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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: CFG80211 | |
3 | * | |
4 | * Copyright (C) 2011, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "cfg80211.h" | |
21 | #include "main.h" | |
22 | ||
23 | /* | |
24 | * This function maps the nl802.11 channel type into driver channel type. | |
25 | * | |
26 | * The mapping is as follows - | |
27 | * NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL | |
28 | * NL80211_CHAN_HT20 -> NO_SEC_CHANNEL | |
29 | * NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE | |
30 | * NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW | |
31 | * Others -> NO_SEC_CHANNEL | |
32 | */ | |
33 | static int | |
34 | mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type | |
35 | channel_type) | |
36 | { | |
5e6e3a92 BZ |
37 | switch (channel_type) { |
38 | case NL80211_CHAN_NO_HT: | |
39 | case NL80211_CHAN_HT20: | |
636c4598 | 40 | return NO_SEC_CHANNEL; |
5e6e3a92 | 41 | case NL80211_CHAN_HT40PLUS: |
636c4598 | 42 | return SEC_CHANNEL_ABOVE; |
5e6e3a92 | 43 | case NL80211_CHAN_HT40MINUS: |
636c4598 | 44 | return SEC_CHANNEL_BELOW; |
5e6e3a92 | 45 | default: |
636c4598 | 46 | return NO_SEC_CHANNEL; |
5e6e3a92 | 47 | } |
5e6e3a92 BZ |
48 | } |
49 | ||
50 | /* | |
51 | * This function maps the driver channel type into nl802.11 channel type. | |
52 | * | |
53 | * The mapping is as follows - | |
54 | * NO_SEC_CHANNEL -> NL80211_CHAN_HT20 | |
55 | * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS | |
56 | * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS | |
57 | * Others -> NL80211_CHAN_HT20 | |
58 | */ | |
59 | static enum nl80211_channel_type | |
60 | mwifiex_channels_to_cfg80211_channel_type(int channel_type) | |
61 | { | |
5e6e3a92 BZ |
62 | switch (channel_type) { |
63 | case NO_SEC_CHANNEL: | |
636c4598 | 64 | return NL80211_CHAN_HT20; |
5e6e3a92 | 65 | case SEC_CHANNEL_ABOVE: |
636c4598 | 66 | return NL80211_CHAN_HT40PLUS; |
5e6e3a92 | 67 | case SEC_CHANNEL_BELOW: |
636c4598 | 68 | return NL80211_CHAN_HT40MINUS; |
5e6e3a92 | 69 | default: |
636c4598 | 70 | return NL80211_CHAN_HT20; |
5e6e3a92 | 71 | } |
5e6e3a92 BZ |
72 | } |
73 | ||
74 | /* | |
75 | * This function checks whether WEP is set. | |
76 | */ | |
77 | static int | |
78 | mwifiex_is_alg_wep(u32 cipher) | |
79 | { | |
5e6e3a92 | 80 | switch (cipher) { |
2be50b8d YAP |
81 | case WLAN_CIPHER_SUITE_WEP40: |
82 | case WLAN_CIPHER_SUITE_WEP104: | |
270e58e8 | 83 | return 1; |
5e6e3a92 | 84 | default: |
5e6e3a92 BZ |
85 | break; |
86 | } | |
270e58e8 YAP |
87 | |
88 | return 0; | |
5e6e3a92 BZ |
89 | } |
90 | ||
5e6e3a92 BZ |
91 | /* |
92 | * This function retrieves the private structure from kernel wiphy structure. | |
93 | */ | |
94 | static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy) | |
95 | { | |
96 | return (void *) (*(unsigned long *) wiphy_priv(wiphy)); | |
97 | } | |
98 | ||
99 | /* | |
100 | * CFG802.11 operation handler to delete a network key. | |
101 | */ | |
102 | static int | |
103 | mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, | |
104 | u8 key_index, bool pairwise, const u8 *mac_addr) | |
105 | { | |
106 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
5e6e3a92 | 107 | |
636c4598 | 108 | if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) { |
5e6e3a92 BZ |
109 | wiphy_err(wiphy, "deleting the crypto keys\n"); |
110 | return -EFAULT; | |
111 | } | |
112 | ||
113 | wiphy_dbg(wiphy, "info: crypto keys deleted\n"); | |
114 | return 0; | |
115 | } | |
116 | ||
117 | /* | |
118 | * CFG802.11 operation handler to set Tx power. | |
119 | */ | |
120 | static int | |
121 | mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, | |
122 | enum nl80211_tx_power_setting type, | |
123 | int dbm) | |
124 | { | |
5e6e3a92 | 125 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
600f5d90 | 126 | struct mwifiex_power_cfg power_cfg; |
5e6e3a92 | 127 | |
600f5d90 AK |
128 | if (type == NL80211_TX_POWER_FIXED) { |
129 | power_cfg.is_power_auto = 0; | |
130 | power_cfg.power_level = dbm; | |
131 | } else { | |
132 | power_cfg.is_power_auto = 1; | |
133 | } | |
134 | ||
636c4598 | 135 | return mwifiex_set_tx_power(priv, &power_cfg); |
5e6e3a92 BZ |
136 | } |
137 | ||
138 | /* | |
139 | * CFG802.11 operation handler to set Power Save option. | |
140 | * | |
141 | * The timeout value, if provided, is currently ignored. | |
142 | */ | |
143 | static int | |
144 | mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, | |
145 | struct net_device *dev, | |
146 | bool enabled, int timeout) | |
147 | { | |
5e6e3a92 | 148 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
600f5d90 | 149 | u32 ps_mode; |
5e6e3a92 BZ |
150 | |
151 | if (timeout) | |
152 | wiphy_dbg(wiphy, | |
153 | "info: ignoring the timeout value" | |
154 | " for IEEE power save\n"); | |
155 | ||
600f5d90 | 156 | ps_mode = enabled; |
5e6e3a92 | 157 | |
636c4598 | 158 | return mwifiex_drv_set_power(priv, &ps_mode); |
5e6e3a92 BZ |
159 | } |
160 | ||
161 | /* | |
162 | * CFG802.11 operation handler to set the default network key. | |
163 | */ | |
164 | static int | |
165 | mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, | |
166 | u8 key_index, bool unicast, | |
167 | bool multicast) | |
168 | { | |
169 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
5e6e3a92 | 170 | |
2d3d0a88 AK |
171 | /* Return if WEP key not configured */ |
172 | if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED) | |
173 | return 0; | |
174 | ||
636c4598 YAP |
175 | if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) { |
176 | wiphy_err(wiphy, "set default Tx key index\n"); | |
5e6e3a92 | 177 | return -EFAULT; |
636c4598 | 178 | } |
5e6e3a92 BZ |
179 | |
180 | return 0; | |
181 | } | |
182 | ||
183 | /* | |
184 | * CFG802.11 operation handler to add a network key. | |
185 | */ | |
186 | static int | |
187 | mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, | |
188 | u8 key_index, bool pairwise, const u8 *mac_addr, | |
189 | struct key_params *params) | |
190 | { | |
191 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
5e6e3a92 | 192 | |
636c4598 YAP |
193 | if (mwifiex_set_encode(priv, params->key, params->key_len, |
194 | key_index, 0)) { | |
195 | wiphy_err(wiphy, "crypto keys added\n"); | |
5e6e3a92 | 196 | return -EFAULT; |
636c4598 | 197 | } |
5e6e3a92 BZ |
198 | |
199 | return 0; | |
200 | } | |
201 | ||
202 | /* | |
203 | * This function sends domain information to the firmware. | |
204 | * | |
205 | * The following information are passed to the firmware - | |
206 | * - Country codes | |
207 | * - Sub bands (first channel, number of channels, maximum Tx power) | |
208 | */ | |
209 | static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) | |
210 | { | |
211 | u8 no_of_triplet = 0; | |
212 | struct ieee80211_country_ie_triplet *t; | |
213 | u8 no_of_parsed_chan = 0; | |
214 | u8 first_chan = 0, next_chan = 0, max_pwr = 0; | |
215 | u8 i, flag = 0; | |
216 | enum ieee80211_band band; | |
217 | struct ieee80211_supported_band *sband; | |
218 | struct ieee80211_channel *ch; | |
219 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
220 | struct mwifiex_adapter *adapter = priv->adapter; | |
221 | struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; | |
5e6e3a92 BZ |
222 | |
223 | /* Set country code */ | |
224 | domain_info->country_code[0] = priv->country_code[0]; | |
225 | domain_info->country_code[1] = priv->country_code[1]; | |
226 | domain_info->country_code[2] = ' '; | |
227 | ||
228 | band = mwifiex_band_to_radio_type(adapter->config_bands); | |
229 | if (!wiphy->bands[band]) { | |
230 | wiphy_err(wiphy, "11D: setting domain info in FW\n"); | |
231 | return -1; | |
232 | } | |
233 | ||
234 | sband = wiphy->bands[band]; | |
235 | ||
236 | for (i = 0; i < sband->n_channels ; i++) { | |
237 | ch = &sband->channels[i]; | |
238 | if (ch->flags & IEEE80211_CHAN_DISABLED) | |
239 | continue; | |
240 | ||
241 | if (!flag) { | |
242 | flag = 1; | |
243 | first_chan = (u32) ch->hw_value; | |
244 | next_chan = first_chan; | |
245 | max_pwr = ch->max_power; | |
246 | no_of_parsed_chan = 1; | |
247 | continue; | |
248 | } | |
249 | ||
250 | if (ch->hw_value == next_chan + 1 && | |
251 | ch->max_power == max_pwr) { | |
252 | next_chan++; | |
253 | no_of_parsed_chan++; | |
254 | } else { | |
255 | t = &domain_info->triplet[no_of_triplet]; | |
256 | t->chans.first_channel = first_chan; | |
257 | t->chans.num_channels = no_of_parsed_chan; | |
258 | t->chans.max_power = max_pwr; | |
259 | no_of_triplet++; | |
260 | first_chan = (u32) ch->hw_value; | |
261 | next_chan = first_chan; | |
262 | max_pwr = ch->max_power; | |
263 | no_of_parsed_chan = 1; | |
264 | } | |
265 | } | |
266 | ||
267 | if (flag) { | |
268 | t = &domain_info->triplet[no_of_triplet]; | |
269 | t->chans.first_channel = first_chan; | |
270 | t->chans.num_channels = no_of_parsed_chan; | |
271 | t->chans.max_power = max_pwr; | |
272 | no_of_triplet++; | |
273 | } | |
274 | ||
275 | domain_info->no_of_triplet = no_of_triplet; | |
636c4598 YAP |
276 | |
277 | if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, | |
278 | HostCmd_ACT_GEN_SET, 0, NULL)) { | |
5e6e3a92 | 279 | wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
636c4598 YAP |
280 | return -1; |
281 | } | |
5e6e3a92 | 282 | |
636c4598 | 283 | return 0; |
5e6e3a92 BZ |
284 | } |
285 | ||
286 | /* | |
287 | * CFG802.11 regulatory domain callback function. | |
288 | * | |
289 | * This function is called when the regulatory domain is changed due to the | |
290 | * following reasons - | |
291 | * - Set by driver | |
292 | * - Set by system core | |
293 | * - Set by user | |
294 | * - Set bt Country IE | |
295 | */ | |
296 | static int mwifiex_reg_notifier(struct wiphy *wiphy, | |
297 | struct regulatory_request *request) | |
298 | { | |
299 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
300 | ||
301 | wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain" | |
302 | " %c%c\n", request->alpha2[0], request->alpha2[1]); | |
303 | ||
304 | memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2)); | |
305 | ||
306 | switch (request->initiator) { | |
307 | case NL80211_REGDOM_SET_BY_DRIVER: | |
308 | case NL80211_REGDOM_SET_BY_CORE: | |
309 | case NL80211_REGDOM_SET_BY_USER: | |
310 | break; | |
311 | /* Todo: apply driver specific changes in channel flags based | |
312 | on the request initiator if necessary. */ | |
313 | case NL80211_REGDOM_SET_BY_COUNTRY_IE: | |
314 | break; | |
315 | } | |
316 | mwifiex_send_domain_info_cmd_fw(wiphy); | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | /* | |
322 | * This function sets the RF channel. | |
323 | * | |
324 | * This function creates multiple IOCTL requests, populates them accordingly | |
325 | * and issues them to set the band/channel and frequency. | |
326 | */ | |
327 | static int | |
328 | mwifiex_set_rf_channel(struct mwifiex_private *priv, | |
329 | struct ieee80211_channel *chan, | |
330 | enum nl80211_channel_type channel_type) | |
331 | { | |
332 | struct mwifiex_chan_freq_power cfp; | |
5e6e3a92 | 333 | struct mwifiex_ds_band_cfg band_cfg; |
5e6e3a92 BZ |
334 | u32 config_bands = 0; |
335 | struct wiphy *wiphy = priv->wdev->wiphy; | |
336 | ||
5e6e3a92 BZ |
337 | if (chan) { |
338 | memset(&band_cfg, 0, sizeof(band_cfg)); | |
339 | /* Set appropriate bands */ | |
340 | if (chan->band == IEEE80211_BAND_2GHZ) | |
341 | config_bands = BAND_B | BAND_G | BAND_GN; | |
342 | else | |
343 | config_bands = BAND_AN | BAND_A; | |
eecd8250 BZ |
344 | if (priv->bss_mode == NL80211_IFTYPE_STATION |
345 | || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) { | |
5e6e3a92 | 346 | band_cfg.config_bands = config_bands; |
eecd8250 | 347 | } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
348 | band_cfg.config_bands = config_bands; |
349 | band_cfg.adhoc_start_band = config_bands; | |
350 | } | |
636c4598 | 351 | |
5e6e3a92 BZ |
352 | band_cfg.sec_chan_offset = |
353 | mwifiex_cfg80211_channel_type_to_mwifiex_channels | |
354 | (channel_type); | |
5e6e3a92 | 355 | |
636c4598 | 356 | if (mwifiex_set_radio_band_cfg(priv, &band_cfg)) |
5e6e3a92 | 357 | return -EFAULT; |
636c4598 | 358 | |
5e6e3a92 BZ |
359 | mwifiex_send_domain_info_cmd_fw(wiphy); |
360 | } | |
361 | ||
362 | wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and " | |
eecd8250 BZ |
363 | "mode %d\n", config_bands, band_cfg.sec_chan_offset, |
364 | priv->bss_mode); | |
5e6e3a92 | 365 | if (!chan) |
636c4598 | 366 | return 0; |
5e6e3a92 BZ |
367 | |
368 | memset(&cfp, 0, sizeof(cfp)); | |
369 | cfp.freq = chan->center_freq; | |
5e6e3a92 BZ |
370 | cfp.channel = ieee80211_frequency_to_channel(chan->center_freq); |
371 | ||
636c4598 | 372 | if (mwifiex_bss_set_channel(priv, &cfp)) |
5e6e3a92 BZ |
373 | return -EFAULT; |
374 | ||
636c4598 | 375 | return mwifiex_drv_change_adhoc_chan(priv, cfp.channel); |
5e6e3a92 BZ |
376 | } |
377 | ||
378 | /* | |
379 | * CFG802.11 operation handler to set channel. | |
380 | * | |
381 | * This function can only be used when station is not connected. | |
382 | */ | |
383 | static int | |
384 | mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev, | |
385 | struct ieee80211_channel *chan, | |
386 | enum nl80211_channel_type channel_type) | |
387 | { | |
388 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
389 | ||
390 | if (priv->media_connected) { | |
391 | wiphy_err(wiphy, "This setting is valid only when station " | |
392 | "is not connected\n"); | |
393 | return -EINVAL; | |
394 | } | |
395 | ||
396 | return mwifiex_set_rf_channel(priv, chan, channel_type); | |
397 | } | |
398 | ||
399 | /* | |
400 | * This function sets the fragmentation threshold. | |
401 | * | |
600f5d90 | 402 | * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE |
5e6e3a92 BZ |
403 | * and MWIFIEX_FRAG_MAX_VALUE. |
404 | */ | |
405 | static int | |
406 | mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) | |
407 | { | |
270e58e8 | 408 | int ret; |
5e6e3a92 BZ |
409 | |
410 | if (frag_thr < MWIFIEX_FRAG_MIN_VALUE | |
411 | || frag_thr > MWIFIEX_FRAG_MAX_VALUE) | |
412 | return -EINVAL; | |
413 | ||
600f5d90 AK |
414 | /* Send request to firmware */ |
415 | ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, | |
416 | HostCmd_ACT_GEN_SET, FRAG_THRESH_I, | |
417 | &frag_thr); | |
5e6e3a92 | 418 | |
5e6e3a92 BZ |
419 | return ret; |
420 | } | |
421 | ||
422 | /* | |
423 | * This function sets the RTS threshold. | |
600f5d90 AK |
424 | |
425 | * The rts value must lie between MWIFIEX_RTS_MIN_VALUE | |
426 | * and MWIFIEX_RTS_MAX_VALUE. | |
5e6e3a92 BZ |
427 | */ |
428 | static int | |
429 | mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) | |
430 | { | |
5e6e3a92 BZ |
431 | if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) |
432 | rts_thr = MWIFIEX_RTS_MAX_VALUE; | |
433 | ||
636c4598 | 434 | return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
600f5d90 AK |
435 | HostCmd_ACT_GEN_SET, RTS_THRESH_I, |
436 | &rts_thr); | |
5e6e3a92 BZ |
437 | } |
438 | ||
439 | /* | |
440 | * CFG802.11 operation handler to set wiphy parameters. | |
441 | * | |
442 | * This function can be used to set the RTS threshold and the | |
443 | * Fragmentation threshold of the driver. | |
444 | */ | |
445 | static int | |
446 | mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
447 | { | |
448 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
5e6e3a92 BZ |
449 | int ret = 0; |
450 | ||
636c4598 | 451 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
5e6e3a92 | 452 | ret = mwifiex_set_rts(priv, wiphy->rts_threshold); |
636c4598 YAP |
453 | if (ret) |
454 | return ret; | |
455 | } | |
5e6e3a92 BZ |
456 | |
457 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
458 | ret = mwifiex_set_frag(priv, wiphy->frag_threshold); | |
459 | ||
460 | return ret; | |
461 | } | |
462 | ||
463 | /* | |
464 | * CFG802.11 operation handler to change interface type. | |
5e6e3a92 BZ |
465 | */ |
466 | static int | |
467 | mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, | |
468 | struct net_device *dev, | |
469 | enum nl80211_iftype type, u32 *flags, | |
470 | struct vif_params *params) | |
471 | { | |
270e58e8 | 472 | int ret; |
5e6e3a92 | 473 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
5e6e3a92 | 474 | |
eecd8250 BZ |
475 | if (priv->bss_mode == type) { |
476 | wiphy_warn(wiphy, "already set to required type\n"); | |
477 | return 0; | |
478 | } | |
479 | ||
480 | priv->bss_mode = type; | |
5e6e3a92 BZ |
481 | |
482 | switch (type) { | |
483 | case NL80211_IFTYPE_ADHOC: | |
5e6e3a92 BZ |
484 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC; |
485 | wiphy_dbg(wiphy, "info: setting interface type to adhoc\n"); | |
486 | break; | |
487 | case NL80211_IFTYPE_STATION: | |
5e6e3a92 | 488 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION; |
eecd8250 | 489 | wiphy_dbg(wiphy, "info: setting interface type to managed\n"); |
5e6e3a92 BZ |
490 | break; |
491 | case NL80211_IFTYPE_UNSPECIFIED: | |
5e6e3a92 BZ |
492 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION; |
493 | wiphy_dbg(wiphy, "info: setting interface type to auto\n"); | |
eecd8250 | 494 | return 0; |
5e6e3a92 | 495 | default: |
eecd8250 BZ |
496 | wiphy_err(wiphy, "unknown interface type: %d\n", type); |
497 | return -EINVAL; | |
5e6e3a92 | 498 | } |
5e6e3a92 | 499 | |
600f5d90 | 500 | mwifiex_deauthenticate(priv, NULL); |
eecd8250 | 501 | |
f986b6d5 | 502 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
eecd8250 | 503 | |
600f5d90 AK |
504 | ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE, |
505 | HostCmd_ACT_GEN_SET, 0, NULL); | |
eecd8250 | 506 | |
5e6e3a92 BZ |
507 | return ret; |
508 | } | |
509 | ||
510 | /* | |
511 | * This function dumps the station information on a buffer. | |
512 | * | |
513 | * The following information are shown - | |
514 | * - Total bytes transmitted | |
515 | * - Total bytes received | |
516 | * - Total packets transmitted | |
517 | * - Total packets received | |
518 | * - Signal quality level | |
519 | * - Transmission rate | |
520 | */ | |
521 | static int | |
522 | mwifiex_dump_station_info(struct mwifiex_private *priv, | |
523 | struct station_info *sinfo) | |
524 | { | |
525 | struct mwifiex_ds_get_signal signal; | |
526 | struct mwifiex_rate_cfg rate; | |
527 | int ret = 0; | |
528 | ||
529 | sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES | | |
530 | STATION_INFO_RX_PACKETS | | |
531 | STATION_INFO_TX_PACKETS | |
532 | | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE; | |
533 | ||
534 | /* Get signal information from the firmware */ | |
535 | memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal)); | |
600f5d90 | 536 | if (mwifiex_get_signal_info(priv, &signal)) { |
5e6e3a92 BZ |
537 | dev_err(priv->adapter->dev, "getting signal information\n"); |
538 | ret = -EFAULT; | |
539 | } | |
540 | ||
541 | if (mwifiex_drv_get_data_rate(priv, &rate)) { | |
542 | dev_err(priv->adapter->dev, "getting data rate\n"); | |
543 | ret = -EFAULT; | |
544 | } | |
545 | ||
546 | sinfo->rx_bytes = priv->stats.rx_bytes; | |
547 | sinfo->tx_bytes = priv->stats.tx_bytes; | |
548 | sinfo->rx_packets = priv->stats.rx_packets; | |
549 | sinfo->tx_packets = priv->stats.tx_packets; | |
550 | sinfo->signal = priv->w_stats.qual.level; | |
551 | sinfo->txrate.legacy = rate.rate; | |
552 | ||
553 | return ret; | |
554 | } | |
555 | ||
556 | /* | |
557 | * CFG802.11 operation handler to get station information. | |
558 | * | |
559 | * This function only works in connected mode, and dumps the | |
560 | * requested station information, if available. | |
561 | */ | |
562 | static int | |
563 | mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, | |
564 | u8 *mac, struct station_info *sinfo) | |
565 | { | |
566 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
5e6e3a92 BZ |
567 | |
568 | mwifiex_dump_station_info(priv, sinfo); | |
569 | ||
570 | if (!priv->media_connected) | |
571 | return -ENOENT; | |
572 | if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) | |
573 | return -ENOENT; | |
574 | ||
636c4598 | 575 | return mwifiex_dump_station_info(priv, sinfo); |
5e6e3a92 BZ |
576 | } |
577 | ||
578 | /* Supported rates to be advertised to the cfg80211 */ | |
579 | ||
580 | static struct ieee80211_rate mwifiex_rates[] = { | |
581 | {.bitrate = 10, .hw_value = 2, }, | |
582 | {.bitrate = 20, .hw_value = 4, }, | |
583 | {.bitrate = 55, .hw_value = 11, }, | |
584 | {.bitrate = 110, .hw_value = 22, }, | |
585 | {.bitrate = 220, .hw_value = 44, }, | |
586 | {.bitrate = 60, .hw_value = 12, }, | |
587 | {.bitrate = 90, .hw_value = 18, }, | |
588 | {.bitrate = 120, .hw_value = 24, }, | |
589 | {.bitrate = 180, .hw_value = 36, }, | |
590 | {.bitrate = 240, .hw_value = 48, }, | |
591 | {.bitrate = 360, .hw_value = 72, }, | |
592 | {.bitrate = 480, .hw_value = 96, }, | |
593 | {.bitrate = 540, .hw_value = 108, }, | |
594 | {.bitrate = 720, .hw_value = 144, }, | |
595 | }; | |
596 | ||
597 | /* Channel definitions to be advertised to cfg80211 */ | |
598 | ||
599 | static struct ieee80211_channel mwifiex_channels_2ghz[] = { | |
600 | {.center_freq = 2412, .hw_value = 1, }, | |
601 | {.center_freq = 2417, .hw_value = 2, }, | |
602 | {.center_freq = 2422, .hw_value = 3, }, | |
603 | {.center_freq = 2427, .hw_value = 4, }, | |
604 | {.center_freq = 2432, .hw_value = 5, }, | |
605 | {.center_freq = 2437, .hw_value = 6, }, | |
606 | {.center_freq = 2442, .hw_value = 7, }, | |
607 | {.center_freq = 2447, .hw_value = 8, }, | |
608 | {.center_freq = 2452, .hw_value = 9, }, | |
609 | {.center_freq = 2457, .hw_value = 10, }, | |
610 | {.center_freq = 2462, .hw_value = 11, }, | |
611 | {.center_freq = 2467, .hw_value = 12, }, | |
612 | {.center_freq = 2472, .hw_value = 13, }, | |
613 | {.center_freq = 2484, .hw_value = 14, }, | |
614 | }; | |
615 | ||
616 | static struct ieee80211_supported_band mwifiex_band_2ghz = { | |
617 | .channels = mwifiex_channels_2ghz, | |
618 | .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), | |
619 | .bitrates = mwifiex_rates, | |
620 | .n_bitrates = 14, | |
621 | }; | |
622 | ||
623 | static struct ieee80211_channel mwifiex_channels_5ghz[] = { | |
624 | {.center_freq = 5040, .hw_value = 8, }, | |
625 | {.center_freq = 5060, .hw_value = 12, }, | |
626 | {.center_freq = 5080, .hw_value = 16, }, | |
627 | {.center_freq = 5170, .hw_value = 34, }, | |
628 | {.center_freq = 5190, .hw_value = 38, }, | |
629 | {.center_freq = 5210, .hw_value = 42, }, | |
630 | {.center_freq = 5230, .hw_value = 46, }, | |
631 | {.center_freq = 5180, .hw_value = 36, }, | |
632 | {.center_freq = 5200, .hw_value = 40, }, | |
633 | {.center_freq = 5220, .hw_value = 44, }, | |
634 | {.center_freq = 5240, .hw_value = 48, }, | |
635 | {.center_freq = 5260, .hw_value = 52, }, | |
636 | {.center_freq = 5280, .hw_value = 56, }, | |
637 | {.center_freq = 5300, .hw_value = 60, }, | |
638 | {.center_freq = 5320, .hw_value = 64, }, | |
639 | {.center_freq = 5500, .hw_value = 100, }, | |
640 | {.center_freq = 5520, .hw_value = 104, }, | |
641 | {.center_freq = 5540, .hw_value = 108, }, | |
642 | {.center_freq = 5560, .hw_value = 112, }, | |
643 | {.center_freq = 5580, .hw_value = 116, }, | |
644 | {.center_freq = 5600, .hw_value = 120, }, | |
645 | {.center_freq = 5620, .hw_value = 124, }, | |
646 | {.center_freq = 5640, .hw_value = 128, }, | |
647 | {.center_freq = 5660, .hw_value = 132, }, | |
648 | {.center_freq = 5680, .hw_value = 136, }, | |
649 | {.center_freq = 5700, .hw_value = 140, }, | |
650 | {.center_freq = 5745, .hw_value = 149, }, | |
651 | {.center_freq = 5765, .hw_value = 153, }, | |
652 | {.center_freq = 5785, .hw_value = 157, }, | |
653 | {.center_freq = 5805, .hw_value = 161, }, | |
654 | {.center_freq = 5825, .hw_value = 165, }, | |
655 | }; | |
656 | ||
657 | static struct ieee80211_supported_band mwifiex_band_5ghz = { | |
658 | .channels = mwifiex_channels_5ghz, | |
659 | .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), | |
660 | .bitrates = mwifiex_rates - 4, | |
661 | .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4, | |
662 | }; | |
663 | ||
664 | ||
665 | /* Supported crypto cipher suits to be advertised to cfg80211 */ | |
666 | ||
667 | static const u32 mwifiex_cipher_suites[] = { | |
668 | WLAN_CIPHER_SUITE_WEP40, | |
669 | WLAN_CIPHER_SUITE_WEP104, | |
670 | WLAN_CIPHER_SUITE_TKIP, | |
671 | WLAN_CIPHER_SUITE_CCMP, | |
672 | }; | |
673 | ||
674 | /* | |
675 | * CFG802.11 operation handler for disconnection request. | |
676 | * | |
677 | * This function does not work when there is already a disconnection | |
678 | * procedure going on. | |
679 | */ | |
680 | static int | |
681 | mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, | |
682 | u16 reason_code) | |
683 | { | |
684 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
685 | ||
686 | if (priv->disconnect) | |
687 | return -EBUSY; | |
688 | ||
689 | priv->disconnect = 1; | |
600f5d90 | 690 | if (mwifiex_deauthenticate(priv, NULL)) |
5e6e3a92 BZ |
691 | return -EFAULT; |
692 | ||
693 | wiphy_dbg(wiphy, "info: successfully disconnected from %pM:" | |
694 | " reason code %d\n", priv->cfg_bssid, reason_code); | |
695 | ||
696 | queue_work(priv->workqueue, &priv->cfg_workqueue); | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | /* | |
702 | * This function informs the CFG802.11 subsystem of a new IBSS. | |
703 | * | |
704 | * The following information are sent to the CFG802.11 subsystem | |
705 | * to register the new IBSS. If we do not register the new IBSS, | |
706 | * a kernel panic will result. | |
707 | * - SSID | |
708 | * - SSID length | |
709 | * - BSSID | |
710 | * - Channel | |
711 | */ | |
712 | static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) | |
713 | { | |
5e6e3a92 BZ |
714 | struct ieee80211_channel *chan; |
715 | struct mwifiex_bss_info bss_info; | |
270e58e8 | 716 | int ie_len; |
5e6e3a92 BZ |
717 | u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; |
718 | ||
636c4598 YAP |
719 | if (mwifiex_get_bss_info(priv, &bss_info)) |
720 | return -1; | |
5e6e3a92 BZ |
721 | |
722 | ie_buf[0] = WLAN_EID_SSID; | |
723 | ie_buf[1] = bss_info.ssid.ssid_len; | |
724 | ||
725 | memcpy(&ie_buf[sizeof(struct ieee_types_header)], | |
726 | &bss_info.ssid.ssid, | |
727 | bss_info.ssid.ssid_len); | |
728 | ie_len = ie_buf[1] + sizeof(struct ieee_types_header); | |
729 | ||
730 | chan = __ieee80211_get_channel(priv->wdev->wiphy, | |
731 | ieee80211_channel_to_frequency(bss_info.bss_chan, | |
732 | priv->curr_bss_params.band)); | |
733 | ||
734 | cfg80211_inform_bss(priv->wdev->wiphy, chan, | |
735 | bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, | |
736 | 0, ie_buf, ie_len, 0, GFP_KERNEL); | |
737 | memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN); | |
738 | ||
636c4598 | 739 | return 0; |
5e6e3a92 BZ |
740 | } |
741 | ||
742 | /* | |
743 | * This function informs the CFG802.11 subsystem of a new BSS connection. | |
744 | * | |
745 | * The following information are sent to the CFG802.11 subsystem | |
746 | * to register the new BSS connection. If we do not register the new BSS, | |
747 | * a kernel panic will result. | |
748 | * - MAC address | |
749 | * - Capabilities | |
750 | * - Beacon period | |
751 | * - RSSI value | |
752 | * - Channel | |
753 | * - Supported rates IE | |
754 | * - Extended capabilities IE | |
755 | * - DS parameter set IE | |
756 | * - HT Capability IE | |
757 | * - Vendor Specific IE (221) | |
758 | * - WPA IE | |
759 | * - RSN IE | |
760 | */ | |
761 | static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv, | |
762 | struct mwifiex_802_11_ssid *ssid) | |
763 | { | |
5e6e3a92 BZ |
764 | struct mwifiex_bssdescriptor *scan_table; |
765 | int i, j; | |
766 | struct ieee80211_channel *chan; | |
636c4598 | 767 | u8 *ie, *ie_buf; |
5e6e3a92 | 768 | u32 ie_len; |
5e6e3a92 BZ |
769 | u8 *beacon; |
770 | int beacon_size; | |
771 | u8 element_id, element_len; | |
772 | ||
5e6e3a92 BZ |
773 | #define MAX_IE_BUF 2048 |
774 | ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL); | |
775 | if (!ie_buf) { | |
776 | dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n", | |
777 | __func__); | |
778 | return -ENOMEM; | |
779 | } | |
780 | ||
a8c48565 BZ |
781 | scan_table = priv->adapter->scan_table; |
782 | for (i = 0; i < priv->adapter->num_in_scan_table; i++) { | |
5e6e3a92 BZ |
783 | if (ssid) { |
784 | /* Inform specific BSS only */ | |
785 | if (memcmp(ssid->ssid, scan_table[i].ssid.ssid, | |
786 | ssid->ssid_len)) | |
787 | continue; | |
788 | } | |
789 | memset(ie_buf, 0, MAX_IE_BUF); | |
790 | ie_buf[0] = WLAN_EID_SSID; | |
791 | ie_buf[1] = scan_table[i].ssid.ssid_len; | |
792 | memcpy(&ie_buf[sizeof(struct ieee_types_header)], | |
793 | scan_table[i].ssid.ssid, ie_buf[1]); | |
794 | ||
795 | ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header); | |
796 | ie_len = ie_buf[1] + sizeof(struct ieee_types_header); | |
797 | ||
798 | ie[0] = WLAN_EID_SUPP_RATES; | |
799 | ||
800 | for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) { | |
801 | if (!scan_table[i].supported_rates[j]) | |
802 | break; | |
803 | else | |
804 | ie[j + sizeof(struct ieee_types_header)] = | |
805 | scan_table[i].supported_rates[j]; | |
806 | } | |
807 | ||
808 | ie[1] = j; | |
809 | ie_len += ie[1] + sizeof(struct ieee_types_header); | |
810 | ||
811 | beacon = scan_table[i].beacon_buf; | |
812 | beacon_size = scan_table[i].beacon_buf_size; | |
813 | ||
814 | /* Skip time stamp, beacon interval and capability */ | |
815 | ||
816 | if (beacon) { | |
817 | beacon += sizeof(scan_table[i].beacon_period) | |
818 | + sizeof(scan_table[i].time_stamp) + | |
819 | +sizeof(scan_table[i].cap_info_bitmap); | |
820 | ||
821 | beacon_size -= sizeof(scan_table[i].beacon_period) | |
822 | + sizeof(scan_table[i].time_stamp) | |
823 | + sizeof(scan_table[i].cap_info_bitmap); | |
824 | } | |
825 | ||
826 | while (beacon_size >= sizeof(struct ieee_types_header)) { | |
827 | ie = ie_buf + ie_len; | |
828 | element_id = *beacon; | |
829 | element_len = *(beacon + 1); | |
830 | if (beacon_size < (int) element_len + | |
831 | sizeof(struct ieee_types_header)) { | |
832 | dev_err(priv->adapter->dev, "%s: in processing" | |
833 | " IE, bytes left < IE length\n", | |
834 | __func__); | |
835 | break; | |
836 | } | |
837 | switch (element_id) { | |
838 | case WLAN_EID_EXT_CAPABILITY: | |
839 | case WLAN_EID_DS_PARAMS: | |
840 | case WLAN_EID_HT_CAPABILITY: | |
841 | case WLAN_EID_VENDOR_SPECIFIC: | |
842 | case WLAN_EID_RSN: | |
843 | case WLAN_EID_BSS_AC_ACCESS_DELAY: | |
844 | ie[0] = element_id; | |
845 | ie[1] = element_len; | |
5e6e3a92 | 846 | memcpy(&ie[sizeof(struct ieee_types_header)], |
636c4598 YAP |
847 | (u8 *) beacon |
848 | + sizeof(struct ieee_types_header), | |
5e6e3a92 BZ |
849 | element_len); |
850 | ie_len += ie[1] + | |
851 | sizeof(struct ieee_types_header); | |
852 | break; | |
853 | default: | |
854 | break; | |
855 | } | |
856 | beacon += element_len + | |
857 | sizeof(struct ieee_types_header); | |
858 | beacon_size -= element_len + | |
859 | sizeof(struct ieee_types_header); | |
860 | } | |
861 | chan = ieee80211_get_channel(priv->wdev->wiphy, | |
862 | scan_table[i].freq); | |
863 | cfg80211_inform_bss(priv->wdev->wiphy, chan, | |
864 | scan_table[i].mac_address, | |
636c4598 | 865 | 0, scan_table[i].cap_info_bitmap, |
5e6e3a92 BZ |
866 | scan_table[i].beacon_period, |
867 | ie_buf, ie_len, | |
868 | scan_table[i].rssi, GFP_KERNEL); | |
869 | } | |
870 | ||
871 | kfree(ie_buf); | |
872 | return 0; | |
873 | } | |
874 | ||
875 | /* | |
876 | * This function connects with a BSS. | |
877 | * | |
878 | * This function handles both Infra and Ad-Hoc modes. It also performs | |
879 | * validity checking on the provided parameters, disconnects from the | |
880 | * current BSS (if any), sets up the association/scan parameters, | |
881 | * including security settings, and performs specific SSID scan before | |
882 | * trying to connect. | |
883 | * | |
884 | * For Infra mode, the function returns failure if the specified SSID | |
885 | * is not found in scan table. However, for Ad-Hoc mode, it can create | |
886 | * the IBSS if it does not exist. On successful completion in either case, | |
887 | * the function notifies the CFG802.11 subsystem of the new BSS connection, | |
888 | * otherwise the kernel will panic. | |
889 | */ | |
890 | static int | |
891 | mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid, | |
892 | u8 *bssid, int mode, struct ieee80211_channel *channel, | |
893 | struct cfg80211_connect_params *sme, bool privacy) | |
894 | { | |
895 | struct mwifiex_802_11_ssid req_ssid; | |
896 | struct mwifiex_ssid_bssid ssid_bssid; | |
270e58e8 | 897 | int ret, auth_type = 0; |
5e6e3a92 BZ |
898 | |
899 | memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid)); | |
900 | memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid)); | |
901 | ||
902 | req_ssid.ssid_len = ssid_len; | |
903 | if (ssid_len > IEEE80211_MAX_SSID_LEN) { | |
904 | dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); | |
905 | return -EINVAL; | |
906 | } | |
907 | ||
908 | memcpy(req_ssid.ssid, ssid, ssid_len); | |
909 | if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { | |
910 | dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); | |
911 | return -EINVAL; | |
912 | } | |
913 | ||
914 | /* disconnect before try to associate */ | |
600f5d90 | 915 | mwifiex_deauthenticate(priv, NULL); |
5e6e3a92 BZ |
916 | |
917 | if (channel) | |
918 | ret = mwifiex_set_rf_channel(priv, channel, | |
919 | mwifiex_channels_to_cfg80211_channel_type | |
920 | (priv->adapter->chan_offset)); | |
921 | ||
922 | ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */ | |
923 | ||
eecd8250 | 924 | if (mode == NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
925 | /* "privacy" is set only for ad-hoc mode */ |
926 | if (privacy) { | |
927 | /* | |
2be50b8d | 928 | * Keep WLAN_CIPHER_SUITE_WEP104 for now so that |
5e6e3a92 BZ |
929 | * the firmware can find a matching network from the |
930 | * scan. The cfg80211 does not give us the encryption | |
931 | * mode at this stage so just setting it to WEP here. | |
932 | */ | |
203afeca | 933 | priv->sec_info.encryption_mode = |
2be50b8d | 934 | WLAN_CIPHER_SUITE_WEP104; |
203afeca | 935 | priv->sec_info.authentication_mode = |
f986b6d5 | 936 | NL80211_AUTHTYPE_OPEN_SYSTEM; |
5e6e3a92 BZ |
937 | } |
938 | ||
939 | goto done; | |
940 | } | |
941 | ||
942 | /* Now handle infra mode. "sme" is valid for infra mode only */ | |
943 | if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC | |
944 | || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) | |
f986b6d5 | 945 | auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
5e6e3a92 | 946 | else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
f986b6d5 | 947 | auth_type = NL80211_AUTHTYPE_SHARED_KEY; |
5e6e3a92 BZ |
948 | |
949 | if (sme->crypto.n_ciphers_pairwise) { | |
2be50b8d YAP |
950 | priv->sec_info.encryption_mode = |
951 | sme->crypto.ciphers_pairwise[0]; | |
203afeca | 952 | priv->sec_info.authentication_mode = auth_type; |
5e6e3a92 BZ |
953 | } |
954 | ||
955 | if (sme->crypto.cipher_group) { | |
2be50b8d | 956 | priv->sec_info.encryption_mode = sme->crypto.cipher_group; |
203afeca | 957 | priv->sec_info.authentication_mode = auth_type; |
5e6e3a92 BZ |
958 | } |
959 | if (sme->ie) | |
960 | ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); | |
961 | ||
962 | if (sme->key) { | |
636c4598 | 963 | if (mwifiex_is_alg_wep(0) | mwifiex_is_alg_wep(0)) { |
5e6e3a92 BZ |
964 | dev_dbg(priv->adapter->dev, |
965 | "info: setting wep encryption" | |
966 | " with key len %d\n", sme->key_len); | |
967 | ret = mwifiex_set_encode(priv, sme->key, sme->key_len, | |
968 | sme->key_idx, 0); | |
969 | } | |
970 | } | |
971 | done: | |
972 | /* Do specific SSID scanning */ | |
600f5d90 | 973 | if (mwifiex_request_scan(priv, &req_ssid)) { |
5e6e3a92 BZ |
974 | dev_err(priv->adapter->dev, "scan error\n"); |
975 | return -EFAULT; | |
976 | } | |
977 | ||
978 | ||
979 | memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid)); | |
980 | ||
eecd8250 | 981 | if (mode != NL80211_IFTYPE_ADHOC) { |
600f5d90 | 982 | if (mwifiex_find_best_bss(priv, &ssid_bssid)) |
5e6e3a92 BZ |
983 | return -EFAULT; |
984 | /* Inform the BSS information to kernel, otherwise | |
985 | * kernel will give a panic after successful assoc */ | |
986 | if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid)) | |
987 | return -EFAULT; | |
988 | } | |
989 | ||
990 | dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n", | |
991 | (char *) req_ssid.ssid, ssid_bssid.bssid); | |
992 | ||
993 | memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6); | |
994 | ||
995 | /* Connect to BSS by ESSID */ | |
996 | memset(&ssid_bssid.bssid, 0, ETH_ALEN); | |
997 | ||
600f5d90 AK |
998 | if (!netif_queue_stopped(priv->netdev)) |
999 | netif_stop_queue(priv->netdev); | |
1000 | ||
1001 | if (mwifiex_bss_start(priv, &ssid_bssid)) | |
5e6e3a92 BZ |
1002 | return -EFAULT; |
1003 | ||
eecd8250 | 1004 | if (mode == NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
1005 | /* Inform the BSS information to kernel, otherwise |
1006 | * kernel will give a panic after successful assoc */ | |
1007 | if (mwifiex_cfg80211_inform_ibss_bss(priv)) | |
1008 | return -EFAULT; | |
1009 | } | |
1010 | ||
1011 | return ret; | |
1012 | } | |
1013 | ||
1014 | /* | |
1015 | * CFG802.11 operation handler for association request. | |
1016 | * | |
1017 | * This function does not work when the current mode is set to Ad-Hoc, or | |
1018 | * when there is already an association procedure going on. The given BSS | |
1019 | * information is used to associate. | |
1020 | */ | |
1021 | static int | |
1022 | mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, | |
1023 | struct cfg80211_connect_params *sme) | |
1024 | { | |
1025 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
1026 | int ret = 0; | |
5e6e3a92 BZ |
1027 | |
1028 | if (priv->assoc_request) | |
1029 | return -EBUSY; | |
1030 | ||
eecd8250 | 1031 | if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
1032 | wiphy_err(wiphy, "received infra assoc request " |
1033 | "when station is in ibss mode\n"); | |
1034 | goto done; | |
1035 | } | |
1036 | ||
57f16b5d | 1037 | priv->assoc_request = -EINPROGRESS; |
5e6e3a92 BZ |
1038 | |
1039 | wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n", | |
1040 | (char *) sme->ssid, sme->bssid); | |
1041 | ||
1042 | ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, | |
eecd8250 | 1043 | priv->bss_mode, sme->channel, sme, 0); |
5e6e3a92 | 1044 | |
57f16b5d | 1045 | priv->assoc_request = 1; |
5e6e3a92 BZ |
1046 | done: |
1047 | priv->assoc_result = ret; | |
1048 | queue_work(priv->workqueue, &priv->cfg_workqueue); | |
1049 | return ret; | |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * CFG802.11 operation handler to join an IBSS. | |
1054 | * | |
1055 | * This function does not work in any mode other than Ad-Hoc, or if | |
1056 | * a join operation is already in progress. | |
1057 | */ | |
1058 | static int | |
1059 | mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
1060 | struct cfg80211_ibss_params *params) | |
1061 | { | |
1062 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
1063 | int ret = 0; | |
5e6e3a92 BZ |
1064 | |
1065 | if (priv->ibss_join_request) | |
1066 | return -EBUSY; | |
1067 | ||
eecd8250 | 1068 | if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { |
5e6e3a92 BZ |
1069 | wiphy_err(wiphy, "request to join ibss received " |
1070 | "when station is not in ibss mode\n"); | |
1071 | goto done; | |
1072 | } | |
1073 | ||
57f16b5d | 1074 | priv->ibss_join_request = -EINPROGRESS; |
5e6e3a92 BZ |
1075 | |
1076 | wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n", | |
1077 | (char *) params->ssid, params->bssid); | |
1078 | ||
1079 | ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, | |
eecd8250 BZ |
1080 | params->bssid, priv->bss_mode, |
1081 | params->channel, NULL, params->privacy); | |
57f16b5d AK |
1082 | |
1083 | priv->ibss_join_request = 1; | |
5e6e3a92 BZ |
1084 | done: |
1085 | priv->ibss_join_result = ret; | |
1086 | queue_work(priv->workqueue, &priv->cfg_workqueue); | |
1087 | return ret; | |
1088 | } | |
1089 | ||
1090 | /* | |
1091 | * CFG802.11 operation handler to leave an IBSS. | |
1092 | * | |
1093 | * This function does not work if a leave operation is | |
1094 | * already in progress. | |
1095 | */ | |
1096 | static int | |
1097 | mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
1098 | { | |
1099 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); | |
1100 | ||
1101 | if (priv->disconnect) | |
1102 | return -EBUSY; | |
1103 | ||
1104 | priv->disconnect = 1; | |
1105 | ||
1106 | wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n", | |
1107 | priv->cfg_bssid); | |
600f5d90 | 1108 | if (mwifiex_deauthenticate(priv, NULL)) |
5e6e3a92 BZ |
1109 | return -EFAULT; |
1110 | ||
1111 | queue_work(priv->workqueue, &priv->cfg_workqueue); | |
1112 | ||
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | /* | |
1117 | * CFG802.11 operation handler for scan request. | |
1118 | * | |
1119 | * This function issues a scan request to the firmware based upon | |
1120 | * the user specified scan configuration. On successfull completion, | |
1121 | * it also informs the results. | |
1122 | */ | |
1123 | static int | |
1124 | mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev, | |
1125 | struct cfg80211_scan_request *request) | |
1126 | { | |
1127 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
1128 | ||
1129 | wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name); | |
1130 | ||
1131 | if (priv->scan_request && priv->scan_request != request) | |
1132 | return -EBUSY; | |
1133 | ||
1134 | priv->scan_request = request; | |
1135 | ||
1136 | queue_work(priv->workqueue, &priv->cfg_workqueue); | |
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * This function sets up the CFG802.11 specific HT capability fields | |
1142 | * with default values. | |
1143 | * | |
1144 | * The following default values are set - | |
1145 | * - HT Supported = True | |
a46b7b5c AK |
1146 | * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K |
1147 | * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE | |
1148 | * - HT Capabilities supported by firmware | |
5e6e3a92 BZ |
1149 | * - MCS information, Rx mask = 0xff |
1150 | * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) | |
1151 | */ | |
1152 | static void | |
1153 | mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, | |
1154 | struct mwifiex_private *priv) | |
1155 | { | |
1156 | int rx_mcs_supp; | |
1157 | struct ieee80211_mcs_info mcs_set; | |
1158 | u8 *mcs = (u8 *)&mcs_set; | |
1159 | struct mwifiex_adapter *adapter = priv->adapter; | |
1160 | ||
1161 | ht_info->ht_supported = true; | |
a46b7b5c AK |
1162 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
1163 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; | |
5e6e3a92 BZ |
1164 | |
1165 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
5e6e3a92 | 1166 | |
a46b7b5c AK |
1167 | /* Fill HT capability information */ |
1168 | if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) | |
1169 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
1170 | else | |
1171 | ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
1172 | ||
1173 | if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) | |
1174 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; | |
1175 | else | |
1176 | ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; | |
1177 | ||
1178 | if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) | |
1179 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; | |
1180 | else | |
1181 | ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; | |
1182 | ||
1183 | if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap)) | |
1184 | ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; | |
1185 | else | |
1186 | ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT); | |
1187 | ||
1188 | if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) | |
1189 | ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; | |
1190 | else | |
1191 | ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; | |
1192 | ||
1193 | ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; | |
1194 | ht_info->cap |= IEEE80211_HT_CAP_SM_PS; | |
1195 | ||
1196 | rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support); | |
5e6e3a92 BZ |
1197 | /* Set MCS for 1x1 */ |
1198 | memset(mcs, 0xff, rx_mcs_supp); | |
1199 | /* Clear all the other values */ | |
1200 | memset(&mcs[rx_mcs_supp], 0, | |
1201 | sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); | |
eecd8250 | 1202 | if (priv->bss_mode == NL80211_IFTYPE_STATION || |
6d2bd916 | 1203 | ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) |
5e6e3a92 BZ |
1204 | /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ |
1205 | SETHT_MCS32(mcs_set.rx_mask); | |
1206 | ||
1207 | memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); | |
1208 | ||
1209 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
1210 | } | |
1211 | ||
1212 | /* station cfg80211 operations */ | |
1213 | static struct cfg80211_ops mwifiex_cfg80211_ops = { | |
1214 | .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, | |
1215 | .scan = mwifiex_cfg80211_scan, | |
1216 | .connect = mwifiex_cfg80211_connect, | |
1217 | .disconnect = mwifiex_cfg80211_disconnect, | |
1218 | .get_station = mwifiex_cfg80211_get_station, | |
1219 | .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, | |
1220 | .set_channel = mwifiex_cfg80211_set_channel, | |
1221 | .join_ibss = mwifiex_cfg80211_join_ibss, | |
1222 | .leave_ibss = mwifiex_cfg80211_leave_ibss, | |
1223 | .add_key = mwifiex_cfg80211_add_key, | |
1224 | .del_key = mwifiex_cfg80211_del_key, | |
1225 | .set_default_key = mwifiex_cfg80211_set_default_key, | |
1226 | .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, | |
1227 | .set_tx_power = mwifiex_cfg80211_set_tx_power, | |
1228 | }; | |
1229 | ||
1230 | /* | |
1231 | * This function registers the device with CFG802.11 subsystem. | |
1232 | * | |
1233 | * The function creates the wireless device/wiphy, populates it with | |
1234 | * default parameters and handler function pointers, and finally | |
1235 | * registers the device. | |
1236 | */ | |
1237 | int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac, | |
1238 | struct mwifiex_private *priv) | |
1239 | { | |
270e58e8 YAP |
1240 | int ret; |
1241 | void *wdev_priv; | |
5e6e3a92 BZ |
1242 | struct wireless_dev *wdev; |
1243 | ||
1244 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
1245 | if (!wdev) { | |
1246 | dev_err(priv->adapter->dev, "%s: allocating wireless device\n", | |
1247 | __func__); | |
1248 | return -ENOMEM; | |
1249 | } | |
1250 | wdev->wiphy = | |
1251 | wiphy_new(&mwifiex_cfg80211_ops, | |
1252 | sizeof(struct mwifiex_private *)); | |
b53575ec CF |
1253 | if (!wdev->wiphy) { |
1254 | kfree(wdev); | |
5e6e3a92 | 1255 | return -ENOMEM; |
b53575ec | 1256 | } |
5e6e3a92 BZ |
1257 | wdev->iftype = NL80211_IFTYPE_STATION; |
1258 | wdev->wiphy->max_scan_ssids = 10; | |
1259 | wdev->wiphy->interface_modes = | |
1260 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); | |
adc89595 | 1261 | |
5e6e3a92 | 1262 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz; |
adc89595 AK |
1263 | mwifiex_setup_ht_caps( |
1264 | &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv); | |
1265 | ||
1266 | if (priv->adapter->config_bands & BAND_A) { | |
1267 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz; | |
1268 | mwifiex_setup_ht_caps( | |
1269 | &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv); | |
1270 | } else { | |
1271 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
1272 | } | |
5e6e3a92 BZ |
1273 | |
1274 | /* Initialize cipher suits */ | |
1275 | wdev->wiphy->cipher_suites = mwifiex_cipher_suites; | |
1276 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); | |
1277 | ||
5e6e3a92 BZ |
1278 | memcpy(wdev->wiphy->perm_addr, mac, 6); |
1279 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
1280 | ||
1281 | /* We are using custom domains */ | |
1282 | wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; | |
1283 | ||
1284 | wdev->wiphy->reg_notifier = mwifiex_reg_notifier; | |
1285 | ||
1286 | /* Set struct mwifiex_private pointer in wiphy_priv */ | |
1287 | wdev_priv = wiphy_priv(wdev->wiphy); | |
1288 | ||
1289 | *(unsigned long *) wdev_priv = (unsigned long) priv; | |
1290 | ||
1291 | ret = wiphy_register(wdev->wiphy); | |
1292 | if (ret < 0) { | |
1293 | dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n", | |
1294 | __func__); | |
1295 | wiphy_free(wdev->wiphy); | |
b53575ec | 1296 | kfree(wdev); |
5e6e3a92 BZ |
1297 | return ret; |
1298 | } else { | |
1299 | dev_dbg(priv->adapter->dev, | |
1300 | "info: successfully registered wiphy device\n"); | |
1301 | } | |
1302 | ||
1303 | dev_net_set(dev, wiphy_net(wdev->wiphy)); | |
1304 | dev->ieee80211_ptr = wdev; | |
1305 | memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6); | |
1306 | memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6); | |
1307 | SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); | |
1308 | priv->wdev = wdev; | |
1309 | ||
1310 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; | |
1311 | dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; | |
1312 | dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; | |
1313 | ||
1314 | return ret; | |
1315 | } | |
1316 | ||
1317 | /* | |
1318 | * This function handles the result of different pending network operations. | |
1319 | * | |
1320 | * The following operations are handled and CFG802.11 subsystem is | |
1321 | * notified accordingly - | |
1322 | * - Scan request completion | |
1323 | * - Association request completion | |
1324 | * - IBSS join request completion | |
1325 | * - Disconnect request completion | |
1326 | */ | |
1327 | void | |
1328 | mwifiex_cfg80211_results(struct work_struct *work) | |
1329 | { | |
1330 | struct mwifiex_private *priv = | |
1331 | container_of(work, struct mwifiex_private, cfg_workqueue); | |
1332 | struct mwifiex_user_scan_cfg *scan_req; | |
1333 | int ret = 0, i; | |
1334 | struct ieee80211_channel *chan; | |
1335 | ||
1336 | if (priv->scan_request) { | |
1337 | scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg), | |
1338 | GFP_KERNEL); | |
1339 | if (!scan_req) { | |
1340 | dev_err(priv->adapter->dev, "failed to alloc " | |
1341 | "scan_req\n"); | |
1342 | return; | |
1343 | } | |
1344 | for (i = 0; i < priv->scan_request->n_ssids; i++) { | |
1345 | memcpy(scan_req->ssid_list[i].ssid, | |
1346 | priv->scan_request->ssids[i].ssid, | |
1347 | priv->scan_request->ssids[i].ssid_len); | |
1348 | scan_req->ssid_list[i].max_len = | |
1349 | priv->scan_request->ssids[i].ssid_len; | |
1350 | } | |
1351 | for (i = 0; i < priv->scan_request->n_channels; i++) { | |
1352 | chan = priv->scan_request->channels[i]; | |
1353 | scan_req->chan_list[i].chan_number = chan->hw_value; | |
1354 | scan_req->chan_list[i].radio_type = chan->band; | |
1355 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
1356 | scan_req->chan_list[i].scan_type = | |
1357 | MWIFIEX_SCAN_TYPE_PASSIVE; | |
1358 | else | |
1359 | scan_req->chan_list[i].scan_type = | |
1360 | MWIFIEX_SCAN_TYPE_ACTIVE; | |
1361 | scan_req->chan_list[i].scan_time = 0; | |
1362 | } | |
1363 | if (mwifiex_set_user_scan_ioctl(priv, scan_req)) { | |
1364 | ret = -EFAULT; | |
1365 | goto done; | |
1366 | } | |
1367 | if (mwifiex_inform_bss_from_scan_result(priv, NULL)) | |
1368 | ret = -EFAULT; | |
1369 | done: | |
1370 | priv->scan_result_status = ret; | |
1371 | dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n", | |
1372 | __func__); | |
1373 | cfg80211_scan_done(priv->scan_request, | |
1374 | (priv->scan_result_status < 0)); | |
1375 | priv->scan_request = NULL; | |
1376 | kfree(scan_req); | |
1377 | } | |
1378 | ||
57f16b5d | 1379 | if (priv->assoc_request == 1) { |
5e6e3a92 BZ |
1380 | if (!priv->assoc_result) { |
1381 | cfg80211_connect_result(priv->netdev, priv->cfg_bssid, | |
1382 | NULL, 0, NULL, 0, | |
1383 | WLAN_STATUS_SUCCESS, | |
1384 | GFP_KERNEL); | |
1385 | dev_dbg(priv->adapter->dev, | |
1386 | "info: associated to bssid %pM successfully\n", | |
1387 | priv->cfg_bssid); | |
1388 | } else { | |
1389 | dev_dbg(priv->adapter->dev, | |
1390 | "info: association to bssid %pM failed\n", | |
1391 | priv->cfg_bssid); | |
1392 | memset(priv->cfg_bssid, 0, ETH_ALEN); | |
1393 | } | |
1394 | priv->assoc_request = 0; | |
1395 | priv->assoc_result = 0; | |
1396 | } | |
1397 | ||
57f16b5d | 1398 | if (priv->ibss_join_request == 1) { |
5e6e3a92 BZ |
1399 | if (!priv->ibss_join_result) { |
1400 | cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, | |
1401 | GFP_KERNEL); | |
1402 | dev_dbg(priv->adapter->dev, | |
1403 | "info: joined/created adhoc network with bssid" | |
1404 | " %pM successfully\n", priv->cfg_bssid); | |
1405 | } else { | |
1406 | dev_dbg(priv->adapter->dev, | |
1407 | "info: failed creating/joining adhoc network\n"); | |
1408 | } | |
1409 | priv->ibss_join_request = 0; | |
1410 | priv->ibss_join_result = 0; | |
1411 | } | |
1412 | ||
1413 | if (priv->disconnect) { | |
1414 | memset(priv->cfg_bssid, 0, ETH_ALEN); | |
1415 | priv->disconnect = 0; | |
1416 | } | |
5e6e3a92 | 1417 | } |