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 1088 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1089 struct cfg80211_rnr_elems *src) 1090 { 1091 int i, offset = 0; 1092 1093 for (i = 0; i < src->cnt; i++) { 1094 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1095 dst->elem[i].len = src->elem[i].len; 1096 dst->elem[i].data = pos + offset; 1097 offset += dst->elem[i].len; 1098 } 1099 dst->cnt = src->cnt; 1100 1101 return offset; 1102 } 1103 1104 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1105 struct ieee80211_link_data *link, 1106 struct cfg80211_beacon_data *params, 1107 const struct ieee80211_csa_settings *csa, 1108 const struct ieee80211_color_change_settings *cca) 1109 { 1110 struct cfg80211_mbssid_elems *mbssid = NULL; 1111 struct cfg80211_rnr_elems *rnr = NULL; 1112 struct beacon_data *new, *old; 1113 int new_head_len, new_tail_len; 1114 int size, err; 1115 u32 changed = BSS_CHANGED_BEACON; 1116 struct ieee80211_bss_conf *link_conf = link->conf; 1117 1118 old = sdata_dereference(link->u.ap.beacon, sdata); 1119 1120 /* Need to have a beacon head if we don't have one yet */ 1121 if (!params->head && !old) 1122 return -EINVAL; 1123 1124 /* new or old head? */ 1125 if (params->head) 1126 new_head_len = params->head_len; 1127 else 1128 new_head_len = old->head_len; 1129 1130 /* new or old tail? */ 1131 if (params->tail || !old) 1132 /* params->tail_len will be zero for !params->tail */ 1133 new_tail_len = params->tail_len; 1134 else 1135 new_tail_len = old->tail_len; 1136 1137 size = sizeof(*new) + new_head_len + new_tail_len; 1138 1139 /* new or old multiple BSSID elements? */ 1140 if (params->mbssid_ies) { 1141 mbssid = params->mbssid_ies; 1142 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1143 if (params->rnr_ies) { 1144 rnr = params->rnr_ies; 1145 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1146 } 1147 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1148 mbssid->cnt); 1149 } else if (old && old->mbssid_ies) { 1150 mbssid = old->mbssid_ies; 1151 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1152 if (old && old->rnr_ies) { 1153 rnr = old->rnr_ies; 1154 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1155 } 1156 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1157 mbssid->cnt); 1158 } 1159 1160 new = kzalloc(size, GFP_KERNEL); 1161 if (!new) 1162 return -ENOMEM; 1163 1164 /* start filling the new info now */ 1165 1166 /* 1167 * pointers go into the block we allocated, 1168 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1169 */ 1170 new->head = ((u8 *) new) + sizeof(*new); 1171 new->tail = new->head + new_head_len; 1172 new->head_len = new_head_len; 1173 new->tail_len = new_tail_len; 1174 /* copy in optional mbssid_ies */ 1175 if (mbssid) { 1176 u8 *pos = new->tail + new->tail_len; 1177 1178 new->mbssid_ies = (void *)pos; 1179 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1180 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1181 mbssid); 1182 if (rnr) { 1183 new->rnr_ies = (void *)pos; 1184 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1185 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1186 } 1187 /* update bssid_indicator */ 1188 link_conf->bssid_indicator = 1189 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1190 } 1191 1192 if (csa) { 1193 new->cntdwn_current_counter = csa->count; 1194 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1195 csa->n_counter_offsets_beacon * 1196 sizeof(new->cntdwn_counter_offsets[0])); 1197 } else if (cca) { 1198 new->cntdwn_current_counter = cca->count; 1199 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1200 } 1201 1202 /* copy in head */ 1203 if (params->head) 1204 memcpy(new->head, params->head, new_head_len); 1205 else 1206 memcpy(new->head, old->head, new_head_len); 1207 1208 /* copy in optional tail */ 1209 if (params->tail) 1210 memcpy(new->tail, params->tail, new_tail_len); 1211 else 1212 if (old) 1213 memcpy(new->tail, old->tail, new_tail_len); 1214 1215 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1216 params->probe_resp_len, csa, cca, link); 1217 if (err < 0) { 1218 kfree(new); 1219 return err; 1220 } 1221 if (err == 0) 1222 changed |= BSS_CHANGED_AP_PROBE_RESP; 1223 1224 if (params->ftm_responder != -1) { 1225 link_conf->ftm_responder = params->ftm_responder; 1226 err = ieee80211_set_ftm_responder_params(sdata, 1227 params->lci, 1228 params->lci_len, 1229 params->civicloc, 1230 params->civicloc_len, 1231 link_conf); 1232 1233 if (err < 0) { 1234 kfree(new); 1235 return err; 1236 } 1237 1238 changed |= BSS_CHANGED_FTM_RESPONDER; 1239 } 1240 1241 rcu_assign_pointer(link->u.ap.beacon, new); 1242 sdata->u.ap.active = true; 1243 1244 if (old) 1245 kfree_rcu(old, rcu_head); 1246 1247 return changed; 1248 } 1249 1250 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1251 struct cfg80211_ap_settings *params) 1252 { 1253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1254 struct ieee80211_local *local = sdata->local; 1255 struct beacon_data *old; 1256 struct ieee80211_sub_if_data *vlan; 1257 u64 changed = BSS_CHANGED_BEACON_INT | 1258 BSS_CHANGED_BEACON_ENABLED | 1259 BSS_CHANGED_BEACON | 1260 BSS_CHANGED_P2P_PS | 1261 BSS_CHANGED_TXPOWER | 1262 BSS_CHANGED_TWT; 1263 int i, err; 1264 int prev_beacon_int; 1265 unsigned int link_id = params->beacon.link_id; 1266 struct ieee80211_link_data *link; 1267 struct ieee80211_bss_conf *link_conf; 1268 1269 link = sdata_dereference(sdata->link[link_id], sdata); 1270 if (!link) 1271 return -ENOLINK; 1272 1273 link_conf = link->conf; 1274 1275 old = sdata_dereference(link->u.ap.beacon, sdata); 1276 if (old) 1277 return -EALREADY; 1278 1279 if (params->smps_mode != NL80211_SMPS_OFF) 1280 return -ENOTSUPP; 1281 1282 link->smps_mode = IEEE80211_SMPS_OFF; 1283 1284 link->needed_rx_chains = sdata->local->rx_chains; 1285 1286 prev_beacon_int = link_conf->beacon_int; 1287 link_conf->beacon_int = params->beacon_interval; 1288 1289 if (params->ht_cap) 1290 link_conf->ht_ldpc = 1291 params->ht_cap->cap_info & 1292 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1293 1294 if (params->vht_cap) { 1295 link_conf->vht_ldpc = 1296 params->vht_cap->vht_cap_info & 1297 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1298 link_conf->vht_su_beamformer = 1299 params->vht_cap->vht_cap_info & 1300 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1301 link_conf->vht_su_beamformee = 1302 params->vht_cap->vht_cap_info & 1303 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1304 link_conf->vht_mu_beamformer = 1305 params->vht_cap->vht_cap_info & 1306 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1307 link_conf->vht_mu_beamformee = 1308 params->vht_cap->vht_cap_info & 1309 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1310 } 1311 1312 if (params->he_cap && params->he_oper) { 1313 link_conf->he_support = true; 1314 link_conf->htc_trig_based_pkt_ext = 1315 le32_get_bits(params->he_oper->he_oper_params, 1316 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1317 link_conf->frame_time_rts_th = 1318 le32_get_bits(params->he_oper->he_oper_params, 1319 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1320 changed |= BSS_CHANGED_HE_OBSS_PD; 1321 1322 if (params->beacon.he_bss_color.enabled) 1323 changed |= BSS_CHANGED_HE_BSS_COLOR; 1324 } 1325 1326 if (params->he_cap) { 1327 link_conf->he_ldpc = 1328 params->he_cap->phy_cap_info[1] & 1329 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1330 link_conf->he_su_beamformer = 1331 params->he_cap->phy_cap_info[3] & 1332 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1333 link_conf->he_su_beamformee = 1334 params->he_cap->phy_cap_info[4] & 1335 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1336 link_conf->he_mu_beamformer = 1337 params->he_cap->phy_cap_info[4] & 1338 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1339 link_conf->he_full_ul_mumimo = 1340 params->he_cap->phy_cap_info[2] & 1341 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1342 } 1343 1344 if (params->eht_cap) { 1345 if (!link_conf->he_support) 1346 return -EOPNOTSUPP; 1347 1348 link_conf->eht_support = true; 1349 link_conf->eht_puncturing = params->punct_bitmap; 1350 changed |= BSS_CHANGED_EHT_PUNCTURING; 1351 1352 link_conf->eht_su_beamformer = 1353 params->eht_cap->fixed.phy_cap_info[0] & 1354 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1355 link_conf->eht_su_beamformee = 1356 params->eht_cap->fixed.phy_cap_info[0] & 1357 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1358 link_conf->eht_mu_beamformer = 1359 params->eht_cap->fixed.phy_cap_info[7] & 1360 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1361 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1362 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1363 } else { 1364 link_conf->eht_su_beamformer = false; 1365 link_conf->eht_su_beamformee = false; 1366 link_conf->eht_mu_beamformer = false; 1367 } 1368 1369 if (sdata->vif.type == NL80211_IFTYPE_AP && 1370 params->mbssid_config.tx_wdev) { 1371 err = ieee80211_set_ap_mbssid_options(sdata, 1372 params->mbssid_config, 1373 link_conf); 1374 if (err) 1375 return err; 1376 } 1377 1378 mutex_lock(&local->mtx); 1379 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1380 IEEE80211_CHANCTX_SHARED); 1381 if (!err) 1382 ieee80211_link_copy_chanctx_to_vlans(link, false); 1383 mutex_unlock(&local->mtx); 1384 if (err) { 1385 link_conf->beacon_int = prev_beacon_int; 1386 return err; 1387 } 1388 1389 /* 1390 * Apply control port protocol, this allows us to 1391 * not encrypt dynamic WEP control frames. 1392 */ 1393 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1394 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1395 sdata->control_port_over_nl80211 = 1396 params->crypto.control_port_over_nl80211; 1397 sdata->control_port_no_preauth = 1398 params->crypto.control_port_no_preauth; 1399 1400 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1401 vlan->control_port_protocol = 1402 params->crypto.control_port_ethertype; 1403 vlan->control_port_no_encrypt = 1404 params->crypto.control_port_no_encrypt; 1405 vlan->control_port_over_nl80211 = 1406 params->crypto.control_port_over_nl80211; 1407 vlan->control_port_no_preauth = 1408 params->crypto.control_port_no_preauth; 1409 } 1410 1411 link_conf->dtim_period = params->dtim_period; 1412 link_conf->enable_beacon = true; 1413 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1414 link_conf->twt_responder = params->twt_responder; 1415 link_conf->he_obss_pd = params->he_obss_pd; 1416 link_conf->he_bss_color = params->beacon.he_bss_color; 1417 sdata->vif.cfg.s1g = params->chandef.chan->band == 1418 NL80211_BAND_S1GHZ; 1419 1420 sdata->vif.cfg.ssid_len = params->ssid_len; 1421 if (params->ssid_len) 1422 memcpy(sdata->vif.cfg.ssid, params->ssid, 1423 params->ssid_len); 1424 link_conf->hidden_ssid = 1425 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1426 1427 memset(&link_conf->p2p_noa_attr, 0, 1428 sizeof(link_conf->p2p_noa_attr)); 1429 link_conf->p2p_noa_attr.oppps_ctwindow = 1430 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1431 if (params->p2p_opp_ps) 1432 link_conf->p2p_noa_attr.oppps_ctwindow |= 1433 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1434 1435 sdata->beacon_rate_set = false; 1436 if (wiphy_ext_feature_isset(local->hw.wiphy, 1437 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1438 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1439 sdata->beacon_rateidx_mask[i] = 1440 params->beacon_rate.control[i].legacy; 1441 if (sdata->beacon_rateidx_mask[i]) 1442 sdata->beacon_rate_set = true; 1443 } 1444 } 1445 1446 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1447 link_conf->beacon_tx_rate = params->beacon_rate; 1448 1449 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); 1450 if (err < 0) 1451 goto error; 1452 changed |= err; 1453 1454 if (params->fils_discovery.max_interval) { 1455 err = ieee80211_set_fils_discovery(sdata, 1456 ¶ms->fils_discovery, 1457 link, link_conf); 1458 if (err < 0) 1459 goto error; 1460 changed |= BSS_CHANGED_FILS_DISCOVERY; 1461 } 1462 1463 if (params->unsol_bcast_probe_resp.interval) { 1464 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1465 ¶ms->unsol_bcast_probe_resp, 1466 link, link_conf); 1467 if (err < 0) 1468 goto error; 1469 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1470 } 1471 1472 err = drv_start_ap(sdata->local, sdata, link_conf); 1473 if (err) { 1474 old = sdata_dereference(link->u.ap.beacon, sdata); 1475 1476 if (old) 1477 kfree_rcu(old, rcu_head); 1478 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1479 sdata->u.ap.active = false; 1480 goto error; 1481 } 1482 1483 ieee80211_recalc_dtim(local, sdata); 1484 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1485 ieee80211_link_info_change_notify(sdata, link, changed); 1486 1487 netif_carrier_on(dev); 1488 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1489 netif_carrier_on(vlan->dev); 1490 1491 return 0; 1492 1493 error: 1494 mutex_lock(&local->mtx); 1495 ieee80211_link_release_channel(link); 1496 mutex_unlock(&local->mtx); 1497 1498 return err; 1499 } 1500 1501 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1502 struct cfg80211_beacon_data *params) 1503 { 1504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1505 struct ieee80211_link_data *link; 1506 struct beacon_data *old; 1507 int err; 1508 struct ieee80211_bss_conf *link_conf; 1509 1510 sdata_assert_lock(sdata); 1511 1512 link = sdata_dereference(sdata->link[params->link_id], sdata); 1513 if (!link) 1514 return -ENOLINK; 1515 1516 link_conf = link->conf; 1517 1518 /* don't allow changing the beacon while a countdown is in place - offset 1519 * of channel switch counter may change 1520 */ 1521 if (link_conf->csa_active || link_conf->color_change_active) 1522 return -EBUSY; 1523 1524 old = sdata_dereference(link->u.ap.beacon, sdata); 1525 if (!old) 1526 return -ENOENT; 1527 1528 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); 1529 if (err < 0) 1530 return err; 1531 1532 if (params->he_bss_color_valid && 1533 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1534 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1535 err |= BSS_CHANGED_HE_BSS_COLOR; 1536 } 1537 1538 ieee80211_link_info_change_notify(sdata, link, err); 1539 return 0; 1540 } 1541 1542 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1543 { 1544 if (!link->u.ap.next_beacon) 1545 return; 1546 1547 kfree(link->u.ap.next_beacon->mbssid_ies); 1548 kfree(link->u.ap.next_beacon->rnr_ies); 1549 kfree(link->u.ap.next_beacon); 1550 link->u.ap.next_beacon = NULL; 1551 } 1552 1553 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1554 unsigned int link_id) 1555 { 1556 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1557 struct ieee80211_sub_if_data *vlan; 1558 struct ieee80211_local *local = sdata->local; 1559 struct beacon_data *old_beacon; 1560 struct probe_resp *old_probe_resp; 1561 struct fils_discovery_data *old_fils_discovery; 1562 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1563 struct cfg80211_chan_def chandef; 1564 struct ieee80211_link_data *link = 1565 sdata_dereference(sdata->link[link_id], sdata); 1566 struct ieee80211_bss_conf *link_conf = link->conf; 1567 1568 sdata_assert_lock(sdata); 1569 1570 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1571 if (!old_beacon) 1572 return -ENOENT; 1573 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1574 sdata); 1575 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1576 sdata); 1577 old_unsol_bcast_probe_resp = 1578 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1579 sdata); 1580 1581 /* abort any running channel switch */ 1582 mutex_lock(&local->mtx); 1583 link_conf->csa_active = false; 1584 if (link->csa_block_tx) { 1585 ieee80211_wake_vif_queues(local, sdata, 1586 IEEE80211_QUEUE_STOP_REASON_CSA); 1587 link->csa_block_tx = false; 1588 } 1589 1590 mutex_unlock(&local->mtx); 1591 1592 ieee80211_free_next_beacon(link); 1593 1594 /* turn off carrier for this interface and dependent VLANs */ 1595 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1596 netif_carrier_off(vlan->dev); 1597 netif_carrier_off(dev); 1598 1599 /* remove beacon and probe response */ 1600 sdata->u.ap.active = false; 1601 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1602 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1603 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1604 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1605 kfree_rcu(old_beacon, rcu_head); 1606 if (old_probe_resp) 1607 kfree_rcu(old_probe_resp, rcu_head); 1608 if (old_fils_discovery) 1609 kfree_rcu(old_fils_discovery, rcu_head); 1610 if (old_unsol_bcast_probe_resp) 1611 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1612 1613 kfree(link_conf->ftmr_params); 1614 link_conf->ftmr_params = NULL; 1615 1616 sdata->vif.mbssid_tx_vif = NULL; 1617 link_conf->bssid_index = 0; 1618 link_conf->nontransmitted = false; 1619 link_conf->ema_ap = false; 1620 link_conf->bssid_indicator = 0; 1621 1622 __sta_info_flush(sdata, true); 1623 ieee80211_free_keys(sdata, true); 1624 1625 link_conf->enable_beacon = false; 1626 sdata->beacon_rate_set = false; 1627 sdata->vif.cfg.ssid_len = 0; 1628 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1629 ieee80211_link_info_change_notify(sdata, link, 1630 BSS_CHANGED_BEACON_ENABLED); 1631 1632 if (sdata->wdev.cac_started) { 1633 chandef = link_conf->chandef; 1634 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1635 cfg80211_cac_event(sdata->dev, &chandef, 1636 NL80211_RADAR_CAC_ABORTED, 1637 GFP_KERNEL); 1638 } 1639 1640 drv_stop_ap(sdata->local, sdata, link_conf); 1641 1642 /* free all potentially still buffered bcast frames */ 1643 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1644 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1645 1646 mutex_lock(&local->mtx); 1647 ieee80211_link_copy_chanctx_to_vlans(link, true); 1648 ieee80211_link_release_channel(link); 1649 mutex_unlock(&local->mtx); 1650 1651 return 0; 1652 } 1653 1654 static int sta_apply_auth_flags(struct ieee80211_local *local, 1655 struct sta_info *sta, 1656 u32 mask, u32 set) 1657 { 1658 int ret; 1659 1660 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1661 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1662 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1663 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1664 if (ret) 1665 return ret; 1666 } 1667 1668 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1669 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1670 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1671 /* 1672 * When peer becomes associated, init rate control as 1673 * well. Some drivers require rate control initialized 1674 * before drv_sta_state() is called. 1675 */ 1676 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1677 rate_control_rate_init(sta); 1678 1679 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1680 if (ret) 1681 return ret; 1682 } 1683 1684 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1685 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1686 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1687 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1688 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1689 else 1690 ret = 0; 1691 if (ret) 1692 return ret; 1693 } 1694 1695 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1696 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1697 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1698 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1699 if (ret) 1700 return ret; 1701 } 1702 1703 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1704 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1705 test_sta_flag(sta, WLAN_STA_AUTH)) { 1706 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1707 if (ret) 1708 return ret; 1709 } 1710 1711 return 0; 1712 } 1713 1714 static void sta_apply_mesh_params(struct ieee80211_local *local, 1715 struct sta_info *sta, 1716 struct station_parameters *params) 1717 { 1718 #ifdef CONFIG_MAC80211_MESH 1719 struct ieee80211_sub_if_data *sdata = sta->sdata; 1720 u32 changed = 0; 1721 1722 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1723 switch (params->plink_state) { 1724 case NL80211_PLINK_ESTAB: 1725 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1726 changed = mesh_plink_inc_estab_count(sdata); 1727 sta->mesh->plink_state = params->plink_state; 1728 sta->mesh->aid = params->peer_aid; 1729 1730 ieee80211_mps_sta_status_update(sta); 1731 changed |= ieee80211_mps_set_sta_local_pm(sta, 1732 sdata->u.mesh.mshcfg.power_mode); 1733 1734 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1735 /* init at low value */ 1736 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1737 1738 break; 1739 case NL80211_PLINK_LISTEN: 1740 case NL80211_PLINK_BLOCKED: 1741 case NL80211_PLINK_OPN_SNT: 1742 case NL80211_PLINK_OPN_RCVD: 1743 case NL80211_PLINK_CNF_RCVD: 1744 case NL80211_PLINK_HOLDING: 1745 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1746 changed = mesh_plink_dec_estab_count(sdata); 1747 sta->mesh->plink_state = params->plink_state; 1748 1749 ieee80211_mps_sta_status_update(sta); 1750 changed |= ieee80211_mps_set_sta_local_pm(sta, 1751 NL80211_MESH_POWER_UNKNOWN); 1752 break; 1753 default: 1754 /* nothing */ 1755 break; 1756 } 1757 } 1758 1759 switch (params->plink_action) { 1760 case NL80211_PLINK_ACTION_NO_ACTION: 1761 /* nothing */ 1762 break; 1763 case NL80211_PLINK_ACTION_OPEN: 1764 changed |= mesh_plink_open(sta); 1765 break; 1766 case NL80211_PLINK_ACTION_BLOCK: 1767 changed |= mesh_plink_block(sta); 1768 break; 1769 } 1770 1771 if (params->local_pm) 1772 changed |= ieee80211_mps_set_sta_local_pm(sta, 1773 params->local_pm); 1774 1775 ieee80211_mbss_info_change_notify(sdata, changed); 1776 #endif 1777 } 1778 1779 static int sta_link_apply_parameters(struct ieee80211_local *local, 1780 struct sta_info *sta, bool new_link, 1781 struct link_station_parameters *params) 1782 { 1783 int ret = 0; 1784 struct ieee80211_supported_band *sband; 1785 struct ieee80211_sub_if_data *sdata = sta->sdata; 1786 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1787 struct ieee80211_link_data *link = 1788 sdata_dereference(sdata->link[link_id], sdata); 1789 struct link_sta_info *link_sta = 1790 rcu_dereference_protected(sta->link[link_id], 1791 lockdep_is_held(&local->sta_mtx)); 1792 1793 /* 1794 * If there are no changes, then accept a link that doesn't exist, 1795 * unless it's a new link. 1796 */ 1797 if (params->link_id < 0 && !new_link && 1798 !params->link_mac && !params->txpwr_set && 1799 !params->supported_rates_len && 1800 !params->ht_capa && !params->vht_capa && 1801 !params->he_capa && !params->eht_capa && 1802 !params->opmode_notif_used) 1803 return 0; 1804 1805 if (!link || !link_sta) 1806 return -EINVAL; 1807 1808 sband = ieee80211_get_link_sband(link); 1809 if (!sband) 1810 return -EINVAL; 1811 1812 if (params->link_mac) { 1813 if (new_link) { 1814 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1815 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1816 } else if (!ether_addr_equal(link_sta->addr, 1817 params->link_mac)) { 1818 return -EINVAL; 1819 } 1820 } else if (new_link) { 1821 return -EINVAL; 1822 } 1823 1824 if (params->txpwr_set) { 1825 link_sta->pub->txpwr.type = params->txpwr.type; 1826 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1827 link_sta->pub->txpwr.power = params->txpwr.power; 1828 ret = drv_sta_set_txpwr(local, sdata, sta); 1829 if (ret) 1830 return ret; 1831 } 1832 1833 if (params->supported_rates && 1834 params->supported_rates_len) { 1835 ieee80211_parse_bitrates(link->conf->chandef.width, 1836 sband, params->supported_rates, 1837 params->supported_rates_len, 1838 &link_sta->pub->supp_rates[sband->band]); 1839 } 1840 1841 if (params->ht_capa) 1842 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1843 params->ht_capa, link_sta); 1844 1845 /* VHT can override some HT caps such as the A-MSDU max length */ 1846 if (params->vht_capa) 1847 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1848 params->vht_capa, link_sta); 1849 1850 if (params->he_capa) 1851 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1852 (void *)params->he_capa, 1853 params->he_capa_len, 1854 (void *)params->he_6ghz_capa, 1855 link_sta); 1856 1857 if (params->he_capa && params->eht_capa) 1858 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1859 (u8 *)params->he_capa, 1860 params->he_capa_len, 1861 params->eht_capa, 1862 params->eht_capa_len, 1863 link_sta); 1864 1865 if (params->opmode_notif_used) { 1866 /* returned value is only needed for rc update, but the 1867 * rc isn't initialized here yet, so ignore it 1868 */ 1869 __ieee80211_vht_handle_opmode(sdata, link_sta, 1870 params->opmode_notif, 1871 sband->band); 1872 } 1873 1874 return ret; 1875 } 1876 1877 static int sta_apply_parameters(struct ieee80211_local *local, 1878 struct sta_info *sta, 1879 struct station_parameters *params) 1880 { 1881 struct ieee80211_sub_if_data *sdata = sta->sdata; 1882 u32 mask, set; 1883 int ret = 0; 1884 1885 mask = params->sta_flags_mask; 1886 set = params->sta_flags_set; 1887 1888 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1889 /* 1890 * In mesh mode, ASSOCIATED isn't part of the nl80211 1891 * API but must follow AUTHENTICATED for driver state. 1892 */ 1893 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1894 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1895 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1896 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1897 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1898 /* 1899 * TDLS -- everything follows authorized, but 1900 * only becoming authorized is possible, not 1901 * going back 1902 */ 1903 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1904 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1905 BIT(NL80211_STA_FLAG_ASSOCIATED); 1906 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1907 BIT(NL80211_STA_FLAG_ASSOCIATED); 1908 } 1909 } 1910 1911 if (mask & BIT(NL80211_STA_FLAG_WME) && 1912 local->hw.queues >= IEEE80211_NUM_ACS) 1913 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1914 1915 /* auth flags will be set later for TDLS, 1916 * and for unassociated stations that move to associated */ 1917 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1918 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1919 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1920 ret = sta_apply_auth_flags(local, sta, mask, set); 1921 if (ret) 1922 return ret; 1923 } 1924 1925 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1926 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1927 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1928 else 1929 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1930 } 1931 1932 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1933 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1934 if (set & BIT(NL80211_STA_FLAG_MFP)) 1935 set_sta_flag(sta, WLAN_STA_MFP); 1936 else 1937 clear_sta_flag(sta, WLAN_STA_MFP); 1938 } 1939 1940 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1941 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1942 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1943 else 1944 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1945 } 1946 1947 /* mark TDLS channel switch support, if the AP allows it */ 1948 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1949 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1950 params->ext_capab_len >= 4 && 1951 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1952 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1953 1954 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1955 !sdata->u.mgd.tdls_wider_bw_prohibited && 1956 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1957 params->ext_capab_len >= 8 && 1958 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1959 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1960 1961 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1962 sta->sta.uapsd_queues = params->uapsd_queues; 1963 sta->sta.max_sp = params->max_sp; 1964 } 1965 1966 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1967 params->ext_capab_len); 1968 1969 /* 1970 * cfg80211 validates this (1-2007) and allows setting the AID 1971 * only when creating a new station entry 1972 */ 1973 if (params->aid) 1974 sta->sta.aid = params->aid; 1975 1976 /* 1977 * Some of the following updates would be racy if called on an 1978 * existing station, via ieee80211_change_station(). However, 1979 * all such changes are rejected by cfg80211 except for updates 1980 * changing the supported rates on an existing but not yet used 1981 * TDLS peer. 1982 */ 1983 1984 if (params->listen_interval >= 0) 1985 sta->listen_interval = params->listen_interval; 1986 1987 ret = sta_link_apply_parameters(local, sta, false, 1988 ¶ms->link_sta_params); 1989 if (ret) 1990 return ret; 1991 1992 if (params->support_p2p_ps >= 0) 1993 sta->sta.support_p2p_ps = params->support_p2p_ps; 1994 1995 if (ieee80211_vif_is_mesh(&sdata->vif)) 1996 sta_apply_mesh_params(local, sta, params); 1997 1998 if (params->airtime_weight) 1999 sta->airtime_weight = params->airtime_weight; 2000 2001 /* set the STA state after all sta info from usermode has been set */ 2002 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2003 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2004 ret = sta_apply_auth_flags(local, sta, mask, set); 2005 if (ret) 2006 return ret; 2007 } 2008 2009 /* Mark the STA as MLO if MLD MAC address is available */ 2010 if (params->link_sta_params.mld_mac) 2011 sta->sta.mlo = true; 2012 2013 return 0; 2014 } 2015 2016 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2017 const u8 *mac, 2018 struct station_parameters *params) 2019 { 2020 struct ieee80211_local *local = wiphy_priv(wiphy); 2021 struct sta_info *sta; 2022 struct ieee80211_sub_if_data *sdata; 2023 int err; 2024 2025 if (params->vlan) { 2026 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2027 2028 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2029 sdata->vif.type != NL80211_IFTYPE_AP) 2030 return -EINVAL; 2031 } else 2032 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2033 2034 if (ether_addr_equal(mac, sdata->vif.addr)) 2035 return -EINVAL; 2036 2037 if (!is_valid_ether_addr(mac)) 2038 return -EINVAL; 2039 2040 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2041 sdata->vif.type == NL80211_IFTYPE_STATION && 2042 !sdata->u.mgd.associated) 2043 return -EINVAL; 2044 2045 /* 2046 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2047 * but we need to have a link_mac in that case as well, so use the 2048 * STA's MAC address in that case. 2049 */ 2050 if (params->link_sta_params.link_id >= 0) 2051 sta = sta_info_alloc_with_link(sdata, mac, 2052 params->link_sta_params.link_id, 2053 params->link_sta_params.link_mac ?: mac, 2054 GFP_KERNEL); 2055 else 2056 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2057 2058 if (!sta) 2059 return -ENOMEM; 2060 2061 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2062 sta->sta.tdls = true; 2063 2064 /* Though the mutex is not needed here (since the station is not 2065 * visible yet), sta_apply_parameters (and inner functions) require 2066 * the mutex due to other paths. 2067 */ 2068 mutex_lock(&local->sta_mtx); 2069 err = sta_apply_parameters(local, sta, params); 2070 mutex_unlock(&local->sta_mtx); 2071 if (err) { 2072 sta_info_free(local, sta); 2073 return err; 2074 } 2075 2076 /* 2077 * for TDLS and for unassociated station, rate control should be 2078 * initialized only when rates are known and station is marked 2079 * authorized/associated 2080 */ 2081 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2082 test_sta_flag(sta, WLAN_STA_ASSOC)) 2083 rate_control_rate_init(sta); 2084 2085 return sta_info_insert(sta); 2086 } 2087 2088 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2089 struct station_del_parameters *params) 2090 { 2091 struct ieee80211_sub_if_data *sdata; 2092 2093 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2094 2095 if (params->mac) 2096 return sta_info_destroy_addr_bss(sdata, params->mac); 2097 2098 sta_info_flush(sdata); 2099 return 0; 2100 } 2101 2102 static int ieee80211_change_station(struct wiphy *wiphy, 2103 struct net_device *dev, const u8 *mac, 2104 struct station_parameters *params) 2105 { 2106 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2107 struct ieee80211_local *local = wiphy_priv(wiphy); 2108 struct sta_info *sta; 2109 struct ieee80211_sub_if_data *vlansdata; 2110 enum cfg80211_station_type statype; 2111 int err; 2112 2113 mutex_lock(&local->sta_mtx); 2114 2115 sta = sta_info_get_bss(sdata, mac); 2116 if (!sta) { 2117 err = -ENOENT; 2118 goto out_err; 2119 } 2120 2121 switch (sdata->vif.type) { 2122 case NL80211_IFTYPE_MESH_POINT: 2123 if (sdata->u.mesh.user_mpm) 2124 statype = CFG80211_STA_MESH_PEER_USER; 2125 else 2126 statype = CFG80211_STA_MESH_PEER_KERNEL; 2127 break; 2128 case NL80211_IFTYPE_ADHOC: 2129 statype = CFG80211_STA_IBSS; 2130 break; 2131 case NL80211_IFTYPE_STATION: 2132 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2133 statype = CFG80211_STA_AP_STA; 2134 break; 2135 } 2136 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2137 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2138 else 2139 statype = CFG80211_STA_TDLS_PEER_SETUP; 2140 break; 2141 case NL80211_IFTYPE_AP: 2142 case NL80211_IFTYPE_AP_VLAN: 2143 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2144 statype = CFG80211_STA_AP_CLIENT; 2145 else 2146 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2147 break; 2148 default: 2149 err = -EOPNOTSUPP; 2150 goto out_err; 2151 } 2152 2153 err = cfg80211_check_station_change(wiphy, params, statype); 2154 if (err) 2155 goto out_err; 2156 2157 if (params->vlan && params->vlan != sta->sdata->dev) { 2158 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2159 2160 if (params->vlan->ieee80211_ptr->use_4addr) { 2161 if (vlansdata->u.vlan.sta) { 2162 err = -EBUSY; 2163 goto out_err; 2164 } 2165 2166 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2167 __ieee80211_check_fast_rx_iface(vlansdata); 2168 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2169 } 2170 2171 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2172 sta->sdata->u.vlan.sta) { 2173 ieee80211_clear_fast_rx(sta); 2174 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2175 } 2176 2177 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2178 ieee80211_vif_dec_num_mcast(sta->sdata); 2179 2180 sta->sdata = vlansdata; 2181 ieee80211_check_fast_xmit(sta); 2182 2183 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2184 ieee80211_vif_inc_num_mcast(sta->sdata); 2185 cfg80211_send_layer2_update(sta->sdata->dev, 2186 sta->sta.addr); 2187 } 2188 } 2189 2190 /* we use sta_info_get_bss() so this might be different */ 2191 if (sdata != sta->sdata) { 2192 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2193 err = sta_apply_parameters(local, sta, params); 2194 mutex_unlock(&sta->sdata->wdev.mtx); 2195 } else { 2196 err = sta_apply_parameters(local, sta, params); 2197 } 2198 if (err) 2199 goto out_err; 2200 2201 mutex_unlock(&local->sta_mtx); 2202 2203 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2204 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2205 ieee80211_recalc_ps(local); 2206 ieee80211_recalc_ps_vif(sdata); 2207 } 2208 2209 return 0; 2210 out_err: 2211 mutex_unlock(&local->sta_mtx); 2212 return err; 2213 } 2214 2215 #ifdef CONFIG_MAC80211_MESH 2216 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2217 const u8 *dst, const u8 *next_hop) 2218 { 2219 struct ieee80211_sub_if_data *sdata; 2220 struct mesh_path *mpath; 2221 struct sta_info *sta; 2222 2223 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2224 2225 rcu_read_lock(); 2226 sta = sta_info_get(sdata, next_hop); 2227 if (!sta) { 2228 rcu_read_unlock(); 2229 return -ENOENT; 2230 } 2231 2232 mpath = mesh_path_add(sdata, dst); 2233 if (IS_ERR(mpath)) { 2234 rcu_read_unlock(); 2235 return PTR_ERR(mpath); 2236 } 2237 2238 mesh_path_fix_nexthop(mpath, sta); 2239 2240 rcu_read_unlock(); 2241 return 0; 2242 } 2243 2244 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2245 const u8 *dst) 2246 { 2247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2248 2249 if (dst) 2250 return mesh_path_del(sdata, dst); 2251 2252 mesh_path_flush_by_iface(sdata); 2253 return 0; 2254 } 2255 2256 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2257 const u8 *dst, const u8 *next_hop) 2258 { 2259 struct ieee80211_sub_if_data *sdata; 2260 struct mesh_path *mpath; 2261 struct sta_info *sta; 2262 2263 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2264 2265 rcu_read_lock(); 2266 2267 sta = sta_info_get(sdata, next_hop); 2268 if (!sta) { 2269 rcu_read_unlock(); 2270 return -ENOENT; 2271 } 2272 2273 mpath = mesh_path_lookup(sdata, dst); 2274 if (!mpath) { 2275 rcu_read_unlock(); 2276 return -ENOENT; 2277 } 2278 2279 mesh_path_fix_nexthop(mpath, sta); 2280 2281 rcu_read_unlock(); 2282 return 0; 2283 } 2284 2285 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2286 struct mpath_info *pinfo) 2287 { 2288 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2289 2290 if (next_hop_sta) 2291 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2292 else 2293 eth_zero_addr(next_hop); 2294 2295 memset(pinfo, 0, sizeof(*pinfo)); 2296 2297 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2298 2299 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2300 MPATH_INFO_SN | 2301 MPATH_INFO_METRIC | 2302 MPATH_INFO_EXPTIME | 2303 MPATH_INFO_DISCOVERY_TIMEOUT | 2304 MPATH_INFO_DISCOVERY_RETRIES | 2305 MPATH_INFO_FLAGS | 2306 MPATH_INFO_HOP_COUNT | 2307 MPATH_INFO_PATH_CHANGE; 2308 2309 pinfo->frame_qlen = mpath->frame_queue.qlen; 2310 pinfo->sn = mpath->sn; 2311 pinfo->metric = mpath->metric; 2312 if (time_before(jiffies, mpath->exp_time)) 2313 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2314 pinfo->discovery_timeout = 2315 jiffies_to_msecs(mpath->discovery_timeout); 2316 pinfo->discovery_retries = mpath->discovery_retries; 2317 if (mpath->flags & MESH_PATH_ACTIVE) 2318 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2319 if (mpath->flags & MESH_PATH_RESOLVING) 2320 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2321 if (mpath->flags & MESH_PATH_SN_VALID) 2322 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2323 if (mpath->flags & MESH_PATH_FIXED) 2324 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2325 if (mpath->flags & MESH_PATH_RESOLVED) 2326 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2327 pinfo->hop_count = mpath->hop_count; 2328 pinfo->path_change_count = mpath->path_change_count; 2329 } 2330 2331 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2332 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2333 2334 { 2335 struct ieee80211_sub_if_data *sdata; 2336 struct mesh_path *mpath; 2337 2338 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2339 2340 rcu_read_lock(); 2341 mpath = mesh_path_lookup(sdata, dst); 2342 if (!mpath) { 2343 rcu_read_unlock(); 2344 return -ENOENT; 2345 } 2346 memcpy(dst, mpath->dst, ETH_ALEN); 2347 mpath_set_pinfo(mpath, next_hop, pinfo); 2348 rcu_read_unlock(); 2349 return 0; 2350 } 2351 2352 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2353 int idx, u8 *dst, u8 *next_hop, 2354 struct mpath_info *pinfo) 2355 { 2356 struct ieee80211_sub_if_data *sdata; 2357 struct mesh_path *mpath; 2358 2359 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2360 2361 rcu_read_lock(); 2362 mpath = mesh_path_lookup_by_idx(sdata, idx); 2363 if (!mpath) { 2364 rcu_read_unlock(); 2365 return -ENOENT; 2366 } 2367 memcpy(dst, mpath->dst, ETH_ALEN); 2368 mpath_set_pinfo(mpath, next_hop, pinfo); 2369 rcu_read_unlock(); 2370 return 0; 2371 } 2372 2373 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2374 struct mpath_info *pinfo) 2375 { 2376 memset(pinfo, 0, sizeof(*pinfo)); 2377 memcpy(mpp, mpath->mpp, ETH_ALEN); 2378 2379 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2380 } 2381 2382 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2383 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2384 2385 { 2386 struct ieee80211_sub_if_data *sdata; 2387 struct mesh_path *mpath; 2388 2389 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2390 2391 rcu_read_lock(); 2392 mpath = mpp_path_lookup(sdata, dst); 2393 if (!mpath) { 2394 rcu_read_unlock(); 2395 return -ENOENT; 2396 } 2397 memcpy(dst, mpath->dst, ETH_ALEN); 2398 mpp_set_pinfo(mpath, mpp, pinfo); 2399 rcu_read_unlock(); 2400 return 0; 2401 } 2402 2403 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2404 int idx, u8 *dst, u8 *mpp, 2405 struct mpath_info *pinfo) 2406 { 2407 struct ieee80211_sub_if_data *sdata; 2408 struct mesh_path *mpath; 2409 2410 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2411 2412 rcu_read_lock(); 2413 mpath = mpp_path_lookup_by_idx(sdata, idx); 2414 if (!mpath) { 2415 rcu_read_unlock(); 2416 return -ENOENT; 2417 } 2418 memcpy(dst, mpath->dst, ETH_ALEN); 2419 mpp_set_pinfo(mpath, mpp, pinfo); 2420 rcu_read_unlock(); 2421 return 0; 2422 } 2423 2424 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2425 struct net_device *dev, 2426 struct mesh_config *conf) 2427 { 2428 struct ieee80211_sub_if_data *sdata; 2429 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2430 2431 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2432 return 0; 2433 } 2434 2435 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2436 { 2437 return (mask >> (parm-1)) & 0x1; 2438 } 2439 2440 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2441 const struct mesh_setup *setup) 2442 { 2443 u8 *new_ie; 2444 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2445 struct ieee80211_sub_if_data, u.mesh); 2446 int i; 2447 2448 /* allocate information elements */ 2449 new_ie = NULL; 2450 2451 if (setup->ie_len) { 2452 new_ie = kmemdup(setup->ie, setup->ie_len, 2453 GFP_KERNEL); 2454 if (!new_ie) 2455 return -ENOMEM; 2456 } 2457 ifmsh->ie_len = setup->ie_len; 2458 ifmsh->ie = new_ie; 2459 2460 /* now copy the rest of the setup parameters */ 2461 ifmsh->mesh_id_len = setup->mesh_id_len; 2462 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2463 ifmsh->mesh_sp_id = setup->sync_method; 2464 ifmsh->mesh_pp_id = setup->path_sel_proto; 2465 ifmsh->mesh_pm_id = setup->path_metric; 2466 ifmsh->user_mpm = setup->user_mpm; 2467 ifmsh->mesh_auth_id = setup->auth_id; 2468 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2469 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2470 if (setup->is_authenticated) 2471 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2472 if (setup->is_secure) 2473 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2474 2475 /* mcast rate setting in Mesh Node */ 2476 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2477 sizeof(setup->mcast_rate)); 2478 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2479 2480 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2481 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2482 2483 sdata->beacon_rate_set = false; 2484 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2485 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2486 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2487 sdata->beacon_rateidx_mask[i] = 2488 setup->beacon_rate.control[i].legacy; 2489 if (sdata->beacon_rateidx_mask[i]) 2490 sdata->beacon_rate_set = true; 2491 } 2492 } 2493 2494 return 0; 2495 } 2496 2497 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2498 struct net_device *dev, u32 mask, 2499 const struct mesh_config *nconf) 2500 { 2501 struct mesh_config *conf; 2502 struct ieee80211_sub_if_data *sdata; 2503 struct ieee80211_if_mesh *ifmsh; 2504 2505 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2506 ifmsh = &sdata->u.mesh; 2507 2508 /* Set the config options which we are interested in setting */ 2509 conf = &(sdata->u.mesh.mshcfg); 2510 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2511 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2512 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2513 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2514 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2515 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2516 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2517 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2518 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2519 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2520 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2521 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2522 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2523 conf->element_ttl = nconf->element_ttl; 2524 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2525 if (ifmsh->user_mpm) 2526 return -EBUSY; 2527 conf->auto_open_plinks = nconf->auto_open_plinks; 2528 } 2529 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2530 conf->dot11MeshNbrOffsetMaxNeighbor = 2531 nconf->dot11MeshNbrOffsetMaxNeighbor; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2533 conf->dot11MeshHWMPmaxPREQretries = 2534 nconf->dot11MeshHWMPmaxPREQretries; 2535 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2536 conf->path_refresh_time = nconf->path_refresh_time; 2537 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2538 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2539 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2540 conf->dot11MeshHWMPactivePathTimeout = 2541 nconf->dot11MeshHWMPactivePathTimeout; 2542 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2543 conf->dot11MeshHWMPpreqMinInterval = 2544 nconf->dot11MeshHWMPpreqMinInterval; 2545 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2546 conf->dot11MeshHWMPperrMinInterval = 2547 nconf->dot11MeshHWMPperrMinInterval; 2548 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2549 mask)) 2550 conf->dot11MeshHWMPnetDiameterTraversalTime = 2551 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2552 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2553 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2554 ieee80211_mesh_root_setup(ifmsh); 2555 } 2556 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2557 /* our current gate announcement implementation rides on root 2558 * announcements, so require this ifmsh to also be a root node 2559 * */ 2560 if (nconf->dot11MeshGateAnnouncementProtocol && 2561 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2562 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2563 ieee80211_mesh_root_setup(ifmsh); 2564 } 2565 conf->dot11MeshGateAnnouncementProtocol = 2566 nconf->dot11MeshGateAnnouncementProtocol; 2567 } 2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2569 conf->dot11MeshHWMPRannInterval = 2570 nconf->dot11MeshHWMPRannInterval; 2571 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2572 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2573 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2574 /* our RSSI threshold implementation is supported only for 2575 * devices that report signal in dBm. 2576 */ 2577 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2578 return -ENOTSUPP; 2579 conf->rssi_threshold = nconf->rssi_threshold; 2580 } 2581 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2582 conf->ht_opmode = nconf->ht_opmode; 2583 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2584 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2585 BSS_CHANGED_HT); 2586 } 2587 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2588 conf->dot11MeshHWMPactivePathToRootTimeout = 2589 nconf->dot11MeshHWMPactivePathToRootTimeout; 2590 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2591 conf->dot11MeshHWMProotInterval = 2592 nconf->dot11MeshHWMProotInterval; 2593 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2594 conf->dot11MeshHWMPconfirmationInterval = 2595 nconf->dot11MeshHWMPconfirmationInterval; 2596 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2597 conf->power_mode = nconf->power_mode; 2598 ieee80211_mps_local_status_update(sdata); 2599 } 2600 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2601 conf->dot11MeshAwakeWindowDuration = 2602 nconf->dot11MeshAwakeWindowDuration; 2603 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2604 conf->plink_timeout = nconf->plink_timeout; 2605 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2606 conf->dot11MeshConnectedToMeshGate = 2607 nconf->dot11MeshConnectedToMeshGate; 2608 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2609 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2610 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2611 conf->dot11MeshConnectedToAuthServer = 2612 nconf->dot11MeshConnectedToAuthServer; 2613 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2614 return 0; 2615 } 2616 2617 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2618 const struct mesh_config *conf, 2619 const struct mesh_setup *setup) 2620 { 2621 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2622 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2623 int err; 2624 2625 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2626 err = copy_mesh_setup(ifmsh, setup); 2627 if (err) 2628 return err; 2629 2630 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2631 2632 /* can mesh use other SMPS modes? */ 2633 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2634 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2635 2636 mutex_lock(&sdata->local->mtx); 2637 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2638 IEEE80211_CHANCTX_SHARED); 2639 mutex_unlock(&sdata->local->mtx); 2640 if (err) 2641 return err; 2642 2643 return ieee80211_start_mesh(sdata); 2644 } 2645 2646 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2647 { 2648 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2649 2650 ieee80211_stop_mesh(sdata); 2651 mutex_lock(&sdata->local->mtx); 2652 ieee80211_link_release_channel(&sdata->deflink); 2653 kfree(sdata->u.mesh.ie); 2654 mutex_unlock(&sdata->local->mtx); 2655 2656 return 0; 2657 } 2658 #endif 2659 2660 static int ieee80211_change_bss(struct wiphy *wiphy, 2661 struct net_device *dev, 2662 struct bss_parameters *params) 2663 { 2664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2665 struct ieee80211_link_data *link; 2666 struct ieee80211_supported_band *sband; 2667 u32 changed = 0; 2668 2669 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2670 if (IS_ERR(link)) 2671 return PTR_ERR(link); 2672 2673 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2674 return -ENOENT; 2675 2676 sband = ieee80211_get_link_sband(link); 2677 if (!sband) 2678 return -EINVAL; 2679 2680 if (params->basic_rates) { 2681 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2682 wiphy->bands[sband->band], 2683 params->basic_rates, 2684 params->basic_rates_len, 2685 &link->conf->basic_rates)) 2686 return -EINVAL; 2687 changed |= BSS_CHANGED_BASIC_RATES; 2688 ieee80211_check_rate_mask(link); 2689 } 2690 2691 if (params->use_cts_prot >= 0) { 2692 link->conf->use_cts_prot = params->use_cts_prot; 2693 changed |= BSS_CHANGED_ERP_CTS_PROT; 2694 } 2695 if (params->use_short_preamble >= 0) { 2696 link->conf->use_short_preamble = params->use_short_preamble; 2697 changed |= BSS_CHANGED_ERP_PREAMBLE; 2698 } 2699 2700 if (!link->conf->use_short_slot && 2701 (sband->band == NL80211_BAND_5GHZ || 2702 sband->band == NL80211_BAND_6GHZ)) { 2703 link->conf->use_short_slot = true; 2704 changed |= BSS_CHANGED_ERP_SLOT; 2705 } 2706 2707 if (params->use_short_slot_time >= 0) { 2708 link->conf->use_short_slot = params->use_short_slot_time; 2709 changed |= BSS_CHANGED_ERP_SLOT; 2710 } 2711 2712 if (params->ap_isolate >= 0) { 2713 if (params->ap_isolate) 2714 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2715 else 2716 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2717 ieee80211_check_fast_rx_iface(sdata); 2718 } 2719 2720 if (params->ht_opmode >= 0) { 2721 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2722 changed |= BSS_CHANGED_HT; 2723 } 2724 2725 if (params->p2p_ctwindow >= 0) { 2726 link->conf->p2p_noa_attr.oppps_ctwindow &= 2727 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2728 link->conf->p2p_noa_attr.oppps_ctwindow |= 2729 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2730 changed |= BSS_CHANGED_P2P_PS; 2731 } 2732 2733 if (params->p2p_opp_ps > 0) { 2734 link->conf->p2p_noa_attr.oppps_ctwindow |= 2735 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2736 changed |= BSS_CHANGED_P2P_PS; 2737 } else if (params->p2p_opp_ps == 0) { 2738 link->conf->p2p_noa_attr.oppps_ctwindow &= 2739 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2740 changed |= BSS_CHANGED_P2P_PS; 2741 } 2742 2743 ieee80211_link_info_change_notify(sdata, link, changed); 2744 2745 return 0; 2746 } 2747 2748 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2749 struct net_device *dev, 2750 struct ieee80211_txq_params *params) 2751 { 2752 struct ieee80211_local *local = wiphy_priv(wiphy); 2753 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2754 struct ieee80211_link_data *link = 2755 ieee80211_link_or_deflink(sdata, params->link_id, true); 2756 struct ieee80211_tx_queue_params p; 2757 2758 if (!local->ops->conf_tx) 2759 return -EOPNOTSUPP; 2760 2761 if (local->hw.queues < IEEE80211_NUM_ACS) 2762 return -EOPNOTSUPP; 2763 2764 if (IS_ERR(link)) 2765 return PTR_ERR(link); 2766 2767 memset(&p, 0, sizeof(p)); 2768 p.aifs = params->aifs; 2769 p.cw_max = params->cwmax; 2770 p.cw_min = params->cwmin; 2771 p.txop = params->txop; 2772 2773 /* 2774 * Setting tx queue params disables u-apsd because it's only 2775 * called in master mode. 2776 */ 2777 p.uapsd = false; 2778 2779 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2780 2781 link->tx_conf[params->ac] = p; 2782 if (drv_conf_tx(local, link, params->ac, &p)) { 2783 wiphy_debug(local->hw.wiphy, 2784 "failed to set TX queue parameters for AC %d\n", 2785 params->ac); 2786 return -EINVAL; 2787 } 2788 2789 ieee80211_link_info_change_notify(sdata, link, 2790 BSS_CHANGED_QOS); 2791 2792 return 0; 2793 } 2794 2795 #ifdef CONFIG_PM 2796 static int ieee80211_suspend(struct wiphy *wiphy, 2797 struct cfg80211_wowlan *wowlan) 2798 { 2799 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2800 } 2801 2802 static int ieee80211_resume(struct wiphy *wiphy) 2803 { 2804 return __ieee80211_resume(wiphy_priv(wiphy)); 2805 } 2806 #else 2807 #define ieee80211_suspend NULL 2808 #define ieee80211_resume NULL 2809 #endif 2810 2811 static int ieee80211_scan(struct wiphy *wiphy, 2812 struct cfg80211_scan_request *req) 2813 { 2814 struct ieee80211_sub_if_data *sdata; 2815 2816 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2817 2818 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2819 case NL80211_IFTYPE_STATION: 2820 case NL80211_IFTYPE_ADHOC: 2821 case NL80211_IFTYPE_MESH_POINT: 2822 case NL80211_IFTYPE_P2P_CLIENT: 2823 case NL80211_IFTYPE_P2P_DEVICE: 2824 break; 2825 case NL80211_IFTYPE_P2P_GO: 2826 if (sdata->local->ops->hw_scan) 2827 break; 2828 /* 2829 * FIXME: implement NoA while scanning in software, 2830 * for now fall through to allow scanning only when 2831 * beaconing hasn't been configured yet 2832 */ 2833 fallthrough; 2834 case NL80211_IFTYPE_AP: 2835 /* 2836 * If the scan has been forced (and the driver supports 2837 * forcing), don't care about being beaconing already. 2838 * This will create problems to the attached stations (e.g. all 2839 * the frames sent while scanning on other channel will be 2840 * lost) 2841 */ 2842 if (sdata->deflink.u.ap.beacon && 2843 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2844 !(req->flags & NL80211_SCAN_FLAG_AP))) 2845 return -EOPNOTSUPP; 2846 break; 2847 case NL80211_IFTYPE_NAN: 2848 default: 2849 return -EOPNOTSUPP; 2850 } 2851 2852 return ieee80211_request_scan(sdata, req); 2853 } 2854 2855 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2856 { 2857 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2858 } 2859 2860 static int 2861 ieee80211_sched_scan_start(struct wiphy *wiphy, 2862 struct net_device *dev, 2863 struct cfg80211_sched_scan_request *req) 2864 { 2865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2866 2867 if (!sdata->local->ops->sched_scan_start) 2868 return -EOPNOTSUPP; 2869 2870 return ieee80211_request_sched_scan_start(sdata, req); 2871 } 2872 2873 static int 2874 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2875 u64 reqid) 2876 { 2877 struct ieee80211_local *local = wiphy_priv(wiphy); 2878 2879 if (!local->ops->sched_scan_stop) 2880 return -EOPNOTSUPP; 2881 2882 return ieee80211_request_sched_scan_stop(local); 2883 } 2884 2885 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2886 struct cfg80211_auth_request *req) 2887 { 2888 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2889 } 2890 2891 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2892 struct cfg80211_assoc_request *req) 2893 { 2894 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2895 } 2896 2897 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2898 struct cfg80211_deauth_request *req) 2899 { 2900 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2901 } 2902 2903 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2904 struct cfg80211_disassoc_request *req) 2905 { 2906 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2907 } 2908 2909 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2910 struct cfg80211_ibss_params *params) 2911 { 2912 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2913 } 2914 2915 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2916 { 2917 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2918 } 2919 2920 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2921 struct ocb_setup *setup) 2922 { 2923 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2924 } 2925 2926 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2927 { 2928 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2929 } 2930 2931 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2932 int rate[NUM_NL80211_BANDS]) 2933 { 2934 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2935 2936 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2937 sizeof(int) * NUM_NL80211_BANDS); 2938 2939 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2940 BSS_CHANGED_MCAST_RATE); 2941 2942 return 0; 2943 } 2944 2945 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2946 { 2947 struct ieee80211_local *local = wiphy_priv(wiphy); 2948 int err; 2949 2950 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2951 ieee80211_check_fast_xmit_all(local); 2952 2953 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2954 2955 if (err) { 2956 ieee80211_check_fast_xmit_all(local); 2957 return err; 2958 } 2959 } 2960 2961 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2962 (changed & WIPHY_PARAM_DYN_ACK)) { 2963 s16 coverage_class; 2964 2965 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2966 wiphy->coverage_class : -1; 2967 err = drv_set_coverage_class(local, coverage_class); 2968 2969 if (err) 2970 return err; 2971 } 2972 2973 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2974 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2975 2976 if (err) 2977 return err; 2978 } 2979 2980 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2981 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2982 return -EINVAL; 2983 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2984 } 2985 if (changed & WIPHY_PARAM_RETRY_LONG) { 2986 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2987 return -EINVAL; 2988 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2989 } 2990 if (changed & 2991 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2992 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2993 2994 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2995 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2996 WIPHY_PARAM_TXQ_QUANTUM)) 2997 ieee80211_txq_set_params(local); 2998 2999 return 0; 3000 } 3001 3002 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3003 struct wireless_dev *wdev, 3004 enum nl80211_tx_power_setting type, int mbm) 3005 { 3006 struct ieee80211_local *local = wiphy_priv(wiphy); 3007 struct ieee80211_sub_if_data *sdata; 3008 enum nl80211_tx_power_setting txp_type = type; 3009 bool update_txp_type = false; 3010 bool has_monitor = false; 3011 3012 if (wdev) { 3013 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3014 3015 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3016 sdata = wiphy_dereference(local->hw.wiphy, 3017 local->monitor_sdata); 3018 if (!sdata) 3019 return -EOPNOTSUPP; 3020 } 3021 3022 switch (type) { 3023 case NL80211_TX_POWER_AUTOMATIC: 3024 sdata->deflink.user_power_level = 3025 IEEE80211_UNSET_POWER_LEVEL; 3026 txp_type = NL80211_TX_POWER_LIMITED; 3027 break; 3028 case NL80211_TX_POWER_LIMITED: 3029 case NL80211_TX_POWER_FIXED: 3030 if (mbm < 0 || (mbm % 100)) 3031 return -EOPNOTSUPP; 3032 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3033 break; 3034 } 3035 3036 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3037 update_txp_type = true; 3038 sdata->vif.bss_conf.txpower_type = txp_type; 3039 } 3040 3041 ieee80211_recalc_txpower(sdata, update_txp_type); 3042 3043 return 0; 3044 } 3045 3046 switch (type) { 3047 case NL80211_TX_POWER_AUTOMATIC: 3048 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3049 txp_type = NL80211_TX_POWER_LIMITED; 3050 break; 3051 case NL80211_TX_POWER_LIMITED: 3052 case NL80211_TX_POWER_FIXED: 3053 if (mbm < 0 || (mbm % 100)) 3054 return -EOPNOTSUPP; 3055 local->user_power_level = MBM_TO_DBM(mbm); 3056 break; 3057 } 3058 3059 mutex_lock(&local->iflist_mtx); 3060 list_for_each_entry(sdata, &local->interfaces, list) { 3061 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3062 has_monitor = true; 3063 continue; 3064 } 3065 sdata->deflink.user_power_level = local->user_power_level; 3066 if (txp_type != sdata->vif.bss_conf.txpower_type) 3067 update_txp_type = true; 3068 sdata->vif.bss_conf.txpower_type = txp_type; 3069 } 3070 list_for_each_entry(sdata, &local->interfaces, list) { 3071 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3072 continue; 3073 ieee80211_recalc_txpower(sdata, update_txp_type); 3074 } 3075 mutex_unlock(&local->iflist_mtx); 3076 3077 if (has_monitor) { 3078 sdata = wiphy_dereference(local->hw.wiphy, 3079 local->monitor_sdata); 3080 if (sdata) { 3081 sdata->deflink.user_power_level = local->user_power_level; 3082 if (txp_type != sdata->vif.bss_conf.txpower_type) 3083 update_txp_type = true; 3084 sdata->vif.bss_conf.txpower_type = txp_type; 3085 3086 ieee80211_recalc_txpower(sdata, update_txp_type); 3087 } 3088 } 3089 3090 return 0; 3091 } 3092 3093 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3094 struct wireless_dev *wdev, 3095 int *dbm) 3096 { 3097 struct ieee80211_local *local = wiphy_priv(wiphy); 3098 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3099 3100 if (local->ops->get_txpower) 3101 return drv_get_txpower(local, sdata, dbm); 3102 3103 if (!local->use_chanctx) 3104 *dbm = local->hw.conf.power_level; 3105 else 3106 *dbm = sdata->vif.bss_conf.txpower; 3107 3108 return 0; 3109 } 3110 3111 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3112 { 3113 struct ieee80211_local *local = wiphy_priv(wiphy); 3114 3115 drv_rfkill_poll(local); 3116 } 3117 3118 #ifdef CONFIG_NL80211_TESTMODE 3119 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3120 struct wireless_dev *wdev, 3121 void *data, int len) 3122 { 3123 struct ieee80211_local *local = wiphy_priv(wiphy); 3124 struct ieee80211_vif *vif = NULL; 3125 3126 if (!local->ops->testmode_cmd) 3127 return -EOPNOTSUPP; 3128 3129 if (wdev) { 3130 struct ieee80211_sub_if_data *sdata; 3131 3132 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3133 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3134 vif = &sdata->vif; 3135 } 3136 3137 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3138 } 3139 3140 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3141 struct sk_buff *skb, 3142 struct netlink_callback *cb, 3143 void *data, int len) 3144 { 3145 struct ieee80211_local *local = wiphy_priv(wiphy); 3146 3147 if (!local->ops->testmode_dump) 3148 return -EOPNOTSUPP; 3149 3150 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3151 } 3152 #endif 3153 3154 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3155 struct ieee80211_link_data *link, 3156 enum ieee80211_smps_mode smps_mode) 3157 { 3158 const u8 *ap; 3159 enum ieee80211_smps_mode old_req; 3160 int err; 3161 struct sta_info *sta; 3162 bool tdls_peer_found = false; 3163 3164 lockdep_assert_held(&sdata->wdev.mtx); 3165 3166 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3167 return -EINVAL; 3168 3169 old_req = link->u.mgd.req_smps; 3170 link->u.mgd.req_smps = smps_mode; 3171 3172 if (old_req == smps_mode && 3173 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3174 return 0; 3175 3176 /* 3177 * If not associated, or current association is not an HT 3178 * association, there's no need to do anything, just store 3179 * the new value until we associate. 3180 */ 3181 if (!sdata->u.mgd.associated || 3182 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3183 return 0; 3184 3185 ap = link->u.mgd.bssid; 3186 3187 rcu_read_lock(); 3188 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3189 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3190 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3191 continue; 3192 3193 tdls_peer_found = true; 3194 break; 3195 } 3196 rcu_read_unlock(); 3197 3198 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3199 if (tdls_peer_found || !sdata->u.mgd.powersave) 3200 smps_mode = IEEE80211_SMPS_OFF; 3201 else 3202 smps_mode = IEEE80211_SMPS_DYNAMIC; 3203 } 3204 3205 /* send SM PS frame to AP */ 3206 err = ieee80211_send_smps_action(sdata, smps_mode, 3207 ap, ap); 3208 if (err) 3209 link->u.mgd.req_smps = old_req; 3210 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3211 ieee80211_teardown_tdls_peers(sdata); 3212 3213 return err; 3214 } 3215 3216 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3217 bool enabled, int timeout) 3218 { 3219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3220 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3221 unsigned int link_id; 3222 3223 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3224 return -EOPNOTSUPP; 3225 3226 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3227 return -EOPNOTSUPP; 3228 3229 if (enabled == sdata->u.mgd.powersave && 3230 timeout == local->dynamic_ps_forced_timeout) 3231 return 0; 3232 3233 sdata->u.mgd.powersave = enabled; 3234 local->dynamic_ps_forced_timeout = timeout; 3235 3236 /* no change, but if automatic follow powersave */ 3237 sdata_lock(sdata); 3238 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3239 struct ieee80211_link_data *link; 3240 3241 link = sdata_dereference(sdata->link[link_id], sdata); 3242 3243 if (!link) 3244 continue; 3245 __ieee80211_request_smps_mgd(sdata, link, 3246 link->u.mgd.req_smps); 3247 } 3248 sdata_unlock(sdata); 3249 3250 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3251 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3252 3253 ieee80211_recalc_ps(local); 3254 ieee80211_recalc_ps_vif(sdata); 3255 ieee80211_check_fast_rx_iface(sdata); 3256 3257 return 0; 3258 } 3259 3260 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3261 struct net_device *dev, 3262 s32 rssi_thold, u32 rssi_hyst) 3263 { 3264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3265 struct ieee80211_vif *vif = &sdata->vif; 3266 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3267 3268 if (rssi_thold == bss_conf->cqm_rssi_thold && 3269 rssi_hyst == bss_conf->cqm_rssi_hyst) 3270 return 0; 3271 3272 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3273 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3274 return -EOPNOTSUPP; 3275 3276 bss_conf->cqm_rssi_thold = rssi_thold; 3277 bss_conf->cqm_rssi_hyst = rssi_hyst; 3278 bss_conf->cqm_rssi_low = 0; 3279 bss_conf->cqm_rssi_high = 0; 3280 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3281 3282 /* tell the driver upon association, unless already associated */ 3283 if (sdata->u.mgd.associated && 3284 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3285 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3286 BSS_CHANGED_CQM); 3287 3288 return 0; 3289 } 3290 3291 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3292 struct net_device *dev, 3293 s32 rssi_low, s32 rssi_high) 3294 { 3295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3296 struct ieee80211_vif *vif = &sdata->vif; 3297 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3298 3299 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3300 return -EOPNOTSUPP; 3301 3302 bss_conf->cqm_rssi_low = rssi_low; 3303 bss_conf->cqm_rssi_high = rssi_high; 3304 bss_conf->cqm_rssi_thold = 0; 3305 bss_conf->cqm_rssi_hyst = 0; 3306 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3307 3308 /* tell the driver upon association, unless already associated */ 3309 if (sdata->u.mgd.associated && 3310 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3311 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3312 BSS_CHANGED_CQM); 3313 3314 return 0; 3315 } 3316 3317 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3318 struct net_device *dev, 3319 unsigned int link_id, 3320 const u8 *addr, 3321 const struct cfg80211_bitrate_mask *mask) 3322 { 3323 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3324 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3325 int i, ret; 3326 3327 if (!ieee80211_sdata_running(sdata)) 3328 return -ENETDOWN; 3329 3330 /* 3331 * If active validate the setting and reject it if it doesn't leave 3332 * at least one basic rate usable, since we really have to be able 3333 * to send something, and if we're an AP we have to be able to do 3334 * so at a basic rate so that all clients can receive it. 3335 */ 3336 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3337 sdata->vif.bss_conf.chandef.chan) { 3338 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3339 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3340 3341 if (!(mask->control[band].legacy & basic_rates)) 3342 return -EINVAL; 3343 } 3344 3345 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3346 ret = drv_set_bitrate_mask(local, sdata, mask); 3347 if (ret) 3348 return ret; 3349 } 3350 3351 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3352 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3353 int j; 3354 3355 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3356 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3357 sizeof(mask->control[i].ht_mcs)); 3358 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3359 mask->control[i].vht_mcs, 3360 sizeof(mask->control[i].vht_mcs)); 3361 3362 sdata->rc_has_mcs_mask[i] = false; 3363 sdata->rc_has_vht_mcs_mask[i] = false; 3364 if (!sband) 3365 continue; 3366 3367 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3368 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3369 sdata->rc_has_mcs_mask[i] = true; 3370 break; 3371 } 3372 } 3373 3374 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3375 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3376 sdata->rc_has_vht_mcs_mask[i] = true; 3377 break; 3378 } 3379 } 3380 } 3381 3382 return 0; 3383 } 3384 3385 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3386 struct net_device *dev, 3387 struct cfg80211_chan_def *chandef, 3388 u32 cac_time_ms) 3389 { 3390 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3391 struct ieee80211_local *local = sdata->local; 3392 int err; 3393 3394 mutex_lock(&local->mtx); 3395 if (!list_empty(&local->roc_list) || local->scanning) { 3396 err = -EBUSY; 3397 goto out_unlock; 3398 } 3399 3400 /* whatever, but channel contexts should not complain about that one */ 3401 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3402 sdata->deflink.needed_rx_chains = local->rx_chains; 3403 3404 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3405 IEEE80211_CHANCTX_SHARED); 3406 if (err) 3407 goto out_unlock; 3408 3409 ieee80211_queue_delayed_work(&sdata->local->hw, 3410 &sdata->deflink.dfs_cac_timer_work, 3411 msecs_to_jiffies(cac_time_ms)); 3412 3413 out_unlock: 3414 mutex_unlock(&local->mtx); 3415 return err; 3416 } 3417 3418 static void ieee80211_end_cac(struct wiphy *wiphy, 3419 struct net_device *dev) 3420 { 3421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3422 struct ieee80211_local *local = sdata->local; 3423 3424 mutex_lock(&local->mtx); 3425 list_for_each_entry(sdata, &local->interfaces, list) { 3426 /* it might be waiting for the local->mtx, but then 3427 * by the time it gets it, sdata->wdev.cac_started 3428 * will no longer be true 3429 */ 3430 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3431 3432 if (sdata->wdev.cac_started) { 3433 ieee80211_link_release_channel(&sdata->deflink); 3434 sdata->wdev.cac_started = false; 3435 } 3436 } 3437 mutex_unlock(&local->mtx); 3438 } 3439 3440 static struct cfg80211_beacon_data * 3441 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3442 { 3443 struct cfg80211_beacon_data *new_beacon; 3444 u8 *pos; 3445 int len; 3446 3447 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3448 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3449 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3450 3451 if (beacon->mbssid_ies) 3452 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3453 beacon->rnr_ies, 3454 beacon->mbssid_ies->cnt); 3455 3456 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3457 if (!new_beacon) 3458 return NULL; 3459 3460 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3461 new_beacon->mbssid_ies = 3462 kzalloc(struct_size(new_beacon->mbssid_ies, 3463 elem, beacon->mbssid_ies->cnt), 3464 GFP_KERNEL); 3465 if (!new_beacon->mbssid_ies) { 3466 kfree(new_beacon); 3467 return NULL; 3468 } 3469 3470 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3471 new_beacon->rnr_ies = 3472 kzalloc(struct_size(new_beacon->rnr_ies, 3473 elem, beacon->rnr_ies->cnt), 3474 GFP_KERNEL); 3475 if (!new_beacon->rnr_ies) { 3476 kfree(new_beacon->mbssid_ies); 3477 kfree(new_beacon); 3478 return NULL; 3479 } 3480 } 3481 } 3482 3483 pos = (u8 *)(new_beacon + 1); 3484 if (beacon->head_len) { 3485 new_beacon->head_len = beacon->head_len; 3486 new_beacon->head = pos; 3487 memcpy(pos, beacon->head, beacon->head_len); 3488 pos += beacon->head_len; 3489 } 3490 if (beacon->tail_len) { 3491 new_beacon->tail_len = beacon->tail_len; 3492 new_beacon->tail = pos; 3493 memcpy(pos, beacon->tail, beacon->tail_len); 3494 pos += beacon->tail_len; 3495 } 3496 if (beacon->beacon_ies_len) { 3497 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3498 new_beacon->beacon_ies = pos; 3499 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3500 pos += beacon->beacon_ies_len; 3501 } 3502 if (beacon->proberesp_ies_len) { 3503 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3504 new_beacon->proberesp_ies = pos; 3505 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3506 pos += beacon->proberesp_ies_len; 3507 } 3508 if (beacon->assocresp_ies_len) { 3509 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3510 new_beacon->assocresp_ies = pos; 3511 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3512 pos += beacon->assocresp_ies_len; 3513 } 3514 if (beacon->probe_resp_len) { 3515 new_beacon->probe_resp_len = beacon->probe_resp_len; 3516 new_beacon->probe_resp = pos; 3517 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3518 pos += beacon->probe_resp_len; 3519 } 3520 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3521 pos += ieee80211_copy_mbssid_beacon(pos, 3522 new_beacon->mbssid_ies, 3523 beacon->mbssid_ies); 3524 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3525 pos += ieee80211_copy_rnr_beacon(pos, 3526 new_beacon->rnr_ies, 3527 beacon->rnr_ies); 3528 } 3529 3530 /* might copy -1, meaning no changes requested */ 3531 new_beacon->ftm_responder = beacon->ftm_responder; 3532 if (beacon->lci) { 3533 new_beacon->lci_len = beacon->lci_len; 3534 new_beacon->lci = pos; 3535 memcpy(pos, beacon->lci, beacon->lci_len); 3536 pos += beacon->lci_len; 3537 } 3538 if (beacon->civicloc) { 3539 new_beacon->civicloc_len = beacon->civicloc_len; 3540 new_beacon->civicloc = pos; 3541 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3542 pos += beacon->civicloc_len; 3543 } 3544 3545 return new_beacon; 3546 } 3547 3548 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3549 { 3550 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3551 struct ieee80211_local *local = sdata->local; 3552 3553 rcu_read_lock(); 3554 3555 if (vif->mbssid_tx_vif == vif) { 3556 /* Trigger ieee80211_csa_finish() on the non-transmitting 3557 * interfaces when channel switch is received on 3558 * transmitting interface 3559 */ 3560 struct ieee80211_sub_if_data *iter; 3561 3562 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3563 if (!ieee80211_sdata_running(iter)) 3564 continue; 3565 3566 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3567 continue; 3568 3569 ieee80211_queue_work(&iter->local->hw, 3570 &iter->deflink.csa_finalize_work); 3571 } 3572 } 3573 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3574 3575 rcu_read_unlock(); 3576 } 3577 EXPORT_SYMBOL(ieee80211_csa_finish); 3578 3579 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3580 { 3581 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3582 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3583 struct ieee80211_local *local = sdata->local; 3584 3585 sdata->deflink.csa_block_tx = block_tx; 3586 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3587 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3588 } 3589 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3590 3591 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3592 u32 *changed) 3593 { 3594 int err; 3595 3596 switch (sdata->vif.type) { 3597 case NL80211_IFTYPE_AP: 3598 if (!sdata->deflink.u.ap.next_beacon) 3599 return -EINVAL; 3600 3601 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3602 sdata->deflink.u.ap.next_beacon, 3603 NULL, NULL); 3604 ieee80211_free_next_beacon(&sdata->deflink); 3605 3606 if (err < 0) 3607 return err; 3608 *changed |= err; 3609 break; 3610 case NL80211_IFTYPE_ADHOC: 3611 err = ieee80211_ibss_finish_csa(sdata); 3612 if (err < 0) 3613 return err; 3614 *changed |= err; 3615 break; 3616 #ifdef CONFIG_MAC80211_MESH 3617 case NL80211_IFTYPE_MESH_POINT: 3618 err = ieee80211_mesh_finish_csa(sdata); 3619 if (err < 0) 3620 return err; 3621 *changed |= err; 3622 break; 3623 #endif 3624 default: 3625 WARN_ON(1); 3626 return -EINVAL; 3627 } 3628 3629 return 0; 3630 } 3631 3632 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3633 { 3634 struct ieee80211_local *local = sdata->local; 3635 u32 changed = 0; 3636 int err; 3637 3638 sdata_assert_lock(sdata); 3639 lockdep_assert_held(&local->mtx); 3640 lockdep_assert_held(&local->chanctx_mtx); 3641 3642 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3643 sdata->vif.bss_conf.eht_puncturing = 3644 sdata->vif.bss_conf.csa_punct_bitmap; 3645 changed |= BSS_CHANGED_EHT_PUNCTURING; 3646 } 3647 3648 /* 3649 * using reservation isn't immediate as it may be deferred until later 3650 * with multi-vif. once reservation is complete it will re-schedule the 3651 * work with no reserved_chanctx so verify chandef to check if it 3652 * completed successfully 3653 */ 3654 3655 if (sdata->deflink.reserved_chanctx) { 3656 /* 3657 * with multi-vif csa driver may call ieee80211_csa_finish() 3658 * many times while waiting for other interfaces to use their 3659 * reservations 3660 */ 3661 if (sdata->deflink.reserved_ready) 3662 return 0; 3663 3664 return ieee80211_link_use_reserved_context(&sdata->deflink); 3665 } 3666 3667 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3668 &sdata->deflink.csa_chandef)) 3669 return -EINVAL; 3670 3671 sdata->vif.bss_conf.csa_active = false; 3672 3673 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3674 if (err) 3675 return err; 3676 3677 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3678 3679 if (sdata->deflink.csa_block_tx) { 3680 ieee80211_wake_vif_queues(local, sdata, 3681 IEEE80211_QUEUE_STOP_REASON_CSA); 3682 sdata->deflink.csa_block_tx = false; 3683 } 3684 3685 err = drv_post_channel_switch(sdata); 3686 if (err) 3687 return err; 3688 3689 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3690 sdata->vif.bss_conf.eht_puncturing); 3691 3692 return 0; 3693 } 3694 3695 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3696 { 3697 if (__ieee80211_csa_finalize(sdata)) { 3698 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3699 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3700 GFP_KERNEL); 3701 } 3702 } 3703 3704 void ieee80211_csa_finalize_work(struct work_struct *work) 3705 { 3706 struct ieee80211_sub_if_data *sdata = 3707 container_of(work, struct ieee80211_sub_if_data, 3708 deflink.csa_finalize_work); 3709 struct ieee80211_local *local = sdata->local; 3710 3711 sdata_lock(sdata); 3712 mutex_lock(&local->mtx); 3713 mutex_lock(&local->chanctx_mtx); 3714 3715 /* AP might have been stopped while waiting for the lock. */ 3716 if (!sdata->vif.bss_conf.csa_active) 3717 goto unlock; 3718 3719 if (!ieee80211_sdata_running(sdata)) 3720 goto unlock; 3721 3722 ieee80211_csa_finalize(sdata); 3723 3724 unlock: 3725 mutex_unlock(&local->chanctx_mtx); 3726 mutex_unlock(&local->mtx); 3727 sdata_unlock(sdata); 3728 } 3729 3730 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3731 struct cfg80211_csa_settings *params, 3732 u32 *changed) 3733 { 3734 struct ieee80211_csa_settings csa = {}; 3735 int err; 3736 3737 switch (sdata->vif.type) { 3738 case NL80211_IFTYPE_AP: 3739 sdata->deflink.u.ap.next_beacon = 3740 cfg80211_beacon_dup(¶ms->beacon_after); 3741 if (!sdata->deflink.u.ap.next_beacon) 3742 return -ENOMEM; 3743 3744 /* 3745 * With a count of 0, we don't have to wait for any 3746 * TBTT before switching, so complete the CSA 3747 * immediately. In theory, with a count == 1 we 3748 * should delay the switch until just before the next 3749 * TBTT, but that would complicate things so we switch 3750 * immediately too. If we would delay the switch 3751 * until the next TBTT, we would have to set the probe 3752 * response here. 3753 * 3754 * TODO: A channel switch with count <= 1 without 3755 * sending a CSA action frame is kind of useless, 3756 * because the clients won't know we're changing 3757 * channels. The action frame must be implemented 3758 * either here or in the userspace. 3759 */ 3760 if (params->count <= 1) 3761 break; 3762 3763 if ((params->n_counter_offsets_beacon > 3764 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3765 (params->n_counter_offsets_presp > 3766 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3767 ieee80211_free_next_beacon(&sdata->deflink); 3768 return -EINVAL; 3769 } 3770 3771 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3772 csa.counter_offsets_presp = params->counter_offsets_presp; 3773 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3774 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3775 csa.count = params->count; 3776 3777 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3778 ¶ms->beacon_csa, &csa, 3779 NULL); 3780 if (err < 0) { 3781 ieee80211_free_next_beacon(&sdata->deflink); 3782 return err; 3783 } 3784 *changed |= err; 3785 3786 break; 3787 case NL80211_IFTYPE_ADHOC: 3788 if (!sdata->vif.cfg.ibss_joined) 3789 return -EINVAL; 3790 3791 if (params->chandef.width != sdata->u.ibss.chandef.width) 3792 return -EINVAL; 3793 3794 switch (params->chandef.width) { 3795 case NL80211_CHAN_WIDTH_40: 3796 if (cfg80211_get_chandef_type(¶ms->chandef) != 3797 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3798 return -EINVAL; 3799 break; 3800 case NL80211_CHAN_WIDTH_5: 3801 case NL80211_CHAN_WIDTH_10: 3802 case NL80211_CHAN_WIDTH_20_NOHT: 3803 case NL80211_CHAN_WIDTH_20: 3804 break; 3805 default: 3806 return -EINVAL; 3807 } 3808 3809 /* changes into another band are not supported */ 3810 if (sdata->u.ibss.chandef.chan->band != 3811 params->chandef.chan->band) 3812 return -EINVAL; 3813 3814 /* see comments in the NL80211_IFTYPE_AP block */ 3815 if (params->count > 1) { 3816 err = ieee80211_ibss_csa_beacon(sdata, params); 3817 if (err < 0) 3818 return err; 3819 *changed |= err; 3820 } 3821 3822 ieee80211_send_action_csa(sdata, params); 3823 3824 break; 3825 #ifdef CONFIG_MAC80211_MESH 3826 case NL80211_IFTYPE_MESH_POINT: { 3827 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3828 3829 /* changes into another band are not supported */ 3830 if (sdata->vif.bss_conf.chandef.chan->band != 3831 params->chandef.chan->band) 3832 return -EINVAL; 3833 3834 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3835 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3836 if (!ifmsh->pre_value) 3837 ifmsh->pre_value = 1; 3838 else 3839 ifmsh->pre_value++; 3840 } 3841 3842 /* see comments in the NL80211_IFTYPE_AP block */ 3843 if (params->count > 1) { 3844 err = ieee80211_mesh_csa_beacon(sdata, params); 3845 if (err < 0) { 3846 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3847 return err; 3848 } 3849 *changed |= err; 3850 } 3851 3852 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3853 ieee80211_send_action_csa(sdata, params); 3854 3855 break; 3856 } 3857 #endif 3858 default: 3859 return -EOPNOTSUPP; 3860 } 3861 3862 return 0; 3863 } 3864 3865 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3866 { 3867 sdata->vif.bss_conf.color_change_active = false; 3868 3869 ieee80211_free_next_beacon(&sdata->deflink); 3870 3871 cfg80211_color_change_aborted_notify(sdata->dev); 3872 } 3873 3874 static int 3875 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3876 struct cfg80211_csa_settings *params) 3877 { 3878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3879 struct ieee80211_local *local = sdata->local; 3880 struct ieee80211_channel_switch ch_switch; 3881 struct ieee80211_chanctx_conf *conf; 3882 struct ieee80211_chanctx *chanctx; 3883 u32 changed = 0; 3884 int err; 3885 3886 sdata_assert_lock(sdata); 3887 lockdep_assert_held(&local->mtx); 3888 3889 if (!list_empty(&local->roc_list) || local->scanning) 3890 return -EBUSY; 3891 3892 if (sdata->wdev.cac_started) 3893 return -EBUSY; 3894 3895 if (cfg80211_chandef_identical(¶ms->chandef, 3896 &sdata->vif.bss_conf.chandef)) 3897 return -EINVAL; 3898 3899 /* don't allow another channel switch if one is already active. */ 3900 if (sdata->vif.bss_conf.csa_active) 3901 return -EBUSY; 3902 3903 mutex_lock(&local->chanctx_mtx); 3904 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3905 lockdep_is_held(&local->chanctx_mtx)); 3906 if (!conf) { 3907 err = -EBUSY; 3908 goto out; 3909 } 3910 3911 if (params->chandef.chan->freq_offset) { 3912 /* this may work, but is untested */ 3913 err = -EOPNOTSUPP; 3914 goto out; 3915 } 3916 3917 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3918 3919 ch_switch.timestamp = 0; 3920 ch_switch.device_timestamp = 0; 3921 ch_switch.block_tx = params->block_tx; 3922 ch_switch.chandef = params->chandef; 3923 ch_switch.count = params->count; 3924 3925 err = drv_pre_channel_switch(sdata, &ch_switch); 3926 if (err) 3927 goto out; 3928 3929 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3930 chanctx->mode, 3931 params->radar_required); 3932 if (err) 3933 goto out; 3934 3935 /* if reservation is invalid then this will fail */ 3936 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3937 if (err) { 3938 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3939 goto out; 3940 } 3941 3942 /* if there is a color change in progress, abort it */ 3943 if (sdata->vif.bss_conf.color_change_active) 3944 ieee80211_color_change_abort(sdata); 3945 3946 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3947 if (err) { 3948 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3949 goto out; 3950 } 3951 3952 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3953 goto out; 3954 3955 sdata->deflink.csa_chandef = params->chandef; 3956 sdata->deflink.csa_block_tx = params->block_tx; 3957 sdata->vif.bss_conf.csa_active = true; 3958 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3959 3960 if (sdata->deflink.csa_block_tx) 3961 ieee80211_stop_vif_queues(local, sdata, 3962 IEEE80211_QUEUE_STOP_REASON_CSA); 3963 3964 cfg80211_ch_switch_started_notify(sdata->dev, 3965 &sdata->deflink.csa_chandef, 0, 3966 params->count, params->block_tx, 3967 sdata->vif.bss_conf.csa_punct_bitmap); 3968 3969 if (changed) { 3970 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3971 changed); 3972 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3973 } else { 3974 /* if the beacon didn't change, we can finalize immediately */ 3975 ieee80211_csa_finalize(sdata); 3976 } 3977 3978 out: 3979 mutex_unlock(&local->chanctx_mtx); 3980 return err; 3981 } 3982 3983 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3984 struct cfg80211_csa_settings *params) 3985 { 3986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3987 struct ieee80211_local *local = sdata->local; 3988 int err; 3989 3990 mutex_lock(&local->mtx); 3991 err = __ieee80211_channel_switch(wiphy, dev, params); 3992 mutex_unlock(&local->mtx); 3993 3994 return err; 3995 } 3996 3997 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3998 { 3999 lockdep_assert_held(&local->mtx); 4000 4001 local->roc_cookie_counter++; 4002 4003 /* wow, you wrapped 64 bits ... more likely a bug */ 4004 if (WARN_ON(local->roc_cookie_counter == 0)) 4005 local->roc_cookie_counter++; 4006 4007 return local->roc_cookie_counter; 4008 } 4009 4010 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4011 u64 *cookie, gfp_t gfp) 4012 { 4013 unsigned long spin_flags; 4014 struct sk_buff *ack_skb; 4015 int id; 4016 4017 ack_skb = skb_copy(skb, gfp); 4018 if (!ack_skb) 4019 return -ENOMEM; 4020 4021 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4022 id = idr_alloc(&local->ack_status_frames, ack_skb, 4023 1, 0x2000, GFP_ATOMIC); 4024 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4025 4026 if (id < 0) { 4027 kfree_skb(ack_skb); 4028 return -ENOMEM; 4029 } 4030 4031 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4032 4033 *cookie = ieee80211_mgmt_tx_cookie(local); 4034 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4035 4036 return 0; 4037 } 4038 4039 static void 4040 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4041 struct wireless_dev *wdev, 4042 struct mgmt_frame_regs *upd) 4043 { 4044 struct ieee80211_local *local = wiphy_priv(wiphy); 4045 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4046 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4047 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4048 bool global_change, intf_change; 4049 4050 global_change = 4051 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4052 (local->rx_mcast_action_reg != 4053 !!(upd->global_mcast_stypes & action_mask)); 4054 local->probe_req_reg = upd->global_stypes & preq_mask; 4055 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4056 4057 intf_change = (sdata->vif.probe_req_reg != 4058 !!(upd->interface_stypes & preq_mask)) || 4059 (sdata->vif.rx_mcast_action_reg != 4060 !!(upd->interface_mcast_stypes & action_mask)); 4061 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4062 sdata->vif.rx_mcast_action_reg = 4063 upd->interface_mcast_stypes & action_mask; 4064 4065 if (!local->open_count) 4066 return; 4067 4068 if (intf_change && ieee80211_sdata_running(sdata)) 4069 drv_config_iface_filter(local, sdata, 4070 sdata->vif.probe_req_reg ? 4071 FIF_PROBE_REQ : 0, 4072 FIF_PROBE_REQ); 4073 4074 if (global_change) 4075 ieee80211_configure_filter(local); 4076 } 4077 4078 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4079 { 4080 struct ieee80211_local *local = wiphy_priv(wiphy); 4081 4082 if (local->started) 4083 return -EOPNOTSUPP; 4084 4085 return drv_set_antenna(local, tx_ant, rx_ant); 4086 } 4087 4088 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4089 { 4090 struct ieee80211_local *local = wiphy_priv(wiphy); 4091 4092 return drv_get_antenna(local, tx_ant, rx_ant); 4093 } 4094 4095 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4096 struct net_device *dev, 4097 struct cfg80211_gtk_rekey_data *data) 4098 { 4099 struct ieee80211_local *local = wiphy_priv(wiphy); 4100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4101 4102 if (!local->ops->set_rekey_data) 4103 return -EOPNOTSUPP; 4104 4105 drv_set_rekey_data(local, sdata, data); 4106 4107 return 0; 4108 } 4109 4110 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4111 const u8 *peer, u64 *cookie) 4112 { 4113 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4114 struct ieee80211_local *local = sdata->local; 4115 struct ieee80211_qos_hdr *nullfunc; 4116 struct sk_buff *skb; 4117 int size = sizeof(*nullfunc); 4118 __le16 fc; 4119 bool qos; 4120 struct ieee80211_tx_info *info; 4121 struct sta_info *sta; 4122 struct ieee80211_chanctx_conf *chanctx_conf; 4123 enum nl80211_band band; 4124 int ret; 4125 4126 /* the lock is needed to assign the cookie later */ 4127 mutex_lock(&local->mtx); 4128 4129 rcu_read_lock(); 4130 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4131 if (WARN_ON(!chanctx_conf)) { 4132 ret = -EINVAL; 4133 goto unlock; 4134 } 4135 band = chanctx_conf->def.chan->band; 4136 sta = sta_info_get_bss(sdata, peer); 4137 if (sta) { 4138 qos = sta->sta.wme; 4139 } else { 4140 ret = -ENOLINK; 4141 goto unlock; 4142 } 4143 4144 if (qos) { 4145 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4146 IEEE80211_STYPE_QOS_NULLFUNC | 4147 IEEE80211_FCTL_FROMDS); 4148 } else { 4149 size -= 2; 4150 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4151 IEEE80211_STYPE_NULLFUNC | 4152 IEEE80211_FCTL_FROMDS); 4153 } 4154 4155 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4156 if (!skb) { 4157 ret = -ENOMEM; 4158 goto unlock; 4159 } 4160 4161 skb->dev = dev; 4162 4163 skb_reserve(skb, local->hw.extra_tx_headroom); 4164 4165 nullfunc = skb_put(skb, size); 4166 nullfunc->frame_control = fc; 4167 nullfunc->duration_id = 0; 4168 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4169 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4170 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4171 nullfunc->seq_ctrl = 0; 4172 4173 info = IEEE80211_SKB_CB(skb); 4174 4175 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4176 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4177 info->band = band; 4178 4179 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4180 skb->priority = 7; 4181 if (qos) 4182 nullfunc->qos_ctrl = cpu_to_le16(7); 4183 4184 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4185 if (ret) { 4186 kfree_skb(skb); 4187 goto unlock; 4188 } 4189 4190 local_bh_disable(); 4191 ieee80211_xmit(sdata, sta, skb); 4192 local_bh_enable(); 4193 4194 ret = 0; 4195 unlock: 4196 rcu_read_unlock(); 4197 mutex_unlock(&local->mtx); 4198 4199 return ret; 4200 } 4201 4202 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4203 struct wireless_dev *wdev, 4204 unsigned int link_id, 4205 struct cfg80211_chan_def *chandef) 4206 { 4207 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4208 struct ieee80211_local *local = wiphy_priv(wiphy); 4209 struct ieee80211_chanctx_conf *chanctx_conf; 4210 struct ieee80211_link_data *link; 4211 int ret = -ENODATA; 4212 4213 rcu_read_lock(); 4214 link = rcu_dereference(sdata->link[link_id]); 4215 if (!link) { 4216 ret = -ENOLINK; 4217 goto out; 4218 } 4219 4220 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4221 if (chanctx_conf) { 4222 *chandef = link->conf->chandef; 4223 ret = 0; 4224 } else if (local->open_count > 0 && 4225 local->open_count == local->monitors && 4226 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4227 if (local->use_chanctx) 4228 *chandef = local->monitor_chandef; 4229 else 4230 *chandef = local->_oper_chandef; 4231 ret = 0; 4232 } 4233 out: 4234 rcu_read_unlock(); 4235 4236 return ret; 4237 } 4238 4239 #ifdef CONFIG_PM 4240 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4241 { 4242 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4243 } 4244 #endif 4245 4246 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4247 struct net_device *dev, 4248 struct cfg80211_qos_map *qos_map) 4249 { 4250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4251 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4252 4253 if (qos_map) { 4254 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4255 if (!new_qos_map) 4256 return -ENOMEM; 4257 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4258 } else { 4259 /* A NULL qos_map was passed to disable QoS mapping */ 4260 new_qos_map = NULL; 4261 } 4262 4263 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4264 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4265 if (old_qos_map) 4266 kfree_rcu(old_qos_map, rcu_head); 4267 4268 return 0; 4269 } 4270 4271 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4272 struct net_device *dev, 4273 unsigned int link_id, 4274 struct cfg80211_chan_def *chandef) 4275 { 4276 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4277 struct ieee80211_link_data *link; 4278 int ret; 4279 u64 changed = 0; 4280 4281 link = sdata_dereference(sdata->link[link_id], sdata); 4282 4283 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4284 if (ret == 0) 4285 ieee80211_link_info_change_notify(sdata, link, changed); 4286 4287 return ret; 4288 } 4289 4290 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4291 u8 tsid, const u8 *peer, u8 up, 4292 u16 admitted_time) 4293 { 4294 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4295 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4296 int ac = ieee802_1d_to_ac[up]; 4297 4298 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4299 return -EOPNOTSUPP; 4300 4301 if (!(sdata->wmm_acm & BIT(up))) 4302 return -EINVAL; 4303 4304 if (ifmgd->tx_tspec[ac].admitted_time) 4305 return -EBUSY; 4306 4307 if (admitted_time) { 4308 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4309 ifmgd->tx_tspec[ac].tsid = tsid; 4310 ifmgd->tx_tspec[ac].up = up; 4311 } 4312 4313 return 0; 4314 } 4315 4316 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4317 u8 tsid, const u8 *peer) 4318 { 4319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4320 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4321 struct ieee80211_local *local = wiphy_priv(wiphy); 4322 int ac; 4323 4324 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4325 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4326 4327 /* skip unused entries */ 4328 if (!tx_tspec->admitted_time) 4329 continue; 4330 4331 if (tx_tspec->tsid != tsid) 4332 continue; 4333 4334 /* due to this new packets will be reassigned to non-ACM ACs */ 4335 tx_tspec->up = -1; 4336 4337 /* Make sure that all packets have been sent to avoid to 4338 * restore the QoS params on packets that are still on the 4339 * queues. 4340 */ 4341 synchronize_net(); 4342 ieee80211_flush_queues(local, sdata, false); 4343 4344 /* restore the normal QoS parameters 4345 * (unconditionally to avoid races) 4346 */ 4347 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4348 tx_tspec->downgraded = false; 4349 ieee80211_sta_handle_tspec_ac_params(sdata); 4350 4351 /* finally clear all the data */ 4352 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4353 4354 return 0; 4355 } 4356 4357 return -ENOENT; 4358 } 4359 4360 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4361 u8 inst_id, 4362 enum nl80211_nan_func_term_reason reason, 4363 gfp_t gfp) 4364 { 4365 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4366 struct cfg80211_nan_func *func; 4367 u64 cookie; 4368 4369 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4370 return; 4371 4372 spin_lock_bh(&sdata->u.nan.func_lock); 4373 4374 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4375 if (WARN_ON(!func)) { 4376 spin_unlock_bh(&sdata->u.nan.func_lock); 4377 return; 4378 } 4379 4380 cookie = func->cookie; 4381 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4382 4383 spin_unlock_bh(&sdata->u.nan.func_lock); 4384 4385 cfg80211_free_nan_func(func); 4386 4387 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4388 reason, cookie, gfp); 4389 } 4390 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4391 4392 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4393 struct cfg80211_nan_match_params *match, 4394 gfp_t gfp) 4395 { 4396 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4397 struct cfg80211_nan_func *func; 4398 4399 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4400 return; 4401 4402 spin_lock_bh(&sdata->u.nan.func_lock); 4403 4404 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4405 if (WARN_ON(!func)) { 4406 spin_unlock_bh(&sdata->u.nan.func_lock); 4407 return; 4408 } 4409 match->cookie = func->cookie; 4410 4411 spin_unlock_bh(&sdata->u.nan.func_lock); 4412 4413 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4414 } 4415 EXPORT_SYMBOL(ieee80211_nan_func_match); 4416 4417 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4418 struct net_device *dev, 4419 const bool enabled) 4420 { 4421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4422 4423 sdata->u.ap.multicast_to_unicast = enabled; 4424 4425 return 0; 4426 } 4427 4428 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4429 struct txq_info *txqi) 4430 { 4431 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4432 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4433 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4434 } 4435 4436 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4437 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4438 txqstats->backlog_packets = txqi->tin.backlog_packets; 4439 } 4440 4441 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4442 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4443 txqstats->flows = txqi->tin.flows; 4444 } 4445 4446 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4447 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4448 txqstats->drops = txqi->cstats.drop_count; 4449 } 4450 4451 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4452 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4453 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4454 } 4455 4456 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4457 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4458 txqstats->overlimit = txqi->tin.overlimit; 4459 } 4460 4461 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4462 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4463 txqstats->collisions = txqi->tin.collisions; 4464 } 4465 4466 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4467 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4468 txqstats->tx_bytes = txqi->tin.tx_bytes; 4469 } 4470 4471 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4472 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4473 txqstats->tx_packets = txqi->tin.tx_packets; 4474 } 4475 } 4476 4477 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4478 struct wireless_dev *wdev, 4479 struct cfg80211_txq_stats *txqstats) 4480 { 4481 struct ieee80211_local *local = wiphy_priv(wiphy); 4482 struct ieee80211_sub_if_data *sdata; 4483 int ret = 0; 4484 4485 spin_lock_bh(&local->fq.lock); 4486 rcu_read_lock(); 4487 4488 if (wdev) { 4489 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4490 if (!sdata->vif.txq) { 4491 ret = 1; 4492 goto out; 4493 } 4494 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4495 } else { 4496 /* phy stats */ 4497 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4498 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4499 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4500 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4501 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4502 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4503 txqstats->backlog_packets = local->fq.backlog; 4504 txqstats->backlog_bytes = local->fq.memory_usage; 4505 txqstats->overlimit = local->fq.overlimit; 4506 txqstats->overmemory = local->fq.overmemory; 4507 txqstats->collisions = local->fq.collisions; 4508 txqstats->max_flows = local->fq.flows_cnt; 4509 } 4510 4511 out: 4512 rcu_read_unlock(); 4513 spin_unlock_bh(&local->fq.lock); 4514 4515 return ret; 4516 } 4517 4518 static int 4519 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4520 struct net_device *dev, 4521 struct cfg80211_ftm_responder_stats *ftm_stats) 4522 { 4523 struct ieee80211_local *local = wiphy_priv(wiphy); 4524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4525 4526 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4527 } 4528 4529 static int 4530 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4531 struct cfg80211_pmsr_request *request) 4532 { 4533 struct ieee80211_local *local = wiphy_priv(wiphy); 4534 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4535 4536 return drv_start_pmsr(local, sdata, request); 4537 } 4538 4539 static void 4540 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4541 struct cfg80211_pmsr_request *request) 4542 { 4543 struct ieee80211_local *local = wiphy_priv(wiphy); 4544 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4545 4546 return drv_abort_pmsr(local, sdata, request); 4547 } 4548 4549 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4550 struct net_device *dev, 4551 struct cfg80211_tid_config *tid_conf) 4552 { 4553 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4554 struct sta_info *sta; 4555 int ret; 4556 4557 if (!sdata->local->ops->set_tid_config) 4558 return -EOPNOTSUPP; 4559 4560 if (!tid_conf->peer) 4561 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4562 4563 mutex_lock(&sdata->local->sta_mtx); 4564 sta = sta_info_get_bss(sdata, tid_conf->peer); 4565 if (!sta) { 4566 mutex_unlock(&sdata->local->sta_mtx); 4567 return -ENOENT; 4568 } 4569 4570 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4571 mutex_unlock(&sdata->local->sta_mtx); 4572 4573 return ret; 4574 } 4575 4576 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4577 struct net_device *dev, 4578 const u8 *peer, u8 tids) 4579 { 4580 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4581 struct sta_info *sta; 4582 int ret; 4583 4584 if (!sdata->local->ops->reset_tid_config) 4585 return -EOPNOTSUPP; 4586 4587 if (!peer) 4588 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4589 4590 mutex_lock(&sdata->local->sta_mtx); 4591 sta = sta_info_get_bss(sdata, peer); 4592 if (!sta) { 4593 mutex_unlock(&sdata->local->sta_mtx); 4594 return -ENOENT; 4595 } 4596 4597 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4598 mutex_unlock(&sdata->local->sta_mtx); 4599 4600 return ret; 4601 } 4602 4603 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4604 struct cfg80211_sar_specs *sar) 4605 { 4606 struct ieee80211_local *local = wiphy_priv(wiphy); 4607 4608 if (!local->ops->set_sar_specs) 4609 return -EOPNOTSUPP; 4610 4611 return local->ops->set_sar_specs(&local->hw, sar); 4612 } 4613 4614 static int 4615 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4616 u32 *changed) 4617 { 4618 switch (sdata->vif.type) { 4619 case NL80211_IFTYPE_AP: { 4620 int ret; 4621 4622 if (!sdata->deflink.u.ap.next_beacon) 4623 return -EINVAL; 4624 4625 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4626 sdata->deflink.u.ap.next_beacon, 4627 NULL, NULL); 4628 ieee80211_free_next_beacon(&sdata->deflink); 4629 4630 if (ret < 0) 4631 return ret; 4632 4633 *changed |= ret; 4634 break; 4635 } 4636 default: 4637 WARN_ON_ONCE(1); 4638 return -EINVAL; 4639 } 4640 4641 return 0; 4642 } 4643 4644 static int 4645 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4646 struct cfg80211_color_change_settings *params, 4647 u32 *changed) 4648 { 4649 struct ieee80211_color_change_settings color_change = {}; 4650 int err; 4651 4652 switch (sdata->vif.type) { 4653 case NL80211_IFTYPE_AP: 4654 sdata->deflink.u.ap.next_beacon = 4655 cfg80211_beacon_dup(¶ms->beacon_next); 4656 if (!sdata->deflink.u.ap.next_beacon) 4657 return -ENOMEM; 4658 4659 if (params->count <= 1) 4660 break; 4661 4662 color_change.counter_offset_beacon = 4663 params->counter_offset_beacon; 4664 color_change.counter_offset_presp = 4665 params->counter_offset_presp; 4666 color_change.count = params->count; 4667 4668 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4669 ¶ms->beacon_color_change, 4670 NULL, &color_change); 4671 if (err < 0) { 4672 ieee80211_free_next_beacon(&sdata->deflink); 4673 return err; 4674 } 4675 *changed |= err; 4676 break; 4677 default: 4678 return -EOPNOTSUPP; 4679 } 4680 4681 return 0; 4682 } 4683 4684 static void 4685 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4686 u8 color, int enable, u32 changed) 4687 { 4688 sdata->vif.bss_conf.he_bss_color.color = color; 4689 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4690 changed |= BSS_CHANGED_HE_BSS_COLOR; 4691 4692 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4693 4694 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4695 struct ieee80211_sub_if_data *child; 4696 4697 mutex_lock(&sdata->local->iflist_mtx); 4698 list_for_each_entry(child, &sdata->local->interfaces, list) { 4699 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4700 child->vif.bss_conf.he_bss_color.color = color; 4701 child->vif.bss_conf.he_bss_color.enabled = enable; 4702 ieee80211_link_info_change_notify(child, 4703 &child->deflink, 4704 BSS_CHANGED_HE_BSS_COLOR); 4705 } 4706 } 4707 mutex_unlock(&sdata->local->iflist_mtx); 4708 } 4709 } 4710 4711 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4712 { 4713 struct ieee80211_local *local = sdata->local; 4714 u32 changed = 0; 4715 int err; 4716 4717 sdata_assert_lock(sdata); 4718 lockdep_assert_held(&local->mtx); 4719 4720 sdata->vif.bss_conf.color_change_active = false; 4721 4722 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4723 if (err) { 4724 cfg80211_color_change_aborted_notify(sdata->dev); 4725 return err; 4726 } 4727 4728 ieee80211_color_change_bss_config_notify(sdata, 4729 sdata->vif.bss_conf.color_change_color, 4730 1, changed); 4731 cfg80211_color_change_notify(sdata->dev); 4732 4733 return 0; 4734 } 4735 4736 void ieee80211_color_change_finalize_work(struct work_struct *work) 4737 { 4738 struct ieee80211_sub_if_data *sdata = 4739 container_of(work, struct ieee80211_sub_if_data, 4740 deflink.color_change_finalize_work); 4741 struct ieee80211_local *local = sdata->local; 4742 4743 sdata_lock(sdata); 4744 mutex_lock(&local->mtx); 4745 4746 /* AP might have been stopped while waiting for the lock. */ 4747 if (!sdata->vif.bss_conf.color_change_active) 4748 goto unlock; 4749 4750 if (!ieee80211_sdata_running(sdata)) 4751 goto unlock; 4752 4753 ieee80211_color_change_finalize(sdata); 4754 4755 unlock: 4756 mutex_unlock(&local->mtx); 4757 sdata_unlock(sdata); 4758 } 4759 4760 void ieee80211_color_collision_detection_work(struct work_struct *work) 4761 { 4762 struct delayed_work *delayed_work = to_delayed_work(work); 4763 struct ieee80211_link_data *link = 4764 container_of(delayed_work, struct ieee80211_link_data, 4765 color_collision_detect_work); 4766 struct ieee80211_sub_if_data *sdata = link->sdata; 4767 4768 sdata_lock(sdata); 4769 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4770 sdata_unlock(sdata); 4771 } 4772 4773 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4774 { 4775 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4776 4777 ieee80211_queue_work(&sdata->local->hw, 4778 &sdata->deflink.color_change_finalize_work); 4779 } 4780 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4781 4782 void 4783 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4784 u64 color_bitmap, gfp_t gfp) 4785 { 4786 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4787 struct ieee80211_link_data *link = &sdata->deflink; 4788 4789 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4790 return; 4791 4792 if (delayed_work_pending(&link->color_collision_detect_work)) 4793 return; 4794 4795 link->color_bitmap = color_bitmap; 4796 /* queue the color collision detection event every 500 ms in order to 4797 * avoid sending too much netlink messages to userspace. 4798 */ 4799 ieee80211_queue_delayed_work(&sdata->local->hw, 4800 &link->color_collision_detect_work, 4801 msecs_to_jiffies(500)); 4802 } 4803 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4804 4805 static int 4806 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4807 struct cfg80211_color_change_settings *params) 4808 { 4809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4810 struct ieee80211_local *local = sdata->local; 4811 u32 changed = 0; 4812 int err; 4813 4814 sdata_assert_lock(sdata); 4815 4816 if (sdata->vif.bss_conf.nontransmitted) 4817 return -EINVAL; 4818 4819 mutex_lock(&local->mtx); 4820 4821 /* don't allow another color change if one is already active or if csa 4822 * is active 4823 */ 4824 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4825 err = -EBUSY; 4826 goto out; 4827 } 4828 4829 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4830 if (err) 4831 goto out; 4832 4833 sdata->vif.bss_conf.color_change_active = true; 4834 sdata->vif.bss_conf.color_change_color = params->color; 4835 4836 cfg80211_color_change_started_notify(sdata->dev, params->count); 4837 4838 if (changed) 4839 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4840 else 4841 /* if the beacon didn't change, we can finalize immediately */ 4842 ieee80211_color_change_finalize(sdata); 4843 4844 out: 4845 mutex_unlock(&local->mtx); 4846 4847 return err; 4848 } 4849 4850 static int 4851 ieee80211_set_radar_background(struct wiphy *wiphy, 4852 struct cfg80211_chan_def *chandef) 4853 { 4854 struct ieee80211_local *local = wiphy_priv(wiphy); 4855 4856 if (!local->ops->set_radar_background) 4857 return -EOPNOTSUPP; 4858 4859 return local->ops->set_radar_background(&local->hw, chandef); 4860 } 4861 4862 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4863 struct wireless_dev *wdev, 4864 unsigned int link_id) 4865 { 4866 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4867 4868 if (wdev->use_4addr) 4869 return -EOPNOTSUPP; 4870 4871 return ieee80211_vif_set_links(sdata, wdev->valid_links); 4872 } 4873 4874 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4875 struct wireless_dev *wdev, 4876 unsigned int link_id) 4877 { 4878 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4879 4880 ieee80211_vif_set_links(sdata, wdev->valid_links); 4881 } 4882 4883 static int sta_add_link_station(struct ieee80211_local *local, 4884 struct ieee80211_sub_if_data *sdata, 4885 struct link_station_parameters *params) 4886 { 4887 struct sta_info *sta; 4888 int ret; 4889 4890 sta = sta_info_get_bss(sdata, params->mld_mac); 4891 if (!sta) 4892 return -ENOENT; 4893 4894 if (!sta->sta.valid_links) 4895 return -EINVAL; 4896 4897 if (sta->sta.valid_links & BIT(params->link_id)) 4898 return -EALREADY; 4899 4900 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4901 if (ret) 4902 return ret; 4903 4904 ret = sta_link_apply_parameters(local, sta, true, params); 4905 if (ret) { 4906 ieee80211_sta_free_link(sta, params->link_id); 4907 return ret; 4908 } 4909 4910 /* ieee80211_sta_activate_link frees the link upon failure */ 4911 return ieee80211_sta_activate_link(sta, params->link_id); 4912 } 4913 4914 static int 4915 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4916 struct link_station_parameters *params) 4917 { 4918 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4919 struct ieee80211_local *local = wiphy_priv(wiphy); 4920 int ret; 4921 4922 mutex_lock(&sdata->local->sta_mtx); 4923 ret = sta_add_link_station(local, sdata, params); 4924 mutex_unlock(&sdata->local->sta_mtx); 4925 4926 return ret; 4927 } 4928 4929 static int sta_mod_link_station(struct ieee80211_local *local, 4930 struct ieee80211_sub_if_data *sdata, 4931 struct link_station_parameters *params) 4932 { 4933 struct sta_info *sta; 4934 4935 sta = sta_info_get_bss(sdata, params->mld_mac); 4936 if (!sta) 4937 return -ENOENT; 4938 4939 if (!(sta->sta.valid_links & BIT(params->link_id))) 4940 return -EINVAL; 4941 4942 return sta_link_apply_parameters(local, sta, false, params); 4943 } 4944 4945 static int 4946 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4947 struct link_station_parameters *params) 4948 { 4949 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4950 struct ieee80211_local *local = wiphy_priv(wiphy); 4951 int ret; 4952 4953 mutex_lock(&sdata->local->sta_mtx); 4954 ret = sta_mod_link_station(local, sdata, params); 4955 mutex_unlock(&sdata->local->sta_mtx); 4956 4957 return ret; 4958 } 4959 4960 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4961 struct link_station_del_parameters *params) 4962 { 4963 struct sta_info *sta; 4964 4965 sta = sta_info_get_bss(sdata, params->mld_mac); 4966 if (!sta) 4967 return -ENOENT; 4968 4969 if (!(sta->sta.valid_links & BIT(params->link_id))) 4970 return -EINVAL; 4971 4972 /* must not create a STA without links */ 4973 if (sta->sta.valid_links == BIT(params->link_id)) 4974 return -EINVAL; 4975 4976 ieee80211_sta_remove_link(sta, params->link_id); 4977 4978 return 0; 4979 } 4980 4981 static int 4982 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4983 struct link_station_del_parameters *params) 4984 { 4985 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4986 int ret; 4987 4988 mutex_lock(&sdata->local->sta_mtx); 4989 ret = sta_del_link_station(sdata, params); 4990 mutex_unlock(&sdata->local->sta_mtx); 4991 4992 return ret; 4993 } 4994 4995 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4996 struct net_device *dev, 4997 struct cfg80211_set_hw_timestamp *hwts) 4998 { 4999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5000 struct ieee80211_local *local = sdata->local; 5001 5002 if (!local->ops->set_hw_timestamp) 5003 return -EOPNOTSUPP; 5004 5005 if (!check_sdata_in_driver(sdata)) 5006 return -EIO; 5007 5008 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5009 } 5010 5011 const struct cfg80211_ops mac80211_config_ops = { 5012 .add_virtual_intf = ieee80211_add_iface, 5013 .del_virtual_intf = ieee80211_del_iface, 5014 .change_virtual_intf = ieee80211_change_iface, 5015 .start_p2p_device = ieee80211_start_p2p_device, 5016 .stop_p2p_device = ieee80211_stop_p2p_device, 5017 .add_key = ieee80211_add_key, 5018 .del_key = ieee80211_del_key, 5019 .get_key = ieee80211_get_key, 5020 .set_default_key = ieee80211_config_default_key, 5021 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5022 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5023 .start_ap = ieee80211_start_ap, 5024 .change_beacon = ieee80211_change_beacon, 5025 .stop_ap = ieee80211_stop_ap, 5026 .add_station = ieee80211_add_station, 5027 .del_station = ieee80211_del_station, 5028 .change_station = ieee80211_change_station, 5029 .get_station = ieee80211_get_station, 5030 .dump_station = ieee80211_dump_station, 5031 .dump_survey = ieee80211_dump_survey, 5032 #ifdef CONFIG_MAC80211_MESH 5033 .add_mpath = ieee80211_add_mpath, 5034 .del_mpath = ieee80211_del_mpath, 5035 .change_mpath = ieee80211_change_mpath, 5036 .get_mpath = ieee80211_get_mpath, 5037 .dump_mpath = ieee80211_dump_mpath, 5038 .get_mpp = ieee80211_get_mpp, 5039 .dump_mpp = ieee80211_dump_mpp, 5040 .update_mesh_config = ieee80211_update_mesh_config, 5041 .get_mesh_config = ieee80211_get_mesh_config, 5042 .join_mesh = ieee80211_join_mesh, 5043 .leave_mesh = ieee80211_leave_mesh, 5044 #endif 5045 .join_ocb = ieee80211_join_ocb, 5046 .leave_ocb = ieee80211_leave_ocb, 5047 .change_bss = ieee80211_change_bss, 5048 .set_txq_params = ieee80211_set_txq_params, 5049 .set_monitor_channel = ieee80211_set_monitor_channel, 5050 .suspend = ieee80211_suspend, 5051 .resume = ieee80211_resume, 5052 .scan = ieee80211_scan, 5053 .abort_scan = ieee80211_abort_scan, 5054 .sched_scan_start = ieee80211_sched_scan_start, 5055 .sched_scan_stop = ieee80211_sched_scan_stop, 5056 .auth = ieee80211_auth, 5057 .assoc = ieee80211_assoc, 5058 .deauth = ieee80211_deauth, 5059 .disassoc = ieee80211_disassoc, 5060 .join_ibss = ieee80211_join_ibss, 5061 .leave_ibss = ieee80211_leave_ibss, 5062 .set_mcast_rate = ieee80211_set_mcast_rate, 5063 .set_wiphy_params = ieee80211_set_wiphy_params, 5064 .set_tx_power = ieee80211_set_tx_power, 5065 .get_tx_power = ieee80211_get_tx_power, 5066 .rfkill_poll = ieee80211_rfkill_poll, 5067 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5068 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5069 .set_power_mgmt = ieee80211_set_power_mgmt, 5070 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5071 .remain_on_channel = ieee80211_remain_on_channel, 5072 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5073 .mgmt_tx = ieee80211_mgmt_tx, 5074 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5075 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5076 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5077 .update_mgmt_frame_registrations = 5078 ieee80211_update_mgmt_frame_registrations, 5079 .set_antenna = ieee80211_set_antenna, 5080 .get_antenna = ieee80211_get_antenna, 5081 .set_rekey_data = ieee80211_set_rekey_data, 5082 .tdls_oper = ieee80211_tdls_oper, 5083 .tdls_mgmt = ieee80211_tdls_mgmt, 5084 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5085 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5086 .probe_client = ieee80211_probe_client, 5087 .set_noack_map = ieee80211_set_noack_map, 5088 #ifdef CONFIG_PM 5089 .set_wakeup = ieee80211_set_wakeup, 5090 #endif 5091 .get_channel = ieee80211_cfg_get_channel, 5092 .start_radar_detection = ieee80211_start_radar_detection, 5093 .end_cac = ieee80211_end_cac, 5094 .channel_switch = ieee80211_channel_switch, 5095 .set_qos_map = ieee80211_set_qos_map, 5096 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5097 .add_tx_ts = ieee80211_add_tx_ts, 5098 .del_tx_ts = ieee80211_del_tx_ts, 5099 .start_nan = ieee80211_start_nan, 5100 .stop_nan = ieee80211_stop_nan, 5101 .nan_change_conf = ieee80211_nan_change_conf, 5102 .add_nan_func = ieee80211_add_nan_func, 5103 .del_nan_func = ieee80211_del_nan_func, 5104 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5105 .tx_control_port = ieee80211_tx_control_port, 5106 .get_txq_stats = ieee80211_get_txq_stats, 5107 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5108 .start_pmsr = ieee80211_start_pmsr, 5109 .abort_pmsr = ieee80211_abort_pmsr, 5110 .probe_mesh_link = ieee80211_probe_mesh_link, 5111 .set_tid_config = ieee80211_set_tid_config, 5112 .reset_tid_config = ieee80211_reset_tid_config, 5113 .set_sar_specs = ieee80211_set_sar_specs, 5114 .color_change = ieee80211_color_change, 5115 .set_radar_background = ieee80211_set_radar_background, 5116 .add_intf_link = ieee80211_add_intf_link, 5117 .del_intf_link = ieee80211_del_intf_link, 5118 .add_link_station = ieee80211_add_link_station, 5119 .mod_link_station = ieee80211_mod_link_station, 5120 .del_link_station = ieee80211_del_link_station, 5121 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5122 }; 5123