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bb9f8692 ZY |
1 | /* |
2 | * Intel Wireless Multicomm 3200 WiFi driver | |
3 | * | |
4 | * Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com> | |
5 | * Samuel Ortiz <samuel.ortiz@intel.com> | |
6 | * Zhu Yi <yi.zhu@intel.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License version | |
10 | * 2 as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
20 | * 02110-1301, USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/netdevice.h> | |
d43c36dc | 26 | #include <linux/sched.h> |
13e0fe70 | 27 | #include <linux/etherdevice.h> |
bb9f8692 ZY |
28 | #include <linux/wireless.h> |
29 | #include <linux/ieee80211.h> | |
30 | #include <net/cfg80211.h> | |
31 | ||
32 | #include "iwm.h" | |
33 | #include "commands.h" | |
34 | #include "cfg80211.h" | |
35 | #include "debug.h" | |
36 | ||
37 | #define RATETAB_ENT(_rate, _rateid, _flags) \ | |
38 | { \ | |
39 | .bitrate = (_rate), \ | |
40 | .hw_value = (_rateid), \ | |
41 | .flags = (_flags), \ | |
42 | } | |
43 | ||
44 | #define CHAN2G(_channel, _freq, _flags) { \ | |
45 | .band = IEEE80211_BAND_2GHZ, \ | |
46 | .center_freq = (_freq), \ | |
47 | .hw_value = (_channel), \ | |
48 | .flags = (_flags), \ | |
49 | .max_antenna_gain = 0, \ | |
50 | .max_power = 30, \ | |
51 | } | |
52 | ||
53 | #define CHAN5G(_channel, _flags) { \ | |
54 | .band = IEEE80211_BAND_5GHZ, \ | |
55 | .center_freq = 5000 + (5 * (_channel)), \ | |
56 | .hw_value = (_channel), \ | |
57 | .flags = (_flags), \ | |
58 | .max_antenna_gain = 0, \ | |
59 | .max_power = 30, \ | |
60 | } | |
61 | ||
62 | static struct ieee80211_rate iwm_rates[] = { | |
63 | RATETAB_ENT(10, 0x1, 0), | |
64 | RATETAB_ENT(20, 0x2, 0), | |
65 | RATETAB_ENT(55, 0x4, 0), | |
66 | RATETAB_ENT(110, 0x8, 0), | |
67 | RATETAB_ENT(60, 0x10, 0), | |
68 | RATETAB_ENT(90, 0x20, 0), | |
69 | RATETAB_ENT(120, 0x40, 0), | |
70 | RATETAB_ENT(180, 0x80, 0), | |
71 | RATETAB_ENT(240, 0x100, 0), | |
72 | RATETAB_ENT(360, 0x200, 0), | |
73 | RATETAB_ENT(480, 0x400, 0), | |
74 | RATETAB_ENT(540, 0x800, 0), | |
75 | }; | |
76 | ||
77 | #define iwm_a_rates (iwm_rates + 4) | |
78 | #define iwm_a_rates_size 8 | |
79 | #define iwm_g_rates (iwm_rates + 0) | |
80 | #define iwm_g_rates_size 12 | |
81 | ||
82 | static struct ieee80211_channel iwm_2ghz_channels[] = { | |
83 | CHAN2G(1, 2412, 0), | |
84 | CHAN2G(2, 2417, 0), | |
85 | CHAN2G(3, 2422, 0), | |
86 | CHAN2G(4, 2427, 0), | |
87 | CHAN2G(5, 2432, 0), | |
88 | CHAN2G(6, 2437, 0), | |
89 | CHAN2G(7, 2442, 0), | |
90 | CHAN2G(8, 2447, 0), | |
91 | CHAN2G(9, 2452, 0), | |
92 | CHAN2G(10, 2457, 0), | |
93 | CHAN2G(11, 2462, 0), | |
94 | CHAN2G(12, 2467, 0), | |
95 | CHAN2G(13, 2472, 0), | |
96 | CHAN2G(14, 2484, 0), | |
97 | }; | |
98 | ||
99 | static struct ieee80211_channel iwm_5ghz_a_channels[] = { | |
100 | CHAN5G(34, 0), CHAN5G(36, 0), | |
101 | CHAN5G(38, 0), CHAN5G(40, 0), | |
102 | CHAN5G(42, 0), CHAN5G(44, 0), | |
103 | CHAN5G(46, 0), CHAN5G(48, 0), | |
104 | CHAN5G(52, 0), CHAN5G(56, 0), | |
105 | CHAN5G(60, 0), CHAN5G(64, 0), | |
106 | CHAN5G(100, 0), CHAN5G(104, 0), | |
107 | CHAN5G(108, 0), CHAN5G(112, 0), | |
108 | CHAN5G(116, 0), CHAN5G(120, 0), | |
109 | CHAN5G(124, 0), CHAN5G(128, 0), | |
110 | CHAN5G(132, 0), CHAN5G(136, 0), | |
111 | CHAN5G(140, 0), CHAN5G(149, 0), | |
112 | CHAN5G(153, 0), CHAN5G(157, 0), | |
113 | CHAN5G(161, 0), CHAN5G(165, 0), | |
114 | CHAN5G(184, 0), CHAN5G(188, 0), | |
115 | CHAN5G(192, 0), CHAN5G(196, 0), | |
116 | CHAN5G(200, 0), CHAN5G(204, 0), | |
117 | CHAN5G(208, 0), CHAN5G(212, 0), | |
118 | CHAN5G(216, 0), | |
119 | }; | |
120 | ||
121 | static struct ieee80211_supported_band iwm_band_2ghz = { | |
122 | .channels = iwm_2ghz_channels, | |
123 | .n_channels = ARRAY_SIZE(iwm_2ghz_channels), | |
124 | .bitrates = iwm_g_rates, | |
125 | .n_bitrates = iwm_g_rates_size, | |
126 | }; | |
127 | ||
128 | static struct ieee80211_supported_band iwm_band_5ghz = { | |
129 | .channels = iwm_5ghz_a_channels, | |
130 | .n_channels = ARRAY_SIZE(iwm_5ghz_a_channels), | |
131 | .bitrates = iwm_a_rates, | |
132 | .n_bitrates = iwm_a_rates_size, | |
133 | }; | |
134 | ||
13e0fe70 SO |
135 | static int iwm_key_init(struct iwm_key *key, u8 key_index, |
136 | const u8 *mac_addr, struct key_params *params) | |
137 | { | |
138 | key->hdr.key_idx = key_index; | |
139 | if (!mac_addr || is_broadcast_ether_addr(mac_addr)) { | |
140 | key->hdr.multicast = 1; | |
141 | memset(key->hdr.mac, 0xff, ETH_ALEN); | |
142 | } else { | |
143 | key->hdr.multicast = 0; | |
144 | memcpy(key->hdr.mac, mac_addr, ETH_ALEN); | |
145 | } | |
146 | ||
147 | if (params) { | |
148 | if (params->key_len > WLAN_MAX_KEY_LEN || | |
149 | params->seq_len > IW_ENCODE_SEQ_MAX_SIZE) | |
150 | return -EINVAL; | |
151 | ||
152 | key->cipher = params->cipher; | |
153 | key->key_len = params->key_len; | |
154 | key->seq_len = params->seq_len; | |
155 | memcpy(key->key, params->key, key->key_len); | |
156 | memcpy(key->seq, params->seq, key->seq_len); | |
157 | } | |
158 | ||
159 | return 0; | |
160 | } | |
161 | ||
13e0fe70 SO |
162 | static int iwm_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, |
163 | u8 key_index, const u8 *mac_addr, | |
164 | struct key_params *params) | |
165 | { | |
166 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
167 | struct iwm_key *key = &iwm->keys[key_index]; | |
168 | int ret; | |
169 | ||
170 | IWM_DBG_WEXT(iwm, DBG, "Adding key for %pM\n", mac_addr); | |
171 | ||
172 | memset(key, 0, sizeof(struct iwm_key)); | |
173 | ret = iwm_key_init(key, key_index, mac_addr, params); | |
174 | if (ret < 0) { | |
175 | IWM_ERR(iwm, "Invalid key_params\n"); | |
176 | return ret; | |
177 | } | |
178 | ||
13e0fe70 SO |
179 | return iwm_set_key(iwm, 0, key); |
180 | } | |
181 | ||
182 | static int iwm_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, | |
183 | u8 key_index, const u8 *mac_addr, void *cookie, | |
184 | void (*callback)(void *cookie, | |
185 | struct key_params*)) | |
186 | { | |
187 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
188 | struct iwm_key *key = &iwm->keys[key_index]; | |
189 | struct key_params params; | |
190 | ||
191 | IWM_DBG_WEXT(iwm, DBG, "Getting key %d\n", key_index); | |
192 | ||
193 | memset(¶ms, 0, sizeof(params)); | |
194 | ||
195 | params.cipher = key->cipher; | |
196 | params.key_len = key->key_len; | |
197 | params.seq_len = key->seq_len; | |
198 | params.seq = key->seq; | |
199 | params.key = key->key; | |
200 | ||
201 | callback(cookie, ¶ms); | |
202 | ||
203 | return key->key_len ? 0 : -ENOENT; | |
204 | } | |
205 | ||
206 | ||
207 | static int iwm_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, | |
208 | u8 key_index, const u8 *mac_addr) | |
209 | { | |
210 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
211 | struct iwm_key *key = &iwm->keys[key_index]; | |
212 | ||
213 | if (!iwm->keys[key_index].key_len) { | |
214 | IWM_DBG_WEXT(iwm, DBG, "Key %d not used\n", key_index); | |
215 | return 0; | |
216 | } | |
217 | ||
218 | if (key_index == iwm->default_key) | |
219 | iwm->default_key = -1; | |
220 | ||
221 | return iwm_set_key(iwm, 1, key); | |
222 | } | |
223 | ||
224 | static int iwm_cfg80211_set_default_key(struct wiphy *wiphy, | |
225 | struct net_device *ndev, | |
226 | u8 key_index) | |
227 | { | |
228 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
13e0fe70 SO |
229 | |
230 | IWM_DBG_WEXT(iwm, DBG, "Default key index is: %d\n", key_index); | |
231 | ||
232 | if (!iwm->keys[key_index].key_len) { | |
233 | IWM_ERR(iwm, "Key %d not used\n", key_index); | |
234 | return -EINVAL; | |
235 | } | |
236 | ||
35497164 SO |
237 | iwm->default_key = key_index; |
238 | ||
6e5db0a8 | 239 | return iwm_set_tx_key(iwm, key_index); |
13e0fe70 SO |
240 | } |
241 | ||
d041811d SO |
242 | static int iwm_cfg80211_get_station(struct wiphy *wiphy, |
243 | struct net_device *ndev, | |
244 | u8 *mac, struct station_info *sinfo) | |
9967d46a SO |
245 | { |
246 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
247 | ||
248 | if (memcmp(mac, iwm->bssid, ETH_ALEN)) | |
249 | return -ENOENT; | |
250 | ||
251 | sinfo->filled |= STATION_INFO_TX_BITRATE; | |
252 | sinfo->txrate.legacy = iwm->rate * 10; | |
253 | ||
254 | if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) { | |
255 | sinfo->filled |= STATION_INFO_SIGNAL; | |
256 | sinfo->signal = iwm->wstats.qual.level; | |
257 | } | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
13e0fe70 | 262 | |
bb9f8692 ZY |
263 | int iwm_cfg80211_inform_bss(struct iwm_priv *iwm) |
264 | { | |
265 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
266 | struct iwm_bss_info *bss, *next; | |
267 | struct iwm_umac_notif_bss_info *umac_bss; | |
268 | struct ieee80211_mgmt *mgmt; | |
269 | struct ieee80211_channel *channel; | |
270 | struct ieee80211_supported_band *band; | |
271 | s32 signal; | |
272 | int freq; | |
273 | ||
274 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) { | |
275 | umac_bss = bss->bss; | |
276 | mgmt = (struct ieee80211_mgmt *)(umac_bss->frame_buf); | |
277 | ||
278 | if (umac_bss->band == UMAC_BAND_2GHZ) | |
279 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
280 | else if (umac_bss->band == UMAC_BAND_5GHZ) | |
281 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
282 | else { | |
283 | IWM_ERR(iwm, "Invalid band: %d\n", umac_bss->band); | |
284 | return -EINVAL; | |
285 | } | |
286 | ||
287 | freq = ieee80211_channel_to_frequency(umac_bss->channel); | |
288 | channel = ieee80211_get_channel(wiphy, freq); | |
289 | signal = umac_bss->rssi * 100; | |
290 | ||
291 | if (!cfg80211_inform_bss_frame(wiphy, channel, mgmt, | |
292 | le16_to_cpu(umac_bss->frame_len), | |
293 | signal, GFP_KERNEL)) | |
294 | return -EINVAL; | |
295 | } | |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
e36d56b6 JB |
300 | static int iwm_cfg80211_change_iface(struct wiphy *wiphy, |
301 | struct net_device *ndev, | |
bb9f8692 ZY |
302 | enum nl80211_iftype type, u32 *flags, |
303 | struct vif_params *params) | |
304 | { | |
bb9f8692 ZY |
305 | struct wireless_dev *wdev; |
306 | struct iwm_priv *iwm; | |
307 | u32 old_mode; | |
308 | ||
bb9f8692 ZY |
309 | wdev = ndev->ieee80211_ptr; |
310 | iwm = ndev_to_iwm(ndev); | |
311 | old_mode = iwm->conf.mode; | |
312 | ||
313 | switch (type) { | |
314 | case NL80211_IFTYPE_STATION: | |
315 | iwm->conf.mode = UMAC_MODE_BSS; | |
316 | break; | |
317 | case NL80211_IFTYPE_ADHOC: | |
318 | iwm->conf.mode = UMAC_MODE_IBSS; | |
319 | break; | |
320 | default: | |
321 | return -EOPNOTSUPP; | |
322 | } | |
323 | ||
324 | wdev->iftype = type; | |
325 | ||
326 | if ((old_mode == iwm->conf.mode) || !iwm->umac_profile) | |
327 | return 0; | |
328 | ||
329 | iwm->umac_profile->mode = cpu_to_le32(iwm->conf.mode); | |
330 | ||
ae73abf2 ZY |
331 | if (iwm->umac_profile_active) |
332 | iwm_invalidate_mlme_profile(iwm); | |
bb9f8692 ZY |
333 | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static int iwm_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, | |
338 | struct cfg80211_scan_request *request) | |
339 | { | |
340 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
341 | int ret; | |
342 | ||
343 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) { | |
344 | IWM_ERR(iwm, "Scan while device is not ready\n"); | |
345 | return -EIO; | |
346 | } | |
347 | ||
348 | if (test_bit(IWM_STATUS_SCANNING, &iwm->status)) { | |
349 | IWM_ERR(iwm, "Scanning already\n"); | |
350 | return -EAGAIN; | |
351 | } | |
352 | ||
353 | if (test_bit(IWM_STATUS_SCAN_ABORTING, &iwm->status)) { | |
354 | IWM_ERR(iwm, "Scanning being aborted\n"); | |
355 | return -EAGAIN; | |
356 | } | |
357 | ||
358 | set_bit(IWM_STATUS_SCANNING, &iwm->status); | |
359 | ||
360 | ret = iwm_scan_ssids(iwm, request->ssids, request->n_ssids); | |
361 | if (ret) { | |
362 | clear_bit(IWM_STATUS_SCANNING, &iwm->status); | |
363 | return ret; | |
364 | } | |
365 | ||
366 | iwm->scan_request = request; | |
367 | return 0; | |
368 | } | |
369 | ||
370 | static int iwm_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
371 | { | |
372 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
373 | ||
374 | if (changed & WIPHY_PARAM_RTS_THRESHOLD && | |
375 | (iwm->conf.rts_threshold != wiphy->rts_threshold)) { | |
376 | int ret; | |
377 | ||
378 | iwm->conf.rts_threshold = wiphy->rts_threshold; | |
379 | ||
380 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
381 | CFG_RTS_THRESHOLD, | |
382 | iwm->conf.rts_threshold); | |
383 | if (ret < 0) | |
384 | return ret; | |
385 | } | |
386 | ||
387 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD && | |
388 | (iwm->conf.frag_threshold != wiphy->frag_threshold)) { | |
389 | int ret; | |
390 | ||
391 | iwm->conf.frag_threshold = wiphy->frag_threshold; | |
392 | ||
b63b0ea2 | 393 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX, |
bb9f8692 ZY |
394 | CFG_FRAG_THRESHOLD, |
395 | iwm->conf.frag_threshold); | |
396 | if (ret < 0) | |
397 | return ret; | |
398 | } | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | static int iwm_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
404 | struct cfg80211_ibss_params *params) | |
405 | { | |
406 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
407 | struct ieee80211_channel *chan = params->channel; | |
408 | struct cfg80211_bss *bss; | |
409 | ||
410 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
411 | return -EIO; | |
412 | ||
413 | /* UMAC doesn't support creating IBSS network with specified bssid. | |
414 | * This should be removed after we have join only mode supported. */ | |
415 | if (params->bssid) | |
416 | return -EOPNOTSUPP; | |
417 | ||
418 | bss = cfg80211_get_ibss(iwm_to_wiphy(iwm), NULL, | |
419 | params->ssid, params->ssid_len); | |
420 | if (!bss) { | |
421 | iwm_scan_one_ssid(iwm, params->ssid, params->ssid_len); | |
422 | schedule_timeout_interruptible(2 * HZ); | |
423 | bss = cfg80211_get_ibss(iwm_to_wiphy(iwm), NULL, | |
424 | params->ssid, params->ssid_len); | |
425 | } | |
426 | /* IBSS join only mode is not supported by UMAC ATM */ | |
427 | if (bss) { | |
428 | cfg80211_put_bss(bss); | |
429 | return -EOPNOTSUPP; | |
430 | } | |
431 | ||
432 | iwm->channel = ieee80211_frequency_to_channel(chan->center_freq); | |
433 | iwm->umac_profile->ibss.band = chan->band; | |
434 | iwm->umac_profile->ibss.channel = iwm->channel; | |
435 | iwm->umac_profile->ssid.ssid_len = params->ssid_len; | |
436 | memcpy(iwm->umac_profile->ssid.ssid, params->ssid, params->ssid_len); | |
437 | ||
438 | if (params->bssid) | |
439 | memcpy(&iwm->umac_profile->bssid[0], params->bssid, ETH_ALEN); | |
440 | ||
441 | return iwm_send_mlme_profile(iwm); | |
442 | } | |
443 | ||
444 | static int iwm_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
445 | { | |
446 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
447 | ||
448 | if (iwm->umac_profile_active) | |
449 | return iwm_invalidate_mlme_profile(iwm); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
9967d46a SO |
454 | static int iwm_set_auth_type(struct iwm_priv *iwm, |
455 | enum nl80211_auth_type sme_auth_type) | |
456 | { | |
457 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
458 | ||
459 | switch (sme_auth_type) { | |
460 | case NL80211_AUTHTYPE_AUTOMATIC: | |
461 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
462 | IWM_DBG_WEXT(iwm, DBG, "OPEN auth\n"); | |
463 | *auth_type = UMAC_AUTH_TYPE_OPEN; | |
464 | break; | |
465 | case NL80211_AUTHTYPE_SHARED_KEY: | |
466 | if (iwm->umac_profile->sec.flags & | |
467 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) { | |
468 | IWM_DBG_WEXT(iwm, DBG, "WPA auth alg\n"); | |
469 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
470 | } else { | |
471 | IWM_DBG_WEXT(iwm, DBG, "WEP shared key auth alg\n"); | |
472 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
473 | } | |
474 | ||
475 | break; | |
476 | default: | |
477 | IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", sme_auth_type); | |
478 | return -ENOTSUPP; | |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | static int iwm_set_wpa_version(struct iwm_priv *iwm, u32 wpa_version) | |
485 | { | |
554503f8 ZY |
486 | IWM_DBG_WEXT(iwm, DBG, "wpa_version: %d\n", wpa_version); |
487 | ||
9967d46a SO |
488 | if (!wpa_version) { |
489 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE; | |
490 | return 0; | |
491 | } | |
492 | ||
493 | if (wpa_version & NL80211_WPA_VERSION_2) | |
494 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK; | |
495 | ||
496 | if (wpa_version & NL80211_WPA_VERSION_1) | |
497 | iwm->umac_profile->sec.flags |= UMAC_SEC_FLG_WPA_ON_MSK; | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static int iwm_set_cipher(struct iwm_priv *iwm, u32 cipher, bool ucast) | |
503 | { | |
504 | u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher : | |
505 | &iwm->umac_profile->sec.mcast_cipher; | |
506 | ||
507 | if (!cipher) { | |
508 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
509 | return 0; | |
510 | } | |
511 | ||
554503f8 ZY |
512 | IWM_DBG_WEXT(iwm, DBG, "%ccast cipher is 0x%x\n", ucast ? 'u' : 'm', |
513 | cipher); | |
514 | ||
9967d46a SO |
515 | switch (cipher) { |
516 | case IW_AUTH_CIPHER_NONE: | |
517 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
518 | break; | |
519 | case WLAN_CIPHER_SUITE_WEP40: | |
520 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_40; | |
521 | break; | |
522 | case WLAN_CIPHER_SUITE_WEP104: | |
523 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_104; | |
524 | break; | |
525 | case WLAN_CIPHER_SUITE_TKIP: | |
526 | *profile_cipher = UMAC_CIPHER_TYPE_TKIP; | |
527 | break; | |
528 | case WLAN_CIPHER_SUITE_CCMP: | |
529 | *profile_cipher = UMAC_CIPHER_TYPE_CCMP; | |
530 | break; | |
531 | default: | |
532 | IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher); | |
533 | return -ENOTSUPP; | |
534 | } | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
539 | static int iwm_set_key_mgt(struct iwm_priv *iwm, u32 key_mgt) | |
540 | { | |
541 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
542 | ||
543 | IWM_DBG_WEXT(iwm, DBG, "key_mgt: 0x%x\n", key_mgt); | |
544 | ||
545 | if (key_mgt == WLAN_AKM_SUITE_8021X) | |
546 | *auth_type = UMAC_AUTH_TYPE_8021X; | |
547 | else if (key_mgt == WLAN_AKM_SUITE_PSK) { | |
548 | if (iwm->umac_profile->sec.flags & | |
549 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) | |
550 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
551 | else | |
552 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
553 | } else { | |
554 | IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt); | |
555 | return -EINVAL; | |
556 | } | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | ||
562 | static int iwm_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, | |
563 | struct cfg80211_connect_params *sme) | |
564 | { | |
565 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
566 | struct ieee80211_channel *chan = sme->channel; | |
b90a5c95 | 567 | struct key_params key_param; |
9967d46a SO |
568 | int ret; |
569 | ||
570 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
571 | return -EIO; | |
572 | ||
573 | if (!sme->ssid) | |
574 | return -EINVAL; | |
575 | ||
ae73abf2 ZY |
576 | if (iwm->umac_profile_active) { |
577 | ret = iwm_invalidate_mlme_profile(iwm); | |
578 | if (ret) { | |
579 | IWM_ERR(iwm, "Couldn't invalidate profile\n"); | |
580 | return ret; | |
581 | } | |
582 | } | |
583 | ||
9967d46a SO |
584 | if (chan) |
585 | iwm->channel = | |
586 | ieee80211_frequency_to_channel(chan->center_freq); | |
587 | ||
588 | iwm->umac_profile->ssid.ssid_len = sme->ssid_len; | |
589 | memcpy(iwm->umac_profile->ssid.ssid, sme->ssid, sme->ssid_len); | |
590 | ||
591 | if (sme->bssid) { | |
592 | IWM_DBG_WEXT(iwm, DBG, "BSSID: %pM\n", sme->bssid); | |
593 | memcpy(&iwm->umac_profile->bssid[0], sme->bssid, ETH_ALEN); | |
594 | iwm->umac_profile->bss_num = 1; | |
595 | } else { | |
596 | memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN); | |
597 | iwm->umac_profile->bss_num = 0; | |
598 | } | |
599 | ||
554503f8 | 600 | ret = iwm_set_wpa_version(iwm, sme->crypto.wpa_versions); |
9967d46a SO |
601 | if (ret < 0) |
602 | return ret; | |
603 | ||
554503f8 | 604 | ret = iwm_set_auth_type(iwm, sme->auth_type); |
9967d46a SO |
605 | if (ret < 0) |
606 | return ret; | |
607 | ||
608 | if (sme->crypto.n_ciphers_pairwise) { | |
609 | ret = iwm_set_cipher(iwm, sme->crypto.ciphers_pairwise[0], | |
610 | true); | |
611 | if (ret < 0) | |
612 | return ret; | |
613 | } | |
614 | ||
615 | ret = iwm_set_cipher(iwm, sme->crypto.cipher_group, false); | |
616 | if (ret < 0) | |
617 | return ret; | |
618 | ||
619 | if (sme->crypto.n_akm_suites) { | |
620 | ret = iwm_set_key_mgt(iwm, sme->crypto.akm_suites[0]); | |
621 | if (ret < 0) | |
622 | return ret; | |
623 | } | |
624 | ||
b90a5c95 SO |
625 | /* |
626 | * We save the WEP key in case we want to do shared authentication. | |
627 | * We have to do it so because UMAC will assert whenever it gets a | |
628 | * key before a profile. | |
629 | */ | |
630 | if (sme->key) { | |
631 | key_param.key = kmemdup(sme->key, sme->key_len, GFP_KERNEL); | |
632 | if (key_param.key == NULL) | |
633 | return -ENOMEM; | |
634 | key_param.key_len = sme->key_len; | |
635 | key_param.seq_len = 0; | |
636 | key_param.cipher = sme->crypto.ciphers_pairwise[0]; | |
637 | ||
638 | ret = iwm_key_init(&iwm->keys[sme->key_idx], sme->key_idx, | |
639 | NULL, &key_param); | |
640 | kfree(key_param.key); | |
641 | if (ret < 0) { | |
642 | IWM_ERR(iwm, "Invalid key_params\n"); | |
643 | return ret; | |
644 | } | |
645 | ||
646 | iwm->default_key = sme->key_idx; | |
647 | } | |
648 | ||
649 | ret = iwm_send_mlme_profile(iwm); | |
650 | ||
651 | if (iwm->umac_profile->sec.auth_type != UMAC_AUTH_TYPE_LEGACY_PSK || | |
652 | sme->key == NULL) | |
653 | return ret; | |
654 | ||
655 | /* | |
656 | * We want to do shared auth. | |
657 | * We need to actually set the key we previously cached, | |
658 | * and then tell the UMAC it's the default one. | |
659 | * That will trigger the auth+assoc UMAC machinery, and again, | |
660 | * this must be done after setting the profile. | |
661 | */ | |
662 | ret = iwm_set_key(iwm, 0, &iwm->keys[sme->key_idx]); | |
663 | if (ret < 0) | |
664 | return ret; | |
665 | ||
666 | return iwm_set_tx_key(iwm, iwm->default_key); | |
9967d46a SO |
667 | } |
668 | ||
669 | static int iwm_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, | |
670 | u16 reason_code) | |
671 | { | |
672 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
673 | ||
674 | IWM_DBG_WEXT(iwm, DBG, "Active: %d\n", iwm->umac_profile_active); | |
675 | ||
676 | if (iwm->umac_profile_active) | |
de15fd31 | 677 | iwm_invalidate_mlme_profile(iwm); |
9967d46a SO |
678 | |
679 | return 0; | |
680 | } | |
681 | ||
257862f3 ZY |
682 | static int iwm_cfg80211_set_txpower(struct wiphy *wiphy, |
683 | enum tx_power_setting type, int dbm) | |
684 | { | |
685 | switch (type) { | |
686 | case TX_POWER_AUTOMATIC: | |
687 | return 0; | |
688 | default: | |
689 | return -EOPNOTSUPP; | |
690 | } | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
695 | static int iwm_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) | |
696 | { | |
697 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
698 | ||
699 | *dbm = iwm->txpower; | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
bc92afd9 JB |
704 | static int iwm_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
705 | struct net_device *dev, | |
706 | bool enabled, int timeout) | |
707 | { | |
708 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
709 | u32 power_index; | |
710 | ||
711 | if (enabled) | |
712 | power_index = IWM_POWER_INDEX_DEFAULT; | |
713 | else | |
714 | power_index = IWM_POWER_INDEX_MIN; | |
715 | ||
716 | if (power_index == iwm->conf.power_index) | |
717 | return 0; | |
718 | ||
719 | iwm->conf.power_index = power_index; | |
720 | ||
721 | return iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
722 | CFG_POWER_INDEX, iwm->conf.power_index); | |
723 | } | |
724 | ||
bb9f8692 ZY |
725 | static struct cfg80211_ops iwm_cfg80211_ops = { |
726 | .change_virtual_intf = iwm_cfg80211_change_iface, | |
13e0fe70 SO |
727 | .add_key = iwm_cfg80211_add_key, |
728 | .get_key = iwm_cfg80211_get_key, | |
729 | .del_key = iwm_cfg80211_del_key, | |
730 | .set_default_key = iwm_cfg80211_set_default_key, | |
9967d46a | 731 | .get_station = iwm_cfg80211_get_station, |
bb9f8692 ZY |
732 | .scan = iwm_cfg80211_scan, |
733 | .set_wiphy_params = iwm_cfg80211_set_wiphy_params, | |
9967d46a SO |
734 | .connect = iwm_cfg80211_connect, |
735 | .disconnect = iwm_cfg80211_disconnect, | |
bb9f8692 ZY |
736 | .join_ibss = iwm_cfg80211_join_ibss, |
737 | .leave_ibss = iwm_cfg80211_leave_ibss, | |
257862f3 ZY |
738 | .set_tx_power = iwm_cfg80211_set_txpower, |
739 | .get_tx_power = iwm_cfg80211_get_txpower, | |
bc92afd9 | 740 | .set_power_mgmt = iwm_cfg80211_set_power_mgmt, |
bb9f8692 ZY |
741 | }; |
742 | ||
49b77727 ZY |
743 | static const u32 cipher_suites[] = { |
744 | WLAN_CIPHER_SUITE_WEP40, | |
745 | WLAN_CIPHER_SUITE_WEP104, | |
746 | WLAN_CIPHER_SUITE_TKIP, | |
747 | WLAN_CIPHER_SUITE_CCMP, | |
748 | }; | |
749 | ||
bb9f8692 ZY |
750 | struct wireless_dev *iwm_wdev_alloc(int sizeof_bus, struct device *dev) |
751 | { | |
752 | int ret = 0; | |
753 | struct wireless_dev *wdev; | |
754 | ||
755 | /* | |
756 | * We're trying to have the following memory | |
757 | * layout: | |
758 | * | |
759 | * +-------------------------+ | |
760 | * | struct wiphy | | |
761 | * +-------------------------+ | |
762 | * | struct iwm_priv | | |
763 | * +-------------------------+ | |
764 | * | bus private data | | |
765 | * | (e.g. iwm_priv_sdio) | | |
766 | * +-------------------------+ | |
767 | * | |
768 | */ | |
769 | ||
770 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
771 | if (!wdev) { | |
772 | dev_err(dev, "Couldn't allocate wireless device\n"); | |
773 | return ERR_PTR(-ENOMEM); | |
774 | } | |
775 | ||
776 | wdev->wiphy = wiphy_new(&iwm_cfg80211_ops, | |
777 | sizeof(struct iwm_priv) + sizeof_bus); | |
778 | if (!wdev->wiphy) { | |
779 | dev_err(dev, "Couldn't allocate wiphy device\n"); | |
780 | ret = -ENOMEM; | |
781 | goto out_err_new; | |
782 | } | |
783 | ||
784 | set_wiphy_dev(wdev->wiphy, dev); | |
785 | wdev->wiphy->max_scan_ssids = UMAC_WIFI_IF_PROBE_OPTION_MAX; | |
786 | wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
787 | BIT(NL80211_IFTYPE_ADHOC); | |
788 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &iwm_band_2ghz; | |
789 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &iwm_band_5ghz; | |
790 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
791 | ||
49b77727 ZY |
792 | wdev->wiphy->cipher_suites = cipher_suites; |
793 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
794 | ||
bb9f8692 ZY |
795 | ret = wiphy_register(wdev->wiphy); |
796 | if (ret < 0) { | |
797 | dev_err(dev, "Couldn't register wiphy device\n"); | |
798 | goto out_err_register; | |
799 | } | |
800 | ||
801 | return wdev; | |
802 | ||
803 | out_err_register: | |
804 | wiphy_free(wdev->wiphy); | |
805 | ||
806 | out_err_new: | |
807 | kfree(wdev); | |
808 | ||
809 | return ERR_PTR(ret); | |
810 | } | |
811 | ||
812 | void iwm_wdev_free(struct iwm_priv *iwm) | |
813 | { | |
814 | struct wireless_dev *wdev = iwm_to_wdev(iwm); | |
815 | ||
816 | if (!wdev) | |
817 | return; | |
818 | ||
819 | wiphy_unregister(wdev->wiphy); | |
820 | wiphy_free(wdev->wiphy); | |
821 | kfree(wdev); | |
822 | } |