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 * 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 && sdata->vif.valid_links) 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 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 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 } 139 140 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 } 171 172 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 } 199 200 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 } 206 207 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 (sdata->vif.valid_links) 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 } 257 258 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 } 272 273 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 } 278 279 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 } 304 305 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 } 313 314 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 } 343 344 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 * 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 } 398 399 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 } 421 422 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 } 434 435 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 } 464 465 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); 569 570 out_unlock: 571 mutex_unlock(&local->sta_mtx); 572 573 return err; 574 } 575 576 static struct ieee80211_key * 577 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 578 u8 key_idx, bool pairwise, const u8 *mac_addr) 579 { 580 struct ieee80211_local *local __maybe_unused = sdata->local; 581 struct ieee80211_link_data *link = &sdata->deflink; 582 struct ieee80211_key *key; 583 584 if (link_id >= 0) { 585 link = rcu_dereference_check(sdata->link[link_id], 586 lockdep_is_held(&sdata->wdev.mtx)); 587 if (!link) 588 return NULL; 589 } 590 591 if (mac_addr) { 592 struct sta_info *sta; 593 struct link_sta_info *link_sta; 594 595 sta = sta_info_get_bss(sdata, mac_addr); 596 if (!sta) 597 return NULL; 598 599 if (link_id >= 0) { 600 link_sta = rcu_dereference_check(sta->link[link_id], 601 lockdep_is_held(&local->sta_mtx)); 602 if (!link_sta) 603 return NULL; 604 } else { 605 link_sta = &sta->deflink; 606 } 607 608 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 609 return rcu_dereference_check_key_mtx(local, 610 sta->ptk[key_idx]); 611 612 if (!pairwise && 613 key_idx < NUM_DEFAULT_KEYS + 614 NUM_DEFAULT_MGMT_KEYS + 615 NUM_DEFAULT_BEACON_KEYS) 616 return rcu_dereference_check_key_mtx(local, 617 link_sta->gtk[key_idx]); 618 619 return NULL; 620 } 621 622 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 623 return rcu_dereference_check_key_mtx(local, 624 sdata->keys[key_idx]); 625 626 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 627 if (key) 628 return key; 629 630 /* or maybe it was a WEP key */ 631 if (key_idx < NUM_DEFAULT_KEYS) 632 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 633 634 return NULL; 635 } 636 637 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 638 int link_id, u8 key_idx, bool pairwise, 639 const u8 *mac_addr) 640 { 641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 642 struct ieee80211_local *local = sdata->local; 643 struct ieee80211_key *key; 644 int ret; 645 646 mutex_lock(&local->sta_mtx); 647 mutex_lock(&local->key_mtx); 648 649 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 650 if (!key) { 651 ret = -ENOENT; 652 goto out_unlock; 653 } 654 655 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 656 657 ret = 0; 658 out_unlock: 659 mutex_unlock(&local->key_mtx); 660 mutex_unlock(&local->sta_mtx); 661 662 return ret; 663 } 664 665 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 666 int link_id, u8 key_idx, bool pairwise, 667 const u8 *mac_addr, void *cookie, 668 void (*callback)(void *cookie, 669 struct key_params *params)) 670 { 671 struct ieee80211_sub_if_data *sdata; 672 u8 seq[6] = {0}; 673 struct key_params params; 674 struct ieee80211_key *key; 675 u64 pn64; 676 u32 iv32; 677 u16 iv16; 678 int err = -ENOENT; 679 struct ieee80211_key_seq kseq = {}; 680 681 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 682 683 rcu_read_lock(); 684 685 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 686 if (!key) 687 goto out; 688 689 memset(¶ms, 0, sizeof(params)); 690 691 params.cipher = key->conf.cipher; 692 693 switch (key->conf.cipher) { 694 case WLAN_CIPHER_SUITE_TKIP: 695 pn64 = atomic64_read(&key->conf.tx_pn); 696 iv32 = TKIP_PN_TO_IV32(pn64); 697 iv16 = TKIP_PN_TO_IV16(pn64); 698 699 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 700 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 701 drv_get_key_seq(sdata->local, key, &kseq); 702 iv32 = kseq.tkip.iv32; 703 iv16 = kseq.tkip.iv16; 704 } 705 706 seq[0] = iv16 & 0xff; 707 seq[1] = (iv16 >> 8) & 0xff; 708 seq[2] = iv32 & 0xff; 709 seq[3] = (iv32 >> 8) & 0xff; 710 seq[4] = (iv32 >> 16) & 0xff; 711 seq[5] = (iv32 >> 24) & 0xff; 712 params.seq = seq; 713 params.seq_len = 6; 714 break; 715 case WLAN_CIPHER_SUITE_CCMP: 716 case WLAN_CIPHER_SUITE_CCMP_256: 717 case WLAN_CIPHER_SUITE_AES_CMAC: 718 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 719 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 720 offsetof(typeof(kseq), aes_cmac)); 721 fallthrough; 722 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 723 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 724 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 725 offsetof(typeof(kseq), aes_gmac)); 726 fallthrough; 727 case WLAN_CIPHER_SUITE_GCMP: 728 case WLAN_CIPHER_SUITE_GCMP_256: 729 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 730 offsetof(typeof(kseq), gcmp)); 731 732 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 733 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 734 drv_get_key_seq(sdata->local, key, &kseq); 735 memcpy(seq, kseq.ccmp.pn, 6); 736 } else { 737 pn64 = atomic64_read(&key->conf.tx_pn); 738 seq[0] = pn64; 739 seq[1] = pn64 >> 8; 740 seq[2] = pn64 >> 16; 741 seq[3] = pn64 >> 24; 742 seq[4] = pn64 >> 32; 743 seq[5] = pn64 >> 40; 744 } 745 params.seq = seq; 746 params.seq_len = 6; 747 break; 748 default: 749 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 750 break; 751 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 752 break; 753 drv_get_key_seq(sdata->local, key, &kseq); 754 params.seq = kseq.hw.seq; 755 params.seq_len = kseq.hw.seq_len; 756 break; 757 } 758 759 params.key = key->conf.key; 760 params.key_len = key->conf.keylen; 761 762 callback(cookie, ¶ms); 763 err = 0; 764 765 out: 766 rcu_read_unlock(); 767 return err; 768 } 769 770 static int ieee80211_config_default_key(struct wiphy *wiphy, 771 struct net_device *dev, 772 int link_id, u8 key_idx, bool uni, 773 bool multi) 774 { 775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 776 struct ieee80211_link_data *link = 777 ieee80211_link_or_deflink(sdata, link_id, false); 778 779 if (IS_ERR(link)) 780 return PTR_ERR(link); 781 782 ieee80211_set_default_key(link, key_idx, uni, multi); 783 784 return 0; 785 } 786 787 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 788 struct net_device *dev, 789 int link_id, u8 key_idx) 790 { 791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 792 struct ieee80211_link_data *link = 793 ieee80211_link_or_deflink(sdata, link_id, true); 794 795 if (IS_ERR(link)) 796 return PTR_ERR(link); 797 798 ieee80211_set_default_mgmt_key(link, key_idx); 799 800 return 0; 801 } 802 803 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 804 struct net_device *dev, 805 int link_id, u8 key_idx) 806 { 807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 808 struct ieee80211_link_data *link = 809 ieee80211_link_or_deflink(sdata, link_id, true); 810 811 if (IS_ERR(link)) 812 return PTR_ERR(link); 813 814 ieee80211_set_default_beacon_key(link, key_idx); 815 816 return 0; 817 } 818 819 void sta_set_rate_info_tx(struct sta_info *sta, 820 const struct ieee80211_tx_rate *rate, 821 struct rate_info *rinfo) 822 { 823 rinfo->flags = 0; 824 if (rate->flags & IEEE80211_TX_RC_MCS) { 825 rinfo->flags |= RATE_INFO_FLAGS_MCS; 826 rinfo->mcs = rate->idx; 827 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 829 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 830 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 831 } else { 832 struct ieee80211_supported_band *sband; 833 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 834 u16 brate; 835 836 sband = ieee80211_get_sband(sta->sdata); 837 WARN_ON_ONCE(sband && !sband->bitrates); 838 if (sband && sband->bitrates) { 839 brate = sband->bitrates[rate->idx].bitrate; 840 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 841 } 842 } 843 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 844 rinfo->bw = RATE_INFO_BW_40; 845 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 846 rinfo->bw = RATE_INFO_BW_80; 847 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 848 rinfo->bw = RATE_INFO_BW_160; 849 else 850 rinfo->bw = RATE_INFO_BW_20; 851 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 852 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 853 } 854 855 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 856 int idx, u8 *mac, struct station_info *sinfo) 857 { 858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 859 struct ieee80211_local *local = sdata->local; 860 struct sta_info *sta; 861 int ret = -ENOENT; 862 863 mutex_lock(&local->sta_mtx); 864 865 sta = sta_info_get_by_idx(sdata, idx); 866 if (sta) { 867 ret = 0; 868 memcpy(mac, sta->sta.addr, ETH_ALEN); 869 sta_set_sinfo(sta, sinfo, true); 870 } 871 872 mutex_unlock(&local->sta_mtx); 873 874 return ret; 875 } 876 877 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 878 int idx, struct survey_info *survey) 879 { 880 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 881 882 return drv_get_survey(local, idx, survey); 883 } 884 885 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 886 const u8 *mac, struct station_info *sinfo) 887 { 888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 889 struct ieee80211_local *local = sdata->local; 890 struct sta_info *sta; 891 int ret = -ENOENT; 892 893 mutex_lock(&local->sta_mtx); 894 895 sta = sta_info_get_bss(sdata, mac); 896 if (sta) { 897 ret = 0; 898 sta_set_sinfo(sta, sinfo, true); 899 } 900 901 mutex_unlock(&local->sta_mtx); 902 903 return ret; 904 } 905 906 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 907 struct cfg80211_chan_def *chandef) 908 { 909 struct ieee80211_local *local = wiphy_priv(wiphy); 910 struct ieee80211_sub_if_data *sdata; 911 int ret = 0; 912 913 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 914 return 0; 915 916 mutex_lock(&local->mtx); 917 if (local->use_chanctx) { 918 sdata = wiphy_dereference(local->hw.wiphy, 919 local->monitor_sdata); 920 if (sdata) { 921 ieee80211_link_release_channel(&sdata->deflink); 922 ret = ieee80211_link_use_channel(&sdata->deflink, 923 chandef, 924 IEEE80211_CHANCTX_EXCLUSIVE); 925 } 926 } else if (local->open_count == local->monitors) { 927 local->_oper_chandef = *chandef; 928 ieee80211_hw_config(local, 0); 929 } 930 931 if (ret == 0) 932 local->monitor_chandef = *chandef; 933 mutex_unlock(&local->mtx); 934 935 return ret; 936 } 937 938 static int 939 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 940 const u8 *resp, size_t resp_len, 941 const struct ieee80211_csa_settings *csa, 942 const struct ieee80211_color_change_settings *cca, 943 struct ieee80211_link_data *link) 944 { 945 struct probe_resp *new, *old; 946 947 if (!resp || !resp_len) 948 return 1; 949 950 old = sdata_dereference(link->u.ap.probe_resp, sdata); 951 952 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 953 if (!new) 954 return -ENOMEM; 955 956 new->len = resp_len; 957 memcpy(new->data, resp, resp_len); 958 959 if (csa) 960 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 961 csa->n_counter_offsets_presp * 962 sizeof(new->cntdwn_counter_offsets[0])); 963 else if (cca) 964 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 965 966 rcu_assign_pointer(link->u.ap.probe_resp, new); 967 if (old) 968 kfree_rcu(old, rcu_head); 969 970 return 0; 971 } 972 973 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 974 struct cfg80211_fils_discovery *params, 975 struct ieee80211_link_data *link, 976 struct ieee80211_bss_conf *link_conf) 977 { 978 struct fils_discovery_data *new, *old = NULL; 979 struct ieee80211_fils_discovery *fd; 980 981 if (!params->tmpl || !params->tmpl_len) 982 return -EINVAL; 983 984 fd = &link_conf->fils_discovery; 985 fd->min_interval = params->min_interval; 986 fd->max_interval = params->max_interval; 987 988 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 989 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 990 if (!new) 991 return -ENOMEM; 992 new->len = params->tmpl_len; 993 memcpy(new->data, params->tmpl, params->tmpl_len); 994 rcu_assign_pointer(link->u.ap.fils_discovery, new); 995 996 if (old) 997 kfree_rcu(old, rcu_head); 998 999 return 0; 1000 } 1001 1002 static int 1003 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1004 struct cfg80211_unsol_bcast_probe_resp *params, 1005 struct ieee80211_link_data *link, 1006 struct ieee80211_bss_conf *link_conf) 1007 { 1008 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1009 1010 if (!params->tmpl || !params->tmpl_len) 1011 return -EINVAL; 1012 1013 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1014 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1015 if (!new) 1016 return -ENOMEM; 1017 new->len = params->tmpl_len; 1018 memcpy(new->data, params->tmpl, params->tmpl_len); 1019 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1020 1021 if (old) 1022 kfree_rcu(old, rcu_head); 1023 1024 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1025 1026 return 0; 1027 } 1028 1029 static int ieee80211_set_ftm_responder_params( 1030 struct ieee80211_sub_if_data *sdata, 1031 const u8 *lci, size_t lci_len, 1032 const u8 *civicloc, size_t civicloc_len, 1033 struct ieee80211_bss_conf *link_conf) 1034 { 1035 struct ieee80211_ftm_responder_params *new, *old; 1036 u8 *pos; 1037 int len; 1038 1039 if (!lci_len && !civicloc_len) 1040 return 0; 1041 1042 old = link_conf->ftmr_params; 1043 len = lci_len + civicloc_len; 1044 1045 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1046 if (!new) 1047 return -ENOMEM; 1048 1049 pos = (u8 *)(new + 1); 1050 if (lci_len) { 1051 new->lci_len = lci_len; 1052 new->lci = pos; 1053 memcpy(pos, lci, lci_len); 1054 pos += lci_len; 1055 } 1056 1057 if (civicloc_len) { 1058 new->civicloc_len = civicloc_len; 1059 new->civicloc = pos; 1060 memcpy(pos, civicloc, civicloc_len); 1061 pos += civicloc_len; 1062 } 1063 1064 link_conf->ftmr_params = new; 1065 kfree(old); 1066 1067 return 0; 1068 } 1069 1070 static int 1071 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1072 struct cfg80211_mbssid_elems *src) 1073 { 1074 int i, offset = 0; 1075 1076 for (i = 0; i < src->cnt; i++) { 1077 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1078 dst->elem[i].len = src->elem[i].len; 1079 dst->elem[i].data = pos + offset; 1080 offset += dst->elem[i].len; 1081 } 1082 dst->cnt = src->cnt; 1083 1084 return offset; 1085 } 1086 1087 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1088 struct ieee80211_link_data *link, 1089 struct cfg80211_beacon_data *params, 1090 const struct ieee80211_csa_settings *csa, 1091 const struct ieee80211_color_change_settings *cca) 1092 { 1093 struct cfg80211_mbssid_elems *mbssid = NULL; 1094 struct beacon_data *new, *old; 1095 int new_head_len, new_tail_len; 1096 int size, err; 1097 u32 changed = BSS_CHANGED_BEACON; 1098 struct ieee80211_bss_conf *link_conf = link->conf; 1099 1100 old = sdata_dereference(link->u.ap.beacon, sdata); 1101 1102 /* Need to have a beacon head if we don't have one yet */ 1103 if (!params->head && !old) 1104 return -EINVAL; 1105 1106 /* new or old head? */ 1107 if (params->head) 1108 new_head_len = params->head_len; 1109 else 1110 new_head_len = old->head_len; 1111 1112 /* new or old tail? */ 1113 if (params->tail || !old) 1114 /* params->tail_len will be zero for !params->tail */ 1115 new_tail_len = params->tail_len; 1116 else 1117 new_tail_len = old->tail_len; 1118 1119 size = sizeof(*new) + new_head_len + new_tail_len; 1120 1121 /* new or old multiple BSSID elements? */ 1122 if (params->mbssid_ies) { 1123 mbssid = params->mbssid_ies; 1124 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1125 size += ieee80211_get_mbssid_beacon_len(mbssid); 1126 } else if (old && old->mbssid_ies) { 1127 mbssid = old->mbssid_ies; 1128 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1129 size += ieee80211_get_mbssid_beacon_len(mbssid); 1130 } 1131 1132 new = kzalloc(size, GFP_KERNEL); 1133 if (!new) 1134 return -ENOMEM; 1135 1136 /* start filling the new info now */ 1137 1138 /* 1139 * pointers go into the block we allocated, 1140 * memory is | beacon_data | head | tail | mbssid_ies 1141 */ 1142 new->head = ((u8 *) new) + sizeof(*new); 1143 new->tail = new->head + new_head_len; 1144 new->head_len = new_head_len; 1145 new->tail_len = new_tail_len; 1146 /* copy in optional mbssid_ies */ 1147 if (mbssid) { 1148 u8 *pos = new->tail + new->tail_len; 1149 1150 new->mbssid_ies = (void *)pos; 1151 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1152 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1153 /* update bssid_indicator */ 1154 link_conf->bssid_indicator = 1155 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1156 } 1157 1158 if (csa) { 1159 new->cntdwn_current_counter = csa->count; 1160 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1161 csa->n_counter_offsets_beacon * 1162 sizeof(new->cntdwn_counter_offsets[0])); 1163 } else if (cca) { 1164 new->cntdwn_current_counter = cca->count; 1165 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1166 } 1167 1168 /* copy in head */ 1169 if (params->head) 1170 memcpy(new->head, params->head, new_head_len); 1171 else 1172 memcpy(new->head, old->head, new_head_len); 1173 1174 /* copy in optional tail */ 1175 if (params->tail) 1176 memcpy(new->tail, params->tail, new_tail_len); 1177 else 1178 if (old) 1179 memcpy(new->tail, old->tail, new_tail_len); 1180 1181 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1182 params->probe_resp_len, csa, cca, link); 1183 if (err < 0) { 1184 kfree(new); 1185 return err; 1186 } 1187 if (err == 0) 1188 changed |= BSS_CHANGED_AP_PROBE_RESP; 1189 1190 if (params->ftm_responder != -1) { 1191 link_conf->ftm_responder = params->ftm_responder; 1192 err = ieee80211_set_ftm_responder_params(sdata, 1193 params->lci, 1194 params->lci_len, 1195 params->civicloc, 1196 params->civicloc_len, 1197 link_conf); 1198 1199 if (err < 0) { 1200 kfree(new); 1201 return err; 1202 } 1203 1204 changed |= BSS_CHANGED_FTM_RESPONDER; 1205 } 1206 1207 rcu_assign_pointer(link->u.ap.beacon, new); 1208 sdata->u.ap.active = true; 1209 1210 if (old) 1211 kfree_rcu(old, rcu_head); 1212 1213 return changed; 1214 } 1215 1216 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1217 struct cfg80211_ap_settings *params) 1218 { 1219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1220 struct ieee80211_local *local = sdata->local; 1221 struct beacon_data *old; 1222 struct ieee80211_sub_if_data *vlan; 1223 u64 changed = BSS_CHANGED_BEACON_INT | 1224 BSS_CHANGED_BEACON_ENABLED | 1225 BSS_CHANGED_BEACON | 1226 BSS_CHANGED_P2P_PS | 1227 BSS_CHANGED_TXPOWER | 1228 BSS_CHANGED_TWT; 1229 int i, err; 1230 int prev_beacon_int; 1231 unsigned int link_id = params->beacon.link_id; 1232 struct ieee80211_link_data *link; 1233 struct ieee80211_bss_conf *link_conf; 1234 1235 link = sdata_dereference(sdata->link[link_id], sdata); 1236 if (!link) 1237 return -ENOLINK; 1238 1239 link_conf = link->conf; 1240 1241 old = sdata_dereference(link->u.ap.beacon, sdata); 1242 if (old) 1243 return -EALREADY; 1244 1245 if (params->smps_mode != NL80211_SMPS_OFF) 1246 return -ENOTSUPP; 1247 1248 link->smps_mode = IEEE80211_SMPS_OFF; 1249 1250 link->needed_rx_chains = sdata->local->rx_chains; 1251 1252 prev_beacon_int = link_conf->beacon_int; 1253 link_conf->beacon_int = params->beacon_interval; 1254 1255 if (params->vht_cap) { 1256 link_conf->vht_su_beamformer = 1257 params->vht_cap->vht_cap_info & 1258 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1259 link_conf->vht_su_beamformee = 1260 params->vht_cap->vht_cap_info & 1261 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1262 link_conf->vht_mu_beamformer = 1263 params->vht_cap->vht_cap_info & 1264 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1265 link_conf->vht_mu_beamformee = 1266 params->vht_cap->vht_cap_info & 1267 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1268 } 1269 1270 if (params->he_cap && params->he_oper) { 1271 link_conf->he_support = true; 1272 link_conf->htc_trig_based_pkt_ext = 1273 le32_get_bits(params->he_oper->he_oper_params, 1274 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1275 link_conf->frame_time_rts_th = 1276 le32_get_bits(params->he_oper->he_oper_params, 1277 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1278 changed |= BSS_CHANGED_HE_OBSS_PD; 1279 1280 if (params->beacon.he_bss_color.enabled) 1281 changed |= BSS_CHANGED_HE_BSS_COLOR; 1282 } 1283 1284 if (params->he_cap) { 1285 link_conf->he_su_beamformer = 1286 params->he_cap->phy_cap_info[3] & 1287 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1288 link_conf->he_su_beamformee = 1289 params->he_cap->phy_cap_info[4] & 1290 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1291 link_conf->he_mu_beamformer = 1292 params->he_cap->phy_cap_info[4] & 1293 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1294 link_conf->he_full_ul_mumimo = 1295 params->he_cap->phy_cap_info[2] & 1296 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1297 } 1298 1299 if (params->eht_cap) { 1300 link_conf->eht_puncturing = params->punct_bitmap; 1301 changed |= BSS_CHANGED_EHT_PUNCTURING; 1302 } 1303 1304 if (sdata->vif.type == NL80211_IFTYPE_AP && 1305 params->mbssid_config.tx_wdev) { 1306 err = ieee80211_set_ap_mbssid_options(sdata, 1307 params->mbssid_config, 1308 link_conf); 1309 if (err) 1310 return err; 1311 } 1312 1313 mutex_lock(&local->mtx); 1314 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1315 IEEE80211_CHANCTX_SHARED); 1316 if (!err) 1317 ieee80211_link_copy_chanctx_to_vlans(link, false); 1318 mutex_unlock(&local->mtx); 1319 if (err) { 1320 link_conf->beacon_int = prev_beacon_int; 1321 return err; 1322 } 1323 1324 /* 1325 * Apply control port protocol, this allows us to 1326 * not encrypt dynamic WEP control frames. 1327 */ 1328 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1329 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1330 sdata->control_port_over_nl80211 = 1331 params->crypto.control_port_over_nl80211; 1332 sdata->control_port_no_preauth = 1333 params->crypto.control_port_no_preauth; 1334 1335 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1336 vlan->control_port_protocol = 1337 params->crypto.control_port_ethertype; 1338 vlan->control_port_no_encrypt = 1339 params->crypto.control_port_no_encrypt; 1340 vlan->control_port_over_nl80211 = 1341 params->crypto.control_port_over_nl80211; 1342 vlan->control_port_no_preauth = 1343 params->crypto.control_port_no_preauth; 1344 } 1345 1346 link_conf->dtim_period = params->dtim_period; 1347 link_conf->enable_beacon = true; 1348 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1349 link_conf->twt_responder = params->twt_responder; 1350 link_conf->he_obss_pd = params->he_obss_pd; 1351 link_conf->he_bss_color = params->beacon.he_bss_color; 1352 sdata->vif.cfg.s1g = params->chandef.chan->band == 1353 NL80211_BAND_S1GHZ; 1354 1355 sdata->vif.cfg.ssid_len = params->ssid_len; 1356 if (params->ssid_len) 1357 memcpy(sdata->vif.cfg.ssid, params->ssid, 1358 params->ssid_len); 1359 link_conf->hidden_ssid = 1360 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1361 1362 memset(&link_conf->p2p_noa_attr, 0, 1363 sizeof(link_conf->p2p_noa_attr)); 1364 link_conf->p2p_noa_attr.oppps_ctwindow = 1365 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1366 if (params->p2p_opp_ps) 1367 link_conf->p2p_noa_attr.oppps_ctwindow |= 1368 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1369 1370 sdata->beacon_rate_set = false; 1371 if (wiphy_ext_feature_isset(local->hw.wiphy, 1372 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1373 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1374 sdata->beacon_rateidx_mask[i] = 1375 params->beacon_rate.control[i].legacy; 1376 if (sdata->beacon_rateidx_mask[i]) 1377 sdata->beacon_rate_set = true; 1378 } 1379 } 1380 1381 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1382 link_conf->beacon_tx_rate = params->beacon_rate; 1383 1384 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); 1385 if (err < 0) 1386 goto error; 1387 changed |= err; 1388 1389 if (params->fils_discovery.max_interval) { 1390 err = ieee80211_set_fils_discovery(sdata, 1391 ¶ms->fils_discovery, 1392 link, link_conf); 1393 if (err < 0) 1394 goto error; 1395 changed |= BSS_CHANGED_FILS_DISCOVERY; 1396 } 1397 1398 if (params->unsol_bcast_probe_resp.interval) { 1399 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1400 ¶ms->unsol_bcast_probe_resp, 1401 link, link_conf); 1402 if (err < 0) 1403 goto error; 1404 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1405 } 1406 1407 err = drv_start_ap(sdata->local, sdata, link_conf); 1408 if (err) { 1409 old = sdata_dereference(link->u.ap.beacon, sdata); 1410 1411 if (old) 1412 kfree_rcu(old, rcu_head); 1413 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1414 sdata->u.ap.active = false; 1415 goto error; 1416 } 1417 1418 ieee80211_recalc_dtim(local, sdata); 1419 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1420 ieee80211_link_info_change_notify(sdata, link, changed); 1421 1422 netif_carrier_on(dev); 1423 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1424 netif_carrier_on(vlan->dev); 1425 1426 return 0; 1427 1428 error: 1429 mutex_lock(&local->mtx); 1430 ieee80211_link_release_channel(link); 1431 mutex_unlock(&local->mtx); 1432 1433 return err; 1434 } 1435 1436 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1437 struct cfg80211_beacon_data *params) 1438 { 1439 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1440 struct ieee80211_link_data *link; 1441 struct beacon_data *old; 1442 int err; 1443 struct ieee80211_bss_conf *link_conf; 1444 1445 sdata_assert_lock(sdata); 1446 1447 link = sdata_dereference(sdata->link[params->link_id], sdata); 1448 if (!link) 1449 return -ENOLINK; 1450 1451 link_conf = link->conf; 1452 1453 /* don't allow changing the beacon while a countdown is in place - offset 1454 * of channel switch counter may change 1455 */ 1456 if (link_conf->csa_active || link_conf->color_change_active) 1457 return -EBUSY; 1458 1459 old = sdata_dereference(link->u.ap.beacon, sdata); 1460 if (!old) 1461 return -ENOENT; 1462 1463 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); 1464 if (err < 0) 1465 return err; 1466 1467 if (params->he_bss_color_valid && 1468 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1469 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1470 err |= BSS_CHANGED_HE_BSS_COLOR; 1471 } 1472 1473 ieee80211_link_info_change_notify(sdata, link, err); 1474 return 0; 1475 } 1476 1477 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1478 { 1479 if (!link->u.ap.next_beacon) 1480 return; 1481 1482 kfree(link->u.ap.next_beacon->mbssid_ies); 1483 kfree(link->u.ap.next_beacon); 1484 link->u.ap.next_beacon = NULL; 1485 } 1486 1487 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1488 unsigned int link_id) 1489 { 1490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1491 struct ieee80211_sub_if_data *vlan; 1492 struct ieee80211_local *local = sdata->local; 1493 struct beacon_data *old_beacon; 1494 struct probe_resp *old_probe_resp; 1495 struct fils_discovery_data *old_fils_discovery; 1496 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1497 struct cfg80211_chan_def chandef; 1498 struct ieee80211_link_data *link = 1499 sdata_dereference(sdata->link[link_id], sdata); 1500 struct ieee80211_bss_conf *link_conf = link->conf; 1501 1502 sdata_assert_lock(sdata); 1503 1504 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1505 if (!old_beacon) 1506 return -ENOENT; 1507 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1508 sdata); 1509 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1510 sdata); 1511 old_unsol_bcast_probe_resp = 1512 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1513 sdata); 1514 1515 /* abort any running channel switch */ 1516 mutex_lock(&local->mtx); 1517 link_conf->csa_active = false; 1518 if (link->csa_block_tx) { 1519 ieee80211_wake_vif_queues(local, sdata, 1520 IEEE80211_QUEUE_STOP_REASON_CSA); 1521 link->csa_block_tx = false; 1522 } 1523 1524 mutex_unlock(&local->mtx); 1525 1526 ieee80211_free_next_beacon(link); 1527 1528 /* turn off carrier for this interface and dependent VLANs */ 1529 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1530 netif_carrier_off(vlan->dev); 1531 netif_carrier_off(dev); 1532 1533 /* remove beacon and probe response */ 1534 sdata->u.ap.active = false; 1535 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1536 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1537 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1538 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1539 kfree_rcu(old_beacon, rcu_head); 1540 if (old_probe_resp) 1541 kfree_rcu(old_probe_resp, rcu_head); 1542 if (old_fils_discovery) 1543 kfree_rcu(old_fils_discovery, rcu_head); 1544 if (old_unsol_bcast_probe_resp) 1545 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1546 1547 kfree(link_conf->ftmr_params); 1548 link_conf->ftmr_params = NULL; 1549 1550 sdata->vif.mbssid_tx_vif = NULL; 1551 link_conf->bssid_index = 0; 1552 link_conf->nontransmitted = false; 1553 link_conf->ema_ap = false; 1554 link_conf->bssid_indicator = 0; 1555 1556 __sta_info_flush(sdata, true); 1557 ieee80211_free_keys(sdata, true); 1558 1559 link_conf->enable_beacon = false; 1560 sdata->beacon_rate_set = false; 1561 sdata->vif.cfg.ssid_len = 0; 1562 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1563 ieee80211_link_info_change_notify(sdata, link, 1564 BSS_CHANGED_BEACON_ENABLED); 1565 1566 if (sdata->wdev.cac_started) { 1567 chandef = link_conf->chandef; 1568 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1569 cfg80211_cac_event(sdata->dev, &chandef, 1570 NL80211_RADAR_CAC_ABORTED, 1571 GFP_KERNEL); 1572 } 1573 1574 drv_stop_ap(sdata->local, sdata, link_conf); 1575 1576 /* free all potentially still buffered bcast frames */ 1577 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1578 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1579 1580 mutex_lock(&local->mtx); 1581 ieee80211_link_copy_chanctx_to_vlans(link, true); 1582 ieee80211_link_release_channel(link); 1583 mutex_unlock(&local->mtx); 1584 1585 return 0; 1586 } 1587 1588 static int sta_apply_auth_flags(struct ieee80211_local *local, 1589 struct sta_info *sta, 1590 u32 mask, u32 set) 1591 { 1592 int ret; 1593 1594 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1595 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1596 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1597 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1598 if (ret) 1599 return ret; 1600 } 1601 1602 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1603 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1604 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1605 /* 1606 * When peer becomes associated, init rate control as 1607 * well. Some drivers require rate control initialized 1608 * before drv_sta_state() is called. 1609 */ 1610 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1611 rate_control_rate_init(sta); 1612 1613 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1614 if (ret) 1615 return ret; 1616 } 1617 1618 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1619 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1620 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1621 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1622 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1623 else 1624 ret = 0; 1625 if (ret) 1626 return ret; 1627 } 1628 1629 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1630 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1631 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1632 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1633 if (ret) 1634 return ret; 1635 } 1636 1637 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1638 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1639 test_sta_flag(sta, WLAN_STA_AUTH)) { 1640 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1641 if (ret) 1642 return ret; 1643 } 1644 1645 return 0; 1646 } 1647 1648 static void sta_apply_mesh_params(struct ieee80211_local *local, 1649 struct sta_info *sta, 1650 struct station_parameters *params) 1651 { 1652 #ifdef CONFIG_MAC80211_MESH 1653 struct ieee80211_sub_if_data *sdata = sta->sdata; 1654 u32 changed = 0; 1655 1656 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1657 switch (params->plink_state) { 1658 case NL80211_PLINK_ESTAB: 1659 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1660 changed = mesh_plink_inc_estab_count(sdata); 1661 sta->mesh->plink_state = params->plink_state; 1662 sta->mesh->aid = params->peer_aid; 1663 1664 ieee80211_mps_sta_status_update(sta); 1665 changed |= ieee80211_mps_set_sta_local_pm(sta, 1666 sdata->u.mesh.mshcfg.power_mode); 1667 1668 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1669 /* init at low value */ 1670 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1671 1672 break; 1673 case NL80211_PLINK_LISTEN: 1674 case NL80211_PLINK_BLOCKED: 1675 case NL80211_PLINK_OPN_SNT: 1676 case NL80211_PLINK_OPN_RCVD: 1677 case NL80211_PLINK_CNF_RCVD: 1678 case NL80211_PLINK_HOLDING: 1679 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1680 changed = mesh_plink_dec_estab_count(sdata); 1681 sta->mesh->plink_state = params->plink_state; 1682 1683 ieee80211_mps_sta_status_update(sta); 1684 changed |= ieee80211_mps_set_sta_local_pm(sta, 1685 NL80211_MESH_POWER_UNKNOWN); 1686 break; 1687 default: 1688 /* nothing */ 1689 break; 1690 } 1691 } 1692 1693 switch (params->plink_action) { 1694 case NL80211_PLINK_ACTION_NO_ACTION: 1695 /* nothing */ 1696 break; 1697 case NL80211_PLINK_ACTION_OPEN: 1698 changed |= mesh_plink_open(sta); 1699 break; 1700 case NL80211_PLINK_ACTION_BLOCK: 1701 changed |= mesh_plink_block(sta); 1702 break; 1703 } 1704 1705 if (params->local_pm) 1706 changed |= ieee80211_mps_set_sta_local_pm(sta, 1707 params->local_pm); 1708 1709 ieee80211_mbss_info_change_notify(sdata, changed); 1710 #endif 1711 } 1712 1713 static int sta_link_apply_parameters(struct ieee80211_local *local, 1714 struct sta_info *sta, bool new_link, 1715 struct link_station_parameters *params) 1716 { 1717 int ret = 0; 1718 struct ieee80211_supported_band *sband; 1719 struct ieee80211_sub_if_data *sdata = sta->sdata; 1720 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1721 struct ieee80211_link_data *link = 1722 sdata_dereference(sdata->link[link_id], sdata); 1723 struct link_sta_info *link_sta = 1724 rcu_dereference_protected(sta->link[link_id], 1725 lockdep_is_held(&local->sta_mtx)); 1726 1727 /* 1728 * If there are no changes, then accept a link that doesn't exist, 1729 * unless it's a new link. 1730 */ 1731 if (params->link_id < 0 && !new_link && 1732 !params->link_mac && !params->txpwr_set && 1733 !params->supported_rates_len && 1734 !params->ht_capa && !params->vht_capa && 1735 !params->he_capa && !params->eht_capa && 1736 !params->opmode_notif_used) 1737 return 0; 1738 1739 if (!link || !link_sta) 1740 return -EINVAL; 1741 1742 sband = ieee80211_get_link_sband(link); 1743 if (!sband) 1744 return -EINVAL; 1745 1746 if (params->link_mac) { 1747 if (new_link) { 1748 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1749 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1750 } else if (!ether_addr_equal(link_sta->addr, 1751 params->link_mac)) { 1752 return -EINVAL; 1753 } 1754 } else if (new_link) { 1755 return -EINVAL; 1756 } 1757 1758 if (params->txpwr_set) { 1759 link_sta->pub->txpwr.type = params->txpwr.type; 1760 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1761 link_sta->pub->txpwr.power = params->txpwr.power; 1762 ret = drv_sta_set_txpwr(local, sdata, sta); 1763 if (ret) 1764 return ret; 1765 } 1766 1767 if (params->supported_rates && 1768 params->supported_rates_len) { 1769 ieee80211_parse_bitrates(link->conf->chandef.width, 1770 sband, params->supported_rates, 1771 params->supported_rates_len, 1772 &link_sta->pub->supp_rates[sband->band]); 1773 } 1774 1775 if (params->ht_capa) 1776 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1777 params->ht_capa, link_sta); 1778 1779 /* VHT can override some HT caps such as the A-MSDU max length */ 1780 if (params->vht_capa) 1781 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1782 params->vht_capa, link_sta); 1783 1784 if (params->he_capa) 1785 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1786 (void *)params->he_capa, 1787 params->he_capa_len, 1788 (void *)params->he_6ghz_capa, 1789 link_sta); 1790 1791 if (params->eht_capa) 1792 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1793 (u8 *)params->he_capa, 1794 params->he_capa_len, 1795 params->eht_capa, 1796 params->eht_capa_len, 1797 link_sta); 1798 1799 if (params->opmode_notif_used) { 1800 /* returned value is only needed for rc update, but the 1801 * rc isn't initialized here yet, so ignore it 1802 */ 1803 __ieee80211_vht_handle_opmode(sdata, link_sta, 1804 params->opmode_notif, 1805 sband->band); 1806 } 1807 1808 return ret; 1809 } 1810 1811 static int sta_apply_parameters(struct ieee80211_local *local, 1812 struct sta_info *sta, 1813 struct station_parameters *params) 1814 { 1815 struct ieee80211_sub_if_data *sdata = sta->sdata; 1816 u32 mask, set; 1817 int ret = 0; 1818 1819 mask = params->sta_flags_mask; 1820 set = params->sta_flags_set; 1821 1822 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1823 /* 1824 * In mesh mode, ASSOCIATED isn't part of the nl80211 1825 * API but must follow AUTHENTICATED for driver state. 1826 */ 1827 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1828 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1829 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1830 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1831 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1832 /* 1833 * TDLS -- everything follows authorized, but 1834 * only becoming authorized is possible, not 1835 * going back 1836 */ 1837 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1838 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1839 BIT(NL80211_STA_FLAG_ASSOCIATED); 1840 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1841 BIT(NL80211_STA_FLAG_ASSOCIATED); 1842 } 1843 } 1844 1845 if (mask & BIT(NL80211_STA_FLAG_WME) && 1846 local->hw.queues >= IEEE80211_NUM_ACS) 1847 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1848 1849 /* auth flags will be set later for TDLS, 1850 * and for unassociated stations that move to associated */ 1851 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1852 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1853 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1854 ret = sta_apply_auth_flags(local, sta, mask, set); 1855 if (ret) 1856 return ret; 1857 } 1858 1859 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1860 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1861 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1862 else 1863 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1864 } 1865 1866 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1867 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1868 if (set & BIT(NL80211_STA_FLAG_MFP)) 1869 set_sta_flag(sta, WLAN_STA_MFP); 1870 else 1871 clear_sta_flag(sta, WLAN_STA_MFP); 1872 } 1873 1874 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1875 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1876 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1877 else 1878 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1879 } 1880 1881 /* mark TDLS channel switch support, if the AP allows it */ 1882 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1883 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1884 params->ext_capab_len >= 4 && 1885 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1886 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1887 1888 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1889 !sdata->u.mgd.tdls_wider_bw_prohibited && 1890 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1891 params->ext_capab_len >= 8 && 1892 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1893 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1894 1895 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1896 sta->sta.uapsd_queues = params->uapsd_queues; 1897 sta->sta.max_sp = params->max_sp; 1898 } 1899 1900 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1901 params->ext_capab_len); 1902 1903 /* 1904 * cfg80211 validates this (1-2007) and allows setting the AID 1905 * only when creating a new station entry 1906 */ 1907 if (params->aid) 1908 sta->sta.aid = params->aid; 1909 1910 /* 1911 * Some of the following updates would be racy if called on an 1912 * existing station, via ieee80211_change_station(). However, 1913 * all such changes are rejected by cfg80211 except for updates 1914 * changing the supported rates on an existing but not yet used 1915 * TDLS peer. 1916 */ 1917 1918 if (params->listen_interval >= 0) 1919 sta->listen_interval = params->listen_interval; 1920 1921 ret = sta_link_apply_parameters(local, sta, false, 1922 ¶ms->link_sta_params); 1923 if (ret) 1924 return ret; 1925 1926 if (params->support_p2p_ps >= 0) 1927 sta->sta.support_p2p_ps = params->support_p2p_ps; 1928 1929 if (ieee80211_vif_is_mesh(&sdata->vif)) 1930 sta_apply_mesh_params(local, sta, params); 1931 1932 if (params->airtime_weight) 1933 sta->airtime_weight = params->airtime_weight; 1934 1935 /* set the STA state after all sta info from usermode has been set */ 1936 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1937 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1938 ret = sta_apply_auth_flags(local, sta, mask, set); 1939 if (ret) 1940 return ret; 1941 } 1942 1943 /* Mark the STA as MLO if MLD MAC address is available */ 1944 if (params->link_sta_params.mld_mac) 1945 sta->sta.mlo = true; 1946 1947 return 0; 1948 } 1949 1950 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1951 const u8 *mac, 1952 struct station_parameters *params) 1953 { 1954 struct ieee80211_local *local = wiphy_priv(wiphy); 1955 struct sta_info *sta; 1956 struct ieee80211_sub_if_data *sdata; 1957 int err; 1958 1959 if (params->vlan) { 1960 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1961 1962 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1963 sdata->vif.type != NL80211_IFTYPE_AP) 1964 return -EINVAL; 1965 } else 1966 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1967 1968 if (ether_addr_equal(mac, sdata->vif.addr)) 1969 return -EINVAL; 1970 1971 if (!is_valid_ether_addr(mac)) 1972 return -EINVAL; 1973 1974 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1975 sdata->vif.type == NL80211_IFTYPE_STATION && 1976 !sdata->u.mgd.associated) 1977 return -EINVAL; 1978 1979 /* 1980 * If we have a link ID, it can be a non-MLO station on an AP MLD, 1981 * but we need to have a link_mac in that case as well, so use the 1982 * STA's MAC address in that case. 1983 */ 1984 if (params->link_sta_params.link_id >= 0) 1985 sta = sta_info_alloc_with_link(sdata, mac, 1986 params->link_sta_params.link_id, 1987 params->link_sta_params.link_mac ?: mac, 1988 GFP_KERNEL); 1989 else 1990 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1991 1992 if (!sta) 1993 return -ENOMEM; 1994 1995 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1996 sta->sta.tdls = true; 1997 1998 /* Though the mutex is not needed here (since the station is not 1999 * visible yet), sta_apply_parameters (and inner functions) require 2000 * the mutex due to other paths. 2001 */ 2002 mutex_lock(&local->sta_mtx); 2003 err = sta_apply_parameters(local, sta, params); 2004 mutex_unlock(&local->sta_mtx); 2005 if (err) { 2006 sta_info_free(local, sta); 2007 return err; 2008 } 2009 2010 /* 2011 * for TDLS and for unassociated station, rate control should be 2012 * initialized only when rates are known and station is marked 2013 * authorized/associated 2014 */ 2015 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2016 test_sta_flag(sta, WLAN_STA_ASSOC)) 2017 rate_control_rate_init(sta); 2018 2019 return sta_info_insert(sta); 2020 } 2021 2022 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2023 struct station_del_parameters *params) 2024 { 2025 struct ieee80211_sub_if_data *sdata; 2026 2027 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2028 2029 if (params->mac) 2030 return sta_info_destroy_addr_bss(sdata, params->mac); 2031 2032 sta_info_flush(sdata); 2033 return 0; 2034 } 2035 2036 static int ieee80211_change_station(struct wiphy *wiphy, 2037 struct net_device *dev, const u8 *mac, 2038 struct station_parameters *params) 2039 { 2040 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2041 struct ieee80211_local *local = wiphy_priv(wiphy); 2042 struct sta_info *sta; 2043 struct ieee80211_sub_if_data *vlansdata; 2044 enum cfg80211_station_type statype; 2045 int err; 2046 2047 mutex_lock(&local->sta_mtx); 2048 2049 sta = sta_info_get_bss(sdata, mac); 2050 if (!sta) { 2051 err = -ENOENT; 2052 goto out_err; 2053 } 2054 2055 switch (sdata->vif.type) { 2056 case NL80211_IFTYPE_MESH_POINT: 2057 if (sdata->u.mesh.user_mpm) 2058 statype = CFG80211_STA_MESH_PEER_USER; 2059 else 2060 statype = CFG80211_STA_MESH_PEER_KERNEL; 2061 break; 2062 case NL80211_IFTYPE_ADHOC: 2063 statype = CFG80211_STA_IBSS; 2064 break; 2065 case NL80211_IFTYPE_STATION: 2066 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2067 statype = CFG80211_STA_AP_STA; 2068 break; 2069 } 2070 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2071 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2072 else 2073 statype = CFG80211_STA_TDLS_PEER_SETUP; 2074 break; 2075 case NL80211_IFTYPE_AP: 2076 case NL80211_IFTYPE_AP_VLAN: 2077 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2078 statype = CFG80211_STA_AP_CLIENT; 2079 else 2080 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2081 break; 2082 default: 2083 err = -EOPNOTSUPP; 2084 goto out_err; 2085 } 2086 2087 err = cfg80211_check_station_change(wiphy, params, statype); 2088 if (err) 2089 goto out_err; 2090 2091 if (params->vlan && params->vlan != sta->sdata->dev) { 2092 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2093 2094 if (params->vlan->ieee80211_ptr->use_4addr) { 2095 if (vlansdata->u.vlan.sta) { 2096 err = -EBUSY; 2097 goto out_err; 2098 } 2099 2100 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2101 __ieee80211_check_fast_rx_iface(vlansdata); 2102 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2103 } 2104 2105 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2106 sta->sdata->u.vlan.sta) { 2107 ieee80211_clear_fast_rx(sta); 2108 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2109 } 2110 2111 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2112 ieee80211_vif_dec_num_mcast(sta->sdata); 2113 2114 sta->sdata = vlansdata; 2115 ieee80211_check_fast_xmit(sta); 2116 2117 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2118 ieee80211_vif_inc_num_mcast(sta->sdata); 2119 cfg80211_send_layer2_update(sta->sdata->dev, 2120 sta->sta.addr); 2121 } 2122 } 2123 2124 /* we use sta_info_get_bss() so this might be different */ 2125 if (sdata != sta->sdata) { 2126 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2127 err = sta_apply_parameters(local, sta, params); 2128 mutex_unlock(&sta->sdata->wdev.mtx); 2129 } else { 2130 err = sta_apply_parameters(local, sta, params); 2131 } 2132 if (err) 2133 goto out_err; 2134 2135 mutex_unlock(&local->sta_mtx); 2136 2137 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2138 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2139 ieee80211_recalc_ps(local); 2140 ieee80211_recalc_ps_vif(sdata); 2141 } 2142 2143 return 0; 2144 out_err: 2145 mutex_unlock(&local->sta_mtx); 2146 return err; 2147 } 2148 2149 #ifdef CONFIG_MAC80211_MESH 2150 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2151 const u8 *dst, const u8 *next_hop) 2152 { 2153 struct ieee80211_sub_if_data *sdata; 2154 struct mesh_path *mpath; 2155 struct sta_info *sta; 2156 2157 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2158 2159 rcu_read_lock(); 2160 sta = sta_info_get(sdata, next_hop); 2161 if (!sta) { 2162 rcu_read_unlock(); 2163 return -ENOENT; 2164 } 2165 2166 mpath = mesh_path_add(sdata, dst); 2167 if (IS_ERR(mpath)) { 2168 rcu_read_unlock(); 2169 return PTR_ERR(mpath); 2170 } 2171 2172 mesh_path_fix_nexthop(mpath, sta); 2173 2174 rcu_read_unlock(); 2175 return 0; 2176 } 2177 2178 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2179 const u8 *dst) 2180 { 2181 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2182 2183 if (dst) 2184 return mesh_path_del(sdata, dst); 2185 2186 mesh_path_flush_by_iface(sdata); 2187 return 0; 2188 } 2189 2190 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2191 const u8 *dst, const u8 *next_hop) 2192 { 2193 struct ieee80211_sub_if_data *sdata; 2194 struct mesh_path *mpath; 2195 struct sta_info *sta; 2196 2197 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2198 2199 rcu_read_lock(); 2200 2201 sta = sta_info_get(sdata, next_hop); 2202 if (!sta) { 2203 rcu_read_unlock(); 2204 return -ENOENT; 2205 } 2206 2207 mpath = mesh_path_lookup(sdata, dst); 2208 if (!mpath) { 2209 rcu_read_unlock(); 2210 return -ENOENT; 2211 } 2212 2213 mesh_path_fix_nexthop(mpath, sta); 2214 2215 rcu_read_unlock(); 2216 return 0; 2217 } 2218 2219 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2220 struct mpath_info *pinfo) 2221 { 2222 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2223 2224 if (next_hop_sta) 2225 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2226 else 2227 eth_zero_addr(next_hop); 2228 2229 memset(pinfo, 0, sizeof(*pinfo)); 2230 2231 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2232 2233 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2234 MPATH_INFO_SN | 2235 MPATH_INFO_METRIC | 2236 MPATH_INFO_EXPTIME | 2237 MPATH_INFO_DISCOVERY_TIMEOUT | 2238 MPATH_INFO_DISCOVERY_RETRIES | 2239 MPATH_INFO_FLAGS | 2240 MPATH_INFO_HOP_COUNT | 2241 MPATH_INFO_PATH_CHANGE; 2242 2243 pinfo->frame_qlen = mpath->frame_queue.qlen; 2244 pinfo->sn = mpath->sn; 2245 pinfo->metric = mpath->metric; 2246 if (time_before(jiffies, mpath->exp_time)) 2247 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2248 pinfo->discovery_timeout = 2249 jiffies_to_msecs(mpath->discovery_timeout); 2250 pinfo->discovery_retries = mpath->discovery_retries; 2251 if (mpath->flags & MESH_PATH_ACTIVE) 2252 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2253 if (mpath->flags & MESH_PATH_RESOLVING) 2254 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2255 if (mpath->flags & MESH_PATH_SN_VALID) 2256 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2257 if (mpath->flags & MESH_PATH_FIXED) 2258 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2259 if (mpath->flags & MESH_PATH_RESOLVED) 2260 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2261 pinfo->hop_count = mpath->hop_count; 2262 pinfo->path_change_count = mpath->path_change_count; 2263 } 2264 2265 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2266 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2267 2268 { 2269 struct ieee80211_sub_if_data *sdata; 2270 struct mesh_path *mpath; 2271 2272 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2273 2274 rcu_read_lock(); 2275 mpath = mesh_path_lookup(sdata, dst); 2276 if (!mpath) { 2277 rcu_read_unlock(); 2278 return -ENOENT; 2279 } 2280 memcpy(dst, mpath->dst, ETH_ALEN); 2281 mpath_set_pinfo(mpath, next_hop, pinfo); 2282 rcu_read_unlock(); 2283 return 0; 2284 } 2285 2286 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2287 int idx, u8 *dst, u8 *next_hop, 2288 struct mpath_info *pinfo) 2289 { 2290 struct ieee80211_sub_if_data *sdata; 2291 struct mesh_path *mpath; 2292 2293 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2294 2295 rcu_read_lock(); 2296 mpath = mesh_path_lookup_by_idx(sdata, idx); 2297 if (!mpath) { 2298 rcu_read_unlock(); 2299 return -ENOENT; 2300 } 2301 memcpy(dst, mpath->dst, ETH_ALEN); 2302 mpath_set_pinfo(mpath, next_hop, pinfo); 2303 rcu_read_unlock(); 2304 return 0; 2305 } 2306 2307 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2308 struct mpath_info *pinfo) 2309 { 2310 memset(pinfo, 0, sizeof(*pinfo)); 2311 memcpy(mpp, mpath->mpp, ETH_ALEN); 2312 2313 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2314 } 2315 2316 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2317 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2318 2319 { 2320 struct ieee80211_sub_if_data *sdata; 2321 struct mesh_path *mpath; 2322 2323 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2324 2325 rcu_read_lock(); 2326 mpath = mpp_path_lookup(sdata, dst); 2327 if (!mpath) { 2328 rcu_read_unlock(); 2329 return -ENOENT; 2330 } 2331 memcpy(dst, mpath->dst, ETH_ALEN); 2332 mpp_set_pinfo(mpath, mpp, pinfo); 2333 rcu_read_unlock(); 2334 return 0; 2335 } 2336 2337 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2338 int idx, u8 *dst, u8 *mpp, 2339 struct mpath_info *pinfo) 2340 { 2341 struct ieee80211_sub_if_data *sdata; 2342 struct mesh_path *mpath; 2343 2344 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2345 2346 rcu_read_lock(); 2347 mpath = mpp_path_lookup_by_idx(sdata, idx); 2348 if (!mpath) { 2349 rcu_read_unlock(); 2350 return -ENOENT; 2351 } 2352 memcpy(dst, mpath->dst, ETH_ALEN); 2353 mpp_set_pinfo(mpath, mpp, pinfo); 2354 rcu_read_unlock(); 2355 return 0; 2356 } 2357 2358 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2359 struct net_device *dev, 2360 struct mesh_config *conf) 2361 { 2362 struct ieee80211_sub_if_data *sdata; 2363 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2364 2365 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2366 return 0; 2367 } 2368 2369 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2370 { 2371 return (mask >> (parm-1)) & 0x1; 2372 } 2373 2374 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2375 const struct mesh_setup *setup) 2376 { 2377 u8 *new_ie; 2378 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2379 struct ieee80211_sub_if_data, u.mesh); 2380 int i; 2381 2382 /* allocate information elements */ 2383 new_ie = NULL; 2384 2385 if (setup->ie_len) { 2386 new_ie = kmemdup(setup->ie, setup->ie_len, 2387 GFP_KERNEL); 2388 if (!new_ie) 2389 return -ENOMEM; 2390 } 2391 ifmsh->ie_len = setup->ie_len; 2392 ifmsh->ie = new_ie; 2393 2394 /* now copy the rest of the setup parameters */ 2395 ifmsh->mesh_id_len = setup->mesh_id_len; 2396 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2397 ifmsh->mesh_sp_id = setup->sync_method; 2398 ifmsh->mesh_pp_id = setup->path_sel_proto; 2399 ifmsh->mesh_pm_id = setup->path_metric; 2400 ifmsh->user_mpm = setup->user_mpm; 2401 ifmsh->mesh_auth_id = setup->auth_id; 2402 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2403 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2404 if (setup->is_authenticated) 2405 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2406 if (setup->is_secure) 2407 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2408 2409 /* mcast rate setting in Mesh Node */ 2410 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2411 sizeof(setup->mcast_rate)); 2412 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2413 2414 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2415 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2416 2417 sdata->beacon_rate_set = false; 2418 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2419 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2420 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2421 sdata->beacon_rateidx_mask[i] = 2422 setup->beacon_rate.control[i].legacy; 2423 if (sdata->beacon_rateidx_mask[i]) 2424 sdata->beacon_rate_set = true; 2425 } 2426 } 2427 2428 return 0; 2429 } 2430 2431 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2432 struct net_device *dev, u32 mask, 2433 const struct mesh_config *nconf) 2434 { 2435 struct mesh_config *conf; 2436 struct ieee80211_sub_if_data *sdata; 2437 struct ieee80211_if_mesh *ifmsh; 2438 2439 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2440 ifmsh = &sdata->u.mesh; 2441 2442 /* Set the config options which we are interested in setting */ 2443 conf = &(sdata->u.mesh.mshcfg); 2444 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2445 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2446 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2447 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2448 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2449 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2450 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2451 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2452 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2453 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2454 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2455 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2456 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2457 conf->element_ttl = nconf->element_ttl; 2458 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2459 if (ifmsh->user_mpm) 2460 return -EBUSY; 2461 conf->auto_open_plinks = nconf->auto_open_plinks; 2462 } 2463 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2464 conf->dot11MeshNbrOffsetMaxNeighbor = 2465 nconf->dot11MeshNbrOffsetMaxNeighbor; 2466 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2467 conf->dot11MeshHWMPmaxPREQretries = 2468 nconf->dot11MeshHWMPmaxPREQretries; 2469 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2470 conf->path_refresh_time = nconf->path_refresh_time; 2471 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2472 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2473 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2474 conf->dot11MeshHWMPactivePathTimeout = 2475 nconf->dot11MeshHWMPactivePathTimeout; 2476 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2477 conf->dot11MeshHWMPpreqMinInterval = 2478 nconf->dot11MeshHWMPpreqMinInterval; 2479 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2480 conf->dot11MeshHWMPperrMinInterval = 2481 nconf->dot11MeshHWMPperrMinInterval; 2482 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2483 mask)) 2484 conf->dot11MeshHWMPnetDiameterTraversalTime = 2485 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2486 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2487 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2488 ieee80211_mesh_root_setup(ifmsh); 2489 } 2490 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2491 /* our current gate announcement implementation rides on root 2492 * announcements, so require this ifmsh to also be a root node 2493 * */ 2494 if (nconf->dot11MeshGateAnnouncementProtocol && 2495 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2496 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2497 ieee80211_mesh_root_setup(ifmsh); 2498 } 2499 conf->dot11MeshGateAnnouncementProtocol = 2500 nconf->dot11MeshGateAnnouncementProtocol; 2501 } 2502 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2503 conf->dot11MeshHWMPRannInterval = 2504 nconf->dot11MeshHWMPRannInterval; 2505 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2506 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2507 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2508 /* our RSSI threshold implementation is supported only for 2509 * devices that report signal in dBm. 2510 */ 2511 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2512 return -ENOTSUPP; 2513 conf->rssi_threshold = nconf->rssi_threshold; 2514 } 2515 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2516 conf->ht_opmode = nconf->ht_opmode; 2517 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2518 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2519 BSS_CHANGED_HT); 2520 } 2521 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2522 conf->dot11MeshHWMPactivePathToRootTimeout = 2523 nconf->dot11MeshHWMPactivePathToRootTimeout; 2524 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2525 conf->dot11MeshHWMProotInterval = 2526 nconf->dot11MeshHWMProotInterval; 2527 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2528 conf->dot11MeshHWMPconfirmationInterval = 2529 nconf->dot11MeshHWMPconfirmationInterval; 2530 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2531 conf->power_mode = nconf->power_mode; 2532 ieee80211_mps_local_status_update(sdata); 2533 } 2534 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2535 conf->dot11MeshAwakeWindowDuration = 2536 nconf->dot11MeshAwakeWindowDuration; 2537 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2538 conf->plink_timeout = nconf->plink_timeout; 2539 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2540 conf->dot11MeshConnectedToMeshGate = 2541 nconf->dot11MeshConnectedToMeshGate; 2542 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2543 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2544 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2545 conf->dot11MeshConnectedToAuthServer = 2546 nconf->dot11MeshConnectedToAuthServer; 2547 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2548 return 0; 2549 } 2550 2551 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2552 const struct mesh_config *conf, 2553 const struct mesh_setup *setup) 2554 { 2555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2556 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2557 int err; 2558 2559 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2560 err = copy_mesh_setup(ifmsh, setup); 2561 if (err) 2562 return err; 2563 2564 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2565 2566 /* can mesh use other SMPS modes? */ 2567 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2568 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2569 2570 mutex_lock(&sdata->local->mtx); 2571 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2572 IEEE80211_CHANCTX_SHARED); 2573 mutex_unlock(&sdata->local->mtx); 2574 if (err) 2575 return err; 2576 2577 return ieee80211_start_mesh(sdata); 2578 } 2579 2580 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2581 { 2582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2583 2584 ieee80211_stop_mesh(sdata); 2585 mutex_lock(&sdata->local->mtx); 2586 ieee80211_link_release_channel(&sdata->deflink); 2587 kfree(sdata->u.mesh.ie); 2588 mutex_unlock(&sdata->local->mtx); 2589 2590 return 0; 2591 } 2592 #endif 2593 2594 static int ieee80211_change_bss(struct wiphy *wiphy, 2595 struct net_device *dev, 2596 struct bss_parameters *params) 2597 { 2598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2599 struct ieee80211_link_data *link; 2600 struct ieee80211_supported_band *sband; 2601 u32 changed = 0; 2602 2603 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2604 if (IS_ERR(link)) 2605 return PTR_ERR(link); 2606 2607 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2608 return -ENOENT; 2609 2610 sband = ieee80211_get_link_sband(link); 2611 if (!sband) 2612 return -EINVAL; 2613 2614 if (params->basic_rates) { 2615 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2616 wiphy->bands[sband->band], 2617 params->basic_rates, 2618 params->basic_rates_len, 2619 &link->conf->basic_rates)) 2620 return -EINVAL; 2621 changed |= BSS_CHANGED_BASIC_RATES; 2622 ieee80211_check_rate_mask(link); 2623 } 2624 2625 if (params->use_cts_prot >= 0) { 2626 link->conf->use_cts_prot = params->use_cts_prot; 2627 changed |= BSS_CHANGED_ERP_CTS_PROT; 2628 } 2629 if (params->use_short_preamble >= 0) { 2630 link->conf->use_short_preamble = params->use_short_preamble; 2631 changed |= BSS_CHANGED_ERP_PREAMBLE; 2632 } 2633 2634 if (!link->conf->use_short_slot && 2635 (sband->band == NL80211_BAND_5GHZ || 2636 sband->band == NL80211_BAND_6GHZ)) { 2637 link->conf->use_short_slot = true; 2638 changed |= BSS_CHANGED_ERP_SLOT; 2639 } 2640 2641 if (params->use_short_slot_time >= 0) { 2642 link->conf->use_short_slot = params->use_short_slot_time; 2643 changed |= BSS_CHANGED_ERP_SLOT; 2644 } 2645 2646 if (params->ap_isolate >= 0) { 2647 if (params->ap_isolate) 2648 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2649 else 2650 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2651 ieee80211_check_fast_rx_iface(sdata); 2652 } 2653 2654 if (params->ht_opmode >= 0) { 2655 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2656 changed |= BSS_CHANGED_HT; 2657 } 2658 2659 if (params->p2p_ctwindow >= 0) { 2660 link->conf->p2p_noa_attr.oppps_ctwindow &= 2661 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2662 link->conf->p2p_noa_attr.oppps_ctwindow |= 2663 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2664 changed |= BSS_CHANGED_P2P_PS; 2665 } 2666 2667 if (params->p2p_opp_ps > 0) { 2668 link->conf->p2p_noa_attr.oppps_ctwindow |= 2669 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2670 changed |= BSS_CHANGED_P2P_PS; 2671 } else if (params->p2p_opp_ps == 0) { 2672 link->conf->p2p_noa_attr.oppps_ctwindow &= 2673 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2674 changed |= BSS_CHANGED_P2P_PS; 2675 } 2676 2677 ieee80211_link_info_change_notify(sdata, link, changed); 2678 2679 return 0; 2680 } 2681 2682 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2683 struct net_device *dev, 2684 struct ieee80211_txq_params *params) 2685 { 2686 struct ieee80211_local *local = wiphy_priv(wiphy); 2687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2688 struct ieee80211_link_data *link = 2689 ieee80211_link_or_deflink(sdata, params->link_id, true); 2690 struct ieee80211_tx_queue_params p; 2691 2692 if (!local->ops->conf_tx) 2693 return -EOPNOTSUPP; 2694 2695 if (local->hw.queues < IEEE80211_NUM_ACS) 2696 return -EOPNOTSUPP; 2697 2698 if (IS_ERR(link)) 2699 return PTR_ERR(link); 2700 2701 memset(&p, 0, sizeof(p)); 2702 p.aifs = params->aifs; 2703 p.cw_max = params->cwmax; 2704 p.cw_min = params->cwmin; 2705 p.txop = params->txop; 2706 2707 /* 2708 * Setting tx queue params disables u-apsd because it's only 2709 * called in master mode. 2710 */ 2711 p.uapsd = false; 2712 2713 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2714 2715 link->tx_conf[params->ac] = p; 2716 if (drv_conf_tx(local, link, params->ac, &p)) { 2717 wiphy_debug(local->hw.wiphy, 2718 "failed to set TX queue parameters for AC %d\n", 2719 params->ac); 2720 return -EINVAL; 2721 } 2722 2723 ieee80211_link_info_change_notify(sdata, link, 2724 BSS_CHANGED_QOS); 2725 2726 return 0; 2727 } 2728 2729 #ifdef CONFIG_PM 2730 static int ieee80211_suspend(struct wiphy *wiphy, 2731 struct cfg80211_wowlan *wowlan) 2732 { 2733 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2734 } 2735 2736 static int ieee80211_resume(struct wiphy *wiphy) 2737 { 2738 return __ieee80211_resume(wiphy_priv(wiphy)); 2739 } 2740 #else 2741 #define ieee80211_suspend NULL 2742 #define ieee80211_resume NULL 2743 #endif 2744 2745 static int ieee80211_scan(struct wiphy *wiphy, 2746 struct cfg80211_scan_request *req) 2747 { 2748 struct ieee80211_sub_if_data *sdata; 2749 2750 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2751 2752 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2753 case NL80211_IFTYPE_STATION: 2754 case NL80211_IFTYPE_ADHOC: 2755 case NL80211_IFTYPE_MESH_POINT: 2756 case NL80211_IFTYPE_P2P_CLIENT: 2757 case NL80211_IFTYPE_P2P_DEVICE: 2758 break; 2759 case NL80211_IFTYPE_P2P_GO: 2760 if (sdata->local->ops->hw_scan) 2761 break; 2762 /* 2763 * FIXME: implement NoA while scanning in software, 2764 * for now fall through to allow scanning only when 2765 * beaconing hasn't been configured yet 2766 */ 2767 fallthrough; 2768 case NL80211_IFTYPE_AP: 2769 /* 2770 * If the scan has been forced (and the driver supports 2771 * forcing), don't care about being beaconing already. 2772 * This will create problems to the attached stations (e.g. all 2773 * the frames sent while scanning on other channel will be 2774 * lost) 2775 */ 2776 if (sdata->deflink.u.ap.beacon && 2777 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2778 !(req->flags & NL80211_SCAN_FLAG_AP))) 2779 return -EOPNOTSUPP; 2780 break; 2781 case NL80211_IFTYPE_NAN: 2782 default: 2783 return -EOPNOTSUPP; 2784 } 2785 2786 return ieee80211_request_scan(sdata, req); 2787 } 2788 2789 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2790 { 2791 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2792 } 2793 2794 static int 2795 ieee80211_sched_scan_start(struct wiphy *wiphy, 2796 struct net_device *dev, 2797 struct cfg80211_sched_scan_request *req) 2798 { 2799 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2800 2801 if (!sdata->local->ops->sched_scan_start) 2802 return -EOPNOTSUPP; 2803 2804 return ieee80211_request_sched_scan_start(sdata, req); 2805 } 2806 2807 static int 2808 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2809 u64 reqid) 2810 { 2811 struct ieee80211_local *local = wiphy_priv(wiphy); 2812 2813 if (!local->ops->sched_scan_stop) 2814 return -EOPNOTSUPP; 2815 2816 return ieee80211_request_sched_scan_stop(local); 2817 } 2818 2819 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2820 struct cfg80211_auth_request *req) 2821 { 2822 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2823 } 2824 2825 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2826 struct cfg80211_assoc_request *req) 2827 { 2828 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2829 } 2830 2831 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2832 struct cfg80211_deauth_request *req) 2833 { 2834 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2835 } 2836 2837 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2838 struct cfg80211_disassoc_request *req) 2839 { 2840 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2841 } 2842 2843 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2844 struct cfg80211_ibss_params *params) 2845 { 2846 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2847 } 2848 2849 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2850 { 2851 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2852 } 2853 2854 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2855 struct ocb_setup *setup) 2856 { 2857 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2858 } 2859 2860 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2861 { 2862 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2863 } 2864 2865 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2866 int rate[NUM_NL80211_BANDS]) 2867 { 2868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2869 2870 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2871 sizeof(int) * NUM_NL80211_BANDS); 2872 2873 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2874 BSS_CHANGED_MCAST_RATE); 2875 2876 return 0; 2877 } 2878 2879 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2880 { 2881 struct ieee80211_local *local = wiphy_priv(wiphy); 2882 int err; 2883 2884 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2885 ieee80211_check_fast_xmit_all(local); 2886 2887 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2888 2889 if (err) { 2890 ieee80211_check_fast_xmit_all(local); 2891 return err; 2892 } 2893 } 2894 2895 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2896 (changed & WIPHY_PARAM_DYN_ACK)) { 2897 s16 coverage_class; 2898 2899 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2900 wiphy->coverage_class : -1; 2901 err = drv_set_coverage_class(local, coverage_class); 2902 2903 if (err) 2904 return err; 2905 } 2906 2907 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2908 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2909 2910 if (err) 2911 return err; 2912 } 2913 2914 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2915 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2916 return -EINVAL; 2917 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2918 } 2919 if (changed & WIPHY_PARAM_RETRY_LONG) { 2920 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2921 return -EINVAL; 2922 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2923 } 2924 if (changed & 2925 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2926 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2927 2928 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2929 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2930 WIPHY_PARAM_TXQ_QUANTUM)) 2931 ieee80211_txq_set_params(local); 2932 2933 return 0; 2934 } 2935 2936 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2937 struct wireless_dev *wdev, 2938 enum nl80211_tx_power_setting type, int mbm) 2939 { 2940 struct ieee80211_local *local = wiphy_priv(wiphy); 2941 struct ieee80211_sub_if_data *sdata; 2942 enum nl80211_tx_power_setting txp_type = type; 2943 bool update_txp_type = false; 2944 bool has_monitor = false; 2945 2946 if (wdev) { 2947 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2948 2949 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2950 sdata = wiphy_dereference(local->hw.wiphy, 2951 local->monitor_sdata); 2952 if (!sdata) 2953 return -EOPNOTSUPP; 2954 } 2955 2956 switch (type) { 2957 case NL80211_TX_POWER_AUTOMATIC: 2958 sdata->deflink.user_power_level = 2959 IEEE80211_UNSET_POWER_LEVEL; 2960 txp_type = NL80211_TX_POWER_LIMITED; 2961 break; 2962 case NL80211_TX_POWER_LIMITED: 2963 case NL80211_TX_POWER_FIXED: 2964 if (mbm < 0 || (mbm % 100)) 2965 return -EOPNOTSUPP; 2966 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 2967 break; 2968 } 2969 2970 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2971 update_txp_type = true; 2972 sdata->vif.bss_conf.txpower_type = txp_type; 2973 } 2974 2975 ieee80211_recalc_txpower(sdata, update_txp_type); 2976 2977 return 0; 2978 } 2979 2980 switch (type) { 2981 case NL80211_TX_POWER_AUTOMATIC: 2982 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2983 txp_type = NL80211_TX_POWER_LIMITED; 2984 break; 2985 case NL80211_TX_POWER_LIMITED: 2986 case NL80211_TX_POWER_FIXED: 2987 if (mbm < 0 || (mbm % 100)) 2988 return -EOPNOTSUPP; 2989 local->user_power_level = MBM_TO_DBM(mbm); 2990 break; 2991 } 2992 2993 mutex_lock(&local->iflist_mtx); 2994 list_for_each_entry(sdata, &local->interfaces, list) { 2995 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2996 has_monitor = true; 2997 continue; 2998 } 2999 sdata->deflink.user_power_level = local->user_power_level; 3000 if (txp_type != sdata->vif.bss_conf.txpower_type) 3001 update_txp_type = true; 3002 sdata->vif.bss_conf.txpower_type = txp_type; 3003 } 3004 list_for_each_entry(sdata, &local->interfaces, list) { 3005 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3006 continue; 3007 ieee80211_recalc_txpower(sdata, update_txp_type); 3008 } 3009 mutex_unlock(&local->iflist_mtx); 3010 3011 if (has_monitor) { 3012 sdata = wiphy_dereference(local->hw.wiphy, 3013 local->monitor_sdata); 3014 if (sdata) { 3015 sdata->deflink.user_power_level = local->user_power_level; 3016 if (txp_type != sdata->vif.bss_conf.txpower_type) 3017 update_txp_type = true; 3018 sdata->vif.bss_conf.txpower_type = txp_type; 3019 3020 ieee80211_recalc_txpower(sdata, update_txp_type); 3021 } 3022 } 3023 3024 return 0; 3025 } 3026 3027 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3028 struct wireless_dev *wdev, 3029 int *dbm) 3030 { 3031 struct ieee80211_local *local = wiphy_priv(wiphy); 3032 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3033 3034 if (local->ops->get_txpower) 3035 return drv_get_txpower(local, sdata, dbm); 3036 3037 if (!local->use_chanctx) 3038 *dbm = local->hw.conf.power_level; 3039 else 3040 *dbm = sdata->vif.bss_conf.txpower; 3041 3042 return 0; 3043 } 3044 3045 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3046 { 3047 struct ieee80211_local *local = wiphy_priv(wiphy); 3048 3049 drv_rfkill_poll(local); 3050 } 3051 3052 #ifdef CONFIG_NL80211_TESTMODE 3053 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3054 struct wireless_dev *wdev, 3055 void *data, int len) 3056 { 3057 struct ieee80211_local *local = wiphy_priv(wiphy); 3058 struct ieee80211_vif *vif = NULL; 3059 3060 if (!local->ops->testmode_cmd) 3061 return -EOPNOTSUPP; 3062 3063 if (wdev) { 3064 struct ieee80211_sub_if_data *sdata; 3065 3066 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3067 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3068 vif = &sdata->vif; 3069 } 3070 3071 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3072 } 3073 3074 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3075 struct sk_buff *skb, 3076 struct netlink_callback *cb, 3077 void *data, int len) 3078 { 3079 struct ieee80211_local *local = wiphy_priv(wiphy); 3080 3081 if (!local->ops->testmode_dump) 3082 return -EOPNOTSUPP; 3083 3084 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3085 } 3086 #endif 3087 3088 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3089 struct ieee80211_link_data *link, 3090 enum ieee80211_smps_mode smps_mode) 3091 { 3092 const u8 *ap; 3093 enum ieee80211_smps_mode old_req; 3094 int err; 3095 struct sta_info *sta; 3096 bool tdls_peer_found = false; 3097 3098 lockdep_assert_held(&sdata->wdev.mtx); 3099 3100 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3101 return -EINVAL; 3102 3103 old_req = link->u.mgd.req_smps; 3104 link->u.mgd.req_smps = smps_mode; 3105 3106 if (old_req == smps_mode && 3107 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3108 return 0; 3109 3110 /* 3111 * If not associated, or current association is not an HT 3112 * association, there's no need to do anything, just store 3113 * the new value until we associate. 3114 */ 3115 if (!sdata->u.mgd.associated || 3116 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3117 return 0; 3118 3119 ap = link->u.mgd.bssid; 3120 3121 rcu_read_lock(); 3122 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3123 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3124 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3125 continue; 3126 3127 tdls_peer_found = true; 3128 break; 3129 } 3130 rcu_read_unlock(); 3131 3132 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3133 if (tdls_peer_found || !sdata->u.mgd.powersave) 3134 smps_mode = IEEE80211_SMPS_OFF; 3135 else 3136 smps_mode = IEEE80211_SMPS_DYNAMIC; 3137 } 3138 3139 /* send SM PS frame to AP */ 3140 err = ieee80211_send_smps_action(sdata, smps_mode, 3141 ap, ap); 3142 if (err) 3143 link->u.mgd.req_smps = old_req; 3144 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3145 ieee80211_teardown_tdls_peers(sdata); 3146 3147 return err; 3148 } 3149 3150 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3151 bool enabled, int timeout) 3152 { 3153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3154 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3155 unsigned int link_id; 3156 3157 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3158 return -EOPNOTSUPP; 3159 3160 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3161 return -EOPNOTSUPP; 3162 3163 if (enabled == sdata->u.mgd.powersave && 3164 timeout == local->dynamic_ps_forced_timeout) 3165 return 0; 3166 3167 sdata->u.mgd.powersave = enabled; 3168 local->dynamic_ps_forced_timeout = timeout; 3169 3170 /* no change, but if automatic follow powersave */ 3171 sdata_lock(sdata); 3172 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3173 struct ieee80211_link_data *link; 3174 3175 link = sdata_dereference(sdata->link[link_id], sdata); 3176 3177 if (!link) 3178 continue; 3179 __ieee80211_request_smps_mgd(sdata, link, 3180 link->u.mgd.req_smps); 3181 } 3182 sdata_unlock(sdata); 3183 3184 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3185 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3186 3187 ieee80211_recalc_ps(local); 3188 ieee80211_recalc_ps_vif(sdata); 3189 ieee80211_check_fast_rx_iface(sdata); 3190 3191 return 0; 3192 } 3193 3194 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3195 struct net_device *dev, 3196 s32 rssi_thold, u32 rssi_hyst) 3197 { 3198 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3199 struct ieee80211_vif *vif = &sdata->vif; 3200 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3201 3202 if (rssi_thold == bss_conf->cqm_rssi_thold && 3203 rssi_hyst == bss_conf->cqm_rssi_hyst) 3204 return 0; 3205 3206 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3207 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3208 return -EOPNOTSUPP; 3209 3210 bss_conf->cqm_rssi_thold = rssi_thold; 3211 bss_conf->cqm_rssi_hyst = rssi_hyst; 3212 bss_conf->cqm_rssi_low = 0; 3213 bss_conf->cqm_rssi_high = 0; 3214 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3215 3216 /* tell the driver upon association, unless already associated */ 3217 if (sdata->u.mgd.associated && 3218 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3219 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3220 BSS_CHANGED_CQM); 3221 3222 return 0; 3223 } 3224 3225 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3226 struct net_device *dev, 3227 s32 rssi_low, s32 rssi_high) 3228 { 3229 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3230 struct ieee80211_vif *vif = &sdata->vif; 3231 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3232 3233 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3234 return -EOPNOTSUPP; 3235 3236 bss_conf->cqm_rssi_low = rssi_low; 3237 bss_conf->cqm_rssi_high = rssi_high; 3238 bss_conf->cqm_rssi_thold = 0; 3239 bss_conf->cqm_rssi_hyst = 0; 3240 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3241 3242 /* tell the driver upon association, unless already associated */ 3243 if (sdata->u.mgd.associated && 3244 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3245 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3246 BSS_CHANGED_CQM); 3247 3248 return 0; 3249 } 3250 3251 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3252 struct net_device *dev, 3253 unsigned int link_id, 3254 const u8 *addr, 3255 const struct cfg80211_bitrate_mask *mask) 3256 { 3257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3258 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3259 int i, ret; 3260 3261 if (!ieee80211_sdata_running(sdata)) 3262 return -ENETDOWN; 3263 3264 /* 3265 * If active validate the setting and reject it if it doesn't leave 3266 * at least one basic rate usable, since we really have to be able 3267 * to send something, and if we're an AP we have to be able to do 3268 * so at a basic rate so that all clients can receive it. 3269 */ 3270 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3271 sdata->vif.bss_conf.chandef.chan) { 3272 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3273 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3274 3275 if (!(mask->control[band].legacy & basic_rates)) 3276 return -EINVAL; 3277 } 3278 3279 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3280 ret = drv_set_bitrate_mask(local, sdata, mask); 3281 if (ret) 3282 return ret; 3283 } 3284 3285 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3286 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3287 int j; 3288 3289 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3290 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3291 sizeof(mask->control[i].ht_mcs)); 3292 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3293 mask->control[i].vht_mcs, 3294 sizeof(mask->control[i].vht_mcs)); 3295 3296 sdata->rc_has_mcs_mask[i] = false; 3297 sdata->rc_has_vht_mcs_mask[i] = false; 3298 if (!sband) 3299 continue; 3300 3301 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3302 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3303 sdata->rc_has_mcs_mask[i] = true; 3304 break; 3305 } 3306 } 3307 3308 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3309 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3310 sdata->rc_has_vht_mcs_mask[i] = true; 3311 break; 3312 } 3313 } 3314 } 3315 3316 return 0; 3317 } 3318 3319 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3320 struct net_device *dev, 3321 struct cfg80211_chan_def *chandef, 3322 u32 cac_time_ms) 3323 { 3324 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3325 struct ieee80211_local *local = sdata->local; 3326 int err; 3327 3328 mutex_lock(&local->mtx); 3329 if (!list_empty(&local->roc_list) || local->scanning) { 3330 err = -EBUSY; 3331 goto out_unlock; 3332 } 3333 3334 /* whatever, but channel contexts should not complain about that one */ 3335 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3336 sdata->deflink.needed_rx_chains = local->rx_chains; 3337 3338 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3339 IEEE80211_CHANCTX_SHARED); 3340 if (err) 3341 goto out_unlock; 3342 3343 ieee80211_queue_delayed_work(&sdata->local->hw, 3344 &sdata->deflink.dfs_cac_timer_work, 3345 msecs_to_jiffies(cac_time_ms)); 3346 3347 out_unlock: 3348 mutex_unlock(&local->mtx); 3349 return err; 3350 } 3351 3352 static void ieee80211_end_cac(struct wiphy *wiphy, 3353 struct net_device *dev) 3354 { 3355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3356 struct ieee80211_local *local = sdata->local; 3357 3358 mutex_lock(&local->mtx); 3359 list_for_each_entry(sdata, &local->interfaces, list) { 3360 /* it might be waiting for the local->mtx, but then 3361 * by the time it gets it, sdata->wdev.cac_started 3362 * will no longer be true 3363 */ 3364 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3365 3366 if (sdata->wdev.cac_started) { 3367 ieee80211_link_release_channel(&sdata->deflink); 3368 sdata->wdev.cac_started = false; 3369 } 3370 } 3371 mutex_unlock(&local->mtx); 3372 } 3373 3374 static struct cfg80211_beacon_data * 3375 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3376 { 3377 struct cfg80211_beacon_data *new_beacon; 3378 u8 *pos; 3379 int len; 3380 3381 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3382 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3383 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3384 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3385 3386 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3387 if (!new_beacon) 3388 return NULL; 3389 3390 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3391 new_beacon->mbssid_ies = 3392 kzalloc(struct_size(new_beacon->mbssid_ies, 3393 elem, beacon->mbssid_ies->cnt), 3394 GFP_KERNEL); 3395 if (!new_beacon->mbssid_ies) { 3396 kfree(new_beacon); 3397 return NULL; 3398 } 3399 } 3400 3401 pos = (u8 *)(new_beacon + 1); 3402 if (beacon->head_len) { 3403 new_beacon->head_len = beacon->head_len; 3404 new_beacon->head = pos; 3405 memcpy(pos, beacon->head, beacon->head_len); 3406 pos += beacon->head_len; 3407 } 3408 if (beacon->tail_len) { 3409 new_beacon->tail_len = beacon->tail_len; 3410 new_beacon->tail = pos; 3411 memcpy(pos, beacon->tail, beacon->tail_len); 3412 pos += beacon->tail_len; 3413 } 3414 if (beacon->beacon_ies_len) { 3415 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3416 new_beacon->beacon_ies = pos; 3417 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3418 pos += beacon->beacon_ies_len; 3419 } 3420 if (beacon->proberesp_ies_len) { 3421 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3422 new_beacon->proberesp_ies = pos; 3423 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3424 pos += beacon->proberesp_ies_len; 3425 } 3426 if (beacon->assocresp_ies_len) { 3427 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3428 new_beacon->assocresp_ies = pos; 3429 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3430 pos += beacon->assocresp_ies_len; 3431 } 3432 if (beacon->probe_resp_len) { 3433 new_beacon->probe_resp_len = beacon->probe_resp_len; 3434 new_beacon->probe_resp = pos; 3435 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3436 pos += beacon->probe_resp_len; 3437 } 3438 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3439 pos += ieee80211_copy_mbssid_beacon(pos, 3440 new_beacon->mbssid_ies, 3441 beacon->mbssid_ies); 3442 3443 /* might copy -1, meaning no changes requested */ 3444 new_beacon->ftm_responder = beacon->ftm_responder; 3445 if (beacon->lci) { 3446 new_beacon->lci_len = beacon->lci_len; 3447 new_beacon->lci = pos; 3448 memcpy(pos, beacon->lci, beacon->lci_len); 3449 pos += beacon->lci_len; 3450 } 3451 if (beacon->civicloc) { 3452 new_beacon->civicloc_len = beacon->civicloc_len; 3453 new_beacon->civicloc = pos; 3454 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3455 pos += beacon->civicloc_len; 3456 } 3457 3458 return new_beacon; 3459 } 3460 3461 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3462 { 3463 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3464 struct ieee80211_local *local = sdata->local; 3465 3466 rcu_read_lock(); 3467 3468 if (vif->mbssid_tx_vif == vif) { 3469 /* Trigger ieee80211_csa_finish() on the non-transmitting 3470 * interfaces when channel switch is received on 3471 * transmitting interface 3472 */ 3473 struct ieee80211_sub_if_data *iter; 3474 3475 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3476 if (!ieee80211_sdata_running(iter)) 3477 continue; 3478 3479 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3480 continue; 3481 3482 ieee80211_queue_work(&iter->local->hw, 3483 &iter->deflink.csa_finalize_work); 3484 } 3485 } 3486 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3487 3488 rcu_read_unlock(); 3489 } 3490 EXPORT_SYMBOL(ieee80211_csa_finish); 3491 3492 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3493 { 3494 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3495 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3496 struct ieee80211_local *local = sdata->local; 3497 3498 sdata->deflink.csa_block_tx = block_tx; 3499 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3500 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3501 } 3502 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3503 3504 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3505 u32 *changed) 3506 { 3507 int err; 3508 3509 switch (sdata->vif.type) { 3510 case NL80211_IFTYPE_AP: 3511 if (!sdata->deflink.u.ap.next_beacon) 3512 return -EINVAL; 3513 3514 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3515 sdata->deflink.u.ap.next_beacon, 3516 NULL, NULL); 3517 ieee80211_free_next_beacon(&sdata->deflink); 3518 3519 if (err < 0) 3520 return err; 3521 *changed |= err; 3522 break; 3523 case NL80211_IFTYPE_ADHOC: 3524 err = ieee80211_ibss_finish_csa(sdata); 3525 if (err < 0) 3526 return err; 3527 *changed |= err; 3528 break; 3529 #ifdef CONFIG_MAC80211_MESH 3530 case NL80211_IFTYPE_MESH_POINT: 3531 err = ieee80211_mesh_finish_csa(sdata); 3532 if (err < 0) 3533 return err; 3534 *changed |= err; 3535 break; 3536 #endif 3537 default: 3538 WARN_ON(1); 3539 return -EINVAL; 3540 } 3541 3542 return 0; 3543 } 3544 3545 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3546 { 3547 struct ieee80211_local *local = sdata->local; 3548 u32 changed = 0; 3549 int err; 3550 3551 sdata_assert_lock(sdata); 3552 lockdep_assert_held(&local->mtx); 3553 lockdep_assert_held(&local->chanctx_mtx); 3554 3555 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3556 sdata->vif.bss_conf.eht_puncturing = 3557 sdata->vif.bss_conf.csa_punct_bitmap; 3558 changed |= BSS_CHANGED_EHT_PUNCTURING; 3559 } 3560 3561 /* 3562 * using reservation isn't immediate as it may be deferred until later 3563 * with multi-vif. once reservation is complete it will re-schedule the 3564 * work with no reserved_chanctx so verify chandef to check if it 3565 * completed successfully 3566 */ 3567 3568 if (sdata->deflink.reserved_chanctx) { 3569 /* 3570 * with multi-vif csa driver may call ieee80211_csa_finish() 3571 * many times while waiting for other interfaces to use their 3572 * reservations 3573 */ 3574 if (sdata->deflink.reserved_ready) 3575 return 0; 3576 3577 return ieee80211_link_use_reserved_context(&sdata->deflink); 3578 } 3579 3580 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3581 &sdata->deflink.csa_chandef)) 3582 return -EINVAL; 3583 3584 sdata->vif.bss_conf.csa_active = false; 3585 3586 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3587 if (err) 3588 return err; 3589 3590 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3591 3592 if (sdata->deflink.csa_block_tx) { 3593 ieee80211_wake_vif_queues(local, sdata, 3594 IEEE80211_QUEUE_STOP_REASON_CSA); 3595 sdata->deflink.csa_block_tx = false; 3596 } 3597 3598 err = drv_post_channel_switch(sdata); 3599 if (err) 3600 return err; 3601 3602 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3603 sdata->vif.bss_conf.eht_puncturing); 3604 3605 return 0; 3606 } 3607 3608 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3609 { 3610 if (__ieee80211_csa_finalize(sdata)) { 3611 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3612 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3613 GFP_KERNEL); 3614 } 3615 } 3616 3617 void ieee80211_csa_finalize_work(struct work_struct *work) 3618 { 3619 struct ieee80211_sub_if_data *sdata = 3620 container_of(work, struct ieee80211_sub_if_data, 3621 deflink.csa_finalize_work); 3622 struct ieee80211_local *local = sdata->local; 3623 3624 sdata_lock(sdata); 3625 mutex_lock(&local->mtx); 3626 mutex_lock(&local->chanctx_mtx); 3627 3628 /* AP might have been stopped while waiting for the lock. */ 3629 if (!sdata->vif.bss_conf.csa_active) 3630 goto unlock; 3631 3632 if (!ieee80211_sdata_running(sdata)) 3633 goto unlock; 3634 3635 ieee80211_csa_finalize(sdata); 3636 3637 unlock: 3638 mutex_unlock(&local->chanctx_mtx); 3639 mutex_unlock(&local->mtx); 3640 sdata_unlock(sdata); 3641 } 3642 3643 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3644 struct cfg80211_csa_settings *params, 3645 u32 *changed) 3646 { 3647 struct ieee80211_csa_settings csa = {}; 3648 int err; 3649 3650 switch (sdata->vif.type) { 3651 case NL80211_IFTYPE_AP: 3652 sdata->deflink.u.ap.next_beacon = 3653 cfg80211_beacon_dup(¶ms->beacon_after); 3654 if (!sdata->deflink.u.ap.next_beacon) 3655 return -ENOMEM; 3656 3657 /* 3658 * With a count of 0, we don't have to wait for any 3659 * TBTT before switching, so complete the CSA 3660 * immediately. In theory, with a count == 1 we 3661 * should delay the switch until just before the next 3662 * TBTT, but that would complicate things so we switch 3663 * immediately too. If we would delay the switch 3664 * until the next TBTT, we would have to set the probe 3665 * response here. 3666 * 3667 * TODO: A channel switch with count <= 1 without 3668 * sending a CSA action frame is kind of useless, 3669 * because the clients won't know we're changing 3670 * channels. The action frame must be implemented 3671 * either here or in the userspace. 3672 */ 3673 if (params->count <= 1) 3674 break; 3675 3676 if ((params->n_counter_offsets_beacon > 3677 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3678 (params->n_counter_offsets_presp > 3679 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3680 ieee80211_free_next_beacon(&sdata->deflink); 3681 return -EINVAL; 3682 } 3683 3684 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3685 csa.counter_offsets_presp = params->counter_offsets_presp; 3686 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3687 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3688 csa.count = params->count; 3689 3690 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3691 ¶ms->beacon_csa, &csa, 3692 NULL); 3693 if (err < 0) { 3694 ieee80211_free_next_beacon(&sdata->deflink); 3695 return err; 3696 } 3697 *changed |= err; 3698 3699 break; 3700 case NL80211_IFTYPE_ADHOC: 3701 if (!sdata->vif.cfg.ibss_joined) 3702 return -EINVAL; 3703 3704 if (params->chandef.width != sdata->u.ibss.chandef.width) 3705 return -EINVAL; 3706 3707 switch (params->chandef.width) { 3708 case NL80211_CHAN_WIDTH_40: 3709 if (cfg80211_get_chandef_type(¶ms->chandef) != 3710 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3711 return -EINVAL; 3712 break; 3713 case NL80211_CHAN_WIDTH_5: 3714 case NL80211_CHAN_WIDTH_10: 3715 case NL80211_CHAN_WIDTH_20_NOHT: 3716 case NL80211_CHAN_WIDTH_20: 3717 break; 3718 default: 3719 return -EINVAL; 3720 } 3721 3722 /* changes into another band are not supported */ 3723 if (sdata->u.ibss.chandef.chan->band != 3724 params->chandef.chan->band) 3725 return -EINVAL; 3726 3727 /* see comments in the NL80211_IFTYPE_AP block */ 3728 if (params->count > 1) { 3729 err = ieee80211_ibss_csa_beacon(sdata, params); 3730 if (err < 0) 3731 return err; 3732 *changed |= err; 3733 } 3734 3735 ieee80211_send_action_csa(sdata, params); 3736 3737 break; 3738 #ifdef CONFIG_MAC80211_MESH 3739 case NL80211_IFTYPE_MESH_POINT: { 3740 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3741 3742 /* changes into another band are not supported */ 3743 if (sdata->vif.bss_conf.chandef.chan->band != 3744 params->chandef.chan->band) 3745 return -EINVAL; 3746 3747 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3748 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3749 if (!ifmsh->pre_value) 3750 ifmsh->pre_value = 1; 3751 else 3752 ifmsh->pre_value++; 3753 } 3754 3755 /* see comments in the NL80211_IFTYPE_AP block */ 3756 if (params->count > 1) { 3757 err = ieee80211_mesh_csa_beacon(sdata, params); 3758 if (err < 0) { 3759 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3760 return err; 3761 } 3762 *changed |= err; 3763 } 3764 3765 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3766 ieee80211_send_action_csa(sdata, params); 3767 3768 break; 3769 } 3770 #endif 3771 default: 3772 return -EOPNOTSUPP; 3773 } 3774 3775 return 0; 3776 } 3777 3778 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3779 { 3780 sdata->vif.bss_conf.color_change_active = false; 3781 3782 ieee80211_free_next_beacon(&sdata->deflink); 3783 3784 cfg80211_color_change_aborted_notify(sdata->dev); 3785 } 3786 3787 static int 3788 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3789 struct cfg80211_csa_settings *params) 3790 { 3791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3792 struct ieee80211_local *local = sdata->local; 3793 struct ieee80211_channel_switch ch_switch; 3794 struct ieee80211_chanctx_conf *conf; 3795 struct ieee80211_chanctx *chanctx; 3796 u32 changed = 0; 3797 int err; 3798 3799 sdata_assert_lock(sdata); 3800 lockdep_assert_held(&local->mtx); 3801 3802 if (!list_empty(&local->roc_list) || local->scanning) 3803 return -EBUSY; 3804 3805 if (sdata->wdev.cac_started) 3806 return -EBUSY; 3807 3808 if (cfg80211_chandef_identical(¶ms->chandef, 3809 &sdata->vif.bss_conf.chandef)) 3810 return -EINVAL; 3811 3812 /* don't allow another channel switch if one is already active. */ 3813 if (sdata->vif.bss_conf.csa_active) 3814 return -EBUSY; 3815 3816 mutex_lock(&local->chanctx_mtx); 3817 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3818 lockdep_is_held(&local->chanctx_mtx)); 3819 if (!conf) { 3820 err = -EBUSY; 3821 goto out; 3822 } 3823 3824 if (params->chandef.chan->freq_offset) { 3825 /* this may work, but is untested */ 3826 err = -EOPNOTSUPP; 3827 goto out; 3828 } 3829 3830 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3831 3832 ch_switch.timestamp = 0; 3833 ch_switch.device_timestamp = 0; 3834 ch_switch.block_tx = params->block_tx; 3835 ch_switch.chandef = params->chandef; 3836 ch_switch.count = params->count; 3837 3838 err = drv_pre_channel_switch(sdata, &ch_switch); 3839 if (err) 3840 goto out; 3841 3842 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3843 chanctx->mode, 3844 params->radar_required); 3845 if (err) 3846 goto out; 3847 3848 /* if reservation is invalid then this will fail */ 3849 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3850 if (err) { 3851 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3852 goto out; 3853 } 3854 3855 /* if there is a color change in progress, abort it */ 3856 if (sdata->vif.bss_conf.color_change_active) 3857 ieee80211_color_change_abort(sdata); 3858 3859 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3860 if (err) { 3861 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3862 goto out; 3863 } 3864 3865 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3866 goto out; 3867 3868 sdata->deflink.csa_chandef = params->chandef; 3869 sdata->deflink.csa_block_tx = params->block_tx; 3870 sdata->vif.bss_conf.csa_active = true; 3871 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3872 3873 if (sdata->deflink.csa_block_tx) 3874 ieee80211_stop_vif_queues(local, sdata, 3875 IEEE80211_QUEUE_STOP_REASON_CSA); 3876 3877 cfg80211_ch_switch_started_notify(sdata->dev, 3878 &sdata->deflink.csa_chandef, 0, 3879 params->count, params->block_tx, 3880 sdata->vif.bss_conf.csa_punct_bitmap); 3881 3882 if (changed) { 3883 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3884 changed); 3885 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3886 } else { 3887 /* if the beacon didn't change, we can finalize immediately */ 3888 ieee80211_csa_finalize(sdata); 3889 } 3890 3891 out: 3892 mutex_unlock(&local->chanctx_mtx); 3893 return err; 3894 } 3895 3896 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3897 struct cfg80211_csa_settings *params) 3898 { 3899 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3900 struct ieee80211_local *local = sdata->local; 3901 int err; 3902 3903 mutex_lock(&local->mtx); 3904 err = __ieee80211_channel_switch(wiphy, dev, params); 3905 mutex_unlock(&local->mtx); 3906 3907 return err; 3908 } 3909 3910 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3911 { 3912 lockdep_assert_held(&local->mtx); 3913 3914 local->roc_cookie_counter++; 3915 3916 /* wow, you wrapped 64 bits ... more likely a bug */ 3917 if (WARN_ON(local->roc_cookie_counter == 0)) 3918 local->roc_cookie_counter++; 3919 3920 return local->roc_cookie_counter; 3921 } 3922 3923 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3924 u64 *cookie, gfp_t gfp) 3925 { 3926 unsigned long spin_flags; 3927 struct sk_buff *ack_skb; 3928 int id; 3929 3930 ack_skb = skb_copy(skb, gfp); 3931 if (!ack_skb) 3932 return -ENOMEM; 3933 3934 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3935 id = idr_alloc(&local->ack_status_frames, ack_skb, 3936 1, 0x2000, GFP_ATOMIC); 3937 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3938 3939 if (id < 0) { 3940 kfree_skb(ack_skb); 3941 return -ENOMEM; 3942 } 3943 3944 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3945 3946 *cookie = ieee80211_mgmt_tx_cookie(local); 3947 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3948 3949 return 0; 3950 } 3951 3952 static void 3953 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3954 struct wireless_dev *wdev, 3955 struct mgmt_frame_regs *upd) 3956 { 3957 struct ieee80211_local *local = wiphy_priv(wiphy); 3958 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3959 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3960 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3961 bool global_change, intf_change; 3962 3963 global_change = 3964 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3965 (local->rx_mcast_action_reg != 3966 !!(upd->global_mcast_stypes & action_mask)); 3967 local->probe_req_reg = upd->global_stypes & preq_mask; 3968 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3969 3970 intf_change = (sdata->vif.probe_req_reg != 3971 !!(upd->interface_stypes & preq_mask)) || 3972 (sdata->vif.rx_mcast_action_reg != 3973 !!(upd->interface_mcast_stypes & action_mask)); 3974 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3975 sdata->vif.rx_mcast_action_reg = 3976 upd->interface_mcast_stypes & action_mask; 3977 3978 if (!local->open_count) 3979 return; 3980 3981 if (intf_change && ieee80211_sdata_running(sdata)) 3982 drv_config_iface_filter(local, sdata, 3983 sdata->vif.probe_req_reg ? 3984 FIF_PROBE_REQ : 0, 3985 FIF_PROBE_REQ); 3986 3987 if (global_change) 3988 ieee80211_configure_filter(local); 3989 } 3990 3991 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3992 { 3993 struct ieee80211_local *local = wiphy_priv(wiphy); 3994 3995 if (local->started) 3996 return -EOPNOTSUPP; 3997 3998 return drv_set_antenna(local, tx_ant, rx_ant); 3999 } 4000 4001 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4002 { 4003 struct ieee80211_local *local = wiphy_priv(wiphy); 4004 4005 return drv_get_antenna(local, tx_ant, rx_ant); 4006 } 4007 4008 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4009 struct net_device *dev, 4010 struct cfg80211_gtk_rekey_data *data) 4011 { 4012 struct ieee80211_local *local = wiphy_priv(wiphy); 4013 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4014 4015 if (!local->ops->set_rekey_data) 4016 return -EOPNOTSUPP; 4017 4018 drv_set_rekey_data(local, sdata, data); 4019 4020 return 0; 4021 } 4022 4023 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4024 const u8 *peer, u64 *cookie) 4025 { 4026 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4027 struct ieee80211_local *local = sdata->local; 4028 struct ieee80211_qos_hdr *nullfunc; 4029 struct sk_buff *skb; 4030 int size = sizeof(*nullfunc); 4031 __le16 fc; 4032 bool qos; 4033 struct ieee80211_tx_info *info; 4034 struct sta_info *sta; 4035 struct ieee80211_chanctx_conf *chanctx_conf; 4036 enum nl80211_band band; 4037 int ret; 4038 4039 /* the lock is needed to assign the cookie later */ 4040 mutex_lock(&local->mtx); 4041 4042 rcu_read_lock(); 4043 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4044 if (WARN_ON(!chanctx_conf)) { 4045 ret = -EINVAL; 4046 goto unlock; 4047 } 4048 band = chanctx_conf->def.chan->band; 4049 sta = sta_info_get_bss(sdata, peer); 4050 if (sta) { 4051 qos = sta->sta.wme; 4052 } else { 4053 ret = -ENOLINK; 4054 goto unlock; 4055 } 4056 4057 if (qos) { 4058 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4059 IEEE80211_STYPE_QOS_NULLFUNC | 4060 IEEE80211_FCTL_FROMDS); 4061 } else { 4062 size -= 2; 4063 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4064 IEEE80211_STYPE_NULLFUNC | 4065 IEEE80211_FCTL_FROMDS); 4066 } 4067 4068 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4069 if (!skb) { 4070 ret = -ENOMEM; 4071 goto unlock; 4072 } 4073 4074 skb->dev = dev; 4075 4076 skb_reserve(skb, local->hw.extra_tx_headroom); 4077 4078 nullfunc = skb_put(skb, size); 4079 nullfunc->frame_control = fc; 4080 nullfunc->duration_id = 0; 4081 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4082 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4083 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4084 nullfunc->seq_ctrl = 0; 4085 4086 info = IEEE80211_SKB_CB(skb); 4087 4088 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4089 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4090 info->band = band; 4091 4092 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4093 skb->priority = 7; 4094 if (qos) 4095 nullfunc->qos_ctrl = cpu_to_le16(7); 4096 4097 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4098 if (ret) { 4099 kfree_skb(skb); 4100 goto unlock; 4101 } 4102 4103 local_bh_disable(); 4104 ieee80211_xmit(sdata, sta, skb); 4105 local_bh_enable(); 4106 4107 ret = 0; 4108 unlock: 4109 rcu_read_unlock(); 4110 mutex_unlock(&local->mtx); 4111 4112 return ret; 4113 } 4114 4115 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4116 struct wireless_dev *wdev, 4117 unsigned int link_id, 4118 struct cfg80211_chan_def *chandef) 4119 { 4120 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4121 struct ieee80211_local *local = wiphy_priv(wiphy); 4122 struct ieee80211_chanctx_conf *chanctx_conf; 4123 struct ieee80211_link_data *link; 4124 int ret = -ENODATA; 4125 4126 rcu_read_lock(); 4127 link = rcu_dereference(sdata->link[link_id]); 4128 if (!link) { 4129 ret = -ENOLINK; 4130 goto out; 4131 } 4132 4133 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4134 if (chanctx_conf) { 4135 *chandef = link->conf->chandef; 4136 ret = 0; 4137 } else if (local->open_count > 0 && 4138 local->open_count == local->monitors && 4139 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4140 if (local->use_chanctx) 4141 *chandef = local->monitor_chandef; 4142 else 4143 *chandef = local->_oper_chandef; 4144 ret = 0; 4145 } 4146 out: 4147 rcu_read_unlock(); 4148 4149 return ret; 4150 } 4151 4152 #ifdef CONFIG_PM 4153 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4154 { 4155 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4156 } 4157 #endif 4158 4159 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4160 struct net_device *dev, 4161 struct cfg80211_qos_map *qos_map) 4162 { 4163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4164 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4165 4166 if (qos_map) { 4167 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4168 if (!new_qos_map) 4169 return -ENOMEM; 4170 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4171 } else { 4172 /* A NULL qos_map was passed to disable QoS mapping */ 4173 new_qos_map = NULL; 4174 } 4175 4176 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4177 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4178 if (old_qos_map) 4179 kfree_rcu(old_qos_map, rcu_head); 4180 4181 return 0; 4182 } 4183 4184 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4185 struct net_device *dev, 4186 unsigned int link_id, 4187 struct cfg80211_chan_def *chandef) 4188 { 4189 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4190 struct ieee80211_link_data *link; 4191 int ret; 4192 u64 changed = 0; 4193 4194 link = sdata_dereference(sdata->link[link_id], sdata); 4195 4196 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4197 if (ret == 0) 4198 ieee80211_link_info_change_notify(sdata, link, changed); 4199 4200 return ret; 4201 } 4202 4203 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4204 u8 tsid, const u8 *peer, u8 up, 4205 u16 admitted_time) 4206 { 4207 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4208 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4209 int ac = ieee802_1d_to_ac[up]; 4210 4211 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4212 return -EOPNOTSUPP; 4213 4214 if (!(sdata->wmm_acm & BIT(up))) 4215 return -EINVAL; 4216 4217 if (ifmgd->tx_tspec[ac].admitted_time) 4218 return -EBUSY; 4219 4220 if (admitted_time) { 4221 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4222 ifmgd->tx_tspec[ac].tsid = tsid; 4223 ifmgd->tx_tspec[ac].up = up; 4224 } 4225 4226 return 0; 4227 } 4228 4229 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4230 u8 tsid, const u8 *peer) 4231 { 4232 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4233 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4234 struct ieee80211_local *local = wiphy_priv(wiphy); 4235 int ac; 4236 4237 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4238 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4239 4240 /* skip unused entries */ 4241 if (!tx_tspec->admitted_time) 4242 continue; 4243 4244 if (tx_tspec->tsid != tsid) 4245 continue; 4246 4247 /* due to this new packets will be reassigned to non-ACM ACs */ 4248 tx_tspec->up = -1; 4249 4250 /* Make sure that all packets have been sent to avoid to 4251 * restore the QoS params on packets that are still on the 4252 * queues. 4253 */ 4254 synchronize_net(); 4255 ieee80211_flush_queues(local, sdata, false); 4256 4257 /* restore the normal QoS parameters 4258 * (unconditionally to avoid races) 4259 */ 4260 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4261 tx_tspec->downgraded = false; 4262 ieee80211_sta_handle_tspec_ac_params(sdata); 4263 4264 /* finally clear all the data */ 4265 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4266 4267 return 0; 4268 } 4269 4270 return -ENOENT; 4271 } 4272 4273 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4274 u8 inst_id, 4275 enum nl80211_nan_func_term_reason reason, 4276 gfp_t gfp) 4277 { 4278 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4279 struct cfg80211_nan_func *func; 4280 u64 cookie; 4281 4282 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4283 return; 4284 4285 spin_lock_bh(&sdata->u.nan.func_lock); 4286 4287 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4288 if (WARN_ON(!func)) { 4289 spin_unlock_bh(&sdata->u.nan.func_lock); 4290 return; 4291 } 4292 4293 cookie = func->cookie; 4294 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4295 4296 spin_unlock_bh(&sdata->u.nan.func_lock); 4297 4298 cfg80211_free_nan_func(func); 4299 4300 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4301 reason, cookie, gfp); 4302 } 4303 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4304 4305 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4306 struct cfg80211_nan_match_params *match, 4307 gfp_t gfp) 4308 { 4309 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4310 struct cfg80211_nan_func *func; 4311 4312 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4313 return; 4314 4315 spin_lock_bh(&sdata->u.nan.func_lock); 4316 4317 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4318 if (WARN_ON(!func)) { 4319 spin_unlock_bh(&sdata->u.nan.func_lock); 4320 return; 4321 } 4322 match->cookie = func->cookie; 4323 4324 spin_unlock_bh(&sdata->u.nan.func_lock); 4325 4326 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4327 } 4328 EXPORT_SYMBOL(ieee80211_nan_func_match); 4329 4330 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4331 struct net_device *dev, 4332 const bool enabled) 4333 { 4334 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4335 4336 sdata->u.ap.multicast_to_unicast = enabled; 4337 4338 return 0; 4339 } 4340 4341 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4342 struct txq_info *txqi) 4343 { 4344 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4345 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4346 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4347 } 4348 4349 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4350 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4351 txqstats->backlog_packets = txqi->tin.backlog_packets; 4352 } 4353 4354 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4355 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4356 txqstats->flows = txqi->tin.flows; 4357 } 4358 4359 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4360 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4361 txqstats->drops = txqi->cstats.drop_count; 4362 } 4363 4364 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4365 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4366 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4367 } 4368 4369 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4370 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4371 txqstats->overlimit = txqi->tin.overlimit; 4372 } 4373 4374 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4375 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4376 txqstats->collisions = txqi->tin.collisions; 4377 } 4378 4379 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4380 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4381 txqstats->tx_bytes = txqi->tin.tx_bytes; 4382 } 4383 4384 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4385 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4386 txqstats->tx_packets = txqi->tin.tx_packets; 4387 } 4388 } 4389 4390 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4391 struct wireless_dev *wdev, 4392 struct cfg80211_txq_stats *txqstats) 4393 { 4394 struct ieee80211_local *local = wiphy_priv(wiphy); 4395 struct ieee80211_sub_if_data *sdata; 4396 int ret = 0; 4397 4398 spin_lock_bh(&local->fq.lock); 4399 rcu_read_lock(); 4400 4401 if (wdev) { 4402 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4403 if (!sdata->vif.txq) { 4404 ret = 1; 4405 goto out; 4406 } 4407 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4408 } else { 4409 /* phy stats */ 4410 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4411 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4412 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4413 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4414 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4415 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4416 txqstats->backlog_packets = local->fq.backlog; 4417 txqstats->backlog_bytes = local->fq.memory_usage; 4418 txqstats->overlimit = local->fq.overlimit; 4419 txqstats->overmemory = local->fq.overmemory; 4420 txqstats->collisions = local->fq.collisions; 4421 txqstats->max_flows = local->fq.flows_cnt; 4422 } 4423 4424 out: 4425 rcu_read_unlock(); 4426 spin_unlock_bh(&local->fq.lock); 4427 4428 return ret; 4429 } 4430 4431 static int 4432 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4433 struct net_device *dev, 4434 struct cfg80211_ftm_responder_stats *ftm_stats) 4435 { 4436 struct ieee80211_local *local = wiphy_priv(wiphy); 4437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4438 4439 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4440 } 4441 4442 static int 4443 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4444 struct cfg80211_pmsr_request *request) 4445 { 4446 struct ieee80211_local *local = wiphy_priv(wiphy); 4447 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4448 4449 return drv_start_pmsr(local, sdata, request); 4450 } 4451 4452 static void 4453 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4454 struct cfg80211_pmsr_request *request) 4455 { 4456 struct ieee80211_local *local = wiphy_priv(wiphy); 4457 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4458 4459 return drv_abort_pmsr(local, sdata, request); 4460 } 4461 4462 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4463 struct net_device *dev, 4464 struct cfg80211_tid_config *tid_conf) 4465 { 4466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4467 struct sta_info *sta; 4468 int ret; 4469 4470 if (!sdata->local->ops->set_tid_config) 4471 return -EOPNOTSUPP; 4472 4473 if (!tid_conf->peer) 4474 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4475 4476 mutex_lock(&sdata->local->sta_mtx); 4477 sta = sta_info_get_bss(sdata, tid_conf->peer); 4478 if (!sta) { 4479 mutex_unlock(&sdata->local->sta_mtx); 4480 return -ENOENT; 4481 } 4482 4483 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4484 mutex_unlock(&sdata->local->sta_mtx); 4485 4486 return ret; 4487 } 4488 4489 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4490 struct net_device *dev, 4491 const u8 *peer, u8 tids) 4492 { 4493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4494 struct sta_info *sta; 4495 int ret; 4496 4497 if (!sdata->local->ops->reset_tid_config) 4498 return -EOPNOTSUPP; 4499 4500 if (!peer) 4501 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4502 4503 mutex_lock(&sdata->local->sta_mtx); 4504 sta = sta_info_get_bss(sdata, peer); 4505 if (!sta) { 4506 mutex_unlock(&sdata->local->sta_mtx); 4507 return -ENOENT; 4508 } 4509 4510 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4511 mutex_unlock(&sdata->local->sta_mtx); 4512 4513 return ret; 4514 } 4515 4516 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4517 struct cfg80211_sar_specs *sar) 4518 { 4519 struct ieee80211_local *local = wiphy_priv(wiphy); 4520 4521 if (!local->ops->set_sar_specs) 4522 return -EOPNOTSUPP; 4523 4524 return local->ops->set_sar_specs(&local->hw, sar); 4525 } 4526 4527 static int 4528 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4529 u32 *changed) 4530 { 4531 switch (sdata->vif.type) { 4532 case NL80211_IFTYPE_AP: { 4533 int ret; 4534 4535 if (!sdata->deflink.u.ap.next_beacon) 4536 return -EINVAL; 4537 4538 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4539 sdata->deflink.u.ap.next_beacon, 4540 NULL, NULL); 4541 ieee80211_free_next_beacon(&sdata->deflink); 4542 4543 if (ret < 0) 4544 return ret; 4545 4546 *changed |= ret; 4547 break; 4548 } 4549 default: 4550 WARN_ON_ONCE(1); 4551 return -EINVAL; 4552 } 4553 4554 return 0; 4555 } 4556 4557 static int 4558 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4559 struct cfg80211_color_change_settings *params, 4560 u32 *changed) 4561 { 4562 struct ieee80211_color_change_settings color_change = {}; 4563 int err; 4564 4565 switch (sdata->vif.type) { 4566 case NL80211_IFTYPE_AP: 4567 sdata->deflink.u.ap.next_beacon = 4568 cfg80211_beacon_dup(¶ms->beacon_next); 4569 if (!sdata->deflink.u.ap.next_beacon) 4570 return -ENOMEM; 4571 4572 if (params->count <= 1) 4573 break; 4574 4575 color_change.counter_offset_beacon = 4576 params->counter_offset_beacon; 4577 color_change.counter_offset_presp = 4578 params->counter_offset_presp; 4579 color_change.count = params->count; 4580 4581 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4582 ¶ms->beacon_color_change, 4583 NULL, &color_change); 4584 if (err < 0) { 4585 ieee80211_free_next_beacon(&sdata->deflink); 4586 return err; 4587 } 4588 *changed |= err; 4589 break; 4590 default: 4591 return -EOPNOTSUPP; 4592 } 4593 4594 return 0; 4595 } 4596 4597 static void 4598 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4599 u8 color, int enable, u32 changed) 4600 { 4601 sdata->vif.bss_conf.he_bss_color.color = color; 4602 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4603 changed |= BSS_CHANGED_HE_BSS_COLOR; 4604 4605 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4606 4607 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4608 struct ieee80211_sub_if_data *child; 4609 4610 mutex_lock(&sdata->local->iflist_mtx); 4611 list_for_each_entry(child, &sdata->local->interfaces, list) { 4612 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4613 child->vif.bss_conf.he_bss_color.color = color; 4614 child->vif.bss_conf.he_bss_color.enabled = enable; 4615 ieee80211_link_info_change_notify(child, 4616 &child->deflink, 4617 BSS_CHANGED_HE_BSS_COLOR); 4618 } 4619 } 4620 mutex_unlock(&sdata->local->iflist_mtx); 4621 } 4622 } 4623 4624 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4625 { 4626 struct ieee80211_local *local = sdata->local; 4627 u32 changed = 0; 4628 int err; 4629 4630 sdata_assert_lock(sdata); 4631 lockdep_assert_held(&local->mtx); 4632 4633 sdata->vif.bss_conf.color_change_active = false; 4634 4635 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4636 if (err) { 4637 cfg80211_color_change_aborted_notify(sdata->dev); 4638 return err; 4639 } 4640 4641 ieee80211_color_change_bss_config_notify(sdata, 4642 sdata->vif.bss_conf.color_change_color, 4643 1, changed); 4644 cfg80211_color_change_notify(sdata->dev); 4645 4646 return 0; 4647 } 4648 4649 void ieee80211_color_change_finalize_work(struct work_struct *work) 4650 { 4651 struct ieee80211_sub_if_data *sdata = 4652 container_of(work, struct ieee80211_sub_if_data, 4653 deflink.color_change_finalize_work); 4654 struct ieee80211_local *local = sdata->local; 4655 4656 sdata_lock(sdata); 4657 mutex_lock(&local->mtx); 4658 4659 /* AP might have been stopped while waiting for the lock. */ 4660 if (!sdata->vif.bss_conf.color_change_active) 4661 goto unlock; 4662 4663 if (!ieee80211_sdata_running(sdata)) 4664 goto unlock; 4665 4666 ieee80211_color_change_finalize(sdata); 4667 4668 unlock: 4669 mutex_unlock(&local->mtx); 4670 sdata_unlock(sdata); 4671 } 4672 4673 void ieee80211_color_collision_detection_work(struct work_struct *work) 4674 { 4675 struct delayed_work *delayed_work = to_delayed_work(work); 4676 struct ieee80211_link_data *link = 4677 container_of(delayed_work, struct ieee80211_link_data, 4678 color_collision_detect_work); 4679 struct ieee80211_sub_if_data *sdata = link->sdata; 4680 4681 sdata_lock(sdata); 4682 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4683 sdata_unlock(sdata); 4684 } 4685 4686 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4687 { 4688 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4689 4690 ieee80211_queue_work(&sdata->local->hw, 4691 &sdata->deflink.color_change_finalize_work); 4692 } 4693 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4694 4695 void 4696 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4697 u64 color_bitmap, gfp_t gfp) 4698 { 4699 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4700 struct ieee80211_link_data *link = &sdata->deflink; 4701 4702 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4703 return; 4704 4705 if (delayed_work_pending(&link->color_collision_detect_work)) 4706 return; 4707 4708 link->color_bitmap = color_bitmap; 4709 /* queue the color collision detection event every 500 ms in order to 4710 * avoid sending too much netlink messages to userspace. 4711 */ 4712 ieee80211_queue_delayed_work(&sdata->local->hw, 4713 &link->color_collision_detect_work, 4714 msecs_to_jiffies(500)); 4715 } 4716 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4717 4718 static int 4719 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4720 struct cfg80211_color_change_settings *params) 4721 { 4722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4723 struct ieee80211_local *local = sdata->local; 4724 u32 changed = 0; 4725 int err; 4726 4727 sdata_assert_lock(sdata); 4728 4729 if (sdata->vif.bss_conf.nontransmitted) 4730 return -EINVAL; 4731 4732 mutex_lock(&local->mtx); 4733 4734 /* don't allow another color change if one is already active or if csa 4735 * is active 4736 */ 4737 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4738 err = -EBUSY; 4739 goto out; 4740 } 4741 4742 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4743 if (err) 4744 goto out; 4745 4746 sdata->vif.bss_conf.color_change_active = true; 4747 sdata->vif.bss_conf.color_change_color = params->color; 4748 4749 cfg80211_color_change_started_notify(sdata->dev, params->count); 4750 4751 if (changed) 4752 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4753 else 4754 /* if the beacon didn't change, we can finalize immediately */ 4755 ieee80211_color_change_finalize(sdata); 4756 4757 out: 4758 mutex_unlock(&local->mtx); 4759 4760 return err; 4761 } 4762 4763 static int 4764 ieee80211_set_radar_background(struct wiphy *wiphy, 4765 struct cfg80211_chan_def *chandef) 4766 { 4767 struct ieee80211_local *local = wiphy_priv(wiphy); 4768 4769 if (!local->ops->set_radar_background) 4770 return -EOPNOTSUPP; 4771 4772 return local->ops->set_radar_background(&local->hw, chandef); 4773 } 4774 4775 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4776 struct wireless_dev *wdev, 4777 unsigned int link_id) 4778 { 4779 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4780 4781 if (wdev->use_4addr) 4782 return -EOPNOTSUPP; 4783 4784 return ieee80211_vif_set_links(sdata, wdev->valid_links); 4785 } 4786 4787 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4788 struct wireless_dev *wdev, 4789 unsigned int link_id) 4790 { 4791 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4792 4793 ieee80211_vif_set_links(sdata, wdev->valid_links); 4794 } 4795 4796 static int sta_add_link_station(struct ieee80211_local *local, 4797 struct ieee80211_sub_if_data *sdata, 4798 struct link_station_parameters *params) 4799 { 4800 struct sta_info *sta; 4801 int ret; 4802 4803 sta = sta_info_get_bss(sdata, params->mld_mac); 4804 if (!sta) 4805 return -ENOENT; 4806 4807 if (!sta->sta.valid_links) 4808 return -EINVAL; 4809 4810 if (sta->sta.valid_links & BIT(params->link_id)) 4811 return -EALREADY; 4812 4813 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4814 if (ret) 4815 return ret; 4816 4817 ret = sta_link_apply_parameters(local, sta, true, params); 4818 if (ret) { 4819 ieee80211_sta_free_link(sta, params->link_id); 4820 return ret; 4821 } 4822 4823 /* ieee80211_sta_activate_link frees the link upon failure */ 4824 return ieee80211_sta_activate_link(sta, params->link_id); 4825 } 4826 4827 static int 4828 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4829 struct link_station_parameters *params) 4830 { 4831 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4832 struct ieee80211_local *local = wiphy_priv(wiphy); 4833 int ret; 4834 4835 mutex_lock(&sdata->local->sta_mtx); 4836 ret = sta_add_link_station(local, sdata, params); 4837 mutex_unlock(&sdata->local->sta_mtx); 4838 4839 return ret; 4840 } 4841 4842 static int sta_mod_link_station(struct ieee80211_local *local, 4843 struct ieee80211_sub_if_data *sdata, 4844 struct link_station_parameters *params) 4845 { 4846 struct sta_info *sta; 4847 4848 sta = sta_info_get_bss(sdata, params->mld_mac); 4849 if (!sta) 4850 return -ENOENT; 4851 4852 if (!(sta->sta.valid_links & BIT(params->link_id))) 4853 return -EINVAL; 4854 4855 return sta_link_apply_parameters(local, sta, false, params); 4856 } 4857 4858 static int 4859 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4860 struct link_station_parameters *params) 4861 { 4862 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4863 struct ieee80211_local *local = wiphy_priv(wiphy); 4864 int ret; 4865 4866 mutex_lock(&sdata->local->sta_mtx); 4867 ret = sta_mod_link_station(local, sdata, params); 4868 mutex_unlock(&sdata->local->sta_mtx); 4869 4870 return ret; 4871 } 4872 4873 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4874 struct link_station_del_parameters *params) 4875 { 4876 struct sta_info *sta; 4877 4878 sta = sta_info_get_bss(sdata, params->mld_mac); 4879 if (!sta) 4880 return -ENOENT; 4881 4882 if (!(sta->sta.valid_links & BIT(params->link_id))) 4883 return -EINVAL; 4884 4885 /* must not create a STA without links */ 4886 if (sta->sta.valid_links == BIT(params->link_id)) 4887 return -EINVAL; 4888 4889 ieee80211_sta_remove_link(sta, params->link_id); 4890 4891 return 0; 4892 } 4893 4894 static int 4895 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4896 struct link_station_del_parameters *params) 4897 { 4898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4899 int ret; 4900 4901 mutex_lock(&sdata->local->sta_mtx); 4902 ret = sta_del_link_station(sdata, params); 4903 mutex_unlock(&sdata->local->sta_mtx); 4904 4905 return ret; 4906 } 4907 4908 const struct cfg80211_ops mac80211_config_ops = { 4909 .add_virtual_intf = ieee80211_add_iface, 4910 .del_virtual_intf = ieee80211_del_iface, 4911 .change_virtual_intf = ieee80211_change_iface, 4912 .start_p2p_device = ieee80211_start_p2p_device, 4913 .stop_p2p_device = ieee80211_stop_p2p_device, 4914 .add_key = ieee80211_add_key, 4915 .del_key = ieee80211_del_key, 4916 .get_key = ieee80211_get_key, 4917 .set_default_key = ieee80211_config_default_key, 4918 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4919 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4920 .start_ap = ieee80211_start_ap, 4921 .change_beacon = ieee80211_change_beacon, 4922 .stop_ap = ieee80211_stop_ap, 4923 .add_station = ieee80211_add_station, 4924 .del_station = ieee80211_del_station, 4925 .change_station = ieee80211_change_station, 4926 .get_station = ieee80211_get_station, 4927 .dump_station = ieee80211_dump_station, 4928 .dump_survey = ieee80211_dump_survey, 4929 #ifdef CONFIG_MAC80211_MESH 4930 .add_mpath = ieee80211_add_mpath, 4931 .del_mpath = ieee80211_del_mpath, 4932 .change_mpath = ieee80211_change_mpath, 4933 .get_mpath = ieee80211_get_mpath, 4934 .dump_mpath = ieee80211_dump_mpath, 4935 .get_mpp = ieee80211_get_mpp, 4936 .dump_mpp = ieee80211_dump_mpp, 4937 .update_mesh_config = ieee80211_update_mesh_config, 4938 .get_mesh_config = ieee80211_get_mesh_config, 4939 .join_mesh = ieee80211_join_mesh, 4940 .leave_mesh = ieee80211_leave_mesh, 4941 #endif 4942 .join_ocb = ieee80211_join_ocb, 4943 .leave_ocb = ieee80211_leave_ocb, 4944 .change_bss = ieee80211_change_bss, 4945 .set_txq_params = ieee80211_set_txq_params, 4946 .set_monitor_channel = ieee80211_set_monitor_channel, 4947 .suspend = ieee80211_suspend, 4948 .resume = ieee80211_resume, 4949 .scan = ieee80211_scan, 4950 .abort_scan = ieee80211_abort_scan, 4951 .sched_scan_start = ieee80211_sched_scan_start, 4952 .sched_scan_stop = ieee80211_sched_scan_stop, 4953 .auth = ieee80211_auth, 4954 .assoc = ieee80211_assoc, 4955 .deauth = ieee80211_deauth, 4956 .disassoc = ieee80211_disassoc, 4957 .join_ibss = ieee80211_join_ibss, 4958 .leave_ibss = ieee80211_leave_ibss, 4959 .set_mcast_rate = ieee80211_set_mcast_rate, 4960 .set_wiphy_params = ieee80211_set_wiphy_params, 4961 .set_tx_power = ieee80211_set_tx_power, 4962 .get_tx_power = ieee80211_get_tx_power, 4963 .rfkill_poll = ieee80211_rfkill_poll, 4964 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4965 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4966 .set_power_mgmt = ieee80211_set_power_mgmt, 4967 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4968 .remain_on_channel = ieee80211_remain_on_channel, 4969 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4970 .mgmt_tx = ieee80211_mgmt_tx, 4971 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4972 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4973 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4974 .update_mgmt_frame_registrations = 4975 ieee80211_update_mgmt_frame_registrations, 4976 .set_antenna = ieee80211_set_antenna, 4977 .get_antenna = ieee80211_get_antenna, 4978 .set_rekey_data = ieee80211_set_rekey_data, 4979 .tdls_oper = ieee80211_tdls_oper, 4980 .tdls_mgmt = ieee80211_tdls_mgmt, 4981 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4982 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4983 .probe_client = ieee80211_probe_client, 4984 .set_noack_map = ieee80211_set_noack_map, 4985 #ifdef CONFIG_PM 4986 .set_wakeup = ieee80211_set_wakeup, 4987 #endif 4988 .get_channel = ieee80211_cfg_get_channel, 4989 .start_radar_detection = ieee80211_start_radar_detection, 4990 .end_cac = ieee80211_end_cac, 4991 .channel_switch = ieee80211_channel_switch, 4992 .set_qos_map = ieee80211_set_qos_map, 4993 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4994 .add_tx_ts = ieee80211_add_tx_ts, 4995 .del_tx_ts = ieee80211_del_tx_ts, 4996 .start_nan = ieee80211_start_nan, 4997 .stop_nan = ieee80211_stop_nan, 4998 .nan_change_conf = ieee80211_nan_change_conf, 4999 .add_nan_func = ieee80211_add_nan_func, 5000 .del_nan_func = ieee80211_del_nan_func, 5001 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5002 .tx_control_port = ieee80211_tx_control_port, 5003 .get_txq_stats = ieee80211_get_txq_stats, 5004 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5005 .start_pmsr = ieee80211_start_pmsr, 5006 .abort_pmsr = ieee80211_abort_pmsr, 5007 .probe_mesh_link = ieee80211_probe_mesh_link, 5008 .set_tid_config = ieee80211_set_tid_config, 5009 .reset_tid_config = ieee80211_reset_tid_config, 5010 .set_sar_specs = ieee80211_set_sar_specs, 5011 .color_change = ieee80211_color_change, 5012 .set_radar_background = ieee80211_set_radar_background, 5013 .add_intf_link = ieee80211_add_intf_link, 5014 .del_intf_link = ieee80211_del_intf_link, 5015 .add_link_station = ieee80211_add_link_station, 5016 .mod_link_station = ieee80211_mod_link_station, 5017 .del_link_station = ieee80211_del_link_station, 5018 }; 5019