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 void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 43 BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = wiphy_dereference(local->hw.wiphy, 85 local->monitor_sdata); 86 87 if (!monitor_sdata && 88 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 89 return -EOPNOTSUPP; 90 91 /* apply all changes now - no failures allowed */ 92 93 if (monitor_sdata) 94 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 95 96 if (params->flags) { 97 if (ieee80211_sdata_running(sdata)) { 98 ieee80211_adjust_monitor_flags(sdata, -1); 99 sdata->u.mntr.flags = params->flags; 100 ieee80211_adjust_monitor_flags(sdata, 1); 101 102 ieee80211_configure_filter(local); 103 } else { 104 /* 105 * Because the interface is down, ieee80211_do_stop 106 * and ieee80211_do_open take care of "everything" 107 * mentioned in the comment above. 108 */ 109 sdata->u.mntr.flags = params->flags; 110 } 111 } 112 113 return 0; 114 } 115 116 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 117 struct cfg80211_mbssid_config params, 118 struct ieee80211_bss_conf *link_conf) 119 { 120 struct ieee80211_sub_if_data *tx_sdata; 121 122 sdata->vif.mbssid_tx_vif = NULL; 123 link_conf->bssid_index = 0; 124 link_conf->nontransmitted = false; 125 link_conf->ema_ap = false; 126 127 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 128 return -EINVAL; 129 130 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 131 if (!tx_sdata) 132 return -EINVAL; 133 134 if (tx_sdata == sdata) { 135 sdata->vif.mbssid_tx_vif = &sdata->vif; 136 } else { 137 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 138 link_conf->nontransmitted = true; 139 link_conf->bssid_index = params.index; 140 } 141 if (params.ema) 142 link_conf->ema_ap = true; 143 144 return 0; 145 } 146 147 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 148 const char *name, 149 unsigned char name_assign_type, 150 enum nl80211_iftype type, 151 struct vif_params *params) 152 { 153 struct ieee80211_local *local = wiphy_priv(wiphy); 154 struct wireless_dev *wdev; 155 struct ieee80211_sub_if_data *sdata; 156 int err; 157 158 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 159 if (err) 160 return ERR_PTR(err); 161 162 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 163 164 if (type == NL80211_IFTYPE_MONITOR) { 165 err = ieee80211_set_mon_options(sdata, params); 166 if (err) { 167 ieee80211_if_remove(sdata); 168 return NULL; 169 } 170 } 171 172 return wdev; 173 } 174 175 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 176 { 177 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 178 179 return 0; 180 } 181 182 static int ieee80211_change_iface(struct wiphy *wiphy, 183 struct net_device *dev, 184 enum nl80211_iftype type, 185 struct vif_params *params) 186 { 187 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 188 struct ieee80211_local *local = sdata->local; 189 struct sta_info *sta; 190 int ret; 191 192 ret = ieee80211_if_change_type(sdata, type); 193 if (ret) 194 return ret; 195 196 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 197 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 198 ieee80211_check_fast_rx_iface(sdata); 199 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 200 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 201 202 if (params->use_4addr == ifmgd->use_4addr) 203 return 0; 204 205 sdata->u.mgd.use_4addr = params->use_4addr; 206 if (!ifmgd->associated) 207 return 0; 208 209 mutex_lock(&local->sta_mtx); 210 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 211 if (sta) 212 drv_sta_set_4addr(local, sdata, &sta->sta, 213 params->use_4addr); 214 mutex_unlock(&local->sta_mtx); 215 216 if (params->use_4addr) 217 ieee80211_send_4addr_nullfunc(local, sdata); 218 } 219 220 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 221 ret = ieee80211_set_mon_options(sdata, params); 222 if (ret) 223 return ret; 224 } 225 226 return 0; 227 } 228 229 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 230 struct wireless_dev *wdev) 231 { 232 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 233 int ret; 234 235 mutex_lock(&sdata->local->chanctx_mtx); 236 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 237 mutex_unlock(&sdata->local->chanctx_mtx); 238 if (ret < 0) 239 return ret; 240 241 return ieee80211_do_open(wdev, true); 242 } 243 244 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 245 struct wireless_dev *wdev) 246 { 247 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 248 } 249 250 static int ieee80211_start_nan(struct wiphy *wiphy, 251 struct wireless_dev *wdev, 252 struct cfg80211_nan_conf *conf) 253 { 254 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 255 int ret; 256 257 mutex_lock(&sdata->local->chanctx_mtx); 258 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 259 mutex_unlock(&sdata->local->chanctx_mtx); 260 if (ret < 0) 261 return ret; 262 263 ret = ieee80211_do_open(wdev, true); 264 if (ret) 265 return ret; 266 267 ret = drv_start_nan(sdata->local, sdata, conf); 268 if (ret) 269 ieee80211_sdata_stop(sdata); 270 271 sdata->u.nan.conf = *conf; 272 273 return ret; 274 } 275 276 static void ieee80211_stop_nan(struct wiphy *wiphy, 277 struct wireless_dev *wdev) 278 { 279 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 280 281 drv_stop_nan(sdata->local, sdata); 282 ieee80211_sdata_stop(sdata); 283 } 284 285 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 286 struct wireless_dev *wdev, 287 struct cfg80211_nan_conf *conf, 288 u32 changes) 289 { 290 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 291 struct cfg80211_nan_conf new_conf; 292 int ret = 0; 293 294 if (sdata->vif.type != NL80211_IFTYPE_NAN) 295 return -EOPNOTSUPP; 296 297 if (!ieee80211_sdata_running(sdata)) 298 return -ENETDOWN; 299 300 new_conf = sdata->u.nan.conf; 301 302 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 303 new_conf.master_pref = conf->master_pref; 304 305 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 306 new_conf.bands = conf->bands; 307 308 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 309 if (!ret) 310 sdata->u.nan.conf = new_conf; 311 312 return ret; 313 } 314 315 static int ieee80211_add_nan_func(struct wiphy *wiphy, 316 struct wireless_dev *wdev, 317 struct cfg80211_nan_func *nan_func) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 int ret; 321 322 if (sdata->vif.type != NL80211_IFTYPE_NAN) 323 return -EOPNOTSUPP; 324 325 if (!ieee80211_sdata_running(sdata)) 326 return -ENETDOWN; 327 328 spin_lock_bh(&sdata->u.nan.func_lock); 329 330 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 331 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 332 GFP_ATOMIC); 333 spin_unlock_bh(&sdata->u.nan.func_lock); 334 335 if (ret < 0) 336 return ret; 337 338 nan_func->instance_id = ret; 339 340 WARN_ON(nan_func->instance_id == 0); 341 342 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 343 if (ret) { 344 spin_lock_bh(&sdata->u.nan.func_lock); 345 idr_remove(&sdata->u.nan.function_inst_ids, 346 nan_func->instance_id); 347 spin_unlock_bh(&sdata->u.nan.func_lock); 348 } 349 350 return ret; 351 } 352 353 static struct cfg80211_nan_func * 354 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 355 u64 cookie) 356 { 357 struct cfg80211_nan_func *func; 358 int id; 359 360 lockdep_assert_held(&sdata->u.nan.func_lock); 361 362 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 363 if (func->cookie == cookie) 364 return func; 365 } 366 367 return NULL; 368 } 369 370 static void ieee80211_del_nan_func(struct wiphy *wiphy, 371 struct wireless_dev *wdev, u64 cookie) 372 { 373 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 374 struct cfg80211_nan_func *func; 375 u8 instance_id = 0; 376 377 if (sdata->vif.type != NL80211_IFTYPE_NAN || 378 !ieee80211_sdata_running(sdata)) 379 return; 380 381 spin_lock_bh(&sdata->u.nan.func_lock); 382 383 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 384 if (func) 385 instance_id = func->instance_id; 386 387 spin_unlock_bh(&sdata->u.nan.func_lock); 388 389 if (instance_id) 390 drv_del_nan_func(sdata->local, sdata, instance_id); 391 } 392 393 static int ieee80211_set_noack_map(struct wiphy *wiphy, 394 struct net_device *dev, 395 u16 noack_map) 396 { 397 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 398 399 sdata->noack_map = noack_map; 400 401 ieee80211_check_fast_xmit_iface(sdata); 402 403 return 0; 404 } 405 406 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 407 const u8 *mac_addr, u8 key_idx) 408 { 409 struct ieee80211_local *local = sdata->local; 410 struct ieee80211_key *key; 411 struct sta_info *sta; 412 int ret = -EINVAL; 413 414 if (!wiphy_ext_feature_isset(local->hw.wiphy, 415 NL80211_EXT_FEATURE_EXT_KEY_ID)) 416 return -EINVAL; 417 418 sta = sta_info_get_bss(sdata, mac_addr); 419 420 if (!sta) 421 return -EINVAL; 422 423 if (sta->ptk_idx == key_idx) 424 return 0; 425 426 mutex_lock(&local->key_mtx); 427 key = key_mtx_dereference(local, sta->ptk[key_idx]); 428 429 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 430 ret = ieee80211_set_tx_key(key); 431 432 mutex_unlock(&local->key_mtx); 433 return ret; 434 } 435 436 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 437 u8 key_idx, bool pairwise, const u8 *mac_addr, 438 struct key_params *params) 439 { 440 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 441 struct ieee80211_local *local = sdata->local; 442 struct sta_info *sta = NULL; 443 struct ieee80211_key *key; 444 int err; 445 446 if (!ieee80211_sdata_running(sdata)) 447 return -ENETDOWN; 448 449 if (pairwise && params->mode == NL80211_KEY_SET_TX) 450 return ieee80211_set_tx(sdata, mac_addr, key_idx); 451 452 /* reject WEP and TKIP keys if WEP failed to initialize */ 453 switch (params->cipher) { 454 case WLAN_CIPHER_SUITE_WEP40: 455 case WLAN_CIPHER_SUITE_TKIP: 456 case WLAN_CIPHER_SUITE_WEP104: 457 if (WARN_ON_ONCE(fips_enabled)) 458 return -EINVAL; 459 break; 460 default: 461 break; 462 } 463 464 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 465 params->key, params->seq_len, params->seq); 466 if (IS_ERR(key)) 467 return PTR_ERR(key); 468 469 if (pairwise) 470 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 471 472 if (params->mode == NL80211_KEY_NO_TX) 473 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 474 475 mutex_lock(&local->sta_mtx); 476 477 if (mac_addr) { 478 sta = sta_info_get_bss(sdata, mac_addr); 479 /* 480 * The ASSOC test makes sure the driver is ready to 481 * receive the key. When wpa_supplicant has roamed 482 * using FT, it attempts to set the key before 483 * association has completed, this rejects that attempt 484 * so it will set the key again after association. 485 * 486 * TODO: accept the key if we have a station entry and 487 * add it to the device after the station. 488 */ 489 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 490 ieee80211_key_free_unused(key); 491 err = -ENOENT; 492 goto out_unlock; 493 } 494 } 495 496 switch (sdata->vif.type) { 497 case NL80211_IFTYPE_STATION: 498 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 499 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 500 break; 501 case NL80211_IFTYPE_AP: 502 case NL80211_IFTYPE_AP_VLAN: 503 /* Keys without a station are used for TX only */ 504 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 505 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 506 break; 507 case NL80211_IFTYPE_ADHOC: 508 /* no MFP (yet) */ 509 break; 510 case NL80211_IFTYPE_MESH_POINT: 511 #ifdef CONFIG_MAC80211_MESH 512 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 513 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 514 break; 515 #endif 516 case NL80211_IFTYPE_WDS: 517 case NL80211_IFTYPE_MONITOR: 518 case NL80211_IFTYPE_P2P_DEVICE: 519 case NL80211_IFTYPE_NAN: 520 case NL80211_IFTYPE_UNSPECIFIED: 521 case NUM_NL80211_IFTYPES: 522 case NL80211_IFTYPE_P2P_CLIENT: 523 case NL80211_IFTYPE_P2P_GO: 524 case NL80211_IFTYPE_OCB: 525 /* shouldn't happen */ 526 WARN_ON_ONCE(1); 527 break; 528 } 529 530 err = ieee80211_key_link(key, sdata, sta); 531 532 out_unlock: 533 mutex_unlock(&local->sta_mtx); 534 535 return err; 536 } 537 538 static struct ieee80211_key * 539 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, 540 u8 key_idx, bool pairwise, const u8 *mac_addr) 541 { 542 struct ieee80211_local *local = sdata->local; 543 struct ieee80211_key *key; 544 struct sta_info *sta; 545 546 if (mac_addr) { 547 sta = sta_info_get_bss(sdata, mac_addr); 548 if (!sta) 549 return NULL; 550 551 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 552 return rcu_dereference_check_key_mtx(local, 553 sta->ptk[key_idx]); 554 555 if (!pairwise && 556 key_idx < NUM_DEFAULT_KEYS + 557 NUM_DEFAULT_MGMT_KEYS + 558 NUM_DEFAULT_BEACON_KEYS) 559 return rcu_dereference_check_key_mtx(local, 560 sta->deflink.gtk[key_idx]); 561 562 return NULL; 563 } 564 565 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 566 return rcu_dereference_check_key_mtx(local, 567 sdata->keys[key_idx]); 568 569 key = rcu_dereference_check_key_mtx(local, sdata->deflink.gtk[key_idx]); 570 if (key) 571 return key; 572 573 /* or maybe it was a WEP key */ 574 if (key_idx < NUM_DEFAULT_KEYS) 575 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]); 576 577 return NULL; 578 } 579 580 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 581 u8 key_idx, bool pairwise, const u8 *mac_addr) 582 { 583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 584 struct ieee80211_local *local = sdata->local; 585 struct ieee80211_key *key; 586 int ret; 587 588 mutex_lock(&local->sta_mtx); 589 mutex_lock(&local->key_mtx); 590 591 key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr); 592 if (!key) { 593 ret = -ENOENT; 594 goto out_unlock; 595 } 596 597 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 598 599 ret = 0; 600 out_unlock: 601 mutex_unlock(&local->key_mtx); 602 mutex_unlock(&local->sta_mtx); 603 604 return ret; 605 } 606 607 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 608 u8 key_idx, bool pairwise, const u8 *mac_addr, 609 void *cookie, 610 void (*callback)(void *cookie, 611 struct key_params *params)) 612 { 613 struct ieee80211_sub_if_data *sdata; 614 u8 seq[6] = {0}; 615 struct key_params params; 616 struct ieee80211_key *key; 617 u64 pn64; 618 u32 iv32; 619 u16 iv16; 620 int err = -ENOENT; 621 struct ieee80211_key_seq kseq = {}; 622 623 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 624 625 rcu_read_lock(); 626 627 key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr); 628 if (!key) 629 goto out; 630 631 memset(¶ms, 0, sizeof(params)); 632 633 params.cipher = key->conf.cipher; 634 635 switch (key->conf.cipher) { 636 case WLAN_CIPHER_SUITE_TKIP: 637 pn64 = atomic64_read(&key->conf.tx_pn); 638 iv32 = TKIP_PN_TO_IV32(pn64); 639 iv16 = TKIP_PN_TO_IV16(pn64); 640 641 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 642 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 643 drv_get_key_seq(sdata->local, key, &kseq); 644 iv32 = kseq.tkip.iv32; 645 iv16 = kseq.tkip.iv16; 646 } 647 648 seq[0] = iv16 & 0xff; 649 seq[1] = (iv16 >> 8) & 0xff; 650 seq[2] = iv32 & 0xff; 651 seq[3] = (iv32 >> 8) & 0xff; 652 seq[4] = (iv32 >> 16) & 0xff; 653 seq[5] = (iv32 >> 24) & 0xff; 654 params.seq = seq; 655 params.seq_len = 6; 656 break; 657 case WLAN_CIPHER_SUITE_CCMP: 658 case WLAN_CIPHER_SUITE_CCMP_256: 659 case WLAN_CIPHER_SUITE_AES_CMAC: 660 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 661 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 662 offsetof(typeof(kseq), aes_cmac)); 663 fallthrough; 664 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 665 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 666 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 667 offsetof(typeof(kseq), aes_gmac)); 668 fallthrough; 669 case WLAN_CIPHER_SUITE_GCMP: 670 case WLAN_CIPHER_SUITE_GCMP_256: 671 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 672 offsetof(typeof(kseq), gcmp)); 673 674 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 675 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 676 drv_get_key_seq(sdata->local, key, &kseq); 677 memcpy(seq, kseq.ccmp.pn, 6); 678 } else { 679 pn64 = atomic64_read(&key->conf.tx_pn); 680 seq[0] = pn64; 681 seq[1] = pn64 >> 8; 682 seq[2] = pn64 >> 16; 683 seq[3] = pn64 >> 24; 684 seq[4] = pn64 >> 32; 685 seq[5] = pn64 >> 40; 686 } 687 params.seq = seq; 688 params.seq_len = 6; 689 break; 690 default: 691 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 692 break; 693 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 694 break; 695 drv_get_key_seq(sdata->local, key, &kseq); 696 params.seq = kseq.hw.seq; 697 params.seq_len = kseq.hw.seq_len; 698 break; 699 } 700 701 params.key = key->conf.key; 702 params.key_len = key->conf.keylen; 703 704 callback(cookie, ¶ms); 705 err = 0; 706 707 out: 708 rcu_read_unlock(); 709 return err; 710 } 711 712 static int ieee80211_config_default_key(struct wiphy *wiphy, 713 struct net_device *dev, 714 u8 key_idx, bool uni, 715 bool multi) 716 { 717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 718 719 ieee80211_set_default_key(sdata, key_idx, uni, multi); 720 721 return 0; 722 } 723 724 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 725 struct net_device *dev, 726 u8 key_idx) 727 { 728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 729 730 ieee80211_set_default_mgmt_key(sdata, key_idx); 731 732 return 0; 733 } 734 735 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 736 struct net_device *dev, 737 u8 key_idx) 738 { 739 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 740 741 ieee80211_set_default_beacon_key(sdata, key_idx); 742 743 return 0; 744 } 745 746 void sta_set_rate_info_tx(struct sta_info *sta, 747 const struct ieee80211_tx_rate *rate, 748 struct rate_info *rinfo) 749 { 750 rinfo->flags = 0; 751 if (rate->flags & IEEE80211_TX_RC_MCS) { 752 rinfo->flags |= RATE_INFO_FLAGS_MCS; 753 rinfo->mcs = rate->idx; 754 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 755 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 756 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 757 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 758 } else { 759 struct ieee80211_supported_band *sband; 760 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 761 u16 brate; 762 763 sband = ieee80211_get_sband(sta->sdata); 764 WARN_ON_ONCE(sband && !sband->bitrates); 765 if (sband && sband->bitrates) { 766 brate = sband->bitrates[rate->idx].bitrate; 767 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 768 } 769 } 770 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 771 rinfo->bw = RATE_INFO_BW_40; 772 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 773 rinfo->bw = RATE_INFO_BW_80; 774 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 775 rinfo->bw = RATE_INFO_BW_160; 776 else 777 rinfo->bw = RATE_INFO_BW_20; 778 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 779 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 780 } 781 782 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 783 int idx, u8 *mac, struct station_info *sinfo) 784 { 785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 786 struct ieee80211_local *local = sdata->local; 787 struct sta_info *sta; 788 int ret = -ENOENT; 789 790 mutex_lock(&local->sta_mtx); 791 792 sta = sta_info_get_by_idx(sdata, idx); 793 if (sta) { 794 ret = 0; 795 memcpy(mac, sta->sta.addr, ETH_ALEN); 796 sta_set_sinfo(sta, sinfo, true); 797 } 798 799 mutex_unlock(&local->sta_mtx); 800 801 return ret; 802 } 803 804 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 805 int idx, struct survey_info *survey) 806 { 807 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 808 809 return drv_get_survey(local, idx, survey); 810 } 811 812 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 813 const u8 *mac, struct station_info *sinfo) 814 { 815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 816 struct ieee80211_local *local = sdata->local; 817 struct sta_info *sta; 818 int ret = -ENOENT; 819 820 mutex_lock(&local->sta_mtx); 821 822 sta = sta_info_get_bss(sdata, mac); 823 if (sta) { 824 ret = 0; 825 sta_set_sinfo(sta, sinfo, true); 826 } 827 828 mutex_unlock(&local->sta_mtx); 829 830 return ret; 831 } 832 833 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 834 struct cfg80211_chan_def *chandef) 835 { 836 struct ieee80211_local *local = wiphy_priv(wiphy); 837 struct ieee80211_sub_if_data *sdata; 838 int ret = 0; 839 840 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 841 return 0; 842 843 mutex_lock(&local->mtx); 844 if (local->use_chanctx) { 845 sdata = wiphy_dereference(local->hw.wiphy, 846 local->monitor_sdata); 847 if (sdata) { 848 ieee80211_link_release_channel(&sdata->deflink); 849 ret = ieee80211_link_use_channel(&sdata->deflink, 850 chandef, 851 IEEE80211_CHANCTX_EXCLUSIVE); 852 } 853 } else if (local->open_count == local->monitors) { 854 local->_oper_chandef = *chandef; 855 ieee80211_hw_config(local, 0); 856 } 857 858 if (ret == 0) 859 local->monitor_chandef = *chandef; 860 mutex_unlock(&local->mtx); 861 862 return ret; 863 } 864 865 static int 866 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 867 const u8 *resp, size_t resp_len, 868 const struct ieee80211_csa_settings *csa, 869 const struct ieee80211_color_change_settings *cca, 870 struct ieee80211_link_data *link) 871 { 872 struct probe_resp *new, *old; 873 874 if (!resp || !resp_len) 875 return 1; 876 877 old = sdata_dereference(link->u.ap.probe_resp, sdata); 878 879 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 880 if (!new) 881 return -ENOMEM; 882 883 new->len = resp_len; 884 memcpy(new->data, resp, resp_len); 885 886 if (csa) 887 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 888 csa->n_counter_offsets_presp * 889 sizeof(new->cntdwn_counter_offsets[0])); 890 else if (cca) 891 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 892 893 rcu_assign_pointer(link->u.ap.probe_resp, new); 894 if (old) 895 kfree_rcu(old, rcu_head); 896 897 return 0; 898 } 899 900 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 901 struct cfg80211_fils_discovery *params, 902 struct ieee80211_link_data *link, 903 struct ieee80211_bss_conf *link_conf) 904 { 905 struct fils_discovery_data *new, *old = NULL; 906 struct ieee80211_fils_discovery *fd; 907 908 if (!params->tmpl || !params->tmpl_len) 909 return -EINVAL; 910 911 fd = &link_conf->fils_discovery; 912 fd->min_interval = params->min_interval; 913 fd->max_interval = params->max_interval; 914 915 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 916 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 917 if (!new) 918 return -ENOMEM; 919 new->len = params->tmpl_len; 920 memcpy(new->data, params->tmpl, params->tmpl_len); 921 rcu_assign_pointer(link->u.ap.fils_discovery, new); 922 923 if (old) 924 kfree_rcu(old, rcu_head); 925 926 return 0; 927 } 928 929 static int 930 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 931 struct cfg80211_unsol_bcast_probe_resp *params, 932 struct ieee80211_link_data *link, 933 struct ieee80211_bss_conf *link_conf) 934 { 935 struct unsol_bcast_probe_resp_data *new, *old = NULL; 936 937 if (!params->tmpl || !params->tmpl_len) 938 return -EINVAL; 939 940 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 941 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 942 if (!new) 943 return -ENOMEM; 944 new->len = params->tmpl_len; 945 memcpy(new->data, params->tmpl, params->tmpl_len); 946 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 947 948 if (old) 949 kfree_rcu(old, rcu_head); 950 951 link_conf->unsol_bcast_probe_resp_interval = params->interval; 952 953 return 0; 954 } 955 956 static int ieee80211_set_ftm_responder_params( 957 struct ieee80211_sub_if_data *sdata, 958 const u8 *lci, size_t lci_len, 959 const u8 *civicloc, size_t civicloc_len, 960 struct ieee80211_bss_conf *link_conf) 961 { 962 struct ieee80211_ftm_responder_params *new, *old; 963 u8 *pos; 964 int len; 965 966 if (!lci_len && !civicloc_len) 967 return 0; 968 969 old = link_conf->ftmr_params; 970 len = lci_len + civicloc_len; 971 972 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 973 if (!new) 974 return -ENOMEM; 975 976 pos = (u8 *)(new + 1); 977 if (lci_len) { 978 new->lci_len = lci_len; 979 new->lci = pos; 980 memcpy(pos, lci, lci_len); 981 pos += lci_len; 982 } 983 984 if (civicloc_len) { 985 new->civicloc_len = civicloc_len; 986 new->civicloc = pos; 987 memcpy(pos, civicloc, civicloc_len); 988 pos += civicloc_len; 989 } 990 991 link_conf->ftmr_params = new; 992 kfree(old); 993 994 return 0; 995 } 996 997 static int 998 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 999 struct cfg80211_mbssid_elems *src) 1000 { 1001 int i, offset = 0; 1002 1003 for (i = 0; i < src->cnt; i++) { 1004 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1005 dst->elem[i].len = src->elem[i].len; 1006 dst->elem[i].data = pos + offset; 1007 offset += dst->elem[i].len; 1008 } 1009 dst->cnt = src->cnt; 1010 1011 return offset; 1012 } 1013 1014 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1015 struct ieee80211_link_data *link, 1016 struct cfg80211_beacon_data *params, 1017 const struct ieee80211_csa_settings *csa, 1018 const struct ieee80211_color_change_settings *cca) 1019 { 1020 struct cfg80211_mbssid_elems *mbssid = NULL; 1021 struct beacon_data *new, *old; 1022 int new_head_len, new_tail_len; 1023 int size, err; 1024 u32 changed = BSS_CHANGED_BEACON; 1025 struct ieee80211_bss_conf *link_conf = link->conf; 1026 1027 old = sdata_dereference(link->u.ap.beacon, sdata); 1028 1029 /* Need to have a beacon head if we don't have one yet */ 1030 if (!params->head && !old) 1031 return -EINVAL; 1032 1033 /* new or old head? */ 1034 if (params->head) 1035 new_head_len = params->head_len; 1036 else 1037 new_head_len = old->head_len; 1038 1039 /* new or old tail? */ 1040 if (params->tail || !old) 1041 /* params->tail_len will be zero for !params->tail */ 1042 new_tail_len = params->tail_len; 1043 else 1044 new_tail_len = old->tail_len; 1045 1046 size = sizeof(*new) + new_head_len + new_tail_len; 1047 1048 /* new or old multiple BSSID elements? */ 1049 if (params->mbssid_ies) { 1050 mbssid = params->mbssid_ies; 1051 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1052 size += ieee80211_get_mbssid_beacon_len(mbssid); 1053 } else if (old && old->mbssid_ies) { 1054 mbssid = old->mbssid_ies; 1055 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1056 size += ieee80211_get_mbssid_beacon_len(mbssid); 1057 } 1058 1059 new = kzalloc(size, GFP_KERNEL); 1060 if (!new) 1061 return -ENOMEM; 1062 1063 /* start filling the new info now */ 1064 1065 /* 1066 * pointers go into the block we allocated, 1067 * memory is | beacon_data | head | tail | mbssid_ies 1068 */ 1069 new->head = ((u8 *) new) + sizeof(*new); 1070 new->tail = new->head + new_head_len; 1071 new->head_len = new_head_len; 1072 new->tail_len = new_tail_len; 1073 /* copy in optional mbssid_ies */ 1074 if (mbssid) { 1075 u8 *pos = new->tail + new->tail_len; 1076 1077 new->mbssid_ies = (void *)pos; 1078 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1079 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1080 /* update bssid_indicator */ 1081 link_conf->bssid_indicator = 1082 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1083 } 1084 1085 if (csa) { 1086 new->cntdwn_current_counter = csa->count; 1087 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1088 csa->n_counter_offsets_beacon * 1089 sizeof(new->cntdwn_counter_offsets[0])); 1090 } else if (cca) { 1091 new->cntdwn_current_counter = cca->count; 1092 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1093 } 1094 1095 /* copy in head */ 1096 if (params->head) 1097 memcpy(new->head, params->head, new_head_len); 1098 else 1099 memcpy(new->head, old->head, new_head_len); 1100 1101 /* copy in optional tail */ 1102 if (params->tail) 1103 memcpy(new->tail, params->tail, new_tail_len); 1104 else 1105 if (old) 1106 memcpy(new->tail, old->tail, new_tail_len); 1107 1108 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1109 params->probe_resp_len, csa, cca, link); 1110 if (err < 0) { 1111 kfree(new); 1112 return err; 1113 } 1114 if (err == 0) 1115 changed |= BSS_CHANGED_AP_PROBE_RESP; 1116 1117 if (params->ftm_responder != -1) { 1118 link_conf->ftm_responder = params->ftm_responder; 1119 err = ieee80211_set_ftm_responder_params(sdata, 1120 params->lci, 1121 params->lci_len, 1122 params->civicloc, 1123 params->civicloc_len, 1124 link_conf); 1125 1126 if (err < 0) { 1127 kfree(new); 1128 return err; 1129 } 1130 1131 changed |= BSS_CHANGED_FTM_RESPONDER; 1132 } 1133 1134 rcu_assign_pointer(link->u.ap.beacon, new); 1135 sdata->u.ap.active = true; 1136 1137 if (old) 1138 kfree_rcu(old, rcu_head); 1139 1140 return changed; 1141 } 1142 1143 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1144 struct cfg80211_ap_settings *params) 1145 { 1146 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1147 struct ieee80211_local *local = sdata->local; 1148 struct beacon_data *old; 1149 struct ieee80211_sub_if_data *vlan; 1150 u32 changed = BSS_CHANGED_BEACON_INT | 1151 BSS_CHANGED_BEACON_ENABLED | 1152 BSS_CHANGED_BEACON | 1153 BSS_CHANGED_P2P_PS | 1154 BSS_CHANGED_TXPOWER | 1155 BSS_CHANGED_TWT; 1156 int i, err; 1157 int prev_beacon_int; 1158 unsigned int link_id = params->beacon.link_id; 1159 struct ieee80211_link_data *link; 1160 struct ieee80211_bss_conf *link_conf; 1161 1162 link = sdata_dereference(sdata->link[link_id], sdata); 1163 if (!link) 1164 return -ENOLINK; 1165 1166 link_conf = link->conf; 1167 1168 old = sdata_dereference(link->u.ap.beacon, sdata); 1169 if (old) 1170 return -EALREADY; 1171 1172 if (params->smps_mode != NL80211_SMPS_OFF) 1173 return -ENOTSUPP; 1174 1175 link->smps_mode = IEEE80211_SMPS_OFF; 1176 1177 link->needed_rx_chains = sdata->local->rx_chains; 1178 1179 prev_beacon_int = link_conf->beacon_int; 1180 link_conf->beacon_int = params->beacon_interval; 1181 1182 if (params->he_cap && params->he_oper) { 1183 link_conf->he_support = true; 1184 link_conf->htc_trig_based_pkt_ext = 1185 le32_get_bits(params->he_oper->he_oper_params, 1186 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1187 link_conf->frame_time_rts_th = 1188 le32_get_bits(params->he_oper->he_oper_params, 1189 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1190 changed |= BSS_CHANGED_HE_OBSS_PD; 1191 1192 if (params->beacon.he_bss_color.enabled) 1193 changed |= BSS_CHANGED_HE_BSS_COLOR; 1194 } 1195 1196 if (sdata->vif.type == NL80211_IFTYPE_AP && 1197 params->mbssid_config.tx_wdev) { 1198 err = ieee80211_set_ap_mbssid_options(sdata, 1199 params->mbssid_config, 1200 link_conf); 1201 if (err) 1202 return err; 1203 } 1204 1205 mutex_lock(&local->mtx); 1206 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1207 IEEE80211_CHANCTX_SHARED); 1208 if (!err) 1209 ieee80211_link_copy_chanctx_to_vlans(link, false); 1210 mutex_unlock(&local->mtx); 1211 if (err) { 1212 link_conf->beacon_int = prev_beacon_int; 1213 return err; 1214 } 1215 1216 /* 1217 * Apply control port protocol, this allows us to 1218 * not encrypt dynamic WEP control frames. 1219 */ 1220 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1221 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1222 sdata->control_port_over_nl80211 = 1223 params->crypto.control_port_over_nl80211; 1224 sdata->control_port_no_preauth = 1225 params->crypto.control_port_no_preauth; 1226 1227 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1228 vlan->control_port_protocol = 1229 params->crypto.control_port_ethertype; 1230 vlan->control_port_no_encrypt = 1231 params->crypto.control_port_no_encrypt; 1232 vlan->control_port_over_nl80211 = 1233 params->crypto.control_port_over_nl80211; 1234 vlan->control_port_no_preauth = 1235 params->crypto.control_port_no_preauth; 1236 } 1237 1238 link_conf->dtim_period = params->dtim_period; 1239 link_conf->enable_beacon = true; 1240 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1241 link_conf->twt_responder = params->twt_responder; 1242 link_conf->he_obss_pd = params->he_obss_pd; 1243 link_conf->he_bss_color = params->beacon.he_bss_color; 1244 sdata->vif.cfg.s1g = params->chandef.chan->band == 1245 NL80211_BAND_S1GHZ; 1246 1247 sdata->vif.cfg.ssid_len = params->ssid_len; 1248 if (params->ssid_len) 1249 memcpy(sdata->vif.cfg.ssid, params->ssid, 1250 params->ssid_len); 1251 link_conf->hidden_ssid = 1252 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1253 1254 memset(&link_conf->p2p_noa_attr, 0, 1255 sizeof(link_conf->p2p_noa_attr)); 1256 link_conf->p2p_noa_attr.oppps_ctwindow = 1257 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1258 if (params->p2p_opp_ps) 1259 link_conf->p2p_noa_attr.oppps_ctwindow |= 1260 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1261 1262 sdata->beacon_rate_set = false; 1263 if (wiphy_ext_feature_isset(local->hw.wiphy, 1264 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1265 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1266 sdata->beacon_rateidx_mask[i] = 1267 params->beacon_rate.control[i].legacy; 1268 if (sdata->beacon_rateidx_mask[i]) 1269 sdata->beacon_rate_set = true; 1270 } 1271 } 1272 1273 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1274 link_conf->beacon_tx_rate = params->beacon_rate; 1275 1276 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL); 1277 if (err < 0) 1278 goto error; 1279 changed |= err; 1280 1281 if (params->fils_discovery.max_interval) { 1282 err = ieee80211_set_fils_discovery(sdata, 1283 ¶ms->fils_discovery, 1284 link, link_conf); 1285 if (err < 0) 1286 goto error; 1287 changed |= BSS_CHANGED_FILS_DISCOVERY; 1288 } 1289 1290 if (params->unsol_bcast_probe_resp.interval) { 1291 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1292 ¶ms->unsol_bcast_probe_resp, 1293 link, link_conf); 1294 if (err < 0) 1295 goto error; 1296 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1297 } 1298 1299 err = drv_start_ap(sdata->local, sdata, link_id); 1300 if (err) { 1301 old = sdata_dereference(link->u.ap.beacon, sdata); 1302 1303 if (old) 1304 kfree_rcu(old, rcu_head); 1305 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1306 sdata->u.ap.active = false; 1307 goto error; 1308 } 1309 1310 ieee80211_recalc_dtim(local, sdata); 1311 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1312 ieee80211_link_info_change_notify(sdata, link, changed); 1313 1314 netif_carrier_on(dev); 1315 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1316 netif_carrier_on(vlan->dev); 1317 1318 return 0; 1319 1320 error: 1321 mutex_lock(&local->mtx); 1322 ieee80211_link_release_channel(link); 1323 mutex_unlock(&local->mtx); 1324 1325 return err; 1326 } 1327 1328 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1329 struct cfg80211_beacon_data *params) 1330 { 1331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1332 struct ieee80211_link_data *link; 1333 struct beacon_data *old; 1334 int err; 1335 struct ieee80211_bss_conf *link_conf; 1336 1337 sdata_assert_lock(sdata); 1338 1339 link = sdata_dereference(sdata->link[params->link_id], sdata); 1340 if (!link) 1341 return -ENOLINK; 1342 1343 link_conf = link->conf; 1344 1345 /* don't allow changing the beacon while a countdown is in place - offset 1346 * of channel switch counter may change 1347 */ 1348 if (link_conf->csa_active || link_conf->color_change_active) 1349 return -EBUSY; 1350 1351 old = sdata_dereference(link->u.ap.beacon, sdata); 1352 if (!old) 1353 return -ENOENT; 1354 1355 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL); 1356 if (err < 0) 1357 return err; 1358 1359 if (params->he_bss_color_valid && 1360 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1361 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1362 err |= BSS_CHANGED_HE_BSS_COLOR; 1363 } 1364 1365 ieee80211_link_info_change_notify(sdata, link, err); 1366 return 0; 1367 } 1368 1369 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1370 { 1371 if (!link->u.ap.next_beacon) 1372 return; 1373 1374 kfree(link->u.ap.next_beacon->mbssid_ies); 1375 kfree(link->u.ap.next_beacon); 1376 link->u.ap.next_beacon = NULL; 1377 } 1378 1379 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1380 unsigned int link_id) 1381 { 1382 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1383 struct ieee80211_sub_if_data *vlan; 1384 struct ieee80211_local *local = sdata->local; 1385 struct beacon_data *old_beacon; 1386 struct probe_resp *old_probe_resp; 1387 struct fils_discovery_data *old_fils_discovery; 1388 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1389 struct cfg80211_chan_def chandef; 1390 struct ieee80211_link_data *link = 1391 sdata_dereference(sdata->link[link_id], sdata); 1392 struct ieee80211_bss_conf *link_conf = link->conf; 1393 1394 sdata_assert_lock(sdata); 1395 1396 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1397 if (!old_beacon) 1398 return -ENOENT; 1399 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1400 sdata); 1401 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1402 sdata); 1403 old_unsol_bcast_probe_resp = 1404 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1405 sdata); 1406 1407 /* abort any running channel switch */ 1408 mutex_lock(&local->mtx); 1409 link_conf->csa_active = false; 1410 if (link->csa_block_tx) { 1411 ieee80211_wake_vif_queues(local, sdata, 1412 IEEE80211_QUEUE_STOP_REASON_CSA); 1413 link->csa_block_tx = false; 1414 } 1415 1416 mutex_unlock(&local->mtx); 1417 1418 ieee80211_free_next_beacon(link); 1419 1420 /* turn off carrier for this interface and dependent VLANs */ 1421 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1422 netif_carrier_off(vlan->dev); 1423 netif_carrier_off(dev); 1424 1425 /* remove beacon and probe response */ 1426 sdata->u.ap.active = false; 1427 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1428 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1429 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1430 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1431 kfree_rcu(old_beacon, rcu_head); 1432 if (old_probe_resp) 1433 kfree_rcu(old_probe_resp, rcu_head); 1434 if (old_fils_discovery) 1435 kfree_rcu(old_fils_discovery, rcu_head); 1436 if (old_unsol_bcast_probe_resp) 1437 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1438 1439 kfree(link_conf->ftmr_params); 1440 link_conf->ftmr_params = NULL; 1441 1442 __sta_info_flush(sdata, true); 1443 ieee80211_free_keys(sdata, true); 1444 1445 link_conf->enable_beacon = false; 1446 sdata->beacon_rate_set = false; 1447 sdata->vif.cfg.ssid_len = 0; 1448 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1449 ieee80211_link_info_change_notify(sdata, link, 1450 BSS_CHANGED_BEACON_ENABLED); 1451 1452 if (sdata->wdev.cac_started) { 1453 chandef = link_conf->chandef; 1454 cancel_delayed_work_sync(&link->dfs_cac_timer_work); 1455 cfg80211_cac_event(sdata->dev, &chandef, 1456 NL80211_RADAR_CAC_ABORTED, 1457 GFP_KERNEL); 1458 } 1459 1460 drv_stop_ap(sdata->local, sdata, link_id); 1461 1462 /* free all potentially still buffered bcast frames */ 1463 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1464 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1465 1466 mutex_lock(&local->mtx); 1467 ieee80211_link_copy_chanctx_to_vlans(link, true); 1468 ieee80211_link_release_channel(link); 1469 mutex_unlock(&local->mtx); 1470 1471 return 0; 1472 } 1473 1474 static int sta_apply_auth_flags(struct ieee80211_local *local, 1475 struct sta_info *sta, 1476 u32 mask, u32 set) 1477 { 1478 int ret; 1479 1480 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1481 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1482 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1483 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1484 if (ret) 1485 return ret; 1486 } 1487 1488 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1489 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1490 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1491 /* 1492 * When peer becomes associated, init rate control as 1493 * well. Some drivers require rate control initialized 1494 * before drv_sta_state() is called. 1495 */ 1496 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1497 rate_control_rate_init(sta); 1498 1499 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1500 if (ret) 1501 return ret; 1502 } 1503 1504 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1505 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1506 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1507 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1508 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1509 else 1510 ret = 0; 1511 if (ret) 1512 return ret; 1513 } 1514 1515 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1516 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1517 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1518 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1519 if (ret) 1520 return ret; 1521 } 1522 1523 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1524 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1525 test_sta_flag(sta, WLAN_STA_AUTH)) { 1526 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1527 if (ret) 1528 return ret; 1529 } 1530 1531 return 0; 1532 } 1533 1534 static void sta_apply_mesh_params(struct ieee80211_local *local, 1535 struct sta_info *sta, 1536 struct station_parameters *params) 1537 { 1538 #ifdef CONFIG_MAC80211_MESH 1539 struct ieee80211_sub_if_data *sdata = sta->sdata; 1540 u32 changed = 0; 1541 1542 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1543 switch (params->plink_state) { 1544 case NL80211_PLINK_ESTAB: 1545 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1546 changed = mesh_plink_inc_estab_count(sdata); 1547 sta->mesh->plink_state = params->plink_state; 1548 sta->mesh->aid = params->peer_aid; 1549 1550 ieee80211_mps_sta_status_update(sta); 1551 changed |= ieee80211_mps_set_sta_local_pm(sta, 1552 sdata->u.mesh.mshcfg.power_mode); 1553 1554 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1555 /* init at low value */ 1556 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1557 1558 break; 1559 case NL80211_PLINK_LISTEN: 1560 case NL80211_PLINK_BLOCKED: 1561 case NL80211_PLINK_OPN_SNT: 1562 case NL80211_PLINK_OPN_RCVD: 1563 case NL80211_PLINK_CNF_RCVD: 1564 case NL80211_PLINK_HOLDING: 1565 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1566 changed = mesh_plink_dec_estab_count(sdata); 1567 sta->mesh->plink_state = params->plink_state; 1568 1569 ieee80211_mps_sta_status_update(sta); 1570 changed |= ieee80211_mps_set_sta_local_pm(sta, 1571 NL80211_MESH_POWER_UNKNOWN); 1572 break; 1573 default: 1574 /* nothing */ 1575 break; 1576 } 1577 } 1578 1579 switch (params->plink_action) { 1580 case NL80211_PLINK_ACTION_NO_ACTION: 1581 /* nothing */ 1582 break; 1583 case NL80211_PLINK_ACTION_OPEN: 1584 changed |= mesh_plink_open(sta); 1585 break; 1586 case NL80211_PLINK_ACTION_BLOCK: 1587 changed |= mesh_plink_block(sta); 1588 break; 1589 } 1590 1591 if (params->local_pm) 1592 changed |= ieee80211_mps_set_sta_local_pm(sta, 1593 params->local_pm); 1594 1595 ieee80211_mbss_info_change_notify(sdata, changed); 1596 #endif 1597 } 1598 1599 static int sta_link_apply_parameters(struct ieee80211_local *local, 1600 struct sta_info *sta, 1601 struct link_station_parameters *params) 1602 { 1603 int ret = 0; 1604 struct ieee80211_supported_band *sband; 1605 struct ieee80211_sub_if_data *sdata = sta->sdata; 1606 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1607 struct ieee80211_link_data *link = 1608 sdata_dereference(sdata->link[link_id], sdata); 1609 struct link_sta_info *link_sta = 1610 rcu_dereference_protected(sta->link[link_id], 1611 lockdep_is_held(&local->sta_mtx)); 1612 1613 if (!link || !link_sta) 1614 return -EINVAL; 1615 1616 sband = ieee80211_get_link_sband(link); 1617 if (!sband) 1618 return -EINVAL; 1619 1620 if (params->link_mac) { 1621 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1622 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1623 } 1624 1625 if (params->txpwr_set) { 1626 link_sta->pub->txpwr.type = params->txpwr.type; 1627 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1628 link_sta->pub->txpwr.power = params->txpwr.power; 1629 ret = drv_sta_set_txpwr(local, sdata, sta); 1630 if (ret) 1631 return ret; 1632 } 1633 1634 if (params->supported_rates && 1635 params->supported_rates_len) { 1636 ieee80211_parse_bitrates(&link->conf->chandef, 1637 sband, params->supported_rates, 1638 params->supported_rates_len, 1639 &link_sta->pub->supp_rates[sband->band]); 1640 } 1641 1642 if (params->ht_capa) 1643 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1644 params->ht_capa, link_sta); 1645 1646 /* VHT can override some HT caps such as the A-MSDU max length */ 1647 if (params->vht_capa) 1648 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1649 params->vht_capa, link_sta); 1650 1651 if (params->he_capa) 1652 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1653 (void *)params->he_capa, 1654 params->he_capa_len, 1655 (void *)params->he_6ghz_capa, 1656 link_sta); 1657 1658 if (params->eht_capa) 1659 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1660 (u8 *)params->he_capa, 1661 params->he_capa_len, 1662 params->eht_capa, 1663 params->eht_capa_len, 1664 link_sta); 1665 1666 if (params->opmode_notif_used) { 1667 /* returned value is only needed for rc update, but the 1668 * rc isn't initialized here yet, so ignore it 1669 */ 1670 __ieee80211_vht_handle_opmode(sdata, link_sta, 1671 params->opmode_notif, 1672 sband->band); 1673 } 1674 1675 return ret; 1676 } 1677 1678 static int sta_apply_parameters(struct ieee80211_local *local, 1679 struct sta_info *sta, 1680 struct station_parameters *params) 1681 { 1682 int ret = 0; 1683 struct ieee80211_supported_band *sband; 1684 struct ieee80211_sub_if_data *sdata = sta->sdata; 1685 u32 link_id = params->link_sta_params.link_id < 0 ? 1686 0 : params->link_sta_params.link_id; 1687 struct ieee80211_link_data *link; 1688 u32 mask, set; 1689 1690 link = sdata_dereference(sdata->link[link_id], sdata); 1691 if (!link) 1692 return -ENOLINK; 1693 1694 sband = ieee80211_get_link_sband(link); 1695 if (!sband) 1696 return -EINVAL; 1697 1698 mask = params->sta_flags_mask; 1699 set = params->sta_flags_set; 1700 1701 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1702 /* 1703 * In mesh mode, ASSOCIATED isn't part of the nl80211 1704 * API but must follow AUTHENTICATED for driver state. 1705 */ 1706 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1707 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1708 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1709 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1710 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1711 /* 1712 * TDLS -- everything follows authorized, but 1713 * only becoming authorized is possible, not 1714 * going back 1715 */ 1716 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1717 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1718 BIT(NL80211_STA_FLAG_ASSOCIATED); 1719 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1720 BIT(NL80211_STA_FLAG_ASSOCIATED); 1721 } 1722 } 1723 1724 if (mask & BIT(NL80211_STA_FLAG_WME) && 1725 local->hw.queues >= IEEE80211_NUM_ACS) 1726 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1727 1728 /* auth flags will be set later for TDLS, 1729 * and for unassociated stations that move to associated */ 1730 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1731 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1732 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1733 ret = sta_apply_auth_flags(local, sta, mask, set); 1734 if (ret) 1735 return ret; 1736 } 1737 1738 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1739 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1740 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1741 else 1742 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1743 } 1744 1745 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1746 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1747 if (set & BIT(NL80211_STA_FLAG_MFP)) 1748 set_sta_flag(sta, WLAN_STA_MFP); 1749 else 1750 clear_sta_flag(sta, WLAN_STA_MFP); 1751 } 1752 1753 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1754 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1755 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1756 else 1757 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1758 } 1759 1760 /* mark TDLS channel switch support, if the AP allows it */ 1761 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1762 !sdata->u.mgd.tdls_chan_switch_prohibited && 1763 params->ext_capab_len >= 4 && 1764 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1765 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1766 1767 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1768 !sdata->u.mgd.tdls_wider_bw_prohibited && 1769 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1770 params->ext_capab_len >= 8 && 1771 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1772 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1773 1774 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1775 sta->sta.uapsd_queues = params->uapsd_queues; 1776 sta->sta.max_sp = params->max_sp; 1777 } 1778 1779 /* The sender might not have sent the last bit, consider it to be 0 */ 1780 if (params->ext_capab_len >= 8) { 1781 u8 val = (params->ext_capab[7] & 1782 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1783 1784 /* we did get all the bits, take the MSB as well */ 1785 if (params->ext_capab_len >= 9) { 1786 u8 val_msb = params->ext_capab[8] & 1787 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1788 val_msb <<= 1; 1789 val |= val_msb; 1790 } 1791 1792 switch (val) { 1793 case 1: 1794 sta->sta.max_amsdu_subframes = 32; 1795 break; 1796 case 2: 1797 sta->sta.max_amsdu_subframes = 16; 1798 break; 1799 case 3: 1800 sta->sta.max_amsdu_subframes = 8; 1801 break; 1802 default: 1803 sta->sta.max_amsdu_subframes = 0; 1804 } 1805 } 1806 1807 /* 1808 * cfg80211 validates this (1-2007) and allows setting the AID 1809 * only when creating a new station entry 1810 */ 1811 if (params->aid) 1812 sta->sta.aid = params->aid; 1813 1814 /* 1815 * Some of the following updates would be racy if called on an 1816 * existing station, via ieee80211_change_station(). However, 1817 * all such changes are rejected by cfg80211 except for updates 1818 * changing the supported rates on an existing but not yet used 1819 * TDLS peer. 1820 */ 1821 1822 if (params->listen_interval >= 0) 1823 sta->listen_interval = params->listen_interval; 1824 1825 ret = sta_link_apply_parameters(local, sta, ¶ms->link_sta_params); 1826 if (ret) 1827 return ret; 1828 1829 if (params->support_p2p_ps >= 0) 1830 sta->sta.support_p2p_ps = params->support_p2p_ps; 1831 1832 if (ieee80211_vif_is_mesh(&sdata->vif)) 1833 sta_apply_mesh_params(local, sta, params); 1834 1835 if (params->airtime_weight) 1836 sta->airtime_weight = params->airtime_weight; 1837 1838 /* set the STA state after all sta info from usermode has been set */ 1839 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1840 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1841 ret = sta_apply_auth_flags(local, sta, mask, set); 1842 if (ret) 1843 return ret; 1844 } 1845 1846 return 0; 1847 } 1848 1849 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1850 const u8 *mac, 1851 struct station_parameters *params) 1852 { 1853 struct ieee80211_local *local = wiphy_priv(wiphy); 1854 struct sta_info *sta; 1855 struct ieee80211_sub_if_data *sdata; 1856 int err; 1857 1858 if (params->vlan) { 1859 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1860 1861 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1862 sdata->vif.type != NL80211_IFTYPE_AP) 1863 return -EINVAL; 1864 } else 1865 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1866 1867 if (ether_addr_equal(mac, sdata->vif.addr)) 1868 return -EINVAL; 1869 1870 if (!is_valid_ether_addr(mac)) 1871 return -EINVAL; 1872 1873 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1874 sdata->vif.type == NL80211_IFTYPE_STATION && 1875 !sdata->u.mgd.associated) 1876 return -EINVAL; 1877 1878 sta = sta_info_alloc(sdata, mac, params->link_sta_params.link_id, 1879 GFP_KERNEL); 1880 if (!sta) 1881 return -ENOMEM; 1882 1883 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1884 sta->sta.tdls = true; 1885 1886 /* Though the mutex is not needed here (since the station is not 1887 * visible yet), sta_apply_parameters (and inner functions) require 1888 * the mutex due to other paths. 1889 */ 1890 mutex_lock(&local->sta_mtx); 1891 err = sta_apply_parameters(local, sta, params); 1892 mutex_unlock(&local->sta_mtx); 1893 if (err) { 1894 sta_info_free(local, sta); 1895 return err; 1896 } 1897 1898 /* 1899 * for TDLS and for unassociated station, rate control should be 1900 * initialized only when rates are known and station is marked 1901 * authorized/associated 1902 */ 1903 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1904 test_sta_flag(sta, WLAN_STA_ASSOC)) 1905 rate_control_rate_init(sta); 1906 1907 return sta_info_insert(sta); 1908 } 1909 1910 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1911 struct station_del_parameters *params) 1912 { 1913 struct ieee80211_sub_if_data *sdata; 1914 1915 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1916 1917 if (params->mac) 1918 return sta_info_destroy_addr_bss(sdata, params->mac); 1919 1920 sta_info_flush(sdata); 1921 return 0; 1922 } 1923 1924 static int ieee80211_change_station(struct wiphy *wiphy, 1925 struct net_device *dev, const u8 *mac, 1926 struct station_parameters *params) 1927 { 1928 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1929 struct ieee80211_local *local = wiphy_priv(wiphy); 1930 struct sta_info *sta; 1931 struct ieee80211_sub_if_data *vlansdata; 1932 enum cfg80211_station_type statype; 1933 int err; 1934 1935 mutex_lock(&local->sta_mtx); 1936 1937 sta = sta_info_get_bss(sdata, mac); 1938 if (!sta) { 1939 err = -ENOENT; 1940 goto out_err; 1941 } 1942 1943 switch (sdata->vif.type) { 1944 case NL80211_IFTYPE_MESH_POINT: 1945 if (sdata->u.mesh.user_mpm) 1946 statype = CFG80211_STA_MESH_PEER_USER; 1947 else 1948 statype = CFG80211_STA_MESH_PEER_KERNEL; 1949 break; 1950 case NL80211_IFTYPE_ADHOC: 1951 statype = CFG80211_STA_IBSS; 1952 break; 1953 case NL80211_IFTYPE_STATION: 1954 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1955 statype = CFG80211_STA_AP_STA; 1956 break; 1957 } 1958 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1959 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1960 else 1961 statype = CFG80211_STA_TDLS_PEER_SETUP; 1962 break; 1963 case NL80211_IFTYPE_AP: 1964 case NL80211_IFTYPE_AP_VLAN: 1965 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1966 statype = CFG80211_STA_AP_CLIENT; 1967 else 1968 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1969 break; 1970 default: 1971 err = -EOPNOTSUPP; 1972 goto out_err; 1973 } 1974 1975 err = cfg80211_check_station_change(wiphy, params, statype); 1976 if (err) 1977 goto out_err; 1978 1979 if (params->vlan && params->vlan != sta->sdata->dev) { 1980 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1981 1982 if (params->vlan->ieee80211_ptr->use_4addr) { 1983 if (vlansdata->u.vlan.sta) { 1984 err = -EBUSY; 1985 goto out_err; 1986 } 1987 1988 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1989 __ieee80211_check_fast_rx_iface(vlansdata); 1990 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1991 } 1992 1993 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1994 sta->sdata->u.vlan.sta) { 1995 ieee80211_clear_fast_rx(sta); 1996 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1997 } 1998 1999 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2000 ieee80211_vif_dec_num_mcast(sta->sdata); 2001 2002 sta->sdata = vlansdata; 2003 ieee80211_check_fast_xmit(sta); 2004 2005 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2006 ieee80211_vif_inc_num_mcast(sta->sdata); 2007 cfg80211_send_layer2_update(sta->sdata->dev, 2008 sta->sta.addr); 2009 } 2010 } 2011 2012 /* we use sta_info_get_bss() so this might be different */ 2013 if (sdata != sta->sdata) { 2014 mutex_lock_nested(&sta->sdata->wdev.mtx, 1); 2015 err = sta_apply_parameters(local, sta, params); 2016 mutex_unlock(&sta->sdata->wdev.mtx); 2017 } else { 2018 err = sta_apply_parameters(local, sta, params); 2019 } 2020 if (err) 2021 goto out_err; 2022 2023 mutex_unlock(&local->sta_mtx); 2024 2025 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2026 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2027 ieee80211_recalc_ps(local); 2028 ieee80211_recalc_ps_vif(sdata); 2029 } 2030 2031 return 0; 2032 out_err: 2033 mutex_unlock(&local->sta_mtx); 2034 return err; 2035 } 2036 2037 #ifdef CONFIG_MAC80211_MESH 2038 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2039 const u8 *dst, const u8 *next_hop) 2040 { 2041 struct ieee80211_sub_if_data *sdata; 2042 struct mesh_path *mpath; 2043 struct sta_info *sta; 2044 2045 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2046 2047 rcu_read_lock(); 2048 sta = sta_info_get(sdata, next_hop); 2049 if (!sta) { 2050 rcu_read_unlock(); 2051 return -ENOENT; 2052 } 2053 2054 mpath = mesh_path_add(sdata, dst); 2055 if (IS_ERR(mpath)) { 2056 rcu_read_unlock(); 2057 return PTR_ERR(mpath); 2058 } 2059 2060 mesh_path_fix_nexthop(mpath, sta); 2061 2062 rcu_read_unlock(); 2063 return 0; 2064 } 2065 2066 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2067 const u8 *dst) 2068 { 2069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2070 2071 if (dst) 2072 return mesh_path_del(sdata, dst); 2073 2074 mesh_path_flush_by_iface(sdata); 2075 return 0; 2076 } 2077 2078 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2079 const u8 *dst, const u8 *next_hop) 2080 { 2081 struct ieee80211_sub_if_data *sdata; 2082 struct mesh_path *mpath; 2083 struct sta_info *sta; 2084 2085 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2086 2087 rcu_read_lock(); 2088 2089 sta = sta_info_get(sdata, next_hop); 2090 if (!sta) { 2091 rcu_read_unlock(); 2092 return -ENOENT; 2093 } 2094 2095 mpath = mesh_path_lookup(sdata, dst); 2096 if (!mpath) { 2097 rcu_read_unlock(); 2098 return -ENOENT; 2099 } 2100 2101 mesh_path_fix_nexthop(mpath, sta); 2102 2103 rcu_read_unlock(); 2104 return 0; 2105 } 2106 2107 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2108 struct mpath_info *pinfo) 2109 { 2110 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2111 2112 if (next_hop_sta) 2113 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2114 else 2115 eth_zero_addr(next_hop); 2116 2117 memset(pinfo, 0, sizeof(*pinfo)); 2118 2119 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2120 2121 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2122 MPATH_INFO_SN | 2123 MPATH_INFO_METRIC | 2124 MPATH_INFO_EXPTIME | 2125 MPATH_INFO_DISCOVERY_TIMEOUT | 2126 MPATH_INFO_DISCOVERY_RETRIES | 2127 MPATH_INFO_FLAGS | 2128 MPATH_INFO_HOP_COUNT | 2129 MPATH_INFO_PATH_CHANGE; 2130 2131 pinfo->frame_qlen = mpath->frame_queue.qlen; 2132 pinfo->sn = mpath->sn; 2133 pinfo->metric = mpath->metric; 2134 if (time_before(jiffies, mpath->exp_time)) 2135 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2136 pinfo->discovery_timeout = 2137 jiffies_to_msecs(mpath->discovery_timeout); 2138 pinfo->discovery_retries = mpath->discovery_retries; 2139 if (mpath->flags & MESH_PATH_ACTIVE) 2140 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2141 if (mpath->flags & MESH_PATH_RESOLVING) 2142 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2143 if (mpath->flags & MESH_PATH_SN_VALID) 2144 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2145 if (mpath->flags & MESH_PATH_FIXED) 2146 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2147 if (mpath->flags & MESH_PATH_RESOLVED) 2148 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2149 pinfo->hop_count = mpath->hop_count; 2150 pinfo->path_change_count = mpath->path_change_count; 2151 } 2152 2153 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2154 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2155 2156 { 2157 struct ieee80211_sub_if_data *sdata; 2158 struct mesh_path *mpath; 2159 2160 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2161 2162 rcu_read_lock(); 2163 mpath = mesh_path_lookup(sdata, dst); 2164 if (!mpath) { 2165 rcu_read_unlock(); 2166 return -ENOENT; 2167 } 2168 memcpy(dst, mpath->dst, ETH_ALEN); 2169 mpath_set_pinfo(mpath, next_hop, pinfo); 2170 rcu_read_unlock(); 2171 return 0; 2172 } 2173 2174 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2175 int idx, u8 *dst, u8 *next_hop, 2176 struct mpath_info *pinfo) 2177 { 2178 struct ieee80211_sub_if_data *sdata; 2179 struct mesh_path *mpath; 2180 2181 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2182 2183 rcu_read_lock(); 2184 mpath = mesh_path_lookup_by_idx(sdata, idx); 2185 if (!mpath) { 2186 rcu_read_unlock(); 2187 return -ENOENT; 2188 } 2189 memcpy(dst, mpath->dst, ETH_ALEN); 2190 mpath_set_pinfo(mpath, next_hop, pinfo); 2191 rcu_read_unlock(); 2192 return 0; 2193 } 2194 2195 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2196 struct mpath_info *pinfo) 2197 { 2198 memset(pinfo, 0, sizeof(*pinfo)); 2199 memcpy(mpp, mpath->mpp, ETH_ALEN); 2200 2201 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2202 } 2203 2204 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2205 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2206 2207 { 2208 struct ieee80211_sub_if_data *sdata; 2209 struct mesh_path *mpath; 2210 2211 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2212 2213 rcu_read_lock(); 2214 mpath = mpp_path_lookup(sdata, dst); 2215 if (!mpath) { 2216 rcu_read_unlock(); 2217 return -ENOENT; 2218 } 2219 memcpy(dst, mpath->dst, ETH_ALEN); 2220 mpp_set_pinfo(mpath, mpp, pinfo); 2221 rcu_read_unlock(); 2222 return 0; 2223 } 2224 2225 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2226 int idx, u8 *dst, u8 *mpp, 2227 struct mpath_info *pinfo) 2228 { 2229 struct ieee80211_sub_if_data *sdata; 2230 struct mesh_path *mpath; 2231 2232 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2233 2234 rcu_read_lock(); 2235 mpath = mpp_path_lookup_by_idx(sdata, idx); 2236 if (!mpath) { 2237 rcu_read_unlock(); 2238 return -ENOENT; 2239 } 2240 memcpy(dst, mpath->dst, ETH_ALEN); 2241 mpp_set_pinfo(mpath, mpp, pinfo); 2242 rcu_read_unlock(); 2243 return 0; 2244 } 2245 2246 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2247 struct net_device *dev, 2248 struct mesh_config *conf) 2249 { 2250 struct ieee80211_sub_if_data *sdata; 2251 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2252 2253 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2254 return 0; 2255 } 2256 2257 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2258 { 2259 return (mask >> (parm-1)) & 0x1; 2260 } 2261 2262 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2263 const struct mesh_setup *setup) 2264 { 2265 u8 *new_ie; 2266 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2267 struct ieee80211_sub_if_data, u.mesh); 2268 int i; 2269 2270 /* allocate information elements */ 2271 new_ie = NULL; 2272 2273 if (setup->ie_len) { 2274 new_ie = kmemdup(setup->ie, setup->ie_len, 2275 GFP_KERNEL); 2276 if (!new_ie) 2277 return -ENOMEM; 2278 } 2279 ifmsh->ie_len = setup->ie_len; 2280 ifmsh->ie = new_ie; 2281 2282 /* now copy the rest of the setup parameters */ 2283 ifmsh->mesh_id_len = setup->mesh_id_len; 2284 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2285 ifmsh->mesh_sp_id = setup->sync_method; 2286 ifmsh->mesh_pp_id = setup->path_sel_proto; 2287 ifmsh->mesh_pm_id = setup->path_metric; 2288 ifmsh->user_mpm = setup->user_mpm; 2289 ifmsh->mesh_auth_id = setup->auth_id; 2290 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2291 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2292 if (setup->is_authenticated) 2293 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2294 if (setup->is_secure) 2295 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2296 2297 /* mcast rate setting in Mesh Node */ 2298 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2299 sizeof(setup->mcast_rate)); 2300 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2301 2302 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2303 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2304 2305 sdata->beacon_rate_set = false; 2306 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2307 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2308 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2309 sdata->beacon_rateidx_mask[i] = 2310 setup->beacon_rate.control[i].legacy; 2311 if (sdata->beacon_rateidx_mask[i]) 2312 sdata->beacon_rate_set = true; 2313 } 2314 } 2315 2316 return 0; 2317 } 2318 2319 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2320 struct net_device *dev, u32 mask, 2321 const struct mesh_config *nconf) 2322 { 2323 struct mesh_config *conf; 2324 struct ieee80211_sub_if_data *sdata; 2325 struct ieee80211_if_mesh *ifmsh; 2326 2327 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2328 ifmsh = &sdata->u.mesh; 2329 2330 /* Set the config options which we are interested in setting */ 2331 conf = &(sdata->u.mesh.mshcfg); 2332 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2333 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2334 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2335 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2336 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2337 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2338 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2339 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2340 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2341 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2342 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2343 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2344 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2345 conf->element_ttl = nconf->element_ttl; 2346 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2347 if (ifmsh->user_mpm) 2348 return -EBUSY; 2349 conf->auto_open_plinks = nconf->auto_open_plinks; 2350 } 2351 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2352 conf->dot11MeshNbrOffsetMaxNeighbor = 2353 nconf->dot11MeshNbrOffsetMaxNeighbor; 2354 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2355 conf->dot11MeshHWMPmaxPREQretries = 2356 nconf->dot11MeshHWMPmaxPREQretries; 2357 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2358 conf->path_refresh_time = nconf->path_refresh_time; 2359 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2360 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2361 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2362 conf->dot11MeshHWMPactivePathTimeout = 2363 nconf->dot11MeshHWMPactivePathTimeout; 2364 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2365 conf->dot11MeshHWMPpreqMinInterval = 2366 nconf->dot11MeshHWMPpreqMinInterval; 2367 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2368 conf->dot11MeshHWMPperrMinInterval = 2369 nconf->dot11MeshHWMPperrMinInterval; 2370 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2371 mask)) 2372 conf->dot11MeshHWMPnetDiameterTraversalTime = 2373 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2374 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2375 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2376 ieee80211_mesh_root_setup(ifmsh); 2377 } 2378 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2379 /* our current gate announcement implementation rides on root 2380 * announcements, so require this ifmsh to also be a root node 2381 * */ 2382 if (nconf->dot11MeshGateAnnouncementProtocol && 2383 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2384 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2385 ieee80211_mesh_root_setup(ifmsh); 2386 } 2387 conf->dot11MeshGateAnnouncementProtocol = 2388 nconf->dot11MeshGateAnnouncementProtocol; 2389 } 2390 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2391 conf->dot11MeshHWMPRannInterval = 2392 nconf->dot11MeshHWMPRannInterval; 2393 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2394 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2395 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2396 /* our RSSI threshold implementation is supported only for 2397 * devices that report signal in dBm. 2398 */ 2399 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2400 return -ENOTSUPP; 2401 conf->rssi_threshold = nconf->rssi_threshold; 2402 } 2403 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2404 conf->ht_opmode = nconf->ht_opmode; 2405 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2406 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2407 BSS_CHANGED_HT); 2408 } 2409 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2410 conf->dot11MeshHWMPactivePathToRootTimeout = 2411 nconf->dot11MeshHWMPactivePathToRootTimeout; 2412 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2413 conf->dot11MeshHWMProotInterval = 2414 nconf->dot11MeshHWMProotInterval; 2415 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2416 conf->dot11MeshHWMPconfirmationInterval = 2417 nconf->dot11MeshHWMPconfirmationInterval; 2418 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2419 conf->power_mode = nconf->power_mode; 2420 ieee80211_mps_local_status_update(sdata); 2421 } 2422 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2423 conf->dot11MeshAwakeWindowDuration = 2424 nconf->dot11MeshAwakeWindowDuration; 2425 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2426 conf->plink_timeout = nconf->plink_timeout; 2427 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2428 conf->dot11MeshConnectedToMeshGate = 2429 nconf->dot11MeshConnectedToMeshGate; 2430 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2431 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2432 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2433 conf->dot11MeshConnectedToAuthServer = 2434 nconf->dot11MeshConnectedToAuthServer; 2435 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2436 return 0; 2437 } 2438 2439 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2440 const struct mesh_config *conf, 2441 const struct mesh_setup *setup) 2442 { 2443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2444 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2445 int err; 2446 2447 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2448 err = copy_mesh_setup(ifmsh, setup); 2449 if (err) 2450 return err; 2451 2452 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2453 2454 /* can mesh use other SMPS modes? */ 2455 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2456 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2457 2458 mutex_lock(&sdata->local->mtx); 2459 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2460 IEEE80211_CHANCTX_SHARED); 2461 mutex_unlock(&sdata->local->mtx); 2462 if (err) 2463 return err; 2464 2465 return ieee80211_start_mesh(sdata); 2466 } 2467 2468 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2469 { 2470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2471 2472 ieee80211_stop_mesh(sdata); 2473 mutex_lock(&sdata->local->mtx); 2474 ieee80211_link_release_channel(&sdata->deflink); 2475 kfree(sdata->u.mesh.ie); 2476 mutex_unlock(&sdata->local->mtx); 2477 2478 return 0; 2479 } 2480 #endif 2481 2482 static int ieee80211_change_bss(struct wiphy *wiphy, 2483 struct net_device *dev, 2484 struct bss_parameters *params) 2485 { 2486 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2487 struct ieee80211_supported_band *sband; 2488 u32 changed = 0; 2489 2490 if (!sdata_dereference(sdata->deflink.u.ap.beacon, sdata)) 2491 return -ENOENT; 2492 2493 sband = ieee80211_get_sband(sdata); 2494 if (!sband) 2495 return -EINVAL; 2496 2497 if (params->use_cts_prot >= 0) { 2498 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2499 changed |= BSS_CHANGED_ERP_CTS_PROT; 2500 } 2501 if (params->use_short_preamble >= 0) { 2502 sdata->vif.bss_conf.use_short_preamble = 2503 params->use_short_preamble; 2504 changed |= BSS_CHANGED_ERP_PREAMBLE; 2505 } 2506 2507 if (!sdata->vif.bss_conf.use_short_slot && 2508 (sband->band == NL80211_BAND_5GHZ || 2509 sband->band == NL80211_BAND_6GHZ)) { 2510 sdata->vif.bss_conf.use_short_slot = true; 2511 changed |= BSS_CHANGED_ERP_SLOT; 2512 } 2513 2514 if (params->use_short_slot_time >= 0) { 2515 sdata->vif.bss_conf.use_short_slot = 2516 params->use_short_slot_time; 2517 changed |= BSS_CHANGED_ERP_SLOT; 2518 } 2519 2520 if (params->basic_rates) { 2521 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2522 wiphy->bands[sband->band], 2523 params->basic_rates, 2524 params->basic_rates_len, 2525 &sdata->vif.bss_conf.basic_rates); 2526 changed |= BSS_CHANGED_BASIC_RATES; 2527 ieee80211_check_rate_mask(sdata); 2528 } 2529 2530 if (params->ap_isolate >= 0) { 2531 if (params->ap_isolate) 2532 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2533 else 2534 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2535 ieee80211_check_fast_rx_iface(sdata); 2536 } 2537 2538 if (params->ht_opmode >= 0) { 2539 sdata->vif.bss_conf.ht_operation_mode = 2540 (u16) params->ht_opmode; 2541 changed |= BSS_CHANGED_HT; 2542 } 2543 2544 if (params->p2p_ctwindow >= 0) { 2545 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2546 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2547 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2548 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2549 changed |= BSS_CHANGED_P2P_PS; 2550 } 2551 2552 if (params->p2p_opp_ps > 0) { 2553 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2554 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2555 changed |= BSS_CHANGED_P2P_PS; 2556 } else if (params->p2p_opp_ps == 0) { 2557 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2558 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2559 changed |= BSS_CHANGED_P2P_PS; 2560 } 2561 2562 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 2563 2564 return 0; 2565 } 2566 2567 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2568 struct net_device *dev, 2569 struct ieee80211_txq_params *params) 2570 { 2571 struct ieee80211_local *local = wiphy_priv(wiphy); 2572 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2573 struct ieee80211_link_data *link = &sdata->deflink; 2574 struct ieee80211_tx_queue_params p; 2575 2576 if (!local->ops->conf_tx) 2577 return -EOPNOTSUPP; 2578 2579 if (local->hw.queues < IEEE80211_NUM_ACS) 2580 return -EOPNOTSUPP; 2581 2582 memset(&p, 0, sizeof(p)); 2583 p.aifs = params->aifs; 2584 p.cw_max = params->cwmax; 2585 p.cw_min = params->cwmin; 2586 p.txop = params->txop; 2587 2588 /* 2589 * Setting tx queue params disables u-apsd because it's only 2590 * called in master mode. 2591 */ 2592 p.uapsd = false; 2593 2594 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2595 2596 link->tx_conf[params->ac] = p; 2597 if (drv_conf_tx(local, link, params->ac, &p)) { 2598 wiphy_debug(local->hw.wiphy, 2599 "failed to set TX queue parameters for AC %d\n", 2600 params->ac); 2601 return -EINVAL; 2602 } 2603 2604 ieee80211_link_info_change_notify(sdata, link, 2605 BSS_CHANGED_QOS); 2606 2607 return 0; 2608 } 2609 2610 #ifdef CONFIG_PM 2611 static int ieee80211_suspend(struct wiphy *wiphy, 2612 struct cfg80211_wowlan *wowlan) 2613 { 2614 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2615 } 2616 2617 static int ieee80211_resume(struct wiphy *wiphy) 2618 { 2619 return __ieee80211_resume(wiphy_priv(wiphy)); 2620 } 2621 #else 2622 #define ieee80211_suspend NULL 2623 #define ieee80211_resume NULL 2624 #endif 2625 2626 static int ieee80211_scan(struct wiphy *wiphy, 2627 struct cfg80211_scan_request *req) 2628 { 2629 struct ieee80211_sub_if_data *sdata; 2630 2631 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2632 2633 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2634 case NL80211_IFTYPE_STATION: 2635 case NL80211_IFTYPE_ADHOC: 2636 case NL80211_IFTYPE_MESH_POINT: 2637 case NL80211_IFTYPE_P2P_CLIENT: 2638 case NL80211_IFTYPE_P2P_DEVICE: 2639 break; 2640 case NL80211_IFTYPE_P2P_GO: 2641 if (sdata->local->ops->hw_scan) 2642 break; 2643 /* 2644 * FIXME: implement NoA while scanning in software, 2645 * for now fall through to allow scanning only when 2646 * beaconing hasn't been configured yet 2647 */ 2648 fallthrough; 2649 case NL80211_IFTYPE_AP: 2650 /* 2651 * If the scan has been forced (and the driver supports 2652 * forcing), don't care about being beaconing already. 2653 * This will create problems to the attached stations (e.g. all 2654 * the frames sent while scanning on other channel will be 2655 * lost) 2656 */ 2657 if (sdata->deflink.u.ap.beacon && 2658 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2659 !(req->flags & NL80211_SCAN_FLAG_AP))) 2660 return -EOPNOTSUPP; 2661 break; 2662 case NL80211_IFTYPE_NAN: 2663 default: 2664 return -EOPNOTSUPP; 2665 } 2666 2667 return ieee80211_request_scan(sdata, req); 2668 } 2669 2670 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2671 { 2672 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2673 } 2674 2675 static int 2676 ieee80211_sched_scan_start(struct wiphy *wiphy, 2677 struct net_device *dev, 2678 struct cfg80211_sched_scan_request *req) 2679 { 2680 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2681 2682 if (!sdata->local->ops->sched_scan_start) 2683 return -EOPNOTSUPP; 2684 2685 return ieee80211_request_sched_scan_start(sdata, req); 2686 } 2687 2688 static int 2689 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2690 u64 reqid) 2691 { 2692 struct ieee80211_local *local = wiphy_priv(wiphy); 2693 2694 if (!local->ops->sched_scan_stop) 2695 return -EOPNOTSUPP; 2696 2697 return ieee80211_request_sched_scan_stop(local); 2698 } 2699 2700 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2701 struct cfg80211_auth_request *req) 2702 { 2703 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2704 } 2705 2706 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2707 struct cfg80211_assoc_request *req) 2708 { 2709 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2710 } 2711 2712 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2713 struct cfg80211_deauth_request *req) 2714 { 2715 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2716 } 2717 2718 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2719 struct cfg80211_disassoc_request *req) 2720 { 2721 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2722 } 2723 2724 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2725 struct cfg80211_ibss_params *params) 2726 { 2727 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2728 } 2729 2730 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2731 { 2732 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2733 } 2734 2735 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2736 struct ocb_setup *setup) 2737 { 2738 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2739 } 2740 2741 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2742 { 2743 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2744 } 2745 2746 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2747 int rate[NUM_NL80211_BANDS]) 2748 { 2749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2750 2751 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2752 sizeof(int) * NUM_NL80211_BANDS); 2753 2754 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2755 BSS_CHANGED_MCAST_RATE); 2756 2757 return 0; 2758 } 2759 2760 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2761 { 2762 struct ieee80211_local *local = wiphy_priv(wiphy); 2763 int err; 2764 2765 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2766 ieee80211_check_fast_xmit_all(local); 2767 2768 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2769 2770 if (err) { 2771 ieee80211_check_fast_xmit_all(local); 2772 return err; 2773 } 2774 } 2775 2776 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2777 (changed & WIPHY_PARAM_DYN_ACK)) { 2778 s16 coverage_class; 2779 2780 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2781 wiphy->coverage_class : -1; 2782 err = drv_set_coverage_class(local, coverage_class); 2783 2784 if (err) 2785 return err; 2786 } 2787 2788 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2789 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2790 2791 if (err) 2792 return err; 2793 } 2794 2795 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2796 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2797 return -EINVAL; 2798 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2799 } 2800 if (changed & WIPHY_PARAM_RETRY_LONG) { 2801 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2802 return -EINVAL; 2803 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2804 } 2805 if (changed & 2806 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2807 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2808 2809 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2810 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2811 WIPHY_PARAM_TXQ_QUANTUM)) 2812 ieee80211_txq_set_params(local); 2813 2814 return 0; 2815 } 2816 2817 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2818 struct wireless_dev *wdev, 2819 enum nl80211_tx_power_setting type, int mbm) 2820 { 2821 struct ieee80211_local *local = wiphy_priv(wiphy); 2822 struct ieee80211_sub_if_data *sdata; 2823 enum nl80211_tx_power_setting txp_type = type; 2824 bool update_txp_type = false; 2825 bool has_monitor = false; 2826 2827 if (wdev) { 2828 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2829 2830 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2831 sdata = wiphy_dereference(local->hw.wiphy, 2832 local->monitor_sdata); 2833 if (!sdata) 2834 return -EOPNOTSUPP; 2835 } 2836 2837 switch (type) { 2838 case NL80211_TX_POWER_AUTOMATIC: 2839 sdata->deflink.user_power_level = 2840 IEEE80211_UNSET_POWER_LEVEL; 2841 txp_type = NL80211_TX_POWER_LIMITED; 2842 break; 2843 case NL80211_TX_POWER_LIMITED: 2844 case NL80211_TX_POWER_FIXED: 2845 if (mbm < 0 || (mbm % 100)) 2846 return -EOPNOTSUPP; 2847 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 2848 break; 2849 } 2850 2851 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2852 update_txp_type = true; 2853 sdata->vif.bss_conf.txpower_type = txp_type; 2854 } 2855 2856 ieee80211_recalc_txpower(sdata, update_txp_type); 2857 2858 return 0; 2859 } 2860 2861 switch (type) { 2862 case NL80211_TX_POWER_AUTOMATIC: 2863 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2864 txp_type = NL80211_TX_POWER_LIMITED; 2865 break; 2866 case NL80211_TX_POWER_LIMITED: 2867 case NL80211_TX_POWER_FIXED: 2868 if (mbm < 0 || (mbm % 100)) 2869 return -EOPNOTSUPP; 2870 local->user_power_level = MBM_TO_DBM(mbm); 2871 break; 2872 } 2873 2874 mutex_lock(&local->iflist_mtx); 2875 list_for_each_entry(sdata, &local->interfaces, list) { 2876 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2877 has_monitor = true; 2878 continue; 2879 } 2880 sdata->deflink.user_power_level = local->user_power_level; 2881 if (txp_type != sdata->vif.bss_conf.txpower_type) 2882 update_txp_type = true; 2883 sdata->vif.bss_conf.txpower_type = txp_type; 2884 } 2885 list_for_each_entry(sdata, &local->interfaces, list) { 2886 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2887 continue; 2888 ieee80211_recalc_txpower(sdata, update_txp_type); 2889 } 2890 mutex_unlock(&local->iflist_mtx); 2891 2892 if (has_monitor) { 2893 sdata = wiphy_dereference(local->hw.wiphy, 2894 local->monitor_sdata); 2895 if (sdata) { 2896 sdata->deflink.user_power_level = local->user_power_level; 2897 if (txp_type != sdata->vif.bss_conf.txpower_type) 2898 update_txp_type = true; 2899 sdata->vif.bss_conf.txpower_type = txp_type; 2900 2901 ieee80211_recalc_txpower(sdata, update_txp_type); 2902 } 2903 } 2904 2905 return 0; 2906 } 2907 2908 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2909 struct wireless_dev *wdev, 2910 int *dbm) 2911 { 2912 struct ieee80211_local *local = wiphy_priv(wiphy); 2913 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2914 2915 if (local->ops->get_txpower) 2916 return drv_get_txpower(local, sdata, dbm); 2917 2918 if (!local->use_chanctx) 2919 *dbm = local->hw.conf.power_level; 2920 else 2921 *dbm = sdata->vif.bss_conf.txpower; 2922 2923 return 0; 2924 } 2925 2926 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2927 { 2928 struct ieee80211_local *local = wiphy_priv(wiphy); 2929 2930 drv_rfkill_poll(local); 2931 } 2932 2933 #ifdef CONFIG_NL80211_TESTMODE 2934 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2935 struct wireless_dev *wdev, 2936 void *data, int len) 2937 { 2938 struct ieee80211_local *local = wiphy_priv(wiphy); 2939 struct ieee80211_vif *vif = NULL; 2940 2941 if (!local->ops->testmode_cmd) 2942 return -EOPNOTSUPP; 2943 2944 if (wdev) { 2945 struct ieee80211_sub_if_data *sdata; 2946 2947 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2948 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2949 vif = &sdata->vif; 2950 } 2951 2952 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2953 } 2954 2955 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2956 struct sk_buff *skb, 2957 struct netlink_callback *cb, 2958 void *data, int len) 2959 { 2960 struct ieee80211_local *local = wiphy_priv(wiphy); 2961 2962 if (!local->ops->testmode_dump) 2963 return -EOPNOTSUPP; 2964 2965 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2966 } 2967 #endif 2968 2969 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2970 struct ieee80211_link_data *link, 2971 enum ieee80211_smps_mode smps_mode) 2972 { 2973 const u8 *ap; 2974 enum ieee80211_smps_mode old_req; 2975 int err; 2976 struct sta_info *sta; 2977 bool tdls_peer_found = false; 2978 2979 lockdep_assert_held(&sdata->wdev.mtx); 2980 2981 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2982 return -EINVAL; 2983 2984 old_req = link->u.mgd.req_smps; 2985 link->u.mgd.req_smps = smps_mode; 2986 2987 if (old_req == smps_mode && 2988 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2989 return 0; 2990 2991 /* 2992 * If not associated, or current association is not an HT 2993 * association, there's no need to do anything, just store 2994 * the new value until we associate. 2995 */ 2996 if (!sdata->u.mgd.associated || 2997 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2998 return 0; 2999 3000 ap = link->u.mgd.bssid; 3001 3002 rcu_read_lock(); 3003 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3004 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3005 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3006 continue; 3007 3008 tdls_peer_found = true; 3009 break; 3010 } 3011 rcu_read_unlock(); 3012 3013 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3014 if (tdls_peer_found || !sdata->u.mgd.powersave) 3015 smps_mode = IEEE80211_SMPS_OFF; 3016 else 3017 smps_mode = IEEE80211_SMPS_DYNAMIC; 3018 } 3019 3020 /* send SM PS frame to AP */ 3021 err = ieee80211_send_smps_action(sdata, smps_mode, 3022 ap, ap); 3023 if (err) 3024 link->u.mgd.req_smps = old_req; 3025 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3026 ieee80211_teardown_tdls_peers(sdata); 3027 3028 return err; 3029 } 3030 3031 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3032 bool enabled, int timeout) 3033 { 3034 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3035 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3036 unsigned int link_id; 3037 3038 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3039 return -EOPNOTSUPP; 3040 3041 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3042 return -EOPNOTSUPP; 3043 3044 if (enabled == sdata->u.mgd.powersave && 3045 timeout == local->dynamic_ps_forced_timeout) 3046 return 0; 3047 3048 sdata->u.mgd.powersave = enabled; 3049 local->dynamic_ps_forced_timeout = timeout; 3050 3051 /* no change, but if automatic follow powersave */ 3052 sdata_lock(sdata); 3053 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3054 struct ieee80211_link_data *link; 3055 3056 link = sdata_dereference(sdata->link[link_id], sdata); 3057 3058 if (!link) 3059 continue; 3060 __ieee80211_request_smps_mgd(sdata, link, 3061 link->u.mgd.req_smps); 3062 } 3063 sdata_unlock(sdata); 3064 3065 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3066 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3067 3068 ieee80211_recalc_ps(local); 3069 ieee80211_recalc_ps_vif(sdata); 3070 ieee80211_check_fast_rx_iface(sdata); 3071 3072 return 0; 3073 } 3074 3075 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3076 struct net_device *dev, 3077 s32 rssi_thold, u32 rssi_hyst) 3078 { 3079 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3080 struct ieee80211_vif *vif = &sdata->vif; 3081 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3082 3083 if (rssi_thold == bss_conf->cqm_rssi_thold && 3084 rssi_hyst == bss_conf->cqm_rssi_hyst) 3085 return 0; 3086 3087 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3088 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3089 return -EOPNOTSUPP; 3090 3091 bss_conf->cqm_rssi_thold = rssi_thold; 3092 bss_conf->cqm_rssi_hyst = rssi_hyst; 3093 bss_conf->cqm_rssi_low = 0; 3094 bss_conf->cqm_rssi_high = 0; 3095 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3096 3097 /* tell the driver upon association, unless already associated */ 3098 if (sdata->u.mgd.associated && 3099 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3100 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3101 BSS_CHANGED_CQM); 3102 3103 return 0; 3104 } 3105 3106 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3107 struct net_device *dev, 3108 s32 rssi_low, s32 rssi_high) 3109 { 3110 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3111 struct ieee80211_vif *vif = &sdata->vif; 3112 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3113 3114 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3115 return -EOPNOTSUPP; 3116 3117 bss_conf->cqm_rssi_low = rssi_low; 3118 bss_conf->cqm_rssi_high = rssi_high; 3119 bss_conf->cqm_rssi_thold = 0; 3120 bss_conf->cqm_rssi_hyst = 0; 3121 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3122 3123 /* tell the driver upon association, unless already associated */ 3124 if (sdata->u.mgd.associated && 3125 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3126 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3127 BSS_CHANGED_CQM); 3128 3129 return 0; 3130 } 3131 3132 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3133 struct net_device *dev, 3134 unsigned int link_id, 3135 const u8 *addr, 3136 const struct cfg80211_bitrate_mask *mask) 3137 { 3138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3139 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3140 int i, ret; 3141 3142 if (!ieee80211_sdata_running(sdata)) 3143 return -ENETDOWN; 3144 3145 /* 3146 * If active validate the setting and reject it if it doesn't leave 3147 * at least one basic rate usable, since we really have to be able 3148 * to send something, and if we're an AP we have to be able to do 3149 * so at a basic rate so that all clients can receive it. 3150 */ 3151 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3152 sdata->vif.bss_conf.chandef.chan) { 3153 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3154 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3155 3156 if (!(mask->control[band].legacy & basic_rates)) 3157 return -EINVAL; 3158 } 3159 3160 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3161 ret = drv_set_bitrate_mask(local, sdata, mask); 3162 if (ret) 3163 return ret; 3164 } 3165 3166 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3167 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3168 int j; 3169 3170 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3171 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3172 sizeof(mask->control[i].ht_mcs)); 3173 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3174 mask->control[i].vht_mcs, 3175 sizeof(mask->control[i].vht_mcs)); 3176 3177 sdata->rc_has_mcs_mask[i] = false; 3178 sdata->rc_has_vht_mcs_mask[i] = false; 3179 if (!sband) 3180 continue; 3181 3182 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3183 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3184 sdata->rc_has_mcs_mask[i] = true; 3185 break; 3186 } 3187 } 3188 3189 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3190 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3191 sdata->rc_has_vht_mcs_mask[i] = true; 3192 break; 3193 } 3194 } 3195 } 3196 3197 return 0; 3198 } 3199 3200 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3201 struct net_device *dev, 3202 struct cfg80211_chan_def *chandef, 3203 u32 cac_time_ms) 3204 { 3205 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3206 struct ieee80211_local *local = sdata->local; 3207 int err; 3208 3209 mutex_lock(&local->mtx); 3210 if (!list_empty(&local->roc_list) || local->scanning) { 3211 err = -EBUSY; 3212 goto out_unlock; 3213 } 3214 3215 /* whatever, but channel contexts should not complain about that one */ 3216 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3217 sdata->deflink.needed_rx_chains = local->rx_chains; 3218 3219 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3220 IEEE80211_CHANCTX_SHARED); 3221 if (err) 3222 goto out_unlock; 3223 3224 ieee80211_queue_delayed_work(&sdata->local->hw, 3225 &sdata->deflink.dfs_cac_timer_work, 3226 msecs_to_jiffies(cac_time_ms)); 3227 3228 out_unlock: 3229 mutex_unlock(&local->mtx); 3230 return err; 3231 } 3232 3233 static void ieee80211_end_cac(struct wiphy *wiphy, 3234 struct net_device *dev) 3235 { 3236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3237 struct ieee80211_local *local = sdata->local; 3238 3239 mutex_lock(&local->mtx); 3240 list_for_each_entry(sdata, &local->interfaces, list) { 3241 /* it might be waiting for the local->mtx, but then 3242 * by the time it gets it, sdata->wdev.cac_started 3243 * will no longer be true 3244 */ 3245 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); 3246 3247 if (sdata->wdev.cac_started) { 3248 ieee80211_link_release_channel(&sdata->deflink); 3249 sdata->wdev.cac_started = false; 3250 } 3251 } 3252 mutex_unlock(&local->mtx); 3253 } 3254 3255 static struct cfg80211_beacon_data * 3256 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3257 { 3258 struct cfg80211_beacon_data *new_beacon; 3259 u8 *pos; 3260 int len; 3261 3262 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3263 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3264 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3265 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3266 3267 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3268 if (!new_beacon) 3269 return NULL; 3270 3271 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3272 new_beacon->mbssid_ies = 3273 kzalloc(struct_size(new_beacon->mbssid_ies, 3274 elem, beacon->mbssid_ies->cnt), 3275 GFP_KERNEL); 3276 if (!new_beacon->mbssid_ies) { 3277 kfree(new_beacon); 3278 return NULL; 3279 } 3280 } 3281 3282 pos = (u8 *)(new_beacon + 1); 3283 if (beacon->head_len) { 3284 new_beacon->head_len = beacon->head_len; 3285 new_beacon->head = pos; 3286 memcpy(pos, beacon->head, beacon->head_len); 3287 pos += beacon->head_len; 3288 } 3289 if (beacon->tail_len) { 3290 new_beacon->tail_len = beacon->tail_len; 3291 new_beacon->tail = pos; 3292 memcpy(pos, beacon->tail, beacon->tail_len); 3293 pos += beacon->tail_len; 3294 } 3295 if (beacon->beacon_ies_len) { 3296 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3297 new_beacon->beacon_ies = pos; 3298 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3299 pos += beacon->beacon_ies_len; 3300 } 3301 if (beacon->proberesp_ies_len) { 3302 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3303 new_beacon->proberesp_ies = pos; 3304 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3305 pos += beacon->proberesp_ies_len; 3306 } 3307 if (beacon->assocresp_ies_len) { 3308 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3309 new_beacon->assocresp_ies = pos; 3310 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3311 pos += beacon->assocresp_ies_len; 3312 } 3313 if (beacon->probe_resp_len) { 3314 new_beacon->probe_resp_len = beacon->probe_resp_len; 3315 new_beacon->probe_resp = pos; 3316 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3317 pos += beacon->probe_resp_len; 3318 } 3319 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3320 pos += ieee80211_copy_mbssid_beacon(pos, 3321 new_beacon->mbssid_ies, 3322 beacon->mbssid_ies); 3323 3324 /* might copy -1, meaning no changes requested */ 3325 new_beacon->ftm_responder = beacon->ftm_responder; 3326 if (beacon->lci) { 3327 new_beacon->lci_len = beacon->lci_len; 3328 new_beacon->lci = pos; 3329 memcpy(pos, beacon->lci, beacon->lci_len); 3330 pos += beacon->lci_len; 3331 } 3332 if (beacon->civicloc) { 3333 new_beacon->civicloc_len = beacon->civicloc_len; 3334 new_beacon->civicloc = pos; 3335 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3336 pos += beacon->civicloc_len; 3337 } 3338 3339 return new_beacon; 3340 } 3341 3342 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3343 { 3344 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3345 struct ieee80211_local *local = sdata->local; 3346 3347 rcu_read_lock(); 3348 3349 if (vif->mbssid_tx_vif == vif) { 3350 /* Trigger ieee80211_csa_finish() on the non-transmitting 3351 * interfaces when channel switch is received on 3352 * transmitting interface 3353 */ 3354 struct ieee80211_sub_if_data *iter; 3355 3356 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3357 if (!ieee80211_sdata_running(iter)) 3358 continue; 3359 3360 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3361 continue; 3362 3363 ieee80211_queue_work(&iter->local->hw, 3364 &iter->deflink.csa_finalize_work); 3365 } 3366 } 3367 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work); 3368 3369 rcu_read_unlock(); 3370 } 3371 EXPORT_SYMBOL(ieee80211_csa_finish); 3372 3373 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3374 { 3375 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3376 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3377 struct ieee80211_local *local = sdata->local; 3378 3379 sdata->deflink.csa_block_tx = block_tx; 3380 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3381 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3382 } 3383 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3384 3385 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3386 u32 *changed) 3387 { 3388 int err; 3389 3390 switch (sdata->vif.type) { 3391 case NL80211_IFTYPE_AP: 3392 if (!sdata->deflink.u.ap.next_beacon) 3393 return -EINVAL; 3394 3395 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3396 sdata->deflink.u.ap.next_beacon, 3397 NULL, NULL); 3398 ieee80211_free_next_beacon(&sdata->deflink); 3399 3400 if (err < 0) 3401 return err; 3402 *changed |= err; 3403 break; 3404 case NL80211_IFTYPE_ADHOC: 3405 err = ieee80211_ibss_finish_csa(sdata); 3406 if (err < 0) 3407 return err; 3408 *changed |= err; 3409 break; 3410 #ifdef CONFIG_MAC80211_MESH 3411 case NL80211_IFTYPE_MESH_POINT: 3412 err = ieee80211_mesh_finish_csa(sdata); 3413 if (err < 0) 3414 return err; 3415 *changed |= err; 3416 break; 3417 #endif 3418 default: 3419 WARN_ON(1); 3420 return -EINVAL; 3421 } 3422 3423 return 0; 3424 } 3425 3426 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3427 { 3428 struct ieee80211_local *local = sdata->local; 3429 u32 changed = 0; 3430 int err; 3431 3432 sdata_assert_lock(sdata); 3433 lockdep_assert_held(&local->mtx); 3434 lockdep_assert_held(&local->chanctx_mtx); 3435 3436 /* 3437 * using reservation isn't immediate as it may be deferred until later 3438 * with multi-vif. once reservation is complete it will re-schedule the 3439 * work with no reserved_chanctx so verify chandef to check if it 3440 * completed successfully 3441 */ 3442 3443 if (sdata->deflink.reserved_chanctx) { 3444 /* 3445 * with multi-vif csa driver may call ieee80211_csa_finish() 3446 * many times while waiting for other interfaces to use their 3447 * reservations 3448 */ 3449 if (sdata->deflink.reserved_ready) 3450 return 0; 3451 3452 return ieee80211_link_use_reserved_context(&sdata->deflink); 3453 } 3454 3455 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3456 &sdata->deflink.csa_chandef)) 3457 return -EINVAL; 3458 3459 sdata->vif.bss_conf.csa_active = false; 3460 3461 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3462 if (err) 3463 return err; 3464 3465 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3466 3467 if (sdata->deflink.csa_block_tx) { 3468 ieee80211_wake_vif_queues(local, sdata, 3469 IEEE80211_QUEUE_STOP_REASON_CSA); 3470 sdata->deflink.csa_block_tx = false; 3471 } 3472 3473 err = drv_post_channel_switch(sdata); 3474 if (err) 3475 return err; 3476 3477 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0); 3478 3479 return 0; 3480 } 3481 3482 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3483 { 3484 if (__ieee80211_csa_finalize(sdata)) { 3485 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3486 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3487 GFP_KERNEL); 3488 } 3489 } 3490 3491 void ieee80211_csa_finalize_work(struct work_struct *work) 3492 { 3493 struct ieee80211_sub_if_data *sdata = 3494 container_of(work, struct ieee80211_sub_if_data, 3495 deflink.csa_finalize_work); 3496 struct ieee80211_local *local = sdata->local; 3497 3498 sdata_lock(sdata); 3499 mutex_lock(&local->mtx); 3500 mutex_lock(&local->chanctx_mtx); 3501 3502 /* AP might have been stopped while waiting for the lock. */ 3503 if (!sdata->vif.bss_conf.csa_active) 3504 goto unlock; 3505 3506 if (!ieee80211_sdata_running(sdata)) 3507 goto unlock; 3508 3509 ieee80211_csa_finalize(sdata); 3510 3511 unlock: 3512 mutex_unlock(&local->chanctx_mtx); 3513 mutex_unlock(&local->mtx); 3514 sdata_unlock(sdata); 3515 } 3516 3517 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3518 struct cfg80211_csa_settings *params, 3519 u32 *changed) 3520 { 3521 struct ieee80211_csa_settings csa = {}; 3522 int err; 3523 3524 switch (sdata->vif.type) { 3525 case NL80211_IFTYPE_AP: 3526 sdata->deflink.u.ap.next_beacon = 3527 cfg80211_beacon_dup(¶ms->beacon_after); 3528 if (!sdata->deflink.u.ap.next_beacon) 3529 return -ENOMEM; 3530 3531 /* 3532 * With a count of 0, we don't have to wait for any 3533 * TBTT before switching, so complete the CSA 3534 * immediately. In theory, with a count == 1 we 3535 * should delay the switch until just before the next 3536 * TBTT, but that would complicate things so we switch 3537 * immediately too. If we would delay the switch 3538 * until the next TBTT, we would have to set the probe 3539 * response here. 3540 * 3541 * TODO: A channel switch with count <= 1 without 3542 * sending a CSA action frame is kind of useless, 3543 * because the clients won't know we're changing 3544 * channels. The action frame must be implemented 3545 * either here or in the userspace. 3546 */ 3547 if (params->count <= 1) 3548 break; 3549 3550 if ((params->n_counter_offsets_beacon > 3551 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3552 (params->n_counter_offsets_presp > 3553 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3554 ieee80211_free_next_beacon(&sdata->deflink); 3555 return -EINVAL; 3556 } 3557 3558 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3559 csa.counter_offsets_presp = params->counter_offsets_presp; 3560 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3561 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3562 csa.count = params->count; 3563 3564 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3565 ¶ms->beacon_csa, &csa, 3566 NULL); 3567 if (err < 0) { 3568 ieee80211_free_next_beacon(&sdata->deflink); 3569 return err; 3570 } 3571 *changed |= err; 3572 3573 break; 3574 case NL80211_IFTYPE_ADHOC: 3575 if (!sdata->vif.cfg.ibss_joined) 3576 return -EINVAL; 3577 3578 if (params->chandef.width != sdata->u.ibss.chandef.width) 3579 return -EINVAL; 3580 3581 switch (params->chandef.width) { 3582 case NL80211_CHAN_WIDTH_40: 3583 if (cfg80211_get_chandef_type(¶ms->chandef) != 3584 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3585 return -EINVAL; 3586 break; 3587 case NL80211_CHAN_WIDTH_5: 3588 case NL80211_CHAN_WIDTH_10: 3589 case NL80211_CHAN_WIDTH_20_NOHT: 3590 case NL80211_CHAN_WIDTH_20: 3591 break; 3592 default: 3593 return -EINVAL; 3594 } 3595 3596 /* changes into another band are not supported */ 3597 if (sdata->u.ibss.chandef.chan->band != 3598 params->chandef.chan->band) 3599 return -EINVAL; 3600 3601 /* see comments in the NL80211_IFTYPE_AP block */ 3602 if (params->count > 1) { 3603 err = ieee80211_ibss_csa_beacon(sdata, params); 3604 if (err < 0) 3605 return err; 3606 *changed |= err; 3607 } 3608 3609 ieee80211_send_action_csa(sdata, params); 3610 3611 break; 3612 #ifdef CONFIG_MAC80211_MESH 3613 case NL80211_IFTYPE_MESH_POINT: { 3614 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3615 3616 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3617 return -EINVAL; 3618 3619 /* changes into another band are not supported */ 3620 if (sdata->vif.bss_conf.chandef.chan->band != 3621 params->chandef.chan->band) 3622 return -EINVAL; 3623 3624 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3625 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3626 if (!ifmsh->pre_value) 3627 ifmsh->pre_value = 1; 3628 else 3629 ifmsh->pre_value++; 3630 } 3631 3632 /* see comments in the NL80211_IFTYPE_AP block */ 3633 if (params->count > 1) { 3634 err = ieee80211_mesh_csa_beacon(sdata, params); 3635 if (err < 0) { 3636 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3637 return err; 3638 } 3639 *changed |= err; 3640 } 3641 3642 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3643 ieee80211_send_action_csa(sdata, params); 3644 3645 break; 3646 } 3647 #endif 3648 default: 3649 return -EOPNOTSUPP; 3650 } 3651 3652 return 0; 3653 } 3654 3655 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3656 { 3657 sdata->vif.bss_conf.color_change_active = false; 3658 3659 ieee80211_free_next_beacon(&sdata->deflink); 3660 3661 cfg80211_color_change_aborted_notify(sdata->dev); 3662 } 3663 3664 static int 3665 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3666 struct cfg80211_csa_settings *params) 3667 { 3668 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3669 struct ieee80211_local *local = sdata->local; 3670 struct ieee80211_channel_switch ch_switch; 3671 struct ieee80211_chanctx_conf *conf; 3672 struct ieee80211_chanctx *chanctx; 3673 u32 changed = 0; 3674 int err; 3675 3676 sdata_assert_lock(sdata); 3677 lockdep_assert_held(&local->mtx); 3678 3679 if (!list_empty(&local->roc_list) || local->scanning) 3680 return -EBUSY; 3681 3682 if (sdata->wdev.cac_started) 3683 return -EBUSY; 3684 3685 if (cfg80211_chandef_identical(¶ms->chandef, 3686 &sdata->vif.bss_conf.chandef)) 3687 return -EINVAL; 3688 3689 /* don't allow another channel switch if one is already active. */ 3690 if (sdata->vif.bss_conf.csa_active) 3691 return -EBUSY; 3692 3693 mutex_lock(&local->chanctx_mtx); 3694 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3695 lockdep_is_held(&local->chanctx_mtx)); 3696 if (!conf) { 3697 err = -EBUSY; 3698 goto out; 3699 } 3700 3701 if (params->chandef.chan->freq_offset) { 3702 /* this may work, but is untested */ 3703 err = -EOPNOTSUPP; 3704 goto out; 3705 } 3706 3707 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3708 3709 ch_switch.timestamp = 0; 3710 ch_switch.device_timestamp = 0; 3711 ch_switch.block_tx = params->block_tx; 3712 ch_switch.chandef = params->chandef; 3713 ch_switch.count = params->count; 3714 3715 err = drv_pre_channel_switch(sdata, &ch_switch); 3716 if (err) 3717 goto out; 3718 3719 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3720 chanctx->mode, 3721 params->radar_required); 3722 if (err) 3723 goto out; 3724 3725 /* if reservation is invalid then this will fail */ 3726 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3727 if (err) { 3728 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3729 goto out; 3730 } 3731 3732 /* if there is a color change in progress, abort it */ 3733 if (sdata->vif.bss_conf.color_change_active) 3734 ieee80211_color_change_abort(sdata); 3735 3736 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3737 if (err) { 3738 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3739 goto out; 3740 } 3741 3742 sdata->deflink.csa_chandef = params->chandef; 3743 sdata->deflink.csa_block_tx = params->block_tx; 3744 sdata->vif.bss_conf.csa_active = true; 3745 3746 if (sdata->deflink.csa_block_tx) 3747 ieee80211_stop_vif_queues(local, sdata, 3748 IEEE80211_QUEUE_STOP_REASON_CSA); 3749 3750 cfg80211_ch_switch_started_notify(sdata->dev, 3751 &sdata->deflink.csa_chandef, 3752 params->count, params->block_tx); 3753 3754 if (changed) { 3755 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3756 changed); 3757 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3758 } else { 3759 /* if the beacon didn't change, we can finalize immediately */ 3760 ieee80211_csa_finalize(sdata); 3761 } 3762 3763 out: 3764 mutex_unlock(&local->chanctx_mtx); 3765 return err; 3766 } 3767 3768 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3769 struct cfg80211_csa_settings *params) 3770 { 3771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3772 struct ieee80211_local *local = sdata->local; 3773 int err; 3774 3775 mutex_lock(&local->mtx); 3776 err = __ieee80211_channel_switch(wiphy, dev, params); 3777 mutex_unlock(&local->mtx); 3778 3779 return err; 3780 } 3781 3782 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3783 { 3784 lockdep_assert_held(&local->mtx); 3785 3786 local->roc_cookie_counter++; 3787 3788 /* wow, you wrapped 64 bits ... more likely a bug */ 3789 if (WARN_ON(local->roc_cookie_counter == 0)) 3790 local->roc_cookie_counter++; 3791 3792 return local->roc_cookie_counter; 3793 } 3794 3795 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3796 u64 *cookie, gfp_t gfp) 3797 { 3798 unsigned long spin_flags; 3799 struct sk_buff *ack_skb; 3800 int id; 3801 3802 ack_skb = skb_copy(skb, gfp); 3803 if (!ack_skb) 3804 return -ENOMEM; 3805 3806 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3807 id = idr_alloc(&local->ack_status_frames, ack_skb, 3808 1, 0x2000, GFP_ATOMIC); 3809 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3810 3811 if (id < 0) { 3812 kfree_skb(ack_skb); 3813 return -ENOMEM; 3814 } 3815 3816 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3817 3818 *cookie = ieee80211_mgmt_tx_cookie(local); 3819 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3820 3821 return 0; 3822 } 3823 3824 static void 3825 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3826 struct wireless_dev *wdev, 3827 struct mgmt_frame_regs *upd) 3828 { 3829 struct ieee80211_local *local = wiphy_priv(wiphy); 3830 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3831 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3832 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3833 bool global_change, intf_change; 3834 3835 global_change = 3836 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3837 (local->rx_mcast_action_reg != 3838 !!(upd->global_mcast_stypes & action_mask)); 3839 local->probe_req_reg = upd->global_stypes & preq_mask; 3840 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3841 3842 intf_change = (sdata->vif.probe_req_reg != 3843 !!(upd->interface_stypes & preq_mask)) || 3844 (sdata->vif.rx_mcast_action_reg != 3845 !!(upd->interface_mcast_stypes & action_mask)); 3846 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3847 sdata->vif.rx_mcast_action_reg = 3848 upd->interface_mcast_stypes & action_mask; 3849 3850 if (!local->open_count) 3851 return; 3852 3853 if (intf_change && ieee80211_sdata_running(sdata)) 3854 drv_config_iface_filter(local, sdata, 3855 sdata->vif.probe_req_reg ? 3856 FIF_PROBE_REQ : 0, 3857 FIF_PROBE_REQ); 3858 3859 if (global_change) 3860 ieee80211_configure_filter(local); 3861 } 3862 3863 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3864 { 3865 struct ieee80211_local *local = wiphy_priv(wiphy); 3866 3867 if (local->started) 3868 return -EOPNOTSUPP; 3869 3870 return drv_set_antenna(local, tx_ant, rx_ant); 3871 } 3872 3873 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3874 { 3875 struct ieee80211_local *local = wiphy_priv(wiphy); 3876 3877 return drv_get_antenna(local, tx_ant, rx_ant); 3878 } 3879 3880 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3881 struct net_device *dev, 3882 struct cfg80211_gtk_rekey_data *data) 3883 { 3884 struct ieee80211_local *local = wiphy_priv(wiphy); 3885 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3886 3887 if (!local->ops->set_rekey_data) 3888 return -EOPNOTSUPP; 3889 3890 drv_set_rekey_data(local, sdata, data); 3891 3892 return 0; 3893 } 3894 3895 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3896 const u8 *peer, u64 *cookie) 3897 { 3898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3899 struct ieee80211_local *local = sdata->local; 3900 struct ieee80211_qos_hdr *nullfunc; 3901 struct sk_buff *skb; 3902 int size = sizeof(*nullfunc); 3903 __le16 fc; 3904 bool qos; 3905 struct ieee80211_tx_info *info; 3906 struct sta_info *sta; 3907 struct ieee80211_chanctx_conf *chanctx_conf; 3908 enum nl80211_band band; 3909 int ret; 3910 3911 /* the lock is needed to assign the cookie later */ 3912 mutex_lock(&local->mtx); 3913 3914 rcu_read_lock(); 3915 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 3916 if (WARN_ON(!chanctx_conf)) { 3917 ret = -EINVAL; 3918 goto unlock; 3919 } 3920 band = chanctx_conf->def.chan->band; 3921 sta = sta_info_get_bss(sdata, peer); 3922 if (sta) { 3923 qos = sta->sta.wme; 3924 } else { 3925 ret = -ENOLINK; 3926 goto unlock; 3927 } 3928 3929 if (qos) { 3930 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3931 IEEE80211_STYPE_QOS_NULLFUNC | 3932 IEEE80211_FCTL_FROMDS); 3933 } else { 3934 size -= 2; 3935 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3936 IEEE80211_STYPE_NULLFUNC | 3937 IEEE80211_FCTL_FROMDS); 3938 } 3939 3940 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3941 if (!skb) { 3942 ret = -ENOMEM; 3943 goto unlock; 3944 } 3945 3946 skb->dev = dev; 3947 3948 skb_reserve(skb, local->hw.extra_tx_headroom); 3949 3950 nullfunc = skb_put(skb, size); 3951 nullfunc->frame_control = fc; 3952 nullfunc->duration_id = 0; 3953 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3954 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3955 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3956 nullfunc->seq_ctrl = 0; 3957 3958 info = IEEE80211_SKB_CB(skb); 3959 3960 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3961 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3962 info->band = band; 3963 3964 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3965 skb->priority = 7; 3966 if (qos) 3967 nullfunc->qos_ctrl = cpu_to_le16(7); 3968 3969 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3970 if (ret) { 3971 kfree_skb(skb); 3972 goto unlock; 3973 } 3974 3975 local_bh_disable(); 3976 ieee80211_xmit(sdata, sta, skb); 3977 local_bh_enable(); 3978 3979 ret = 0; 3980 unlock: 3981 rcu_read_unlock(); 3982 mutex_unlock(&local->mtx); 3983 3984 return ret; 3985 } 3986 3987 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3988 struct wireless_dev *wdev, 3989 unsigned int link_id, 3990 struct cfg80211_chan_def *chandef) 3991 { 3992 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3993 struct ieee80211_local *local = wiphy_priv(wiphy); 3994 struct ieee80211_chanctx_conf *chanctx_conf; 3995 struct ieee80211_link_data *link; 3996 int ret = -ENODATA; 3997 3998 rcu_read_lock(); 3999 link = rcu_dereference(sdata->link[link_id]); 4000 if (!link) { 4001 ret = -ENOLINK; 4002 goto out; 4003 } 4004 4005 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4006 if (chanctx_conf) { 4007 *chandef = link->conf->chandef; 4008 ret = 0; 4009 } else if (local->open_count > 0 && 4010 local->open_count == local->monitors && 4011 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4012 if (local->use_chanctx) 4013 *chandef = local->monitor_chandef; 4014 else 4015 *chandef = local->_oper_chandef; 4016 ret = 0; 4017 } 4018 out: 4019 rcu_read_unlock(); 4020 4021 return ret; 4022 } 4023 4024 #ifdef CONFIG_PM 4025 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4026 { 4027 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4028 } 4029 #endif 4030 4031 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4032 struct net_device *dev, 4033 struct cfg80211_qos_map *qos_map) 4034 { 4035 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4036 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4037 4038 if (qos_map) { 4039 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4040 if (!new_qos_map) 4041 return -ENOMEM; 4042 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4043 } else { 4044 /* A NULL qos_map was passed to disable QoS mapping */ 4045 new_qos_map = NULL; 4046 } 4047 4048 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4049 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4050 if (old_qos_map) 4051 kfree_rcu(old_qos_map, rcu_head); 4052 4053 return 0; 4054 } 4055 4056 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4057 struct net_device *dev, 4058 unsigned int link_id, 4059 struct cfg80211_chan_def *chandef) 4060 { 4061 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4062 struct ieee80211_link_data *link; 4063 int ret; 4064 u32 changed = 0; 4065 4066 link = sdata_dereference(sdata->link[link_id], sdata); 4067 4068 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4069 if (ret == 0) 4070 ieee80211_link_info_change_notify(sdata, link, changed); 4071 4072 return ret; 4073 } 4074 4075 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4076 u8 tsid, const u8 *peer, u8 up, 4077 u16 admitted_time) 4078 { 4079 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4080 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4081 int ac = ieee802_1d_to_ac[up]; 4082 4083 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4084 return -EOPNOTSUPP; 4085 4086 if (!(sdata->wmm_acm & BIT(up))) 4087 return -EINVAL; 4088 4089 if (ifmgd->tx_tspec[ac].admitted_time) 4090 return -EBUSY; 4091 4092 if (admitted_time) { 4093 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4094 ifmgd->tx_tspec[ac].tsid = tsid; 4095 ifmgd->tx_tspec[ac].up = up; 4096 } 4097 4098 return 0; 4099 } 4100 4101 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4102 u8 tsid, const u8 *peer) 4103 { 4104 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4105 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4106 struct ieee80211_local *local = wiphy_priv(wiphy); 4107 int ac; 4108 4109 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4110 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4111 4112 /* skip unused entries */ 4113 if (!tx_tspec->admitted_time) 4114 continue; 4115 4116 if (tx_tspec->tsid != tsid) 4117 continue; 4118 4119 /* due to this new packets will be reassigned to non-ACM ACs */ 4120 tx_tspec->up = -1; 4121 4122 /* Make sure that all packets have been sent to avoid to 4123 * restore the QoS params on packets that are still on the 4124 * queues. 4125 */ 4126 synchronize_net(); 4127 ieee80211_flush_queues(local, sdata, false); 4128 4129 /* restore the normal QoS parameters 4130 * (unconditionally to avoid races) 4131 */ 4132 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4133 tx_tspec->downgraded = false; 4134 ieee80211_sta_handle_tspec_ac_params(sdata); 4135 4136 /* finally clear all the data */ 4137 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4138 4139 return 0; 4140 } 4141 4142 return -ENOENT; 4143 } 4144 4145 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4146 u8 inst_id, 4147 enum nl80211_nan_func_term_reason reason, 4148 gfp_t gfp) 4149 { 4150 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4151 struct cfg80211_nan_func *func; 4152 u64 cookie; 4153 4154 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4155 return; 4156 4157 spin_lock_bh(&sdata->u.nan.func_lock); 4158 4159 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4160 if (WARN_ON(!func)) { 4161 spin_unlock_bh(&sdata->u.nan.func_lock); 4162 return; 4163 } 4164 4165 cookie = func->cookie; 4166 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4167 4168 spin_unlock_bh(&sdata->u.nan.func_lock); 4169 4170 cfg80211_free_nan_func(func); 4171 4172 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4173 reason, cookie, gfp); 4174 } 4175 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4176 4177 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4178 struct cfg80211_nan_match_params *match, 4179 gfp_t gfp) 4180 { 4181 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4182 struct cfg80211_nan_func *func; 4183 4184 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4185 return; 4186 4187 spin_lock_bh(&sdata->u.nan.func_lock); 4188 4189 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4190 if (WARN_ON(!func)) { 4191 spin_unlock_bh(&sdata->u.nan.func_lock); 4192 return; 4193 } 4194 match->cookie = func->cookie; 4195 4196 spin_unlock_bh(&sdata->u.nan.func_lock); 4197 4198 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4199 } 4200 EXPORT_SYMBOL(ieee80211_nan_func_match); 4201 4202 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4203 struct net_device *dev, 4204 const bool enabled) 4205 { 4206 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4207 4208 sdata->u.ap.multicast_to_unicast = enabled; 4209 4210 return 0; 4211 } 4212 4213 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4214 struct txq_info *txqi) 4215 { 4216 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4217 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4218 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4219 } 4220 4221 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4222 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4223 txqstats->backlog_packets = txqi->tin.backlog_packets; 4224 } 4225 4226 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4227 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4228 txqstats->flows = txqi->tin.flows; 4229 } 4230 4231 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4232 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4233 txqstats->drops = txqi->cstats.drop_count; 4234 } 4235 4236 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4237 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4238 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4239 } 4240 4241 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4242 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4243 txqstats->overlimit = txqi->tin.overlimit; 4244 } 4245 4246 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4247 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4248 txqstats->collisions = txqi->tin.collisions; 4249 } 4250 4251 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4252 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4253 txqstats->tx_bytes = txqi->tin.tx_bytes; 4254 } 4255 4256 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4257 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4258 txqstats->tx_packets = txqi->tin.tx_packets; 4259 } 4260 } 4261 4262 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4263 struct wireless_dev *wdev, 4264 struct cfg80211_txq_stats *txqstats) 4265 { 4266 struct ieee80211_local *local = wiphy_priv(wiphy); 4267 struct ieee80211_sub_if_data *sdata; 4268 int ret = 0; 4269 4270 if (!local->ops->wake_tx_queue) 4271 return 1; 4272 4273 spin_lock_bh(&local->fq.lock); 4274 rcu_read_lock(); 4275 4276 if (wdev) { 4277 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4278 if (!sdata->vif.txq) { 4279 ret = 1; 4280 goto out; 4281 } 4282 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4283 } else { 4284 /* phy stats */ 4285 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4286 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4287 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4288 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4289 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4290 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4291 txqstats->backlog_packets = local->fq.backlog; 4292 txqstats->backlog_bytes = local->fq.memory_usage; 4293 txqstats->overlimit = local->fq.overlimit; 4294 txqstats->overmemory = local->fq.overmemory; 4295 txqstats->collisions = local->fq.collisions; 4296 txqstats->max_flows = local->fq.flows_cnt; 4297 } 4298 4299 out: 4300 rcu_read_unlock(); 4301 spin_unlock_bh(&local->fq.lock); 4302 4303 return ret; 4304 } 4305 4306 static int 4307 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4308 struct net_device *dev, 4309 struct cfg80211_ftm_responder_stats *ftm_stats) 4310 { 4311 struct ieee80211_local *local = wiphy_priv(wiphy); 4312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4313 4314 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4315 } 4316 4317 static int 4318 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4319 struct cfg80211_pmsr_request *request) 4320 { 4321 struct ieee80211_local *local = wiphy_priv(wiphy); 4322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4323 4324 return drv_start_pmsr(local, sdata, request); 4325 } 4326 4327 static void 4328 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4329 struct cfg80211_pmsr_request *request) 4330 { 4331 struct ieee80211_local *local = wiphy_priv(wiphy); 4332 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4333 4334 return drv_abort_pmsr(local, sdata, request); 4335 } 4336 4337 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4338 struct net_device *dev, 4339 struct cfg80211_tid_config *tid_conf) 4340 { 4341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4342 struct sta_info *sta; 4343 int ret; 4344 4345 if (!sdata->local->ops->set_tid_config) 4346 return -EOPNOTSUPP; 4347 4348 if (!tid_conf->peer) 4349 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4350 4351 mutex_lock(&sdata->local->sta_mtx); 4352 sta = sta_info_get_bss(sdata, tid_conf->peer); 4353 if (!sta) { 4354 mutex_unlock(&sdata->local->sta_mtx); 4355 return -ENOENT; 4356 } 4357 4358 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4359 mutex_unlock(&sdata->local->sta_mtx); 4360 4361 return ret; 4362 } 4363 4364 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4365 struct net_device *dev, 4366 const u8 *peer, u8 tids) 4367 { 4368 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4369 struct sta_info *sta; 4370 int ret; 4371 4372 if (!sdata->local->ops->reset_tid_config) 4373 return -EOPNOTSUPP; 4374 4375 if (!peer) 4376 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4377 4378 mutex_lock(&sdata->local->sta_mtx); 4379 sta = sta_info_get_bss(sdata, peer); 4380 if (!sta) { 4381 mutex_unlock(&sdata->local->sta_mtx); 4382 return -ENOENT; 4383 } 4384 4385 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4386 mutex_unlock(&sdata->local->sta_mtx); 4387 4388 return ret; 4389 } 4390 4391 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4392 struct cfg80211_sar_specs *sar) 4393 { 4394 struct ieee80211_local *local = wiphy_priv(wiphy); 4395 4396 if (!local->ops->set_sar_specs) 4397 return -EOPNOTSUPP; 4398 4399 return local->ops->set_sar_specs(&local->hw, sar); 4400 } 4401 4402 static int 4403 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4404 u32 *changed) 4405 { 4406 switch (sdata->vif.type) { 4407 case NL80211_IFTYPE_AP: { 4408 int ret; 4409 4410 if (!sdata->deflink.u.ap.next_beacon) 4411 return -EINVAL; 4412 4413 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4414 sdata->deflink.u.ap.next_beacon, 4415 NULL, NULL); 4416 ieee80211_free_next_beacon(&sdata->deflink); 4417 4418 if (ret < 0) 4419 return ret; 4420 4421 *changed |= ret; 4422 break; 4423 } 4424 default: 4425 WARN_ON_ONCE(1); 4426 return -EINVAL; 4427 } 4428 4429 return 0; 4430 } 4431 4432 static int 4433 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4434 struct cfg80211_color_change_settings *params, 4435 u32 *changed) 4436 { 4437 struct ieee80211_color_change_settings color_change = {}; 4438 int err; 4439 4440 switch (sdata->vif.type) { 4441 case NL80211_IFTYPE_AP: 4442 sdata->deflink.u.ap.next_beacon = 4443 cfg80211_beacon_dup(¶ms->beacon_next); 4444 if (!sdata->deflink.u.ap.next_beacon) 4445 return -ENOMEM; 4446 4447 if (params->count <= 1) 4448 break; 4449 4450 color_change.counter_offset_beacon = 4451 params->counter_offset_beacon; 4452 color_change.counter_offset_presp = 4453 params->counter_offset_presp; 4454 color_change.count = params->count; 4455 4456 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4457 ¶ms->beacon_color_change, 4458 NULL, &color_change); 4459 if (err < 0) { 4460 ieee80211_free_next_beacon(&sdata->deflink); 4461 return err; 4462 } 4463 *changed |= err; 4464 break; 4465 default: 4466 return -EOPNOTSUPP; 4467 } 4468 4469 return 0; 4470 } 4471 4472 static void 4473 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4474 u8 color, int enable, u32 changed) 4475 { 4476 sdata->vif.bss_conf.he_bss_color.color = color; 4477 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4478 changed |= BSS_CHANGED_HE_BSS_COLOR; 4479 4480 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4481 4482 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4483 struct ieee80211_sub_if_data *child; 4484 4485 mutex_lock(&sdata->local->iflist_mtx); 4486 list_for_each_entry(child, &sdata->local->interfaces, list) { 4487 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4488 child->vif.bss_conf.he_bss_color.color = color; 4489 child->vif.bss_conf.he_bss_color.enabled = enable; 4490 ieee80211_link_info_change_notify(child, 4491 &child->deflink, 4492 BSS_CHANGED_HE_BSS_COLOR); 4493 } 4494 } 4495 mutex_unlock(&sdata->local->iflist_mtx); 4496 } 4497 } 4498 4499 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4500 { 4501 struct ieee80211_local *local = sdata->local; 4502 u32 changed = 0; 4503 int err; 4504 4505 sdata_assert_lock(sdata); 4506 lockdep_assert_held(&local->mtx); 4507 4508 sdata->vif.bss_conf.color_change_active = false; 4509 4510 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4511 if (err) { 4512 cfg80211_color_change_aborted_notify(sdata->dev); 4513 return err; 4514 } 4515 4516 ieee80211_color_change_bss_config_notify(sdata, 4517 sdata->vif.bss_conf.color_change_color, 4518 1, changed); 4519 cfg80211_color_change_notify(sdata->dev); 4520 4521 return 0; 4522 } 4523 4524 void ieee80211_color_change_finalize_work(struct work_struct *work) 4525 { 4526 struct ieee80211_sub_if_data *sdata = 4527 container_of(work, struct ieee80211_sub_if_data, 4528 deflink.color_change_finalize_work); 4529 struct ieee80211_local *local = sdata->local; 4530 4531 sdata_lock(sdata); 4532 mutex_lock(&local->mtx); 4533 4534 /* AP might have been stopped while waiting for the lock. */ 4535 if (!sdata->vif.bss_conf.color_change_active) 4536 goto unlock; 4537 4538 if (!ieee80211_sdata_running(sdata)) 4539 goto unlock; 4540 4541 ieee80211_color_change_finalize(sdata); 4542 4543 unlock: 4544 mutex_unlock(&local->mtx); 4545 sdata_unlock(sdata); 4546 } 4547 4548 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4549 { 4550 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4551 4552 ieee80211_queue_work(&sdata->local->hw, 4553 &sdata->deflink.color_change_finalize_work); 4554 } 4555 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4556 4557 void 4558 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4559 u64 color_bitmap, gfp_t gfp) 4560 { 4561 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4562 4563 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4564 return; 4565 4566 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp); 4567 } 4568 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); 4569 4570 static int 4571 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4572 struct cfg80211_color_change_settings *params) 4573 { 4574 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4575 struct ieee80211_local *local = sdata->local; 4576 u32 changed = 0; 4577 int err; 4578 4579 sdata_assert_lock(sdata); 4580 4581 if (sdata->vif.bss_conf.nontransmitted) 4582 return -EINVAL; 4583 4584 mutex_lock(&local->mtx); 4585 4586 /* don't allow another color change if one is already active or if csa 4587 * is active 4588 */ 4589 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4590 err = -EBUSY; 4591 goto out; 4592 } 4593 4594 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4595 if (err) 4596 goto out; 4597 4598 sdata->vif.bss_conf.color_change_active = true; 4599 sdata->vif.bss_conf.color_change_color = params->color; 4600 4601 cfg80211_color_change_started_notify(sdata->dev, params->count); 4602 4603 if (changed) 4604 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4605 else 4606 /* if the beacon didn't change, we can finalize immediately */ 4607 ieee80211_color_change_finalize(sdata); 4608 4609 out: 4610 mutex_unlock(&local->mtx); 4611 4612 return err; 4613 } 4614 4615 static int 4616 ieee80211_set_radar_background(struct wiphy *wiphy, 4617 struct cfg80211_chan_def *chandef) 4618 { 4619 struct ieee80211_local *local = wiphy_priv(wiphy); 4620 4621 if (!local->ops->set_radar_background) 4622 return -EOPNOTSUPP; 4623 4624 return local->ops->set_radar_background(&local->hw, chandef); 4625 } 4626 4627 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4628 struct wireless_dev *wdev, 4629 unsigned int link_id) 4630 { 4631 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4632 4633 return ieee80211_vif_set_links(sdata, wdev->valid_links); 4634 } 4635 4636 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4637 struct wireless_dev *wdev, 4638 unsigned int link_id) 4639 { 4640 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4641 4642 ieee80211_vif_set_links(sdata, wdev->valid_links); 4643 } 4644 4645 static int sta_add_link_station(struct ieee80211_local *local, 4646 struct ieee80211_sub_if_data *sdata, 4647 struct link_station_parameters *params) 4648 { 4649 struct sta_info *sta; 4650 int ret; 4651 4652 sta = sta_info_get_bss(sdata, params->mld_mac); 4653 if (!sta) 4654 return -ENOENT; 4655 4656 if (sta->sta.valid_links & BIT(params->link_id)) 4657 return -EALREADY; 4658 4659 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4660 if (ret) 4661 return ret; 4662 4663 ret = sta_link_apply_parameters(local, sta, params); 4664 if (ret) { 4665 ieee80211_sta_free_link(sta, params->link_id); 4666 return ret; 4667 } 4668 4669 /* ieee80211_sta_activate_link frees the link upon failure */ 4670 return ieee80211_sta_activate_link(sta, params->link_id); 4671 } 4672 4673 static int 4674 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4675 struct link_station_parameters *params) 4676 { 4677 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4678 struct ieee80211_local *local = wiphy_priv(wiphy); 4679 int ret; 4680 4681 mutex_lock(&sdata->local->sta_mtx); 4682 ret = sta_add_link_station(local, sdata, params); 4683 mutex_unlock(&sdata->local->sta_mtx); 4684 4685 return ret; 4686 } 4687 4688 static int sta_mod_link_station(struct ieee80211_local *local, 4689 struct ieee80211_sub_if_data *sdata, 4690 struct link_station_parameters *params) 4691 { 4692 struct sta_info *sta; 4693 4694 sta = sta_info_get_bss(sdata, params->mld_mac); 4695 if (!sta) 4696 return -ENOENT; 4697 4698 if (!(sta->sta.valid_links & BIT(params->link_id))) 4699 return -EINVAL; 4700 4701 return sta_link_apply_parameters(local, sta, params); 4702 } 4703 4704 static int 4705 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4706 struct link_station_parameters *params) 4707 { 4708 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4709 struct ieee80211_local *local = wiphy_priv(wiphy); 4710 int ret; 4711 4712 mutex_lock(&sdata->local->sta_mtx); 4713 ret = sta_mod_link_station(local, sdata, params); 4714 mutex_unlock(&sdata->local->sta_mtx); 4715 4716 return ret; 4717 } 4718 4719 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4720 struct link_station_del_parameters *params) 4721 { 4722 struct sta_info *sta; 4723 4724 sta = sta_info_get_bss(sdata, params->mld_mac); 4725 if (!sta) 4726 return -ENOENT; 4727 4728 if (!(sta->sta.valid_links & BIT(params->link_id))) 4729 return -EINVAL; 4730 4731 ieee80211_sta_remove_link(sta, params->link_id); 4732 4733 return 0; 4734 } 4735 4736 static int 4737 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4738 struct link_station_del_parameters *params) 4739 { 4740 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4741 int ret; 4742 4743 mutex_lock(&sdata->local->sta_mtx); 4744 ret = sta_del_link_station(sdata, params); 4745 mutex_unlock(&sdata->local->sta_mtx); 4746 4747 return ret; 4748 } 4749 4750 const struct cfg80211_ops mac80211_config_ops = { 4751 .add_virtual_intf = ieee80211_add_iface, 4752 .del_virtual_intf = ieee80211_del_iface, 4753 .change_virtual_intf = ieee80211_change_iface, 4754 .start_p2p_device = ieee80211_start_p2p_device, 4755 .stop_p2p_device = ieee80211_stop_p2p_device, 4756 .add_key = ieee80211_add_key, 4757 .del_key = ieee80211_del_key, 4758 .get_key = ieee80211_get_key, 4759 .set_default_key = ieee80211_config_default_key, 4760 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4761 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4762 .start_ap = ieee80211_start_ap, 4763 .change_beacon = ieee80211_change_beacon, 4764 .stop_ap = ieee80211_stop_ap, 4765 .add_station = ieee80211_add_station, 4766 .del_station = ieee80211_del_station, 4767 .change_station = ieee80211_change_station, 4768 .get_station = ieee80211_get_station, 4769 .dump_station = ieee80211_dump_station, 4770 .dump_survey = ieee80211_dump_survey, 4771 #ifdef CONFIG_MAC80211_MESH 4772 .add_mpath = ieee80211_add_mpath, 4773 .del_mpath = ieee80211_del_mpath, 4774 .change_mpath = ieee80211_change_mpath, 4775 .get_mpath = ieee80211_get_mpath, 4776 .dump_mpath = ieee80211_dump_mpath, 4777 .get_mpp = ieee80211_get_mpp, 4778 .dump_mpp = ieee80211_dump_mpp, 4779 .update_mesh_config = ieee80211_update_mesh_config, 4780 .get_mesh_config = ieee80211_get_mesh_config, 4781 .join_mesh = ieee80211_join_mesh, 4782 .leave_mesh = ieee80211_leave_mesh, 4783 #endif 4784 .join_ocb = ieee80211_join_ocb, 4785 .leave_ocb = ieee80211_leave_ocb, 4786 .change_bss = ieee80211_change_bss, 4787 .set_txq_params = ieee80211_set_txq_params, 4788 .set_monitor_channel = ieee80211_set_monitor_channel, 4789 .suspend = ieee80211_suspend, 4790 .resume = ieee80211_resume, 4791 .scan = ieee80211_scan, 4792 .abort_scan = ieee80211_abort_scan, 4793 .sched_scan_start = ieee80211_sched_scan_start, 4794 .sched_scan_stop = ieee80211_sched_scan_stop, 4795 .auth = ieee80211_auth, 4796 .assoc = ieee80211_assoc, 4797 .deauth = ieee80211_deauth, 4798 .disassoc = ieee80211_disassoc, 4799 .join_ibss = ieee80211_join_ibss, 4800 .leave_ibss = ieee80211_leave_ibss, 4801 .set_mcast_rate = ieee80211_set_mcast_rate, 4802 .set_wiphy_params = ieee80211_set_wiphy_params, 4803 .set_tx_power = ieee80211_set_tx_power, 4804 .get_tx_power = ieee80211_get_tx_power, 4805 .rfkill_poll = ieee80211_rfkill_poll, 4806 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4807 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4808 .set_power_mgmt = ieee80211_set_power_mgmt, 4809 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4810 .remain_on_channel = ieee80211_remain_on_channel, 4811 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4812 .mgmt_tx = ieee80211_mgmt_tx, 4813 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4814 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4815 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4816 .update_mgmt_frame_registrations = 4817 ieee80211_update_mgmt_frame_registrations, 4818 .set_antenna = ieee80211_set_antenna, 4819 .get_antenna = ieee80211_get_antenna, 4820 .set_rekey_data = ieee80211_set_rekey_data, 4821 .tdls_oper = ieee80211_tdls_oper, 4822 .tdls_mgmt = ieee80211_tdls_mgmt, 4823 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4824 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4825 .probe_client = ieee80211_probe_client, 4826 .set_noack_map = ieee80211_set_noack_map, 4827 #ifdef CONFIG_PM 4828 .set_wakeup = ieee80211_set_wakeup, 4829 #endif 4830 .get_channel = ieee80211_cfg_get_channel, 4831 .start_radar_detection = ieee80211_start_radar_detection, 4832 .end_cac = ieee80211_end_cac, 4833 .channel_switch = ieee80211_channel_switch, 4834 .set_qos_map = ieee80211_set_qos_map, 4835 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4836 .add_tx_ts = ieee80211_add_tx_ts, 4837 .del_tx_ts = ieee80211_del_tx_ts, 4838 .start_nan = ieee80211_start_nan, 4839 .stop_nan = ieee80211_stop_nan, 4840 .nan_change_conf = ieee80211_nan_change_conf, 4841 .add_nan_func = ieee80211_add_nan_func, 4842 .del_nan_func = ieee80211_del_nan_func, 4843 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4844 .tx_control_port = ieee80211_tx_control_port, 4845 .get_txq_stats = ieee80211_get_txq_stats, 4846 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4847 .start_pmsr = ieee80211_start_pmsr, 4848 .abort_pmsr = ieee80211_abort_pmsr, 4849 .probe_mesh_link = ieee80211_probe_mesh_link, 4850 .set_tid_config = ieee80211_set_tid_config, 4851 .reset_tid_config = ieee80211_reset_tid_config, 4852 .set_sar_specs = ieee80211_set_sar_specs, 4853 .color_change = ieee80211_color_change, 4854 .set_radar_background = ieee80211_set_radar_background, 4855 .add_intf_link = ieee80211_add_intf_link, 4856 .del_intf_link = ieee80211_del_intf_link, 4857 .add_link_station = ieee80211_add_link_station, 4858 .mod_link_station = ieee80211_mod_link_station, 4859 .del_link_station = ieee80211_del_link_station, 4860 }; 4861