1 /*
2 * NXP Wireless LAN device driver: CFG80211
3 *
4 * Copyright 2011-2020 NXP
5 *
6 * This software file (the "File") is distributed by NXP
7 * 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 #include "11n.h"
23 #include "wmm.h"
24
25 static char *reg_alpha2;
26 module_param(reg_alpha2, charp, 0);
27
28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
29 {
30 .max = MWIFIEX_MAX_BSS_NUM,
31 .types = BIT(NL80211_IFTYPE_STATION) |
32 BIT(NL80211_IFTYPE_P2P_GO) |
33 BIT(NL80211_IFTYPE_P2P_CLIENT) |
34 BIT(NL80211_IFTYPE_AP),
35 },
36 };
37
38 static const struct ieee80211_iface_combination
39 mwifiex_iface_comb_ap_sta = {
40 .limits = mwifiex_ap_sta_limits,
41 .num_different_channels = 1,
42 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
43 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
44 .beacon_int_infra_match = true,
45 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
46 BIT(NL80211_CHAN_WIDTH_20) |
47 BIT(NL80211_CHAN_WIDTH_40),
48 };
49
50 static const struct ieee80211_iface_combination
51 mwifiex_iface_comb_ap_sta_vht = {
52 .limits = mwifiex_ap_sta_limits,
53 .num_different_channels = 1,
54 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
55 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
56 .beacon_int_infra_match = true,
57 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
58 BIT(NL80211_CHAN_WIDTH_20) |
59 BIT(NL80211_CHAN_WIDTH_40) |
60 BIT(NL80211_CHAN_WIDTH_80),
61 };
62
63 static const struct
64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
65 .limits = mwifiex_ap_sta_limits,
66 .num_different_channels = 2,
67 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
68 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
69 .beacon_int_infra_match = true,
70 };
71
72 /*
73 * This function maps the nl802.11 channel type into driver channel type.
74 *
75 * The mapping is as follows -
76 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
77 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
78 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
79 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
80 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
81 */
mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
83 {
84 switch (chan_type) {
85 case NL80211_CHAN_NO_HT:
86 case NL80211_CHAN_HT20:
87 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
88 case NL80211_CHAN_HT40PLUS:
89 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
90 case NL80211_CHAN_HT40MINUS:
91 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
92 default:
93 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
94 }
95 }
96
97 /* This function maps IEEE HT secondary channel type to NL80211 channel type
98 */
mwifiex_get_chan_type(struct mwifiex_private * priv)99 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
100 {
101 struct mwifiex_channel_band channel_band;
102 int ret;
103
104 ret = mwifiex_get_chan_info(priv, &channel_band);
105
106 if (!ret) {
107 switch (channel_band.band_config.chan_width) {
108 case CHAN_BW_20MHZ:
109 if (IS_11N_ENABLED(priv))
110 return NL80211_CHAN_HT20;
111 else
112 return NL80211_CHAN_NO_HT;
113 case CHAN_BW_40MHZ:
114 if (channel_band.band_config.chan2_offset ==
115 SEC_CHAN_ABOVE)
116 return NL80211_CHAN_HT40PLUS;
117 else
118 return NL80211_CHAN_HT40MINUS;
119 default:
120 return NL80211_CHAN_HT20;
121 }
122 }
123
124 return NL80211_CHAN_HT20;
125 }
126
127 /*
128 * This function checks whether WEP is set.
129 */
130 static int
mwifiex_is_alg_wep(u32 cipher)131 mwifiex_is_alg_wep(u32 cipher)
132 {
133 switch (cipher) {
134 case WLAN_CIPHER_SUITE_WEP40:
135 case WLAN_CIPHER_SUITE_WEP104:
136 return 1;
137 default:
138 break;
139 }
140
141 return 0;
142 }
143
144 /*
145 * This function retrieves the private structure from kernel wiphy structure.
146 */
mwifiex_cfg80211_get_adapter(struct wiphy * wiphy)147 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
148 {
149 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
150 }
151
152 /*
153 * CFG802.11 operation handler to delete a network key.
154 */
155 static int
mwifiex_cfg80211_del_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool pairwise,const u8 * mac_addr)156 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
157 u8 key_index, bool pairwise, const u8 *mac_addr)
158 {
159 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
160 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
161 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
162
163 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
164 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
165 return -EFAULT;
166 }
167
168 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
169 return 0;
170 }
171
172 /*
173 * This function forms an skb for management frame.
174 */
175 static int
mwifiex_form_mgmt_frame(struct sk_buff * skb,const u8 * buf,size_t len)176 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
177 {
178 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
179 u16 pkt_len;
180 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
181
182 pkt_len = len + ETH_ALEN;
183
184 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
185 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
186 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
187
188 memcpy(skb_push(skb, sizeof(tx_control)),
189 &tx_control, sizeof(tx_control));
190
191 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
192
193 /* Add packet data and address4 */
194 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
195 skb_put_data(skb, addr, ETH_ALEN);
196 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
197 len - sizeof(struct ieee80211_hdr_3addr));
198
199 skb->priority = LOW_PRIO_TID;
200 __net_timestamp(skb);
201
202 return 0;
203 }
204
205 /*
206 * CFG802.11 operation handler to transmit a management frame.
207 */
208 static int
mwifiex_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)209 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
210 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
211 {
212 const u8 *buf = params->buf;
213 size_t len = params->len;
214 struct sk_buff *skb;
215 u16 pkt_len;
216 const struct ieee80211_mgmt *mgmt;
217 struct mwifiex_txinfo *tx_info;
218 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
219
220 if (!buf || !len) {
221 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
222 return -EFAULT;
223 }
224
225 mgmt = (const struct ieee80211_mgmt *)buf;
226 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
227 ieee80211_is_probe_resp(mgmt->frame_control)) {
228 /* Since we support offload probe resp, we need to skip probe
229 * resp in AP or GO mode */
230 mwifiex_dbg(priv->adapter, INFO,
231 "info: skip to send probe resp in AP or GO mode\n");
232 return 0;
233 }
234
235 pkt_len = len + ETH_ALEN;
236 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
237 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
238 pkt_len + sizeof(pkt_len));
239
240 if (!skb) {
241 mwifiex_dbg(priv->adapter, ERROR,
242 "allocate skb failed for management frame\n");
243 return -ENOMEM;
244 }
245
246 tx_info = MWIFIEX_SKB_TXCB(skb);
247 memset(tx_info, 0, sizeof(*tx_info));
248 tx_info->bss_num = priv->bss_num;
249 tx_info->bss_type = priv->bss_type;
250 tx_info->pkt_len = pkt_len;
251
252 mwifiex_form_mgmt_frame(skb, buf, len);
253 *cookie = prandom_u32() | 1;
254
255 if (ieee80211_is_action(mgmt->frame_control))
256 skb = mwifiex_clone_skb_for_tx_status(priv,
257 skb,
258 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
259 else
260 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
261 GFP_ATOMIC);
262
263 mwifiex_queue_tx_pkt(priv, skb);
264
265 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
266 return 0;
267 }
268
269 /*
270 * CFG802.11 operation handler to register a mgmt frame.
271 */
272 static void
mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)273 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
274 struct wireless_dev *wdev,
275 struct mgmt_frame_regs *upd)
276 {
277 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
278 u32 mask = upd->interface_stypes;
279
280 if (mask != priv->mgmt_frame_mask) {
281 priv->mgmt_frame_mask = mask;
282 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
283 HostCmd_ACT_GEN_SET, 0,
284 &priv->mgmt_frame_mask, false);
285 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
286 }
287 }
288
289 /*
290 * CFG802.11 operation handler to remain on channel.
291 */
292 static int
mwifiex_cfg80211_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)293 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
294 struct wireless_dev *wdev,
295 struct ieee80211_channel *chan,
296 unsigned int duration, u64 *cookie)
297 {
298 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
299 int ret;
300
301 if (!chan || !cookie) {
302 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
303 return -EINVAL;
304 }
305
306 if (priv->roc_cfg.cookie) {
307 mwifiex_dbg(priv->adapter, INFO,
308 "info: ongoing ROC, cookie = 0x%llx\n",
309 priv->roc_cfg.cookie);
310 return -EBUSY;
311 }
312
313 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
314 duration);
315
316 if (!ret) {
317 *cookie = prandom_u32() | 1;
318 priv->roc_cfg.cookie = *cookie;
319 priv->roc_cfg.chan = *chan;
320
321 cfg80211_ready_on_channel(wdev, *cookie, chan,
322 duration, GFP_ATOMIC);
323
324 mwifiex_dbg(priv->adapter, INFO,
325 "info: ROC, cookie = 0x%llx\n", *cookie);
326 }
327
328 return ret;
329 }
330
331 /*
332 * CFG802.11 operation handler to cancel remain on channel.
333 */
334 static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)335 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
336 struct wireless_dev *wdev, u64 cookie)
337 {
338 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
339 int ret;
340
341 if (cookie != priv->roc_cfg.cookie)
342 return -ENOENT;
343
344 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
345 &priv->roc_cfg.chan, 0);
346
347 if (!ret) {
348 cfg80211_remain_on_channel_expired(wdev, cookie,
349 &priv->roc_cfg.chan,
350 GFP_ATOMIC);
351
352 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
353
354 mwifiex_dbg(priv->adapter, INFO,
355 "info: cancel ROC, cookie = 0x%llx\n", cookie);
356 }
357
358 return ret;
359 }
360
361 /*
362 * CFG802.11 operation handler to set Tx power.
363 */
364 static int
mwifiex_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)365 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
366 struct wireless_dev *wdev,
367 enum nl80211_tx_power_setting type,
368 int mbm)
369 {
370 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
371 struct mwifiex_private *priv;
372 struct mwifiex_power_cfg power_cfg;
373 int dbm = MBM_TO_DBM(mbm);
374
375 switch (type) {
376 case NL80211_TX_POWER_FIXED:
377 power_cfg.is_power_auto = 0;
378 power_cfg.is_power_fixed = 1;
379 power_cfg.power_level = dbm;
380 break;
381 case NL80211_TX_POWER_LIMITED:
382 power_cfg.is_power_auto = 0;
383 power_cfg.is_power_fixed = 0;
384 power_cfg.power_level = dbm;
385 break;
386 case NL80211_TX_POWER_AUTOMATIC:
387 power_cfg.is_power_auto = 1;
388 break;
389 }
390
391 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
392
393 return mwifiex_set_tx_power(priv, &power_cfg);
394 }
395
396 /*
397 * CFG802.11 operation handler to get Tx power.
398 */
399 static int
mwifiex_cfg80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)400 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
401 struct wireless_dev *wdev,
402 int *dbm)
403 {
404 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
405 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
406 MWIFIEX_BSS_ROLE_ANY);
407 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
408 HostCmd_ACT_GEN_GET, 0, NULL, true);
409
410 if (ret < 0)
411 return ret;
412
413 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
414 *dbm = priv->tx_power_level;
415
416 return 0;
417 }
418
419 /*
420 * CFG802.11 operation handler to set Power Save option.
421 *
422 * The timeout value, if provided, is currently ignored.
423 */
424 static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)425 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
426 struct net_device *dev,
427 bool enabled, int timeout)
428 {
429 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
430 u32 ps_mode;
431
432 if (timeout)
433 mwifiex_dbg(priv->adapter, INFO,
434 "info: ignore timeout value for IEEE Power Save\n");
435
436 ps_mode = enabled;
437
438 return mwifiex_drv_set_power(priv, &ps_mode);
439 }
440
441 /*
442 * CFG802.11 operation handler to set the default network key.
443 */
444 static int
mwifiex_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool unicast,bool multicast)445 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
446 u8 key_index, bool unicast,
447 bool multicast)
448 {
449 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
450
451 /* Return if WEP key not configured */
452 if (!priv->sec_info.wep_enabled)
453 return 0;
454
455 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
456 priv->wep_key_curr_index = key_index;
457 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
458 NULL, 0)) {
459 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
460 return -EFAULT;
461 }
462
463 return 0;
464 }
465
466 /*
467 * CFG802.11 operation handler to add a network key.
468 */
469 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)470 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
471 u8 key_index, bool pairwise, const u8 *mac_addr,
472 struct key_params *params)
473 {
474 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
475 struct mwifiex_wep_key *wep_key;
476 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
477 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
478
479 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
480 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
481 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
482 if (params->key && params->key_len) {
483 wep_key = &priv->wep_key[key_index];
484 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
485 memcpy(wep_key->key_material, params->key,
486 params->key_len);
487 wep_key->key_index = key_index;
488 wep_key->key_length = params->key_len;
489 priv->sec_info.wep_enabled = 1;
490 }
491 return 0;
492 }
493
494 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
495 key_index, peer_mac, 0)) {
496 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
497 return -EFAULT;
498 }
499
500 return 0;
501 }
502
503 /*
504 * CFG802.11 operation handler to set default mgmt key.
505 */
506 static int
mwifiex_cfg80211_set_default_mgmt_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index)507 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
508 struct net_device *netdev,
509 u8 key_index)
510 {
511 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
512 struct mwifiex_ds_encrypt_key encrypt_key;
513
514 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
515
516 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
517 encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
518 encrypt_key.key_index = key_index;
519 encrypt_key.is_igtk_def_key = true;
520 eth_broadcast_addr(encrypt_key.mac_addr);
521
522 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
523 HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) {
524 mwifiex_dbg(priv->adapter, ERROR,
525 "Sending KEY_MATERIAL command failed\n");
526 return -1;
527 }
528
529 return 0;
530 }
531
532 /*
533 * This function sends domain information to the firmware.
534 *
535 * The following information are passed to the firmware -
536 * - Country codes
537 * - Sub bands (first channel, number of channels, maximum Tx power)
538 */
mwifiex_send_domain_info_cmd_fw(struct wiphy * wiphy)539 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
540 {
541 u8 no_of_triplet = 0;
542 struct ieee80211_country_ie_triplet *t;
543 u8 no_of_parsed_chan = 0;
544 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
545 u8 i, flag = 0;
546 enum nl80211_band band;
547 struct ieee80211_supported_band *sband;
548 struct ieee80211_channel *ch;
549 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
550 struct mwifiex_private *priv;
551 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
552
553 /* Set country code */
554 domain_info->country_code[0] = adapter->country_code[0];
555 domain_info->country_code[1] = adapter->country_code[1];
556 domain_info->country_code[2] = ' ';
557
558 band = mwifiex_band_to_radio_type(adapter->config_bands);
559 if (!wiphy->bands[band]) {
560 mwifiex_dbg(adapter, ERROR,
561 "11D: setting domain info in FW\n");
562 return -1;
563 }
564
565 sband = wiphy->bands[band];
566
567 for (i = 0; i < sband->n_channels ; i++) {
568 ch = &sband->channels[i];
569 if (ch->flags & IEEE80211_CHAN_DISABLED)
570 continue;
571
572 if (!flag) {
573 flag = 1;
574 first_chan = (u32) ch->hw_value;
575 next_chan = first_chan;
576 max_pwr = ch->max_power;
577 no_of_parsed_chan = 1;
578 continue;
579 }
580
581 if (ch->hw_value == next_chan + 1 &&
582 ch->max_power == max_pwr) {
583 next_chan++;
584 no_of_parsed_chan++;
585 } else {
586 t = &domain_info->triplet[no_of_triplet];
587 t->chans.first_channel = first_chan;
588 t->chans.num_channels = no_of_parsed_chan;
589 t->chans.max_power = max_pwr;
590 no_of_triplet++;
591 first_chan = (u32) ch->hw_value;
592 next_chan = first_chan;
593 max_pwr = ch->max_power;
594 no_of_parsed_chan = 1;
595 }
596 }
597
598 if (flag) {
599 t = &domain_info->triplet[no_of_triplet];
600 t->chans.first_channel = first_chan;
601 t->chans.num_channels = no_of_parsed_chan;
602 t->chans.max_power = max_pwr;
603 no_of_triplet++;
604 }
605
606 domain_info->no_of_triplet = no_of_triplet;
607
608 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
609
610 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
611 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
612 mwifiex_dbg(adapter, INFO,
613 "11D: setting domain info in FW\n");
614 return -1;
615 }
616
617 return 0;
618 }
619
mwifiex_reg_apply_radar_flags(struct wiphy * wiphy)620 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
621 {
622 struct ieee80211_supported_band *sband;
623 struct ieee80211_channel *chan;
624 unsigned int i;
625
626 if (!wiphy->bands[NL80211_BAND_5GHZ])
627 return;
628 sband = wiphy->bands[NL80211_BAND_5GHZ];
629
630 for (i = 0; i < sband->n_channels; i++) {
631 chan = &sband->channels[i];
632 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
633 (chan->flags & IEEE80211_CHAN_RADAR))
634 chan->flags |= IEEE80211_CHAN_NO_IR;
635 }
636 }
637
638 /*
639 * CFG802.11 regulatory domain callback function.
640 *
641 * This function is called when the regulatory domain is changed due to the
642 * following reasons -
643 * - Set by driver
644 * - Set by system core
645 * - Set by user
646 * - Set bt Country IE
647 */
mwifiex_reg_notifier(struct wiphy * wiphy,struct regulatory_request * request)648 static void mwifiex_reg_notifier(struct wiphy *wiphy,
649 struct regulatory_request *request)
650 {
651 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
652 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
653 MWIFIEX_BSS_ROLE_ANY);
654 mwifiex_dbg(adapter, INFO,
655 "info: cfg80211 regulatory domain callback for %c%c\n",
656 request->alpha2[0], request->alpha2[1]);
657 mwifiex_reg_apply_radar_flags(wiphy);
658
659 switch (request->initiator) {
660 case NL80211_REGDOM_SET_BY_DRIVER:
661 case NL80211_REGDOM_SET_BY_CORE:
662 case NL80211_REGDOM_SET_BY_USER:
663 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
664 break;
665 default:
666 mwifiex_dbg(adapter, ERROR,
667 "unknown regdom initiator: %d\n",
668 request->initiator);
669 return;
670 }
671
672 /* Don't send world or same regdom info to firmware */
673 if (strncmp(request->alpha2, "00", 2) &&
674 strncmp(request->alpha2, adapter->country_code,
675 sizeof(request->alpha2))) {
676 memcpy(adapter->country_code, request->alpha2,
677 sizeof(request->alpha2));
678 mwifiex_send_domain_info_cmd_fw(wiphy);
679 mwifiex_dnld_txpwr_table(priv);
680 }
681 }
682
683 /*
684 * This function sets the fragmentation threshold.
685 *
686 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
687 * and MWIFIEX_FRAG_MAX_VALUE.
688 */
689 static int
mwifiex_set_frag(struct mwifiex_private * priv,u32 frag_thr)690 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
691 {
692 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
693 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
694 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
695
696 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
697 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
698 &frag_thr, true);
699 }
700
701 /*
702 * This function sets the RTS threshold.
703
704 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
705 * and MWIFIEX_RTS_MAX_VALUE.
706 */
707 static int
mwifiex_set_rts(struct mwifiex_private * priv,u32 rts_thr)708 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
709 {
710 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
711 rts_thr = MWIFIEX_RTS_MAX_VALUE;
712
713 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
714 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
715 &rts_thr, true);
716 }
717
718 /*
719 * CFG802.11 operation handler to set wiphy parameters.
720 *
721 * This function can be used to set the RTS threshold and the
722 * Fragmentation threshold of the driver.
723 */
724 static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)725 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
726 {
727 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
728 struct mwifiex_private *priv;
729 struct mwifiex_uap_bss_param *bss_cfg;
730 int ret;
731
732 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
733
734 switch (priv->bss_role) {
735 case MWIFIEX_BSS_ROLE_UAP:
736 if (priv->bss_started) {
737 mwifiex_dbg(adapter, ERROR,
738 "cannot change wiphy params when bss started");
739 return -EINVAL;
740 }
741
742 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
743 if (!bss_cfg)
744 return -ENOMEM;
745
746 mwifiex_set_sys_config_invalid_data(bss_cfg);
747
748 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
749 bss_cfg->rts_threshold = wiphy->rts_threshold;
750 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
751 bss_cfg->frag_threshold = wiphy->frag_threshold;
752 if (changed & WIPHY_PARAM_RETRY_LONG)
753 bss_cfg->retry_limit = wiphy->retry_long;
754
755 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
756 HostCmd_ACT_GEN_SET,
757 UAP_BSS_PARAMS_I, bss_cfg,
758 false);
759
760 kfree(bss_cfg);
761 if (ret) {
762 mwifiex_dbg(adapter, ERROR,
763 "Failed to set wiphy phy params\n");
764 return ret;
765 }
766 break;
767
768 case MWIFIEX_BSS_ROLE_STA:
769 if (priv->media_connected) {
770 mwifiex_dbg(adapter, ERROR,
771 "cannot change wiphy params when connected");
772 return -EINVAL;
773 }
774 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
775 ret = mwifiex_set_rts(priv,
776 wiphy->rts_threshold);
777 if (ret)
778 return ret;
779 }
780 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
781 ret = mwifiex_set_frag(priv,
782 wiphy->frag_threshold);
783 if (ret)
784 return ret;
785 }
786 break;
787 }
788
789 return 0;
790 }
791
792 static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private * priv)793 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
794 {
795 u16 mode = P2P_MODE_DISABLE;
796
797 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
798 HostCmd_ACT_GEN_SET, 0, &mode, true))
799 return -1;
800
801 return 0;
802 }
803
804 /*
805 * This function initializes the functionalities for P2P client.
806 * The P2P client initialization sequence is:
807 * disable -> device -> client
808 */
809 static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private * priv)810 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
811 {
812 u16 mode;
813
814 if (mwifiex_cfg80211_deinit_p2p(priv))
815 return -1;
816
817 mode = P2P_MODE_DEVICE;
818 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
819 HostCmd_ACT_GEN_SET, 0, &mode, true))
820 return -1;
821
822 mode = P2P_MODE_CLIENT;
823 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
824 HostCmd_ACT_GEN_SET, 0, &mode, true))
825 return -1;
826
827 return 0;
828 }
829
830 /*
831 * This function initializes the functionalities for P2P GO.
832 * The P2P GO initialization sequence is:
833 * disable -> device -> GO
834 */
835 static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private * priv)836 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
837 {
838 u16 mode;
839
840 if (mwifiex_cfg80211_deinit_p2p(priv))
841 return -1;
842
843 mode = P2P_MODE_DEVICE;
844 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
845 HostCmd_ACT_GEN_SET, 0, &mode, true))
846 return -1;
847
848 mode = P2P_MODE_GO;
849 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
850 HostCmd_ACT_GEN_SET, 0, &mode, true))
851 return -1;
852
853 return 0;
854 }
855
mwifiex_deinit_priv_params(struct mwifiex_private * priv)856 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
857 {
858 struct mwifiex_adapter *adapter = priv->adapter;
859 unsigned long flags;
860
861 priv->mgmt_frame_mask = 0;
862 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
863 HostCmd_ACT_GEN_SET, 0,
864 &priv->mgmt_frame_mask, false)) {
865 mwifiex_dbg(adapter, ERROR,
866 "could not unregister mgmt frame rx\n");
867 return -1;
868 }
869
870 mwifiex_deauthenticate(priv, NULL);
871
872 spin_lock_irqsave(&adapter->main_proc_lock, flags);
873 adapter->main_locked = true;
874 if (adapter->mwifiex_processing) {
875 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
876 flush_workqueue(adapter->workqueue);
877 } else {
878 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
879 }
880
881 spin_lock_bh(&adapter->rx_proc_lock);
882 adapter->rx_locked = true;
883 if (adapter->rx_processing) {
884 spin_unlock_bh(&adapter->rx_proc_lock);
885 flush_workqueue(adapter->rx_workqueue);
886 } else {
887 spin_unlock_bh(&adapter->rx_proc_lock);
888 }
889
890 mwifiex_free_priv(priv);
891 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
892 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
893 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
894
895 return 0;
896 }
897
898 static int
mwifiex_init_new_priv_params(struct mwifiex_private * priv,struct net_device * dev,enum nl80211_iftype type)899 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
900 struct net_device *dev,
901 enum nl80211_iftype type)
902 {
903 struct mwifiex_adapter *adapter = priv->adapter;
904 unsigned long flags;
905
906 mwifiex_init_priv(priv);
907
908 priv->bss_mode = type;
909 priv->wdev.iftype = type;
910
911 mwifiex_init_priv_params(priv, priv->netdev);
912 priv->bss_started = 0;
913
914 switch (type) {
915 case NL80211_IFTYPE_STATION:
916 case NL80211_IFTYPE_ADHOC:
917 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
918 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
919 break;
920 case NL80211_IFTYPE_P2P_CLIENT:
921 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
922 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
923 break;
924 case NL80211_IFTYPE_P2P_GO:
925 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
926 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
927 break;
928 case NL80211_IFTYPE_AP:
929 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
930 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
931 break;
932 default:
933 mwifiex_dbg(adapter, ERROR,
934 "%s: changing to %d not supported\n",
935 dev->name, type);
936 return -EOPNOTSUPP;
937 }
938
939 spin_lock_irqsave(&adapter->main_proc_lock, flags);
940 adapter->main_locked = false;
941 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
942
943 spin_lock_bh(&adapter->rx_proc_lock);
944 adapter->rx_locked = false;
945 spin_unlock_bh(&adapter->rx_proc_lock);
946
947 mwifiex_set_mac_address(priv, dev, false, NULL);
948
949 return 0;
950 }
951
952 static bool
is_vif_type_change_allowed(struct mwifiex_adapter * adapter,enum nl80211_iftype old_iftype,enum nl80211_iftype new_iftype)953 is_vif_type_change_allowed(struct mwifiex_adapter *adapter,
954 enum nl80211_iftype old_iftype,
955 enum nl80211_iftype new_iftype)
956 {
957 switch (old_iftype) {
958 case NL80211_IFTYPE_ADHOC:
959 switch (new_iftype) {
960 case NL80211_IFTYPE_STATION:
961 return true;
962 case NL80211_IFTYPE_P2P_CLIENT:
963 case NL80211_IFTYPE_P2P_GO:
964 return adapter->curr_iface_comb.p2p_intf !=
965 adapter->iface_limit.p2p_intf;
966 case NL80211_IFTYPE_AP:
967 return adapter->curr_iface_comb.uap_intf !=
968 adapter->iface_limit.uap_intf;
969 default:
970 return false;
971 }
972
973 case NL80211_IFTYPE_STATION:
974 switch (new_iftype) {
975 case NL80211_IFTYPE_ADHOC:
976 return true;
977 case NL80211_IFTYPE_P2P_CLIENT:
978 case NL80211_IFTYPE_P2P_GO:
979 return adapter->curr_iface_comb.p2p_intf !=
980 adapter->iface_limit.p2p_intf;
981 case NL80211_IFTYPE_AP:
982 return adapter->curr_iface_comb.uap_intf !=
983 adapter->iface_limit.uap_intf;
984 default:
985 return false;
986 }
987
988 case NL80211_IFTYPE_AP:
989 switch (new_iftype) {
990 case NL80211_IFTYPE_ADHOC:
991 case NL80211_IFTYPE_STATION:
992 return adapter->curr_iface_comb.sta_intf !=
993 adapter->iface_limit.sta_intf;
994 case NL80211_IFTYPE_P2P_CLIENT:
995 case NL80211_IFTYPE_P2P_GO:
996 return adapter->curr_iface_comb.p2p_intf !=
997 adapter->iface_limit.p2p_intf;
998 default:
999 return false;
1000 }
1001
1002 case NL80211_IFTYPE_P2P_CLIENT:
1003 switch (new_iftype) {
1004 case NL80211_IFTYPE_ADHOC:
1005 case NL80211_IFTYPE_STATION:
1006 return true;
1007 case NL80211_IFTYPE_P2P_GO:
1008 return true;
1009 case NL80211_IFTYPE_AP:
1010 return adapter->curr_iface_comb.uap_intf !=
1011 adapter->iface_limit.uap_intf;
1012 default:
1013 return false;
1014 }
1015
1016 case NL80211_IFTYPE_P2P_GO:
1017 switch (new_iftype) {
1018 case NL80211_IFTYPE_ADHOC:
1019 case NL80211_IFTYPE_STATION:
1020 return true;
1021 case NL80211_IFTYPE_P2P_CLIENT:
1022 return true;
1023 case NL80211_IFTYPE_AP:
1024 return adapter->curr_iface_comb.uap_intf !=
1025 adapter->iface_limit.uap_intf;
1026 default:
1027 return false;
1028 }
1029
1030 default:
1031 break;
1032 }
1033
1034 return false;
1035 }
1036
1037 static void
update_vif_type_counter(struct mwifiex_adapter * adapter,enum nl80211_iftype iftype,int change)1038 update_vif_type_counter(struct mwifiex_adapter *adapter,
1039 enum nl80211_iftype iftype,
1040 int change)
1041 {
1042 switch (iftype) {
1043 case NL80211_IFTYPE_UNSPECIFIED:
1044 case NL80211_IFTYPE_ADHOC:
1045 case NL80211_IFTYPE_STATION:
1046 adapter->curr_iface_comb.sta_intf += change;
1047 break;
1048 case NL80211_IFTYPE_AP:
1049 adapter->curr_iface_comb.uap_intf += change;
1050 break;
1051 case NL80211_IFTYPE_P2P_CLIENT:
1052 case NL80211_IFTYPE_P2P_GO:
1053 adapter->curr_iface_comb.p2p_intf += change;
1054 break;
1055 default:
1056 mwifiex_dbg(adapter, ERROR,
1057 "%s: Unsupported iftype passed: %d\n",
1058 __func__, iftype);
1059 break;
1060 }
1061 }
1062
1063 static int
mwifiex_change_vif_to_p2p(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,struct vif_params * params)1064 mwifiex_change_vif_to_p2p(struct net_device *dev,
1065 enum nl80211_iftype curr_iftype,
1066 enum nl80211_iftype type,
1067 struct vif_params *params)
1068 {
1069 struct mwifiex_private *priv;
1070 struct mwifiex_adapter *adapter;
1071
1072 priv = mwifiex_netdev_get_priv(dev);
1073
1074 if (!priv)
1075 return -1;
1076
1077 adapter = priv->adapter;
1078
1079 mwifiex_dbg(adapter, INFO,
1080 "%s: changing role to p2p\n", dev->name);
1081
1082 if (mwifiex_deinit_priv_params(priv))
1083 return -1;
1084 if (mwifiex_init_new_priv_params(priv, dev, type))
1085 return -1;
1086
1087 update_vif_type_counter(adapter, curr_iftype, -1);
1088 update_vif_type_counter(adapter, type, +1);
1089 dev->ieee80211_ptr->iftype = type;
1090
1091 switch (type) {
1092 case NL80211_IFTYPE_P2P_CLIENT:
1093 if (mwifiex_cfg80211_init_p2p_client(priv))
1094 return -EFAULT;
1095 break;
1096 case NL80211_IFTYPE_P2P_GO:
1097 if (mwifiex_cfg80211_init_p2p_go(priv))
1098 return -EFAULT;
1099 break;
1100 default:
1101 mwifiex_dbg(adapter, ERROR,
1102 "%s: changing to %d not supported\n",
1103 dev->name, type);
1104 return -EOPNOTSUPP;
1105 }
1106
1107 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1108 HostCmd_ACT_GEN_SET, 0, NULL, true))
1109 return -1;
1110
1111 if (mwifiex_sta_init_cmd(priv, false, false))
1112 return -1;
1113
1114 return 0;
1115 }
1116
1117 static int
mwifiex_change_vif_to_sta_adhoc(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,struct vif_params * params)1118 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1119 enum nl80211_iftype curr_iftype,
1120 enum nl80211_iftype type,
1121 struct vif_params *params)
1122 {
1123 struct mwifiex_private *priv;
1124 struct mwifiex_adapter *adapter;
1125
1126 priv = mwifiex_netdev_get_priv(dev);
1127
1128 if (!priv)
1129 return -1;
1130
1131 adapter = priv->adapter;
1132
1133 if (type == NL80211_IFTYPE_STATION)
1134 mwifiex_dbg(adapter, INFO,
1135 "%s: changing role to station\n", dev->name);
1136 else
1137 mwifiex_dbg(adapter, INFO,
1138 "%s: changing role to adhoc\n", dev->name);
1139
1140 if (mwifiex_deinit_priv_params(priv))
1141 return -1;
1142 if (mwifiex_init_new_priv_params(priv, dev, type))
1143 return -1;
1144
1145 update_vif_type_counter(adapter, curr_iftype, -1);
1146 update_vif_type_counter(adapter, type, +1);
1147 dev->ieee80211_ptr->iftype = type;
1148
1149 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1150 HostCmd_ACT_GEN_SET, 0, NULL, true))
1151 return -1;
1152 if (mwifiex_sta_init_cmd(priv, false, false))
1153 return -1;
1154
1155 return 0;
1156 }
1157
1158 static int
mwifiex_change_vif_to_ap(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,struct vif_params * params)1159 mwifiex_change_vif_to_ap(struct net_device *dev,
1160 enum nl80211_iftype curr_iftype,
1161 enum nl80211_iftype type,
1162 struct vif_params *params)
1163 {
1164 struct mwifiex_private *priv;
1165 struct mwifiex_adapter *adapter;
1166
1167 priv = mwifiex_netdev_get_priv(dev);
1168
1169 if (!priv)
1170 return -1;
1171
1172 adapter = priv->adapter;
1173
1174 mwifiex_dbg(adapter, INFO,
1175 "%s: changing role to AP\n", dev->name);
1176
1177 if (mwifiex_deinit_priv_params(priv))
1178 return -1;
1179 if (mwifiex_init_new_priv_params(priv, dev, type))
1180 return -1;
1181
1182 update_vif_type_counter(adapter, curr_iftype, -1);
1183 update_vif_type_counter(adapter, type, +1);
1184 dev->ieee80211_ptr->iftype = type;
1185
1186 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1187 HostCmd_ACT_GEN_SET, 0, NULL, true))
1188 return -1;
1189 if (mwifiex_sta_init_cmd(priv, false, false))
1190 return -1;
1191
1192 return 0;
1193 }
1194 /*
1195 * CFG802.11 operation handler to change interface type.
1196 */
1197 static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)1198 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1199 struct net_device *dev,
1200 enum nl80211_iftype type,
1201 struct vif_params *params)
1202 {
1203 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1204 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1205
1206 if (priv->scan_request) {
1207 mwifiex_dbg(priv->adapter, ERROR,
1208 "change virtual interface: scan in process\n");
1209 return -EBUSY;
1210 }
1211
1212 if (type == NL80211_IFTYPE_UNSPECIFIED) {
1213 mwifiex_dbg(priv->adapter, INFO,
1214 "%s: no new type specified, keeping old type %d\n",
1215 dev->name, curr_iftype);
1216 return 0;
1217 }
1218
1219 if (curr_iftype == type) {
1220 mwifiex_dbg(priv->adapter, INFO,
1221 "%s: interface already is of type %d\n",
1222 dev->name, curr_iftype);
1223 return 0;
1224 }
1225
1226 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) {
1227 mwifiex_dbg(priv->adapter, ERROR,
1228 "%s: change from type %d to %d is not allowed\n",
1229 dev->name, curr_iftype, type);
1230 return -EOPNOTSUPP;
1231 }
1232
1233 switch (curr_iftype) {
1234 case NL80211_IFTYPE_ADHOC:
1235 switch (type) {
1236 case NL80211_IFTYPE_STATION:
1237 priv->bss_mode = type;
1238 priv->sec_info.authentication_mode =
1239 NL80211_AUTHTYPE_OPEN_SYSTEM;
1240 dev->ieee80211_ptr->iftype = type;
1241 mwifiex_deauthenticate(priv, NULL);
1242 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1243 HostCmd_ACT_GEN_SET, 0, NULL,
1244 true);
1245 case NL80211_IFTYPE_P2P_CLIENT:
1246 case NL80211_IFTYPE_P2P_GO:
1247 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1248 type, params);
1249 case NL80211_IFTYPE_AP:
1250 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1251 params);
1252 default:
1253 goto errnotsupp;
1254 }
1255
1256 case NL80211_IFTYPE_STATION:
1257 switch (type) {
1258 case NL80211_IFTYPE_ADHOC:
1259 priv->bss_mode = type;
1260 priv->sec_info.authentication_mode =
1261 NL80211_AUTHTYPE_OPEN_SYSTEM;
1262 dev->ieee80211_ptr->iftype = type;
1263 mwifiex_deauthenticate(priv, NULL);
1264 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1265 HostCmd_ACT_GEN_SET, 0, NULL,
1266 true);
1267 case NL80211_IFTYPE_P2P_CLIENT:
1268 case NL80211_IFTYPE_P2P_GO:
1269 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1270 type, params);
1271 case NL80211_IFTYPE_AP:
1272 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1273 params);
1274 default:
1275 goto errnotsupp;
1276 }
1277
1278 case NL80211_IFTYPE_AP:
1279 switch (type) {
1280 case NL80211_IFTYPE_ADHOC:
1281 case NL80211_IFTYPE_STATION:
1282 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1283 type, params);
1284 break;
1285 case NL80211_IFTYPE_P2P_CLIENT:
1286 case NL80211_IFTYPE_P2P_GO:
1287 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1288 type, params);
1289 default:
1290 goto errnotsupp;
1291 }
1292
1293 case NL80211_IFTYPE_P2P_CLIENT:
1294 if (mwifiex_cfg80211_deinit_p2p(priv))
1295 return -EFAULT;
1296
1297 switch (type) {
1298 case NL80211_IFTYPE_ADHOC:
1299 case NL80211_IFTYPE_STATION:
1300 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1301 type, params);
1302 case NL80211_IFTYPE_P2P_GO:
1303 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1304 type, params);
1305 case NL80211_IFTYPE_AP:
1306 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1307 params);
1308 default:
1309 goto errnotsupp;
1310 }
1311
1312 case NL80211_IFTYPE_P2P_GO:
1313 if (mwifiex_cfg80211_deinit_p2p(priv))
1314 return -EFAULT;
1315
1316 switch (type) {
1317 case NL80211_IFTYPE_ADHOC:
1318 case NL80211_IFTYPE_STATION:
1319 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1320 type, params);
1321 case NL80211_IFTYPE_P2P_CLIENT:
1322 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1323 type, params);
1324 case NL80211_IFTYPE_AP:
1325 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1326 params);
1327 default:
1328 goto errnotsupp;
1329 }
1330
1331 default:
1332 goto errnotsupp;
1333 }
1334
1335
1336 return 0;
1337
1338 errnotsupp:
1339 mwifiex_dbg(priv->adapter, ERROR,
1340 "unsupported interface type transition: %d to %d\n",
1341 curr_iftype, type);
1342 return -EOPNOTSUPP;
1343 }
1344
1345 static void
mwifiex_parse_htinfo(struct mwifiex_private * priv,u8 rateinfo,u8 htinfo,struct rate_info * rate)1346 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1347 struct rate_info *rate)
1348 {
1349 struct mwifiex_adapter *adapter = priv->adapter;
1350
1351 if (adapter->is_hw_11ac_capable) {
1352 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1353 if (htinfo & BIT(0)) {
1354 /* HT */
1355 rate->mcs = rateinfo;
1356 rate->flags |= RATE_INFO_FLAGS_MCS;
1357 }
1358 if (htinfo & BIT(1)) {
1359 /* VHT */
1360 rate->mcs = rateinfo & 0x0F;
1361 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1362 }
1363
1364 if (htinfo & (BIT(1) | BIT(0))) {
1365 /* HT or VHT */
1366 switch (htinfo & (BIT(3) | BIT(2))) {
1367 case 0:
1368 rate->bw = RATE_INFO_BW_20;
1369 break;
1370 case (BIT(2)):
1371 rate->bw = RATE_INFO_BW_40;
1372 break;
1373 case (BIT(3)):
1374 rate->bw = RATE_INFO_BW_80;
1375 break;
1376 case (BIT(3) | BIT(2)):
1377 rate->bw = RATE_INFO_BW_160;
1378 break;
1379 }
1380
1381 if (htinfo & BIT(4))
1382 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1383
1384 if ((rateinfo >> 4) == 1)
1385 rate->nss = 2;
1386 else
1387 rate->nss = 1;
1388 }
1389 } else {
1390 /*
1391 * Bit 0 in htinfo indicates that current rate is 11n. Valid
1392 * MCS index values for us are 0 to 15.
1393 */
1394 if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1395 rate->mcs = rateinfo;
1396 rate->flags |= RATE_INFO_FLAGS_MCS;
1397 rate->bw = RATE_INFO_BW_20;
1398 if (htinfo & BIT(1))
1399 rate->bw = RATE_INFO_BW_40;
1400 if (htinfo & BIT(2))
1401 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1402 }
1403 }
1404
1405 /* Decode legacy rates for non-HT. */
1406 if (!(htinfo & (BIT(0) | BIT(1)))) {
1407 /* Bitrates in multiples of 100kb/s. */
1408 static const int legacy_rates[] = {
1409 [0] = 10,
1410 [1] = 20,
1411 [2] = 55,
1412 [3] = 110,
1413 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1414 [5] = 60,
1415 [6] = 90,
1416 [7] = 120,
1417 [8] = 180,
1418 [9] = 240,
1419 [10] = 360,
1420 [11] = 480,
1421 [12] = 540,
1422 };
1423 if (rateinfo < ARRAY_SIZE(legacy_rates))
1424 rate->legacy = legacy_rates[rateinfo];
1425 }
1426 }
1427
1428 /*
1429 * This function dumps the station information on a buffer.
1430 *
1431 * The following information are shown -
1432 * - Total bytes transmitted
1433 * - Total bytes received
1434 * - Total packets transmitted
1435 * - Total packets received
1436 * - Signal quality level
1437 * - Transmission rate
1438 */
1439 static int
mwifiex_dump_station_info(struct mwifiex_private * priv,struct mwifiex_sta_node * node,struct station_info * sinfo)1440 mwifiex_dump_station_info(struct mwifiex_private *priv,
1441 struct mwifiex_sta_node *node,
1442 struct station_info *sinfo)
1443 {
1444 u32 rate;
1445
1446 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1447 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1448 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1449 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1450
1451 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1452 if (!node)
1453 return -ENOENT;
1454
1455 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1456 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1457 sinfo->inactive_time =
1458 jiffies_to_msecs(jiffies - node->stats.last_rx);
1459
1460 sinfo->signal = node->stats.rssi;
1461 sinfo->signal_avg = node->stats.rssi;
1462 sinfo->rx_bytes = node->stats.rx_bytes;
1463 sinfo->tx_bytes = node->stats.tx_bytes;
1464 sinfo->rx_packets = node->stats.rx_packets;
1465 sinfo->tx_packets = node->stats.tx_packets;
1466 sinfo->tx_failed = node->stats.tx_failed;
1467
1468 mwifiex_parse_htinfo(priv, priv->tx_rate,
1469 node->stats.last_tx_htinfo,
1470 &sinfo->txrate);
1471 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1472
1473 return 0;
1474 }
1475
1476 /* Get signal information from the firmware */
1477 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1478 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1479 mwifiex_dbg(priv->adapter, ERROR,
1480 "failed to get signal information\n");
1481 return -EFAULT;
1482 }
1483
1484 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1485 mwifiex_dbg(priv->adapter, ERROR,
1486 "getting data rate error\n");
1487 return -EFAULT;
1488 }
1489
1490 /* Get DTIM period information from firmware */
1491 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1492 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1493 &priv->dtim_period, true);
1494
1495 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1496 &sinfo->txrate);
1497
1498 sinfo->signal_avg = priv->bcn_rssi_avg;
1499 sinfo->rx_bytes = priv->stats.rx_bytes;
1500 sinfo->tx_bytes = priv->stats.tx_bytes;
1501 sinfo->rx_packets = priv->stats.rx_packets;
1502 sinfo->tx_packets = priv->stats.tx_packets;
1503 sinfo->signal = priv->bcn_rssi_avg;
1504 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1505 sinfo->txrate.legacy = rate * 5;
1506
1507 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1508 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1509 &sinfo->rxrate);
1510
1511 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1512 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1513 sinfo->bss_param.flags = 0;
1514 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1515 WLAN_CAPABILITY_SHORT_PREAMBLE)
1516 sinfo->bss_param.flags |=
1517 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1518 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1519 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1520 sinfo->bss_param.flags |=
1521 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1522 sinfo->bss_param.dtim_period = priv->dtim_period;
1523 sinfo->bss_param.beacon_interval =
1524 priv->curr_bss_params.bss_descriptor.beacon_period;
1525 }
1526
1527 return 0;
1528 }
1529
1530 /*
1531 * CFG802.11 operation handler to get station information.
1532 *
1533 * This function only works in connected mode, and dumps the
1534 * requested station information, if available.
1535 */
1536 static int
mwifiex_cfg80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)1537 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1538 const u8 *mac, struct station_info *sinfo)
1539 {
1540 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1541
1542 if (!priv->media_connected)
1543 return -ENOENT;
1544 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1545 return -ENOENT;
1546
1547 return mwifiex_dump_station_info(priv, NULL, sinfo);
1548 }
1549
1550 /*
1551 * CFG802.11 operation handler to dump station information.
1552 */
1553 static int
mwifiex_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)1554 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1555 int idx, u8 *mac, struct station_info *sinfo)
1556 {
1557 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1558 struct mwifiex_sta_node *node;
1559 int i;
1560
1561 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1562 priv->media_connected && idx == 0) {
1563 ether_addr_copy(mac, priv->cfg_bssid);
1564 return mwifiex_dump_station_info(priv, NULL, sinfo);
1565 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1566 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1567 HostCmd_ACT_GEN_GET, 0, NULL, true);
1568
1569 i = 0;
1570 list_for_each_entry(node, &priv->sta_list, list) {
1571 if (i++ != idx)
1572 continue;
1573 ether_addr_copy(mac, node->mac_addr);
1574 return mwifiex_dump_station_info(priv, node, sinfo);
1575 }
1576 }
1577
1578 return -ENOENT;
1579 }
1580
1581 static int
mwifiex_cfg80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)1582 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1583 int idx, struct survey_info *survey)
1584 {
1585 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1586 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1587 enum nl80211_band band;
1588
1589 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1590
1591 memset(survey, 0, sizeof(struct survey_info));
1592
1593 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1594 priv->media_connected && idx == 0) {
1595 u8 curr_bss_band = priv->curr_bss_params.band;
1596 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1597
1598 band = mwifiex_band_to_radio_type(curr_bss_band);
1599 survey->channel = ieee80211_get_channel(wiphy,
1600 ieee80211_channel_to_frequency(chan, band));
1601
1602 if (priv->bcn_nf_last) {
1603 survey->filled = SURVEY_INFO_NOISE_DBM;
1604 survey->noise = priv->bcn_nf_last;
1605 }
1606 return 0;
1607 }
1608
1609 if (idx >= priv->adapter->num_in_chan_stats)
1610 return -ENOENT;
1611
1612 if (!pchan_stats[idx].cca_scan_dur)
1613 return 0;
1614
1615 band = pchan_stats[idx].bandcfg;
1616 survey->channel = ieee80211_get_channel(wiphy,
1617 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1618 survey->filled = SURVEY_INFO_NOISE_DBM |
1619 SURVEY_INFO_TIME |
1620 SURVEY_INFO_TIME_BUSY;
1621 survey->noise = pchan_stats[idx].noise;
1622 survey->time = pchan_stats[idx].cca_scan_dur;
1623 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1624
1625 return 0;
1626 }
1627
1628 /* Supported rates to be advertised to the cfg80211 */
1629 static struct ieee80211_rate mwifiex_rates[] = {
1630 {.bitrate = 10, .hw_value = 2, },
1631 {.bitrate = 20, .hw_value = 4, },
1632 {.bitrate = 55, .hw_value = 11, },
1633 {.bitrate = 110, .hw_value = 22, },
1634 {.bitrate = 60, .hw_value = 12, },
1635 {.bitrate = 90, .hw_value = 18, },
1636 {.bitrate = 120, .hw_value = 24, },
1637 {.bitrate = 180, .hw_value = 36, },
1638 {.bitrate = 240, .hw_value = 48, },
1639 {.bitrate = 360, .hw_value = 72, },
1640 {.bitrate = 480, .hw_value = 96, },
1641 {.bitrate = 540, .hw_value = 108, },
1642 };
1643
1644 /* Channel definitions to be advertised to cfg80211 */
1645 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1646 {.center_freq = 2412, .hw_value = 1, },
1647 {.center_freq = 2417, .hw_value = 2, },
1648 {.center_freq = 2422, .hw_value = 3, },
1649 {.center_freq = 2427, .hw_value = 4, },
1650 {.center_freq = 2432, .hw_value = 5, },
1651 {.center_freq = 2437, .hw_value = 6, },
1652 {.center_freq = 2442, .hw_value = 7, },
1653 {.center_freq = 2447, .hw_value = 8, },
1654 {.center_freq = 2452, .hw_value = 9, },
1655 {.center_freq = 2457, .hw_value = 10, },
1656 {.center_freq = 2462, .hw_value = 11, },
1657 {.center_freq = 2467, .hw_value = 12, },
1658 {.center_freq = 2472, .hw_value = 13, },
1659 {.center_freq = 2484, .hw_value = 14, },
1660 };
1661
1662 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1663 .channels = mwifiex_channels_2ghz,
1664 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1665 .bitrates = mwifiex_rates,
1666 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1667 };
1668
1669 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1670 {.center_freq = 5040, .hw_value = 8, },
1671 {.center_freq = 5060, .hw_value = 12, },
1672 {.center_freq = 5080, .hw_value = 16, },
1673 {.center_freq = 5170, .hw_value = 34, },
1674 {.center_freq = 5190, .hw_value = 38, },
1675 {.center_freq = 5210, .hw_value = 42, },
1676 {.center_freq = 5230, .hw_value = 46, },
1677 {.center_freq = 5180, .hw_value = 36, },
1678 {.center_freq = 5200, .hw_value = 40, },
1679 {.center_freq = 5220, .hw_value = 44, },
1680 {.center_freq = 5240, .hw_value = 48, },
1681 {.center_freq = 5260, .hw_value = 52, },
1682 {.center_freq = 5280, .hw_value = 56, },
1683 {.center_freq = 5300, .hw_value = 60, },
1684 {.center_freq = 5320, .hw_value = 64, },
1685 {.center_freq = 5500, .hw_value = 100, },
1686 {.center_freq = 5520, .hw_value = 104, },
1687 {.center_freq = 5540, .hw_value = 108, },
1688 {.center_freq = 5560, .hw_value = 112, },
1689 {.center_freq = 5580, .hw_value = 116, },
1690 {.center_freq = 5600, .hw_value = 120, },
1691 {.center_freq = 5620, .hw_value = 124, },
1692 {.center_freq = 5640, .hw_value = 128, },
1693 {.center_freq = 5660, .hw_value = 132, },
1694 {.center_freq = 5680, .hw_value = 136, },
1695 {.center_freq = 5700, .hw_value = 140, },
1696 {.center_freq = 5745, .hw_value = 149, },
1697 {.center_freq = 5765, .hw_value = 153, },
1698 {.center_freq = 5785, .hw_value = 157, },
1699 {.center_freq = 5805, .hw_value = 161, },
1700 {.center_freq = 5825, .hw_value = 165, },
1701 };
1702
1703 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1704 .channels = mwifiex_channels_5ghz,
1705 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1706 .bitrates = mwifiex_rates + 4,
1707 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1708 };
1709
1710
1711 /* Supported crypto cipher suits to be advertised to cfg80211 */
1712 static const u32 mwifiex_cipher_suites[] = {
1713 WLAN_CIPHER_SUITE_WEP40,
1714 WLAN_CIPHER_SUITE_WEP104,
1715 WLAN_CIPHER_SUITE_TKIP,
1716 WLAN_CIPHER_SUITE_CCMP,
1717 WLAN_CIPHER_SUITE_SMS4,
1718 WLAN_CIPHER_SUITE_AES_CMAC,
1719 };
1720
1721 /* Supported mgmt frame types to be advertised to cfg80211 */
1722 static const struct ieee80211_txrx_stypes
1723 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1724 [NL80211_IFTYPE_STATION] = {
1725 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1726 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1727 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1728 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1729 },
1730 [NL80211_IFTYPE_AP] = {
1731 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1732 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1733 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1734 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1735 },
1736 [NL80211_IFTYPE_P2P_CLIENT] = {
1737 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1738 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1739 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1740 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1741 },
1742 [NL80211_IFTYPE_P2P_GO] = {
1743 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1744 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1745 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1746 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1747 },
1748 };
1749
1750 /*
1751 * CFG802.11 operation handler for setting bit rates.
1752 *
1753 * Function configures data rates to firmware using bitrate mask
1754 * provided by cfg80211.
1755 */
1756 static int
mwifiex_cfg80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * peer,const struct cfg80211_bitrate_mask * mask)1757 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1758 struct net_device *dev,
1759 unsigned int link_id,
1760 const u8 *peer,
1761 const struct cfg80211_bitrate_mask *mask)
1762 {
1763 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1764 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1765 enum nl80211_band band;
1766 struct mwifiex_adapter *adapter = priv->adapter;
1767
1768 if (!priv->media_connected) {
1769 mwifiex_dbg(adapter, ERROR,
1770 "Can not set Tx data rate in disconnected state\n");
1771 return -EINVAL;
1772 }
1773
1774 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1775
1776 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1777
1778 /* Fill HR/DSSS rates. */
1779 if (band == NL80211_BAND_2GHZ)
1780 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1781
1782 /* Fill OFDM rates */
1783 if (band == NL80211_BAND_2GHZ)
1784 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1785 else
1786 bitmap_rates[1] = mask->control[band].legacy;
1787
1788 /* Fill HT MCS rates */
1789 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1790 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1791 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1792
1793 /* Fill VHT MCS rates */
1794 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1795 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1796 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1797 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1798 }
1799
1800 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1801 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1802 }
1803
1804 /*
1805 * CFG802.11 operation handler for connection quality monitoring.
1806 *
1807 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1808 * events to FW.
1809 */
mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)1810 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1811 struct net_device *dev,
1812 s32 rssi_thold, u32 rssi_hyst)
1813 {
1814 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1815 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1816
1817 priv->cqm_rssi_thold = rssi_thold;
1818 priv->cqm_rssi_hyst = rssi_hyst;
1819
1820 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1821 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1822
1823 /* Subscribe/unsubscribe low and high rssi events */
1824 if (rssi_thold && rssi_hyst) {
1825 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1826 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1827 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1828 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1829 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1830 return mwifiex_send_cmd(priv,
1831 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1832 0, 0, &subsc_evt, true);
1833 } else {
1834 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1835 return mwifiex_send_cmd(priv,
1836 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1837 0, 0, &subsc_evt, true);
1838 }
1839
1840 return 0;
1841 }
1842
1843 /* cfg80211 operation handler for change_beacon.
1844 * Function retrieves and sets modified management IEs to FW.
1845 */
mwifiex_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * data)1846 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1847 struct net_device *dev,
1848 struct cfg80211_beacon_data *data)
1849 {
1850 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1851 struct mwifiex_adapter *adapter = priv->adapter;
1852
1853 mwifiex_cancel_scan(adapter);
1854
1855 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1856 mwifiex_dbg(priv->adapter, ERROR,
1857 "%s: bss_type mismatched\n", __func__);
1858 return -EINVAL;
1859 }
1860
1861 if (!priv->bss_started) {
1862 mwifiex_dbg(priv->adapter, ERROR,
1863 "%s: bss not started\n", __func__);
1864 return -EINVAL;
1865 }
1866
1867 if (mwifiex_set_mgmt_ies(priv, data)) {
1868 mwifiex_dbg(priv->adapter, ERROR,
1869 "%s: setting mgmt ies failed\n", __func__);
1870 return -EFAULT;
1871 }
1872
1873 return 0;
1874 }
1875
1876 /* cfg80211 operation handler for del_station.
1877 * Function deauthenticates station which value is provided in mac parameter.
1878 * If mac is NULL/broadcast, all stations in associated station list are
1879 * deauthenticated. If bss is not started or there are no stations in
1880 * associated stations list, no action is taken.
1881 */
1882 static int
mwifiex_cfg80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1883 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1884 struct station_del_parameters *params)
1885 {
1886 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1887 struct mwifiex_sta_node *sta_node;
1888 u8 deauth_mac[ETH_ALEN];
1889
1890 if (!priv->bss_started && priv->wdev.cac_started) {
1891 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1892 mwifiex_abort_cac(priv);
1893 }
1894
1895 if (list_empty(&priv->sta_list) || !priv->bss_started)
1896 return 0;
1897
1898 if (!params->mac || is_broadcast_ether_addr(params->mac))
1899 return 0;
1900
1901 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1902 __func__, params->mac);
1903
1904 eth_zero_addr(deauth_mac);
1905
1906 spin_lock_bh(&priv->sta_list_spinlock);
1907 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1908 if (sta_node)
1909 ether_addr_copy(deauth_mac, params->mac);
1910 spin_unlock_bh(&priv->sta_list_spinlock);
1911
1912 if (is_valid_ether_addr(deauth_mac)) {
1913 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1914 HostCmd_ACT_GEN_SET, 0,
1915 deauth_mac, true))
1916 return -1;
1917 }
1918
1919 return 0;
1920 }
1921
1922 static int
mwifiex_cfg80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)1923 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1924 {
1925 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1926 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1927 MWIFIEX_BSS_ROLE_ANY);
1928 struct mwifiex_ds_ant_cfg ant_cfg;
1929
1930 if (!tx_ant || !rx_ant)
1931 return -EOPNOTSUPP;
1932
1933 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1934 /* Not a MIMO chip. User should provide specific antenna number
1935 * for Tx/Rx path or enable all antennas for diversity
1936 */
1937 if (tx_ant != rx_ant)
1938 return -EOPNOTSUPP;
1939
1940 if ((tx_ant & (tx_ant - 1)) &&
1941 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1942 return -EOPNOTSUPP;
1943
1944 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1945 (priv->adapter->number_of_antenna > 1)) {
1946 tx_ant = RF_ANTENNA_AUTO;
1947 rx_ant = RF_ANTENNA_AUTO;
1948 }
1949 } else {
1950 struct ieee80211_sta_ht_cap *ht_info;
1951 int rx_mcs_supp;
1952 enum nl80211_band band;
1953
1954 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1955 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1956 if (adapter->is_hw_11ac_capable)
1957 adapter->usr_dot_11ac_mcs_support =
1958 MWIFIEX_11AC_MCS_MAP_1X1;
1959 } else {
1960 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1961 if (adapter->is_hw_11ac_capable)
1962 adapter->usr_dot_11ac_mcs_support =
1963 MWIFIEX_11AC_MCS_MAP_2X2;
1964 }
1965
1966 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1967 if (!adapter->wiphy->bands[band])
1968 continue;
1969
1970 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1971 rx_mcs_supp =
1972 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1973 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1974 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1975 }
1976 }
1977
1978 ant_cfg.tx_ant = tx_ant;
1979 ant_cfg.rx_ant = rx_ant;
1980
1981 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1982 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1983 }
1984
1985 static int
mwifiex_cfg80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)1986 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1987 {
1988 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1989 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1990 MWIFIEX_BSS_ROLE_ANY);
1991 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1992 HostCmd_ACT_GEN_GET, 0, NULL, true);
1993
1994 *tx_ant = priv->tx_ant;
1995 *rx_ant = priv->rx_ant;
1996
1997 return 0;
1998 }
1999
2000 /* cfg80211 operation handler for stop ap.
2001 * Function stops BSS running at uAP interface.
2002 */
mwifiex_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)2003 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
2004 unsigned int link_id)
2005 {
2006 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2007
2008 mwifiex_abort_cac(priv);
2009
2010 if (mwifiex_del_mgmt_ies(priv))
2011 mwifiex_dbg(priv->adapter, ERROR,
2012 "Failed to delete mgmt IEs!\n");
2013
2014 priv->ap_11n_enabled = 0;
2015 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
2016
2017 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
2018 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2019 mwifiex_dbg(priv->adapter, ERROR,
2020 "Failed to stop the BSS\n");
2021 return -1;
2022 }
2023
2024 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
2025 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2026 mwifiex_dbg(priv->adapter, ERROR,
2027 "Failed to reset BSS\n");
2028 return -1;
2029 }
2030
2031 if (netif_carrier_ok(priv->netdev))
2032 netif_carrier_off(priv->netdev);
2033 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2034
2035 return 0;
2036 }
2037
2038 /* cfg80211 operation handler for start_ap.
2039 * Function sets beacon period, DTIM period, SSID and security into
2040 * AP config structure.
2041 * AP is configured with these settings and BSS is started.
2042 */
mwifiex_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)2043 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
2044 struct net_device *dev,
2045 struct cfg80211_ap_settings *params)
2046 {
2047 struct mwifiex_uap_bss_param *bss_cfg;
2048 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2049
2050 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
2051 return -1;
2052
2053 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
2054 if (!bss_cfg)
2055 return -ENOMEM;
2056
2057 mwifiex_set_sys_config_invalid_data(bss_cfg);
2058
2059 if (params->beacon_interval)
2060 bss_cfg->beacon_period = params->beacon_interval;
2061 if (params->dtim_period)
2062 bss_cfg->dtim_period = params->dtim_period;
2063
2064 if (params->ssid && params->ssid_len) {
2065 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2066 bss_cfg->ssid.ssid_len = params->ssid_len;
2067 }
2068 if (params->inactivity_timeout > 0) {
2069 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2070 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2071 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2072 }
2073
2074 switch (params->hidden_ssid) {
2075 case NL80211_HIDDEN_SSID_NOT_IN_USE:
2076 bss_cfg->bcast_ssid_ctl = 1;
2077 break;
2078 case NL80211_HIDDEN_SSID_ZERO_LEN:
2079 bss_cfg->bcast_ssid_ctl = 0;
2080 break;
2081 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2082 bss_cfg->bcast_ssid_ctl = 2;
2083 break;
2084 default:
2085 kfree(bss_cfg);
2086 return -EINVAL;
2087 }
2088
2089 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2090 mwifiex_set_uap_rates(bss_cfg, params);
2091
2092 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2093 mwifiex_dbg(priv->adapter, ERROR,
2094 "Failed to parse security parameters!\n");
2095 goto out;
2096 }
2097
2098 mwifiex_set_ht_params(priv, bss_cfg, params);
2099
2100 if (priv->adapter->is_hw_11ac_capable) {
2101 mwifiex_set_vht_params(priv, bss_cfg, params);
2102 mwifiex_set_vht_width(priv, params->chandef.width,
2103 priv->ap_11ac_enabled);
2104 }
2105
2106 if (priv->ap_11ac_enabled)
2107 mwifiex_set_11ac_ba_params(priv);
2108 else
2109 mwifiex_set_ba_params(priv);
2110
2111 mwifiex_set_wmm_params(priv, bss_cfg, params);
2112
2113 if (mwifiex_is_11h_active(priv))
2114 mwifiex_set_tpc_params(priv, bss_cfg, params);
2115
2116 if (mwifiex_is_11h_active(priv) &&
2117 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef,
2118 priv->bss_mode)) {
2119 mwifiex_dbg(priv->adapter, INFO,
2120 "Disable 11h extensions in FW\n");
2121 if (mwifiex_11h_activate(priv, false)) {
2122 mwifiex_dbg(priv->adapter, ERROR,
2123 "Failed to disable 11h extensions!!");
2124 goto out;
2125 }
2126 priv->state_11h.is_11h_active = false;
2127 }
2128
2129 mwifiex_config_uap_11d(priv, ¶ms->beacon);
2130
2131 if (mwifiex_config_start_uap(priv, bss_cfg)) {
2132 mwifiex_dbg(priv->adapter, ERROR,
2133 "Failed to start AP\n");
2134 goto out;
2135 }
2136
2137 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon))
2138 goto out;
2139
2140 if (!netif_carrier_ok(priv->netdev))
2141 netif_carrier_on(priv->netdev);
2142 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2143
2144 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2145 kfree(bss_cfg);
2146 return 0;
2147
2148 out:
2149 kfree(bss_cfg);
2150 return -1;
2151 }
2152
2153 /*
2154 * CFG802.11 operation handler for disconnection request.
2155 *
2156 * This function does not work when there is already a disconnection
2157 * procedure going on.
2158 */
2159 static int
mwifiex_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)2160 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2161 u16 reason_code)
2162 {
2163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2164
2165 if (!mwifiex_stop_bg_scan(priv))
2166 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2167
2168 if (mwifiex_deauthenticate(priv, NULL))
2169 return -EFAULT;
2170
2171 eth_zero_addr(priv->cfg_bssid);
2172 priv->hs2_enabled = false;
2173
2174 return 0;
2175 }
2176
2177 /*
2178 * This function informs the CFG802.11 subsystem of a new IBSS.
2179 *
2180 * The following information are sent to the CFG802.11 subsystem
2181 * to register the new IBSS. If we do not register the new IBSS,
2182 * a kernel panic will result.
2183 * - SSID
2184 * - SSID length
2185 * - BSSID
2186 * - Channel
2187 */
mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private * priv)2188 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2189 {
2190 struct ieee80211_channel *chan;
2191 struct mwifiex_bss_info bss_info;
2192 struct cfg80211_bss *bss;
2193 int ie_len;
2194 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2195 enum nl80211_band band;
2196
2197 if (mwifiex_get_bss_info(priv, &bss_info))
2198 return -1;
2199
2200 ie_buf[0] = WLAN_EID_SSID;
2201 ie_buf[1] = bss_info.ssid.ssid_len;
2202
2203 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2204 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2205 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2206
2207 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2208 chan = ieee80211_get_channel(priv->wdev.wiphy,
2209 ieee80211_channel_to_frequency(bss_info.bss_chan,
2210 band));
2211
2212 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2213 CFG80211_BSS_FTYPE_UNKNOWN,
2214 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2215 0, ie_buf, ie_len, 0, GFP_KERNEL);
2216 if (bss) {
2217 cfg80211_put_bss(priv->wdev.wiphy, bss);
2218 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2219 }
2220
2221 return 0;
2222 }
2223
2224 /*
2225 * This function connects with a BSS.
2226 *
2227 * This function handles both Infra and Ad-Hoc modes. It also performs
2228 * validity checking on the provided parameters, disconnects from the
2229 * current BSS (if any), sets up the association/scan parameters,
2230 * including security settings, and performs specific SSID scan before
2231 * trying to connect.
2232 *
2233 * For Infra mode, the function returns failure if the specified SSID
2234 * is not found in scan table. However, for Ad-Hoc mode, it can create
2235 * the IBSS if it does not exist. On successful completion in either case,
2236 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2237 */
2238 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,struct cfg80211_bss ** sel_bss)2239 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2240 const u8 *ssid, const u8 *bssid, int mode,
2241 struct ieee80211_channel *channel,
2242 struct cfg80211_connect_params *sme, bool privacy,
2243 struct cfg80211_bss **sel_bss)
2244 {
2245 struct cfg80211_ssid req_ssid;
2246 int ret, auth_type = 0;
2247 struct cfg80211_bss *bss = NULL;
2248 u8 is_scanning_required = 0;
2249
2250 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2251
2252 req_ssid.ssid_len = ssid_len;
2253 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2254 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2255 return -EINVAL;
2256 }
2257
2258 memcpy(req_ssid.ssid, ssid, ssid_len);
2259 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2260 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2261 return -EINVAL;
2262 }
2263
2264 /* As this is new association, clear locally stored
2265 * keys and security related flags */
2266 priv->sec_info.wpa_enabled = false;
2267 priv->sec_info.wpa2_enabled = false;
2268 priv->wep_key_curr_index = 0;
2269 priv->sec_info.encryption_mode = 0;
2270 priv->sec_info.is_authtype_auto = 0;
2271 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2272
2273 if (mode == NL80211_IFTYPE_ADHOC) {
2274 u16 enable = true;
2275
2276 /* set ibss coalescing_status */
2277 ret = mwifiex_send_cmd(
2278 priv,
2279 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2280 HostCmd_ACT_GEN_SET, 0, &enable, true);
2281 if (ret)
2282 return ret;
2283
2284 /* "privacy" is set only for ad-hoc mode */
2285 if (privacy) {
2286 /*
2287 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2288 * the firmware can find a matching network from the
2289 * scan. The cfg80211 does not give us the encryption
2290 * mode at this stage so just setting it to WEP here.
2291 */
2292 priv->sec_info.encryption_mode =
2293 WLAN_CIPHER_SUITE_WEP104;
2294 priv->sec_info.authentication_mode =
2295 NL80211_AUTHTYPE_OPEN_SYSTEM;
2296 }
2297
2298 goto done;
2299 }
2300
2301 /* Now handle infra mode. "sme" is valid for infra mode only */
2302 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2303 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2304 priv->sec_info.is_authtype_auto = 1;
2305 } else {
2306 auth_type = sme->auth_type;
2307 }
2308
2309 if (sme->crypto.n_ciphers_pairwise) {
2310 priv->sec_info.encryption_mode =
2311 sme->crypto.ciphers_pairwise[0];
2312 priv->sec_info.authentication_mode = auth_type;
2313 }
2314
2315 if (sme->crypto.cipher_group) {
2316 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2317 priv->sec_info.authentication_mode = auth_type;
2318 }
2319 if (sme->ie)
2320 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2321
2322 if (sme->key) {
2323 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2324 mwifiex_dbg(priv->adapter, INFO,
2325 "info: setting wep encryption\t"
2326 "with key len %d\n", sme->key_len);
2327 priv->wep_key_curr_index = sme->key_idx;
2328 ret = mwifiex_set_encode(priv, NULL, sme->key,
2329 sme->key_len, sme->key_idx,
2330 NULL, 0);
2331 }
2332 }
2333 done:
2334 /*
2335 * Scan entries are valid for some time (15 sec). So we can save one
2336 * active scan time if we just try cfg80211_get_bss first. If it fails
2337 * then request scan and cfg80211_get_bss() again for final output.
2338 */
2339 while (1) {
2340 if (is_scanning_required) {
2341 /* Do specific SSID scanning */
2342 if (mwifiex_request_scan(priv, &req_ssid)) {
2343 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2344 return -EFAULT;
2345 }
2346 }
2347
2348 /* Find the BSS we want using available scan results */
2349 if (mode == NL80211_IFTYPE_ADHOC)
2350 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2351 bssid, ssid, ssid_len,
2352 IEEE80211_BSS_TYPE_IBSS,
2353 IEEE80211_PRIVACY_ANY);
2354 else
2355 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2356 bssid, ssid, ssid_len,
2357 IEEE80211_BSS_TYPE_ESS,
2358 IEEE80211_PRIVACY_ANY);
2359
2360 if (!bss) {
2361 if (is_scanning_required) {
2362 mwifiex_dbg(priv->adapter, MSG,
2363 "assoc: requested bss not found in scan results\n");
2364 break;
2365 }
2366 is_scanning_required = 1;
2367 } else {
2368 mwifiex_dbg(priv->adapter, MSG,
2369 "info: trying to associate to bssid %pM\n",
2370 bss->bssid);
2371 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2372 break;
2373 }
2374 }
2375
2376 if (bss)
2377 cfg80211_ref_bss(priv->adapter->wiphy, bss);
2378
2379 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2380 if (ret)
2381 goto cleanup;
2382
2383 if (mode == NL80211_IFTYPE_ADHOC) {
2384 /* Inform the BSS information to kernel, otherwise
2385 * kernel will give a panic after successful assoc */
2386 if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2387 ret = -EFAULT;
2388 goto cleanup;
2389 }
2390 }
2391
2392 /* Pass the selected BSS entry to caller. */
2393 if (sel_bss) {
2394 *sel_bss = bss;
2395 bss = NULL;
2396 }
2397
2398 cleanup:
2399 if (bss)
2400 cfg80211_put_bss(priv->adapter->wiphy, bss);
2401 return ret;
2402 }
2403
2404 /*
2405 * CFG802.11 operation handler for association request.
2406 *
2407 * This function does not work when the current mode is set to Ad-Hoc, or
2408 * when there is already an association procedure going on. The given BSS
2409 * information is used to associate.
2410 */
2411 static int
mwifiex_cfg80211_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)2412 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2413 struct cfg80211_connect_params *sme)
2414 {
2415 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2416 struct mwifiex_adapter *adapter = priv->adapter;
2417 struct cfg80211_bss *bss = NULL;
2418 int ret;
2419
2420 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2421 mwifiex_dbg(adapter, ERROR,
2422 "%s: reject infra assoc request in non-STA role\n",
2423 dev->name);
2424 return -EINVAL;
2425 }
2426
2427 if (priv->wdev.connected) {
2428 mwifiex_dbg(adapter, ERROR,
2429 "%s: already connected\n", dev->name);
2430 return -EALREADY;
2431 }
2432
2433 if (priv->scan_block)
2434 priv->scan_block = false;
2435
2436 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2437 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2438 mwifiex_dbg(adapter, ERROR,
2439 "%s: Ignore connection.\t"
2440 "Card removed or FW in bad state\n",
2441 dev->name);
2442 return -EFAULT;
2443 }
2444
2445 mwifiex_dbg(adapter, INFO,
2446 "info: Trying to associate to bssid %pM\n", sme->bssid);
2447
2448 if (!mwifiex_stop_bg_scan(priv))
2449 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2450
2451 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2452 priv->bss_mode, sme->channel, sme, 0,
2453 &bss);
2454 if (!ret) {
2455 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2456 0, NULL, 0, WLAN_STATUS_SUCCESS,
2457 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2458 mwifiex_dbg(priv->adapter, MSG,
2459 "info: associated to bssid %pM successfully\n",
2460 priv->cfg_bssid);
2461 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2462 priv->adapter->auto_tdls &&
2463 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2464 mwifiex_setup_auto_tdls_timer(priv);
2465 } else {
2466 mwifiex_dbg(priv->adapter, ERROR,
2467 "info: association to bssid %pM failed\n",
2468 priv->cfg_bssid);
2469 eth_zero_addr(priv->cfg_bssid);
2470
2471 if (ret > 0)
2472 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2473 NULL, 0, NULL, 0, ret,
2474 GFP_KERNEL);
2475 else
2476 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2477 NULL, 0, NULL, 0,
2478 WLAN_STATUS_UNSPECIFIED_FAILURE,
2479 GFP_KERNEL);
2480 }
2481
2482 return 0;
2483 }
2484
2485 /*
2486 * This function sets following parameters for ibss network.
2487 * - channel
2488 * - start band
2489 * - 11n flag
2490 * - secondary channel offset
2491 */
mwifiex_set_ibss_params(struct mwifiex_private * priv,struct cfg80211_ibss_params * params)2492 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2493 struct cfg80211_ibss_params *params)
2494 {
2495 struct mwifiex_adapter *adapter = priv->adapter;
2496 int index = 0, i;
2497 u8 config_bands = 0;
2498
2499 if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2500 if (!params->basic_rates) {
2501 config_bands = BAND_B | BAND_G;
2502 } else {
2503 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2504 /*
2505 * Rates below 6 Mbps in the table are CCK
2506 * rates; 802.11b and from 6 they are OFDM;
2507 * 802.11G
2508 */
2509 if (mwifiex_rates[i].bitrate == 60) {
2510 index = 1 << i;
2511 break;
2512 }
2513 }
2514
2515 if (params->basic_rates < index) {
2516 config_bands = BAND_B;
2517 } else {
2518 config_bands = BAND_G;
2519 if (params->basic_rates % index)
2520 config_bands |= BAND_B;
2521 }
2522 }
2523
2524 if (cfg80211_get_chandef_type(¶ms->chandef) !=
2525 NL80211_CHAN_NO_HT)
2526 config_bands |= BAND_G | BAND_GN;
2527 } else {
2528 if (cfg80211_get_chandef_type(¶ms->chandef) ==
2529 NL80211_CHAN_NO_HT)
2530 config_bands = BAND_A;
2531 else
2532 config_bands = BAND_AN | BAND_A;
2533 }
2534
2535 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2536 adapter->config_bands = config_bands;
2537 adapter->adhoc_start_band = config_bands;
2538
2539 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2540 adapter->adhoc_11n_enabled = true;
2541 else
2542 adapter->adhoc_11n_enabled = false;
2543 }
2544
2545 adapter->sec_chan_offset =
2546 mwifiex_chan_type_to_sec_chan_offset(
2547 cfg80211_get_chandef_type(¶ms->chandef));
2548 priv->adhoc_channel = ieee80211_frequency_to_channel(
2549 params->chandef.chan->center_freq);
2550
2551 mwifiex_dbg(adapter, INFO,
2552 "info: set ibss band %d, chan %d, chan offset %d\n",
2553 config_bands, priv->adhoc_channel,
2554 adapter->sec_chan_offset);
2555
2556 return 0;
2557 }
2558
2559 /*
2560 * CFG802.11 operation handler to join an IBSS.
2561 *
2562 * This function does not work in any mode other than Ad-Hoc, or if
2563 * a join operation is already in progress.
2564 */
2565 static int
mwifiex_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2566 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2567 struct cfg80211_ibss_params *params)
2568 {
2569 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2570 int ret = 0;
2571
2572 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2573 mwifiex_dbg(priv->adapter, ERROR,
2574 "request to join ibss received\t"
2575 "when station is not in ibss mode\n");
2576 goto done;
2577 }
2578
2579 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2580 params->bssid);
2581
2582 mwifiex_set_ibss_params(priv, params);
2583
2584 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2585 params->bssid, priv->bss_mode,
2586 params->chandef.chan, NULL,
2587 params->privacy, NULL);
2588 done:
2589 if (!ret) {
2590 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2591 params->chandef.chan, GFP_KERNEL);
2592 mwifiex_dbg(priv->adapter, MSG,
2593 "info: joined/created adhoc network with bssid\t"
2594 "%pM successfully\n", priv->cfg_bssid);
2595 } else {
2596 mwifiex_dbg(priv->adapter, ERROR,
2597 "info: failed creating/joining adhoc network\n");
2598 }
2599
2600 return ret;
2601 }
2602
2603 /*
2604 * CFG802.11 operation handler to leave an IBSS.
2605 *
2606 * This function does not work if a leave operation is
2607 * already in progress.
2608 */
2609 static int
mwifiex_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2610 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2611 {
2612 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2613
2614 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2615 priv->cfg_bssid);
2616 if (mwifiex_deauthenticate(priv, NULL))
2617 return -EFAULT;
2618
2619 eth_zero_addr(priv->cfg_bssid);
2620
2621 return 0;
2622 }
2623
2624 /*
2625 * CFG802.11 operation handler for scan request.
2626 *
2627 * This function issues a scan request to the firmware based upon
2628 * the user specified scan configuration. On successful completion,
2629 * it also informs the results.
2630 */
2631 static int
mwifiex_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)2632 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2633 struct cfg80211_scan_request *request)
2634 {
2635 struct net_device *dev = request->wdev->netdev;
2636 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2637 int i, offset, ret;
2638 struct ieee80211_channel *chan;
2639 struct ieee_types_header *ie;
2640 struct mwifiex_user_scan_cfg *user_scan_cfg;
2641 u8 mac_addr[ETH_ALEN];
2642
2643 mwifiex_dbg(priv->adapter, CMD,
2644 "info: received scan request on %s\n", dev->name);
2645
2646 /* Block scan request if scan operation or scan cleanup when interface
2647 * is disabled is in process
2648 */
2649 if (priv->scan_request || priv->scan_aborting) {
2650 mwifiex_dbg(priv->adapter, WARN,
2651 "cmd: Scan already in process..\n");
2652 return -EBUSY;
2653 }
2654
2655 if (!priv->wdev.connected && priv->scan_block)
2656 priv->scan_block = false;
2657
2658 if (!mwifiex_stop_bg_scan(priv))
2659 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2660
2661 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2662 if (!user_scan_cfg)
2663 return -ENOMEM;
2664
2665 priv->scan_request = request;
2666
2667 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2668 get_random_mask_addr(mac_addr, request->mac_addr,
2669 request->mac_addr_mask);
2670 ether_addr_copy(request->mac_addr, mac_addr);
2671 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2672 }
2673
2674 user_scan_cfg->num_ssids = request->n_ssids;
2675 user_scan_cfg->ssid_list = request->ssids;
2676
2677 if (request->ie && request->ie_len) {
2678 offset = 0;
2679 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2680 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2681 continue;
2682 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2683 ie = (struct ieee_types_header *)(request->ie + offset);
2684 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2685 offset += sizeof(*ie) + ie->len;
2686
2687 if (offset >= request->ie_len)
2688 break;
2689 }
2690 }
2691
2692 for (i = 0; i < min_t(u32, request->n_channels,
2693 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2694 chan = request->channels[i];
2695 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2696 user_scan_cfg->chan_list[i].radio_type = chan->band;
2697
2698 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2699 user_scan_cfg->chan_list[i].scan_type =
2700 MWIFIEX_SCAN_TYPE_PASSIVE;
2701 else
2702 user_scan_cfg->chan_list[i].scan_type =
2703 MWIFIEX_SCAN_TYPE_ACTIVE;
2704
2705 user_scan_cfg->chan_list[i].scan_time = 0;
2706 }
2707
2708 if (priv->adapter->scan_chan_gap_enabled &&
2709 mwifiex_is_any_intf_active(priv))
2710 user_scan_cfg->scan_chan_gap =
2711 priv->adapter->scan_chan_gap_time;
2712
2713 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2714 kfree(user_scan_cfg);
2715 if (ret) {
2716 mwifiex_dbg(priv->adapter, ERROR,
2717 "scan failed: %d\n", ret);
2718 priv->scan_aborting = false;
2719 priv->scan_request = NULL;
2720 return ret;
2721 }
2722
2723 if (request->ie && request->ie_len) {
2724 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2725 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2726 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2727 memset(&priv->vs_ie[i].ie, 0,
2728 MWIFIEX_MAX_VSIE_LEN);
2729 }
2730 }
2731 }
2732 return 0;
2733 }
2734
2735 /* CFG802.11 operation handler for sched_scan_start.
2736 *
2737 * This function issues a bgscan config request to the firmware based upon
2738 * the user specified sched_scan configuration. On successful completion,
2739 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2740 * query command to get sched_scan results from firmware.
2741 */
2742 static int
mwifiex_cfg80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * request)2743 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2744 struct net_device *dev,
2745 struct cfg80211_sched_scan_request *request)
2746 {
2747 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2748 int i, offset;
2749 struct ieee80211_channel *chan;
2750 struct mwifiex_bg_scan_cfg *bgscan_cfg;
2751 struct ieee_types_header *ie;
2752
2753 if (!request || (!request->n_ssids && !request->n_match_sets)) {
2754 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2755 __func__);
2756 return -EINVAL;
2757 }
2758
2759 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2760 request->n_ssids, request->n_match_sets);
2761 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2762 request->n_channels, request->scan_plans->interval,
2763 (int)request->ie_len);
2764
2765 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2766 if (!bgscan_cfg)
2767 return -ENOMEM;
2768
2769 if (priv->scan_request || priv->scan_aborting)
2770 bgscan_cfg->start_later = true;
2771
2772 bgscan_cfg->num_ssids = request->n_match_sets;
2773 bgscan_cfg->ssid_list = request->match_sets;
2774
2775 if (request->ie && request->ie_len) {
2776 offset = 0;
2777 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2778 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2779 continue;
2780 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2781 ie = (struct ieee_types_header *)(request->ie + offset);
2782 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2783 offset += sizeof(*ie) + ie->len;
2784
2785 if (offset >= request->ie_len)
2786 break;
2787 }
2788 }
2789
2790 for (i = 0; i < min_t(u32, request->n_channels,
2791 MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2792 chan = request->channels[i];
2793 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2794 bgscan_cfg->chan_list[i].radio_type = chan->band;
2795
2796 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2797 bgscan_cfg->chan_list[i].scan_type =
2798 MWIFIEX_SCAN_TYPE_PASSIVE;
2799 else
2800 bgscan_cfg->chan_list[i].scan_type =
2801 MWIFIEX_SCAN_TYPE_ACTIVE;
2802
2803 bgscan_cfg->chan_list[i].scan_time = 0;
2804 }
2805
2806 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2807 MWIFIEX_BG_SCAN_CHAN_MAX);
2808
2809 /* Use at least 15 second for per scan cycle */
2810 bgscan_cfg->scan_interval = (request->scan_plans->interval >
2811 MWIFIEX_BGSCAN_INTERVAL) ?
2812 request->scan_plans->interval :
2813 MWIFIEX_BGSCAN_INTERVAL;
2814
2815 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2816 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2817 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2818 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2819 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2820 bgscan_cfg->enable = true;
2821 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2822 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2823 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2824 }
2825
2826 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2827 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2828 kfree(bgscan_cfg);
2829 return -EFAULT;
2830 }
2831
2832 priv->sched_scanning = true;
2833
2834 kfree(bgscan_cfg);
2835 return 0;
2836 }
2837
2838 /* CFG802.11 operation handler for sched_scan_stop.
2839 *
2840 * This function issues a bgscan config command to disable
2841 * previous bgscan configuration in the firmware
2842 */
mwifiex_cfg80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2843 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2844 struct net_device *dev, u64 reqid)
2845 {
2846 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2847
2848 wiphy_info(wiphy, "sched scan stop!");
2849 mwifiex_stop_bg_scan(priv);
2850
2851 return 0;
2852 }
2853
mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap * vht_info,struct mwifiex_private * priv)2854 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2855 struct mwifiex_private *priv)
2856 {
2857 struct mwifiex_adapter *adapter = priv->adapter;
2858
2859 vht_info->vht_supported = true;
2860
2861 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2862 /* Update MCS support for VHT */
2863 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2864 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2865 vht_info->vht_mcs.rx_highest = 0;
2866 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2867 adapter->hw_dot_11ac_mcs_support >> 16);
2868 vht_info->vht_mcs.tx_highest = 0;
2869 }
2870
2871 /*
2872 * This function sets up the CFG802.11 specific HT capability fields
2873 * with default values.
2874 *
2875 * The following default values are set -
2876 * - HT Supported = True
2877 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2878 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2879 * - HT Capabilities supported by firmware
2880 * - MCS information, Rx mask = 0xff
2881 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2882 */
2883 static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap * ht_info,struct mwifiex_private * priv)2884 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2885 struct mwifiex_private *priv)
2886 {
2887 int rx_mcs_supp;
2888 struct ieee80211_mcs_info mcs_set;
2889 u8 *mcs = (u8 *)&mcs_set;
2890 struct mwifiex_adapter *adapter = priv->adapter;
2891
2892 ht_info->ht_supported = true;
2893 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2894 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2895
2896 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2897
2898 /* Fill HT capability information */
2899 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2900 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2901 else
2902 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2903
2904 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2905 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2906 else
2907 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2908
2909 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2910 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2911 else
2912 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2913
2914 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2915 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2916 else
2917 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2918
2919 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2920 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2921 else
2922 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2923
2924 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2925 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2926 else
2927 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2928
2929 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2930 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2931 else
2932 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2933
2934 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2935 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2936 else
2937 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2938
2939 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2940 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2941
2942 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2943 /* Set MCS for 1x1/2x2 */
2944 memset(mcs, 0xff, rx_mcs_supp);
2945 /* Clear all the other values */
2946 memset(&mcs[rx_mcs_supp], 0,
2947 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2948 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2949 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2950 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2951 SETHT_MCS32(mcs_set.rx_mask);
2952
2953 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2954
2955 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2956 }
2957
2958 /*
2959 * create a new virtual interface with the given name and name assign type
2960 */
mwifiex_add_virtual_intf(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)2961 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2962 const char *name,
2963 unsigned char name_assign_type,
2964 enum nl80211_iftype type,
2965 struct vif_params *params)
2966 {
2967 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2968 struct mwifiex_private *priv;
2969 struct net_device *dev;
2970 void *mdev_priv;
2971 int ret;
2972
2973 if (!adapter)
2974 return ERR_PTR(-EFAULT);
2975
2976 switch (type) {
2977 case NL80211_IFTYPE_UNSPECIFIED:
2978 case NL80211_IFTYPE_STATION:
2979 case NL80211_IFTYPE_ADHOC:
2980 if (adapter->curr_iface_comb.sta_intf ==
2981 adapter->iface_limit.sta_intf) {
2982 mwifiex_dbg(adapter, ERROR,
2983 "cannot create multiple sta/adhoc ifaces\n");
2984 return ERR_PTR(-EINVAL);
2985 }
2986
2987 priv = mwifiex_get_unused_priv_by_bss_type(
2988 adapter, MWIFIEX_BSS_TYPE_STA);
2989 if (!priv) {
2990 mwifiex_dbg(adapter, ERROR,
2991 "could not get free private struct\n");
2992 return ERR_PTR(-EFAULT);
2993 }
2994
2995 priv->wdev.wiphy = wiphy;
2996 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2997
2998 if (type == NL80211_IFTYPE_UNSPECIFIED)
2999 priv->bss_mode = NL80211_IFTYPE_STATION;
3000 else
3001 priv->bss_mode = type;
3002
3003 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
3004 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3005 priv->bss_priority = 0;
3006 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3007
3008 break;
3009 case NL80211_IFTYPE_AP:
3010 if (adapter->curr_iface_comb.uap_intf ==
3011 adapter->iface_limit.uap_intf) {
3012 mwifiex_dbg(adapter, ERROR,
3013 "cannot create multiple AP ifaces\n");
3014 return ERR_PTR(-EINVAL);
3015 }
3016
3017 priv = mwifiex_get_unused_priv_by_bss_type(
3018 adapter, MWIFIEX_BSS_TYPE_UAP);
3019 if (!priv) {
3020 mwifiex_dbg(adapter, ERROR,
3021 "could not get free private struct\n");
3022 return ERR_PTR(-EFAULT);
3023 }
3024
3025 priv->wdev.wiphy = wiphy;
3026 priv->wdev.iftype = NL80211_IFTYPE_AP;
3027
3028 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
3029 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3030 priv->bss_priority = 0;
3031 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
3032 priv->bss_started = 0;
3033 priv->bss_mode = type;
3034
3035 break;
3036 case NL80211_IFTYPE_P2P_CLIENT:
3037 if (adapter->curr_iface_comb.p2p_intf ==
3038 adapter->iface_limit.p2p_intf) {
3039 mwifiex_dbg(adapter, ERROR,
3040 "cannot create multiple P2P ifaces\n");
3041 return ERR_PTR(-EINVAL);
3042 }
3043
3044 priv = mwifiex_get_unused_priv_by_bss_type(
3045 adapter, MWIFIEX_BSS_TYPE_P2P);
3046 if (!priv) {
3047 mwifiex_dbg(adapter, ERROR,
3048 "could not get free private struct\n");
3049 return ERR_PTR(-EFAULT);
3050 }
3051
3052 priv->wdev.wiphy = wiphy;
3053 /* At start-up, wpa_supplicant tries to change the interface
3054 * to NL80211_IFTYPE_STATION if it is not managed mode.
3055 */
3056 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
3057 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
3058
3059 /* Setting bss_type to P2P tells firmware that this interface
3060 * is receiving P2P peers found during find phase and doing
3061 * action frame handshake.
3062 */
3063 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
3064
3065 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3066 priv->bss_priority = 0;
3067 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3068 priv->bss_started = 0;
3069
3070 if (mwifiex_cfg80211_init_p2p_client(priv)) {
3071 memset(&priv->wdev, 0, sizeof(priv->wdev));
3072 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3073 return ERR_PTR(-EFAULT);
3074 }
3075
3076 break;
3077 default:
3078 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3079 return ERR_PTR(-EINVAL);
3080 }
3081
3082 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3083 name_assign_type, ether_setup,
3084 IEEE80211_NUM_ACS, 1);
3085 if (!dev) {
3086 mwifiex_dbg(adapter, ERROR,
3087 "no memory available for netdevice\n");
3088 ret = -ENOMEM;
3089 goto err_alloc_netdev;
3090 }
3091
3092 mwifiex_init_priv_params(priv, dev);
3093
3094 priv->netdev = dev;
3095
3096 if (!adapter->mfg_mode) {
3097 mwifiex_set_mac_address(priv, dev, false, NULL);
3098
3099 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3100 HostCmd_ACT_GEN_SET, 0, NULL, true);
3101 if (ret)
3102 goto err_set_bss_mode;
3103
3104 ret = mwifiex_sta_init_cmd(priv, false, false);
3105 if (ret)
3106 goto err_sta_init;
3107 }
3108
3109 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3110 if (adapter->is_hw_11ac_capable)
3111 mwifiex_setup_vht_caps(
3112 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3113
3114 if (adapter->config_bands & BAND_A)
3115 mwifiex_setup_ht_caps(
3116 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3117
3118 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3119 mwifiex_setup_vht_caps(
3120 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3121
3122 dev_net_set(dev, wiphy_net(wiphy));
3123 dev->ieee80211_ptr = &priv->wdev;
3124 dev->ieee80211_ptr->iftype = priv->bss_mode;
3125 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3126
3127 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3128 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3129 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3130 dev->ethtool_ops = &mwifiex_ethtool_ops;
3131
3132 mdev_priv = netdev_priv(dev);
3133 *((unsigned long *) mdev_priv) = (unsigned long) priv;
3134
3135 SET_NETDEV_DEV(dev, adapter->dev);
3136
3137 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3138 WQ_HIGHPRI |
3139 WQ_MEM_RECLAIM |
3140 WQ_UNBOUND, 1, name);
3141 if (!priv->dfs_cac_workqueue) {
3142 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3143 ret = -ENOMEM;
3144 goto err_alloc_cac;
3145 }
3146
3147 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3148
3149 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3150 WQ_HIGHPRI | WQ_UNBOUND |
3151 WQ_MEM_RECLAIM, 1, name);
3152 if (!priv->dfs_chan_sw_workqueue) {
3153 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3154 ret = -ENOMEM;
3155 goto err_alloc_chsw;
3156 }
3157
3158 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3159 mwifiex_dfs_chan_sw_work_queue);
3160
3161 mutex_init(&priv->async_mutex);
3162
3163 /* Register network device */
3164 if (cfg80211_register_netdevice(dev)) {
3165 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3166 ret = -EFAULT;
3167 goto err_reg_netdev;
3168 }
3169
3170 mwifiex_dbg(adapter, INFO,
3171 "info: %s: Marvell 802.11 Adapter\n", dev->name);
3172
3173 #ifdef CONFIG_DEBUG_FS
3174 mwifiex_dev_debugfs_init(priv);
3175 #endif
3176
3177 update_vif_type_counter(adapter, type, +1);
3178
3179 return &priv->wdev;
3180
3181 err_reg_netdev:
3182 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3183 priv->dfs_chan_sw_workqueue = NULL;
3184 err_alloc_chsw:
3185 destroy_workqueue(priv->dfs_cac_workqueue);
3186 priv->dfs_cac_workqueue = NULL;
3187 err_alloc_cac:
3188 free_netdev(dev);
3189 priv->netdev = NULL;
3190 err_sta_init:
3191 err_set_bss_mode:
3192 err_alloc_netdev:
3193 memset(&priv->wdev, 0, sizeof(priv->wdev));
3194 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3195 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3196 return ERR_PTR(ret);
3197 }
3198 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3199
3200 /*
3201 * del_virtual_intf: remove the virtual interface determined by dev
3202 */
mwifiex_del_virtual_intf(struct wiphy * wiphy,struct wireless_dev * wdev)3203 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3204 {
3205 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3206 struct mwifiex_adapter *adapter = priv->adapter;
3207 struct sk_buff *skb, *tmp;
3208
3209 #ifdef CONFIG_DEBUG_FS
3210 mwifiex_dev_debugfs_remove(priv);
3211 #endif
3212
3213 if (priv->sched_scanning)
3214 priv->sched_scanning = false;
3215
3216 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3217
3218 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3219 skb_unlink(skb, &priv->bypass_txq);
3220 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3221 }
3222
3223 if (netif_carrier_ok(priv->netdev))
3224 netif_carrier_off(priv->netdev);
3225
3226 if (wdev->netdev->reg_state == NETREG_REGISTERED)
3227 cfg80211_unregister_netdevice(wdev->netdev);
3228
3229 if (priv->dfs_cac_workqueue) {
3230 destroy_workqueue(priv->dfs_cac_workqueue);
3231 priv->dfs_cac_workqueue = NULL;
3232 }
3233
3234 if (priv->dfs_chan_sw_workqueue) {
3235 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3236 priv->dfs_chan_sw_workqueue = NULL;
3237 }
3238 /* Clear the priv in adapter */
3239 priv->netdev = NULL;
3240
3241 update_vif_type_counter(adapter, priv->bss_mode, -1);
3242
3243 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3244
3245 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3246 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3247 kfree(priv->hist_data);
3248
3249 return 0;
3250 }
3251 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3252
3253 static bool
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern * pat,s8 * byte_seq,u8 max_byte_seq)3254 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3255 u8 max_byte_seq)
3256 {
3257 int j, k, valid_byte_cnt = 0;
3258 bool dont_care_byte = false;
3259
3260 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3261 for (k = 0; k < 8; k++) {
3262 if (pat->mask[j] & 1 << k) {
3263 memcpy(byte_seq + valid_byte_cnt,
3264 &pat->pattern[j * 8 + k], 1);
3265 valid_byte_cnt++;
3266 if (dont_care_byte)
3267 return false;
3268 } else {
3269 if (valid_byte_cnt)
3270 dont_care_byte = true;
3271 }
3272
3273 /* wildcard bytes record as the offset
3274 * before the valid byte
3275 */
3276 if (!valid_byte_cnt && !dont_care_byte)
3277 pat->pkt_offset++;
3278
3279 if (valid_byte_cnt > max_byte_seq)
3280 return false;
3281 }
3282 }
3283
3284 byte_seq[max_byte_seq] = valid_byte_cnt;
3285
3286 return true;
3287 }
3288
3289 #ifdef CONFIG_PM
mwifiex_set_auto_arp_mef_entry(struct mwifiex_private * priv,struct mwifiex_mef_entry * mef_entry)3290 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3291 struct mwifiex_mef_entry *mef_entry)
3292 {
3293 int i, filt_num = 0, num_ipv4 = 0;
3294 struct in_device *in_dev;
3295 struct in_ifaddr *ifa;
3296 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3297 struct mwifiex_adapter *adapter = priv->adapter;
3298
3299 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3300 mef_entry->action = MEF_ACTION_AUTO_ARP;
3301
3302 /* Enable ARP offload feature */
3303 memset(ips, 0, sizeof(ips));
3304 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3305 if (adapter->priv[i]->netdev) {
3306 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3307 if (!in_dev)
3308 continue;
3309 ifa = rtnl_dereference(in_dev->ifa_list);
3310 if (!ifa || !ifa->ifa_local)
3311 continue;
3312 ips[i] = ifa->ifa_local;
3313 num_ipv4++;
3314 }
3315 }
3316
3317 for (i = 0; i < num_ipv4; i++) {
3318 if (!ips[i])
3319 continue;
3320 mef_entry->filter[filt_num].repeat = 1;
3321 memcpy(mef_entry->filter[filt_num].byte_seq,
3322 (u8 *)&ips[i], sizeof(ips[i]));
3323 mef_entry->filter[filt_num].
3324 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3325 sizeof(ips[i]);
3326 mef_entry->filter[filt_num].offset = 46;
3327 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3328 if (filt_num) {
3329 mef_entry->filter[filt_num].filt_action =
3330 TYPE_OR;
3331 }
3332 filt_num++;
3333 }
3334
3335 mef_entry->filter[filt_num].repeat = 1;
3336 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3337 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3338 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3339 mef_entry->filter[filt_num].offset = 20;
3340 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3341 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3342 }
3343
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)3344 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3345 struct mwifiex_ds_mef_cfg *mef_cfg,
3346 struct mwifiex_mef_entry *mef_entry,
3347 struct cfg80211_wowlan *wowlan)
3348 {
3349 int i, filt_num = 0, ret = 0;
3350 bool first_pat = true;
3351 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3352 static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3353 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3354
3355 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3356 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3357
3358 for (i = 0; i < wowlan->n_patterns; i++) {
3359 memset(byte_seq, 0, sizeof(byte_seq));
3360 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3361 byte_seq,
3362 MWIFIEX_MEF_MAX_BYTESEQ)) {
3363 mwifiex_dbg(priv->adapter, ERROR,
3364 "Pattern not supported\n");
3365 return -EOPNOTSUPP;
3366 }
3367
3368 if (!wowlan->patterns[i].pkt_offset) {
3369 if (!(byte_seq[0] & 0x01) &&
3370 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3371 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3372 continue;
3373 } else if (is_broadcast_ether_addr(byte_seq)) {
3374 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3375 continue;
3376 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3377 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3378 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3379 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3380 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3381 continue;
3382 }
3383 }
3384 mef_entry->filter[filt_num].repeat = 1;
3385 mef_entry->filter[filt_num].offset =
3386 wowlan->patterns[i].pkt_offset;
3387 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3388 sizeof(byte_seq));
3389 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3390
3391 if (first_pat) {
3392 first_pat = false;
3393 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3394 } else {
3395 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3396 }
3397
3398 filt_num++;
3399 }
3400
3401 if (wowlan->magic_pkt) {
3402 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3403 mef_entry->filter[filt_num].repeat = 16;
3404 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3405 ETH_ALEN);
3406 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3407 ETH_ALEN;
3408 mef_entry->filter[filt_num].offset = 28;
3409 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3410 if (filt_num)
3411 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3412
3413 filt_num++;
3414 mef_entry->filter[filt_num].repeat = 16;
3415 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3416 ETH_ALEN);
3417 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3418 ETH_ALEN;
3419 mef_entry->filter[filt_num].offset = 56;
3420 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3421 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3422 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3423 }
3424 return ret;
3425 }
3426
mwifiex_set_mef_filter(struct mwifiex_private * priv,struct cfg80211_wowlan * wowlan)3427 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3428 struct cfg80211_wowlan *wowlan)
3429 {
3430 int ret = 0, num_entries = 1;
3431 struct mwifiex_ds_mef_cfg mef_cfg;
3432 struct mwifiex_mef_entry *mef_entry;
3433
3434 if (wowlan->n_patterns || wowlan->magic_pkt)
3435 num_entries++;
3436
3437 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3438 if (!mef_entry)
3439 return -ENOMEM;
3440
3441 memset(&mef_cfg, 0, sizeof(mef_cfg));
3442 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3443 MWIFIEX_CRITERIA_UNICAST;
3444 mef_cfg.num_entries = num_entries;
3445 mef_cfg.mef_entry = mef_entry;
3446
3447 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3448
3449 if (wowlan->n_patterns || wowlan->magic_pkt) {
3450 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3451 &mef_entry[1], wowlan);
3452 if (ret)
3453 goto err;
3454 }
3455
3456 if (!mef_cfg.criteria)
3457 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3458 MWIFIEX_CRITERIA_UNICAST |
3459 MWIFIEX_CRITERIA_MULTICAST;
3460
3461 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3462 HostCmd_ACT_GEN_SET, 0,
3463 &mef_cfg, true);
3464
3465 err:
3466 kfree(mef_entry);
3467 return ret;
3468 }
3469
mwifiex_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)3470 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3471 struct cfg80211_wowlan *wowlan)
3472 {
3473 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3474 struct mwifiex_ds_hs_cfg hs_cfg;
3475 int i, ret = 0, retry_num = 10;
3476 struct mwifiex_private *priv;
3477 struct mwifiex_private *sta_priv =
3478 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3479
3480 sta_priv->scan_aborting = true;
3481 for (i = 0; i < adapter->priv_num; i++) {
3482 priv = adapter->priv[i];
3483 mwifiex_abort_cac(priv);
3484 }
3485
3486 mwifiex_cancel_all_pending_cmd(adapter);
3487
3488 for (i = 0; i < adapter->priv_num; i++) {
3489 priv = adapter->priv[i];
3490 if (priv && priv->netdev)
3491 netif_device_detach(priv->netdev);
3492 }
3493
3494 for (i = 0; i < retry_num; i++) {
3495 if (!mwifiex_wmm_lists_empty(adapter) ||
3496 !mwifiex_bypass_txlist_empty(adapter) ||
3497 !skb_queue_empty(&adapter->tx_data_q))
3498 usleep_range(10000, 15000);
3499 else
3500 break;
3501 }
3502
3503 if (!wowlan) {
3504 mwifiex_dbg(adapter, INFO,
3505 "None of the WOWLAN triggers enabled\n");
3506 ret = 0;
3507 goto done;
3508 }
3509
3510 if (!sta_priv->media_connected && !wowlan->nd_config) {
3511 mwifiex_dbg(adapter, ERROR,
3512 "Can not configure WOWLAN in disconnected state\n");
3513 ret = 0;
3514 goto done;
3515 }
3516
3517 ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3518 if (ret) {
3519 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3520 goto done;
3521 }
3522
3523 memset(&hs_cfg, 0, sizeof(hs_cfg));
3524 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3525
3526 if (wowlan->nd_config) {
3527 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3528 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3529 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3530 wowlan->nd_config);
3531 }
3532
3533 if (wowlan->disconnect) {
3534 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3535 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3536 }
3537
3538 hs_cfg.is_invoke_hostcmd = false;
3539 hs_cfg.gpio = adapter->hs_cfg.gpio;
3540 hs_cfg.gap = adapter->hs_cfg.gap;
3541 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3542 MWIFIEX_SYNC_CMD, &hs_cfg);
3543 if (ret)
3544 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3545
3546 done:
3547 sta_priv->scan_aborting = false;
3548 return ret;
3549 }
3550
mwifiex_cfg80211_resume(struct wiphy * wiphy)3551 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3552 {
3553 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3554 struct mwifiex_private *priv;
3555 struct mwifiex_ds_wakeup_reason wakeup_reason;
3556 struct cfg80211_wowlan_wakeup wakeup_report;
3557 int i;
3558 bool report_wakeup_reason = true;
3559
3560 for (i = 0; i < adapter->priv_num; i++) {
3561 priv = adapter->priv[i];
3562 if (priv && priv->netdev)
3563 netif_device_attach(priv->netdev);
3564 }
3565
3566 if (!wiphy->wowlan_config)
3567 goto done;
3568
3569 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3570 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3571 &wakeup_reason);
3572 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3573
3574 wakeup_report.pattern_idx = -1;
3575
3576 switch (wakeup_reason.hs_wakeup_reason) {
3577 case NO_HSWAKEUP_REASON:
3578 break;
3579 case BCAST_DATA_MATCHED:
3580 break;
3581 case MCAST_DATA_MATCHED:
3582 break;
3583 case UCAST_DATA_MATCHED:
3584 break;
3585 case MASKTABLE_EVENT_MATCHED:
3586 break;
3587 case NON_MASKABLE_EVENT_MATCHED:
3588 if (wiphy->wowlan_config->disconnect)
3589 wakeup_report.disconnect = true;
3590 if (wiphy->wowlan_config->nd_config)
3591 wakeup_report.net_detect = adapter->nd_info;
3592 break;
3593 case NON_MASKABLE_CONDITION_MATCHED:
3594 break;
3595 case MAGIC_PATTERN_MATCHED:
3596 if (wiphy->wowlan_config->magic_pkt)
3597 wakeup_report.magic_pkt = true;
3598 if (wiphy->wowlan_config->n_patterns)
3599 wakeup_report.pattern_idx = 1;
3600 break;
3601 case GTK_REKEY_FAILURE:
3602 if (wiphy->wowlan_config->gtk_rekey_failure)
3603 wakeup_report.gtk_rekey_failure = true;
3604 break;
3605 default:
3606 report_wakeup_reason = false;
3607 break;
3608 }
3609
3610 if (report_wakeup_reason)
3611 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3612 GFP_KERNEL);
3613
3614 done:
3615 if (adapter->nd_info) {
3616 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3617 kfree(adapter->nd_info->matches[i]);
3618 kfree(adapter->nd_info);
3619 adapter->nd_info = NULL;
3620 }
3621
3622 return 0;
3623 }
3624
mwifiex_cfg80211_set_wakeup(struct wiphy * wiphy,bool enabled)3625 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3626 bool enabled)
3627 {
3628 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3629
3630 device_set_wakeup_enable(adapter->dev, enabled);
3631 }
3632
mwifiex_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3633 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3634 struct cfg80211_gtk_rekey_data *data)
3635 {
3636 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3637
3638 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3639 return -EOPNOTSUPP;
3640
3641 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3642 HostCmd_ACT_GEN_SET, 0, data, true);
3643 }
3644
3645 #endif
3646
mwifiex_get_coalesce_pkt_type(u8 * byte_seq)3647 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3648 {
3649 static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3650 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3651 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3652
3653 if ((byte_seq[0] & 0x01) &&
3654 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3655 return PACKET_TYPE_UNICAST;
3656 else if (!memcmp(byte_seq, bc_mac, 4))
3657 return PACKET_TYPE_BROADCAST;
3658 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3659 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3660 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3661 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3662 return PACKET_TYPE_MULTICAST;
3663
3664 return 0;
3665 }
3666
3667 static int
mwifiex_fill_coalesce_rule_info(struct mwifiex_private * priv,struct cfg80211_coalesce_rules * crule,struct mwifiex_coalesce_rule * mrule)3668 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3669 struct cfg80211_coalesce_rules *crule,
3670 struct mwifiex_coalesce_rule *mrule)
3671 {
3672 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3673 struct filt_field_param *param;
3674 int i;
3675
3676 mrule->max_coalescing_delay = crule->delay;
3677
3678 param = mrule->params;
3679
3680 for (i = 0; i < crule->n_patterns; i++) {
3681 memset(byte_seq, 0, sizeof(byte_seq));
3682 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3683 byte_seq,
3684 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3685 mwifiex_dbg(priv->adapter, ERROR,
3686 "Pattern not supported\n");
3687 return -EOPNOTSUPP;
3688 }
3689
3690 if (!crule->patterns[i].pkt_offset) {
3691 u8 pkt_type;
3692
3693 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3694 if (pkt_type && mrule->pkt_type) {
3695 mwifiex_dbg(priv->adapter, ERROR,
3696 "Multiple packet types not allowed\n");
3697 return -EOPNOTSUPP;
3698 } else if (pkt_type) {
3699 mrule->pkt_type = pkt_type;
3700 continue;
3701 }
3702 }
3703
3704 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3705 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3706 else
3707 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3708
3709 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3710 memcpy(param->operand_byte_stream, byte_seq,
3711 param->operand_len);
3712 param->offset = crule->patterns[i].pkt_offset;
3713 param++;
3714
3715 mrule->num_of_fields++;
3716 }
3717
3718 if (!mrule->pkt_type) {
3719 mwifiex_dbg(priv->adapter, ERROR,
3720 "Packet type can not be determined\n");
3721 return -EOPNOTSUPP;
3722 }
3723
3724 return 0;
3725 }
3726
mwifiex_cfg80211_set_coalesce(struct wiphy * wiphy,struct cfg80211_coalesce * coalesce)3727 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3728 struct cfg80211_coalesce *coalesce)
3729 {
3730 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3731 int i, ret;
3732 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3733 struct mwifiex_private *priv =
3734 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3735
3736 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3737 if (!coalesce) {
3738 mwifiex_dbg(adapter, WARN,
3739 "Disable coalesce and reset all previous rules\n");
3740 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3741 HostCmd_ACT_GEN_SET, 0,
3742 &coalesce_cfg, true);
3743 }
3744
3745 coalesce_cfg.num_of_rules = coalesce->n_rules;
3746 for (i = 0; i < coalesce->n_rules; i++) {
3747 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3748 &coalesce_cfg.rule[i]);
3749 if (ret) {
3750 mwifiex_dbg(adapter, ERROR,
3751 "Recheck the patterns provided for rule %d\n",
3752 i + 1);
3753 return ret;
3754 }
3755 }
3756
3757 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3758 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3759 }
3760
3761 /* cfg80211 ops handler for tdls_mgmt.
3762 * Function prepares TDLS action frame packets and forwards them to FW
3763 */
3764 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)3765 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3766 const u8 *peer, u8 action_code, u8 dialog_token,
3767 u16 status_code, u32 peer_capability,
3768 bool initiator, const u8 *extra_ies,
3769 size_t extra_ies_len)
3770 {
3771 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3772 int ret;
3773
3774 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3775 return -EOPNOTSUPP;
3776
3777 /* make sure we are in station mode and connected */
3778 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3779 return -EOPNOTSUPP;
3780
3781 switch (action_code) {
3782 case WLAN_TDLS_SETUP_REQUEST:
3783 mwifiex_dbg(priv->adapter, MSG,
3784 "Send TDLS Setup Request to %pM status_code=%d\n",
3785 peer, status_code);
3786 mwifiex_add_auto_tdls_peer(priv, peer);
3787 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3788 dialog_token, status_code,
3789 extra_ies, extra_ies_len);
3790 break;
3791 case WLAN_TDLS_SETUP_RESPONSE:
3792 mwifiex_add_auto_tdls_peer(priv, peer);
3793 mwifiex_dbg(priv->adapter, MSG,
3794 "Send TDLS Setup Response to %pM status_code=%d\n",
3795 peer, status_code);
3796 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3797 dialog_token, status_code,
3798 extra_ies, extra_ies_len);
3799 break;
3800 case WLAN_TDLS_SETUP_CONFIRM:
3801 mwifiex_dbg(priv->adapter, MSG,
3802 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3803 status_code);
3804 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3805 dialog_token, status_code,
3806 extra_ies, extra_ies_len);
3807 break;
3808 case WLAN_TDLS_TEARDOWN:
3809 mwifiex_dbg(priv->adapter, MSG,
3810 "Send TDLS Tear down to %pM\n", peer);
3811 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3812 dialog_token, status_code,
3813 extra_ies, extra_ies_len);
3814 break;
3815 case WLAN_TDLS_DISCOVERY_REQUEST:
3816 mwifiex_dbg(priv->adapter, MSG,
3817 "Send TDLS Discovery Request to %pM\n", peer);
3818 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3819 dialog_token, status_code,
3820 extra_ies, extra_ies_len);
3821 break;
3822 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3823 mwifiex_dbg(priv->adapter, MSG,
3824 "Send TDLS Discovery Response to %pM\n", peer);
3825 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3826 dialog_token, status_code,
3827 extra_ies, extra_ies_len);
3828 break;
3829 default:
3830 mwifiex_dbg(priv->adapter, ERROR,
3831 "Unknown TDLS mgmt/action frame %pM\n", peer);
3832 ret = -EINVAL;
3833 break;
3834 }
3835
3836 return ret;
3837 }
3838
3839 static int
mwifiex_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,enum nl80211_tdls_operation action)3840 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3841 const u8 *peer, enum nl80211_tdls_operation action)
3842 {
3843 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3844
3845 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3846 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3847 return -EOPNOTSUPP;
3848
3849 /* make sure we are in station mode and connected */
3850 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3851 return -EOPNOTSUPP;
3852
3853 mwifiex_dbg(priv->adapter, MSG,
3854 "TDLS peer=%pM, oper=%d\n", peer, action);
3855
3856 switch (action) {
3857 case NL80211_TDLS_ENABLE_LINK:
3858 action = MWIFIEX_TDLS_ENABLE_LINK;
3859 break;
3860 case NL80211_TDLS_DISABLE_LINK:
3861 action = MWIFIEX_TDLS_DISABLE_LINK;
3862 break;
3863 case NL80211_TDLS_TEARDOWN:
3864 /* shouldn't happen!*/
3865 mwifiex_dbg(priv->adapter, ERROR,
3866 "tdls_oper: teardown from driver not supported\n");
3867 return -EINVAL;
3868 case NL80211_TDLS_SETUP:
3869 /* shouldn't happen!*/
3870 mwifiex_dbg(priv->adapter, ERROR,
3871 "tdls_oper: setup from driver not supported\n");
3872 return -EINVAL;
3873 case NL80211_TDLS_DISCOVERY_REQ:
3874 /* shouldn't happen!*/
3875 mwifiex_dbg(priv->adapter, ERROR,
3876 "tdls_oper: discovery from driver not supported\n");
3877 return -EINVAL;
3878 default:
3879 mwifiex_dbg(priv->adapter, ERROR,
3880 "tdls_oper: operation not supported\n");
3881 return -EOPNOTSUPP;
3882 }
3883
3884 return mwifiex_tdls_oper(priv, peer, action);
3885 }
3886
3887 static int
mwifiex_cfg80211_tdls_chan_switch(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,u8 oper_class,struct cfg80211_chan_def * chandef)3888 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3889 const u8 *addr, u8 oper_class,
3890 struct cfg80211_chan_def *chandef)
3891 {
3892 struct mwifiex_sta_node *sta_ptr;
3893 u16 chan;
3894 u8 second_chan_offset, band;
3895 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3896
3897 spin_lock_bh(&priv->sta_list_spinlock);
3898 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3899 if (!sta_ptr) {
3900 spin_unlock_bh(&priv->sta_list_spinlock);
3901 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3902 __func__, addr);
3903 return -ENOENT;
3904 }
3905
3906 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3907 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3908 spin_unlock_bh(&priv->sta_list_spinlock);
3909 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3910 return -ENOENT;
3911 }
3912
3913 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3914 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3915 spin_unlock_bh(&priv->sta_list_spinlock);
3916 wiphy_err(wiphy, "channel switch is running, abort request\n");
3917 return -EALREADY;
3918 }
3919 spin_unlock_bh(&priv->sta_list_spinlock);
3920
3921 chan = chandef->chan->hw_value;
3922 second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3923 band = chandef->chan->band;
3924 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3925
3926 return 0;
3927 }
3928
3929 static void
mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)3930 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3931 struct net_device *dev,
3932 const u8 *addr)
3933 {
3934 struct mwifiex_sta_node *sta_ptr;
3935 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3936
3937 spin_lock_bh(&priv->sta_list_spinlock);
3938 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3939 if (!sta_ptr) {
3940 spin_unlock_bh(&priv->sta_list_spinlock);
3941 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3942 __func__, addr);
3943 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3944 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3945 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3946 spin_unlock_bh(&priv->sta_list_spinlock);
3947 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3948 addr);
3949 } else {
3950 spin_unlock_bh(&priv->sta_list_spinlock);
3951 mwifiex_stop_tdls_cs(priv, addr);
3952 }
3953 }
3954
3955 static int
mwifiex_cfg80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3956 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3957 const u8 *mac, struct station_parameters *params)
3958 {
3959 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3960
3961 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3962 return -EOPNOTSUPP;
3963
3964 /* make sure we are in station mode and connected */
3965 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3966 return -EOPNOTSUPP;
3967
3968 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3969 }
3970
3971 static int
mwifiex_cfg80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3972 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3973 struct cfg80211_csa_settings *params)
3974 {
3975 struct ieee_types_header *chsw_ie;
3976 struct ieee80211_channel_sw_ie *channel_sw;
3977 int chsw_msec;
3978 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3979
3980 if (priv->adapter->scan_processing) {
3981 mwifiex_dbg(priv->adapter, ERROR,
3982 "radar detection: scan in process...\n");
3983 return -EBUSY;
3984 }
3985
3986 if (priv->wdev.cac_started)
3987 return -EBUSY;
3988
3989 if (cfg80211_chandef_identical(¶ms->chandef,
3990 &priv->dfs_chandef))
3991 return -EINVAL;
3992
3993 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3994 params->beacon_csa.tail,
3995 params->beacon_csa.tail_len);
3996 if (!chsw_ie) {
3997 mwifiex_dbg(priv->adapter, ERROR,
3998 "Could not parse channel switch announcement IE\n");
3999 return -EINVAL;
4000 }
4001
4002 channel_sw = (void *)(chsw_ie + 1);
4003 if (channel_sw->mode) {
4004 if (netif_carrier_ok(priv->netdev))
4005 netif_carrier_off(priv->netdev);
4006 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
4007 }
4008
4009 if (mwifiex_del_mgmt_ies(priv))
4010 mwifiex_dbg(priv->adapter, ERROR,
4011 "Failed to delete mgmt IEs!\n");
4012
4013 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) {
4014 mwifiex_dbg(priv->adapter, ERROR,
4015 "%s: setting mgmt ies failed\n", __func__);
4016 return -EFAULT;
4017 }
4018
4019 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef));
4020 memcpy(&priv->beacon_after, ¶ms->beacon_after,
4021 sizeof(priv->beacon_after));
4022
4023 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
4024 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
4025 msecs_to_jiffies(chsw_msec));
4026 return 0;
4027 }
4028
mwifiex_cfg80211_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4029 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
4030 struct wireless_dev *wdev,
4031 unsigned int link_id,
4032 struct cfg80211_chan_def *chandef)
4033 {
4034 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4035 struct mwifiex_bssdescriptor *curr_bss;
4036 struct ieee80211_channel *chan;
4037 enum nl80211_channel_type chan_type;
4038 enum nl80211_band band;
4039 int freq;
4040 int ret = -ENODATA;
4041
4042 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4043 cfg80211_chandef_valid(&priv->bss_chandef)) {
4044 *chandef = priv->bss_chandef;
4045 ret = 0;
4046 } else if (priv->media_connected) {
4047 curr_bss = &priv->curr_bss_params.bss_descriptor;
4048 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4049 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4050 chan = ieee80211_get_channel(wiphy, freq);
4051
4052 if (priv->ht_param_present) {
4053 chan_type = mwifiex_get_chan_type(priv);
4054 cfg80211_chandef_create(chandef, chan, chan_type);
4055 } else {
4056 cfg80211_chandef_create(chandef, chan,
4057 NL80211_CHAN_NO_HT);
4058 }
4059 ret = 0;
4060 }
4061
4062 return ret;
4063 }
4064
4065 #ifdef CONFIG_NL80211_TESTMODE
4066
4067 enum mwifiex_tm_attr {
4068 __MWIFIEX_TM_ATTR_INVALID = 0,
4069 MWIFIEX_TM_ATTR_CMD = 1,
4070 MWIFIEX_TM_ATTR_DATA = 2,
4071
4072 /* keep last */
4073 __MWIFIEX_TM_ATTR_AFTER_LAST,
4074 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4075 };
4076
4077 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4078 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 },
4079 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY,
4080 .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4081 };
4082
4083 enum mwifiex_tm_command {
4084 MWIFIEX_TM_CMD_HOSTCMD = 0,
4085 };
4086
mwifiex_tm_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)4087 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4088 void *data, int len)
4089 {
4090 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4091 struct mwifiex_ds_misc_cmd *hostcmd;
4092 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4093 struct sk_buff *skb;
4094 int err;
4095
4096 if (!priv)
4097 return -EINVAL;
4098
4099 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4100 mwifiex_tm_policy, NULL);
4101 if (err)
4102 return err;
4103
4104 if (!tb[MWIFIEX_TM_ATTR_CMD])
4105 return -EINVAL;
4106
4107 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4108 case MWIFIEX_TM_CMD_HOSTCMD:
4109 if (!tb[MWIFIEX_TM_ATTR_DATA])
4110 return -EINVAL;
4111
4112 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4113 if (!hostcmd)
4114 return -ENOMEM;
4115
4116 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4117 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4118 hostcmd->len);
4119
4120 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4121 dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4122 kfree(hostcmd);
4123 return -EFAULT;
4124 }
4125
4126 /* process hostcmd response*/
4127 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4128 if (!skb) {
4129 kfree(hostcmd);
4130 return -ENOMEM;
4131 }
4132 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4133 hostcmd->len, hostcmd->cmd);
4134 if (err) {
4135 kfree(hostcmd);
4136 kfree_skb(skb);
4137 return -EMSGSIZE;
4138 }
4139
4140 err = cfg80211_testmode_reply(skb);
4141 kfree(hostcmd);
4142 return err;
4143 default:
4144 return -EOPNOTSUPP;
4145 }
4146 }
4147 #endif
4148
4149 static int
mwifiex_cfg80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)4150 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4151 struct net_device *dev,
4152 struct cfg80211_chan_def *chandef,
4153 u32 cac_time_ms)
4154 {
4155 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4156 struct mwifiex_radar_params radar_params;
4157
4158 if (priv->adapter->scan_processing) {
4159 mwifiex_dbg(priv->adapter, ERROR,
4160 "radar detection: scan already in process...\n");
4161 return -EBUSY;
4162 }
4163
4164 if (!mwifiex_is_11h_active(priv)) {
4165 mwifiex_dbg(priv->adapter, INFO,
4166 "Enable 11h extensions in FW\n");
4167 if (mwifiex_11h_activate(priv, true)) {
4168 mwifiex_dbg(priv->adapter, ERROR,
4169 "Failed to activate 11h extensions!!");
4170 return -1;
4171 }
4172 priv->state_11h.is_11h_active = true;
4173 }
4174
4175 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4176 radar_params.chandef = chandef;
4177 radar_params.cac_time_ms = cac_time_ms;
4178
4179 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4180
4181 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4182 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4183 return -1;
4184
4185 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4186 msecs_to_jiffies(cac_time_ms));
4187 return 0;
4188 }
4189
4190 static int
mwifiex_cfg80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)4191 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4192 const u8 *mac,
4193 struct station_parameters *params)
4194 {
4195 int ret;
4196 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4197
4198 /* we support change_station handler only for TDLS peers*/
4199 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4200 return -EOPNOTSUPP;
4201
4202 /* make sure we are in station mode and connected */
4203 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4204 return -EOPNOTSUPP;
4205
4206 priv->sta_params = params;
4207
4208 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4209 priv->sta_params = NULL;
4210
4211 return ret;
4212 }
4213
4214 /* station cfg80211 operations */
4215 static struct cfg80211_ops mwifiex_cfg80211_ops = {
4216 .add_virtual_intf = mwifiex_add_virtual_intf,
4217 .del_virtual_intf = mwifiex_del_virtual_intf,
4218 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4219 .scan = mwifiex_cfg80211_scan,
4220 .connect = mwifiex_cfg80211_connect,
4221 .disconnect = mwifiex_cfg80211_disconnect,
4222 .get_station = mwifiex_cfg80211_get_station,
4223 .dump_station = mwifiex_cfg80211_dump_station,
4224 .dump_survey = mwifiex_cfg80211_dump_survey,
4225 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4226 .join_ibss = mwifiex_cfg80211_join_ibss,
4227 .leave_ibss = mwifiex_cfg80211_leave_ibss,
4228 .add_key = mwifiex_cfg80211_add_key,
4229 .del_key = mwifiex_cfg80211_del_key,
4230 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4231 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4232 .update_mgmt_frame_registrations =
4233 mwifiex_cfg80211_update_mgmt_frame_registrations,
4234 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4235 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4236 .set_default_key = mwifiex_cfg80211_set_default_key,
4237 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4238 .set_tx_power = mwifiex_cfg80211_set_tx_power,
4239 .get_tx_power = mwifiex_cfg80211_get_tx_power,
4240 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4241 .start_ap = mwifiex_cfg80211_start_ap,
4242 .stop_ap = mwifiex_cfg80211_stop_ap,
4243 .change_beacon = mwifiex_cfg80211_change_beacon,
4244 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4245 .set_antenna = mwifiex_cfg80211_set_antenna,
4246 .get_antenna = mwifiex_cfg80211_get_antenna,
4247 .del_station = mwifiex_cfg80211_del_station,
4248 .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4249 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4250 #ifdef CONFIG_PM
4251 .suspend = mwifiex_cfg80211_suspend,
4252 .resume = mwifiex_cfg80211_resume,
4253 .set_wakeup = mwifiex_cfg80211_set_wakeup,
4254 .set_rekey_data = mwifiex_set_rekey_data,
4255 #endif
4256 .set_coalesce = mwifiex_cfg80211_set_coalesce,
4257 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4258 .tdls_oper = mwifiex_cfg80211_tdls_oper,
4259 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4260 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4261 .add_station = mwifiex_cfg80211_add_station,
4262 .change_station = mwifiex_cfg80211_change_station,
4263 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4264 .get_channel = mwifiex_cfg80211_get_channel,
4265 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4266 .channel_switch = mwifiex_cfg80211_channel_switch,
4267 };
4268
4269 #ifdef CONFIG_PM
4270 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4271 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4272 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4273 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4274 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4275 .pattern_min_len = 1,
4276 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4277 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4278 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4279 };
4280
4281 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4282 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4283 WIPHY_WOWLAN_NET_DETECT,
4284 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4285 .pattern_min_len = 1,
4286 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4287 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4288 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4289 };
4290 #endif
4291
mwifiex_is_valid_alpha2(const char * alpha2)4292 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4293 {
4294 if (!alpha2 || strlen(alpha2) != 2)
4295 return false;
4296
4297 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4298 return true;
4299
4300 return false;
4301 }
4302
4303 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4304 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4305 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4306 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4307 .pattern_min_len = 1,
4308 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4309 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4310 };
4311
mwifiex_init_channel_scan_gap(struct mwifiex_adapter * adapter)4312 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4313 {
4314 u32 n_channels_bg, n_channels_a = 0;
4315
4316 n_channels_bg = mwifiex_band_2ghz.n_channels;
4317
4318 if (adapter->config_bands & BAND_A)
4319 n_channels_a = mwifiex_band_5ghz.n_channels;
4320
4321 /* allocate twice the number total channels, since the driver issues an
4322 * additional active scan request for hidden SSIDs on passive channels.
4323 */
4324 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4325 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4326 adapter->num_in_chan_stats));
4327
4328 if (!adapter->chan_stats)
4329 return -ENOMEM;
4330
4331 return 0;
4332 }
4333
4334 /*
4335 * This function registers the device with CFG802.11 subsystem.
4336 *
4337 * The function creates the wireless device/wiphy, populates it with
4338 * default parameters and handler function pointers, and finally
4339 * registers the device.
4340 */
4341
mwifiex_register_cfg80211(struct mwifiex_adapter * adapter)4342 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4343 {
4344 int ret;
4345 void *wdev_priv;
4346 struct wiphy *wiphy;
4347 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4348 u8 *country_code;
4349 u32 thr, retry;
4350
4351 /* create a new wiphy for use with cfg80211 */
4352 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
4353 sizeof(struct mwifiex_adapter *));
4354 if (!wiphy) {
4355 mwifiex_dbg(adapter, ERROR,
4356 "%s: creating new wiphy\n", __func__);
4357 return -ENOMEM;
4358 }
4359 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4360 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4361 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4362 wiphy->max_remain_on_channel_duration = 5000;
4363 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4364 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4365 BIT(NL80211_IFTYPE_P2P_GO) |
4366 BIT(NL80211_IFTYPE_AP);
4367
4368 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4369 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4370
4371 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz;
4372 if (adapter->config_bands & BAND_A)
4373 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz;
4374 else
4375 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4376
4377 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4378 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4379 else if (adapter->is_hw_11ac_capable)
4380 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4381 else
4382 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4383 wiphy->n_iface_combinations = 1;
4384
4385 if (adapter->max_sta_conn > adapter->max_p2p_conn)
4386 wiphy->max_ap_assoc_sta = adapter->max_sta_conn;
4387 else
4388 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn;
4389
4390 /* Initialize cipher suits */
4391 wiphy->cipher_suites = mwifiex_cipher_suites;
4392 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4393
4394 if (adapter->regd) {
4395 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4396 REGULATORY_DISABLE_BEACON_HINTS |
4397 REGULATORY_COUNTRY_IE_IGNORE;
4398 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4399 }
4400
4401 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4402 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4403 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
4404 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4405 WIPHY_FLAG_AP_UAPSD |
4406 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4407 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4408 WIPHY_FLAG_PS_ON_BY_DEFAULT;
4409
4410 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4411 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4412 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4413
4414 #ifdef CONFIG_PM
4415 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4416 wiphy->wowlan = &mwifiex_wowlan_support;
4417 else
4418 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4419 #endif
4420
4421 wiphy->coalesce = &mwifiex_coalesce_support;
4422
4423 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4424 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4425 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4426
4427 wiphy->max_sched_scan_reqs = 1;
4428 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4429 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4430 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4431
4432 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4433 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4434
4435 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4436 NL80211_FEATURE_LOW_PRIORITY_SCAN |
4437 NL80211_FEATURE_NEED_OBSS_SCAN;
4438
4439 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4440 wiphy->features |= NL80211_FEATURE_HT_IBSS;
4441
4442 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4443 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4444 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4445 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4446
4447 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4448 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4449
4450 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4451 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4452
4453 /* Reserve space for mwifiex specific private data for BSS */
4454 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4455
4456 wiphy->reg_notifier = mwifiex_reg_notifier;
4457
4458 /* Set struct mwifiex_adapter pointer in wiphy_priv */
4459 wdev_priv = wiphy_priv(wiphy);
4460 *(unsigned long *)wdev_priv = (unsigned long)adapter;
4461
4462 set_wiphy_dev(wiphy, priv->adapter->dev);
4463
4464 ret = wiphy_register(wiphy);
4465 if (ret < 0) {
4466 mwifiex_dbg(adapter, ERROR,
4467 "%s: wiphy_register failed: %d\n", __func__, ret);
4468 wiphy_free(wiphy);
4469 return ret;
4470 }
4471
4472 if (!adapter->regd) {
4473 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4474 mwifiex_dbg(adapter, INFO,
4475 "driver hint alpha2: %2.2s\n", reg_alpha2);
4476 regulatory_hint(wiphy, reg_alpha2);
4477 } else {
4478 if (adapter->region_code == 0x00) {
4479 mwifiex_dbg(adapter, WARN,
4480 "Ignore world regulatory domain\n");
4481 } else {
4482 wiphy->regulatory_flags |=
4483 REGULATORY_DISABLE_BEACON_HINTS |
4484 REGULATORY_COUNTRY_IE_IGNORE;
4485 country_code =
4486 mwifiex_11d_code_2_region(
4487 adapter->region_code);
4488 if (country_code &&
4489 regulatory_hint(wiphy, country_code))
4490 mwifiex_dbg(priv->adapter, ERROR,
4491 "regulatory_hint() failed\n");
4492 }
4493 }
4494 }
4495
4496 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4497 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4498 wiphy->frag_threshold = thr;
4499 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4500 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4501 wiphy->rts_threshold = thr;
4502 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4503 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4504 wiphy->retry_short = (u8) retry;
4505 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4506 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4507 wiphy->retry_long = (u8) retry;
4508
4509 adapter->wiphy = wiphy;
4510 return ret;
4511 }
4512