1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && sdata->vif.valid_links) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 ret = ieee80211_if_change_type(sdata, type); 218 if (ret) 219 return ret; 220 221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 223 ieee80211_check_fast_rx_iface(sdata); 224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 226 227 if (params->use_4addr == ifmgd->use_4addr) 228 return 0; 229 230 /* FIXME: no support for 4-addr MLO yet */ 231 if (sdata->vif.valid_links) 232 return -EOPNOTSUPP; 233 234 sdata->u.mgd.use_4addr = params->use_4addr; 235 if (!ifmgd->associated) 236 return 0; 237 238 mutex_lock(&local->sta_mtx); 239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 240 if (sta) 241 drv_sta_set_4addr(local, sdata, &sta->sta, 242 params->use_4addr); 243 mutex_unlock(&local->sta_mtx); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 mutex_lock(&sdata->local->chanctx_mtx); 265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 266 mutex_unlock(&sdata->local->chanctx_mtx); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 mutex_lock(&sdata->local->chanctx_mtx); 287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 288 mutex_unlock(&sdata->local->chanctx_mtx); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 mutex_lock(&local->key_mtx); 456 key = key_mtx_dereference(local, sta->ptk[key_idx]); 457 458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 459 ret = ieee80211_set_tx_key(key); 460 461 mutex_unlock(&local->key_mtx); 462 return ret; 463 } 464 465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 466 int link_id, u8 key_idx, bool pairwise, 467 const u8 *mac_addr, struct key_params *params) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_link_data *link = 471 ieee80211_link_or_deflink(sdata, link_id, false); 472 struct ieee80211_local *local = sdata->local; 473 struct sta_info *sta = NULL; 474 struct ieee80211_key *key; 475 int err; 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 mutex_lock(&local->sta_mtx); 514 515 if (mac_addr) { 516 sta = sta_info_get_bss(sdata, mac_addr); 517 /* 518 * The ASSOC test makes sure the driver is ready to 519 * receive the key. When wpa_supplicant has roamed 520 * using FT, it attempts to set the key before 521 * association has completed, this rejects that attempt 522 * so it will set the key again after association. 523 * 524 * TODO: accept the key if we have a station entry and 525 * add it to the device after the station. 526 */ 527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 528 ieee80211_key_free_unused(key); 529 err = -ENOENT; 530 goto out_unlock; 531 } 532 } 533 534 switch (sdata->vif.type) { 535 case NL80211_IFTYPE_STATION: 536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 538 break; 539 case NL80211_IFTYPE_AP: 540 case NL80211_IFTYPE_AP_VLAN: 541 /* Keys without a station are used for TX only */ 542 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 544 break; 545 case NL80211_IFTYPE_ADHOC: 546 /* no MFP (yet) */ 547 break; 548 case NL80211_IFTYPE_MESH_POINT: 549 #ifdef CONFIG_MAC80211_MESH 550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 552 break; 553 #endif 554 case NL80211_IFTYPE_WDS: 555 case NL80211_IFTYPE_MONITOR: 556 case NL80211_IFTYPE_P2P_DEVICE: 557 case NL80211_IFTYPE_NAN: 558 case NL80211_IFTYPE_UNSPECIFIED: 559 case NUM_NL80211_IFTYPES: 560 case NL80211_IFTYPE_P2P_CLIENT: 561 case NL80211_IFTYPE_P2P_GO: 562 case NL80211_IFTYPE_OCB: 563 /* shouldn't happen */ 564 WARN_ON_ONCE(1); 565 break; 566 } 567 568 err = ieee80211_key_link(key, link, sta); 569 570 out_unlock: 571 mutex_unlock(&local->sta_mtx); 572 573 return err; 574 } 575 576 static struct ieee80211_key * 577 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 578 u8 key_idx, bool pairwise, const u8 *mac_addr) 579 { 580 struct ieee80211_local *local __maybe_unused = sdata->local; 581 struct ieee80211_link_data *link = &sdata->deflink; 582 struct ieee80211_key *key; 583 584 if (link_id >= 0) { 585 link = rcu_dereference_check(sdata->link[link_id], 586 lockdep_is_held(&sdata->wdev.mtx)); 587 if (!link) 588 return NULL; 589 } 590 591 if (mac_addr) { 592 struct sta_info *sta; 593 struct link_sta_info *link_sta; 594 595 sta = sta_info_get_bss(sdata, mac_addr); 596 if (!sta) 597 return NULL; 598 599 if (link_id >= 0) { 600 link_sta = rcu_dereference_check(sta->link[link_id], 601 lockdep_is_held(&local->sta_mtx)); 602 if (!link_sta) 603 return NULL; 604 } else { 605 link_sta = &sta->deflink; 606 } 607 608 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 609 return rcu_dereference_check_key_mtx(local, 610 sta->ptk[key_idx]); 611 612 if (!pairwise && 613 key_idx < NUM_DEFAULT_KEYS + 614 NUM_DEFAULT_MGMT_KEYS + 615 NUM_DEFAULT_BEACON_KEYS) 616 return rcu_dereference_check_key_mtx(local, 617 link_sta->gtk[key_idx]); 618 619 return NULL; 620 } 621 622 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 623 return rcu_dereference_check_key_mtx(local, 624 sdata->keys[key_idx]); 625 626 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]); 627 if (key) 628 return key; 629 630 /* or maybe it was a WEP key */ 631 if (key_idx < NUM_DEFAULT_KEYS) 632 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 633 634 return NULL; 635 } 636 637 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 638 int link_id, u8 key_idx, bool pairwise, 639 const u8 *mac_addr) 640 { 641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 642 struct ieee80211_local *local = sdata->local; 643 struct ieee80211_key *key; 644 int ret; 645 646 mutex_lock(&local->sta_mtx); 647 mutex_lock(&local->key_mtx); 648 649 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 650 if (!key) { 651 ret = -ENOENT; 652 goto out_unlock; 653 } 654 655 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 656 657 ret = 0; 658 out_unlock: 659 mutex_unlock(&local->key_mtx); 660 mutex_unlock(&local->sta_mtx); 661 662 return ret; 663 } 664 665 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 666 int link_id, u8 key_idx, bool pairwise, 667 const u8 *mac_addr, void *cookie, 668 void (*callback)(void *cookie, 669 struct key_params *params)) 670 { 671 struct ieee80211_sub_if_data *sdata; 672 u8 seq[6] = {0}; 673 struct key_params params; 674 struct ieee80211_key *key; 675 u64 pn64; 676 u32 iv32; 677 u16 iv16; 678 int err = -ENOENT; 679 struct ieee80211_key_seq kseq = {}; 680 681 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 682 683 rcu_read_lock(); 684 685 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 686 if (!key) 687 goto out; 688 689 memset(¶ms, 0, sizeof(params)); 690 691 params.cipher = key->conf.cipher; 692 693 switch (key->conf.cipher) { 694 case WLAN_CIPHER_SUITE_TKIP: 695 pn64 = atomic64_read(&key->conf.tx_pn); 696 iv32 = TKIP_PN_TO_IV32(pn64); 697 iv16 = TKIP_PN_TO_IV16(pn64); 698 699 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 700 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 701 drv_get_key_seq(sdata->local, key, &kseq); 702 iv32 = kseq.tkip.iv32; 703 iv16 = kseq.tkip.iv16; 704 } 705 706 seq[0] = iv16 & 0xff; 707 seq[1] = (iv16 >> 8) & 0xff; 708 seq[2] = iv32 & 0xff; 709 seq[3] = (iv32 >> 8) & 0xff; 710 seq[4] = (iv32 >> 16) & 0xff; 711 seq[5] = (iv32 >> 24) & 0xff; 712 params.seq = seq; 713 params.seq_len = 6; 714 break; 715 case WLAN_CIPHER_SUITE_CCMP: 716 case WLAN_CIPHER_SUITE_CCMP_256: 717 case WLAN_CIPHER_SUITE_AES_CMAC: 718 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 719 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 720 offsetof(typeof(kseq), aes_cmac)); 721 fallthrough; 722 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 723 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 724 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 725 offsetof(typeof(kseq), aes_gmac)); 726 fallthrough; 727 case WLAN_CIPHER_SUITE_GCMP: 728 case WLAN_CIPHER_SUITE_GCMP_256: 729 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 730 offsetof(typeof(kseq), gcmp)); 731 732 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 733 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 734 drv_get_key_seq(sdata->local, key, &kseq); 735 memcpy(seq, kseq.ccmp.pn, 6); 736 } else { 737 pn64 = atomic64_read(&key->conf.tx_pn); 738 seq[0] = pn64; 739 seq[1] = pn64 >> 8; 740 seq[2] = pn64 >> 16; 741 seq[3] = pn64 >> 24; 742 seq[4] = pn64 >> 32; 743 seq[5] = pn64 >> 40; 744 } 745 params.seq = seq; 746 params.seq_len = 6; 747 break; 748 default: 749 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 750 break; 751 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 752 break; 753 drv_get_key_seq(sdata->local, key, &kseq); 754 params.seq = kseq.hw.seq; 755 params.seq_len = kseq.hw.seq_len; 756 break; 757 } 758 759 params.key = key->conf.key; 760 params.key_len = key->conf.keylen; 761 762 callback(cookie, ¶ms); 763 err = 0; 764 765 out: 766 rcu_read_unlock(); 767 return err; 768 } 769 770 static int ieee80211_config_default_key(struct wiphy *wiphy, 771 struct net_device *dev, 772 int link_id, u8 key_idx, bool uni, 773 bool multi) 774 { 775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 776 struct ieee80211_link_data *link = 777 ieee80211_link_or_deflink(sdata, link_id, false); 778 779 if (IS_ERR(link)) 780 return PTR_ERR(link); 781 782 ieee80211_set_default_key(link, key_idx, uni, multi); 783 784 return 0; 785 } 786 787 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 788 struct net_device *dev, 789 int link_id, u8 key_idx) 790 { 791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 792 struct ieee80211_link_data *link = 793 ieee80211_link_or_deflink(sdata, link_id, true); 794 795 if (IS_ERR(link)) 796 return PTR_ERR(link); 797 798 ieee80211_set_default_mgmt_key(link, key_idx); 799 800 return 0; 801 } 802 803 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 804 struct net_device *dev, 805 int link_id, u8 key_idx) 806 { 807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 808 struct ieee80211_link_data *link = 809 ieee80211_link_or_deflink(sdata, link_id, true); 810 811 if (IS_ERR(link)) 812 return PTR_ERR(link); 813 814 ieee80211_set_default_beacon_key(link, key_idx); 815 816 return 0; 817 } 818 819 void sta_set_rate_info_tx(struct sta_info *sta, 820 const struct ieee80211_tx_rate *rate, 821 struct rate_info *rinfo) 822 { 823 rinfo->flags = 0; 824 if (rate->flags & IEEE80211_TX_RC_MCS) { 825 rinfo->flags |= RATE_INFO_FLAGS_MCS; 826 rinfo->mcs = rate->idx; 827 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 828 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 829 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 830 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 831 } else { 832 struct ieee80211_supported_band *sband; 833 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 834 u16 brate; 835 836 sband = ieee80211_get_sband(sta->sdata); 837 WARN_ON_ONCE(sband && !sband->bitrates); 838 if (sband && sband->bitrates) { 839 brate = sband->bitrates[rate->idx].bitrate; 840 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 841 } 842 } 843 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 844 rinfo->bw = RATE_INFO_BW_40; 845 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 846 rinfo->bw = RATE_INFO_BW_80; 847 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 848 rinfo->bw = RATE_INFO_BW_160; 849 else 850 rinfo->bw = RATE_INFO_BW_20; 851 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 852 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 853 } 854 855 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 856 int idx, u8 *mac, struct station_info *sinfo) 857 { 858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 859 struct ieee80211_local *local = sdata->local; 860 struct sta_info *sta; 861 int ret = -ENOENT; 862 863 mutex_lock(&local->sta_mtx); 864 865 sta = sta_info_get_by_idx(sdata, idx); 866 if (sta) { 867 ret = 0; 868 memcpy(mac, sta->sta.addr, ETH_ALEN); 869 sta_set_sinfo(sta, sinfo, true); 870 } 871 872 mutex_unlock(&local->sta_mtx); 873 874 return ret; 875 } 876 877 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 878 int idx, struct survey_info *survey) 879 { 880 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 881 882 return drv_get_survey(local, idx, survey); 883 } 884 885 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 886 const u8 *mac, struct station_info *sinfo) 887 { 888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 889 struct ieee80211_local *local = sdata->local; 890 struct sta_info *sta; 891 int ret = -ENOENT; 892 893 mutex_lock(&local->sta_mtx); 894 895 sta = sta_info_get_bss(sdata, mac); 896 if (sta) { 897 ret = 0; 898 sta_set_sinfo(sta, sinfo, true); 899 } 900 901 mutex_unlock(&local->sta_mtx); 902 903 return ret; 904 } 905 906 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 907 struct cfg80211_chan_def *chandef) 908 { 909 struct ieee80211_local *local = wiphy_priv(wiphy); 910 struct ieee80211_sub_if_data *sdata; 911 int ret = 0; 912 913 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 914 return 0; 915 916 mutex_lock(&local->mtx); 917 if (local->use_chanctx) { 918 sdata = wiphy_dereference(local->hw.wiphy, 919 local->monitor_sdata); 920 if (sdata) { 921 ieee80211_link_release_channel(&sdata->deflink); 922 ret = ieee80211_link_use_channel(&sdata->deflink, 923 chandef, 924 IEEE80211_CHANCTX_EXCLUSIVE); 925 } 926 } else if (local->open_count == local->monitors) { 927 local->_oper_chandef = *chandef; 928 ieee80211_hw_config(local, 0); 929 } 930 931 if (ret == 0) 932 local->monitor_chandef = *chandef; 933 mutex_unlock(&local->mtx); 934 935 return ret; 936 } 937 938 static int 939 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 940 const u8 *resp, size_t resp_len, 941 const struct ieee80211_csa_settings *csa, 942 const struct ieee80211_color_change_settings *cca, 943 struct ieee80211_link_data *link) 944 { 945 struct probe_resp *new, *old; 946 947 if (!resp || !resp_len) 948 return 1; 949 950 old = sdata_dereference(link->u.ap.probe_resp, sdata); 951 952 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 953 if (!new) 954 return -ENOMEM; 955 956 new->len = resp_len; 957 memcpy(new->data, resp, resp_len); 958 959 if (csa) 960 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 961 csa->n_counter_offsets_presp * 962 sizeof(new->cntdwn_counter_offsets[0])); 963 else if (cca) 964 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 965 966 rcu_assign_pointer(link->u.ap.probe_resp, new); 967 if (old) 968 kfree_rcu(old, rcu_head); 969 970 return 0; 971 } 972 973 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 974 struct cfg80211_fils_discovery *params, 975 struct ieee80211_link_data *link, 976 struct ieee80211_bss_conf *link_conf) 977 { 978 struct fils_discovery_data *new, *old = NULL; 979 struct ieee80211_fils_discovery *fd; 980 981 if (!params->tmpl || !params->tmpl_len) 982 return -EINVAL; 983 984 fd = &link_conf->fils_discovery; 985 fd->min_interval = params->min_interval; 986 fd->max_interval = params->max_interval; 987 988 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 989 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 990 if (!new) 991 return -ENOMEM; 992 new->len = params->tmpl_len; 993 memcpy(new->data, params->tmpl, params->tmpl_len); 994 rcu_assign_pointer(link->u.ap.fils_discovery, new); 995 996 if (old) 997 kfree_rcu(old, rcu_head); 998 999 return 0; 1000 } 1001 1002 static int 1003 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1004 struct cfg80211_unsol_bcast_probe_resp *params, 1005 struct ieee80211_link_data *link, 1006 struct ieee80211_bss_conf *link_conf) 1007 { 1008 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1009 1010 if (!params->tmpl || !params->tmpl_len) 1011 return -EINVAL; 1012 1013 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1014 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1015 if (!new) 1016 return -ENOMEM; 1017 new->len = params->tmpl_len; 1018 memcpy(new->data, params->tmpl, params->tmpl_len); 1019 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1020 1021 if (old) 1022 kfree_rcu(old, rcu_head); 1023 1024 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1025 1026 return 0; 1027 } 1028 1029 static int ieee80211_set_ftm_responder_params( 1030 struct ieee80211_sub_if_data *sdata, 1031 const u8 *lci, size_t lci_len, 1032 const u8 *civicloc, size_t civicloc_len, 1033 struct ieee80211_bss_conf *link_conf) 1034 { 1035 struct ieee80211_ftm_responder_params *new, *old; 1036 u8 *pos; 1037 int len; 1038 1039 if (!lci_len && !civicloc_len) 1040 return 0; 1041 1042 old = link_conf->ftmr_params; 1043 len = lci_len + civicloc_len; 1044 1045 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1046 if (!new) 1047 return -ENOMEM; 1048 1049 pos = (u8 *)(new + 1); 1050 if (lci_len) { 1051 new->lci_len = lci_len; 1052 new->lci = pos; 1053 memcpy(pos, lci, lci_len); 1054 pos += lci_len; 1055 } 1056 1057 if (civicloc_len) { 1058 new->civicloc_len = civicloc_len; 1059 new->civicloc = pos; 1060 memcpy(pos, civicloc, civicloc_len); 1061 pos += civicloc_len; 1062 } 1063 1064 link_conf->ftmr_params = new; 1065 kfree(old); 1066 1067 return 0; 1068 } 1069 1070 static int 1071 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1072 struct cfg80211_mbssid_elems *src) 1073 { 1074 int i, offset = 0; 1075 1076 for (i = 0; i < src->cnt; i++) { 1077 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1078 dst->elem[i].len = src->elem[i].len; 1079 dst->elem[i].data = pos + offset; 1080 offset += dst->elem[i].len; 1081 } 1082 dst->cnt = src->cnt; 1083 1084 return offset; 1085 } 1086 1087 static int 1088 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1089 struct cfg80211_rnr_elems *src) 1090 { 1091 int i, offset = 0; 1092 1093 for (i = 0; i < src->cnt; i++) { 1094 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1095 dst->elem[i].len = src->elem[i].len; 1096 dst->elem[i].data = pos + offset; 1097 offset += dst->elem[i].len; 1098 } 1099 dst->cnt = src->cnt; 1100 1101 return offset; 1102 } 1103 1104 static int 1105 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1106 struct ieee80211_link_data *link, 1107 struct cfg80211_beacon_data *params, 1108 const struct ieee80211_csa_settings *csa, 1109 const struct ieee80211_color_change_settings *cca, 1110 u64 *changed) 1111 { 1112 struct cfg80211_mbssid_elems *mbssid = NULL; 1113 struct cfg80211_rnr_elems *rnr = NULL; 1114 struct beacon_data *new, *old; 1115 int new_head_len, new_tail_len; 1116 int size, err; 1117 u64 _changed = BSS_CHANGED_BEACON; 1118 struct ieee80211_bss_conf *link_conf = link->conf; 1119 1120 old = sdata_dereference(link->u.ap.beacon, sdata); 1121 1122 /* Need to have a beacon head if we don't have one yet */ 1123 if (!params->head && !old) 1124 return -EINVAL; 1125 1126 /* new or old head? */ 1127 if (params->head) 1128 new_head_len = params->head_len; 1129 else 1130 new_head_len = old->head_len; 1131 1132 /* new or old tail? */ 1133 if (params->tail || !old) 1134 /* params->tail_len will be zero for !params->tail */ 1135 new_tail_len = params->tail_len; 1136 else 1137 new_tail_len = old->tail_len; 1138 1139 size = sizeof(*new) + new_head_len + new_tail_len; 1140 1141 /* new or old multiple BSSID elements? */ 1142 if (params->mbssid_ies) { 1143 mbssid = params->mbssid_ies; 1144 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1145 if (params->rnr_ies) { 1146 rnr = params->rnr_ies; 1147 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1148 } 1149 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1150 mbssid->cnt); 1151 } else if (old && old->mbssid_ies) { 1152 mbssid = old->mbssid_ies; 1153 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1154 if (old && old->rnr_ies) { 1155 rnr = old->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 } 1161 1162 new = kzalloc(size, GFP_KERNEL); 1163 if (!new) 1164 return -ENOMEM; 1165 1166 /* start filling the new info now */ 1167 1168 /* 1169 * pointers go into the block we allocated, 1170 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1171 */ 1172 new->head = ((u8 *) new) + sizeof(*new); 1173 new->tail = new->head + new_head_len; 1174 new->head_len = new_head_len; 1175 new->tail_len = new_tail_len; 1176 /* copy in optional mbssid_ies */ 1177 if (mbssid) { 1178 u8 *pos = new->tail + new->tail_len; 1179 1180 new->mbssid_ies = (void *)pos; 1181 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1182 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1183 mbssid); 1184 if (rnr) { 1185 new->rnr_ies = (void *)pos; 1186 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1187 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1188 } 1189 /* update bssid_indicator */ 1190 link_conf->bssid_indicator = 1191 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1192 } 1193 1194 if (csa) { 1195 new->cntdwn_current_counter = csa->count; 1196 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1197 csa->n_counter_offsets_beacon * 1198 sizeof(new->cntdwn_counter_offsets[0])); 1199 } else if (cca) { 1200 new->cntdwn_current_counter = cca->count; 1201 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1202 } 1203 1204 /* copy in head */ 1205 if (params->head) 1206 memcpy(new->head, params->head, new_head_len); 1207 else 1208 memcpy(new->head, old->head, new_head_len); 1209 1210 /* copy in optional tail */ 1211 if (params->tail) 1212 memcpy(new->tail, params->tail, new_tail_len); 1213 else 1214 if (old) 1215 memcpy(new->tail, old->tail, new_tail_len); 1216 1217 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1218 params->probe_resp_len, csa, cca, link); 1219 if (err < 0) { 1220 kfree(new); 1221 return err; 1222 } 1223 if (err == 0) 1224 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1225 1226 if (params->ftm_responder != -1) { 1227 link_conf->ftm_responder = params->ftm_responder; 1228 err = ieee80211_set_ftm_responder_params(sdata, 1229 params->lci, 1230 params->lci_len, 1231 params->civicloc, 1232 params->civicloc_len, 1233 link_conf); 1234 1235 if (err < 0) { 1236 kfree(new); 1237 return err; 1238 } 1239 1240 _changed |= BSS_CHANGED_FTM_RESPONDER; 1241 } 1242 1243 rcu_assign_pointer(link->u.ap.beacon, new); 1244 sdata->u.ap.active = true; 1245 1246 if (old) 1247 kfree_rcu(old, rcu_head); 1248 1249 *changed |= _changed; 1250 return 0; 1251 } 1252 1253 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1254 struct cfg80211_ap_settings *params) 1255 { 1256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1257 struct ieee80211_local *local = sdata->local; 1258 struct beacon_data *old; 1259 struct ieee80211_sub_if_data *vlan; 1260 u64 changed = BSS_CHANGED_BEACON_INT | 1261 BSS_CHANGED_BEACON_ENABLED | 1262 BSS_CHANGED_BEACON | 1263 BSS_CHANGED_P2P_PS | 1264 BSS_CHANGED_TXPOWER | 1265 BSS_CHANGED_TWT; 1266 int i, err; 1267 int prev_beacon_int; 1268 unsigned int link_id = params->beacon.link_id; 1269 struct ieee80211_link_data *link; 1270 struct ieee80211_bss_conf *link_conf; 1271 1272 link = sdata_dereference(sdata->link[link_id], sdata); 1273 if (!link) 1274 return -ENOLINK; 1275 1276 link_conf = link->conf; 1277 1278 old = sdata_dereference(link->u.ap.beacon, sdata); 1279 if (old) 1280 return -EALREADY; 1281 1282 if (params->smps_mode != NL80211_SMPS_OFF) 1283 return -ENOTSUPP; 1284 1285 link->smps_mode = IEEE80211_SMPS_OFF; 1286 1287 link->needed_rx_chains = sdata->local->rx_chains; 1288 1289 prev_beacon_int = link_conf->beacon_int; 1290 link_conf->beacon_int = params->beacon_interval; 1291 1292 if (params->ht_cap) 1293 link_conf->ht_ldpc = 1294 params->ht_cap->cap_info & 1295 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1296 1297 if (params->vht_cap) { 1298 link_conf->vht_ldpc = 1299 params->vht_cap->vht_cap_info & 1300 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1301 link_conf->vht_su_beamformer = 1302 params->vht_cap->vht_cap_info & 1303 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1304 link_conf->vht_su_beamformee = 1305 params->vht_cap->vht_cap_info & 1306 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1307 link_conf->vht_mu_beamformer = 1308 params->vht_cap->vht_cap_info & 1309 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1310 link_conf->vht_mu_beamformee = 1311 params->vht_cap->vht_cap_info & 1312 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1313 } 1314 1315 if (params->he_cap && params->he_oper) { 1316 link_conf->he_support = true; 1317 link_conf->htc_trig_based_pkt_ext = 1318 le32_get_bits(params->he_oper->he_oper_params, 1319 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1320 link_conf->frame_time_rts_th = 1321 le32_get_bits(params->he_oper->he_oper_params, 1322 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1323 changed |= BSS_CHANGED_HE_OBSS_PD; 1324 1325 if (params->beacon.he_bss_color.enabled) 1326 changed |= BSS_CHANGED_HE_BSS_COLOR; 1327 } 1328 1329 if (params->he_cap) { 1330 link_conf->he_ldpc = 1331 params->he_cap->phy_cap_info[1] & 1332 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1333 link_conf->he_su_beamformer = 1334 params->he_cap->phy_cap_info[3] & 1335 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1336 link_conf->he_su_beamformee = 1337 params->he_cap->phy_cap_info[4] & 1338 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1339 link_conf->he_mu_beamformer = 1340 params->he_cap->phy_cap_info[4] & 1341 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1342 link_conf->he_full_ul_mumimo = 1343 params->he_cap->phy_cap_info[2] & 1344 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1345 } 1346 1347 if (params->eht_cap) { 1348 if (!link_conf->he_support) 1349 return -EOPNOTSUPP; 1350 1351 link_conf->eht_support = true; 1352 link_conf->eht_puncturing = params->punct_bitmap; 1353 changed |= BSS_CHANGED_EHT_PUNCTURING; 1354 1355 link_conf->eht_su_beamformer = 1356 params->eht_cap->fixed.phy_cap_info[0] & 1357 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1358 link_conf->eht_su_beamformee = 1359 params->eht_cap->fixed.phy_cap_info[0] & 1360 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1361 link_conf->eht_mu_beamformer = 1362 params->eht_cap->fixed.phy_cap_info[7] & 1363 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1364 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1365 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1366 } else { 1367 link_conf->eht_su_beamformer = false; 1368 link_conf->eht_su_beamformee = false; 1369 link_conf->eht_mu_beamformer = false; 1370 } 1371 1372 if (sdata->vif.type == NL80211_IFTYPE_AP && 1373 params->mbssid_config.tx_wdev) { 1374 err = ieee80211_set_ap_mbssid_options(sdata, 1375 params->mbssid_config, 1376 link_conf); 1377 if (err) 1378 return err; 1379 } 1380 1381 mutex_lock(&local->mtx); 1382 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1383 IEEE80211_CHANCTX_SHARED); 1384 if (!err) 1385 ieee80211_link_copy_chanctx_to_vlans(link, false); 1386 mutex_unlock(&local->mtx); 1387 if (err) { 1388 link_conf->beacon_int = prev_beacon_int; 1389 return err; 1390 } 1391 1392 /* 1393 * Apply control port protocol, this allows us to 1394 * not encrypt dynamic WEP control frames. 1395 */ 1396 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1397 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1398 sdata->control_port_over_nl80211 = 1399 params->crypto.control_port_over_nl80211; 1400 sdata->control_port_no_preauth = 1401 params->crypto.control_port_no_preauth; 1402 1403 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1404 vlan->control_port_protocol = 1405 params->crypto.control_port_ethertype; 1406 vlan->control_port_no_encrypt = 1407 params->crypto.control_port_no_encrypt; 1408 vlan->control_port_over_nl80211 = 1409 params->crypto.control_port_over_nl80211; 1410 vlan->control_port_no_preauth = 1411 params->crypto.control_port_no_preauth; 1412 } 1413 1414 link_conf->dtim_period = params->dtim_period; 1415 link_conf->enable_beacon = true; 1416 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1417 link_conf->twt_responder = params->twt_responder; 1418 link_conf->he_obss_pd = params->he_obss_pd; 1419 link_conf->he_bss_color = params->beacon.he_bss_color; 1420 sdata->vif.cfg.s1g = params->chandef.chan->band == 1421 NL80211_BAND_S1GHZ; 1422 1423 sdata->vif.cfg.ssid_len = params->ssid_len; 1424 if (params->ssid_len) 1425 memcpy(sdata->vif.cfg.ssid, params->ssid, 1426 params->ssid_len); 1427 link_conf->hidden_ssid = 1428 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1429 1430 memset(&link_conf->p2p_noa_attr, 0, 1431 sizeof(link_conf->p2p_noa_attr)); 1432 link_conf->p2p_noa_attr.oppps_ctwindow = 1433 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1434 if (params->p2p_opp_ps) 1435 link_conf->p2p_noa_attr.oppps_ctwindow |= 1436 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1437 1438 sdata->beacon_rate_set = false; 1439 if (wiphy_ext_feature_isset(local->hw.wiphy, 1440 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1441 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1442 sdata->beacon_rateidx_mask[i] = 1443 params->beacon_rate.control[i].legacy; 1444 if (sdata->beacon_rateidx_mask[i]) 1445 sdata->beacon_rate_set = true; 1446 } 1447 } 1448 1449 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1450 link_conf->beacon_tx_rate = params->beacon_rate; 1451 1452 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1453 &changed); 1454 if (err < 0) 1455 goto error; 1456 1457 if (params->fils_discovery.max_interval) { 1458 err = ieee80211_set_fils_discovery(sdata, 1459 ¶ms->fils_discovery, 1460 link, link_conf); 1461 if (err < 0) 1462 goto error; 1463 changed |= BSS_CHANGED_FILS_DISCOVERY; 1464 } 1465 1466 if (params->unsol_bcast_probe_resp.interval) { 1467 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1468 ¶ms->unsol_bcast_probe_resp, 1469 link, link_conf); 1470 if (err < 0) 1471 goto error; 1472 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1473 } 1474 1475 err = drv_start_ap(sdata->local, sdata, link_conf); 1476 if (err) { 1477 old = sdata_dereference(link->u.ap.beacon, sdata); 1478 1479 if (old) 1480 kfree_rcu(old, rcu_head); 1481 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1482 sdata->u.ap.active = false; 1483 goto error; 1484 } 1485 1486 ieee80211_recalc_dtim(local, sdata); 1487 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1488 ieee80211_link_info_change_notify(sdata, link, changed); 1489 1490 netif_carrier_on(dev); 1491 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1492 netif_carrier_on(vlan->dev); 1493 1494 return 0; 1495 1496 error: 1497 mutex_lock(&local->mtx); 1498 ieee80211_link_release_channel(link); 1499 mutex_unlock(&local->mtx); 1500 1501 return err; 1502 } 1503 1504 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1505 struct cfg80211_beacon_data *params) 1506 { 1507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1508 struct ieee80211_link_data *link; 1509 struct beacon_data *old; 1510 int err; 1511 struct ieee80211_bss_conf *link_conf; 1512 u64 changed = 0; 1513 1514 sdata_assert_lock(sdata); 1515 1516 link = sdata_dereference(sdata->link[params->link_id], sdata); 1517 if (!link) 1518 return -ENOLINK; 1519 1520 link_conf = link->conf; 1521 1522 /* don't allow changing the beacon while a countdown is in place - offset 1523 * of channel switch counter may change 1524 */ 1525 if (link_conf->csa_active || link_conf->color_change_active) 1526 return -EBUSY; 1527 1528 old = sdata_dereference(link->u.ap.beacon, sdata); 1529 if (!old) 1530 return -ENOENT; 1531 1532 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL, 1533 &changed); 1534 if (err < 0) 1535 return err; 1536 1537 if (params->he_bss_color_valid && 1538 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1539 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1540 changed |= BSS_CHANGED_HE_BSS_COLOR; 1541 } 1542 1543 ieee80211_link_info_change_notify(sdata, link, changed); 1544 return 0; 1545 } 1546 1547 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1548 { 1549 if (!link->u.ap.next_beacon) 1550 return; 1551 1552 kfree(link->u.ap.next_beacon->mbssid_ies); 1553 kfree(link->u.ap.next_beacon->rnr_ies); 1554 kfree(link->u.ap.next_beacon); 1555 link->u.ap.next_beacon = NULL; 1556 } 1557 1558 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1559 unsigned int link_id) 1560 { 1561 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1562 struct ieee80211_sub_if_data *vlan; 1563 struct ieee80211_local *local = sdata->local; 1564 struct beacon_data *old_beacon; 1565 struct probe_resp *old_probe_resp; 1566 struct fils_discovery_data *old_fils_discovery; 1567 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1568 struct cfg80211_chan_def chandef; 1569 struct ieee80211_link_data *link = 1570 sdata_dereference(sdata->link[link_id], sdata); 1571 struct ieee80211_bss_conf *link_conf = link->conf; 1572 1573 sdata_assert_lock(sdata); 1574 1575 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1576 if (!old_beacon) 1577 return -ENOENT; 1578 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1579 sdata); 1580 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1581 sdata); 1582 old_unsol_bcast_probe_resp = 1583 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1584 sdata); 1585 1586 /* abort any running channel switch or color change */ 1587 mutex_lock(&local->mtx); 1588 link_conf->csa_active = false; 1589 link_conf->color_change_active = false; 1590 if (link->csa_block_tx) { 1591 ieee80211_wake_vif_queues(local, sdata, 1592 IEEE80211_QUEUE_STOP_REASON_CSA); 1593 link->csa_block_tx = false; 1594 } 1595 1596 mutex_unlock(&local->mtx); 1597 1598 ieee80211_free_next_beacon(link); 1599 1600 /* turn off carrier for this interface and dependent VLANs */ 1601 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1602 netif_carrier_off(vlan->dev); 1603 netif_carrier_off(dev); 1604 1605 /* remove beacon and probe response */ 1606 sdata->u.ap.active = false; 1607 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1608 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1609 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1610 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1611 kfree_rcu(old_beacon, rcu_head); 1612 if (old_probe_resp) 1613 kfree_rcu(old_probe_resp, rcu_head); 1614 if (old_fils_discovery) 1615 kfree_rcu(old_fils_discovery, rcu_head); 1616 if (old_unsol_bcast_probe_resp) 1617 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1618 1619 kfree(link_conf->ftmr_params); 1620 link_conf->ftmr_params = NULL; 1621 1622 sdata->vif.mbssid_tx_vif = NULL; 1623 link_conf->bssid_index = 0; 1624 link_conf->nontransmitted = false; 1625 link_conf->ema_ap = false; 1626 link_conf->bssid_indicator = 0; 1627 1628 __sta_info_flush(sdata, true); 1629 ieee80211_free_keys(sdata, true); 1630 1631 link_conf->enable_beacon = false; 1632 sdata->beacon_rate_set = false; 1633 sdata->vif.cfg.ssid_len = 0; 1634 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1635 ieee80211_link_info_change_notify(sdata, link, 1636 BSS_CHANGED_BEACON_ENABLED); 1637 1638 if (sdata->wdev.cac_started) { 1639 chandef = link_conf->chandef; 1640 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1641 cfg80211_cac_event(sdata->dev, &chandef, 1642 NL80211_RADAR_CAC_ABORTED, 1643 GFP_KERNEL); 1644 } 1645 1646 drv_stop_ap(sdata->local, sdata, link_conf); 1647 1648 /* free all potentially still buffered bcast frames */ 1649 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1650 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1651 1652 mutex_lock(&local->mtx); 1653 ieee80211_link_copy_chanctx_to_vlans(link, true); 1654 ieee80211_link_release_channel(link); 1655 mutex_unlock(&local->mtx); 1656 1657 return 0; 1658 } 1659 1660 static int sta_apply_auth_flags(struct ieee80211_local *local, 1661 struct sta_info *sta, 1662 u32 mask, u32 set) 1663 { 1664 int ret; 1665 1666 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1667 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1668 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1669 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1670 if (ret) 1671 return ret; 1672 } 1673 1674 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1675 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1676 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1677 /* 1678 * When peer becomes associated, init rate control as 1679 * well. Some drivers require rate control initialized 1680 * before drv_sta_state() is called. 1681 */ 1682 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1683 rate_control_rate_init(sta); 1684 1685 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1686 if (ret) 1687 return ret; 1688 } 1689 1690 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1691 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1692 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1693 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1694 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1695 else 1696 ret = 0; 1697 if (ret) 1698 return ret; 1699 } 1700 1701 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1702 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1703 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1704 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1705 if (ret) 1706 return ret; 1707 } 1708 1709 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1710 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1711 test_sta_flag(sta, WLAN_STA_AUTH)) { 1712 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1713 if (ret) 1714 return ret; 1715 } 1716 1717 return 0; 1718 } 1719 1720 static void sta_apply_mesh_params(struct ieee80211_local *local, 1721 struct sta_info *sta, 1722 struct station_parameters *params) 1723 { 1724 #ifdef CONFIG_MAC80211_MESH 1725 struct ieee80211_sub_if_data *sdata = sta->sdata; 1726 u64 changed = 0; 1727 1728 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1729 switch (params->plink_state) { 1730 case NL80211_PLINK_ESTAB: 1731 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1732 changed = mesh_plink_inc_estab_count(sdata); 1733 sta->mesh->plink_state = params->plink_state; 1734 sta->mesh->aid = params->peer_aid; 1735 1736 ieee80211_mps_sta_status_update(sta); 1737 changed |= ieee80211_mps_set_sta_local_pm(sta, 1738 sdata->u.mesh.mshcfg.power_mode); 1739 1740 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1741 /* init at low value */ 1742 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1743 1744 break; 1745 case NL80211_PLINK_LISTEN: 1746 case NL80211_PLINK_BLOCKED: 1747 case NL80211_PLINK_OPN_SNT: 1748 case NL80211_PLINK_OPN_RCVD: 1749 case NL80211_PLINK_CNF_RCVD: 1750 case NL80211_PLINK_HOLDING: 1751 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1752 changed = mesh_plink_dec_estab_count(sdata); 1753 sta->mesh->plink_state = params->plink_state; 1754 1755 ieee80211_mps_sta_status_update(sta); 1756 changed |= ieee80211_mps_set_sta_local_pm(sta, 1757 NL80211_MESH_POWER_UNKNOWN); 1758 break; 1759 default: 1760 /* nothing */ 1761 break; 1762 } 1763 } 1764 1765 switch (params->plink_action) { 1766 case NL80211_PLINK_ACTION_NO_ACTION: 1767 /* nothing */ 1768 break; 1769 case NL80211_PLINK_ACTION_OPEN: 1770 changed |= mesh_plink_open(sta); 1771 break; 1772 case NL80211_PLINK_ACTION_BLOCK: 1773 changed |= mesh_plink_block(sta); 1774 break; 1775 } 1776 1777 if (params->local_pm) 1778 changed |= ieee80211_mps_set_sta_local_pm(sta, 1779 params->local_pm); 1780 1781 ieee80211_mbss_info_change_notify(sdata, changed); 1782 #endif 1783 } 1784 1785 static int sta_link_apply_parameters(struct ieee80211_local *local, 1786 struct sta_info *sta, bool new_link, 1787 struct link_station_parameters *params) 1788 { 1789 int ret = 0; 1790 struct ieee80211_supported_band *sband; 1791 struct ieee80211_sub_if_data *sdata = sta->sdata; 1792 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1793 struct ieee80211_link_data *link = 1794 sdata_dereference(sdata->link[link_id], sdata); 1795 struct link_sta_info *link_sta = 1796 rcu_dereference_protected(sta->link[link_id], 1797 lockdep_is_held(&local->sta_mtx)); 1798 1799 /* 1800 * If there are no changes, then accept a link that doesn't exist, 1801 * unless it's a new link. 1802 */ 1803 if (params->link_id < 0 && !new_link && 1804 !params->link_mac && !params->txpwr_set && 1805 !params->supported_rates_len && 1806 !params->ht_capa && !params->vht_capa && 1807 !params->he_capa && !params->eht_capa && 1808 !params->opmode_notif_used) 1809 return 0; 1810 1811 if (!link || !link_sta) 1812 return -EINVAL; 1813 1814 sband = ieee80211_get_link_sband(link); 1815 if (!sband) 1816 return -EINVAL; 1817 1818 if (params->link_mac) { 1819 if (new_link) { 1820 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1821 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1822 } else if (!ether_addr_equal(link_sta->addr, 1823 params->link_mac)) { 1824 return -EINVAL; 1825 } 1826 } else if (new_link) { 1827 return -EINVAL; 1828 } 1829 1830 if (params->txpwr_set) { 1831 link_sta->pub->txpwr.type = params->txpwr.type; 1832 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1833 link_sta->pub->txpwr.power = params->txpwr.power; 1834 ret = drv_sta_set_txpwr(local, sdata, sta); 1835 if (ret) 1836 return ret; 1837 } 1838 1839 if (params->supported_rates && 1840 params->supported_rates_len) { 1841 ieee80211_parse_bitrates(link->conf->chandef.width, 1842 sband, params->supported_rates, 1843 params->supported_rates_len, 1844 &link_sta->pub->supp_rates[sband->band]); 1845 } 1846 1847 if (params->ht_capa) 1848 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1849 params->ht_capa, link_sta); 1850 1851 /* VHT can override some HT caps such as the A-MSDU max length */ 1852 if (params->vht_capa) 1853 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1854 params->vht_capa, link_sta); 1855 1856 if (params->he_capa) 1857 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1858 (void *)params->he_capa, 1859 params->he_capa_len, 1860 (void *)params->he_6ghz_capa, 1861 link_sta); 1862 1863 if (params->he_capa && params->eht_capa) 1864 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1865 (u8 *)params->he_capa, 1866 params->he_capa_len, 1867 params->eht_capa, 1868 params->eht_capa_len, 1869 link_sta); 1870 1871 if (params->opmode_notif_used) { 1872 /* returned value is only needed for rc update, but the 1873 * rc isn't initialized here yet, so ignore it 1874 */ 1875 __ieee80211_vht_handle_opmode(sdata, link_sta, 1876 params->opmode_notif, 1877 sband->band); 1878 } 1879 1880 return ret; 1881 } 1882 1883 static int sta_apply_parameters(struct ieee80211_local *local, 1884 struct sta_info *sta, 1885 struct station_parameters *params) 1886 { 1887 struct ieee80211_sub_if_data *sdata = sta->sdata; 1888 u32 mask, set; 1889 int ret = 0; 1890 1891 mask = params->sta_flags_mask; 1892 set = params->sta_flags_set; 1893 1894 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1895 /* 1896 * In mesh mode, ASSOCIATED isn't part of the nl80211 1897 * API but must follow AUTHENTICATED for driver state. 1898 */ 1899 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1900 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1901 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1902 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1903 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1904 /* 1905 * TDLS -- everything follows authorized, but 1906 * only becoming authorized is possible, not 1907 * going back 1908 */ 1909 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1910 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1911 BIT(NL80211_STA_FLAG_ASSOCIATED); 1912 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1913 BIT(NL80211_STA_FLAG_ASSOCIATED); 1914 } 1915 } 1916 1917 if (mask & BIT(NL80211_STA_FLAG_WME) && 1918 local->hw.queues >= IEEE80211_NUM_ACS) 1919 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1920 1921 /* auth flags will be set later for TDLS, 1922 * and for unassociated stations that move to associated */ 1923 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1924 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1925 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1926 ret = sta_apply_auth_flags(local, sta, mask, set); 1927 if (ret) 1928 return ret; 1929 } 1930 1931 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1932 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1933 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1934 else 1935 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1936 } 1937 1938 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1939 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1940 if (set & BIT(NL80211_STA_FLAG_MFP)) 1941 set_sta_flag(sta, WLAN_STA_MFP); 1942 else 1943 clear_sta_flag(sta, WLAN_STA_MFP); 1944 } 1945 1946 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1947 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1948 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1949 else 1950 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1951 } 1952 1953 /* mark TDLS channel switch support, if the AP allows it */ 1954 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1955 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1956 params->ext_capab_len >= 4 && 1957 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1958 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1959 1960 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1961 !sdata->u.mgd.tdls_wider_bw_prohibited && 1962 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1963 params->ext_capab_len >= 8 && 1964 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1965 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1966 1967 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1968 sta->sta.uapsd_queues = params->uapsd_queues; 1969 sta->sta.max_sp = params->max_sp; 1970 } 1971 1972 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1973 params->ext_capab_len); 1974 1975 /* 1976 * cfg80211 validates this (1-2007) and allows setting the AID 1977 * only when creating a new station entry 1978 */ 1979 if (params->aid) 1980 sta->sta.aid = params->aid; 1981 1982 /* 1983 * Some of the following updates would be racy if called on an 1984 * existing station, via ieee80211_change_station(). However, 1985 * all such changes are rejected by cfg80211 except for updates 1986 * changing the supported rates on an existing but not yet used 1987 * TDLS peer. 1988 */ 1989 1990 if (params->listen_interval >= 0) 1991 sta->listen_interval = params->listen_interval; 1992 1993 ret = sta_link_apply_parameters(local, sta, false, 1994 ¶ms->link_sta_params); 1995 if (ret) 1996 return ret; 1997 1998 if (params->support_p2p_ps >= 0) 1999 sta->sta.support_p2p_ps = params->support_p2p_ps; 2000 2001 if (ieee80211_vif_is_mesh(&sdata->vif)) 2002 sta_apply_mesh_params(local, sta, params); 2003 2004 if (params->airtime_weight) 2005 sta->airtime_weight = params->airtime_weight; 2006 2007 /* set the STA state after all sta info from usermode has been set */ 2008 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2009 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2010 ret = sta_apply_auth_flags(local, sta, mask, set); 2011 if (ret) 2012 return ret; 2013 } 2014 2015 /* Mark the STA as MLO if MLD MAC address is available */ 2016 if (params->link_sta_params.mld_mac) 2017 sta->sta.mlo = true; 2018 2019 return 0; 2020 } 2021 2022 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2023 const u8 *mac, 2024 struct station_parameters *params) 2025 { 2026 struct ieee80211_local *local = wiphy_priv(wiphy); 2027 struct sta_info *sta; 2028 struct ieee80211_sub_if_data *sdata; 2029 int err; 2030 2031 if (params->vlan) { 2032 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2033 2034 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2035 sdata->vif.type != NL80211_IFTYPE_AP) 2036 return -EINVAL; 2037 } else 2038 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2039 2040 if (ether_addr_equal(mac, sdata->vif.addr)) 2041 return -EINVAL; 2042 2043 if (!is_valid_ether_addr(mac)) 2044 return -EINVAL; 2045 2046 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2047 sdata->vif.type == NL80211_IFTYPE_STATION && 2048 !sdata->u.mgd.associated) 2049 return -EINVAL; 2050 2051 /* 2052 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2053 * but we need to have a link_mac in that case as well, so use the 2054 * STA's MAC address in that case. 2055 */ 2056 if (params->link_sta_params.link_id >= 0) 2057 sta = sta_info_alloc_with_link(sdata, mac, 2058 params->link_sta_params.link_id, 2059 params->link_sta_params.link_mac ?: mac, 2060 GFP_KERNEL); 2061 else 2062 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2063 2064 if (!sta) 2065 return -ENOMEM; 2066 2067 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2068 sta->sta.tdls = true; 2069 2070 /* Though the mutex is not needed here (since the station is not 2071 * visible yet), sta_apply_parameters (and inner functions) require 2072 * the mutex due to other paths. 2073 */ 2074 mutex_lock(&local->sta_mtx); 2075 err = sta_apply_parameters(local, sta, params); 2076 mutex_unlock(&local->sta_mtx); 2077 if (err) { 2078 sta_info_free(local, sta); 2079 return err; 2080 } 2081 2082 /* 2083 * for TDLS and for unassociated station, rate control should be 2084 * initialized only when rates are known and station is marked 2085 * authorized/associated 2086 */ 2087 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2088 test_sta_flag(sta, WLAN_STA_ASSOC)) 2089 rate_control_rate_init(sta); 2090 2091 return sta_info_insert(sta); 2092 } 2093 2094 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2095 struct station_del_parameters *params) 2096 { 2097 struct ieee80211_sub_if_data *sdata; 2098 2099 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2100 2101 if (params->mac) 2102 return sta_info_destroy_addr_bss(sdata, params->mac); 2103 2104 sta_info_flush(sdata); 2105 return 0; 2106 } 2107 2108 static int ieee80211_change_station(struct wiphy *wiphy, 2109 struct net_device *dev, const u8 *mac, 2110 struct station_parameters *params) 2111 { 2112 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2113 struct ieee80211_local *local = wiphy_priv(wiphy); 2114 struct sta_info *sta; 2115 struct ieee80211_sub_if_data *vlansdata; 2116 enum cfg80211_station_type statype; 2117 int err; 2118 2119 mutex_lock(&local->sta_mtx); 2120 2121 sta = sta_info_get_bss(sdata, mac); 2122 if (!sta) { 2123 err = -ENOENT; 2124 goto out_err; 2125 } 2126 2127 switch (sdata->vif.type) { 2128 case NL80211_IFTYPE_MESH_POINT: 2129 if (sdata->u.mesh.user_mpm) 2130 statype = CFG80211_STA_MESH_PEER_USER; 2131 else 2132 statype = CFG80211_STA_MESH_PEER_KERNEL; 2133 break; 2134 case NL80211_IFTYPE_ADHOC: 2135 statype = CFG80211_STA_IBSS; 2136 break; 2137 case NL80211_IFTYPE_STATION: 2138 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2139 statype = CFG80211_STA_AP_STA; 2140 break; 2141 } 2142 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2143 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2144 else 2145 statype = CFG80211_STA_TDLS_PEER_SETUP; 2146 break; 2147 case NL80211_IFTYPE_AP: 2148 case NL80211_IFTYPE_AP_VLAN: 2149 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2150 statype = CFG80211_STA_AP_CLIENT; 2151 else 2152 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2153 break; 2154 default: 2155 err = -EOPNOTSUPP; 2156 goto out_err; 2157 } 2158 2159 err = cfg80211_check_station_change(wiphy, params, statype); 2160 if (err) 2161 goto out_err; 2162 2163 if (params->vlan && params->vlan != sta->sdata->dev) { 2164 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2165 2166 if (params->vlan->ieee80211_ptr->use_4addr) { 2167 if (vlansdata->u.vlan.sta) { 2168 err = -EBUSY; 2169 goto out_err; 2170 } 2171 2172 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2173 __ieee80211_check_fast_rx_iface(vlansdata); 2174 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2175 } 2176 2177 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2178 sta->sdata->u.vlan.sta) { 2179 ieee80211_clear_fast_rx(sta); 2180 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2181 } 2182 2183 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2184 ieee80211_vif_dec_num_mcast(sta->sdata); 2185 2186 sta->sdata = vlansdata; 2187 ieee80211_check_fast_xmit(sta); 2188 2189 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2190 ieee80211_vif_inc_num_mcast(sta->sdata); 2191 cfg80211_send_layer2_update(sta->sdata->dev, 2192 sta->sta.addr); 2193 } 2194 } 2195 2196 /* we use sta_info_get_bss() so this might be different */ 2197 if (sdata != sta->sdata) { 2198 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2199 err = sta_apply_parameters(local, sta, params); 2200 mutex_unlock(&sta->sdata->wdev.mtx); 2201 } else { 2202 err = sta_apply_parameters(local, sta, params); 2203 } 2204 if (err) 2205 goto out_err; 2206 2207 mutex_unlock(&local->sta_mtx); 2208 2209 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2210 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2211 ieee80211_recalc_ps(local); 2212 ieee80211_recalc_ps_vif(sdata); 2213 } 2214 2215 return 0; 2216 out_err: 2217 mutex_unlock(&local->sta_mtx); 2218 return err; 2219 } 2220 2221 #ifdef CONFIG_MAC80211_MESH 2222 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2223 const u8 *dst, const u8 *next_hop) 2224 { 2225 struct ieee80211_sub_if_data *sdata; 2226 struct mesh_path *mpath; 2227 struct sta_info *sta; 2228 2229 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2230 2231 rcu_read_lock(); 2232 sta = sta_info_get(sdata, next_hop); 2233 if (!sta) { 2234 rcu_read_unlock(); 2235 return -ENOENT; 2236 } 2237 2238 mpath = mesh_path_add(sdata, dst); 2239 if (IS_ERR(mpath)) { 2240 rcu_read_unlock(); 2241 return PTR_ERR(mpath); 2242 } 2243 2244 mesh_path_fix_nexthop(mpath, sta); 2245 2246 rcu_read_unlock(); 2247 return 0; 2248 } 2249 2250 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2251 const u8 *dst) 2252 { 2253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2254 2255 if (dst) 2256 return mesh_path_del(sdata, dst); 2257 2258 mesh_path_flush_by_iface(sdata); 2259 return 0; 2260 } 2261 2262 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2263 const u8 *dst, const u8 *next_hop) 2264 { 2265 struct ieee80211_sub_if_data *sdata; 2266 struct mesh_path *mpath; 2267 struct sta_info *sta; 2268 2269 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2270 2271 rcu_read_lock(); 2272 2273 sta = sta_info_get(sdata, next_hop); 2274 if (!sta) { 2275 rcu_read_unlock(); 2276 return -ENOENT; 2277 } 2278 2279 mpath = mesh_path_lookup(sdata, dst); 2280 if (!mpath) { 2281 rcu_read_unlock(); 2282 return -ENOENT; 2283 } 2284 2285 mesh_path_fix_nexthop(mpath, sta); 2286 2287 rcu_read_unlock(); 2288 return 0; 2289 } 2290 2291 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2292 struct mpath_info *pinfo) 2293 { 2294 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2295 2296 if (next_hop_sta) 2297 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2298 else 2299 eth_zero_addr(next_hop); 2300 2301 memset(pinfo, 0, sizeof(*pinfo)); 2302 2303 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2304 2305 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2306 MPATH_INFO_SN | 2307 MPATH_INFO_METRIC | 2308 MPATH_INFO_EXPTIME | 2309 MPATH_INFO_DISCOVERY_TIMEOUT | 2310 MPATH_INFO_DISCOVERY_RETRIES | 2311 MPATH_INFO_FLAGS | 2312 MPATH_INFO_HOP_COUNT | 2313 MPATH_INFO_PATH_CHANGE; 2314 2315 pinfo->frame_qlen = mpath->frame_queue.qlen; 2316 pinfo->sn = mpath->sn; 2317 pinfo->metric = mpath->metric; 2318 if (time_before(jiffies, mpath->exp_time)) 2319 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2320 pinfo->discovery_timeout = 2321 jiffies_to_msecs(mpath->discovery_timeout); 2322 pinfo->discovery_retries = mpath->discovery_retries; 2323 if (mpath->flags & MESH_PATH_ACTIVE) 2324 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2325 if (mpath->flags & MESH_PATH_RESOLVING) 2326 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2327 if (mpath->flags & MESH_PATH_SN_VALID) 2328 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2329 if (mpath->flags & MESH_PATH_FIXED) 2330 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2331 if (mpath->flags & MESH_PATH_RESOLVED) 2332 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2333 pinfo->hop_count = mpath->hop_count; 2334 pinfo->path_change_count = mpath->path_change_count; 2335 } 2336 2337 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2338 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2339 2340 { 2341 struct ieee80211_sub_if_data *sdata; 2342 struct mesh_path *mpath; 2343 2344 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2345 2346 rcu_read_lock(); 2347 mpath = mesh_path_lookup(sdata, dst); 2348 if (!mpath) { 2349 rcu_read_unlock(); 2350 return -ENOENT; 2351 } 2352 memcpy(dst, mpath->dst, ETH_ALEN); 2353 mpath_set_pinfo(mpath, next_hop, pinfo); 2354 rcu_read_unlock(); 2355 return 0; 2356 } 2357 2358 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2359 int idx, u8 *dst, u8 *next_hop, 2360 struct mpath_info *pinfo) 2361 { 2362 struct ieee80211_sub_if_data *sdata; 2363 struct mesh_path *mpath; 2364 2365 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2366 2367 rcu_read_lock(); 2368 mpath = mesh_path_lookup_by_idx(sdata, idx); 2369 if (!mpath) { 2370 rcu_read_unlock(); 2371 return -ENOENT; 2372 } 2373 memcpy(dst, mpath->dst, ETH_ALEN); 2374 mpath_set_pinfo(mpath, next_hop, pinfo); 2375 rcu_read_unlock(); 2376 return 0; 2377 } 2378 2379 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2380 struct mpath_info *pinfo) 2381 { 2382 memset(pinfo, 0, sizeof(*pinfo)); 2383 memcpy(mpp, mpath->mpp, ETH_ALEN); 2384 2385 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2386 } 2387 2388 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2389 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2390 2391 { 2392 struct ieee80211_sub_if_data *sdata; 2393 struct mesh_path *mpath; 2394 2395 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2396 2397 rcu_read_lock(); 2398 mpath = mpp_path_lookup(sdata, dst); 2399 if (!mpath) { 2400 rcu_read_unlock(); 2401 return -ENOENT; 2402 } 2403 memcpy(dst, mpath->dst, ETH_ALEN); 2404 mpp_set_pinfo(mpath, mpp, pinfo); 2405 rcu_read_unlock(); 2406 return 0; 2407 } 2408 2409 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2410 int idx, u8 *dst, u8 *mpp, 2411 struct mpath_info *pinfo) 2412 { 2413 struct ieee80211_sub_if_data *sdata; 2414 struct mesh_path *mpath; 2415 2416 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2417 2418 rcu_read_lock(); 2419 mpath = mpp_path_lookup_by_idx(sdata, idx); 2420 if (!mpath) { 2421 rcu_read_unlock(); 2422 return -ENOENT; 2423 } 2424 memcpy(dst, mpath->dst, ETH_ALEN); 2425 mpp_set_pinfo(mpath, mpp, pinfo); 2426 rcu_read_unlock(); 2427 return 0; 2428 } 2429 2430 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2431 struct net_device *dev, 2432 struct mesh_config *conf) 2433 { 2434 struct ieee80211_sub_if_data *sdata; 2435 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2436 2437 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2438 return 0; 2439 } 2440 2441 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2442 { 2443 return (mask >> (parm-1)) & 0x1; 2444 } 2445 2446 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2447 const struct mesh_setup *setup) 2448 { 2449 u8 *new_ie; 2450 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2451 struct ieee80211_sub_if_data, u.mesh); 2452 int i; 2453 2454 /* allocate information elements */ 2455 new_ie = NULL; 2456 2457 if (setup->ie_len) { 2458 new_ie = kmemdup(setup->ie, setup->ie_len, 2459 GFP_KERNEL); 2460 if (!new_ie) 2461 return -ENOMEM; 2462 } 2463 ifmsh->ie_len = setup->ie_len; 2464 ifmsh->ie = new_ie; 2465 2466 /* now copy the rest of the setup parameters */ 2467 ifmsh->mesh_id_len = setup->mesh_id_len; 2468 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2469 ifmsh->mesh_sp_id = setup->sync_method; 2470 ifmsh->mesh_pp_id = setup->path_sel_proto; 2471 ifmsh->mesh_pm_id = setup->path_metric; 2472 ifmsh->user_mpm = setup->user_mpm; 2473 ifmsh->mesh_auth_id = setup->auth_id; 2474 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2475 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2476 if (setup->is_authenticated) 2477 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2478 if (setup->is_secure) 2479 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2480 2481 /* mcast rate setting in Mesh Node */ 2482 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2483 sizeof(setup->mcast_rate)); 2484 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2485 2486 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2487 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2488 2489 sdata->beacon_rate_set = false; 2490 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2491 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2492 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2493 sdata->beacon_rateidx_mask[i] = 2494 setup->beacon_rate.control[i].legacy; 2495 if (sdata->beacon_rateidx_mask[i]) 2496 sdata->beacon_rate_set = true; 2497 } 2498 } 2499 2500 return 0; 2501 } 2502 2503 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2504 struct net_device *dev, u32 mask, 2505 const struct mesh_config *nconf) 2506 { 2507 struct mesh_config *conf; 2508 struct ieee80211_sub_if_data *sdata; 2509 struct ieee80211_if_mesh *ifmsh; 2510 2511 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2512 ifmsh = &sdata->u.mesh; 2513 2514 /* Set the config options which we are interested in setting */ 2515 conf = &(sdata->u.mesh.mshcfg); 2516 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2517 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2518 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2519 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2520 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2521 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2522 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2523 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2524 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2525 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2526 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2527 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2528 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2529 conf->element_ttl = nconf->element_ttl; 2530 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2531 if (ifmsh->user_mpm) 2532 return -EBUSY; 2533 conf->auto_open_plinks = nconf->auto_open_plinks; 2534 } 2535 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2536 conf->dot11MeshNbrOffsetMaxNeighbor = 2537 nconf->dot11MeshNbrOffsetMaxNeighbor; 2538 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2539 conf->dot11MeshHWMPmaxPREQretries = 2540 nconf->dot11MeshHWMPmaxPREQretries; 2541 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2542 conf->path_refresh_time = nconf->path_refresh_time; 2543 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2544 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2545 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2546 conf->dot11MeshHWMPactivePathTimeout = 2547 nconf->dot11MeshHWMPactivePathTimeout; 2548 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2549 conf->dot11MeshHWMPpreqMinInterval = 2550 nconf->dot11MeshHWMPpreqMinInterval; 2551 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2552 conf->dot11MeshHWMPperrMinInterval = 2553 nconf->dot11MeshHWMPperrMinInterval; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2555 mask)) 2556 conf->dot11MeshHWMPnetDiameterTraversalTime = 2557 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2558 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2559 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2560 ieee80211_mesh_root_setup(ifmsh); 2561 } 2562 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2563 /* our current gate announcement implementation rides on root 2564 * announcements, so require this ifmsh to also be a root node 2565 * */ 2566 if (nconf->dot11MeshGateAnnouncementProtocol && 2567 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2568 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2569 ieee80211_mesh_root_setup(ifmsh); 2570 } 2571 conf->dot11MeshGateAnnouncementProtocol = 2572 nconf->dot11MeshGateAnnouncementProtocol; 2573 } 2574 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2575 conf->dot11MeshHWMPRannInterval = 2576 nconf->dot11MeshHWMPRannInterval; 2577 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2578 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2579 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2580 /* our RSSI threshold implementation is supported only for 2581 * devices that report signal in dBm. 2582 */ 2583 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2584 return -ENOTSUPP; 2585 conf->rssi_threshold = nconf->rssi_threshold; 2586 } 2587 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2588 conf->ht_opmode = nconf->ht_opmode; 2589 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2590 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2591 BSS_CHANGED_HT); 2592 } 2593 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2594 conf->dot11MeshHWMPactivePathToRootTimeout = 2595 nconf->dot11MeshHWMPactivePathToRootTimeout; 2596 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2597 conf->dot11MeshHWMProotInterval = 2598 nconf->dot11MeshHWMProotInterval; 2599 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2600 conf->dot11MeshHWMPconfirmationInterval = 2601 nconf->dot11MeshHWMPconfirmationInterval; 2602 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2603 conf->power_mode = nconf->power_mode; 2604 ieee80211_mps_local_status_update(sdata); 2605 } 2606 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2607 conf->dot11MeshAwakeWindowDuration = 2608 nconf->dot11MeshAwakeWindowDuration; 2609 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2610 conf->plink_timeout = nconf->plink_timeout; 2611 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2612 conf->dot11MeshConnectedToMeshGate = 2613 nconf->dot11MeshConnectedToMeshGate; 2614 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2615 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2616 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2617 conf->dot11MeshConnectedToAuthServer = 2618 nconf->dot11MeshConnectedToAuthServer; 2619 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2620 return 0; 2621 } 2622 2623 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2624 const struct mesh_config *conf, 2625 const struct mesh_setup *setup) 2626 { 2627 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2628 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2629 int err; 2630 2631 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2632 err = copy_mesh_setup(ifmsh, setup); 2633 if (err) 2634 return err; 2635 2636 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2637 2638 /* can mesh use other SMPS modes? */ 2639 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2640 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2641 2642 mutex_lock(&sdata->local->mtx); 2643 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2644 IEEE80211_CHANCTX_SHARED); 2645 mutex_unlock(&sdata->local->mtx); 2646 if (err) 2647 return err; 2648 2649 return ieee80211_start_mesh(sdata); 2650 } 2651 2652 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2653 { 2654 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2655 2656 ieee80211_stop_mesh(sdata); 2657 mutex_lock(&sdata->local->mtx); 2658 ieee80211_link_release_channel(&sdata->deflink); 2659 kfree(sdata->u.mesh.ie); 2660 mutex_unlock(&sdata->local->mtx); 2661 2662 return 0; 2663 } 2664 #endif 2665 2666 static int ieee80211_change_bss(struct wiphy *wiphy, 2667 struct net_device *dev, 2668 struct bss_parameters *params) 2669 { 2670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2671 struct ieee80211_link_data *link; 2672 struct ieee80211_supported_band *sband; 2673 u64 changed = 0; 2674 2675 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2676 if (IS_ERR(link)) 2677 return PTR_ERR(link); 2678 2679 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2680 return -ENOENT; 2681 2682 sband = ieee80211_get_link_sband(link); 2683 if (!sband) 2684 return -EINVAL; 2685 2686 if (params->basic_rates) { 2687 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2688 wiphy->bands[sband->band], 2689 params->basic_rates, 2690 params->basic_rates_len, 2691 &link->conf->basic_rates)) 2692 return -EINVAL; 2693 changed |= BSS_CHANGED_BASIC_RATES; 2694 ieee80211_check_rate_mask(link); 2695 } 2696 2697 if (params->use_cts_prot >= 0) { 2698 link->conf->use_cts_prot = params->use_cts_prot; 2699 changed |= BSS_CHANGED_ERP_CTS_PROT; 2700 } 2701 if (params->use_short_preamble >= 0) { 2702 link->conf->use_short_preamble = params->use_short_preamble; 2703 changed |= BSS_CHANGED_ERP_PREAMBLE; 2704 } 2705 2706 if (!link->conf->use_short_slot && 2707 (sband->band == NL80211_BAND_5GHZ || 2708 sband->band == NL80211_BAND_6GHZ)) { 2709 link->conf->use_short_slot = true; 2710 changed |= BSS_CHANGED_ERP_SLOT; 2711 } 2712 2713 if (params->use_short_slot_time >= 0) { 2714 link->conf->use_short_slot = params->use_short_slot_time; 2715 changed |= BSS_CHANGED_ERP_SLOT; 2716 } 2717 2718 if (params->ap_isolate >= 0) { 2719 if (params->ap_isolate) 2720 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2721 else 2722 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2723 ieee80211_check_fast_rx_iface(sdata); 2724 } 2725 2726 if (params->ht_opmode >= 0) { 2727 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2728 changed |= BSS_CHANGED_HT; 2729 } 2730 2731 if (params->p2p_ctwindow >= 0) { 2732 link->conf->p2p_noa_attr.oppps_ctwindow &= 2733 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2734 link->conf->p2p_noa_attr.oppps_ctwindow |= 2735 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2736 changed |= BSS_CHANGED_P2P_PS; 2737 } 2738 2739 if (params->p2p_opp_ps > 0) { 2740 link->conf->p2p_noa_attr.oppps_ctwindow |= 2741 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2742 changed |= BSS_CHANGED_P2P_PS; 2743 } else if (params->p2p_opp_ps == 0) { 2744 link->conf->p2p_noa_attr.oppps_ctwindow &= 2745 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2746 changed |= BSS_CHANGED_P2P_PS; 2747 } 2748 2749 ieee80211_link_info_change_notify(sdata, link, changed); 2750 2751 return 0; 2752 } 2753 2754 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2755 struct net_device *dev, 2756 struct ieee80211_txq_params *params) 2757 { 2758 struct ieee80211_local *local = wiphy_priv(wiphy); 2759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2760 struct ieee80211_link_data *link = 2761 ieee80211_link_or_deflink(sdata, params->link_id, true); 2762 struct ieee80211_tx_queue_params p; 2763 2764 if (!local->ops->conf_tx) 2765 return -EOPNOTSUPP; 2766 2767 if (local->hw.queues < IEEE80211_NUM_ACS) 2768 return -EOPNOTSUPP; 2769 2770 if (IS_ERR(link)) 2771 return PTR_ERR(link); 2772 2773 memset(&p, 0, sizeof(p)); 2774 p.aifs = params->aifs; 2775 p.cw_max = params->cwmax; 2776 p.cw_min = params->cwmin; 2777 p.txop = params->txop; 2778 2779 /* 2780 * Setting tx queue params disables u-apsd because it's only 2781 * called in master mode. 2782 */ 2783 p.uapsd = false; 2784 2785 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2786 2787 link->tx_conf[params->ac] = p; 2788 if (drv_conf_tx(local, link, params->ac, &p)) { 2789 wiphy_debug(local->hw.wiphy, 2790 "failed to set TX queue parameters for AC %d\n", 2791 params->ac); 2792 return -EINVAL; 2793 } 2794 2795 ieee80211_link_info_change_notify(sdata, link, 2796 BSS_CHANGED_QOS); 2797 2798 return 0; 2799 } 2800 2801 #ifdef CONFIG_PM 2802 static int ieee80211_suspend(struct wiphy *wiphy, 2803 struct cfg80211_wowlan *wowlan) 2804 { 2805 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2806 } 2807 2808 static int ieee80211_resume(struct wiphy *wiphy) 2809 { 2810 return __ieee80211_resume(wiphy_priv(wiphy)); 2811 } 2812 #else 2813 #define ieee80211_suspend NULL 2814 #define ieee80211_resume NULL 2815 #endif 2816 2817 static int ieee80211_scan(struct wiphy *wiphy, 2818 struct cfg80211_scan_request *req) 2819 { 2820 struct ieee80211_sub_if_data *sdata; 2821 2822 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2823 2824 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2825 case NL80211_IFTYPE_STATION: 2826 case NL80211_IFTYPE_ADHOC: 2827 case NL80211_IFTYPE_MESH_POINT: 2828 case NL80211_IFTYPE_P2P_CLIENT: 2829 case NL80211_IFTYPE_P2P_DEVICE: 2830 break; 2831 case NL80211_IFTYPE_P2P_GO: 2832 if (sdata->local->ops->hw_scan) 2833 break; 2834 /* 2835 * FIXME: implement NoA while scanning in software, 2836 * for now fall through to allow scanning only when 2837 * beaconing hasn't been configured yet 2838 */ 2839 fallthrough; 2840 case NL80211_IFTYPE_AP: 2841 /* 2842 * If the scan has been forced (and the driver supports 2843 * forcing), don't care about being beaconing already. 2844 * This will create problems to the attached stations (e.g. all 2845 * the frames sent while scanning on other channel will be 2846 * lost) 2847 */ 2848 if (sdata->deflink.u.ap.beacon && 2849 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2850 !(req->flags & NL80211_SCAN_FLAG_AP))) 2851 return -EOPNOTSUPP; 2852 break; 2853 case NL80211_IFTYPE_NAN: 2854 default: 2855 return -EOPNOTSUPP; 2856 } 2857 2858 return ieee80211_request_scan(sdata, req); 2859 } 2860 2861 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2862 { 2863 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2864 } 2865 2866 static int 2867 ieee80211_sched_scan_start(struct wiphy *wiphy, 2868 struct net_device *dev, 2869 struct cfg80211_sched_scan_request *req) 2870 { 2871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2872 2873 if (!sdata->local->ops->sched_scan_start) 2874 return -EOPNOTSUPP; 2875 2876 return ieee80211_request_sched_scan_start(sdata, req); 2877 } 2878 2879 static int 2880 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2881 u64 reqid) 2882 { 2883 struct ieee80211_local *local = wiphy_priv(wiphy); 2884 2885 if (!local->ops->sched_scan_stop) 2886 return -EOPNOTSUPP; 2887 2888 return ieee80211_request_sched_scan_stop(local); 2889 } 2890 2891 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2892 struct cfg80211_auth_request *req) 2893 { 2894 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2895 } 2896 2897 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2898 struct cfg80211_assoc_request *req) 2899 { 2900 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2901 } 2902 2903 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2904 struct cfg80211_deauth_request *req) 2905 { 2906 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2907 } 2908 2909 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2910 struct cfg80211_disassoc_request *req) 2911 { 2912 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2913 } 2914 2915 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2916 struct cfg80211_ibss_params *params) 2917 { 2918 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2919 } 2920 2921 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2922 { 2923 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2924 } 2925 2926 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2927 struct ocb_setup *setup) 2928 { 2929 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2930 } 2931 2932 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2933 { 2934 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2935 } 2936 2937 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2938 int rate[NUM_NL80211_BANDS]) 2939 { 2940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2941 2942 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2943 sizeof(int) * NUM_NL80211_BANDS); 2944 2945 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2946 BSS_CHANGED_MCAST_RATE); 2947 2948 return 0; 2949 } 2950 2951 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2952 { 2953 struct ieee80211_local *local = wiphy_priv(wiphy); 2954 int err; 2955 2956 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2957 ieee80211_check_fast_xmit_all(local); 2958 2959 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2960 2961 if (err) { 2962 ieee80211_check_fast_xmit_all(local); 2963 return err; 2964 } 2965 } 2966 2967 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2968 (changed & WIPHY_PARAM_DYN_ACK)) { 2969 s16 coverage_class; 2970 2971 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2972 wiphy->coverage_class : -1; 2973 err = drv_set_coverage_class(local, coverage_class); 2974 2975 if (err) 2976 return err; 2977 } 2978 2979 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2980 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2981 2982 if (err) 2983 return err; 2984 } 2985 2986 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2987 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2988 return -EINVAL; 2989 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2990 } 2991 if (changed & WIPHY_PARAM_RETRY_LONG) { 2992 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2993 return -EINVAL; 2994 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2995 } 2996 if (changed & 2997 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2998 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2999 3000 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3001 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3002 WIPHY_PARAM_TXQ_QUANTUM)) 3003 ieee80211_txq_set_params(local); 3004 3005 return 0; 3006 } 3007 3008 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3009 struct wireless_dev *wdev, 3010 enum nl80211_tx_power_setting type, int mbm) 3011 { 3012 struct ieee80211_local *local = wiphy_priv(wiphy); 3013 struct ieee80211_sub_if_data *sdata; 3014 enum nl80211_tx_power_setting txp_type = type; 3015 bool update_txp_type = false; 3016 bool has_monitor = false; 3017 3018 if (wdev) { 3019 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3020 3021 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3022 sdata = wiphy_dereference(local->hw.wiphy, 3023 local->monitor_sdata); 3024 if (!sdata) 3025 return -EOPNOTSUPP; 3026 } 3027 3028 switch (type) { 3029 case NL80211_TX_POWER_AUTOMATIC: 3030 sdata->deflink.user_power_level = 3031 IEEE80211_UNSET_POWER_LEVEL; 3032 txp_type = NL80211_TX_POWER_LIMITED; 3033 break; 3034 case NL80211_TX_POWER_LIMITED: 3035 case NL80211_TX_POWER_FIXED: 3036 if (mbm < 0 || (mbm % 100)) 3037 return -EOPNOTSUPP; 3038 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3039 break; 3040 } 3041 3042 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3043 update_txp_type = true; 3044 sdata->vif.bss_conf.txpower_type = txp_type; 3045 } 3046 3047 ieee80211_recalc_txpower(sdata, update_txp_type); 3048 3049 return 0; 3050 } 3051 3052 switch (type) { 3053 case NL80211_TX_POWER_AUTOMATIC: 3054 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3055 txp_type = NL80211_TX_POWER_LIMITED; 3056 break; 3057 case NL80211_TX_POWER_LIMITED: 3058 case NL80211_TX_POWER_FIXED: 3059 if (mbm < 0 || (mbm % 100)) 3060 return -EOPNOTSUPP; 3061 local->user_power_level = MBM_TO_DBM(mbm); 3062 break; 3063 } 3064 3065 mutex_lock(&local->iflist_mtx); 3066 list_for_each_entry(sdata, &local->interfaces, list) { 3067 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3068 has_monitor = true; 3069 continue; 3070 } 3071 sdata->deflink.user_power_level = local->user_power_level; 3072 if (txp_type != sdata->vif.bss_conf.txpower_type) 3073 update_txp_type = true; 3074 sdata->vif.bss_conf.txpower_type = txp_type; 3075 } 3076 list_for_each_entry(sdata, &local->interfaces, list) { 3077 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3078 continue; 3079 ieee80211_recalc_txpower(sdata, update_txp_type); 3080 } 3081 mutex_unlock(&local->iflist_mtx); 3082 3083 if (has_monitor) { 3084 sdata = wiphy_dereference(local->hw.wiphy, 3085 local->monitor_sdata); 3086 if (sdata) { 3087 sdata->deflink.user_power_level = local->user_power_level; 3088 if (txp_type != sdata->vif.bss_conf.txpower_type) 3089 update_txp_type = true; 3090 sdata->vif.bss_conf.txpower_type = txp_type; 3091 3092 ieee80211_recalc_txpower(sdata, update_txp_type); 3093 } 3094 } 3095 3096 return 0; 3097 } 3098 3099 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3100 struct wireless_dev *wdev, 3101 int *dbm) 3102 { 3103 struct ieee80211_local *local = wiphy_priv(wiphy); 3104 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3105 3106 if (local->ops->get_txpower) 3107 return drv_get_txpower(local, sdata, dbm); 3108 3109 if (!local->use_chanctx) 3110 *dbm = local->hw.conf.power_level; 3111 else 3112 *dbm = sdata->vif.bss_conf.txpower; 3113 3114 return 0; 3115 } 3116 3117 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3118 { 3119 struct ieee80211_local *local = wiphy_priv(wiphy); 3120 3121 drv_rfkill_poll(local); 3122 } 3123 3124 #ifdef CONFIG_NL80211_TESTMODE 3125 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3126 struct wireless_dev *wdev, 3127 void *data, int len) 3128 { 3129 struct ieee80211_local *local = wiphy_priv(wiphy); 3130 struct ieee80211_vif *vif = NULL; 3131 3132 if (!local->ops->testmode_cmd) 3133 return -EOPNOTSUPP; 3134 3135 if (wdev) { 3136 struct ieee80211_sub_if_data *sdata; 3137 3138 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3139 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3140 vif = &sdata->vif; 3141 } 3142 3143 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3144 } 3145 3146 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3147 struct sk_buff *skb, 3148 struct netlink_callback *cb, 3149 void *data, int len) 3150 { 3151 struct ieee80211_local *local = wiphy_priv(wiphy); 3152 3153 if (!local->ops->testmode_dump) 3154 return -EOPNOTSUPP; 3155 3156 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3157 } 3158 #endif 3159 3160 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3161 struct ieee80211_link_data *link, 3162 enum ieee80211_smps_mode smps_mode) 3163 { 3164 const u8 *ap; 3165 enum ieee80211_smps_mode old_req; 3166 int err; 3167 struct sta_info *sta; 3168 bool tdls_peer_found = false; 3169 3170 lockdep_assert_held(&sdata->wdev.mtx); 3171 3172 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3173 return -EINVAL; 3174 3175 old_req = link->u.mgd.req_smps; 3176 link->u.mgd.req_smps = smps_mode; 3177 3178 if (old_req == smps_mode && 3179 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3180 return 0; 3181 3182 /* 3183 * If not associated, or current association is not an HT 3184 * association, there's no need to do anything, just store 3185 * the new value until we associate. 3186 */ 3187 if (!sdata->u.mgd.associated || 3188 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3189 return 0; 3190 3191 ap = link->u.mgd.bssid; 3192 3193 rcu_read_lock(); 3194 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3195 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3196 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3197 continue; 3198 3199 tdls_peer_found = true; 3200 break; 3201 } 3202 rcu_read_unlock(); 3203 3204 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3205 if (tdls_peer_found || !sdata->u.mgd.powersave) 3206 smps_mode = IEEE80211_SMPS_OFF; 3207 else 3208 smps_mode = IEEE80211_SMPS_DYNAMIC; 3209 } 3210 3211 /* send SM PS frame to AP */ 3212 err = ieee80211_send_smps_action(sdata, smps_mode, 3213 ap, ap); 3214 if (err) 3215 link->u.mgd.req_smps = old_req; 3216 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3217 ieee80211_teardown_tdls_peers(sdata); 3218 3219 return err; 3220 } 3221 3222 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3223 bool enabled, int timeout) 3224 { 3225 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3226 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3227 unsigned int link_id; 3228 3229 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3230 return -EOPNOTSUPP; 3231 3232 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3233 return -EOPNOTSUPP; 3234 3235 if (enabled == sdata->u.mgd.powersave && 3236 timeout == local->dynamic_ps_forced_timeout) 3237 return 0; 3238 3239 sdata->u.mgd.powersave = enabled; 3240 local->dynamic_ps_forced_timeout = timeout; 3241 3242 /* no change, but if automatic follow powersave */ 3243 sdata_lock(sdata); 3244 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3245 struct ieee80211_link_data *link; 3246 3247 link = sdata_dereference(sdata->link[link_id], sdata); 3248 3249 if (!link) 3250 continue; 3251 __ieee80211_request_smps_mgd(sdata, link, 3252 link->u.mgd.req_smps); 3253 } 3254 sdata_unlock(sdata); 3255 3256 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3257 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3258 3259 ieee80211_recalc_ps(local); 3260 ieee80211_recalc_ps_vif(sdata); 3261 ieee80211_check_fast_rx_iface(sdata); 3262 3263 return 0; 3264 } 3265 3266 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3267 struct net_device *dev, 3268 s32 rssi_thold, u32 rssi_hyst) 3269 { 3270 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3271 struct ieee80211_vif *vif = &sdata->vif; 3272 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3273 3274 if (rssi_thold == bss_conf->cqm_rssi_thold && 3275 rssi_hyst == bss_conf->cqm_rssi_hyst) 3276 return 0; 3277 3278 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3279 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3280 return -EOPNOTSUPP; 3281 3282 bss_conf->cqm_rssi_thold = rssi_thold; 3283 bss_conf->cqm_rssi_hyst = rssi_hyst; 3284 bss_conf->cqm_rssi_low = 0; 3285 bss_conf->cqm_rssi_high = 0; 3286 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3287 3288 /* tell the driver upon association, unless already associated */ 3289 if (sdata->u.mgd.associated && 3290 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3291 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3292 BSS_CHANGED_CQM); 3293 3294 return 0; 3295 } 3296 3297 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3298 struct net_device *dev, 3299 s32 rssi_low, s32 rssi_high) 3300 { 3301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3302 struct ieee80211_vif *vif = &sdata->vif; 3303 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3304 3305 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3306 return -EOPNOTSUPP; 3307 3308 bss_conf->cqm_rssi_low = rssi_low; 3309 bss_conf->cqm_rssi_high = rssi_high; 3310 bss_conf->cqm_rssi_thold = 0; 3311 bss_conf->cqm_rssi_hyst = 0; 3312 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3313 3314 /* tell the driver upon association, unless already associated */ 3315 if (sdata->u.mgd.associated && 3316 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3317 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3318 BSS_CHANGED_CQM); 3319 3320 return 0; 3321 } 3322 3323 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3324 struct net_device *dev, 3325 unsigned int link_id, 3326 const u8 *addr, 3327 const struct cfg80211_bitrate_mask *mask) 3328 { 3329 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3330 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3331 int i, ret; 3332 3333 if (!ieee80211_sdata_running(sdata)) 3334 return -ENETDOWN; 3335 3336 /* 3337 * If active validate the setting and reject it if it doesn't leave 3338 * at least one basic rate usable, since we really have to be able 3339 * to send something, and if we're an AP we have to be able to do 3340 * so at a basic rate so that all clients can receive it. 3341 */ 3342 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3343 sdata->vif.bss_conf.chandef.chan) { 3344 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3345 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3346 3347 if (!(mask->control[band].legacy & basic_rates)) 3348 return -EINVAL; 3349 } 3350 3351 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3352 ret = drv_set_bitrate_mask(local, sdata, mask); 3353 if (ret) 3354 return ret; 3355 } 3356 3357 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3358 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3359 int j; 3360 3361 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3362 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3363 sizeof(mask->control[i].ht_mcs)); 3364 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3365 mask->control[i].vht_mcs, 3366 sizeof(mask->control[i].vht_mcs)); 3367 3368 sdata->rc_has_mcs_mask[i] = false; 3369 sdata->rc_has_vht_mcs_mask[i] = false; 3370 if (!sband) 3371 continue; 3372 3373 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3374 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3375 sdata->rc_has_mcs_mask[i] = true; 3376 break; 3377 } 3378 } 3379 3380 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3381 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3382 sdata->rc_has_vht_mcs_mask[i] = true; 3383 break; 3384 } 3385 } 3386 } 3387 3388 return 0; 3389 } 3390 3391 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3392 struct net_device *dev, 3393 struct cfg80211_chan_def *chandef, 3394 u32 cac_time_ms) 3395 { 3396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3397 struct ieee80211_local *local = sdata->local; 3398 int err; 3399 3400 mutex_lock(&local->mtx); 3401 if (!list_empty(&local->roc_list) || local->scanning) { 3402 err = -EBUSY; 3403 goto out_unlock; 3404 } 3405 3406 /* whatever, but channel contexts should not complain about that one */ 3407 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3408 sdata->deflink.needed_rx_chains = local->rx_chains; 3409 3410 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3411 IEEE80211_CHANCTX_SHARED); 3412 if (err) 3413 goto out_unlock; 3414 3415 ieee80211_queue_delayed_work(&sdata->local->hw, 3416 &sdata->deflink.dfs_cac_timer_work, 3417 msecs_to_jiffies(cac_time_ms)); 3418 3419 out_unlock: 3420 mutex_unlock(&local->mtx); 3421 return err; 3422 } 3423 3424 static void ieee80211_end_cac(struct wiphy *wiphy, 3425 struct net_device *dev) 3426 { 3427 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3428 struct ieee80211_local *local = sdata->local; 3429 3430 mutex_lock(&local->mtx); 3431 list_for_each_entry(sdata, &local->interfaces, list) { 3432 /* it might be waiting for the local->mtx, but then 3433 * by the time it gets it, sdata->wdev.cac_started 3434 * will no longer be true 3435 */ 3436 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3437 3438 if (sdata->wdev.cac_started) { 3439 ieee80211_link_release_channel(&sdata->deflink); 3440 sdata->wdev.cac_started = false; 3441 } 3442 } 3443 mutex_unlock(&local->mtx); 3444 } 3445 3446 static struct cfg80211_beacon_data * 3447 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3448 { 3449 struct cfg80211_beacon_data *new_beacon; 3450 u8 *pos; 3451 int len; 3452 3453 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3454 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3455 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3456 3457 if (beacon->mbssid_ies) 3458 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3459 beacon->rnr_ies, 3460 beacon->mbssid_ies->cnt); 3461 3462 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3463 if (!new_beacon) 3464 return NULL; 3465 3466 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3467 new_beacon->mbssid_ies = 3468 kzalloc(struct_size(new_beacon->mbssid_ies, 3469 elem, beacon->mbssid_ies->cnt), 3470 GFP_KERNEL); 3471 if (!new_beacon->mbssid_ies) { 3472 kfree(new_beacon); 3473 return NULL; 3474 } 3475 3476 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3477 new_beacon->rnr_ies = 3478 kzalloc(struct_size(new_beacon->rnr_ies, 3479 elem, beacon->rnr_ies->cnt), 3480 GFP_KERNEL); 3481 if (!new_beacon->rnr_ies) { 3482 kfree(new_beacon->mbssid_ies); 3483 kfree(new_beacon); 3484 return NULL; 3485 } 3486 } 3487 } 3488 3489 pos = (u8 *)(new_beacon + 1); 3490 if (beacon->head_len) { 3491 new_beacon->head_len = beacon->head_len; 3492 new_beacon->head = pos; 3493 memcpy(pos, beacon->head, beacon->head_len); 3494 pos += beacon->head_len; 3495 } 3496 if (beacon->tail_len) { 3497 new_beacon->tail_len = beacon->tail_len; 3498 new_beacon->tail = pos; 3499 memcpy(pos, beacon->tail, beacon->tail_len); 3500 pos += beacon->tail_len; 3501 } 3502 if (beacon->beacon_ies_len) { 3503 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3504 new_beacon->beacon_ies = pos; 3505 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3506 pos += beacon->beacon_ies_len; 3507 } 3508 if (beacon->proberesp_ies_len) { 3509 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3510 new_beacon->proberesp_ies = pos; 3511 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3512 pos += beacon->proberesp_ies_len; 3513 } 3514 if (beacon->assocresp_ies_len) { 3515 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3516 new_beacon->assocresp_ies = pos; 3517 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3518 pos += beacon->assocresp_ies_len; 3519 } 3520 if (beacon->probe_resp_len) { 3521 new_beacon->probe_resp_len = beacon->probe_resp_len; 3522 new_beacon->probe_resp = pos; 3523 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3524 pos += beacon->probe_resp_len; 3525 } 3526 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3527 pos += ieee80211_copy_mbssid_beacon(pos, 3528 new_beacon->mbssid_ies, 3529 beacon->mbssid_ies); 3530 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3531 pos += ieee80211_copy_rnr_beacon(pos, 3532 new_beacon->rnr_ies, 3533 beacon->rnr_ies); 3534 } 3535 3536 /* might copy -1, meaning no changes requested */ 3537 new_beacon->ftm_responder = beacon->ftm_responder; 3538 if (beacon->lci) { 3539 new_beacon->lci_len = beacon->lci_len; 3540 new_beacon->lci = pos; 3541 memcpy(pos, beacon->lci, beacon->lci_len); 3542 pos += beacon->lci_len; 3543 } 3544 if (beacon->civicloc) { 3545 new_beacon->civicloc_len = beacon->civicloc_len; 3546 new_beacon->civicloc = pos; 3547 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3548 pos += beacon->civicloc_len; 3549 } 3550 3551 return new_beacon; 3552 } 3553 3554 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3555 { 3556 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3557 struct ieee80211_local *local = sdata->local; 3558 3559 rcu_read_lock(); 3560 3561 if (vif->mbssid_tx_vif == vif) { 3562 /* Trigger ieee80211_csa_finish() on the non-transmitting 3563 * interfaces when channel switch is received on 3564 * transmitting interface 3565 */ 3566 struct ieee80211_sub_if_data *iter; 3567 3568 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3569 if (!ieee80211_sdata_running(iter)) 3570 continue; 3571 3572 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3573 continue; 3574 3575 ieee80211_queue_work(&iter->local->hw, 3576 &iter->deflink.csa_finalize_work); 3577 } 3578 } 3579 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3580 3581 rcu_read_unlock(); 3582 } 3583 EXPORT_SYMBOL(ieee80211_csa_finish); 3584 3585 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3586 { 3587 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3588 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3589 struct ieee80211_local *local = sdata->local; 3590 3591 sdata->deflink.csa_block_tx = block_tx; 3592 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3593 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3594 } 3595 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3596 3597 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3598 u64 *changed) 3599 { 3600 int err; 3601 3602 switch (sdata->vif.type) { 3603 case NL80211_IFTYPE_AP: 3604 if (!sdata->deflink.u.ap.next_beacon) 3605 return -EINVAL; 3606 3607 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3608 sdata->deflink.u.ap.next_beacon, 3609 NULL, NULL, changed); 3610 ieee80211_free_next_beacon(&sdata->deflink); 3611 3612 if (err < 0) 3613 return err; 3614 break; 3615 case NL80211_IFTYPE_ADHOC: 3616 err = ieee80211_ibss_finish_csa(sdata, changed); 3617 if (err < 0) 3618 return err; 3619 break; 3620 #ifdef CONFIG_MAC80211_MESH 3621 case NL80211_IFTYPE_MESH_POINT: 3622 err = ieee80211_mesh_finish_csa(sdata, changed); 3623 if (err < 0) 3624 return err; 3625 break; 3626 #endif 3627 default: 3628 WARN_ON(1); 3629 return -EINVAL; 3630 } 3631 3632 return 0; 3633 } 3634 3635 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3636 { 3637 struct ieee80211_local *local = sdata->local; 3638 u64 changed = 0; 3639 int err; 3640 3641 sdata_assert_lock(sdata); 3642 lockdep_assert_held(&local->mtx); 3643 lockdep_assert_held(&local->chanctx_mtx); 3644 3645 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3646 sdata->vif.bss_conf.eht_puncturing = 3647 sdata->vif.bss_conf.csa_punct_bitmap; 3648 changed |= BSS_CHANGED_EHT_PUNCTURING; 3649 } 3650 3651 /* 3652 * using reservation isn't immediate as it may be deferred until later 3653 * with multi-vif. once reservation is complete it will re-schedule the 3654 * work with no reserved_chanctx so verify chandef to check if it 3655 * completed successfully 3656 */ 3657 3658 if (sdata->deflink.reserved_chanctx) { 3659 /* 3660 * with multi-vif csa driver may call ieee80211_csa_finish() 3661 * many times while waiting for other interfaces to use their 3662 * reservations 3663 */ 3664 if (sdata->deflink.reserved_ready) 3665 return 0; 3666 3667 return ieee80211_link_use_reserved_context(&sdata->deflink); 3668 } 3669 3670 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3671 &sdata->deflink.csa_chandef)) 3672 return -EINVAL; 3673 3674 sdata->vif.bss_conf.csa_active = false; 3675 3676 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3677 if (err) 3678 return err; 3679 3680 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3681 3682 if (sdata->deflink.csa_block_tx) { 3683 ieee80211_wake_vif_queues(local, sdata, 3684 IEEE80211_QUEUE_STOP_REASON_CSA); 3685 sdata->deflink.csa_block_tx = false; 3686 } 3687 3688 err = drv_post_channel_switch(sdata); 3689 if (err) 3690 return err; 3691 3692 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0, 3693 sdata->vif.bss_conf.eht_puncturing); 3694 3695 return 0; 3696 } 3697 3698 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3699 { 3700 if (__ieee80211_csa_finalize(sdata)) { 3701 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3702 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3703 GFP_KERNEL); 3704 } 3705 } 3706 3707 void ieee80211_csa_finalize_work(struct work_struct *work) 3708 { 3709 struct ieee80211_sub_if_data *sdata = 3710 container_of(work, struct ieee80211_sub_if_data, 3711 deflink.csa_finalize_work); 3712 struct ieee80211_local *local = sdata->local; 3713 3714 sdata_lock(sdata); 3715 mutex_lock(&local->mtx); 3716 mutex_lock(&local->chanctx_mtx); 3717 3718 /* AP might have been stopped while waiting for the lock. */ 3719 if (!sdata->vif.bss_conf.csa_active) 3720 goto unlock; 3721 3722 if (!ieee80211_sdata_running(sdata)) 3723 goto unlock; 3724 3725 ieee80211_csa_finalize(sdata); 3726 3727 unlock: 3728 mutex_unlock(&local->chanctx_mtx); 3729 mutex_unlock(&local->mtx); 3730 sdata_unlock(sdata); 3731 } 3732 3733 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3734 struct cfg80211_csa_settings *params, 3735 u64 *changed) 3736 { 3737 struct ieee80211_csa_settings csa = {}; 3738 int err; 3739 3740 switch (sdata->vif.type) { 3741 case NL80211_IFTYPE_AP: 3742 sdata->deflink.u.ap.next_beacon = 3743 cfg80211_beacon_dup(¶ms->beacon_after); 3744 if (!sdata->deflink.u.ap.next_beacon) 3745 return -ENOMEM; 3746 3747 /* 3748 * With a count of 0, we don't have to wait for any 3749 * TBTT before switching, so complete the CSA 3750 * immediately. In theory, with a count == 1 we 3751 * should delay the switch until just before the next 3752 * TBTT, but that would complicate things so we switch 3753 * immediately too. If we would delay the switch 3754 * until the next TBTT, we would have to set the probe 3755 * response here. 3756 * 3757 * TODO: A channel switch with count <= 1 without 3758 * sending a CSA action frame is kind of useless, 3759 * because the clients won't know we're changing 3760 * channels. The action frame must be implemented 3761 * either here or in the userspace. 3762 */ 3763 if (params->count <= 1) 3764 break; 3765 3766 if ((params->n_counter_offsets_beacon > 3767 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3768 (params->n_counter_offsets_presp > 3769 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3770 ieee80211_free_next_beacon(&sdata->deflink); 3771 return -EINVAL; 3772 } 3773 3774 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3775 csa.counter_offsets_presp = params->counter_offsets_presp; 3776 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3777 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3778 csa.count = params->count; 3779 3780 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3781 ¶ms->beacon_csa, &csa, 3782 NULL, changed); 3783 if (err < 0) { 3784 ieee80211_free_next_beacon(&sdata->deflink); 3785 return err; 3786 } 3787 3788 break; 3789 case NL80211_IFTYPE_ADHOC: 3790 if (!sdata->vif.cfg.ibss_joined) 3791 return -EINVAL; 3792 3793 if (params->chandef.width != sdata->u.ibss.chandef.width) 3794 return -EINVAL; 3795 3796 switch (params->chandef.width) { 3797 case NL80211_CHAN_WIDTH_40: 3798 if (cfg80211_get_chandef_type(¶ms->chandef) != 3799 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3800 return -EINVAL; 3801 break; 3802 case NL80211_CHAN_WIDTH_5: 3803 case NL80211_CHAN_WIDTH_10: 3804 case NL80211_CHAN_WIDTH_20_NOHT: 3805 case NL80211_CHAN_WIDTH_20: 3806 break; 3807 default: 3808 return -EINVAL; 3809 } 3810 3811 /* changes into another band are not supported */ 3812 if (sdata->u.ibss.chandef.chan->band != 3813 params->chandef.chan->band) 3814 return -EINVAL; 3815 3816 /* see comments in the NL80211_IFTYPE_AP block */ 3817 if (params->count > 1) { 3818 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3819 if (err < 0) 3820 return err; 3821 } 3822 3823 ieee80211_send_action_csa(sdata, params); 3824 3825 break; 3826 #ifdef CONFIG_MAC80211_MESH 3827 case NL80211_IFTYPE_MESH_POINT: { 3828 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3829 3830 /* changes into another band are not supported */ 3831 if (sdata->vif.bss_conf.chandef.chan->band != 3832 params->chandef.chan->band) 3833 return -EINVAL; 3834 3835 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3836 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3837 if (!ifmsh->pre_value) 3838 ifmsh->pre_value = 1; 3839 else 3840 ifmsh->pre_value++; 3841 } 3842 3843 /* see comments in the NL80211_IFTYPE_AP block */ 3844 if (params->count > 1) { 3845 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3846 if (err < 0) { 3847 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3848 return err; 3849 } 3850 } 3851 3852 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3853 ieee80211_send_action_csa(sdata, params); 3854 3855 break; 3856 } 3857 #endif 3858 default: 3859 return -EOPNOTSUPP; 3860 } 3861 3862 return 0; 3863 } 3864 3865 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3866 { 3867 sdata->vif.bss_conf.color_change_active = false; 3868 3869 ieee80211_free_next_beacon(&sdata->deflink); 3870 3871 cfg80211_color_change_aborted_notify(sdata->dev); 3872 } 3873 3874 static int 3875 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3876 struct cfg80211_csa_settings *params) 3877 { 3878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3879 struct ieee80211_local *local = sdata->local; 3880 struct ieee80211_channel_switch ch_switch; 3881 struct ieee80211_chanctx_conf *conf; 3882 struct ieee80211_chanctx *chanctx; 3883 u64 changed = 0; 3884 int err; 3885 3886 sdata_assert_lock(sdata); 3887 lockdep_assert_held(&local->mtx); 3888 3889 if (!list_empty(&local->roc_list) || local->scanning) 3890 return -EBUSY; 3891 3892 if (sdata->wdev.cac_started) 3893 return -EBUSY; 3894 3895 if (cfg80211_chandef_identical(¶ms->chandef, 3896 &sdata->vif.bss_conf.chandef)) 3897 return -EINVAL; 3898 3899 /* don't allow another channel switch if one is already active. */ 3900 if (sdata->vif.bss_conf.csa_active) 3901 return -EBUSY; 3902 3903 mutex_lock(&local->chanctx_mtx); 3904 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3905 lockdep_is_held(&local->chanctx_mtx)); 3906 if (!conf) { 3907 err = -EBUSY; 3908 goto out; 3909 } 3910 3911 if (params->chandef.chan->freq_offset) { 3912 /* this may work, but is untested */ 3913 err = -EOPNOTSUPP; 3914 goto out; 3915 } 3916 3917 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3918 3919 ch_switch.timestamp = 0; 3920 ch_switch.device_timestamp = 0; 3921 ch_switch.block_tx = params->block_tx; 3922 ch_switch.chandef = params->chandef; 3923 ch_switch.count = params->count; 3924 3925 err = drv_pre_channel_switch(sdata, &ch_switch); 3926 if (err) 3927 goto out; 3928 3929 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3930 chanctx->mode, 3931 params->radar_required); 3932 if (err) 3933 goto out; 3934 3935 /* if reservation is invalid then this will fail */ 3936 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3937 if (err) { 3938 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3939 goto out; 3940 } 3941 3942 /* if there is a color change in progress, abort it */ 3943 if (sdata->vif.bss_conf.color_change_active) 3944 ieee80211_color_change_abort(sdata); 3945 3946 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3947 if (err) { 3948 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3949 goto out; 3950 } 3951 3952 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3953 goto out; 3954 3955 sdata->deflink.csa_chandef = params->chandef; 3956 sdata->deflink.csa_block_tx = params->block_tx; 3957 sdata->vif.bss_conf.csa_active = true; 3958 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3959 3960 if (sdata->deflink.csa_block_tx) 3961 ieee80211_stop_vif_queues(local, sdata, 3962 IEEE80211_QUEUE_STOP_REASON_CSA); 3963 3964 cfg80211_ch_switch_started_notify(sdata->dev, 3965 &sdata->deflink.csa_chandef, 0, 3966 params->count, params->block_tx, 3967 sdata->vif.bss_conf.csa_punct_bitmap); 3968 3969 if (changed) { 3970 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3971 changed); 3972 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3973 } else { 3974 /* if the beacon didn't change, we can finalize immediately */ 3975 ieee80211_csa_finalize(sdata); 3976 } 3977 3978 out: 3979 mutex_unlock(&local->chanctx_mtx); 3980 return err; 3981 } 3982 3983 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3984 struct cfg80211_csa_settings *params) 3985 { 3986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3987 struct ieee80211_local *local = sdata->local; 3988 int err; 3989 3990 mutex_lock(&local->mtx); 3991 err = __ieee80211_channel_switch(wiphy, dev, params); 3992 mutex_unlock(&local->mtx); 3993 3994 return err; 3995 } 3996 3997 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3998 { 3999 lockdep_assert_held(&local->mtx); 4000 4001 local->roc_cookie_counter++; 4002 4003 /* wow, you wrapped 64 bits ... more likely a bug */ 4004 if (WARN_ON(local->roc_cookie_counter == 0)) 4005 local->roc_cookie_counter++; 4006 4007 return local->roc_cookie_counter; 4008 } 4009 4010 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4011 u64 *cookie, gfp_t gfp) 4012 { 4013 unsigned long spin_flags; 4014 struct sk_buff *ack_skb; 4015 int id; 4016 4017 ack_skb = skb_copy(skb, gfp); 4018 if (!ack_skb) 4019 return -ENOMEM; 4020 4021 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4022 id = idr_alloc(&local->ack_status_frames, ack_skb, 4023 1, 0x2000, GFP_ATOMIC); 4024 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4025 4026 if (id < 0) { 4027 kfree_skb(ack_skb); 4028 return -ENOMEM; 4029 } 4030 4031 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 4032 4033 *cookie = ieee80211_mgmt_tx_cookie(local); 4034 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4035 4036 return 0; 4037 } 4038 4039 static void 4040 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4041 struct wireless_dev *wdev, 4042 struct mgmt_frame_regs *upd) 4043 { 4044 struct ieee80211_local *local = wiphy_priv(wiphy); 4045 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4046 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4047 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4048 bool global_change, intf_change; 4049 4050 global_change = 4051 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4052 (local->rx_mcast_action_reg != 4053 !!(upd->global_mcast_stypes & action_mask)); 4054 local->probe_req_reg = upd->global_stypes & preq_mask; 4055 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4056 4057 intf_change = (sdata->vif.probe_req_reg != 4058 !!(upd->interface_stypes & preq_mask)) || 4059 (sdata->vif.rx_mcast_action_reg != 4060 !!(upd->interface_mcast_stypes & action_mask)); 4061 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4062 sdata->vif.rx_mcast_action_reg = 4063 upd->interface_mcast_stypes & action_mask; 4064 4065 if (!local->open_count) 4066 return; 4067 4068 if (intf_change && ieee80211_sdata_running(sdata)) 4069 drv_config_iface_filter(local, sdata, 4070 sdata->vif.probe_req_reg ? 4071 FIF_PROBE_REQ : 0, 4072 FIF_PROBE_REQ); 4073 4074 if (global_change) 4075 ieee80211_configure_filter(local); 4076 } 4077 4078 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4079 { 4080 struct ieee80211_local *local = wiphy_priv(wiphy); 4081 4082 if (local->started) 4083 return -EOPNOTSUPP; 4084 4085 return drv_set_antenna(local, tx_ant, rx_ant); 4086 } 4087 4088 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4089 { 4090 struct ieee80211_local *local = wiphy_priv(wiphy); 4091 4092 return drv_get_antenna(local, tx_ant, rx_ant); 4093 } 4094 4095 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4096 struct net_device *dev, 4097 struct cfg80211_gtk_rekey_data *data) 4098 { 4099 struct ieee80211_local *local = wiphy_priv(wiphy); 4100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4101 4102 if (!local->ops->set_rekey_data) 4103 return -EOPNOTSUPP; 4104 4105 drv_set_rekey_data(local, sdata, data); 4106 4107 return 0; 4108 } 4109 4110 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4111 const u8 *peer, u64 *cookie) 4112 { 4113 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4114 struct ieee80211_local *local = sdata->local; 4115 struct ieee80211_qos_hdr *nullfunc; 4116 struct sk_buff *skb; 4117 int size = sizeof(*nullfunc); 4118 __le16 fc; 4119 bool qos; 4120 struct ieee80211_tx_info *info; 4121 struct sta_info *sta; 4122 struct ieee80211_chanctx_conf *chanctx_conf; 4123 enum nl80211_band band; 4124 int ret; 4125 4126 /* the lock is needed to assign the cookie later */ 4127 mutex_lock(&local->mtx); 4128 4129 rcu_read_lock(); 4130 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4131 if (WARN_ON(!chanctx_conf)) { 4132 ret = -EINVAL; 4133 goto unlock; 4134 } 4135 band = chanctx_conf->def.chan->band; 4136 sta = sta_info_get_bss(sdata, peer); 4137 if (sta) { 4138 qos = sta->sta.wme; 4139 } else { 4140 ret = -ENOLINK; 4141 goto unlock; 4142 } 4143 4144 if (qos) { 4145 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4146 IEEE80211_STYPE_QOS_NULLFUNC | 4147 IEEE80211_FCTL_FROMDS); 4148 } else { 4149 size -= 2; 4150 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4151 IEEE80211_STYPE_NULLFUNC | 4152 IEEE80211_FCTL_FROMDS); 4153 } 4154 4155 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4156 if (!skb) { 4157 ret = -ENOMEM; 4158 goto unlock; 4159 } 4160 4161 skb->dev = dev; 4162 4163 skb_reserve(skb, local->hw.extra_tx_headroom); 4164 4165 nullfunc = skb_put(skb, size); 4166 nullfunc->frame_control = fc; 4167 nullfunc->duration_id = 0; 4168 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4169 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4170 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4171 nullfunc->seq_ctrl = 0; 4172 4173 info = IEEE80211_SKB_CB(skb); 4174 4175 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4176 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4177 info->band = band; 4178 4179 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4180 skb->priority = 7; 4181 if (qos) 4182 nullfunc->qos_ctrl = cpu_to_le16(7); 4183 4184 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4185 if (ret) { 4186 kfree_skb(skb); 4187 goto unlock; 4188 } 4189 4190 local_bh_disable(); 4191 ieee80211_xmit(sdata, sta, skb); 4192 local_bh_enable(); 4193 4194 ret = 0; 4195 unlock: 4196 rcu_read_unlock(); 4197 mutex_unlock(&local->mtx); 4198 4199 return ret; 4200 } 4201 4202 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4203 struct wireless_dev *wdev, 4204 unsigned int link_id, 4205 struct cfg80211_chan_def *chandef) 4206 { 4207 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4208 struct ieee80211_local *local = wiphy_priv(wiphy); 4209 struct ieee80211_chanctx_conf *chanctx_conf; 4210 struct ieee80211_link_data *link; 4211 int ret = -ENODATA; 4212 4213 rcu_read_lock(); 4214 link = rcu_dereference(sdata->link[link_id]); 4215 if (!link) { 4216 ret = -ENOLINK; 4217 goto out; 4218 } 4219 4220 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4221 if (chanctx_conf) { 4222 *chandef = link->conf->chandef; 4223 ret = 0; 4224 } else if (local->open_count > 0 && 4225 local->open_count == local->monitors && 4226 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4227 if (local->use_chanctx) 4228 *chandef = local->monitor_chandef; 4229 else 4230 *chandef = local->_oper_chandef; 4231 ret = 0; 4232 } 4233 out: 4234 rcu_read_unlock(); 4235 4236 return ret; 4237 } 4238 4239 #ifdef CONFIG_PM 4240 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4241 { 4242 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4243 } 4244 #endif 4245 4246 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4247 struct net_device *dev, 4248 struct cfg80211_qos_map *qos_map) 4249 { 4250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4251 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4252 4253 if (qos_map) { 4254 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4255 if (!new_qos_map) 4256 return -ENOMEM; 4257 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4258 } else { 4259 /* A NULL qos_map was passed to disable QoS mapping */ 4260 new_qos_map = NULL; 4261 } 4262 4263 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4264 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4265 if (old_qos_map) 4266 kfree_rcu(old_qos_map, rcu_head); 4267 4268 return 0; 4269 } 4270 4271 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4272 struct net_device *dev, 4273 unsigned int link_id, 4274 struct cfg80211_chan_def *chandef) 4275 { 4276 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4277 struct ieee80211_link_data *link; 4278 int ret; 4279 u64 changed = 0; 4280 4281 link = sdata_dereference(sdata->link[link_id], sdata); 4282 4283 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4284 if (ret == 0) 4285 ieee80211_link_info_change_notify(sdata, link, changed); 4286 4287 return ret; 4288 } 4289 4290 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4291 u8 tsid, const u8 *peer, u8 up, 4292 u16 admitted_time) 4293 { 4294 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4295 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4296 int ac = ieee802_1d_to_ac[up]; 4297 4298 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4299 return -EOPNOTSUPP; 4300 4301 if (!(sdata->wmm_acm & BIT(up))) 4302 return -EINVAL; 4303 4304 if (ifmgd->tx_tspec[ac].admitted_time) 4305 return -EBUSY; 4306 4307 if (admitted_time) { 4308 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4309 ifmgd->tx_tspec[ac].tsid = tsid; 4310 ifmgd->tx_tspec[ac].up = up; 4311 } 4312 4313 return 0; 4314 } 4315 4316 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4317 u8 tsid, const u8 *peer) 4318 { 4319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4320 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4321 struct ieee80211_local *local = wiphy_priv(wiphy); 4322 int ac; 4323 4324 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4325 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4326 4327 /* skip unused entries */ 4328 if (!tx_tspec->admitted_time) 4329 continue; 4330 4331 if (tx_tspec->tsid != tsid) 4332 continue; 4333 4334 /* due to this new packets will be reassigned to non-ACM ACs */ 4335 tx_tspec->up = -1; 4336 4337 /* Make sure that all packets have been sent to avoid to 4338 * restore the QoS params on packets that are still on the 4339 * queues. 4340 */ 4341 synchronize_net(); 4342 ieee80211_flush_queues(local, sdata, false); 4343 4344 /* restore the normal QoS parameters 4345 * (unconditionally to avoid races) 4346 */ 4347 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4348 tx_tspec->downgraded = false; 4349 ieee80211_sta_handle_tspec_ac_params(sdata); 4350 4351 /* finally clear all the data */ 4352 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4353 4354 return 0; 4355 } 4356 4357 return -ENOENT; 4358 } 4359 4360 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4361 u8 inst_id, 4362 enum nl80211_nan_func_term_reason reason, 4363 gfp_t gfp) 4364 { 4365 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4366 struct cfg80211_nan_func *func; 4367 u64 cookie; 4368 4369 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4370 return; 4371 4372 spin_lock_bh(&sdata->u.nan.func_lock); 4373 4374 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4375 if (WARN_ON(!func)) { 4376 spin_unlock_bh(&sdata->u.nan.func_lock); 4377 return; 4378 } 4379 4380 cookie = func->cookie; 4381 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4382 4383 spin_unlock_bh(&sdata->u.nan.func_lock); 4384 4385 cfg80211_free_nan_func(func); 4386 4387 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4388 reason, cookie, gfp); 4389 } 4390 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4391 4392 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4393 struct cfg80211_nan_match_params *match, 4394 gfp_t gfp) 4395 { 4396 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4397 struct cfg80211_nan_func *func; 4398 4399 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4400 return; 4401 4402 spin_lock_bh(&sdata->u.nan.func_lock); 4403 4404 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4405 if (WARN_ON(!func)) { 4406 spin_unlock_bh(&sdata->u.nan.func_lock); 4407 return; 4408 } 4409 match->cookie = func->cookie; 4410 4411 spin_unlock_bh(&sdata->u.nan.func_lock); 4412 4413 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4414 } 4415 EXPORT_SYMBOL(ieee80211_nan_func_match); 4416 4417 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4418 struct net_device *dev, 4419 const bool enabled) 4420 { 4421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4422 4423 sdata->u.ap.multicast_to_unicast = enabled; 4424 4425 return 0; 4426 } 4427 4428 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4429 struct txq_info *txqi) 4430 { 4431 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4432 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4433 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4434 } 4435 4436 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4437 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4438 txqstats->backlog_packets = txqi->tin.backlog_packets; 4439 } 4440 4441 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4442 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4443 txqstats->flows = txqi->tin.flows; 4444 } 4445 4446 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4447 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4448 txqstats->drops = txqi->cstats.drop_count; 4449 } 4450 4451 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4452 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4453 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4454 } 4455 4456 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4457 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4458 txqstats->overlimit = txqi->tin.overlimit; 4459 } 4460 4461 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4462 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4463 txqstats->collisions = txqi->tin.collisions; 4464 } 4465 4466 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4467 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4468 txqstats->tx_bytes = txqi->tin.tx_bytes; 4469 } 4470 4471 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4472 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4473 txqstats->tx_packets = txqi->tin.tx_packets; 4474 } 4475 } 4476 4477 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4478 struct wireless_dev *wdev, 4479 struct cfg80211_txq_stats *txqstats) 4480 { 4481 struct ieee80211_local *local = wiphy_priv(wiphy); 4482 struct ieee80211_sub_if_data *sdata; 4483 int ret = 0; 4484 4485 spin_lock_bh(&local->fq.lock); 4486 rcu_read_lock(); 4487 4488 if (wdev) { 4489 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4490 if (!sdata->vif.txq) { 4491 ret = 1; 4492 goto out; 4493 } 4494 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4495 } else { 4496 /* phy stats */ 4497 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4498 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4499 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4500 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4501 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4502 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4503 txqstats->backlog_packets = local->fq.backlog; 4504 txqstats->backlog_bytes = local->fq.memory_usage; 4505 txqstats->overlimit = local->fq.overlimit; 4506 txqstats->overmemory = local->fq.overmemory; 4507 txqstats->collisions = local->fq.collisions; 4508 txqstats->max_flows = local->fq.flows_cnt; 4509 } 4510 4511 out: 4512 rcu_read_unlock(); 4513 spin_unlock_bh(&local->fq.lock); 4514 4515 return ret; 4516 } 4517 4518 static int 4519 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4520 struct net_device *dev, 4521 struct cfg80211_ftm_responder_stats *ftm_stats) 4522 { 4523 struct ieee80211_local *local = wiphy_priv(wiphy); 4524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4525 4526 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4527 } 4528 4529 static int 4530 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4531 struct cfg80211_pmsr_request *request) 4532 { 4533 struct ieee80211_local *local = wiphy_priv(wiphy); 4534 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4535 4536 return drv_start_pmsr(local, sdata, request); 4537 } 4538 4539 static void 4540 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4541 struct cfg80211_pmsr_request *request) 4542 { 4543 struct ieee80211_local *local = wiphy_priv(wiphy); 4544 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4545 4546 return drv_abort_pmsr(local, sdata, request); 4547 } 4548 4549 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4550 struct net_device *dev, 4551 struct cfg80211_tid_config *tid_conf) 4552 { 4553 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4554 struct sta_info *sta; 4555 int ret; 4556 4557 if (!sdata->local->ops->set_tid_config) 4558 return -EOPNOTSUPP; 4559 4560 if (!tid_conf->peer) 4561 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4562 4563 mutex_lock(&sdata->local->sta_mtx); 4564 sta = sta_info_get_bss(sdata, tid_conf->peer); 4565 if (!sta) { 4566 mutex_unlock(&sdata->local->sta_mtx); 4567 return -ENOENT; 4568 } 4569 4570 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4571 mutex_unlock(&sdata->local->sta_mtx); 4572 4573 return ret; 4574 } 4575 4576 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4577 struct net_device *dev, 4578 const u8 *peer, u8 tids) 4579 { 4580 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4581 struct sta_info *sta; 4582 int ret; 4583 4584 if (!sdata->local->ops->reset_tid_config) 4585 return -EOPNOTSUPP; 4586 4587 if (!peer) 4588 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4589 4590 mutex_lock(&sdata->local->sta_mtx); 4591 sta = sta_info_get_bss(sdata, peer); 4592 if (!sta) { 4593 mutex_unlock(&sdata->local->sta_mtx); 4594 return -ENOENT; 4595 } 4596 4597 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4598 mutex_unlock(&sdata->local->sta_mtx); 4599 4600 return ret; 4601 } 4602 4603 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4604 struct cfg80211_sar_specs *sar) 4605 { 4606 struct ieee80211_local *local = wiphy_priv(wiphy); 4607 4608 if (!local->ops->set_sar_specs) 4609 return -EOPNOTSUPP; 4610 4611 return local->ops->set_sar_specs(&local->hw, sar); 4612 } 4613 4614 static int 4615 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4616 u64 *changed) 4617 { 4618 switch (sdata->vif.type) { 4619 case NL80211_IFTYPE_AP: { 4620 int ret; 4621 4622 if (!sdata->deflink.u.ap.next_beacon) 4623 return -EINVAL; 4624 4625 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4626 sdata->deflink.u.ap.next_beacon, 4627 NULL, NULL, changed); 4628 ieee80211_free_next_beacon(&sdata->deflink); 4629 4630 if (ret < 0) 4631 return ret; 4632 4633 break; 4634 } 4635 default: 4636 WARN_ON_ONCE(1); 4637 return -EINVAL; 4638 } 4639 4640 return 0; 4641 } 4642 4643 static int 4644 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4645 struct cfg80211_color_change_settings *params, 4646 u64 *changed) 4647 { 4648 struct ieee80211_color_change_settings color_change = {}; 4649 int err; 4650 4651 switch (sdata->vif.type) { 4652 case NL80211_IFTYPE_AP: 4653 sdata->deflink.u.ap.next_beacon = 4654 cfg80211_beacon_dup(¶ms->beacon_next); 4655 if (!sdata->deflink.u.ap.next_beacon) 4656 return -ENOMEM; 4657 4658 if (params->count <= 1) 4659 break; 4660 4661 color_change.counter_offset_beacon = 4662 params->counter_offset_beacon; 4663 color_change.counter_offset_presp = 4664 params->counter_offset_presp; 4665 color_change.count = params->count; 4666 4667 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4668 ¶ms->beacon_color_change, 4669 NULL, &color_change, changed); 4670 if (err < 0) { 4671 ieee80211_free_next_beacon(&sdata->deflink); 4672 return err; 4673 } 4674 break; 4675 default: 4676 return -EOPNOTSUPP; 4677 } 4678 4679 return 0; 4680 } 4681 4682 static void 4683 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4684 u8 color, int enable, u64 changed) 4685 { 4686 sdata->vif.bss_conf.he_bss_color.color = color; 4687 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4688 changed |= BSS_CHANGED_HE_BSS_COLOR; 4689 4690 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4691 4692 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4693 struct ieee80211_sub_if_data *child; 4694 4695 mutex_lock(&sdata->local->iflist_mtx); 4696 list_for_each_entry(child, &sdata->local->interfaces, list) { 4697 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4698 child->vif.bss_conf.he_bss_color.color = color; 4699 child->vif.bss_conf.he_bss_color.enabled = enable; 4700 ieee80211_link_info_change_notify(child, 4701 &child->deflink, 4702 BSS_CHANGED_HE_BSS_COLOR); 4703 } 4704 } 4705 mutex_unlock(&sdata->local->iflist_mtx); 4706 } 4707 } 4708 4709 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4710 { 4711 struct ieee80211_local *local = sdata->local; 4712 u64 changed = 0; 4713 int err; 4714 4715 sdata_assert_lock(sdata); 4716 lockdep_assert_held(&local->mtx); 4717 4718 sdata->vif.bss_conf.color_change_active = false; 4719 4720 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4721 if (err) { 4722 cfg80211_color_change_aborted_notify(sdata->dev); 4723 return err; 4724 } 4725 4726 ieee80211_color_change_bss_config_notify(sdata, 4727 sdata->vif.bss_conf.color_change_color, 4728 1, changed); 4729 cfg80211_color_change_notify(sdata->dev); 4730 4731 return 0; 4732 } 4733 4734 void ieee80211_color_change_finalize_work(struct work_struct *work) 4735 { 4736 struct ieee80211_sub_if_data *sdata = 4737 container_of(work, struct ieee80211_sub_if_data, 4738 deflink.color_change_finalize_work); 4739 struct ieee80211_local *local = sdata->local; 4740 4741 sdata_lock(sdata); 4742 mutex_lock(&local->mtx); 4743 4744 /* AP might have been stopped while waiting for the lock. */ 4745 if (!sdata->vif.bss_conf.color_change_active) 4746 goto unlock; 4747 4748 if (!ieee80211_sdata_running(sdata)) 4749 goto unlock; 4750 4751 ieee80211_color_change_finalize(sdata); 4752 4753 unlock: 4754 mutex_unlock(&local->mtx); 4755 sdata_unlock(sdata); 4756 } 4757 4758 void ieee80211_color_collision_detection_work(struct work_struct *work) 4759 { 4760 struct delayed_work *delayed_work = to_delayed_work(work); 4761 struct ieee80211_link_data *link = 4762 container_of(delayed_work, struct ieee80211_link_data, 4763 color_collision_detect_work); 4764 struct ieee80211_sub_if_data *sdata = link->sdata; 4765 4766 sdata_lock(sdata); 4767 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4768 sdata_unlock(sdata); 4769 } 4770 4771 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4772 { 4773 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4774 4775 ieee80211_queue_work(&sdata->local->hw, 4776 &sdata->deflink.color_change_finalize_work); 4777 } 4778 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4779 4780 void 4781 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4782 u64 color_bitmap, gfp_t gfp) 4783 { 4784 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4785 struct ieee80211_link_data *link = &sdata->deflink; 4786 4787 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4788 return; 4789 4790 if (delayed_work_pending(&link->color_collision_detect_work)) 4791 return; 4792 4793 link->color_bitmap = color_bitmap; 4794 /* queue the color collision detection event every 500 ms in order to 4795 * avoid sending too much netlink messages to userspace. 4796 */ 4797 ieee80211_queue_delayed_work(&sdata->local->hw, 4798 &link->color_collision_detect_work, 4799 msecs_to_jiffies(500)); 4800 } 4801 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4802 4803 static int 4804 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4805 struct cfg80211_color_change_settings *params) 4806 { 4807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4808 struct ieee80211_local *local = sdata->local; 4809 u64 changed = 0; 4810 int err; 4811 4812 sdata_assert_lock(sdata); 4813 4814 if (sdata->vif.bss_conf.nontransmitted) 4815 return -EINVAL; 4816 4817 mutex_lock(&local->mtx); 4818 4819 /* don't allow another color change if one is already active or if csa 4820 * is active 4821 */ 4822 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4823 err = -EBUSY; 4824 goto out; 4825 } 4826 4827 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4828 if (err) 4829 goto out; 4830 4831 sdata->vif.bss_conf.color_change_active = true; 4832 sdata->vif.bss_conf.color_change_color = params->color; 4833 4834 cfg80211_color_change_started_notify(sdata->dev, params->count); 4835 4836 if (changed) 4837 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4838 else 4839 /* if the beacon didn't change, we can finalize immediately */ 4840 ieee80211_color_change_finalize(sdata); 4841 4842 out: 4843 mutex_unlock(&local->mtx); 4844 4845 return err; 4846 } 4847 4848 static int 4849 ieee80211_set_radar_background(struct wiphy *wiphy, 4850 struct cfg80211_chan_def *chandef) 4851 { 4852 struct ieee80211_local *local = wiphy_priv(wiphy); 4853 4854 if (!local->ops->set_radar_background) 4855 return -EOPNOTSUPP; 4856 4857 return local->ops->set_radar_background(&local->hw, chandef); 4858 } 4859 4860 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4861 struct wireless_dev *wdev, 4862 unsigned int link_id) 4863 { 4864 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4865 int res; 4866 4867 if (wdev->use_4addr) 4868 return -EOPNOTSUPP; 4869 4870 mutex_lock(&sdata->local->mtx); 4871 res = ieee80211_vif_set_links(sdata, wdev->valid_links); 4872 mutex_unlock(&sdata->local->mtx); 4873 4874 return res; 4875 } 4876 4877 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4878 struct wireless_dev *wdev, 4879 unsigned int link_id) 4880 { 4881 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4882 4883 mutex_lock(&sdata->local->mtx); 4884 ieee80211_vif_set_links(sdata, wdev->valid_links); 4885 mutex_unlock(&sdata->local->mtx); 4886 } 4887 4888 static int sta_add_link_station(struct ieee80211_local *local, 4889 struct ieee80211_sub_if_data *sdata, 4890 struct link_station_parameters *params) 4891 { 4892 struct sta_info *sta; 4893 int ret; 4894 4895 sta = sta_info_get_bss(sdata, params->mld_mac); 4896 if (!sta) 4897 return -ENOENT; 4898 4899 if (!sta->sta.valid_links) 4900 return -EINVAL; 4901 4902 if (sta->sta.valid_links & BIT(params->link_id)) 4903 return -EALREADY; 4904 4905 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4906 if (ret) 4907 return ret; 4908 4909 ret = sta_link_apply_parameters(local, sta, true, params); 4910 if (ret) { 4911 ieee80211_sta_free_link(sta, params->link_id); 4912 return ret; 4913 } 4914 4915 /* ieee80211_sta_activate_link frees the link upon failure */ 4916 return ieee80211_sta_activate_link(sta, params->link_id); 4917 } 4918 4919 static int 4920 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4921 struct link_station_parameters *params) 4922 { 4923 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4924 struct ieee80211_local *local = wiphy_priv(wiphy); 4925 int ret; 4926 4927 mutex_lock(&sdata->local->sta_mtx); 4928 ret = sta_add_link_station(local, sdata, params); 4929 mutex_unlock(&sdata->local->sta_mtx); 4930 4931 return ret; 4932 } 4933 4934 static int sta_mod_link_station(struct ieee80211_local *local, 4935 struct ieee80211_sub_if_data *sdata, 4936 struct link_station_parameters *params) 4937 { 4938 struct sta_info *sta; 4939 4940 sta = sta_info_get_bss(sdata, params->mld_mac); 4941 if (!sta) 4942 return -ENOENT; 4943 4944 if (!(sta->sta.valid_links & BIT(params->link_id))) 4945 return -EINVAL; 4946 4947 return sta_link_apply_parameters(local, sta, false, params); 4948 } 4949 4950 static int 4951 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4952 struct link_station_parameters *params) 4953 { 4954 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4955 struct ieee80211_local *local = wiphy_priv(wiphy); 4956 int ret; 4957 4958 mutex_lock(&sdata->local->sta_mtx); 4959 ret = sta_mod_link_station(local, sdata, params); 4960 mutex_unlock(&sdata->local->sta_mtx); 4961 4962 return ret; 4963 } 4964 4965 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4966 struct link_station_del_parameters *params) 4967 { 4968 struct sta_info *sta; 4969 4970 sta = sta_info_get_bss(sdata, params->mld_mac); 4971 if (!sta) 4972 return -ENOENT; 4973 4974 if (!(sta->sta.valid_links & BIT(params->link_id))) 4975 return -EINVAL; 4976 4977 /* must not create a STA without links */ 4978 if (sta->sta.valid_links == BIT(params->link_id)) 4979 return -EINVAL; 4980 4981 ieee80211_sta_remove_link(sta, params->link_id); 4982 4983 return 0; 4984 } 4985 4986 static int 4987 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4988 struct link_station_del_parameters *params) 4989 { 4990 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4991 int ret; 4992 4993 mutex_lock(&sdata->local->sta_mtx); 4994 ret = sta_del_link_station(sdata, params); 4995 mutex_unlock(&sdata->local->sta_mtx); 4996 4997 return ret; 4998 } 4999 5000 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5001 struct net_device *dev, 5002 struct cfg80211_set_hw_timestamp *hwts) 5003 { 5004 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5005 struct ieee80211_local *local = sdata->local; 5006 5007 if (!local->ops->set_hw_timestamp) 5008 return -EOPNOTSUPP; 5009 5010 if (!check_sdata_in_driver(sdata)) 5011 return -EIO; 5012 5013 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5014 } 5015 5016 const struct cfg80211_ops mac80211_config_ops = { 5017 .add_virtual_intf = ieee80211_add_iface, 5018 .del_virtual_intf = ieee80211_del_iface, 5019 .change_virtual_intf = ieee80211_change_iface, 5020 .start_p2p_device = ieee80211_start_p2p_device, 5021 .stop_p2p_device = ieee80211_stop_p2p_device, 5022 .add_key = ieee80211_add_key, 5023 .del_key = ieee80211_del_key, 5024 .get_key = ieee80211_get_key, 5025 .set_default_key = ieee80211_config_default_key, 5026 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5027 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5028 .start_ap = ieee80211_start_ap, 5029 .change_beacon = ieee80211_change_beacon, 5030 .stop_ap = ieee80211_stop_ap, 5031 .add_station = ieee80211_add_station, 5032 .del_station = ieee80211_del_station, 5033 .change_station = ieee80211_change_station, 5034 .get_station = ieee80211_get_station, 5035 .dump_station = ieee80211_dump_station, 5036 .dump_survey = ieee80211_dump_survey, 5037 #ifdef CONFIG_MAC80211_MESH 5038 .add_mpath = ieee80211_add_mpath, 5039 .del_mpath = ieee80211_del_mpath, 5040 .change_mpath = ieee80211_change_mpath, 5041 .get_mpath = ieee80211_get_mpath, 5042 .dump_mpath = ieee80211_dump_mpath, 5043 .get_mpp = ieee80211_get_mpp, 5044 .dump_mpp = ieee80211_dump_mpp, 5045 .update_mesh_config = ieee80211_update_mesh_config, 5046 .get_mesh_config = ieee80211_get_mesh_config, 5047 .join_mesh = ieee80211_join_mesh, 5048 .leave_mesh = ieee80211_leave_mesh, 5049 #endif 5050 .join_ocb = ieee80211_join_ocb, 5051 .leave_ocb = ieee80211_leave_ocb, 5052 .change_bss = ieee80211_change_bss, 5053 .set_txq_params = ieee80211_set_txq_params, 5054 .set_monitor_channel = ieee80211_set_monitor_channel, 5055 .suspend = ieee80211_suspend, 5056 .resume = ieee80211_resume, 5057 .scan = ieee80211_scan, 5058 .abort_scan = ieee80211_abort_scan, 5059 .sched_scan_start = ieee80211_sched_scan_start, 5060 .sched_scan_stop = ieee80211_sched_scan_stop, 5061 .auth = ieee80211_auth, 5062 .assoc = ieee80211_assoc, 5063 .deauth = ieee80211_deauth, 5064 .disassoc = ieee80211_disassoc, 5065 .join_ibss = ieee80211_join_ibss, 5066 .leave_ibss = ieee80211_leave_ibss, 5067 .set_mcast_rate = ieee80211_set_mcast_rate, 5068 .set_wiphy_params = ieee80211_set_wiphy_params, 5069 .set_tx_power = ieee80211_set_tx_power, 5070 .get_tx_power = ieee80211_get_tx_power, 5071 .rfkill_poll = ieee80211_rfkill_poll, 5072 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5073 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5074 .set_power_mgmt = ieee80211_set_power_mgmt, 5075 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5076 .remain_on_channel = ieee80211_remain_on_channel, 5077 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5078 .mgmt_tx = ieee80211_mgmt_tx, 5079 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5080 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5081 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5082 .update_mgmt_frame_registrations = 5083 ieee80211_update_mgmt_frame_registrations, 5084 .set_antenna = ieee80211_set_antenna, 5085 .get_antenna = ieee80211_get_antenna, 5086 .set_rekey_data = ieee80211_set_rekey_data, 5087 .tdls_oper = ieee80211_tdls_oper, 5088 .tdls_mgmt = ieee80211_tdls_mgmt, 5089 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5090 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5091 .probe_client = ieee80211_probe_client, 5092 .set_noack_map = ieee80211_set_noack_map, 5093 #ifdef CONFIG_PM 5094 .set_wakeup = ieee80211_set_wakeup, 5095 #endif 5096 .get_channel = ieee80211_cfg_get_channel, 5097 .start_radar_detection = ieee80211_start_radar_detection, 5098 .end_cac = ieee80211_end_cac, 5099 .channel_switch = ieee80211_channel_switch, 5100 .set_qos_map = ieee80211_set_qos_map, 5101 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5102 .add_tx_ts = ieee80211_add_tx_ts, 5103 .del_tx_ts = ieee80211_del_tx_ts, 5104 .start_nan = ieee80211_start_nan, 5105 .stop_nan = ieee80211_stop_nan, 5106 .nan_change_conf = ieee80211_nan_change_conf, 5107 .add_nan_func = ieee80211_add_nan_func, 5108 .del_nan_func = ieee80211_del_nan_func, 5109 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5110 .tx_control_port = ieee80211_tx_control_port, 5111 .get_txq_stats = ieee80211_get_txq_stats, 5112 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5113 .start_pmsr = ieee80211_start_pmsr, 5114 .abort_pmsr = ieee80211_abort_pmsr, 5115 .probe_mesh_link = ieee80211_probe_mesh_link, 5116 .set_tid_config = ieee80211_set_tid_config, 5117 .reset_tid_config = ieee80211_reset_tid_config, 5118 .set_sar_specs = ieee80211_set_sar_specs, 5119 .color_change = ieee80211_color_change, 5120 .set_radar_background = ieee80211_set_radar_background, 5121 .add_intf_link = ieee80211_add_intf_link, 5122 .del_intf_link = ieee80211_del_intf_link, 5123 .add_link_station = ieee80211_add_link_station, 5124 .mod_link_station = ieee80211_mod_link_station, 5125 .del_link_station = ieee80211_del_link_station, 5126 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5127 }; 5128