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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 | 163 | static int iwm_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, |
e31b8213 | 164 | u8 key_index, bool pairwise, const u8 *mac_addr, |
13e0fe70 SO |
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, | |
e31b8213 JB |
184 | u8 key_index, bool pairwise, const u8 *mac_addr, |
185 | void *cookie, | |
13e0fe70 SO |
186 | void (*callback)(void *cookie, |
187 | struct key_params*)) | |
188 | { | |
189 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
190 | struct iwm_key *key = &iwm->keys[key_index]; | |
191 | struct key_params params; | |
192 | ||
193 | IWM_DBG_WEXT(iwm, DBG, "Getting key %d\n", key_index); | |
194 | ||
195 | memset(¶ms, 0, sizeof(params)); | |
196 | ||
197 | params.cipher = key->cipher; | |
198 | params.key_len = key->key_len; | |
199 | params.seq_len = key->seq_len; | |
200 | params.seq = key->seq; | |
201 | params.key = key->key; | |
202 | ||
203 | callback(cookie, ¶ms); | |
204 | ||
205 | return key->key_len ? 0 : -ENOENT; | |
206 | } | |
207 | ||
208 | ||
209 | static int iwm_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, | |
e31b8213 | 210 | u8 key_index, bool pairwise, const u8 *mac_addr) |
13e0fe70 SO |
211 | { |
212 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
213 | struct iwm_key *key = &iwm->keys[key_index]; | |
214 | ||
215 | if (!iwm->keys[key_index].key_len) { | |
216 | IWM_DBG_WEXT(iwm, DBG, "Key %d not used\n", key_index); | |
217 | return 0; | |
218 | } | |
219 | ||
220 | if (key_index == iwm->default_key) | |
221 | iwm->default_key = -1; | |
222 | ||
223 | return iwm_set_key(iwm, 1, key); | |
224 | } | |
225 | ||
226 | static int iwm_cfg80211_set_default_key(struct wiphy *wiphy, | |
227 | struct net_device *ndev, | |
dbd2fd65 JB |
228 | u8 key_index, bool unicast, |
229 | bool multicast) | |
13e0fe70 SO |
230 | { |
231 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
13e0fe70 SO |
232 | |
233 | IWM_DBG_WEXT(iwm, DBG, "Default key index is: %d\n", key_index); | |
234 | ||
235 | if (!iwm->keys[key_index].key_len) { | |
236 | IWM_ERR(iwm, "Key %d not used\n", key_index); | |
237 | return -EINVAL; | |
238 | } | |
239 | ||
35497164 SO |
240 | iwm->default_key = key_index; |
241 | ||
6e5db0a8 | 242 | return iwm_set_tx_key(iwm, key_index); |
13e0fe70 SO |
243 | } |
244 | ||
d041811d SO |
245 | static int iwm_cfg80211_get_station(struct wiphy *wiphy, |
246 | struct net_device *ndev, | |
247 | u8 *mac, struct station_info *sinfo) | |
9967d46a SO |
248 | { |
249 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
250 | ||
251 | if (memcmp(mac, iwm->bssid, ETH_ALEN)) | |
252 | return -ENOENT; | |
253 | ||
254 | sinfo->filled |= STATION_INFO_TX_BITRATE; | |
255 | sinfo->txrate.legacy = iwm->rate * 10; | |
256 | ||
257 | if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) { | |
258 | sinfo->filled |= STATION_INFO_SIGNAL; | |
259 | sinfo->signal = iwm->wstats.qual.level; | |
260 | } | |
261 | ||
262 | return 0; | |
263 | } | |
264 | ||
13e0fe70 | 265 | |
bb9f8692 ZY |
266 | int iwm_cfg80211_inform_bss(struct iwm_priv *iwm) |
267 | { | |
268 | struct wiphy *wiphy = iwm_to_wiphy(iwm); | |
04d1c227 | 269 | struct iwm_bss_info *bss; |
bb9f8692 ZY |
270 | struct iwm_umac_notif_bss_info *umac_bss; |
271 | struct ieee80211_mgmt *mgmt; | |
272 | struct ieee80211_channel *channel; | |
273 | struct ieee80211_supported_band *band; | |
274 | s32 signal; | |
275 | int freq; | |
276 | ||
04d1c227 | 277 | list_for_each_entry(bss, &iwm->bss_list, node) { |
bb9f8692 ZY |
278 | umac_bss = bss->bss; |
279 | mgmt = (struct ieee80211_mgmt *)(umac_bss->frame_buf); | |
280 | ||
281 | if (umac_bss->band == UMAC_BAND_2GHZ) | |
282 | band = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
283 | else if (umac_bss->band == UMAC_BAND_5GHZ) | |
284 | band = wiphy->bands[IEEE80211_BAND_5GHZ]; | |
285 | else { | |
286 | IWM_ERR(iwm, "Invalid band: %d\n", umac_bss->band); | |
287 | return -EINVAL; | |
288 | } | |
289 | ||
290 | freq = ieee80211_channel_to_frequency(umac_bss->channel); | |
291 | channel = ieee80211_get_channel(wiphy, freq); | |
292 | signal = umac_bss->rssi * 100; | |
293 | ||
294 | if (!cfg80211_inform_bss_frame(wiphy, channel, mgmt, | |
295 | le16_to_cpu(umac_bss->frame_len), | |
296 | signal, GFP_KERNEL)) | |
297 | return -EINVAL; | |
298 | } | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
e36d56b6 JB |
303 | static int iwm_cfg80211_change_iface(struct wiphy *wiphy, |
304 | struct net_device *ndev, | |
bb9f8692 ZY |
305 | enum nl80211_iftype type, u32 *flags, |
306 | struct vif_params *params) | |
307 | { | |
bb9f8692 ZY |
308 | struct wireless_dev *wdev; |
309 | struct iwm_priv *iwm; | |
310 | u32 old_mode; | |
311 | ||
bb9f8692 ZY |
312 | wdev = ndev->ieee80211_ptr; |
313 | iwm = ndev_to_iwm(ndev); | |
314 | old_mode = iwm->conf.mode; | |
315 | ||
316 | switch (type) { | |
317 | case NL80211_IFTYPE_STATION: | |
318 | iwm->conf.mode = UMAC_MODE_BSS; | |
319 | break; | |
320 | case NL80211_IFTYPE_ADHOC: | |
321 | iwm->conf.mode = UMAC_MODE_IBSS; | |
322 | break; | |
323 | default: | |
324 | return -EOPNOTSUPP; | |
325 | } | |
326 | ||
327 | wdev->iftype = type; | |
328 | ||
329 | if ((old_mode == iwm->conf.mode) || !iwm->umac_profile) | |
330 | return 0; | |
331 | ||
332 | iwm->umac_profile->mode = cpu_to_le32(iwm->conf.mode); | |
333 | ||
ae73abf2 ZY |
334 | if (iwm->umac_profile_active) |
335 | iwm_invalidate_mlme_profile(iwm); | |
bb9f8692 ZY |
336 | |
337 | return 0; | |
338 | } | |
339 | ||
340 | static int iwm_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, | |
341 | struct cfg80211_scan_request *request) | |
342 | { | |
343 | struct iwm_priv *iwm = ndev_to_iwm(ndev); | |
344 | int ret; | |
345 | ||
346 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) { | |
347 | IWM_ERR(iwm, "Scan while device is not ready\n"); | |
348 | return -EIO; | |
349 | } | |
350 | ||
351 | if (test_bit(IWM_STATUS_SCANNING, &iwm->status)) { | |
352 | IWM_ERR(iwm, "Scanning already\n"); | |
353 | return -EAGAIN; | |
354 | } | |
355 | ||
356 | if (test_bit(IWM_STATUS_SCAN_ABORTING, &iwm->status)) { | |
357 | IWM_ERR(iwm, "Scanning being aborted\n"); | |
358 | return -EAGAIN; | |
359 | } | |
360 | ||
361 | set_bit(IWM_STATUS_SCANNING, &iwm->status); | |
362 | ||
363 | ret = iwm_scan_ssids(iwm, request->ssids, request->n_ssids); | |
364 | if (ret) { | |
365 | clear_bit(IWM_STATUS_SCANNING, &iwm->status); | |
366 | return ret; | |
367 | } | |
368 | ||
369 | iwm->scan_request = request; | |
370 | return 0; | |
371 | } | |
372 | ||
373 | static int iwm_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
374 | { | |
375 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
376 | ||
377 | if (changed & WIPHY_PARAM_RTS_THRESHOLD && | |
378 | (iwm->conf.rts_threshold != wiphy->rts_threshold)) { | |
379 | int ret; | |
380 | ||
381 | iwm->conf.rts_threshold = wiphy->rts_threshold; | |
382 | ||
383 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
384 | CFG_RTS_THRESHOLD, | |
385 | iwm->conf.rts_threshold); | |
386 | if (ret < 0) | |
387 | return ret; | |
388 | } | |
389 | ||
390 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD && | |
391 | (iwm->conf.frag_threshold != wiphy->frag_threshold)) { | |
392 | int ret; | |
393 | ||
394 | iwm->conf.frag_threshold = wiphy->frag_threshold; | |
395 | ||
b63b0ea2 | 396 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX, |
bb9f8692 ZY |
397 | CFG_FRAG_THRESHOLD, |
398 | iwm->conf.frag_threshold); | |
399 | if (ret < 0) | |
400 | return ret; | |
401 | } | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int iwm_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
407 | struct cfg80211_ibss_params *params) | |
408 | { | |
409 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
410 | struct ieee80211_channel *chan = params->channel; | |
bb9f8692 ZY |
411 | |
412 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
413 | return -EIO; | |
414 | ||
03d1a62c ZY |
415 | /* UMAC doesn't support creating or joining an IBSS network |
416 | * with specified bssid. */ | |
bb9f8692 ZY |
417 | if (params->bssid) |
418 | return -EOPNOTSUPP; | |
419 | ||
bb9f8692 ZY |
420 | iwm->channel = ieee80211_frequency_to_channel(chan->center_freq); |
421 | iwm->umac_profile->ibss.band = chan->band; | |
422 | iwm->umac_profile->ibss.channel = iwm->channel; | |
423 | iwm->umac_profile->ssid.ssid_len = params->ssid_len; | |
424 | memcpy(iwm->umac_profile->ssid.ssid, params->ssid, params->ssid_len); | |
425 | ||
bb9f8692 ZY |
426 | return iwm_send_mlme_profile(iwm); |
427 | } | |
428 | ||
429 | static int iwm_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
430 | { | |
431 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
432 | ||
433 | if (iwm->umac_profile_active) | |
434 | return iwm_invalidate_mlme_profile(iwm); | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
9967d46a SO |
439 | static int iwm_set_auth_type(struct iwm_priv *iwm, |
440 | enum nl80211_auth_type sme_auth_type) | |
441 | { | |
442 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
443 | ||
444 | switch (sme_auth_type) { | |
445 | case NL80211_AUTHTYPE_AUTOMATIC: | |
446 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
447 | IWM_DBG_WEXT(iwm, DBG, "OPEN auth\n"); | |
448 | *auth_type = UMAC_AUTH_TYPE_OPEN; | |
449 | break; | |
450 | case NL80211_AUTHTYPE_SHARED_KEY: | |
451 | if (iwm->umac_profile->sec.flags & | |
452 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) { | |
453 | IWM_DBG_WEXT(iwm, DBG, "WPA auth alg\n"); | |
454 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
455 | } else { | |
456 | IWM_DBG_WEXT(iwm, DBG, "WEP shared key auth alg\n"); | |
457 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
458 | } | |
459 | ||
460 | break; | |
461 | default: | |
462 | IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", sme_auth_type); | |
463 | return -ENOTSUPP; | |
464 | } | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
469 | static int iwm_set_wpa_version(struct iwm_priv *iwm, u32 wpa_version) | |
470 | { | |
554503f8 ZY |
471 | IWM_DBG_WEXT(iwm, DBG, "wpa_version: %d\n", wpa_version); |
472 | ||
9967d46a SO |
473 | if (!wpa_version) { |
474 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE; | |
475 | return 0; | |
476 | } | |
477 | ||
6a79c9f6 SO |
478 | if (wpa_version & NL80211_WPA_VERSION_1) |
479 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WPA_ON_MSK; | |
480 | ||
9967d46a SO |
481 | if (wpa_version & NL80211_WPA_VERSION_2) |
482 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK; | |
483 | ||
9967d46a SO |
484 | return 0; |
485 | } | |
486 | ||
487 | static int iwm_set_cipher(struct iwm_priv *iwm, u32 cipher, bool ucast) | |
488 | { | |
489 | u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher : | |
490 | &iwm->umac_profile->sec.mcast_cipher; | |
491 | ||
492 | if (!cipher) { | |
493 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
494 | return 0; | |
495 | } | |
496 | ||
554503f8 ZY |
497 | IWM_DBG_WEXT(iwm, DBG, "%ccast cipher is 0x%x\n", ucast ? 'u' : 'm', |
498 | cipher); | |
499 | ||
9967d46a SO |
500 | switch (cipher) { |
501 | case IW_AUTH_CIPHER_NONE: | |
502 | *profile_cipher = UMAC_CIPHER_TYPE_NONE; | |
503 | break; | |
504 | case WLAN_CIPHER_SUITE_WEP40: | |
505 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_40; | |
506 | break; | |
507 | case WLAN_CIPHER_SUITE_WEP104: | |
508 | *profile_cipher = UMAC_CIPHER_TYPE_WEP_104; | |
509 | break; | |
510 | case WLAN_CIPHER_SUITE_TKIP: | |
511 | *profile_cipher = UMAC_CIPHER_TYPE_TKIP; | |
512 | break; | |
513 | case WLAN_CIPHER_SUITE_CCMP: | |
514 | *profile_cipher = UMAC_CIPHER_TYPE_CCMP; | |
515 | break; | |
516 | default: | |
517 | IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher); | |
518 | return -ENOTSUPP; | |
519 | } | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static int iwm_set_key_mgt(struct iwm_priv *iwm, u32 key_mgt) | |
525 | { | |
526 | u8 *auth_type = &iwm->umac_profile->sec.auth_type; | |
527 | ||
528 | IWM_DBG_WEXT(iwm, DBG, "key_mgt: 0x%x\n", key_mgt); | |
529 | ||
530 | if (key_mgt == WLAN_AKM_SUITE_8021X) | |
531 | *auth_type = UMAC_AUTH_TYPE_8021X; | |
532 | else if (key_mgt == WLAN_AKM_SUITE_PSK) { | |
533 | if (iwm->umac_profile->sec.flags & | |
534 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) | |
535 | *auth_type = UMAC_AUTH_TYPE_RSNA_PSK; | |
536 | else | |
537 | *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK; | |
538 | } else { | |
539 | IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt); | |
540 | return -EINVAL; | |
541 | } | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | ||
547 | static int iwm_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, | |
548 | struct cfg80211_connect_params *sme) | |
549 | { | |
550 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
551 | struct ieee80211_channel *chan = sme->channel; | |
b90a5c95 | 552 | struct key_params key_param; |
9967d46a SO |
553 | int ret; |
554 | ||
555 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) | |
556 | return -EIO; | |
557 | ||
558 | if (!sme->ssid) | |
559 | return -EINVAL; | |
560 | ||
ae73abf2 ZY |
561 | if (iwm->umac_profile_active) { |
562 | ret = iwm_invalidate_mlme_profile(iwm); | |
563 | if (ret) { | |
564 | IWM_ERR(iwm, "Couldn't invalidate profile\n"); | |
565 | return ret; | |
566 | } | |
567 | } | |
568 | ||
9967d46a SO |
569 | if (chan) |
570 | iwm->channel = | |
571 | ieee80211_frequency_to_channel(chan->center_freq); | |
572 | ||
573 | iwm->umac_profile->ssid.ssid_len = sme->ssid_len; | |
574 | memcpy(iwm->umac_profile->ssid.ssid, sme->ssid, sme->ssid_len); | |
575 | ||
576 | if (sme->bssid) { | |
577 | IWM_DBG_WEXT(iwm, DBG, "BSSID: %pM\n", sme->bssid); | |
578 | memcpy(&iwm->umac_profile->bssid[0], sme->bssid, ETH_ALEN); | |
579 | iwm->umac_profile->bss_num = 1; | |
580 | } else { | |
581 | memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN); | |
582 | iwm->umac_profile->bss_num = 0; | |
583 | } | |
584 | ||
554503f8 | 585 | ret = iwm_set_wpa_version(iwm, sme->crypto.wpa_versions); |
9967d46a SO |
586 | if (ret < 0) |
587 | return ret; | |
588 | ||
554503f8 | 589 | ret = iwm_set_auth_type(iwm, sme->auth_type); |
9967d46a SO |
590 | if (ret < 0) |
591 | return ret; | |
592 | ||
593 | if (sme->crypto.n_ciphers_pairwise) { | |
594 | ret = iwm_set_cipher(iwm, sme->crypto.ciphers_pairwise[0], | |
595 | true); | |
596 | if (ret < 0) | |
597 | return ret; | |
598 | } | |
599 | ||
600 | ret = iwm_set_cipher(iwm, sme->crypto.cipher_group, false); | |
601 | if (ret < 0) | |
602 | return ret; | |
603 | ||
604 | if (sme->crypto.n_akm_suites) { | |
605 | ret = iwm_set_key_mgt(iwm, sme->crypto.akm_suites[0]); | |
606 | if (ret < 0) | |
607 | return ret; | |
608 | } | |
609 | ||
b90a5c95 SO |
610 | /* |
611 | * We save the WEP key in case we want to do shared authentication. | |
612 | * We have to do it so because UMAC will assert whenever it gets a | |
613 | * key before a profile. | |
614 | */ | |
615 | if (sme->key) { | |
616 | key_param.key = kmemdup(sme->key, sme->key_len, GFP_KERNEL); | |
617 | if (key_param.key == NULL) | |
618 | return -ENOMEM; | |
619 | key_param.key_len = sme->key_len; | |
620 | key_param.seq_len = 0; | |
621 | key_param.cipher = sme->crypto.ciphers_pairwise[0]; | |
622 | ||
623 | ret = iwm_key_init(&iwm->keys[sme->key_idx], sme->key_idx, | |
624 | NULL, &key_param); | |
625 | kfree(key_param.key); | |
626 | if (ret < 0) { | |
627 | IWM_ERR(iwm, "Invalid key_params\n"); | |
628 | return ret; | |
629 | } | |
630 | ||
631 | iwm->default_key = sme->key_idx; | |
632 | } | |
633 | ||
a82aedbf SO |
634 | /* WPA and open AUTH type from wpa_s means WPS (a.k.a. WSC) */ |
635 | if ((iwm->umac_profile->sec.flags & | |
636 | (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) && | |
637 | iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_OPEN) { | |
638 | iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WSC_ON_MSK; | |
639 | } | |
640 | ||
b90a5c95 SO |
641 | ret = iwm_send_mlme_profile(iwm); |
642 | ||
643 | if (iwm->umac_profile->sec.auth_type != UMAC_AUTH_TYPE_LEGACY_PSK || | |
644 | sme->key == NULL) | |
645 | return ret; | |
646 | ||
647 | /* | |
648 | * We want to do shared auth. | |
649 | * We need to actually set the key we previously cached, | |
650 | * and then tell the UMAC it's the default one. | |
651 | * That will trigger the auth+assoc UMAC machinery, and again, | |
652 | * this must be done after setting the profile. | |
653 | */ | |
654 | ret = iwm_set_key(iwm, 0, &iwm->keys[sme->key_idx]); | |
655 | if (ret < 0) | |
656 | return ret; | |
657 | ||
658 | return iwm_set_tx_key(iwm, iwm->default_key); | |
9967d46a SO |
659 | } |
660 | ||
661 | static int iwm_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, | |
662 | u16 reason_code) | |
663 | { | |
664 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
665 | ||
666 | IWM_DBG_WEXT(iwm, DBG, "Active: %d\n", iwm->umac_profile_active); | |
667 | ||
668 | if (iwm->umac_profile_active) | |
de15fd31 | 669 | iwm_invalidate_mlme_profile(iwm); |
9967d46a SO |
670 | |
671 | return 0; | |
672 | } | |
673 | ||
257862f3 | 674 | static int iwm_cfg80211_set_txpower(struct wiphy *wiphy, |
fa61cf70 | 675 | enum nl80211_tx_power_setting type, int mbm) |
257862f3 | 676 | { |
88e6195a SO |
677 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); |
678 | int ret; | |
679 | ||
257862f3 | 680 | switch (type) { |
fa61cf70 | 681 | case NL80211_TX_POWER_AUTOMATIC: |
257862f3 | 682 | return 0; |
fa61cf70 JO |
683 | case NL80211_TX_POWER_FIXED: |
684 | if (mbm < 0 || (mbm % 100)) | |
685 | return -EOPNOTSUPP; | |
686 | ||
fe19176e SO |
687 | if (!test_bit(IWM_STATUS_READY, &iwm->status)) |
688 | return 0; | |
689 | ||
88e6195a | 690 | ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, |
fa61cf70 JO |
691 | CFG_TX_PWR_LIMIT_USR, |
692 | MBM_TO_DBM(mbm) * 2); | |
88e6195a SO |
693 | if (ret < 0) |
694 | return ret; | |
695 | ||
696 | return iwm_tx_power_trigger(iwm); | |
257862f3 | 697 | default: |
fe19176e | 698 | IWM_ERR(iwm, "Unsupported power type: %d\n", type); |
257862f3 ZY |
699 | return -EOPNOTSUPP; |
700 | } | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
705 | static int iwm_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) | |
706 | { | |
707 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
708 | ||
88e6195a | 709 | *dbm = iwm->txpower >> 1; |
257862f3 ZY |
710 | |
711 | return 0; | |
712 | } | |
713 | ||
bc92afd9 JB |
714 | static int iwm_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
715 | struct net_device *dev, | |
716 | bool enabled, int timeout) | |
717 | { | |
718 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
719 | u32 power_index; | |
720 | ||
721 | if (enabled) | |
722 | power_index = IWM_POWER_INDEX_DEFAULT; | |
723 | else | |
724 | power_index = IWM_POWER_INDEX_MIN; | |
725 | ||
726 | if (power_index == iwm->conf.power_index) | |
727 | return 0; | |
728 | ||
729 | iwm->conf.power_index = power_index; | |
730 | ||
731 | return iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX, | |
732 | CFG_POWER_INDEX, iwm->conf.power_index); | |
733 | } | |
734 | ||
d281fd46 ZY |
735 | static int iwm_cfg80211_set_pmksa(struct wiphy *wiphy, |
736 | struct net_device *netdev, | |
737 | struct cfg80211_pmksa *pmksa) | |
9bf22f2c SO |
738 | { |
739 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
740 | ||
741 | return iwm_send_pmkid_update(iwm, pmksa, IWM_CMD_PMKID_ADD); | |
742 | } | |
743 | ||
d281fd46 ZY |
744 | static int iwm_cfg80211_del_pmksa(struct wiphy *wiphy, |
745 | struct net_device *netdev, | |
746 | struct cfg80211_pmksa *pmksa) | |
9bf22f2c SO |
747 | { |
748 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
749 | ||
750 | return iwm_send_pmkid_update(iwm, pmksa, IWM_CMD_PMKID_DEL); | |
751 | } | |
752 | ||
d281fd46 ZY |
753 | static int iwm_cfg80211_flush_pmksa(struct wiphy *wiphy, |
754 | struct net_device *netdev) | |
9bf22f2c SO |
755 | { |
756 | struct iwm_priv *iwm = wiphy_to_iwm(wiphy); | |
757 | struct cfg80211_pmksa pmksa; | |
758 | ||
759 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
760 | ||
761 | return iwm_send_pmkid_update(iwm, &pmksa, IWM_CMD_PMKID_FLUSH); | |
762 | } | |
763 | ||
764 | ||
bb9f8692 ZY |
765 | static struct cfg80211_ops iwm_cfg80211_ops = { |
766 | .change_virtual_intf = iwm_cfg80211_change_iface, | |
13e0fe70 SO |
767 | .add_key = iwm_cfg80211_add_key, |
768 | .get_key = iwm_cfg80211_get_key, | |
769 | .del_key = iwm_cfg80211_del_key, | |
770 | .set_default_key = iwm_cfg80211_set_default_key, | |
9967d46a | 771 | .get_station = iwm_cfg80211_get_station, |
bb9f8692 ZY |
772 | .scan = iwm_cfg80211_scan, |
773 | .set_wiphy_params = iwm_cfg80211_set_wiphy_params, | |
9967d46a SO |
774 | .connect = iwm_cfg80211_connect, |
775 | .disconnect = iwm_cfg80211_disconnect, | |
bb9f8692 ZY |
776 | .join_ibss = iwm_cfg80211_join_ibss, |
777 | .leave_ibss = iwm_cfg80211_leave_ibss, | |
257862f3 ZY |
778 | .set_tx_power = iwm_cfg80211_set_txpower, |
779 | .get_tx_power = iwm_cfg80211_get_txpower, | |
bc92afd9 | 780 | .set_power_mgmt = iwm_cfg80211_set_power_mgmt, |
9bf22f2c SO |
781 | .set_pmksa = iwm_cfg80211_set_pmksa, |
782 | .del_pmksa = iwm_cfg80211_del_pmksa, | |
783 | .flush_pmksa = iwm_cfg80211_flush_pmksa, | |
bb9f8692 ZY |
784 | }; |
785 | ||
49b77727 ZY |
786 | static const u32 cipher_suites[] = { |
787 | WLAN_CIPHER_SUITE_WEP40, | |
788 | WLAN_CIPHER_SUITE_WEP104, | |
789 | WLAN_CIPHER_SUITE_TKIP, | |
790 | WLAN_CIPHER_SUITE_CCMP, | |
791 | }; | |
792 | ||
bb9f8692 ZY |
793 | struct wireless_dev *iwm_wdev_alloc(int sizeof_bus, struct device *dev) |
794 | { | |
795 | int ret = 0; | |
796 | struct wireless_dev *wdev; | |
797 | ||
798 | /* | |
799 | * We're trying to have the following memory | |
800 | * layout: | |
801 | * | |
802 | * +-------------------------+ | |
803 | * | struct wiphy | | |
804 | * +-------------------------+ | |
805 | * | struct iwm_priv | | |
806 | * +-------------------------+ | |
807 | * | bus private data | | |
808 | * | (e.g. iwm_priv_sdio) | | |
809 | * +-------------------------+ | |
810 | * | |
811 | */ | |
812 | ||
813 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
814 | if (!wdev) { | |
815 | dev_err(dev, "Couldn't allocate wireless device\n"); | |
816 | return ERR_PTR(-ENOMEM); | |
817 | } | |
818 | ||
819 | wdev->wiphy = wiphy_new(&iwm_cfg80211_ops, | |
820 | sizeof(struct iwm_priv) + sizeof_bus); | |
821 | if (!wdev->wiphy) { | |
822 | dev_err(dev, "Couldn't allocate wiphy device\n"); | |
823 | ret = -ENOMEM; | |
824 | goto out_err_new; | |
825 | } | |
826 | ||
827 | set_wiphy_dev(wdev->wiphy, dev); | |
828 | wdev->wiphy->max_scan_ssids = UMAC_WIFI_IF_PROBE_OPTION_MAX; | |
9bf22f2c | 829 | wdev->wiphy->max_num_pmkids = UMAC_MAX_NUM_PMKIDS; |
bb9f8692 ZY |
830 | wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
831 | BIT(NL80211_IFTYPE_ADHOC); | |
832 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &iwm_band_2ghz; | |
833 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &iwm_band_5ghz; | |
834 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
835 | ||
49b77727 ZY |
836 | wdev->wiphy->cipher_suites = cipher_suites; |
837 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
838 | ||
bb9f8692 ZY |
839 | ret = wiphy_register(wdev->wiphy); |
840 | if (ret < 0) { | |
841 | dev_err(dev, "Couldn't register wiphy device\n"); | |
842 | goto out_err_register; | |
843 | } | |
844 | ||
845 | return wdev; | |
846 | ||
847 | out_err_register: | |
848 | wiphy_free(wdev->wiphy); | |
849 | ||
850 | out_err_new: | |
851 | kfree(wdev); | |
852 | ||
853 | return ERR_PTR(ret); | |
854 | } | |
855 | ||
856 | void iwm_wdev_free(struct iwm_priv *iwm) | |
857 | { | |
858 | struct wireless_dev *wdev = iwm_to_wdev(iwm); | |
859 | ||
860 | if (!wdev) | |
861 | return; | |
862 | ||
863 | wiphy_unregister(wdev->wiphy); | |
864 | wiphy_free(wdev->wiphy); | |
865 | kfree(wdev); | |
866 | } |