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bdcd8170 KV |
1 | /* |
2 | * Copyright (c) 2004-2011 Atheros Communications Inc. | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include "core.h" | |
18 | #include "cfg80211.h" | |
19 | #include "debug.h" | |
abcb344b | 20 | #include "hif-ops.h" |
bdcd8170 KV |
21 | |
22 | #define RATETAB_ENT(_rate, _rateid, _flags) { \ | |
23 | .bitrate = (_rate), \ | |
24 | .flags = (_flags), \ | |
25 | .hw_value = (_rateid), \ | |
26 | } | |
27 | ||
28 | #define CHAN2G(_channel, _freq, _flags) { \ | |
29 | .band = IEEE80211_BAND_2GHZ, \ | |
30 | .hw_value = (_channel), \ | |
31 | .center_freq = (_freq), \ | |
32 | .flags = (_flags), \ | |
33 | .max_antenna_gain = 0, \ | |
34 | .max_power = 30, \ | |
35 | } | |
36 | ||
37 | #define CHAN5G(_channel, _flags) { \ | |
38 | .band = IEEE80211_BAND_5GHZ, \ | |
39 | .hw_value = (_channel), \ | |
40 | .center_freq = 5000 + (5 * (_channel)), \ | |
41 | .flags = (_flags), \ | |
42 | .max_antenna_gain = 0, \ | |
43 | .max_power = 30, \ | |
44 | } | |
45 | ||
46 | static struct ieee80211_rate ath6kl_rates[] = { | |
47 | RATETAB_ENT(10, 0x1, 0), | |
48 | RATETAB_ENT(20, 0x2, 0), | |
49 | RATETAB_ENT(55, 0x4, 0), | |
50 | RATETAB_ENT(110, 0x8, 0), | |
51 | RATETAB_ENT(60, 0x10, 0), | |
52 | RATETAB_ENT(90, 0x20, 0), | |
53 | RATETAB_ENT(120, 0x40, 0), | |
54 | RATETAB_ENT(180, 0x80, 0), | |
55 | RATETAB_ENT(240, 0x100, 0), | |
56 | RATETAB_ENT(360, 0x200, 0), | |
57 | RATETAB_ENT(480, 0x400, 0), | |
58 | RATETAB_ENT(540, 0x800, 0), | |
59 | }; | |
60 | ||
61 | #define ath6kl_a_rates (ath6kl_rates + 4) | |
62 | #define ath6kl_a_rates_size 8 | |
63 | #define ath6kl_g_rates (ath6kl_rates + 0) | |
64 | #define ath6kl_g_rates_size 12 | |
65 | ||
66 | static struct ieee80211_channel ath6kl_2ghz_channels[] = { | |
67 | CHAN2G(1, 2412, 0), | |
68 | CHAN2G(2, 2417, 0), | |
69 | CHAN2G(3, 2422, 0), | |
70 | CHAN2G(4, 2427, 0), | |
71 | CHAN2G(5, 2432, 0), | |
72 | CHAN2G(6, 2437, 0), | |
73 | CHAN2G(7, 2442, 0), | |
74 | CHAN2G(8, 2447, 0), | |
75 | CHAN2G(9, 2452, 0), | |
76 | CHAN2G(10, 2457, 0), | |
77 | CHAN2G(11, 2462, 0), | |
78 | CHAN2G(12, 2467, 0), | |
79 | CHAN2G(13, 2472, 0), | |
80 | CHAN2G(14, 2484, 0), | |
81 | }; | |
82 | ||
83 | static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { | |
84 | CHAN5G(34, 0), CHAN5G(36, 0), | |
85 | CHAN5G(38, 0), CHAN5G(40, 0), | |
86 | CHAN5G(42, 0), CHAN5G(44, 0), | |
87 | CHAN5G(46, 0), CHAN5G(48, 0), | |
88 | CHAN5G(52, 0), CHAN5G(56, 0), | |
89 | CHAN5G(60, 0), CHAN5G(64, 0), | |
90 | CHAN5G(100, 0), CHAN5G(104, 0), | |
91 | CHAN5G(108, 0), CHAN5G(112, 0), | |
92 | CHAN5G(116, 0), CHAN5G(120, 0), | |
93 | CHAN5G(124, 0), CHAN5G(128, 0), | |
94 | CHAN5G(132, 0), CHAN5G(136, 0), | |
95 | CHAN5G(140, 0), CHAN5G(149, 0), | |
96 | CHAN5G(153, 0), CHAN5G(157, 0), | |
97 | CHAN5G(161, 0), CHAN5G(165, 0), | |
98 | CHAN5G(184, 0), CHAN5G(188, 0), | |
99 | CHAN5G(192, 0), CHAN5G(196, 0), | |
100 | CHAN5G(200, 0), CHAN5G(204, 0), | |
101 | CHAN5G(208, 0), CHAN5G(212, 0), | |
102 | CHAN5G(216, 0), | |
103 | }; | |
104 | ||
105 | static struct ieee80211_supported_band ath6kl_band_2ghz = { | |
106 | .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), | |
107 | .channels = ath6kl_2ghz_channels, | |
108 | .n_bitrates = ath6kl_g_rates_size, | |
109 | .bitrates = ath6kl_g_rates, | |
110 | }; | |
111 | ||
112 | static struct ieee80211_supported_band ath6kl_band_5ghz = { | |
113 | .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), | |
114 | .channels = ath6kl_5ghz_a_channels, | |
115 | .n_bitrates = ath6kl_a_rates_size, | |
116 | .bitrates = ath6kl_a_rates, | |
117 | }; | |
118 | ||
119 | static int ath6kl_set_wpa_version(struct ath6kl *ar, | |
120 | enum nl80211_wpa_versions wpa_version) | |
121 | { | |
122 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); | |
123 | ||
124 | if (!wpa_version) { | |
125 | ar->auth_mode = NONE_AUTH; | |
126 | } else if (wpa_version & NL80211_WPA_VERSION_2) { | |
127 | ar->auth_mode = WPA2_AUTH; | |
128 | } else if (wpa_version & NL80211_WPA_VERSION_1) { | |
129 | ar->auth_mode = WPA_AUTH; | |
130 | } else { | |
131 | ath6kl_err("%s: %u not supported\n", __func__, wpa_version); | |
132 | return -ENOTSUPP; | |
133 | } | |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
138 | static int ath6kl_set_auth_type(struct ath6kl *ar, | |
139 | enum nl80211_auth_type auth_type) | |
140 | { | |
141 | ||
142 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); | |
143 | ||
144 | switch (auth_type) { | |
145 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
146 | ar->dot11_auth_mode = OPEN_AUTH; | |
147 | break; | |
148 | case NL80211_AUTHTYPE_SHARED_KEY: | |
149 | ar->dot11_auth_mode = SHARED_AUTH; | |
150 | break; | |
151 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
152 | ar->dot11_auth_mode = LEAP_AUTH; | |
153 | break; | |
154 | ||
155 | case NL80211_AUTHTYPE_AUTOMATIC: | |
156 | ar->dot11_auth_mode = OPEN_AUTH; | |
157 | ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS; | |
158 | break; | |
159 | ||
160 | default: | |
161 | ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type); | |
162 | return -ENOTSUPP; | |
163 | } | |
164 | ||
165 | return 0; | |
166 | } | |
167 | ||
168 | static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast) | |
169 | { | |
170 | u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto; | |
38acde3c EL |
171 | u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : |
172 | &ar->grp_crypto_len; | |
bdcd8170 KV |
173 | |
174 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", | |
175 | __func__, cipher, ucast); | |
176 | ||
177 | switch (cipher) { | |
178 | case 0: | |
179 | /* our own hack to use value 0 as no crypto used */ | |
180 | *ar_cipher = NONE_CRYPT; | |
181 | *ar_cipher_len = 0; | |
182 | break; | |
183 | case WLAN_CIPHER_SUITE_WEP40: | |
184 | *ar_cipher = WEP_CRYPT; | |
185 | *ar_cipher_len = 5; | |
186 | break; | |
187 | case WLAN_CIPHER_SUITE_WEP104: | |
188 | *ar_cipher = WEP_CRYPT; | |
189 | *ar_cipher_len = 13; | |
190 | break; | |
191 | case WLAN_CIPHER_SUITE_TKIP: | |
192 | *ar_cipher = TKIP_CRYPT; | |
193 | *ar_cipher_len = 0; | |
194 | break; | |
195 | case WLAN_CIPHER_SUITE_CCMP: | |
196 | *ar_cipher = AES_CRYPT; | |
197 | *ar_cipher_len = 0; | |
198 | break; | |
199 | default: | |
200 | ath6kl_err("cipher 0x%x not supported\n", cipher); | |
201 | return -ENOTSUPP; | |
202 | } | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt) | |
208 | { | |
209 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); | |
210 | ||
211 | if (key_mgmt == WLAN_AKM_SUITE_PSK) { | |
212 | if (ar->auth_mode == WPA_AUTH) | |
213 | ar->auth_mode = WPA_PSK_AUTH; | |
214 | else if (ar->auth_mode == WPA2_AUTH) | |
215 | ar->auth_mode = WPA2_PSK_AUTH; | |
216 | } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { | |
217 | ar->auth_mode = NONE_AUTH; | |
218 | } | |
219 | } | |
220 | ||
221 | static bool ath6kl_cfg80211_ready(struct ath6kl *ar) | |
222 | { | |
223 | if (!test_bit(WMI_READY, &ar->flag)) { | |
224 | ath6kl_err("wmi is not ready\n"); | |
225 | return false; | |
226 | } | |
227 | ||
575b5f34 | 228 | if (!test_bit(WLAN_ENABLED, &ar->flag)) { |
bdcd8170 KV |
229 | ath6kl_err("wlan disabled\n"); |
230 | return false; | |
231 | } | |
232 | ||
233 | return true; | |
234 | } | |
235 | ||
236 | static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, | |
237 | struct cfg80211_connect_params *sme) | |
238 | { | |
239 | struct ath6kl *ar = ath6kl_priv(dev); | |
240 | int status; | |
241 | ||
242 | ar->sme_state = SME_CONNECTING; | |
243 | ||
244 | if (!ath6kl_cfg80211_ready(ar)) | |
245 | return -EIO; | |
246 | ||
247 | if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { | |
248 | ath6kl_err("destroy in progress\n"); | |
249 | return -EBUSY; | |
250 | } | |
251 | ||
252 | if (test_bit(SKIP_SCAN, &ar->flag) && | |
253 | ((sme->channel && sme->channel->center_freq == 0) || | |
254 | (sme->bssid && is_zero_ether_addr(sme->bssid)))) { | |
255 | ath6kl_err("SkipScan: channel or bssid invalid\n"); | |
256 | return -EINVAL; | |
257 | } | |
258 | ||
259 | if (down_interruptible(&ar->sem)) { | |
260 | ath6kl_err("busy, couldn't get access\n"); | |
261 | return -ERESTARTSYS; | |
262 | } | |
263 | ||
264 | if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { | |
265 | ath6kl_err("busy, destroy in progress\n"); | |
266 | up(&ar->sem); | |
267 | return -EBUSY; | |
268 | } | |
269 | ||
270 | if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { | |
271 | /* | |
272 | * sleep until the command queue drains | |
273 | */ | |
274 | wait_event_interruptible_timeout(ar->event_wq, | |
275 | ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0, | |
276 | WMI_TIMEOUT); | |
277 | if (signal_pending(current)) { | |
278 | ath6kl_err("cmd queue drain timeout\n"); | |
279 | up(&ar->sem); | |
280 | return -EINTR; | |
281 | } | |
282 | } | |
283 | ||
284 | if (test_bit(CONNECTED, &ar->flag) && | |
285 | ar->ssid_len == sme->ssid_len && | |
286 | !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { | |
287 | ar->reconnect_flag = true; | |
288 | status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid, | |
289 | ar->ch_hint); | |
290 | ||
291 | up(&ar->sem); | |
292 | if (status) { | |
293 | ath6kl_err("wmi_reconnect_cmd failed\n"); | |
294 | return -EIO; | |
295 | } | |
296 | return 0; | |
297 | } else if (ar->ssid_len == sme->ssid_len && | |
298 | !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { | |
299 | ath6kl_disconnect(ar); | |
300 | } | |
301 | ||
302 | memset(ar->ssid, 0, sizeof(ar->ssid)); | |
303 | ar->ssid_len = sme->ssid_len; | |
304 | memcpy(ar->ssid, sme->ssid, sme->ssid_len); | |
305 | ||
306 | if (sme->channel) | |
307 | ar->ch_hint = sme->channel->center_freq; | |
308 | ||
309 | memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); | |
310 | if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) | |
311 | memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid)); | |
312 | ||
313 | ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions); | |
314 | ||
315 | status = ath6kl_set_auth_type(ar, sme->auth_type); | |
316 | if (status) { | |
317 | up(&ar->sem); | |
318 | return status; | |
319 | } | |
320 | ||
321 | if (sme->crypto.n_ciphers_pairwise) | |
322 | ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true); | |
323 | else | |
324 | ath6kl_set_cipher(ar, 0, true); | |
325 | ||
326 | ath6kl_set_cipher(ar, sme->crypto.cipher_group, false); | |
327 | ||
328 | if (sme->crypto.n_akm_suites) | |
329 | ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]); | |
330 | ||
331 | if ((sme->key_len) && | |
332 | (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) { | |
333 | struct ath6kl_key *key = NULL; | |
334 | ||
335 | if (sme->key_idx < WMI_MIN_KEY_INDEX || | |
336 | sme->key_idx > WMI_MAX_KEY_INDEX) { | |
337 | ath6kl_err("key index %d out of bounds\n", | |
338 | sme->key_idx); | |
339 | up(&ar->sem); | |
340 | return -ENOENT; | |
341 | } | |
342 | ||
343 | key = &ar->keys[sme->key_idx]; | |
344 | key->key_len = sme->key_len; | |
345 | memcpy(key->key, sme->key, key->key_len); | |
346 | key->cipher = ar->prwise_crypto; | |
347 | ar->def_txkey_index = sme->key_idx; | |
348 | ||
349 | ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx, | |
350 | ar->prwise_crypto, | |
351 | GROUP_USAGE | TX_USAGE, | |
352 | key->key_len, | |
353 | NULL, | |
354 | key->key, KEY_OP_INIT_VAL, NULL, | |
355 | NO_SYNC_WMIFLAG); | |
356 | } | |
357 | ||
358 | if (!ar->usr_bss_filter) { | |
359 | if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) { | |
360 | ath6kl_err("couldn't set bss filtering\n"); | |
361 | up(&ar->sem); | |
362 | return -EIO; | |
363 | } | |
364 | } | |
365 | ||
366 | ar->nw_type = ar->next_mode; | |
367 | ||
368 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
369 | "%s: connect called with authmode %d dot11 auth %d" | |
370 | " PW crypto %d PW crypto len %d GRP crypto %d" | |
371 | " GRP crypto len %d channel hint %u\n", | |
372 | __func__, | |
373 | ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, | |
374 | ar->prwise_crypto_len, ar->grp_crypto, | |
38acde3c | 375 | ar->grp_crypto_len, ar->ch_hint); |
bdcd8170 KV |
376 | |
377 | ar->reconnect_flag = 0; | |
378 | status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, | |
379 | ar->dot11_auth_mode, ar->auth_mode, | |
380 | ar->prwise_crypto, | |
381 | ar->prwise_crypto_len, | |
38acde3c | 382 | ar->grp_crypto, ar->grp_crypto_len, |
bdcd8170 KV |
383 | ar->ssid_len, ar->ssid, |
384 | ar->req_bssid, ar->ch_hint, | |
385 | ar->connect_ctrl_flags); | |
386 | ||
387 | up(&ar->sem); | |
388 | ||
389 | if (status == -EINVAL) { | |
390 | memset(ar->ssid, 0, sizeof(ar->ssid)); | |
391 | ar->ssid_len = 0; | |
392 | ath6kl_err("invalid request\n"); | |
393 | return -ENOENT; | |
394 | } else if (status) { | |
395 | ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); | |
396 | return -EIO; | |
397 | } | |
398 | ||
399 | if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && | |
400 | ((ar->auth_mode == WPA_PSK_AUTH) | |
401 | || (ar->auth_mode == WPA2_PSK_AUTH))) { | |
402 | mod_timer(&ar->disconnect_timer, | |
403 | jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); | |
404 | } | |
405 | ||
406 | ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; | |
407 | set_bit(CONNECT_PEND, &ar->flag); | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, | |
413 | u8 *bssid, u16 listen_intvl, | |
414 | u16 beacon_intvl, | |
415 | enum network_type nw_type, | |
416 | u8 beacon_ie_len, u8 assoc_req_len, | |
417 | u8 assoc_resp_len, u8 *assoc_info) | |
418 | { | |
419 | u16 size = 0; | |
420 | u16 capability = 0; | |
421 | struct cfg80211_bss *bss = NULL; | |
422 | struct ieee80211_mgmt *mgmt = NULL; | |
423 | struct ieee80211_channel *ibss_ch = NULL; | |
424 | s32 signal = 50 * 100; | |
425 | u8 ie_buf_len = 0; | |
426 | unsigned char ie_buf[256]; | |
427 | unsigned char *ptr_ie_buf = ie_buf; | |
428 | unsigned char *ieeemgmtbuf = NULL; | |
429 | u8 source_mac[ETH_ALEN]; | |
bdcd8170 KV |
430 | |
431 | /* capinfo + listen interval */ | |
432 | u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); | |
433 | ||
434 | /* capinfo + status code + associd */ | |
435 | u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); | |
436 | ||
437 | u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; | |
438 | u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + | |
439 | assoc_resp_ie_offset; | |
440 | ||
441 | assoc_req_len -= assoc_req_ie_offset; | |
442 | assoc_resp_len -= assoc_resp_ie_offset; | |
443 | ||
444 | ar->auto_auth_stage = AUTH_IDLE; | |
445 | ||
446 | if (nw_type & ADHOC_NETWORK) { | |
447 | if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { | |
448 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
449 | "%s: ath6k not in ibss mode\n", __func__); | |
450 | return; | |
451 | } | |
452 | } | |
453 | ||
454 | if (nw_type & INFRA_NETWORK) { | |
6b5e5d25 JM |
455 | if (ar->wdev->iftype != NL80211_IFTYPE_STATION && |
456 | ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) { | |
bdcd8170 KV |
457 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
458 | "%s: ath6k not in station mode\n", __func__); | |
459 | return; | |
460 | } | |
461 | } | |
462 | ||
bdcd8170 KV |
463 | /* |
464 | * Earlier we were updating the cfg about bss by making a beacon frame | |
465 | * only if the entry for bss is not there. This can have some issue if | |
466 | * ROAM event is generated and a heavy traffic is ongoing. The ROAM | |
467 | * event is handled through a work queue and by the time it really gets | |
468 | * handled, BSS would have been aged out. So it is better to update the | |
469 | * cfg about BSS irrespective of its entry being present right now or | |
470 | * not. | |
471 | */ | |
472 | ||
473 | if (nw_type & ADHOC_NETWORK) { | |
474 | /* construct 802.11 mgmt beacon */ | |
475 | if (ptr_ie_buf) { | |
476 | *ptr_ie_buf++ = WLAN_EID_SSID; | |
477 | *ptr_ie_buf++ = ar->ssid_len; | |
478 | memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len); | |
479 | ptr_ie_buf += ar->ssid_len; | |
480 | ||
481 | *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS; | |
482 | *ptr_ie_buf++ = 2; /* length */ | |
483 | *ptr_ie_buf++ = 0; /* ATIM window */ | |
484 | *ptr_ie_buf++ = 0; /* ATIM window */ | |
485 | ||
486 | /* TODO: update ibss params and include supported rates, | |
487 | * DS param set, extened support rates, wmm. */ | |
488 | ||
489 | ie_buf_len = ptr_ie_buf - ie_buf; | |
490 | } | |
491 | ||
492 | capability |= WLAN_CAPABILITY_IBSS; | |
493 | ||
494 | if (ar->prwise_crypto == WEP_CRYPT) | |
495 | capability |= WLAN_CAPABILITY_PRIVACY; | |
496 | ||
497 | memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN); | |
498 | ptr_ie_buf = ie_buf; | |
499 | } else { | |
500 | capability = *(u16 *) (&assoc_info[beacon_ie_len]); | |
501 | memcpy(source_mac, bssid, ETH_ALEN); | |
502 | ptr_ie_buf = assoc_req_ie; | |
503 | ie_buf_len = assoc_req_len; | |
504 | } | |
505 | ||
506 | size = offsetof(struct ieee80211_mgmt, u) | |
507 | + sizeof(mgmt->u.beacon) | |
508 | + ie_buf_len; | |
509 | ||
510 | ieeemgmtbuf = kzalloc(size, GFP_ATOMIC); | |
511 | if (!ieeemgmtbuf) { | |
512 | ath6kl_err("ieee mgmt buf alloc error\n"); | |
bdcd8170 KV |
513 | return; |
514 | } | |
515 | ||
516 | mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf; | |
517 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
518 | IEEE80211_STYPE_BEACON); | |
519 | memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */ | |
520 | memcpy(mgmt->sa, source_mac, ETH_ALEN); | |
521 | memcpy(mgmt->bssid, bssid, ETH_ALEN); | |
522 | mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl); | |
523 | mgmt->u.beacon.capab_info = cpu_to_le16(capability); | |
524 | memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len); | |
525 | ||
526 | ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel); | |
527 | ||
528 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
529 | "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n", | |
530 | __func__, mgmt->bssid, ibss_ch->hw_value, | |
531 | beacon_intvl, capability); | |
532 | ||
533 | bss = cfg80211_inform_bss_frame(ar->wdev->wiphy, | |
534 | ibss_ch, mgmt, | |
535 | size, signal, GFP_KERNEL); | |
536 | kfree(ieeemgmtbuf); | |
537 | cfg80211_put_bss(bss); | |
538 | ||
539 | if (nw_type & ADHOC_NETWORK) { | |
540 | cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); | |
541 | return; | |
542 | } | |
543 | ||
9aa60357 | 544 | if (ar->sme_state == SME_CONNECTING) { |
bdcd8170 | 545 | /* inform connect result to cfg80211 */ |
9aa60357 | 546 | ar->sme_state = SME_CONNECTED; |
bdcd8170 KV |
547 | cfg80211_connect_result(ar->net_dev, bssid, |
548 | assoc_req_ie, assoc_req_len, | |
549 | assoc_resp_ie, assoc_resp_len, | |
550 | WLAN_STATUS_SUCCESS, GFP_KERNEL); | |
9aa60357 | 551 | } else if (ar->sme_state == SME_CONNECTED) { |
bdcd8170 KV |
552 | /* inform roam event to cfg80211 */ |
553 | cfg80211_roamed(ar->net_dev, ibss_ch, bssid, | |
554 | assoc_req_ie, assoc_req_len, | |
555 | assoc_resp_ie, assoc_resp_len, GFP_KERNEL); | |
556 | } | |
557 | } | |
558 | ||
559 | static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, | |
560 | struct net_device *dev, u16 reason_code) | |
561 | { | |
562 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); | |
563 | ||
564 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, | |
565 | reason_code); | |
566 | ||
567 | if (!ath6kl_cfg80211_ready(ar)) | |
568 | return -EIO; | |
569 | ||
570 | if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { | |
571 | ath6kl_err("busy, destroy in progress\n"); | |
572 | return -EBUSY; | |
573 | } | |
574 | ||
575 | if (down_interruptible(&ar->sem)) { | |
576 | ath6kl_err("busy, couldn't get access\n"); | |
577 | return -ERESTARTSYS; | |
578 | } | |
579 | ||
580 | ar->reconnect_flag = 0; | |
581 | ath6kl_disconnect(ar); | |
582 | memset(ar->ssid, 0, sizeof(ar->ssid)); | |
583 | ar->ssid_len = 0; | |
584 | ||
585 | if (!test_bit(SKIP_SCAN, &ar->flag)) | |
586 | memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); | |
587 | ||
588 | up(&ar->sem); | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, | |
594 | u8 *bssid, u8 assoc_resp_len, | |
595 | u8 *assoc_info, u16 proto_reason) | |
596 | { | |
597 | struct ath6kl_key *key = NULL; | |
598 | u16 status; | |
599 | ||
600 | if (ar->scan_req) { | |
601 | cfg80211_scan_done(ar->scan_req, true); | |
602 | ar->scan_req = NULL; | |
603 | } | |
604 | ||
605 | if (ar->nw_type & ADHOC_NETWORK) { | |
606 | if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { | |
607 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
608 | "%s: ath6k not in ibss mode\n", __func__); | |
609 | return; | |
610 | } | |
611 | memset(bssid, 0, ETH_ALEN); | |
612 | cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); | |
613 | return; | |
614 | } | |
615 | ||
616 | if (ar->nw_type & INFRA_NETWORK) { | |
6b5e5d25 JM |
617 | if (ar->wdev->iftype != NL80211_IFTYPE_STATION && |
618 | ar->wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) { | |
bdcd8170 KV |
619 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
620 | "%s: ath6k not in station mode\n", __func__); | |
621 | return; | |
622 | } | |
623 | } | |
624 | ||
625 | if (!test_bit(CONNECT_PEND, &ar->flag)) { | |
626 | if (reason != DISCONNECT_CMD) | |
627 | ath6kl_wmi_disconnect_cmd(ar->wmi); | |
628 | ||
629 | return; | |
630 | } | |
631 | ||
632 | if (reason == NO_NETWORK_AVAIL) { | |
633 | /* connect cmd failed */ | |
634 | ath6kl_wmi_disconnect_cmd(ar->wmi); | |
635 | return; | |
636 | } | |
637 | ||
638 | if (reason != DISCONNECT_CMD) | |
639 | return; | |
640 | ||
641 | if (!ar->auto_auth_stage) { | |
642 | clear_bit(CONNECT_PEND, &ar->flag); | |
643 | ||
644 | if (ar->sme_state == SME_CONNECTING) { | |
645 | cfg80211_connect_result(ar->net_dev, | |
646 | bssid, NULL, 0, | |
647 | NULL, 0, | |
648 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
649 | GFP_KERNEL); | |
0e5cc8e6 | 650 | } else if (ar->sme_state == SME_CONNECTED) { |
bdcd8170 KV |
651 | cfg80211_disconnected(ar->net_dev, reason, |
652 | NULL, 0, GFP_KERNEL); | |
653 | } | |
654 | ||
655 | ar->sme_state = SME_DISCONNECTED; | |
656 | return; | |
657 | } | |
658 | ||
659 | if (ar->dot11_auth_mode != OPEN_AUTH) | |
660 | return; | |
661 | ||
662 | /* | |
663 | * If the current auth algorithm is open, try shared and | |
664 | * make autoAuthStage idle. We do not make it leap for now | |
665 | * being. | |
666 | */ | |
667 | key = &ar->keys[ar->def_txkey_index]; | |
668 | if (down_interruptible(&ar->sem)) { | |
669 | ath6kl_err("busy, couldn't get access\n"); | |
670 | return; | |
671 | } | |
672 | ||
673 | ar->dot11_auth_mode = SHARED_AUTH; | |
674 | ar->auto_auth_stage = AUTH_IDLE; | |
675 | ||
676 | ath6kl_wmi_addkey_cmd(ar->wmi, | |
677 | ar->def_txkey_index, | |
678 | ar->prwise_crypto, | |
679 | GROUP_USAGE | TX_USAGE, | |
680 | key->key_len, NULL, | |
681 | key->key, | |
682 | KEY_OP_INIT_VAL, NULL, | |
683 | NO_SYNC_WMIFLAG); | |
684 | ||
685 | status = ath6kl_wmi_connect_cmd(ar->wmi, | |
686 | ar->nw_type, | |
687 | ar->dot11_auth_mode, | |
688 | ar->auth_mode, | |
689 | ar->prwise_crypto, | |
690 | ar->prwise_crypto_len, | |
691 | ar->grp_crypto, | |
38acde3c | 692 | ar->grp_crypto_len, |
bdcd8170 KV |
693 | ar->ssid_len, |
694 | ar->ssid, | |
695 | ar->req_bssid, | |
696 | ar->ch_hint, | |
697 | ar->connect_ctrl_flags); | |
698 | up(&ar->sem); | |
699 | } | |
700 | ||
701 | static inline bool is_ch_11a(u16 ch) | |
702 | { | |
703 | return (!((ch >= 2412) && (ch <= 2484))); | |
704 | } | |
705 | ||
cf104c2a | 706 | /* struct ath6kl_node_table::nt_nodelock is locked when calling this */ |
91db35da | 707 | void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni) |
bdcd8170 | 708 | { |
bdcd8170 KV |
709 | struct ieee80211_mgmt *mgmt; |
710 | struct ieee80211_channel *channel; | |
711 | struct ieee80211_supported_band *band; | |
712 | struct ath6kl_common_ie *cie; | |
713 | s32 signal; | |
714 | int freq; | |
715 | ||
716 | cie = &ni->ni_cie; | |
717 | ||
718 | if (is_ch_11a(cie->ie_chan)) | |
719 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */ | |
720 | else if ((cie->ie_erp) || (cie->ie_xrates)) | |
721 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */ | |
722 | else | |
723 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */ | |
724 | ||
bdcd8170 KV |
725 | freq = cie->ie_chan; |
726 | channel = ieee80211_get_channel(wiphy, freq); | |
727 | signal = ni->ni_snr * 100; | |
728 | ||
729 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
730 | "%s: bssid %pM ch %d freq %d size %d\n", __func__, | |
0ce77920 JM |
731 | ni->ni_macaddr, channel->hw_value, freq, ni->ni_framelen); |
732 | /* | |
733 | * Both Beacon and Probe Response frames have same payload structure, | |
734 | * so it is fine to share the parser for both. | |
735 | */ | |
736 | if (ni->ni_framelen < 8 + 2 + 2) | |
737 | return; | |
738 | mgmt = (struct ieee80211_mgmt *) (ni->ni_buf - | |
739 | offsetof(struct ieee80211_mgmt, u)); | |
740 | cfg80211_inform_bss(wiphy, channel, ni->ni_macaddr, | |
741 | le64_to_cpu(mgmt->u.beacon.timestamp), | |
742 | le16_to_cpu(mgmt->u.beacon.capab_info), | |
743 | le16_to_cpu(mgmt->u.beacon.beacon_int), | |
744 | mgmt->u.beacon.variable, | |
745 | ni->ni_buf + ni->ni_framelen - | |
746 | mgmt->u.beacon.variable, | |
747 | signal, GFP_ATOMIC); | |
bdcd8170 KV |
748 | } |
749 | ||
750 | static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, | |
751 | struct cfg80211_scan_request *request) | |
752 | { | |
753 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); | |
1276c9ef EL |
754 | s8 n_channels = 0; |
755 | u16 *channels = NULL; | |
bdcd8170 | 756 | int ret = 0; |
bdcd8170 KV |
757 | |
758 | if (!ath6kl_cfg80211_ready(ar)) | |
759 | return -EIO; | |
760 | ||
761 | if (!ar->usr_bss_filter) { | |
762 | if (ath6kl_wmi_bssfilter_cmd(ar->wmi, | |
763 | (test_bit(CONNECTED, &ar->flag) ? | |
764 | ALL_BUT_BSS_FILTER : | |
765 | ALL_BSS_FILTER), 0) != 0) { | |
766 | ath6kl_err("couldn't set bss filtering\n"); | |
767 | return -EIO; | |
768 | } | |
769 | } | |
770 | ||
771 | if (request->n_ssids && request->ssids[0].ssid_len) { | |
772 | u8 i; | |
773 | ||
774 | if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1)) | |
775 | request->n_ssids = MAX_PROBED_SSID_INDEX - 1; | |
776 | ||
777 | for (i = 0; i < request->n_ssids; i++) | |
778 | ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, | |
779 | SPECIFIC_SSID_FLAG, | |
780 | request->ssids[i].ssid_len, | |
781 | request->ssids[i].ssid); | |
782 | } | |
783 | ||
b84da8c7 JM |
784 | if (request->ie) { |
785 | ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_REQ, | |
786 | request->ie, request->ie_len); | |
787 | if (ret) { | |
788 | ath6kl_err("failed to set Probe Request appie for " | |
789 | "scan"); | |
790 | return ret; | |
791 | } | |
792 | } | |
793 | ||
1276c9ef EL |
794 | if (request->n_channels > 0) { |
795 | u8 i; | |
796 | ||
797 | n_channels = min(127U, request->n_channels); | |
798 | ||
799 | channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); | |
800 | if (channels == NULL) { | |
801 | ath6kl_warn("failed to set scan channels, " | |
802 | "scan all channels"); | |
803 | n_channels = 0; | |
804 | } | |
805 | ||
806 | for (i = 0; i < n_channels; i++) | |
807 | channels[i] = request->channels[i]->center_freq; | |
808 | } | |
809 | ||
b2c76bbe | 810 | if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0, |
1276c9ef | 811 | false, 0, 0, n_channels, channels) != 0) { |
bdcd8170 KV |
812 | ath6kl_err("wmi_startscan_cmd failed\n"); |
813 | ret = -EIO; | |
814 | } | |
815 | ||
816 | ar->scan_req = request; | |
817 | ||
1276c9ef EL |
818 | kfree(channels); |
819 | ||
bdcd8170 KV |
820 | return ret; |
821 | } | |
822 | ||
823 | void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status) | |
824 | { | |
6fd1eace | 825 | int i; |
bdcd8170 KV |
826 | |
827 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status); | |
828 | ||
6fd1eace KV |
829 | if (!ar->scan_req) |
830 | return; | |
831 | ||
832 | if ((status == -ECANCELED) || (status == -EBUSY)) { | |
833 | cfg80211_scan_done(ar->scan_req, true); | |
834 | goto out; | |
835 | } | |
836 | ||
837 | /* Translate data to cfg80211 mgmt format */ | |
8a8bc5a4 | 838 | wlan_iterate_nodes(&ar->scan_table, ar->wdev->wiphy); |
6fd1eace KV |
839 | |
840 | cfg80211_scan_done(ar->scan_req, false); | |
841 | ||
842 | if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) { | |
843 | for (i = 0; i < ar->scan_req->n_ssids; i++) { | |
844 | ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, | |
845 | DISABLE_SSID_FLAG, | |
846 | 0, NULL); | |
bdcd8170 | 847 | } |
bdcd8170 | 848 | } |
6fd1eace KV |
849 | |
850 | out: | |
851 | ar->scan_req = NULL; | |
bdcd8170 KV |
852 | } |
853 | ||
854 | static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, | |
855 | u8 key_index, bool pairwise, | |
856 | const u8 *mac_addr, | |
857 | struct key_params *params) | |
858 | { | |
859 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); | |
860 | struct ath6kl_key *key = NULL; | |
861 | u8 key_usage; | |
862 | u8 key_type; | |
863 | int status = 0; | |
864 | ||
865 | if (!ath6kl_cfg80211_ready(ar)) | |
866 | return -EIO; | |
867 | ||
868 | if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { | |
869 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
870 | "%s: key index %d out of bounds\n", __func__, | |
871 | key_index); | |
872 | return -ENOENT; | |
873 | } | |
874 | ||
875 | key = &ar->keys[key_index]; | |
876 | memset(key, 0, sizeof(struct ath6kl_key)); | |
877 | ||
878 | if (pairwise) | |
879 | key_usage = PAIRWISE_USAGE; | |
880 | else | |
881 | key_usage = GROUP_USAGE; | |
882 | ||
883 | if (params) { | |
884 | if (params->key_len > WLAN_MAX_KEY_LEN || | |
885 | params->seq_len > sizeof(key->seq)) | |
886 | return -EINVAL; | |
887 | ||
888 | key->key_len = params->key_len; | |
889 | memcpy(key->key, params->key, key->key_len); | |
890 | key->seq_len = params->seq_len; | |
891 | memcpy(key->seq, params->seq, key->seq_len); | |
892 | key->cipher = params->cipher; | |
893 | } | |
894 | ||
895 | switch (key->cipher) { | |
896 | case WLAN_CIPHER_SUITE_WEP40: | |
897 | case WLAN_CIPHER_SUITE_WEP104: | |
898 | key_type = WEP_CRYPT; | |
899 | break; | |
900 | ||
901 | case WLAN_CIPHER_SUITE_TKIP: | |
902 | key_type = TKIP_CRYPT; | |
903 | break; | |
904 | ||
905 | case WLAN_CIPHER_SUITE_CCMP: | |
906 | key_type = AES_CRYPT; | |
907 | break; | |
908 | ||
909 | default: | |
910 | return -ENOTSUPP; | |
911 | } | |
912 | ||
913 | if (((ar->auth_mode == WPA_PSK_AUTH) | |
914 | || (ar->auth_mode == WPA2_PSK_AUTH)) | |
915 | && (key_usage & GROUP_USAGE)) | |
916 | del_timer(&ar->disconnect_timer); | |
917 | ||
918 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
919 | "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", | |
920 | __func__, key_index, key->key_len, key_type, | |
921 | key_usage, key->seq_len); | |
922 | ||
923 | ar->def_txkey_index = key_index; | |
9a5b1318 JM |
924 | |
925 | if (ar->nw_type == AP_NETWORK && !pairwise && | |
926 | (key_type == TKIP_CRYPT || key_type == AES_CRYPT) && params) { | |
927 | ar->ap_mode_bkey.valid = true; | |
928 | ar->ap_mode_bkey.key_index = key_index; | |
929 | ar->ap_mode_bkey.key_type = key_type; | |
930 | ar->ap_mode_bkey.key_len = key->key_len; | |
931 | memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); | |
932 | if (!test_bit(CONNECTED, &ar->flag)) { | |
933 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group " | |
934 | "key configuration until AP mode has been " | |
935 | "started\n"); | |
936 | /* | |
937 | * The key will be set in ath6kl_connect_ap_mode() once | |
938 | * the connected event is received from the target. | |
939 | */ | |
940 | return 0; | |
941 | } | |
942 | } | |
943 | ||
bdcd8170 KV |
944 | status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, |
945 | key_type, key_usage, key->key_len, | |
946 | key->seq, key->key, KEY_OP_INIT_VAL, | |
947 | (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); | |
948 | ||
949 | if (status) | |
950 | return -EIO; | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
955 | static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, | |
956 | u8 key_index, bool pairwise, | |
957 | const u8 *mac_addr) | |
958 | { | |
959 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); | |
960 | ||
961 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); | |
962 | ||
963 | if (!ath6kl_cfg80211_ready(ar)) | |
964 | return -EIO; | |
965 | ||
966 | if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { | |
967 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
968 | "%s: key index %d out of bounds\n", __func__, | |
969 | key_index); | |
970 | return -ENOENT; | |
971 | } | |
972 | ||
973 | if (!ar->keys[key_index].key_len) { | |
974 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
975 | "%s: index %d is empty\n", __func__, key_index); | |
976 | return 0; | |
977 | } | |
978 | ||
979 | ar->keys[key_index].key_len = 0; | |
980 | ||
981 | return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index); | |
982 | } | |
983 | ||
984 | static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, | |
985 | u8 key_index, bool pairwise, | |
986 | const u8 *mac_addr, void *cookie, | |
987 | void (*callback) (void *cookie, | |
988 | struct key_params *)) | |
989 | { | |
990 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); | |
991 | struct ath6kl_key *key = NULL; | |
992 | struct key_params params; | |
993 | ||
994 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); | |
995 | ||
996 | if (!ath6kl_cfg80211_ready(ar)) | |
997 | return -EIO; | |
998 | ||
999 | if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { | |
1000 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
1001 | "%s: key index %d out of bounds\n", __func__, | |
1002 | key_index); | |
1003 | return -ENOENT; | |
1004 | } | |
1005 | ||
1006 | key = &ar->keys[key_index]; | |
1007 | memset(¶ms, 0, sizeof(params)); | |
1008 | params.cipher = key->cipher; | |
1009 | params.key_len = key->key_len; | |
1010 | params.seq_len = key->seq_len; | |
1011 | params.seq = key->seq; | |
1012 | params.key = key->key; | |
1013 | ||
1014 | callback(cookie, ¶ms); | |
1015 | ||
1016 | return key->key_len ? 0 : -ENOENT; | |
1017 | } | |
1018 | ||
1019 | static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, | |
1020 | struct net_device *ndev, | |
1021 | u8 key_index, bool unicast, | |
1022 | bool multicast) | |
1023 | { | |
1024 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); | |
1025 | struct ath6kl_key *key = NULL; | |
1026 | int status = 0; | |
1027 | u8 key_usage; | |
229ed6b5 | 1028 | enum crypto_type key_type = NONE_CRYPT; |
bdcd8170 KV |
1029 | |
1030 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); | |
1031 | ||
1032 | if (!ath6kl_cfg80211_ready(ar)) | |
1033 | return -EIO; | |
1034 | ||
1035 | if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { | |
1036 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
1037 | "%s: key index %d out of bounds\n", | |
1038 | __func__, key_index); | |
1039 | return -ENOENT; | |
1040 | } | |
1041 | ||
1042 | if (!ar->keys[key_index].key_len) { | |
1043 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", | |
1044 | __func__, key_index); | |
1045 | return -EINVAL; | |
1046 | } | |
1047 | ||
1048 | ar->def_txkey_index = key_index; | |
1049 | key = &ar->keys[ar->def_txkey_index]; | |
1050 | key_usage = GROUP_USAGE; | |
1051 | if (ar->prwise_crypto == WEP_CRYPT) | |
1052 | key_usage |= TX_USAGE; | |
229ed6b5 EL |
1053 | if (unicast) |
1054 | key_type = ar->prwise_crypto; | |
1055 | if (multicast) | |
1056 | key_type = ar->grp_crypto; | |
bdcd8170 | 1057 | |
9a5b1318 JM |
1058 | if (ar->nw_type == AP_NETWORK && !test_bit(CONNECTED, &ar->flag)) |
1059 | return 0; /* Delay until AP mode has been started */ | |
1060 | ||
bdcd8170 | 1061 | status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, |
229ed6b5 | 1062 | key_type, key_usage, |
bdcd8170 KV |
1063 | key->key_len, key->seq, key->key, |
1064 | KEY_OP_INIT_VAL, NULL, | |
1065 | SYNC_BOTH_WMIFLAG); | |
1066 | if (status) | |
1067 | return -EIO; | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, | |
1073 | bool ismcast) | |
1074 | { | |
1075 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
1076 | "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); | |
1077 | ||
1078 | cfg80211_michael_mic_failure(ar->net_dev, ar->bssid, | |
1079 | (ismcast ? NL80211_KEYTYPE_GROUP : | |
1080 | NL80211_KEYTYPE_PAIRWISE), keyid, NULL, | |
1081 | GFP_KERNEL); | |
1082 | } | |
1083 | ||
1084 | static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
1085 | { | |
1086 | struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); | |
1087 | int ret; | |
1088 | ||
1089 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, | |
1090 | changed); | |
1091 | ||
1092 | if (!ath6kl_cfg80211_ready(ar)) | |
1093 | return -EIO; | |
1094 | ||
1095 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { | |
1096 | ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); | |
1097 | if (ret != 0) { | |
1098 | ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); | |
1099 | return -EIO; | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | /* | |
1107 | * The type nl80211_tx_power_setting replaces the following | |
1108 | * data type from 2.6.36 onwards | |
1109 | */ | |
1110 | static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, | |
1111 | enum nl80211_tx_power_setting type, | |
1112 | int dbm) | |
1113 | { | |
1114 | struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); | |
1115 | u8 ath6kl_dbm; | |
1116 | ||
1117 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, | |
1118 | type, dbm); | |
1119 | ||
1120 | if (!ath6kl_cfg80211_ready(ar)) | |
1121 | return -EIO; | |
1122 | ||
1123 | switch (type) { | |
1124 | case NL80211_TX_POWER_AUTOMATIC: | |
1125 | return 0; | |
1126 | case NL80211_TX_POWER_LIMITED: | |
1127 | ar->tx_pwr = ath6kl_dbm = dbm; | |
1128 | break; | |
1129 | default: | |
1130 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", | |
1131 | __func__, type); | |
1132 | return -EOPNOTSUPP; | |
1133 | } | |
1134 | ||
1135 | ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm); | |
1136 | ||
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) | |
1141 | { | |
1142 | struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); | |
1143 | ||
1144 | if (!ath6kl_cfg80211_ready(ar)) | |
1145 | return -EIO; | |
1146 | ||
1147 | if (test_bit(CONNECTED, &ar->flag)) { | |
1148 | ar->tx_pwr = 0; | |
1149 | ||
1150 | if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) { | |
1151 | ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); | |
1152 | return -EIO; | |
1153 | } | |
1154 | ||
1155 | wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, | |
1156 | 5 * HZ); | |
1157 | ||
1158 | if (signal_pending(current)) { | |
1159 | ath6kl_err("target did not respond\n"); | |
1160 | return -EINTR; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | *dbm = ar->tx_pwr; | |
1165 | return 0; | |
1166 | } | |
1167 | ||
1168 | static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, | |
1169 | struct net_device *dev, | |
1170 | bool pmgmt, int timeout) | |
1171 | { | |
1172 | struct ath6kl *ar = ath6kl_priv(dev); | |
1173 | struct wmi_power_mode_cmd mode; | |
1174 | ||
1175 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", | |
1176 | __func__, pmgmt, timeout); | |
1177 | ||
1178 | if (!ath6kl_cfg80211_ready(ar)) | |
1179 | return -EIO; | |
1180 | ||
1181 | if (pmgmt) { | |
1182 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); | |
1183 | mode.pwr_mode = REC_POWER; | |
1184 | } else { | |
1185 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); | |
1186 | mode.pwr_mode = MAX_PERF_POWER; | |
1187 | } | |
1188 | ||
1189 | if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) { | |
1190 | ath6kl_err("wmi_powermode_cmd failed\n"); | |
1191 | return -EIO; | |
1192 | } | |
1193 | ||
1194 | return 0; | |
1195 | } | |
1196 | ||
1197 | static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, | |
1198 | struct net_device *ndev, | |
1199 | enum nl80211_iftype type, u32 *flags, | |
1200 | struct vif_params *params) | |
1201 | { | |
1202 | struct ath6kl *ar = ath6kl_priv(ndev); | |
1203 | struct wireless_dev *wdev = ar->wdev; | |
1204 | ||
1205 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); | |
1206 | ||
1207 | if (!ath6kl_cfg80211_ready(ar)) | |
1208 | return -EIO; | |
1209 | ||
1210 | switch (type) { | |
1211 | case NL80211_IFTYPE_STATION: | |
1212 | ar->next_mode = INFRA_NETWORK; | |
1213 | break; | |
1214 | case NL80211_IFTYPE_ADHOC: | |
1215 | ar->next_mode = ADHOC_NETWORK; | |
1216 | break; | |
6b5e5d25 JM |
1217 | case NL80211_IFTYPE_P2P_CLIENT: |
1218 | ar->next_mode = INFRA_NETWORK; | |
1219 | break; | |
1220 | case NL80211_IFTYPE_P2P_GO: | |
1221 | ar->next_mode = AP_NETWORK; | |
1222 | break; | |
bdcd8170 KV |
1223 | default: |
1224 | ath6kl_err("invalid interface type %u\n", type); | |
1225 | return -EOPNOTSUPP; | |
1226 | } | |
1227 | ||
1228 | wdev->iftype = type; | |
1229 | ||
1230 | return 0; | |
1231 | } | |
1232 | ||
1233 | static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, | |
1234 | struct net_device *dev, | |
1235 | struct cfg80211_ibss_params *ibss_param) | |
1236 | { | |
1237 | struct ath6kl *ar = ath6kl_priv(dev); | |
1238 | int status; | |
1239 | ||
1240 | if (!ath6kl_cfg80211_ready(ar)) | |
1241 | return -EIO; | |
1242 | ||
1243 | ar->ssid_len = ibss_param->ssid_len; | |
1244 | memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len); | |
1245 | ||
1246 | if (ibss_param->channel) | |
1247 | ar->ch_hint = ibss_param->channel->center_freq; | |
1248 | ||
1249 | if (ibss_param->channel_fixed) { | |
1250 | /* | |
1251 | * TODO: channel_fixed: The channel should be fixed, do not | |
1252 | * search for IBSSs to join on other channels. Target | |
1253 | * firmware does not support this feature, needs to be | |
1254 | * updated. | |
1255 | */ | |
1256 | return -EOPNOTSUPP; | |
1257 | } | |
1258 | ||
1259 | memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); | |
1260 | if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) | |
1261 | memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid)); | |
1262 | ||
1263 | ath6kl_set_wpa_version(ar, 0); | |
1264 | ||
1265 | status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM); | |
1266 | if (status) | |
1267 | return status; | |
1268 | ||
1269 | if (ibss_param->privacy) { | |
1270 | ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true); | |
1271 | ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false); | |
1272 | } else { | |
1273 | ath6kl_set_cipher(ar, 0, true); | |
1274 | ath6kl_set_cipher(ar, 0, false); | |
1275 | } | |
1276 | ||
1277 | ar->nw_type = ar->next_mode; | |
1278 | ||
1279 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, | |
1280 | "%s: connect called with authmode %d dot11 auth %d" | |
1281 | " PW crypto %d PW crypto len %d GRP crypto %d" | |
1282 | " GRP crypto len %d channel hint %u\n", | |
1283 | __func__, | |
1284 | ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, | |
1285 | ar->prwise_crypto_len, ar->grp_crypto, | |
38acde3c | 1286 | ar->grp_crypto_len, ar->ch_hint); |
bdcd8170 KV |
1287 | |
1288 | status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, | |
1289 | ar->dot11_auth_mode, ar->auth_mode, | |
1290 | ar->prwise_crypto, | |
1291 | ar->prwise_crypto_len, | |
38acde3c | 1292 | ar->grp_crypto, ar->grp_crypto_len, |
bdcd8170 KV |
1293 | ar->ssid_len, ar->ssid, |
1294 | ar->req_bssid, ar->ch_hint, | |
1295 | ar->connect_ctrl_flags); | |
1296 | set_bit(CONNECT_PEND, &ar->flag); | |
1297 | ||
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, | |
1302 | struct net_device *dev) | |
1303 | { | |
1304 | struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); | |
1305 | ||
1306 | if (!ath6kl_cfg80211_ready(ar)) | |
1307 | return -EIO; | |
1308 | ||
1309 | ath6kl_disconnect(ar); | |
1310 | memset(ar->ssid, 0, sizeof(ar->ssid)); | |
1311 | ar->ssid_len = 0; | |
1312 | ||
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static const u32 cipher_suites[] = { | |
1317 | WLAN_CIPHER_SUITE_WEP40, | |
1318 | WLAN_CIPHER_SUITE_WEP104, | |
1319 | WLAN_CIPHER_SUITE_TKIP, | |
1320 | WLAN_CIPHER_SUITE_CCMP, | |
1321 | }; | |
1322 | ||
1323 | static bool is_rate_legacy(s32 rate) | |
1324 | { | |
1325 | static const s32 legacy[] = { 1000, 2000, 5500, 11000, | |
1326 | 6000, 9000, 12000, 18000, 24000, | |
1327 | 36000, 48000, 54000 | |
1328 | }; | |
1329 | u8 i; | |
1330 | ||
1331 | for (i = 0; i < ARRAY_SIZE(legacy); i++) | |
1332 | if (rate == legacy[i]) | |
1333 | return true; | |
1334 | ||
1335 | return false; | |
1336 | } | |
1337 | ||
1338 | static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) | |
1339 | { | |
1340 | static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, | |
1341 | 52000, 58500, 65000, 72200 | |
1342 | }; | |
1343 | u8 i; | |
1344 | ||
1345 | for (i = 0; i < ARRAY_SIZE(ht20); i++) { | |
1346 | if (rate == ht20[i]) { | |
1347 | if (i == ARRAY_SIZE(ht20) - 1) | |
1348 | /* last rate uses sgi */ | |
1349 | *sgi = true; | |
1350 | else | |
1351 | *sgi = false; | |
1352 | ||
1353 | *mcs = i; | |
1354 | return true; | |
1355 | } | |
1356 | } | |
1357 | return false; | |
1358 | } | |
1359 | ||
1360 | static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) | |
1361 | { | |
1362 | static const s32 ht40[] = { 13500, 27000, 40500, 54000, | |
1363 | 81000, 108000, 121500, 135000, | |
1364 | 150000 | |
1365 | }; | |
1366 | u8 i; | |
1367 | ||
1368 | for (i = 0; i < ARRAY_SIZE(ht40); i++) { | |
1369 | if (rate == ht40[i]) { | |
1370 | if (i == ARRAY_SIZE(ht40) - 1) | |
1371 | /* last rate uses sgi */ | |
1372 | *sgi = true; | |
1373 | else | |
1374 | *sgi = false; | |
1375 | ||
1376 | *mcs = i; | |
1377 | return true; | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | return false; | |
1382 | } | |
1383 | ||
1384 | static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, | |
1385 | u8 *mac, struct station_info *sinfo) | |
1386 | { | |
1387 | struct ath6kl *ar = ath6kl_priv(dev); | |
1388 | long left; | |
1389 | bool sgi; | |
1390 | s32 rate; | |
1391 | int ret; | |
1392 | u8 mcs; | |
1393 | ||
1394 | if (memcmp(mac, ar->bssid, ETH_ALEN) != 0) | |
1395 | return -ENOENT; | |
1396 | ||
1397 | if (down_interruptible(&ar->sem)) | |
1398 | return -EBUSY; | |
1399 | ||
1400 | set_bit(STATS_UPDATE_PEND, &ar->flag); | |
1401 | ||
1402 | ret = ath6kl_wmi_get_stats_cmd(ar->wmi); | |
1403 | ||
1404 | if (ret != 0) { | |
1405 | up(&ar->sem); | |
1406 | return -EIO; | |
1407 | } | |
1408 | ||
1409 | left = wait_event_interruptible_timeout(ar->event_wq, | |
1410 | !test_bit(STATS_UPDATE_PEND, | |
1411 | &ar->flag), | |
1412 | WMI_TIMEOUT); | |
1413 | ||
1414 | up(&ar->sem); | |
1415 | ||
1416 | if (left == 0) | |
1417 | return -ETIMEDOUT; | |
1418 | else if (left < 0) | |
1419 | return left; | |
1420 | ||
1421 | if (ar->target_stats.rx_byte) { | |
1422 | sinfo->rx_bytes = ar->target_stats.rx_byte; | |
1423 | sinfo->filled |= STATION_INFO_RX_BYTES; | |
1424 | sinfo->rx_packets = ar->target_stats.rx_pkt; | |
1425 | sinfo->filled |= STATION_INFO_RX_PACKETS; | |
1426 | } | |
1427 | ||
1428 | if (ar->target_stats.tx_byte) { | |
1429 | sinfo->tx_bytes = ar->target_stats.tx_byte; | |
1430 | sinfo->filled |= STATION_INFO_TX_BYTES; | |
1431 | sinfo->tx_packets = ar->target_stats.tx_pkt; | |
1432 | sinfo->filled |= STATION_INFO_TX_PACKETS; | |
1433 | } | |
1434 | ||
1435 | sinfo->signal = ar->target_stats.cs_rssi; | |
1436 | sinfo->filled |= STATION_INFO_SIGNAL; | |
1437 | ||
1438 | rate = ar->target_stats.tx_ucast_rate; | |
1439 | ||
1440 | if (is_rate_legacy(rate)) { | |
1441 | sinfo->txrate.legacy = rate / 100; | |
1442 | } else if (is_rate_ht20(rate, &mcs, &sgi)) { | |
1443 | if (sgi) { | |
1444 | sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
1445 | sinfo->txrate.mcs = mcs - 1; | |
1446 | } else { | |
1447 | sinfo->txrate.mcs = mcs; | |
1448 | } | |
1449 | ||
1450 | sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; | |
1451 | } else if (is_rate_ht40(rate, &mcs, &sgi)) { | |
1452 | if (sgi) { | |
1453 | sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
1454 | sinfo->txrate.mcs = mcs - 1; | |
1455 | } else { | |
1456 | sinfo->txrate.mcs = mcs; | |
1457 | } | |
1458 | ||
1459 | sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; | |
1460 | sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; | |
1461 | } else { | |
1462 | ath6kl_warn("invalid rate: %d\n", rate); | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | sinfo->filled |= STATION_INFO_TX_BITRATE; | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, | |
1472 | struct cfg80211_pmksa *pmksa) | |
1473 | { | |
1474 | struct ath6kl *ar = ath6kl_priv(netdev); | |
1475 | return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, | |
1476 | pmksa->pmkid, true); | |
1477 | } | |
1478 | ||
1479 | static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, | |
1480 | struct cfg80211_pmksa *pmksa) | |
1481 | { | |
1482 | struct ath6kl *ar = ath6kl_priv(netdev); | |
1483 | return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, | |
1484 | pmksa->pmkid, false); | |
1485 | } | |
1486 | ||
1487 | static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) | |
1488 | { | |
1489 | struct ath6kl *ar = ath6kl_priv(netdev); | |
1490 | if (test_bit(CONNECTED, &ar->flag)) | |
1491 | return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false); | |
1492 | return 0; | |
1493 | } | |
1494 | ||
abcb344b KV |
1495 | #ifdef CONFIG_PM |
1496 | static int ar6k_cfg80211_suspend(struct wiphy *wiphy, | |
1497 | struct cfg80211_wowlan *wow) | |
1498 | { | |
1499 | struct ath6kl *ar = wiphy_priv(wiphy); | |
1500 | ||
1501 | return ath6kl_hif_suspend(ar); | |
1502 | } | |
1503 | #endif | |
1504 | ||
6a7c9bad JM |
1505 | static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev, |
1506 | struct ieee80211_channel *chan, | |
1507 | enum nl80211_channel_type channel_type) | |
1508 | { | |
1509 | struct ath6kl *ar = ath6kl_priv(dev); | |
1510 | ||
1511 | if (!ath6kl_cfg80211_ready(ar)) | |
1512 | return -EIO; | |
1513 | ||
1514 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n", | |
1515 | __func__, chan->center_freq, chan->hw_value); | |
1516 | ar->next_chan = chan->center_freq; | |
1517 | ||
1518 | return 0; | |
1519 | } | |
1520 | ||
8bdfbf40 JM |
1521 | static bool ath6kl_is_p2p_ie(const u8 *pos) |
1522 | { | |
1523 | return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && | |
1524 | pos[2] == 0x50 && pos[3] == 0x6f && | |
1525 | pos[4] == 0x9a && pos[5] == 0x09; | |
1526 | } | |
1527 | ||
1528 | static int ath6kl_set_ap_probe_resp_ies(struct ath6kl *ar, const u8 *ies, | |
1529 | size_t ies_len) | |
1530 | { | |
1531 | const u8 *pos; | |
1532 | u8 *buf = NULL; | |
1533 | size_t len = 0; | |
1534 | int ret; | |
1535 | ||
1536 | /* | |
1537 | * Filter out P2P IE(s) since they will be included depending on | |
1538 | * the Probe Request frame in ath6kl_send_go_probe_resp(). | |
1539 | */ | |
1540 | ||
1541 | if (ies && ies_len) { | |
1542 | buf = kmalloc(ies_len, GFP_KERNEL); | |
1543 | if (buf == NULL) | |
1544 | return -ENOMEM; | |
1545 | pos = ies; | |
1546 | while (pos + 1 < ies + ies_len) { | |
1547 | if (pos + 2 + pos[1] > ies + ies_len) | |
1548 | break; | |
1549 | if (!ath6kl_is_p2p_ie(pos)) { | |
1550 | memcpy(buf + len, pos, 2 + pos[1]); | |
1551 | len += 2 + pos[1]; | |
1552 | } | |
1553 | pos += 2 + pos[1]; | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | ret = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_PROBE_RESP, | |
1558 | buf, len); | |
1559 | kfree(buf); | |
1560 | return ret; | |
1561 | } | |
1562 | ||
6a7c9bad JM |
1563 | static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev, |
1564 | struct beacon_parameters *info, bool add) | |
1565 | { | |
1566 | struct ath6kl *ar = ath6kl_priv(dev); | |
1567 | struct ieee80211_mgmt *mgmt; | |
1568 | u8 *ies; | |
1569 | int ies_len; | |
1570 | struct wmi_connect_cmd p; | |
1571 | int res; | |
1572 | int i; | |
1573 | ||
1574 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add); | |
1575 | ||
1576 | if (!ath6kl_cfg80211_ready(ar)) | |
1577 | return -EIO; | |
1578 | ||
1579 | if (ar->next_mode != AP_NETWORK) | |
1580 | return -EOPNOTSUPP; | |
1581 | ||
1582 | if (info->beacon_ies) { | |
1583 | res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_BEACON, | |
1584 | info->beacon_ies, | |
1585 | info->beacon_ies_len); | |
1586 | if (res) | |
1587 | return res; | |
1588 | } | |
1589 | if (info->proberesp_ies) { | |
8bdfbf40 JM |
1590 | res = ath6kl_set_ap_probe_resp_ies(ar, info->proberesp_ies, |
1591 | info->proberesp_ies_len); | |
6a7c9bad JM |
1592 | if (res) |
1593 | return res; | |
1594 | } | |
1595 | if (info->assocresp_ies) { | |
1596 | res = ath6kl_wmi_set_appie_cmd(ar->wmi, WMI_FRAME_ASSOC_RESP, | |
1597 | info->assocresp_ies, | |
1598 | info->assocresp_ies_len); | |
1599 | if (res) | |
1600 | return res; | |
1601 | } | |
1602 | ||
1603 | if (!add) | |
1604 | return 0; | |
1605 | ||
9a5b1318 JM |
1606 | ar->ap_mode_bkey.valid = false; |
1607 | ||
6a7c9bad JM |
1608 | /* TODO: |
1609 | * info->interval | |
1610 | * info->dtim_period | |
1611 | */ | |
1612 | ||
1613 | if (info->head == NULL) | |
1614 | return -EINVAL; | |
1615 | mgmt = (struct ieee80211_mgmt *) info->head; | |
1616 | ies = mgmt->u.beacon.variable; | |
1617 | if (ies > info->head + info->head_len) | |
1618 | return -EINVAL; | |
1619 | ies_len = info->head + info->head_len - ies; | |
1620 | ||
1621 | if (info->ssid == NULL) | |
1622 | return -EINVAL; | |
1623 | memcpy(ar->ssid, info->ssid, info->ssid_len); | |
1624 | ar->ssid_len = info->ssid_len; | |
1625 | if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) | |
1626 | return -EOPNOTSUPP; /* TODO */ | |
1627 | ||
1628 | ar->dot11_auth_mode = OPEN_AUTH; | |
1629 | ||
1630 | memset(&p, 0, sizeof(p)); | |
1631 | ||
1632 | for (i = 0; i < info->crypto.n_akm_suites; i++) { | |
1633 | switch (info->crypto.akm_suites[i]) { | |
1634 | case WLAN_AKM_SUITE_8021X: | |
1635 | if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) | |
1636 | p.auth_mode |= WPA_AUTH; | |
1637 | if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) | |
1638 | p.auth_mode |= WPA2_AUTH; | |
1639 | break; | |
1640 | case WLAN_AKM_SUITE_PSK: | |
1641 | if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) | |
1642 | p.auth_mode |= WPA_PSK_AUTH; | |
1643 | if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) | |
1644 | p.auth_mode |= WPA2_PSK_AUTH; | |
1645 | break; | |
1646 | } | |
1647 | } | |
1648 | if (p.auth_mode == 0) | |
1649 | p.auth_mode = NONE_AUTH; | |
1650 | ar->auth_mode = p.auth_mode; | |
1651 | ||
1652 | for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { | |
1653 | switch (info->crypto.ciphers_pairwise[i]) { | |
1654 | case WLAN_CIPHER_SUITE_WEP40: | |
1655 | case WLAN_CIPHER_SUITE_WEP104: | |
1656 | p.prwise_crypto_type |= WEP_CRYPT; | |
1657 | break; | |
1658 | case WLAN_CIPHER_SUITE_TKIP: | |
1659 | p.prwise_crypto_type |= TKIP_CRYPT; | |
1660 | break; | |
1661 | case WLAN_CIPHER_SUITE_CCMP: | |
1662 | p.prwise_crypto_type |= AES_CRYPT; | |
1663 | break; | |
1664 | } | |
1665 | } | |
229ed6b5 | 1666 | if (p.prwise_crypto_type == 0) { |
6a7c9bad | 1667 | p.prwise_crypto_type = NONE_CRYPT; |
229ed6b5 EL |
1668 | ath6kl_set_cipher(ar, 0, true); |
1669 | } else if (info->crypto.n_ciphers_pairwise == 1) | |
1670 | ath6kl_set_cipher(ar, info->crypto.ciphers_pairwise[0], true); | |
6a7c9bad JM |
1671 | |
1672 | switch (info->crypto.cipher_group) { | |
1673 | case WLAN_CIPHER_SUITE_WEP40: | |
1674 | case WLAN_CIPHER_SUITE_WEP104: | |
1675 | p.grp_crypto_type = WEP_CRYPT; | |
1676 | break; | |
1677 | case WLAN_CIPHER_SUITE_TKIP: | |
1678 | p.grp_crypto_type = TKIP_CRYPT; | |
1679 | break; | |
1680 | case WLAN_CIPHER_SUITE_CCMP: | |
1681 | p.grp_crypto_type = AES_CRYPT; | |
1682 | break; | |
1683 | default: | |
1684 | p.grp_crypto_type = NONE_CRYPT; | |
1685 | break; | |
1686 | } | |
229ed6b5 | 1687 | ath6kl_set_cipher(ar, info->crypto.cipher_group, false); |
6a7c9bad JM |
1688 | |
1689 | p.nw_type = AP_NETWORK; | |
1690 | ar->nw_type = ar->next_mode; | |
1691 | ||
1692 | p.ssid_len = ar->ssid_len; | |
1693 | memcpy(p.ssid, ar->ssid, ar->ssid_len); | |
1694 | p.dot11_auth_mode = ar->dot11_auth_mode; | |
1695 | p.ch = cpu_to_le16(ar->next_chan); | |
1696 | ||
9a5b1318 JM |
1697 | res = ath6kl_wmi_ap_profile_commit(ar->wmi, &p); |
1698 | if (res < 0) | |
1699 | return res; | |
1700 | ||
1701 | return 0; | |
6a7c9bad JM |
1702 | } |
1703 | ||
1704 | static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev, | |
1705 | struct beacon_parameters *info) | |
1706 | { | |
1707 | return ath6kl_ap_beacon(wiphy, dev, info, true); | |
1708 | } | |
1709 | ||
1710 | static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev, | |
1711 | struct beacon_parameters *info) | |
1712 | { | |
1713 | return ath6kl_ap_beacon(wiphy, dev, info, false); | |
1714 | } | |
1715 | ||
1716 | static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev) | |
1717 | { | |
1718 | struct ath6kl *ar = ath6kl_priv(dev); | |
1719 | ||
1720 | if (ar->nw_type != AP_NETWORK) | |
1721 | return -EOPNOTSUPP; | |
1722 | if (!test_bit(CONNECTED, &ar->flag)) | |
1723 | return -ENOTCONN; | |
1724 | ||
1725 | ath6kl_wmi_disconnect_cmd(ar->wmi); | |
1726 | clear_bit(CONNECTED, &ar->flag); | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
23875136 JM |
1731 | static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, |
1732 | u8 *mac, struct station_parameters *params) | |
1733 | { | |
1734 | struct ath6kl *ar = ath6kl_priv(dev); | |
1735 | ||
1736 | if (ar->nw_type != AP_NETWORK) | |
1737 | return -EOPNOTSUPP; | |
1738 | ||
1739 | /* Use this only for authorizing/unauthorizing a station */ | |
1740 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
1741 | return -EOPNOTSUPP; | |
1742 | ||
1743 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1744 | return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_AUTHORIZE, | |
1745 | mac, 0); | |
1746 | return ath6kl_wmi_ap_set_mlme(ar->wmi, WMI_AP_MLME_UNAUTHORIZE, mac, | |
1747 | 0); | |
1748 | } | |
1749 | ||
63fa1e0c JM |
1750 | static int ath6kl_remain_on_channel(struct wiphy *wiphy, |
1751 | struct net_device *dev, | |
1752 | struct ieee80211_channel *chan, | |
1753 | enum nl80211_channel_type channel_type, | |
1754 | unsigned int duration, | |
1755 | u64 *cookie) | |
1756 | { | |
1757 | struct ath6kl *ar = ath6kl_priv(dev); | |
1758 | ||
1759 | /* TODO: if already pending or ongoing remain-on-channel, | |
1760 | * return -EBUSY */ | |
1761 | *cookie = 1; /* only a single pending request is supported */ | |
1762 | ||
1763 | return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, chan->center_freq, | |
1764 | duration); | |
1765 | } | |
1766 | ||
1767 | static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, | |
1768 | struct net_device *dev, | |
1769 | u64 cookie) | |
1770 | { | |
1771 | struct ath6kl *ar = ath6kl_priv(dev); | |
1772 | ||
1773 | if (cookie != 1) | |
1774 | return -ENOENT; | |
1775 | ||
1776 | return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi); | |
1777 | } | |
1778 | ||
8bdfbf40 JM |
1779 | static int ath6kl_send_go_probe_resp(struct ath6kl *ar, const u8 *buf, |
1780 | size_t len, unsigned int freq) | |
1781 | { | |
1782 | const u8 *pos; | |
1783 | u8 *p2p; | |
1784 | int p2p_len; | |
1785 | int ret; | |
1786 | const struct ieee80211_mgmt *mgmt; | |
1787 | ||
1788 | mgmt = (const struct ieee80211_mgmt *) buf; | |
1789 | ||
1790 | /* Include P2P IE(s) from the frame generated in user space. */ | |
1791 | ||
1792 | p2p = kmalloc(len, GFP_KERNEL); | |
1793 | if (p2p == NULL) | |
1794 | return -ENOMEM; | |
1795 | p2p_len = 0; | |
1796 | ||
1797 | pos = mgmt->u.probe_resp.variable; | |
1798 | while (pos + 1 < buf + len) { | |
1799 | if (pos + 2 + pos[1] > buf + len) | |
1800 | break; | |
1801 | if (ath6kl_is_p2p_ie(pos)) { | |
1802 | memcpy(p2p + p2p_len, pos, 2 + pos[1]); | |
1803 | p2p_len += 2 + pos[1]; | |
1804 | } | |
1805 | pos += 2 + pos[1]; | |
1806 | } | |
1807 | ||
1808 | ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, freq, mgmt->da, | |
1809 | p2p, p2p_len); | |
1810 | kfree(p2p); | |
1811 | return ret; | |
1812 | } | |
1813 | ||
8a6c8060 JM |
1814 | static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, |
1815 | struct ieee80211_channel *chan, bool offchan, | |
1816 | enum nl80211_channel_type channel_type, | |
1817 | bool channel_type_valid, unsigned int wait, | |
1818 | const u8 *buf, size_t len, u64 *cookie) | |
1819 | { | |
1820 | struct ath6kl *ar = ath6kl_priv(dev); | |
1821 | u32 id; | |
8bdfbf40 JM |
1822 | const struct ieee80211_mgmt *mgmt; |
1823 | ||
1824 | mgmt = (const struct ieee80211_mgmt *) buf; | |
1825 | if (buf + len >= mgmt->u.probe_resp.variable && | |
1826 | ar->nw_type == AP_NETWORK && test_bit(CONNECTED, &ar->flag) && | |
1827 | ieee80211_is_probe_resp(mgmt->frame_control)) { | |
1828 | /* | |
1829 | * Send Probe Response frame in AP mode using a separate WMI | |
1830 | * command to allow the target to fill in the generic IEs. | |
1831 | */ | |
1832 | *cookie = 0; /* TX status not supported */ | |
1833 | return ath6kl_send_go_probe_resp(ar, buf, len, | |
1834 | chan->center_freq); | |
1835 | } | |
8a6c8060 JM |
1836 | |
1837 | id = ar->send_action_id++; | |
1838 | if (id == 0) { | |
1839 | /* | |
1840 | * 0 is a reserved value in the WMI command and shall not be | |
1841 | * used for the command. | |
1842 | */ | |
1843 | id = ar->send_action_id++; | |
1844 | } | |
1845 | ||
1846 | *cookie = id; | |
1847 | return ath6kl_wmi_send_action_cmd(ar->wmi, id, chan->center_freq, wait, | |
1848 | buf, len); | |
1849 | } | |
1850 | ||
ae32c30a JM |
1851 | static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, |
1852 | struct net_device *dev, | |
1853 | u16 frame_type, bool reg) | |
1854 | { | |
1855 | struct ath6kl *ar = ath6kl_priv(dev); | |
1856 | ||
1857 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", | |
1858 | __func__, frame_type, reg); | |
1859 | if (frame_type == IEEE80211_STYPE_PROBE_REQ) { | |
1860 | /* | |
1861 | * Note: This notification callback is not allowed to sleep, so | |
1862 | * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we | |
1863 | * hardcode target to report Probe Request frames all the time. | |
1864 | */ | |
1865 | ar->probe_req_report = reg; | |
1866 | } | |
1867 | } | |
1868 | ||
f80574ae JM |
1869 | static const struct ieee80211_txrx_stypes |
1870 | ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
1871 | [NL80211_IFTYPE_STATION] = { | |
1872 | .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1873 | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), | |
1874 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1875 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
1876 | }, | |
1877 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
1878 | .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1879 | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), | |
1880 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1881 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
1882 | }, | |
1883 | [NL80211_IFTYPE_P2P_GO] = { | |
1884 | .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1885 | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), | |
1886 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
1887 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
1888 | }, | |
1889 | }; | |
1890 | ||
bdcd8170 KV |
1891 | static struct cfg80211_ops ath6kl_cfg80211_ops = { |
1892 | .change_virtual_intf = ath6kl_cfg80211_change_iface, | |
1893 | .scan = ath6kl_cfg80211_scan, | |
1894 | .connect = ath6kl_cfg80211_connect, | |
1895 | .disconnect = ath6kl_cfg80211_disconnect, | |
1896 | .add_key = ath6kl_cfg80211_add_key, | |
1897 | .get_key = ath6kl_cfg80211_get_key, | |
1898 | .del_key = ath6kl_cfg80211_del_key, | |
1899 | .set_default_key = ath6kl_cfg80211_set_default_key, | |
1900 | .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, | |
1901 | .set_tx_power = ath6kl_cfg80211_set_txpower, | |
1902 | .get_tx_power = ath6kl_cfg80211_get_txpower, | |
1903 | .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, | |
1904 | .join_ibss = ath6kl_cfg80211_join_ibss, | |
1905 | .leave_ibss = ath6kl_cfg80211_leave_ibss, | |
1906 | .get_station = ath6kl_get_station, | |
1907 | .set_pmksa = ath6kl_set_pmksa, | |
1908 | .del_pmksa = ath6kl_del_pmksa, | |
1909 | .flush_pmksa = ath6kl_flush_pmksa, | |
abcb344b KV |
1910 | #ifdef CONFIG_PM |
1911 | .suspend = ar6k_cfg80211_suspend, | |
1912 | #endif | |
6a7c9bad JM |
1913 | .set_channel = ath6kl_set_channel, |
1914 | .add_beacon = ath6kl_add_beacon, | |
1915 | .set_beacon = ath6kl_set_beacon, | |
1916 | .del_beacon = ath6kl_del_beacon, | |
23875136 | 1917 | .change_station = ath6kl_change_station, |
63fa1e0c JM |
1918 | .remain_on_channel = ath6kl_remain_on_channel, |
1919 | .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, | |
8a6c8060 | 1920 | .mgmt_tx = ath6kl_mgmt_tx, |
ae32c30a | 1921 | .mgmt_frame_register = ath6kl_mgmt_frame_register, |
bdcd8170 KV |
1922 | }; |
1923 | ||
1924 | struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) | |
1925 | { | |
1926 | int ret = 0; | |
1927 | struct wireless_dev *wdev; | |
1928 | ||
1929 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
1930 | if (!wdev) { | |
1931 | ath6kl_err("couldn't allocate wireless device\n"); | |
1932 | return NULL; | |
1933 | } | |
1934 | ||
1935 | /* create a new wiphy for use with cfg80211 */ | |
1936 | wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); | |
1937 | if (!wdev->wiphy) { | |
1938 | ath6kl_err("couldn't allocate wiphy device\n"); | |
1939 | kfree(wdev); | |
1940 | return NULL; | |
1941 | } | |
1942 | ||
f80574ae JM |
1943 | wdev->wiphy->mgmt_stypes = ath6kl_mgmt_stypes; |
1944 | ||
63fa1e0c JM |
1945 | wdev->wiphy->max_remain_on_channel_duration = 5000; |
1946 | ||
bdcd8170 KV |
1947 | /* set device pointer for wiphy */ |
1948 | set_wiphy_dev(wdev->wiphy, dev); | |
1949 | ||
1950 | wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
1951 | BIT(NL80211_IFTYPE_ADHOC); | |
1952 | /* max num of ssids that can be probed during scanning */ | |
1953 | wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; | |
b84da8c7 | 1954 | wdev->wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ |
bdcd8170 KV |
1955 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; |
1956 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; | |
1957 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
1958 | ||
1959 | wdev->wiphy->cipher_suites = cipher_suites; | |
1960 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
1961 | ||
1962 | ret = wiphy_register(wdev->wiphy); | |
1963 | if (ret < 0) { | |
1964 | ath6kl_err("couldn't register wiphy device\n"); | |
1965 | wiphy_free(wdev->wiphy); | |
1966 | kfree(wdev); | |
1967 | return NULL; | |
1968 | } | |
1969 | ||
1970 | return wdev; | |
1971 | } | |
1972 | ||
1973 | void ath6kl_cfg80211_deinit(struct ath6kl *ar) | |
1974 | { | |
1975 | struct wireless_dev *wdev = ar->wdev; | |
1976 | ||
1977 | if (ar->scan_req) { | |
1978 | cfg80211_scan_done(ar->scan_req, true); | |
1979 | ar->scan_req = NULL; | |
1980 | } | |
1981 | ||
1982 | if (!wdev) | |
1983 | return; | |
1984 | ||
1985 | wiphy_unregister(wdev->wiphy); | |
1986 | wiphy_free(wdev->wiphy); | |
1987 | kfree(wdev); | |
1988 | } |