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 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 lockdep_assert_wiphy(local->hw.wiphy); 218 219 ret = ieee80211_if_change_type(sdata, type); 220 if (ret) 221 return ret; 222 223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 225 ieee80211_check_fast_rx_iface(sdata); 226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 228 229 if (params->use_4addr == ifmgd->use_4addr) 230 return 0; 231 232 /* FIXME: no support for 4-addr MLO yet */ 233 if (ieee80211_vif_is_mld(&sdata->vif)) 234 return -EOPNOTSUPP; 235 236 sdata->u.mgd.use_4addr = params->use_4addr; 237 if (!ifmgd->associated) 238 return 0; 239 240 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 241 if (sta) 242 drv_sta_set_4addr(local, sdata, &sta->sta, 243 params->use_4addr); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 lockdep_assert_wiphy(sdata->local->hw.wiphy); 265 266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 456 457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 458 ret = ieee80211_set_tx_key(key); 459 460 return ret; 461 } 462 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 464 int link_id, u8 key_idx, bool pairwise, 465 const u8 *mac_addr, struct key_params *params) 466 { 467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 468 struct ieee80211_link_data *link = 469 ieee80211_link_or_deflink(sdata, link_id, false); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta = NULL; 472 struct ieee80211_key *key; 473 int err; 474 475 lockdep_assert_wiphy(local->hw.wiphy); 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 if (mac_addr) { 514 sta = sta_info_get_bss(sdata, mac_addr); 515 /* 516 * The ASSOC test makes sure the driver is ready to 517 * receive the key. When wpa_supplicant has roamed 518 * using FT, it attempts to set the key before 519 * association has completed, this rejects that attempt 520 * so it will set the key again after association. 521 * 522 * TODO: accept the key if we have a station entry and 523 * add it to the device after the station. 524 */ 525 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 526 ieee80211_key_free_unused(key); 527 return -ENOENT; 528 } 529 } 530 531 switch (sdata->vif.type) { 532 case NL80211_IFTYPE_STATION: 533 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 534 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 535 break; 536 case NL80211_IFTYPE_AP: 537 case NL80211_IFTYPE_AP_VLAN: 538 /* Keys without a station are used for TX only */ 539 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 540 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 541 break; 542 case NL80211_IFTYPE_ADHOC: 543 /* no MFP (yet) */ 544 break; 545 case NL80211_IFTYPE_MESH_POINT: 546 #ifdef CONFIG_MAC80211_MESH 547 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 548 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 549 break; 550 #endif 551 case NL80211_IFTYPE_WDS: 552 case NL80211_IFTYPE_MONITOR: 553 case NL80211_IFTYPE_P2P_DEVICE: 554 case NL80211_IFTYPE_NAN: 555 case NL80211_IFTYPE_UNSPECIFIED: 556 case NUM_NL80211_IFTYPES: 557 case NL80211_IFTYPE_P2P_CLIENT: 558 case NL80211_IFTYPE_P2P_GO: 559 case NL80211_IFTYPE_OCB: 560 /* shouldn't happen */ 561 WARN_ON_ONCE(1); 562 break; 563 } 564 565 err = ieee80211_key_link(key, link, sta); 566 /* KRACK protection, shouldn't happen but just silently accept key */ 567 if (err == -EALREADY) 568 err = 0; 569 570 return err; 571 } 572 573 static struct ieee80211_key * 574 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 575 u8 key_idx, bool pairwise, const u8 *mac_addr) 576 { 577 struct ieee80211_local *local __maybe_unused = sdata->local; 578 struct ieee80211_link_data *link = &sdata->deflink; 579 struct ieee80211_key *key; 580 581 if (link_id >= 0) { 582 link = sdata_dereference(sdata->link[link_id], sdata); 583 if (!link) 584 return NULL; 585 } 586 587 if (mac_addr) { 588 struct sta_info *sta; 589 struct link_sta_info *link_sta; 590 591 sta = sta_info_get_bss(sdata, mac_addr); 592 if (!sta) 593 return NULL; 594 595 if (link_id >= 0) { 596 link_sta = rcu_dereference_check(sta->link[link_id], 597 lockdep_is_held(&local->hw.wiphy->mtx)); 598 if (!link_sta) 599 return NULL; 600 } else { 601 link_sta = &sta->deflink; 602 } 603 604 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 605 return wiphy_dereference(local->hw.wiphy, 606 sta->ptk[key_idx]); 607 608 if (!pairwise && 609 key_idx < NUM_DEFAULT_KEYS + 610 NUM_DEFAULT_MGMT_KEYS + 611 NUM_DEFAULT_BEACON_KEYS) 612 return wiphy_dereference(local->hw.wiphy, 613 link_sta->gtk[key_idx]); 614 615 return NULL; 616 } 617 618 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 619 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 620 621 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 622 if (key) 623 return key; 624 625 /* or maybe it was a WEP key */ 626 if (key_idx < NUM_DEFAULT_KEYS) 627 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 628 629 return NULL; 630 } 631 632 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 633 int link_id, u8 key_idx, bool pairwise, 634 const u8 *mac_addr) 635 { 636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 637 struct ieee80211_local *local = sdata->local; 638 struct ieee80211_key *key; 639 640 lockdep_assert_wiphy(local->hw.wiphy); 641 642 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 643 if (!key) 644 return -ENOENT; 645 646 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 647 648 return 0; 649 } 650 651 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 652 int link_id, u8 key_idx, bool pairwise, 653 const u8 *mac_addr, void *cookie, 654 void (*callback)(void *cookie, 655 struct key_params *params)) 656 { 657 struct ieee80211_sub_if_data *sdata; 658 u8 seq[6] = {0}; 659 struct key_params params; 660 struct ieee80211_key *key; 661 u64 pn64; 662 u32 iv32; 663 u16 iv16; 664 int err = -ENOENT; 665 struct ieee80211_key_seq kseq = {}; 666 667 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 668 669 rcu_read_lock(); 670 671 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 672 if (!key) 673 goto out; 674 675 memset(¶ms, 0, sizeof(params)); 676 677 params.cipher = key->conf.cipher; 678 679 switch (key->conf.cipher) { 680 case WLAN_CIPHER_SUITE_TKIP: 681 pn64 = atomic64_read(&key->conf.tx_pn); 682 iv32 = TKIP_PN_TO_IV32(pn64); 683 iv16 = TKIP_PN_TO_IV16(pn64); 684 685 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 686 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 687 drv_get_key_seq(sdata->local, key, &kseq); 688 iv32 = kseq.tkip.iv32; 689 iv16 = kseq.tkip.iv16; 690 } 691 692 seq[0] = iv16 & 0xff; 693 seq[1] = (iv16 >> 8) & 0xff; 694 seq[2] = iv32 & 0xff; 695 seq[3] = (iv32 >> 8) & 0xff; 696 seq[4] = (iv32 >> 16) & 0xff; 697 seq[5] = (iv32 >> 24) & 0xff; 698 params.seq = seq; 699 params.seq_len = 6; 700 break; 701 case WLAN_CIPHER_SUITE_CCMP: 702 case WLAN_CIPHER_SUITE_CCMP_256: 703 case WLAN_CIPHER_SUITE_AES_CMAC: 704 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 705 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 706 offsetof(typeof(kseq), aes_cmac)); 707 fallthrough; 708 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 709 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 710 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 711 offsetof(typeof(kseq), aes_gmac)); 712 fallthrough; 713 case WLAN_CIPHER_SUITE_GCMP: 714 case WLAN_CIPHER_SUITE_GCMP_256: 715 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 716 offsetof(typeof(kseq), gcmp)); 717 718 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 719 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 720 drv_get_key_seq(sdata->local, key, &kseq); 721 memcpy(seq, kseq.ccmp.pn, 6); 722 } else { 723 pn64 = atomic64_read(&key->conf.tx_pn); 724 seq[0] = pn64; 725 seq[1] = pn64 >> 8; 726 seq[2] = pn64 >> 16; 727 seq[3] = pn64 >> 24; 728 seq[4] = pn64 >> 32; 729 seq[5] = pn64 >> 40; 730 } 731 params.seq = seq; 732 params.seq_len = 6; 733 break; 734 default: 735 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 736 break; 737 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 738 break; 739 drv_get_key_seq(sdata->local, key, &kseq); 740 params.seq = kseq.hw.seq; 741 params.seq_len = kseq.hw.seq_len; 742 break; 743 } 744 745 params.key = key->conf.key; 746 params.key_len = key->conf.keylen; 747 748 callback(cookie, ¶ms); 749 err = 0; 750 751 out: 752 rcu_read_unlock(); 753 return err; 754 } 755 756 static int ieee80211_config_default_key(struct wiphy *wiphy, 757 struct net_device *dev, 758 int link_id, u8 key_idx, bool uni, 759 bool multi) 760 { 761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 762 struct ieee80211_link_data *link = 763 ieee80211_link_or_deflink(sdata, link_id, false); 764 765 if (IS_ERR(link)) 766 return PTR_ERR(link); 767 768 ieee80211_set_default_key(link, key_idx, uni, multi); 769 770 return 0; 771 } 772 773 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 774 struct net_device *dev, 775 int link_id, u8 key_idx) 776 { 777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 778 struct ieee80211_link_data *link = 779 ieee80211_link_or_deflink(sdata, link_id, true); 780 781 if (IS_ERR(link)) 782 return PTR_ERR(link); 783 784 ieee80211_set_default_mgmt_key(link, key_idx); 785 786 return 0; 787 } 788 789 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 790 struct net_device *dev, 791 int link_id, u8 key_idx) 792 { 793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 794 struct ieee80211_link_data *link = 795 ieee80211_link_or_deflink(sdata, link_id, true); 796 797 if (IS_ERR(link)) 798 return PTR_ERR(link); 799 800 ieee80211_set_default_beacon_key(link, key_idx); 801 802 return 0; 803 } 804 805 void sta_set_rate_info_tx(struct sta_info *sta, 806 const struct ieee80211_tx_rate *rate, 807 struct rate_info *rinfo) 808 { 809 rinfo->flags = 0; 810 if (rate->flags & IEEE80211_TX_RC_MCS) { 811 rinfo->flags |= RATE_INFO_FLAGS_MCS; 812 rinfo->mcs = rate->idx; 813 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 814 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 815 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 816 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 817 } else { 818 struct ieee80211_supported_band *sband; 819 820 sband = ieee80211_get_sband(sta->sdata); 821 WARN_ON_ONCE(sband && !sband->bitrates); 822 if (sband && sband->bitrates) 823 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 824 } 825 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 826 rinfo->bw = RATE_INFO_BW_40; 827 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 828 rinfo->bw = RATE_INFO_BW_80; 829 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 830 rinfo->bw = RATE_INFO_BW_160; 831 else 832 rinfo->bw = RATE_INFO_BW_20; 833 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 834 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 835 } 836 837 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 838 int idx, u8 *mac, struct station_info *sinfo) 839 { 840 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 841 struct ieee80211_local *local = sdata->local; 842 struct sta_info *sta; 843 int ret = -ENOENT; 844 845 lockdep_assert_wiphy(local->hw.wiphy); 846 847 sta = sta_info_get_by_idx(sdata, idx); 848 if (sta) { 849 ret = 0; 850 memcpy(mac, sta->sta.addr, ETH_ALEN); 851 sta_set_sinfo(sta, sinfo, true); 852 } 853 854 return ret; 855 } 856 857 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 858 int idx, struct survey_info *survey) 859 { 860 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 861 862 return drv_get_survey(local, idx, survey); 863 } 864 865 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 866 const u8 *mac, struct station_info *sinfo) 867 { 868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 869 struct ieee80211_local *local = sdata->local; 870 struct sta_info *sta; 871 int ret = -ENOENT; 872 873 lockdep_assert_wiphy(local->hw.wiphy); 874 875 sta = sta_info_get_bss(sdata, mac); 876 if (sta) { 877 ret = 0; 878 sta_set_sinfo(sta, sinfo, true); 879 } 880 881 return ret; 882 } 883 884 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 885 struct cfg80211_chan_def *chandef) 886 { 887 struct ieee80211_local *local = wiphy_priv(wiphy); 888 struct ieee80211_sub_if_data *sdata; 889 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 890 int ret; 891 892 lockdep_assert_wiphy(local->hw.wiphy); 893 894 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 895 &chanreq.oper)) 896 return 0; 897 898 sdata = wiphy_dereference(local->hw.wiphy, 899 local->monitor_sdata); 900 if (!sdata) 901 goto done; 902 903 if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 904 &chanreq.oper)) 905 return 0; 906 907 ieee80211_link_release_channel(&sdata->deflink); 908 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 909 IEEE80211_CHANCTX_EXCLUSIVE); 910 if (ret) 911 return ret; 912 done: 913 local->monitor_chanreq = chanreq; 914 return 0; 915 } 916 917 static int 918 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 919 const u8 *resp, size_t resp_len, 920 const struct ieee80211_csa_settings *csa, 921 const struct ieee80211_color_change_settings *cca, 922 struct ieee80211_link_data *link) 923 { 924 struct probe_resp *new, *old; 925 926 if (!resp || !resp_len) 927 return 1; 928 929 old = sdata_dereference(link->u.ap.probe_resp, sdata); 930 931 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 932 if (!new) 933 return -ENOMEM; 934 935 new->len = resp_len; 936 memcpy(new->data, resp, resp_len); 937 938 if (csa) 939 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 940 csa->n_counter_offsets_presp * 941 sizeof(new->cntdwn_counter_offsets[0])); 942 else if (cca) 943 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 944 945 rcu_assign_pointer(link->u.ap.probe_resp, new); 946 if (old) 947 kfree_rcu(old, rcu_head); 948 949 return 0; 950 } 951 952 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 953 struct cfg80211_fils_discovery *params, 954 struct ieee80211_link_data *link, 955 struct ieee80211_bss_conf *link_conf, 956 u64 *changed) 957 { 958 struct fils_discovery_data *new, *old = NULL; 959 struct ieee80211_fils_discovery *fd; 960 961 if (!params->update) 962 return 0; 963 964 fd = &link_conf->fils_discovery; 965 fd->min_interval = params->min_interval; 966 fd->max_interval = params->max_interval; 967 968 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 969 if (old) 970 kfree_rcu(old, rcu_head); 971 972 if (params->tmpl && params->tmpl_len) { 973 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 974 if (!new) 975 return -ENOMEM; 976 new->len = params->tmpl_len; 977 memcpy(new->data, params->tmpl, params->tmpl_len); 978 rcu_assign_pointer(link->u.ap.fils_discovery, new); 979 } else { 980 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 981 } 982 983 *changed |= BSS_CHANGED_FILS_DISCOVERY; 984 return 0; 985 } 986 987 static int 988 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 989 struct cfg80211_unsol_bcast_probe_resp *params, 990 struct ieee80211_link_data *link, 991 struct ieee80211_bss_conf *link_conf, 992 u64 *changed) 993 { 994 struct unsol_bcast_probe_resp_data *new, *old = NULL; 995 996 if (!params->update) 997 return 0; 998 999 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1000 1001 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1002 if (old) 1003 kfree_rcu(old, rcu_head); 1004 1005 if (params->tmpl && params->tmpl_len) { 1006 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1007 if (!new) 1008 return -ENOMEM; 1009 new->len = params->tmpl_len; 1010 memcpy(new->data, params->tmpl, params->tmpl_len); 1011 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1012 } else { 1013 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1014 } 1015 1016 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1017 return 0; 1018 } 1019 1020 static int ieee80211_set_ftm_responder_params( 1021 struct ieee80211_sub_if_data *sdata, 1022 const u8 *lci, size_t lci_len, 1023 const u8 *civicloc, size_t civicloc_len, 1024 struct ieee80211_bss_conf *link_conf) 1025 { 1026 struct ieee80211_ftm_responder_params *new, *old; 1027 u8 *pos; 1028 int len; 1029 1030 if (!lci_len && !civicloc_len) 1031 return 0; 1032 1033 old = link_conf->ftmr_params; 1034 len = lci_len + civicloc_len; 1035 1036 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1037 if (!new) 1038 return -ENOMEM; 1039 1040 pos = (u8 *)(new + 1); 1041 if (lci_len) { 1042 new->lci_len = lci_len; 1043 new->lci = pos; 1044 memcpy(pos, lci, lci_len); 1045 pos += lci_len; 1046 } 1047 1048 if (civicloc_len) { 1049 new->civicloc_len = civicloc_len; 1050 new->civicloc = pos; 1051 memcpy(pos, civicloc, civicloc_len); 1052 pos += civicloc_len; 1053 } 1054 1055 link_conf->ftmr_params = new; 1056 kfree(old); 1057 1058 return 0; 1059 } 1060 1061 static int 1062 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1063 struct cfg80211_mbssid_elems *src) 1064 { 1065 int i, offset = 0; 1066 1067 for (i = 0; i < src->cnt; i++) { 1068 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1069 dst->elem[i].len = src->elem[i].len; 1070 dst->elem[i].data = pos + offset; 1071 offset += dst->elem[i].len; 1072 } 1073 dst->cnt = src->cnt; 1074 1075 return offset; 1076 } 1077 1078 static int 1079 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1080 struct cfg80211_rnr_elems *src) 1081 { 1082 int i, offset = 0; 1083 1084 for (i = 0; i < src->cnt; i++) { 1085 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1086 dst->elem[i].len = src->elem[i].len; 1087 dst->elem[i].data = pos + offset; 1088 offset += dst->elem[i].len; 1089 } 1090 dst->cnt = src->cnt; 1091 1092 return offset; 1093 } 1094 1095 static int 1096 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1097 struct ieee80211_link_data *link, 1098 struct cfg80211_beacon_data *params, 1099 const struct ieee80211_csa_settings *csa, 1100 const struct ieee80211_color_change_settings *cca, 1101 u64 *changed) 1102 { 1103 struct cfg80211_mbssid_elems *mbssid = NULL; 1104 struct cfg80211_rnr_elems *rnr = NULL; 1105 struct beacon_data *new, *old; 1106 int new_head_len, new_tail_len; 1107 int size, err; 1108 u64 _changed = BSS_CHANGED_BEACON; 1109 struct ieee80211_bss_conf *link_conf = link->conf; 1110 1111 old = sdata_dereference(link->u.ap.beacon, sdata); 1112 1113 /* Need to have a beacon head if we don't have one yet */ 1114 if (!params->head && !old) 1115 return -EINVAL; 1116 1117 /* new or old head? */ 1118 if (params->head) 1119 new_head_len = params->head_len; 1120 else 1121 new_head_len = old->head_len; 1122 1123 /* new or old tail? */ 1124 if (params->tail || !old) 1125 /* params->tail_len will be zero for !params->tail */ 1126 new_tail_len = params->tail_len; 1127 else 1128 new_tail_len = old->tail_len; 1129 1130 size = sizeof(*new) + new_head_len + new_tail_len; 1131 1132 /* new or old multiple BSSID elements? */ 1133 if (params->mbssid_ies) { 1134 mbssid = params->mbssid_ies; 1135 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1136 if (params->rnr_ies) { 1137 rnr = params->rnr_ies; 1138 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1139 } 1140 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1141 mbssid->cnt); 1142 } else if (old && old->mbssid_ies) { 1143 mbssid = old->mbssid_ies; 1144 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1145 if (old && old->rnr_ies) { 1146 rnr = old->rnr_ies; 1147 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1148 } 1149 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1150 mbssid->cnt); 1151 } 1152 1153 new = kzalloc(size, GFP_KERNEL); 1154 if (!new) 1155 return -ENOMEM; 1156 1157 /* start filling the new info now */ 1158 1159 /* 1160 * pointers go into the block we allocated, 1161 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1162 */ 1163 new->head = ((u8 *) new) + sizeof(*new); 1164 new->tail = new->head + new_head_len; 1165 new->head_len = new_head_len; 1166 new->tail_len = new_tail_len; 1167 /* copy in optional mbssid_ies */ 1168 if (mbssid) { 1169 u8 *pos = new->tail + new->tail_len; 1170 1171 new->mbssid_ies = (void *)pos; 1172 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1173 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1174 mbssid); 1175 if (rnr) { 1176 new->rnr_ies = (void *)pos; 1177 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1178 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1179 } 1180 /* update bssid_indicator */ 1181 link_conf->bssid_indicator = 1182 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1183 } 1184 1185 if (csa) { 1186 new->cntdwn_current_counter = csa->count; 1187 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1188 csa->n_counter_offsets_beacon * 1189 sizeof(new->cntdwn_counter_offsets[0])); 1190 } else if (cca) { 1191 new->cntdwn_current_counter = cca->count; 1192 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1193 } 1194 1195 /* copy in head */ 1196 if (params->head) 1197 memcpy(new->head, params->head, new_head_len); 1198 else 1199 memcpy(new->head, old->head, new_head_len); 1200 1201 /* copy in optional tail */ 1202 if (params->tail) 1203 memcpy(new->tail, params->tail, new_tail_len); 1204 else 1205 if (old) 1206 memcpy(new->tail, old->tail, new_tail_len); 1207 1208 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1209 params->probe_resp_len, csa, cca, link); 1210 if (err < 0) { 1211 kfree(new); 1212 return err; 1213 } 1214 if (err == 0) 1215 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1216 1217 if (params->ftm_responder != -1) { 1218 link_conf->ftm_responder = params->ftm_responder; 1219 err = ieee80211_set_ftm_responder_params(sdata, 1220 params->lci, 1221 params->lci_len, 1222 params->civicloc, 1223 params->civicloc_len, 1224 link_conf); 1225 1226 if (err < 0) { 1227 kfree(new); 1228 return err; 1229 } 1230 1231 _changed |= BSS_CHANGED_FTM_RESPONDER; 1232 } 1233 1234 rcu_assign_pointer(link->u.ap.beacon, new); 1235 sdata->u.ap.active = true; 1236 1237 if (old) 1238 kfree_rcu(old, rcu_head); 1239 1240 *changed |= _changed; 1241 return 0; 1242 } 1243 1244 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1245 { 1246 struct ieee80211_link_data *link; 1247 u8 link_id, num = 0; 1248 1249 if (sdata->vif.type != NL80211_IFTYPE_AP && 1250 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1251 return num; 1252 1253 if (!sdata->vif.valid_links) 1254 return num; 1255 1256 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1257 link = sdata_dereference(sdata->link[link_id], sdata); 1258 if (!link) 1259 continue; 1260 1261 if (sdata_dereference(link->u.ap.beacon, sdata)) 1262 num++; 1263 } 1264 1265 return num; 1266 } 1267 1268 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1269 struct cfg80211_ap_settings *params) 1270 { 1271 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1272 struct ieee80211_local *local = sdata->local; 1273 struct beacon_data *old; 1274 struct ieee80211_sub_if_data *vlan; 1275 u64 changed = BSS_CHANGED_BEACON_INT | 1276 BSS_CHANGED_BEACON_ENABLED | 1277 BSS_CHANGED_BEACON | 1278 BSS_CHANGED_P2P_PS | 1279 BSS_CHANGED_TXPOWER | 1280 BSS_CHANGED_TWT; 1281 int i, err; 1282 int prev_beacon_int; 1283 unsigned int link_id = params->beacon.link_id; 1284 struct ieee80211_link_data *link; 1285 struct ieee80211_bss_conf *link_conf; 1286 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1287 1288 lockdep_assert_wiphy(local->hw.wiphy); 1289 1290 link = sdata_dereference(sdata->link[link_id], sdata); 1291 if (!link) 1292 return -ENOLINK; 1293 1294 link_conf = link->conf; 1295 1296 old = sdata_dereference(link->u.ap.beacon, sdata); 1297 if (old) 1298 return -EALREADY; 1299 1300 if (params->smps_mode != NL80211_SMPS_OFF) 1301 return -EOPNOTSUPP; 1302 1303 link->smps_mode = IEEE80211_SMPS_OFF; 1304 1305 link->needed_rx_chains = sdata->local->rx_chains; 1306 1307 prev_beacon_int = link_conf->beacon_int; 1308 link_conf->beacon_int = params->beacon_interval; 1309 1310 if (params->ht_cap) 1311 link_conf->ht_ldpc = 1312 params->ht_cap->cap_info & 1313 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1314 1315 if (params->vht_cap) { 1316 link_conf->vht_ldpc = 1317 params->vht_cap->vht_cap_info & 1318 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1319 link_conf->vht_su_beamformer = 1320 params->vht_cap->vht_cap_info & 1321 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1322 link_conf->vht_su_beamformee = 1323 params->vht_cap->vht_cap_info & 1324 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1325 link_conf->vht_mu_beamformer = 1326 params->vht_cap->vht_cap_info & 1327 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1328 link_conf->vht_mu_beamformee = 1329 params->vht_cap->vht_cap_info & 1330 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1331 } 1332 1333 if (params->he_cap && params->he_oper) { 1334 link_conf->he_support = true; 1335 link_conf->htc_trig_based_pkt_ext = 1336 le32_get_bits(params->he_oper->he_oper_params, 1337 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1338 link_conf->frame_time_rts_th = 1339 le32_get_bits(params->he_oper->he_oper_params, 1340 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1341 changed |= BSS_CHANGED_HE_OBSS_PD; 1342 1343 if (params->beacon.he_bss_color.enabled) 1344 changed |= BSS_CHANGED_HE_BSS_COLOR; 1345 } 1346 1347 if (params->he_cap) { 1348 link_conf->he_ldpc = 1349 params->he_cap->phy_cap_info[1] & 1350 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1351 link_conf->he_su_beamformer = 1352 params->he_cap->phy_cap_info[3] & 1353 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1354 link_conf->he_su_beamformee = 1355 params->he_cap->phy_cap_info[4] & 1356 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1357 link_conf->he_mu_beamformer = 1358 params->he_cap->phy_cap_info[4] & 1359 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1360 link_conf->he_full_ul_mumimo = 1361 params->he_cap->phy_cap_info[2] & 1362 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1363 } 1364 1365 if (params->eht_cap) { 1366 if (!link_conf->he_support) 1367 return -EOPNOTSUPP; 1368 1369 link_conf->eht_support = true; 1370 1371 link_conf->eht_su_beamformer = 1372 params->eht_cap->fixed.phy_cap_info[0] & 1373 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1374 link_conf->eht_su_beamformee = 1375 params->eht_cap->fixed.phy_cap_info[0] & 1376 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1377 link_conf->eht_mu_beamformer = 1378 params->eht_cap->fixed.phy_cap_info[7] & 1379 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1380 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1381 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1382 } else { 1383 link_conf->eht_su_beamformer = false; 1384 link_conf->eht_su_beamformee = false; 1385 link_conf->eht_mu_beamformer = false; 1386 } 1387 1388 if (sdata->vif.type == NL80211_IFTYPE_AP && 1389 params->mbssid_config.tx_wdev) { 1390 err = ieee80211_set_ap_mbssid_options(sdata, 1391 params->mbssid_config, 1392 link_conf); 1393 if (err) 1394 return err; 1395 } 1396 1397 err = ieee80211_link_use_channel(link, &chanreq, 1398 IEEE80211_CHANCTX_SHARED); 1399 if (!err) 1400 ieee80211_link_copy_chanctx_to_vlans(link, false); 1401 if (err) { 1402 link_conf->beacon_int = prev_beacon_int; 1403 return err; 1404 } 1405 1406 /* 1407 * Apply control port protocol, this allows us to 1408 * not encrypt dynamic WEP control frames. 1409 */ 1410 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1411 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1412 sdata->control_port_over_nl80211 = 1413 params->crypto.control_port_over_nl80211; 1414 sdata->control_port_no_preauth = 1415 params->crypto.control_port_no_preauth; 1416 1417 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1418 vlan->control_port_protocol = 1419 params->crypto.control_port_ethertype; 1420 vlan->control_port_no_encrypt = 1421 params->crypto.control_port_no_encrypt; 1422 vlan->control_port_over_nl80211 = 1423 params->crypto.control_port_over_nl80211; 1424 vlan->control_port_no_preauth = 1425 params->crypto.control_port_no_preauth; 1426 } 1427 1428 link_conf->dtim_period = params->dtim_period; 1429 link_conf->enable_beacon = true; 1430 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1431 link_conf->twt_responder = params->twt_responder; 1432 link_conf->he_obss_pd = params->he_obss_pd; 1433 link_conf->he_bss_color = params->beacon.he_bss_color; 1434 sdata->vif.cfg.s1g = params->chandef.chan->band == 1435 NL80211_BAND_S1GHZ; 1436 1437 sdata->vif.cfg.ssid_len = params->ssid_len; 1438 if (params->ssid_len) 1439 memcpy(sdata->vif.cfg.ssid, params->ssid, 1440 params->ssid_len); 1441 link_conf->hidden_ssid = 1442 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1443 1444 memset(&link_conf->p2p_noa_attr, 0, 1445 sizeof(link_conf->p2p_noa_attr)); 1446 link_conf->p2p_noa_attr.oppps_ctwindow = 1447 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1448 if (params->p2p_opp_ps) 1449 link_conf->p2p_noa_attr.oppps_ctwindow |= 1450 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1451 1452 sdata->beacon_rate_set = false; 1453 if (wiphy_ext_feature_isset(local->hw.wiphy, 1454 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1455 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1456 sdata->beacon_rateidx_mask[i] = 1457 params->beacon_rate.control[i].legacy; 1458 if (sdata->beacon_rateidx_mask[i]) 1459 sdata->beacon_rate_set = true; 1460 } 1461 } 1462 1463 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1464 link_conf->beacon_tx_rate = params->beacon_rate; 1465 1466 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1467 &changed); 1468 if (err < 0) 1469 goto error; 1470 1471 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1472 link, link_conf, &changed); 1473 if (err < 0) 1474 goto error; 1475 1476 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1477 ¶ms->unsol_bcast_probe_resp, 1478 link, link_conf, &changed); 1479 if (err < 0) 1480 goto error; 1481 1482 err = drv_start_ap(sdata->local, sdata, link_conf); 1483 if (err) { 1484 old = sdata_dereference(link->u.ap.beacon, sdata); 1485 1486 if (old) 1487 kfree_rcu(old, rcu_head); 1488 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1489 sdata->u.ap.active = false; 1490 goto error; 1491 } 1492 1493 ieee80211_recalc_dtim(local, sdata); 1494 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1495 ieee80211_link_info_change_notify(sdata, link, changed); 1496 1497 if (ieee80211_num_beaconing_links(sdata) <= 1) 1498 netif_carrier_on(dev); 1499 1500 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1501 netif_carrier_on(vlan->dev); 1502 1503 return 0; 1504 1505 error: 1506 ieee80211_link_release_channel(link); 1507 1508 return err; 1509 } 1510 1511 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1512 struct cfg80211_ap_update *params) 1513 1514 { 1515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1516 struct ieee80211_link_data *link; 1517 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1518 struct beacon_data *old; 1519 int err; 1520 struct ieee80211_bss_conf *link_conf; 1521 u64 changed = 0; 1522 1523 lockdep_assert_wiphy(wiphy); 1524 1525 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1526 if (!link) 1527 return -ENOLINK; 1528 1529 link_conf = link->conf; 1530 1531 /* don't allow changing the beacon while a countdown is in place - offset 1532 * of channel switch counter may change 1533 */ 1534 if (link_conf->csa_active || link_conf->color_change_active) 1535 return -EBUSY; 1536 1537 old = sdata_dereference(link->u.ap.beacon, sdata); 1538 if (!old) 1539 return -ENOENT; 1540 1541 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1542 &changed); 1543 if (err < 0) 1544 return err; 1545 1546 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1547 link, link_conf, &changed); 1548 if (err < 0) 1549 return err; 1550 1551 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1552 ¶ms->unsol_bcast_probe_resp, 1553 link, link_conf, &changed); 1554 if (err < 0) 1555 return err; 1556 1557 if (beacon->he_bss_color_valid && 1558 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1559 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1560 changed |= BSS_CHANGED_HE_BSS_COLOR; 1561 } 1562 1563 ieee80211_link_info_change_notify(sdata, link, changed); 1564 return 0; 1565 } 1566 1567 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1568 { 1569 if (!link->u.ap.next_beacon) 1570 return; 1571 1572 kfree(link->u.ap.next_beacon->mbssid_ies); 1573 kfree(link->u.ap.next_beacon->rnr_ies); 1574 kfree(link->u.ap.next_beacon); 1575 link->u.ap.next_beacon = NULL; 1576 } 1577 1578 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1579 unsigned int link_id) 1580 { 1581 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1582 struct ieee80211_sub_if_data *vlan; 1583 struct ieee80211_local *local = sdata->local; 1584 struct beacon_data *old_beacon; 1585 struct probe_resp *old_probe_resp; 1586 struct fils_discovery_data *old_fils_discovery; 1587 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1588 struct cfg80211_chan_def chandef; 1589 struct ieee80211_link_data *link = 1590 sdata_dereference(sdata->link[link_id], sdata); 1591 struct ieee80211_bss_conf *link_conf = link->conf; 1592 LIST_HEAD(keys); 1593 1594 lockdep_assert_wiphy(local->hw.wiphy); 1595 1596 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1597 if (!old_beacon) 1598 return -ENOENT; 1599 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1600 sdata); 1601 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1602 sdata); 1603 old_unsol_bcast_probe_resp = 1604 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1605 sdata); 1606 1607 /* abort any running channel switch or color change */ 1608 link_conf->csa_active = false; 1609 link_conf->color_change_active = false; 1610 if (sdata->csa_blocked_tx) { 1611 ieee80211_wake_vif_queues(local, sdata, 1612 IEEE80211_QUEUE_STOP_REASON_CSA); 1613 sdata->csa_blocked_tx = false; 1614 } 1615 1616 ieee80211_free_next_beacon(link); 1617 1618 /* turn off carrier for this interface and dependent VLANs */ 1619 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1620 netif_carrier_off(vlan->dev); 1621 1622 if (ieee80211_num_beaconing_links(sdata) <= 1) 1623 netif_carrier_off(dev); 1624 1625 /* remove beacon and probe response */ 1626 sdata->u.ap.active = false; 1627 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1628 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1629 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1630 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1631 kfree_rcu(old_beacon, rcu_head); 1632 if (old_probe_resp) 1633 kfree_rcu(old_probe_resp, rcu_head); 1634 if (old_fils_discovery) 1635 kfree_rcu(old_fils_discovery, rcu_head); 1636 if (old_unsol_bcast_probe_resp) 1637 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1638 1639 kfree(link_conf->ftmr_params); 1640 link_conf->ftmr_params = NULL; 1641 1642 sdata->vif.mbssid_tx_vif = NULL; 1643 link_conf->bssid_index = 0; 1644 link_conf->nontransmitted = false; 1645 link_conf->ema_ap = false; 1646 link_conf->bssid_indicator = 0; 1647 1648 __sta_info_flush(sdata, true, link_id); 1649 1650 ieee80211_remove_link_keys(link, &keys); 1651 if (!list_empty(&keys)) { 1652 synchronize_net(); 1653 ieee80211_free_key_list(local, &keys); 1654 } 1655 1656 link_conf->enable_beacon = false; 1657 sdata->beacon_rate_set = false; 1658 sdata->vif.cfg.ssid_len = 0; 1659 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1660 ieee80211_link_info_change_notify(sdata, link, 1661 BSS_CHANGED_BEACON_ENABLED); 1662 1663 if (sdata->wdev.cac_started) { 1664 chandef = link_conf->chanreq.oper; 1665 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1666 cfg80211_cac_event(sdata->dev, &chandef, 1667 NL80211_RADAR_CAC_ABORTED, 1668 GFP_KERNEL); 1669 } 1670 1671 drv_stop_ap(sdata->local, sdata, link_conf); 1672 1673 /* free all potentially still buffered bcast frames */ 1674 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1675 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1676 1677 ieee80211_link_copy_chanctx_to_vlans(link, true); 1678 ieee80211_link_release_channel(link); 1679 1680 return 0; 1681 } 1682 1683 static int sta_apply_auth_flags(struct ieee80211_local *local, 1684 struct sta_info *sta, 1685 u32 mask, u32 set) 1686 { 1687 int ret; 1688 1689 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1690 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1691 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1692 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1693 if (ret) 1694 return ret; 1695 } 1696 1697 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1698 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1699 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1700 /* 1701 * When peer becomes associated, init rate control as 1702 * well. Some drivers require rate control initialized 1703 * before drv_sta_state() is called. 1704 */ 1705 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1706 rate_control_rate_init(sta); 1707 1708 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1709 if (ret) 1710 return ret; 1711 } 1712 1713 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1714 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1715 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1716 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1717 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1718 else 1719 ret = 0; 1720 if (ret) 1721 return ret; 1722 } 1723 1724 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1725 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1726 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1727 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1728 if (ret) 1729 return ret; 1730 } 1731 1732 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1733 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1734 test_sta_flag(sta, WLAN_STA_AUTH)) { 1735 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1736 if (ret) 1737 return ret; 1738 } 1739 1740 return 0; 1741 } 1742 1743 static void sta_apply_mesh_params(struct ieee80211_local *local, 1744 struct sta_info *sta, 1745 struct station_parameters *params) 1746 { 1747 #ifdef CONFIG_MAC80211_MESH 1748 struct ieee80211_sub_if_data *sdata = sta->sdata; 1749 u64 changed = 0; 1750 1751 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1752 switch (params->plink_state) { 1753 case NL80211_PLINK_ESTAB: 1754 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1755 changed = mesh_plink_inc_estab_count(sdata); 1756 sta->mesh->plink_state = params->plink_state; 1757 sta->mesh->aid = params->peer_aid; 1758 1759 ieee80211_mps_sta_status_update(sta); 1760 changed |= ieee80211_mps_set_sta_local_pm(sta, 1761 sdata->u.mesh.mshcfg.power_mode); 1762 1763 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1764 /* init at low value */ 1765 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1766 1767 break; 1768 case NL80211_PLINK_LISTEN: 1769 case NL80211_PLINK_BLOCKED: 1770 case NL80211_PLINK_OPN_SNT: 1771 case NL80211_PLINK_OPN_RCVD: 1772 case NL80211_PLINK_CNF_RCVD: 1773 case NL80211_PLINK_HOLDING: 1774 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1775 changed = mesh_plink_dec_estab_count(sdata); 1776 sta->mesh->plink_state = params->plink_state; 1777 1778 ieee80211_mps_sta_status_update(sta); 1779 changed |= ieee80211_mps_set_sta_local_pm(sta, 1780 NL80211_MESH_POWER_UNKNOWN); 1781 break; 1782 default: 1783 /* nothing */ 1784 break; 1785 } 1786 } 1787 1788 switch (params->plink_action) { 1789 case NL80211_PLINK_ACTION_NO_ACTION: 1790 /* nothing */ 1791 break; 1792 case NL80211_PLINK_ACTION_OPEN: 1793 changed |= mesh_plink_open(sta); 1794 break; 1795 case NL80211_PLINK_ACTION_BLOCK: 1796 changed |= mesh_plink_block(sta); 1797 break; 1798 } 1799 1800 if (params->local_pm) 1801 changed |= ieee80211_mps_set_sta_local_pm(sta, 1802 params->local_pm); 1803 1804 ieee80211_mbss_info_change_notify(sdata, changed); 1805 #endif 1806 } 1807 1808 static int sta_link_apply_parameters(struct ieee80211_local *local, 1809 struct sta_info *sta, bool new_link, 1810 struct link_station_parameters *params) 1811 { 1812 int ret = 0; 1813 struct ieee80211_supported_band *sband; 1814 struct ieee80211_sub_if_data *sdata = sta->sdata; 1815 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1816 struct ieee80211_link_data *link = 1817 sdata_dereference(sdata->link[link_id], sdata); 1818 struct link_sta_info *link_sta = 1819 rcu_dereference_protected(sta->link[link_id], 1820 lockdep_is_held(&local->hw.wiphy->mtx)); 1821 1822 /* 1823 * If there are no changes, then accept a link that exist, 1824 * unless it's a new link. 1825 */ 1826 if (params->link_id >= 0 && !new_link && 1827 !params->link_mac && !params->txpwr_set && 1828 !params->supported_rates_len && 1829 !params->ht_capa && !params->vht_capa && 1830 !params->he_capa && !params->eht_capa && 1831 !params->opmode_notif_used) 1832 return 0; 1833 1834 if (!link || !link_sta) 1835 return -EINVAL; 1836 1837 sband = ieee80211_get_link_sband(link); 1838 if (!sband) 1839 return -EINVAL; 1840 1841 if (params->link_mac) { 1842 if (new_link) { 1843 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1844 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1845 } else if (!ether_addr_equal(link_sta->addr, 1846 params->link_mac)) { 1847 return -EINVAL; 1848 } 1849 } else if (new_link) { 1850 return -EINVAL; 1851 } 1852 1853 if (params->txpwr_set) { 1854 link_sta->pub->txpwr.type = params->txpwr.type; 1855 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1856 link_sta->pub->txpwr.power = params->txpwr.power; 1857 ret = drv_sta_set_txpwr(local, sdata, sta); 1858 if (ret) 1859 return ret; 1860 } 1861 1862 if (params->supported_rates && 1863 params->supported_rates_len) { 1864 ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1865 sband, params->supported_rates, 1866 params->supported_rates_len, 1867 &link_sta->pub->supp_rates[sband->band]); 1868 } 1869 1870 if (params->ht_capa) 1871 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1872 params->ht_capa, link_sta); 1873 1874 /* VHT can override some HT caps such as the A-MSDU max length */ 1875 if (params->vht_capa) 1876 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1877 params->vht_capa, NULL, 1878 link_sta); 1879 1880 if (params->he_capa) 1881 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1882 (void *)params->he_capa, 1883 params->he_capa_len, 1884 (void *)params->he_6ghz_capa, 1885 link_sta); 1886 1887 if (params->he_capa && params->eht_capa) 1888 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1889 (u8 *)params->he_capa, 1890 params->he_capa_len, 1891 params->eht_capa, 1892 params->eht_capa_len, 1893 link_sta); 1894 1895 if (params->opmode_notif_used) { 1896 /* returned value is only needed for rc update, but the 1897 * rc isn't initialized here yet, so ignore it 1898 */ 1899 __ieee80211_vht_handle_opmode(sdata, link_sta, 1900 params->opmode_notif, 1901 sband->band); 1902 } 1903 1904 ieee80211_sta_init_nss(link_sta); 1905 1906 return ret; 1907 } 1908 1909 static int sta_apply_parameters(struct ieee80211_local *local, 1910 struct sta_info *sta, 1911 struct station_parameters *params) 1912 { 1913 struct ieee80211_sub_if_data *sdata = sta->sdata; 1914 u32 mask, set; 1915 int ret = 0; 1916 1917 mask = params->sta_flags_mask; 1918 set = params->sta_flags_set; 1919 1920 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1921 /* 1922 * In mesh mode, ASSOCIATED isn't part of the nl80211 1923 * API but must follow AUTHENTICATED for driver state. 1924 */ 1925 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1926 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1927 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1928 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1929 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1930 /* 1931 * TDLS -- everything follows authorized, but 1932 * only becoming authorized is possible, not 1933 * going back 1934 */ 1935 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1936 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1937 BIT(NL80211_STA_FLAG_ASSOCIATED); 1938 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1939 BIT(NL80211_STA_FLAG_ASSOCIATED); 1940 } 1941 } 1942 1943 if (mask & BIT(NL80211_STA_FLAG_WME) && 1944 local->hw.queues >= IEEE80211_NUM_ACS) 1945 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1946 1947 /* auth flags will be set later for TDLS, 1948 * and for unassociated stations that move to associated */ 1949 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1950 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1951 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1952 ret = sta_apply_auth_flags(local, sta, mask, set); 1953 if (ret) 1954 return ret; 1955 } 1956 1957 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1958 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1959 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1960 else 1961 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1962 } 1963 1964 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1965 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1966 if (set & BIT(NL80211_STA_FLAG_MFP)) 1967 set_sta_flag(sta, WLAN_STA_MFP); 1968 else 1969 clear_sta_flag(sta, WLAN_STA_MFP); 1970 } 1971 1972 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1973 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1974 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1975 else 1976 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1977 } 1978 1979 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 1980 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 1981 1982 /* mark TDLS channel switch support, if the AP allows it */ 1983 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1984 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1985 params->ext_capab_len >= 4 && 1986 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1987 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1988 1989 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1990 !sdata->u.mgd.tdls_wider_bw_prohibited && 1991 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1992 params->ext_capab_len >= 8 && 1993 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1994 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1995 1996 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1997 sta->sta.uapsd_queues = params->uapsd_queues; 1998 sta->sta.max_sp = params->max_sp; 1999 } 2000 2001 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2002 params->ext_capab_len); 2003 2004 /* 2005 * cfg80211 validates this (1-2007) and allows setting the AID 2006 * only when creating a new station entry 2007 */ 2008 if (params->aid) 2009 sta->sta.aid = params->aid; 2010 2011 /* 2012 * Some of the following updates would be racy if called on an 2013 * existing station, via ieee80211_change_station(). However, 2014 * all such changes are rejected by cfg80211 except for updates 2015 * changing the supported rates on an existing but not yet used 2016 * TDLS peer. 2017 */ 2018 2019 if (params->listen_interval >= 0) 2020 sta->listen_interval = params->listen_interval; 2021 2022 ret = sta_link_apply_parameters(local, sta, false, 2023 ¶ms->link_sta_params); 2024 if (ret) 2025 return ret; 2026 2027 if (params->support_p2p_ps >= 0) 2028 sta->sta.support_p2p_ps = params->support_p2p_ps; 2029 2030 if (ieee80211_vif_is_mesh(&sdata->vif)) 2031 sta_apply_mesh_params(local, sta, params); 2032 2033 if (params->airtime_weight) 2034 sta->airtime_weight = params->airtime_weight; 2035 2036 /* set the STA state after all sta info from usermode has been set */ 2037 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2038 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2039 ret = sta_apply_auth_flags(local, sta, mask, set); 2040 if (ret) 2041 return ret; 2042 } 2043 2044 /* Mark the STA as MLO if MLD MAC address is available */ 2045 if (params->link_sta_params.mld_mac) 2046 sta->sta.mlo = true; 2047 2048 return 0; 2049 } 2050 2051 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2052 const u8 *mac, 2053 struct station_parameters *params) 2054 { 2055 struct ieee80211_local *local = wiphy_priv(wiphy); 2056 struct sta_info *sta; 2057 struct ieee80211_sub_if_data *sdata; 2058 int err; 2059 2060 lockdep_assert_wiphy(local->hw.wiphy); 2061 2062 if (params->vlan) { 2063 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2064 2065 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2066 sdata->vif.type != NL80211_IFTYPE_AP) 2067 return -EINVAL; 2068 } else 2069 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2070 2071 if (ether_addr_equal(mac, sdata->vif.addr)) 2072 return -EINVAL; 2073 2074 if (!is_valid_ether_addr(mac)) 2075 return -EINVAL; 2076 2077 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2078 sdata->vif.type == NL80211_IFTYPE_STATION && 2079 !sdata->u.mgd.associated) 2080 return -EINVAL; 2081 2082 /* 2083 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2084 * but we need to have a link_mac in that case as well, so use the 2085 * STA's MAC address in that case. 2086 */ 2087 if (params->link_sta_params.link_id >= 0) 2088 sta = sta_info_alloc_with_link(sdata, mac, 2089 params->link_sta_params.link_id, 2090 params->link_sta_params.link_mac ?: mac, 2091 GFP_KERNEL); 2092 else 2093 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2094 2095 if (!sta) 2096 return -ENOMEM; 2097 2098 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2099 sta->sta.tdls = true; 2100 2101 /* Though the mutex is not needed here (since the station is not 2102 * visible yet), sta_apply_parameters (and inner functions) require 2103 * the mutex due to other paths. 2104 */ 2105 err = sta_apply_parameters(local, sta, params); 2106 if (err) { 2107 sta_info_free(local, sta); 2108 return err; 2109 } 2110 2111 /* 2112 * for TDLS and for unassociated station, rate control should be 2113 * initialized only when rates are known and station is marked 2114 * authorized/associated 2115 */ 2116 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2117 test_sta_flag(sta, WLAN_STA_ASSOC)) 2118 rate_control_rate_init(sta); 2119 2120 return sta_info_insert(sta); 2121 } 2122 2123 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2124 struct station_del_parameters *params) 2125 { 2126 struct ieee80211_sub_if_data *sdata; 2127 2128 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2129 2130 if (params->mac) 2131 return sta_info_destroy_addr_bss(sdata, params->mac); 2132 2133 sta_info_flush(sdata, params->link_id); 2134 return 0; 2135 } 2136 2137 static int ieee80211_change_station(struct wiphy *wiphy, 2138 struct net_device *dev, const u8 *mac, 2139 struct station_parameters *params) 2140 { 2141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2142 struct ieee80211_local *local = wiphy_priv(wiphy); 2143 struct sta_info *sta; 2144 struct ieee80211_sub_if_data *vlansdata; 2145 enum cfg80211_station_type statype; 2146 int err; 2147 2148 lockdep_assert_wiphy(local->hw.wiphy); 2149 2150 sta = sta_info_get_bss(sdata, mac); 2151 if (!sta) 2152 return -ENOENT; 2153 2154 switch (sdata->vif.type) { 2155 case NL80211_IFTYPE_MESH_POINT: 2156 if (sdata->u.mesh.user_mpm) 2157 statype = CFG80211_STA_MESH_PEER_USER; 2158 else 2159 statype = CFG80211_STA_MESH_PEER_KERNEL; 2160 break; 2161 case NL80211_IFTYPE_ADHOC: 2162 statype = CFG80211_STA_IBSS; 2163 break; 2164 case NL80211_IFTYPE_STATION: 2165 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2166 statype = CFG80211_STA_AP_STA; 2167 break; 2168 } 2169 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2170 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2171 else 2172 statype = CFG80211_STA_TDLS_PEER_SETUP; 2173 break; 2174 case NL80211_IFTYPE_AP: 2175 case NL80211_IFTYPE_AP_VLAN: 2176 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2177 statype = CFG80211_STA_AP_CLIENT; 2178 else 2179 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2180 break; 2181 default: 2182 return -EOPNOTSUPP; 2183 } 2184 2185 err = cfg80211_check_station_change(wiphy, params, statype); 2186 if (err) 2187 return err; 2188 2189 if (params->vlan && params->vlan != sta->sdata->dev) { 2190 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2191 2192 if (params->vlan->ieee80211_ptr->use_4addr) { 2193 if (vlansdata->u.vlan.sta) 2194 return -EBUSY; 2195 2196 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2197 __ieee80211_check_fast_rx_iface(vlansdata); 2198 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2199 } 2200 2201 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2202 sta->sdata->u.vlan.sta) { 2203 ieee80211_clear_fast_rx(sta); 2204 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2205 } 2206 2207 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2208 ieee80211_vif_dec_num_mcast(sta->sdata); 2209 2210 sta->sdata = vlansdata; 2211 ieee80211_check_fast_xmit(sta); 2212 2213 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2214 ieee80211_vif_inc_num_mcast(sta->sdata); 2215 cfg80211_send_layer2_update(sta->sdata->dev, 2216 sta->sta.addr); 2217 } 2218 } 2219 2220 err = sta_apply_parameters(local, sta, params); 2221 if (err) 2222 return err; 2223 2224 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2225 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2226 ieee80211_recalc_ps(local); 2227 ieee80211_recalc_ps_vif(sdata); 2228 } 2229 2230 return 0; 2231 } 2232 2233 #ifdef CONFIG_MAC80211_MESH 2234 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2235 const u8 *dst, const u8 *next_hop) 2236 { 2237 struct ieee80211_sub_if_data *sdata; 2238 struct mesh_path *mpath; 2239 struct sta_info *sta; 2240 2241 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2242 2243 rcu_read_lock(); 2244 sta = sta_info_get(sdata, next_hop); 2245 if (!sta) { 2246 rcu_read_unlock(); 2247 return -ENOENT; 2248 } 2249 2250 mpath = mesh_path_add(sdata, dst); 2251 if (IS_ERR(mpath)) { 2252 rcu_read_unlock(); 2253 return PTR_ERR(mpath); 2254 } 2255 2256 mesh_path_fix_nexthop(mpath, sta); 2257 2258 rcu_read_unlock(); 2259 return 0; 2260 } 2261 2262 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2263 const u8 *dst) 2264 { 2265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2266 2267 if (dst) 2268 return mesh_path_del(sdata, dst); 2269 2270 mesh_path_flush_by_iface(sdata); 2271 return 0; 2272 } 2273 2274 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2275 const u8 *dst, const u8 *next_hop) 2276 { 2277 struct ieee80211_sub_if_data *sdata; 2278 struct mesh_path *mpath; 2279 struct sta_info *sta; 2280 2281 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2282 2283 rcu_read_lock(); 2284 2285 sta = sta_info_get(sdata, next_hop); 2286 if (!sta) { 2287 rcu_read_unlock(); 2288 return -ENOENT; 2289 } 2290 2291 mpath = mesh_path_lookup(sdata, dst); 2292 if (!mpath) { 2293 rcu_read_unlock(); 2294 return -ENOENT; 2295 } 2296 2297 mesh_path_fix_nexthop(mpath, sta); 2298 2299 rcu_read_unlock(); 2300 return 0; 2301 } 2302 2303 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2304 struct mpath_info *pinfo) 2305 { 2306 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2307 2308 if (next_hop_sta) 2309 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2310 else 2311 eth_zero_addr(next_hop); 2312 2313 memset(pinfo, 0, sizeof(*pinfo)); 2314 2315 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2316 2317 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2318 MPATH_INFO_SN | 2319 MPATH_INFO_METRIC | 2320 MPATH_INFO_EXPTIME | 2321 MPATH_INFO_DISCOVERY_TIMEOUT | 2322 MPATH_INFO_DISCOVERY_RETRIES | 2323 MPATH_INFO_FLAGS | 2324 MPATH_INFO_HOP_COUNT | 2325 MPATH_INFO_PATH_CHANGE; 2326 2327 pinfo->frame_qlen = mpath->frame_queue.qlen; 2328 pinfo->sn = mpath->sn; 2329 pinfo->metric = mpath->metric; 2330 if (time_before(jiffies, mpath->exp_time)) 2331 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2332 pinfo->discovery_timeout = 2333 jiffies_to_msecs(mpath->discovery_timeout); 2334 pinfo->discovery_retries = mpath->discovery_retries; 2335 if (mpath->flags & MESH_PATH_ACTIVE) 2336 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2337 if (mpath->flags & MESH_PATH_RESOLVING) 2338 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2339 if (mpath->flags & MESH_PATH_SN_VALID) 2340 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2341 if (mpath->flags & MESH_PATH_FIXED) 2342 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2343 if (mpath->flags & MESH_PATH_RESOLVED) 2344 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2345 pinfo->hop_count = mpath->hop_count; 2346 pinfo->path_change_count = mpath->path_change_count; 2347 } 2348 2349 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2350 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2351 2352 { 2353 struct ieee80211_sub_if_data *sdata; 2354 struct mesh_path *mpath; 2355 2356 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2357 2358 rcu_read_lock(); 2359 mpath = mesh_path_lookup(sdata, dst); 2360 if (!mpath) { 2361 rcu_read_unlock(); 2362 return -ENOENT; 2363 } 2364 memcpy(dst, mpath->dst, ETH_ALEN); 2365 mpath_set_pinfo(mpath, next_hop, pinfo); 2366 rcu_read_unlock(); 2367 return 0; 2368 } 2369 2370 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2371 int idx, u8 *dst, u8 *next_hop, 2372 struct mpath_info *pinfo) 2373 { 2374 struct ieee80211_sub_if_data *sdata; 2375 struct mesh_path *mpath; 2376 2377 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2378 2379 rcu_read_lock(); 2380 mpath = mesh_path_lookup_by_idx(sdata, idx); 2381 if (!mpath) { 2382 rcu_read_unlock(); 2383 return -ENOENT; 2384 } 2385 memcpy(dst, mpath->dst, ETH_ALEN); 2386 mpath_set_pinfo(mpath, next_hop, pinfo); 2387 rcu_read_unlock(); 2388 return 0; 2389 } 2390 2391 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2392 struct mpath_info *pinfo) 2393 { 2394 memset(pinfo, 0, sizeof(*pinfo)); 2395 memcpy(mpp, mpath->mpp, ETH_ALEN); 2396 2397 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2398 } 2399 2400 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2401 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2402 2403 { 2404 struct ieee80211_sub_if_data *sdata; 2405 struct mesh_path *mpath; 2406 2407 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2408 2409 rcu_read_lock(); 2410 mpath = mpp_path_lookup(sdata, dst); 2411 if (!mpath) { 2412 rcu_read_unlock(); 2413 return -ENOENT; 2414 } 2415 memcpy(dst, mpath->dst, ETH_ALEN); 2416 mpp_set_pinfo(mpath, mpp, pinfo); 2417 rcu_read_unlock(); 2418 return 0; 2419 } 2420 2421 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2422 int idx, u8 *dst, u8 *mpp, 2423 struct mpath_info *pinfo) 2424 { 2425 struct ieee80211_sub_if_data *sdata; 2426 struct mesh_path *mpath; 2427 2428 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2429 2430 rcu_read_lock(); 2431 mpath = mpp_path_lookup_by_idx(sdata, idx); 2432 if (!mpath) { 2433 rcu_read_unlock(); 2434 return -ENOENT; 2435 } 2436 memcpy(dst, mpath->dst, ETH_ALEN); 2437 mpp_set_pinfo(mpath, mpp, pinfo); 2438 rcu_read_unlock(); 2439 return 0; 2440 } 2441 2442 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2443 struct net_device *dev, 2444 struct mesh_config *conf) 2445 { 2446 struct ieee80211_sub_if_data *sdata; 2447 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2448 2449 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2450 return 0; 2451 } 2452 2453 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2454 { 2455 return (mask >> (parm-1)) & 0x1; 2456 } 2457 2458 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2459 const struct mesh_setup *setup) 2460 { 2461 u8 *new_ie; 2462 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2463 struct ieee80211_sub_if_data, u.mesh); 2464 int i; 2465 2466 /* allocate information elements */ 2467 new_ie = NULL; 2468 2469 if (setup->ie_len) { 2470 new_ie = kmemdup(setup->ie, setup->ie_len, 2471 GFP_KERNEL); 2472 if (!new_ie) 2473 return -ENOMEM; 2474 } 2475 ifmsh->ie_len = setup->ie_len; 2476 ifmsh->ie = new_ie; 2477 2478 /* now copy the rest of the setup parameters */ 2479 ifmsh->mesh_id_len = setup->mesh_id_len; 2480 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2481 ifmsh->mesh_sp_id = setup->sync_method; 2482 ifmsh->mesh_pp_id = setup->path_sel_proto; 2483 ifmsh->mesh_pm_id = setup->path_metric; 2484 ifmsh->user_mpm = setup->user_mpm; 2485 ifmsh->mesh_auth_id = setup->auth_id; 2486 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2487 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2488 if (setup->is_authenticated) 2489 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2490 if (setup->is_secure) 2491 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2492 2493 /* mcast rate setting in Mesh Node */ 2494 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2495 sizeof(setup->mcast_rate)); 2496 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2497 2498 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2499 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2500 2501 sdata->beacon_rate_set = false; 2502 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2503 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2504 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2505 sdata->beacon_rateidx_mask[i] = 2506 setup->beacon_rate.control[i].legacy; 2507 if (sdata->beacon_rateidx_mask[i]) 2508 sdata->beacon_rate_set = true; 2509 } 2510 } 2511 2512 return 0; 2513 } 2514 2515 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2516 struct net_device *dev, u32 mask, 2517 const struct mesh_config *nconf) 2518 { 2519 struct mesh_config *conf; 2520 struct ieee80211_sub_if_data *sdata; 2521 struct ieee80211_if_mesh *ifmsh; 2522 2523 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2524 ifmsh = &sdata->u.mesh; 2525 2526 /* Set the config options which we are interested in setting */ 2527 conf = &(sdata->u.mesh.mshcfg); 2528 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2529 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2530 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2531 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2533 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2534 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2535 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2536 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2537 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2538 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2539 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2540 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2541 conf->element_ttl = nconf->element_ttl; 2542 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2543 if (ifmsh->user_mpm) 2544 return -EBUSY; 2545 conf->auto_open_plinks = nconf->auto_open_plinks; 2546 } 2547 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2548 conf->dot11MeshNbrOffsetMaxNeighbor = 2549 nconf->dot11MeshNbrOffsetMaxNeighbor; 2550 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2551 conf->dot11MeshHWMPmaxPREQretries = 2552 nconf->dot11MeshHWMPmaxPREQretries; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2554 conf->path_refresh_time = nconf->path_refresh_time; 2555 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2556 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2557 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2558 conf->dot11MeshHWMPactivePathTimeout = 2559 nconf->dot11MeshHWMPactivePathTimeout; 2560 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2561 conf->dot11MeshHWMPpreqMinInterval = 2562 nconf->dot11MeshHWMPpreqMinInterval; 2563 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2564 conf->dot11MeshHWMPperrMinInterval = 2565 nconf->dot11MeshHWMPperrMinInterval; 2566 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2567 mask)) 2568 conf->dot11MeshHWMPnetDiameterTraversalTime = 2569 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2570 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2571 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2572 ieee80211_mesh_root_setup(ifmsh); 2573 } 2574 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2575 /* our current gate announcement implementation rides on root 2576 * announcements, so require this ifmsh to also be a root node 2577 * */ 2578 if (nconf->dot11MeshGateAnnouncementProtocol && 2579 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2580 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2581 ieee80211_mesh_root_setup(ifmsh); 2582 } 2583 conf->dot11MeshGateAnnouncementProtocol = 2584 nconf->dot11MeshGateAnnouncementProtocol; 2585 } 2586 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2587 conf->dot11MeshHWMPRannInterval = 2588 nconf->dot11MeshHWMPRannInterval; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2590 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2591 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2592 /* our RSSI threshold implementation is supported only for 2593 * devices that report signal in dBm. 2594 */ 2595 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2596 return -EOPNOTSUPP; 2597 conf->rssi_threshold = nconf->rssi_threshold; 2598 } 2599 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2600 conf->ht_opmode = nconf->ht_opmode; 2601 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2602 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2603 BSS_CHANGED_HT); 2604 } 2605 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2606 conf->dot11MeshHWMPactivePathToRootTimeout = 2607 nconf->dot11MeshHWMPactivePathToRootTimeout; 2608 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2609 conf->dot11MeshHWMProotInterval = 2610 nconf->dot11MeshHWMProotInterval; 2611 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2612 conf->dot11MeshHWMPconfirmationInterval = 2613 nconf->dot11MeshHWMPconfirmationInterval; 2614 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2615 conf->power_mode = nconf->power_mode; 2616 ieee80211_mps_local_status_update(sdata); 2617 } 2618 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2619 conf->dot11MeshAwakeWindowDuration = 2620 nconf->dot11MeshAwakeWindowDuration; 2621 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2622 conf->plink_timeout = nconf->plink_timeout; 2623 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2624 conf->dot11MeshConnectedToMeshGate = 2625 nconf->dot11MeshConnectedToMeshGate; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2627 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2628 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2629 conf->dot11MeshConnectedToAuthServer = 2630 nconf->dot11MeshConnectedToAuthServer; 2631 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2632 return 0; 2633 } 2634 2635 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2636 const struct mesh_config *conf, 2637 const struct mesh_setup *setup) 2638 { 2639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2640 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2641 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2642 int err; 2643 2644 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2645 2646 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2647 err = copy_mesh_setup(ifmsh, setup); 2648 if (err) 2649 return err; 2650 2651 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2652 2653 /* can mesh use other SMPS modes? */ 2654 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2655 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2656 2657 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2658 IEEE80211_CHANCTX_SHARED); 2659 if (err) 2660 return err; 2661 2662 return ieee80211_start_mesh(sdata); 2663 } 2664 2665 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2666 { 2667 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2668 2669 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2670 2671 ieee80211_stop_mesh(sdata); 2672 ieee80211_link_release_channel(&sdata->deflink); 2673 kfree(sdata->u.mesh.ie); 2674 2675 return 0; 2676 } 2677 #endif 2678 2679 static int ieee80211_change_bss(struct wiphy *wiphy, 2680 struct net_device *dev, 2681 struct bss_parameters *params) 2682 { 2683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2684 struct ieee80211_link_data *link; 2685 struct ieee80211_supported_band *sband; 2686 u64 changed = 0; 2687 2688 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2689 if (IS_ERR(link)) 2690 return PTR_ERR(link); 2691 2692 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2693 return -ENOENT; 2694 2695 sband = ieee80211_get_link_sband(link); 2696 if (!sband) 2697 return -EINVAL; 2698 2699 if (params->basic_rates) { 2700 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2701 wiphy->bands[sband->band], 2702 params->basic_rates, 2703 params->basic_rates_len, 2704 &link->conf->basic_rates)) 2705 return -EINVAL; 2706 changed |= BSS_CHANGED_BASIC_RATES; 2707 ieee80211_check_rate_mask(link); 2708 } 2709 2710 if (params->use_cts_prot >= 0) { 2711 link->conf->use_cts_prot = params->use_cts_prot; 2712 changed |= BSS_CHANGED_ERP_CTS_PROT; 2713 } 2714 if (params->use_short_preamble >= 0) { 2715 link->conf->use_short_preamble = params->use_short_preamble; 2716 changed |= BSS_CHANGED_ERP_PREAMBLE; 2717 } 2718 2719 if (!link->conf->use_short_slot && 2720 (sband->band == NL80211_BAND_5GHZ || 2721 sband->band == NL80211_BAND_6GHZ)) { 2722 link->conf->use_short_slot = true; 2723 changed |= BSS_CHANGED_ERP_SLOT; 2724 } 2725 2726 if (params->use_short_slot_time >= 0) { 2727 link->conf->use_short_slot = params->use_short_slot_time; 2728 changed |= BSS_CHANGED_ERP_SLOT; 2729 } 2730 2731 if (params->ap_isolate >= 0) { 2732 if (params->ap_isolate) 2733 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2734 else 2735 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2736 ieee80211_check_fast_rx_iface(sdata); 2737 } 2738 2739 if (params->ht_opmode >= 0) { 2740 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2741 changed |= BSS_CHANGED_HT; 2742 } 2743 2744 if (params->p2p_ctwindow >= 0) { 2745 link->conf->p2p_noa_attr.oppps_ctwindow &= 2746 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2747 link->conf->p2p_noa_attr.oppps_ctwindow |= 2748 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2749 changed |= BSS_CHANGED_P2P_PS; 2750 } 2751 2752 if (params->p2p_opp_ps > 0) { 2753 link->conf->p2p_noa_attr.oppps_ctwindow |= 2754 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2755 changed |= BSS_CHANGED_P2P_PS; 2756 } else if (params->p2p_opp_ps == 0) { 2757 link->conf->p2p_noa_attr.oppps_ctwindow &= 2758 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2759 changed |= BSS_CHANGED_P2P_PS; 2760 } 2761 2762 ieee80211_link_info_change_notify(sdata, link, changed); 2763 2764 return 0; 2765 } 2766 2767 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2768 struct net_device *dev, 2769 struct ieee80211_txq_params *params) 2770 { 2771 struct ieee80211_local *local = wiphy_priv(wiphy); 2772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2773 struct ieee80211_link_data *link = 2774 ieee80211_link_or_deflink(sdata, params->link_id, true); 2775 struct ieee80211_tx_queue_params p; 2776 2777 if (!local->ops->conf_tx) 2778 return -EOPNOTSUPP; 2779 2780 if (local->hw.queues < IEEE80211_NUM_ACS) 2781 return -EOPNOTSUPP; 2782 2783 if (IS_ERR(link)) 2784 return PTR_ERR(link); 2785 2786 memset(&p, 0, sizeof(p)); 2787 p.aifs = params->aifs; 2788 p.cw_max = params->cwmax; 2789 p.cw_min = params->cwmin; 2790 p.txop = params->txop; 2791 2792 /* 2793 * Setting tx queue params disables u-apsd because it's only 2794 * called in master mode. 2795 */ 2796 p.uapsd = false; 2797 2798 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2799 2800 link->tx_conf[params->ac] = p; 2801 if (drv_conf_tx(local, link, params->ac, &p)) { 2802 wiphy_debug(local->hw.wiphy, 2803 "failed to set TX queue parameters for AC %d\n", 2804 params->ac); 2805 return -EINVAL; 2806 } 2807 2808 ieee80211_link_info_change_notify(sdata, link, 2809 BSS_CHANGED_QOS); 2810 2811 return 0; 2812 } 2813 2814 #ifdef CONFIG_PM 2815 static int ieee80211_suspend(struct wiphy *wiphy, 2816 struct cfg80211_wowlan *wowlan) 2817 { 2818 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2819 } 2820 2821 static int ieee80211_resume(struct wiphy *wiphy) 2822 { 2823 return __ieee80211_resume(wiphy_priv(wiphy)); 2824 } 2825 #else 2826 #define ieee80211_suspend NULL 2827 #define ieee80211_resume NULL 2828 #endif 2829 2830 static int ieee80211_scan(struct wiphy *wiphy, 2831 struct cfg80211_scan_request *req) 2832 { 2833 struct ieee80211_sub_if_data *sdata; 2834 2835 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2836 2837 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2838 case NL80211_IFTYPE_STATION: 2839 case NL80211_IFTYPE_ADHOC: 2840 case NL80211_IFTYPE_MESH_POINT: 2841 case NL80211_IFTYPE_P2P_CLIENT: 2842 case NL80211_IFTYPE_P2P_DEVICE: 2843 break; 2844 case NL80211_IFTYPE_P2P_GO: 2845 if (sdata->local->ops->hw_scan) 2846 break; 2847 /* 2848 * FIXME: implement NoA while scanning in software, 2849 * for now fall through to allow scanning only when 2850 * beaconing hasn't been configured yet 2851 */ 2852 fallthrough; 2853 case NL80211_IFTYPE_AP: 2854 /* 2855 * If the scan has been forced (and the driver supports 2856 * forcing), don't care about being beaconing already. 2857 * This will create problems to the attached stations (e.g. all 2858 * the frames sent while scanning on other channel will be 2859 * lost) 2860 */ 2861 if (sdata->deflink.u.ap.beacon && 2862 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2863 !(req->flags & NL80211_SCAN_FLAG_AP))) 2864 return -EOPNOTSUPP; 2865 break; 2866 case NL80211_IFTYPE_NAN: 2867 default: 2868 return -EOPNOTSUPP; 2869 } 2870 2871 return ieee80211_request_scan(sdata, req); 2872 } 2873 2874 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2875 { 2876 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2877 } 2878 2879 static int 2880 ieee80211_sched_scan_start(struct wiphy *wiphy, 2881 struct net_device *dev, 2882 struct cfg80211_sched_scan_request *req) 2883 { 2884 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2885 2886 if (!sdata->local->ops->sched_scan_start) 2887 return -EOPNOTSUPP; 2888 2889 return ieee80211_request_sched_scan_start(sdata, req); 2890 } 2891 2892 static int 2893 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2894 u64 reqid) 2895 { 2896 struct ieee80211_local *local = wiphy_priv(wiphy); 2897 2898 if (!local->ops->sched_scan_stop) 2899 return -EOPNOTSUPP; 2900 2901 return ieee80211_request_sched_scan_stop(local); 2902 } 2903 2904 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2905 struct cfg80211_auth_request *req) 2906 { 2907 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2908 } 2909 2910 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2911 struct cfg80211_assoc_request *req) 2912 { 2913 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2914 } 2915 2916 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2917 struct cfg80211_deauth_request *req) 2918 { 2919 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2920 } 2921 2922 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2923 struct cfg80211_disassoc_request *req) 2924 { 2925 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2926 } 2927 2928 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2929 struct cfg80211_ibss_params *params) 2930 { 2931 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2932 } 2933 2934 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2935 { 2936 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2937 } 2938 2939 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2940 struct ocb_setup *setup) 2941 { 2942 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2943 } 2944 2945 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2946 { 2947 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2948 } 2949 2950 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2951 int rate[NUM_NL80211_BANDS]) 2952 { 2953 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2954 2955 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2956 sizeof(int) * NUM_NL80211_BANDS); 2957 2958 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2959 BSS_CHANGED_MCAST_RATE); 2960 2961 return 0; 2962 } 2963 2964 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2965 { 2966 struct ieee80211_local *local = wiphy_priv(wiphy); 2967 int err; 2968 2969 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2970 ieee80211_check_fast_xmit_all(local); 2971 2972 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2973 2974 if (err) { 2975 ieee80211_check_fast_xmit_all(local); 2976 return err; 2977 } 2978 } 2979 2980 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2981 (changed & WIPHY_PARAM_DYN_ACK)) { 2982 s16 coverage_class; 2983 2984 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2985 wiphy->coverage_class : -1; 2986 err = drv_set_coverage_class(local, coverage_class); 2987 2988 if (err) 2989 return err; 2990 } 2991 2992 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2993 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2994 2995 if (err) 2996 return err; 2997 } 2998 2999 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3000 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3001 return -EINVAL; 3002 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3003 } 3004 if (changed & WIPHY_PARAM_RETRY_LONG) { 3005 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3006 return -EINVAL; 3007 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3008 } 3009 if (changed & 3010 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3011 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3012 3013 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3014 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3015 WIPHY_PARAM_TXQ_QUANTUM)) 3016 ieee80211_txq_set_params(local); 3017 3018 return 0; 3019 } 3020 3021 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3022 struct wireless_dev *wdev, 3023 enum nl80211_tx_power_setting type, int mbm) 3024 { 3025 struct ieee80211_local *local = wiphy_priv(wiphy); 3026 struct ieee80211_sub_if_data *sdata; 3027 enum nl80211_tx_power_setting txp_type = type; 3028 bool update_txp_type = false; 3029 bool has_monitor = false; 3030 3031 lockdep_assert_wiphy(local->hw.wiphy); 3032 3033 if (wdev) { 3034 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3035 3036 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3037 sdata = wiphy_dereference(local->hw.wiphy, 3038 local->monitor_sdata); 3039 if (!sdata) 3040 return -EOPNOTSUPP; 3041 } 3042 3043 switch (type) { 3044 case NL80211_TX_POWER_AUTOMATIC: 3045 sdata->deflink.user_power_level = 3046 IEEE80211_UNSET_POWER_LEVEL; 3047 txp_type = NL80211_TX_POWER_LIMITED; 3048 break; 3049 case NL80211_TX_POWER_LIMITED: 3050 case NL80211_TX_POWER_FIXED: 3051 if (mbm < 0 || (mbm % 100)) 3052 return -EOPNOTSUPP; 3053 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3054 break; 3055 } 3056 3057 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3058 update_txp_type = true; 3059 sdata->vif.bss_conf.txpower_type = txp_type; 3060 } 3061 3062 ieee80211_recalc_txpower(sdata, update_txp_type); 3063 3064 return 0; 3065 } 3066 3067 switch (type) { 3068 case NL80211_TX_POWER_AUTOMATIC: 3069 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3070 txp_type = NL80211_TX_POWER_LIMITED; 3071 break; 3072 case NL80211_TX_POWER_LIMITED: 3073 case NL80211_TX_POWER_FIXED: 3074 if (mbm < 0 || (mbm % 100)) 3075 return -EOPNOTSUPP; 3076 local->user_power_level = MBM_TO_DBM(mbm); 3077 break; 3078 } 3079 3080 list_for_each_entry(sdata, &local->interfaces, list) { 3081 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3082 has_monitor = true; 3083 continue; 3084 } 3085 sdata->deflink.user_power_level = local->user_power_level; 3086 if (txp_type != sdata->vif.bss_conf.txpower_type) 3087 update_txp_type = true; 3088 sdata->vif.bss_conf.txpower_type = txp_type; 3089 } 3090 list_for_each_entry(sdata, &local->interfaces, list) { 3091 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3092 continue; 3093 ieee80211_recalc_txpower(sdata, update_txp_type); 3094 } 3095 3096 if (has_monitor) { 3097 sdata = wiphy_dereference(local->hw.wiphy, 3098 local->monitor_sdata); 3099 if (sdata) { 3100 sdata->deflink.user_power_level = local->user_power_level; 3101 if (txp_type != sdata->vif.bss_conf.txpower_type) 3102 update_txp_type = true; 3103 sdata->vif.bss_conf.txpower_type = txp_type; 3104 3105 ieee80211_recalc_txpower(sdata, update_txp_type); 3106 } 3107 } 3108 3109 return 0; 3110 } 3111 3112 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3113 struct wireless_dev *wdev, 3114 int *dbm) 3115 { 3116 struct ieee80211_local *local = wiphy_priv(wiphy); 3117 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3118 3119 if (local->ops->get_txpower) 3120 return drv_get_txpower(local, sdata, dbm); 3121 3122 if (local->emulate_chanctx) 3123 *dbm = local->hw.conf.power_level; 3124 else 3125 *dbm = sdata->vif.bss_conf.txpower; 3126 3127 /* INT_MIN indicates no power level was set yet */ 3128 if (*dbm == INT_MIN) 3129 return -EINVAL; 3130 3131 return 0; 3132 } 3133 3134 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3135 { 3136 struct ieee80211_local *local = wiphy_priv(wiphy); 3137 3138 drv_rfkill_poll(local); 3139 } 3140 3141 #ifdef CONFIG_NL80211_TESTMODE 3142 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3143 struct wireless_dev *wdev, 3144 void *data, int len) 3145 { 3146 struct ieee80211_local *local = wiphy_priv(wiphy); 3147 struct ieee80211_vif *vif = NULL; 3148 3149 if (!local->ops->testmode_cmd) 3150 return -EOPNOTSUPP; 3151 3152 if (wdev) { 3153 struct ieee80211_sub_if_data *sdata; 3154 3155 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3156 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3157 vif = &sdata->vif; 3158 } 3159 3160 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3161 } 3162 3163 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3164 struct sk_buff *skb, 3165 struct netlink_callback *cb, 3166 void *data, int len) 3167 { 3168 struct ieee80211_local *local = wiphy_priv(wiphy); 3169 3170 if (!local->ops->testmode_dump) 3171 return -EOPNOTSUPP; 3172 3173 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3174 } 3175 #endif 3176 3177 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3178 struct ieee80211_link_data *link, 3179 enum ieee80211_smps_mode smps_mode) 3180 { 3181 const u8 *ap; 3182 enum ieee80211_smps_mode old_req; 3183 int err; 3184 struct sta_info *sta; 3185 bool tdls_peer_found = false; 3186 3187 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3188 3189 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3190 return -EINVAL; 3191 3192 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3193 return 0; 3194 3195 old_req = link->u.mgd.req_smps; 3196 link->u.mgd.req_smps = smps_mode; 3197 3198 /* The driver indicated that EML is enabled for the interface, which 3199 * implies that SMPS flows towards the AP should be stopped. 3200 */ 3201 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3202 return 0; 3203 3204 if (old_req == smps_mode && 3205 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3206 return 0; 3207 3208 /* 3209 * If not associated, or current association is not an HT 3210 * association, there's no need to do anything, just store 3211 * the new value until we associate. 3212 */ 3213 if (!sdata->u.mgd.associated || 3214 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3215 return 0; 3216 3217 ap = sdata->vif.cfg.ap_addr; 3218 3219 rcu_read_lock(); 3220 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3221 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3222 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3223 continue; 3224 3225 tdls_peer_found = true; 3226 break; 3227 } 3228 rcu_read_unlock(); 3229 3230 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3231 if (tdls_peer_found || !sdata->u.mgd.powersave) 3232 smps_mode = IEEE80211_SMPS_OFF; 3233 else 3234 smps_mode = IEEE80211_SMPS_DYNAMIC; 3235 } 3236 3237 /* send SM PS frame to AP */ 3238 err = ieee80211_send_smps_action(sdata, smps_mode, 3239 ap, ap, 3240 ieee80211_vif_is_mld(&sdata->vif) ? 3241 link->link_id : -1); 3242 if (err) 3243 link->u.mgd.req_smps = old_req; 3244 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3245 ieee80211_teardown_tdls_peers(link); 3246 3247 return err; 3248 } 3249 3250 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3251 bool enabled, int timeout) 3252 { 3253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3254 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3255 unsigned int link_id; 3256 3257 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3258 return -EOPNOTSUPP; 3259 3260 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3261 return -EOPNOTSUPP; 3262 3263 if (enabled == sdata->u.mgd.powersave && 3264 timeout == local->dynamic_ps_forced_timeout) 3265 return 0; 3266 3267 sdata->u.mgd.powersave = enabled; 3268 local->dynamic_ps_forced_timeout = timeout; 3269 3270 /* no change, but if automatic follow powersave */ 3271 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3272 struct ieee80211_link_data *link; 3273 3274 link = sdata_dereference(sdata->link[link_id], sdata); 3275 3276 if (!link) 3277 continue; 3278 __ieee80211_request_smps_mgd(sdata, link, 3279 link->u.mgd.req_smps); 3280 } 3281 3282 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3283 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3284 3285 ieee80211_recalc_ps(local); 3286 ieee80211_recalc_ps_vif(sdata); 3287 ieee80211_check_fast_rx_iface(sdata); 3288 3289 return 0; 3290 } 3291 3292 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3293 struct ieee80211_link_data *link, 3294 s32 rssi_thold, u32 rssi_hyst, 3295 s32 rssi_low, s32 rssi_high) 3296 { 3297 struct ieee80211_bss_conf *conf; 3298 3299 if (!link || !link->conf) 3300 return; 3301 3302 conf = link->conf; 3303 3304 if (rssi_thold && rssi_hyst && 3305 rssi_thold == conf->cqm_rssi_thold && 3306 rssi_hyst == conf->cqm_rssi_hyst) 3307 return; 3308 3309 conf->cqm_rssi_thold = rssi_thold; 3310 conf->cqm_rssi_hyst = rssi_hyst; 3311 conf->cqm_rssi_low = rssi_low; 3312 conf->cqm_rssi_high = rssi_high; 3313 link->u.mgd.last_cqm_event_signal = 0; 3314 3315 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3316 return; 3317 3318 if (sdata->u.mgd.associated && 3319 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3320 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3321 } 3322 3323 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3324 struct net_device *dev, 3325 s32 rssi_thold, u32 rssi_hyst) 3326 { 3327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3328 struct ieee80211_vif *vif = &sdata->vif; 3329 int link_id; 3330 3331 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3332 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3333 return -EOPNOTSUPP; 3334 3335 /* For MLD, handle CQM change on all the active links */ 3336 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3337 struct ieee80211_link_data *link = 3338 sdata_dereference(sdata->link[link_id], sdata); 3339 3340 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3341 0, 0); 3342 } 3343 3344 return 0; 3345 } 3346 3347 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3348 struct net_device *dev, 3349 s32 rssi_low, s32 rssi_high) 3350 { 3351 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3352 struct ieee80211_vif *vif = &sdata->vif; 3353 int link_id; 3354 3355 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3356 return -EOPNOTSUPP; 3357 3358 /* For MLD, handle CQM change on all the active links */ 3359 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3360 struct ieee80211_link_data *link = 3361 sdata_dereference(sdata->link[link_id], sdata); 3362 3363 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3364 rssi_low, rssi_high); 3365 } 3366 3367 return 0; 3368 } 3369 3370 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3371 struct net_device *dev, 3372 unsigned int link_id, 3373 const u8 *addr, 3374 const struct cfg80211_bitrate_mask *mask) 3375 { 3376 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3377 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3378 int i, ret; 3379 3380 if (!ieee80211_sdata_running(sdata)) 3381 return -ENETDOWN; 3382 3383 /* 3384 * If active validate the setting and reject it if it doesn't leave 3385 * at least one basic rate usable, since we really have to be able 3386 * to send something, and if we're an AP we have to be able to do 3387 * so at a basic rate so that all clients can receive it. 3388 */ 3389 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3390 sdata->vif.bss_conf.chanreq.oper.chan) { 3391 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3392 enum nl80211_band band; 3393 3394 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3395 3396 if (!(mask->control[band].legacy & basic_rates)) 3397 return -EINVAL; 3398 } 3399 3400 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3401 ret = drv_set_bitrate_mask(local, sdata, mask); 3402 if (ret) 3403 return ret; 3404 } 3405 3406 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3407 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3408 int j; 3409 3410 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3411 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3412 sizeof(mask->control[i].ht_mcs)); 3413 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3414 mask->control[i].vht_mcs, 3415 sizeof(mask->control[i].vht_mcs)); 3416 3417 sdata->rc_has_mcs_mask[i] = false; 3418 sdata->rc_has_vht_mcs_mask[i] = false; 3419 if (!sband) 3420 continue; 3421 3422 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3423 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3424 sdata->rc_has_mcs_mask[i] = true; 3425 break; 3426 } 3427 } 3428 3429 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3430 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3431 sdata->rc_has_vht_mcs_mask[i] = true; 3432 break; 3433 } 3434 } 3435 } 3436 3437 return 0; 3438 } 3439 3440 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3441 struct net_device *dev, 3442 struct cfg80211_chan_def *chandef, 3443 u32 cac_time_ms) 3444 { 3445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3446 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3447 struct ieee80211_local *local = sdata->local; 3448 int err; 3449 3450 lockdep_assert_wiphy(local->hw.wiphy); 3451 3452 if (!list_empty(&local->roc_list) || local->scanning) { 3453 err = -EBUSY; 3454 goto out_unlock; 3455 } 3456 3457 /* whatever, but channel contexts should not complain about that one */ 3458 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3459 sdata->deflink.needed_rx_chains = local->rx_chains; 3460 3461 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 3462 IEEE80211_CHANCTX_SHARED); 3463 if (err) 3464 goto out_unlock; 3465 3466 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3467 msecs_to_jiffies(cac_time_ms)); 3468 3469 out_unlock: 3470 return err; 3471 } 3472 3473 static void ieee80211_end_cac(struct wiphy *wiphy, 3474 struct net_device *dev) 3475 { 3476 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3477 struct ieee80211_local *local = sdata->local; 3478 3479 lockdep_assert_wiphy(local->hw.wiphy); 3480 3481 list_for_each_entry(sdata, &local->interfaces, list) { 3482 /* it might be waiting for the local->mtx, but then 3483 * by the time it gets it, sdata->wdev.cac_started 3484 * will no longer be true 3485 */ 3486 wiphy_delayed_work_cancel(wiphy, 3487 &sdata->deflink.dfs_cac_timer_work); 3488 3489 if (sdata->wdev.cac_started) { 3490 ieee80211_link_release_channel(&sdata->deflink); 3491 sdata->wdev.cac_started = false; 3492 } 3493 } 3494 } 3495 3496 static struct cfg80211_beacon_data * 3497 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3498 { 3499 struct cfg80211_beacon_data *new_beacon; 3500 u8 *pos; 3501 int len; 3502 3503 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3504 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3505 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3506 3507 if (beacon->mbssid_ies) 3508 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3509 beacon->rnr_ies, 3510 beacon->mbssid_ies->cnt); 3511 3512 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3513 if (!new_beacon) 3514 return NULL; 3515 3516 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3517 new_beacon->mbssid_ies = 3518 kzalloc(struct_size(new_beacon->mbssid_ies, 3519 elem, beacon->mbssid_ies->cnt), 3520 GFP_KERNEL); 3521 if (!new_beacon->mbssid_ies) { 3522 kfree(new_beacon); 3523 return NULL; 3524 } 3525 3526 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3527 new_beacon->rnr_ies = 3528 kzalloc(struct_size(new_beacon->rnr_ies, 3529 elem, beacon->rnr_ies->cnt), 3530 GFP_KERNEL); 3531 if (!new_beacon->rnr_ies) { 3532 kfree(new_beacon->mbssid_ies); 3533 kfree(new_beacon); 3534 return NULL; 3535 } 3536 } 3537 } 3538 3539 pos = (u8 *)(new_beacon + 1); 3540 if (beacon->head_len) { 3541 new_beacon->head_len = beacon->head_len; 3542 new_beacon->head = pos; 3543 memcpy(pos, beacon->head, beacon->head_len); 3544 pos += beacon->head_len; 3545 } 3546 if (beacon->tail_len) { 3547 new_beacon->tail_len = beacon->tail_len; 3548 new_beacon->tail = pos; 3549 memcpy(pos, beacon->tail, beacon->tail_len); 3550 pos += beacon->tail_len; 3551 } 3552 if (beacon->beacon_ies_len) { 3553 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3554 new_beacon->beacon_ies = pos; 3555 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3556 pos += beacon->beacon_ies_len; 3557 } 3558 if (beacon->proberesp_ies_len) { 3559 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3560 new_beacon->proberesp_ies = pos; 3561 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3562 pos += beacon->proberesp_ies_len; 3563 } 3564 if (beacon->assocresp_ies_len) { 3565 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3566 new_beacon->assocresp_ies = pos; 3567 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3568 pos += beacon->assocresp_ies_len; 3569 } 3570 if (beacon->probe_resp_len) { 3571 new_beacon->probe_resp_len = beacon->probe_resp_len; 3572 new_beacon->probe_resp = pos; 3573 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3574 pos += beacon->probe_resp_len; 3575 } 3576 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3577 pos += ieee80211_copy_mbssid_beacon(pos, 3578 new_beacon->mbssid_ies, 3579 beacon->mbssid_ies); 3580 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3581 pos += ieee80211_copy_rnr_beacon(pos, 3582 new_beacon->rnr_ies, 3583 beacon->rnr_ies); 3584 } 3585 3586 /* might copy -1, meaning no changes requested */ 3587 new_beacon->ftm_responder = beacon->ftm_responder; 3588 if (beacon->lci) { 3589 new_beacon->lci_len = beacon->lci_len; 3590 new_beacon->lci = pos; 3591 memcpy(pos, beacon->lci, beacon->lci_len); 3592 pos += beacon->lci_len; 3593 } 3594 if (beacon->civicloc) { 3595 new_beacon->civicloc_len = beacon->civicloc_len; 3596 new_beacon->civicloc = pos; 3597 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3598 pos += beacon->civicloc_len; 3599 } 3600 3601 return new_beacon; 3602 } 3603 3604 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3605 { 3606 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3607 struct ieee80211_local *local = sdata->local; 3608 struct ieee80211_link_data *link_data; 3609 3610 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3611 return; 3612 3613 rcu_read_lock(); 3614 3615 link_data = rcu_dereference(sdata->link[link_id]); 3616 if (WARN_ON(!link_data)) { 3617 rcu_read_unlock(); 3618 return; 3619 } 3620 3621 /* TODO: MBSSID with MLO changes */ 3622 if (vif->mbssid_tx_vif == vif) { 3623 /* Trigger ieee80211_csa_finish() on the non-transmitting 3624 * interfaces when channel switch is received on 3625 * transmitting interface 3626 */ 3627 struct ieee80211_sub_if_data *iter; 3628 3629 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3630 if (!ieee80211_sdata_running(iter)) 3631 continue; 3632 3633 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3634 continue; 3635 3636 wiphy_work_queue(iter->local->hw.wiphy, 3637 &iter->deflink.csa_finalize_work); 3638 } 3639 } 3640 wiphy_work_queue(local->hw.wiphy, &link_data->csa_finalize_work); 3641 3642 rcu_read_unlock(); 3643 } 3644 EXPORT_SYMBOL(ieee80211_csa_finish); 3645 3646 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3647 { 3648 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3649 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3650 struct ieee80211_local *local = sdata->local; 3651 3652 sdata->csa_blocked_tx = block_tx; 3653 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3654 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3655 } 3656 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3657 3658 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3659 u64 *changed) 3660 { 3661 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3662 int err; 3663 3664 switch (sdata->vif.type) { 3665 case NL80211_IFTYPE_AP: 3666 if (!link_data->u.ap.next_beacon) 3667 return -EINVAL; 3668 3669 err = ieee80211_assign_beacon(sdata, link_data, 3670 link_data->u.ap.next_beacon, 3671 NULL, NULL, changed); 3672 ieee80211_free_next_beacon(link_data); 3673 3674 if (err < 0) 3675 return err; 3676 break; 3677 case NL80211_IFTYPE_ADHOC: 3678 err = ieee80211_ibss_finish_csa(sdata, changed); 3679 if (err < 0) 3680 return err; 3681 break; 3682 #ifdef CONFIG_MAC80211_MESH 3683 case NL80211_IFTYPE_MESH_POINT: 3684 err = ieee80211_mesh_finish_csa(sdata, changed); 3685 if (err < 0) 3686 return err; 3687 break; 3688 #endif 3689 default: 3690 WARN_ON(1); 3691 return -EINVAL; 3692 } 3693 3694 return 0; 3695 } 3696 3697 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3698 { 3699 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3700 struct ieee80211_local *local = sdata->local; 3701 struct ieee80211_bss_conf *link_conf = link_data->conf; 3702 u64 changed = 0; 3703 int err; 3704 3705 lockdep_assert_wiphy(local->hw.wiphy); 3706 3707 /* 3708 * using reservation isn't immediate as it may be deferred until later 3709 * with multi-vif. once reservation is complete it will re-schedule the 3710 * work with no reserved_chanctx so verify chandef to check if it 3711 * completed successfully 3712 */ 3713 3714 if (link_data->reserved_chanctx) { 3715 /* 3716 * with multi-vif csa driver may call ieee80211_csa_finish() 3717 * many times while waiting for other interfaces to use their 3718 * reservations 3719 */ 3720 if (link_data->reserved_ready) 3721 return 0; 3722 3723 return ieee80211_link_use_reserved_context(link_data); 3724 } 3725 3726 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3727 &link_data->csa_chanreq.oper)) 3728 return -EINVAL; 3729 3730 link_conf->csa_active = false; 3731 3732 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3733 if (err) 3734 return err; 3735 3736 ieee80211_link_info_change_notify(sdata, link_data, changed); 3737 3738 if (sdata->csa_blocked_tx) { 3739 ieee80211_wake_vif_queues(local, sdata, 3740 IEEE80211_QUEUE_STOP_REASON_CSA); 3741 sdata->csa_blocked_tx = false; 3742 } 3743 3744 err = drv_post_channel_switch(link_data); 3745 if (err) 3746 return err; 3747 3748 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chanreq.oper, 3749 link_data->link_id); 3750 3751 return 0; 3752 } 3753 3754 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3755 { 3756 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3757 3758 if (__ieee80211_csa_finalize(link_data)) { 3759 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3760 link_data->link_id); 3761 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3762 GFP_KERNEL); 3763 } 3764 } 3765 3766 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3767 { 3768 struct ieee80211_link_data *link = 3769 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3770 struct ieee80211_sub_if_data *sdata = link->sdata; 3771 struct ieee80211_local *local = sdata->local; 3772 3773 lockdep_assert_wiphy(local->hw.wiphy); 3774 3775 /* AP might have been stopped while waiting for the lock. */ 3776 if (!link->conf->csa_active) 3777 return; 3778 3779 if (!ieee80211_sdata_running(sdata)) 3780 return; 3781 3782 ieee80211_csa_finalize(link); 3783 } 3784 3785 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3786 struct cfg80211_csa_settings *params, 3787 u64 *changed) 3788 { 3789 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3790 struct ieee80211_csa_settings csa = {}; 3791 int err; 3792 3793 switch (sdata->vif.type) { 3794 case NL80211_IFTYPE_AP: 3795 link_data->u.ap.next_beacon = 3796 cfg80211_beacon_dup(¶ms->beacon_after); 3797 if (!link_data->u.ap.next_beacon) 3798 return -ENOMEM; 3799 3800 /* 3801 * With a count of 0, we don't have to wait for any 3802 * TBTT before switching, so complete the CSA 3803 * immediately. In theory, with a count == 1 we 3804 * should delay the switch until just before the next 3805 * TBTT, but that would complicate things so we switch 3806 * immediately too. If we would delay the switch 3807 * until the next TBTT, we would have to set the probe 3808 * response here. 3809 * 3810 * TODO: A channel switch with count <= 1 without 3811 * sending a CSA action frame is kind of useless, 3812 * because the clients won't know we're changing 3813 * channels. The action frame must be implemented 3814 * either here or in the userspace. 3815 */ 3816 if (params->count <= 1) 3817 break; 3818 3819 if ((params->n_counter_offsets_beacon > 3820 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3821 (params->n_counter_offsets_presp > 3822 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3823 ieee80211_free_next_beacon(link_data); 3824 return -EINVAL; 3825 } 3826 3827 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3828 csa.counter_offsets_presp = params->counter_offsets_presp; 3829 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3830 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3831 csa.count = params->count; 3832 3833 err = ieee80211_assign_beacon(sdata, link_data, 3834 ¶ms->beacon_csa, &csa, 3835 NULL, changed); 3836 if (err < 0) { 3837 ieee80211_free_next_beacon(link_data); 3838 return err; 3839 } 3840 3841 break; 3842 case NL80211_IFTYPE_ADHOC: 3843 if (!sdata->vif.cfg.ibss_joined) 3844 return -EINVAL; 3845 3846 if (params->chandef.width != sdata->u.ibss.chandef.width) 3847 return -EINVAL; 3848 3849 switch (params->chandef.width) { 3850 case NL80211_CHAN_WIDTH_40: 3851 if (cfg80211_get_chandef_type(¶ms->chandef) != 3852 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3853 return -EINVAL; 3854 break; 3855 case NL80211_CHAN_WIDTH_5: 3856 case NL80211_CHAN_WIDTH_10: 3857 case NL80211_CHAN_WIDTH_20_NOHT: 3858 case NL80211_CHAN_WIDTH_20: 3859 break; 3860 default: 3861 return -EINVAL; 3862 } 3863 3864 /* changes into another band are not supported */ 3865 if (sdata->u.ibss.chandef.chan->band != 3866 params->chandef.chan->band) 3867 return -EINVAL; 3868 3869 /* see comments in the NL80211_IFTYPE_AP block */ 3870 if (params->count > 1) { 3871 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3872 if (err < 0) 3873 return err; 3874 } 3875 3876 ieee80211_send_action_csa(sdata, params); 3877 3878 break; 3879 #ifdef CONFIG_MAC80211_MESH 3880 case NL80211_IFTYPE_MESH_POINT: { 3881 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3882 3883 /* changes into another band are not supported */ 3884 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3885 params->chandef.chan->band) 3886 return -EINVAL; 3887 3888 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3889 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3890 if (!ifmsh->pre_value) 3891 ifmsh->pre_value = 1; 3892 else 3893 ifmsh->pre_value++; 3894 } 3895 3896 /* see comments in the NL80211_IFTYPE_AP block */ 3897 if (params->count > 1) { 3898 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3899 if (err < 0) { 3900 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3901 return err; 3902 } 3903 } 3904 3905 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3906 ieee80211_send_action_csa(sdata, params); 3907 3908 break; 3909 } 3910 #endif 3911 default: 3912 return -EOPNOTSUPP; 3913 } 3914 3915 return 0; 3916 } 3917 3918 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3919 { 3920 sdata->vif.bss_conf.color_change_active = false; 3921 3922 ieee80211_free_next_beacon(&sdata->deflink); 3923 3924 cfg80211_color_change_aborted_notify(sdata->dev); 3925 } 3926 3927 static int 3928 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3929 struct cfg80211_csa_settings *params) 3930 { 3931 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3932 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 3933 struct ieee80211_local *local = sdata->local; 3934 struct ieee80211_channel_switch ch_switch = { 3935 .link_id = params->link_id, 3936 }; 3937 struct ieee80211_chanctx_conf *conf; 3938 struct ieee80211_chanctx *chanctx; 3939 struct ieee80211_bss_conf *link_conf; 3940 struct ieee80211_link_data *link_data; 3941 u64 changed = 0; 3942 u8 link_id = params->link_id; 3943 int err; 3944 3945 lockdep_assert_wiphy(local->hw.wiphy); 3946 3947 if (!list_empty(&local->roc_list) || local->scanning) 3948 return -EBUSY; 3949 3950 if (sdata->wdev.cac_started) 3951 return -EBUSY; 3952 3953 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3954 return -EINVAL; 3955 3956 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3957 if (!link_data) 3958 return -ENOLINK; 3959 3960 link_conf = link_data->conf; 3961 3962 if (chanreq.oper.punctured && !link_conf->eht_support) 3963 return -EINVAL; 3964 3965 /* don't allow another channel switch if one is already active. */ 3966 if (link_conf->csa_active) 3967 return -EBUSY; 3968 3969 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 3970 if (!conf) { 3971 err = -EBUSY; 3972 goto out; 3973 } 3974 3975 if (params->chandef.chan->freq_offset) { 3976 /* this may work, but is untested */ 3977 err = -EOPNOTSUPP; 3978 goto out; 3979 } 3980 3981 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3982 3983 ch_switch.timestamp = 0; 3984 ch_switch.device_timestamp = 0; 3985 ch_switch.block_tx = params->block_tx; 3986 ch_switch.chandef = chanreq.oper; 3987 ch_switch.count = params->count; 3988 3989 err = drv_pre_channel_switch(sdata, &ch_switch); 3990 if (err) 3991 goto out; 3992 3993 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 3994 chanctx->mode, 3995 params->radar_required); 3996 if (err) 3997 goto out; 3998 3999 /* if reservation is invalid then this will fail */ 4000 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 4001 if (err) { 4002 ieee80211_link_unreserve_chanctx(link_data); 4003 goto out; 4004 } 4005 4006 /* if there is a color change in progress, abort it */ 4007 if (link_conf->color_change_active) 4008 ieee80211_color_change_abort(sdata); 4009 4010 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4011 if (err) { 4012 ieee80211_link_unreserve_chanctx(link_data); 4013 goto out; 4014 } 4015 4016 link_data->csa_chanreq = chanreq; 4017 link_conf->csa_active = true; 4018 4019 if (params->block_tx && 4020 !ieee80211_hw_check(&local->hw, HANDLES_QUIET_CSA)) { 4021 ieee80211_stop_vif_queues(local, sdata, 4022 IEEE80211_QUEUE_STOP_REASON_CSA); 4023 sdata->csa_blocked_tx = true; 4024 } 4025 4026 cfg80211_ch_switch_started_notify(sdata->dev, 4027 &link_data->csa_chanreq.oper, 0, 4028 params->count, params->block_tx); 4029 4030 if (changed) { 4031 ieee80211_link_info_change_notify(sdata, link_data, changed); 4032 drv_channel_switch_beacon(sdata, &link_data->csa_chanreq.oper); 4033 } else { 4034 /* if the beacon didn't change, we can finalize immediately */ 4035 ieee80211_csa_finalize(link_data); 4036 } 4037 4038 out: 4039 return err; 4040 } 4041 4042 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4043 struct cfg80211_csa_settings *params) 4044 { 4045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4046 struct ieee80211_local *local = sdata->local; 4047 4048 lockdep_assert_wiphy(local->hw.wiphy); 4049 4050 return __ieee80211_channel_switch(wiphy, dev, params); 4051 } 4052 4053 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4054 { 4055 lockdep_assert_wiphy(local->hw.wiphy); 4056 4057 local->roc_cookie_counter++; 4058 4059 /* wow, you wrapped 64 bits ... more likely a bug */ 4060 if (WARN_ON(local->roc_cookie_counter == 0)) 4061 local->roc_cookie_counter++; 4062 4063 return local->roc_cookie_counter; 4064 } 4065 4066 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4067 u64 *cookie, gfp_t gfp) 4068 { 4069 unsigned long spin_flags; 4070 struct sk_buff *ack_skb; 4071 int id; 4072 4073 ack_skb = skb_copy(skb, gfp); 4074 if (!ack_skb) 4075 return -ENOMEM; 4076 4077 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4078 id = idr_alloc(&local->ack_status_frames, ack_skb, 4079 1, 0x2000, GFP_ATOMIC); 4080 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4081 4082 if (id < 0) { 4083 kfree_skb(ack_skb); 4084 return -ENOMEM; 4085 } 4086 4087 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4088 IEEE80211_SKB_CB(skb)->status_data = id; 4089 4090 *cookie = ieee80211_mgmt_tx_cookie(local); 4091 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4092 4093 return 0; 4094 } 4095 4096 static void 4097 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4098 struct wireless_dev *wdev, 4099 struct mgmt_frame_regs *upd) 4100 { 4101 struct ieee80211_local *local = wiphy_priv(wiphy); 4102 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4103 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4104 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4105 bool global_change, intf_change; 4106 4107 global_change = 4108 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4109 (local->rx_mcast_action_reg != 4110 !!(upd->global_mcast_stypes & action_mask)); 4111 local->probe_req_reg = upd->global_stypes & preq_mask; 4112 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4113 4114 intf_change = (sdata->vif.probe_req_reg != 4115 !!(upd->interface_stypes & preq_mask)) || 4116 (sdata->vif.rx_mcast_action_reg != 4117 !!(upd->interface_mcast_stypes & action_mask)); 4118 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4119 sdata->vif.rx_mcast_action_reg = 4120 upd->interface_mcast_stypes & action_mask; 4121 4122 if (!local->open_count) 4123 return; 4124 4125 if (intf_change && ieee80211_sdata_running(sdata)) 4126 drv_config_iface_filter(local, sdata, 4127 sdata->vif.probe_req_reg ? 4128 FIF_PROBE_REQ : 0, 4129 FIF_PROBE_REQ); 4130 4131 if (global_change) 4132 ieee80211_configure_filter(local); 4133 } 4134 4135 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4136 { 4137 struct ieee80211_local *local = wiphy_priv(wiphy); 4138 int ret; 4139 4140 if (local->started) 4141 return -EOPNOTSUPP; 4142 4143 ret = drv_set_antenna(local, tx_ant, rx_ant); 4144 if (ret) 4145 return ret; 4146 4147 local->rx_chains = hweight8(rx_ant); 4148 return 0; 4149 } 4150 4151 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4152 { 4153 struct ieee80211_local *local = wiphy_priv(wiphy); 4154 4155 return drv_get_antenna(local, tx_ant, rx_ant); 4156 } 4157 4158 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4159 struct net_device *dev, 4160 struct cfg80211_gtk_rekey_data *data) 4161 { 4162 struct ieee80211_local *local = wiphy_priv(wiphy); 4163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4164 4165 if (!local->ops->set_rekey_data) 4166 return -EOPNOTSUPP; 4167 4168 drv_set_rekey_data(local, sdata, data); 4169 4170 return 0; 4171 } 4172 4173 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4174 const u8 *peer, u64 *cookie) 4175 { 4176 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4177 struct ieee80211_local *local = sdata->local; 4178 struct ieee80211_qos_hdr *nullfunc; 4179 struct sk_buff *skb; 4180 int size = sizeof(*nullfunc); 4181 __le16 fc; 4182 bool qos; 4183 struct ieee80211_tx_info *info; 4184 struct sta_info *sta; 4185 struct ieee80211_chanctx_conf *chanctx_conf; 4186 enum nl80211_band band; 4187 int ret; 4188 4189 /* the lock is needed to assign the cookie later */ 4190 lockdep_assert_wiphy(local->hw.wiphy); 4191 4192 rcu_read_lock(); 4193 sta = sta_info_get_bss(sdata, peer); 4194 if (!sta) { 4195 ret = -ENOLINK; 4196 goto unlock; 4197 } 4198 4199 qos = sta->sta.wme; 4200 4201 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4202 if (WARN_ON(!chanctx_conf)) { 4203 ret = -EINVAL; 4204 goto unlock; 4205 } 4206 band = chanctx_conf->def.chan->band; 4207 4208 if (qos) { 4209 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4210 IEEE80211_STYPE_QOS_NULLFUNC | 4211 IEEE80211_FCTL_FROMDS); 4212 } else { 4213 size -= 2; 4214 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4215 IEEE80211_STYPE_NULLFUNC | 4216 IEEE80211_FCTL_FROMDS); 4217 } 4218 4219 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4220 if (!skb) { 4221 ret = -ENOMEM; 4222 goto unlock; 4223 } 4224 4225 skb->dev = dev; 4226 4227 skb_reserve(skb, local->hw.extra_tx_headroom); 4228 4229 nullfunc = skb_put(skb, size); 4230 nullfunc->frame_control = fc; 4231 nullfunc->duration_id = 0; 4232 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4233 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4234 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4235 nullfunc->seq_ctrl = 0; 4236 4237 info = IEEE80211_SKB_CB(skb); 4238 4239 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4240 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4241 info->band = band; 4242 4243 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4244 skb->priority = 7; 4245 if (qos) 4246 nullfunc->qos_ctrl = cpu_to_le16(7); 4247 4248 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4249 if (ret) { 4250 kfree_skb(skb); 4251 goto unlock; 4252 } 4253 4254 local_bh_disable(); 4255 ieee80211_xmit(sdata, sta, skb); 4256 local_bh_enable(); 4257 4258 ret = 0; 4259 unlock: 4260 rcu_read_unlock(); 4261 4262 return ret; 4263 } 4264 4265 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4266 struct wireless_dev *wdev, 4267 unsigned int link_id, 4268 struct cfg80211_chan_def *chandef) 4269 { 4270 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4271 struct ieee80211_local *local = wiphy_priv(wiphy); 4272 struct ieee80211_chanctx_conf *chanctx_conf; 4273 struct ieee80211_link_data *link; 4274 int ret = -ENODATA; 4275 4276 rcu_read_lock(); 4277 link = rcu_dereference(sdata->link[link_id]); 4278 if (!link) { 4279 ret = -ENOLINK; 4280 goto out; 4281 } 4282 4283 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4284 if (chanctx_conf) { 4285 *chandef = link->conf->chanreq.oper; 4286 ret = 0; 4287 } else if (local->open_count > 0 && 4288 local->open_count == local->monitors && 4289 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4290 *chandef = local->monitor_chanreq.oper; 4291 ret = 0; 4292 } 4293 out: 4294 rcu_read_unlock(); 4295 4296 return ret; 4297 } 4298 4299 #ifdef CONFIG_PM 4300 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4301 { 4302 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4303 } 4304 #endif 4305 4306 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4307 struct net_device *dev, 4308 struct cfg80211_qos_map *qos_map) 4309 { 4310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4311 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4312 4313 if (qos_map) { 4314 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4315 if (!new_qos_map) 4316 return -ENOMEM; 4317 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4318 } else { 4319 /* A NULL qos_map was passed to disable QoS mapping */ 4320 new_qos_map = NULL; 4321 } 4322 4323 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4324 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4325 if (old_qos_map) 4326 kfree_rcu(old_qos_map, rcu_head); 4327 4328 return 0; 4329 } 4330 4331 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4332 struct net_device *dev, 4333 unsigned int link_id, 4334 struct cfg80211_chan_def *chandef) 4335 { 4336 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4337 struct ieee80211_link_data *link; 4338 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4339 int ret; 4340 u64 changed = 0; 4341 4342 link = sdata_dereference(sdata->link[link_id], sdata); 4343 4344 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4345 if (ret == 0) 4346 ieee80211_link_info_change_notify(sdata, link, changed); 4347 4348 return ret; 4349 } 4350 4351 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4352 u8 tsid, const u8 *peer, u8 up, 4353 u16 admitted_time) 4354 { 4355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4356 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4357 int ac = ieee802_1d_to_ac[up]; 4358 4359 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4360 return -EOPNOTSUPP; 4361 4362 if (!(sdata->wmm_acm & BIT(up))) 4363 return -EINVAL; 4364 4365 if (ifmgd->tx_tspec[ac].admitted_time) 4366 return -EBUSY; 4367 4368 if (admitted_time) { 4369 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4370 ifmgd->tx_tspec[ac].tsid = tsid; 4371 ifmgd->tx_tspec[ac].up = up; 4372 } 4373 4374 return 0; 4375 } 4376 4377 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4378 u8 tsid, const u8 *peer) 4379 { 4380 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4381 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4382 struct ieee80211_local *local = wiphy_priv(wiphy); 4383 int ac; 4384 4385 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4386 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4387 4388 /* skip unused entries */ 4389 if (!tx_tspec->admitted_time) 4390 continue; 4391 4392 if (tx_tspec->tsid != tsid) 4393 continue; 4394 4395 /* due to this new packets will be reassigned to non-ACM ACs */ 4396 tx_tspec->up = -1; 4397 4398 /* Make sure that all packets have been sent to avoid to 4399 * restore the QoS params on packets that are still on the 4400 * queues. 4401 */ 4402 synchronize_net(); 4403 ieee80211_flush_queues(local, sdata, false); 4404 4405 /* restore the normal QoS parameters 4406 * (unconditionally to avoid races) 4407 */ 4408 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4409 tx_tspec->downgraded = false; 4410 ieee80211_sta_handle_tspec_ac_params(sdata); 4411 4412 /* finally clear all the data */ 4413 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4414 4415 return 0; 4416 } 4417 4418 return -ENOENT; 4419 } 4420 4421 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4422 u8 inst_id, 4423 enum nl80211_nan_func_term_reason reason, 4424 gfp_t gfp) 4425 { 4426 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4427 struct cfg80211_nan_func *func; 4428 u64 cookie; 4429 4430 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4431 return; 4432 4433 spin_lock_bh(&sdata->u.nan.func_lock); 4434 4435 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4436 if (WARN_ON(!func)) { 4437 spin_unlock_bh(&sdata->u.nan.func_lock); 4438 return; 4439 } 4440 4441 cookie = func->cookie; 4442 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4443 4444 spin_unlock_bh(&sdata->u.nan.func_lock); 4445 4446 cfg80211_free_nan_func(func); 4447 4448 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4449 reason, cookie, gfp); 4450 } 4451 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4452 4453 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4454 struct cfg80211_nan_match_params *match, 4455 gfp_t gfp) 4456 { 4457 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4458 struct cfg80211_nan_func *func; 4459 4460 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4461 return; 4462 4463 spin_lock_bh(&sdata->u.nan.func_lock); 4464 4465 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4466 if (WARN_ON(!func)) { 4467 spin_unlock_bh(&sdata->u.nan.func_lock); 4468 return; 4469 } 4470 match->cookie = func->cookie; 4471 4472 spin_unlock_bh(&sdata->u.nan.func_lock); 4473 4474 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4475 } 4476 EXPORT_SYMBOL(ieee80211_nan_func_match); 4477 4478 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4479 struct net_device *dev, 4480 const bool enabled) 4481 { 4482 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4483 4484 sdata->u.ap.multicast_to_unicast = enabled; 4485 4486 return 0; 4487 } 4488 4489 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4490 struct txq_info *txqi) 4491 { 4492 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4493 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4494 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4495 } 4496 4497 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4498 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4499 txqstats->backlog_packets = txqi->tin.backlog_packets; 4500 } 4501 4502 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4503 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4504 txqstats->flows = txqi->tin.flows; 4505 } 4506 4507 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4508 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4509 txqstats->drops = txqi->cstats.drop_count; 4510 } 4511 4512 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4513 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4514 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4515 } 4516 4517 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4518 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4519 txqstats->overlimit = txqi->tin.overlimit; 4520 } 4521 4522 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4523 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4524 txqstats->collisions = txqi->tin.collisions; 4525 } 4526 4527 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4528 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4529 txqstats->tx_bytes = txqi->tin.tx_bytes; 4530 } 4531 4532 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4533 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4534 txqstats->tx_packets = txqi->tin.tx_packets; 4535 } 4536 } 4537 4538 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4539 struct wireless_dev *wdev, 4540 struct cfg80211_txq_stats *txqstats) 4541 { 4542 struct ieee80211_local *local = wiphy_priv(wiphy); 4543 struct ieee80211_sub_if_data *sdata; 4544 int ret = 0; 4545 4546 spin_lock_bh(&local->fq.lock); 4547 rcu_read_lock(); 4548 4549 if (wdev) { 4550 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4551 if (!sdata->vif.txq) { 4552 ret = 1; 4553 goto out; 4554 } 4555 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4556 } else { 4557 /* phy stats */ 4558 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4559 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4560 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4561 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4562 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4563 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4564 txqstats->backlog_packets = local->fq.backlog; 4565 txqstats->backlog_bytes = local->fq.memory_usage; 4566 txqstats->overlimit = local->fq.overlimit; 4567 txqstats->overmemory = local->fq.overmemory; 4568 txqstats->collisions = local->fq.collisions; 4569 txqstats->max_flows = local->fq.flows_cnt; 4570 } 4571 4572 out: 4573 rcu_read_unlock(); 4574 spin_unlock_bh(&local->fq.lock); 4575 4576 return ret; 4577 } 4578 4579 static int 4580 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4581 struct net_device *dev, 4582 struct cfg80211_ftm_responder_stats *ftm_stats) 4583 { 4584 struct ieee80211_local *local = wiphy_priv(wiphy); 4585 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4586 4587 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4588 } 4589 4590 static int 4591 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4592 struct cfg80211_pmsr_request *request) 4593 { 4594 struct ieee80211_local *local = wiphy_priv(wiphy); 4595 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4596 4597 return drv_start_pmsr(local, sdata, request); 4598 } 4599 4600 static void 4601 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4602 struct cfg80211_pmsr_request *request) 4603 { 4604 struct ieee80211_local *local = wiphy_priv(wiphy); 4605 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4606 4607 return drv_abort_pmsr(local, sdata, request); 4608 } 4609 4610 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4611 struct net_device *dev, 4612 struct cfg80211_tid_config *tid_conf) 4613 { 4614 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4615 struct sta_info *sta; 4616 4617 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4618 4619 if (!sdata->local->ops->set_tid_config) 4620 return -EOPNOTSUPP; 4621 4622 if (!tid_conf->peer) 4623 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4624 4625 sta = sta_info_get_bss(sdata, tid_conf->peer); 4626 if (!sta) 4627 return -ENOENT; 4628 4629 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4630 } 4631 4632 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4633 struct net_device *dev, 4634 const u8 *peer, u8 tids) 4635 { 4636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4637 struct sta_info *sta; 4638 4639 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4640 4641 if (!sdata->local->ops->reset_tid_config) 4642 return -EOPNOTSUPP; 4643 4644 if (!peer) 4645 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4646 4647 sta = sta_info_get_bss(sdata, peer); 4648 if (!sta) 4649 return -ENOENT; 4650 4651 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4652 } 4653 4654 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4655 struct cfg80211_sar_specs *sar) 4656 { 4657 struct ieee80211_local *local = wiphy_priv(wiphy); 4658 4659 if (!local->ops->set_sar_specs) 4660 return -EOPNOTSUPP; 4661 4662 return local->ops->set_sar_specs(&local->hw, sar); 4663 } 4664 4665 static int 4666 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4667 u64 *changed) 4668 { 4669 switch (sdata->vif.type) { 4670 case NL80211_IFTYPE_AP: { 4671 int ret; 4672 4673 if (!sdata->deflink.u.ap.next_beacon) 4674 return -EINVAL; 4675 4676 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4677 sdata->deflink.u.ap.next_beacon, 4678 NULL, NULL, changed); 4679 ieee80211_free_next_beacon(&sdata->deflink); 4680 4681 if (ret < 0) 4682 return ret; 4683 4684 break; 4685 } 4686 default: 4687 WARN_ON_ONCE(1); 4688 return -EINVAL; 4689 } 4690 4691 return 0; 4692 } 4693 4694 static int 4695 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4696 struct cfg80211_color_change_settings *params, 4697 u64 *changed) 4698 { 4699 struct ieee80211_color_change_settings color_change = {}; 4700 int err; 4701 4702 switch (sdata->vif.type) { 4703 case NL80211_IFTYPE_AP: 4704 sdata->deflink.u.ap.next_beacon = 4705 cfg80211_beacon_dup(¶ms->beacon_next); 4706 if (!sdata->deflink.u.ap.next_beacon) 4707 return -ENOMEM; 4708 4709 if (params->count <= 1) 4710 break; 4711 4712 color_change.counter_offset_beacon = 4713 params->counter_offset_beacon; 4714 color_change.counter_offset_presp = 4715 params->counter_offset_presp; 4716 color_change.count = params->count; 4717 4718 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4719 ¶ms->beacon_color_change, 4720 NULL, &color_change, changed); 4721 if (err < 0) { 4722 ieee80211_free_next_beacon(&sdata->deflink); 4723 return err; 4724 } 4725 break; 4726 default: 4727 return -EOPNOTSUPP; 4728 } 4729 4730 return 0; 4731 } 4732 4733 static void 4734 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4735 u8 color, int enable, u64 changed) 4736 { 4737 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4738 4739 sdata->vif.bss_conf.he_bss_color.color = color; 4740 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4741 changed |= BSS_CHANGED_HE_BSS_COLOR; 4742 4743 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4744 4745 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4746 struct ieee80211_sub_if_data *child; 4747 4748 list_for_each_entry(child, &sdata->local->interfaces, list) { 4749 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4750 child->vif.bss_conf.he_bss_color.color = color; 4751 child->vif.bss_conf.he_bss_color.enabled = enable; 4752 ieee80211_link_info_change_notify(child, 4753 &child->deflink, 4754 BSS_CHANGED_HE_BSS_COLOR); 4755 } 4756 } 4757 } 4758 } 4759 4760 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4761 { 4762 struct ieee80211_local *local = sdata->local; 4763 u64 changed = 0; 4764 int err; 4765 4766 lockdep_assert_wiphy(local->hw.wiphy); 4767 4768 sdata->vif.bss_conf.color_change_active = false; 4769 4770 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4771 if (err) { 4772 cfg80211_color_change_aborted_notify(sdata->dev); 4773 return err; 4774 } 4775 4776 ieee80211_color_change_bss_config_notify(sdata, 4777 sdata->vif.bss_conf.color_change_color, 4778 1, changed); 4779 cfg80211_color_change_notify(sdata->dev); 4780 4781 return 0; 4782 } 4783 4784 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4785 struct wiphy_work *work) 4786 { 4787 struct ieee80211_sub_if_data *sdata = 4788 container_of(work, struct ieee80211_sub_if_data, 4789 deflink.color_change_finalize_work); 4790 struct ieee80211_local *local = sdata->local; 4791 4792 lockdep_assert_wiphy(local->hw.wiphy); 4793 4794 /* AP might have been stopped while waiting for the lock. */ 4795 if (!sdata->vif.bss_conf.color_change_active) 4796 return; 4797 4798 if (!ieee80211_sdata_running(sdata)) 4799 return; 4800 4801 ieee80211_color_change_finalize(sdata); 4802 } 4803 4804 void ieee80211_color_collision_detection_work(struct work_struct *work) 4805 { 4806 struct delayed_work *delayed_work = to_delayed_work(work); 4807 struct ieee80211_link_data *link = 4808 container_of(delayed_work, struct ieee80211_link_data, 4809 color_collision_detect_work); 4810 struct ieee80211_sub_if_data *sdata = link->sdata; 4811 4812 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4813 } 4814 4815 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4816 { 4817 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4818 4819 wiphy_work_queue(sdata->local->hw.wiphy, 4820 &sdata->deflink.color_change_finalize_work); 4821 } 4822 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4823 4824 void 4825 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4826 u64 color_bitmap) 4827 { 4828 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4829 struct ieee80211_link_data *link = &sdata->deflink; 4830 4831 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4832 return; 4833 4834 if (delayed_work_pending(&link->color_collision_detect_work)) 4835 return; 4836 4837 link->color_bitmap = color_bitmap; 4838 /* queue the color collision detection event every 500 ms in order to 4839 * avoid sending too much netlink messages to userspace. 4840 */ 4841 ieee80211_queue_delayed_work(&sdata->local->hw, 4842 &link->color_collision_detect_work, 4843 msecs_to_jiffies(500)); 4844 } 4845 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4846 4847 static int 4848 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4849 struct cfg80211_color_change_settings *params) 4850 { 4851 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4852 struct ieee80211_local *local = sdata->local; 4853 u64 changed = 0; 4854 int err; 4855 4856 lockdep_assert_wiphy(local->hw.wiphy); 4857 4858 if (sdata->vif.bss_conf.nontransmitted) 4859 return -EINVAL; 4860 4861 /* don't allow another color change if one is already active or if csa 4862 * is active 4863 */ 4864 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4865 err = -EBUSY; 4866 goto out; 4867 } 4868 4869 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4870 if (err) 4871 goto out; 4872 4873 sdata->vif.bss_conf.color_change_active = true; 4874 sdata->vif.bss_conf.color_change_color = params->color; 4875 4876 cfg80211_color_change_started_notify(sdata->dev, params->count); 4877 4878 if (changed) 4879 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4880 else 4881 /* if the beacon didn't change, we can finalize immediately */ 4882 ieee80211_color_change_finalize(sdata); 4883 4884 out: 4885 4886 return err; 4887 } 4888 4889 static int 4890 ieee80211_set_radar_background(struct wiphy *wiphy, 4891 struct cfg80211_chan_def *chandef) 4892 { 4893 struct ieee80211_local *local = wiphy_priv(wiphy); 4894 4895 if (!local->ops->set_radar_background) 4896 return -EOPNOTSUPP; 4897 4898 return local->ops->set_radar_background(&local->hw, chandef); 4899 } 4900 4901 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4902 struct wireless_dev *wdev, 4903 unsigned int link_id) 4904 { 4905 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4906 4907 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4908 4909 if (wdev->use_4addr) 4910 return -EOPNOTSUPP; 4911 4912 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4913 } 4914 4915 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4916 struct wireless_dev *wdev, 4917 unsigned int link_id) 4918 { 4919 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4920 4921 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4922 4923 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4924 } 4925 4926 static int sta_add_link_station(struct ieee80211_local *local, 4927 struct ieee80211_sub_if_data *sdata, 4928 struct link_station_parameters *params) 4929 { 4930 struct sta_info *sta; 4931 int ret; 4932 4933 sta = sta_info_get_bss(sdata, params->mld_mac); 4934 if (!sta) 4935 return -ENOENT; 4936 4937 if (!sta->sta.valid_links) 4938 return -EINVAL; 4939 4940 if (sta->sta.valid_links & BIT(params->link_id)) 4941 return -EALREADY; 4942 4943 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4944 if (ret) 4945 return ret; 4946 4947 ret = sta_link_apply_parameters(local, sta, true, params); 4948 if (ret) { 4949 ieee80211_sta_free_link(sta, params->link_id); 4950 return ret; 4951 } 4952 4953 /* ieee80211_sta_activate_link frees the link upon failure */ 4954 return ieee80211_sta_activate_link(sta, params->link_id); 4955 } 4956 4957 static int 4958 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4959 struct link_station_parameters *params) 4960 { 4961 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4962 struct ieee80211_local *local = wiphy_priv(wiphy); 4963 4964 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4965 4966 return sta_add_link_station(local, sdata, params); 4967 } 4968 4969 static int sta_mod_link_station(struct ieee80211_local *local, 4970 struct ieee80211_sub_if_data *sdata, 4971 struct link_station_parameters *params) 4972 { 4973 struct sta_info *sta; 4974 4975 sta = sta_info_get_bss(sdata, params->mld_mac); 4976 if (!sta) 4977 return -ENOENT; 4978 4979 if (!(sta->sta.valid_links & BIT(params->link_id))) 4980 return -EINVAL; 4981 4982 return sta_link_apply_parameters(local, sta, false, params); 4983 } 4984 4985 static int 4986 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4987 struct link_station_parameters *params) 4988 { 4989 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4990 struct ieee80211_local *local = wiphy_priv(wiphy); 4991 4992 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4993 4994 return sta_mod_link_station(local, sdata, params); 4995 } 4996 4997 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4998 struct link_station_del_parameters *params) 4999 { 5000 struct sta_info *sta; 5001 5002 sta = sta_info_get_bss(sdata, params->mld_mac); 5003 if (!sta) 5004 return -ENOENT; 5005 5006 if (!(sta->sta.valid_links & BIT(params->link_id))) 5007 return -EINVAL; 5008 5009 /* must not create a STA without links */ 5010 if (sta->sta.valid_links == BIT(params->link_id)) 5011 return -EINVAL; 5012 5013 ieee80211_sta_remove_link(sta, params->link_id); 5014 5015 return 0; 5016 } 5017 5018 static int 5019 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5020 struct link_station_del_parameters *params) 5021 { 5022 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5023 5024 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5025 5026 return sta_del_link_station(sdata, params); 5027 } 5028 5029 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5030 struct net_device *dev, 5031 struct cfg80211_set_hw_timestamp *hwts) 5032 { 5033 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5034 struct ieee80211_local *local = sdata->local; 5035 5036 if (!local->ops->set_hw_timestamp) 5037 return -EOPNOTSUPP; 5038 5039 if (!check_sdata_in_driver(sdata)) 5040 return -EIO; 5041 5042 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5043 } 5044 5045 static int 5046 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5047 struct cfg80211_ttlm_params *params) 5048 { 5049 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5050 5051 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5052 5053 return ieee80211_req_neg_ttlm(sdata, params); 5054 } 5055 5056 const struct cfg80211_ops mac80211_config_ops = { 5057 .add_virtual_intf = ieee80211_add_iface, 5058 .del_virtual_intf = ieee80211_del_iface, 5059 .change_virtual_intf = ieee80211_change_iface, 5060 .start_p2p_device = ieee80211_start_p2p_device, 5061 .stop_p2p_device = ieee80211_stop_p2p_device, 5062 .add_key = ieee80211_add_key, 5063 .del_key = ieee80211_del_key, 5064 .get_key = ieee80211_get_key, 5065 .set_default_key = ieee80211_config_default_key, 5066 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5067 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5068 .start_ap = ieee80211_start_ap, 5069 .change_beacon = ieee80211_change_beacon, 5070 .stop_ap = ieee80211_stop_ap, 5071 .add_station = ieee80211_add_station, 5072 .del_station = ieee80211_del_station, 5073 .change_station = ieee80211_change_station, 5074 .get_station = ieee80211_get_station, 5075 .dump_station = ieee80211_dump_station, 5076 .dump_survey = ieee80211_dump_survey, 5077 #ifdef CONFIG_MAC80211_MESH 5078 .add_mpath = ieee80211_add_mpath, 5079 .del_mpath = ieee80211_del_mpath, 5080 .change_mpath = ieee80211_change_mpath, 5081 .get_mpath = ieee80211_get_mpath, 5082 .dump_mpath = ieee80211_dump_mpath, 5083 .get_mpp = ieee80211_get_mpp, 5084 .dump_mpp = ieee80211_dump_mpp, 5085 .update_mesh_config = ieee80211_update_mesh_config, 5086 .get_mesh_config = ieee80211_get_mesh_config, 5087 .join_mesh = ieee80211_join_mesh, 5088 .leave_mesh = ieee80211_leave_mesh, 5089 #endif 5090 .join_ocb = ieee80211_join_ocb, 5091 .leave_ocb = ieee80211_leave_ocb, 5092 .change_bss = ieee80211_change_bss, 5093 .inform_bss = ieee80211_inform_bss, 5094 .set_txq_params = ieee80211_set_txq_params, 5095 .set_monitor_channel = ieee80211_set_monitor_channel, 5096 .suspend = ieee80211_suspend, 5097 .resume = ieee80211_resume, 5098 .scan = ieee80211_scan, 5099 .abort_scan = ieee80211_abort_scan, 5100 .sched_scan_start = ieee80211_sched_scan_start, 5101 .sched_scan_stop = ieee80211_sched_scan_stop, 5102 .auth = ieee80211_auth, 5103 .assoc = ieee80211_assoc, 5104 .deauth = ieee80211_deauth, 5105 .disassoc = ieee80211_disassoc, 5106 .join_ibss = ieee80211_join_ibss, 5107 .leave_ibss = ieee80211_leave_ibss, 5108 .set_mcast_rate = ieee80211_set_mcast_rate, 5109 .set_wiphy_params = ieee80211_set_wiphy_params, 5110 .set_tx_power = ieee80211_set_tx_power, 5111 .get_tx_power = ieee80211_get_tx_power, 5112 .rfkill_poll = ieee80211_rfkill_poll, 5113 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5114 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5115 .set_power_mgmt = ieee80211_set_power_mgmt, 5116 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5117 .remain_on_channel = ieee80211_remain_on_channel, 5118 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5119 .mgmt_tx = ieee80211_mgmt_tx, 5120 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5121 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5122 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5123 .update_mgmt_frame_registrations = 5124 ieee80211_update_mgmt_frame_registrations, 5125 .set_antenna = ieee80211_set_antenna, 5126 .get_antenna = ieee80211_get_antenna, 5127 .set_rekey_data = ieee80211_set_rekey_data, 5128 .tdls_oper = ieee80211_tdls_oper, 5129 .tdls_mgmt = ieee80211_tdls_mgmt, 5130 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5131 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5132 .probe_client = ieee80211_probe_client, 5133 .set_noack_map = ieee80211_set_noack_map, 5134 #ifdef CONFIG_PM 5135 .set_wakeup = ieee80211_set_wakeup, 5136 #endif 5137 .get_channel = ieee80211_cfg_get_channel, 5138 .start_radar_detection = ieee80211_start_radar_detection, 5139 .end_cac = ieee80211_end_cac, 5140 .channel_switch = ieee80211_channel_switch, 5141 .set_qos_map = ieee80211_set_qos_map, 5142 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5143 .add_tx_ts = ieee80211_add_tx_ts, 5144 .del_tx_ts = ieee80211_del_tx_ts, 5145 .start_nan = ieee80211_start_nan, 5146 .stop_nan = ieee80211_stop_nan, 5147 .nan_change_conf = ieee80211_nan_change_conf, 5148 .add_nan_func = ieee80211_add_nan_func, 5149 .del_nan_func = ieee80211_del_nan_func, 5150 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5151 .tx_control_port = ieee80211_tx_control_port, 5152 .get_txq_stats = ieee80211_get_txq_stats, 5153 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5154 .start_pmsr = ieee80211_start_pmsr, 5155 .abort_pmsr = ieee80211_abort_pmsr, 5156 .probe_mesh_link = ieee80211_probe_mesh_link, 5157 .set_tid_config = ieee80211_set_tid_config, 5158 .reset_tid_config = ieee80211_reset_tid_config, 5159 .set_sar_specs = ieee80211_set_sar_specs, 5160 .color_change = ieee80211_color_change, 5161 .set_radar_background = ieee80211_set_radar_background, 5162 .add_intf_link = ieee80211_add_intf_link, 5163 .del_intf_link = ieee80211_del_intf_link, 5164 .add_link_station = ieee80211_add_link_station, 5165 .mod_link_station = ieee80211_mod_link_station, 5166 .del_link_station = ieee80211_del_link_station, 5167 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5168 .set_ttlm = ieee80211_set_ttlm, 5169 }; 5170