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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[ETH_ALEN]; | |
203 | u8 padding[2]; | |
204 | __le32 flags; | |
205 | } __packed; | |
206 | ||
207 | struct ndis_80211_pmkid_candidate { | |
208 | u8 bssid[ETH_ALEN]; | |
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[ETH_ALEN]; | |
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[ETH_ALEN]; | |
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[ETH_ALEN]; | |
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[ETH_ALEN]; | |
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[ETH_ALEN]; | |
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 0 | |
360 | #define WORK_LINK_DOWN 1 | |
361 | #define WORK_SET_MULTICAST_LIST 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, | |
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 | const 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 | eth_zero_addr(bssid); | |
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 == -1 || 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, NL80211_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 | eth_broadcast_addr(priv->encr_keys[index].bssid); | |
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 | eth_broadcast_addr(ndis_key.bssid); | |
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 | eth_broadcast_addr(priv->encr_keys[index].bssid); | |
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, | |
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, | |
2026 | CFG80211_BSS_FTYPE_UNKNOWN, bssid->mac, | |
2027 | timestamp, capability, beacon_interval, | |
2028 | ie, ie_len, signal, GFP_KERNEL); | |
2029 | cfg80211_put_bss(priv->wdev.wiphy, bss); | |
2030 | ||
2031 | return (bss != NULL); | |
2032 | } | |
2033 | ||
2034 | static struct ndis_80211_bssid_ex *next_bssid_list_item( | |
2035 | struct ndis_80211_bssid_ex *bssid, | |
2036 | int *bssid_len, void *buf, int len) | |
2037 | { | |
2038 | void *buf_end, *bssid_end; | |
2039 | ||
2040 | buf_end = (char *)buf + len; | |
2041 | bssid_end = (char *)bssid + *bssid_len; | |
2042 | ||
2043 | if ((int)(buf_end - bssid_end) < sizeof(bssid->length)) { | |
2044 | *bssid_len = 0; | |
2045 | return NULL; | |
2046 | } else { | |
2047 | bssid = (void *)((char *)bssid + *bssid_len); | |
2048 | *bssid_len = le32_to_cpu(bssid->length); | |
2049 | return bssid; | |
2050 | } | |
2051 | } | |
2052 | ||
2053 | static bool check_bssid_list_item(struct ndis_80211_bssid_ex *bssid, | |
2054 | int bssid_len, void *buf, int len) | |
2055 | { | |
2056 | void *buf_end, *bssid_end; | |
2057 | ||
2058 | if (!bssid || bssid_len <= 0 || bssid_len > len) | |
2059 | return false; | |
2060 | ||
2061 | buf_end = (char *)buf + len; | |
2062 | bssid_end = (char *)bssid + bssid_len; | |
2063 | ||
2064 | return (int)(buf_end - bssid_end) >= 0 && (int)(bssid_end - buf) >= 0; | |
2065 | } | |
2066 | ||
2067 | static int rndis_check_bssid_list(struct usbnet *usbdev, u8 *match_bssid, | |
2068 | bool *matched) | |
2069 | { | |
2070 | void *buf = NULL; | |
2071 | struct ndis_80211_bssid_list_ex *bssid_list; | |
2072 | struct ndis_80211_bssid_ex *bssid; | |
2073 | int ret = -EINVAL, len, count, bssid_len, real_count, new_len; | |
2074 | ||
2075 | netdev_dbg(usbdev->net, "%s()\n", __func__); | |
2076 | ||
2077 | len = CONTROL_BUFFER_SIZE; | |
2078 | resize_buf: | |
2079 | buf = kzalloc(len, GFP_KERNEL); | |
2080 | if (!buf) { | |
2081 | ret = -ENOMEM; | |
2082 | goto out; | |
2083 | } | |
2084 | ||
2085 | /* BSSID-list might have got bigger last time we checked, keep | |
2086 | * resizing until it won't get any bigger. | |
2087 | */ | |
2088 | new_len = len; | |
2089 | ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_BSSID_LIST, | |
2090 | buf, &new_len); | |
2091 | if (ret != 0 || new_len < sizeof(struct ndis_80211_bssid_list_ex)) | |
2092 | goto out; | |
2093 | ||
2094 | if (new_len > len) { | |
2095 | len = new_len; | |
2096 | kfree(buf); | |
2097 | goto resize_buf; | |
2098 | } | |
2099 | ||
2100 | len = new_len; | |
2101 | ||
2102 | bssid_list = buf; | |
2103 | count = le32_to_cpu(bssid_list->num_items); | |
2104 | real_count = 0; | |
2105 | netdev_dbg(usbdev->net, "%s(): buflen: %d\n", __func__, len); | |
2106 | ||
2107 | bssid_len = 0; | |
2108 | bssid = next_bssid_list_item(bssid_list->bssid, &bssid_len, buf, len); | |
2109 | ||
2110 | /* Device returns incorrect 'num_items'. Workaround by ignoring the | |
2111 | * received 'num_items' and walking through full bssid buffer instead. | |
2112 | */ | |
2113 | while (check_bssid_list_item(bssid, bssid_len, buf, len)) { | |
2114 | if (rndis_bss_info_update(usbdev, bssid) && match_bssid && | |
2115 | matched) { | |
2116 | if (ether_addr_equal(bssid->mac, match_bssid)) | |
2117 | *matched = true; | |
2118 | } | |
2119 | ||
2120 | real_count++; | |
2121 | bssid = next_bssid_list_item(bssid, &bssid_len, buf, len); | |
2122 | } | |
2123 | ||
2124 | netdev_dbg(usbdev->net, "%s(): num_items from device: %d, really found:" | |
2125 | " %d\n", __func__, count, real_count); | |
2126 | ||
2127 | out: | |
2128 | kfree(buf); | |
2129 | return ret; | |
2130 | } | |
2131 | ||
2132 | static void rndis_get_scan_results(struct work_struct *work) | |
2133 | { | |
2134 | struct rndis_wlan_private *priv = | |
2135 | container_of(work, struct rndis_wlan_private, scan_work.work); | |
2136 | struct usbnet *usbdev = priv->usbdev; | |
2137 | struct cfg80211_scan_info info = {}; | |
2138 | int ret; | |
2139 | ||
2140 | netdev_dbg(usbdev->net, "get_scan_results\n"); | |
2141 | ||
2142 | if (!priv->scan_request) | |
2143 | return; | |
2144 | ||
2145 | ret = rndis_check_bssid_list(usbdev, NULL, NULL); | |
2146 | ||
2147 | info.aborted = ret < 0; | |
2148 | cfg80211_scan_done(priv->scan_request, &info); | |
2149 | ||
2150 | priv->scan_request = NULL; | |
2151 | } | |
2152 | ||
2153 | static int rndis_connect(struct wiphy *wiphy, struct net_device *dev, | |
2154 | struct cfg80211_connect_params *sme) | |
2155 | { | |
2156 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2157 | struct usbnet *usbdev = priv->usbdev; | |
2158 | struct ieee80211_channel *channel = sme->channel; | |
2159 | struct ndis_80211_ssid ssid; | |
2160 | int pairwise = RNDIS_WLAN_ALG_NONE; | |
2161 | int groupwise = RNDIS_WLAN_ALG_NONE; | |
2162 | int keymgmt = RNDIS_WLAN_KEY_MGMT_NONE; | |
2163 | int length, i, ret, chan = -1; | |
2164 | ||
2165 | if (channel) | |
2166 | chan = ieee80211_frequency_to_channel(channel->center_freq); | |
2167 | ||
2168 | groupwise = rndis_cipher_to_alg(sme->crypto.cipher_group); | |
2169 | for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) | |
2170 | pairwise |= | |
2171 | rndis_cipher_to_alg(sme->crypto.ciphers_pairwise[i]); | |
2172 | ||
2173 | if (sme->crypto.n_ciphers_pairwise > 0 && | |
2174 | pairwise == RNDIS_WLAN_ALG_NONE) { | |
2175 | netdev_err(usbdev->net, "Unsupported pairwise cipher\n"); | |
2176 | return -ENOTSUPP; | |
2177 | } | |
2178 | ||
2179 | for (i = 0; i < sme->crypto.n_akm_suites; i++) | |
2180 | keymgmt |= | |
2181 | rndis_akm_suite_to_key_mgmt(sme->crypto.akm_suites[i]); | |
2182 | ||
2183 | if (sme->crypto.n_akm_suites > 0 && | |
2184 | keymgmt == RNDIS_WLAN_KEY_MGMT_NONE) { | |
2185 | netdev_err(usbdev->net, "Invalid keymgmt\n"); | |
2186 | return -ENOTSUPP; | |
2187 | } | |
2188 | ||
2189 | netdev_dbg(usbdev->net, "cfg80211.connect('%.32s':[%pM]:%d:[%d,0x%x:0x%x]:[0x%x:0x%x]:0x%x)\n", | |
2190 | sme->ssid, sme->bssid, chan, | |
2191 | sme->privacy, sme->crypto.wpa_versions, sme->auth_type, | |
2192 | groupwise, pairwise, keymgmt); | |
2193 | ||
2194 | if (is_associated(usbdev)) | |
2195 | disassociate(usbdev, false); | |
2196 | ||
2197 | ret = set_infra_mode(usbdev, NDIS_80211_INFRA_INFRA); | |
2198 | if (ret < 0) { | |
2199 | netdev_dbg(usbdev->net, "connect: set_infra_mode failed, %d\n", | |
2200 | ret); | |
2201 | goto err_turn_radio_on; | |
2202 | } | |
2203 | ||
2204 | ret = set_auth_mode(usbdev, sme->crypto.wpa_versions, sme->auth_type, | |
2205 | keymgmt); | |
2206 | if (ret < 0) { | |
2207 | netdev_dbg(usbdev->net, "connect: set_auth_mode failed, %d\n", | |
2208 | ret); | |
2209 | goto err_turn_radio_on; | |
2210 | } | |
2211 | ||
2212 | set_priv_filter(usbdev); | |
2213 | ||
2214 | ret = set_encr_mode(usbdev, pairwise, groupwise); | |
2215 | if (ret < 0) { | |
2216 | netdev_dbg(usbdev->net, "connect: set_encr_mode failed, %d\n", | |
2217 | ret); | |
2218 | goto err_turn_radio_on; | |
2219 | } | |
2220 | ||
2221 | if (channel) { | |
2222 | ret = set_channel(usbdev, chan); | |
2223 | if (ret < 0) { | |
2224 | netdev_dbg(usbdev->net, "connect: set_channel failed, %d\n", | |
2225 | ret); | |
2226 | goto err_turn_radio_on; | |
2227 | } | |
2228 | } | |
2229 | ||
2230 | if (sme->key && ((groupwise | pairwise) & RNDIS_WLAN_ALG_WEP)) { | |
2231 | priv->encr_tx_key_index = sme->key_idx; | |
2232 | ret = add_wep_key(usbdev, sme->key, sme->key_len, sme->key_idx); | |
2233 | if (ret < 0) { | |
2234 | netdev_dbg(usbdev->net, "connect: add_wep_key failed, %d (%d, %d)\n", | |
2235 | ret, sme->key_len, sme->key_idx); | |
2236 | goto err_turn_radio_on; | |
2237 | } | |
2238 | } | |
2239 | ||
2240 | if (sme->bssid && !is_zero_ether_addr(sme->bssid) && | |
2241 | !is_broadcast_ether_addr(sme->bssid)) { | |
2242 | ret = set_bssid(usbdev, sme->bssid); | |
2243 | if (ret < 0) { | |
2244 | netdev_dbg(usbdev->net, "connect: set_bssid failed, %d\n", | |
2245 | ret); | |
2246 | goto err_turn_radio_on; | |
2247 | } | |
2248 | } else | |
2249 | clear_bssid(usbdev); | |
2250 | ||
2251 | length = sme->ssid_len; | |
2252 | if (length > NDIS_802_11_LENGTH_SSID) | |
2253 | length = NDIS_802_11_LENGTH_SSID; | |
2254 | ||
2255 | memset(&ssid, 0, sizeof(ssid)); | |
2256 | ssid.length = cpu_to_le32(length); | |
2257 | memcpy(ssid.essid, sme->ssid, length); | |
2258 | ||
2259 | /* Pause and purge rx queue, so we don't pass packets before | |
2260 | * 'media connect'-indication. | |
2261 | */ | |
2262 | usbnet_pause_rx(usbdev); | |
2263 | usbnet_purge_paused_rxq(usbdev); | |
2264 | ||
2265 | ret = set_essid(usbdev, &ssid); | |
2266 | if (ret < 0) | |
2267 | netdev_dbg(usbdev->net, "connect: set_essid failed, %d\n", ret); | |
2268 | return ret; | |
2269 | ||
2270 | err_turn_radio_on: | |
2271 | disassociate(usbdev, true); | |
2272 | ||
2273 | return ret; | |
2274 | } | |
2275 | ||
2276 | static int rndis_disconnect(struct wiphy *wiphy, struct net_device *dev, | |
2277 | u16 reason_code) | |
2278 | { | |
2279 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2280 | struct usbnet *usbdev = priv->usbdev; | |
2281 | ||
2282 | netdev_dbg(usbdev->net, "cfg80211.disconnect(%d)\n", reason_code); | |
2283 | ||
2284 | priv->connected = false; | |
2285 | eth_zero_addr(priv->bssid); | |
2286 | ||
2287 | return deauthenticate(usbdev); | |
2288 | } | |
2289 | ||
2290 | static int rndis_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
2291 | struct cfg80211_ibss_params *params) | |
2292 | { | |
2293 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2294 | struct usbnet *usbdev = priv->usbdev; | |
2295 | struct ieee80211_channel *channel = params->chandef.chan; | |
2296 | struct ndis_80211_ssid ssid; | |
2297 | enum nl80211_auth_type auth_type; | |
2298 | int ret, alg, length, chan = -1; | |
2299 | ||
2300 | if (channel) | |
2301 | chan = ieee80211_frequency_to_channel(channel->center_freq); | |
2302 | ||
2303 | /* TODO: How to handle ad-hoc encryption? | |
2304 | * connect() has *key, join_ibss() doesn't. RNDIS requires key to be | |
2305 | * pre-shared for encryption (open/shared/wpa), is key set before | |
2306 | * join_ibss? Which auth_type to use (not in params)? What about WPA? | |
2307 | */ | |
2308 | if (params->privacy) { | |
2309 | auth_type = NL80211_AUTHTYPE_SHARED_KEY; | |
2310 | alg = RNDIS_WLAN_ALG_WEP; | |
2311 | } else { | |
2312 | auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; | |
2313 | alg = RNDIS_WLAN_ALG_NONE; | |
2314 | } | |
2315 | ||
2316 | netdev_dbg(usbdev->net, "cfg80211.join_ibss('%.32s':[%pM]:%d:%d)\n", | |
2317 | params->ssid, params->bssid, chan, params->privacy); | |
2318 | ||
2319 | if (is_associated(usbdev)) | |
2320 | disassociate(usbdev, false); | |
2321 | ||
2322 | ret = set_infra_mode(usbdev, NDIS_80211_INFRA_ADHOC); | |
2323 | if (ret < 0) { | |
2324 | netdev_dbg(usbdev->net, "join_ibss: set_infra_mode failed, %d\n", | |
2325 | ret); | |
2326 | goto err_turn_radio_on; | |
2327 | } | |
2328 | ||
2329 | ret = set_auth_mode(usbdev, 0, auth_type, RNDIS_WLAN_KEY_MGMT_NONE); | |
2330 | if (ret < 0) { | |
2331 | netdev_dbg(usbdev->net, "join_ibss: set_auth_mode failed, %d\n", | |
2332 | ret); | |
2333 | goto err_turn_radio_on; | |
2334 | } | |
2335 | ||
2336 | set_priv_filter(usbdev); | |
2337 | ||
2338 | ret = set_encr_mode(usbdev, alg, RNDIS_WLAN_ALG_NONE); | |
2339 | if (ret < 0) { | |
2340 | netdev_dbg(usbdev->net, "join_ibss: set_encr_mode failed, %d\n", | |
2341 | ret); | |
2342 | goto err_turn_radio_on; | |
2343 | } | |
2344 | ||
2345 | if (channel) { | |
2346 | ret = set_channel(usbdev, chan); | |
2347 | if (ret < 0) { | |
2348 | netdev_dbg(usbdev->net, "join_ibss: set_channel failed, %d\n", | |
2349 | ret); | |
2350 | goto err_turn_radio_on; | |
2351 | } | |
2352 | } | |
2353 | ||
2354 | if (params->bssid && !is_zero_ether_addr(params->bssid) && | |
2355 | !is_broadcast_ether_addr(params->bssid)) { | |
2356 | ret = set_bssid(usbdev, params->bssid); | |
2357 | if (ret < 0) { | |
2358 | netdev_dbg(usbdev->net, "join_ibss: set_bssid failed, %d\n", | |
2359 | ret); | |
2360 | goto err_turn_radio_on; | |
2361 | } | |
2362 | } else | |
2363 | clear_bssid(usbdev); | |
2364 | ||
2365 | length = params->ssid_len; | |
2366 | if (length > NDIS_802_11_LENGTH_SSID) | |
2367 | length = NDIS_802_11_LENGTH_SSID; | |
2368 | ||
2369 | memset(&ssid, 0, sizeof(ssid)); | |
2370 | ssid.length = cpu_to_le32(length); | |
2371 | memcpy(ssid.essid, params->ssid, length); | |
2372 | ||
2373 | /* Don't need to pause rx queue for ad-hoc. */ | |
2374 | usbnet_purge_paused_rxq(usbdev); | |
2375 | usbnet_resume_rx(usbdev); | |
2376 | ||
2377 | ret = set_essid(usbdev, &ssid); | |
2378 | if (ret < 0) | |
2379 | netdev_dbg(usbdev->net, "join_ibss: set_essid failed, %d\n", | |
2380 | ret); | |
2381 | return ret; | |
2382 | ||
2383 | err_turn_radio_on: | |
2384 | disassociate(usbdev, true); | |
2385 | ||
2386 | return ret; | |
2387 | } | |
2388 | ||
2389 | static int rndis_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
2390 | { | |
2391 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2392 | struct usbnet *usbdev = priv->usbdev; | |
2393 | ||
2394 | netdev_dbg(usbdev->net, "cfg80211.leave_ibss()\n"); | |
2395 | ||
2396 | priv->connected = false; | |
2397 | eth_zero_addr(priv->bssid); | |
2398 | ||
2399 | return deauthenticate(usbdev); | |
2400 | } | |
2401 | ||
2402 | static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, | |
2403 | u8 key_index, bool pairwise, const u8 *mac_addr, | |
2404 | struct key_params *params) | |
2405 | { | |
2406 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2407 | struct usbnet *usbdev = priv->usbdev; | |
2408 | __le32 flags; | |
2409 | ||
2410 | netdev_dbg(usbdev->net, "%s(%i, %pM, %08x)\n", | |
2411 | __func__, key_index, mac_addr, params->cipher); | |
2412 | ||
2413 | switch (params->cipher) { | |
2414 | case WLAN_CIPHER_SUITE_WEP40: | |
2415 | case WLAN_CIPHER_SUITE_WEP104: | |
2416 | return add_wep_key(usbdev, params->key, params->key_len, | |
2417 | key_index); | |
2418 | case WLAN_CIPHER_SUITE_TKIP: | |
2419 | case WLAN_CIPHER_SUITE_CCMP: | |
2420 | flags = 0; | |
2421 | ||
2422 | if (params->seq && params->seq_len > 0) | |
2423 | flags |= NDIS_80211_ADDKEY_SET_INIT_RECV_SEQ; | |
2424 | if (mac_addr) | |
2425 | flags |= NDIS_80211_ADDKEY_PAIRWISE_KEY | | |
2426 | NDIS_80211_ADDKEY_TRANSMIT_KEY; | |
2427 | ||
2428 | return add_wpa_key(usbdev, params->key, params->key_len, | |
2429 | key_index, mac_addr, params->seq, | |
2430 | params->seq_len, params->cipher, flags); | |
2431 | default: | |
2432 | netdev_dbg(usbdev->net, "%s(): unsupported cipher %08x\n", | |
2433 | __func__, params->cipher); | |
2434 | return -ENOTSUPP; | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, | |
2439 | u8 key_index, bool pairwise, const u8 *mac_addr) | |
2440 | { | |
2441 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2442 | struct usbnet *usbdev = priv->usbdev; | |
2443 | ||
2444 | netdev_dbg(usbdev->net, "%s(%i, %pM)\n", __func__, key_index, mac_addr); | |
2445 | ||
2446 | return remove_key(usbdev, key_index, mac_addr); | |
2447 | } | |
2448 | ||
2449 | static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev, | |
2450 | u8 key_index, bool unicast, bool multicast) | |
2451 | { | |
2452 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2453 | struct usbnet *usbdev = priv->usbdev; | |
2454 | struct rndis_wlan_encr_key key; | |
2455 | ||
2456 | netdev_dbg(usbdev->net, "%s(%i)\n", __func__, key_index); | |
2457 | ||
2458 | if (key_index >= RNDIS_WLAN_NUM_KEYS) | |
2459 | return -ENOENT; | |
2460 | ||
2461 | priv->encr_tx_key_index = key_index; | |
2462 | ||
2463 | if (is_wpa_key(priv, key_index)) | |
2464 | return 0; | |
2465 | ||
2466 | key = priv->encr_keys[key_index]; | |
2467 | ||
2468 | return add_wep_key(usbdev, key.material, key.len, key_index); | |
2469 | } | |
2470 | ||
2471 | static void rndis_fill_station_info(struct usbnet *usbdev, | |
2472 | struct station_info *sinfo) | |
2473 | { | |
2474 | __le32 linkspeed, rssi; | |
2475 | int ret, len; | |
2476 | ||
2477 | memset(sinfo, 0, sizeof(*sinfo)); | |
2478 | ||
2479 | len = sizeof(linkspeed); | |
2480 | ret = rndis_query_oid(usbdev, RNDIS_OID_GEN_LINK_SPEED, &linkspeed, &len); | |
2481 | if (ret == 0) { | |
2482 | sinfo->txrate.legacy = le32_to_cpu(linkspeed) / 1000; | |
2483 | sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); | |
2484 | } | |
2485 | ||
2486 | len = sizeof(rssi); | |
2487 | ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, | |
2488 | &rssi, &len); | |
2489 | if (ret == 0) { | |
2490 | sinfo->signal = level_to_qual(le32_to_cpu(rssi)); | |
2491 | sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); | |
2492 | } | |
2493 | } | |
2494 | ||
2495 | static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev, | |
2496 | const u8 *mac, struct station_info *sinfo) | |
2497 | { | |
2498 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2499 | struct usbnet *usbdev = priv->usbdev; | |
2500 | ||
2501 | if (!ether_addr_equal(priv->bssid, mac)) | |
2502 | return -ENOENT; | |
2503 | ||
2504 | rndis_fill_station_info(usbdev, sinfo); | |
2505 | ||
2506 | return 0; | |
2507 | } | |
2508 | ||
2509 | static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev, | |
2510 | int idx, u8 *mac, struct station_info *sinfo) | |
2511 | { | |
2512 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2513 | struct usbnet *usbdev = priv->usbdev; | |
2514 | ||
2515 | if (idx != 0) | |
2516 | return -ENOENT; | |
2517 | ||
2518 | memcpy(mac, priv->bssid, ETH_ALEN); | |
2519 | ||
2520 | rndis_fill_station_info(usbdev, sinfo); | |
2521 | ||
2522 | return 0; | |
2523 | } | |
2524 | ||
2525 | static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, | |
2526 | struct cfg80211_pmksa *pmksa) | |
2527 | { | |
2528 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2529 | struct usbnet *usbdev = priv->usbdev; | |
2530 | struct ndis_80211_pmkid *pmkids; | |
2531 | u32 *tmp = (u32 *)pmksa->pmkid; | |
2532 | ||
2533 | netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__, | |
2534 | pmksa->bssid, | |
2535 | cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), | |
2536 | cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3])); | |
2537 | ||
2538 | pmkids = get_device_pmkids(usbdev); | |
2539 | if (IS_ERR(pmkids)) { | |
2540 | /* couldn't read PMKID cache from device */ | |
2541 | return PTR_ERR(pmkids); | |
2542 | } | |
2543 | ||
2544 | pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids); | |
2545 | if (IS_ERR(pmkids)) { | |
2546 | /* not found, list full, etc */ | |
2547 | return PTR_ERR(pmkids); | |
2548 | } | |
2549 | ||
2550 | return set_device_pmkids(usbdev, pmkids); | |
2551 | } | |
2552 | ||
2553 | static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, | |
2554 | struct cfg80211_pmksa *pmksa) | |
2555 | { | |
2556 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2557 | struct usbnet *usbdev = priv->usbdev; | |
2558 | struct ndis_80211_pmkid *pmkids; | |
2559 | u32 *tmp = (u32 *)pmksa->pmkid; | |
2560 | ||
2561 | netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__, | |
2562 | pmksa->bssid, | |
2563 | cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]), | |
2564 | cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3])); | |
2565 | ||
2566 | pmkids = get_device_pmkids(usbdev); | |
2567 | if (IS_ERR(pmkids)) { | |
2568 | /* Couldn't read PMKID cache from device */ | |
2569 | return PTR_ERR(pmkids); | |
2570 | } | |
2571 | ||
2572 | pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids); | |
2573 | if (IS_ERR(pmkids)) { | |
2574 | /* not found, etc */ | |
2575 | return PTR_ERR(pmkids); | |
2576 | } | |
2577 | ||
2578 | return set_device_pmkids(usbdev, pmkids); | |
2579 | } | |
2580 | ||
2581 | static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) | |
2582 | { | |
2583 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2584 | struct usbnet *usbdev = priv->usbdev; | |
2585 | struct ndis_80211_pmkid pmkid; | |
2586 | ||
2587 | netdev_dbg(usbdev->net, "%s()\n", __func__); | |
2588 | ||
2589 | memset(&pmkid, 0, sizeof(pmkid)); | |
2590 | ||
2591 | pmkid.length = cpu_to_le32(sizeof(pmkid)); | |
2592 | pmkid.bssid_info_count = cpu_to_le32(0); | |
2593 | ||
2594 | return rndis_set_oid(usbdev, RNDIS_OID_802_11_PMKID, | |
2595 | &pmkid, sizeof(pmkid)); | |
2596 | } | |
2597 | ||
2598 | static int rndis_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, | |
2599 | bool enabled, int timeout) | |
2600 | { | |
2601 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2602 | struct usbnet *usbdev = priv->usbdev; | |
2603 | int power_mode; | |
2604 | __le32 mode; | |
2605 | int ret; | |
2606 | ||
2607 | if (priv->device_type != RNDIS_BCM4320B) | |
2608 | return -ENOTSUPP; | |
2609 | ||
2610 | netdev_dbg(usbdev->net, "%s(): %s, %d\n", __func__, | |
2611 | enabled ? "enabled" : "disabled", | |
2612 | timeout); | |
2613 | ||
2614 | if (enabled) | |
2615 | power_mode = NDIS_80211_POWER_MODE_FAST_PSP; | |
2616 | else | |
2617 | power_mode = NDIS_80211_POWER_MODE_CAM; | |
2618 | ||
2619 | if (power_mode == priv->power_mode) | |
2620 | return 0; | |
2621 | ||
2622 | priv->power_mode = power_mode; | |
2623 | ||
2624 | mode = cpu_to_le32(power_mode); | |
2625 | ret = rndis_set_oid(usbdev, RNDIS_OID_802_11_POWER_MODE, | |
2626 | &mode, sizeof(mode)); | |
2627 | ||
2628 | netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_POWER_MODE -> %d\n", | |
2629 | __func__, ret); | |
2630 | ||
2631 | return ret; | |
2632 | } | |
2633 | ||
2634 | static int rndis_set_cqm_rssi_config(struct wiphy *wiphy, | |
2635 | struct net_device *dev, | |
2636 | s32 rssi_thold, u32 rssi_hyst) | |
2637 | { | |
2638 | struct rndis_wlan_private *priv = wiphy_priv(wiphy); | |
2639 | ||
2640 | priv->cqm_rssi_thold = rssi_thold; | |
2641 | priv->cqm_rssi_hyst = rssi_hyst; | |
2642 | priv->last_cqm_event_rssi = 0; | |
2643 | ||
2644 | return 0; | |
2645 | } | |
2646 | ||
2647 | static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid, | |
2648 | struct ndis_80211_assoc_info *info) | |
2649 | { | |
2650 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
2651 | struct ieee80211_channel *channel; | |
2652 | struct ndis_80211_ssid ssid; | |
2653 | struct cfg80211_bss *bss; | |
2654 | s32 signal; | |
2655 | u64 timestamp; | |
2656 | u16 capability; | |
2657 | u32 beacon_period = 0; | |
2658 | __le32 rssi; | |
2659 | u8 ie_buf[34]; | |
2660 | int len, ret, ie_len; | |
2661 | ||
2662 | /* Get signal quality, in case of error use rssi=0 and ignore error. */ | |
2663 | len = sizeof(rssi); | |
2664 | rssi = 0; | |
2665 | ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, | |
2666 | &rssi, &len); | |
2667 | signal = level_to_qual(le32_to_cpu(rssi)); | |
2668 | ||
2669 | netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_RSSI -> %d, " | |
2670 | "rssi:%d, qual: %d\n", __func__, ret, le32_to_cpu(rssi), | |
2671 | level_to_qual(le32_to_cpu(rssi))); | |
2672 | ||
2673 | /* Get AP capabilities */ | |
2674 | if (info) { | |
2675 | capability = le16_to_cpu(info->resp_ie.capa); | |
2676 | } else { | |
2677 | /* Set atleast ESS/IBSS capability */ | |
2678 | capability = (priv->infra_mode == NDIS_80211_INFRA_INFRA) ? | |
2679 | WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS; | |
2680 | } | |
2681 | ||
2682 | /* Get channel and beacon interval */ | |
2683 | channel = get_current_channel(usbdev, &beacon_period); | |
2684 | if (!channel) { | |
2685 | netdev_warn(usbdev->net, "%s(): could not get channel.\n", | |
2686 | __func__); | |
2687 | return; | |
2688 | } | |
2689 | ||
2690 | /* Get SSID, in case of error, use zero length SSID and ignore error. */ | |
2691 | len = sizeof(ssid); | |
2692 | memset(&ssid, 0, sizeof(ssid)); | |
2693 | ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_SSID, | |
2694 | &ssid, &len); | |
2695 | netdev_dbg(usbdev->net, "%s(): RNDIS_OID_802_11_SSID -> %d, len: %d, ssid: " | |
2696 | "'%.32s'\n", __func__, ret, | |
2697 | le32_to_cpu(ssid.length), ssid.essid); | |
2698 | ||
2699 | if (le32_to_cpu(ssid.length) > 32) | |
2700 | ssid.length = cpu_to_le32(32); | |
2701 | ||
2702 | ie_buf[0] = WLAN_EID_SSID; | |
2703 | ie_buf[1] = le32_to_cpu(ssid.length); | |
2704 | memcpy(&ie_buf[2], ssid.essid, le32_to_cpu(ssid.length)); | |
2705 | ||
2706 | ie_len = le32_to_cpu(ssid.length) + 2; | |
2707 | ||
2708 | /* no tsf */ | |
2709 | timestamp = 0; | |
2710 | ||
2711 | netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, " | |
2712 | "capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), " | |
2713 | "signal:%d\n", __func__, (channel ? channel->center_freq : -1), | |
2714 | bssid, (u32)timestamp, capability, beacon_period, ie_len, | |
2715 | ssid.essid, signal); | |
2716 | ||
2717 | bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, | |
2718 | CFG80211_BSS_FTYPE_UNKNOWN, bssid, | |
2719 | timestamp, capability, beacon_period, | |
2720 | ie_buf, ie_len, signal, GFP_KERNEL); | |
2721 | cfg80211_put_bss(priv->wdev.wiphy, bss); | |
2722 | } | |
2723 | ||
2724 | /* | |
2725 | * workers, indication handlers, device poller | |
2726 | */ | |
2727 | static void rndis_wlan_do_link_up_work(struct usbnet *usbdev) | |
2728 | { | |
2729 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
2730 | struct ndis_80211_assoc_info *info = NULL; | |
2731 | u8 bssid[ETH_ALEN]; | |
2732 | unsigned int resp_ie_len, req_ie_len; | |
2733 | unsigned int offset; | |
2734 | u8 *req_ie, *resp_ie; | |
2735 | int ret; | |
2736 | bool roamed = false; | |
2737 | bool match_bss; | |
2738 | ||
2739 | if (priv->infra_mode == NDIS_80211_INFRA_INFRA && priv->connected) { | |
2740 | /* received media connect indication while connected, either | |
2741 | * device reassociated with same AP or roamed to new. */ | |
2742 | roamed = true; | |
2743 | } | |
2744 | ||
2745 | req_ie_len = 0; | |
2746 | resp_ie_len = 0; | |
2747 | req_ie = NULL; | |
2748 | resp_ie = NULL; | |
2749 | ||
2750 | if (priv->infra_mode == NDIS_80211_INFRA_INFRA) { | |
2751 | info = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL); | |
2752 | if (!info) { | |
2753 | /* No memory? Try resume work later */ | |
2754 | set_bit(WORK_LINK_UP, &priv->work_pending); | |
2755 | queue_work(priv->workqueue, &priv->work); | |
2756 | return; | |
2757 | } | |
2758 | ||
2759 | /* Get association info IEs from device. */ | |
2760 | ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE); | |
2761 | if (!ret) { | |
2762 | req_ie_len = le32_to_cpu(info->req_ie_length); | |
2763 | if (req_ie_len > CONTROL_BUFFER_SIZE) | |
2764 | req_ie_len = CONTROL_BUFFER_SIZE; | |
2765 | if (req_ie_len != 0) { | |
2766 | offset = le32_to_cpu(info->offset_req_ies); | |
2767 | ||
2768 | if (offset > CONTROL_BUFFER_SIZE) | |
2769 | offset = CONTROL_BUFFER_SIZE; | |
2770 | ||
2771 | req_ie = (u8 *)info + offset; | |
2772 | ||
2773 | if (offset + req_ie_len > CONTROL_BUFFER_SIZE) | |
2774 | req_ie_len = | |
2775 | CONTROL_BUFFER_SIZE - offset; | |
2776 | } | |
2777 | ||
2778 | resp_ie_len = le32_to_cpu(info->resp_ie_length); | |
2779 | if (resp_ie_len > CONTROL_BUFFER_SIZE) | |
2780 | resp_ie_len = CONTROL_BUFFER_SIZE; | |
2781 | if (resp_ie_len != 0) { | |
2782 | offset = le32_to_cpu(info->offset_resp_ies); | |
2783 | ||
2784 | if (offset > CONTROL_BUFFER_SIZE) | |
2785 | offset = CONTROL_BUFFER_SIZE; | |
2786 | ||
2787 | resp_ie = (u8 *)info + offset; | |
2788 | ||
2789 | if (offset + resp_ie_len > CONTROL_BUFFER_SIZE) | |
2790 | resp_ie_len = | |
2791 | CONTROL_BUFFER_SIZE - offset; | |
2792 | } | |
2793 | } else { | |
2794 | /* Since rndis_wlan_craft_connected_bss() might use info | |
2795 | * later and expects info to contain valid data if | |
2796 | * non-null, free info and set NULL here. | |
2797 | */ | |
2798 | kfree(info); | |
2799 | info = NULL; | |
2800 | } | |
2801 | } else if (WARN_ON(priv->infra_mode != NDIS_80211_INFRA_ADHOC)) | |
2802 | return; | |
2803 | ||
2804 | ret = get_bssid(usbdev, bssid); | |
2805 | if (ret < 0) | |
2806 | memset(bssid, 0, sizeof(bssid)); | |
2807 | ||
2808 | netdev_dbg(usbdev->net, "link up work: [%pM]%s\n", | |
2809 | bssid, roamed ? " roamed" : ""); | |
2810 | ||
2811 | /* Internal bss list in device should contain at least the currently | |
2812 | * connected bss and we can get it to cfg80211 with | |
2813 | * rndis_check_bssid_list(). | |
2814 | * | |
2815 | * NDIS spec says: "If the device is associated, but the associated | |
2816 | * BSSID is not in its BSSID scan list, then the driver must add an | |
2817 | * entry for the BSSID at the end of the data that it returns in | |
2818 | * response to query of RNDIS_OID_802_11_BSSID_LIST." | |
2819 | * | |
2820 | * NOTE: Seems to be true for BCM4320b variant, but not BCM4320a. | |
2821 | */ | |
2822 | match_bss = false; | |
2823 | rndis_check_bssid_list(usbdev, bssid, &match_bss); | |
2824 | ||
2825 | if (!is_zero_ether_addr(bssid) && !match_bss) { | |
2826 | /* Couldn't get bss from device, we need to manually craft bss | |
2827 | * for cfg80211. | |
2828 | */ | |
2829 | rndis_wlan_craft_connected_bss(usbdev, bssid, info); | |
2830 | } | |
2831 | ||
2832 | if (priv->infra_mode == NDIS_80211_INFRA_INFRA) { | |
2833 | if (!roamed) { | |
2834 | cfg80211_connect_result(usbdev->net, bssid, req_ie, | |
2835 | req_ie_len, resp_ie, | |
2836 | resp_ie_len, 0, GFP_KERNEL); | |
2837 | } else { | |
2838 | struct cfg80211_roam_info roam_info = { | |
2839 | .channel = get_current_channel(usbdev, NULL), | |
2840 | .bssid = bssid, | |
2841 | .req_ie = req_ie, | |
2842 | .req_ie_len = req_ie_len, | |
2843 | .resp_ie = resp_ie, | |
2844 | .resp_ie_len = resp_ie_len, | |
2845 | }; | |
2846 | ||
2847 | cfg80211_roamed(usbdev->net, &roam_info, GFP_KERNEL); | |
2848 | } | |
2849 | } else if (priv->infra_mode == NDIS_80211_INFRA_ADHOC) | |
2850 | cfg80211_ibss_joined(usbdev->net, bssid, | |
2851 | get_current_channel(usbdev, NULL), | |
2852 | GFP_KERNEL); | |
2853 | ||
2854 | kfree(info); | |
2855 | ||
2856 | priv->connected = true; | |
2857 | memcpy(priv->bssid, bssid, ETH_ALEN); | |
2858 | ||
2859 | usbnet_resume_rx(usbdev); | |
2860 | netif_carrier_on(usbdev->net); | |
2861 | } | |
2862 | ||
2863 | static void rndis_wlan_do_link_down_work(struct usbnet *usbdev) | |
2864 | { | |
2865 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
2866 | ||
2867 | if (priv->connected) { | |
2868 | priv->connected = false; | |
2869 | eth_zero_addr(priv->bssid); | |
2870 | ||
2871 | deauthenticate(usbdev); | |
2872 | ||
2873 | cfg80211_disconnected(usbdev->net, 0, NULL, 0, true, GFP_KERNEL); | |
2874 | } | |
2875 | ||
2876 | netif_carrier_off(usbdev->net); | |
2877 | } | |
2878 | ||
2879 | static void rndis_wlan_worker(struct work_struct *work) | |
2880 | { | |
2881 | struct rndis_wlan_private *priv = | |
2882 | container_of(work, struct rndis_wlan_private, work); | |
2883 | struct usbnet *usbdev = priv->usbdev; | |
2884 | ||
2885 | if (test_and_clear_bit(WORK_LINK_UP, &priv->work_pending)) | |
2886 | rndis_wlan_do_link_up_work(usbdev); | |
2887 | ||
2888 | if (test_and_clear_bit(WORK_LINK_DOWN, &priv->work_pending)) | |
2889 | rndis_wlan_do_link_down_work(usbdev); | |
2890 | ||
2891 | if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending)) | |
2892 | set_multicast_list(usbdev); | |
2893 | } | |
2894 | ||
2895 | static void rndis_wlan_set_multicast_list(struct net_device *dev) | |
2896 | { | |
2897 | struct usbnet *usbdev = netdev_priv(dev); | |
2898 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
2899 | ||
2900 | if (test_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending)) | |
2901 | return; | |
2902 | ||
2903 | set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending); | |
2904 | queue_work(priv->workqueue, &priv->work); | |
2905 | } | |
2906 | ||
2907 | static void rndis_wlan_auth_indication(struct usbnet *usbdev, | |
2908 | struct ndis_80211_status_indication *indication, | |
2909 | int len) | |
2910 | { | |
2911 | u8 *buf; | |
2912 | const char *type; | |
2913 | int flags, buflen, key_id; | |
2914 | bool pairwise_error, group_error; | |
2915 | struct ndis_80211_auth_request *auth_req; | |
2916 | enum nl80211_key_type key_type; | |
2917 | ||
2918 | /* must have at least one array entry */ | |
2919 | if (len < offsetof(struct ndis_80211_status_indication, u) + | |
2920 | sizeof(struct ndis_80211_auth_request)) { | |
2921 | netdev_info(usbdev->net, "authentication indication: too short message (%i)\n", | |
2922 | len); | |
2923 | return; | |
2924 | } | |
2925 | ||
2926 | buf = (void *)&indication->u.auth_request[0]; | |
2927 | buflen = len - offsetof(struct ndis_80211_status_indication, u); | |
2928 | ||
2929 | while (buflen >= sizeof(*auth_req)) { | |
2930 | auth_req = (void *)buf; | |
2931 | if (buflen < le32_to_cpu(auth_req->length)) | |
2932 | return; | |
2933 | type = "unknown"; | |
2934 | flags = le32_to_cpu(auth_req->flags); | |
2935 | pairwise_error = false; | |
2936 | group_error = false; | |
2937 | ||
2938 | if (flags & 0x1) | |
2939 | type = "reauth request"; | |
2940 | if (flags & 0x2) | |
2941 | type = "key update request"; | |
2942 | if (flags & 0x6) { | |
2943 | pairwise_error = true; | |
2944 | type = "pairwise_error"; | |
2945 | } | |
2946 | if (flags & 0xe) { | |
2947 | group_error = true; | |
2948 | type = "group_error"; | |
2949 | } | |
2950 | ||
2951 | netdev_info(usbdev->net, "authentication indication: %s (0x%08x)\n", | |
2952 | type, le32_to_cpu(auth_req->flags)); | |
2953 | ||
2954 | if (pairwise_error) { | |
2955 | key_type = NL80211_KEYTYPE_PAIRWISE; | |
2956 | key_id = -1; | |
2957 | ||
2958 | cfg80211_michael_mic_failure(usbdev->net, | |
2959 | auth_req->bssid, | |
2960 | key_type, key_id, NULL, | |
2961 | GFP_KERNEL); | |
2962 | } | |
2963 | ||
2964 | if (group_error) { | |
2965 | key_type = NL80211_KEYTYPE_GROUP; | |
2966 | key_id = -1; | |
2967 | ||
2968 | cfg80211_michael_mic_failure(usbdev->net, | |
2969 | auth_req->bssid, | |
2970 | key_type, key_id, NULL, | |
2971 | GFP_KERNEL); | |
2972 | } | |
2973 | ||
2974 | buflen -= le32_to_cpu(auth_req->length); | |
2975 | buf += le32_to_cpu(auth_req->length); | |
2976 | } | |
2977 | } | |
2978 | ||
2979 | static void rndis_wlan_pmkid_cand_list_indication(struct usbnet *usbdev, | |
2980 | struct ndis_80211_status_indication *indication, | |
2981 | int len) | |
2982 | { | |
2983 | struct ndis_80211_pmkid_cand_list *cand_list; | |
2984 | int list_len, expected_len, i; | |
2985 | ||
2986 | if (len < offsetof(struct ndis_80211_status_indication, u) + | |
2987 | sizeof(struct ndis_80211_pmkid_cand_list)) { | |
2988 | netdev_info(usbdev->net, "pmkid candidate list indication: too short message (%i)\n", | |
2989 | len); | |
2990 | return; | |
2991 | } | |
2992 | ||
2993 | list_len = le32_to_cpu(indication->u.cand_list.num_candidates) * | |
2994 | sizeof(struct ndis_80211_pmkid_candidate); | |
2995 | expected_len = sizeof(struct ndis_80211_pmkid_cand_list) + list_len + | |
2996 | offsetof(struct ndis_80211_status_indication, u); | |
2997 | ||
2998 | if (len < expected_len) { | |
2999 | netdev_info(usbdev->net, "pmkid candidate list indication: list larger than buffer (%i < %i)\n", | |
3000 | len, expected_len); | |
3001 | return; | |
3002 | } | |
3003 | ||
3004 | cand_list = &indication->u.cand_list; | |
3005 | ||
3006 | netdev_info(usbdev->net, "pmkid candidate list indication: version %i, candidates %i\n", | |
3007 | le32_to_cpu(cand_list->version), | |
3008 | le32_to_cpu(cand_list->num_candidates)); | |
3009 | ||
3010 | if (le32_to_cpu(cand_list->version) != 1) | |
3011 | return; | |
3012 | ||
3013 | for (i = 0; i < le32_to_cpu(cand_list->num_candidates); i++) { | |
3014 | struct ndis_80211_pmkid_candidate *cand = | |
3015 | &cand_list->candidate_list[i]; | |
3016 | bool preauth = !!(cand->flags & NDIS_80211_PMKID_CAND_PREAUTH); | |
3017 | ||
3018 | netdev_dbg(usbdev->net, "cand[%i]: flags: 0x%08x, preauth: %d, bssid: %pM\n", | |
3019 | i, le32_to_cpu(cand->flags), preauth, cand->bssid); | |
3020 | ||
3021 | cfg80211_pmksa_candidate_notify(usbdev->net, i, cand->bssid, | |
3022 | preauth, GFP_ATOMIC); | |
3023 | } | |
3024 | } | |
3025 | ||
3026 | static void rndis_wlan_media_specific_indication(struct usbnet *usbdev, | |
3027 | struct rndis_indicate *msg, int buflen) | |
3028 | { | |
3029 | struct ndis_80211_status_indication *indication; | |
3030 | unsigned int len, offset; | |
3031 | ||
3032 | offset = offsetof(struct rndis_indicate, status) + | |
3033 | le32_to_cpu(msg->offset); | |
3034 | len = le32_to_cpu(msg->length); | |
3035 | ||
3036 | if (len < 8) { | |
3037 | netdev_info(usbdev->net, "media specific indication, ignore too short message (%i < 8)\n", | |
3038 | len); | |
3039 | return; | |
3040 | } | |
3041 | ||
3042 | if (len > buflen || offset > buflen || offset + len > buflen) { | |
3043 | netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n", | |
3044 | offset + len, buflen); | |
3045 | return; | |
3046 | } | |
3047 | ||
3048 | indication = (void *)((u8 *)msg + offset); | |
3049 | ||
3050 | switch (le32_to_cpu(indication->status_type)) { | |
3051 | case NDIS_80211_STATUSTYPE_RADIOSTATE: | |
3052 | netdev_info(usbdev->net, "radio state indication: %i\n", | |
3053 | le32_to_cpu(indication->u.radio_status)); | |
3054 | return; | |
3055 | ||
3056 | case NDIS_80211_STATUSTYPE_MEDIASTREAMMODE: | |
3057 | netdev_info(usbdev->net, "media stream mode indication: %i\n", | |
3058 | le32_to_cpu(indication->u.media_stream_mode)); | |
3059 | return; | |
3060 | ||
3061 | case NDIS_80211_STATUSTYPE_AUTHENTICATION: | |
3062 | rndis_wlan_auth_indication(usbdev, indication, len); | |
3063 | return; | |
3064 | ||
3065 | case NDIS_80211_STATUSTYPE_PMKID_CANDIDATELIST: | |
3066 | rndis_wlan_pmkid_cand_list_indication(usbdev, indication, len); | |
3067 | return; | |
3068 | ||
3069 | default: | |
3070 | netdev_info(usbdev->net, "media specific indication: unknown status type 0x%08x\n", | |
3071 | le32_to_cpu(indication->status_type)); | |
3072 | } | |
3073 | } | |
3074 | ||
3075 | static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen) | |
3076 | { | |
3077 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3078 | struct rndis_indicate *msg = ind; | |
3079 | ||
3080 | switch (le32_to_cpu(msg->status)) { | |
3081 | case RNDIS_STATUS_MEDIA_CONNECT: | |
3082 | if (priv->current_command_oid == RNDIS_OID_802_11_ADD_KEY) { | |
3083 | /* RNDIS_OID_802_11_ADD_KEY causes sometimes extra | |
3084 | * "media connect" indications which confuses driver | |
3085 | * and userspace to think that device is | |
3086 | * roaming/reassociating when it isn't. | |
3087 | */ | |
3088 | netdev_dbg(usbdev->net, "ignored RNDIS_OID_802_11_ADD_KEY triggered 'media connect'\n"); | |
3089 | return; | |
3090 | } | |
3091 | ||
3092 | usbnet_pause_rx(usbdev); | |
3093 | ||
3094 | netdev_info(usbdev->net, "media connect\n"); | |
3095 | ||
3096 | /* queue work to avoid recursive calls into rndis_command */ | |
3097 | set_bit(WORK_LINK_UP, &priv->work_pending); | |
3098 | queue_work(priv->workqueue, &priv->work); | |
3099 | break; | |
3100 | ||
3101 | case RNDIS_STATUS_MEDIA_DISCONNECT: | |
3102 | netdev_info(usbdev->net, "media disconnect\n"); | |
3103 | ||
3104 | /* queue work to avoid recursive calls into rndis_command */ | |
3105 | set_bit(WORK_LINK_DOWN, &priv->work_pending); | |
3106 | queue_work(priv->workqueue, &priv->work); | |
3107 | break; | |
3108 | ||
3109 | case RNDIS_STATUS_MEDIA_SPECIFIC_INDICATION: | |
3110 | rndis_wlan_media_specific_indication(usbdev, msg, buflen); | |
3111 | break; | |
3112 | ||
3113 | default: | |
3114 | netdev_info(usbdev->net, "indication: 0x%08x\n", | |
3115 | le32_to_cpu(msg->status)); | |
3116 | break; | |
3117 | } | |
3118 | } | |
3119 | ||
3120 | static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy) | |
3121 | { | |
3122 | struct { | |
3123 | __le32 num_items; | |
3124 | __le32 items[8]; | |
3125 | } networks_supported; | |
3126 | struct ndis_80211_capability *caps; | |
3127 | u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16]; | |
3128 | int len, retval, i, n; | |
3129 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3130 | ||
3131 | /* determine supported modes */ | |
3132 | len = sizeof(networks_supported); | |
3133 | retval = rndis_query_oid(usbdev, | |
3134 | RNDIS_OID_802_11_NETWORK_TYPES_SUPPORTED, | |
3135 | &networks_supported, &len); | |
3136 | if (retval >= 0) { | |
3137 | n = le32_to_cpu(networks_supported.num_items); | |
3138 | if (n > 8) | |
3139 | n = 8; | |
3140 | for (i = 0; i < n; i++) { | |
3141 | switch (le32_to_cpu(networks_supported.items[i])) { | |
3142 | case NDIS_80211_TYPE_FREQ_HOP: | |
3143 | case NDIS_80211_TYPE_DIRECT_SEQ: | |
3144 | priv->caps |= CAP_MODE_80211B; | |
3145 | break; | |
3146 | case NDIS_80211_TYPE_OFDM_A: | |
3147 | priv->caps |= CAP_MODE_80211A; | |
3148 | break; | |
3149 | case NDIS_80211_TYPE_OFDM_G: | |
3150 | priv->caps |= CAP_MODE_80211G; | |
3151 | break; | |
3152 | } | |
3153 | } | |
3154 | } | |
3155 | ||
3156 | /* get device 802.11 capabilities, number of PMKIDs */ | |
3157 | caps = (struct ndis_80211_capability *)caps_buf; | |
3158 | len = sizeof(caps_buf); | |
3159 | retval = rndis_query_oid(usbdev, | |
3160 | RNDIS_OID_802_11_CAPABILITY, | |
3161 | caps, &len); | |
3162 | if (retval >= 0) { | |
3163 | netdev_dbg(usbdev->net, "RNDIS_OID_802_11_CAPABILITY -> len %d, " | |
3164 | "ver %d, pmkids %d, auth-encr-pairs %d\n", | |
3165 | le32_to_cpu(caps->length), | |
3166 | le32_to_cpu(caps->version), | |
3167 | le32_to_cpu(caps->num_pmkids), | |
3168 | le32_to_cpu(caps->num_auth_encr_pair)); | |
3169 | wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids); | |
3170 | } else | |
3171 | wiphy->max_num_pmkids = 0; | |
3172 | ||
3173 | return retval; | |
3174 | } | |
3175 | ||
3176 | static void rndis_do_cqm(struct usbnet *usbdev, s32 rssi) | |
3177 | { | |
3178 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3179 | enum nl80211_cqm_rssi_threshold_event event; | |
3180 | int thold, hyst, last_event; | |
3181 | ||
3182 | if (priv->cqm_rssi_thold >= 0 || rssi >= 0) | |
3183 | return; | |
3184 | if (priv->infra_mode != NDIS_80211_INFRA_INFRA) | |
3185 | return; | |
3186 | ||
3187 | last_event = priv->last_cqm_event_rssi; | |
3188 | thold = priv->cqm_rssi_thold; | |
3189 | hyst = priv->cqm_rssi_hyst; | |
3190 | ||
3191 | if (rssi < thold && (last_event == 0 || rssi < last_event - hyst)) | |
3192 | event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; | |
3193 | else if (rssi > thold && (last_event == 0 || rssi > last_event + hyst)) | |
3194 | event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; | |
3195 | else | |
3196 | return; | |
3197 | ||
3198 | priv->last_cqm_event_rssi = rssi; | |
3199 | cfg80211_cqm_rssi_notify(usbdev->net, event, rssi, GFP_KERNEL); | |
3200 | } | |
3201 | ||
3202 | #define DEVICE_POLLER_JIFFIES (HZ) | |
3203 | static void rndis_device_poller(struct work_struct *work) | |
3204 | { | |
3205 | struct rndis_wlan_private *priv = | |
3206 | container_of(work, struct rndis_wlan_private, | |
3207 | dev_poller_work.work); | |
3208 | struct usbnet *usbdev = priv->usbdev; | |
3209 | __le32 rssi, tmp; | |
3210 | int len, ret, j; | |
3211 | int update_jiffies = DEVICE_POLLER_JIFFIES; | |
3212 | void *buf; | |
3213 | ||
3214 | /* Only check/do workaround when connected. Calling is_associated() | |
3215 | * also polls device with rndis_command() and catches for media link | |
3216 | * indications. | |
3217 | */ | |
3218 | if (!is_associated(usbdev)) { | |
3219 | /* Workaround bad scanning in BCM4320a devices with active | |
3220 | * background scanning when not associated. | |
3221 | */ | |
3222 | if (priv->device_type == RNDIS_BCM4320A && priv->radio_on && | |
3223 | !priv->scan_request) { | |
3224 | /* Get previous scan results */ | |
3225 | rndis_check_bssid_list(usbdev, NULL, NULL); | |
3226 | ||
3227 | /* Initiate new scan */ | |
3228 | rndis_start_bssid_list_scan(usbdev); | |
3229 | } | |
3230 | ||
3231 | goto end; | |
3232 | } | |
3233 | ||
3234 | len = sizeof(rssi); | |
3235 | ret = rndis_query_oid(usbdev, RNDIS_OID_802_11_RSSI, | |
3236 | &rssi, &len); | |
3237 | if (ret == 0) { | |
3238 | priv->last_qual = level_to_qual(le32_to_cpu(rssi)); | |
3239 | rndis_do_cqm(usbdev, le32_to_cpu(rssi)); | |
3240 | } | |
3241 | ||
3242 | netdev_dbg(usbdev->net, "dev-poller: RNDIS_OID_802_11_RSSI -> %d, rssi:%d, qual: %d\n", | |
3243 | ret, le32_to_cpu(rssi), level_to_qual(le32_to_cpu(rssi))); | |
3244 | ||
3245 | /* Workaround transfer stalls on poor quality links. | |
3246 | * TODO: find right way to fix these stalls (as stalls do not happen | |
3247 | * with ndiswrapper/windows driver). */ | |
3248 | if (priv->param_workaround_interval > 0 && priv->last_qual <= 25) { | |
3249 | /* Decrease stats worker interval to catch stalls. | |
3250 | * faster. Faster than 400-500ms causes packet loss, | |
3251 | * Slower doesn't catch stalls fast enough. | |
3252 | */ | |
3253 | j = msecs_to_jiffies(priv->param_workaround_interval); | |
3254 | if (j > DEVICE_POLLER_JIFFIES) | |
3255 | j = DEVICE_POLLER_JIFFIES; | |
3256 | else if (j <= 0) | |
3257 | j = 1; | |
3258 | update_jiffies = j; | |
3259 | ||
3260 | /* Send scan OID. Use of both OIDs is required to get device | |
3261 | * working. | |
3262 | */ | |
3263 | tmp = cpu_to_le32(1); | |
3264 | rndis_set_oid(usbdev, | |
3265 | RNDIS_OID_802_11_BSSID_LIST_SCAN, | |
3266 | &tmp, sizeof(tmp)); | |
3267 | ||
3268 | len = CONTROL_BUFFER_SIZE; | |
3269 | buf = kmalloc(len, GFP_KERNEL); | |
3270 | if (!buf) | |
3271 | goto end; | |
3272 | ||
3273 | rndis_query_oid(usbdev, | |
3274 | RNDIS_OID_802_11_BSSID_LIST, | |
3275 | buf, &len); | |
3276 | kfree(buf); | |
3277 | } | |
3278 | ||
3279 | end: | |
3280 | if (update_jiffies >= HZ) | |
3281 | update_jiffies = round_jiffies_relative(update_jiffies); | |
3282 | else { | |
3283 | j = round_jiffies_relative(update_jiffies); | |
3284 | if (abs(j - update_jiffies) <= 10) | |
3285 | update_jiffies = j; | |
3286 | } | |
3287 | ||
3288 | queue_delayed_work(priv->workqueue, &priv->dev_poller_work, | |
3289 | update_jiffies); | |
3290 | } | |
3291 | ||
3292 | /* | |
3293 | * driver/device initialization | |
3294 | */ | |
3295 | static void rndis_copy_module_params(struct usbnet *usbdev, int device_type) | |
3296 | { | |
3297 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3298 | ||
3299 | priv->device_type = device_type; | |
3300 | ||
3301 | priv->param_country[0] = modparam_country[0]; | |
3302 | priv->param_country[1] = modparam_country[1]; | |
3303 | priv->param_country[2] = 0; | |
3304 | priv->param_frameburst = modparam_frameburst; | |
3305 | priv->param_afterburner = modparam_afterburner; | |
3306 | priv->param_power_save = modparam_power_save; | |
3307 | priv->param_power_output = modparam_power_output; | |
3308 | priv->param_roamtrigger = modparam_roamtrigger; | |
3309 | priv->param_roamdelta = modparam_roamdelta; | |
3310 | ||
3311 | priv->param_country[0] = toupper(priv->param_country[0]); | |
3312 | priv->param_country[1] = toupper(priv->param_country[1]); | |
3313 | /* doesn't support EU as country code, use FI instead */ | |
3314 | if (!strcmp(priv->param_country, "EU")) | |
3315 | strcpy(priv->param_country, "FI"); | |
3316 | ||
3317 | if (priv->param_power_save < 0) | |
3318 | priv->param_power_save = 0; | |
3319 | else if (priv->param_power_save > 2) | |
3320 | priv->param_power_save = 2; | |
3321 | ||
3322 | if (priv->param_power_output < 0) | |
3323 | priv->param_power_output = 0; | |
3324 | else if (priv->param_power_output > 3) | |
3325 | priv->param_power_output = 3; | |
3326 | ||
3327 | if (priv->param_roamtrigger < -80) | |
3328 | priv->param_roamtrigger = -80; | |
3329 | else if (priv->param_roamtrigger > -60) | |
3330 | priv->param_roamtrigger = -60; | |
3331 | ||
3332 | if (priv->param_roamdelta < 0) | |
3333 | priv->param_roamdelta = 0; | |
3334 | else if (priv->param_roamdelta > 2) | |
3335 | priv->param_roamdelta = 2; | |
3336 | ||
3337 | if (modparam_workaround_interval < 0) | |
3338 | priv->param_workaround_interval = 500; | |
3339 | else | |
3340 | priv->param_workaround_interval = modparam_workaround_interval; | |
3341 | } | |
3342 | ||
3343 | static int unknown_early_init(struct usbnet *usbdev) | |
3344 | { | |
3345 | /* copy module parameters for unknown so that iwconfig reports txpower | |
3346 | * and workaround parameter is copied to private structure correctly. | |
3347 | */ | |
3348 | rndis_copy_module_params(usbdev, RNDIS_UNKNOWN); | |
3349 | ||
3350 | /* This is unknown device, so do not try set configuration parameters. | |
3351 | */ | |
3352 | ||
3353 | return 0; | |
3354 | } | |
3355 | ||
3356 | static int bcm4320a_early_init(struct usbnet *usbdev) | |
3357 | { | |
3358 | /* copy module parameters for bcm4320a so that iwconfig reports txpower | |
3359 | * and workaround parameter is copied to private structure correctly. | |
3360 | */ | |
3361 | rndis_copy_module_params(usbdev, RNDIS_BCM4320A); | |
3362 | ||
3363 | /* bcm4320a doesn't handle configuration parameters well. Try | |
3364 | * set any and you get partially zeroed mac and broken device. | |
3365 | */ | |
3366 | ||
3367 | return 0; | |
3368 | } | |
3369 | ||
3370 | static int bcm4320b_early_init(struct usbnet *usbdev) | |
3371 | { | |
3372 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3373 | char buf[8]; | |
3374 | ||
3375 | rndis_copy_module_params(usbdev, RNDIS_BCM4320B); | |
3376 | ||
3377 | /* Early initialization settings, setting these won't have effect | |
3378 | * if called after generic_rndis_bind(). | |
3379 | */ | |
3380 | ||
3381 | rndis_set_config_parameter_str(usbdev, "Country", priv->param_country); | |
3382 | rndis_set_config_parameter_str(usbdev, "FrameBursting", | |
3383 | priv->param_frameburst ? "1" : "0"); | |
3384 | rndis_set_config_parameter_str(usbdev, "Afterburner", | |
3385 | priv->param_afterburner ? "1" : "0"); | |
3386 | sprintf(buf, "%d", priv->param_power_save); | |
3387 | rndis_set_config_parameter_str(usbdev, "PowerSaveMode", buf); | |
3388 | sprintf(buf, "%d", priv->param_power_output); | |
3389 | rndis_set_config_parameter_str(usbdev, "PwrOut", buf); | |
3390 | sprintf(buf, "%d", priv->param_roamtrigger); | |
3391 | rndis_set_config_parameter_str(usbdev, "RoamTrigger", buf); | |
3392 | sprintf(buf, "%d", priv->param_roamdelta); | |
3393 | rndis_set_config_parameter_str(usbdev, "RoamDelta", buf); | |
3394 | ||
3395 | return 0; | |
3396 | } | |
3397 | ||
3398 | /* same as rndis_netdev_ops but with local multicast handler */ | |
3399 | static const struct net_device_ops rndis_wlan_netdev_ops = { | |
3400 | .ndo_open = usbnet_open, | |
3401 | .ndo_stop = usbnet_stop, | |
3402 | .ndo_start_xmit = usbnet_start_xmit, | |
3403 | .ndo_tx_timeout = usbnet_tx_timeout, | |
3404 | .ndo_get_stats64 = usbnet_get_stats64, | |
3405 | .ndo_set_mac_address = eth_mac_addr, | |
3406 | .ndo_validate_addr = eth_validate_addr, | |
3407 | .ndo_set_rx_mode = rndis_wlan_set_multicast_list, | |
3408 | }; | |
3409 | ||
3410 | static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf) | |
3411 | { | |
3412 | struct wiphy *wiphy; | |
3413 | struct rndis_wlan_private *priv; | |
3414 | int retval, len; | |
3415 | __le32 tmp; | |
3416 | ||
3417 | /* allocate wiphy and rndis private data | |
3418 | * NOTE: We only support a single virtual interface, so wiphy | |
3419 | * and wireless_dev are somewhat synonymous for this device. | |
3420 | */ | |
3421 | wiphy = wiphy_new(&rndis_config_ops, sizeof(struct rndis_wlan_private)); | |
3422 | if (!wiphy) | |
3423 | return -ENOMEM; | |
3424 | ||
3425 | priv = wiphy_priv(wiphy); | |
3426 | usbdev->net->ieee80211_ptr = &priv->wdev; | |
3427 | priv->wdev.wiphy = wiphy; | |
3428 | priv->wdev.iftype = NL80211_IFTYPE_STATION; | |
3429 | ||
3430 | /* These have to be initialized before calling generic_rndis_bind(). | |
3431 | * Otherwise we'll be in big trouble in rndis_wlan_early_init(). | |
3432 | */ | |
3433 | usbdev->driver_priv = priv; | |
3434 | priv->usbdev = usbdev; | |
3435 | ||
3436 | mutex_init(&priv->command_lock); | |
3437 | ||
3438 | /* because rndis_command() sleeps we need to use workqueue */ | |
3439 | priv->workqueue = create_singlethread_workqueue("rndis_wlan"); | |
3440 | if (!priv->workqueue) { | |
3441 | wiphy_free(wiphy); | |
3442 | return -ENOMEM; | |
3443 | } | |
3444 | INIT_WORK(&priv->work, rndis_wlan_worker); | |
3445 | INIT_DELAYED_WORK(&priv->dev_poller_work, rndis_device_poller); | |
3446 | INIT_DELAYED_WORK(&priv->scan_work, rndis_get_scan_results); | |
3447 | ||
3448 | /* try bind rndis_host */ | |
3449 | retval = generic_rndis_bind(usbdev, intf, FLAG_RNDIS_PHYM_WIRELESS); | |
3450 | if (retval < 0) | |
3451 | goto fail; | |
3452 | ||
3453 | /* generic_rndis_bind set packet filter to multicast_all+ | |
3454 | * promisc mode which doesn't work well for our devices (device | |
3455 | * picks up rssi to closest station instead of to access point). | |
3456 | * | |
3457 | * rndis_host wants to avoid all OID as much as possible | |
3458 | * so do promisc/multicast handling in rndis_wlan. | |
3459 | */ | |
3460 | usbdev->net->netdev_ops = &rndis_wlan_netdev_ops; | |
3461 | ||
3462 | tmp = cpu_to_le32(RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST); | |
3463 | retval = rndis_set_oid(usbdev, | |
3464 | RNDIS_OID_GEN_CURRENT_PACKET_FILTER, | |
3465 | &tmp, sizeof(tmp)); | |
3466 | ||
3467 | len = sizeof(tmp); | |
3468 | retval = rndis_query_oid(usbdev, | |
3469 | RNDIS_OID_802_3_MAXIMUM_LIST_SIZE, | |
3470 | &tmp, &len); | |
3471 | priv->multicast_size = le32_to_cpu(tmp); | |
3472 | if (retval < 0 || priv->multicast_size < 0) | |
3473 | priv->multicast_size = 0; | |
3474 | if (priv->multicast_size > 0) | |
3475 | usbdev->net->flags |= IFF_MULTICAST; | |
3476 | else | |
3477 | usbdev->net->flags &= ~IFF_MULTICAST; | |
3478 | ||
3479 | /* fill-out wiphy structure and register w/ cfg80211 */ | |
3480 | memcpy(wiphy->perm_addr, usbdev->net->dev_addr, ETH_ALEN); | |
3481 | wiphy->privid = rndis_wiphy_privid; | |
3482 | wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
3483 | | BIT(NL80211_IFTYPE_ADHOC); | |
3484 | wiphy->max_scan_ssids = 1; | |
3485 | ||
3486 | /* TODO: fill-out band/encr information based on priv->caps */ | |
3487 | rndis_wlan_get_caps(usbdev, wiphy); | |
3488 | ||
3489 | memcpy(priv->channels, rndis_channels, sizeof(rndis_channels)); | |
3490 | memcpy(priv->rates, rndis_rates, sizeof(rndis_rates)); | |
3491 | priv->band.channels = priv->channels; | |
3492 | priv->band.n_channels = ARRAY_SIZE(rndis_channels); | |
3493 | priv->band.bitrates = priv->rates; | |
3494 | priv->band.n_bitrates = ARRAY_SIZE(rndis_rates); | |
3495 | wiphy->bands[NL80211_BAND_2GHZ] = &priv->band; | |
3496 | wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
3497 | ||
3498 | memcpy(priv->cipher_suites, rndis_cipher_suites, | |
3499 | sizeof(rndis_cipher_suites)); | |
3500 | wiphy->cipher_suites = priv->cipher_suites; | |
3501 | wiphy->n_cipher_suites = ARRAY_SIZE(rndis_cipher_suites); | |
3502 | ||
3503 | set_wiphy_dev(wiphy, &usbdev->udev->dev); | |
3504 | ||
3505 | if (wiphy_register(wiphy)) { | |
3506 | retval = -ENODEV; | |
3507 | goto fail; | |
3508 | } | |
3509 | ||
3510 | set_default_iw_params(usbdev); | |
3511 | ||
3512 | priv->power_mode = -1; | |
3513 | ||
3514 | /* set default rts/frag */ | |
3515 | rndis_set_wiphy_params(wiphy, | |
3516 | WIPHY_PARAM_FRAG_THRESHOLD | WIPHY_PARAM_RTS_THRESHOLD); | |
3517 | ||
3518 | /* turn radio off on init */ | |
3519 | priv->radio_on = false; | |
3520 | disassociate(usbdev, false); | |
3521 | netif_carrier_off(usbdev->net); | |
3522 | ||
3523 | return 0; | |
3524 | ||
3525 | fail: | |
3526 | cancel_delayed_work_sync(&priv->dev_poller_work); | |
3527 | cancel_delayed_work_sync(&priv->scan_work); | |
3528 | cancel_work_sync(&priv->work); | |
3529 | flush_workqueue(priv->workqueue); | |
3530 | destroy_workqueue(priv->workqueue); | |
3531 | ||
3532 | wiphy_free(wiphy); | |
3533 | return retval; | |
3534 | } | |
3535 | ||
3536 | static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf) | |
3537 | { | |
3538 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3539 | ||
3540 | /* turn radio off */ | |
3541 | disassociate(usbdev, false); | |
3542 | ||
3543 | cancel_delayed_work_sync(&priv->dev_poller_work); | |
3544 | cancel_delayed_work_sync(&priv->scan_work); | |
3545 | cancel_work_sync(&priv->work); | |
3546 | flush_workqueue(priv->workqueue); | |
3547 | destroy_workqueue(priv->workqueue); | |
3548 | ||
3549 | rndis_unbind(usbdev, intf); | |
3550 | ||
3551 | wiphy_unregister(priv->wdev.wiphy); | |
3552 | wiphy_free(priv->wdev.wiphy); | |
3553 | } | |
3554 | ||
3555 | static int rndis_wlan_reset(struct usbnet *usbdev) | |
3556 | { | |
3557 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3558 | int retval; | |
3559 | ||
3560 | netdev_dbg(usbdev->net, "%s()\n", __func__); | |
3561 | ||
3562 | retval = rndis_reset(usbdev); | |
3563 | if (retval) | |
3564 | netdev_warn(usbdev->net, "rndis_reset failed: %d\n", retval); | |
3565 | ||
3566 | /* rndis_reset cleared multicast list, so restore here. | |
3567 | (set_multicast_list() also turns on current packet filter) */ | |
3568 | set_multicast_list(usbdev); | |
3569 | ||
3570 | queue_delayed_work(priv->workqueue, &priv->dev_poller_work, | |
3571 | round_jiffies_relative(DEVICE_POLLER_JIFFIES)); | |
3572 | ||
3573 | return deauthenticate(usbdev); | |
3574 | } | |
3575 | ||
3576 | static int rndis_wlan_stop(struct usbnet *usbdev) | |
3577 | { | |
3578 | struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); | |
3579 | int retval; | |
3580 | __le32 filter; | |
3581 | ||
3582 | netdev_dbg(usbdev->net, "%s()\n", __func__); | |
3583 | ||
3584 | retval = disassociate(usbdev, false); | |
3585 | ||
3586 | priv->work_pending = 0; | |
3587 | cancel_delayed_work_sync(&priv->dev_poller_work); | |
3588 | cancel_delayed_work_sync(&priv->scan_work); | |
3589 | cancel_work_sync(&priv->work); | |
3590 | flush_workqueue(priv->workqueue); | |
3591 | ||
3592 | if (priv->scan_request) { | |
3593 | struct cfg80211_scan_info info = { | |
3594 | .aborted = true, | |
3595 | }; | |
3596 | ||
3597 | cfg80211_scan_done(priv->scan_request, &info); | |
3598 | priv->scan_request = NULL; | |
3599 | } | |
3600 | ||
3601 | /* Set current packet filter zero to block receiving data packets from | |
3602 | device. */ | |
3603 | filter = 0; | |
3604 | rndis_set_oid(usbdev, RNDIS_OID_GEN_CURRENT_PACKET_FILTER, &filter, | |
3605 | sizeof(filter)); | |
3606 | ||
3607 | return retval; | |
3608 | } | |
3609 | ||
3610 | static const struct driver_info bcm4320b_info = { | |
3611 | .description = "Wireless RNDIS device, BCM4320b based", | |
3612 | .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | | |
3613 | FLAG_AVOID_UNLINK_URBS, | |
3614 | .bind = rndis_wlan_bind, | |
3615 | .unbind = rndis_wlan_unbind, | |
3616 | .status = rndis_status, | |
3617 | .rx_fixup = rndis_rx_fixup, | |
3618 | .tx_fixup = rndis_tx_fixup, | |
3619 | .reset = rndis_wlan_reset, | |
3620 | .stop = rndis_wlan_stop, | |
3621 | .early_init = bcm4320b_early_init, | |
3622 | .indication = rndis_wlan_indication, | |
3623 | }; | |
3624 | ||
3625 | static const struct driver_info bcm4320a_info = { | |
3626 | .description = "Wireless RNDIS device, BCM4320a based", | |
3627 | .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | | |
3628 | FLAG_AVOID_UNLINK_URBS, | |
3629 | .bind = rndis_wlan_bind, | |
3630 | .unbind = rndis_wlan_unbind, | |
3631 | .status = rndis_status, | |
3632 | .rx_fixup = rndis_rx_fixup, | |
3633 | .tx_fixup = rndis_tx_fixup, | |
3634 | .reset = rndis_wlan_reset, | |
3635 | .stop = rndis_wlan_stop, | |
3636 | .early_init = bcm4320a_early_init, | |
3637 | .indication = rndis_wlan_indication, | |
3638 | }; | |
3639 | ||
3640 | static const struct driver_info rndis_wlan_info = { | |
3641 | .description = "Wireless RNDIS device", | |
3642 | .flags = FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT | | |
3643 | FLAG_AVOID_UNLINK_URBS, | |
3644 | .bind = rndis_wlan_bind, | |
3645 | .unbind = rndis_wlan_unbind, | |
3646 | .status = rndis_status, | |
3647 | .rx_fixup = rndis_rx_fixup, | |
3648 | .tx_fixup = rndis_tx_fixup, | |
3649 | .reset = rndis_wlan_reset, | |
3650 | .stop = rndis_wlan_stop, | |
3651 | .early_init = unknown_early_init, | |
3652 | .indication = rndis_wlan_indication, | |
3653 | }; | |
3654 | ||
3655 | /*-------------------------------------------------------------------------*/ | |
3656 | ||
3657 | static const struct usb_device_id products [] = { | |
3658 | #define RNDIS_MASTER_INTERFACE \ | |
3659 | .bInterfaceClass = USB_CLASS_COMM, \ | |
3660 | .bInterfaceSubClass = 2 /* ACM */, \ | |
3661 | .bInterfaceProtocol = 0x0ff | |
3662 | ||
3663 | /* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom | |
3664 | * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki. | |
3665 | */ | |
3666 | { | |
3667 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3668 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3669 | .idVendor = 0x0411, | |
3670 | .idProduct = 0x00bc, /* Buffalo WLI-U2-KG125S */ | |
3671 | RNDIS_MASTER_INTERFACE, | |
3672 | .driver_info = (unsigned long) &bcm4320b_info, | |
3673 | }, { | |
3674 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3675 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3676 | .idVendor = 0x0baf, | |
3677 | .idProduct = 0x011b, /* U.S. Robotics USR5421 */ | |
3678 | RNDIS_MASTER_INTERFACE, | |
3679 | .driver_info = (unsigned long) &bcm4320b_info, | |
3680 | }, { | |
3681 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3682 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3683 | .idVendor = 0x050d, | |
3684 | .idProduct = 0x011b, /* Belkin F5D7051 */ | |
3685 | RNDIS_MASTER_INTERFACE, | |
3686 | .driver_info = (unsigned long) &bcm4320b_info, | |
3687 | }, { | |
3688 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3689 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3690 | .idVendor = 0x1799, /* Belkin has two vendor ids */ | |
3691 | .idProduct = 0x011b, /* Belkin F5D7051 */ | |
3692 | RNDIS_MASTER_INTERFACE, | |
3693 | .driver_info = (unsigned long) &bcm4320b_info, | |
3694 | }, { | |
3695 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3696 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3697 | .idVendor = 0x13b1, | |
3698 | .idProduct = 0x0014, /* Linksys WUSB54GSv2 */ | |
3699 | RNDIS_MASTER_INTERFACE, | |
3700 | .driver_info = (unsigned long) &bcm4320b_info, | |
3701 | }, { | |
3702 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3703 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3704 | .idVendor = 0x13b1, | |
3705 | .idProduct = 0x0026, /* Linksys WUSB54GSC */ | |
3706 | RNDIS_MASTER_INTERFACE, | |
3707 | .driver_info = (unsigned long) &bcm4320b_info, | |
3708 | }, { | |
3709 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3710 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3711 | .idVendor = 0x0b05, | |
3712 | .idProduct = 0x1717, /* Asus WL169gE */ | |
3713 | RNDIS_MASTER_INTERFACE, | |
3714 | .driver_info = (unsigned long) &bcm4320b_info, | |
3715 | }, { | |
3716 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3717 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3718 | .idVendor = 0x0a5c, | |
3719 | .idProduct = 0xd11b, /* Eminent EM4045 */ | |
3720 | RNDIS_MASTER_INTERFACE, | |
3721 | .driver_info = (unsigned long) &bcm4320b_info, | |
3722 | }, { | |
3723 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3724 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3725 | .idVendor = 0x1690, | |
3726 | .idProduct = 0x0715, /* BT Voyager 1055 */ | |
3727 | RNDIS_MASTER_INTERFACE, | |
3728 | .driver_info = (unsigned long) &bcm4320b_info, | |
3729 | }, | |
3730 | /* These devices have DriverVer < 4.xx.xx.xx and do not have any custom | |
3731 | * parameters available, hardware probably contain older firmware version with | |
3732 | * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki. | |
3733 | */ | |
3734 | { | |
3735 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3736 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3737 | .idVendor = 0x13b1, | |
3738 | .idProduct = 0x000e, /* Linksys WUSB54GSv1 */ | |
3739 | RNDIS_MASTER_INTERFACE, | |
3740 | .driver_info = (unsigned long) &bcm4320a_info, | |
3741 | }, { | |
3742 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3743 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3744 | .idVendor = 0x0baf, | |
3745 | .idProduct = 0x0111, /* U.S. Robotics USR5420 */ | |
3746 | RNDIS_MASTER_INTERFACE, | |
3747 | .driver_info = (unsigned long) &bcm4320a_info, | |
3748 | }, { | |
3749 | .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | |
3750 | | USB_DEVICE_ID_MATCH_DEVICE, | |
3751 | .idVendor = 0x0411, | |
3752 | .idProduct = 0x004b, /* BUFFALO WLI-USB-G54 */ | |
3753 | RNDIS_MASTER_INTERFACE, | |
3754 | .driver_info = (unsigned long) &bcm4320a_info, | |
3755 | }, | |
3756 | /* Generic Wireless RNDIS devices that we don't have exact | |
3757 | * idVendor/idProduct/chip yet. | |
3758 | */ | |
3759 | { | |
3760 | /* RNDIS is MSFT's un-official variant of CDC ACM */ | |
3761 | USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff), | |
3762 | .driver_info = (unsigned long) &rndis_wlan_info, | |
3763 | }, { | |
3764 | /* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */ | |
3765 | USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1), | |
3766 | .driver_info = (unsigned long) &rndis_wlan_info, | |
3767 | }, | |
3768 | { }, // END | |
3769 | }; | |
3770 | MODULE_DEVICE_TABLE(usb, products); | |
3771 | ||
3772 | static struct usb_driver rndis_wlan_driver = { | |
3773 | .name = "rndis_wlan", | |
3774 | .id_table = products, | |
3775 | .probe = usbnet_probe, | |
3776 | .disconnect = usbnet_disconnect, | |
3777 | .suspend = usbnet_suspend, | |
3778 | .resume = usbnet_resume, | |
3779 | .disable_hub_initiated_lpm = 1, | |
3780 | }; | |
3781 | ||
3782 | module_usb_driver(rndis_wlan_driver); | |
3783 | ||
3784 | MODULE_AUTHOR("Bjorge Dijkstra"); | |
3785 | MODULE_AUTHOR("Jussi Kivilinna"); | |
3786 | MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters"); | |
3787 | MODULE_LICENSE("GPL"); | |
3788 |