1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && 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_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 ret = ieee80211_if_change_type(sdata, type); 218 if (ret) 219 return ret; 220 221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 223 ieee80211_check_fast_rx_iface(sdata); 224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 226 227 if (params->use_4addr == ifmgd->use_4addr) 228 return 0; 229 230 /* FIXME: no support for 4-addr MLO yet */ 231 if (ieee80211_vif_is_mld(&sdata->vif)) 232 return -EOPNOTSUPP; 233 234 sdata->u.mgd.use_4addr = params->use_4addr; 235 if (!ifmgd->associated) 236 return 0; 237 238 mutex_lock(&local->sta_mtx); 239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 240 if (sta) 241 drv_sta_set_4addr(local, sdata, &sta->sta, 242 params->use_4addr); 243 mutex_unlock(&local->sta_mtx); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 mutex_lock(&sdata->local->chanctx_mtx); 265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 266 mutex_unlock(&sdata->local->chanctx_mtx); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 mutex_lock(&sdata->local->chanctx_mtx); 287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 288 mutex_unlock(&sdata->local->chanctx_mtx); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 mutex_lock(&local->key_mtx); 456 key = key_mtx_dereference(local, sta->ptk[key_idx]); 457 458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 459 ret = ieee80211_set_tx_key(key); 460 461 mutex_unlock(&local->key_mtx); 462 return ret; 463 } 464 465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 466 int link_id, u8 key_idx, bool pairwise, 467 const u8 *mac_addr, struct key_params *params) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_link_data *link = 471 ieee80211_link_or_deflink(sdata, link_id, false); 472 struct ieee80211_local *local = sdata->local; 473 struct sta_info *sta = NULL; 474 struct ieee80211_key *key; 475 int err; 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 mutex_lock(&local->sta_mtx); 514 515 if (mac_addr) { 516 sta = sta_info_get_bss(sdata, mac_addr); 517 /* 518 * The ASSOC test makes sure the driver is ready to 519 * receive the key. When wpa_supplicant has roamed 520 * using FT, it attempts to set the key before 521 * association has completed, this rejects that attempt 522 * so it will set the key again after association. 523 * 524 * TODO: accept the key if we have a station entry and 525 * add it to the device after the station. 526 */ 527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 528 ieee80211_key_free_unused(key); 529 err = -ENOENT; 530 goto out_unlock; 531 } 532 } 533 534 switch (sdata->vif.type) { 535 case NL80211_IFTYPE_STATION: 536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 538 break; 539 case NL80211_IFTYPE_AP: 540 case NL80211_IFTYPE_AP_VLAN: 541 /* Keys without a station are used for TX only */ 542 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 544 break; 545 case NL80211_IFTYPE_ADHOC: 546 /* no MFP (yet) */ 547 break; 548 case NL80211_IFTYPE_MESH_POINT: 549 #ifdef CONFIG_MAC80211_MESH 550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 552 break; 553 #endif 554 case NL80211_IFTYPE_WDS: 555 case NL80211_IFTYPE_MONITOR: 556 case NL80211_IFTYPE_P2P_DEVICE: 557 case NL80211_IFTYPE_NAN: 558 case NL80211_IFTYPE_UNSPECIFIED: 559 case NUM_NL80211_IFTYPES: 560 case NL80211_IFTYPE_P2P_CLIENT: 561 case NL80211_IFTYPE_P2P_GO: 562 case NL80211_IFTYPE_OCB: 563 /* shouldn't happen */ 564 WARN_ON_ONCE(1); 565 break; 566 } 567 568 err = ieee80211_key_link(key, link, sta); 569 /* KRACK protection, shouldn't happen but just silently accept key */ 570 if (err == -EALREADY) 571 err = 0; 572 573 out_unlock: 574 mutex_unlock(&local->sta_mtx); 575 576 return err; 577 } 578 579 static struct ieee80211_key * 580 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 581 u8 key_idx, bool pairwise, const u8 *mac_addr) 582 { 583 struct ieee80211_local *local __maybe_unused = sdata->local; 584 struct ieee80211_link_data *link = &sdata->deflink; 585 struct ieee80211_key *key; 586 587 if (link_id >= 0) { 588 link = rcu_dereference_check(sdata->link[link_id], 589 lockdep_is_held(&sdata->wdev.mtx)); 590 if (!link) 591 return NULL; 592 } 593 594 if (mac_addr) { 595 struct sta_info *sta; 596 struct link_sta_info *link_sta; 597 598 sta = sta_info_get_bss(sdata, mac_addr); 599 if (!sta) 600 return NULL; 601 602 if (link_id >= 0) { 603 link_sta = rcu_dereference_check(sta->link[link_id], 604 lockdep_is_held(&local->sta_mtx)); 605 if (!link_sta) 606 return NULL; 607 } else { 608 link_sta = &sta->deflink; 609 } 610 611 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 612 return rcu_dereference_check_key_mtx(local, 613 sta->ptk[key_idx]); 614 615 if (!pairwise && 616 key_idx < NUM_DEFAULT_KEYS + 617 NUM_DEFAULT_MGMT_KEYS + 618 NUM_DEFAULT_BEACON_KEYS) 619 return rcu_dereference_check_key_mtx(local, 620 link_sta->gtk[key_idx]); 621 622 return NULL; 623 } 624 625 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 626 return rcu_dereference_check_key_mtx(local, 627 sdata->keys[key_idx]); 628 629 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 630 if (key) 631 return key; 632 633 /* or maybe it was a WEP key */ 634 if (key_idx < NUM_DEFAULT_KEYS) 635 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 636 637 return NULL; 638 } 639 640 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 641 int link_id, u8 key_idx, bool pairwise, 642 const u8 *mac_addr) 643 { 644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 645 struct ieee80211_local *local = sdata->local; 646 struct ieee80211_key *key; 647 int ret; 648 649 mutex_lock(&local->sta_mtx); 650 mutex_lock(&local->key_mtx); 651 652 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 653 if (!key) { 654 ret = -ENOENT; 655 goto out_unlock; 656 } 657 658 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 659 660 ret = 0; 661 out_unlock: 662 mutex_unlock(&local->key_mtx); 663 mutex_unlock(&local->sta_mtx); 664 665 return ret; 666 } 667 668 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 669 int link_id, u8 key_idx, bool pairwise, 670 const u8 *mac_addr, void *cookie, 671 void (*callback)(void *cookie, 672 struct key_params *params)) 673 { 674 struct ieee80211_sub_if_data *sdata; 675 u8 seq[6] = {0}; 676 struct key_params params; 677 struct ieee80211_key *key; 678 u64 pn64; 679 u32 iv32; 680 u16 iv16; 681 int err = -ENOENT; 682 struct ieee80211_key_seq kseq = {}; 683 684 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 685 686 rcu_read_lock(); 687 688 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 689 if (!key) 690 goto out; 691 692 memset(¶ms, 0, sizeof(params)); 693 694 params.cipher = key->conf.cipher; 695 696 switch (key->conf.cipher) { 697 case WLAN_CIPHER_SUITE_TKIP: 698 pn64 = atomic64_read(&key->conf.tx_pn); 699 iv32 = TKIP_PN_TO_IV32(pn64); 700 iv16 = TKIP_PN_TO_IV16(pn64); 701 702 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 703 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 704 drv_get_key_seq(sdata->local, key, &kseq); 705 iv32 = kseq.tkip.iv32; 706 iv16 = kseq.tkip.iv16; 707 } 708 709 seq[0] = iv16 & 0xff; 710 seq[1] = (iv16 >> 8) & 0xff; 711 seq[2] = iv32 & 0xff; 712 seq[3] = (iv32 >> 8) & 0xff; 713 seq[4] = (iv32 >> 16) & 0xff; 714 seq[5] = (iv32 >> 24) & 0xff; 715 params.seq = seq; 716 params.seq_len = 6; 717 break; 718 case WLAN_CIPHER_SUITE_CCMP: 719 case WLAN_CIPHER_SUITE_CCMP_256: 720 case WLAN_CIPHER_SUITE_AES_CMAC: 721 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 722 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 723 offsetof(typeof(kseq), aes_cmac)); 724 fallthrough; 725 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 726 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 727 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 728 offsetof(typeof(kseq), aes_gmac)); 729 fallthrough; 730 case WLAN_CIPHER_SUITE_GCMP: 731 case WLAN_CIPHER_SUITE_GCMP_256: 732 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 733 offsetof(typeof(kseq), gcmp)); 734 735 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 736 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 737 drv_get_key_seq(sdata->local, key, &kseq); 738 memcpy(seq, kseq.ccmp.pn, 6); 739 } else { 740 pn64 = atomic64_read(&key->conf.tx_pn); 741 seq[0] = pn64; 742 seq[1] = pn64 >> 8; 743 seq[2] = pn64 >> 16; 744 seq[3] = pn64 >> 24; 745 seq[4] = pn64 >> 32; 746 seq[5] = pn64 >> 40; 747 } 748 params.seq = seq; 749 params.seq_len = 6; 750 break; 751 default: 752 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 753 break; 754 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 755 break; 756 drv_get_key_seq(sdata->local, key, &kseq); 757 params.seq = kseq.hw.seq; 758 params.seq_len = kseq.hw.seq_len; 759 break; 760 } 761 762 params.key = key->conf.key; 763 params.key_len = key->conf.keylen; 764 765 callback(cookie, ¶ms); 766 err = 0; 767 768 out: 769 rcu_read_unlock(); 770 return err; 771 } 772 773 static int ieee80211_config_default_key(struct wiphy *wiphy, 774 struct net_device *dev, 775 int link_id, u8 key_idx, bool uni, 776 bool multi) 777 { 778 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 779 struct ieee80211_link_data *link = 780 ieee80211_link_or_deflink(sdata, link_id, false); 781 782 if (IS_ERR(link)) 783 return PTR_ERR(link); 784 785 ieee80211_set_default_key(link, key_idx, uni, multi); 786 787 return 0; 788 } 789 790 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 791 struct net_device *dev, 792 int link_id, u8 key_idx) 793 { 794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 795 struct ieee80211_link_data *link = 796 ieee80211_link_or_deflink(sdata, link_id, true); 797 798 if (IS_ERR(link)) 799 return PTR_ERR(link); 800 801 ieee80211_set_default_mgmt_key(link, key_idx); 802 803 return 0; 804 } 805 806 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 807 struct net_device *dev, 808 int link_id, u8 key_idx) 809 { 810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 811 struct ieee80211_link_data *link = 812 ieee80211_link_or_deflink(sdata, link_id, true); 813 814 if (IS_ERR(link)) 815 return PTR_ERR(link); 816 817 ieee80211_set_default_beacon_key(link, key_idx); 818 819 return 0; 820 } 821 822 void sta_set_rate_info_tx(struct sta_info *sta, 823 const struct ieee80211_tx_rate *rate, 824 struct rate_info *rinfo) 825 { 826 rinfo->flags = 0; 827 if (rate->flags & IEEE80211_TX_RC_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_MCS; 829 rinfo->mcs = rate->idx; 830 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 831 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 832 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 833 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 834 } else { 835 struct ieee80211_supported_band *sband; 836 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 837 u16 brate; 838 839 sband = ieee80211_get_sband(sta->sdata); 840 WARN_ON_ONCE(sband && !sband->bitrates); 841 if (sband && sband->bitrates) { 842 brate = sband->bitrates[rate->idx].bitrate; 843 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 844 } 845 } 846 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 847 rinfo->bw = RATE_INFO_BW_40; 848 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 849 rinfo->bw = RATE_INFO_BW_80; 850 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 851 rinfo->bw = RATE_INFO_BW_160; 852 else 853 rinfo->bw = RATE_INFO_BW_20; 854 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 855 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 856 } 857 858 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 859 int idx, u8 *mac, struct station_info *sinfo) 860 { 861 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 862 struct ieee80211_local *local = sdata->local; 863 struct sta_info *sta; 864 int ret = -ENOENT; 865 866 mutex_lock(&local->sta_mtx); 867 868 sta = sta_info_get_by_idx(sdata, idx); 869 if (sta) { 870 ret = 0; 871 memcpy(mac, sta->sta.addr, ETH_ALEN); 872 sta_set_sinfo(sta, sinfo, true); 873 } 874 875 mutex_unlock(&local->sta_mtx); 876 877 return ret; 878 } 879 880 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 881 int idx, struct survey_info *survey) 882 { 883 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 884 885 return drv_get_survey(local, idx, survey); 886 } 887 888 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 889 const u8 *mac, struct station_info *sinfo) 890 { 891 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 892 struct ieee80211_local *local = sdata->local; 893 struct sta_info *sta; 894 int ret = -ENOENT; 895 896 mutex_lock(&local->sta_mtx); 897 898 sta = sta_info_get_bss(sdata, mac); 899 if (sta) { 900 ret = 0; 901 sta_set_sinfo(sta, sinfo, true); 902 } 903 904 mutex_unlock(&local->sta_mtx); 905 906 return ret; 907 } 908 909 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 910 struct cfg80211_chan_def *chandef) 911 { 912 struct ieee80211_local *local = wiphy_priv(wiphy); 913 struct ieee80211_sub_if_data *sdata; 914 int ret = 0; 915 916 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 917 return 0; 918 919 if (local->use_chanctx) { 920 sdata = wiphy_dereference(local->hw.wiphy, 921 local->monitor_sdata); 922 if (sdata) { 923 sdata_lock(sdata); 924 mutex_lock(&local->mtx); 925 ieee80211_link_release_channel(&sdata->deflink); 926 ret = ieee80211_link_use_channel(&sdata->deflink, 927 chandef, 928 IEEE80211_CHANCTX_EXCLUSIVE); 929 mutex_unlock(&local->mtx); 930 sdata_unlock(sdata); 931 } 932 } else { 933 mutex_lock(&local->mtx); 934 if (local->open_count == local->monitors) { 935 local->_oper_chandef = *chandef; 936 ieee80211_hw_config(local, 0); 937 } 938 mutex_unlock(&local->mtx); 939 } 940 941 if (ret == 0) 942 local->monitor_chandef = *chandef; 943 944 return ret; 945 } 946 947 static int 948 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 949 const u8 *resp, size_t resp_len, 950 const struct ieee80211_csa_settings *csa, 951 const struct ieee80211_color_change_settings *cca, 952 struct ieee80211_link_data *link) 953 { 954 struct probe_resp *new, *old; 955 956 if (!resp || !resp_len) 957 return 1; 958 959 old = sdata_dereference(link->u.ap.probe_resp, sdata); 960 961 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 962 if (!new) 963 return -ENOMEM; 964 965 new->len = resp_len; 966 memcpy(new->data, resp, resp_len); 967 968 if (csa) 969 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 970 csa->n_counter_offsets_presp * 971 sizeof(new->cntdwn_counter_offsets[0])); 972 else if (cca) 973 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 974 975 rcu_assign_pointer(link->u.ap.probe_resp, new); 976 if (old) 977 kfree_rcu(old, rcu_head); 978 979 return 0; 980 } 981 982 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 983 struct cfg80211_fils_discovery *params, 984 struct ieee80211_link_data *link, 985 struct ieee80211_bss_conf *link_conf) 986 { 987 struct fils_discovery_data *new, *old = NULL; 988 struct ieee80211_fils_discovery *fd; 989 990 if (!params->tmpl || !params->tmpl_len) 991 return -EINVAL; 992 993 fd = &link_conf->fils_discovery; 994 fd->min_interval = params->min_interval; 995 fd->max_interval = params->max_interval; 996 997 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 998 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 999 if (!new) 1000 return -ENOMEM; 1001 new->len = params->tmpl_len; 1002 memcpy(new->data, params->tmpl, params->tmpl_len); 1003 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1004 1005 if (old) 1006 kfree_rcu(old, rcu_head); 1007 1008 return 0; 1009 } 1010 1011 static int 1012 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1013 struct cfg80211_unsol_bcast_probe_resp *params, 1014 struct ieee80211_link_data *link, 1015 struct ieee80211_bss_conf *link_conf) 1016 { 1017 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1018 1019 if (!params->tmpl || !params->tmpl_len) 1020 return -EINVAL; 1021 1022 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1023 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1024 if (!new) 1025 return -ENOMEM; 1026 new->len = params->tmpl_len; 1027 memcpy(new->data, params->tmpl, params->tmpl_len); 1028 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1029 1030 if (old) 1031 kfree_rcu(old, rcu_head); 1032 1033 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1034 1035 return 0; 1036 } 1037 1038 static int ieee80211_set_ftm_responder_params( 1039 struct ieee80211_sub_if_data *sdata, 1040 const u8 *lci, size_t lci_len, 1041 const u8 *civicloc, size_t civicloc_len, 1042 struct ieee80211_bss_conf *link_conf) 1043 { 1044 struct ieee80211_ftm_responder_params *new, *old; 1045 u8 *pos; 1046 int len; 1047 1048 if (!lci_len && !civicloc_len) 1049 return 0; 1050 1051 old = link_conf->ftmr_params; 1052 len = lci_len + civicloc_len; 1053 1054 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1055 if (!new) 1056 return -ENOMEM; 1057 1058 pos = (u8 *)(new + 1); 1059 if (lci_len) { 1060 new->lci_len = lci_len; 1061 new->lci = pos; 1062 memcpy(pos, lci, lci_len); 1063 pos += lci_len; 1064 } 1065 1066 if (civicloc_len) { 1067 new->civicloc_len = civicloc_len; 1068 new->civicloc = pos; 1069 memcpy(pos, civicloc, civicloc_len); 1070 pos += civicloc_len; 1071 } 1072 1073 link_conf->ftmr_params = new; 1074 kfree(old); 1075 1076 return 0; 1077 } 1078 1079 static int 1080 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1081 struct cfg80211_mbssid_elems *src) 1082 { 1083 int i, offset = 0; 1084 1085 for (i = 0; i < src->cnt; i++) { 1086 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1087 dst->elem[i].len = src->elem[i].len; 1088 dst->elem[i].data = pos + offset; 1089 offset += dst->elem[i].len; 1090 } 1091 dst->cnt = src->cnt; 1092 1093 return offset; 1094 } 1095 1096 static int 1097 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1098 struct cfg80211_rnr_elems *src) 1099 { 1100 int i, offset = 0; 1101 1102 for (i = 0; i < src->cnt; i++) { 1103 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1104 dst->elem[i].len = src->elem[i].len; 1105 dst->elem[i].data = pos + offset; 1106 offset += dst->elem[i].len; 1107 } 1108 dst->cnt = src->cnt; 1109 1110 return offset; 1111 } 1112 1113 static int 1114 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1115 struct ieee80211_link_data *link, 1116 struct cfg80211_beacon_data *params, 1117 const struct ieee80211_csa_settings *csa, 1118 const struct ieee80211_color_change_settings *cca, 1119 u64 *changed) 1120 { 1121 struct cfg80211_mbssid_elems *mbssid = NULL; 1122 struct cfg80211_rnr_elems *rnr = NULL; 1123 struct beacon_data *new, *old; 1124 int new_head_len, new_tail_len; 1125 int size, err; 1126 u64 _changed = BSS_CHANGED_BEACON; 1127 struct ieee80211_bss_conf *link_conf = link->conf; 1128 1129 old = sdata_dereference(link->u.ap.beacon, sdata); 1130 1131 /* Need to have a beacon head if we don't have one yet */ 1132 if (!params->head && !old) 1133 return -EINVAL; 1134 1135 /* new or old head? */ 1136 if (params->head) 1137 new_head_len = params->head_len; 1138 else 1139 new_head_len = old->head_len; 1140 1141 /* new or old tail? */ 1142 if (params->tail || !old) 1143 /* params->tail_len will be zero for !params->tail */ 1144 new_tail_len = params->tail_len; 1145 else 1146 new_tail_len = old->tail_len; 1147 1148 size = sizeof(*new) + new_head_len + new_tail_len; 1149 1150 /* new or old multiple BSSID elements? */ 1151 if (params->mbssid_ies) { 1152 mbssid = params->mbssid_ies; 1153 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1154 if (params->rnr_ies) { 1155 rnr = params->rnr_ies; 1156 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1157 } 1158 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1159 mbssid->cnt); 1160 } else if (old && old->mbssid_ies) { 1161 mbssid = old->mbssid_ies; 1162 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1163 if (old && old->rnr_ies) { 1164 rnr = old->rnr_ies; 1165 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1166 } 1167 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1168 mbssid->cnt); 1169 } 1170 1171 new = kzalloc(size, GFP_KERNEL); 1172 if (!new) 1173 return -ENOMEM; 1174 1175 /* start filling the new info now */ 1176 1177 /* 1178 * pointers go into the block we allocated, 1179 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1180 */ 1181 new->head = ((u8 *) new) + sizeof(*new); 1182 new->tail = new->head + new_head_len; 1183 new->head_len = new_head_len; 1184 new->tail_len = new_tail_len; 1185 /* copy in optional mbssid_ies */ 1186 if (mbssid) { 1187 u8 *pos = new->tail + new->tail_len; 1188 1189 new->mbssid_ies = (void *)pos; 1190 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1191 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1192 mbssid); 1193 if (rnr) { 1194 new->rnr_ies = (void *)pos; 1195 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1196 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1197 } 1198 /* update bssid_indicator */ 1199 link_conf->bssid_indicator = 1200 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1201 } 1202 1203 if (csa) { 1204 new->cntdwn_current_counter = csa->count; 1205 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1206 csa->n_counter_offsets_beacon * 1207 sizeof(new->cntdwn_counter_offsets[0])); 1208 } else if (cca) { 1209 new->cntdwn_current_counter = cca->count; 1210 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1211 } 1212 1213 /* copy in head */ 1214 if (params->head) 1215 memcpy(new->head, params->head, new_head_len); 1216 else 1217 memcpy(new->head, old->head, new_head_len); 1218 1219 /* copy in optional tail */ 1220 if (params->tail) 1221 memcpy(new->tail, params->tail, new_tail_len); 1222 else 1223 if (old) 1224 memcpy(new->tail, old->tail, new_tail_len); 1225 1226 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1227 params->probe_resp_len, csa, cca, link); 1228 if (err < 0) { 1229 kfree(new); 1230 return err; 1231 } 1232 if (err == 0) 1233 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1234 1235 if (params->ftm_responder != -1) { 1236 link_conf->ftm_responder = params->ftm_responder; 1237 err = ieee80211_set_ftm_responder_params(sdata, 1238 params->lci, 1239 params->lci_len, 1240 params->civicloc, 1241 params->civicloc_len, 1242 link_conf); 1243 1244 if (err < 0) { 1245 kfree(new); 1246 return err; 1247 } 1248 1249 _changed |= BSS_CHANGED_FTM_RESPONDER; 1250 } 1251 1252 rcu_assign_pointer(link->u.ap.beacon, new); 1253 sdata->u.ap.active = true; 1254 1255 if (old) 1256 kfree_rcu(old, rcu_head); 1257 1258 *changed |= _changed; 1259 return 0; 1260 } 1261 1262 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1263 struct cfg80211_ap_settings *params) 1264 { 1265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1266 struct ieee80211_local *local = sdata->local; 1267 struct beacon_data *old; 1268 struct ieee80211_sub_if_data *vlan; 1269 u64 changed = BSS_CHANGED_BEACON_INT | 1270 BSS_CHANGED_BEACON_ENABLED | 1271 BSS_CHANGED_BEACON | 1272 BSS_CHANGED_P2P_PS | 1273 BSS_CHANGED_TXPOWER | 1274 BSS_CHANGED_TWT; 1275 int i, err; 1276 int prev_beacon_int; 1277 unsigned int link_id = params->beacon.link_id; 1278 struct ieee80211_link_data *link; 1279 struct ieee80211_bss_conf *link_conf; 1280 1281 link = sdata_dereference(sdata->link[link_id], sdata); 1282 if (!link) 1283 return -ENOLINK; 1284 1285 link_conf = link->conf; 1286 1287 old = sdata_dereference(link->u.ap.beacon, sdata); 1288 if (old) 1289 return -EALREADY; 1290 1291 if (params->smps_mode != NL80211_SMPS_OFF) 1292 return -ENOTSUPP; 1293 1294 link->smps_mode = IEEE80211_SMPS_OFF; 1295 1296 link->needed_rx_chains = sdata->local->rx_chains; 1297 1298 prev_beacon_int = link_conf->beacon_int; 1299 link_conf->beacon_int = params->beacon_interval; 1300 1301 if (params->ht_cap) 1302 link_conf->ht_ldpc = 1303 params->ht_cap->cap_info & 1304 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1305 1306 if (params->vht_cap) { 1307 link_conf->vht_ldpc = 1308 params->vht_cap->vht_cap_info & 1309 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1310 link_conf->vht_su_beamformer = 1311 params->vht_cap->vht_cap_info & 1312 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1313 link_conf->vht_su_beamformee = 1314 params->vht_cap->vht_cap_info & 1315 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1316 link_conf->vht_mu_beamformer = 1317 params->vht_cap->vht_cap_info & 1318 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1319 link_conf->vht_mu_beamformee = 1320 params->vht_cap->vht_cap_info & 1321 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1322 } 1323 1324 if (params->he_cap && params->he_oper) { 1325 link_conf->he_support = true; 1326 link_conf->htc_trig_based_pkt_ext = 1327 le32_get_bits(params->he_oper->he_oper_params, 1328 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1329 link_conf->frame_time_rts_th = 1330 le32_get_bits(params->he_oper->he_oper_params, 1331 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1332 changed |= BSS_CHANGED_HE_OBSS_PD; 1333 1334 if (params->beacon.he_bss_color.enabled) 1335 changed |= BSS_CHANGED_HE_BSS_COLOR; 1336 } 1337 1338 if (params->he_cap) { 1339 link_conf->he_ldpc = 1340 params->he_cap->phy_cap_info[1] & 1341 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1342 link_conf->he_su_beamformer = 1343 params->he_cap->phy_cap_info[3] & 1344 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1345 link_conf->he_su_beamformee = 1346 params->he_cap->phy_cap_info[4] & 1347 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1348 link_conf->he_mu_beamformer = 1349 params->he_cap->phy_cap_info[4] & 1350 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1351 link_conf->he_full_ul_mumimo = 1352 params->he_cap->phy_cap_info[2] & 1353 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1354 } 1355 1356 if (params->eht_cap) { 1357 if (!link_conf->he_support) 1358 return -EOPNOTSUPP; 1359 1360 link_conf->eht_support = true; 1361 link_conf->eht_puncturing = params->punct_bitmap; 1362 changed |= BSS_CHANGED_EHT_PUNCTURING; 1363 1364 link_conf->eht_su_beamformer = 1365 params->eht_cap->fixed.phy_cap_info[0] & 1366 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1367 link_conf->eht_su_beamformee = 1368 params->eht_cap->fixed.phy_cap_info[0] & 1369 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1370 link_conf->eht_mu_beamformer = 1371 params->eht_cap->fixed.phy_cap_info[7] & 1372 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1373 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1374 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1375 } else { 1376 link_conf->eht_su_beamformer = false; 1377 link_conf->eht_su_beamformee = false; 1378 link_conf->eht_mu_beamformer = false; 1379 } 1380 1381 if (sdata->vif.type == NL80211_IFTYPE_AP && 1382 params->mbssid_config.tx_wdev) { 1383 err = ieee80211_set_ap_mbssid_options(sdata, 1384 params->mbssid_config, 1385 link_conf); 1386 if (err) 1387 return err; 1388 } 1389 1390 mutex_lock(&local->mtx); 1391 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1392 IEEE80211_CHANCTX_SHARED); 1393 if (!err) 1394 ieee80211_link_copy_chanctx_to_vlans(link, false); 1395 mutex_unlock(&local->mtx); 1396 if (err) { 1397 link_conf->beacon_int = prev_beacon_int; 1398 return err; 1399 } 1400 1401 /* 1402 * Apply control port protocol, this allows us to 1403 * not encrypt dynamic WEP control frames. 1404 */ 1405 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1406 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1407 sdata->control_port_over_nl80211 = 1408 params->crypto.control_port_over_nl80211; 1409 sdata->control_port_no_preauth = 1410 params->crypto.control_port_no_preauth; 1411 1412 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1413 vlan->control_port_protocol = 1414 params->crypto.control_port_ethertype; 1415 vlan->control_port_no_encrypt = 1416 params->crypto.control_port_no_encrypt; 1417 vlan->control_port_over_nl80211 = 1418 params->crypto.control_port_over_nl80211; 1419 vlan->control_port_no_preauth = 1420 params->crypto.control_port_no_preauth; 1421 } 1422 1423 link_conf->dtim_period = params->dtim_period; 1424 link_conf->enable_beacon = true; 1425 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1426 link_conf->twt_responder = params->twt_responder; 1427 link_conf->he_obss_pd = params->he_obss_pd; 1428 link_conf->he_bss_color = params->beacon.he_bss_color; 1429 sdata->vif.cfg.s1g = params->chandef.chan->band == 1430 NL80211_BAND_S1GHZ; 1431 1432 sdata->vif.cfg.ssid_len = params->ssid_len; 1433 if (params->ssid_len) 1434 memcpy(sdata->vif.cfg.ssid, params->ssid, 1435 params->ssid_len); 1436 link_conf->hidden_ssid = 1437 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1438 1439 memset(&link_conf->p2p_noa_attr, 0, 1440 sizeof(link_conf->p2p_noa_attr)); 1441 link_conf->p2p_noa_attr.oppps_ctwindow = 1442 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1443 if (params->p2p_opp_ps) 1444 link_conf->p2p_noa_attr.oppps_ctwindow |= 1445 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1446 1447 sdata->beacon_rate_set = false; 1448 if (wiphy_ext_feature_isset(local->hw.wiphy, 1449 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1450 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1451 sdata->beacon_rateidx_mask[i] = 1452 params->beacon_rate.control[i].legacy; 1453 if (sdata->beacon_rateidx_mask[i]) 1454 sdata->beacon_rate_set = true; 1455 } 1456 } 1457 1458 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1459 link_conf->beacon_tx_rate = params->beacon_rate; 1460 1461 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1462 &changed); 1463 if (err < 0) 1464 goto error; 1465 1466 if (params->fils_discovery.max_interval) { 1467 err = ieee80211_set_fils_discovery(sdata, 1468 ¶ms->fils_discovery, 1469 link, link_conf); 1470 if (err < 0) 1471 goto error; 1472 changed |= BSS_CHANGED_FILS_DISCOVERY; 1473 } 1474 1475 if (params->unsol_bcast_probe_resp.interval) { 1476 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1477 ¶ms->unsol_bcast_probe_resp, 1478 link, link_conf); 1479 if (err < 0) 1480 goto error; 1481 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1482 } 1483 1484 err = drv_start_ap(sdata->local, sdata, link_conf); 1485 if (err) { 1486 old = sdata_dereference(link->u.ap.beacon, sdata); 1487 1488 if (old) 1489 kfree_rcu(old, rcu_head); 1490 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1491 sdata->u.ap.active = false; 1492 goto error; 1493 } 1494 1495 ieee80211_recalc_dtim(local, sdata); 1496 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1497 ieee80211_link_info_change_notify(sdata, link, changed); 1498 1499 netif_carrier_on(dev); 1500 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1501 netif_carrier_on(vlan->dev); 1502 1503 return 0; 1504 1505 error: 1506 mutex_lock(&local->mtx); 1507 ieee80211_link_release_channel(link); 1508 mutex_unlock(&local->mtx); 1509 1510 return err; 1511 } 1512 1513 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1514 struct cfg80211_beacon_data *params) 1515 { 1516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1517 struct ieee80211_link_data *link; 1518 struct beacon_data *old; 1519 int err; 1520 struct ieee80211_bss_conf *link_conf; 1521 u64 changed = 0; 1522 1523 sdata_assert_lock(sdata); 1524 1525 link = sdata_dereference(sdata->link[params->link_id], sdata); 1526 if (!link) 1527 return -ENOLINK; 1528 1529 link_conf = link->conf; 1530 1531 /* don't allow changing the beacon while a countdown is in place - offset 1532 * of channel switch counter may change 1533 */ 1534 if (link_conf->csa_active || link_conf->color_change_active) 1535 return -EBUSY; 1536 1537 old = sdata_dereference(link->u.ap.beacon, sdata); 1538 if (!old) 1539 return -ENOENT; 1540 1541 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL, 1542 &changed); 1543 if (err < 0) 1544 return err; 1545 1546 if (params->he_bss_color_valid && 1547 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1548 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1549 changed |= BSS_CHANGED_HE_BSS_COLOR; 1550 } 1551 1552 ieee80211_link_info_change_notify(sdata, link, changed); 1553 return 0; 1554 } 1555 1556 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1557 { 1558 if (!link->u.ap.next_beacon) 1559 return; 1560 1561 kfree(link->u.ap.next_beacon->mbssid_ies); 1562 kfree(link->u.ap.next_beacon->rnr_ies); 1563 kfree(link->u.ap.next_beacon); 1564 link->u.ap.next_beacon = NULL; 1565 } 1566 1567 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1568 unsigned int link_id) 1569 { 1570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1571 struct ieee80211_sub_if_data *vlan; 1572 struct ieee80211_local *local = sdata->local; 1573 struct beacon_data *old_beacon; 1574 struct probe_resp *old_probe_resp; 1575 struct fils_discovery_data *old_fils_discovery; 1576 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1577 struct cfg80211_chan_def chandef; 1578 struct ieee80211_link_data *link = 1579 sdata_dereference(sdata->link[link_id], sdata); 1580 struct ieee80211_bss_conf *link_conf = link->conf; 1581 1582 sdata_assert_lock(sdata); 1583 1584 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1585 if (!old_beacon) 1586 return -ENOENT; 1587 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1588 sdata); 1589 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1590 sdata); 1591 old_unsol_bcast_probe_resp = 1592 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1593 sdata); 1594 1595 /* abort any running channel switch or color change */ 1596 mutex_lock(&local->mtx); 1597 link_conf->csa_active = false; 1598 link_conf->color_change_active = false; 1599 if (link->csa_block_tx) { 1600 ieee80211_wake_vif_queues(local, sdata, 1601 IEEE80211_QUEUE_STOP_REASON_CSA); 1602 link->csa_block_tx = false; 1603 } 1604 1605 mutex_unlock(&local->mtx); 1606 1607 ieee80211_free_next_beacon(link); 1608 1609 /* turn off carrier for this interface and dependent VLANs */ 1610 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1611 netif_carrier_off(vlan->dev); 1612 netif_carrier_off(dev); 1613 1614 /* remove beacon and probe response */ 1615 sdata->u.ap.active = false; 1616 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1617 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1618 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1619 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1620 kfree_rcu(old_beacon, rcu_head); 1621 if (old_probe_resp) 1622 kfree_rcu(old_probe_resp, rcu_head); 1623 if (old_fils_discovery) 1624 kfree_rcu(old_fils_discovery, rcu_head); 1625 if (old_unsol_bcast_probe_resp) 1626 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1627 1628 kfree(link_conf->ftmr_params); 1629 link_conf->ftmr_params = NULL; 1630 1631 sdata->vif.mbssid_tx_vif = NULL; 1632 link_conf->bssid_index = 0; 1633 link_conf->nontransmitted = false; 1634 link_conf->ema_ap = false; 1635 link_conf->bssid_indicator = 0; 1636 1637 __sta_info_flush(sdata, true); 1638 ieee80211_free_keys(sdata, true); 1639 1640 link_conf->enable_beacon = false; 1641 sdata->beacon_rate_set = false; 1642 sdata->vif.cfg.ssid_len = 0; 1643 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1644 ieee80211_link_info_change_notify(sdata, link, 1645 BSS_CHANGED_BEACON_ENABLED); 1646 1647 if (sdata->wdev.cac_started) { 1648 chandef = link_conf->chandef; 1649 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1650 cfg80211_cac_event(sdata->dev, &chandef, 1651 NL80211_RADAR_CAC_ABORTED, 1652 GFP_KERNEL); 1653 } 1654 1655 drv_stop_ap(sdata->local, sdata, link_conf); 1656 1657 /* free all potentially still buffered bcast frames */ 1658 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1659 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1660 1661 mutex_lock(&local->mtx); 1662 ieee80211_link_copy_chanctx_to_vlans(link, true); 1663 ieee80211_link_release_channel(link); 1664 mutex_unlock(&local->mtx); 1665 1666 return 0; 1667 } 1668 1669 static int sta_apply_auth_flags(struct ieee80211_local *local, 1670 struct sta_info *sta, 1671 u32 mask, u32 set) 1672 { 1673 int ret; 1674 1675 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1676 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1677 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1678 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1679 if (ret) 1680 return ret; 1681 } 1682 1683 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1684 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1685 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1686 /* 1687 * When peer becomes associated, init rate control as 1688 * well. Some drivers require rate control initialized 1689 * before drv_sta_state() is called. 1690 */ 1691 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1692 rate_control_rate_init(sta); 1693 1694 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1695 if (ret) 1696 return ret; 1697 } 1698 1699 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1700 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1701 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1702 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1703 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1704 else 1705 ret = 0; 1706 if (ret) 1707 return ret; 1708 } 1709 1710 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1711 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1712 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1713 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1714 if (ret) 1715 return ret; 1716 } 1717 1718 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1719 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1720 test_sta_flag(sta, WLAN_STA_AUTH)) { 1721 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1722 if (ret) 1723 return ret; 1724 } 1725 1726 return 0; 1727 } 1728 1729 static void sta_apply_mesh_params(struct ieee80211_local *local, 1730 struct sta_info *sta, 1731 struct station_parameters *params) 1732 { 1733 #ifdef CONFIG_MAC80211_MESH 1734 struct ieee80211_sub_if_data *sdata = sta->sdata; 1735 u64 changed = 0; 1736 1737 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1738 switch (params->plink_state) { 1739 case NL80211_PLINK_ESTAB: 1740 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1741 changed = mesh_plink_inc_estab_count(sdata); 1742 sta->mesh->plink_state = params->plink_state; 1743 sta->mesh->aid = params->peer_aid; 1744 1745 ieee80211_mps_sta_status_update(sta); 1746 changed |= ieee80211_mps_set_sta_local_pm(sta, 1747 sdata->u.mesh.mshcfg.power_mode); 1748 1749 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1750 /* init at low value */ 1751 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1752 1753 break; 1754 case NL80211_PLINK_LISTEN: 1755 case NL80211_PLINK_BLOCKED: 1756 case NL80211_PLINK_OPN_SNT: 1757 case NL80211_PLINK_OPN_RCVD: 1758 case NL80211_PLINK_CNF_RCVD: 1759 case NL80211_PLINK_HOLDING: 1760 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1761 changed = mesh_plink_dec_estab_count(sdata); 1762 sta->mesh->plink_state = params->plink_state; 1763 1764 ieee80211_mps_sta_status_update(sta); 1765 changed |= ieee80211_mps_set_sta_local_pm(sta, 1766 NL80211_MESH_POWER_UNKNOWN); 1767 break; 1768 default: 1769 /* nothing */ 1770 break; 1771 } 1772 } 1773 1774 switch (params->plink_action) { 1775 case NL80211_PLINK_ACTION_NO_ACTION: 1776 /* nothing */ 1777 break; 1778 case NL80211_PLINK_ACTION_OPEN: 1779 changed |= mesh_plink_open(sta); 1780 break; 1781 case NL80211_PLINK_ACTION_BLOCK: 1782 changed |= mesh_plink_block(sta); 1783 break; 1784 } 1785 1786 if (params->local_pm) 1787 changed |= ieee80211_mps_set_sta_local_pm(sta, 1788 params->local_pm); 1789 1790 ieee80211_mbss_info_change_notify(sdata, changed); 1791 #endif 1792 } 1793 1794 static int sta_link_apply_parameters(struct ieee80211_local *local, 1795 struct sta_info *sta, bool new_link, 1796 struct link_station_parameters *params) 1797 { 1798 int ret = 0; 1799 struct ieee80211_supported_band *sband; 1800 struct ieee80211_sub_if_data *sdata = sta->sdata; 1801 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1802 struct ieee80211_link_data *link = 1803 sdata_dereference(sdata->link[link_id], sdata); 1804 struct link_sta_info *link_sta = 1805 rcu_dereference_protected(sta->link[link_id], 1806 lockdep_is_held(&local->sta_mtx)); 1807 1808 /* 1809 * If there are no changes, then accept a link that doesn't exist, 1810 * unless it's a new link. 1811 */ 1812 if (params->link_id < 0 && !new_link && 1813 !params->link_mac && !params->txpwr_set && 1814 !params->supported_rates_len && 1815 !params->ht_capa && !params->vht_capa && 1816 !params->he_capa && !params->eht_capa && 1817 !params->opmode_notif_used) 1818 return 0; 1819 1820 if (!link || !link_sta) 1821 return -EINVAL; 1822 1823 sband = ieee80211_get_link_sband(link); 1824 if (!sband) 1825 return -EINVAL; 1826 1827 if (params->link_mac) { 1828 if (new_link) { 1829 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1830 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1831 } else if (!ether_addr_equal(link_sta->addr, 1832 params->link_mac)) { 1833 return -EINVAL; 1834 } 1835 } else if (new_link) { 1836 return -EINVAL; 1837 } 1838 1839 if (params->txpwr_set) { 1840 link_sta->pub->txpwr.type = params->txpwr.type; 1841 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1842 link_sta->pub->txpwr.power = params->txpwr.power; 1843 ret = drv_sta_set_txpwr(local, sdata, sta); 1844 if (ret) 1845 return ret; 1846 } 1847 1848 if (params->supported_rates && 1849 params->supported_rates_len) { 1850 ieee80211_parse_bitrates(link->conf->chandef.width, 1851 sband, params->supported_rates, 1852 params->supported_rates_len, 1853 &link_sta->pub->supp_rates[sband->band]); 1854 } 1855 1856 if (params->ht_capa) 1857 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1858 params->ht_capa, link_sta); 1859 1860 /* VHT can override some HT caps such as the A-MSDU max length */ 1861 if (params->vht_capa) 1862 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1863 params->vht_capa, NULL, 1864 link_sta); 1865 1866 if (params->he_capa) 1867 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1868 (void *)params->he_capa, 1869 params->he_capa_len, 1870 (void *)params->he_6ghz_capa, 1871 link_sta); 1872 1873 if (params->he_capa && params->eht_capa) 1874 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1875 (u8 *)params->he_capa, 1876 params->he_capa_len, 1877 params->eht_capa, 1878 params->eht_capa_len, 1879 link_sta); 1880 1881 if (params->opmode_notif_used) { 1882 /* returned value is only needed for rc update, but the 1883 * rc isn't initialized here yet, so ignore it 1884 */ 1885 __ieee80211_vht_handle_opmode(sdata, link_sta, 1886 params->opmode_notif, 1887 sband->band); 1888 } 1889 1890 return ret; 1891 } 1892 1893 static int sta_apply_parameters(struct ieee80211_local *local, 1894 struct sta_info *sta, 1895 struct station_parameters *params) 1896 { 1897 struct ieee80211_sub_if_data *sdata = sta->sdata; 1898 u32 mask, set; 1899 int ret = 0; 1900 1901 mask = params->sta_flags_mask; 1902 set = params->sta_flags_set; 1903 1904 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1905 /* 1906 * In mesh mode, ASSOCIATED isn't part of the nl80211 1907 * API but must follow AUTHENTICATED for driver state. 1908 */ 1909 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1910 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1911 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1912 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1913 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1914 /* 1915 * TDLS -- everything follows authorized, but 1916 * only becoming authorized is possible, not 1917 * going back 1918 */ 1919 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1920 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1921 BIT(NL80211_STA_FLAG_ASSOCIATED); 1922 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1923 BIT(NL80211_STA_FLAG_ASSOCIATED); 1924 } 1925 } 1926 1927 if (mask & BIT(NL80211_STA_FLAG_WME) && 1928 local->hw.queues >= IEEE80211_NUM_ACS) 1929 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1930 1931 /* auth flags will be set later for TDLS, 1932 * and for unassociated stations that move to associated */ 1933 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1934 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1935 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1936 ret = sta_apply_auth_flags(local, sta, mask, set); 1937 if (ret) 1938 return ret; 1939 } 1940 1941 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1942 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1943 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1944 else 1945 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1946 } 1947 1948 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1949 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1950 if (set & BIT(NL80211_STA_FLAG_MFP)) 1951 set_sta_flag(sta, WLAN_STA_MFP); 1952 else 1953 clear_sta_flag(sta, WLAN_STA_MFP); 1954 } 1955 1956 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1957 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1958 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1959 else 1960 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1961 } 1962 1963 /* mark TDLS channel switch support, if the AP allows it */ 1964 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1965 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1966 params->ext_capab_len >= 4 && 1967 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1968 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1969 1970 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1971 !sdata->u.mgd.tdls_wider_bw_prohibited && 1972 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1973 params->ext_capab_len >= 8 && 1974 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1975 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1976 1977 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1978 sta->sta.uapsd_queues = params->uapsd_queues; 1979 sta->sta.max_sp = params->max_sp; 1980 } 1981 1982 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1983 params->ext_capab_len); 1984 1985 /* 1986 * cfg80211 validates this (1-2007) and allows setting the AID 1987 * only when creating a new station entry 1988 */ 1989 if (params->aid) 1990 sta->sta.aid = params->aid; 1991 1992 /* 1993 * Some of the following updates would be racy if called on an 1994 * existing station, via ieee80211_change_station(). However, 1995 * all such changes are rejected by cfg80211 except for updates 1996 * changing the supported rates on an existing but not yet used 1997 * TDLS peer. 1998 */ 1999 2000 if (params->listen_interval >= 0) 2001 sta->listen_interval = params->listen_interval; 2002 2003 ret = sta_link_apply_parameters(local, sta, false, 2004 ¶ms->link_sta_params); 2005 if (ret) 2006 return ret; 2007 2008 if (params->support_p2p_ps >= 0) 2009 sta->sta.support_p2p_ps = params->support_p2p_ps; 2010 2011 if (ieee80211_vif_is_mesh(&sdata->vif)) 2012 sta_apply_mesh_params(local, sta, params); 2013 2014 if (params->airtime_weight) 2015 sta->airtime_weight = params->airtime_weight; 2016 2017 /* set the STA state after all sta info from usermode has been set */ 2018 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2019 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2020 ret = sta_apply_auth_flags(local, sta, mask, set); 2021 if (ret) 2022 return ret; 2023 } 2024 2025 /* Mark the STA as MLO if MLD MAC address is available */ 2026 if (params->link_sta_params.mld_mac) 2027 sta->sta.mlo = true; 2028 2029 return 0; 2030 } 2031 2032 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2033 const u8 *mac, 2034 struct station_parameters *params) 2035 { 2036 struct ieee80211_local *local = wiphy_priv(wiphy); 2037 struct sta_info *sta; 2038 struct ieee80211_sub_if_data *sdata; 2039 int err; 2040 2041 if (params->vlan) { 2042 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2043 2044 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2045 sdata->vif.type != NL80211_IFTYPE_AP) 2046 return -EINVAL; 2047 } else 2048 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2049 2050 if (ether_addr_equal(mac, sdata->vif.addr)) 2051 return -EINVAL; 2052 2053 if (!is_valid_ether_addr(mac)) 2054 return -EINVAL; 2055 2056 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2057 sdata->vif.type == NL80211_IFTYPE_STATION && 2058 !sdata->u.mgd.associated) 2059 return -EINVAL; 2060 2061 /* 2062 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2063 * but we need to have a link_mac in that case as well, so use the 2064 * STA's MAC address in that case. 2065 */ 2066 if (params->link_sta_params.link_id >= 0) 2067 sta = sta_info_alloc_with_link(sdata, mac, 2068 params->link_sta_params.link_id, 2069 params->link_sta_params.link_mac ?: mac, 2070 GFP_KERNEL); 2071 else 2072 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2073 2074 if (!sta) 2075 return -ENOMEM; 2076 2077 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2078 sta->sta.tdls = true; 2079 2080 /* Though the mutex is not needed here (since the station is not 2081 * visible yet), sta_apply_parameters (and inner functions) require 2082 * the mutex due to other paths. 2083 */ 2084 mutex_lock(&local->sta_mtx); 2085 err = sta_apply_parameters(local, sta, params); 2086 mutex_unlock(&local->sta_mtx); 2087 if (err) { 2088 sta_info_free(local, sta); 2089 return err; 2090 } 2091 2092 /* 2093 * for TDLS and for unassociated station, rate control should be 2094 * initialized only when rates are known and station is marked 2095 * authorized/associated 2096 */ 2097 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2098 test_sta_flag(sta, WLAN_STA_ASSOC)) 2099 rate_control_rate_init(sta); 2100 2101 return sta_info_insert(sta); 2102 } 2103 2104 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2105 struct station_del_parameters *params) 2106 { 2107 struct ieee80211_sub_if_data *sdata; 2108 2109 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2110 2111 if (params->mac) 2112 return sta_info_destroy_addr_bss(sdata, params->mac); 2113 2114 sta_info_flush(sdata); 2115 return 0; 2116 } 2117 2118 static int ieee80211_change_station(struct wiphy *wiphy, 2119 struct net_device *dev, const u8 *mac, 2120 struct station_parameters *params) 2121 { 2122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2123 struct ieee80211_local *local = wiphy_priv(wiphy); 2124 struct sta_info *sta; 2125 struct ieee80211_sub_if_data *vlansdata; 2126 enum cfg80211_station_type statype; 2127 int err; 2128 2129 mutex_lock(&local->sta_mtx); 2130 2131 sta = sta_info_get_bss(sdata, mac); 2132 if (!sta) { 2133 err = -ENOENT; 2134 goto out_err; 2135 } 2136 2137 switch (sdata->vif.type) { 2138 case NL80211_IFTYPE_MESH_POINT: 2139 if (sdata->u.mesh.user_mpm) 2140 statype = CFG80211_STA_MESH_PEER_USER; 2141 else 2142 statype = CFG80211_STA_MESH_PEER_KERNEL; 2143 break; 2144 case NL80211_IFTYPE_ADHOC: 2145 statype = CFG80211_STA_IBSS; 2146 break; 2147 case NL80211_IFTYPE_STATION: 2148 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2149 statype = CFG80211_STA_AP_STA; 2150 break; 2151 } 2152 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2153 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2154 else 2155 statype = CFG80211_STA_TDLS_PEER_SETUP; 2156 break; 2157 case NL80211_IFTYPE_AP: 2158 case NL80211_IFTYPE_AP_VLAN: 2159 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2160 statype = CFG80211_STA_AP_CLIENT; 2161 else 2162 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2163 break; 2164 default: 2165 err = -EOPNOTSUPP; 2166 goto out_err; 2167 } 2168 2169 err = cfg80211_check_station_change(wiphy, params, statype); 2170 if (err) 2171 goto out_err; 2172 2173 if (params->vlan && params->vlan != sta->sdata->dev) { 2174 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2175 2176 if (params->vlan->ieee80211_ptr->use_4addr) { 2177 if (vlansdata->u.vlan.sta) { 2178 err = -EBUSY; 2179 goto out_err; 2180 } 2181 2182 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2183 __ieee80211_check_fast_rx_iface(vlansdata); 2184 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2185 } 2186 2187 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2188 sta->sdata->u.vlan.sta) { 2189 ieee80211_clear_fast_rx(sta); 2190 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2191 } 2192 2193 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2194 ieee80211_vif_dec_num_mcast(sta->sdata); 2195 2196 sta->sdata = vlansdata; 2197 ieee80211_check_fast_xmit(sta); 2198 2199 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2200 ieee80211_vif_inc_num_mcast(sta->sdata); 2201 cfg80211_send_layer2_update(sta->sdata->dev, 2202 sta->sta.addr); 2203 } 2204 } 2205 2206 /* we use sta_info_get_bss() so this might be different */ 2207 if (sdata != sta->sdata) { 2208 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2209 err = sta_apply_parameters(local, sta, params); 2210 mutex_unlock(&sta->sdata->wdev.mtx); 2211 } else { 2212 err = sta_apply_parameters(local, sta, params); 2213 } 2214 if (err) 2215 goto out_err; 2216 2217 mutex_unlock(&local->sta_mtx); 2218 2219 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2220 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2221 ieee80211_recalc_ps(local); 2222 ieee80211_recalc_ps_vif(sdata); 2223 } 2224 2225 return 0; 2226 out_err: 2227 mutex_unlock(&local->sta_mtx); 2228 return err; 2229 } 2230 2231 #ifdef CONFIG_MAC80211_MESH 2232 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2233 const u8 *dst, const u8 *next_hop) 2234 { 2235 struct ieee80211_sub_if_data *sdata; 2236 struct mesh_path *mpath; 2237 struct sta_info *sta; 2238 2239 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2240 2241 rcu_read_lock(); 2242 sta = sta_info_get(sdata, next_hop); 2243 if (!sta) { 2244 rcu_read_unlock(); 2245 return -ENOENT; 2246 } 2247 2248 mpath = mesh_path_add(sdata, dst); 2249 if (IS_ERR(mpath)) { 2250 rcu_read_unlock(); 2251 return PTR_ERR(mpath); 2252 } 2253 2254 mesh_path_fix_nexthop(mpath, sta); 2255 2256 rcu_read_unlock(); 2257 return 0; 2258 } 2259 2260 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2261 const u8 *dst) 2262 { 2263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2264 2265 if (dst) 2266 return mesh_path_del(sdata, dst); 2267 2268 mesh_path_flush_by_iface(sdata); 2269 return 0; 2270 } 2271 2272 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2273 const u8 *dst, const u8 *next_hop) 2274 { 2275 struct ieee80211_sub_if_data *sdata; 2276 struct mesh_path *mpath; 2277 struct sta_info *sta; 2278 2279 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2280 2281 rcu_read_lock(); 2282 2283 sta = sta_info_get(sdata, next_hop); 2284 if (!sta) { 2285 rcu_read_unlock(); 2286 return -ENOENT; 2287 } 2288 2289 mpath = mesh_path_lookup(sdata, dst); 2290 if (!mpath) { 2291 rcu_read_unlock(); 2292 return -ENOENT; 2293 } 2294 2295 mesh_path_fix_nexthop(mpath, sta); 2296 2297 rcu_read_unlock(); 2298 return 0; 2299 } 2300 2301 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2302 struct mpath_info *pinfo) 2303 { 2304 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2305 2306 if (next_hop_sta) 2307 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2308 else 2309 eth_zero_addr(next_hop); 2310 2311 memset(pinfo, 0, sizeof(*pinfo)); 2312 2313 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2314 2315 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2316 MPATH_INFO_SN | 2317 MPATH_INFO_METRIC | 2318 MPATH_INFO_EXPTIME | 2319 MPATH_INFO_DISCOVERY_TIMEOUT | 2320 MPATH_INFO_DISCOVERY_RETRIES | 2321 MPATH_INFO_FLAGS | 2322 MPATH_INFO_HOP_COUNT | 2323 MPATH_INFO_PATH_CHANGE; 2324 2325 pinfo->frame_qlen = mpath->frame_queue.qlen; 2326 pinfo->sn = mpath->sn; 2327 pinfo->metric = mpath->metric; 2328 if (time_before(jiffies, mpath->exp_time)) 2329 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2330 pinfo->discovery_timeout = 2331 jiffies_to_msecs(mpath->discovery_timeout); 2332 pinfo->discovery_retries = mpath->discovery_retries; 2333 if (mpath->flags & MESH_PATH_ACTIVE) 2334 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2335 if (mpath->flags & MESH_PATH_RESOLVING) 2336 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2337 if (mpath->flags & MESH_PATH_SN_VALID) 2338 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2339 if (mpath->flags & MESH_PATH_FIXED) 2340 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2341 if (mpath->flags & MESH_PATH_RESOLVED) 2342 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2343 pinfo->hop_count = mpath->hop_count; 2344 pinfo->path_change_count = mpath->path_change_count; 2345 } 2346 2347 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2348 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2349 2350 { 2351 struct ieee80211_sub_if_data *sdata; 2352 struct mesh_path *mpath; 2353 2354 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2355 2356 rcu_read_lock(); 2357 mpath = mesh_path_lookup(sdata, dst); 2358 if (!mpath) { 2359 rcu_read_unlock(); 2360 return -ENOENT; 2361 } 2362 memcpy(dst, mpath->dst, ETH_ALEN); 2363 mpath_set_pinfo(mpath, next_hop, pinfo); 2364 rcu_read_unlock(); 2365 return 0; 2366 } 2367 2368 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2369 int idx, u8 *dst, u8 *next_hop, 2370 struct mpath_info *pinfo) 2371 { 2372 struct ieee80211_sub_if_data *sdata; 2373 struct mesh_path *mpath; 2374 2375 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2376 2377 rcu_read_lock(); 2378 mpath = mesh_path_lookup_by_idx(sdata, idx); 2379 if (!mpath) { 2380 rcu_read_unlock(); 2381 return -ENOENT; 2382 } 2383 memcpy(dst, mpath->dst, ETH_ALEN); 2384 mpath_set_pinfo(mpath, next_hop, pinfo); 2385 rcu_read_unlock(); 2386 return 0; 2387 } 2388 2389 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2390 struct mpath_info *pinfo) 2391 { 2392 memset(pinfo, 0, sizeof(*pinfo)); 2393 memcpy(mpp, mpath->mpp, ETH_ALEN); 2394 2395 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2396 } 2397 2398 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2399 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2400 2401 { 2402 struct ieee80211_sub_if_data *sdata; 2403 struct mesh_path *mpath; 2404 2405 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2406 2407 rcu_read_lock(); 2408 mpath = mpp_path_lookup(sdata, dst); 2409 if (!mpath) { 2410 rcu_read_unlock(); 2411 return -ENOENT; 2412 } 2413 memcpy(dst, mpath->dst, ETH_ALEN); 2414 mpp_set_pinfo(mpath, mpp, pinfo); 2415 rcu_read_unlock(); 2416 return 0; 2417 } 2418 2419 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2420 int idx, u8 *dst, u8 *mpp, 2421 struct mpath_info *pinfo) 2422 { 2423 struct ieee80211_sub_if_data *sdata; 2424 struct mesh_path *mpath; 2425 2426 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2427 2428 rcu_read_lock(); 2429 mpath = mpp_path_lookup_by_idx(sdata, idx); 2430 if (!mpath) { 2431 rcu_read_unlock(); 2432 return -ENOENT; 2433 } 2434 memcpy(dst, mpath->dst, ETH_ALEN); 2435 mpp_set_pinfo(mpath, mpp, pinfo); 2436 rcu_read_unlock(); 2437 return 0; 2438 } 2439 2440 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2441 struct net_device *dev, 2442 struct mesh_config *conf) 2443 { 2444 struct ieee80211_sub_if_data *sdata; 2445 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2446 2447 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2448 return 0; 2449 } 2450 2451 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2452 { 2453 return (mask >> (parm-1)) & 0x1; 2454 } 2455 2456 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2457 const struct mesh_setup *setup) 2458 { 2459 u8 *new_ie; 2460 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2461 struct ieee80211_sub_if_data, u.mesh); 2462 int i; 2463 2464 /* allocate information elements */ 2465 new_ie = NULL; 2466 2467 if (setup->ie_len) { 2468 new_ie = kmemdup(setup->ie, setup->ie_len, 2469 GFP_KERNEL); 2470 if (!new_ie) 2471 return -ENOMEM; 2472 } 2473 ifmsh->ie_len = setup->ie_len; 2474 ifmsh->ie = new_ie; 2475 2476 /* now copy the rest of the setup parameters */ 2477 ifmsh->mesh_id_len = setup->mesh_id_len; 2478 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2479 ifmsh->mesh_sp_id = setup->sync_method; 2480 ifmsh->mesh_pp_id = setup->path_sel_proto; 2481 ifmsh->mesh_pm_id = setup->path_metric; 2482 ifmsh->user_mpm = setup->user_mpm; 2483 ifmsh->mesh_auth_id = setup->auth_id; 2484 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2485 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2486 if (setup->is_authenticated) 2487 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2488 if (setup->is_secure) 2489 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2490 2491 /* mcast rate setting in Mesh Node */ 2492 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2493 sizeof(setup->mcast_rate)); 2494 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2495 2496 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2497 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2498 2499 sdata->beacon_rate_set = false; 2500 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2501 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2502 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2503 sdata->beacon_rateidx_mask[i] = 2504 setup->beacon_rate.control[i].legacy; 2505 if (sdata->beacon_rateidx_mask[i]) 2506 sdata->beacon_rate_set = true; 2507 } 2508 } 2509 2510 return 0; 2511 } 2512 2513 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2514 struct net_device *dev, u32 mask, 2515 const struct mesh_config *nconf) 2516 { 2517 struct mesh_config *conf; 2518 struct ieee80211_sub_if_data *sdata; 2519 struct ieee80211_if_mesh *ifmsh; 2520 2521 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2522 ifmsh = &sdata->u.mesh; 2523 2524 /* Set the config options which we are interested in setting */ 2525 conf = &(sdata->u.mesh.mshcfg); 2526 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2527 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2528 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2529 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2530 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2531 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2533 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2534 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2535 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2536 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2537 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2538 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2539 conf->element_ttl = nconf->element_ttl; 2540 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2541 if (ifmsh->user_mpm) 2542 return -EBUSY; 2543 conf->auto_open_plinks = nconf->auto_open_plinks; 2544 } 2545 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2546 conf->dot11MeshNbrOffsetMaxNeighbor = 2547 nconf->dot11MeshNbrOffsetMaxNeighbor; 2548 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2549 conf->dot11MeshHWMPmaxPREQretries = 2550 nconf->dot11MeshHWMPmaxPREQretries; 2551 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2552 conf->path_refresh_time = nconf->path_refresh_time; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2554 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2555 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2556 conf->dot11MeshHWMPactivePathTimeout = 2557 nconf->dot11MeshHWMPactivePathTimeout; 2558 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2559 conf->dot11MeshHWMPpreqMinInterval = 2560 nconf->dot11MeshHWMPpreqMinInterval; 2561 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2562 conf->dot11MeshHWMPperrMinInterval = 2563 nconf->dot11MeshHWMPperrMinInterval; 2564 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2565 mask)) 2566 conf->dot11MeshHWMPnetDiameterTraversalTime = 2567 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2569 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2570 ieee80211_mesh_root_setup(ifmsh); 2571 } 2572 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2573 /* our current gate announcement implementation rides on root 2574 * announcements, so require this ifmsh to also be a root node 2575 * */ 2576 if (nconf->dot11MeshGateAnnouncementProtocol && 2577 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2578 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2579 ieee80211_mesh_root_setup(ifmsh); 2580 } 2581 conf->dot11MeshGateAnnouncementProtocol = 2582 nconf->dot11MeshGateAnnouncementProtocol; 2583 } 2584 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2585 conf->dot11MeshHWMPRannInterval = 2586 nconf->dot11MeshHWMPRannInterval; 2587 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2588 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2590 /* our RSSI threshold implementation is supported only for 2591 * devices that report signal in dBm. 2592 */ 2593 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2594 return -ENOTSUPP; 2595 conf->rssi_threshold = nconf->rssi_threshold; 2596 } 2597 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2598 conf->ht_opmode = nconf->ht_opmode; 2599 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2600 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2601 BSS_CHANGED_HT); 2602 } 2603 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2604 conf->dot11MeshHWMPactivePathToRootTimeout = 2605 nconf->dot11MeshHWMPactivePathToRootTimeout; 2606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2607 conf->dot11MeshHWMProotInterval = 2608 nconf->dot11MeshHWMProotInterval; 2609 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2610 conf->dot11MeshHWMPconfirmationInterval = 2611 nconf->dot11MeshHWMPconfirmationInterval; 2612 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2613 conf->power_mode = nconf->power_mode; 2614 ieee80211_mps_local_status_update(sdata); 2615 } 2616 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2617 conf->dot11MeshAwakeWindowDuration = 2618 nconf->dot11MeshAwakeWindowDuration; 2619 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2620 conf->plink_timeout = nconf->plink_timeout; 2621 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2622 conf->dot11MeshConnectedToMeshGate = 2623 nconf->dot11MeshConnectedToMeshGate; 2624 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2625 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2627 conf->dot11MeshConnectedToAuthServer = 2628 nconf->dot11MeshConnectedToAuthServer; 2629 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2630 return 0; 2631 } 2632 2633 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2634 const struct mesh_config *conf, 2635 const struct mesh_setup *setup) 2636 { 2637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2638 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2639 int err; 2640 2641 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2642 err = copy_mesh_setup(ifmsh, setup); 2643 if (err) 2644 return err; 2645 2646 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2647 2648 /* can mesh use other SMPS modes? */ 2649 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2650 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2651 2652 mutex_lock(&sdata->local->mtx); 2653 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2654 IEEE80211_CHANCTX_SHARED); 2655 mutex_unlock(&sdata->local->mtx); 2656 if (err) 2657 return err; 2658 2659 return ieee80211_start_mesh(sdata); 2660 } 2661 2662 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2663 { 2664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2665 2666 ieee80211_stop_mesh(sdata); 2667 mutex_lock(&sdata->local->mtx); 2668 ieee80211_link_release_channel(&sdata->deflink); 2669 kfree(sdata->u.mesh.ie); 2670 mutex_unlock(&sdata->local->mtx); 2671 2672 return 0; 2673 } 2674 #endif 2675 2676 static int ieee80211_change_bss(struct wiphy *wiphy, 2677 struct net_device *dev, 2678 struct bss_parameters *params) 2679 { 2680 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2681 struct ieee80211_link_data *link; 2682 struct ieee80211_supported_band *sband; 2683 u64 changed = 0; 2684 2685 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2686 if (IS_ERR(link)) 2687 return PTR_ERR(link); 2688 2689 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2690 return -ENOENT; 2691 2692 sband = ieee80211_get_link_sband(link); 2693 if (!sband) 2694 return -EINVAL; 2695 2696 if (params->basic_rates) { 2697 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2698 wiphy->bands[sband->band], 2699 params->basic_rates, 2700 params->basic_rates_len, 2701 &link->conf->basic_rates)) 2702 return -EINVAL; 2703 changed |= BSS_CHANGED_BASIC_RATES; 2704 ieee80211_check_rate_mask(link); 2705 } 2706 2707 if (params->use_cts_prot >= 0) { 2708 link->conf->use_cts_prot = params->use_cts_prot; 2709 changed |= BSS_CHANGED_ERP_CTS_PROT; 2710 } 2711 if (params->use_short_preamble >= 0) { 2712 link->conf->use_short_preamble = params->use_short_preamble; 2713 changed |= BSS_CHANGED_ERP_PREAMBLE; 2714 } 2715 2716 if (!link->conf->use_short_slot && 2717 (sband->band == NL80211_BAND_5GHZ || 2718 sband->band == NL80211_BAND_6GHZ)) { 2719 link->conf->use_short_slot = true; 2720 changed |= BSS_CHANGED_ERP_SLOT; 2721 } 2722 2723 if (params->use_short_slot_time >= 0) { 2724 link->conf->use_short_slot = params->use_short_slot_time; 2725 changed |= BSS_CHANGED_ERP_SLOT; 2726 } 2727 2728 if (params->ap_isolate >= 0) { 2729 if (params->ap_isolate) 2730 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2731 else 2732 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2733 ieee80211_check_fast_rx_iface(sdata); 2734 } 2735 2736 if (params->ht_opmode >= 0) { 2737 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2738 changed |= BSS_CHANGED_HT; 2739 } 2740 2741 if (params->p2p_ctwindow >= 0) { 2742 link->conf->p2p_noa_attr.oppps_ctwindow &= 2743 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2744 link->conf->p2p_noa_attr.oppps_ctwindow |= 2745 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2746 changed |= BSS_CHANGED_P2P_PS; 2747 } 2748 2749 if (params->p2p_opp_ps > 0) { 2750 link->conf->p2p_noa_attr.oppps_ctwindow |= 2751 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2752 changed |= BSS_CHANGED_P2P_PS; 2753 } else if (params->p2p_opp_ps == 0) { 2754 link->conf->p2p_noa_attr.oppps_ctwindow &= 2755 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2756 changed |= BSS_CHANGED_P2P_PS; 2757 } 2758 2759 ieee80211_link_info_change_notify(sdata, link, changed); 2760 2761 return 0; 2762 } 2763 2764 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2765 struct net_device *dev, 2766 struct ieee80211_txq_params *params) 2767 { 2768 struct ieee80211_local *local = wiphy_priv(wiphy); 2769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2770 struct ieee80211_link_data *link = 2771 ieee80211_link_or_deflink(sdata, params->link_id, true); 2772 struct ieee80211_tx_queue_params p; 2773 2774 if (!local->ops->conf_tx) 2775 return -EOPNOTSUPP; 2776 2777 if (local->hw.queues < IEEE80211_NUM_ACS) 2778 return -EOPNOTSUPP; 2779 2780 if (IS_ERR(link)) 2781 return PTR_ERR(link); 2782 2783 memset(&p, 0, sizeof(p)); 2784 p.aifs = params->aifs; 2785 p.cw_max = params->cwmax; 2786 p.cw_min = params->cwmin; 2787 p.txop = params->txop; 2788 2789 /* 2790 * Setting tx queue params disables u-apsd because it's only 2791 * called in master mode. 2792 */ 2793 p.uapsd = false; 2794 2795 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2796 2797 link->tx_conf[params->ac] = p; 2798 if (drv_conf_tx(local, link, params->ac, &p)) { 2799 wiphy_debug(local->hw.wiphy, 2800 "failed to set TX queue parameters for AC %d\n", 2801 params->ac); 2802 return -EINVAL; 2803 } 2804 2805 ieee80211_link_info_change_notify(sdata, link, 2806 BSS_CHANGED_QOS); 2807 2808 return 0; 2809 } 2810 2811 #ifdef CONFIG_PM 2812 static int ieee80211_suspend(struct wiphy *wiphy, 2813 struct cfg80211_wowlan *wowlan) 2814 { 2815 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2816 } 2817 2818 static int ieee80211_resume(struct wiphy *wiphy) 2819 { 2820 return __ieee80211_resume(wiphy_priv(wiphy)); 2821 } 2822 #else 2823 #define ieee80211_suspend NULL 2824 #define ieee80211_resume NULL 2825 #endif 2826 2827 static int ieee80211_scan(struct wiphy *wiphy, 2828 struct cfg80211_scan_request *req) 2829 { 2830 struct ieee80211_sub_if_data *sdata; 2831 2832 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2833 2834 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2835 case NL80211_IFTYPE_STATION: 2836 case NL80211_IFTYPE_ADHOC: 2837 case NL80211_IFTYPE_MESH_POINT: 2838 case NL80211_IFTYPE_P2P_CLIENT: 2839 case NL80211_IFTYPE_P2P_DEVICE: 2840 break; 2841 case NL80211_IFTYPE_P2P_GO: 2842 if (sdata->local->ops->hw_scan) 2843 break; 2844 /* 2845 * FIXME: implement NoA while scanning in software, 2846 * for now fall through to allow scanning only when 2847 * beaconing hasn't been configured yet 2848 */ 2849 fallthrough; 2850 case NL80211_IFTYPE_AP: 2851 /* 2852 * If the scan has been forced (and the driver supports 2853 * forcing), don't care about being beaconing already. 2854 * This will create problems to the attached stations (e.g. all 2855 * the frames sent while scanning on other channel will be 2856 * lost) 2857 */ 2858 if (sdata->deflink.u.ap.beacon && 2859 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2860 !(req->flags & NL80211_SCAN_FLAG_AP))) 2861 return -EOPNOTSUPP; 2862 break; 2863 case NL80211_IFTYPE_NAN: 2864 default: 2865 return -EOPNOTSUPP; 2866 } 2867 2868 return ieee80211_request_scan(sdata, req); 2869 } 2870 2871 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2872 { 2873 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2874 } 2875 2876 static int 2877 ieee80211_sched_scan_start(struct wiphy *wiphy, 2878 struct net_device *dev, 2879 struct cfg80211_sched_scan_request *req) 2880 { 2881 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2882 2883 if (!sdata->local->ops->sched_scan_start) 2884 return -EOPNOTSUPP; 2885 2886 return ieee80211_request_sched_scan_start(sdata, req); 2887 } 2888 2889 static int 2890 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2891 u64 reqid) 2892 { 2893 struct ieee80211_local *local = wiphy_priv(wiphy); 2894 2895 if (!local->ops->sched_scan_stop) 2896 return -EOPNOTSUPP; 2897 2898 return ieee80211_request_sched_scan_stop(local); 2899 } 2900 2901 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2902 struct cfg80211_auth_request *req) 2903 { 2904 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2905 } 2906 2907 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2908 struct cfg80211_assoc_request *req) 2909 { 2910 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2911 } 2912 2913 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2914 struct cfg80211_deauth_request *req) 2915 { 2916 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2917 } 2918 2919 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2920 struct cfg80211_disassoc_request *req) 2921 { 2922 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2923 } 2924 2925 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2926 struct cfg80211_ibss_params *params) 2927 { 2928 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2929 } 2930 2931 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2932 { 2933 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2934 } 2935 2936 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2937 struct ocb_setup *setup) 2938 { 2939 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2940 } 2941 2942 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2943 { 2944 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2945 } 2946 2947 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2948 int rate[NUM_NL80211_BANDS]) 2949 { 2950 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2951 2952 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2953 sizeof(int) * NUM_NL80211_BANDS); 2954 2955 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2956 BSS_CHANGED_MCAST_RATE); 2957 2958 return 0; 2959 } 2960 2961 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2962 { 2963 struct ieee80211_local *local = wiphy_priv(wiphy); 2964 int err; 2965 2966 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2967 ieee80211_check_fast_xmit_all(local); 2968 2969 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2970 2971 if (err) { 2972 ieee80211_check_fast_xmit_all(local); 2973 return err; 2974 } 2975 } 2976 2977 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2978 (changed & WIPHY_PARAM_DYN_ACK)) { 2979 s16 coverage_class; 2980 2981 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2982 wiphy->coverage_class : -1; 2983 err = drv_set_coverage_class(local, coverage_class); 2984 2985 if (err) 2986 return err; 2987 } 2988 2989 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2990 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2991 2992 if (err) 2993 return err; 2994 } 2995 2996 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2997 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2998 return -EINVAL; 2999 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3000 } 3001 if (changed & WIPHY_PARAM_RETRY_LONG) { 3002 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3003 return -EINVAL; 3004 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3005 } 3006 if (changed & 3007 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3008 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3009 3010 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3011 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3012 WIPHY_PARAM_TXQ_QUANTUM)) 3013 ieee80211_txq_set_params(local); 3014 3015 return 0; 3016 } 3017 3018 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3019 struct wireless_dev *wdev, 3020 enum nl80211_tx_power_setting type, int mbm) 3021 { 3022 struct ieee80211_local *local = wiphy_priv(wiphy); 3023 struct ieee80211_sub_if_data *sdata; 3024 enum nl80211_tx_power_setting txp_type = type; 3025 bool update_txp_type = false; 3026 bool has_monitor = false; 3027 3028 if (wdev) { 3029 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3030 3031 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3032 sdata = wiphy_dereference(local->hw.wiphy, 3033 local->monitor_sdata); 3034 if (!sdata) 3035 return -EOPNOTSUPP; 3036 } 3037 3038 switch (type) { 3039 case NL80211_TX_POWER_AUTOMATIC: 3040 sdata->deflink.user_power_level = 3041 IEEE80211_UNSET_POWER_LEVEL; 3042 txp_type = NL80211_TX_POWER_LIMITED; 3043 break; 3044 case NL80211_TX_POWER_LIMITED: 3045 case NL80211_TX_POWER_FIXED: 3046 if (mbm < 0 || (mbm % 100)) 3047 return -EOPNOTSUPP; 3048 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3049 break; 3050 } 3051 3052 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3053 update_txp_type = true; 3054 sdata->vif.bss_conf.txpower_type = txp_type; 3055 } 3056 3057 ieee80211_recalc_txpower(sdata, update_txp_type); 3058 3059 return 0; 3060 } 3061 3062 switch (type) { 3063 case NL80211_TX_POWER_AUTOMATIC: 3064 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3065 txp_type = NL80211_TX_POWER_LIMITED; 3066 break; 3067 case NL80211_TX_POWER_LIMITED: 3068 case NL80211_TX_POWER_FIXED: 3069 if (mbm < 0 || (mbm % 100)) 3070 return -EOPNOTSUPP; 3071 local->user_power_level = MBM_TO_DBM(mbm); 3072 break; 3073 } 3074 3075 mutex_lock(&local->iflist_mtx); 3076 list_for_each_entry(sdata, &local->interfaces, list) { 3077 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3078 has_monitor = true; 3079 continue; 3080 } 3081 sdata->deflink.user_power_level = local->user_power_level; 3082 if (txp_type != sdata->vif.bss_conf.txpower_type) 3083 update_txp_type = true; 3084 sdata->vif.bss_conf.txpower_type = txp_type; 3085 } 3086 list_for_each_entry(sdata, &local->interfaces, list) { 3087 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3088 continue; 3089 ieee80211_recalc_txpower(sdata, update_txp_type); 3090 } 3091 mutex_unlock(&local->iflist_mtx); 3092 3093 if (has_monitor) { 3094 sdata = wiphy_dereference(local->hw.wiphy, 3095 local->monitor_sdata); 3096 if (sdata) { 3097 sdata->deflink.user_power_level = local->user_power_level; 3098 if (txp_type != sdata->vif.bss_conf.txpower_type) 3099 update_txp_type = true; 3100 sdata->vif.bss_conf.txpower_type = txp_type; 3101 3102 ieee80211_recalc_txpower(sdata, update_txp_type); 3103 } 3104 } 3105 3106 return 0; 3107 } 3108 3109 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3110 struct wireless_dev *wdev, 3111 int *dbm) 3112 { 3113 struct ieee80211_local *local = wiphy_priv(wiphy); 3114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3115 3116 if (local->ops->get_txpower) 3117 return drv_get_txpower(local, sdata, dbm); 3118 3119 if (!local->use_chanctx) 3120 *dbm = local->hw.conf.power_level; 3121 else 3122 *dbm = sdata->vif.bss_conf.txpower; 3123 3124 return 0; 3125 } 3126 3127 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3128 { 3129 struct ieee80211_local *local = wiphy_priv(wiphy); 3130 3131 drv_rfkill_poll(local); 3132 } 3133 3134 #ifdef CONFIG_NL80211_TESTMODE 3135 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3136 struct wireless_dev *wdev, 3137 void *data, int len) 3138 { 3139 struct ieee80211_local *local = wiphy_priv(wiphy); 3140 struct ieee80211_vif *vif = NULL; 3141 3142 if (!local->ops->testmode_cmd) 3143 return -EOPNOTSUPP; 3144 3145 if (wdev) { 3146 struct ieee80211_sub_if_data *sdata; 3147 3148 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3149 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3150 vif = &sdata->vif; 3151 } 3152 3153 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3154 } 3155 3156 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3157 struct sk_buff *skb, 3158 struct netlink_callback *cb, 3159 void *data, int len) 3160 { 3161 struct ieee80211_local *local = wiphy_priv(wiphy); 3162 3163 if (!local->ops->testmode_dump) 3164 return -EOPNOTSUPP; 3165 3166 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3167 } 3168 #endif 3169 3170 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3171 struct ieee80211_link_data *link, 3172 enum ieee80211_smps_mode smps_mode) 3173 { 3174 const u8 *ap; 3175 enum ieee80211_smps_mode old_req; 3176 int err; 3177 struct sta_info *sta; 3178 bool tdls_peer_found = false; 3179 3180 lockdep_assert_held(&sdata->wdev.mtx); 3181 3182 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3183 return -EINVAL; 3184 3185 old_req = link->u.mgd.req_smps; 3186 link->u.mgd.req_smps = smps_mode; 3187 3188 if (old_req == smps_mode && 3189 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3190 return 0; 3191 3192 /* 3193 * If not associated, or current association is not an HT 3194 * association, there's no need to do anything, just store 3195 * the new value until we associate. 3196 */ 3197 if (!sdata->u.mgd.associated || 3198 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3199 return 0; 3200 3201 ap = link->u.mgd.bssid; 3202 3203 rcu_read_lock(); 3204 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3205 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3206 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3207 continue; 3208 3209 tdls_peer_found = true; 3210 break; 3211 } 3212 rcu_read_unlock(); 3213 3214 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3215 if (tdls_peer_found || !sdata->u.mgd.powersave) 3216 smps_mode = IEEE80211_SMPS_OFF; 3217 else 3218 smps_mode = IEEE80211_SMPS_DYNAMIC; 3219 } 3220 3221 /* send SM PS frame to AP */ 3222 err = ieee80211_send_smps_action(sdata, smps_mode, 3223 ap, ap); 3224 if (err) 3225 link->u.mgd.req_smps = old_req; 3226 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3227 ieee80211_teardown_tdls_peers(sdata); 3228 3229 return err; 3230 } 3231 3232 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3233 bool enabled, int timeout) 3234 { 3235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3236 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3237 unsigned int link_id; 3238 3239 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3240 return -EOPNOTSUPP; 3241 3242 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3243 return -EOPNOTSUPP; 3244 3245 if (enabled == sdata->u.mgd.powersave && 3246 timeout == local->dynamic_ps_forced_timeout) 3247 return 0; 3248 3249 sdata->u.mgd.powersave = enabled; 3250 local->dynamic_ps_forced_timeout = timeout; 3251 3252 /* no change, but if automatic follow powersave */ 3253 sdata_lock(sdata); 3254 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3255 struct ieee80211_link_data *link; 3256 3257 link = sdata_dereference(sdata->link[link_id], sdata); 3258 3259 if (!link) 3260 continue; 3261 __ieee80211_request_smps_mgd(sdata, link, 3262 link->u.mgd.req_smps); 3263 } 3264 sdata_unlock(sdata); 3265 3266 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3267 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3268 3269 ieee80211_recalc_ps(local); 3270 ieee80211_recalc_ps_vif(sdata); 3271 ieee80211_check_fast_rx_iface(sdata); 3272 3273 return 0; 3274 } 3275 3276 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3277 struct net_device *dev, 3278 s32 rssi_thold, u32 rssi_hyst) 3279 { 3280 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3281 struct ieee80211_vif *vif = &sdata->vif; 3282 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3283 3284 if (rssi_thold == bss_conf->cqm_rssi_thold && 3285 rssi_hyst == bss_conf->cqm_rssi_hyst) 3286 return 0; 3287 3288 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3289 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3290 return -EOPNOTSUPP; 3291 3292 bss_conf->cqm_rssi_thold = rssi_thold; 3293 bss_conf->cqm_rssi_hyst = rssi_hyst; 3294 bss_conf->cqm_rssi_low = 0; 3295 bss_conf->cqm_rssi_high = 0; 3296 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3297 3298 /* tell the driver upon association, unless already associated */ 3299 if (sdata->u.mgd.associated && 3300 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3301 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3302 BSS_CHANGED_CQM); 3303 3304 return 0; 3305 } 3306 3307 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3308 struct net_device *dev, 3309 s32 rssi_low, s32 rssi_high) 3310 { 3311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3312 struct ieee80211_vif *vif = &sdata->vif; 3313 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3314 3315 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3316 return -EOPNOTSUPP; 3317 3318 bss_conf->cqm_rssi_low = rssi_low; 3319 bss_conf->cqm_rssi_high = rssi_high; 3320 bss_conf->cqm_rssi_thold = 0; 3321 bss_conf->cqm_rssi_hyst = 0; 3322 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3323 3324 /* tell the driver upon association, unless already associated */ 3325 if (sdata->u.mgd.associated && 3326 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3327 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3328 BSS_CHANGED_CQM); 3329 3330 return 0; 3331 } 3332 3333 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3334 struct net_device *dev, 3335 unsigned int link_id, 3336 const u8 *addr, 3337 const struct cfg80211_bitrate_mask *mask) 3338 { 3339 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3340 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3341 int i, ret; 3342 3343 if (!ieee80211_sdata_running(sdata)) 3344 return -ENETDOWN; 3345 3346 /* 3347 * If active validate the setting and reject it if it doesn't leave 3348 * at least one basic rate usable, since we really have to be able 3349 * to send something, and if we're an AP we have to be able to do 3350 * so at a basic rate so that all clients can receive it. 3351 */ 3352 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3353 sdata->vif.bss_conf.chandef.chan) { 3354 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3355 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3356 3357 if (!(mask->control[band].legacy & basic_rates)) 3358 return -EINVAL; 3359 } 3360 3361 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3362 ret = drv_set_bitrate_mask(local, sdata, mask); 3363 if (ret) 3364 return ret; 3365 } 3366 3367 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3368 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3369 int j; 3370 3371 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3372 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3373 sizeof(mask->control[i].ht_mcs)); 3374 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3375 mask->control[i].vht_mcs, 3376 sizeof(mask->control[i].vht_mcs)); 3377 3378 sdata->rc_has_mcs_mask[i] = false; 3379 sdata->rc_has_vht_mcs_mask[i] = false; 3380 if (!sband) 3381 continue; 3382 3383 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3384 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3385 sdata->rc_has_mcs_mask[i] = true; 3386 break; 3387 } 3388 } 3389 3390 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3391 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3392 sdata->rc_has_vht_mcs_mask[i] = true; 3393 break; 3394 } 3395 } 3396 } 3397 3398 return 0; 3399 } 3400 3401 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3402 struct net_device *dev, 3403 struct cfg80211_chan_def *chandef, 3404 u32 cac_time_ms) 3405 { 3406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3407 struct ieee80211_local *local = sdata->local; 3408 int err; 3409 3410 mutex_lock(&local->mtx); 3411 if (!list_empty(&local->roc_list) || local->scanning) { 3412 err = -EBUSY; 3413 goto out_unlock; 3414 } 3415 3416 /* whatever, but channel contexts should not complain about that one */ 3417 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3418 sdata->deflink.needed_rx_chains = local->rx_chains; 3419 3420 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3421 IEEE80211_CHANCTX_SHARED); 3422 if (err) 3423 goto out_unlock; 3424 3425 ieee80211_queue_delayed_work(&sdata->local->hw, 3426 &sdata->deflink.dfs_cac_timer_work, 3427 msecs_to_jiffies(cac_time_ms)); 3428 3429 out_unlock: 3430 mutex_unlock(&local->mtx); 3431 return err; 3432 } 3433 3434 static void ieee80211_end_cac(struct wiphy *wiphy, 3435 struct net_device *dev) 3436 { 3437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3438 struct ieee80211_local *local = sdata->local; 3439 3440 mutex_lock(&local->mtx); 3441 list_for_each_entry(sdata, &local->interfaces, list) { 3442 /* it might be waiting for the local->mtx, but then 3443 * by the time it gets it, sdata->wdev.cac_started 3444 * will no longer be true 3445 */ 3446 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3447 3448 if (sdata->wdev.cac_started) { 3449 ieee80211_link_release_channel(&sdata->deflink); 3450 sdata->wdev.cac_started = false; 3451 } 3452 } 3453 mutex_unlock(&local->mtx); 3454 } 3455 3456 static struct cfg80211_beacon_data * 3457 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3458 { 3459 struct cfg80211_beacon_data *new_beacon; 3460 u8 *pos; 3461 int len; 3462 3463 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3464 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3465 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3466 3467 if (beacon->mbssid_ies) 3468 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3469 beacon->rnr_ies, 3470 beacon->mbssid_ies->cnt); 3471 3472 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3473 if (!new_beacon) 3474 return NULL; 3475 3476 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3477 new_beacon->mbssid_ies = 3478 kzalloc(struct_size(new_beacon->mbssid_ies, 3479 elem, beacon->mbssid_ies->cnt), 3480 GFP_KERNEL); 3481 if (!new_beacon->mbssid_ies) { 3482 kfree(new_beacon); 3483 return NULL; 3484 } 3485 3486 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3487 new_beacon->rnr_ies = 3488 kzalloc(struct_size(new_beacon->rnr_ies, 3489 elem, beacon->rnr_ies->cnt), 3490 GFP_KERNEL); 3491 if (!new_beacon->rnr_ies) { 3492 kfree(new_beacon->mbssid_ies); 3493 kfree(new_beacon); 3494 return NULL; 3495 } 3496 } 3497 } 3498 3499 pos = (u8 *)(new_beacon + 1); 3500 if (beacon->head_len) { 3501 new_beacon->head_len = beacon->head_len; 3502 new_beacon->head = pos; 3503 memcpy(pos, beacon->head, beacon->head_len); 3504 pos += beacon->head_len; 3505 } 3506 if (beacon->tail_len) { 3507 new_beacon->tail_len = beacon->tail_len; 3508 new_beacon->tail = pos; 3509 memcpy(pos, beacon->tail, beacon->tail_len); 3510 pos += beacon->tail_len; 3511 } 3512 if (beacon->beacon_ies_len) { 3513 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3514 new_beacon->beacon_ies = pos; 3515 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3516 pos += beacon->beacon_ies_len; 3517 } 3518 if (beacon->proberesp_ies_len) { 3519 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3520 new_beacon->proberesp_ies = pos; 3521 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3522 pos += beacon->proberesp_ies_len; 3523 } 3524 if (beacon->assocresp_ies_len) { 3525 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3526 new_beacon->assocresp_ies = pos; 3527 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3528 pos += beacon->assocresp_ies_len; 3529 } 3530 if (beacon->probe_resp_len) { 3531 new_beacon->probe_resp_len = beacon->probe_resp_len; 3532 new_beacon->probe_resp = pos; 3533 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3534 pos += beacon->probe_resp_len; 3535 } 3536 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3537 pos += ieee80211_copy_mbssid_beacon(pos, 3538 new_beacon->mbssid_ies, 3539 beacon->mbssid_ies); 3540 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3541 pos += ieee80211_copy_rnr_beacon(pos, 3542 new_beacon->rnr_ies, 3543 beacon->rnr_ies); 3544 } 3545 3546 /* might copy -1, meaning no changes requested */ 3547 new_beacon->ftm_responder = beacon->ftm_responder; 3548 if (beacon->lci) { 3549 new_beacon->lci_len = beacon->lci_len; 3550 new_beacon->lci = pos; 3551 memcpy(pos, beacon->lci, beacon->lci_len); 3552 pos += beacon->lci_len; 3553 } 3554 if (beacon->civicloc) { 3555 new_beacon->civicloc_len = beacon->civicloc_len; 3556 new_beacon->civicloc = pos; 3557 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3558 pos += beacon->civicloc_len; 3559 } 3560 3561 return new_beacon; 3562 } 3563 3564 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3565 { 3566 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3567 struct ieee80211_local *local = sdata->local; 3568 3569 rcu_read_lock(); 3570 3571 if (vif->mbssid_tx_vif == vif) { 3572 /* Trigger ieee80211_csa_finish() on the non-transmitting 3573 * interfaces when channel switch is received on 3574 * transmitting interface 3575 */ 3576 struct ieee80211_sub_if_data *iter; 3577 3578 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3579 if (!ieee80211_sdata_running(iter)) 3580 continue; 3581 3582 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3583 continue; 3584 3585 ieee80211_queue_work(&iter->local->hw, 3586 &iter->deflink.csa_finalize_work); 3587 } 3588 } 3589 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3590 3591 rcu_read_unlock(); 3592 } 3593 EXPORT_SYMBOL(ieee80211_csa_finish); 3594 3595 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3596 { 3597 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3598 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3599 struct ieee80211_local *local = sdata->local; 3600 3601 sdata->deflink.csa_block_tx = block_tx; 3602 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3603 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3604 } 3605 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3606 3607 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3608 u64 *changed) 3609 { 3610 int err; 3611 3612 switch (sdata->vif.type) { 3613 case NL80211_IFTYPE_AP: 3614 if (!sdata->deflink.u.ap.next_beacon) 3615 return -EINVAL; 3616 3617 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3618 sdata->deflink.u.ap.next_beacon, 3619 NULL, NULL, changed); 3620 ieee80211_free_next_beacon(&sdata->deflink); 3621 3622 if (err < 0) 3623 return err; 3624 break; 3625 case NL80211_IFTYPE_ADHOC: 3626 err = ieee80211_ibss_finish_csa(sdata, changed); 3627 if (err < 0) 3628 return err; 3629 break; 3630 #ifdef CONFIG_MAC80211_MESH 3631 case NL80211_IFTYPE_MESH_POINT: 3632 err = ieee80211_mesh_finish_csa(sdata, changed); 3633 if (err < 0) 3634 return err; 3635 break; 3636 #endif 3637 default: 3638 WARN_ON(1); 3639 return -EINVAL; 3640 } 3641 3642 return 0; 3643 } 3644 3645 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3646 { 3647 struct ieee80211_local *local = sdata->local; 3648 u64 changed = 0; 3649 int err; 3650 3651 sdata_assert_lock(sdata); 3652 lockdep_assert_held(&local->mtx); 3653 lockdep_assert_held(&local->chanctx_mtx); 3654 3655 /* 3656 * using reservation isn't immediate as it may be deferred until later 3657 * with multi-vif. once reservation is complete it will re-schedule the 3658 * work with no reserved_chanctx so verify chandef to check if it 3659 * completed successfully 3660 */ 3661 3662 if (sdata->deflink.reserved_chanctx) { 3663 /* 3664 * with multi-vif csa driver may call ieee80211_csa_finish() 3665 * many times while waiting for other interfaces to use their 3666 * reservations 3667 */ 3668 if (sdata->deflink.reserved_ready) 3669 return 0; 3670 3671 return ieee80211_link_use_reserved_context(&sdata->deflink); 3672 } 3673 3674 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3675 &sdata->deflink.csa_chandef)) 3676 return -EINVAL; 3677 3678 sdata->vif.bss_conf.csa_active = false; 3679 3680 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3681 if (err) 3682 return err; 3683 3684 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3685 sdata->vif.bss_conf.eht_puncturing = 3686 sdata->vif.bss_conf.csa_punct_bitmap; 3687 changed |= BSS_CHANGED_EHT_PUNCTURING; 3688 } 3689 3690 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3691 3692 if (sdata->deflink.csa_block_tx) { 3693 ieee80211_wake_vif_queues(local, sdata, 3694 IEEE80211_QUEUE_STOP_REASON_CSA); 3695 sdata->deflink.csa_block_tx = false; 3696 } 3697 3698 err = drv_post_channel_switch(sdata); 3699 if (err) 3700 return err; 3701 3702 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3703 sdata->vif.bss_conf.eht_puncturing); 3704 3705 return 0; 3706 } 3707 3708 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3709 { 3710 if (__ieee80211_csa_finalize(sdata)) { 3711 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3712 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3713 GFP_KERNEL); 3714 } 3715 } 3716 3717 void ieee80211_csa_finalize_work(struct work_struct *work) 3718 { 3719 struct ieee80211_sub_if_data *sdata = 3720 container_of(work, struct ieee80211_sub_if_data, 3721 deflink.csa_finalize_work); 3722 struct ieee80211_local *local = sdata->local; 3723 3724 sdata_lock(sdata); 3725 mutex_lock(&local->mtx); 3726 mutex_lock(&local->chanctx_mtx); 3727 3728 /* AP might have been stopped while waiting for the lock. */ 3729 if (!sdata->vif.bss_conf.csa_active) 3730 goto unlock; 3731 3732 if (!ieee80211_sdata_running(sdata)) 3733 goto unlock; 3734 3735 ieee80211_csa_finalize(sdata); 3736 3737 unlock: 3738 mutex_unlock(&local->chanctx_mtx); 3739 mutex_unlock(&local->mtx); 3740 sdata_unlock(sdata); 3741 } 3742 3743 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3744 struct cfg80211_csa_settings *params, 3745 u64 *changed) 3746 { 3747 struct ieee80211_csa_settings csa = {}; 3748 int err; 3749 3750 switch (sdata->vif.type) { 3751 case NL80211_IFTYPE_AP: 3752 sdata->deflink.u.ap.next_beacon = 3753 cfg80211_beacon_dup(¶ms->beacon_after); 3754 if (!sdata->deflink.u.ap.next_beacon) 3755 return -ENOMEM; 3756 3757 /* 3758 * With a count of 0, we don't have to wait for any 3759 * TBTT before switching, so complete the CSA 3760 * immediately. In theory, with a count == 1 we 3761 * should delay the switch until just before the next 3762 * TBTT, but that would complicate things so we switch 3763 * immediately too. If we would delay the switch 3764 * until the next TBTT, we would have to set the probe 3765 * response here. 3766 * 3767 * TODO: A channel switch with count <= 1 without 3768 * sending a CSA action frame is kind of useless, 3769 * because the clients won't know we're changing 3770 * channels. The action frame must be implemented 3771 * either here or in the userspace. 3772 */ 3773 if (params->count <= 1) 3774 break; 3775 3776 if ((params->n_counter_offsets_beacon > 3777 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3778 (params->n_counter_offsets_presp > 3779 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3780 ieee80211_free_next_beacon(&sdata->deflink); 3781 return -EINVAL; 3782 } 3783 3784 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3785 csa.counter_offsets_presp = params->counter_offsets_presp; 3786 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3787 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3788 csa.count = params->count; 3789 3790 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3791 ¶ms->beacon_csa, &csa, 3792 NULL, changed); 3793 if (err < 0) { 3794 ieee80211_free_next_beacon(&sdata->deflink); 3795 return err; 3796 } 3797 3798 break; 3799 case NL80211_IFTYPE_ADHOC: 3800 if (!sdata->vif.cfg.ibss_joined) 3801 return -EINVAL; 3802 3803 if (params->chandef.width != sdata->u.ibss.chandef.width) 3804 return -EINVAL; 3805 3806 switch (params->chandef.width) { 3807 case NL80211_CHAN_WIDTH_40: 3808 if (cfg80211_get_chandef_type(¶ms->chandef) != 3809 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3810 return -EINVAL; 3811 break; 3812 case NL80211_CHAN_WIDTH_5: 3813 case NL80211_CHAN_WIDTH_10: 3814 case NL80211_CHAN_WIDTH_20_NOHT: 3815 case NL80211_CHAN_WIDTH_20: 3816 break; 3817 default: 3818 return -EINVAL; 3819 } 3820 3821 /* changes into another band are not supported */ 3822 if (sdata->u.ibss.chandef.chan->band != 3823 params->chandef.chan->band) 3824 return -EINVAL; 3825 3826 /* see comments in the NL80211_IFTYPE_AP block */ 3827 if (params->count > 1) { 3828 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3829 if (err < 0) 3830 return err; 3831 } 3832 3833 ieee80211_send_action_csa(sdata, params); 3834 3835 break; 3836 #ifdef CONFIG_MAC80211_MESH 3837 case NL80211_IFTYPE_MESH_POINT: { 3838 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3839 3840 /* changes into another band are not supported */ 3841 if (sdata->vif.bss_conf.chandef.chan->band != 3842 params->chandef.chan->band) 3843 return -EINVAL; 3844 3845 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3846 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3847 if (!ifmsh->pre_value) 3848 ifmsh->pre_value = 1; 3849 else 3850 ifmsh->pre_value++; 3851 } 3852 3853 /* see comments in the NL80211_IFTYPE_AP block */ 3854 if (params->count > 1) { 3855 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3856 if (err < 0) { 3857 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3858 return err; 3859 } 3860 } 3861 3862 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3863 ieee80211_send_action_csa(sdata, params); 3864 3865 break; 3866 } 3867 #endif 3868 default: 3869 return -EOPNOTSUPP; 3870 } 3871 3872 return 0; 3873 } 3874 3875 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3876 { 3877 sdata->vif.bss_conf.color_change_active = false; 3878 3879 ieee80211_free_next_beacon(&sdata->deflink); 3880 3881 cfg80211_color_change_aborted_notify(sdata->dev); 3882 } 3883 3884 static int 3885 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3886 struct cfg80211_csa_settings *params) 3887 { 3888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3889 struct ieee80211_local *local = sdata->local; 3890 struct ieee80211_channel_switch ch_switch; 3891 struct ieee80211_chanctx_conf *conf; 3892 struct ieee80211_chanctx *chanctx; 3893 u64 changed = 0; 3894 int err; 3895 3896 sdata_assert_lock(sdata); 3897 lockdep_assert_held(&local->mtx); 3898 3899 if (!list_empty(&local->roc_list) || local->scanning) 3900 return -EBUSY; 3901 3902 if (sdata->wdev.cac_started) 3903 return -EBUSY; 3904 3905 if (cfg80211_chandef_identical(¶ms->chandef, 3906 &sdata->vif.bss_conf.chandef)) 3907 return -EINVAL; 3908 3909 /* don't allow another channel switch if one is already active. */ 3910 if (sdata->vif.bss_conf.csa_active) 3911 return -EBUSY; 3912 3913 mutex_lock(&local->chanctx_mtx); 3914 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3915 lockdep_is_held(&local->chanctx_mtx)); 3916 if (!conf) { 3917 err = -EBUSY; 3918 goto out; 3919 } 3920 3921 if (params->chandef.chan->freq_offset) { 3922 /* this may work, but is untested */ 3923 err = -EOPNOTSUPP; 3924 goto out; 3925 } 3926 3927 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3928 3929 ch_switch.timestamp = 0; 3930 ch_switch.device_timestamp = 0; 3931 ch_switch.block_tx = params->block_tx; 3932 ch_switch.chandef = params->chandef; 3933 ch_switch.count = params->count; 3934 3935 err = drv_pre_channel_switch(sdata, &ch_switch); 3936 if (err) 3937 goto out; 3938 3939 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3940 chanctx->mode, 3941 params->radar_required); 3942 if (err) 3943 goto out; 3944 3945 /* if reservation is invalid then this will fail */ 3946 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3947 if (err) { 3948 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3949 goto out; 3950 } 3951 3952 /* if there is a color change in progress, abort it */ 3953 if (sdata->vif.bss_conf.color_change_active) 3954 ieee80211_color_change_abort(sdata); 3955 3956 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3957 if (err) { 3958 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3959 goto out; 3960 } 3961 3962 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3963 goto out; 3964 3965 sdata->deflink.csa_chandef = params->chandef; 3966 sdata->deflink.csa_block_tx = params->block_tx; 3967 sdata->vif.bss_conf.csa_active = true; 3968 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3969 3970 if (sdata->deflink.csa_block_tx) 3971 ieee80211_stop_vif_queues(local, sdata, 3972 IEEE80211_QUEUE_STOP_REASON_CSA); 3973 3974 cfg80211_ch_switch_started_notify(sdata->dev, 3975 &sdata->deflink.csa_chandef, 0, 3976 params->count, params->block_tx, 3977 sdata->vif.bss_conf.csa_punct_bitmap); 3978 3979 if (changed) { 3980 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3981 changed); 3982 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3983 } else { 3984 /* if the beacon didn't change, we can finalize immediately */ 3985 ieee80211_csa_finalize(sdata); 3986 } 3987 3988 out: 3989 mutex_unlock(&local->chanctx_mtx); 3990 return err; 3991 } 3992 3993 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3994 struct cfg80211_csa_settings *params) 3995 { 3996 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3997 struct ieee80211_local *local = sdata->local; 3998 int err; 3999 4000 mutex_lock(&local->mtx); 4001 err = __ieee80211_channel_switch(wiphy, dev, params); 4002 mutex_unlock(&local->mtx); 4003 4004 return err; 4005 } 4006 4007 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4008 { 4009 lockdep_assert_held(&local->mtx); 4010 4011 local->roc_cookie_counter++; 4012 4013 /* wow, you wrapped 64 bits ... more likely a bug */ 4014 if (WARN_ON(local->roc_cookie_counter == 0)) 4015 local->roc_cookie_counter++; 4016 4017 return local->roc_cookie_counter; 4018 } 4019 4020 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4021 u64 *cookie, gfp_t gfp) 4022 { 4023 unsigned long spin_flags; 4024 struct sk_buff *ack_skb; 4025 int id; 4026 4027 ack_skb = skb_copy(skb, gfp); 4028 if (!ack_skb) 4029 return -ENOMEM; 4030 4031 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4032 id = idr_alloc(&local->ack_status_frames, ack_skb, 4033 1, 0x2000, GFP_ATOMIC); 4034 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4035 4036 if (id < 0) { 4037 kfree_skb(ack_skb); 4038 return -ENOMEM; 4039 } 4040 4041 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4042 4043 *cookie = ieee80211_mgmt_tx_cookie(local); 4044 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4045 4046 return 0; 4047 } 4048 4049 static void 4050 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4051 struct wireless_dev *wdev, 4052 struct mgmt_frame_regs *upd) 4053 { 4054 struct ieee80211_local *local = wiphy_priv(wiphy); 4055 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4056 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4057 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4058 bool global_change, intf_change; 4059 4060 global_change = 4061 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4062 (local->rx_mcast_action_reg != 4063 !!(upd->global_mcast_stypes & action_mask)); 4064 local->probe_req_reg = upd->global_stypes & preq_mask; 4065 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4066 4067 intf_change = (sdata->vif.probe_req_reg != 4068 !!(upd->interface_stypes & preq_mask)) || 4069 (sdata->vif.rx_mcast_action_reg != 4070 !!(upd->interface_mcast_stypes & action_mask)); 4071 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4072 sdata->vif.rx_mcast_action_reg = 4073 upd->interface_mcast_stypes & action_mask; 4074 4075 if (!local->open_count) 4076 return; 4077 4078 if (intf_change && ieee80211_sdata_running(sdata)) 4079 drv_config_iface_filter(local, sdata, 4080 sdata->vif.probe_req_reg ? 4081 FIF_PROBE_REQ : 0, 4082 FIF_PROBE_REQ); 4083 4084 if (global_change) 4085 ieee80211_configure_filter(local); 4086 } 4087 4088 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4089 { 4090 struct ieee80211_local *local = wiphy_priv(wiphy); 4091 4092 if (local->started) 4093 return -EOPNOTSUPP; 4094 4095 return drv_set_antenna(local, tx_ant, rx_ant); 4096 } 4097 4098 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4099 { 4100 struct ieee80211_local *local = wiphy_priv(wiphy); 4101 4102 return drv_get_antenna(local, tx_ant, rx_ant); 4103 } 4104 4105 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4106 struct net_device *dev, 4107 struct cfg80211_gtk_rekey_data *data) 4108 { 4109 struct ieee80211_local *local = wiphy_priv(wiphy); 4110 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4111 4112 if (!local->ops->set_rekey_data) 4113 return -EOPNOTSUPP; 4114 4115 drv_set_rekey_data(local, sdata, data); 4116 4117 return 0; 4118 } 4119 4120 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4121 const u8 *peer, u64 *cookie) 4122 { 4123 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4124 struct ieee80211_local *local = sdata->local; 4125 struct ieee80211_qos_hdr *nullfunc; 4126 struct sk_buff *skb; 4127 int size = sizeof(*nullfunc); 4128 __le16 fc; 4129 bool qos; 4130 struct ieee80211_tx_info *info; 4131 struct sta_info *sta; 4132 struct ieee80211_chanctx_conf *chanctx_conf; 4133 enum nl80211_band band; 4134 int ret; 4135 4136 /* the lock is needed to assign the cookie later */ 4137 mutex_lock(&local->mtx); 4138 4139 rcu_read_lock(); 4140 sta = sta_info_get_bss(sdata, peer); 4141 if (!sta) { 4142 ret = -ENOLINK; 4143 goto unlock; 4144 } 4145 4146 qos = sta->sta.wme; 4147 4148 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4149 if (WARN_ON(!chanctx_conf)) { 4150 ret = -EINVAL; 4151 goto unlock; 4152 } 4153 band = chanctx_conf->def.chan->band; 4154 4155 if (qos) { 4156 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4157 IEEE80211_STYPE_QOS_NULLFUNC | 4158 IEEE80211_FCTL_FROMDS); 4159 } else { 4160 size -= 2; 4161 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4162 IEEE80211_STYPE_NULLFUNC | 4163 IEEE80211_FCTL_FROMDS); 4164 } 4165 4166 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4167 if (!skb) { 4168 ret = -ENOMEM; 4169 goto unlock; 4170 } 4171 4172 skb->dev = dev; 4173 4174 skb_reserve(skb, local->hw.extra_tx_headroom); 4175 4176 nullfunc = skb_put(skb, size); 4177 nullfunc->frame_control = fc; 4178 nullfunc->duration_id = 0; 4179 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4180 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4181 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4182 nullfunc->seq_ctrl = 0; 4183 4184 info = IEEE80211_SKB_CB(skb); 4185 4186 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4187 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4188 info->band = band; 4189 4190 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4191 skb->priority = 7; 4192 if (qos) 4193 nullfunc->qos_ctrl = cpu_to_le16(7); 4194 4195 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4196 if (ret) { 4197 kfree_skb(skb); 4198 goto unlock; 4199 } 4200 4201 local_bh_disable(); 4202 ieee80211_xmit(sdata, sta, skb); 4203 local_bh_enable(); 4204 4205 ret = 0; 4206 unlock: 4207 rcu_read_unlock(); 4208 mutex_unlock(&local->mtx); 4209 4210 return ret; 4211 } 4212 4213 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4214 struct wireless_dev *wdev, 4215 unsigned int link_id, 4216 struct cfg80211_chan_def *chandef) 4217 { 4218 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4219 struct ieee80211_local *local = wiphy_priv(wiphy); 4220 struct ieee80211_chanctx_conf *chanctx_conf; 4221 struct ieee80211_link_data *link; 4222 int ret = -ENODATA; 4223 4224 rcu_read_lock(); 4225 link = rcu_dereference(sdata->link[link_id]); 4226 if (!link) { 4227 ret = -ENOLINK; 4228 goto out; 4229 } 4230 4231 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4232 if (chanctx_conf) { 4233 *chandef = link->conf->chandef; 4234 ret = 0; 4235 } else if (local->open_count > 0 && 4236 local->open_count == local->monitors && 4237 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4238 if (local->use_chanctx) 4239 *chandef = local->monitor_chandef; 4240 else 4241 *chandef = local->_oper_chandef; 4242 ret = 0; 4243 } 4244 out: 4245 rcu_read_unlock(); 4246 4247 return ret; 4248 } 4249 4250 #ifdef CONFIG_PM 4251 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4252 { 4253 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4254 } 4255 #endif 4256 4257 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4258 struct net_device *dev, 4259 struct cfg80211_qos_map *qos_map) 4260 { 4261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4262 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4263 4264 if (qos_map) { 4265 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4266 if (!new_qos_map) 4267 return -ENOMEM; 4268 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4269 } else { 4270 /* A NULL qos_map was passed to disable QoS mapping */ 4271 new_qos_map = NULL; 4272 } 4273 4274 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4275 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4276 if (old_qos_map) 4277 kfree_rcu(old_qos_map, rcu_head); 4278 4279 return 0; 4280 } 4281 4282 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4283 struct net_device *dev, 4284 unsigned int link_id, 4285 struct cfg80211_chan_def *chandef) 4286 { 4287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4288 struct ieee80211_link_data *link; 4289 int ret; 4290 u64 changed = 0; 4291 4292 link = sdata_dereference(sdata->link[link_id], sdata); 4293 4294 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4295 if (ret == 0) 4296 ieee80211_link_info_change_notify(sdata, link, changed); 4297 4298 return ret; 4299 } 4300 4301 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4302 u8 tsid, const u8 *peer, u8 up, 4303 u16 admitted_time) 4304 { 4305 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4306 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4307 int ac = ieee802_1d_to_ac[up]; 4308 4309 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4310 return -EOPNOTSUPP; 4311 4312 if (!(sdata->wmm_acm & BIT(up))) 4313 return -EINVAL; 4314 4315 if (ifmgd->tx_tspec[ac].admitted_time) 4316 return -EBUSY; 4317 4318 if (admitted_time) { 4319 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4320 ifmgd->tx_tspec[ac].tsid = tsid; 4321 ifmgd->tx_tspec[ac].up = up; 4322 } 4323 4324 return 0; 4325 } 4326 4327 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4328 u8 tsid, const u8 *peer) 4329 { 4330 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4331 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4332 struct ieee80211_local *local = wiphy_priv(wiphy); 4333 int ac; 4334 4335 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4336 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4337 4338 /* skip unused entries */ 4339 if (!tx_tspec->admitted_time) 4340 continue; 4341 4342 if (tx_tspec->tsid != tsid) 4343 continue; 4344 4345 /* due to this new packets will be reassigned to non-ACM ACs */ 4346 tx_tspec->up = -1; 4347 4348 /* Make sure that all packets have been sent to avoid to 4349 * restore the QoS params on packets that are still on the 4350 * queues. 4351 */ 4352 synchronize_net(); 4353 ieee80211_flush_queues(local, sdata, false); 4354 4355 /* restore the normal QoS parameters 4356 * (unconditionally to avoid races) 4357 */ 4358 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4359 tx_tspec->downgraded = false; 4360 ieee80211_sta_handle_tspec_ac_params(sdata); 4361 4362 /* finally clear all the data */ 4363 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4364 4365 return 0; 4366 } 4367 4368 return -ENOENT; 4369 } 4370 4371 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4372 u8 inst_id, 4373 enum nl80211_nan_func_term_reason reason, 4374 gfp_t gfp) 4375 { 4376 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4377 struct cfg80211_nan_func *func; 4378 u64 cookie; 4379 4380 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4381 return; 4382 4383 spin_lock_bh(&sdata->u.nan.func_lock); 4384 4385 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4386 if (WARN_ON(!func)) { 4387 spin_unlock_bh(&sdata->u.nan.func_lock); 4388 return; 4389 } 4390 4391 cookie = func->cookie; 4392 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4393 4394 spin_unlock_bh(&sdata->u.nan.func_lock); 4395 4396 cfg80211_free_nan_func(func); 4397 4398 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4399 reason, cookie, gfp); 4400 } 4401 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4402 4403 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4404 struct cfg80211_nan_match_params *match, 4405 gfp_t gfp) 4406 { 4407 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4408 struct cfg80211_nan_func *func; 4409 4410 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4411 return; 4412 4413 spin_lock_bh(&sdata->u.nan.func_lock); 4414 4415 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4416 if (WARN_ON(!func)) { 4417 spin_unlock_bh(&sdata->u.nan.func_lock); 4418 return; 4419 } 4420 match->cookie = func->cookie; 4421 4422 spin_unlock_bh(&sdata->u.nan.func_lock); 4423 4424 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4425 } 4426 EXPORT_SYMBOL(ieee80211_nan_func_match); 4427 4428 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4429 struct net_device *dev, 4430 const bool enabled) 4431 { 4432 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4433 4434 sdata->u.ap.multicast_to_unicast = enabled; 4435 4436 return 0; 4437 } 4438 4439 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4440 struct txq_info *txqi) 4441 { 4442 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4443 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4444 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4445 } 4446 4447 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4448 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4449 txqstats->backlog_packets = txqi->tin.backlog_packets; 4450 } 4451 4452 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4453 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4454 txqstats->flows = txqi->tin.flows; 4455 } 4456 4457 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4458 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4459 txqstats->drops = txqi->cstats.drop_count; 4460 } 4461 4462 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4463 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4464 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4465 } 4466 4467 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4468 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4469 txqstats->overlimit = txqi->tin.overlimit; 4470 } 4471 4472 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4473 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4474 txqstats->collisions = txqi->tin.collisions; 4475 } 4476 4477 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4478 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4479 txqstats->tx_bytes = txqi->tin.tx_bytes; 4480 } 4481 4482 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4483 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4484 txqstats->tx_packets = txqi->tin.tx_packets; 4485 } 4486 } 4487 4488 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4489 struct wireless_dev *wdev, 4490 struct cfg80211_txq_stats *txqstats) 4491 { 4492 struct ieee80211_local *local = wiphy_priv(wiphy); 4493 struct ieee80211_sub_if_data *sdata; 4494 int ret = 0; 4495 4496 spin_lock_bh(&local->fq.lock); 4497 rcu_read_lock(); 4498 4499 if (wdev) { 4500 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4501 if (!sdata->vif.txq) { 4502 ret = 1; 4503 goto out; 4504 } 4505 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4506 } else { 4507 /* phy stats */ 4508 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4509 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4510 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4511 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4512 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4513 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4514 txqstats->backlog_packets = local->fq.backlog; 4515 txqstats->backlog_bytes = local->fq.memory_usage; 4516 txqstats->overlimit = local->fq.overlimit; 4517 txqstats->overmemory = local->fq.overmemory; 4518 txqstats->collisions = local->fq.collisions; 4519 txqstats->max_flows = local->fq.flows_cnt; 4520 } 4521 4522 out: 4523 rcu_read_unlock(); 4524 spin_unlock_bh(&local->fq.lock); 4525 4526 return ret; 4527 } 4528 4529 static int 4530 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4531 struct net_device *dev, 4532 struct cfg80211_ftm_responder_stats *ftm_stats) 4533 { 4534 struct ieee80211_local *local = wiphy_priv(wiphy); 4535 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4536 4537 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4538 } 4539 4540 static int 4541 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4542 struct cfg80211_pmsr_request *request) 4543 { 4544 struct ieee80211_local *local = wiphy_priv(wiphy); 4545 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4546 4547 return drv_start_pmsr(local, sdata, request); 4548 } 4549 4550 static void 4551 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4552 struct cfg80211_pmsr_request *request) 4553 { 4554 struct ieee80211_local *local = wiphy_priv(wiphy); 4555 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4556 4557 return drv_abort_pmsr(local, sdata, request); 4558 } 4559 4560 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4561 struct net_device *dev, 4562 struct cfg80211_tid_config *tid_conf) 4563 { 4564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4565 struct sta_info *sta; 4566 int ret; 4567 4568 if (!sdata->local->ops->set_tid_config) 4569 return -EOPNOTSUPP; 4570 4571 if (!tid_conf->peer) 4572 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4573 4574 mutex_lock(&sdata->local->sta_mtx); 4575 sta = sta_info_get_bss(sdata, tid_conf->peer); 4576 if (!sta) { 4577 mutex_unlock(&sdata->local->sta_mtx); 4578 return -ENOENT; 4579 } 4580 4581 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4582 mutex_unlock(&sdata->local->sta_mtx); 4583 4584 return ret; 4585 } 4586 4587 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4588 struct net_device *dev, 4589 const u8 *peer, u8 tids) 4590 { 4591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4592 struct sta_info *sta; 4593 int ret; 4594 4595 if (!sdata->local->ops->reset_tid_config) 4596 return -EOPNOTSUPP; 4597 4598 if (!peer) 4599 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4600 4601 mutex_lock(&sdata->local->sta_mtx); 4602 sta = sta_info_get_bss(sdata, peer); 4603 if (!sta) { 4604 mutex_unlock(&sdata->local->sta_mtx); 4605 return -ENOENT; 4606 } 4607 4608 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4609 mutex_unlock(&sdata->local->sta_mtx); 4610 4611 return ret; 4612 } 4613 4614 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4615 struct cfg80211_sar_specs *sar) 4616 { 4617 struct ieee80211_local *local = wiphy_priv(wiphy); 4618 4619 if (!local->ops->set_sar_specs) 4620 return -EOPNOTSUPP; 4621 4622 return local->ops->set_sar_specs(&local->hw, sar); 4623 } 4624 4625 static int 4626 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4627 u64 *changed) 4628 { 4629 switch (sdata->vif.type) { 4630 case NL80211_IFTYPE_AP: { 4631 int ret; 4632 4633 if (!sdata->deflink.u.ap.next_beacon) 4634 return -EINVAL; 4635 4636 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4637 sdata->deflink.u.ap.next_beacon, 4638 NULL, NULL, changed); 4639 ieee80211_free_next_beacon(&sdata->deflink); 4640 4641 if (ret < 0) 4642 return ret; 4643 4644 break; 4645 } 4646 default: 4647 WARN_ON_ONCE(1); 4648 return -EINVAL; 4649 } 4650 4651 return 0; 4652 } 4653 4654 static int 4655 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4656 struct cfg80211_color_change_settings *params, 4657 u64 *changed) 4658 { 4659 struct ieee80211_color_change_settings color_change = {}; 4660 int err; 4661 4662 switch (sdata->vif.type) { 4663 case NL80211_IFTYPE_AP: 4664 sdata->deflink.u.ap.next_beacon = 4665 cfg80211_beacon_dup(¶ms->beacon_next); 4666 if (!sdata->deflink.u.ap.next_beacon) 4667 return -ENOMEM; 4668 4669 if (params->count <= 1) 4670 break; 4671 4672 color_change.counter_offset_beacon = 4673 params->counter_offset_beacon; 4674 color_change.counter_offset_presp = 4675 params->counter_offset_presp; 4676 color_change.count = params->count; 4677 4678 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4679 ¶ms->beacon_color_change, 4680 NULL, &color_change, changed); 4681 if (err < 0) { 4682 ieee80211_free_next_beacon(&sdata->deflink); 4683 return err; 4684 } 4685 break; 4686 default: 4687 return -EOPNOTSUPP; 4688 } 4689 4690 return 0; 4691 } 4692 4693 static void 4694 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4695 u8 color, int enable, u64 changed) 4696 { 4697 sdata->vif.bss_conf.he_bss_color.color = color; 4698 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4699 changed |= BSS_CHANGED_HE_BSS_COLOR; 4700 4701 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4702 4703 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4704 struct ieee80211_sub_if_data *child; 4705 4706 mutex_lock(&sdata->local->iflist_mtx); 4707 list_for_each_entry(child, &sdata->local->interfaces, list) { 4708 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4709 child->vif.bss_conf.he_bss_color.color = color; 4710 child->vif.bss_conf.he_bss_color.enabled = enable; 4711 ieee80211_link_info_change_notify(child, 4712 &child->deflink, 4713 BSS_CHANGED_HE_BSS_COLOR); 4714 } 4715 } 4716 mutex_unlock(&sdata->local->iflist_mtx); 4717 } 4718 } 4719 4720 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4721 { 4722 struct ieee80211_local *local = sdata->local; 4723 u64 changed = 0; 4724 int err; 4725 4726 sdata_assert_lock(sdata); 4727 lockdep_assert_held(&local->mtx); 4728 4729 sdata->vif.bss_conf.color_change_active = false; 4730 4731 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4732 if (err) { 4733 cfg80211_color_change_aborted_notify(sdata->dev); 4734 return err; 4735 } 4736 4737 ieee80211_color_change_bss_config_notify(sdata, 4738 sdata->vif.bss_conf.color_change_color, 4739 1, changed); 4740 cfg80211_color_change_notify(sdata->dev); 4741 4742 return 0; 4743 } 4744 4745 void ieee80211_color_change_finalize_work(struct work_struct *work) 4746 { 4747 struct ieee80211_sub_if_data *sdata = 4748 container_of(work, struct ieee80211_sub_if_data, 4749 deflink.color_change_finalize_work); 4750 struct ieee80211_local *local = sdata->local; 4751 4752 sdata_lock(sdata); 4753 mutex_lock(&local->mtx); 4754 4755 /* AP might have been stopped while waiting for the lock. */ 4756 if (!sdata->vif.bss_conf.color_change_active) 4757 goto unlock; 4758 4759 if (!ieee80211_sdata_running(sdata)) 4760 goto unlock; 4761 4762 ieee80211_color_change_finalize(sdata); 4763 4764 unlock: 4765 mutex_unlock(&local->mtx); 4766 sdata_unlock(sdata); 4767 } 4768 4769 void ieee80211_color_collision_detection_work(struct work_struct *work) 4770 { 4771 struct delayed_work *delayed_work = to_delayed_work(work); 4772 struct ieee80211_link_data *link = 4773 container_of(delayed_work, struct ieee80211_link_data, 4774 color_collision_detect_work); 4775 struct ieee80211_sub_if_data *sdata = link->sdata; 4776 4777 sdata_lock(sdata); 4778 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4779 sdata_unlock(sdata); 4780 } 4781 4782 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4783 { 4784 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4785 4786 ieee80211_queue_work(&sdata->local->hw, 4787 &sdata->deflink.color_change_finalize_work); 4788 } 4789 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4790 4791 void 4792 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4793 u64 color_bitmap, gfp_t gfp) 4794 { 4795 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4796 struct ieee80211_link_data *link = &sdata->deflink; 4797 4798 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4799 return; 4800 4801 if (delayed_work_pending(&link->color_collision_detect_work)) 4802 return; 4803 4804 link->color_bitmap = color_bitmap; 4805 /* queue the color collision detection event every 500 ms in order to 4806 * avoid sending too much netlink messages to userspace. 4807 */ 4808 ieee80211_queue_delayed_work(&sdata->local->hw, 4809 &link->color_collision_detect_work, 4810 msecs_to_jiffies(500)); 4811 } 4812 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4813 4814 static int 4815 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4816 struct cfg80211_color_change_settings *params) 4817 { 4818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4819 struct ieee80211_local *local = sdata->local; 4820 u64 changed = 0; 4821 int err; 4822 4823 sdata_assert_lock(sdata); 4824 4825 if (sdata->vif.bss_conf.nontransmitted) 4826 return -EINVAL; 4827 4828 mutex_lock(&local->mtx); 4829 4830 /* don't allow another color change if one is already active or if csa 4831 * is active 4832 */ 4833 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4834 err = -EBUSY; 4835 goto out; 4836 } 4837 4838 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4839 if (err) 4840 goto out; 4841 4842 sdata->vif.bss_conf.color_change_active = true; 4843 sdata->vif.bss_conf.color_change_color = params->color; 4844 4845 cfg80211_color_change_started_notify(sdata->dev, params->count); 4846 4847 if (changed) 4848 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4849 else 4850 /* if the beacon didn't change, we can finalize immediately */ 4851 ieee80211_color_change_finalize(sdata); 4852 4853 out: 4854 mutex_unlock(&local->mtx); 4855 4856 return err; 4857 } 4858 4859 static int 4860 ieee80211_set_radar_background(struct wiphy *wiphy, 4861 struct cfg80211_chan_def *chandef) 4862 { 4863 struct ieee80211_local *local = wiphy_priv(wiphy); 4864 4865 if (!local->ops->set_radar_background) 4866 return -EOPNOTSUPP; 4867 4868 return local->ops->set_radar_background(&local->hw, chandef); 4869 } 4870 4871 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4872 struct wireless_dev *wdev, 4873 unsigned int link_id) 4874 { 4875 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4876 int res; 4877 4878 if (wdev->use_4addr) 4879 return -EOPNOTSUPP; 4880 4881 mutex_lock(&sdata->local->mtx); 4882 res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4883 mutex_unlock(&sdata->local->mtx); 4884 4885 return res; 4886 } 4887 4888 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4889 struct wireless_dev *wdev, 4890 unsigned int link_id) 4891 { 4892 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4893 4894 mutex_lock(&sdata->local->mtx); 4895 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4896 mutex_unlock(&sdata->local->mtx); 4897 } 4898 4899 static int sta_add_link_station(struct ieee80211_local *local, 4900 struct ieee80211_sub_if_data *sdata, 4901 struct link_station_parameters *params) 4902 { 4903 struct sta_info *sta; 4904 int ret; 4905 4906 sta = sta_info_get_bss(sdata, params->mld_mac); 4907 if (!sta) 4908 return -ENOENT; 4909 4910 if (!sta->sta.valid_links) 4911 return -EINVAL; 4912 4913 if (sta->sta.valid_links & BIT(params->link_id)) 4914 return -EALREADY; 4915 4916 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4917 if (ret) 4918 return ret; 4919 4920 ret = sta_link_apply_parameters(local, sta, true, params); 4921 if (ret) { 4922 ieee80211_sta_free_link(sta, params->link_id); 4923 return ret; 4924 } 4925 4926 /* ieee80211_sta_activate_link frees the link upon failure */ 4927 return ieee80211_sta_activate_link(sta, params->link_id); 4928 } 4929 4930 static int 4931 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4932 struct link_station_parameters *params) 4933 { 4934 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4935 struct ieee80211_local *local = wiphy_priv(wiphy); 4936 int ret; 4937 4938 mutex_lock(&sdata->local->sta_mtx); 4939 ret = sta_add_link_station(local, sdata, params); 4940 mutex_unlock(&sdata->local->sta_mtx); 4941 4942 return ret; 4943 } 4944 4945 static int sta_mod_link_station(struct ieee80211_local *local, 4946 struct ieee80211_sub_if_data *sdata, 4947 struct link_station_parameters *params) 4948 { 4949 struct sta_info *sta; 4950 4951 sta = sta_info_get_bss(sdata, params->mld_mac); 4952 if (!sta) 4953 return -ENOENT; 4954 4955 if (!(sta->sta.valid_links & BIT(params->link_id))) 4956 return -EINVAL; 4957 4958 return sta_link_apply_parameters(local, sta, false, params); 4959 } 4960 4961 static int 4962 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4963 struct link_station_parameters *params) 4964 { 4965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4966 struct ieee80211_local *local = wiphy_priv(wiphy); 4967 int ret; 4968 4969 mutex_lock(&sdata->local->sta_mtx); 4970 ret = sta_mod_link_station(local, sdata, params); 4971 mutex_unlock(&sdata->local->sta_mtx); 4972 4973 return ret; 4974 } 4975 4976 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4977 struct link_station_del_parameters *params) 4978 { 4979 struct sta_info *sta; 4980 4981 sta = sta_info_get_bss(sdata, params->mld_mac); 4982 if (!sta) 4983 return -ENOENT; 4984 4985 if (!(sta->sta.valid_links & BIT(params->link_id))) 4986 return -EINVAL; 4987 4988 /* must not create a STA without links */ 4989 if (sta->sta.valid_links == BIT(params->link_id)) 4990 return -EINVAL; 4991 4992 ieee80211_sta_remove_link(sta, params->link_id); 4993 4994 return 0; 4995 } 4996 4997 static int 4998 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4999 struct link_station_del_parameters *params) 5000 { 5001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5002 int ret; 5003 5004 mutex_lock(&sdata->local->sta_mtx); 5005 ret = sta_del_link_station(sdata, params); 5006 mutex_unlock(&sdata->local->sta_mtx); 5007 5008 return ret; 5009 } 5010 5011 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5012 struct net_device *dev, 5013 struct cfg80211_set_hw_timestamp *hwts) 5014 { 5015 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5016 struct ieee80211_local *local = sdata->local; 5017 5018 if (!local->ops->set_hw_timestamp) 5019 return -EOPNOTSUPP; 5020 5021 if (!check_sdata_in_driver(sdata)) 5022 return -EIO; 5023 5024 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5025 } 5026 5027 const struct cfg80211_ops mac80211_config_ops = { 5028 .add_virtual_intf = ieee80211_add_iface, 5029 .del_virtual_intf = ieee80211_del_iface, 5030 .change_virtual_intf = ieee80211_change_iface, 5031 .start_p2p_device = ieee80211_start_p2p_device, 5032 .stop_p2p_device = ieee80211_stop_p2p_device, 5033 .add_key = ieee80211_add_key, 5034 .del_key = ieee80211_del_key, 5035 .get_key = ieee80211_get_key, 5036 .set_default_key = ieee80211_config_default_key, 5037 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5038 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5039 .start_ap = ieee80211_start_ap, 5040 .change_beacon = ieee80211_change_beacon, 5041 .stop_ap = ieee80211_stop_ap, 5042 .add_station = ieee80211_add_station, 5043 .del_station = ieee80211_del_station, 5044 .change_station = ieee80211_change_station, 5045 .get_station = ieee80211_get_station, 5046 .dump_station = ieee80211_dump_station, 5047 .dump_survey = ieee80211_dump_survey, 5048 #ifdef CONFIG_MAC80211_MESH 5049 .add_mpath = ieee80211_add_mpath, 5050 .del_mpath = ieee80211_del_mpath, 5051 .change_mpath = ieee80211_change_mpath, 5052 .get_mpath = ieee80211_get_mpath, 5053 .dump_mpath = ieee80211_dump_mpath, 5054 .get_mpp = ieee80211_get_mpp, 5055 .dump_mpp = ieee80211_dump_mpp, 5056 .update_mesh_config = ieee80211_update_mesh_config, 5057 .get_mesh_config = ieee80211_get_mesh_config, 5058 .join_mesh = ieee80211_join_mesh, 5059 .leave_mesh = ieee80211_leave_mesh, 5060 #endif 5061 .join_ocb = ieee80211_join_ocb, 5062 .leave_ocb = ieee80211_leave_ocb, 5063 .change_bss = ieee80211_change_bss, 5064 .inform_bss = ieee80211_inform_bss, 5065 .set_txq_params = ieee80211_set_txq_params, 5066 .set_monitor_channel = ieee80211_set_monitor_channel, 5067 .suspend = ieee80211_suspend, 5068 .resume = ieee80211_resume, 5069 .scan = ieee80211_scan, 5070 .abort_scan = ieee80211_abort_scan, 5071 .sched_scan_start = ieee80211_sched_scan_start, 5072 .sched_scan_stop = ieee80211_sched_scan_stop, 5073 .auth = ieee80211_auth, 5074 .assoc = ieee80211_assoc, 5075 .deauth = ieee80211_deauth, 5076 .disassoc = ieee80211_disassoc, 5077 .join_ibss = ieee80211_join_ibss, 5078 .leave_ibss = ieee80211_leave_ibss, 5079 .set_mcast_rate = ieee80211_set_mcast_rate, 5080 .set_wiphy_params = ieee80211_set_wiphy_params, 5081 .set_tx_power = ieee80211_set_tx_power, 5082 .get_tx_power = ieee80211_get_tx_power, 5083 .rfkill_poll = ieee80211_rfkill_poll, 5084 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5085 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5086 .set_power_mgmt = ieee80211_set_power_mgmt, 5087 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5088 .remain_on_channel = ieee80211_remain_on_channel, 5089 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5090 .mgmt_tx = ieee80211_mgmt_tx, 5091 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5092 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5093 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5094 .update_mgmt_frame_registrations = 5095 ieee80211_update_mgmt_frame_registrations, 5096 .set_antenna = ieee80211_set_antenna, 5097 .get_antenna = ieee80211_get_antenna, 5098 .set_rekey_data = ieee80211_set_rekey_data, 5099 .tdls_oper = ieee80211_tdls_oper, 5100 .tdls_mgmt = ieee80211_tdls_mgmt, 5101 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5102 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5103 .probe_client = ieee80211_probe_client, 5104 .set_noack_map = ieee80211_set_noack_map, 5105 #ifdef CONFIG_PM 5106 .set_wakeup = ieee80211_set_wakeup, 5107 #endif 5108 .get_channel = ieee80211_cfg_get_channel, 5109 .start_radar_detection = ieee80211_start_radar_detection, 5110 .end_cac = ieee80211_end_cac, 5111 .channel_switch = ieee80211_channel_switch, 5112 .set_qos_map = ieee80211_set_qos_map, 5113 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5114 .add_tx_ts = ieee80211_add_tx_ts, 5115 .del_tx_ts = ieee80211_del_tx_ts, 5116 .start_nan = ieee80211_start_nan, 5117 .stop_nan = ieee80211_stop_nan, 5118 .nan_change_conf = ieee80211_nan_change_conf, 5119 .add_nan_func = ieee80211_add_nan_func, 5120 .del_nan_func = ieee80211_del_nan_func, 5121 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5122 .tx_control_port = ieee80211_tx_control_port, 5123 .get_txq_stats = ieee80211_get_txq_stats, 5124 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5125 .start_pmsr = ieee80211_start_pmsr, 5126 .abort_pmsr = ieee80211_abort_pmsr, 5127 .probe_mesh_link = ieee80211_probe_mesh_link, 5128 .set_tid_config = ieee80211_set_tid_config, 5129 .reset_tid_config = ieee80211_reset_tid_config, 5130 .set_sar_specs = ieee80211_set_sar_specs, 5131 .color_change = ieee80211_color_change, 5132 .set_radar_background = ieee80211_set_radar_background, 5133 .add_intf_link = ieee80211_add_intf_link, 5134 .del_intf_link = ieee80211_del_intf_link, 5135 .add_link_station = ieee80211_add_link_station, 5136 .mod_link_station = ieee80211_mod_link_station, 5137 .del_link_station = ieee80211_del_link_station, 5138 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5139 }; 5140