1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && sdata->vif.valid_links) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 ret = ieee80211_if_change_type(sdata, type); 218 if (ret) 219 return ret; 220 221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 223 ieee80211_check_fast_rx_iface(sdata); 224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 226 227 if (params->use_4addr == ifmgd->use_4addr) 228 return 0; 229 230 /* FIXME: no support for 4-addr MLO yet */ 231 if (sdata->vif.valid_links) 232 return -EOPNOTSUPP; 233 234 sdata->u.mgd.use_4addr = params->use_4addr; 235 if (!ifmgd->associated) 236 return 0; 237 238 mutex_lock(&local->sta_mtx); 239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 240 if (sta) 241 drv_sta_set_4addr(local, sdata, &sta->sta, 242 params->use_4addr); 243 mutex_unlock(&local->sta_mtx); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 mutex_lock(&sdata->local->chanctx_mtx); 265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 266 mutex_unlock(&sdata->local->chanctx_mtx); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 mutex_lock(&sdata->local->chanctx_mtx); 287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 288 mutex_unlock(&sdata->local->chanctx_mtx); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 mutex_lock(&local->key_mtx); 456 key = key_mtx_dereference(local, sta->ptk[key_idx]); 457 458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 459 ret = ieee80211_set_tx_key(key); 460 461 mutex_unlock(&local->key_mtx); 462 return ret; 463 } 464 465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 466 int link_id, u8 key_idx, bool pairwise, 467 const u8 *mac_addr, struct key_params *params) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_link_data *link = 471 ieee80211_link_or_deflink(sdata, link_id, false); 472 struct ieee80211_local *local = sdata->local; 473 struct sta_info *sta = NULL; 474 struct ieee80211_key *key; 475 int err; 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 mutex_lock(&local->sta_mtx); 514 515 if (mac_addr) { 516 sta = sta_info_get_bss(sdata, mac_addr); 517 /* 518 * The ASSOC test makes sure the driver is ready to 519 * receive the key. When wpa_supplicant has roamed 520 * using FT, it attempts to set the key before 521 * association has completed, this rejects that attempt 522 * so it will set the key again after association. 523 * 524 * TODO: accept the key if we have a station entry and 525 * add it to the device after the station. 526 */ 527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 528 ieee80211_key_free_unused(key); 529 err = -ENOENT; 530 goto out_unlock; 531 } 532 } 533 534 switch (sdata->vif.type) { 535 case NL80211_IFTYPE_STATION: 536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 538 break; 539 case NL80211_IFTYPE_AP: 540 case NL80211_IFTYPE_AP_VLAN: 541 /* Keys without a station are used for TX only */ 542 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 544 break; 545 case NL80211_IFTYPE_ADHOC: 546 /* no MFP (yet) */ 547 break; 548 case NL80211_IFTYPE_MESH_POINT: 549 #ifdef CONFIG_MAC80211_MESH 550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 552 break; 553 #endif 554 case NL80211_IFTYPE_WDS: 555 case NL80211_IFTYPE_MONITOR: 556 case NL80211_IFTYPE_P2P_DEVICE: 557 case NL80211_IFTYPE_NAN: 558 case NL80211_IFTYPE_UNSPECIFIED: 559 case NUM_NL80211_IFTYPES: 560 case NL80211_IFTYPE_P2P_CLIENT: 561 case NL80211_IFTYPE_P2P_GO: 562 case NL80211_IFTYPE_OCB: 563 /* shouldn't happen */ 564 WARN_ON_ONCE(1); 565 break; 566 } 567 568 err = ieee80211_key_link(key, link, sta); 569 570 out_unlock: 571 mutex_unlock(&local->sta_mtx); 572 573 return err; 574 } 575 576 static struct ieee80211_key * 577 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 578 u8 key_idx, bool pairwise, const u8 *mac_addr) 579 { 580 struct ieee80211_local *local __maybe_unused = sdata->local; 581 struct ieee80211_link_data *link = &sdata->deflink; 582 struct ieee80211_key *key; 583 584 if (link_id >= 0) { 585 link = rcu_dereference_check(sdata->link[link_id], 586 lockdep_is_held(&sdata->wdev.mtx)); 587 if (!link) 588 return NULL; 589 } 590 591 if (mac_addr) { 592 struct sta_info *sta; 593 struct link_sta_info *link_sta; 594 595 sta = sta_info_get_bss(sdata, mac_addr); 596 if (!sta) 597 return NULL; 598 599 if (link_id >= 0) { 600 link_sta = rcu_dereference_check(sta->link[link_id], 601 lockdep_is_held(&local->sta_mtx)); 602 if (!link_sta) 603 return NULL; 604 } else { 605 link_sta = &sta->deflink; 606 } 607 608 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 609 return rcu_dereference_check_key_mtx(local, 610 sta->ptk[key_idx]); 611 612 if (!pairwise && 613 key_idx < NUM_DEFAULT_KEYS + 614 NUM_DEFAULT_MGMT_KEYS + 615 NUM_DEFAULT_BEACON_KEYS) 616 return rcu_dereference_check_key_mtx(local, 617 link_sta->gtk[key_idx]); 618 619 return NULL; 620 } 621 622 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 623 return rcu_dereference_check_key_mtx(local, 624 sdata->keys[key_idx]); 625 626 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 627 if (key) 628 return key; 629 630 /* or maybe it was a WEP key */ 631 if (key_idx < NUM_DEFAULT_KEYS) 632 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 633 634 return NULL; 635 } 636 637 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 638 int link_id, u8 key_idx, bool pairwise, 639 const u8 *mac_addr) 640 { 641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 642 struct ieee80211_local *local = sdata->local; 643 struct ieee80211_key *key; 644 int ret; 645 646 mutex_lock(&local->sta_mtx); 647 mutex_lock(&local->key_mtx); 648 649 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 650 if (!key) { 651 ret = -ENOENT; 652 goto out_unlock; 653 } 654 655 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 656 657 ret = 0; 658 out_unlock: 659 mutex_unlock(&local->key_mtx); 660 mutex_unlock(&local->sta_mtx); 661 662 return ret; 663 } 664 665 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 666 int link_id, u8 key_idx, bool pairwise, 667 const u8 *mac_addr, void *cookie, 668 void (*callback)(void *cookie, 669 struct key_params *params)) 670 { 671 struct ieee80211_sub_if_data *sdata; 672 u8 seq[6] = {0}; 673 struct key_params params; 674 struct ieee80211_key *key; 675 u64 pn64; 676 u32 iv32; 677 u16 iv16; 678 int err = -ENOENT; 679 struct ieee80211_key_seq kseq = {}; 680 681 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 682 683 rcu_read_lock(); 684 685 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 686 if (!key) 687 goto out; 688 689 memset(¶ms, 0, sizeof(params)); 690 691 params.cipher = key->conf.cipher; 692 693 switch (key->conf.cipher) { 694 case WLAN_CIPHER_SUITE_TKIP: 695 pn64 = atomic64_read(&key->conf.tx_pn); 696 iv32 = TKIP_PN_TO_IV32(pn64); 697 iv16 = TKIP_PN_TO_IV16(pn64); 698 699 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 700 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 701 drv_get_key_seq(sdata->local, key, &kseq); 702 iv32 = kseq.tkip.iv32; 703 iv16 = kseq.tkip.iv16; 704 } 705 706 seq[0] = iv16 & 0xff; 707 seq[1] = (iv16 >> 8) & 0xff; 708 seq[2] = iv32 & 0xff; 709 seq[3] = (iv32 >> 8) & 0xff; 710 seq[4] = (iv32 >> 16) & 0xff; 711 seq[5] = (iv32 >> 24) & 0xff; 712 params.seq = seq; 713 params.seq_len = 6; 714 break; 715 case WLAN_CIPHER_SUITE_CCMP: 716 case WLAN_CIPHER_SUITE_CCMP_256: 717 case WLAN_CIPHER_SUITE_AES_CMAC: 718 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 719 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 720 offsetof(typeof(kseq), aes_cmac)); 721 fallthrough; 722 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 723 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 724 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 725 offsetof(typeof(kseq), aes_gmac)); 726 fallthrough; 727 case WLAN_CIPHER_SUITE_GCMP: 728 case WLAN_CIPHER_SUITE_GCMP_256: 729 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 730 offsetof(typeof(kseq), gcmp)); 731 732 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 733 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 734 drv_get_key_seq(sdata->local, key, &kseq); 735 memcpy(seq, kseq.ccmp.pn, 6); 736 } else { 737 pn64 = atomic64_read(&key->conf.tx_pn); 738 seq[0] = pn64; 739 seq[1] = pn64 >> 8; 740 seq[2] = pn64 >> 16; 741 seq[3] = pn64 >> 24; 742 seq[4] = pn64 >> 32; 743 seq[5] = pn64 >> 40; 744 } 745 params.seq = seq; 746 params.seq_len = 6; 747 break; 748 default: 749 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 750 break; 751 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 752 break; 753 drv_get_key_seq(sdata->local, key, &kseq); 754 params.seq = kseq.hw.seq; 755 params.seq_len = kseq.hw.seq_len; 756 break; 757 } 758 759 params.key = key->conf.key; 760 params.key_len = key->conf.keylen; 761 762 callback(cookie, ¶ms); 763 err = 0; 764 765 out: 766 rcu_read_unlock(); 767 return err; 768 } 769 770 static int ieee80211_config_default_key(struct wiphy *wiphy, 771 struct net_device *dev, 772 int link_id, u8 key_idx, bool uni, 773 bool multi) 774 { 775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 776 struct ieee80211_link_data *link = 777 ieee80211_link_or_deflink(sdata, link_id, false); 778 779 if (IS_ERR(link)) 780 return PTR_ERR(link); 781 782 ieee80211_set_default_key(link, key_idx, uni, multi); 783 784 return 0; 785 } 786 787 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 788 struct net_device *dev, 789 int link_id, u8 key_idx) 790 { 791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 792 struct ieee80211_link_data *link = 793 ieee80211_link_or_deflink(sdata, link_id, true); 794 795 if (IS_ERR(link)) 796 return PTR_ERR(link); 797 798 ieee80211_set_default_mgmt_key(link, key_idx); 799 800 return 0; 801 } 802 803 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 804 struct net_device *dev, 805 int link_id, u8 key_idx) 806 { 807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 808 struct ieee80211_link_data *link = 809 ieee80211_link_or_deflink(sdata, link_id, true); 810 811 if (IS_ERR(link)) 812 return PTR_ERR(link); 813 814 ieee80211_set_default_beacon_key(link, key_idx); 815 816 return 0; 817 } 818 819 void sta_set_rate_info_tx(struct sta_info *sta, 820 const struct ieee80211_tx_rate *rate, 821 struct rate_info *rinfo) 822 { 823 rinfo->flags = 0; 824 if (rate->flags & IEEE80211_TX_RC_MCS) { 825 rinfo->flags |= RATE_INFO_FLAGS_MCS; 826 rinfo->mcs = rate->idx; 827 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 829 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 830 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 831 } else { 832 struct ieee80211_supported_band *sband; 833 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 834 u16 brate; 835 836 sband = ieee80211_get_sband(sta->sdata); 837 WARN_ON_ONCE(sband && !sband->bitrates); 838 if (sband && sband->bitrates) { 839 brate = sband->bitrates[rate->idx].bitrate; 840 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 841 } 842 } 843 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 844 rinfo->bw = RATE_INFO_BW_40; 845 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 846 rinfo->bw = RATE_INFO_BW_80; 847 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 848 rinfo->bw = RATE_INFO_BW_160; 849 else 850 rinfo->bw = RATE_INFO_BW_20; 851 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 852 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 853 } 854 855 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 856 int idx, u8 *mac, struct station_info *sinfo) 857 { 858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 859 struct ieee80211_local *local = sdata->local; 860 struct sta_info *sta; 861 int ret = -ENOENT; 862 863 mutex_lock(&local->sta_mtx); 864 865 sta = sta_info_get_by_idx(sdata, idx); 866 if (sta) { 867 ret = 0; 868 memcpy(mac, sta->sta.addr, ETH_ALEN); 869 sta_set_sinfo(sta, sinfo, true); 870 } 871 872 mutex_unlock(&local->sta_mtx); 873 874 return ret; 875 } 876 877 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 878 int idx, struct survey_info *survey) 879 { 880 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 881 882 return drv_get_survey(local, idx, survey); 883 } 884 885 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 886 const u8 *mac, struct station_info *sinfo) 887 { 888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 889 struct ieee80211_local *local = sdata->local; 890 struct sta_info *sta; 891 int ret = -ENOENT; 892 893 mutex_lock(&local->sta_mtx); 894 895 sta = sta_info_get_bss(sdata, mac); 896 if (sta) { 897 ret = 0; 898 sta_set_sinfo(sta, sinfo, true); 899 } 900 901 mutex_unlock(&local->sta_mtx); 902 903 return ret; 904 } 905 906 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 907 struct cfg80211_chan_def *chandef) 908 { 909 struct ieee80211_local *local = wiphy_priv(wiphy); 910 struct ieee80211_sub_if_data *sdata; 911 int ret = 0; 912 913 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 914 return 0; 915 916 mutex_lock(&local->mtx); 917 if (local->use_chanctx) { 918 sdata = wiphy_dereference(local->hw.wiphy, 919 local->monitor_sdata); 920 if (sdata) { 921 ieee80211_link_release_channel(&sdata->deflink); 922 ret = ieee80211_link_use_channel(&sdata->deflink, 923 chandef, 924 IEEE80211_CHANCTX_EXCLUSIVE); 925 } 926 } else if (local->open_count == local->monitors) { 927 local->_oper_chandef = *chandef; 928 ieee80211_hw_config(local, 0); 929 } 930 931 if (ret == 0) 932 local->monitor_chandef = *chandef; 933 mutex_unlock(&local->mtx); 934 935 return ret; 936 } 937 938 static int 939 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 940 const u8 *resp, size_t resp_len, 941 const struct ieee80211_csa_settings *csa, 942 const struct ieee80211_color_change_settings *cca, 943 struct ieee80211_link_data *link) 944 { 945 struct probe_resp *new, *old; 946 947 if (!resp || !resp_len) 948 return 1; 949 950 old = sdata_dereference(link->u.ap.probe_resp, sdata); 951 952 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 953 if (!new) 954 return -ENOMEM; 955 956 new->len = resp_len; 957 memcpy(new->data, resp, resp_len); 958 959 if (csa) 960 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 961 csa->n_counter_offsets_presp * 962 sizeof(new->cntdwn_counter_offsets[0])); 963 else if (cca) 964 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 965 966 rcu_assign_pointer(link->u.ap.probe_resp, new); 967 if (old) 968 kfree_rcu(old, rcu_head); 969 970 return 0; 971 } 972 973 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 974 struct cfg80211_fils_discovery *params, 975 struct ieee80211_link_data *link, 976 struct ieee80211_bss_conf *link_conf) 977 { 978 struct fils_discovery_data *new, *old = NULL; 979 struct ieee80211_fils_discovery *fd; 980 981 if (!params->tmpl || !params->tmpl_len) 982 return -EINVAL; 983 984 fd = &link_conf->fils_discovery; 985 fd->min_interval = params->min_interval; 986 fd->max_interval = params->max_interval; 987 988 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 989 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 990 if (!new) 991 return -ENOMEM; 992 new->len = params->tmpl_len; 993 memcpy(new->data, params->tmpl, params->tmpl_len); 994 rcu_assign_pointer(link->u.ap.fils_discovery, new); 995 996 if (old) 997 kfree_rcu(old, rcu_head); 998 999 return 0; 1000 } 1001 1002 static int 1003 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1004 struct cfg80211_unsol_bcast_probe_resp *params, 1005 struct ieee80211_link_data *link, 1006 struct ieee80211_bss_conf *link_conf) 1007 { 1008 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1009 1010 if (!params->tmpl || !params->tmpl_len) 1011 return -EINVAL; 1012 1013 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1014 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1015 if (!new) 1016 return -ENOMEM; 1017 new->len = params->tmpl_len; 1018 memcpy(new->data, params->tmpl, params->tmpl_len); 1019 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1020 1021 if (old) 1022 kfree_rcu(old, rcu_head); 1023 1024 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1025 1026 return 0; 1027 } 1028 1029 static int ieee80211_set_ftm_responder_params( 1030 struct ieee80211_sub_if_data *sdata, 1031 const u8 *lci, size_t lci_len, 1032 const u8 *civicloc, size_t civicloc_len, 1033 struct ieee80211_bss_conf *link_conf) 1034 { 1035 struct ieee80211_ftm_responder_params *new, *old; 1036 u8 *pos; 1037 int len; 1038 1039 if (!lci_len && !civicloc_len) 1040 return 0; 1041 1042 old = link_conf->ftmr_params; 1043 len = lci_len + civicloc_len; 1044 1045 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1046 if (!new) 1047 return -ENOMEM; 1048 1049 pos = (u8 *)(new + 1); 1050 if (lci_len) { 1051 new->lci_len = lci_len; 1052 new->lci = pos; 1053 memcpy(pos, lci, lci_len); 1054 pos += lci_len; 1055 } 1056 1057 if (civicloc_len) { 1058 new->civicloc_len = civicloc_len; 1059 new->civicloc = pos; 1060 memcpy(pos, civicloc, civicloc_len); 1061 pos += civicloc_len; 1062 } 1063 1064 link_conf->ftmr_params = new; 1065 kfree(old); 1066 1067 return 0; 1068 } 1069 1070 static int 1071 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1072 struct cfg80211_mbssid_elems *src) 1073 { 1074 int i, offset = 0; 1075 1076 for (i = 0; i < src->cnt; i++) { 1077 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1078 dst->elem[i].len = src->elem[i].len; 1079 dst->elem[i].data = pos + offset; 1080 offset += dst->elem[i].len; 1081 } 1082 dst->cnt = src->cnt; 1083 1084 return offset; 1085 } 1086 1087 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1088 struct ieee80211_link_data *link, 1089 struct cfg80211_beacon_data *params, 1090 const struct ieee80211_csa_settings *csa, 1091 const struct ieee80211_color_change_settings *cca) 1092 { 1093 struct cfg80211_mbssid_elems *mbssid = NULL; 1094 struct beacon_data *new, *old; 1095 int new_head_len, new_tail_len; 1096 int size, err; 1097 u32 changed = BSS_CHANGED_BEACON; 1098 struct ieee80211_bss_conf *link_conf = link->conf; 1099 1100 old = sdata_dereference(link->u.ap.beacon, sdata); 1101 1102 /* Need to have a beacon head if we don't have one yet */ 1103 if (!params->head && !old) 1104 return -EINVAL; 1105 1106 /* new or old head? */ 1107 if (params->head) 1108 new_head_len = params->head_len; 1109 else 1110 new_head_len = old->head_len; 1111 1112 /* new or old tail? */ 1113 if (params->tail || !old) 1114 /* params->tail_len will be zero for !params->tail */ 1115 new_tail_len = params->tail_len; 1116 else 1117 new_tail_len = old->tail_len; 1118 1119 size = sizeof(*new) + new_head_len + new_tail_len; 1120 1121 /* new or old multiple BSSID elements? */ 1122 if (params->mbssid_ies) { 1123 mbssid = params->mbssid_ies; 1124 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1125 size += ieee80211_get_mbssid_beacon_len(mbssid); 1126 } else if (old && old->mbssid_ies) { 1127 mbssid = old->mbssid_ies; 1128 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1129 size += ieee80211_get_mbssid_beacon_len(mbssid); 1130 } 1131 1132 new = kzalloc(size, GFP_KERNEL); 1133 if (!new) 1134 return -ENOMEM; 1135 1136 /* start filling the new info now */ 1137 1138 /* 1139 * pointers go into the block we allocated, 1140 * memory is | beacon_data | head | tail | mbssid_ies 1141 */ 1142 new->head = ((u8 *) new) + sizeof(*new); 1143 new->tail = new->head + new_head_len; 1144 new->head_len = new_head_len; 1145 new->tail_len = new_tail_len; 1146 /* copy in optional mbssid_ies */ 1147 if (mbssid) { 1148 u8 *pos = new->tail + new->tail_len; 1149 1150 new->mbssid_ies = (void *)pos; 1151 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1152 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1153 /* update bssid_indicator */ 1154 link_conf->bssid_indicator = 1155 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1156 } 1157 1158 if (csa) { 1159 new->cntdwn_current_counter = csa->count; 1160 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1161 csa->n_counter_offsets_beacon * 1162 sizeof(new->cntdwn_counter_offsets[0])); 1163 } else if (cca) { 1164 new->cntdwn_current_counter = cca->count; 1165 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1166 } 1167 1168 /* copy in head */ 1169 if (params->head) 1170 memcpy(new->head, params->head, new_head_len); 1171 else 1172 memcpy(new->head, old->head, new_head_len); 1173 1174 /* copy in optional tail */ 1175 if (params->tail) 1176 memcpy(new->tail, params->tail, new_tail_len); 1177 else 1178 if (old) 1179 memcpy(new->tail, old->tail, new_tail_len); 1180 1181 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1182 params->probe_resp_len, csa, cca, link); 1183 if (err < 0) { 1184 kfree(new); 1185 return err; 1186 } 1187 if (err == 0) 1188 changed |= BSS_CHANGED_AP_PROBE_RESP; 1189 1190 if (params->ftm_responder != -1) { 1191 link_conf->ftm_responder = params->ftm_responder; 1192 err = ieee80211_set_ftm_responder_params(sdata, 1193 params->lci, 1194 params->lci_len, 1195 params->civicloc, 1196 params->civicloc_len, 1197 link_conf); 1198 1199 if (err < 0) { 1200 kfree(new); 1201 return err; 1202 } 1203 1204 changed |= BSS_CHANGED_FTM_RESPONDER; 1205 } 1206 1207 rcu_assign_pointer(link->u.ap.beacon, new); 1208 sdata->u.ap.active = true; 1209 1210 if (old) 1211 kfree_rcu(old, rcu_head); 1212 1213 return changed; 1214 } 1215 1216 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1217 struct cfg80211_ap_settings *params) 1218 { 1219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1220 struct ieee80211_local *local = sdata->local; 1221 struct beacon_data *old; 1222 struct ieee80211_sub_if_data *vlan; 1223 u64 changed = BSS_CHANGED_BEACON_INT | 1224 BSS_CHANGED_BEACON_ENABLED | 1225 BSS_CHANGED_BEACON | 1226 BSS_CHANGED_P2P_PS | 1227 BSS_CHANGED_TXPOWER | 1228 BSS_CHANGED_TWT; 1229 int i, err; 1230 int prev_beacon_int; 1231 unsigned int link_id = params->beacon.link_id; 1232 struct ieee80211_link_data *link; 1233 struct ieee80211_bss_conf *link_conf; 1234 1235 link = sdata_dereference(sdata->link[link_id], sdata); 1236 if (!link) 1237 return -ENOLINK; 1238 1239 link_conf = link->conf; 1240 1241 old = sdata_dereference(link->u.ap.beacon, sdata); 1242 if (old) 1243 return -EALREADY; 1244 1245 if (params->smps_mode != NL80211_SMPS_OFF) 1246 return -ENOTSUPP; 1247 1248 link->smps_mode = IEEE80211_SMPS_OFF; 1249 1250 link->needed_rx_chains = sdata->local->rx_chains; 1251 1252 prev_beacon_int = link_conf->beacon_int; 1253 link_conf->beacon_int = params->beacon_interval; 1254 1255 if (params->ht_cap) 1256 link_conf->ht_ldpc = 1257 params->ht_cap->cap_info & 1258 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1259 1260 if (params->vht_cap) { 1261 link_conf->vht_ldpc = 1262 params->vht_cap->vht_cap_info & 1263 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1264 link_conf->vht_su_beamformer = 1265 params->vht_cap->vht_cap_info & 1266 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1267 link_conf->vht_su_beamformee = 1268 params->vht_cap->vht_cap_info & 1269 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1270 link_conf->vht_mu_beamformer = 1271 params->vht_cap->vht_cap_info & 1272 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1273 link_conf->vht_mu_beamformee = 1274 params->vht_cap->vht_cap_info & 1275 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1276 } 1277 1278 if (params->he_cap && params->he_oper) { 1279 link_conf->he_support = true; 1280 link_conf->htc_trig_based_pkt_ext = 1281 le32_get_bits(params->he_oper->he_oper_params, 1282 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1283 link_conf->frame_time_rts_th = 1284 le32_get_bits(params->he_oper->he_oper_params, 1285 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1286 changed |= BSS_CHANGED_HE_OBSS_PD; 1287 1288 if (params->beacon.he_bss_color.enabled) 1289 changed |= BSS_CHANGED_HE_BSS_COLOR; 1290 } 1291 1292 if (params->he_cap) { 1293 link_conf->he_ldpc = 1294 params->he_cap->phy_cap_info[1] & 1295 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1296 link_conf->he_su_beamformer = 1297 params->he_cap->phy_cap_info[3] & 1298 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1299 link_conf->he_su_beamformee = 1300 params->he_cap->phy_cap_info[4] & 1301 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1302 link_conf->he_mu_beamformer = 1303 params->he_cap->phy_cap_info[4] & 1304 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1305 link_conf->he_full_ul_mumimo = 1306 params->he_cap->phy_cap_info[2] & 1307 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1308 } 1309 1310 if (params->eht_cap) { 1311 link_conf->eht_puncturing = params->punct_bitmap; 1312 changed |= BSS_CHANGED_EHT_PUNCTURING; 1313 1314 link_conf->eht_su_beamformer = 1315 params->eht_cap->fixed.phy_cap_info[0] & 1316 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1317 link_conf->eht_su_beamformee = 1318 params->eht_cap->fixed.phy_cap_info[0] & 1319 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1320 link_conf->eht_mu_beamformer = 1321 params->eht_cap->fixed.phy_cap_info[7] & 1322 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1323 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1324 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1325 } else { 1326 link_conf->eht_su_beamformer = false; 1327 link_conf->eht_su_beamformee = false; 1328 link_conf->eht_mu_beamformer = false; 1329 } 1330 1331 if (sdata->vif.type == NL80211_IFTYPE_AP && 1332 params->mbssid_config.tx_wdev) { 1333 err = ieee80211_set_ap_mbssid_options(sdata, 1334 params->mbssid_config, 1335 link_conf); 1336 if (err) 1337 return err; 1338 } 1339 1340 mutex_lock(&local->mtx); 1341 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1342 IEEE80211_CHANCTX_SHARED); 1343 if (!err) 1344 ieee80211_link_copy_chanctx_to_vlans(link, false); 1345 mutex_unlock(&local->mtx); 1346 if (err) { 1347 link_conf->beacon_int = prev_beacon_int; 1348 return err; 1349 } 1350 1351 /* 1352 * Apply control port protocol, this allows us to 1353 * not encrypt dynamic WEP control frames. 1354 */ 1355 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1356 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1357 sdata->control_port_over_nl80211 = 1358 params->crypto.control_port_over_nl80211; 1359 sdata->control_port_no_preauth = 1360 params->crypto.control_port_no_preauth; 1361 1362 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1363 vlan->control_port_protocol = 1364 params->crypto.control_port_ethertype; 1365 vlan->control_port_no_encrypt = 1366 params->crypto.control_port_no_encrypt; 1367 vlan->control_port_over_nl80211 = 1368 params->crypto.control_port_over_nl80211; 1369 vlan->control_port_no_preauth = 1370 params->crypto.control_port_no_preauth; 1371 } 1372 1373 link_conf->dtim_period = params->dtim_period; 1374 link_conf->enable_beacon = true; 1375 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1376 link_conf->twt_responder = params->twt_responder; 1377 link_conf->he_obss_pd = params->he_obss_pd; 1378 link_conf->he_bss_color = params->beacon.he_bss_color; 1379 sdata->vif.cfg.s1g = params->chandef.chan->band == 1380 NL80211_BAND_S1GHZ; 1381 1382 sdata->vif.cfg.ssid_len = params->ssid_len; 1383 if (params->ssid_len) 1384 memcpy(sdata->vif.cfg.ssid, params->ssid, 1385 params->ssid_len); 1386 link_conf->hidden_ssid = 1387 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1388 1389 memset(&link_conf->p2p_noa_attr, 0, 1390 sizeof(link_conf->p2p_noa_attr)); 1391 link_conf->p2p_noa_attr.oppps_ctwindow = 1392 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1393 if (params->p2p_opp_ps) 1394 link_conf->p2p_noa_attr.oppps_ctwindow |= 1395 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1396 1397 sdata->beacon_rate_set = false; 1398 if (wiphy_ext_feature_isset(local->hw.wiphy, 1399 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1400 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1401 sdata->beacon_rateidx_mask[i] = 1402 params->beacon_rate.control[i].legacy; 1403 if (sdata->beacon_rateidx_mask[i]) 1404 sdata->beacon_rate_set = true; 1405 } 1406 } 1407 1408 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1409 link_conf->beacon_tx_rate = params->beacon_rate; 1410 1411 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); 1412 if (err < 0) 1413 goto error; 1414 changed |= err; 1415 1416 if (params->fils_discovery.max_interval) { 1417 err = ieee80211_set_fils_discovery(sdata, 1418 ¶ms->fils_discovery, 1419 link, link_conf); 1420 if (err < 0) 1421 goto error; 1422 changed |= BSS_CHANGED_FILS_DISCOVERY; 1423 } 1424 1425 if (params->unsol_bcast_probe_resp.interval) { 1426 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1427 ¶ms->unsol_bcast_probe_resp, 1428 link, link_conf); 1429 if (err < 0) 1430 goto error; 1431 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1432 } 1433 1434 err = drv_start_ap(sdata->local, sdata, link_conf); 1435 if (err) { 1436 old = sdata_dereference(link->u.ap.beacon, sdata); 1437 1438 if (old) 1439 kfree_rcu(old, rcu_head); 1440 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1441 sdata->u.ap.active = false; 1442 goto error; 1443 } 1444 1445 ieee80211_recalc_dtim(local, sdata); 1446 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1447 ieee80211_link_info_change_notify(sdata, link, changed); 1448 1449 netif_carrier_on(dev); 1450 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1451 netif_carrier_on(vlan->dev); 1452 1453 return 0; 1454 1455 error: 1456 mutex_lock(&local->mtx); 1457 ieee80211_link_release_channel(link); 1458 mutex_unlock(&local->mtx); 1459 1460 return err; 1461 } 1462 1463 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1464 struct cfg80211_beacon_data *params) 1465 { 1466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1467 struct ieee80211_link_data *link; 1468 struct beacon_data *old; 1469 int err; 1470 struct ieee80211_bss_conf *link_conf; 1471 1472 sdata_assert_lock(sdata); 1473 1474 link = sdata_dereference(sdata->link[params->link_id], sdata); 1475 if (!link) 1476 return -ENOLINK; 1477 1478 link_conf = link->conf; 1479 1480 /* don't allow changing the beacon while a countdown is in place - offset 1481 * of channel switch counter may change 1482 */ 1483 if (link_conf->csa_active || link_conf->color_change_active) 1484 return -EBUSY; 1485 1486 old = sdata_dereference(link->u.ap.beacon, sdata); 1487 if (!old) 1488 return -ENOENT; 1489 1490 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); 1491 if (err < 0) 1492 return err; 1493 1494 if (params->he_bss_color_valid && 1495 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1496 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1497 err |= BSS_CHANGED_HE_BSS_COLOR; 1498 } 1499 1500 ieee80211_link_info_change_notify(sdata, link, err); 1501 return 0; 1502 } 1503 1504 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1505 { 1506 if (!link->u.ap.next_beacon) 1507 return; 1508 1509 kfree(link->u.ap.next_beacon->mbssid_ies); 1510 kfree(link->u.ap.next_beacon); 1511 link->u.ap.next_beacon = NULL; 1512 } 1513 1514 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1515 unsigned int link_id) 1516 { 1517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1518 struct ieee80211_sub_if_data *vlan; 1519 struct ieee80211_local *local = sdata->local; 1520 struct beacon_data *old_beacon; 1521 struct probe_resp *old_probe_resp; 1522 struct fils_discovery_data *old_fils_discovery; 1523 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1524 struct cfg80211_chan_def chandef; 1525 struct ieee80211_link_data *link = 1526 sdata_dereference(sdata->link[link_id], sdata); 1527 struct ieee80211_bss_conf *link_conf = link->conf; 1528 1529 sdata_assert_lock(sdata); 1530 1531 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1532 if (!old_beacon) 1533 return -ENOENT; 1534 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1535 sdata); 1536 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1537 sdata); 1538 old_unsol_bcast_probe_resp = 1539 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1540 sdata); 1541 1542 /* abort any running channel switch */ 1543 mutex_lock(&local->mtx); 1544 link_conf->csa_active = false; 1545 if (link->csa_block_tx) { 1546 ieee80211_wake_vif_queues(local, sdata, 1547 IEEE80211_QUEUE_STOP_REASON_CSA); 1548 link->csa_block_tx = false; 1549 } 1550 1551 mutex_unlock(&local->mtx); 1552 1553 ieee80211_free_next_beacon(link); 1554 1555 /* turn off carrier for this interface and dependent VLANs */ 1556 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1557 netif_carrier_off(vlan->dev); 1558 netif_carrier_off(dev); 1559 1560 /* remove beacon and probe response */ 1561 sdata->u.ap.active = false; 1562 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1563 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1564 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1565 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1566 kfree_rcu(old_beacon, rcu_head); 1567 if (old_probe_resp) 1568 kfree_rcu(old_probe_resp, rcu_head); 1569 if (old_fils_discovery) 1570 kfree_rcu(old_fils_discovery, rcu_head); 1571 if (old_unsol_bcast_probe_resp) 1572 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1573 1574 kfree(link_conf->ftmr_params); 1575 link_conf->ftmr_params = NULL; 1576 1577 sdata->vif.mbssid_tx_vif = NULL; 1578 link_conf->bssid_index = 0; 1579 link_conf->nontransmitted = false; 1580 link_conf->ema_ap = false; 1581 link_conf->bssid_indicator = 0; 1582 1583 __sta_info_flush(sdata, true); 1584 ieee80211_free_keys(sdata, true); 1585 1586 link_conf->enable_beacon = false; 1587 sdata->beacon_rate_set = false; 1588 sdata->vif.cfg.ssid_len = 0; 1589 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1590 ieee80211_link_info_change_notify(sdata, link, 1591 BSS_CHANGED_BEACON_ENABLED); 1592 1593 if (sdata->wdev.cac_started) { 1594 chandef = link_conf->chandef; 1595 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1596 cfg80211_cac_event(sdata->dev, &chandef, 1597 NL80211_RADAR_CAC_ABORTED, 1598 GFP_KERNEL); 1599 } 1600 1601 drv_stop_ap(sdata->local, sdata, link_conf); 1602 1603 /* free all potentially still buffered bcast frames */ 1604 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1605 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1606 1607 mutex_lock(&local->mtx); 1608 ieee80211_link_copy_chanctx_to_vlans(link, true); 1609 ieee80211_link_release_channel(link); 1610 mutex_unlock(&local->mtx); 1611 1612 return 0; 1613 } 1614 1615 static int sta_apply_auth_flags(struct ieee80211_local *local, 1616 struct sta_info *sta, 1617 u32 mask, u32 set) 1618 { 1619 int ret; 1620 1621 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1622 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1623 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1624 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1625 if (ret) 1626 return ret; 1627 } 1628 1629 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1630 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1631 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1632 /* 1633 * When peer becomes associated, init rate control as 1634 * well. Some drivers require rate control initialized 1635 * before drv_sta_state() is called. 1636 */ 1637 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1638 rate_control_rate_init(sta); 1639 1640 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1641 if (ret) 1642 return ret; 1643 } 1644 1645 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1646 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1647 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1648 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1649 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1650 else 1651 ret = 0; 1652 if (ret) 1653 return ret; 1654 } 1655 1656 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1657 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1658 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1659 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1660 if (ret) 1661 return ret; 1662 } 1663 1664 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1665 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1666 test_sta_flag(sta, WLAN_STA_AUTH)) { 1667 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1668 if (ret) 1669 return ret; 1670 } 1671 1672 return 0; 1673 } 1674 1675 static void sta_apply_mesh_params(struct ieee80211_local *local, 1676 struct sta_info *sta, 1677 struct station_parameters *params) 1678 { 1679 #ifdef CONFIG_MAC80211_MESH 1680 struct ieee80211_sub_if_data *sdata = sta->sdata; 1681 u32 changed = 0; 1682 1683 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1684 switch (params->plink_state) { 1685 case NL80211_PLINK_ESTAB: 1686 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1687 changed = mesh_plink_inc_estab_count(sdata); 1688 sta->mesh->plink_state = params->plink_state; 1689 sta->mesh->aid = params->peer_aid; 1690 1691 ieee80211_mps_sta_status_update(sta); 1692 changed |= ieee80211_mps_set_sta_local_pm(sta, 1693 sdata->u.mesh.mshcfg.power_mode); 1694 1695 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1696 /* init at low value */ 1697 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1698 1699 break; 1700 case NL80211_PLINK_LISTEN: 1701 case NL80211_PLINK_BLOCKED: 1702 case NL80211_PLINK_OPN_SNT: 1703 case NL80211_PLINK_OPN_RCVD: 1704 case NL80211_PLINK_CNF_RCVD: 1705 case NL80211_PLINK_HOLDING: 1706 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1707 changed = mesh_plink_dec_estab_count(sdata); 1708 sta->mesh->plink_state = params->plink_state; 1709 1710 ieee80211_mps_sta_status_update(sta); 1711 changed |= ieee80211_mps_set_sta_local_pm(sta, 1712 NL80211_MESH_POWER_UNKNOWN); 1713 break; 1714 default: 1715 /* nothing */ 1716 break; 1717 } 1718 } 1719 1720 switch (params->plink_action) { 1721 case NL80211_PLINK_ACTION_NO_ACTION: 1722 /* nothing */ 1723 break; 1724 case NL80211_PLINK_ACTION_OPEN: 1725 changed |= mesh_plink_open(sta); 1726 break; 1727 case NL80211_PLINK_ACTION_BLOCK: 1728 changed |= mesh_plink_block(sta); 1729 break; 1730 } 1731 1732 if (params->local_pm) 1733 changed |= ieee80211_mps_set_sta_local_pm(sta, 1734 params->local_pm); 1735 1736 ieee80211_mbss_info_change_notify(sdata, changed); 1737 #endif 1738 } 1739 1740 static int sta_link_apply_parameters(struct ieee80211_local *local, 1741 struct sta_info *sta, bool new_link, 1742 struct link_station_parameters *params) 1743 { 1744 int ret = 0; 1745 struct ieee80211_supported_band *sband; 1746 struct ieee80211_sub_if_data *sdata = sta->sdata; 1747 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1748 struct ieee80211_link_data *link = 1749 sdata_dereference(sdata->link[link_id], sdata); 1750 struct link_sta_info *link_sta = 1751 rcu_dereference_protected(sta->link[link_id], 1752 lockdep_is_held(&local->sta_mtx)); 1753 1754 /* 1755 * If there are no changes, then accept a link that doesn't exist, 1756 * unless it's a new link. 1757 */ 1758 if (params->link_id < 0 && !new_link && 1759 !params->link_mac && !params->txpwr_set && 1760 !params->supported_rates_len && 1761 !params->ht_capa && !params->vht_capa && 1762 !params->he_capa && !params->eht_capa && 1763 !params->opmode_notif_used) 1764 return 0; 1765 1766 if (!link || !link_sta) 1767 return -EINVAL; 1768 1769 sband = ieee80211_get_link_sband(link); 1770 if (!sband) 1771 return -EINVAL; 1772 1773 if (params->link_mac) { 1774 if (new_link) { 1775 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1776 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1777 } else if (!ether_addr_equal(link_sta->addr, 1778 params->link_mac)) { 1779 return -EINVAL; 1780 } 1781 } else if (new_link) { 1782 return -EINVAL; 1783 } 1784 1785 if (params->txpwr_set) { 1786 link_sta->pub->txpwr.type = params->txpwr.type; 1787 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1788 link_sta->pub->txpwr.power = params->txpwr.power; 1789 ret = drv_sta_set_txpwr(local, sdata, sta); 1790 if (ret) 1791 return ret; 1792 } 1793 1794 if (params->supported_rates && 1795 params->supported_rates_len) { 1796 ieee80211_parse_bitrates(link->conf->chandef.width, 1797 sband, params->supported_rates, 1798 params->supported_rates_len, 1799 &link_sta->pub->supp_rates[sband->band]); 1800 } 1801 1802 if (params->ht_capa) 1803 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1804 params->ht_capa, link_sta); 1805 1806 /* VHT can override some HT caps such as the A-MSDU max length */ 1807 if (params->vht_capa) 1808 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1809 params->vht_capa, link_sta); 1810 1811 if (params->he_capa) 1812 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1813 (void *)params->he_capa, 1814 params->he_capa_len, 1815 (void *)params->he_6ghz_capa, 1816 link_sta); 1817 1818 if (params->he_capa && params->eht_capa) 1819 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1820 (u8 *)params->he_capa, 1821 params->he_capa_len, 1822 params->eht_capa, 1823 params->eht_capa_len, 1824 link_sta); 1825 1826 if (params->opmode_notif_used) { 1827 /* returned value is only needed for rc update, but the 1828 * rc isn't initialized here yet, so ignore it 1829 */ 1830 __ieee80211_vht_handle_opmode(sdata, link_sta, 1831 params->opmode_notif, 1832 sband->band); 1833 } 1834 1835 return ret; 1836 } 1837 1838 static int sta_apply_parameters(struct ieee80211_local *local, 1839 struct sta_info *sta, 1840 struct station_parameters *params) 1841 { 1842 struct ieee80211_sub_if_data *sdata = sta->sdata; 1843 u32 mask, set; 1844 int ret = 0; 1845 1846 mask = params->sta_flags_mask; 1847 set = params->sta_flags_set; 1848 1849 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1850 /* 1851 * In mesh mode, ASSOCIATED isn't part of the nl80211 1852 * API but must follow AUTHENTICATED for driver state. 1853 */ 1854 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1855 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1856 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1857 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1858 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1859 /* 1860 * TDLS -- everything follows authorized, but 1861 * only becoming authorized is possible, not 1862 * going back 1863 */ 1864 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1865 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1866 BIT(NL80211_STA_FLAG_ASSOCIATED); 1867 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1868 BIT(NL80211_STA_FLAG_ASSOCIATED); 1869 } 1870 } 1871 1872 if (mask & BIT(NL80211_STA_FLAG_WME) && 1873 local->hw.queues >= IEEE80211_NUM_ACS) 1874 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1875 1876 /* auth flags will be set later for TDLS, 1877 * and for unassociated stations that move to associated */ 1878 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1879 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1880 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1881 ret = sta_apply_auth_flags(local, sta, mask, set); 1882 if (ret) 1883 return ret; 1884 } 1885 1886 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1887 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1888 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1889 else 1890 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1891 } 1892 1893 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1894 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1895 if (set & BIT(NL80211_STA_FLAG_MFP)) 1896 set_sta_flag(sta, WLAN_STA_MFP); 1897 else 1898 clear_sta_flag(sta, WLAN_STA_MFP); 1899 } 1900 1901 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1902 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1903 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1904 else 1905 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1906 } 1907 1908 /* mark TDLS channel switch support, if the AP allows it */ 1909 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1910 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1911 params->ext_capab_len >= 4 && 1912 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1913 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1914 1915 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1916 !sdata->u.mgd.tdls_wider_bw_prohibited && 1917 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1918 params->ext_capab_len >= 8 && 1919 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1920 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1921 1922 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1923 sta->sta.uapsd_queues = params->uapsd_queues; 1924 sta->sta.max_sp = params->max_sp; 1925 } 1926 1927 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1928 params->ext_capab_len); 1929 1930 /* 1931 * cfg80211 validates this (1-2007) and allows setting the AID 1932 * only when creating a new station entry 1933 */ 1934 if (params->aid) 1935 sta->sta.aid = params->aid; 1936 1937 /* 1938 * Some of the following updates would be racy if called on an 1939 * existing station, via ieee80211_change_station(). However, 1940 * all such changes are rejected by cfg80211 except for updates 1941 * changing the supported rates on an existing but not yet used 1942 * TDLS peer. 1943 */ 1944 1945 if (params->listen_interval >= 0) 1946 sta->listen_interval = params->listen_interval; 1947 1948 ret = sta_link_apply_parameters(local, sta, false, 1949 ¶ms->link_sta_params); 1950 if (ret) 1951 return ret; 1952 1953 if (params->support_p2p_ps >= 0) 1954 sta->sta.support_p2p_ps = params->support_p2p_ps; 1955 1956 if (ieee80211_vif_is_mesh(&sdata->vif)) 1957 sta_apply_mesh_params(local, sta, params); 1958 1959 if (params->airtime_weight) 1960 sta->airtime_weight = params->airtime_weight; 1961 1962 /* set the STA state after all sta info from usermode has been set */ 1963 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1964 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1965 ret = sta_apply_auth_flags(local, sta, mask, set); 1966 if (ret) 1967 return ret; 1968 } 1969 1970 /* Mark the STA as MLO if MLD MAC address is available */ 1971 if (params->link_sta_params.mld_mac) 1972 sta->sta.mlo = true; 1973 1974 return 0; 1975 } 1976 1977 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1978 const u8 *mac, 1979 struct station_parameters *params) 1980 { 1981 struct ieee80211_local *local = wiphy_priv(wiphy); 1982 struct sta_info *sta; 1983 struct ieee80211_sub_if_data *sdata; 1984 int err; 1985 1986 if (params->vlan) { 1987 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1988 1989 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1990 sdata->vif.type != NL80211_IFTYPE_AP) 1991 return -EINVAL; 1992 } else 1993 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1994 1995 if (ether_addr_equal(mac, sdata->vif.addr)) 1996 return -EINVAL; 1997 1998 if (!is_valid_ether_addr(mac)) 1999 return -EINVAL; 2000 2001 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2002 sdata->vif.type == NL80211_IFTYPE_STATION && 2003 !sdata->u.mgd.associated) 2004 return -EINVAL; 2005 2006 /* 2007 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2008 * but we need to have a link_mac in that case as well, so use the 2009 * STA's MAC address in that case. 2010 */ 2011 if (params->link_sta_params.link_id >= 0) 2012 sta = sta_info_alloc_with_link(sdata, mac, 2013 params->link_sta_params.link_id, 2014 params->link_sta_params.link_mac ?: mac, 2015 GFP_KERNEL); 2016 else 2017 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2018 2019 if (!sta) 2020 return -ENOMEM; 2021 2022 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2023 sta->sta.tdls = true; 2024 2025 /* Though the mutex is not needed here (since the station is not 2026 * visible yet), sta_apply_parameters (and inner functions) require 2027 * the mutex due to other paths. 2028 */ 2029 mutex_lock(&local->sta_mtx); 2030 err = sta_apply_parameters(local, sta, params); 2031 mutex_unlock(&local->sta_mtx); 2032 if (err) { 2033 sta_info_free(local, sta); 2034 return err; 2035 } 2036 2037 /* 2038 * for TDLS and for unassociated station, rate control should be 2039 * initialized only when rates are known and station is marked 2040 * authorized/associated 2041 */ 2042 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2043 test_sta_flag(sta, WLAN_STA_ASSOC)) 2044 rate_control_rate_init(sta); 2045 2046 return sta_info_insert(sta); 2047 } 2048 2049 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2050 struct station_del_parameters *params) 2051 { 2052 struct ieee80211_sub_if_data *sdata; 2053 2054 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2055 2056 if (params->mac) 2057 return sta_info_destroy_addr_bss(sdata, params->mac); 2058 2059 sta_info_flush(sdata); 2060 return 0; 2061 } 2062 2063 static int ieee80211_change_station(struct wiphy *wiphy, 2064 struct net_device *dev, const u8 *mac, 2065 struct station_parameters *params) 2066 { 2067 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2068 struct ieee80211_local *local = wiphy_priv(wiphy); 2069 struct sta_info *sta; 2070 struct ieee80211_sub_if_data *vlansdata; 2071 enum cfg80211_station_type statype; 2072 int err; 2073 2074 mutex_lock(&local->sta_mtx); 2075 2076 sta = sta_info_get_bss(sdata, mac); 2077 if (!sta) { 2078 err = -ENOENT; 2079 goto out_err; 2080 } 2081 2082 switch (sdata->vif.type) { 2083 case NL80211_IFTYPE_MESH_POINT: 2084 if (sdata->u.mesh.user_mpm) 2085 statype = CFG80211_STA_MESH_PEER_USER; 2086 else 2087 statype = CFG80211_STA_MESH_PEER_KERNEL; 2088 break; 2089 case NL80211_IFTYPE_ADHOC: 2090 statype = CFG80211_STA_IBSS; 2091 break; 2092 case NL80211_IFTYPE_STATION: 2093 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2094 statype = CFG80211_STA_AP_STA; 2095 break; 2096 } 2097 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2098 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2099 else 2100 statype = CFG80211_STA_TDLS_PEER_SETUP; 2101 break; 2102 case NL80211_IFTYPE_AP: 2103 case NL80211_IFTYPE_AP_VLAN: 2104 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2105 statype = CFG80211_STA_AP_CLIENT; 2106 else 2107 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2108 break; 2109 default: 2110 err = -EOPNOTSUPP; 2111 goto out_err; 2112 } 2113 2114 err = cfg80211_check_station_change(wiphy, params, statype); 2115 if (err) 2116 goto out_err; 2117 2118 if (params->vlan && params->vlan != sta->sdata->dev) { 2119 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2120 2121 if (params->vlan->ieee80211_ptr->use_4addr) { 2122 if (vlansdata->u.vlan.sta) { 2123 err = -EBUSY; 2124 goto out_err; 2125 } 2126 2127 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2128 __ieee80211_check_fast_rx_iface(vlansdata); 2129 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2130 } 2131 2132 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2133 sta->sdata->u.vlan.sta) { 2134 ieee80211_clear_fast_rx(sta); 2135 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2136 } 2137 2138 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2139 ieee80211_vif_dec_num_mcast(sta->sdata); 2140 2141 sta->sdata = vlansdata; 2142 ieee80211_check_fast_xmit(sta); 2143 2144 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2145 ieee80211_vif_inc_num_mcast(sta->sdata); 2146 cfg80211_send_layer2_update(sta->sdata->dev, 2147 sta->sta.addr); 2148 } 2149 } 2150 2151 /* we use sta_info_get_bss() so this might be different */ 2152 if (sdata != sta->sdata) { 2153 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2154 err = sta_apply_parameters(local, sta, params); 2155 mutex_unlock(&sta->sdata->wdev.mtx); 2156 } else { 2157 err = sta_apply_parameters(local, sta, params); 2158 } 2159 if (err) 2160 goto out_err; 2161 2162 mutex_unlock(&local->sta_mtx); 2163 2164 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2165 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2166 ieee80211_recalc_ps(local); 2167 ieee80211_recalc_ps_vif(sdata); 2168 } 2169 2170 return 0; 2171 out_err: 2172 mutex_unlock(&local->sta_mtx); 2173 return err; 2174 } 2175 2176 #ifdef CONFIG_MAC80211_MESH 2177 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2178 const u8 *dst, const u8 *next_hop) 2179 { 2180 struct ieee80211_sub_if_data *sdata; 2181 struct mesh_path *mpath; 2182 struct sta_info *sta; 2183 2184 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2185 2186 rcu_read_lock(); 2187 sta = sta_info_get(sdata, next_hop); 2188 if (!sta) { 2189 rcu_read_unlock(); 2190 return -ENOENT; 2191 } 2192 2193 mpath = mesh_path_add(sdata, dst); 2194 if (IS_ERR(mpath)) { 2195 rcu_read_unlock(); 2196 return PTR_ERR(mpath); 2197 } 2198 2199 mesh_path_fix_nexthop(mpath, sta); 2200 2201 rcu_read_unlock(); 2202 return 0; 2203 } 2204 2205 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2206 const u8 *dst) 2207 { 2208 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2209 2210 if (dst) 2211 return mesh_path_del(sdata, dst); 2212 2213 mesh_path_flush_by_iface(sdata); 2214 return 0; 2215 } 2216 2217 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2218 const u8 *dst, const u8 *next_hop) 2219 { 2220 struct ieee80211_sub_if_data *sdata; 2221 struct mesh_path *mpath; 2222 struct sta_info *sta; 2223 2224 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2225 2226 rcu_read_lock(); 2227 2228 sta = sta_info_get(sdata, next_hop); 2229 if (!sta) { 2230 rcu_read_unlock(); 2231 return -ENOENT; 2232 } 2233 2234 mpath = mesh_path_lookup(sdata, dst); 2235 if (!mpath) { 2236 rcu_read_unlock(); 2237 return -ENOENT; 2238 } 2239 2240 mesh_path_fix_nexthop(mpath, sta); 2241 2242 rcu_read_unlock(); 2243 return 0; 2244 } 2245 2246 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2247 struct mpath_info *pinfo) 2248 { 2249 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2250 2251 if (next_hop_sta) 2252 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2253 else 2254 eth_zero_addr(next_hop); 2255 2256 memset(pinfo, 0, sizeof(*pinfo)); 2257 2258 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2259 2260 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2261 MPATH_INFO_SN | 2262 MPATH_INFO_METRIC | 2263 MPATH_INFO_EXPTIME | 2264 MPATH_INFO_DISCOVERY_TIMEOUT | 2265 MPATH_INFO_DISCOVERY_RETRIES | 2266 MPATH_INFO_FLAGS | 2267 MPATH_INFO_HOP_COUNT | 2268 MPATH_INFO_PATH_CHANGE; 2269 2270 pinfo->frame_qlen = mpath->frame_queue.qlen; 2271 pinfo->sn = mpath->sn; 2272 pinfo->metric = mpath->metric; 2273 if (time_before(jiffies, mpath->exp_time)) 2274 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2275 pinfo->discovery_timeout = 2276 jiffies_to_msecs(mpath->discovery_timeout); 2277 pinfo->discovery_retries = mpath->discovery_retries; 2278 if (mpath->flags & MESH_PATH_ACTIVE) 2279 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2280 if (mpath->flags & MESH_PATH_RESOLVING) 2281 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2282 if (mpath->flags & MESH_PATH_SN_VALID) 2283 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2284 if (mpath->flags & MESH_PATH_FIXED) 2285 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2286 if (mpath->flags & MESH_PATH_RESOLVED) 2287 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2288 pinfo->hop_count = mpath->hop_count; 2289 pinfo->path_change_count = mpath->path_change_count; 2290 } 2291 2292 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2293 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2294 2295 { 2296 struct ieee80211_sub_if_data *sdata; 2297 struct mesh_path *mpath; 2298 2299 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2300 2301 rcu_read_lock(); 2302 mpath = mesh_path_lookup(sdata, dst); 2303 if (!mpath) { 2304 rcu_read_unlock(); 2305 return -ENOENT; 2306 } 2307 memcpy(dst, mpath->dst, ETH_ALEN); 2308 mpath_set_pinfo(mpath, next_hop, pinfo); 2309 rcu_read_unlock(); 2310 return 0; 2311 } 2312 2313 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2314 int idx, u8 *dst, u8 *next_hop, 2315 struct mpath_info *pinfo) 2316 { 2317 struct ieee80211_sub_if_data *sdata; 2318 struct mesh_path *mpath; 2319 2320 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2321 2322 rcu_read_lock(); 2323 mpath = mesh_path_lookup_by_idx(sdata, idx); 2324 if (!mpath) { 2325 rcu_read_unlock(); 2326 return -ENOENT; 2327 } 2328 memcpy(dst, mpath->dst, ETH_ALEN); 2329 mpath_set_pinfo(mpath, next_hop, pinfo); 2330 rcu_read_unlock(); 2331 return 0; 2332 } 2333 2334 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2335 struct mpath_info *pinfo) 2336 { 2337 memset(pinfo, 0, sizeof(*pinfo)); 2338 memcpy(mpp, mpath->mpp, ETH_ALEN); 2339 2340 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2341 } 2342 2343 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2344 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2345 2346 { 2347 struct ieee80211_sub_if_data *sdata; 2348 struct mesh_path *mpath; 2349 2350 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2351 2352 rcu_read_lock(); 2353 mpath = mpp_path_lookup(sdata, dst); 2354 if (!mpath) { 2355 rcu_read_unlock(); 2356 return -ENOENT; 2357 } 2358 memcpy(dst, mpath->dst, ETH_ALEN); 2359 mpp_set_pinfo(mpath, mpp, pinfo); 2360 rcu_read_unlock(); 2361 return 0; 2362 } 2363 2364 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2365 int idx, u8 *dst, u8 *mpp, 2366 struct mpath_info *pinfo) 2367 { 2368 struct ieee80211_sub_if_data *sdata; 2369 struct mesh_path *mpath; 2370 2371 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2372 2373 rcu_read_lock(); 2374 mpath = mpp_path_lookup_by_idx(sdata, idx); 2375 if (!mpath) { 2376 rcu_read_unlock(); 2377 return -ENOENT; 2378 } 2379 memcpy(dst, mpath->dst, ETH_ALEN); 2380 mpp_set_pinfo(mpath, mpp, pinfo); 2381 rcu_read_unlock(); 2382 return 0; 2383 } 2384 2385 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2386 struct net_device *dev, 2387 struct mesh_config *conf) 2388 { 2389 struct ieee80211_sub_if_data *sdata; 2390 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2391 2392 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2393 return 0; 2394 } 2395 2396 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2397 { 2398 return (mask >> (parm-1)) & 0x1; 2399 } 2400 2401 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2402 const struct mesh_setup *setup) 2403 { 2404 u8 *new_ie; 2405 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2406 struct ieee80211_sub_if_data, u.mesh); 2407 int i; 2408 2409 /* allocate information elements */ 2410 new_ie = NULL; 2411 2412 if (setup->ie_len) { 2413 new_ie = kmemdup(setup->ie, setup->ie_len, 2414 GFP_KERNEL); 2415 if (!new_ie) 2416 return -ENOMEM; 2417 } 2418 ifmsh->ie_len = setup->ie_len; 2419 ifmsh->ie = new_ie; 2420 2421 /* now copy the rest of the setup parameters */ 2422 ifmsh->mesh_id_len = setup->mesh_id_len; 2423 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2424 ifmsh->mesh_sp_id = setup->sync_method; 2425 ifmsh->mesh_pp_id = setup->path_sel_proto; 2426 ifmsh->mesh_pm_id = setup->path_metric; 2427 ifmsh->user_mpm = setup->user_mpm; 2428 ifmsh->mesh_auth_id = setup->auth_id; 2429 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2430 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2431 if (setup->is_authenticated) 2432 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2433 if (setup->is_secure) 2434 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2435 2436 /* mcast rate setting in Mesh Node */ 2437 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2438 sizeof(setup->mcast_rate)); 2439 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2440 2441 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2442 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2443 2444 sdata->beacon_rate_set = false; 2445 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2446 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2447 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2448 sdata->beacon_rateidx_mask[i] = 2449 setup->beacon_rate.control[i].legacy; 2450 if (sdata->beacon_rateidx_mask[i]) 2451 sdata->beacon_rate_set = true; 2452 } 2453 } 2454 2455 return 0; 2456 } 2457 2458 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2459 struct net_device *dev, u32 mask, 2460 const struct mesh_config *nconf) 2461 { 2462 struct mesh_config *conf; 2463 struct ieee80211_sub_if_data *sdata; 2464 struct ieee80211_if_mesh *ifmsh; 2465 2466 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2467 ifmsh = &sdata->u.mesh; 2468 2469 /* Set the config options which we are interested in setting */ 2470 conf = &(sdata->u.mesh.mshcfg); 2471 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2472 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2473 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2474 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2475 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2476 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2477 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2478 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2479 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2480 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2481 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2482 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2483 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2484 conf->element_ttl = nconf->element_ttl; 2485 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2486 if (ifmsh->user_mpm) 2487 return -EBUSY; 2488 conf->auto_open_plinks = nconf->auto_open_plinks; 2489 } 2490 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2491 conf->dot11MeshNbrOffsetMaxNeighbor = 2492 nconf->dot11MeshNbrOffsetMaxNeighbor; 2493 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2494 conf->dot11MeshHWMPmaxPREQretries = 2495 nconf->dot11MeshHWMPmaxPREQretries; 2496 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2497 conf->path_refresh_time = nconf->path_refresh_time; 2498 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2499 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2500 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2501 conf->dot11MeshHWMPactivePathTimeout = 2502 nconf->dot11MeshHWMPactivePathTimeout; 2503 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2504 conf->dot11MeshHWMPpreqMinInterval = 2505 nconf->dot11MeshHWMPpreqMinInterval; 2506 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2507 conf->dot11MeshHWMPperrMinInterval = 2508 nconf->dot11MeshHWMPperrMinInterval; 2509 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2510 mask)) 2511 conf->dot11MeshHWMPnetDiameterTraversalTime = 2512 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2513 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2514 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2515 ieee80211_mesh_root_setup(ifmsh); 2516 } 2517 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2518 /* our current gate announcement implementation rides on root 2519 * announcements, so require this ifmsh to also be a root node 2520 * */ 2521 if (nconf->dot11MeshGateAnnouncementProtocol && 2522 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2523 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2524 ieee80211_mesh_root_setup(ifmsh); 2525 } 2526 conf->dot11MeshGateAnnouncementProtocol = 2527 nconf->dot11MeshGateAnnouncementProtocol; 2528 } 2529 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2530 conf->dot11MeshHWMPRannInterval = 2531 nconf->dot11MeshHWMPRannInterval; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2533 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2534 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2535 /* our RSSI threshold implementation is supported only for 2536 * devices that report signal in dBm. 2537 */ 2538 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2539 return -ENOTSUPP; 2540 conf->rssi_threshold = nconf->rssi_threshold; 2541 } 2542 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2543 conf->ht_opmode = nconf->ht_opmode; 2544 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2545 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2546 BSS_CHANGED_HT); 2547 } 2548 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2549 conf->dot11MeshHWMPactivePathToRootTimeout = 2550 nconf->dot11MeshHWMPactivePathToRootTimeout; 2551 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2552 conf->dot11MeshHWMProotInterval = 2553 nconf->dot11MeshHWMProotInterval; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2555 conf->dot11MeshHWMPconfirmationInterval = 2556 nconf->dot11MeshHWMPconfirmationInterval; 2557 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2558 conf->power_mode = nconf->power_mode; 2559 ieee80211_mps_local_status_update(sdata); 2560 } 2561 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2562 conf->dot11MeshAwakeWindowDuration = 2563 nconf->dot11MeshAwakeWindowDuration; 2564 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2565 conf->plink_timeout = nconf->plink_timeout; 2566 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2567 conf->dot11MeshConnectedToMeshGate = 2568 nconf->dot11MeshConnectedToMeshGate; 2569 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2570 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2571 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2572 conf->dot11MeshConnectedToAuthServer = 2573 nconf->dot11MeshConnectedToAuthServer; 2574 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2575 return 0; 2576 } 2577 2578 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2579 const struct mesh_config *conf, 2580 const struct mesh_setup *setup) 2581 { 2582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2583 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2584 int err; 2585 2586 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2587 err = copy_mesh_setup(ifmsh, setup); 2588 if (err) 2589 return err; 2590 2591 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2592 2593 /* can mesh use other SMPS modes? */ 2594 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2595 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2596 2597 mutex_lock(&sdata->local->mtx); 2598 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2599 IEEE80211_CHANCTX_SHARED); 2600 mutex_unlock(&sdata->local->mtx); 2601 if (err) 2602 return err; 2603 2604 return ieee80211_start_mesh(sdata); 2605 } 2606 2607 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2608 { 2609 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2610 2611 ieee80211_stop_mesh(sdata); 2612 mutex_lock(&sdata->local->mtx); 2613 ieee80211_link_release_channel(&sdata->deflink); 2614 kfree(sdata->u.mesh.ie); 2615 mutex_unlock(&sdata->local->mtx); 2616 2617 return 0; 2618 } 2619 #endif 2620 2621 static int ieee80211_change_bss(struct wiphy *wiphy, 2622 struct net_device *dev, 2623 struct bss_parameters *params) 2624 { 2625 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2626 struct ieee80211_link_data *link; 2627 struct ieee80211_supported_band *sband; 2628 u32 changed = 0; 2629 2630 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2631 if (IS_ERR(link)) 2632 return PTR_ERR(link); 2633 2634 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2635 return -ENOENT; 2636 2637 sband = ieee80211_get_link_sband(link); 2638 if (!sband) 2639 return -EINVAL; 2640 2641 if (params->basic_rates) { 2642 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2643 wiphy->bands[sband->band], 2644 params->basic_rates, 2645 params->basic_rates_len, 2646 &link->conf->basic_rates)) 2647 return -EINVAL; 2648 changed |= BSS_CHANGED_BASIC_RATES; 2649 ieee80211_check_rate_mask(link); 2650 } 2651 2652 if (params->use_cts_prot >= 0) { 2653 link->conf->use_cts_prot = params->use_cts_prot; 2654 changed |= BSS_CHANGED_ERP_CTS_PROT; 2655 } 2656 if (params->use_short_preamble >= 0) { 2657 link->conf->use_short_preamble = params->use_short_preamble; 2658 changed |= BSS_CHANGED_ERP_PREAMBLE; 2659 } 2660 2661 if (!link->conf->use_short_slot && 2662 (sband->band == NL80211_BAND_5GHZ || 2663 sband->band == NL80211_BAND_6GHZ)) { 2664 link->conf->use_short_slot = true; 2665 changed |= BSS_CHANGED_ERP_SLOT; 2666 } 2667 2668 if (params->use_short_slot_time >= 0) { 2669 link->conf->use_short_slot = params->use_short_slot_time; 2670 changed |= BSS_CHANGED_ERP_SLOT; 2671 } 2672 2673 if (params->ap_isolate >= 0) { 2674 if (params->ap_isolate) 2675 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2676 else 2677 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2678 ieee80211_check_fast_rx_iface(sdata); 2679 } 2680 2681 if (params->ht_opmode >= 0) { 2682 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2683 changed |= BSS_CHANGED_HT; 2684 } 2685 2686 if (params->p2p_ctwindow >= 0) { 2687 link->conf->p2p_noa_attr.oppps_ctwindow &= 2688 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2689 link->conf->p2p_noa_attr.oppps_ctwindow |= 2690 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2691 changed |= BSS_CHANGED_P2P_PS; 2692 } 2693 2694 if (params->p2p_opp_ps > 0) { 2695 link->conf->p2p_noa_attr.oppps_ctwindow |= 2696 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2697 changed |= BSS_CHANGED_P2P_PS; 2698 } else if (params->p2p_opp_ps == 0) { 2699 link->conf->p2p_noa_attr.oppps_ctwindow &= 2700 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2701 changed |= BSS_CHANGED_P2P_PS; 2702 } 2703 2704 ieee80211_link_info_change_notify(sdata, link, changed); 2705 2706 return 0; 2707 } 2708 2709 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2710 struct net_device *dev, 2711 struct ieee80211_txq_params *params) 2712 { 2713 struct ieee80211_local *local = wiphy_priv(wiphy); 2714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2715 struct ieee80211_link_data *link = 2716 ieee80211_link_or_deflink(sdata, params->link_id, true); 2717 struct ieee80211_tx_queue_params p; 2718 2719 if (!local->ops->conf_tx) 2720 return -EOPNOTSUPP; 2721 2722 if (local->hw.queues < IEEE80211_NUM_ACS) 2723 return -EOPNOTSUPP; 2724 2725 if (IS_ERR(link)) 2726 return PTR_ERR(link); 2727 2728 memset(&p, 0, sizeof(p)); 2729 p.aifs = params->aifs; 2730 p.cw_max = params->cwmax; 2731 p.cw_min = params->cwmin; 2732 p.txop = params->txop; 2733 2734 /* 2735 * Setting tx queue params disables u-apsd because it's only 2736 * called in master mode. 2737 */ 2738 p.uapsd = false; 2739 2740 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2741 2742 link->tx_conf[params->ac] = p; 2743 if (drv_conf_tx(local, link, params->ac, &p)) { 2744 wiphy_debug(local->hw.wiphy, 2745 "failed to set TX queue parameters for AC %d\n", 2746 params->ac); 2747 return -EINVAL; 2748 } 2749 2750 ieee80211_link_info_change_notify(sdata, link, 2751 BSS_CHANGED_QOS); 2752 2753 return 0; 2754 } 2755 2756 #ifdef CONFIG_PM 2757 static int ieee80211_suspend(struct wiphy *wiphy, 2758 struct cfg80211_wowlan *wowlan) 2759 { 2760 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2761 } 2762 2763 static int ieee80211_resume(struct wiphy *wiphy) 2764 { 2765 return __ieee80211_resume(wiphy_priv(wiphy)); 2766 } 2767 #else 2768 #define ieee80211_suspend NULL 2769 #define ieee80211_resume NULL 2770 #endif 2771 2772 static int ieee80211_scan(struct wiphy *wiphy, 2773 struct cfg80211_scan_request *req) 2774 { 2775 struct ieee80211_sub_if_data *sdata; 2776 2777 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2778 2779 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2780 case NL80211_IFTYPE_STATION: 2781 case NL80211_IFTYPE_ADHOC: 2782 case NL80211_IFTYPE_MESH_POINT: 2783 case NL80211_IFTYPE_P2P_CLIENT: 2784 case NL80211_IFTYPE_P2P_DEVICE: 2785 break; 2786 case NL80211_IFTYPE_P2P_GO: 2787 if (sdata->local->ops->hw_scan) 2788 break; 2789 /* 2790 * FIXME: implement NoA while scanning in software, 2791 * for now fall through to allow scanning only when 2792 * beaconing hasn't been configured yet 2793 */ 2794 fallthrough; 2795 case NL80211_IFTYPE_AP: 2796 /* 2797 * If the scan has been forced (and the driver supports 2798 * forcing), don't care about being beaconing already. 2799 * This will create problems to the attached stations (e.g. all 2800 * the frames sent while scanning on other channel will be 2801 * lost) 2802 */ 2803 if (sdata->deflink.u.ap.beacon && 2804 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2805 !(req->flags & NL80211_SCAN_FLAG_AP))) 2806 return -EOPNOTSUPP; 2807 break; 2808 case NL80211_IFTYPE_NAN: 2809 default: 2810 return -EOPNOTSUPP; 2811 } 2812 2813 return ieee80211_request_scan(sdata, req); 2814 } 2815 2816 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2817 { 2818 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2819 } 2820 2821 static int 2822 ieee80211_sched_scan_start(struct wiphy *wiphy, 2823 struct net_device *dev, 2824 struct cfg80211_sched_scan_request *req) 2825 { 2826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2827 2828 if (!sdata->local->ops->sched_scan_start) 2829 return -EOPNOTSUPP; 2830 2831 return ieee80211_request_sched_scan_start(sdata, req); 2832 } 2833 2834 static int 2835 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2836 u64 reqid) 2837 { 2838 struct ieee80211_local *local = wiphy_priv(wiphy); 2839 2840 if (!local->ops->sched_scan_stop) 2841 return -EOPNOTSUPP; 2842 2843 return ieee80211_request_sched_scan_stop(local); 2844 } 2845 2846 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2847 struct cfg80211_auth_request *req) 2848 { 2849 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2850 } 2851 2852 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2853 struct cfg80211_assoc_request *req) 2854 { 2855 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2856 } 2857 2858 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2859 struct cfg80211_deauth_request *req) 2860 { 2861 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2862 } 2863 2864 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2865 struct cfg80211_disassoc_request *req) 2866 { 2867 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2868 } 2869 2870 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2871 struct cfg80211_ibss_params *params) 2872 { 2873 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2874 } 2875 2876 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2877 { 2878 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2879 } 2880 2881 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2882 struct ocb_setup *setup) 2883 { 2884 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2885 } 2886 2887 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2888 { 2889 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2890 } 2891 2892 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2893 int rate[NUM_NL80211_BANDS]) 2894 { 2895 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2896 2897 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2898 sizeof(int) * NUM_NL80211_BANDS); 2899 2900 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2901 BSS_CHANGED_MCAST_RATE); 2902 2903 return 0; 2904 } 2905 2906 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2907 { 2908 struct ieee80211_local *local = wiphy_priv(wiphy); 2909 int err; 2910 2911 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2912 ieee80211_check_fast_xmit_all(local); 2913 2914 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2915 2916 if (err) { 2917 ieee80211_check_fast_xmit_all(local); 2918 return err; 2919 } 2920 } 2921 2922 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2923 (changed & WIPHY_PARAM_DYN_ACK)) { 2924 s16 coverage_class; 2925 2926 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2927 wiphy->coverage_class : -1; 2928 err = drv_set_coverage_class(local, coverage_class); 2929 2930 if (err) 2931 return err; 2932 } 2933 2934 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2935 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2936 2937 if (err) 2938 return err; 2939 } 2940 2941 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2942 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2943 return -EINVAL; 2944 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2945 } 2946 if (changed & WIPHY_PARAM_RETRY_LONG) { 2947 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2948 return -EINVAL; 2949 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2950 } 2951 if (changed & 2952 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2953 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2954 2955 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2956 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2957 WIPHY_PARAM_TXQ_QUANTUM)) 2958 ieee80211_txq_set_params(local); 2959 2960 return 0; 2961 } 2962 2963 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2964 struct wireless_dev *wdev, 2965 enum nl80211_tx_power_setting type, int mbm) 2966 { 2967 struct ieee80211_local *local = wiphy_priv(wiphy); 2968 struct ieee80211_sub_if_data *sdata; 2969 enum nl80211_tx_power_setting txp_type = type; 2970 bool update_txp_type = false; 2971 bool has_monitor = false; 2972 2973 if (wdev) { 2974 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2975 2976 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2977 sdata = wiphy_dereference(local->hw.wiphy, 2978 local->monitor_sdata); 2979 if (!sdata) 2980 return -EOPNOTSUPP; 2981 } 2982 2983 switch (type) { 2984 case NL80211_TX_POWER_AUTOMATIC: 2985 sdata->deflink.user_power_level = 2986 IEEE80211_UNSET_POWER_LEVEL; 2987 txp_type = NL80211_TX_POWER_LIMITED; 2988 break; 2989 case NL80211_TX_POWER_LIMITED: 2990 case NL80211_TX_POWER_FIXED: 2991 if (mbm < 0 || (mbm % 100)) 2992 return -EOPNOTSUPP; 2993 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 2994 break; 2995 } 2996 2997 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2998 update_txp_type = true; 2999 sdata->vif.bss_conf.txpower_type = txp_type; 3000 } 3001 3002 ieee80211_recalc_txpower(sdata, update_txp_type); 3003 3004 return 0; 3005 } 3006 3007 switch (type) { 3008 case NL80211_TX_POWER_AUTOMATIC: 3009 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3010 txp_type = NL80211_TX_POWER_LIMITED; 3011 break; 3012 case NL80211_TX_POWER_LIMITED: 3013 case NL80211_TX_POWER_FIXED: 3014 if (mbm < 0 || (mbm % 100)) 3015 return -EOPNOTSUPP; 3016 local->user_power_level = MBM_TO_DBM(mbm); 3017 break; 3018 } 3019 3020 mutex_lock(&local->iflist_mtx); 3021 list_for_each_entry(sdata, &local->interfaces, list) { 3022 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3023 has_monitor = true; 3024 continue; 3025 } 3026 sdata->deflink.user_power_level = local->user_power_level; 3027 if (txp_type != sdata->vif.bss_conf.txpower_type) 3028 update_txp_type = true; 3029 sdata->vif.bss_conf.txpower_type = txp_type; 3030 } 3031 list_for_each_entry(sdata, &local->interfaces, list) { 3032 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3033 continue; 3034 ieee80211_recalc_txpower(sdata, update_txp_type); 3035 } 3036 mutex_unlock(&local->iflist_mtx); 3037 3038 if (has_monitor) { 3039 sdata = wiphy_dereference(local->hw.wiphy, 3040 local->monitor_sdata); 3041 if (sdata) { 3042 sdata->deflink.user_power_level = local->user_power_level; 3043 if (txp_type != sdata->vif.bss_conf.txpower_type) 3044 update_txp_type = true; 3045 sdata->vif.bss_conf.txpower_type = txp_type; 3046 3047 ieee80211_recalc_txpower(sdata, update_txp_type); 3048 } 3049 } 3050 3051 return 0; 3052 } 3053 3054 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3055 struct wireless_dev *wdev, 3056 int *dbm) 3057 { 3058 struct ieee80211_local *local = wiphy_priv(wiphy); 3059 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3060 3061 if (local->ops->get_txpower) 3062 return drv_get_txpower(local, sdata, dbm); 3063 3064 if (!local->use_chanctx) 3065 *dbm = local->hw.conf.power_level; 3066 else 3067 *dbm = sdata->vif.bss_conf.txpower; 3068 3069 return 0; 3070 } 3071 3072 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3073 { 3074 struct ieee80211_local *local = wiphy_priv(wiphy); 3075 3076 drv_rfkill_poll(local); 3077 } 3078 3079 #ifdef CONFIG_NL80211_TESTMODE 3080 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3081 struct wireless_dev *wdev, 3082 void *data, int len) 3083 { 3084 struct ieee80211_local *local = wiphy_priv(wiphy); 3085 struct ieee80211_vif *vif = NULL; 3086 3087 if (!local->ops->testmode_cmd) 3088 return -EOPNOTSUPP; 3089 3090 if (wdev) { 3091 struct ieee80211_sub_if_data *sdata; 3092 3093 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3094 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3095 vif = &sdata->vif; 3096 } 3097 3098 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3099 } 3100 3101 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3102 struct sk_buff *skb, 3103 struct netlink_callback *cb, 3104 void *data, int len) 3105 { 3106 struct ieee80211_local *local = wiphy_priv(wiphy); 3107 3108 if (!local->ops->testmode_dump) 3109 return -EOPNOTSUPP; 3110 3111 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3112 } 3113 #endif 3114 3115 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3116 struct ieee80211_link_data *link, 3117 enum ieee80211_smps_mode smps_mode) 3118 { 3119 const u8 *ap; 3120 enum ieee80211_smps_mode old_req; 3121 int err; 3122 struct sta_info *sta; 3123 bool tdls_peer_found = false; 3124 3125 lockdep_assert_held(&sdata->wdev.mtx); 3126 3127 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3128 return -EINVAL; 3129 3130 old_req = link->u.mgd.req_smps; 3131 link->u.mgd.req_smps = smps_mode; 3132 3133 if (old_req == smps_mode && 3134 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3135 return 0; 3136 3137 /* 3138 * If not associated, or current association is not an HT 3139 * association, there's no need to do anything, just store 3140 * the new value until we associate. 3141 */ 3142 if (!sdata->u.mgd.associated || 3143 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3144 return 0; 3145 3146 ap = link->u.mgd.bssid; 3147 3148 rcu_read_lock(); 3149 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3150 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3151 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3152 continue; 3153 3154 tdls_peer_found = true; 3155 break; 3156 } 3157 rcu_read_unlock(); 3158 3159 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3160 if (tdls_peer_found || !sdata->u.mgd.powersave) 3161 smps_mode = IEEE80211_SMPS_OFF; 3162 else 3163 smps_mode = IEEE80211_SMPS_DYNAMIC; 3164 } 3165 3166 /* send SM PS frame to AP */ 3167 err = ieee80211_send_smps_action(sdata, smps_mode, 3168 ap, ap); 3169 if (err) 3170 link->u.mgd.req_smps = old_req; 3171 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3172 ieee80211_teardown_tdls_peers(sdata); 3173 3174 return err; 3175 } 3176 3177 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3178 bool enabled, int timeout) 3179 { 3180 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3181 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3182 unsigned int link_id; 3183 3184 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3185 return -EOPNOTSUPP; 3186 3187 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3188 return -EOPNOTSUPP; 3189 3190 if (enabled == sdata->u.mgd.powersave && 3191 timeout == local->dynamic_ps_forced_timeout) 3192 return 0; 3193 3194 sdata->u.mgd.powersave = enabled; 3195 local->dynamic_ps_forced_timeout = timeout; 3196 3197 /* no change, but if automatic follow powersave */ 3198 sdata_lock(sdata); 3199 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3200 struct ieee80211_link_data *link; 3201 3202 link = sdata_dereference(sdata->link[link_id], sdata); 3203 3204 if (!link) 3205 continue; 3206 __ieee80211_request_smps_mgd(sdata, link, 3207 link->u.mgd.req_smps); 3208 } 3209 sdata_unlock(sdata); 3210 3211 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3212 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3213 3214 ieee80211_recalc_ps(local); 3215 ieee80211_recalc_ps_vif(sdata); 3216 ieee80211_check_fast_rx_iface(sdata); 3217 3218 return 0; 3219 } 3220 3221 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3222 struct net_device *dev, 3223 s32 rssi_thold, u32 rssi_hyst) 3224 { 3225 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3226 struct ieee80211_vif *vif = &sdata->vif; 3227 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3228 3229 if (rssi_thold == bss_conf->cqm_rssi_thold && 3230 rssi_hyst == bss_conf->cqm_rssi_hyst) 3231 return 0; 3232 3233 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3234 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3235 return -EOPNOTSUPP; 3236 3237 bss_conf->cqm_rssi_thold = rssi_thold; 3238 bss_conf->cqm_rssi_hyst = rssi_hyst; 3239 bss_conf->cqm_rssi_low = 0; 3240 bss_conf->cqm_rssi_high = 0; 3241 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3242 3243 /* tell the driver upon association, unless already associated */ 3244 if (sdata->u.mgd.associated && 3245 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3246 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3247 BSS_CHANGED_CQM); 3248 3249 return 0; 3250 } 3251 3252 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3253 struct net_device *dev, 3254 s32 rssi_low, s32 rssi_high) 3255 { 3256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3257 struct ieee80211_vif *vif = &sdata->vif; 3258 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3259 3260 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3261 return -EOPNOTSUPP; 3262 3263 bss_conf->cqm_rssi_low = rssi_low; 3264 bss_conf->cqm_rssi_high = rssi_high; 3265 bss_conf->cqm_rssi_thold = 0; 3266 bss_conf->cqm_rssi_hyst = 0; 3267 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3268 3269 /* tell the driver upon association, unless already associated */ 3270 if (sdata->u.mgd.associated && 3271 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3272 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3273 BSS_CHANGED_CQM); 3274 3275 return 0; 3276 } 3277 3278 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3279 struct net_device *dev, 3280 unsigned int link_id, 3281 const u8 *addr, 3282 const struct cfg80211_bitrate_mask *mask) 3283 { 3284 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3285 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3286 int i, ret; 3287 3288 if (!ieee80211_sdata_running(sdata)) 3289 return -ENETDOWN; 3290 3291 /* 3292 * If active validate the setting and reject it if it doesn't leave 3293 * at least one basic rate usable, since we really have to be able 3294 * to send something, and if we're an AP we have to be able to do 3295 * so at a basic rate so that all clients can receive it. 3296 */ 3297 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3298 sdata->vif.bss_conf.chandef.chan) { 3299 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3300 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3301 3302 if (!(mask->control[band].legacy & basic_rates)) 3303 return -EINVAL; 3304 } 3305 3306 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3307 ret = drv_set_bitrate_mask(local, sdata, mask); 3308 if (ret) 3309 return ret; 3310 } 3311 3312 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3313 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3314 int j; 3315 3316 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3317 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3318 sizeof(mask->control[i].ht_mcs)); 3319 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3320 mask->control[i].vht_mcs, 3321 sizeof(mask->control[i].vht_mcs)); 3322 3323 sdata->rc_has_mcs_mask[i] = false; 3324 sdata->rc_has_vht_mcs_mask[i] = false; 3325 if (!sband) 3326 continue; 3327 3328 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3329 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3330 sdata->rc_has_mcs_mask[i] = true; 3331 break; 3332 } 3333 } 3334 3335 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3336 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3337 sdata->rc_has_vht_mcs_mask[i] = true; 3338 break; 3339 } 3340 } 3341 } 3342 3343 return 0; 3344 } 3345 3346 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3347 struct net_device *dev, 3348 struct cfg80211_chan_def *chandef, 3349 u32 cac_time_ms) 3350 { 3351 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3352 struct ieee80211_local *local = sdata->local; 3353 int err; 3354 3355 mutex_lock(&local->mtx); 3356 if (!list_empty(&local->roc_list) || local->scanning) { 3357 err = -EBUSY; 3358 goto out_unlock; 3359 } 3360 3361 /* whatever, but channel contexts should not complain about that one */ 3362 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3363 sdata->deflink.needed_rx_chains = local->rx_chains; 3364 3365 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3366 IEEE80211_CHANCTX_SHARED); 3367 if (err) 3368 goto out_unlock; 3369 3370 ieee80211_queue_delayed_work(&sdata->local->hw, 3371 &sdata->deflink.dfs_cac_timer_work, 3372 msecs_to_jiffies(cac_time_ms)); 3373 3374 out_unlock: 3375 mutex_unlock(&local->mtx); 3376 return err; 3377 } 3378 3379 static void ieee80211_end_cac(struct wiphy *wiphy, 3380 struct net_device *dev) 3381 { 3382 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3383 struct ieee80211_local *local = sdata->local; 3384 3385 mutex_lock(&local->mtx); 3386 list_for_each_entry(sdata, &local->interfaces, list) { 3387 /* it might be waiting for the local->mtx, but then 3388 * by the time it gets it, sdata->wdev.cac_started 3389 * will no longer be true 3390 */ 3391 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3392 3393 if (sdata->wdev.cac_started) { 3394 ieee80211_link_release_channel(&sdata->deflink); 3395 sdata->wdev.cac_started = false; 3396 } 3397 } 3398 mutex_unlock(&local->mtx); 3399 } 3400 3401 static struct cfg80211_beacon_data * 3402 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3403 { 3404 struct cfg80211_beacon_data *new_beacon; 3405 u8 *pos; 3406 int len; 3407 3408 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3409 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3410 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3411 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3412 3413 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3414 if (!new_beacon) 3415 return NULL; 3416 3417 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3418 new_beacon->mbssid_ies = 3419 kzalloc(struct_size(new_beacon->mbssid_ies, 3420 elem, beacon->mbssid_ies->cnt), 3421 GFP_KERNEL); 3422 if (!new_beacon->mbssid_ies) { 3423 kfree(new_beacon); 3424 return NULL; 3425 } 3426 } 3427 3428 pos = (u8 *)(new_beacon + 1); 3429 if (beacon->head_len) { 3430 new_beacon->head_len = beacon->head_len; 3431 new_beacon->head = pos; 3432 memcpy(pos, beacon->head, beacon->head_len); 3433 pos += beacon->head_len; 3434 } 3435 if (beacon->tail_len) { 3436 new_beacon->tail_len = beacon->tail_len; 3437 new_beacon->tail = pos; 3438 memcpy(pos, beacon->tail, beacon->tail_len); 3439 pos += beacon->tail_len; 3440 } 3441 if (beacon->beacon_ies_len) { 3442 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3443 new_beacon->beacon_ies = pos; 3444 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3445 pos += beacon->beacon_ies_len; 3446 } 3447 if (beacon->proberesp_ies_len) { 3448 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3449 new_beacon->proberesp_ies = pos; 3450 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3451 pos += beacon->proberesp_ies_len; 3452 } 3453 if (beacon->assocresp_ies_len) { 3454 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3455 new_beacon->assocresp_ies = pos; 3456 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3457 pos += beacon->assocresp_ies_len; 3458 } 3459 if (beacon->probe_resp_len) { 3460 new_beacon->probe_resp_len = beacon->probe_resp_len; 3461 new_beacon->probe_resp = pos; 3462 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3463 pos += beacon->probe_resp_len; 3464 } 3465 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3466 pos += ieee80211_copy_mbssid_beacon(pos, 3467 new_beacon->mbssid_ies, 3468 beacon->mbssid_ies); 3469 3470 /* might copy -1, meaning no changes requested */ 3471 new_beacon->ftm_responder = beacon->ftm_responder; 3472 if (beacon->lci) { 3473 new_beacon->lci_len = beacon->lci_len; 3474 new_beacon->lci = pos; 3475 memcpy(pos, beacon->lci, beacon->lci_len); 3476 pos += beacon->lci_len; 3477 } 3478 if (beacon->civicloc) { 3479 new_beacon->civicloc_len = beacon->civicloc_len; 3480 new_beacon->civicloc = pos; 3481 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3482 pos += beacon->civicloc_len; 3483 } 3484 3485 return new_beacon; 3486 } 3487 3488 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3489 { 3490 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3491 struct ieee80211_local *local = sdata->local; 3492 3493 rcu_read_lock(); 3494 3495 if (vif->mbssid_tx_vif == vif) { 3496 /* Trigger ieee80211_csa_finish() on the non-transmitting 3497 * interfaces when channel switch is received on 3498 * transmitting interface 3499 */ 3500 struct ieee80211_sub_if_data *iter; 3501 3502 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3503 if (!ieee80211_sdata_running(iter)) 3504 continue; 3505 3506 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3507 continue; 3508 3509 ieee80211_queue_work(&iter->local->hw, 3510 &iter->deflink.csa_finalize_work); 3511 } 3512 } 3513 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3514 3515 rcu_read_unlock(); 3516 } 3517 EXPORT_SYMBOL(ieee80211_csa_finish); 3518 3519 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3520 { 3521 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3522 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3523 struct ieee80211_local *local = sdata->local; 3524 3525 sdata->deflink.csa_block_tx = block_tx; 3526 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3527 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3528 } 3529 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3530 3531 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3532 u32 *changed) 3533 { 3534 int err; 3535 3536 switch (sdata->vif.type) { 3537 case NL80211_IFTYPE_AP: 3538 if (!sdata->deflink.u.ap.next_beacon) 3539 return -EINVAL; 3540 3541 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3542 sdata->deflink.u.ap.next_beacon, 3543 NULL, NULL); 3544 ieee80211_free_next_beacon(&sdata->deflink); 3545 3546 if (err < 0) 3547 return err; 3548 *changed |= err; 3549 break; 3550 case NL80211_IFTYPE_ADHOC: 3551 err = ieee80211_ibss_finish_csa(sdata); 3552 if (err < 0) 3553 return err; 3554 *changed |= err; 3555 break; 3556 #ifdef CONFIG_MAC80211_MESH 3557 case NL80211_IFTYPE_MESH_POINT: 3558 err = ieee80211_mesh_finish_csa(sdata); 3559 if (err < 0) 3560 return err; 3561 *changed |= err; 3562 break; 3563 #endif 3564 default: 3565 WARN_ON(1); 3566 return -EINVAL; 3567 } 3568 3569 return 0; 3570 } 3571 3572 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3573 { 3574 struct ieee80211_local *local = sdata->local; 3575 u32 changed = 0; 3576 int err; 3577 3578 sdata_assert_lock(sdata); 3579 lockdep_assert_held(&local->mtx); 3580 lockdep_assert_held(&local->chanctx_mtx); 3581 3582 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3583 sdata->vif.bss_conf.eht_puncturing = 3584 sdata->vif.bss_conf.csa_punct_bitmap; 3585 changed |= BSS_CHANGED_EHT_PUNCTURING; 3586 } 3587 3588 /* 3589 * using reservation isn't immediate as it may be deferred until later 3590 * with multi-vif. once reservation is complete it will re-schedule the 3591 * work with no reserved_chanctx so verify chandef to check if it 3592 * completed successfully 3593 */ 3594 3595 if (sdata->deflink.reserved_chanctx) { 3596 /* 3597 * with multi-vif csa driver may call ieee80211_csa_finish() 3598 * many times while waiting for other interfaces to use their 3599 * reservations 3600 */ 3601 if (sdata->deflink.reserved_ready) 3602 return 0; 3603 3604 return ieee80211_link_use_reserved_context(&sdata->deflink); 3605 } 3606 3607 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3608 &sdata->deflink.csa_chandef)) 3609 return -EINVAL; 3610 3611 sdata->vif.bss_conf.csa_active = false; 3612 3613 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3614 if (err) 3615 return err; 3616 3617 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3618 3619 if (sdata->deflink.csa_block_tx) { 3620 ieee80211_wake_vif_queues(local, sdata, 3621 IEEE80211_QUEUE_STOP_REASON_CSA); 3622 sdata->deflink.csa_block_tx = false; 3623 } 3624 3625 err = drv_post_channel_switch(sdata); 3626 if (err) 3627 return err; 3628 3629 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3630 sdata->vif.bss_conf.eht_puncturing); 3631 3632 return 0; 3633 } 3634 3635 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3636 { 3637 if (__ieee80211_csa_finalize(sdata)) { 3638 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3639 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3640 GFP_KERNEL); 3641 } 3642 } 3643 3644 void ieee80211_csa_finalize_work(struct work_struct *work) 3645 { 3646 struct ieee80211_sub_if_data *sdata = 3647 container_of(work, struct ieee80211_sub_if_data, 3648 deflink.csa_finalize_work); 3649 struct ieee80211_local *local = sdata->local; 3650 3651 sdata_lock(sdata); 3652 mutex_lock(&local->mtx); 3653 mutex_lock(&local->chanctx_mtx); 3654 3655 /* AP might have been stopped while waiting for the lock. */ 3656 if (!sdata->vif.bss_conf.csa_active) 3657 goto unlock; 3658 3659 if (!ieee80211_sdata_running(sdata)) 3660 goto unlock; 3661 3662 ieee80211_csa_finalize(sdata); 3663 3664 unlock: 3665 mutex_unlock(&local->chanctx_mtx); 3666 mutex_unlock(&local->mtx); 3667 sdata_unlock(sdata); 3668 } 3669 3670 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3671 struct cfg80211_csa_settings *params, 3672 u32 *changed) 3673 { 3674 struct ieee80211_csa_settings csa = {}; 3675 int err; 3676 3677 switch (sdata->vif.type) { 3678 case NL80211_IFTYPE_AP: 3679 sdata->deflink.u.ap.next_beacon = 3680 cfg80211_beacon_dup(¶ms->beacon_after); 3681 if (!sdata->deflink.u.ap.next_beacon) 3682 return -ENOMEM; 3683 3684 /* 3685 * With a count of 0, we don't have to wait for any 3686 * TBTT before switching, so complete the CSA 3687 * immediately. In theory, with a count == 1 we 3688 * should delay the switch until just before the next 3689 * TBTT, but that would complicate things so we switch 3690 * immediately too. If we would delay the switch 3691 * until the next TBTT, we would have to set the probe 3692 * response here. 3693 * 3694 * TODO: A channel switch with count <= 1 without 3695 * sending a CSA action frame is kind of useless, 3696 * because the clients won't know we're changing 3697 * channels. The action frame must be implemented 3698 * either here or in the userspace. 3699 */ 3700 if (params->count <= 1) 3701 break; 3702 3703 if ((params->n_counter_offsets_beacon > 3704 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3705 (params->n_counter_offsets_presp > 3706 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3707 ieee80211_free_next_beacon(&sdata->deflink); 3708 return -EINVAL; 3709 } 3710 3711 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3712 csa.counter_offsets_presp = params->counter_offsets_presp; 3713 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3714 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3715 csa.count = params->count; 3716 3717 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3718 ¶ms->beacon_csa, &csa, 3719 NULL); 3720 if (err < 0) { 3721 ieee80211_free_next_beacon(&sdata->deflink); 3722 return err; 3723 } 3724 *changed |= err; 3725 3726 break; 3727 case NL80211_IFTYPE_ADHOC: 3728 if (!sdata->vif.cfg.ibss_joined) 3729 return -EINVAL; 3730 3731 if (params->chandef.width != sdata->u.ibss.chandef.width) 3732 return -EINVAL; 3733 3734 switch (params->chandef.width) { 3735 case NL80211_CHAN_WIDTH_40: 3736 if (cfg80211_get_chandef_type(¶ms->chandef) != 3737 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3738 return -EINVAL; 3739 break; 3740 case NL80211_CHAN_WIDTH_5: 3741 case NL80211_CHAN_WIDTH_10: 3742 case NL80211_CHAN_WIDTH_20_NOHT: 3743 case NL80211_CHAN_WIDTH_20: 3744 break; 3745 default: 3746 return -EINVAL; 3747 } 3748 3749 /* changes into another band are not supported */ 3750 if (sdata->u.ibss.chandef.chan->band != 3751 params->chandef.chan->band) 3752 return -EINVAL; 3753 3754 /* see comments in the NL80211_IFTYPE_AP block */ 3755 if (params->count > 1) { 3756 err = ieee80211_ibss_csa_beacon(sdata, params); 3757 if (err < 0) 3758 return err; 3759 *changed |= err; 3760 } 3761 3762 ieee80211_send_action_csa(sdata, params); 3763 3764 break; 3765 #ifdef CONFIG_MAC80211_MESH 3766 case NL80211_IFTYPE_MESH_POINT: { 3767 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3768 3769 /* changes into another band are not supported */ 3770 if (sdata->vif.bss_conf.chandef.chan->band != 3771 params->chandef.chan->band) 3772 return -EINVAL; 3773 3774 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3775 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3776 if (!ifmsh->pre_value) 3777 ifmsh->pre_value = 1; 3778 else 3779 ifmsh->pre_value++; 3780 } 3781 3782 /* see comments in the NL80211_IFTYPE_AP block */ 3783 if (params->count > 1) { 3784 err = ieee80211_mesh_csa_beacon(sdata, params); 3785 if (err < 0) { 3786 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3787 return err; 3788 } 3789 *changed |= err; 3790 } 3791 3792 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3793 ieee80211_send_action_csa(sdata, params); 3794 3795 break; 3796 } 3797 #endif 3798 default: 3799 return -EOPNOTSUPP; 3800 } 3801 3802 return 0; 3803 } 3804 3805 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3806 { 3807 sdata->vif.bss_conf.color_change_active = false; 3808 3809 ieee80211_free_next_beacon(&sdata->deflink); 3810 3811 cfg80211_color_change_aborted_notify(sdata->dev); 3812 } 3813 3814 static int 3815 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3816 struct cfg80211_csa_settings *params) 3817 { 3818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3819 struct ieee80211_local *local = sdata->local; 3820 struct ieee80211_channel_switch ch_switch; 3821 struct ieee80211_chanctx_conf *conf; 3822 struct ieee80211_chanctx *chanctx; 3823 u32 changed = 0; 3824 int err; 3825 3826 sdata_assert_lock(sdata); 3827 lockdep_assert_held(&local->mtx); 3828 3829 if (!list_empty(&local->roc_list) || local->scanning) 3830 return -EBUSY; 3831 3832 if (sdata->wdev.cac_started) 3833 return -EBUSY; 3834 3835 if (cfg80211_chandef_identical(¶ms->chandef, 3836 &sdata->vif.bss_conf.chandef)) 3837 return -EINVAL; 3838 3839 /* don't allow another channel switch if one is already active. */ 3840 if (sdata->vif.bss_conf.csa_active) 3841 return -EBUSY; 3842 3843 mutex_lock(&local->chanctx_mtx); 3844 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3845 lockdep_is_held(&local->chanctx_mtx)); 3846 if (!conf) { 3847 err = -EBUSY; 3848 goto out; 3849 } 3850 3851 if (params->chandef.chan->freq_offset) { 3852 /* this may work, but is untested */ 3853 err = -EOPNOTSUPP; 3854 goto out; 3855 } 3856 3857 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3858 3859 ch_switch.timestamp = 0; 3860 ch_switch.device_timestamp = 0; 3861 ch_switch.block_tx = params->block_tx; 3862 ch_switch.chandef = params->chandef; 3863 ch_switch.count = params->count; 3864 3865 err = drv_pre_channel_switch(sdata, &ch_switch); 3866 if (err) 3867 goto out; 3868 3869 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3870 chanctx->mode, 3871 params->radar_required); 3872 if (err) 3873 goto out; 3874 3875 /* if reservation is invalid then this will fail */ 3876 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3877 if (err) { 3878 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3879 goto out; 3880 } 3881 3882 /* if there is a color change in progress, abort it */ 3883 if (sdata->vif.bss_conf.color_change_active) 3884 ieee80211_color_change_abort(sdata); 3885 3886 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3887 if (err) { 3888 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3889 goto out; 3890 } 3891 3892 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3893 goto out; 3894 3895 sdata->deflink.csa_chandef = params->chandef; 3896 sdata->deflink.csa_block_tx = params->block_tx; 3897 sdata->vif.bss_conf.csa_active = true; 3898 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3899 3900 if (sdata->deflink.csa_block_tx) 3901 ieee80211_stop_vif_queues(local, sdata, 3902 IEEE80211_QUEUE_STOP_REASON_CSA); 3903 3904 cfg80211_ch_switch_started_notify(sdata->dev, 3905 &sdata->deflink.csa_chandef, 0, 3906 params->count, params->block_tx, 3907 sdata->vif.bss_conf.csa_punct_bitmap); 3908 3909 if (changed) { 3910 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3911 changed); 3912 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3913 } else { 3914 /* if the beacon didn't change, we can finalize immediately */ 3915 ieee80211_csa_finalize(sdata); 3916 } 3917 3918 out: 3919 mutex_unlock(&local->chanctx_mtx); 3920 return err; 3921 } 3922 3923 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3924 struct cfg80211_csa_settings *params) 3925 { 3926 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3927 struct ieee80211_local *local = sdata->local; 3928 int err; 3929 3930 mutex_lock(&local->mtx); 3931 err = __ieee80211_channel_switch(wiphy, dev, params); 3932 mutex_unlock(&local->mtx); 3933 3934 return err; 3935 } 3936 3937 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3938 { 3939 lockdep_assert_held(&local->mtx); 3940 3941 local->roc_cookie_counter++; 3942 3943 /* wow, you wrapped 64 bits ... more likely a bug */ 3944 if (WARN_ON(local->roc_cookie_counter == 0)) 3945 local->roc_cookie_counter++; 3946 3947 return local->roc_cookie_counter; 3948 } 3949 3950 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3951 u64 *cookie, gfp_t gfp) 3952 { 3953 unsigned long spin_flags; 3954 struct sk_buff *ack_skb; 3955 int id; 3956 3957 ack_skb = skb_copy(skb, gfp); 3958 if (!ack_skb) 3959 return -ENOMEM; 3960 3961 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3962 id = idr_alloc(&local->ack_status_frames, ack_skb, 3963 1, 0x2000, GFP_ATOMIC); 3964 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3965 3966 if (id < 0) { 3967 kfree_skb(ack_skb); 3968 return -ENOMEM; 3969 } 3970 3971 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3972 3973 *cookie = ieee80211_mgmt_tx_cookie(local); 3974 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3975 3976 return 0; 3977 } 3978 3979 static void 3980 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3981 struct wireless_dev *wdev, 3982 struct mgmt_frame_regs *upd) 3983 { 3984 struct ieee80211_local *local = wiphy_priv(wiphy); 3985 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3986 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3987 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3988 bool global_change, intf_change; 3989 3990 global_change = 3991 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3992 (local->rx_mcast_action_reg != 3993 !!(upd->global_mcast_stypes & action_mask)); 3994 local->probe_req_reg = upd->global_stypes & preq_mask; 3995 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3996 3997 intf_change = (sdata->vif.probe_req_reg != 3998 !!(upd->interface_stypes & preq_mask)) || 3999 (sdata->vif.rx_mcast_action_reg != 4000 !!(upd->interface_mcast_stypes & action_mask)); 4001 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4002 sdata->vif.rx_mcast_action_reg = 4003 upd->interface_mcast_stypes & action_mask; 4004 4005 if (!local->open_count) 4006 return; 4007 4008 if (intf_change && ieee80211_sdata_running(sdata)) 4009 drv_config_iface_filter(local, sdata, 4010 sdata->vif.probe_req_reg ? 4011 FIF_PROBE_REQ : 0, 4012 FIF_PROBE_REQ); 4013 4014 if (global_change) 4015 ieee80211_configure_filter(local); 4016 } 4017 4018 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4019 { 4020 struct ieee80211_local *local = wiphy_priv(wiphy); 4021 4022 if (local->started) 4023 return -EOPNOTSUPP; 4024 4025 return drv_set_antenna(local, tx_ant, rx_ant); 4026 } 4027 4028 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4029 { 4030 struct ieee80211_local *local = wiphy_priv(wiphy); 4031 4032 return drv_get_antenna(local, tx_ant, rx_ant); 4033 } 4034 4035 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4036 struct net_device *dev, 4037 struct cfg80211_gtk_rekey_data *data) 4038 { 4039 struct ieee80211_local *local = wiphy_priv(wiphy); 4040 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4041 4042 if (!local->ops->set_rekey_data) 4043 return -EOPNOTSUPP; 4044 4045 drv_set_rekey_data(local, sdata, data); 4046 4047 return 0; 4048 } 4049 4050 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4051 const u8 *peer, u64 *cookie) 4052 { 4053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4054 struct ieee80211_local *local = sdata->local; 4055 struct ieee80211_qos_hdr *nullfunc; 4056 struct sk_buff *skb; 4057 int size = sizeof(*nullfunc); 4058 __le16 fc; 4059 bool qos; 4060 struct ieee80211_tx_info *info; 4061 struct sta_info *sta; 4062 struct ieee80211_chanctx_conf *chanctx_conf; 4063 enum nl80211_band band; 4064 int ret; 4065 4066 /* the lock is needed to assign the cookie later */ 4067 mutex_lock(&local->mtx); 4068 4069 rcu_read_lock(); 4070 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4071 if (WARN_ON(!chanctx_conf)) { 4072 ret = -EINVAL; 4073 goto unlock; 4074 } 4075 band = chanctx_conf->def.chan->band; 4076 sta = sta_info_get_bss(sdata, peer); 4077 if (sta) { 4078 qos = sta->sta.wme; 4079 } else { 4080 ret = -ENOLINK; 4081 goto unlock; 4082 } 4083 4084 if (qos) { 4085 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4086 IEEE80211_STYPE_QOS_NULLFUNC | 4087 IEEE80211_FCTL_FROMDS); 4088 } else { 4089 size -= 2; 4090 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4091 IEEE80211_STYPE_NULLFUNC | 4092 IEEE80211_FCTL_FROMDS); 4093 } 4094 4095 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4096 if (!skb) { 4097 ret = -ENOMEM; 4098 goto unlock; 4099 } 4100 4101 skb->dev = dev; 4102 4103 skb_reserve(skb, local->hw.extra_tx_headroom); 4104 4105 nullfunc = skb_put(skb, size); 4106 nullfunc->frame_control = fc; 4107 nullfunc->duration_id = 0; 4108 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4109 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4110 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4111 nullfunc->seq_ctrl = 0; 4112 4113 info = IEEE80211_SKB_CB(skb); 4114 4115 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4116 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4117 info->band = band; 4118 4119 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4120 skb->priority = 7; 4121 if (qos) 4122 nullfunc->qos_ctrl = cpu_to_le16(7); 4123 4124 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4125 if (ret) { 4126 kfree_skb(skb); 4127 goto unlock; 4128 } 4129 4130 local_bh_disable(); 4131 ieee80211_xmit(sdata, sta, skb); 4132 local_bh_enable(); 4133 4134 ret = 0; 4135 unlock: 4136 rcu_read_unlock(); 4137 mutex_unlock(&local->mtx); 4138 4139 return ret; 4140 } 4141 4142 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4143 struct wireless_dev *wdev, 4144 unsigned int link_id, 4145 struct cfg80211_chan_def *chandef) 4146 { 4147 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4148 struct ieee80211_local *local = wiphy_priv(wiphy); 4149 struct ieee80211_chanctx_conf *chanctx_conf; 4150 struct ieee80211_link_data *link; 4151 int ret = -ENODATA; 4152 4153 rcu_read_lock(); 4154 link = rcu_dereference(sdata->link[link_id]); 4155 if (!link) { 4156 ret = -ENOLINK; 4157 goto out; 4158 } 4159 4160 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4161 if (chanctx_conf) { 4162 *chandef = link->conf->chandef; 4163 ret = 0; 4164 } else if (local->open_count > 0 && 4165 local->open_count == local->monitors && 4166 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4167 if (local->use_chanctx) 4168 *chandef = local->monitor_chandef; 4169 else 4170 *chandef = local->_oper_chandef; 4171 ret = 0; 4172 } 4173 out: 4174 rcu_read_unlock(); 4175 4176 return ret; 4177 } 4178 4179 #ifdef CONFIG_PM 4180 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4181 { 4182 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4183 } 4184 #endif 4185 4186 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4187 struct net_device *dev, 4188 struct cfg80211_qos_map *qos_map) 4189 { 4190 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4191 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4192 4193 if (qos_map) { 4194 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4195 if (!new_qos_map) 4196 return -ENOMEM; 4197 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4198 } else { 4199 /* A NULL qos_map was passed to disable QoS mapping */ 4200 new_qos_map = NULL; 4201 } 4202 4203 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4204 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4205 if (old_qos_map) 4206 kfree_rcu(old_qos_map, rcu_head); 4207 4208 return 0; 4209 } 4210 4211 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4212 struct net_device *dev, 4213 unsigned int link_id, 4214 struct cfg80211_chan_def *chandef) 4215 { 4216 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4217 struct ieee80211_link_data *link; 4218 int ret; 4219 u64 changed = 0; 4220 4221 link = sdata_dereference(sdata->link[link_id], sdata); 4222 4223 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4224 if (ret == 0) 4225 ieee80211_link_info_change_notify(sdata, link, changed); 4226 4227 return ret; 4228 } 4229 4230 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4231 u8 tsid, const u8 *peer, u8 up, 4232 u16 admitted_time) 4233 { 4234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4235 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4236 int ac = ieee802_1d_to_ac[up]; 4237 4238 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4239 return -EOPNOTSUPP; 4240 4241 if (!(sdata->wmm_acm & BIT(up))) 4242 return -EINVAL; 4243 4244 if (ifmgd->tx_tspec[ac].admitted_time) 4245 return -EBUSY; 4246 4247 if (admitted_time) { 4248 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4249 ifmgd->tx_tspec[ac].tsid = tsid; 4250 ifmgd->tx_tspec[ac].up = up; 4251 } 4252 4253 return 0; 4254 } 4255 4256 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4257 u8 tsid, const u8 *peer) 4258 { 4259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4260 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4261 struct ieee80211_local *local = wiphy_priv(wiphy); 4262 int ac; 4263 4264 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4265 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4266 4267 /* skip unused entries */ 4268 if (!tx_tspec->admitted_time) 4269 continue; 4270 4271 if (tx_tspec->tsid != tsid) 4272 continue; 4273 4274 /* due to this new packets will be reassigned to non-ACM ACs */ 4275 tx_tspec->up = -1; 4276 4277 /* Make sure that all packets have been sent to avoid to 4278 * restore the QoS params on packets that are still on the 4279 * queues. 4280 */ 4281 synchronize_net(); 4282 ieee80211_flush_queues(local, sdata, false); 4283 4284 /* restore the normal QoS parameters 4285 * (unconditionally to avoid races) 4286 */ 4287 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4288 tx_tspec->downgraded = false; 4289 ieee80211_sta_handle_tspec_ac_params(sdata); 4290 4291 /* finally clear all the data */ 4292 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4293 4294 return 0; 4295 } 4296 4297 return -ENOENT; 4298 } 4299 4300 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4301 u8 inst_id, 4302 enum nl80211_nan_func_term_reason reason, 4303 gfp_t gfp) 4304 { 4305 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4306 struct cfg80211_nan_func *func; 4307 u64 cookie; 4308 4309 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4310 return; 4311 4312 spin_lock_bh(&sdata->u.nan.func_lock); 4313 4314 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4315 if (WARN_ON(!func)) { 4316 spin_unlock_bh(&sdata->u.nan.func_lock); 4317 return; 4318 } 4319 4320 cookie = func->cookie; 4321 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4322 4323 spin_unlock_bh(&sdata->u.nan.func_lock); 4324 4325 cfg80211_free_nan_func(func); 4326 4327 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4328 reason, cookie, gfp); 4329 } 4330 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4331 4332 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4333 struct cfg80211_nan_match_params *match, 4334 gfp_t gfp) 4335 { 4336 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4337 struct cfg80211_nan_func *func; 4338 4339 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4340 return; 4341 4342 spin_lock_bh(&sdata->u.nan.func_lock); 4343 4344 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4345 if (WARN_ON(!func)) { 4346 spin_unlock_bh(&sdata->u.nan.func_lock); 4347 return; 4348 } 4349 match->cookie = func->cookie; 4350 4351 spin_unlock_bh(&sdata->u.nan.func_lock); 4352 4353 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4354 } 4355 EXPORT_SYMBOL(ieee80211_nan_func_match); 4356 4357 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4358 struct net_device *dev, 4359 const bool enabled) 4360 { 4361 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4362 4363 sdata->u.ap.multicast_to_unicast = enabled; 4364 4365 return 0; 4366 } 4367 4368 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4369 struct txq_info *txqi) 4370 { 4371 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4372 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4373 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4374 } 4375 4376 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4377 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4378 txqstats->backlog_packets = txqi->tin.backlog_packets; 4379 } 4380 4381 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4382 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4383 txqstats->flows = txqi->tin.flows; 4384 } 4385 4386 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4387 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4388 txqstats->drops = txqi->cstats.drop_count; 4389 } 4390 4391 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4392 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4393 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4394 } 4395 4396 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4397 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4398 txqstats->overlimit = txqi->tin.overlimit; 4399 } 4400 4401 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4402 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4403 txqstats->collisions = txqi->tin.collisions; 4404 } 4405 4406 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4407 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4408 txqstats->tx_bytes = txqi->tin.tx_bytes; 4409 } 4410 4411 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4412 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4413 txqstats->tx_packets = txqi->tin.tx_packets; 4414 } 4415 } 4416 4417 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4418 struct wireless_dev *wdev, 4419 struct cfg80211_txq_stats *txqstats) 4420 { 4421 struct ieee80211_local *local = wiphy_priv(wiphy); 4422 struct ieee80211_sub_if_data *sdata; 4423 int ret = 0; 4424 4425 spin_lock_bh(&local->fq.lock); 4426 rcu_read_lock(); 4427 4428 if (wdev) { 4429 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4430 if (!sdata->vif.txq) { 4431 ret = 1; 4432 goto out; 4433 } 4434 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4435 } else { 4436 /* phy stats */ 4437 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4438 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4439 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4440 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4441 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4442 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4443 txqstats->backlog_packets = local->fq.backlog; 4444 txqstats->backlog_bytes = local->fq.memory_usage; 4445 txqstats->overlimit = local->fq.overlimit; 4446 txqstats->overmemory = local->fq.overmemory; 4447 txqstats->collisions = local->fq.collisions; 4448 txqstats->max_flows = local->fq.flows_cnt; 4449 } 4450 4451 out: 4452 rcu_read_unlock(); 4453 spin_unlock_bh(&local->fq.lock); 4454 4455 return ret; 4456 } 4457 4458 static int 4459 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4460 struct net_device *dev, 4461 struct cfg80211_ftm_responder_stats *ftm_stats) 4462 { 4463 struct ieee80211_local *local = wiphy_priv(wiphy); 4464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4465 4466 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4467 } 4468 4469 static int 4470 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4471 struct cfg80211_pmsr_request *request) 4472 { 4473 struct ieee80211_local *local = wiphy_priv(wiphy); 4474 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4475 4476 return drv_start_pmsr(local, sdata, request); 4477 } 4478 4479 static void 4480 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4481 struct cfg80211_pmsr_request *request) 4482 { 4483 struct ieee80211_local *local = wiphy_priv(wiphy); 4484 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4485 4486 return drv_abort_pmsr(local, sdata, request); 4487 } 4488 4489 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4490 struct net_device *dev, 4491 struct cfg80211_tid_config *tid_conf) 4492 { 4493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4494 struct sta_info *sta; 4495 int ret; 4496 4497 if (!sdata->local->ops->set_tid_config) 4498 return -EOPNOTSUPP; 4499 4500 if (!tid_conf->peer) 4501 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4502 4503 mutex_lock(&sdata->local->sta_mtx); 4504 sta = sta_info_get_bss(sdata, tid_conf->peer); 4505 if (!sta) { 4506 mutex_unlock(&sdata->local->sta_mtx); 4507 return -ENOENT; 4508 } 4509 4510 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4511 mutex_unlock(&sdata->local->sta_mtx); 4512 4513 return ret; 4514 } 4515 4516 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4517 struct net_device *dev, 4518 const u8 *peer, u8 tids) 4519 { 4520 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4521 struct sta_info *sta; 4522 int ret; 4523 4524 if (!sdata->local->ops->reset_tid_config) 4525 return -EOPNOTSUPP; 4526 4527 if (!peer) 4528 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4529 4530 mutex_lock(&sdata->local->sta_mtx); 4531 sta = sta_info_get_bss(sdata, peer); 4532 if (!sta) { 4533 mutex_unlock(&sdata->local->sta_mtx); 4534 return -ENOENT; 4535 } 4536 4537 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4538 mutex_unlock(&sdata->local->sta_mtx); 4539 4540 return ret; 4541 } 4542 4543 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4544 struct cfg80211_sar_specs *sar) 4545 { 4546 struct ieee80211_local *local = wiphy_priv(wiphy); 4547 4548 if (!local->ops->set_sar_specs) 4549 return -EOPNOTSUPP; 4550 4551 return local->ops->set_sar_specs(&local->hw, sar); 4552 } 4553 4554 static int 4555 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4556 u32 *changed) 4557 { 4558 switch (sdata->vif.type) { 4559 case NL80211_IFTYPE_AP: { 4560 int ret; 4561 4562 if (!sdata->deflink.u.ap.next_beacon) 4563 return -EINVAL; 4564 4565 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4566 sdata->deflink.u.ap.next_beacon, 4567 NULL, NULL); 4568 ieee80211_free_next_beacon(&sdata->deflink); 4569 4570 if (ret < 0) 4571 return ret; 4572 4573 *changed |= ret; 4574 break; 4575 } 4576 default: 4577 WARN_ON_ONCE(1); 4578 return -EINVAL; 4579 } 4580 4581 return 0; 4582 } 4583 4584 static int 4585 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4586 struct cfg80211_color_change_settings *params, 4587 u32 *changed) 4588 { 4589 struct ieee80211_color_change_settings color_change = {}; 4590 int err; 4591 4592 switch (sdata->vif.type) { 4593 case NL80211_IFTYPE_AP: 4594 sdata->deflink.u.ap.next_beacon = 4595 cfg80211_beacon_dup(¶ms->beacon_next); 4596 if (!sdata->deflink.u.ap.next_beacon) 4597 return -ENOMEM; 4598 4599 if (params->count <= 1) 4600 break; 4601 4602 color_change.counter_offset_beacon = 4603 params->counter_offset_beacon; 4604 color_change.counter_offset_presp = 4605 params->counter_offset_presp; 4606 color_change.count = params->count; 4607 4608 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4609 ¶ms->beacon_color_change, 4610 NULL, &color_change); 4611 if (err < 0) { 4612 ieee80211_free_next_beacon(&sdata->deflink); 4613 return err; 4614 } 4615 *changed |= err; 4616 break; 4617 default: 4618 return -EOPNOTSUPP; 4619 } 4620 4621 return 0; 4622 } 4623 4624 static void 4625 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4626 u8 color, int enable, u32 changed) 4627 { 4628 sdata->vif.bss_conf.he_bss_color.color = color; 4629 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4630 changed |= BSS_CHANGED_HE_BSS_COLOR; 4631 4632 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4633 4634 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4635 struct ieee80211_sub_if_data *child; 4636 4637 mutex_lock(&sdata->local->iflist_mtx); 4638 list_for_each_entry(child, &sdata->local->interfaces, list) { 4639 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4640 child->vif.bss_conf.he_bss_color.color = color; 4641 child->vif.bss_conf.he_bss_color.enabled = enable; 4642 ieee80211_link_info_change_notify(child, 4643 &child->deflink, 4644 BSS_CHANGED_HE_BSS_COLOR); 4645 } 4646 } 4647 mutex_unlock(&sdata->local->iflist_mtx); 4648 } 4649 } 4650 4651 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4652 { 4653 struct ieee80211_local *local = sdata->local; 4654 u32 changed = 0; 4655 int err; 4656 4657 sdata_assert_lock(sdata); 4658 lockdep_assert_held(&local->mtx); 4659 4660 sdata->vif.bss_conf.color_change_active = false; 4661 4662 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4663 if (err) { 4664 cfg80211_color_change_aborted_notify(sdata->dev); 4665 return err; 4666 } 4667 4668 ieee80211_color_change_bss_config_notify(sdata, 4669 sdata->vif.bss_conf.color_change_color, 4670 1, changed); 4671 cfg80211_color_change_notify(sdata->dev); 4672 4673 return 0; 4674 } 4675 4676 void ieee80211_color_change_finalize_work(struct work_struct *work) 4677 { 4678 struct ieee80211_sub_if_data *sdata = 4679 container_of(work, struct ieee80211_sub_if_data, 4680 deflink.color_change_finalize_work); 4681 struct ieee80211_local *local = sdata->local; 4682 4683 sdata_lock(sdata); 4684 mutex_lock(&local->mtx); 4685 4686 /* AP might have been stopped while waiting for the lock. */ 4687 if (!sdata->vif.bss_conf.color_change_active) 4688 goto unlock; 4689 4690 if (!ieee80211_sdata_running(sdata)) 4691 goto unlock; 4692 4693 ieee80211_color_change_finalize(sdata); 4694 4695 unlock: 4696 mutex_unlock(&local->mtx); 4697 sdata_unlock(sdata); 4698 } 4699 4700 void ieee80211_color_collision_detection_work(struct work_struct *work) 4701 { 4702 struct delayed_work *delayed_work = to_delayed_work(work); 4703 struct ieee80211_link_data *link = 4704 container_of(delayed_work, struct ieee80211_link_data, 4705 color_collision_detect_work); 4706 struct ieee80211_sub_if_data *sdata = link->sdata; 4707 4708 sdata_lock(sdata); 4709 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4710 sdata_unlock(sdata); 4711 } 4712 4713 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4714 { 4715 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4716 4717 ieee80211_queue_work(&sdata->local->hw, 4718 &sdata->deflink.color_change_finalize_work); 4719 } 4720 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4721 4722 void 4723 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4724 u64 color_bitmap, gfp_t gfp) 4725 { 4726 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4727 struct ieee80211_link_data *link = &sdata->deflink; 4728 4729 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4730 return; 4731 4732 if (delayed_work_pending(&link->color_collision_detect_work)) 4733 return; 4734 4735 link->color_bitmap = color_bitmap; 4736 /* queue the color collision detection event every 500 ms in order to 4737 * avoid sending too much netlink messages to userspace. 4738 */ 4739 ieee80211_queue_delayed_work(&sdata->local->hw, 4740 &link->color_collision_detect_work, 4741 msecs_to_jiffies(500)); 4742 } 4743 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4744 4745 static int 4746 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4747 struct cfg80211_color_change_settings *params) 4748 { 4749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4750 struct ieee80211_local *local = sdata->local; 4751 u32 changed = 0; 4752 int err; 4753 4754 sdata_assert_lock(sdata); 4755 4756 if (sdata->vif.bss_conf.nontransmitted) 4757 return -EINVAL; 4758 4759 mutex_lock(&local->mtx); 4760 4761 /* don't allow another color change if one is already active or if csa 4762 * is active 4763 */ 4764 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4765 err = -EBUSY; 4766 goto out; 4767 } 4768 4769 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4770 if (err) 4771 goto out; 4772 4773 sdata->vif.bss_conf.color_change_active = true; 4774 sdata->vif.bss_conf.color_change_color = params->color; 4775 4776 cfg80211_color_change_started_notify(sdata->dev, params->count); 4777 4778 if (changed) 4779 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4780 else 4781 /* if the beacon didn't change, we can finalize immediately */ 4782 ieee80211_color_change_finalize(sdata); 4783 4784 out: 4785 mutex_unlock(&local->mtx); 4786 4787 return err; 4788 } 4789 4790 static int 4791 ieee80211_set_radar_background(struct wiphy *wiphy, 4792 struct cfg80211_chan_def *chandef) 4793 { 4794 struct ieee80211_local *local = wiphy_priv(wiphy); 4795 4796 if (!local->ops->set_radar_background) 4797 return -EOPNOTSUPP; 4798 4799 return local->ops->set_radar_background(&local->hw, chandef); 4800 } 4801 4802 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4803 struct wireless_dev *wdev, 4804 unsigned int link_id) 4805 { 4806 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4807 4808 if (wdev->use_4addr) 4809 return -EOPNOTSUPP; 4810 4811 return ieee80211_vif_set_links(sdata, wdev->valid_links); 4812 } 4813 4814 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4815 struct wireless_dev *wdev, 4816 unsigned int link_id) 4817 { 4818 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4819 4820 ieee80211_vif_set_links(sdata, wdev->valid_links); 4821 } 4822 4823 static int sta_add_link_station(struct ieee80211_local *local, 4824 struct ieee80211_sub_if_data *sdata, 4825 struct link_station_parameters *params) 4826 { 4827 struct sta_info *sta; 4828 int ret; 4829 4830 sta = sta_info_get_bss(sdata, params->mld_mac); 4831 if (!sta) 4832 return -ENOENT; 4833 4834 if (!sta->sta.valid_links) 4835 return -EINVAL; 4836 4837 if (sta->sta.valid_links & BIT(params->link_id)) 4838 return -EALREADY; 4839 4840 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4841 if (ret) 4842 return ret; 4843 4844 ret = sta_link_apply_parameters(local, sta, true, params); 4845 if (ret) { 4846 ieee80211_sta_free_link(sta, params->link_id); 4847 return ret; 4848 } 4849 4850 /* ieee80211_sta_activate_link frees the link upon failure */ 4851 return ieee80211_sta_activate_link(sta, params->link_id); 4852 } 4853 4854 static int 4855 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4856 struct link_station_parameters *params) 4857 { 4858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4859 struct ieee80211_local *local = wiphy_priv(wiphy); 4860 int ret; 4861 4862 mutex_lock(&sdata->local->sta_mtx); 4863 ret = sta_add_link_station(local, sdata, params); 4864 mutex_unlock(&sdata->local->sta_mtx); 4865 4866 return ret; 4867 } 4868 4869 static int sta_mod_link_station(struct ieee80211_local *local, 4870 struct ieee80211_sub_if_data *sdata, 4871 struct link_station_parameters *params) 4872 { 4873 struct sta_info *sta; 4874 4875 sta = sta_info_get_bss(sdata, params->mld_mac); 4876 if (!sta) 4877 return -ENOENT; 4878 4879 if (!(sta->sta.valid_links & BIT(params->link_id))) 4880 return -EINVAL; 4881 4882 return sta_link_apply_parameters(local, sta, false, params); 4883 } 4884 4885 static int 4886 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4887 struct link_station_parameters *params) 4888 { 4889 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4890 struct ieee80211_local *local = wiphy_priv(wiphy); 4891 int ret; 4892 4893 mutex_lock(&sdata->local->sta_mtx); 4894 ret = sta_mod_link_station(local, sdata, params); 4895 mutex_unlock(&sdata->local->sta_mtx); 4896 4897 return ret; 4898 } 4899 4900 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4901 struct link_station_del_parameters *params) 4902 { 4903 struct sta_info *sta; 4904 4905 sta = sta_info_get_bss(sdata, params->mld_mac); 4906 if (!sta) 4907 return -ENOENT; 4908 4909 if (!(sta->sta.valid_links & BIT(params->link_id))) 4910 return -EINVAL; 4911 4912 /* must not create a STA without links */ 4913 if (sta->sta.valid_links == BIT(params->link_id)) 4914 return -EINVAL; 4915 4916 ieee80211_sta_remove_link(sta, params->link_id); 4917 4918 return 0; 4919 } 4920 4921 static int 4922 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4923 struct link_station_del_parameters *params) 4924 { 4925 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4926 int ret; 4927 4928 mutex_lock(&sdata->local->sta_mtx); 4929 ret = sta_del_link_station(sdata, params); 4930 mutex_unlock(&sdata->local->sta_mtx); 4931 4932 return ret; 4933 } 4934 4935 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4936 struct net_device *dev, 4937 struct cfg80211_set_hw_timestamp *hwts) 4938 { 4939 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4940 struct ieee80211_local *local = sdata->local; 4941 4942 if (!local->ops->set_hw_timestamp) 4943 return -EOPNOTSUPP; 4944 4945 if (!check_sdata_in_driver(sdata)) 4946 return -EIO; 4947 4948 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 4949 } 4950 4951 const struct cfg80211_ops mac80211_config_ops = { 4952 .add_virtual_intf = ieee80211_add_iface, 4953 .del_virtual_intf = ieee80211_del_iface, 4954 .change_virtual_intf = ieee80211_change_iface, 4955 .start_p2p_device = ieee80211_start_p2p_device, 4956 .stop_p2p_device = ieee80211_stop_p2p_device, 4957 .add_key = ieee80211_add_key, 4958 .del_key = ieee80211_del_key, 4959 .get_key = ieee80211_get_key, 4960 .set_default_key = ieee80211_config_default_key, 4961 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4962 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4963 .start_ap = ieee80211_start_ap, 4964 .change_beacon = ieee80211_change_beacon, 4965 .stop_ap = ieee80211_stop_ap, 4966 .add_station = ieee80211_add_station, 4967 .del_station = ieee80211_del_station, 4968 .change_station = ieee80211_change_station, 4969 .get_station = ieee80211_get_station, 4970 .dump_station = ieee80211_dump_station, 4971 .dump_survey = ieee80211_dump_survey, 4972 #ifdef CONFIG_MAC80211_MESH 4973 .add_mpath = ieee80211_add_mpath, 4974 .del_mpath = ieee80211_del_mpath, 4975 .change_mpath = ieee80211_change_mpath, 4976 .get_mpath = ieee80211_get_mpath, 4977 .dump_mpath = ieee80211_dump_mpath, 4978 .get_mpp = ieee80211_get_mpp, 4979 .dump_mpp = ieee80211_dump_mpp, 4980 .update_mesh_config = ieee80211_update_mesh_config, 4981 .get_mesh_config = ieee80211_get_mesh_config, 4982 .join_mesh = ieee80211_join_mesh, 4983 .leave_mesh = ieee80211_leave_mesh, 4984 #endif 4985 .join_ocb = ieee80211_join_ocb, 4986 .leave_ocb = ieee80211_leave_ocb, 4987 .change_bss = ieee80211_change_bss, 4988 .set_txq_params = ieee80211_set_txq_params, 4989 .set_monitor_channel = ieee80211_set_monitor_channel, 4990 .suspend = ieee80211_suspend, 4991 .resume = ieee80211_resume, 4992 .scan = ieee80211_scan, 4993 .abort_scan = ieee80211_abort_scan, 4994 .sched_scan_start = ieee80211_sched_scan_start, 4995 .sched_scan_stop = ieee80211_sched_scan_stop, 4996 .auth = ieee80211_auth, 4997 .assoc = ieee80211_assoc, 4998 .deauth = ieee80211_deauth, 4999 .disassoc = ieee80211_disassoc, 5000 .join_ibss = ieee80211_join_ibss, 5001 .leave_ibss = ieee80211_leave_ibss, 5002 .set_mcast_rate = ieee80211_set_mcast_rate, 5003 .set_wiphy_params = ieee80211_set_wiphy_params, 5004 .set_tx_power = ieee80211_set_tx_power, 5005 .get_tx_power = ieee80211_get_tx_power, 5006 .rfkill_poll = ieee80211_rfkill_poll, 5007 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5008 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5009 .set_power_mgmt = ieee80211_set_power_mgmt, 5010 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5011 .remain_on_channel = ieee80211_remain_on_channel, 5012 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5013 .mgmt_tx = ieee80211_mgmt_tx, 5014 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5015 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5016 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5017 .update_mgmt_frame_registrations = 5018 ieee80211_update_mgmt_frame_registrations, 5019 .set_antenna = ieee80211_set_antenna, 5020 .get_antenna = ieee80211_get_antenna, 5021 .set_rekey_data = ieee80211_set_rekey_data, 5022 .tdls_oper = ieee80211_tdls_oper, 5023 .tdls_mgmt = ieee80211_tdls_mgmt, 5024 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5025 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5026 .probe_client = ieee80211_probe_client, 5027 .set_noack_map = ieee80211_set_noack_map, 5028 #ifdef CONFIG_PM 5029 .set_wakeup = ieee80211_set_wakeup, 5030 #endif 5031 .get_channel = ieee80211_cfg_get_channel, 5032 .start_radar_detection = ieee80211_start_radar_detection, 5033 .end_cac = ieee80211_end_cac, 5034 .channel_switch = ieee80211_channel_switch, 5035 .set_qos_map = ieee80211_set_qos_map, 5036 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5037 .add_tx_ts = ieee80211_add_tx_ts, 5038 .del_tx_ts = ieee80211_del_tx_ts, 5039 .start_nan = ieee80211_start_nan, 5040 .stop_nan = ieee80211_stop_nan, 5041 .nan_change_conf = ieee80211_nan_change_conf, 5042 .add_nan_func = ieee80211_add_nan_func, 5043 .del_nan_func = ieee80211_del_nan_func, 5044 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5045 .tx_control_port = ieee80211_tx_control_port, 5046 .get_txq_stats = ieee80211_get_txq_stats, 5047 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5048 .start_pmsr = ieee80211_start_pmsr, 5049 .abort_pmsr = ieee80211_abort_pmsr, 5050 .probe_mesh_link = ieee80211_probe_mesh_link, 5051 .set_tid_config = ieee80211_set_tid_config, 5052 .reset_tid_config = ieee80211_reset_tid_config, 5053 .set_sar_specs = ieee80211_set_sar_specs, 5054 .color_change = ieee80211_color_change, 5055 .set_radar_background = ieee80211_set_radar_background, 5056 .add_intf_link = ieee80211_add_intf_link, 5057 .del_intf_link = ieee80211_del_intf_link, 5058 .add_link_station = ieee80211_add_link_station, 5059 .mod_link_station = ieee80211_mod_link_station, 5060 .del_link_station = ieee80211_del_link_station, 5061 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5062 }; 5063