1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && sdata->vif.valid_links) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 ret = ieee80211_if_change_type(sdata, type); 218 if (ret) 219 return ret; 220 221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 223 ieee80211_check_fast_rx_iface(sdata); 224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 226 227 if (params->use_4addr == ifmgd->use_4addr) 228 return 0; 229 230 /* FIXME: no support for 4-addr MLO yet */ 231 if (sdata->vif.valid_links) 232 return -EOPNOTSUPP; 233 234 sdata->u.mgd.use_4addr = params->use_4addr; 235 if (!ifmgd->associated) 236 return 0; 237 238 mutex_lock(&local->sta_mtx); 239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 240 if (sta) 241 drv_sta_set_4addr(local, sdata, &sta->sta, 242 params->use_4addr); 243 mutex_unlock(&local->sta_mtx); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 mutex_lock(&sdata->local->chanctx_mtx); 265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 266 mutex_unlock(&sdata->local->chanctx_mtx); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 mutex_lock(&sdata->local->chanctx_mtx); 287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 288 mutex_unlock(&sdata->local->chanctx_mtx); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 mutex_lock(&local->key_mtx); 456 key = key_mtx_dereference(local, sta->ptk[key_idx]); 457 458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 459 ret = ieee80211_set_tx_key(key); 460 461 mutex_unlock(&local->key_mtx); 462 return ret; 463 } 464 465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 466 int link_id, u8 key_idx, bool pairwise, 467 const u8 *mac_addr, struct key_params *params) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_link_data *link = 471 ieee80211_link_or_deflink(sdata, link_id, false); 472 struct ieee80211_local *local = sdata->local; 473 struct sta_info *sta = NULL; 474 struct ieee80211_key *key; 475 int err; 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 mutex_lock(&local->sta_mtx); 514 515 if (mac_addr) { 516 sta = sta_info_get_bss(sdata, mac_addr); 517 /* 518 * The ASSOC test makes sure the driver is ready to 519 * receive the key. When wpa_supplicant has roamed 520 * using FT, it attempts to set the key before 521 * association has completed, this rejects that attempt 522 * so it will set the key again after association. 523 * 524 * TODO: accept the key if we have a station entry and 525 * add it to the device after the station. 526 */ 527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 528 ieee80211_key_free_unused(key); 529 err = -ENOENT; 530 goto out_unlock; 531 } 532 } 533 534 switch (sdata->vif.type) { 535 case NL80211_IFTYPE_STATION: 536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 538 break; 539 case NL80211_IFTYPE_AP: 540 case NL80211_IFTYPE_AP_VLAN: 541 /* Keys without a station are used for TX only */ 542 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 544 break; 545 case NL80211_IFTYPE_ADHOC: 546 /* no MFP (yet) */ 547 break; 548 case NL80211_IFTYPE_MESH_POINT: 549 #ifdef CONFIG_MAC80211_MESH 550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 552 break; 553 #endif 554 case NL80211_IFTYPE_WDS: 555 case NL80211_IFTYPE_MONITOR: 556 case NL80211_IFTYPE_P2P_DEVICE: 557 case NL80211_IFTYPE_NAN: 558 case NL80211_IFTYPE_UNSPECIFIED: 559 case NUM_NL80211_IFTYPES: 560 case NL80211_IFTYPE_P2P_CLIENT: 561 case NL80211_IFTYPE_P2P_GO: 562 case NL80211_IFTYPE_OCB: 563 /* shouldn't happen */ 564 WARN_ON_ONCE(1); 565 break; 566 } 567 568 err = ieee80211_key_link(key, link, sta); 569 570 out_unlock: 571 mutex_unlock(&local->sta_mtx); 572 573 return err; 574 } 575 576 static struct ieee80211_key * 577 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 578 u8 key_idx, bool pairwise, const u8 *mac_addr) 579 { 580 struct ieee80211_local *local __maybe_unused = sdata->local; 581 struct ieee80211_link_data *link = &sdata->deflink; 582 struct ieee80211_key *key; 583 584 if (link_id >= 0) { 585 link = rcu_dereference_check(sdata->link[link_id], 586 lockdep_is_held(&sdata->wdev.mtx)); 587 if (!link) 588 return NULL; 589 } 590 591 if (mac_addr) { 592 struct sta_info *sta; 593 struct link_sta_info *link_sta; 594 595 sta = sta_info_get_bss(sdata, mac_addr); 596 if (!sta) 597 return NULL; 598 599 if (link_id >= 0) { 600 link_sta = rcu_dereference_check(sta->link[link_id], 601 lockdep_is_held(&local->sta_mtx)); 602 if (!link_sta) 603 return NULL; 604 } else { 605 link_sta = &sta->deflink; 606 } 607 608 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 609 return rcu_dereference_check_key_mtx(local, 610 sta->ptk[key_idx]); 611 612 if (!pairwise && 613 key_idx < NUM_DEFAULT_KEYS + 614 NUM_DEFAULT_MGMT_KEYS + 615 NUM_DEFAULT_BEACON_KEYS) 616 return rcu_dereference_check_key_mtx(local, 617 link_sta->gtk[key_idx]); 618 619 return NULL; 620 } 621 622 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 623 return rcu_dereference_check_key_mtx(local, 624 sdata->keys[key_idx]); 625 626 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 627 if (key) 628 return key; 629 630 /* or maybe it was a WEP key */ 631 if (key_idx < NUM_DEFAULT_KEYS) 632 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 633 634 return NULL; 635 } 636 637 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 638 int link_id, u8 key_idx, bool pairwise, 639 const u8 *mac_addr) 640 { 641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 642 struct ieee80211_local *local = sdata->local; 643 struct ieee80211_key *key; 644 int ret; 645 646 mutex_lock(&local->sta_mtx); 647 mutex_lock(&local->key_mtx); 648 649 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 650 if (!key) { 651 ret = -ENOENT; 652 goto out_unlock; 653 } 654 655 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 656 657 ret = 0; 658 out_unlock: 659 mutex_unlock(&local->key_mtx); 660 mutex_unlock(&local->sta_mtx); 661 662 return ret; 663 } 664 665 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 666 int link_id, u8 key_idx, bool pairwise, 667 const u8 *mac_addr, void *cookie, 668 void (*callback)(void *cookie, 669 struct key_params *params)) 670 { 671 struct ieee80211_sub_if_data *sdata; 672 u8 seq[6] = {0}; 673 struct key_params params; 674 struct ieee80211_key *key; 675 u64 pn64; 676 u32 iv32; 677 u16 iv16; 678 int err = -ENOENT; 679 struct ieee80211_key_seq kseq = {}; 680 681 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 682 683 rcu_read_lock(); 684 685 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 686 if (!key) 687 goto out; 688 689 memset(¶ms, 0, sizeof(params)); 690 691 params.cipher = key->conf.cipher; 692 693 switch (key->conf.cipher) { 694 case WLAN_CIPHER_SUITE_TKIP: 695 pn64 = atomic64_read(&key->conf.tx_pn); 696 iv32 = TKIP_PN_TO_IV32(pn64); 697 iv16 = TKIP_PN_TO_IV16(pn64); 698 699 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 700 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 701 drv_get_key_seq(sdata->local, key, &kseq); 702 iv32 = kseq.tkip.iv32; 703 iv16 = kseq.tkip.iv16; 704 } 705 706 seq[0] = iv16 & 0xff; 707 seq[1] = (iv16 >> 8) & 0xff; 708 seq[2] = iv32 & 0xff; 709 seq[3] = (iv32 >> 8) & 0xff; 710 seq[4] = (iv32 >> 16) & 0xff; 711 seq[5] = (iv32 >> 24) & 0xff; 712 params.seq = seq; 713 params.seq_len = 6; 714 break; 715 case WLAN_CIPHER_SUITE_CCMP: 716 case WLAN_CIPHER_SUITE_CCMP_256: 717 case WLAN_CIPHER_SUITE_AES_CMAC: 718 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 719 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 720 offsetof(typeof(kseq), aes_cmac)); 721 fallthrough; 722 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 723 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 724 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 725 offsetof(typeof(kseq), aes_gmac)); 726 fallthrough; 727 case WLAN_CIPHER_SUITE_GCMP: 728 case WLAN_CIPHER_SUITE_GCMP_256: 729 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 730 offsetof(typeof(kseq), gcmp)); 731 732 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 733 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 734 drv_get_key_seq(sdata->local, key, &kseq); 735 memcpy(seq, kseq.ccmp.pn, 6); 736 } else { 737 pn64 = atomic64_read(&key->conf.tx_pn); 738 seq[0] = pn64; 739 seq[1] = pn64 >> 8; 740 seq[2] = pn64 >> 16; 741 seq[3] = pn64 >> 24; 742 seq[4] = pn64 >> 32; 743 seq[5] = pn64 >> 40; 744 } 745 params.seq = seq; 746 params.seq_len = 6; 747 break; 748 default: 749 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 750 break; 751 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 752 break; 753 drv_get_key_seq(sdata->local, key, &kseq); 754 params.seq = kseq.hw.seq; 755 params.seq_len = kseq.hw.seq_len; 756 break; 757 } 758 759 params.key = key->conf.key; 760 params.key_len = key->conf.keylen; 761 762 callback(cookie, ¶ms); 763 err = 0; 764 765 out: 766 rcu_read_unlock(); 767 return err; 768 } 769 770 static int ieee80211_config_default_key(struct wiphy *wiphy, 771 struct net_device *dev, 772 int link_id, u8 key_idx, bool uni, 773 bool multi) 774 { 775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 776 struct ieee80211_link_data *link = 777 ieee80211_link_or_deflink(sdata, link_id, false); 778 779 if (IS_ERR(link)) 780 return PTR_ERR(link); 781 782 ieee80211_set_default_key(link, key_idx, uni, multi); 783 784 return 0; 785 } 786 787 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 788 struct net_device *dev, 789 int link_id, u8 key_idx) 790 { 791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 792 struct ieee80211_link_data *link = 793 ieee80211_link_or_deflink(sdata, link_id, true); 794 795 if (IS_ERR(link)) 796 return PTR_ERR(link); 797 798 ieee80211_set_default_mgmt_key(link, key_idx); 799 800 return 0; 801 } 802 803 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 804 struct net_device *dev, 805 int link_id, u8 key_idx) 806 { 807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 808 struct ieee80211_link_data *link = 809 ieee80211_link_or_deflink(sdata, link_id, true); 810 811 if (IS_ERR(link)) 812 return PTR_ERR(link); 813 814 ieee80211_set_default_beacon_key(link, key_idx); 815 816 return 0; 817 } 818 819 void sta_set_rate_info_tx(struct sta_info *sta, 820 const struct ieee80211_tx_rate *rate, 821 struct rate_info *rinfo) 822 { 823 rinfo->flags = 0; 824 if (rate->flags & IEEE80211_TX_RC_MCS) { 825 rinfo->flags |= RATE_INFO_FLAGS_MCS; 826 rinfo->mcs = rate->idx; 827 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 829 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 830 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 831 } else { 832 struct ieee80211_supported_band *sband; 833 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 834 u16 brate; 835 836 sband = ieee80211_get_sband(sta->sdata); 837 WARN_ON_ONCE(sband && !sband->bitrates); 838 if (sband && sband->bitrates) { 839 brate = sband->bitrates[rate->idx].bitrate; 840 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 841 } 842 } 843 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 844 rinfo->bw = RATE_INFO_BW_40; 845 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 846 rinfo->bw = RATE_INFO_BW_80; 847 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 848 rinfo->bw = RATE_INFO_BW_160; 849 else 850 rinfo->bw = RATE_INFO_BW_20; 851 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 852 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 853 } 854 855 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 856 int idx, u8 *mac, struct station_info *sinfo) 857 { 858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 859 struct ieee80211_local *local = sdata->local; 860 struct sta_info *sta; 861 int ret = -ENOENT; 862 863 mutex_lock(&local->sta_mtx); 864 865 sta = sta_info_get_by_idx(sdata, idx); 866 if (sta) { 867 ret = 0; 868 memcpy(mac, sta->sta.addr, ETH_ALEN); 869 sta_set_sinfo(sta, sinfo, true); 870 } 871 872 mutex_unlock(&local->sta_mtx); 873 874 return ret; 875 } 876 877 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 878 int idx, struct survey_info *survey) 879 { 880 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 881 882 return drv_get_survey(local, idx, survey); 883 } 884 885 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 886 const u8 *mac, struct station_info *sinfo) 887 { 888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 889 struct ieee80211_local *local = sdata->local; 890 struct sta_info *sta; 891 int ret = -ENOENT; 892 893 mutex_lock(&local->sta_mtx); 894 895 sta = sta_info_get_bss(sdata, mac); 896 if (sta) { 897 ret = 0; 898 sta_set_sinfo(sta, sinfo, true); 899 } 900 901 mutex_unlock(&local->sta_mtx); 902 903 return ret; 904 } 905 906 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 907 struct cfg80211_chan_def *chandef) 908 { 909 struct ieee80211_local *local = wiphy_priv(wiphy); 910 struct ieee80211_sub_if_data *sdata; 911 int ret = 0; 912 913 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 914 return 0; 915 916 mutex_lock(&local->mtx); 917 if (local->use_chanctx) { 918 sdata = wiphy_dereference(local->hw.wiphy, 919 local->monitor_sdata); 920 if (sdata) { 921 ieee80211_link_release_channel(&sdata->deflink); 922 ret = ieee80211_link_use_channel(&sdata->deflink, 923 chandef, 924 IEEE80211_CHANCTX_EXCLUSIVE); 925 } 926 } else if (local->open_count == local->monitors) { 927 local->_oper_chandef = *chandef; 928 ieee80211_hw_config(local, 0); 929 } 930 931 if (ret == 0) 932 local->monitor_chandef = *chandef; 933 mutex_unlock(&local->mtx); 934 935 return ret; 936 } 937 938 static int 939 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 940 const u8 *resp, size_t resp_len, 941 const struct ieee80211_csa_settings *csa, 942 const struct ieee80211_color_change_settings *cca, 943 struct ieee80211_link_data *link) 944 { 945 struct probe_resp *new, *old; 946 947 if (!resp || !resp_len) 948 return 1; 949 950 old = sdata_dereference(link->u.ap.probe_resp, sdata); 951 952 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 953 if (!new) 954 return -ENOMEM; 955 956 new->len = resp_len; 957 memcpy(new->data, resp, resp_len); 958 959 if (csa) 960 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 961 csa->n_counter_offsets_presp * 962 sizeof(new->cntdwn_counter_offsets[0])); 963 else if (cca) 964 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 965 966 rcu_assign_pointer(link->u.ap.probe_resp, new); 967 if (old) 968 kfree_rcu(old, rcu_head); 969 970 return 0; 971 } 972 973 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 974 struct cfg80211_fils_discovery *params, 975 struct ieee80211_link_data *link, 976 struct ieee80211_bss_conf *link_conf) 977 { 978 struct fils_discovery_data *new, *old = NULL; 979 struct ieee80211_fils_discovery *fd; 980 981 if (!params->tmpl || !params->tmpl_len) 982 return -EINVAL; 983 984 fd = &link_conf->fils_discovery; 985 fd->min_interval = params->min_interval; 986 fd->max_interval = params->max_interval; 987 988 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 989 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 990 if (!new) 991 return -ENOMEM; 992 new->len = params->tmpl_len; 993 memcpy(new->data, params->tmpl, params->tmpl_len); 994 rcu_assign_pointer(link->u.ap.fils_discovery, new); 995 996 if (old) 997 kfree_rcu(old, rcu_head); 998 999 return 0; 1000 } 1001 1002 static int 1003 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1004 struct cfg80211_unsol_bcast_probe_resp *params, 1005 struct ieee80211_link_data *link, 1006 struct ieee80211_bss_conf *link_conf) 1007 { 1008 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1009 1010 if (!params->tmpl || !params->tmpl_len) 1011 return -EINVAL; 1012 1013 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1014 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1015 if (!new) 1016 return -ENOMEM; 1017 new->len = params->tmpl_len; 1018 memcpy(new->data, params->tmpl, params->tmpl_len); 1019 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1020 1021 if (old) 1022 kfree_rcu(old, rcu_head); 1023 1024 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1025 1026 return 0; 1027 } 1028 1029 static int ieee80211_set_ftm_responder_params( 1030 struct ieee80211_sub_if_data *sdata, 1031 const u8 *lci, size_t lci_len, 1032 const u8 *civicloc, size_t civicloc_len, 1033 struct ieee80211_bss_conf *link_conf) 1034 { 1035 struct ieee80211_ftm_responder_params *new, *old; 1036 u8 *pos; 1037 int len; 1038 1039 if (!lci_len && !civicloc_len) 1040 return 0; 1041 1042 old = link_conf->ftmr_params; 1043 len = lci_len + civicloc_len; 1044 1045 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1046 if (!new) 1047 return -ENOMEM; 1048 1049 pos = (u8 *)(new + 1); 1050 if (lci_len) { 1051 new->lci_len = lci_len; 1052 new->lci = pos; 1053 memcpy(pos, lci, lci_len); 1054 pos += lci_len; 1055 } 1056 1057 if (civicloc_len) { 1058 new->civicloc_len = civicloc_len; 1059 new->civicloc = pos; 1060 memcpy(pos, civicloc, civicloc_len); 1061 pos += civicloc_len; 1062 } 1063 1064 link_conf->ftmr_params = new; 1065 kfree(old); 1066 1067 return 0; 1068 } 1069 1070 static int 1071 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1072 struct cfg80211_mbssid_elems *src) 1073 { 1074 int i, offset = 0; 1075 1076 for (i = 0; i < src->cnt; i++) { 1077 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1078 dst->elem[i].len = src->elem[i].len; 1079 dst->elem[i].data = pos + offset; 1080 offset += dst->elem[i].len; 1081 } 1082 dst->cnt = src->cnt; 1083 1084 return offset; 1085 } 1086 1087 static int 1088 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1089 struct cfg80211_rnr_elems *src) 1090 { 1091 int i, offset = 0; 1092 1093 for (i = 0; i < src->cnt; i++) { 1094 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1095 dst->elem[i].len = src->elem[i].len; 1096 dst->elem[i].data = pos + offset; 1097 offset += dst->elem[i].len; 1098 } 1099 dst->cnt = src->cnt; 1100 1101 return offset; 1102 } 1103 1104 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1105 struct ieee80211_link_data *link, 1106 struct cfg80211_beacon_data *params, 1107 const struct ieee80211_csa_settings *csa, 1108 const struct ieee80211_color_change_settings *cca) 1109 { 1110 struct cfg80211_mbssid_elems *mbssid = NULL; 1111 struct cfg80211_rnr_elems *rnr = NULL; 1112 struct beacon_data *new, *old; 1113 int new_head_len, new_tail_len; 1114 int size, err; 1115 u32 changed = BSS_CHANGED_BEACON; 1116 struct ieee80211_bss_conf *link_conf = link->conf; 1117 1118 old = sdata_dereference(link->u.ap.beacon, sdata); 1119 1120 /* Need to have a beacon head if we don't have one yet */ 1121 if (!params->head && !old) 1122 return -EINVAL; 1123 1124 /* new or old head? */ 1125 if (params->head) 1126 new_head_len = params->head_len; 1127 else 1128 new_head_len = old->head_len; 1129 1130 /* new or old tail? */ 1131 if (params->tail || !old) 1132 /* params->tail_len will be zero for !params->tail */ 1133 new_tail_len = params->tail_len; 1134 else 1135 new_tail_len = old->tail_len; 1136 1137 size = sizeof(*new) + new_head_len + new_tail_len; 1138 1139 /* new or old multiple BSSID elements? */ 1140 if (params->mbssid_ies) { 1141 mbssid = params->mbssid_ies; 1142 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1143 if (params->rnr_ies) { 1144 rnr = params->rnr_ies; 1145 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1146 } 1147 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1148 mbssid->cnt); 1149 } else if (old && old->mbssid_ies) { 1150 mbssid = old->mbssid_ies; 1151 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1152 if (old && old->rnr_ies) { 1153 rnr = old->rnr_ies; 1154 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1155 } 1156 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1157 mbssid->cnt); 1158 } 1159 1160 new = kzalloc(size, GFP_KERNEL); 1161 if (!new) 1162 return -ENOMEM; 1163 1164 /* start filling the new info now */ 1165 1166 /* 1167 * pointers go into the block we allocated, 1168 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1169 */ 1170 new->head = ((u8 *) new) + sizeof(*new); 1171 new->tail = new->head + new_head_len; 1172 new->head_len = new_head_len; 1173 new->tail_len = new_tail_len; 1174 /* copy in optional mbssid_ies */ 1175 if (mbssid) { 1176 u8 *pos = new->tail + new->tail_len; 1177 1178 new->mbssid_ies = (void *)pos; 1179 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1180 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1181 mbssid); 1182 if (rnr) { 1183 new->rnr_ies = (void *)pos; 1184 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1185 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1186 } 1187 /* update bssid_indicator */ 1188 link_conf->bssid_indicator = 1189 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1190 } 1191 1192 if (csa) { 1193 new->cntdwn_current_counter = csa->count; 1194 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1195 csa->n_counter_offsets_beacon * 1196 sizeof(new->cntdwn_counter_offsets[0])); 1197 } else if (cca) { 1198 new->cntdwn_current_counter = cca->count; 1199 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1200 } 1201 1202 /* copy in head */ 1203 if (params->head) 1204 memcpy(new->head, params->head, new_head_len); 1205 else 1206 memcpy(new->head, old->head, new_head_len); 1207 1208 /* copy in optional tail */ 1209 if (params->tail) 1210 memcpy(new->tail, params->tail, new_tail_len); 1211 else 1212 if (old) 1213 memcpy(new->tail, old->tail, new_tail_len); 1214 1215 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1216 params->probe_resp_len, csa, cca, link); 1217 if (err < 0) { 1218 kfree(new); 1219 return err; 1220 } 1221 if (err == 0) 1222 changed |= BSS_CHANGED_AP_PROBE_RESP; 1223 1224 if (params->ftm_responder != -1) { 1225 link_conf->ftm_responder = params->ftm_responder; 1226 err = ieee80211_set_ftm_responder_params(sdata, 1227 params->lci, 1228 params->lci_len, 1229 params->civicloc, 1230 params->civicloc_len, 1231 link_conf); 1232 1233 if (err < 0) { 1234 kfree(new); 1235 return err; 1236 } 1237 1238 changed |= BSS_CHANGED_FTM_RESPONDER; 1239 } 1240 1241 rcu_assign_pointer(link->u.ap.beacon, new); 1242 sdata->u.ap.active = true; 1243 1244 if (old) 1245 kfree_rcu(old, rcu_head); 1246 1247 return changed; 1248 } 1249 1250 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1251 struct cfg80211_ap_settings *params) 1252 { 1253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1254 struct ieee80211_local *local = sdata->local; 1255 struct beacon_data *old; 1256 struct ieee80211_sub_if_data *vlan; 1257 u64 changed = BSS_CHANGED_BEACON_INT | 1258 BSS_CHANGED_BEACON_ENABLED | 1259 BSS_CHANGED_BEACON | 1260 BSS_CHANGED_P2P_PS | 1261 BSS_CHANGED_TXPOWER | 1262 BSS_CHANGED_TWT; 1263 int i, err; 1264 int prev_beacon_int; 1265 unsigned int link_id = params->beacon.link_id; 1266 struct ieee80211_link_data *link; 1267 struct ieee80211_bss_conf *link_conf; 1268 1269 link = sdata_dereference(sdata->link[link_id], sdata); 1270 if (!link) 1271 return -ENOLINK; 1272 1273 link_conf = link->conf; 1274 1275 old = sdata_dereference(link->u.ap.beacon, sdata); 1276 if (old) 1277 return -EALREADY; 1278 1279 if (params->smps_mode != NL80211_SMPS_OFF) 1280 return -ENOTSUPP; 1281 1282 link->smps_mode = IEEE80211_SMPS_OFF; 1283 1284 link->needed_rx_chains = sdata->local->rx_chains; 1285 1286 prev_beacon_int = link_conf->beacon_int; 1287 link_conf->beacon_int = params->beacon_interval; 1288 1289 if (params->ht_cap) 1290 link_conf->ht_ldpc = 1291 params->ht_cap->cap_info & 1292 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1293 1294 if (params->vht_cap) { 1295 link_conf->vht_ldpc = 1296 params->vht_cap->vht_cap_info & 1297 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1298 link_conf->vht_su_beamformer = 1299 params->vht_cap->vht_cap_info & 1300 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1301 link_conf->vht_su_beamformee = 1302 params->vht_cap->vht_cap_info & 1303 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1304 link_conf->vht_mu_beamformer = 1305 params->vht_cap->vht_cap_info & 1306 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1307 link_conf->vht_mu_beamformee = 1308 params->vht_cap->vht_cap_info & 1309 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1310 } 1311 1312 if (params->he_cap && params->he_oper) { 1313 link_conf->he_support = true; 1314 link_conf->htc_trig_based_pkt_ext = 1315 le32_get_bits(params->he_oper->he_oper_params, 1316 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1317 link_conf->frame_time_rts_th = 1318 le32_get_bits(params->he_oper->he_oper_params, 1319 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1320 changed |= BSS_CHANGED_HE_OBSS_PD; 1321 1322 if (params->beacon.he_bss_color.enabled) 1323 changed |= BSS_CHANGED_HE_BSS_COLOR; 1324 } 1325 1326 if (params->he_cap) { 1327 link_conf->he_ldpc = 1328 params->he_cap->phy_cap_info[1] & 1329 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1330 link_conf->he_su_beamformer = 1331 params->he_cap->phy_cap_info[3] & 1332 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1333 link_conf->he_su_beamformee = 1334 params->he_cap->phy_cap_info[4] & 1335 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1336 link_conf->he_mu_beamformer = 1337 params->he_cap->phy_cap_info[4] & 1338 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1339 link_conf->he_full_ul_mumimo = 1340 params->he_cap->phy_cap_info[2] & 1341 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1342 } 1343 1344 if (params->eht_cap) { 1345 if (!link_conf->he_support) 1346 return -EOPNOTSUPP; 1347 1348 link_conf->eht_support = true; 1349 link_conf->eht_puncturing = params->punct_bitmap; 1350 changed |= BSS_CHANGED_EHT_PUNCTURING; 1351 1352 link_conf->eht_su_beamformer = 1353 params->eht_cap->fixed.phy_cap_info[0] & 1354 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1355 link_conf->eht_su_beamformee = 1356 params->eht_cap->fixed.phy_cap_info[0] & 1357 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1358 link_conf->eht_mu_beamformer = 1359 params->eht_cap->fixed.phy_cap_info[7] & 1360 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1361 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1362 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1363 } else { 1364 link_conf->eht_su_beamformer = false; 1365 link_conf->eht_su_beamformee = false; 1366 link_conf->eht_mu_beamformer = false; 1367 } 1368 1369 if (sdata->vif.type == NL80211_IFTYPE_AP && 1370 params->mbssid_config.tx_wdev) { 1371 err = ieee80211_set_ap_mbssid_options(sdata, 1372 params->mbssid_config, 1373 link_conf); 1374 if (err) 1375 return err; 1376 } 1377 1378 mutex_lock(&local->mtx); 1379 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1380 IEEE80211_CHANCTX_SHARED); 1381 if (!err) 1382 ieee80211_link_copy_chanctx_to_vlans(link, false); 1383 mutex_unlock(&local->mtx); 1384 if (err) { 1385 link_conf->beacon_int = prev_beacon_int; 1386 return err; 1387 } 1388 1389 /* 1390 * Apply control port protocol, this allows us to 1391 * not encrypt dynamic WEP control frames. 1392 */ 1393 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1394 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1395 sdata->control_port_over_nl80211 = 1396 params->crypto.control_port_over_nl80211; 1397 sdata->control_port_no_preauth = 1398 params->crypto.control_port_no_preauth; 1399 1400 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1401 vlan->control_port_protocol = 1402 params->crypto.control_port_ethertype; 1403 vlan->control_port_no_encrypt = 1404 params->crypto.control_port_no_encrypt; 1405 vlan->control_port_over_nl80211 = 1406 params->crypto.control_port_over_nl80211; 1407 vlan->control_port_no_preauth = 1408 params->crypto.control_port_no_preauth; 1409 } 1410 1411 link_conf->dtim_period = params->dtim_period; 1412 link_conf->enable_beacon = true; 1413 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1414 link_conf->twt_responder = params->twt_responder; 1415 link_conf->he_obss_pd = params->he_obss_pd; 1416 link_conf->he_bss_color = params->beacon.he_bss_color; 1417 sdata->vif.cfg.s1g = params->chandef.chan->band == 1418 NL80211_BAND_S1GHZ; 1419 1420 sdata->vif.cfg.ssid_len = params->ssid_len; 1421 if (params->ssid_len) 1422 memcpy(sdata->vif.cfg.ssid, params->ssid, 1423 params->ssid_len); 1424 link_conf->hidden_ssid = 1425 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1426 1427 memset(&link_conf->p2p_noa_attr, 0, 1428 sizeof(link_conf->p2p_noa_attr)); 1429 link_conf->p2p_noa_attr.oppps_ctwindow = 1430 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1431 if (params->p2p_opp_ps) 1432 link_conf->p2p_noa_attr.oppps_ctwindow |= 1433 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1434 1435 sdata->beacon_rate_set = false; 1436 if (wiphy_ext_feature_isset(local->hw.wiphy, 1437 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1438 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1439 sdata->beacon_rateidx_mask[i] = 1440 params->beacon_rate.control[i].legacy; 1441 if (sdata->beacon_rateidx_mask[i]) 1442 sdata->beacon_rate_set = true; 1443 } 1444 } 1445 1446 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1447 link_conf->beacon_tx_rate = params->beacon_rate; 1448 1449 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); 1450 if (err < 0) 1451 goto error; 1452 changed |= err; 1453 1454 if (params->fils_discovery.max_interval) { 1455 err = ieee80211_set_fils_discovery(sdata, 1456 ¶ms->fils_discovery, 1457 link, link_conf); 1458 if (err < 0) 1459 goto error; 1460 changed |= BSS_CHANGED_FILS_DISCOVERY; 1461 } 1462 1463 if (params->unsol_bcast_probe_resp.interval) { 1464 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1465 ¶ms->unsol_bcast_probe_resp, 1466 link, link_conf); 1467 if (err < 0) 1468 goto error; 1469 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1470 } 1471 1472 err = drv_start_ap(sdata->local, sdata, link_conf); 1473 if (err) { 1474 old = sdata_dereference(link->u.ap.beacon, sdata); 1475 1476 if (old) 1477 kfree_rcu(old, rcu_head); 1478 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1479 sdata->u.ap.active = false; 1480 goto error; 1481 } 1482 1483 ieee80211_recalc_dtim(local, sdata); 1484 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1485 ieee80211_link_info_change_notify(sdata, link, changed); 1486 1487 netif_carrier_on(dev); 1488 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1489 netif_carrier_on(vlan->dev); 1490 1491 return 0; 1492 1493 error: 1494 mutex_lock(&local->mtx); 1495 ieee80211_link_release_channel(link); 1496 mutex_unlock(&local->mtx); 1497 1498 return err; 1499 } 1500 1501 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1502 struct cfg80211_beacon_data *params) 1503 { 1504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1505 struct ieee80211_link_data *link; 1506 struct beacon_data *old; 1507 int err; 1508 struct ieee80211_bss_conf *link_conf; 1509 1510 sdata_assert_lock(sdata); 1511 1512 link = sdata_dereference(sdata->link[params->link_id], sdata); 1513 if (!link) 1514 return -ENOLINK; 1515 1516 link_conf = link->conf; 1517 1518 /* don't allow changing the beacon while a countdown is in place - offset 1519 * of channel switch counter may change 1520 */ 1521 if (link_conf->csa_active || link_conf->color_change_active) 1522 return -EBUSY; 1523 1524 old = sdata_dereference(link->u.ap.beacon, sdata); 1525 if (!old) 1526 return -ENOENT; 1527 1528 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); 1529 if (err < 0) 1530 return err; 1531 1532 if (params->he_bss_color_valid && 1533 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1534 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1535 err |= BSS_CHANGED_HE_BSS_COLOR; 1536 } 1537 1538 ieee80211_link_info_change_notify(sdata, link, err); 1539 return 0; 1540 } 1541 1542 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1543 { 1544 if (!link->u.ap.next_beacon) 1545 return; 1546 1547 kfree(link->u.ap.next_beacon->mbssid_ies); 1548 kfree(link->u.ap.next_beacon->rnr_ies); 1549 kfree(link->u.ap.next_beacon); 1550 link->u.ap.next_beacon = NULL; 1551 } 1552 1553 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1554 unsigned int link_id) 1555 { 1556 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1557 struct ieee80211_sub_if_data *vlan; 1558 struct ieee80211_local *local = sdata->local; 1559 struct beacon_data *old_beacon; 1560 struct probe_resp *old_probe_resp; 1561 struct fils_discovery_data *old_fils_discovery; 1562 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1563 struct cfg80211_chan_def chandef; 1564 struct ieee80211_link_data *link = 1565 sdata_dereference(sdata->link[link_id], sdata); 1566 struct ieee80211_bss_conf *link_conf = link->conf; 1567 1568 sdata_assert_lock(sdata); 1569 1570 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1571 if (!old_beacon) 1572 return -ENOENT; 1573 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1574 sdata); 1575 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1576 sdata); 1577 old_unsol_bcast_probe_resp = 1578 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1579 sdata); 1580 1581 /* abort any running channel switch or color change */ 1582 mutex_lock(&local->mtx); 1583 link_conf->csa_active = false; 1584 link_conf->color_change_active = false; 1585 if (link->csa_block_tx) { 1586 ieee80211_wake_vif_queues(local, sdata, 1587 IEEE80211_QUEUE_STOP_REASON_CSA); 1588 link->csa_block_tx = false; 1589 } 1590 1591 mutex_unlock(&local->mtx); 1592 1593 ieee80211_free_next_beacon(link); 1594 1595 /* turn off carrier for this interface and dependent VLANs */ 1596 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1597 netif_carrier_off(vlan->dev); 1598 netif_carrier_off(dev); 1599 1600 /* remove beacon and probe response */ 1601 sdata->u.ap.active = false; 1602 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1603 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1604 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1605 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1606 kfree_rcu(old_beacon, rcu_head); 1607 if (old_probe_resp) 1608 kfree_rcu(old_probe_resp, rcu_head); 1609 if (old_fils_discovery) 1610 kfree_rcu(old_fils_discovery, rcu_head); 1611 if (old_unsol_bcast_probe_resp) 1612 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1613 1614 kfree(link_conf->ftmr_params); 1615 link_conf->ftmr_params = NULL; 1616 1617 sdata->vif.mbssid_tx_vif = NULL; 1618 link_conf->bssid_index = 0; 1619 link_conf->nontransmitted = false; 1620 link_conf->ema_ap = false; 1621 link_conf->bssid_indicator = 0; 1622 1623 __sta_info_flush(sdata, true); 1624 ieee80211_free_keys(sdata, true); 1625 1626 link_conf->enable_beacon = false; 1627 sdata->beacon_rate_set = false; 1628 sdata->vif.cfg.ssid_len = 0; 1629 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1630 ieee80211_link_info_change_notify(sdata, link, 1631 BSS_CHANGED_BEACON_ENABLED); 1632 1633 if (sdata->wdev.cac_started) { 1634 chandef = link_conf->chandef; 1635 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1636 cfg80211_cac_event(sdata->dev, &chandef, 1637 NL80211_RADAR_CAC_ABORTED, 1638 GFP_KERNEL); 1639 } 1640 1641 drv_stop_ap(sdata->local, sdata, link_conf); 1642 1643 /* free all potentially still buffered bcast frames */ 1644 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1645 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1646 1647 mutex_lock(&local->mtx); 1648 ieee80211_link_copy_chanctx_to_vlans(link, true); 1649 ieee80211_link_release_channel(link); 1650 mutex_unlock(&local->mtx); 1651 1652 return 0; 1653 } 1654 1655 static int sta_apply_auth_flags(struct ieee80211_local *local, 1656 struct sta_info *sta, 1657 u32 mask, u32 set) 1658 { 1659 int ret; 1660 1661 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1662 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1663 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1664 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1665 if (ret) 1666 return ret; 1667 } 1668 1669 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1670 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1671 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1672 /* 1673 * When peer becomes associated, init rate control as 1674 * well. Some drivers require rate control initialized 1675 * before drv_sta_state() is called. 1676 */ 1677 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1678 rate_control_rate_init(sta); 1679 1680 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1681 if (ret) 1682 return ret; 1683 } 1684 1685 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1686 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1687 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1688 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1689 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1690 else 1691 ret = 0; 1692 if (ret) 1693 return ret; 1694 } 1695 1696 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1697 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1698 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1699 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1700 if (ret) 1701 return ret; 1702 } 1703 1704 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1705 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1706 test_sta_flag(sta, WLAN_STA_AUTH)) { 1707 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1708 if (ret) 1709 return ret; 1710 } 1711 1712 return 0; 1713 } 1714 1715 static void sta_apply_mesh_params(struct ieee80211_local *local, 1716 struct sta_info *sta, 1717 struct station_parameters *params) 1718 { 1719 #ifdef CONFIG_MAC80211_MESH 1720 struct ieee80211_sub_if_data *sdata = sta->sdata; 1721 u32 changed = 0; 1722 1723 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1724 switch (params->plink_state) { 1725 case NL80211_PLINK_ESTAB: 1726 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1727 changed = mesh_plink_inc_estab_count(sdata); 1728 sta->mesh->plink_state = params->plink_state; 1729 sta->mesh->aid = params->peer_aid; 1730 1731 ieee80211_mps_sta_status_update(sta); 1732 changed |= ieee80211_mps_set_sta_local_pm(sta, 1733 sdata->u.mesh.mshcfg.power_mode); 1734 1735 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1736 /* init at low value */ 1737 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1738 1739 break; 1740 case NL80211_PLINK_LISTEN: 1741 case NL80211_PLINK_BLOCKED: 1742 case NL80211_PLINK_OPN_SNT: 1743 case NL80211_PLINK_OPN_RCVD: 1744 case NL80211_PLINK_CNF_RCVD: 1745 case NL80211_PLINK_HOLDING: 1746 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1747 changed = mesh_plink_dec_estab_count(sdata); 1748 sta->mesh->plink_state = params->plink_state; 1749 1750 ieee80211_mps_sta_status_update(sta); 1751 changed |= ieee80211_mps_set_sta_local_pm(sta, 1752 NL80211_MESH_POWER_UNKNOWN); 1753 break; 1754 default: 1755 /* nothing */ 1756 break; 1757 } 1758 } 1759 1760 switch (params->plink_action) { 1761 case NL80211_PLINK_ACTION_NO_ACTION: 1762 /* nothing */ 1763 break; 1764 case NL80211_PLINK_ACTION_OPEN: 1765 changed |= mesh_plink_open(sta); 1766 break; 1767 case NL80211_PLINK_ACTION_BLOCK: 1768 changed |= mesh_plink_block(sta); 1769 break; 1770 } 1771 1772 if (params->local_pm) 1773 changed |= ieee80211_mps_set_sta_local_pm(sta, 1774 params->local_pm); 1775 1776 ieee80211_mbss_info_change_notify(sdata, changed); 1777 #endif 1778 } 1779 1780 static int sta_link_apply_parameters(struct ieee80211_local *local, 1781 struct sta_info *sta, bool new_link, 1782 struct link_station_parameters *params) 1783 { 1784 int ret = 0; 1785 struct ieee80211_supported_band *sband; 1786 struct ieee80211_sub_if_data *sdata = sta->sdata; 1787 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1788 struct ieee80211_link_data *link = 1789 sdata_dereference(sdata->link[link_id], sdata); 1790 struct link_sta_info *link_sta = 1791 rcu_dereference_protected(sta->link[link_id], 1792 lockdep_is_held(&local->sta_mtx)); 1793 1794 /* 1795 * If there are no changes, then accept a link that doesn't exist, 1796 * unless it's a new link. 1797 */ 1798 if (params->link_id < 0 && !new_link && 1799 !params->link_mac && !params->txpwr_set && 1800 !params->supported_rates_len && 1801 !params->ht_capa && !params->vht_capa && 1802 !params->he_capa && !params->eht_capa && 1803 !params->opmode_notif_used) 1804 return 0; 1805 1806 if (!link || !link_sta) 1807 return -EINVAL; 1808 1809 sband = ieee80211_get_link_sband(link); 1810 if (!sband) 1811 return -EINVAL; 1812 1813 if (params->link_mac) { 1814 if (new_link) { 1815 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1816 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1817 } else if (!ether_addr_equal(link_sta->addr, 1818 params->link_mac)) { 1819 return -EINVAL; 1820 } 1821 } else if (new_link) { 1822 return -EINVAL; 1823 } 1824 1825 if (params->txpwr_set) { 1826 link_sta->pub->txpwr.type = params->txpwr.type; 1827 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1828 link_sta->pub->txpwr.power = params->txpwr.power; 1829 ret = drv_sta_set_txpwr(local, sdata, sta); 1830 if (ret) 1831 return ret; 1832 } 1833 1834 if (params->supported_rates && 1835 params->supported_rates_len) { 1836 ieee80211_parse_bitrates(link->conf->chandef.width, 1837 sband, params->supported_rates, 1838 params->supported_rates_len, 1839 &link_sta->pub->supp_rates[sband->band]); 1840 } 1841 1842 if (params->ht_capa) 1843 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1844 params->ht_capa, link_sta); 1845 1846 /* VHT can override some HT caps such as the A-MSDU max length */ 1847 if (params->vht_capa) 1848 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1849 params->vht_capa, link_sta); 1850 1851 if (params->he_capa) 1852 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1853 (void *)params->he_capa, 1854 params->he_capa_len, 1855 (void *)params->he_6ghz_capa, 1856 link_sta); 1857 1858 if (params->he_capa && params->eht_capa) 1859 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1860 (u8 *)params->he_capa, 1861 params->he_capa_len, 1862 params->eht_capa, 1863 params->eht_capa_len, 1864 link_sta); 1865 1866 if (params->opmode_notif_used) { 1867 /* returned value is only needed for rc update, but the 1868 * rc isn't initialized here yet, so ignore it 1869 */ 1870 __ieee80211_vht_handle_opmode(sdata, link_sta, 1871 params->opmode_notif, 1872 sband->band); 1873 } 1874 1875 return ret; 1876 } 1877 1878 static int sta_apply_parameters(struct ieee80211_local *local, 1879 struct sta_info *sta, 1880 struct station_parameters *params) 1881 { 1882 struct ieee80211_sub_if_data *sdata = sta->sdata; 1883 u32 mask, set; 1884 int ret = 0; 1885 1886 mask = params->sta_flags_mask; 1887 set = params->sta_flags_set; 1888 1889 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1890 /* 1891 * In mesh mode, ASSOCIATED isn't part of the nl80211 1892 * API but must follow AUTHENTICATED for driver state. 1893 */ 1894 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1895 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1896 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1897 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1898 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1899 /* 1900 * TDLS -- everything follows authorized, but 1901 * only becoming authorized is possible, not 1902 * going back 1903 */ 1904 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1905 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1906 BIT(NL80211_STA_FLAG_ASSOCIATED); 1907 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1908 BIT(NL80211_STA_FLAG_ASSOCIATED); 1909 } 1910 } 1911 1912 if (mask & BIT(NL80211_STA_FLAG_WME) && 1913 local->hw.queues >= IEEE80211_NUM_ACS) 1914 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1915 1916 /* auth flags will be set later for TDLS, 1917 * and for unassociated stations that move to associated */ 1918 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1919 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1920 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1921 ret = sta_apply_auth_flags(local, sta, mask, set); 1922 if (ret) 1923 return ret; 1924 } 1925 1926 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1927 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1928 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1929 else 1930 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1931 } 1932 1933 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1934 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1935 if (set & BIT(NL80211_STA_FLAG_MFP)) 1936 set_sta_flag(sta, WLAN_STA_MFP); 1937 else 1938 clear_sta_flag(sta, WLAN_STA_MFP); 1939 } 1940 1941 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1942 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1943 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1944 else 1945 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1946 } 1947 1948 /* mark TDLS channel switch support, if the AP allows it */ 1949 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1950 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1951 params->ext_capab_len >= 4 && 1952 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1953 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1954 1955 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1956 !sdata->u.mgd.tdls_wider_bw_prohibited && 1957 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1958 params->ext_capab_len >= 8 && 1959 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1960 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1961 1962 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1963 sta->sta.uapsd_queues = params->uapsd_queues; 1964 sta->sta.max_sp = params->max_sp; 1965 } 1966 1967 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1968 params->ext_capab_len); 1969 1970 /* 1971 * cfg80211 validates this (1-2007) and allows setting the AID 1972 * only when creating a new station entry 1973 */ 1974 if (params->aid) 1975 sta->sta.aid = params->aid; 1976 1977 /* 1978 * Some of the following updates would be racy if called on an 1979 * existing station, via ieee80211_change_station(). However, 1980 * all such changes are rejected by cfg80211 except for updates 1981 * changing the supported rates on an existing but not yet used 1982 * TDLS peer. 1983 */ 1984 1985 if (params->listen_interval >= 0) 1986 sta->listen_interval = params->listen_interval; 1987 1988 ret = sta_link_apply_parameters(local, sta, false, 1989 ¶ms->link_sta_params); 1990 if (ret) 1991 return ret; 1992 1993 if (params->support_p2p_ps >= 0) 1994 sta->sta.support_p2p_ps = params->support_p2p_ps; 1995 1996 if (ieee80211_vif_is_mesh(&sdata->vif)) 1997 sta_apply_mesh_params(local, sta, params); 1998 1999 if (params->airtime_weight) 2000 sta->airtime_weight = params->airtime_weight; 2001 2002 /* set the STA state after all sta info from usermode has been set */ 2003 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2004 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2005 ret = sta_apply_auth_flags(local, sta, mask, set); 2006 if (ret) 2007 return ret; 2008 } 2009 2010 /* Mark the STA as MLO if MLD MAC address is available */ 2011 if (params->link_sta_params.mld_mac) 2012 sta->sta.mlo = true; 2013 2014 return 0; 2015 } 2016 2017 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2018 const u8 *mac, 2019 struct station_parameters *params) 2020 { 2021 struct ieee80211_local *local = wiphy_priv(wiphy); 2022 struct sta_info *sta; 2023 struct ieee80211_sub_if_data *sdata; 2024 int err; 2025 2026 if (params->vlan) { 2027 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2028 2029 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2030 sdata->vif.type != NL80211_IFTYPE_AP) 2031 return -EINVAL; 2032 } else 2033 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2034 2035 if (ether_addr_equal(mac, sdata->vif.addr)) 2036 return -EINVAL; 2037 2038 if (!is_valid_ether_addr(mac)) 2039 return -EINVAL; 2040 2041 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2042 sdata->vif.type == NL80211_IFTYPE_STATION && 2043 !sdata->u.mgd.associated) 2044 return -EINVAL; 2045 2046 /* 2047 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2048 * but we need to have a link_mac in that case as well, so use the 2049 * STA's MAC address in that case. 2050 */ 2051 if (params->link_sta_params.link_id >= 0) 2052 sta = sta_info_alloc_with_link(sdata, mac, 2053 params->link_sta_params.link_id, 2054 params->link_sta_params.link_mac ?: mac, 2055 GFP_KERNEL); 2056 else 2057 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2058 2059 if (!sta) 2060 return -ENOMEM; 2061 2062 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2063 sta->sta.tdls = true; 2064 2065 /* Though the mutex is not needed here (since the station is not 2066 * visible yet), sta_apply_parameters (and inner functions) require 2067 * the mutex due to other paths. 2068 */ 2069 mutex_lock(&local->sta_mtx); 2070 err = sta_apply_parameters(local, sta, params); 2071 mutex_unlock(&local->sta_mtx); 2072 if (err) { 2073 sta_info_free(local, sta); 2074 return err; 2075 } 2076 2077 /* 2078 * for TDLS and for unassociated station, rate control should be 2079 * initialized only when rates are known and station is marked 2080 * authorized/associated 2081 */ 2082 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2083 test_sta_flag(sta, WLAN_STA_ASSOC)) 2084 rate_control_rate_init(sta); 2085 2086 return sta_info_insert(sta); 2087 } 2088 2089 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2090 struct station_del_parameters *params) 2091 { 2092 struct ieee80211_sub_if_data *sdata; 2093 2094 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2095 2096 if (params->mac) 2097 return sta_info_destroy_addr_bss(sdata, params->mac); 2098 2099 sta_info_flush(sdata); 2100 return 0; 2101 } 2102 2103 static int ieee80211_change_station(struct wiphy *wiphy, 2104 struct net_device *dev, const u8 *mac, 2105 struct station_parameters *params) 2106 { 2107 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2108 struct ieee80211_local *local = wiphy_priv(wiphy); 2109 struct sta_info *sta; 2110 struct ieee80211_sub_if_data *vlansdata; 2111 enum cfg80211_station_type statype; 2112 int err; 2113 2114 mutex_lock(&local->sta_mtx); 2115 2116 sta = sta_info_get_bss(sdata, mac); 2117 if (!sta) { 2118 err = -ENOENT; 2119 goto out_err; 2120 } 2121 2122 switch (sdata->vif.type) { 2123 case NL80211_IFTYPE_MESH_POINT: 2124 if (sdata->u.mesh.user_mpm) 2125 statype = CFG80211_STA_MESH_PEER_USER; 2126 else 2127 statype = CFG80211_STA_MESH_PEER_KERNEL; 2128 break; 2129 case NL80211_IFTYPE_ADHOC: 2130 statype = CFG80211_STA_IBSS; 2131 break; 2132 case NL80211_IFTYPE_STATION: 2133 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2134 statype = CFG80211_STA_AP_STA; 2135 break; 2136 } 2137 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2138 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2139 else 2140 statype = CFG80211_STA_TDLS_PEER_SETUP; 2141 break; 2142 case NL80211_IFTYPE_AP: 2143 case NL80211_IFTYPE_AP_VLAN: 2144 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2145 statype = CFG80211_STA_AP_CLIENT; 2146 else 2147 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2148 break; 2149 default: 2150 err = -EOPNOTSUPP; 2151 goto out_err; 2152 } 2153 2154 err = cfg80211_check_station_change(wiphy, params, statype); 2155 if (err) 2156 goto out_err; 2157 2158 if (params->vlan && params->vlan != sta->sdata->dev) { 2159 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2160 2161 if (params->vlan->ieee80211_ptr->use_4addr) { 2162 if (vlansdata->u.vlan.sta) { 2163 err = -EBUSY; 2164 goto out_err; 2165 } 2166 2167 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2168 __ieee80211_check_fast_rx_iface(vlansdata); 2169 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2170 } 2171 2172 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2173 sta->sdata->u.vlan.sta) { 2174 ieee80211_clear_fast_rx(sta); 2175 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2176 } 2177 2178 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2179 ieee80211_vif_dec_num_mcast(sta->sdata); 2180 2181 sta->sdata = vlansdata; 2182 ieee80211_check_fast_xmit(sta); 2183 2184 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2185 ieee80211_vif_inc_num_mcast(sta->sdata); 2186 cfg80211_send_layer2_update(sta->sdata->dev, 2187 sta->sta.addr); 2188 } 2189 } 2190 2191 /* we use sta_info_get_bss() so this might be different */ 2192 if (sdata != sta->sdata) { 2193 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2194 err = sta_apply_parameters(local, sta, params); 2195 mutex_unlock(&sta->sdata->wdev.mtx); 2196 } else { 2197 err = sta_apply_parameters(local, sta, params); 2198 } 2199 if (err) 2200 goto out_err; 2201 2202 mutex_unlock(&local->sta_mtx); 2203 2204 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2205 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2206 ieee80211_recalc_ps(local); 2207 ieee80211_recalc_ps_vif(sdata); 2208 } 2209 2210 return 0; 2211 out_err: 2212 mutex_unlock(&local->sta_mtx); 2213 return err; 2214 } 2215 2216 #ifdef CONFIG_MAC80211_MESH 2217 static int ieee80211_add_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 sta = sta_info_get(sdata, next_hop); 2228 if (!sta) { 2229 rcu_read_unlock(); 2230 return -ENOENT; 2231 } 2232 2233 mpath = mesh_path_add(sdata, dst); 2234 if (IS_ERR(mpath)) { 2235 rcu_read_unlock(); 2236 return PTR_ERR(mpath); 2237 } 2238 2239 mesh_path_fix_nexthop(mpath, sta); 2240 2241 rcu_read_unlock(); 2242 return 0; 2243 } 2244 2245 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2246 const u8 *dst) 2247 { 2248 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2249 2250 if (dst) 2251 return mesh_path_del(sdata, dst); 2252 2253 mesh_path_flush_by_iface(sdata); 2254 return 0; 2255 } 2256 2257 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2258 const u8 *dst, const u8 *next_hop) 2259 { 2260 struct ieee80211_sub_if_data *sdata; 2261 struct mesh_path *mpath; 2262 struct sta_info *sta; 2263 2264 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2265 2266 rcu_read_lock(); 2267 2268 sta = sta_info_get(sdata, next_hop); 2269 if (!sta) { 2270 rcu_read_unlock(); 2271 return -ENOENT; 2272 } 2273 2274 mpath = mesh_path_lookup(sdata, dst); 2275 if (!mpath) { 2276 rcu_read_unlock(); 2277 return -ENOENT; 2278 } 2279 2280 mesh_path_fix_nexthop(mpath, sta); 2281 2282 rcu_read_unlock(); 2283 return 0; 2284 } 2285 2286 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2287 struct mpath_info *pinfo) 2288 { 2289 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2290 2291 if (next_hop_sta) 2292 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2293 else 2294 eth_zero_addr(next_hop); 2295 2296 memset(pinfo, 0, sizeof(*pinfo)); 2297 2298 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2299 2300 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2301 MPATH_INFO_SN | 2302 MPATH_INFO_METRIC | 2303 MPATH_INFO_EXPTIME | 2304 MPATH_INFO_DISCOVERY_TIMEOUT | 2305 MPATH_INFO_DISCOVERY_RETRIES | 2306 MPATH_INFO_FLAGS | 2307 MPATH_INFO_HOP_COUNT | 2308 MPATH_INFO_PATH_CHANGE; 2309 2310 pinfo->frame_qlen = mpath->frame_queue.qlen; 2311 pinfo->sn = mpath->sn; 2312 pinfo->metric = mpath->metric; 2313 if (time_before(jiffies, mpath->exp_time)) 2314 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2315 pinfo->discovery_timeout = 2316 jiffies_to_msecs(mpath->discovery_timeout); 2317 pinfo->discovery_retries = mpath->discovery_retries; 2318 if (mpath->flags & MESH_PATH_ACTIVE) 2319 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2320 if (mpath->flags & MESH_PATH_RESOLVING) 2321 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2322 if (mpath->flags & MESH_PATH_SN_VALID) 2323 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2324 if (mpath->flags & MESH_PATH_FIXED) 2325 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2326 if (mpath->flags & MESH_PATH_RESOLVED) 2327 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2328 pinfo->hop_count = mpath->hop_count; 2329 pinfo->path_change_count = mpath->path_change_count; 2330 } 2331 2332 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2333 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2334 2335 { 2336 struct ieee80211_sub_if_data *sdata; 2337 struct mesh_path *mpath; 2338 2339 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2340 2341 rcu_read_lock(); 2342 mpath = mesh_path_lookup(sdata, dst); 2343 if (!mpath) { 2344 rcu_read_unlock(); 2345 return -ENOENT; 2346 } 2347 memcpy(dst, mpath->dst, ETH_ALEN); 2348 mpath_set_pinfo(mpath, next_hop, pinfo); 2349 rcu_read_unlock(); 2350 return 0; 2351 } 2352 2353 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2354 int idx, u8 *dst, u8 *next_hop, 2355 struct mpath_info *pinfo) 2356 { 2357 struct ieee80211_sub_if_data *sdata; 2358 struct mesh_path *mpath; 2359 2360 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2361 2362 rcu_read_lock(); 2363 mpath = mesh_path_lookup_by_idx(sdata, idx); 2364 if (!mpath) { 2365 rcu_read_unlock(); 2366 return -ENOENT; 2367 } 2368 memcpy(dst, mpath->dst, ETH_ALEN); 2369 mpath_set_pinfo(mpath, next_hop, pinfo); 2370 rcu_read_unlock(); 2371 return 0; 2372 } 2373 2374 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2375 struct mpath_info *pinfo) 2376 { 2377 memset(pinfo, 0, sizeof(*pinfo)); 2378 memcpy(mpp, mpath->mpp, ETH_ALEN); 2379 2380 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2381 } 2382 2383 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2384 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2385 2386 { 2387 struct ieee80211_sub_if_data *sdata; 2388 struct mesh_path *mpath; 2389 2390 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2391 2392 rcu_read_lock(); 2393 mpath = mpp_path_lookup(sdata, dst); 2394 if (!mpath) { 2395 rcu_read_unlock(); 2396 return -ENOENT; 2397 } 2398 memcpy(dst, mpath->dst, ETH_ALEN); 2399 mpp_set_pinfo(mpath, mpp, pinfo); 2400 rcu_read_unlock(); 2401 return 0; 2402 } 2403 2404 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2405 int idx, u8 *dst, u8 *mpp, 2406 struct mpath_info *pinfo) 2407 { 2408 struct ieee80211_sub_if_data *sdata; 2409 struct mesh_path *mpath; 2410 2411 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2412 2413 rcu_read_lock(); 2414 mpath = mpp_path_lookup_by_idx(sdata, idx); 2415 if (!mpath) { 2416 rcu_read_unlock(); 2417 return -ENOENT; 2418 } 2419 memcpy(dst, mpath->dst, ETH_ALEN); 2420 mpp_set_pinfo(mpath, mpp, pinfo); 2421 rcu_read_unlock(); 2422 return 0; 2423 } 2424 2425 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2426 struct net_device *dev, 2427 struct mesh_config *conf) 2428 { 2429 struct ieee80211_sub_if_data *sdata; 2430 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2431 2432 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2433 return 0; 2434 } 2435 2436 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2437 { 2438 return (mask >> (parm-1)) & 0x1; 2439 } 2440 2441 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2442 const struct mesh_setup *setup) 2443 { 2444 u8 *new_ie; 2445 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2446 struct ieee80211_sub_if_data, u.mesh); 2447 int i; 2448 2449 /* allocate information elements */ 2450 new_ie = NULL; 2451 2452 if (setup->ie_len) { 2453 new_ie = kmemdup(setup->ie, setup->ie_len, 2454 GFP_KERNEL); 2455 if (!new_ie) 2456 return -ENOMEM; 2457 } 2458 ifmsh->ie_len = setup->ie_len; 2459 ifmsh->ie = new_ie; 2460 2461 /* now copy the rest of the setup parameters */ 2462 ifmsh->mesh_id_len = setup->mesh_id_len; 2463 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2464 ifmsh->mesh_sp_id = setup->sync_method; 2465 ifmsh->mesh_pp_id = setup->path_sel_proto; 2466 ifmsh->mesh_pm_id = setup->path_metric; 2467 ifmsh->user_mpm = setup->user_mpm; 2468 ifmsh->mesh_auth_id = setup->auth_id; 2469 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2470 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2471 if (setup->is_authenticated) 2472 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2473 if (setup->is_secure) 2474 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2475 2476 /* mcast rate setting in Mesh Node */ 2477 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2478 sizeof(setup->mcast_rate)); 2479 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2480 2481 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2482 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2483 2484 sdata->beacon_rate_set = false; 2485 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2486 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2487 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2488 sdata->beacon_rateidx_mask[i] = 2489 setup->beacon_rate.control[i].legacy; 2490 if (sdata->beacon_rateidx_mask[i]) 2491 sdata->beacon_rate_set = true; 2492 } 2493 } 2494 2495 return 0; 2496 } 2497 2498 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2499 struct net_device *dev, u32 mask, 2500 const struct mesh_config *nconf) 2501 { 2502 struct mesh_config *conf; 2503 struct ieee80211_sub_if_data *sdata; 2504 struct ieee80211_if_mesh *ifmsh; 2505 2506 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2507 ifmsh = &sdata->u.mesh; 2508 2509 /* Set the config options which we are interested in setting */ 2510 conf = &(sdata->u.mesh.mshcfg); 2511 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2512 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2513 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2514 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2515 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2516 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2517 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2518 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2519 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2520 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2521 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2522 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2523 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2524 conf->element_ttl = nconf->element_ttl; 2525 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2526 if (ifmsh->user_mpm) 2527 return -EBUSY; 2528 conf->auto_open_plinks = nconf->auto_open_plinks; 2529 } 2530 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2531 conf->dot11MeshNbrOffsetMaxNeighbor = 2532 nconf->dot11MeshNbrOffsetMaxNeighbor; 2533 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2534 conf->dot11MeshHWMPmaxPREQretries = 2535 nconf->dot11MeshHWMPmaxPREQretries; 2536 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2537 conf->path_refresh_time = nconf->path_refresh_time; 2538 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2539 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2540 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2541 conf->dot11MeshHWMPactivePathTimeout = 2542 nconf->dot11MeshHWMPactivePathTimeout; 2543 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2544 conf->dot11MeshHWMPpreqMinInterval = 2545 nconf->dot11MeshHWMPpreqMinInterval; 2546 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2547 conf->dot11MeshHWMPperrMinInterval = 2548 nconf->dot11MeshHWMPperrMinInterval; 2549 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2550 mask)) 2551 conf->dot11MeshHWMPnetDiameterTraversalTime = 2552 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2554 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2555 ieee80211_mesh_root_setup(ifmsh); 2556 } 2557 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2558 /* our current gate announcement implementation rides on root 2559 * announcements, so require this ifmsh to also be a root node 2560 * */ 2561 if (nconf->dot11MeshGateAnnouncementProtocol && 2562 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2563 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2564 ieee80211_mesh_root_setup(ifmsh); 2565 } 2566 conf->dot11MeshGateAnnouncementProtocol = 2567 nconf->dot11MeshGateAnnouncementProtocol; 2568 } 2569 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2570 conf->dot11MeshHWMPRannInterval = 2571 nconf->dot11MeshHWMPRannInterval; 2572 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2573 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2574 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2575 /* our RSSI threshold implementation is supported only for 2576 * devices that report signal in dBm. 2577 */ 2578 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2579 return -ENOTSUPP; 2580 conf->rssi_threshold = nconf->rssi_threshold; 2581 } 2582 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2583 conf->ht_opmode = nconf->ht_opmode; 2584 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2585 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2586 BSS_CHANGED_HT); 2587 } 2588 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2589 conf->dot11MeshHWMPactivePathToRootTimeout = 2590 nconf->dot11MeshHWMPactivePathToRootTimeout; 2591 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2592 conf->dot11MeshHWMProotInterval = 2593 nconf->dot11MeshHWMProotInterval; 2594 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2595 conf->dot11MeshHWMPconfirmationInterval = 2596 nconf->dot11MeshHWMPconfirmationInterval; 2597 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2598 conf->power_mode = nconf->power_mode; 2599 ieee80211_mps_local_status_update(sdata); 2600 } 2601 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2602 conf->dot11MeshAwakeWindowDuration = 2603 nconf->dot11MeshAwakeWindowDuration; 2604 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2605 conf->plink_timeout = nconf->plink_timeout; 2606 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2607 conf->dot11MeshConnectedToMeshGate = 2608 nconf->dot11MeshConnectedToMeshGate; 2609 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2610 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2611 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2612 conf->dot11MeshConnectedToAuthServer = 2613 nconf->dot11MeshConnectedToAuthServer; 2614 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2615 return 0; 2616 } 2617 2618 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2619 const struct mesh_config *conf, 2620 const struct mesh_setup *setup) 2621 { 2622 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2623 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2624 int err; 2625 2626 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2627 err = copy_mesh_setup(ifmsh, setup); 2628 if (err) 2629 return err; 2630 2631 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2632 2633 /* can mesh use other SMPS modes? */ 2634 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2635 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2636 2637 mutex_lock(&sdata->local->mtx); 2638 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2639 IEEE80211_CHANCTX_SHARED); 2640 mutex_unlock(&sdata->local->mtx); 2641 if (err) 2642 return err; 2643 2644 return ieee80211_start_mesh(sdata); 2645 } 2646 2647 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2648 { 2649 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2650 2651 ieee80211_stop_mesh(sdata); 2652 mutex_lock(&sdata->local->mtx); 2653 ieee80211_link_release_channel(&sdata->deflink); 2654 kfree(sdata->u.mesh.ie); 2655 mutex_unlock(&sdata->local->mtx); 2656 2657 return 0; 2658 } 2659 #endif 2660 2661 static int ieee80211_change_bss(struct wiphy *wiphy, 2662 struct net_device *dev, 2663 struct bss_parameters *params) 2664 { 2665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2666 struct ieee80211_link_data *link; 2667 struct ieee80211_supported_band *sband; 2668 u32 changed = 0; 2669 2670 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2671 if (IS_ERR(link)) 2672 return PTR_ERR(link); 2673 2674 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2675 return -ENOENT; 2676 2677 sband = ieee80211_get_link_sband(link); 2678 if (!sband) 2679 return -EINVAL; 2680 2681 if (params->basic_rates) { 2682 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2683 wiphy->bands[sband->band], 2684 params->basic_rates, 2685 params->basic_rates_len, 2686 &link->conf->basic_rates)) 2687 return -EINVAL; 2688 changed |= BSS_CHANGED_BASIC_RATES; 2689 ieee80211_check_rate_mask(link); 2690 } 2691 2692 if (params->use_cts_prot >= 0) { 2693 link->conf->use_cts_prot = params->use_cts_prot; 2694 changed |= BSS_CHANGED_ERP_CTS_PROT; 2695 } 2696 if (params->use_short_preamble >= 0) { 2697 link->conf->use_short_preamble = params->use_short_preamble; 2698 changed |= BSS_CHANGED_ERP_PREAMBLE; 2699 } 2700 2701 if (!link->conf->use_short_slot && 2702 (sband->band == NL80211_BAND_5GHZ || 2703 sband->band == NL80211_BAND_6GHZ)) { 2704 link->conf->use_short_slot = true; 2705 changed |= BSS_CHANGED_ERP_SLOT; 2706 } 2707 2708 if (params->use_short_slot_time >= 0) { 2709 link->conf->use_short_slot = params->use_short_slot_time; 2710 changed |= BSS_CHANGED_ERP_SLOT; 2711 } 2712 2713 if (params->ap_isolate >= 0) { 2714 if (params->ap_isolate) 2715 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2716 else 2717 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2718 ieee80211_check_fast_rx_iface(sdata); 2719 } 2720 2721 if (params->ht_opmode >= 0) { 2722 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2723 changed |= BSS_CHANGED_HT; 2724 } 2725 2726 if (params->p2p_ctwindow >= 0) { 2727 link->conf->p2p_noa_attr.oppps_ctwindow &= 2728 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2729 link->conf->p2p_noa_attr.oppps_ctwindow |= 2730 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2731 changed |= BSS_CHANGED_P2P_PS; 2732 } 2733 2734 if (params->p2p_opp_ps > 0) { 2735 link->conf->p2p_noa_attr.oppps_ctwindow |= 2736 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2737 changed |= BSS_CHANGED_P2P_PS; 2738 } else if (params->p2p_opp_ps == 0) { 2739 link->conf->p2p_noa_attr.oppps_ctwindow &= 2740 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2741 changed |= BSS_CHANGED_P2P_PS; 2742 } 2743 2744 ieee80211_link_info_change_notify(sdata, link, changed); 2745 2746 return 0; 2747 } 2748 2749 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2750 struct net_device *dev, 2751 struct ieee80211_txq_params *params) 2752 { 2753 struct ieee80211_local *local = wiphy_priv(wiphy); 2754 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2755 struct ieee80211_link_data *link = 2756 ieee80211_link_or_deflink(sdata, params->link_id, true); 2757 struct ieee80211_tx_queue_params p; 2758 2759 if (!local->ops->conf_tx) 2760 return -EOPNOTSUPP; 2761 2762 if (local->hw.queues < IEEE80211_NUM_ACS) 2763 return -EOPNOTSUPP; 2764 2765 if (IS_ERR(link)) 2766 return PTR_ERR(link); 2767 2768 memset(&p, 0, sizeof(p)); 2769 p.aifs = params->aifs; 2770 p.cw_max = params->cwmax; 2771 p.cw_min = params->cwmin; 2772 p.txop = params->txop; 2773 2774 /* 2775 * Setting tx queue params disables u-apsd because it's only 2776 * called in master mode. 2777 */ 2778 p.uapsd = false; 2779 2780 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2781 2782 link->tx_conf[params->ac] = p; 2783 if (drv_conf_tx(local, link, params->ac, &p)) { 2784 wiphy_debug(local->hw.wiphy, 2785 "failed to set TX queue parameters for AC %d\n", 2786 params->ac); 2787 return -EINVAL; 2788 } 2789 2790 ieee80211_link_info_change_notify(sdata, link, 2791 BSS_CHANGED_QOS); 2792 2793 return 0; 2794 } 2795 2796 #ifdef CONFIG_PM 2797 static int ieee80211_suspend(struct wiphy *wiphy, 2798 struct cfg80211_wowlan *wowlan) 2799 { 2800 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2801 } 2802 2803 static int ieee80211_resume(struct wiphy *wiphy) 2804 { 2805 return __ieee80211_resume(wiphy_priv(wiphy)); 2806 } 2807 #else 2808 #define ieee80211_suspend NULL 2809 #define ieee80211_resume NULL 2810 #endif 2811 2812 static int ieee80211_scan(struct wiphy *wiphy, 2813 struct cfg80211_scan_request *req) 2814 { 2815 struct ieee80211_sub_if_data *sdata; 2816 2817 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2818 2819 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2820 case NL80211_IFTYPE_STATION: 2821 case NL80211_IFTYPE_ADHOC: 2822 case NL80211_IFTYPE_MESH_POINT: 2823 case NL80211_IFTYPE_P2P_CLIENT: 2824 case NL80211_IFTYPE_P2P_DEVICE: 2825 break; 2826 case NL80211_IFTYPE_P2P_GO: 2827 if (sdata->local->ops->hw_scan) 2828 break; 2829 /* 2830 * FIXME: implement NoA while scanning in software, 2831 * for now fall through to allow scanning only when 2832 * beaconing hasn't been configured yet 2833 */ 2834 fallthrough; 2835 case NL80211_IFTYPE_AP: 2836 /* 2837 * If the scan has been forced (and the driver supports 2838 * forcing), don't care about being beaconing already. 2839 * This will create problems to the attached stations (e.g. all 2840 * the frames sent while scanning on other channel will be 2841 * lost) 2842 */ 2843 if (sdata->deflink.u.ap.beacon && 2844 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2845 !(req->flags & NL80211_SCAN_FLAG_AP))) 2846 return -EOPNOTSUPP; 2847 break; 2848 case NL80211_IFTYPE_NAN: 2849 default: 2850 return -EOPNOTSUPP; 2851 } 2852 2853 return ieee80211_request_scan(sdata, req); 2854 } 2855 2856 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2857 { 2858 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2859 } 2860 2861 static int 2862 ieee80211_sched_scan_start(struct wiphy *wiphy, 2863 struct net_device *dev, 2864 struct cfg80211_sched_scan_request *req) 2865 { 2866 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2867 2868 if (!sdata->local->ops->sched_scan_start) 2869 return -EOPNOTSUPP; 2870 2871 return ieee80211_request_sched_scan_start(sdata, req); 2872 } 2873 2874 static int 2875 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2876 u64 reqid) 2877 { 2878 struct ieee80211_local *local = wiphy_priv(wiphy); 2879 2880 if (!local->ops->sched_scan_stop) 2881 return -EOPNOTSUPP; 2882 2883 return ieee80211_request_sched_scan_stop(local); 2884 } 2885 2886 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2887 struct cfg80211_auth_request *req) 2888 { 2889 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2890 } 2891 2892 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2893 struct cfg80211_assoc_request *req) 2894 { 2895 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2896 } 2897 2898 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2899 struct cfg80211_deauth_request *req) 2900 { 2901 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2902 } 2903 2904 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2905 struct cfg80211_disassoc_request *req) 2906 { 2907 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2908 } 2909 2910 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2911 struct cfg80211_ibss_params *params) 2912 { 2913 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2914 } 2915 2916 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2917 { 2918 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2919 } 2920 2921 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2922 struct ocb_setup *setup) 2923 { 2924 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2925 } 2926 2927 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2928 { 2929 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2930 } 2931 2932 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2933 int rate[NUM_NL80211_BANDS]) 2934 { 2935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2936 2937 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2938 sizeof(int) * NUM_NL80211_BANDS); 2939 2940 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2941 BSS_CHANGED_MCAST_RATE); 2942 2943 return 0; 2944 } 2945 2946 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2947 { 2948 struct ieee80211_local *local = wiphy_priv(wiphy); 2949 int err; 2950 2951 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2952 ieee80211_check_fast_xmit_all(local); 2953 2954 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2955 2956 if (err) { 2957 ieee80211_check_fast_xmit_all(local); 2958 return err; 2959 } 2960 } 2961 2962 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2963 (changed & WIPHY_PARAM_DYN_ACK)) { 2964 s16 coverage_class; 2965 2966 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2967 wiphy->coverage_class : -1; 2968 err = drv_set_coverage_class(local, coverage_class); 2969 2970 if (err) 2971 return err; 2972 } 2973 2974 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2975 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2976 2977 if (err) 2978 return err; 2979 } 2980 2981 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2982 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2983 return -EINVAL; 2984 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2985 } 2986 if (changed & WIPHY_PARAM_RETRY_LONG) { 2987 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2988 return -EINVAL; 2989 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2990 } 2991 if (changed & 2992 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2993 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2994 2995 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2996 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2997 WIPHY_PARAM_TXQ_QUANTUM)) 2998 ieee80211_txq_set_params(local); 2999 3000 return 0; 3001 } 3002 3003 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3004 struct wireless_dev *wdev, 3005 enum nl80211_tx_power_setting type, int mbm) 3006 { 3007 struct ieee80211_local *local = wiphy_priv(wiphy); 3008 struct ieee80211_sub_if_data *sdata; 3009 enum nl80211_tx_power_setting txp_type = type; 3010 bool update_txp_type = false; 3011 bool has_monitor = false; 3012 3013 if (wdev) { 3014 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3015 3016 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3017 sdata = wiphy_dereference(local->hw.wiphy, 3018 local->monitor_sdata); 3019 if (!sdata) 3020 return -EOPNOTSUPP; 3021 } 3022 3023 switch (type) { 3024 case NL80211_TX_POWER_AUTOMATIC: 3025 sdata->deflink.user_power_level = 3026 IEEE80211_UNSET_POWER_LEVEL; 3027 txp_type = NL80211_TX_POWER_LIMITED; 3028 break; 3029 case NL80211_TX_POWER_LIMITED: 3030 case NL80211_TX_POWER_FIXED: 3031 if (mbm < 0 || (mbm % 100)) 3032 return -EOPNOTSUPP; 3033 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3034 break; 3035 } 3036 3037 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3038 update_txp_type = true; 3039 sdata->vif.bss_conf.txpower_type = txp_type; 3040 } 3041 3042 ieee80211_recalc_txpower(sdata, update_txp_type); 3043 3044 return 0; 3045 } 3046 3047 switch (type) { 3048 case NL80211_TX_POWER_AUTOMATIC: 3049 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3050 txp_type = NL80211_TX_POWER_LIMITED; 3051 break; 3052 case NL80211_TX_POWER_LIMITED: 3053 case NL80211_TX_POWER_FIXED: 3054 if (mbm < 0 || (mbm % 100)) 3055 return -EOPNOTSUPP; 3056 local->user_power_level = MBM_TO_DBM(mbm); 3057 break; 3058 } 3059 3060 mutex_lock(&local->iflist_mtx); 3061 list_for_each_entry(sdata, &local->interfaces, list) { 3062 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3063 has_monitor = true; 3064 continue; 3065 } 3066 sdata->deflink.user_power_level = local->user_power_level; 3067 if (txp_type != sdata->vif.bss_conf.txpower_type) 3068 update_txp_type = true; 3069 sdata->vif.bss_conf.txpower_type = txp_type; 3070 } 3071 list_for_each_entry(sdata, &local->interfaces, list) { 3072 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3073 continue; 3074 ieee80211_recalc_txpower(sdata, update_txp_type); 3075 } 3076 mutex_unlock(&local->iflist_mtx); 3077 3078 if (has_monitor) { 3079 sdata = wiphy_dereference(local->hw.wiphy, 3080 local->monitor_sdata); 3081 if (sdata) { 3082 sdata->deflink.user_power_level = local->user_power_level; 3083 if (txp_type != sdata->vif.bss_conf.txpower_type) 3084 update_txp_type = true; 3085 sdata->vif.bss_conf.txpower_type = txp_type; 3086 3087 ieee80211_recalc_txpower(sdata, update_txp_type); 3088 } 3089 } 3090 3091 return 0; 3092 } 3093 3094 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3095 struct wireless_dev *wdev, 3096 int *dbm) 3097 { 3098 struct ieee80211_local *local = wiphy_priv(wiphy); 3099 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3100 3101 if (local->ops->get_txpower) 3102 return drv_get_txpower(local, sdata, dbm); 3103 3104 if (!local->use_chanctx) 3105 *dbm = local->hw.conf.power_level; 3106 else 3107 *dbm = sdata->vif.bss_conf.txpower; 3108 3109 return 0; 3110 } 3111 3112 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3113 { 3114 struct ieee80211_local *local = wiphy_priv(wiphy); 3115 3116 drv_rfkill_poll(local); 3117 } 3118 3119 #ifdef CONFIG_NL80211_TESTMODE 3120 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3121 struct wireless_dev *wdev, 3122 void *data, int len) 3123 { 3124 struct ieee80211_local *local = wiphy_priv(wiphy); 3125 struct ieee80211_vif *vif = NULL; 3126 3127 if (!local->ops->testmode_cmd) 3128 return -EOPNOTSUPP; 3129 3130 if (wdev) { 3131 struct ieee80211_sub_if_data *sdata; 3132 3133 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3134 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3135 vif = &sdata->vif; 3136 } 3137 3138 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3139 } 3140 3141 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3142 struct sk_buff *skb, 3143 struct netlink_callback *cb, 3144 void *data, int len) 3145 { 3146 struct ieee80211_local *local = wiphy_priv(wiphy); 3147 3148 if (!local->ops->testmode_dump) 3149 return -EOPNOTSUPP; 3150 3151 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3152 } 3153 #endif 3154 3155 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3156 struct ieee80211_link_data *link, 3157 enum ieee80211_smps_mode smps_mode) 3158 { 3159 const u8 *ap; 3160 enum ieee80211_smps_mode old_req; 3161 int err; 3162 struct sta_info *sta; 3163 bool tdls_peer_found = false; 3164 3165 lockdep_assert_held(&sdata->wdev.mtx); 3166 3167 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3168 return -EINVAL; 3169 3170 old_req = link->u.mgd.req_smps; 3171 link->u.mgd.req_smps = smps_mode; 3172 3173 if (old_req == smps_mode && 3174 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3175 return 0; 3176 3177 /* 3178 * If not associated, or current association is not an HT 3179 * association, there's no need to do anything, just store 3180 * the new value until we associate. 3181 */ 3182 if (!sdata->u.mgd.associated || 3183 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3184 return 0; 3185 3186 ap = link->u.mgd.bssid; 3187 3188 rcu_read_lock(); 3189 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3190 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3191 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3192 continue; 3193 3194 tdls_peer_found = true; 3195 break; 3196 } 3197 rcu_read_unlock(); 3198 3199 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3200 if (tdls_peer_found || !sdata->u.mgd.powersave) 3201 smps_mode = IEEE80211_SMPS_OFF; 3202 else 3203 smps_mode = IEEE80211_SMPS_DYNAMIC; 3204 } 3205 3206 /* send SM PS frame to AP */ 3207 err = ieee80211_send_smps_action(sdata, smps_mode, 3208 ap, ap); 3209 if (err) 3210 link->u.mgd.req_smps = old_req; 3211 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3212 ieee80211_teardown_tdls_peers(sdata); 3213 3214 return err; 3215 } 3216 3217 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3218 bool enabled, int timeout) 3219 { 3220 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3221 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3222 unsigned int link_id; 3223 3224 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3225 return -EOPNOTSUPP; 3226 3227 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3228 return -EOPNOTSUPP; 3229 3230 if (enabled == sdata->u.mgd.powersave && 3231 timeout == local->dynamic_ps_forced_timeout) 3232 return 0; 3233 3234 sdata->u.mgd.powersave = enabled; 3235 local->dynamic_ps_forced_timeout = timeout; 3236 3237 /* no change, but if automatic follow powersave */ 3238 sdata_lock(sdata); 3239 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3240 struct ieee80211_link_data *link; 3241 3242 link = sdata_dereference(sdata->link[link_id], sdata); 3243 3244 if (!link) 3245 continue; 3246 __ieee80211_request_smps_mgd(sdata, link, 3247 link->u.mgd.req_smps); 3248 } 3249 sdata_unlock(sdata); 3250 3251 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3252 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3253 3254 ieee80211_recalc_ps(local); 3255 ieee80211_recalc_ps_vif(sdata); 3256 ieee80211_check_fast_rx_iface(sdata); 3257 3258 return 0; 3259 } 3260 3261 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3262 struct net_device *dev, 3263 s32 rssi_thold, u32 rssi_hyst) 3264 { 3265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3266 struct ieee80211_vif *vif = &sdata->vif; 3267 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3268 3269 if (rssi_thold == bss_conf->cqm_rssi_thold && 3270 rssi_hyst == bss_conf->cqm_rssi_hyst) 3271 return 0; 3272 3273 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3274 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3275 return -EOPNOTSUPP; 3276 3277 bss_conf->cqm_rssi_thold = rssi_thold; 3278 bss_conf->cqm_rssi_hyst = rssi_hyst; 3279 bss_conf->cqm_rssi_low = 0; 3280 bss_conf->cqm_rssi_high = 0; 3281 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3282 3283 /* tell the driver upon association, unless already associated */ 3284 if (sdata->u.mgd.associated && 3285 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3286 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3287 BSS_CHANGED_CQM); 3288 3289 return 0; 3290 } 3291 3292 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3293 struct net_device *dev, 3294 s32 rssi_low, s32 rssi_high) 3295 { 3296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3297 struct ieee80211_vif *vif = &sdata->vif; 3298 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3299 3300 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3301 return -EOPNOTSUPP; 3302 3303 bss_conf->cqm_rssi_low = rssi_low; 3304 bss_conf->cqm_rssi_high = rssi_high; 3305 bss_conf->cqm_rssi_thold = 0; 3306 bss_conf->cqm_rssi_hyst = 0; 3307 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3308 3309 /* tell the driver upon association, unless already associated */ 3310 if (sdata->u.mgd.associated && 3311 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3312 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3313 BSS_CHANGED_CQM); 3314 3315 return 0; 3316 } 3317 3318 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3319 struct net_device *dev, 3320 unsigned int link_id, 3321 const u8 *addr, 3322 const struct cfg80211_bitrate_mask *mask) 3323 { 3324 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3325 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3326 int i, ret; 3327 3328 if (!ieee80211_sdata_running(sdata)) 3329 return -ENETDOWN; 3330 3331 /* 3332 * If active validate the setting and reject it if it doesn't leave 3333 * at least one basic rate usable, since we really have to be able 3334 * to send something, and if we're an AP we have to be able to do 3335 * so at a basic rate so that all clients can receive it. 3336 */ 3337 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3338 sdata->vif.bss_conf.chandef.chan) { 3339 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3340 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3341 3342 if (!(mask->control[band].legacy & basic_rates)) 3343 return -EINVAL; 3344 } 3345 3346 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3347 ret = drv_set_bitrate_mask(local, sdata, mask); 3348 if (ret) 3349 return ret; 3350 } 3351 3352 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3353 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3354 int j; 3355 3356 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3357 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3358 sizeof(mask->control[i].ht_mcs)); 3359 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3360 mask->control[i].vht_mcs, 3361 sizeof(mask->control[i].vht_mcs)); 3362 3363 sdata->rc_has_mcs_mask[i] = false; 3364 sdata->rc_has_vht_mcs_mask[i] = false; 3365 if (!sband) 3366 continue; 3367 3368 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3369 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3370 sdata->rc_has_mcs_mask[i] = true; 3371 break; 3372 } 3373 } 3374 3375 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3376 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3377 sdata->rc_has_vht_mcs_mask[i] = true; 3378 break; 3379 } 3380 } 3381 } 3382 3383 return 0; 3384 } 3385 3386 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3387 struct net_device *dev, 3388 struct cfg80211_chan_def *chandef, 3389 u32 cac_time_ms) 3390 { 3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3392 struct ieee80211_local *local = sdata->local; 3393 int err; 3394 3395 mutex_lock(&local->mtx); 3396 if (!list_empty(&local->roc_list) || local->scanning) { 3397 err = -EBUSY; 3398 goto out_unlock; 3399 } 3400 3401 /* whatever, but channel contexts should not complain about that one */ 3402 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3403 sdata->deflink.needed_rx_chains = local->rx_chains; 3404 3405 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3406 IEEE80211_CHANCTX_SHARED); 3407 if (err) 3408 goto out_unlock; 3409 3410 ieee80211_queue_delayed_work(&sdata->local->hw, 3411 &sdata->deflink.dfs_cac_timer_work, 3412 msecs_to_jiffies(cac_time_ms)); 3413 3414 out_unlock: 3415 mutex_unlock(&local->mtx); 3416 return err; 3417 } 3418 3419 static void ieee80211_end_cac(struct wiphy *wiphy, 3420 struct net_device *dev) 3421 { 3422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3423 struct ieee80211_local *local = sdata->local; 3424 3425 mutex_lock(&local->mtx); 3426 list_for_each_entry(sdata, &local->interfaces, list) { 3427 /* it might be waiting for the local->mtx, but then 3428 * by the time it gets it, sdata->wdev.cac_started 3429 * will no longer be true 3430 */ 3431 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3432 3433 if (sdata->wdev.cac_started) { 3434 ieee80211_link_release_channel(&sdata->deflink); 3435 sdata->wdev.cac_started = false; 3436 } 3437 } 3438 mutex_unlock(&local->mtx); 3439 } 3440 3441 static struct cfg80211_beacon_data * 3442 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3443 { 3444 struct cfg80211_beacon_data *new_beacon; 3445 u8 *pos; 3446 int len; 3447 3448 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3449 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3450 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3451 3452 if (beacon->mbssid_ies) 3453 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3454 beacon->rnr_ies, 3455 beacon->mbssid_ies->cnt); 3456 3457 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3458 if (!new_beacon) 3459 return NULL; 3460 3461 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3462 new_beacon->mbssid_ies = 3463 kzalloc(struct_size(new_beacon->mbssid_ies, 3464 elem, beacon->mbssid_ies->cnt), 3465 GFP_KERNEL); 3466 if (!new_beacon->mbssid_ies) { 3467 kfree(new_beacon); 3468 return NULL; 3469 } 3470 3471 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3472 new_beacon->rnr_ies = 3473 kzalloc(struct_size(new_beacon->rnr_ies, 3474 elem, beacon->rnr_ies->cnt), 3475 GFP_KERNEL); 3476 if (!new_beacon->rnr_ies) { 3477 kfree(new_beacon->mbssid_ies); 3478 kfree(new_beacon); 3479 return NULL; 3480 } 3481 } 3482 } 3483 3484 pos = (u8 *)(new_beacon + 1); 3485 if (beacon->head_len) { 3486 new_beacon->head_len = beacon->head_len; 3487 new_beacon->head = pos; 3488 memcpy(pos, beacon->head, beacon->head_len); 3489 pos += beacon->head_len; 3490 } 3491 if (beacon->tail_len) { 3492 new_beacon->tail_len = beacon->tail_len; 3493 new_beacon->tail = pos; 3494 memcpy(pos, beacon->tail, beacon->tail_len); 3495 pos += beacon->tail_len; 3496 } 3497 if (beacon->beacon_ies_len) { 3498 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3499 new_beacon->beacon_ies = pos; 3500 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3501 pos += beacon->beacon_ies_len; 3502 } 3503 if (beacon->proberesp_ies_len) { 3504 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3505 new_beacon->proberesp_ies = pos; 3506 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3507 pos += beacon->proberesp_ies_len; 3508 } 3509 if (beacon->assocresp_ies_len) { 3510 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3511 new_beacon->assocresp_ies = pos; 3512 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3513 pos += beacon->assocresp_ies_len; 3514 } 3515 if (beacon->probe_resp_len) { 3516 new_beacon->probe_resp_len = beacon->probe_resp_len; 3517 new_beacon->probe_resp = pos; 3518 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3519 pos += beacon->probe_resp_len; 3520 } 3521 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3522 pos += ieee80211_copy_mbssid_beacon(pos, 3523 new_beacon->mbssid_ies, 3524 beacon->mbssid_ies); 3525 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3526 pos += ieee80211_copy_rnr_beacon(pos, 3527 new_beacon->rnr_ies, 3528 beacon->rnr_ies); 3529 } 3530 3531 /* might copy -1, meaning no changes requested */ 3532 new_beacon->ftm_responder = beacon->ftm_responder; 3533 if (beacon->lci) { 3534 new_beacon->lci_len = beacon->lci_len; 3535 new_beacon->lci = pos; 3536 memcpy(pos, beacon->lci, beacon->lci_len); 3537 pos += beacon->lci_len; 3538 } 3539 if (beacon->civicloc) { 3540 new_beacon->civicloc_len = beacon->civicloc_len; 3541 new_beacon->civicloc = pos; 3542 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3543 pos += beacon->civicloc_len; 3544 } 3545 3546 return new_beacon; 3547 } 3548 3549 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3550 { 3551 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3552 struct ieee80211_local *local = sdata->local; 3553 3554 rcu_read_lock(); 3555 3556 if (vif->mbssid_tx_vif == vif) { 3557 /* Trigger ieee80211_csa_finish() on the non-transmitting 3558 * interfaces when channel switch is received on 3559 * transmitting interface 3560 */ 3561 struct ieee80211_sub_if_data *iter; 3562 3563 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3564 if (!ieee80211_sdata_running(iter)) 3565 continue; 3566 3567 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3568 continue; 3569 3570 ieee80211_queue_work(&iter->local->hw, 3571 &iter->deflink.csa_finalize_work); 3572 } 3573 } 3574 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3575 3576 rcu_read_unlock(); 3577 } 3578 EXPORT_SYMBOL(ieee80211_csa_finish); 3579 3580 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3581 { 3582 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3583 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3584 struct ieee80211_local *local = sdata->local; 3585 3586 sdata->deflink.csa_block_tx = block_tx; 3587 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3588 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3589 } 3590 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3591 3592 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3593 u64 *changed) 3594 { 3595 int err; 3596 3597 switch (sdata->vif.type) { 3598 case NL80211_IFTYPE_AP: 3599 if (!sdata->deflink.u.ap.next_beacon) 3600 return -EINVAL; 3601 3602 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3603 sdata->deflink.u.ap.next_beacon, 3604 NULL, NULL); 3605 ieee80211_free_next_beacon(&sdata->deflink); 3606 3607 if (err < 0) 3608 return err; 3609 *changed |= err; 3610 break; 3611 case NL80211_IFTYPE_ADHOC: 3612 err = ieee80211_ibss_finish_csa(sdata); 3613 if (err < 0) 3614 return err; 3615 *changed |= err; 3616 break; 3617 #ifdef CONFIG_MAC80211_MESH 3618 case NL80211_IFTYPE_MESH_POINT: 3619 err = ieee80211_mesh_finish_csa(sdata); 3620 if (err < 0) 3621 return err; 3622 *changed |= err; 3623 break; 3624 #endif 3625 default: 3626 WARN_ON(1); 3627 return -EINVAL; 3628 } 3629 3630 return 0; 3631 } 3632 3633 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3634 { 3635 struct ieee80211_local *local = sdata->local; 3636 u64 changed = 0; 3637 int err; 3638 3639 sdata_assert_lock(sdata); 3640 lockdep_assert_held(&local->mtx); 3641 lockdep_assert_held(&local->chanctx_mtx); 3642 3643 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3644 sdata->vif.bss_conf.eht_puncturing = 3645 sdata->vif.bss_conf.csa_punct_bitmap; 3646 changed |= BSS_CHANGED_EHT_PUNCTURING; 3647 } 3648 3649 /* 3650 * using reservation isn't immediate as it may be deferred until later 3651 * with multi-vif. once reservation is complete it will re-schedule the 3652 * work with no reserved_chanctx so verify chandef to check if it 3653 * completed successfully 3654 */ 3655 3656 if (sdata->deflink.reserved_chanctx) { 3657 /* 3658 * with multi-vif csa driver may call ieee80211_csa_finish() 3659 * many times while waiting for other interfaces to use their 3660 * reservations 3661 */ 3662 if (sdata->deflink.reserved_ready) 3663 return 0; 3664 3665 return ieee80211_link_use_reserved_context(&sdata->deflink); 3666 } 3667 3668 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3669 &sdata->deflink.csa_chandef)) 3670 return -EINVAL; 3671 3672 sdata->vif.bss_conf.csa_active = false; 3673 3674 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3675 if (err) 3676 return err; 3677 3678 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3679 3680 if (sdata->deflink.csa_block_tx) { 3681 ieee80211_wake_vif_queues(local, sdata, 3682 IEEE80211_QUEUE_STOP_REASON_CSA); 3683 sdata->deflink.csa_block_tx = false; 3684 } 3685 3686 err = drv_post_channel_switch(sdata); 3687 if (err) 3688 return err; 3689 3690 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3691 sdata->vif.bss_conf.eht_puncturing); 3692 3693 return 0; 3694 } 3695 3696 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3697 { 3698 if (__ieee80211_csa_finalize(sdata)) { 3699 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3700 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3701 GFP_KERNEL); 3702 } 3703 } 3704 3705 void ieee80211_csa_finalize_work(struct work_struct *work) 3706 { 3707 struct ieee80211_sub_if_data *sdata = 3708 container_of(work, struct ieee80211_sub_if_data, 3709 deflink.csa_finalize_work); 3710 struct ieee80211_local *local = sdata->local; 3711 3712 sdata_lock(sdata); 3713 mutex_lock(&local->mtx); 3714 mutex_lock(&local->chanctx_mtx); 3715 3716 /* AP might have been stopped while waiting for the lock. */ 3717 if (!sdata->vif.bss_conf.csa_active) 3718 goto unlock; 3719 3720 if (!ieee80211_sdata_running(sdata)) 3721 goto unlock; 3722 3723 ieee80211_csa_finalize(sdata); 3724 3725 unlock: 3726 mutex_unlock(&local->chanctx_mtx); 3727 mutex_unlock(&local->mtx); 3728 sdata_unlock(sdata); 3729 } 3730 3731 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3732 struct cfg80211_csa_settings *params, 3733 u32 *changed) 3734 { 3735 struct ieee80211_csa_settings csa = {}; 3736 int err; 3737 3738 switch (sdata->vif.type) { 3739 case NL80211_IFTYPE_AP: 3740 sdata->deflink.u.ap.next_beacon = 3741 cfg80211_beacon_dup(¶ms->beacon_after); 3742 if (!sdata->deflink.u.ap.next_beacon) 3743 return -ENOMEM; 3744 3745 /* 3746 * With a count of 0, we don't have to wait for any 3747 * TBTT before switching, so complete the CSA 3748 * immediately. In theory, with a count == 1 we 3749 * should delay the switch until just before the next 3750 * TBTT, but that would complicate things so we switch 3751 * immediately too. If we would delay the switch 3752 * until the next TBTT, we would have to set the probe 3753 * response here. 3754 * 3755 * TODO: A channel switch with count <= 1 without 3756 * sending a CSA action frame is kind of useless, 3757 * because the clients won't know we're changing 3758 * channels. The action frame must be implemented 3759 * either here or in the userspace. 3760 */ 3761 if (params->count <= 1) 3762 break; 3763 3764 if ((params->n_counter_offsets_beacon > 3765 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3766 (params->n_counter_offsets_presp > 3767 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3768 ieee80211_free_next_beacon(&sdata->deflink); 3769 return -EINVAL; 3770 } 3771 3772 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3773 csa.counter_offsets_presp = params->counter_offsets_presp; 3774 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3775 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3776 csa.count = params->count; 3777 3778 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3779 ¶ms->beacon_csa, &csa, 3780 NULL); 3781 if (err < 0) { 3782 ieee80211_free_next_beacon(&sdata->deflink); 3783 return err; 3784 } 3785 *changed |= err; 3786 3787 break; 3788 case NL80211_IFTYPE_ADHOC: 3789 if (!sdata->vif.cfg.ibss_joined) 3790 return -EINVAL; 3791 3792 if (params->chandef.width != sdata->u.ibss.chandef.width) 3793 return -EINVAL; 3794 3795 switch (params->chandef.width) { 3796 case NL80211_CHAN_WIDTH_40: 3797 if (cfg80211_get_chandef_type(¶ms->chandef) != 3798 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3799 return -EINVAL; 3800 break; 3801 case NL80211_CHAN_WIDTH_5: 3802 case NL80211_CHAN_WIDTH_10: 3803 case NL80211_CHAN_WIDTH_20_NOHT: 3804 case NL80211_CHAN_WIDTH_20: 3805 break; 3806 default: 3807 return -EINVAL; 3808 } 3809 3810 /* changes into another band are not supported */ 3811 if (sdata->u.ibss.chandef.chan->band != 3812 params->chandef.chan->band) 3813 return -EINVAL; 3814 3815 /* see comments in the NL80211_IFTYPE_AP block */ 3816 if (params->count > 1) { 3817 err = ieee80211_ibss_csa_beacon(sdata, params); 3818 if (err < 0) 3819 return err; 3820 *changed |= err; 3821 } 3822 3823 ieee80211_send_action_csa(sdata, params); 3824 3825 break; 3826 #ifdef CONFIG_MAC80211_MESH 3827 case NL80211_IFTYPE_MESH_POINT: { 3828 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3829 3830 /* changes into another band are not supported */ 3831 if (sdata->vif.bss_conf.chandef.chan->band != 3832 params->chandef.chan->band) 3833 return -EINVAL; 3834 3835 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3836 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3837 if (!ifmsh->pre_value) 3838 ifmsh->pre_value = 1; 3839 else 3840 ifmsh->pre_value++; 3841 } 3842 3843 /* see comments in the NL80211_IFTYPE_AP block */ 3844 if (params->count > 1) { 3845 err = ieee80211_mesh_csa_beacon(sdata, params); 3846 if (err < 0) { 3847 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3848 return err; 3849 } 3850 *changed |= err; 3851 } 3852 3853 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3854 ieee80211_send_action_csa(sdata, params); 3855 3856 break; 3857 } 3858 #endif 3859 default: 3860 return -EOPNOTSUPP; 3861 } 3862 3863 return 0; 3864 } 3865 3866 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3867 { 3868 sdata->vif.bss_conf.color_change_active = false; 3869 3870 ieee80211_free_next_beacon(&sdata->deflink); 3871 3872 cfg80211_color_change_aborted_notify(sdata->dev); 3873 } 3874 3875 static int 3876 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3877 struct cfg80211_csa_settings *params) 3878 { 3879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3880 struct ieee80211_local *local = sdata->local; 3881 struct ieee80211_channel_switch ch_switch; 3882 struct ieee80211_chanctx_conf *conf; 3883 struct ieee80211_chanctx *chanctx; 3884 u32 changed = 0; 3885 int err; 3886 3887 sdata_assert_lock(sdata); 3888 lockdep_assert_held(&local->mtx); 3889 3890 if (!list_empty(&local->roc_list) || local->scanning) 3891 return -EBUSY; 3892 3893 if (sdata->wdev.cac_started) 3894 return -EBUSY; 3895 3896 if (cfg80211_chandef_identical(¶ms->chandef, 3897 &sdata->vif.bss_conf.chandef)) 3898 return -EINVAL; 3899 3900 /* don't allow another channel switch if one is already active. */ 3901 if (sdata->vif.bss_conf.csa_active) 3902 return -EBUSY; 3903 3904 mutex_lock(&local->chanctx_mtx); 3905 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3906 lockdep_is_held(&local->chanctx_mtx)); 3907 if (!conf) { 3908 err = -EBUSY; 3909 goto out; 3910 } 3911 3912 if (params->chandef.chan->freq_offset) { 3913 /* this may work, but is untested */ 3914 err = -EOPNOTSUPP; 3915 goto out; 3916 } 3917 3918 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3919 3920 ch_switch.timestamp = 0; 3921 ch_switch.device_timestamp = 0; 3922 ch_switch.block_tx = params->block_tx; 3923 ch_switch.chandef = params->chandef; 3924 ch_switch.count = params->count; 3925 3926 err = drv_pre_channel_switch(sdata, &ch_switch); 3927 if (err) 3928 goto out; 3929 3930 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3931 chanctx->mode, 3932 params->radar_required); 3933 if (err) 3934 goto out; 3935 3936 /* if reservation is invalid then this will fail */ 3937 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3938 if (err) { 3939 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3940 goto out; 3941 } 3942 3943 /* if there is a color change in progress, abort it */ 3944 if (sdata->vif.bss_conf.color_change_active) 3945 ieee80211_color_change_abort(sdata); 3946 3947 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3948 if (err) { 3949 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3950 goto out; 3951 } 3952 3953 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3954 goto out; 3955 3956 sdata->deflink.csa_chandef = params->chandef; 3957 sdata->deflink.csa_block_tx = params->block_tx; 3958 sdata->vif.bss_conf.csa_active = true; 3959 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3960 3961 if (sdata->deflink.csa_block_tx) 3962 ieee80211_stop_vif_queues(local, sdata, 3963 IEEE80211_QUEUE_STOP_REASON_CSA); 3964 3965 cfg80211_ch_switch_started_notify(sdata->dev, 3966 &sdata->deflink.csa_chandef, 0, 3967 params->count, params->block_tx, 3968 sdata->vif.bss_conf.csa_punct_bitmap); 3969 3970 if (changed) { 3971 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3972 changed); 3973 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3974 } else { 3975 /* if the beacon didn't change, we can finalize immediately */ 3976 ieee80211_csa_finalize(sdata); 3977 } 3978 3979 out: 3980 mutex_unlock(&local->chanctx_mtx); 3981 return err; 3982 } 3983 3984 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3985 struct cfg80211_csa_settings *params) 3986 { 3987 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3988 struct ieee80211_local *local = sdata->local; 3989 int err; 3990 3991 mutex_lock(&local->mtx); 3992 err = __ieee80211_channel_switch(wiphy, dev, params); 3993 mutex_unlock(&local->mtx); 3994 3995 return err; 3996 } 3997 3998 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3999 { 4000 lockdep_assert_held(&local->mtx); 4001 4002 local->roc_cookie_counter++; 4003 4004 /* wow, you wrapped 64 bits ... more likely a bug */ 4005 if (WARN_ON(local->roc_cookie_counter == 0)) 4006 local->roc_cookie_counter++; 4007 4008 return local->roc_cookie_counter; 4009 } 4010 4011 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4012 u64 *cookie, gfp_t gfp) 4013 { 4014 unsigned long spin_flags; 4015 struct sk_buff *ack_skb; 4016 int id; 4017 4018 ack_skb = skb_copy(skb, gfp); 4019 if (!ack_skb) 4020 return -ENOMEM; 4021 4022 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4023 id = idr_alloc(&local->ack_status_frames, ack_skb, 4024 1, 0x2000, GFP_ATOMIC); 4025 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4026 4027 if (id < 0) { 4028 kfree_skb(ack_skb); 4029 return -ENOMEM; 4030 } 4031 4032 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4033 4034 *cookie = ieee80211_mgmt_tx_cookie(local); 4035 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4036 4037 return 0; 4038 } 4039 4040 static void 4041 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4042 struct wireless_dev *wdev, 4043 struct mgmt_frame_regs *upd) 4044 { 4045 struct ieee80211_local *local = wiphy_priv(wiphy); 4046 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4047 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4048 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4049 bool global_change, intf_change; 4050 4051 global_change = 4052 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4053 (local->rx_mcast_action_reg != 4054 !!(upd->global_mcast_stypes & action_mask)); 4055 local->probe_req_reg = upd->global_stypes & preq_mask; 4056 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4057 4058 intf_change = (sdata->vif.probe_req_reg != 4059 !!(upd->interface_stypes & preq_mask)) || 4060 (sdata->vif.rx_mcast_action_reg != 4061 !!(upd->interface_mcast_stypes & action_mask)); 4062 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4063 sdata->vif.rx_mcast_action_reg = 4064 upd->interface_mcast_stypes & action_mask; 4065 4066 if (!local->open_count) 4067 return; 4068 4069 if (intf_change && ieee80211_sdata_running(sdata)) 4070 drv_config_iface_filter(local, sdata, 4071 sdata->vif.probe_req_reg ? 4072 FIF_PROBE_REQ : 0, 4073 FIF_PROBE_REQ); 4074 4075 if (global_change) 4076 ieee80211_configure_filter(local); 4077 } 4078 4079 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4080 { 4081 struct ieee80211_local *local = wiphy_priv(wiphy); 4082 4083 if (local->started) 4084 return -EOPNOTSUPP; 4085 4086 return drv_set_antenna(local, tx_ant, rx_ant); 4087 } 4088 4089 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4090 { 4091 struct ieee80211_local *local = wiphy_priv(wiphy); 4092 4093 return drv_get_antenna(local, tx_ant, rx_ant); 4094 } 4095 4096 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4097 struct net_device *dev, 4098 struct cfg80211_gtk_rekey_data *data) 4099 { 4100 struct ieee80211_local *local = wiphy_priv(wiphy); 4101 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4102 4103 if (!local->ops->set_rekey_data) 4104 return -EOPNOTSUPP; 4105 4106 drv_set_rekey_data(local, sdata, data); 4107 4108 return 0; 4109 } 4110 4111 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4112 const u8 *peer, u64 *cookie) 4113 { 4114 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4115 struct ieee80211_local *local = sdata->local; 4116 struct ieee80211_qos_hdr *nullfunc; 4117 struct sk_buff *skb; 4118 int size = sizeof(*nullfunc); 4119 __le16 fc; 4120 bool qos; 4121 struct ieee80211_tx_info *info; 4122 struct sta_info *sta; 4123 struct ieee80211_chanctx_conf *chanctx_conf; 4124 enum nl80211_band band; 4125 int ret; 4126 4127 /* the lock is needed to assign the cookie later */ 4128 mutex_lock(&local->mtx); 4129 4130 rcu_read_lock(); 4131 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4132 if (WARN_ON(!chanctx_conf)) { 4133 ret = -EINVAL; 4134 goto unlock; 4135 } 4136 band = chanctx_conf->def.chan->band; 4137 sta = sta_info_get_bss(sdata, peer); 4138 if (sta) { 4139 qos = sta->sta.wme; 4140 } else { 4141 ret = -ENOLINK; 4142 goto unlock; 4143 } 4144 4145 if (qos) { 4146 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4147 IEEE80211_STYPE_QOS_NULLFUNC | 4148 IEEE80211_FCTL_FROMDS); 4149 } else { 4150 size -= 2; 4151 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4152 IEEE80211_STYPE_NULLFUNC | 4153 IEEE80211_FCTL_FROMDS); 4154 } 4155 4156 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4157 if (!skb) { 4158 ret = -ENOMEM; 4159 goto unlock; 4160 } 4161 4162 skb->dev = dev; 4163 4164 skb_reserve(skb, local->hw.extra_tx_headroom); 4165 4166 nullfunc = skb_put(skb, size); 4167 nullfunc->frame_control = fc; 4168 nullfunc->duration_id = 0; 4169 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4170 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4171 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4172 nullfunc->seq_ctrl = 0; 4173 4174 info = IEEE80211_SKB_CB(skb); 4175 4176 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4177 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4178 info->band = band; 4179 4180 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4181 skb->priority = 7; 4182 if (qos) 4183 nullfunc->qos_ctrl = cpu_to_le16(7); 4184 4185 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4186 if (ret) { 4187 kfree_skb(skb); 4188 goto unlock; 4189 } 4190 4191 local_bh_disable(); 4192 ieee80211_xmit(sdata, sta, skb); 4193 local_bh_enable(); 4194 4195 ret = 0; 4196 unlock: 4197 rcu_read_unlock(); 4198 mutex_unlock(&local->mtx); 4199 4200 return ret; 4201 } 4202 4203 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4204 struct wireless_dev *wdev, 4205 unsigned int link_id, 4206 struct cfg80211_chan_def *chandef) 4207 { 4208 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4209 struct ieee80211_local *local = wiphy_priv(wiphy); 4210 struct ieee80211_chanctx_conf *chanctx_conf; 4211 struct ieee80211_link_data *link; 4212 int ret = -ENODATA; 4213 4214 rcu_read_lock(); 4215 link = rcu_dereference(sdata->link[link_id]); 4216 if (!link) { 4217 ret = -ENOLINK; 4218 goto out; 4219 } 4220 4221 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4222 if (chanctx_conf) { 4223 *chandef = link->conf->chandef; 4224 ret = 0; 4225 } else if (local->open_count > 0 && 4226 local->open_count == local->monitors && 4227 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4228 if (local->use_chanctx) 4229 *chandef = local->monitor_chandef; 4230 else 4231 *chandef = local->_oper_chandef; 4232 ret = 0; 4233 } 4234 out: 4235 rcu_read_unlock(); 4236 4237 return ret; 4238 } 4239 4240 #ifdef CONFIG_PM 4241 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4242 { 4243 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4244 } 4245 #endif 4246 4247 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4248 struct net_device *dev, 4249 struct cfg80211_qos_map *qos_map) 4250 { 4251 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4252 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4253 4254 if (qos_map) { 4255 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4256 if (!new_qos_map) 4257 return -ENOMEM; 4258 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4259 } else { 4260 /* A NULL qos_map was passed to disable QoS mapping */ 4261 new_qos_map = NULL; 4262 } 4263 4264 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4265 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4266 if (old_qos_map) 4267 kfree_rcu(old_qos_map, rcu_head); 4268 4269 return 0; 4270 } 4271 4272 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4273 struct net_device *dev, 4274 unsigned int link_id, 4275 struct cfg80211_chan_def *chandef) 4276 { 4277 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4278 struct ieee80211_link_data *link; 4279 int ret; 4280 u64 changed = 0; 4281 4282 link = sdata_dereference(sdata->link[link_id], sdata); 4283 4284 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4285 if (ret == 0) 4286 ieee80211_link_info_change_notify(sdata, link, changed); 4287 4288 return ret; 4289 } 4290 4291 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4292 u8 tsid, const u8 *peer, u8 up, 4293 u16 admitted_time) 4294 { 4295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4296 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4297 int ac = ieee802_1d_to_ac[up]; 4298 4299 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4300 return -EOPNOTSUPP; 4301 4302 if (!(sdata->wmm_acm & BIT(up))) 4303 return -EINVAL; 4304 4305 if (ifmgd->tx_tspec[ac].admitted_time) 4306 return -EBUSY; 4307 4308 if (admitted_time) { 4309 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4310 ifmgd->tx_tspec[ac].tsid = tsid; 4311 ifmgd->tx_tspec[ac].up = up; 4312 } 4313 4314 return 0; 4315 } 4316 4317 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4318 u8 tsid, const u8 *peer) 4319 { 4320 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4321 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4322 struct ieee80211_local *local = wiphy_priv(wiphy); 4323 int ac; 4324 4325 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4326 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4327 4328 /* skip unused entries */ 4329 if (!tx_tspec->admitted_time) 4330 continue; 4331 4332 if (tx_tspec->tsid != tsid) 4333 continue; 4334 4335 /* due to this new packets will be reassigned to non-ACM ACs */ 4336 tx_tspec->up = -1; 4337 4338 /* Make sure that all packets have been sent to avoid to 4339 * restore the QoS params on packets that are still on the 4340 * queues. 4341 */ 4342 synchronize_net(); 4343 ieee80211_flush_queues(local, sdata, false); 4344 4345 /* restore the normal QoS parameters 4346 * (unconditionally to avoid races) 4347 */ 4348 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4349 tx_tspec->downgraded = false; 4350 ieee80211_sta_handle_tspec_ac_params(sdata); 4351 4352 /* finally clear all the data */ 4353 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4354 4355 return 0; 4356 } 4357 4358 return -ENOENT; 4359 } 4360 4361 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4362 u8 inst_id, 4363 enum nl80211_nan_func_term_reason reason, 4364 gfp_t gfp) 4365 { 4366 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4367 struct cfg80211_nan_func *func; 4368 u64 cookie; 4369 4370 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4371 return; 4372 4373 spin_lock_bh(&sdata->u.nan.func_lock); 4374 4375 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4376 if (WARN_ON(!func)) { 4377 spin_unlock_bh(&sdata->u.nan.func_lock); 4378 return; 4379 } 4380 4381 cookie = func->cookie; 4382 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4383 4384 spin_unlock_bh(&sdata->u.nan.func_lock); 4385 4386 cfg80211_free_nan_func(func); 4387 4388 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4389 reason, cookie, gfp); 4390 } 4391 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4392 4393 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4394 struct cfg80211_nan_match_params *match, 4395 gfp_t gfp) 4396 { 4397 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4398 struct cfg80211_nan_func *func; 4399 4400 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4401 return; 4402 4403 spin_lock_bh(&sdata->u.nan.func_lock); 4404 4405 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4406 if (WARN_ON(!func)) { 4407 spin_unlock_bh(&sdata->u.nan.func_lock); 4408 return; 4409 } 4410 match->cookie = func->cookie; 4411 4412 spin_unlock_bh(&sdata->u.nan.func_lock); 4413 4414 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4415 } 4416 EXPORT_SYMBOL(ieee80211_nan_func_match); 4417 4418 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4419 struct net_device *dev, 4420 const bool enabled) 4421 { 4422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4423 4424 sdata->u.ap.multicast_to_unicast = enabled; 4425 4426 return 0; 4427 } 4428 4429 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4430 struct txq_info *txqi) 4431 { 4432 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4433 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4434 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4435 } 4436 4437 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4438 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4439 txqstats->backlog_packets = txqi->tin.backlog_packets; 4440 } 4441 4442 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4443 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4444 txqstats->flows = txqi->tin.flows; 4445 } 4446 4447 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4448 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4449 txqstats->drops = txqi->cstats.drop_count; 4450 } 4451 4452 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4453 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4454 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4455 } 4456 4457 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4458 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4459 txqstats->overlimit = txqi->tin.overlimit; 4460 } 4461 4462 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4463 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4464 txqstats->collisions = txqi->tin.collisions; 4465 } 4466 4467 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4468 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4469 txqstats->tx_bytes = txqi->tin.tx_bytes; 4470 } 4471 4472 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4473 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4474 txqstats->tx_packets = txqi->tin.tx_packets; 4475 } 4476 } 4477 4478 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4479 struct wireless_dev *wdev, 4480 struct cfg80211_txq_stats *txqstats) 4481 { 4482 struct ieee80211_local *local = wiphy_priv(wiphy); 4483 struct ieee80211_sub_if_data *sdata; 4484 int ret = 0; 4485 4486 spin_lock_bh(&local->fq.lock); 4487 rcu_read_lock(); 4488 4489 if (wdev) { 4490 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4491 if (!sdata->vif.txq) { 4492 ret = 1; 4493 goto out; 4494 } 4495 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4496 } else { 4497 /* phy stats */ 4498 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4499 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4500 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4501 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4502 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4503 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4504 txqstats->backlog_packets = local->fq.backlog; 4505 txqstats->backlog_bytes = local->fq.memory_usage; 4506 txqstats->overlimit = local->fq.overlimit; 4507 txqstats->overmemory = local->fq.overmemory; 4508 txqstats->collisions = local->fq.collisions; 4509 txqstats->max_flows = local->fq.flows_cnt; 4510 } 4511 4512 out: 4513 rcu_read_unlock(); 4514 spin_unlock_bh(&local->fq.lock); 4515 4516 return ret; 4517 } 4518 4519 static int 4520 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4521 struct net_device *dev, 4522 struct cfg80211_ftm_responder_stats *ftm_stats) 4523 { 4524 struct ieee80211_local *local = wiphy_priv(wiphy); 4525 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4526 4527 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4528 } 4529 4530 static int 4531 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4532 struct cfg80211_pmsr_request *request) 4533 { 4534 struct ieee80211_local *local = wiphy_priv(wiphy); 4535 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4536 4537 return drv_start_pmsr(local, sdata, request); 4538 } 4539 4540 static void 4541 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4542 struct cfg80211_pmsr_request *request) 4543 { 4544 struct ieee80211_local *local = wiphy_priv(wiphy); 4545 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4546 4547 return drv_abort_pmsr(local, sdata, request); 4548 } 4549 4550 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4551 struct net_device *dev, 4552 struct cfg80211_tid_config *tid_conf) 4553 { 4554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4555 struct sta_info *sta; 4556 int ret; 4557 4558 if (!sdata->local->ops->set_tid_config) 4559 return -EOPNOTSUPP; 4560 4561 if (!tid_conf->peer) 4562 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4563 4564 mutex_lock(&sdata->local->sta_mtx); 4565 sta = sta_info_get_bss(sdata, tid_conf->peer); 4566 if (!sta) { 4567 mutex_unlock(&sdata->local->sta_mtx); 4568 return -ENOENT; 4569 } 4570 4571 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4572 mutex_unlock(&sdata->local->sta_mtx); 4573 4574 return ret; 4575 } 4576 4577 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4578 struct net_device *dev, 4579 const u8 *peer, u8 tids) 4580 { 4581 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4582 struct sta_info *sta; 4583 int ret; 4584 4585 if (!sdata->local->ops->reset_tid_config) 4586 return -EOPNOTSUPP; 4587 4588 if (!peer) 4589 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4590 4591 mutex_lock(&sdata->local->sta_mtx); 4592 sta = sta_info_get_bss(sdata, peer); 4593 if (!sta) { 4594 mutex_unlock(&sdata->local->sta_mtx); 4595 return -ENOENT; 4596 } 4597 4598 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4599 mutex_unlock(&sdata->local->sta_mtx); 4600 4601 return ret; 4602 } 4603 4604 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4605 struct cfg80211_sar_specs *sar) 4606 { 4607 struct ieee80211_local *local = wiphy_priv(wiphy); 4608 4609 if (!local->ops->set_sar_specs) 4610 return -EOPNOTSUPP; 4611 4612 return local->ops->set_sar_specs(&local->hw, sar); 4613 } 4614 4615 static int 4616 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4617 u32 *changed) 4618 { 4619 switch (sdata->vif.type) { 4620 case NL80211_IFTYPE_AP: { 4621 int ret; 4622 4623 if (!sdata->deflink.u.ap.next_beacon) 4624 return -EINVAL; 4625 4626 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4627 sdata->deflink.u.ap.next_beacon, 4628 NULL, NULL); 4629 ieee80211_free_next_beacon(&sdata->deflink); 4630 4631 if (ret < 0) 4632 return ret; 4633 4634 *changed |= ret; 4635 break; 4636 } 4637 default: 4638 WARN_ON_ONCE(1); 4639 return -EINVAL; 4640 } 4641 4642 return 0; 4643 } 4644 4645 static int 4646 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4647 struct cfg80211_color_change_settings *params, 4648 u32 *changed) 4649 { 4650 struct ieee80211_color_change_settings color_change = {}; 4651 int err; 4652 4653 switch (sdata->vif.type) { 4654 case NL80211_IFTYPE_AP: 4655 sdata->deflink.u.ap.next_beacon = 4656 cfg80211_beacon_dup(¶ms->beacon_next); 4657 if (!sdata->deflink.u.ap.next_beacon) 4658 return -ENOMEM; 4659 4660 if (params->count <= 1) 4661 break; 4662 4663 color_change.counter_offset_beacon = 4664 params->counter_offset_beacon; 4665 color_change.counter_offset_presp = 4666 params->counter_offset_presp; 4667 color_change.count = params->count; 4668 4669 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4670 ¶ms->beacon_color_change, 4671 NULL, &color_change); 4672 if (err < 0) { 4673 ieee80211_free_next_beacon(&sdata->deflink); 4674 return err; 4675 } 4676 *changed |= err; 4677 break; 4678 default: 4679 return -EOPNOTSUPP; 4680 } 4681 4682 return 0; 4683 } 4684 4685 static void 4686 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4687 u8 color, int enable, u32 changed) 4688 { 4689 sdata->vif.bss_conf.he_bss_color.color = color; 4690 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4691 changed |= BSS_CHANGED_HE_BSS_COLOR; 4692 4693 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4694 4695 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4696 struct ieee80211_sub_if_data *child; 4697 4698 mutex_lock(&sdata->local->iflist_mtx); 4699 list_for_each_entry(child, &sdata->local->interfaces, list) { 4700 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4701 child->vif.bss_conf.he_bss_color.color = color; 4702 child->vif.bss_conf.he_bss_color.enabled = enable; 4703 ieee80211_link_info_change_notify(child, 4704 &child->deflink, 4705 BSS_CHANGED_HE_BSS_COLOR); 4706 } 4707 } 4708 mutex_unlock(&sdata->local->iflist_mtx); 4709 } 4710 } 4711 4712 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4713 { 4714 struct ieee80211_local *local = sdata->local; 4715 u32 changed = 0; 4716 int err; 4717 4718 sdata_assert_lock(sdata); 4719 lockdep_assert_held(&local->mtx); 4720 4721 sdata->vif.bss_conf.color_change_active = false; 4722 4723 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4724 if (err) { 4725 cfg80211_color_change_aborted_notify(sdata->dev); 4726 return err; 4727 } 4728 4729 ieee80211_color_change_bss_config_notify(sdata, 4730 sdata->vif.bss_conf.color_change_color, 4731 1, changed); 4732 cfg80211_color_change_notify(sdata->dev); 4733 4734 return 0; 4735 } 4736 4737 void ieee80211_color_change_finalize_work(struct work_struct *work) 4738 { 4739 struct ieee80211_sub_if_data *sdata = 4740 container_of(work, struct ieee80211_sub_if_data, 4741 deflink.color_change_finalize_work); 4742 struct ieee80211_local *local = sdata->local; 4743 4744 sdata_lock(sdata); 4745 mutex_lock(&local->mtx); 4746 4747 /* AP might have been stopped while waiting for the lock. */ 4748 if (!sdata->vif.bss_conf.color_change_active) 4749 goto unlock; 4750 4751 if (!ieee80211_sdata_running(sdata)) 4752 goto unlock; 4753 4754 ieee80211_color_change_finalize(sdata); 4755 4756 unlock: 4757 mutex_unlock(&local->mtx); 4758 sdata_unlock(sdata); 4759 } 4760 4761 void ieee80211_color_collision_detection_work(struct work_struct *work) 4762 { 4763 struct delayed_work *delayed_work = to_delayed_work(work); 4764 struct ieee80211_link_data *link = 4765 container_of(delayed_work, struct ieee80211_link_data, 4766 color_collision_detect_work); 4767 struct ieee80211_sub_if_data *sdata = link->sdata; 4768 4769 sdata_lock(sdata); 4770 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4771 sdata_unlock(sdata); 4772 } 4773 4774 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4775 { 4776 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4777 4778 ieee80211_queue_work(&sdata->local->hw, 4779 &sdata->deflink.color_change_finalize_work); 4780 } 4781 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4782 4783 void 4784 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4785 u64 color_bitmap, gfp_t gfp) 4786 { 4787 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4788 struct ieee80211_link_data *link = &sdata->deflink; 4789 4790 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4791 return; 4792 4793 if (delayed_work_pending(&link->color_collision_detect_work)) 4794 return; 4795 4796 link->color_bitmap = color_bitmap; 4797 /* queue the color collision detection event every 500 ms in order to 4798 * avoid sending too much netlink messages to userspace. 4799 */ 4800 ieee80211_queue_delayed_work(&sdata->local->hw, 4801 &link->color_collision_detect_work, 4802 msecs_to_jiffies(500)); 4803 } 4804 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4805 4806 static int 4807 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4808 struct cfg80211_color_change_settings *params) 4809 { 4810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4811 struct ieee80211_local *local = sdata->local; 4812 u32 changed = 0; 4813 int err; 4814 4815 sdata_assert_lock(sdata); 4816 4817 if (sdata->vif.bss_conf.nontransmitted) 4818 return -EINVAL; 4819 4820 mutex_lock(&local->mtx); 4821 4822 /* don't allow another color change if one is already active or if csa 4823 * is active 4824 */ 4825 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4826 err = -EBUSY; 4827 goto out; 4828 } 4829 4830 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4831 if (err) 4832 goto out; 4833 4834 sdata->vif.bss_conf.color_change_active = true; 4835 sdata->vif.bss_conf.color_change_color = params->color; 4836 4837 cfg80211_color_change_started_notify(sdata->dev, params->count); 4838 4839 if (changed) 4840 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4841 else 4842 /* if the beacon didn't change, we can finalize immediately */ 4843 ieee80211_color_change_finalize(sdata); 4844 4845 out: 4846 mutex_unlock(&local->mtx); 4847 4848 return err; 4849 } 4850 4851 static int 4852 ieee80211_set_radar_background(struct wiphy *wiphy, 4853 struct cfg80211_chan_def *chandef) 4854 { 4855 struct ieee80211_local *local = wiphy_priv(wiphy); 4856 4857 if (!local->ops->set_radar_background) 4858 return -EOPNOTSUPP; 4859 4860 return local->ops->set_radar_background(&local->hw, chandef); 4861 } 4862 4863 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4864 struct wireless_dev *wdev, 4865 unsigned int link_id) 4866 { 4867 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4868 int res; 4869 4870 if (wdev->use_4addr) 4871 return -EOPNOTSUPP; 4872 4873 mutex_lock(&sdata->local->mtx); 4874 res = ieee80211_vif_set_links(sdata, wdev->valid_links); 4875 mutex_unlock(&sdata->local->mtx); 4876 4877 return res; 4878 } 4879 4880 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4881 struct wireless_dev *wdev, 4882 unsigned int link_id) 4883 { 4884 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4885 4886 mutex_lock(&sdata->local->mtx); 4887 ieee80211_vif_set_links(sdata, wdev->valid_links); 4888 mutex_unlock(&sdata->local->mtx); 4889 } 4890 4891 static int sta_add_link_station(struct ieee80211_local *local, 4892 struct ieee80211_sub_if_data *sdata, 4893 struct link_station_parameters *params) 4894 { 4895 struct sta_info *sta; 4896 int ret; 4897 4898 sta = sta_info_get_bss(sdata, params->mld_mac); 4899 if (!sta) 4900 return -ENOENT; 4901 4902 if (!sta->sta.valid_links) 4903 return -EINVAL; 4904 4905 if (sta->sta.valid_links & BIT(params->link_id)) 4906 return -EALREADY; 4907 4908 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4909 if (ret) 4910 return ret; 4911 4912 ret = sta_link_apply_parameters(local, sta, true, params); 4913 if (ret) { 4914 ieee80211_sta_free_link(sta, params->link_id); 4915 return ret; 4916 } 4917 4918 /* ieee80211_sta_activate_link frees the link upon failure */ 4919 return ieee80211_sta_activate_link(sta, params->link_id); 4920 } 4921 4922 static int 4923 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4924 struct link_station_parameters *params) 4925 { 4926 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4927 struct ieee80211_local *local = wiphy_priv(wiphy); 4928 int ret; 4929 4930 mutex_lock(&sdata->local->sta_mtx); 4931 ret = sta_add_link_station(local, sdata, params); 4932 mutex_unlock(&sdata->local->sta_mtx); 4933 4934 return ret; 4935 } 4936 4937 static int sta_mod_link_station(struct ieee80211_local *local, 4938 struct ieee80211_sub_if_data *sdata, 4939 struct link_station_parameters *params) 4940 { 4941 struct sta_info *sta; 4942 4943 sta = sta_info_get_bss(sdata, params->mld_mac); 4944 if (!sta) 4945 return -ENOENT; 4946 4947 if (!(sta->sta.valid_links & BIT(params->link_id))) 4948 return -EINVAL; 4949 4950 return sta_link_apply_parameters(local, sta, false, params); 4951 } 4952 4953 static int 4954 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4955 struct link_station_parameters *params) 4956 { 4957 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4958 struct ieee80211_local *local = wiphy_priv(wiphy); 4959 int ret; 4960 4961 mutex_lock(&sdata->local->sta_mtx); 4962 ret = sta_mod_link_station(local, sdata, params); 4963 mutex_unlock(&sdata->local->sta_mtx); 4964 4965 return ret; 4966 } 4967 4968 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4969 struct link_station_del_parameters *params) 4970 { 4971 struct sta_info *sta; 4972 4973 sta = sta_info_get_bss(sdata, params->mld_mac); 4974 if (!sta) 4975 return -ENOENT; 4976 4977 if (!(sta->sta.valid_links & BIT(params->link_id))) 4978 return -EINVAL; 4979 4980 /* must not create a STA without links */ 4981 if (sta->sta.valid_links == BIT(params->link_id)) 4982 return -EINVAL; 4983 4984 ieee80211_sta_remove_link(sta, params->link_id); 4985 4986 return 0; 4987 } 4988 4989 static int 4990 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4991 struct link_station_del_parameters *params) 4992 { 4993 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4994 int ret; 4995 4996 mutex_lock(&sdata->local->sta_mtx); 4997 ret = sta_del_link_station(sdata, params); 4998 mutex_unlock(&sdata->local->sta_mtx); 4999 5000 return ret; 5001 } 5002 5003 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5004 struct net_device *dev, 5005 struct cfg80211_set_hw_timestamp *hwts) 5006 { 5007 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5008 struct ieee80211_local *local = sdata->local; 5009 5010 if (!local->ops->set_hw_timestamp) 5011 return -EOPNOTSUPP; 5012 5013 if (!check_sdata_in_driver(sdata)) 5014 return -EIO; 5015 5016 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5017 } 5018 5019 const struct cfg80211_ops mac80211_config_ops = { 5020 .add_virtual_intf = ieee80211_add_iface, 5021 .del_virtual_intf = ieee80211_del_iface, 5022 .change_virtual_intf = ieee80211_change_iface, 5023 .start_p2p_device = ieee80211_start_p2p_device, 5024 .stop_p2p_device = ieee80211_stop_p2p_device, 5025 .add_key = ieee80211_add_key, 5026 .del_key = ieee80211_del_key, 5027 .get_key = ieee80211_get_key, 5028 .set_default_key = ieee80211_config_default_key, 5029 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5030 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5031 .start_ap = ieee80211_start_ap, 5032 .change_beacon = ieee80211_change_beacon, 5033 .stop_ap = ieee80211_stop_ap, 5034 .add_station = ieee80211_add_station, 5035 .del_station = ieee80211_del_station, 5036 .change_station = ieee80211_change_station, 5037 .get_station = ieee80211_get_station, 5038 .dump_station = ieee80211_dump_station, 5039 .dump_survey = ieee80211_dump_survey, 5040 #ifdef CONFIG_MAC80211_MESH 5041 .add_mpath = ieee80211_add_mpath, 5042 .del_mpath = ieee80211_del_mpath, 5043 .change_mpath = ieee80211_change_mpath, 5044 .get_mpath = ieee80211_get_mpath, 5045 .dump_mpath = ieee80211_dump_mpath, 5046 .get_mpp = ieee80211_get_mpp, 5047 .dump_mpp = ieee80211_dump_mpp, 5048 .update_mesh_config = ieee80211_update_mesh_config, 5049 .get_mesh_config = ieee80211_get_mesh_config, 5050 .join_mesh = ieee80211_join_mesh, 5051 .leave_mesh = ieee80211_leave_mesh, 5052 #endif 5053 .join_ocb = ieee80211_join_ocb, 5054 .leave_ocb = ieee80211_leave_ocb, 5055 .change_bss = ieee80211_change_bss, 5056 .set_txq_params = ieee80211_set_txq_params, 5057 .set_monitor_channel = ieee80211_set_monitor_channel, 5058 .suspend = ieee80211_suspend, 5059 .resume = ieee80211_resume, 5060 .scan = ieee80211_scan, 5061 .abort_scan = ieee80211_abort_scan, 5062 .sched_scan_start = ieee80211_sched_scan_start, 5063 .sched_scan_stop = ieee80211_sched_scan_stop, 5064 .auth = ieee80211_auth, 5065 .assoc = ieee80211_assoc, 5066 .deauth = ieee80211_deauth, 5067 .disassoc = ieee80211_disassoc, 5068 .join_ibss = ieee80211_join_ibss, 5069 .leave_ibss = ieee80211_leave_ibss, 5070 .set_mcast_rate = ieee80211_set_mcast_rate, 5071 .set_wiphy_params = ieee80211_set_wiphy_params, 5072 .set_tx_power = ieee80211_set_tx_power, 5073 .get_tx_power = ieee80211_get_tx_power, 5074 .rfkill_poll = ieee80211_rfkill_poll, 5075 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5076 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5077 .set_power_mgmt = ieee80211_set_power_mgmt, 5078 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5079 .remain_on_channel = ieee80211_remain_on_channel, 5080 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5081 .mgmt_tx = ieee80211_mgmt_tx, 5082 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5083 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5084 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5085 .update_mgmt_frame_registrations = 5086 ieee80211_update_mgmt_frame_registrations, 5087 .set_antenna = ieee80211_set_antenna, 5088 .get_antenna = ieee80211_get_antenna, 5089 .set_rekey_data = ieee80211_set_rekey_data, 5090 .tdls_oper = ieee80211_tdls_oper, 5091 .tdls_mgmt = ieee80211_tdls_mgmt, 5092 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5093 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5094 .probe_client = ieee80211_probe_client, 5095 .set_noack_map = ieee80211_set_noack_map, 5096 #ifdef CONFIG_PM 5097 .set_wakeup = ieee80211_set_wakeup, 5098 #endif 5099 .get_channel = ieee80211_cfg_get_channel, 5100 .start_radar_detection = ieee80211_start_radar_detection, 5101 .end_cac = ieee80211_end_cac, 5102 .channel_switch = ieee80211_channel_switch, 5103 .set_qos_map = ieee80211_set_qos_map, 5104 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5105 .add_tx_ts = ieee80211_add_tx_ts, 5106 .del_tx_ts = ieee80211_del_tx_ts, 5107 .start_nan = ieee80211_start_nan, 5108 .stop_nan = ieee80211_stop_nan, 5109 .nan_change_conf = ieee80211_nan_change_conf, 5110 .add_nan_func = ieee80211_add_nan_func, 5111 .del_nan_func = ieee80211_del_nan_func, 5112 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5113 .tx_control_port = ieee80211_tx_control_port, 5114 .get_txq_stats = ieee80211_get_txq_stats, 5115 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5116 .start_pmsr = ieee80211_start_pmsr, 5117 .abort_pmsr = ieee80211_abort_pmsr, 5118 .probe_mesh_link = ieee80211_probe_mesh_link, 5119 .set_tid_config = ieee80211_set_tid_config, 5120 .reset_tid_config = ieee80211_reset_tid_config, 5121 .set_sar_specs = ieee80211_set_sar_specs, 5122 .color_change = ieee80211_color_change, 5123 .set_radar_background = ieee80211_set_radar_background, 5124 .add_intf_link = ieee80211_add_intf_link, 5125 .del_intf_link = ieee80211_del_intf_link, 5126 .add_link_station = ieee80211_add_link_station, 5127 .mod_link_station = ieee80211_mod_link_station, 5128 .del_link_station = ieee80211_del_link_station, 5129 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5130 }; 5131