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 } 182 if (params->ema) 183 link_conf->ema_ap = true; 184 185 return 0; 186 } 187 188 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 189 const char *name, 190 unsigned char name_assign_type, 191 enum nl80211_iftype type, 192 struct vif_params *params) 193 { 194 struct ieee80211_local *local = wiphy_priv(wiphy); 195 struct wireless_dev *wdev; 196 struct ieee80211_sub_if_data *sdata; 197 int err; 198 199 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 200 if (err) 201 return ERR_PTR(err); 202 203 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 205 if (type == NL80211_IFTYPE_MONITOR) { 206 err = ieee80211_set_mon_options(sdata, params); 207 if (err) { 208 ieee80211_if_remove(sdata); 209 return NULL; 210 } 211 } 212 213 /* Let the driver know that an interface is going to be added. 214 * Indicate so only for interface types that will be added to the 215 * driver. 216 */ 217 switch (type) { 218 case NL80211_IFTYPE_AP_VLAN: 219 break; 220 case NL80211_IFTYPE_MONITOR: 221 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 222 !(params->flags & MONITOR_FLAG_ACTIVE)) 223 break; 224 fallthrough; 225 default: 226 drv_prep_add_interface(local, 227 ieee80211_vif_type_p2p(&sdata->vif)); 228 break; 229 } 230 231 return wdev; 232 } 233 234 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 235 { 236 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 237 238 return 0; 239 } 240 241 static int ieee80211_change_iface(struct wiphy *wiphy, 242 struct net_device *dev, 243 enum nl80211_iftype type, 244 struct vif_params *params) 245 { 246 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 247 struct ieee80211_local *local = sdata->local; 248 struct sta_info *sta; 249 int ret; 250 251 lockdep_assert_wiphy(local->hw.wiphy); 252 253 ret = ieee80211_if_change_type(sdata, type); 254 if (ret) 255 return ret; 256 257 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 258 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 259 ieee80211_check_fast_rx_iface(sdata); 260 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 261 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 262 263 if (params->use_4addr == ifmgd->use_4addr) 264 return 0; 265 266 /* FIXME: no support for 4-addr MLO yet */ 267 if (ieee80211_vif_is_mld(&sdata->vif)) 268 return -EOPNOTSUPP; 269 270 sdata->u.mgd.use_4addr = params->use_4addr; 271 if (!ifmgd->associated) 272 return 0; 273 274 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 275 if (sta) 276 drv_sta_set_4addr(local, sdata, &sta->sta, 277 params->use_4addr); 278 279 if (params->use_4addr) 280 ieee80211_send_4addr_nullfunc(local, sdata); 281 } 282 283 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 284 ret = ieee80211_set_mon_options(sdata, params); 285 if (ret) 286 return ret; 287 } 288 289 return 0; 290 } 291 292 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 293 struct wireless_dev *wdev) 294 { 295 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 296 int ret; 297 298 lockdep_assert_wiphy(sdata->local->hw.wiphy); 299 300 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 301 if (ret < 0) 302 return ret; 303 304 return ieee80211_do_open(wdev, true); 305 } 306 307 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 308 struct wireless_dev *wdev) 309 { 310 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 311 } 312 313 static int ieee80211_start_nan(struct wiphy *wiphy, 314 struct wireless_dev *wdev, 315 struct cfg80211_nan_conf *conf) 316 { 317 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 318 int ret; 319 320 lockdep_assert_wiphy(sdata->local->hw.wiphy); 321 322 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 323 if (ret < 0) 324 return ret; 325 326 ret = ieee80211_do_open(wdev, true); 327 if (ret) 328 return ret; 329 330 ret = drv_start_nan(sdata->local, sdata, conf); 331 if (ret) 332 ieee80211_sdata_stop(sdata); 333 334 sdata->u.nan.conf = *conf; 335 336 return ret; 337 } 338 339 static void ieee80211_stop_nan(struct wiphy *wiphy, 340 struct wireless_dev *wdev) 341 { 342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 343 344 drv_stop_nan(sdata->local, sdata); 345 ieee80211_sdata_stop(sdata); 346 } 347 348 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 349 struct wireless_dev *wdev, 350 struct cfg80211_nan_conf *conf, 351 u32 changes) 352 { 353 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 354 struct cfg80211_nan_conf new_conf; 355 int ret = 0; 356 357 if (sdata->vif.type != NL80211_IFTYPE_NAN) 358 return -EOPNOTSUPP; 359 360 if (!ieee80211_sdata_running(sdata)) 361 return -ENETDOWN; 362 363 new_conf = sdata->u.nan.conf; 364 365 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 366 new_conf.master_pref = conf->master_pref; 367 368 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 369 new_conf.bands = conf->bands; 370 371 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 372 if (!ret) 373 sdata->u.nan.conf = new_conf; 374 375 return ret; 376 } 377 378 static int ieee80211_add_nan_func(struct wiphy *wiphy, 379 struct wireless_dev *wdev, 380 struct cfg80211_nan_func *nan_func) 381 { 382 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 383 int ret; 384 385 if (sdata->vif.type != NL80211_IFTYPE_NAN) 386 return -EOPNOTSUPP; 387 388 if (!ieee80211_sdata_running(sdata)) 389 return -ENETDOWN; 390 391 spin_lock_bh(&sdata->u.nan.func_lock); 392 393 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 394 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 395 GFP_ATOMIC); 396 spin_unlock_bh(&sdata->u.nan.func_lock); 397 398 if (ret < 0) 399 return ret; 400 401 nan_func->instance_id = ret; 402 403 WARN_ON(nan_func->instance_id == 0); 404 405 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 406 if (ret) { 407 spin_lock_bh(&sdata->u.nan.func_lock); 408 idr_remove(&sdata->u.nan.function_inst_ids, 409 nan_func->instance_id); 410 spin_unlock_bh(&sdata->u.nan.func_lock); 411 } 412 413 return ret; 414 } 415 416 static struct cfg80211_nan_func * 417 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 418 u64 cookie) 419 { 420 struct cfg80211_nan_func *func; 421 int id; 422 423 lockdep_assert_held(&sdata->u.nan.func_lock); 424 425 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 426 if (func->cookie == cookie) 427 return func; 428 } 429 430 return NULL; 431 } 432 433 static void ieee80211_del_nan_func(struct wiphy *wiphy, 434 struct wireless_dev *wdev, u64 cookie) 435 { 436 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 437 struct cfg80211_nan_func *func; 438 u8 instance_id = 0; 439 440 if (sdata->vif.type != NL80211_IFTYPE_NAN || 441 !ieee80211_sdata_running(sdata)) 442 return; 443 444 spin_lock_bh(&sdata->u.nan.func_lock); 445 446 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 447 if (func) 448 instance_id = func->instance_id; 449 450 spin_unlock_bh(&sdata->u.nan.func_lock); 451 452 if (instance_id) 453 drv_del_nan_func(sdata->local, sdata, instance_id); 454 } 455 456 static int ieee80211_set_noack_map(struct wiphy *wiphy, 457 struct net_device *dev, 458 u16 noack_map) 459 { 460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 461 462 sdata->noack_map = noack_map; 463 464 ieee80211_check_fast_xmit_iface(sdata); 465 466 return 0; 467 } 468 469 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 470 const u8 *mac_addr, u8 key_idx) 471 { 472 struct ieee80211_local *local = sdata->local; 473 struct ieee80211_key *key; 474 struct sta_info *sta; 475 int ret = -EINVAL; 476 477 if (!wiphy_ext_feature_isset(local->hw.wiphy, 478 NL80211_EXT_FEATURE_EXT_KEY_ID)) 479 return -EINVAL; 480 481 sta = sta_info_get_bss(sdata, mac_addr); 482 483 if (!sta) 484 return -EINVAL; 485 486 if (sta->ptk_idx == key_idx) 487 return 0; 488 489 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 490 491 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 492 ret = ieee80211_set_tx_key(key); 493 494 return ret; 495 } 496 497 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 498 int link_id, u8 key_idx, bool pairwise, 499 const u8 *mac_addr, struct key_params *params) 500 { 501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 502 struct ieee80211_link_data *link = 503 ieee80211_link_or_deflink(sdata, link_id, false); 504 struct ieee80211_local *local = sdata->local; 505 struct sta_info *sta = NULL; 506 struct ieee80211_key *key; 507 int err; 508 509 lockdep_assert_wiphy(local->hw.wiphy); 510 511 if (!ieee80211_sdata_running(sdata)) 512 return -ENETDOWN; 513 514 if (IS_ERR(link)) 515 return PTR_ERR(link); 516 517 if (WARN_ON(pairwise && link_id >= 0)) 518 return -EINVAL; 519 520 if (pairwise && params->mode == NL80211_KEY_SET_TX) 521 return ieee80211_set_tx(sdata, mac_addr, key_idx); 522 523 /* reject WEP and TKIP keys if WEP failed to initialize */ 524 switch (params->cipher) { 525 case WLAN_CIPHER_SUITE_WEP40: 526 case WLAN_CIPHER_SUITE_TKIP: 527 case WLAN_CIPHER_SUITE_WEP104: 528 if (link_id >= 0) 529 return -EINVAL; 530 if (WARN_ON_ONCE(fips_enabled)) 531 return -EINVAL; 532 break; 533 default: 534 break; 535 } 536 537 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 538 params->key, params->seq_len, params->seq); 539 if (IS_ERR(key)) 540 return PTR_ERR(key); 541 542 if (pairwise) { 543 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 544 key->conf.link_id = -1; 545 } else { 546 key->conf.link_id = link->link_id; 547 } 548 549 if (params->mode == NL80211_KEY_NO_TX) 550 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 551 552 if (mac_addr) { 553 sta = sta_info_get_bss(sdata, mac_addr); 554 /* 555 * The ASSOC test makes sure the driver is ready to 556 * receive the key. When wpa_supplicant has roamed 557 * using FT, it attempts to set the key before 558 * association has completed, this rejects that attempt 559 * so it will set the key again after association. 560 * 561 * TODO: accept the key if we have a station entry and 562 * add it to the device after the station. 563 */ 564 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 565 ieee80211_key_free_unused(key); 566 return -ENOENT; 567 } 568 } 569 570 switch (sdata->vif.type) { 571 case NL80211_IFTYPE_STATION: 572 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 573 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 574 break; 575 case NL80211_IFTYPE_AP: 576 case NL80211_IFTYPE_AP_VLAN: 577 /* Keys without a station are used for TX only */ 578 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 579 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 580 break; 581 case NL80211_IFTYPE_ADHOC: 582 /* no MFP (yet) */ 583 break; 584 case NL80211_IFTYPE_MESH_POINT: 585 #ifdef CONFIG_MAC80211_MESH 586 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 587 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 588 break; 589 #endif 590 case NL80211_IFTYPE_WDS: 591 case NL80211_IFTYPE_MONITOR: 592 case NL80211_IFTYPE_P2P_DEVICE: 593 case NL80211_IFTYPE_NAN: 594 case NL80211_IFTYPE_UNSPECIFIED: 595 case NUM_NL80211_IFTYPES: 596 case NL80211_IFTYPE_P2P_CLIENT: 597 case NL80211_IFTYPE_P2P_GO: 598 case NL80211_IFTYPE_OCB: 599 /* shouldn't happen */ 600 WARN_ON_ONCE(1); 601 break; 602 } 603 604 err = ieee80211_key_link(key, link, sta); 605 /* KRACK protection, shouldn't happen but just silently accept key */ 606 if (err == -EALREADY) 607 err = 0; 608 609 return err; 610 } 611 612 static struct ieee80211_key * 613 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 614 u8 key_idx, bool pairwise, const u8 *mac_addr) 615 { 616 struct ieee80211_local *local __maybe_unused = sdata->local; 617 struct ieee80211_link_data *link = &sdata->deflink; 618 struct ieee80211_key *key; 619 620 if (link_id >= 0) { 621 link = sdata_dereference(sdata->link[link_id], sdata); 622 if (!link) 623 return NULL; 624 } 625 626 if (mac_addr) { 627 struct sta_info *sta; 628 struct link_sta_info *link_sta; 629 630 sta = sta_info_get_bss(sdata, mac_addr); 631 if (!sta) 632 return NULL; 633 634 if (link_id >= 0) { 635 link_sta = rcu_dereference_check(sta->link[link_id], 636 lockdep_is_held(&local->hw.wiphy->mtx)); 637 if (!link_sta) 638 return NULL; 639 } else { 640 link_sta = &sta->deflink; 641 } 642 643 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 644 return wiphy_dereference(local->hw.wiphy, 645 sta->ptk[key_idx]); 646 647 if (!pairwise && 648 key_idx < NUM_DEFAULT_KEYS + 649 NUM_DEFAULT_MGMT_KEYS + 650 NUM_DEFAULT_BEACON_KEYS) 651 return wiphy_dereference(local->hw.wiphy, 652 link_sta->gtk[key_idx]); 653 654 return NULL; 655 } 656 657 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 658 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 659 660 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 661 if (key) 662 return key; 663 664 /* or maybe it was a WEP key */ 665 if (key_idx < NUM_DEFAULT_KEYS) 666 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 667 668 return NULL; 669 } 670 671 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 672 int link_id, u8 key_idx, bool pairwise, 673 const u8 *mac_addr) 674 { 675 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 676 struct ieee80211_local *local = sdata->local; 677 struct ieee80211_key *key; 678 679 lockdep_assert_wiphy(local->hw.wiphy); 680 681 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 682 if (!key) 683 return -ENOENT; 684 685 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 686 687 return 0; 688 } 689 690 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 691 int link_id, u8 key_idx, bool pairwise, 692 const u8 *mac_addr, void *cookie, 693 void (*callback)(void *cookie, 694 struct key_params *params)) 695 { 696 struct ieee80211_sub_if_data *sdata; 697 u8 seq[6] = {0}; 698 struct key_params params; 699 struct ieee80211_key *key; 700 u64 pn64; 701 u32 iv32; 702 u16 iv16; 703 int err = -ENOENT; 704 struct ieee80211_key_seq kseq = {}; 705 706 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 707 708 rcu_read_lock(); 709 710 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 711 if (!key) 712 goto out; 713 714 memset(¶ms, 0, sizeof(params)); 715 716 params.cipher = key->conf.cipher; 717 718 switch (key->conf.cipher) { 719 case WLAN_CIPHER_SUITE_TKIP: 720 pn64 = atomic64_read(&key->conf.tx_pn); 721 iv32 = TKIP_PN_TO_IV32(pn64); 722 iv16 = TKIP_PN_TO_IV16(pn64); 723 724 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 725 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 726 drv_get_key_seq(sdata->local, key, &kseq); 727 iv32 = kseq.tkip.iv32; 728 iv16 = kseq.tkip.iv16; 729 } 730 731 seq[0] = iv16 & 0xff; 732 seq[1] = (iv16 >> 8) & 0xff; 733 seq[2] = iv32 & 0xff; 734 seq[3] = (iv32 >> 8) & 0xff; 735 seq[4] = (iv32 >> 16) & 0xff; 736 seq[5] = (iv32 >> 24) & 0xff; 737 params.seq = seq; 738 params.seq_len = 6; 739 break; 740 case WLAN_CIPHER_SUITE_CCMP: 741 case WLAN_CIPHER_SUITE_CCMP_256: 742 case WLAN_CIPHER_SUITE_AES_CMAC: 743 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 744 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 745 offsetof(typeof(kseq), aes_cmac)); 746 fallthrough; 747 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 748 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 749 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 750 offsetof(typeof(kseq), aes_gmac)); 751 fallthrough; 752 case WLAN_CIPHER_SUITE_GCMP: 753 case WLAN_CIPHER_SUITE_GCMP_256: 754 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 755 offsetof(typeof(kseq), gcmp)); 756 757 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 758 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 759 drv_get_key_seq(sdata->local, key, &kseq); 760 memcpy(seq, kseq.ccmp.pn, 6); 761 } else { 762 pn64 = atomic64_read(&key->conf.tx_pn); 763 seq[0] = pn64; 764 seq[1] = pn64 >> 8; 765 seq[2] = pn64 >> 16; 766 seq[3] = pn64 >> 24; 767 seq[4] = pn64 >> 32; 768 seq[5] = pn64 >> 40; 769 } 770 params.seq = seq; 771 params.seq_len = 6; 772 break; 773 default: 774 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 775 break; 776 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 777 break; 778 drv_get_key_seq(sdata->local, key, &kseq); 779 params.seq = kseq.hw.seq; 780 params.seq_len = kseq.hw.seq_len; 781 break; 782 } 783 784 callback(cookie, ¶ms); 785 err = 0; 786 787 out: 788 rcu_read_unlock(); 789 return err; 790 } 791 792 static int ieee80211_config_default_key(struct wiphy *wiphy, 793 struct net_device *dev, 794 int link_id, u8 key_idx, bool uni, 795 bool multi) 796 { 797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 798 struct ieee80211_link_data *link = 799 ieee80211_link_or_deflink(sdata, link_id, false); 800 801 if (IS_ERR(link)) 802 return PTR_ERR(link); 803 804 ieee80211_set_default_key(link, key_idx, uni, multi); 805 806 return 0; 807 } 808 809 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 810 struct net_device *dev, 811 int link_id, u8 key_idx) 812 { 813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 814 struct ieee80211_link_data *link = 815 ieee80211_link_or_deflink(sdata, link_id, true); 816 817 if (IS_ERR(link)) 818 return PTR_ERR(link); 819 820 ieee80211_set_default_mgmt_key(link, key_idx); 821 822 return 0; 823 } 824 825 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 826 struct net_device *dev, 827 int link_id, u8 key_idx) 828 { 829 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 830 struct ieee80211_link_data *link = 831 ieee80211_link_or_deflink(sdata, link_id, true); 832 833 if (IS_ERR(link)) 834 return PTR_ERR(link); 835 836 ieee80211_set_default_beacon_key(link, key_idx); 837 838 return 0; 839 } 840 841 void sta_set_rate_info_tx(struct sta_info *sta, 842 const struct ieee80211_tx_rate *rate, 843 struct rate_info *rinfo) 844 { 845 rinfo->flags = 0; 846 if (rate->flags & IEEE80211_TX_RC_MCS) { 847 rinfo->flags |= RATE_INFO_FLAGS_MCS; 848 rinfo->mcs = rate->idx; 849 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 850 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 851 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 852 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 853 } else { 854 struct ieee80211_supported_band *sband; 855 856 sband = ieee80211_get_sband(sta->sdata); 857 WARN_ON_ONCE(sband && !sband->bitrates); 858 if (sband && sband->bitrates) 859 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 860 } 861 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 862 rinfo->bw = RATE_INFO_BW_40; 863 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 864 rinfo->bw = RATE_INFO_BW_80; 865 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 866 rinfo->bw = RATE_INFO_BW_160; 867 else 868 rinfo->bw = RATE_INFO_BW_20; 869 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 870 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 871 } 872 873 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 874 int idx, u8 *mac, struct station_info *sinfo) 875 { 876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 877 struct ieee80211_local *local = sdata->local; 878 struct sta_info *sta; 879 int ret = -ENOENT; 880 881 lockdep_assert_wiphy(local->hw.wiphy); 882 883 sta = sta_info_get_by_idx(sdata, idx); 884 if (sta) { 885 ret = 0; 886 memcpy(mac, sta->sta.addr, ETH_ALEN); 887 sta_set_sinfo(sta, sinfo, true); 888 } 889 890 return ret; 891 } 892 893 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 894 int idx, struct survey_info *survey) 895 { 896 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 897 898 return drv_get_survey(local, idx, survey); 899 } 900 901 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 902 const u8 *mac, struct station_info *sinfo) 903 { 904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 905 struct ieee80211_local *local = sdata->local; 906 struct sta_info *sta; 907 int ret = -ENOENT; 908 909 lockdep_assert_wiphy(local->hw.wiphy); 910 911 sta = sta_info_get_bss(sdata, mac); 912 if (sta) { 913 ret = 0; 914 sta_set_sinfo(sta, sinfo, true); 915 } 916 917 return ret; 918 } 919 920 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 921 struct net_device *dev, 922 struct cfg80211_chan_def *chandef) 923 { 924 struct ieee80211_local *local = wiphy_priv(wiphy); 925 struct ieee80211_sub_if_data *sdata; 926 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 927 int ret; 928 929 lockdep_assert_wiphy(local->hw.wiphy); 930 931 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 932 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 933 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 934 &chanreq.oper)) 935 return 0; 936 937 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 938 if (!sdata) 939 goto done; 940 } 941 942 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 943 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 944 &chanreq.oper)) 945 return 0; 946 947 ieee80211_link_release_channel(&sdata->deflink); 948 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 949 IEEE80211_CHANCTX_SHARED); 950 if (ret) 951 return ret; 952 done: 953 local->monitor_chanreq = chanreq; 954 return 0; 955 } 956 957 static int 958 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 959 const u8 *resp, size_t resp_len, 960 const struct ieee80211_csa_settings *csa, 961 const struct ieee80211_color_change_settings *cca, 962 struct ieee80211_link_data *link) 963 { 964 struct probe_resp *new, *old; 965 966 if (!resp || !resp_len) 967 return 1; 968 969 old = sdata_dereference(link->u.ap.probe_resp, sdata); 970 971 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 972 if (!new) 973 return -ENOMEM; 974 975 new->len = resp_len; 976 memcpy(new->data, resp, resp_len); 977 978 if (csa) 979 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 980 csa->n_counter_offsets_presp * 981 sizeof(new->cntdwn_counter_offsets[0])); 982 else if (cca) 983 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 984 985 rcu_assign_pointer(link->u.ap.probe_resp, new); 986 if (old) 987 kfree_rcu(old, rcu_head); 988 989 return 0; 990 } 991 992 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 993 struct cfg80211_fils_discovery *params, 994 struct ieee80211_link_data *link, 995 struct ieee80211_bss_conf *link_conf, 996 u64 *changed) 997 { 998 struct fils_discovery_data *new, *old = NULL; 999 struct ieee80211_fils_discovery *fd; 1000 1001 if (!params->update) 1002 return 0; 1003 1004 fd = &link_conf->fils_discovery; 1005 fd->min_interval = params->min_interval; 1006 fd->max_interval = params->max_interval; 1007 1008 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 1009 if (old) 1010 kfree_rcu(old, rcu_head); 1011 1012 if (params->tmpl && params->tmpl_len) { 1013 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1014 if (!new) 1015 return -ENOMEM; 1016 new->len = params->tmpl_len; 1017 memcpy(new->data, params->tmpl, params->tmpl_len); 1018 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1019 } else { 1020 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1021 } 1022 1023 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1024 return 0; 1025 } 1026 1027 static int 1028 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1029 struct cfg80211_unsol_bcast_probe_resp *params, 1030 struct ieee80211_link_data *link, 1031 struct ieee80211_bss_conf *link_conf, 1032 u64 *changed) 1033 { 1034 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1035 1036 if (!params->update) 1037 return 0; 1038 1039 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1040 1041 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1042 if (old) 1043 kfree_rcu(old, rcu_head); 1044 1045 if (params->tmpl && params->tmpl_len) { 1046 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1047 if (!new) 1048 return -ENOMEM; 1049 new->len = params->tmpl_len; 1050 memcpy(new->data, params->tmpl, params->tmpl_len); 1051 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1052 } else { 1053 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1054 } 1055 1056 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1057 return 0; 1058 } 1059 1060 static int ieee80211_set_ftm_responder_params( 1061 struct ieee80211_sub_if_data *sdata, 1062 const u8 *lci, size_t lci_len, 1063 const u8 *civicloc, size_t civicloc_len, 1064 struct ieee80211_bss_conf *link_conf) 1065 { 1066 struct ieee80211_ftm_responder_params *new, *old; 1067 u8 *pos; 1068 int len; 1069 1070 if (!lci_len && !civicloc_len) 1071 return 0; 1072 1073 old = link_conf->ftmr_params; 1074 len = lci_len + civicloc_len; 1075 1076 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1077 if (!new) 1078 return -ENOMEM; 1079 1080 pos = (u8 *)(new + 1); 1081 if (lci_len) { 1082 new->lci_len = lci_len; 1083 new->lci = pos; 1084 memcpy(pos, lci, lci_len); 1085 pos += lci_len; 1086 } 1087 1088 if (civicloc_len) { 1089 new->civicloc_len = civicloc_len; 1090 new->civicloc = pos; 1091 memcpy(pos, civicloc, civicloc_len); 1092 pos += civicloc_len; 1093 } 1094 1095 link_conf->ftmr_params = new; 1096 kfree(old); 1097 1098 return 0; 1099 } 1100 1101 static int 1102 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1103 struct cfg80211_mbssid_elems *src) 1104 { 1105 int i, offset = 0; 1106 1107 dst->cnt = src->cnt; 1108 for (i = 0; i < src->cnt; i++) { 1109 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1110 dst->elem[i].len = src->elem[i].len; 1111 dst->elem[i].data = pos + offset; 1112 offset += dst->elem[i].len; 1113 } 1114 1115 return offset; 1116 } 1117 1118 static int 1119 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1120 struct cfg80211_rnr_elems *src) 1121 { 1122 int i, offset = 0; 1123 1124 for (i = 0; i < src->cnt; i++) { 1125 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1126 dst->elem[i].len = src->elem[i].len; 1127 dst->elem[i].data = pos + offset; 1128 offset += dst->elem[i].len; 1129 } 1130 dst->cnt = src->cnt; 1131 1132 return offset; 1133 } 1134 1135 static int 1136 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1137 struct ieee80211_link_data *link, 1138 struct cfg80211_beacon_data *params, 1139 const struct ieee80211_csa_settings *csa, 1140 const struct ieee80211_color_change_settings *cca, 1141 u64 *changed) 1142 { 1143 struct cfg80211_mbssid_elems *mbssid = NULL; 1144 struct cfg80211_rnr_elems *rnr = NULL; 1145 struct beacon_data *new, *old; 1146 int new_head_len, new_tail_len; 1147 int size, err; 1148 u64 _changed = BSS_CHANGED_BEACON; 1149 struct ieee80211_bss_conf *link_conf = link->conf; 1150 1151 old = sdata_dereference(link->u.ap.beacon, sdata); 1152 1153 /* Need to have a beacon head if we don't have one yet */ 1154 if (!params->head && !old) 1155 return -EINVAL; 1156 1157 /* new or old head? */ 1158 if (params->head) 1159 new_head_len = params->head_len; 1160 else 1161 new_head_len = old->head_len; 1162 1163 /* new or old tail? */ 1164 if (params->tail || !old) 1165 /* params->tail_len will be zero for !params->tail */ 1166 new_tail_len = params->tail_len; 1167 else 1168 new_tail_len = old->tail_len; 1169 1170 size = sizeof(*new) + new_head_len + new_tail_len; 1171 1172 /* new or old multiple BSSID elements? */ 1173 if (params->mbssid_ies) { 1174 mbssid = params->mbssid_ies; 1175 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1176 if (params->rnr_ies) { 1177 rnr = params->rnr_ies; 1178 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1179 } 1180 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1181 mbssid->cnt); 1182 } else if (old && old->mbssid_ies) { 1183 mbssid = old->mbssid_ies; 1184 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1185 if (old && old->rnr_ies) { 1186 rnr = old->rnr_ies; 1187 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1188 } 1189 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1190 mbssid->cnt); 1191 } 1192 1193 new = kzalloc(size, GFP_KERNEL); 1194 if (!new) 1195 return -ENOMEM; 1196 1197 /* start filling the new info now */ 1198 1199 /* 1200 * pointers go into the block we allocated, 1201 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1202 */ 1203 new->head = ((u8 *) new) + sizeof(*new); 1204 new->tail = new->head + new_head_len; 1205 new->head_len = new_head_len; 1206 new->tail_len = new_tail_len; 1207 /* copy in optional mbssid_ies */ 1208 if (mbssid) { 1209 u8 *pos = new->tail + new->tail_len; 1210 1211 new->mbssid_ies = (void *)pos; 1212 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1213 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1214 mbssid); 1215 if (rnr) { 1216 new->rnr_ies = (void *)pos; 1217 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1218 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1219 } 1220 /* update bssid_indicator */ 1221 link_conf->bssid_indicator = 1222 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1223 } 1224 1225 if (csa) { 1226 new->cntdwn_current_counter = csa->count; 1227 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1228 csa->n_counter_offsets_beacon * 1229 sizeof(new->cntdwn_counter_offsets[0])); 1230 } else if (cca) { 1231 new->cntdwn_current_counter = cca->count; 1232 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1233 } 1234 1235 /* copy in head */ 1236 if (params->head) 1237 memcpy(new->head, params->head, new_head_len); 1238 else 1239 memcpy(new->head, old->head, new_head_len); 1240 1241 /* copy in optional tail */ 1242 if (params->tail) 1243 memcpy(new->tail, params->tail, new_tail_len); 1244 else 1245 if (old) 1246 memcpy(new->tail, old->tail, new_tail_len); 1247 1248 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1249 params->probe_resp_len, csa, cca, link); 1250 if (err < 0) { 1251 kfree(new); 1252 return err; 1253 } 1254 if (err == 0) 1255 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1256 1257 if (params->ftm_responder != -1) { 1258 link_conf->ftm_responder = params->ftm_responder; 1259 err = ieee80211_set_ftm_responder_params(sdata, 1260 params->lci, 1261 params->lci_len, 1262 params->civicloc, 1263 params->civicloc_len, 1264 link_conf); 1265 1266 if (err < 0) { 1267 kfree(new); 1268 return err; 1269 } 1270 1271 _changed |= BSS_CHANGED_FTM_RESPONDER; 1272 } 1273 1274 rcu_assign_pointer(link->u.ap.beacon, new); 1275 sdata->u.ap.active = true; 1276 1277 if (old) 1278 kfree_rcu(old, rcu_head); 1279 1280 *changed |= _changed; 1281 return 0; 1282 } 1283 1284 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1285 { 1286 struct ieee80211_link_data *link; 1287 u8 link_id, num = 0; 1288 1289 if (sdata->vif.type != NL80211_IFTYPE_AP && 1290 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1291 return num; 1292 1293 if (!sdata->vif.valid_links) 1294 return num; 1295 1296 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1297 link = sdata_dereference(sdata->link[link_id], sdata); 1298 if (!link) 1299 continue; 1300 1301 if (sdata_dereference(link->u.ap.beacon, sdata)) 1302 num++; 1303 } 1304 1305 return num; 1306 } 1307 1308 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1309 struct cfg80211_ap_settings *params) 1310 { 1311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1312 struct ieee80211_local *local = sdata->local; 1313 struct beacon_data *old; 1314 struct ieee80211_sub_if_data *vlan; 1315 u64 changed = BSS_CHANGED_BEACON_INT | 1316 BSS_CHANGED_BEACON_ENABLED | 1317 BSS_CHANGED_BEACON | 1318 BSS_CHANGED_P2P_PS | 1319 BSS_CHANGED_TXPOWER | 1320 BSS_CHANGED_TWT; 1321 int i, err; 1322 int prev_beacon_int; 1323 unsigned int link_id = params->beacon.link_id; 1324 struct ieee80211_link_data *link; 1325 struct ieee80211_bss_conf *link_conf; 1326 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1327 1328 lockdep_assert_wiphy(local->hw.wiphy); 1329 1330 link = sdata_dereference(sdata->link[link_id], sdata); 1331 if (!link) 1332 return -ENOLINK; 1333 1334 link_conf = link->conf; 1335 1336 old = sdata_dereference(link->u.ap.beacon, sdata); 1337 if (old) 1338 return -EALREADY; 1339 1340 link->smps_mode = IEEE80211_SMPS_OFF; 1341 1342 link->needed_rx_chains = sdata->local->rx_chains; 1343 1344 prev_beacon_int = link_conf->beacon_int; 1345 link_conf->beacon_int = params->beacon_interval; 1346 1347 if (params->ht_cap) 1348 link_conf->ht_ldpc = 1349 params->ht_cap->cap_info & 1350 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1351 1352 if (params->vht_cap) { 1353 link_conf->vht_ldpc = 1354 params->vht_cap->vht_cap_info & 1355 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1356 link_conf->vht_su_beamformer = 1357 params->vht_cap->vht_cap_info & 1358 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1359 link_conf->vht_su_beamformee = 1360 params->vht_cap->vht_cap_info & 1361 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1362 link_conf->vht_mu_beamformer = 1363 params->vht_cap->vht_cap_info & 1364 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1365 link_conf->vht_mu_beamformee = 1366 params->vht_cap->vht_cap_info & 1367 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1368 } 1369 1370 if (params->he_cap && params->he_oper) { 1371 link_conf->he_support = true; 1372 link_conf->htc_trig_based_pkt_ext = 1373 le32_get_bits(params->he_oper->he_oper_params, 1374 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1375 link_conf->frame_time_rts_th = 1376 le32_get_bits(params->he_oper->he_oper_params, 1377 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1378 changed |= BSS_CHANGED_HE_OBSS_PD; 1379 1380 if (params->beacon.he_bss_color.enabled) 1381 changed |= BSS_CHANGED_HE_BSS_COLOR; 1382 } 1383 1384 if (params->he_cap) { 1385 link_conf->he_ldpc = 1386 params->he_cap->phy_cap_info[1] & 1387 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1388 link_conf->he_su_beamformer = 1389 params->he_cap->phy_cap_info[3] & 1390 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1391 link_conf->he_su_beamformee = 1392 params->he_cap->phy_cap_info[4] & 1393 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1394 link_conf->he_mu_beamformer = 1395 params->he_cap->phy_cap_info[4] & 1396 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1397 link_conf->he_full_ul_mumimo = 1398 params->he_cap->phy_cap_info[2] & 1399 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1400 } 1401 1402 if (params->eht_cap) { 1403 if (!link_conf->he_support) 1404 return -EOPNOTSUPP; 1405 1406 link_conf->eht_support = true; 1407 1408 link_conf->eht_su_beamformer = 1409 params->eht_cap->fixed.phy_cap_info[0] & 1410 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1411 link_conf->eht_su_beamformee = 1412 params->eht_cap->fixed.phy_cap_info[0] & 1413 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1414 link_conf->eht_mu_beamformer = 1415 params->eht_cap->fixed.phy_cap_info[7] & 1416 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1417 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1418 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1419 link_conf->eht_80mhz_full_bw_ul_mumimo = 1420 params->eht_cap->fixed.phy_cap_info[7] & 1421 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1422 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1423 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1424 } else { 1425 link_conf->eht_su_beamformer = false; 1426 link_conf->eht_su_beamformee = false; 1427 link_conf->eht_mu_beamformer = false; 1428 } 1429 1430 if (sdata->vif.type == NL80211_IFTYPE_AP && 1431 params->mbssid_config.tx_wdev) { 1432 err = ieee80211_set_ap_mbssid_options(sdata, 1433 ¶ms->mbssid_config, 1434 link_conf); 1435 if (err) 1436 return err; 1437 } 1438 1439 err = ieee80211_link_use_channel(link, &chanreq, 1440 IEEE80211_CHANCTX_SHARED); 1441 if (!err) 1442 ieee80211_link_copy_chanctx_to_vlans(link, false); 1443 if (err) { 1444 link_conf->beacon_int = prev_beacon_int; 1445 return err; 1446 } 1447 1448 /* 1449 * Apply control port protocol, this allows us to 1450 * not encrypt dynamic WEP control frames. 1451 */ 1452 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1453 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1454 sdata->control_port_over_nl80211 = 1455 params->crypto.control_port_over_nl80211; 1456 sdata->control_port_no_preauth = 1457 params->crypto.control_port_no_preauth; 1458 1459 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1460 vlan->control_port_protocol = 1461 params->crypto.control_port_ethertype; 1462 vlan->control_port_no_encrypt = 1463 params->crypto.control_port_no_encrypt; 1464 vlan->control_port_over_nl80211 = 1465 params->crypto.control_port_over_nl80211; 1466 vlan->control_port_no_preauth = 1467 params->crypto.control_port_no_preauth; 1468 } 1469 1470 link_conf->dtim_period = params->dtim_period; 1471 link_conf->enable_beacon = true; 1472 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1473 link_conf->twt_responder = params->twt_responder; 1474 link_conf->he_obss_pd = params->he_obss_pd; 1475 link_conf->he_bss_color = params->beacon.he_bss_color; 1476 sdata->vif.cfg.s1g = params->chandef.chan->band == 1477 NL80211_BAND_S1GHZ; 1478 1479 sdata->vif.cfg.ssid_len = params->ssid_len; 1480 if (params->ssid_len) 1481 memcpy(sdata->vif.cfg.ssid, params->ssid, 1482 params->ssid_len); 1483 link_conf->hidden_ssid = 1484 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1485 1486 memset(&link_conf->p2p_noa_attr, 0, 1487 sizeof(link_conf->p2p_noa_attr)); 1488 link_conf->p2p_noa_attr.oppps_ctwindow = 1489 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1490 if (params->p2p_opp_ps) 1491 link_conf->p2p_noa_attr.oppps_ctwindow |= 1492 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1493 1494 sdata->beacon_rate_set = false; 1495 if (wiphy_ext_feature_isset(local->hw.wiphy, 1496 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1497 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1498 sdata->beacon_rateidx_mask[i] = 1499 params->beacon_rate.control[i].legacy; 1500 if (sdata->beacon_rateidx_mask[i]) 1501 sdata->beacon_rate_set = true; 1502 } 1503 } 1504 1505 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1506 link_conf->beacon_tx_rate = params->beacon_rate; 1507 1508 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1509 &changed); 1510 if (err < 0) 1511 goto error; 1512 1513 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1514 link, link_conf, &changed); 1515 if (err < 0) 1516 goto error; 1517 1518 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1519 ¶ms->unsol_bcast_probe_resp, 1520 link, link_conf, &changed); 1521 if (err < 0) 1522 goto error; 1523 1524 err = drv_start_ap(sdata->local, sdata, link_conf); 1525 if (err) { 1526 old = sdata_dereference(link->u.ap.beacon, sdata); 1527 1528 if (old) 1529 kfree_rcu(old, rcu_head); 1530 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1531 1532 if (ieee80211_num_beaconing_links(sdata) == 0) 1533 sdata->u.ap.active = false; 1534 1535 goto error; 1536 } 1537 1538 ieee80211_recalc_dtim(local, sdata); 1539 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1540 ieee80211_link_info_change_notify(sdata, link, changed); 1541 1542 if (ieee80211_num_beaconing_links(sdata) <= 1) 1543 netif_carrier_on(dev); 1544 1545 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1546 netif_carrier_on(vlan->dev); 1547 1548 return 0; 1549 1550 error: 1551 ieee80211_link_release_channel(link); 1552 1553 return err; 1554 } 1555 1556 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1557 struct cfg80211_ap_update *params) 1558 1559 { 1560 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1561 struct ieee80211_link_data *link; 1562 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1563 struct beacon_data *old; 1564 int err; 1565 struct ieee80211_bss_conf *link_conf; 1566 u64 changed = 0; 1567 1568 lockdep_assert_wiphy(wiphy); 1569 1570 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1571 if (!link) 1572 return -ENOLINK; 1573 1574 link_conf = link->conf; 1575 1576 /* don't allow changing the beacon while a countdown is in place - offset 1577 * of channel switch counter may change 1578 */ 1579 if (link_conf->csa_active || link_conf->color_change_active) 1580 return -EBUSY; 1581 1582 old = sdata_dereference(link->u.ap.beacon, sdata); 1583 if (!old) 1584 return -ENOENT; 1585 1586 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1587 &changed); 1588 if (err < 0) 1589 return err; 1590 1591 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1592 link, link_conf, &changed); 1593 if (err < 0) 1594 return err; 1595 1596 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1597 ¶ms->unsol_bcast_probe_resp, 1598 link, link_conf, &changed); 1599 if (err < 0) 1600 return err; 1601 1602 if (beacon->he_bss_color_valid && 1603 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1604 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1605 changed |= BSS_CHANGED_HE_BSS_COLOR; 1606 } 1607 1608 ieee80211_link_info_change_notify(sdata, link, changed); 1609 return 0; 1610 } 1611 1612 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1613 { 1614 if (!link->u.ap.next_beacon) 1615 return; 1616 1617 kfree(link->u.ap.next_beacon->mbssid_ies); 1618 kfree(link->u.ap.next_beacon->rnr_ies); 1619 kfree(link->u.ap.next_beacon); 1620 link->u.ap.next_beacon = NULL; 1621 } 1622 1623 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1624 unsigned int link_id) 1625 { 1626 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1627 struct ieee80211_sub_if_data *vlan; 1628 struct ieee80211_local *local = sdata->local; 1629 struct beacon_data *old_beacon; 1630 struct probe_resp *old_probe_resp; 1631 struct fils_discovery_data *old_fils_discovery; 1632 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1633 struct cfg80211_chan_def chandef; 1634 struct ieee80211_link_data *link = 1635 sdata_dereference(sdata->link[link_id], sdata); 1636 struct ieee80211_bss_conf *link_conf = link->conf; 1637 LIST_HEAD(keys); 1638 1639 lockdep_assert_wiphy(local->hw.wiphy); 1640 1641 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1642 if (!old_beacon) 1643 return -ENOENT; 1644 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1645 sdata); 1646 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1647 sdata); 1648 old_unsol_bcast_probe_resp = 1649 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1650 sdata); 1651 1652 /* abort any running channel switch or color change */ 1653 link_conf->csa_active = false; 1654 link_conf->color_change_active = false; 1655 ieee80211_vif_unblock_queues_csa(sdata); 1656 1657 ieee80211_free_next_beacon(link); 1658 1659 /* turn off carrier for this interface and dependent VLANs */ 1660 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1661 netif_carrier_off(vlan->dev); 1662 1663 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1664 netif_carrier_off(dev); 1665 sdata->u.ap.active = false; 1666 } 1667 1668 /* remove beacon and probe response */ 1669 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1670 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1671 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1672 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1673 kfree_rcu(old_beacon, rcu_head); 1674 if (old_probe_resp) 1675 kfree_rcu(old_probe_resp, rcu_head); 1676 if (old_fils_discovery) 1677 kfree_rcu(old_fils_discovery, rcu_head); 1678 if (old_unsol_bcast_probe_resp) 1679 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1680 1681 kfree(link_conf->ftmr_params); 1682 link_conf->ftmr_params = NULL; 1683 1684 link_conf->bssid_index = 0; 1685 link_conf->nontransmitted = false; 1686 link_conf->ema_ap = false; 1687 link_conf->bssid_indicator = 0; 1688 1689 __sta_info_flush(sdata, true, link_id, NULL); 1690 1691 ieee80211_remove_link_keys(link, &keys); 1692 if (!list_empty(&keys)) { 1693 synchronize_net(); 1694 ieee80211_free_key_list(local, &keys); 1695 } 1696 1697 ieee80211_stop_mbssid(sdata); 1698 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL); 1699 1700 link_conf->enable_beacon = false; 1701 sdata->beacon_rate_set = false; 1702 sdata->vif.cfg.ssid_len = 0; 1703 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1704 ieee80211_link_info_change_notify(sdata, link, 1705 BSS_CHANGED_BEACON_ENABLED); 1706 1707 if (sdata->wdev.links[link_id].cac_started) { 1708 chandef = link_conf->chanreq.oper; 1709 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1710 cfg80211_cac_event(sdata->dev, &chandef, 1711 NL80211_RADAR_CAC_ABORTED, 1712 GFP_KERNEL, link_id); 1713 } 1714 1715 drv_stop_ap(sdata->local, sdata, link_conf); 1716 1717 /* free all potentially still buffered bcast frames */ 1718 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1719 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1720 1721 ieee80211_link_copy_chanctx_to_vlans(link, true); 1722 ieee80211_link_release_channel(link); 1723 1724 return 0; 1725 } 1726 1727 static int sta_apply_auth_flags(struct ieee80211_local *local, 1728 struct sta_info *sta, 1729 u32 mask, u32 set) 1730 { 1731 int ret; 1732 1733 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1734 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1735 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1736 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1737 if (ret) 1738 return ret; 1739 } 1740 1741 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1742 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1743 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1744 /* 1745 * When peer becomes associated, init rate control as 1746 * well. Some drivers require rate control initialized 1747 * before drv_sta_state() is called. 1748 */ 1749 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1750 rate_control_rate_init_all_links(sta); 1751 1752 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1753 if (ret) 1754 return ret; 1755 } 1756 1757 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1758 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1759 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1760 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1761 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1762 else 1763 ret = 0; 1764 if (ret) 1765 return ret; 1766 } 1767 1768 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1769 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1770 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1771 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1772 if (ret) 1773 return ret; 1774 } 1775 1776 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1777 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1778 test_sta_flag(sta, WLAN_STA_AUTH)) { 1779 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1780 if (ret) 1781 return ret; 1782 } 1783 1784 return 0; 1785 } 1786 1787 static void sta_apply_mesh_params(struct ieee80211_local *local, 1788 struct sta_info *sta, 1789 struct station_parameters *params) 1790 { 1791 #ifdef CONFIG_MAC80211_MESH 1792 struct ieee80211_sub_if_data *sdata = sta->sdata; 1793 u64 changed = 0; 1794 1795 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1796 switch (params->plink_state) { 1797 case NL80211_PLINK_ESTAB: 1798 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1799 changed = mesh_plink_inc_estab_count(sdata); 1800 sta->mesh->plink_state = params->plink_state; 1801 sta->mesh->aid = params->peer_aid; 1802 1803 ieee80211_mps_sta_status_update(sta); 1804 changed |= ieee80211_mps_set_sta_local_pm(sta, 1805 sdata->u.mesh.mshcfg.power_mode); 1806 1807 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1808 /* init at low value */ 1809 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1810 1811 break; 1812 case NL80211_PLINK_LISTEN: 1813 case NL80211_PLINK_BLOCKED: 1814 case NL80211_PLINK_OPN_SNT: 1815 case NL80211_PLINK_OPN_RCVD: 1816 case NL80211_PLINK_CNF_RCVD: 1817 case NL80211_PLINK_HOLDING: 1818 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1819 changed = mesh_plink_dec_estab_count(sdata); 1820 sta->mesh->plink_state = params->plink_state; 1821 1822 ieee80211_mps_sta_status_update(sta); 1823 changed |= ieee80211_mps_set_sta_local_pm(sta, 1824 NL80211_MESH_POWER_UNKNOWN); 1825 break; 1826 default: 1827 /* nothing */ 1828 break; 1829 } 1830 } 1831 1832 switch (params->plink_action) { 1833 case NL80211_PLINK_ACTION_NO_ACTION: 1834 /* nothing */ 1835 break; 1836 case NL80211_PLINK_ACTION_OPEN: 1837 changed |= mesh_plink_open(sta); 1838 break; 1839 case NL80211_PLINK_ACTION_BLOCK: 1840 changed |= mesh_plink_block(sta); 1841 break; 1842 } 1843 1844 if (params->local_pm) 1845 changed |= ieee80211_mps_set_sta_local_pm(sta, 1846 params->local_pm); 1847 1848 ieee80211_mbss_info_change_notify(sdata, changed); 1849 #endif 1850 } 1851 1852 enum sta_link_apply_mode { 1853 STA_LINK_MODE_NEW, 1854 STA_LINK_MODE_STA_MODIFY, 1855 STA_LINK_MODE_LINK_MODIFY, 1856 }; 1857 1858 static int sta_link_apply_parameters(struct ieee80211_local *local, 1859 struct sta_info *sta, 1860 enum sta_link_apply_mode mode, 1861 struct link_station_parameters *params) 1862 { 1863 struct ieee80211_supported_band *sband; 1864 struct ieee80211_sub_if_data *sdata = sta->sdata; 1865 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1866 struct ieee80211_link_data *link = 1867 sdata_dereference(sdata->link[link_id], sdata); 1868 struct link_sta_info *link_sta = 1869 rcu_dereference_protected(sta->link[link_id], 1870 lockdep_is_held(&local->hw.wiphy->mtx)); 1871 bool changes = params->link_mac || 1872 params->txpwr_set || 1873 params->supported_rates_len || 1874 params->ht_capa || 1875 params->vht_capa || 1876 params->he_capa || 1877 params->eht_capa || 1878 params->opmode_notif_used; 1879 1880 switch (mode) { 1881 case STA_LINK_MODE_NEW: 1882 if (!params->link_mac) 1883 return -EINVAL; 1884 break; 1885 case STA_LINK_MODE_LINK_MODIFY: 1886 break; 1887 case STA_LINK_MODE_STA_MODIFY: 1888 if (params->link_id >= 0) 1889 break; 1890 if (!changes) 1891 return 0; 1892 break; 1893 } 1894 1895 if (!link || !link_sta) 1896 return -EINVAL; 1897 1898 sband = ieee80211_get_link_sband(link); 1899 if (!sband) 1900 return -EINVAL; 1901 1902 if (params->link_mac) { 1903 if (mode == STA_LINK_MODE_NEW) { 1904 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1905 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1906 } else if (!ether_addr_equal(link_sta->addr, 1907 params->link_mac)) { 1908 return -EINVAL; 1909 } 1910 } 1911 1912 if (params->txpwr_set) { 1913 int ret; 1914 1915 link_sta->pub->txpwr.type = params->txpwr.type; 1916 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1917 link_sta->pub->txpwr.power = params->txpwr.power; 1918 ret = drv_sta_set_txpwr(local, sdata, sta); 1919 if (ret) 1920 return ret; 1921 } 1922 1923 if (params->supported_rates && 1924 params->supported_rates_len && 1925 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1926 sband, params->supported_rates, 1927 params->supported_rates_len, 1928 &link_sta->pub->supp_rates[sband->band])) 1929 return -EINVAL; 1930 1931 if (params->ht_capa) 1932 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1933 params->ht_capa, link_sta); 1934 1935 /* VHT can override some HT caps such as the A-MSDU max length */ 1936 if (params->vht_capa) 1937 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1938 params->vht_capa, NULL, 1939 link_sta); 1940 1941 if (params->he_capa) 1942 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1943 (void *)params->he_capa, 1944 params->he_capa_len, 1945 (void *)params->he_6ghz_capa, 1946 link_sta); 1947 1948 if (params->he_capa && params->eht_capa) 1949 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1950 (u8 *)params->he_capa, 1951 params->he_capa_len, 1952 params->eht_capa, 1953 params->eht_capa_len, 1954 link_sta); 1955 1956 ieee80211_sta_init_nss(link_sta); 1957 1958 if (params->opmode_notif_used) { 1959 /* returned value is only needed for rc update, but the 1960 * rc isn't initialized here yet, so ignore it 1961 */ 1962 __ieee80211_vht_handle_opmode(sdata, link_sta, 1963 params->opmode_notif, 1964 sband->band); 1965 } 1966 1967 return 0; 1968 } 1969 1970 static int sta_apply_parameters(struct ieee80211_local *local, 1971 struct sta_info *sta, 1972 struct station_parameters *params) 1973 { 1974 struct ieee80211_sub_if_data *sdata = sta->sdata; 1975 u32 mask, set; 1976 int ret = 0; 1977 1978 mask = params->sta_flags_mask; 1979 set = params->sta_flags_set; 1980 1981 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1982 /* 1983 * In mesh mode, ASSOCIATED isn't part of the nl80211 1984 * API but must follow AUTHENTICATED for driver state. 1985 */ 1986 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1987 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1988 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1989 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1990 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1991 /* 1992 * TDLS -- everything follows authorized, but 1993 * only becoming authorized is possible, not 1994 * going back 1995 */ 1996 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1997 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1998 BIT(NL80211_STA_FLAG_ASSOCIATED); 1999 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2000 BIT(NL80211_STA_FLAG_ASSOCIATED); 2001 } 2002 } 2003 2004 if (mask & BIT(NL80211_STA_FLAG_WME) && 2005 local->hw.queues >= IEEE80211_NUM_ACS) 2006 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 2007 2008 /* auth flags will be set later for TDLS, 2009 * and for unassociated stations that move to associated */ 2010 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2011 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 2012 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2013 ret = sta_apply_auth_flags(local, sta, mask, set); 2014 if (ret) 2015 return ret; 2016 } 2017 2018 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2019 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2020 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2021 else 2022 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2023 } 2024 2025 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2026 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2027 if (set & BIT(NL80211_STA_FLAG_MFP)) 2028 set_sta_flag(sta, WLAN_STA_MFP); 2029 else 2030 clear_sta_flag(sta, WLAN_STA_MFP); 2031 } 2032 2033 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2034 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2035 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2036 else 2037 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2038 } 2039 2040 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2041 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2042 2043 /* mark TDLS channel switch support, if the AP allows it */ 2044 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2045 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2046 params->ext_capab_len >= 4 && 2047 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2048 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2049 2050 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2051 !sdata->u.mgd.tdls_wider_bw_prohibited && 2052 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2053 params->ext_capab_len >= 8 && 2054 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2055 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2056 2057 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2058 sta->sta.uapsd_queues = params->uapsd_queues; 2059 sta->sta.max_sp = params->max_sp; 2060 } 2061 2062 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2063 params->ext_capab_len); 2064 2065 /* 2066 * cfg80211 validates this (1-2007) and allows setting the AID 2067 * only when creating a new station entry 2068 */ 2069 if (params->aid) 2070 sta->sta.aid = params->aid; 2071 2072 /* 2073 * Some of the following updates would be racy if called on an 2074 * existing station, via ieee80211_change_station(). However, 2075 * all such changes are rejected by cfg80211 except for updates 2076 * changing the supported rates on an existing but not yet used 2077 * TDLS peer. 2078 */ 2079 2080 if (params->listen_interval >= 0) 2081 sta->listen_interval = params->listen_interval; 2082 2083 if (params->eml_cap_present) 2084 sta->sta.eml_cap = params->eml_cap; 2085 2086 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2087 ¶ms->link_sta_params); 2088 if (ret) 2089 return ret; 2090 2091 if (params->support_p2p_ps >= 0) 2092 sta->sta.support_p2p_ps = params->support_p2p_ps; 2093 2094 if (ieee80211_vif_is_mesh(&sdata->vif)) 2095 sta_apply_mesh_params(local, sta, params); 2096 2097 if (params->airtime_weight) 2098 sta->airtime_weight = params->airtime_weight; 2099 2100 /* set the STA state after all sta info from usermode has been set */ 2101 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2102 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2103 ret = sta_apply_auth_flags(local, sta, mask, set); 2104 if (ret) 2105 return ret; 2106 } 2107 2108 /* Mark the STA as MLO if MLD MAC address is available */ 2109 if (params->link_sta_params.mld_mac) 2110 sta->sta.mlo = true; 2111 2112 return 0; 2113 } 2114 2115 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2116 const u8 *mac, 2117 struct station_parameters *params) 2118 { 2119 struct ieee80211_local *local = wiphy_priv(wiphy); 2120 struct sta_info *sta; 2121 struct ieee80211_sub_if_data *sdata; 2122 int err; 2123 2124 lockdep_assert_wiphy(local->hw.wiphy); 2125 2126 if (params->vlan) { 2127 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2128 2129 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2130 sdata->vif.type != NL80211_IFTYPE_AP) 2131 return -EINVAL; 2132 } else 2133 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2134 2135 if (ether_addr_equal(mac, sdata->vif.addr)) 2136 return -EINVAL; 2137 2138 if (!is_valid_ether_addr(mac)) 2139 return -EINVAL; 2140 2141 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2142 sdata->vif.type == NL80211_IFTYPE_STATION && 2143 !sdata->u.mgd.associated) 2144 return -EINVAL; 2145 2146 /* 2147 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2148 * but we need to have a link_mac in that case as well, so use the 2149 * STA's MAC address in that case. 2150 */ 2151 if (params->link_sta_params.link_id >= 0) 2152 sta = sta_info_alloc_with_link(sdata, mac, 2153 params->link_sta_params.link_id, 2154 params->link_sta_params.link_mac ?: mac, 2155 GFP_KERNEL); 2156 else 2157 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2158 2159 if (!sta) 2160 return -ENOMEM; 2161 2162 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2163 sta->sta.tdls = true; 2164 2165 /* Though the mutex is not needed here (since the station is not 2166 * visible yet), sta_apply_parameters (and inner functions) require 2167 * the mutex due to other paths. 2168 */ 2169 err = sta_apply_parameters(local, sta, params); 2170 if (err) { 2171 sta_info_free(local, sta); 2172 return err; 2173 } 2174 2175 /* 2176 * for TDLS and for unassociated station, rate control should be 2177 * initialized only when rates are known and station is marked 2178 * authorized/associated 2179 */ 2180 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2181 test_sta_flag(sta, WLAN_STA_ASSOC)) 2182 rate_control_rate_init_all_links(sta); 2183 2184 return sta_info_insert(sta); 2185 } 2186 2187 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2188 struct station_del_parameters *params) 2189 { 2190 struct ieee80211_sub_if_data *sdata; 2191 2192 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2193 2194 if (params->mac) 2195 return sta_info_destroy_addr_bss(sdata, params->mac); 2196 2197 sta_info_flush(sdata, params->link_id); 2198 return 0; 2199 } 2200 2201 static int ieee80211_change_station(struct wiphy *wiphy, 2202 struct net_device *dev, const u8 *mac, 2203 struct station_parameters *params) 2204 { 2205 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2206 struct ieee80211_local *local = wiphy_priv(wiphy); 2207 struct sta_info *sta; 2208 struct ieee80211_sub_if_data *vlansdata; 2209 enum cfg80211_station_type statype; 2210 int err; 2211 2212 lockdep_assert_wiphy(local->hw.wiphy); 2213 2214 sta = sta_info_get_bss(sdata, mac); 2215 if (!sta) 2216 return -ENOENT; 2217 2218 switch (sdata->vif.type) { 2219 case NL80211_IFTYPE_MESH_POINT: 2220 if (sdata->u.mesh.user_mpm) 2221 statype = CFG80211_STA_MESH_PEER_USER; 2222 else 2223 statype = CFG80211_STA_MESH_PEER_KERNEL; 2224 break; 2225 case NL80211_IFTYPE_ADHOC: 2226 statype = CFG80211_STA_IBSS; 2227 break; 2228 case NL80211_IFTYPE_STATION: 2229 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2230 statype = CFG80211_STA_AP_STA; 2231 break; 2232 } 2233 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2234 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2235 else 2236 statype = CFG80211_STA_TDLS_PEER_SETUP; 2237 break; 2238 case NL80211_IFTYPE_AP: 2239 case NL80211_IFTYPE_AP_VLAN: 2240 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2241 statype = CFG80211_STA_AP_CLIENT; 2242 else 2243 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2244 break; 2245 default: 2246 return -EOPNOTSUPP; 2247 } 2248 2249 err = cfg80211_check_station_change(wiphy, params, statype); 2250 if (err) 2251 return err; 2252 2253 if (params->vlan && params->vlan != sta->sdata->dev) { 2254 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2255 2256 if (params->vlan->ieee80211_ptr->use_4addr) { 2257 if (vlansdata->u.vlan.sta) 2258 return -EBUSY; 2259 2260 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2261 __ieee80211_check_fast_rx_iface(vlansdata); 2262 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2263 } 2264 2265 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2266 sta->sdata->u.vlan.sta) 2267 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2268 2269 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2270 ieee80211_vif_dec_num_mcast(sta->sdata); 2271 2272 sta->sdata = vlansdata; 2273 ieee80211_check_fast_rx(sta); 2274 ieee80211_check_fast_xmit(sta); 2275 2276 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2277 ieee80211_vif_inc_num_mcast(sta->sdata); 2278 cfg80211_send_layer2_update(sta->sdata->dev, 2279 sta->sta.addr); 2280 } 2281 } 2282 2283 err = sta_apply_parameters(local, sta, params); 2284 if (err) 2285 return err; 2286 2287 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2288 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2289 ieee80211_recalc_ps(local); 2290 ieee80211_recalc_ps_vif(sdata); 2291 } 2292 2293 return 0; 2294 } 2295 2296 #ifdef CONFIG_MAC80211_MESH 2297 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2298 const u8 *dst, const u8 *next_hop) 2299 { 2300 struct ieee80211_sub_if_data *sdata; 2301 struct mesh_path *mpath; 2302 struct sta_info *sta; 2303 2304 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2305 2306 rcu_read_lock(); 2307 sta = sta_info_get(sdata, next_hop); 2308 if (!sta) { 2309 rcu_read_unlock(); 2310 return -ENOENT; 2311 } 2312 2313 mpath = mesh_path_add(sdata, dst); 2314 if (IS_ERR(mpath)) { 2315 rcu_read_unlock(); 2316 return PTR_ERR(mpath); 2317 } 2318 2319 mesh_path_fix_nexthop(mpath, sta); 2320 2321 rcu_read_unlock(); 2322 return 0; 2323 } 2324 2325 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2326 const u8 *dst) 2327 { 2328 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2329 2330 if (dst) 2331 return mesh_path_del(sdata, dst); 2332 2333 mesh_path_flush_by_iface(sdata); 2334 return 0; 2335 } 2336 2337 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2338 const u8 *dst, const u8 *next_hop) 2339 { 2340 struct ieee80211_sub_if_data *sdata; 2341 struct mesh_path *mpath; 2342 struct sta_info *sta; 2343 2344 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2345 2346 rcu_read_lock(); 2347 2348 sta = sta_info_get(sdata, next_hop); 2349 if (!sta) { 2350 rcu_read_unlock(); 2351 return -ENOENT; 2352 } 2353 2354 mpath = mesh_path_lookup(sdata, dst); 2355 if (!mpath) { 2356 rcu_read_unlock(); 2357 return -ENOENT; 2358 } 2359 2360 mesh_path_fix_nexthop(mpath, sta); 2361 2362 rcu_read_unlock(); 2363 return 0; 2364 } 2365 2366 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2367 struct mpath_info *pinfo) 2368 { 2369 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2370 2371 if (next_hop_sta) 2372 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2373 else 2374 eth_zero_addr(next_hop); 2375 2376 memset(pinfo, 0, sizeof(*pinfo)); 2377 2378 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2379 2380 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2381 MPATH_INFO_SN | 2382 MPATH_INFO_METRIC | 2383 MPATH_INFO_EXPTIME | 2384 MPATH_INFO_DISCOVERY_TIMEOUT | 2385 MPATH_INFO_DISCOVERY_RETRIES | 2386 MPATH_INFO_FLAGS | 2387 MPATH_INFO_HOP_COUNT | 2388 MPATH_INFO_PATH_CHANGE; 2389 2390 pinfo->frame_qlen = mpath->frame_queue.qlen; 2391 pinfo->sn = mpath->sn; 2392 pinfo->metric = mpath->metric; 2393 if (time_before(jiffies, mpath->exp_time)) 2394 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2395 pinfo->discovery_timeout = 2396 jiffies_to_msecs(mpath->discovery_timeout); 2397 pinfo->discovery_retries = mpath->discovery_retries; 2398 if (mpath->flags & MESH_PATH_ACTIVE) 2399 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2400 if (mpath->flags & MESH_PATH_RESOLVING) 2401 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2402 if (mpath->flags & MESH_PATH_SN_VALID) 2403 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2404 if (mpath->flags & MESH_PATH_FIXED) 2405 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2406 if (mpath->flags & MESH_PATH_RESOLVED) 2407 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2408 pinfo->hop_count = mpath->hop_count; 2409 pinfo->path_change_count = mpath->path_change_count; 2410 } 2411 2412 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2413 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2414 2415 { 2416 struct ieee80211_sub_if_data *sdata; 2417 struct mesh_path *mpath; 2418 2419 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2420 2421 rcu_read_lock(); 2422 mpath = mesh_path_lookup(sdata, dst); 2423 if (!mpath) { 2424 rcu_read_unlock(); 2425 return -ENOENT; 2426 } 2427 memcpy(dst, mpath->dst, ETH_ALEN); 2428 mpath_set_pinfo(mpath, next_hop, pinfo); 2429 rcu_read_unlock(); 2430 return 0; 2431 } 2432 2433 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2434 int idx, u8 *dst, u8 *next_hop, 2435 struct mpath_info *pinfo) 2436 { 2437 struct ieee80211_sub_if_data *sdata; 2438 struct mesh_path *mpath; 2439 2440 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2441 2442 rcu_read_lock(); 2443 mpath = mesh_path_lookup_by_idx(sdata, idx); 2444 if (!mpath) { 2445 rcu_read_unlock(); 2446 return -ENOENT; 2447 } 2448 memcpy(dst, mpath->dst, ETH_ALEN); 2449 mpath_set_pinfo(mpath, next_hop, pinfo); 2450 rcu_read_unlock(); 2451 return 0; 2452 } 2453 2454 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2455 struct mpath_info *pinfo) 2456 { 2457 memset(pinfo, 0, sizeof(*pinfo)); 2458 memcpy(mpp, mpath->mpp, ETH_ALEN); 2459 2460 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2461 } 2462 2463 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2464 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2465 2466 { 2467 struct ieee80211_sub_if_data *sdata; 2468 struct mesh_path *mpath; 2469 2470 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2471 2472 rcu_read_lock(); 2473 mpath = mpp_path_lookup(sdata, dst); 2474 if (!mpath) { 2475 rcu_read_unlock(); 2476 return -ENOENT; 2477 } 2478 memcpy(dst, mpath->dst, ETH_ALEN); 2479 mpp_set_pinfo(mpath, mpp, pinfo); 2480 rcu_read_unlock(); 2481 return 0; 2482 } 2483 2484 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2485 int idx, u8 *dst, u8 *mpp, 2486 struct mpath_info *pinfo) 2487 { 2488 struct ieee80211_sub_if_data *sdata; 2489 struct mesh_path *mpath; 2490 2491 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2492 2493 rcu_read_lock(); 2494 mpath = mpp_path_lookup_by_idx(sdata, idx); 2495 if (!mpath) { 2496 rcu_read_unlock(); 2497 return -ENOENT; 2498 } 2499 memcpy(dst, mpath->dst, ETH_ALEN); 2500 mpp_set_pinfo(mpath, mpp, pinfo); 2501 rcu_read_unlock(); 2502 return 0; 2503 } 2504 2505 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2506 struct net_device *dev, 2507 struct mesh_config *conf) 2508 { 2509 struct ieee80211_sub_if_data *sdata; 2510 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2511 2512 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2513 return 0; 2514 } 2515 2516 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2517 { 2518 return (mask >> (parm-1)) & 0x1; 2519 } 2520 2521 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2522 const struct mesh_setup *setup) 2523 { 2524 u8 *new_ie; 2525 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2526 struct ieee80211_sub_if_data, u.mesh); 2527 int i; 2528 2529 /* allocate information elements */ 2530 new_ie = NULL; 2531 2532 if (setup->ie_len) { 2533 new_ie = kmemdup(setup->ie, setup->ie_len, 2534 GFP_KERNEL); 2535 if (!new_ie) 2536 return -ENOMEM; 2537 } 2538 ifmsh->ie_len = setup->ie_len; 2539 ifmsh->ie = new_ie; 2540 2541 /* now copy the rest of the setup parameters */ 2542 ifmsh->mesh_id_len = setup->mesh_id_len; 2543 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2544 ifmsh->mesh_sp_id = setup->sync_method; 2545 ifmsh->mesh_pp_id = setup->path_sel_proto; 2546 ifmsh->mesh_pm_id = setup->path_metric; 2547 ifmsh->user_mpm = setup->user_mpm; 2548 ifmsh->mesh_auth_id = setup->auth_id; 2549 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2550 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2551 if (setup->is_authenticated) 2552 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2553 if (setup->is_secure) 2554 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2555 2556 /* mcast rate setting in Mesh Node */ 2557 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2558 sizeof(setup->mcast_rate)); 2559 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2560 2561 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2562 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2563 2564 sdata->beacon_rate_set = false; 2565 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2566 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2567 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2568 sdata->beacon_rateidx_mask[i] = 2569 setup->beacon_rate.control[i].legacy; 2570 if (sdata->beacon_rateidx_mask[i]) 2571 sdata->beacon_rate_set = true; 2572 } 2573 } 2574 2575 return 0; 2576 } 2577 2578 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2579 struct net_device *dev, u32 mask, 2580 const struct mesh_config *nconf) 2581 { 2582 struct mesh_config *conf; 2583 struct ieee80211_sub_if_data *sdata; 2584 struct ieee80211_if_mesh *ifmsh; 2585 2586 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2587 ifmsh = &sdata->u.mesh; 2588 2589 /* Set the config options which we are interested in setting */ 2590 conf = &(sdata->u.mesh.mshcfg); 2591 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2592 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2593 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2594 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2595 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2596 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2597 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2598 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2599 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2600 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2601 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2602 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2603 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2604 conf->element_ttl = nconf->element_ttl; 2605 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2606 if (ifmsh->user_mpm) 2607 return -EBUSY; 2608 conf->auto_open_plinks = nconf->auto_open_plinks; 2609 } 2610 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2611 conf->dot11MeshNbrOffsetMaxNeighbor = 2612 nconf->dot11MeshNbrOffsetMaxNeighbor; 2613 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2614 conf->dot11MeshHWMPmaxPREQretries = 2615 nconf->dot11MeshHWMPmaxPREQretries; 2616 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2617 conf->path_refresh_time = nconf->path_refresh_time; 2618 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2619 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2620 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2621 conf->dot11MeshHWMPactivePathTimeout = 2622 nconf->dot11MeshHWMPactivePathTimeout; 2623 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2624 conf->dot11MeshHWMPpreqMinInterval = 2625 nconf->dot11MeshHWMPpreqMinInterval; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2627 conf->dot11MeshHWMPperrMinInterval = 2628 nconf->dot11MeshHWMPperrMinInterval; 2629 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2630 mask)) 2631 conf->dot11MeshHWMPnetDiameterTraversalTime = 2632 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2633 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2634 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2635 ieee80211_mesh_root_setup(ifmsh); 2636 } 2637 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2638 /* our current gate announcement implementation rides on root 2639 * announcements, so require this ifmsh to also be a root node 2640 * */ 2641 if (nconf->dot11MeshGateAnnouncementProtocol && 2642 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2643 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2644 ieee80211_mesh_root_setup(ifmsh); 2645 } 2646 conf->dot11MeshGateAnnouncementProtocol = 2647 nconf->dot11MeshGateAnnouncementProtocol; 2648 } 2649 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2650 conf->dot11MeshHWMPRannInterval = 2651 nconf->dot11MeshHWMPRannInterval; 2652 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2653 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2654 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2655 /* our RSSI threshold implementation is supported only for 2656 * devices that report signal in dBm. 2657 */ 2658 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2659 return -EOPNOTSUPP; 2660 conf->rssi_threshold = nconf->rssi_threshold; 2661 } 2662 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2663 conf->ht_opmode = nconf->ht_opmode; 2664 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2665 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2666 BSS_CHANGED_HT); 2667 } 2668 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2669 conf->dot11MeshHWMPactivePathToRootTimeout = 2670 nconf->dot11MeshHWMPactivePathToRootTimeout; 2671 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2672 conf->dot11MeshHWMProotInterval = 2673 nconf->dot11MeshHWMProotInterval; 2674 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2675 conf->dot11MeshHWMPconfirmationInterval = 2676 nconf->dot11MeshHWMPconfirmationInterval; 2677 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2678 conf->power_mode = nconf->power_mode; 2679 ieee80211_mps_local_status_update(sdata); 2680 } 2681 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2682 conf->dot11MeshAwakeWindowDuration = 2683 nconf->dot11MeshAwakeWindowDuration; 2684 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2685 conf->plink_timeout = nconf->plink_timeout; 2686 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2687 conf->dot11MeshConnectedToMeshGate = 2688 nconf->dot11MeshConnectedToMeshGate; 2689 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2690 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2691 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2692 conf->dot11MeshConnectedToAuthServer = 2693 nconf->dot11MeshConnectedToAuthServer; 2694 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2695 return 0; 2696 } 2697 2698 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2699 const struct mesh_config *conf, 2700 const struct mesh_setup *setup) 2701 { 2702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2703 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2704 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2705 int err; 2706 2707 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2708 2709 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2710 err = copy_mesh_setup(ifmsh, setup); 2711 if (err) 2712 return err; 2713 2714 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2715 2716 /* can mesh use other SMPS modes? */ 2717 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2718 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2719 2720 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2721 IEEE80211_CHANCTX_SHARED); 2722 if (err) 2723 return err; 2724 2725 return ieee80211_start_mesh(sdata); 2726 } 2727 2728 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2729 { 2730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2731 2732 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2733 2734 ieee80211_stop_mesh(sdata); 2735 ieee80211_link_release_channel(&sdata->deflink); 2736 kfree(sdata->u.mesh.ie); 2737 2738 return 0; 2739 } 2740 #endif 2741 2742 static int ieee80211_change_bss(struct wiphy *wiphy, 2743 struct net_device *dev, 2744 struct bss_parameters *params) 2745 { 2746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2747 struct ieee80211_link_data *link; 2748 struct ieee80211_supported_band *sband; 2749 u64 changed = 0; 2750 2751 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2752 if (IS_ERR(link)) 2753 return PTR_ERR(link); 2754 2755 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2756 return -ENOENT; 2757 2758 sband = ieee80211_get_link_sband(link); 2759 if (!sband) 2760 return -EINVAL; 2761 2762 if (params->basic_rates) { 2763 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2764 wiphy->bands[sband->band], 2765 params->basic_rates, 2766 params->basic_rates_len, 2767 &link->conf->basic_rates)) 2768 return -EINVAL; 2769 changed |= BSS_CHANGED_BASIC_RATES; 2770 ieee80211_check_rate_mask(link); 2771 } 2772 2773 if (params->use_cts_prot >= 0) { 2774 link->conf->use_cts_prot = params->use_cts_prot; 2775 changed |= BSS_CHANGED_ERP_CTS_PROT; 2776 } 2777 if (params->use_short_preamble >= 0) { 2778 link->conf->use_short_preamble = params->use_short_preamble; 2779 changed |= BSS_CHANGED_ERP_PREAMBLE; 2780 } 2781 2782 if (!link->conf->use_short_slot && 2783 (sband->band == NL80211_BAND_5GHZ || 2784 sband->band == NL80211_BAND_6GHZ)) { 2785 link->conf->use_short_slot = true; 2786 changed |= BSS_CHANGED_ERP_SLOT; 2787 } 2788 2789 if (params->use_short_slot_time >= 0) { 2790 link->conf->use_short_slot = params->use_short_slot_time; 2791 changed |= BSS_CHANGED_ERP_SLOT; 2792 } 2793 2794 if (params->ap_isolate >= 0) { 2795 if (params->ap_isolate) 2796 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2797 else 2798 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2799 ieee80211_check_fast_rx_iface(sdata); 2800 } 2801 2802 if (params->ht_opmode >= 0) { 2803 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2804 changed |= BSS_CHANGED_HT; 2805 } 2806 2807 if (params->p2p_ctwindow >= 0) { 2808 link->conf->p2p_noa_attr.oppps_ctwindow &= 2809 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2810 link->conf->p2p_noa_attr.oppps_ctwindow |= 2811 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2812 changed |= BSS_CHANGED_P2P_PS; 2813 } 2814 2815 if (params->p2p_opp_ps > 0) { 2816 link->conf->p2p_noa_attr.oppps_ctwindow |= 2817 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2818 changed |= BSS_CHANGED_P2P_PS; 2819 } else if (params->p2p_opp_ps == 0) { 2820 link->conf->p2p_noa_attr.oppps_ctwindow &= 2821 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2822 changed |= BSS_CHANGED_P2P_PS; 2823 } 2824 2825 ieee80211_link_info_change_notify(sdata, link, changed); 2826 2827 return 0; 2828 } 2829 2830 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2831 struct net_device *dev, 2832 struct ieee80211_txq_params *params) 2833 { 2834 struct ieee80211_local *local = wiphy_priv(wiphy); 2835 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2836 struct ieee80211_link_data *link = 2837 ieee80211_link_or_deflink(sdata, params->link_id, true); 2838 struct ieee80211_tx_queue_params p; 2839 2840 if (!local->ops->conf_tx) 2841 return -EOPNOTSUPP; 2842 2843 if (local->hw.queues < IEEE80211_NUM_ACS) 2844 return -EOPNOTSUPP; 2845 2846 if (IS_ERR(link)) 2847 return PTR_ERR(link); 2848 2849 memset(&p, 0, sizeof(p)); 2850 p.aifs = params->aifs; 2851 p.cw_max = params->cwmax; 2852 p.cw_min = params->cwmin; 2853 p.txop = params->txop; 2854 2855 /* 2856 * Setting tx queue params disables u-apsd because it's only 2857 * called in master mode. 2858 */ 2859 p.uapsd = false; 2860 2861 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2862 2863 link->tx_conf[params->ac] = p; 2864 if (drv_conf_tx(local, link, params->ac, &p)) { 2865 wiphy_debug(local->hw.wiphy, 2866 "failed to set TX queue parameters for AC %d\n", 2867 params->ac); 2868 return -EINVAL; 2869 } 2870 2871 ieee80211_link_info_change_notify(sdata, link, 2872 BSS_CHANGED_QOS); 2873 2874 return 0; 2875 } 2876 2877 #ifdef CONFIG_PM 2878 static int ieee80211_suspend(struct wiphy *wiphy, 2879 struct cfg80211_wowlan *wowlan) 2880 { 2881 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2882 } 2883 2884 static int ieee80211_resume(struct wiphy *wiphy) 2885 { 2886 return __ieee80211_resume(wiphy_priv(wiphy)); 2887 } 2888 #else 2889 #define ieee80211_suspend NULL 2890 #define ieee80211_resume NULL 2891 #endif 2892 2893 static int ieee80211_scan(struct wiphy *wiphy, 2894 struct cfg80211_scan_request *req) 2895 { 2896 struct ieee80211_sub_if_data *sdata; 2897 2898 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2899 2900 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2901 case NL80211_IFTYPE_STATION: 2902 case NL80211_IFTYPE_ADHOC: 2903 case NL80211_IFTYPE_MESH_POINT: 2904 case NL80211_IFTYPE_P2P_CLIENT: 2905 case NL80211_IFTYPE_P2P_DEVICE: 2906 break; 2907 case NL80211_IFTYPE_P2P_GO: 2908 if (sdata->local->ops->hw_scan) 2909 break; 2910 /* 2911 * FIXME: implement NoA while scanning in software, 2912 * for now fall through to allow scanning only when 2913 * beaconing hasn't been configured yet 2914 */ 2915 fallthrough; 2916 case NL80211_IFTYPE_AP: 2917 /* 2918 * If the scan has been forced (and the driver supports 2919 * forcing), don't care about being beaconing already. 2920 * This will create problems to the attached stations (e.g. all 2921 * the frames sent while scanning on other channel will be 2922 * lost) 2923 */ 2924 if (sdata->deflink.u.ap.beacon && 2925 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2926 !(req->flags & NL80211_SCAN_FLAG_AP))) 2927 return -EOPNOTSUPP; 2928 break; 2929 case NL80211_IFTYPE_NAN: 2930 default: 2931 return -EOPNOTSUPP; 2932 } 2933 2934 return ieee80211_request_scan(sdata, req); 2935 } 2936 2937 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2938 { 2939 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2940 } 2941 2942 static int 2943 ieee80211_sched_scan_start(struct wiphy *wiphy, 2944 struct net_device *dev, 2945 struct cfg80211_sched_scan_request *req) 2946 { 2947 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2948 2949 if (!sdata->local->ops->sched_scan_start) 2950 return -EOPNOTSUPP; 2951 2952 return ieee80211_request_sched_scan_start(sdata, req); 2953 } 2954 2955 static int 2956 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2957 u64 reqid) 2958 { 2959 struct ieee80211_local *local = wiphy_priv(wiphy); 2960 2961 if (!local->ops->sched_scan_stop) 2962 return -EOPNOTSUPP; 2963 2964 return ieee80211_request_sched_scan_stop(local); 2965 } 2966 2967 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2968 struct cfg80211_auth_request *req) 2969 { 2970 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2971 } 2972 2973 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2974 struct cfg80211_assoc_request *req) 2975 { 2976 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2977 } 2978 2979 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2980 struct cfg80211_deauth_request *req) 2981 { 2982 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2983 } 2984 2985 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2986 struct cfg80211_disassoc_request *req) 2987 { 2988 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2989 } 2990 2991 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2992 struct cfg80211_ibss_params *params) 2993 { 2994 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2995 } 2996 2997 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2998 { 2999 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3000 } 3001 3002 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 3003 struct ocb_setup *setup) 3004 { 3005 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 3006 } 3007 3008 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 3009 { 3010 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3011 } 3012 3013 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 3014 int rate[NUM_NL80211_BANDS]) 3015 { 3016 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3017 3018 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3019 sizeof(int) * NUM_NL80211_BANDS); 3020 3021 if (ieee80211_sdata_running(sdata)) 3022 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3023 BSS_CHANGED_MCAST_RATE); 3024 3025 return 0; 3026 } 3027 3028 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 3029 { 3030 struct ieee80211_local *local = wiphy_priv(wiphy); 3031 int err; 3032 3033 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3034 ieee80211_check_fast_xmit_all(local); 3035 3036 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 3037 3038 if (err) { 3039 ieee80211_check_fast_xmit_all(local); 3040 return err; 3041 } 3042 } 3043 3044 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3045 (changed & WIPHY_PARAM_DYN_ACK)) { 3046 s16 coverage_class; 3047 3048 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3049 wiphy->coverage_class : -1; 3050 err = drv_set_coverage_class(local, coverage_class); 3051 3052 if (err) 3053 return err; 3054 } 3055 3056 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3057 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 3058 3059 if (err) 3060 return err; 3061 } 3062 3063 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3064 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3065 return -EINVAL; 3066 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3067 } 3068 if (changed & WIPHY_PARAM_RETRY_LONG) { 3069 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3070 return -EINVAL; 3071 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3072 } 3073 if (changed & 3074 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3075 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3076 3077 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3078 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3079 WIPHY_PARAM_TXQ_QUANTUM)) 3080 ieee80211_txq_set_params(local); 3081 3082 return 0; 3083 } 3084 3085 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3086 struct wireless_dev *wdev, 3087 enum nl80211_tx_power_setting type, int mbm) 3088 { 3089 struct ieee80211_local *local = wiphy_priv(wiphy); 3090 struct ieee80211_sub_if_data *sdata; 3091 enum nl80211_tx_power_setting txp_type = type; 3092 bool update_txp_type = false; 3093 bool has_monitor = false; 3094 int user_power_level; 3095 int old_power = local->user_power_level; 3096 3097 lockdep_assert_wiphy(local->hw.wiphy); 3098 3099 switch (type) { 3100 case NL80211_TX_POWER_AUTOMATIC: 3101 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3102 txp_type = NL80211_TX_POWER_LIMITED; 3103 break; 3104 case NL80211_TX_POWER_LIMITED: 3105 case NL80211_TX_POWER_FIXED: 3106 if (mbm < 0 || (mbm % 100)) 3107 return -EOPNOTSUPP; 3108 user_power_level = MBM_TO_DBM(mbm); 3109 break; 3110 default: 3111 return -EINVAL; 3112 } 3113 3114 if (wdev) { 3115 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3116 3117 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3118 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3119 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3120 return -EOPNOTSUPP; 3121 3122 sdata = wiphy_dereference(local->hw.wiphy, 3123 local->monitor_sdata); 3124 if (!sdata) 3125 return -EOPNOTSUPP; 3126 } 3127 3128 for (int link_id = 0; 3129 link_id < ARRAY_SIZE(sdata->link); 3130 link_id++) { 3131 struct ieee80211_link_data *link = 3132 wiphy_dereference(wiphy, sdata->link[link_id]); 3133 3134 if (!link) 3135 continue; 3136 3137 link->user_power_level = user_power_level; 3138 3139 if (txp_type != link->conf->txpower_type) { 3140 update_txp_type = true; 3141 link->conf->txpower_type = txp_type; 3142 } 3143 3144 ieee80211_recalc_txpower(link, update_txp_type); 3145 } 3146 return 0; 3147 } 3148 3149 local->user_power_level = user_power_level; 3150 3151 list_for_each_entry(sdata, &local->interfaces, list) { 3152 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3153 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3154 has_monitor = true; 3155 continue; 3156 } 3157 3158 for (int link_id = 0; 3159 link_id < ARRAY_SIZE(sdata->link); 3160 link_id++) { 3161 struct ieee80211_link_data *link = 3162 wiphy_dereference(wiphy, sdata->link[link_id]); 3163 3164 if (!link) 3165 continue; 3166 3167 link->user_power_level = local->user_power_level; 3168 if (txp_type != link->conf->txpower_type) 3169 update_txp_type = true; 3170 link->conf->txpower_type = txp_type; 3171 } 3172 } 3173 list_for_each_entry(sdata, &local->interfaces, list) { 3174 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3175 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3176 continue; 3177 3178 for (int link_id = 0; 3179 link_id < ARRAY_SIZE(sdata->link); 3180 link_id++) { 3181 struct ieee80211_link_data *link = 3182 wiphy_dereference(wiphy, sdata->link[link_id]); 3183 3184 if (!link) 3185 continue; 3186 3187 ieee80211_recalc_txpower(link, update_txp_type); 3188 } 3189 } 3190 3191 if (has_monitor) { 3192 sdata = wiphy_dereference(local->hw.wiphy, 3193 local->monitor_sdata); 3194 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3195 sdata->deflink.user_power_level = local->user_power_level; 3196 if (txp_type != sdata->vif.bss_conf.txpower_type) 3197 update_txp_type = true; 3198 sdata->vif.bss_conf.txpower_type = txp_type; 3199 3200 ieee80211_recalc_txpower(&sdata->deflink, 3201 update_txp_type); 3202 } 3203 } 3204 3205 if (local->emulate_chanctx && 3206 (old_power != local->user_power_level)) 3207 ieee80211_hw_conf_chan(local); 3208 3209 return 0; 3210 } 3211 3212 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3213 struct wireless_dev *wdev, 3214 unsigned int link_id, 3215 int *dbm) 3216 { 3217 struct ieee80211_local *local = wiphy_priv(wiphy); 3218 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3219 struct ieee80211_link_data *link_data; 3220 3221 if (local->ops->get_txpower && 3222 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3223 return drv_get_txpower(local, sdata, link_id, dbm); 3224 3225 if (local->emulate_chanctx) { 3226 *dbm = local->hw.conf.power_level; 3227 } else { 3228 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3229 3230 if (link_data) 3231 *dbm = link_data->conf->txpower; 3232 else 3233 return -ENOLINK; 3234 } 3235 3236 /* INT_MIN indicates no power level was set yet */ 3237 if (*dbm == INT_MIN) 3238 return -EINVAL; 3239 3240 return 0; 3241 } 3242 3243 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3244 { 3245 struct ieee80211_local *local = wiphy_priv(wiphy); 3246 3247 drv_rfkill_poll(local); 3248 } 3249 3250 #ifdef CONFIG_NL80211_TESTMODE 3251 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3252 struct wireless_dev *wdev, 3253 void *data, int len) 3254 { 3255 struct ieee80211_local *local = wiphy_priv(wiphy); 3256 struct ieee80211_vif *vif = NULL; 3257 3258 if (!local->ops->testmode_cmd) 3259 return -EOPNOTSUPP; 3260 3261 if (wdev) { 3262 struct ieee80211_sub_if_data *sdata; 3263 3264 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3265 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3266 vif = &sdata->vif; 3267 } 3268 3269 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3270 } 3271 3272 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3273 struct sk_buff *skb, 3274 struct netlink_callback *cb, 3275 void *data, int len) 3276 { 3277 struct ieee80211_local *local = wiphy_priv(wiphy); 3278 3279 if (!local->ops->testmode_dump) 3280 return -EOPNOTSUPP; 3281 3282 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3283 } 3284 #endif 3285 3286 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3287 struct ieee80211_link_data *link, 3288 enum ieee80211_smps_mode smps_mode) 3289 { 3290 const u8 *ap; 3291 enum ieee80211_smps_mode old_req; 3292 int err; 3293 struct sta_info *sta; 3294 bool tdls_peer_found = false; 3295 3296 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3297 3298 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3299 return -EINVAL; 3300 3301 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3302 return 0; 3303 3304 old_req = link->u.mgd.req_smps; 3305 link->u.mgd.req_smps = smps_mode; 3306 3307 /* The driver indicated that EML is enabled for the interface, which 3308 * implies that SMPS flows towards the AP should be stopped. 3309 */ 3310 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3311 return 0; 3312 3313 if (old_req == smps_mode && 3314 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3315 return 0; 3316 3317 /* 3318 * If not associated, or current association is not an HT 3319 * association, there's no need to do anything, just store 3320 * the new value until we associate. 3321 */ 3322 if (!sdata->u.mgd.associated || 3323 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3324 return 0; 3325 3326 ap = sdata->vif.cfg.ap_addr; 3327 3328 rcu_read_lock(); 3329 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3330 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3331 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3332 continue; 3333 3334 tdls_peer_found = true; 3335 break; 3336 } 3337 rcu_read_unlock(); 3338 3339 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3340 if (tdls_peer_found || !sdata->u.mgd.powersave) 3341 smps_mode = IEEE80211_SMPS_OFF; 3342 else 3343 smps_mode = IEEE80211_SMPS_DYNAMIC; 3344 } 3345 3346 /* send SM PS frame to AP */ 3347 err = ieee80211_send_smps_action(sdata, smps_mode, 3348 ap, ap, 3349 ieee80211_vif_is_mld(&sdata->vif) ? 3350 link->link_id : -1); 3351 if (err) 3352 link->u.mgd.req_smps = old_req; 3353 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3354 ieee80211_teardown_tdls_peers(link); 3355 3356 return err; 3357 } 3358 3359 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3360 bool enabled, int timeout) 3361 { 3362 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3363 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3364 unsigned int link_id; 3365 3366 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3367 return -EOPNOTSUPP; 3368 3369 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3370 return -EOPNOTSUPP; 3371 3372 if (enabled == sdata->u.mgd.powersave && 3373 timeout == local->dynamic_ps_forced_timeout) 3374 return 0; 3375 3376 sdata->u.mgd.powersave = enabled; 3377 local->dynamic_ps_forced_timeout = timeout; 3378 3379 /* no change, but if automatic follow powersave */ 3380 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3381 struct ieee80211_link_data *link; 3382 3383 link = sdata_dereference(sdata->link[link_id], sdata); 3384 3385 if (!link) 3386 continue; 3387 __ieee80211_request_smps_mgd(sdata, link, 3388 link->u.mgd.req_smps); 3389 } 3390 3391 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3392 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3393 3394 ieee80211_recalc_ps(local); 3395 ieee80211_recalc_ps_vif(sdata); 3396 ieee80211_check_fast_rx_iface(sdata); 3397 3398 return 0; 3399 } 3400 3401 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3402 struct ieee80211_link_data *link, 3403 s32 rssi_thold, u32 rssi_hyst, 3404 s32 rssi_low, s32 rssi_high) 3405 { 3406 struct ieee80211_bss_conf *conf; 3407 3408 if (!link || !link->conf) 3409 return; 3410 3411 conf = link->conf; 3412 3413 if (rssi_thold && rssi_hyst && 3414 rssi_thold == conf->cqm_rssi_thold && 3415 rssi_hyst == conf->cqm_rssi_hyst) 3416 return; 3417 3418 conf->cqm_rssi_thold = rssi_thold; 3419 conf->cqm_rssi_hyst = rssi_hyst; 3420 conf->cqm_rssi_low = rssi_low; 3421 conf->cqm_rssi_high = rssi_high; 3422 link->u.mgd.last_cqm_event_signal = 0; 3423 3424 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3425 return; 3426 3427 if (sdata->u.mgd.associated && 3428 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3429 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3430 } 3431 3432 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3433 struct net_device *dev, 3434 s32 rssi_thold, u32 rssi_hyst) 3435 { 3436 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3437 struct ieee80211_vif *vif = &sdata->vif; 3438 int link_id; 3439 3440 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3441 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3442 return -EOPNOTSUPP; 3443 3444 /* For MLD, handle CQM change on all the active links */ 3445 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3446 struct ieee80211_link_data *link = 3447 sdata_dereference(sdata->link[link_id], sdata); 3448 3449 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3450 0, 0); 3451 } 3452 3453 return 0; 3454 } 3455 3456 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3457 struct net_device *dev, 3458 s32 rssi_low, s32 rssi_high) 3459 { 3460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3461 struct ieee80211_vif *vif = &sdata->vif; 3462 int link_id; 3463 3464 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3465 return -EOPNOTSUPP; 3466 3467 /* For MLD, handle CQM change on all the active links */ 3468 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3469 struct ieee80211_link_data *link = 3470 sdata_dereference(sdata->link[link_id], sdata); 3471 3472 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3473 rssi_low, rssi_high); 3474 } 3475 3476 return 0; 3477 } 3478 3479 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3480 struct net_device *dev, 3481 unsigned int link_id, 3482 const u8 *addr, 3483 const struct cfg80211_bitrate_mask *mask) 3484 { 3485 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3486 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3487 int i, ret; 3488 3489 if (!ieee80211_sdata_running(sdata)) 3490 return -ENETDOWN; 3491 3492 /* 3493 * If active validate the setting and reject it if it doesn't leave 3494 * at least one basic rate usable, since we really have to be able 3495 * to send something, and if we're an AP we have to be able to do 3496 * so at a basic rate so that all clients can receive it. 3497 */ 3498 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3499 sdata->vif.bss_conf.chanreq.oper.chan) { 3500 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3501 enum nl80211_band band; 3502 3503 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3504 3505 if (!(mask->control[band].legacy & basic_rates)) 3506 return -EINVAL; 3507 } 3508 3509 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3510 ret = drv_set_bitrate_mask(local, sdata, mask); 3511 if (ret) 3512 return ret; 3513 } 3514 3515 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3516 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3517 int j; 3518 3519 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3520 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3521 sizeof(mask->control[i].ht_mcs)); 3522 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3523 mask->control[i].vht_mcs, 3524 sizeof(mask->control[i].vht_mcs)); 3525 3526 sdata->rc_has_mcs_mask[i] = false; 3527 sdata->rc_has_vht_mcs_mask[i] = false; 3528 if (!sband) 3529 continue; 3530 3531 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3532 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3533 sdata->rc_has_mcs_mask[i] = true; 3534 break; 3535 } 3536 } 3537 3538 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3539 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3540 sdata->rc_has_vht_mcs_mask[i] = true; 3541 break; 3542 } 3543 } 3544 } 3545 3546 return 0; 3547 } 3548 3549 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3550 struct net_device *dev, 3551 struct cfg80211_chan_def *chandef, 3552 u32 cac_time_ms, int link_id) 3553 { 3554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3555 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3556 struct ieee80211_local *local = sdata->local; 3557 struct ieee80211_link_data *link_data; 3558 int err; 3559 3560 lockdep_assert_wiphy(local->hw.wiphy); 3561 3562 if (!list_empty(&local->roc_list) || local->scanning) 3563 return -EBUSY; 3564 3565 link_data = sdata_dereference(sdata->link[link_id], sdata); 3566 if (!link_data) 3567 return -ENOLINK; 3568 3569 /* whatever, but channel contexts should not complain about that one */ 3570 link_data->smps_mode = IEEE80211_SMPS_OFF; 3571 link_data->needed_rx_chains = local->rx_chains; 3572 3573 err = ieee80211_link_use_channel(link_data, &chanreq, 3574 IEEE80211_CHANCTX_SHARED); 3575 if (err) 3576 return err; 3577 3578 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3579 msecs_to_jiffies(cac_time_ms)); 3580 3581 return 0; 3582 } 3583 3584 static void ieee80211_end_cac(struct wiphy *wiphy, 3585 struct net_device *dev, unsigned int link_id) 3586 { 3587 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3588 struct ieee80211_local *local = sdata->local; 3589 struct ieee80211_link_data *link_data; 3590 3591 lockdep_assert_wiphy(local->hw.wiphy); 3592 3593 list_for_each_entry(sdata, &local->interfaces, list) { 3594 link_data = sdata_dereference(sdata->link[link_id], sdata); 3595 if (!link_data) 3596 continue; 3597 3598 wiphy_delayed_work_cancel(wiphy, 3599 &link_data->dfs_cac_timer_work); 3600 3601 if (sdata->wdev.links[link_id].cac_started) { 3602 ieee80211_link_release_channel(link_data); 3603 sdata->wdev.links[link_id].cac_started = false; 3604 } 3605 } 3606 } 3607 3608 static struct cfg80211_beacon_data * 3609 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3610 { 3611 struct cfg80211_beacon_data *new_beacon; 3612 u8 *pos; 3613 int len; 3614 3615 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3616 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3617 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3618 3619 if (beacon->mbssid_ies) 3620 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3621 beacon->rnr_ies, 3622 beacon->mbssid_ies->cnt); 3623 3624 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3625 if (!new_beacon) 3626 return NULL; 3627 3628 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3629 new_beacon->mbssid_ies = 3630 kzalloc(struct_size(new_beacon->mbssid_ies, 3631 elem, beacon->mbssid_ies->cnt), 3632 GFP_KERNEL); 3633 if (!new_beacon->mbssid_ies) { 3634 kfree(new_beacon); 3635 return NULL; 3636 } 3637 3638 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3639 new_beacon->rnr_ies = 3640 kzalloc(struct_size(new_beacon->rnr_ies, 3641 elem, beacon->rnr_ies->cnt), 3642 GFP_KERNEL); 3643 if (!new_beacon->rnr_ies) { 3644 kfree(new_beacon->mbssid_ies); 3645 kfree(new_beacon); 3646 return NULL; 3647 } 3648 } 3649 } 3650 3651 pos = (u8 *)(new_beacon + 1); 3652 if (beacon->head_len) { 3653 new_beacon->head_len = beacon->head_len; 3654 new_beacon->head = pos; 3655 memcpy(pos, beacon->head, beacon->head_len); 3656 pos += beacon->head_len; 3657 } 3658 if (beacon->tail_len) { 3659 new_beacon->tail_len = beacon->tail_len; 3660 new_beacon->tail = pos; 3661 memcpy(pos, beacon->tail, beacon->tail_len); 3662 pos += beacon->tail_len; 3663 } 3664 if (beacon->beacon_ies_len) { 3665 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3666 new_beacon->beacon_ies = pos; 3667 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3668 pos += beacon->beacon_ies_len; 3669 } 3670 if (beacon->proberesp_ies_len) { 3671 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3672 new_beacon->proberesp_ies = pos; 3673 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3674 pos += beacon->proberesp_ies_len; 3675 } 3676 if (beacon->assocresp_ies_len) { 3677 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3678 new_beacon->assocresp_ies = pos; 3679 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3680 pos += beacon->assocresp_ies_len; 3681 } 3682 if (beacon->probe_resp_len) { 3683 new_beacon->probe_resp_len = beacon->probe_resp_len; 3684 new_beacon->probe_resp = pos; 3685 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3686 pos += beacon->probe_resp_len; 3687 } 3688 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3689 pos += ieee80211_copy_mbssid_beacon(pos, 3690 new_beacon->mbssid_ies, 3691 beacon->mbssid_ies); 3692 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3693 pos += ieee80211_copy_rnr_beacon(pos, 3694 new_beacon->rnr_ies, 3695 beacon->rnr_ies); 3696 } 3697 3698 /* might copy -1, meaning no changes requested */ 3699 new_beacon->ftm_responder = beacon->ftm_responder; 3700 if (beacon->lci) { 3701 new_beacon->lci_len = beacon->lci_len; 3702 new_beacon->lci = pos; 3703 memcpy(pos, beacon->lci, beacon->lci_len); 3704 pos += beacon->lci_len; 3705 } 3706 if (beacon->civicloc) { 3707 new_beacon->civicloc_len = beacon->civicloc_len; 3708 new_beacon->civicloc = pos; 3709 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3710 pos += beacon->civicloc_len; 3711 } 3712 3713 return new_beacon; 3714 } 3715 3716 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3717 { 3718 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3719 struct ieee80211_local *local = sdata->local; 3720 struct ieee80211_bss_conf *tx_bss_conf; 3721 struct ieee80211_link_data *link_data; 3722 3723 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3724 return; 3725 3726 rcu_read_lock(); 3727 3728 link_data = rcu_dereference(sdata->link[link_id]); 3729 if (WARN_ON(!link_data)) { 3730 rcu_read_unlock(); 3731 return; 3732 } 3733 3734 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf); 3735 if (tx_bss_conf == link_data->conf) { 3736 /* Trigger ieee80211_csa_finish() on the non-transmitting 3737 * interfaces when channel switch is received on 3738 * transmitting interface 3739 */ 3740 struct ieee80211_link_data *iter; 3741 3742 for_each_sdata_link(local, iter) { 3743 if (iter->sdata == sdata || 3744 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf) 3745 continue; 3746 3747 wiphy_work_queue(iter->sdata->local->hw.wiphy, 3748 &iter->csa.finalize_work); 3749 } 3750 } 3751 3752 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 3753 3754 rcu_read_unlock(); 3755 } 3756 EXPORT_SYMBOL(ieee80211_csa_finish); 3757 3758 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 3759 { 3760 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3761 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3762 struct ieee80211_local *local = sdata->local; 3763 3764 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3765 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3766 } 3767 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3768 3769 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3770 u64 *changed) 3771 { 3772 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3773 int err; 3774 3775 switch (sdata->vif.type) { 3776 case NL80211_IFTYPE_AP: 3777 if (!link_data->u.ap.next_beacon) 3778 return -EINVAL; 3779 3780 err = ieee80211_assign_beacon(sdata, link_data, 3781 link_data->u.ap.next_beacon, 3782 NULL, NULL, changed); 3783 ieee80211_free_next_beacon(link_data); 3784 3785 if (err < 0) 3786 return err; 3787 break; 3788 case NL80211_IFTYPE_ADHOC: 3789 err = ieee80211_ibss_finish_csa(sdata, changed); 3790 if (err < 0) 3791 return err; 3792 break; 3793 #ifdef CONFIG_MAC80211_MESH 3794 case NL80211_IFTYPE_MESH_POINT: 3795 err = ieee80211_mesh_finish_csa(sdata, changed); 3796 if (err < 0) 3797 return err; 3798 break; 3799 #endif 3800 default: 3801 WARN_ON(1); 3802 return -EINVAL; 3803 } 3804 3805 return 0; 3806 } 3807 3808 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3809 { 3810 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3811 struct ieee80211_local *local = sdata->local; 3812 struct ieee80211_bss_conf *link_conf = link_data->conf; 3813 u64 changed = 0; 3814 int err; 3815 3816 lockdep_assert_wiphy(local->hw.wiphy); 3817 3818 /* 3819 * using reservation isn't immediate as it may be deferred until later 3820 * with multi-vif. once reservation is complete it will re-schedule the 3821 * work with no reserved_chanctx so verify chandef to check if it 3822 * completed successfully 3823 */ 3824 3825 if (link_data->reserved_chanctx) { 3826 /* 3827 * with multi-vif csa driver may call ieee80211_csa_finish() 3828 * many times while waiting for other interfaces to use their 3829 * reservations 3830 */ 3831 if (link_data->reserved_ready) 3832 return 0; 3833 3834 return ieee80211_link_use_reserved_context(link_data); 3835 } 3836 3837 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3838 &link_data->csa.chanreq.oper)) 3839 return -EINVAL; 3840 3841 link_conf->csa_active = false; 3842 3843 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3844 if (err) 3845 return err; 3846 3847 ieee80211_link_info_change_notify(sdata, link_data, changed); 3848 3849 ieee80211_vif_unblock_queues_csa(sdata); 3850 3851 err = drv_post_channel_switch(link_data); 3852 if (err) 3853 return err; 3854 3855 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 3856 link_data->link_id); 3857 3858 return 0; 3859 } 3860 3861 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3862 { 3863 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3864 3865 if (__ieee80211_csa_finalize(link_data)) { 3866 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3867 link_data->link_id); 3868 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3869 GFP_KERNEL); 3870 } 3871 } 3872 3873 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3874 { 3875 struct ieee80211_link_data *link = 3876 container_of(work, struct ieee80211_link_data, csa.finalize_work); 3877 struct ieee80211_sub_if_data *sdata = link->sdata; 3878 struct ieee80211_local *local = sdata->local; 3879 3880 lockdep_assert_wiphy(local->hw.wiphy); 3881 3882 /* AP might have been stopped while waiting for the lock. */ 3883 if (!link->conf->csa_active) 3884 return; 3885 3886 if (!ieee80211_sdata_running(sdata)) 3887 return; 3888 3889 ieee80211_csa_finalize(link); 3890 } 3891 3892 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3893 struct cfg80211_csa_settings *params, 3894 u64 *changed) 3895 { 3896 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3897 struct ieee80211_csa_settings csa = {}; 3898 int err; 3899 3900 switch (sdata->vif.type) { 3901 case NL80211_IFTYPE_AP: 3902 link_data->u.ap.next_beacon = 3903 cfg80211_beacon_dup(¶ms->beacon_after); 3904 if (!link_data->u.ap.next_beacon) 3905 return -ENOMEM; 3906 3907 /* 3908 * With a count of 0, we don't have to wait for any 3909 * TBTT before switching, so complete the CSA 3910 * immediately. In theory, with a count == 1 we 3911 * should delay the switch until just before the next 3912 * TBTT, but that would complicate things so we switch 3913 * immediately too. If we would delay the switch 3914 * until the next TBTT, we would have to set the probe 3915 * response here. 3916 * 3917 * TODO: A channel switch with count <= 1 without 3918 * sending a CSA action frame is kind of useless, 3919 * because the clients won't know we're changing 3920 * channels. The action frame must be implemented 3921 * either here or in the userspace. 3922 */ 3923 if (params->count <= 1) 3924 break; 3925 3926 if ((params->n_counter_offsets_beacon > 3927 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3928 (params->n_counter_offsets_presp > 3929 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3930 ieee80211_free_next_beacon(link_data); 3931 return -EINVAL; 3932 } 3933 3934 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3935 csa.counter_offsets_presp = params->counter_offsets_presp; 3936 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3937 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3938 csa.count = params->count; 3939 3940 err = ieee80211_assign_beacon(sdata, link_data, 3941 ¶ms->beacon_csa, &csa, 3942 NULL, changed); 3943 if (err < 0) { 3944 ieee80211_free_next_beacon(link_data); 3945 return err; 3946 } 3947 3948 break; 3949 case NL80211_IFTYPE_ADHOC: 3950 if (!sdata->vif.cfg.ibss_joined) 3951 return -EINVAL; 3952 3953 if (params->chandef.width != sdata->u.ibss.chandef.width) 3954 return -EINVAL; 3955 3956 switch (params->chandef.width) { 3957 case NL80211_CHAN_WIDTH_40: 3958 if (cfg80211_get_chandef_type(¶ms->chandef) != 3959 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3960 return -EINVAL; 3961 break; 3962 case NL80211_CHAN_WIDTH_5: 3963 case NL80211_CHAN_WIDTH_10: 3964 case NL80211_CHAN_WIDTH_20_NOHT: 3965 case NL80211_CHAN_WIDTH_20: 3966 break; 3967 default: 3968 return -EINVAL; 3969 } 3970 3971 /* changes into another band are not supported */ 3972 if (sdata->u.ibss.chandef.chan->band != 3973 params->chandef.chan->band) 3974 return -EINVAL; 3975 3976 /* see comments in the NL80211_IFTYPE_AP block */ 3977 if (params->count > 1) { 3978 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3979 if (err < 0) 3980 return err; 3981 } 3982 3983 ieee80211_send_action_csa(sdata, params); 3984 3985 break; 3986 #ifdef CONFIG_MAC80211_MESH 3987 case NL80211_IFTYPE_MESH_POINT: { 3988 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3989 3990 /* changes into another band are not supported */ 3991 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3992 params->chandef.chan->band) 3993 return -EINVAL; 3994 3995 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3996 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3997 if (!ifmsh->pre_value) 3998 ifmsh->pre_value = 1; 3999 else 4000 ifmsh->pre_value++; 4001 } 4002 4003 /* see comments in the NL80211_IFTYPE_AP block */ 4004 if (params->count > 1) { 4005 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 4006 if (err < 0) { 4007 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 4008 return err; 4009 } 4010 } 4011 4012 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 4013 ieee80211_send_action_csa(sdata, params); 4014 4015 break; 4016 } 4017 #endif 4018 default: 4019 return -EOPNOTSUPP; 4020 } 4021 4022 return 0; 4023 } 4024 4025 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4026 { 4027 link->conf->color_change_active = false; 4028 4029 ieee80211_free_next_beacon(link); 4030 4031 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4032 } 4033 4034 static int 4035 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4036 struct cfg80211_csa_settings *params) 4037 { 4038 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4039 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4040 struct ieee80211_local *local = sdata->local; 4041 struct ieee80211_channel_switch ch_switch = { 4042 .link_id = params->link_id, 4043 }; 4044 struct ieee80211_chanctx_conf *conf; 4045 struct ieee80211_chanctx *chanctx; 4046 struct ieee80211_bss_conf *link_conf; 4047 struct ieee80211_link_data *link_data; 4048 u64 changed = 0; 4049 u8 link_id = params->link_id; 4050 int err; 4051 4052 lockdep_assert_wiphy(local->hw.wiphy); 4053 4054 if (!list_empty(&local->roc_list) || local->scanning) 4055 return -EBUSY; 4056 4057 if (sdata->wdev.links[link_id].cac_started) 4058 return -EBUSY; 4059 4060 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4061 return -EINVAL; 4062 4063 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4064 if (!link_data) 4065 return -ENOLINK; 4066 4067 link_conf = link_data->conf; 4068 4069 if (chanreq.oper.punctured && !link_conf->eht_support) 4070 return -EINVAL; 4071 4072 /* don't allow another channel switch if one is already active. */ 4073 if (link_conf->csa_active) 4074 return -EBUSY; 4075 4076 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4077 if (!conf) { 4078 err = -EBUSY; 4079 goto out; 4080 } 4081 4082 if (params->chandef.chan->freq_offset) { 4083 /* this may work, but is untested */ 4084 err = -EOPNOTSUPP; 4085 goto out; 4086 } 4087 4088 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4089 4090 ch_switch.timestamp = 0; 4091 ch_switch.device_timestamp = 0; 4092 ch_switch.block_tx = params->block_tx; 4093 ch_switch.chandef = chanreq.oper; 4094 ch_switch.count = params->count; 4095 4096 err = drv_pre_channel_switch(sdata, &ch_switch); 4097 if (err) 4098 goto out; 4099 4100 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4101 chanctx->mode, 4102 params->radar_required); 4103 if (err) 4104 goto out; 4105 4106 /* if reservation is invalid then this will fail */ 4107 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4108 if (err) { 4109 ieee80211_link_unreserve_chanctx(link_data); 4110 goto out; 4111 } 4112 4113 /* if there is a color change in progress, abort it */ 4114 if (link_conf->color_change_active) 4115 ieee80211_color_change_abort(link_data); 4116 4117 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4118 if (err) { 4119 ieee80211_link_unreserve_chanctx(link_data); 4120 goto out; 4121 } 4122 4123 link_data->csa.chanreq = chanreq; 4124 link_conf->csa_active = true; 4125 4126 if (params->block_tx) 4127 ieee80211_vif_block_queues_csa(sdata); 4128 4129 cfg80211_ch_switch_started_notify(sdata->dev, 4130 &link_data->csa.chanreq.oper, link_id, 4131 params->count, params->block_tx); 4132 4133 if (changed) { 4134 ieee80211_link_info_change_notify(sdata, link_data, changed); 4135 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4136 } else { 4137 /* if the beacon didn't change, we can finalize immediately */ 4138 ieee80211_csa_finalize(link_data); 4139 } 4140 4141 out: 4142 return err; 4143 } 4144 4145 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4146 struct cfg80211_csa_settings *params) 4147 { 4148 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4149 struct ieee80211_local *local = sdata->local; 4150 4151 lockdep_assert_wiphy(local->hw.wiphy); 4152 4153 return __ieee80211_channel_switch(wiphy, dev, params); 4154 } 4155 4156 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4157 { 4158 lockdep_assert_wiphy(local->hw.wiphy); 4159 4160 local->roc_cookie_counter++; 4161 4162 /* wow, you wrapped 64 bits ... more likely a bug */ 4163 if (WARN_ON(local->roc_cookie_counter == 0)) 4164 local->roc_cookie_counter++; 4165 4166 return local->roc_cookie_counter; 4167 } 4168 4169 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4170 u64 *cookie, gfp_t gfp) 4171 { 4172 unsigned long spin_flags; 4173 struct sk_buff *ack_skb; 4174 int id; 4175 4176 ack_skb = skb_copy(skb, gfp); 4177 if (!ack_skb) 4178 return -ENOMEM; 4179 4180 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4181 id = idr_alloc(&local->ack_status_frames, ack_skb, 4182 1, 0x2000, GFP_ATOMIC); 4183 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4184 4185 if (id < 0) { 4186 kfree_skb(ack_skb); 4187 return -ENOMEM; 4188 } 4189 4190 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4191 IEEE80211_SKB_CB(skb)->status_data = id; 4192 4193 *cookie = ieee80211_mgmt_tx_cookie(local); 4194 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4195 4196 return 0; 4197 } 4198 4199 static void 4200 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4201 struct wireless_dev *wdev, 4202 struct mgmt_frame_regs *upd) 4203 { 4204 struct ieee80211_local *local = wiphy_priv(wiphy); 4205 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4206 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4207 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4208 bool global_change, intf_change; 4209 4210 global_change = 4211 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4212 (local->rx_mcast_action_reg != 4213 !!(upd->global_mcast_stypes & action_mask)); 4214 local->probe_req_reg = upd->global_stypes & preq_mask; 4215 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4216 4217 intf_change = (sdata->vif.probe_req_reg != 4218 !!(upd->interface_stypes & preq_mask)) || 4219 (sdata->vif.rx_mcast_action_reg != 4220 !!(upd->interface_mcast_stypes & action_mask)); 4221 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4222 sdata->vif.rx_mcast_action_reg = 4223 upd->interface_mcast_stypes & action_mask; 4224 4225 if (!local->open_count) 4226 return; 4227 4228 if (intf_change && ieee80211_sdata_running(sdata)) 4229 drv_config_iface_filter(local, sdata, 4230 sdata->vif.probe_req_reg ? 4231 FIF_PROBE_REQ : 0, 4232 FIF_PROBE_REQ); 4233 4234 if (global_change) 4235 ieee80211_configure_filter(local); 4236 } 4237 4238 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4239 { 4240 struct ieee80211_local *local = wiphy_priv(wiphy); 4241 int ret; 4242 4243 if (local->started) 4244 return -EOPNOTSUPP; 4245 4246 ret = drv_set_antenna(local, tx_ant, rx_ant); 4247 if (ret) 4248 return ret; 4249 4250 local->rx_chains = hweight8(rx_ant); 4251 return 0; 4252 } 4253 4254 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4255 { 4256 struct ieee80211_local *local = wiphy_priv(wiphy); 4257 4258 return drv_get_antenna(local, tx_ant, rx_ant); 4259 } 4260 4261 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4262 struct net_device *dev, 4263 struct cfg80211_gtk_rekey_data *data) 4264 { 4265 struct ieee80211_local *local = wiphy_priv(wiphy); 4266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4267 4268 if (!local->ops->set_rekey_data) 4269 return -EOPNOTSUPP; 4270 4271 drv_set_rekey_data(local, sdata, data); 4272 4273 return 0; 4274 } 4275 4276 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4277 const u8 *peer, u64 *cookie) 4278 { 4279 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4280 struct ieee80211_local *local = sdata->local; 4281 struct ieee80211_qos_hdr *nullfunc; 4282 struct sk_buff *skb; 4283 int size = sizeof(*nullfunc); 4284 __le16 fc; 4285 bool qos; 4286 struct ieee80211_tx_info *info; 4287 struct sta_info *sta; 4288 struct ieee80211_chanctx_conf *chanctx_conf; 4289 enum nl80211_band band; 4290 int ret; 4291 4292 /* the lock is needed to assign the cookie later */ 4293 lockdep_assert_wiphy(local->hw.wiphy); 4294 4295 rcu_read_lock(); 4296 sta = sta_info_get_bss(sdata, peer); 4297 if (!sta) { 4298 ret = -ENOLINK; 4299 goto unlock; 4300 } 4301 4302 qos = sta->sta.wme; 4303 4304 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4305 if (WARN_ON(!chanctx_conf)) { 4306 ret = -EINVAL; 4307 goto unlock; 4308 } 4309 band = chanctx_conf->def.chan->band; 4310 4311 if (qos) { 4312 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4313 IEEE80211_STYPE_QOS_NULLFUNC | 4314 IEEE80211_FCTL_FROMDS); 4315 } else { 4316 size -= 2; 4317 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4318 IEEE80211_STYPE_NULLFUNC | 4319 IEEE80211_FCTL_FROMDS); 4320 } 4321 4322 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4323 if (!skb) { 4324 ret = -ENOMEM; 4325 goto unlock; 4326 } 4327 4328 skb->dev = dev; 4329 4330 skb_reserve(skb, local->hw.extra_tx_headroom); 4331 4332 nullfunc = skb_put(skb, size); 4333 nullfunc->frame_control = fc; 4334 nullfunc->duration_id = 0; 4335 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4336 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4337 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4338 nullfunc->seq_ctrl = 0; 4339 4340 info = IEEE80211_SKB_CB(skb); 4341 4342 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4343 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4344 info->band = band; 4345 4346 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4347 skb->priority = 7; 4348 if (qos) 4349 nullfunc->qos_ctrl = cpu_to_le16(7); 4350 4351 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4352 if (ret) { 4353 kfree_skb(skb); 4354 goto unlock; 4355 } 4356 4357 local_bh_disable(); 4358 ieee80211_xmit(sdata, sta, skb); 4359 local_bh_enable(); 4360 4361 ret = 0; 4362 unlock: 4363 rcu_read_unlock(); 4364 4365 return ret; 4366 } 4367 4368 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4369 struct wireless_dev *wdev, 4370 unsigned int link_id, 4371 struct cfg80211_chan_def *chandef) 4372 { 4373 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4374 struct ieee80211_local *local = wiphy_priv(wiphy); 4375 struct ieee80211_chanctx_conf *chanctx_conf; 4376 struct ieee80211_link_data *link; 4377 int ret = -ENODATA; 4378 4379 rcu_read_lock(); 4380 link = rcu_dereference(sdata->link[link_id]); 4381 if (!link) { 4382 ret = -ENOLINK; 4383 goto out; 4384 } 4385 4386 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4387 if (chanctx_conf) { 4388 *chandef = link->conf->chanreq.oper; 4389 ret = 0; 4390 } else if (local->open_count > 0 && 4391 local->open_count == local->virt_monitors && 4392 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4393 *chandef = local->monitor_chanreq.oper; 4394 ret = 0; 4395 } 4396 out: 4397 rcu_read_unlock(); 4398 4399 return ret; 4400 } 4401 4402 #ifdef CONFIG_PM 4403 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4404 { 4405 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4406 } 4407 #endif 4408 4409 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4410 struct net_device *dev, 4411 struct cfg80211_qos_map *qos_map) 4412 { 4413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4414 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4415 4416 if (qos_map) { 4417 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4418 if (!new_qos_map) 4419 return -ENOMEM; 4420 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4421 } else { 4422 /* A NULL qos_map was passed to disable QoS mapping */ 4423 new_qos_map = NULL; 4424 } 4425 4426 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4427 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4428 if (old_qos_map) 4429 kfree_rcu(old_qos_map, rcu_head); 4430 4431 return 0; 4432 } 4433 4434 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4435 struct net_device *dev, 4436 unsigned int link_id, 4437 struct cfg80211_chan_def *chandef) 4438 { 4439 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4440 struct ieee80211_link_data *link; 4441 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4442 int ret; 4443 u64 changed = 0; 4444 4445 link = sdata_dereference(sdata->link[link_id], sdata); 4446 4447 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4448 if (ret == 0) 4449 ieee80211_link_info_change_notify(sdata, link, changed); 4450 4451 return ret; 4452 } 4453 4454 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4455 u8 tsid, const u8 *peer, u8 up, 4456 u16 admitted_time) 4457 { 4458 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4459 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4460 int ac = ieee802_1d_to_ac[up]; 4461 4462 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4463 return -EOPNOTSUPP; 4464 4465 if (!(sdata->wmm_acm & BIT(up))) 4466 return -EINVAL; 4467 4468 if (ifmgd->tx_tspec[ac].admitted_time) 4469 return -EBUSY; 4470 4471 if (admitted_time) { 4472 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4473 ifmgd->tx_tspec[ac].tsid = tsid; 4474 ifmgd->tx_tspec[ac].up = up; 4475 } 4476 4477 return 0; 4478 } 4479 4480 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4481 u8 tsid, const u8 *peer) 4482 { 4483 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4484 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4485 struct ieee80211_local *local = wiphy_priv(wiphy); 4486 int ac; 4487 4488 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4489 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4490 4491 /* skip unused entries */ 4492 if (!tx_tspec->admitted_time) 4493 continue; 4494 4495 if (tx_tspec->tsid != tsid) 4496 continue; 4497 4498 /* due to this new packets will be reassigned to non-ACM ACs */ 4499 tx_tspec->up = -1; 4500 4501 /* Make sure that all packets have been sent to avoid to 4502 * restore the QoS params on packets that are still on the 4503 * queues. 4504 */ 4505 synchronize_net(); 4506 ieee80211_flush_queues(local, sdata, false); 4507 4508 /* restore the normal QoS parameters 4509 * (unconditionally to avoid races) 4510 */ 4511 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4512 tx_tspec->downgraded = false; 4513 ieee80211_sta_handle_tspec_ac_params(sdata); 4514 4515 /* finally clear all the data */ 4516 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4517 4518 return 0; 4519 } 4520 4521 return -ENOENT; 4522 } 4523 4524 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4525 u8 inst_id, 4526 enum nl80211_nan_func_term_reason reason, 4527 gfp_t gfp) 4528 { 4529 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4530 struct cfg80211_nan_func *func; 4531 u64 cookie; 4532 4533 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4534 return; 4535 4536 spin_lock_bh(&sdata->u.nan.func_lock); 4537 4538 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4539 if (WARN_ON(!func)) { 4540 spin_unlock_bh(&sdata->u.nan.func_lock); 4541 return; 4542 } 4543 4544 cookie = func->cookie; 4545 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4546 4547 spin_unlock_bh(&sdata->u.nan.func_lock); 4548 4549 cfg80211_free_nan_func(func); 4550 4551 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4552 reason, cookie, gfp); 4553 } 4554 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4555 4556 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4557 struct cfg80211_nan_match_params *match, 4558 gfp_t gfp) 4559 { 4560 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4561 struct cfg80211_nan_func *func; 4562 4563 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4564 return; 4565 4566 spin_lock_bh(&sdata->u.nan.func_lock); 4567 4568 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4569 if (WARN_ON(!func)) { 4570 spin_unlock_bh(&sdata->u.nan.func_lock); 4571 return; 4572 } 4573 match->cookie = func->cookie; 4574 4575 spin_unlock_bh(&sdata->u.nan.func_lock); 4576 4577 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4578 } 4579 EXPORT_SYMBOL(ieee80211_nan_func_match); 4580 4581 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4582 struct net_device *dev, 4583 const bool enabled) 4584 { 4585 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4586 4587 sdata->u.ap.multicast_to_unicast = enabled; 4588 4589 return 0; 4590 } 4591 4592 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4593 struct txq_info *txqi) 4594 { 4595 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4596 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4597 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4598 } 4599 4600 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4601 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4602 txqstats->backlog_packets = txqi->tin.backlog_packets; 4603 } 4604 4605 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4606 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4607 txqstats->flows = txqi->tin.flows; 4608 } 4609 4610 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4611 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4612 txqstats->drops = txqi->cstats.drop_count; 4613 } 4614 4615 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4616 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4617 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4618 } 4619 4620 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4621 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4622 txqstats->overlimit = txqi->tin.overlimit; 4623 } 4624 4625 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4626 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4627 txqstats->collisions = txqi->tin.collisions; 4628 } 4629 4630 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4631 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4632 txqstats->tx_bytes = txqi->tin.tx_bytes; 4633 } 4634 4635 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4636 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4637 txqstats->tx_packets = txqi->tin.tx_packets; 4638 } 4639 } 4640 4641 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4642 struct wireless_dev *wdev, 4643 struct cfg80211_txq_stats *txqstats) 4644 { 4645 struct ieee80211_local *local = wiphy_priv(wiphy); 4646 struct ieee80211_sub_if_data *sdata; 4647 int ret = 0; 4648 4649 spin_lock_bh(&local->fq.lock); 4650 rcu_read_lock(); 4651 4652 if (wdev) { 4653 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4654 if (!sdata->vif.txq) { 4655 ret = 1; 4656 goto out; 4657 } 4658 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4659 } else { 4660 /* phy stats */ 4661 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4662 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4663 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4664 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4665 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4666 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4667 txqstats->backlog_packets = local->fq.backlog; 4668 txqstats->backlog_bytes = local->fq.memory_usage; 4669 txqstats->overlimit = local->fq.overlimit; 4670 txqstats->overmemory = local->fq.overmemory; 4671 txqstats->collisions = local->fq.collisions; 4672 txqstats->max_flows = local->fq.flows_cnt; 4673 } 4674 4675 out: 4676 rcu_read_unlock(); 4677 spin_unlock_bh(&local->fq.lock); 4678 4679 return ret; 4680 } 4681 4682 static int 4683 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4684 struct net_device *dev, 4685 struct cfg80211_ftm_responder_stats *ftm_stats) 4686 { 4687 struct ieee80211_local *local = wiphy_priv(wiphy); 4688 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4689 4690 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4691 } 4692 4693 static int 4694 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4695 struct cfg80211_pmsr_request *request) 4696 { 4697 struct ieee80211_local *local = wiphy_priv(wiphy); 4698 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4699 4700 return drv_start_pmsr(local, sdata, request); 4701 } 4702 4703 static void 4704 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4705 struct cfg80211_pmsr_request *request) 4706 { 4707 struct ieee80211_local *local = wiphy_priv(wiphy); 4708 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4709 4710 return drv_abort_pmsr(local, sdata, request); 4711 } 4712 4713 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4714 struct net_device *dev, 4715 struct cfg80211_tid_config *tid_conf) 4716 { 4717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4718 struct sta_info *sta; 4719 4720 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4721 4722 if (!sdata->local->ops->set_tid_config) 4723 return -EOPNOTSUPP; 4724 4725 if (!tid_conf->peer) 4726 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4727 4728 sta = sta_info_get_bss(sdata, tid_conf->peer); 4729 if (!sta) 4730 return -ENOENT; 4731 4732 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4733 } 4734 4735 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4736 struct net_device *dev, 4737 const u8 *peer, u8 tids) 4738 { 4739 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4740 struct sta_info *sta; 4741 4742 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4743 4744 if (!sdata->local->ops->reset_tid_config) 4745 return -EOPNOTSUPP; 4746 4747 if (!peer) 4748 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4749 4750 sta = sta_info_get_bss(sdata, peer); 4751 if (!sta) 4752 return -ENOENT; 4753 4754 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4755 } 4756 4757 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4758 struct cfg80211_sar_specs *sar) 4759 { 4760 struct ieee80211_local *local = wiphy_priv(wiphy); 4761 4762 if (!local->ops->set_sar_specs) 4763 return -EOPNOTSUPP; 4764 4765 return local->ops->set_sar_specs(&local->hw, sar); 4766 } 4767 4768 static int 4769 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4770 u64 *changed) 4771 { 4772 struct ieee80211_sub_if_data *sdata = link->sdata; 4773 4774 switch (sdata->vif.type) { 4775 case NL80211_IFTYPE_AP: { 4776 int ret; 4777 4778 if (!link->u.ap.next_beacon) 4779 return -EINVAL; 4780 4781 ret = ieee80211_assign_beacon(sdata, link, 4782 link->u.ap.next_beacon, 4783 NULL, NULL, changed); 4784 ieee80211_free_next_beacon(link); 4785 4786 if (ret < 0) 4787 return ret; 4788 4789 break; 4790 } 4791 default: 4792 WARN_ON_ONCE(1); 4793 return -EINVAL; 4794 } 4795 4796 return 0; 4797 } 4798 4799 static int 4800 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4801 struct cfg80211_color_change_settings *params, 4802 u64 *changed) 4803 { 4804 struct ieee80211_sub_if_data *sdata = link->sdata; 4805 struct ieee80211_color_change_settings color_change = {}; 4806 int err; 4807 4808 switch (sdata->vif.type) { 4809 case NL80211_IFTYPE_AP: 4810 link->u.ap.next_beacon = 4811 cfg80211_beacon_dup(¶ms->beacon_next); 4812 if (!link->u.ap.next_beacon) 4813 return -ENOMEM; 4814 4815 if (params->count <= 1) 4816 break; 4817 4818 color_change.counter_offset_beacon = 4819 params->counter_offset_beacon; 4820 color_change.counter_offset_presp = 4821 params->counter_offset_presp; 4822 color_change.count = params->count; 4823 4824 err = ieee80211_assign_beacon(sdata, link, 4825 ¶ms->beacon_color_change, 4826 NULL, &color_change, changed); 4827 if (err < 0) { 4828 ieee80211_free_next_beacon(link); 4829 return err; 4830 } 4831 break; 4832 default: 4833 return -EOPNOTSUPP; 4834 } 4835 4836 return 0; 4837 } 4838 4839 static void 4840 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4841 u8 color, int enable, u64 changed) 4842 { 4843 struct ieee80211_sub_if_data *sdata = link->sdata; 4844 4845 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4846 4847 link->conf->he_bss_color.color = color; 4848 link->conf->he_bss_color.enabled = enable; 4849 changed |= BSS_CHANGED_HE_BSS_COLOR; 4850 4851 ieee80211_link_info_change_notify(sdata, link, changed); 4852 4853 if (!link->conf->nontransmitted && 4854 rcu_access_pointer(link->conf->tx_bss_conf)) { 4855 struct ieee80211_link_data *tmp; 4856 4857 for_each_sdata_link(sdata->local, tmp) { 4858 if (tmp->sdata == sdata || 4859 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf) 4860 continue; 4861 4862 tmp->conf->he_bss_color.color = color; 4863 tmp->conf->he_bss_color.enabled = enable; 4864 ieee80211_link_info_change_notify(tmp->sdata, tmp, 4865 BSS_CHANGED_HE_BSS_COLOR); 4866 } 4867 } 4868 } 4869 4870 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4871 { 4872 struct ieee80211_sub_if_data *sdata = link->sdata; 4873 struct ieee80211_local *local = sdata->local; 4874 u64 changed = 0; 4875 int err; 4876 4877 lockdep_assert_wiphy(local->hw.wiphy); 4878 4879 link->conf->color_change_active = false; 4880 4881 err = ieee80211_set_after_color_change_beacon(link, &changed); 4882 if (err) { 4883 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4884 return err; 4885 } 4886 4887 ieee80211_color_change_bss_config_notify(link, 4888 link->conf->color_change_color, 4889 1, changed); 4890 cfg80211_color_change_notify(sdata->dev, link->link_id); 4891 4892 return 0; 4893 } 4894 4895 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4896 struct wiphy_work *work) 4897 { 4898 struct ieee80211_link_data *link = 4899 container_of(work, struct ieee80211_link_data, 4900 color_change_finalize_work); 4901 struct ieee80211_sub_if_data *sdata = link->sdata; 4902 struct ieee80211_bss_conf *link_conf = link->conf; 4903 struct ieee80211_local *local = sdata->local; 4904 4905 lockdep_assert_wiphy(local->hw.wiphy); 4906 4907 /* AP might have been stopped while waiting for the lock. */ 4908 if (!link_conf->color_change_active) 4909 return; 4910 4911 if (!ieee80211_sdata_running(sdata)) 4912 return; 4913 4914 ieee80211_color_change_finalize(link); 4915 } 4916 4917 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 4918 struct wiphy_work *work) 4919 { 4920 struct ieee80211_link_data *link = 4921 container_of(work, struct ieee80211_link_data, 4922 color_collision_detect_work.work); 4923 struct ieee80211_sub_if_data *sdata = link->sdata; 4924 4925 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 4926 link->link_id); 4927 } 4928 4929 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 4930 { 4931 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4932 struct ieee80211_link_data *link; 4933 4934 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4935 return; 4936 4937 rcu_read_lock(); 4938 4939 link = rcu_dereference(sdata->link[link_id]); 4940 if (WARN_ON(!link)) { 4941 rcu_read_unlock(); 4942 return; 4943 } 4944 4945 wiphy_work_queue(sdata->local->hw.wiphy, 4946 &link->color_change_finalize_work); 4947 4948 rcu_read_unlock(); 4949 } 4950 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4951 4952 void 4953 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4954 u64 color_bitmap, u8 link_id) 4955 { 4956 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4957 struct ieee80211_link_data *link; 4958 4959 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4960 return; 4961 4962 rcu_read_lock(); 4963 4964 link = rcu_dereference(sdata->link[link_id]); 4965 if (WARN_ON(!link)) { 4966 rcu_read_unlock(); 4967 return; 4968 } 4969 4970 if (link->conf->color_change_active || link->conf->csa_active) { 4971 rcu_read_unlock(); 4972 return; 4973 } 4974 4975 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 4976 &link->color_collision_detect_work)) { 4977 rcu_read_unlock(); 4978 return; 4979 } 4980 4981 link->color_bitmap = color_bitmap; 4982 /* queue the color collision detection event every 500 ms in order to 4983 * avoid sending too much netlink messages to userspace. 4984 */ 4985 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 4986 &link->color_collision_detect_work, 4987 msecs_to_jiffies(500)); 4988 4989 rcu_read_unlock(); 4990 } 4991 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4992 4993 static int 4994 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4995 struct cfg80211_color_change_settings *params) 4996 { 4997 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4998 struct ieee80211_local *local = sdata->local; 4999 struct ieee80211_bss_conf *link_conf; 5000 struct ieee80211_link_data *link; 5001 u8 link_id = params->link_id; 5002 u64 changed = 0; 5003 int err; 5004 5005 lockdep_assert_wiphy(local->hw.wiphy); 5006 5007 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5008 return -EINVAL; 5009 5010 link = wiphy_dereference(wiphy, sdata->link[link_id]); 5011 if (!link) 5012 return -ENOLINK; 5013 5014 link_conf = link->conf; 5015 5016 if (link_conf->nontransmitted) 5017 return -EINVAL; 5018 5019 /* don't allow another color change if one is already active or if csa 5020 * is active 5021 */ 5022 if (link_conf->color_change_active || link_conf->csa_active) { 5023 err = -EBUSY; 5024 goto out; 5025 } 5026 5027 err = ieee80211_set_color_change_beacon(link, params, &changed); 5028 if (err) 5029 goto out; 5030 5031 link_conf->color_change_active = true; 5032 link_conf->color_change_color = params->color; 5033 5034 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5035 5036 if (changed) 5037 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5038 else 5039 /* if the beacon didn't change, we can finalize immediately */ 5040 ieee80211_color_change_finalize(link); 5041 5042 out: 5043 5044 return err; 5045 } 5046 5047 static int 5048 ieee80211_set_radar_background(struct wiphy *wiphy, 5049 struct cfg80211_chan_def *chandef) 5050 { 5051 struct ieee80211_local *local = wiphy_priv(wiphy); 5052 5053 if (!local->ops->set_radar_background) 5054 return -EOPNOTSUPP; 5055 5056 return local->ops->set_radar_background(&local->hw, chandef); 5057 } 5058 5059 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5060 struct wireless_dev *wdev, 5061 unsigned int link_id) 5062 { 5063 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5064 5065 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5066 5067 if (wdev->use_4addr) 5068 return -EOPNOTSUPP; 5069 5070 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5071 } 5072 5073 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5074 struct wireless_dev *wdev, 5075 unsigned int link_id) 5076 { 5077 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5078 u16 new_links = wdev->valid_links & ~BIT(link_id); 5079 5080 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5081 5082 /* During the link teardown process, certain functions require the 5083 * link_id to remain in the valid_links bitmap. Therefore, instead 5084 * of removing the link_id from the bitmap, pass a masked value to 5085 * simulate as if link_id does not exist anymore. 5086 */ 5087 ieee80211_vif_set_links(sdata, new_links, 0); 5088 } 5089 5090 static int 5091 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5092 struct link_station_parameters *params) 5093 { 5094 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5095 struct ieee80211_local *local = wiphy_priv(wiphy); 5096 struct sta_info *sta; 5097 int ret; 5098 5099 lockdep_assert_wiphy(local->hw.wiphy); 5100 5101 sta = sta_info_get_bss(sdata, params->mld_mac); 5102 if (!sta) 5103 return -ENOENT; 5104 5105 if (!sta->sta.valid_links) 5106 return -EINVAL; 5107 5108 if (sta->sta.valid_links & BIT(params->link_id)) 5109 return -EALREADY; 5110 5111 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5112 if (ret) 5113 return ret; 5114 5115 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5116 if (ret) { 5117 ieee80211_sta_free_link(sta, params->link_id); 5118 return ret; 5119 } 5120 5121 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5122 struct link_sta_info *link_sta; 5123 5124 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5125 rate_control_rate_init(link_sta); 5126 } 5127 5128 /* ieee80211_sta_activate_link frees the link upon failure */ 5129 return ieee80211_sta_activate_link(sta, params->link_id); 5130 } 5131 5132 static int 5133 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5134 struct link_station_parameters *params) 5135 { 5136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5137 struct ieee80211_local *local = wiphy_priv(wiphy); 5138 struct sta_info *sta; 5139 5140 lockdep_assert_wiphy(local->hw.wiphy); 5141 5142 sta = sta_info_get_bss(sdata, params->mld_mac); 5143 if (!sta) 5144 return -ENOENT; 5145 5146 if (!(sta->sta.valid_links & BIT(params->link_id))) 5147 return -EINVAL; 5148 5149 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5150 params); 5151 } 5152 5153 static int 5154 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5155 struct link_station_del_parameters *params) 5156 { 5157 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5158 struct sta_info *sta; 5159 5160 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5161 5162 sta = sta_info_get_bss(sdata, params->mld_mac); 5163 if (!sta) 5164 return -ENOENT; 5165 5166 if (!(sta->sta.valid_links & BIT(params->link_id))) 5167 return -EINVAL; 5168 5169 /* must not create a STA without links */ 5170 if (sta->sta.valid_links == BIT(params->link_id)) 5171 return -EINVAL; 5172 5173 ieee80211_sta_remove_link(sta, params->link_id); 5174 5175 return 0; 5176 } 5177 5178 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5179 struct net_device *dev, 5180 struct cfg80211_set_hw_timestamp *hwts) 5181 { 5182 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5183 struct ieee80211_local *local = sdata->local; 5184 5185 if (!local->ops->set_hw_timestamp) 5186 return -EOPNOTSUPP; 5187 5188 if (!check_sdata_in_driver(sdata)) 5189 return -EIO; 5190 5191 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5192 } 5193 5194 static int 5195 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5196 struct cfg80211_ttlm_params *params) 5197 { 5198 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5199 5200 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5201 5202 return ieee80211_req_neg_ttlm(sdata, params); 5203 } 5204 5205 static int 5206 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5207 struct cfg80211_ml_reconf_req *req) 5208 { 5209 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5210 5211 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5212 5213 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5214 } 5215 5216 static int 5217 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5218 { 5219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5220 5221 return ieee80211_mgd_set_epcs(sdata, enable); 5222 } 5223 5224 const struct cfg80211_ops mac80211_config_ops = { 5225 .add_virtual_intf = ieee80211_add_iface, 5226 .del_virtual_intf = ieee80211_del_iface, 5227 .change_virtual_intf = ieee80211_change_iface, 5228 .start_p2p_device = ieee80211_start_p2p_device, 5229 .stop_p2p_device = ieee80211_stop_p2p_device, 5230 .add_key = ieee80211_add_key, 5231 .del_key = ieee80211_del_key, 5232 .get_key = ieee80211_get_key, 5233 .set_default_key = ieee80211_config_default_key, 5234 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5235 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5236 .start_ap = ieee80211_start_ap, 5237 .change_beacon = ieee80211_change_beacon, 5238 .stop_ap = ieee80211_stop_ap, 5239 .add_station = ieee80211_add_station, 5240 .del_station = ieee80211_del_station, 5241 .change_station = ieee80211_change_station, 5242 .get_station = ieee80211_get_station, 5243 .dump_station = ieee80211_dump_station, 5244 .dump_survey = ieee80211_dump_survey, 5245 #ifdef CONFIG_MAC80211_MESH 5246 .add_mpath = ieee80211_add_mpath, 5247 .del_mpath = ieee80211_del_mpath, 5248 .change_mpath = ieee80211_change_mpath, 5249 .get_mpath = ieee80211_get_mpath, 5250 .dump_mpath = ieee80211_dump_mpath, 5251 .get_mpp = ieee80211_get_mpp, 5252 .dump_mpp = ieee80211_dump_mpp, 5253 .update_mesh_config = ieee80211_update_mesh_config, 5254 .get_mesh_config = ieee80211_get_mesh_config, 5255 .join_mesh = ieee80211_join_mesh, 5256 .leave_mesh = ieee80211_leave_mesh, 5257 #endif 5258 .join_ocb = ieee80211_join_ocb, 5259 .leave_ocb = ieee80211_leave_ocb, 5260 .change_bss = ieee80211_change_bss, 5261 .inform_bss = ieee80211_inform_bss, 5262 .set_txq_params = ieee80211_set_txq_params, 5263 .set_monitor_channel = ieee80211_set_monitor_channel, 5264 .suspend = ieee80211_suspend, 5265 .resume = ieee80211_resume, 5266 .scan = ieee80211_scan, 5267 .abort_scan = ieee80211_abort_scan, 5268 .sched_scan_start = ieee80211_sched_scan_start, 5269 .sched_scan_stop = ieee80211_sched_scan_stop, 5270 .auth = ieee80211_auth, 5271 .assoc = ieee80211_assoc, 5272 .deauth = ieee80211_deauth, 5273 .disassoc = ieee80211_disassoc, 5274 .join_ibss = ieee80211_join_ibss, 5275 .leave_ibss = ieee80211_leave_ibss, 5276 .set_mcast_rate = ieee80211_set_mcast_rate, 5277 .set_wiphy_params = ieee80211_set_wiphy_params, 5278 .set_tx_power = ieee80211_set_tx_power, 5279 .get_tx_power = ieee80211_get_tx_power, 5280 .rfkill_poll = ieee80211_rfkill_poll, 5281 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5282 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5283 .set_power_mgmt = ieee80211_set_power_mgmt, 5284 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5285 .remain_on_channel = ieee80211_remain_on_channel, 5286 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5287 .mgmt_tx = ieee80211_mgmt_tx, 5288 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5289 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5290 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5291 .update_mgmt_frame_registrations = 5292 ieee80211_update_mgmt_frame_registrations, 5293 .set_antenna = ieee80211_set_antenna, 5294 .get_antenna = ieee80211_get_antenna, 5295 .set_rekey_data = ieee80211_set_rekey_data, 5296 .tdls_oper = ieee80211_tdls_oper, 5297 .tdls_mgmt = ieee80211_tdls_mgmt, 5298 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5299 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5300 .probe_client = ieee80211_probe_client, 5301 .set_noack_map = ieee80211_set_noack_map, 5302 #ifdef CONFIG_PM 5303 .set_wakeup = ieee80211_set_wakeup, 5304 #endif 5305 .get_channel = ieee80211_cfg_get_channel, 5306 .start_radar_detection = ieee80211_start_radar_detection, 5307 .end_cac = ieee80211_end_cac, 5308 .channel_switch = ieee80211_channel_switch, 5309 .set_qos_map = ieee80211_set_qos_map, 5310 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5311 .add_tx_ts = ieee80211_add_tx_ts, 5312 .del_tx_ts = ieee80211_del_tx_ts, 5313 .start_nan = ieee80211_start_nan, 5314 .stop_nan = ieee80211_stop_nan, 5315 .nan_change_conf = ieee80211_nan_change_conf, 5316 .add_nan_func = ieee80211_add_nan_func, 5317 .del_nan_func = ieee80211_del_nan_func, 5318 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5319 .tx_control_port = ieee80211_tx_control_port, 5320 .get_txq_stats = ieee80211_get_txq_stats, 5321 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5322 .start_pmsr = ieee80211_start_pmsr, 5323 .abort_pmsr = ieee80211_abort_pmsr, 5324 .probe_mesh_link = ieee80211_probe_mesh_link, 5325 .set_tid_config = ieee80211_set_tid_config, 5326 .reset_tid_config = ieee80211_reset_tid_config, 5327 .set_sar_specs = ieee80211_set_sar_specs, 5328 .color_change = ieee80211_color_change, 5329 .set_radar_background = ieee80211_set_radar_background, 5330 .add_intf_link = ieee80211_add_intf_link, 5331 .del_intf_link = ieee80211_del_intf_link, 5332 .add_link_station = ieee80211_add_link_station, 5333 .mod_link_station = ieee80211_mod_link_station, 5334 .del_link_station = ieee80211_del_link_station, 5335 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5336 .set_ttlm = ieee80211_set_ttlm, 5337 .get_radio_mask = ieee80211_get_radio_mask, 5338 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5339 .set_epcs = ieee80211_set_epcs, 5340 }; 5341