1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2025 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_ACTIVE to be changed 96 * while the interface is up. 97 * Else we would need to add a lot of cruft 98 * to update everything: 99 * monitor and all fif_* counters 100 * reconfigure hardware 101 */ 102 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 103 return -EBUSY; 104 } 105 106 /* also validate MU-MIMO change */ 107 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 108 monitor_sdata = sdata; 109 else 110 monitor_sdata = wiphy_dereference(local->hw.wiphy, 111 local->monitor_sdata); 112 113 if (!monitor_sdata && 114 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 115 return -EOPNOTSUPP; 116 117 /* apply all changes now - no failures allowed */ 118 119 if (monitor_sdata && 120 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 121 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))) 122 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 123 124 if (params->flags) { 125 if (ieee80211_sdata_running(sdata)) { 126 ieee80211_adjust_monitor_flags(sdata, -1); 127 sdata->u.mntr.flags = params->flags; 128 ieee80211_adjust_monitor_flags(sdata, 1); 129 130 ieee80211_configure_filter(local); 131 } else { 132 /* 133 * Because the interface is down, ieee80211_do_stop 134 * and ieee80211_do_open take care of "everything" 135 * mentioned in the comment above. 136 */ 137 sdata->u.mntr.flags = params->flags; 138 } 139 } 140 141 return 0; 142 } 143 144 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 145 struct cfg80211_mbssid_config *params, 146 struct ieee80211_bss_conf *link_conf) 147 { 148 struct ieee80211_sub_if_data *tx_sdata; 149 150 sdata->vif.mbssid_tx_vif = NULL; 151 link_conf->bssid_index = 0; 152 link_conf->nontransmitted = false; 153 link_conf->ema_ap = false; 154 link_conf->bssid_indicator = 0; 155 156 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev) 157 return -EINVAL; 158 159 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev); 160 if (!tx_sdata) 161 return -EINVAL; 162 163 if (tx_sdata == sdata) { 164 sdata->vif.mbssid_tx_vif = &sdata->vif; 165 } else { 166 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 167 link_conf->nontransmitted = true; 168 link_conf->bssid_index = params->index; 169 } 170 if (params->ema) 171 link_conf->ema_ap = true; 172 173 return 0; 174 } 175 176 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 177 const char *name, 178 unsigned char name_assign_type, 179 enum nl80211_iftype type, 180 struct vif_params *params) 181 { 182 struct ieee80211_local *local = wiphy_priv(wiphy); 183 struct wireless_dev *wdev; 184 struct ieee80211_sub_if_data *sdata; 185 int err; 186 187 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 188 if (err) 189 return ERR_PTR(err); 190 191 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 192 193 if (type == NL80211_IFTYPE_MONITOR) { 194 err = ieee80211_set_mon_options(sdata, params); 195 if (err) { 196 ieee80211_if_remove(sdata); 197 return NULL; 198 } 199 } 200 201 /* Let the driver know that an interface is going to be added. 202 * Indicate so only for interface types that will be added to the 203 * driver. 204 */ 205 switch (type) { 206 case NL80211_IFTYPE_AP_VLAN: 207 break; 208 case NL80211_IFTYPE_MONITOR: 209 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 210 !(params->flags & MONITOR_FLAG_ACTIVE)) 211 break; 212 fallthrough; 213 default: 214 drv_prep_add_interface(local, 215 ieee80211_vif_type_p2p(&sdata->vif)); 216 break; 217 } 218 219 return wdev; 220 } 221 222 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 223 { 224 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 225 226 return 0; 227 } 228 229 static int ieee80211_change_iface(struct wiphy *wiphy, 230 struct net_device *dev, 231 enum nl80211_iftype type, 232 struct vif_params *params) 233 { 234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 235 struct ieee80211_local *local = sdata->local; 236 struct sta_info *sta; 237 int ret; 238 239 lockdep_assert_wiphy(local->hw.wiphy); 240 241 ret = ieee80211_if_change_type(sdata, type); 242 if (ret) 243 return ret; 244 245 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 246 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 247 ieee80211_check_fast_rx_iface(sdata); 248 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 249 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 250 251 if (params->use_4addr == ifmgd->use_4addr) 252 return 0; 253 254 /* FIXME: no support for 4-addr MLO yet */ 255 if (ieee80211_vif_is_mld(&sdata->vif)) 256 return -EOPNOTSUPP; 257 258 sdata->u.mgd.use_4addr = params->use_4addr; 259 if (!ifmgd->associated) 260 return 0; 261 262 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 263 if (sta) 264 drv_sta_set_4addr(local, sdata, &sta->sta, 265 params->use_4addr); 266 267 if (params->use_4addr) 268 ieee80211_send_4addr_nullfunc(local, sdata); 269 } 270 271 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 272 ret = ieee80211_set_mon_options(sdata, params); 273 if (ret) 274 return ret; 275 } 276 277 return 0; 278 } 279 280 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 281 struct wireless_dev *wdev) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 289 if (ret < 0) 290 return ret; 291 292 return ieee80211_do_open(wdev, true); 293 } 294 295 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 296 struct wireless_dev *wdev) 297 { 298 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 299 } 300 301 static int ieee80211_start_nan(struct wiphy *wiphy, 302 struct wireless_dev *wdev, 303 struct cfg80211_nan_conf *conf) 304 { 305 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 306 int ret; 307 308 lockdep_assert_wiphy(sdata->local->hw.wiphy); 309 310 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 311 if (ret < 0) 312 return ret; 313 314 ret = ieee80211_do_open(wdev, true); 315 if (ret) 316 return ret; 317 318 ret = drv_start_nan(sdata->local, sdata, conf); 319 if (ret) 320 ieee80211_sdata_stop(sdata); 321 322 sdata->u.nan.conf = *conf; 323 324 return ret; 325 } 326 327 static void ieee80211_stop_nan(struct wiphy *wiphy, 328 struct wireless_dev *wdev) 329 { 330 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 331 332 drv_stop_nan(sdata->local, sdata); 333 ieee80211_sdata_stop(sdata); 334 } 335 336 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 337 struct wireless_dev *wdev, 338 struct cfg80211_nan_conf *conf, 339 u32 changes) 340 { 341 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 342 struct cfg80211_nan_conf new_conf; 343 int ret = 0; 344 345 if (sdata->vif.type != NL80211_IFTYPE_NAN) 346 return -EOPNOTSUPP; 347 348 if (!ieee80211_sdata_running(sdata)) 349 return -ENETDOWN; 350 351 new_conf = sdata->u.nan.conf; 352 353 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 354 new_conf.master_pref = conf->master_pref; 355 356 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 357 new_conf.bands = conf->bands; 358 359 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 360 if (!ret) 361 sdata->u.nan.conf = new_conf; 362 363 return ret; 364 } 365 366 static int ieee80211_add_nan_func(struct wiphy *wiphy, 367 struct wireless_dev *wdev, 368 struct cfg80211_nan_func *nan_func) 369 { 370 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 371 int ret; 372 373 if (sdata->vif.type != NL80211_IFTYPE_NAN) 374 return -EOPNOTSUPP; 375 376 if (!ieee80211_sdata_running(sdata)) 377 return -ENETDOWN; 378 379 spin_lock_bh(&sdata->u.nan.func_lock); 380 381 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 382 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 383 GFP_ATOMIC); 384 spin_unlock_bh(&sdata->u.nan.func_lock); 385 386 if (ret < 0) 387 return ret; 388 389 nan_func->instance_id = ret; 390 391 WARN_ON(nan_func->instance_id == 0); 392 393 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 394 if (ret) { 395 spin_lock_bh(&sdata->u.nan.func_lock); 396 idr_remove(&sdata->u.nan.function_inst_ids, 397 nan_func->instance_id); 398 spin_unlock_bh(&sdata->u.nan.func_lock); 399 } 400 401 return ret; 402 } 403 404 static struct cfg80211_nan_func * 405 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 406 u64 cookie) 407 { 408 struct cfg80211_nan_func *func; 409 int id; 410 411 lockdep_assert_held(&sdata->u.nan.func_lock); 412 413 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 414 if (func->cookie == cookie) 415 return func; 416 } 417 418 return NULL; 419 } 420 421 static void ieee80211_del_nan_func(struct wiphy *wiphy, 422 struct wireless_dev *wdev, u64 cookie) 423 { 424 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 425 struct cfg80211_nan_func *func; 426 u8 instance_id = 0; 427 428 if (sdata->vif.type != NL80211_IFTYPE_NAN || 429 !ieee80211_sdata_running(sdata)) 430 return; 431 432 spin_lock_bh(&sdata->u.nan.func_lock); 433 434 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 435 if (func) 436 instance_id = func->instance_id; 437 438 spin_unlock_bh(&sdata->u.nan.func_lock); 439 440 if (instance_id) 441 drv_del_nan_func(sdata->local, sdata, instance_id); 442 } 443 444 static int ieee80211_set_noack_map(struct wiphy *wiphy, 445 struct net_device *dev, 446 u16 noack_map) 447 { 448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 449 450 sdata->noack_map = noack_map; 451 452 ieee80211_check_fast_xmit_iface(sdata); 453 454 return 0; 455 } 456 457 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 458 const u8 *mac_addr, u8 key_idx) 459 { 460 struct ieee80211_local *local = sdata->local; 461 struct ieee80211_key *key; 462 struct sta_info *sta; 463 int ret = -EINVAL; 464 465 if (!wiphy_ext_feature_isset(local->hw.wiphy, 466 NL80211_EXT_FEATURE_EXT_KEY_ID)) 467 return -EINVAL; 468 469 sta = sta_info_get_bss(sdata, mac_addr); 470 471 if (!sta) 472 return -EINVAL; 473 474 if (sta->ptk_idx == key_idx) 475 return 0; 476 477 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 478 479 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 480 ret = ieee80211_set_tx_key(key); 481 482 return ret; 483 } 484 485 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 486 int link_id, u8 key_idx, bool pairwise, 487 const u8 *mac_addr, struct key_params *params) 488 { 489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 490 struct ieee80211_link_data *link = 491 ieee80211_link_or_deflink(sdata, link_id, false); 492 struct ieee80211_local *local = sdata->local; 493 struct sta_info *sta = NULL; 494 struct ieee80211_key *key; 495 int err; 496 497 lockdep_assert_wiphy(local->hw.wiphy); 498 499 if (!ieee80211_sdata_running(sdata)) 500 return -ENETDOWN; 501 502 if (IS_ERR(link)) 503 return PTR_ERR(link); 504 505 if (WARN_ON(pairwise && link_id >= 0)) 506 return -EINVAL; 507 508 if (pairwise && params->mode == NL80211_KEY_SET_TX) 509 return ieee80211_set_tx(sdata, mac_addr, key_idx); 510 511 /* reject WEP and TKIP keys if WEP failed to initialize */ 512 switch (params->cipher) { 513 case WLAN_CIPHER_SUITE_WEP40: 514 case WLAN_CIPHER_SUITE_TKIP: 515 case WLAN_CIPHER_SUITE_WEP104: 516 if (link_id >= 0) 517 return -EINVAL; 518 if (WARN_ON_ONCE(fips_enabled)) 519 return -EINVAL; 520 break; 521 default: 522 break; 523 } 524 525 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 526 params->key, params->seq_len, params->seq); 527 if (IS_ERR(key)) 528 return PTR_ERR(key); 529 530 if (pairwise) { 531 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 532 key->conf.link_id = -1; 533 } else { 534 key->conf.link_id = link->link_id; 535 } 536 537 if (params->mode == NL80211_KEY_NO_TX) 538 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 539 540 if (mac_addr) { 541 sta = sta_info_get_bss(sdata, mac_addr); 542 /* 543 * The ASSOC test makes sure the driver is ready to 544 * receive the key. When wpa_supplicant has roamed 545 * using FT, it attempts to set the key before 546 * association has completed, this rejects that attempt 547 * so it will set the key again after association. 548 * 549 * TODO: accept the key if we have a station entry and 550 * add it to the device after the station. 551 */ 552 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 553 ieee80211_key_free_unused(key); 554 return -ENOENT; 555 } 556 } 557 558 switch (sdata->vif.type) { 559 case NL80211_IFTYPE_STATION: 560 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 561 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 562 break; 563 case NL80211_IFTYPE_AP: 564 case NL80211_IFTYPE_AP_VLAN: 565 /* Keys without a station are used for TX only */ 566 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 567 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 568 break; 569 case NL80211_IFTYPE_ADHOC: 570 /* no MFP (yet) */ 571 break; 572 case NL80211_IFTYPE_MESH_POINT: 573 #ifdef CONFIG_MAC80211_MESH 574 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 575 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 576 break; 577 #endif 578 case NL80211_IFTYPE_WDS: 579 case NL80211_IFTYPE_MONITOR: 580 case NL80211_IFTYPE_P2P_DEVICE: 581 case NL80211_IFTYPE_NAN: 582 case NL80211_IFTYPE_UNSPECIFIED: 583 case NUM_NL80211_IFTYPES: 584 case NL80211_IFTYPE_P2P_CLIENT: 585 case NL80211_IFTYPE_P2P_GO: 586 case NL80211_IFTYPE_OCB: 587 /* shouldn't happen */ 588 WARN_ON_ONCE(1); 589 break; 590 } 591 592 err = ieee80211_key_link(key, link, sta); 593 /* KRACK protection, shouldn't happen but just silently accept key */ 594 if (err == -EALREADY) 595 err = 0; 596 597 return err; 598 } 599 600 static struct ieee80211_key * 601 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 602 u8 key_idx, bool pairwise, const u8 *mac_addr) 603 { 604 struct ieee80211_local *local __maybe_unused = sdata->local; 605 struct ieee80211_link_data *link = &sdata->deflink; 606 struct ieee80211_key *key; 607 608 if (link_id >= 0) { 609 link = sdata_dereference(sdata->link[link_id], sdata); 610 if (!link) 611 return NULL; 612 } 613 614 if (mac_addr) { 615 struct sta_info *sta; 616 struct link_sta_info *link_sta; 617 618 sta = sta_info_get_bss(sdata, mac_addr); 619 if (!sta) 620 return NULL; 621 622 if (link_id >= 0) { 623 link_sta = rcu_dereference_check(sta->link[link_id], 624 lockdep_is_held(&local->hw.wiphy->mtx)); 625 if (!link_sta) 626 return NULL; 627 } else { 628 link_sta = &sta->deflink; 629 } 630 631 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 632 return wiphy_dereference(local->hw.wiphy, 633 sta->ptk[key_idx]); 634 635 if (!pairwise && 636 key_idx < NUM_DEFAULT_KEYS + 637 NUM_DEFAULT_MGMT_KEYS + 638 NUM_DEFAULT_BEACON_KEYS) 639 return wiphy_dereference(local->hw.wiphy, 640 link_sta->gtk[key_idx]); 641 642 return NULL; 643 } 644 645 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 646 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 647 648 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 649 if (key) 650 return key; 651 652 /* or maybe it was a WEP key */ 653 if (key_idx < NUM_DEFAULT_KEYS) 654 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 655 656 return NULL; 657 } 658 659 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 660 int link_id, u8 key_idx, bool pairwise, 661 const u8 *mac_addr) 662 { 663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 664 struct ieee80211_local *local = sdata->local; 665 struct ieee80211_key *key; 666 667 lockdep_assert_wiphy(local->hw.wiphy); 668 669 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 670 if (!key) 671 return -ENOENT; 672 673 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 674 675 return 0; 676 } 677 678 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 679 int link_id, u8 key_idx, bool pairwise, 680 const u8 *mac_addr, void *cookie, 681 void (*callback)(void *cookie, 682 struct key_params *params)) 683 { 684 struct ieee80211_sub_if_data *sdata; 685 u8 seq[6] = {0}; 686 struct key_params params; 687 struct ieee80211_key *key; 688 u64 pn64; 689 u32 iv32; 690 u16 iv16; 691 int err = -ENOENT; 692 struct ieee80211_key_seq kseq = {}; 693 694 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 695 696 rcu_read_lock(); 697 698 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 699 if (!key) 700 goto out; 701 702 memset(¶ms, 0, sizeof(params)); 703 704 params.cipher = key->conf.cipher; 705 706 switch (key->conf.cipher) { 707 case WLAN_CIPHER_SUITE_TKIP: 708 pn64 = atomic64_read(&key->conf.tx_pn); 709 iv32 = TKIP_PN_TO_IV32(pn64); 710 iv16 = TKIP_PN_TO_IV16(pn64); 711 712 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 713 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 714 drv_get_key_seq(sdata->local, key, &kseq); 715 iv32 = kseq.tkip.iv32; 716 iv16 = kseq.tkip.iv16; 717 } 718 719 seq[0] = iv16 & 0xff; 720 seq[1] = (iv16 >> 8) & 0xff; 721 seq[2] = iv32 & 0xff; 722 seq[3] = (iv32 >> 8) & 0xff; 723 seq[4] = (iv32 >> 16) & 0xff; 724 seq[5] = (iv32 >> 24) & 0xff; 725 params.seq = seq; 726 params.seq_len = 6; 727 break; 728 case WLAN_CIPHER_SUITE_CCMP: 729 case WLAN_CIPHER_SUITE_CCMP_256: 730 case WLAN_CIPHER_SUITE_AES_CMAC: 731 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 732 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 733 offsetof(typeof(kseq), aes_cmac)); 734 fallthrough; 735 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 736 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 737 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 738 offsetof(typeof(kseq), aes_gmac)); 739 fallthrough; 740 case WLAN_CIPHER_SUITE_GCMP: 741 case WLAN_CIPHER_SUITE_GCMP_256: 742 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 743 offsetof(typeof(kseq), gcmp)); 744 745 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 746 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 747 drv_get_key_seq(sdata->local, key, &kseq); 748 memcpy(seq, kseq.ccmp.pn, 6); 749 } else { 750 pn64 = atomic64_read(&key->conf.tx_pn); 751 seq[0] = pn64; 752 seq[1] = pn64 >> 8; 753 seq[2] = pn64 >> 16; 754 seq[3] = pn64 >> 24; 755 seq[4] = pn64 >> 32; 756 seq[5] = pn64 >> 40; 757 } 758 params.seq = seq; 759 params.seq_len = 6; 760 break; 761 default: 762 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 763 break; 764 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 765 break; 766 drv_get_key_seq(sdata->local, key, &kseq); 767 params.seq = kseq.hw.seq; 768 params.seq_len = kseq.hw.seq_len; 769 break; 770 } 771 772 callback(cookie, ¶ms); 773 err = 0; 774 775 out: 776 rcu_read_unlock(); 777 return err; 778 } 779 780 static int ieee80211_config_default_key(struct wiphy *wiphy, 781 struct net_device *dev, 782 int link_id, u8 key_idx, bool uni, 783 bool multi) 784 { 785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 786 struct ieee80211_link_data *link = 787 ieee80211_link_or_deflink(sdata, link_id, false); 788 789 if (IS_ERR(link)) 790 return PTR_ERR(link); 791 792 ieee80211_set_default_key(link, key_idx, uni, multi); 793 794 return 0; 795 } 796 797 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 798 struct net_device *dev, 799 int link_id, u8 key_idx) 800 { 801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 802 struct ieee80211_link_data *link = 803 ieee80211_link_or_deflink(sdata, link_id, true); 804 805 if (IS_ERR(link)) 806 return PTR_ERR(link); 807 808 ieee80211_set_default_mgmt_key(link, key_idx); 809 810 return 0; 811 } 812 813 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 814 struct net_device *dev, 815 int link_id, u8 key_idx) 816 { 817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 818 struct ieee80211_link_data *link = 819 ieee80211_link_or_deflink(sdata, link_id, true); 820 821 if (IS_ERR(link)) 822 return PTR_ERR(link); 823 824 ieee80211_set_default_beacon_key(link, key_idx); 825 826 return 0; 827 } 828 829 void sta_set_rate_info_tx(struct sta_info *sta, 830 const struct ieee80211_tx_rate *rate, 831 struct rate_info *rinfo) 832 { 833 rinfo->flags = 0; 834 if (rate->flags & IEEE80211_TX_RC_MCS) { 835 rinfo->flags |= RATE_INFO_FLAGS_MCS; 836 rinfo->mcs = rate->idx; 837 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 838 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 839 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 840 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 841 } else { 842 struct ieee80211_supported_band *sband; 843 844 sband = ieee80211_get_sband(sta->sdata); 845 WARN_ON_ONCE(sband && !sband->bitrates); 846 if (sband && sband->bitrates) 847 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 848 } 849 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 850 rinfo->bw = RATE_INFO_BW_40; 851 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 852 rinfo->bw = RATE_INFO_BW_80; 853 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 854 rinfo->bw = RATE_INFO_BW_160; 855 else 856 rinfo->bw = RATE_INFO_BW_20; 857 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 858 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 859 } 860 861 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 862 int idx, u8 *mac, struct station_info *sinfo) 863 { 864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 865 struct ieee80211_local *local = sdata->local; 866 struct sta_info *sta; 867 int ret = -ENOENT; 868 869 lockdep_assert_wiphy(local->hw.wiphy); 870 871 sta = sta_info_get_by_idx(sdata, idx); 872 if (sta) { 873 ret = 0; 874 memcpy(mac, sta->sta.addr, ETH_ALEN); 875 sta_set_sinfo(sta, sinfo, true); 876 } 877 878 return ret; 879 } 880 881 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 882 int idx, struct survey_info *survey) 883 { 884 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 885 886 return drv_get_survey(local, idx, survey); 887 } 888 889 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 890 const u8 *mac, struct station_info *sinfo) 891 { 892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 893 struct ieee80211_local *local = sdata->local; 894 struct sta_info *sta; 895 int ret = -ENOENT; 896 897 lockdep_assert_wiphy(local->hw.wiphy); 898 899 sta = sta_info_get_bss(sdata, mac); 900 if (sta) { 901 ret = 0; 902 sta_set_sinfo(sta, sinfo, true); 903 } 904 905 return ret; 906 } 907 908 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 909 struct net_device *dev, 910 struct cfg80211_chan_def *chandef) 911 { 912 struct ieee80211_local *local = wiphy_priv(wiphy); 913 struct ieee80211_sub_if_data *sdata; 914 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 915 int ret; 916 917 lockdep_assert_wiphy(local->hw.wiphy); 918 919 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 920 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 921 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 922 &chanreq.oper)) 923 return 0; 924 925 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 926 if (!sdata) 927 goto done; 928 } 929 930 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 931 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 932 &chanreq.oper)) 933 return 0; 934 935 ieee80211_link_release_channel(&sdata->deflink); 936 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 937 IEEE80211_CHANCTX_SHARED); 938 if (ret) 939 return ret; 940 done: 941 local->monitor_chanreq = chanreq; 942 return 0; 943 } 944 945 static int 946 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 947 const u8 *resp, size_t resp_len, 948 const struct ieee80211_csa_settings *csa, 949 const struct ieee80211_color_change_settings *cca, 950 struct ieee80211_link_data *link) 951 { 952 struct probe_resp *new, *old; 953 954 if (!resp || !resp_len) 955 return 1; 956 957 old = sdata_dereference(link->u.ap.probe_resp, sdata); 958 959 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 960 if (!new) 961 return -ENOMEM; 962 963 new->len = resp_len; 964 memcpy(new->data, resp, resp_len); 965 966 if (csa) 967 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 968 csa->n_counter_offsets_presp * 969 sizeof(new->cntdwn_counter_offsets[0])); 970 else if (cca) 971 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 972 973 rcu_assign_pointer(link->u.ap.probe_resp, new); 974 if (old) 975 kfree_rcu(old, rcu_head); 976 977 return 0; 978 } 979 980 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 981 struct cfg80211_fils_discovery *params, 982 struct ieee80211_link_data *link, 983 struct ieee80211_bss_conf *link_conf, 984 u64 *changed) 985 { 986 struct fils_discovery_data *new, *old = NULL; 987 struct ieee80211_fils_discovery *fd; 988 989 if (!params->update) 990 return 0; 991 992 fd = &link_conf->fils_discovery; 993 fd->min_interval = params->min_interval; 994 fd->max_interval = params->max_interval; 995 996 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 997 if (old) 998 kfree_rcu(old, rcu_head); 999 1000 if (params->tmpl && params->tmpl_len) { 1001 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1002 if (!new) 1003 return -ENOMEM; 1004 new->len = params->tmpl_len; 1005 memcpy(new->data, params->tmpl, params->tmpl_len); 1006 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1007 } else { 1008 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1009 } 1010 1011 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1012 return 0; 1013 } 1014 1015 static int 1016 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1017 struct cfg80211_unsol_bcast_probe_resp *params, 1018 struct ieee80211_link_data *link, 1019 struct ieee80211_bss_conf *link_conf, 1020 u64 *changed) 1021 { 1022 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1023 1024 if (!params->update) 1025 return 0; 1026 1027 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1028 1029 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1030 if (old) 1031 kfree_rcu(old, rcu_head); 1032 1033 if (params->tmpl && params->tmpl_len) { 1034 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1035 if (!new) 1036 return -ENOMEM; 1037 new->len = params->tmpl_len; 1038 memcpy(new->data, params->tmpl, params->tmpl_len); 1039 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1040 } else { 1041 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1042 } 1043 1044 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1045 return 0; 1046 } 1047 1048 static int ieee80211_set_ftm_responder_params( 1049 struct ieee80211_sub_if_data *sdata, 1050 const u8 *lci, size_t lci_len, 1051 const u8 *civicloc, size_t civicloc_len, 1052 struct ieee80211_bss_conf *link_conf) 1053 { 1054 struct ieee80211_ftm_responder_params *new, *old; 1055 u8 *pos; 1056 int len; 1057 1058 if (!lci_len && !civicloc_len) 1059 return 0; 1060 1061 old = link_conf->ftmr_params; 1062 len = lci_len + civicloc_len; 1063 1064 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1065 if (!new) 1066 return -ENOMEM; 1067 1068 pos = (u8 *)(new + 1); 1069 if (lci_len) { 1070 new->lci_len = lci_len; 1071 new->lci = pos; 1072 memcpy(pos, lci, lci_len); 1073 pos += lci_len; 1074 } 1075 1076 if (civicloc_len) { 1077 new->civicloc_len = civicloc_len; 1078 new->civicloc = pos; 1079 memcpy(pos, civicloc, civicloc_len); 1080 pos += civicloc_len; 1081 } 1082 1083 link_conf->ftmr_params = new; 1084 kfree(old); 1085 1086 return 0; 1087 } 1088 1089 static int 1090 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1091 struct cfg80211_mbssid_elems *src) 1092 { 1093 int i, offset = 0; 1094 1095 dst->cnt = src->cnt; 1096 for (i = 0; i < src->cnt; i++) { 1097 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1098 dst->elem[i].len = src->elem[i].len; 1099 dst->elem[i].data = pos + offset; 1100 offset += dst->elem[i].len; 1101 } 1102 1103 return offset; 1104 } 1105 1106 static int 1107 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1108 struct cfg80211_rnr_elems *src) 1109 { 1110 int i, offset = 0; 1111 1112 for (i = 0; i < src->cnt; i++) { 1113 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1114 dst->elem[i].len = src->elem[i].len; 1115 dst->elem[i].data = pos + offset; 1116 offset += dst->elem[i].len; 1117 } 1118 dst->cnt = src->cnt; 1119 1120 return offset; 1121 } 1122 1123 static int 1124 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1125 struct ieee80211_link_data *link, 1126 struct cfg80211_beacon_data *params, 1127 const struct ieee80211_csa_settings *csa, 1128 const struct ieee80211_color_change_settings *cca, 1129 u64 *changed) 1130 { 1131 struct cfg80211_mbssid_elems *mbssid = NULL; 1132 struct cfg80211_rnr_elems *rnr = NULL; 1133 struct beacon_data *new, *old; 1134 int new_head_len, new_tail_len; 1135 int size, err; 1136 u64 _changed = BSS_CHANGED_BEACON; 1137 struct ieee80211_bss_conf *link_conf = link->conf; 1138 1139 old = sdata_dereference(link->u.ap.beacon, sdata); 1140 1141 /* Need to have a beacon head if we don't have one yet */ 1142 if (!params->head && !old) 1143 return -EINVAL; 1144 1145 /* new or old head? */ 1146 if (params->head) 1147 new_head_len = params->head_len; 1148 else 1149 new_head_len = old->head_len; 1150 1151 /* new or old tail? */ 1152 if (params->tail || !old) 1153 /* params->tail_len will be zero for !params->tail */ 1154 new_tail_len = params->tail_len; 1155 else 1156 new_tail_len = old->tail_len; 1157 1158 size = sizeof(*new) + new_head_len + new_tail_len; 1159 1160 /* new or old multiple BSSID elements? */ 1161 if (params->mbssid_ies) { 1162 mbssid = params->mbssid_ies; 1163 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1164 if (params->rnr_ies) { 1165 rnr = params->rnr_ies; 1166 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1167 } 1168 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1169 mbssid->cnt); 1170 } else if (old && old->mbssid_ies) { 1171 mbssid = old->mbssid_ies; 1172 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1173 if (old && old->rnr_ies) { 1174 rnr = old->rnr_ies; 1175 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1176 } 1177 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1178 mbssid->cnt); 1179 } 1180 1181 new = kzalloc(size, GFP_KERNEL); 1182 if (!new) 1183 return -ENOMEM; 1184 1185 /* start filling the new info now */ 1186 1187 /* 1188 * pointers go into the block we allocated, 1189 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1190 */ 1191 new->head = ((u8 *) new) + sizeof(*new); 1192 new->tail = new->head + new_head_len; 1193 new->head_len = new_head_len; 1194 new->tail_len = new_tail_len; 1195 /* copy in optional mbssid_ies */ 1196 if (mbssid) { 1197 u8 *pos = new->tail + new->tail_len; 1198 1199 new->mbssid_ies = (void *)pos; 1200 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1201 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1202 mbssid); 1203 if (rnr) { 1204 new->rnr_ies = (void *)pos; 1205 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1206 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1207 } 1208 /* update bssid_indicator */ 1209 link_conf->bssid_indicator = 1210 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1211 } 1212 1213 if (csa) { 1214 new->cntdwn_current_counter = csa->count; 1215 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1216 csa->n_counter_offsets_beacon * 1217 sizeof(new->cntdwn_counter_offsets[0])); 1218 } else if (cca) { 1219 new->cntdwn_current_counter = cca->count; 1220 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1221 } 1222 1223 /* copy in head */ 1224 if (params->head) 1225 memcpy(new->head, params->head, new_head_len); 1226 else 1227 memcpy(new->head, old->head, new_head_len); 1228 1229 /* copy in optional tail */ 1230 if (params->tail) 1231 memcpy(new->tail, params->tail, new_tail_len); 1232 else 1233 if (old) 1234 memcpy(new->tail, old->tail, new_tail_len); 1235 1236 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1237 params->probe_resp_len, csa, cca, link); 1238 if (err < 0) { 1239 kfree(new); 1240 return err; 1241 } 1242 if (err == 0) 1243 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1244 1245 if (params->ftm_responder != -1) { 1246 link_conf->ftm_responder = params->ftm_responder; 1247 err = ieee80211_set_ftm_responder_params(sdata, 1248 params->lci, 1249 params->lci_len, 1250 params->civicloc, 1251 params->civicloc_len, 1252 link_conf); 1253 1254 if (err < 0) { 1255 kfree(new); 1256 return err; 1257 } 1258 1259 _changed |= BSS_CHANGED_FTM_RESPONDER; 1260 } 1261 1262 rcu_assign_pointer(link->u.ap.beacon, new); 1263 sdata->u.ap.active = true; 1264 1265 if (old) 1266 kfree_rcu(old, rcu_head); 1267 1268 *changed |= _changed; 1269 return 0; 1270 } 1271 1272 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1273 { 1274 struct ieee80211_link_data *link; 1275 u8 link_id, num = 0; 1276 1277 if (sdata->vif.type != NL80211_IFTYPE_AP && 1278 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1279 return num; 1280 1281 if (!sdata->vif.valid_links) 1282 return num; 1283 1284 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1285 link = sdata_dereference(sdata->link[link_id], sdata); 1286 if (!link) 1287 continue; 1288 1289 if (sdata_dereference(link->u.ap.beacon, sdata)) 1290 num++; 1291 } 1292 1293 return num; 1294 } 1295 1296 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1297 struct cfg80211_ap_settings *params) 1298 { 1299 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1300 struct ieee80211_local *local = sdata->local; 1301 struct beacon_data *old; 1302 struct ieee80211_sub_if_data *vlan; 1303 u64 changed = BSS_CHANGED_BEACON_INT | 1304 BSS_CHANGED_BEACON_ENABLED | 1305 BSS_CHANGED_BEACON | 1306 BSS_CHANGED_P2P_PS | 1307 BSS_CHANGED_TXPOWER | 1308 BSS_CHANGED_TWT; 1309 int i, err; 1310 int prev_beacon_int; 1311 unsigned int link_id = params->beacon.link_id; 1312 struct ieee80211_link_data *link; 1313 struct ieee80211_bss_conf *link_conf; 1314 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1315 1316 lockdep_assert_wiphy(local->hw.wiphy); 1317 1318 link = sdata_dereference(sdata->link[link_id], sdata); 1319 if (!link) 1320 return -ENOLINK; 1321 1322 link_conf = link->conf; 1323 1324 old = sdata_dereference(link->u.ap.beacon, sdata); 1325 if (old) 1326 return -EALREADY; 1327 1328 link->smps_mode = IEEE80211_SMPS_OFF; 1329 1330 link->needed_rx_chains = sdata->local->rx_chains; 1331 1332 prev_beacon_int = link_conf->beacon_int; 1333 link_conf->beacon_int = params->beacon_interval; 1334 1335 if (params->ht_cap) 1336 link_conf->ht_ldpc = 1337 params->ht_cap->cap_info & 1338 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1339 1340 if (params->vht_cap) { 1341 link_conf->vht_ldpc = 1342 params->vht_cap->vht_cap_info & 1343 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1344 link_conf->vht_su_beamformer = 1345 params->vht_cap->vht_cap_info & 1346 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1347 link_conf->vht_su_beamformee = 1348 params->vht_cap->vht_cap_info & 1349 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1350 link_conf->vht_mu_beamformer = 1351 params->vht_cap->vht_cap_info & 1352 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1353 link_conf->vht_mu_beamformee = 1354 params->vht_cap->vht_cap_info & 1355 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1356 } 1357 1358 if (params->he_cap && params->he_oper) { 1359 link_conf->he_support = true; 1360 link_conf->htc_trig_based_pkt_ext = 1361 le32_get_bits(params->he_oper->he_oper_params, 1362 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1363 link_conf->frame_time_rts_th = 1364 le32_get_bits(params->he_oper->he_oper_params, 1365 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1366 changed |= BSS_CHANGED_HE_OBSS_PD; 1367 1368 if (params->beacon.he_bss_color.enabled) 1369 changed |= BSS_CHANGED_HE_BSS_COLOR; 1370 } 1371 1372 if (params->he_cap) { 1373 link_conf->he_ldpc = 1374 params->he_cap->phy_cap_info[1] & 1375 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1376 link_conf->he_su_beamformer = 1377 params->he_cap->phy_cap_info[3] & 1378 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1379 link_conf->he_su_beamformee = 1380 params->he_cap->phy_cap_info[4] & 1381 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1382 link_conf->he_mu_beamformer = 1383 params->he_cap->phy_cap_info[4] & 1384 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1385 link_conf->he_full_ul_mumimo = 1386 params->he_cap->phy_cap_info[2] & 1387 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1388 } 1389 1390 if (params->eht_cap) { 1391 if (!link_conf->he_support) 1392 return -EOPNOTSUPP; 1393 1394 link_conf->eht_support = true; 1395 1396 link_conf->eht_su_beamformer = 1397 params->eht_cap->fixed.phy_cap_info[0] & 1398 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1399 link_conf->eht_su_beamformee = 1400 params->eht_cap->fixed.phy_cap_info[0] & 1401 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1402 link_conf->eht_mu_beamformer = 1403 params->eht_cap->fixed.phy_cap_info[7] & 1404 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1405 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1406 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1407 link_conf->eht_80mhz_full_bw_ul_mumimo = 1408 params->eht_cap->fixed.phy_cap_info[7] & 1409 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1410 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1411 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1412 } else { 1413 link_conf->eht_su_beamformer = false; 1414 link_conf->eht_su_beamformee = false; 1415 link_conf->eht_mu_beamformer = false; 1416 } 1417 1418 if (sdata->vif.type == NL80211_IFTYPE_AP && 1419 params->mbssid_config.tx_wdev) { 1420 err = ieee80211_set_ap_mbssid_options(sdata, 1421 ¶ms->mbssid_config, 1422 link_conf); 1423 if (err) 1424 return err; 1425 } 1426 1427 err = ieee80211_link_use_channel(link, &chanreq, 1428 IEEE80211_CHANCTX_SHARED); 1429 if (!err) 1430 ieee80211_link_copy_chanctx_to_vlans(link, false); 1431 if (err) { 1432 link_conf->beacon_int = prev_beacon_int; 1433 return err; 1434 } 1435 1436 /* 1437 * Apply control port protocol, this allows us to 1438 * not encrypt dynamic WEP control frames. 1439 */ 1440 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1441 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1442 sdata->control_port_over_nl80211 = 1443 params->crypto.control_port_over_nl80211; 1444 sdata->control_port_no_preauth = 1445 params->crypto.control_port_no_preauth; 1446 1447 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1448 vlan->control_port_protocol = 1449 params->crypto.control_port_ethertype; 1450 vlan->control_port_no_encrypt = 1451 params->crypto.control_port_no_encrypt; 1452 vlan->control_port_over_nl80211 = 1453 params->crypto.control_port_over_nl80211; 1454 vlan->control_port_no_preauth = 1455 params->crypto.control_port_no_preauth; 1456 } 1457 1458 link_conf->dtim_period = params->dtim_period; 1459 link_conf->enable_beacon = true; 1460 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1461 link_conf->twt_responder = params->twt_responder; 1462 link_conf->he_obss_pd = params->he_obss_pd; 1463 link_conf->he_bss_color = params->beacon.he_bss_color; 1464 sdata->vif.cfg.s1g = params->chandef.chan->band == 1465 NL80211_BAND_S1GHZ; 1466 1467 sdata->vif.cfg.ssid_len = params->ssid_len; 1468 if (params->ssid_len) 1469 memcpy(sdata->vif.cfg.ssid, params->ssid, 1470 params->ssid_len); 1471 link_conf->hidden_ssid = 1472 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1473 1474 memset(&link_conf->p2p_noa_attr, 0, 1475 sizeof(link_conf->p2p_noa_attr)); 1476 link_conf->p2p_noa_attr.oppps_ctwindow = 1477 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1478 if (params->p2p_opp_ps) 1479 link_conf->p2p_noa_attr.oppps_ctwindow |= 1480 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1481 1482 sdata->beacon_rate_set = false; 1483 if (wiphy_ext_feature_isset(local->hw.wiphy, 1484 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1485 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1486 sdata->beacon_rateidx_mask[i] = 1487 params->beacon_rate.control[i].legacy; 1488 if (sdata->beacon_rateidx_mask[i]) 1489 sdata->beacon_rate_set = true; 1490 } 1491 } 1492 1493 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1494 link_conf->beacon_tx_rate = params->beacon_rate; 1495 1496 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1497 &changed); 1498 if (err < 0) 1499 goto error; 1500 1501 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1502 link, link_conf, &changed); 1503 if (err < 0) 1504 goto error; 1505 1506 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1507 ¶ms->unsol_bcast_probe_resp, 1508 link, link_conf, &changed); 1509 if (err < 0) 1510 goto error; 1511 1512 err = drv_start_ap(sdata->local, sdata, link_conf); 1513 if (err) { 1514 old = sdata_dereference(link->u.ap.beacon, sdata); 1515 1516 if (old) 1517 kfree_rcu(old, rcu_head); 1518 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1519 1520 if (ieee80211_num_beaconing_links(sdata) == 0) 1521 sdata->u.ap.active = false; 1522 1523 goto error; 1524 } 1525 1526 ieee80211_recalc_dtim(local, sdata); 1527 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1528 ieee80211_link_info_change_notify(sdata, link, changed); 1529 1530 if (ieee80211_num_beaconing_links(sdata) <= 1) 1531 netif_carrier_on(dev); 1532 1533 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1534 netif_carrier_on(vlan->dev); 1535 1536 return 0; 1537 1538 error: 1539 ieee80211_link_release_channel(link); 1540 1541 return err; 1542 } 1543 1544 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1545 struct cfg80211_ap_update *params) 1546 1547 { 1548 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1549 struct ieee80211_link_data *link; 1550 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1551 struct beacon_data *old; 1552 int err; 1553 struct ieee80211_bss_conf *link_conf; 1554 u64 changed = 0; 1555 1556 lockdep_assert_wiphy(wiphy); 1557 1558 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1559 if (!link) 1560 return -ENOLINK; 1561 1562 link_conf = link->conf; 1563 1564 /* don't allow changing the beacon while a countdown is in place - offset 1565 * of channel switch counter may change 1566 */ 1567 if (link_conf->csa_active || link_conf->color_change_active) 1568 return -EBUSY; 1569 1570 old = sdata_dereference(link->u.ap.beacon, sdata); 1571 if (!old) 1572 return -ENOENT; 1573 1574 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1575 &changed); 1576 if (err < 0) 1577 return err; 1578 1579 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1580 link, link_conf, &changed); 1581 if (err < 0) 1582 return err; 1583 1584 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1585 ¶ms->unsol_bcast_probe_resp, 1586 link, link_conf, &changed); 1587 if (err < 0) 1588 return err; 1589 1590 if (beacon->he_bss_color_valid && 1591 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1592 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1593 changed |= BSS_CHANGED_HE_BSS_COLOR; 1594 } 1595 1596 ieee80211_link_info_change_notify(sdata, link, changed); 1597 return 0; 1598 } 1599 1600 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1601 { 1602 if (!link->u.ap.next_beacon) 1603 return; 1604 1605 kfree(link->u.ap.next_beacon->mbssid_ies); 1606 kfree(link->u.ap.next_beacon->rnr_ies); 1607 kfree(link->u.ap.next_beacon); 1608 link->u.ap.next_beacon = NULL; 1609 } 1610 1611 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1612 unsigned int link_id) 1613 { 1614 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1615 struct ieee80211_sub_if_data *vlan; 1616 struct ieee80211_local *local = sdata->local; 1617 struct beacon_data *old_beacon; 1618 struct probe_resp *old_probe_resp; 1619 struct fils_discovery_data *old_fils_discovery; 1620 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1621 struct cfg80211_chan_def chandef; 1622 struct ieee80211_link_data *link = 1623 sdata_dereference(sdata->link[link_id], sdata); 1624 struct ieee80211_bss_conf *link_conf = link->conf; 1625 LIST_HEAD(keys); 1626 1627 lockdep_assert_wiphy(local->hw.wiphy); 1628 1629 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1630 if (!old_beacon) 1631 return -ENOENT; 1632 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1633 sdata); 1634 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1635 sdata); 1636 old_unsol_bcast_probe_resp = 1637 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1638 sdata); 1639 1640 /* abort any running channel switch or color change */ 1641 link_conf->csa_active = false; 1642 link_conf->color_change_active = false; 1643 ieee80211_vif_unblock_queues_csa(sdata); 1644 1645 ieee80211_free_next_beacon(link); 1646 1647 /* turn off carrier for this interface and dependent VLANs */ 1648 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1649 netif_carrier_off(vlan->dev); 1650 1651 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1652 netif_carrier_off(dev); 1653 sdata->u.ap.active = false; 1654 } 1655 1656 /* remove beacon and probe response */ 1657 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1658 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1659 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1660 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1661 kfree_rcu(old_beacon, rcu_head); 1662 if (old_probe_resp) 1663 kfree_rcu(old_probe_resp, rcu_head); 1664 if (old_fils_discovery) 1665 kfree_rcu(old_fils_discovery, rcu_head); 1666 if (old_unsol_bcast_probe_resp) 1667 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1668 1669 kfree(link_conf->ftmr_params); 1670 link_conf->ftmr_params = NULL; 1671 1672 sdata->vif.mbssid_tx_vif = NULL; 1673 link_conf->bssid_index = 0; 1674 link_conf->nontransmitted = false; 1675 link_conf->ema_ap = false; 1676 link_conf->bssid_indicator = 0; 1677 1678 __sta_info_flush(sdata, true, link_id, NULL); 1679 1680 ieee80211_remove_link_keys(link, &keys); 1681 if (!list_empty(&keys)) { 1682 synchronize_net(); 1683 ieee80211_free_key_list(local, &keys); 1684 } 1685 1686 link_conf->enable_beacon = false; 1687 sdata->beacon_rate_set = false; 1688 sdata->vif.cfg.ssid_len = 0; 1689 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1690 ieee80211_link_info_change_notify(sdata, link, 1691 BSS_CHANGED_BEACON_ENABLED); 1692 1693 if (sdata->wdev.links[link_id].cac_started) { 1694 chandef = link_conf->chanreq.oper; 1695 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1696 cfg80211_cac_event(sdata->dev, &chandef, 1697 NL80211_RADAR_CAC_ABORTED, 1698 GFP_KERNEL, link_id); 1699 } 1700 1701 drv_stop_ap(sdata->local, sdata, link_conf); 1702 1703 /* free all potentially still buffered bcast frames */ 1704 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1705 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1706 1707 ieee80211_link_copy_chanctx_to_vlans(link, true); 1708 ieee80211_link_release_channel(link); 1709 1710 return 0; 1711 } 1712 1713 static int sta_apply_auth_flags(struct ieee80211_local *local, 1714 struct sta_info *sta, 1715 u32 mask, u32 set) 1716 { 1717 int ret; 1718 1719 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1720 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1721 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1722 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1723 if (ret) 1724 return ret; 1725 } 1726 1727 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1728 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1729 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1730 /* 1731 * When peer becomes associated, init rate control as 1732 * well. Some drivers require rate control initialized 1733 * before drv_sta_state() is called. 1734 */ 1735 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1736 rate_control_rate_init_all_links(sta); 1737 1738 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1739 if (ret) 1740 return ret; 1741 } 1742 1743 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1744 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1745 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1746 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1747 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1748 else 1749 ret = 0; 1750 if (ret) 1751 return ret; 1752 } 1753 1754 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1755 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1756 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1757 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1758 if (ret) 1759 return ret; 1760 } 1761 1762 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1763 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1764 test_sta_flag(sta, WLAN_STA_AUTH)) { 1765 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1766 if (ret) 1767 return ret; 1768 } 1769 1770 return 0; 1771 } 1772 1773 static void sta_apply_mesh_params(struct ieee80211_local *local, 1774 struct sta_info *sta, 1775 struct station_parameters *params) 1776 { 1777 #ifdef CONFIG_MAC80211_MESH 1778 struct ieee80211_sub_if_data *sdata = sta->sdata; 1779 u64 changed = 0; 1780 1781 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1782 switch (params->plink_state) { 1783 case NL80211_PLINK_ESTAB: 1784 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1785 changed = mesh_plink_inc_estab_count(sdata); 1786 sta->mesh->plink_state = params->plink_state; 1787 sta->mesh->aid = params->peer_aid; 1788 1789 ieee80211_mps_sta_status_update(sta); 1790 changed |= ieee80211_mps_set_sta_local_pm(sta, 1791 sdata->u.mesh.mshcfg.power_mode); 1792 1793 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1794 /* init at low value */ 1795 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1796 1797 break; 1798 case NL80211_PLINK_LISTEN: 1799 case NL80211_PLINK_BLOCKED: 1800 case NL80211_PLINK_OPN_SNT: 1801 case NL80211_PLINK_OPN_RCVD: 1802 case NL80211_PLINK_CNF_RCVD: 1803 case NL80211_PLINK_HOLDING: 1804 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1805 changed = mesh_plink_dec_estab_count(sdata); 1806 sta->mesh->plink_state = params->plink_state; 1807 1808 ieee80211_mps_sta_status_update(sta); 1809 changed |= ieee80211_mps_set_sta_local_pm(sta, 1810 NL80211_MESH_POWER_UNKNOWN); 1811 break; 1812 default: 1813 /* nothing */ 1814 break; 1815 } 1816 } 1817 1818 switch (params->plink_action) { 1819 case NL80211_PLINK_ACTION_NO_ACTION: 1820 /* nothing */ 1821 break; 1822 case NL80211_PLINK_ACTION_OPEN: 1823 changed |= mesh_plink_open(sta); 1824 break; 1825 case NL80211_PLINK_ACTION_BLOCK: 1826 changed |= mesh_plink_block(sta); 1827 break; 1828 } 1829 1830 if (params->local_pm) 1831 changed |= ieee80211_mps_set_sta_local_pm(sta, 1832 params->local_pm); 1833 1834 ieee80211_mbss_info_change_notify(sdata, changed); 1835 #endif 1836 } 1837 1838 enum sta_link_apply_mode { 1839 STA_LINK_MODE_NEW, 1840 STA_LINK_MODE_STA_MODIFY, 1841 STA_LINK_MODE_LINK_MODIFY, 1842 }; 1843 1844 static int sta_link_apply_parameters(struct ieee80211_local *local, 1845 struct sta_info *sta, 1846 enum sta_link_apply_mode mode, 1847 struct link_station_parameters *params) 1848 { 1849 struct ieee80211_supported_band *sband; 1850 struct ieee80211_sub_if_data *sdata = sta->sdata; 1851 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1852 struct ieee80211_link_data *link = 1853 sdata_dereference(sdata->link[link_id], sdata); 1854 struct link_sta_info *link_sta = 1855 rcu_dereference_protected(sta->link[link_id], 1856 lockdep_is_held(&local->hw.wiphy->mtx)); 1857 bool changes = params->link_mac || 1858 params->txpwr_set || 1859 params->supported_rates_len || 1860 params->ht_capa || 1861 params->vht_capa || 1862 params->he_capa || 1863 params->eht_capa || 1864 params->opmode_notif_used; 1865 1866 switch (mode) { 1867 case STA_LINK_MODE_NEW: 1868 if (!params->link_mac) 1869 return -EINVAL; 1870 break; 1871 case STA_LINK_MODE_LINK_MODIFY: 1872 break; 1873 case STA_LINK_MODE_STA_MODIFY: 1874 if (params->link_id >= 0) 1875 break; 1876 if (!changes) 1877 return 0; 1878 break; 1879 } 1880 1881 if (!link || !link_sta) 1882 return -EINVAL; 1883 1884 sband = ieee80211_get_link_sband(link); 1885 if (!sband) 1886 return -EINVAL; 1887 1888 if (params->link_mac) { 1889 if (mode == STA_LINK_MODE_NEW) { 1890 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1891 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1892 } else if (!ether_addr_equal(link_sta->addr, 1893 params->link_mac)) { 1894 return -EINVAL; 1895 } 1896 } 1897 1898 if (params->txpwr_set) { 1899 int ret; 1900 1901 link_sta->pub->txpwr.type = params->txpwr.type; 1902 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1903 link_sta->pub->txpwr.power = params->txpwr.power; 1904 ret = drv_sta_set_txpwr(local, sdata, sta); 1905 if (ret) 1906 return ret; 1907 } 1908 1909 if (params->supported_rates && 1910 params->supported_rates_len && 1911 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1912 sband, params->supported_rates, 1913 params->supported_rates_len, 1914 &link_sta->pub->supp_rates[sband->band])) 1915 return -EINVAL; 1916 1917 if (params->ht_capa) 1918 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1919 params->ht_capa, link_sta); 1920 1921 /* VHT can override some HT caps such as the A-MSDU max length */ 1922 if (params->vht_capa) 1923 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1924 params->vht_capa, NULL, 1925 link_sta); 1926 1927 if (params->he_capa) 1928 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1929 (void *)params->he_capa, 1930 params->he_capa_len, 1931 (void *)params->he_6ghz_capa, 1932 link_sta); 1933 1934 if (params->he_capa && params->eht_capa) 1935 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1936 (u8 *)params->he_capa, 1937 params->he_capa_len, 1938 params->eht_capa, 1939 params->eht_capa_len, 1940 link_sta); 1941 1942 ieee80211_sta_init_nss(link_sta); 1943 1944 if (params->opmode_notif_used) { 1945 /* returned value is only needed for rc update, but the 1946 * rc isn't initialized here yet, so ignore it 1947 */ 1948 __ieee80211_vht_handle_opmode(sdata, link_sta, 1949 params->opmode_notif, 1950 sband->band); 1951 } 1952 1953 return 0; 1954 } 1955 1956 static int sta_apply_parameters(struct ieee80211_local *local, 1957 struct sta_info *sta, 1958 struct station_parameters *params) 1959 { 1960 struct ieee80211_sub_if_data *sdata = sta->sdata; 1961 u32 mask, set; 1962 int ret = 0; 1963 1964 mask = params->sta_flags_mask; 1965 set = params->sta_flags_set; 1966 1967 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1968 /* 1969 * In mesh mode, ASSOCIATED isn't part of the nl80211 1970 * API but must follow AUTHENTICATED for driver state. 1971 */ 1972 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1973 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1974 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1975 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1976 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1977 /* 1978 * TDLS -- everything follows authorized, but 1979 * only becoming authorized is possible, not 1980 * going back 1981 */ 1982 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1983 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1984 BIT(NL80211_STA_FLAG_ASSOCIATED); 1985 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1986 BIT(NL80211_STA_FLAG_ASSOCIATED); 1987 } 1988 } 1989 1990 if (mask & BIT(NL80211_STA_FLAG_WME) && 1991 local->hw.queues >= IEEE80211_NUM_ACS) 1992 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1993 1994 /* auth flags will be set later for TDLS, 1995 * and for unassociated stations that move to associated */ 1996 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1997 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1998 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1999 ret = sta_apply_auth_flags(local, sta, mask, set); 2000 if (ret) 2001 return ret; 2002 } 2003 2004 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2005 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2006 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2007 else 2008 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2009 } 2010 2011 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2012 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2013 if (set & BIT(NL80211_STA_FLAG_MFP)) 2014 set_sta_flag(sta, WLAN_STA_MFP); 2015 else 2016 clear_sta_flag(sta, WLAN_STA_MFP); 2017 } 2018 2019 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2020 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2021 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2022 else 2023 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2024 } 2025 2026 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2027 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2028 2029 /* mark TDLS channel switch support, if the AP allows it */ 2030 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2031 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2032 params->ext_capab_len >= 4 && 2033 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2034 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2035 2036 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2037 !sdata->u.mgd.tdls_wider_bw_prohibited && 2038 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2039 params->ext_capab_len >= 8 && 2040 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2041 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2042 2043 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2044 sta->sta.uapsd_queues = params->uapsd_queues; 2045 sta->sta.max_sp = params->max_sp; 2046 } 2047 2048 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2049 params->ext_capab_len); 2050 2051 /* 2052 * cfg80211 validates this (1-2007) and allows setting the AID 2053 * only when creating a new station entry 2054 */ 2055 if (params->aid) 2056 sta->sta.aid = params->aid; 2057 2058 /* 2059 * Some of the following updates would be racy if called on an 2060 * existing station, via ieee80211_change_station(). However, 2061 * all such changes are rejected by cfg80211 except for updates 2062 * changing the supported rates on an existing but not yet used 2063 * TDLS peer. 2064 */ 2065 2066 if (params->listen_interval >= 0) 2067 sta->listen_interval = params->listen_interval; 2068 2069 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2070 ¶ms->link_sta_params); 2071 if (ret) 2072 return ret; 2073 2074 if (params->support_p2p_ps >= 0) 2075 sta->sta.support_p2p_ps = params->support_p2p_ps; 2076 2077 if (ieee80211_vif_is_mesh(&sdata->vif)) 2078 sta_apply_mesh_params(local, sta, params); 2079 2080 if (params->airtime_weight) 2081 sta->airtime_weight = params->airtime_weight; 2082 2083 /* set the STA state after all sta info from usermode has been set */ 2084 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2085 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2086 ret = sta_apply_auth_flags(local, sta, mask, set); 2087 if (ret) 2088 return ret; 2089 } 2090 2091 /* Mark the STA as MLO if MLD MAC address is available */ 2092 if (params->link_sta_params.mld_mac) 2093 sta->sta.mlo = true; 2094 2095 return 0; 2096 } 2097 2098 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2099 const u8 *mac, 2100 struct station_parameters *params) 2101 { 2102 struct ieee80211_local *local = wiphy_priv(wiphy); 2103 struct sta_info *sta; 2104 struct ieee80211_sub_if_data *sdata; 2105 int err; 2106 2107 lockdep_assert_wiphy(local->hw.wiphy); 2108 2109 if (params->vlan) { 2110 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2111 2112 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2113 sdata->vif.type != NL80211_IFTYPE_AP) 2114 return -EINVAL; 2115 } else 2116 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2117 2118 if (ether_addr_equal(mac, sdata->vif.addr)) 2119 return -EINVAL; 2120 2121 if (!is_valid_ether_addr(mac)) 2122 return -EINVAL; 2123 2124 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2125 sdata->vif.type == NL80211_IFTYPE_STATION && 2126 !sdata->u.mgd.associated) 2127 return -EINVAL; 2128 2129 /* 2130 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2131 * but we need to have a link_mac in that case as well, so use the 2132 * STA's MAC address in that case. 2133 */ 2134 if (params->link_sta_params.link_id >= 0) 2135 sta = sta_info_alloc_with_link(sdata, mac, 2136 params->link_sta_params.link_id, 2137 params->link_sta_params.link_mac ?: mac, 2138 GFP_KERNEL); 2139 else 2140 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2141 2142 if (!sta) 2143 return -ENOMEM; 2144 2145 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2146 sta->sta.tdls = true; 2147 2148 /* Though the mutex is not needed here (since the station is not 2149 * visible yet), sta_apply_parameters (and inner functions) require 2150 * the mutex due to other paths. 2151 */ 2152 err = sta_apply_parameters(local, sta, params); 2153 if (err) { 2154 sta_info_free(local, sta); 2155 return err; 2156 } 2157 2158 /* 2159 * for TDLS and for unassociated station, rate control should be 2160 * initialized only when rates are known and station is marked 2161 * authorized/associated 2162 */ 2163 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2164 test_sta_flag(sta, WLAN_STA_ASSOC)) 2165 rate_control_rate_init_all_links(sta); 2166 2167 return sta_info_insert(sta); 2168 } 2169 2170 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2171 struct station_del_parameters *params) 2172 { 2173 struct ieee80211_sub_if_data *sdata; 2174 2175 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2176 2177 if (params->mac) 2178 return sta_info_destroy_addr_bss(sdata, params->mac); 2179 2180 sta_info_flush(sdata, params->link_id); 2181 return 0; 2182 } 2183 2184 static int ieee80211_change_station(struct wiphy *wiphy, 2185 struct net_device *dev, const u8 *mac, 2186 struct station_parameters *params) 2187 { 2188 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2189 struct ieee80211_local *local = wiphy_priv(wiphy); 2190 struct sta_info *sta; 2191 struct ieee80211_sub_if_data *vlansdata; 2192 enum cfg80211_station_type statype; 2193 int err; 2194 2195 lockdep_assert_wiphy(local->hw.wiphy); 2196 2197 sta = sta_info_get_bss(sdata, mac); 2198 if (!sta) 2199 return -ENOENT; 2200 2201 switch (sdata->vif.type) { 2202 case NL80211_IFTYPE_MESH_POINT: 2203 if (sdata->u.mesh.user_mpm) 2204 statype = CFG80211_STA_MESH_PEER_USER; 2205 else 2206 statype = CFG80211_STA_MESH_PEER_KERNEL; 2207 break; 2208 case NL80211_IFTYPE_ADHOC: 2209 statype = CFG80211_STA_IBSS; 2210 break; 2211 case NL80211_IFTYPE_STATION: 2212 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2213 statype = CFG80211_STA_AP_STA; 2214 break; 2215 } 2216 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2217 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2218 else 2219 statype = CFG80211_STA_TDLS_PEER_SETUP; 2220 break; 2221 case NL80211_IFTYPE_AP: 2222 case NL80211_IFTYPE_AP_VLAN: 2223 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2224 statype = CFG80211_STA_AP_CLIENT; 2225 else 2226 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2227 break; 2228 default: 2229 return -EOPNOTSUPP; 2230 } 2231 2232 err = cfg80211_check_station_change(wiphy, params, statype); 2233 if (err) 2234 return err; 2235 2236 if (params->vlan && params->vlan != sta->sdata->dev) { 2237 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2238 2239 if (params->vlan->ieee80211_ptr->use_4addr) { 2240 if (vlansdata->u.vlan.sta) 2241 return -EBUSY; 2242 2243 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2244 __ieee80211_check_fast_rx_iface(vlansdata); 2245 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2246 } 2247 2248 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2249 sta->sdata->u.vlan.sta) 2250 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2251 2252 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2253 ieee80211_vif_dec_num_mcast(sta->sdata); 2254 2255 sta->sdata = vlansdata; 2256 ieee80211_check_fast_rx(sta); 2257 ieee80211_check_fast_xmit(sta); 2258 2259 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2260 ieee80211_vif_inc_num_mcast(sta->sdata); 2261 cfg80211_send_layer2_update(sta->sdata->dev, 2262 sta->sta.addr); 2263 } 2264 } 2265 2266 err = sta_apply_parameters(local, sta, params); 2267 if (err) 2268 return err; 2269 2270 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2271 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2272 ieee80211_recalc_ps(local); 2273 ieee80211_recalc_ps_vif(sdata); 2274 } 2275 2276 return 0; 2277 } 2278 2279 #ifdef CONFIG_MAC80211_MESH 2280 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2281 const u8 *dst, const u8 *next_hop) 2282 { 2283 struct ieee80211_sub_if_data *sdata; 2284 struct mesh_path *mpath; 2285 struct sta_info *sta; 2286 2287 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2288 2289 rcu_read_lock(); 2290 sta = sta_info_get(sdata, next_hop); 2291 if (!sta) { 2292 rcu_read_unlock(); 2293 return -ENOENT; 2294 } 2295 2296 mpath = mesh_path_add(sdata, dst); 2297 if (IS_ERR(mpath)) { 2298 rcu_read_unlock(); 2299 return PTR_ERR(mpath); 2300 } 2301 2302 mesh_path_fix_nexthop(mpath, sta); 2303 2304 rcu_read_unlock(); 2305 return 0; 2306 } 2307 2308 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2309 const u8 *dst) 2310 { 2311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2312 2313 if (dst) 2314 return mesh_path_del(sdata, dst); 2315 2316 mesh_path_flush_by_iface(sdata); 2317 return 0; 2318 } 2319 2320 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2321 const u8 *dst, const u8 *next_hop) 2322 { 2323 struct ieee80211_sub_if_data *sdata; 2324 struct mesh_path *mpath; 2325 struct sta_info *sta; 2326 2327 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2328 2329 rcu_read_lock(); 2330 2331 sta = sta_info_get(sdata, next_hop); 2332 if (!sta) { 2333 rcu_read_unlock(); 2334 return -ENOENT; 2335 } 2336 2337 mpath = mesh_path_lookup(sdata, dst); 2338 if (!mpath) { 2339 rcu_read_unlock(); 2340 return -ENOENT; 2341 } 2342 2343 mesh_path_fix_nexthop(mpath, sta); 2344 2345 rcu_read_unlock(); 2346 return 0; 2347 } 2348 2349 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2350 struct mpath_info *pinfo) 2351 { 2352 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2353 2354 if (next_hop_sta) 2355 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2356 else 2357 eth_zero_addr(next_hop); 2358 2359 memset(pinfo, 0, sizeof(*pinfo)); 2360 2361 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2362 2363 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2364 MPATH_INFO_SN | 2365 MPATH_INFO_METRIC | 2366 MPATH_INFO_EXPTIME | 2367 MPATH_INFO_DISCOVERY_TIMEOUT | 2368 MPATH_INFO_DISCOVERY_RETRIES | 2369 MPATH_INFO_FLAGS | 2370 MPATH_INFO_HOP_COUNT | 2371 MPATH_INFO_PATH_CHANGE; 2372 2373 pinfo->frame_qlen = mpath->frame_queue.qlen; 2374 pinfo->sn = mpath->sn; 2375 pinfo->metric = mpath->metric; 2376 if (time_before(jiffies, mpath->exp_time)) 2377 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2378 pinfo->discovery_timeout = 2379 jiffies_to_msecs(mpath->discovery_timeout); 2380 pinfo->discovery_retries = mpath->discovery_retries; 2381 if (mpath->flags & MESH_PATH_ACTIVE) 2382 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2383 if (mpath->flags & MESH_PATH_RESOLVING) 2384 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2385 if (mpath->flags & MESH_PATH_SN_VALID) 2386 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2387 if (mpath->flags & MESH_PATH_FIXED) 2388 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2389 if (mpath->flags & MESH_PATH_RESOLVED) 2390 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2391 pinfo->hop_count = mpath->hop_count; 2392 pinfo->path_change_count = mpath->path_change_count; 2393 } 2394 2395 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2396 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2397 2398 { 2399 struct ieee80211_sub_if_data *sdata; 2400 struct mesh_path *mpath; 2401 2402 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2403 2404 rcu_read_lock(); 2405 mpath = mesh_path_lookup(sdata, dst); 2406 if (!mpath) { 2407 rcu_read_unlock(); 2408 return -ENOENT; 2409 } 2410 memcpy(dst, mpath->dst, ETH_ALEN); 2411 mpath_set_pinfo(mpath, next_hop, pinfo); 2412 rcu_read_unlock(); 2413 return 0; 2414 } 2415 2416 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2417 int idx, u8 *dst, u8 *next_hop, 2418 struct mpath_info *pinfo) 2419 { 2420 struct ieee80211_sub_if_data *sdata; 2421 struct mesh_path *mpath; 2422 2423 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2424 2425 rcu_read_lock(); 2426 mpath = mesh_path_lookup_by_idx(sdata, idx); 2427 if (!mpath) { 2428 rcu_read_unlock(); 2429 return -ENOENT; 2430 } 2431 memcpy(dst, mpath->dst, ETH_ALEN); 2432 mpath_set_pinfo(mpath, next_hop, pinfo); 2433 rcu_read_unlock(); 2434 return 0; 2435 } 2436 2437 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2438 struct mpath_info *pinfo) 2439 { 2440 memset(pinfo, 0, sizeof(*pinfo)); 2441 memcpy(mpp, mpath->mpp, ETH_ALEN); 2442 2443 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2444 } 2445 2446 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2447 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2448 2449 { 2450 struct ieee80211_sub_if_data *sdata; 2451 struct mesh_path *mpath; 2452 2453 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2454 2455 rcu_read_lock(); 2456 mpath = mpp_path_lookup(sdata, dst); 2457 if (!mpath) { 2458 rcu_read_unlock(); 2459 return -ENOENT; 2460 } 2461 memcpy(dst, mpath->dst, ETH_ALEN); 2462 mpp_set_pinfo(mpath, mpp, pinfo); 2463 rcu_read_unlock(); 2464 return 0; 2465 } 2466 2467 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2468 int idx, u8 *dst, u8 *mpp, 2469 struct mpath_info *pinfo) 2470 { 2471 struct ieee80211_sub_if_data *sdata; 2472 struct mesh_path *mpath; 2473 2474 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2475 2476 rcu_read_lock(); 2477 mpath = mpp_path_lookup_by_idx(sdata, idx); 2478 if (!mpath) { 2479 rcu_read_unlock(); 2480 return -ENOENT; 2481 } 2482 memcpy(dst, mpath->dst, ETH_ALEN); 2483 mpp_set_pinfo(mpath, mpp, pinfo); 2484 rcu_read_unlock(); 2485 return 0; 2486 } 2487 2488 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2489 struct net_device *dev, 2490 struct mesh_config *conf) 2491 { 2492 struct ieee80211_sub_if_data *sdata; 2493 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2494 2495 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2496 return 0; 2497 } 2498 2499 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2500 { 2501 return (mask >> (parm-1)) & 0x1; 2502 } 2503 2504 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2505 const struct mesh_setup *setup) 2506 { 2507 u8 *new_ie; 2508 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2509 struct ieee80211_sub_if_data, u.mesh); 2510 int i; 2511 2512 /* allocate information elements */ 2513 new_ie = NULL; 2514 2515 if (setup->ie_len) { 2516 new_ie = kmemdup(setup->ie, setup->ie_len, 2517 GFP_KERNEL); 2518 if (!new_ie) 2519 return -ENOMEM; 2520 } 2521 ifmsh->ie_len = setup->ie_len; 2522 ifmsh->ie = new_ie; 2523 2524 /* now copy the rest of the setup parameters */ 2525 ifmsh->mesh_id_len = setup->mesh_id_len; 2526 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2527 ifmsh->mesh_sp_id = setup->sync_method; 2528 ifmsh->mesh_pp_id = setup->path_sel_proto; 2529 ifmsh->mesh_pm_id = setup->path_metric; 2530 ifmsh->user_mpm = setup->user_mpm; 2531 ifmsh->mesh_auth_id = setup->auth_id; 2532 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2533 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2534 if (setup->is_authenticated) 2535 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2536 if (setup->is_secure) 2537 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2538 2539 /* mcast rate setting in Mesh Node */ 2540 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2541 sizeof(setup->mcast_rate)); 2542 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2543 2544 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2545 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2546 2547 sdata->beacon_rate_set = false; 2548 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2549 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2550 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2551 sdata->beacon_rateidx_mask[i] = 2552 setup->beacon_rate.control[i].legacy; 2553 if (sdata->beacon_rateidx_mask[i]) 2554 sdata->beacon_rate_set = true; 2555 } 2556 } 2557 2558 return 0; 2559 } 2560 2561 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2562 struct net_device *dev, u32 mask, 2563 const struct mesh_config *nconf) 2564 { 2565 struct mesh_config *conf; 2566 struct ieee80211_sub_if_data *sdata; 2567 struct ieee80211_if_mesh *ifmsh; 2568 2569 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2570 ifmsh = &sdata->u.mesh; 2571 2572 /* Set the config options which we are interested in setting */ 2573 conf = &(sdata->u.mesh.mshcfg); 2574 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2575 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2576 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2577 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2578 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2579 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2580 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2581 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2582 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2583 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2584 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2585 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2586 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2587 conf->element_ttl = nconf->element_ttl; 2588 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2589 if (ifmsh->user_mpm) 2590 return -EBUSY; 2591 conf->auto_open_plinks = nconf->auto_open_plinks; 2592 } 2593 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2594 conf->dot11MeshNbrOffsetMaxNeighbor = 2595 nconf->dot11MeshNbrOffsetMaxNeighbor; 2596 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2597 conf->dot11MeshHWMPmaxPREQretries = 2598 nconf->dot11MeshHWMPmaxPREQretries; 2599 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2600 conf->path_refresh_time = nconf->path_refresh_time; 2601 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2602 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2603 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2604 conf->dot11MeshHWMPactivePathTimeout = 2605 nconf->dot11MeshHWMPactivePathTimeout; 2606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2607 conf->dot11MeshHWMPpreqMinInterval = 2608 nconf->dot11MeshHWMPpreqMinInterval; 2609 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2610 conf->dot11MeshHWMPperrMinInterval = 2611 nconf->dot11MeshHWMPperrMinInterval; 2612 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2613 mask)) 2614 conf->dot11MeshHWMPnetDiameterTraversalTime = 2615 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2616 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2617 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2618 ieee80211_mesh_root_setup(ifmsh); 2619 } 2620 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2621 /* our current gate announcement implementation rides on root 2622 * announcements, so require this ifmsh to also be a root node 2623 * */ 2624 if (nconf->dot11MeshGateAnnouncementProtocol && 2625 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2626 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2627 ieee80211_mesh_root_setup(ifmsh); 2628 } 2629 conf->dot11MeshGateAnnouncementProtocol = 2630 nconf->dot11MeshGateAnnouncementProtocol; 2631 } 2632 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2633 conf->dot11MeshHWMPRannInterval = 2634 nconf->dot11MeshHWMPRannInterval; 2635 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2636 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2637 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2638 /* our RSSI threshold implementation is supported only for 2639 * devices that report signal in dBm. 2640 */ 2641 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2642 return -EOPNOTSUPP; 2643 conf->rssi_threshold = nconf->rssi_threshold; 2644 } 2645 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2646 conf->ht_opmode = nconf->ht_opmode; 2647 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2648 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2649 BSS_CHANGED_HT); 2650 } 2651 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2652 conf->dot11MeshHWMPactivePathToRootTimeout = 2653 nconf->dot11MeshHWMPactivePathToRootTimeout; 2654 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2655 conf->dot11MeshHWMProotInterval = 2656 nconf->dot11MeshHWMProotInterval; 2657 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2658 conf->dot11MeshHWMPconfirmationInterval = 2659 nconf->dot11MeshHWMPconfirmationInterval; 2660 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2661 conf->power_mode = nconf->power_mode; 2662 ieee80211_mps_local_status_update(sdata); 2663 } 2664 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2665 conf->dot11MeshAwakeWindowDuration = 2666 nconf->dot11MeshAwakeWindowDuration; 2667 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2668 conf->plink_timeout = nconf->plink_timeout; 2669 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2670 conf->dot11MeshConnectedToMeshGate = 2671 nconf->dot11MeshConnectedToMeshGate; 2672 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2673 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2674 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2675 conf->dot11MeshConnectedToAuthServer = 2676 nconf->dot11MeshConnectedToAuthServer; 2677 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2678 return 0; 2679 } 2680 2681 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2682 const struct mesh_config *conf, 2683 const struct mesh_setup *setup) 2684 { 2685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2686 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2687 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2688 int err; 2689 2690 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2691 2692 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2693 err = copy_mesh_setup(ifmsh, setup); 2694 if (err) 2695 return err; 2696 2697 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2698 2699 /* can mesh use other SMPS modes? */ 2700 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2701 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2702 2703 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2704 IEEE80211_CHANCTX_SHARED); 2705 if (err) 2706 return err; 2707 2708 return ieee80211_start_mesh(sdata); 2709 } 2710 2711 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2712 { 2713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2714 2715 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2716 2717 ieee80211_stop_mesh(sdata); 2718 ieee80211_link_release_channel(&sdata->deflink); 2719 kfree(sdata->u.mesh.ie); 2720 2721 return 0; 2722 } 2723 #endif 2724 2725 static int ieee80211_change_bss(struct wiphy *wiphy, 2726 struct net_device *dev, 2727 struct bss_parameters *params) 2728 { 2729 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2730 struct ieee80211_link_data *link; 2731 struct ieee80211_supported_band *sband; 2732 u64 changed = 0; 2733 2734 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2735 if (IS_ERR(link)) 2736 return PTR_ERR(link); 2737 2738 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2739 return -ENOENT; 2740 2741 sband = ieee80211_get_link_sband(link); 2742 if (!sband) 2743 return -EINVAL; 2744 2745 if (params->basic_rates) { 2746 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2747 wiphy->bands[sband->band], 2748 params->basic_rates, 2749 params->basic_rates_len, 2750 &link->conf->basic_rates)) 2751 return -EINVAL; 2752 changed |= BSS_CHANGED_BASIC_RATES; 2753 ieee80211_check_rate_mask(link); 2754 } 2755 2756 if (params->use_cts_prot >= 0) { 2757 link->conf->use_cts_prot = params->use_cts_prot; 2758 changed |= BSS_CHANGED_ERP_CTS_PROT; 2759 } 2760 if (params->use_short_preamble >= 0) { 2761 link->conf->use_short_preamble = params->use_short_preamble; 2762 changed |= BSS_CHANGED_ERP_PREAMBLE; 2763 } 2764 2765 if (!link->conf->use_short_slot && 2766 (sband->band == NL80211_BAND_5GHZ || 2767 sband->band == NL80211_BAND_6GHZ)) { 2768 link->conf->use_short_slot = true; 2769 changed |= BSS_CHANGED_ERP_SLOT; 2770 } 2771 2772 if (params->use_short_slot_time >= 0) { 2773 link->conf->use_short_slot = params->use_short_slot_time; 2774 changed |= BSS_CHANGED_ERP_SLOT; 2775 } 2776 2777 if (params->ap_isolate >= 0) { 2778 if (params->ap_isolate) 2779 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2780 else 2781 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2782 ieee80211_check_fast_rx_iface(sdata); 2783 } 2784 2785 if (params->ht_opmode >= 0) { 2786 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2787 changed |= BSS_CHANGED_HT; 2788 } 2789 2790 if (params->p2p_ctwindow >= 0) { 2791 link->conf->p2p_noa_attr.oppps_ctwindow &= 2792 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2793 link->conf->p2p_noa_attr.oppps_ctwindow |= 2794 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2795 changed |= BSS_CHANGED_P2P_PS; 2796 } 2797 2798 if (params->p2p_opp_ps > 0) { 2799 link->conf->p2p_noa_attr.oppps_ctwindow |= 2800 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2801 changed |= BSS_CHANGED_P2P_PS; 2802 } else if (params->p2p_opp_ps == 0) { 2803 link->conf->p2p_noa_attr.oppps_ctwindow &= 2804 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2805 changed |= BSS_CHANGED_P2P_PS; 2806 } 2807 2808 ieee80211_link_info_change_notify(sdata, link, changed); 2809 2810 return 0; 2811 } 2812 2813 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2814 struct net_device *dev, 2815 struct ieee80211_txq_params *params) 2816 { 2817 struct ieee80211_local *local = wiphy_priv(wiphy); 2818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2819 struct ieee80211_link_data *link = 2820 ieee80211_link_or_deflink(sdata, params->link_id, true); 2821 struct ieee80211_tx_queue_params p; 2822 2823 if (!local->ops->conf_tx) 2824 return -EOPNOTSUPP; 2825 2826 if (local->hw.queues < IEEE80211_NUM_ACS) 2827 return -EOPNOTSUPP; 2828 2829 if (IS_ERR(link)) 2830 return PTR_ERR(link); 2831 2832 memset(&p, 0, sizeof(p)); 2833 p.aifs = params->aifs; 2834 p.cw_max = params->cwmax; 2835 p.cw_min = params->cwmin; 2836 p.txop = params->txop; 2837 2838 /* 2839 * Setting tx queue params disables u-apsd because it's only 2840 * called in master mode. 2841 */ 2842 p.uapsd = false; 2843 2844 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2845 2846 link->tx_conf[params->ac] = p; 2847 if (drv_conf_tx(local, link, params->ac, &p)) { 2848 wiphy_debug(local->hw.wiphy, 2849 "failed to set TX queue parameters for AC %d\n", 2850 params->ac); 2851 return -EINVAL; 2852 } 2853 2854 ieee80211_link_info_change_notify(sdata, link, 2855 BSS_CHANGED_QOS); 2856 2857 return 0; 2858 } 2859 2860 #ifdef CONFIG_PM 2861 static int ieee80211_suspend(struct wiphy *wiphy, 2862 struct cfg80211_wowlan *wowlan) 2863 { 2864 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2865 } 2866 2867 static int ieee80211_resume(struct wiphy *wiphy) 2868 { 2869 return __ieee80211_resume(wiphy_priv(wiphy)); 2870 } 2871 #else 2872 #define ieee80211_suspend NULL 2873 #define ieee80211_resume NULL 2874 #endif 2875 2876 static int ieee80211_scan(struct wiphy *wiphy, 2877 struct cfg80211_scan_request *req) 2878 { 2879 struct ieee80211_sub_if_data *sdata; 2880 2881 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2882 2883 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2884 case NL80211_IFTYPE_STATION: 2885 case NL80211_IFTYPE_ADHOC: 2886 case NL80211_IFTYPE_MESH_POINT: 2887 case NL80211_IFTYPE_P2P_CLIENT: 2888 case NL80211_IFTYPE_P2P_DEVICE: 2889 break; 2890 case NL80211_IFTYPE_P2P_GO: 2891 if (sdata->local->ops->hw_scan) 2892 break; 2893 /* 2894 * FIXME: implement NoA while scanning in software, 2895 * for now fall through to allow scanning only when 2896 * beaconing hasn't been configured yet 2897 */ 2898 fallthrough; 2899 case NL80211_IFTYPE_AP: 2900 /* 2901 * If the scan has been forced (and the driver supports 2902 * forcing), don't care about being beaconing already. 2903 * This will create problems to the attached stations (e.g. all 2904 * the frames sent while scanning on other channel will be 2905 * lost) 2906 */ 2907 if (sdata->deflink.u.ap.beacon && 2908 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2909 !(req->flags & NL80211_SCAN_FLAG_AP))) 2910 return -EOPNOTSUPP; 2911 break; 2912 case NL80211_IFTYPE_NAN: 2913 default: 2914 return -EOPNOTSUPP; 2915 } 2916 2917 return ieee80211_request_scan(sdata, req); 2918 } 2919 2920 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2921 { 2922 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2923 } 2924 2925 static int 2926 ieee80211_sched_scan_start(struct wiphy *wiphy, 2927 struct net_device *dev, 2928 struct cfg80211_sched_scan_request *req) 2929 { 2930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2931 2932 if (!sdata->local->ops->sched_scan_start) 2933 return -EOPNOTSUPP; 2934 2935 return ieee80211_request_sched_scan_start(sdata, req); 2936 } 2937 2938 static int 2939 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2940 u64 reqid) 2941 { 2942 struct ieee80211_local *local = wiphy_priv(wiphy); 2943 2944 if (!local->ops->sched_scan_stop) 2945 return -EOPNOTSUPP; 2946 2947 return ieee80211_request_sched_scan_stop(local); 2948 } 2949 2950 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2951 struct cfg80211_auth_request *req) 2952 { 2953 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2954 } 2955 2956 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2957 struct cfg80211_assoc_request *req) 2958 { 2959 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2960 } 2961 2962 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2963 struct cfg80211_deauth_request *req) 2964 { 2965 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2966 } 2967 2968 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2969 struct cfg80211_disassoc_request *req) 2970 { 2971 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2972 } 2973 2974 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2975 struct cfg80211_ibss_params *params) 2976 { 2977 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2978 } 2979 2980 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2981 { 2982 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2983 } 2984 2985 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2986 struct ocb_setup *setup) 2987 { 2988 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2989 } 2990 2991 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2992 { 2993 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2994 } 2995 2996 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2997 int rate[NUM_NL80211_BANDS]) 2998 { 2999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3000 3001 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3002 sizeof(int) * NUM_NL80211_BANDS); 3003 3004 if (ieee80211_sdata_running(sdata)) 3005 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3006 BSS_CHANGED_MCAST_RATE); 3007 3008 return 0; 3009 } 3010 3011 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 3012 { 3013 struct ieee80211_local *local = wiphy_priv(wiphy); 3014 int err; 3015 3016 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3017 ieee80211_check_fast_xmit_all(local); 3018 3019 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 3020 3021 if (err) { 3022 ieee80211_check_fast_xmit_all(local); 3023 return err; 3024 } 3025 } 3026 3027 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3028 (changed & WIPHY_PARAM_DYN_ACK)) { 3029 s16 coverage_class; 3030 3031 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3032 wiphy->coverage_class : -1; 3033 err = drv_set_coverage_class(local, coverage_class); 3034 3035 if (err) 3036 return err; 3037 } 3038 3039 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3040 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 3041 3042 if (err) 3043 return err; 3044 } 3045 3046 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3047 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3048 return -EINVAL; 3049 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3050 } 3051 if (changed & WIPHY_PARAM_RETRY_LONG) { 3052 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3053 return -EINVAL; 3054 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3055 } 3056 if (changed & 3057 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3058 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3059 3060 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3061 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3062 WIPHY_PARAM_TXQ_QUANTUM)) 3063 ieee80211_txq_set_params(local); 3064 3065 return 0; 3066 } 3067 3068 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3069 struct wireless_dev *wdev, 3070 enum nl80211_tx_power_setting type, int mbm) 3071 { 3072 struct ieee80211_local *local = wiphy_priv(wiphy); 3073 struct ieee80211_sub_if_data *sdata; 3074 enum nl80211_tx_power_setting txp_type = type; 3075 bool update_txp_type = false; 3076 bool has_monitor = false; 3077 int user_power_level; 3078 int old_power = local->user_power_level; 3079 3080 lockdep_assert_wiphy(local->hw.wiphy); 3081 3082 switch (type) { 3083 case NL80211_TX_POWER_AUTOMATIC: 3084 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3085 txp_type = NL80211_TX_POWER_LIMITED; 3086 break; 3087 case NL80211_TX_POWER_LIMITED: 3088 case NL80211_TX_POWER_FIXED: 3089 if (mbm < 0 || (mbm % 100)) 3090 return -EOPNOTSUPP; 3091 user_power_level = MBM_TO_DBM(mbm); 3092 break; 3093 default: 3094 return -EINVAL; 3095 } 3096 3097 if (wdev) { 3098 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3099 3100 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3101 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3102 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3103 return -EOPNOTSUPP; 3104 3105 sdata = wiphy_dereference(local->hw.wiphy, 3106 local->monitor_sdata); 3107 if (!sdata) 3108 return -EOPNOTSUPP; 3109 } 3110 3111 for (int link_id = 0; 3112 link_id < ARRAY_SIZE(sdata->link); 3113 link_id++) { 3114 struct ieee80211_link_data *link = 3115 wiphy_dereference(wiphy, sdata->link[link_id]); 3116 3117 if (!link) 3118 continue; 3119 3120 link->user_power_level = user_power_level; 3121 3122 if (txp_type != link->conf->txpower_type) { 3123 update_txp_type = true; 3124 link->conf->txpower_type = txp_type; 3125 } 3126 3127 ieee80211_recalc_txpower(link, update_txp_type); 3128 } 3129 return 0; 3130 } 3131 3132 local->user_power_level = user_power_level; 3133 3134 list_for_each_entry(sdata, &local->interfaces, list) { 3135 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3136 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3137 has_monitor = true; 3138 continue; 3139 } 3140 3141 for (int link_id = 0; 3142 link_id < ARRAY_SIZE(sdata->link); 3143 link_id++) { 3144 struct ieee80211_link_data *link = 3145 wiphy_dereference(wiphy, sdata->link[link_id]); 3146 3147 if (!link) 3148 continue; 3149 3150 link->user_power_level = local->user_power_level; 3151 if (txp_type != link->conf->txpower_type) 3152 update_txp_type = true; 3153 link->conf->txpower_type = txp_type; 3154 } 3155 } 3156 list_for_each_entry(sdata, &local->interfaces, list) { 3157 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3158 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3159 continue; 3160 3161 for (int link_id = 0; 3162 link_id < ARRAY_SIZE(sdata->link); 3163 link_id++) { 3164 struct ieee80211_link_data *link = 3165 wiphy_dereference(wiphy, sdata->link[link_id]); 3166 3167 if (!link) 3168 continue; 3169 3170 ieee80211_recalc_txpower(link, update_txp_type); 3171 } 3172 } 3173 3174 if (has_monitor) { 3175 sdata = wiphy_dereference(local->hw.wiphy, 3176 local->monitor_sdata); 3177 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3178 sdata->deflink.user_power_level = local->user_power_level; 3179 if (txp_type != sdata->vif.bss_conf.txpower_type) 3180 update_txp_type = true; 3181 sdata->vif.bss_conf.txpower_type = txp_type; 3182 3183 ieee80211_recalc_txpower(&sdata->deflink, 3184 update_txp_type); 3185 } 3186 } 3187 3188 if (local->emulate_chanctx && 3189 (old_power != local->user_power_level)) 3190 ieee80211_hw_conf_chan(local); 3191 3192 return 0; 3193 } 3194 3195 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3196 struct wireless_dev *wdev, 3197 unsigned int link_id, 3198 int *dbm) 3199 { 3200 struct ieee80211_local *local = wiphy_priv(wiphy); 3201 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3202 struct ieee80211_link_data *link_data; 3203 3204 if (local->ops->get_txpower && 3205 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3206 return drv_get_txpower(local, sdata, link_id, dbm); 3207 3208 if (local->emulate_chanctx) { 3209 *dbm = local->hw.conf.power_level; 3210 } else { 3211 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3212 3213 if (link_data) 3214 *dbm = link_data->conf->txpower; 3215 else 3216 return -ENOLINK; 3217 } 3218 3219 /* INT_MIN indicates no power level was set yet */ 3220 if (*dbm == INT_MIN) 3221 return -EINVAL; 3222 3223 return 0; 3224 } 3225 3226 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3227 { 3228 struct ieee80211_local *local = wiphy_priv(wiphy); 3229 3230 drv_rfkill_poll(local); 3231 } 3232 3233 #ifdef CONFIG_NL80211_TESTMODE 3234 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3235 struct wireless_dev *wdev, 3236 void *data, int len) 3237 { 3238 struct ieee80211_local *local = wiphy_priv(wiphy); 3239 struct ieee80211_vif *vif = NULL; 3240 3241 if (!local->ops->testmode_cmd) 3242 return -EOPNOTSUPP; 3243 3244 if (wdev) { 3245 struct ieee80211_sub_if_data *sdata; 3246 3247 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3248 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3249 vif = &sdata->vif; 3250 } 3251 3252 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3253 } 3254 3255 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3256 struct sk_buff *skb, 3257 struct netlink_callback *cb, 3258 void *data, int len) 3259 { 3260 struct ieee80211_local *local = wiphy_priv(wiphy); 3261 3262 if (!local->ops->testmode_dump) 3263 return -EOPNOTSUPP; 3264 3265 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3266 } 3267 #endif 3268 3269 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3270 struct ieee80211_link_data *link, 3271 enum ieee80211_smps_mode smps_mode) 3272 { 3273 const u8 *ap; 3274 enum ieee80211_smps_mode old_req; 3275 int err; 3276 struct sta_info *sta; 3277 bool tdls_peer_found = false; 3278 3279 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3280 3281 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3282 return -EINVAL; 3283 3284 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3285 return 0; 3286 3287 old_req = link->u.mgd.req_smps; 3288 link->u.mgd.req_smps = smps_mode; 3289 3290 /* The driver indicated that EML is enabled for the interface, which 3291 * implies that SMPS flows towards the AP should be stopped. 3292 */ 3293 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3294 return 0; 3295 3296 if (old_req == smps_mode && 3297 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3298 return 0; 3299 3300 /* 3301 * If not associated, or current association is not an HT 3302 * association, there's no need to do anything, just store 3303 * the new value until we associate. 3304 */ 3305 if (!sdata->u.mgd.associated || 3306 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3307 return 0; 3308 3309 ap = sdata->vif.cfg.ap_addr; 3310 3311 rcu_read_lock(); 3312 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3313 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3314 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3315 continue; 3316 3317 tdls_peer_found = true; 3318 break; 3319 } 3320 rcu_read_unlock(); 3321 3322 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3323 if (tdls_peer_found || !sdata->u.mgd.powersave) 3324 smps_mode = IEEE80211_SMPS_OFF; 3325 else 3326 smps_mode = IEEE80211_SMPS_DYNAMIC; 3327 } 3328 3329 /* send SM PS frame to AP */ 3330 err = ieee80211_send_smps_action(sdata, smps_mode, 3331 ap, ap, 3332 ieee80211_vif_is_mld(&sdata->vif) ? 3333 link->link_id : -1); 3334 if (err) 3335 link->u.mgd.req_smps = old_req; 3336 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3337 ieee80211_teardown_tdls_peers(link); 3338 3339 return err; 3340 } 3341 3342 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3343 bool enabled, int timeout) 3344 { 3345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3346 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3347 unsigned int link_id; 3348 3349 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3350 return -EOPNOTSUPP; 3351 3352 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3353 return -EOPNOTSUPP; 3354 3355 if (enabled == sdata->u.mgd.powersave && 3356 timeout == local->dynamic_ps_forced_timeout) 3357 return 0; 3358 3359 sdata->u.mgd.powersave = enabled; 3360 local->dynamic_ps_forced_timeout = timeout; 3361 3362 /* no change, but if automatic follow powersave */ 3363 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3364 struct ieee80211_link_data *link; 3365 3366 link = sdata_dereference(sdata->link[link_id], sdata); 3367 3368 if (!link) 3369 continue; 3370 __ieee80211_request_smps_mgd(sdata, link, 3371 link->u.mgd.req_smps); 3372 } 3373 3374 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3375 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3376 3377 ieee80211_recalc_ps(local); 3378 ieee80211_recalc_ps_vif(sdata); 3379 ieee80211_check_fast_rx_iface(sdata); 3380 3381 return 0; 3382 } 3383 3384 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3385 struct ieee80211_link_data *link, 3386 s32 rssi_thold, u32 rssi_hyst, 3387 s32 rssi_low, s32 rssi_high) 3388 { 3389 struct ieee80211_bss_conf *conf; 3390 3391 if (!link || !link->conf) 3392 return; 3393 3394 conf = link->conf; 3395 3396 if (rssi_thold && rssi_hyst && 3397 rssi_thold == conf->cqm_rssi_thold && 3398 rssi_hyst == conf->cqm_rssi_hyst) 3399 return; 3400 3401 conf->cqm_rssi_thold = rssi_thold; 3402 conf->cqm_rssi_hyst = rssi_hyst; 3403 conf->cqm_rssi_low = rssi_low; 3404 conf->cqm_rssi_high = rssi_high; 3405 link->u.mgd.last_cqm_event_signal = 0; 3406 3407 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3408 return; 3409 3410 if (sdata->u.mgd.associated && 3411 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3412 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3413 } 3414 3415 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3416 struct net_device *dev, 3417 s32 rssi_thold, u32 rssi_hyst) 3418 { 3419 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3420 struct ieee80211_vif *vif = &sdata->vif; 3421 int link_id; 3422 3423 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3424 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3425 return -EOPNOTSUPP; 3426 3427 /* For MLD, handle CQM change on all the active links */ 3428 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3429 struct ieee80211_link_data *link = 3430 sdata_dereference(sdata->link[link_id], sdata); 3431 3432 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3433 0, 0); 3434 } 3435 3436 return 0; 3437 } 3438 3439 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3440 struct net_device *dev, 3441 s32 rssi_low, s32 rssi_high) 3442 { 3443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3444 struct ieee80211_vif *vif = &sdata->vif; 3445 int link_id; 3446 3447 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3448 return -EOPNOTSUPP; 3449 3450 /* For MLD, handle CQM change on all the active links */ 3451 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3452 struct ieee80211_link_data *link = 3453 sdata_dereference(sdata->link[link_id], sdata); 3454 3455 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3456 rssi_low, rssi_high); 3457 } 3458 3459 return 0; 3460 } 3461 3462 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3463 struct net_device *dev, 3464 unsigned int link_id, 3465 const u8 *addr, 3466 const struct cfg80211_bitrate_mask *mask) 3467 { 3468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3469 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3470 int i, ret; 3471 3472 if (!ieee80211_sdata_running(sdata)) 3473 return -ENETDOWN; 3474 3475 /* 3476 * If active validate the setting and reject it if it doesn't leave 3477 * at least one basic rate usable, since we really have to be able 3478 * to send something, and if we're an AP we have to be able to do 3479 * so at a basic rate so that all clients can receive it. 3480 */ 3481 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3482 sdata->vif.bss_conf.chanreq.oper.chan) { 3483 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3484 enum nl80211_band band; 3485 3486 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3487 3488 if (!(mask->control[band].legacy & basic_rates)) 3489 return -EINVAL; 3490 } 3491 3492 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3493 ret = drv_set_bitrate_mask(local, sdata, mask); 3494 if (ret) 3495 return ret; 3496 } 3497 3498 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3499 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3500 int j; 3501 3502 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3503 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3504 sizeof(mask->control[i].ht_mcs)); 3505 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3506 mask->control[i].vht_mcs, 3507 sizeof(mask->control[i].vht_mcs)); 3508 3509 sdata->rc_has_mcs_mask[i] = false; 3510 sdata->rc_has_vht_mcs_mask[i] = false; 3511 if (!sband) 3512 continue; 3513 3514 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3515 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3516 sdata->rc_has_mcs_mask[i] = true; 3517 break; 3518 } 3519 } 3520 3521 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3522 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3523 sdata->rc_has_vht_mcs_mask[i] = true; 3524 break; 3525 } 3526 } 3527 } 3528 3529 return 0; 3530 } 3531 3532 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3533 struct net_device *dev, 3534 struct cfg80211_chan_def *chandef, 3535 u32 cac_time_ms, int link_id) 3536 { 3537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3538 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3539 struct ieee80211_local *local = sdata->local; 3540 struct ieee80211_link_data *link_data; 3541 int err; 3542 3543 lockdep_assert_wiphy(local->hw.wiphy); 3544 3545 if (!list_empty(&local->roc_list) || local->scanning) 3546 return -EBUSY; 3547 3548 link_data = sdata_dereference(sdata->link[link_id], sdata); 3549 if (!link_data) 3550 return -ENOLINK; 3551 3552 /* whatever, but channel contexts should not complain about that one */ 3553 link_data->smps_mode = IEEE80211_SMPS_OFF; 3554 link_data->needed_rx_chains = local->rx_chains; 3555 3556 err = ieee80211_link_use_channel(link_data, &chanreq, 3557 IEEE80211_CHANCTX_SHARED); 3558 if (err) 3559 return err; 3560 3561 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3562 msecs_to_jiffies(cac_time_ms)); 3563 3564 return 0; 3565 } 3566 3567 static void ieee80211_end_cac(struct wiphy *wiphy, 3568 struct net_device *dev, unsigned int link_id) 3569 { 3570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3571 struct ieee80211_local *local = sdata->local; 3572 struct ieee80211_link_data *link_data; 3573 3574 lockdep_assert_wiphy(local->hw.wiphy); 3575 3576 list_for_each_entry(sdata, &local->interfaces, list) { 3577 link_data = sdata_dereference(sdata->link[link_id], sdata); 3578 if (!link_data) 3579 continue; 3580 3581 wiphy_delayed_work_cancel(wiphy, 3582 &link_data->dfs_cac_timer_work); 3583 3584 if (sdata->wdev.links[link_id].cac_started) { 3585 ieee80211_link_release_channel(link_data); 3586 sdata->wdev.links[link_id].cac_started = false; 3587 } 3588 } 3589 } 3590 3591 static struct cfg80211_beacon_data * 3592 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3593 { 3594 struct cfg80211_beacon_data *new_beacon; 3595 u8 *pos; 3596 int len; 3597 3598 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3599 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3600 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3601 3602 if (beacon->mbssid_ies) 3603 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3604 beacon->rnr_ies, 3605 beacon->mbssid_ies->cnt); 3606 3607 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3608 if (!new_beacon) 3609 return NULL; 3610 3611 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3612 new_beacon->mbssid_ies = 3613 kzalloc(struct_size(new_beacon->mbssid_ies, 3614 elem, beacon->mbssid_ies->cnt), 3615 GFP_KERNEL); 3616 if (!new_beacon->mbssid_ies) { 3617 kfree(new_beacon); 3618 return NULL; 3619 } 3620 3621 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3622 new_beacon->rnr_ies = 3623 kzalloc(struct_size(new_beacon->rnr_ies, 3624 elem, beacon->rnr_ies->cnt), 3625 GFP_KERNEL); 3626 if (!new_beacon->rnr_ies) { 3627 kfree(new_beacon->mbssid_ies); 3628 kfree(new_beacon); 3629 return NULL; 3630 } 3631 } 3632 } 3633 3634 pos = (u8 *)(new_beacon + 1); 3635 if (beacon->head_len) { 3636 new_beacon->head_len = beacon->head_len; 3637 new_beacon->head = pos; 3638 memcpy(pos, beacon->head, beacon->head_len); 3639 pos += beacon->head_len; 3640 } 3641 if (beacon->tail_len) { 3642 new_beacon->tail_len = beacon->tail_len; 3643 new_beacon->tail = pos; 3644 memcpy(pos, beacon->tail, beacon->tail_len); 3645 pos += beacon->tail_len; 3646 } 3647 if (beacon->beacon_ies_len) { 3648 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3649 new_beacon->beacon_ies = pos; 3650 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3651 pos += beacon->beacon_ies_len; 3652 } 3653 if (beacon->proberesp_ies_len) { 3654 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3655 new_beacon->proberesp_ies = pos; 3656 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3657 pos += beacon->proberesp_ies_len; 3658 } 3659 if (beacon->assocresp_ies_len) { 3660 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3661 new_beacon->assocresp_ies = pos; 3662 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3663 pos += beacon->assocresp_ies_len; 3664 } 3665 if (beacon->probe_resp_len) { 3666 new_beacon->probe_resp_len = beacon->probe_resp_len; 3667 new_beacon->probe_resp = pos; 3668 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3669 pos += beacon->probe_resp_len; 3670 } 3671 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3672 pos += ieee80211_copy_mbssid_beacon(pos, 3673 new_beacon->mbssid_ies, 3674 beacon->mbssid_ies); 3675 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3676 pos += ieee80211_copy_rnr_beacon(pos, 3677 new_beacon->rnr_ies, 3678 beacon->rnr_ies); 3679 } 3680 3681 /* might copy -1, meaning no changes requested */ 3682 new_beacon->ftm_responder = beacon->ftm_responder; 3683 if (beacon->lci) { 3684 new_beacon->lci_len = beacon->lci_len; 3685 new_beacon->lci = pos; 3686 memcpy(pos, beacon->lci, beacon->lci_len); 3687 pos += beacon->lci_len; 3688 } 3689 if (beacon->civicloc) { 3690 new_beacon->civicloc_len = beacon->civicloc_len; 3691 new_beacon->civicloc = pos; 3692 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3693 pos += beacon->civicloc_len; 3694 } 3695 3696 return new_beacon; 3697 } 3698 3699 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3700 { 3701 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3702 struct ieee80211_local *local = sdata->local; 3703 struct ieee80211_link_data *link_data; 3704 3705 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3706 return; 3707 3708 rcu_read_lock(); 3709 3710 link_data = rcu_dereference(sdata->link[link_id]); 3711 if (WARN_ON(!link_data)) { 3712 rcu_read_unlock(); 3713 return; 3714 } 3715 3716 /* TODO: MBSSID with MLO changes */ 3717 if (vif->mbssid_tx_vif == vif) { 3718 /* Trigger ieee80211_csa_finish() on the non-transmitting 3719 * interfaces when channel switch is received on 3720 * transmitting interface 3721 */ 3722 struct ieee80211_sub_if_data *iter; 3723 3724 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3725 if (!ieee80211_sdata_running(iter)) 3726 continue; 3727 3728 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3729 continue; 3730 3731 wiphy_work_queue(iter->local->hw.wiphy, 3732 &iter->deflink.csa.finalize_work); 3733 } 3734 } 3735 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 3736 3737 rcu_read_unlock(); 3738 } 3739 EXPORT_SYMBOL(ieee80211_csa_finish); 3740 3741 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 3742 { 3743 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3744 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3745 struct ieee80211_local *local = sdata->local; 3746 3747 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3748 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3749 } 3750 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3751 3752 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3753 u64 *changed) 3754 { 3755 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3756 int err; 3757 3758 switch (sdata->vif.type) { 3759 case NL80211_IFTYPE_AP: 3760 if (!link_data->u.ap.next_beacon) 3761 return -EINVAL; 3762 3763 err = ieee80211_assign_beacon(sdata, link_data, 3764 link_data->u.ap.next_beacon, 3765 NULL, NULL, changed); 3766 ieee80211_free_next_beacon(link_data); 3767 3768 if (err < 0) 3769 return err; 3770 break; 3771 case NL80211_IFTYPE_ADHOC: 3772 err = ieee80211_ibss_finish_csa(sdata, changed); 3773 if (err < 0) 3774 return err; 3775 break; 3776 #ifdef CONFIG_MAC80211_MESH 3777 case NL80211_IFTYPE_MESH_POINT: 3778 err = ieee80211_mesh_finish_csa(sdata, changed); 3779 if (err < 0) 3780 return err; 3781 break; 3782 #endif 3783 default: 3784 WARN_ON(1); 3785 return -EINVAL; 3786 } 3787 3788 return 0; 3789 } 3790 3791 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3792 { 3793 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3794 struct ieee80211_local *local = sdata->local; 3795 struct ieee80211_bss_conf *link_conf = link_data->conf; 3796 u64 changed = 0; 3797 int err; 3798 3799 lockdep_assert_wiphy(local->hw.wiphy); 3800 3801 /* 3802 * using reservation isn't immediate as it may be deferred until later 3803 * with multi-vif. once reservation is complete it will re-schedule the 3804 * work with no reserved_chanctx so verify chandef to check if it 3805 * completed successfully 3806 */ 3807 3808 if (link_data->reserved_chanctx) { 3809 /* 3810 * with multi-vif csa driver may call ieee80211_csa_finish() 3811 * many times while waiting for other interfaces to use their 3812 * reservations 3813 */ 3814 if (link_data->reserved_ready) 3815 return 0; 3816 3817 return ieee80211_link_use_reserved_context(link_data); 3818 } 3819 3820 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3821 &link_data->csa.chanreq.oper)) 3822 return -EINVAL; 3823 3824 link_conf->csa_active = false; 3825 3826 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3827 if (err) 3828 return err; 3829 3830 ieee80211_link_info_change_notify(sdata, link_data, changed); 3831 3832 ieee80211_vif_unblock_queues_csa(sdata); 3833 3834 err = drv_post_channel_switch(link_data); 3835 if (err) 3836 return err; 3837 3838 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 3839 link_data->link_id); 3840 3841 return 0; 3842 } 3843 3844 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3845 { 3846 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3847 3848 if (__ieee80211_csa_finalize(link_data)) { 3849 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3850 link_data->link_id); 3851 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3852 GFP_KERNEL); 3853 } 3854 } 3855 3856 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3857 { 3858 struct ieee80211_link_data *link = 3859 container_of(work, struct ieee80211_link_data, csa.finalize_work); 3860 struct ieee80211_sub_if_data *sdata = link->sdata; 3861 struct ieee80211_local *local = sdata->local; 3862 3863 lockdep_assert_wiphy(local->hw.wiphy); 3864 3865 /* AP might have been stopped while waiting for the lock. */ 3866 if (!link->conf->csa_active) 3867 return; 3868 3869 if (!ieee80211_sdata_running(sdata)) 3870 return; 3871 3872 ieee80211_csa_finalize(link); 3873 } 3874 3875 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3876 struct cfg80211_csa_settings *params, 3877 u64 *changed) 3878 { 3879 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3880 struct ieee80211_csa_settings csa = {}; 3881 int err; 3882 3883 switch (sdata->vif.type) { 3884 case NL80211_IFTYPE_AP: 3885 link_data->u.ap.next_beacon = 3886 cfg80211_beacon_dup(¶ms->beacon_after); 3887 if (!link_data->u.ap.next_beacon) 3888 return -ENOMEM; 3889 3890 /* 3891 * With a count of 0, we don't have to wait for any 3892 * TBTT before switching, so complete the CSA 3893 * immediately. In theory, with a count == 1 we 3894 * should delay the switch until just before the next 3895 * TBTT, but that would complicate things so we switch 3896 * immediately too. If we would delay the switch 3897 * until the next TBTT, we would have to set the probe 3898 * response here. 3899 * 3900 * TODO: A channel switch with count <= 1 without 3901 * sending a CSA action frame is kind of useless, 3902 * because the clients won't know we're changing 3903 * channels. The action frame must be implemented 3904 * either here or in the userspace. 3905 */ 3906 if (params->count <= 1) 3907 break; 3908 3909 if ((params->n_counter_offsets_beacon > 3910 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3911 (params->n_counter_offsets_presp > 3912 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3913 ieee80211_free_next_beacon(link_data); 3914 return -EINVAL; 3915 } 3916 3917 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3918 csa.counter_offsets_presp = params->counter_offsets_presp; 3919 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3920 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3921 csa.count = params->count; 3922 3923 err = ieee80211_assign_beacon(sdata, link_data, 3924 ¶ms->beacon_csa, &csa, 3925 NULL, changed); 3926 if (err < 0) { 3927 ieee80211_free_next_beacon(link_data); 3928 return err; 3929 } 3930 3931 break; 3932 case NL80211_IFTYPE_ADHOC: 3933 if (!sdata->vif.cfg.ibss_joined) 3934 return -EINVAL; 3935 3936 if (params->chandef.width != sdata->u.ibss.chandef.width) 3937 return -EINVAL; 3938 3939 switch (params->chandef.width) { 3940 case NL80211_CHAN_WIDTH_40: 3941 if (cfg80211_get_chandef_type(¶ms->chandef) != 3942 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3943 return -EINVAL; 3944 break; 3945 case NL80211_CHAN_WIDTH_5: 3946 case NL80211_CHAN_WIDTH_10: 3947 case NL80211_CHAN_WIDTH_20_NOHT: 3948 case NL80211_CHAN_WIDTH_20: 3949 break; 3950 default: 3951 return -EINVAL; 3952 } 3953 3954 /* changes into another band are not supported */ 3955 if (sdata->u.ibss.chandef.chan->band != 3956 params->chandef.chan->band) 3957 return -EINVAL; 3958 3959 /* see comments in the NL80211_IFTYPE_AP block */ 3960 if (params->count > 1) { 3961 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3962 if (err < 0) 3963 return err; 3964 } 3965 3966 ieee80211_send_action_csa(sdata, params); 3967 3968 break; 3969 #ifdef CONFIG_MAC80211_MESH 3970 case NL80211_IFTYPE_MESH_POINT: { 3971 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3972 3973 /* changes into another band are not supported */ 3974 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3975 params->chandef.chan->band) 3976 return -EINVAL; 3977 3978 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3979 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3980 if (!ifmsh->pre_value) 3981 ifmsh->pre_value = 1; 3982 else 3983 ifmsh->pre_value++; 3984 } 3985 3986 /* see comments in the NL80211_IFTYPE_AP block */ 3987 if (params->count > 1) { 3988 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3989 if (err < 0) { 3990 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3991 return err; 3992 } 3993 } 3994 3995 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3996 ieee80211_send_action_csa(sdata, params); 3997 3998 break; 3999 } 4000 #endif 4001 default: 4002 return -EOPNOTSUPP; 4003 } 4004 4005 return 0; 4006 } 4007 4008 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4009 { 4010 link->conf->color_change_active = false; 4011 4012 ieee80211_free_next_beacon(link); 4013 4014 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4015 } 4016 4017 static int 4018 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4019 struct cfg80211_csa_settings *params) 4020 { 4021 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4022 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4023 struct ieee80211_local *local = sdata->local; 4024 struct ieee80211_channel_switch ch_switch = { 4025 .link_id = params->link_id, 4026 }; 4027 struct ieee80211_chanctx_conf *conf; 4028 struct ieee80211_chanctx *chanctx; 4029 struct ieee80211_bss_conf *link_conf; 4030 struct ieee80211_link_data *link_data; 4031 u64 changed = 0; 4032 u8 link_id = params->link_id; 4033 int err; 4034 4035 lockdep_assert_wiphy(local->hw.wiphy); 4036 4037 if (!list_empty(&local->roc_list) || local->scanning) 4038 return -EBUSY; 4039 4040 if (sdata->wdev.links[link_id].cac_started) 4041 return -EBUSY; 4042 4043 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4044 return -EINVAL; 4045 4046 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4047 if (!link_data) 4048 return -ENOLINK; 4049 4050 link_conf = link_data->conf; 4051 4052 if (chanreq.oper.punctured && !link_conf->eht_support) 4053 return -EINVAL; 4054 4055 /* don't allow another channel switch if one is already active. */ 4056 if (link_conf->csa_active) 4057 return -EBUSY; 4058 4059 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4060 if (!conf) { 4061 err = -EBUSY; 4062 goto out; 4063 } 4064 4065 if (params->chandef.chan->freq_offset) { 4066 /* this may work, but is untested */ 4067 err = -EOPNOTSUPP; 4068 goto out; 4069 } 4070 4071 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4072 4073 ch_switch.timestamp = 0; 4074 ch_switch.device_timestamp = 0; 4075 ch_switch.block_tx = params->block_tx; 4076 ch_switch.chandef = chanreq.oper; 4077 ch_switch.count = params->count; 4078 4079 err = drv_pre_channel_switch(sdata, &ch_switch); 4080 if (err) 4081 goto out; 4082 4083 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4084 chanctx->mode, 4085 params->radar_required); 4086 if (err) 4087 goto out; 4088 4089 /* if reservation is invalid then this will fail */ 4090 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4091 if (err) { 4092 ieee80211_link_unreserve_chanctx(link_data); 4093 goto out; 4094 } 4095 4096 /* if there is a color change in progress, abort it */ 4097 if (link_conf->color_change_active) 4098 ieee80211_color_change_abort(link_data); 4099 4100 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4101 if (err) { 4102 ieee80211_link_unreserve_chanctx(link_data); 4103 goto out; 4104 } 4105 4106 link_data->csa.chanreq = chanreq; 4107 link_conf->csa_active = true; 4108 4109 if (params->block_tx) 4110 ieee80211_vif_block_queues_csa(sdata); 4111 4112 cfg80211_ch_switch_started_notify(sdata->dev, 4113 &link_data->csa.chanreq.oper, link_id, 4114 params->count, params->block_tx); 4115 4116 if (changed) { 4117 ieee80211_link_info_change_notify(sdata, link_data, changed); 4118 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4119 } else { 4120 /* if the beacon didn't change, we can finalize immediately */ 4121 ieee80211_csa_finalize(link_data); 4122 } 4123 4124 out: 4125 return err; 4126 } 4127 4128 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4129 struct cfg80211_csa_settings *params) 4130 { 4131 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4132 struct ieee80211_local *local = sdata->local; 4133 4134 lockdep_assert_wiphy(local->hw.wiphy); 4135 4136 return __ieee80211_channel_switch(wiphy, dev, params); 4137 } 4138 4139 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4140 { 4141 lockdep_assert_wiphy(local->hw.wiphy); 4142 4143 local->roc_cookie_counter++; 4144 4145 /* wow, you wrapped 64 bits ... more likely a bug */ 4146 if (WARN_ON(local->roc_cookie_counter == 0)) 4147 local->roc_cookie_counter++; 4148 4149 return local->roc_cookie_counter; 4150 } 4151 4152 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4153 u64 *cookie, gfp_t gfp) 4154 { 4155 unsigned long spin_flags; 4156 struct sk_buff *ack_skb; 4157 int id; 4158 4159 ack_skb = skb_copy(skb, gfp); 4160 if (!ack_skb) 4161 return -ENOMEM; 4162 4163 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4164 id = idr_alloc(&local->ack_status_frames, ack_skb, 4165 1, 0x2000, GFP_ATOMIC); 4166 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4167 4168 if (id < 0) { 4169 kfree_skb(ack_skb); 4170 return -ENOMEM; 4171 } 4172 4173 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4174 IEEE80211_SKB_CB(skb)->status_data = id; 4175 4176 *cookie = ieee80211_mgmt_tx_cookie(local); 4177 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4178 4179 return 0; 4180 } 4181 4182 static void 4183 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4184 struct wireless_dev *wdev, 4185 struct mgmt_frame_regs *upd) 4186 { 4187 struct ieee80211_local *local = wiphy_priv(wiphy); 4188 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4189 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4190 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4191 bool global_change, intf_change; 4192 4193 global_change = 4194 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4195 (local->rx_mcast_action_reg != 4196 !!(upd->global_mcast_stypes & action_mask)); 4197 local->probe_req_reg = upd->global_stypes & preq_mask; 4198 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4199 4200 intf_change = (sdata->vif.probe_req_reg != 4201 !!(upd->interface_stypes & preq_mask)) || 4202 (sdata->vif.rx_mcast_action_reg != 4203 !!(upd->interface_mcast_stypes & action_mask)); 4204 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4205 sdata->vif.rx_mcast_action_reg = 4206 upd->interface_mcast_stypes & action_mask; 4207 4208 if (!local->open_count) 4209 return; 4210 4211 if (intf_change && ieee80211_sdata_running(sdata)) 4212 drv_config_iface_filter(local, sdata, 4213 sdata->vif.probe_req_reg ? 4214 FIF_PROBE_REQ : 0, 4215 FIF_PROBE_REQ); 4216 4217 if (global_change) 4218 ieee80211_configure_filter(local); 4219 } 4220 4221 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4222 { 4223 struct ieee80211_local *local = wiphy_priv(wiphy); 4224 int ret; 4225 4226 if (local->started) 4227 return -EOPNOTSUPP; 4228 4229 ret = drv_set_antenna(local, tx_ant, rx_ant); 4230 if (ret) 4231 return ret; 4232 4233 local->rx_chains = hweight8(rx_ant); 4234 return 0; 4235 } 4236 4237 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4238 { 4239 struct ieee80211_local *local = wiphy_priv(wiphy); 4240 4241 return drv_get_antenna(local, tx_ant, rx_ant); 4242 } 4243 4244 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4245 struct net_device *dev, 4246 struct cfg80211_gtk_rekey_data *data) 4247 { 4248 struct ieee80211_local *local = wiphy_priv(wiphy); 4249 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4250 4251 if (!local->ops->set_rekey_data) 4252 return -EOPNOTSUPP; 4253 4254 drv_set_rekey_data(local, sdata, data); 4255 4256 return 0; 4257 } 4258 4259 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4260 const u8 *peer, u64 *cookie) 4261 { 4262 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4263 struct ieee80211_local *local = sdata->local; 4264 struct ieee80211_qos_hdr *nullfunc; 4265 struct sk_buff *skb; 4266 int size = sizeof(*nullfunc); 4267 __le16 fc; 4268 bool qos; 4269 struct ieee80211_tx_info *info; 4270 struct sta_info *sta; 4271 struct ieee80211_chanctx_conf *chanctx_conf; 4272 enum nl80211_band band; 4273 int ret; 4274 4275 /* the lock is needed to assign the cookie later */ 4276 lockdep_assert_wiphy(local->hw.wiphy); 4277 4278 rcu_read_lock(); 4279 sta = sta_info_get_bss(sdata, peer); 4280 if (!sta) { 4281 ret = -ENOLINK; 4282 goto unlock; 4283 } 4284 4285 qos = sta->sta.wme; 4286 4287 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4288 if (WARN_ON(!chanctx_conf)) { 4289 ret = -EINVAL; 4290 goto unlock; 4291 } 4292 band = chanctx_conf->def.chan->band; 4293 4294 if (qos) { 4295 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4296 IEEE80211_STYPE_QOS_NULLFUNC | 4297 IEEE80211_FCTL_FROMDS); 4298 } else { 4299 size -= 2; 4300 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4301 IEEE80211_STYPE_NULLFUNC | 4302 IEEE80211_FCTL_FROMDS); 4303 } 4304 4305 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4306 if (!skb) { 4307 ret = -ENOMEM; 4308 goto unlock; 4309 } 4310 4311 skb->dev = dev; 4312 4313 skb_reserve(skb, local->hw.extra_tx_headroom); 4314 4315 nullfunc = skb_put(skb, size); 4316 nullfunc->frame_control = fc; 4317 nullfunc->duration_id = 0; 4318 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4319 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4320 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4321 nullfunc->seq_ctrl = 0; 4322 4323 info = IEEE80211_SKB_CB(skb); 4324 4325 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4326 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4327 info->band = band; 4328 4329 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4330 skb->priority = 7; 4331 if (qos) 4332 nullfunc->qos_ctrl = cpu_to_le16(7); 4333 4334 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4335 if (ret) { 4336 kfree_skb(skb); 4337 goto unlock; 4338 } 4339 4340 local_bh_disable(); 4341 ieee80211_xmit(sdata, sta, skb); 4342 local_bh_enable(); 4343 4344 ret = 0; 4345 unlock: 4346 rcu_read_unlock(); 4347 4348 return ret; 4349 } 4350 4351 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4352 struct wireless_dev *wdev, 4353 unsigned int link_id, 4354 struct cfg80211_chan_def *chandef) 4355 { 4356 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4357 struct ieee80211_local *local = wiphy_priv(wiphy); 4358 struct ieee80211_chanctx_conf *chanctx_conf; 4359 struct ieee80211_link_data *link; 4360 int ret = -ENODATA; 4361 4362 rcu_read_lock(); 4363 link = rcu_dereference(sdata->link[link_id]); 4364 if (!link) { 4365 ret = -ENOLINK; 4366 goto out; 4367 } 4368 4369 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4370 if (chanctx_conf) { 4371 *chandef = link->conf->chanreq.oper; 4372 ret = 0; 4373 } else if (local->open_count > 0 && 4374 local->open_count == local->virt_monitors && 4375 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4376 *chandef = local->monitor_chanreq.oper; 4377 ret = 0; 4378 } 4379 out: 4380 rcu_read_unlock(); 4381 4382 return ret; 4383 } 4384 4385 #ifdef CONFIG_PM 4386 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4387 { 4388 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4389 } 4390 #endif 4391 4392 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4393 struct net_device *dev, 4394 struct cfg80211_qos_map *qos_map) 4395 { 4396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4397 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4398 4399 if (qos_map) { 4400 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4401 if (!new_qos_map) 4402 return -ENOMEM; 4403 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4404 } else { 4405 /* A NULL qos_map was passed to disable QoS mapping */ 4406 new_qos_map = NULL; 4407 } 4408 4409 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4410 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4411 if (old_qos_map) 4412 kfree_rcu(old_qos_map, rcu_head); 4413 4414 return 0; 4415 } 4416 4417 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4418 struct net_device *dev, 4419 unsigned int link_id, 4420 struct cfg80211_chan_def *chandef) 4421 { 4422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4423 struct ieee80211_link_data *link; 4424 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4425 int ret; 4426 u64 changed = 0; 4427 4428 link = sdata_dereference(sdata->link[link_id], sdata); 4429 4430 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4431 if (ret == 0) 4432 ieee80211_link_info_change_notify(sdata, link, changed); 4433 4434 return ret; 4435 } 4436 4437 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4438 u8 tsid, const u8 *peer, u8 up, 4439 u16 admitted_time) 4440 { 4441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4442 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4443 int ac = ieee802_1d_to_ac[up]; 4444 4445 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4446 return -EOPNOTSUPP; 4447 4448 if (!(sdata->wmm_acm & BIT(up))) 4449 return -EINVAL; 4450 4451 if (ifmgd->tx_tspec[ac].admitted_time) 4452 return -EBUSY; 4453 4454 if (admitted_time) { 4455 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4456 ifmgd->tx_tspec[ac].tsid = tsid; 4457 ifmgd->tx_tspec[ac].up = up; 4458 } 4459 4460 return 0; 4461 } 4462 4463 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4464 u8 tsid, const u8 *peer) 4465 { 4466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4467 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4468 struct ieee80211_local *local = wiphy_priv(wiphy); 4469 int ac; 4470 4471 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4472 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4473 4474 /* skip unused entries */ 4475 if (!tx_tspec->admitted_time) 4476 continue; 4477 4478 if (tx_tspec->tsid != tsid) 4479 continue; 4480 4481 /* due to this new packets will be reassigned to non-ACM ACs */ 4482 tx_tspec->up = -1; 4483 4484 /* Make sure that all packets have been sent to avoid to 4485 * restore the QoS params on packets that are still on the 4486 * queues. 4487 */ 4488 synchronize_net(); 4489 ieee80211_flush_queues(local, sdata, false); 4490 4491 /* restore the normal QoS parameters 4492 * (unconditionally to avoid races) 4493 */ 4494 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4495 tx_tspec->downgraded = false; 4496 ieee80211_sta_handle_tspec_ac_params(sdata); 4497 4498 /* finally clear all the data */ 4499 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4500 4501 return 0; 4502 } 4503 4504 return -ENOENT; 4505 } 4506 4507 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4508 u8 inst_id, 4509 enum nl80211_nan_func_term_reason reason, 4510 gfp_t gfp) 4511 { 4512 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4513 struct cfg80211_nan_func *func; 4514 u64 cookie; 4515 4516 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4517 return; 4518 4519 spin_lock_bh(&sdata->u.nan.func_lock); 4520 4521 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4522 if (WARN_ON(!func)) { 4523 spin_unlock_bh(&sdata->u.nan.func_lock); 4524 return; 4525 } 4526 4527 cookie = func->cookie; 4528 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4529 4530 spin_unlock_bh(&sdata->u.nan.func_lock); 4531 4532 cfg80211_free_nan_func(func); 4533 4534 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4535 reason, cookie, gfp); 4536 } 4537 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4538 4539 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4540 struct cfg80211_nan_match_params *match, 4541 gfp_t gfp) 4542 { 4543 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4544 struct cfg80211_nan_func *func; 4545 4546 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4547 return; 4548 4549 spin_lock_bh(&sdata->u.nan.func_lock); 4550 4551 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4552 if (WARN_ON(!func)) { 4553 spin_unlock_bh(&sdata->u.nan.func_lock); 4554 return; 4555 } 4556 match->cookie = func->cookie; 4557 4558 spin_unlock_bh(&sdata->u.nan.func_lock); 4559 4560 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4561 } 4562 EXPORT_SYMBOL(ieee80211_nan_func_match); 4563 4564 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4565 struct net_device *dev, 4566 const bool enabled) 4567 { 4568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4569 4570 sdata->u.ap.multicast_to_unicast = enabled; 4571 4572 return 0; 4573 } 4574 4575 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4576 struct txq_info *txqi) 4577 { 4578 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4579 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4580 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4581 } 4582 4583 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4584 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4585 txqstats->backlog_packets = txqi->tin.backlog_packets; 4586 } 4587 4588 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4589 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4590 txqstats->flows = txqi->tin.flows; 4591 } 4592 4593 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4594 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4595 txqstats->drops = txqi->cstats.drop_count; 4596 } 4597 4598 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4599 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4600 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4601 } 4602 4603 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4604 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4605 txqstats->overlimit = txqi->tin.overlimit; 4606 } 4607 4608 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4609 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4610 txqstats->collisions = txqi->tin.collisions; 4611 } 4612 4613 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4614 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4615 txqstats->tx_bytes = txqi->tin.tx_bytes; 4616 } 4617 4618 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4619 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4620 txqstats->tx_packets = txqi->tin.tx_packets; 4621 } 4622 } 4623 4624 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4625 struct wireless_dev *wdev, 4626 struct cfg80211_txq_stats *txqstats) 4627 { 4628 struct ieee80211_local *local = wiphy_priv(wiphy); 4629 struct ieee80211_sub_if_data *sdata; 4630 int ret = 0; 4631 4632 spin_lock_bh(&local->fq.lock); 4633 rcu_read_lock(); 4634 4635 if (wdev) { 4636 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4637 if (!sdata->vif.txq) { 4638 ret = 1; 4639 goto out; 4640 } 4641 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4642 } else { 4643 /* phy stats */ 4644 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4645 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4646 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4647 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4648 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4649 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4650 txqstats->backlog_packets = local->fq.backlog; 4651 txqstats->backlog_bytes = local->fq.memory_usage; 4652 txqstats->overlimit = local->fq.overlimit; 4653 txqstats->overmemory = local->fq.overmemory; 4654 txqstats->collisions = local->fq.collisions; 4655 txqstats->max_flows = local->fq.flows_cnt; 4656 } 4657 4658 out: 4659 rcu_read_unlock(); 4660 spin_unlock_bh(&local->fq.lock); 4661 4662 return ret; 4663 } 4664 4665 static int 4666 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4667 struct net_device *dev, 4668 struct cfg80211_ftm_responder_stats *ftm_stats) 4669 { 4670 struct ieee80211_local *local = wiphy_priv(wiphy); 4671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4672 4673 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4674 } 4675 4676 static int 4677 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4678 struct cfg80211_pmsr_request *request) 4679 { 4680 struct ieee80211_local *local = wiphy_priv(wiphy); 4681 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4682 4683 return drv_start_pmsr(local, sdata, request); 4684 } 4685 4686 static void 4687 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4688 struct cfg80211_pmsr_request *request) 4689 { 4690 struct ieee80211_local *local = wiphy_priv(wiphy); 4691 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4692 4693 return drv_abort_pmsr(local, sdata, request); 4694 } 4695 4696 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4697 struct net_device *dev, 4698 struct cfg80211_tid_config *tid_conf) 4699 { 4700 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4701 struct sta_info *sta; 4702 4703 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4704 4705 if (!sdata->local->ops->set_tid_config) 4706 return -EOPNOTSUPP; 4707 4708 if (!tid_conf->peer) 4709 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4710 4711 sta = sta_info_get_bss(sdata, tid_conf->peer); 4712 if (!sta) 4713 return -ENOENT; 4714 4715 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4716 } 4717 4718 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4719 struct net_device *dev, 4720 const u8 *peer, u8 tids) 4721 { 4722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4723 struct sta_info *sta; 4724 4725 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4726 4727 if (!sdata->local->ops->reset_tid_config) 4728 return -EOPNOTSUPP; 4729 4730 if (!peer) 4731 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4732 4733 sta = sta_info_get_bss(sdata, peer); 4734 if (!sta) 4735 return -ENOENT; 4736 4737 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4738 } 4739 4740 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4741 struct cfg80211_sar_specs *sar) 4742 { 4743 struct ieee80211_local *local = wiphy_priv(wiphy); 4744 4745 if (!local->ops->set_sar_specs) 4746 return -EOPNOTSUPP; 4747 4748 return local->ops->set_sar_specs(&local->hw, sar); 4749 } 4750 4751 static int 4752 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4753 u64 *changed) 4754 { 4755 struct ieee80211_sub_if_data *sdata = link->sdata; 4756 4757 switch (sdata->vif.type) { 4758 case NL80211_IFTYPE_AP: { 4759 int ret; 4760 4761 if (!link->u.ap.next_beacon) 4762 return -EINVAL; 4763 4764 ret = ieee80211_assign_beacon(sdata, link, 4765 link->u.ap.next_beacon, 4766 NULL, NULL, changed); 4767 ieee80211_free_next_beacon(link); 4768 4769 if (ret < 0) 4770 return ret; 4771 4772 break; 4773 } 4774 default: 4775 WARN_ON_ONCE(1); 4776 return -EINVAL; 4777 } 4778 4779 return 0; 4780 } 4781 4782 static int 4783 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4784 struct cfg80211_color_change_settings *params, 4785 u64 *changed) 4786 { 4787 struct ieee80211_sub_if_data *sdata = link->sdata; 4788 struct ieee80211_color_change_settings color_change = {}; 4789 int err; 4790 4791 switch (sdata->vif.type) { 4792 case NL80211_IFTYPE_AP: 4793 link->u.ap.next_beacon = 4794 cfg80211_beacon_dup(¶ms->beacon_next); 4795 if (!link->u.ap.next_beacon) 4796 return -ENOMEM; 4797 4798 if (params->count <= 1) 4799 break; 4800 4801 color_change.counter_offset_beacon = 4802 params->counter_offset_beacon; 4803 color_change.counter_offset_presp = 4804 params->counter_offset_presp; 4805 color_change.count = params->count; 4806 4807 err = ieee80211_assign_beacon(sdata, link, 4808 ¶ms->beacon_color_change, 4809 NULL, &color_change, changed); 4810 if (err < 0) { 4811 ieee80211_free_next_beacon(link); 4812 return err; 4813 } 4814 break; 4815 default: 4816 return -EOPNOTSUPP; 4817 } 4818 4819 return 0; 4820 } 4821 4822 static void 4823 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4824 u8 color, int enable, u64 changed) 4825 { 4826 struct ieee80211_sub_if_data *sdata = link->sdata; 4827 4828 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4829 4830 link->conf->he_bss_color.color = color; 4831 link->conf->he_bss_color.enabled = enable; 4832 changed |= BSS_CHANGED_HE_BSS_COLOR; 4833 4834 ieee80211_link_info_change_notify(sdata, link, changed); 4835 4836 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4837 struct ieee80211_sub_if_data *child; 4838 4839 list_for_each_entry(child, &sdata->local->interfaces, list) { 4840 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4841 child->vif.bss_conf.he_bss_color.color = color; 4842 child->vif.bss_conf.he_bss_color.enabled = enable; 4843 ieee80211_link_info_change_notify(child, 4844 &child->deflink, 4845 BSS_CHANGED_HE_BSS_COLOR); 4846 } 4847 } 4848 } 4849 } 4850 4851 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4852 { 4853 struct ieee80211_sub_if_data *sdata = link->sdata; 4854 struct ieee80211_local *local = sdata->local; 4855 u64 changed = 0; 4856 int err; 4857 4858 lockdep_assert_wiphy(local->hw.wiphy); 4859 4860 link->conf->color_change_active = false; 4861 4862 err = ieee80211_set_after_color_change_beacon(link, &changed); 4863 if (err) { 4864 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4865 return err; 4866 } 4867 4868 ieee80211_color_change_bss_config_notify(link, 4869 link->conf->color_change_color, 4870 1, changed); 4871 cfg80211_color_change_notify(sdata->dev, link->link_id); 4872 4873 return 0; 4874 } 4875 4876 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4877 struct wiphy_work *work) 4878 { 4879 struct ieee80211_link_data *link = 4880 container_of(work, struct ieee80211_link_data, 4881 color_change_finalize_work); 4882 struct ieee80211_sub_if_data *sdata = link->sdata; 4883 struct ieee80211_bss_conf *link_conf = link->conf; 4884 struct ieee80211_local *local = sdata->local; 4885 4886 lockdep_assert_wiphy(local->hw.wiphy); 4887 4888 /* AP might have been stopped while waiting for the lock. */ 4889 if (!link_conf->color_change_active) 4890 return; 4891 4892 if (!ieee80211_sdata_running(sdata)) 4893 return; 4894 4895 ieee80211_color_change_finalize(link); 4896 } 4897 4898 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 4899 struct wiphy_work *work) 4900 { 4901 struct ieee80211_link_data *link = 4902 container_of(work, struct ieee80211_link_data, 4903 color_collision_detect_work.work); 4904 struct ieee80211_sub_if_data *sdata = link->sdata; 4905 4906 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 4907 link->link_id); 4908 } 4909 4910 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 4911 { 4912 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4913 struct ieee80211_link_data *link; 4914 4915 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4916 return; 4917 4918 rcu_read_lock(); 4919 4920 link = rcu_dereference(sdata->link[link_id]); 4921 if (WARN_ON(!link)) { 4922 rcu_read_unlock(); 4923 return; 4924 } 4925 4926 wiphy_work_queue(sdata->local->hw.wiphy, 4927 &link->color_change_finalize_work); 4928 4929 rcu_read_unlock(); 4930 } 4931 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4932 4933 void 4934 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4935 u64 color_bitmap, u8 link_id) 4936 { 4937 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4938 struct ieee80211_link_data *link; 4939 4940 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4941 return; 4942 4943 rcu_read_lock(); 4944 4945 link = rcu_dereference(sdata->link[link_id]); 4946 if (WARN_ON(!link)) { 4947 rcu_read_unlock(); 4948 return; 4949 } 4950 4951 if (link->conf->color_change_active || link->conf->csa_active) { 4952 rcu_read_unlock(); 4953 return; 4954 } 4955 4956 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 4957 &link->color_collision_detect_work)) { 4958 rcu_read_unlock(); 4959 return; 4960 } 4961 4962 link->color_bitmap = color_bitmap; 4963 /* queue the color collision detection event every 500 ms in order to 4964 * avoid sending too much netlink messages to userspace. 4965 */ 4966 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 4967 &link->color_collision_detect_work, 4968 msecs_to_jiffies(500)); 4969 4970 rcu_read_unlock(); 4971 } 4972 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4973 4974 static int 4975 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4976 struct cfg80211_color_change_settings *params) 4977 { 4978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4979 struct ieee80211_local *local = sdata->local; 4980 struct ieee80211_bss_conf *link_conf; 4981 struct ieee80211_link_data *link; 4982 u8 link_id = params->link_id; 4983 u64 changed = 0; 4984 int err; 4985 4986 lockdep_assert_wiphy(local->hw.wiphy); 4987 4988 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4989 return -EINVAL; 4990 4991 link = wiphy_dereference(wiphy, sdata->link[link_id]); 4992 if (!link) 4993 return -ENOLINK; 4994 4995 link_conf = link->conf; 4996 4997 if (link_conf->nontransmitted) 4998 return -EINVAL; 4999 5000 /* don't allow another color change if one is already active or if csa 5001 * is active 5002 */ 5003 if (link_conf->color_change_active || link_conf->csa_active) { 5004 err = -EBUSY; 5005 goto out; 5006 } 5007 5008 err = ieee80211_set_color_change_beacon(link, params, &changed); 5009 if (err) 5010 goto out; 5011 5012 link_conf->color_change_active = true; 5013 link_conf->color_change_color = params->color; 5014 5015 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5016 5017 if (changed) 5018 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5019 else 5020 /* if the beacon didn't change, we can finalize immediately */ 5021 ieee80211_color_change_finalize(link); 5022 5023 out: 5024 5025 return err; 5026 } 5027 5028 static int 5029 ieee80211_set_radar_background(struct wiphy *wiphy, 5030 struct cfg80211_chan_def *chandef) 5031 { 5032 struct ieee80211_local *local = wiphy_priv(wiphy); 5033 5034 if (!local->ops->set_radar_background) 5035 return -EOPNOTSUPP; 5036 5037 return local->ops->set_radar_background(&local->hw, chandef); 5038 } 5039 5040 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5041 struct wireless_dev *wdev, 5042 unsigned int link_id) 5043 { 5044 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5045 5046 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5047 5048 if (wdev->use_4addr) 5049 return -EOPNOTSUPP; 5050 5051 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5052 } 5053 5054 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5055 struct wireless_dev *wdev, 5056 unsigned int link_id) 5057 { 5058 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5059 u16 new_links = wdev->valid_links & ~BIT(link_id); 5060 5061 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5062 5063 /* During the link teardown process, certain functions require the 5064 * link_id to remain in the valid_links bitmap. Therefore, instead 5065 * of removing the link_id from the bitmap, pass a masked value to 5066 * simulate as if link_id does not exist anymore. 5067 */ 5068 ieee80211_vif_set_links(sdata, new_links, 0); 5069 } 5070 5071 static int 5072 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5073 struct link_station_parameters *params) 5074 { 5075 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5076 struct ieee80211_local *local = wiphy_priv(wiphy); 5077 struct sta_info *sta; 5078 int ret; 5079 5080 lockdep_assert_wiphy(local->hw.wiphy); 5081 5082 sta = sta_info_get_bss(sdata, params->mld_mac); 5083 if (!sta) 5084 return -ENOENT; 5085 5086 if (!sta->sta.valid_links) 5087 return -EINVAL; 5088 5089 if (sta->sta.valid_links & BIT(params->link_id)) 5090 return -EALREADY; 5091 5092 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5093 if (ret) 5094 return ret; 5095 5096 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5097 if (ret) { 5098 ieee80211_sta_free_link(sta, params->link_id); 5099 return ret; 5100 } 5101 5102 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5103 struct link_sta_info *link_sta; 5104 5105 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5106 rate_control_rate_init(link_sta); 5107 } 5108 5109 /* ieee80211_sta_activate_link frees the link upon failure */ 5110 return ieee80211_sta_activate_link(sta, params->link_id); 5111 } 5112 5113 static int 5114 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5115 struct link_station_parameters *params) 5116 { 5117 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5118 struct ieee80211_local *local = wiphy_priv(wiphy); 5119 struct sta_info *sta; 5120 5121 lockdep_assert_wiphy(local->hw.wiphy); 5122 5123 sta = sta_info_get_bss(sdata, params->mld_mac); 5124 if (!sta) 5125 return -ENOENT; 5126 5127 if (!(sta->sta.valid_links & BIT(params->link_id))) 5128 return -EINVAL; 5129 5130 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5131 params); 5132 } 5133 5134 static int 5135 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5136 struct link_station_del_parameters *params) 5137 { 5138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5139 struct sta_info *sta; 5140 5141 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5142 5143 sta = sta_info_get_bss(sdata, params->mld_mac); 5144 if (!sta) 5145 return -ENOENT; 5146 5147 if (!(sta->sta.valid_links & BIT(params->link_id))) 5148 return -EINVAL; 5149 5150 /* must not create a STA without links */ 5151 if (sta->sta.valid_links == BIT(params->link_id)) 5152 return -EINVAL; 5153 5154 ieee80211_sta_remove_link(sta, params->link_id); 5155 5156 return 0; 5157 } 5158 5159 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5160 struct net_device *dev, 5161 struct cfg80211_set_hw_timestamp *hwts) 5162 { 5163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5164 struct ieee80211_local *local = sdata->local; 5165 5166 if (!local->ops->set_hw_timestamp) 5167 return -EOPNOTSUPP; 5168 5169 if (!check_sdata_in_driver(sdata)) 5170 return -EIO; 5171 5172 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5173 } 5174 5175 static int 5176 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5177 struct cfg80211_ttlm_params *params) 5178 { 5179 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5180 5181 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5182 5183 return ieee80211_req_neg_ttlm(sdata, params); 5184 } 5185 5186 static int 5187 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5188 struct cfg80211_ml_reconf_req *req) 5189 { 5190 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5191 5192 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5193 5194 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5195 } 5196 5197 static int 5198 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5199 { 5200 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5201 5202 return ieee80211_mgd_set_epcs(sdata, enable); 5203 } 5204 5205 const struct cfg80211_ops mac80211_config_ops = { 5206 .add_virtual_intf = ieee80211_add_iface, 5207 .del_virtual_intf = ieee80211_del_iface, 5208 .change_virtual_intf = ieee80211_change_iface, 5209 .start_p2p_device = ieee80211_start_p2p_device, 5210 .stop_p2p_device = ieee80211_stop_p2p_device, 5211 .add_key = ieee80211_add_key, 5212 .del_key = ieee80211_del_key, 5213 .get_key = ieee80211_get_key, 5214 .set_default_key = ieee80211_config_default_key, 5215 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5216 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5217 .start_ap = ieee80211_start_ap, 5218 .change_beacon = ieee80211_change_beacon, 5219 .stop_ap = ieee80211_stop_ap, 5220 .add_station = ieee80211_add_station, 5221 .del_station = ieee80211_del_station, 5222 .change_station = ieee80211_change_station, 5223 .get_station = ieee80211_get_station, 5224 .dump_station = ieee80211_dump_station, 5225 .dump_survey = ieee80211_dump_survey, 5226 #ifdef CONFIG_MAC80211_MESH 5227 .add_mpath = ieee80211_add_mpath, 5228 .del_mpath = ieee80211_del_mpath, 5229 .change_mpath = ieee80211_change_mpath, 5230 .get_mpath = ieee80211_get_mpath, 5231 .dump_mpath = ieee80211_dump_mpath, 5232 .get_mpp = ieee80211_get_mpp, 5233 .dump_mpp = ieee80211_dump_mpp, 5234 .update_mesh_config = ieee80211_update_mesh_config, 5235 .get_mesh_config = ieee80211_get_mesh_config, 5236 .join_mesh = ieee80211_join_mesh, 5237 .leave_mesh = ieee80211_leave_mesh, 5238 #endif 5239 .join_ocb = ieee80211_join_ocb, 5240 .leave_ocb = ieee80211_leave_ocb, 5241 .change_bss = ieee80211_change_bss, 5242 .inform_bss = ieee80211_inform_bss, 5243 .set_txq_params = ieee80211_set_txq_params, 5244 .set_monitor_channel = ieee80211_set_monitor_channel, 5245 .suspend = ieee80211_suspend, 5246 .resume = ieee80211_resume, 5247 .scan = ieee80211_scan, 5248 .abort_scan = ieee80211_abort_scan, 5249 .sched_scan_start = ieee80211_sched_scan_start, 5250 .sched_scan_stop = ieee80211_sched_scan_stop, 5251 .auth = ieee80211_auth, 5252 .assoc = ieee80211_assoc, 5253 .deauth = ieee80211_deauth, 5254 .disassoc = ieee80211_disassoc, 5255 .join_ibss = ieee80211_join_ibss, 5256 .leave_ibss = ieee80211_leave_ibss, 5257 .set_mcast_rate = ieee80211_set_mcast_rate, 5258 .set_wiphy_params = ieee80211_set_wiphy_params, 5259 .set_tx_power = ieee80211_set_tx_power, 5260 .get_tx_power = ieee80211_get_tx_power, 5261 .rfkill_poll = ieee80211_rfkill_poll, 5262 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5263 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5264 .set_power_mgmt = ieee80211_set_power_mgmt, 5265 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5266 .remain_on_channel = ieee80211_remain_on_channel, 5267 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5268 .mgmt_tx = ieee80211_mgmt_tx, 5269 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5270 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5271 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5272 .update_mgmt_frame_registrations = 5273 ieee80211_update_mgmt_frame_registrations, 5274 .set_antenna = ieee80211_set_antenna, 5275 .get_antenna = ieee80211_get_antenna, 5276 .set_rekey_data = ieee80211_set_rekey_data, 5277 .tdls_oper = ieee80211_tdls_oper, 5278 .tdls_mgmt = ieee80211_tdls_mgmt, 5279 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5280 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5281 .probe_client = ieee80211_probe_client, 5282 .set_noack_map = ieee80211_set_noack_map, 5283 #ifdef CONFIG_PM 5284 .set_wakeup = ieee80211_set_wakeup, 5285 #endif 5286 .get_channel = ieee80211_cfg_get_channel, 5287 .start_radar_detection = ieee80211_start_radar_detection, 5288 .end_cac = ieee80211_end_cac, 5289 .channel_switch = ieee80211_channel_switch, 5290 .set_qos_map = ieee80211_set_qos_map, 5291 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5292 .add_tx_ts = ieee80211_add_tx_ts, 5293 .del_tx_ts = ieee80211_del_tx_ts, 5294 .start_nan = ieee80211_start_nan, 5295 .stop_nan = ieee80211_stop_nan, 5296 .nan_change_conf = ieee80211_nan_change_conf, 5297 .add_nan_func = ieee80211_add_nan_func, 5298 .del_nan_func = ieee80211_del_nan_func, 5299 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5300 .tx_control_port = ieee80211_tx_control_port, 5301 .get_txq_stats = ieee80211_get_txq_stats, 5302 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5303 .start_pmsr = ieee80211_start_pmsr, 5304 .abort_pmsr = ieee80211_abort_pmsr, 5305 .probe_mesh_link = ieee80211_probe_mesh_link, 5306 .set_tid_config = ieee80211_set_tid_config, 5307 .reset_tid_config = ieee80211_reset_tid_config, 5308 .set_sar_specs = ieee80211_set_sar_specs, 5309 .color_change = ieee80211_color_change, 5310 .set_radar_background = ieee80211_set_radar_background, 5311 .add_intf_link = ieee80211_add_intf_link, 5312 .del_intf_link = ieee80211_del_intf_link, 5313 .add_link_station = ieee80211_add_link_station, 5314 .mod_link_station = ieee80211_mod_link_station, 5315 .del_link_station = ieee80211_del_link_station, 5316 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5317 .set_ttlm = ieee80211_set_ttlm, 5318 .get_radio_mask = ieee80211_get_radio_mask, 5319 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5320 .set_epcs = ieee80211_set_epcs, 5321 }; 5322