1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, 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 static char *reg_alpha2;
24 module_param(reg_alpha2, charp, 0);
25
26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
27 {
28 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
29 BIT(NL80211_IFTYPE_P2P_GO) |
30 BIT(NL80211_IFTYPE_P2P_CLIENT),
31 },
32 {
33 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
34 },
35 };
36
37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
38 .limits = mwifiex_ap_sta_limits,
39 .num_different_channels = 1,
40 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
41 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
42 .beacon_int_infra_match = true,
43 };
44
45 /*
46 * This function maps the nl802.11 channel type into driver channel type.
47 *
48 * The mapping is as follows -
49 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
50 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
51 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
52 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
53 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
54 */
mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
56 {
57 switch (chan_type) {
58 case NL80211_CHAN_NO_HT:
59 case NL80211_CHAN_HT20:
60 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
61 case NL80211_CHAN_HT40PLUS:
62 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
63 case NL80211_CHAN_HT40MINUS:
64 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
65 default:
66 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
67 }
68 }
69
70 /*
71 * This function checks whether WEP is set.
72 */
73 static int
mwifiex_is_alg_wep(u32 cipher)74 mwifiex_is_alg_wep(u32 cipher)
75 {
76 switch (cipher) {
77 case WLAN_CIPHER_SUITE_WEP40:
78 case WLAN_CIPHER_SUITE_WEP104:
79 return 1;
80 default:
81 break;
82 }
83
84 return 0;
85 }
86
87 /*
88 * This function retrieves the private structure from kernel wiphy structure.
89 */
mwifiex_cfg80211_get_adapter(struct wiphy * wiphy)90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
91 {
92 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
93 }
94
95 /*
96 * CFG802.11 operation handler to delete a network key.
97 */
98 static int
mwifiex_cfg80211_del_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool pairwise,const u8 * mac_addr)99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
100 u8 key_index, bool pairwise, const u8 *mac_addr)
101 {
102 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
103 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
104 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
105
106 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
107 wiphy_err(wiphy, "deleting the crypto keys\n");
108 return -EFAULT;
109 }
110
111 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
112 return 0;
113 }
114
115 /*
116 * This function forms an skb for management frame.
117 */
118 static int
mwifiex_form_mgmt_frame(struct sk_buff * skb,const u8 * buf,size_t len)119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
120 {
121 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
122 u16 pkt_len;
123 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
124
125 pkt_len = len + ETH_ALEN;
126
127 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
128 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
129 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
130
131 memcpy(skb_push(skb, sizeof(tx_control)),
132 &tx_control, sizeof(tx_control));
133
134 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
135
136 /* Add packet data and address4 */
137 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
138 sizeof(struct ieee80211_hdr_3addr));
139 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
140 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
141 buf + sizeof(struct ieee80211_hdr_3addr),
142 len - sizeof(struct ieee80211_hdr_3addr));
143
144 skb->priority = LOW_PRIO_TID;
145 __net_timestamp(skb);
146
147 return 0;
148 }
149
150 /*
151 * CFG802.11 operation handler to transmit a management frame.
152 */
153 static int
mwifiex_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
155 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
156 {
157 const u8 *buf = params->buf;
158 size_t len = params->len;
159 struct sk_buff *skb;
160 u16 pkt_len;
161 const struct ieee80211_mgmt *mgmt;
162 struct mwifiex_txinfo *tx_info;
163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
164
165 if (!buf || !len) {
166 wiphy_err(wiphy, "invalid buffer and length\n");
167 return -EFAULT;
168 }
169
170 mgmt = (const struct ieee80211_mgmt *)buf;
171 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
172 ieee80211_is_probe_resp(mgmt->frame_control)) {
173 /* Since we support offload probe resp, we need to skip probe
174 * resp in AP or GO mode */
175 wiphy_dbg(wiphy,
176 "info: skip to send probe resp in AP or GO mode\n");
177 return 0;
178 }
179
180 pkt_len = len + ETH_ALEN;
181 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
182 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
183 pkt_len + sizeof(pkt_len));
184
185 if (!skb) {
186 wiphy_err(wiphy, "allocate skb failed for management frame\n");
187 return -ENOMEM;
188 }
189
190 tx_info = MWIFIEX_SKB_TXCB(skb);
191 memset(tx_info, 0, sizeof(*tx_info));
192 tx_info->bss_num = priv->bss_num;
193 tx_info->bss_type = priv->bss_type;
194 tx_info->pkt_len = pkt_len;
195
196 mwifiex_form_mgmt_frame(skb, buf, len);
197 *cookie = prandom_u32() | 1;
198
199 if (ieee80211_is_action(mgmt->frame_control))
200 skb = mwifiex_clone_skb_for_tx_status(priv,
201 skb,
202 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
203 else
204 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
205 GFP_ATOMIC);
206
207 mwifiex_queue_tx_pkt(priv, skb);
208
209 wiphy_dbg(wiphy, "info: management frame transmitted\n");
210 return 0;
211 }
212
213 /*
214 * CFG802.11 operation handler to register a mgmt frame.
215 */
216 static void
mwifiex_cfg80211_mgmt_frame_register(struct wiphy * wiphy,struct wireless_dev * wdev,u16 frame_type,bool reg)217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 u16 frame_type, bool reg)
220 {
221 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
222 u32 mask;
223
224 if (reg)
225 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
226 else
227 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
228
229 if (mask != priv->mgmt_frame_mask) {
230 priv->mgmt_frame_mask = mask;
231 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
232 HostCmd_ACT_GEN_SET, 0,
233 &priv->mgmt_frame_mask, false);
234 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
235 }
236 }
237
238 /*
239 * CFG802.11 operation handler to remain on channel.
240 */
241 static int
mwifiex_cfg80211_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
243 struct wireless_dev *wdev,
244 struct ieee80211_channel *chan,
245 unsigned int duration, u64 *cookie)
246 {
247 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
248 int ret;
249
250 if (!chan || !cookie) {
251 wiphy_err(wiphy, "Invalid parameter for ROC\n");
252 return -EINVAL;
253 }
254
255 if (priv->roc_cfg.cookie) {
256 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
257 priv->roc_cfg.cookie);
258 return -EBUSY;
259 }
260
261 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
262 duration);
263
264 if (!ret) {
265 *cookie = prandom_u32() | 1;
266 priv->roc_cfg.cookie = *cookie;
267 priv->roc_cfg.chan = *chan;
268
269 cfg80211_ready_on_channel(wdev, *cookie, chan,
270 duration, GFP_ATOMIC);
271
272 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
273 }
274
275 return ret;
276 }
277
278 /*
279 * CFG802.11 operation handler to cancel remain on channel.
280 */
281 static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
283 struct wireless_dev *wdev, u64 cookie)
284 {
285 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
286 int ret;
287
288 if (cookie != priv->roc_cfg.cookie)
289 return -ENOENT;
290
291 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
292 &priv->roc_cfg.chan, 0);
293
294 if (!ret) {
295 cfg80211_remain_on_channel_expired(wdev, cookie,
296 &priv->roc_cfg.chan,
297 GFP_ATOMIC);
298
299 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
300
301 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
302 }
303
304 return ret;
305 }
306
307 /*
308 * CFG802.11 operation handler to set Tx power.
309 */
310 static int
mwifiex_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
312 struct wireless_dev *wdev,
313 enum nl80211_tx_power_setting type,
314 int mbm)
315 {
316 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
317 struct mwifiex_private *priv;
318 struct mwifiex_power_cfg power_cfg;
319 int dbm = MBM_TO_DBM(mbm);
320
321 if (type == NL80211_TX_POWER_FIXED) {
322 power_cfg.is_power_auto = 0;
323 power_cfg.power_level = dbm;
324 } else {
325 power_cfg.is_power_auto = 1;
326 }
327
328 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
329
330 return mwifiex_set_tx_power(priv, &power_cfg);
331 }
332
333 /*
334 * CFG802.11 operation handler to set Power Save option.
335 *
336 * The timeout value, if provided, is currently ignored.
337 */
338 static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
340 struct net_device *dev,
341 bool enabled, int timeout)
342 {
343 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
344 u32 ps_mode;
345
346 if (timeout)
347 wiphy_dbg(wiphy,
348 "info: ignore timeout value for IEEE Power Save\n");
349
350 ps_mode = enabled;
351
352 return mwifiex_drv_set_power(priv, &ps_mode);
353 }
354
355 /*
356 * CFG802.11 operation handler to set the default network key.
357 */
358 static int
mwifiex_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool unicast,bool multicast)359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
360 u8 key_index, bool unicast,
361 bool multicast)
362 {
363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
364
365 /* Return if WEP key not configured */
366 if (!priv->sec_info.wep_enabled)
367 return 0;
368
369 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
370 priv->wep_key_curr_index = key_index;
371 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
372 NULL, 0)) {
373 wiphy_err(wiphy, "set default Tx key index\n");
374 return -EFAULT;
375 }
376
377 return 0;
378 }
379
380 /*
381 * CFG802.11 operation handler to add a network key.
382 */
383 static int
mwifiex_cfg80211_add_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
385 u8 key_index, bool pairwise, const u8 *mac_addr,
386 struct key_params *params)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
389 struct mwifiex_wep_key *wep_key;
390 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
391 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
392
393 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
394 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
395 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
396 if (params->key && params->key_len) {
397 wep_key = &priv->wep_key[key_index];
398 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
399 memcpy(wep_key->key_material, params->key,
400 params->key_len);
401 wep_key->key_index = key_index;
402 wep_key->key_length = params->key_len;
403 priv->sec_info.wep_enabled = 1;
404 }
405 return 0;
406 }
407
408 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
409 key_index, peer_mac, 0)) {
410 wiphy_err(wiphy, "crypto keys added\n");
411 return -EFAULT;
412 }
413
414 return 0;
415 }
416
417 /*
418 * This function sends domain information to the firmware.
419 *
420 * The following information are passed to the firmware -
421 * - Country codes
422 * - Sub bands (first channel, number of channels, maximum Tx power)
423 */
mwifiex_send_domain_info_cmd_fw(struct wiphy * wiphy)424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
425 {
426 u8 no_of_triplet = 0;
427 struct ieee80211_country_ie_triplet *t;
428 u8 no_of_parsed_chan = 0;
429 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
430 u8 i, flag = 0;
431 enum ieee80211_band band;
432 struct ieee80211_supported_band *sband;
433 struct ieee80211_channel *ch;
434 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
435 struct mwifiex_private *priv;
436 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
437
438 /* Set country code */
439 domain_info->country_code[0] = adapter->country_code[0];
440 domain_info->country_code[1] = adapter->country_code[1];
441 domain_info->country_code[2] = ' ';
442
443 band = mwifiex_band_to_radio_type(adapter->config_bands);
444 if (!wiphy->bands[band]) {
445 wiphy_err(wiphy, "11D: setting domain info in FW\n");
446 return -1;
447 }
448
449 sband = wiphy->bands[band];
450
451 for (i = 0; i < sband->n_channels ; i++) {
452 ch = &sband->channels[i];
453 if (ch->flags & IEEE80211_CHAN_DISABLED)
454 continue;
455
456 if (!flag) {
457 flag = 1;
458 first_chan = (u32) ch->hw_value;
459 next_chan = first_chan;
460 max_pwr = ch->max_power;
461 no_of_parsed_chan = 1;
462 continue;
463 }
464
465 if (ch->hw_value == next_chan + 1 &&
466 ch->max_power == max_pwr) {
467 next_chan++;
468 no_of_parsed_chan++;
469 } else {
470 t = &domain_info->triplet[no_of_triplet];
471 t->chans.first_channel = first_chan;
472 t->chans.num_channels = no_of_parsed_chan;
473 t->chans.max_power = max_pwr;
474 no_of_triplet++;
475 first_chan = (u32) ch->hw_value;
476 next_chan = first_chan;
477 max_pwr = ch->max_power;
478 no_of_parsed_chan = 1;
479 }
480 }
481
482 if (flag) {
483 t = &domain_info->triplet[no_of_triplet];
484 t->chans.first_channel = first_chan;
485 t->chans.num_channels = no_of_parsed_chan;
486 t->chans.max_power = max_pwr;
487 no_of_triplet++;
488 }
489
490 domain_info->no_of_triplet = no_of_triplet;
491
492 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
493
494 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
495 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
496 wiphy_err(wiphy, "11D: setting domain info in FW\n");
497 return -1;
498 }
499
500 return 0;
501 }
502
503 /*
504 * CFG802.11 regulatory domain callback function.
505 *
506 * This function is called when the regulatory domain is changed due to the
507 * following reasons -
508 * - Set by driver
509 * - Set by system core
510 * - Set by user
511 * - Set bt Country IE
512 */
mwifiex_reg_notifier(struct wiphy * wiphy,struct regulatory_request * request)513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
514 struct regulatory_request *request)
515 {
516 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
517 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
518 MWIFIEX_BSS_ROLE_ANY);
519
520 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
521 request->alpha2[0], request->alpha2[1]);
522
523 switch (request->initiator) {
524 case NL80211_REGDOM_SET_BY_DRIVER:
525 case NL80211_REGDOM_SET_BY_CORE:
526 case NL80211_REGDOM_SET_BY_USER:
527 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
528 break;
529 default:
530 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
531 request->initiator);
532 return;
533 }
534
535 /* Don't send world or same regdom info to firmware */
536 if (strncmp(request->alpha2, "00", 2) &&
537 strncmp(request->alpha2, adapter->country_code,
538 sizeof(request->alpha2))) {
539 memcpy(adapter->country_code, request->alpha2,
540 sizeof(request->alpha2));
541 mwifiex_send_domain_info_cmd_fw(wiphy);
542 mwifiex_dnld_txpwr_table(priv);
543 }
544 }
545
546 /*
547 * This function sets the fragmentation threshold.
548 *
549 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
550 * and MWIFIEX_FRAG_MAX_VALUE.
551 */
552 static int
mwifiex_set_frag(struct mwifiex_private * priv,u32 frag_thr)553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
554 {
555 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
556 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
557 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
558
559 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
560 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
561 &frag_thr, true);
562 }
563
564 /*
565 * This function sets the RTS threshold.
566
567 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
568 * and MWIFIEX_RTS_MAX_VALUE.
569 */
570 static int
mwifiex_set_rts(struct mwifiex_private * priv,u32 rts_thr)571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
572 {
573 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
574 rts_thr = MWIFIEX_RTS_MAX_VALUE;
575
576 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
577 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
578 &rts_thr, true);
579 }
580
581 /*
582 * CFG802.11 operation handler to set wiphy parameters.
583 *
584 * This function can be used to set the RTS threshold and the
585 * Fragmentation threshold of the driver.
586 */
587 static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
589 {
590 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
591 struct mwifiex_private *priv;
592 struct mwifiex_uap_bss_param *bss_cfg;
593 int ret;
594
595 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
596
597 switch (priv->bss_role) {
598 case MWIFIEX_BSS_ROLE_UAP:
599 if (priv->bss_started) {
600 dev_err(adapter->dev,
601 "cannot change wiphy params when bss started");
602 return -EINVAL;
603 }
604
605 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
606 if (!bss_cfg)
607 return -ENOMEM;
608
609 mwifiex_set_sys_config_invalid_data(bss_cfg);
610
611 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
612 bss_cfg->rts_threshold = wiphy->rts_threshold;
613 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
614 bss_cfg->frag_threshold = wiphy->frag_threshold;
615 if (changed & WIPHY_PARAM_RETRY_LONG)
616 bss_cfg->retry_limit = wiphy->retry_long;
617
618 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
619 HostCmd_ACT_GEN_SET,
620 UAP_BSS_PARAMS_I, bss_cfg,
621 false);
622
623 kfree(bss_cfg);
624 if (ret) {
625 wiphy_err(wiphy, "Failed to set wiphy phy params\n");
626 return ret;
627 }
628 break;
629
630 case MWIFIEX_BSS_ROLE_STA:
631 if (priv->media_connected) {
632 dev_err(adapter->dev,
633 "cannot change wiphy params when connected");
634 return -EINVAL;
635 }
636 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
637 ret = mwifiex_set_rts(priv,
638 wiphy->rts_threshold);
639 if (ret)
640 return ret;
641 }
642 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
643 ret = mwifiex_set_frag(priv,
644 wiphy->frag_threshold);
645 if (ret)
646 return ret;
647 }
648 break;
649 }
650
651 return 0;
652 }
653
654 static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private * priv)655 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
656 {
657 u16 mode = P2P_MODE_DISABLE;
658
659 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
660 HostCmd_ACT_GEN_SET, 0, &mode, true))
661 return -1;
662
663 return 0;
664 }
665
666 /*
667 * This function initializes the functionalities for P2P client.
668 * The P2P client initialization sequence is:
669 * disable -> device -> client
670 */
671 static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private * priv)672 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
673 {
674 u16 mode;
675
676 if (mwifiex_cfg80211_deinit_p2p(priv))
677 return -1;
678
679 mode = P2P_MODE_DEVICE;
680 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
681 HostCmd_ACT_GEN_SET, 0, &mode, true))
682 return -1;
683
684 mode = P2P_MODE_CLIENT;
685 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
686 HostCmd_ACT_GEN_SET, 0, &mode, true))
687 return -1;
688
689 return 0;
690 }
691
692 /*
693 * This function initializes the functionalities for P2P GO.
694 * The P2P GO initialization sequence is:
695 * disable -> device -> GO
696 */
697 static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private * priv)698 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
699 {
700 u16 mode;
701
702 if (mwifiex_cfg80211_deinit_p2p(priv))
703 return -1;
704
705 mode = P2P_MODE_DEVICE;
706 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
707 HostCmd_ACT_GEN_SET, 0, &mode, true))
708 return -1;
709
710 mode = P2P_MODE_GO;
711 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
712 HostCmd_ACT_GEN_SET, 0, &mode, true))
713 return -1;
714
715 return 0;
716 }
717
mwifiex_deinit_priv_params(struct mwifiex_private * priv)718 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
719 {
720 struct mwifiex_adapter *adapter = priv->adapter;
721 unsigned long flags;
722
723 priv->mgmt_frame_mask = 0;
724 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
725 HostCmd_ACT_GEN_SET, 0,
726 &priv->mgmt_frame_mask, false)) {
727 dev_warn(priv->adapter->dev,
728 "could not unregister mgmt frame rx\n");
729 return -1;
730 }
731
732 mwifiex_deauthenticate(priv, NULL);
733
734 spin_lock_irqsave(&adapter->main_proc_lock, flags);
735 adapter->main_locked = true;
736 if (adapter->mwifiex_processing) {
737 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
738 flush_workqueue(adapter->workqueue);
739 } else {
740 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
741 }
742
743 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
744 adapter->rx_locked = true;
745 if (adapter->rx_processing) {
746 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
747 flush_workqueue(adapter->rx_workqueue);
748 } else {
749 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
750 }
751
752 mwifiex_free_priv(priv);
753 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
754 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
755 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
756
757 return 0;
758 }
759
760 static int
mwifiex_init_new_priv_params(struct mwifiex_private * priv,struct net_device * dev,enum nl80211_iftype type)761 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
762 struct net_device *dev,
763 enum nl80211_iftype type)
764 {
765 struct mwifiex_adapter *adapter = priv->adapter;
766 unsigned long flags;
767
768 mwifiex_init_priv(priv);
769
770 priv->bss_mode = type;
771 priv->wdev.iftype = type;
772
773 mwifiex_init_priv_params(priv, priv->netdev);
774 priv->bss_started = 0;
775
776 switch (type) {
777 case NL80211_IFTYPE_STATION:
778 case NL80211_IFTYPE_ADHOC:
779 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
780 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
781 break;
782 case NL80211_IFTYPE_P2P_CLIENT:
783 case NL80211_IFTYPE_P2P_GO:
784 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
785 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
786 break;
787 case NL80211_IFTYPE_AP:
788 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
789 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
790 break;
791 default:
792 dev_err(priv->adapter->dev,
793 "%s: changing to %d not supported\n",
794 dev->name, type);
795 return -EOPNOTSUPP;
796 }
797
798 spin_lock_irqsave(&adapter->main_proc_lock, flags);
799 adapter->main_locked = false;
800 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
801
802 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
803 adapter->rx_locked = false;
804 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
805
806 return 0;
807 }
808
809 static int
mwifiex_change_vif_to_p2p(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)810 mwifiex_change_vif_to_p2p(struct net_device *dev,
811 enum nl80211_iftype curr_iftype,
812 enum nl80211_iftype type, u32 *flags,
813 struct vif_params *params)
814 {
815 struct mwifiex_private *priv;
816 struct mwifiex_adapter *adapter;
817
818 priv = mwifiex_netdev_get_priv(dev);
819
820 if (!priv)
821 return -1;
822
823 adapter = priv->adapter;
824
825 if (adapter->curr_iface_comb.p2p_intf ==
826 adapter->iface_limit.p2p_intf) {
827 dev_err(adapter->dev,
828 "cannot create multiple P2P ifaces\n");
829 return -1;
830 }
831
832 dev_dbg(priv->adapter->dev, "%s: changing role to p2p\n", dev->name);
833
834 if (mwifiex_deinit_priv_params(priv))
835 return -1;
836 if (mwifiex_init_new_priv_params(priv, dev, type))
837 return -1;
838
839 switch (type) {
840 case NL80211_IFTYPE_P2P_CLIENT:
841 if (mwifiex_cfg80211_init_p2p_client(priv))
842 return -EFAULT;
843 break;
844 case NL80211_IFTYPE_P2P_GO:
845 if (mwifiex_cfg80211_init_p2p_go(priv))
846 return -EFAULT;
847 break;
848 default:
849 dev_err(priv->adapter->dev,
850 "%s: changing to %d not supported\n",
851 dev->name, type);
852 return -EOPNOTSUPP;
853 }
854
855 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
856 HostCmd_ACT_GEN_SET, 0, NULL, true))
857 return -1;
858
859 if (mwifiex_sta_init_cmd(priv, false, false))
860 return -1;
861
862 switch (curr_iftype) {
863 case NL80211_IFTYPE_STATION:
864 case NL80211_IFTYPE_ADHOC:
865 adapter->curr_iface_comb.sta_intf--;
866 break;
867 case NL80211_IFTYPE_AP:
868 adapter->curr_iface_comb.uap_intf--;
869 break;
870 default:
871 break;
872 }
873
874 adapter->curr_iface_comb.p2p_intf++;
875 dev->ieee80211_ptr->iftype = type;
876
877 return 0;
878 }
879
880 static int
mwifiex_change_vif_to_sta_adhoc(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)881 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
882 enum nl80211_iftype curr_iftype,
883 enum nl80211_iftype type, u32 *flags,
884 struct vif_params *params)
885 {
886 struct mwifiex_private *priv;
887 struct mwifiex_adapter *adapter;
888
889 priv = mwifiex_netdev_get_priv(dev);
890
891 if (!priv)
892 return -1;
893
894 adapter = priv->adapter;
895
896 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
897 curr_iftype != NL80211_IFTYPE_P2P_GO) &&
898 (adapter->curr_iface_comb.sta_intf ==
899 adapter->iface_limit.sta_intf)) {
900 dev_err(adapter->dev,
901 "cannot create multiple station/adhoc ifaces\n");
902 return -1;
903 }
904
905 if (type == NL80211_IFTYPE_STATION)
906 dev_notice(adapter->dev,
907 "%s: changing role to station\n", dev->name);
908 else
909 dev_notice(adapter->dev,
910 "%s: changing role to adhoc\n", dev->name);
911
912 if (mwifiex_deinit_priv_params(priv))
913 return -1;
914 if (mwifiex_init_new_priv_params(priv, dev, type))
915 return -1;
916 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
917 HostCmd_ACT_GEN_SET, 0, NULL, true))
918 return -1;
919 if (mwifiex_sta_init_cmd(priv, false, false))
920 return -1;
921
922 switch (curr_iftype) {
923 case NL80211_IFTYPE_P2P_CLIENT:
924 case NL80211_IFTYPE_P2P_GO:
925 adapter->curr_iface_comb.p2p_intf--;
926 break;
927 case NL80211_IFTYPE_AP:
928 adapter->curr_iface_comb.uap_intf--;
929 break;
930 default:
931 break;
932 }
933
934 adapter->curr_iface_comb.sta_intf++;
935 dev->ieee80211_ptr->iftype = type;
936 return 0;
937 }
938
939 static int
mwifiex_change_vif_to_ap(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)940 mwifiex_change_vif_to_ap(struct net_device *dev,
941 enum nl80211_iftype curr_iftype,
942 enum nl80211_iftype type, u32 *flags,
943 struct vif_params *params)
944 {
945 struct mwifiex_private *priv;
946 struct mwifiex_adapter *adapter;
947
948 priv = mwifiex_netdev_get_priv(dev);
949
950 if (!priv)
951 return -1;
952
953 adapter = priv->adapter;
954
955 if (adapter->curr_iface_comb.uap_intf ==
956 adapter->iface_limit.uap_intf) {
957 dev_err(adapter->dev,
958 "cannot create multiple AP ifaces\n");
959 return -1;
960 }
961
962 dev_notice(adapter->dev, "%s: changing role to AP\n", dev->name);
963
964 if (mwifiex_deinit_priv_params(priv))
965 return -1;
966 if (mwifiex_init_new_priv_params(priv, dev, type))
967 return -1;
968 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
969 HostCmd_ACT_GEN_SET, 0, NULL, true))
970 return -1;
971 if (mwifiex_sta_init_cmd(priv, false, false))
972 return -1;
973
974 switch (curr_iftype) {
975 case NL80211_IFTYPE_P2P_CLIENT:
976 case NL80211_IFTYPE_P2P_GO:
977 adapter->curr_iface_comb.p2p_intf--;
978 break;
979 case NL80211_IFTYPE_STATION:
980 case NL80211_IFTYPE_ADHOC:
981 adapter->curr_iface_comb.sta_intf--;
982 break;
983 default:
984 break;
985 }
986
987 adapter->curr_iface_comb.uap_intf++;
988 dev->ieee80211_ptr->iftype = type;
989 return 0;
990 }
991 /*
992 * CFG802.11 operation handler to change interface type.
993 */
994 static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,u32 * flags,struct vif_params * params)995 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
996 struct net_device *dev,
997 enum nl80211_iftype type, u32 *flags,
998 struct vif_params *params)
999 {
1000 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1001 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1002
1003 switch (curr_iftype) {
1004 case NL80211_IFTYPE_ADHOC:
1005 switch (type) {
1006 case NL80211_IFTYPE_STATION:
1007 priv->bss_mode = type;
1008 priv->sec_info.authentication_mode =
1009 NL80211_AUTHTYPE_OPEN_SYSTEM;
1010 dev->ieee80211_ptr->iftype = type;
1011 mwifiex_deauthenticate(priv, NULL);
1012 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1013 HostCmd_ACT_GEN_SET, 0, NULL,
1014 true);
1015 case NL80211_IFTYPE_P2P_CLIENT:
1016 case NL80211_IFTYPE_P2P_GO:
1017 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1018 type, flags, params);
1019 case NL80211_IFTYPE_AP:
1020 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1021 flags, params);
1022 case NL80211_IFTYPE_UNSPECIFIED:
1023 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
1024 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
1025 return 0;
1026 default:
1027 wiphy_err(wiphy, "%s: changing to %d not supported\n",
1028 dev->name, type);
1029 return -EOPNOTSUPP;
1030 }
1031 break;
1032 case NL80211_IFTYPE_STATION:
1033 switch (type) {
1034 case NL80211_IFTYPE_ADHOC:
1035 priv->bss_mode = type;
1036 priv->sec_info.authentication_mode =
1037 NL80211_AUTHTYPE_OPEN_SYSTEM;
1038 dev->ieee80211_ptr->iftype = type;
1039 mwifiex_deauthenticate(priv, NULL);
1040 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1041 HostCmd_ACT_GEN_SET, 0, NULL,
1042 true);
1043 case NL80211_IFTYPE_P2P_CLIENT:
1044 case NL80211_IFTYPE_P2P_GO:
1045 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1046 type, flags, params);
1047 case NL80211_IFTYPE_AP:
1048 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1049 flags, params);
1050 case NL80211_IFTYPE_UNSPECIFIED:
1051 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
1052 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
1053 return 0;
1054 default:
1055 wiphy_err(wiphy, "%s: changing to %d not supported\n",
1056 dev->name, type);
1057 return -EOPNOTSUPP;
1058 }
1059 break;
1060 case NL80211_IFTYPE_AP:
1061 switch (type) {
1062 case NL80211_IFTYPE_ADHOC:
1063 case NL80211_IFTYPE_STATION:
1064 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1065 type, flags,
1066 params);
1067 break;
1068 case NL80211_IFTYPE_P2P_CLIENT:
1069 case NL80211_IFTYPE_P2P_GO:
1070 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1071 type, flags, params);
1072 case NL80211_IFTYPE_UNSPECIFIED:
1073 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
1074 case NL80211_IFTYPE_AP: /* This shouldn't happen */
1075 return 0;
1076 default:
1077 wiphy_err(wiphy, "%s: changing to %d not supported\n",
1078 dev->name, type);
1079 return -EOPNOTSUPP;
1080 }
1081 break;
1082 case NL80211_IFTYPE_P2P_CLIENT:
1083 case NL80211_IFTYPE_P2P_GO:
1084 switch (type) {
1085 case NL80211_IFTYPE_STATION:
1086 if (mwifiex_cfg80211_init_p2p_client(priv))
1087 return -EFAULT;
1088 dev->ieee80211_ptr->iftype = type;
1089 break;
1090 case NL80211_IFTYPE_ADHOC:
1091 if (mwifiex_cfg80211_deinit_p2p(priv))
1092 return -EFAULT;
1093 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1094 type, flags,
1095 params);
1096 break;
1097 case NL80211_IFTYPE_AP:
1098 if (mwifiex_cfg80211_deinit_p2p(priv))
1099 return -EFAULT;
1100 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1101 flags, params);
1102 case NL80211_IFTYPE_UNSPECIFIED:
1103 wiphy_warn(wiphy, "%s: kept type as P2P\n", dev->name);
1104 case NL80211_IFTYPE_P2P_CLIENT:
1105 case NL80211_IFTYPE_P2P_GO:
1106 return 0;
1107 default:
1108 wiphy_err(wiphy, "%s: changing to %d not supported\n",
1109 dev->name, type);
1110 return -EOPNOTSUPP;
1111 }
1112 break;
1113 default:
1114 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
1115 dev->name, dev->ieee80211_ptr->iftype);
1116 return -EOPNOTSUPP;
1117 }
1118
1119
1120 return 0;
1121 }
1122
1123 static void
mwifiex_parse_htinfo(struct mwifiex_private * priv,u8 tx_htinfo,struct rate_info * rate)1124 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1125 struct rate_info *rate)
1126 {
1127 struct mwifiex_adapter *adapter = priv->adapter;
1128
1129 if (adapter->is_hw_11ac_capable) {
1130 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1131 if (tx_htinfo & BIT(0)) {
1132 /* HT */
1133 rate->mcs = priv->tx_rate;
1134 rate->flags |= RATE_INFO_FLAGS_MCS;
1135 }
1136 if (tx_htinfo & BIT(1)) {
1137 /* VHT */
1138 rate->mcs = priv->tx_rate & 0x0F;
1139 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1140 }
1141
1142 if (tx_htinfo & (BIT(1) | BIT(0))) {
1143 /* HT or VHT */
1144 switch (tx_htinfo & (BIT(3) | BIT(2))) {
1145 case 0:
1146 rate->bw = RATE_INFO_BW_20;
1147 break;
1148 case (BIT(2)):
1149 rate->bw = RATE_INFO_BW_40;
1150 break;
1151 case (BIT(3)):
1152 rate->bw = RATE_INFO_BW_80;
1153 break;
1154 case (BIT(3) | BIT(2)):
1155 rate->bw = RATE_INFO_BW_160;
1156 break;
1157 }
1158
1159 if (tx_htinfo & BIT(4))
1160 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1161
1162 if ((priv->tx_rate >> 4) == 1)
1163 rate->nss = 2;
1164 else
1165 rate->nss = 1;
1166 }
1167 } else {
1168 /*
1169 * Bit 0 in tx_htinfo indicates that current Tx rate
1170 * is 11n rate. Valid MCS index values for us are 0 to 15.
1171 */
1172 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1173 rate->mcs = priv->tx_rate;
1174 rate->flags |= RATE_INFO_FLAGS_MCS;
1175 rate->bw = RATE_INFO_BW_20;
1176 if (tx_htinfo & BIT(1))
1177 rate->bw = RATE_INFO_BW_40;
1178 if (tx_htinfo & BIT(2))
1179 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1180 }
1181 }
1182 }
1183
1184 /*
1185 * This function dumps the station information on a buffer.
1186 *
1187 * The following information are shown -
1188 * - Total bytes transmitted
1189 * - Total bytes received
1190 * - Total packets transmitted
1191 * - Total packets received
1192 * - Signal quality level
1193 * - Transmission rate
1194 */
1195 static int
mwifiex_dump_station_info(struct mwifiex_private * priv,struct station_info * sinfo)1196 mwifiex_dump_station_info(struct mwifiex_private *priv,
1197 struct station_info *sinfo)
1198 {
1199 u32 rate;
1200
1201 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1202 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1203 BIT(NL80211_STA_INFO_TX_BITRATE) |
1204 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1205
1206 /* Get signal information from the firmware */
1207 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1208 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1209 dev_err(priv->adapter->dev, "failed to get signal information\n");
1210 return -EFAULT;
1211 }
1212
1213 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1214 dev_err(priv->adapter->dev, "getting data rate\n");
1215 return -EFAULT;
1216 }
1217
1218 /* Get DTIM period information from firmware */
1219 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1220 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1221 &priv->dtim_period, true);
1222
1223 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1224
1225 sinfo->signal_avg = priv->bcn_rssi_avg;
1226 sinfo->rx_bytes = priv->stats.rx_bytes;
1227 sinfo->tx_bytes = priv->stats.tx_bytes;
1228 sinfo->rx_packets = priv->stats.rx_packets;
1229 sinfo->tx_packets = priv->stats.tx_packets;
1230 sinfo->signal = priv->bcn_rssi_avg;
1231 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1232 sinfo->txrate.legacy = rate * 5;
1233
1234 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1235 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1236 sinfo->bss_param.flags = 0;
1237 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1238 WLAN_CAPABILITY_SHORT_PREAMBLE)
1239 sinfo->bss_param.flags |=
1240 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1241 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1242 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1243 sinfo->bss_param.flags |=
1244 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1245 sinfo->bss_param.dtim_period = priv->dtim_period;
1246 sinfo->bss_param.beacon_interval =
1247 priv->curr_bss_params.bss_descriptor.beacon_period;
1248 }
1249
1250 return 0;
1251 }
1252
1253 /*
1254 * CFG802.11 operation handler to get station information.
1255 *
1256 * This function only works in connected mode, and dumps the
1257 * requested station information, if available.
1258 */
1259 static int
mwifiex_cfg80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)1260 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1261 const u8 *mac, struct station_info *sinfo)
1262 {
1263 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1264
1265 if (!priv->media_connected)
1266 return -ENOENT;
1267 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1268 return -ENOENT;
1269
1270 return mwifiex_dump_station_info(priv, sinfo);
1271 }
1272
1273 /*
1274 * CFG802.11 operation handler to dump station information.
1275 */
1276 static int
mwifiex_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)1277 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1278 int idx, u8 *mac, struct station_info *sinfo)
1279 {
1280 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1281
1282 if (!priv->media_connected || idx)
1283 return -ENOENT;
1284
1285 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1286
1287 return mwifiex_dump_station_info(priv, sinfo);
1288 }
1289
1290 static int
mwifiex_cfg80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)1291 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1292 int idx, struct survey_info *survey)
1293 {
1294 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1295 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1296 enum ieee80211_band band;
1297
1298 dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1299
1300 memset(survey, 0, sizeof(struct survey_info));
1301
1302 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1303 priv->media_connected && idx == 0) {
1304 u8 curr_bss_band = priv->curr_bss_params.band;
1305 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1306
1307 band = mwifiex_band_to_radio_type(curr_bss_band);
1308 survey->channel = ieee80211_get_channel(wiphy,
1309 ieee80211_channel_to_frequency(chan, band));
1310
1311 if (priv->bcn_nf_last) {
1312 survey->filled = SURVEY_INFO_NOISE_DBM;
1313 survey->noise = priv->bcn_nf_last;
1314 }
1315 return 0;
1316 }
1317
1318 if (idx >= priv->adapter->num_in_chan_stats)
1319 return -ENOENT;
1320
1321 if (!pchan_stats[idx].cca_scan_dur)
1322 return 0;
1323
1324 band = pchan_stats[idx].bandcfg;
1325 survey->channel = ieee80211_get_channel(wiphy,
1326 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1327 survey->filled = SURVEY_INFO_NOISE_DBM |
1328 SURVEY_INFO_TIME |
1329 SURVEY_INFO_TIME_BUSY;
1330 survey->noise = pchan_stats[idx].noise;
1331 survey->time = pchan_stats[idx].cca_scan_dur;
1332 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1333
1334 return 0;
1335 }
1336
1337 /* Supported rates to be advertised to the cfg80211 */
1338 static struct ieee80211_rate mwifiex_rates[] = {
1339 {.bitrate = 10, .hw_value = 2, },
1340 {.bitrate = 20, .hw_value = 4, },
1341 {.bitrate = 55, .hw_value = 11, },
1342 {.bitrate = 110, .hw_value = 22, },
1343 {.bitrate = 60, .hw_value = 12, },
1344 {.bitrate = 90, .hw_value = 18, },
1345 {.bitrate = 120, .hw_value = 24, },
1346 {.bitrate = 180, .hw_value = 36, },
1347 {.bitrate = 240, .hw_value = 48, },
1348 {.bitrate = 360, .hw_value = 72, },
1349 {.bitrate = 480, .hw_value = 96, },
1350 {.bitrate = 540, .hw_value = 108, },
1351 };
1352
1353 /* Channel definitions to be advertised to cfg80211 */
1354 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1355 {.center_freq = 2412, .hw_value = 1, },
1356 {.center_freq = 2417, .hw_value = 2, },
1357 {.center_freq = 2422, .hw_value = 3, },
1358 {.center_freq = 2427, .hw_value = 4, },
1359 {.center_freq = 2432, .hw_value = 5, },
1360 {.center_freq = 2437, .hw_value = 6, },
1361 {.center_freq = 2442, .hw_value = 7, },
1362 {.center_freq = 2447, .hw_value = 8, },
1363 {.center_freq = 2452, .hw_value = 9, },
1364 {.center_freq = 2457, .hw_value = 10, },
1365 {.center_freq = 2462, .hw_value = 11, },
1366 {.center_freq = 2467, .hw_value = 12, },
1367 {.center_freq = 2472, .hw_value = 13, },
1368 {.center_freq = 2484, .hw_value = 14, },
1369 };
1370
1371 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1372 .channels = mwifiex_channels_2ghz,
1373 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1374 .bitrates = mwifiex_rates,
1375 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1376 };
1377
1378 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1379 {.center_freq = 5040, .hw_value = 8, },
1380 {.center_freq = 5060, .hw_value = 12, },
1381 {.center_freq = 5080, .hw_value = 16, },
1382 {.center_freq = 5170, .hw_value = 34, },
1383 {.center_freq = 5190, .hw_value = 38, },
1384 {.center_freq = 5210, .hw_value = 42, },
1385 {.center_freq = 5230, .hw_value = 46, },
1386 {.center_freq = 5180, .hw_value = 36, },
1387 {.center_freq = 5200, .hw_value = 40, },
1388 {.center_freq = 5220, .hw_value = 44, },
1389 {.center_freq = 5240, .hw_value = 48, },
1390 {.center_freq = 5260, .hw_value = 52, },
1391 {.center_freq = 5280, .hw_value = 56, },
1392 {.center_freq = 5300, .hw_value = 60, },
1393 {.center_freq = 5320, .hw_value = 64, },
1394 {.center_freq = 5500, .hw_value = 100, },
1395 {.center_freq = 5520, .hw_value = 104, },
1396 {.center_freq = 5540, .hw_value = 108, },
1397 {.center_freq = 5560, .hw_value = 112, },
1398 {.center_freq = 5580, .hw_value = 116, },
1399 {.center_freq = 5600, .hw_value = 120, },
1400 {.center_freq = 5620, .hw_value = 124, },
1401 {.center_freq = 5640, .hw_value = 128, },
1402 {.center_freq = 5660, .hw_value = 132, },
1403 {.center_freq = 5680, .hw_value = 136, },
1404 {.center_freq = 5700, .hw_value = 140, },
1405 {.center_freq = 5745, .hw_value = 149, },
1406 {.center_freq = 5765, .hw_value = 153, },
1407 {.center_freq = 5785, .hw_value = 157, },
1408 {.center_freq = 5805, .hw_value = 161, },
1409 {.center_freq = 5825, .hw_value = 165, },
1410 };
1411
1412 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1413 .channels = mwifiex_channels_5ghz,
1414 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1415 .bitrates = mwifiex_rates + 4,
1416 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1417 };
1418
1419
1420 /* Supported crypto cipher suits to be advertised to cfg80211 */
1421 static const u32 mwifiex_cipher_suites[] = {
1422 WLAN_CIPHER_SUITE_WEP40,
1423 WLAN_CIPHER_SUITE_WEP104,
1424 WLAN_CIPHER_SUITE_TKIP,
1425 WLAN_CIPHER_SUITE_CCMP,
1426 WLAN_CIPHER_SUITE_AES_CMAC,
1427 };
1428
1429 /* Supported mgmt frame types to be advertised to cfg80211 */
1430 static const struct ieee80211_txrx_stypes
1431 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1432 [NL80211_IFTYPE_STATION] = {
1433 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1434 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1435 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1436 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1437 },
1438 [NL80211_IFTYPE_AP] = {
1439 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1440 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1441 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1442 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1443 },
1444 [NL80211_IFTYPE_P2P_CLIENT] = {
1445 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1446 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1447 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1448 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1449 },
1450 [NL80211_IFTYPE_P2P_GO] = {
1451 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1452 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1453 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1454 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1455 },
1456 };
1457
1458 /*
1459 * CFG802.11 operation handler for setting bit rates.
1460 *
1461 * Function configures data rates to firmware using bitrate mask
1462 * provided by cfg80211.
1463 */
mwifiex_cfg80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,const struct cfg80211_bitrate_mask * mask)1464 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1465 struct net_device *dev,
1466 const u8 *peer,
1467 const struct cfg80211_bitrate_mask *mask)
1468 {
1469 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1470 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1471 enum ieee80211_band band;
1472 struct mwifiex_adapter *adapter = priv->adapter;
1473
1474 if (!priv->media_connected) {
1475 dev_err(adapter->dev,
1476 "Can not set Tx data rate in disconnected state\n");
1477 return -EINVAL;
1478 }
1479
1480 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1481
1482 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1483
1484 /* Fill HR/DSSS rates. */
1485 if (band == IEEE80211_BAND_2GHZ)
1486 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1487
1488 /* Fill OFDM rates */
1489 if (band == IEEE80211_BAND_2GHZ)
1490 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1491 else
1492 bitmap_rates[1] = mask->control[band].legacy;
1493
1494 /* Fill HT MCS rates */
1495 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1496 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1497 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1498
1499 /* Fill VHT MCS rates */
1500 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1501 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1502 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1503 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1504 }
1505
1506 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1507 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1508 }
1509
1510 /*
1511 * CFG802.11 operation handler for connection quality monitoring.
1512 *
1513 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1514 * events to FW.
1515 */
mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)1516 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1517 struct net_device *dev,
1518 s32 rssi_thold, u32 rssi_hyst)
1519 {
1520 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1521 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1522
1523 priv->cqm_rssi_thold = rssi_thold;
1524 priv->cqm_rssi_hyst = rssi_hyst;
1525
1526 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1527 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1528
1529 /* Subscribe/unsubscribe low and high rssi events */
1530 if (rssi_thold && rssi_hyst) {
1531 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1532 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1533 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1534 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1535 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1536 return mwifiex_send_cmd(priv,
1537 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1538 0, 0, &subsc_evt, true);
1539 } else {
1540 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1541 return mwifiex_send_cmd(priv,
1542 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1543 0, 0, &subsc_evt, true);
1544 }
1545
1546 return 0;
1547 }
1548
1549 /* cfg80211 operation handler for change_beacon.
1550 * Function retrieves and sets modified management IEs to FW.
1551 */
mwifiex_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * data)1552 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1553 struct net_device *dev,
1554 struct cfg80211_beacon_data *data)
1555 {
1556 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1557
1558 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1559 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1560 return -EINVAL;
1561 }
1562
1563 if (!priv->bss_started) {
1564 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1565 return -EINVAL;
1566 }
1567
1568 if (mwifiex_set_mgmt_ies(priv, data)) {
1569 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1570 return -EFAULT;
1571 }
1572
1573 return 0;
1574 }
1575
1576 /* cfg80211 operation handler for del_station.
1577 * Function deauthenticates station which value is provided in mac parameter.
1578 * If mac is NULL/broadcast, all stations in associated station list are
1579 * deauthenticated. If bss is not started or there are no stations in
1580 * associated stations list, no action is taken.
1581 */
1582 static int
mwifiex_cfg80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1583 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1584 struct station_del_parameters *params)
1585 {
1586 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1587 struct mwifiex_sta_node *sta_node;
1588 u8 deauth_mac[ETH_ALEN];
1589 unsigned long flags;
1590
1591 if (list_empty(&priv->sta_list) || !priv->bss_started)
1592 return 0;
1593
1594 if (!params->mac || is_broadcast_ether_addr(params->mac))
1595 return 0;
1596
1597 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1598
1599 eth_zero_addr(deauth_mac);
1600
1601 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1602 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1603 if (sta_node)
1604 ether_addr_copy(deauth_mac, params->mac);
1605 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1606
1607 if (is_valid_ether_addr(deauth_mac)) {
1608 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1609 HostCmd_ACT_GEN_SET, 0,
1610 deauth_mac, true))
1611 return -1;
1612 }
1613
1614 return 0;
1615 }
1616
1617 static int
mwifiex_cfg80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)1618 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1619 {
1620 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1621 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1622 MWIFIEX_BSS_ROLE_ANY);
1623 struct mwifiex_ds_ant_cfg ant_cfg;
1624
1625 if (!tx_ant || !rx_ant)
1626 return -EOPNOTSUPP;
1627
1628 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1629 /* Not a MIMO chip. User should provide specific antenna number
1630 * for Tx/Rx path or enable all antennas for diversity
1631 */
1632 if (tx_ant != rx_ant)
1633 return -EOPNOTSUPP;
1634
1635 if ((tx_ant & (tx_ant - 1)) &&
1636 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1637 return -EOPNOTSUPP;
1638
1639 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1640 (priv->adapter->number_of_antenna > 1)) {
1641 tx_ant = RF_ANTENNA_AUTO;
1642 rx_ant = RF_ANTENNA_AUTO;
1643 }
1644 } else {
1645 struct ieee80211_sta_ht_cap *ht_info;
1646 int rx_mcs_supp;
1647 enum ieee80211_band band;
1648
1649 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1650 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1651 if (adapter->is_hw_11ac_capable)
1652 adapter->usr_dot_11ac_mcs_support =
1653 MWIFIEX_11AC_MCS_MAP_1X1;
1654 } else {
1655 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1656 if (adapter->is_hw_11ac_capable)
1657 adapter->usr_dot_11ac_mcs_support =
1658 MWIFIEX_11AC_MCS_MAP_2X2;
1659 }
1660
1661 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1662 if (!adapter->wiphy->bands[band])
1663 continue;
1664
1665 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1666 rx_mcs_supp =
1667 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1668 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1669 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1670 }
1671 }
1672
1673 ant_cfg.tx_ant = tx_ant;
1674 ant_cfg.rx_ant = rx_ant;
1675
1676 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1677 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1678 }
1679
1680 /* cfg80211 operation handler for stop ap.
1681 * Function stops BSS running at uAP interface.
1682 */
mwifiex_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1683 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1684 {
1685 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1686
1687 mwifiex_abort_cac(priv);
1688
1689 if (mwifiex_del_mgmt_ies(priv))
1690 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1691
1692 priv->ap_11n_enabled = 0;
1693 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1694
1695 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1696 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1697 wiphy_err(wiphy, "Failed to stop the BSS\n");
1698 return -1;
1699 }
1700
1701 return 0;
1702 }
1703
1704 /* cfg80211 operation handler for start_ap.
1705 * Function sets beacon period, DTIM period, SSID and security into
1706 * AP config structure.
1707 * AP is configured with these settings and BSS is started.
1708 */
mwifiex_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1709 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1710 struct net_device *dev,
1711 struct cfg80211_ap_settings *params)
1712 {
1713 struct mwifiex_uap_bss_param *bss_cfg;
1714 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1715
1716 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1717 return -1;
1718
1719 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1720 if (!bss_cfg)
1721 return -ENOMEM;
1722
1723 mwifiex_set_sys_config_invalid_data(bss_cfg);
1724
1725 if (params->beacon_interval)
1726 bss_cfg->beacon_period = params->beacon_interval;
1727 if (params->dtim_period)
1728 bss_cfg->dtim_period = params->dtim_period;
1729
1730 if (params->ssid && params->ssid_len) {
1731 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1732 bss_cfg->ssid.ssid_len = params->ssid_len;
1733 }
1734 if (params->inactivity_timeout > 0) {
1735 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1736 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1737 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1738 }
1739
1740 switch (params->hidden_ssid) {
1741 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1742 bss_cfg->bcast_ssid_ctl = 1;
1743 break;
1744 case NL80211_HIDDEN_SSID_ZERO_LEN:
1745 bss_cfg->bcast_ssid_ctl = 0;
1746 break;
1747 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1748 /* firmware doesn't support this type of hidden SSID */
1749 default:
1750 kfree(bss_cfg);
1751 return -EINVAL;
1752 }
1753
1754 mwifiex_uap_set_channel(bss_cfg, params->chandef);
1755 mwifiex_set_uap_rates(bss_cfg, params);
1756
1757 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1758 kfree(bss_cfg);
1759 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1760 return -1;
1761 }
1762
1763 mwifiex_set_ht_params(priv, bss_cfg, params);
1764
1765 if (priv->adapter->is_hw_11ac_capable) {
1766 mwifiex_set_vht_params(priv, bss_cfg, params);
1767 mwifiex_set_vht_width(priv, params->chandef.width,
1768 priv->ap_11ac_enabled);
1769 }
1770
1771 if (priv->ap_11ac_enabled)
1772 mwifiex_set_11ac_ba_params(priv);
1773 else
1774 mwifiex_set_ba_params(priv);
1775
1776 mwifiex_set_wmm_params(priv, bss_cfg, params);
1777
1778 if (mwifiex_is_11h_active(priv) &&
1779 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef,
1780 priv->bss_mode)) {
1781 dev_dbg(priv->adapter->dev, "Disable 11h extensions in FW\n");
1782 if (mwifiex_11h_activate(priv, false)) {
1783 dev_err(priv->adapter->dev,
1784 "Failed to disable 11h extensions!!");
1785 return -1;
1786 }
1787 priv->state_11h.is_11h_active = true;
1788 }
1789
1790 if (mwifiex_config_start_uap(priv, bss_cfg)) {
1791 wiphy_err(wiphy, "Failed to start AP\n");
1792 kfree(bss_cfg);
1793 return -1;
1794 }
1795
1796 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon))
1797 return -1;
1798
1799 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1800 kfree(bss_cfg);
1801 return 0;
1802 }
1803
1804 /*
1805 * CFG802.11 operation handler for disconnection request.
1806 *
1807 * This function does not work when there is already a disconnection
1808 * procedure going on.
1809 */
1810 static int
mwifiex_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)1811 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1812 u16 reason_code)
1813 {
1814 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1815
1816 if (mwifiex_deauthenticate(priv, NULL))
1817 return -EFAULT;
1818
1819 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1820 " reason code %d\n", priv->cfg_bssid, reason_code);
1821
1822 eth_zero_addr(priv->cfg_bssid);
1823 priv->hs2_enabled = false;
1824
1825 return 0;
1826 }
1827
1828 /*
1829 * This function informs the CFG802.11 subsystem of a new IBSS.
1830 *
1831 * The following information are sent to the CFG802.11 subsystem
1832 * to register the new IBSS. If we do not register the new IBSS,
1833 * a kernel panic will result.
1834 * - SSID
1835 * - SSID length
1836 * - BSSID
1837 * - Channel
1838 */
mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private * priv)1839 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1840 {
1841 struct ieee80211_channel *chan;
1842 struct mwifiex_bss_info bss_info;
1843 struct cfg80211_bss *bss;
1844 int ie_len;
1845 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1846 enum ieee80211_band band;
1847
1848 if (mwifiex_get_bss_info(priv, &bss_info))
1849 return -1;
1850
1851 ie_buf[0] = WLAN_EID_SSID;
1852 ie_buf[1] = bss_info.ssid.ssid_len;
1853
1854 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1855 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1856 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1857
1858 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1859 chan = __ieee80211_get_channel(priv->wdev.wiphy,
1860 ieee80211_channel_to_frequency(bss_info.bss_chan,
1861 band));
1862
1863 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
1864 CFG80211_BSS_FTYPE_UNKNOWN,
1865 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1866 0, ie_buf, ie_len, 0, GFP_KERNEL);
1867 cfg80211_put_bss(priv->wdev.wiphy, bss);
1868 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1869
1870 return 0;
1871 }
1872
1873 /*
1874 * This function connects with a BSS.
1875 *
1876 * This function handles both Infra and Ad-Hoc modes. It also performs
1877 * validity checking on the provided parameters, disconnects from the
1878 * current BSS (if any), sets up the association/scan parameters,
1879 * including security settings, and performs specific SSID scan before
1880 * trying to connect.
1881 *
1882 * For Infra mode, the function returns failure if the specified SSID
1883 * is not found in scan table. However, for Ad-Hoc mode, it can create
1884 * the IBSS if it does not exist. On successful completion in either case,
1885 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1886 */
1887 static int
mwifiex_cfg80211_assoc(struct mwifiex_private * priv,size_t ssid_len,const u8 * ssid,const u8 * bssid,int mode,struct ieee80211_channel * channel,struct cfg80211_connect_params * sme,bool privacy)1888 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1889 const u8 *ssid, const u8 *bssid, int mode,
1890 struct ieee80211_channel *channel,
1891 struct cfg80211_connect_params *sme, bool privacy)
1892 {
1893 struct cfg80211_ssid req_ssid;
1894 int ret, auth_type = 0;
1895 struct cfg80211_bss *bss = NULL;
1896 u8 is_scanning_required = 0;
1897
1898 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1899
1900 req_ssid.ssid_len = ssid_len;
1901 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1902 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1903 return -EINVAL;
1904 }
1905
1906 memcpy(req_ssid.ssid, ssid, ssid_len);
1907 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1908 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1909 return -EINVAL;
1910 }
1911
1912 /* As this is new association, clear locally stored
1913 * keys and security related flags */
1914 priv->sec_info.wpa_enabled = false;
1915 priv->sec_info.wpa2_enabled = false;
1916 priv->wep_key_curr_index = 0;
1917 priv->sec_info.encryption_mode = 0;
1918 priv->sec_info.is_authtype_auto = 0;
1919 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1920
1921 if (mode == NL80211_IFTYPE_ADHOC) {
1922 /* "privacy" is set only for ad-hoc mode */
1923 if (privacy) {
1924 /*
1925 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1926 * the firmware can find a matching network from the
1927 * scan. The cfg80211 does not give us the encryption
1928 * mode at this stage so just setting it to WEP here.
1929 */
1930 priv->sec_info.encryption_mode =
1931 WLAN_CIPHER_SUITE_WEP104;
1932 priv->sec_info.authentication_mode =
1933 NL80211_AUTHTYPE_OPEN_SYSTEM;
1934 }
1935
1936 goto done;
1937 }
1938
1939 /* Now handle infra mode. "sme" is valid for infra mode only */
1940 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1941 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1942 priv->sec_info.is_authtype_auto = 1;
1943 } else {
1944 auth_type = sme->auth_type;
1945 }
1946
1947 if (sme->crypto.n_ciphers_pairwise) {
1948 priv->sec_info.encryption_mode =
1949 sme->crypto.ciphers_pairwise[0];
1950 priv->sec_info.authentication_mode = auth_type;
1951 }
1952
1953 if (sme->crypto.cipher_group) {
1954 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1955 priv->sec_info.authentication_mode = auth_type;
1956 }
1957 if (sme->ie)
1958 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1959
1960 if (sme->key) {
1961 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1962 dev_dbg(priv->adapter->dev,
1963 "info: setting wep encryption"
1964 " with key len %d\n", sme->key_len);
1965 priv->wep_key_curr_index = sme->key_idx;
1966 ret = mwifiex_set_encode(priv, NULL, sme->key,
1967 sme->key_len, sme->key_idx,
1968 NULL, 0);
1969 }
1970 }
1971 done:
1972 /*
1973 * Scan entries are valid for some time (15 sec). So we can save one
1974 * active scan time if we just try cfg80211_get_bss first. If it fails
1975 * then request scan and cfg80211_get_bss() again for final output.
1976 */
1977 while (1) {
1978 if (is_scanning_required) {
1979 /* Do specific SSID scanning */
1980 if (mwifiex_request_scan(priv, &req_ssid)) {
1981 dev_err(priv->adapter->dev, "scan error\n");
1982 return -EFAULT;
1983 }
1984 }
1985
1986 /* Find the BSS we want using available scan results */
1987 if (mode == NL80211_IFTYPE_ADHOC)
1988 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1989 bssid, ssid, ssid_len,
1990 IEEE80211_BSS_TYPE_IBSS,
1991 IEEE80211_PRIVACY_ANY);
1992 else
1993 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
1994 bssid, ssid, ssid_len,
1995 IEEE80211_BSS_TYPE_ESS,
1996 IEEE80211_PRIVACY_ANY);
1997
1998 if (!bss) {
1999 if (is_scanning_required) {
2000 dev_warn(priv->adapter->dev,
2001 "assoc: requested bss not found in scan results\n");
2002 break;
2003 }
2004 is_scanning_required = 1;
2005 } else {
2006 dev_dbg(priv->adapter->dev,
2007 "info: trying to associate to '%s' bssid %pM\n",
2008 (char *) req_ssid.ssid, bss->bssid);
2009 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2010 break;
2011 }
2012 }
2013
2014 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2015 if (ret)
2016 return ret;
2017
2018 if (mode == NL80211_IFTYPE_ADHOC) {
2019 /* Inform the BSS information to kernel, otherwise
2020 * kernel will give a panic after successful assoc */
2021 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2022 return -EFAULT;
2023 }
2024
2025 return ret;
2026 }
2027
2028 /*
2029 * CFG802.11 operation handler for association request.
2030 *
2031 * This function does not work when the current mode is set to Ad-Hoc, or
2032 * when there is already an association procedure going on. The given BSS
2033 * information is used to associate.
2034 */
2035 static int
mwifiex_cfg80211_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)2036 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2037 struct cfg80211_connect_params *sme)
2038 {
2039 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2040 struct mwifiex_adapter *adapter = priv->adapter;
2041 int ret;
2042
2043 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2044 wiphy_err(wiphy,
2045 "%s: reject infra assoc request in non-STA role\n",
2046 dev->name);
2047 return -EINVAL;
2048 }
2049
2050 if (priv->wdev.current_bss) {
2051 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
2052 return -EALREADY;
2053 }
2054
2055 if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2056 wiphy_err(wiphy,
2057 "%s: Ignore connection. Card removed or FW in bad state\n",
2058 dev->name);
2059 return -EFAULT;
2060 }
2061
2062 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
2063 (char *) sme->ssid, sme->bssid);
2064
2065 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2066 priv->bss_mode, sme->channel, sme, 0);
2067 if (!ret) {
2068 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2069 NULL, 0, WLAN_STATUS_SUCCESS,
2070 GFP_KERNEL);
2071 dev_dbg(priv->adapter->dev,
2072 "info: associated to bssid %pM successfully\n",
2073 priv->cfg_bssid);
2074 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2075 priv->adapter->auto_tdls &&
2076 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2077 mwifiex_setup_auto_tdls_timer(priv);
2078 } else {
2079 dev_dbg(priv->adapter->dev,
2080 "info: association to bssid %pM failed\n",
2081 priv->cfg_bssid);
2082 eth_zero_addr(priv->cfg_bssid);
2083
2084 if (ret > 0)
2085 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2086 NULL, 0, NULL, 0, ret,
2087 GFP_KERNEL);
2088 else
2089 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2090 NULL, 0, NULL, 0,
2091 WLAN_STATUS_UNSPECIFIED_FAILURE,
2092 GFP_KERNEL);
2093 }
2094
2095 return 0;
2096 }
2097
2098 /*
2099 * This function sets following parameters for ibss network.
2100 * - channel
2101 * - start band
2102 * - 11n flag
2103 * - secondary channel offset
2104 */
mwifiex_set_ibss_params(struct mwifiex_private * priv,struct cfg80211_ibss_params * params)2105 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2106 struct cfg80211_ibss_params *params)
2107 {
2108 struct wiphy *wiphy = priv->wdev.wiphy;
2109 struct mwifiex_adapter *adapter = priv->adapter;
2110 int index = 0, i;
2111 u8 config_bands = 0;
2112
2113 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2114 if (!params->basic_rates) {
2115 config_bands = BAND_B | BAND_G;
2116 } else {
2117 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2118 /*
2119 * Rates below 6 Mbps in the table are CCK
2120 * rates; 802.11b and from 6 they are OFDM;
2121 * 802.11G
2122 */
2123 if (mwifiex_rates[i].bitrate == 60) {
2124 index = 1 << i;
2125 break;
2126 }
2127 }
2128
2129 if (params->basic_rates < index) {
2130 config_bands = BAND_B;
2131 } else {
2132 config_bands = BAND_G;
2133 if (params->basic_rates % index)
2134 config_bands |= BAND_B;
2135 }
2136 }
2137
2138 if (cfg80211_get_chandef_type(¶ms->chandef) !=
2139 NL80211_CHAN_NO_HT)
2140 config_bands |= BAND_G | BAND_GN;
2141 } else {
2142 if (cfg80211_get_chandef_type(¶ms->chandef) ==
2143 NL80211_CHAN_NO_HT)
2144 config_bands = BAND_A;
2145 else
2146 config_bands = BAND_AN | BAND_A;
2147 }
2148
2149 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2150 adapter->config_bands = config_bands;
2151 adapter->adhoc_start_band = config_bands;
2152
2153 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2154 adapter->adhoc_11n_enabled = true;
2155 else
2156 adapter->adhoc_11n_enabled = false;
2157 }
2158
2159 adapter->sec_chan_offset =
2160 mwifiex_chan_type_to_sec_chan_offset(
2161 cfg80211_get_chandef_type(¶ms->chandef));
2162 priv->adhoc_channel = ieee80211_frequency_to_channel(
2163 params->chandef.chan->center_freq);
2164
2165 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
2166 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
2167
2168 return 0;
2169 }
2170
2171 /*
2172 * CFG802.11 operation handler to join an IBSS.
2173 *
2174 * This function does not work in any mode other than Ad-Hoc, or if
2175 * a join operation is already in progress.
2176 */
2177 static int
mwifiex_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2178 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2179 struct cfg80211_ibss_params *params)
2180 {
2181 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2182 int ret = 0;
2183
2184 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2185 wiphy_err(wiphy, "request to join ibss received "
2186 "when station is not in ibss mode\n");
2187 goto done;
2188 }
2189
2190 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
2191 (char *) params->ssid, params->bssid);
2192
2193 mwifiex_set_ibss_params(priv, params);
2194
2195 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2196 params->bssid, priv->bss_mode,
2197 params->chandef.chan, NULL,
2198 params->privacy);
2199 done:
2200 if (!ret) {
2201 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2202 params->chandef.chan, GFP_KERNEL);
2203 dev_dbg(priv->adapter->dev,
2204 "info: joined/created adhoc network with bssid"
2205 " %pM successfully\n", priv->cfg_bssid);
2206 } else {
2207 dev_dbg(priv->adapter->dev,
2208 "info: failed creating/joining adhoc network\n");
2209 }
2210
2211 return ret;
2212 }
2213
2214 /*
2215 * CFG802.11 operation handler to leave an IBSS.
2216 *
2217 * This function does not work if a leave operation is
2218 * already in progress.
2219 */
2220 static int
mwifiex_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2221 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2222 {
2223 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2224
2225 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
2226 priv->cfg_bssid);
2227 if (mwifiex_deauthenticate(priv, NULL))
2228 return -EFAULT;
2229
2230 eth_zero_addr(priv->cfg_bssid);
2231
2232 return 0;
2233 }
2234
2235 /*
2236 * CFG802.11 operation handler for scan request.
2237 *
2238 * This function issues a scan request to the firmware based upon
2239 * the user specified scan configuration. On successfull completion,
2240 * it also informs the results.
2241 */
2242 static int
mwifiex_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)2243 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2244 struct cfg80211_scan_request *request)
2245 {
2246 struct net_device *dev = request->wdev->netdev;
2247 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2248 int i, offset, ret;
2249 struct ieee80211_channel *chan;
2250 struct ieee_types_header *ie;
2251 struct mwifiex_user_scan_cfg *user_scan_cfg;
2252
2253 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
2254
2255 /* Block scan request if scan operation or scan cleanup when interface
2256 * is disabled is in process
2257 */
2258 if (priv->scan_request || priv->scan_aborting) {
2259 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2260 return -EBUSY;
2261 }
2262
2263 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2264 if (!user_scan_cfg)
2265 return -ENOMEM;
2266
2267 priv->scan_request = request;
2268
2269 user_scan_cfg->num_ssids = request->n_ssids;
2270 user_scan_cfg->ssid_list = request->ssids;
2271
2272 if (request->ie && request->ie_len) {
2273 offset = 0;
2274 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2275 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2276 continue;
2277 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2278 ie = (struct ieee_types_header *)(request->ie + offset);
2279 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2280 offset += sizeof(*ie) + ie->len;
2281
2282 if (offset >= request->ie_len)
2283 break;
2284 }
2285 }
2286
2287 for (i = 0; i < min_t(u32, request->n_channels,
2288 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2289 chan = request->channels[i];
2290 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2291 user_scan_cfg->chan_list[i].radio_type = chan->band;
2292
2293 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2294 user_scan_cfg->chan_list[i].scan_type =
2295 MWIFIEX_SCAN_TYPE_PASSIVE;
2296 else
2297 user_scan_cfg->chan_list[i].scan_type =
2298 MWIFIEX_SCAN_TYPE_ACTIVE;
2299
2300 user_scan_cfg->chan_list[i].scan_time = 0;
2301 }
2302
2303 if (priv->adapter->scan_chan_gap_enabled &&
2304 mwifiex_is_any_intf_active(priv))
2305 user_scan_cfg->scan_chan_gap =
2306 priv->adapter->scan_chan_gap_time;
2307
2308 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2309 kfree(user_scan_cfg);
2310 if (ret) {
2311 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2312 priv->scan_aborting = false;
2313 priv->scan_request = NULL;
2314 return ret;
2315 }
2316
2317 if (request->ie && request->ie_len) {
2318 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2319 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2320 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2321 memset(&priv->vs_ie[i].ie, 0,
2322 MWIFIEX_MAX_VSIE_LEN);
2323 }
2324 }
2325 }
2326 return 0;
2327 }
2328
mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap * vht_info,struct mwifiex_private * priv)2329 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2330 struct mwifiex_private *priv)
2331 {
2332 struct mwifiex_adapter *adapter = priv->adapter;
2333
2334 vht_info->vht_supported = true;
2335
2336 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2337 /* Update MCS support for VHT */
2338 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2339 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2340 vht_info->vht_mcs.rx_highest = 0;
2341 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2342 adapter->hw_dot_11ac_mcs_support >> 16);
2343 vht_info->vht_mcs.tx_highest = 0;
2344 }
2345
2346 /*
2347 * This function sets up the CFG802.11 specific HT capability fields
2348 * with default values.
2349 *
2350 * The following default values are set -
2351 * - HT Supported = True
2352 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2353 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2354 * - HT Capabilities supported by firmware
2355 * - MCS information, Rx mask = 0xff
2356 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2357 */
2358 static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap * ht_info,struct mwifiex_private * priv)2359 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2360 struct mwifiex_private *priv)
2361 {
2362 int rx_mcs_supp;
2363 struct ieee80211_mcs_info mcs_set;
2364 u8 *mcs = (u8 *)&mcs_set;
2365 struct mwifiex_adapter *adapter = priv->adapter;
2366
2367 ht_info->ht_supported = true;
2368 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2369 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2370
2371 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2372
2373 /* Fill HT capability information */
2374 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2375 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2376 else
2377 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2378
2379 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2380 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2381 else
2382 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2383
2384 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2385 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2386 else
2387 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2388
2389 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2390 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2391 else
2392 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2393
2394 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2395 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2396 else
2397 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2398
2399 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2400 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2401 else
2402 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2403
2404 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2405 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2406 else
2407 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2408
2409 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2410 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2411 else
2412 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2413
2414 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2415 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2416
2417 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2418 /* Set MCS for 1x1/2x2 */
2419 memset(mcs, 0xff, rx_mcs_supp);
2420 /* Clear all the other values */
2421 memset(&mcs[rx_mcs_supp], 0,
2422 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2423 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2424 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2425 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2426 SETHT_MCS32(mcs_set.rx_mask);
2427
2428 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2429
2430 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2431 }
2432
2433 /*
2434 * create a new virtual interface with the given name and name assign type
2435 */
mwifiex_add_virtual_intf(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,u32 * flags,struct vif_params * params)2436 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2437 const char *name,
2438 unsigned char name_assign_type,
2439 enum nl80211_iftype type,
2440 u32 *flags,
2441 struct vif_params *params)
2442 {
2443 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2444 struct mwifiex_private *priv;
2445 struct net_device *dev;
2446 void *mdev_priv;
2447
2448 if (!adapter)
2449 return ERR_PTR(-EFAULT);
2450
2451 switch (type) {
2452 case NL80211_IFTYPE_UNSPECIFIED:
2453 case NL80211_IFTYPE_STATION:
2454 case NL80211_IFTYPE_ADHOC:
2455 if (adapter->curr_iface_comb.sta_intf ==
2456 adapter->iface_limit.sta_intf) {
2457 wiphy_err(wiphy,
2458 "cannot create multiple sta/adhoc ifaces\n");
2459 return ERR_PTR(-EINVAL);
2460 }
2461
2462 priv = mwifiex_get_unused_priv(adapter);
2463 if (!priv) {
2464 wiphy_err(wiphy,
2465 "could not get free private struct\n");
2466 return ERR_PTR(-EFAULT);
2467 }
2468
2469 priv->wdev.wiphy = wiphy;
2470 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2471
2472 if (type == NL80211_IFTYPE_UNSPECIFIED)
2473 priv->bss_mode = NL80211_IFTYPE_STATION;
2474 else
2475 priv->bss_mode = type;
2476
2477 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2478 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2479 priv->bss_priority = 0;
2480 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2481 priv->bss_num = 0;
2482
2483 break;
2484 case NL80211_IFTYPE_AP:
2485 if (adapter->curr_iface_comb.uap_intf ==
2486 adapter->iface_limit.uap_intf) {
2487 wiphy_err(wiphy,
2488 "cannot create multiple AP ifaces\n");
2489 return ERR_PTR(-EINVAL);
2490 }
2491
2492 priv = mwifiex_get_unused_priv(adapter);
2493 if (!priv) {
2494 wiphy_err(wiphy,
2495 "could not get free private struct\n");
2496 return ERR_PTR(-EFAULT);
2497 }
2498
2499 priv->wdev.wiphy = wiphy;
2500 priv->wdev.iftype = NL80211_IFTYPE_AP;
2501
2502 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2503 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2504 priv->bss_priority = 0;
2505 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2506 priv->bss_started = 0;
2507 priv->bss_num = 0;
2508 priv->bss_mode = type;
2509
2510 break;
2511 case NL80211_IFTYPE_P2P_CLIENT:
2512 if (adapter->curr_iface_comb.p2p_intf ==
2513 adapter->iface_limit.p2p_intf) {
2514 wiphy_err(wiphy,
2515 "cannot create multiple P2P ifaces\n");
2516 return ERR_PTR(-EINVAL);
2517 }
2518
2519 priv = mwifiex_get_unused_priv(adapter);
2520 if (!priv) {
2521 wiphy_err(wiphy,
2522 "could not get free private struct\n");
2523 return ERR_PTR(-EFAULT);
2524 }
2525
2526 priv->wdev.wiphy = wiphy;
2527 /* At start-up, wpa_supplicant tries to change the interface
2528 * to NL80211_IFTYPE_STATION if it is not managed mode.
2529 */
2530 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2531 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2532
2533 /* Setting bss_type to P2P tells firmware that this interface
2534 * is receiving P2P peers found during find phase and doing
2535 * action frame handshake.
2536 */
2537 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2538
2539 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2540 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2541 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2542 priv->bss_started = 0;
2543 priv->bss_num = 0;
2544
2545 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2546 memset(&priv->wdev, 0, sizeof(priv->wdev));
2547 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2548 return ERR_PTR(-EFAULT);
2549 }
2550
2551 break;
2552 default:
2553 wiphy_err(wiphy, "type not supported\n");
2554 return ERR_PTR(-EINVAL);
2555 }
2556
2557 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2558 name_assign_type, ether_setup,
2559 IEEE80211_NUM_ACS, 1);
2560 if (!dev) {
2561 wiphy_err(wiphy, "no memory available for netdevice\n");
2562 memset(&priv->wdev, 0, sizeof(priv->wdev));
2563 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2564 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2565 return ERR_PTR(-ENOMEM);
2566 }
2567
2568 mwifiex_init_priv_params(priv, dev);
2569 priv->netdev = dev;
2570
2571 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2572 if (adapter->is_hw_11ac_capable)
2573 mwifiex_setup_vht_caps(
2574 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2575
2576 if (adapter->config_bands & BAND_A)
2577 mwifiex_setup_ht_caps(
2578 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2579
2580 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2581 mwifiex_setup_vht_caps(
2582 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2583
2584 dev_net_set(dev, wiphy_net(wiphy));
2585 dev->ieee80211_ptr = &priv->wdev;
2586 dev->ieee80211_ptr->iftype = priv->bss_mode;
2587 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2588 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2589
2590 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2591 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2592 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2593 dev->ethtool_ops = &mwifiex_ethtool_ops;
2594
2595 mdev_priv = netdev_priv(dev);
2596 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2597
2598 SET_NETDEV_DEV(dev, adapter->dev);
2599
2600 /* Register network device */
2601 if (register_netdevice(dev)) {
2602 wiphy_err(wiphy, "cannot register virtual network device\n");
2603 free_netdev(dev);
2604 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2605 priv->netdev = NULL;
2606 memset(&priv->wdev, 0, sizeof(priv->wdev));
2607 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2608 return ERR_PTR(-EFAULT);
2609 }
2610
2611 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2612 WQ_HIGHPRI |
2613 WQ_MEM_RECLAIM |
2614 WQ_UNBOUND, 1, name);
2615 if (!priv->dfs_cac_workqueue) {
2616 wiphy_err(wiphy, "cannot register virtual network device\n");
2617 free_netdev(dev);
2618 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2619 priv->netdev = NULL;
2620 memset(&priv->wdev, 0, sizeof(priv->wdev));
2621 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2622 return ERR_PTR(-ENOMEM);
2623 }
2624
2625 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2626
2627 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2628 WQ_HIGHPRI | WQ_UNBOUND |
2629 WQ_MEM_RECLAIM, 1, name);
2630 if (!priv->dfs_chan_sw_workqueue) {
2631 wiphy_err(wiphy, "cannot register virtual network device\n");
2632 free_netdev(dev);
2633 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2634 priv->netdev = NULL;
2635 memset(&priv->wdev, 0, sizeof(priv->wdev));
2636 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2637 return ERR_PTR(-ENOMEM);
2638 }
2639
2640 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2641 mwifiex_dfs_chan_sw_work_queue);
2642
2643 sema_init(&priv->async_sem, 1);
2644
2645 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2646
2647 #ifdef CONFIG_DEBUG_FS
2648 mwifiex_dev_debugfs_init(priv);
2649 #endif
2650
2651 switch (type) {
2652 case NL80211_IFTYPE_UNSPECIFIED:
2653 case NL80211_IFTYPE_STATION:
2654 case NL80211_IFTYPE_ADHOC:
2655 adapter->curr_iface_comb.sta_intf++;
2656 break;
2657 case NL80211_IFTYPE_AP:
2658 adapter->curr_iface_comb.uap_intf++;
2659 break;
2660 case NL80211_IFTYPE_P2P_CLIENT:
2661 adapter->curr_iface_comb.p2p_intf++;
2662 break;
2663 default:
2664 wiphy_err(wiphy, "type not supported\n");
2665 return ERR_PTR(-EINVAL);
2666 }
2667
2668 return &priv->wdev;
2669 }
2670 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2671
2672 /*
2673 * del_virtual_intf: remove the virtual interface determined by dev
2674 */
mwifiex_del_virtual_intf(struct wiphy * wiphy,struct wireless_dev * wdev)2675 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2676 {
2677 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2678 struct mwifiex_adapter *adapter = priv->adapter;
2679
2680 #ifdef CONFIG_DEBUG_FS
2681 mwifiex_dev_debugfs_remove(priv);
2682 #endif
2683
2684 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2685
2686 if (netif_carrier_ok(priv->netdev))
2687 netif_carrier_off(priv->netdev);
2688
2689 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2690 unregister_netdevice(wdev->netdev);
2691
2692 if (priv->dfs_cac_workqueue) {
2693 flush_workqueue(priv->dfs_cac_workqueue);
2694 destroy_workqueue(priv->dfs_cac_workqueue);
2695 priv->dfs_cac_workqueue = NULL;
2696 }
2697
2698 if (priv->dfs_chan_sw_workqueue) {
2699 flush_workqueue(priv->dfs_chan_sw_workqueue);
2700 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2701 priv->dfs_chan_sw_workqueue = NULL;
2702 }
2703 /* Clear the priv in adapter */
2704 priv->netdev->ieee80211_ptr = NULL;
2705 priv->netdev = NULL;
2706 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2707
2708 priv->media_connected = false;
2709
2710 switch (priv->bss_mode) {
2711 case NL80211_IFTYPE_UNSPECIFIED:
2712 case NL80211_IFTYPE_STATION:
2713 case NL80211_IFTYPE_ADHOC:
2714 adapter->curr_iface_comb.sta_intf++;
2715 break;
2716 case NL80211_IFTYPE_AP:
2717 adapter->curr_iface_comb.uap_intf++;
2718 break;
2719 case NL80211_IFTYPE_P2P_CLIENT:
2720 case NL80211_IFTYPE_P2P_GO:
2721 adapter->curr_iface_comb.p2p_intf++;
2722 break;
2723 default:
2724 dev_err(adapter->dev, "del_virtual_intf: type not supported\n");
2725 break;
2726 }
2727
2728 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2729
2730 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2731 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2732 kfree(priv->hist_data);
2733
2734 return 0;
2735 }
2736 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2737
2738 static bool
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern * pat,s8 * byte_seq,u8 max_byte_seq)2739 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2740 u8 max_byte_seq)
2741 {
2742 int j, k, valid_byte_cnt = 0;
2743 bool dont_care_byte = false;
2744
2745 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2746 for (k = 0; k < 8; k++) {
2747 if (pat->mask[j] & 1 << k) {
2748 memcpy(byte_seq + valid_byte_cnt,
2749 &pat->pattern[j * 8 + k], 1);
2750 valid_byte_cnt++;
2751 if (dont_care_byte)
2752 return false;
2753 } else {
2754 if (valid_byte_cnt)
2755 dont_care_byte = true;
2756 }
2757
2758 if (valid_byte_cnt > max_byte_seq)
2759 return false;
2760 }
2761 }
2762
2763 byte_seq[max_byte_seq] = valid_byte_cnt;
2764
2765 return true;
2766 }
2767
2768 #ifdef CONFIG_PM
mwifiex_set_auto_arp_mef_entry(struct mwifiex_private * priv,struct mwifiex_mef_entry * mef_entry)2769 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2770 struct mwifiex_mef_entry *mef_entry)
2771 {
2772 int i, filt_num = 0, num_ipv4 = 0;
2773 struct in_device *in_dev;
2774 struct in_ifaddr *ifa;
2775 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2776 struct mwifiex_adapter *adapter = priv->adapter;
2777
2778 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2779 mef_entry->action = MEF_ACTION_AUTO_ARP;
2780
2781 /* Enable ARP offload feature */
2782 memset(ips, 0, sizeof(ips));
2783 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2784 if (adapter->priv[i]->netdev) {
2785 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2786 if (!in_dev)
2787 continue;
2788 ifa = in_dev->ifa_list;
2789 if (!ifa || !ifa->ifa_local)
2790 continue;
2791 ips[i] = ifa->ifa_local;
2792 num_ipv4++;
2793 }
2794 }
2795
2796 for (i = 0; i < num_ipv4; i++) {
2797 if (!ips[i])
2798 continue;
2799 mef_entry->filter[filt_num].repeat = 1;
2800 memcpy(mef_entry->filter[filt_num].byte_seq,
2801 (u8 *)&ips[i], sizeof(ips[i]));
2802 mef_entry->filter[filt_num].
2803 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2804 sizeof(ips[i]);
2805 mef_entry->filter[filt_num].offset = 46;
2806 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2807 if (filt_num) {
2808 mef_entry->filter[filt_num].filt_action =
2809 TYPE_OR;
2810 }
2811 filt_num++;
2812 }
2813
2814 mef_entry->filter[filt_num].repeat = 1;
2815 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2816 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2817 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2818 mef_entry->filter[filt_num].offset = 20;
2819 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2820 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2821 }
2822
mwifiex_set_wowlan_mef_entry(struct mwifiex_private * priv,struct mwifiex_ds_mef_cfg * mef_cfg,struct mwifiex_mef_entry * mef_entry,struct cfg80211_wowlan * wowlan)2823 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2824 struct mwifiex_ds_mef_cfg *mef_cfg,
2825 struct mwifiex_mef_entry *mef_entry,
2826 struct cfg80211_wowlan *wowlan)
2827 {
2828 int i, filt_num = 0, ret = 0;
2829 bool first_pat = true;
2830 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2831 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2832 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2833
2834 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2835 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2836
2837 for (i = 0; i < wowlan->n_patterns; i++) {
2838 memset(byte_seq, 0, sizeof(byte_seq));
2839 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2840 byte_seq,
2841 MWIFIEX_MEF_MAX_BYTESEQ)) {
2842 dev_err(priv->adapter->dev, "Pattern not supported\n");
2843 kfree(mef_entry);
2844 return -EOPNOTSUPP;
2845 }
2846
2847 if (!wowlan->patterns[i].pkt_offset) {
2848 if (!(byte_seq[0] & 0x01) &&
2849 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2850 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2851 continue;
2852 } else if (is_broadcast_ether_addr(byte_seq)) {
2853 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
2854 continue;
2855 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2856 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2857 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2858 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2859 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
2860 continue;
2861 }
2862 }
2863 mef_entry->filter[filt_num].repeat = 1;
2864 mef_entry->filter[filt_num].offset =
2865 wowlan->patterns[i].pkt_offset;
2866 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2867 sizeof(byte_seq));
2868 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2869
2870 if (first_pat)
2871 first_pat = false;
2872 else
2873 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2874
2875 filt_num++;
2876 }
2877
2878 if (wowlan->magic_pkt) {
2879 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2880 mef_entry->filter[filt_num].repeat = 16;
2881 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2882 ETH_ALEN);
2883 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2884 ETH_ALEN;
2885 mef_entry->filter[filt_num].offset = 28;
2886 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2887 if (filt_num)
2888 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2889
2890 filt_num++;
2891 mef_entry->filter[filt_num].repeat = 16;
2892 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2893 ETH_ALEN);
2894 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2895 ETH_ALEN;
2896 mef_entry->filter[filt_num].offset = 56;
2897 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2898 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2899 }
2900 return ret;
2901 }
2902
mwifiex_set_mef_filter(struct mwifiex_private * priv,struct cfg80211_wowlan * wowlan)2903 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
2904 struct cfg80211_wowlan *wowlan)
2905 {
2906 int ret = 0, num_entries = 1;
2907 struct mwifiex_ds_mef_cfg mef_cfg;
2908 struct mwifiex_mef_entry *mef_entry;
2909
2910 if (wowlan->n_patterns || wowlan->magic_pkt)
2911 num_entries++;
2912
2913 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
2914 if (!mef_entry)
2915 return -ENOMEM;
2916
2917 memset(&mef_cfg, 0, sizeof(mef_cfg));
2918 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
2919 MWIFIEX_CRITERIA_UNICAST;
2920 mef_cfg.num_entries = num_entries;
2921 mef_cfg.mef_entry = mef_entry;
2922
2923 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
2924
2925 if (wowlan->n_patterns || wowlan->magic_pkt)
2926 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
2927 &mef_entry[1], wowlan);
2928
2929 if (!mef_cfg.criteria)
2930 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2931 MWIFIEX_CRITERIA_UNICAST |
2932 MWIFIEX_CRITERIA_MULTICAST;
2933
2934 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2935 HostCmd_ACT_GEN_SET, 0,
2936 &mef_cfg, true);
2937 kfree(mef_entry);
2938 return ret;
2939 }
2940
mwifiex_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2941 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2942 struct cfg80211_wowlan *wowlan)
2943 {
2944 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2945 struct mwifiex_ds_hs_cfg hs_cfg;
2946 int i, ret = 0;
2947 struct mwifiex_private *priv;
2948
2949 for (i = 0; i < adapter->priv_num; i++) {
2950 priv = adapter->priv[i];
2951 mwifiex_abort_cac(priv);
2952 }
2953
2954 mwifiex_cancel_all_pending_cmd(adapter);
2955
2956 if (!wowlan) {
2957 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2958 return 0;
2959 }
2960
2961 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2962
2963 if (!priv->media_connected) {
2964 dev_warn(adapter->dev,
2965 "Can not configure WOWLAN in disconnected state\n");
2966 return 0;
2967 }
2968
2969 ret = mwifiex_set_mef_filter(priv, wowlan);
2970 if (ret) {
2971 dev_err(adapter->dev, "Failed to set MEF filter\n");
2972 return ret;
2973 }
2974
2975 if (wowlan->disconnect) {
2976 memset(&hs_cfg, 0, sizeof(hs_cfg));
2977 hs_cfg.is_invoke_hostcmd = false;
2978 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
2979 hs_cfg.gpio = HS_CFG_GPIO_DEF;
2980 hs_cfg.gap = HS_CFG_GAP_DEF;
2981 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
2982 MWIFIEX_SYNC_CMD, &hs_cfg);
2983 if (ret) {
2984 dev_err(adapter->dev, "Failed to set HS params\n");
2985 return ret;
2986 }
2987 }
2988
2989 return ret;
2990 }
2991
mwifiex_cfg80211_resume(struct wiphy * wiphy)2992 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2993 {
2994 return 0;
2995 }
2996
mwifiex_cfg80211_set_wakeup(struct wiphy * wiphy,bool enabled)2997 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2998 bool enabled)
2999 {
3000 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3001
3002 device_set_wakeup_enable(adapter->dev, enabled);
3003 }
3004 #endif
3005
mwifiex_get_coalesce_pkt_type(u8 * byte_seq)3006 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3007 {
3008 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3009 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3010 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3011
3012 if ((byte_seq[0] & 0x01) &&
3013 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3014 return PACKET_TYPE_UNICAST;
3015 else if (!memcmp(byte_seq, bc_mac, 4))
3016 return PACKET_TYPE_BROADCAST;
3017 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3018 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3019 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3020 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3021 return PACKET_TYPE_MULTICAST;
3022
3023 return 0;
3024 }
3025
3026 static int
mwifiex_fill_coalesce_rule_info(struct mwifiex_private * priv,struct cfg80211_coalesce_rules * crule,struct mwifiex_coalesce_rule * mrule)3027 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3028 struct cfg80211_coalesce_rules *crule,
3029 struct mwifiex_coalesce_rule *mrule)
3030 {
3031 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3032 struct filt_field_param *param;
3033 int i;
3034
3035 mrule->max_coalescing_delay = crule->delay;
3036
3037 param = mrule->params;
3038
3039 for (i = 0; i < crule->n_patterns; i++) {
3040 memset(byte_seq, 0, sizeof(byte_seq));
3041 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3042 byte_seq,
3043 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3044 dev_err(priv->adapter->dev, "Pattern not supported\n");
3045 return -EOPNOTSUPP;
3046 }
3047
3048 if (!crule->patterns[i].pkt_offset) {
3049 u8 pkt_type;
3050
3051 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3052 if (pkt_type && mrule->pkt_type) {
3053 dev_err(priv->adapter->dev,
3054 "Multiple packet types not allowed\n");
3055 return -EOPNOTSUPP;
3056 } else if (pkt_type) {
3057 mrule->pkt_type = pkt_type;
3058 continue;
3059 }
3060 }
3061
3062 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3063 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3064 else
3065 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3066
3067 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3068 memcpy(param->operand_byte_stream, byte_seq,
3069 param->operand_len);
3070 param->offset = crule->patterns[i].pkt_offset;
3071 param++;
3072
3073 mrule->num_of_fields++;
3074 }
3075
3076 if (!mrule->pkt_type) {
3077 dev_err(priv->adapter->dev,
3078 "Packet type can not be determined\n");
3079 return -EOPNOTSUPP;
3080 }
3081
3082 return 0;
3083 }
3084
mwifiex_cfg80211_set_coalesce(struct wiphy * wiphy,struct cfg80211_coalesce * coalesce)3085 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3086 struct cfg80211_coalesce *coalesce)
3087 {
3088 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3089 int i, ret;
3090 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3091 struct mwifiex_private *priv =
3092 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3093
3094 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3095 if (!coalesce) {
3096 dev_dbg(adapter->dev,
3097 "Disable coalesce and reset all previous rules\n");
3098 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3099 HostCmd_ACT_GEN_SET, 0,
3100 &coalesce_cfg, true);
3101 }
3102
3103 coalesce_cfg.num_of_rules = coalesce->n_rules;
3104 for (i = 0; i < coalesce->n_rules; i++) {
3105 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3106 &coalesce_cfg.rule[i]);
3107 if (ret) {
3108 dev_err(priv->adapter->dev,
3109 "Recheck the patterns provided for rule %d\n",
3110 i + 1);
3111 return ret;
3112 }
3113 }
3114
3115 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3116 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3117 }
3118
3119 /* cfg80211 ops handler for tdls_mgmt.
3120 * Function prepares TDLS action frame packets and forwards them to FW
3121 */
3122 static int
mwifiex_cfg80211_tdls_mgmt(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 action_code,u8 dialog_token,u16 status_code,u32 peer_capability,bool initiator,const u8 * extra_ies,size_t extra_ies_len)3123 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3124 const u8 *peer, u8 action_code, u8 dialog_token,
3125 u16 status_code, u32 peer_capability,
3126 bool initiator, const u8 *extra_ies,
3127 size_t extra_ies_len)
3128 {
3129 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3130 int ret;
3131
3132 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3133 return -ENOTSUPP;
3134
3135 /* make sure we are in station mode and connected */
3136 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3137 return -ENOTSUPP;
3138
3139 switch (action_code) {
3140 case WLAN_TDLS_SETUP_REQUEST:
3141 dev_dbg(priv->adapter->dev,
3142 "Send TDLS Setup Request to %pM status_code=%d\n", peer,
3143 status_code);
3144 mwifiex_add_auto_tdls_peer(priv, peer);
3145 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3146 dialog_token, status_code,
3147 extra_ies, extra_ies_len);
3148 break;
3149 case WLAN_TDLS_SETUP_RESPONSE:
3150 mwifiex_add_auto_tdls_peer(priv, peer);
3151 dev_dbg(priv->adapter->dev,
3152 "Send TDLS Setup Response to %pM status_code=%d\n",
3153 peer, status_code);
3154 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3155 dialog_token, status_code,
3156 extra_ies, extra_ies_len);
3157 break;
3158 case WLAN_TDLS_SETUP_CONFIRM:
3159 dev_dbg(priv->adapter->dev,
3160 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3161 status_code);
3162 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3163 dialog_token, status_code,
3164 extra_ies, extra_ies_len);
3165 break;
3166 case WLAN_TDLS_TEARDOWN:
3167 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
3168 peer);
3169 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3170 dialog_token, status_code,
3171 extra_ies, extra_ies_len);
3172 break;
3173 case WLAN_TDLS_DISCOVERY_REQUEST:
3174 dev_dbg(priv->adapter->dev,
3175 "Send TDLS Discovery Request to %pM\n", peer);
3176 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3177 dialog_token, status_code,
3178 extra_ies, extra_ies_len);
3179 break;
3180 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3181 dev_dbg(priv->adapter->dev,
3182 "Send TDLS Discovery Response to %pM\n", peer);
3183 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3184 dialog_token, status_code,
3185 extra_ies, extra_ies_len);
3186 break;
3187 default:
3188 dev_warn(priv->adapter->dev,
3189 "Unknown TDLS mgmt/action frame %pM\n", peer);
3190 ret = -EINVAL;
3191 break;
3192 }
3193
3194 return ret;
3195 }
3196
3197 static int
mwifiex_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,enum nl80211_tdls_operation action)3198 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3199 const u8 *peer, enum nl80211_tdls_operation action)
3200 {
3201 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3202
3203 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3204 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3205 return -ENOTSUPP;
3206
3207 /* make sure we are in station mode and connected */
3208 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3209 return -ENOTSUPP;
3210
3211 dev_dbg(priv->adapter->dev,
3212 "TDLS peer=%pM, oper=%d\n", peer, action);
3213
3214 switch (action) {
3215 case NL80211_TDLS_ENABLE_LINK:
3216 action = MWIFIEX_TDLS_ENABLE_LINK;
3217 break;
3218 case NL80211_TDLS_DISABLE_LINK:
3219 action = MWIFIEX_TDLS_DISABLE_LINK;
3220 break;
3221 case NL80211_TDLS_TEARDOWN:
3222 /* shouldn't happen!*/
3223 dev_warn(priv->adapter->dev,
3224 "tdls_oper: teardown from driver not supported\n");
3225 return -EINVAL;
3226 case NL80211_TDLS_SETUP:
3227 /* shouldn't happen!*/
3228 dev_warn(priv->adapter->dev,
3229 "tdls_oper: setup from driver not supported\n");
3230 return -EINVAL;
3231 case NL80211_TDLS_DISCOVERY_REQ:
3232 /* shouldn't happen!*/
3233 dev_warn(priv->adapter->dev,
3234 "tdls_oper: discovery from driver not supported\n");
3235 return -EINVAL;
3236 default:
3237 dev_err(priv->adapter->dev,
3238 "tdls_oper: operation not supported\n");
3239 return -ENOTSUPP;
3240 }
3241
3242 return mwifiex_tdls_oper(priv, peer, action);
3243 }
3244
3245 static int
mwifiex_cfg80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3246 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3247 const u8 *mac, struct station_parameters *params)
3248 {
3249 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3250
3251 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3252 return -ENOTSUPP;
3253
3254 /* make sure we are in station mode and connected */
3255 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3256 return -ENOTSUPP;
3257
3258 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3259 }
3260
3261 static int
mwifiex_cfg80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3262 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3263 struct cfg80211_csa_settings *params)
3264 {
3265 struct ieee_types_header *chsw_ie;
3266 struct ieee80211_channel_sw_ie *channel_sw;
3267 int chsw_msec;
3268 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3269
3270 if (priv->adapter->scan_processing) {
3271 dev_err(priv->adapter->dev,
3272 "radar detection: scan in process...\n");
3273 return -EBUSY;
3274 }
3275
3276 if (priv->wdev.cac_started)
3277 return -EBUSY;
3278
3279 if (cfg80211_chandef_identical(¶ms->chandef,
3280 &priv->dfs_chandef))
3281 return -EINVAL;
3282
3283 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3284 params->beacon_csa.tail,
3285 params->beacon_csa.tail_len);
3286 if (!chsw_ie) {
3287 dev_err(priv->adapter->dev,
3288 "Could not parse channel switch announcement IE\n");
3289 return -EINVAL;
3290 }
3291
3292 channel_sw = (void *)(chsw_ie + 1);
3293 if (channel_sw->mode) {
3294 if (netif_carrier_ok(priv->netdev))
3295 netif_carrier_off(priv->netdev);
3296 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3297 }
3298
3299 if (mwifiex_del_mgmt_ies(priv))
3300 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
3301
3302 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) {
3303 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
3304 return -EFAULT;
3305 }
3306
3307 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef));
3308 memcpy(&priv->beacon_after, ¶ms->beacon_after,
3309 sizeof(priv->beacon_after));
3310
3311 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3312 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3313 msecs_to_jiffies(chsw_msec));
3314 return 0;
3315 }
3316
3317 static int
mwifiex_cfg80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3318 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3319 struct net_device *dev,
3320 struct cfg80211_chan_def *chandef,
3321 u32 cac_time_ms)
3322 {
3323 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3324 struct mwifiex_radar_params radar_params;
3325
3326 if (priv->adapter->scan_processing) {
3327 dev_err(priv->adapter->dev,
3328 "radar detection: scan already in process...\n");
3329 return -EBUSY;
3330 }
3331
3332 if (!mwifiex_is_11h_active(priv)) {
3333 dev_dbg(priv->adapter->dev, "Enable 11h extensions in FW\n");
3334 if (mwifiex_11h_activate(priv, true)) {
3335 dev_err(priv->adapter->dev,
3336 "Failed to activate 11h extensions!!");
3337 return -1;
3338 }
3339 priv->state_11h.is_11h_active = true;
3340 }
3341
3342 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3343 radar_params.chandef = chandef;
3344 radar_params.cac_time_ms = cac_time_ms;
3345
3346 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3347
3348 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3349 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3350 return -1;
3351
3352 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3353 msecs_to_jiffies(cac_time_ms));
3354 return 0;
3355 }
3356
3357 static int
mwifiex_cfg80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3358 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3359 const u8 *mac,
3360 struct station_parameters *params)
3361 {
3362 int ret;
3363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3364
3365 /* we support change_station handler only for TDLS peers*/
3366 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3367 return -ENOTSUPP;
3368
3369 /* make sure we are in station mode and connected */
3370 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3371 return -ENOTSUPP;
3372
3373 priv->sta_params = params;
3374
3375 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3376 priv->sta_params = NULL;
3377
3378 return ret;
3379 }
3380
3381 /* station cfg80211 operations */
3382 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3383 .add_virtual_intf = mwifiex_add_virtual_intf,
3384 .del_virtual_intf = mwifiex_del_virtual_intf,
3385 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3386 .scan = mwifiex_cfg80211_scan,
3387 .connect = mwifiex_cfg80211_connect,
3388 .disconnect = mwifiex_cfg80211_disconnect,
3389 .get_station = mwifiex_cfg80211_get_station,
3390 .dump_station = mwifiex_cfg80211_dump_station,
3391 .dump_survey = mwifiex_cfg80211_dump_survey,
3392 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3393 .join_ibss = mwifiex_cfg80211_join_ibss,
3394 .leave_ibss = mwifiex_cfg80211_leave_ibss,
3395 .add_key = mwifiex_cfg80211_add_key,
3396 .del_key = mwifiex_cfg80211_del_key,
3397 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3398 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3399 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3400 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3401 .set_default_key = mwifiex_cfg80211_set_default_key,
3402 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3403 .set_tx_power = mwifiex_cfg80211_set_tx_power,
3404 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3405 .start_ap = mwifiex_cfg80211_start_ap,
3406 .stop_ap = mwifiex_cfg80211_stop_ap,
3407 .change_beacon = mwifiex_cfg80211_change_beacon,
3408 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3409 .set_antenna = mwifiex_cfg80211_set_antenna,
3410 .del_station = mwifiex_cfg80211_del_station,
3411 #ifdef CONFIG_PM
3412 .suspend = mwifiex_cfg80211_suspend,
3413 .resume = mwifiex_cfg80211_resume,
3414 .set_wakeup = mwifiex_cfg80211_set_wakeup,
3415 #endif
3416 .set_coalesce = mwifiex_cfg80211_set_coalesce,
3417 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3418 .tdls_oper = mwifiex_cfg80211_tdls_oper,
3419 .add_station = mwifiex_cfg80211_add_station,
3420 .change_station = mwifiex_cfg80211_change_station,
3421 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3422 .channel_switch = mwifiex_cfg80211_channel_switch,
3423 };
3424
3425 #ifdef CONFIG_PM
3426 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3427 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3428 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3429 .pattern_min_len = 1,
3430 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3431 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3432 };
3433 #endif
3434
mwifiex_is_valid_alpha2(const char * alpha2)3435 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3436 {
3437 if (!alpha2 || strlen(alpha2) != 2)
3438 return false;
3439
3440 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3441 return true;
3442
3443 return false;
3444 }
3445
3446 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3447 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3448 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3449 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3450 .pattern_min_len = 1,
3451 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3452 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3453 };
3454
mwifiex_init_channel_scan_gap(struct mwifiex_adapter * adapter)3455 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3456 {
3457 u32 n_channels_bg, n_channels_a = 0;
3458
3459 n_channels_bg = mwifiex_band_2ghz.n_channels;
3460
3461 if (adapter->config_bands & BAND_A)
3462 n_channels_a = mwifiex_band_5ghz.n_channels;
3463
3464 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3465 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3466 adapter->num_in_chan_stats);
3467
3468 if (!adapter->chan_stats)
3469 return -ENOMEM;
3470
3471 return 0;
3472 }
3473
3474 /*
3475 * This function registers the device with CFG802.11 subsystem.
3476 *
3477 * The function creates the wireless device/wiphy, populates it with
3478 * default parameters and handler function pointers, and finally
3479 * registers the device.
3480 */
3481
mwifiex_register_cfg80211(struct mwifiex_adapter * adapter)3482 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3483 {
3484 int ret;
3485 void *wdev_priv;
3486 struct wiphy *wiphy;
3487 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3488 u8 *country_code;
3489 u32 thr, retry;
3490
3491 /* create a new wiphy for use with cfg80211 */
3492 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3493 sizeof(struct mwifiex_adapter *));
3494 if (!wiphy) {
3495 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
3496 return -ENOMEM;
3497 }
3498 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3499 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3500 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3501 wiphy->max_remain_on_channel_duration = 5000;
3502 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3503 BIT(NL80211_IFTYPE_ADHOC) |
3504 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3505 BIT(NL80211_IFTYPE_P2P_GO) |
3506 BIT(NL80211_IFTYPE_AP);
3507
3508 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3509 if (adapter->config_bands & BAND_A)
3510 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3511 else
3512 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3513
3514 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3515 wiphy->n_iface_combinations = 1;
3516
3517 /* Initialize cipher suits */
3518 wiphy->cipher_suites = mwifiex_cipher_suites;
3519 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3520
3521 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3522 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3523 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3524 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3525 WIPHY_FLAG_AP_UAPSD |
3526 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3527 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
3528
3529 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3530 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3531 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3532
3533 #ifdef CONFIG_PM
3534 wiphy->wowlan = &mwifiex_wowlan_support;
3535 #endif
3536
3537 wiphy->coalesce = &mwifiex_coalesce_support;
3538
3539 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3540 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3541 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3542
3543 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3544 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3545
3546 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3547 NL80211_FEATURE_INACTIVITY_TIMER |
3548 NL80211_FEATURE_NEED_OBSS_SCAN;
3549
3550 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3551 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3552
3553 /* Reserve space for mwifiex specific private data for BSS */
3554 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3555
3556 wiphy->reg_notifier = mwifiex_reg_notifier;
3557
3558 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3559 wdev_priv = wiphy_priv(wiphy);
3560 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3561
3562 set_wiphy_dev(wiphy, priv->adapter->dev);
3563
3564 ret = wiphy_register(wiphy);
3565 if (ret < 0) {
3566 dev_err(adapter->dev,
3567 "%s: wiphy_register failed: %d\n", __func__, ret);
3568 wiphy_free(wiphy);
3569 return ret;
3570 }
3571
3572 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3573 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3574 regulatory_hint(wiphy, reg_alpha2);
3575 } else {
3576 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3577 if (country_code)
3578 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3579 country_code);
3580 }
3581
3582 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3583 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3584 wiphy->frag_threshold = thr;
3585 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3586 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3587 wiphy->rts_threshold = thr;
3588 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3589 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3590 wiphy->retry_short = (u8) retry;
3591 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3592 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3593 wiphy->retry_long = (u8) retry;
3594
3595 adapter->wiphy = wiphy;
3596 return ret;
3597 }
3598