair {
328 __le32 auth_mode;
329 __le32 encr_mode;
330 } __packed;
331
332 struct ndis_80211_capability {
333 __le32 length;
334 __le32 version;
335 __le32 num_pmkids;
336 __le32 num_auth_encr_pair;
337 struct ndis_80211_auth_encr_pair auth_encr_pair[0];
338 } __packed;
339
340 struct ndis_80211_bssid_info {
341 u8 bssid[6];
342 u8 pmkid[16];
343 } __packed;
344
345 struct ndis_80211_pmkid {
346 __le32 length;
347 __le32 bssid_info_count;
348 struct ndis_80211_bssid_info bssid_info[0];
349 } __packed;
350
351 /*
352 * private data
353 */
354 #define CAP_MODE_80211A 1
355 #define CAP_MODE_80211B 2
356 #define CAP_MODE_80211G 4
357 #define CAP_MODE_MASK 7
358
359 #define WORK_LINK_UP (1<<0)
360 #define WORK_LINK_DOWN (1<<1)
361 #define WORK_SET_MULTICAST_LIST (1<<2)
362
363 #define RNDIS_WLAN_ALG_NONE 0
364 #define RNDIS_WLAN_ALG_WEP (1<<0)
365 #define RNDIS_WLAN_ALG_TKIP (1<<1)
366 #define RNDIS_WLAN_ALG_CCMP (1<<2)
367
368 #define RNDIS_WLAN_NUM_KEYS 4
369 #define RNDIS_WLAN_KEY_MGMT_NONE 0
370 #define RNDIS_WLAN_KEY_MGMT_802_1X (1<<0)
371 #define RNDIS_WLAN_KEY_MGMT_PSK (1<<1)
372
373 #define COMMAND_BUFFER_SIZE (CONTROL_BUFFER_SIZE + sizeof(struct rndis_set))
374
375 static const struct ieee80211_channel rndis_channels[] = {
376 { .center_freq = 2412 },
377 { .center_freq = 2417 },
378 { .center_freq = 2422 },
379 { .center_freq = 2427 },
380 { .center_freq = 2432 },
381 { .center_freq = 2437 },
382 { .center_freq = 2442 },
383 { .center_freq = 2447 },
384 { .center_freq = 2452 },
385 { .center_freq = 2457 },
386 { .center_freq = 2462 },
387 { .center_freq = 2467 },
388 { .center_freq = 2472 },
389 { .center_freq = 2484 },
390 };
391
392 static const struct ieee80211_rate rndis_rates[] = {
393 { .bitrate = 10 },
394 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
395 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
396 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
397 { .bitrate = 60 },
398 { .bitrate = 90 },
399 { .bitrate = 120 },
400 { .bitrate = 180 },
401 { .bitrate = 240 },
402 { .bitrate = 360 },
403 { .bitrate = 480 },
404 { .bitrate = 540 }
405 };
406
407 static const u32 rndis_cipher_suites[] = {
408 WLAN_CIPHER_SUITE_WEP40,
409 WLAN_CIPHER_SUITE_WEP104,
410 WLAN_CIPHER_SUITE_TKIP,
411 WLAN_CIPHER_SUITE_CCMP,
412 };
413
414 struct rndis_wlan_encr_key {
415 int len;
416 u32 cipher;
417 u8 material[32];
418 u8 bssid[ETH_ALEN];
419 bool pairwise;
420 bool tx_key;
421 };
422
423 /* RNDIS device private data */
424 struct rndis_wlan_private {
425 struct usbnet *usbdev;
426
427 struct wireless_dev wdev;
428
429 struct cfg80211_scan_request *scan_request;
430
431 struct workqueue_struct *workqueue;
432 struct delayed_work dev_poller_work;
433 struct delayed_work scan_work;
434 struct work_struct work;
435 struct mutex command_lock;
436 unsigned long work_pending;
437 int last_qual;
438 s32 cqm_rssi_thold;
439 u32 cqm_rssi_hyst;
440 int last_cqm_event_rssi;
441
442 struct ieee80211_supported_band band;
443 struct ieee80211_channel channels[ARRAY_SIZE(rndis_channels)];
444 struct ieee80211_rate rates[ARRAY_SIZE(rndis_rates)];
445 u32 cipher_suites[ARRAY_SIZE(rndis_cipher_suites)];
446
447 int device_type;
448 int caps;
449 int multicast_size;
450
451 /* module parameters */
452 char param_country[4];
453 int param_frameburst;
454 int param_afterburner;
455 int param_power_save;
456 int param_power_output;
457 int param_roamtrigger;
458 int param_roamdelta;
459 u32 param_workaround_interval;
460
461 /* hardware state */
462 bool radio_on;
463 int power_mode;
464 int infra_mode;
465 bool connected;
466 u8 bssid[ETH_ALEN];
467 u32 current_command_oid;
468
469 /* encryption stuff */
470 u8 encr_tx_key_index;
471 struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
472 int wpa_version;
473
474 u8 command_buffer[COMMAND_BUFFER_SIZE];
475 };
476
477 /*
478 * cfg80211 ops
479 */
480 static int rndis_change_virtual_intf(struct wiphy *wiphy,
481 struct net_device *dev,
482 enum nl80211_iftype type, u32 *flags,
483 struct vif_params *params);
484
485 static int rndis_scan(struct wiphy *wiphy,
486 struct cfg80211_scan_request *request);
487
488 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed);
489
490 static int rndis_set_tx_power(struct wiphy *wiphy,
491 struct wireless_dev *wdev,
492 enum nl80211_tx_power_setting type,
493 int mbm);
494 static int rndis_get_tx_power(struct wiphy *wiphy,
495 struct wireless_dev *wdev,
496 int *dbm);
497
498 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
499 struct cfg80211_connect_params *sme);
500
501 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
502 u16 reason_code);
503
504 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
505 struct cfg80211_ibss_params *params);
506
507 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev);
508
509 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
510 u8 key_index, bool pairwise, const u8 *mac_addr,
511 struct key_params *params);
512
513 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
514 u8 key_index, bool pairwise, const u8 *mac_addr);
515
516 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
517 u8 key_index, bool unicast, bool multicast);
518
519 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
520 u8 *mac, struct station_info *sinfo);
521
522 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
523 int idx, u8 *mac, struct station_info *sinfo);
524
525 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
526 struct cfg80211_pmksa *pmksa);
527
528 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
529 struct cfg80211_pmksa *pmksa);
530
531 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
532
533 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
534 bool enabled, int timeout);
535
536 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
537 struct net_device *dev,
538 s32 rssi_thold, u32 rssi_hyst);
539
540 static const struct cfg80211_ops rndis_config_ops = {
541 .change_virtual_intf = rndis_change_virtual_intf,
542 .scan = rndis_scan,
543 .set_wiphy_params = rndis_set_wiphy_params,
544 .set_tx_power = rndis_set_tx_power,
545 .get_tx_power = rndis_get_tx_power,
546 .connect = rndis_connect,
547 .disconnect = rndis_disconnect,
548 .join_ibss = rndis_join_ibss,
549 .leave_ibss = rndis_leave_ibss,
550 .add_key = rndis_add_key,
551 .del_key = rndis_del_key,
552 .set_default_key = rndis_set_default_key,
553 .get_station = rndis_get_station,
554 .dump_station = rndis_dump_station,
555 .set_pmksa = rndis_set_pmksa,
556 .del_pmksa = rndis_del_pmksa,
557 .flush_pmksa = rndis_flush_pmksa,
558 .set_power_mgmt = rndis_set_power_mgmt,
559 .set_cqm_rssi_config = rndis_set_cqm_rssi_config,
560 };
561
562 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
563
564
565 static struct rndis_wlan_private *get_rndis_wlan_priv(struct usbnet *dev)
566 {
567 return (struct rndis_wlan_private *)dev->driver_priv;
568 }
569
570 static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
571 {
572 switch (priv->param_power_output) {
573 default:
574 case 3:
575 return BCM4320_DEFAULT_TXPOWER_DBM_100;
576 case 2:
577 return BCM4320_DEFAULT_TXPOWER_DBM_75;
578 case 1:
579 return BCM4320_DEFAULT_TXPOWER_DBM_50;
580 case 0:
581 return BCM4320_DEFAULT_TXPOWER_DBM_25;
582 }
583 }
584
585 static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
586 {
587 int cipher = priv->encr_keys[idx].cipher;
588
589 return (cipher == WLAN_CIPHER_SUITE_CCMP ||
590 cipher == WLAN_CIPHER_SUITE_TKIP);
591 }
592
593 static int rndis_cipher_to_alg(u32 cipher)
594 {
595 switch (cipher) {
596 default:
597 return RNDIS_WLAN_ALG_NONE;
598 case WLAN_CIPHER_SUITE_WEP40:
599 case WLAN_CIPHER_SUITE_WEP104:
600 return RNDIS_WLAN_ALG_WEP;
601 case WLAN_CIPHER_SUITE_TKIP:
602 return RNDIS_WLAN_ALG_TKIP;
603 case WLAN_CIPHER_SUITE_CCMP:
604 return RNDIS_WLAN_ALG_CCMP;
605 }
606 }
607
608 static int rndis_akm_suite_to_key_mgmt(u32 akm_suite)
609 {
610 switch (akm_suite) {
611 default:
612 return RNDIS_WLAN_KEY_MGMT_NONE;
613 case WLAN_AKM_SUITE_8021X:
614 return RNDIS_WLAN_KEY_MGMT_802_1X;
615 case WLAN_AKM_SUITE_PSK:
616 return RNDIS_WLAN_KEY_MGMT_PSK;
617 }
618 }
619
620 #ifdef DEBUG
621 static const char *oid_to_string(u32 oid)
622 {
623 switch (oid) {
624 #define OID_STR(oid) case oid: return(#oid)
625 /* from rndis_host.h */
626 OID_STR(RNDIS_OID_802_3_PERMANENT_ADDRESS);
627 OID_STR(RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE);
628 OID_STR(RNDIS_OID_GEN_CURRENT_PACKET_FILTER);
629 OID_STR(RNDIS_OID_GEN_PHYSICAL_MEDIUM);
630
631 /* from rndis_wlan.c */
632 OID_STR(RNDIS_OID_GEN_LINK_SPEED);
633 OID_STR(RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER);
634
635 OID_STR(RNDIS_OID_GEN_XMIT_OK);
636 OID_STR(RNDIS_OID_GEN_RCV_OK);
637 OID_STR(RNDIS_OID_GEN_XMIT_ERROR);
638 OID_STR(RNDIS_OID_GEN_RCV_ERROR);
639 OID_STR(RNDIS_OID_GEN_RCV_NO_BUFFER);
640
641 OID_STR(RNDIS_OID_802_3_CURRENT_ADDRESS);
642 OID_STR(RNDIS_OID_802_3_MULTICAST_LIST);
643 OID_STR(RNDIS_OID_802_3_MAXIMUM_LIST_SIZE);
644
645 OID_STR(RNDIS_OID_802_11_BSSID);
646 OID_STR(RNDIS_OID_802_11_SSID);
647 OID_STR(RNDIS_OID_802_11_INFRASTRUCTURE_MODE);
648 OID_STR(RNDIS_OID_802_11_ADD_WEP);
649 OID_STR(RNDIS_OID_802_11_REMOVE_WEP);
650 OID_STR(RNDIS_OID_802_11_DISASSOCIATE);
651 OID_STR(RNDIS_OID_802_11_AUTHENTICATION_MODE);
652 OID_STR(RNDIS_OID_802_11_PRIVACY_FILTER);
653 OID_STR(RNDIS_OID_802_11_BSSID_LIST_SCAN);
654 OID_STR(RNDIS_OID_802_11_ENCRYPTION_STATUS);
655 OID_STR(RNDIS_OID_802_11_ADD_KEY);
656 OID_STR(RNDIS_OID_802_11_REMOVE_KEY);
657 OID_STR(RNDIS_OID_802_11_ASSOCIATION_INFORMATION);
658 OID_STR(RNDIS_OID_802_11_CAPABILITY);
659 OID_STR(RNDIS_OID_802_11_PMKID);
660 OID_STR(RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED);
661 OID_STR(RNDIS_OID_802_11_NETWORK_TYPE_IN_USE);
662 OID_STR(RNDIS_OID_802_11_TX_POWER_LEVEL);
663 OID_STR(RNDIS_OID_802_11_RSSI);
664 OID_STR(RNDIS_OID_802_11_RSSI_TRIGGER);
665 OID_STR(RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD);
666 OID_STR(RNDIS_OID_802_11_RTS_THRESHOLD);
667 OID_STR(RNDIS_OID_802_11_SUPPORTED_RATES);
668 OID_STR(RNDIS_OID_802_11_CONFIGURATION);
669 OID_STR(RNDIS_OID_802_11_POWER_MODE);
670 OID_STR(RNDIS_OID_802_11_BSSID_LIST);
671 #undef OID_STR
672 }
673
674 return "?";
675 }
676 #else
677 static const char *oid_to_string(u32 oid)
678 {
679 return "?";
680 }
681 #endif
682
683 /* translate error code */
684 static int rndis_error_status(__le32 rndis_status)
685 {
686 int ret = -EINVAL;
687 switch (le32_to_cpu(rndis_status)) {
688 case RNDIS_STATUS_SUCCESS:
689 ret = 0;
690 break;
691 case RNDIS_STATUS_FAILURE:
692 case RNDIS_STATUS_INVALID_DATA:
693 ret = -EINVAL;
694 break;
695 case RNDIS_STATUS_NOT_SUPPORTED:
696 ret = -EOPNOTSUPP;
697 break;
698 case RNDIS_STATUS_ADAPTER_NOT_READY:
699 case RNDIS_STATUS_ADAPTER_NOT_OPEN:
700 ret = -EBUSY;
701 break;
702 }
703 return ret;
704 }
705
706 static int rndis_query_oid(struct usbnet *dev, u32 oid, void *data, int *len)
707 {
708 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
709 union {
710 void *buf;
711 struct rndis_msg_hdr *header;
712 struct rndis_query *get;
713 struct rndis_query_c *get_c;
714 } u;
715 int ret, buflen;
716 int resplen, respoffs, copylen;
717
718 buflen = *len + sizeof(*u.get);
719 if (buflen < CONTROL_BUFFER_SIZE)
720 buflen = CONTROL_BUFFER_SIZE;
721
722 if (buflen > COMMAND_BUFFER_SIZE) {
723 u.buf = kmalloc(buflen, GFP_KERNEL);
724 if (!u.buf)
725 return -ENOMEM;
726 } else {
727 u.buf = priv->command_buffer;
728 }
729
730 mutex_lock(&priv->command_lock);
731
732 memset(u.get, 0, sizeof *u.get);
733 u.get->msg_type = cpu_to_le32(RNDIS_MSG_QUERY);
734 u.get->msg_len = cpu_to_le32(sizeof *u.get);
735 u.get->oid = cpu_to_le32(oid);
736
737 priv->current_command_oid = oid;
738 ret = rndis_command(dev, u.header, buflen);
739 priv->current_command_oid = 0;
740 if (ret < 0)
741 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
742 __func__, oid_to_string(oid), ret,
743 le32_to_cpu(u.get_c->status));
744
745 if (ret == 0) {
746 resplen = le32_to_cpu(u.get_c->len);
747 respoffs = le32_to_cpu(u.get_c->offset) + 8;
748
749 if (respoffs > buflen) {
750 /* Device returned data offset outside buffer, error. */
751 netdev_dbg(dev->net, "%s(%s): received invalid "
752 "data offset: %d > %d\n", __func__,
753 oid_to_string(oid), respoffs, buflen);
754
755 ret = -EINVAL;
756 goto exit_unlock;
757 }
758
759 if ((resplen + respoffs) > buflen) {
760 /* Device would have returned more data if buffer would
761 * have been big enough. Copy just the bits that we got.
762 */
763 copylen = buflen - respoffs;
764 } else {
765 copylen = resplen;
766 }
767
768 if (copylen > *len)
769 copylen = *len;
770
771 memcpy(data, u.buf + respoffs, copylen);
772
773 *len = resplen;
774
775 ret = rndis_error_status(u.get_c->status);
776 if (ret < 0)
777 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
778 __func__, oid_to_string(oid),
779 le32_to_cpu(u.get_c->status), ret);
780 }
781
782 exit_unlock:
783 mutex_unlock(&priv->command_lock);
784
785 if (u.buf != priv->command_buffer)
786 kfree(u.buf);
787 return ret;
788 }
789
790 static int rndis_set_oid(struct usbnet *dev, u32 oid, const void *data,
791 int len)
792 {
793 struct rndis_wlan_private *priv = get_rndis_wlan_priv(dev);
794 union {
795 void *buf;
796 struct rndis_msg_hdr *header;
797 struct rndis_set *set;
798 struct rndis_set_c *set_c;
799 } u;
800 int ret, buflen;
801
802 buflen = len + sizeof(*u.set);
803 if (buflen < CONTROL_BUFFER_SIZE)
804 buflen = CONTROL_BUFFER_SIZE;
805
806 if (buflen > COMMAND_BUFFER_SIZE) {
807 u.buf = kmalloc(buflen, GFP_KERNEL);
808 if (!u.buf)
809 return -ENOMEM;
810 } else {
811 u.buf = priv->command_buffer;
812 }
813
814 mutex_lock(&priv->command_lock);
815
816 memset(u.set, 0, sizeof *u.set);
817 u.set->msg_type = cpu_to_le32(RNDIS_MSG_SET);
818 u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
819 u.set->oid = cpu_to_le32(oid);
820 u.set->len = cpu_to_le32(len);
821 u.set->offset = cpu_to_le32(sizeof(*u.set) - 8);
822 u.set->handle = cpu_to_le32(0);
823 memcpy(u.buf + sizeof(*u.set), data, len);
824
825 priv->current_command_oid = oid;
826 ret = rndis_command(dev, u.header, buflen);
827 priv->current_command_oid = 0;
828 if (ret < 0)
829 netdev_dbg(dev->net, "%s(%s): rndis_command() failed, %d (%08x)\n",
830 __func__, oid_to_string(oid), ret,
831 le32_to_cpu(u.set_c->status));
832
833 if (ret == 0) {
834 ret = rndis_error_status(u.set_c->status);
835
836 if (ret < 0)
837 netdev_dbg(dev->net, "%s(%s): device returned error, 0x%08x (%d)\n",
838 __func__, oid_to_string(oid),
839 le32_to_cpu(u.set_c->status), ret);
840 }
841
842 mutex_unlock(&priv->command_lock);
843
844 if (u.buf != priv->command_buffer)
845 kfree(u.buf);
846 return ret;
847 }
848
849 static int rndis_reset(struct usbnet *usbdev)
850 {
851 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
852 struct rndis_reset *reset;
853 int ret;
854
855 mutex_lock(&priv->command_lock);
856
857 reset = (void *)priv->command_buffer;
858 memset(reset, 0, sizeof(*reset));
859 reset->msg_type = cpu_to_le32(RNDIS_MSG_RESET);
860 reset->msg_len = cpu_to_le32(sizeof(*reset));
861 priv->current_command_oid = 0;
862 ret = rndis_command(usbdev, (void *)reset, CONTROL_BUFFER_SIZE);
863
864 mutex_unlock(&priv->command_lock);
865
866 if (ret < 0)
867 return ret;
868 return 0;
869 }
870
871 /*
872 * Specs say that we can only set config parameters only soon after device
873 * initialization.
874 * value_type: 0 = u32, 2 = unicode string
875 */
876 static int rndis_set_config_parameter(struct usbnet *dev, char *param,
877 int value_type, void *value)
878 {
879 struct ndis_config_param *infobuf;
880 int value_len, info_len, param_len, ret, i;
881 __le16 *unibuf;
882 __le32 *dst_value;
883
884 if (value_type == 0)
885 value_len = sizeof(__le32);
886 else if (value_type == 2)
887 value_len = strlen(value) * sizeof(__le16);
888 else
889 return -EINVAL;
890
891 param_len = strlen(param) * sizeof(__le16);
892 info_len = sizeof(*infobuf) + param_len + value_len;
893
894 #ifdef DEBUG
895 info_len += 12;
896 #endif
897 infobuf = kmalloc(info_len, GFP_KERNEL);
898 if (!infobuf)
899 return -ENOMEM;
900
901 #ifdef DEBUG
902 info_len -= 12;
903 /* extra 12 bytes are for padding (debug output) */
904 memset(infobuf, 0xCC, info_len + 12);
905 #endif
906
907 if (value_type == 2)
908 netdev_dbg(dev->net, "setting config parameter: %s, value: %s\n",
909 param, (u8 *)value);
910 else
911 netdev_dbg(dev->net, "setting config parameter: %s, value: %d\n",
912 param, *(u32 *)value);
913
914 infobuf->name_offs = cpu_to_le32(sizeof(*infobuf));
915 infobuf->name_length = cpu_to_le32(param_len);
916 infobuf->type = cpu_to_le32(value_type);
917 infobuf->value_offs = cpu_to_le32(sizeof(*infobuf) + param_len);
918 infobuf->value_length = cpu_to_le32(value_len);
919
920 /* simple string to unicode string conversion */
921 unibuf = (void *)infobuf + sizeof(*infobuf);
922 for (i = 0; i < param_len / sizeof(__le16); i++)
923 unibuf[i] = cpu_to_le16(param[i]);
924
925 if (value_type == 2) {
926 unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
927 for (i = 0; i < value_len / sizeof(__le16); i++)
928 unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
929 } else {
930 dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
931 *dst_value = cpu_to_le32(*(u32 *)value);
932 }
933
934 #ifdef DEBUG
935 netdev_dbg(dev->net, "info buffer (len: %d)\n", info_len);
936 for (i = 0; i < info_len; i += 12) {
937 u32 *tmp = (u32 *)((u8 *)infobuf + i);
938 netdev_dbg(dev->net, "%08X:%08X:%08X\n",
939 cpu_to_be32(tmp[0]),
940 cpu_to_be32(tmp[1]),
941 cpu_to_be32(tmp[2]));
942 }
943 #endif
944
945 ret = rndis_set_oid(dev, RNDIS_OID_GEN_RNDIS_CONFIG_PARAMETER,
946 infobuf, info_len);
947 if (ret != 0)
948 netdev_dbg(dev->net, "setting rndis config parameter failed, %d\n",
949 ret);
950
951 kfree(infobuf);
952 return ret;
953 }
954
955 static int rndis_set_config_parameter_str(struct usbnet *dev,
956 char *param, char *value)
957 {
958 return rndis_set_config_parameter(dev, param, 2, value);
959 }
960
961 /*
962 * data conversion functions
963 */
964 static int level_to_qual(int level)
965 {
966 int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
967 return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
968 }
969
970 /*
971 * common functions
972 */
973 static int set_infra_mode(struct usbnet *usbdev, int mode);
974 static void restore_keys(struct usbnet *usbdev);
975 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
976 bool *matched);
977
978 static int rndis_start_bssid_list_scan(struct usbnet *usbdev)
979 {
980 __le32 tmp;
981
982 /* Note: RNDIS_OID_802_11_BSSID_LIST_SCAN clears internal BSS list. */
983 tmp = cpu_to_le32(1);
984 return rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST_SCAN, &tmp,
985 sizeof(tmp));
986 }
987
988 static int set_essid(struct usbnet *usbdev, struct ndis_80211_ssid *ssid)
989 {
990 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
991 int ret;
992
993 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_SSID,
994 ssid, sizeof(*ssid));
995 if (ret < 0) {
996 netdev_warn(usbdev->net, "setting SSID failed (%08X)\n", ret);
997 return ret;
998 }
999 if (ret == 0) {
1000 priv->radio_on = true;
1001 netdev_dbg(usbdev->net, "%s(): radio_on = true\n", __func__);
1002 }
1003
1004 return ret;
1005 }
1006
1007 static int set_bssid(struct usbnet *usbdev, const u8 *bssid)
1008 {
1009 int ret;
1010
1011 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_BSSID,
1012 bssid, ETH_ALEN);
1013 if (ret < 0) {
1014 netdev_warn(usbdev->net, "setting BSSID[%pM] failed (%08X)\n",
1015 bssid, ret);
1016 return ret;
1017 }
1018
1019 return ret;
1020 }
1021
1022 static int clear_bssid(struct usbnet *usbdev)
1023 {
1024 static const u8 broadcast_mac[ETH_ALEN] = {
1025 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
1026 };
1027
1028 return set_bssid(usbdev, broadcast_mac);
1029 }
1030
1031 static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
1032 {
1033 int ret, len;
1034
1035 len = ETH_ALEN;
1036 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID,
1037 bssid, &len);
1038
1039 if (ret != 0)
1040 memset(bssid, 0, ETH_ALEN);
1041
1042 return ret;
1043 }
1044
1045 static int get_association_info(struct usbnet *usbdev,
1046 struct ndis_80211_assoc_info *info, int len)
1047 {
1048 return rndis_query_oid(usbdev,
1049 RNDIS_OID_802_11_ASSOCIATION_INFORMATION,
1050 info, &len);
1051 }
1052
1053 static bool is_associated(struct usbnet *usbdev)
1054 {
1055 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1056 u8 bssid[ETH_ALEN];
1057 int ret;
1058
1059 if (!priv->radio_on)
1060 return false;
1061
1062 ret = get_bssid(usbdev, bssid);
1063
1064 return (ret == 0 && !is_zero_ether_addr(bssid));
1065 }
1066
1067 static int disassociate(struct usbnet *usbdev, bool reset_ssid)
1068 {
1069 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1070 struct ndis_80211_ssid ssid;
1071 int i, ret = 0;
1072
1073 if (priv->radio_on) {
1074 ret = rndis_set_oid(usbdev,
1075 RNDIS_OID_802_11_DISASSOCIATE,
1076 NULL, 0);
1077 if (ret == 0) {
1078 priv->radio_on = false;
1079 netdev_dbg(usbdev->net, "%s(): radio_on = false\n",
1080 __func__);
1081
1082 if (reset_ssid)
1083 msleep(100);
1084 }
1085 }
1086
1087 /* disassociate causes radio to be turned off; if reset_ssid
1088 * is given, set random ssid to enable radio */
1089 if (reset_ssid) {
1090 /* Set device to infrastructure mode so we don't get ad-hoc
1091 * 'media connect' indications with the random ssid.
1092 */
1093 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1094
1095 ssid.length = cpu_to_le32(sizeof(ssid.essid));
1096 get_random_bytes(&ssid.essid[2], sizeof(ssid.essid)-2);
1097 ssid.essid[0] = 0x1;
1098 ssid.essid[1] = 0xff;
1099 for (i = 2; i < sizeof(ssid.essid); i++)
1100 ssid.essid[i] = 0x1 + (ssid.essid[i] * 0xfe / 0xff);
1101 ret = set_essid(usbdev, &ssid);
1102 }
1103 return ret;
1104 }
1105
1106 static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
1107 enum nl80211_auth_type auth_type, int keymgmt)
1108 {
1109 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1110 __le32 tmp;
1111 int auth_mode, ret;
1112
1113 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x authalg=0x%x keymgmt=0x%x\n",
1114 __func__, wpa_version, auth_type, keymgmt);
1115
1116 if (wpa_version & NL80211_WPA_VERSION_2) {
1117 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1118 auth_mode = NDIS_80211_AUTH_WPA2;
1119 else
1120 auth_mode = NDIS_80211_AUTH_WPA2_PSK;
1121 } else if (wpa_version & NL80211_WPA_VERSION_1) {
1122 if (keymgmt & RNDIS_WLAN_KEY_MGMT_802_1X)
1123 auth_mode = NDIS_80211_AUTH_WPA;
1124 else if (keymgmt & RNDIS_WLAN_KEY_MGMT_PSK)
1125 auth_mode = NDIS_80211_AUTH_WPA_PSK;
1126 else
1127 auth_mode = NDIS_80211_AUTH_WPA_NONE;
1128 } else if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1129 auth_mode = NDIS_80211_AUTH_SHARED;
1130 else if (auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1131 auth_mode = NDIS_80211_AUTH_OPEN;
1132 else if (auth_type == NL80211_AUTHTYPE_AUTOMATIC)
1133 auth_mode = NDIS_80211_AUTH_AUTO_SWITCH;
1134 else
1135 return -ENOTSUPP;
1136
1137 tmp = cpu_to_le32(auth_mode);
1138 ret = rndis_set_oid(usbdev,
1139 RNDIS_OID_802_11_AUTHENTICATION_MODE,
1140 &tmp, sizeof(tmp));
1141 if (ret != 0) {
1142 netdev_warn(usbdev->net, "setting auth mode failed (%08X)\n",
1143 ret);
1144 return ret;
1145 }
1146
1147 priv->wpa_version = wpa_version;
1148
1149 return 0;
1150 }
1151
1152 static int set_priv_filter(struct usbnet *usbdev)
1153 {
1154 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1155 __le32 tmp;
1156
1157 netdev_dbg(usbdev->net, "%s(): wpa_version=0x%x\n",
1158 __func__, priv->wpa_version);
1159
1160 if (priv->wpa_version & NL80211_WPA_VERSION_2 ||
1161 priv->wpa_version & NL80211_WPA_VERSION_1)
1162 tmp = cpu_to_le32(NDIS_80211_PRIV_8021X_WEP);
1163 else
1164 tmp = cpu_to_le32(NDIS_80211_PRIV_ACCEPT_ALL);
1165
1166 return rndis_set_oid(usbdev,
1167 RNDIS_OID_802_11_PRIVACY_FILTER, &tmp,
1168 sizeof(tmp));
1169 }
1170
1171 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
1172 {
1173 __le32 tmp;
1174 int encr_mode, ret;
1175
1176 netdev_dbg(usbdev->net, "%s(): cipher_pair=0x%x cipher_group=0x%x\n",
1177 __func__, pairwise, groupwise);
1178
1179 if (pairwise & RNDIS_WLAN_ALG_CCMP)
1180 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1181 else if (pairwise & RNDIS_WLAN_ALG_TKIP)
1182 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1183 else if (pairwise & RNDIS_WLAN_ALG_WEP)
1184 encr_mode = NDIS_80211_ENCR_WEP_ENABLED;
1185 else if (groupwise & RNDIS_WLAN_ALG_CCMP)
1186 encr_mode = NDIS_80211_ENCR_CCMP_ENABLED;
1187 else if (groupwise & RNDIS_WLAN_ALG_TKIP)
1188 encr_mode = NDIS_80211_ENCR_TKIP_ENABLED;
1189 else
1190 encr_mode = NDIS_80211_ENCR_DISABLED;
1191
1192 tmp = cpu_to_le32(encr_mode);
1193 ret = rndis_set_oid(usbdev,
1194 RNDIS_OID_802_11_ENCRYPTION_STATUS, &tmp,
1195 sizeof(tmp));
1196 if (ret != 0) {
1197 netdev_warn(usbdev->net, "setting encr mode failed (%08X)\n",
1198 ret);
1199 return ret;
1200 }
1201
1202 return 0;
1203 }
1204
1205 static int set_infra_mode(struct usbnet *usbdev, int mode)
1206 {
1207 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1208 __le32 tmp;
1209 int ret;
1210
1211 netdev_dbg(usbdev->net, "%s(): infra_mode=0x%x\n",
1212 __func__, priv->infra_mode);
1213
1214 tmp = cpu_to_le32(mode);
1215 ret = rndis_set_oid(usbdev,
1216 RNDIS_OID_802_11_INFRASTRUCTURE_MODE,
1217 &tmp, sizeof(tmp));
1218 if (ret != 0) {
1219 netdev_warn(usbdev->net, "setting infra mode failed (%08X)\n",
1220 ret);
1221 return ret;
1222 }
1223
1224 /* NDIS drivers clear keys when infrastructure mode is
1225 * changed. But Linux tools assume otherwise. So set the
1226 * keys */
1227 restore_keys(usbdev);
1228
1229 priv->infra_mode = mode;
1230 return 0;
1231 }
1232
1233 static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
1234 {
1235 __le32 tmp;
1236
1237 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
1238
1239 if (rts_threshold < 0 || rts_threshold > 2347)
1240 rts_threshold = 2347;
1241
1242 tmp = cpu_to_le32(rts_threshold);
1243 return rndis_set_oid(usbdev,
1244 RNDIS_OID_802_11_RTS_THRESHOLD,
1245 &tmp, sizeof(tmp));
1246 }
1247
1248 static int set_frag_threshold(struct usbnet *usbdev, u32 frag_threshold)
1249 {
1250 __le32 tmp;
1251
1252 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, frag_threshold);
1253
1254 if (frag_threshold < 256 || frag_threshold > 2346)
1255 frag_threshold = 2346;
1256
1257 tmp = cpu_to_le32(frag_threshold);
1258 return rndis_set_oid(usbdev,
1259 RNDIS_OID_802_11_FRAGMENTATION_THRESHOLD,
1260 &tmp, sizeof(tmp));
1261 }
1262
1263 static void set_default_iw_params(struct usbnet *usbdev)
1264 {
1265 set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
1266 set_auth_mode(usbdev, 0, NL80211_AUTHTYPE_OPEN_SYSTEM,
1267 RNDIS_WLAN_KEY_MGMT_NONE);
1268 set_priv_filter(usbdev);
1269 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1270 }
1271
1272 static int deauthenticate(struct usbnet *usbdev)
1273 {
1274 int ret;
1275
1276 ret = disassociate(usbdev, true);
1277 set_default_iw_params(usbdev);
1278 return ret;
1279 }
1280
1281 static int set_channel(struct usbnet *usbdev, int channel)
1282 {
1283 struct ndis_80211_conf config;
1284 unsigned int dsconfig;
1285 int len, ret;
1286
1287 netdev_dbg(usbdev->net, "%s(%d)\n", __func__, channel);
1288
1289 /* this OID is valid only when not associated */
1290 if (is_associated(usbdev))
1291 return 0;
1292
1293 dsconfig = 1000 *
1294 ieee80211_channel_to_frequency(channel, IEEE80211_BAND_2GHZ);
1295
1296 len = sizeof(config);
1297 ret = rndis_query_oid(usbdev,
1298 RNDIS_OID_802_11_CONFIGURATION,
1299 &config, &len);
1300 if (ret < 0) {
1301 netdev_dbg(usbdev->net, "%s(): querying configuration failed\n",
1302 __func__);
1303 return ret;
1304 }
1305
1306 config.ds_config = cpu_to_le32(dsconfig);
1307 ret = rndis_set_oid(usbdev,
1308 RNDIS_OID_802_11_CONFIGURATION,
1309 &config, sizeof(config));
1310
1311 netdev_dbg(usbdev->net, "%s(): %d -> %d\n", __func__, channel, ret);
1312
1313 return ret;
1314 }
1315
1316 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
1317 u32 *beacon_period)
1318 {
1319 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1320 struct ieee80211_channel *channel;
1321 struct ndis_80211_conf config;
1322 int len, ret;
1323
1324 /* Get channel and beacon interval */
1325 len = sizeof(config);
1326 ret = rndis_query_oid(usbdev,
1327 RNDIS_OID_802_11_CONFIGURATION,
1328 &config, &len);
1329 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_CONFIGURATION -> %d\n",
1330 __func__, ret);
1331 if (ret < 0)
1332 return NULL;
1333
1334 channel = ieee80211_get_channel(priv->wdev.wiphy,
1335 KHZ_TO_MHZ(le32_to_cpu(config.ds_config)));
1336 if (!channel)
1337 return NULL;
1338
1339 if (beacon_period)
1340 *beacon_period = le32_to_cpu(config.beacon_period);
1341 return channel;
1342 }
1343
1344 /* index must be 0 - N, as per NDIS */
1345 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
1346 u8 index)
1347 {
1348 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1349 struct ndis_80211_wep_key ndis_key;
1350 u32 cipher;
1351 int ret;
1352
1353 netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
1354 __func__, index, key_len);
1355
1356 if (index >= RNDIS_WLAN_NUM_KEYS)
1357 return -EINVAL;
1358
1359 if (key_len == 5)
1360 cipher = WLAN_CIPHER_SUITE_WEP40;
1361 else if (key_len == 13)
1362 cipher = WLAN_CIPHER_SUITE_WEP104;
1363 else
1364 return -EINVAL;
1365
1366 memset(&ndis_key, 0, sizeof(ndis_key));
1367
1368 ndis_key.size = cpu_to_le32(sizeof(ndis_key));
1369 ndis_key.length = cpu_to_le32(key_len);
1370 ndis_key.index = cpu_to_le32(index);
1371 memcpy(&ndis_key.material, key, key_len);
1372
1373 if (index == priv->encr_tx_key_index) {
1374 ndis_key.index |= NDIS_80211_ADDWEP_TRANSMIT_KEY;
1375 ret = set_encr_mode(usbdev, RNDIS_WLAN_ALG_WEP,
1376 RNDIS_WLAN_ALG_NONE);
1377 if (ret)
1378 netdev_warn(usbdev->net, "encryption couldn't be enabled (%08X)\n",
1379 ret);
1380 }
1381
1382 ret = rndis_set_oid(usbdev,
1383 RNDIS_OID_802_11_ADD_WEP, &ndis_key,
1384 sizeof(ndis_key));
1385 if (ret != 0) {
1386 netdev_warn(usbdev->net, "adding encryption key %d failed (%08X)\n",
1387 index + 1, ret);
1388 return ret;
1389 }
1390
1391 priv->encr_keys[index].len = key_len;
1392 priv->encr_keys[index].cipher = cipher;
1393 memcpy(&priv->encr_keys[index].material, key, key_len);
1394 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1395
1396 return 0;
1397 }
1398
1399 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
1400 u8 index, const u8 *addr, const u8 *rx_seq,
1401 int seq_len, u32 cipher, __le32 flags)
1402 {
1403 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1404 struct ndis_80211_key ndis_key;
1405 bool is_addr_ok;
1406 int ret;
1407
1408 if (index >= RNDIS_WLAN_NUM_KEYS) {
1409 netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
1410 __func__, index);
1411 return -EINVAL;
1412 }
1413 if (key_len > sizeof(ndis_key.material) || key_len < 0) {
1414 netdev_dbg(usbdev->net, "%s(): key length out of range (%i)\n",
1415 __func__, key_len);
1416 return -EINVAL;
1417 }
1418 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ) {
1419 if (!rx_seq || seq_len <= 0) {
1420 netdev_dbg(usbdev->net, "%s(): recv seq flag without buffer\n",
1421 __func__);
1422 return -EINVAL;
1423 }
1424 if (rx_seq && seq_len > sizeof(ndis_key.rsc)) {
1425 netdev_dbg(usbdev->net, "%s(): too big recv seq buffer\n", __func__);
1426 return -EINVAL;
1427 }
1428 }
1429
1430 is_addr_ok = addr && !is_zero_ether_addr(addr) &&
1431 !is_broadcast_ether_addr(addr);
1432 if ((flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) && !is_addr_ok) {
1433 netdev_dbg(usbdev->net, "%s(): pairwise but bssid invalid (%pM)\n",
1434 __func__, addr);
1435 return -EINVAL;
1436 }
1437
1438 netdev_dbg(usbdev->net, "%s(%i): flags:%i%i%i\n",
1439 __func__, index,
1440 !!(flags & NDIS_80211_ADDKEY_TRANSMIT_KEY),
1441 !!(flags & NDIS_80211_ADDKEY_PAIRWISE_KEY),
1442 !!(flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ));
1443
1444 memset(&ndis_key, 0, sizeof(ndis_key));
1445
1446 ndis_key.size = cpu_to_le32(sizeof(ndis_key) -
1447 sizeof(ndis_key.material) + key_len);
1448 ndis_key.length = cpu_to_le32(key_len);
1449 ndis_key.index = cpu_to_le32(index) | flags;
1450
1451 if (cipher == WLAN_CIPHER_SUITE_TKIP && key_len == 32) {
1452 /* wpa_supplicant gives us the Michael MIC RX/TX keys in
1453 * different order than NDIS spec, so swap the order here. */
1454 memcpy(ndis_key.material, key, 16);
1455 memcpy(ndis_key.material + 16, key + 24, 8);
1456 memcpy(ndis_key.material + 24, key + 16, 8);
1457 } else
1458 memcpy(ndis_key.material, key, key_len);
1459
1460 if (flags & NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ)
1461 memcpy(ndis_key.rsc, rx_seq, seq_len);
1462
1463 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY) {
1464 /* pairwise key */
1465 memcpy(ndis_key.bssid, addr, ETH_ALEN);
1466 } else {
1467 /* group key */
1468 if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
1469 memset(ndis_key.bssid, 0xff, ETH_ALEN);
1470 else
1471 get_bssid(usbdev, ndis_key.bssid);
1472 }
1473
1474 ret = rndis_set_oid(usbdev,
1475 RNDIS_OID_802_11_ADD_KEY, &ndis_key,
1476 le32_to_cpu(ndis_key.size));
1477 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_ADD_KEY -> %08X\n",
1478 __func__, ret);
1479 if (ret != 0)
1480 return ret;
1481
1482 memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
1483 priv->encr_keys[index].len = key_len;
1484 priv->encr_keys[index].cipher = cipher;
1485 memcpy(&priv->encr_keys[index].material, key, key_len);
1486 if (flags & NDIS_80211_ADDKEY_PAIRWISE_KEY)
1487 memcpy(&priv->encr_keys[index].bssid, ndis_key.bssid, ETH_ALEN);
1488 else
1489 memset(&priv->encr_keys[index].bssid, 0xff, ETH_ALEN);
1490
1491 if (flags & NDIS_80211_ADDKEY_TRANSMIT_KEY)
1492 priv->encr_tx_key_index = index;
1493
1494 return 0;
1495 }
1496
1497 static int restore_key(struct usbnet *usbdev, u8 key_idx)
1498 {
1499 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1500 struct rndis_wlan_encr_key key;
1501
1502 if (is_wpa_key(priv, key_idx))
1503 return 0;
1504
1505 key = priv->encr_keys[key_idx];
1506
1507 netdev_dbg(usbdev->net, "%s(): %i:%i\n", __func__, key_idx, key.len);
1508
1509 if (key.len == 0)
1510 return 0;
1511
1512 return add_wep_key(usbdev, key.material, key.len, key_idx);
1513 }
1514
1515 static void restore_keys(struct usbnet *usbdev)
1516 {
1517 int i;
1518
1519 for (i = 0; i < 4; i++)
1520 restore_key(usbdev, i);
1521 }
1522
1523 static void clear_key(struct rndis_wlan_private *priv, u8 idx)
1524 {
1525 memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
1526 }
1527
1528 /* remove_key is for both wep and wpa */
1529 static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
1530 {
1531 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1532 struct ndis_80211_remove_key remove_key;
1533 __le32 keyindex;
1534 bool is_wpa;
1535 int ret;
1536
1537 if (index >= RNDIS_WLAN_NUM_KEYS)
1538 return -ENOENT;
1539
1540 if (priv->encr_keys[index].len == 0)
1541 return 0;
1542
1543 is_wpa = is_wpa_key(priv, index);
1544
1545 netdev_dbg(usbdev->net, "%s(): %i:%s:%i\n",
1546 __func__, index, is_wpa ? "wpa" : "wep",
1547 priv->encr_keys[index].len);
1548
1549 clear_key(priv, index);
1550
1551 if (is_wpa) {
1552 remove_key.size = cpu_to_le32(sizeof(remove_key));
1553 remove_key.index = cpu_to_le32(index);
1554 if (bssid) {
1555 /* pairwise key */
1556 if (!is_broadcast_ether_addr(bssid))
1557 remove_key.index |=
1558 NDIS_80211_ADDKEY_PAIRWISE_KEY;
1559 memcpy(remove_key.bssid, bssid,
1560 sizeof(remove_key.bssid));
1561 } else
1562 memset(remove_key.bssid, 0xff,
1563 sizeof(remove_key.bssid));
1564
1565 ret = rndis_set_oid(usbdev,
1566 RNDIS_OID_802_11_REMOVE_KEY,
1567 &remove_key, sizeof(remove_key));
1568 if (ret != 0)
1569 return ret;
1570 } else {
1571 keyindex = cpu_to_le32(index);
1572 ret = rndis_set_oid(usbdev,
1573 RNDIS_OID_802_11_REMOVE_WEP,
1574 &keyindex, sizeof(keyindex));
1575 if (ret != 0) {
1576 netdev_warn(usbdev->net,
1577 "removing encryption key %d failed (%08X)\n",
1578 index, ret);
1579 return ret;
1580 }
1581 }
1582
1583 /* if it is transmit key, disable encryption */
1584 if (index == priv->encr_tx_key_index)
1585 set_encr_mode(usbdev, RNDIS_WLAN_ALG_NONE, RNDIS_WLAN_ALG_NONE);
1586
1587 return 0;
1588 }
1589
1590 static void set_multicast_list(struct usbnet *usbdev)
1591 {
1592 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1593 struct netdev_hw_addr *ha;
1594 __le32 filter, basefilter;
1595 int ret;
1596 char *mc_addrs = NULL;
1597 int mc_count;
1598
1599 basefilter = filter = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED |
1600 RNDIS_PACKET_TYPE_BROADCAST);
1601
1602 if (usbdev->net->flags & IFF_PROMISC) {
1603 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_PROMISCUOUS |
1604 RNDIS_PACKET_TYPE_ALL_LOCAL);
1605 } else if (usbdev->net->flags & IFF_ALLMULTI) {
1606 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1607 }
1608
1609 if (filter != basefilter)
1610 goto set_filter;
1611
1612 /*
1613 * mc_list should be accessed holding the lock, so copy addresses to
1614 * local buffer first.
1615 */
1616 netif_addr_lock_bh(usbdev->net);
1617 mc_count = netdev_mc_count(usbdev->net);
1618 if (mc_count > priv->multicast_size) {
1619 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1620 } else if (mc_count) {
1621 int i = 0;
1622
1623 mc_addrs = kmalloc_array(mc_count, ETH_ALEN, GFP_ATOMIC);
1624 if (!mc_addrs) {
1625 netif_addr_unlock_bh(usbdev->net);
1626 return;
1627 }
1628
1629 netdev_for_each_mc_addr(ha, usbdev->net)
1630 memcpy(mc_addrs + i++ * ETH_ALEN,
1631 ha->addr, ETH_ALEN);
1632 }
1633 netif_addr_unlock_bh(usbdev->net);
1634
1635 if (filter != basefilter)
1636 goto set_filter;
1637
1638 if (mc_count) {
1639 ret = rndis_set_oid(usbdev,
1640 RNDIS_OID_802_3_MULTICAST_LIST,
1641 mc_addrs, mc_count * ETH_ALEN);
1642 kfree(mc_addrs);
1643 if (ret == 0)
1644 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_MULTICAST);
1645 else
1646 filter |= cpu_to_le32(RNDIS_PACKET_TYPE_ALL_MULTICAST);
1647
1648 netdev_dbg(usbdev->net, "RNDIS_OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d\n",
1649 mc_count, priv->multicast_size, ret);
1650 }
1651
1652 set_filter:
1653 ret = rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
1654 sizeof(filter));
1655 if (ret < 0) {
1656 netdev_warn(usbdev->net, "couldn't set packet filter: %08x\n",
1657 le32_to_cpu(filter));
1658 }
1659
1660 netdev_dbg(usbdev->net, "RNDIS_OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d\n",
1661 le32_to_cpu(filter), ret);
1662 }
1663
1664 #ifdef DEBUG
1665 static void debug_print_pmkids(struct usbnet *usbdev,
1666 struct ndis_80211_pmkid *pmkids,
1667 const char *func_str)
1668 {
1669 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1670 int i, len, count, max_pmkids, entry_len;
1671
1672 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1673 len = le32_to_cpu(pmkids->length);
1674 count = le32_to_cpu(pmkids->bssid_info_count);
1675
1676 entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
1677
1678 netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
1679 "%d)\n", func_str, count, len, entry_len);
1680
1681 if (count > max_pmkids)
1682 count = max_pmkids;
1683
1684 for (i = 0; i < count; i++) {
1685 u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
1686
1687 netdev_dbg(usbdev->net, "%s(): bssid: %pM, "
1688 "pmkid: %08X:%08X:%08X:%08X\n",
1689 func_str, pmkids->bssid_info[i].bssid,
1690 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
1691 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
1692 }
1693 }
1694 #else
1695 static void debug_print_pmkids(struct usbnet *usbdev,
1696 struct ndis_80211_pmkid *pmkids,
1697 const char *func_str)
1698 {
1699 return;
1700 }
1701 #endif
1702
1703 static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
1704 {
1705 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1706 struct ndis_80211_pmkid *pmkids;
1707 int len, ret, max_pmkids;
1708
1709 max_pmkids = priv->wdev.wiphy->max_num_pmkids;
1710 len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
1711
1712 pmkids = kzalloc(len, GFP_KERNEL);
1713 if (!pmkids)
1714 return ERR_PTR(-ENOMEM);
1715
1716 pmkids->length = cpu_to_le32(len);
1717 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1718
1719 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_PMKID,
1720 pmkids, &len);
1721 if (ret < 0) {
1722 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d)"
1723 " -> %d\n", __func__, len, max_pmkids, ret);
1724
1725 kfree(pmkids);
1726 return ERR_PTR(ret);
1727 }
1728
1729 if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
1730 pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
1731
1732 debug_print_pmkids(usbdev, pmkids, __func__);
1733
1734 return pmkids;
1735 }
1736
1737 static int set_device_pmkids(struct usbnet *usbdev,
1738 struct ndis_80211_pmkid *pmkids)
1739 {
1740 int ret, len, num_pmkids;
1741
1742 num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
1743 len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
1744 pmkids->length = cpu_to_le32(len);
1745
1746 debug_print_pmkids(usbdev, pmkids, __func__);
1747
1748 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, pmkids,
1749 le32_to_cpu(pmkids->length));
1750 if (ret < 0) {
1751 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_PMKID(%d, %d) -> %d"
1752 "\n", __func__, len, num_pmkids, ret);
1753 }
1754
1755 kfree(pmkids);
1756 return ret;
1757 }
1758
1759 static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
1760 struct ndis_80211_pmkid *pmkids,
1761 struct cfg80211_pmksa *pmksa,
1762 int max_pmkids)
1763 {
1764 int i, newlen, err;
1765 unsigned int count;
1766
1767 count = le32_to_cpu(pmkids->bssid_info_count);
1768
1769 if (count > max_pmkids)
1770 count = max_pmkids;
1771
1772 for (i = 0; i < count; i++)
1773 if (ether_addr_equal(pmkids->bssid_info[i].bssid,
1774 pmksa->bssid))
1775 break;
1776
1777 /* pmkid not found */
1778 if (i == count) {
1779 netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
1780 __func__, pmksa->bssid);
1781 err = -ENOENT;
1782 goto error;
1783 }
1784
1785 for (; i + 1 < count; i++)
1786 pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
1787
1788 count--;
1789 newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
1790
1791 pmkids->length = cpu_to_le32(newlen);
1792 pmkids->bssid_info_count = cpu_to_le32(count);
1793
1794 return pmkids;
1795 error:
1796 kfree(pmkids);
1797 return ERR_PTR(err);
1798 }
1799
1800 static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
1801 struct ndis_80211_pmkid *pmkids,
1802 struct cfg80211_pmksa *pmksa,
1803 int max_pmkids)
1804 {
1805 struct ndis_80211_pmkid *new_pmkids;
1806 int i, err, newlen;
1807 unsigned int count;
1808
1809 count = le32_to_cpu(pmkids->bssid_info_count);
1810
1811 if (count > max_pmkids)
1812 count = max_pmkids;
1813
1814 /* update with new pmkid */
1815 for (i = 0; i < count; i++) {
1816 if (!ether_addr_equal(pmkids->bssid_info[i].bssid,
1817 pmksa->bssid))
1818 continue;
1819
1820 memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
1821 WLAN_PMKID_LEN);
1822
1823 return pmkids;
1824 }
1825
1826 /* out of space, return error */
1827 if (i == max_pmkids) {
1828 netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
1829 err = -ENOSPC;
1830 goto error;
1831 }
1832
1833 /* add new pmkid */
1834 newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
1835
1836 new_pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
1837 if (!new_pmkids) {
1838 err = -ENOMEM;
1839 goto error;
1840 }
1841 pmkids = new_pmkids;
1842
1843 pmkids->length = cpu_to_le32(newlen);
1844 pmkids->bssid_info_count = cpu_to_le32(count + 1);
1845
1846 memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
1847 memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
1848
1849 return pmkids;
1850 error:
1851 kfree(pmkids);
1852 return ERR_PTR(err);
1853 }
1854
1855 /*
1856 * cfg80211 ops
1857 */
1858 static int rndis_change_virtual_intf(struct wiphy *wiphy,
1859 struct net_device *dev,
1860 enum nl80211_iftype type, u32 *flags,
1861 struct vif_params *params)
1862 {
1863 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1864 struct usbnet *usbdev = priv->usbdev;
1865 int mode;
1866
1867 switch (type) {
1868 case NL80211_IFTYPE_ADHOC:
1869 mode = NDIS_80211_INFRA_ADHOC;
1870 break;
1871 case NL80211_IFTYPE_STATION:
1872 mode = NDIS_80211_INFRA_INFRA;
1873 break;
1874 default:
1875 return -EINVAL;
1876 }
1877
1878 priv->wdev.iftype = type;
1879
1880 return set_infra_mode(usbdev, mode);
1881 }
1882
1883 static int rndis_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1884 {
1885 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1886 struct usbnet *usbdev = priv->usbdev;
1887 int err;
1888
1889 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1890 err = set_frag_threshold(usbdev, wiphy->frag_threshold);
1891 if (err < 0)
1892 return err;
1893 }
1894
1895 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1896 err = set_rts_threshold(usbdev, wiphy->rts_threshold);
1897 if (err < 0)
1898 return err;
1899 }
1900
1901 return 0;
1902 }
1903
1904 static int rndis_set_tx_power(struct wiphy *wiphy,
1905 struct wireless_dev *wdev,
1906 enum nl80211_tx_power_setting type,
1907 int mbm)
1908 {
1909 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1910 struct usbnet *usbdev = priv->usbdev;
1911
1912 netdev_dbg(usbdev->net, "%s(): type:0x%x mbm:%i\n",
1913 __func__, type, mbm);
1914
1915 if (mbm < 0 || (mbm % 100))
1916 return -ENOTSUPP;
1917
1918 /* Device doesn't support changing txpower after initialization, only
1919 * turn off/on radio. Support 'auto' mode and setting same dBm that is
1920 * currently used.
1921 */
1922 if (type == NL80211_TX_POWER_AUTOMATIC ||
1923 MBM_TO_DBM(mbm) == get_bcm4320_power_dbm(priv)) {
1924 if (!priv->radio_on)
1925 disassociate(usbdev, true); /* turn on radio */
1926
1927 return 0;
1928 }
1929
1930 return -ENOTSUPP;
1931 }
1932
1933 static int rndis_get_tx_power(struct wiphy *wiphy,
1934 struct wireless_dev *wdev,
1935 int *dbm)
1936 {
1937 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
1938 struct usbnet *usbdev = priv->usbdev;
1939
1940 *dbm = get_bcm4320_power_dbm(priv);
1941
1942 netdev_dbg(usbdev->net, "%s(): dbm:%i\n", __func__, *dbm);
1943
1944 return 0;
1945 }
1946
1947 #define SCAN_DELAY_JIFFIES (6 * HZ)
1948 static int rndis_scan(struct wiphy *wiphy,
1949 struct cfg80211_scan_request *request)
1950 {
1951 struct net_device *dev = request->wdev->netdev;
1952 struct usbnet *usbdev = netdev_priv(dev);
1953 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1954 int ret;
1955 int delay = SCAN_DELAY_JIFFIES;
1956
1957 netdev_dbg(usbdev->net, "cfg80211.scan\n");
1958
1959 /* Get current bssid list from device before new scan, as new scan
1960 * clears internal bssid list.
1961 */
1962 rndis_check_bssid_list(usbdev, NULL, NULL);
1963
1964 if (priv->scan_request && priv->scan_request != request)
1965 return -EBUSY;
1966
1967 priv->scan_request = request;
1968
1969 ret = rndis_start_bssid_list_scan(usbdev);
1970 if (ret == 0) {
1971 if (priv->device_type == RNDIS_BCM4320A)
1972 delay = HZ;
1973
1974 /* Wait before retrieving scan results from device */
1975 queue_delayed_work(priv->workqueue, &priv->scan_work, delay);
1976 }
1977
1978 return ret;
1979 }
1980
1981 static bool rndis_bss_info_update(struct usbnet *usbdev,
1982 struct ndis_80211_bssid_ex *bssid)
1983 {
1984 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
1985 struct ieee80211_channel *channel;
1986 struct cfg80211_bss *bss;
1987 s32 signal;
1988 u64 timestamp;
1989 u16 capability;
1990 u16 beacon_interval;
1991 struct ndis_80211_fixed_ies *fixed;
1992 int ie_len, bssid_len;
1993 u8 *ie;
1994
1995 netdev_dbg(usbdev->net, " found bssid: '%.32s' [%pM], len: %d\n",
1996 bssid->ssid.essid, bssid->mac, le32_to_cpu(bssid->length));
1997
1998 /* parse bssid structure */
1999 bssid_len = le32_to_cpu(bssid->length);
2000
2001 if (bssid_len < sizeof(struct ndis_80211_bssid_ex) +
2002 sizeof(struct ndis_80211_fixed_ies))
2003 return NULL;
2004
2005 fixed = (struct ndis_80211_fixed_ies *)bssid->ies;
2006
2007 ie = (void *)(bssid->ies + sizeof(struct ndis_80211_fixed_ies));
2008 ie_len = min(bssid_len - (int)sizeof(*bssid),
2009 (int)le32_to_cpu(bssid->ie_length));
2010 ie_len -= sizeof(struct ndis_80211_fixed_ies);
2011 if (ie_len < 0)
2012 return NULL;
2013
2014 /* extract data for cfg80211_inform_bss */
2015 channel = ieee80211_get_channel(priv->wdev.wiphy,
2016 KHZ_TO_MHZ(le32_to_cpu(bssid->config.ds_config)));
2017 if (!channel)
2018 return NULL;
2019
2020 signal = level_to_qual(le32_to_cpu(bssid->rssi));
2021 timestamp = le64_to_cpu(*(__le64 *)fixed->timestamp);
2022 capability = le16_to_cpu(fixed->capabilities);
2023 beacon_interval = le16_to_cpu(fixed->beacon_interval);
2024
2025 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid->mac,
2026 timestamp, capability, beacon_interval, ie, ie_len, signal,
2027 GFP_KERNEL);
2028 cfg80211_put_bss(priv->wdev.wiphy, bss);
2029
2030 return (bss != NULL);
2031 }
2032
2033 static struct ndis_80211_bssid_ex *next_bssid_list_item(
2034 struct ndis_80211_bssid_ex *bssid,
2035 int *bssid_len, void *buf, int len)
2036 {
2037 void *buf_end, *bssid_end;
2038
2039 buf_end = (char *)buf + len;
2040 bssid_end = (char *)bssid + *bssid_len;
2041
2042 if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) {
2043 *bssid_len = 0;
2044 return NULL;
2045 } else {
2046 bssid = (void *)((char *)bssid + *bssid_len);
2047 *bssid_len = le32_to_cpu(bssid->length);
2048 return bssid;
2049 }
2050 }
2051
2052 static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid,
2053 int bssid_len, void *buf, int len)
2054 {
2055 void *buf_end, *bssid_end;
2056
2057 if (!bssid || bssid_len <= 0 || bssid_len > len)
2058 return false;
2059
2060 buf_end = (char *)buf + len;
2061 bssid_end = (char *)bssid + bssid_len;
2062
2063 return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0;
2064 }
2065
2066 static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid,
2067 bool *matched)
2068 {
2069 void *buf = NULL;
2070 struct ndis_80211_bssid_list_ex *bssid_list;
2071 struct ndis_80211_bssid_ex *bssid;
2072 int ret = -EINVAL, len, count, bssid_len, real_count, new_len;
2073
2074 netdev_dbg(usbdev->net, "%s()\n", __func__);
2075
2076 len = CONTROL_BUFFER_SIZE;
2077 resize_buf:
2078 buf = kzalloc(len, GFP_KERNEL);
2079 if (!buf) {
2080 ret = -ENOMEM;
2081 goto out;
2082 }
2083
2084 /* BSSID-list might have got bigger last time we checked, keep
2085 * resizing until it won't get any bigger.
2086 */
2087 new_len = len;
2088 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST,
2089 buf, &new_len);
2090 if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex))
2091 goto out;
2092
2093 if (new_len > len) {
2094 len = new_len;
2095 kfree(buf);
2096 goto resize_buf;
2097 }
2098
2099 len = new_len;
2100
2101 bssid_list = buf;
2102 count = le32_to_cpu(bssid_list->num_items);
2103 real_count = 0;
2104 netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len);
2105
2106 bssid_len = 0;
2107 bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len);
2108
2109 /* Device returns incorrect 'num_items'. Workaround by ignoring the
2110 * received 'num_items' and walking through full bssid buffer instead.
2111 */
2112 while (check_bssid_list_item(bssid, bssid_len, buf, len)) {
2113 if (rndis_bss_info_update(usbdev, bssid) && match_bssid &&
2114 matched) {
2115 if (ether_addr_equal(bssid->mac, match_bssid))
2116 *matched = true;
2117 }
2118
2119 real_count++;
2120 bssid = next_bssid_list_item(bssid, &bssid_len, buf, len);
2121 }
2122
2123 netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:"
2124 " %d\n", __func__, count, real_count);
2125
2126 out:
2127 kfree(buf);
2128 return ret;
2129 }
2130
2131 static void rndis_get_scan_results(struct work_struct *work)
2132 {
2133 struct rndis_wlan_private *priv =
2134 container_of(work, struct rndis_wlan_private, scan_work.work);
2135 struct usbnet *usbdev = priv->usbdev;
2136 int ret;
2137
2138 netdev_dbg(usbdev->net, "get_scan_results\n");
2139
2140 if (!priv->scan_request)
2141 return;
2142
2143 ret = rndis_check_bssid_list(usbdev, NULL, NULL);
2144
2145 cfg80211_scan_done(priv->scan_request, ret < 0);
2146
2147 priv->scan_request = NULL;
2148 }
2149
2150 static int rndis_connect(struct wiphy *wiphy, struct net_device *dev,
2151 struct cfg80211_connect_params *sme)
2152 {
2153 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2154 struct usbnet *usbdev = priv->usbdev;
2155 struct ieee80211_channel *channel = sme->channel;
2156 struct ndis_80211_ssid ssid;
2157 int pairwise = RNDIS_WLAN_ALG_NONE;
2158 int groupwise = RNDIS_WLAN_ALG_NONE;
2159 int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE;
2160 int length, i, ret, chan = -1;
2161
2162 if (channel)
2163 chan = ieee80211_frequency_to_channel(channel->center_freq);
2164
2165 groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group);
2166 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++)
2167 pairwise |=
2168 rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]);
2169
2170 if (sme->crypto.n_ciphers_pairwise > 0 &&
2171 pairwise == RNDIS_WLAN_ALG_NONE) {
2172 netdev_err(usbdev->net, "Unsupported pairwise cipher\n");
2173 return -ENOTSUPP;
2174 }
2175
2176 for (i = 0; i < sme->crypto.n_akm_suites; i++)
2177 keymgmt |=
2178 rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]);
2179
2180 if (sme->crypto.n_akm_suites > 0 &&
2181 keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) {
2182 netdev_err(usbdev->net, "Invalid keymgmt\n");
2183 return -ENOTSUPP;
2184 }
2185
2186 netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n",
2187 sme->ssid, sme->bssid, chan,
2188 sme->privacy, sme->crypto.wpa_versions, sme->auth_type,
2189 groupwise, pairwise, keymgmt);
2190
2191 if (is_associated(usbdev))
2192 disassociate(usbdev, false);
2193
2194 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA);
2195 if (ret < 0) {
2196 netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n",
2197 ret);
2198 goto err_turn_radio_on;
2199 }
2200
2201 ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type,
2202 keymgmt);
2203 if (ret < 0) {
2204 netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n",
2205 ret);
2206 goto err_turn_radio_on;
2207 }
2208
2209 set_priv_filter(usbdev);
2210
2211 ret = set_encr_mode(usbdev, pairwise, groupwise);
2212 if (ret < 0) {
2213 netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n",
2214 ret);
2215 goto err_turn_radio_on;
2216 }
2217
2218 if (channel) {
2219 ret = set_channel(usbdev, chan);
2220 if (ret < 0) {
2221 netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n",
2222 ret);
2223 goto err_turn_radio_on;
2224 }
2225 }
2226
2227 if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) {
2228 priv->encr_tx_key_index = sme->key_idx;
2229 ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx);
2230 if (ret < 0) {
2231 netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n",
2232 ret, sme->key_len, sme->key_idx);
2233 goto err_turn_radio_on;
2234 }
2235 }
2236
2237 if (sme->bssid && !is_zero_ether_addr(sme->bssid) &&
2238 !is_broadcast_ether_addr(sme->bssid)) {
2239 ret = set_bssid(usbdev, sme->bssid);
2240 if (ret < 0) {
2241 netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n",
2242 ret);
2243 goto err_turn_radio_on;
2244 }
2245 } else
2246 clear_bssid(usbdev);
2247
2248 length = sme->ssid_len;
2249 if (length > NDIS_802_11_LENGTH_SSID)
2250 length = NDIS_802_11_LENGTH_SSID;
2251
2252 memset(&ssid, 0, sizeof(ssid));
2253 ssid.length = cpu_to_le32(length);
2254 memcpy(ssid.essid, sme->ssid, length);
2255
2256 /* Pause and purge rx queue, so we don't pass packets before
2257 * 'media connect'-indication.
2258 */
2259 usbnet_pause_rx(usbdev);
2260 usbnet_purge_paused_rxq(usbdev);
2261
2262 ret = set_essid(usbdev, &ssid);
2263 if (ret < 0)
2264 netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret);
2265 return ret;
2266
2267 err_turn_radio_on:
2268 disassociate(usbdev, true);
2269
2270 return ret;
2271 }
2272
2273 static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev,
2274 u16 reason_code)
2275 {
2276 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2277 struct usbnet *usbdev = priv->usbdev;
2278
2279 netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code);
2280
2281 priv->connected = false;
2282 memset(priv->bssid, 0, ETH_ALEN);
2283
2284 return deauthenticate(usbdev);
2285 }
2286
2287 static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2288 struct cfg80211_ibss_params *params)
2289 {
2290 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2291 struct usbnet *usbdev = priv->usbdev;
2292 struct ieee80211_channel *channel = params->chandef.chan;
2293 struct ndis_80211_ssid ssid;
2294 enum nl80211_auth_type auth_type;
2295 int ret, alg, length, chan = -1;
2296
2297 if (channel)
2298 chan = ieee80211_frequency_to_channel(channel->center_freq);
2299
2300 /* TODO: How to handle ad-hoc encryption?
2301 * connect() has *key, join_ibss() doesn't. RNDIS requires key to be
2302 * pre-shared for encryption (open/shared/wpa), is key set before
2303 * join_ibss? Which auth_type to use (not in params)? What about WPA?
2304 */
2305 if (params->privacy) {
2306 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
2307 alg = RNDIS_WLAN_ALG_WEP;
2308 } else {
2309 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2310 alg = RNDIS_WLAN_ALG_NONE;
2311 }
2312
2313 netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n",
2314 params->ssid, params->bssid, chan, params->privacy);
2315
2316 if (is_associated(usbdev))
2317 disassociate(usbdev, false);
2318
2319 ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC);
2320 if (ret < 0) {
2321 netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n",
2322 ret);
2323 goto err_turn_radio_on;
2324 }
2325
2326 ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE);
2327 if (ret < 0) {
2328 netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n",
2329 ret);
2330 goto err_turn_radio_on;
2331 }
2332
2333 set_priv_filter(usbdev);
2334
2335 ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE);
2336 if (ret < 0) {
2337 netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n",
2338 ret);
2339 goto err_turn_radio_on;
2340 }
2341
2342 if (channel) {
2343 ret = set_channel(usbdev, chan);
2344 if (ret < 0) {
2345 netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n",
2346 ret);
2347 goto err_turn_radio_on;
2348 }
2349 }
2350
2351 if (params->bssid && !is_zero_ether_addr(params->bssid) &&
2352 !is_broadcast_ether_addr(params->bssid)) {
2353 ret = set_bssid(usbdev, params->bssid);
2354 if (ret < 0) {
2355 netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n",
2356 ret);
2357 goto err_turn_radio_on;
2358 }
2359 } else
2360 clear_bssid(usbdev);
2361
2362 length = params->ssid_len;
2363 if (length > NDIS_802_11_LENGTH_SSID)
2364 length = NDIS_802_11_LENGTH_SSID;
2365
2366 memset(&ssid, 0, sizeof(ssid));
2367 ssid.length = cpu_to_le32(length);
2368 memcpy(ssid.essid, params->ssid, length);
2369
2370 /* Don't need to pause rx queue for ad-hoc. */
2371 usbnet_purge_paused_rxq(usbdev);
2372 usbnet_resume_rx(usbdev);
2373
2374 ret = set_essid(usbdev, &ssid);
2375 if (ret < 0)
2376 netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n",
2377 ret);
2378 return ret;
2379
2380 err_turn_radio_on:
2381 disassociate(usbdev, true);
2382
2383 return ret;
2384 }
2385
2386 static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2387 {
2388 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2389 struct usbnet *usbdev = priv->usbdev;
2390
2391 netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n");
2392
2393 priv->connected = false;
2394 memset(priv->bssid, 0, ETH_ALEN);
2395
2396 return deauthenticate(usbdev);
2397 }
2398
2399 static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev,
2400 u8 key_index, bool pairwise, const u8 *mac_addr,
2401 struct key_params *params)
2402 {
2403 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2404 struct usbnet *usbdev = priv->usbdev;
2405 __le32 flags;
2406
2407 netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n",
2408 __func__, key_index, mac_addr, params->cipher);
2409
2410 switch (params->cipher) {
2411 case WLAN_CIPHER_SUITE_WEP40:
2412 case WLAN_CIPHER_SUITE_WEP104:
2413 return add_wep_key(usbdev, params->key, params->key_len,
2414 key_index);
2415 case WLAN_CIPHER_SUITE_TKIP:
2416 case WLAN_CIPHER_SUITE_CCMP:
2417 flags = 0;
2418
2419 if (params->seq && params->seq_len > 0)
2420 flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ;
2421 if (mac_addr)
2422 flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY |
2423 NDIS_80211_ADDKEY_TRANSMIT_KEY;
2424
2425 return add_wpa_key(usbdev, params->key, params->key_len,
2426 key_index, mac_addr, params->seq,
2427 params->seq_len, params->cipher, flags);
2428 default:
2429 netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n",
2430 __func__, params->cipher);
2431 return -ENOTSUPP;
2432 }
2433 }
2434
2435 static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev,
2436 u8 key_index, bool pairwise, const u8 *mac_addr)
2437 {
2438 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2439 struct usbnet *usbdev = priv->usbdev;
2440
2441 netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr);
2442
2443 return remove_key(usbdev, key_index, mac_addr);
2444 }
2445
2446 static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
2447 u8 key_index, bool unicast, bool multicast)
2448 {
2449 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2450 struct usbnet *usbdev = priv->usbdev;
2451 struct rndis_wlan_encr_key key;
2452
2453 netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index);
2454
2455 if (key_index >= RNDIS_WLAN_NUM_KEYS)
2456 return -ENOENT;
2457
2458 priv->encr_tx_key_index = key_index;
2459
2460 if (is_wpa_key(priv, key_index))
2461 return 0;
2462
2463 key = priv->encr_keys[key_index];
2464
2465 return add_wep_key(usbdev, key.material, key.len, key_index);
2466 }
2467
2468 static void rndis_fill_station_info(struct usbnet *usbdev,
2469 struct station_info *sinfo)
2470 {
2471 __le32 linkspeed, rssi;
2472 int ret, len;
2473
2474 memset(sinfo, 0, sizeof(*sinfo));
2475
2476 len = sizeof(linkspeed);
2477 ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len);
2478 if (ret == 0) {
2479 sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000;
2480 sinfo->filled |= STATION_INFO_TX_BITRATE;
2481 }
2482
2483 len = sizeof(rssi);
2484 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2485 &rssi, &len);
2486 if (ret == 0) {
2487 sinfo->signal = level_to_qual(le32_to_cpu(rssi));
2488 sinfo->filled |= STATION_INFO_SIGNAL;
2489 }
2490 }
2491
2492 static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
2493 u8 *mac, struct station_info *sinfo)
2494 {
2495 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2496 struct usbnet *usbdev = priv->usbdev;
2497
2498 if (!ether_addr_equal(priv->bssid, mac))
2499 return -ENOENT;
2500
2501 rndis_fill_station_info(usbdev, sinfo);
2502
2503 return 0;
2504 }
2505
2506 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
2507 int idx, u8 *mac, struct station_info *sinfo)
2508 {
2509 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2510 struct usbnet *usbdev = priv->usbdev;
2511
2512 if (idx != 0)
2513 return -ENOENT;
2514
2515 memcpy(mac, priv->bssid, ETH_ALEN);
2516
2517 rndis_fill_station_info(usbdev, sinfo);
2518
2519 return 0;
2520 }
2521
2522 static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2523 struct cfg80211_pmksa *pmksa)
2524 {
2525 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2526 struct usbnet *usbdev = priv->usbdev;
2527 struct ndis_80211_pmkid *pmkids;
2528 u32 *tmp = (u32 *)pmksa->pmkid;
2529
2530 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2531 pmksa->bssid,
2532 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2533 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2534
2535 pmkids = get_device_pmkids(usbdev);
2536 if (IS_ERR(pmkids)) {
2537 /* couldn't read PMKID cache from device */
2538 return PTR_ERR(pmkids);
2539 }
2540
2541 pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2542 if (IS_ERR(pmkids)) {
2543 /* not found, list full, etc */
2544 return PTR_ERR(pmkids);
2545 }
2546
2547 return set_device_pmkids(usbdev, pmkids);
2548 }
2549
2550 static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
2551 struct cfg80211_pmksa *pmksa)
2552 {
2553 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2554 struct usbnet *usbdev = priv->usbdev;
2555 struct ndis_80211_pmkid *pmkids;
2556 u32 *tmp = (u32 *)pmksa->pmkid;
2557
2558 netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
2559 pmksa->bssid,
2560 cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
2561 cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
2562
2563 pmkids = get_device_pmkids(usbdev);
2564 if (IS_ERR(pmkids)) {
2565 /* Couldn't read PMKID cache from device */
2566 return PTR_ERR(pmkids);
2567 }
2568
2569 pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
2570 if (IS_ERR(pmkids)) {
2571 /* not found, etc */
2572 return PTR_ERR(pmkids);
2573 }
2574
2575 return set_device_pmkids(usbdev, pmkids);
2576 }
2577
2578 static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
2579 {
2580 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2581 struct usbnet *usbdev = priv->usbdev;
2582 struct ndis_80211_pmkid pmkid;
2583
2584 netdev_dbg(usbdev->net, "%s()\n", __func__);
2585
2586 memset(&pmkid, 0, sizeof(pmkid));
2587
2588 pmkid.length = cpu_to_le32(sizeof(pmkid));
2589 pmkid.bssid_info_count = cpu_to_le32(0);
2590
2591 return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID,
2592 &pmkid, sizeof(pmkid));
2593 }
2594
2595 static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2596 bool enabled, int timeout)
2597 {
2598 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2599 struct usbnet *usbdev = priv->usbdev;
2600 int power_mode;
2601 __le32 mode;
2602 int ret;
2603
2604 if (priv->device_type != RNDIS_BCM4320B)
2605 return -ENOTSUPP;
2606
2607 netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__,
2608 enabled ? "enabled" : "disabled",
2609 timeout);
2610
2611 if (enabled)
2612 power_mode = NDIS_80211_POWER_MODE_FAST_PSP;
2613 else
2614 power_mode = NDIS_80211_POWER_MODE_CAM;
2615
2616 if (power_mode == priv->power_mode)
2617 return 0;
2618
2619 priv->power_mode = power_mode;
2620
2621 mode = cpu_to_le32(power_mode);
2622 ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE,
2623 &mode, sizeof(mode));
2624
2625 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n",
2626 __func__, ret);
2627
2628 return ret;
2629 }
2630
2631 static int rndis_set_cqm_rssi_config(struct wiphy *wiphy,
2632 struct net_device *dev,
2633 s32 rssi_thold, u32 rssi_hyst)
2634 {
2635 struct rndis_wlan_private *priv = wiphy_priv(wiphy);
2636
2637 priv->cqm_rssi_thold = rssi_thold;
2638 priv->cqm_rssi_hyst = rssi_hyst;
2639 priv->last_cqm_event_rssi = 0;
2640
2641 return 0;
2642 }
2643
2644 static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
2645 struct ndis_80211_assoc_info *info)
2646 {
2647 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2648 struct ieee80211_channel *channel;
2649 struct ndis_80211_ssid ssid;
2650 struct cfg80211_bss *bss;
2651 s32 signal;
2652 u64 timestamp;
2653 u16 capability;
2654 u32 beacon_period = 0;
2655 __le32 rssi;
2656 u8 ie_buf[34];
2657 int len, ret, ie_len;
2658
2659 /* Get signal quality, in case of error use rssi=0 and ignore error. */
2660 len = sizeof(rssi);
2661 rssi = 0;
2662 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
2663 &rssi, &len);
2664 signal = level_to_qual(le32_to_cpu(rssi));
2665
2666 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, "
2667 "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi),
2668 level_to_qual(le32_to_cpu(rssi)));
2669
2670 /* Get AP capabilities */
2671 if (info) {
2672 capability = le16_to_cpu(info->resp_ie.capa);
2673 } else {
2674 /* Set atleast ESS/IBSS capability */
2675 capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ?
2676 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS;
2677 }
2678
2679 /* Get channel and beacon interval */
2680 channel = get_current_channel(usbdev, &beacon_period);
2681 if (!channel) {
2682 netdev_warn(usbdev->net, "%s(): could not get channel.\n",
2683 __func__);
2684 return;
2685 }
2686
2687 /* Get SSID, in case of error, use zero length SSID and ignore error. */
2688 len = sizeof(ssid);
2689 memset(&ssid, 0, sizeof(ssid));
2690 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID,
2691 &ssid, &len);
2692 netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: "
2693 "'%.32s'\n", __func__, ret,
2694 le32_to_cpu(ssid.length), ssid.essid);
2695
2696 if (le32_to_cpu(ssid.length) > 32)
2697 ssid.length = cpu_to_le32(32);
2698
2699 ie_buf[0] = WLAN_EID_SSID;
2700 ie_buf[1] = le32_to_cpu(ssid.length);
2701 memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length));
2702
2703 ie_len = le32_to_cpu(ssid.length) + 2;
2704
2705 /* no tsf */
2706 timestamp = 0;
2707
2708 netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
2709 "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
2710 "signal:%d\n", __func__, (channel ? channel->center_freq : -1),
2711 bssid, (u32)timestamp, capability, beacon_period, ie_len,
2712 ssid.essid, signal);
2713
2714 bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
2715 timestamp, capability, beacon_period, ie_buf, ie_len,
2716 signal, GFP_KERNEL);
2717 cfg80211_put_bss(priv->wdev.wiphy, bss);
2718 }
2719
2720 /*
2721 * workers, indication handlers, device poller
2722 */
2723 static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
2724 {
2725 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2726 struct ndis_80211_assoc_info *info = NULL;
2727 u8 bssid[ETH_ALEN];
2728 unsigned int resp_ie_len, req_ie_len;
2729 unsigned int offset;
2730 u8 *req_ie, *resp_ie;
2731 int ret;
2732 bool roamed = false;
2733 bool match_bss;
2734
2735 if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) {
2736 /* received media connect indication while connected, either
2737 * device reassociated with same AP or roamed to new. */
2738 roamed = true;
2739 }
2740
2741 req_ie_len = 0;
2742 resp_ie_len = 0;
2743 req_ie = NULL;
2744 resp_ie = NULL;
2745
2746 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2747 info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
2748 if (!info) {
2749 /* No memory? Try resume work later */
2750 set_bit(WORK_LINK_UP, &priv->work_pending);
2751 queue_work(priv->workqueue, &priv->work);
2752 return;
2753 }
2754
2755 /* Get association info IEs from device. */
2756 ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
2757 if (!ret) {
2758 req_ie_len = le32_to_cpu(info->req_ie_length);
2759 if (req_ie_len > CONTROL_BUFFER_SIZE)
2760 req_ie_len = CONTROL_BUFFER_SIZE;
2761 if (req_ie_len != 0) {
2762 offset = le32_to_cpu(info->offset_req_ies);
2763
2764 if (offset > CONTROL_BUFFER_SIZE)
2765 offset = CONTROL_BUFFER_SIZE;
2766
2767 req_ie = (u8 *)info + offset;
2768
2769 if (offset + req_ie_len > CONTROL_BUFFER_SIZE)
2770 req_ie_len =
2771 CONTROL_BUFFER_SIZE - offset;
2772 }
2773
2774 resp_ie_len = le32_to_cpu(info->resp_ie_length);
2775 if (resp_ie_len > CONTROL_BUFFER_SIZE)
2776 resp_ie_len = CONTROL_BUFFER_SIZE;
2777 if (resp_ie_len != 0) {
2778 offset = le32_to_cpu(info->offset_resp_ies);
2779
2780 if (offset > CONTROL_BUFFER_SIZE)
2781 offset = CONTROL_BUFFER_SIZE;
2782
2783 resp_ie = (u8 *)info + offset;
2784
2785 if (offset + resp_ie_len > CONTROL_BUFFER_SIZE)
2786 resp_ie_len =
2787 CONTROL_BUFFER_SIZE - offset;
2788 }
2789 } else {
2790 /* Since rndis_wlan_craft_connected_bss() might use info
2791 * later and expects info to contain valid data if
2792 * non-null, free info and set NULL here.
2793 */
2794 kfree(info);
2795 info = NULL;
2796 }
2797 } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC))
2798 return;
2799
2800 ret = get_bssid(usbdev, bssid);
2801 if (ret < 0)
2802 memset(bssid, 0, sizeof(bssid));
2803
2804 netdev_dbg(usbdev->net, "link up work: [%pM]%s\n",
2805 bssid, roamed ? " roamed" : "");
2806
2807 /* Internal bss list in device should contain at least the currently
2808 * connected bss and we can get it to cfg80211 with
2809 * rndis_check_bssid_list().
2810 *
2811 * NDIS spec says: "If the device is associated, but the associated
2812 * BSSID is not in its BSSID scan list, then the driver must add an
2813 * entry for the BSSID at the end of the data that it returns in
2814 * response to query of RNDIS_OID_802_11_BSSID_LIST."
2815 *
2816 * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a.
2817 */
2818 match_bss = false;
2819 rndis_check_bssid_list(usbdev, bssid, &match_bss);
2820
2821 if (!is_zero_ether_addr(bssid) && !match_bss) {
2822 /* Couldn't get bss from device, we need to manually craft bss
2823 * for cfg80211.
2824 */
2825 rndis_wlan_craft_connected_bss(usbdev, bssid, info);
2826 }
2827
2828 if (priv->infra_mode == NDIS_80211_INFRA_INFRA) {
2829 if (!roamed)
2830 cfg80211_connect_result(usbdev->net, bssid, req_ie,
2831 req_ie_len, resp_ie,
2832 resp_ie_len, 0, GFP_KERNEL);
2833 else
2834 cfg80211_roamed(usbdev->net,
2835 get_current_channel(usbdev, NULL),
2836 bssid, req_ie, req_ie_len,
2837 resp_ie, resp_ie_len, GFP_KERNEL);
2838 } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC)
2839 cfg80211_ibss_joined(usbdev->net, bssid,
2840 get_current_channel(usbdev, NULL),
2841 GFP_KERNEL);
2842
2843 kfree(info);
2844
2845 priv->connected = true;
2846 memcpy(priv->bssid, bssid, ETH_ALEN);
2847
2848 usbnet_resume_rx(usbdev);
2849 netif_carrier_on(usbdev->net);
2850 }
2851
2852 static void rndis_wlan_do_link_down_work(struct usbnet *usbdev)
2853 {
2854 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2855
2856 if (priv->connected) {
2857 priv->connected = false;
2858 memset(priv->bssid, 0, ETH_ALEN);
2859
2860 deauthenticate(usbdev);
2861
2862 cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL);
2863 }
2864
2865 netif_carrier_off(usbdev->net);
2866 }
2867
2868 static void rndis_wlan_worker(struct work_struct *work)
2869 {
2870 struct rndis_wlan_private *priv =
2871 container_of(work, struct rndis_wlan_private, work);
2872 struct usbnet *usbdev = priv->usbdev;
2873
2874 if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending))
2875 rndis_wlan_do_link_up_work(usbdev);
2876
2877 if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending))
2878 rndis_wlan_do_link_down_work(usbdev);
2879
2880 if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2881 set_multicast_list(usbdev);
2882 }
2883
2884 static void rndis_wlan_set_multicast_list(struct net_device *dev)
2885 {
2886 struct usbnet *usbdev = netdev_priv(dev);
2887 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
2888
2889 if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
2890 return;
2891
2892 set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
2893 queue_work(priv->workqueue, &priv->work);
2894 }
2895
2896 static void rndis_wlan_auth_indication(struct usbnet *usbdev,
2897 struct ndis_80211_status_indication *indication,
2898 int len)
2899 {
2900 u8 *buf;
2901 const char *type;
2902 int flags, buflen, key_id;
2903 bool pairwise_error, group_error;
2904 struct ndis_80211_auth_request *auth_req;
2905 enum nl80211_key_type key_type;
2906
2907 /* must have at least one array entry */
2908 if (len < offsetof(struct ndis_80211_status_indication, u) +
2909 sizeof(struct ndis_80211_auth_request)) {
2910 netdev_info(usbdev->net, "authentication indication: too short message (%i)\n",
2911 len);
2912 return;
2913 }
2914
2915 buf = (void *)&indication->u.auth_request[0];
2916 buflen = len - offsetof(struct ndis_80211_status_indication, u);
2917
2918 while (buflen >= sizeof(*auth_req)) {
2919 auth_req = (void *)buf;
2920 type = "unknown";
2921 flags = le32_to_cpu(auth_req->flags);
2922 pairwise_error = false;
2923 group_error = false;
2924
2925 if (flags & 0x1)
2926 type = "reauth request";
2927 if (flags & 0x2)
2928 type = "key update request";
2929 if (flags & 0x6) {
2930 pairwise_error = true;
2931 type = "pairwise_error";
2932 }
2933 if (flags & 0xe) {
2934 group_error = true;
2935 type = "group_error";
2936 }
2937
2938 netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n",
2939 type, le32_to_cpu(auth_req->flags));
2940
2941 if (pairwise_error) {
2942 key_type = NL80211_KEYTYPE_PAIRWISE;
2943 key_id = -1;
2944
2945 cfg80211_michael_mic_failure(usbdev->net,
2946 auth_req->bssid,
2947 key_type, key_id, NULL,
2948 GFP_KERNEL);
2949 }
2950
2951 if (group_error) {
2952 key_type = NL80211_KEYTYPE_GROUP;
2953 key_id = -1;
2954
2955 cfg80211_michael_mic_failure(usbdev->net,
2956 auth_req->bssid,
2957 key_type, key_id, NULL,
2958 GFP_KERNEL);
2959 }
2960
2961 buflen -= le32_to_cpu(auth_req->length);
2962 buf += le32_to_cpu(auth_req->length);
2963 }
2964 }
2965
2966 static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev,
2967 struct ndis_80211_status_indication *indication,
2968 int len)
2969 {
2970 struct ndis_80211_pmkid_cand_list *cand_list;
2971 int list_len, expected_len, i;
2972
2973 if (len < offsetof(struct ndis_80211_status_indication, u) +
2974 sizeof(struct ndis_80211_pmkid_cand_list)) {
2975 netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n",
2976 len);
2977 return;
2978 }
2979
2980 list_len = le32_to_cpu(indication->u.cand_list.num_candidates) *
2981 sizeof(struct ndis_80211_pmkid_candidate);
2982 expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len +
2983 offsetof(struct ndis_80211_status_indication, u);
2984
2985 if (len < expected_len) {
2986 netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n",
2987 len, expected_len);
2988 return;
2989 }
2990
2991 cand_list = &indication->u.cand_list;
2992
2993 netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n",
2994 le32_to_cpu(cand_list->version),
2995 le32_to_cpu(cand_list->num_candidates));
2996
2997 if (le32_to_cpu(cand_list->version) != 1)
2998 return;
2999
3000 for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) {
3001 struct ndis_80211_pmkid_candidate *cand =
3002 &cand_list->candidate_list[i];
3003 bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH);
3004
3005 netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n",
3006 i, le32_to_cpu(cand->flags), preauth, cand->bssid);
3007
3008 cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid,
3009 preauth, GFP_ATOMIC);
3010 }
3011 }
3012
3013 static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
3014 struct rndis_indicate *msg, int buflen)
3015 {
3016 struct ndis_80211_status_indication *indication;
3017 unsigned int len, offset;
3018
3019 offset = offsetof(struct rndis_indicate, status) +
3020 le32_to_cpu(msg->offset);
3021 len = le32_to_cpu(msg->length);
3022
3023 if (len < 8) {
3024 netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n",
3025 len);
3026 return;
3027 }
3028
3029 if (len > buflen || offset > buflen || offset + len > buflen) {
3030 netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
3031 offset + len, buflen);
3032 return;
3033 }
3034
3035 indication = (void *)((u8 *)msg + offset);
3036
3037 switch (le32_to_cpu(indication->status_type)) {
3038 case NDIS_80211_STATUSTYPE_RADIOSTATE:
3039 netdev_info(usbdev->net, "radio state indication: %i\n",
3040 le32_to_cpu(indication->u.radio_status));
3041 return;
3042
3043 case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE:
3044 netdev_info(usbdev->net, "media stream mode indication: %i\n",
3045 le32_to_cpu(indication->u.media_stream_mode));
3046 return;
3047
3048 case NDIS_80211_STATUSTYPE_AUTHENTICATION:
3049 rndis_wlan_auth_indication(usbdev, indication, len);
3050 return;
3051
3052 case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST:
3053 rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len);
3054 return;
3055
3056 default:
3057 netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n",
3058 le32_to_cpu(indication->status_type));
3059 }
3060 }
3061
3062 static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
3063 {
3064 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3065 struct rndis_indicate *msg = ind;
3066
3067 switch (le32_to_cpu(msg->status)) {
3068 case RNDIS_STATUS_MEDIA_CONNECT:
3069 if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) {
3070 /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra
3071 * "media connect" indications which confuses driver
3072 * and userspace to think that device is
3073 * roaming/reassociating when it isn't.
3074 */
3075 netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n");
3076 return;
3077 }
3078
3079 usbnet_pause_rx(usbdev);
3080
3081 netdev_info(usbdev->net, "media connect\n");
3082
3083 /* queue work to avoid recursive calls into rndis_command */
3084 set_bit(WORK_LINK_UP, &priv->work_pending);
3085 queue_work(priv->workqueue, &priv->work);
3086 break;
3087
3088 case RNDIS_STATUS_MEDIA_DISCONNECT:
3089 netdev_info(usbdev->net, "media disconnect\n");
3090
3091 /* queue work to avoid recursive calls into rndis_command */
3092 set_bit(WORK_LINK_DOWN, &priv->work_pending);
3093 queue_work(priv->workqueue, &priv->work);
3094 break;
3095
3096 case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION:
3097 rndis_wlan_media_specific_indication(usbdev, msg, buflen);
3098 break;
3099
3100 default:
3101 netdev_info(usbdev->net, "indication: 0x%08x\n",
3102 le32_to_cpu(msg->status));
3103 break;
3104 }
3105 }
3106
3107 static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
3108 {
3109 struct {
3110 __le32 num_items;
3111 __le32 items[8];
3112 } networks_supported;
3113 struct ndis_80211_capability *caps;
3114 u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
3115 int len, retval, i, n;
3116 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3117
3118 /* determine supported modes */
3119 len = sizeof(networks_supported);
3120 retval = rndis_query_oid(usbdev,
3121 RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED,
3122 &networks_supported, &len);
3123 if (retval >= 0) {
3124 n = le32_to_cpu(networks_supported.num_items);
3125 if (n > 8)
3126 n = 8;
3127 for (i = 0; i < n; i++) {
3128 switch (le32_to_cpu(networks_supported.items[i])) {
3129 case NDIS_80211_TYPE_FREQ_HOP:
3130 case NDIS_80211_TYPE_DIRECT_SEQ:
3131 priv->caps |= CAP_MODE_80211B;
3132 break;
3133 case NDIS_80211_TYPE_OFDM_A:
3134 priv->caps |= CAP_MODE_80211A;
3135 break;
3136 case NDIS_80211_TYPE_OFDM_G:
3137 priv->caps |= CAP_MODE_80211G;
3138 break;
3139 }
3140 }
3141 }
3142
3143 /* get device 802.11 capabilities, number of PMKIDs */
3144 caps = (struct ndis_80211_capability *)caps_buf;
3145 len = sizeof(caps_buf);
3146 retval = rndis_query_oid(usbdev,
3147 RNDIS_OID_802_11_CAPABILITY,
3148 caps, &len);
3149 if (retval >= 0) {
3150 netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, "
3151 "ver %d, pmkids %d, auth-encr-pairs %d\n",
3152 le32_to_cpu(caps->length),
3153 le32_to_cpu(caps->version),
3154 le32_to_cpu(caps->num_pmkids),
3155 le32_to_cpu(caps->num_auth_encr_pair));
3156 wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
3157 } else
3158 wiphy->max_num_pmkids = 0;
3159
3160 return retval;
3161 }
3162
3163 static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi)
3164 {
3165 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3166 enum nl80211_cqm_rssi_threshold_event event;
3167 int thold, hyst, last_event;
3168
3169 if (priv->cqm_rssi_thold >= 0 || rssi >= 0)
3170 return;
3171 if (priv->infra_mode != NDIS_80211_INFRA_INFRA)
3172 return;
3173
3174 last_event = priv->last_cqm_event_rssi;
3175 thold = priv->cqm_rssi_thold;
3176 hyst = priv->cqm_rssi_hyst;
3177
3178 if (rssi < thold && (last_event == 0 || rssi < last_event - hyst))
3179 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
3180 else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst))
3181 event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
3182 else
3183 return;
3184
3185 priv->last_cqm_event_rssi = rssi;
3186 cfg80211_cqm_rssi_notify(usbdev->net, event, GFP_KERNEL);
3187 }
3188
3189 #define DEVICE_POLLER_JIFFIES (HZ)
3190 static void rndis_device_poller(struct work_struct *work)
3191 {
3192 struct rndis_wlan_private *priv =
3193 container_of(work, struct rndis_wlan_private,
3194 dev_poller_work.work);
3195 struct usbnet *usbdev = priv->usbdev;
3196 __le32 rssi, tmp;
3197 int len, ret, j;
3198 int update_jiffies = DEVICE_POLLER_JIFFIES;
3199 void *buf;
3200
3201 /* Only check/do workaround when connected. Calling is_associated()
3202 * also polls device with rndis_command() and catches for media link
3203 * indications.
3204 */
3205 if (!is_associated(usbdev)) {
3206 /* Workaround bad scanning in BCM4320a devices with active
3207 * background scanning when not associated.
3208 */
3209 if (priv->device_type == RNDIS_BCM4320A && priv->radio_on &&
3210 !priv->scan_request) {
3211 /* Get previous scan results */
3212 rndis_check_bssid_list(usbdev, NULL, NULL);
3213
3214 /* Initiate new scan */
3215 rndis_start_bssid_list_scan(usbdev);
3216 }
3217
3218 goto end;
3219 }
3220
3221 len = sizeof(rssi);
3222 ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI,
3223 &rssi, &len);
3224 if (ret == 0) {
3225 priv->last_qual = level_to_qual(le32_to_cpu(rssi));
3226 rndis_do_cqm(usbdev, le32_to_cpu(rssi));
3227 }
3228
3229 netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n",
3230 ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi)));
3231
3232 /* Workaround transfer stalls on poor quality links.
3233 * TODO: find right way to fix these stalls (as stalls do not happen
3234 * with ndiswrapper/windows driver). */
3235 if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) {
3236 /* Decrease stats worker interval to catch stalls.
3237 * faster. Faster than 400-500ms causes packet loss,
3238 * Slower doesn't catch stalls fast enough.
3239 */
3240 j = msecs_to_jiffies(priv->param_workaround_interval);
3241 if (j > DEVICE_POLLER_JIFFIES)
3242 j = DEVICE_POLLER_JIFFIES;
3243 else if (j <= 0)
3244 j = 1;
3245 update_jiffies = j;
3246
3247 /* Send scan OID. Use of both OIDs is required to get device
3248 * working.
3249 */
3250 tmp = cpu_to_le32(1);
3251 rndis_set_oid(usbdev,
3252 RNDIS_OID_802_11_BSSID_LIST_SCAN,
3253 &tmp, sizeof(tmp));
3254
3255 len = CONTROL_BUFFER_SIZE;
3256 buf = kmalloc(len, GFP_KERNEL);
3257 if (!buf)
3258 goto end;
3259
3260 rndis_query_oid(usbdev,
3261 RNDIS_OID_802_11_BSSID_LIST,
3262 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_rx_mode = 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 = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST);
3445 retval = rndis_set_oid(usbdev,
3446 RNDIS_OID_GEN_CURRENT_PACKET_FILTER,
3447 &tmp, sizeof(tmp));
3448
3449 len = sizeof(tmp);
3450 retval = rndis_query_oid(usbdev,
3451 RNDIS_OID_802_3_MAXIMUM_LIST_SIZE,
3452 &tmp, &len);
3453 priv->multicast_size = le32_to_cpu(tmp);
3454 if (retval < 0 || priv->multicast_size < 0)
3455 priv->multicast_size = 0;
3456 if (priv->multicast_size > 0)
3457 usbdev->net->flags |= IFF_MULTICAST;
3458 else
3459 usbdev->net->flags &= ~IFF_MULTICAST;
3460
3461 /* fill-out wiphy structure and register w/ cfg80211 */
3462 memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN);
3463 wiphy->privid = rndis_wiphy_privid;
3464 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
3465 | BIT(NL80211_IFTYPE_ADHOC);
3466 wiphy->max_scan_ssids = 1;
3467
3468 /* TODO: fill-out band/encr information based on priv->caps */
3469 rndis_wlan_get_caps(usbdev, wiphy);
3470
3471 memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
3472 memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
3473 priv->band.channels = priv->channels;
3474 priv->band.n_channels = ARRAY_SIZE(rndis_channels);
3475 priv->band.bitrates = priv->rates;
3476 priv->band.n_bitrates = ARRAY_SIZE(rndis_rates);
3477 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
3478 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
3479
3480 memcpy(priv->cipher_suites, rndis_cipher_suites,
3481 sizeof(rndis_cipher_suites));
3482 wiphy->cipher_suites = priv->cipher_suites;
3483 wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites);
3484
3485 set_wiphy_dev(wiphy, &usbdev->udev->dev);
3486
3487 if (wiphy_register(wiphy)) {
3488 retval = -ENODEV;
3489 goto fail;
3490 }
3491
3492 set_default_iw_params(usbdev);
3493
3494 priv->power_mode = -1;
3495
3496 /* set default rts/frag */
3497 rndis_set_wiphy_params(wiphy,
3498 WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD);
3499
3500 /* turn radio off on init */
3501 priv->radio_on = false;
3502 disassociate(usbdev, false);
3503 netif_carrier_off(usbdev->net);
3504
3505 return 0;
3506
3507 fail:
3508 cancel_delayed_work_sync(&priv->dev_poller_work);
3509 cancel_delayed_work_sync(&priv->scan_work);
3510 cancel_work_sync(&priv->work);
3511 flush_workqueue(priv->workqueue);
3512 destroy_workqueue(priv->workqueue);
3513
3514 wiphy_free(wiphy);
3515 return retval;
3516 }
3517
3518 static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
3519 {
3520 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3521
3522 /* turn radio off */
3523 disassociate(usbdev, false);
3524
3525 cancel_delayed_work_sync(&priv->dev_poller_work);
3526 cancel_delayed_work_sync(&priv->scan_work);
3527 cancel_work_sync(&priv->work);
3528 flush_workqueue(priv->workqueue);
3529 destroy_workqueue(priv->workqueue);
3530
3531 rndis_unbind(usbdev, intf);
3532
3533 wiphy_unregister(priv->wdev.wiphy);
3534 wiphy_free(priv->wdev.wiphy);
3535 }
3536
3537 static int rndis_wlan_reset(struct usbnet *usbdev)
3538 {
3539 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3540 int retval;
3541
3542 netdev_dbg(usbdev->net, "%s()\n", __func__);
3543
3544 retval = rndis_reset(usbdev);
3545 if (retval)
3546 netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval);
3547
3548 /* rndis_reset cleared multicast list, so restore here.
3549 (set_multicast_list() also turns on current packet filter) */
3550 set_multicast_list(usbdev);
3551
3552 queue_delayed_work(priv->workqueue, &priv->dev_poller_work,
3553 round_jiffies_relative(DEVICE_POLLER_JIFFIES));
3554
3555 return deauthenticate(usbdev);
3556 }
3557
3558 static int rndis_wlan_stop(struct usbnet *usbdev)
3559 {
3560 struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
3561 int retval;
3562 __le32 filter;
3563
3564 netdev_dbg(usbdev->net, "%s()\n", __func__);
3565
3566 retval = disassociate(usbdev, false);
3567
3568 priv->work_pending = 0;
3569 cancel_delayed_work_sync(&priv->dev_poller_work);
3570 cancel_delayed_work_sync(&priv->scan_work);
3571 cancel_work_sync(&priv->work);
3572 flush_workqueue(priv->workqueue);
3573
3574 if (priv->scan_request) {
3575 cfg80211_scan_done(priv->scan_request, true);
3576 priv->scan_request = NULL;
3577 }
3578
3579 /* Set current packet filter zero to block receiving data packets from
3580 device. */
3581 filter = 0;
3582 rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter,
3583 sizeof(filter));
3584
3585 return retval;
3586 }
3587
3588 static const struct driver_info bcm4320b_info = {
3589 .description = "Wireless RNDIS device, BCM4320b based",
3590 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3591 FLAG_AVOID_UNLINK_URBS,
3592 .bind = rndis_wlan_bind,
3593 .unbind = rndis_wlan_unbind,
3594 .status = rndis_status,
3595 .rx_fixup = rndis_rx_fixup,
3596 .tx_fixup = rndis_tx_fixup,
3597 .reset = rndis_wlan_reset,
3598 .stop = rndis_wlan_stop,
3599 .early_init = bcm4320b_early_init,
3600 .indication = rndis_wlan_indication,
3601 };
3602
3603 static const struct driver_info bcm4320a_info = {
3604 .description = "Wireless RNDIS device, BCM4320a based",
3605 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3606 FLAG_AVOID_UNLINK_URBS,
3607 .bind = rndis_wlan_bind,
3608 .unbind = rndis_wlan_unbind,
3609 .status = rndis_status,
3610 .rx_fixup = rndis_rx_fixup,
3611 .tx_fixup = rndis_tx_fixup,
3612 .reset = rndis_wlan_reset,
3613 .stop = rndis_wlan_stop,
3614 .early_init = bcm4320a_early_init,
3615 .indication = rndis_wlan_indication,
3616 };
3617
3618 static const struct driver_info rndis_wlan_info = {
3619 .description = "Wireless RNDIS device",
3620 .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT |
3621 FLAG_AVOID_UNLINK_URBS,
3622 .bind = rndis_wlan_bind,
3623 .unbind = rndis_wlan_unbind,
3624 .status = rndis_status,
3625 .rx_fixup = rndis_rx_fixup,
3626 .tx_fixup = rndis_tx_fixup,
3627 .reset = rndis_wlan_reset,
3628 .stop = rndis_wlan_stop,
3629 .early_init = unknown_early_init,
3630 .indication = rndis_wlan_indication,
3631 };
3632
3633 /*-------------------------------------------------------------------------*/
3634
3635 static const struct usb_device_id products [] = {
3636 #define RNDIS_MASTER_INTERFACE \
3637 .bInterfaceClass = USB_CLASS_COMM, \
3638 .bInterfaceSubClass = 2 /* ACM */, \
3639 .bInterfaceProtocol = 0x0ff
3640
3641 /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
3642 * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
3643 */
3644 {
3645 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3646 | USB_DEVICE_ID_MATCH_DEVICE,
3647 .idVendor = 0x0411,
3648 .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */
3649 RNDIS_MASTER_INTERFACE,
3650 .driver_info = (unsigned long) &bcm4320b_info,
3651 }, {
3652 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3653 | USB_DEVICE_ID_MATCH_DEVICE,
3654 .idVendor = 0x0baf,
3655 .idProduct = 0x011b, /* U.S. Robotics USR5421 */
3656 RNDIS_MASTER_INTERFACE,
3657 .driver_info = (unsigned long) &bcm4320b_info,
3658 }, {
3659 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3660 | USB_DEVICE_ID_MATCH_DEVICE,
3661 .idVendor = 0x050d,
3662 .idProduct = 0x011b, /* Belkin F5D7051 */
3663 RNDIS_MASTER_INTERFACE,
3664 .driver_info = (unsigned long) &bcm4320b_info,
3665 }, {
3666 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3667 | USB_DEVICE_ID_MATCH_DEVICE,
3668 .idVendor = 0x1799, /* Belkin has two vendor ids */
3669 .idProduct = 0x011b, /* Belkin F5D7051 */
3670 RNDIS_MASTER_INTERFACE,
3671 .driver_info = (unsigned long) &bcm4320b_info,
3672 }, {
3673 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3674 | USB_DEVICE_ID_MATCH_DEVICE,
3675 .idVendor = 0x13b1,
3676 .idProduct = 0x0014, /* Linksys WUSB54GSv2 */
3677 RNDIS_MASTER_INTERFACE,
3678 .driver_info = (unsigned long) &bcm4320b_info,
3679 }, {
3680 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3681 | USB_DEVICE_ID_MATCH_DEVICE,
3682 .idVendor = 0x13b1,
3683 .idProduct = 0x0026, /* Linksys WUSB54GSC */
3684 RNDIS_MASTER_INTERFACE,
3685 .driver_info = (unsigned long) &bcm4320b_info,
3686 }, {
3687 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3688 | USB_DEVICE_ID_MATCH_DEVICE,
3689 .idVendor = 0x0b05,
3690 .idProduct = 0x1717, /* Asus WL169gE */
3691 RNDIS_MASTER_INTERFACE,
3692 .driver_info = (unsigned long) &bcm4320b_info,
3693 }, {
3694 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3695 | USB_DEVICE_ID_MATCH_DEVICE,
3696 .idVendor = 0x0a5c,
3697 .idProduct = 0xd11b, /* Eminent EM4045 */
3698 RNDIS_MASTER_INTERFACE,
3699 .driver_info = (unsigned long) &bcm4320b_info,
3700 }, {
3701 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3702 | USB_DEVICE_ID_MATCH_DEVICE,
3703 .idVendor = 0x1690,
3704 .idProduct = 0x0715, /* BT Voyager 1055 */
3705 RNDIS_MASTER_INTERFACE,
3706 .driver_info = (unsigned long) &bcm4320b_info,
3707 },
3708 /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
3709 * parameters available, hardware probably contain older firmware version with
3710 * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
3711 */
3712 {
3713 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3714 | USB_DEVICE_ID_MATCH_DEVICE,
3715 .idVendor = 0x13b1,
3716 .idProduct = 0x000e, /* Linksys WUSB54GSv1 */
3717 RNDIS_MASTER_INTERFACE,
3718 .driver_info = (unsigned long) &bcm4320a_info,
3719 }, {
3720 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3721 | USB_DEVICE_ID_MATCH_DEVICE,
3722 .idVendor = 0x0baf,
3723 .idProduct = 0x0111, /* U.S. Robotics USR5420 */
3724 RNDIS_MASTER_INTERFACE,
3725 .driver_info = (unsigned long) &bcm4320a_info,
3726 }, {
3727 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
3728 | USB_DEVICE_ID_MATCH_DEVICE,
3729 .idVendor = 0x0411,
3730 .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */
3731 RNDIS_MASTER_INTERFACE,
3732 .driver_info = (unsigned long) &bcm4320a_info,
3733 },
3734 /* Generic Wireless RNDIS devices that we don't have exact
3735 * idVendor/idProduct/chip yet.
3736 */
3737 {
3738 /* RNDIS is MSFT's un-official variant of CDC ACM */
3739 USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
3740 .driver_info = (unsigned long) &rndis_wlan_info,
3741 }, {
3742 /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
3743 USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
3744 .driver_info = (unsigned long) &rndis_wlan_info,
3745 },
3746 { }, // END
3747 };
3748 MODULE_DEVICE_TABLE(usb, products);
3749
3750 static struct usb_driver rndis_wlan_driver = {
3751 .name = "rndis_wlan",
3752 .id_table = products,
3753 .probe = usbnet_probe,
3754 .disconnect = usbnet_disconnect,
3755 .suspend = usbnet_suspend,
3756 .resume = usbnet_resume,
3757 .disable_hub_initiated_lpm = 1,
3758 };
3759
3760 module_usb_driver(rndis_wlan_driver);
3761
3762 MODULE_AUTHOR("Bjorge Dijkstra");
3763 MODULE_AUTHOR("Jussi Kivilinna");
3764 MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
3765 MODULE_LICENSE("GPL");
3766
Linux with added FPC-III support