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) 2018-2025 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 && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 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_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_ACTIVE to be changed 96 * while the interface is up. 97 * Else we would need to add a lot of cruft 98 * to update everything: 99 * monitor and all fif_* counters 100 * reconfigure hardware 101 */ 102 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 103 return -EBUSY; 104 } 105 106 /* also validate MU-MIMO change */ 107 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 108 monitor_sdata = sdata; 109 else 110 monitor_sdata = wiphy_dereference(local->hw.wiphy, 111 local->monitor_sdata); 112 113 if (!monitor_sdata && 114 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 115 return -EOPNOTSUPP; 116 117 /* apply all changes now - no failures allowed */ 118 119 if (monitor_sdata && 120 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 121 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))) 122 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 123 124 if (params->flags) { 125 if (ieee80211_sdata_running(sdata)) { 126 ieee80211_adjust_monitor_flags(sdata, -1); 127 sdata->u.mntr.flags = params->flags; 128 ieee80211_adjust_monitor_flags(sdata, 1); 129 130 ieee80211_configure_filter(local); 131 } else { 132 /* 133 * Because the interface is down, ieee80211_do_stop 134 * and ieee80211_do_open take care of "everything" 135 * mentioned in the comment above. 136 */ 137 sdata->u.mntr.flags = params->flags; 138 } 139 } 140 141 return 0; 142 } 143 144 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 145 struct cfg80211_mbssid_config *params, 146 struct ieee80211_bss_conf *link_conf) 147 { 148 struct ieee80211_sub_if_data *tx_sdata; 149 struct ieee80211_bss_conf *old; 150 151 link_conf->bssid_index = 0; 152 link_conf->nontransmitted = false; 153 link_conf->ema_ap = false; 154 link_conf->bssid_indicator = 0; 155 156 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev) 157 return -EINVAL; 158 159 old = sdata_dereference(link_conf->tx_bss_conf, sdata); 160 if (old) 161 return -EALREADY; 162 163 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev); 164 if (!tx_sdata) 165 return -EINVAL; 166 167 if (tx_sdata == sdata) { 168 rcu_assign_pointer(link_conf->tx_bss_conf, link_conf); 169 } else { 170 struct ieee80211_bss_conf *tx_bss_conf; 171 172 tx_bss_conf = sdata_dereference(tx_sdata->vif.link_conf[params->tx_link_id], 173 sdata); 174 if (rcu_access_pointer(tx_bss_conf->tx_bss_conf) != tx_bss_conf) 175 return -EINVAL; 176 177 rcu_assign_pointer(link_conf->tx_bss_conf, tx_bss_conf); 178 179 link_conf->nontransmitted = true; 180 link_conf->bssid_index = params->index; 181 link_conf->bssid_indicator = tx_bss_conf->bssid_indicator; 182 } 183 if (params->ema) 184 link_conf->ema_ap = true; 185 186 return 0; 187 } 188 189 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 190 const char *name, 191 unsigned char name_assign_type, 192 enum nl80211_iftype type, 193 struct vif_params *params) 194 { 195 struct ieee80211_local *local = wiphy_priv(wiphy); 196 struct wireless_dev *wdev; 197 struct ieee80211_sub_if_data *sdata; 198 int err; 199 200 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 201 if (err) 202 return ERR_PTR(err); 203 204 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 205 206 if (type == NL80211_IFTYPE_MONITOR) { 207 err = ieee80211_set_mon_options(sdata, params); 208 if (err) { 209 ieee80211_if_remove(sdata); 210 return NULL; 211 } 212 } 213 214 /* Let the driver know that an interface is going to be added. 215 * Indicate so only for interface types that will be added to the 216 * driver. 217 */ 218 switch (type) { 219 case NL80211_IFTYPE_AP_VLAN: 220 break; 221 case NL80211_IFTYPE_MONITOR: 222 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 223 !(params->flags & MONITOR_FLAG_ACTIVE)) 224 break; 225 fallthrough; 226 default: 227 drv_prep_add_interface(local, 228 ieee80211_vif_type_p2p(&sdata->vif)); 229 break; 230 } 231 232 return wdev; 233 } 234 235 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 236 { 237 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 238 239 return 0; 240 } 241 242 static int ieee80211_change_iface(struct wiphy *wiphy, 243 struct net_device *dev, 244 enum nl80211_iftype type, 245 struct vif_params *params) 246 { 247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 248 struct ieee80211_local *local = sdata->local; 249 struct sta_info *sta; 250 int ret; 251 252 lockdep_assert_wiphy(local->hw.wiphy); 253 254 ret = ieee80211_if_change_type(sdata, type); 255 if (ret) 256 return ret; 257 258 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 259 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 260 ieee80211_check_fast_rx_iface(sdata); 261 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 262 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 263 264 if (params->use_4addr == ifmgd->use_4addr) 265 return 0; 266 267 /* FIXME: no support for 4-addr MLO yet */ 268 if (ieee80211_vif_is_mld(&sdata->vif)) 269 return -EOPNOTSUPP; 270 271 sdata->u.mgd.use_4addr = params->use_4addr; 272 if (!ifmgd->associated) 273 return 0; 274 275 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 276 if (sta) 277 drv_sta_set_4addr(local, sdata, &sta->sta, 278 params->use_4addr); 279 280 if (params->use_4addr) 281 ieee80211_send_4addr_nullfunc(local, sdata); 282 } 283 284 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 285 ret = ieee80211_set_mon_options(sdata, params); 286 if (ret) 287 return ret; 288 } 289 290 return 0; 291 } 292 293 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 294 struct wireless_dev *wdev) 295 { 296 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 297 int ret; 298 299 lockdep_assert_wiphy(sdata->local->hw.wiphy); 300 301 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 302 if (ret < 0) 303 return ret; 304 305 return ieee80211_do_open(wdev, true); 306 } 307 308 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 309 struct wireless_dev *wdev) 310 { 311 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 312 } 313 314 static int ieee80211_start_nan(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf) 317 { 318 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 319 int ret; 320 321 lockdep_assert_wiphy(sdata->local->hw.wiphy); 322 323 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 324 if (ret < 0) 325 return ret; 326 327 ret = ieee80211_do_open(wdev, true); 328 if (ret) 329 return ret; 330 331 ret = drv_start_nan(sdata->local, sdata, conf); 332 if (ret) 333 ieee80211_sdata_stop(sdata); 334 335 sdata->u.nan.conf = *conf; 336 337 return ret; 338 } 339 340 static void ieee80211_stop_nan(struct wiphy *wiphy, 341 struct wireless_dev *wdev) 342 { 343 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 344 345 drv_stop_nan(sdata->local, sdata); 346 ieee80211_sdata_stop(sdata); 347 } 348 349 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 350 struct wireless_dev *wdev, 351 struct cfg80211_nan_conf *conf, 352 u32 changes) 353 { 354 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 355 struct cfg80211_nan_conf new_conf; 356 int ret = 0; 357 358 if (sdata->vif.type != NL80211_IFTYPE_NAN) 359 return -EOPNOTSUPP; 360 361 if (!ieee80211_sdata_running(sdata)) 362 return -ENETDOWN; 363 364 new_conf = sdata->u.nan.conf; 365 366 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 367 new_conf.master_pref = conf->master_pref; 368 369 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 370 new_conf.bands = conf->bands; 371 372 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 373 if (!ret) 374 sdata->u.nan.conf = new_conf; 375 376 return ret; 377 } 378 379 static int ieee80211_add_nan_func(struct wiphy *wiphy, 380 struct wireless_dev *wdev, 381 struct cfg80211_nan_func *nan_func) 382 { 383 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 384 int ret; 385 386 if (sdata->vif.type != NL80211_IFTYPE_NAN) 387 return -EOPNOTSUPP; 388 389 if (!ieee80211_sdata_running(sdata)) 390 return -ENETDOWN; 391 392 spin_lock_bh(&sdata->u.nan.func_lock); 393 394 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 395 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 396 GFP_ATOMIC); 397 spin_unlock_bh(&sdata->u.nan.func_lock); 398 399 if (ret < 0) 400 return ret; 401 402 nan_func->instance_id = ret; 403 404 WARN_ON(nan_func->instance_id == 0); 405 406 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 407 if (ret) { 408 spin_lock_bh(&sdata->u.nan.func_lock); 409 idr_remove(&sdata->u.nan.function_inst_ids, 410 nan_func->instance_id); 411 spin_unlock_bh(&sdata->u.nan.func_lock); 412 } 413 414 return ret; 415 } 416 417 static struct cfg80211_nan_func * 418 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 419 u64 cookie) 420 { 421 struct cfg80211_nan_func *func; 422 int id; 423 424 lockdep_assert_held(&sdata->u.nan.func_lock); 425 426 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 427 if (func->cookie == cookie) 428 return func; 429 } 430 431 return NULL; 432 } 433 434 static void ieee80211_del_nan_func(struct wiphy *wiphy, 435 struct wireless_dev *wdev, u64 cookie) 436 { 437 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 438 struct cfg80211_nan_func *func; 439 u8 instance_id = 0; 440 441 if (sdata->vif.type != NL80211_IFTYPE_NAN || 442 !ieee80211_sdata_running(sdata)) 443 return; 444 445 spin_lock_bh(&sdata->u.nan.func_lock); 446 447 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 448 if (func) 449 instance_id = func->instance_id; 450 451 spin_unlock_bh(&sdata->u.nan.func_lock); 452 453 if (instance_id) 454 drv_del_nan_func(sdata->local, sdata, instance_id); 455 } 456 457 static int ieee80211_set_noack_map(struct wiphy *wiphy, 458 struct net_device *dev, 459 u16 noack_map) 460 { 461 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 462 463 sdata->noack_map = noack_map; 464 465 ieee80211_check_fast_xmit_iface(sdata); 466 467 return 0; 468 } 469 470 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 471 const u8 *mac_addr, u8 key_idx) 472 { 473 struct ieee80211_local *local = sdata->local; 474 struct ieee80211_key *key; 475 struct sta_info *sta; 476 int ret = -EINVAL; 477 478 if (!wiphy_ext_feature_isset(local->hw.wiphy, 479 NL80211_EXT_FEATURE_EXT_KEY_ID)) 480 return -EINVAL; 481 482 sta = sta_info_get_bss(sdata, mac_addr); 483 484 if (!sta) 485 return -EINVAL; 486 487 if (sta->ptk_idx == key_idx) 488 return 0; 489 490 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 491 492 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 493 ret = ieee80211_set_tx_key(key); 494 495 return ret; 496 } 497 498 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 499 int link_id, u8 key_idx, bool pairwise, 500 const u8 *mac_addr, struct key_params *params) 501 { 502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 503 struct ieee80211_link_data *link = 504 ieee80211_link_or_deflink(sdata, link_id, false); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta = NULL; 507 struct ieee80211_key *key; 508 int err; 509 510 lockdep_assert_wiphy(local->hw.wiphy); 511 512 if (!ieee80211_sdata_running(sdata)) 513 return -ENETDOWN; 514 515 if (IS_ERR(link)) 516 return PTR_ERR(link); 517 518 if (WARN_ON(pairwise && link_id >= 0)) 519 return -EINVAL; 520 521 if (pairwise && params->mode == NL80211_KEY_SET_TX) 522 return ieee80211_set_tx(sdata, mac_addr, key_idx); 523 524 /* reject WEP and TKIP keys if WEP failed to initialize */ 525 switch (params->cipher) { 526 case WLAN_CIPHER_SUITE_WEP40: 527 case WLAN_CIPHER_SUITE_TKIP: 528 case WLAN_CIPHER_SUITE_WEP104: 529 if (link_id >= 0) 530 return -EINVAL; 531 if (WARN_ON_ONCE(fips_enabled)) 532 return -EINVAL; 533 break; 534 default: 535 break; 536 } 537 538 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 539 params->key, params->seq_len, params->seq); 540 if (IS_ERR(key)) 541 return PTR_ERR(key); 542 543 if (pairwise) { 544 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 545 key->conf.link_id = -1; 546 } else { 547 key->conf.link_id = link->link_id; 548 } 549 550 if (params->mode == NL80211_KEY_NO_TX) 551 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 552 553 if (mac_addr) { 554 sta = sta_info_get_bss(sdata, mac_addr); 555 /* 556 * The ASSOC test makes sure the driver is ready to 557 * receive the key. When wpa_supplicant has roamed 558 * using FT, it attempts to set the key before 559 * association has completed, this rejects that attempt 560 * so it will set the key again after association. 561 * 562 * TODO: accept the key if we have a station entry and 563 * add it to the device after the station. 564 */ 565 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 566 ieee80211_key_free_unused(key); 567 return -ENOENT; 568 } 569 } 570 571 switch (sdata->vif.type) { 572 case NL80211_IFTYPE_STATION: 573 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 574 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 575 break; 576 case NL80211_IFTYPE_AP: 577 case NL80211_IFTYPE_AP_VLAN: 578 /* Keys without a station are used for TX only */ 579 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 580 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 581 break; 582 case NL80211_IFTYPE_ADHOC: 583 /* no MFP (yet) */ 584 break; 585 case NL80211_IFTYPE_MESH_POINT: 586 #ifdef CONFIG_MAC80211_MESH 587 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 588 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 589 break; 590 #endif 591 case NL80211_IFTYPE_WDS: 592 case NL80211_IFTYPE_MONITOR: 593 case NL80211_IFTYPE_P2P_DEVICE: 594 case NL80211_IFTYPE_NAN: 595 case NL80211_IFTYPE_UNSPECIFIED: 596 case NUM_NL80211_IFTYPES: 597 case NL80211_IFTYPE_P2P_CLIENT: 598 case NL80211_IFTYPE_P2P_GO: 599 case NL80211_IFTYPE_OCB: 600 /* shouldn't happen */ 601 WARN_ON_ONCE(1); 602 break; 603 } 604 605 err = ieee80211_key_link(key, link, sta); 606 /* KRACK protection, shouldn't happen but just silently accept key */ 607 if (err == -EALREADY) 608 err = 0; 609 610 return err; 611 } 612 613 static struct ieee80211_key * 614 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 615 u8 key_idx, bool pairwise, const u8 *mac_addr) 616 { 617 struct ieee80211_local *local __maybe_unused = sdata->local; 618 struct ieee80211_link_data *link = &sdata->deflink; 619 struct ieee80211_key *key; 620 621 if (link_id >= 0) { 622 link = sdata_dereference(sdata->link[link_id], sdata); 623 if (!link) 624 return NULL; 625 } 626 627 if (mac_addr) { 628 struct sta_info *sta; 629 struct link_sta_info *link_sta; 630 631 sta = sta_info_get_bss(sdata, mac_addr); 632 if (!sta) 633 return NULL; 634 635 if (link_id >= 0) { 636 link_sta = rcu_dereference_check(sta->link[link_id], 637 lockdep_is_held(&local->hw.wiphy->mtx)); 638 if (!link_sta) 639 return NULL; 640 } else { 641 link_sta = &sta->deflink; 642 } 643 644 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 645 return wiphy_dereference(local->hw.wiphy, 646 sta->ptk[key_idx]); 647 648 if (!pairwise && 649 key_idx < NUM_DEFAULT_KEYS + 650 NUM_DEFAULT_MGMT_KEYS + 651 NUM_DEFAULT_BEACON_KEYS) 652 return wiphy_dereference(local->hw.wiphy, 653 link_sta->gtk[key_idx]); 654 655 return NULL; 656 } 657 658 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 659 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 660 661 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 662 if (key) 663 return key; 664 665 /* or maybe it was a WEP key */ 666 if (key_idx < NUM_DEFAULT_KEYS) 667 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 668 669 return NULL; 670 } 671 672 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 673 int link_id, u8 key_idx, bool pairwise, 674 const u8 *mac_addr) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 struct ieee80211_local *local = sdata->local; 678 struct ieee80211_key *key; 679 680 lockdep_assert_wiphy(local->hw.wiphy); 681 682 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 683 if (!key) 684 return -ENOENT; 685 686 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 687 688 return 0; 689 } 690 691 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 692 int link_id, u8 key_idx, bool pairwise, 693 const u8 *mac_addr, void *cookie, 694 void (*callback)(void *cookie, 695 struct key_params *params)) 696 { 697 struct ieee80211_sub_if_data *sdata; 698 u8 seq[6] = {0}; 699 struct key_params params; 700 struct ieee80211_key *key; 701 u64 pn64; 702 u32 iv32; 703 u16 iv16; 704 int err = -ENOENT; 705 struct ieee80211_key_seq kseq = {}; 706 707 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 708 709 rcu_read_lock(); 710 711 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 712 if (!key) 713 goto out; 714 715 memset(¶ms, 0, sizeof(params)); 716 717 params.cipher = key->conf.cipher; 718 719 switch (key->conf.cipher) { 720 case WLAN_CIPHER_SUITE_TKIP: 721 pn64 = atomic64_read(&key->conf.tx_pn); 722 iv32 = TKIP_PN_TO_IV32(pn64); 723 iv16 = TKIP_PN_TO_IV16(pn64); 724 725 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 726 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 727 drv_get_key_seq(sdata->local, key, &kseq); 728 iv32 = kseq.tkip.iv32; 729 iv16 = kseq.tkip.iv16; 730 } 731 732 seq[0] = iv16 & 0xff; 733 seq[1] = (iv16 >> 8) & 0xff; 734 seq[2] = iv32 & 0xff; 735 seq[3] = (iv32 >> 8) & 0xff; 736 seq[4] = (iv32 >> 16) & 0xff; 737 seq[5] = (iv32 >> 24) & 0xff; 738 params.seq = seq; 739 params.seq_len = 6; 740 break; 741 case WLAN_CIPHER_SUITE_CCMP: 742 case WLAN_CIPHER_SUITE_CCMP_256: 743 case WLAN_CIPHER_SUITE_AES_CMAC: 744 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 745 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 746 offsetof(typeof(kseq), aes_cmac)); 747 fallthrough; 748 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 749 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 750 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 751 offsetof(typeof(kseq), aes_gmac)); 752 fallthrough; 753 case WLAN_CIPHER_SUITE_GCMP: 754 case WLAN_CIPHER_SUITE_GCMP_256: 755 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 756 offsetof(typeof(kseq), gcmp)); 757 758 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 759 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 760 drv_get_key_seq(sdata->local, key, &kseq); 761 memcpy(seq, kseq.ccmp.pn, 6); 762 } else { 763 pn64 = atomic64_read(&key->conf.tx_pn); 764 seq[0] = pn64; 765 seq[1] = pn64 >> 8; 766 seq[2] = pn64 >> 16; 767 seq[3] = pn64 >> 24; 768 seq[4] = pn64 >> 32; 769 seq[5] = pn64 >> 40; 770 } 771 params.seq = seq; 772 params.seq_len = 6; 773 break; 774 default: 775 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 776 break; 777 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 778 break; 779 drv_get_key_seq(sdata->local, key, &kseq); 780 params.seq = kseq.hw.seq; 781 params.seq_len = kseq.hw.seq_len; 782 break; 783 } 784 785 callback(cookie, ¶ms); 786 err = 0; 787 788 out: 789 rcu_read_unlock(); 790 return err; 791 } 792 793 static int ieee80211_config_default_key(struct wiphy *wiphy, 794 struct net_device *dev, 795 int link_id, u8 key_idx, bool uni, 796 bool multi) 797 { 798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 799 struct ieee80211_link_data *link = 800 ieee80211_link_or_deflink(sdata, link_id, false); 801 802 if (IS_ERR(link)) 803 return PTR_ERR(link); 804 805 ieee80211_set_default_key(link, key_idx, uni, multi); 806 807 return 0; 808 } 809 810 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 811 struct net_device *dev, 812 int link_id, u8 key_idx) 813 { 814 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 815 struct ieee80211_link_data *link = 816 ieee80211_link_or_deflink(sdata, link_id, true); 817 818 if (IS_ERR(link)) 819 return PTR_ERR(link); 820 821 ieee80211_set_default_mgmt_key(link, key_idx); 822 823 return 0; 824 } 825 826 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 827 struct net_device *dev, 828 int link_id, u8 key_idx) 829 { 830 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 831 struct ieee80211_link_data *link = 832 ieee80211_link_or_deflink(sdata, link_id, true); 833 834 if (IS_ERR(link)) 835 return PTR_ERR(link); 836 837 ieee80211_set_default_beacon_key(link, key_idx); 838 839 return 0; 840 } 841 842 void sta_set_rate_info_tx(struct sta_info *sta, 843 const struct ieee80211_tx_rate *rate, 844 struct rate_info *rinfo) 845 { 846 rinfo->flags = 0; 847 if (rate->flags & IEEE80211_TX_RC_MCS) { 848 rinfo->flags |= RATE_INFO_FLAGS_MCS; 849 rinfo->mcs = rate->idx; 850 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 851 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 852 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 853 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 854 } else { 855 struct ieee80211_supported_band *sband; 856 857 sband = ieee80211_get_sband(sta->sdata); 858 WARN_ON_ONCE(sband && !sband->bitrates); 859 if (sband && sband->bitrates) 860 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 861 } 862 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 863 rinfo->bw = RATE_INFO_BW_40; 864 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 865 rinfo->bw = RATE_INFO_BW_80; 866 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 867 rinfo->bw = RATE_INFO_BW_160; 868 else 869 rinfo->bw = RATE_INFO_BW_20; 870 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 871 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 872 } 873 874 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 875 int idx, u8 *mac, struct station_info *sinfo) 876 { 877 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 878 struct ieee80211_local *local = sdata->local; 879 struct sta_info *sta; 880 int ret = -ENOENT; 881 882 lockdep_assert_wiphy(local->hw.wiphy); 883 884 sta = sta_info_get_by_idx(sdata, idx); 885 if (sta) { 886 ret = 0; 887 memcpy(mac, sta->sta.addr, ETH_ALEN); 888 sta_set_sinfo(sta, sinfo, true); 889 890 /* Add accumulated removed link data to sinfo data for 891 * consistency for MLO 892 */ 893 if (sinfo->valid_links) 894 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 895 896 } 897 898 return ret; 899 } 900 901 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 902 int idx, struct survey_info *survey) 903 { 904 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 905 906 return drv_get_survey(local, idx, survey); 907 } 908 909 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 910 const u8 *mac, struct station_info *sinfo) 911 { 912 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 913 struct ieee80211_local *local = sdata->local; 914 struct sta_info *sta; 915 int ret = -ENOENT; 916 917 lockdep_assert_wiphy(local->hw.wiphy); 918 919 sta = sta_info_get_bss(sdata, mac); 920 if (sta) { 921 ret = 0; 922 sta_set_sinfo(sta, sinfo, true); 923 924 /* Add accumulated removed link data to sinfo data for 925 * consistency for MLO 926 */ 927 if (sinfo->valid_links) 928 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 929 } 930 931 return ret; 932 } 933 934 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 935 struct net_device *dev, 936 struct cfg80211_chan_def *chandef) 937 { 938 struct ieee80211_local *local = wiphy_priv(wiphy); 939 struct ieee80211_sub_if_data *sdata; 940 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 941 int ret; 942 943 lockdep_assert_wiphy(local->hw.wiphy); 944 945 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 946 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 947 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 948 &chanreq.oper)) 949 return 0; 950 951 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 952 if (!sdata) 953 goto done; 954 } 955 956 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 957 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 958 &chanreq.oper)) 959 return 0; 960 961 ieee80211_link_release_channel(&sdata->deflink); 962 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 963 IEEE80211_CHANCTX_SHARED); 964 if (ret) 965 return ret; 966 done: 967 local->monitor_chanreq = chanreq; 968 return 0; 969 } 970 971 static int 972 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 973 const u8 *resp, size_t resp_len, 974 const struct ieee80211_csa_settings *csa, 975 const struct ieee80211_color_change_settings *cca, 976 struct ieee80211_link_data *link) 977 { 978 struct probe_resp *new, *old; 979 980 if (!resp || !resp_len) 981 return 1; 982 983 old = sdata_dereference(link->u.ap.probe_resp, sdata); 984 985 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 986 if (!new) 987 return -ENOMEM; 988 989 new->len = resp_len; 990 memcpy(new->data, resp, resp_len); 991 992 if (csa) 993 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 994 csa->n_counter_offsets_presp * 995 sizeof(new->cntdwn_counter_offsets[0])); 996 else if (cca) 997 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 998 999 rcu_assign_pointer(link->u.ap.probe_resp, new); 1000 if (old) 1001 kfree_rcu(old, rcu_head); 1002 1003 return 0; 1004 } 1005 1006 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 1007 struct cfg80211_fils_discovery *params, 1008 struct ieee80211_link_data *link, 1009 struct ieee80211_bss_conf *link_conf, 1010 u64 *changed) 1011 { 1012 struct fils_discovery_data *new, *old = NULL; 1013 struct ieee80211_fils_discovery *fd; 1014 1015 if (!params->update) 1016 return 0; 1017 1018 fd = &link_conf->fils_discovery; 1019 fd->min_interval = params->min_interval; 1020 fd->max_interval = params->max_interval; 1021 1022 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 1023 if (old) 1024 kfree_rcu(old, rcu_head); 1025 1026 if (params->tmpl && params->tmpl_len) { 1027 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1028 if (!new) 1029 return -ENOMEM; 1030 new->len = params->tmpl_len; 1031 memcpy(new->data, params->tmpl, params->tmpl_len); 1032 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1033 } else { 1034 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1035 } 1036 1037 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1038 return 0; 1039 } 1040 1041 static int 1042 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1043 struct cfg80211_unsol_bcast_probe_resp *params, 1044 struct ieee80211_link_data *link, 1045 struct ieee80211_bss_conf *link_conf, 1046 u64 *changed) 1047 { 1048 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1049 1050 if (!params->update) 1051 return 0; 1052 1053 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1054 1055 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1056 if (old) 1057 kfree_rcu(old, rcu_head); 1058 1059 if (params->tmpl && params->tmpl_len) { 1060 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1061 if (!new) 1062 return -ENOMEM; 1063 new->len = params->tmpl_len; 1064 memcpy(new->data, params->tmpl, params->tmpl_len); 1065 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1066 } else { 1067 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1068 } 1069 1070 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1071 return 0; 1072 } 1073 1074 static int ieee80211_set_ftm_responder_params( 1075 struct ieee80211_sub_if_data *sdata, 1076 const u8 *lci, size_t lci_len, 1077 const u8 *civicloc, size_t civicloc_len, 1078 struct ieee80211_bss_conf *link_conf) 1079 { 1080 struct ieee80211_ftm_responder_params *new, *old; 1081 u8 *pos; 1082 int len; 1083 1084 if (!lci_len && !civicloc_len) 1085 return 0; 1086 1087 old = link_conf->ftmr_params; 1088 len = lci_len + civicloc_len; 1089 1090 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1091 if (!new) 1092 return -ENOMEM; 1093 1094 pos = (u8 *)(new + 1); 1095 if (lci_len) { 1096 new->lci_len = lci_len; 1097 new->lci = pos; 1098 memcpy(pos, lci, lci_len); 1099 pos += lci_len; 1100 } 1101 1102 if (civicloc_len) { 1103 new->civicloc_len = civicloc_len; 1104 new->civicloc = pos; 1105 memcpy(pos, civicloc, civicloc_len); 1106 pos += civicloc_len; 1107 } 1108 1109 link_conf->ftmr_params = new; 1110 kfree(old); 1111 1112 return 0; 1113 } 1114 1115 static int 1116 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1117 struct cfg80211_mbssid_elems *src) 1118 { 1119 int i, offset = 0; 1120 1121 dst->cnt = src->cnt; 1122 for (i = 0; i < src->cnt; i++) { 1123 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1124 dst->elem[i].len = src->elem[i].len; 1125 dst->elem[i].data = pos + offset; 1126 offset += dst->elem[i].len; 1127 } 1128 1129 return offset; 1130 } 1131 1132 static int 1133 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1134 struct cfg80211_rnr_elems *src) 1135 { 1136 int i, offset = 0; 1137 1138 for (i = 0; i < src->cnt; i++) { 1139 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1140 dst->elem[i].len = src->elem[i].len; 1141 dst->elem[i].data = pos + offset; 1142 offset += dst->elem[i].len; 1143 } 1144 dst->cnt = src->cnt; 1145 1146 return offset; 1147 } 1148 1149 static int 1150 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1151 struct ieee80211_link_data *link, 1152 struct cfg80211_beacon_data *params, 1153 const struct ieee80211_csa_settings *csa, 1154 const struct ieee80211_color_change_settings *cca, 1155 u64 *changed) 1156 { 1157 struct cfg80211_mbssid_elems *mbssid = NULL; 1158 struct cfg80211_rnr_elems *rnr = NULL; 1159 struct beacon_data *new, *old; 1160 int new_head_len, new_tail_len; 1161 int size, err; 1162 u64 _changed = BSS_CHANGED_BEACON; 1163 struct ieee80211_bss_conf *link_conf = link->conf; 1164 1165 old = sdata_dereference(link->u.ap.beacon, sdata); 1166 1167 /* Need to have a beacon head if we don't have one yet */ 1168 if (!params->head && !old) 1169 return -EINVAL; 1170 1171 /* new or old head? */ 1172 if (params->head) 1173 new_head_len = params->head_len; 1174 else 1175 new_head_len = old->head_len; 1176 1177 /* new or old tail? */ 1178 if (params->tail || !old) 1179 /* params->tail_len will be zero for !params->tail */ 1180 new_tail_len = params->tail_len; 1181 else 1182 new_tail_len = old->tail_len; 1183 1184 size = sizeof(*new) + new_head_len + new_tail_len; 1185 1186 /* new or old multiple BSSID elements? */ 1187 if (params->mbssid_ies) { 1188 mbssid = params->mbssid_ies; 1189 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1190 if (params->rnr_ies) { 1191 rnr = params->rnr_ies; 1192 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1193 } 1194 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1195 mbssid->cnt); 1196 } else if (old && old->mbssid_ies) { 1197 mbssid = old->mbssid_ies; 1198 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1199 if (old && old->rnr_ies) { 1200 rnr = old->rnr_ies; 1201 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1202 } 1203 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1204 mbssid->cnt); 1205 } 1206 1207 new = kzalloc(size, GFP_KERNEL); 1208 if (!new) 1209 return -ENOMEM; 1210 1211 /* start filling the new info now */ 1212 1213 /* 1214 * pointers go into the block we allocated, 1215 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1216 */ 1217 new->head = ((u8 *) new) + sizeof(*new); 1218 new->tail = new->head + new_head_len; 1219 new->head_len = new_head_len; 1220 new->tail_len = new_tail_len; 1221 /* copy in optional mbssid_ies */ 1222 if (mbssid) { 1223 u8 *pos = new->tail + new->tail_len; 1224 1225 new->mbssid_ies = (void *)pos; 1226 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1227 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1228 mbssid); 1229 if (rnr) { 1230 new->rnr_ies = (void *)pos; 1231 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1232 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1233 } 1234 /* update bssid_indicator */ 1235 if (new->mbssid_ies->cnt && new->mbssid_ies->elem[0].len > 2) 1236 link_conf->bssid_indicator = 1237 *(new->mbssid_ies->elem[0].data + 2); 1238 else 1239 link_conf->bssid_indicator = 0; 1240 } 1241 1242 if (csa) { 1243 new->cntdwn_current_counter = csa->count; 1244 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1245 csa->n_counter_offsets_beacon * 1246 sizeof(new->cntdwn_counter_offsets[0])); 1247 } else if (cca) { 1248 new->cntdwn_current_counter = cca->count; 1249 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1250 } 1251 1252 /* copy in head */ 1253 if (params->head) 1254 memcpy(new->head, params->head, new_head_len); 1255 else 1256 memcpy(new->head, old->head, new_head_len); 1257 1258 /* copy in optional tail */ 1259 if (params->tail) 1260 memcpy(new->tail, params->tail, new_tail_len); 1261 else 1262 if (old) 1263 memcpy(new->tail, old->tail, new_tail_len); 1264 1265 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1266 params->probe_resp_len, csa, cca, link); 1267 if (err < 0) { 1268 kfree(new); 1269 return err; 1270 } 1271 if (err == 0) 1272 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1273 1274 if (params->ftm_responder != -1) { 1275 link_conf->ftm_responder = params->ftm_responder; 1276 err = ieee80211_set_ftm_responder_params(sdata, 1277 params->lci, 1278 params->lci_len, 1279 params->civicloc, 1280 params->civicloc_len, 1281 link_conf); 1282 1283 if (err < 0) { 1284 kfree(new); 1285 return err; 1286 } 1287 1288 _changed |= BSS_CHANGED_FTM_RESPONDER; 1289 } 1290 1291 rcu_assign_pointer(link->u.ap.beacon, new); 1292 sdata->u.ap.active = true; 1293 1294 if (old) 1295 kfree_rcu(old, rcu_head); 1296 1297 *changed |= _changed; 1298 return 0; 1299 } 1300 1301 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1302 { 1303 struct ieee80211_link_data *link; 1304 u8 link_id, num = 0; 1305 1306 if (sdata->vif.type != NL80211_IFTYPE_AP && 1307 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1308 return num; 1309 1310 /* non-MLO mode of operation also uses link_id 0 in sdata so it is 1311 * safe to directly proceed with the below loop 1312 */ 1313 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1314 link = sdata_dereference(sdata->link[link_id], sdata); 1315 if (!link) 1316 continue; 1317 1318 if (sdata_dereference(link->u.ap.beacon, sdata)) 1319 num++; 1320 } 1321 1322 return num; 1323 } 1324 1325 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1326 struct cfg80211_ap_settings *params) 1327 { 1328 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1329 struct ieee80211_local *local = sdata->local; 1330 struct beacon_data *old; 1331 struct ieee80211_sub_if_data *vlan; 1332 u64 changed = BSS_CHANGED_BEACON_INT | 1333 BSS_CHANGED_BEACON_ENABLED | 1334 BSS_CHANGED_BEACON | 1335 BSS_CHANGED_P2P_PS | 1336 BSS_CHANGED_TXPOWER | 1337 BSS_CHANGED_TWT; 1338 int i, err; 1339 int prev_beacon_int; 1340 unsigned int link_id = params->beacon.link_id; 1341 struct ieee80211_link_data *link; 1342 struct ieee80211_bss_conf *link_conf; 1343 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1344 1345 lockdep_assert_wiphy(local->hw.wiphy); 1346 1347 link = sdata_dereference(sdata->link[link_id], sdata); 1348 if (!link) 1349 return -ENOLINK; 1350 1351 link_conf = link->conf; 1352 1353 old = sdata_dereference(link->u.ap.beacon, sdata); 1354 if (old) 1355 return -EALREADY; 1356 1357 link->smps_mode = IEEE80211_SMPS_OFF; 1358 1359 link->needed_rx_chains = sdata->local->rx_chains; 1360 1361 prev_beacon_int = link_conf->beacon_int; 1362 link_conf->beacon_int = params->beacon_interval; 1363 1364 if (params->ht_cap) 1365 link_conf->ht_ldpc = 1366 params->ht_cap->cap_info & 1367 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1368 1369 if (params->vht_cap) { 1370 link_conf->vht_ldpc = 1371 params->vht_cap->vht_cap_info & 1372 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1373 link_conf->vht_su_beamformer = 1374 params->vht_cap->vht_cap_info & 1375 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1376 link_conf->vht_su_beamformee = 1377 params->vht_cap->vht_cap_info & 1378 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1379 link_conf->vht_mu_beamformer = 1380 params->vht_cap->vht_cap_info & 1381 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1382 link_conf->vht_mu_beamformee = 1383 params->vht_cap->vht_cap_info & 1384 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1385 } 1386 1387 if (params->he_cap && params->he_oper) { 1388 link_conf->he_support = true; 1389 link_conf->htc_trig_based_pkt_ext = 1390 le32_get_bits(params->he_oper->he_oper_params, 1391 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1392 link_conf->frame_time_rts_th = 1393 le32_get_bits(params->he_oper->he_oper_params, 1394 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1395 changed |= BSS_CHANGED_HE_OBSS_PD; 1396 1397 if (params->beacon.he_bss_color.enabled) 1398 changed |= BSS_CHANGED_HE_BSS_COLOR; 1399 } 1400 1401 if (params->he_cap) { 1402 link_conf->he_ldpc = 1403 params->he_cap->phy_cap_info[1] & 1404 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1405 link_conf->he_su_beamformer = 1406 params->he_cap->phy_cap_info[3] & 1407 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1408 link_conf->he_su_beamformee = 1409 params->he_cap->phy_cap_info[4] & 1410 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1411 link_conf->he_mu_beamformer = 1412 params->he_cap->phy_cap_info[4] & 1413 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1414 link_conf->he_full_ul_mumimo = 1415 params->he_cap->phy_cap_info[2] & 1416 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1417 } 1418 1419 if (params->eht_cap) { 1420 if (!link_conf->he_support) 1421 return -EOPNOTSUPP; 1422 1423 link_conf->eht_support = true; 1424 1425 link_conf->eht_su_beamformer = 1426 params->eht_cap->fixed.phy_cap_info[0] & 1427 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1428 link_conf->eht_su_beamformee = 1429 params->eht_cap->fixed.phy_cap_info[0] & 1430 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1431 link_conf->eht_mu_beamformer = 1432 params->eht_cap->fixed.phy_cap_info[7] & 1433 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1434 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1435 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1436 link_conf->eht_80mhz_full_bw_ul_mumimo = 1437 params->eht_cap->fixed.phy_cap_info[7] & 1438 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1439 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1440 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1441 link_conf->eht_disable_mcs15 = 1442 u8_get_bits(params->eht_oper->params, 1443 IEEE80211_EHT_OPER_MCS15_DISABLE); 1444 } else { 1445 link_conf->eht_su_beamformer = false; 1446 link_conf->eht_su_beamformee = false; 1447 link_conf->eht_mu_beamformer = false; 1448 } 1449 1450 if (sdata->vif.type == NL80211_IFTYPE_AP && 1451 params->mbssid_config.tx_wdev) { 1452 err = ieee80211_set_ap_mbssid_options(sdata, 1453 ¶ms->mbssid_config, 1454 link_conf); 1455 if (err) 1456 return err; 1457 } 1458 1459 err = ieee80211_link_use_channel(link, &chanreq, 1460 IEEE80211_CHANCTX_SHARED); 1461 if (!err) 1462 ieee80211_link_copy_chanctx_to_vlans(link, false); 1463 if (err) { 1464 link_conf->beacon_int = prev_beacon_int; 1465 return err; 1466 } 1467 1468 /* 1469 * Apply control port protocol, this allows us to 1470 * not encrypt dynamic WEP control frames. 1471 */ 1472 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1473 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1474 sdata->control_port_over_nl80211 = 1475 params->crypto.control_port_over_nl80211; 1476 sdata->control_port_no_preauth = 1477 params->crypto.control_port_no_preauth; 1478 1479 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1480 vlan->control_port_protocol = 1481 params->crypto.control_port_ethertype; 1482 vlan->control_port_no_encrypt = 1483 params->crypto.control_port_no_encrypt; 1484 vlan->control_port_over_nl80211 = 1485 params->crypto.control_port_over_nl80211; 1486 vlan->control_port_no_preauth = 1487 params->crypto.control_port_no_preauth; 1488 } 1489 1490 link_conf->dtim_period = params->dtim_period; 1491 link_conf->enable_beacon = true; 1492 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1493 link_conf->twt_responder = params->twt_responder; 1494 link_conf->he_obss_pd = params->he_obss_pd; 1495 link_conf->he_bss_color = params->beacon.he_bss_color; 1496 sdata->vif.cfg.s1g = params->chandef.chan->band == 1497 NL80211_BAND_S1GHZ; 1498 1499 sdata->vif.cfg.ssid_len = params->ssid_len; 1500 if (params->ssid_len) 1501 memcpy(sdata->vif.cfg.ssid, params->ssid, 1502 params->ssid_len); 1503 link_conf->hidden_ssid = 1504 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1505 1506 memset(&link_conf->p2p_noa_attr, 0, 1507 sizeof(link_conf->p2p_noa_attr)); 1508 link_conf->p2p_noa_attr.oppps_ctwindow = 1509 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1510 if (params->p2p_opp_ps) 1511 link_conf->p2p_noa_attr.oppps_ctwindow |= 1512 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1513 1514 sdata->beacon_rate_set = false; 1515 if (wiphy_ext_feature_isset(local->hw.wiphy, 1516 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1517 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1518 sdata->beacon_rateidx_mask[i] = 1519 params->beacon_rate.control[i].legacy; 1520 if (sdata->beacon_rateidx_mask[i]) 1521 sdata->beacon_rate_set = true; 1522 } 1523 } 1524 1525 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1526 link_conf->beacon_tx_rate = params->beacon_rate; 1527 1528 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1529 &changed); 1530 if (err < 0) 1531 goto error; 1532 1533 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1534 link, link_conf, &changed); 1535 if (err < 0) 1536 goto error; 1537 1538 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1539 ¶ms->unsol_bcast_probe_resp, 1540 link, link_conf, &changed); 1541 if (err < 0) 1542 goto error; 1543 1544 err = drv_start_ap(sdata->local, sdata, link_conf); 1545 if (err) { 1546 old = sdata_dereference(link->u.ap.beacon, sdata); 1547 1548 if (old) 1549 kfree_rcu(old, rcu_head); 1550 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1551 1552 if (ieee80211_num_beaconing_links(sdata) == 0) 1553 sdata->u.ap.active = false; 1554 1555 goto error; 1556 } 1557 1558 ieee80211_recalc_dtim(local, sdata); 1559 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1560 ieee80211_link_info_change_notify(sdata, link, changed); 1561 1562 if (ieee80211_num_beaconing_links(sdata) <= 1) 1563 netif_carrier_on(dev); 1564 1565 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1566 netif_carrier_on(vlan->dev); 1567 1568 return 0; 1569 1570 error: 1571 ieee80211_link_release_channel(link); 1572 1573 return err; 1574 } 1575 1576 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1577 struct cfg80211_ap_update *params) 1578 1579 { 1580 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1581 struct ieee80211_link_data *link; 1582 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1583 struct beacon_data *old; 1584 int err; 1585 struct ieee80211_bss_conf *link_conf; 1586 u64 changed = 0; 1587 1588 lockdep_assert_wiphy(wiphy); 1589 1590 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1591 if (!link) 1592 return -ENOLINK; 1593 1594 link_conf = link->conf; 1595 1596 /* don't allow changing the beacon while a countdown is in place - offset 1597 * of channel switch counter may change 1598 */ 1599 if (link_conf->csa_active || link_conf->color_change_active) 1600 return -EBUSY; 1601 1602 old = sdata_dereference(link->u.ap.beacon, sdata); 1603 if (!old) 1604 return -ENOENT; 1605 1606 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1607 &changed); 1608 if (err < 0) 1609 return err; 1610 1611 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1612 link, link_conf, &changed); 1613 if (err < 0) 1614 return err; 1615 1616 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1617 ¶ms->unsol_bcast_probe_resp, 1618 link, link_conf, &changed); 1619 if (err < 0) 1620 return err; 1621 1622 if (beacon->he_bss_color_valid && 1623 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1624 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1625 changed |= BSS_CHANGED_HE_BSS_COLOR; 1626 } 1627 1628 ieee80211_link_info_change_notify(sdata, link, changed); 1629 return 0; 1630 } 1631 1632 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1633 { 1634 if (!link->u.ap.next_beacon) 1635 return; 1636 1637 kfree(link->u.ap.next_beacon->mbssid_ies); 1638 kfree(link->u.ap.next_beacon->rnr_ies); 1639 kfree(link->u.ap.next_beacon); 1640 link->u.ap.next_beacon = NULL; 1641 } 1642 1643 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1644 unsigned int link_id) 1645 { 1646 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1647 struct ieee80211_sub_if_data *vlan; 1648 struct ieee80211_local *local = sdata->local; 1649 struct beacon_data *old_beacon; 1650 struct probe_resp *old_probe_resp; 1651 struct fils_discovery_data *old_fils_discovery; 1652 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1653 struct cfg80211_chan_def chandef; 1654 struct ieee80211_link_data *link = 1655 sdata_dereference(sdata->link[link_id], sdata); 1656 struct ieee80211_bss_conf *link_conf = link->conf; 1657 LIST_HEAD(keys); 1658 1659 lockdep_assert_wiphy(local->hw.wiphy); 1660 1661 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1662 if (!old_beacon) 1663 return -ENOENT; 1664 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1665 sdata); 1666 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1667 sdata); 1668 old_unsol_bcast_probe_resp = 1669 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1670 sdata); 1671 1672 /* abort any running channel switch or color change */ 1673 link_conf->csa_active = false; 1674 link_conf->color_change_active = false; 1675 ieee80211_vif_unblock_queues_csa(sdata); 1676 1677 ieee80211_free_next_beacon(link); 1678 1679 /* turn off carrier for this interface and dependent VLANs */ 1680 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1681 netif_carrier_off(vlan->dev); 1682 1683 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1684 netif_carrier_off(dev); 1685 sdata->u.ap.active = false; 1686 } 1687 1688 /* remove beacon and probe response */ 1689 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1690 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1691 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1692 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1693 kfree_rcu(old_beacon, rcu_head); 1694 if (old_probe_resp) 1695 kfree_rcu(old_probe_resp, rcu_head); 1696 if (old_fils_discovery) 1697 kfree_rcu(old_fils_discovery, rcu_head); 1698 if (old_unsol_bcast_probe_resp) 1699 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1700 1701 kfree(link_conf->ftmr_params); 1702 link_conf->ftmr_params = NULL; 1703 1704 link_conf->bssid_index = 0; 1705 link_conf->nontransmitted = false; 1706 link_conf->ema_ap = false; 1707 link_conf->bssid_indicator = 0; 1708 1709 __sta_info_flush(sdata, true, link_id, NULL); 1710 1711 ieee80211_remove_link_keys(link, &keys); 1712 if (!list_empty(&keys)) { 1713 synchronize_net(); 1714 ieee80211_free_key_list(local, &keys); 1715 } 1716 1717 ieee80211_stop_mbssid(sdata); 1718 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL); 1719 1720 link_conf->enable_beacon = false; 1721 sdata->beacon_rate_set = false; 1722 sdata->vif.cfg.ssid_len = 0; 1723 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1724 ieee80211_link_info_change_notify(sdata, link, 1725 BSS_CHANGED_BEACON_ENABLED); 1726 1727 if (sdata->wdev.links[link_id].cac_started) { 1728 chandef = link_conf->chanreq.oper; 1729 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1730 cfg80211_cac_event(sdata->dev, &chandef, 1731 NL80211_RADAR_CAC_ABORTED, 1732 GFP_KERNEL, link_id); 1733 } 1734 1735 drv_stop_ap(sdata->local, sdata, link_conf); 1736 1737 /* free all potentially still buffered bcast frames */ 1738 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1739 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1740 1741 ieee80211_link_copy_chanctx_to_vlans(link, true); 1742 ieee80211_link_release_channel(link); 1743 1744 return 0; 1745 } 1746 1747 static int sta_apply_auth_flags(struct ieee80211_local *local, 1748 struct sta_info *sta, 1749 u32 mask, u32 set) 1750 { 1751 int ret; 1752 1753 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1754 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1755 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1756 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1757 if (ret) 1758 return ret; 1759 } 1760 1761 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1762 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1763 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1764 /* 1765 * When peer becomes associated, init rate control as 1766 * well. Some drivers require rate control initialized 1767 * before drv_sta_state() is called. 1768 */ 1769 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1770 rate_control_rate_init_all_links(sta); 1771 1772 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1773 if (ret) 1774 return ret; 1775 } 1776 1777 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1778 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1779 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1780 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1781 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1782 else 1783 ret = 0; 1784 if (ret) 1785 return ret; 1786 } 1787 1788 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1789 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1790 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1791 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1792 if (ret) 1793 return ret; 1794 } 1795 1796 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1797 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1798 test_sta_flag(sta, WLAN_STA_AUTH)) { 1799 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1800 if (ret) 1801 return ret; 1802 } 1803 1804 return 0; 1805 } 1806 1807 static void sta_apply_mesh_params(struct ieee80211_local *local, 1808 struct sta_info *sta, 1809 struct station_parameters *params) 1810 { 1811 #ifdef CONFIG_MAC80211_MESH 1812 struct ieee80211_sub_if_data *sdata = sta->sdata; 1813 u64 changed = 0; 1814 1815 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1816 switch (params->plink_state) { 1817 case NL80211_PLINK_ESTAB: 1818 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1819 changed = mesh_plink_inc_estab_count(sdata); 1820 sta->mesh->plink_state = params->plink_state; 1821 sta->mesh->aid = params->peer_aid; 1822 1823 ieee80211_mps_sta_status_update(sta); 1824 changed |= ieee80211_mps_set_sta_local_pm(sta, 1825 sdata->u.mesh.mshcfg.power_mode); 1826 1827 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1828 /* init at low value */ 1829 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1830 1831 break; 1832 case NL80211_PLINK_LISTEN: 1833 case NL80211_PLINK_BLOCKED: 1834 case NL80211_PLINK_OPN_SNT: 1835 case NL80211_PLINK_OPN_RCVD: 1836 case NL80211_PLINK_CNF_RCVD: 1837 case NL80211_PLINK_HOLDING: 1838 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1839 changed = mesh_plink_dec_estab_count(sdata); 1840 sta->mesh->plink_state = params->plink_state; 1841 1842 ieee80211_mps_sta_status_update(sta); 1843 changed |= ieee80211_mps_set_sta_local_pm(sta, 1844 NL80211_MESH_POWER_UNKNOWN); 1845 break; 1846 default: 1847 /* nothing */ 1848 break; 1849 } 1850 } 1851 1852 switch (params->plink_action) { 1853 case NL80211_PLINK_ACTION_NO_ACTION: 1854 /* nothing */ 1855 break; 1856 case NL80211_PLINK_ACTION_OPEN: 1857 changed |= mesh_plink_open(sta); 1858 break; 1859 case NL80211_PLINK_ACTION_BLOCK: 1860 changed |= mesh_plink_block(sta); 1861 break; 1862 } 1863 1864 if (params->local_pm) 1865 changed |= ieee80211_mps_set_sta_local_pm(sta, 1866 params->local_pm); 1867 1868 ieee80211_mbss_info_change_notify(sdata, changed); 1869 #endif 1870 } 1871 1872 enum sta_link_apply_mode { 1873 STA_LINK_MODE_NEW, 1874 STA_LINK_MODE_STA_MODIFY, 1875 STA_LINK_MODE_LINK_MODIFY, 1876 }; 1877 1878 static int sta_link_apply_parameters(struct ieee80211_local *local, 1879 struct sta_info *sta, 1880 enum sta_link_apply_mode mode, 1881 struct link_station_parameters *params) 1882 { 1883 struct ieee80211_supported_band *sband; 1884 struct ieee80211_sub_if_data *sdata = sta->sdata; 1885 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1886 struct ieee80211_link_data *link = 1887 sdata_dereference(sdata->link[link_id], sdata); 1888 struct link_sta_info *link_sta = 1889 rcu_dereference_protected(sta->link[link_id], 1890 lockdep_is_held(&local->hw.wiphy->mtx)); 1891 bool changes = params->link_mac || 1892 params->txpwr_set || 1893 params->supported_rates_len || 1894 params->ht_capa || 1895 params->vht_capa || 1896 params->he_capa || 1897 params->eht_capa || 1898 params->s1g_capa || 1899 params->opmode_notif_used; 1900 1901 switch (mode) { 1902 case STA_LINK_MODE_NEW: 1903 if (!params->link_mac) 1904 return -EINVAL; 1905 break; 1906 case STA_LINK_MODE_LINK_MODIFY: 1907 break; 1908 case STA_LINK_MODE_STA_MODIFY: 1909 if (params->link_id >= 0) 1910 break; 1911 if (!changes) 1912 return 0; 1913 break; 1914 } 1915 1916 if (!link || !link_sta) 1917 return -EINVAL; 1918 1919 sband = ieee80211_get_link_sband(link); 1920 if (!sband) 1921 return -EINVAL; 1922 1923 if (params->link_mac) { 1924 if (mode == STA_LINK_MODE_NEW) { 1925 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1926 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1927 } else if (!ether_addr_equal(link_sta->addr, 1928 params->link_mac)) { 1929 return -EINVAL; 1930 } 1931 } 1932 1933 if (params->txpwr_set) { 1934 int ret; 1935 1936 link_sta->pub->txpwr.type = params->txpwr.type; 1937 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1938 link_sta->pub->txpwr.power = params->txpwr.power; 1939 ret = drv_sta_set_txpwr(local, sdata, sta); 1940 if (ret) 1941 return ret; 1942 } 1943 1944 if (params->supported_rates && 1945 params->supported_rates_len && 1946 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1947 sband, params->supported_rates, 1948 params->supported_rates_len, 1949 &link_sta->pub->supp_rates[sband->band])) 1950 return -EINVAL; 1951 1952 if (params->ht_capa) 1953 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1954 params->ht_capa, link_sta); 1955 1956 /* VHT can override some HT caps such as the A-MSDU max length */ 1957 if (params->vht_capa) 1958 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1959 params->vht_capa, NULL, 1960 link_sta); 1961 1962 if (params->he_capa) 1963 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1964 (void *)params->he_capa, 1965 params->he_capa_len, 1966 (void *)params->he_6ghz_capa, 1967 link_sta); 1968 1969 if (params->he_capa && params->eht_capa) 1970 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1971 (u8 *)params->he_capa, 1972 params->he_capa_len, 1973 params->eht_capa, 1974 params->eht_capa_len, 1975 link_sta); 1976 1977 if (params->s1g_capa) 1978 ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa, 1979 link_sta); 1980 1981 ieee80211_sta_init_nss(link_sta); 1982 1983 if (params->opmode_notif_used) { 1984 enum nl80211_chan_width width = link->conf->chanreq.oper.width; 1985 1986 switch (width) { 1987 case NL80211_CHAN_WIDTH_20: 1988 case NL80211_CHAN_WIDTH_40: 1989 case NL80211_CHAN_WIDTH_80: 1990 case NL80211_CHAN_WIDTH_160: 1991 case NL80211_CHAN_WIDTH_80P80: 1992 case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */ 1993 break; 1994 default: 1995 return -EINVAL; 1996 } 1997 1998 /* returned value is only needed for rc update, but the 1999 * rc isn't initialized here yet, so ignore it 2000 */ 2001 __ieee80211_vht_handle_opmode(sdata, link_sta, 2002 params->opmode_notif, 2003 sband->band); 2004 } 2005 2006 return 0; 2007 } 2008 2009 static int sta_apply_parameters(struct ieee80211_local *local, 2010 struct sta_info *sta, 2011 struct station_parameters *params) 2012 { 2013 struct ieee80211_sub_if_data *sdata = sta->sdata; 2014 u32 mask, set; 2015 int ret = 0; 2016 2017 mask = params->sta_flags_mask; 2018 set = params->sta_flags_set; 2019 2020 if (ieee80211_vif_is_mesh(&sdata->vif)) { 2021 /* 2022 * In mesh mode, ASSOCIATED isn't part of the nl80211 2023 * API but must follow AUTHENTICATED for driver state. 2024 */ 2025 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2026 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2027 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2028 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2029 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2030 /* 2031 * TDLS -- everything follows authorized, but 2032 * only becoming authorized is possible, not 2033 * going back 2034 */ 2035 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2036 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2037 BIT(NL80211_STA_FLAG_ASSOCIATED); 2038 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2039 BIT(NL80211_STA_FLAG_ASSOCIATED); 2040 } 2041 } 2042 2043 if (mask & BIT(NL80211_STA_FLAG_WME) && 2044 local->hw.queues >= IEEE80211_NUM_ACS) 2045 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 2046 2047 /* auth flags will be set later for TDLS, 2048 * and for unassociated stations that move to associated */ 2049 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2050 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 2051 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2052 ret = sta_apply_auth_flags(local, sta, mask, set); 2053 if (ret) 2054 return ret; 2055 } 2056 2057 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2058 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2059 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2060 else 2061 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2062 } 2063 2064 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2065 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2066 if (set & BIT(NL80211_STA_FLAG_MFP)) 2067 set_sta_flag(sta, WLAN_STA_MFP); 2068 else 2069 clear_sta_flag(sta, WLAN_STA_MFP); 2070 } 2071 2072 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2073 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2074 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2075 else 2076 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2077 } 2078 2079 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2080 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2081 2082 /* mark TDLS channel switch support, if the AP allows it */ 2083 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2084 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2085 params->ext_capab_len >= 4 && 2086 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2087 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2088 2089 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2090 !sdata->u.mgd.tdls_wider_bw_prohibited && 2091 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2092 params->ext_capab_len >= 8 && 2093 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2094 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2095 2096 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2097 sta->sta.uapsd_queues = params->uapsd_queues; 2098 sta->sta.max_sp = params->max_sp; 2099 } 2100 2101 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2102 params->ext_capab_len); 2103 2104 /* 2105 * cfg80211 validates this (1-2007) and allows setting the AID 2106 * only when creating a new station entry 2107 */ 2108 if (params->aid) 2109 sta->sta.aid = params->aid; 2110 2111 /* 2112 * Some of the following updates would be racy if called on an 2113 * existing station, via ieee80211_change_station(). However, 2114 * all such changes are rejected by cfg80211 except for updates 2115 * changing the supported rates on an existing but not yet used 2116 * TDLS peer. 2117 */ 2118 2119 if (params->listen_interval >= 0) 2120 sta->listen_interval = params->listen_interval; 2121 2122 if (params->eml_cap_present) 2123 sta->sta.eml_cap = params->eml_cap; 2124 2125 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2126 ¶ms->link_sta_params); 2127 if (ret) 2128 return ret; 2129 2130 if (params->support_p2p_ps >= 0) 2131 sta->sta.support_p2p_ps = params->support_p2p_ps; 2132 2133 if (ieee80211_vif_is_mesh(&sdata->vif)) 2134 sta_apply_mesh_params(local, sta, params); 2135 2136 if (params->airtime_weight) 2137 sta->airtime_weight = params->airtime_weight; 2138 2139 /* set the STA state after all sta info from usermode has been set */ 2140 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2141 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2142 ret = sta_apply_auth_flags(local, sta, mask, set); 2143 if (ret) 2144 return ret; 2145 } 2146 2147 /* Mark the STA as MLO if MLD MAC address is available */ 2148 if (params->link_sta_params.mld_mac) 2149 sta->sta.mlo = true; 2150 2151 return 0; 2152 } 2153 2154 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2155 const u8 *mac, 2156 struct station_parameters *params) 2157 { 2158 struct ieee80211_local *local = wiphy_priv(wiphy); 2159 struct sta_info *sta; 2160 struct ieee80211_sub_if_data *sdata; 2161 int err; 2162 2163 lockdep_assert_wiphy(local->hw.wiphy); 2164 2165 if (params->vlan) { 2166 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2167 2168 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2169 sdata->vif.type != NL80211_IFTYPE_AP) 2170 return -EINVAL; 2171 } else 2172 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2173 2174 if (ether_addr_equal(mac, sdata->vif.addr)) 2175 return -EINVAL; 2176 2177 if (!is_valid_ether_addr(mac)) 2178 return -EINVAL; 2179 2180 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2181 sdata->vif.type == NL80211_IFTYPE_STATION && 2182 !sdata->u.mgd.associated) 2183 return -EINVAL; 2184 2185 /* 2186 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2187 * but we need to have a link_mac in that case as well, so use the 2188 * STA's MAC address in that case. 2189 */ 2190 if (params->link_sta_params.link_id >= 0) 2191 sta = sta_info_alloc_with_link(sdata, mac, 2192 params->link_sta_params.link_id, 2193 params->link_sta_params.link_mac ?: mac, 2194 GFP_KERNEL); 2195 else 2196 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2197 2198 if (!sta) 2199 return -ENOMEM; 2200 2201 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2202 sta->sta.tdls = true; 2203 2204 /* Though the mutex is not needed here (since the station is not 2205 * visible yet), sta_apply_parameters (and inner functions) require 2206 * the mutex due to other paths. 2207 */ 2208 err = sta_apply_parameters(local, sta, params); 2209 if (err) { 2210 sta_info_free(local, sta); 2211 return err; 2212 } 2213 2214 /* 2215 * for TDLS and for unassociated station, rate control should be 2216 * initialized only when rates are known and station is marked 2217 * authorized/associated 2218 */ 2219 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2220 test_sta_flag(sta, WLAN_STA_ASSOC)) 2221 rate_control_rate_init_all_links(sta); 2222 2223 return sta_info_insert(sta); 2224 } 2225 2226 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2227 struct station_del_parameters *params) 2228 { 2229 struct ieee80211_sub_if_data *sdata; 2230 2231 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2232 2233 if (params->mac) 2234 return sta_info_destroy_addr_bss(sdata, params->mac); 2235 2236 sta_info_flush(sdata, params->link_id); 2237 return 0; 2238 } 2239 2240 static int ieee80211_change_station(struct wiphy *wiphy, 2241 struct net_device *dev, const u8 *mac, 2242 struct station_parameters *params) 2243 { 2244 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2245 struct ieee80211_local *local = wiphy_priv(wiphy); 2246 struct sta_info *sta; 2247 struct ieee80211_sub_if_data *vlansdata; 2248 enum cfg80211_station_type statype; 2249 int err; 2250 2251 lockdep_assert_wiphy(local->hw.wiphy); 2252 2253 sta = sta_info_get_bss(sdata, mac); 2254 if (!sta) 2255 return -ENOENT; 2256 2257 switch (sdata->vif.type) { 2258 case NL80211_IFTYPE_MESH_POINT: 2259 if (sdata->u.mesh.user_mpm) 2260 statype = CFG80211_STA_MESH_PEER_USER; 2261 else 2262 statype = CFG80211_STA_MESH_PEER_KERNEL; 2263 break; 2264 case NL80211_IFTYPE_ADHOC: 2265 statype = CFG80211_STA_IBSS; 2266 break; 2267 case NL80211_IFTYPE_STATION: 2268 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2269 statype = CFG80211_STA_AP_STA; 2270 break; 2271 } 2272 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2273 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2274 else 2275 statype = CFG80211_STA_TDLS_PEER_SETUP; 2276 break; 2277 case NL80211_IFTYPE_AP: 2278 case NL80211_IFTYPE_AP_VLAN: 2279 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2280 statype = CFG80211_STA_AP_CLIENT; 2281 else 2282 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2283 break; 2284 default: 2285 return -EOPNOTSUPP; 2286 } 2287 2288 err = cfg80211_check_station_change(wiphy, params, statype); 2289 if (err) 2290 return err; 2291 2292 if (params->vlan && params->vlan != sta->sdata->dev) { 2293 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2294 2295 if (params->vlan->ieee80211_ptr->use_4addr) { 2296 if (vlansdata->u.vlan.sta) 2297 return -EBUSY; 2298 2299 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2300 __ieee80211_check_fast_rx_iface(vlansdata); 2301 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2302 } 2303 2304 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2305 sta->sdata->u.vlan.sta) 2306 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2307 2308 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2309 ieee80211_vif_dec_num_mcast(sta->sdata); 2310 2311 sta->sdata = vlansdata; 2312 ieee80211_check_fast_rx(sta); 2313 ieee80211_check_fast_xmit(sta); 2314 2315 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2316 ieee80211_vif_inc_num_mcast(sta->sdata); 2317 cfg80211_send_layer2_update(sta->sdata->dev, 2318 sta->sta.addr); 2319 } 2320 } 2321 2322 err = sta_apply_parameters(local, sta, params); 2323 if (err) 2324 return err; 2325 2326 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2327 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2328 ieee80211_recalc_ps(local); 2329 ieee80211_recalc_ps_vif(sdata); 2330 } 2331 2332 return 0; 2333 } 2334 2335 #ifdef CONFIG_MAC80211_MESH 2336 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2337 const u8 *dst, const u8 *next_hop) 2338 { 2339 struct ieee80211_sub_if_data *sdata; 2340 struct mesh_path *mpath; 2341 struct sta_info *sta; 2342 2343 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2344 2345 rcu_read_lock(); 2346 sta = sta_info_get(sdata, next_hop); 2347 if (!sta) { 2348 rcu_read_unlock(); 2349 return -ENOENT; 2350 } 2351 2352 mpath = mesh_path_add(sdata, dst); 2353 if (IS_ERR(mpath)) { 2354 rcu_read_unlock(); 2355 return PTR_ERR(mpath); 2356 } 2357 2358 mesh_path_fix_nexthop(mpath, sta); 2359 2360 rcu_read_unlock(); 2361 return 0; 2362 } 2363 2364 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2365 const u8 *dst) 2366 { 2367 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2368 2369 if (dst) 2370 return mesh_path_del(sdata, dst); 2371 2372 mesh_path_flush_by_iface(sdata); 2373 return 0; 2374 } 2375 2376 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2377 const u8 *dst, const u8 *next_hop) 2378 { 2379 struct ieee80211_sub_if_data *sdata; 2380 struct mesh_path *mpath; 2381 struct sta_info *sta; 2382 2383 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2384 2385 rcu_read_lock(); 2386 2387 sta = sta_info_get(sdata, next_hop); 2388 if (!sta) { 2389 rcu_read_unlock(); 2390 return -ENOENT; 2391 } 2392 2393 mpath = mesh_path_lookup(sdata, dst); 2394 if (!mpath) { 2395 rcu_read_unlock(); 2396 return -ENOENT; 2397 } 2398 2399 mesh_path_fix_nexthop(mpath, sta); 2400 2401 rcu_read_unlock(); 2402 return 0; 2403 } 2404 2405 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2406 struct mpath_info *pinfo) 2407 { 2408 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2409 2410 if (next_hop_sta) 2411 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2412 else 2413 eth_zero_addr(next_hop); 2414 2415 memset(pinfo, 0, sizeof(*pinfo)); 2416 2417 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2418 2419 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2420 MPATH_INFO_SN | 2421 MPATH_INFO_METRIC | 2422 MPATH_INFO_EXPTIME | 2423 MPATH_INFO_DISCOVERY_TIMEOUT | 2424 MPATH_INFO_DISCOVERY_RETRIES | 2425 MPATH_INFO_FLAGS | 2426 MPATH_INFO_HOP_COUNT | 2427 MPATH_INFO_PATH_CHANGE; 2428 2429 pinfo->frame_qlen = mpath->frame_queue.qlen; 2430 pinfo->sn = mpath->sn; 2431 pinfo->metric = mpath->metric; 2432 if (time_before(jiffies, mpath->exp_time)) 2433 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2434 pinfo->discovery_timeout = 2435 jiffies_to_msecs(mpath->discovery_timeout); 2436 pinfo->discovery_retries = mpath->discovery_retries; 2437 if (mpath->flags & MESH_PATH_ACTIVE) 2438 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2439 if (mpath->flags & MESH_PATH_RESOLVING) 2440 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2441 if (mpath->flags & MESH_PATH_SN_VALID) 2442 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2443 if (mpath->flags & MESH_PATH_FIXED) 2444 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2445 if (mpath->flags & MESH_PATH_RESOLVED) 2446 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2447 pinfo->hop_count = mpath->hop_count; 2448 pinfo->path_change_count = mpath->path_change_count; 2449 } 2450 2451 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2452 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2453 2454 { 2455 struct ieee80211_sub_if_data *sdata; 2456 struct mesh_path *mpath; 2457 2458 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2459 2460 rcu_read_lock(); 2461 mpath = mesh_path_lookup(sdata, dst); 2462 if (!mpath) { 2463 rcu_read_unlock(); 2464 return -ENOENT; 2465 } 2466 memcpy(dst, mpath->dst, ETH_ALEN); 2467 mpath_set_pinfo(mpath, next_hop, pinfo); 2468 rcu_read_unlock(); 2469 return 0; 2470 } 2471 2472 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2473 int idx, u8 *dst, u8 *next_hop, 2474 struct mpath_info *pinfo) 2475 { 2476 struct ieee80211_sub_if_data *sdata; 2477 struct mesh_path *mpath; 2478 2479 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2480 2481 rcu_read_lock(); 2482 mpath = mesh_path_lookup_by_idx(sdata, idx); 2483 if (!mpath) { 2484 rcu_read_unlock(); 2485 return -ENOENT; 2486 } 2487 memcpy(dst, mpath->dst, ETH_ALEN); 2488 mpath_set_pinfo(mpath, next_hop, pinfo); 2489 rcu_read_unlock(); 2490 return 0; 2491 } 2492 2493 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2494 struct mpath_info *pinfo) 2495 { 2496 memset(pinfo, 0, sizeof(*pinfo)); 2497 memcpy(mpp, mpath->mpp, ETH_ALEN); 2498 2499 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2500 } 2501 2502 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2503 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2504 2505 { 2506 struct ieee80211_sub_if_data *sdata; 2507 struct mesh_path *mpath; 2508 2509 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2510 2511 rcu_read_lock(); 2512 mpath = mpp_path_lookup(sdata, dst); 2513 if (!mpath) { 2514 rcu_read_unlock(); 2515 return -ENOENT; 2516 } 2517 memcpy(dst, mpath->dst, ETH_ALEN); 2518 mpp_set_pinfo(mpath, mpp, pinfo); 2519 rcu_read_unlock(); 2520 return 0; 2521 } 2522 2523 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2524 int idx, u8 *dst, u8 *mpp, 2525 struct mpath_info *pinfo) 2526 { 2527 struct ieee80211_sub_if_data *sdata; 2528 struct mesh_path *mpath; 2529 2530 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2531 2532 rcu_read_lock(); 2533 mpath = mpp_path_lookup_by_idx(sdata, idx); 2534 if (!mpath) { 2535 rcu_read_unlock(); 2536 return -ENOENT; 2537 } 2538 memcpy(dst, mpath->dst, ETH_ALEN); 2539 mpp_set_pinfo(mpath, mpp, pinfo); 2540 rcu_read_unlock(); 2541 return 0; 2542 } 2543 2544 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2545 struct net_device *dev, 2546 struct mesh_config *conf) 2547 { 2548 struct ieee80211_sub_if_data *sdata; 2549 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2550 2551 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2552 return 0; 2553 } 2554 2555 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2556 { 2557 return (mask >> (parm-1)) & 0x1; 2558 } 2559 2560 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2561 const struct mesh_setup *setup) 2562 { 2563 u8 *new_ie; 2564 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2565 struct ieee80211_sub_if_data, u.mesh); 2566 int i; 2567 2568 /* allocate information elements */ 2569 new_ie = NULL; 2570 2571 if (setup->ie_len) { 2572 new_ie = kmemdup(setup->ie, setup->ie_len, 2573 GFP_KERNEL); 2574 if (!new_ie) 2575 return -ENOMEM; 2576 } 2577 ifmsh->ie_len = setup->ie_len; 2578 ifmsh->ie = new_ie; 2579 2580 /* now copy the rest of the setup parameters */ 2581 ifmsh->mesh_id_len = setup->mesh_id_len; 2582 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2583 ifmsh->mesh_sp_id = setup->sync_method; 2584 ifmsh->mesh_pp_id = setup->path_sel_proto; 2585 ifmsh->mesh_pm_id = setup->path_metric; 2586 ifmsh->user_mpm = setup->user_mpm; 2587 ifmsh->mesh_auth_id = setup->auth_id; 2588 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2589 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2590 if (setup->is_authenticated) 2591 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2592 if (setup->is_secure) 2593 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2594 2595 /* mcast rate setting in Mesh Node */ 2596 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2597 sizeof(setup->mcast_rate)); 2598 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2599 2600 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2601 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2602 2603 sdata->beacon_rate_set = false; 2604 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2605 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2606 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2607 sdata->beacon_rateidx_mask[i] = 2608 setup->beacon_rate.control[i].legacy; 2609 if (sdata->beacon_rateidx_mask[i]) 2610 sdata->beacon_rate_set = true; 2611 } 2612 } 2613 2614 return 0; 2615 } 2616 2617 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2618 struct net_device *dev, u32 mask, 2619 const struct mesh_config *nconf) 2620 { 2621 struct mesh_config *conf; 2622 struct ieee80211_sub_if_data *sdata; 2623 struct ieee80211_if_mesh *ifmsh; 2624 2625 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2626 ifmsh = &sdata->u.mesh; 2627 2628 /* Set the config options which we are interested in setting */ 2629 conf = &(sdata->u.mesh.mshcfg); 2630 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2631 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2632 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2633 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2634 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2635 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2636 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2637 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2638 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2639 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2640 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2641 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2642 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2643 conf->element_ttl = nconf->element_ttl; 2644 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2645 if (ifmsh->user_mpm) 2646 return -EBUSY; 2647 conf->auto_open_plinks = nconf->auto_open_plinks; 2648 } 2649 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2650 conf->dot11MeshNbrOffsetMaxNeighbor = 2651 nconf->dot11MeshNbrOffsetMaxNeighbor; 2652 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2653 conf->dot11MeshHWMPmaxPREQretries = 2654 nconf->dot11MeshHWMPmaxPREQretries; 2655 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2656 conf->path_refresh_time = nconf->path_refresh_time; 2657 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2658 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2659 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2660 conf->dot11MeshHWMPactivePathTimeout = 2661 nconf->dot11MeshHWMPactivePathTimeout; 2662 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2663 conf->dot11MeshHWMPpreqMinInterval = 2664 nconf->dot11MeshHWMPpreqMinInterval; 2665 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2666 conf->dot11MeshHWMPperrMinInterval = 2667 nconf->dot11MeshHWMPperrMinInterval; 2668 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2669 mask)) 2670 conf->dot11MeshHWMPnetDiameterTraversalTime = 2671 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2672 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2673 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2674 ieee80211_mesh_root_setup(ifmsh); 2675 } 2676 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2677 /* our current gate announcement implementation rides on root 2678 * announcements, so require this ifmsh to also be a root node 2679 * */ 2680 if (nconf->dot11MeshGateAnnouncementProtocol && 2681 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2682 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2683 ieee80211_mesh_root_setup(ifmsh); 2684 } 2685 conf->dot11MeshGateAnnouncementProtocol = 2686 nconf->dot11MeshGateAnnouncementProtocol; 2687 } 2688 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2689 conf->dot11MeshHWMPRannInterval = 2690 nconf->dot11MeshHWMPRannInterval; 2691 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2692 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2693 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2694 /* our RSSI threshold implementation is supported only for 2695 * devices that report signal in dBm. 2696 */ 2697 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2698 return -EOPNOTSUPP; 2699 conf->rssi_threshold = nconf->rssi_threshold; 2700 } 2701 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2702 conf->ht_opmode = nconf->ht_opmode; 2703 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2704 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2705 BSS_CHANGED_HT); 2706 } 2707 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2708 conf->dot11MeshHWMPactivePathToRootTimeout = 2709 nconf->dot11MeshHWMPactivePathToRootTimeout; 2710 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2711 conf->dot11MeshHWMProotInterval = 2712 nconf->dot11MeshHWMProotInterval; 2713 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2714 conf->dot11MeshHWMPconfirmationInterval = 2715 nconf->dot11MeshHWMPconfirmationInterval; 2716 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2717 conf->power_mode = nconf->power_mode; 2718 ieee80211_mps_local_status_update(sdata); 2719 } 2720 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2721 conf->dot11MeshAwakeWindowDuration = 2722 nconf->dot11MeshAwakeWindowDuration; 2723 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2724 conf->plink_timeout = nconf->plink_timeout; 2725 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2726 conf->dot11MeshConnectedToMeshGate = 2727 nconf->dot11MeshConnectedToMeshGate; 2728 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2729 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2730 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2731 conf->dot11MeshConnectedToAuthServer = 2732 nconf->dot11MeshConnectedToAuthServer; 2733 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2734 return 0; 2735 } 2736 2737 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2738 const struct mesh_config *conf, 2739 const struct mesh_setup *setup) 2740 { 2741 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2742 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2743 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2744 int err; 2745 2746 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2747 2748 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2749 err = copy_mesh_setup(ifmsh, setup); 2750 if (err) 2751 return err; 2752 2753 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2754 2755 /* can mesh use other SMPS modes? */ 2756 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2757 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2758 2759 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2760 IEEE80211_CHANCTX_SHARED); 2761 if (err) 2762 return err; 2763 2764 return ieee80211_start_mesh(sdata); 2765 } 2766 2767 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2768 { 2769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2770 2771 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2772 2773 ieee80211_stop_mesh(sdata); 2774 ieee80211_link_release_channel(&sdata->deflink); 2775 kfree(sdata->u.mesh.ie); 2776 2777 return 0; 2778 } 2779 #endif 2780 2781 static int ieee80211_change_bss(struct wiphy *wiphy, 2782 struct net_device *dev, 2783 struct bss_parameters *params) 2784 { 2785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2786 struct ieee80211_link_data *link; 2787 struct ieee80211_supported_band *sband; 2788 u64 changed = 0; 2789 2790 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2791 if (IS_ERR(link)) 2792 return PTR_ERR(link); 2793 2794 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2795 return -ENOENT; 2796 2797 sband = ieee80211_get_link_sband(link); 2798 if (!sband) 2799 return -EINVAL; 2800 2801 if (params->basic_rates) { 2802 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2803 wiphy->bands[sband->band], 2804 params->basic_rates, 2805 params->basic_rates_len, 2806 &link->conf->basic_rates)) 2807 return -EINVAL; 2808 changed |= BSS_CHANGED_BASIC_RATES; 2809 ieee80211_check_rate_mask(link); 2810 } 2811 2812 if (params->use_cts_prot >= 0) { 2813 link->conf->use_cts_prot = params->use_cts_prot; 2814 changed |= BSS_CHANGED_ERP_CTS_PROT; 2815 } 2816 if (params->use_short_preamble >= 0) { 2817 link->conf->use_short_preamble = params->use_short_preamble; 2818 changed |= BSS_CHANGED_ERP_PREAMBLE; 2819 } 2820 2821 if (!link->conf->use_short_slot && 2822 (sband->band == NL80211_BAND_5GHZ || 2823 sband->band == NL80211_BAND_6GHZ)) { 2824 link->conf->use_short_slot = true; 2825 changed |= BSS_CHANGED_ERP_SLOT; 2826 } 2827 2828 if (params->use_short_slot_time >= 0) { 2829 link->conf->use_short_slot = params->use_short_slot_time; 2830 changed |= BSS_CHANGED_ERP_SLOT; 2831 } 2832 2833 if (params->ap_isolate >= 0) { 2834 if (params->ap_isolate) 2835 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2836 else 2837 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2838 ieee80211_check_fast_rx_iface(sdata); 2839 } 2840 2841 if (params->ht_opmode >= 0) { 2842 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2843 changed |= BSS_CHANGED_HT; 2844 } 2845 2846 if (params->p2p_ctwindow >= 0) { 2847 link->conf->p2p_noa_attr.oppps_ctwindow &= 2848 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2849 link->conf->p2p_noa_attr.oppps_ctwindow |= 2850 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2851 changed |= BSS_CHANGED_P2P_PS; 2852 } 2853 2854 if (params->p2p_opp_ps > 0) { 2855 link->conf->p2p_noa_attr.oppps_ctwindow |= 2856 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2857 changed |= BSS_CHANGED_P2P_PS; 2858 } else if (params->p2p_opp_ps == 0) { 2859 link->conf->p2p_noa_attr.oppps_ctwindow &= 2860 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2861 changed |= BSS_CHANGED_P2P_PS; 2862 } 2863 2864 ieee80211_link_info_change_notify(sdata, link, changed); 2865 2866 return 0; 2867 } 2868 2869 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2870 struct net_device *dev, 2871 struct ieee80211_txq_params *params) 2872 { 2873 struct ieee80211_local *local = wiphy_priv(wiphy); 2874 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2875 struct ieee80211_link_data *link = 2876 ieee80211_link_or_deflink(sdata, params->link_id, true); 2877 struct ieee80211_tx_queue_params p; 2878 2879 if (!local->ops->conf_tx) 2880 return -EOPNOTSUPP; 2881 2882 if (local->hw.queues < IEEE80211_NUM_ACS) 2883 return -EOPNOTSUPP; 2884 2885 if (IS_ERR(link)) 2886 return PTR_ERR(link); 2887 2888 memset(&p, 0, sizeof(p)); 2889 p.aifs = params->aifs; 2890 p.cw_max = params->cwmax; 2891 p.cw_min = params->cwmin; 2892 p.txop = params->txop; 2893 2894 /* 2895 * Setting tx queue params disables u-apsd because it's only 2896 * called in master mode. 2897 */ 2898 p.uapsd = false; 2899 2900 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2901 2902 link->tx_conf[params->ac] = p; 2903 if (drv_conf_tx(local, link, params->ac, &p)) { 2904 wiphy_debug(local->hw.wiphy, 2905 "failed to set TX queue parameters for AC %d\n", 2906 params->ac); 2907 return -EINVAL; 2908 } 2909 2910 ieee80211_link_info_change_notify(sdata, link, 2911 BSS_CHANGED_QOS); 2912 2913 return 0; 2914 } 2915 2916 #ifdef CONFIG_PM 2917 static int ieee80211_suspend(struct wiphy *wiphy, 2918 struct cfg80211_wowlan *wowlan) 2919 { 2920 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2921 } 2922 2923 static int ieee80211_resume(struct wiphy *wiphy) 2924 { 2925 return __ieee80211_resume(wiphy_priv(wiphy)); 2926 } 2927 #else 2928 #define ieee80211_suspend NULL 2929 #define ieee80211_resume NULL 2930 #endif 2931 2932 static int ieee80211_scan(struct wiphy *wiphy, 2933 struct cfg80211_scan_request *req) 2934 { 2935 struct ieee80211_sub_if_data *sdata; 2936 2937 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2938 2939 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2940 case NL80211_IFTYPE_STATION: 2941 case NL80211_IFTYPE_ADHOC: 2942 case NL80211_IFTYPE_MESH_POINT: 2943 case NL80211_IFTYPE_P2P_CLIENT: 2944 case NL80211_IFTYPE_P2P_DEVICE: 2945 break; 2946 case NL80211_IFTYPE_P2P_GO: 2947 if (sdata->local->ops->hw_scan) 2948 break; 2949 /* 2950 * FIXME: implement NoA while scanning in software, 2951 * for now fall through to allow scanning only when 2952 * beaconing hasn't been configured yet 2953 */ 2954 fallthrough; 2955 case NL80211_IFTYPE_AP: 2956 /* 2957 * If the scan has been forced (and the driver supports 2958 * forcing), don't care about being beaconing already. 2959 * This will create problems to the attached stations (e.g. all 2960 * the frames sent while scanning on other channel will be 2961 * lost) 2962 */ 2963 if (ieee80211_num_beaconing_links(sdata) && 2964 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2965 !(req->flags & NL80211_SCAN_FLAG_AP))) 2966 return -EOPNOTSUPP; 2967 break; 2968 case NL80211_IFTYPE_NAN: 2969 default: 2970 return -EOPNOTSUPP; 2971 } 2972 2973 return ieee80211_request_scan(sdata, req); 2974 } 2975 2976 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2977 { 2978 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2979 } 2980 2981 static int 2982 ieee80211_sched_scan_start(struct wiphy *wiphy, 2983 struct net_device *dev, 2984 struct cfg80211_sched_scan_request *req) 2985 { 2986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2987 2988 if (!sdata->local->ops->sched_scan_start) 2989 return -EOPNOTSUPP; 2990 2991 return ieee80211_request_sched_scan_start(sdata, req); 2992 } 2993 2994 static int 2995 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2996 u64 reqid) 2997 { 2998 struct ieee80211_local *local = wiphy_priv(wiphy); 2999 3000 if (!local->ops->sched_scan_stop) 3001 return -EOPNOTSUPP; 3002 3003 return ieee80211_request_sched_scan_stop(local); 3004 } 3005 3006 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 3007 struct cfg80211_auth_request *req) 3008 { 3009 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3010 } 3011 3012 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 3013 struct cfg80211_assoc_request *req) 3014 { 3015 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3016 } 3017 3018 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 3019 struct cfg80211_deauth_request *req) 3020 { 3021 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3022 } 3023 3024 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 3025 struct cfg80211_disassoc_request *req) 3026 { 3027 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3028 } 3029 3030 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 3031 struct cfg80211_ibss_params *params) 3032 { 3033 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 3034 } 3035 3036 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 3037 { 3038 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3039 } 3040 3041 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 3042 struct ocb_setup *setup) 3043 { 3044 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 3045 } 3046 3047 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 3048 { 3049 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3050 } 3051 3052 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 3053 int rate[NUM_NL80211_BANDS]) 3054 { 3055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3056 3057 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3058 sizeof(int) * NUM_NL80211_BANDS); 3059 3060 if (ieee80211_sdata_running(sdata)) 3061 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3062 BSS_CHANGED_MCAST_RATE); 3063 3064 return 0; 3065 } 3066 3067 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx, 3068 u32 changed) 3069 { 3070 struct ieee80211_local *local = wiphy_priv(wiphy); 3071 int err; 3072 3073 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3074 ieee80211_check_fast_xmit_all(local); 3075 3076 err = drv_set_frag_threshold(local, radio_idx, 3077 wiphy->frag_threshold); 3078 3079 if (err) { 3080 ieee80211_check_fast_xmit_all(local); 3081 return err; 3082 } 3083 } 3084 3085 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3086 (changed & WIPHY_PARAM_DYN_ACK)) { 3087 s16 coverage_class; 3088 3089 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3090 wiphy->coverage_class : -1; 3091 err = drv_set_coverage_class(local, radio_idx, 3092 coverage_class); 3093 3094 if (err) 3095 return err; 3096 } 3097 3098 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3099 u32 rts_threshold; 3100 3101 if ((radio_idx == -1) || (radio_idx >= wiphy->n_radio)) 3102 rts_threshold = wiphy->rts_threshold; 3103 else 3104 rts_threshold = 3105 wiphy->radio_cfg[radio_idx].rts_threshold; 3106 3107 err = drv_set_rts_threshold(local, radio_idx, rts_threshold); 3108 3109 if (err) 3110 return err; 3111 } 3112 3113 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3114 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3115 return -EINVAL; 3116 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3117 } 3118 if (changed & WIPHY_PARAM_RETRY_LONG) { 3119 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3120 return -EINVAL; 3121 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3122 } 3123 if (changed & 3124 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3125 ieee80211_hw_config(local, radio_idx, 3126 IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3127 3128 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3129 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3130 WIPHY_PARAM_TXQ_QUANTUM)) 3131 ieee80211_txq_set_params(local, radio_idx); 3132 3133 return 0; 3134 } 3135 3136 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3137 struct wireless_dev *wdev, int radio_idx, 3138 enum nl80211_tx_power_setting type, int mbm) 3139 { 3140 struct ieee80211_local *local = wiphy_priv(wiphy); 3141 struct ieee80211_sub_if_data *sdata; 3142 enum nl80211_tx_power_setting txp_type = type; 3143 bool update_txp_type = false; 3144 bool has_monitor = false; 3145 int user_power_level; 3146 int old_power = local->user_power_level; 3147 3148 lockdep_assert_wiphy(local->hw.wiphy); 3149 3150 switch (type) { 3151 case NL80211_TX_POWER_AUTOMATIC: 3152 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3153 txp_type = NL80211_TX_POWER_LIMITED; 3154 break; 3155 case NL80211_TX_POWER_LIMITED: 3156 case NL80211_TX_POWER_FIXED: 3157 if (mbm < 0 || (mbm % 100)) 3158 return -EOPNOTSUPP; 3159 user_power_level = MBM_TO_DBM(mbm); 3160 break; 3161 default: 3162 return -EINVAL; 3163 } 3164 3165 if (wdev) { 3166 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3167 3168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3169 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3170 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3171 return -EOPNOTSUPP; 3172 3173 sdata = wiphy_dereference(local->hw.wiphy, 3174 local->monitor_sdata); 3175 if (!sdata) 3176 return -EOPNOTSUPP; 3177 } 3178 3179 for (int link_id = 0; 3180 link_id < ARRAY_SIZE(sdata->link); 3181 link_id++) { 3182 struct ieee80211_link_data *link = 3183 wiphy_dereference(wiphy, sdata->link[link_id]); 3184 3185 if (!link) 3186 continue; 3187 3188 link->user_power_level = user_power_level; 3189 3190 if (txp_type != link->conf->txpower_type) { 3191 update_txp_type = true; 3192 link->conf->txpower_type = txp_type; 3193 } 3194 3195 ieee80211_recalc_txpower(link, update_txp_type); 3196 } 3197 return 0; 3198 } 3199 3200 local->user_power_level = user_power_level; 3201 3202 list_for_each_entry(sdata, &local->interfaces, list) { 3203 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3204 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3205 has_monitor = true; 3206 continue; 3207 } 3208 3209 for (int link_id = 0; 3210 link_id < ARRAY_SIZE(sdata->link); 3211 link_id++) { 3212 struct ieee80211_link_data *link = 3213 wiphy_dereference(wiphy, sdata->link[link_id]); 3214 3215 if (!link) 3216 continue; 3217 3218 link->user_power_level = local->user_power_level; 3219 if (txp_type != link->conf->txpower_type) 3220 update_txp_type = true; 3221 link->conf->txpower_type = txp_type; 3222 } 3223 } 3224 list_for_each_entry(sdata, &local->interfaces, list) { 3225 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3226 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3227 continue; 3228 3229 for (int link_id = 0; 3230 link_id < ARRAY_SIZE(sdata->link); 3231 link_id++) { 3232 struct ieee80211_link_data *link = 3233 wiphy_dereference(wiphy, sdata->link[link_id]); 3234 3235 if (!link) 3236 continue; 3237 3238 ieee80211_recalc_txpower(link, update_txp_type); 3239 } 3240 } 3241 3242 if (has_monitor) { 3243 sdata = wiphy_dereference(local->hw.wiphy, 3244 local->monitor_sdata); 3245 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3246 sdata->deflink.user_power_level = local->user_power_level; 3247 if (txp_type != sdata->vif.bss_conf.txpower_type) 3248 update_txp_type = true; 3249 sdata->vif.bss_conf.txpower_type = txp_type; 3250 3251 ieee80211_recalc_txpower(&sdata->deflink, 3252 update_txp_type); 3253 } 3254 } 3255 3256 if (local->emulate_chanctx && 3257 (old_power != local->user_power_level)) 3258 ieee80211_hw_conf_chan(local); 3259 3260 return 0; 3261 } 3262 3263 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3264 struct wireless_dev *wdev, 3265 int radio_idx, 3266 unsigned int link_id, 3267 int *dbm) 3268 { 3269 struct ieee80211_local *local = wiphy_priv(wiphy); 3270 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3271 struct ieee80211_link_data *link_data; 3272 3273 if (local->ops->get_txpower && 3274 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3275 return drv_get_txpower(local, sdata, link_id, dbm); 3276 3277 if (local->emulate_chanctx) { 3278 *dbm = local->hw.conf.power_level; 3279 } else { 3280 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3281 3282 if (link_data) 3283 *dbm = link_data->conf->txpower; 3284 else 3285 return -ENOLINK; 3286 } 3287 3288 /* INT_MIN indicates no power level was set yet */ 3289 if (*dbm == INT_MIN) 3290 return -EINVAL; 3291 3292 return 0; 3293 } 3294 3295 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3296 { 3297 struct ieee80211_local *local = wiphy_priv(wiphy); 3298 3299 drv_rfkill_poll(local); 3300 } 3301 3302 #ifdef CONFIG_NL80211_TESTMODE 3303 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3304 struct wireless_dev *wdev, 3305 void *data, int len) 3306 { 3307 struct ieee80211_local *local = wiphy_priv(wiphy); 3308 struct ieee80211_vif *vif = NULL; 3309 3310 if (!local->ops->testmode_cmd) 3311 return -EOPNOTSUPP; 3312 3313 if (wdev) { 3314 struct ieee80211_sub_if_data *sdata; 3315 3316 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3317 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3318 vif = &sdata->vif; 3319 } 3320 3321 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3322 } 3323 3324 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3325 struct sk_buff *skb, 3326 struct netlink_callback *cb, 3327 void *data, int len) 3328 { 3329 struct ieee80211_local *local = wiphy_priv(wiphy); 3330 3331 if (!local->ops->testmode_dump) 3332 return -EOPNOTSUPP; 3333 3334 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3335 } 3336 #endif 3337 3338 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3339 struct ieee80211_link_data *link, 3340 enum ieee80211_smps_mode smps_mode) 3341 { 3342 const u8 *ap; 3343 enum ieee80211_smps_mode old_req; 3344 int err; 3345 struct sta_info *sta; 3346 bool tdls_peer_found = false; 3347 3348 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3349 3350 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3351 return -EINVAL; 3352 3353 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3354 return 0; 3355 3356 old_req = link->u.mgd.req_smps; 3357 link->u.mgd.req_smps = smps_mode; 3358 3359 /* The driver indicated that EML is enabled for the interface, which 3360 * implies that SMPS flows towards the AP should be stopped. 3361 */ 3362 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3363 return 0; 3364 3365 if (old_req == smps_mode && 3366 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3367 return 0; 3368 3369 /* 3370 * If not associated, or current association is not an HT 3371 * association, there's no need to do anything, just store 3372 * the new value until we associate. 3373 */ 3374 if (!sdata->u.mgd.associated || 3375 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3376 return 0; 3377 3378 ap = sdata->vif.cfg.ap_addr; 3379 3380 rcu_read_lock(); 3381 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3382 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3383 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3384 continue; 3385 3386 tdls_peer_found = true; 3387 break; 3388 } 3389 rcu_read_unlock(); 3390 3391 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3392 if (tdls_peer_found || !sdata->u.mgd.powersave) 3393 smps_mode = IEEE80211_SMPS_OFF; 3394 else 3395 smps_mode = IEEE80211_SMPS_DYNAMIC; 3396 } 3397 3398 /* send SM PS frame to AP */ 3399 err = ieee80211_send_smps_action(sdata, smps_mode, 3400 ap, ap, 3401 ieee80211_vif_is_mld(&sdata->vif) ? 3402 link->link_id : -1); 3403 if (err) 3404 link->u.mgd.req_smps = old_req; 3405 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3406 ieee80211_teardown_tdls_peers(link); 3407 3408 return err; 3409 } 3410 3411 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3412 bool enabled, int timeout) 3413 { 3414 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3415 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3416 unsigned int link_id; 3417 3418 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3419 return -EOPNOTSUPP; 3420 3421 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3422 return -EOPNOTSUPP; 3423 3424 if (enabled == sdata->u.mgd.powersave && 3425 timeout == local->dynamic_ps_forced_timeout) 3426 return 0; 3427 3428 sdata->u.mgd.powersave = enabled; 3429 local->dynamic_ps_forced_timeout = timeout; 3430 3431 /* no change, but if automatic follow powersave */ 3432 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3433 struct ieee80211_link_data *link; 3434 3435 link = sdata_dereference(sdata->link[link_id], sdata); 3436 3437 if (!link) 3438 continue; 3439 __ieee80211_request_smps_mgd(sdata, link, 3440 link->u.mgd.req_smps); 3441 } 3442 3443 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3444 ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS); 3445 3446 ieee80211_recalc_ps(local); 3447 ieee80211_recalc_ps_vif(sdata); 3448 ieee80211_check_fast_rx_iface(sdata); 3449 3450 return 0; 3451 } 3452 3453 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3454 struct ieee80211_link_data *link, 3455 s32 rssi_thold, u32 rssi_hyst, 3456 s32 rssi_low, s32 rssi_high) 3457 { 3458 struct ieee80211_bss_conf *conf; 3459 3460 if (!link || !link->conf) 3461 return; 3462 3463 conf = link->conf; 3464 3465 if (rssi_thold && rssi_hyst && 3466 rssi_thold == conf->cqm_rssi_thold && 3467 rssi_hyst == conf->cqm_rssi_hyst) 3468 return; 3469 3470 conf->cqm_rssi_thold = rssi_thold; 3471 conf->cqm_rssi_hyst = rssi_hyst; 3472 conf->cqm_rssi_low = rssi_low; 3473 conf->cqm_rssi_high = rssi_high; 3474 link->u.mgd.last_cqm_event_signal = 0; 3475 3476 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3477 return; 3478 3479 if (sdata->u.mgd.associated && 3480 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3481 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3482 } 3483 3484 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3485 struct net_device *dev, 3486 s32 rssi_thold, u32 rssi_hyst) 3487 { 3488 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3489 struct ieee80211_vif *vif = &sdata->vif; 3490 int link_id; 3491 3492 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3493 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3494 return -EOPNOTSUPP; 3495 3496 /* For MLD, handle CQM change on all the active links */ 3497 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3498 struct ieee80211_link_data *link = 3499 sdata_dereference(sdata->link[link_id], sdata); 3500 3501 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3502 0, 0); 3503 } 3504 3505 return 0; 3506 } 3507 3508 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3509 struct net_device *dev, 3510 s32 rssi_low, s32 rssi_high) 3511 { 3512 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3513 struct ieee80211_vif *vif = &sdata->vif; 3514 int link_id; 3515 3516 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3517 return -EOPNOTSUPP; 3518 3519 /* For MLD, handle CQM change on all the active links */ 3520 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3521 struct ieee80211_link_data *link = 3522 sdata_dereference(sdata->link[link_id], sdata); 3523 3524 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3525 rssi_low, rssi_high); 3526 } 3527 3528 return 0; 3529 } 3530 3531 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3532 struct net_device *dev, 3533 unsigned int link_id, 3534 const u8 *addr, 3535 const struct cfg80211_bitrate_mask *mask) 3536 { 3537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3538 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3539 int i, ret; 3540 3541 if (!ieee80211_sdata_running(sdata)) 3542 return -ENETDOWN; 3543 3544 /* 3545 * If active validate the setting and reject it if it doesn't leave 3546 * at least one basic rate usable, since we really have to be able 3547 * to send something, and if we're an AP we have to be able to do 3548 * so at a basic rate so that all clients can receive it. 3549 */ 3550 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3551 sdata->vif.bss_conf.chanreq.oper.chan) { 3552 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3553 enum nl80211_band band; 3554 3555 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3556 3557 if (!(mask->control[band].legacy & basic_rates)) 3558 return -EINVAL; 3559 } 3560 3561 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3562 ret = drv_set_bitrate_mask(local, sdata, mask); 3563 if (ret) 3564 return ret; 3565 } 3566 3567 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3568 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3569 int j; 3570 3571 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3572 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3573 sizeof(mask->control[i].ht_mcs)); 3574 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3575 mask->control[i].vht_mcs, 3576 sizeof(mask->control[i].vht_mcs)); 3577 3578 sdata->rc_has_mcs_mask[i] = false; 3579 sdata->rc_has_vht_mcs_mask[i] = false; 3580 if (!sband) 3581 continue; 3582 3583 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3584 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3585 sdata->rc_has_mcs_mask[i] = true; 3586 break; 3587 } 3588 } 3589 3590 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3591 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3592 sdata->rc_has_vht_mcs_mask[i] = true; 3593 break; 3594 } 3595 } 3596 } 3597 3598 return 0; 3599 } 3600 3601 static bool ieee80211_is_scan_ongoing(struct wiphy *wiphy, 3602 struct ieee80211_local *local, 3603 struct cfg80211_chan_def *chandef) 3604 { 3605 struct cfg80211_scan_request *scan_req; 3606 int chan_radio_idx, req_radio_idx; 3607 struct ieee80211_roc_work *roc; 3608 3609 if (list_empty(&local->roc_list) && !local->scanning) 3610 return false; 3611 3612 if (wiphy->n_radio < 2) 3613 return true; 3614 3615 req_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chandef->chan); 3616 if (req_radio_idx < 0) 3617 return true; 3618 3619 if (local->scanning) { 3620 scan_req = wiphy_dereference(wiphy, local->scan_req); 3621 /* 3622 * Scan is going on but info is not there. Should not happen 3623 * but if it does, let's not take risk and assume we can't use 3624 * the hw hence return true 3625 */ 3626 if (WARN_ON_ONCE(!scan_req)) 3627 return true; 3628 3629 return ieee80211_is_radio_idx_in_scan_req(wiphy, scan_req, 3630 req_radio_idx); 3631 } 3632 3633 list_for_each_entry(roc, &local->roc_list, list) { 3634 chan_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, 3635 roc->chan); 3636 /* 3637 * The roc work is added but chan_radio_idx is invalid. 3638 * Should not happen but if it does, let's not take 3639 * risk and return true. 3640 */ 3641 if (chan_radio_idx < 0) 3642 return true; 3643 3644 if (chan_radio_idx == req_radio_idx) 3645 return true; 3646 } 3647 3648 return false; 3649 } 3650 3651 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3652 struct net_device *dev, 3653 struct cfg80211_chan_def *chandef, 3654 u32 cac_time_ms, int link_id) 3655 { 3656 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3657 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3658 struct ieee80211_local *local = sdata->local; 3659 struct ieee80211_link_data *link_data; 3660 int err; 3661 3662 lockdep_assert_wiphy(local->hw.wiphy); 3663 3664 if (ieee80211_is_scan_ongoing(wiphy, local, chandef)) 3665 return -EBUSY; 3666 3667 link_data = sdata_dereference(sdata->link[link_id], sdata); 3668 if (!link_data) 3669 return -ENOLINK; 3670 3671 /* whatever, but channel contexts should not complain about that one */ 3672 link_data->smps_mode = IEEE80211_SMPS_OFF; 3673 link_data->needed_rx_chains = local->rx_chains; 3674 3675 err = ieee80211_link_use_channel(link_data, &chanreq, 3676 IEEE80211_CHANCTX_SHARED); 3677 if (err) 3678 return err; 3679 3680 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3681 msecs_to_jiffies(cac_time_ms)); 3682 3683 return 0; 3684 } 3685 3686 static void ieee80211_end_cac(struct wiphy *wiphy, 3687 struct net_device *dev, unsigned int link_id) 3688 { 3689 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3690 struct ieee80211_local *local = sdata->local; 3691 struct ieee80211_link_data *link_data; 3692 3693 lockdep_assert_wiphy(local->hw.wiphy); 3694 3695 list_for_each_entry(sdata, &local->interfaces, list) { 3696 link_data = sdata_dereference(sdata->link[link_id], sdata); 3697 if (!link_data) 3698 continue; 3699 3700 wiphy_delayed_work_cancel(wiphy, 3701 &link_data->dfs_cac_timer_work); 3702 3703 if (sdata->wdev.links[link_id].cac_started) { 3704 ieee80211_link_release_channel(link_data); 3705 sdata->wdev.links[link_id].cac_started = false; 3706 } 3707 } 3708 } 3709 3710 static struct cfg80211_beacon_data * 3711 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3712 { 3713 struct cfg80211_beacon_data *new_beacon; 3714 u8 *pos; 3715 int len; 3716 3717 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3718 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3719 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3720 3721 if (beacon->mbssid_ies) 3722 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3723 beacon->rnr_ies, 3724 beacon->mbssid_ies->cnt); 3725 3726 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3727 if (!new_beacon) 3728 return NULL; 3729 3730 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3731 new_beacon->mbssid_ies = 3732 kzalloc(struct_size(new_beacon->mbssid_ies, 3733 elem, beacon->mbssid_ies->cnt), 3734 GFP_KERNEL); 3735 if (!new_beacon->mbssid_ies) { 3736 kfree(new_beacon); 3737 return NULL; 3738 } 3739 3740 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3741 new_beacon->rnr_ies = 3742 kzalloc(struct_size(new_beacon->rnr_ies, 3743 elem, beacon->rnr_ies->cnt), 3744 GFP_KERNEL); 3745 if (!new_beacon->rnr_ies) { 3746 kfree(new_beacon->mbssid_ies); 3747 kfree(new_beacon); 3748 return NULL; 3749 } 3750 } 3751 } 3752 3753 pos = (u8 *)(new_beacon + 1); 3754 if (beacon->head_len) { 3755 new_beacon->head_len = beacon->head_len; 3756 new_beacon->head = pos; 3757 memcpy(pos, beacon->head, beacon->head_len); 3758 pos += beacon->head_len; 3759 } 3760 if (beacon->tail_len) { 3761 new_beacon->tail_len = beacon->tail_len; 3762 new_beacon->tail = pos; 3763 memcpy(pos, beacon->tail, beacon->tail_len); 3764 pos += beacon->tail_len; 3765 } 3766 if (beacon->beacon_ies_len) { 3767 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3768 new_beacon->beacon_ies = pos; 3769 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3770 pos += beacon->beacon_ies_len; 3771 } 3772 if (beacon->proberesp_ies_len) { 3773 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3774 new_beacon->proberesp_ies = pos; 3775 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3776 pos += beacon->proberesp_ies_len; 3777 } 3778 if (beacon->assocresp_ies_len) { 3779 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3780 new_beacon->assocresp_ies = pos; 3781 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3782 pos += beacon->assocresp_ies_len; 3783 } 3784 if (beacon->probe_resp_len) { 3785 new_beacon->probe_resp_len = beacon->probe_resp_len; 3786 new_beacon->probe_resp = pos; 3787 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3788 pos += beacon->probe_resp_len; 3789 } 3790 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3791 pos += ieee80211_copy_mbssid_beacon(pos, 3792 new_beacon->mbssid_ies, 3793 beacon->mbssid_ies); 3794 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3795 pos += ieee80211_copy_rnr_beacon(pos, 3796 new_beacon->rnr_ies, 3797 beacon->rnr_ies); 3798 } 3799 3800 /* might copy -1, meaning no changes requested */ 3801 new_beacon->ftm_responder = beacon->ftm_responder; 3802 if (beacon->lci) { 3803 new_beacon->lci_len = beacon->lci_len; 3804 new_beacon->lci = pos; 3805 memcpy(pos, beacon->lci, beacon->lci_len); 3806 pos += beacon->lci_len; 3807 } 3808 if (beacon->civicloc) { 3809 new_beacon->civicloc_len = beacon->civicloc_len; 3810 new_beacon->civicloc = pos; 3811 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3812 pos += beacon->civicloc_len; 3813 } 3814 3815 return new_beacon; 3816 } 3817 3818 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3819 { 3820 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3821 struct ieee80211_local *local = sdata->local; 3822 struct ieee80211_bss_conf *tx_bss_conf; 3823 struct ieee80211_link_data *link_data; 3824 3825 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3826 return; 3827 3828 rcu_read_lock(); 3829 3830 link_data = rcu_dereference(sdata->link[link_id]); 3831 if (WARN_ON(!link_data)) { 3832 rcu_read_unlock(); 3833 return; 3834 } 3835 3836 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf); 3837 if (tx_bss_conf == link_data->conf) { 3838 /* Trigger ieee80211_csa_finish() on the non-transmitting 3839 * interfaces when channel switch is received on 3840 * transmitting interface 3841 */ 3842 struct ieee80211_link_data *iter; 3843 3844 for_each_sdata_link_rcu(local, iter) { 3845 if (iter->sdata == sdata || 3846 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf) 3847 continue; 3848 3849 wiphy_work_queue(iter->sdata->local->hw.wiphy, 3850 &iter->csa.finalize_work); 3851 } 3852 } 3853 3854 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 3855 3856 rcu_read_unlock(); 3857 } 3858 EXPORT_SYMBOL(ieee80211_csa_finish); 3859 3860 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 3861 { 3862 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3863 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3864 struct ieee80211_local *local = sdata->local; 3865 3866 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3867 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3868 } 3869 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3870 3871 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3872 u64 *changed) 3873 { 3874 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3875 int err; 3876 3877 switch (sdata->vif.type) { 3878 case NL80211_IFTYPE_AP: 3879 if (!link_data->u.ap.next_beacon) 3880 return -EINVAL; 3881 3882 err = ieee80211_assign_beacon(sdata, link_data, 3883 link_data->u.ap.next_beacon, 3884 NULL, NULL, changed); 3885 ieee80211_free_next_beacon(link_data); 3886 3887 if (err < 0) 3888 return err; 3889 break; 3890 case NL80211_IFTYPE_ADHOC: 3891 err = ieee80211_ibss_finish_csa(sdata, changed); 3892 if (err < 0) 3893 return err; 3894 break; 3895 #ifdef CONFIG_MAC80211_MESH 3896 case NL80211_IFTYPE_MESH_POINT: 3897 err = ieee80211_mesh_finish_csa(sdata, changed); 3898 if (err < 0) 3899 return err; 3900 break; 3901 #endif 3902 default: 3903 WARN_ON(1); 3904 return -EINVAL; 3905 } 3906 3907 return 0; 3908 } 3909 3910 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3911 { 3912 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3913 struct ieee80211_local *local = sdata->local; 3914 struct ieee80211_bss_conf *link_conf = link_data->conf; 3915 u64 changed = 0; 3916 int err; 3917 3918 lockdep_assert_wiphy(local->hw.wiphy); 3919 3920 /* 3921 * using reservation isn't immediate as it may be deferred until later 3922 * with multi-vif. once reservation is complete it will re-schedule the 3923 * work with no reserved_chanctx so verify chandef to check if it 3924 * completed successfully 3925 */ 3926 3927 if (link_data->reserved_chanctx) { 3928 /* 3929 * with multi-vif csa driver may call ieee80211_csa_finish() 3930 * many times while waiting for other interfaces to use their 3931 * reservations 3932 */ 3933 if (link_data->reserved_ready) 3934 return 0; 3935 3936 return ieee80211_link_use_reserved_context(link_data); 3937 } 3938 3939 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3940 &link_data->csa.chanreq.oper)) 3941 return -EINVAL; 3942 3943 link_conf->csa_active = false; 3944 3945 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3946 if (err) 3947 return err; 3948 3949 ieee80211_link_info_change_notify(sdata, link_data, changed); 3950 3951 ieee80211_vif_unblock_queues_csa(sdata); 3952 3953 err = drv_post_channel_switch(link_data); 3954 if (err) 3955 return err; 3956 3957 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 3958 link_data->link_id); 3959 3960 return 0; 3961 } 3962 3963 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3964 { 3965 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3966 3967 if (__ieee80211_csa_finalize(link_data)) { 3968 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3969 link_data->link_id); 3970 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3971 GFP_KERNEL); 3972 } 3973 } 3974 3975 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3976 { 3977 struct ieee80211_link_data *link = 3978 container_of(work, struct ieee80211_link_data, csa.finalize_work); 3979 struct ieee80211_sub_if_data *sdata = link->sdata; 3980 struct ieee80211_local *local = sdata->local; 3981 3982 lockdep_assert_wiphy(local->hw.wiphy); 3983 3984 /* AP might have been stopped while waiting for the lock. */ 3985 if (!link->conf->csa_active) 3986 return; 3987 3988 if (!ieee80211_sdata_running(sdata)) 3989 return; 3990 3991 ieee80211_csa_finalize(link); 3992 } 3993 3994 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3995 struct cfg80211_csa_settings *params, 3996 u64 *changed) 3997 { 3998 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3999 struct ieee80211_csa_settings csa = {}; 4000 int err; 4001 4002 switch (sdata->vif.type) { 4003 case NL80211_IFTYPE_AP: 4004 link_data->u.ap.next_beacon = 4005 cfg80211_beacon_dup(¶ms->beacon_after); 4006 if (!link_data->u.ap.next_beacon) 4007 return -ENOMEM; 4008 4009 /* 4010 * With a count of 0, we don't have to wait for any 4011 * TBTT before switching, so complete the CSA 4012 * immediately. In theory, with a count == 1 we 4013 * should delay the switch until just before the next 4014 * TBTT, but that would complicate things so we switch 4015 * immediately too. If we would delay the switch 4016 * until the next TBTT, we would have to set the probe 4017 * response here. 4018 * 4019 * TODO: A channel switch with count <= 1 without 4020 * sending a CSA action frame is kind of useless, 4021 * because the clients won't know we're changing 4022 * channels. The action frame must be implemented 4023 * either here or in the userspace. 4024 */ 4025 if (params->count <= 1) 4026 break; 4027 4028 if ((params->n_counter_offsets_beacon > 4029 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 4030 (params->n_counter_offsets_presp > 4031 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 4032 ieee80211_free_next_beacon(link_data); 4033 return -EINVAL; 4034 } 4035 4036 csa.counter_offsets_beacon = params->counter_offsets_beacon; 4037 csa.counter_offsets_presp = params->counter_offsets_presp; 4038 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 4039 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 4040 csa.count = params->count; 4041 4042 err = ieee80211_assign_beacon(sdata, link_data, 4043 ¶ms->beacon_csa, &csa, 4044 NULL, changed); 4045 if (err < 0) { 4046 ieee80211_free_next_beacon(link_data); 4047 return err; 4048 } 4049 4050 break; 4051 case NL80211_IFTYPE_ADHOC: 4052 if (!sdata->vif.cfg.ibss_joined) 4053 return -EINVAL; 4054 4055 if (params->chandef.width != sdata->u.ibss.chandef.width) 4056 return -EINVAL; 4057 4058 switch (params->chandef.width) { 4059 case NL80211_CHAN_WIDTH_40: 4060 if (cfg80211_get_chandef_type(¶ms->chandef) != 4061 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 4062 return -EINVAL; 4063 break; 4064 case NL80211_CHAN_WIDTH_5: 4065 case NL80211_CHAN_WIDTH_10: 4066 case NL80211_CHAN_WIDTH_20_NOHT: 4067 case NL80211_CHAN_WIDTH_20: 4068 break; 4069 default: 4070 return -EINVAL; 4071 } 4072 4073 /* changes into another band are not supported */ 4074 if (sdata->u.ibss.chandef.chan->band != 4075 params->chandef.chan->band) 4076 return -EINVAL; 4077 4078 /* see comments in the NL80211_IFTYPE_AP block */ 4079 if (params->count > 1) { 4080 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 4081 if (err < 0) 4082 return err; 4083 } 4084 4085 ieee80211_send_action_csa(sdata, params); 4086 4087 break; 4088 #ifdef CONFIG_MAC80211_MESH 4089 case NL80211_IFTYPE_MESH_POINT: { 4090 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4091 4092 /* changes into another band are not supported */ 4093 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 4094 params->chandef.chan->band) 4095 return -EINVAL; 4096 4097 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 4098 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 4099 if (!ifmsh->pre_value) 4100 ifmsh->pre_value = 1; 4101 else 4102 ifmsh->pre_value++; 4103 } 4104 4105 /* see comments in the NL80211_IFTYPE_AP block */ 4106 if (params->count > 1) { 4107 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 4108 if (err < 0) { 4109 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 4110 return err; 4111 } 4112 } 4113 4114 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 4115 ieee80211_send_action_csa(sdata, params); 4116 4117 break; 4118 } 4119 #endif 4120 default: 4121 return -EOPNOTSUPP; 4122 } 4123 4124 return 0; 4125 } 4126 4127 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4128 { 4129 link->conf->color_change_active = false; 4130 4131 ieee80211_free_next_beacon(link); 4132 4133 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4134 } 4135 4136 static int 4137 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4138 struct cfg80211_csa_settings *params) 4139 { 4140 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4141 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4142 struct ieee80211_local *local = sdata->local; 4143 struct ieee80211_channel_switch ch_switch = { 4144 .link_id = params->link_id, 4145 }; 4146 struct ieee80211_chanctx_conf *conf; 4147 struct ieee80211_chanctx *chanctx; 4148 struct ieee80211_bss_conf *link_conf; 4149 struct ieee80211_link_data *link_data; 4150 u64 changed = 0; 4151 u8 link_id = params->link_id; 4152 int err; 4153 4154 lockdep_assert_wiphy(local->hw.wiphy); 4155 4156 if (ieee80211_is_scan_ongoing(wiphy, local, ¶ms->chandef)) 4157 return -EBUSY; 4158 4159 if (sdata->wdev.links[link_id].cac_started) 4160 return -EBUSY; 4161 4162 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4163 return -EINVAL; 4164 4165 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4166 if (!link_data) 4167 return -ENOLINK; 4168 4169 link_conf = link_data->conf; 4170 4171 if (chanreq.oper.punctured && !link_conf->eht_support) 4172 return -EINVAL; 4173 4174 /* don't allow another channel switch if one is already active. */ 4175 if (link_conf->csa_active) 4176 return -EBUSY; 4177 4178 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4179 if (!conf) { 4180 err = -EBUSY; 4181 goto out; 4182 } 4183 4184 if (params->chandef.chan->freq_offset) { 4185 /* this may work, but is untested */ 4186 err = -EOPNOTSUPP; 4187 goto out; 4188 } 4189 4190 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 4191 ¶ms->unsol_bcast_probe_resp, 4192 link_data, link_conf, &changed); 4193 if (err) 4194 goto out; 4195 4196 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4197 4198 ch_switch.timestamp = 0; 4199 ch_switch.device_timestamp = 0; 4200 ch_switch.block_tx = params->block_tx; 4201 ch_switch.chandef = chanreq.oper; 4202 ch_switch.count = params->count; 4203 4204 err = drv_pre_channel_switch(sdata, &ch_switch); 4205 if (err) 4206 goto out; 4207 4208 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4209 chanctx->mode, 4210 params->radar_required); 4211 if (err) 4212 goto out; 4213 4214 /* if reservation is invalid then this will fail */ 4215 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4216 if (err) { 4217 ieee80211_link_unreserve_chanctx(link_data); 4218 goto out; 4219 } 4220 4221 /* if there is a color change in progress, abort it */ 4222 if (link_conf->color_change_active) 4223 ieee80211_color_change_abort(link_data); 4224 4225 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4226 if (err) { 4227 ieee80211_link_unreserve_chanctx(link_data); 4228 goto out; 4229 } 4230 4231 link_data->csa.chanreq = chanreq; 4232 link_conf->csa_active = true; 4233 4234 if (params->block_tx) 4235 ieee80211_vif_block_queues_csa(sdata); 4236 4237 cfg80211_ch_switch_started_notify(sdata->dev, 4238 &link_data->csa.chanreq.oper, link_id, 4239 params->count, params->block_tx); 4240 4241 if (changed) { 4242 ieee80211_link_info_change_notify(sdata, link_data, changed); 4243 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4244 } else { 4245 /* if the beacon didn't change, we can finalize immediately */ 4246 ieee80211_csa_finalize(link_data); 4247 } 4248 4249 out: 4250 return err; 4251 } 4252 4253 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4254 struct cfg80211_csa_settings *params) 4255 { 4256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4257 struct ieee80211_local *local = sdata->local; 4258 4259 lockdep_assert_wiphy(local->hw.wiphy); 4260 4261 return __ieee80211_channel_switch(wiphy, dev, params); 4262 } 4263 4264 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4265 { 4266 lockdep_assert_wiphy(local->hw.wiphy); 4267 4268 local->roc_cookie_counter++; 4269 4270 /* wow, you wrapped 64 bits ... more likely a bug */ 4271 if (WARN_ON(local->roc_cookie_counter == 0)) 4272 local->roc_cookie_counter++; 4273 4274 return local->roc_cookie_counter; 4275 } 4276 4277 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4278 u64 *cookie, gfp_t gfp) 4279 { 4280 unsigned long spin_flags; 4281 struct sk_buff *ack_skb; 4282 int id; 4283 4284 ack_skb = skb_copy(skb, gfp); 4285 if (!ack_skb) 4286 return -ENOMEM; 4287 4288 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4289 id = idr_alloc(&local->ack_status_frames, ack_skb, 4290 1, 0x2000, GFP_ATOMIC); 4291 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4292 4293 if (id < 0) { 4294 kfree_skb(ack_skb); 4295 return -ENOMEM; 4296 } 4297 4298 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4299 IEEE80211_SKB_CB(skb)->status_data = id; 4300 4301 *cookie = ieee80211_mgmt_tx_cookie(local); 4302 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4303 4304 return 0; 4305 } 4306 4307 static void 4308 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4309 struct wireless_dev *wdev, 4310 struct mgmt_frame_regs *upd) 4311 { 4312 struct ieee80211_local *local = wiphy_priv(wiphy); 4313 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4314 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4315 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4316 bool global_change, intf_change; 4317 4318 global_change = 4319 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4320 (local->rx_mcast_action_reg != 4321 !!(upd->global_mcast_stypes & action_mask)); 4322 local->probe_req_reg = upd->global_stypes & preq_mask; 4323 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4324 4325 intf_change = (sdata->vif.probe_req_reg != 4326 !!(upd->interface_stypes & preq_mask)) || 4327 (sdata->vif.rx_mcast_action_reg != 4328 !!(upd->interface_mcast_stypes & action_mask)); 4329 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4330 sdata->vif.rx_mcast_action_reg = 4331 upd->interface_mcast_stypes & action_mask; 4332 4333 if (!local->open_count) 4334 return; 4335 4336 if (intf_change && ieee80211_sdata_running(sdata)) 4337 drv_config_iface_filter(local, sdata, 4338 sdata->vif.probe_req_reg ? 4339 FIF_PROBE_REQ : 0, 4340 FIF_PROBE_REQ); 4341 4342 if (global_change) 4343 ieee80211_configure_filter(local); 4344 } 4345 4346 static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx, 4347 u32 tx_ant, u32 rx_ant) 4348 { 4349 struct ieee80211_local *local = wiphy_priv(wiphy); 4350 int ret; 4351 4352 if (local->started) 4353 return -EOPNOTSUPP; 4354 4355 ret = drv_set_antenna(local, tx_ant, rx_ant); 4356 if (ret) 4357 return ret; 4358 4359 local->rx_chains = hweight8(rx_ant); 4360 return 0; 4361 } 4362 4363 static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx, 4364 u32 *tx_ant, u32 *rx_ant) 4365 { 4366 struct ieee80211_local *local = wiphy_priv(wiphy); 4367 4368 return drv_get_antenna(local, radio_idx, tx_ant, rx_ant); 4369 } 4370 4371 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4372 struct net_device *dev, 4373 struct cfg80211_gtk_rekey_data *data) 4374 { 4375 struct ieee80211_local *local = wiphy_priv(wiphy); 4376 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4377 4378 if (!local->ops->set_rekey_data) 4379 return -EOPNOTSUPP; 4380 4381 drv_set_rekey_data(local, sdata, data); 4382 4383 return 0; 4384 } 4385 4386 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4387 const u8 *peer, u64 *cookie) 4388 { 4389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4390 struct ieee80211_local *local = sdata->local; 4391 struct ieee80211_qos_hdr *nullfunc; 4392 struct sk_buff *skb; 4393 int size = sizeof(*nullfunc); 4394 __le16 fc; 4395 bool qos; 4396 struct ieee80211_tx_info *info; 4397 struct sta_info *sta; 4398 struct ieee80211_chanctx_conf *chanctx_conf; 4399 enum nl80211_band band; 4400 int ret; 4401 4402 /* the lock is needed to assign the cookie later */ 4403 lockdep_assert_wiphy(local->hw.wiphy); 4404 4405 rcu_read_lock(); 4406 sta = sta_info_get_bss(sdata, peer); 4407 if (!sta) { 4408 ret = -ENOLINK; 4409 goto unlock; 4410 } 4411 4412 qos = sta->sta.wme; 4413 4414 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4415 if (WARN_ON(!chanctx_conf)) { 4416 ret = -EINVAL; 4417 goto unlock; 4418 } 4419 band = chanctx_conf->def.chan->band; 4420 4421 if (qos) { 4422 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4423 IEEE80211_STYPE_QOS_NULLFUNC | 4424 IEEE80211_FCTL_FROMDS); 4425 } else { 4426 size -= 2; 4427 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4428 IEEE80211_STYPE_NULLFUNC | 4429 IEEE80211_FCTL_FROMDS); 4430 } 4431 4432 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4433 if (!skb) { 4434 ret = -ENOMEM; 4435 goto unlock; 4436 } 4437 4438 skb->dev = dev; 4439 4440 skb_reserve(skb, local->hw.extra_tx_headroom); 4441 4442 nullfunc = skb_put(skb, size); 4443 nullfunc->frame_control = fc; 4444 nullfunc->duration_id = 0; 4445 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4446 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4447 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4448 nullfunc->seq_ctrl = 0; 4449 4450 info = IEEE80211_SKB_CB(skb); 4451 4452 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4453 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4454 info->band = band; 4455 4456 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4457 skb->priority = 7; 4458 if (qos) 4459 nullfunc->qos_ctrl = cpu_to_le16(7); 4460 4461 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4462 if (ret) { 4463 kfree_skb(skb); 4464 goto unlock; 4465 } 4466 4467 local_bh_disable(); 4468 ieee80211_xmit(sdata, sta, skb); 4469 local_bh_enable(); 4470 4471 ret = 0; 4472 unlock: 4473 rcu_read_unlock(); 4474 4475 return ret; 4476 } 4477 4478 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4479 struct wireless_dev *wdev, 4480 unsigned int link_id, 4481 struct cfg80211_chan_def *chandef) 4482 { 4483 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4484 struct ieee80211_local *local = wiphy_priv(wiphy); 4485 struct ieee80211_chanctx_conf *chanctx_conf; 4486 struct ieee80211_link_data *link; 4487 int ret = -ENODATA; 4488 4489 rcu_read_lock(); 4490 link = rcu_dereference(sdata->link[link_id]); 4491 if (!link) { 4492 ret = -ENOLINK; 4493 goto out; 4494 } 4495 4496 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4497 if (chanctx_conf) { 4498 *chandef = link->conf->chanreq.oper; 4499 ret = 0; 4500 } else if (local->open_count > 0 && 4501 local->open_count == local->virt_monitors && 4502 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4503 *chandef = local->monitor_chanreq.oper; 4504 ret = 0; 4505 } 4506 out: 4507 rcu_read_unlock(); 4508 4509 return ret; 4510 } 4511 4512 #ifdef CONFIG_PM 4513 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4514 { 4515 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4516 } 4517 #endif 4518 4519 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4520 struct net_device *dev, 4521 struct cfg80211_qos_map *qos_map) 4522 { 4523 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4524 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4525 4526 if (qos_map) { 4527 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4528 if (!new_qos_map) 4529 return -ENOMEM; 4530 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4531 } else { 4532 /* A NULL qos_map was passed to disable QoS mapping */ 4533 new_qos_map = NULL; 4534 } 4535 4536 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4537 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4538 if (old_qos_map) 4539 kfree_rcu(old_qos_map, rcu_head); 4540 4541 return 0; 4542 } 4543 4544 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4545 struct net_device *dev, 4546 unsigned int link_id, 4547 struct cfg80211_chan_def *chandef) 4548 { 4549 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4550 struct ieee80211_link_data *link; 4551 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4552 int ret; 4553 u64 changed = 0; 4554 4555 link = sdata_dereference(sdata->link[link_id], sdata); 4556 4557 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4558 if (ret == 0) 4559 ieee80211_link_info_change_notify(sdata, link, changed); 4560 4561 return ret; 4562 } 4563 4564 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4565 u8 tsid, const u8 *peer, u8 up, 4566 u16 admitted_time) 4567 { 4568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4569 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4570 int ac = ieee802_1d_to_ac[up]; 4571 4572 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4573 return -EOPNOTSUPP; 4574 4575 if (!(sdata->wmm_acm & BIT(up))) 4576 return -EINVAL; 4577 4578 if (ifmgd->tx_tspec[ac].admitted_time) 4579 return -EBUSY; 4580 4581 if (admitted_time) { 4582 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4583 ifmgd->tx_tspec[ac].tsid = tsid; 4584 ifmgd->tx_tspec[ac].up = up; 4585 } 4586 4587 return 0; 4588 } 4589 4590 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4591 u8 tsid, const u8 *peer) 4592 { 4593 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4594 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4595 struct ieee80211_local *local = wiphy_priv(wiphy); 4596 int ac; 4597 4598 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4599 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4600 4601 /* skip unused entries */ 4602 if (!tx_tspec->admitted_time) 4603 continue; 4604 4605 if (tx_tspec->tsid != tsid) 4606 continue; 4607 4608 /* due to this new packets will be reassigned to non-ACM ACs */ 4609 tx_tspec->up = -1; 4610 4611 /* Make sure that all packets have been sent to avoid to 4612 * restore the QoS params on packets that are still on the 4613 * queues. 4614 */ 4615 synchronize_net(); 4616 ieee80211_flush_queues(local, sdata, false); 4617 4618 /* restore the normal QoS parameters 4619 * (unconditionally to avoid races) 4620 */ 4621 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4622 tx_tspec->downgraded = false; 4623 ieee80211_sta_handle_tspec_ac_params(sdata); 4624 4625 /* finally clear all the data */ 4626 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4627 4628 return 0; 4629 } 4630 4631 return -ENOENT; 4632 } 4633 4634 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4635 u8 inst_id, 4636 enum nl80211_nan_func_term_reason reason, 4637 gfp_t gfp) 4638 { 4639 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4640 struct cfg80211_nan_func *func; 4641 u64 cookie; 4642 4643 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4644 return; 4645 4646 spin_lock_bh(&sdata->u.nan.func_lock); 4647 4648 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4649 if (WARN_ON(!func)) { 4650 spin_unlock_bh(&sdata->u.nan.func_lock); 4651 return; 4652 } 4653 4654 cookie = func->cookie; 4655 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4656 4657 spin_unlock_bh(&sdata->u.nan.func_lock); 4658 4659 cfg80211_free_nan_func(func); 4660 4661 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4662 reason, cookie, gfp); 4663 } 4664 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4665 4666 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4667 struct cfg80211_nan_match_params *match, 4668 gfp_t gfp) 4669 { 4670 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4671 struct cfg80211_nan_func *func; 4672 4673 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4674 return; 4675 4676 spin_lock_bh(&sdata->u.nan.func_lock); 4677 4678 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4679 if (WARN_ON(!func)) { 4680 spin_unlock_bh(&sdata->u.nan.func_lock); 4681 return; 4682 } 4683 match->cookie = func->cookie; 4684 4685 spin_unlock_bh(&sdata->u.nan.func_lock); 4686 4687 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4688 } 4689 EXPORT_SYMBOL(ieee80211_nan_func_match); 4690 4691 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4692 struct net_device *dev, 4693 const bool enabled) 4694 { 4695 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4696 4697 sdata->u.ap.multicast_to_unicast = enabled; 4698 4699 return 0; 4700 } 4701 4702 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4703 struct txq_info *txqi) 4704 { 4705 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4706 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4707 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4708 } 4709 4710 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4711 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4712 txqstats->backlog_packets = txqi->tin.backlog_packets; 4713 } 4714 4715 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4716 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4717 txqstats->flows = txqi->tin.flows; 4718 } 4719 4720 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4721 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4722 txqstats->drops = txqi->cstats.drop_count; 4723 } 4724 4725 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4726 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4727 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4728 } 4729 4730 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4731 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4732 txqstats->overlimit = txqi->tin.overlimit; 4733 } 4734 4735 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4736 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4737 txqstats->collisions = txqi->tin.collisions; 4738 } 4739 4740 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4741 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4742 txqstats->tx_bytes = txqi->tin.tx_bytes; 4743 } 4744 4745 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4746 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4747 txqstats->tx_packets = txqi->tin.tx_packets; 4748 } 4749 } 4750 4751 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4752 struct wireless_dev *wdev, 4753 struct cfg80211_txq_stats *txqstats) 4754 { 4755 struct ieee80211_local *local = wiphy_priv(wiphy); 4756 struct ieee80211_sub_if_data *sdata; 4757 int ret = 0; 4758 4759 spin_lock_bh(&local->fq.lock); 4760 rcu_read_lock(); 4761 4762 if (wdev) { 4763 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4764 if (!sdata->vif.txq) { 4765 ret = 1; 4766 goto out; 4767 } 4768 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4769 } else { 4770 /* phy stats */ 4771 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4772 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4773 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4774 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4775 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4776 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4777 txqstats->backlog_packets = local->fq.backlog; 4778 txqstats->backlog_bytes = local->fq.memory_usage; 4779 txqstats->overlimit = local->fq.overlimit; 4780 txqstats->overmemory = local->fq.overmemory; 4781 txqstats->collisions = local->fq.collisions; 4782 txqstats->max_flows = local->fq.flows_cnt; 4783 } 4784 4785 out: 4786 rcu_read_unlock(); 4787 spin_unlock_bh(&local->fq.lock); 4788 4789 return ret; 4790 } 4791 4792 static int 4793 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4794 struct net_device *dev, 4795 struct cfg80211_ftm_responder_stats *ftm_stats) 4796 { 4797 struct ieee80211_local *local = wiphy_priv(wiphy); 4798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4799 4800 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4801 } 4802 4803 static int 4804 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4805 struct cfg80211_pmsr_request *request) 4806 { 4807 struct ieee80211_local *local = wiphy_priv(wiphy); 4808 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4809 4810 return drv_start_pmsr(local, sdata, request); 4811 } 4812 4813 static void 4814 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4815 struct cfg80211_pmsr_request *request) 4816 { 4817 struct ieee80211_local *local = wiphy_priv(wiphy); 4818 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4819 4820 return drv_abort_pmsr(local, sdata, request); 4821 } 4822 4823 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4824 struct net_device *dev, 4825 struct cfg80211_tid_config *tid_conf) 4826 { 4827 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4828 struct sta_info *sta; 4829 4830 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4831 4832 if (!sdata->local->ops->set_tid_config) 4833 return -EOPNOTSUPP; 4834 4835 if (!tid_conf->peer) 4836 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4837 4838 sta = sta_info_get_bss(sdata, tid_conf->peer); 4839 if (!sta) 4840 return -ENOENT; 4841 4842 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4843 } 4844 4845 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4846 struct net_device *dev, 4847 const u8 *peer, u8 tids) 4848 { 4849 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4850 struct sta_info *sta; 4851 4852 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4853 4854 if (!sdata->local->ops->reset_tid_config) 4855 return -EOPNOTSUPP; 4856 4857 if (!peer) 4858 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4859 4860 sta = sta_info_get_bss(sdata, peer); 4861 if (!sta) 4862 return -ENOENT; 4863 4864 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4865 } 4866 4867 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4868 struct cfg80211_sar_specs *sar) 4869 { 4870 struct ieee80211_local *local = wiphy_priv(wiphy); 4871 4872 if (!local->ops->set_sar_specs) 4873 return -EOPNOTSUPP; 4874 4875 return local->ops->set_sar_specs(&local->hw, sar); 4876 } 4877 4878 static int 4879 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4880 u64 *changed) 4881 { 4882 struct ieee80211_sub_if_data *sdata = link->sdata; 4883 4884 switch (sdata->vif.type) { 4885 case NL80211_IFTYPE_AP: { 4886 int ret; 4887 4888 if (!link->u.ap.next_beacon) 4889 return -EINVAL; 4890 4891 ret = ieee80211_assign_beacon(sdata, link, 4892 link->u.ap.next_beacon, 4893 NULL, NULL, changed); 4894 ieee80211_free_next_beacon(link); 4895 4896 if (ret < 0) 4897 return ret; 4898 4899 break; 4900 } 4901 default: 4902 WARN_ON_ONCE(1); 4903 return -EINVAL; 4904 } 4905 4906 return 0; 4907 } 4908 4909 static int 4910 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4911 struct cfg80211_color_change_settings *params, 4912 u64 *changed) 4913 { 4914 struct ieee80211_sub_if_data *sdata = link->sdata; 4915 struct ieee80211_color_change_settings color_change = {}; 4916 int err; 4917 4918 switch (sdata->vif.type) { 4919 case NL80211_IFTYPE_AP: 4920 link->u.ap.next_beacon = 4921 cfg80211_beacon_dup(¶ms->beacon_next); 4922 if (!link->u.ap.next_beacon) 4923 return -ENOMEM; 4924 4925 if (params->count <= 1) 4926 break; 4927 4928 color_change.counter_offset_beacon = 4929 params->counter_offset_beacon; 4930 color_change.counter_offset_presp = 4931 params->counter_offset_presp; 4932 color_change.count = params->count; 4933 4934 err = ieee80211_assign_beacon(sdata, link, 4935 ¶ms->beacon_color_change, 4936 NULL, &color_change, changed); 4937 if (err < 0) { 4938 ieee80211_free_next_beacon(link); 4939 return err; 4940 } 4941 break; 4942 default: 4943 return -EOPNOTSUPP; 4944 } 4945 4946 return 0; 4947 } 4948 4949 static void 4950 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4951 u8 color, int enable, u64 changed) 4952 { 4953 struct ieee80211_sub_if_data *sdata = link->sdata; 4954 4955 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4956 4957 link->conf->he_bss_color.color = color; 4958 link->conf->he_bss_color.enabled = enable; 4959 changed |= BSS_CHANGED_HE_BSS_COLOR; 4960 4961 ieee80211_link_info_change_notify(sdata, link, changed); 4962 4963 if (!link->conf->nontransmitted && 4964 rcu_access_pointer(link->conf->tx_bss_conf)) { 4965 struct ieee80211_link_data *tmp; 4966 4967 for_each_sdata_link(sdata->local, tmp) { 4968 if (tmp->sdata == sdata || 4969 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf) 4970 continue; 4971 4972 tmp->conf->he_bss_color.color = color; 4973 tmp->conf->he_bss_color.enabled = enable; 4974 ieee80211_link_info_change_notify(tmp->sdata, tmp, 4975 BSS_CHANGED_HE_BSS_COLOR); 4976 } 4977 } 4978 } 4979 4980 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4981 { 4982 struct ieee80211_sub_if_data *sdata = link->sdata; 4983 struct ieee80211_local *local = sdata->local; 4984 u64 changed = 0; 4985 int err; 4986 4987 lockdep_assert_wiphy(local->hw.wiphy); 4988 4989 link->conf->color_change_active = false; 4990 4991 err = ieee80211_set_after_color_change_beacon(link, &changed); 4992 if (err) { 4993 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4994 return err; 4995 } 4996 4997 ieee80211_color_change_bss_config_notify(link, 4998 link->conf->color_change_color, 4999 1, changed); 5000 cfg80211_color_change_notify(sdata->dev, link->link_id); 5001 5002 return 0; 5003 } 5004 5005 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 5006 struct wiphy_work *work) 5007 { 5008 struct ieee80211_link_data *link = 5009 container_of(work, struct ieee80211_link_data, 5010 color_change_finalize_work); 5011 struct ieee80211_sub_if_data *sdata = link->sdata; 5012 struct ieee80211_bss_conf *link_conf = link->conf; 5013 struct ieee80211_local *local = sdata->local; 5014 5015 lockdep_assert_wiphy(local->hw.wiphy); 5016 5017 /* AP might have been stopped while waiting for the lock. */ 5018 if (!link_conf->color_change_active) 5019 return; 5020 5021 if (!ieee80211_sdata_running(sdata)) 5022 return; 5023 5024 ieee80211_color_change_finalize(link); 5025 } 5026 5027 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 5028 struct wiphy_work *work) 5029 { 5030 struct ieee80211_link_data *link = 5031 container_of(work, struct ieee80211_link_data, 5032 color_collision_detect_work.work); 5033 struct ieee80211_sub_if_data *sdata = link->sdata; 5034 5035 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 5036 link->link_id); 5037 } 5038 5039 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 5040 { 5041 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5042 struct ieee80211_link_data *link; 5043 5044 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5045 return; 5046 5047 rcu_read_lock(); 5048 5049 link = rcu_dereference(sdata->link[link_id]); 5050 if (WARN_ON(!link)) { 5051 rcu_read_unlock(); 5052 return; 5053 } 5054 5055 wiphy_work_queue(sdata->local->hw.wiphy, 5056 &link->color_change_finalize_work); 5057 5058 rcu_read_unlock(); 5059 } 5060 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 5061 5062 void 5063 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 5064 u64 color_bitmap, u8 link_id) 5065 { 5066 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5067 struct ieee80211_link_data *link; 5068 5069 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5070 return; 5071 5072 rcu_read_lock(); 5073 5074 link = rcu_dereference(sdata->link[link_id]); 5075 if (WARN_ON(!link)) { 5076 rcu_read_unlock(); 5077 return; 5078 } 5079 5080 if (link->conf->color_change_active || link->conf->csa_active) { 5081 rcu_read_unlock(); 5082 return; 5083 } 5084 5085 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 5086 &link->color_collision_detect_work)) { 5087 rcu_read_unlock(); 5088 return; 5089 } 5090 5091 link->color_bitmap = color_bitmap; 5092 /* queue the color collision detection event every 500 ms in order to 5093 * avoid sending too much netlink messages to userspace. 5094 */ 5095 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 5096 &link->color_collision_detect_work, 5097 msecs_to_jiffies(500)); 5098 5099 rcu_read_unlock(); 5100 } 5101 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 5102 5103 static int 5104 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 5105 struct cfg80211_color_change_settings *params) 5106 { 5107 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5108 struct ieee80211_local *local = sdata->local; 5109 struct ieee80211_bss_conf *link_conf; 5110 struct ieee80211_link_data *link; 5111 u8 link_id = params->link_id; 5112 u64 changed = 0; 5113 int err; 5114 5115 lockdep_assert_wiphy(local->hw.wiphy); 5116 5117 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5118 return -EINVAL; 5119 5120 link = wiphy_dereference(wiphy, sdata->link[link_id]); 5121 if (!link) 5122 return -ENOLINK; 5123 5124 link_conf = link->conf; 5125 5126 if (link_conf->nontransmitted) 5127 return -EINVAL; 5128 5129 /* don't allow another color change if one is already active or if csa 5130 * is active 5131 */ 5132 if (link_conf->color_change_active || link_conf->csa_active) { 5133 err = -EBUSY; 5134 goto out; 5135 } 5136 5137 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 5138 ¶ms->unsol_bcast_probe_resp, 5139 link, link_conf, &changed); 5140 if (err) 5141 goto out; 5142 5143 err = ieee80211_set_color_change_beacon(link, params, &changed); 5144 if (err) 5145 goto out; 5146 5147 link_conf->color_change_active = true; 5148 link_conf->color_change_color = params->color; 5149 5150 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5151 5152 if (changed) 5153 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5154 else 5155 /* if the beacon didn't change, we can finalize immediately */ 5156 ieee80211_color_change_finalize(link); 5157 5158 out: 5159 5160 return err; 5161 } 5162 5163 static int 5164 ieee80211_set_radar_background(struct wiphy *wiphy, 5165 struct cfg80211_chan_def *chandef) 5166 { 5167 struct ieee80211_local *local = wiphy_priv(wiphy); 5168 5169 if (!local->ops->set_radar_background) 5170 return -EOPNOTSUPP; 5171 5172 return local->ops->set_radar_background(&local->hw, chandef); 5173 } 5174 5175 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5176 struct wireless_dev *wdev, 5177 unsigned int link_id) 5178 { 5179 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5180 5181 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5182 5183 if (wdev->use_4addr) 5184 return -EOPNOTSUPP; 5185 5186 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5187 } 5188 5189 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5190 struct wireless_dev *wdev, 5191 unsigned int link_id) 5192 { 5193 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5194 u16 new_links = wdev->valid_links & ~BIT(link_id); 5195 5196 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5197 5198 /* During the link teardown process, certain functions require the 5199 * link_id to remain in the valid_links bitmap. Therefore, instead 5200 * of removing the link_id from the bitmap, pass a masked value to 5201 * simulate as if link_id does not exist anymore. 5202 */ 5203 ieee80211_vif_set_links(sdata, new_links, 0); 5204 } 5205 5206 static int 5207 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5208 struct link_station_parameters *params) 5209 { 5210 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5211 struct ieee80211_local *local = wiphy_priv(wiphy); 5212 struct sta_info *sta; 5213 int ret; 5214 5215 lockdep_assert_wiphy(local->hw.wiphy); 5216 5217 sta = sta_info_get_bss(sdata, params->mld_mac); 5218 if (!sta) 5219 return -ENOENT; 5220 5221 if (!sta->sta.valid_links) 5222 return -EINVAL; 5223 5224 if (sta->sta.valid_links & BIT(params->link_id)) 5225 return -EALREADY; 5226 5227 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5228 if (ret) 5229 return ret; 5230 5231 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5232 if (ret) { 5233 ieee80211_sta_free_link(sta, params->link_id); 5234 return ret; 5235 } 5236 5237 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5238 struct link_sta_info *link_sta; 5239 5240 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5241 rate_control_rate_init(link_sta); 5242 } 5243 5244 /* ieee80211_sta_activate_link frees the link upon failure */ 5245 return ieee80211_sta_activate_link(sta, params->link_id); 5246 } 5247 5248 static int 5249 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5250 struct link_station_parameters *params) 5251 { 5252 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5253 struct ieee80211_local *local = wiphy_priv(wiphy); 5254 struct sta_info *sta; 5255 5256 lockdep_assert_wiphy(local->hw.wiphy); 5257 5258 sta = sta_info_get_bss(sdata, params->mld_mac); 5259 if (!sta) 5260 return -ENOENT; 5261 5262 if (!(sta->sta.valid_links & BIT(params->link_id))) 5263 return -EINVAL; 5264 5265 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5266 params); 5267 } 5268 5269 static int 5270 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5271 struct link_station_del_parameters *params) 5272 { 5273 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5274 struct sta_info *sta; 5275 5276 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5277 5278 sta = sta_info_get_bss(sdata, params->mld_mac); 5279 if (!sta) 5280 return -ENOENT; 5281 5282 if (!(sta->sta.valid_links & BIT(params->link_id))) 5283 return -EINVAL; 5284 5285 /* must not create a STA without links */ 5286 if (sta->sta.valid_links == BIT(params->link_id)) 5287 return -EINVAL; 5288 5289 ieee80211_sta_remove_link(sta, params->link_id); 5290 5291 return 0; 5292 } 5293 5294 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5295 struct net_device *dev, 5296 struct cfg80211_set_hw_timestamp *hwts) 5297 { 5298 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5299 struct ieee80211_local *local = sdata->local; 5300 5301 if (!local->ops->set_hw_timestamp) 5302 return -EOPNOTSUPP; 5303 5304 if (!check_sdata_in_driver(sdata)) 5305 return -EIO; 5306 5307 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5308 } 5309 5310 static int 5311 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5312 struct cfg80211_ttlm_params *params) 5313 { 5314 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5315 5316 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5317 5318 return ieee80211_req_neg_ttlm(sdata, params); 5319 } 5320 5321 static int 5322 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5323 struct cfg80211_ml_reconf_req *req) 5324 { 5325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5326 5327 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5328 5329 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5330 } 5331 5332 static int 5333 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5334 { 5335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5336 5337 return ieee80211_mgd_set_epcs(sdata, enable); 5338 } 5339 5340 const struct cfg80211_ops mac80211_config_ops = { 5341 .add_virtual_intf = ieee80211_add_iface, 5342 .del_virtual_intf = ieee80211_del_iface, 5343 .change_virtual_intf = ieee80211_change_iface, 5344 .start_p2p_device = ieee80211_start_p2p_device, 5345 .stop_p2p_device = ieee80211_stop_p2p_device, 5346 .add_key = ieee80211_add_key, 5347 .del_key = ieee80211_del_key, 5348 .get_key = ieee80211_get_key, 5349 .set_default_key = ieee80211_config_default_key, 5350 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5351 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5352 .start_ap = ieee80211_start_ap, 5353 .change_beacon = ieee80211_change_beacon, 5354 .stop_ap = ieee80211_stop_ap, 5355 .add_station = ieee80211_add_station, 5356 .del_station = ieee80211_del_station, 5357 .change_station = ieee80211_change_station, 5358 .get_station = ieee80211_get_station, 5359 .dump_station = ieee80211_dump_station, 5360 .dump_survey = ieee80211_dump_survey, 5361 #ifdef CONFIG_MAC80211_MESH 5362 .add_mpath = ieee80211_add_mpath, 5363 .del_mpath = ieee80211_del_mpath, 5364 .change_mpath = ieee80211_change_mpath, 5365 .get_mpath = ieee80211_get_mpath, 5366 .dump_mpath = ieee80211_dump_mpath, 5367 .get_mpp = ieee80211_get_mpp, 5368 .dump_mpp = ieee80211_dump_mpp, 5369 .update_mesh_config = ieee80211_update_mesh_config, 5370 .get_mesh_config = ieee80211_get_mesh_config, 5371 .join_mesh = ieee80211_join_mesh, 5372 .leave_mesh = ieee80211_leave_mesh, 5373 #endif 5374 .join_ocb = ieee80211_join_ocb, 5375 .leave_ocb = ieee80211_leave_ocb, 5376 .change_bss = ieee80211_change_bss, 5377 .inform_bss = ieee80211_inform_bss, 5378 .set_txq_params = ieee80211_set_txq_params, 5379 .set_monitor_channel = ieee80211_set_monitor_channel, 5380 .suspend = ieee80211_suspend, 5381 .resume = ieee80211_resume, 5382 .scan = ieee80211_scan, 5383 .abort_scan = ieee80211_abort_scan, 5384 .sched_scan_start = ieee80211_sched_scan_start, 5385 .sched_scan_stop = ieee80211_sched_scan_stop, 5386 .auth = ieee80211_auth, 5387 .assoc = ieee80211_assoc, 5388 .deauth = ieee80211_deauth, 5389 .disassoc = ieee80211_disassoc, 5390 .join_ibss = ieee80211_join_ibss, 5391 .leave_ibss = ieee80211_leave_ibss, 5392 .set_mcast_rate = ieee80211_set_mcast_rate, 5393 .set_wiphy_params = ieee80211_set_wiphy_params, 5394 .set_tx_power = ieee80211_set_tx_power, 5395 .get_tx_power = ieee80211_get_tx_power, 5396 .rfkill_poll = ieee80211_rfkill_poll, 5397 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5398 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5399 .set_power_mgmt = ieee80211_set_power_mgmt, 5400 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5401 .remain_on_channel = ieee80211_remain_on_channel, 5402 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5403 .mgmt_tx = ieee80211_mgmt_tx, 5404 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5405 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5406 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5407 .update_mgmt_frame_registrations = 5408 ieee80211_update_mgmt_frame_registrations, 5409 .set_antenna = ieee80211_set_antenna, 5410 .get_antenna = ieee80211_get_antenna, 5411 .set_rekey_data = ieee80211_set_rekey_data, 5412 .tdls_oper = ieee80211_tdls_oper, 5413 .tdls_mgmt = ieee80211_tdls_mgmt, 5414 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5415 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5416 .probe_client = ieee80211_probe_client, 5417 .set_noack_map = ieee80211_set_noack_map, 5418 #ifdef CONFIG_PM 5419 .set_wakeup = ieee80211_set_wakeup, 5420 #endif 5421 .get_channel = ieee80211_cfg_get_channel, 5422 .start_radar_detection = ieee80211_start_radar_detection, 5423 .end_cac = ieee80211_end_cac, 5424 .channel_switch = ieee80211_channel_switch, 5425 .set_qos_map = ieee80211_set_qos_map, 5426 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5427 .add_tx_ts = ieee80211_add_tx_ts, 5428 .del_tx_ts = ieee80211_del_tx_ts, 5429 .start_nan = ieee80211_start_nan, 5430 .stop_nan = ieee80211_stop_nan, 5431 .nan_change_conf = ieee80211_nan_change_conf, 5432 .add_nan_func = ieee80211_add_nan_func, 5433 .del_nan_func = ieee80211_del_nan_func, 5434 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5435 .tx_control_port = ieee80211_tx_control_port, 5436 .get_txq_stats = ieee80211_get_txq_stats, 5437 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5438 .start_pmsr = ieee80211_start_pmsr, 5439 .abort_pmsr = ieee80211_abort_pmsr, 5440 .probe_mesh_link = ieee80211_probe_mesh_link, 5441 .set_tid_config = ieee80211_set_tid_config, 5442 .reset_tid_config = ieee80211_reset_tid_config, 5443 .set_sar_specs = ieee80211_set_sar_specs, 5444 .color_change = ieee80211_color_change, 5445 .set_radar_background = ieee80211_set_radar_background, 5446 .add_intf_link = ieee80211_add_intf_link, 5447 .del_intf_link = ieee80211_del_intf_link, 5448 .add_link_station = ieee80211_add_link_station, 5449 .mod_link_station = ieee80211_mod_link_station, 5450 .del_link_station = ieee80211_del_link_station, 5451 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5452 .set_ttlm = ieee80211_set_ttlm, 5453 .get_radio_mask = ieee80211_get_radio_mask, 5454 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5455 .set_epcs = ieee80211_set_epcs, 5456 }; 5457