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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> | |
5a0e3ad6 | 30 | #include <linux/slab.h> |
bb9f8692 ZY |
31 | #include <net/cfg80211.h> |
32 | ||
33 | #include "iwm.h" | |
34 | #include "commands.h" | |
35 | #include "cfg80211.h" | |
36 | #include "debug.h" | |
37 | ||
38 | #define RATETAB_ENT(_rate, _rateid, _flags) \ | |
39 | { \ | |
40 | .bitrate = (_rate), \ | |
41 | .hw_value = (_rateid), \ | |
42 | .flags = (_flags), \ | |
43 | } | |
44 | ||
45 | #define CHAN2G(_channel, _freq, _flags) { \ | |
46 | .band = IEEE80211_BAND_2GHZ, \ | |
47 | .center_freq = (_freq), \ | |
48 | .hw_value = (_channel), \ | |
49 | .flags = (_flags), \ | |
50 | .max_antenna_gain = 0, \ | |
51 | .max_power = 30, \ | |
52 | } | |
53 | ||
54 | #define CHAN5G(_channel, _flags) { \ | |
55 | .band = IEEE80211_BAND_5GHZ, \ | |
56 | .center_freq = 5000 + (5 * (_channel)), \ | |
57 | .hw_value = (_channel), \ | |
58 | .flags = (_flags), \ | |
59 | .max_antenna_gain = 0, \ | |
60 | .max_power = 30, \ | |
61 | } | |
62 | ||
63 | static struct ieee80211_rate iwm_rates[] = { | |
64 | RATETAB_ENT(10, 0x1, 0), | |
65 | RATETAB_ENT(20, 0x2, 0), | |
66 | RATETAB_ENT(55, 0x4, 0), | |
67 | RATETAB_ENT(110, 0x8, 0), | |
68 | RATETAB_ENT(60, 0x10, 0), | |
69 | RATETAB_ENT(90, 0x20, 0), | |
70 | RATETAB_ENT(120, 0x40, 0), | |
71 | RATETAB_ENT(180, 0x80, 0), | |
72 | RATETAB_ENT(240, 0x100, 0), | |
73 | RATETAB_ENT(360, 0x200, 0), | |
74 | RATETAB_ENT(480, 0x400, 0), | |
75 | RATETAB_ENT(540, 0x800, 0), | |
76 | }; | |
77 | ||
78 | #define iwm_a_rates (iwm_rates + 4) | |
79 | #define iwm_a_rates_size 8 | |
80 | #define iwm_g_rates (iwm_rates + 0) | |
81 | #define iwm_g_rates_size 12 | |
82 | ||
83 | static struct ieee80211_channel iwm_2ghz_channels[] = { | |
84 | CHAN2G(1, 2412, 0), | |
85 | CHAN2G(2, 2417, 0), | |
86 | CHAN2G(3, 2422, 0), | |
87 | CHAN2G(4, 2427, 0), | |
88 | CHAN2G(5, 2432, 0), | |
89 | CHAN2G(6, 2437, 0), | |
90 | CHAN2G(7, 2442, 0), | |
91 | CHAN2G(8, 2447, 0), | |
92 | CHAN2G(9, 2452, 0), | |
93 | CHAN2G(10, 2457, 0), | |
94 | CHAN2G(11, 2462, 0), | |
95 | CHAN2G(12, 2467, 0), | |
96 | CHAN2G(13, 2472, 0), | |
97 | CHAN2G(14, 2484, 0), | |
98 | }; | |
99 | ||
100 | static struct ieee80211_channel iwm_5ghz_a_channels[] = { | |
101 | CHAN5G(34, 0), CHAN5G(36, 0), | |
102 | CHAN5G(38, 0), CHAN5G(40, 0), | |
103 | CHAN5G(42, 0), CHAN5G(44, 0), | |
104 | CHAN5G(46, 0), CHAN5G(48, 0), | |
105 | CHAN5G(52, 0), CHAN5G(56, 0), | |
106 | CHAN5G(60, 0), CHAN5G(64, 0), | |
107 | CHAN5G(100, 0), CHAN5G(104, 0), | |
108 | CHAN5G(108, 0), CHAN5G(112, 0), | |
109 | CHAN5G(116, 0), CHAN5G(120, 0), | |
110 | CHAN5G(124, 0), CHAN5G(128, 0), | |
111 | CHAN5G(132, 0), CHAN5G(136, 0), | |
112 | CHAN5G(140, 0), CHAN5G(149, 0), | |
113 | CHAN5G(153, 0), CHAN5G(157, 0), | |
114 | CHAN5G(161, 0), CHAN5G(165, 0), | |
115 | CHAN5G(184, 0), CHAN5G(188, 0), | |
116 | CHAN5G(192, 0), CHAN5G(196, 0), | |
117 | CHAN5G(200, 0), CHAN5G(204, 0), | |
118 | CHAN5G(208, 0), CHAN5G(212, 0), | |
119 | CHAN5G(216, 0), | |
120 | }; | |
121 | ||
122 | static struct ieee80211_supported_band iwm_band_2ghz = { | |
123 | .channels = iwm_2ghz_channels, | |
124 | .n_channels = ARRAY_SIZE(iwm_2ghz_channels), | |
125 | .bitrates = iwm_g_rates, | |
126 | .n_bitrates = iwm_g_rates_size, | |
127 | }; | |
128 | ||
129 | static struct ieee80211_supported_band iwm_band_5ghz = { | |
130 | .channels = iwm_5ghz_a_channels, | |
131 | .n_channels = ARRAY_SIZE(iwm_5ghz_a_channels), | |
132 | .bitrates = iwm_a_rates, | |
133 | .n_bitrates = iwm_a_rates_size, | |
134 | }; | |
135 | ||
13e0fe70 SO |
136 | static int iwm_key_init(struct iwm_key *key, u8 key_index, |
137 | const u8 *mac_addr, struct key_params *params) | |
138 | { | |
139 | key->hdr.key_idx = key_index; | |
140 | if (!mac_addr || is_broadcast_ether_addr(mac_addr)) { | |
141 | key->hdr.multicast = 1; | |
142 | memset(key->hdr.mac, 0xff, ETH_ALEN); | |
143 | } else { | |
144 | key->hdr.multicast = 0; | |
145 | memcpy(key->hdr.mac, mac_addr, ETH_ALEN); | |
146 | } | |
147 | ||
148 | if (params) { | |
149 | if (params->key_len > WLAN_MAX_KEY_LEN || | |
150 | params->seq_len > IW_ENCODE_SEQ_MAX_SIZE) | |
151 | return -EINVAL; | |
152 | ||
153 | key->cipher = params->cipher; | |
154 | key->key_len = params->key_len; | |
155 | key->seq_len = params->seq_len; | |
156 | memcpy(key->key, params->key, key->key_len); | |
157 | memcpy(key->seq, params->seq, key->seq_len); | |
158 | } | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
13e0fe70 SO |
163 | static int iwm_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, |
164 | u8 key_index, const u8 *mac_addr, | |
165 | struct key_params *params) | |
166 | { | |
167 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
168 | struct iwm_key *key = &iwm->keys[key_index]; | |
169 | int ret; | |
170 | ||
171 | IWM_DBG_WEXT(iwm, DBG, "Adding key for %pM\n", mac_addr); | |
172 | ||
173 | memset(key, 0, sizeof(struct iwm_key)); | |
174 | ret = iwm_key_init(key, key_index, mac_addr, params); | |
175 | if (ret < 0) { | |
176 | IWM_ERR(iwm, "Invalid key_params\n"); | |
177 | return ret; | |
178 | } | |
179 | ||
13e0fe70 SO |
180 | return iwm_set_key(iwm, 0, key); |
181 | } | |
182 | ||
183 | static int iwm_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, | |
184 | u8 key_index, const u8 *mac_addr, void *cookie, | |
185 | void (*callback)(void *cookie, | |
186 | struct key_params*)) | |
187 | { | |
188 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
189 | struct iwm_key *key = &iwm->keys[key_index]; | |
190 | struct key_params params; | |
191 | ||
192 | IWM_DBG_WEXT(iwm, DBG, "Getting key %d\n", key_index); | |
193 | ||
194 | memset(¶ms, 0, sizeof(params)); | |
195 | ||
196 | params.cipher = key->cipher; | |
197 | params.key_len = key->key_len; | |
198 | params.seq_len = key->seq_len; | |
199 | params.seq = key->seq; | |
200 | params.key = key->key; | |
201 | ||
202 | callback(cookie, ¶ms); | |
203 | ||
204 | return key->key_len ? 0 : -ENOENT; | |
205 | } | |
206 | ||
207 | ||
208 | static int iwm_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, | |
209 | u8 key_index, const u8 *mac_addr) | |
210 | { | |
211 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
212 | struct iwm_key *key = &iwm->keys[key_index]; | |
213 | ||
214 | if (!iwm->keys[key_index].key_len) { | |
215 | IWM_DBG_WEXT(iwm, DBG, "Key %d not used\n", key_index); | |
216 | return 0; | |
217 | } | |
218 | ||
219 | if (key_index == iwm->default_key) | |
220 | iwm->default_key = -1; | |
221 | ||
222 | return iwm_set_key(iwm, 1, key); | |
223 | } | |
224 | ||
225 | static int iwm_cfg80211_set_default_key(struct wiphy *wiphy, | |
226 | struct net_device *ndev, | |
227 | u8 key_index) | |
228 | { | |
229 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
13e0fe70 SO |
230 | |
231 | IWM_DBG_WEXT(iwm, DBG, "Default key index is: %d\n", key_index); | |
232 | ||
233 | if (!iwm->keys[key_index].key_len) { | |
234 | IWM_ERR(iwm, "Key %d not used\n", key_index); | |
235 | return -EINVAL; | |
236 | } | |
237 | ||
35497164 SO |
238 | iwm->default_key = key_index; |
239 | ||
6e5db0a8 | 240 | return iwm_set_tx_key(iwm, key_index); |
13e0fe70 SO |
241 | } |
242 | ||
d041811d SO |
243 | static int iwm_cfg80211_get_station(struct wiphy *wiphy, |
244 | struct net_device *ndev, | |
245 | u8 *mac, struct station_info *sinfo) | |
9967d46a SO |
246 | { |
247 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
248 | ||
249 | if (memcmp(mac, iwm->bssid, ETH_ALEN)) | |
250 | return -ENOENT; | |
251 | ||
252 | sinfo->filled |= STATION_INFO_TX_BITRATE; | |
253 | sinfo->txrate.legacy = iwm->rate * 10; | |
254 | ||
255 | if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) { | |
256 | sinfo->filled |= STATION_INFO_SIGNAL; | |
257 | sinfo->signal = iwm->wstats.qual.level; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
13e0fe70 | 263 | |
bb9f8692 ZY |
264 | int iwm_cfg80211_inform_bss(struct iwm_priv *iwm) |
265 | { | |
266 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
267 | struct iwm_bss_info *bss, *next; | |
268 | struct iwm_umac_notif_bss_info *umac_bss; | |
269 | struct ieee80211_mgmt *mgmt; | |
270 | struct ieee80211_channel *channel; | |
271 | struct ieee80211_supported_band *band; | |
272 | s32 signal; | |
273 | int freq; | |
274 | ||
275 | list_for_each_entry_safe(bss, next, &iwm->bss_list, node) { | |
276 | umac_bss = bss->bss; | |
277 | mgmt = (struct ieee80211_mgmt *)(umac_bss->frame_buf); | |
278 | ||
279 | if (umac_bss->band == UMAC_BAND_2GHZ) | |
280 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
281 | else if (umac_bss->band == UMAC_BAND_5GHZ) | |
282 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
283 | else { | |
284 | IWM_ERR(iwm, "Invalid band: %d\n", umac_bss->band); | |
285 | return -EINVAL; | |
286 | } | |
287 | ||
288 | freq = ieee80211_channel_to_frequency(umac_bss->channel); | |
289 | channel = ieee80211_get_channel(wiphy, freq); | |
290 | signal = umac_bss->rssi * 100; | |
291 | ||
292 | if (!cfg80211_inform_bss_frame(wiphy, channel, mgmt, | |
293 | le16_to_cpu(umac_bss->frame_len), | |
294 | signal, GFP_KERNEL)) | |
295 | return -EINVAL; | |
296 | } | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
e36d56b6 JB |
301 | static int iwm_cfg80211_change_iface(struct wiphy *wiphy, |
302 | struct net_device *ndev, | |
bb9f8692 ZY |
303 | enum nl80211_iftype type, u32 *flags, |
304 | struct vif_params *params) | |
305 | { | |
bb9f8692 ZY |
306 | struct wireless_dev *wdev; |
307 | struct iwm_priv *iwm; | |
308 | u32 old_mode; | |
309 | ||
bb9f8692 ZY |
310 | wdev = ndev->ieee80211_ptr; |
311 | iwm = ndev_to_iwm(ndev); | |
312 | old_mode = iwm->conf.mode; | |
313 | ||
314 | switch (type) { | |
315 | case NL80211_IFTYPE_STATION: | |
316 | iwm->conf.mode = UMAC_MODE_BSS; | |
317 | break; | |
318 | case NL80211_IFTYPE_ADHOC: | |
319 | iwm->conf.mode = UMAC_MODE_IBSS; | |
320 | break; | |
321 | default: | |
322 | return -EOPNOTSUPP; | |
323 | } | |
324 | ||
325 | wdev->iftype = type; | |
326 | ||
327 | if ((old_mode == iwm->conf.mode) || !iwm->umac_profile) | |
328 | return 0; | |
329 | ||
330 | iwm->umac_profile->mode = cpu_to_le32(iwm->conf.mode); | |
331 | ||
ae73abf2 ZY |
332 | if (iwm->umac_profile_active) |
333 | iwm_invalidate_mlme_profile(iwm); | |
bb9f8692 ZY |
334 | |
335 | return 0; | |
336 | } | |
337 | ||
338 | static int iwm_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, | |
339 | struct cfg80211_scan_request *request) | |
340 | { | |
341 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
342 | int ret; | |
343 | ||
344 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) { | |
345 | IWM_ERR(iwm, "Scan while device is not ready\n"); | |
346 | return -EIO; | |
347 | } | |
348 | ||
349 | if (test_bit(IWM_STATUS_SCANNING, &iwm->status)) { | |
350 | IWM_ERR(iwm, "Scanning already\n"); | |
351 | return -EAGAIN; | |
352 | } | |
353 | ||
354 | if (test_bit(IWM_STATUS_SCAN_ABORTING, &iwm->status)) { | |
355 | IWM_ERR(iwm, "Scanning being aborted\n"); | |
356 | return -EAGAIN; | |
357 | } | |
358 | ||
359 | set_bit(IWM_STATUS_SCANNING, &iwm->status); | |
360 | ||
361 | ret = iwm_scan_ssids(iwm, request->ssids, request->n_ssids); | |
362 | if (ret) { | |
363 | clear_bit(IWM_STATUS_SCANNING, &iwm->status); | |
364 | return ret; | |
365 | } | |
366 | ||
367 | iwm->scan_request = request; | |
368 | return 0; | |
369 | } | |
370 | ||
371 | static int iwm_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
372 | { | |
373 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
374 | ||
375 | if (changed & WIPHY_PARAM_RTS_THRESHOLD && | |
376 | (iwm->conf.rts_threshold != wiphy->rts_threshold)) { | |
377 | int ret; | |
378 | ||
379 | iwm->conf.rts_threshold = wiphy->rts_threshold; | |
380 | ||
381 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
382 | CFG_RTS_THRESHOLD, | |
383 | iwm->conf.rts_threshold); | |
384 | if (ret < 0) | |
385 | return ret; | |
386 | } | |
387 | ||
388 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD && | |
389 | (iwm->conf.frag_threshold != wiphy->frag_threshold)) { | |
390 | int ret; | |
391 | ||
392 | iwm->conf.frag_threshold = wiphy->frag_threshold; | |
393 | ||
b63b0ea2 | 394 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX, |
bb9f8692 ZY |
395 | CFG_FRAG_THRESHOLD, |
396 | iwm->conf.frag_threshold); | |
397 | if (ret < 0) | |
398 | return ret; | |
399 | } | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | static int iwm_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
405 | struct cfg80211_ibss_params *params) | |
406 | { | |
407 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
408 | struct ieee80211_channel *chan = params->channel; | |
bb9f8692 ZY |
409 | |
410 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
411 | return -EIO; | |
412 | ||
03d1a62c ZY |
413 | /* UMAC doesn't support creating or joining an IBSS network |
414 | * with specified bssid. */ | |
bb9f8692 ZY |
415 | if (params->bssid) |
416 | return -EOPNOTSUPP; | |
417 | ||
bb9f8692 ZY |
418 | iwm->channel = ieee80211_frequency_to_channel(chan->center_freq); |
419 | iwm->umac_profile->ibss.band = chan->band; | |
420 | iwm->umac_profile->ibss.channel = iwm->channel; | |
421 | iwm->umac_profile->ssid.ssid_len = params->ssid_len; | |
422 | memcpy(iwm->umac_profile->ssid.ssid, params->ssid, params->ssid_len); | |
423 | ||
bb9f8692 ZY |
424 | return iwm_send_mlme_profile(iwm); |
425 | } | |
426 | ||
427 | static int iwm_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
428 | { | |
429 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
430 | ||
431 | if (iwm->umac_profile_active) | |
432 | return iwm_invalidate_mlme_profile(iwm); | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
9967d46a SO |
437 | static int iwm_set_auth_type(struct iwm_priv *iwm, |
438 | enum nl80211_auth_type sme_auth_type) | |
439 | { | |
440 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
441 | ||
442 | switch (sme_auth_type) { | |
443 | case NL80211_AUTHTYPE_AUTOMATIC: | |
444 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
445 | IWM_DBG_WEXT(iwm, DBG, "OPEN auth\n"); | |
446 | *auth_type = UMAC_AUTH_TYPE_OPEN; | |
447 | break; | |
448 | case NL80211_AUTHTYPE_SHARED_KEY: | |
449 | if (iwm->umac_profile->sec.flags & | |
450 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) { | |
451 | IWM_DBG_WEXT(iwm, DBG, "WPA auth alg\n"); | |
452 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
453 | } else { | |
454 | IWM_DBG_WEXT(iwm, DBG, "WEP shared key auth alg\n"); | |
455 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
456 | } | |
457 | ||
458 | break; | |
459 | default: | |
460 | IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", sme_auth_type); | |
461 | return -ENOTSUPP; | |
462 | } | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | static int iwm_set_wpa_version(struct iwm_priv *iwm, u32 wpa_version) | |
468 | { | |
554503f8 ZY |
469 | IWM_DBG_WEXT(iwm, DBG, "wpa_version: %d\n", wpa_version); |
470 | ||
9967d46a SO |
471 | if (!wpa_version) { |
472 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE; | |
473 | return 0; | |
474 | } | |
475 | ||
6a79c9f6 SO |
476 | if (wpa_version & NL80211_WPA_VERSION_1) |
477 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WPA_ON_MSK; | |
478 | ||
9967d46a SO |
479 | if (wpa_version & NL80211_WPA_VERSION_2) |
480 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK; | |
481 | ||
9967d46a SO |
482 | return 0; |
483 | } | |
484 | ||
485 | static int iwm_set_cipher(struct iwm_priv *iwm, u32 cipher, bool ucast) | |
486 | { | |
487 | u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher : | |
488 | &iwm->umac_profile->sec.mcast_cipher; | |
489 | ||
490 | if (!cipher) { | |
491 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
492 | return 0; | |
493 | } | |
494 | ||
554503f8 ZY |
495 | IWM_DBG_WEXT(iwm, DBG, "%ccast cipher is 0x%x\n", ucast ? 'u' : 'm', |
496 | cipher); | |
497 | ||
9967d46a SO |
498 | switch (cipher) { |
499 | case IW_AUTH_CIPHER_NONE: | |
500 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
501 | break; | |
502 | case WLAN_CIPHER_SUITE_WEP40: | |
503 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_40; | |
504 | break; | |
505 | case WLAN_CIPHER_SUITE_WEP104: | |
506 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_104; | |
507 | break; | |
508 | case WLAN_CIPHER_SUITE_TKIP: | |
509 | *profile_cipher = UMAC_CIPHER_TYPE_TKIP; | |
510 | break; | |
511 | case WLAN_CIPHER_SUITE_CCMP: | |
512 | *profile_cipher = UMAC_CIPHER_TYPE_CCMP; | |
513 | break; | |
514 | default: | |
515 | IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher); | |
516 | return -ENOTSUPP; | |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | static int iwm_set_key_mgt(struct iwm_priv *iwm, u32 key_mgt) | |
523 | { | |
524 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
525 | ||
526 | IWM_DBG_WEXT(iwm, DBG, "key_mgt: 0x%x\n", key_mgt); | |
527 | ||
528 | if (key_mgt == WLAN_AKM_SUITE_8021X) | |
529 | *auth_type = UMAC_AUTH_TYPE_8021X; | |
530 | else if (key_mgt == WLAN_AKM_SUITE_PSK) { | |
531 | if (iwm->umac_profile->sec.flags & | |
532 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) | |
533 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
534 | else | |
535 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
536 | } else { | |
537 | IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt); | |
538 | return -EINVAL; | |
539 | } | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
544 | ||
545 | static int iwm_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, | |
546 | struct cfg80211_connect_params *sme) | |
547 | { | |
548 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
549 | struct ieee80211_channel *chan = sme->channel; | |
b90a5c95 | 550 | struct key_params key_param; |
9967d46a SO |
551 | int ret; |
552 | ||
553 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
554 | return -EIO; | |
555 | ||
556 | if (!sme->ssid) | |
557 | return -EINVAL; | |
558 | ||
ae73abf2 ZY |
559 | if (iwm->umac_profile_active) { |
560 | ret = iwm_invalidate_mlme_profile(iwm); | |
561 | if (ret) { | |
562 | IWM_ERR(iwm, "Couldn't invalidate profile\n"); | |
563 | return ret; | |
564 | } | |
565 | } | |
566 | ||
9967d46a SO |
567 | if (chan) |
568 | iwm->channel = | |
569 | ieee80211_frequency_to_channel(chan->center_freq); | |
570 | ||
571 | iwm->umac_profile->ssid.ssid_len = sme->ssid_len; | |
572 | memcpy(iwm->umac_profile->ssid.ssid, sme->ssid, sme->ssid_len); | |
573 | ||
574 | if (sme->bssid) { | |
575 | IWM_DBG_WEXT(iwm, DBG, "BSSID: %pM\n", sme->bssid); | |
576 | memcpy(&iwm->umac_profile->bssid[0], sme->bssid, ETH_ALEN); | |
577 | iwm->umac_profile->bss_num = 1; | |
578 | } else { | |
579 | memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN); | |
580 | iwm->umac_profile->bss_num = 0; | |
581 | } | |
582 | ||
554503f8 | 583 | ret = iwm_set_wpa_version(iwm, sme->crypto.wpa_versions); |
9967d46a SO |
584 | if (ret < 0) |
585 | return ret; | |
586 | ||
554503f8 | 587 | ret = iwm_set_auth_type(iwm, sme->auth_type); |
9967d46a SO |
588 | if (ret < 0) |
589 | return ret; | |
590 | ||
591 | if (sme->crypto.n_ciphers_pairwise) { | |
592 | ret = iwm_set_cipher(iwm, sme->crypto.ciphers_pairwise[0], | |
593 | true); | |
594 | if (ret < 0) | |
595 | return ret; | |
596 | } | |
597 | ||
598 | ret = iwm_set_cipher(iwm, sme->crypto.cipher_group, false); | |
599 | if (ret < 0) | |
600 | return ret; | |
601 | ||
602 | if (sme->crypto.n_akm_suites) { | |
603 | ret = iwm_set_key_mgt(iwm, sme->crypto.akm_suites[0]); | |
604 | if (ret < 0) | |
605 | return ret; | |
606 | } | |
607 | ||
b90a5c95 SO |
608 | /* |
609 | * We save the WEP key in case we want to do shared authentication. | |
610 | * We have to do it so because UMAC will assert whenever it gets a | |
611 | * key before a profile. | |
612 | */ | |
613 | if (sme->key) { | |
614 | key_param.key = kmemdup(sme->key, sme->key_len, GFP_KERNEL); | |
615 | if (key_param.key == NULL) | |
616 | return -ENOMEM; | |
617 | key_param.key_len = sme->key_len; | |
618 | key_param.seq_len = 0; | |
619 | key_param.cipher = sme->crypto.ciphers_pairwise[0]; | |
620 | ||
621 | ret = iwm_key_init(&iwm->keys[sme->key_idx], sme->key_idx, | |
622 | NULL, &key_param); | |
623 | kfree(key_param.key); | |
624 | if (ret < 0) { | |
625 | IWM_ERR(iwm, "Invalid key_params\n"); | |
626 | return ret; | |
627 | } | |
628 | ||
629 | iwm->default_key = sme->key_idx; | |
630 | } | |
631 | ||
a82aedbf SO |
632 | /* WPA and open AUTH type from wpa_s means WPS (a.k.a. WSC) */ |
633 | if ((iwm->umac_profile->sec.flags & | |
634 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) && | |
635 | iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_OPEN) { | |
636 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WSC_ON_MSK; | |
637 | } | |
638 | ||
b90a5c95 SO |
639 | ret = iwm_send_mlme_profile(iwm); |
640 | ||
641 | if (iwm->umac_profile->sec.auth_type != UMAC_AUTH_TYPE_LEGACY_PSK || | |
642 | sme->key == NULL) | |
643 | return ret; | |
644 | ||
645 | /* | |
646 | * We want to do shared auth. | |
647 | * We need to actually set the key we previously cached, | |
648 | * and then tell the UMAC it's the default one. | |
649 | * That will trigger the auth+assoc UMAC machinery, and again, | |
650 | * this must be done after setting the profile. | |
651 | */ | |
652 | ret = iwm_set_key(iwm, 0, &iwm->keys[sme->key_idx]); | |
653 | if (ret < 0) | |
654 | return ret; | |
655 | ||
656 | return iwm_set_tx_key(iwm, iwm->default_key); | |
9967d46a SO |
657 | } |
658 | ||
659 | static int iwm_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, | |
660 | u16 reason_code) | |
661 | { | |
662 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
663 | ||
664 | IWM_DBG_WEXT(iwm, DBG, "Active: %d\n", iwm->umac_profile_active); | |
665 | ||
666 | if (iwm->umac_profile_active) | |
de15fd31 | 667 | iwm_invalidate_mlme_profile(iwm); |
9967d46a SO |
668 | |
669 | return 0; | |
670 | } | |
671 | ||
257862f3 ZY |
672 | static int iwm_cfg80211_set_txpower(struct wiphy *wiphy, |
673 | enum tx_power_setting type, int dbm) | |
674 | { | |
88e6195a SO |
675 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); |
676 | int ret; | |
677 | ||
257862f3 ZY |
678 | switch (type) { |
679 | case TX_POWER_AUTOMATIC: | |
680 | return 0; | |
88e6195a | 681 | case TX_POWER_FIXED: |
fe19176e SO |
682 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) |
683 | return 0; | |
684 | ||
88e6195a SO |
685 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, |
686 | CFG_TX_PWR_LIMIT_USR, dbm * 2); | |
687 | if (ret < 0) | |
688 | return ret; | |
689 | ||
690 | return iwm_tx_power_trigger(iwm); | |
257862f3 | 691 | default: |
fe19176e | 692 | IWM_ERR(iwm, "Unsupported power type: %d\n", type); |
257862f3 ZY |
693 | return -EOPNOTSUPP; |
694 | } | |
695 | ||
696 | return 0; | |
697 | } | |
698 | ||
699 | static int iwm_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) | |
700 | { | |
701 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
702 | ||
88e6195a | 703 | *dbm = iwm->txpower >> 1; |
257862f3 ZY |
704 | |
705 | return 0; | |
706 | } | |
707 | ||
bc92afd9 JB |
708 | static int iwm_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
709 | struct net_device *dev, | |
710 | bool enabled, int timeout) | |
711 | { | |
712 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
713 | u32 power_index; | |
714 | ||
715 | if (enabled) | |
716 | power_index = IWM_POWER_INDEX_DEFAULT; | |
717 | else | |
718 | power_index = IWM_POWER_INDEX_MIN; | |
719 | ||
720 | if (power_index == iwm->conf.power_index) | |
721 | return 0; | |
722 | ||
723 | iwm->conf.power_index = power_index; | |
724 | ||
725 | return iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
726 | CFG_POWER_INDEX, iwm->conf.power_index); | |
727 | } | |
728 | ||
9bf22f2c SO |
729 | int iwm_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
730 | struct cfg80211_pmksa *pmksa) | |
731 | { | |
732 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
733 | ||
734 | return iwm_send_pmkid_update(iwm, pmksa, IWM_CMD_PMKID_ADD); | |
735 | } | |
736 | ||
737 | int iwm_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, | |
738 | struct cfg80211_pmksa *pmksa) | |
739 | { | |
740 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
741 | ||
742 | return iwm_send_pmkid_update(iwm, pmksa, IWM_CMD_PMKID_DEL); | |
743 | } | |
744 | ||
745 | int iwm_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) | |
746 | { | |
747 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
748 | struct cfg80211_pmksa pmksa; | |
749 | ||
750 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
751 | ||
752 | return iwm_send_pmkid_update(iwm, &pmksa, IWM_CMD_PMKID_FLUSH); | |
753 | } | |
754 | ||
755 | ||
bb9f8692 ZY |
756 | static struct cfg80211_ops iwm_cfg80211_ops = { |
757 | .change_virtual_intf = iwm_cfg80211_change_iface, | |
13e0fe70 SO |
758 | .add_key = iwm_cfg80211_add_key, |
759 | .get_key = iwm_cfg80211_get_key, | |
760 | .del_key = iwm_cfg80211_del_key, | |
761 | .set_default_key = iwm_cfg80211_set_default_key, | |
9967d46a | 762 | .get_station = iwm_cfg80211_get_station, |
bb9f8692 ZY |
763 | .scan = iwm_cfg80211_scan, |
764 | .set_wiphy_params = iwm_cfg80211_set_wiphy_params, | |
9967d46a SO |
765 | .connect = iwm_cfg80211_connect, |
766 | .disconnect = iwm_cfg80211_disconnect, | |
bb9f8692 ZY |
767 | .join_ibss = iwm_cfg80211_join_ibss, |
768 | .leave_ibss = iwm_cfg80211_leave_ibss, | |
257862f3 ZY |
769 | .set_tx_power = iwm_cfg80211_set_txpower, |
770 | .get_tx_power = iwm_cfg80211_get_txpower, | |
bc92afd9 | 771 | .set_power_mgmt = iwm_cfg80211_set_power_mgmt, |
9bf22f2c SO |
772 | .set_pmksa = iwm_cfg80211_set_pmksa, |
773 | .del_pmksa = iwm_cfg80211_del_pmksa, | |
774 | .flush_pmksa = iwm_cfg80211_flush_pmksa, | |
bb9f8692 ZY |
775 | }; |
776 | ||
49b77727 ZY |
777 | static const u32 cipher_suites[] = { |
778 | WLAN_CIPHER_SUITE_WEP40, | |
779 | WLAN_CIPHER_SUITE_WEP104, | |
780 | WLAN_CIPHER_SUITE_TKIP, | |
781 | WLAN_CIPHER_SUITE_CCMP, | |
782 | }; | |
783 | ||
bb9f8692 ZY |
784 | struct wireless_dev *iwm_wdev_alloc(int sizeof_bus, struct device *dev) |
785 | { | |
786 | int ret = 0; | |
787 | struct wireless_dev *wdev; | |
788 | ||
789 | /* | |
790 | * We're trying to have the following memory | |
791 | * layout: | |
792 | * | |
793 | * +-------------------------+ | |
794 | * | struct wiphy | | |
795 | * +-------------------------+ | |
796 | * | struct iwm_priv | | |
797 | * +-------------------------+ | |
798 | * | bus private data | | |
799 | * | (e.g. iwm_priv_sdio) | | |
800 | * +-------------------------+ | |
801 | * | |
802 | */ | |
803 | ||
804 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
805 | if (!wdev) { | |
806 | dev_err(dev, "Couldn't allocate wireless device\n"); | |
807 | return ERR_PTR(-ENOMEM); | |
808 | } | |
809 | ||
810 | wdev->wiphy = wiphy_new(&iwm_cfg80211_ops, | |
811 | sizeof(struct iwm_priv) + sizeof_bus); | |
812 | if (!wdev->wiphy) { | |
813 | dev_err(dev, "Couldn't allocate wiphy device\n"); | |
814 | ret = -ENOMEM; | |
815 | goto out_err_new; | |
816 | } | |
817 | ||
818 | set_wiphy_dev(wdev->wiphy, dev); | |
819 | wdev->wiphy->max_scan_ssids = UMAC_WIFI_IF_PROBE_OPTION_MAX; | |
9bf22f2c | 820 | wdev->wiphy->max_num_pmkids = UMAC_MAX_NUM_PMKIDS; |
bb9f8692 ZY |
821 | wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
822 | BIT(NL80211_IFTYPE_ADHOC); | |
823 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &iwm_band_2ghz; | |
824 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &iwm_band_5ghz; | |
825 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
826 | ||
49b77727 ZY |
827 | wdev->wiphy->cipher_suites = cipher_suites; |
828 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
829 | ||
bb9f8692 ZY |
830 | ret = wiphy_register(wdev->wiphy); |
831 | if (ret < 0) { | |
832 | dev_err(dev, "Couldn't register wiphy device\n"); | |
833 | goto out_err_register; | |
834 | } | |
835 | ||
836 | return wdev; | |
837 | ||
838 | out_err_register: | |
839 | wiphy_free(wdev->wiphy); | |
840 | ||
841 | out_err_new: | |
842 | kfree(wdev); | |
843 | ||
844 | return ERR_PTR(ret); | |
845 | } | |
846 | ||
847 | void iwm_wdev_free(struct iwm_priv *iwm) | |
848 | { | |
849 | struct wireless_dev *wdev = iwm_to_wdev(iwm); | |
850 | ||
851 | if (!wdev) | |
852 | return; | |
853 | ||
854 | wiphy_unregister(wdev->wiphy); | |
855 | wiphy_free(wdev->wiphy); | |
856 | kfree(wdev); | |
857 | } |