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