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 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 ieee80211_sta_set_rx_nss(link_sta); 1891 1892 return ret; 1893 } 1894 1895 static int sta_apply_parameters(struct ieee80211_local *local, 1896 struct sta_info *sta, 1897 struct station_parameters *params) 1898 { 1899 struct ieee80211_sub_if_data *sdata = sta->sdata; 1900 u32 mask, set; 1901 int ret = 0; 1902 1903 mask = params->sta_flags_mask; 1904 set = params->sta_flags_set; 1905 1906 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1907 /* 1908 * In mesh mode, ASSOCIATED isn't part of the nl80211 1909 * API but must follow AUTHENTICATED for driver state. 1910 */ 1911 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1912 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1913 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1914 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1915 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1916 /* 1917 * TDLS -- everything follows authorized, but 1918 * only becoming authorized is possible, not 1919 * going back 1920 */ 1921 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1922 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1923 BIT(NL80211_STA_FLAG_ASSOCIATED); 1924 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1925 BIT(NL80211_STA_FLAG_ASSOCIATED); 1926 } 1927 } 1928 1929 if (mask & BIT(NL80211_STA_FLAG_WME) && 1930 local->hw.queues >= IEEE80211_NUM_ACS) 1931 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1932 1933 /* auth flags will be set later for TDLS, 1934 * and for unassociated stations that move to associated */ 1935 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1936 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1937 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1938 ret = sta_apply_auth_flags(local, sta, mask, set); 1939 if (ret) 1940 return ret; 1941 } 1942 1943 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1944 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1945 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1946 else 1947 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1948 } 1949 1950 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1951 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1952 if (set & BIT(NL80211_STA_FLAG_MFP)) 1953 set_sta_flag(sta, WLAN_STA_MFP); 1954 else 1955 clear_sta_flag(sta, WLAN_STA_MFP); 1956 } 1957 1958 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1959 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1960 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1961 else 1962 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1963 } 1964 1965 /* mark TDLS channel switch support, if the AP allows it */ 1966 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1967 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1968 params->ext_capab_len >= 4 && 1969 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1970 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1971 1972 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1973 !sdata->u.mgd.tdls_wider_bw_prohibited && 1974 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1975 params->ext_capab_len >= 8 && 1976 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1977 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1978 1979 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1980 sta->sta.uapsd_queues = params->uapsd_queues; 1981 sta->sta.max_sp = params->max_sp; 1982 } 1983 1984 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1985 params->ext_capab_len); 1986 1987 /* 1988 * cfg80211 validates this (1-2007) and allows setting the AID 1989 * only when creating a new station entry 1990 */ 1991 if (params->aid) 1992 sta->sta.aid = params->aid; 1993 1994 /* 1995 * Some of the following updates would be racy if called on an 1996 * existing station, via ieee80211_change_station(). However, 1997 * all such changes are rejected by cfg80211 except for updates 1998 * changing the supported rates on an existing but not yet used 1999 * TDLS peer. 2000 */ 2001 2002 if (params->listen_interval >= 0) 2003 sta->listen_interval = params->listen_interval; 2004 2005 ret = sta_link_apply_parameters(local, sta, false, 2006 ¶ms->link_sta_params); 2007 if (ret) 2008 return ret; 2009 2010 if (params->support_p2p_ps >= 0) 2011 sta->sta.support_p2p_ps = params->support_p2p_ps; 2012 2013 if (ieee80211_vif_is_mesh(&sdata->vif)) 2014 sta_apply_mesh_params(local, sta, params); 2015 2016 if (params->airtime_weight) 2017 sta->airtime_weight = params->airtime_weight; 2018 2019 /* set the STA state after all sta info from usermode has been set */ 2020 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2021 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2022 ret = sta_apply_auth_flags(local, sta, mask, set); 2023 if (ret) 2024 return ret; 2025 } 2026 2027 /* Mark the STA as MLO if MLD MAC address is available */ 2028 if (params->link_sta_params.mld_mac) 2029 sta->sta.mlo = true; 2030 2031 return 0; 2032 } 2033 2034 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2035 const u8 *mac, 2036 struct station_parameters *params) 2037 { 2038 struct ieee80211_local *local = wiphy_priv(wiphy); 2039 struct sta_info *sta; 2040 struct ieee80211_sub_if_data *sdata; 2041 int err; 2042 2043 if (params->vlan) { 2044 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2045 2046 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2047 sdata->vif.type != NL80211_IFTYPE_AP) 2048 return -EINVAL; 2049 } else 2050 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2051 2052 if (ether_addr_equal(mac, sdata->vif.addr)) 2053 return -EINVAL; 2054 2055 if (!is_valid_ether_addr(mac)) 2056 return -EINVAL; 2057 2058 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2059 sdata->vif.type == NL80211_IFTYPE_STATION && 2060 !sdata->u.mgd.associated) 2061 return -EINVAL; 2062 2063 /* 2064 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2065 * but we need to have a link_mac in that case as well, so use the 2066 * STA's MAC address in that case. 2067 */ 2068 if (params->link_sta_params.link_id >= 0) 2069 sta = sta_info_alloc_with_link(sdata, mac, 2070 params->link_sta_params.link_id, 2071 params->link_sta_params.link_mac ?: mac, 2072 GFP_KERNEL); 2073 else 2074 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2075 2076 if (!sta) 2077 return -ENOMEM; 2078 2079 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2080 sta->sta.tdls = true; 2081 2082 /* Though the mutex is not needed here (since the station is not 2083 * visible yet), sta_apply_parameters (and inner functions) require 2084 * the mutex due to other paths. 2085 */ 2086 mutex_lock(&local->sta_mtx); 2087 err = sta_apply_parameters(local, sta, params); 2088 mutex_unlock(&local->sta_mtx); 2089 if (err) { 2090 sta_info_free(local, sta); 2091 return err; 2092 } 2093 2094 /* 2095 * for TDLS and for unassociated station, rate control should be 2096 * initialized only when rates are known and station is marked 2097 * authorized/associated 2098 */ 2099 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2100 test_sta_flag(sta, WLAN_STA_ASSOC)) 2101 rate_control_rate_init(sta); 2102 2103 return sta_info_insert(sta); 2104 } 2105 2106 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2107 struct station_del_parameters *params) 2108 { 2109 struct ieee80211_sub_if_data *sdata; 2110 2111 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2112 2113 if (params->mac) 2114 return sta_info_destroy_addr_bss(sdata, params->mac); 2115 2116 sta_info_flush(sdata); 2117 return 0; 2118 } 2119 2120 static int ieee80211_change_station(struct wiphy *wiphy, 2121 struct net_device *dev, const u8 *mac, 2122 struct station_parameters *params) 2123 { 2124 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2125 struct ieee80211_local *local = wiphy_priv(wiphy); 2126 struct sta_info *sta; 2127 struct ieee80211_sub_if_data *vlansdata; 2128 enum cfg80211_station_type statype; 2129 int err; 2130 2131 mutex_lock(&local->sta_mtx); 2132 2133 sta = sta_info_get_bss(sdata, mac); 2134 if (!sta) { 2135 err = -ENOENT; 2136 goto out_err; 2137 } 2138 2139 switch (sdata->vif.type) { 2140 case NL80211_IFTYPE_MESH_POINT: 2141 if (sdata->u.mesh.user_mpm) 2142 statype = CFG80211_STA_MESH_PEER_USER; 2143 else 2144 statype = CFG80211_STA_MESH_PEER_KERNEL; 2145 break; 2146 case NL80211_IFTYPE_ADHOC: 2147 statype = CFG80211_STA_IBSS; 2148 break; 2149 case NL80211_IFTYPE_STATION: 2150 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2151 statype = CFG80211_STA_AP_STA; 2152 break; 2153 } 2154 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2155 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2156 else 2157 statype = CFG80211_STA_TDLS_PEER_SETUP; 2158 break; 2159 case NL80211_IFTYPE_AP: 2160 case NL80211_IFTYPE_AP_VLAN: 2161 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2162 statype = CFG80211_STA_AP_CLIENT; 2163 else 2164 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2165 break; 2166 default: 2167 err = -EOPNOTSUPP; 2168 goto out_err; 2169 } 2170 2171 err = cfg80211_check_station_change(wiphy, params, statype); 2172 if (err) 2173 goto out_err; 2174 2175 if (params->vlan && params->vlan != sta->sdata->dev) { 2176 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2177 2178 if (params->vlan->ieee80211_ptr->use_4addr) { 2179 if (vlansdata->u.vlan.sta) { 2180 err = -EBUSY; 2181 goto out_err; 2182 } 2183 2184 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2185 __ieee80211_check_fast_rx_iface(vlansdata); 2186 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2187 } 2188 2189 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2190 sta->sdata->u.vlan.sta) 2191 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 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_rx(sta); 2198 ieee80211_check_fast_xmit(sta); 2199 2200 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2201 ieee80211_vif_inc_num_mcast(sta->sdata); 2202 cfg80211_send_layer2_update(sta->sdata->dev, 2203 sta->sta.addr); 2204 } 2205 } 2206 2207 /* we use sta_info_get_bss() so this might be different */ 2208 if (sdata != sta->sdata) { 2209 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2210 err = sta_apply_parameters(local, sta, params); 2211 mutex_unlock(&sta->sdata->wdev.mtx); 2212 } else { 2213 err = sta_apply_parameters(local, sta, params); 2214 } 2215 if (err) 2216 goto out_err; 2217 2218 mutex_unlock(&local->sta_mtx); 2219 2220 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2221 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2222 ieee80211_recalc_ps(local); 2223 ieee80211_recalc_ps_vif(sdata); 2224 } 2225 2226 return 0; 2227 out_err: 2228 mutex_unlock(&local->sta_mtx); 2229 return err; 2230 } 2231 2232 #ifdef CONFIG_MAC80211_MESH 2233 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2234 const u8 *dst, const u8 *next_hop) 2235 { 2236 struct ieee80211_sub_if_data *sdata; 2237 struct mesh_path *mpath; 2238 struct sta_info *sta; 2239 2240 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2241 2242 rcu_read_lock(); 2243 sta = sta_info_get(sdata, next_hop); 2244 if (!sta) { 2245 rcu_read_unlock(); 2246 return -ENOENT; 2247 } 2248 2249 mpath = mesh_path_add(sdata, dst); 2250 if (IS_ERR(mpath)) { 2251 rcu_read_unlock(); 2252 return PTR_ERR(mpath); 2253 } 2254 2255 mesh_path_fix_nexthop(mpath, sta); 2256 2257 rcu_read_unlock(); 2258 return 0; 2259 } 2260 2261 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2262 const u8 *dst) 2263 { 2264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2265 2266 if (dst) 2267 return mesh_path_del(sdata, dst); 2268 2269 mesh_path_flush_by_iface(sdata); 2270 return 0; 2271 } 2272 2273 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2274 const u8 *dst, const u8 *next_hop) 2275 { 2276 struct ieee80211_sub_if_data *sdata; 2277 struct mesh_path *mpath; 2278 struct sta_info *sta; 2279 2280 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2281 2282 rcu_read_lock(); 2283 2284 sta = sta_info_get(sdata, next_hop); 2285 if (!sta) { 2286 rcu_read_unlock(); 2287 return -ENOENT; 2288 } 2289 2290 mpath = mesh_path_lookup(sdata, dst); 2291 if (!mpath) { 2292 rcu_read_unlock(); 2293 return -ENOENT; 2294 } 2295 2296 mesh_path_fix_nexthop(mpath, sta); 2297 2298 rcu_read_unlock(); 2299 return 0; 2300 } 2301 2302 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2303 struct mpath_info *pinfo) 2304 { 2305 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2306 2307 if (next_hop_sta) 2308 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2309 else 2310 eth_zero_addr(next_hop); 2311 2312 memset(pinfo, 0, sizeof(*pinfo)); 2313 2314 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2315 2316 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2317 MPATH_INFO_SN | 2318 MPATH_INFO_METRIC | 2319 MPATH_INFO_EXPTIME | 2320 MPATH_INFO_DISCOVERY_TIMEOUT | 2321 MPATH_INFO_DISCOVERY_RETRIES | 2322 MPATH_INFO_FLAGS | 2323 MPATH_INFO_HOP_COUNT | 2324 MPATH_INFO_PATH_CHANGE; 2325 2326 pinfo->frame_qlen = mpath->frame_queue.qlen; 2327 pinfo->sn = mpath->sn; 2328 pinfo->metric = mpath->metric; 2329 if (time_before(jiffies, mpath->exp_time)) 2330 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2331 pinfo->discovery_timeout = 2332 jiffies_to_msecs(mpath->discovery_timeout); 2333 pinfo->discovery_retries = mpath->discovery_retries; 2334 if (mpath->flags & MESH_PATH_ACTIVE) 2335 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2336 if (mpath->flags & MESH_PATH_RESOLVING) 2337 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2338 if (mpath->flags & MESH_PATH_SN_VALID) 2339 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2340 if (mpath->flags & MESH_PATH_FIXED) 2341 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2342 if (mpath->flags & MESH_PATH_RESOLVED) 2343 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2344 pinfo->hop_count = mpath->hop_count; 2345 pinfo->path_change_count = mpath->path_change_count; 2346 } 2347 2348 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2349 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2350 2351 { 2352 struct ieee80211_sub_if_data *sdata; 2353 struct mesh_path *mpath; 2354 2355 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2356 2357 rcu_read_lock(); 2358 mpath = mesh_path_lookup(sdata, dst); 2359 if (!mpath) { 2360 rcu_read_unlock(); 2361 return -ENOENT; 2362 } 2363 memcpy(dst, mpath->dst, ETH_ALEN); 2364 mpath_set_pinfo(mpath, next_hop, pinfo); 2365 rcu_read_unlock(); 2366 return 0; 2367 } 2368 2369 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2370 int idx, u8 *dst, u8 *next_hop, 2371 struct mpath_info *pinfo) 2372 { 2373 struct ieee80211_sub_if_data *sdata; 2374 struct mesh_path *mpath; 2375 2376 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2377 2378 rcu_read_lock(); 2379 mpath = mesh_path_lookup_by_idx(sdata, idx); 2380 if (!mpath) { 2381 rcu_read_unlock(); 2382 return -ENOENT; 2383 } 2384 memcpy(dst, mpath->dst, ETH_ALEN); 2385 mpath_set_pinfo(mpath, next_hop, pinfo); 2386 rcu_read_unlock(); 2387 return 0; 2388 } 2389 2390 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2391 struct mpath_info *pinfo) 2392 { 2393 memset(pinfo, 0, sizeof(*pinfo)); 2394 memcpy(mpp, mpath->mpp, ETH_ALEN); 2395 2396 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2397 } 2398 2399 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2400 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2401 2402 { 2403 struct ieee80211_sub_if_data *sdata; 2404 struct mesh_path *mpath; 2405 2406 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2407 2408 rcu_read_lock(); 2409 mpath = mpp_path_lookup(sdata, dst); 2410 if (!mpath) { 2411 rcu_read_unlock(); 2412 return -ENOENT; 2413 } 2414 memcpy(dst, mpath->dst, ETH_ALEN); 2415 mpp_set_pinfo(mpath, mpp, pinfo); 2416 rcu_read_unlock(); 2417 return 0; 2418 } 2419 2420 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2421 int idx, u8 *dst, u8 *mpp, 2422 struct mpath_info *pinfo) 2423 { 2424 struct ieee80211_sub_if_data *sdata; 2425 struct mesh_path *mpath; 2426 2427 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2428 2429 rcu_read_lock(); 2430 mpath = mpp_path_lookup_by_idx(sdata, idx); 2431 if (!mpath) { 2432 rcu_read_unlock(); 2433 return -ENOENT; 2434 } 2435 memcpy(dst, mpath->dst, ETH_ALEN); 2436 mpp_set_pinfo(mpath, mpp, pinfo); 2437 rcu_read_unlock(); 2438 return 0; 2439 } 2440 2441 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2442 struct net_device *dev, 2443 struct mesh_config *conf) 2444 { 2445 struct ieee80211_sub_if_data *sdata; 2446 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2447 2448 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2449 return 0; 2450 } 2451 2452 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2453 { 2454 return (mask >> (parm-1)) & 0x1; 2455 } 2456 2457 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2458 const struct mesh_setup *setup) 2459 { 2460 u8 *new_ie; 2461 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2462 struct ieee80211_sub_if_data, u.mesh); 2463 int i; 2464 2465 /* allocate information elements */ 2466 new_ie = NULL; 2467 2468 if (setup->ie_len) { 2469 new_ie = kmemdup(setup->ie, setup->ie_len, 2470 GFP_KERNEL); 2471 if (!new_ie) 2472 return -ENOMEM; 2473 } 2474 ifmsh->ie_len = setup->ie_len; 2475 ifmsh->ie = new_ie; 2476 2477 /* now copy the rest of the setup parameters */ 2478 ifmsh->mesh_id_len = setup->mesh_id_len; 2479 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2480 ifmsh->mesh_sp_id = setup->sync_method; 2481 ifmsh->mesh_pp_id = setup->path_sel_proto; 2482 ifmsh->mesh_pm_id = setup->path_metric; 2483 ifmsh->user_mpm = setup->user_mpm; 2484 ifmsh->mesh_auth_id = setup->auth_id; 2485 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2486 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2487 if (setup->is_authenticated) 2488 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2489 if (setup->is_secure) 2490 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2491 2492 /* mcast rate setting in Mesh Node */ 2493 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2494 sizeof(setup->mcast_rate)); 2495 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2496 2497 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2498 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2499 2500 sdata->beacon_rate_set = false; 2501 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2502 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2503 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2504 sdata->beacon_rateidx_mask[i] = 2505 setup->beacon_rate.control[i].legacy; 2506 if (sdata->beacon_rateidx_mask[i]) 2507 sdata->beacon_rate_set = true; 2508 } 2509 } 2510 2511 return 0; 2512 } 2513 2514 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2515 struct net_device *dev, u32 mask, 2516 const struct mesh_config *nconf) 2517 { 2518 struct mesh_config *conf; 2519 struct ieee80211_sub_if_data *sdata; 2520 struct ieee80211_if_mesh *ifmsh; 2521 2522 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2523 ifmsh = &sdata->u.mesh; 2524 2525 /* Set the config options which we are interested in setting */ 2526 conf = &(sdata->u.mesh.mshcfg); 2527 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2528 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2529 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2530 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2531 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2532 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2533 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2534 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2535 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2536 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2537 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2538 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2539 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2540 conf->element_ttl = nconf->element_ttl; 2541 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2542 if (ifmsh->user_mpm) 2543 return -EBUSY; 2544 conf->auto_open_plinks = nconf->auto_open_plinks; 2545 } 2546 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2547 conf->dot11MeshNbrOffsetMaxNeighbor = 2548 nconf->dot11MeshNbrOffsetMaxNeighbor; 2549 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2550 conf->dot11MeshHWMPmaxPREQretries = 2551 nconf->dot11MeshHWMPmaxPREQretries; 2552 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2553 conf->path_refresh_time = nconf->path_refresh_time; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2555 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2556 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2557 conf->dot11MeshHWMPactivePathTimeout = 2558 nconf->dot11MeshHWMPactivePathTimeout; 2559 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2560 conf->dot11MeshHWMPpreqMinInterval = 2561 nconf->dot11MeshHWMPpreqMinInterval; 2562 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2563 conf->dot11MeshHWMPperrMinInterval = 2564 nconf->dot11MeshHWMPperrMinInterval; 2565 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2566 mask)) 2567 conf->dot11MeshHWMPnetDiameterTraversalTime = 2568 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2569 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2570 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2571 ieee80211_mesh_root_setup(ifmsh); 2572 } 2573 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2574 /* our current gate announcement implementation rides on root 2575 * announcements, so require this ifmsh to also be a root node 2576 * */ 2577 if (nconf->dot11MeshGateAnnouncementProtocol && 2578 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2579 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2580 ieee80211_mesh_root_setup(ifmsh); 2581 } 2582 conf->dot11MeshGateAnnouncementProtocol = 2583 nconf->dot11MeshGateAnnouncementProtocol; 2584 } 2585 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2586 conf->dot11MeshHWMPRannInterval = 2587 nconf->dot11MeshHWMPRannInterval; 2588 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2589 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2590 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2591 /* our RSSI threshold implementation is supported only for 2592 * devices that report signal in dBm. 2593 */ 2594 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2595 return -ENOTSUPP; 2596 conf->rssi_threshold = nconf->rssi_threshold; 2597 } 2598 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2599 conf->ht_opmode = nconf->ht_opmode; 2600 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2601 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2602 BSS_CHANGED_HT); 2603 } 2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2605 conf->dot11MeshHWMPactivePathToRootTimeout = 2606 nconf->dot11MeshHWMPactivePathToRootTimeout; 2607 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2608 conf->dot11MeshHWMProotInterval = 2609 nconf->dot11MeshHWMProotInterval; 2610 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2611 conf->dot11MeshHWMPconfirmationInterval = 2612 nconf->dot11MeshHWMPconfirmationInterval; 2613 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2614 conf->power_mode = nconf->power_mode; 2615 ieee80211_mps_local_status_update(sdata); 2616 } 2617 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2618 conf->dot11MeshAwakeWindowDuration = 2619 nconf->dot11MeshAwakeWindowDuration; 2620 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2621 conf->plink_timeout = nconf->plink_timeout; 2622 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2623 conf->dot11MeshConnectedToMeshGate = 2624 nconf->dot11MeshConnectedToMeshGate; 2625 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2626 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2627 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2628 conf->dot11MeshConnectedToAuthServer = 2629 nconf->dot11MeshConnectedToAuthServer; 2630 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2631 return 0; 2632 } 2633 2634 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2635 const struct mesh_config *conf, 2636 const struct mesh_setup *setup) 2637 { 2638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2639 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2640 int err; 2641 2642 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2643 err = copy_mesh_setup(ifmsh, setup); 2644 if (err) 2645 return err; 2646 2647 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2648 2649 /* can mesh use other SMPS modes? */ 2650 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2651 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2652 2653 mutex_lock(&sdata->local->mtx); 2654 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2655 IEEE80211_CHANCTX_SHARED); 2656 mutex_unlock(&sdata->local->mtx); 2657 if (err) 2658 return err; 2659 2660 return ieee80211_start_mesh(sdata); 2661 } 2662 2663 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2664 { 2665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2666 2667 ieee80211_stop_mesh(sdata); 2668 mutex_lock(&sdata->local->mtx); 2669 ieee80211_link_release_channel(&sdata->deflink); 2670 kfree(sdata->u.mesh.ie); 2671 mutex_unlock(&sdata->local->mtx); 2672 2673 return 0; 2674 } 2675 #endif 2676 2677 static int ieee80211_change_bss(struct wiphy *wiphy, 2678 struct net_device *dev, 2679 struct bss_parameters *params) 2680 { 2681 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2682 struct ieee80211_link_data *link; 2683 struct ieee80211_supported_band *sband; 2684 u64 changed = 0; 2685 2686 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2687 if (IS_ERR(link)) 2688 return PTR_ERR(link); 2689 2690 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2691 return -ENOENT; 2692 2693 sband = ieee80211_get_link_sband(link); 2694 if (!sband) 2695 return -EINVAL; 2696 2697 if (params->basic_rates) { 2698 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2699 wiphy->bands[sband->band], 2700 params->basic_rates, 2701 params->basic_rates_len, 2702 &link->conf->basic_rates)) 2703 return -EINVAL; 2704 changed |= BSS_CHANGED_BASIC_RATES; 2705 ieee80211_check_rate_mask(link); 2706 } 2707 2708 if (params->use_cts_prot >= 0) { 2709 link->conf->use_cts_prot = params->use_cts_prot; 2710 changed |= BSS_CHANGED_ERP_CTS_PROT; 2711 } 2712 if (params->use_short_preamble >= 0) { 2713 link->conf->use_short_preamble = params->use_short_preamble; 2714 changed |= BSS_CHANGED_ERP_PREAMBLE; 2715 } 2716 2717 if (!link->conf->use_short_slot && 2718 (sband->band == NL80211_BAND_5GHZ || 2719 sband->band == NL80211_BAND_6GHZ)) { 2720 link->conf->use_short_slot = true; 2721 changed |= BSS_CHANGED_ERP_SLOT; 2722 } 2723 2724 if (params->use_short_slot_time >= 0) { 2725 link->conf->use_short_slot = params->use_short_slot_time; 2726 changed |= BSS_CHANGED_ERP_SLOT; 2727 } 2728 2729 if (params->ap_isolate >= 0) { 2730 if (params->ap_isolate) 2731 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2732 else 2733 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2734 ieee80211_check_fast_rx_iface(sdata); 2735 } 2736 2737 if (params->ht_opmode >= 0) { 2738 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2739 changed |= BSS_CHANGED_HT; 2740 } 2741 2742 if (params->p2p_ctwindow >= 0) { 2743 link->conf->p2p_noa_attr.oppps_ctwindow &= 2744 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2745 link->conf->p2p_noa_attr.oppps_ctwindow |= 2746 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2747 changed |= BSS_CHANGED_P2P_PS; 2748 } 2749 2750 if (params->p2p_opp_ps > 0) { 2751 link->conf->p2p_noa_attr.oppps_ctwindow |= 2752 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2753 changed |= BSS_CHANGED_P2P_PS; 2754 } else if (params->p2p_opp_ps == 0) { 2755 link->conf->p2p_noa_attr.oppps_ctwindow &= 2756 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2757 changed |= BSS_CHANGED_P2P_PS; 2758 } 2759 2760 ieee80211_link_info_change_notify(sdata, link, changed); 2761 2762 return 0; 2763 } 2764 2765 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2766 struct net_device *dev, 2767 struct ieee80211_txq_params *params) 2768 { 2769 struct ieee80211_local *local = wiphy_priv(wiphy); 2770 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2771 struct ieee80211_link_data *link = 2772 ieee80211_link_or_deflink(sdata, params->link_id, true); 2773 struct ieee80211_tx_queue_params p; 2774 2775 if (!local->ops->conf_tx) 2776 return -EOPNOTSUPP; 2777 2778 if (local->hw.queues < IEEE80211_NUM_ACS) 2779 return -EOPNOTSUPP; 2780 2781 if (IS_ERR(link)) 2782 return PTR_ERR(link); 2783 2784 memset(&p, 0, sizeof(p)); 2785 p.aifs = params->aifs; 2786 p.cw_max = params->cwmax; 2787 p.cw_min = params->cwmin; 2788 p.txop = params->txop; 2789 2790 /* 2791 * Setting tx queue params disables u-apsd because it's only 2792 * called in master mode. 2793 */ 2794 p.uapsd = false; 2795 2796 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2797 2798 link->tx_conf[params->ac] = p; 2799 if (drv_conf_tx(local, link, params->ac, &p)) { 2800 wiphy_debug(local->hw.wiphy, 2801 "failed to set TX queue parameters for AC %d\n", 2802 params->ac); 2803 return -EINVAL; 2804 } 2805 2806 ieee80211_link_info_change_notify(sdata, link, 2807 BSS_CHANGED_QOS); 2808 2809 return 0; 2810 } 2811 2812 #ifdef CONFIG_PM 2813 static int ieee80211_suspend(struct wiphy *wiphy, 2814 struct cfg80211_wowlan *wowlan) 2815 { 2816 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2817 } 2818 2819 static int ieee80211_resume(struct wiphy *wiphy) 2820 { 2821 return __ieee80211_resume(wiphy_priv(wiphy)); 2822 } 2823 #else 2824 #define ieee80211_suspend NULL 2825 #define ieee80211_resume NULL 2826 #endif 2827 2828 static int ieee80211_scan(struct wiphy *wiphy, 2829 struct cfg80211_scan_request *req) 2830 { 2831 struct ieee80211_sub_if_data *sdata; 2832 2833 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2834 2835 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2836 case NL80211_IFTYPE_STATION: 2837 case NL80211_IFTYPE_ADHOC: 2838 case NL80211_IFTYPE_MESH_POINT: 2839 case NL80211_IFTYPE_P2P_CLIENT: 2840 case NL80211_IFTYPE_P2P_DEVICE: 2841 break; 2842 case NL80211_IFTYPE_P2P_GO: 2843 if (sdata->local->ops->hw_scan) 2844 break; 2845 /* 2846 * FIXME: implement NoA while scanning in software, 2847 * for now fall through to allow scanning only when 2848 * beaconing hasn't been configured yet 2849 */ 2850 fallthrough; 2851 case NL80211_IFTYPE_AP: 2852 /* 2853 * If the scan has been forced (and the driver supports 2854 * forcing), don't care about being beaconing already. 2855 * This will create problems to the attached stations (e.g. all 2856 * the frames sent while scanning on other channel will be 2857 * lost) 2858 */ 2859 if (sdata->deflink.u.ap.beacon && 2860 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2861 !(req->flags & NL80211_SCAN_FLAG_AP))) 2862 return -EOPNOTSUPP; 2863 break; 2864 case NL80211_IFTYPE_NAN: 2865 default: 2866 return -EOPNOTSUPP; 2867 } 2868 2869 return ieee80211_request_scan(sdata, req); 2870 } 2871 2872 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2873 { 2874 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2875 } 2876 2877 static int 2878 ieee80211_sched_scan_start(struct wiphy *wiphy, 2879 struct net_device *dev, 2880 struct cfg80211_sched_scan_request *req) 2881 { 2882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2883 2884 if (!sdata->local->ops->sched_scan_start) 2885 return -EOPNOTSUPP; 2886 2887 return ieee80211_request_sched_scan_start(sdata, req); 2888 } 2889 2890 static int 2891 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2892 u64 reqid) 2893 { 2894 struct ieee80211_local *local = wiphy_priv(wiphy); 2895 2896 if (!local->ops->sched_scan_stop) 2897 return -EOPNOTSUPP; 2898 2899 return ieee80211_request_sched_scan_stop(local); 2900 } 2901 2902 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2903 struct cfg80211_auth_request *req) 2904 { 2905 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2906 } 2907 2908 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2909 struct cfg80211_assoc_request *req) 2910 { 2911 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2912 } 2913 2914 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2915 struct cfg80211_deauth_request *req) 2916 { 2917 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2918 } 2919 2920 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2921 struct cfg80211_disassoc_request *req) 2922 { 2923 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2924 } 2925 2926 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2927 struct cfg80211_ibss_params *params) 2928 { 2929 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2930 } 2931 2932 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2933 { 2934 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2935 } 2936 2937 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2938 struct ocb_setup *setup) 2939 { 2940 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2941 } 2942 2943 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2944 { 2945 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2946 } 2947 2948 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2949 int rate[NUM_NL80211_BANDS]) 2950 { 2951 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2952 2953 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2954 sizeof(int) * NUM_NL80211_BANDS); 2955 2956 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2957 BSS_CHANGED_MCAST_RATE); 2958 2959 return 0; 2960 } 2961 2962 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2963 { 2964 struct ieee80211_local *local = wiphy_priv(wiphy); 2965 int err; 2966 2967 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2968 ieee80211_check_fast_xmit_all(local); 2969 2970 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2971 2972 if (err) { 2973 ieee80211_check_fast_xmit_all(local); 2974 return err; 2975 } 2976 } 2977 2978 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2979 (changed & WIPHY_PARAM_DYN_ACK)) { 2980 s16 coverage_class; 2981 2982 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2983 wiphy->coverage_class : -1; 2984 err = drv_set_coverage_class(local, coverage_class); 2985 2986 if (err) 2987 return err; 2988 } 2989 2990 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2991 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2992 2993 if (err) 2994 return err; 2995 } 2996 2997 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2998 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2999 return -EINVAL; 3000 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3001 } 3002 if (changed & WIPHY_PARAM_RETRY_LONG) { 3003 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3004 return -EINVAL; 3005 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3006 } 3007 if (changed & 3008 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3009 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3010 3011 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3012 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3013 WIPHY_PARAM_TXQ_QUANTUM)) 3014 ieee80211_txq_set_params(local); 3015 3016 return 0; 3017 } 3018 3019 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3020 struct wireless_dev *wdev, 3021 enum nl80211_tx_power_setting type, int mbm) 3022 { 3023 struct ieee80211_local *local = wiphy_priv(wiphy); 3024 struct ieee80211_sub_if_data *sdata; 3025 enum nl80211_tx_power_setting txp_type = type; 3026 bool update_txp_type = false; 3027 bool has_monitor = false; 3028 3029 if (wdev) { 3030 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3031 3032 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3033 sdata = wiphy_dereference(local->hw.wiphy, 3034 local->monitor_sdata); 3035 if (!sdata) 3036 return -EOPNOTSUPP; 3037 } 3038 3039 switch (type) { 3040 case NL80211_TX_POWER_AUTOMATIC: 3041 sdata->deflink.user_power_level = 3042 IEEE80211_UNSET_POWER_LEVEL; 3043 txp_type = NL80211_TX_POWER_LIMITED; 3044 break; 3045 case NL80211_TX_POWER_LIMITED: 3046 case NL80211_TX_POWER_FIXED: 3047 if (mbm < 0 || (mbm % 100)) 3048 return -EOPNOTSUPP; 3049 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3050 break; 3051 } 3052 3053 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3054 update_txp_type = true; 3055 sdata->vif.bss_conf.txpower_type = txp_type; 3056 } 3057 3058 ieee80211_recalc_txpower(sdata, update_txp_type); 3059 3060 return 0; 3061 } 3062 3063 switch (type) { 3064 case NL80211_TX_POWER_AUTOMATIC: 3065 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3066 txp_type = NL80211_TX_POWER_LIMITED; 3067 break; 3068 case NL80211_TX_POWER_LIMITED: 3069 case NL80211_TX_POWER_FIXED: 3070 if (mbm < 0 || (mbm % 100)) 3071 return -EOPNOTSUPP; 3072 local->user_power_level = MBM_TO_DBM(mbm); 3073 break; 3074 } 3075 3076 mutex_lock(&local->iflist_mtx); 3077 list_for_each_entry(sdata, &local->interfaces, list) { 3078 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3079 has_monitor = true; 3080 continue; 3081 } 3082 sdata->deflink.user_power_level = local->user_power_level; 3083 if (txp_type != sdata->vif.bss_conf.txpower_type) 3084 update_txp_type = true; 3085 sdata->vif.bss_conf.txpower_type = txp_type; 3086 } 3087 list_for_each_entry(sdata, &local->interfaces, list) { 3088 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3089 continue; 3090 ieee80211_recalc_txpower(sdata, update_txp_type); 3091 } 3092 mutex_unlock(&local->iflist_mtx); 3093 3094 if (has_monitor) { 3095 sdata = wiphy_dereference(local->hw.wiphy, 3096 local->monitor_sdata); 3097 if (sdata) { 3098 sdata->deflink.user_power_level = local->user_power_level; 3099 if (txp_type != sdata->vif.bss_conf.txpower_type) 3100 update_txp_type = true; 3101 sdata->vif.bss_conf.txpower_type = txp_type; 3102 3103 ieee80211_recalc_txpower(sdata, update_txp_type); 3104 } 3105 } 3106 3107 return 0; 3108 } 3109 3110 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3111 struct wireless_dev *wdev, 3112 int *dbm) 3113 { 3114 struct ieee80211_local *local = wiphy_priv(wiphy); 3115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3116 3117 if (local->ops->get_txpower) 3118 return drv_get_txpower(local, sdata, dbm); 3119 3120 if (!local->use_chanctx) 3121 *dbm = local->hw.conf.power_level; 3122 else 3123 *dbm = sdata->vif.bss_conf.txpower; 3124 3125 /* INT_MIN indicates no power level was set yet */ 3126 if (*dbm == INT_MIN) 3127 return -EINVAL; 3128 3129 return 0; 3130 } 3131 3132 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3133 { 3134 struct ieee80211_local *local = wiphy_priv(wiphy); 3135 3136 drv_rfkill_poll(local); 3137 } 3138 3139 #ifdef CONFIG_NL80211_TESTMODE 3140 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3141 struct wireless_dev *wdev, 3142 void *data, int len) 3143 { 3144 struct ieee80211_local *local = wiphy_priv(wiphy); 3145 struct ieee80211_vif *vif = NULL; 3146 3147 if (!local->ops->testmode_cmd) 3148 return -EOPNOTSUPP; 3149 3150 if (wdev) { 3151 struct ieee80211_sub_if_data *sdata; 3152 3153 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3154 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3155 vif = &sdata->vif; 3156 } 3157 3158 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3159 } 3160 3161 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3162 struct sk_buff *skb, 3163 struct netlink_callback *cb, 3164 void *data, int len) 3165 { 3166 struct ieee80211_local *local = wiphy_priv(wiphy); 3167 3168 if (!local->ops->testmode_dump) 3169 return -EOPNOTSUPP; 3170 3171 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3172 } 3173 #endif 3174 3175 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3176 struct ieee80211_link_data *link, 3177 enum ieee80211_smps_mode smps_mode) 3178 { 3179 const u8 *ap; 3180 enum ieee80211_smps_mode old_req; 3181 int err; 3182 struct sta_info *sta; 3183 bool tdls_peer_found = false; 3184 3185 lockdep_assert_held(&sdata->wdev.mtx); 3186 3187 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3188 return -EINVAL; 3189 3190 old_req = link->u.mgd.req_smps; 3191 link->u.mgd.req_smps = smps_mode; 3192 3193 if (old_req == smps_mode && 3194 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3195 return 0; 3196 3197 /* 3198 * If not associated, or current association is not an HT 3199 * association, there's no need to do anything, just store 3200 * the new value until we associate. 3201 */ 3202 if (!sdata->u.mgd.associated || 3203 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3204 return 0; 3205 3206 ap = link->u.mgd.bssid; 3207 3208 rcu_read_lock(); 3209 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3210 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3211 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3212 continue; 3213 3214 tdls_peer_found = true; 3215 break; 3216 } 3217 rcu_read_unlock(); 3218 3219 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3220 if (tdls_peer_found || !sdata->u.mgd.powersave) 3221 smps_mode = IEEE80211_SMPS_OFF; 3222 else 3223 smps_mode = IEEE80211_SMPS_DYNAMIC; 3224 } 3225 3226 /* send SM PS frame to AP */ 3227 err = ieee80211_send_smps_action(sdata, smps_mode, 3228 ap, ap); 3229 if (err) 3230 link->u.mgd.req_smps = old_req; 3231 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3232 ieee80211_teardown_tdls_peers(sdata); 3233 3234 return err; 3235 } 3236 3237 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3238 bool enabled, int timeout) 3239 { 3240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3241 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3242 unsigned int link_id; 3243 3244 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3245 return -EOPNOTSUPP; 3246 3247 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3248 return -EOPNOTSUPP; 3249 3250 if (enabled == sdata->u.mgd.powersave && 3251 timeout == local->dynamic_ps_forced_timeout) 3252 return 0; 3253 3254 sdata->u.mgd.powersave = enabled; 3255 local->dynamic_ps_forced_timeout = timeout; 3256 3257 /* no change, but if automatic follow powersave */ 3258 sdata_lock(sdata); 3259 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3260 struct ieee80211_link_data *link; 3261 3262 link = sdata_dereference(sdata->link[link_id], sdata); 3263 3264 if (!link) 3265 continue; 3266 __ieee80211_request_smps_mgd(sdata, link, 3267 link->u.mgd.req_smps); 3268 } 3269 sdata_unlock(sdata); 3270 3271 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3272 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3273 3274 ieee80211_recalc_ps(local); 3275 ieee80211_recalc_ps_vif(sdata); 3276 ieee80211_check_fast_rx_iface(sdata); 3277 3278 return 0; 3279 } 3280 3281 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3282 struct net_device *dev, 3283 s32 rssi_thold, u32 rssi_hyst) 3284 { 3285 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3286 struct ieee80211_vif *vif = &sdata->vif; 3287 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3288 3289 if (rssi_thold == bss_conf->cqm_rssi_thold && 3290 rssi_hyst == bss_conf->cqm_rssi_hyst) 3291 return 0; 3292 3293 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3294 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3295 return -EOPNOTSUPP; 3296 3297 bss_conf->cqm_rssi_thold = rssi_thold; 3298 bss_conf->cqm_rssi_hyst = rssi_hyst; 3299 bss_conf->cqm_rssi_low = 0; 3300 bss_conf->cqm_rssi_high = 0; 3301 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3302 3303 /* tell the driver upon association, unless already associated */ 3304 if (sdata->u.mgd.associated && 3305 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3306 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3307 BSS_CHANGED_CQM); 3308 3309 return 0; 3310 } 3311 3312 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3313 struct net_device *dev, 3314 s32 rssi_low, s32 rssi_high) 3315 { 3316 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3317 struct ieee80211_vif *vif = &sdata->vif; 3318 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3319 3320 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3321 return -EOPNOTSUPP; 3322 3323 bss_conf->cqm_rssi_low = rssi_low; 3324 bss_conf->cqm_rssi_high = rssi_high; 3325 bss_conf->cqm_rssi_thold = 0; 3326 bss_conf->cqm_rssi_hyst = 0; 3327 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3328 3329 /* tell the driver upon association, unless already associated */ 3330 if (sdata->u.mgd.associated && 3331 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3332 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3333 BSS_CHANGED_CQM); 3334 3335 return 0; 3336 } 3337 3338 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3339 struct net_device *dev, 3340 unsigned int link_id, 3341 const u8 *addr, 3342 const struct cfg80211_bitrate_mask *mask) 3343 { 3344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3345 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3346 int i, ret; 3347 3348 if (!ieee80211_sdata_running(sdata)) 3349 return -ENETDOWN; 3350 3351 /* 3352 * If active validate the setting and reject it if it doesn't leave 3353 * at least one basic rate usable, since we really have to be able 3354 * to send something, and if we're an AP we have to be able to do 3355 * so at a basic rate so that all clients can receive it. 3356 */ 3357 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3358 sdata->vif.bss_conf.chandef.chan) { 3359 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3360 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3361 3362 if (!(mask->control[band].legacy & basic_rates)) 3363 return -EINVAL; 3364 } 3365 3366 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3367 ret = drv_set_bitrate_mask(local, sdata, mask); 3368 if (ret) 3369 return ret; 3370 } 3371 3372 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3373 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3374 int j; 3375 3376 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3377 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3378 sizeof(mask->control[i].ht_mcs)); 3379 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3380 mask->control[i].vht_mcs, 3381 sizeof(mask->control[i].vht_mcs)); 3382 3383 sdata->rc_has_mcs_mask[i] = false; 3384 sdata->rc_has_vht_mcs_mask[i] = false; 3385 if (!sband) 3386 continue; 3387 3388 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3389 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3390 sdata->rc_has_mcs_mask[i] = true; 3391 break; 3392 } 3393 } 3394 3395 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3396 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3397 sdata->rc_has_vht_mcs_mask[i] = true; 3398 break; 3399 } 3400 } 3401 } 3402 3403 return 0; 3404 } 3405 3406 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3407 struct net_device *dev, 3408 struct cfg80211_chan_def *chandef, 3409 u32 cac_time_ms) 3410 { 3411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3412 struct ieee80211_local *local = sdata->local; 3413 int err; 3414 3415 mutex_lock(&local->mtx); 3416 if (!list_empty(&local->roc_list) || local->scanning) { 3417 err = -EBUSY; 3418 goto out_unlock; 3419 } 3420 3421 /* whatever, but channel contexts should not complain about that one */ 3422 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3423 sdata->deflink.needed_rx_chains = local->rx_chains; 3424 3425 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3426 IEEE80211_CHANCTX_SHARED); 3427 if (err) 3428 goto out_unlock; 3429 3430 ieee80211_queue_delayed_work(&sdata->local->hw, 3431 &sdata->deflink.dfs_cac_timer_work, 3432 msecs_to_jiffies(cac_time_ms)); 3433 3434 out_unlock: 3435 mutex_unlock(&local->mtx); 3436 return err; 3437 } 3438 3439 static void ieee80211_end_cac(struct wiphy *wiphy, 3440 struct net_device *dev) 3441 { 3442 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3443 struct ieee80211_local *local = sdata->local; 3444 3445 mutex_lock(&local->mtx); 3446 list_for_each_entry(sdata, &local->interfaces, list) { 3447 /* it might be waiting for the local->mtx, but then 3448 * by the time it gets it, sdata->wdev.cac_started 3449 * will no longer be true 3450 */ 3451 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3452 3453 if (sdata->wdev.cac_started) { 3454 ieee80211_link_release_channel(&sdata->deflink); 3455 sdata->wdev.cac_started = false; 3456 } 3457 } 3458 mutex_unlock(&local->mtx); 3459 } 3460 3461 static struct cfg80211_beacon_data * 3462 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3463 { 3464 struct cfg80211_beacon_data *new_beacon; 3465 u8 *pos; 3466 int len; 3467 3468 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3469 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3470 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3471 3472 if (beacon->mbssid_ies) 3473 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3474 beacon->rnr_ies, 3475 beacon->mbssid_ies->cnt); 3476 3477 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3478 if (!new_beacon) 3479 return NULL; 3480 3481 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3482 new_beacon->mbssid_ies = 3483 kzalloc(struct_size(new_beacon->mbssid_ies, 3484 elem, beacon->mbssid_ies->cnt), 3485 GFP_KERNEL); 3486 if (!new_beacon->mbssid_ies) { 3487 kfree(new_beacon); 3488 return NULL; 3489 } 3490 3491 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3492 new_beacon->rnr_ies = 3493 kzalloc(struct_size(new_beacon->rnr_ies, 3494 elem, beacon->rnr_ies->cnt), 3495 GFP_KERNEL); 3496 if (!new_beacon->rnr_ies) { 3497 kfree(new_beacon->mbssid_ies); 3498 kfree(new_beacon); 3499 return NULL; 3500 } 3501 } 3502 } 3503 3504 pos = (u8 *)(new_beacon + 1); 3505 if (beacon->head_len) { 3506 new_beacon->head_len = beacon->head_len; 3507 new_beacon->head = pos; 3508 memcpy(pos, beacon->head, beacon->head_len); 3509 pos += beacon->head_len; 3510 } 3511 if (beacon->tail_len) { 3512 new_beacon->tail_len = beacon->tail_len; 3513 new_beacon->tail = pos; 3514 memcpy(pos, beacon->tail, beacon->tail_len); 3515 pos += beacon->tail_len; 3516 } 3517 if (beacon->beacon_ies_len) { 3518 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3519 new_beacon->beacon_ies = pos; 3520 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3521 pos += beacon->beacon_ies_len; 3522 } 3523 if (beacon->proberesp_ies_len) { 3524 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3525 new_beacon->proberesp_ies = pos; 3526 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3527 pos += beacon->proberesp_ies_len; 3528 } 3529 if (beacon->assocresp_ies_len) { 3530 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3531 new_beacon->assocresp_ies = pos; 3532 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3533 pos += beacon->assocresp_ies_len; 3534 } 3535 if (beacon->probe_resp_len) { 3536 new_beacon->probe_resp_len = beacon->probe_resp_len; 3537 new_beacon->probe_resp = pos; 3538 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3539 pos += beacon->probe_resp_len; 3540 } 3541 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3542 pos += ieee80211_copy_mbssid_beacon(pos, 3543 new_beacon->mbssid_ies, 3544 beacon->mbssid_ies); 3545 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3546 pos += ieee80211_copy_rnr_beacon(pos, 3547 new_beacon->rnr_ies, 3548 beacon->rnr_ies); 3549 } 3550 3551 /* might copy -1, meaning no changes requested */ 3552 new_beacon->ftm_responder = beacon->ftm_responder; 3553 if (beacon->lci) { 3554 new_beacon->lci_len = beacon->lci_len; 3555 new_beacon->lci = pos; 3556 memcpy(pos, beacon->lci, beacon->lci_len); 3557 pos += beacon->lci_len; 3558 } 3559 if (beacon->civicloc) { 3560 new_beacon->civicloc_len = beacon->civicloc_len; 3561 new_beacon->civicloc = pos; 3562 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3563 pos += beacon->civicloc_len; 3564 } 3565 3566 return new_beacon; 3567 } 3568 3569 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3570 { 3571 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3572 struct ieee80211_local *local = sdata->local; 3573 3574 rcu_read_lock(); 3575 3576 if (vif->mbssid_tx_vif == vif) { 3577 /* Trigger ieee80211_csa_finish() on the non-transmitting 3578 * interfaces when channel switch is received on 3579 * transmitting interface 3580 */ 3581 struct ieee80211_sub_if_data *iter; 3582 3583 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3584 if (!ieee80211_sdata_running(iter)) 3585 continue; 3586 3587 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3588 continue; 3589 3590 ieee80211_queue_work(&iter->local->hw, 3591 &iter->deflink.csa_finalize_work); 3592 } 3593 } 3594 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3595 3596 rcu_read_unlock(); 3597 } 3598 EXPORT_SYMBOL(ieee80211_csa_finish); 3599 3600 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3601 { 3602 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3603 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3604 struct ieee80211_local *local = sdata->local; 3605 3606 sdata->deflink.csa_block_tx = block_tx; 3607 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3608 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3609 } 3610 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3611 3612 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3613 u64 *changed) 3614 { 3615 int err; 3616 3617 switch (sdata->vif.type) { 3618 case NL80211_IFTYPE_AP: 3619 if (!sdata->deflink.u.ap.next_beacon) 3620 return -EINVAL; 3621 3622 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3623 sdata->deflink.u.ap.next_beacon, 3624 NULL, NULL, changed); 3625 ieee80211_free_next_beacon(&sdata->deflink); 3626 3627 if (err < 0) 3628 return err; 3629 break; 3630 case NL80211_IFTYPE_ADHOC: 3631 err = ieee80211_ibss_finish_csa(sdata, changed); 3632 if (err < 0) 3633 return err; 3634 break; 3635 #ifdef CONFIG_MAC80211_MESH 3636 case NL80211_IFTYPE_MESH_POINT: 3637 err = ieee80211_mesh_finish_csa(sdata, changed); 3638 if (err < 0) 3639 return err; 3640 break; 3641 #endif 3642 default: 3643 WARN_ON(1); 3644 return -EINVAL; 3645 } 3646 3647 return 0; 3648 } 3649 3650 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3651 { 3652 struct ieee80211_local *local = sdata->local; 3653 u64 changed = 0; 3654 int err; 3655 3656 sdata_assert_lock(sdata); 3657 lockdep_assert_held(&local->mtx); 3658 lockdep_assert_held(&local->chanctx_mtx); 3659 3660 /* 3661 * using reservation isn't immediate as it may be deferred until later 3662 * with multi-vif. once reservation is complete it will re-schedule the 3663 * work with no reserved_chanctx so verify chandef to check if it 3664 * completed successfully 3665 */ 3666 3667 if (sdata->deflink.reserved_chanctx) { 3668 /* 3669 * with multi-vif csa driver may call ieee80211_csa_finish() 3670 * many times while waiting for other interfaces to use their 3671 * reservations 3672 */ 3673 if (sdata->deflink.reserved_ready) 3674 return 0; 3675 3676 return ieee80211_link_use_reserved_context(&sdata->deflink); 3677 } 3678 3679 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3680 &sdata->deflink.csa_chandef)) 3681 return -EINVAL; 3682 3683 sdata->vif.bss_conf.csa_active = false; 3684 3685 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3686 if (err) 3687 return err; 3688 3689 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3690 sdata->vif.bss_conf.eht_puncturing = 3691 sdata->vif.bss_conf.csa_punct_bitmap; 3692 changed |= BSS_CHANGED_EHT_PUNCTURING; 3693 } 3694 3695 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3696 3697 if (sdata->deflink.csa_block_tx) { 3698 ieee80211_wake_vif_queues(local, sdata, 3699 IEEE80211_QUEUE_STOP_REASON_CSA); 3700 sdata->deflink.csa_block_tx = false; 3701 } 3702 3703 err = drv_post_channel_switch(sdata); 3704 if (err) 3705 return err; 3706 3707 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3708 sdata->vif.bss_conf.eht_puncturing); 3709 3710 return 0; 3711 } 3712 3713 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3714 { 3715 if (__ieee80211_csa_finalize(sdata)) { 3716 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3717 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3718 GFP_KERNEL); 3719 } 3720 } 3721 3722 void ieee80211_csa_finalize_work(struct work_struct *work) 3723 { 3724 struct ieee80211_sub_if_data *sdata = 3725 container_of(work, struct ieee80211_sub_if_data, 3726 deflink.csa_finalize_work); 3727 struct ieee80211_local *local = sdata->local; 3728 3729 sdata_lock(sdata); 3730 mutex_lock(&local->mtx); 3731 mutex_lock(&local->chanctx_mtx); 3732 3733 /* AP might have been stopped while waiting for the lock. */ 3734 if (!sdata->vif.bss_conf.csa_active) 3735 goto unlock; 3736 3737 if (!ieee80211_sdata_running(sdata)) 3738 goto unlock; 3739 3740 ieee80211_csa_finalize(sdata); 3741 3742 unlock: 3743 mutex_unlock(&local->chanctx_mtx); 3744 mutex_unlock(&local->mtx); 3745 sdata_unlock(sdata); 3746 } 3747 3748 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3749 struct cfg80211_csa_settings *params, 3750 u64 *changed) 3751 { 3752 struct ieee80211_csa_settings csa = {}; 3753 int err; 3754 3755 switch (sdata->vif.type) { 3756 case NL80211_IFTYPE_AP: 3757 sdata->deflink.u.ap.next_beacon = 3758 cfg80211_beacon_dup(¶ms->beacon_after); 3759 if (!sdata->deflink.u.ap.next_beacon) 3760 return -ENOMEM; 3761 3762 /* 3763 * With a count of 0, we don't have to wait for any 3764 * TBTT before switching, so complete the CSA 3765 * immediately. In theory, with a count == 1 we 3766 * should delay the switch until just before the next 3767 * TBTT, but that would complicate things so we switch 3768 * immediately too. If we would delay the switch 3769 * until the next TBTT, we would have to set the probe 3770 * response here. 3771 * 3772 * TODO: A channel switch with count <= 1 without 3773 * sending a CSA action frame is kind of useless, 3774 * because the clients won't know we're changing 3775 * channels. The action frame must be implemented 3776 * either here or in the userspace. 3777 */ 3778 if (params->count <= 1) 3779 break; 3780 3781 if ((params->n_counter_offsets_beacon > 3782 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3783 (params->n_counter_offsets_presp > 3784 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3785 ieee80211_free_next_beacon(&sdata->deflink); 3786 return -EINVAL; 3787 } 3788 3789 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3790 csa.counter_offsets_presp = params->counter_offsets_presp; 3791 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3792 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3793 csa.count = params->count; 3794 3795 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3796 ¶ms->beacon_csa, &csa, 3797 NULL, changed); 3798 if (err < 0) { 3799 ieee80211_free_next_beacon(&sdata->deflink); 3800 return err; 3801 } 3802 3803 break; 3804 case NL80211_IFTYPE_ADHOC: 3805 if (!sdata->vif.cfg.ibss_joined) 3806 return -EINVAL; 3807 3808 if (params->chandef.width != sdata->u.ibss.chandef.width) 3809 return -EINVAL; 3810 3811 switch (params->chandef.width) { 3812 case NL80211_CHAN_WIDTH_40: 3813 if (cfg80211_get_chandef_type(¶ms->chandef) != 3814 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3815 return -EINVAL; 3816 break; 3817 case NL80211_CHAN_WIDTH_5: 3818 case NL80211_CHAN_WIDTH_10: 3819 case NL80211_CHAN_WIDTH_20_NOHT: 3820 case NL80211_CHAN_WIDTH_20: 3821 break; 3822 default: 3823 return -EINVAL; 3824 } 3825 3826 /* changes into another band are not supported */ 3827 if (sdata->u.ibss.chandef.chan->band != 3828 params->chandef.chan->band) 3829 return -EINVAL; 3830 3831 /* see comments in the NL80211_IFTYPE_AP block */ 3832 if (params->count > 1) { 3833 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3834 if (err < 0) 3835 return err; 3836 } 3837 3838 ieee80211_send_action_csa(sdata, params); 3839 3840 break; 3841 #ifdef CONFIG_MAC80211_MESH 3842 case NL80211_IFTYPE_MESH_POINT: { 3843 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3844 3845 /* changes into another band are not supported */ 3846 if (sdata->vif.bss_conf.chandef.chan->band != 3847 params->chandef.chan->band) 3848 return -EINVAL; 3849 3850 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3851 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3852 if (!ifmsh->pre_value) 3853 ifmsh->pre_value = 1; 3854 else 3855 ifmsh->pre_value++; 3856 } 3857 3858 /* see comments in the NL80211_IFTYPE_AP block */ 3859 if (params->count > 1) { 3860 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3861 if (err < 0) { 3862 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3863 return err; 3864 } 3865 } 3866 3867 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3868 ieee80211_send_action_csa(sdata, params); 3869 3870 break; 3871 } 3872 #endif 3873 default: 3874 return -EOPNOTSUPP; 3875 } 3876 3877 return 0; 3878 } 3879 3880 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3881 { 3882 sdata->vif.bss_conf.color_change_active = false; 3883 3884 ieee80211_free_next_beacon(&sdata->deflink); 3885 3886 cfg80211_color_change_aborted_notify(sdata->dev); 3887 } 3888 3889 static int 3890 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3891 struct cfg80211_csa_settings *params) 3892 { 3893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3894 struct ieee80211_local *local = sdata->local; 3895 struct ieee80211_channel_switch ch_switch; 3896 struct ieee80211_chanctx_conf *conf; 3897 struct ieee80211_chanctx *chanctx; 3898 u64 changed = 0; 3899 int err; 3900 3901 sdata_assert_lock(sdata); 3902 lockdep_assert_held(&local->mtx); 3903 3904 if (!list_empty(&local->roc_list) || local->scanning) 3905 return -EBUSY; 3906 3907 if (sdata->wdev.cac_started) 3908 return -EBUSY; 3909 3910 if (cfg80211_chandef_identical(¶ms->chandef, 3911 &sdata->vif.bss_conf.chandef)) 3912 return -EINVAL; 3913 3914 /* don't allow another channel switch if one is already active. */ 3915 if (sdata->vif.bss_conf.csa_active) 3916 return -EBUSY; 3917 3918 mutex_lock(&local->chanctx_mtx); 3919 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3920 lockdep_is_held(&local->chanctx_mtx)); 3921 if (!conf) { 3922 err = -EBUSY; 3923 goto out; 3924 } 3925 3926 if (params->chandef.chan->freq_offset) { 3927 /* this may work, but is untested */ 3928 err = -EOPNOTSUPP; 3929 goto out; 3930 } 3931 3932 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3933 3934 ch_switch.timestamp = 0; 3935 ch_switch.device_timestamp = 0; 3936 ch_switch.block_tx = params->block_tx; 3937 ch_switch.chandef = params->chandef; 3938 ch_switch.count = params->count; 3939 3940 err = drv_pre_channel_switch(sdata, &ch_switch); 3941 if (err) 3942 goto out; 3943 3944 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3945 chanctx->mode, 3946 params->radar_required); 3947 if (err) 3948 goto out; 3949 3950 /* if reservation is invalid then this will fail */ 3951 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3952 if (err) { 3953 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3954 goto out; 3955 } 3956 3957 /* if there is a color change in progress, abort it */ 3958 if (sdata->vif.bss_conf.color_change_active) 3959 ieee80211_color_change_abort(sdata); 3960 3961 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3962 if (err) { 3963 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3964 goto out; 3965 } 3966 3967 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3968 goto out; 3969 3970 sdata->deflink.csa_chandef = params->chandef; 3971 sdata->deflink.csa_block_tx = params->block_tx; 3972 sdata->vif.bss_conf.csa_active = true; 3973 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3974 3975 if (sdata->deflink.csa_block_tx) 3976 ieee80211_stop_vif_queues(local, sdata, 3977 IEEE80211_QUEUE_STOP_REASON_CSA); 3978 3979 cfg80211_ch_switch_started_notify(sdata->dev, 3980 &sdata->deflink.csa_chandef, 0, 3981 params->count, params->block_tx, 3982 sdata->vif.bss_conf.csa_punct_bitmap); 3983 3984 if (changed) { 3985 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3986 changed); 3987 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3988 } else { 3989 /* if the beacon didn't change, we can finalize immediately */ 3990 ieee80211_csa_finalize(sdata); 3991 } 3992 3993 out: 3994 mutex_unlock(&local->chanctx_mtx); 3995 return err; 3996 } 3997 3998 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3999 struct cfg80211_csa_settings *params) 4000 { 4001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4002 struct ieee80211_local *local = sdata->local; 4003 int err; 4004 4005 mutex_lock(&local->mtx); 4006 err = __ieee80211_channel_switch(wiphy, dev, params); 4007 mutex_unlock(&local->mtx); 4008 4009 return err; 4010 } 4011 4012 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4013 { 4014 lockdep_assert_held(&local->mtx); 4015 4016 local->roc_cookie_counter++; 4017 4018 /* wow, you wrapped 64 bits ... more likely a bug */ 4019 if (WARN_ON(local->roc_cookie_counter == 0)) 4020 local->roc_cookie_counter++; 4021 4022 return local->roc_cookie_counter; 4023 } 4024 4025 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4026 u64 *cookie, gfp_t gfp) 4027 { 4028 unsigned long spin_flags; 4029 struct sk_buff *ack_skb; 4030 int id; 4031 4032 ack_skb = skb_copy(skb, gfp); 4033 if (!ack_skb) 4034 return -ENOMEM; 4035 4036 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4037 id = idr_alloc(&local->ack_status_frames, ack_skb, 4038 1, 0x2000, GFP_ATOMIC); 4039 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4040 4041 if (id < 0) { 4042 kfree_skb(ack_skb); 4043 return -ENOMEM; 4044 } 4045 4046 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4047 4048 *cookie = ieee80211_mgmt_tx_cookie(local); 4049 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4050 4051 return 0; 4052 } 4053 4054 static void 4055 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4056 struct wireless_dev *wdev, 4057 struct mgmt_frame_regs *upd) 4058 { 4059 struct ieee80211_local *local = wiphy_priv(wiphy); 4060 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4061 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4062 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4063 bool global_change, intf_change; 4064 4065 global_change = 4066 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4067 (local->rx_mcast_action_reg != 4068 !!(upd->global_mcast_stypes & action_mask)); 4069 local->probe_req_reg = upd->global_stypes & preq_mask; 4070 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4071 4072 intf_change = (sdata->vif.probe_req_reg != 4073 !!(upd->interface_stypes & preq_mask)) || 4074 (sdata->vif.rx_mcast_action_reg != 4075 !!(upd->interface_mcast_stypes & action_mask)); 4076 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4077 sdata->vif.rx_mcast_action_reg = 4078 upd->interface_mcast_stypes & action_mask; 4079 4080 if (!local->open_count) 4081 return; 4082 4083 if (intf_change && ieee80211_sdata_running(sdata)) 4084 drv_config_iface_filter(local, sdata, 4085 sdata->vif.probe_req_reg ? 4086 FIF_PROBE_REQ : 0, 4087 FIF_PROBE_REQ); 4088 4089 if (global_change) 4090 ieee80211_configure_filter(local); 4091 } 4092 4093 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4094 { 4095 struct ieee80211_local *local = wiphy_priv(wiphy); 4096 4097 if (local->started) 4098 return -EOPNOTSUPP; 4099 4100 return drv_set_antenna(local, tx_ant, rx_ant); 4101 } 4102 4103 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4104 { 4105 struct ieee80211_local *local = wiphy_priv(wiphy); 4106 4107 return drv_get_antenna(local, tx_ant, rx_ant); 4108 } 4109 4110 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4111 struct net_device *dev, 4112 struct cfg80211_gtk_rekey_data *data) 4113 { 4114 struct ieee80211_local *local = wiphy_priv(wiphy); 4115 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4116 4117 if (!local->ops->set_rekey_data) 4118 return -EOPNOTSUPP; 4119 4120 drv_set_rekey_data(local, sdata, data); 4121 4122 return 0; 4123 } 4124 4125 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4126 const u8 *peer, u64 *cookie) 4127 { 4128 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4129 struct ieee80211_local *local = sdata->local; 4130 struct ieee80211_qos_hdr *nullfunc; 4131 struct sk_buff *skb; 4132 int size = sizeof(*nullfunc); 4133 __le16 fc; 4134 bool qos; 4135 struct ieee80211_tx_info *info; 4136 struct sta_info *sta; 4137 struct ieee80211_chanctx_conf *chanctx_conf; 4138 enum nl80211_band band; 4139 int ret; 4140 4141 /* the lock is needed to assign the cookie later */ 4142 mutex_lock(&local->mtx); 4143 4144 rcu_read_lock(); 4145 sta = sta_info_get_bss(sdata, peer); 4146 if (!sta) { 4147 ret = -ENOLINK; 4148 goto unlock; 4149 } 4150 4151 qos = sta->sta.wme; 4152 4153 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4154 if (WARN_ON(!chanctx_conf)) { 4155 ret = -EINVAL; 4156 goto unlock; 4157 } 4158 band = chanctx_conf->def.chan->band; 4159 4160 if (qos) { 4161 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4162 IEEE80211_STYPE_QOS_NULLFUNC | 4163 IEEE80211_FCTL_FROMDS); 4164 } else { 4165 size -= 2; 4166 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4167 IEEE80211_STYPE_NULLFUNC | 4168 IEEE80211_FCTL_FROMDS); 4169 } 4170 4171 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4172 if (!skb) { 4173 ret = -ENOMEM; 4174 goto unlock; 4175 } 4176 4177 skb->dev = dev; 4178 4179 skb_reserve(skb, local->hw.extra_tx_headroom); 4180 4181 nullfunc = skb_put(skb, size); 4182 nullfunc->frame_control = fc; 4183 nullfunc->duration_id = 0; 4184 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4185 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4186 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4187 nullfunc->seq_ctrl = 0; 4188 4189 info = IEEE80211_SKB_CB(skb); 4190 4191 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4192 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4193 info->band = band; 4194 4195 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4196 skb->priority = 7; 4197 if (qos) 4198 nullfunc->qos_ctrl = cpu_to_le16(7); 4199 4200 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4201 if (ret) { 4202 kfree_skb(skb); 4203 goto unlock; 4204 } 4205 4206 local_bh_disable(); 4207 ieee80211_xmit(sdata, sta, skb); 4208 local_bh_enable(); 4209 4210 ret = 0; 4211 unlock: 4212 rcu_read_unlock(); 4213 mutex_unlock(&local->mtx); 4214 4215 return ret; 4216 } 4217 4218 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4219 struct wireless_dev *wdev, 4220 unsigned int link_id, 4221 struct cfg80211_chan_def *chandef) 4222 { 4223 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4224 struct ieee80211_local *local = wiphy_priv(wiphy); 4225 struct ieee80211_chanctx_conf *chanctx_conf; 4226 struct ieee80211_link_data *link; 4227 int ret = -ENODATA; 4228 4229 rcu_read_lock(); 4230 link = rcu_dereference(sdata->link[link_id]); 4231 if (!link) { 4232 ret = -ENOLINK; 4233 goto out; 4234 } 4235 4236 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4237 if (chanctx_conf) { 4238 *chandef = link->conf->chandef; 4239 ret = 0; 4240 } else if (local->open_count > 0 && 4241 local->open_count == local->monitors && 4242 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4243 if (local->use_chanctx) 4244 *chandef = local->monitor_chandef; 4245 else 4246 *chandef = local->_oper_chandef; 4247 ret = 0; 4248 } 4249 out: 4250 rcu_read_unlock(); 4251 4252 return ret; 4253 } 4254 4255 #ifdef CONFIG_PM 4256 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4257 { 4258 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4259 } 4260 #endif 4261 4262 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4263 struct net_device *dev, 4264 struct cfg80211_qos_map *qos_map) 4265 { 4266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4267 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4268 4269 if (qos_map) { 4270 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4271 if (!new_qos_map) 4272 return -ENOMEM; 4273 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4274 } else { 4275 /* A NULL qos_map was passed to disable QoS mapping */ 4276 new_qos_map = NULL; 4277 } 4278 4279 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4280 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4281 if (old_qos_map) 4282 kfree_rcu(old_qos_map, rcu_head); 4283 4284 return 0; 4285 } 4286 4287 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4288 struct net_device *dev, 4289 unsigned int link_id, 4290 struct cfg80211_chan_def *chandef) 4291 { 4292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4293 struct ieee80211_link_data *link; 4294 int ret; 4295 u64 changed = 0; 4296 4297 link = sdata_dereference(sdata->link[link_id], sdata); 4298 4299 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4300 if (ret == 0) 4301 ieee80211_link_info_change_notify(sdata, link, changed); 4302 4303 return ret; 4304 } 4305 4306 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4307 u8 tsid, const u8 *peer, u8 up, 4308 u16 admitted_time) 4309 { 4310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4311 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4312 int ac = ieee802_1d_to_ac[up]; 4313 4314 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4315 return -EOPNOTSUPP; 4316 4317 if (!(sdata->wmm_acm & BIT(up))) 4318 return -EINVAL; 4319 4320 if (ifmgd->tx_tspec[ac].admitted_time) 4321 return -EBUSY; 4322 4323 if (admitted_time) { 4324 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4325 ifmgd->tx_tspec[ac].tsid = tsid; 4326 ifmgd->tx_tspec[ac].up = up; 4327 } 4328 4329 return 0; 4330 } 4331 4332 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4333 u8 tsid, const u8 *peer) 4334 { 4335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4336 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4337 struct ieee80211_local *local = wiphy_priv(wiphy); 4338 int ac; 4339 4340 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4341 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4342 4343 /* skip unused entries */ 4344 if (!tx_tspec->admitted_time) 4345 continue; 4346 4347 if (tx_tspec->tsid != tsid) 4348 continue; 4349 4350 /* due to this new packets will be reassigned to non-ACM ACs */ 4351 tx_tspec->up = -1; 4352 4353 /* Make sure that all packets have been sent to avoid to 4354 * restore the QoS params on packets that are still on the 4355 * queues. 4356 */ 4357 synchronize_net(); 4358 ieee80211_flush_queues(local, sdata, false); 4359 4360 /* restore the normal QoS parameters 4361 * (unconditionally to avoid races) 4362 */ 4363 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4364 tx_tspec->downgraded = false; 4365 ieee80211_sta_handle_tspec_ac_params(sdata); 4366 4367 /* finally clear all the data */ 4368 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4369 4370 return 0; 4371 } 4372 4373 return -ENOENT; 4374 } 4375 4376 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4377 u8 inst_id, 4378 enum nl80211_nan_func_term_reason reason, 4379 gfp_t gfp) 4380 { 4381 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4382 struct cfg80211_nan_func *func; 4383 u64 cookie; 4384 4385 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4386 return; 4387 4388 spin_lock_bh(&sdata->u.nan.func_lock); 4389 4390 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4391 if (WARN_ON(!func)) { 4392 spin_unlock_bh(&sdata->u.nan.func_lock); 4393 return; 4394 } 4395 4396 cookie = func->cookie; 4397 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4398 4399 spin_unlock_bh(&sdata->u.nan.func_lock); 4400 4401 cfg80211_free_nan_func(func); 4402 4403 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4404 reason, cookie, gfp); 4405 } 4406 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4407 4408 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4409 struct cfg80211_nan_match_params *match, 4410 gfp_t gfp) 4411 { 4412 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4413 struct cfg80211_nan_func *func; 4414 4415 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4416 return; 4417 4418 spin_lock_bh(&sdata->u.nan.func_lock); 4419 4420 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4421 if (WARN_ON(!func)) { 4422 spin_unlock_bh(&sdata->u.nan.func_lock); 4423 return; 4424 } 4425 match->cookie = func->cookie; 4426 4427 spin_unlock_bh(&sdata->u.nan.func_lock); 4428 4429 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4430 } 4431 EXPORT_SYMBOL(ieee80211_nan_func_match); 4432 4433 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4434 struct net_device *dev, 4435 const bool enabled) 4436 { 4437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4438 4439 sdata->u.ap.multicast_to_unicast = enabled; 4440 4441 return 0; 4442 } 4443 4444 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4445 struct txq_info *txqi) 4446 { 4447 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4448 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4449 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4450 } 4451 4452 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4453 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4454 txqstats->backlog_packets = txqi->tin.backlog_packets; 4455 } 4456 4457 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4458 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4459 txqstats->flows = txqi->tin.flows; 4460 } 4461 4462 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4463 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4464 txqstats->drops = txqi->cstats.drop_count; 4465 } 4466 4467 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4468 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4469 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4470 } 4471 4472 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4473 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4474 txqstats->overlimit = txqi->tin.overlimit; 4475 } 4476 4477 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4478 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4479 txqstats->collisions = txqi->tin.collisions; 4480 } 4481 4482 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4483 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4484 txqstats->tx_bytes = txqi->tin.tx_bytes; 4485 } 4486 4487 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4488 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4489 txqstats->tx_packets = txqi->tin.tx_packets; 4490 } 4491 } 4492 4493 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4494 struct wireless_dev *wdev, 4495 struct cfg80211_txq_stats *txqstats) 4496 { 4497 struct ieee80211_local *local = wiphy_priv(wiphy); 4498 struct ieee80211_sub_if_data *sdata; 4499 int ret = 0; 4500 4501 spin_lock_bh(&local->fq.lock); 4502 rcu_read_lock(); 4503 4504 if (wdev) { 4505 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4506 if (!sdata->vif.txq) { 4507 ret = 1; 4508 goto out; 4509 } 4510 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4511 } else { 4512 /* phy stats */ 4513 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4514 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4515 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4516 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4517 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4518 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4519 txqstats->backlog_packets = local->fq.backlog; 4520 txqstats->backlog_bytes = local->fq.memory_usage; 4521 txqstats->overlimit = local->fq.overlimit; 4522 txqstats->overmemory = local->fq.overmemory; 4523 txqstats->collisions = local->fq.collisions; 4524 txqstats->max_flows = local->fq.flows_cnt; 4525 } 4526 4527 out: 4528 rcu_read_unlock(); 4529 spin_unlock_bh(&local->fq.lock); 4530 4531 return ret; 4532 } 4533 4534 static int 4535 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4536 struct net_device *dev, 4537 struct cfg80211_ftm_responder_stats *ftm_stats) 4538 { 4539 struct ieee80211_local *local = wiphy_priv(wiphy); 4540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4541 4542 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4543 } 4544 4545 static int 4546 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4547 struct cfg80211_pmsr_request *request) 4548 { 4549 struct ieee80211_local *local = wiphy_priv(wiphy); 4550 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4551 4552 return drv_start_pmsr(local, sdata, request); 4553 } 4554 4555 static void 4556 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4557 struct cfg80211_pmsr_request *request) 4558 { 4559 struct ieee80211_local *local = wiphy_priv(wiphy); 4560 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4561 4562 return drv_abort_pmsr(local, sdata, request); 4563 } 4564 4565 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4566 struct net_device *dev, 4567 struct cfg80211_tid_config *tid_conf) 4568 { 4569 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4570 struct sta_info *sta; 4571 int ret; 4572 4573 if (!sdata->local->ops->set_tid_config) 4574 return -EOPNOTSUPP; 4575 4576 if (!tid_conf->peer) 4577 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4578 4579 mutex_lock(&sdata->local->sta_mtx); 4580 sta = sta_info_get_bss(sdata, tid_conf->peer); 4581 if (!sta) { 4582 mutex_unlock(&sdata->local->sta_mtx); 4583 return -ENOENT; 4584 } 4585 4586 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4587 mutex_unlock(&sdata->local->sta_mtx); 4588 4589 return ret; 4590 } 4591 4592 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4593 struct net_device *dev, 4594 const u8 *peer, u8 tids) 4595 { 4596 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4597 struct sta_info *sta; 4598 int ret; 4599 4600 if (!sdata->local->ops->reset_tid_config) 4601 return -EOPNOTSUPP; 4602 4603 if (!peer) 4604 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4605 4606 mutex_lock(&sdata->local->sta_mtx); 4607 sta = sta_info_get_bss(sdata, peer); 4608 if (!sta) { 4609 mutex_unlock(&sdata->local->sta_mtx); 4610 return -ENOENT; 4611 } 4612 4613 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4614 mutex_unlock(&sdata->local->sta_mtx); 4615 4616 return ret; 4617 } 4618 4619 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4620 struct cfg80211_sar_specs *sar) 4621 { 4622 struct ieee80211_local *local = wiphy_priv(wiphy); 4623 4624 if (!local->ops->set_sar_specs) 4625 return -EOPNOTSUPP; 4626 4627 return local->ops->set_sar_specs(&local->hw, sar); 4628 } 4629 4630 static int 4631 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4632 u64 *changed) 4633 { 4634 switch (sdata->vif.type) { 4635 case NL80211_IFTYPE_AP: { 4636 int ret; 4637 4638 if (!sdata->deflink.u.ap.next_beacon) 4639 return -EINVAL; 4640 4641 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4642 sdata->deflink.u.ap.next_beacon, 4643 NULL, NULL, changed); 4644 ieee80211_free_next_beacon(&sdata->deflink); 4645 4646 if (ret < 0) 4647 return ret; 4648 4649 break; 4650 } 4651 default: 4652 WARN_ON_ONCE(1); 4653 return -EINVAL; 4654 } 4655 4656 return 0; 4657 } 4658 4659 static int 4660 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4661 struct cfg80211_color_change_settings *params, 4662 u64 *changed) 4663 { 4664 struct ieee80211_color_change_settings color_change = {}; 4665 int err; 4666 4667 switch (sdata->vif.type) { 4668 case NL80211_IFTYPE_AP: 4669 sdata->deflink.u.ap.next_beacon = 4670 cfg80211_beacon_dup(¶ms->beacon_next); 4671 if (!sdata->deflink.u.ap.next_beacon) 4672 return -ENOMEM; 4673 4674 if (params->count <= 1) 4675 break; 4676 4677 color_change.counter_offset_beacon = 4678 params->counter_offset_beacon; 4679 color_change.counter_offset_presp = 4680 params->counter_offset_presp; 4681 color_change.count = params->count; 4682 4683 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4684 ¶ms->beacon_color_change, 4685 NULL, &color_change, changed); 4686 if (err < 0) { 4687 ieee80211_free_next_beacon(&sdata->deflink); 4688 return err; 4689 } 4690 break; 4691 default: 4692 return -EOPNOTSUPP; 4693 } 4694 4695 return 0; 4696 } 4697 4698 static void 4699 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4700 u8 color, int enable, u64 changed) 4701 { 4702 sdata->vif.bss_conf.he_bss_color.color = color; 4703 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4704 changed |= BSS_CHANGED_HE_BSS_COLOR; 4705 4706 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4707 4708 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4709 struct ieee80211_sub_if_data *child; 4710 4711 mutex_lock(&sdata->local->iflist_mtx); 4712 list_for_each_entry(child, &sdata->local->interfaces, list) { 4713 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4714 child->vif.bss_conf.he_bss_color.color = color; 4715 child->vif.bss_conf.he_bss_color.enabled = enable; 4716 ieee80211_link_info_change_notify(child, 4717 &child->deflink, 4718 BSS_CHANGED_HE_BSS_COLOR); 4719 } 4720 } 4721 mutex_unlock(&sdata->local->iflist_mtx); 4722 } 4723 } 4724 4725 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4726 { 4727 struct ieee80211_local *local = sdata->local; 4728 u64 changed = 0; 4729 int err; 4730 4731 sdata_assert_lock(sdata); 4732 lockdep_assert_held(&local->mtx); 4733 4734 sdata->vif.bss_conf.color_change_active = false; 4735 4736 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4737 if (err) { 4738 cfg80211_color_change_aborted_notify(sdata->dev); 4739 return err; 4740 } 4741 4742 ieee80211_color_change_bss_config_notify(sdata, 4743 sdata->vif.bss_conf.color_change_color, 4744 1, changed); 4745 cfg80211_color_change_notify(sdata->dev); 4746 4747 return 0; 4748 } 4749 4750 void ieee80211_color_change_finalize_work(struct work_struct *work) 4751 { 4752 struct ieee80211_sub_if_data *sdata = 4753 container_of(work, struct ieee80211_sub_if_data, 4754 deflink.color_change_finalize_work); 4755 struct ieee80211_local *local = sdata->local; 4756 4757 sdata_lock(sdata); 4758 mutex_lock(&local->mtx); 4759 4760 /* AP might have been stopped while waiting for the lock. */ 4761 if (!sdata->vif.bss_conf.color_change_active) 4762 goto unlock; 4763 4764 if (!ieee80211_sdata_running(sdata)) 4765 goto unlock; 4766 4767 ieee80211_color_change_finalize(sdata); 4768 4769 unlock: 4770 mutex_unlock(&local->mtx); 4771 sdata_unlock(sdata); 4772 } 4773 4774 void ieee80211_color_collision_detection_work(struct work_struct *work) 4775 { 4776 struct delayed_work *delayed_work = to_delayed_work(work); 4777 struct ieee80211_link_data *link = 4778 container_of(delayed_work, struct ieee80211_link_data, 4779 color_collision_detect_work); 4780 struct ieee80211_sub_if_data *sdata = link->sdata; 4781 4782 sdata_lock(sdata); 4783 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4784 sdata_unlock(sdata); 4785 } 4786 4787 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4788 { 4789 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4790 4791 ieee80211_queue_work(&sdata->local->hw, 4792 &sdata->deflink.color_change_finalize_work); 4793 } 4794 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4795 4796 void 4797 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4798 u64 color_bitmap, gfp_t gfp) 4799 { 4800 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4801 struct ieee80211_link_data *link = &sdata->deflink; 4802 4803 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4804 return; 4805 4806 if (delayed_work_pending(&link->color_collision_detect_work)) 4807 return; 4808 4809 link->color_bitmap = color_bitmap; 4810 /* queue the color collision detection event every 500 ms in order to 4811 * avoid sending too much netlink messages to userspace. 4812 */ 4813 ieee80211_queue_delayed_work(&sdata->local->hw, 4814 &link->color_collision_detect_work, 4815 msecs_to_jiffies(500)); 4816 } 4817 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4818 4819 static int 4820 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4821 struct cfg80211_color_change_settings *params) 4822 { 4823 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4824 struct ieee80211_local *local = sdata->local; 4825 u64 changed = 0; 4826 int err; 4827 4828 sdata_assert_lock(sdata); 4829 4830 if (sdata->vif.bss_conf.nontransmitted) 4831 return -EINVAL; 4832 4833 mutex_lock(&local->mtx); 4834 4835 /* don't allow another color change if one is already active or if csa 4836 * is active 4837 */ 4838 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4839 err = -EBUSY; 4840 goto out; 4841 } 4842 4843 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4844 if (err) 4845 goto out; 4846 4847 sdata->vif.bss_conf.color_change_active = true; 4848 sdata->vif.bss_conf.color_change_color = params->color; 4849 4850 cfg80211_color_change_started_notify(sdata->dev, params->count); 4851 4852 if (changed) 4853 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4854 else 4855 /* if the beacon didn't change, we can finalize immediately */ 4856 ieee80211_color_change_finalize(sdata); 4857 4858 out: 4859 mutex_unlock(&local->mtx); 4860 4861 return err; 4862 } 4863 4864 static int 4865 ieee80211_set_radar_background(struct wiphy *wiphy, 4866 struct cfg80211_chan_def *chandef) 4867 { 4868 struct ieee80211_local *local = wiphy_priv(wiphy); 4869 4870 if (!local->ops->set_radar_background) 4871 return -EOPNOTSUPP; 4872 4873 return local->ops->set_radar_background(&local->hw, chandef); 4874 } 4875 4876 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4877 struct wireless_dev *wdev, 4878 unsigned int link_id) 4879 { 4880 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4881 int res; 4882 4883 if (wdev->use_4addr) 4884 return -EOPNOTSUPP; 4885 4886 mutex_lock(&sdata->local->mtx); 4887 res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4888 mutex_unlock(&sdata->local->mtx); 4889 4890 return res; 4891 } 4892 4893 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4894 struct wireless_dev *wdev, 4895 unsigned int link_id) 4896 { 4897 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4898 4899 mutex_lock(&sdata->local->mtx); 4900 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4901 mutex_unlock(&sdata->local->mtx); 4902 } 4903 4904 static int sta_add_link_station(struct ieee80211_local *local, 4905 struct ieee80211_sub_if_data *sdata, 4906 struct link_station_parameters *params) 4907 { 4908 struct sta_info *sta; 4909 int ret; 4910 4911 sta = sta_info_get_bss(sdata, params->mld_mac); 4912 if (!sta) 4913 return -ENOENT; 4914 4915 if (!sta->sta.valid_links) 4916 return -EINVAL; 4917 4918 if (sta->sta.valid_links & BIT(params->link_id)) 4919 return -EALREADY; 4920 4921 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4922 if (ret) 4923 return ret; 4924 4925 ret = sta_link_apply_parameters(local, sta, true, params); 4926 if (ret) { 4927 ieee80211_sta_free_link(sta, params->link_id); 4928 return ret; 4929 } 4930 4931 /* ieee80211_sta_activate_link frees the link upon failure */ 4932 return ieee80211_sta_activate_link(sta, params->link_id); 4933 } 4934 4935 static int 4936 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4937 struct link_station_parameters *params) 4938 { 4939 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4940 struct ieee80211_local *local = wiphy_priv(wiphy); 4941 int ret; 4942 4943 mutex_lock(&sdata->local->sta_mtx); 4944 ret = sta_add_link_station(local, sdata, params); 4945 mutex_unlock(&sdata->local->sta_mtx); 4946 4947 return ret; 4948 } 4949 4950 static int sta_mod_link_station(struct ieee80211_local *local, 4951 struct ieee80211_sub_if_data *sdata, 4952 struct link_station_parameters *params) 4953 { 4954 struct sta_info *sta; 4955 4956 sta = sta_info_get_bss(sdata, params->mld_mac); 4957 if (!sta) 4958 return -ENOENT; 4959 4960 if (!(sta->sta.valid_links & BIT(params->link_id))) 4961 return -EINVAL; 4962 4963 return sta_link_apply_parameters(local, sta, false, params); 4964 } 4965 4966 static int 4967 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4968 struct link_station_parameters *params) 4969 { 4970 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4971 struct ieee80211_local *local = wiphy_priv(wiphy); 4972 int ret; 4973 4974 mutex_lock(&sdata->local->sta_mtx); 4975 ret = sta_mod_link_station(local, sdata, params); 4976 mutex_unlock(&sdata->local->sta_mtx); 4977 4978 return ret; 4979 } 4980 4981 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4982 struct link_station_del_parameters *params) 4983 { 4984 struct sta_info *sta; 4985 4986 sta = sta_info_get_bss(sdata, params->mld_mac); 4987 if (!sta) 4988 return -ENOENT; 4989 4990 if (!(sta->sta.valid_links & BIT(params->link_id))) 4991 return -EINVAL; 4992 4993 /* must not create a STA without links */ 4994 if (sta->sta.valid_links == BIT(params->link_id)) 4995 return -EINVAL; 4996 4997 ieee80211_sta_remove_link(sta, params->link_id); 4998 4999 return 0; 5000 } 5001 5002 static int 5003 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5004 struct link_station_del_parameters *params) 5005 { 5006 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5007 int ret; 5008 5009 mutex_lock(&sdata->local->sta_mtx); 5010 ret = sta_del_link_station(sdata, params); 5011 mutex_unlock(&sdata->local->sta_mtx); 5012 5013 return ret; 5014 } 5015 5016 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5017 struct net_device *dev, 5018 struct cfg80211_set_hw_timestamp *hwts) 5019 { 5020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5021 struct ieee80211_local *local = sdata->local; 5022 5023 if (!local->ops->set_hw_timestamp) 5024 return -EOPNOTSUPP; 5025 5026 if (!check_sdata_in_driver(sdata)) 5027 return -EIO; 5028 5029 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5030 } 5031 5032 const struct cfg80211_ops mac80211_config_ops = { 5033 .add_virtual_intf = ieee80211_add_iface, 5034 .del_virtual_intf = ieee80211_del_iface, 5035 .change_virtual_intf = ieee80211_change_iface, 5036 .start_p2p_device = ieee80211_start_p2p_device, 5037 .stop_p2p_device = ieee80211_stop_p2p_device, 5038 .add_key = ieee80211_add_key, 5039 .del_key = ieee80211_del_key, 5040 .get_key = ieee80211_get_key, 5041 .set_default_key = ieee80211_config_default_key, 5042 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5043 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5044 .start_ap = ieee80211_start_ap, 5045 .change_beacon = ieee80211_change_beacon, 5046 .stop_ap = ieee80211_stop_ap, 5047 .add_station = ieee80211_add_station, 5048 .del_station = ieee80211_del_station, 5049 .change_station = ieee80211_change_station, 5050 .get_station = ieee80211_get_station, 5051 .dump_station = ieee80211_dump_station, 5052 .dump_survey = ieee80211_dump_survey, 5053 #ifdef CONFIG_MAC80211_MESH 5054 .add_mpath = ieee80211_add_mpath, 5055 .del_mpath = ieee80211_del_mpath, 5056 .change_mpath = ieee80211_change_mpath, 5057 .get_mpath = ieee80211_get_mpath, 5058 .dump_mpath = ieee80211_dump_mpath, 5059 .get_mpp = ieee80211_get_mpp, 5060 .dump_mpp = ieee80211_dump_mpp, 5061 .update_mesh_config = ieee80211_update_mesh_config, 5062 .get_mesh_config = ieee80211_get_mesh_config, 5063 .join_mesh = ieee80211_join_mesh, 5064 .leave_mesh = ieee80211_leave_mesh, 5065 #endif 5066 .join_ocb = ieee80211_join_ocb, 5067 .leave_ocb = ieee80211_leave_ocb, 5068 .change_bss = ieee80211_change_bss, 5069 .inform_bss = ieee80211_inform_bss, 5070 .set_txq_params = ieee80211_set_txq_params, 5071 .set_monitor_channel = ieee80211_set_monitor_channel, 5072 .suspend = ieee80211_suspend, 5073 .resume = ieee80211_resume, 5074 .scan = ieee80211_scan, 5075 .abort_scan = ieee80211_abort_scan, 5076 .sched_scan_start = ieee80211_sched_scan_start, 5077 .sched_scan_stop = ieee80211_sched_scan_stop, 5078 .auth = ieee80211_auth, 5079 .assoc = ieee80211_assoc, 5080 .deauth = ieee80211_deauth, 5081 .disassoc = ieee80211_disassoc, 5082 .join_ibss = ieee80211_join_ibss, 5083 .leave_ibss = ieee80211_leave_ibss, 5084 .set_mcast_rate = ieee80211_set_mcast_rate, 5085 .set_wiphy_params = ieee80211_set_wiphy_params, 5086 .set_tx_power = ieee80211_set_tx_power, 5087 .get_tx_power = ieee80211_get_tx_power, 5088 .rfkill_poll = ieee80211_rfkill_poll, 5089 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5090 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5091 .set_power_mgmt = ieee80211_set_power_mgmt, 5092 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5093 .remain_on_channel = ieee80211_remain_on_channel, 5094 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5095 .mgmt_tx = ieee80211_mgmt_tx, 5096 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5097 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5098 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5099 .update_mgmt_frame_registrations = 5100 ieee80211_update_mgmt_frame_registrations, 5101 .set_antenna = ieee80211_set_antenna, 5102 .get_antenna = ieee80211_get_antenna, 5103 .set_rekey_data = ieee80211_set_rekey_data, 5104 .tdls_oper = ieee80211_tdls_oper, 5105 .tdls_mgmt = ieee80211_tdls_mgmt, 5106 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5107 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5108 .probe_client = ieee80211_probe_client, 5109 .set_noack_map = ieee80211_set_noack_map, 5110 #ifdef CONFIG_PM 5111 .set_wakeup = ieee80211_set_wakeup, 5112 #endif 5113 .get_channel = ieee80211_cfg_get_channel, 5114 .start_radar_detection = ieee80211_start_radar_detection, 5115 .end_cac = ieee80211_end_cac, 5116 .channel_switch = ieee80211_channel_switch, 5117 .set_qos_map = ieee80211_set_qos_map, 5118 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5119 .add_tx_ts = ieee80211_add_tx_ts, 5120 .del_tx_ts = ieee80211_del_tx_ts, 5121 .start_nan = ieee80211_start_nan, 5122 .stop_nan = ieee80211_stop_nan, 5123 .nan_change_conf = ieee80211_nan_change_conf, 5124 .add_nan_func = ieee80211_add_nan_func, 5125 .del_nan_func = ieee80211_del_nan_func, 5126 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5127 .tx_control_port = ieee80211_tx_control_port, 5128 .get_txq_stats = ieee80211_get_txq_stats, 5129 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5130 .start_pmsr = ieee80211_start_pmsr, 5131 .abort_pmsr = ieee80211_abort_pmsr, 5132 .probe_mesh_link = ieee80211_probe_mesh_link, 5133 .set_tid_config = ieee80211_set_tid_config, 5134 .reset_tid_config = ieee80211_reset_tid_config, 5135 .set_sar_specs = ieee80211_set_sar_specs, 5136 .color_change = ieee80211_color_change, 5137 .set_radar_background = ieee80211_set_radar_background, 5138 .add_intf_link = ieee80211_add_intf_link, 5139 .del_intf_link = ieee80211_del_intf_link, 5140 .add_link_station = ieee80211_add_link_station, 5141 .mod_link_station = ieee80211_mod_link_station, 5142 .del_link_station = ieee80211_del_link_station, 5143 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5144 }; 5145