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) 2018-2024 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 109 monitor_sdata = sdata; 110 else 111 monitor_sdata = wiphy_dereference(local->hw.wiphy, 112 local->monitor_sdata); 113 114 if (!monitor_sdata && 115 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 116 return -EOPNOTSUPP; 117 118 /* apply all changes now - no failures allowed */ 119 120 if (monitor_sdata && 121 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 122 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))) 123 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 124 125 if (params->flags) { 126 if (ieee80211_sdata_running(sdata)) { 127 ieee80211_adjust_monitor_flags(sdata, -1); 128 sdata->u.mntr.flags = params->flags; 129 ieee80211_adjust_monitor_flags(sdata, 1); 130 131 ieee80211_configure_filter(local); 132 } else { 133 /* 134 * Because the interface is down, ieee80211_do_stop 135 * and ieee80211_do_open take care of "everything" 136 * mentioned in the comment above. 137 */ 138 sdata->u.mntr.flags = params->flags; 139 } 140 } 141 142 return 0; 143 } 144 145 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 146 struct cfg80211_mbssid_config *params, 147 struct ieee80211_bss_conf *link_conf) 148 { 149 struct ieee80211_sub_if_data *tx_sdata; 150 151 sdata->vif.mbssid_tx_vif = NULL; 152 link_conf->bssid_index = 0; 153 link_conf->nontransmitted = false; 154 link_conf->ema_ap = false; 155 link_conf->bssid_indicator = 0; 156 157 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev) 158 return -EINVAL; 159 160 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev); 161 if (!tx_sdata) 162 return -EINVAL; 163 164 if (tx_sdata == sdata) { 165 sdata->vif.mbssid_tx_vif = &sdata->vif; 166 } else { 167 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 168 link_conf->nontransmitted = true; 169 link_conf->bssid_index = params->index; 170 } 171 if (params->ema) 172 link_conf->ema_ap = true; 173 174 return 0; 175 } 176 177 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 178 const char *name, 179 unsigned char name_assign_type, 180 enum nl80211_iftype type, 181 struct vif_params *params) 182 { 183 struct ieee80211_local *local = wiphy_priv(wiphy); 184 struct wireless_dev *wdev; 185 struct ieee80211_sub_if_data *sdata; 186 int err; 187 188 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 189 if (err) 190 return ERR_PTR(err); 191 192 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 193 194 if (type == NL80211_IFTYPE_MONITOR) { 195 err = ieee80211_set_mon_options(sdata, params); 196 if (err) { 197 ieee80211_if_remove(sdata); 198 return NULL; 199 } 200 } 201 202 /* Let the driver know that an interface is going to be added. 203 * Indicate so only for interface types that will be added to the 204 * driver. 205 */ 206 switch (type) { 207 case NL80211_IFTYPE_AP_VLAN: 208 break; 209 case NL80211_IFTYPE_MONITOR: 210 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 211 !(params->flags & MONITOR_FLAG_ACTIVE)) 212 break; 213 fallthrough; 214 default: 215 drv_prep_add_interface(local, 216 ieee80211_vif_type_p2p(&sdata->vif)); 217 break; 218 } 219 220 return wdev; 221 } 222 223 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 224 { 225 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 226 227 return 0; 228 } 229 230 static int ieee80211_change_iface(struct wiphy *wiphy, 231 struct net_device *dev, 232 enum nl80211_iftype type, 233 struct vif_params *params) 234 { 235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 236 struct ieee80211_local *local = sdata->local; 237 struct sta_info *sta; 238 int ret; 239 240 lockdep_assert_wiphy(local->hw.wiphy); 241 242 ret = ieee80211_if_change_type(sdata, type); 243 if (ret) 244 return ret; 245 246 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 247 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 248 ieee80211_check_fast_rx_iface(sdata); 249 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 250 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 251 252 if (params->use_4addr == ifmgd->use_4addr) 253 return 0; 254 255 /* FIXME: no support for 4-addr MLO yet */ 256 if (ieee80211_vif_is_mld(&sdata->vif)) 257 return -EOPNOTSUPP; 258 259 sdata->u.mgd.use_4addr = params->use_4addr; 260 if (!ifmgd->associated) 261 return 0; 262 263 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 264 if (sta) 265 drv_sta_set_4addr(local, sdata, &sta->sta, 266 params->use_4addr); 267 268 if (params->use_4addr) 269 ieee80211_send_4addr_nullfunc(local, sdata); 270 } 271 272 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 273 ret = ieee80211_set_mon_options(sdata, params); 274 if (ret) 275 return ret; 276 } 277 278 return 0; 279 } 280 281 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 282 struct wireless_dev *wdev) 283 { 284 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 285 int ret; 286 287 lockdep_assert_wiphy(sdata->local->hw.wiphy); 288 289 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 290 if (ret < 0) 291 return ret; 292 293 return ieee80211_do_open(wdev, true); 294 } 295 296 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 297 struct wireless_dev *wdev) 298 { 299 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 300 } 301 302 static int ieee80211_start_nan(struct wiphy *wiphy, 303 struct wireless_dev *wdev, 304 struct cfg80211_nan_conf *conf) 305 { 306 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 307 int ret; 308 309 lockdep_assert_wiphy(sdata->local->hw.wiphy); 310 311 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 312 if (ret < 0) 313 return ret; 314 315 ret = ieee80211_do_open(wdev, true); 316 if (ret) 317 return ret; 318 319 ret = drv_start_nan(sdata->local, sdata, conf); 320 if (ret) 321 ieee80211_sdata_stop(sdata); 322 323 sdata->u.nan.conf = *conf; 324 325 return ret; 326 } 327 328 static void ieee80211_stop_nan(struct wiphy *wiphy, 329 struct wireless_dev *wdev) 330 { 331 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 332 333 drv_stop_nan(sdata->local, sdata); 334 ieee80211_sdata_stop(sdata); 335 } 336 337 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 338 struct wireless_dev *wdev, 339 struct cfg80211_nan_conf *conf, 340 u32 changes) 341 { 342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 343 struct cfg80211_nan_conf new_conf; 344 int ret = 0; 345 346 if (sdata->vif.type != NL80211_IFTYPE_NAN) 347 return -EOPNOTSUPP; 348 349 if (!ieee80211_sdata_running(sdata)) 350 return -ENETDOWN; 351 352 new_conf = sdata->u.nan.conf; 353 354 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 355 new_conf.master_pref = conf->master_pref; 356 357 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 358 new_conf.bands = conf->bands; 359 360 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 361 if (!ret) 362 sdata->u.nan.conf = new_conf; 363 364 return ret; 365 } 366 367 static int ieee80211_add_nan_func(struct wiphy *wiphy, 368 struct wireless_dev *wdev, 369 struct cfg80211_nan_func *nan_func) 370 { 371 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 372 int ret; 373 374 if (sdata->vif.type != NL80211_IFTYPE_NAN) 375 return -EOPNOTSUPP; 376 377 if (!ieee80211_sdata_running(sdata)) 378 return -ENETDOWN; 379 380 spin_lock_bh(&sdata->u.nan.func_lock); 381 382 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 383 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 384 GFP_ATOMIC); 385 spin_unlock_bh(&sdata->u.nan.func_lock); 386 387 if (ret < 0) 388 return ret; 389 390 nan_func->instance_id = ret; 391 392 WARN_ON(nan_func->instance_id == 0); 393 394 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 395 if (ret) { 396 spin_lock_bh(&sdata->u.nan.func_lock); 397 idr_remove(&sdata->u.nan.function_inst_ids, 398 nan_func->instance_id); 399 spin_unlock_bh(&sdata->u.nan.func_lock); 400 } 401 402 return ret; 403 } 404 405 static struct cfg80211_nan_func * 406 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 407 u64 cookie) 408 { 409 struct cfg80211_nan_func *func; 410 int id; 411 412 lockdep_assert_held(&sdata->u.nan.func_lock); 413 414 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 415 if (func->cookie == cookie) 416 return func; 417 } 418 419 return NULL; 420 } 421 422 static void ieee80211_del_nan_func(struct wiphy *wiphy, 423 struct wireless_dev *wdev, u64 cookie) 424 { 425 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 426 struct cfg80211_nan_func *func; 427 u8 instance_id = 0; 428 429 if (sdata->vif.type != NL80211_IFTYPE_NAN || 430 !ieee80211_sdata_running(sdata)) 431 return; 432 433 spin_lock_bh(&sdata->u.nan.func_lock); 434 435 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 436 if (func) 437 instance_id = func->instance_id; 438 439 spin_unlock_bh(&sdata->u.nan.func_lock); 440 441 if (instance_id) 442 drv_del_nan_func(sdata->local, sdata, instance_id); 443 } 444 445 static int ieee80211_set_noack_map(struct wiphy *wiphy, 446 struct net_device *dev, 447 u16 noack_map) 448 { 449 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 450 451 sdata->noack_map = noack_map; 452 453 ieee80211_check_fast_xmit_iface(sdata); 454 455 return 0; 456 } 457 458 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 459 const u8 *mac_addr, u8 key_idx) 460 { 461 struct ieee80211_local *local = sdata->local; 462 struct ieee80211_key *key; 463 struct sta_info *sta; 464 int ret = -EINVAL; 465 466 if (!wiphy_ext_feature_isset(local->hw.wiphy, 467 NL80211_EXT_FEATURE_EXT_KEY_ID)) 468 return -EINVAL; 469 470 sta = sta_info_get_bss(sdata, mac_addr); 471 472 if (!sta) 473 return -EINVAL; 474 475 if (sta->ptk_idx == key_idx) 476 return 0; 477 478 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 479 480 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 481 ret = ieee80211_set_tx_key(key); 482 483 return ret; 484 } 485 486 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 487 int link_id, u8 key_idx, bool pairwise, 488 const u8 *mac_addr, struct key_params *params) 489 { 490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 491 struct ieee80211_link_data *link = 492 ieee80211_link_or_deflink(sdata, link_id, false); 493 struct ieee80211_local *local = sdata->local; 494 struct sta_info *sta = NULL; 495 struct ieee80211_key *key; 496 int err; 497 498 lockdep_assert_wiphy(local->hw.wiphy); 499 500 if (!ieee80211_sdata_running(sdata)) 501 return -ENETDOWN; 502 503 if (IS_ERR(link)) 504 return PTR_ERR(link); 505 506 if (WARN_ON(pairwise && link_id >= 0)) 507 return -EINVAL; 508 509 if (pairwise && params->mode == NL80211_KEY_SET_TX) 510 return ieee80211_set_tx(sdata, mac_addr, key_idx); 511 512 /* reject WEP and TKIP keys if WEP failed to initialize */ 513 switch (params->cipher) { 514 case WLAN_CIPHER_SUITE_WEP40: 515 case WLAN_CIPHER_SUITE_TKIP: 516 case WLAN_CIPHER_SUITE_WEP104: 517 if (link_id >= 0) 518 return -EINVAL; 519 if (WARN_ON_ONCE(fips_enabled)) 520 return -EINVAL; 521 break; 522 default: 523 break; 524 } 525 526 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 527 params->key, params->seq_len, params->seq); 528 if (IS_ERR(key)) 529 return PTR_ERR(key); 530 531 if (pairwise) { 532 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 533 key->conf.link_id = -1; 534 } else { 535 key->conf.link_id = link->link_id; 536 } 537 538 if (params->mode == NL80211_KEY_NO_TX) 539 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 540 541 if (mac_addr) { 542 sta = sta_info_get_bss(sdata, mac_addr); 543 /* 544 * The ASSOC test makes sure the driver is ready to 545 * receive the key. When wpa_supplicant has roamed 546 * using FT, it attempts to set the key before 547 * association has completed, this rejects that attempt 548 * so it will set the key again after association. 549 * 550 * TODO: accept the key if we have a station entry and 551 * add it to the device after the station. 552 */ 553 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 554 ieee80211_key_free_unused(key); 555 return -ENOENT; 556 } 557 } 558 559 switch (sdata->vif.type) { 560 case NL80211_IFTYPE_STATION: 561 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 562 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 563 break; 564 case NL80211_IFTYPE_AP: 565 case NL80211_IFTYPE_AP_VLAN: 566 /* Keys without a station are used for TX only */ 567 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 568 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 569 break; 570 case NL80211_IFTYPE_ADHOC: 571 /* no MFP (yet) */ 572 break; 573 case NL80211_IFTYPE_MESH_POINT: 574 #ifdef CONFIG_MAC80211_MESH 575 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 576 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 577 break; 578 #endif 579 case NL80211_IFTYPE_WDS: 580 case NL80211_IFTYPE_MONITOR: 581 case NL80211_IFTYPE_P2P_DEVICE: 582 case NL80211_IFTYPE_NAN: 583 case NL80211_IFTYPE_UNSPECIFIED: 584 case NUM_NL80211_IFTYPES: 585 case NL80211_IFTYPE_P2P_CLIENT: 586 case NL80211_IFTYPE_P2P_GO: 587 case NL80211_IFTYPE_OCB: 588 /* shouldn't happen */ 589 WARN_ON_ONCE(1); 590 break; 591 } 592 593 err = ieee80211_key_link(key, link, sta); 594 /* KRACK protection, shouldn't happen but just silently accept key */ 595 if (err == -EALREADY) 596 err = 0; 597 598 return err; 599 } 600 601 static struct ieee80211_key * 602 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 603 u8 key_idx, bool pairwise, const u8 *mac_addr) 604 { 605 struct ieee80211_local *local __maybe_unused = sdata->local; 606 struct ieee80211_link_data *link = &sdata->deflink; 607 struct ieee80211_key *key; 608 609 if (link_id >= 0) { 610 link = sdata_dereference(sdata->link[link_id], sdata); 611 if (!link) 612 return NULL; 613 } 614 615 if (mac_addr) { 616 struct sta_info *sta; 617 struct link_sta_info *link_sta; 618 619 sta = sta_info_get_bss(sdata, mac_addr); 620 if (!sta) 621 return NULL; 622 623 if (link_id >= 0) { 624 link_sta = rcu_dereference_check(sta->link[link_id], 625 lockdep_is_held(&local->hw.wiphy->mtx)); 626 if (!link_sta) 627 return NULL; 628 } else { 629 link_sta = &sta->deflink; 630 } 631 632 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 633 return wiphy_dereference(local->hw.wiphy, 634 sta->ptk[key_idx]); 635 636 if (!pairwise && 637 key_idx < NUM_DEFAULT_KEYS + 638 NUM_DEFAULT_MGMT_KEYS + 639 NUM_DEFAULT_BEACON_KEYS) 640 return wiphy_dereference(local->hw.wiphy, 641 link_sta->gtk[key_idx]); 642 643 return NULL; 644 } 645 646 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 647 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 648 649 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 650 if (key) 651 return key; 652 653 /* or maybe it was a WEP key */ 654 if (key_idx < NUM_DEFAULT_KEYS) 655 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 656 657 return NULL; 658 } 659 660 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 661 int link_id, u8 key_idx, bool pairwise, 662 const u8 *mac_addr) 663 { 664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 665 struct ieee80211_local *local = sdata->local; 666 struct ieee80211_key *key; 667 668 lockdep_assert_wiphy(local->hw.wiphy); 669 670 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 671 if (!key) 672 return -ENOENT; 673 674 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 675 676 return 0; 677 } 678 679 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 680 int link_id, u8 key_idx, bool pairwise, 681 const u8 *mac_addr, void *cookie, 682 void (*callback)(void *cookie, 683 struct key_params *params)) 684 { 685 struct ieee80211_sub_if_data *sdata; 686 u8 seq[6] = {0}; 687 struct key_params params; 688 struct ieee80211_key *key; 689 u64 pn64; 690 u32 iv32; 691 u16 iv16; 692 int err = -ENOENT; 693 struct ieee80211_key_seq kseq = {}; 694 695 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 696 697 rcu_read_lock(); 698 699 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 700 if (!key) 701 goto out; 702 703 memset(¶ms, 0, sizeof(params)); 704 705 params.cipher = key->conf.cipher; 706 707 switch (key->conf.cipher) { 708 case WLAN_CIPHER_SUITE_TKIP: 709 pn64 = atomic64_read(&key->conf.tx_pn); 710 iv32 = TKIP_PN_TO_IV32(pn64); 711 iv16 = TKIP_PN_TO_IV16(pn64); 712 713 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 714 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 715 drv_get_key_seq(sdata->local, key, &kseq); 716 iv32 = kseq.tkip.iv32; 717 iv16 = kseq.tkip.iv16; 718 } 719 720 seq[0] = iv16 & 0xff; 721 seq[1] = (iv16 >> 8) & 0xff; 722 seq[2] = iv32 & 0xff; 723 seq[3] = (iv32 >> 8) & 0xff; 724 seq[4] = (iv32 >> 16) & 0xff; 725 seq[5] = (iv32 >> 24) & 0xff; 726 params.seq = seq; 727 params.seq_len = 6; 728 break; 729 case WLAN_CIPHER_SUITE_CCMP: 730 case WLAN_CIPHER_SUITE_CCMP_256: 731 case WLAN_CIPHER_SUITE_AES_CMAC: 732 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 733 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 734 offsetof(typeof(kseq), aes_cmac)); 735 fallthrough; 736 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 737 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 738 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 739 offsetof(typeof(kseq), aes_gmac)); 740 fallthrough; 741 case WLAN_CIPHER_SUITE_GCMP: 742 case WLAN_CIPHER_SUITE_GCMP_256: 743 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 744 offsetof(typeof(kseq), gcmp)); 745 746 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 747 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 748 drv_get_key_seq(sdata->local, key, &kseq); 749 memcpy(seq, kseq.ccmp.pn, 6); 750 } else { 751 pn64 = atomic64_read(&key->conf.tx_pn); 752 seq[0] = pn64; 753 seq[1] = pn64 >> 8; 754 seq[2] = pn64 >> 16; 755 seq[3] = pn64 >> 24; 756 seq[4] = pn64 >> 32; 757 seq[5] = pn64 >> 40; 758 } 759 params.seq = seq; 760 params.seq_len = 6; 761 break; 762 default: 763 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 764 break; 765 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 766 break; 767 drv_get_key_seq(sdata->local, key, &kseq); 768 params.seq = kseq.hw.seq; 769 params.seq_len = kseq.hw.seq_len; 770 break; 771 } 772 773 callback(cookie, ¶ms); 774 err = 0; 775 776 out: 777 rcu_read_unlock(); 778 return err; 779 } 780 781 static int ieee80211_config_default_key(struct wiphy *wiphy, 782 struct net_device *dev, 783 int link_id, u8 key_idx, bool uni, 784 bool multi) 785 { 786 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 787 struct ieee80211_link_data *link = 788 ieee80211_link_or_deflink(sdata, link_id, false); 789 790 if (IS_ERR(link)) 791 return PTR_ERR(link); 792 793 ieee80211_set_default_key(link, key_idx, uni, multi); 794 795 return 0; 796 } 797 798 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 799 struct net_device *dev, 800 int link_id, u8 key_idx) 801 { 802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 803 struct ieee80211_link_data *link = 804 ieee80211_link_or_deflink(sdata, link_id, true); 805 806 if (IS_ERR(link)) 807 return PTR_ERR(link); 808 809 ieee80211_set_default_mgmt_key(link, key_idx); 810 811 return 0; 812 } 813 814 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 815 struct net_device *dev, 816 int link_id, u8 key_idx) 817 { 818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 819 struct ieee80211_link_data *link = 820 ieee80211_link_or_deflink(sdata, link_id, true); 821 822 if (IS_ERR(link)) 823 return PTR_ERR(link); 824 825 ieee80211_set_default_beacon_key(link, key_idx); 826 827 return 0; 828 } 829 830 void sta_set_rate_info_tx(struct sta_info *sta, 831 const struct ieee80211_tx_rate *rate, 832 struct rate_info *rinfo) 833 { 834 rinfo->flags = 0; 835 if (rate->flags & IEEE80211_TX_RC_MCS) { 836 rinfo->flags |= RATE_INFO_FLAGS_MCS; 837 rinfo->mcs = rate->idx; 838 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 839 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 840 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 841 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 842 } else { 843 struct ieee80211_supported_band *sband; 844 845 sband = ieee80211_get_sband(sta->sdata); 846 WARN_ON_ONCE(sband && !sband->bitrates); 847 if (sband && sband->bitrates) 848 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 849 } 850 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 851 rinfo->bw = RATE_INFO_BW_40; 852 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 853 rinfo->bw = RATE_INFO_BW_80; 854 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 855 rinfo->bw = RATE_INFO_BW_160; 856 else 857 rinfo->bw = RATE_INFO_BW_20; 858 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 859 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 860 } 861 862 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 863 int idx, u8 *mac, struct station_info *sinfo) 864 { 865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 866 struct ieee80211_local *local = sdata->local; 867 struct sta_info *sta; 868 int ret = -ENOENT; 869 870 lockdep_assert_wiphy(local->hw.wiphy); 871 872 sta = sta_info_get_by_idx(sdata, idx); 873 if (sta) { 874 ret = 0; 875 memcpy(mac, sta->sta.addr, ETH_ALEN); 876 sta_set_sinfo(sta, sinfo, true); 877 } 878 879 return ret; 880 } 881 882 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 883 int idx, struct survey_info *survey) 884 { 885 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 886 887 return drv_get_survey(local, idx, survey); 888 } 889 890 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 891 const u8 *mac, struct station_info *sinfo) 892 { 893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 894 struct ieee80211_local *local = sdata->local; 895 struct sta_info *sta; 896 int ret = -ENOENT; 897 898 lockdep_assert_wiphy(local->hw.wiphy); 899 900 sta = sta_info_get_bss(sdata, mac); 901 if (sta) { 902 ret = 0; 903 sta_set_sinfo(sta, sinfo, true); 904 } 905 906 return ret; 907 } 908 909 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 910 struct net_device *dev, 911 struct cfg80211_chan_def *chandef) 912 { 913 struct ieee80211_local *local = wiphy_priv(wiphy); 914 struct ieee80211_sub_if_data *sdata; 915 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 916 int ret; 917 918 lockdep_assert_wiphy(local->hw.wiphy); 919 920 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 921 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 922 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 923 &chanreq.oper)) 924 return 0; 925 926 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 927 if (!sdata) 928 goto done; 929 } 930 931 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 932 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 933 &chanreq.oper)) 934 return 0; 935 936 ieee80211_link_release_channel(&sdata->deflink); 937 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 938 IEEE80211_CHANCTX_SHARED); 939 if (ret) 940 return ret; 941 done: 942 local->monitor_chanreq = chanreq; 943 return 0; 944 } 945 946 static int 947 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 948 const u8 *resp, size_t resp_len, 949 const struct ieee80211_csa_settings *csa, 950 const struct ieee80211_color_change_settings *cca, 951 struct ieee80211_link_data *link) 952 { 953 struct probe_resp *new, *old; 954 955 if (!resp || !resp_len) 956 return 1; 957 958 old = sdata_dereference(link->u.ap.probe_resp, sdata); 959 960 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 961 if (!new) 962 return -ENOMEM; 963 964 new->len = resp_len; 965 memcpy(new->data, resp, resp_len); 966 967 if (csa) 968 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 969 csa->n_counter_offsets_presp * 970 sizeof(new->cntdwn_counter_offsets[0])); 971 else if (cca) 972 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 973 974 rcu_assign_pointer(link->u.ap.probe_resp, new); 975 if (old) 976 kfree_rcu(old, rcu_head); 977 978 return 0; 979 } 980 981 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 982 struct cfg80211_fils_discovery *params, 983 struct ieee80211_link_data *link, 984 struct ieee80211_bss_conf *link_conf, 985 u64 *changed) 986 { 987 struct fils_discovery_data *new, *old = NULL; 988 struct ieee80211_fils_discovery *fd; 989 990 if (!params->update) 991 return 0; 992 993 fd = &link_conf->fils_discovery; 994 fd->min_interval = params->min_interval; 995 fd->max_interval = params->max_interval; 996 997 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 998 if (old) 999 kfree_rcu(old, rcu_head); 1000 1001 if (params->tmpl && params->tmpl_len) { 1002 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1003 if (!new) 1004 return -ENOMEM; 1005 new->len = params->tmpl_len; 1006 memcpy(new->data, params->tmpl, params->tmpl_len); 1007 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1008 } else { 1009 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1010 } 1011 1012 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1013 return 0; 1014 } 1015 1016 static int 1017 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1018 struct cfg80211_unsol_bcast_probe_resp *params, 1019 struct ieee80211_link_data *link, 1020 struct ieee80211_bss_conf *link_conf, 1021 u64 *changed) 1022 { 1023 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1024 1025 if (!params->update) 1026 return 0; 1027 1028 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1029 1030 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1031 if (old) 1032 kfree_rcu(old, rcu_head); 1033 1034 if (params->tmpl && params->tmpl_len) { 1035 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1036 if (!new) 1037 return -ENOMEM; 1038 new->len = params->tmpl_len; 1039 memcpy(new->data, params->tmpl, params->tmpl_len); 1040 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1041 } else { 1042 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1043 } 1044 1045 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1046 return 0; 1047 } 1048 1049 static int ieee80211_set_ftm_responder_params( 1050 struct ieee80211_sub_if_data *sdata, 1051 const u8 *lci, size_t lci_len, 1052 const u8 *civicloc, size_t civicloc_len, 1053 struct ieee80211_bss_conf *link_conf) 1054 { 1055 struct ieee80211_ftm_responder_params *new, *old; 1056 u8 *pos; 1057 int len; 1058 1059 if (!lci_len && !civicloc_len) 1060 return 0; 1061 1062 old = link_conf->ftmr_params; 1063 len = lci_len + civicloc_len; 1064 1065 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1066 if (!new) 1067 return -ENOMEM; 1068 1069 pos = (u8 *)(new + 1); 1070 if (lci_len) { 1071 new->lci_len = lci_len; 1072 new->lci = pos; 1073 memcpy(pos, lci, lci_len); 1074 pos += lci_len; 1075 } 1076 1077 if (civicloc_len) { 1078 new->civicloc_len = civicloc_len; 1079 new->civicloc = pos; 1080 memcpy(pos, civicloc, civicloc_len); 1081 pos += civicloc_len; 1082 } 1083 1084 link_conf->ftmr_params = new; 1085 kfree(old); 1086 1087 return 0; 1088 } 1089 1090 static int 1091 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1092 struct cfg80211_mbssid_elems *src) 1093 { 1094 int i, offset = 0; 1095 1096 dst->cnt = src->cnt; 1097 for (i = 0; i < src->cnt; i++) { 1098 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1099 dst->elem[i].len = src->elem[i].len; 1100 dst->elem[i].data = pos + offset; 1101 offset += dst->elem[i].len; 1102 } 1103 1104 return offset; 1105 } 1106 1107 static int 1108 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1109 struct cfg80211_rnr_elems *src) 1110 { 1111 int i, offset = 0; 1112 1113 for (i = 0; i < src->cnt; i++) { 1114 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1115 dst->elem[i].len = src->elem[i].len; 1116 dst->elem[i].data = pos + offset; 1117 offset += dst->elem[i].len; 1118 } 1119 dst->cnt = src->cnt; 1120 1121 return offset; 1122 } 1123 1124 static int 1125 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1126 struct ieee80211_link_data *link, 1127 struct cfg80211_beacon_data *params, 1128 const struct ieee80211_csa_settings *csa, 1129 const struct ieee80211_color_change_settings *cca, 1130 u64 *changed) 1131 { 1132 struct cfg80211_mbssid_elems *mbssid = NULL; 1133 struct cfg80211_rnr_elems *rnr = NULL; 1134 struct beacon_data *new, *old; 1135 int new_head_len, new_tail_len; 1136 int size, err; 1137 u64 _changed = BSS_CHANGED_BEACON; 1138 struct ieee80211_bss_conf *link_conf = link->conf; 1139 1140 old = sdata_dereference(link->u.ap.beacon, sdata); 1141 1142 /* Need to have a beacon head if we don't have one yet */ 1143 if (!params->head && !old) 1144 return -EINVAL; 1145 1146 /* new or old head? */ 1147 if (params->head) 1148 new_head_len = params->head_len; 1149 else 1150 new_head_len = old->head_len; 1151 1152 /* new or old tail? */ 1153 if (params->tail || !old) 1154 /* params->tail_len will be zero for !params->tail */ 1155 new_tail_len = params->tail_len; 1156 else 1157 new_tail_len = old->tail_len; 1158 1159 size = sizeof(*new) + new_head_len + new_tail_len; 1160 1161 /* new or old multiple BSSID elements? */ 1162 if (params->mbssid_ies) { 1163 mbssid = params->mbssid_ies; 1164 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1165 if (params->rnr_ies) { 1166 rnr = params->rnr_ies; 1167 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1168 } 1169 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1170 mbssid->cnt); 1171 } else if (old && old->mbssid_ies) { 1172 mbssid = old->mbssid_ies; 1173 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1174 if (old && old->rnr_ies) { 1175 rnr = old->rnr_ies; 1176 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1177 } 1178 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1179 mbssid->cnt); 1180 } 1181 1182 new = kzalloc(size, GFP_KERNEL); 1183 if (!new) 1184 return -ENOMEM; 1185 1186 /* start filling the new info now */ 1187 1188 /* 1189 * pointers go into the block we allocated, 1190 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1191 */ 1192 new->head = ((u8 *) new) + sizeof(*new); 1193 new->tail = new->head + new_head_len; 1194 new->head_len = new_head_len; 1195 new->tail_len = new_tail_len; 1196 /* copy in optional mbssid_ies */ 1197 if (mbssid) { 1198 u8 *pos = new->tail + new->tail_len; 1199 1200 new->mbssid_ies = (void *)pos; 1201 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1202 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1203 mbssid); 1204 if (rnr) { 1205 new->rnr_ies = (void *)pos; 1206 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1207 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1208 } 1209 /* update bssid_indicator */ 1210 link_conf->bssid_indicator = 1211 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1212 } 1213 1214 if (csa) { 1215 new->cntdwn_current_counter = csa->count; 1216 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1217 csa->n_counter_offsets_beacon * 1218 sizeof(new->cntdwn_counter_offsets[0])); 1219 } else if (cca) { 1220 new->cntdwn_current_counter = cca->count; 1221 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1222 } 1223 1224 /* copy in head */ 1225 if (params->head) 1226 memcpy(new->head, params->head, new_head_len); 1227 else 1228 memcpy(new->head, old->head, new_head_len); 1229 1230 /* copy in optional tail */ 1231 if (params->tail) 1232 memcpy(new->tail, params->tail, new_tail_len); 1233 else 1234 if (old) 1235 memcpy(new->tail, old->tail, new_tail_len); 1236 1237 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1238 params->probe_resp_len, csa, cca, link); 1239 if (err < 0) { 1240 kfree(new); 1241 return err; 1242 } 1243 if (err == 0) 1244 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1245 1246 if (params->ftm_responder != -1) { 1247 link_conf->ftm_responder = params->ftm_responder; 1248 err = ieee80211_set_ftm_responder_params(sdata, 1249 params->lci, 1250 params->lci_len, 1251 params->civicloc, 1252 params->civicloc_len, 1253 link_conf); 1254 1255 if (err < 0) { 1256 kfree(new); 1257 return err; 1258 } 1259 1260 _changed |= BSS_CHANGED_FTM_RESPONDER; 1261 } 1262 1263 rcu_assign_pointer(link->u.ap.beacon, new); 1264 sdata->u.ap.active = true; 1265 1266 if (old) 1267 kfree_rcu(old, rcu_head); 1268 1269 *changed |= _changed; 1270 return 0; 1271 } 1272 1273 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1274 { 1275 struct ieee80211_link_data *link; 1276 u8 link_id, num = 0; 1277 1278 if (sdata->vif.type != NL80211_IFTYPE_AP && 1279 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1280 return num; 1281 1282 if (!sdata->vif.valid_links) 1283 return num; 1284 1285 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1286 link = sdata_dereference(sdata->link[link_id], sdata); 1287 if (!link) 1288 continue; 1289 1290 if (sdata_dereference(link->u.ap.beacon, sdata)) 1291 num++; 1292 } 1293 1294 return num; 1295 } 1296 1297 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1298 struct cfg80211_ap_settings *params) 1299 { 1300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1301 struct ieee80211_local *local = sdata->local; 1302 struct beacon_data *old; 1303 struct ieee80211_sub_if_data *vlan; 1304 u64 changed = BSS_CHANGED_BEACON_INT | 1305 BSS_CHANGED_BEACON_ENABLED | 1306 BSS_CHANGED_BEACON | 1307 BSS_CHANGED_P2P_PS | 1308 BSS_CHANGED_TXPOWER | 1309 BSS_CHANGED_TWT; 1310 int i, err; 1311 int prev_beacon_int; 1312 unsigned int link_id = params->beacon.link_id; 1313 struct ieee80211_link_data *link; 1314 struct ieee80211_bss_conf *link_conf; 1315 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1316 1317 lockdep_assert_wiphy(local->hw.wiphy); 1318 1319 link = sdata_dereference(sdata->link[link_id], sdata); 1320 if (!link) 1321 return -ENOLINK; 1322 1323 link_conf = link->conf; 1324 1325 old = sdata_dereference(link->u.ap.beacon, sdata); 1326 if (old) 1327 return -EALREADY; 1328 1329 link->smps_mode = IEEE80211_SMPS_OFF; 1330 1331 link->needed_rx_chains = sdata->local->rx_chains; 1332 1333 prev_beacon_int = link_conf->beacon_int; 1334 link_conf->beacon_int = params->beacon_interval; 1335 1336 if (params->ht_cap) 1337 link_conf->ht_ldpc = 1338 params->ht_cap->cap_info & 1339 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1340 1341 if (params->vht_cap) { 1342 link_conf->vht_ldpc = 1343 params->vht_cap->vht_cap_info & 1344 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1345 link_conf->vht_su_beamformer = 1346 params->vht_cap->vht_cap_info & 1347 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1348 link_conf->vht_su_beamformee = 1349 params->vht_cap->vht_cap_info & 1350 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1351 link_conf->vht_mu_beamformer = 1352 params->vht_cap->vht_cap_info & 1353 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1354 link_conf->vht_mu_beamformee = 1355 params->vht_cap->vht_cap_info & 1356 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1357 } 1358 1359 if (params->he_cap && params->he_oper) { 1360 link_conf->he_support = true; 1361 link_conf->htc_trig_based_pkt_ext = 1362 le32_get_bits(params->he_oper->he_oper_params, 1363 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1364 link_conf->frame_time_rts_th = 1365 le32_get_bits(params->he_oper->he_oper_params, 1366 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1367 changed |= BSS_CHANGED_HE_OBSS_PD; 1368 1369 if (params->beacon.he_bss_color.enabled) 1370 changed |= BSS_CHANGED_HE_BSS_COLOR; 1371 } 1372 1373 if (params->he_cap) { 1374 link_conf->he_ldpc = 1375 params->he_cap->phy_cap_info[1] & 1376 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1377 link_conf->he_su_beamformer = 1378 params->he_cap->phy_cap_info[3] & 1379 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1380 link_conf->he_su_beamformee = 1381 params->he_cap->phy_cap_info[4] & 1382 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1383 link_conf->he_mu_beamformer = 1384 params->he_cap->phy_cap_info[4] & 1385 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1386 link_conf->he_full_ul_mumimo = 1387 params->he_cap->phy_cap_info[2] & 1388 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1389 } 1390 1391 if (params->eht_cap) { 1392 if (!link_conf->he_support) 1393 return -EOPNOTSUPP; 1394 1395 link_conf->eht_support = true; 1396 1397 link_conf->eht_su_beamformer = 1398 params->eht_cap->fixed.phy_cap_info[0] & 1399 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1400 link_conf->eht_su_beamformee = 1401 params->eht_cap->fixed.phy_cap_info[0] & 1402 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1403 link_conf->eht_mu_beamformer = 1404 params->eht_cap->fixed.phy_cap_info[7] & 1405 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1406 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1407 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1408 link_conf->eht_80mhz_full_bw_ul_mumimo = 1409 params->eht_cap->fixed.phy_cap_info[7] & 1410 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1411 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1412 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1413 } else { 1414 link_conf->eht_su_beamformer = false; 1415 link_conf->eht_su_beamformee = false; 1416 link_conf->eht_mu_beamformer = false; 1417 } 1418 1419 if (sdata->vif.type == NL80211_IFTYPE_AP && 1420 params->mbssid_config.tx_wdev) { 1421 err = ieee80211_set_ap_mbssid_options(sdata, 1422 ¶ms->mbssid_config, 1423 link_conf); 1424 if (err) 1425 return err; 1426 } 1427 1428 err = ieee80211_link_use_channel(link, &chanreq, 1429 IEEE80211_CHANCTX_SHARED); 1430 if (!err) 1431 ieee80211_link_copy_chanctx_to_vlans(link, false); 1432 if (err) { 1433 link_conf->beacon_int = prev_beacon_int; 1434 return err; 1435 } 1436 1437 /* 1438 * Apply control port protocol, this allows us to 1439 * not encrypt dynamic WEP control frames. 1440 */ 1441 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1442 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1443 sdata->control_port_over_nl80211 = 1444 params->crypto.control_port_over_nl80211; 1445 sdata->control_port_no_preauth = 1446 params->crypto.control_port_no_preauth; 1447 1448 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1449 vlan->control_port_protocol = 1450 params->crypto.control_port_ethertype; 1451 vlan->control_port_no_encrypt = 1452 params->crypto.control_port_no_encrypt; 1453 vlan->control_port_over_nl80211 = 1454 params->crypto.control_port_over_nl80211; 1455 vlan->control_port_no_preauth = 1456 params->crypto.control_port_no_preauth; 1457 } 1458 1459 link_conf->dtim_period = params->dtim_period; 1460 link_conf->enable_beacon = true; 1461 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1462 link_conf->twt_responder = params->twt_responder; 1463 link_conf->he_obss_pd = params->he_obss_pd; 1464 link_conf->he_bss_color = params->beacon.he_bss_color; 1465 sdata->vif.cfg.s1g = params->chandef.chan->band == 1466 NL80211_BAND_S1GHZ; 1467 1468 sdata->vif.cfg.ssid_len = params->ssid_len; 1469 if (params->ssid_len) 1470 memcpy(sdata->vif.cfg.ssid, params->ssid, 1471 params->ssid_len); 1472 link_conf->hidden_ssid = 1473 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1474 1475 memset(&link_conf->p2p_noa_attr, 0, 1476 sizeof(link_conf->p2p_noa_attr)); 1477 link_conf->p2p_noa_attr.oppps_ctwindow = 1478 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1479 if (params->p2p_opp_ps) 1480 link_conf->p2p_noa_attr.oppps_ctwindow |= 1481 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1482 1483 sdata->beacon_rate_set = false; 1484 if (wiphy_ext_feature_isset(local->hw.wiphy, 1485 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1486 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1487 sdata->beacon_rateidx_mask[i] = 1488 params->beacon_rate.control[i].legacy; 1489 if (sdata->beacon_rateidx_mask[i]) 1490 sdata->beacon_rate_set = true; 1491 } 1492 } 1493 1494 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1495 link_conf->beacon_tx_rate = params->beacon_rate; 1496 1497 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1498 &changed); 1499 if (err < 0) 1500 goto error; 1501 1502 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1503 link, link_conf, &changed); 1504 if (err < 0) 1505 goto error; 1506 1507 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1508 ¶ms->unsol_bcast_probe_resp, 1509 link, link_conf, &changed); 1510 if (err < 0) 1511 goto error; 1512 1513 err = drv_start_ap(sdata->local, sdata, link_conf); 1514 if (err) { 1515 old = sdata_dereference(link->u.ap.beacon, sdata); 1516 1517 if (old) 1518 kfree_rcu(old, rcu_head); 1519 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1520 1521 if (ieee80211_num_beaconing_links(sdata) == 0) 1522 sdata->u.ap.active = false; 1523 1524 goto error; 1525 } 1526 1527 ieee80211_recalc_dtim(local, sdata); 1528 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1529 ieee80211_link_info_change_notify(sdata, link, changed); 1530 1531 if (ieee80211_num_beaconing_links(sdata) <= 1) 1532 netif_carrier_on(dev); 1533 1534 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1535 netif_carrier_on(vlan->dev); 1536 1537 return 0; 1538 1539 error: 1540 ieee80211_link_release_channel(link); 1541 1542 return err; 1543 } 1544 1545 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1546 struct cfg80211_ap_update *params) 1547 1548 { 1549 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1550 struct ieee80211_link_data *link; 1551 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1552 struct beacon_data *old; 1553 int err; 1554 struct ieee80211_bss_conf *link_conf; 1555 u64 changed = 0; 1556 1557 lockdep_assert_wiphy(wiphy); 1558 1559 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1560 if (!link) 1561 return -ENOLINK; 1562 1563 link_conf = link->conf; 1564 1565 /* don't allow changing the beacon while a countdown is in place - offset 1566 * of channel switch counter may change 1567 */ 1568 if (link_conf->csa_active || link_conf->color_change_active) 1569 return -EBUSY; 1570 1571 old = sdata_dereference(link->u.ap.beacon, sdata); 1572 if (!old) 1573 return -ENOENT; 1574 1575 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1576 &changed); 1577 if (err < 0) 1578 return err; 1579 1580 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1581 link, link_conf, &changed); 1582 if (err < 0) 1583 return err; 1584 1585 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1586 ¶ms->unsol_bcast_probe_resp, 1587 link, link_conf, &changed); 1588 if (err < 0) 1589 return err; 1590 1591 if (beacon->he_bss_color_valid && 1592 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1593 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1594 changed |= BSS_CHANGED_HE_BSS_COLOR; 1595 } 1596 1597 ieee80211_link_info_change_notify(sdata, link, changed); 1598 return 0; 1599 } 1600 1601 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1602 { 1603 if (!link->u.ap.next_beacon) 1604 return; 1605 1606 kfree(link->u.ap.next_beacon->mbssid_ies); 1607 kfree(link->u.ap.next_beacon->rnr_ies); 1608 kfree(link->u.ap.next_beacon); 1609 link->u.ap.next_beacon = NULL; 1610 } 1611 1612 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1613 unsigned int link_id) 1614 { 1615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1616 struct ieee80211_sub_if_data *vlan; 1617 struct ieee80211_local *local = sdata->local; 1618 struct beacon_data *old_beacon; 1619 struct probe_resp *old_probe_resp; 1620 struct fils_discovery_data *old_fils_discovery; 1621 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1622 struct cfg80211_chan_def chandef; 1623 struct ieee80211_link_data *link = 1624 sdata_dereference(sdata->link[link_id], sdata); 1625 struct ieee80211_bss_conf *link_conf = link->conf; 1626 LIST_HEAD(keys); 1627 1628 lockdep_assert_wiphy(local->hw.wiphy); 1629 1630 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1631 if (!old_beacon) 1632 return -ENOENT; 1633 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1634 sdata); 1635 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1636 sdata); 1637 old_unsol_bcast_probe_resp = 1638 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1639 sdata); 1640 1641 /* abort any running channel switch or color change */ 1642 link_conf->csa_active = false; 1643 link_conf->color_change_active = false; 1644 ieee80211_vif_unblock_queues_csa(sdata); 1645 1646 ieee80211_free_next_beacon(link); 1647 1648 /* turn off carrier for this interface and dependent VLANs */ 1649 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1650 netif_carrier_off(vlan->dev); 1651 1652 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1653 netif_carrier_off(dev); 1654 sdata->u.ap.active = false; 1655 } 1656 1657 /* remove beacon and probe response */ 1658 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1659 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1660 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1661 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1662 kfree_rcu(old_beacon, rcu_head); 1663 if (old_probe_resp) 1664 kfree_rcu(old_probe_resp, rcu_head); 1665 if (old_fils_discovery) 1666 kfree_rcu(old_fils_discovery, rcu_head); 1667 if (old_unsol_bcast_probe_resp) 1668 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1669 1670 kfree(link_conf->ftmr_params); 1671 link_conf->ftmr_params = NULL; 1672 1673 sdata->vif.mbssid_tx_vif = NULL; 1674 link_conf->bssid_index = 0; 1675 link_conf->nontransmitted = false; 1676 link_conf->ema_ap = false; 1677 link_conf->bssid_indicator = 0; 1678 1679 __sta_info_flush(sdata, true, link_id, NULL); 1680 1681 ieee80211_remove_link_keys(link, &keys); 1682 if (!list_empty(&keys)) { 1683 synchronize_net(); 1684 ieee80211_free_key_list(local, &keys); 1685 } 1686 1687 link_conf->enable_beacon = false; 1688 sdata->beacon_rate_set = false; 1689 sdata->vif.cfg.ssid_len = 0; 1690 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1691 ieee80211_link_info_change_notify(sdata, link, 1692 BSS_CHANGED_BEACON_ENABLED); 1693 1694 if (sdata->wdev.links[link_id].cac_started) { 1695 chandef = link_conf->chanreq.oper; 1696 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1697 cfg80211_cac_event(sdata->dev, &chandef, 1698 NL80211_RADAR_CAC_ABORTED, 1699 GFP_KERNEL, link_id); 1700 } 1701 1702 drv_stop_ap(sdata->local, sdata, link_conf); 1703 1704 /* free all potentially still buffered bcast frames */ 1705 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1706 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1707 1708 ieee80211_link_copy_chanctx_to_vlans(link, true); 1709 ieee80211_link_release_channel(link); 1710 1711 return 0; 1712 } 1713 1714 static int sta_apply_auth_flags(struct ieee80211_local *local, 1715 struct sta_info *sta, 1716 u32 mask, u32 set) 1717 { 1718 int ret; 1719 1720 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1721 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1722 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1723 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1724 if (ret) 1725 return ret; 1726 } 1727 1728 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1729 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1730 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1731 /* 1732 * When peer becomes associated, init rate control as 1733 * well. Some drivers require rate control initialized 1734 * before drv_sta_state() is called. 1735 */ 1736 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1737 rate_control_rate_init_all_links(sta); 1738 1739 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1740 if (ret) 1741 return ret; 1742 } 1743 1744 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1745 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1746 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1747 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1748 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1749 else 1750 ret = 0; 1751 if (ret) 1752 return ret; 1753 } 1754 1755 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1756 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1757 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1758 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1759 if (ret) 1760 return ret; 1761 } 1762 1763 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1764 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1765 test_sta_flag(sta, WLAN_STA_AUTH)) { 1766 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1767 if (ret) 1768 return ret; 1769 } 1770 1771 return 0; 1772 } 1773 1774 static void sta_apply_mesh_params(struct ieee80211_local *local, 1775 struct sta_info *sta, 1776 struct station_parameters *params) 1777 { 1778 #ifdef CONFIG_MAC80211_MESH 1779 struct ieee80211_sub_if_data *sdata = sta->sdata; 1780 u64 changed = 0; 1781 1782 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1783 switch (params->plink_state) { 1784 case NL80211_PLINK_ESTAB: 1785 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1786 changed = mesh_plink_inc_estab_count(sdata); 1787 sta->mesh->plink_state = params->plink_state; 1788 sta->mesh->aid = params->peer_aid; 1789 1790 ieee80211_mps_sta_status_update(sta); 1791 changed |= ieee80211_mps_set_sta_local_pm(sta, 1792 sdata->u.mesh.mshcfg.power_mode); 1793 1794 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1795 /* init at low value */ 1796 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1797 1798 break; 1799 case NL80211_PLINK_LISTEN: 1800 case NL80211_PLINK_BLOCKED: 1801 case NL80211_PLINK_OPN_SNT: 1802 case NL80211_PLINK_OPN_RCVD: 1803 case NL80211_PLINK_CNF_RCVD: 1804 case NL80211_PLINK_HOLDING: 1805 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1806 changed = mesh_plink_dec_estab_count(sdata); 1807 sta->mesh->plink_state = params->plink_state; 1808 1809 ieee80211_mps_sta_status_update(sta); 1810 changed |= ieee80211_mps_set_sta_local_pm(sta, 1811 NL80211_MESH_POWER_UNKNOWN); 1812 break; 1813 default: 1814 /* nothing */ 1815 break; 1816 } 1817 } 1818 1819 switch (params->plink_action) { 1820 case NL80211_PLINK_ACTION_NO_ACTION: 1821 /* nothing */ 1822 break; 1823 case NL80211_PLINK_ACTION_OPEN: 1824 changed |= mesh_plink_open(sta); 1825 break; 1826 case NL80211_PLINK_ACTION_BLOCK: 1827 changed |= mesh_plink_block(sta); 1828 break; 1829 } 1830 1831 if (params->local_pm) 1832 changed |= ieee80211_mps_set_sta_local_pm(sta, 1833 params->local_pm); 1834 1835 ieee80211_mbss_info_change_notify(sdata, changed); 1836 #endif 1837 } 1838 1839 enum sta_link_apply_mode { 1840 STA_LINK_MODE_NEW, 1841 STA_LINK_MODE_STA_MODIFY, 1842 STA_LINK_MODE_LINK_MODIFY, 1843 }; 1844 1845 static int sta_link_apply_parameters(struct ieee80211_local *local, 1846 struct sta_info *sta, 1847 enum sta_link_apply_mode mode, 1848 struct link_station_parameters *params) 1849 { 1850 struct ieee80211_supported_band *sband; 1851 struct ieee80211_sub_if_data *sdata = sta->sdata; 1852 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1853 struct ieee80211_link_data *link = 1854 sdata_dereference(sdata->link[link_id], sdata); 1855 struct link_sta_info *link_sta = 1856 rcu_dereference_protected(sta->link[link_id], 1857 lockdep_is_held(&local->hw.wiphy->mtx)); 1858 bool changes = params->link_mac || 1859 params->txpwr_set || 1860 params->supported_rates_len || 1861 params->ht_capa || 1862 params->vht_capa || 1863 params->he_capa || 1864 params->eht_capa || 1865 params->opmode_notif_used; 1866 1867 switch (mode) { 1868 case STA_LINK_MODE_NEW: 1869 if (!params->link_mac) 1870 return -EINVAL; 1871 break; 1872 case STA_LINK_MODE_LINK_MODIFY: 1873 break; 1874 case STA_LINK_MODE_STA_MODIFY: 1875 if (params->link_id >= 0) 1876 break; 1877 if (!changes) 1878 return 0; 1879 break; 1880 } 1881 1882 if (!link || !link_sta) 1883 return -EINVAL; 1884 1885 sband = ieee80211_get_link_sband(link); 1886 if (!sband) 1887 return -EINVAL; 1888 1889 if (params->link_mac) { 1890 if (mode == STA_LINK_MODE_NEW) { 1891 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1892 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1893 } else if (!ether_addr_equal(link_sta->addr, 1894 params->link_mac)) { 1895 return -EINVAL; 1896 } 1897 } 1898 1899 if (params->txpwr_set) { 1900 int ret; 1901 1902 link_sta->pub->txpwr.type = params->txpwr.type; 1903 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1904 link_sta->pub->txpwr.power = params->txpwr.power; 1905 ret = drv_sta_set_txpwr(local, sdata, sta); 1906 if (ret) 1907 return ret; 1908 } 1909 1910 if (params->supported_rates && 1911 params->supported_rates_len) { 1912 ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1913 sband, params->supported_rates, 1914 params->supported_rates_len, 1915 &link_sta->pub->supp_rates[sband->band]); 1916 } 1917 1918 if (params->ht_capa) 1919 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1920 params->ht_capa, link_sta); 1921 1922 /* VHT can override some HT caps such as the A-MSDU max length */ 1923 if (params->vht_capa) 1924 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1925 params->vht_capa, NULL, 1926 link_sta); 1927 1928 if (params->he_capa) 1929 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1930 (void *)params->he_capa, 1931 params->he_capa_len, 1932 (void *)params->he_6ghz_capa, 1933 link_sta); 1934 1935 if (params->he_capa && params->eht_capa) 1936 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1937 (u8 *)params->he_capa, 1938 params->he_capa_len, 1939 params->eht_capa, 1940 params->eht_capa_len, 1941 link_sta); 1942 1943 ieee80211_sta_init_nss(link_sta); 1944 1945 if (params->opmode_notif_used) { 1946 /* returned value is only needed for rc update, but the 1947 * rc isn't initialized here yet, so ignore it 1948 */ 1949 __ieee80211_vht_handle_opmode(sdata, link_sta, 1950 params->opmode_notif, 1951 sband->band); 1952 } 1953 1954 return 0; 1955 } 1956 1957 static int sta_apply_parameters(struct ieee80211_local *local, 1958 struct sta_info *sta, 1959 struct station_parameters *params) 1960 { 1961 struct ieee80211_sub_if_data *sdata = sta->sdata; 1962 u32 mask, set; 1963 int ret = 0; 1964 1965 mask = params->sta_flags_mask; 1966 set = params->sta_flags_set; 1967 1968 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1969 /* 1970 * In mesh mode, ASSOCIATED isn't part of the nl80211 1971 * API but must follow AUTHENTICATED for driver state. 1972 */ 1973 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1974 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1975 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1976 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1977 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1978 /* 1979 * TDLS -- everything follows authorized, but 1980 * only becoming authorized is possible, not 1981 * going back 1982 */ 1983 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1984 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1985 BIT(NL80211_STA_FLAG_ASSOCIATED); 1986 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1987 BIT(NL80211_STA_FLAG_ASSOCIATED); 1988 } 1989 } 1990 1991 if (mask & BIT(NL80211_STA_FLAG_WME) && 1992 local->hw.queues >= IEEE80211_NUM_ACS) 1993 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1994 1995 /* auth flags will be set later for TDLS, 1996 * and for unassociated stations that move to associated */ 1997 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1998 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1999 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2000 ret = sta_apply_auth_flags(local, sta, mask, set); 2001 if (ret) 2002 return ret; 2003 } 2004 2005 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2006 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2007 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2008 else 2009 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2010 } 2011 2012 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2013 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2014 if (set & BIT(NL80211_STA_FLAG_MFP)) 2015 set_sta_flag(sta, WLAN_STA_MFP); 2016 else 2017 clear_sta_flag(sta, WLAN_STA_MFP); 2018 } 2019 2020 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2021 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2022 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2023 else 2024 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2025 } 2026 2027 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2028 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2029 2030 /* mark TDLS channel switch support, if the AP allows it */ 2031 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2032 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2033 params->ext_capab_len >= 4 && 2034 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2035 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2036 2037 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2038 !sdata->u.mgd.tdls_wider_bw_prohibited && 2039 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2040 params->ext_capab_len >= 8 && 2041 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2042 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2043 2044 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2045 sta->sta.uapsd_queues = params->uapsd_queues; 2046 sta->sta.max_sp = params->max_sp; 2047 } 2048 2049 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2050 params->ext_capab_len); 2051 2052 /* 2053 * cfg80211 validates this (1-2007) and allows setting the AID 2054 * only when creating a new station entry 2055 */ 2056 if (params->aid) 2057 sta->sta.aid = params->aid; 2058 2059 /* 2060 * Some of the following updates would be racy if called on an 2061 * existing station, via ieee80211_change_station(). However, 2062 * all such changes are rejected by cfg80211 except for updates 2063 * changing the supported rates on an existing but not yet used 2064 * TDLS peer. 2065 */ 2066 2067 if (params->listen_interval >= 0) 2068 sta->listen_interval = params->listen_interval; 2069 2070 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2071 ¶ms->link_sta_params); 2072 if (ret) 2073 return ret; 2074 2075 if (params->support_p2p_ps >= 0) 2076 sta->sta.support_p2p_ps = params->support_p2p_ps; 2077 2078 if (ieee80211_vif_is_mesh(&sdata->vif)) 2079 sta_apply_mesh_params(local, sta, params); 2080 2081 if (params->airtime_weight) 2082 sta->airtime_weight = params->airtime_weight; 2083 2084 /* set the STA state after all sta info from usermode has been set */ 2085 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2086 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2087 ret = sta_apply_auth_flags(local, sta, mask, set); 2088 if (ret) 2089 return ret; 2090 } 2091 2092 /* Mark the STA as MLO if MLD MAC address is available */ 2093 if (params->link_sta_params.mld_mac) 2094 sta->sta.mlo = true; 2095 2096 return 0; 2097 } 2098 2099 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2100 const u8 *mac, 2101 struct station_parameters *params) 2102 { 2103 struct ieee80211_local *local = wiphy_priv(wiphy); 2104 struct sta_info *sta; 2105 struct ieee80211_sub_if_data *sdata; 2106 int err; 2107 2108 lockdep_assert_wiphy(local->hw.wiphy); 2109 2110 if (params->vlan) { 2111 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2112 2113 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2114 sdata->vif.type != NL80211_IFTYPE_AP) 2115 return -EINVAL; 2116 } else 2117 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2118 2119 if (ether_addr_equal(mac, sdata->vif.addr)) 2120 return -EINVAL; 2121 2122 if (!is_valid_ether_addr(mac)) 2123 return -EINVAL; 2124 2125 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2126 sdata->vif.type == NL80211_IFTYPE_STATION && 2127 !sdata->u.mgd.associated) 2128 return -EINVAL; 2129 2130 /* 2131 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2132 * but we need to have a link_mac in that case as well, so use the 2133 * STA's MAC address in that case. 2134 */ 2135 if (params->link_sta_params.link_id >= 0) 2136 sta = sta_info_alloc_with_link(sdata, mac, 2137 params->link_sta_params.link_id, 2138 params->link_sta_params.link_mac ?: mac, 2139 GFP_KERNEL); 2140 else 2141 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2142 2143 if (!sta) 2144 return -ENOMEM; 2145 2146 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2147 sta->sta.tdls = true; 2148 2149 /* Though the mutex is not needed here (since the station is not 2150 * visible yet), sta_apply_parameters (and inner functions) require 2151 * the mutex due to other paths. 2152 */ 2153 err = sta_apply_parameters(local, sta, params); 2154 if (err) { 2155 sta_info_free(local, sta); 2156 return err; 2157 } 2158 2159 /* 2160 * for TDLS and for unassociated station, rate control should be 2161 * initialized only when rates are known and station is marked 2162 * authorized/associated 2163 */ 2164 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2165 test_sta_flag(sta, WLAN_STA_ASSOC)) 2166 rate_control_rate_init_all_links(sta); 2167 2168 return sta_info_insert(sta); 2169 } 2170 2171 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2172 struct station_del_parameters *params) 2173 { 2174 struct ieee80211_sub_if_data *sdata; 2175 2176 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2177 2178 if (params->mac) 2179 return sta_info_destroy_addr_bss(sdata, params->mac); 2180 2181 sta_info_flush(sdata, params->link_id); 2182 return 0; 2183 } 2184 2185 static int ieee80211_change_station(struct wiphy *wiphy, 2186 struct net_device *dev, const u8 *mac, 2187 struct station_parameters *params) 2188 { 2189 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2190 struct ieee80211_local *local = wiphy_priv(wiphy); 2191 struct sta_info *sta; 2192 struct ieee80211_sub_if_data *vlansdata; 2193 enum cfg80211_station_type statype; 2194 int err; 2195 2196 lockdep_assert_wiphy(local->hw.wiphy); 2197 2198 sta = sta_info_get_bss(sdata, mac); 2199 if (!sta) 2200 return -ENOENT; 2201 2202 switch (sdata->vif.type) { 2203 case NL80211_IFTYPE_MESH_POINT: 2204 if (sdata->u.mesh.user_mpm) 2205 statype = CFG80211_STA_MESH_PEER_USER; 2206 else 2207 statype = CFG80211_STA_MESH_PEER_KERNEL; 2208 break; 2209 case NL80211_IFTYPE_ADHOC: 2210 statype = CFG80211_STA_IBSS; 2211 break; 2212 case NL80211_IFTYPE_STATION: 2213 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2214 statype = CFG80211_STA_AP_STA; 2215 break; 2216 } 2217 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2218 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2219 else 2220 statype = CFG80211_STA_TDLS_PEER_SETUP; 2221 break; 2222 case NL80211_IFTYPE_AP: 2223 case NL80211_IFTYPE_AP_VLAN: 2224 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2225 statype = CFG80211_STA_AP_CLIENT; 2226 else 2227 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2228 break; 2229 default: 2230 return -EOPNOTSUPP; 2231 } 2232 2233 err = cfg80211_check_station_change(wiphy, params, statype); 2234 if (err) 2235 return err; 2236 2237 if (params->vlan && params->vlan != sta->sdata->dev) { 2238 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2239 2240 if (params->vlan->ieee80211_ptr->use_4addr) { 2241 if (vlansdata->u.vlan.sta) 2242 return -EBUSY; 2243 2244 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2245 __ieee80211_check_fast_rx_iface(vlansdata); 2246 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2247 } 2248 2249 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2250 sta->sdata->u.vlan.sta) 2251 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2252 2253 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2254 ieee80211_vif_dec_num_mcast(sta->sdata); 2255 2256 sta->sdata = vlansdata; 2257 ieee80211_check_fast_rx(sta); 2258 ieee80211_check_fast_xmit(sta); 2259 2260 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2261 ieee80211_vif_inc_num_mcast(sta->sdata); 2262 cfg80211_send_layer2_update(sta->sdata->dev, 2263 sta->sta.addr); 2264 } 2265 } 2266 2267 err = sta_apply_parameters(local, sta, params); 2268 if (err) 2269 return err; 2270 2271 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2272 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2273 ieee80211_recalc_ps(local); 2274 ieee80211_recalc_ps_vif(sdata); 2275 } 2276 2277 return 0; 2278 } 2279 2280 #ifdef CONFIG_MAC80211_MESH 2281 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2282 const u8 *dst, const u8 *next_hop) 2283 { 2284 struct ieee80211_sub_if_data *sdata; 2285 struct mesh_path *mpath; 2286 struct sta_info *sta; 2287 2288 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2289 2290 rcu_read_lock(); 2291 sta = sta_info_get(sdata, next_hop); 2292 if (!sta) { 2293 rcu_read_unlock(); 2294 return -ENOENT; 2295 } 2296 2297 mpath = mesh_path_add(sdata, dst); 2298 if (IS_ERR(mpath)) { 2299 rcu_read_unlock(); 2300 return PTR_ERR(mpath); 2301 } 2302 2303 mesh_path_fix_nexthop(mpath, sta); 2304 2305 rcu_read_unlock(); 2306 return 0; 2307 } 2308 2309 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2310 const u8 *dst) 2311 { 2312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2313 2314 if (dst) 2315 return mesh_path_del(sdata, dst); 2316 2317 mesh_path_flush_by_iface(sdata); 2318 return 0; 2319 } 2320 2321 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2322 const u8 *dst, const u8 *next_hop) 2323 { 2324 struct ieee80211_sub_if_data *sdata; 2325 struct mesh_path *mpath; 2326 struct sta_info *sta; 2327 2328 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2329 2330 rcu_read_lock(); 2331 2332 sta = sta_info_get(sdata, next_hop); 2333 if (!sta) { 2334 rcu_read_unlock(); 2335 return -ENOENT; 2336 } 2337 2338 mpath = mesh_path_lookup(sdata, dst); 2339 if (!mpath) { 2340 rcu_read_unlock(); 2341 return -ENOENT; 2342 } 2343 2344 mesh_path_fix_nexthop(mpath, sta); 2345 2346 rcu_read_unlock(); 2347 return 0; 2348 } 2349 2350 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2351 struct mpath_info *pinfo) 2352 { 2353 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2354 2355 if (next_hop_sta) 2356 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2357 else 2358 eth_zero_addr(next_hop); 2359 2360 memset(pinfo, 0, sizeof(*pinfo)); 2361 2362 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2363 2364 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2365 MPATH_INFO_SN | 2366 MPATH_INFO_METRIC | 2367 MPATH_INFO_EXPTIME | 2368 MPATH_INFO_DISCOVERY_TIMEOUT | 2369 MPATH_INFO_DISCOVERY_RETRIES | 2370 MPATH_INFO_FLAGS | 2371 MPATH_INFO_HOP_COUNT | 2372 MPATH_INFO_PATH_CHANGE; 2373 2374 pinfo->frame_qlen = mpath->frame_queue.qlen; 2375 pinfo->sn = mpath->sn; 2376 pinfo->metric = mpath->metric; 2377 if (time_before(jiffies, mpath->exp_time)) 2378 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2379 pinfo->discovery_timeout = 2380 jiffies_to_msecs(mpath->discovery_timeout); 2381 pinfo->discovery_retries = mpath->discovery_retries; 2382 if (mpath->flags & MESH_PATH_ACTIVE) 2383 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2384 if (mpath->flags & MESH_PATH_RESOLVING) 2385 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2386 if (mpath->flags & MESH_PATH_SN_VALID) 2387 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2388 if (mpath->flags & MESH_PATH_FIXED) 2389 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2390 if (mpath->flags & MESH_PATH_RESOLVED) 2391 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2392 pinfo->hop_count = mpath->hop_count; 2393 pinfo->path_change_count = mpath->path_change_count; 2394 } 2395 2396 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2397 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2398 2399 { 2400 struct ieee80211_sub_if_data *sdata; 2401 struct mesh_path *mpath; 2402 2403 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2404 2405 rcu_read_lock(); 2406 mpath = mesh_path_lookup(sdata, dst); 2407 if (!mpath) { 2408 rcu_read_unlock(); 2409 return -ENOENT; 2410 } 2411 memcpy(dst, mpath->dst, ETH_ALEN); 2412 mpath_set_pinfo(mpath, next_hop, pinfo); 2413 rcu_read_unlock(); 2414 return 0; 2415 } 2416 2417 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2418 int idx, u8 *dst, u8 *next_hop, 2419 struct mpath_info *pinfo) 2420 { 2421 struct ieee80211_sub_if_data *sdata; 2422 struct mesh_path *mpath; 2423 2424 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2425 2426 rcu_read_lock(); 2427 mpath = mesh_path_lookup_by_idx(sdata, idx); 2428 if (!mpath) { 2429 rcu_read_unlock(); 2430 return -ENOENT; 2431 } 2432 memcpy(dst, mpath->dst, ETH_ALEN); 2433 mpath_set_pinfo(mpath, next_hop, pinfo); 2434 rcu_read_unlock(); 2435 return 0; 2436 } 2437 2438 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2439 struct mpath_info *pinfo) 2440 { 2441 memset(pinfo, 0, sizeof(*pinfo)); 2442 memcpy(mpp, mpath->mpp, ETH_ALEN); 2443 2444 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2445 } 2446 2447 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2448 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2449 2450 { 2451 struct ieee80211_sub_if_data *sdata; 2452 struct mesh_path *mpath; 2453 2454 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2455 2456 rcu_read_lock(); 2457 mpath = mpp_path_lookup(sdata, dst); 2458 if (!mpath) { 2459 rcu_read_unlock(); 2460 return -ENOENT; 2461 } 2462 memcpy(dst, mpath->dst, ETH_ALEN); 2463 mpp_set_pinfo(mpath, mpp, pinfo); 2464 rcu_read_unlock(); 2465 return 0; 2466 } 2467 2468 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2469 int idx, u8 *dst, u8 *mpp, 2470 struct mpath_info *pinfo) 2471 { 2472 struct ieee80211_sub_if_data *sdata; 2473 struct mesh_path *mpath; 2474 2475 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2476 2477 rcu_read_lock(); 2478 mpath = mpp_path_lookup_by_idx(sdata, idx); 2479 if (!mpath) { 2480 rcu_read_unlock(); 2481 return -ENOENT; 2482 } 2483 memcpy(dst, mpath->dst, ETH_ALEN); 2484 mpp_set_pinfo(mpath, mpp, pinfo); 2485 rcu_read_unlock(); 2486 return 0; 2487 } 2488 2489 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2490 struct net_device *dev, 2491 struct mesh_config *conf) 2492 { 2493 struct ieee80211_sub_if_data *sdata; 2494 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2495 2496 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2497 return 0; 2498 } 2499 2500 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2501 { 2502 return (mask >> (parm-1)) & 0x1; 2503 } 2504 2505 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2506 const struct mesh_setup *setup) 2507 { 2508 u8 *new_ie; 2509 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2510 struct ieee80211_sub_if_data, u.mesh); 2511 int i; 2512 2513 /* allocate information elements */ 2514 new_ie = NULL; 2515 2516 if (setup->ie_len) { 2517 new_ie = kmemdup(setup->ie, setup->ie_len, 2518 GFP_KERNEL); 2519 if (!new_ie) 2520 return -ENOMEM; 2521 } 2522 ifmsh->ie_len = setup->ie_len; 2523 ifmsh->ie = new_ie; 2524 2525 /* now copy the rest of the setup parameters */ 2526 ifmsh->mesh_id_len = setup->mesh_id_len; 2527 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2528 ifmsh->mesh_sp_id = setup->sync_method; 2529 ifmsh->mesh_pp_id = setup->path_sel_proto; 2530 ifmsh->mesh_pm_id = setup->path_metric; 2531 ifmsh->user_mpm = setup->user_mpm; 2532 ifmsh->mesh_auth_id = setup->auth_id; 2533 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2534 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2535 if (setup->is_authenticated) 2536 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2537 if (setup->is_secure) 2538 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2539 2540 /* mcast rate setting in Mesh Node */ 2541 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2542 sizeof(setup->mcast_rate)); 2543 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2544 2545 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2546 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2547 2548 sdata->beacon_rate_set = false; 2549 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2550 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2551 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2552 sdata->beacon_rateidx_mask[i] = 2553 setup->beacon_rate.control[i].legacy; 2554 if (sdata->beacon_rateidx_mask[i]) 2555 sdata->beacon_rate_set = true; 2556 } 2557 } 2558 2559 return 0; 2560 } 2561 2562 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2563 struct net_device *dev, u32 mask, 2564 const struct mesh_config *nconf) 2565 { 2566 struct mesh_config *conf; 2567 struct ieee80211_sub_if_data *sdata; 2568 struct ieee80211_if_mesh *ifmsh; 2569 2570 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2571 ifmsh = &sdata->u.mesh; 2572 2573 /* Set the config options which we are interested in setting */ 2574 conf = &(sdata->u.mesh.mshcfg); 2575 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2576 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2577 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2578 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2579 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2580 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2581 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2582 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2583 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2584 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2585 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2586 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2587 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2588 conf->element_ttl = nconf->element_ttl; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2590 if (ifmsh->user_mpm) 2591 return -EBUSY; 2592 conf->auto_open_plinks = nconf->auto_open_plinks; 2593 } 2594 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2595 conf->dot11MeshNbrOffsetMaxNeighbor = 2596 nconf->dot11MeshNbrOffsetMaxNeighbor; 2597 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2598 conf->dot11MeshHWMPmaxPREQretries = 2599 nconf->dot11MeshHWMPmaxPREQretries; 2600 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2601 conf->path_refresh_time = nconf->path_refresh_time; 2602 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2603 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2605 conf->dot11MeshHWMPactivePathTimeout = 2606 nconf->dot11MeshHWMPactivePathTimeout; 2607 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2608 conf->dot11MeshHWMPpreqMinInterval = 2609 nconf->dot11MeshHWMPpreqMinInterval; 2610 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2611 conf->dot11MeshHWMPperrMinInterval = 2612 nconf->dot11MeshHWMPperrMinInterval; 2613 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2614 mask)) 2615 conf->dot11MeshHWMPnetDiameterTraversalTime = 2616 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2617 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2618 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2619 ieee80211_mesh_root_setup(ifmsh); 2620 } 2621 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2622 /* our current gate announcement implementation rides on root 2623 * announcements, so require this ifmsh to also be a root node 2624 * */ 2625 if (nconf->dot11MeshGateAnnouncementProtocol && 2626 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2627 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2628 ieee80211_mesh_root_setup(ifmsh); 2629 } 2630 conf->dot11MeshGateAnnouncementProtocol = 2631 nconf->dot11MeshGateAnnouncementProtocol; 2632 } 2633 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2634 conf->dot11MeshHWMPRannInterval = 2635 nconf->dot11MeshHWMPRannInterval; 2636 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2637 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2638 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2639 /* our RSSI threshold implementation is supported only for 2640 * devices that report signal in dBm. 2641 */ 2642 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2643 return -EOPNOTSUPP; 2644 conf->rssi_threshold = nconf->rssi_threshold; 2645 } 2646 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2647 conf->ht_opmode = nconf->ht_opmode; 2648 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2649 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2650 BSS_CHANGED_HT); 2651 } 2652 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2653 conf->dot11MeshHWMPactivePathToRootTimeout = 2654 nconf->dot11MeshHWMPactivePathToRootTimeout; 2655 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2656 conf->dot11MeshHWMProotInterval = 2657 nconf->dot11MeshHWMProotInterval; 2658 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2659 conf->dot11MeshHWMPconfirmationInterval = 2660 nconf->dot11MeshHWMPconfirmationInterval; 2661 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2662 conf->power_mode = nconf->power_mode; 2663 ieee80211_mps_local_status_update(sdata); 2664 } 2665 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2666 conf->dot11MeshAwakeWindowDuration = 2667 nconf->dot11MeshAwakeWindowDuration; 2668 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2669 conf->plink_timeout = nconf->plink_timeout; 2670 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2671 conf->dot11MeshConnectedToMeshGate = 2672 nconf->dot11MeshConnectedToMeshGate; 2673 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2674 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2675 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2676 conf->dot11MeshConnectedToAuthServer = 2677 nconf->dot11MeshConnectedToAuthServer; 2678 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2679 return 0; 2680 } 2681 2682 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2683 const struct mesh_config *conf, 2684 const struct mesh_setup *setup) 2685 { 2686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2687 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2688 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2689 int err; 2690 2691 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2692 2693 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2694 err = copy_mesh_setup(ifmsh, setup); 2695 if (err) 2696 return err; 2697 2698 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2699 2700 /* can mesh use other SMPS modes? */ 2701 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2702 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2703 2704 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2705 IEEE80211_CHANCTX_SHARED); 2706 if (err) 2707 return err; 2708 2709 return ieee80211_start_mesh(sdata); 2710 } 2711 2712 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2713 { 2714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2715 2716 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2717 2718 ieee80211_stop_mesh(sdata); 2719 ieee80211_link_release_channel(&sdata->deflink); 2720 kfree(sdata->u.mesh.ie); 2721 2722 return 0; 2723 } 2724 #endif 2725 2726 static int ieee80211_change_bss(struct wiphy *wiphy, 2727 struct net_device *dev, 2728 struct bss_parameters *params) 2729 { 2730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2731 struct ieee80211_link_data *link; 2732 struct ieee80211_supported_band *sband; 2733 u64 changed = 0; 2734 2735 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2736 if (IS_ERR(link)) 2737 return PTR_ERR(link); 2738 2739 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2740 return -ENOENT; 2741 2742 sband = ieee80211_get_link_sband(link); 2743 if (!sband) 2744 return -EINVAL; 2745 2746 if (params->basic_rates) { 2747 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2748 wiphy->bands[sband->band], 2749 params->basic_rates, 2750 params->basic_rates_len, 2751 &link->conf->basic_rates)) 2752 return -EINVAL; 2753 changed |= BSS_CHANGED_BASIC_RATES; 2754 ieee80211_check_rate_mask(link); 2755 } 2756 2757 if (params->use_cts_prot >= 0) { 2758 link->conf->use_cts_prot = params->use_cts_prot; 2759 changed |= BSS_CHANGED_ERP_CTS_PROT; 2760 } 2761 if (params->use_short_preamble >= 0) { 2762 link->conf->use_short_preamble = params->use_short_preamble; 2763 changed |= BSS_CHANGED_ERP_PREAMBLE; 2764 } 2765 2766 if (!link->conf->use_short_slot && 2767 (sband->band == NL80211_BAND_5GHZ || 2768 sband->band == NL80211_BAND_6GHZ)) { 2769 link->conf->use_short_slot = true; 2770 changed |= BSS_CHANGED_ERP_SLOT; 2771 } 2772 2773 if (params->use_short_slot_time >= 0) { 2774 link->conf->use_short_slot = params->use_short_slot_time; 2775 changed |= BSS_CHANGED_ERP_SLOT; 2776 } 2777 2778 if (params->ap_isolate >= 0) { 2779 if (params->ap_isolate) 2780 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2781 else 2782 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2783 ieee80211_check_fast_rx_iface(sdata); 2784 } 2785 2786 if (params->ht_opmode >= 0) { 2787 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2788 changed |= BSS_CHANGED_HT; 2789 } 2790 2791 if (params->p2p_ctwindow >= 0) { 2792 link->conf->p2p_noa_attr.oppps_ctwindow &= 2793 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2794 link->conf->p2p_noa_attr.oppps_ctwindow |= 2795 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2796 changed |= BSS_CHANGED_P2P_PS; 2797 } 2798 2799 if (params->p2p_opp_ps > 0) { 2800 link->conf->p2p_noa_attr.oppps_ctwindow |= 2801 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2802 changed |= BSS_CHANGED_P2P_PS; 2803 } else if (params->p2p_opp_ps == 0) { 2804 link->conf->p2p_noa_attr.oppps_ctwindow &= 2805 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2806 changed |= BSS_CHANGED_P2P_PS; 2807 } 2808 2809 ieee80211_link_info_change_notify(sdata, link, changed); 2810 2811 return 0; 2812 } 2813 2814 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2815 struct net_device *dev, 2816 struct ieee80211_txq_params *params) 2817 { 2818 struct ieee80211_local *local = wiphy_priv(wiphy); 2819 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2820 struct ieee80211_link_data *link = 2821 ieee80211_link_or_deflink(sdata, params->link_id, true); 2822 struct ieee80211_tx_queue_params p; 2823 2824 if (!local->ops->conf_tx) 2825 return -EOPNOTSUPP; 2826 2827 if (local->hw.queues < IEEE80211_NUM_ACS) 2828 return -EOPNOTSUPP; 2829 2830 if (IS_ERR(link)) 2831 return PTR_ERR(link); 2832 2833 memset(&p, 0, sizeof(p)); 2834 p.aifs = params->aifs; 2835 p.cw_max = params->cwmax; 2836 p.cw_min = params->cwmin; 2837 p.txop = params->txop; 2838 2839 /* 2840 * Setting tx queue params disables u-apsd because it's only 2841 * called in master mode. 2842 */ 2843 p.uapsd = false; 2844 2845 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2846 2847 link->tx_conf[params->ac] = p; 2848 if (drv_conf_tx(local, link, params->ac, &p)) { 2849 wiphy_debug(local->hw.wiphy, 2850 "failed to set TX queue parameters for AC %d\n", 2851 params->ac); 2852 return -EINVAL; 2853 } 2854 2855 ieee80211_link_info_change_notify(sdata, link, 2856 BSS_CHANGED_QOS); 2857 2858 return 0; 2859 } 2860 2861 #ifdef CONFIG_PM 2862 static int ieee80211_suspend(struct wiphy *wiphy, 2863 struct cfg80211_wowlan *wowlan) 2864 { 2865 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2866 } 2867 2868 static int ieee80211_resume(struct wiphy *wiphy) 2869 { 2870 return __ieee80211_resume(wiphy_priv(wiphy)); 2871 } 2872 #else 2873 #define ieee80211_suspend NULL 2874 #define ieee80211_resume NULL 2875 #endif 2876 2877 static int ieee80211_scan(struct wiphy *wiphy, 2878 struct cfg80211_scan_request *req) 2879 { 2880 struct ieee80211_sub_if_data *sdata; 2881 2882 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2883 2884 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2885 case NL80211_IFTYPE_STATION: 2886 case NL80211_IFTYPE_ADHOC: 2887 case NL80211_IFTYPE_MESH_POINT: 2888 case NL80211_IFTYPE_P2P_CLIENT: 2889 case NL80211_IFTYPE_P2P_DEVICE: 2890 break; 2891 case NL80211_IFTYPE_P2P_GO: 2892 if (sdata->local->ops->hw_scan) 2893 break; 2894 /* 2895 * FIXME: implement NoA while scanning in software, 2896 * for now fall through to allow scanning only when 2897 * beaconing hasn't been configured yet 2898 */ 2899 fallthrough; 2900 case NL80211_IFTYPE_AP: 2901 /* 2902 * If the scan has been forced (and the driver supports 2903 * forcing), don't care about being beaconing already. 2904 * This will create problems to the attached stations (e.g. all 2905 * the frames sent while scanning on other channel will be 2906 * lost) 2907 */ 2908 if (sdata->deflink.u.ap.beacon && 2909 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2910 !(req->flags & NL80211_SCAN_FLAG_AP))) 2911 return -EOPNOTSUPP; 2912 break; 2913 case NL80211_IFTYPE_NAN: 2914 default: 2915 return -EOPNOTSUPP; 2916 } 2917 2918 return ieee80211_request_scan(sdata, req); 2919 } 2920 2921 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2922 { 2923 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2924 } 2925 2926 static int 2927 ieee80211_sched_scan_start(struct wiphy *wiphy, 2928 struct net_device *dev, 2929 struct cfg80211_sched_scan_request *req) 2930 { 2931 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2932 2933 if (!sdata->local->ops->sched_scan_start) 2934 return -EOPNOTSUPP; 2935 2936 return ieee80211_request_sched_scan_start(sdata, req); 2937 } 2938 2939 static int 2940 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2941 u64 reqid) 2942 { 2943 struct ieee80211_local *local = wiphy_priv(wiphy); 2944 2945 if (!local->ops->sched_scan_stop) 2946 return -EOPNOTSUPP; 2947 2948 return ieee80211_request_sched_scan_stop(local); 2949 } 2950 2951 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2952 struct cfg80211_auth_request *req) 2953 { 2954 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2955 } 2956 2957 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2958 struct cfg80211_assoc_request *req) 2959 { 2960 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2961 } 2962 2963 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2964 struct cfg80211_deauth_request *req) 2965 { 2966 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2967 } 2968 2969 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2970 struct cfg80211_disassoc_request *req) 2971 { 2972 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2973 } 2974 2975 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2976 struct cfg80211_ibss_params *params) 2977 { 2978 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2979 } 2980 2981 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2982 { 2983 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2984 } 2985 2986 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2987 struct ocb_setup *setup) 2988 { 2989 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2990 } 2991 2992 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2993 { 2994 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2995 } 2996 2997 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2998 int rate[NUM_NL80211_BANDS]) 2999 { 3000 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3001 3002 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3003 sizeof(int) * NUM_NL80211_BANDS); 3004 3005 if (ieee80211_sdata_running(sdata)) 3006 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3007 BSS_CHANGED_MCAST_RATE); 3008 3009 return 0; 3010 } 3011 3012 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 3013 { 3014 struct ieee80211_local *local = wiphy_priv(wiphy); 3015 int err; 3016 3017 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3018 ieee80211_check_fast_xmit_all(local); 3019 3020 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 3021 3022 if (err) { 3023 ieee80211_check_fast_xmit_all(local); 3024 return err; 3025 } 3026 } 3027 3028 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3029 (changed & WIPHY_PARAM_DYN_ACK)) { 3030 s16 coverage_class; 3031 3032 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3033 wiphy->coverage_class : -1; 3034 err = drv_set_coverage_class(local, coverage_class); 3035 3036 if (err) 3037 return err; 3038 } 3039 3040 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3041 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 3042 3043 if (err) 3044 return err; 3045 } 3046 3047 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3048 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3049 return -EINVAL; 3050 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3051 } 3052 if (changed & WIPHY_PARAM_RETRY_LONG) { 3053 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3054 return -EINVAL; 3055 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3056 } 3057 if (changed & 3058 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3059 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3060 3061 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3062 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3063 WIPHY_PARAM_TXQ_QUANTUM)) 3064 ieee80211_txq_set_params(local); 3065 3066 return 0; 3067 } 3068 3069 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3070 struct wireless_dev *wdev, 3071 enum nl80211_tx_power_setting type, int mbm) 3072 { 3073 struct ieee80211_local *local = wiphy_priv(wiphy); 3074 struct ieee80211_sub_if_data *sdata; 3075 enum nl80211_tx_power_setting txp_type = type; 3076 bool update_txp_type = false; 3077 bool has_monitor = false; 3078 int user_power_level; 3079 int old_power = local->user_power_level; 3080 3081 lockdep_assert_wiphy(local->hw.wiphy); 3082 3083 switch (type) { 3084 case NL80211_TX_POWER_AUTOMATIC: 3085 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3086 txp_type = NL80211_TX_POWER_LIMITED; 3087 break; 3088 case NL80211_TX_POWER_LIMITED: 3089 case NL80211_TX_POWER_FIXED: 3090 if (mbm < 0 || (mbm % 100)) 3091 return -EOPNOTSUPP; 3092 user_power_level = MBM_TO_DBM(mbm); 3093 break; 3094 default: 3095 return -EINVAL; 3096 } 3097 3098 if (wdev) { 3099 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3100 3101 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3102 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3103 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3104 return -EOPNOTSUPP; 3105 3106 sdata = wiphy_dereference(local->hw.wiphy, 3107 local->monitor_sdata); 3108 if (!sdata) 3109 return -EOPNOTSUPP; 3110 } 3111 3112 for (int link_id = 0; 3113 link_id < ARRAY_SIZE(sdata->link); 3114 link_id++) { 3115 struct ieee80211_link_data *link = 3116 wiphy_dereference(wiphy, sdata->link[link_id]); 3117 3118 if (!link) 3119 continue; 3120 3121 link->user_power_level = user_power_level; 3122 3123 if (txp_type != link->conf->txpower_type) { 3124 update_txp_type = true; 3125 link->conf->txpower_type = txp_type; 3126 } 3127 3128 ieee80211_recalc_txpower(link, update_txp_type); 3129 } 3130 return 0; 3131 } 3132 3133 local->user_power_level = user_power_level; 3134 3135 list_for_each_entry(sdata, &local->interfaces, list) { 3136 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3137 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3138 has_monitor = true; 3139 continue; 3140 } 3141 3142 for (int link_id = 0; 3143 link_id < ARRAY_SIZE(sdata->link); 3144 link_id++) { 3145 struct ieee80211_link_data *link = 3146 wiphy_dereference(wiphy, sdata->link[link_id]); 3147 3148 if (!link) 3149 continue; 3150 3151 link->user_power_level = local->user_power_level; 3152 if (txp_type != link->conf->txpower_type) 3153 update_txp_type = true; 3154 link->conf->txpower_type = txp_type; 3155 } 3156 } 3157 list_for_each_entry(sdata, &local->interfaces, list) { 3158 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3159 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3160 continue; 3161 3162 for (int link_id = 0; 3163 link_id < ARRAY_SIZE(sdata->link); 3164 link_id++) { 3165 struct ieee80211_link_data *link = 3166 wiphy_dereference(wiphy, sdata->link[link_id]); 3167 3168 if (!link) 3169 continue; 3170 3171 ieee80211_recalc_txpower(link, update_txp_type); 3172 } 3173 } 3174 3175 if (has_monitor) { 3176 sdata = wiphy_dereference(local->hw.wiphy, 3177 local->monitor_sdata); 3178 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3179 sdata->deflink.user_power_level = local->user_power_level; 3180 if (txp_type != sdata->vif.bss_conf.txpower_type) 3181 update_txp_type = true; 3182 sdata->vif.bss_conf.txpower_type = txp_type; 3183 3184 ieee80211_recalc_txpower(&sdata->deflink, 3185 update_txp_type); 3186 } 3187 } 3188 3189 if (local->emulate_chanctx && 3190 (old_power != local->user_power_level)) 3191 ieee80211_hw_conf_chan(local); 3192 3193 return 0; 3194 } 3195 3196 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3197 struct wireless_dev *wdev, 3198 unsigned int link_id, 3199 int *dbm) 3200 { 3201 struct ieee80211_local *local = wiphy_priv(wiphy); 3202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3203 struct ieee80211_link_data *link_data; 3204 3205 if (local->ops->get_txpower && 3206 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3207 return drv_get_txpower(local, sdata, link_id, dbm); 3208 3209 if (local->emulate_chanctx) { 3210 *dbm = local->hw.conf.power_level; 3211 } else { 3212 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3213 3214 if (link_data) 3215 *dbm = link_data->conf->txpower; 3216 else 3217 return -ENOLINK; 3218 } 3219 3220 /* INT_MIN indicates no power level was set yet */ 3221 if (*dbm == INT_MIN) 3222 return -EINVAL; 3223 3224 return 0; 3225 } 3226 3227 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3228 { 3229 struct ieee80211_local *local = wiphy_priv(wiphy); 3230 3231 drv_rfkill_poll(local); 3232 } 3233 3234 #ifdef CONFIG_NL80211_TESTMODE 3235 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3236 struct wireless_dev *wdev, 3237 void *data, int len) 3238 { 3239 struct ieee80211_local *local = wiphy_priv(wiphy); 3240 struct ieee80211_vif *vif = NULL; 3241 3242 if (!local->ops->testmode_cmd) 3243 return -EOPNOTSUPP; 3244 3245 if (wdev) { 3246 struct ieee80211_sub_if_data *sdata; 3247 3248 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3249 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3250 vif = &sdata->vif; 3251 } 3252 3253 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3254 } 3255 3256 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3257 struct sk_buff *skb, 3258 struct netlink_callback *cb, 3259 void *data, int len) 3260 { 3261 struct ieee80211_local *local = wiphy_priv(wiphy); 3262 3263 if (!local->ops->testmode_dump) 3264 return -EOPNOTSUPP; 3265 3266 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3267 } 3268 #endif 3269 3270 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3271 struct ieee80211_link_data *link, 3272 enum ieee80211_smps_mode smps_mode) 3273 { 3274 const u8 *ap; 3275 enum ieee80211_smps_mode old_req; 3276 int err; 3277 struct sta_info *sta; 3278 bool tdls_peer_found = false; 3279 3280 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3281 3282 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3283 return -EINVAL; 3284 3285 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3286 return 0; 3287 3288 old_req = link->u.mgd.req_smps; 3289 link->u.mgd.req_smps = smps_mode; 3290 3291 /* The driver indicated that EML is enabled for the interface, which 3292 * implies that SMPS flows towards the AP should be stopped. 3293 */ 3294 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3295 return 0; 3296 3297 if (old_req == smps_mode && 3298 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3299 return 0; 3300 3301 /* 3302 * If not associated, or current association is not an HT 3303 * association, there's no need to do anything, just store 3304 * the new value until we associate. 3305 */ 3306 if (!sdata->u.mgd.associated || 3307 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3308 return 0; 3309 3310 ap = sdata->vif.cfg.ap_addr; 3311 3312 rcu_read_lock(); 3313 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3314 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3315 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3316 continue; 3317 3318 tdls_peer_found = true; 3319 break; 3320 } 3321 rcu_read_unlock(); 3322 3323 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3324 if (tdls_peer_found || !sdata->u.mgd.powersave) 3325 smps_mode = IEEE80211_SMPS_OFF; 3326 else 3327 smps_mode = IEEE80211_SMPS_DYNAMIC; 3328 } 3329 3330 /* send SM PS frame to AP */ 3331 err = ieee80211_send_smps_action(sdata, smps_mode, 3332 ap, ap, 3333 ieee80211_vif_is_mld(&sdata->vif) ? 3334 link->link_id : -1); 3335 if (err) 3336 link->u.mgd.req_smps = old_req; 3337 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3338 ieee80211_teardown_tdls_peers(link); 3339 3340 return err; 3341 } 3342 3343 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3344 bool enabled, int timeout) 3345 { 3346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3347 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3348 unsigned int link_id; 3349 3350 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3351 return -EOPNOTSUPP; 3352 3353 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3354 return -EOPNOTSUPP; 3355 3356 if (enabled == sdata->u.mgd.powersave && 3357 timeout == local->dynamic_ps_forced_timeout) 3358 return 0; 3359 3360 sdata->u.mgd.powersave = enabled; 3361 local->dynamic_ps_forced_timeout = timeout; 3362 3363 /* no change, but if automatic follow powersave */ 3364 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3365 struct ieee80211_link_data *link; 3366 3367 link = sdata_dereference(sdata->link[link_id], sdata); 3368 3369 if (!link) 3370 continue; 3371 __ieee80211_request_smps_mgd(sdata, link, 3372 link->u.mgd.req_smps); 3373 } 3374 3375 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3376 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3377 3378 ieee80211_recalc_ps(local); 3379 ieee80211_recalc_ps_vif(sdata); 3380 ieee80211_check_fast_rx_iface(sdata); 3381 3382 return 0; 3383 } 3384 3385 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3386 struct ieee80211_link_data *link, 3387 s32 rssi_thold, u32 rssi_hyst, 3388 s32 rssi_low, s32 rssi_high) 3389 { 3390 struct ieee80211_bss_conf *conf; 3391 3392 if (!link || !link->conf) 3393 return; 3394 3395 conf = link->conf; 3396 3397 if (rssi_thold && rssi_hyst && 3398 rssi_thold == conf->cqm_rssi_thold && 3399 rssi_hyst == conf->cqm_rssi_hyst) 3400 return; 3401 3402 conf->cqm_rssi_thold = rssi_thold; 3403 conf->cqm_rssi_hyst = rssi_hyst; 3404 conf->cqm_rssi_low = rssi_low; 3405 conf->cqm_rssi_high = rssi_high; 3406 link->u.mgd.last_cqm_event_signal = 0; 3407 3408 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3409 return; 3410 3411 if (sdata->u.mgd.associated && 3412 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3413 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3414 } 3415 3416 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3417 struct net_device *dev, 3418 s32 rssi_thold, u32 rssi_hyst) 3419 { 3420 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3421 struct ieee80211_vif *vif = &sdata->vif; 3422 int link_id; 3423 3424 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3425 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3426 return -EOPNOTSUPP; 3427 3428 /* For MLD, handle CQM change on all the active links */ 3429 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3430 struct ieee80211_link_data *link = 3431 sdata_dereference(sdata->link[link_id], sdata); 3432 3433 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3434 0, 0); 3435 } 3436 3437 return 0; 3438 } 3439 3440 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3441 struct net_device *dev, 3442 s32 rssi_low, s32 rssi_high) 3443 { 3444 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3445 struct ieee80211_vif *vif = &sdata->vif; 3446 int link_id; 3447 3448 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3449 return -EOPNOTSUPP; 3450 3451 /* For MLD, handle CQM change on all the active links */ 3452 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3453 struct ieee80211_link_data *link = 3454 sdata_dereference(sdata->link[link_id], sdata); 3455 3456 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3457 rssi_low, rssi_high); 3458 } 3459 3460 return 0; 3461 } 3462 3463 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3464 struct net_device *dev, 3465 unsigned int link_id, 3466 const u8 *addr, 3467 const struct cfg80211_bitrate_mask *mask) 3468 { 3469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3470 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3471 int i, ret; 3472 3473 if (!ieee80211_sdata_running(sdata)) 3474 return -ENETDOWN; 3475 3476 /* 3477 * If active validate the setting and reject it if it doesn't leave 3478 * at least one basic rate usable, since we really have to be able 3479 * to send something, and if we're an AP we have to be able to do 3480 * so at a basic rate so that all clients can receive it. 3481 */ 3482 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3483 sdata->vif.bss_conf.chanreq.oper.chan) { 3484 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3485 enum nl80211_band band; 3486 3487 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3488 3489 if (!(mask->control[band].legacy & basic_rates)) 3490 return -EINVAL; 3491 } 3492 3493 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3494 ret = drv_set_bitrate_mask(local, sdata, mask); 3495 if (ret) 3496 return ret; 3497 } 3498 3499 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3500 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3501 int j; 3502 3503 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3504 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3505 sizeof(mask->control[i].ht_mcs)); 3506 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3507 mask->control[i].vht_mcs, 3508 sizeof(mask->control[i].vht_mcs)); 3509 3510 sdata->rc_has_mcs_mask[i] = false; 3511 sdata->rc_has_vht_mcs_mask[i] = false; 3512 if (!sband) 3513 continue; 3514 3515 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3516 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3517 sdata->rc_has_mcs_mask[i] = true; 3518 break; 3519 } 3520 } 3521 3522 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3523 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3524 sdata->rc_has_vht_mcs_mask[i] = true; 3525 break; 3526 } 3527 } 3528 } 3529 3530 return 0; 3531 } 3532 3533 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3534 struct net_device *dev, 3535 struct cfg80211_chan_def *chandef, 3536 u32 cac_time_ms, int link_id) 3537 { 3538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3539 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3540 struct ieee80211_local *local = sdata->local; 3541 struct ieee80211_link_data *link_data; 3542 int err; 3543 3544 lockdep_assert_wiphy(local->hw.wiphy); 3545 3546 if (!list_empty(&local->roc_list) || local->scanning) 3547 return -EBUSY; 3548 3549 link_data = sdata_dereference(sdata->link[link_id], sdata); 3550 if (!link_data) 3551 return -ENOLINK; 3552 3553 /* whatever, but channel contexts should not complain about that one */ 3554 link_data->smps_mode = IEEE80211_SMPS_OFF; 3555 link_data->needed_rx_chains = local->rx_chains; 3556 3557 err = ieee80211_link_use_channel(link_data, &chanreq, 3558 IEEE80211_CHANCTX_SHARED); 3559 if (err) 3560 return err; 3561 3562 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3563 msecs_to_jiffies(cac_time_ms)); 3564 3565 return 0; 3566 } 3567 3568 static void ieee80211_end_cac(struct wiphy *wiphy, 3569 struct net_device *dev, unsigned int link_id) 3570 { 3571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3572 struct ieee80211_local *local = sdata->local; 3573 struct ieee80211_link_data *link_data; 3574 3575 lockdep_assert_wiphy(local->hw.wiphy); 3576 3577 list_for_each_entry(sdata, &local->interfaces, list) { 3578 link_data = sdata_dereference(sdata->link[link_id], sdata); 3579 if (!link_data) 3580 continue; 3581 3582 wiphy_delayed_work_cancel(wiphy, 3583 &link_data->dfs_cac_timer_work); 3584 3585 if (sdata->wdev.links[link_id].cac_started) { 3586 ieee80211_link_release_channel(link_data); 3587 sdata->wdev.links[link_id].cac_started = false; 3588 } 3589 } 3590 } 3591 3592 static struct cfg80211_beacon_data * 3593 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3594 { 3595 struct cfg80211_beacon_data *new_beacon; 3596 u8 *pos; 3597 int len; 3598 3599 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3600 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3601 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3602 3603 if (beacon->mbssid_ies) 3604 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3605 beacon->rnr_ies, 3606 beacon->mbssid_ies->cnt); 3607 3608 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3609 if (!new_beacon) 3610 return NULL; 3611 3612 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3613 new_beacon->mbssid_ies = 3614 kzalloc(struct_size(new_beacon->mbssid_ies, 3615 elem, beacon->mbssid_ies->cnt), 3616 GFP_KERNEL); 3617 if (!new_beacon->mbssid_ies) { 3618 kfree(new_beacon); 3619 return NULL; 3620 } 3621 3622 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3623 new_beacon->rnr_ies = 3624 kzalloc(struct_size(new_beacon->rnr_ies, 3625 elem, beacon->rnr_ies->cnt), 3626 GFP_KERNEL); 3627 if (!new_beacon->rnr_ies) { 3628 kfree(new_beacon->mbssid_ies); 3629 kfree(new_beacon); 3630 return NULL; 3631 } 3632 } 3633 } 3634 3635 pos = (u8 *)(new_beacon + 1); 3636 if (beacon->head_len) { 3637 new_beacon->head_len = beacon->head_len; 3638 new_beacon->head = pos; 3639 memcpy(pos, beacon->head, beacon->head_len); 3640 pos += beacon->head_len; 3641 } 3642 if (beacon->tail_len) { 3643 new_beacon->tail_len = beacon->tail_len; 3644 new_beacon->tail = pos; 3645 memcpy(pos, beacon->tail, beacon->tail_len); 3646 pos += beacon->tail_len; 3647 } 3648 if (beacon->beacon_ies_len) { 3649 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3650 new_beacon->beacon_ies = pos; 3651 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3652 pos += beacon->beacon_ies_len; 3653 } 3654 if (beacon->proberesp_ies_len) { 3655 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3656 new_beacon->proberesp_ies = pos; 3657 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3658 pos += beacon->proberesp_ies_len; 3659 } 3660 if (beacon->assocresp_ies_len) { 3661 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3662 new_beacon->assocresp_ies = pos; 3663 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3664 pos += beacon->assocresp_ies_len; 3665 } 3666 if (beacon->probe_resp_len) { 3667 new_beacon->probe_resp_len = beacon->probe_resp_len; 3668 new_beacon->probe_resp = pos; 3669 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3670 pos += beacon->probe_resp_len; 3671 } 3672 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3673 pos += ieee80211_copy_mbssid_beacon(pos, 3674 new_beacon->mbssid_ies, 3675 beacon->mbssid_ies); 3676 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3677 pos += ieee80211_copy_rnr_beacon(pos, 3678 new_beacon->rnr_ies, 3679 beacon->rnr_ies); 3680 } 3681 3682 /* might copy -1, meaning no changes requested */ 3683 new_beacon->ftm_responder = beacon->ftm_responder; 3684 if (beacon->lci) { 3685 new_beacon->lci_len = beacon->lci_len; 3686 new_beacon->lci = pos; 3687 memcpy(pos, beacon->lci, beacon->lci_len); 3688 pos += beacon->lci_len; 3689 } 3690 if (beacon->civicloc) { 3691 new_beacon->civicloc_len = beacon->civicloc_len; 3692 new_beacon->civicloc = pos; 3693 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3694 pos += beacon->civicloc_len; 3695 } 3696 3697 return new_beacon; 3698 } 3699 3700 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3701 { 3702 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3703 struct ieee80211_local *local = sdata->local; 3704 struct ieee80211_link_data *link_data; 3705 3706 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3707 return; 3708 3709 rcu_read_lock(); 3710 3711 link_data = rcu_dereference(sdata->link[link_id]); 3712 if (WARN_ON(!link_data)) { 3713 rcu_read_unlock(); 3714 return; 3715 } 3716 3717 /* TODO: MBSSID with MLO changes */ 3718 if (vif->mbssid_tx_vif == vif) { 3719 /* Trigger ieee80211_csa_finish() on the non-transmitting 3720 * interfaces when channel switch is received on 3721 * transmitting interface 3722 */ 3723 struct ieee80211_sub_if_data *iter; 3724 3725 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3726 if (!ieee80211_sdata_running(iter)) 3727 continue; 3728 3729 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3730 continue; 3731 3732 wiphy_work_queue(iter->local->hw.wiphy, 3733 &iter->deflink.csa.finalize_work); 3734 } 3735 } 3736 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 3737 3738 rcu_read_unlock(); 3739 } 3740 EXPORT_SYMBOL(ieee80211_csa_finish); 3741 3742 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 3743 { 3744 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3745 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3746 struct ieee80211_local *local = sdata->local; 3747 3748 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3749 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3750 } 3751 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3752 3753 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3754 u64 *changed) 3755 { 3756 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3757 int err; 3758 3759 switch (sdata->vif.type) { 3760 case NL80211_IFTYPE_AP: 3761 if (!link_data->u.ap.next_beacon) 3762 return -EINVAL; 3763 3764 err = ieee80211_assign_beacon(sdata, link_data, 3765 link_data->u.ap.next_beacon, 3766 NULL, NULL, changed); 3767 ieee80211_free_next_beacon(link_data); 3768 3769 if (err < 0) 3770 return err; 3771 break; 3772 case NL80211_IFTYPE_ADHOC: 3773 err = ieee80211_ibss_finish_csa(sdata, changed); 3774 if (err < 0) 3775 return err; 3776 break; 3777 #ifdef CONFIG_MAC80211_MESH 3778 case NL80211_IFTYPE_MESH_POINT: 3779 err = ieee80211_mesh_finish_csa(sdata, changed); 3780 if (err < 0) 3781 return err; 3782 break; 3783 #endif 3784 default: 3785 WARN_ON(1); 3786 return -EINVAL; 3787 } 3788 3789 return 0; 3790 } 3791 3792 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3793 { 3794 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3795 struct ieee80211_local *local = sdata->local; 3796 struct ieee80211_bss_conf *link_conf = link_data->conf; 3797 u64 changed = 0; 3798 int err; 3799 3800 lockdep_assert_wiphy(local->hw.wiphy); 3801 3802 /* 3803 * using reservation isn't immediate as it may be deferred until later 3804 * with multi-vif. once reservation is complete it will re-schedule the 3805 * work with no reserved_chanctx so verify chandef to check if it 3806 * completed successfully 3807 */ 3808 3809 if (link_data->reserved_chanctx) { 3810 /* 3811 * with multi-vif csa driver may call ieee80211_csa_finish() 3812 * many times while waiting for other interfaces to use their 3813 * reservations 3814 */ 3815 if (link_data->reserved_ready) 3816 return 0; 3817 3818 return ieee80211_link_use_reserved_context(link_data); 3819 } 3820 3821 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3822 &link_data->csa.chanreq.oper)) 3823 return -EINVAL; 3824 3825 link_conf->csa_active = false; 3826 3827 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3828 if (err) 3829 return err; 3830 3831 ieee80211_link_info_change_notify(sdata, link_data, changed); 3832 3833 ieee80211_vif_unblock_queues_csa(sdata); 3834 3835 err = drv_post_channel_switch(link_data); 3836 if (err) 3837 return err; 3838 3839 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 3840 link_data->link_id); 3841 3842 return 0; 3843 } 3844 3845 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3846 { 3847 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3848 3849 if (__ieee80211_csa_finalize(link_data)) { 3850 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3851 link_data->link_id); 3852 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3853 GFP_KERNEL); 3854 } 3855 } 3856 3857 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3858 { 3859 struct ieee80211_link_data *link = 3860 container_of(work, struct ieee80211_link_data, csa.finalize_work); 3861 struct ieee80211_sub_if_data *sdata = link->sdata; 3862 struct ieee80211_local *local = sdata->local; 3863 3864 lockdep_assert_wiphy(local->hw.wiphy); 3865 3866 /* AP might have been stopped while waiting for the lock. */ 3867 if (!link->conf->csa_active) 3868 return; 3869 3870 if (!ieee80211_sdata_running(sdata)) 3871 return; 3872 3873 ieee80211_csa_finalize(link); 3874 } 3875 3876 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3877 struct cfg80211_csa_settings *params, 3878 u64 *changed) 3879 { 3880 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3881 struct ieee80211_csa_settings csa = {}; 3882 int err; 3883 3884 switch (sdata->vif.type) { 3885 case NL80211_IFTYPE_AP: 3886 link_data->u.ap.next_beacon = 3887 cfg80211_beacon_dup(¶ms->beacon_after); 3888 if (!link_data->u.ap.next_beacon) 3889 return -ENOMEM; 3890 3891 /* 3892 * With a count of 0, we don't have to wait for any 3893 * TBTT before switching, so complete the CSA 3894 * immediately. In theory, with a count == 1 we 3895 * should delay the switch until just before the next 3896 * TBTT, but that would complicate things so we switch 3897 * immediately too. If we would delay the switch 3898 * until the next TBTT, we would have to set the probe 3899 * response here. 3900 * 3901 * TODO: A channel switch with count <= 1 without 3902 * sending a CSA action frame is kind of useless, 3903 * because the clients won't know we're changing 3904 * channels. The action frame must be implemented 3905 * either here or in the userspace. 3906 */ 3907 if (params->count <= 1) 3908 break; 3909 3910 if ((params->n_counter_offsets_beacon > 3911 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3912 (params->n_counter_offsets_presp > 3913 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3914 ieee80211_free_next_beacon(link_data); 3915 return -EINVAL; 3916 } 3917 3918 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3919 csa.counter_offsets_presp = params->counter_offsets_presp; 3920 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3921 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3922 csa.count = params->count; 3923 3924 err = ieee80211_assign_beacon(sdata, link_data, 3925 ¶ms->beacon_csa, &csa, 3926 NULL, changed); 3927 if (err < 0) { 3928 ieee80211_free_next_beacon(link_data); 3929 return err; 3930 } 3931 3932 break; 3933 case NL80211_IFTYPE_ADHOC: 3934 if (!sdata->vif.cfg.ibss_joined) 3935 return -EINVAL; 3936 3937 if (params->chandef.width != sdata->u.ibss.chandef.width) 3938 return -EINVAL; 3939 3940 switch (params->chandef.width) { 3941 case NL80211_CHAN_WIDTH_40: 3942 if (cfg80211_get_chandef_type(¶ms->chandef) != 3943 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3944 return -EINVAL; 3945 break; 3946 case NL80211_CHAN_WIDTH_5: 3947 case NL80211_CHAN_WIDTH_10: 3948 case NL80211_CHAN_WIDTH_20_NOHT: 3949 case NL80211_CHAN_WIDTH_20: 3950 break; 3951 default: 3952 return -EINVAL; 3953 } 3954 3955 /* changes into another band are not supported */ 3956 if (sdata->u.ibss.chandef.chan->band != 3957 params->chandef.chan->band) 3958 return -EINVAL; 3959 3960 /* see comments in the NL80211_IFTYPE_AP block */ 3961 if (params->count > 1) { 3962 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3963 if (err < 0) 3964 return err; 3965 } 3966 3967 ieee80211_send_action_csa(sdata, params); 3968 3969 break; 3970 #ifdef CONFIG_MAC80211_MESH 3971 case NL80211_IFTYPE_MESH_POINT: { 3972 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3973 3974 /* changes into another band are not supported */ 3975 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3976 params->chandef.chan->band) 3977 return -EINVAL; 3978 3979 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3980 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3981 if (!ifmsh->pre_value) 3982 ifmsh->pre_value = 1; 3983 else 3984 ifmsh->pre_value++; 3985 } 3986 3987 /* see comments in the NL80211_IFTYPE_AP block */ 3988 if (params->count > 1) { 3989 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3990 if (err < 0) { 3991 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3992 return err; 3993 } 3994 } 3995 3996 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3997 ieee80211_send_action_csa(sdata, params); 3998 3999 break; 4000 } 4001 #endif 4002 default: 4003 return -EOPNOTSUPP; 4004 } 4005 4006 return 0; 4007 } 4008 4009 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4010 { 4011 link->conf->color_change_active = false; 4012 4013 ieee80211_free_next_beacon(link); 4014 4015 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4016 } 4017 4018 static int 4019 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4020 struct cfg80211_csa_settings *params) 4021 { 4022 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4023 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4024 struct ieee80211_local *local = sdata->local; 4025 struct ieee80211_channel_switch ch_switch = { 4026 .link_id = params->link_id, 4027 }; 4028 struct ieee80211_chanctx_conf *conf; 4029 struct ieee80211_chanctx *chanctx; 4030 struct ieee80211_bss_conf *link_conf; 4031 struct ieee80211_link_data *link_data; 4032 u64 changed = 0; 4033 u8 link_id = params->link_id; 4034 int err; 4035 4036 lockdep_assert_wiphy(local->hw.wiphy); 4037 4038 if (!list_empty(&local->roc_list) || local->scanning) 4039 return -EBUSY; 4040 4041 if (sdata->wdev.links[link_id].cac_started) 4042 return -EBUSY; 4043 4044 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4045 return -EINVAL; 4046 4047 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4048 if (!link_data) 4049 return -ENOLINK; 4050 4051 link_conf = link_data->conf; 4052 4053 if (chanreq.oper.punctured && !link_conf->eht_support) 4054 return -EINVAL; 4055 4056 /* don't allow another channel switch if one is already active. */ 4057 if (link_conf->csa_active) 4058 return -EBUSY; 4059 4060 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4061 if (!conf) { 4062 err = -EBUSY; 4063 goto out; 4064 } 4065 4066 if (params->chandef.chan->freq_offset) { 4067 /* this may work, but is untested */ 4068 err = -EOPNOTSUPP; 4069 goto out; 4070 } 4071 4072 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4073 4074 ch_switch.timestamp = 0; 4075 ch_switch.device_timestamp = 0; 4076 ch_switch.block_tx = params->block_tx; 4077 ch_switch.chandef = chanreq.oper; 4078 ch_switch.count = params->count; 4079 4080 err = drv_pre_channel_switch(sdata, &ch_switch); 4081 if (err) 4082 goto out; 4083 4084 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4085 chanctx->mode, 4086 params->radar_required); 4087 if (err) 4088 goto out; 4089 4090 /* if reservation is invalid then this will fail */ 4091 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4092 if (err) { 4093 ieee80211_link_unreserve_chanctx(link_data); 4094 goto out; 4095 } 4096 4097 /* if there is a color change in progress, abort it */ 4098 if (link_conf->color_change_active) 4099 ieee80211_color_change_abort(link_data); 4100 4101 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4102 if (err) { 4103 ieee80211_link_unreserve_chanctx(link_data); 4104 goto out; 4105 } 4106 4107 link_data->csa.chanreq = chanreq; 4108 link_conf->csa_active = true; 4109 4110 if (params->block_tx) 4111 ieee80211_vif_block_queues_csa(sdata); 4112 4113 cfg80211_ch_switch_started_notify(sdata->dev, 4114 &link_data->csa.chanreq.oper, link_id, 4115 params->count, params->block_tx); 4116 4117 if (changed) { 4118 ieee80211_link_info_change_notify(sdata, link_data, changed); 4119 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4120 } else { 4121 /* if the beacon didn't change, we can finalize immediately */ 4122 ieee80211_csa_finalize(link_data); 4123 } 4124 4125 out: 4126 return err; 4127 } 4128 4129 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4130 struct cfg80211_csa_settings *params) 4131 { 4132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4133 struct ieee80211_local *local = sdata->local; 4134 4135 lockdep_assert_wiphy(local->hw.wiphy); 4136 4137 return __ieee80211_channel_switch(wiphy, dev, params); 4138 } 4139 4140 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4141 { 4142 lockdep_assert_wiphy(local->hw.wiphy); 4143 4144 local->roc_cookie_counter++; 4145 4146 /* wow, you wrapped 64 bits ... more likely a bug */ 4147 if (WARN_ON(local->roc_cookie_counter == 0)) 4148 local->roc_cookie_counter++; 4149 4150 return local->roc_cookie_counter; 4151 } 4152 4153 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4154 u64 *cookie, gfp_t gfp) 4155 { 4156 unsigned long spin_flags; 4157 struct sk_buff *ack_skb; 4158 int id; 4159 4160 ack_skb = skb_copy(skb, gfp); 4161 if (!ack_skb) 4162 return -ENOMEM; 4163 4164 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4165 id = idr_alloc(&local->ack_status_frames, ack_skb, 4166 1, 0x2000, GFP_ATOMIC); 4167 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4168 4169 if (id < 0) { 4170 kfree_skb(ack_skb); 4171 return -ENOMEM; 4172 } 4173 4174 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4175 IEEE80211_SKB_CB(skb)->status_data = id; 4176 4177 *cookie = ieee80211_mgmt_tx_cookie(local); 4178 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4179 4180 return 0; 4181 } 4182 4183 static void 4184 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4185 struct wireless_dev *wdev, 4186 struct mgmt_frame_regs *upd) 4187 { 4188 struct ieee80211_local *local = wiphy_priv(wiphy); 4189 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4190 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4191 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4192 bool global_change, intf_change; 4193 4194 global_change = 4195 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4196 (local->rx_mcast_action_reg != 4197 !!(upd->global_mcast_stypes & action_mask)); 4198 local->probe_req_reg = upd->global_stypes & preq_mask; 4199 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4200 4201 intf_change = (sdata->vif.probe_req_reg != 4202 !!(upd->interface_stypes & preq_mask)) || 4203 (sdata->vif.rx_mcast_action_reg != 4204 !!(upd->interface_mcast_stypes & action_mask)); 4205 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4206 sdata->vif.rx_mcast_action_reg = 4207 upd->interface_mcast_stypes & action_mask; 4208 4209 if (!local->open_count) 4210 return; 4211 4212 if (intf_change && ieee80211_sdata_running(sdata)) 4213 drv_config_iface_filter(local, sdata, 4214 sdata->vif.probe_req_reg ? 4215 FIF_PROBE_REQ : 0, 4216 FIF_PROBE_REQ); 4217 4218 if (global_change) 4219 ieee80211_configure_filter(local); 4220 } 4221 4222 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4223 { 4224 struct ieee80211_local *local = wiphy_priv(wiphy); 4225 int ret; 4226 4227 if (local->started) 4228 return -EOPNOTSUPP; 4229 4230 ret = drv_set_antenna(local, tx_ant, rx_ant); 4231 if (ret) 4232 return ret; 4233 4234 local->rx_chains = hweight8(rx_ant); 4235 return 0; 4236 } 4237 4238 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4239 { 4240 struct ieee80211_local *local = wiphy_priv(wiphy); 4241 4242 return drv_get_antenna(local, tx_ant, rx_ant); 4243 } 4244 4245 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4246 struct net_device *dev, 4247 struct cfg80211_gtk_rekey_data *data) 4248 { 4249 struct ieee80211_local *local = wiphy_priv(wiphy); 4250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4251 4252 if (!local->ops->set_rekey_data) 4253 return -EOPNOTSUPP; 4254 4255 drv_set_rekey_data(local, sdata, data); 4256 4257 return 0; 4258 } 4259 4260 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4261 const u8 *peer, u64 *cookie) 4262 { 4263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4264 struct ieee80211_local *local = sdata->local; 4265 struct ieee80211_qos_hdr *nullfunc; 4266 struct sk_buff *skb; 4267 int size = sizeof(*nullfunc); 4268 __le16 fc; 4269 bool qos; 4270 struct ieee80211_tx_info *info; 4271 struct sta_info *sta; 4272 struct ieee80211_chanctx_conf *chanctx_conf; 4273 enum nl80211_band band; 4274 int ret; 4275 4276 /* the lock is needed to assign the cookie later */ 4277 lockdep_assert_wiphy(local->hw.wiphy); 4278 4279 rcu_read_lock(); 4280 sta = sta_info_get_bss(sdata, peer); 4281 if (!sta) { 4282 ret = -ENOLINK; 4283 goto unlock; 4284 } 4285 4286 qos = sta->sta.wme; 4287 4288 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4289 if (WARN_ON(!chanctx_conf)) { 4290 ret = -EINVAL; 4291 goto unlock; 4292 } 4293 band = chanctx_conf->def.chan->band; 4294 4295 if (qos) { 4296 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4297 IEEE80211_STYPE_QOS_NULLFUNC | 4298 IEEE80211_FCTL_FROMDS); 4299 } else { 4300 size -= 2; 4301 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4302 IEEE80211_STYPE_NULLFUNC | 4303 IEEE80211_FCTL_FROMDS); 4304 } 4305 4306 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4307 if (!skb) { 4308 ret = -ENOMEM; 4309 goto unlock; 4310 } 4311 4312 skb->dev = dev; 4313 4314 skb_reserve(skb, local->hw.extra_tx_headroom); 4315 4316 nullfunc = skb_put(skb, size); 4317 nullfunc->frame_control = fc; 4318 nullfunc->duration_id = 0; 4319 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4320 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4321 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4322 nullfunc->seq_ctrl = 0; 4323 4324 info = IEEE80211_SKB_CB(skb); 4325 4326 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4327 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4328 info->band = band; 4329 4330 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4331 skb->priority = 7; 4332 if (qos) 4333 nullfunc->qos_ctrl = cpu_to_le16(7); 4334 4335 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4336 if (ret) { 4337 kfree_skb(skb); 4338 goto unlock; 4339 } 4340 4341 local_bh_disable(); 4342 ieee80211_xmit(sdata, sta, skb); 4343 local_bh_enable(); 4344 4345 ret = 0; 4346 unlock: 4347 rcu_read_unlock(); 4348 4349 return ret; 4350 } 4351 4352 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4353 struct wireless_dev *wdev, 4354 unsigned int link_id, 4355 struct cfg80211_chan_def *chandef) 4356 { 4357 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4358 struct ieee80211_local *local = wiphy_priv(wiphy); 4359 struct ieee80211_chanctx_conf *chanctx_conf; 4360 struct ieee80211_link_data *link; 4361 int ret = -ENODATA; 4362 4363 rcu_read_lock(); 4364 link = rcu_dereference(sdata->link[link_id]); 4365 if (!link) { 4366 ret = -ENOLINK; 4367 goto out; 4368 } 4369 4370 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4371 if (chanctx_conf) { 4372 *chandef = link->conf->chanreq.oper; 4373 ret = 0; 4374 } else if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) && 4375 local->open_count > 0 && 4376 local->open_count == local->monitors && 4377 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4378 *chandef = local->monitor_chanreq.oper; 4379 ret = 0; 4380 } 4381 out: 4382 rcu_read_unlock(); 4383 4384 return ret; 4385 } 4386 4387 #ifdef CONFIG_PM 4388 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4389 { 4390 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4391 } 4392 #endif 4393 4394 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4395 struct net_device *dev, 4396 struct cfg80211_qos_map *qos_map) 4397 { 4398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4399 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4400 4401 if (qos_map) { 4402 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4403 if (!new_qos_map) 4404 return -ENOMEM; 4405 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4406 } else { 4407 /* A NULL qos_map was passed to disable QoS mapping */ 4408 new_qos_map = NULL; 4409 } 4410 4411 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4412 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4413 if (old_qos_map) 4414 kfree_rcu(old_qos_map, rcu_head); 4415 4416 return 0; 4417 } 4418 4419 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4420 struct net_device *dev, 4421 unsigned int link_id, 4422 struct cfg80211_chan_def *chandef) 4423 { 4424 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4425 struct ieee80211_link_data *link; 4426 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4427 int ret; 4428 u64 changed = 0; 4429 4430 link = sdata_dereference(sdata->link[link_id], sdata); 4431 4432 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4433 if (ret == 0) 4434 ieee80211_link_info_change_notify(sdata, link, changed); 4435 4436 return ret; 4437 } 4438 4439 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4440 u8 tsid, const u8 *peer, u8 up, 4441 u16 admitted_time) 4442 { 4443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4444 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4445 int ac = ieee802_1d_to_ac[up]; 4446 4447 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4448 return -EOPNOTSUPP; 4449 4450 if (!(sdata->wmm_acm & BIT(up))) 4451 return -EINVAL; 4452 4453 if (ifmgd->tx_tspec[ac].admitted_time) 4454 return -EBUSY; 4455 4456 if (admitted_time) { 4457 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4458 ifmgd->tx_tspec[ac].tsid = tsid; 4459 ifmgd->tx_tspec[ac].up = up; 4460 } 4461 4462 return 0; 4463 } 4464 4465 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4466 u8 tsid, const u8 *peer) 4467 { 4468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4469 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4470 struct ieee80211_local *local = wiphy_priv(wiphy); 4471 int ac; 4472 4473 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4474 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4475 4476 /* skip unused entries */ 4477 if (!tx_tspec->admitted_time) 4478 continue; 4479 4480 if (tx_tspec->tsid != tsid) 4481 continue; 4482 4483 /* due to this new packets will be reassigned to non-ACM ACs */ 4484 tx_tspec->up = -1; 4485 4486 /* Make sure that all packets have been sent to avoid to 4487 * restore the QoS params on packets that are still on the 4488 * queues. 4489 */ 4490 synchronize_net(); 4491 ieee80211_flush_queues(local, sdata, false); 4492 4493 /* restore the normal QoS parameters 4494 * (unconditionally to avoid races) 4495 */ 4496 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4497 tx_tspec->downgraded = false; 4498 ieee80211_sta_handle_tspec_ac_params(sdata); 4499 4500 /* finally clear all the data */ 4501 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4502 4503 return 0; 4504 } 4505 4506 return -ENOENT; 4507 } 4508 4509 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4510 u8 inst_id, 4511 enum nl80211_nan_func_term_reason reason, 4512 gfp_t gfp) 4513 { 4514 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4515 struct cfg80211_nan_func *func; 4516 u64 cookie; 4517 4518 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4519 return; 4520 4521 spin_lock_bh(&sdata->u.nan.func_lock); 4522 4523 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4524 if (WARN_ON(!func)) { 4525 spin_unlock_bh(&sdata->u.nan.func_lock); 4526 return; 4527 } 4528 4529 cookie = func->cookie; 4530 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4531 4532 spin_unlock_bh(&sdata->u.nan.func_lock); 4533 4534 cfg80211_free_nan_func(func); 4535 4536 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4537 reason, cookie, gfp); 4538 } 4539 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4540 4541 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4542 struct cfg80211_nan_match_params *match, 4543 gfp_t gfp) 4544 { 4545 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4546 struct cfg80211_nan_func *func; 4547 4548 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4549 return; 4550 4551 spin_lock_bh(&sdata->u.nan.func_lock); 4552 4553 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4554 if (WARN_ON(!func)) { 4555 spin_unlock_bh(&sdata->u.nan.func_lock); 4556 return; 4557 } 4558 match->cookie = func->cookie; 4559 4560 spin_unlock_bh(&sdata->u.nan.func_lock); 4561 4562 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4563 } 4564 EXPORT_SYMBOL(ieee80211_nan_func_match); 4565 4566 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4567 struct net_device *dev, 4568 const bool enabled) 4569 { 4570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4571 4572 sdata->u.ap.multicast_to_unicast = enabled; 4573 4574 return 0; 4575 } 4576 4577 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4578 struct txq_info *txqi) 4579 { 4580 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4581 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4582 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4583 } 4584 4585 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4586 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4587 txqstats->backlog_packets = txqi->tin.backlog_packets; 4588 } 4589 4590 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4591 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4592 txqstats->flows = txqi->tin.flows; 4593 } 4594 4595 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4596 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4597 txqstats->drops = txqi->cstats.drop_count; 4598 } 4599 4600 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4601 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4602 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4603 } 4604 4605 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4606 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4607 txqstats->overlimit = txqi->tin.overlimit; 4608 } 4609 4610 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4611 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4612 txqstats->collisions = txqi->tin.collisions; 4613 } 4614 4615 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4616 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4617 txqstats->tx_bytes = txqi->tin.tx_bytes; 4618 } 4619 4620 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4621 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4622 txqstats->tx_packets = txqi->tin.tx_packets; 4623 } 4624 } 4625 4626 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4627 struct wireless_dev *wdev, 4628 struct cfg80211_txq_stats *txqstats) 4629 { 4630 struct ieee80211_local *local = wiphy_priv(wiphy); 4631 struct ieee80211_sub_if_data *sdata; 4632 int ret = 0; 4633 4634 spin_lock_bh(&local->fq.lock); 4635 rcu_read_lock(); 4636 4637 if (wdev) { 4638 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4639 if (!sdata->vif.txq) { 4640 ret = 1; 4641 goto out; 4642 } 4643 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4644 } else { 4645 /* phy stats */ 4646 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4647 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4648 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4649 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4650 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4651 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4652 txqstats->backlog_packets = local->fq.backlog; 4653 txqstats->backlog_bytes = local->fq.memory_usage; 4654 txqstats->overlimit = local->fq.overlimit; 4655 txqstats->overmemory = local->fq.overmemory; 4656 txqstats->collisions = local->fq.collisions; 4657 txqstats->max_flows = local->fq.flows_cnt; 4658 } 4659 4660 out: 4661 rcu_read_unlock(); 4662 spin_unlock_bh(&local->fq.lock); 4663 4664 return ret; 4665 } 4666 4667 static int 4668 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4669 struct net_device *dev, 4670 struct cfg80211_ftm_responder_stats *ftm_stats) 4671 { 4672 struct ieee80211_local *local = wiphy_priv(wiphy); 4673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4674 4675 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4676 } 4677 4678 static int 4679 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4680 struct cfg80211_pmsr_request *request) 4681 { 4682 struct ieee80211_local *local = wiphy_priv(wiphy); 4683 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4684 4685 return drv_start_pmsr(local, sdata, request); 4686 } 4687 4688 static void 4689 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4690 struct cfg80211_pmsr_request *request) 4691 { 4692 struct ieee80211_local *local = wiphy_priv(wiphy); 4693 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4694 4695 return drv_abort_pmsr(local, sdata, request); 4696 } 4697 4698 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4699 struct net_device *dev, 4700 struct cfg80211_tid_config *tid_conf) 4701 { 4702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4703 struct sta_info *sta; 4704 4705 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4706 4707 if (!sdata->local->ops->set_tid_config) 4708 return -EOPNOTSUPP; 4709 4710 if (!tid_conf->peer) 4711 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4712 4713 sta = sta_info_get_bss(sdata, tid_conf->peer); 4714 if (!sta) 4715 return -ENOENT; 4716 4717 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4718 } 4719 4720 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4721 struct net_device *dev, 4722 const u8 *peer, u8 tids) 4723 { 4724 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4725 struct sta_info *sta; 4726 4727 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4728 4729 if (!sdata->local->ops->reset_tid_config) 4730 return -EOPNOTSUPP; 4731 4732 if (!peer) 4733 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4734 4735 sta = sta_info_get_bss(sdata, peer); 4736 if (!sta) 4737 return -ENOENT; 4738 4739 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4740 } 4741 4742 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4743 struct cfg80211_sar_specs *sar) 4744 { 4745 struct ieee80211_local *local = wiphy_priv(wiphy); 4746 4747 if (!local->ops->set_sar_specs) 4748 return -EOPNOTSUPP; 4749 4750 return local->ops->set_sar_specs(&local->hw, sar); 4751 } 4752 4753 static int 4754 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4755 u64 *changed) 4756 { 4757 struct ieee80211_sub_if_data *sdata = link->sdata; 4758 4759 switch (sdata->vif.type) { 4760 case NL80211_IFTYPE_AP: { 4761 int ret; 4762 4763 if (!link->u.ap.next_beacon) 4764 return -EINVAL; 4765 4766 ret = ieee80211_assign_beacon(sdata, link, 4767 link->u.ap.next_beacon, 4768 NULL, NULL, changed); 4769 ieee80211_free_next_beacon(link); 4770 4771 if (ret < 0) 4772 return ret; 4773 4774 break; 4775 } 4776 default: 4777 WARN_ON_ONCE(1); 4778 return -EINVAL; 4779 } 4780 4781 return 0; 4782 } 4783 4784 static int 4785 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4786 struct cfg80211_color_change_settings *params, 4787 u64 *changed) 4788 { 4789 struct ieee80211_sub_if_data *sdata = link->sdata; 4790 struct ieee80211_color_change_settings color_change = {}; 4791 int err; 4792 4793 switch (sdata->vif.type) { 4794 case NL80211_IFTYPE_AP: 4795 link->u.ap.next_beacon = 4796 cfg80211_beacon_dup(¶ms->beacon_next); 4797 if (!link->u.ap.next_beacon) 4798 return -ENOMEM; 4799 4800 if (params->count <= 1) 4801 break; 4802 4803 color_change.counter_offset_beacon = 4804 params->counter_offset_beacon; 4805 color_change.counter_offset_presp = 4806 params->counter_offset_presp; 4807 color_change.count = params->count; 4808 4809 err = ieee80211_assign_beacon(sdata, link, 4810 ¶ms->beacon_color_change, 4811 NULL, &color_change, changed); 4812 if (err < 0) { 4813 ieee80211_free_next_beacon(link); 4814 return err; 4815 } 4816 break; 4817 default: 4818 return -EOPNOTSUPP; 4819 } 4820 4821 return 0; 4822 } 4823 4824 static void 4825 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4826 u8 color, int enable, u64 changed) 4827 { 4828 struct ieee80211_sub_if_data *sdata = link->sdata; 4829 4830 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4831 4832 link->conf->he_bss_color.color = color; 4833 link->conf->he_bss_color.enabled = enable; 4834 changed |= BSS_CHANGED_HE_BSS_COLOR; 4835 4836 ieee80211_link_info_change_notify(sdata, link, changed); 4837 4838 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4839 struct ieee80211_sub_if_data *child; 4840 4841 list_for_each_entry(child, &sdata->local->interfaces, list) { 4842 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4843 child->vif.bss_conf.he_bss_color.color = color; 4844 child->vif.bss_conf.he_bss_color.enabled = enable; 4845 ieee80211_link_info_change_notify(child, 4846 &child->deflink, 4847 BSS_CHANGED_HE_BSS_COLOR); 4848 } 4849 } 4850 } 4851 } 4852 4853 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4854 { 4855 struct ieee80211_sub_if_data *sdata = link->sdata; 4856 struct ieee80211_local *local = sdata->local; 4857 u64 changed = 0; 4858 int err; 4859 4860 lockdep_assert_wiphy(local->hw.wiphy); 4861 4862 link->conf->color_change_active = false; 4863 4864 err = ieee80211_set_after_color_change_beacon(link, &changed); 4865 if (err) { 4866 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4867 return err; 4868 } 4869 4870 ieee80211_color_change_bss_config_notify(link, 4871 link->conf->color_change_color, 4872 1, changed); 4873 cfg80211_color_change_notify(sdata->dev, link->link_id); 4874 4875 return 0; 4876 } 4877 4878 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4879 struct wiphy_work *work) 4880 { 4881 struct ieee80211_link_data *link = 4882 container_of(work, struct ieee80211_link_data, 4883 color_change_finalize_work); 4884 struct ieee80211_sub_if_data *sdata = link->sdata; 4885 struct ieee80211_bss_conf *link_conf = link->conf; 4886 struct ieee80211_local *local = sdata->local; 4887 4888 lockdep_assert_wiphy(local->hw.wiphy); 4889 4890 /* AP might have been stopped while waiting for the lock. */ 4891 if (!link_conf->color_change_active) 4892 return; 4893 4894 if (!ieee80211_sdata_running(sdata)) 4895 return; 4896 4897 ieee80211_color_change_finalize(link); 4898 } 4899 4900 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 4901 struct wiphy_work *work) 4902 { 4903 struct ieee80211_link_data *link = 4904 container_of(work, struct ieee80211_link_data, 4905 color_collision_detect_work.work); 4906 struct ieee80211_sub_if_data *sdata = link->sdata; 4907 4908 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 4909 link->link_id); 4910 } 4911 4912 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 4913 { 4914 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4915 struct ieee80211_link_data *link; 4916 4917 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4918 return; 4919 4920 rcu_read_lock(); 4921 4922 link = rcu_dereference(sdata->link[link_id]); 4923 if (WARN_ON(!link)) { 4924 rcu_read_unlock(); 4925 return; 4926 } 4927 4928 wiphy_work_queue(sdata->local->hw.wiphy, 4929 &link->color_change_finalize_work); 4930 4931 rcu_read_unlock(); 4932 } 4933 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4934 4935 void 4936 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4937 u64 color_bitmap, u8 link_id) 4938 { 4939 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4940 struct ieee80211_link_data *link; 4941 4942 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4943 return; 4944 4945 rcu_read_lock(); 4946 4947 link = rcu_dereference(sdata->link[link_id]); 4948 if (WARN_ON(!link)) { 4949 rcu_read_unlock(); 4950 return; 4951 } 4952 4953 if (link->conf->color_change_active || link->conf->csa_active) { 4954 rcu_read_unlock(); 4955 return; 4956 } 4957 4958 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 4959 &link->color_collision_detect_work)) { 4960 rcu_read_unlock(); 4961 return; 4962 } 4963 4964 link->color_bitmap = color_bitmap; 4965 /* queue the color collision detection event every 500 ms in order to 4966 * avoid sending too much netlink messages to userspace. 4967 */ 4968 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 4969 &link->color_collision_detect_work, 4970 msecs_to_jiffies(500)); 4971 4972 rcu_read_unlock(); 4973 } 4974 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4975 4976 static int 4977 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4978 struct cfg80211_color_change_settings *params) 4979 { 4980 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4981 struct ieee80211_local *local = sdata->local; 4982 struct ieee80211_bss_conf *link_conf; 4983 struct ieee80211_link_data *link; 4984 u8 link_id = params->link_id; 4985 u64 changed = 0; 4986 int err; 4987 4988 lockdep_assert_wiphy(local->hw.wiphy); 4989 4990 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4991 return -EINVAL; 4992 4993 link = wiphy_dereference(wiphy, sdata->link[link_id]); 4994 if (!link) 4995 return -ENOLINK; 4996 4997 link_conf = link->conf; 4998 4999 if (link_conf->nontransmitted) 5000 return -EINVAL; 5001 5002 /* don't allow another color change if one is already active or if csa 5003 * is active 5004 */ 5005 if (link_conf->color_change_active || link_conf->csa_active) { 5006 err = -EBUSY; 5007 goto out; 5008 } 5009 5010 err = ieee80211_set_color_change_beacon(link, params, &changed); 5011 if (err) 5012 goto out; 5013 5014 link_conf->color_change_active = true; 5015 link_conf->color_change_color = params->color; 5016 5017 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5018 5019 if (changed) 5020 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5021 else 5022 /* if the beacon didn't change, we can finalize immediately */ 5023 ieee80211_color_change_finalize(link); 5024 5025 out: 5026 5027 return err; 5028 } 5029 5030 static int 5031 ieee80211_set_radar_background(struct wiphy *wiphy, 5032 struct cfg80211_chan_def *chandef) 5033 { 5034 struct ieee80211_local *local = wiphy_priv(wiphy); 5035 5036 if (!local->ops->set_radar_background) 5037 return -EOPNOTSUPP; 5038 5039 return local->ops->set_radar_background(&local->hw, chandef); 5040 } 5041 5042 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5043 struct wireless_dev *wdev, 5044 unsigned int link_id) 5045 { 5046 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5047 5048 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5049 5050 if (wdev->use_4addr) 5051 return -EOPNOTSUPP; 5052 5053 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5054 } 5055 5056 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5057 struct wireless_dev *wdev, 5058 unsigned int link_id) 5059 { 5060 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5061 u16 new_links = wdev->valid_links & ~BIT(link_id); 5062 5063 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5064 5065 /* During the link teardown process, certain functions require the 5066 * link_id to remain in the valid_links bitmap. Therefore, instead 5067 * of removing the link_id from the bitmap, pass a masked value to 5068 * simulate as if link_id does not exist anymore. 5069 */ 5070 ieee80211_vif_set_links(sdata, new_links, 0); 5071 } 5072 5073 static int 5074 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5075 struct link_station_parameters *params) 5076 { 5077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5078 struct ieee80211_local *local = wiphy_priv(wiphy); 5079 struct sta_info *sta; 5080 int ret; 5081 5082 lockdep_assert_wiphy(local->hw.wiphy); 5083 5084 sta = sta_info_get_bss(sdata, params->mld_mac); 5085 if (!sta) 5086 return -ENOENT; 5087 5088 if (!sta->sta.valid_links) 5089 return -EINVAL; 5090 5091 if (sta->sta.valid_links & BIT(params->link_id)) 5092 return -EALREADY; 5093 5094 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5095 if (ret) 5096 return ret; 5097 5098 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5099 if (ret) { 5100 ieee80211_sta_free_link(sta, params->link_id); 5101 return ret; 5102 } 5103 5104 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5105 struct link_sta_info *link_sta; 5106 5107 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5108 rate_control_rate_init(link_sta); 5109 } 5110 5111 /* ieee80211_sta_activate_link frees the link upon failure */ 5112 return ieee80211_sta_activate_link(sta, params->link_id); 5113 } 5114 5115 static int 5116 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5117 struct link_station_parameters *params) 5118 { 5119 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5120 struct ieee80211_local *local = wiphy_priv(wiphy); 5121 struct sta_info *sta; 5122 5123 lockdep_assert_wiphy(local->hw.wiphy); 5124 5125 sta = sta_info_get_bss(sdata, params->mld_mac); 5126 if (!sta) 5127 return -ENOENT; 5128 5129 if (!(sta->sta.valid_links & BIT(params->link_id))) 5130 return -EINVAL; 5131 5132 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5133 params); 5134 } 5135 5136 static int 5137 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5138 struct link_station_del_parameters *params) 5139 { 5140 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5141 struct sta_info *sta; 5142 5143 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5144 5145 sta = sta_info_get_bss(sdata, params->mld_mac); 5146 if (!sta) 5147 return -ENOENT; 5148 5149 if (!(sta->sta.valid_links & BIT(params->link_id))) 5150 return -EINVAL; 5151 5152 /* must not create a STA without links */ 5153 if (sta->sta.valid_links == BIT(params->link_id)) 5154 return -EINVAL; 5155 5156 ieee80211_sta_remove_link(sta, params->link_id); 5157 5158 return 0; 5159 } 5160 5161 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5162 struct net_device *dev, 5163 struct cfg80211_set_hw_timestamp *hwts) 5164 { 5165 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5166 struct ieee80211_local *local = sdata->local; 5167 5168 if (!local->ops->set_hw_timestamp) 5169 return -EOPNOTSUPP; 5170 5171 if (!check_sdata_in_driver(sdata)) 5172 return -EIO; 5173 5174 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5175 } 5176 5177 static int 5178 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5179 struct cfg80211_ttlm_params *params) 5180 { 5181 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5182 5183 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5184 5185 return ieee80211_req_neg_ttlm(sdata, params); 5186 } 5187 5188 static int 5189 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5190 struct cfg80211_assoc_link *add_links, 5191 u16 rem_links) 5192 { 5193 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5194 5195 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5196 5197 return ieee80211_mgd_assoc_ml_reconf(sdata, add_links, rem_links); 5198 } 5199 5200 const struct cfg80211_ops mac80211_config_ops = { 5201 .add_virtual_intf = ieee80211_add_iface, 5202 .del_virtual_intf = ieee80211_del_iface, 5203 .change_virtual_intf = ieee80211_change_iface, 5204 .start_p2p_device = ieee80211_start_p2p_device, 5205 .stop_p2p_device = ieee80211_stop_p2p_device, 5206 .add_key = ieee80211_add_key, 5207 .del_key = ieee80211_del_key, 5208 .get_key = ieee80211_get_key, 5209 .set_default_key = ieee80211_config_default_key, 5210 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5211 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5212 .start_ap = ieee80211_start_ap, 5213 .change_beacon = ieee80211_change_beacon, 5214 .stop_ap = ieee80211_stop_ap, 5215 .add_station = ieee80211_add_station, 5216 .del_station = ieee80211_del_station, 5217 .change_station = ieee80211_change_station, 5218 .get_station = ieee80211_get_station, 5219 .dump_station = ieee80211_dump_station, 5220 .dump_survey = ieee80211_dump_survey, 5221 #ifdef CONFIG_MAC80211_MESH 5222 .add_mpath = ieee80211_add_mpath, 5223 .del_mpath = ieee80211_del_mpath, 5224 .change_mpath = ieee80211_change_mpath, 5225 .get_mpath = ieee80211_get_mpath, 5226 .dump_mpath = ieee80211_dump_mpath, 5227 .get_mpp = ieee80211_get_mpp, 5228 .dump_mpp = ieee80211_dump_mpp, 5229 .update_mesh_config = ieee80211_update_mesh_config, 5230 .get_mesh_config = ieee80211_get_mesh_config, 5231 .join_mesh = ieee80211_join_mesh, 5232 .leave_mesh = ieee80211_leave_mesh, 5233 #endif 5234 .join_ocb = ieee80211_join_ocb, 5235 .leave_ocb = ieee80211_leave_ocb, 5236 .change_bss = ieee80211_change_bss, 5237 .inform_bss = ieee80211_inform_bss, 5238 .set_txq_params = ieee80211_set_txq_params, 5239 .set_monitor_channel = ieee80211_set_monitor_channel, 5240 .suspend = ieee80211_suspend, 5241 .resume = ieee80211_resume, 5242 .scan = ieee80211_scan, 5243 .abort_scan = ieee80211_abort_scan, 5244 .sched_scan_start = ieee80211_sched_scan_start, 5245 .sched_scan_stop = ieee80211_sched_scan_stop, 5246 .auth = ieee80211_auth, 5247 .assoc = ieee80211_assoc, 5248 .deauth = ieee80211_deauth, 5249 .disassoc = ieee80211_disassoc, 5250 .join_ibss = ieee80211_join_ibss, 5251 .leave_ibss = ieee80211_leave_ibss, 5252 .set_mcast_rate = ieee80211_set_mcast_rate, 5253 .set_wiphy_params = ieee80211_set_wiphy_params, 5254 .set_tx_power = ieee80211_set_tx_power, 5255 .get_tx_power = ieee80211_get_tx_power, 5256 .rfkill_poll = ieee80211_rfkill_poll, 5257 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5258 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5259 .set_power_mgmt = ieee80211_set_power_mgmt, 5260 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5261 .remain_on_channel = ieee80211_remain_on_channel, 5262 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5263 .mgmt_tx = ieee80211_mgmt_tx, 5264 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5265 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5266 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5267 .update_mgmt_frame_registrations = 5268 ieee80211_update_mgmt_frame_registrations, 5269 .set_antenna = ieee80211_set_antenna, 5270 .get_antenna = ieee80211_get_antenna, 5271 .set_rekey_data = ieee80211_set_rekey_data, 5272 .tdls_oper = ieee80211_tdls_oper, 5273 .tdls_mgmt = ieee80211_tdls_mgmt, 5274 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5275 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5276 .probe_client = ieee80211_probe_client, 5277 .set_noack_map = ieee80211_set_noack_map, 5278 #ifdef CONFIG_PM 5279 .set_wakeup = ieee80211_set_wakeup, 5280 #endif 5281 .get_channel = ieee80211_cfg_get_channel, 5282 .start_radar_detection = ieee80211_start_radar_detection, 5283 .end_cac = ieee80211_end_cac, 5284 .channel_switch = ieee80211_channel_switch, 5285 .set_qos_map = ieee80211_set_qos_map, 5286 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5287 .add_tx_ts = ieee80211_add_tx_ts, 5288 .del_tx_ts = ieee80211_del_tx_ts, 5289 .start_nan = ieee80211_start_nan, 5290 .stop_nan = ieee80211_stop_nan, 5291 .nan_change_conf = ieee80211_nan_change_conf, 5292 .add_nan_func = ieee80211_add_nan_func, 5293 .del_nan_func = ieee80211_del_nan_func, 5294 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5295 .tx_control_port = ieee80211_tx_control_port, 5296 .get_txq_stats = ieee80211_get_txq_stats, 5297 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5298 .start_pmsr = ieee80211_start_pmsr, 5299 .abort_pmsr = ieee80211_abort_pmsr, 5300 .probe_mesh_link = ieee80211_probe_mesh_link, 5301 .set_tid_config = ieee80211_set_tid_config, 5302 .reset_tid_config = ieee80211_reset_tid_config, 5303 .set_sar_specs = ieee80211_set_sar_specs, 5304 .color_change = ieee80211_color_change, 5305 .set_radar_background = ieee80211_set_radar_background, 5306 .add_intf_link = ieee80211_add_intf_link, 5307 .del_intf_link = ieee80211_del_intf_link, 5308 .add_link_station = ieee80211_add_link_station, 5309 .mod_link_station = ieee80211_mod_link_station, 5310 .del_link_station = ieee80211_del_link_station, 5311 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5312 .set_ttlm = ieee80211_set_ttlm, 5313 .get_radio_mask = ieee80211_get_radio_mask, 5314 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5315 }; 5316