1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2014 Intel Mobile Communications GmbH 6 * 7 * This file is GPLv2 as found in COPYING. 8 */ 9 10 #include <linux/ieee80211.h> 11 #include <linux/nl80211.h> 12 #include <linux/rtnetlink.h> 13 #include <linux/slab.h> 14 #include <net/net_namespace.h> 15 #include <linux/rcupdate.h> 16 #include <linux/if_ether.h> 17 #include <net/cfg80211.h> 18 #include "ieee80211_i.h" 19 #include "driver-ops.h" 20 #include "cfg.h" 21 #include "rate.h" 22 #include "mesh.h" 23 #include "wme.h" 24 25 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 26 const char *name, 27 enum nl80211_iftype type, 28 u32 *flags, 29 struct vif_params *params) 30 { 31 struct ieee80211_local *local = wiphy_priv(wiphy); 32 struct wireless_dev *wdev; 33 struct ieee80211_sub_if_data *sdata; 34 int err; 35 36 err = ieee80211_if_add(local, name, &wdev, type, params); 37 if (err) 38 return ERR_PTR(err); 39 40 if (type == NL80211_IFTYPE_MONITOR && flags) { 41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 42 sdata->u.mntr_flags = *flags; 43 } 44 45 return wdev; 46 } 47 48 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 49 { 50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 51 52 return 0; 53 } 54 55 static int ieee80211_change_iface(struct wiphy *wiphy, 56 struct net_device *dev, 57 enum nl80211_iftype type, u32 *flags, 58 struct vif_params *params) 59 { 60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 61 int ret; 62 63 ret = ieee80211_if_change_type(sdata, type); 64 if (ret) 65 return ret; 66 67 if (type == NL80211_IFTYPE_AP_VLAN && 68 params && params->use_4addr == 0) 69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 70 else if (type == NL80211_IFTYPE_STATION && 71 params && params->use_4addr >= 0) 72 sdata->u.mgd.use_4addr = params->use_4addr; 73 74 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { 75 struct ieee80211_local *local = sdata->local; 76 77 if (ieee80211_sdata_running(sdata)) { 78 u32 mask = MONITOR_FLAG_COOK_FRAMES | 79 MONITOR_FLAG_ACTIVE; 80 81 /* 82 * Prohibit MONITOR_FLAG_COOK_FRAMES and 83 * MONITOR_FLAG_ACTIVE to be changed while the 84 * interface is up. 85 * Else we would need to add a lot of cruft 86 * to update everything: 87 * cooked_mntrs, monitor and all fif_* counters 88 * reconfigure hardware 89 */ 90 if ((*flags & mask) != (sdata->u.mntr_flags & mask)) 91 return -EBUSY; 92 93 ieee80211_adjust_monitor_flags(sdata, -1); 94 sdata->u.mntr_flags = *flags; 95 ieee80211_adjust_monitor_flags(sdata, 1); 96 97 ieee80211_configure_filter(local); 98 } else { 99 /* 100 * Because the interface is down, ieee80211_do_stop 101 * and ieee80211_do_open take care of "everything" 102 * mentioned in the comment above. 103 */ 104 sdata->u.mntr_flags = *flags; 105 } 106 } 107 108 return 0; 109 } 110 111 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 112 struct wireless_dev *wdev) 113 { 114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 115 int ret; 116 117 mutex_lock(&sdata->local->chanctx_mtx); 118 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 119 mutex_unlock(&sdata->local->chanctx_mtx); 120 if (ret < 0) 121 return ret; 122 123 return ieee80211_do_open(wdev, true); 124 } 125 126 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 127 struct wireless_dev *wdev) 128 { 129 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 130 } 131 132 static int ieee80211_set_noack_map(struct wiphy *wiphy, 133 struct net_device *dev, 134 u16 noack_map) 135 { 136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 137 138 sdata->noack_map = noack_map; 139 return 0; 140 } 141 142 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 143 u8 key_idx, bool pairwise, const u8 *mac_addr, 144 struct key_params *params) 145 { 146 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 147 struct ieee80211_local *local = sdata->local; 148 struct sta_info *sta = NULL; 149 const struct ieee80211_cipher_scheme *cs = NULL; 150 struct ieee80211_key *key; 151 int err; 152 153 if (!ieee80211_sdata_running(sdata)) 154 return -ENETDOWN; 155 156 /* reject WEP and TKIP keys if WEP failed to initialize */ 157 switch (params->cipher) { 158 case WLAN_CIPHER_SUITE_WEP40: 159 case WLAN_CIPHER_SUITE_TKIP: 160 case WLAN_CIPHER_SUITE_WEP104: 161 if (IS_ERR(local->wep_tx_tfm)) 162 return -EINVAL; 163 break; 164 case WLAN_CIPHER_SUITE_CCMP: 165 case WLAN_CIPHER_SUITE_AES_CMAC: 166 case WLAN_CIPHER_SUITE_GCMP: 167 break; 168 default: 169 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 170 break; 171 } 172 173 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 174 params->key, params->seq_len, params->seq, 175 cs); 176 if (IS_ERR(key)) 177 return PTR_ERR(key); 178 179 if (pairwise) 180 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 181 182 mutex_lock(&local->sta_mtx); 183 184 if (mac_addr) { 185 if (ieee80211_vif_is_mesh(&sdata->vif)) 186 sta = sta_info_get(sdata, mac_addr); 187 else 188 sta = sta_info_get_bss(sdata, mac_addr); 189 /* 190 * The ASSOC test makes sure the driver is ready to 191 * receive the key. When wpa_supplicant has roamed 192 * using FT, it attempts to set the key before 193 * association has completed, this rejects that attempt 194 * so it will set the key again after association. 195 * 196 * TODO: accept the key if we have a station entry and 197 * add it to the device after the station. 198 */ 199 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 200 ieee80211_key_free_unused(key); 201 err = -ENOENT; 202 goto out_unlock; 203 } 204 } 205 206 switch (sdata->vif.type) { 207 case NL80211_IFTYPE_STATION: 208 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 209 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 210 break; 211 case NL80211_IFTYPE_AP: 212 case NL80211_IFTYPE_AP_VLAN: 213 /* Keys without a station are used for TX only */ 214 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 215 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 216 break; 217 case NL80211_IFTYPE_ADHOC: 218 /* no MFP (yet) */ 219 break; 220 case NL80211_IFTYPE_MESH_POINT: 221 #ifdef CONFIG_MAC80211_MESH 222 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 223 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 224 break; 225 #endif 226 case NL80211_IFTYPE_WDS: 227 case NL80211_IFTYPE_MONITOR: 228 case NL80211_IFTYPE_P2P_DEVICE: 229 case NL80211_IFTYPE_UNSPECIFIED: 230 case NUM_NL80211_IFTYPES: 231 case NL80211_IFTYPE_P2P_CLIENT: 232 case NL80211_IFTYPE_P2P_GO: 233 case NL80211_IFTYPE_OCB: 234 /* shouldn't happen */ 235 WARN_ON_ONCE(1); 236 break; 237 } 238 239 if (sta) 240 sta->cipher_scheme = cs; 241 242 err = ieee80211_key_link(key, sdata, sta); 243 244 out_unlock: 245 mutex_unlock(&local->sta_mtx); 246 247 return err; 248 } 249 250 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 251 u8 key_idx, bool pairwise, const u8 *mac_addr) 252 { 253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 254 struct ieee80211_local *local = sdata->local; 255 struct sta_info *sta; 256 struct ieee80211_key *key = NULL; 257 int ret; 258 259 mutex_lock(&local->sta_mtx); 260 mutex_lock(&local->key_mtx); 261 262 if (mac_addr) { 263 ret = -ENOENT; 264 265 sta = sta_info_get_bss(sdata, mac_addr); 266 if (!sta) 267 goto out_unlock; 268 269 if (pairwise) 270 key = key_mtx_dereference(local, sta->ptk[key_idx]); 271 else 272 key = key_mtx_dereference(local, sta->gtk[key_idx]); 273 } else 274 key = key_mtx_dereference(local, sdata->keys[key_idx]); 275 276 if (!key) { 277 ret = -ENOENT; 278 goto out_unlock; 279 } 280 281 ieee80211_key_free(key, true); 282 283 ret = 0; 284 out_unlock: 285 mutex_unlock(&local->key_mtx); 286 mutex_unlock(&local->sta_mtx); 287 288 return ret; 289 } 290 291 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 292 u8 key_idx, bool pairwise, const u8 *mac_addr, 293 void *cookie, 294 void (*callback)(void *cookie, 295 struct key_params *params)) 296 { 297 struct ieee80211_sub_if_data *sdata; 298 struct sta_info *sta = NULL; 299 u8 seq[6] = {0}; 300 struct key_params params; 301 struct ieee80211_key *key = NULL; 302 u64 pn64; 303 u32 iv32; 304 u16 iv16; 305 int err = -ENOENT; 306 307 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 308 309 rcu_read_lock(); 310 311 if (mac_addr) { 312 sta = sta_info_get_bss(sdata, mac_addr); 313 if (!sta) 314 goto out; 315 316 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 317 key = rcu_dereference(sta->ptk[key_idx]); 318 else if (!pairwise && 319 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 320 key = rcu_dereference(sta->gtk[key_idx]); 321 } else 322 key = rcu_dereference(sdata->keys[key_idx]); 323 324 if (!key) 325 goto out; 326 327 memset(¶ms, 0, sizeof(params)); 328 329 params.cipher = key->conf.cipher; 330 331 switch (key->conf.cipher) { 332 case WLAN_CIPHER_SUITE_TKIP: 333 iv32 = key->u.tkip.tx.iv32; 334 iv16 = key->u.tkip.tx.iv16; 335 336 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 337 drv_get_tkip_seq(sdata->local, 338 key->conf.hw_key_idx, 339 &iv32, &iv16); 340 341 seq[0] = iv16 & 0xff; 342 seq[1] = (iv16 >> 8) & 0xff; 343 seq[2] = iv32 & 0xff; 344 seq[3] = (iv32 >> 8) & 0xff; 345 seq[4] = (iv32 >> 16) & 0xff; 346 seq[5] = (iv32 >> 24) & 0xff; 347 params.seq = seq; 348 params.seq_len = 6; 349 break; 350 case WLAN_CIPHER_SUITE_CCMP: 351 pn64 = atomic64_read(&key->u.ccmp.tx_pn); 352 seq[0] = pn64; 353 seq[1] = pn64 >> 8; 354 seq[2] = pn64 >> 16; 355 seq[3] = pn64 >> 24; 356 seq[4] = pn64 >> 32; 357 seq[5] = pn64 >> 40; 358 params.seq = seq; 359 params.seq_len = 6; 360 break; 361 case WLAN_CIPHER_SUITE_AES_CMAC: 362 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); 363 seq[0] = pn64; 364 seq[1] = pn64 >> 8; 365 seq[2] = pn64 >> 16; 366 seq[3] = pn64 >> 24; 367 seq[4] = pn64 >> 32; 368 seq[5] = pn64 >> 40; 369 params.seq = seq; 370 params.seq_len = 6; 371 break; 372 } 373 374 params.key = key->conf.key; 375 params.key_len = key->conf.keylen; 376 377 callback(cookie, ¶ms); 378 err = 0; 379 380 out: 381 rcu_read_unlock(); 382 return err; 383 } 384 385 static int ieee80211_config_default_key(struct wiphy *wiphy, 386 struct net_device *dev, 387 u8 key_idx, bool uni, 388 bool multi) 389 { 390 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 391 392 ieee80211_set_default_key(sdata, key_idx, uni, multi); 393 394 return 0; 395 } 396 397 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 398 struct net_device *dev, 399 u8 key_idx) 400 { 401 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 402 403 ieee80211_set_default_mgmt_key(sdata, key_idx); 404 405 return 0; 406 } 407 408 void sta_set_rate_info_tx(struct sta_info *sta, 409 const struct ieee80211_tx_rate *rate, 410 struct rate_info *rinfo) 411 { 412 rinfo->flags = 0; 413 if (rate->flags & IEEE80211_TX_RC_MCS) { 414 rinfo->flags |= RATE_INFO_FLAGS_MCS; 415 rinfo->mcs = rate->idx; 416 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 417 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 418 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 419 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 420 } else { 421 struct ieee80211_supported_band *sband; 422 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 423 u16 brate; 424 425 sband = sta->local->hw.wiphy->bands[ 426 ieee80211_get_sdata_band(sta->sdata)]; 427 brate = sband->bitrates[rate->idx].bitrate; 428 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 429 } 430 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 431 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 432 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 433 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 434 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 435 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 436 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 437 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 438 } 439 440 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) 441 { 442 rinfo->flags = 0; 443 444 if (sta->last_rx_rate_flag & RX_FLAG_HT) { 445 rinfo->flags |= RATE_INFO_FLAGS_MCS; 446 rinfo->mcs = sta->last_rx_rate_idx; 447 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { 448 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 449 rinfo->nss = sta->last_rx_rate_vht_nss; 450 rinfo->mcs = sta->last_rx_rate_idx; 451 } else { 452 struct ieee80211_supported_band *sband; 453 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 454 u16 brate; 455 456 sband = sta->local->hw.wiphy->bands[ 457 ieee80211_get_sdata_band(sta->sdata)]; 458 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; 459 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 460 } 461 462 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 463 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 464 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 465 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 466 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ) 467 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 468 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ) 469 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; 470 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ) 471 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 472 } 473 474 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 475 int idx, u8 *mac, struct station_info *sinfo) 476 { 477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 478 struct ieee80211_local *local = sdata->local; 479 struct sta_info *sta; 480 int ret = -ENOENT; 481 482 mutex_lock(&local->sta_mtx); 483 484 sta = sta_info_get_by_idx(sdata, idx); 485 if (sta) { 486 ret = 0; 487 memcpy(mac, sta->sta.addr, ETH_ALEN); 488 sta_set_sinfo(sta, sinfo); 489 } 490 491 mutex_unlock(&local->sta_mtx); 492 493 return ret; 494 } 495 496 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 497 int idx, struct survey_info *survey) 498 { 499 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 500 501 return drv_get_survey(local, idx, survey); 502 } 503 504 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 505 const u8 *mac, struct station_info *sinfo) 506 { 507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 508 struct ieee80211_local *local = sdata->local; 509 struct sta_info *sta; 510 int ret = -ENOENT; 511 512 mutex_lock(&local->sta_mtx); 513 514 sta = sta_info_get_bss(sdata, mac); 515 if (sta) { 516 ret = 0; 517 sta_set_sinfo(sta, sinfo); 518 } 519 520 mutex_unlock(&local->sta_mtx); 521 522 return ret; 523 } 524 525 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 526 struct cfg80211_chan_def *chandef) 527 { 528 struct ieee80211_local *local = wiphy_priv(wiphy); 529 struct ieee80211_sub_if_data *sdata; 530 int ret = 0; 531 532 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 533 return 0; 534 535 mutex_lock(&local->mtx); 536 mutex_lock(&local->iflist_mtx); 537 if (local->use_chanctx) { 538 sdata = rcu_dereference_protected( 539 local->monitor_sdata, 540 lockdep_is_held(&local->iflist_mtx)); 541 if (sdata) { 542 ieee80211_vif_release_channel(sdata); 543 ret = ieee80211_vif_use_channel(sdata, chandef, 544 IEEE80211_CHANCTX_EXCLUSIVE); 545 } 546 } else if (local->open_count == local->monitors) { 547 local->_oper_chandef = *chandef; 548 ieee80211_hw_config(local, 0); 549 } 550 551 if (ret == 0) 552 local->monitor_chandef = *chandef; 553 mutex_unlock(&local->iflist_mtx); 554 mutex_unlock(&local->mtx); 555 556 return ret; 557 } 558 559 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 560 const u8 *resp, size_t resp_len, 561 const struct ieee80211_csa_settings *csa) 562 { 563 struct probe_resp *new, *old; 564 565 if (!resp || !resp_len) 566 return 1; 567 568 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 569 570 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 571 if (!new) 572 return -ENOMEM; 573 574 new->len = resp_len; 575 memcpy(new->data, resp, resp_len); 576 577 if (csa) 578 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 579 csa->n_counter_offsets_presp * 580 sizeof(new->csa_counter_offsets[0])); 581 582 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 583 if (old) 584 kfree_rcu(old, rcu_head); 585 586 return 0; 587 } 588 589 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 590 struct cfg80211_beacon_data *params, 591 const struct ieee80211_csa_settings *csa) 592 { 593 struct beacon_data *new, *old; 594 int new_head_len, new_tail_len; 595 int size, err; 596 u32 changed = BSS_CHANGED_BEACON; 597 598 old = sdata_dereference(sdata->u.ap.beacon, sdata); 599 600 601 /* Need to have a beacon head if we don't have one yet */ 602 if (!params->head && !old) 603 return -EINVAL; 604 605 /* new or old head? */ 606 if (params->head) 607 new_head_len = params->head_len; 608 else 609 new_head_len = old->head_len; 610 611 /* new or old tail? */ 612 if (params->tail || !old) 613 /* params->tail_len will be zero for !params->tail */ 614 new_tail_len = params->tail_len; 615 else 616 new_tail_len = old->tail_len; 617 618 size = sizeof(*new) + new_head_len + new_tail_len; 619 620 new = kzalloc(size, GFP_KERNEL); 621 if (!new) 622 return -ENOMEM; 623 624 /* start filling the new info now */ 625 626 /* 627 * pointers go into the block we allocated, 628 * memory is | beacon_data | head | tail | 629 */ 630 new->head = ((u8 *) new) + sizeof(*new); 631 new->tail = new->head + new_head_len; 632 new->head_len = new_head_len; 633 new->tail_len = new_tail_len; 634 635 if (csa) { 636 new->csa_current_counter = csa->count; 637 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 638 csa->n_counter_offsets_beacon * 639 sizeof(new->csa_counter_offsets[0])); 640 } 641 642 /* copy in head */ 643 if (params->head) 644 memcpy(new->head, params->head, new_head_len); 645 else 646 memcpy(new->head, old->head, new_head_len); 647 648 /* copy in optional tail */ 649 if (params->tail) 650 memcpy(new->tail, params->tail, new_tail_len); 651 else 652 if (old) 653 memcpy(new->tail, old->tail, new_tail_len); 654 655 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 656 params->probe_resp_len, csa); 657 if (err < 0) 658 return err; 659 if (err == 0) 660 changed |= BSS_CHANGED_AP_PROBE_RESP; 661 662 rcu_assign_pointer(sdata->u.ap.beacon, new); 663 664 if (old) 665 kfree_rcu(old, rcu_head); 666 667 return changed; 668 } 669 670 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 671 struct cfg80211_ap_settings *params) 672 { 673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 674 struct ieee80211_local *local = sdata->local; 675 struct beacon_data *old; 676 struct ieee80211_sub_if_data *vlan; 677 u32 changed = BSS_CHANGED_BEACON_INT | 678 BSS_CHANGED_BEACON_ENABLED | 679 BSS_CHANGED_BEACON | 680 BSS_CHANGED_SSID | 681 BSS_CHANGED_P2P_PS; 682 int err; 683 684 old = sdata_dereference(sdata->u.ap.beacon, sdata); 685 if (old) 686 return -EALREADY; 687 688 switch (params->smps_mode) { 689 case NL80211_SMPS_OFF: 690 sdata->smps_mode = IEEE80211_SMPS_OFF; 691 break; 692 case NL80211_SMPS_STATIC: 693 sdata->smps_mode = IEEE80211_SMPS_STATIC; 694 break; 695 case NL80211_SMPS_DYNAMIC: 696 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 697 break; 698 default: 699 return -EINVAL; 700 } 701 sdata->needed_rx_chains = sdata->local->rx_chains; 702 703 mutex_lock(&local->mtx); 704 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 705 IEEE80211_CHANCTX_SHARED); 706 if (!err) 707 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 708 mutex_unlock(&local->mtx); 709 if (err) 710 return err; 711 712 /* 713 * Apply control port protocol, this allows us to 714 * not encrypt dynamic WEP control frames. 715 */ 716 sdata->control_port_protocol = params->crypto.control_port_ethertype; 717 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 718 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 719 ¶ms->crypto, 720 sdata->vif.type); 721 722 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 723 vlan->control_port_protocol = 724 params->crypto.control_port_ethertype; 725 vlan->control_port_no_encrypt = 726 params->crypto.control_port_no_encrypt; 727 vlan->encrypt_headroom = 728 ieee80211_cs_headroom(sdata->local, 729 ¶ms->crypto, 730 vlan->vif.type); 731 } 732 733 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 734 sdata->vif.bss_conf.dtim_period = params->dtim_period; 735 sdata->vif.bss_conf.enable_beacon = true; 736 737 sdata->vif.bss_conf.ssid_len = params->ssid_len; 738 if (params->ssid_len) 739 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 740 params->ssid_len); 741 sdata->vif.bss_conf.hidden_ssid = 742 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 743 744 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 745 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 746 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 747 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 748 if (params->p2p_opp_ps) 749 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 750 IEEE80211_P2P_OPPPS_ENABLE_BIT; 751 752 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 753 if (err < 0) { 754 ieee80211_vif_release_channel(sdata); 755 return err; 756 } 757 changed |= err; 758 759 err = drv_start_ap(sdata->local, sdata); 760 if (err) { 761 old = sdata_dereference(sdata->u.ap.beacon, sdata); 762 763 if (old) 764 kfree_rcu(old, rcu_head); 765 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 766 ieee80211_vif_release_channel(sdata); 767 return err; 768 } 769 770 ieee80211_recalc_dtim(local, sdata); 771 ieee80211_bss_info_change_notify(sdata, changed); 772 773 netif_carrier_on(dev); 774 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 775 netif_carrier_on(vlan->dev); 776 777 return 0; 778 } 779 780 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 781 struct cfg80211_beacon_data *params) 782 { 783 struct ieee80211_sub_if_data *sdata; 784 struct beacon_data *old; 785 int err; 786 787 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 788 sdata_assert_lock(sdata); 789 790 /* don't allow changing the beacon while CSA is in place - offset 791 * of channel switch counter may change 792 */ 793 if (sdata->vif.csa_active) 794 return -EBUSY; 795 796 old = sdata_dereference(sdata->u.ap.beacon, sdata); 797 if (!old) 798 return -ENOENT; 799 800 err = ieee80211_assign_beacon(sdata, params, NULL); 801 if (err < 0) 802 return err; 803 ieee80211_bss_info_change_notify(sdata, err); 804 return 0; 805 } 806 807 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 808 { 809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 810 struct ieee80211_sub_if_data *vlan; 811 struct ieee80211_local *local = sdata->local; 812 struct beacon_data *old_beacon; 813 struct probe_resp *old_probe_resp; 814 struct cfg80211_chan_def chandef; 815 816 sdata_assert_lock(sdata); 817 818 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 819 if (!old_beacon) 820 return -ENOENT; 821 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 822 823 /* abort any running channel switch */ 824 mutex_lock(&local->mtx); 825 sdata->vif.csa_active = false; 826 if (sdata->csa_block_tx) { 827 ieee80211_wake_vif_queues(local, sdata, 828 IEEE80211_QUEUE_STOP_REASON_CSA); 829 sdata->csa_block_tx = false; 830 } 831 832 mutex_unlock(&local->mtx); 833 834 kfree(sdata->u.ap.next_beacon); 835 sdata->u.ap.next_beacon = NULL; 836 837 /* turn off carrier for this interface and dependent VLANs */ 838 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 839 netif_carrier_off(vlan->dev); 840 netif_carrier_off(dev); 841 842 /* remove beacon and probe response */ 843 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 844 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 845 kfree_rcu(old_beacon, rcu_head); 846 if (old_probe_resp) 847 kfree_rcu(old_probe_resp, rcu_head); 848 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 849 850 __sta_info_flush(sdata, true); 851 ieee80211_free_keys(sdata, true); 852 853 sdata->vif.bss_conf.enable_beacon = false; 854 sdata->vif.bss_conf.ssid_len = 0; 855 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 856 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 857 858 if (sdata->wdev.cac_started) { 859 chandef = sdata->vif.bss_conf.chandef; 860 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 861 cfg80211_cac_event(sdata->dev, &chandef, 862 NL80211_RADAR_CAC_ABORTED, 863 GFP_KERNEL); 864 } 865 866 drv_stop_ap(sdata->local, sdata); 867 868 /* free all potentially still buffered bcast frames */ 869 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 870 skb_queue_purge(&sdata->u.ap.ps.bc_buf); 871 872 mutex_lock(&local->mtx); 873 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 874 ieee80211_vif_release_channel(sdata); 875 mutex_unlock(&local->mtx); 876 877 return 0; 878 } 879 880 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 881 struct iapp_layer2_update { 882 u8 da[ETH_ALEN]; /* broadcast */ 883 u8 sa[ETH_ALEN]; /* STA addr */ 884 __be16 len; /* 6 */ 885 u8 dsap; /* 0 */ 886 u8 ssap; /* 0 */ 887 u8 control; 888 u8 xid_info[3]; 889 } __packed; 890 891 static void ieee80211_send_layer2_update(struct sta_info *sta) 892 { 893 struct iapp_layer2_update *msg; 894 struct sk_buff *skb; 895 896 /* Send Level 2 Update Frame to update forwarding tables in layer 2 897 * bridge devices */ 898 899 skb = dev_alloc_skb(sizeof(*msg)); 900 if (!skb) 901 return; 902 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 903 904 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 905 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 906 907 eth_broadcast_addr(msg->da); 908 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 909 msg->len = htons(6); 910 msg->dsap = 0; 911 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 912 msg->control = 0xaf; /* XID response lsb.1111F101. 913 * F=0 (no poll command; unsolicited frame) */ 914 msg->xid_info[0] = 0x81; /* XID format identifier */ 915 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 916 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 917 918 skb->dev = sta->sdata->dev; 919 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 920 memset(skb->cb, 0, sizeof(skb->cb)); 921 netif_rx_ni(skb); 922 } 923 924 static int sta_apply_auth_flags(struct ieee80211_local *local, 925 struct sta_info *sta, 926 u32 mask, u32 set) 927 { 928 int ret; 929 930 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 931 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 932 !test_sta_flag(sta, WLAN_STA_AUTH)) { 933 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 934 if (ret) 935 return ret; 936 } 937 938 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 939 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 940 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 941 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 942 if (ret) 943 return ret; 944 } 945 946 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 947 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 948 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 949 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 950 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 951 else 952 ret = 0; 953 if (ret) 954 return ret; 955 } 956 957 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 958 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 959 test_sta_flag(sta, WLAN_STA_ASSOC)) { 960 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 961 if (ret) 962 return ret; 963 } 964 965 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 966 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 967 test_sta_flag(sta, WLAN_STA_AUTH)) { 968 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 969 if (ret) 970 return ret; 971 } 972 973 return 0; 974 } 975 976 static int sta_apply_parameters(struct ieee80211_local *local, 977 struct sta_info *sta, 978 struct station_parameters *params) 979 { 980 int ret = 0; 981 struct ieee80211_supported_band *sband; 982 struct ieee80211_sub_if_data *sdata = sta->sdata; 983 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 984 u32 mask, set; 985 986 sband = local->hw.wiphy->bands[band]; 987 988 mask = params->sta_flags_mask; 989 set = params->sta_flags_set; 990 991 if (ieee80211_vif_is_mesh(&sdata->vif)) { 992 /* 993 * In mesh mode, ASSOCIATED isn't part of the nl80211 994 * API but must follow AUTHENTICATED for driver state. 995 */ 996 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 997 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 998 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 999 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1000 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1001 /* 1002 * TDLS -- everything follows authorized, but 1003 * only becoming authorized is possible, not 1004 * going back 1005 */ 1006 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1007 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1008 BIT(NL80211_STA_FLAG_ASSOCIATED); 1009 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1010 BIT(NL80211_STA_FLAG_ASSOCIATED); 1011 } 1012 } 1013 1014 /* auth flags will be set later for TDLS stations */ 1015 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1016 ret = sta_apply_auth_flags(local, sta, mask, set); 1017 if (ret) 1018 return ret; 1019 } 1020 1021 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1022 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1023 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1024 else 1025 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1026 } 1027 1028 if (mask & BIT(NL80211_STA_FLAG_WME)) 1029 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1030 1031 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1032 if (set & BIT(NL80211_STA_FLAG_MFP)) 1033 set_sta_flag(sta, WLAN_STA_MFP); 1034 else 1035 clear_sta_flag(sta, WLAN_STA_MFP); 1036 } 1037 1038 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1039 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1040 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1041 else 1042 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1043 } 1044 1045 /* mark TDLS channel switch support, if the AP allows it */ 1046 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1047 !sdata->u.mgd.tdls_chan_switch_prohibited && 1048 params->ext_capab_len >= 4 && 1049 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1050 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1051 1052 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1053 sta->sta.uapsd_queues = params->uapsd_queues; 1054 sta->sta.max_sp = params->max_sp; 1055 } 1056 1057 /* 1058 * cfg80211 validates this (1-2007) and allows setting the AID 1059 * only when creating a new station entry 1060 */ 1061 if (params->aid) 1062 sta->sta.aid = params->aid; 1063 1064 /* 1065 * Some of the following updates would be racy if called on an 1066 * existing station, via ieee80211_change_station(). However, 1067 * all such changes are rejected by cfg80211 except for updates 1068 * changing the supported rates on an existing but not yet used 1069 * TDLS peer. 1070 */ 1071 1072 if (params->listen_interval >= 0) 1073 sta->listen_interval = params->listen_interval; 1074 1075 if (params->supported_rates) { 1076 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1077 sband, params->supported_rates, 1078 params->supported_rates_len, 1079 &sta->sta.supp_rates[band]); 1080 } 1081 1082 if (params->ht_capa) 1083 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1084 params->ht_capa, sta); 1085 1086 if (params->vht_capa) 1087 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1088 params->vht_capa, sta); 1089 1090 if (params->opmode_notif_used) { 1091 /* returned value is only needed for rc update, but the 1092 * rc isn't initialized here yet, so ignore it 1093 */ 1094 __ieee80211_vht_handle_opmode(sdata, sta, 1095 params->opmode_notif, 1096 band, false); 1097 } 1098 1099 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1100 #ifdef CONFIG_MAC80211_MESH 1101 u32 changed = 0; 1102 1103 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1104 switch (params->plink_state) { 1105 case NL80211_PLINK_ESTAB: 1106 if (sta->plink_state != NL80211_PLINK_ESTAB) 1107 changed = mesh_plink_inc_estab_count( 1108 sdata); 1109 sta->plink_state = params->plink_state; 1110 1111 ieee80211_mps_sta_status_update(sta); 1112 changed |= ieee80211_mps_set_sta_local_pm(sta, 1113 sdata->u.mesh.mshcfg.power_mode); 1114 break; 1115 case NL80211_PLINK_LISTEN: 1116 case NL80211_PLINK_BLOCKED: 1117 case NL80211_PLINK_OPN_SNT: 1118 case NL80211_PLINK_OPN_RCVD: 1119 case NL80211_PLINK_CNF_RCVD: 1120 case NL80211_PLINK_HOLDING: 1121 if (sta->plink_state == NL80211_PLINK_ESTAB) 1122 changed = mesh_plink_dec_estab_count( 1123 sdata); 1124 sta->plink_state = params->plink_state; 1125 1126 ieee80211_mps_sta_status_update(sta); 1127 changed |= ieee80211_mps_set_sta_local_pm(sta, 1128 NL80211_MESH_POWER_UNKNOWN); 1129 break; 1130 default: 1131 /* nothing */ 1132 break; 1133 } 1134 } 1135 1136 switch (params->plink_action) { 1137 case NL80211_PLINK_ACTION_NO_ACTION: 1138 /* nothing */ 1139 break; 1140 case NL80211_PLINK_ACTION_OPEN: 1141 changed |= mesh_plink_open(sta); 1142 break; 1143 case NL80211_PLINK_ACTION_BLOCK: 1144 changed |= mesh_plink_block(sta); 1145 break; 1146 } 1147 1148 if (params->local_pm) 1149 changed |= 1150 ieee80211_mps_set_sta_local_pm(sta, 1151 params->local_pm); 1152 ieee80211_mbss_info_change_notify(sdata, changed); 1153 #endif 1154 } 1155 1156 /* set the STA state after all sta info from usermode has been set */ 1157 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1158 ret = sta_apply_auth_flags(local, sta, mask, set); 1159 if (ret) 1160 return ret; 1161 } 1162 1163 return 0; 1164 } 1165 1166 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1167 const u8 *mac, 1168 struct station_parameters *params) 1169 { 1170 struct ieee80211_local *local = wiphy_priv(wiphy); 1171 struct sta_info *sta; 1172 struct ieee80211_sub_if_data *sdata; 1173 int err; 1174 int layer2_update; 1175 1176 if (params->vlan) { 1177 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1178 1179 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1180 sdata->vif.type != NL80211_IFTYPE_AP) 1181 return -EINVAL; 1182 } else 1183 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1184 1185 if (ether_addr_equal(mac, sdata->vif.addr)) 1186 return -EINVAL; 1187 1188 if (is_multicast_ether_addr(mac)) 1189 return -EINVAL; 1190 1191 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1192 if (!sta) 1193 return -ENOMEM; 1194 1195 /* 1196 * defaults -- if userspace wants something else we'll 1197 * change it accordingly in sta_apply_parameters() 1198 */ 1199 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { 1200 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); 1201 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); 1202 } else { 1203 sta->sta.tdls = true; 1204 } 1205 1206 err = sta_apply_parameters(local, sta, params); 1207 if (err) { 1208 sta_info_free(local, sta); 1209 return err; 1210 } 1211 1212 /* 1213 * for TDLS, rate control should be initialized only when 1214 * rates are known and station is marked authorized 1215 */ 1216 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 1217 rate_control_rate_init(sta); 1218 1219 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1220 sdata->vif.type == NL80211_IFTYPE_AP; 1221 1222 err = sta_info_insert_rcu(sta); 1223 if (err) { 1224 rcu_read_unlock(); 1225 return err; 1226 } 1227 1228 if (layer2_update) 1229 ieee80211_send_layer2_update(sta); 1230 1231 rcu_read_unlock(); 1232 1233 return 0; 1234 } 1235 1236 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1237 struct station_del_parameters *params) 1238 { 1239 struct ieee80211_sub_if_data *sdata; 1240 1241 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1242 1243 if (params->mac) 1244 return sta_info_destroy_addr_bss(sdata, params->mac); 1245 1246 sta_info_flush(sdata); 1247 return 0; 1248 } 1249 1250 static int ieee80211_change_station(struct wiphy *wiphy, 1251 struct net_device *dev, const u8 *mac, 1252 struct station_parameters *params) 1253 { 1254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1255 struct ieee80211_local *local = wiphy_priv(wiphy); 1256 struct sta_info *sta; 1257 struct ieee80211_sub_if_data *vlansdata; 1258 enum cfg80211_station_type statype; 1259 int err; 1260 1261 mutex_lock(&local->sta_mtx); 1262 1263 sta = sta_info_get_bss(sdata, mac); 1264 if (!sta) { 1265 err = -ENOENT; 1266 goto out_err; 1267 } 1268 1269 switch (sdata->vif.type) { 1270 case NL80211_IFTYPE_MESH_POINT: 1271 if (sdata->u.mesh.user_mpm) 1272 statype = CFG80211_STA_MESH_PEER_USER; 1273 else 1274 statype = CFG80211_STA_MESH_PEER_KERNEL; 1275 break; 1276 case NL80211_IFTYPE_ADHOC: 1277 statype = CFG80211_STA_IBSS; 1278 break; 1279 case NL80211_IFTYPE_STATION: 1280 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1281 statype = CFG80211_STA_AP_STA; 1282 break; 1283 } 1284 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1285 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1286 else 1287 statype = CFG80211_STA_TDLS_PEER_SETUP; 1288 break; 1289 case NL80211_IFTYPE_AP: 1290 case NL80211_IFTYPE_AP_VLAN: 1291 statype = CFG80211_STA_AP_CLIENT; 1292 break; 1293 default: 1294 err = -EOPNOTSUPP; 1295 goto out_err; 1296 } 1297 1298 err = cfg80211_check_station_change(wiphy, params, statype); 1299 if (err) 1300 goto out_err; 1301 1302 if (params->vlan && params->vlan != sta->sdata->dev) { 1303 bool prev_4addr = false; 1304 bool new_4addr = false; 1305 1306 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1307 1308 if (params->vlan->ieee80211_ptr->use_4addr) { 1309 if (vlansdata->u.vlan.sta) { 1310 err = -EBUSY; 1311 goto out_err; 1312 } 1313 1314 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1315 new_4addr = true; 1316 } 1317 1318 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1319 sta->sdata->u.vlan.sta) { 1320 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1321 prev_4addr = true; 1322 } 1323 1324 sta->sdata = vlansdata; 1325 1326 if (sta->sta_state == IEEE80211_STA_AUTHORIZED && 1327 prev_4addr != new_4addr) { 1328 if (new_4addr) 1329 atomic_dec(&sta->sdata->bss->num_mcast_sta); 1330 else 1331 atomic_inc(&sta->sdata->bss->num_mcast_sta); 1332 } 1333 1334 ieee80211_send_layer2_update(sta); 1335 } 1336 1337 err = sta_apply_parameters(local, sta, params); 1338 if (err) 1339 goto out_err; 1340 1341 /* When peer becomes authorized, init rate control as well */ 1342 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1343 test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1344 rate_control_rate_init(sta); 1345 1346 mutex_unlock(&local->sta_mtx); 1347 1348 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1349 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1350 sta->known_smps_mode != sta->sdata->bss->req_smps && 1351 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1352 sta_info_tx_streams(sta) != 1) { 1353 ht_dbg(sta->sdata, 1354 "%pM just authorized and MIMO capable - update SMPS\n", 1355 sta->sta.addr); 1356 ieee80211_send_smps_action(sta->sdata, 1357 sta->sdata->bss->req_smps, 1358 sta->sta.addr, 1359 sta->sdata->vif.bss_conf.bssid); 1360 } 1361 1362 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1363 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1364 ieee80211_recalc_ps(local, -1); 1365 ieee80211_recalc_ps_vif(sdata); 1366 } 1367 1368 return 0; 1369 out_err: 1370 mutex_unlock(&local->sta_mtx); 1371 return err; 1372 } 1373 1374 #ifdef CONFIG_MAC80211_MESH 1375 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1376 const u8 *dst, const u8 *next_hop) 1377 { 1378 struct ieee80211_sub_if_data *sdata; 1379 struct mesh_path *mpath; 1380 struct sta_info *sta; 1381 1382 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1383 1384 rcu_read_lock(); 1385 sta = sta_info_get(sdata, next_hop); 1386 if (!sta) { 1387 rcu_read_unlock(); 1388 return -ENOENT; 1389 } 1390 1391 mpath = mesh_path_add(sdata, dst); 1392 if (IS_ERR(mpath)) { 1393 rcu_read_unlock(); 1394 return PTR_ERR(mpath); 1395 } 1396 1397 mesh_path_fix_nexthop(mpath, sta); 1398 1399 rcu_read_unlock(); 1400 return 0; 1401 } 1402 1403 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1404 const u8 *dst) 1405 { 1406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1407 1408 if (dst) 1409 return mesh_path_del(sdata, dst); 1410 1411 mesh_path_flush_by_iface(sdata); 1412 return 0; 1413 } 1414 1415 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1416 const u8 *dst, const u8 *next_hop) 1417 { 1418 struct ieee80211_sub_if_data *sdata; 1419 struct mesh_path *mpath; 1420 struct sta_info *sta; 1421 1422 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1423 1424 rcu_read_lock(); 1425 1426 sta = sta_info_get(sdata, next_hop); 1427 if (!sta) { 1428 rcu_read_unlock(); 1429 return -ENOENT; 1430 } 1431 1432 mpath = mesh_path_lookup(sdata, dst); 1433 if (!mpath) { 1434 rcu_read_unlock(); 1435 return -ENOENT; 1436 } 1437 1438 mesh_path_fix_nexthop(mpath, sta); 1439 1440 rcu_read_unlock(); 1441 return 0; 1442 } 1443 1444 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1445 struct mpath_info *pinfo) 1446 { 1447 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1448 1449 if (next_hop_sta) 1450 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1451 else 1452 memset(next_hop, 0, ETH_ALEN); 1453 1454 memset(pinfo, 0, sizeof(*pinfo)); 1455 1456 pinfo->generation = mesh_paths_generation; 1457 1458 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1459 MPATH_INFO_SN | 1460 MPATH_INFO_METRIC | 1461 MPATH_INFO_EXPTIME | 1462 MPATH_INFO_DISCOVERY_TIMEOUT | 1463 MPATH_INFO_DISCOVERY_RETRIES | 1464 MPATH_INFO_FLAGS; 1465 1466 pinfo->frame_qlen = mpath->frame_queue.qlen; 1467 pinfo->sn = mpath->sn; 1468 pinfo->metric = mpath->metric; 1469 if (time_before(jiffies, mpath->exp_time)) 1470 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1471 pinfo->discovery_timeout = 1472 jiffies_to_msecs(mpath->discovery_timeout); 1473 pinfo->discovery_retries = mpath->discovery_retries; 1474 if (mpath->flags & MESH_PATH_ACTIVE) 1475 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1476 if (mpath->flags & MESH_PATH_RESOLVING) 1477 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1478 if (mpath->flags & MESH_PATH_SN_VALID) 1479 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1480 if (mpath->flags & MESH_PATH_FIXED) 1481 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1482 if (mpath->flags & MESH_PATH_RESOLVED) 1483 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1484 } 1485 1486 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1487 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1488 1489 { 1490 struct ieee80211_sub_if_data *sdata; 1491 struct mesh_path *mpath; 1492 1493 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1494 1495 rcu_read_lock(); 1496 mpath = mesh_path_lookup(sdata, dst); 1497 if (!mpath) { 1498 rcu_read_unlock(); 1499 return -ENOENT; 1500 } 1501 memcpy(dst, mpath->dst, ETH_ALEN); 1502 mpath_set_pinfo(mpath, next_hop, pinfo); 1503 rcu_read_unlock(); 1504 return 0; 1505 } 1506 1507 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1508 int idx, u8 *dst, u8 *next_hop, 1509 struct mpath_info *pinfo) 1510 { 1511 struct ieee80211_sub_if_data *sdata; 1512 struct mesh_path *mpath; 1513 1514 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1515 1516 rcu_read_lock(); 1517 mpath = mesh_path_lookup_by_idx(sdata, idx); 1518 if (!mpath) { 1519 rcu_read_unlock(); 1520 return -ENOENT; 1521 } 1522 memcpy(dst, mpath->dst, ETH_ALEN); 1523 mpath_set_pinfo(mpath, next_hop, pinfo); 1524 rcu_read_unlock(); 1525 return 0; 1526 } 1527 1528 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1529 struct mpath_info *pinfo) 1530 { 1531 memset(pinfo, 0, sizeof(*pinfo)); 1532 memcpy(mpp, mpath->mpp, ETH_ALEN); 1533 1534 pinfo->generation = mpp_paths_generation; 1535 } 1536 1537 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1538 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1539 1540 { 1541 struct ieee80211_sub_if_data *sdata; 1542 struct mesh_path *mpath; 1543 1544 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1545 1546 rcu_read_lock(); 1547 mpath = mpp_path_lookup(sdata, dst); 1548 if (!mpath) { 1549 rcu_read_unlock(); 1550 return -ENOENT; 1551 } 1552 memcpy(dst, mpath->dst, ETH_ALEN); 1553 mpp_set_pinfo(mpath, mpp, pinfo); 1554 rcu_read_unlock(); 1555 return 0; 1556 } 1557 1558 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1559 int idx, u8 *dst, u8 *mpp, 1560 struct mpath_info *pinfo) 1561 { 1562 struct ieee80211_sub_if_data *sdata; 1563 struct mesh_path *mpath; 1564 1565 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1566 1567 rcu_read_lock(); 1568 mpath = mpp_path_lookup_by_idx(sdata, idx); 1569 if (!mpath) { 1570 rcu_read_unlock(); 1571 return -ENOENT; 1572 } 1573 memcpy(dst, mpath->dst, ETH_ALEN); 1574 mpp_set_pinfo(mpath, mpp, pinfo); 1575 rcu_read_unlock(); 1576 return 0; 1577 } 1578 1579 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1580 struct net_device *dev, 1581 struct mesh_config *conf) 1582 { 1583 struct ieee80211_sub_if_data *sdata; 1584 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1585 1586 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1587 return 0; 1588 } 1589 1590 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1591 { 1592 return (mask >> (parm-1)) & 0x1; 1593 } 1594 1595 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1596 const struct mesh_setup *setup) 1597 { 1598 u8 *new_ie; 1599 const u8 *old_ie; 1600 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1601 struct ieee80211_sub_if_data, u.mesh); 1602 1603 /* allocate information elements */ 1604 new_ie = NULL; 1605 old_ie = ifmsh->ie; 1606 1607 if (setup->ie_len) { 1608 new_ie = kmemdup(setup->ie, setup->ie_len, 1609 GFP_KERNEL); 1610 if (!new_ie) 1611 return -ENOMEM; 1612 } 1613 ifmsh->ie_len = setup->ie_len; 1614 ifmsh->ie = new_ie; 1615 kfree(old_ie); 1616 1617 /* now copy the rest of the setup parameters */ 1618 ifmsh->mesh_id_len = setup->mesh_id_len; 1619 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1620 ifmsh->mesh_sp_id = setup->sync_method; 1621 ifmsh->mesh_pp_id = setup->path_sel_proto; 1622 ifmsh->mesh_pm_id = setup->path_metric; 1623 ifmsh->user_mpm = setup->user_mpm; 1624 ifmsh->mesh_auth_id = setup->auth_id; 1625 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1626 if (setup->is_authenticated) 1627 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1628 if (setup->is_secure) 1629 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1630 1631 /* mcast rate setting in Mesh Node */ 1632 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1633 sizeof(setup->mcast_rate)); 1634 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1635 1636 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1637 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1638 1639 return 0; 1640 } 1641 1642 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1643 struct net_device *dev, u32 mask, 1644 const struct mesh_config *nconf) 1645 { 1646 struct mesh_config *conf; 1647 struct ieee80211_sub_if_data *sdata; 1648 struct ieee80211_if_mesh *ifmsh; 1649 1650 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1651 ifmsh = &sdata->u.mesh; 1652 1653 /* Set the config options which we are interested in setting */ 1654 conf = &(sdata->u.mesh.mshcfg); 1655 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1656 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1657 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1658 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1659 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1660 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1661 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1662 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1663 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1664 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1665 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1666 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1667 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1668 conf->element_ttl = nconf->element_ttl; 1669 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1670 if (ifmsh->user_mpm) 1671 return -EBUSY; 1672 conf->auto_open_plinks = nconf->auto_open_plinks; 1673 } 1674 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1675 conf->dot11MeshNbrOffsetMaxNeighbor = 1676 nconf->dot11MeshNbrOffsetMaxNeighbor; 1677 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1678 conf->dot11MeshHWMPmaxPREQretries = 1679 nconf->dot11MeshHWMPmaxPREQretries; 1680 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1681 conf->path_refresh_time = nconf->path_refresh_time; 1682 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1683 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1684 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1685 conf->dot11MeshHWMPactivePathTimeout = 1686 nconf->dot11MeshHWMPactivePathTimeout; 1687 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1688 conf->dot11MeshHWMPpreqMinInterval = 1689 nconf->dot11MeshHWMPpreqMinInterval; 1690 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1691 conf->dot11MeshHWMPperrMinInterval = 1692 nconf->dot11MeshHWMPperrMinInterval; 1693 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1694 mask)) 1695 conf->dot11MeshHWMPnetDiameterTraversalTime = 1696 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1697 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1698 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1699 ieee80211_mesh_root_setup(ifmsh); 1700 } 1701 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1702 /* our current gate announcement implementation rides on root 1703 * announcements, so require this ifmsh to also be a root node 1704 * */ 1705 if (nconf->dot11MeshGateAnnouncementProtocol && 1706 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1707 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1708 ieee80211_mesh_root_setup(ifmsh); 1709 } 1710 conf->dot11MeshGateAnnouncementProtocol = 1711 nconf->dot11MeshGateAnnouncementProtocol; 1712 } 1713 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1714 conf->dot11MeshHWMPRannInterval = 1715 nconf->dot11MeshHWMPRannInterval; 1716 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1717 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1718 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1719 /* our RSSI threshold implementation is supported only for 1720 * devices that report signal in dBm. 1721 */ 1722 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) 1723 return -ENOTSUPP; 1724 conf->rssi_threshold = nconf->rssi_threshold; 1725 } 1726 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1727 conf->ht_opmode = nconf->ht_opmode; 1728 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1729 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1730 } 1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1732 conf->dot11MeshHWMPactivePathToRootTimeout = 1733 nconf->dot11MeshHWMPactivePathToRootTimeout; 1734 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1735 conf->dot11MeshHWMProotInterval = 1736 nconf->dot11MeshHWMProotInterval; 1737 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1738 conf->dot11MeshHWMPconfirmationInterval = 1739 nconf->dot11MeshHWMPconfirmationInterval; 1740 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1741 conf->power_mode = nconf->power_mode; 1742 ieee80211_mps_local_status_update(sdata); 1743 } 1744 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1745 conf->dot11MeshAwakeWindowDuration = 1746 nconf->dot11MeshAwakeWindowDuration; 1747 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 1748 conf->plink_timeout = nconf->plink_timeout; 1749 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 1750 return 0; 1751 } 1752 1753 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1754 const struct mesh_config *conf, 1755 const struct mesh_setup *setup) 1756 { 1757 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1758 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1759 int err; 1760 1761 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1762 err = copy_mesh_setup(ifmsh, setup); 1763 if (err) 1764 return err; 1765 1766 /* can mesh use other SMPS modes? */ 1767 sdata->smps_mode = IEEE80211_SMPS_OFF; 1768 sdata->needed_rx_chains = sdata->local->rx_chains; 1769 1770 mutex_lock(&sdata->local->mtx); 1771 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 1772 IEEE80211_CHANCTX_SHARED); 1773 mutex_unlock(&sdata->local->mtx); 1774 if (err) 1775 return err; 1776 1777 return ieee80211_start_mesh(sdata); 1778 } 1779 1780 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1781 { 1782 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1783 1784 ieee80211_stop_mesh(sdata); 1785 mutex_lock(&sdata->local->mtx); 1786 ieee80211_vif_release_channel(sdata); 1787 mutex_unlock(&sdata->local->mtx); 1788 1789 return 0; 1790 } 1791 #endif 1792 1793 static int ieee80211_change_bss(struct wiphy *wiphy, 1794 struct net_device *dev, 1795 struct bss_parameters *params) 1796 { 1797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1798 enum ieee80211_band band; 1799 u32 changed = 0; 1800 1801 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 1802 return -ENOENT; 1803 1804 band = ieee80211_get_sdata_band(sdata); 1805 1806 if (params->use_cts_prot >= 0) { 1807 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1808 changed |= BSS_CHANGED_ERP_CTS_PROT; 1809 } 1810 if (params->use_short_preamble >= 0) { 1811 sdata->vif.bss_conf.use_short_preamble = 1812 params->use_short_preamble; 1813 changed |= BSS_CHANGED_ERP_PREAMBLE; 1814 } 1815 1816 if (!sdata->vif.bss_conf.use_short_slot && 1817 band == IEEE80211_BAND_5GHZ) { 1818 sdata->vif.bss_conf.use_short_slot = true; 1819 changed |= BSS_CHANGED_ERP_SLOT; 1820 } 1821 1822 if (params->use_short_slot_time >= 0) { 1823 sdata->vif.bss_conf.use_short_slot = 1824 params->use_short_slot_time; 1825 changed |= BSS_CHANGED_ERP_SLOT; 1826 } 1827 1828 if (params->basic_rates) { 1829 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1830 wiphy->bands[band], 1831 params->basic_rates, 1832 params->basic_rates_len, 1833 &sdata->vif.bss_conf.basic_rates); 1834 changed |= BSS_CHANGED_BASIC_RATES; 1835 } 1836 1837 if (params->ap_isolate >= 0) { 1838 if (params->ap_isolate) 1839 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1840 else 1841 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1842 } 1843 1844 if (params->ht_opmode >= 0) { 1845 sdata->vif.bss_conf.ht_operation_mode = 1846 (u16) params->ht_opmode; 1847 changed |= BSS_CHANGED_HT; 1848 } 1849 1850 if (params->p2p_ctwindow >= 0) { 1851 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 1852 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1853 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1854 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1855 changed |= BSS_CHANGED_P2P_PS; 1856 } 1857 1858 if (params->p2p_opp_ps > 0) { 1859 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1860 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1861 changed |= BSS_CHANGED_P2P_PS; 1862 } else if (params->p2p_opp_ps == 0) { 1863 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 1864 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 1865 changed |= BSS_CHANGED_P2P_PS; 1866 } 1867 1868 ieee80211_bss_info_change_notify(sdata, changed); 1869 1870 return 0; 1871 } 1872 1873 static int ieee80211_set_txq_params(struct wiphy *wiphy, 1874 struct net_device *dev, 1875 struct ieee80211_txq_params *params) 1876 { 1877 struct ieee80211_local *local = wiphy_priv(wiphy); 1878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1879 struct ieee80211_tx_queue_params p; 1880 1881 if (!local->ops->conf_tx) 1882 return -EOPNOTSUPP; 1883 1884 if (local->hw.queues < IEEE80211_NUM_ACS) 1885 return -EOPNOTSUPP; 1886 1887 memset(&p, 0, sizeof(p)); 1888 p.aifs = params->aifs; 1889 p.cw_max = params->cwmax; 1890 p.cw_min = params->cwmin; 1891 p.txop = params->txop; 1892 1893 /* 1894 * Setting tx queue params disables u-apsd because it's only 1895 * called in master mode. 1896 */ 1897 p.uapsd = false; 1898 1899 sdata->tx_conf[params->ac] = p; 1900 if (drv_conf_tx(local, sdata, params->ac, &p)) { 1901 wiphy_debug(local->hw.wiphy, 1902 "failed to set TX queue parameters for AC %d\n", 1903 params->ac); 1904 return -EINVAL; 1905 } 1906 1907 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 1908 1909 return 0; 1910 } 1911 1912 #ifdef CONFIG_PM 1913 static int ieee80211_suspend(struct wiphy *wiphy, 1914 struct cfg80211_wowlan *wowlan) 1915 { 1916 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 1917 } 1918 1919 static int ieee80211_resume(struct wiphy *wiphy) 1920 { 1921 return __ieee80211_resume(wiphy_priv(wiphy)); 1922 } 1923 #else 1924 #define ieee80211_suspend NULL 1925 #define ieee80211_resume NULL 1926 #endif 1927 1928 static int ieee80211_scan(struct wiphy *wiphy, 1929 struct cfg80211_scan_request *req) 1930 { 1931 struct ieee80211_sub_if_data *sdata; 1932 1933 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 1934 1935 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 1936 case NL80211_IFTYPE_STATION: 1937 case NL80211_IFTYPE_ADHOC: 1938 case NL80211_IFTYPE_MESH_POINT: 1939 case NL80211_IFTYPE_P2P_CLIENT: 1940 case NL80211_IFTYPE_P2P_DEVICE: 1941 break; 1942 case NL80211_IFTYPE_P2P_GO: 1943 if (sdata->local->ops->hw_scan) 1944 break; 1945 /* 1946 * FIXME: implement NoA while scanning in software, 1947 * for now fall through to allow scanning only when 1948 * beaconing hasn't been configured yet 1949 */ 1950 case NL80211_IFTYPE_AP: 1951 /* 1952 * If the scan has been forced (and the driver supports 1953 * forcing), don't care about being beaconing already. 1954 * This will create problems to the attached stations (e.g. all 1955 * the frames sent while scanning on other channel will be 1956 * lost) 1957 */ 1958 if (sdata->u.ap.beacon && 1959 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 1960 !(req->flags & NL80211_SCAN_FLAG_AP))) 1961 return -EOPNOTSUPP; 1962 break; 1963 default: 1964 return -EOPNOTSUPP; 1965 } 1966 1967 return ieee80211_request_scan(sdata, req); 1968 } 1969 1970 static int 1971 ieee80211_sched_scan_start(struct wiphy *wiphy, 1972 struct net_device *dev, 1973 struct cfg80211_sched_scan_request *req) 1974 { 1975 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1976 1977 if (!sdata->local->ops->sched_scan_start) 1978 return -EOPNOTSUPP; 1979 1980 return ieee80211_request_sched_scan_start(sdata, req); 1981 } 1982 1983 static int 1984 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 1985 { 1986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1987 1988 if (!sdata->local->ops->sched_scan_stop) 1989 return -EOPNOTSUPP; 1990 1991 return ieee80211_request_sched_scan_stop(sdata); 1992 } 1993 1994 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 1995 struct cfg80211_auth_request *req) 1996 { 1997 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 1998 } 1999 2000 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2001 struct cfg80211_assoc_request *req) 2002 { 2003 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2004 } 2005 2006 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2007 struct cfg80211_deauth_request *req) 2008 { 2009 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2010 } 2011 2012 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2013 struct cfg80211_disassoc_request *req) 2014 { 2015 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2016 } 2017 2018 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2019 struct cfg80211_ibss_params *params) 2020 { 2021 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2022 } 2023 2024 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2025 { 2026 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2027 } 2028 2029 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2030 struct ocb_setup *setup) 2031 { 2032 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2033 } 2034 2035 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2036 { 2037 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2038 } 2039 2040 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2041 int rate[IEEE80211_NUM_BANDS]) 2042 { 2043 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2044 2045 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2046 sizeof(int) * IEEE80211_NUM_BANDS); 2047 2048 return 0; 2049 } 2050 2051 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2052 { 2053 struct ieee80211_local *local = wiphy_priv(wiphy); 2054 int err; 2055 2056 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2057 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2058 2059 if (err) 2060 return err; 2061 } 2062 2063 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2064 (changed & WIPHY_PARAM_DYN_ACK)) { 2065 s16 coverage_class; 2066 2067 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2068 wiphy->coverage_class : -1; 2069 err = drv_set_coverage_class(local, coverage_class); 2070 2071 if (err) 2072 return err; 2073 } 2074 2075 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2076 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2077 2078 if (err) 2079 return err; 2080 } 2081 2082 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2083 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2084 return -EINVAL; 2085 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2086 } 2087 if (changed & WIPHY_PARAM_RETRY_LONG) { 2088 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2089 return -EINVAL; 2090 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2091 } 2092 if (changed & 2093 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2094 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2095 2096 return 0; 2097 } 2098 2099 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2100 struct wireless_dev *wdev, 2101 enum nl80211_tx_power_setting type, int mbm) 2102 { 2103 struct ieee80211_local *local = wiphy_priv(wiphy); 2104 struct ieee80211_sub_if_data *sdata; 2105 2106 if (wdev) { 2107 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2108 2109 switch (type) { 2110 case NL80211_TX_POWER_AUTOMATIC: 2111 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2112 break; 2113 case NL80211_TX_POWER_LIMITED: 2114 case NL80211_TX_POWER_FIXED: 2115 if (mbm < 0 || (mbm % 100)) 2116 return -EOPNOTSUPP; 2117 sdata->user_power_level = MBM_TO_DBM(mbm); 2118 break; 2119 } 2120 2121 ieee80211_recalc_txpower(sdata); 2122 2123 return 0; 2124 } 2125 2126 switch (type) { 2127 case NL80211_TX_POWER_AUTOMATIC: 2128 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2129 break; 2130 case NL80211_TX_POWER_LIMITED: 2131 case NL80211_TX_POWER_FIXED: 2132 if (mbm < 0 || (mbm % 100)) 2133 return -EOPNOTSUPP; 2134 local->user_power_level = MBM_TO_DBM(mbm); 2135 break; 2136 } 2137 2138 mutex_lock(&local->iflist_mtx); 2139 list_for_each_entry(sdata, &local->interfaces, list) 2140 sdata->user_power_level = local->user_power_level; 2141 list_for_each_entry(sdata, &local->interfaces, list) 2142 ieee80211_recalc_txpower(sdata); 2143 mutex_unlock(&local->iflist_mtx); 2144 2145 return 0; 2146 } 2147 2148 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2149 struct wireless_dev *wdev, 2150 int *dbm) 2151 { 2152 struct ieee80211_local *local = wiphy_priv(wiphy); 2153 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2154 2155 if (local->ops->get_txpower) 2156 return drv_get_txpower(local, sdata, dbm); 2157 2158 if (!local->use_chanctx) 2159 *dbm = local->hw.conf.power_level; 2160 else 2161 *dbm = sdata->vif.bss_conf.txpower; 2162 2163 return 0; 2164 } 2165 2166 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2167 const u8 *addr) 2168 { 2169 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2170 2171 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2172 2173 return 0; 2174 } 2175 2176 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2177 { 2178 struct ieee80211_local *local = wiphy_priv(wiphy); 2179 2180 drv_rfkill_poll(local); 2181 } 2182 2183 #ifdef CONFIG_NL80211_TESTMODE 2184 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2185 struct wireless_dev *wdev, 2186 void *data, int len) 2187 { 2188 struct ieee80211_local *local = wiphy_priv(wiphy); 2189 struct ieee80211_vif *vif = NULL; 2190 2191 if (!local->ops->testmode_cmd) 2192 return -EOPNOTSUPP; 2193 2194 if (wdev) { 2195 struct ieee80211_sub_if_data *sdata; 2196 2197 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2198 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2199 vif = &sdata->vif; 2200 } 2201 2202 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2203 } 2204 2205 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2206 struct sk_buff *skb, 2207 struct netlink_callback *cb, 2208 void *data, int len) 2209 { 2210 struct ieee80211_local *local = wiphy_priv(wiphy); 2211 2212 if (!local->ops->testmode_dump) 2213 return -EOPNOTSUPP; 2214 2215 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2216 } 2217 #endif 2218 2219 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2220 enum ieee80211_smps_mode smps_mode) 2221 { 2222 struct sta_info *sta; 2223 enum ieee80211_smps_mode old_req; 2224 int i; 2225 2226 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2227 return -EINVAL; 2228 2229 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2230 return 0; 2231 2232 old_req = sdata->u.ap.req_smps; 2233 sdata->u.ap.req_smps = smps_mode; 2234 2235 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2236 if (old_req == smps_mode || 2237 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2238 return 0; 2239 2240 /* If no associated stations, there's no need to do anything */ 2241 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { 2242 sdata->smps_mode = smps_mode; 2243 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2244 return 0; 2245 } 2246 2247 ht_dbg(sdata, 2248 "SMSP %d requested in AP mode, sending Action frame to %d stations\n", 2249 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2250 2251 mutex_lock(&sdata->local->sta_mtx); 2252 for (i = 0; i < STA_HASH_SIZE; i++) { 2253 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i], 2254 lockdep_is_held(&sdata->local->sta_mtx)); 2255 sta; 2256 sta = rcu_dereference_protected(sta->hnext, 2257 lockdep_is_held(&sdata->local->sta_mtx))) { 2258 /* 2259 * Only stations associated to our AP and 2260 * associated VLANs 2261 */ 2262 if (sta->sdata->bss != &sdata->u.ap) 2263 continue; 2264 2265 /* This station doesn't support MIMO - skip it */ 2266 if (sta_info_tx_streams(sta) == 1) 2267 continue; 2268 2269 /* 2270 * Don't wake up a STA just to send the action frame 2271 * unless we are getting more restrictive. 2272 */ 2273 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2274 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2275 smps_mode)) { 2276 ht_dbg(sdata, 2277 "Won't send SMPS to sleeping STA %pM\n", 2278 sta->sta.addr); 2279 continue; 2280 } 2281 2282 /* 2283 * If the STA is not authorized, wait until it gets 2284 * authorized and the action frame will be sent then. 2285 */ 2286 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2287 continue; 2288 2289 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2290 ieee80211_send_smps_action(sdata, smps_mode, 2291 sta->sta.addr, 2292 sdata->vif.bss_conf.bssid); 2293 } 2294 } 2295 mutex_unlock(&sdata->local->sta_mtx); 2296 2297 sdata->smps_mode = smps_mode; 2298 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2299 2300 return 0; 2301 } 2302 2303 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2304 enum ieee80211_smps_mode smps_mode) 2305 { 2306 const u8 *ap; 2307 enum ieee80211_smps_mode old_req; 2308 int err; 2309 2310 lockdep_assert_held(&sdata->wdev.mtx); 2311 2312 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2313 return -EINVAL; 2314 2315 old_req = sdata->u.mgd.req_smps; 2316 sdata->u.mgd.req_smps = smps_mode; 2317 2318 if (old_req == smps_mode && 2319 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2320 return 0; 2321 2322 /* 2323 * If not associated, or current association is not an HT 2324 * association, there's no need to do anything, just store 2325 * the new value until we associate. 2326 */ 2327 if (!sdata->u.mgd.associated || 2328 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2329 return 0; 2330 2331 ap = sdata->u.mgd.associated->bssid; 2332 2333 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2334 if (sdata->u.mgd.powersave) 2335 smps_mode = IEEE80211_SMPS_DYNAMIC; 2336 else 2337 smps_mode = IEEE80211_SMPS_OFF; 2338 } 2339 2340 /* send SM PS frame to AP */ 2341 err = ieee80211_send_smps_action(sdata, smps_mode, 2342 ap, ap); 2343 if (err) 2344 sdata->u.mgd.req_smps = old_req; 2345 2346 return err; 2347 } 2348 2349 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2350 bool enabled, int timeout) 2351 { 2352 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2353 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2354 2355 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2356 return -EOPNOTSUPP; 2357 2358 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 2359 return -EOPNOTSUPP; 2360 2361 if (enabled == sdata->u.mgd.powersave && 2362 timeout == local->dynamic_ps_forced_timeout) 2363 return 0; 2364 2365 sdata->u.mgd.powersave = enabled; 2366 local->dynamic_ps_forced_timeout = timeout; 2367 2368 /* no change, but if automatic follow powersave */ 2369 sdata_lock(sdata); 2370 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2371 sdata_unlock(sdata); 2372 2373 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 2374 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2375 2376 ieee80211_recalc_ps(local, -1); 2377 ieee80211_recalc_ps_vif(sdata); 2378 2379 return 0; 2380 } 2381 2382 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2383 struct net_device *dev, 2384 s32 rssi_thold, u32 rssi_hyst) 2385 { 2386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2387 struct ieee80211_vif *vif = &sdata->vif; 2388 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2389 2390 if (rssi_thold == bss_conf->cqm_rssi_thold && 2391 rssi_hyst == bss_conf->cqm_rssi_hyst) 2392 return 0; 2393 2394 bss_conf->cqm_rssi_thold = rssi_thold; 2395 bss_conf->cqm_rssi_hyst = rssi_hyst; 2396 2397 /* tell the driver upon association, unless already associated */ 2398 if (sdata->u.mgd.associated && 2399 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2400 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2401 2402 return 0; 2403 } 2404 2405 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2406 struct net_device *dev, 2407 const u8 *addr, 2408 const struct cfg80211_bitrate_mask *mask) 2409 { 2410 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2411 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2412 int i, ret; 2413 2414 if (!ieee80211_sdata_running(sdata)) 2415 return -ENETDOWN; 2416 2417 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 2418 ret = drv_set_bitrate_mask(local, sdata, mask); 2419 if (ret) 2420 return ret; 2421 } 2422 2423 for (i = 0; i < IEEE80211_NUM_BANDS; i++) { 2424 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2425 int j; 2426 2427 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2428 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2429 sizeof(mask->control[i].ht_mcs)); 2430 2431 sdata->rc_has_mcs_mask[i] = false; 2432 if (!sband) 2433 continue; 2434 2435 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) 2436 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2437 sdata->rc_has_mcs_mask[i] = true; 2438 break; 2439 } 2440 } 2441 2442 return 0; 2443 } 2444 2445 static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local, 2446 struct ieee80211_roc_work *new_roc, 2447 struct ieee80211_roc_work *cur_roc) 2448 { 2449 unsigned long j = jiffies; 2450 unsigned long cur_roc_end = cur_roc->hw_start_time + 2451 msecs_to_jiffies(cur_roc->duration); 2452 struct ieee80211_roc_work *next_roc; 2453 int new_dur; 2454 2455 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun)) 2456 return false; 2457 2458 if (time_after(j + IEEE80211_ROC_MIN_LEFT, cur_roc_end)) 2459 return false; 2460 2461 ieee80211_handle_roc_started(new_roc); 2462 2463 new_dur = new_roc->duration - jiffies_to_msecs(cur_roc_end - j); 2464 2465 /* cur_roc is long enough - add new_roc to the dependents list. */ 2466 if (new_dur <= 0) { 2467 list_add_tail(&new_roc->list, &cur_roc->dependents); 2468 return true; 2469 } 2470 2471 new_roc->duration = new_dur; 2472 2473 /* 2474 * if cur_roc was already coalesced before, we might 2475 * want to extend the next roc instead of adding 2476 * a new one. 2477 */ 2478 next_roc = list_entry(cur_roc->list.next, 2479 struct ieee80211_roc_work, list); 2480 if (&next_roc->list != &local->roc_list && 2481 next_roc->chan == new_roc->chan && 2482 next_roc->sdata == new_roc->sdata && 2483 !WARN_ON(next_roc->started)) { 2484 list_add_tail(&new_roc->list, &next_roc->dependents); 2485 next_roc->duration = max(next_roc->duration, 2486 new_roc->duration); 2487 next_roc->type = max(next_roc->type, new_roc->type); 2488 return true; 2489 } 2490 2491 /* add right after cur_roc */ 2492 list_add(&new_roc->list, &cur_roc->list); 2493 2494 return true; 2495 } 2496 2497 static int ieee80211_start_roc_work(struct ieee80211_local *local, 2498 struct ieee80211_sub_if_data *sdata, 2499 struct ieee80211_channel *channel, 2500 unsigned int duration, u64 *cookie, 2501 struct sk_buff *txskb, 2502 enum ieee80211_roc_type type) 2503 { 2504 struct ieee80211_roc_work *roc, *tmp; 2505 bool queued = false; 2506 int ret; 2507 2508 lockdep_assert_held(&local->mtx); 2509 2510 if (local->use_chanctx && !local->ops->remain_on_channel) 2511 return -EOPNOTSUPP; 2512 2513 roc = kzalloc(sizeof(*roc), GFP_KERNEL); 2514 if (!roc) 2515 return -ENOMEM; 2516 2517 /* 2518 * If the duration is zero, then the driver 2519 * wouldn't actually do anything. Set it to 2520 * 10 for now. 2521 * 2522 * TODO: cancel the off-channel operation 2523 * when we get the SKB's TX status and 2524 * the wait time was zero before. 2525 */ 2526 if (!duration) 2527 duration = 10; 2528 2529 roc->chan = channel; 2530 roc->duration = duration; 2531 roc->req_duration = duration; 2532 roc->frame = txskb; 2533 roc->type = type; 2534 roc->mgmt_tx_cookie = (unsigned long)txskb; 2535 roc->sdata = sdata; 2536 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); 2537 INIT_LIST_HEAD(&roc->dependents); 2538 2539 /* 2540 * cookie is either the roc cookie (for normal roc) 2541 * or the SKB (for mgmt TX) 2542 */ 2543 if (!txskb) { 2544 /* local->mtx protects this */ 2545 local->roc_cookie_counter++; 2546 roc->cookie = local->roc_cookie_counter; 2547 /* wow, you wrapped 64 bits ... more likely a bug */ 2548 if (WARN_ON(roc->cookie == 0)) { 2549 roc->cookie = 1; 2550 local->roc_cookie_counter++; 2551 } 2552 *cookie = roc->cookie; 2553 } else { 2554 *cookie = (unsigned long)txskb; 2555 } 2556 2557 /* if there's one pending or we're scanning, queue this one */ 2558 if (!list_empty(&local->roc_list) || 2559 local->scanning || local->radar_detect_enabled) 2560 goto out_check_combine; 2561 2562 /* if not HW assist, just queue & schedule work */ 2563 if (!local->ops->remain_on_channel) { 2564 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); 2565 goto out_queue; 2566 } 2567 2568 /* otherwise actually kick it off here (for error handling) */ 2569 2570 ret = drv_remain_on_channel(local, sdata, channel, duration, type); 2571 if (ret) { 2572 kfree(roc); 2573 return ret; 2574 } 2575 2576 roc->started = true; 2577 goto out_queue; 2578 2579 out_check_combine: 2580 list_for_each_entry(tmp, &local->roc_list, list) { 2581 if (tmp->chan != channel || tmp->sdata != sdata) 2582 continue; 2583 2584 /* 2585 * Extend this ROC if possible: 2586 * 2587 * If it hasn't started yet, just increase the duration 2588 * and add the new one to the list of dependents. 2589 * If the type of the new ROC has higher priority, modify the 2590 * type of the previous one to match that of the new one. 2591 */ 2592 if (!tmp->started) { 2593 list_add_tail(&roc->list, &tmp->dependents); 2594 tmp->duration = max(tmp->duration, roc->duration); 2595 tmp->type = max(tmp->type, roc->type); 2596 queued = true; 2597 break; 2598 } 2599 2600 /* If it has already started, it's more difficult ... */ 2601 if (local->ops->remain_on_channel) { 2602 /* 2603 * In the offloaded ROC case, if it hasn't begun, add 2604 * this new one to the dependent list to be handled 2605 * when the master one begins. If it has begun, 2606 * check that there's still a minimum time left and 2607 * if so, start this one, transmitting the frame, but 2608 * add it to the list directly after this one with 2609 * a reduced time so we'll ask the driver to execute 2610 * it right after finishing the previous one, in the 2611 * hope that it'll also be executed right afterwards, 2612 * effectively extending the old one. 2613 * If there's no minimum time left, just add it to the 2614 * normal list. 2615 * TODO: the ROC type is ignored here, assuming that it 2616 * is better to immediately use the current ROC. 2617 */ 2618 if (!tmp->hw_begun) { 2619 list_add_tail(&roc->list, &tmp->dependents); 2620 queued = true; 2621 break; 2622 } 2623 2624 if (ieee80211_coalesce_started_roc(local, roc, tmp)) 2625 queued = true; 2626 } else if (del_timer_sync(&tmp->work.timer)) { 2627 unsigned long new_end; 2628 2629 /* 2630 * In the software ROC case, cancel the timer, if 2631 * that fails then the finish work is already 2632 * queued/pending and thus we queue the new ROC 2633 * normally, if that succeeds then we can extend 2634 * the timer duration and TX the frame (if any.) 2635 */ 2636 2637 list_add_tail(&roc->list, &tmp->dependents); 2638 queued = true; 2639 2640 new_end = jiffies + msecs_to_jiffies(roc->duration); 2641 2642 /* ok, it was started & we canceled timer */ 2643 if (time_after(new_end, tmp->work.timer.expires)) 2644 mod_timer(&tmp->work.timer, new_end); 2645 else 2646 add_timer(&tmp->work.timer); 2647 2648 ieee80211_handle_roc_started(roc); 2649 } 2650 break; 2651 } 2652 2653 out_queue: 2654 if (!queued) 2655 list_add_tail(&roc->list, &local->roc_list); 2656 2657 return 0; 2658 } 2659 2660 static int ieee80211_remain_on_channel(struct wiphy *wiphy, 2661 struct wireless_dev *wdev, 2662 struct ieee80211_channel *chan, 2663 unsigned int duration, 2664 u64 *cookie) 2665 { 2666 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2667 struct ieee80211_local *local = sdata->local; 2668 int ret; 2669 2670 mutex_lock(&local->mtx); 2671 ret = ieee80211_start_roc_work(local, sdata, chan, 2672 duration, cookie, NULL, 2673 IEEE80211_ROC_TYPE_NORMAL); 2674 mutex_unlock(&local->mtx); 2675 2676 return ret; 2677 } 2678 2679 static int ieee80211_cancel_roc(struct ieee80211_local *local, 2680 u64 cookie, bool mgmt_tx) 2681 { 2682 struct ieee80211_roc_work *roc, *tmp, *found = NULL; 2683 int ret; 2684 2685 mutex_lock(&local->mtx); 2686 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { 2687 struct ieee80211_roc_work *dep, *tmp2; 2688 2689 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { 2690 if (!mgmt_tx && dep->cookie != cookie) 2691 continue; 2692 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) 2693 continue; 2694 /* found dependent item -- just remove it */ 2695 list_del(&dep->list); 2696 mutex_unlock(&local->mtx); 2697 2698 ieee80211_roc_notify_destroy(dep, true); 2699 return 0; 2700 } 2701 2702 if (!mgmt_tx && roc->cookie != cookie) 2703 continue; 2704 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) 2705 continue; 2706 2707 found = roc; 2708 break; 2709 } 2710 2711 if (!found) { 2712 mutex_unlock(&local->mtx); 2713 return -ENOENT; 2714 } 2715 2716 /* 2717 * We found the item to cancel, so do that. Note that it 2718 * may have dependents, which we also cancel (and send 2719 * the expired signal for.) Not doing so would be quite 2720 * tricky here, but we may need to fix it later. 2721 */ 2722 2723 if (local->ops->remain_on_channel) { 2724 if (found->started) { 2725 ret = drv_cancel_remain_on_channel(local); 2726 if (WARN_ON_ONCE(ret)) { 2727 mutex_unlock(&local->mtx); 2728 return ret; 2729 } 2730 } 2731 2732 list_del(&found->list); 2733 2734 if (found->started) 2735 ieee80211_start_next_roc(local); 2736 mutex_unlock(&local->mtx); 2737 2738 ieee80211_roc_notify_destroy(found, true); 2739 } else { 2740 /* work may be pending so use it all the time */ 2741 found->abort = true; 2742 ieee80211_queue_delayed_work(&local->hw, &found->work, 0); 2743 2744 mutex_unlock(&local->mtx); 2745 2746 /* work will clean up etc */ 2747 flush_delayed_work(&found->work); 2748 WARN_ON(!found->to_be_freed); 2749 kfree(found); 2750 } 2751 2752 return 0; 2753 } 2754 2755 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2756 struct wireless_dev *wdev, 2757 u64 cookie) 2758 { 2759 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2760 struct ieee80211_local *local = sdata->local; 2761 2762 return ieee80211_cancel_roc(local, cookie, false); 2763 } 2764 2765 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2766 struct net_device *dev, 2767 struct cfg80211_chan_def *chandef, 2768 u32 cac_time_ms) 2769 { 2770 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2771 struct ieee80211_local *local = sdata->local; 2772 int err; 2773 2774 mutex_lock(&local->mtx); 2775 if (!list_empty(&local->roc_list) || local->scanning) { 2776 err = -EBUSY; 2777 goto out_unlock; 2778 } 2779 2780 /* whatever, but channel contexts should not complain about that one */ 2781 sdata->smps_mode = IEEE80211_SMPS_OFF; 2782 sdata->needed_rx_chains = local->rx_chains; 2783 2784 err = ieee80211_vif_use_channel(sdata, chandef, 2785 IEEE80211_CHANCTX_SHARED); 2786 if (err) 2787 goto out_unlock; 2788 2789 ieee80211_queue_delayed_work(&sdata->local->hw, 2790 &sdata->dfs_cac_timer_work, 2791 msecs_to_jiffies(cac_time_ms)); 2792 2793 out_unlock: 2794 mutex_unlock(&local->mtx); 2795 return err; 2796 } 2797 2798 static struct cfg80211_beacon_data * 2799 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2800 { 2801 struct cfg80211_beacon_data *new_beacon; 2802 u8 *pos; 2803 int len; 2804 2805 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2806 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2807 beacon->probe_resp_len; 2808 2809 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2810 if (!new_beacon) 2811 return NULL; 2812 2813 pos = (u8 *)(new_beacon + 1); 2814 if (beacon->head_len) { 2815 new_beacon->head_len = beacon->head_len; 2816 new_beacon->head = pos; 2817 memcpy(pos, beacon->head, beacon->head_len); 2818 pos += beacon->head_len; 2819 } 2820 if (beacon->tail_len) { 2821 new_beacon->tail_len = beacon->tail_len; 2822 new_beacon->tail = pos; 2823 memcpy(pos, beacon->tail, beacon->tail_len); 2824 pos += beacon->tail_len; 2825 } 2826 if (beacon->beacon_ies_len) { 2827 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2828 new_beacon->beacon_ies = pos; 2829 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2830 pos += beacon->beacon_ies_len; 2831 } 2832 if (beacon->proberesp_ies_len) { 2833 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2834 new_beacon->proberesp_ies = pos; 2835 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2836 pos += beacon->proberesp_ies_len; 2837 } 2838 if (beacon->assocresp_ies_len) { 2839 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2840 new_beacon->assocresp_ies = pos; 2841 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2842 pos += beacon->assocresp_ies_len; 2843 } 2844 if (beacon->probe_resp_len) { 2845 new_beacon->probe_resp_len = beacon->probe_resp_len; 2846 beacon->probe_resp = pos; 2847 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2848 pos += beacon->probe_resp_len; 2849 } 2850 2851 return new_beacon; 2852 } 2853 2854 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2855 { 2856 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2857 2858 ieee80211_queue_work(&sdata->local->hw, 2859 &sdata->csa_finalize_work); 2860 } 2861 EXPORT_SYMBOL(ieee80211_csa_finish); 2862 2863 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2864 u32 *changed) 2865 { 2866 int err; 2867 2868 switch (sdata->vif.type) { 2869 case NL80211_IFTYPE_AP: 2870 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2871 NULL); 2872 kfree(sdata->u.ap.next_beacon); 2873 sdata->u.ap.next_beacon = NULL; 2874 2875 if (err < 0) 2876 return err; 2877 *changed |= err; 2878 break; 2879 case NL80211_IFTYPE_ADHOC: 2880 err = ieee80211_ibss_finish_csa(sdata); 2881 if (err < 0) 2882 return err; 2883 *changed |= err; 2884 break; 2885 #ifdef CONFIG_MAC80211_MESH 2886 case NL80211_IFTYPE_MESH_POINT: 2887 err = ieee80211_mesh_finish_csa(sdata); 2888 if (err < 0) 2889 return err; 2890 *changed |= err; 2891 break; 2892 #endif 2893 default: 2894 WARN_ON(1); 2895 return -EINVAL; 2896 } 2897 2898 return 0; 2899 } 2900 2901 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2902 { 2903 struct ieee80211_local *local = sdata->local; 2904 u32 changed = 0; 2905 int err; 2906 2907 sdata_assert_lock(sdata); 2908 lockdep_assert_held(&local->mtx); 2909 lockdep_assert_held(&local->chanctx_mtx); 2910 2911 /* 2912 * using reservation isn't immediate as it may be deferred until later 2913 * with multi-vif. once reservation is complete it will re-schedule the 2914 * work with no reserved_chanctx so verify chandef to check if it 2915 * completed successfully 2916 */ 2917 2918 if (sdata->reserved_chanctx) { 2919 /* 2920 * with multi-vif csa driver may call ieee80211_csa_finish() 2921 * many times while waiting for other interfaces to use their 2922 * reservations 2923 */ 2924 if (sdata->reserved_ready) 2925 return 0; 2926 2927 return ieee80211_vif_use_reserved_context(sdata); 2928 } 2929 2930 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 2931 &sdata->csa_chandef)) 2932 return -EINVAL; 2933 2934 sdata->vif.csa_active = false; 2935 2936 err = ieee80211_set_after_csa_beacon(sdata, &changed); 2937 if (err) 2938 return err; 2939 2940 ieee80211_bss_info_change_notify(sdata, changed); 2941 2942 if (sdata->csa_block_tx) { 2943 ieee80211_wake_vif_queues(local, sdata, 2944 IEEE80211_QUEUE_STOP_REASON_CSA); 2945 sdata->csa_block_tx = false; 2946 } 2947 2948 err = drv_post_channel_switch(sdata); 2949 if (err) 2950 return err; 2951 2952 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 2953 2954 return 0; 2955 } 2956 2957 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2958 { 2959 if (__ieee80211_csa_finalize(sdata)) { 2960 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 2961 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 2962 GFP_KERNEL); 2963 } 2964 } 2965 2966 void ieee80211_csa_finalize_work(struct work_struct *work) 2967 { 2968 struct ieee80211_sub_if_data *sdata = 2969 container_of(work, struct ieee80211_sub_if_data, 2970 csa_finalize_work); 2971 struct ieee80211_local *local = sdata->local; 2972 2973 sdata_lock(sdata); 2974 mutex_lock(&local->mtx); 2975 mutex_lock(&local->chanctx_mtx); 2976 2977 /* AP might have been stopped while waiting for the lock. */ 2978 if (!sdata->vif.csa_active) 2979 goto unlock; 2980 2981 if (!ieee80211_sdata_running(sdata)) 2982 goto unlock; 2983 2984 ieee80211_csa_finalize(sdata); 2985 2986 unlock: 2987 mutex_unlock(&local->chanctx_mtx); 2988 mutex_unlock(&local->mtx); 2989 sdata_unlock(sdata); 2990 } 2991 2992 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 2993 struct cfg80211_csa_settings *params, 2994 u32 *changed) 2995 { 2996 struct ieee80211_csa_settings csa = {}; 2997 int err; 2998 2999 switch (sdata->vif.type) { 3000 case NL80211_IFTYPE_AP: 3001 sdata->u.ap.next_beacon = 3002 cfg80211_beacon_dup(¶ms->beacon_after); 3003 if (!sdata->u.ap.next_beacon) 3004 return -ENOMEM; 3005 3006 /* 3007 * With a count of 0, we don't have to wait for any 3008 * TBTT before switching, so complete the CSA 3009 * immediately. In theory, with a count == 1 we 3010 * should delay the switch until just before the next 3011 * TBTT, but that would complicate things so we switch 3012 * immediately too. If we would delay the switch 3013 * until the next TBTT, we would have to set the probe 3014 * response here. 3015 * 3016 * TODO: A channel switch with count <= 1 without 3017 * sending a CSA action frame is kind of useless, 3018 * because the clients won't know we're changing 3019 * channels. The action frame must be implemented 3020 * either here or in the userspace. 3021 */ 3022 if (params->count <= 1) 3023 break; 3024 3025 if ((params->n_counter_offsets_beacon > 3026 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3027 (params->n_counter_offsets_presp > 3028 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3029 return -EINVAL; 3030 3031 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3032 csa.counter_offsets_presp = params->counter_offsets_presp; 3033 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3034 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3035 csa.count = params->count; 3036 3037 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3038 if (err < 0) { 3039 kfree(sdata->u.ap.next_beacon); 3040 return err; 3041 } 3042 *changed |= err; 3043 3044 break; 3045 case NL80211_IFTYPE_ADHOC: 3046 if (!sdata->vif.bss_conf.ibss_joined) 3047 return -EINVAL; 3048 3049 if (params->chandef.width != sdata->u.ibss.chandef.width) 3050 return -EINVAL; 3051 3052 switch (params->chandef.width) { 3053 case NL80211_CHAN_WIDTH_40: 3054 if (cfg80211_get_chandef_type(¶ms->chandef) != 3055 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3056 return -EINVAL; 3057 case NL80211_CHAN_WIDTH_5: 3058 case NL80211_CHAN_WIDTH_10: 3059 case NL80211_CHAN_WIDTH_20_NOHT: 3060 case NL80211_CHAN_WIDTH_20: 3061 break; 3062 default: 3063 return -EINVAL; 3064 } 3065 3066 /* changes into another band are not supported */ 3067 if (sdata->u.ibss.chandef.chan->band != 3068 params->chandef.chan->band) 3069 return -EINVAL; 3070 3071 /* see comments in the NL80211_IFTYPE_AP block */ 3072 if (params->count > 1) { 3073 err = ieee80211_ibss_csa_beacon(sdata, params); 3074 if (err < 0) 3075 return err; 3076 *changed |= err; 3077 } 3078 3079 ieee80211_send_action_csa(sdata, params); 3080 3081 break; 3082 #ifdef CONFIG_MAC80211_MESH 3083 case NL80211_IFTYPE_MESH_POINT: { 3084 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3085 3086 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3087 return -EINVAL; 3088 3089 /* changes into another band are not supported */ 3090 if (sdata->vif.bss_conf.chandef.chan->band != 3091 params->chandef.chan->band) 3092 return -EINVAL; 3093 3094 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3095 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3096 if (!ifmsh->pre_value) 3097 ifmsh->pre_value = 1; 3098 else 3099 ifmsh->pre_value++; 3100 } 3101 3102 /* see comments in the NL80211_IFTYPE_AP block */ 3103 if (params->count > 1) { 3104 err = ieee80211_mesh_csa_beacon(sdata, params); 3105 if (err < 0) { 3106 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3107 return err; 3108 } 3109 *changed |= err; 3110 } 3111 3112 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3113 ieee80211_send_action_csa(sdata, params); 3114 3115 break; 3116 } 3117 #endif 3118 default: 3119 return -EOPNOTSUPP; 3120 } 3121 3122 return 0; 3123 } 3124 3125 static int 3126 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3127 struct cfg80211_csa_settings *params) 3128 { 3129 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3130 struct ieee80211_local *local = sdata->local; 3131 struct ieee80211_channel_switch ch_switch; 3132 struct ieee80211_chanctx_conf *conf; 3133 struct ieee80211_chanctx *chanctx; 3134 u32 changed = 0; 3135 int err; 3136 3137 sdata_assert_lock(sdata); 3138 lockdep_assert_held(&local->mtx); 3139 3140 if (!list_empty(&local->roc_list) || local->scanning) 3141 return -EBUSY; 3142 3143 if (sdata->wdev.cac_started) 3144 return -EBUSY; 3145 3146 if (cfg80211_chandef_identical(¶ms->chandef, 3147 &sdata->vif.bss_conf.chandef)) 3148 return -EINVAL; 3149 3150 /* don't allow another channel switch if one is already active. */ 3151 if (sdata->vif.csa_active) 3152 return -EBUSY; 3153 3154 mutex_lock(&local->chanctx_mtx); 3155 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3156 lockdep_is_held(&local->chanctx_mtx)); 3157 if (!conf) { 3158 err = -EBUSY; 3159 goto out; 3160 } 3161 3162 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3163 if (!chanctx) { 3164 err = -EBUSY; 3165 goto out; 3166 } 3167 3168 ch_switch.timestamp = 0; 3169 ch_switch.device_timestamp = 0; 3170 ch_switch.block_tx = params->block_tx; 3171 ch_switch.chandef = params->chandef; 3172 ch_switch.count = params->count; 3173 3174 err = drv_pre_channel_switch(sdata, &ch_switch); 3175 if (err) 3176 goto out; 3177 3178 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3179 chanctx->mode, 3180 params->radar_required); 3181 if (err) 3182 goto out; 3183 3184 /* if reservation is invalid then this will fail */ 3185 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3186 if (err) { 3187 ieee80211_vif_unreserve_chanctx(sdata); 3188 goto out; 3189 } 3190 3191 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3192 if (err) { 3193 ieee80211_vif_unreserve_chanctx(sdata); 3194 goto out; 3195 } 3196 3197 sdata->csa_chandef = params->chandef; 3198 sdata->csa_block_tx = params->block_tx; 3199 sdata->vif.csa_active = true; 3200 3201 if (sdata->csa_block_tx) 3202 ieee80211_stop_vif_queues(local, sdata, 3203 IEEE80211_QUEUE_STOP_REASON_CSA); 3204 3205 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3206 params->count); 3207 3208 if (changed) { 3209 ieee80211_bss_info_change_notify(sdata, changed); 3210 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3211 } else { 3212 /* if the beacon didn't change, we can finalize immediately */ 3213 ieee80211_csa_finalize(sdata); 3214 } 3215 3216 out: 3217 mutex_unlock(&local->chanctx_mtx); 3218 return err; 3219 } 3220 3221 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3222 struct cfg80211_csa_settings *params) 3223 { 3224 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3225 struct ieee80211_local *local = sdata->local; 3226 int err; 3227 3228 mutex_lock(&local->mtx); 3229 err = __ieee80211_channel_switch(wiphy, dev, params); 3230 mutex_unlock(&local->mtx); 3231 3232 return err; 3233 } 3234 3235 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3236 struct cfg80211_mgmt_tx_params *params, 3237 u64 *cookie) 3238 { 3239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3240 struct ieee80211_local *local = sdata->local; 3241 struct sk_buff *skb; 3242 struct sta_info *sta; 3243 const struct ieee80211_mgmt *mgmt = (void *)params->buf; 3244 bool need_offchan = false; 3245 u32 flags; 3246 int ret; 3247 u8 *data; 3248 3249 if (params->dont_wait_for_ack) 3250 flags = IEEE80211_TX_CTL_NO_ACK; 3251 else 3252 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 3253 IEEE80211_TX_CTL_REQ_TX_STATUS; 3254 3255 if (params->no_cck) 3256 flags |= IEEE80211_TX_CTL_NO_CCK_RATE; 3257 3258 switch (sdata->vif.type) { 3259 case NL80211_IFTYPE_ADHOC: 3260 if (!sdata->vif.bss_conf.ibss_joined) 3261 need_offchan = true; 3262 /* fall through */ 3263 #ifdef CONFIG_MAC80211_MESH 3264 case NL80211_IFTYPE_MESH_POINT: 3265 if (ieee80211_vif_is_mesh(&sdata->vif) && 3266 !sdata->u.mesh.mesh_id_len) 3267 need_offchan = true; 3268 /* fall through */ 3269 #endif 3270 case NL80211_IFTYPE_AP: 3271 case NL80211_IFTYPE_AP_VLAN: 3272 case NL80211_IFTYPE_P2P_GO: 3273 if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3274 !ieee80211_vif_is_mesh(&sdata->vif) && 3275 !rcu_access_pointer(sdata->bss->beacon)) 3276 need_offchan = true; 3277 if (!ieee80211_is_action(mgmt->frame_control) || 3278 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || 3279 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED || 3280 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) 3281 break; 3282 rcu_read_lock(); 3283 sta = sta_info_get(sdata, mgmt->da); 3284 rcu_read_unlock(); 3285 if (!sta) 3286 return -ENOLINK; 3287 break; 3288 case NL80211_IFTYPE_STATION: 3289 case NL80211_IFTYPE_P2P_CLIENT: 3290 if (!sdata->u.mgd.associated) 3291 need_offchan = true; 3292 break; 3293 case NL80211_IFTYPE_P2P_DEVICE: 3294 need_offchan = true; 3295 break; 3296 default: 3297 return -EOPNOTSUPP; 3298 } 3299 3300 /* configurations requiring offchan cannot work if no channel has been 3301 * specified 3302 */ 3303 if (need_offchan && !params->chan) 3304 return -EINVAL; 3305 3306 mutex_lock(&local->mtx); 3307 3308 /* Check if the operating channel is the requested channel */ 3309 if (!need_offchan) { 3310 struct ieee80211_chanctx_conf *chanctx_conf; 3311 3312 rcu_read_lock(); 3313 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3314 3315 if (chanctx_conf) { 3316 need_offchan = params->chan && 3317 (params->chan != 3318 chanctx_conf->def.chan); 3319 } else if (!params->chan) { 3320 ret = -EINVAL; 3321 rcu_read_unlock(); 3322 goto out_unlock; 3323 } else { 3324 need_offchan = true; 3325 } 3326 rcu_read_unlock(); 3327 } 3328 3329 if (need_offchan && !params->offchan) { 3330 ret = -EBUSY; 3331 goto out_unlock; 3332 } 3333 3334 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); 3335 if (!skb) { 3336 ret = -ENOMEM; 3337 goto out_unlock; 3338 } 3339 skb_reserve(skb, local->hw.extra_tx_headroom); 3340 3341 data = skb_put(skb, params->len); 3342 memcpy(data, params->buf, params->len); 3343 3344 /* Update CSA counters */ 3345 if (sdata->vif.csa_active && 3346 (sdata->vif.type == NL80211_IFTYPE_AP || 3347 sdata->vif.type == NL80211_IFTYPE_ADHOC) && 3348 params->n_csa_offsets) { 3349 int i; 3350 struct beacon_data *beacon = NULL; 3351 3352 rcu_read_lock(); 3353 3354 if (sdata->vif.type == NL80211_IFTYPE_AP) 3355 beacon = rcu_dereference(sdata->u.ap.beacon); 3356 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 3357 beacon = rcu_dereference(sdata->u.ibss.presp); 3358 else if (ieee80211_vif_is_mesh(&sdata->vif)) 3359 beacon = rcu_dereference(sdata->u.mesh.beacon); 3360 3361 if (beacon) 3362 for (i = 0; i < params->n_csa_offsets; i++) 3363 data[params->csa_offsets[i]] = 3364 beacon->csa_current_counter; 3365 3366 rcu_read_unlock(); 3367 } 3368 3369 IEEE80211_SKB_CB(skb)->flags = flags; 3370 3371 skb->dev = sdata->dev; 3372 3373 if (!need_offchan) { 3374 *cookie = (unsigned long) skb; 3375 ieee80211_tx_skb(sdata, skb); 3376 ret = 0; 3377 goto out_unlock; 3378 } 3379 3380 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | 3381 IEEE80211_TX_INTFL_OFFCHAN_TX_OK; 3382 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) 3383 IEEE80211_SKB_CB(skb)->hw_queue = 3384 local->hw.offchannel_tx_hw_queue; 3385 3386 /* This will handle all kinds of coalescing and immediate TX */ 3387 ret = ieee80211_start_roc_work(local, sdata, params->chan, 3388 params->wait, cookie, skb, 3389 IEEE80211_ROC_TYPE_MGMT_TX); 3390 if (ret) 3391 kfree_skb(skb); 3392 out_unlock: 3393 mutex_unlock(&local->mtx); 3394 return ret; 3395 } 3396 3397 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 3398 struct wireless_dev *wdev, 3399 u64 cookie) 3400 { 3401 struct ieee80211_local *local = wiphy_priv(wiphy); 3402 3403 return ieee80211_cancel_roc(local, cookie, true); 3404 } 3405 3406 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3407 struct wireless_dev *wdev, 3408 u16 frame_type, bool reg) 3409 { 3410 struct ieee80211_local *local = wiphy_priv(wiphy); 3411 3412 switch (frame_type) { 3413 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3414 if (reg) 3415 local->probe_req_reg++; 3416 else 3417 local->probe_req_reg--; 3418 3419 if (!local->open_count) 3420 break; 3421 3422 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 3423 break; 3424 default: 3425 break; 3426 } 3427 } 3428 3429 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3430 { 3431 struct ieee80211_local *local = wiphy_priv(wiphy); 3432 3433 if (local->started) 3434 return -EOPNOTSUPP; 3435 3436 return drv_set_antenna(local, tx_ant, rx_ant); 3437 } 3438 3439 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3440 { 3441 struct ieee80211_local *local = wiphy_priv(wiphy); 3442 3443 return drv_get_antenna(local, tx_ant, rx_ant); 3444 } 3445 3446 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3447 struct net_device *dev, 3448 struct cfg80211_gtk_rekey_data *data) 3449 { 3450 struct ieee80211_local *local = wiphy_priv(wiphy); 3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3452 3453 if (!local->ops->set_rekey_data) 3454 return -EOPNOTSUPP; 3455 3456 drv_set_rekey_data(local, sdata, data); 3457 3458 return 0; 3459 } 3460 3461 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3462 const u8 *peer, u64 *cookie) 3463 { 3464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3465 struct ieee80211_local *local = sdata->local; 3466 struct ieee80211_qos_hdr *nullfunc; 3467 struct sk_buff *skb; 3468 int size = sizeof(*nullfunc); 3469 __le16 fc; 3470 bool qos; 3471 struct ieee80211_tx_info *info; 3472 struct sta_info *sta; 3473 struct ieee80211_chanctx_conf *chanctx_conf; 3474 enum ieee80211_band band; 3475 3476 rcu_read_lock(); 3477 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3478 if (WARN_ON(!chanctx_conf)) { 3479 rcu_read_unlock(); 3480 return -EINVAL; 3481 } 3482 band = chanctx_conf->def.chan->band; 3483 sta = sta_info_get_bss(sdata, peer); 3484 if (sta) { 3485 qos = sta->sta.wme; 3486 } else { 3487 rcu_read_unlock(); 3488 return -ENOLINK; 3489 } 3490 3491 if (qos) { 3492 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3493 IEEE80211_STYPE_QOS_NULLFUNC | 3494 IEEE80211_FCTL_FROMDS); 3495 } else { 3496 size -= 2; 3497 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3498 IEEE80211_STYPE_NULLFUNC | 3499 IEEE80211_FCTL_FROMDS); 3500 } 3501 3502 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3503 if (!skb) { 3504 rcu_read_unlock(); 3505 return -ENOMEM; 3506 } 3507 3508 skb->dev = dev; 3509 3510 skb_reserve(skb, local->hw.extra_tx_headroom); 3511 3512 nullfunc = (void *) skb_put(skb, size); 3513 nullfunc->frame_control = fc; 3514 nullfunc->duration_id = 0; 3515 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3516 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3517 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3518 nullfunc->seq_ctrl = 0; 3519 3520 info = IEEE80211_SKB_CB(skb); 3521 3522 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3523 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3524 info->band = band; 3525 3526 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3527 skb->priority = 7; 3528 if (qos) 3529 nullfunc->qos_ctrl = cpu_to_le16(7); 3530 3531 local_bh_disable(); 3532 ieee80211_xmit(sdata, skb); 3533 local_bh_enable(); 3534 rcu_read_unlock(); 3535 3536 *cookie = (unsigned long) skb; 3537 return 0; 3538 } 3539 3540 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3541 struct wireless_dev *wdev, 3542 struct cfg80211_chan_def *chandef) 3543 { 3544 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3545 struct ieee80211_local *local = wiphy_priv(wiphy); 3546 struct ieee80211_chanctx_conf *chanctx_conf; 3547 int ret = -ENODATA; 3548 3549 rcu_read_lock(); 3550 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3551 if (chanctx_conf) { 3552 *chandef = sdata->vif.bss_conf.chandef; 3553 ret = 0; 3554 } else if (local->open_count > 0 && 3555 local->open_count == local->monitors && 3556 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3557 if (local->use_chanctx) 3558 *chandef = local->monitor_chandef; 3559 else 3560 *chandef = local->_oper_chandef; 3561 ret = 0; 3562 } 3563 rcu_read_unlock(); 3564 3565 return ret; 3566 } 3567 3568 #ifdef CONFIG_PM 3569 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3570 { 3571 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3572 } 3573 #endif 3574 3575 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3576 struct net_device *dev, 3577 struct cfg80211_qos_map *qos_map) 3578 { 3579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3580 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3581 3582 if (qos_map) { 3583 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3584 if (!new_qos_map) 3585 return -ENOMEM; 3586 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3587 } else { 3588 /* A NULL qos_map was passed to disable QoS mapping */ 3589 new_qos_map = NULL; 3590 } 3591 3592 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3593 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3594 if (old_qos_map) 3595 kfree_rcu(old_qos_map, rcu_head); 3596 3597 return 0; 3598 } 3599 3600 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3601 struct net_device *dev, 3602 struct cfg80211_chan_def *chandef) 3603 { 3604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3605 int ret; 3606 u32 changed = 0; 3607 3608 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3609 if (ret == 0) 3610 ieee80211_bss_info_change_notify(sdata, changed); 3611 3612 return ret; 3613 } 3614 3615 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3616 u8 tsid, const u8 *peer, u8 up, 3617 u16 admitted_time) 3618 { 3619 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3620 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3621 int ac = ieee802_1d_to_ac[up]; 3622 3623 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3624 return -EOPNOTSUPP; 3625 3626 if (!(sdata->wmm_acm & BIT(up))) 3627 return -EINVAL; 3628 3629 if (ifmgd->tx_tspec[ac].admitted_time) 3630 return -EBUSY; 3631 3632 if (admitted_time) { 3633 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3634 ifmgd->tx_tspec[ac].tsid = tsid; 3635 ifmgd->tx_tspec[ac].up = up; 3636 } 3637 3638 return 0; 3639 } 3640 3641 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3642 u8 tsid, const u8 *peer) 3643 { 3644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3645 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3646 struct ieee80211_local *local = wiphy_priv(wiphy); 3647 int ac; 3648 3649 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3650 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3651 3652 /* skip unused entries */ 3653 if (!tx_tspec->admitted_time) 3654 continue; 3655 3656 if (tx_tspec->tsid != tsid) 3657 continue; 3658 3659 /* due to this new packets will be reassigned to non-ACM ACs */ 3660 tx_tspec->up = -1; 3661 3662 /* Make sure that all packets have been sent to avoid to 3663 * restore the QoS params on packets that are still on the 3664 * queues. 3665 */ 3666 synchronize_net(); 3667 ieee80211_flush_queues(local, sdata); 3668 3669 /* restore the normal QoS parameters 3670 * (unconditionally to avoid races) 3671 */ 3672 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3673 tx_tspec->downgraded = false; 3674 ieee80211_sta_handle_tspec_ac_params(sdata); 3675 3676 /* finally clear all the data */ 3677 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3678 3679 return 0; 3680 } 3681 3682 return -ENOENT; 3683 } 3684 3685 const struct cfg80211_ops mac80211_config_ops = { 3686 .add_virtual_intf = ieee80211_add_iface, 3687 .del_virtual_intf = ieee80211_del_iface, 3688 .change_virtual_intf = ieee80211_change_iface, 3689 .start_p2p_device = ieee80211_start_p2p_device, 3690 .stop_p2p_device = ieee80211_stop_p2p_device, 3691 .add_key = ieee80211_add_key, 3692 .del_key = ieee80211_del_key, 3693 .get_key = ieee80211_get_key, 3694 .set_default_key = ieee80211_config_default_key, 3695 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3696 .start_ap = ieee80211_start_ap, 3697 .change_beacon = ieee80211_change_beacon, 3698 .stop_ap = ieee80211_stop_ap, 3699 .add_station = ieee80211_add_station, 3700 .del_station = ieee80211_del_station, 3701 .change_station = ieee80211_change_station, 3702 .get_station = ieee80211_get_station, 3703 .dump_station = ieee80211_dump_station, 3704 .dump_survey = ieee80211_dump_survey, 3705 #ifdef CONFIG_MAC80211_MESH 3706 .add_mpath = ieee80211_add_mpath, 3707 .del_mpath = ieee80211_del_mpath, 3708 .change_mpath = ieee80211_change_mpath, 3709 .get_mpath = ieee80211_get_mpath, 3710 .dump_mpath = ieee80211_dump_mpath, 3711 .get_mpp = ieee80211_get_mpp, 3712 .dump_mpp = ieee80211_dump_mpp, 3713 .update_mesh_config = ieee80211_update_mesh_config, 3714 .get_mesh_config = ieee80211_get_mesh_config, 3715 .join_mesh = ieee80211_join_mesh, 3716 .leave_mesh = ieee80211_leave_mesh, 3717 #endif 3718 .join_ocb = ieee80211_join_ocb, 3719 .leave_ocb = ieee80211_leave_ocb, 3720 .change_bss = ieee80211_change_bss, 3721 .set_txq_params = ieee80211_set_txq_params, 3722 .set_monitor_channel = ieee80211_set_monitor_channel, 3723 .suspend = ieee80211_suspend, 3724 .resume = ieee80211_resume, 3725 .scan = ieee80211_scan, 3726 .sched_scan_start = ieee80211_sched_scan_start, 3727 .sched_scan_stop = ieee80211_sched_scan_stop, 3728 .auth = ieee80211_auth, 3729 .assoc = ieee80211_assoc, 3730 .deauth = ieee80211_deauth, 3731 .disassoc = ieee80211_disassoc, 3732 .join_ibss = ieee80211_join_ibss, 3733 .leave_ibss = ieee80211_leave_ibss, 3734 .set_mcast_rate = ieee80211_set_mcast_rate, 3735 .set_wiphy_params = ieee80211_set_wiphy_params, 3736 .set_tx_power = ieee80211_set_tx_power, 3737 .get_tx_power = ieee80211_get_tx_power, 3738 .set_wds_peer = ieee80211_set_wds_peer, 3739 .rfkill_poll = ieee80211_rfkill_poll, 3740 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3741 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3742 .set_power_mgmt = ieee80211_set_power_mgmt, 3743 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3744 .remain_on_channel = ieee80211_remain_on_channel, 3745 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3746 .mgmt_tx = ieee80211_mgmt_tx, 3747 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3748 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3749 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3750 .set_antenna = ieee80211_set_antenna, 3751 .get_antenna = ieee80211_get_antenna, 3752 .set_rekey_data = ieee80211_set_rekey_data, 3753 .tdls_oper = ieee80211_tdls_oper, 3754 .tdls_mgmt = ieee80211_tdls_mgmt, 3755 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3756 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3757 .probe_client = ieee80211_probe_client, 3758 .set_noack_map = ieee80211_set_noack_map, 3759 #ifdef CONFIG_PM 3760 .set_wakeup = ieee80211_set_wakeup, 3761 #endif 3762 .get_channel = ieee80211_cfg_get_channel, 3763 .start_radar_detection = ieee80211_start_radar_detection, 3764 .channel_switch = ieee80211_channel_switch, 3765 .set_qos_map = ieee80211_set_qos_map, 3766 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3767 .add_tx_ts = ieee80211_add_tx_ts, 3768 .del_tx_ts = ieee80211_del_tx_ts, 3769 }; 3770