1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * ieee80211_link_or_deflink(struct ieee80211_sub_if_data * sdata,int link_id,bool require_valid)27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config params,struct ieee80211_bss_conf * link_conf)140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 ret = ieee80211_if_change_type(sdata, type); 218 if (ret) 219 return ret; 220 221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 223 ieee80211_check_fast_rx_iface(sdata); 224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 226 227 if (params->use_4addr == ifmgd->use_4addr) 228 return 0; 229 230 /* FIXME: no support for 4-addr MLO yet */ 231 if (ieee80211_vif_is_mld(&sdata->vif)) 232 return -EOPNOTSUPP; 233 234 sdata->u.mgd.use_4addr = params->use_4addr; 235 if (!ifmgd->associated) 236 return 0; 237 238 mutex_lock(&local->sta_mtx); 239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 240 if (sta) 241 drv_sta_set_4addr(local, sdata, &sta->sta, 242 params->use_4addr); 243 mutex_unlock(&local->sta_mtx); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 mutex_lock(&sdata->local->chanctx_mtx); 265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 266 mutex_unlock(&sdata->local->chanctx_mtx); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 mutex_lock(&sdata->local->chanctx_mtx); 287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 288 mutex_unlock(&sdata->local->chanctx_mtx); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 mutex_lock(&local->key_mtx); 456 key = key_mtx_dereference(local, sta->ptk[key_idx]); 457 458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 459 ret = ieee80211_set_tx_key(key); 460 461 mutex_unlock(&local->key_mtx); 462 return ret; 463 } 464 ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 466 int link_id, u8 key_idx, bool pairwise, 467 const u8 *mac_addr, struct key_params *params) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_link_data *link = 471 ieee80211_link_or_deflink(sdata, link_id, false); 472 struct ieee80211_local *local = sdata->local; 473 struct sta_info *sta = NULL; 474 struct ieee80211_key *key; 475 int err; 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 mutex_lock(&local->sta_mtx); 514 515 if (mac_addr) { 516 sta = sta_info_get_bss(sdata, mac_addr); 517 /* 518 * The ASSOC test makes sure the driver is ready to 519 * receive the key. When wpa_supplicant has roamed 520 * using FT, it attempts to set the key before 521 * association has completed, this rejects that attempt 522 * so it will set the key again after association. 523 * 524 * TODO: accept the key if we have a station entry and 525 * add it to the device after the station. 526 */ 527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 528 ieee80211_key_free_unused(key); 529 err = -ENOENT; 530 goto out_unlock; 531 } 532 } 533 534 switch (sdata->vif.type) { 535 case NL80211_IFTYPE_STATION: 536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 538 break; 539 case NL80211_IFTYPE_AP: 540 case NL80211_IFTYPE_AP_VLAN: 541 /* Keys without a station are used for TX only */ 542 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 544 break; 545 case NL80211_IFTYPE_ADHOC: 546 /* no MFP (yet) */ 547 break; 548 case NL80211_IFTYPE_MESH_POINT: 549 #ifdef CONFIG_MAC80211_MESH 550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 552 break; 553 #endif 554 case NL80211_IFTYPE_WDS: 555 case NL80211_IFTYPE_MONITOR: 556 case NL80211_IFTYPE_P2P_DEVICE: 557 case NL80211_IFTYPE_NAN: 558 case NL80211_IFTYPE_UNSPECIFIED: 559 case NUM_NL80211_IFTYPES: 560 case NL80211_IFTYPE_P2P_CLIENT: 561 case NL80211_IFTYPE_P2P_GO: 562 case NL80211_IFTYPE_OCB: 563 /* shouldn't happen */ 564 WARN_ON_ONCE(1); 565 break; 566 } 567 568 err = ieee80211_key_link(key, link, sta); 569 /* KRACK protection, shouldn't happen but just silently accept key */ 570 if (err == -EALREADY) 571 err = 0; 572 573 out_unlock: 574 mutex_unlock(&local->sta_mtx); 575 576 return err; 577 } 578 579 static struct ieee80211_key * ieee80211_lookup_key(struct ieee80211_sub_if_data * sdata,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)580 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 581 u8 key_idx, bool pairwise, const u8 *mac_addr) 582 { 583 struct ieee80211_local *local __maybe_unused = sdata->local; 584 struct ieee80211_link_data *link = &sdata->deflink; 585 struct ieee80211_key *key; 586 587 if (link_id >= 0) { 588 link = rcu_dereference_check(sdata->link[link_id], 589 lockdep_is_held(&sdata->wdev.mtx)); 590 if (!link) 591 return NULL; 592 } 593 594 if (mac_addr) { 595 struct sta_info *sta; 596 struct link_sta_info *link_sta; 597 598 sta = sta_info_get_bss(sdata, mac_addr); 599 if (!sta) 600 return NULL; 601 602 if (link_id >= 0) { 603 link_sta = rcu_dereference_check(sta->link[link_id], 604 lockdep_is_held(&local->sta_mtx)); 605 if (!link_sta) 606 return NULL; 607 } else { 608 link_sta = &sta->deflink; 609 } 610 611 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 612 return rcu_dereference_check_key_mtx(local, 613 sta->ptk[key_idx]); 614 615 if (!pairwise && 616 key_idx < NUM_DEFAULT_KEYS + 617 NUM_DEFAULT_MGMT_KEYS + 618 NUM_DEFAULT_BEACON_KEYS) 619 return rcu_dereference_check_key_mtx(local, 620 link_sta->gtk[key_idx]); 621 622 return NULL; 623 } 624 625 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 626 return rcu_dereference_check_key_mtx(local, 627 sdata->keys[key_idx]); 628 629 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 630 if (key) 631 return key; 632 633 /* or maybe it was a WEP key */ 634 if (key_idx < NUM_DEFAULT_KEYS) 635 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 636 637 return NULL; 638 } 639 ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)640 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 641 int link_id, u8 key_idx, bool pairwise, 642 const u8 *mac_addr) 643 { 644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 645 struct ieee80211_local *local = sdata->local; 646 struct ieee80211_key *key; 647 int ret; 648 649 mutex_lock(&local->sta_mtx); 650 mutex_lock(&local->key_mtx); 651 652 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 653 if (!key) { 654 ret = -ENOENT; 655 goto out_unlock; 656 } 657 658 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 659 660 ret = 0; 661 out_unlock: 662 mutex_unlock(&local->key_mtx); 663 mutex_unlock(&local->sta_mtx); 664 665 return ret; 666 } 667 ieee80211_get_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))668 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 669 int link_id, u8 key_idx, bool pairwise, 670 const u8 *mac_addr, void *cookie, 671 void (*callback)(void *cookie, 672 struct key_params *params)) 673 { 674 struct ieee80211_sub_if_data *sdata; 675 u8 seq[6] = {0}; 676 struct key_params params; 677 struct ieee80211_key *key; 678 u64 pn64; 679 u32 iv32; 680 u16 iv16; 681 int err = -ENOENT; 682 struct ieee80211_key_seq kseq = {}; 683 684 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 685 686 rcu_read_lock(); 687 688 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 689 if (!key) 690 goto out; 691 692 memset(¶ms, 0, sizeof(params)); 693 694 params.cipher = key->conf.cipher; 695 696 switch (key->conf.cipher) { 697 case WLAN_CIPHER_SUITE_TKIP: 698 pn64 = atomic64_read(&key->conf.tx_pn); 699 iv32 = TKIP_PN_TO_IV32(pn64); 700 iv16 = TKIP_PN_TO_IV16(pn64); 701 702 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 703 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 704 drv_get_key_seq(sdata->local, key, &kseq); 705 iv32 = kseq.tkip.iv32; 706 iv16 = kseq.tkip.iv16; 707 } 708 709 seq[0] = iv16 & 0xff; 710 seq[1] = (iv16 >> 8) & 0xff; 711 seq[2] = iv32 & 0xff; 712 seq[3] = (iv32 >> 8) & 0xff; 713 seq[4] = (iv32 >> 16) & 0xff; 714 seq[5] = (iv32 >> 24) & 0xff; 715 params.seq = seq; 716 params.seq_len = 6; 717 break; 718 case WLAN_CIPHER_SUITE_CCMP: 719 case WLAN_CIPHER_SUITE_CCMP_256: 720 case WLAN_CIPHER_SUITE_AES_CMAC: 721 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 722 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 723 offsetof(typeof(kseq), aes_cmac)); 724 fallthrough; 725 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 726 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 727 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 728 offsetof(typeof(kseq), aes_gmac)); 729 fallthrough; 730 case WLAN_CIPHER_SUITE_GCMP: 731 case WLAN_CIPHER_SUITE_GCMP_256: 732 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 733 offsetof(typeof(kseq), gcmp)); 734 735 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 736 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 737 drv_get_key_seq(sdata->local, key, &kseq); 738 memcpy(seq, kseq.ccmp.pn, 6); 739 } else { 740 pn64 = atomic64_read(&key->conf.tx_pn); 741 seq[0] = pn64; 742 seq[1] = pn64 >> 8; 743 seq[2] = pn64 >> 16; 744 seq[3] = pn64 >> 24; 745 seq[4] = pn64 >> 32; 746 seq[5] = pn64 >> 40; 747 } 748 params.seq = seq; 749 params.seq_len = 6; 750 break; 751 default: 752 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 753 break; 754 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 755 break; 756 drv_get_key_seq(sdata->local, key, &kseq); 757 params.seq = kseq.hw.seq; 758 params.seq_len = kseq.hw.seq_len; 759 break; 760 } 761 762 params.key = key->conf.key; 763 params.key_len = key->conf.keylen; 764 765 callback(cookie, ¶ms); 766 err = 0; 767 768 out: 769 rcu_read_unlock(); 770 return err; 771 } 772 ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool uni,bool multi)773 static int ieee80211_config_default_key(struct wiphy *wiphy, 774 struct net_device *dev, 775 int link_id, u8 key_idx, bool uni, 776 bool multi) 777 { 778 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 779 struct ieee80211_link_data *link = 780 ieee80211_link_or_deflink(sdata, link_id, false); 781 782 if (IS_ERR(link)) 783 return PTR_ERR(link); 784 785 ieee80211_set_default_key(link, key_idx, uni, multi); 786 787 return 0; 788 } 789 ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)790 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 791 struct net_device *dev, 792 int link_id, u8 key_idx) 793 { 794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 795 struct ieee80211_link_data *link = 796 ieee80211_link_or_deflink(sdata, link_id, true); 797 798 if (IS_ERR(link)) 799 return PTR_ERR(link); 800 801 ieee80211_set_default_mgmt_key(link, key_idx); 802 803 return 0; 804 } 805 ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)806 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 807 struct net_device *dev, 808 int link_id, u8 key_idx) 809 { 810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 811 struct ieee80211_link_data *link = 812 ieee80211_link_or_deflink(sdata, link_id, true); 813 814 if (IS_ERR(link)) 815 return PTR_ERR(link); 816 817 ieee80211_set_default_beacon_key(link, key_idx); 818 819 return 0; 820 } 821 sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)822 void sta_set_rate_info_tx(struct sta_info *sta, 823 const struct ieee80211_tx_rate *rate, 824 struct rate_info *rinfo) 825 { 826 rinfo->flags = 0; 827 if (rate->flags & IEEE80211_TX_RC_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_MCS; 829 rinfo->mcs = rate->idx; 830 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 831 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 832 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 833 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 834 } else { 835 struct ieee80211_supported_band *sband; 836 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 837 u16 brate; 838 839 sband = ieee80211_get_sband(sta->sdata); 840 WARN_ON_ONCE(sband && !sband->bitrates); 841 if (sband && sband->bitrates) { 842 brate = sband->bitrates[rate->idx].bitrate; 843 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 844 } 845 } 846 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 847 rinfo->bw = RATE_INFO_BW_40; 848 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 849 rinfo->bw = RATE_INFO_BW_80; 850 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 851 rinfo->bw = RATE_INFO_BW_160; 852 else 853 rinfo->bw = RATE_INFO_BW_20; 854 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 855 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 856 } 857 ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)858 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 859 int idx, u8 *mac, struct station_info *sinfo) 860 { 861 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 862 struct ieee80211_local *local = sdata->local; 863 struct sta_info *sta; 864 int ret = -ENOENT; 865 866 mutex_lock(&local->sta_mtx); 867 868 sta = sta_info_get_by_idx(sdata, idx); 869 if (sta) { 870 ret = 0; 871 memcpy(mac, sta->sta.addr, ETH_ALEN); 872 sta_set_sinfo(sta, sinfo, true); 873 } 874 875 mutex_unlock(&local->sta_mtx); 876 877 return ret; 878 } 879 ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)880 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 881 int idx, struct survey_info *survey) 882 { 883 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 884 885 return drv_get_survey(local, idx, survey); 886 } 887 ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)888 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 889 const u8 *mac, struct station_info *sinfo) 890 { 891 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 892 struct ieee80211_local *local = sdata->local; 893 struct sta_info *sta; 894 int ret = -ENOENT; 895 896 mutex_lock(&local->sta_mtx); 897 898 sta = sta_info_get_bss(sdata, mac); 899 if (sta) { 900 ret = 0; 901 sta_set_sinfo(sta, sinfo, true); 902 } 903 904 mutex_unlock(&local->sta_mtx); 905 906 return ret; 907 } 908 ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)909 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 910 struct cfg80211_chan_def *chandef) 911 { 912 struct ieee80211_local *local = wiphy_priv(wiphy); 913 struct ieee80211_sub_if_data *sdata; 914 int ret = 0; 915 916 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 917 return 0; 918 919 if (local->use_chanctx) { 920 sdata = wiphy_dereference(local->hw.wiphy, 921 local->monitor_sdata); 922 if (sdata) { 923 sdata_lock(sdata); 924 mutex_lock(&local->mtx); 925 ieee80211_link_release_channel(&sdata->deflink); 926 ret = ieee80211_link_use_channel(&sdata->deflink, 927 chandef, 928 IEEE80211_CHANCTX_EXCLUSIVE); 929 mutex_unlock(&local->mtx); 930 sdata_unlock(sdata); 931 } 932 } else { 933 mutex_lock(&local->mtx); 934 if (local->open_count == local->monitors) { 935 local->_oper_chandef = *chandef; 936 ieee80211_hw_config(local, 0); 937 } 938 mutex_unlock(&local->mtx); 939 } 940 941 if (ret == 0) 942 local->monitor_chandef = *chandef; 943 944 return ret; 945 } 946 947 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,struct ieee80211_link_data * link)948 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 949 const u8 *resp, size_t resp_len, 950 const struct ieee80211_csa_settings *csa, 951 const struct ieee80211_color_change_settings *cca, 952 struct ieee80211_link_data *link) 953 { 954 struct probe_resp *new, *old; 955 956 if (!resp || !resp_len) 957 return 1; 958 959 old = sdata_dereference(link->u.ap.probe_resp, sdata); 960 961 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 962 if (!new) 963 return -ENOMEM; 964 965 new->len = resp_len; 966 memcpy(new->data, resp, resp_len); 967 968 if (csa) 969 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 970 csa->n_counter_offsets_presp * 971 sizeof(new->cntdwn_counter_offsets[0])); 972 else if (cca) 973 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 974 975 rcu_assign_pointer(link->u.ap.probe_resp, new); 976 if (old) 977 kfree_rcu(old, rcu_head); 978 979 return 0; 980 } 981 ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf)982 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 983 struct cfg80211_fils_discovery *params, 984 struct ieee80211_link_data *link, 985 struct ieee80211_bss_conf *link_conf) 986 { 987 struct fils_discovery_data *new, *old = NULL; 988 struct ieee80211_fils_discovery *fd; 989 990 if (!params->tmpl || !params->tmpl_len) 991 return -EINVAL; 992 993 fd = &link_conf->fils_discovery; 994 fd->min_interval = params->min_interval; 995 fd->max_interval = params->max_interval; 996 997 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 998 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 999 if (!new) 1000 return -ENOMEM; 1001 new->len = params->tmpl_len; 1002 memcpy(new->data, params->tmpl, params->tmpl_len); 1003 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1004 1005 if (old) 1006 kfree_rcu(old, rcu_head); 1007 1008 return 0; 1009 } 1010 1011 static int ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf)1012 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1013 struct cfg80211_unsol_bcast_probe_resp *params, 1014 struct ieee80211_link_data *link, 1015 struct ieee80211_bss_conf *link_conf) 1016 { 1017 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1018 1019 if (!params->tmpl || !params->tmpl_len) 1020 return -EINVAL; 1021 1022 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1023 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1024 if (!new) 1025 return -ENOMEM; 1026 new->len = params->tmpl_len; 1027 memcpy(new->data, params->tmpl, params->tmpl_len); 1028 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1029 1030 if (old) 1031 kfree_rcu(old, rcu_head); 1032 1033 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1034 1035 return 0; 1036 } 1037 ieee80211_set_ftm_responder_params(struct ieee80211_sub_if_data * sdata,const u8 * lci,size_t lci_len,const u8 * civicloc,size_t civicloc_len,struct ieee80211_bss_conf * link_conf)1038 static int ieee80211_set_ftm_responder_params( 1039 struct ieee80211_sub_if_data *sdata, 1040 const u8 *lci, size_t lci_len, 1041 const u8 *civicloc, size_t civicloc_len, 1042 struct ieee80211_bss_conf *link_conf) 1043 { 1044 struct ieee80211_ftm_responder_params *new, *old; 1045 u8 *pos; 1046 int len; 1047 1048 if (!lci_len && !civicloc_len) 1049 return 0; 1050 1051 old = link_conf->ftmr_params; 1052 len = lci_len + civicloc_len; 1053 1054 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1055 if (!new) 1056 return -ENOMEM; 1057 1058 pos = (u8 *)(new + 1); 1059 if (lci_len) { 1060 new->lci_len = lci_len; 1061 new->lci = pos; 1062 memcpy(pos, lci, lci_len); 1063 pos += lci_len; 1064 } 1065 1066 if (civicloc_len) { 1067 new->civicloc_len = civicloc_len; 1068 new->civicloc = pos; 1069 memcpy(pos, civicloc, civicloc_len); 1070 pos += civicloc_len; 1071 } 1072 1073 link_conf->ftmr_params = new; 1074 kfree(old); 1075 1076 return 0; 1077 } 1078 1079 static int ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)1080 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1081 struct cfg80211_mbssid_elems *src) 1082 { 1083 int i, offset = 0; 1084 1085 dst->cnt = src->cnt; 1086 for (i = 0; i < src->cnt; i++) { 1087 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1088 dst->elem[i].len = src->elem[i].len; 1089 dst->elem[i].data = pos + offset; 1090 offset += dst->elem[i].len; 1091 } 1092 1093 return offset; 1094 } 1095 1096 static int ieee80211_copy_rnr_beacon(u8 * pos,struct cfg80211_rnr_elems * dst,struct cfg80211_rnr_elems * src)1097 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1098 struct cfg80211_rnr_elems *src) 1099 { 1100 int i, offset = 0; 1101 1102 for (i = 0; i < src->cnt; i++) { 1103 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1104 dst->elem[i].len = src->elem[i].len; 1105 dst->elem[i].data = pos + offset; 1106 offset += dst->elem[i].len; 1107 } 1108 dst->cnt = src->cnt; 1109 1110 return offset; 1111 } 1112 1113 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,u64 * changed)1114 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1115 struct ieee80211_link_data *link, 1116 struct cfg80211_beacon_data *params, 1117 const struct ieee80211_csa_settings *csa, 1118 const struct ieee80211_color_change_settings *cca, 1119 u64 *changed) 1120 { 1121 struct cfg80211_mbssid_elems *mbssid = NULL; 1122 struct cfg80211_rnr_elems *rnr = NULL; 1123 struct beacon_data *new, *old; 1124 int new_head_len, new_tail_len; 1125 int size, err; 1126 u64 _changed = BSS_CHANGED_BEACON; 1127 struct ieee80211_bss_conf *link_conf = link->conf; 1128 1129 old = sdata_dereference(link->u.ap.beacon, sdata); 1130 1131 /* Need to have a beacon head if we don't have one yet */ 1132 if (!params->head && !old) 1133 return -EINVAL; 1134 1135 /* new or old head? */ 1136 if (params->head) 1137 new_head_len = params->head_len; 1138 else 1139 new_head_len = old->head_len; 1140 1141 /* new or old tail? */ 1142 if (params->tail || !old) 1143 /* params->tail_len will be zero for !params->tail */ 1144 new_tail_len = params->tail_len; 1145 else 1146 new_tail_len = old->tail_len; 1147 1148 size = sizeof(*new) + new_head_len + new_tail_len; 1149 1150 /* new or old multiple BSSID elements? */ 1151 if (params->mbssid_ies) { 1152 mbssid = params->mbssid_ies; 1153 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1154 if (params->rnr_ies) { 1155 rnr = params->rnr_ies; 1156 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1157 } 1158 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1159 mbssid->cnt); 1160 } else if (old && old->mbssid_ies) { 1161 mbssid = old->mbssid_ies; 1162 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1163 if (old && old->rnr_ies) { 1164 rnr = old->rnr_ies; 1165 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1166 } 1167 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1168 mbssid->cnt); 1169 } 1170 1171 new = kzalloc(size, GFP_KERNEL); 1172 if (!new) 1173 return -ENOMEM; 1174 1175 /* start filling the new info now */ 1176 1177 /* 1178 * pointers go into the block we allocated, 1179 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1180 */ 1181 new->head = ((u8 *) new) + sizeof(*new); 1182 new->tail = new->head + new_head_len; 1183 new->head_len = new_head_len; 1184 new->tail_len = new_tail_len; 1185 /* copy in optional mbssid_ies */ 1186 if (mbssid) { 1187 u8 *pos = new->tail + new->tail_len; 1188 1189 new->mbssid_ies = (void *)pos; 1190 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1191 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1192 mbssid); 1193 if (rnr) { 1194 new->rnr_ies = (void *)pos; 1195 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1196 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1197 } 1198 /* update bssid_indicator */ 1199 link_conf->bssid_indicator = 1200 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1201 } 1202 1203 if (csa) { 1204 new->cntdwn_current_counter = csa->count; 1205 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1206 csa->n_counter_offsets_beacon * 1207 sizeof(new->cntdwn_counter_offsets[0])); 1208 } else if (cca) { 1209 new->cntdwn_current_counter = cca->count; 1210 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1211 } 1212 1213 /* copy in head */ 1214 if (params->head) 1215 memcpy(new->head, params->head, new_head_len); 1216 else 1217 memcpy(new->head, old->head, new_head_len); 1218 1219 /* copy in optional tail */ 1220 if (params->tail) 1221 memcpy(new->tail, params->tail, new_tail_len); 1222 else 1223 if (old) 1224 memcpy(new->tail, old->tail, new_tail_len); 1225 1226 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1227 params->probe_resp_len, csa, cca, link); 1228 if (err < 0) { 1229 kfree(new); 1230 return err; 1231 } 1232 if (err == 0) 1233 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1234 1235 if (params->ftm_responder != -1) { 1236 link_conf->ftm_responder = params->ftm_responder; 1237 err = ieee80211_set_ftm_responder_params(sdata, 1238 params->lci, 1239 params->lci_len, 1240 params->civicloc, 1241 params->civicloc_len, 1242 link_conf); 1243 1244 if (err < 0) { 1245 kfree(new); 1246 return err; 1247 } 1248 1249 _changed |= BSS_CHANGED_FTM_RESPONDER; 1250 } 1251 1252 rcu_assign_pointer(link->u.ap.beacon, new); 1253 sdata->u.ap.active = true; 1254 1255 if (old) 1256 kfree_rcu(old, rcu_head); 1257 1258 *changed |= _changed; 1259 return 0; 1260 } 1261 ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1262 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1263 struct cfg80211_ap_settings *params) 1264 { 1265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1266 struct ieee80211_local *local = sdata->local; 1267 struct beacon_data *old; 1268 struct ieee80211_sub_if_data *vlan; 1269 u64 changed = BSS_CHANGED_BEACON_INT | 1270 BSS_CHANGED_BEACON_ENABLED | 1271 BSS_CHANGED_BEACON | 1272 BSS_CHANGED_P2P_PS | 1273 BSS_CHANGED_TXPOWER | 1274 BSS_CHANGED_TWT; 1275 int i, err; 1276 int prev_beacon_int; 1277 unsigned int link_id = params->beacon.link_id; 1278 struct ieee80211_link_data *link; 1279 struct ieee80211_bss_conf *link_conf; 1280 1281 link = sdata_dereference(sdata->link[link_id], sdata); 1282 if (!link) 1283 return -ENOLINK; 1284 1285 link_conf = link->conf; 1286 1287 old = sdata_dereference(link->u.ap.beacon, sdata); 1288 if (old) 1289 return -EALREADY; 1290 1291 if (params->smps_mode != NL80211_SMPS_OFF) 1292 return -ENOTSUPP; 1293 1294 link->smps_mode = IEEE80211_SMPS_OFF; 1295 1296 link->needed_rx_chains = sdata->local->rx_chains; 1297 1298 prev_beacon_int = link_conf->beacon_int; 1299 link_conf->beacon_int = params->beacon_interval; 1300 1301 if (params->ht_cap) 1302 link_conf->ht_ldpc = 1303 params->ht_cap->cap_info & 1304 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1305 1306 if (params->vht_cap) { 1307 link_conf->vht_ldpc = 1308 params->vht_cap->vht_cap_info & 1309 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1310 link_conf->vht_su_beamformer = 1311 params->vht_cap->vht_cap_info & 1312 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1313 link_conf->vht_su_beamformee = 1314 params->vht_cap->vht_cap_info & 1315 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1316 link_conf->vht_mu_beamformer = 1317 params->vht_cap->vht_cap_info & 1318 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1319 link_conf->vht_mu_beamformee = 1320 params->vht_cap->vht_cap_info & 1321 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1322 } 1323 1324 if (params->he_cap && params->he_oper) { 1325 link_conf->he_support = true; 1326 link_conf->htc_trig_based_pkt_ext = 1327 le32_get_bits(params->he_oper->he_oper_params, 1328 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1329 link_conf->frame_time_rts_th = 1330 le32_get_bits(params->he_oper->he_oper_params, 1331 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1332 changed |= BSS_CHANGED_HE_OBSS_PD; 1333 1334 if (params->beacon.he_bss_color.enabled) 1335 changed |= BSS_CHANGED_HE_BSS_COLOR; 1336 } 1337 1338 if (params->he_cap) { 1339 link_conf->he_ldpc = 1340 params->he_cap->phy_cap_info[1] & 1341 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1342 link_conf->he_su_beamformer = 1343 params->he_cap->phy_cap_info[3] & 1344 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1345 link_conf->he_su_beamformee = 1346 params->he_cap->phy_cap_info[4] & 1347 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1348 link_conf->he_mu_beamformer = 1349 params->he_cap->phy_cap_info[4] & 1350 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1351 link_conf->he_full_ul_mumimo = 1352 params->he_cap->phy_cap_info[2] & 1353 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1354 } 1355 1356 if (params->eht_cap) { 1357 if (!link_conf->he_support) 1358 return -EOPNOTSUPP; 1359 1360 link_conf->eht_support = true; 1361 link_conf->eht_puncturing = params->punct_bitmap; 1362 changed |= BSS_CHANGED_EHT_PUNCTURING; 1363 1364 link_conf->eht_su_beamformer = 1365 params->eht_cap->fixed.phy_cap_info[0] & 1366 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1367 link_conf->eht_su_beamformee = 1368 params->eht_cap->fixed.phy_cap_info[0] & 1369 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1370 link_conf->eht_mu_beamformer = 1371 params->eht_cap->fixed.phy_cap_info[7] & 1372 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1373 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1374 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1375 } else { 1376 link_conf->eht_su_beamformer = false; 1377 link_conf->eht_su_beamformee = false; 1378 link_conf->eht_mu_beamformer = false; 1379 } 1380 1381 if (sdata->vif.type == NL80211_IFTYPE_AP && 1382 params->mbssid_config.tx_wdev) { 1383 err = ieee80211_set_ap_mbssid_options(sdata, 1384 params->mbssid_config, 1385 link_conf); 1386 if (err) 1387 return err; 1388 } 1389 1390 mutex_lock(&local->mtx); 1391 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1392 IEEE80211_CHANCTX_SHARED); 1393 if (!err) 1394 ieee80211_link_copy_chanctx_to_vlans(link, false); 1395 mutex_unlock(&local->mtx); 1396 if (err) { 1397 link_conf->beacon_int = prev_beacon_int; 1398 return err; 1399 } 1400 1401 /* 1402 * Apply control port protocol, this allows us to 1403 * not encrypt dynamic WEP control frames. 1404 */ 1405 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1406 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1407 sdata->control_port_over_nl80211 = 1408 params->crypto.control_port_over_nl80211; 1409 sdata->control_port_no_preauth = 1410 params->crypto.control_port_no_preauth; 1411 1412 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1413 vlan->control_port_protocol = 1414 params->crypto.control_port_ethertype; 1415 vlan->control_port_no_encrypt = 1416 params->crypto.control_port_no_encrypt; 1417 vlan->control_port_over_nl80211 = 1418 params->crypto.control_port_over_nl80211; 1419 vlan->control_port_no_preauth = 1420 params->crypto.control_port_no_preauth; 1421 } 1422 1423 link_conf->dtim_period = params->dtim_period; 1424 link_conf->enable_beacon = true; 1425 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1426 link_conf->twt_responder = params->twt_responder; 1427 link_conf->he_obss_pd = params->he_obss_pd; 1428 link_conf->he_bss_color = params->beacon.he_bss_color; 1429 sdata->vif.cfg.s1g = params->chandef.chan->band == 1430 NL80211_BAND_S1GHZ; 1431 1432 sdata->vif.cfg.ssid_len = params->ssid_len; 1433 if (params->ssid_len) 1434 memcpy(sdata->vif.cfg.ssid, params->ssid, 1435 params->ssid_len); 1436 link_conf->hidden_ssid = 1437 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1438 1439 memset(&link_conf->p2p_noa_attr, 0, 1440 sizeof(link_conf->p2p_noa_attr)); 1441 link_conf->p2p_noa_attr.oppps_ctwindow = 1442 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1443 if (params->p2p_opp_ps) 1444 link_conf->p2p_noa_attr.oppps_ctwindow |= 1445 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1446 1447 sdata->beacon_rate_set = false; 1448 if (wiphy_ext_feature_isset(local->hw.wiphy, 1449 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1450 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1451 sdata->beacon_rateidx_mask[i] = 1452 params->beacon_rate.control[i].legacy; 1453 if (sdata->beacon_rateidx_mask[i]) 1454 sdata->beacon_rate_set = true; 1455 } 1456 } 1457 1458 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1459 link_conf->beacon_tx_rate = params->beacon_rate; 1460 1461 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1462 &changed); 1463 if (err < 0) 1464 goto error; 1465 1466 if (params->fils_discovery.max_interval) { 1467 err = ieee80211_set_fils_discovery(sdata, 1468 ¶ms->fils_discovery, 1469 link, link_conf); 1470 if (err < 0) 1471 goto error; 1472 changed |= BSS_CHANGED_FILS_DISCOVERY; 1473 } 1474 1475 if (params->unsol_bcast_probe_resp.interval) { 1476 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1477 ¶ms->unsol_bcast_probe_resp, 1478 link, link_conf); 1479 if (err < 0) 1480 goto error; 1481 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1482 } 1483 1484 err = drv_start_ap(sdata->local, sdata, link_conf); 1485 if (err) { 1486 old = sdata_dereference(link->u.ap.beacon, sdata); 1487 1488 if (old) 1489 kfree_rcu(old, rcu_head); 1490 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1491 sdata->u.ap.active = false; 1492 goto error; 1493 } 1494 1495 ieee80211_recalc_dtim(local, sdata); 1496 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1497 ieee80211_link_info_change_notify(sdata, link, changed); 1498 1499 netif_carrier_on(dev); 1500 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1501 netif_carrier_on(vlan->dev); 1502 1503 return 0; 1504 1505 error: 1506 mutex_lock(&local->mtx); 1507 ieee80211_link_release_channel(link); 1508 mutex_unlock(&local->mtx); 1509 1510 return err; 1511 } 1512 ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1513 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1514 struct cfg80211_beacon_data *params) 1515 { 1516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1517 struct ieee80211_link_data *link; 1518 struct beacon_data *old; 1519 int err; 1520 struct ieee80211_bss_conf *link_conf; 1521 u64 changed = 0; 1522 1523 sdata_assert_lock(sdata); 1524 1525 link = sdata_dereference(sdata->link[params->link_id], sdata); 1526 if (!link) 1527 return -ENOLINK; 1528 1529 link_conf = link->conf; 1530 1531 /* don't allow changing the beacon while a countdown is in place - offset 1532 * of channel switch counter may change 1533 */ 1534 if (link_conf->csa_active || link_conf->color_change_active) 1535 return -EBUSY; 1536 1537 old = sdata_dereference(link->u.ap.beacon, sdata); 1538 if (!old) 1539 return -ENOENT; 1540 1541 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL, 1542 &changed); 1543 if (err < 0) 1544 return err; 1545 1546 if (params->he_bss_color_valid && 1547 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1548 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1549 changed |= BSS_CHANGED_HE_BSS_COLOR; 1550 } 1551 1552 ieee80211_link_info_change_notify(sdata, link, changed); 1553 return 0; 1554 } 1555 ieee80211_free_next_beacon(struct ieee80211_link_data * link)1556 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1557 { 1558 if (!link->u.ap.next_beacon) 1559 return; 1560 1561 kfree(link->u.ap.next_beacon->mbssid_ies); 1562 kfree(link->u.ap.next_beacon->rnr_ies); 1563 kfree(link->u.ap.next_beacon); 1564 link->u.ap.next_beacon = NULL; 1565 } 1566 ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1567 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1568 unsigned int link_id) 1569 { 1570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1571 struct ieee80211_sub_if_data *vlan; 1572 struct ieee80211_local *local = sdata->local; 1573 struct beacon_data *old_beacon; 1574 struct probe_resp *old_probe_resp; 1575 struct fils_discovery_data *old_fils_discovery; 1576 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1577 struct cfg80211_chan_def chandef; 1578 struct ieee80211_link_data *link = 1579 sdata_dereference(sdata->link[link_id], sdata); 1580 struct ieee80211_bss_conf *link_conf = link->conf; 1581 1582 sdata_assert_lock(sdata); 1583 1584 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1585 if (!old_beacon) 1586 return -ENOENT; 1587 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1588 sdata); 1589 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1590 sdata); 1591 old_unsol_bcast_probe_resp = 1592 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1593 sdata); 1594 1595 /* abort any running channel switch or color change */ 1596 mutex_lock(&local->mtx); 1597 link_conf->csa_active = false; 1598 link_conf->color_change_active = false; 1599 if (link->csa_block_tx) { 1600 ieee80211_wake_vif_queues(local, sdata, 1601 IEEE80211_QUEUE_STOP_REASON_CSA); 1602 link->csa_block_tx = false; 1603 } 1604 1605 mutex_unlock(&local->mtx); 1606 1607 ieee80211_free_next_beacon(link); 1608 1609 /* turn off carrier for this interface and dependent VLANs */ 1610 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1611 netif_carrier_off(vlan->dev); 1612 netif_carrier_off(dev); 1613 1614 /* remove beacon and probe response */ 1615 sdata->u.ap.active = false; 1616 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1617 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1618 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1619 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1620 kfree_rcu(old_beacon, rcu_head); 1621 if (old_probe_resp) 1622 kfree_rcu(old_probe_resp, rcu_head); 1623 if (old_fils_discovery) 1624 kfree_rcu(old_fils_discovery, rcu_head); 1625 if (old_unsol_bcast_probe_resp) 1626 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1627 1628 kfree(link_conf->ftmr_params); 1629 link_conf->ftmr_params = NULL; 1630 1631 sdata->vif.mbssid_tx_vif = NULL; 1632 link_conf->bssid_index = 0; 1633 link_conf->nontransmitted = false; 1634 link_conf->ema_ap = false; 1635 link_conf->bssid_indicator = 0; 1636 1637 __sta_info_flush(sdata, true); 1638 ieee80211_free_keys(sdata, true); 1639 1640 link_conf->enable_beacon = false; 1641 sdata->beacon_rate_set = false; 1642 sdata->vif.cfg.ssid_len = 0; 1643 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1644 ieee80211_link_info_change_notify(sdata, link, 1645 BSS_CHANGED_BEACON_ENABLED); 1646 1647 if (sdata->wdev.cac_started) { 1648 chandef = link_conf->chandef; 1649 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1650 cfg80211_cac_event(sdata->dev, &chandef, 1651 NL80211_RADAR_CAC_ABORTED, 1652 GFP_KERNEL); 1653 } 1654 1655 drv_stop_ap(sdata->local, sdata, link_conf); 1656 1657 /* free all potentially still buffered bcast frames */ 1658 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1659 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1660 1661 mutex_lock(&local->mtx); 1662 ieee80211_link_copy_chanctx_to_vlans(link, true); 1663 ieee80211_link_release_channel(link); 1664 mutex_unlock(&local->mtx); 1665 1666 return 0; 1667 } 1668 sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1669 static int sta_apply_auth_flags(struct ieee80211_local *local, 1670 struct sta_info *sta, 1671 u32 mask, u32 set) 1672 { 1673 int ret; 1674 1675 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1676 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1677 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1678 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1679 if (ret) 1680 return ret; 1681 } 1682 1683 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1684 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1685 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1686 /* 1687 * When peer becomes associated, init rate control as 1688 * well. Some drivers require rate control initialized 1689 * before drv_sta_state() is called. 1690 */ 1691 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1692 rate_control_rate_init(sta); 1693 1694 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1695 if (ret) 1696 return ret; 1697 } 1698 1699 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1700 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1701 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1702 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1703 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1704 else 1705 ret = 0; 1706 if (ret) 1707 return ret; 1708 } 1709 1710 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1711 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1712 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1713 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1714 if (ret) 1715 return ret; 1716 } 1717 1718 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1719 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1720 test_sta_flag(sta, WLAN_STA_AUTH)) { 1721 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1722 if (ret) 1723 return ret; 1724 } 1725 1726 return 0; 1727 } 1728 sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1729 static void sta_apply_mesh_params(struct ieee80211_local *local, 1730 struct sta_info *sta, 1731 struct station_parameters *params) 1732 { 1733 #ifdef CONFIG_MAC80211_MESH 1734 struct ieee80211_sub_if_data *sdata = sta->sdata; 1735 u64 changed = 0; 1736 1737 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1738 switch (params->plink_state) { 1739 case NL80211_PLINK_ESTAB: 1740 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1741 changed = mesh_plink_inc_estab_count(sdata); 1742 sta->mesh->plink_state = params->plink_state; 1743 sta->mesh->aid = params->peer_aid; 1744 1745 ieee80211_mps_sta_status_update(sta); 1746 changed |= ieee80211_mps_set_sta_local_pm(sta, 1747 sdata->u.mesh.mshcfg.power_mode); 1748 1749 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1750 /* init at low value */ 1751 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1752 1753 break; 1754 case NL80211_PLINK_LISTEN: 1755 case NL80211_PLINK_BLOCKED: 1756 case NL80211_PLINK_OPN_SNT: 1757 case NL80211_PLINK_OPN_RCVD: 1758 case NL80211_PLINK_CNF_RCVD: 1759 case NL80211_PLINK_HOLDING: 1760 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1761 changed = mesh_plink_dec_estab_count(sdata); 1762 sta->mesh->plink_state = params->plink_state; 1763 1764 ieee80211_mps_sta_status_update(sta); 1765 changed |= ieee80211_mps_set_sta_local_pm(sta, 1766 NL80211_MESH_POWER_UNKNOWN); 1767 break; 1768 default: 1769 /* nothing */ 1770 break; 1771 } 1772 } 1773 1774 switch (params->plink_action) { 1775 case NL80211_PLINK_ACTION_NO_ACTION: 1776 /* nothing */ 1777 break; 1778 case NL80211_PLINK_ACTION_OPEN: 1779 changed |= mesh_plink_open(sta); 1780 break; 1781 case NL80211_PLINK_ACTION_BLOCK: 1782 changed |= mesh_plink_block(sta); 1783 break; 1784 } 1785 1786 if (params->local_pm) 1787 changed |= ieee80211_mps_set_sta_local_pm(sta, 1788 params->local_pm); 1789 1790 ieee80211_mbss_info_change_notify(sdata, changed); 1791 #endif 1792 } 1793 sta_link_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,bool new_link,struct link_station_parameters * params)1794 static int sta_link_apply_parameters(struct ieee80211_local *local, 1795 struct sta_info *sta, bool new_link, 1796 struct link_station_parameters *params) 1797 { 1798 struct ieee80211_supported_band *sband; 1799 struct ieee80211_sub_if_data *sdata = sta->sdata; 1800 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1801 struct ieee80211_link_data *link = 1802 sdata_dereference(sdata->link[link_id], sdata); 1803 struct link_sta_info *link_sta = 1804 rcu_dereference_protected(sta->link[link_id], 1805 lockdep_is_held(&local->sta_mtx)); 1806 1807 /* 1808 * If there are no changes, then accept a link that exist, 1809 * unless it's a new link. 1810 */ 1811 if (params->link_id >= 0 && !new_link && 1812 !params->link_mac && !params->txpwr_set && 1813 !params->supported_rates_len && 1814 !params->ht_capa && !params->vht_capa && 1815 !params->he_capa && !params->eht_capa && 1816 !params->opmode_notif_used) 1817 return 0; 1818 1819 if (!link || !link_sta) 1820 return -EINVAL; 1821 1822 sband = ieee80211_get_link_sband(link); 1823 if (!sband) 1824 return -EINVAL; 1825 1826 if (params->link_mac) { 1827 if (new_link) { 1828 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1829 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1830 } else if (!ether_addr_equal(link_sta->addr, 1831 params->link_mac)) { 1832 return -EINVAL; 1833 } 1834 } else if (new_link) { 1835 return -EINVAL; 1836 } 1837 1838 if (params->txpwr_set) { 1839 int ret; 1840 1841 link_sta->pub->txpwr.type = params->txpwr.type; 1842 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1843 link_sta->pub->txpwr.power = params->txpwr.power; 1844 ret = drv_sta_set_txpwr(local, sdata, sta); 1845 if (ret) 1846 return ret; 1847 } 1848 1849 if (params->supported_rates && 1850 params->supported_rates_len) { 1851 ieee80211_parse_bitrates(link->conf->chandef.width, 1852 sband, params->supported_rates, 1853 params->supported_rates_len, 1854 &link_sta->pub->supp_rates[sband->band]); 1855 } 1856 1857 if (params->ht_capa) 1858 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1859 params->ht_capa, link_sta); 1860 1861 /* VHT can override some HT caps such as the A-MSDU max length */ 1862 if (params->vht_capa) 1863 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1864 params->vht_capa, NULL, 1865 link_sta); 1866 1867 if (params->he_capa) 1868 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1869 (void *)params->he_capa, 1870 params->he_capa_len, 1871 (void *)params->he_6ghz_capa, 1872 link_sta); 1873 1874 if (params->he_capa && params->eht_capa) 1875 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1876 (u8 *)params->he_capa, 1877 params->he_capa_len, 1878 params->eht_capa, 1879 params->eht_capa_len, 1880 link_sta); 1881 1882 ieee80211_sta_init_nss(link_sta); 1883 1884 if (params->opmode_notif_used) { 1885 /* returned value is only needed for rc update, but the 1886 * rc isn't initialized here yet, so ignore it 1887 */ 1888 __ieee80211_vht_handle_opmode(sdata, link_sta, 1889 params->opmode_notif, 1890 sband->band); 1891 } 1892 1893 return 0; 1894 } 1895 sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1896 static int sta_apply_parameters(struct ieee80211_local *local, 1897 struct sta_info *sta, 1898 struct station_parameters *params) 1899 { 1900 struct ieee80211_sub_if_data *sdata = sta->sdata; 1901 u32 mask, set; 1902 int ret = 0; 1903 1904 mask = params->sta_flags_mask; 1905 set = params->sta_flags_set; 1906 1907 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1908 /* 1909 * In mesh mode, ASSOCIATED isn't part of the nl80211 1910 * API but must follow AUTHENTICATED for driver state. 1911 */ 1912 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1913 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1914 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1915 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1916 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1917 /* 1918 * TDLS -- everything follows authorized, but 1919 * only becoming authorized is possible, not 1920 * going back 1921 */ 1922 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1923 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1924 BIT(NL80211_STA_FLAG_ASSOCIATED); 1925 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1926 BIT(NL80211_STA_FLAG_ASSOCIATED); 1927 } 1928 } 1929 1930 if (mask & BIT(NL80211_STA_FLAG_WME) && 1931 local->hw.queues >= IEEE80211_NUM_ACS) 1932 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1933 1934 /* auth flags will be set later for TDLS, 1935 * and for unassociated stations that move to associated */ 1936 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1937 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1938 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1939 ret = sta_apply_auth_flags(local, sta, mask, set); 1940 if (ret) 1941 return ret; 1942 } 1943 1944 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1945 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1946 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1947 else 1948 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1949 } 1950 1951 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1952 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1953 if (set & BIT(NL80211_STA_FLAG_MFP)) 1954 set_sta_flag(sta, WLAN_STA_MFP); 1955 else 1956 clear_sta_flag(sta, WLAN_STA_MFP); 1957 } 1958 1959 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1960 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1961 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1962 else 1963 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1964 } 1965 1966 /* mark TDLS channel switch support, if the AP allows it */ 1967 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1968 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1969 params->ext_capab_len >= 4 && 1970 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1971 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1972 1973 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1974 !sdata->u.mgd.tdls_wider_bw_prohibited && 1975 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1976 params->ext_capab_len >= 8 && 1977 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1978 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1979 1980 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1981 sta->sta.uapsd_queues = params->uapsd_queues; 1982 sta->sta.max_sp = params->max_sp; 1983 } 1984 1985 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1986 params->ext_capab_len); 1987 1988 /* 1989 * cfg80211 validates this (1-2007) and allows setting the AID 1990 * only when creating a new station entry 1991 */ 1992 if (params->aid) 1993 sta->sta.aid = params->aid; 1994 1995 /* 1996 * Some of the following updates would be racy if called on an 1997 * existing station, via ieee80211_change_station(). However, 1998 * all such changes are rejected by cfg80211 except for updates 1999 * changing the supported rates on an existing but not yet used 2000 * TDLS peer. 2001 */ 2002 2003 if (params->listen_interval >= 0) 2004 sta->listen_interval = params->listen_interval; 2005 2006 ret = sta_link_apply_parameters(local, sta, false, 2007 ¶ms->link_sta_params); 2008 if (ret) 2009 return ret; 2010 2011 if (params->support_p2p_ps >= 0) 2012 sta->sta.support_p2p_ps = params->support_p2p_ps; 2013 2014 if (ieee80211_vif_is_mesh(&sdata->vif)) 2015 sta_apply_mesh_params(local, sta, params); 2016 2017 if (params->airtime_weight) 2018 sta->airtime_weight = params->airtime_weight; 2019 2020 /* set the STA state after all sta info from usermode has been set */ 2021 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2022 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2023 ret = sta_apply_auth_flags(local, sta, mask, set); 2024 if (ret) 2025 return ret; 2026 } 2027 2028 /* Mark the STA as MLO if MLD MAC address is available */ 2029 if (params->link_sta_params.mld_mac) 2030 sta->sta.mlo = true; 2031 2032 return 0; 2033 } 2034 ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2035 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2036 const u8 *mac, 2037 struct station_parameters *params) 2038 { 2039 struct ieee80211_local *local = wiphy_priv(wiphy); 2040 struct sta_info *sta; 2041 struct ieee80211_sub_if_data *sdata; 2042 int err; 2043 2044 if (params->vlan) { 2045 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2046 2047 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2048 sdata->vif.type != NL80211_IFTYPE_AP) 2049 return -EINVAL; 2050 } else 2051 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2052 2053 if (ether_addr_equal(mac, sdata->vif.addr)) 2054 return -EINVAL; 2055 2056 if (!is_valid_ether_addr(mac)) 2057 return -EINVAL; 2058 2059 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2060 sdata->vif.type == NL80211_IFTYPE_STATION && 2061 !sdata->u.mgd.associated) 2062 return -EINVAL; 2063 2064 /* 2065 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2066 * but we need to have a link_mac in that case as well, so use the 2067 * STA's MAC address in that case. 2068 */ 2069 if (params->link_sta_params.link_id >= 0) 2070 sta = sta_info_alloc_with_link(sdata, mac, 2071 params->link_sta_params.link_id, 2072 params->link_sta_params.link_mac ?: mac, 2073 GFP_KERNEL); 2074 else 2075 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2076 2077 if (!sta) 2078 return -ENOMEM; 2079 2080 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2081 sta->sta.tdls = true; 2082 2083 /* Though the mutex is not needed here (since the station is not 2084 * visible yet), sta_apply_parameters (and inner functions) require 2085 * the mutex due to other paths. 2086 */ 2087 mutex_lock(&local->sta_mtx); 2088 err = sta_apply_parameters(local, sta, params); 2089 mutex_unlock(&local->sta_mtx); 2090 if (err) { 2091 sta_info_free(local, sta); 2092 return err; 2093 } 2094 2095 /* 2096 * for TDLS and for unassociated station, rate control should be 2097 * initialized only when rates are known and station is marked 2098 * authorized/associated 2099 */ 2100 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2101 test_sta_flag(sta, WLAN_STA_ASSOC)) 2102 rate_control_rate_init(sta); 2103 2104 return sta_info_insert(sta); 2105 } 2106 ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2107 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2108 struct station_del_parameters *params) 2109 { 2110 struct ieee80211_sub_if_data *sdata; 2111 2112 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2113 2114 if (params->mac) 2115 return sta_info_destroy_addr_bss(sdata, params->mac); 2116 2117 sta_info_flush(sdata); 2118 return 0; 2119 } 2120 ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2121 static int ieee80211_change_station(struct wiphy *wiphy, 2122 struct net_device *dev, const u8 *mac, 2123 struct station_parameters *params) 2124 { 2125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2126 struct ieee80211_local *local = wiphy_priv(wiphy); 2127 struct sta_info *sta; 2128 struct ieee80211_sub_if_data *vlansdata; 2129 enum cfg80211_station_type statype; 2130 int err; 2131 2132 mutex_lock(&local->sta_mtx); 2133 2134 sta = sta_info_get_bss(sdata, mac); 2135 if (!sta) { 2136 err = -ENOENT; 2137 goto out_err; 2138 } 2139 2140 switch (sdata->vif.type) { 2141 case NL80211_IFTYPE_MESH_POINT: 2142 if (sdata->u.mesh.user_mpm) 2143 statype = CFG80211_STA_MESH_PEER_USER; 2144 else 2145 statype = CFG80211_STA_MESH_PEER_KERNEL; 2146 break; 2147 case NL80211_IFTYPE_ADHOC: 2148 statype = CFG80211_STA_IBSS; 2149 break; 2150 case NL80211_IFTYPE_STATION: 2151 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2152 statype = CFG80211_STA_AP_STA; 2153 break; 2154 } 2155 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2156 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2157 else 2158 statype = CFG80211_STA_TDLS_PEER_SETUP; 2159 break; 2160 case NL80211_IFTYPE_AP: 2161 case NL80211_IFTYPE_AP_VLAN: 2162 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2163 statype = CFG80211_STA_AP_CLIENT; 2164 else 2165 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2166 break; 2167 default: 2168 err = -EOPNOTSUPP; 2169 goto out_err; 2170 } 2171 2172 err = cfg80211_check_station_change(wiphy, params, statype); 2173 if (err) 2174 goto out_err; 2175 2176 if (params->vlan && params->vlan != sta->sdata->dev) { 2177 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2178 2179 if (params->vlan->ieee80211_ptr->use_4addr) { 2180 if (vlansdata->u.vlan.sta) { 2181 err = -EBUSY; 2182 goto out_err; 2183 } 2184 2185 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2186 __ieee80211_check_fast_rx_iface(vlansdata); 2187 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2188 } 2189 2190 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2191 sta->sdata->u.vlan.sta) 2192 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2193 2194 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2195 ieee80211_vif_dec_num_mcast(sta->sdata); 2196 2197 sta->sdata = vlansdata; 2198 ieee80211_check_fast_rx(sta); 2199 ieee80211_check_fast_xmit(sta); 2200 2201 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2202 ieee80211_vif_inc_num_mcast(sta->sdata); 2203 cfg80211_send_layer2_update(sta->sdata->dev, 2204 sta->sta.addr); 2205 } 2206 } 2207 2208 /* we use sta_info_get_bss() so this might be different */ 2209 if (sdata != sta->sdata) { 2210 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2211 err = sta_apply_parameters(local, sta, params); 2212 mutex_unlock(&sta->sdata->wdev.mtx); 2213 } else { 2214 err = sta_apply_parameters(local, sta, params); 2215 } 2216 if (err) 2217 goto out_err; 2218 2219 mutex_unlock(&local->sta_mtx); 2220 2221 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2222 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2223 ieee80211_recalc_ps(local); 2224 ieee80211_recalc_ps_vif(sdata); 2225 } 2226 2227 return 0; 2228 out_err: 2229 mutex_unlock(&local->sta_mtx); 2230 return err; 2231 } 2232 2233 #ifdef CONFIG_MAC80211_MESH ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2234 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2235 const u8 *dst, const u8 *next_hop) 2236 { 2237 struct ieee80211_sub_if_data *sdata; 2238 struct mesh_path *mpath; 2239 struct sta_info *sta; 2240 2241 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2242 2243 rcu_read_lock(); 2244 sta = sta_info_get(sdata, next_hop); 2245 if (!sta) { 2246 rcu_read_unlock(); 2247 return -ENOENT; 2248 } 2249 2250 mpath = mesh_path_add(sdata, dst); 2251 if (IS_ERR(mpath)) { 2252 rcu_read_unlock(); 2253 return PTR_ERR(mpath); 2254 } 2255 2256 mesh_path_fix_nexthop(mpath, sta); 2257 2258 rcu_read_unlock(); 2259 return 0; 2260 } 2261 ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2262 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2263 const u8 *dst) 2264 { 2265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2266 2267 if (dst) 2268 return mesh_path_del(sdata, dst); 2269 2270 mesh_path_flush_by_iface(sdata); 2271 return 0; 2272 } 2273 ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2274 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2275 const u8 *dst, const u8 *next_hop) 2276 { 2277 struct ieee80211_sub_if_data *sdata; 2278 struct mesh_path *mpath; 2279 struct sta_info *sta; 2280 2281 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2282 2283 rcu_read_lock(); 2284 2285 sta = sta_info_get(sdata, next_hop); 2286 if (!sta) { 2287 rcu_read_unlock(); 2288 return -ENOENT; 2289 } 2290 2291 mpath = mesh_path_lookup(sdata, dst); 2292 if (!mpath) { 2293 rcu_read_unlock(); 2294 return -ENOENT; 2295 } 2296 2297 mesh_path_fix_nexthop(mpath, sta); 2298 2299 rcu_read_unlock(); 2300 return 0; 2301 } 2302 mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2303 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2304 struct mpath_info *pinfo) 2305 { 2306 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2307 2308 if (next_hop_sta) 2309 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2310 else 2311 eth_zero_addr(next_hop); 2312 2313 memset(pinfo, 0, sizeof(*pinfo)); 2314 2315 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2316 2317 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2318 MPATH_INFO_SN | 2319 MPATH_INFO_METRIC | 2320 MPATH_INFO_EXPTIME | 2321 MPATH_INFO_DISCOVERY_TIMEOUT | 2322 MPATH_INFO_DISCOVERY_RETRIES | 2323 MPATH_INFO_FLAGS | 2324 MPATH_INFO_HOP_COUNT | 2325 MPATH_INFO_PATH_CHANGE; 2326 2327 pinfo->frame_qlen = mpath->frame_queue.qlen; 2328 pinfo->sn = mpath->sn; 2329 pinfo->metric = mpath->metric; 2330 if (time_before(jiffies, mpath->exp_time)) 2331 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2332 pinfo->discovery_timeout = 2333 jiffies_to_msecs(mpath->discovery_timeout); 2334 pinfo->discovery_retries = mpath->discovery_retries; 2335 if (mpath->flags & MESH_PATH_ACTIVE) 2336 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2337 if (mpath->flags & MESH_PATH_RESOLVING) 2338 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2339 if (mpath->flags & MESH_PATH_SN_VALID) 2340 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2341 if (mpath->flags & MESH_PATH_FIXED) 2342 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2343 if (mpath->flags & MESH_PATH_RESOLVED) 2344 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2345 pinfo->hop_count = mpath->hop_count; 2346 pinfo->path_change_count = mpath->path_change_count; 2347 } 2348 ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2349 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2350 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2351 2352 { 2353 struct ieee80211_sub_if_data *sdata; 2354 struct mesh_path *mpath; 2355 2356 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2357 2358 rcu_read_lock(); 2359 mpath = mesh_path_lookup(sdata, dst); 2360 if (!mpath) { 2361 rcu_read_unlock(); 2362 return -ENOENT; 2363 } 2364 memcpy(dst, mpath->dst, ETH_ALEN); 2365 mpath_set_pinfo(mpath, next_hop, pinfo); 2366 rcu_read_unlock(); 2367 return 0; 2368 } 2369 ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2370 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2371 int idx, u8 *dst, u8 *next_hop, 2372 struct mpath_info *pinfo) 2373 { 2374 struct ieee80211_sub_if_data *sdata; 2375 struct mesh_path *mpath; 2376 2377 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2378 2379 rcu_read_lock(); 2380 mpath = mesh_path_lookup_by_idx(sdata, idx); 2381 if (!mpath) { 2382 rcu_read_unlock(); 2383 return -ENOENT; 2384 } 2385 memcpy(dst, mpath->dst, ETH_ALEN); 2386 mpath_set_pinfo(mpath, next_hop, pinfo); 2387 rcu_read_unlock(); 2388 return 0; 2389 } 2390 mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2391 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2392 struct mpath_info *pinfo) 2393 { 2394 memset(pinfo, 0, sizeof(*pinfo)); 2395 memcpy(mpp, mpath->mpp, ETH_ALEN); 2396 2397 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2398 } 2399 ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2400 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2401 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2402 2403 { 2404 struct ieee80211_sub_if_data *sdata; 2405 struct mesh_path *mpath; 2406 2407 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2408 2409 rcu_read_lock(); 2410 mpath = mpp_path_lookup(sdata, dst); 2411 if (!mpath) { 2412 rcu_read_unlock(); 2413 return -ENOENT; 2414 } 2415 memcpy(dst, mpath->dst, ETH_ALEN); 2416 mpp_set_pinfo(mpath, mpp, pinfo); 2417 rcu_read_unlock(); 2418 return 0; 2419 } 2420 ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2421 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2422 int idx, u8 *dst, u8 *mpp, 2423 struct mpath_info *pinfo) 2424 { 2425 struct ieee80211_sub_if_data *sdata; 2426 struct mesh_path *mpath; 2427 2428 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2429 2430 rcu_read_lock(); 2431 mpath = mpp_path_lookup_by_idx(sdata, idx); 2432 if (!mpath) { 2433 rcu_read_unlock(); 2434 return -ENOENT; 2435 } 2436 memcpy(dst, mpath->dst, ETH_ALEN); 2437 mpp_set_pinfo(mpath, mpp, pinfo); 2438 rcu_read_unlock(); 2439 return 0; 2440 } 2441 ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2442 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2443 struct net_device *dev, 2444 struct mesh_config *conf) 2445 { 2446 struct ieee80211_sub_if_data *sdata; 2447 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2448 2449 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2450 return 0; 2451 } 2452 _chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2453 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2454 { 2455 return (mask >> (parm-1)) & 0x1; 2456 } 2457 copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2458 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2459 const struct mesh_setup *setup) 2460 { 2461 u8 *new_ie; 2462 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2463 struct ieee80211_sub_if_data, u.mesh); 2464 int i; 2465 2466 /* allocate information elements */ 2467 new_ie = NULL; 2468 2469 if (setup->ie_len) { 2470 new_ie = kmemdup(setup->ie, setup->ie_len, 2471 GFP_KERNEL); 2472 if (!new_ie) 2473 return -ENOMEM; 2474 } 2475 ifmsh->ie_len = setup->ie_len; 2476 ifmsh->ie = new_ie; 2477 2478 /* now copy the rest of the setup parameters */ 2479 ifmsh->mesh_id_len = setup->mesh_id_len; 2480 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2481 ifmsh->mesh_sp_id = setup->sync_method; 2482 ifmsh->mesh_pp_id = setup->path_sel_proto; 2483 ifmsh->mesh_pm_id = setup->path_metric; 2484 ifmsh->user_mpm = setup->user_mpm; 2485 ifmsh->mesh_auth_id = setup->auth_id; 2486 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2487 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2488 if (setup->is_authenticated) 2489 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2490 if (setup->is_secure) 2491 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2492 2493 /* mcast rate setting in Mesh Node */ 2494 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2495 sizeof(setup->mcast_rate)); 2496 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2497 2498 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2499 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2500 2501 sdata->beacon_rate_set = false; 2502 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2503 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2504 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2505 sdata->beacon_rateidx_mask[i] = 2506 setup->beacon_rate.control[i].legacy; 2507 if (sdata->beacon_rateidx_mask[i]) 2508 sdata->beacon_rate_set = true; 2509 } 2510 } 2511 2512 return 0; 2513 } 2514 ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2515 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2516 struct net_device *dev, u32 mask, 2517 const struct mesh_config *nconf) 2518 { 2519 struct mesh_config *conf; 2520 struct ieee80211_sub_if_data *sdata; 2521 struct ieee80211_if_mesh *ifmsh; 2522 2523 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2524 ifmsh = &sdata->u.mesh; 2525 2526 /* Set the config options which we are interested in setting */ 2527 conf = &(sdata->u.mesh.mshcfg); 2528 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2529 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2530 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2531 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2533 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2534 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2535 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2536 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2537 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2538 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2539 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2540 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2541 conf->element_ttl = nconf->element_ttl; 2542 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2543 if (ifmsh->user_mpm) 2544 return -EBUSY; 2545 conf->auto_open_plinks = nconf->auto_open_plinks; 2546 } 2547 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2548 conf->dot11MeshNbrOffsetMaxNeighbor = 2549 nconf->dot11MeshNbrOffsetMaxNeighbor; 2550 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2551 conf->dot11MeshHWMPmaxPREQretries = 2552 nconf->dot11MeshHWMPmaxPREQretries; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2554 conf->path_refresh_time = nconf->path_refresh_time; 2555 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2556 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2557 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2558 conf->dot11MeshHWMPactivePathTimeout = 2559 nconf->dot11MeshHWMPactivePathTimeout; 2560 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2561 conf->dot11MeshHWMPpreqMinInterval = 2562 nconf->dot11MeshHWMPpreqMinInterval; 2563 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2564 conf->dot11MeshHWMPperrMinInterval = 2565 nconf->dot11MeshHWMPperrMinInterval; 2566 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2567 mask)) 2568 conf->dot11MeshHWMPnetDiameterTraversalTime = 2569 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2570 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2571 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2572 ieee80211_mesh_root_setup(ifmsh); 2573 } 2574 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2575 /* our current gate announcement implementation rides on root 2576 * announcements, so require this ifmsh to also be a root node 2577 * */ 2578 if (nconf->dot11MeshGateAnnouncementProtocol && 2579 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2580 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2581 ieee80211_mesh_root_setup(ifmsh); 2582 } 2583 conf->dot11MeshGateAnnouncementProtocol = 2584 nconf->dot11MeshGateAnnouncementProtocol; 2585 } 2586 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2587 conf->dot11MeshHWMPRannInterval = 2588 nconf->dot11MeshHWMPRannInterval; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2590 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2591 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2592 /* our RSSI threshold implementation is supported only for 2593 * devices that report signal in dBm. 2594 */ 2595 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2596 return -ENOTSUPP; 2597 conf->rssi_threshold = nconf->rssi_threshold; 2598 } 2599 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2600 conf->ht_opmode = nconf->ht_opmode; 2601 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2602 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2603 BSS_CHANGED_HT); 2604 } 2605 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2606 conf->dot11MeshHWMPactivePathToRootTimeout = 2607 nconf->dot11MeshHWMPactivePathToRootTimeout; 2608 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2609 conf->dot11MeshHWMProotInterval = 2610 nconf->dot11MeshHWMProotInterval; 2611 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2612 conf->dot11MeshHWMPconfirmationInterval = 2613 nconf->dot11MeshHWMPconfirmationInterval; 2614 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2615 conf->power_mode = nconf->power_mode; 2616 ieee80211_mps_local_status_update(sdata); 2617 } 2618 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2619 conf->dot11MeshAwakeWindowDuration = 2620 nconf->dot11MeshAwakeWindowDuration; 2621 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2622 conf->plink_timeout = nconf->plink_timeout; 2623 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2624 conf->dot11MeshConnectedToMeshGate = 2625 nconf->dot11MeshConnectedToMeshGate; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2627 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2628 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2629 conf->dot11MeshConnectedToAuthServer = 2630 nconf->dot11MeshConnectedToAuthServer; 2631 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2632 return 0; 2633 } 2634 ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2635 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2636 const struct mesh_config *conf, 2637 const struct mesh_setup *setup) 2638 { 2639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2640 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2641 int err; 2642 2643 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2644 err = copy_mesh_setup(ifmsh, setup); 2645 if (err) 2646 return err; 2647 2648 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2649 2650 /* can mesh use other SMPS modes? */ 2651 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2652 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2653 2654 mutex_lock(&sdata->local->mtx); 2655 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2656 IEEE80211_CHANCTX_SHARED); 2657 mutex_unlock(&sdata->local->mtx); 2658 if (err) 2659 return err; 2660 2661 return ieee80211_start_mesh(sdata); 2662 } 2663 ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2664 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2665 { 2666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2667 2668 ieee80211_stop_mesh(sdata); 2669 mutex_lock(&sdata->local->mtx); 2670 ieee80211_link_release_channel(&sdata->deflink); 2671 kfree(sdata->u.mesh.ie); 2672 mutex_unlock(&sdata->local->mtx); 2673 2674 return 0; 2675 } 2676 #endif 2677 ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2678 static int ieee80211_change_bss(struct wiphy *wiphy, 2679 struct net_device *dev, 2680 struct bss_parameters *params) 2681 { 2682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2683 struct ieee80211_link_data *link; 2684 struct ieee80211_supported_band *sband; 2685 u64 changed = 0; 2686 2687 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2688 if (IS_ERR(link)) 2689 return PTR_ERR(link); 2690 2691 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2692 return -ENOENT; 2693 2694 sband = ieee80211_get_link_sband(link); 2695 if (!sband) 2696 return -EINVAL; 2697 2698 if (params->basic_rates) { 2699 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2700 wiphy->bands[sband->band], 2701 params->basic_rates, 2702 params->basic_rates_len, 2703 &link->conf->basic_rates)) 2704 return -EINVAL; 2705 changed |= BSS_CHANGED_BASIC_RATES; 2706 ieee80211_check_rate_mask(link); 2707 } 2708 2709 if (params->use_cts_prot >= 0) { 2710 link->conf->use_cts_prot = params->use_cts_prot; 2711 changed |= BSS_CHANGED_ERP_CTS_PROT; 2712 } 2713 if (params->use_short_preamble >= 0) { 2714 link->conf->use_short_preamble = params->use_short_preamble; 2715 changed |= BSS_CHANGED_ERP_PREAMBLE; 2716 } 2717 2718 if (!link->conf->use_short_slot && 2719 (sband->band == NL80211_BAND_5GHZ || 2720 sband->band == NL80211_BAND_6GHZ)) { 2721 link->conf->use_short_slot = true; 2722 changed |= BSS_CHANGED_ERP_SLOT; 2723 } 2724 2725 if (params->use_short_slot_time >= 0) { 2726 link->conf->use_short_slot = params->use_short_slot_time; 2727 changed |= BSS_CHANGED_ERP_SLOT; 2728 } 2729 2730 if (params->ap_isolate >= 0) { 2731 if (params->ap_isolate) 2732 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2733 else 2734 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2735 ieee80211_check_fast_rx_iface(sdata); 2736 } 2737 2738 if (params->ht_opmode >= 0) { 2739 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2740 changed |= BSS_CHANGED_HT; 2741 } 2742 2743 if (params->p2p_ctwindow >= 0) { 2744 link->conf->p2p_noa_attr.oppps_ctwindow &= 2745 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2746 link->conf->p2p_noa_attr.oppps_ctwindow |= 2747 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2748 changed |= BSS_CHANGED_P2P_PS; 2749 } 2750 2751 if (params->p2p_opp_ps > 0) { 2752 link->conf->p2p_noa_attr.oppps_ctwindow |= 2753 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2754 changed |= BSS_CHANGED_P2P_PS; 2755 } else if (params->p2p_opp_ps == 0) { 2756 link->conf->p2p_noa_attr.oppps_ctwindow &= 2757 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2758 changed |= BSS_CHANGED_P2P_PS; 2759 } 2760 2761 ieee80211_link_info_change_notify(sdata, link, changed); 2762 2763 return 0; 2764 } 2765 ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2766 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2767 struct net_device *dev, 2768 struct ieee80211_txq_params *params) 2769 { 2770 struct ieee80211_local *local = wiphy_priv(wiphy); 2771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2772 struct ieee80211_link_data *link = 2773 ieee80211_link_or_deflink(sdata, params->link_id, true); 2774 struct ieee80211_tx_queue_params p; 2775 2776 if (!local->ops->conf_tx) 2777 return -EOPNOTSUPP; 2778 2779 if (local->hw.queues < IEEE80211_NUM_ACS) 2780 return -EOPNOTSUPP; 2781 2782 if (IS_ERR(link)) 2783 return PTR_ERR(link); 2784 2785 memset(&p, 0, sizeof(p)); 2786 p.aifs = params->aifs; 2787 p.cw_max = params->cwmax; 2788 p.cw_min = params->cwmin; 2789 p.txop = params->txop; 2790 2791 /* 2792 * Setting tx queue params disables u-apsd because it's only 2793 * called in master mode. 2794 */ 2795 p.uapsd = false; 2796 2797 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2798 2799 link->tx_conf[params->ac] = p; 2800 if (drv_conf_tx(local, link, params->ac, &p)) { 2801 wiphy_debug(local->hw.wiphy, 2802 "failed to set TX queue parameters for AC %d\n", 2803 params->ac); 2804 return -EINVAL; 2805 } 2806 2807 ieee80211_link_info_change_notify(sdata, link, 2808 BSS_CHANGED_QOS); 2809 2810 return 0; 2811 } 2812 2813 #ifdef CONFIG_PM ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2814 static int ieee80211_suspend(struct wiphy *wiphy, 2815 struct cfg80211_wowlan *wowlan) 2816 { 2817 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2818 } 2819 ieee80211_resume(struct wiphy * wiphy)2820 static int ieee80211_resume(struct wiphy *wiphy) 2821 { 2822 return __ieee80211_resume(wiphy_priv(wiphy)); 2823 } 2824 #else 2825 #define ieee80211_suspend NULL 2826 #define ieee80211_resume NULL 2827 #endif 2828 ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2829 static int ieee80211_scan(struct wiphy *wiphy, 2830 struct cfg80211_scan_request *req) 2831 { 2832 struct ieee80211_sub_if_data *sdata; 2833 2834 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2835 2836 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2837 case NL80211_IFTYPE_STATION: 2838 case NL80211_IFTYPE_ADHOC: 2839 case NL80211_IFTYPE_MESH_POINT: 2840 case NL80211_IFTYPE_P2P_CLIENT: 2841 case NL80211_IFTYPE_P2P_DEVICE: 2842 break; 2843 case NL80211_IFTYPE_P2P_GO: 2844 if (sdata->local->ops->hw_scan) 2845 break; 2846 /* 2847 * FIXME: implement NoA while scanning in software, 2848 * for now fall through to allow scanning only when 2849 * beaconing hasn't been configured yet 2850 */ 2851 fallthrough; 2852 case NL80211_IFTYPE_AP: 2853 /* 2854 * If the scan has been forced (and the driver supports 2855 * forcing), don't care about being beaconing already. 2856 * This will create problems to the attached stations (e.g. all 2857 * the frames sent while scanning on other channel will be 2858 * lost) 2859 */ 2860 if (sdata->deflink.u.ap.beacon && 2861 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2862 !(req->flags & NL80211_SCAN_FLAG_AP))) 2863 return -EOPNOTSUPP; 2864 break; 2865 case NL80211_IFTYPE_NAN: 2866 default: 2867 return -EOPNOTSUPP; 2868 } 2869 2870 return ieee80211_request_scan(sdata, req); 2871 } 2872 ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2873 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2874 { 2875 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2876 } 2877 2878 static int ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2879 ieee80211_sched_scan_start(struct wiphy *wiphy, 2880 struct net_device *dev, 2881 struct cfg80211_sched_scan_request *req) 2882 { 2883 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2884 2885 if (!sdata->local->ops->sched_scan_start) 2886 return -EOPNOTSUPP; 2887 2888 return ieee80211_request_sched_scan_start(sdata, req); 2889 } 2890 2891 static int ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2892 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2893 u64 reqid) 2894 { 2895 struct ieee80211_local *local = wiphy_priv(wiphy); 2896 2897 if (!local->ops->sched_scan_stop) 2898 return -EOPNOTSUPP; 2899 2900 return ieee80211_request_sched_scan_stop(local); 2901 } 2902 ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2903 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2904 struct cfg80211_auth_request *req) 2905 { 2906 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2907 } 2908 ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2909 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2910 struct cfg80211_assoc_request *req) 2911 { 2912 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2913 } 2914 ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2915 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2916 struct cfg80211_deauth_request *req) 2917 { 2918 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2919 } 2920 ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2921 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2922 struct cfg80211_disassoc_request *req) 2923 { 2924 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2925 } 2926 ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2927 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2928 struct cfg80211_ibss_params *params) 2929 { 2930 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2931 } 2932 ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2933 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2934 { 2935 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2936 } 2937 ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2938 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2939 struct ocb_setup *setup) 2940 { 2941 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2942 } 2943 ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2944 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2945 { 2946 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2947 } 2948 ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2949 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2950 int rate[NUM_NL80211_BANDS]) 2951 { 2952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2953 2954 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2955 sizeof(int) * NUM_NL80211_BANDS); 2956 2957 if (ieee80211_sdata_running(sdata)) 2958 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2959 BSS_CHANGED_MCAST_RATE); 2960 2961 return 0; 2962 } 2963 ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2964 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2965 { 2966 struct ieee80211_local *local = wiphy_priv(wiphy); 2967 int err; 2968 2969 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2970 ieee80211_check_fast_xmit_all(local); 2971 2972 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2973 2974 if (err) { 2975 ieee80211_check_fast_xmit_all(local); 2976 return err; 2977 } 2978 } 2979 2980 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2981 (changed & WIPHY_PARAM_DYN_ACK)) { 2982 s16 coverage_class; 2983 2984 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2985 wiphy->coverage_class : -1; 2986 err = drv_set_coverage_class(local, coverage_class); 2987 2988 if (err) 2989 return err; 2990 } 2991 2992 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2993 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2994 2995 if (err) 2996 return err; 2997 } 2998 2999 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3000 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3001 return -EINVAL; 3002 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3003 } 3004 if (changed & WIPHY_PARAM_RETRY_LONG) { 3005 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3006 return -EINVAL; 3007 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3008 } 3009 if (changed & 3010 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3011 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3012 3013 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3014 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3015 WIPHY_PARAM_TXQ_QUANTUM)) 3016 ieee80211_txq_set_params(local); 3017 3018 return 0; 3019 } 3020 ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3021 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3022 struct wireless_dev *wdev, 3023 enum nl80211_tx_power_setting type, int mbm) 3024 { 3025 struct ieee80211_local *local = wiphy_priv(wiphy); 3026 struct ieee80211_sub_if_data *sdata; 3027 enum nl80211_tx_power_setting txp_type = type; 3028 bool update_txp_type = false; 3029 bool has_monitor = false; 3030 3031 if (wdev) { 3032 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3033 3034 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3035 sdata = wiphy_dereference(local->hw.wiphy, 3036 local->monitor_sdata); 3037 if (!sdata) 3038 return -EOPNOTSUPP; 3039 } 3040 3041 switch (type) { 3042 case NL80211_TX_POWER_AUTOMATIC: 3043 sdata->deflink.user_power_level = 3044 IEEE80211_UNSET_POWER_LEVEL; 3045 txp_type = NL80211_TX_POWER_LIMITED; 3046 break; 3047 case NL80211_TX_POWER_LIMITED: 3048 case NL80211_TX_POWER_FIXED: 3049 if (mbm < 0 || (mbm % 100)) 3050 return -EOPNOTSUPP; 3051 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3052 break; 3053 } 3054 3055 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3056 update_txp_type = true; 3057 sdata->vif.bss_conf.txpower_type = txp_type; 3058 } 3059 3060 ieee80211_recalc_txpower(sdata, update_txp_type); 3061 3062 return 0; 3063 } 3064 3065 switch (type) { 3066 case NL80211_TX_POWER_AUTOMATIC: 3067 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3068 txp_type = NL80211_TX_POWER_LIMITED; 3069 break; 3070 case NL80211_TX_POWER_LIMITED: 3071 case NL80211_TX_POWER_FIXED: 3072 if (mbm < 0 || (mbm % 100)) 3073 return -EOPNOTSUPP; 3074 local->user_power_level = MBM_TO_DBM(mbm); 3075 break; 3076 } 3077 3078 mutex_lock(&local->iflist_mtx); 3079 list_for_each_entry(sdata, &local->interfaces, list) { 3080 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3081 has_monitor = true; 3082 continue; 3083 } 3084 sdata->deflink.user_power_level = local->user_power_level; 3085 if (txp_type != sdata->vif.bss_conf.txpower_type) 3086 update_txp_type = true; 3087 sdata->vif.bss_conf.txpower_type = txp_type; 3088 } 3089 list_for_each_entry(sdata, &local->interfaces, list) { 3090 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3091 continue; 3092 ieee80211_recalc_txpower(sdata, update_txp_type); 3093 } 3094 mutex_unlock(&local->iflist_mtx); 3095 3096 if (has_monitor) { 3097 sdata = wiphy_dereference(local->hw.wiphy, 3098 local->monitor_sdata); 3099 if (sdata) { 3100 sdata->deflink.user_power_level = local->user_power_level; 3101 if (txp_type != sdata->vif.bss_conf.txpower_type) 3102 update_txp_type = true; 3103 sdata->vif.bss_conf.txpower_type = txp_type; 3104 3105 ieee80211_recalc_txpower(sdata, update_txp_type); 3106 } 3107 } 3108 3109 return 0; 3110 } 3111 ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)3112 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3113 struct wireless_dev *wdev, 3114 int *dbm) 3115 { 3116 struct ieee80211_local *local = wiphy_priv(wiphy); 3117 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3118 3119 if (local->ops->get_txpower && 3120 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3121 return drv_get_txpower(local, sdata, dbm); 3122 3123 if (!local->use_chanctx) 3124 *dbm = local->hw.conf.power_level; 3125 else 3126 *dbm = sdata->vif.bss_conf.txpower; 3127 3128 /* INT_MIN indicates no power level was set yet */ 3129 if (*dbm == INT_MIN) 3130 return -EINVAL; 3131 3132 return 0; 3133 } 3134 ieee80211_rfkill_poll(struct wiphy * wiphy)3135 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3136 { 3137 struct ieee80211_local *local = wiphy_priv(wiphy); 3138 3139 drv_rfkill_poll(local); 3140 } 3141 3142 #ifdef CONFIG_NL80211_TESTMODE ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3143 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3144 struct wireless_dev *wdev, 3145 void *data, int len) 3146 { 3147 struct ieee80211_local *local = wiphy_priv(wiphy); 3148 struct ieee80211_vif *vif = NULL; 3149 3150 if (!local->ops->testmode_cmd) 3151 return -EOPNOTSUPP; 3152 3153 if (wdev) { 3154 struct ieee80211_sub_if_data *sdata; 3155 3156 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3157 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3158 vif = &sdata->vif; 3159 } 3160 3161 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3162 } 3163 ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3164 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3165 struct sk_buff *skb, 3166 struct netlink_callback *cb, 3167 void *data, int len) 3168 { 3169 struct ieee80211_local *local = wiphy_priv(wiphy); 3170 3171 if (!local->ops->testmode_dump) 3172 return -EOPNOTSUPP; 3173 3174 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3175 } 3176 #endif 3177 __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3178 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3179 struct ieee80211_link_data *link, 3180 enum ieee80211_smps_mode smps_mode) 3181 { 3182 const u8 *ap; 3183 enum ieee80211_smps_mode old_req; 3184 int err; 3185 struct sta_info *sta; 3186 bool tdls_peer_found = false; 3187 3188 lockdep_assert_held(&sdata->wdev.mtx); 3189 3190 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3191 return -EINVAL; 3192 3193 old_req = link->u.mgd.req_smps; 3194 link->u.mgd.req_smps = smps_mode; 3195 3196 if (old_req == smps_mode && 3197 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3198 return 0; 3199 3200 /* 3201 * If not associated, or current association is not an HT 3202 * association, there's no need to do anything, just store 3203 * the new value until we associate. 3204 */ 3205 if (!sdata->u.mgd.associated || 3206 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3207 return 0; 3208 3209 ap = link->u.mgd.bssid; 3210 3211 rcu_read_lock(); 3212 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3213 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3214 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3215 continue; 3216 3217 tdls_peer_found = true; 3218 break; 3219 } 3220 rcu_read_unlock(); 3221 3222 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3223 if (tdls_peer_found || !sdata->u.mgd.powersave) 3224 smps_mode = IEEE80211_SMPS_OFF; 3225 else 3226 smps_mode = IEEE80211_SMPS_DYNAMIC; 3227 } 3228 3229 /* send SM PS frame to AP */ 3230 err = ieee80211_send_smps_action(sdata, smps_mode, 3231 ap, ap); 3232 if (err) 3233 link->u.mgd.req_smps = old_req; 3234 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3235 ieee80211_teardown_tdls_peers(sdata); 3236 3237 return err; 3238 } 3239 ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3240 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3241 bool enabled, int timeout) 3242 { 3243 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3244 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3245 unsigned int link_id; 3246 3247 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3248 return -EOPNOTSUPP; 3249 3250 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3251 return -EOPNOTSUPP; 3252 3253 if (enabled == sdata->u.mgd.powersave && 3254 timeout == local->dynamic_ps_forced_timeout) 3255 return 0; 3256 3257 sdata->u.mgd.powersave = enabled; 3258 local->dynamic_ps_forced_timeout = timeout; 3259 3260 /* no change, but if automatic follow powersave */ 3261 sdata_lock(sdata); 3262 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3263 struct ieee80211_link_data *link; 3264 3265 link = sdata_dereference(sdata->link[link_id], sdata); 3266 3267 if (!link) 3268 continue; 3269 __ieee80211_request_smps_mgd(sdata, link, 3270 link->u.mgd.req_smps); 3271 } 3272 sdata_unlock(sdata); 3273 3274 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3275 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3276 3277 ieee80211_recalc_ps(local); 3278 ieee80211_recalc_ps_vif(sdata); 3279 ieee80211_check_fast_rx_iface(sdata); 3280 3281 return 0; 3282 } 3283 ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3284 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3285 struct net_device *dev, 3286 s32 rssi_thold, u32 rssi_hyst) 3287 { 3288 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3289 struct ieee80211_vif *vif = &sdata->vif; 3290 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3291 3292 if (rssi_thold == bss_conf->cqm_rssi_thold && 3293 rssi_hyst == bss_conf->cqm_rssi_hyst) 3294 return 0; 3295 3296 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3297 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3298 return -EOPNOTSUPP; 3299 3300 bss_conf->cqm_rssi_thold = rssi_thold; 3301 bss_conf->cqm_rssi_hyst = rssi_hyst; 3302 bss_conf->cqm_rssi_low = 0; 3303 bss_conf->cqm_rssi_high = 0; 3304 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3305 3306 /* tell the driver upon association, unless already associated */ 3307 if (sdata->u.mgd.associated && 3308 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3309 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3310 BSS_CHANGED_CQM); 3311 3312 return 0; 3313 } 3314 ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3315 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3316 struct net_device *dev, 3317 s32 rssi_low, s32 rssi_high) 3318 { 3319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3320 struct ieee80211_vif *vif = &sdata->vif; 3321 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3322 3323 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3324 return -EOPNOTSUPP; 3325 3326 bss_conf->cqm_rssi_low = rssi_low; 3327 bss_conf->cqm_rssi_high = rssi_high; 3328 bss_conf->cqm_rssi_thold = 0; 3329 bss_conf->cqm_rssi_hyst = 0; 3330 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3331 3332 /* tell the driver upon association, unless already associated */ 3333 if (sdata->u.mgd.associated && 3334 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3335 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3336 BSS_CHANGED_CQM); 3337 3338 return 0; 3339 } 3340 ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3341 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3342 struct net_device *dev, 3343 unsigned int link_id, 3344 const u8 *addr, 3345 const struct cfg80211_bitrate_mask *mask) 3346 { 3347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3348 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3349 int i, ret; 3350 3351 if (!ieee80211_sdata_running(sdata)) 3352 return -ENETDOWN; 3353 3354 /* 3355 * If active validate the setting and reject it if it doesn't leave 3356 * at least one basic rate usable, since we really have to be able 3357 * to send something, and if we're an AP we have to be able to do 3358 * so at a basic rate so that all clients can receive it. 3359 */ 3360 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3361 sdata->vif.bss_conf.chandef.chan) { 3362 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3363 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3364 3365 if (!(mask->control[band].legacy & basic_rates)) 3366 return -EINVAL; 3367 } 3368 3369 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3370 ret = drv_set_bitrate_mask(local, sdata, mask); 3371 if (ret) 3372 return ret; 3373 } 3374 3375 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3376 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3377 int j; 3378 3379 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3380 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3381 sizeof(mask->control[i].ht_mcs)); 3382 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3383 mask->control[i].vht_mcs, 3384 sizeof(mask->control[i].vht_mcs)); 3385 3386 sdata->rc_has_mcs_mask[i] = false; 3387 sdata->rc_has_vht_mcs_mask[i] = false; 3388 if (!sband) 3389 continue; 3390 3391 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3392 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3393 sdata->rc_has_mcs_mask[i] = true; 3394 break; 3395 } 3396 } 3397 3398 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3399 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3400 sdata->rc_has_vht_mcs_mask[i] = true; 3401 break; 3402 } 3403 } 3404 } 3405 3406 return 0; 3407 } 3408 ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3409 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3410 struct net_device *dev, 3411 struct cfg80211_chan_def *chandef, 3412 u32 cac_time_ms) 3413 { 3414 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3415 struct ieee80211_local *local = sdata->local; 3416 int err; 3417 3418 mutex_lock(&local->mtx); 3419 if (!list_empty(&local->roc_list) || local->scanning) { 3420 err = -EBUSY; 3421 goto out_unlock; 3422 } 3423 3424 /* whatever, but channel contexts should not complain about that one */ 3425 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3426 sdata->deflink.needed_rx_chains = local->rx_chains; 3427 3428 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3429 IEEE80211_CHANCTX_SHARED); 3430 if (err) 3431 goto out_unlock; 3432 3433 ieee80211_queue_delayed_work(&sdata->local->hw, 3434 &sdata->deflink.dfs_cac_timer_work, 3435 msecs_to_jiffies(cac_time_ms)); 3436 3437 out_unlock: 3438 mutex_unlock(&local->mtx); 3439 return err; 3440 } 3441 ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3442 static void ieee80211_end_cac(struct wiphy *wiphy, 3443 struct net_device *dev) 3444 { 3445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3446 struct ieee80211_local *local = sdata->local; 3447 3448 mutex_lock(&local->mtx); 3449 list_for_each_entry(sdata, &local->interfaces, list) { 3450 /* it might be waiting for the local->mtx, but then 3451 * by the time it gets it, sdata->wdev.cac_started 3452 * will no longer be true 3453 */ 3454 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3455 3456 if (sdata->wdev.cac_started) { 3457 ieee80211_link_release_channel(&sdata->deflink); 3458 sdata->wdev.cac_started = false; 3459 } 3460 } 3461 mutex_unlock(&local->mtx); 3462 } 3463 3464 static struct cfg80211_beacon_data * cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3465 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3466 { 3467 struct cfg80211_beacon_data *new_beacon; 3468 u8 *pos; 3469 int len; 3470 3471 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3472 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3473 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3474 3475 if (beacon->mbssid_ies) 3476 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3477 beacon->rnr_ies, 3478 beacon->mbssid_ies->cnt); 3479 3480 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3481 if (!new_beacon) 3482 return NULL; 3483 3484 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3485 new_beacon->mbssid_ies = 3486 kzalloc(struct_size(new_beacon->mbssid_ies, 3487 elem, beacon->mbssid_ies->cnt), 3488 GFP_KERNEL); 3489 if (!new_beacon->mbssid_ies) { 3490 kfree(new_beacon); 3491 return NULL; 3492 } 3493 3494 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3495 new_beacon->rnr_ies = 3496 kzalloc(struct_size(new_beacon->rnr_ies, 3497 elem, beacon->rnr_ies->cnt), 3498 GFP_KERNEL); 3499 if (!new_beacon->rnr_ies) { 3500 kfree(new_beacon->mbssid_ies); 3501 kfree(new_beacon); 3502 return NULL; 3503 } 3504 } 3505 } 3506 3507 pos = (u8 *)(new_beacon + 1); 3508 if (beacon->head_len) { 3509 new_beacon->head_len = beacon->head_len; 3510 new_beacon->head = pos; 3511 memcpy(pos, beacon->head, beacon->head_len); 3512 pos += beacon->head_len; 3513 } 3514 if (beacon->tail_len) { 3515 new_beacon->tail_len = beacon->tail_len; 3516 new_beacon->tail = pos; 3517 memcpy(pos, beacon->tail, beacon->tail_len); 3518 pos += beacon->tail_len; 3519 } 3520 if (beacon->beacon_ies_len) { 3521 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3522 new_beacon->beacon_ies = pos; 3523 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3524 pos += beacon->beacon_ies_len; 3525 } 3526 if (beacon->proberesp_ies_len) { 3527 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3528 new_beacon->proberesp_ies = pos; 3529 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3530 pos += beacon->proberesp_ies_len; 3531 } 3532 if (beacon->assocresp_ies_len) { 3533 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3534 new_beacon->assocresp_ies = pos; 3535 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3536 pos += beacon->assocresp_ies_len; 3537 } 3538 if (beacon->probe_resp_len) { 3539 new_beacon->probe_resp_len = beacon->probe_resp_len; 3540 new_beacon->probe_resp = pos; 3541 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3542 pos += beacon->probe_resp_len; 3543 } 3544 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3545 pos += ieee80211_copy_mbssid_beacon(pos, 3546 new_beacon->mbssid_ies, 3547 beacon->mbssid_ies); 3548 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3549 pos += ieee80211_copy_rnr_beacon(pos, 3550 new_beacon->rnr_ies, 3551 beacon->rnr_ies); 3552 } 3553 3554 /* might copy -1, meaning no changes requested */ 3555 new_beacon->ftm_responder = beacon->ftm_responder; 3556 if (beacon->lci) { 3557 new_beacon->lci_len = beacon->lci_len; 3558 new_beacon->lci = pos; 3559 memcpy(pos, beacon->lci, beacon->lci_len); 3560 pos += beacon->lci_len; 3561 } 3562 if (beacon->civicloc) { 3563 new_beacon->civicloc_len = beacon->civicloc_len; 3564 new_beacon->civicloc = pos; 3565 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3566 pos += beacon->civicloc_len; 3567 } 3568 3569 return new_beacon; 3570 } 3571 ieee80211_csa_finish(struct ieee80211_vif * vif)3572 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3573 { 3574 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3575 struct ieee80211_local *local = sdata->local; 3576 3577 rcu_read_lock(); 3578 3579 if (vif->mbssid_tx_vif == vif) { 3580 /* Trigger ieee80211_csa_finish() on the non-transmitting 3581 * interfaces when channel switch is received on 3582 * transmitting interface 3583 */ 3584 struct ieee80211_sub_if_data *iter; 3585 3586 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3587 if (!ieee80211_sdata_running(iter)) 3588 continue; 3589 3590 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3591 continue; 3592 3593 ieee80211_queue_work(&iter->local->hw, 3594 &iter->deflink.csa_finalize_work); 3595 } 3596 } 3597 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3598 3599 rcu_read_unlock(); 3600 } 3601 EXPORT_SYMBOL(ieee80211_csa_finish); 3602 ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif,bool block_tx)3603 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3604 { 3605 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3606 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3607 struct ieee80211_local *local = sdata->local; 3608 3609 sdata->deflink.csa_block_tx = block_tx; 3610 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3611 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3612 } 3613 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3614 ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)3615 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3616 u64 *changed) 3617 { 3618 int err; 3619 3620 switch (sdata->vif.type) { 3621 case NL80211_IFTYPE_AP: 3622 if (!sdata->deflink.u.ap.next_beacon) 3623 return -EINVAL; 3624 3625 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3626 sdata->deflink.u.ap.next_beacon, 3627 NULL, NULL, changed); 3628 ieee80211_free_next_beacon(&sdata->deflink); 3629 3630 if (err < 0) 3631 return err; 3632 break; 3633 case NL80211_IFTYPE_ADHOC: 3634 err = ieee80211_ibss_finish_csa(sdata, changed); 3635 if (err < 0) 3636 return err; 3637 break; 3638 #ifdef CONFIG_MAC80211_MESH 3639 case NL80211_IFTYPE_MESH_POINT: 3640 err = ieee80211_mesh_finish_csa(sdata, changed); 3641 if (err < 0) 3642 return err; 3643 break; 3644 #endif 3645 default: 3646 WARN_ON(1); 3647 return -EINVAL; 3648 } 3649 3650 return 0; 3651 } 3652 __ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3653 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3654 { 3655 struct ieee80211_local *local = sdata->local; 3656 u64 changed = 0; 3657 int err; 3658 3659 sdata_assert_lock(sdata); 3660 lockdep_assert_held(&local->mtx); 3661 lockdep_assert_held(&local->chanctx_mtx); 3662 3663 /* 3664 * using reservation isn't immediate as it may be deferred until later 3665 * with multi-vif. once reservation is complete it will re-schedule the 3666 * work with no reserved_chanctx so verify chandef to check if it 3667 * completed successfully 3668 */ 3669 3670 if (sdata->deflink.reserved_chanctx) { 3671 /* 3672 * with multi-vif csa driver may call ieee80211_csa_finish() 3673 * many times while waiting for other interfaces to use their 3674 * reservations 3675 */ 3676 if (sdata->deflink.reserved_ready) 3677 return 0; 3678 3679 return ieee80211_link_use_reserved_context(&sdata->deflink); 3680 } 3681 3682 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3683 &sdata->deflink.csa_chandef)) 3684 return -EINVAL; 3685 3686 sdata->vif.bss_conf.csa_active = false; 3687 3688 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3689 if (err) 3690 return err; 3691 3692 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3693 sdata->vif.bss_conf.eht_puncturing = 3694 sdata->vif.bss_conf.csa_punct_bitmap; 3695 changed |= BSS_CHANGED_EHT_PUNCTURING; 3696 } 3697 3698 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3699 3700 if (sdata->deflink.csa_block_tx) { 3701 ieee80211_wake_vif_queues(local, sdata, 3702 IEEE80211_QUEUE_STOP_REASON_CSA); 3703 sdata->deflink.csa_block_tx = false; 3704 } 3705 3706 err = drv_post_channel_switch(sdata); 3707 if (err) 3708 return err; 3709 3710 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3711 sdata->vif.bss_conf.eht_puncturing); 3712 3713 return 0; 3714 } 3715 ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3716 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3717 { 3718 if (__ieee80211_csa_finalize(sdata)) { 3719 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3720 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3721 GFP_KERNEL); 3722 } 3723 } 3724 ieee80211_csa_finalize_work(struct work_struct * work)3725 void ieee80211_csa_finalize_work(struct work_struct *work) 3726 { 3727 struct ieee80211_sub_if_data *sdata = 3728 container_of(work, struct ieee80211_sub_if_data, 3729 deflink.csa_finalize_work); 3730 struct ieee80211_local *local = sdata->local; 3731 3732 sdata_lock(sdata); 3733 mutex_lock(&local->mtx); 3734 mutex_lock(&local->chanctx_mtx); 3735 3736 /* AP might have been stopped while waiting for the lock. */ 3737 if (!sdata->vif.bss_conf.csa_active) 3738 goto unlock; 3739 3740 if (!ieee80211_sdata_running(sdata)) 3741 goto unlock; 3742 3743 ieee80211_csa_finalize(sdata); 3744 3745 unlock: 3746 mutex_unlock(&local->chanctx_mtx); 3747 mutex_unlock(&local->mtx); 3748 sdata_unlock(sdata); 3749 } 3750 ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u64 * changed)3751 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3752 struct cfg80211_csa_settings *params, 3753 u64 *changed) 3754 { 3755 struct ieee80211_csa_settings csa = {}; 3756 int err; 3757 3758 switch (sdata->vif.type) { 3759 case NL80211_IFTYPE_AP: 3760 sdata->deflink.u.ap.next_beacon = 3761 cfg80211_beacon_dup(¶ms->beacon_after); 3762 if (!sdata->deflink.u.ap.next_beacon) 3763 return -ENOMEM; 3764 3765 /* 3766 * With a count of 0, we don't have to wait for any 3767 * TBTT before switching, so complete the CSA 3768 * immediately. In theory, with a count == 1 we 3769 * should delay the switch until just before the next 3770 * TBTT, but that would complicate things so we switch 3771 * immediately too. If we would delay the switch 3772 * until the next TBTT, we would have to set the probe 3773 * response here. 3774 * 3775 * TODO: A channel switch with count <= 1 without 3776 * sending a CSA action frame is kind of useless, 3777 * because the clients won't know we're changing 3778 * channels. The action frame must be implemented 3779 * either here or in the userspace. 3780 */ 3781 if (params->count <= 1) 3782 break; 3783 3784 if ((params->n_counter_offsets_beacon > 3785 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3786 (params->n_counter_offsets_presp > 3787 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3788 ieee80211_free_next_beacon(&sdata->deflink); 3789 return -EINVAL; 3790 } 3791 3792 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3793 csa.counter_offsets_presp = params->counter_offsets_presp; 3794 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3795 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3796 csa.count = params->count; 3797 3798 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3799 ¶ms->beacon_csa, &csa, 3800 NULL, changed); 3801 if (err < 0) { 3802 ieee80211_free_next_beacon(&sdata->deflink); 3803 return err; 3804 } 3805 3806 break; 3807 case NL80211_IFTYPE_ADHOC: 3808 if (!sdata->vif.cfg.ibss_joined) 3809 return -EINVAL; 3810 3811 if (params->chandef.width != sdata->u.ibss.chandef.width) 3812 return -EINVAL; 3813 3814 switch (params->chandef.width) { 3815 case NL80211_CHAN_WIDTH_40: 3816 if (cfg80211_get_chandef_type(¶ms->chandef) != 3817 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3818 return -EINVAL; 3819 break; 3820 case NL80211_CHAN_WIDTH_5: 3821 case NL80211_CHAN_WIDTH_10: 3822 case NL80211_CHAN_WIDTH_20_NOHT: 3823 case NL80211_CHAN_WIDTH_20: 3824 break; 3825 default: 3826 return -EINVAL; 3827 } 3828 3829 /* changes into another band are not supported */ 3830 if (sdata->u.ibss.chandef.chan->band != 3831 params->chandef.chan->band) 3832 return -EINVAL; 3833 3834 /* see comments in the NL80211_IFTYPE_AP block */ 3835 if (params->count > 1) { 3836 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3837 if (err < 0) 3838 return err; 3839 } 3840 3841 ieee80211_send_action_csa(sdata, params); 3842 3843 break; 3844 #ifdef CONFIG_MAC80211_MESH 3845 case NL80211_IFTYPE_MESH_POINT: { 3846 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3847 3848 /* changes into another band are not supported */ 3849 if (sdata->vif.bss_conf.chandef.chan->band != 3850 params->chandef.chan->band) 3851 return -EINVAL; 3852 3853 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3854 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3855 if (!ifmsh->pre_value) 3856 ifmsh->pre_value = 1; 3857 else 3858 ifmsh->pre_value++; 3859 } 3860 3861 /* see comments in the NL80211_IFTYPE_AP block */ 3862 if (params->count > 1) { 3863 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3864 if (err < 0) { 3865 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3866 return err; 3867 } 3868 } 3869 3870 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3871 ieee80211_send_action_csa(sdata, params); 3872 3873 break; 3874 } 3875 #endif 3876 default: 3877 return -EOPNOTSUPP; 3878 } 3879 3880 return 0; 3881 } 3882 ieee80211_color_change_abort(struct ieee80211_sub_if_data * sdata)3883 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3884 { 3885 sdata->vif.bss_conf.color_change_active = false; 3886 3887 ieee80211_free_next_beacon(&sdata->deflink); 3888 3889 cfg80211_color_change_aborted_notify(sdata->dev); 3890 } 3891 3892 static int __ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3893 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3894 struct cfg80211_csa_settings *params) 3895 { 3896 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3897 struct ieee80211_local *local = sdata->local; 3898 struct ieee80211_channel_switch ch_switch; 3899 struct ieee80211_chanctx_conf *conf; 3900 struct ieee80211_chanctx *chanctx; 3901 u64 changed = 0; 3902 int err; 3903 3904 sdata_assert_lock(sdata); 3905 lockdep_assert_held(&local->mtx); 3906 3907 if (!list_empty(&local->roc_list) || local->scanning) 3908 return -EBUSY; 3909 3910 if (sdata->wdev.cac_started) 3911 return -EBUSY; 3912 3913 if (cfg80211_chandef_identical(¶ms->chandef, 3914 &sdata->vif.bss_conf.chandef)) 3915 return -EINVAL; 3916 3917 /* don't allow another channel switch if one is already active. */ 3918 if (sdata->vif.bss_conf.csa_active) 3919 return -EBUSY; 3920 3921 mutex_lock(&local->chanctx_mtx); 3922 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3923 lockdep_is_held(&local->chanctx_mtx)); 3924 if (!conf) { 3925 err = -EBUSY; 3926 goto out; 3927 } 3928 3929 if (params->chandef.chan->freq_offset) { 3930 /* this may work, but is untested */ 3931 err = -EOPNOTSUPP; 3932 goto out; 3933 } 3934 3935 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3936 3937 ch_switch.timestamp = 0; 3938 ch_switch.device_timestamp = 0; 3939 ch_switch.block_tx = params->block_tx; 3940 ch_switch.chandef = params->chandef; 3941 ch_switch.count = params->count; 3942 3943 err = drv_pre_channel_switch(sdata, &ch_switch); 3944 if (err) 3945 goto out; 3946 3947 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3948 chanctx->mode, 3949 params->radar_required); 3950 if (err) 3951 goto out; 3952 3953 /* if reservation is invalid then this will fail */ 3954 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3955 if (err) { 3956 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3957 goto out; 3958 } 3959 3960 /* if there is a color change in progress, abort it */ 3961 if (sdata->vif.bss_conf.color_change_active) 3962 ieee80211_color_change_abort(sdata); 3963 3964 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3965 if (err) { 3966 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3967 goto out; 3968 } 3969 3970 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3971 goto out; 3972 3973 sdata->deflink.csa_chandef = params->chandef; 3974 sdata->deflink.csa_block_tx = params->block_tx; 3975 sdata->vif.bss_conf.csa_active = true; 3976 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3977 3978 if (sdata->deflink.csa_block_tx) 3979 ieee80211_stop_vif_queues(local, sdata, 3980 IEEE80211_QUEUE_STOP_REASON_CSA); 3981 3982 cfg80211_ch_switch_started_notify(sdata->dev, 3983 &sdata->deflink.csa_chandef, 0, 3984 params->count, params->block_tx, 3985 sdata->vif.bss_conf.csa_punct_bitmap); 3986 3987 if (changed) { 3988 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3989 changed); 3990 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3991 } else { 3992 /* if the beacon didn't change, we can finalize immediately */ 3993 ieee80211_csa_finalize(sdata); 3994 } 3995 3996 out: 3997 mutex_unlock(&local->chanctx_mtx); 3998 return err; 3999 } 4000 ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4001 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4002 struct cfg80211_csa_settings *params) 4003 { 4004 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4005 struct ieee80211_local *local = sdata->local; 4006 int err; 4007 4008 mutex_lock(&local->mtx); 4009 err = __ieee80211_channel_switch(wiphy, dev, params); 4010 mutex_unlock(&local->mtx); 4011 4012 return err; 4013 } 4014 ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4015 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4016 { 4017 lockdep_assert_held(&local->mtx); 4018 4019 local->roc_cookie_counter++; 4020 4021 /* wow, you wrapped 64 bits ... more likely a bug */ 4022 if (WARN_ON(local->roc_cookie_counter == 0)) 4023 local->roc_cookie_counter++; 4024 4025 return local->roc_cookie_counter; 4026 } 4027 ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4028 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4029 u64 *cookie, gfp_t gfp) 4030 { 4031 unsigned long spin_flags; 4032 struct sk_buff *ack_skb; 4033 int id; 4034 4035 ack_skb = skb_copy(skb, gfp); 4036 if (!ack_skb) 4037 return -ENOMEM; 4038 4039 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4040 id = idr_alloc(&local->ack_status_frames, ack_skb, 4041 1, 0x2000, GFP_ATOMIC); 4042 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4043 4044 if (id < 0) { 4045 kfree_skb(ack_skb); 4046 return -ENOMEM; 4047 } 4048 4049 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4050 4051 *cookie = ieee80211_mgmt_tx_cookie(local); 4052 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4053 4054 return 0; 4055 } 4056 4057 static void ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4058 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4059 struct wireless_dev *wdev, 4060 struct mgmt_frame_regs *upd) 4061 { 4062 struct ieee80211_local *local = wiphy_priv(wiphy); 4063 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4064 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4065 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4066 bool global_change, intf_change; 4067 4068 global_change = 4069 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4070 (local->rx_mcast_action_reg != 4071 !!(upd->global_mcast_stypes & action_mask)); 4072 local->probe_req_reg = upd->global_stypes & preq_mask; 4073 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4074 4075 intf_change = (sdata->vif.probe_req_reg != 4076 !!(upd->interface_stypes & preq_mask)) || 4077 (sdata->vif.rx_mcast_action_reg != 4078 !!(upd->interface_mcast_stypes & action_mask)); 4079 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4080 sdata->vif.rx_mcast_action_reg = 4081 upd->interface_mcast_stypes & action_mask; 4082 4083 if (!local->open_count) 4084 return; 4085 4086 if (intf_change && ieee80211_sdata_running(sdata)) 4087 drv_config_iface_filter(local, sdata, 4088 sdata->vif.probe_req_reg ? 4089 FIF_PROBE_REQ : 0, 4090 FIF_PROBE_REQ); 4091 4092 if (global_change) 4093 ieee80211_configure_filter(local); 4094 } 4095 ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4096 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4097 { 4098 struct ieee80211_local *local = wiphy_priv(wiphy); 4099 4100 if (local->started) 4101 return -EOPNOTSUPP; 4102 4103 return drv_set_antenna(local, tx_ant, rx_ant); 4104 } 4105 ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4106 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4107 { 4108 struct ieee80211_local *local = wiphy_priv(wiphy); 4109 4110 return drv_get_antenna(local, tx_ant, rx_ant); 4111 } 4112 ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4113 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4114 struct net_device *dev, 4115 struct cfg80211_gtk_rekey_data *data) 4116 { 4117 struct ieee80211_local *local = wiphy_priv(wiphy); 4118 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4119 4120 if (!local->ops->set_rekey_data) 4121 return -EOPNOTSUPP; 4122 4123 drv_set_rekey_data(local, sdata, data); 4124 4125 return 0; 4126 } 4127 ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4128 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4129 const u8 *peer, u64 *cookie) 4130 { 4131 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4132 struct ieee80211_local *local = sdata->local; 4133 struct ieee80211_qos_hdr *nullfunc; 4134 struct sk_buff *skb; 4135 int size = sizeof(*nullfunc); 4136 __le16 fc; 4137 bool qos; 4138 struct ieee80211_tx_info *info; 4139 struct sta_info *sta; 4140 struct ieee80211_chanctx_conf *chanctx_conf; 4141 enum nl80211_band band; 4142 int ret; 4143 4144 /* the lock is needed to assign the cookie later */ 4145 mutex_lock(&local->mtx); 4146 4147 rcu_read_lock(); 4148 sta = sta_info_get_bss(sdata, peer); 4149 if (!sta) { 4150 ret = -ENOLINK; 4151 goto unlock; 4152 } 4153 4154 qos = sta->sta.wme; 4155 4156 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4157 if (WARN_ON(!chanctx_conf)) { 4158 ret = -EINVAL; 4159 goto unlock; 4160 } 4161 band = chanctx_conf->def.chan->band; 4162 4163 if (qos) { 4164 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4165 IEEE80211_STYPE_QOS_NULLFUNC | 4166 IEEE80211_FCTL_FROMDS); 4167 } else { 4168 size -= 2; 4169 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4170 IEEE80211_STYPE_NULLFUNC | 4171 IEEE80211_FCTL_FROMDS); 4172 } 4173 4174 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4175 if (!skb) { 4176 ret = -ENOMEM; 4177 goto unlock; 4178 } 4179 4180 skb->dev = dev; 4181 4182 skb_reserve(skb, local->hw.extra_tx_headroom); 4183 4184 nullfunc = skb_put(skb, size); 4185 nullfunc->frame_control = fc; 4186 nullfunc->duration_id = 0; 4187 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4188 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4189 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4190 nullfunc->seq_ctrl = 0; 4191 4192 info = IEEE80211_SKB_CB(skb); 4193 4194 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4195 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4196 info->band = band; 4197 4198 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4199 skb->priority = 7; 4200 if (qos) 4201 nullfunc->qos_ctrl = cpu_to_le16(7); 4202 4203 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4204 if (ret) { 4205 kfree_skb(skb); 4206 goto unlock; 4207 } 4208 4209 local_bh_disable(); 4210 ieee80211_xmit(sdata, sta, skb); 4211 local_bh_enable(); 4212 4213 ret = 0; 4214 unlock: 4215 rcu_read_unlock(); 4216 mutex_unlock(&local->mtx); 4217 4218 return ret; 4219 } 4220 ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4221 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4222 struct wireless_dev *wdev, 4223 unsigned int link_id, 4224 struct cfg80211_chan_def *chandef) 4225 { 4226 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4227 struct ieee80211_local *local = wiphy_priv(wiphy); 4228 struct ieee80211_chanctx_conf *chanctx_conf; 4229 struct ieee80211_link_data *link; 4230 int ret = -ENODATA; 4231 4232 rcu_read_lock(); 4233 link = rcu_dereference(sdata->link[link_id]); 4234 if (!link) { 4235 ret = -ENOLINK; 4236 goto out; 4237 } 4238 4239 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4240 if (chanctx_conf) { 4241 *chandef = link->conf->chandef; 4242 ret = 0; 4243 } else if (local->open_count > 0 && 4244 local->open_count == local->monitors && 4245 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4246 if (local->use_chanctx) 4247 *chandef = local->monitor_chandef; 4248 else 4249 *chandef = local->_oper_chandef; 4250 ret = 0; 4251 } 4252 out: 4253 rcu_read_unlock(); 4254 4255 return ret; 4256 } 4257 4258 #ifdef CONFIG_PM ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4259 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4260 { 4261 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4262 } 4263 #endif 4264 ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4265 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4266 struct net_device *dev, 4267 struct cfg80211_qos_map *qos_map) 4268 { 4269 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4270 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4271 4272 if (qos_map) { 4273 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4274 if (!new_qos_map) 4275 return -ENOMEM; 4276 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4277 } else { 4278 /* A NULL qos_map was passed to disable QoS mapping */ 4279 new_qos_map = NULL; 4280 } 4281 4282 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4283 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4284 if (old_qos_map) 4285 kfree_rcu(old_qos_map, rcu_head); 4286 4287 return 0; 4288 } 4289 ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4290 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4291 struct net_device *dev, 4292 unsigned int link_id, 4293 struct cfg80211_chan_def *chandef) 4294 { 4295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4296 struct ieee80211_link_data *link; 4297 int ret; 4298 u64 changed = 0; 4299 4300 link = sdata_dereference(sdata->link[link_id], sdata); 4301 4302 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4303 if (ret == 0) 4304 ieee80211_link_info_change_notify(sdata, link, changed); 4305 4306 return ret; 4307 } 4308 ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4309 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4310 u8 tsid, const u8 *peer, u8 up, 4311 u16 admitted_time) 4312 { 4313 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4314 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4315 int ac = ieee802_1d_to_ac[up]; 4316 4317 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4318 return -EOPNOTSUPP; 4319 4320 if (!(sdata->wmm_acm & BIT(up))) 4321 return -EINVAL; 4322 4323 if (ifmgd->tx_tspec[ac].admitted_time) 4324 return -EBUSY; 4325 4326 if (admitted_time) { 4327 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4328 ifmgd->tx_tspec[ac].tsid = tsid; 4329 ifmgd->tx_tspec[ac].up = up; 4330 } 4331 4332 return 0; 4333 } 4334 ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4335 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4336 u8 tsid, const u8 *peer) 4337 { 4338 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4339 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4340 struct ieee80211_local *local = wiphy_priv(wiphy); 4341 int ac; 4342 4343 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4344 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4345 4346 /* skip unused entries */ 4347 if (!tx_tspec->admitted_time) 4348 continue; 4349 4350 if (tx_tspec->tsid != tsid) 4351 continue; 4352 4353 /* due to this new packets will be reassigned to non-ACM ACs */ 4354 tx_tspec->up = -1; 4355 4356 /* Make sure that all packets have been sent to avoid to 4357 * restore the QoS params on packets that are still on the 4358 * queues. 4359 */ 4360 synchronize_net(); 4361 ieee80211_flush_queues(local, sdata, false); 4362 4363 /* restore the normal QoS parameters 4364 * (unconditionally to avoid races) 4365 */ 4366 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4367 tx_tspec->downgraded = false; 4368 ieee80211_sta_handle_tspec_ac_params(sdata); 4369 4370 /* finally clear all the data */ 4371 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4372 4373 return 0; 4374 } 4375 4376 return -ENOENT; 4377 } 4378 ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4379 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4380 u8 inst_id, 4381 enum nl80211_nan_func_term_reason reason, 4382 gfp_t gfp) 4383 { 4384 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4385 struct cfg80211_nan_func *func; 4386 u64 cookie; 4387 4388 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4389 return; 4390 4391 spin_lock_bh(&sdata->u.nan.func_lock); 4392 4393 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4394 if (WARN_ON(!func)) { 4395 spin_unlock_bh(&sdata->u.nan.func_lock); 4396 return; 4397 } 4398 4399 cookie = func->cookie; 4400 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4401 4402 spin_unlock_bh(&sdata->u.nan.func_lock); 4403 4404 cfg80211_free_nan_func(func); 4405 4406 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4407 reason, cookie, gfp); 4408 } 4409 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4410 ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4411 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4412 struct cfg80211_nan_match_params *match, 4413 gfp_t gfp) 4414 { 4415 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4416 struct cfg80211_nan_func *func; 4417 4418 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4419 return; 4420 4421 spin_lock_bh(&sdata->u.nan.func_lock); 4422 4423 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4424 if (WARN_ON(!func)) { 4425 spin_unlock_bh(&sdata->u.nan.func_lock); 4426 return; 4427 } 4428 match->cookie = func->cookie; 4429 4430 spin_unlock_bh(&sdata->u.nan.func_lock); 4431 4432 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4433 } 4434 EXPORT_SYMBOL(ieee80211_nan_func_match); 4435 ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4436 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4437 struct net_device *dev, 4438 const bool enabled) 4439 { 4440 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4441 4442 sdata->u.ap.multicast_to_unicast = enabled; 4443 4444 return 0; 4445 } 4446 ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4447 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4448 struct txq_info *txqi) 4449 { 4450 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4451 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4452 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4453 } 4454 4455 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4456 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4457 txqstats->backlog_packets = txqi->tin.backlog_packets; 4458 } 4459 4460 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4461 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4462 txqstats->flows = txqi->tin.flows; 4463 } 4464 4465 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4466 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4467 txqstats->drops = txqi->cstats.drop_count; 4468 } 4469 4470 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4471 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4472 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4473 } 4474 4475 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4476 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4477 txqstats->overlimit = txqi->tin.overlimit; 4478 } 4479 4480 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4481 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4482 txqstats->collisions = txqi->tin.collisions; 4483 } 4484 4485 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4486 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4487 txqstats->tx_bytes = txqi->tin.tx_bytes; 4488 } 4489 4490 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4491 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4492 txqstats->tx_packets = txqi->tin.tx_packets; 4493 } 4494 } 4495 ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4496 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4497 struct wireless_dev *wdev, 4498 struct cfg80211_txq_stats *txqstats) 4499 { 4500 struct ieee80211_local *local = wiphy_priv(wiphy); 4501 struct ieee80211_sub_if_data *sdata; 4502 int ret = 0; 4503 4504 spin_lock_bh(&local->fq.lock); 4505 rcu_read_lock(); 4506 4507 if (wdev) { 4508 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4509 if (!sdata->vif.txq) { 4510 ret = 1; 4511 goto out; 4512 } 4513 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4514 } else { 4515 /* phy stats */ 4516 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4517 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4518 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4519 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4520 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4521 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4522 txqstats->backlog_packets = local->fq.backlog; 4523 txqstats->backlog_bytes = local->fq.memory_usage; 4524 txqstats->overlimit = local->fq.overlimit; 4525 txqstats->overmemory = local->fq.overmemory; 4526 txqstats->collisions = local->fq.collisions; 4527 txqstats->max_flows = local->fq.flows_cnt; 4528 } 4529 4530 out: 4531 rcu_read_unlock(); 4532 spin_unlock_bh(&local->fq.lock); 4533 4534 return ret; 4535 } 4536 4537 static int ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4538 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4539 struct net_device *dev, 4540 struct cfg80211_ftm_responder_stats *ftm_stats) 4541 { 4542 struct ieee80211_local *local = wiphy_priv(wiphy); 4543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4544 4545 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4546 } 4547 4548 static int ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4549 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4550 struct cfg80211_pmsr_request *request) 4551 { 4552 struct ieee80211_local *local = wiphy_priv(wiphy); 4553 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4554 4555 return drv_start_pmsr(local, sdata, request); 4556 } 4557 4558 static void ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4559 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4560 struct cfg80211_pmsr_request *request) 4561 { 4562 struct ieee80211_local *local = wiphy_priv(wiphy); 4563 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4564 4565 return drv_abort_pmsr(local, sdata, request); 4566 } 4567 ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4568 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4569 struct net_device *dev, 4570 struct cfg80211_tid_config *tid_conf) 4571 { 4572 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4573 struct sta_info *sta; 4574 int ret; 4575 4576 if (!sdata->local->ops->set_tid_config) 4577 return -EOPNOTSUPP; 4578 4579 if (!tid_conf->peer) 4580 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4581 4582 mutex_lock(&sdata->local->sta_mtx); 4583 sta = sta_info_get_bss(sdata, tid_conf->peer); 4584 if (!sta) { 4585 mutex_unlock(&sdata->local->sta_mtx); 4586 return -ENOENT; 4587 } 4588 4589 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4590 mutex_unlock(&sdata->local->sta_mtx); 4591 4592 return ret; 4593 } 4594 ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4595 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4596 struct net_device *dev, 4597 const u8 *peer, u8 tids) 4598 { 4599 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4600 struct sta_info *sta; 4601 int ret; 4602 4603 if (!sdata->local->ops->reset_tid_config) 4604 return -EOPNOTSUPP; 4605 4606 if (!peer) 4607 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4608 4609 mutex_lock(&sdata->local->sta_mtx); 4610 sta = sta_info_get_bss(sdata, peer); 4611 if (!sta) { 4612 mutex_unlock(&sdata->local->sta_mtx); 4613 return -ENOENT; 4614 } 4615 4616 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4617 mutex_unlock(&sdata->local->sta_mtx); 4618 4619 return ret; 4620 } 4621 ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4622 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4623 struct cfg80211_sar_specs *sar) 4624 { 4625 struct ieee80211_local *local = wiphy_priv(wiphy); 4626 4627 if (!local->ops->set_sar_specs) 4628 return -EOPNOTSUPP; 4629 4630 return local->ops->set_sar_specs(&local->hw, sar); 4631 } 4632 4633 static int ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)4634 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4635 u64 *changed) 4636 { 4637 switch (sdata->vif.type) { 4638 case NL80211_IFTYPE_AP: { 4639 int ret; 4640 4641 if (!sdata->deflink.u.ap.next_beacon) 4642 return -EINVAL; 4643 4644 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4645 sdata->deflink.u.ap.next_beacon, 4646 NULL, NULL, changed); 4647 ieee80211_free_next_beacon(&sdata->deflink); 4648 4649 if (ret < 0) 4650 return ret; 4651 4652 break; 4653 } 4654 default: 4655 WARN_ON_ONCE(1); 4656 return -EINVAL; 4657 } 4658 4659 return 0; 4660 } 4661 4662 static int ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_color_change_settings * params,u64 * changed)4663 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4664 struct cfg80211_color_change_settings *params, 4665 u64 *changed) 4666 { 4667 struct ieee80211_color_change_settings color_change = {}; 4668 int err; 4669 4670 switch (sdata->vif.type) { 4671 case NL80211_IFTYPE_AP: 4672 sdata->deflink.u.ap.next_beacon = 4673 cfg80211_beacon_dup(¶ms->beacon_next); 4674 if (!sdata->deflink.u.ap.next_beacon) 4675 return -ENOMEM; 4676 4677 if (params->count <= 1) 4678 break; 4679 4680 color_change.counter_offset_beacon = 4681 params->counter_offset_beacon; 4682 color_change.counter_offset_presp = 4683 params->counter_offset_presp; 4684 color_change.count = params->count; 4685 4686 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4687 ¶ms->beacon_color_change, 4688 NULL, &color_change, changed); 4689 if (err < 0) { 4690 ieee80211_free_next_beacon(&sdata->deflink); 4691 return err; 4692 } 4693 break; 4694 default: 4695 return -EOPNOTSUPP; 4696 } 4697 4698 return 0; 4699 } 4700 4701 static void ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data * sdata,u8 color,int enable,u64 changed)4702 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4703 u8 color, int enable, u64 changed) 4704 { 4705 sdata->vif.bss_conf.he_bss_color.color = color; 4706 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4707 changed |= BSS_CHANGED_HE_BSS_COLOR; 4708 4709 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4710 4711 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4712 struct ieee80211_sub_if_data *child; 4713 4714 mutex_lock(&sdata->local->iflist_mtx); 4715 list_for_each_entry(child, &sdata->local->interfaces, list) { 4716 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4717 child->vif.bss_conf.he_bss_color.color = color; 4718 child->vif.bss_conf.he_bss_color.enabled = enable; 4719 ieee80211_link_info_change_notify(child, 4720 &child->deflink, 4721 BSS_CHANGED_HE_BSS_COLOR); 4722 } 4723 } 4724 mutex_unlock(&sdata->local->iflist_mtx); 4725 } 4726 } 4727 ieee80211_color_change_finalize(struct ieee80211_sub_if_data * sdata)4728 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4729 { 4730 struct ieee80211_local *local = sdata->local; 4731 u64 changed = 0; 4732 int err; 4733 4734 sdata_assert_lock(sdata); 4735 lockdep_assert_held(&local->mtx); 4736 4737 sdata->vif.bss_conf.color_change_active = false; 4738 4739 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4740 if (err) { 4741 cfg80211_color_change_aborted_notify(sdata->dev); 4742 return err; 4743 } 4744 4745 ieee80211_color_change_bss_config_notify(sdata, 4746 sdata->vif.bss_conf.color_change_color, 4747 1, changed); 4748 cfg80211_color_change_notify(sdata->dev); 4749 4750 return 0; 4751 } 4752 ieee80211_color_change_finalize_work(struct work_struct * work)4753 void ieee80211_color_change_finalize_work(struct work_struct *work) 4754 { 4755 struct ieee80211_sub_if_data *sdata = 4756 container_of(work, struct ieee80211_sub_if_data, 4757 deflink.color_change_finalize_work); 4758 struct ieee80211_local *local = sdata->local; 4759 4760 sdata_lock(sdata); 4761 mutex_lock(&local->mtx); 4762 4763 /* AP might have been stopped while waiting for the lock. */ 4764 if (!sdata->vif.bss_conf.color_change_active) 4765 goto unlock; 4766 4767 if (!ieee80211_sdata_running(sdata)) 4768 goto unlock; 4769 4770 ieee80211_color_change_finalize(sdata); 4771 4772 unlock: 4773 mutex_unlock(&local->mtx); 4774 sdata_unlock(sdata); 4775 } 4776 ieee80211_color_collision_detection_work(struct work_struct * work)4777 void ieee80211_color_collision_detection_work(struct work_struct *work) 4778 { 4779 struct delayed_work *delayed_work = to_delayed_work(work); 4780 struct ieee80211_link_data *link = 4781 container_of(delayed_work, struct ieee80211_link_data, 4782 color_collision_detect_work); 4783 struct ieee80211_sub_if_data *sdata = link->sdata; 4784 4785 sdata_lock(sdata); 4786 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4787 sdata_unlock(sdata); 4788 } 4789 ieee80211_color_change_finish(struct ieee80211_vif * vif)4790 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4791 { 4792 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4793 4794 ieee80211_queue_work(&sdata->local->hw, 4795 &sdata->deflink.color_change_finalize_work); 4796 } 4797 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4798 4799 void ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,gfp_t gfp)4800 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4801 u64 color_bitmap, gfp_t gfp) 4802 { 4803 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4804 struct ieee80211_link_data *link = &sdata->deflink; 4805 4806 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4807 return; 4808 4809 if (delayed_work_pending(&link->color_collision_detect_work)) 4810 return; 4811 4812 link->color_bitmap = color_bitmap; 4813 /* queue the color collision detection event every 500 ms in order to 4814 * avoid sending too much netlink messages to userspace. 4815 */ 4816 ieee80211_queue_delayed_work(&sdata->local->hw, 4817 &link->color_collision_detect_work, 4818 msecs_to_jiffies(500)); 4819 } 4820 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4821 4822 static int ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4823 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4824 struct cfg80211_color_change_settings *params) 4825 { 4826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4827 struct ieee80211_local *local = sdata->local; 4828 u64 changed = 0; 4829 int err; 4830 4831 sdata_assert_lock(sdata); 4832 4833 if (sdata->vif.bss_conf.nontransmitted) 4834 return -EINVAL; 4835 4836 mutex_lock(&local->mtx); 4837 4838 /* don't allow another color change if one is already active or if csa 4839 * is active 4840 */ 4841 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4842 err = -EBUSY; 4843 goto out; 4844 } 4845 4846 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4847 if (err) 4848 goto out; 4849 4850 sdata->vif.bss_conf.color_change_active = true; 4851 sdata->vif.bss_conf.color_change_color = params->color; 4852 4853 cfg80211_color_change_started_notify(sdata->dev, params->count); 4854 4855 if (changed) 4856 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4857 else 4858 /* if the beacon didn't change, we can finalize immediately */ 4859 ieee80211_color_change_finalize(sdata); 4860 4861 out: 4862 mutex_unlock(&local->mtx); 4863 4864 return err; 4865 } 4866 4867 static int ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)4868 ieee80211_set_radar_background(struct wiphy *wiphy, 4869 struct cfg80211_chan_def *chandef) 4870 { 4871 struct ieee80211_local *local = wiphy_priv(wiphy); 4872 4873 if (!local->ops->set_radar_background) 4874 return -EOPNOTSUPP; 4875 4876 return local->ops->set_radar_background(&local->hw, chandef); 4877 } 4878 ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4879 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4880 struct wireless_dev *wdev, 4881 unsigned int link_id) 4882 { 4883 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4884 int res; 4885 4886 if (wdev->use_4addr) 4887 return -EOPNOTSUPP; 4888 4889 mutex_lock(&sdata->local->mtx); 4890 res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4891 mutex_unlock(&sdata->local->mtx); 4892 4893 return res; 4894 } 4895 ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4896 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4897 struct wireless_dev *wdev, 4898 unsigned int link_id) 4899 { 4900 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4901 4902 mutex_lock(&sdata->local->mtx); 4903 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4904 mutex_unlock(&sdata->local->mtx); 4905 } 4906 sta_add_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4907 static int sta_add_link_station(struct ieee80211_local *local, 4908 struct ieee80211_sub_if_data *sdata, 4909 struct link_station_parameters *params) 4910 { 4911 struct sta_info *sta; 4912 int ret; 4913 4914 sta = sta_info_get_bss(sdata, params->mld_mac); 4915 if (!sta) 4916 return -ENOENT; 4917 4918 if (!sta->sta.valid_links) 4919 return -EINVAL; 4920 4921 if (sta->sta.valid_links & BIT(params->link_id)) 4922 return -EALREADY; 4923 4924 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4925 if (ret) 4926 return ret; 4927 4928 ret = sta_link_apply_parameters(local, sta, true, params); 4929 if (ret) { 4930 ieee80211_sta_free_link(sta, params->link_id); 4931 return ret; 4932 } 4933 4934 /* ieee80211_sta_activate_link frees the link upon failure */ 4935 return ieee80211_sta_activate_link(sta, params->link_id); 4936 } 4937 4938 static int ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4939 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4940 struct link_station_parameters *params) 4941 { 4942 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4943 struct ieee80211_local *local = wiphy_priv(wiphy); 4944 int ret; 4945 4946 mutex_lock(&sdata->local->sta_mtx); 4947 ret = sta_add_link_station(local, sdata, params); 4948 mutex_unlock(&sdata->local->sta_mtx); 4949 4950 return ret; 4951 } 4952 sta_mod_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4953 static int sta_mod_link_station(struct ieee80211_local *local, 4954 struct ieee80211_sub_if_data *sdata, 4955 struct link_station_parameters *params) 4956 { 4957 struct sta_info *sta; 4958 4959 sta = sta_info_get_bss(sdata, params->mld_mac); 4960 if (!sta) 4961 return -ENOENT; 4962 4963 if (!(sta->sta.valid_links & BIT(params->link_id))) 4964 return -EINVAL; 4965 4966 return sta_link_apply_parameters(local, sta, false, params); 4967 } 4968 4969 static int ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4970 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4971 struct link_station_parameters *params) 4972 { 4973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4974 struct ieee80211_local *local = wiphy_priv(wiphy); 4975 int ret; 4976 4977 mutex_lock(&sdata->local->sta_mtx); 4978 ret = sta_mod_link_station(local, sdata, params); 4979 mutex_unlock(&sdata->local->sta_mtx); 4980 4981 return ret; 4982 } 4983 sta_del_link_station(struct ieee80211_sub_if_data * sdata,struct link_station_del_parameters * params)4984 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4985 struct link_station_del_parameters *params) 4986 { 4987 struct sta_info *sta; 4988 4989 sta = sta_info_get_bss(sdata, params->mld_mac); 4990 if (!sta) 4991 return -ENOENT; 4992 4993 if (!(sta->sta.valid_links & BIT(params->link_id))) 4994 return -EINVAL; 4995 4996 /* must not create a STA without links */ 4997 if (sta->sta.valid_links == BIT(params->link_id)) 4998 return -EINVAL; 4999 5000 ieee80211_sta_remove_link(sta, params->link_id); 5001 5002 return 0; 5003 } 5004 5005 static int ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)5006 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5007 struct link_station_del_parameters *params) 5008 { 5009 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5010 int ret; 5011 5012 mutex_lock(&sdata->local->sta_mtx); 5013 ret = sta_del_link_station(sdata, params); 5014 mutex_unlock(&sdata->local->sta_mtx); 5015 5016 return ret; 5017 } 5018 ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5019 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5020 struct net_device *dev, 5021 struct cfg80211_set_hw_timestamp *hwts) 5022 { 5023 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5024 struct ieee80211_local *local = sdata->local; 5025 5026 if (!local->ops->set_hw_timestamp) 5027 return -EOPNOTSUPP; 5028 5029 if (!check_sdata_in_driver(sdata)) 5030 return -EIO; 5031 5032 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5033 } 5034 5035 const struct cfg80211_ops mac80211_config_ops = { 5036 .add_virtual_intf = ieee80211_add_iface, 5037 .del_virtual_intf = ieee80211_del_iface, 5038 .change_virtual_intf = ieee80211_change_iface, 5039 .start_p2p_device = ieee80211_start_p2p_device, 5040 .stop_p2p_device = ieee80211_stop_p2p_device, 5041 .add_key = ieee80211_add_key, 5042 .del_key = ieee80211_del_key, 5043 .get_key = ieee80211_get_key, 5044 .set_default_key = ieee80211_config_default_key, 5045 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5046 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5047 .start_ap = ieee80211_start_ap, 5048 .change_beacon = ieee80211_change_beacon, 5049 .stop_ap = ieee80211_stop_ap, 5050 .add_station = ieee80211_add_station, 5051 .del_station = ieee80211_del_station, 5052 .change_station = ieee80211_change_station, 5053 .get_station = ieee80211_get_station, 5054 .dump_station = ieee80211_dump_station, 5055 .dump_survey = ieee80211_dump_survey, 5056 #ifdef CONFIG_MAC80211_MESH 5057 .add_mpath = ieee80211_add_mpath, 5058 .del_mpath = ieee80211_del_mpath, 5059 .change_mpath = ieee80211_change_mpath, 5060 .get_mpath = ieee80211_get_mpath, 5061 .dump_mpath = ieee80211_dump_mpath, 5062 .get_mpp = ieee80211_get_mpp, 5063 .dump_mpp = ieee80211_dump_mpp, 5064 .update_mesh_config = ieee80211_update_mesh_config, 5065 .get_mesh_config = ieee80211_get_mesh_config, 5066 .join_mesh = ieee80211_join_mesh, 5067 .leave_mesh = ieee80211_leave_mesh, 5068 #endif 5069 .join_ocb = ieee80211_join_ocb, 5070 .leave_ocb = ieee80211_leave_ocb, 5071 .change_bss = ieee80211_change_bss, 5072 .inform_bss = ieee80211_inform_bss, 5073 .set_txq_params = ieee80211_set_txq_params, 5074 .set_monitor_channel = ieee80211_set_monitor_channel, 5075 .suspend = ieee80211_suspend, 5076 .resume = ieee80211_resume, 5077 .scan = ieee80211_scan, 5078 .abort_scan = ieee80211_abort_scan, 5079 .sched_scan_start = ieee80211_sched_scan_start, 5080 .sched_scan_stop = ieee80211_sched_scan_stop, 5081 .auth = ieee80211_auth, 5082 .assoc = ieee80211_assoc, 5083 .deauth = ieee80211_deauth, 5084 .disassoc = ieee80211_disassoc, 5085 .join_ibss = ieee80211_join_ibss, 5086 .leave_ibss = ieee80211_leave_ibss, 5087 .set_mcast_rate = ieee80211_set_mcast_rate, 5088 .set_wiphy_params = ieee80211_set_wiphy_params, 5089 .set_tx_power = ieee80211_set_tx_power, 5090 .get_tx_power = ieee80211_get_tx_power, 5091 .rfkill_poll = ieee80211_rfkill_poll, 5092 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5093 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5094 .set_power_mgmt = ieee80211_set_power_mgmt, 5095 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5096 .remain_on_channel = ieee80211_remain_on_channel, 5097 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5098 .mgmt_tx = ieee80211_mgmt_tx, 5099 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5100 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5101 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5102 .update_mgmt_frame_registrations = 5103 ieee80211_update_mgmt_frame_registrations, 5104 .set_antenna = ieee80211_set_antenna, 5105 .get_antenna = ieee80211_get_antenna, 5106 .set_rekey_data = ieee80211_set_rekey_data, 5107 .tdls_oper = ieee80211_tdls_oper, 5108 .tdls_mgmt = ieee80211_tdls_mgmt, 5109 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5110 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5111 .probe_client = ieee80211_probe_client, 5112 .set_noack_map = ieee80211_set_noack_map, 5113 #ifdef CONFIG_PM 5114 .set_wakeup = ieee80211_set_wakeup, 5115 #endif 5116 .get_channel = ieee80211_cfg_get_channel, 5117 .start_radar_detection = ieee80211_start_radar_detection, 5118 .end_cac = ieee80211_end_cac, 5119 .channel_switch = ieee80211_channel_switch, 5120 .set_qos_map = ieee80211_set_qos_map, 5121 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5122 .add_tx_ts = ieee80211_add_tx_ts, 5123 .del_tx_ts = ieee80211_del_tx_ts, 5124 .start_nan = ieee80211_start_nan, 5125 .stop_nan = ieee80211_stop_nan, 5126 .nan_change_conf = ieee80211_nan_change_conf, 5127 .add_nan_func = ieee80211_add_nan_func, 5128 .del_nan_func = ieee80211_del_nan_func, 5129 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5130 .tx_control_port = ieee80211_tx_control_port, 5131 .get_txq_stats = ieee80211_get_txq_stats, 5132 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5133 .start_pmsr = ieee80211_start_pmsr, 5134 .abort_pmsr = ieee80211_abort_pmsr, 5135 .probe_mesh_link = ieee80211_probe_mesh_link, 5136 .set_tid_config = ieee80211_set_tid_config, 5137 .reset_tid_config = ieee80211_reset_tid_config, 5138 .set_sar_specs = ieee80211_set_sar_specs, 5139 .color_change = ieee80211_color_change, 5140 .set_radar_background = ieee80211_set_radar_background, 5141 .add_intf_link = ieee80211_add_intf_link, 5142 .del_intf_link = ieee80211_del_intf_link, 5143 .add_link_station = ieee80211_add_link_station, 5144 .mod_link_station = ieee80211_mod_link_station, 5145 .del_link_station = ieee80211_del_link_station, 5146 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5147 }; 5148