projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
mwifiex: fix regression in WEP security mode
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
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 {
37 switch (channel_type) {
38 case NL80211_CHAN_NO_HT:
39 case NL80211_CHAN_HT20:
40 return NO_SEC_CHANNEL;
41 case NL80211_CHAN_HT40PLUS:
42 return SEC_CHANNEL_ABOVE;
43 case NL80211_CHAN_HT40MINUS:
44 return SEC_CHANNEL_BELOW;
45 default:
46 return NO_SEC_CHANNEL;
47 }
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 {
62 switch (channel_type) {
63 case NO_SEC_CHANNEL:
64 return NL80211_CHAN_HT20;
65 case SEC_CHANNEL_ABOVE:
66 return NL80211_CHAN_HT40PLUS;
67 case SEC_CHANNEL_BELOW:
68 return NL80211_CHAN_HT40MINUS;
69 default:
70 return NL80211_CHAN_HT20;
71 }
72 }
73
74 /*
75 * This function checks whether WEP is set.
76 */
77 static int
78 mwifiex_is_alg_wep(u32 cipher)
79 {
80 switch (cipher) {
81 case WLAN_CIPHER_SUITE_WEP40:
82 case WLAN_CIPHER_SUITE_WEP104:
83 return 1;
84 default:
85 break;
86 }
87
88 return 0;
89 }
90
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);
107
108 if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
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 {
125 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
126 struct mwifiex_power_cfg power_cfg;
127
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
135 return mwifiex_set_tx_power(priv, &power_cfg);
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 {
148 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
149 u32 ps_mode;
150
151 if (timeout)
152 wiphy_dbg(wiphy,
153 "info: ignoring the timeout value"
154 " for IEEE power save\n");
155
156 ps_mode = enabled;
157
158 return mwifiex_drv_set_power(priv, &ps_mode);
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);
170
171 /* Return if WEP key not configured */
172 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
173 return 0;
174
175 if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
176 wiphy_err(wiphy, "set default Tx key index\n");
177 return -EFAULT;
178 }
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);
192
193 if (mwifiex_set_encode(priv, params->key, params->key_len,
194 key_index, 0)) {
195 wiphy_err(wiphy, "crypto keys added\n");
196 return -EFAULT;
197 }
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;
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;
276
277 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
278 HostCmd_ACT_GEN_SET, 0, NULL)) {
279 wiphy_err(wiphy, "11D: setting domain info in FW\n");
280 return -1;
281 }
282
283 return 0;
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;
333 struct mwifiex_ds_band_cfg band_cfg;
334 u32 config_bands = 0;
335 struct wiphy *wiphy = priv->wdev->wiphy;
336
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;
344 if (priv->bss_mode == NL80211_IFTYPE_STATION
345 || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
346 band_cfg.config_bands = config_bands;
347 } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
348 band_cfg.config_bands = config_bands;
349 band_cfg.adhoc_start_band = config_bands;
350 }
351
352 band_cfg.sec_chan_offset =
353 mwifiex_cfg80211_channel_type_to_mwifiex_channels
354 (channel_type);
355
356 if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
357 return -EFAULT;
358
359 mwifiex_send_domain_info_cmd_fw(wiphy);
360 }
361
362 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
363 "mode %d\n", config_bands, band_cfg.sec_chan_offset,
364 priv->bss_mode);
365 if (!chan)
366 return 0;
367
368 memset(&cfp, 0, sizeof(cfp));
369 cfp.freq = chan->center_freq;
370 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
371
372 if (mwifiex_bss_set_channel(priv, &cfp))
373 return -EFAULT;
374
375 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
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 *
402 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
403 * and MWIFIEX_FRAG_MAX_VALUE.
404 */
405 static int
406 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
407 {
408 int ret;
409
410 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
411 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
412 return -EINVAL;
413
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);
418
419 return ret;
420 }
421
422 /*
423 * This function sets the RTS threshold.
424
425 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
426 * and MWIFIEX_RTS_MAX_VALUE.
427 */
428 static int
429 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
430 {
431 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
432 rts_thr = MWIFIEX_RTS_MAX_VALUE;
433
434 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
435 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
436 &rts_thr);
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);
449 int ret = 0;
450
451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
452 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
453 if (ret)
454 return ret;
455 }
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.
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 {
472 int ret;
473 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
474
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;
481
482 switch (type) {
483 case NL80211_IFTYPE_ADHOC:
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:
488 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
489 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
490 break;
491 case NL80211_IFTYPE_UNSPECIFIED:
492 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
493 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
494 return 0;
495 default:
496 wiphy_err(wiphy, "unknown interface type: %d\n", type);
497 return -EINVAL;
498 }
499
500 mwifiex_deauthenticate(priv, NULL);
501
502 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
503
504 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
505 HostCmd_ACT_GEN_SET, 0, NULL);
506
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));
536 if (mwifiex_get_signal_info(priv, &signal)) {
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);
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
575 return mwifiex_dump_station_info(priv, sinfo);
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;
690 if (mwifiex_deauthenticate(priv, NULL))
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 {
714 struct ieee80211_channel *chan;
715 struct mwifiex_bss_info bss_info;
716 int ie_len;
717 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
718
719 if (mwifiex_get_bss_info(priv, &bss_info))
720 return -1;
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
739 return 0;
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 {
764 struct mwifiex_bssdescriptor *scan_table;
765 int i, j;
766 struct ieee80211_channel *chan;
767 u8 *ie, *ie_buf;
768 u32 ie_len;
769 u8 *beacon;
770 int beacon_size;
771 u8 element_id, element_len;
772
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
781 scan_table = priv->adapter->scan_table;
782 for (i = 0; i < priv->adapter->num_in_scan_table; i++) {
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;
846 memcpy(&ie[sizeof(struct ieee_types_header)],
847 (u8 *) beacon
848 + sizeof(struct ieee_types_header),
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,
865 0, scan_table[i].cap_info_bitmap,
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;
897 int ret, auth_type = 0;
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 */
915 mwifiex_deauthenticate(priv, NULL);
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
924 if (mode == NL80211_IFTYPE_ADHOC) {
925 /* "privacy" is set only for ad-hoc mode */
926 if (privacy) {
927 /*
928 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
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 */
933 priv->sec_info.encryption_mode =
934 WLAN_CIPHER_SUITE_WEP104;
935 priv->sec_info.authentication_mode =
936 NL80211_AUTHTYPE_OPEN_SYSTEM;
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)
945 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
946 else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
947 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
948
949 if (sme->crypto.n_ciphers_pairwise) {
950 priv->sec_info.encryption_mode =
951 sme->crypto.ciphers_pairwise[0];
952 priv->sec_info.authentication_mode = auth_type;
953 }
954
955 if (sme->crypto.cipher_group) {
956 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
957 priv->sec_info.authentication_mode = auth_type;
958 }
959 if (sme->ie)
960 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
961
962 if (sme->key) {
963 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
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 */
973 if (mwifiex_request_scan(priv, &req_ssid)) {
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
981 if (mode != NL80211_IFTYPE_ADHOC) {
982 if (mwifiex_find_best_bss(priv, &ssid_bssid))
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
998 if (!netif_queue_stopped(priv->netdev))
999 netif_stop_queue(priv->netdev);
1000
1001 if (mwifiex_bss_start(priv, &ssid_bssid))
1002 return -EFAULT;
1003
1004 if (mode == NL80211_IFTYPE_ADHOC) {
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;
1027
1028 if (priv->assoc_request)
1029 return -EBUSY;
1030
1031 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1032 wiphy_err(wiphy, "received infra assoc request "
1033 "when station is in ibss mode\n");
1034 goto done;
1035 }
1036
1037 priv->assoc_request = -EINPROGRESS;
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,
1043 priv->bss_mode, sme->channel, sme, 0);
1044
1045 priv->assoc_request = 1;
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;
1064
1065 if (priv->ibss_join_request)
1066 return -EBUSY;
1067
1068 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1069 wiphy_err(wiphy, "request to join ibss received "
1070 "when station is not in ibss mode\n");
1071 goto done;
1072 }
1073
1074 priv->ibss_join_request = -EINPROGRESS;
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,
1080 params->bssid, priv->bss_mode,
1081 params->channel, NULL, params->privacy);
1082
1083 priv->ibss_join_request = 1;
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);
1108 if (mwifiex_deauthenticate(priv, NULL))
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
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
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;
1162 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1163 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1164
1165 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1166
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);
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);
1202 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1203 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
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 {
1240 int ret;
1241 void *wdev_priv;
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 *));
1253 if (!wdev->wiphy) {
1254 kfree(wdev);
1255 return -ENOMEM;
1256 }
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);
1261
1262 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
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 }
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
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 set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1292
1293 ret = wiphy_register(wdev->wiphy);
1294 if (ret < 0) {
1295 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1296 __func__);
1297 wiphy_free(wdev->wiphy);
1298 kfree(wdev);
1299 return ret;
1300 } else {
1301 dev_dbg(priv->adapter->dev,
1302 "info: successfully registered wiphy device\n");
1303 }
1304
1305 dev_net_set(dev, wiphy_net(wdev->wiphy));
1306 dev->ieee80211_ptr = wdev;
1307 memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
1308 memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
1309 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
1310 priv->wdev = wdev;
1311
1312 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1313 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1314 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1315
1316 return ret;
1317 }
1318
1319 /*
1320 * This function handles the result of different pending network operations.
1321 *
1322 * The following operations are handled and CFG802.11 subsystem is
1323 * notified accordingly -
1324 * - Scan request completion
1325 * - Association request completion
1326 * - IBSS join request completion
1327 * - Disconnect request completion
1328 */
1329 void
1330 mwifiex_cfg80211_results(struct work_struct *work)
1331 {
1332 struct mwifiex_private *priv =
1333 container_of(work, struct mwifiex_private, cfg_workqueue);
1334 struct mwifiex_user_scan_cfg *scan_req;
1335 int ret = 0, i;
1336 struct ieee80211_channel *chan;
1337
1338 if (priv->scan_request) {
1339 scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1340 GFP_KERNEL);
1341 if (!scan_req) {
1342 dev_err(priv->adapter->dev, "failed to alloc "
1343 "scan_req\n");
1344 return;
1345 }
1346 for (i = 0; i < priv->scan_request->n_ssids; i++) {
1347 memcpy(scan_req->ssid_list[i].ssid,
1348 priv->scan_request->ssids[i].ssid,
1349 priv->scan_request->ssids[i].ssid_len);
1350 scan_req->ssid_list[i].max_len =
1351 priv->scan_request->ssids[i].ssid_len;
1352 }
1353 for (i = 0; i < priv->scan_request->n_channels; i++) {
1354 chan = priv->scan_request->channels[i];
1355 scan_req->chan_list[i].chan_number = chan->hw_value;
1356 scan_req->chan_list[i].radio_type = chan->band;
1357 if (chan->flags & IEEE80211_CHAN_DISABLED)
1358 scan_req->chan_list[i].scan_type =
1359 MWIFIEX_SCAN_TYPE_PASSIVE;
1360 else
1361 scan_req->chan_list[i].scan_type =
1362 MWIFIEX_SCAN_TYPE_ACTIVE;
1363 scan_req->chan_list[i].scan_time = 0;
1364 }
1365 if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
1366 ret = -EFAULT;
1367 goto done;
1368 }
1369 if (mwifiex_inform_bss_from_scan_result(priv, NULL))
1370 ret = -EFAULT;
1371 done:
1372 priv->scan_result_status = ret;
1373 dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
1374 __func__);
1375 cfg80211_scan_done(priv->scan_request,
1376 (priv->scan_result_status < 0));
1377 priv->scan_request = NULL;
1378 kfree(scan_req);
1379 }
1380
1381 if (priv->assoc_request == 1) {
1382 if (!priv->assoc_result) {
1383 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1384 NULL, 0, NULL, 0,
1385 WLAN_STATUS_SUCCESS,
1386 GFP_KERNEL);
1387 dev_dbg(priv->adapter->dev,
1388 "info: associated to bssid %pM successfully\n",
1389 priv->cfg_bssid);
1390 } else {
1391 dev_dbg(priv->adapter->dev,
1392 "info: association to bssid %pM failed\n",
1393 priv->cfg_bssid);
1394 memset(priv->cfg_bssid, 0, ETH_ALEN);
1395 }
1396 priv->assoc_request = 0;
1397 priv->assoc_result = 0;
1398 }
1399
1400 if (priv->ibss_join_request == 1) {
1401 if (!priv->ibss_join_result) {
1402 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1403 GFP_KERNEL);
1404 dev_dbg(priv->adapter->dev,
1405 "info: joined/created adhoc network with bssid"
1406 " %pM successfully\n", priv->cfg_bssid);
1407 } else {
1408 dev_dbg(priv->adapter->dev,
1409 "info: failed creating/joining adhoc network\n");
1410 }
1411 priv->ibss_join_request = 0;
1412 priv->ibss_join_result = 0;
1413 }
1414
1415 if (priv->disconnect) {
1416 memset(priv->cfg_bssid, 0, ETH_ALEN);
1417 priv->disconnect = 0;
1418 }
1419 }
Linux kernel - Deliverables
This page took 0.097155 seconds and 5 git commands to generate.