1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * NXP Wireless LAN device driver: CFG80211
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8 #include "cfg80211.h"
9 #include "main.h"
10 #include "11n.h"
11 #include "wmm.h"
12
13 static char *reg_alpha2;
14 module_param(reg_alpha2, charp, 0);
15
16 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
17 {
18 .max = MWIFIEX_MAX_BSS_NUM,
19 .types = BIT(NL80211_IFTYPE_STATION) |
20 BIT(NL80211_IFTYPE_P2P_GO) |
21 BIT(NL80211_IFTYPE_P2P_CLIENT) |
22 BIT(NL80211_IFTYPE_AP),
23 },
24 };
25
26 static const struct ieee80211_iface_combination
27 mwifiex_iface_comb_ap_sta = {
28 .limits = mwifiex_ap_sta_limits,
29 .num_different_channels = 1,
30 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
31 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
32 .beacon_int_infra_match = true,
33 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
34 BIT(NL80211_CHAN_WIDTH_20) |
35 BIT(NL80211_CHAN_WIDTH_40),
36 };
37
38 static const struct ieee80211_iface_combination
39 mwifiex_iface_comb_ap_sta_vht = {
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 BIT(NL80211_CHAN_WIDTH_80),
49 };
50
51 static const struct
52 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
53 .limits = mwifiex_ap_sta_limits,
54 .num_different_channels = 2,
55 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
56 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
57 .beacon_int_infra_match = true,
58 };
59
60 /*
61 * This function maps the nl802.11 channel type into driver channel type.
62 *
63 * The mapping is as follows -
64 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
65 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
66 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
67 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
68 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
69 */
mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)70 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
71 {
72 switch (chan_type) {
73 case NL80211_CHAN_NO_HT:
74 case NL80211_CHAN_HT20:
75 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
76 case NL80211_CHAN_HT40PLUS:
77 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
78 case NL80211_CHAN_HT40MINUS:
79 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
80 default:
81 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
82 }
83 }
84
85 /* This function maps IEEE HT secondary channel type to NL80211 channel type
86 */
mwifiex_get_chan_type(struct mwifiex_private * priv)87 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
88 {
89 struct mwifiex_channel_band channel_band;
90 int ret;
91
92 ret = mwifiex_get_chan_info(priv, &channel_band);
93
94 if (!ret) {
95 switch (channel_band.band_config.chan_width) {
96 case CHAN_BW_20MHZ:
97 if (IS_11N_ENABLED(priv))
98 return NL80211_CHAN_HT20;
99 else
100 return NL80211_CHAN_NO_HT;
101 case CHAN_BW_40MHZ:
102 if (channel_band.band_config.chan2_offset ==
103 SEC_CHAN_ABOVE)
104 return NL80211_CHAN_HT40PLUS;
105 else
106 return NL80211_CHAN_HT40MINUS;
107 default:
108 return NL80211_CHAN_HT20;
109 }
110 }
111
112 return NL80211_CHAN_HT20;
113 }
114
115 /*
116 * This function checks whether WEP is set.
117 */
118 static int
mwifiex_is_alg_wep(u32 cipher)119 mwifiex_is_alg_wep(u32 cipher)
120 {
121 switch (cipher) {
122 case WLAN_CIPHER_SUITE_WEP40:
123 case WLAN_CIPHER_SUITE_WEP104:
124 return 1;
125 default:
126 break;
127 }
128
129 return 0;
130 }
131
132 /*
133 * This function retrieves the private structure from kernel wiphy structure.
134 */
mwifiex_cfg80211_get_adapter(struct wiphy * wiphy)135 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
136 {
137 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
138 }
139
140 /*
141 * CFG802.11 operation handler to delete a network key.
142 */
143 static int
mwifiex_cfg80211_del_key(struct wiphy * wiphy,struct net_device * netdev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr)144 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
145 int link_id, u8 key_index, bool pairwise,
146 const u8 *mac_addr)
147 {
148 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
149 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
150 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
151
152 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
153 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
154 return -EFAULT;
155 }
156
157 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
158 return 0;
159 }
160
161 /*
162 * This function forms an skb for management frame.
163 */
164 static int
mwifiex_form_mgmt_frame(struct sk_buff * skb,const u8 * buf,size_t len)165 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
166 {
167 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
168 u16 pkt_len;
169 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
170
171 pkt_len = len + ETH_ALEN;
172
173 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
174 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
175 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
176
177 memcpy(skb_push(skb, sizeof(tx_control)),
178 &tx_control, sizeof(tx_control));
179
180 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
181
182 /* Add packet data and address4 */
183 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
184 skb_put_data(skb, addr, ETH_ALEN);
185 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
186 len - sizeof(struct ieee80211_hdr_3addr));
187
188 skb->priority = LOW_PRIO_TID;
189 __net_timestamp(skb);
190
191 return 0;
192 }
193
194 /*
195 * CFG802.11 operation handler to transmit a management frame.
196 */
197 static int
mwifiex_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)198 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
199 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
200 {
201 const u8 *buf = params->buf;
202 size_t len = params->len;
203 struct sk_buff *skb;
204 u16 pkt_len;
205 const struct ieee80211_mgmt *mgmt;
206 struct mwifiex_txinfo *tx_info;
207 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
208
209 if (!buf || !len) {
210 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
211 return -EFAULT;
212 }
213
214 mgmt = (const struct ieee80211_mgmt *)buf;
215 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
216 ieee80211_is_probe_resp(mgmt->frame_control)) {
217 /* Since we support offload probe resp, we need to skip probe
218 * resp in AP or GO mode */
219 mwifiex_dbg(priv->adapter, INFO,
220 "info: skip to send probe resp in AP or GO mode\n");
221 return 0;
222 }
223
224 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
225 if (ieee80211_is_auth(mgmt->frame_control))
226 mwifiex_dbg(priv->adapter, MSG,
227 "auth: send auth to %pM\n", mgmt->da);
228 if (ieee80211_is_deauth(mgmt->frame_control))
229 mwifiex_dbg(priv->adapter, MSG,
230 "auth: send deauth to %pM\n", mgmt->da);
231 if (ieee80211_is_disassoc(mgmt->frame_control))
232 mwifiex_dbg(priv->adapter, MSG,
233 "assoc: send disassoc to %pM\n", mgmt->da);
234 if (ieee80211_is_assoc_resp(mgmt->frame_control))
235 mwifiex_dbg(priv->adapter, MSG,
236 "assoc: send assoc resp to %pM\n",
237 mgmt->da);
238 if (ieee80211_is_reassoc_resp(mgmt->frame_control))
239 mwifiex_dbg(priv->adapter, MSG,
240 "assoc: send reassoc resp to %pM\n",
241 mgmt->da);
242 }
243
244 pkt_len = len + ETH_ALEN;
245 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
246 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
247 pkt_len + sizeof(pkt_len));
248
249 if (!skb) {
250 mwifiex_dbg(priv->adapter, ERROR,
251 "allocate skb failed for management frame\n");
252 return -ENOMEM;
253 }
254
255 tx_info = MWIFIEX_SKB_TXCB(skb);
256 memset(tx_info, 0, sizeof(*tx_info));
257 tx_info->bss_num = priv->bss_num;
258 tx_info->bss_type = priv->bss_type;
259 tx_info->pkt_len = pkt_len;
260
261 mwifiex_form_mgmt_frame(skb, buf, len);
262 *cookie = get_random_u32() | 1;
263
264 if (ieee80211_is_action(mgmt->frame_control))
265 skb = mwifiex_clone_skb_for_tx_status(priv,
266 skb,
267 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
268 else
269 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
270 GFP_ATOMIC);
271
272 mwifiex_queue_tx_pkt(priv, skb);
273
274 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
275 return 0;
276 }
277
278 /*
279 * CFG802.11 operation handler to register a mgmt frame.
280 */
281 static void
mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)282 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
283 struct wireless_dev *wdev,
284 struct mgmt_frame_regs *upd)
285 {
286 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
287 u32 mask = upd->interface_stypes;
288
289 if (mask != priv->mgmt_frame_mask) {
290 priv->mgmt_frame_mask = mask;
291 if (priv->host_mlme_reg)
292 priv->mgmt_frame_mask |= HOST_MLME_MGMT_MASK;
293 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
294 HostCmd_ACT_GEN_SET, 0,
295 &priv->mgmt_frame_mask, false);
296 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
297 }
298 }
299
300 /*
301 * CFG802.11 operation handler to remain on channel.
302 */
303 static int
mwifiex_cfg80211_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)304 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
305 struct wireless_dev *wdev,
306 struct ieee80211_channel *chan,
307 unsigned int duration, u64 *cookie)
308 {
309 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
310 int ret;
311
312 if (!chan || !cookie) {
313 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
314 return -EINVAL;
315 }
316
317 if (priv->roc_cfg.cookie) {
318 mwifiex_dbg(priv->adapter, INFO,
319 "info: ongoing ROC, cookie = 0x%llx\n",
320 priv->roc_cfg.cookie);
321 return -EBUSY;
322 }
323
324 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
325 duration);
326
327 if (!ret) {
328 *cookie = get_random_u32() | 1;
329 priv->roc_cfg.cookie = *cookie;
330 priv->roc_cfg.chan = *chan;
331
332 cfg80211_ready_on_channel(wdev, *cookie, chan,
333 duration, GFP_ATOMIC);
334
335 mwifiex_dbg(priv->adapter, INFO,
336 "info: ROC, cookie = 0x%llx\n", *cookie);
337 }
338
339 return ret;
340 }
341
342 /*
343 * CFG802.11 operation handler to cancel remain on channel.
344 */
345 static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)346 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
347 struct wireless_dev *wdev, u64 cookie)
348 {
349 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
350 int ret;
351
352 if (cookie != priv->roc_cfg.cookie)
353 return -ENOENT;
354
355 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
356 &priv->roc_cfg.chan, 0);
357
358 if (!ret) {
359 cfg80211_remain_on_channel_expired(wdev, cookie,
360 &priv->roc_cfg.chan,
361 GFP_ATOMIC);
362
363 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
364
365 mwifiex_dbg(priv->adapter, INFO,
366 "info: cancel ROC, cookie = 0x%llx\n", cookie);
367 }
368
369 return ret;
370 }
371
372 /*
373 * CFG802.11 operation handler to set Tx power.
374 */
375 static int
mwifiex_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)376 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
377 struct wireless_dev *wdev,
378 enum nl80211_tx_power_setting type,
379 int mbm)
380 {
381 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
382 struct mwifiex_private *priv;
383 struct mwifiex_power_cfg power_cfg;
384 int dbm = MBM_TO_DBM(mbm);
385
386 switch (type) {
387 case NL80211_TX_POWER_FIXED:
388 power_cfg.is_power_auto = 0;
389 power_cfg.is_power_fixed = 1;
390 power_cfg.power_level = dbm;
391 break;
392 case NL80211_TX_POWER_LIMITED:
393 power_cfg.is_power_auto = 0;
394 power_cfg.is_power_fixed = 0;
395 power_cfg.power_level = dbm;
396 break;
397 case NL80211_TX_POWER_AUTOMATIC:
398 power_cfg.is_power_auto = 1;
399 break;
400 }
401
402 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
403
404 return mwifiex_set_tx_power(priv, &power_cfg);
405 }
406
407 /*
408 * CFG802.11 operation handler to get Tx power.
409 */
410 static int
mwifiex_cfg80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)411 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
412 struct wireless_dev *wdev,
413 int *dbm)
414 {
415 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
416 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
417 MWIFIEX_BSS_ROLE_ANY);
418 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
419 HostCmd_ACT_GEN_GET, 0, NULL, true);
420
421 if (ret < 0)
422 return ret;
423
424 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
425 *dbm = priv->tx_power_level;
426
427 return 0;
428 }
429
430 /*
431 * CFG802.11 operation handler to set Power Save option.
432 *
433 * The timeout value, if provided, is currently ignored.
434 */
435 static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)436 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
437 struct net_device *dev,
438 bool enabled, int timeout)
439 {
440 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
441 u32 ps_mode;
442
443 if (timeout)
444 mwifiex_dbg(priv->adapter, INFO,
445 "info: ignore timeout value for IEEE Power Save\n");
446
447 ps_mode = enabled;
448
449 return mwifiex_drv_set_power(priv, &ps_mode);
450 }
451
452 /*
453 * CFG802.11 operation handler to set the default network key.
454 */
455 static int
mwifiex_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * netdev,int link_id,u8 key_index,bool unicast,bool multicast)456 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
457 int link_id, u8 key_index, bool unicast,
458 bool multicast)
459 {
460 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
461
462 /* Return if WEP key not configured */
463 if (!priv->sec_info.wep_enabled)
464 return 0;
465
466 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
467 priv->wep_key_curr_index = key_index;
468 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
469 NULL, 0)) {
470 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
471 return -EFAULT;
472 }
473
474 return 0;
475 }
476
477 /*
478 * CFG802.11 operation handler to add a network key.
479 */
480 static int
mwifiex_cfg80211_add_key(struct wiphy * wiphy,struct net_device * netdev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)481 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
482 int link_id, u8 key_index, bool pairwise,
483 const u8 *mac_addr, struct key_params *params)
484 {
485 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
486 struct mwifiex_wep_key *wep_key;
487 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
488 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
489
490 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
491 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
492 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
493 if (params->key && params->key_len) {
494 wep_key = &priv->wep_key[key_index];
495 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
496 memcpy(wep_key->key_material, params->key,
497 params->key_len);
498 wep_key->key_index = key_index;
499 wep_key->key_length = params->key_len;
500 priv->sec_info.wep_enabled = 1;
501 }
502 return 0;
503 }
504
505 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
506 key_index, peer_mac, 0)) {
507 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
508 return -EFAULT;
509 }
510
511 return 0;
512 }
513
514 /*
515 * CFG802.11 operation handler to set default mgmt key.
516 */
517 static int
mwifiex_cfg80211_set_default_mgmt_key(struct wiphy * wiphy,struct net_device * netdev,int link_id,u8 key_index)518 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
519 struct net_device *netdev,
520 int link_id,
521 u8 key_index)
522 {
523 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
524 struct mwifiex_ds_encrypt_key encrypt_key;
525
526 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
527
528 if (priv->adapter->host_mlme_enabled)
529 return 0;
530
531 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
532 encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
533 encrypt_key.key_index = key_index;
534 encrypt_key.is_igtk_def_key = true;
535 eth_broadcast_addr(encrypt_key.mac_addr);
536
537 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
538 HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) {
539 mwifiex_dbg(priv->adapter, ERROR,
540 "Sending KEY_MATERIAL command failed\n");
541 return -1;
542 }
543
544 return 0;
545 }
546
547 /*
548 * This function sends domain information to the firmware.
549 *
550 * The following information are passed to the firmware -
551 * - Country codes
552 * - Sub bands (first channel, number of channels, maximum Tx power)
553 */
mwifiex_send_domain_info_cmd_fw(struct wiphy * wiphy)554 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
555 {
556 u8 no_of_triplet = 0;
557 struct ieee80211_country_ie_triplet *t;
558 u8 no_of_parsed_chan = 0;
559 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
560 u8 i, flag = 0;
561 enum nl80211_band band;
562 struct ieee80211_supported_band *sband;
563 struct ieee80211_channel *ch;
564 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
565 struct mwifiex_private *priv;
566 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
567
568 /* Set country code */
569 domain_info->country_code[0] = adapter->country_code[0];
570 domain_info->country_code[1] = adapter->country_code[1];
571 domain_info->country_code[2] = ' ';
572
573 band = mwifiex_band_to_radio_type(adapter->config_bands);
574 if (!wiphy->bands[band]) {
575 mwifiex_dbg(adapter, ERROR,
576 "11D: setting domain info in FW\n");
577 return -1;
578 }
579
580 sband = wiphy->bands[band];
581
582 for (i = 0; i < sband->n_channels ; i++) {
583 ch = &sband->channels[i];
584 if (ch->flags & IEEE80211_CHAN_DISABLED)
585 continue;
586
587 if (!flag) {
588 flag = 1;
589 first_chan = (u32) ch->hw_value;
590 next_chan = first_chan;
591 max_pwr = ch->max_power;
592 no_of_parsed_chan = 1;
593 continue;
594 }
595
596 if (ch->hw_value == next_chan + 1 &&
597 ch->max_power == max_pwr) {
598 next_chan++;
599 no_of_parsed_chan++;
600 } else {
601 t = &domain_info->triplet[no_of_triplet];
602 t->chans.first_channel = first_chan;
603 t->chans.num_channels = no_of_parsed_chan;
604 t->chans.max_power = max_pwr;
605 no_of_triplet++;
606 first_chan = (u32) ch->hw_value;
607 next_chan = first_chan;
608 max_pwr = ch->max_power;
609 no_of_parsed_chan = 1;
610 }
611 }
612
613 if (flag) {
614 t = &domain_info->triplet[no_of_triplet];
615 t->chans.first_channel = first_chan;
616 t->chans.num_channels = no_of_parsed_chan;
617 t->chans.max_power = max_pwr;
618 no_of_triplet++;
619 }
620
621 domain_info->no_of_triplet = no_of_triplet;
622
623 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
624
625 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
626 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
627 mwifiex_dbg(adapter, INFO,
628 "11D: setting domain info in FW\n");
629 return -1;
630 }
631
632 return 0;
633 }
634
mwifiex_reg_apply_radar_flags(struct wiphy * wiphy)635 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
636 {
637 struct ieee80211_supported_band *sband;
638 struct ieee80211_channel *chan;
639 unsigned int i;
640
641 if (!wiphy->bands[NL80211_BAND_5GHZ])
642 return;
643 sband = wiphy->bands[NL80211_BAND_5GHZ];
644
645 for (i = 0; i < sband->n_channels; i++) {
646 chan = &sband->channels[i];
647 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
648 (chan->flags & IEEE80211_CHAN_RADAR))
649 chan->flags |= IEEE80211_CHAN_NO_IR;
650 }
651 }
652
653 /*
654 * CFG802.11 regulatory domain callback function.
655 *
656 * This function is called when the regulatory domain is changed due to the
657 * following reasons -
658 * - Set by driver
659 * - Set by system core
660 * - Set by user
661 * - Set bt Country IE
662 */
mwifiex_reg_notifier(struct wiphy * wiphy,struct regulatory_request * request)663 static void mwifiex_reg_notifier(struct wiphy *wiphy,
664 struct regulatory_request *request)
665 {
666 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
667 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
668 MWIFIEX_BSS_ROLE_ANY);
669 mwifiex_dbg(adapter, INFO,
670 "info: cfg80211 regulatory domain callback for %c%c\n",
671 request->alpha2[0], request->alpha2[1]);
672 mwifiex_reg_apply_radar_flags(wiphy);
673
674 switch (request->initiator) {
675 case NL80211_REGDOM_SET_BY_DRIVER:
676 case NL80211_REGDOM_SET_BY_CORE:
677 case NL80211_REGDOM_SET_BY_USER:
678 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
679 break;
680 default:
681 mwifiex_dbg(adapter, ERROR,
682 "unknown regdom initiator: %d\n",
683 request->initiator);
684 return;
685 }
686
687 /* Don't send world or same regdom info to firmware */
688 if (strncmp(request->alpha2, "00", 2) &&
689 strncmp(request->alpha2, adapter->country_code,
690 sizeof(request->alpha2))) {
691 memcpy(adapter->country_code, request->alpha2,
692 sizeof(request->alpha2));
693 mwifiex_send_domain_info_cmd_fw(wiphy);
694 mwifiex_dnld_txpwr_table(priv);
695 }
696 }
697
698 /*
699 * This function sets the fragmentation threshold.
700 *
701 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
702 * and MWIFIEX_FRAG_MAX_VALUE.
703 */
704 static int
mwifiex_set_frag(struct mwifiex_private * priv,u32 frag_thr)705 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
706 {
707 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
708 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
709 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
710
711 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
712 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
713 &frag_thr, true);
714 }
715
716 /*
717 * This function sets the RTS threshold.
718
719 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
720 * and MWIFIEX_RTS_MAX_VALUE.
721 */
722 static int
mwifiex_set_rts(struct mwifiex_private * priv,u32 rts_thr)723 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
724 {
725 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
726 rts_thr = MWIFIEX_RTS_MAX_VALUE;
727
728 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
729 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
730 &rts_thr, true);
731 }
732
733 /*
734 * CFG802.11 operation handler to set wiphy parameters.
735 *
736 * This function can be used to set the RTS threshold and the
737 * Fragmentation threshold of the driver.
738 */
739 static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)740 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
741 {
742 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
743 struct mwifiex_private *priv;
744 struct mwifiex_uap_bss_param *bss_cfg;
745 int ret;
746
747 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
748
749 switch (priv->bss_role) {
750 case MWIFIEX_BSS_ROLE_UAP:
751 if (priv->bss_started) {
752 mwifiex_dbg(adapter, ERROR,
753 "cannot change wiphy params when bss started");
754 return -EINVAL;
755 }
756
757 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
758 if (!bss_cfg)
759 return -ENOMEM;
760
761 mwifiex_set_sys_config_invalid_data(bss_cfg);
762
763 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
764 bss_cfg->rts_threshold = wiphy->rts_threshold;
765 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
766 bss_cfg->frag_threshold = wiphy->frag_threshold;
767 if (changed & WIPHY_PARAM_RETRY_LONG)
768 bss_cfg->retry_limit = wiphy->retry_long;
769
770 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
771 HostCmd_ACT_GEN_SET,
772 UAP_BSS_PARAMS_I, bss_cfg,
773 false);
774
775 kfree(bss_cfg);
776 if (ret) {
777 mwifiex_dbg(adapter, ERROR,
778 "Failed to set wiphy phy params\n");
779 return ret;
780 }
781 break;
782
783 case MWIFIEX_BSS_ROLE_STA:
784 if (priv->media_connected) {
785 mwifiex_dbg(adapter, ERROR,
786 "cannot change wiphy params when connected");
787 return -EINVAL;
788 }
789 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
790 ret = mwifiex_set_rts(priv,
791 wiphy->rts_threshold);
792 if (ret)
793 return ret;
794 }
795 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
796 ret = mwifiex_set_frag(priv,
797 wiphy->frag_threshold);
798 if (ret)
799 return ret;
800 }
801 break;
802 }
803
804 return 0;
805 }
806
807 static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private * priv)808 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
809 {
810 u16 mode = P2P_MODE_DISABLE;
811
812 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
813 HostCmd_ACT_GEN_SET, 0, &mode, true))
814 return -1;
815
816 return 0;
817 }
818
819 /*
820 * This function initializes the functionalities for P2P client.
821 * The P2P client initialization sequence is:
822 * disable -> device -> client
823 */
824 static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private * priv)825 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
826 {
827 u16 mode;
828
829 if (mwifiex_cfg80211_deinit_p2p(priv))
830 return -1;
831
832 mode = P2P_MODE_DEVICE;
833 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
834 HostCmd_ACT_GEN_SET, 0, &mode, true))
835 return -1;
836
837 mode = P2P_MODE_CLIENT;
838 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
839 HostCmd_ACT_GEN_SET, 0, &mode, true))
840 return -1;
841
842 return 0;
843 }
844
845 /*
846 * This function initializes the functionalities for P2P GO.
847 * The P2P GO initialization sequence is:
848 * disable -> device -> GO
849 */
850 static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private * priv)851 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
852 {
853 u16 mode;
854
855 if (mwifiex_cfg80211_deinit_p2p(priv))
856 return -1;
857
858 mode = P2P_MODE_DEVICE;
859 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
860 HostCmd_ACT_GEN_SET, 0, &mode, true))
861 return -1;
862
863 mode = P2P_MODE_GO;
864 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
865 HostCmd_ACT_GEN_SET, 0, &mode, true))
866 return -1;
867
868 return 0;
869 }
870
mwifiex_deinit_priv_params(struct mwifiex_private * priv)871 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
872 {
873 struct mwifiex_adapter *adapter = priv->adapter;
874 unsigned long flags;
875
876 priv->host_mlme_reg = false;
877 priv->mgmt_frame_mask = 0;
878 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
879 HostCmd_ACT_GEN_SET, 0,
880 &priv->mgmt_frame_mask, false)) {
881 mwifiex_dbg(adapter, ERROR,
882 "could not unregister mgmt frame rx\n");
883 return -1;
884 }
885
886 mwifiex_deauthenticate(priv, NULL);
887
888 spin_lock_irqsave(&adapter->main_proc_lock, flags);
889 adapter->main_locked = true;
890 if (adapter->mwifiex_processing) {
891 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
892 flush_workqueue(adapter->workqueue);
893 } else {
894 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
895 }
896
897 spin_lock_bh(&adapter->rx_proc_lock);
898 adapter->rx_locked = true;
899 if (adapter->rx_processing) {
900 spin_unlock_bh(&adapter->rx_proc_lock);
901 flush_workqueue(adapter->rx_workqueue);
902 } else {
903 spin_unlock_bh(&adapter->rx_proc_lock);
904 }
905
906 mwifiex_free_priv(priv);
907 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
908 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
909 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
910
911 return 0;
912 }
913
914 static int
mwifiex_init_new_priv_params(struct mwifiex_private * priv,struct net_device * dev,enum nl80211_iftype type)915 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
916 struct net_device *dev,
917 enum nl80211_iftype type)
918 {
919 struct mwifiex_adapter *adapter = priv->adapter;
920 unsigned long flags;
921
922 mwifiex_init_priv(priv);
923
924 priv->bss_mode = type;
925 priv->wdev.iftype = type;
926
927 mwifiex_init_priv_params(priv, priv->netdev);
928 priv->bss_started = 0;
929
930 switch (type) {
931 case NL80211_IFTYPE_STATION:
932 case NL80211_IFTYPE_ADHOC:
933 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
934 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
935 break;
936 case NL80211_IFTYPE_P2P_CLIENT:
937 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
938 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
939 break;
940 case NL80211_IFTYPE_P2P_GO:
941 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
942 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
943 break;
944 case NL80211_IFTYPE_AP:
945 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
946 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
947 break;
948 default:
949 mwifiex_dbg(adapter, ERROR,
950 "%s: changing to %d not supported\n",
951 dev->name, type);
952 return -EOPNOTSUPP;
953 }
954
955 priv->bss_num = mwifiex_get_unused_bss_num(adapter, priv->bss_type);
956
957 spin_lock_irqsave(&adapter->main_proc_lock, flags);
958 adapter->main_locked = false;
959 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
960
961 spin_lock_bh(&adapter->rx_proc_lock);
962 adapter->rx_locked = false;
963 spin_unlock_bh(&adapter->rx_proc_lock);
964
965 mwifiex_set_mac_address(priv, dev, false, NULL);
966
967 return 0;
968 }
969
970 static bool
is_vif_type_change_allowed(struct mwifiex_adapter * adapter,enum nl80211_iftype old_iftype,enum nl80211_iftype new_iftype)971 is_vif_type_change_allowed(struct mwifiex_adapter *adapter,
972 enum nl80211_iftype old_iftype,
973 enum nl80211_iftype new_iftype)
974 {
975 switch (old_iftype) {
976 case NL80211_IFTYPE_ADHOC:
977 switch (new_iftype) {
978 case NL80211_IFTYPE_STATION:
979 return true;
980 case NL80211_IFTYPE_P2P_CLIENT:
981 case NL80211_IFTYPE_P2P_GO:
982 return adapter->curr_iface_comb.p2p_intf !=
983 adapter->iface_limit.p2p_intf;
984 case NL80211_IFTYPE_AP:
985 return adapter->curr_iface_comb.uap_intf !=
986 adapter->iface_limit.uap_intf;
987 default:
988 return false;
989 }
990
991 case NL80211_IFTYPE_STATION:
992 switch (new_iftype) {
993 case NL80211_IFTYPE_ADHOC:
994 return true;
995 case NL80211_IFTYPE_P2P_CLIENT:
996 case NL80211_IFTYPE_P2P_GO:
997 return adapter->curr_iface_comb.p2p_intf !=
998 adapter->iface_limit.p2p_intf;
999 case NL80211_IFTYPE_AP:
1000 return adapter->curr_iface_comb.uap_intf !=
1001 adapter->iface_limit.uap_intf;
1002 default:
1003 return false;
1004 }
1005
1006 case NL80211_IFTYPE_AP:
1007 switch (new_iftype) {
1008 case NL80211_IFTYPE_ADHOC:
1009 case NL80211_IFTYPE_STATION:
1010 return adapter->curr_iface_comb.sta_intf !=
1011 adapter->iface_limit.sta_intf;
1012 case NL80211_IFTYPE_P2P_CLIENT:
1013 case NL80211_IFTYPE_P2P_GO:
1014 return adapter->curr_iface_comb.p2p_intf !=
1015 adapter->iface_limit.p2p_intf;
1016 default:
1017 return false;
1018 }
1019
1020 case NL80211_IFTYPE_P2P_CLIENT:
1021 switch (new_iftype) {
1022 case NL80211_IFTYPE_ADHOC:
1023 case NL80211_IFTYPE_STATION:
1024 return true;
1025 case NL80211_IFTYPE_P2P_GO:
1026 return true;
1027 case NL80211_IFTYPE_AP:
1028 return adapter->curr_iface_comb.uap_intf !=
1029 adapter->iface_limit.uap_intf;
1030 default:
1031 return false;
1032 }
1033
1034 case NL80211_IFTYPE_P2P_GO:
1035 switch (new_iftype) {
1036 case NL80211_IFTYPE_ADHOC:
1037 case NL80211_IFTYPE_STATION:
1038 return true;
1039 case NL80211_IFTYPE_P2P_CLIENT:
1040 return true;
1041 case NL80211_IFTYPE_AP:
1042 return adapter->curr_iface_comb.uap_intf !=
1043 adapter->iface_limit.uap_intf;
1044 default:
1045 return false;
1046 }
1047
1048 default:
1049 break;
1050 }
1051
1052 return false;
1053 }
1054
1055 static void
update_vif_type_counter(struct mwifiex_adapter * adapter,enum nl80211_iftype iftype,int change)1056 update_vif_type_counter(struct mwifiex_adapter *adapter,
1057 enum nl80211_iftype iftype,
1058 int change)
1059 {
1060 switch (iftype) {
1061 case NL80211_IFTYPE_UNSPECIFIED:
1062 case NL80211_IFTYPE_ADHOC:
1063 case NL80211_IFTYPE_STATION:
1064 adapter->curr_iface_comb.sta_intf += change;
1065 break;
1066 case NL80211_IFTYPE_AP:
1067 adapter->curr_iface_comb.uap_intf += change;
1068 break;
1069 case NL80211_IFTYPE_P2P_CLIENT:
1070 case NL80211_IFTYPE_P2P_GO:
1071 adapter->curr_iface_comb.p2p_intf += change;
1072 break;
1073 default:
1074 mwifiex_dbg(adapter, ERROR,
1075 "%s: Unsupported iftype passed: %d\n",
1076 __func__, iftype);
1077 break;
1078 }
1079 }
1080
1081 static int
mwifiex_change_vif_to_p2p(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,struct vif_params * params)1082 mwifiex_change_vif_to_p2p(struct net_device *dev,
1083 enum nl80211_iftype curr_iftype,
1084 enum nl80211_iftype type,
1085 struct vif_params *params)
1086 {
1087 struct mwifiex_private *priv;
1088 struct mwifiex_adapter *adapter;
1089
1090 priv = mwifiex_netdev_get_priv(dev);
1091
1092 if (!priv)
1093 return -1;
1094
1095 adapter = priv->adapter;
1096
1097 mwifiex_dbg(adapter, INFO,
1098 "%s: changing role to p2p\n", dev->name);
1099
1100 if (mwifiex_deinit_priv_params(priv))
1101 return -1;
1102 if (mwifiex_init_new_priv_params(priv, dev, type))
1103 return -1;
1104
1105 update_vif_type_counter(adapter, curr_iftype, -1);
1106 update_vif_type_counter(adapter, type, +1);
1107 dev->ieee80211_ptr->iftype = type;
1108
1109 switch (type) {
1110 case NL80211_IFTYPE_P2P_CLIENT:
1111 if (mwifiex_cfg80211_init_p2p_client(priv))
1112 return -EFAULT;
1113 break;
1114 case NL80211_IFTYPE_P2P_GO:
1115 if (mwifiex_cfg80211_init_p2p_go(priv))
1116 return -EFAULT;
1117 break;
1118 default:
1119 mwifiex_dbg(adapter, ERROR,
1120 "%s: changing to %d not supported\n",
1121 dev->name, type);
1122 return -EOPNOTSUPP;
1123 }
1124
1125 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1126 HostCmd_ACT_GEN_SET, 0, NULL, true))
1127 return -1;
1128
1129 if (mwifiex_sta_init_cmd(priv, false, false))
1130 return -1;
1131
1132 return 0;
1133 }
1134
1135 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)1136 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1137 enum nl80211_iftype curr_iftype,
1138 enum nl80211_iftype type,
1139 struct vif_params *params)
1140 {
1141 struct mwifiex_private *priv;
1142 struct mwifiex_adapter *adapter;
1143
1144 priv = mwifiex_netdev_get_priv(dev);
1145
1146 if (!priv)
1147 return -1;
1148
1149 adapter = priv->adapter;
1150
1151 if (type == NL80211_IFTYPE_STATION)
1152 mwifiex_dbg(adapter, INFO,
1153 "%s: changing role to station\n", dev->name);
1154 else
1155 mwifiex_dbg(adapter, INFO,
1156 "%s: changing role to adhoc\n", dev->name);
1157
1158 if (mwifiex_deinit_priv_params(priv))
1159 return -1;
1160 if (mwifiex_init_new_priv_params(priv, dev, type))
1161 return -1;
1162
1163 update_vif_type_counter(adapter, curr_iftype, -1);
1164 update_vif_type_counter(adapter, type, +1);
1165 dev->ieee80211_ptr->iftype = type;
1166
1167 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1168 HostCmd_ACT_GEN_SET, 0, NULL, true))
1169 return -1;
1170 if (mwifiex_sta_init_cmd(priv, false, false))
1171 return -1;
1172
1173 return 0;
1174 }
1175
1176 static int
mwifiex_change_vif_to_ap(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,struct vif_params * params)1177 mwifiex_change_vif_to_ap(struct net_device *dev,
1178 enum nl80211_iftype curr_iftype,
1179 enum nl80211_iftype type,
1180 struct vif_params *params)
1181 {
1182 struct mwifiex_private *priv;
1183 struct mwifiex_adapter *adapter;
1184
1185 priv = mwifiex_netdev_get_priv(dev);
1186
1187 if (!priv)
1188 return -1;
1189
1190 adapter = priv->adapter;
1191
1192 mwifiex_dbg(adapter, INFO,
1193 "%s: changing role to AP\n", dev->name);
1194
1195 if (mwifiex_deinit_priv_params(priv))
1196 return -1;
1197 if (mwifiex_init_new_priv_params(priv, dev, type))
1198 return -1;
1199
1200 update_vif_type_counter(adapter, curr_iftype, -1);
1201 update_vif_type_counter(adapter, type, +1);
1202 dev->ieee80211_ptr->iftype = type;
1203
1204 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1205 HostCmd_ACT_GEN_SET, 0, NULL, true))
1206 return -1;
1207 if (mwifiex_sta_init_cmd(priv, false, false))
1208 return -1;
1209
1210 return 0;
1211 }
1212 /*
1213 * CFG802.11 operation handler to change interface type.
1214 */
1215 static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)1216 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1217 struct net_device *dev,
1218 enum nl80211_iftype type,
1219 struct vif_params *params)
1220 {
1221 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1222 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1223
1224 if (priv->scan_request) {
1225 mwifiex_dbg(priv->adapter, ERROR,
1226 "change virtual interface: scan in process\n");
1227 return -EBUSY;
1228 }
1229
1230 if (type == NL80211_IFTYPE_UNSPECIFIED) {
1231 mwifiex_dbg(priv->adapter, INFO,
1232 "%s: no new type specified, keeping old type %d\n",
1233 dev->name, curr_iftype);
1234 return 0;
1235 }
1236
1237 if (curr_iftype == type) {
1238 mwifiex_dbg(priv->adapter, INFO,
1239 "%s: interface already is of type %d\n",
1240 dev->name, curr_iftype);
1241 return 0;
1242 }
1243
1244 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) {
1245 mwifiex_dbg(priv->adapter, ERROR,
1246 "%s: change from type %d to %d is not allowed\n",
1247 dev->name, curr_iftype, type);
1248 return -EOPNOTSUPP;
1249 }
1250
1251 switch (curr_iftype) {
1252 case NL80211_IFTYPE_ADHOC:
1253 switch (type) {
1254 case NL80211_IFTYPE_STATION:
1255 priv->bss_mode = type;
1256 priv->sec_info.authentication_mode =
1257 NL80211_AUTHTYPE_OPEN_SYSTEM;
1258 dev->ieee80211_ptr->iftype = type;
1259 mwifiex_deauthenticate(priv, NULL);
1260 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1261 HostCmd_ACT_GEN_SET, 0, NULL,
1262 true);
1263 case NL80211_IFTYPE_P2P_CLIENT:
1264 case NL80211_IFTYPE_P2P_GO:
1265 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1266 type, params);
1267 case NL80211_IFTYPE_AP:
1268 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1269 params);
1270 default:
1271 goto errnotsupp;
1272 }
1273
1274 case NL80211_IFTYPE_STATION:
1275 switch (type) {
1276 case NL80211_IFTYPE_ADHOC:
1277 priv->bss_mode = type;
1278 priv->sec_info.authentication_mode =
1279 NL80211_AUTHTYPE_OPEN_SYSTEM;
1280 dev->ieee80211_ptr->iftype = type;
1281 mwifiex_deauthenticate(priv, NULL);
1282 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1283 HostCmd_ACT_GEN_SET, 0, NULL,
1284 true);
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 case NL80211_IFTYPE_AP:
1290 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1291 params);
1292 default:
1293 goto errnotsupp;
1294 }
1295
1296 case NL80211_IFTYPE_AP:
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 break;
1303 case NL80211_IFTYPE_P2P_CLIENT:
1304 case NL80211_IFTYPE_P2P_GO:
1305 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1306 type, params);
1307 default:
1308 goto errnotsupp;
1309 }
1310
1311 case NL80211_IFTYPE_P2P_CLIENT:
1312 if (mwifiex_cfg80211_deinit_p2p(priv))
1313 return -EFAULT;
1314
1315 switch (type) {
1316 case NL80211_IFTYPE_ADHOC:
1317 case NL80211_IFTYPE_STATION:
1318 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1319 type, params);
1320 case NL80211_IFTYPE_P2P_GO:
1321 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1322 type, params);
1323 case NL80211_IFTYPE_AP:
1324 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1325 params);
1326 default:
1327 goto errnotsupp;
1328 }
1329
1330 case NL80211_IFTYPE_P2P_GO:
1331 if (mwifiex_cfg80211_deinit_p2p(priv))
1332 return -EFAULT;
1333
1334 switch (type) {
1335 case NL80211_IFTYPE_ADHOC:
1336 case NL80211_IFTYPE_STATION:
1337 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1338 type, params);
1339 case NL80211_IFTYPE_P2P_CLIENT:
1340 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1341 type, params);
1342 case NL80211_IFTYPE_AP:
1343 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1344 params);
1345 default:
1346 goto errnotsupp;
1347 }
1348
1349 default:
1350 goto errnotsupp;
1351 }
1352
1353
1354 return 0;
1355
1356 errnotsupp:
1357 mwifiex_dbg(priv->adapter, ERROR,
1358 "unsupported interface type transition: %d to %d\n",
1359 curr_iftype, type);
1360 return -EOPNOTSUPP;
1361 }
1362
1363 static void
mwifiex_parse_htinfo(struct mwifiex_private * priv,u8 rateinfo,u8 htinfo,struct rate_info * rate)1364 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1365 struct rate_info *rate)
1366 {
1367 struct mwifiex_adapter *adapter = priv->adapter;
1368
1369 if (adapter->is_hw_11ac_capable) {
1370 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1371 if (htinfo & BIT(0)) {
1372 /* HT */
1373 rate->mcs = rateinfo;
1374 rate->flags |= RATE_INFO_FLAGS_MCS;
1375 }
1376 if (htinfo & BIT(1)) {
1377 /* VHT */
1378 rate->mcs = rateinfo & 0x0F;
1379 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1380 }
1381
1382 if (htinfo & (BIT(1) | BIT(0))) {
1383 /* HT or VHT */
1384 switch (htinfo & (BIT(3) | BIT(2))) {
1385 case 0:
1386 rate->bw = RATE_INFO_BW_20;
1387 break;
1388 case (BIT(2)):
1389 rate->bw = RATE_INFO_BW_40;
1390 break;
1391 case (BIT(3)):
1392 rate->bw = RATE_INFO_BW_80;
1393 break;
1394 case (BIT(3) | BIT(2)):
1395 rate->bw = RATE_INFO_BW_160;
1396 break;
1397 }
1398
1399 if (htinfo & BIT(4))
1400 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1401
1402 if ((rateinfo >> 4) == 1)
1403 rate->nss = 2;
1404 else
1405 rate->nss = 1;
1406 }
1407 } else {
1408 /*
1409 * Bit 0 in htinfo indicates that current rate is 11n. Valid
1410 * MCS index values for us are 0 to 15.
1411 */
1412 if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1413 rate->mcs = rateinfo;
1414 rate->flags |= RATE_INFO_FLAGS_MCS;
1415 rate->bw = RATE_INFO_BW_20;
1416 if (htinfo & BIT(1))
1417 rate->bw = RATE_INFO_BW_40;
1418 if (htinfo & BIT(2))
1419 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1420 }
1421 }
1422
1423 /* Decode legacy rates for non-HT. */
1424 if (!(htinfo & (BIT(0) | BIT(1)))) {
1425 /* Bitrates in multiples of 100kb/s. */
1426 static const int legacy_rates[] = {
1427 [0] = 10,
1428 [1] = 20,
1429 [2] = 55,
1430 [3] = 110,
1431 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1432 [5] = 60,
1433 [6] = 90,
1434 [7] = 120,
1435 [8] = 180,
1436 [9] = 240,
1437 [10] = 360,
1438 [11] = 480,
1439 [12] = 540,
1440 };
1441 if (rateinfo < ARRAY_SIZE(legacy_rates))
1442 rate->legacy = legacy_rates[rateinfo];
1443 }
1444 }
1445
1446 /*
1447 * This function dumps the station information on a buffer.
1448 *
1449 * The following information are shown -
1450 * - Total bytes transmitted
1451 * - Total bytes received
1452 * - Total packets transmitted
1453 * - Total packets received
1454 * - Signal quality level
1455 * - Transmission rate
1456 */
1457 static int
mwifiex_dump_station_info(struct mwifiex_private * priv,struct mwifiex_sta_node * node,struct station_info * sinfo)1458 mwifiex_dump_station_info(struct mwifiex_private *priv,
1459 struct mwifiex_sta_node *node,
1460 struct station_info *sinfo)
1461 {
1462 u32 rate;
1463
1464 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1465 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1466 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1467 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1468
1469 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1470 if (!node)
1471 return -ENOENT;
1472
1473 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1474 BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1475 sinfo->inactive_time =
1476 jiffies_to_msecs(jiffies - node->stats.last_rx);
1477
1478 sinfo->signal = node->stats.rssi;
1479 sinfo->signal_avg = node->stats.rssi;
1480 sinfo->rx_bytes = node->stats.rx_bytes;
1481 sinfo->tx_bytes = node->stats.tx_bytes;
1482 sinfo->rx_packets = node->stats.rx_packets;
1483 sinfo->tx_packets = node->stats.tx_packets;
1484 sinfo->tx_failed = node->stats.tx_failed;
1485
1486 mwifiex_parse_htinfo(priv, priv->tx_rate,
1487 node->stats.last_tx_htinfo,
1488 &sinfo->txrate);
1489 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1490
1491 return 0;
1492 }
1493
1494 /* Get signal information from the firmware */
1495 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1496 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1497 mwifiex_dbg(priv->adapter, ERROR,
1498 "failed to get signal information\n");
1499 return -EFAULT;
1500 }
1501
1502 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1503 mwifiex_dbg(priv->adapter, ERROR,
1504 "getting data rate error\n");
1505 return -EFAULT;
1506 }
1507
1508 /* Get DTIM period information from firmware */
1509 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1510 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1511 &priv->dtim_period, true);
1512
1513 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1514 &sinfo->txrate);
1515
1516 sinfo->signal_avg = priv->bcn_rssi_avg;
1517 sinfo->rx_bytes = priv->stats.rx_bytes;
1518 sinfo->tx_bytes = priv->stats.tx_bytes;
1519 sinfo->rx_packets = priv->stats.rx_packets;
1520 sinfo->tx_packets = priv->stats.tx_packets;
1521 sinfo->signal = priv->bcn_rssi_avg;
1522 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1523 sinfo->txrate.legacy = rate * 5;
1524
1525 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1526 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1527 &sinfo->rxrate);
1528
1529 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1530 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1531 sinfo->bss_param.flags = 0;
1532 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1533 WLAN_CAPABILITY_SHORT_PREAMBLE)
1534 sinfo->bss_param.flags |=
1535 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1536 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1537 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1538 sinfo->bss_param.flags |=
1539 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1540 sinfo->bss_param.dtim_period = priv->dtim_period;
1541 sinfo->bss_param.beacon_interval =
1542 priv->curr_bss_params.bss_descriptor.beacon_period;
1543 }
1544
1545 return 0;
1546 }
1547
1548 /*
1549 * CFG802.11 operation handler to get station information.
1550 *
1551 * This function only works in connected mode, and dumps the
1552 * requested station information, if available.
1553 */
1554 static int
mwifiex_cfg80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)1555 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1556 const u8 *mac, struct station_info *sinfo)
1557 {
1558 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1559
1560 if (!priv->media_connected)
1561 return -ENOENT;
1562 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1563 return -ENOENT;
1564
1565 return mwifiex_dump_station_info(priv, NULL, sinfo);
1566 }
1567
1568 /*
1569 * CFG802.11 operation handler to dump station information.
1570 */
1571 static int
mwifiex_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)1572 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1573 int idx, u8 *mac, struct station_info *sinfo)
1574 {
1575 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1576 struct mwifiex_sta_node *node;
1577 int i;
1578
1579 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1580 priv->media_connected && idx == 0) {
1581 ether_addr_copy(mac, priv->cfg_bssid);
1582 return mwifiex_dump_station_info(priv, NULL, sinfo);
1583 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1584 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1585 HostCmd_ACT_GEN_GET, 0, NULL, true);
1586
1587 i = 0;
1588 list_for_each_entry(node, &priv->sta_list, list) {
1589 if (i++ != idx)
1590 continue;
1591 ether_addr_copy(mac, node->mac_addr);
1592 return mwifiex_dump_station_info(priv, node, sinfo);
1593 }
1594 }
1595
1596 return -ENOENT;
1597 }
1598
1599 static int
mwifiex_cfg80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)1600 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1601 int idx, struct survey_info *survey)
1602 {
1603 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1604 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1605 enum nl80211_band band;
1606
1607 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1608
1609 memset(survey, 0, sizeof(struct survey_info));
1610
1611 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1612 priv->media_connected && idx == 0) {
1613 u8 curr_bss_band = priv->curr_bss_params.band;
1614 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1615
1616 band = mwifiex_band_to_radio_type(curr_bss_band);
1617 survey->channel = ieee80211_get_channel(wiphy,
1618 ieee80211_channel_to_frequency(chan, band));
1619
1620 if (priv->bcn_nf_last) {
1621 survey->filled = SURVEY_INFO_NOISE_DBM;
1622 survey->noise = priv->bcn_nf_last;
1623 }
1624 return 0;
1625 }
1626
1627 if (idx >= priv->adapter->num_in_chan_stats)
1628 return -ENOENT;
1629
1630 if (!pchan_stats[idx].cca_scan_dur)
1631 return 0;
1632
1633 band = pchan_stats[idx].bandcfg;
1634 survey->channel = ieee80211_get_channel(wiphy,
1635 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1636 survey->filled = SURVEY_INFO_NOISE_DBM |
1637 SURVEY_INFO_TIME |
1638 SURVEY_INFO_TIME_BUSY;
1639 survey->noise = pchan_stats[idx].noise;
1640 survey->time = pchan_stats[idx].cca_scan_dur;
1641 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1642
1643 return 0;
1644 }
1645
1646 /* Supported rates to be advertised to the cfg80211 */
1647 static struct ieee80211_rate mwifiex_rates[] = {
1648 {.bitrate = 10, .hw_value = 2, },
1649 {.bitrate = 20, .hw_value = 4, },
1650 {.bitrate = 55, .hw_value = 11, },
1651 {.bitrate = 110, .hw_value = 22, },
1652 {.bitrate = 60, .hw_value = 12, },
1653 {.bitrate = 90, .hw_value = 18, },
1654 {.bitrate = 120, .hw_value = 24, },
1655 {.bitrate = 180, .hw_value = 36, },
1656 {.bitrate = 240, .hw_value = 48, },
1657 {.bitrate = 360, .hw_value = 72, },
1658 {.bitrate = 480, .hw_value = 96, },
1659 {.bitrate = 540, .hw_value = 108, },
1660 };
1661
1662 /* Channel definitions to be advertised to cfg80211 */
1663 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1664 {.center_freq = 2412, .hw_value = 1, },
1665 {.center_freq = 2417, .hw_value = 2, },
1666 {.center_freq = 2422, .hw_value = 3, },
1667 {.center_freq = 2427, .hw_value = 4, },
1668 {.center_freq = 2432, .hw_value = 5, },
1669 {.center_freq = 2437, .hw_value = 6, },
1670 {.center_freq = 2442, .hw_value = 7, },
1671 {.center_freq = 2447, .hw_value = 8, },
1672 {.center_freq = 2452, .hw_value = 9, },
1673 {.center_freq = 2457, .hw_value = 10, },
1674 {.center_freq = 2462, .hw_value = 11, },
1675 {.center_freq = 2467, .hw_value = 12, },
1676 {.center_freq = 2472, .hw_value = 13, },
1677 {.center_freq = 2484, .hw_value = 14, },
1678 };
1679
1680 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1681 .channels = mwifiex_channels_2ghz,
1682 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1683 .bitrates = mwifiex_rates,
1684 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1685 };
1686
1687 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1688 {.center_freq = 5040, .hw_value = 8, },
1689 {.center_freq = 5060, .hw_value = 12, },
1690 {.center_freq = 5080, .hw_value = 16, },
1691 {.center_freq = 5170, .hw_value = 34, },
1692 {.center_freq = 5190, .hw_value = 38, },
1693 {.center_freq = 5210, .hw_value = 42, },
1694 {.center_freq = 5230, .hw_value = 46, },
1695 {.center_freq = 5180, .hw_value = 36, },
1696 {.center_freq = 5200, .hw_value = 40, },
1697 {.center_freq = 5220, .hw_value = 44, },
1698 {.center_freq = 5240, .hw_value = 48, },
1699 {.center_freq = 5260, .hw_value = 52, },
1700 {.center_freq = 5280, .hw_value = 56, },
1701 {.center_freq = 5300, .hw_value = 60, },
1702 {.center_freq = 5320, .hw_value = 64, },
1703 {.center_freq = 5500, .hw_value = 100, },
1704 {.center_freq = 5520, .hw_value = 104, },
1705 {.center_freq = 5540, .hw_value = 108, },
1706 {.center_freq = 5560, .hw_value = 112, },
1707 {.center_freq = 5580, .hw_value = 116, },
1708 {.center_freq = 5600, .hw_value = 120, },
1709 {.center_freq = 5620, .hw_value = 124, },
1710 {.center_freq = 5640, .hw_value = 128, },
1711 {.center_freq = 5660, .hw_value = 132, },
1712 {.center_freq = 5680, .hw_value = 136, },
1713 {.center_freq = 5700, .hw_value = 140, },
1714 {.center_freq = 5745, .hw_value = 149, },
1715 {.center_freq = 5765, .hw_value = 153, },
1716 {.center_freq = 5785, .hw_value = 157, },
1717 {.center_freq = 5805, .hw_value = 161, },
1718 {.center_freq = 5825, .hw_value = 165, },
1719 };
1720
1721 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1722 .channels = mwifiex_channels_5ghz,
1723 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1724 .bitrates = mwifiex_rates + 4,
1725 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1726 };
1727
1728
1729 /* Supported crypto cipher suits to be advertised to cfg80211 */
1730 static const u32 mwifiex_cipher_suites[] = {
1731 WLAN_CIPHER_SUITE_WEP40,
1732 WLAN_CIPHER_SUITE_WEP104,
1733 WLAN_CIPHER_SUITE_TKIP,
1734 WLAN_CIPHER_SUITE_CCMP,
1735 WLAN_CIPHER_SUITE_SMS4,
1736 WLAN_CIPHER_SUITE_AES_CMAC,
1737 };
1738
1739 /* Supported mgmt frame types to be advertised to cfg80211 */
1740 static const struct ieee80211_txrx_stypes
1741 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1742 [NL80211_IFTYPE_STATION] = {
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 [NL80211_IFTYPE_AP] = {
1749 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1750 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1751 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1752 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1753 },
1754 [NL80211_IFTYPE_P2P_CLIENT] = {
1755 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1756 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1757 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1758 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1759 },
1760 [NL80211_IFTYPE_P2P_GO] = {
1761 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1762 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1763 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1764 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1765 },
1766 };
1767
1768 /*
1769 * CFG802.11 operation handler for setting bit rates.
1770 *
1771 * Function configures data rates to firmware using bitrate mask
1772 * provided by cfg80211.
1773 */
1774 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)1775 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1776 struct net_device *dev,
1777 unsigned int link_id,
1778 const u8 *peer,
1779 const struct cfg80211_bitrate_mask *mask)
1780 {
1781 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1782 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1783 enum nl80211_band band;
1784 struct mwifiex_adapter *adapter = priv->adapter;
1785
1786 if (!priv->media_connected) {
1787 mwifiex_dbg(adapter, ERROR,
1788 "Can not set Tx data rate in disconnected state\n");
1789 return -EINVAL;
1790 }
1791
1792 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1793
1794 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1795
1796 /* Fill HR/DSSS rates. */
1797 if (band == NL80211_BAND_2GHZ)
1798 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1799
1800 /* Fill OFDM rates */
1801 if (band == NL80211_BAND_2GHZ)
1802 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1803 else
1804 bitmap_rates[1] = mask->control[band].legacy;
1805
1806 /* Fill HT MCS rates */
1807 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1808 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1809 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1810
1811 /* Fill VHT MCS rates */
1812 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1813 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1814 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1815 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1816 }
1817
1818 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1819 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1820 }
1821
1822 /*
1823 * CFG802.11 operation handler for connection quality monitoring.
1824 *
1825 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1826 * events to FW.
1827 */
mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)1828 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1829 struct net_device *dev,
1830 s32 rssi_thold, u32 rssi_hyst)
1831 {
1832 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1833 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1834
1835 priv->cqm_rssi_thold = rssi_thold;
1836 priv->cqm_rssi_hyst = rssi_hyst;
1837
1838 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1839 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1840
1841 /* Subscribe/unsubscribe low and high rssi events */
1842 if (rssi_thold && rssi_hyst) {
1843 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1844 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1845 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1846 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1847 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1848 return mwifiex_send_cmd(priv,
1849 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1850 0, 0, &subsc_evt, true);
1851 } else {
1852 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1853 return mwifiex_send_cmd(priv,
1854 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1855 0, 0, &subsc_evt, true);
1856 }
1857
1858 return 0;
1859 }
1860
1861 /* cfg80211 operation handler for change_beacon.
1862 * Function retrieves and sets modified management IEs to FW.
1863 */
mwifiex_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_update * params)1864 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1865 struct net_device *dev,
1866 struct cfg80211_ap_update *params)
1867 {
1868 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1869 struct mwifiex_adapter *adapter = priv->adapter;
1870 struct cfg80211_beacon_data *data = ¶ms->beacon;
1871
1872 mwifiex_cancel_scan(adapter);
1873
1874 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1875 mwifiex_dbg(priv->adapter, ERROR,
1876 "%s: bss_type mismatched\n", __func__);
1877 return -EINVAL;
1878 }
1879
1880 if (!priv->bss_started) {
1881 mwifiex_dbg(priv->adapter, ERROR,
1882 "%s: bss not started\n", __func__);
1883 return -EINVAL;
1884 }
1885
1886 if (mwifiex_set_mgmt_ies(priv, data)) {
1887 mwifiex_dbg(priv->adapter, ERROR,
1888 "%s: setting mgmt ies failed\n", __func__);
1889 return -EFAULT;
1890 }
1891
1892 return 0;
1893 }
1894
1895 /* cfg80211 operation handler for del_station.
1896 * Function deauthenticates station which value is provided in mac parameter.
1897 * If mac is NULL/broadcast, all stations in associated station list are
1898 * deauthenticated. If bss is not started or there are no stations in
1899 * associated stations list, no action is taken.
1900 */
1901 static int
mwifiex_cfg80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1902 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1903 struct station_del_parameters *params)
1904 {
1905 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1906 struct mwifiex_sta_node *sta_node;
1907 u8 deauth_mac[ETH_ALEN];
1908
1909 if (!priv->bss_started && priv->wdev.links[0].cac_started) {
1910 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1911 mwifiex_abort_cac(priv);
1912 }
1913
1914 if (list_empty(&priv->sta_list) || !priv->bss_started)
1915 return 0;
1916
1917 if (!params->mac || is_broadcast_ether_addr(params->mac))
1918 return 0;
1919
1920 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1921 __func__, params->mac);
1922
1923 eth_zero_addr(deauth_mac);
1924
1925 spin_lock_bh(&priv->sta_list_spinlock);
1926 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1927 if (sta_node)
1928 ether_addr_copy(deauth_mac, params->mac);
1929 spin_unlock_bh(&priv->sta_list_spinlock);
1930
1931 if (is_valid_ether_addr(deauth_mac)) {
1932 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1933 HostCmd_ACT_GEN_SET, 0,
1934 deauth_mac, true))
1935 return -1;
1936 }
1937
1938 return 0;
1939 }
1940
1941 static int
mwifiex_cfg80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)1942 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1943 {
1944 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1945 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1946 MWIFIEX_BSS_ROLE_ANY);
1947 struct mwifiex_ds_ant_cfg ant_cfg;
1948
1949 if (!tx_ant || !rx_ant)
1950 return -EOPNOTSUPP;
1951
1952 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1953 /* Not a MIMO chip. User should provide specific antenna number
1954 * for Tx/Rx path or enable all antennas for diversity
1955 */
1956 if (tx_ant != rx_ant)
1957 return -EOPNOTSUPP;
1958
1959 if ((tx_ant & (tx_ant - 1)) &&
1960 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1961 return -EOPNOTSUPP;
1962
1963 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1964 (priv->adapter->number_of_antenna > 1)) {
1965 tx_ant = RF_ANTENNA_AUTO;
1966 rx_ant = RF_ANTENNA_AUTO;
1967 }
1968 } else {
1969 struct ieee80211_sta_ht_cap *ht_info;
1970 int rx_mcs_supp;
1971 enum nl80211_band band;
1972
1973 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1974 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1975 if (adapter->is_hw_11ac_capable)
1976 adapter->usr_dot_11ac_mcs_support =
1977 MWIFIEX_11AC_MCS_MAP_1X1;
1978 } else {
1979 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1980 if (adapter->is_hw_11ac_capable)
1981 adapter->usr_dot_11ac_mcs_support =
1982 MWIFIEX_11AC_MCS_MAP_2X2;
1983 }
1984
1985 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1986 if (!adapter->wiphy->bands[band])
1987 continue;
1988
1989 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1990 rx_mcs_supp =
1991 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1992 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1993 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1994 }
1995 }
1996
1997 ant_cfg.tx_ant = tx_ant;
1998 ant_cfg.rx_ant = rx_ant;
1999
2000 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
2001 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
2002 }
2003
2004 static int
mwifiex_cfg80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)2005 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2006 {
2007 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2008 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
2009 MWIFIEX_BSS_ROLE_ANY);
2010 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
2011 HostCmd_ACT_GEN_GET, 0, NULL, true);
2012
2013 *tx_ant = priv->tx_ant;
2014 *rx_ant = priv->rx_ant;
2015
2016 return 0;
2017 }
2018
2019 /* cfg80211 operation handler for stop ap.
2020 * Function stops BSS running at uAP interface.
2021 */
mwifiex_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)2022 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
2023 unsigned int link_id)
2024 {
2025 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2026
2027 mwifiex_abort_cac(priv);
2028
2029 if (mwifiex_del_mgmt_ies(priv))
2030 mwifiex_dbg(priv->adapter, ERROR,
2031 "Failed to delete mgmt IEs!\n");
2032
2033 priv->ap_11n_enabled = 0;
2034 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
2035
2036 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
2037 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2038 mwifiex_dbg(priv->adapter, ERROR,
2039 "Failed to stop the BSS\n");
2040 return -1;
2041 }
2042
2043 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
2044 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2045 mwifiex_dbg(priv->adapter, ERROR,
2046 "Failed to reset BSS\n");
2047 return -1;
2048 }
2049
2050 if (netif_carrier_ok(priv->netdev))
2051 netif_carrier_off(priv->netdev);
2052 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2053
2054 return 0;
2055 }
2056
2057 /* cfg80211 operation handler for start_ap.
2058 * Function sets beacon period, DTIM period, SSID and security into
2059 * AP config structure.
2060 * AP is configured with these settings and BSS is started.
2061 */
mwifiex_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)2062 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
2063 struct net_device *dev,
2064 struct cfg80211_ap_settings *params)
2065 {
2066 struct mwifiex_uap_bss_param *bss_cfg;
2067 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2068
2069 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
2070 return -1;
2071
2072 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
2073 if (!bss_cfg)
2074 return -ENOMEM;
2075
2076 mwifiex_set_sys_config_invalid_data(bss_cfg);
2077
2078 memcpy(bss_cfg->mac_addr, priv->curr_addr, ETH_ALEN);
2079
2080 if (params->beacon_interval)
2081 bss_cfg->beacon_period = params->beacon_interval;
2082 if (params->dtim_period)
2083 bss_cfg->dtim_period = params->dtim_period;
2084
2085 if (params->ssid && params->ssid_len) {
2086 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2087 bss_cfg->ssid.ssid_len = params->ssid_len;
2088 }
2089 if (params->inactivity_timeout > 0) {
2090 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2091 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2092 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2093 }
2094
2095 switch (params->hidden_ssid) {
2096 case NL80211_HIDDEN_SSID_NOT_IN_USE:
2097 bss_cfg->bcast_ssid_ctl = 1;
2098 break;
2099 case NL80211_HIDDEN_SSID_ZERO_LEN:
2100 bss_cfg->bcast_ssid_ctl = 0;
2101 break;
2102 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2103 bss_cfg->bcast_ssid_ctl = 2;
2104 break;
2105 default:
2106 kfree(bss_cfg);
2107 return -EINVAL;
2108 }
2109
2110 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2111 mwifiex_set_uap_rates(bss_cfg, params);
2112
2113 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2114 mwifiex_dbg(priv->adapter, ERROR,
2115 "Failed to parse security parameters!\n");
2116 goto out;
2117 }
2118
2119 mwifiex_set_ht_params(priv, bss_cfg, params);
2120
2121 if (priv->adapter->is_hw_11ac_capable) {
2122 mwifiex_set_vht_params(priv, bss_cfg, params);
2123 mwifiex_set_vht_width(priv, params->chandef.width,
2124 priv->ap_11ac_enabled);
2125 }
2126
2127 if (priv->ap_11ac_enabled)
2128 mwifiex_set_11ac_ba_params(priv);
2129 else
2130 mwifiex_set_ba_params(priv);
2131
2132 mwifiex_set_wmm_params(priv, bss_cfg, params);
2133
2134 if (mwifiex_is_11h_active(priv))
2135 mwifiex_set_tpc_params(priv, bss_cfg, params);
2136
2137 if (mwifiex_is_11h_active(priv) &&
2138 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef,
2139 priv->bss_mode)) {
2140 mwifiex_dbg(priv->adapter, INFO,
2141 "Disable 11h extensions in FW\n");
2142 if (mwifiex_11h_activate(priv, false)) {
2143 mwifiex_dbg(priv->adapter, ERROR,
2144 "Failed to disable 11h extensions!!");
2145 goto out;
2146 }
2147 priv->state_11h.is_11h_active = false;
2148 }
2149
2150 mwifiex_config_uap_11d(priv, ¶ms->beacon);
2151
2152 if (mwifiex_config_start_uap(priv, bss_cfg)) {
2153 mwifiex_dbg(priv->adapter, ERROR,
2154 "Failed to start AP\n");
2155 goto out;
2156 }
2157
2158 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon))
2159 goto out;
2160
2161 if (!netif_carrier_ok(priv->netdev))
2162 netif_carrier_on(priv->netdev);
2163 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2164
2165 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2166 kfree(bss_cfg);
2167 return 0;
2168
2169 out:
2170 kfree(bss_cfg);
2171 return -1;
2172 }
2173
2174 /*
2175 * CFG802.11 operation handler for disconnection request.
2176 *
2177 * This function does not work when there is already a disconnection
2178 * procedure going on.
2179 */
2180 static int
mwifiex_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)2181 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2182 u16 reason_code)
2183 {
2184 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2185
2186 if (!mwifiex_stop_bg_scan(priv))
2187 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2188
2189 if (mwifiex_deauthenticate(priv, NULL))
2190 return -EFAULT;
2191
2192 eth_zero_addr(priv->cfg_bssid);
2193 priv->hs2_enabled = false;
2194
2195 return 0;
2196 }
2197
2198 /*
2199 * This function informs the CFG802.11 subsystem of a new IBSS.
2200 *
2201 * The following information are sent to the CFG802.11 subsystem
2202 * to register the new IBSS. If we do not register the new IBSS,
2203 * a kernel panic will result.
2204 * - SSID
2205 * - SSID length
2206 * - BSSID
2207 * - Channel
2208 */
mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private * priv)2209 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2210 {
2211 struct ieee80211_channel *chan;
2212 struct mwifiex_bss_info bss_info;
2213 struct cfg80211_bss *bss;
2214 int ie_len;
2215 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2216 enum nl80211_band band;
2217
2218 if (mwifiex_get_bss_info(priv, &bss_info))
2219 return -1;
2220
2221 ie_buf[0] = WLAN_EID_SSID;
2222 ie_buf[1] = bss_info.ssid.ssid_len;
2223
2224 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2225 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2226 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2227
2228 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2229 chan = ieee80211_get_channel(priv->wdev.wiphy,
2230 ieee80211_channel_to_frequency(bss_info.bss_chan,
2231 band));
2232
2233 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2234 CFG80211_BSS_FTYPE_UNKNOWN,
2235 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2236 0, ie_buf, ie_len, 0, GFP_KERNEL);
2237 if (bss) {
2238 cfg80211_put_bss(priv->wdev.wiphy, bss);
2239 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2240 }
2241
2242 return 0;
2243 }
2244
2245 /*
2246 * This function connects with a BSS.
2247 *
2248 * This function handles both Infra and Ad-Hoc modes. It also performs
2249 * validity checking on the provided parameters, disconnects from the
2250 * current BSS (if any), sets up the association/scan parameters,
2251 * including security settings, and performs specific SSID scan before
2252 * trying to connect.
2253 *
2254 * For Infra mode, the function returns failure if the specified SSID
2255 * is not found in scan table. However, for Ad-Hoc mode, it can create
2256 * the IBSS if it does not exist. On successful completion in either case,
2257 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2258 */
2259 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)2260 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2261 const u8 *ssid, const u8 *bssid, int mode,
2262 struct ieee80211_channel *channel,
2263 struct cfg80211_connect_params *sme, bool privacy,
2264 struct cfg80211_bss **sel_bss)
2265 {
2266 struct cfg80211_ssid req_ssid;
2267 int ret, auth_type = 0;
2268 struct cfg80211_bss *bss = NULL;
2269 u8 is_scanning_required = 0;
2270
2271 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2272
2273 req_ssid.ssid_len = ssid_len;
2274 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2275 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2276 return -EINVAL;
2277 }
2278
2279 memcpy(req_ssid.ssid, ssid, ssid_len);
2280 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2281 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2282 return -EINVAL;
2283 }
2284
2285 /* As this is new association, clear locally stored
2286 * keys and security related flags */
2287 priv->sec_info.wpa_enabled = false;
2288 priv->sec_info.wpa2_enabled = false;
2289 priv->wep_key_curr_index = 0;
2290 priv->sec_info.encryption_mode = 0;
2291 priv->sec_info.is_authtype_auto = 0;
2292 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2293
2294 if (mode == NL80211_IFTYPE_ADHOC) {
2295 u16 enable = true;
2296
2297 /* set ibss coalescing_status */
2298 ret = mwifiex_send_cmd(
2299 priv,
2300 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2301 HostCmd_ACT_GEN_SET, 0, &enable, true);
2302 if (ret)
2303 return ret;
2304
2305 /* "privacy" is set only for ad-hoc mode */
2306 if (privacy) {
2307 /*
2308 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2309 * the firmware can find a matching network from the
2310 * scan. The cfg80211 does not give us the encryption
2311 * mode at this stage so just setting it to WEP here.
2312 */
2313 priv->sec_info.encryption_mode =
2314 WLAN_CIPHER_SUITE_WEP104;
2315 priv->sec_info.authentication_mode =
2316 NL80211_AUTHTYPE_OPEN_SYSTEM;
2317 }
2318
2319 goto done;
2320 }
2321
2322 /* Now handle infra mode. "sme" is valid for infra mode only */
2323 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2324 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2325 priv->sec_info.is_authtype_auto = 1;
2326 } else {
2327 auth_type = sme->auth_type;
2328 }
2329
2330 if (sme->crypto.n_ciphers_pairwise) {
2331 priv->sec_info.encryption_mode =
2332 sme->crypto.ciphers_pairwise[0];
2333 priv->sec_info.authentication_mode = auth_type;
2334 }
2335
2336 if (sme->crypto.cipher_group) {
2337 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2338 priv->sec_info.authentication_mode = auth_type;
2339 }
2340 if (sme->ie)
2341 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2342
2343 if (sme->key) {
2344 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2345 mwifiex_dbg(priv->adapter, INFO,
2346 "info: setting wep encryption\t"
2347 "with key len %d\n", sme->key_len);
2348 priv->wep_key_curr_index = sme->key_idx;
2349 ret = mwifiex_set_encode(priv, NULL, sme->key,
2350 sme->key_len, sme->key_idx,
2351 NULL, 0);
2352 }
2353 }
2354 done:
2355 /*
2356 * Scan entries are valid for some time (15 sec). So we can save one
2357 * active scan time if we just try cfg80211_get_bss first. If it fails
2358 * then request scan and cfg80211_get_bss() again for final output.
2359 */
2360 while (1) {
2361 if (is_scanning_required) {
2362 /* Do specific SSID scanning */
2363 if (mwifiex_request_scan(priv, &req_ssid)) {
2364 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2365 return -EFAULT;
2366 }
2367 }
2368
2369 /* Find the BSS we want using available scan results */
2370 if (mode == NL80211_IFTYPE_ADHOC)
2371 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2372 bssid, ssid, ssid_len,
2373 IEEE80211_BSS_TYPE_IBSS,
2374 IEEE80211_PRIVACY_ANY);
2375 else
2376 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2377 bssid, ssid, ssid_len,
2378 IEEE80211_BSS_TYPE_ESS,
2379 IEEE80211_PRIVACY_ANY);
2380
2381 if (!bss) {
2382 if (is_scanning_required) {
2383 mwifiex_dbg(priv->adapter, MSG,
2384 "assoc: requested bss not found in scan results\n");
2385 break;
2386 }
2387 is_scanning_required = 1;
2388 } else {
2389 mwifiex_dbg(priv->adapter, MSG,
2390 "info: trying to associate to bssid %pM\n",
2391 bss->bssid);
2392 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2393 break;
2394 }
2395 }
2396
2397 if (bss)
2398 cfg80211_ref_bss(priv->adapter->wiphy, bss);
2399
2400 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2401 if (ret)
2402 goto cleanup;
2403
2404 if (mode == NL80211_IFTYPE_ADHOC) {
2405 /* Inform the BSS information to kernel, otherwise
2406 * kernel will give a panic after successful assoc */
2407 if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2408 ret = -EFAULT;
2409 goto cleanup;
2410 }
2411 }
2412
2413 /* Pass the selected BSS entry to caller. */
2414 if (sel_bss) {
2415 *sel_bss = bss;
2416 bss = NULL;
2417 }
2418
2419 cleanup:
2420 if (bss)
2421 cfg80211_put_bss(priv->adapter->wiphy, bss);
2422 return ret;
2423 }
2424
2425 /*
2426 * CFG802.11 operation handler for association request.
2427 *
2428 * This function does not work when the current mode is set to Ad-Hoc, or
2429 * when there is already an association procedure going on. The given BSS
2430 * information is used to associate.
2431 */
2432 static int
mwifiex_cfg80211_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)2433 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2434 struct cfg80211_connect_params *sme)
2435 {
2436 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2437 struct mwifiex_adapter *adapter = priv->adapter;
2438 struct cfg80211_bss *bss = NULL;
2439 int ret;
2440
2441 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2442 mwifiex_dbg(adapter, ERROR,
2443 "%s: reject infra assoc request in non-STA role\n",
2444 dev->name);
2445 return -EINVAL;
2446 }
2447
2448 if (priv->wdev.connected) {
2449 mwifiex_dbg(adapter, ERROR,
2450 "%s: already connected\n", dev->name);
2451 return -EALREADY;
2452 }
2453
2454 if (priv->scan_block)
2455 priv->scan_block = false;
2456
2457 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2458 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2459 mwifiex_dbg(adapter, ERROR,
2460 "%s: Ignore connection.\t"
2461 "Card removed or FW in bad state\n",
2462 dev->name);
2463 return -EFAULT;
2464 }
2465
2466 mwifiex_dbg(adapter, INFO,
2467 "info: Trying to associate to bssid %pM\n", sme->bssid);
2468
2469 if (!mwifiex_stop_bg_scan(priv))
2470 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2471
2472 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2473 priv->bss_mode, sme->channel, sme, 0,
2474 &bss);
2475 if (!ret) {
2476 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2477 0, NULL, 0, WLAN_STATUS_SUCCESS,
2478 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2479 mwifiex_dbg(priv->adapter, MSG,
2480 "info: associated to bssid %pM successfully\n",
2481 priv->cfg_bssid);
2482 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2483 priv->adapter->auto_tdls &&
2484 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2485 mwifiex_setup_auto_tdls_timer(priv);
2486 } else {
2487 mwifiex_dbg(priv->adapter, ERROR,
2488 "info: association to bssid %pM failed\n",
2489 priv->cfg_bssid);
2490 eth_zero_addr(priv->cfg_bssid);
2491
2492 if (ret > 0)
2493 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2494 NULL, 0, NULL, 0, ret,
2495 GFP_KERNEL);
2496 else
2497 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2498 NULL, 0, NULL, 0,
2499 WLAN_STATUS_UNSPECIFIED_FAILURE,
2500 GFP_KERNEL);
2501 }
2502
2503 return 0;
2504 }
2505
2506 /*
2507 * This function sets following parameters for ibss network.
2508 * - channel
2509 * - start band
2510 * - 11n flag
2511 * - secondary channel offset
2512 */
mwifiex_set_ibss_params(struct mwifiex_private * priv,struct cfg80211_ibss_params * params)2513 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2514 struct cfg80211_ibss_params *params)
2515 {
2516 struct mwifiex_adapter *adapter = priv->adapter;
2517 int index = 0, i;
2518 u8 config_bands = 0;
2519
2520 if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2521 if (!params->basic_rates) {
2522 config_bands = BAND_B | BAND_G;
2523 } else {
2524 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2525 /*
2526 * Rates below 6 Mbps in the table are CCK
2527 * rates; 802.11b and from 6 they are OFDM;
2528 * 802.11G
2529 */
2530 if (mwifiex_rates[i].bitrate == 60) {
2531 index = 1 << i;
2532 break;
2533 }
2534 }
2535
2536 if (params->basic_rates < index) {
2537 config_bands = BAND_B;
2538 } else {
2539 config_bands = BAND_G;
2540 if (params->basic_rates % index)
2541 config_bands |= BAND_B;
2542 }
2543 }
2544
2545 if (cfg80211_get_chandef_type(¶ms->chandef) !=
2546 NL80211_CHAN_NO_HT)
2547 config_bands |= BAND_G | BAND_GN;
2548 } else {
2549 if (cfg80211_get_chandef_type(¶ms->chandef) ==
2550 NL80211_CHAN_NO_HT)
2551 config_bands = BAND_A;
2552 else
2553 config_bands = BAND_AN | BAND_A;
2554 }
2555
2556 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2557 adapter->config_bands = config_bands;
2558 adapter->adhoc_start_band = config_bands;
2559
2560 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2561 adapter->adhoc_11n_enabled = true;
2562 else
2563 adapter->adhoc_11n_enabled = false;
2564 }
2565
2566 adapter->sec_chan_offset =
2567 mwifiex_chan_type_to_sec_chan_offset(
2568 cfg80211_get_chandef_type(¶ms->chandef));
2569 priv->adhoc_channel = ieee80211_frequency_to_channel(
2570 params->chandef.chan->center_freq);
2571
2572 mwifiex_dbg(adapter, INFO,
2573 "info: set ibss band %d, chan %d, chan offset %d\n",
2574 config_bands, priv->adhoc_channel,
2575 adapter->sec_chan_offset);
2576
2577 return 0;
2578 }
2579
2580 /*
2581 * CFG802.11 operation handler to join an IBSS.
2582 *
2583 * This function does not work in any mode other than Ad-Hoc, or if
2584 * a join operation is already in progress.
2585 */
2586 static int
mwifiex_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2587 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2588 struct cfg80211_ibss_params *params)
2589 {
2590 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2591 int ret = 0;
2592
2593 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2594 mwifiex_dbg(priv->adapter, ERROR,
2595 "request to join ibss received\t"
2596 "when station is not in ibss mode\n");
2597 goto done;
2598 }
2599
2600 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2601 params->bssid);
2602
2603 mwifiex_set_ibss_params(priv, params);
2604
2605 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2606 params->bssid, priv->bss_mode,
2607 params->chandef.chan, NULL,
2608 params->privacy, NULL);
2609 done:
2610 if (!ret) {
2611 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2612 params->chandef.chan, GFP_KERNEL);
2613 mwifiex_dbg(priv->adapter, MSG,
2614 "info: joined/created adhoc network with bssid\t"
2615 "%pM successfully\n", priv->cfg_bssid);
2616 } else {
2617 mwifiex_dbg(priv->adapter, ERROR,
2618 "info: failed creating/joining adhoc network\n");
2619 }
2620
2621 return ret;
2622 }
2623
2624 /*
2625 * CFG802.11 operation handler to leave an IBSS.
2626 *
2627 * This function does not work if a leave operation is
2628 * already in progress.
2629 */
2630 static int
mwifiex_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2631 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2632 {
2633 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2634
2635 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2636 priv->cfg_bssid);
2637 if (mwifiex_deauthenticate(priv, NULL))
2638 return -EFAULT;
2639
2640 eth_zero_addr(priv->cfg_bssid);
2641
2642 return 0;
2643 }
2644
2645 /*
2646 * CFG802.11 operation handler for scan request.
2647 *
2648 * This function issues a scan request to the firmware based upon
2649 * the user specified scan configuration. On successful completion,
2650 * it also informs the results.
2651 */
2652 static int
mwifiex_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)2653 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2654 struct cfg80211_scan_request *request)
2655 {
2656 struct net_device *dev = request->wdev->netdev;
2657 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2658 int i, offset, ret;
2659 struct ieee80211_channel *chan;
2660 struct ieee_types_header *ie;
2661 struct mwifiex_user_scan_cfg *user_scan_cfg;
2662 u8 mac_addr[ETH_ALEN];
2663
2664 mwifiex_dbg(priv->adapter, CMD,
2665 "info: received scan request on %s\n", dev->name);
2666
2667 /* Block scan request if scan operation or scan cleanup when interface
2668 * is disabled is in process
2669 */
2670 if (priv->scan_request || priv->scan_aborting) {
2671 mwifiex_dbg(priv->adapter, WARN,
2672 "cmd: Scan already in process..\n");
2673 return -EBUSY;
2674 }
2675
2676 if (!priv->wdev.connected && priv->scan_block)
2677 priv->scan_block = false;
2678
2679 if (!mwifiex_stop_bg_scan(priv))
2680 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2681
2682 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2683 if (!user_scan_cfg)
2684 return -ENOMEM;
2685
2686 priv->scan_request = request;
2687
2688 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2689 get_random_mask_addr(mac_addr, request->mac_addr,
2690 request->mac_addr_mask);
2691 ether_addr_copy(request->mac_addr, mac_addr);
2692 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2693 }
2694
2695 user_scan_cfg->num_ssids = request->n_ssids;
2696 user_scan_cfg->ssid_list = request->ssids;
2697
2698 if (request->ie && request->ie_len) {
2699 offset = 0;
2700 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2701 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2702 continue;
2703 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2704 ie = (struct ieee_types_header *)(request->ie + offset);
2705 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2706 offset += sizeof(*ie) + ie->len;
2707
2708 if (offset >= request->ie_len)
2709 break;
2710 }
2711 }
2712
2713 for (i = 0; i < min_t(u32, request->n_channels,
2714 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2715 chan = request->channels[i];
2716 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2717 user_scan_cfg->chan_list[i].radio_type = chan->band;
2718
2719 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2720 user_scan_cfg->chan_list[i].scan_type =
2721 MWIFIEX_SCAN_TYPE_PASSIVE;
2722 else
2723 user_scan_cfg->chan_list[i].scan_type =
2724 MWIFIEX_SCAN_TYPE_ACTIVE;
2725
2726 user_scan_cfg->chan_list[i].scan_time = 0;
2727 }
2728
2729 if (priv->adapter->scan_chan_gap_enabled &&
2730 mwifiex_is_any_intf_active(priv))
2731 user_scan_cfg->scan_chan_gap =
2732 priv->adapter->scan_chan_gap_time;
2733
2734 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2735 kfree(user_scan_cfg);
2736 if (ret) {
2737 mwifiex_dbg(priv->adapter, ERROR,
2738 "scan failed: %d\n", ret);
2739 priv->scan_aborting = false;
2740 priv->scan_request = NULL;
2741 return ret;
2742 }
2743
2744 if (request->ie && request->ie_len) {
2745 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2746 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2747 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2748 memset(&priv->vs_ie[i].ie, 0,
2749 MWIFIEX_MAX_VSIE_LEN);
2750 }
2751 }
2752 }
2753 return 0;
2754 }
2755
2756 /* CFG802.11 operation handler for sched_scan_start.
2757 *
2758 * This function issues a bgscan config request to the firmware based upon
2759 * the user specified sched_scan configuration. On successful completion,
2760 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2761 * query command to get sched_scan results from firmware.
2762 */
2763 static int
mwifiex_cfg80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * request)2764 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2765 struct net_device *dev,
2766 struct cfg80211_sched_scan_request *request)
2767 {
2768 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2769 int i, offset;
2770 struct ieee80211_channel *chan;
2771 struct mwifiex_bg_scan_cfg *bgscan_cfg;
2772 struct ieee_types_header *ie;
2773
2774 if (!request || (!request->n_ssids && !request->n_match_sets)) {
2775 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2776 __func__);
2777 return -EINVAL;
2778 }
2779
2780 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2781 request->n_ssids, request->n_match_sets);
2782 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2783 request->n_channels, request->scan_plans->interval,
2784 (int)request->ie_len);
2785
2786 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2787 if (!bgscan_cfg)
2788 return -ENOMEM;
2789
2790 if (priv->scan_request || priv->scan_aborting)
2791 bgscan_cfg->start_later = true;
2792
2793 bgscan_cfg->num_ssids = request->n_match_sets;
2794 bgscan_cfg->ssid_list = request->match_sets;
2795
2796 if (request->ie && request->ie_len) {
2797 offset = 0;
2798 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2799 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2800 continue;
2801 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2802 ie = (struct ieee_types_header *)(request->ie + offset);
2803 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2804 offset += sizeof(*ie) + ie->len;
2805
2806 if (offset >= request->ie_len)
2807 break;
2808 }
2809 }
2810
2811 for (i = 0; i < min_t(u32, request->n_channels,
2812 MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2813 chan = request->channels[i];
2814 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2815 bgscan_cfg->chan_list[i].radio_type = chan->band;
2816
2817 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2818 bgscan_cfg->chan_list[i].scan_type =
2819 MWIFIEX_SCAN_TYPE_PASSIVE;
2820 else
2821 bgscan_cfg->chan_list[i].scan_type =
2822 MWIFIEX_SCAN_TYPE_ACTIVE;
2823
2824 bgscan_cfg->chan_list[i].scan_time = 0;
2825 }
2826
2827 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2828 MWIFIEX_BG_SCAN_CHAN_MAX);
2829
2830 /* Use at least 15 second for per scan cycle */
2831 bgscan_cfg->scan_interval = (request->scan_plans->interval >
2832 MWIFIEX_BGSCAN_INTERVAL) ?
2833 request->scan_plans->interval :
2834 MWIFIEX_BGSCAN_INTERVAL;
2835
2836 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2837 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2838 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2839 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2840 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2841 bgscan_cfg->enable = true;
2842 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2843 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2844 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2845 }
2846
2847 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2848 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2849 kfree(bgscan_cfg);
2850 return -EFAULT;
2851 }
2852
2853 priv->sched_scanning = true;
2854
2855 kfree(bgscan_cfg);
2856 return 0;
2857 }
2858
2859 /* CFG802.11 operation handler for sched_scan_stop.
2860 *
2861 * This function issues a bgscan config command to disable
2862 * previous bgscan configuration in the firmware
2863 */
mwifiex_cfg80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2864 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2865 struct net_device *dev, u64 reqid)
2866 {
2867 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2868
2869 wiphy_info(wiphy, "sched scan stop!");
2870 mwifiex_stop_bg_scan(priv);
2871
2872 return 0;
2873 }
2874
mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap * vht_info,struct mwifiex_private * priv)2875 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2876 struct mwifiex_private *priv)
2877 {
2878 struct mwifiex_adapter *adapter = priv->adapter;
2879
2880 vht_info->vht_supported = true;
2881
2882 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2883 /* Update MCS support for VHT */
2884 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2885 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2886 vht_info->vht_mcs.rx_highest = 0;
2887 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2888 adapter->hw_dot_11ac_mcs_support >> 16);
2889 vht_info->vht_mcs.tx_highest = 0;
2890 }
2891
2892 /*
2893 * This function sets up the CFG802.11 specific HT capability fields
2894 * with default values.
2895 *
2896 * The following default values are set -
2897 * - HT Supported = True
2898 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2899 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2900 * - HT Capabilities supported by firmware
2901 * - MCS information, Rx mask = 0xff
2902 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2903 */
2904 static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap * ht_info,struct mwifiex_private * priv)2905 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2906 struct mwifiex_private *priv)
2907 {
2908 int rx_mcs_supp;
2909 struct ieee80211_mcs_info mcs_set;
2910 u8 *mcs = (u8 *)&mcs_set;
2911 struct mwifiex_adapter *adapter = priv->adapter;
2912
2913 ht_info->ht_supported = true;
2914 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2915 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2916
2917 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2918
2919 /* Fill HT capability information */
2920 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2921 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2922 else
2923 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2924
2925 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2926 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2927 else
2928 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2929
2930 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2931 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2932 else
2933 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2934
2935 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2936 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2937 else
2938 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2939
2940 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2941 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2942 else
2943 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2944
2945 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2946 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2947 else
2948 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2949
2950 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2951 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2952 else
2953 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2954
2955 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2956 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2957 else
2958 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2959
2960 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2961 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2962
2963 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2964 /* Set MCS for 1x1/2x2 */
2965 memset(mcs, 0xff, rx_mcs_supp);
2966 /* Clear all the other values */
2967 memset(&mcs[rx_mcs_supp], 0,
2968 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2969 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2970 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2971 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2972 SETHT_MCS32(mcs_set.rx_mask);
2973
2974 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2975
2976 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2977 }
2978
2979 /*
2980 * create a new virtual interface with the given name and name assign type
2981 */
mwifiex_add_virtual_intf(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)2982 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2983 const char *name,
2984 unsigned char name_assign_type,
2985 enum nl80211_iftype type,
2986 struct vif_params *params)
2987 {
2988 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2989 struct mwifiex_private *priv;
2990 struct net_device *dev;
2991 void *mdev_priv;
2992 int ret;
2993
2994 if (!adapter)
2995 return ERR_PTR(-EFAULT);
2996
2997 switch (type) {
2998 case NL80211_IFTYPE_UNSPECIFIED:
2999 case NL80211_IFTYPE_STATION:
3000 case NL80211_IFTYPE_ADHOC:
3001 if (adapter->curr_iface_comb.sta_intf ==
3002 adapter->iface_limit.sta_intf) {
3003 mwifiex_dbg(adapter, ERROR,
3004 "cannot create multiple sta/adhoc ifaces\n");
3005 return ERR_PTR(-EINVAL);
3006 }
3007
3008 priv = mwifiex_get_unused_priv_by_bss_type(
3009 adapter, MWIFIEX_BSS_TYPE_STA);
3010 if (!priv) {
3011 mwifiex_dbg(adapter, ERROR,
3012 "could not get free private struct\n");
3013 return ERR_PTR(-EFAULT);
3014 }
3015
3016 priv->wdev.wiphy = wiphy;
3017 priv->wdev.iftype = NL80211_IFTYPE_STATION;
3018
3019 if (type == NL80211_IFTYPE_UNSPECIFIED)
3020 priv->bss_mode = NL80211_IFTYPE_STATION;
3021 else
3022 priv->bss_mode = type;
3023
3024 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
3025 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3026 priv->bss_priority = 0;
3027 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3028
3029 break;
3030 case NL80211_IFTYPE_AP:
3031 if (adapter->curr_iface_comb.uap_intf ==
3032 adapter->iface_limit.uap_intf) {
3033 mwifiex_dbg(adapter, ERROR,
3034 "cannot create multiple AP ifaces\n");
3035 return ERR_PTR(-EINVAL);
3036 }
3037
3038 priv = mwifiex_get_unused_priv_by_bss_type(
3039 adapter, MWIFIEX_BSS_TYPE_UAP);
3040 if (!priv) {
3041 mwifiex_dbg(adapter, ERROR,
3042 "could not get free private struct\n");
3043 return ERR_PTR(-EFAULT);
3044 }
3045
3046 priv->wdev.wiphy = wiphy;
3047 priv->wdev.iftype = NL80211_IFTYPE_AP;
3048
3049 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
3050 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3051 priv->bss_priority = 0;
3052 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
3053 priv->bss_started = 0;
3054 priv->bss_mode = type;
3055
3056 break;
3057 case NL80211_IFTYPE_P2P_CLIENT:
3058 if (adapter->curr_iface_comb.p2p_intf ==
3059 adapter->iface_limit.p2p_intf) {
3060 mwifiex_dbg(adapter, ERROR,
3061 "cannot create multiple P2P ifaces\n");
3062 return ERR_PTR(-EINVAL);
3063 }
3064
3065 priv = mwifiex_get_unused_priv_by_bss_type(
3066 adapter, MWIFIEX_BSS_TYPE_P2P);
3067 if (!priv) {
3068 mwifiex_dbg(adapter, ERROR,
3069 "could not get free private struct\n");
3070 return ERR_PTR(-EFAULT);
3071 }
3072
3073 priv->wdev.wiphy = wiphy;
3074 /* At start-up, wpa_supplicant tries to change the interface
3075 * to NL80211_IFTYPE_STATION if it is not managed mode.
3076 */
3077 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
3078 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
3079
3080 /* Setting bss_type to P2P tells firmware that this interface
3081 * is receiving P2P peers found during find phase and doing
3082 * action frame handshake.
3083 */
3084 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
3085
3086 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3087 priv->bss_priority = 0;
3088 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3089 priv->bss_started = 0;
3090
3091 if (mwifiex_cfg80211_init_p2p_client(priv)) {
3092 memset(&priv->wdev, 0, sizeof(priv->wdev));
3093 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3094 return ERR_PTR(-EFAULT);
3095 }
3096
3097 break;
3098 default:
3099 mwifiex_dbg(adapter, ERROR, "type not supported\n");
3100 return ERR_PTR(-EINVAL);
3101 }
3102
3103 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3104 name_assign_type, ether_setup,
3105 IEEE80211_NUM_ACS, 1);
3106 if (!dev) {
3107 mwifiex_dbg(adapter, ERROR,
3108 "no memory available for netdevice\n");
3109 ret = -ENOMEM;
3110 goto err_alloc_netdev;
3111 }
3112
3113 mwifiex_init_priv_params(priv, dev);
3114
3115 priv->netdev = dev;
3116
3117 if (!adapter->mfg_mode) {
3118 mwifiex_set_mac_address(priv, dev, false, NULL);
3119
3120 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3121 HostCmd_ACT_GEN_SET, 0, NULL, true);
3122 if (ret)
3123 goto err_set_bss_mode;
3124
3125 ret = mwifiex_sta_init_cmd(priv, false, false);
3126 if (ret)
3127 goto err_sta_init;
3128 }
3129
3130 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3131 if (adapter->is_hw_11ac_capable)
3132 mwifiex_setup_vht_caps(
3133 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3134
3135 if (adapter->config_bands & BAND_A)
3136 mwifiex_setup_ht_caps(
3137 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3138
3139 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3140 mwifiex_setup_vht_caps(
3141 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3142
3143 dev_net_set(dev, wiphy_net(wiphy));
3144 dev->ieee80211_ptr = &priv->wdev;
3145 dev->ieee80211_ptr->iftype = priv->bss_mode;
3146 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3147
3148 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3149 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3150 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3151 dev->ethtool_ops = &mwifiex_ethtool_ops;
3152
3153 mdev_priv = netdev_priv(dev);
3154 *((unsigned long *) mdev_priv) = (unsigned long) priv;
3155
3156 SET_NETDEV_DEV(dev, adapter->dev);
3157
3158 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3159 WQ_HIGHPRI |
3160 WQ_MEM_RECLAIM |
3161 WQ_UNBOUND, 0, name);
3162 if (!priv->dfs_cac_workqueue) {
3163 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3164 ret = -ENOMEM;
3165 goto err_alloc_cac;
3166 }
3167
3168 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3169
3170 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3171 WQ_HIGHPRI | WQ_UNBOUND |
3172 WQ_MEM_RECLAIM, 0, name);
3173 if (!priv->dfs_chan_sw_workqueue) {
3174 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3175 ret = -ENOMEM;
3176 goto err_alloc_chsw;
3177 }
3178
3179 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3180 mwifiex_dfs_chan_sw_work_queue);
3181
3182 mutex_init(&priv->async_mutex);
3183
3184 /* Register network device */
3185 if (cfg80211_register_netdevice(dev)) {
3186 mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3187 ret = -EFAULT;
3188 goto err_reg_netdev;
3189 }
3190
3191 mwifiex_dbg(adapter, INFO,
3192 "info: %s: Marvell 802.11 Adapter\n", dev->name);
3193
3194 #ifdef CONFIG_DEBUG_FS
3195 mwifiex_dev_debugfs_init(priv);
3196 #endif
3197
3198 update_vif_type_counter(adapter, type, +1);
3199
3200 return &priv->wdev;
3201
3202 err_reg_netdev:
3203 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3204 priv->dfs_chan_sw_workqueue = NULL;
3205 err_alloc_chsw:
3206 destroy_workqueue(priv->dfs_cac_workqueue);
3207 priv->dfs_cac_workqueue = NULL;
3208 err_alloc_cac:
3209 free_netdev(dev);
3210 priv->netdev = NULL;
3211 err_sta_init:
3212 err_set_bss_mode:
3213 err_alloc_netdev:
3214 memset(&priv->wdev, 0, sizeof(priv->wdev));
3215 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3216 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3217 return ERR_PTR(ret);
3218 }
3219 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3220
3221 /*
3222 * del_virtual_intf: remove the virtual interface determined by dev
3223 */
mwifiex_del_virtual_intf(struct wiphy * wiphy,struct wireless_dev * wdev)3224 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3225 {
3226 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3227 struct mwifiex_adapter *adapter = priv->adapter;
3228 struct sk_buff *skb, *tmp;
3229
3230 #ifdef CONFIG_DEBUG_FS
3231 mwifiex_dev_debugfs_remove(priv);
3232 #endif
3233
3234 if (priv->sched_scanning)
3235 priv->sched_scanning = false;
3236
3237 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3238
3239 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3240 skb_unlink(skb, &priv->bypass_txq);
3241 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3242 }
3243
3244 if (netif_carrier_ok(priv->netdev))
3245 netif_carrier_off(priv->netdev);
3246
3247 if (wdev->netdev->reg_state == NETREG_REGISTERED)
3248 cfg80211_unregister_netdevice(wdev->netdev);
3249
3250 if (priv->dfs_cac_workqueue) {
3251 destroy_workqueue(priv->dfs_cac_workqueue);
3252 priv->dfs_cac_workqueue = NULL;
3253 }
3254
3255 if (priv->dfs_chan_sw_workqueue) {
3256 destroy_workqueue(priv->dfs_chan_sw_workqueue);
3257 priv->dfs_chan_sw_workqueue = NULL;
3258 }
3259 /* Clear the priv in adapter */
3260 priv->netdev = NULL;
3261
3262 update_vif_type_counter(adapter, priv->bss_mode, -1);
3263
3264 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3265
3266 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3267 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3268 kfree(priv->hist_data);
3269
3270 return 0;
3271 }
3272 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3273
3274 static bool
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern * pat,s8 * byte_seq,u8 max_byte_seq)3275 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3276 u8 max_byte_seq)
3277 {
3278 int j, k, valid_byte_cnt = 0;
3279 bool dont_care_byte = false;
3280
3281 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3282 for (k = 0; k < 8; k++) {
3283 if (pat->mask[j] & 1 << k) {
3284 memcpy(byte_seq + valid_byte_cnt,
3285 &pat->pattern[j * 8 + k], 1);
3286 valid_byte_cnt++;
3287 if (dont_care_byte)
3288 return false;
3289 } else {
3290 if (valid_byte_cnt)
3291 dont_care_byte = true;
3292 }
3293
3294 /* wildcard bytes record as the offset
3295 * before the valid byte
3296 */
3297 if (!valid_byte_cnt && !dont_care_byte)
3298 pat->pkt_offset++;
3299
3300 if (valid_byte_cnt > max_byte_seq)
3301 return false;
3302 }
3303 }
3304
3305 byte_seq[max_byte_seq] = valid_byte_cnt;
3306
3307 return true;
3308 }
3309
3310 #ifdef CONFIG_PM
mwifiex_set_auto_arp_mef_entry(struct mwifiex_private * priv,struct mwifiex_mef_entry * mef_entry)3311 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3312 struct mwifiex_mef_entry *mef_entry)
3313 {
3314 int i, filt_num = 0, num_ipv4 = 0;
3315 struct in_device *in_dev;
3316 struct in_ifaddr *ifa;
3317 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3318 struct mwifiex_adapter *adapter = priv->adapter;
3319
3320 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3321 mef_entry->action = MEF_ACTION_AUTO_ARP;
3322
3323 /* Enable ARP offload feature */
3324 memset(ips, 0, sizeof(ips));
3325 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3326 if (adapter->priv[i]->netdev) {
3327 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3328 if (!in_dev)
3329 continue;
3330 ifa = rtnl_dereference(in_dev->ifa_list);
3331 if (!ifa || !ifa->ifa_local)
3332 continue;
3333 ips[i] = ifa->ifa_local;
3334 num_ipv4++;
3335 }
3336 }
3337
3338 for (i = 0; i < num_ipv4; i++) {
3339 if (!ips[i])
3340 continue;
3341 mef_entry->filter[filt_num].repeat = 1;
3342 memcpy(mef_entry->filter[filt_num].byte_seq,
3343 (u8 *)&ips[i], sizeof(ips[i]));
3344 mef_entry->filter[filt_num].
3345 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3346 sizeof(ips[i]);
3347 mef_entry->filter[filt_num].offset = 46;
3348 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3349 if (filt_num) {
3350 mef_entry->filter[filt_num].filt_action =
3351 TYPE_OR;
3352 }
3353 filt_num++;
3354 }
3355
3356 mef_entry->filter[filt_num].repeat = 1;
3357 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3358 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3359 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3360 mef_entry->filter[filt_num].offset = 20;
3361 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3362 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3363 }
3364
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)3365 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3366 struct mwifiex_ds_mef_cfg *mef_cfg,
3367 struct mwifiex_mef_entry *mef_entry,
3368 struct cfg80211_wowlan *wowlan)
3369 {
3370 int i, filt_num = 0, ret = 0;
3371 bool first_pat = true;
3372 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3373 static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3374 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3375
3376 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3377 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3378
3379 for (i = 0; i < wowlan->n_patterns; i++) {
3380 memset(byte_seq, 0, sizeof(byte_seq));
3381 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3382 byte_seq,
3383 MWIFIEX_MEF_MAX_BYTESEQ)) {
3384 mwifiex_dbg(priv->adapter, ERROR,
3385 "Pattern not supported\n");
3386 return -EOPNOTSUPP;
3387 }
3388
3389 if (!wowlan->patterns[i].pkt_offset) {
3390 if (is_unicast_ether_addr(byte_seq) &&
3391 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3392 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3393 continue;
3394 } else if (is_broadcast_ether_addr(byte_seq)) {
3395 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3396 continue;
3397 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3398 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3399 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3400 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3401 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3402 continue;
3403 }
3404 }
3405 mef_entry->filter[filt_num].repeat = 1;
3406 mef_entry->filter[filt_num].offset =
3407 wowlan->patterns[i].pkt_offset;
3408 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3409 sizeof(byte_seq));
3410 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3411
3412 if (first_pat) {
3413 first_pat = false;
3414 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3415 } else {
3416 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3417 }
3418
3419 filt_num++;
3420 }
3421
3422 if (wowlan->magic_pkt) {
3423 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3424 mef_entry->filter[filt_num].repeat = 16;
3425 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3426 ETH_ALEN);
3427 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3428 ETH_ALEN;
3429 mef_entry->filter[filt_num].offset = 28;
3430 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3431 if (filt_num)
3432 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3433
3434 filt_num++;
3435 mef_entry->filter[filt_num].repeat = 16;
3436 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3437 ETH_ALEN);
3438 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3439 ETH_ALEN;
3440 mef_entry->filter[filt_num].offset = 56;
3441 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3442 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3443 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3444 }
3445 return ret;
3446 }
3447
mwifiex_set_mef_filter(struct mwifiex_private * priv,struct cfg80211_wowlan * wowlan)3448 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3449 struct cfg80211_wowlan *wowlan)
3450 {
3451 int ret = 0, num_entries = 1;
3452 struct mwifiex_ds_mef_cfg mef_cfg;
3453 struct mwifiex_mef_entry *mef_entry;
3454
3455 if (wowlan->n_patterns || wowlan->magic_pkt)
3456 num_entries++;
3457
3458 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3459 if (!mef_entry)
3460 return -ENOMEM;
3461
3462 memset(&mef_cfg, 0, sizeof(mef_cfg));
3463 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3464 MWIFIEX_CRITERIA_UNICAST;
3465 mef_cfg.num_entries = num_entries;
3466 mef_cfg.mef_entry = mef_entry;
3467
3468 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3469
3470 if (wowlan->n_patterns || wowlan->magic_pkt) {
3471 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3472 &mef_entry[1], wowlan);
3473 if (ret)
3474 goto err;
3475 }
3476
3477 if (!mef_cfg.criteria)
3478 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3479 MWIFIEX_CRITERIA_UNICAST |
3480 MWIFIEX_CRITERIA_MULTICAST;
3481
3482 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3483 HostCmd_ACT_GEN_SET, 0,
3484 &mef_cfg, true);
3485
3486 err:
3487 kfree(mef_entry);
3488 return ret;
3489 }
3490
mwifiex_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)3491 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3492 struct cfg80211_wowlan *wowlan)
3493 {
3494 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3495 struct mwifiex_ds_hs_cfg hs_cfg;
3496 int i, ret = 0, retry_num = 10;
3497 struct mwifiex_private *priv;
3498 struct mwifiex_private *sta_priv =
3499 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3500
3501 sta_priv->scan_aborting = true;
3502 for (i = 0; i < adapter->priv_num; i++) {
3503 priv = adapter->priv[i];
3504 mwifiex_abort_cac(priv);
3505 }
3506
3507 mwifiex_cancel_all_pending_cmd(adapter);
3508
3509 for (i = 0; i < adapter->priv_num; i++) {
3510 priv = adapter->priv[i];
3511 if (priv->netdev)
3512 netif_device_detach(priv->netdev);
3513 }
3514
3515 for (i = 0; i < retry_num; i++) {
3516 if (!mwifiex_wmm_lists_empty(adapter) ||
3517 !mwifiex_bypass_txlist_empty(adapter) ||
3518 !skb_queue_empty(&adapter->tx_data_q))
3519 usleep_range(10000, 15000);
3520 else
3521 break;
3522 }
3523
3524 if (!wowlan) {
3525 mwifiex_dbg(adapter, INFO,
3526 "None of the WOWLAN triggers enabled\n");
3527 ret = 0;
3528 goto done;
3529 }
3530
3531 if (!sta_priv->media_connected && !wowlan->nd_config) {
3532 mwifiex_dbg(adapter, ERROR,
3533 "Can not configure WOWLAN in disconnected state\n");
3534 ret = 0;
3535 goto done;
3536 }
3537
3538 ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3539 if (ret) {
3540 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3541 goto done;
3542 }
3543
3544 memset(&hs_cfg, 0, sizeof(hs_cfg));
3545 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3546
3547 if (wowlan->nd_config) {
3548 mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3549 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3550 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3551 wowlan->nd_config);
3552 }
3553
3554 if (wowlan->disconnect) {
3555 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3556 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3557 }
3558
3559 hs_cfg.is_invoke_hostcmd = false;
3560 hs_cfg.gpio = adapter->hs_cfg.gpio;
3561 hs_cfg.gap = adapter->hs_cfg.gap;
3562 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3563 MWIFIEX_SYNC_CMD, &hs_cfg);
3564 if (ret)
3565 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3566
3567 done:
3568 sta_priv->scan_aborting = false;
3569 return ret;
3570 }
3571
mwifiex_cfg80211_resume(struct wiphy * wiphy)3572 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3573 {
3574 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3575 struct mwifiex_private *priv;
3576 struct mwifiex_ds_wakeup_reason wakeup_reason;
3577 struct cfg80211_wowlan_wakeup wakeup_report;
3578 int i;
3579 bool report_wakeup_reason = true;
3580
3581 for (i = 0; i < adapter->priv_num; i++) {
3582 priv = adapter->priv[i];
3583 if (priv->netdev)
3584 netif_device_attach(priv->netdev);
3585 }
3586
3587 if (!wiphy->wowlan_config)
3588 goto done;
3589
3590 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3591 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3592 &wakeup_reason);
3593 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3594
3595 wakeup_report.pattern_idx = -1;
3596
3597 switch (wakeup_reason.hs_wakeup_reason) {
3598 case NO_HSWAKEUP_REASON:
3599 break;
3600 case BCAST_DATA_MATCHED:
3601 break;
3602 case MCAST_DATA_MATCHED:
3603 break;
3604 case UCAST_DATA_MATCHED:
3605 break;
3606 case MASKTABLE_EVENT_MATCHED:
3607 break;
3608 case NON_MASKABLE_EVENT_MATCHED:
3609 if (wiphy->wowlan_config->disconnect)
3610 wakeup_report.disconnect = true;
3611 if (wiphy->wowlan_config->nd_config)
3612 wakeup_report.net_detect = adapter->nd_info;
3613 break;
3614 case NON_MASKABLE_CONDITION_MATCHED:
3615 break;
3616 case MAGIC_PATTERN_MATCHED:
3617 if (wiphy->wowlan_config->magic_pkt)
3618 wakeup_report.magic_pkt = true;
3619 if (wiphy->wowlan_config->n_patterns)
3620 wakeup_report.pattern_idx = 1;
3621 break;
3622 case GTK_REKEY_FAILURE:
3623 if (wiphy->wowlan_config->gtk_rekey_failure)
3624 wakeup_report.gtk_rekey_failure = true;
3625 break;
3626 default:
3627 report_wakeup_reason = false;
3628 break;
3629 }
3630
3631 if (report_wakeup_reason)
3632 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3633 GFP_KERNEL);
3634
3635 done:
3636 if (adapter->nd_info) {
3637 for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3638 kfree(adapter->nd_info->matches[i]);
3639 kfree(adapter->nd_info);
3640 adapter->nd_info = NULL;
3641 }
3642
3643 return 0;
3644 }
3645
mwifiex_cfg80211_set_wakeup(struct wiphy * wiphy,bool enabled)3646 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3647 bool enabled)
3648 {
3649 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3650
3651 device_set_wakeup_enable(adapter->dev, enabled);
3652 }
3653
mwifiex_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3654 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3655 struct cfg80211_gtk_rekey_data *data)
3656 {
3657 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3658
3659 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3660 return -EOPNOTSUPP;
3661
3662 if (priv->adapter->host_mlme_enabled)
3663 return 0;
3664
3665 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3666 HostCmd_ACT_GEN_SET, 0, data, true);
3667 }
3668
3669 #endif
3670
mwifiex_get_coalesce_pkt_type(u8 * byte_seq)3671 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3672 {
3673 static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3674 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3675 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3676
3677 if ((byte_seq[0] & 0x01) &&
3678 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3679 return PACKET_TYPE_UNICAST;
3680 else if (!memcmp(byte_seq, bc_mac, 4))
3681 return PACKET_TYPE_BROADCAST;
3682 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3683 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3684 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3685 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3686 return PACKET_TYPE_MULTICAST;
3687
3688 return 0;
3689 }
3690
3691 static int
mwifiex_fill_coalesce_rule_info(struct mwifiex_private * priv,struct cfg80211_coalesce_rules * crule,struct mwifiex_coalesce_rule * mrule)3692 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3693 struct cfg80211_coalesce_rules *crule,
3694 struct mwifiex_coalesce_rule *mrule)
3695 {
3696 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3697 struct filt_field_param *param;
3698 int i;
3699
3700 mrule->max_coalescing_delay = crule->delay;
3701
3702 param = mrule->params;
3703
3704 for (i = 0; i < crule->n_patterns; i++) {
3705 memset(byte_seq, 0, sizeof(byte_seq));
3706 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3707 byte_seq,
3708 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3709 mwifiex_dbg(priv->adapter, ERROR,
3710 "Pattern not supported\n");
3711 return -EOPNOTSUPP;
3712 }
3713
3714 if (!crule->patterns[i].pkt_offset) {
3715 u8 pkt_type;
3716
3717 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3718 if (pkt_type && mrule->pkt_type) {
3719 mwifiex_dbg(priv->adapter, ERROR,
3720 "Multiple packet types not allowed\n");
3721 return -EOPNOTSUPP;
3722 } else if (pkt_type) {
3723 mrule->pkt_type = pkt_type;
3724 continue;
3725 }
3726 }
3727
3728 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3729 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3730 else
3731 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3732
3733 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3734 memcpy(param->operand_byte_stream, byte_seq,
3735 param->operand_len);
3736 param->offset = crule->patterns[i].pkt_offset;
3737 param++;
3738
3739 mrule->num_of_fields++;
3740 }
3741
3742 if (!mrule->pkt_type) {
3743 mwifiex_dbg(priv->adapter, ERROR,
3744 "Packet type can not be determined\n");
3745 return -EOPNOTSUPP;
3746 }
3747
3748 return 0;
3749 }
3750
mwifiex_cfg80211_set_coalesce(struct wiphy * wiphy,struct cfg80211_coalesce * coalesce)3751 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3752 struct cfg80211_coalesce *coalesce)
3753 {
3754 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3755 int i, ret;
3756 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3757 struct mwifiex_private *priv =
3758 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3759
3760 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3761 if (!coalesce) {
3762 mwifiex_dbg(adapter, WARN,
3763 "Disable coalesce and reset all previous rules\n");
3764 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3765 HostCmd_ACT_GEN_SET, 0,
3766 &coalesce_cfg, true);
3767 }
3768
3769 coalesce_cfg.num_of_rules = coalesce->n_rules;
3770 for (i = 0; i < coalesce->n_rules; i++) {
3771 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3772 &coalesce_cfg.rule[i]);
3773 if (ret) {
3774 mwifiex_dbg(adapter, ERROR,
3775 "Recheck the patterns provided for rule %d\n",
3776 i + 1);
3777 return ret;
3778 }
3779 }
3780
3781 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3782 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3783 }
3784
3785 /* cfg80211 ops handler for tdls_mgmt.
3786 * Function prepares TDLS action frame packets and forwards them to FW
3787 */
3788 static int
mwifiex_cfg80211_tdls_mgmt(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,int link_id,u8 action_code,u8 dialog_token,u16 status_code,u32 peer_capability,bool initiator,const u8 * extra_ies,size_t extra_ies_len)3789 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3790 const u8 *peer, int link_id, u8 action_code,
3791 u8 dialog_token, u16 status_code,
3792 u32 peer_capability, bool initiator,
3793 const u8 *extra_ies, size_t extra_ies_len)
3794 {
3795 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3796 int ret;
3797
3798 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3799 return -EOPNOTSUPP;
3800
3801 /* make sure we are in station mode and connected */
3802 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3803 return -EOPNOTSUPP;
3804
3805 switch (action_code) {
3806 case WLAN_TDLS_SETUP_REQUEST:
3807 mwifiex_dbg(priv->adapter, MSG,
3808 "Send TDLS Setup Request to %pM status_code=%d\n",
3809 peer, status_code);
3810 mwifiex_add_auto_tdls_peer(priv, 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_SETUP_RESPONSE:
3816 mwifiex_add_auto_tdls_peer(priv, peer);
3817 mwifiex_dbg(priv->adapter, MSG,
3818 "Send TDLS Setup Response to %pM status_code=%d\n",
3819 peer, status_code);
3820 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3821 dialog_token, status_code,
3822 extra_ies, extra_ies_len);
3823 break;
3824 case WLAN_TDLS_SETUP_CONFIRM:
3825 mwifiex_dbg(priv->adapter, MSG,
3826 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3827 status_code);
3828 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3829 dialog_token, status_code,
3830 extra_ies, extra_ies_len);
3831 break;
3832 case WLAN_TDLS_TEARDOWN:
3833 mwifiex_dbg(priv->adapter, MSG,
3834 "Send TDLS Tear down to %pM\n", peer);
3835 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3836 dialog_token, status_code,
3837 extra_ies, extra_ies_len);
3838 break;
3839 case WLAN_TDLS_DISCOVERY_REQUEST:
3840 mwifiex_dbg(priv->adapter, MSG,
3841 "Send TDLS Discovery Request to %pM\n", peer);
3842 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3843 dialog_token, status_code,
3844 extra_ies, extra_ies_len);
3845 break;
3846 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3847 mwifiex_dbg(priv->adapter, MSG,
3848 "Send TDLS Discovery Response to %pM\n", peer);
3849 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3850 dialog_token, status_code,
3851 extra_ies, extra_ies_len);
3852 break;
3853 default:
3854 mwifiex_dbg(priv->adapter, ERROR,
3855 "Unknown TDLS mgmt/action frame %pM\n", peer);
3856 ret = -EINVAL;
3857 break;
3858 }
3859
3860 return ret;
3861 }
3862
3863 static int
mwifiex_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,enum nl80211_tdls_operation action)3864 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3865 const u8 *peer, enum nl80211_tdls_operation action)
3866 {
3867 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3868
3869 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3870 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3871 return -EOPNOTSUPP;
3872
3873 /* make sure we are in station mode and connected */
3874 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3875 return -EOPNOTSUPP;
3876
3877 mwifiex_dbg(priv->adapter, MSG,
3878 "TDLS peer=%pM, oper=%d\n", peer, action);
3879
3880 switch (action) {
3881 case NL80211_TDLS_ENABLE_LINK:
3882 action = MWIFIEX_TDLS_ENABLE_LINK;
3883 break;
3884 case NL80211_TDLS_DISABLE_LINK:
3885 action = MWIFIEX_TDLS_DISABLE_LINK;
3886 break;
3887 case NL80211_TDLS_TEARDOWN:
3888 /* shouldn't happen!*/
3889 mwifiex_dbg(priv->adapter, ERROR,
3890 "tdls_oper: teardown from driver not supported\n");
3891 return -EINVAL;
3892 case NL80211_TDLS_SETUP:
3893 /* shouldn't happen!*/
3894 mwifiex_dbg(priv->adapter, ERROR,
3895 "tdls_oper: setup from driver not supported\n");
3896 return -EINVAL;
3897 case NL80211_TDLS_DISCOVERY_REQ:
3898 /* shouldn't happen!*/
3899 mwifiex_dbg(priv->adapter, ERROR,
3900 "tdls_oper: discovery from driver not supported\n");
3901 return -EINVAL;
3902 default:
3903 mwifiex_dbg(priv->adapter, ERROR,
3904 "tdls_oper: operation not supported\n");
3905 return -EOPNOTSUPP;
3906 }
3907
3908 return mwifiex_tdls_oper(priv, peer, action);
3909 }
3910
3911 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)3912 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3913 const u8 *addr, u8 oper_class,
3914 struct cfg80211_chan_def *chandef)
3915 {
3916 struct mwifiex_sta_node *sta_ptr;
3917 u16 chan;
3918 u8 second_chan_offset, band;
3919 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3920
3921 spin_lock_bh(&priv->sta_list_spinlock);
3922 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3923 if (!sta_ptr) {
3924 spin_unlock_bh(&priv->sta_list_spinlock);
3925 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3926 __func__, addr);
3927 return -ENOENT;
3928 }
3929
3930 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3931 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3932 spin_unlock_bh(&priv->sta_list_spinlock);
3933 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3934 return -ENOENT;
3935 }
3936
3937 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3938 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3939 spin_unlock_bh(&priv->sta_list_spinlock);
3940 wiphy_err(wiphy, "channel switch is running, abort request\n");
3941 return -EALREADY;
3942 }
3943 spin_unlock_bh(&priv->sta_list_spinlock);
3944
3945 chan = chandef->chan->hw_value;
3946 second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3947 band = chandef->chan->band;
3948 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3949
3950 return 0;
3951 }
3952
3953 static void
mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)3954 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3955 struct net_device *dev,
3956 const u8 *addr)
3957 {
3958 struct mwifiex_sta_node *sta_ptr;
3959 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3960
3961 spin_lock_bh(&priv->sta_list_spinlock);
3962 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3963 if (!sta_ptr) {
3964 spin_unlock_bh(&priv->sta_list_spinlock);
3965 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3966 __func__, addr);
3967 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3968 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3969 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3970 spin_unlock_bh(&priv->sta_list_spinlock);
3971 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3972 addr);
3973 } else {
3974 spin_unlock_bh(&priv->sta_list_spinlock);
3975 mwifiex_stop_tdls_cs(priv, addr);
3976 }
3977 }
3978
3979 static int
mwifiex_cfg80211_uap_add_station(struct mwifiex_private * priv,const u8 * mac,struct station_parameters * params)3980 mwifiex_cfg80211_uap_add_station(struct mwifiex_private *priv, const u8 *mac,
3981 struct station_parameters *params)
3982 {
3983 struct mwifiex_sta_info add_sta;
3984 int ret;
3985
3986 memcpy(add_sta.peer_mac, mac, ETH_ALEN);
3987 add_sta.params = params;
3988
3989 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ADD_NEW_STATION,
3990 HostCmd_ACT_ADD_STA, 0, (void *)&add_sta, true);
3991
3992 if (!ret) {
3993 struct station_info *sinfo;
3994
3995 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
3996 if (!sinfo)
3997 return -ENOMEM;
3998
3999 cfg80211_new_sta(priv->netdev, mac, sinfo, GFP_KERNEL);
4000 kfree(sinfo);
4001 }
4002
4003 return ret;
4004 }
4005
4006 static int
mwifiex_cfg80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)4007 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
4008 const u8 *mac, struct station_parameters *params)
4009 {
4010 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4011
4012 if (priv->adapter->host_mlme_enabled &&
4013 (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP))
4014 return mwifiex_cfg80211_uap_add_station(priv, mac, params);
4015
4016 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4017 return -EOPNOTSUPP;
4018
4019 /* make sure we are in station mode and connected */
4020 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4021 return -EOPNOTSUPP;
4022
4023 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
4024 }
4025
4026 static int
mwifiex_cfg80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4027 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4028 struct cfg80211_csa_settings *params)
4029 {
4030 struct ieee_types_header *chsw_ie;
4031 struct ieee80211_channel_sw_ie *channel_sw;
4032 int chsw_msec;
4033 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4034
4035 if (priv->adapter->scan_processing) {
4036 mwifiex_dbg(priv->adapter, ERROR,
4037 "radar detection: scan in process...\n");
4038 return -EBUSY;
4039 }
4040
4041 if (priv->wdev.links[0].cac_started)
4042 return -EBUSY;
4043
4044 if (cfg80211_chandef_identical(¶ms->chandef,
4045 &priv->dfs_chandef))
4046 return -EINVAL;
4047
4048 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
4049 params->beacon_csa.tail,
4050 params->beacon_csa.tail_len);
4051 if (!chsw_ie) {
4052 mwifiex_dbg(priv->adapter, ERROR,
4053 "Could not parse channel switch announcement IE\n");
4054 return -EINVAL;
4055 }
4056
4057 channel_sw = (void *)(chsw_ie + 1);
4058 if (channel_sw->mode) {
4059 if (netif_carrier_ok(priv->netdev))
4060 netif_carrier_off(priv->netdev);
4061 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
4062 }
4063
4064 if (mwifiex_del_mgmt_ies(priv))
4065 mwifiex_dbg(priv->adapter, ERROR,
4066 "Failed to delete mgmt IEs!\n");
4067
4068 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) {
4069 mwifiex_dbg(priv->adapter, ERROR,
4070 "%s: setting mgmt ies failed\n", __func__);
4071 return -EFAULT;
4072 }
4073
4074 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef));
4075 memcpy(&priv->beacon_after, ¶ms->beacon_after,
4076 sizeof(priv->beacon_after));
4077
4078 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
4079 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
4080 msecs_to_jiffies(chsw_msec));
4081 return 0;
4082 }
4083
mwifiex_cfg80211_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4084 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
4085 struct wireless_dev *wdev,
4086 unsigned int link_id,
4087 struct cfg80211_chan_def *chandef)
4088 {
4089 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4090 struct mwifiex_bssdescriptor *curr_bss;
4091 struct ieee80211_channel *chan;
4092 enum nl80211_channel_type chan_type;
4093 enum nl80211_band band;
4094 int freq;
4095 int ret = -ENODATA;
4096
4097 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4098 cfg80211_chandef_valid(&priv->bss_chandef)) {
4099 *chandef = priv->bss_chandef;
4100 ret = 0;
4101 } else if (priv->media_connected) {
4102 curr_bss = &priv->curr_bss_params.bss_descriptor;
4103 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4104 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4105 chan = ieee80211_get_channel(wiphy, freq);
4106
4107 if (priv->ht_param_present) {
4108 chan_type = mwifiex_get_chan_type(priv);
4109 cfg80211_chandef_create(chandef, chan, chan_type);
4110 } else {
4111 cfg80211_chandef_create(chandef, chan,
4112 NL80211_CHAN_NO_HT);
4113 }
4114 ret = 0;
4115 }
4116
4117 return ret;
4118 }
4119
4120 #ifdef CONFIG_NL80211_TESTMODE
4121
4122 enum mwifiex_tm_attr {
4123 __MWIFIEX_TM_ATTR_INVALID = 0,
4124 MWIFIEX_TM_ATTR_CMD = 1,
4125 MWIFIEX_TM_ATTR_DATA = 2,
4126
4127 /* keep last */
4128 __MWIFIEX_TM_ATTR_AFTER_LAST,
4129 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4130 };
4131
4132 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4133 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 },
4134 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY,
4135 .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4136 };
4137
4138 enum mwifiex_tm_command {
4139 MWIFIEX_TM_CMD_HOSTCMD = 0,
4140 };
4141
mwifiex_tm_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)4142 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4143 void *data, int len)
4144 {
4145 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4146 struct mwifiex_ds_misc_cmd *hostcmd;
4147 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4148 struct sk_buff *skb;
4149 int err;
4150
4151 if (!priv)
4152 return -EINVAL;
4153
4154 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4155 mwifiex_tm_policy, NULL);
4156 if (err)
4157 return err;
4158
4159 if (!tb[MWIFIEX_TM_ATTR_CMD])
4160 return -EINVAL;
4161
4162 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4163 case MWIFIEX_TM_CMD_HOSTCMD:
4164 if (!tb[MWIFIEX_TM_ATTR_DATA])
4165 return -EINVAL;
4166
4167 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4168 if (!hostcmd)
4169 return -ENOMEM;
4170
4171 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4172 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4173 hostcmd->len);
4174
4175 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4176 dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4177 kfree(hostcmd);
4178 return -EFAULT;
4179 }
4180
4181 /* process hostcmd response*/
4182 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4183 if (!skb) {
4184 kfree(hostcmd);
4185 return -ENOMEM;
4186 }
4187 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4188 hostcmd->len, hostcmd->cmd);
4189 if (err) {
4190 kfree(hostcmd);
4191 kfree_skb(skb);
4192 return -EMSGSIZE;
4193 }
4194
4195 err = cfg80211_testmode_reply(skb);
4196 kfree(hostcmd);
4197 return err;
4198 default:
4199 return -EOPNOTSUPP;
4200 }
4201 }
4202 #endif
4203
4204 static int
mwifiex_cfg80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms,int link_id)4205 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4206 struct net_device *dev,
4207 struct cfg80211_chan_def *chandef,
4208 u32 cac_time_ms, int link_id)
4209 {
4210 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4211 struct mwifiex_radar_params radar_params;
4212
4213 if (priv->adapter->scan_processing) {
4214 mwifiex_dbg(priv->adapter, ERROR,
4215 "radar detection: scan already in process...\n");
4216 return -EBUSY;
4217 }
4218
4219 if (!mwifiex_is_11h_active(priv)) {
4220 mwifiex_dbg(priv->adapter, INFO,
4221 "Enable 11h extensions in FW\n");
4222 if (mwifiex_11h_activate(priv, true)) {
4223 mwifiex_dbg(priv->adapter, ERROR,
4224 "Failed to activate 11h extensions!!");
4225 return -1;
4226 }
4227 priv->state_11h.is_11h_active = true;
4228 }
4229
4230 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4231 radar_params.chandef = chandef;
4232 radar_params.cac_time_ms = cac_time_ms;
4233
4234 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4235
4236 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4237 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4238 return -1;
4239
4240 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4241 msecs_to_jiffies(cac_time_ms));
4242 return 0;
4243 }
4244
4245 static int
mwifiex_cfg80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)4246 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4247 const u8 *mac,
4248 struct station_parameters *params)
4249 {
4250 int ret;
4251 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4252
4253 if (priv->adapter->host_mlme_enabled &&
4254 (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP))
4255 return 0;
4256
4257 /* we support change_station handler only for TDLS peers*/
4258 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4259 return -EOPNOTSUPP;
4260
4261 /* make sure we are in station mode and connected */
4262 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4263 return -EOPNOTSUPP;
4264
4265 priv->sta_params = params;
4266
4267 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4268 priv->sta_params = NULL;
4269
4270 return ret;
4271 }
4272
4273 static int
mwifiex_cfg80211_authenticate(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)4274 mwifiex_cfg80211_authenticate(struct wiphy *wiphy,
4275 struct net_device *dev,
4276 struct cfg80211_auth_request *req)
4277 {
4278 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4279 struct mwifiex_adapter *adapter = priv->adapter;
4280 struct sk_buff *skb;
4281 u16 pkt_len, auth_alg;
4282 int ret;
4283 struct mwifiex_ieee80211_mgmt *mgmt;
4284 struct mwifiex_txinfo *tx_info;
4285 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
4286 u8 trans = 1, status_code = 0;
4287 u8 *varptr = NULL;
4288
4289 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
4290 mwifiex_dbg(priv->adapter, ERROR, "Interface role is AP\n");
4291 return -EFAULT;
4292 }
4293
4294 if (priv->wdev.iftype != NL80211_IFTYPE_STATION) {
4295 mwifiex_dbg(priv->adapter, ERROR,
4296 "Interface type is not correct (type %d)\n",
4297 priv->wdev.iftype);
4298 return -EINVAL;
4299 }
4300
4301 if (priv->auth_alg != WLAN_AUTH_SAE &&
4302 (priv->auth_flag & HOST_MLME_AUTH_PENDING)) {
4303 mwifiex_dbg(priv->adapter, ERROR, "Pending auth on going\n");
4304 return -EBUSY;
4305 }
4306
4307 if (!priv->host_mlme_reg) {
4308 priv->host_mlme_reg = true;
4309 priv->mgmt_frame_mask |= HOST_MLME_MGMT_MASK;
4310 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
4311 HostCmd_ACT_GEN_SET, 0,
4312 &priv->mgmt_frame_mask, false);
4313 }
4314
4315 switch (req->auth_type) {
4316 case NL80211_AUTHTYPE_OPEN_SYSTEM:
4317 auth_alg = WLAN_AUTH_OPEN;
4318 break;
4319 case NL80211_AUTHTYPE_SHARED_KEY:
4320 auth_alg = WLAN_AUTH_SHARED_KEY;
4321 break;
4322 case NL80211_AUTHTYPE_FT:
4323 auth_alg = WLAN_AUTH_FT;
4324 break;
4325 case NL80211_AUTHTYPE_NETWORK_EAP:
4326 auth_alg = WLAN_AUTH_LEAP;
4327 break;
4328 case NL80211_AUTHTYPE_SAE:
4329 auth_alg = WLAN_AUTH_SAE;
4330 break;
4331 default:
4332 mwifiex_dbg(priv->adapter, ERROR,
4333 "unsupported auth type=%d\n", req->auth_type);
4334 return -EOPNOTSUPP;
4335 }
4336
4337 if (!priv->auth_flag) {
4338 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET,
4339 req->bss->channel,
4340 AUTH_TX_DEFAULT_WAIT_TIME);
4341
4342 if (!ret) {
4343 priv->roc_cfg.cookie = get_random_u32() | 1;
4344 priv->roc_cfg.chan = *req->bss->channel;
4345 } else {
4346 return -EFAULT;
4347 }
4348 }
4349
4350 priv->sec_info.authentication_mode = auth_alg;
4351
4352 mwifiex_cancel_scan(adapter);
4353
4354 pkt_len = (u16)req->ie_len + req->auth_data_len +
4355 MWIFIEX_MGMT_HEADER_LEN + MWIFIEX_AUTH_BODY_LEN;
4356 if (req->auth_data_len >= 4)
4357 pkt_len -= 4;
4358
4359 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
4360 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
4361 pkt_len + sizeof(pkt_len));
4362 if (!skb) {
4363 mwifiex_dbg(priv->adapter, ERROR,
4364 "allocate skb failed for management frame\n");
4365 return -ENOMEM;
4366 }
4367
4368 tx_info = MWIFIEX_SKB_TXCB(skb);
4369 memset(tx_info, 0, sizeof(*tx_info));
4370 tx_info->bss_num = priv->bss_num;
4371 tx_info->bss_type = priv->bss_type;
4372 tx_info->pkt_len = pkt_len;
4373
4374 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
4375 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
4376 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
4377 memcpy(skb_push(skb, sizeof(tx_control)),
4378 &tx_control, sizeof(tx_control));
4379 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
4380
4381 mgmt = (struct mwifiex_ieee80211_mgmt *)skb_put(skb, pkt_len);
4382 memset(mgmt, 0, pkt_len);
4383 mgmt->frame_control =
4384 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
4385 memcpy(mgmt->da, req->bss->bssid, ETH_ALEN);
4386 memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
4387 memcpy(mgmt->bssid, req->bss->bssid, ETH_ALEN);
4388 eth_broadcast_addr(mgmt->addr4);
4389
4390 if (req->auth_data_len >= 4) {
4391 if (req->auth_type == NL80211_AUTHTYPE_SAE) {
4392 __le16 *pos = (__le16 *)req->auth_data;
4393
4394 trans = le16_to_cpu(pos[0]);
4395 status_code = le16_to_cpu(pos[1]);
4396 }
4397 memcpy((u8 *)(&mgmt->auth.variable), req->auth_data + 4,
4398 req->auth_data_len - 4);
4399 varptr = (u8 *)&mgmt->auth.variable +
4400 (req->auth_data_len - 4);
4401 }
4402
4403 mgmt->auth.auth_alg = cpu_to_le16(auth_alg);
4404 mgmt->auth.auth_transaction = cpu_to_le16(trans);
4405 mgmt->auth.status_code = cpu_to_le16(status_code);
4406
4407 if (req->ie && req->ie_len) {
4408 if (!varptr)
4409 varptr = (u8 *)&mgmt->auth.variable;
4410 memcpy((u8 *)varptr, req->ie, req->ie_len);
4411 }
4412
4413 priv->auth_flag = HOST_MLME_AUTH_PENDING;
4414 priv->auth_alg = auth_alg;
4415
4416 skb->priority = WMM_HIGHEST_PRIORITY;
4417 __net_timestamp(skb);
4418
4419 mwifiex_dbg(priv->adapter, MSG,
4420 "auth: send authentication to %pM\n", req->bss->bssid);
4421
4422 mwifiex_queue_tx_pkt(priv, skb);
4423
4424 return 0;
4425 }
4426
4427 static int
mwifiex_cfg80211_associate(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)4428 mwifiex_cfg80211_associate(struct wiphy *wiphy, struct net_device *dev,
4429 struct cfg80211_assoc_request *req)
4430 {
4431 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4432 struct mwifiex_adapter *adapter = priv->adapter;
4433 int ret;
4434 struct cfg80211_ssid req_ssid;
4435 const u8 *ssid_ie;
4436
4437 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
4438 mwifiex_dbg(adapter, ERROR,
4439 "%s: reject infra assoc request in non-STA role\n",
4440 dev->name);
4441 return -EINVAL;
4442 }
4443
4444 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
4445 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
4446 mwifiex_dbg(adapter, ERROR,
4447 "%s: Ignore association.\t"
4448 "Card removed or FW in bad state\n",
4449 dev->name);
4450 return -EFAULT;
4451 }
4452
4453 if (priv->auth_alg == WLAN_AUTH_SAE)
4454 priv->auth_flag = HOST_MLME_AUTH_DONE;
4455
4456 if (priv->auth_flag && !(priv->auth_flag & HOST_MLME_AUTH_DONE))
4457 return -EBUSY;
4458
4459 if (priv->roc_cfg.cookie) {
4460 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
4461 &priv->roc_cfg.chan, 0);
4462 if (!ret)
4463 memset(&priv->roc_cfg, 0,
4464 sizeof(struct mwifiex_roc_cfg));
4465 else
4466 return -EFAULT;
4467 }
4468
4469 if (!mwifiex_stop_bg_scan(priv))
4470 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
4471
4472 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
4473 rcu_read_lock();
4474 ssid_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
4475
4476 if (!ssid_ie)
4477 goto ssid_err;
4478
4479 req_ssid.ssid_len = ssid_ie[1];
4480 if (req_ssid.ssid_len > IEEE80211_MAX_SSID_LEN) {
4481 mwifiex_dbg(adapter, ERROR, "invalid SSID - aborting\n");
4482 goto ssid_err;
4483 }
4484
4485 memcpy(req_ssid.ssid, ssid_ie + 2, req_ssid.ssid_len);
4486 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
4487 mwifiex_dbg(adapter, ERROR, "invalid SSID - aborting\n");
4488 goto ssid_err;
4489 }
4490 rcu_read_unlock();
4491
4492 /* As this is new association, clear locally stored
4493 * keys and security related flags
4494 */
4495 priv->sec_info.wpa_enabled = false;
4496 priv->sec_info.wpa2_enabled = false;
4497 priv->wep_key_curr_index = 0;
4498 priv->sec_info.encryption_mode = 0;
4499 priv->sec_info.is_authtype_auto = 0;
4500 if (mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1)) {
4501 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
4502 return -EFAULT;
4503 }
4504
4505 if (req->crypto.n_ciphers_pairwise)
4506 priv->sec_info.encryption_mode =
4507 req->crypto.ciphers_pairwise[0];
4508
4509 if (req->crypto.cipher_group)
4510 priv->sec_info.encryption_mode = req->crypto.cipher_group;
4511
4512 if (req->ie)
4513 mwifiex_set_gen_ie(priv, req->ie, req->ie_len);
4514
4515 memcpy(priv->cfg_bssid, req->bss->bssid, ETH_ALEN);
4516
4517 mwifiex_dbg(adapter, MSG,
4518 "assoc: send association to %pM\n", req->bss->bssid);
4519
4520 cfg80211_ref_bss(adapter->wiphy, req->bss);
4521 ret = mwifiex_bss_start(priv, req->bss, &req_ssid);
4522 if (ret) {
4523 priv->auth_flag = 0;
4524 priv->auth_alg = WLAN_AUTH_NONE;
4525 eth_zero_addr(priv->cfg_bssid);
4526 }
4527
4528 if (priv->assoc_rsp_size) {
4529 priv->req_bss = req->bss;
4530 adapter->assoc_resp_received = true;
4531 queue_work(adapter->host_mlme_workqueue,
4532 &adapter->host_mlme_work);
4533 }
4534
4535 cfg80211_put_bss(priv->adapter->wiphy, req->bss);
4536
4537 return 0;
4538
4539 ssid_err:
4540 rcu_read_unlock();
4541 return -EFAULT;
4542 }
4543
4544 static int
mwifiex_cfg80211_deauthenticate(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)4545 mwifiex_cfg80211_deauthenticate(struct wiphy *wiphy,
4546 struct net_device *dev,
4547 struct cfg80211_deauth_request *req)
4548 {
4549 return mwifiex_cfg80211_disconnect(wiphy, dev, req->reason_code);
4550 }
4551
4552 static int
mwifiex_cfg80211_disassociate(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)4553 mwifiex_cfg80211_disassociate(struct wiphy *wiphy,
4554 struct net_device *dev,
4555 struct cfg80211_disassoc_request *req)
4556 {
4557 return mwifiex_cfg80211_disconnect(wiphy, dev, req->reason_code);
4558 }
4559
4560 static int
mwifiex_cfg80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4561 mwifiex_cfg80211_probe_client(struct wiphy *wiphy,
4562 struct net_device *dev, const u8 *peer,
4563 u64 *cookie)
4564 {
4565 /* hostapd looks for NL80211_CMD_PROBE_CLIENT support; otherwise,
4566 * it requires monitor-mode support (which mwifiex doesn't support).
4567 * Provide fake probe_client support to work around this.
4568 */
4569 return -EOPNOTSUPP;
4570 }
4571
4572 /* station cfg80211 operations */
4573 static const struct cfg80211_ops mwifiex_cfg80211_ops = {
4574 .add_virtual_intf = mwifiex_add_virtual_intf,
4575 .del_virtual_intf = mwifiex_del_virtual_intf,
4576 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4577 .scan = mwifiex_cfg80211_scan,
4578 .connect = mwifiex_cfg80211_connect,
4579 .disconnect = mwifiex_cfg80211_disconnect,
4580 .get_station = mwifiex_cfg80211_get_station,
4581 .dump_station = mwifiex_cfg80211_dump_station,
4582 .dump_survey = mwifiex_cfg80211_dump_survey,
4583 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4584 .join_ibss = mwifiex_cfg80211_join_ibss,
4585 .leave_ibss = mwifiex_cfg80211_leave_ibss,
4586 .add_key = mwifiex_cfg80211_add_key,
4587 .del_key = mwifiex_cfg80211_del_key,
4588 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4589 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4590 .update_mgmt_frame_registrations =
4591 mwifiex_cfg80211_update_mgmt_frame_registrations,
4592 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4593 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4594 .set_default_key = mwifiex_cfg80211_set_default_key,
4595 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4596 .set_tx_power = mwifiex_cfg80211_set_tx_power,
4597 .get_tx_power = mwifiex_cfg80211_get_tx_power,
4598 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4599 .start_ap = mwifiex_cfg80211_start_ap,
4600 .stop_ap = mwifiex_cfg80211_stop_ap,
4601 .change_beacon = mwifiex_cfg80211_change_beacon,
4602 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4603 .set_antenna = mwifiex_cfg80211_set_antenna,
4604 .get_antenna = mwifiex_cfg80211_get_antenna,
4605 .del_station = mwifiex_cfg80211_del_station,
4606 .sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4607 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4608 #ifdef CONFIG_PM
4609 .suspend = mwifiex_cfg80211_suspend,
4610 .resume = mwifiex_cfg80211_resume,
4611 .set_wakeup = mwifiex_cfg80211_set_wakeup,
4612 .set_rekey_data = mwifiex_set_rekey_data,
4613 #endif
4614 .set_coalesce = mwifiex_cfg80211_set_coalesce,
4615 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4616 .tdls_oper = mwifiex_cfg80211_tdls_oper,
4617 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4618 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4619 .add_station = mwifiex_cfg80211_add_station,
4620 .change_station = mwifiex_cfg80211_change_station,
4621 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4622 .get_channel = mwifiex_cfg80211_get_channel,
4623 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4624 .channel_switch = mwifiex_cfg80211_channel_switch,
4625 };
4626
4627 #ifdef CONFIG_PM
4628 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4629 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4630 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4631 WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4632 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4633 .pattern_min_len = 1,
4634 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4635 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4636 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4637 };
4638
4639 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4640 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4641 WIPHY_WOWLAN_NET_DETECT,
4642 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4643 .pattern_min_len = 1,
4644 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4645 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4646 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4647 };
4648 #endif
4649
mwifiex_is_valid_alpha2(const char * alpha2)4650 static bool mwifiex_is_valid_alpha2(const char *alpha2)
4651 {
4652 if (!alpha2 || strlen(alpha2) != 2)
4653 return false;
4654
4655 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4656 return true;
4657
4658 return false;
4659 }
4660
4661 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4662 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
4663 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4664 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4665 .pattern_min_len = 1,
4666 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4667 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4668 };
4669
mwifiex_init_channel_scan_gap(struct mwifiex_adapter * adapter)4670 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4671 {
4672 u32 n_channels_bg, n_channels_a = 0;
4673
4674 n_channels_bg = mwifiex_band_2ghz.n_channels;
4675
4676 if (adapter->config_bands & BAND_A)
4677 n_channels_a = mwifiex_band_5ghz.n_channels;
4678
4679 /* allocate twice the number total channels, since the driver issues an
4680 * additional active scan request for hidden SSIDs on passive channels.
4681 */
4682 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4683 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats),
4684 adapter->num_in_chan_stats));
4685
4686 if (!adapter->chan_stats)
4687 return -ENOMEM;
4688
4689 return 0;
4690 }
4691
4692 /*
4693 * This function registers the device with CFG802.11 subsystem.
4694 *
4695 * The function creates the wireless device/wiphy, populates it with
4696 * default parameters and handler function pointers, and finally
4697 * registers the device.
4698 */
4699
mwifiex_register_cfg80211(struct mwifiex_adapter * adapter)4700 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4701 {
4702 int ret;
4703 void *wdev_priv;
4704 struct wiphy *wiphy;
4705 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4706 u8 *country_code;
4707 u32 thr, retry;
4708 struct cfg80211_ops *ops;
4709
4710 ops = devm_kmemdup(adapter->dev, &mwifiex_cfg80211_ops,
4711 sizeof(mwifiex_cfg80211_ops), GFP_KERNEL);
4712 if (!ops)
4713 return -ENOMEM;
4714
4715 /* create a new wiphy for use with cfg80211 */
4716 wiphy = wiphy_new(ops, sizeof(struct mwifiex_adapter *));
4717 if (!wiphy) {
4718 mwifiex_dbg(adapter, ERROR,
4719 "%s: creating new wiphy\n", __func__);
4720 return -ENOMEM;
4721 }
4722 if (adapter->host_mlme_enabled) {
4723 ops->auth = mwifiex_cfg80211_authenticate;
4724 ops->assoc = mwifiex_cfg80211_associate;
4725 ops->deauth = mwifiex_cfg80211_deauthenticate;
4726 ops->disassoc = mwifiex_cfg80211_disassociate;
4727 ops->disconnect = NULL;
4728 ops->connect = NULL;
4729 ops->probe_client = mwifiex_cfg80211_probe_client;
4730 }
4731 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4732 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4733 if (adapter->host_mlme_enabled) {
4734 memcpy(adapter->mwifiex_mgmt_stypes,
4735 mwifiex_mgmt_stypes,
4736 NUM_NL80211_IFTYPES *
4737 sizeof(struct ieee80211_txrx_stypes));
4738
4739 adapter->mwifiex_mgmt_stypes[NL80211_IFTYPE_AP].tx = 0xffff;
4740 adapter->mwifiex_mgmt_stypes[NL80211_IFTYPE_AP].rx =
4741 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
4742 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
4743 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
4744 BIT(IEEE80211_STYPE_DISASSOC >> 4) |
4745 BIT(IEEE80211_STYPE_AUTH >> 4) |
4746 BIT(IEEE80211_STYPE_DEAUTH >> 4) |
4747 BIT(IEEE80211_STYPE_ACTION >> 4);
4748 wiphy->mgmt_stypes = adapter->mwifiex_mgmt_stypes;
4749 } else {
4750 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4751 }
4752 wiphy->max_remain_on_channel_duration = 5000;
4753 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4754 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4755 BIT(NL80211_IFTYPE_P2P_GO) |
4756 BIT(NL80211_IFTYPE_AP);
4757
4758 wiphy->max_num_akm_suites = CFG80211_MAX_NUM_AKM_SUITES;
4759
4760 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4761 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4762
4763 wiphy->bands[NL80211_BAND_2GHZ] = devm_kmemdup(adapter->dev,
4764 &mwifiex_band_2ghz,
4765 sizeof(mwifiex_band_2ghz),
4766 GFP_KERNEL);
4767 if (!wiphy->bands[NL80211_BAND_2GHZ]) {
4768 ret = -ENOMEM;
4769 goto err;
4770 }
4771
4772 if (adapter->config_bands & BAND_A) {
4773 wiphy->bands[NL80211_BAND_5GHZ] = devm_kmemdup(adapter->dev,
4774 &mwifiex_band_5ghz,
4775 sizeof(mwifiex_band_5ghz),
4776 GFP_KERNEL);
4777 if (!wiphy->bands[NL80211_BAND_5GHZ]) {
4778 ret = -ENOMEM;
4779 goto err;
4780 }
4781 } else {
4782 wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4783 }
4784
4785 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4786 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4787 else if (adapter->is_hw_11ac_capable)
4788 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4789 else
4790 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4791 wiphy->n_iface_combinations = 1;
4792
4793 if (adapter->max_sta_conn > adapter->max_p2p_conn)
4794 wiphy->max_ap_assoc_sta = adapter->max_sta_conn;
4795 else
4796 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn;
4797
4798 /* Initialize cipher suits */
4799 wiphy->cipher_suites = mwifiex_cipher_suites;
4800 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4801
4802 if (adapter->regd) {
4803 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4804 REGULATORY_DISABLE_BEACON_HINTS |
4805 REGULATORY_COUNTRY_IE_IGNORE;
4806 wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4807 }
4808
4809 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4810 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4811 wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4812 WIPHY_FLAG_AP_UAPSD |
4813 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4814 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4815 WIPHY_FLAG_NETNS_OK |
4816 WIPHY_FLAG_PS_ON_BY_DEFAULT;
4817
4818 if (adapter->host_mlme_enabled)
4819 wiphy->flags |= WIPHY_FLAG_REPORTS_OBSS;
4820 else
4821 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME;
4822
4823 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4824 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4825 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4826
4827 #ifdef CONFIG_PM
4828 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4829 wiphy->wowlan = &mwifiex_wowlan_support;
4830 else
4831 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4832 #endif
4833
4834 wiphy->coalesce = &mwifiex_coalesce_support;
4835
4836 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4837 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4838 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4839
4840 wiphy->max_sched_scan_reqs = 1;
4841 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4842 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4843 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4844
4845 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4846 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4847
4848 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4849 NL80211_FEATURE_LOW_PRIORITY_SCAN |
4850 NL80211_FEATURE_NEED_OBSS_SCAN;
4851
4852 if (adapter->host_mlme_enabled)
4853 wiphy->features |= NL80211_FEATURE_SAE;
4854
4855 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4856 wiphy->features |= NL80211_FEATURE_HT_IBSS;
4857
4858 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4859 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4860 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4861 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4862
4863 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4864 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4865
4866 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4867 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4868
4869 /* Reserve space for mwifiex specific private data for BSS */
4870 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4871
4872 wiphy->reg_notifier = mwifiex_reg_notifier;
4873
4874 /* Set struct mwifiex_adapter pointer in wiphy_priv */
4875 wdev_priv = wiphy_priv(wiphy);
4876 *(unsigned long *)wdev_priv = (unsigned long)adapter;
4877
4878 set_wiphy_dev(wiphy, priv->adapter->dev);
4879
4880 ret = wiphy_register(wiphy);
4881 if (ret < 0) {
4882 mwifiex_dbg(adapter, ERROR,
4883 "%s: wiphy_register failed: %d\n", __func__, ret);
4884 goto err;
4885 }
4886
4887 if (!adapter->regd) {
4888 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4889 mwifiex_dbg(adapter, INFO,
4890 "driver hint alpha2: %2.2s\n", reg_alpha2);
4891 regulatory_hint(wiphy, reg_alpha2);
4892 } else {
4893 if (adapter->region_code == 0x00) {
4894 mwifiex_dbg(adapter, WARN,
4895 "Ignore world regulatory domain\n");
4896 } else {
4897 wiphy->regulatory_flags |=
4898 REGULATORY_DISABLE_BEACON_HINTS |
4899 REGULATORY_COUNTRY_IE_IGNORE;
4900 country_code =
4901 mwifiex_11d_code_2_region(
4902 adapter->region_code);
4903 if (country_code &&
4904 regulatory_hint(wiphy, country_code))
4905 mwifiex_dbg(priv->adapter, ERROR,
4906 "regulatory_hint() failed\n");
4907 }
4908 }
4909 }
4910
4911 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4912 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4913 wiphy->frag_threshold = thr;
4914 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4915 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4916 wiphy->rts_threshold = thr;
4917 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4918 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4919 wiphy->retry_short = (u8) retry;
4920 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4921 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4922 wiphy->retry_long = (u8) retry;
4923
4924 adapter->wiphy = wiphy;
4925 return ret;
4926
4927 err:
4928 wiphy_free(wiphy);
4929
4930 return ret;
4931 }
4932