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 1490 if (ieee80211_num_beaconing_links(sdata) == 0) 1491 sdata->u.ap.active = false; 1492 1493 goto error; 1494 } 1495 1496 ieee80211_recalc_dtim(local, sdata); 1497 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1498 ieee80211_link_info_change_notify(sdata, link, changed); 1499 1500 if (ieee80211_num_beaconing_links(sdata) <= 1) 1501 netif_carrier_on(dev); 1502 1503 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1504 netif_carrier_on(vlan->dev); 1505 1506 return 0; 1507 1508 error: 1509 ieee80211_link_release_channel(link); 1510 1511 return err; 1512 } 1513 1514 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1515 struct cfg80211_ap_update *params) 1516 1517 { 1518 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1519 struct ieee80211_link_data *link; 1520 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1521 struct beacon_data *old; 1522 int err; 1523 struct ieee80211_bss_conf *link_conf; 1524 u64 changed = 0; 1525 1526 lockdep_assert_wiphy(wiphy); 1527 1528 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1529 if (!link) 1530 return -ENOLINK; 1531 1532 link_conf = link->conf; 1533 1534 /* don't allow changing the beacon while a countdown is in place - offset 1535 * of channel switch counter may change 1536 */ 1537 if (link_conf->csa_active || link_conf->color_change_active) 1538 return -EBUSY; 1539 1540 old = sdata_dereference(link->u.ap.beacon, sdata); 1541 if (!old) 1542 return -ENOENT; 1543 1544 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1545 &changed); 1546 if (err < 0) 1547 return err; 1548 1549 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1550 link, link_conf, &changed); 1551 if (err < 0) 1552 return err; 1553 1554 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1555 ¶ms->unsol_bcast_probe_resp, 1556 link, link_conf, &changed); 1557 if (err < 0) 1558 return err; 1559 1560 if (beacon->he_bss_color_valid && 1561 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1562 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1563 changed |= BSS_CHANGED_HE_BSS_COLOR; 1564 } 1565 1566 ieee80211_link_info_change_notify(sdata, link, changed); 1567 return 0; 1568 } 1569 1570 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1571 { 1572 if (!link->u.ap.next_beacon) 1573 return; 1574 1575 kfree(link->u.ap.next_beacon->mbssid_ies); 1576 kfree(link->u.ap.next_beacon->rnr_ies); 1577 kfree(link->u.ap.next_beacon); 1578 link->u.ap.next_beacon = NULL; 1579 } 1580 1581 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1582 unsigned int link_id) 1583 { 1584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1585 struct ieee80211_sub_if_data *vlan; 1586 struct ieee80211_local *local = sdata->local; 1587 struct beacon_data *old_beacon; 1588 struct probe_resp *old_probe_resp; 1589 struct fils_discovery_data *old_fils_discovery; 1590 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1591 struct cfg80211_chan_def chandef; 1592 struct ieee80211_link_data *link = 1593 sdata_dereference(sdata->link[link_id], sdata); 1594 struct ieee80211_bss_conf *link_conf = link->conf; 1595 LIST_HEAD(keys); 1596 1597 lockdep_assert_wiphy(local->hw.wiphy); 1598 1599 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1600 if (!old_beacon) 1601 return -ENOENT; 1602 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1603 sdata); 1604 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1605 sdata); 1606 old_unsol_bcast_probe_resp = 1607 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1608 sdata); 1609 1610 /* abort any running channel switch or color change */ 1611 link_conf->csa_active = false; 1612 link_conf->color_change_active = false; 1613 if (sdata->csa_blocked_queues) { 1614 ieee80211_wake_vif_queues(local, sdata, 1615 IEEE80211_QUEUE_STOP_REASON_CSA); 1616 sdata->csa_blocked_queues = false; 1617 } 1618 1619 ieee80211_free_next_beacon(link); 1620 1621 /* turn off carrier for this interface and dependent VLANs */ 1622 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1623 netif_carrier_off(vlan->dev); 1624 1625 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1626 netif_carrier_off(dev); 1627 sdata->u.ap.active = false; 1628 } 1629 1630 /* remove beacon and probe response */ 1631 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1632 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1633 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1634 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1635 kfree_rcu(old_beacon, rcu_head); 1636 if (old_probe_resp) 1637 kfree_rcu(old_probe_resp, rcu_head); 1638 if (old_fils_discovery) 1639 kfree_rcu(old_fils_discovery, rcu_head); 1640 if (old_unsol_bcast_probe_resp) 1641 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1642 1643 kfree(link_conf->ftmr_params); 1644 link_conf->ftmr_params = NULL; 1645 1646 sdata->vif.mbssid_tx_vif = NULL; 1647 link_conf->bssid_index = 0; 1648 link_conf->nontransmitted = false; 1649 link_conf->ema_ap = false; 1650 link_conf->bssid_indicator = 0; 1651 1652 __sta_info_flush(sdata, true, link_id); 1653 1654 ieee80211_remove_link_keys(link, &keys); 1655 if (!list_empty(&keys)) { 1656 synchronize_net(); 1657 ieee80211_free_key_list(local, &keys); 1658 } 1659 1660 link_conf->enable_beacon = false; 1661 sdata->beacon_rate_set = false; 1662 sdata->vif.cfg.ssid_len = 0; 1663 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1664 ieee80211_link_info_change_notify(sdata, link, 1665 BSS_CHANGED_BEACON_ENABLED); 1666 1667 if (sdata->wdev.cac_started) { 1668 chandef = link_conf->chanreq.oper; 1669 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1670 cfg80211_cac_event(sdata->dev, &chandef, 1671 NL80211_RADAR_CAC_ABORTED, 1672 GFP_KERNEL); 1673 } 1674 1675 drv_stop_ap(sdata->local, sdata, link_conf); 1676 1677 /* free all potentially still buffered bcast frames */ 1678 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1679 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1680 1681 ieee80211_link_copy_chanctx_to_vlans(link, true); 1682 ieee80211_link_release_channel(link); 1683 1684 return 0; 1685 } 1686 1687 static int sta_apply_auth_flags(struct ieee80211_local *local, 1688 struct sta_info *sta, 1689 u32 mask, u32 set) 1690 { 1691 int ret; 1692 1693 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1694 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1695 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1696 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1697 if (ret) 1698 return ret; 1699 } 1700 1701 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1702 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1703 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1704 /* 1705 * When peer becomes associated, init rate control as 1706 * well. Some drivers require rate control initialized 1707 * before drv_sta_state() is called. 1708 */ 1709 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1710 rate_control_rate_init(sta); 1711 1712 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1713 if (ret) 1714 return ret; 1715 } 1716 1717 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1718 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1719 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1720 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1721 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1722 else 1723 ret = 0; 1724 if (ret) 1725 return ret; 1726 } 1727 1728 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1729 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1730 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1731 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1732 if (ret) 1733 return ret; 1734 } 1735 1736 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1737 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1738 test_sta_flag(sta, WLAN_STA_AUTH)) { 1739 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1740 if (ret) 1741 return ret; 1742 } 1743 1744 return 0; 1745 } 1746 1747 static void sta_apply_mesh_params(struct ieee80211_local *local, 1748 struct sta_info *sta, 1749 struct station_parameters *params) 1750 { 1751 #ifdef CONFIG_MAC80211_MESH 1752 struct ieee80211_sub_if_data *sdata = sta->sdata; 1753 u64 changed = 0; 1754 1755 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1756 switch (params->plink_state) { 1757 case NL80211_PLINK_ESTAB: 1758 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1759 changed = mesh_plink_inc_estab_count(sdata); 1760 sta->mesh->plink_state = params->plink_state; 1761 sta->mesh->aid = params->peer_aid; 1762 1763 ieee80211_mps_sta_status_update(sta); 1764 changed |= ieee80211_mps_set_sta_local_pm(sta, 1765 sdata->u.mesh.mshcfg.power_mode); 1766 1767 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1768 /* init at low value */ 1769 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1770 1771 break; 1772 case NL80211_PLINK_LISTEN: 1773 case NL80211_PLINK_BLOCKED: 1774 case NL80211_PLINK_OPN_SNT: 1775 case NL80211_PLINK_OPN_RCVD: 1776 case NL80211_PLINK_CNF_RCVD: 1777 case NL80211_PLINK_HOLDING: 1778 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1779 changed = mesh_plink_dec_estab_count(sdata); 1780 sta->mesh->plink_state = params->plink_state; 1781 1782 ieee80211_mps_sta_status_update(sta); 1783 changed |= ieee80211_mps_set_sta_local_pm(sta, 1784 NL80211_MESH_POWER_UNKNOWN); 1785 break; 1786 default: 1787 /* nothing */ 1788 break; 1789 } 1790 } 1791 1792 switch (params->plink_action) { 1793 case NL80211_PLINK_ACTION_NO_ACTION: 1794 /* nothing */ 1795 break; 1796 case NL80211_PLINK_ACTION_OPEN: 1797 changed |= mesh_plink_open(sta); 1798 break; 1799 case NL80211_PLINK_ACTION_BLOCK: 1800 changed |= mesh_plink_block(sta); 1801 break; 1802 } 1803 1804 if (params->local_pm) 1805 changed |= ieee80211_mps_set_sta_local_pm(sta, 1806 params->local_pm); 1807 1808 ieee80211_mbss_info_change_notify(sdata, changed); 1809 #endif 1810 } 1811 1812 static int sta_link_apply_parameters(struct ieee80211_local *local, 1813 struct sta_info *sta, bool new_link, 1814 struct link_station_parameters *params) 1815 { 1816 int ret = 0; 1817 struct ieee80211_supported_band *sband; 1818 struct ieee80211_sub_if_data *sdata = sta->sdata; 1819 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1820 struct ieee80211_link_data *link = 1821 sdata_dereference(sdata->link[link_id], sdata); 1822 struct link_sta_info *link_sta = 1823 rcu_dereference_protected(sta->link[link_id], 1824 lockdep_is_held(&local->hw.wiphy->mtx)); 1825 1826 /* 1827 * If there are no changes, then accept a link that exist, 1828 * unless it's a new link. 1829 */ 1830 if (params->link_id >= 0 && !new_link && 1831 !params->link_mac && !params->txpwr_set && 1832 !params->supported_rates_len && 1833 !params->ht_capa && !params->vht_capa && 1834 !params->he_capa && !params->eht_capa && 1835 !params->opmode_notif_used) 1836 return 0; 1837 1838 if (!link || !link_sta) 1839 return -EINVAL; 1840 1841 sband = ieee80211_get_link_sband(link); 1842 if (!sband) 1843 return -EINVAL; 1844 1845 if (params->link_mac) { 1846 if (new_link) { 1847 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1848 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1849 } else if (!ether_addr_equal(link_sta->addr, 1850 params->link_mac)) { 1851 return -EINVAL; 1852 } 1853 } else if (new_link) { 1854 return -EINVAL; 1855 } 1856 1857 if (params->txpwr_set) { 1858 link_sta->pub->txpwr.type = params->txpwr.type; 1859 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1860 link_sta->pub->txpwr.power = params->txpwr.power; 1861 ret = drv_sta_set_txpwr(local, sdata, sta); 1862 if (ret) 1863 return ret; 1864 } 1865 1866 if (params->supported_rates && 1867 params->supported_rates_len) { 1868 ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1869 sband, params->supported_rates, 1870 params->supported_rates_len, 1871 &link_sta->pub->supp_rates[sband->band]); 1872 } 1873 1874 if (params->ht_capa) 1875 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1876 params->ht_capa, link_sta); 1877 1878 /* VHT can override some HT caps such as the A-MSDU max length */ 1879 if (params->vht_capa) 1880 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1881 params->vht_capa, NULL, 1882 link_sta); 1883 1884 if (params->he_capa) 1885 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1886 (void *)params->he_capa, 1887 params->he_capa_len, 1888 (void *)params->he_6ghz_capa, 1889 link_sta); 1890 1891 if (params->he_capa && params->eht_capa) 1892 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1893 (u8 *)params->he_capa, 1894 params->he_capa_len, 1895 params->eht_capa, 1896 params->eht_capa_len, 1897 link_sta); 1898 1899 if (params->opmode_notif_used) { 1900 /* returned value is only needed for rc update, but the 1901 * rc isn't initialized here yet, so ignore it 1902 */ 1903 __ieee80211_vht_handle_opmode(sdata, link_sta, 1904 params->opmode_notif, 1905 sband->band); 1906 } 1907 1908 ieee80211_sta_init_nss(link_sta); 1909 1910 return ret; 1911 } 1912 1913 static int sta_apply_parameters(struct ieee80211_local *local, 1914 struct sta_info *sta, 1915 struct station_parameters *params) 1916 { 1917 struct ieee80211_sub_if_data *sdata = sta->sdata; 1918 u32 mask, set; 1919 int ret = 0; 1920 1921 mask = params->sta_flags_mask; 1922 set = params->sta_flags_set; 1923 1924 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1925 /* 1926 * In mesh mode, ASSOCIATED isn't part of the nl80211 1927 * API but must follow AUTHENTICATED for driver state. 1928 */ 1929 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1930 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1931 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1932 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1933 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1934 /* 1935 * TDLS -- everything follows authorized, but 1936 * only becoming authorized is possible, not 1937 * going back 1938 */ 1939 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1940 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1941 BIT(NL80211_STA_FLAG_ASSOCIATED); 1942 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1943 BIT(NL80211_STA_FLAG_ASSOCIATED); 1944 } 1945 } 1946 1947 if (mask & BIT(NL80211_STA_FLAG_WME) && 1948 local->hw.queues >= IEEE80211_NUM_ACS) 1949 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1950 1951 /* auth flags will be set later for TDLS, 1952 * and for unassociated stations that move to associated */ 1953 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1954 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1955 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1956 ret = sta_apply_auth_flags(local, sta, mask, set); 1957 if (ret) 1958 return ret; 1959 } 1960 1961 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1962 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1963 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1964 else 1965 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1966 } 1967 1968 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1969 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1970 if (set & BIT(NL80211_STA_FLAG_MFP)) 1971 set_sta_flag(sta, WLAN_STA_MFP); 1972 else 1973 clear_sta_flag(sta, WLAN_STA_MFP); 1974 } 1975 1976 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1977 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1978 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1979 else 1980 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1981 } 1982 1983 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 1984 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 1985 1986 /* mark TDLS channel switch support, if the AP allows it */ 1987 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1988 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1989 params->ext_capab_len >= 4 && 1990 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1991 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1992 1993 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1994 !sdata->u.mgd.tdls_wider_bw_prohibited && 1995 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1996 params->ext_capab_len >= 8 && 1997 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1998 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1999 2000 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2001 sta->sta.uapsd_queues = params->uapsd_queues; 2002 sta->sta.max_sp = params->max_sp; 2003 } 2004 2005 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2006 params->ext_capab_len); 2007 2008 /* 2009 * cfg80211 validates this (1-2007) and allows setting the AID 2010 * only when creating a new station entry 2011 */ 2012 if (params->aid) 2013 sta->sta.aid = params->aid; 2014 2015 /* 2016 * Some of the following updates would be racy if called on an 2017 * existing station, via ieee80211_change_station(). However, 2018 * all such changes are rejected by cfg80211 except for updates 2019 * changing the supported rates on an existing but not yet used 2020 * TDLS peer. 2021 */ 2022 2023 if (params->listen_interval >= 0) 2024 sta->listen_interval = params->listen_interval; 2025 2026 ret = sta_link_apply_parameters(local, sta, false, 2027 ¶ms->link_sta_params); 2028 if (ret) 2029 return ret; 2030 2031 if (params->support_p2p_ps >= 0) 2032 sta->sta.support_p2p_ps = params->support_p2p_ps; 2033 2034 if (ieee80211_vif_is_mesh(&sdata->vif)) 2035 sta_apply_mesh_params(local, sta, params); 2036 2037 if (params->airtime_weight) 2038 sta->airtime_weight = params->airtime_weight; 2039 2040 /* set the STA state after all sta info from usermode has been set */ 2041 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2042 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2043 ret = sta_apply_auth_flags(local, sta, mask, set); 2044 if (ret) 2045 return ret; 2046 } 2047 2048 /* Mark the STA as MLO if MLD MAC address is available */ 2049 if (params->link_sta_params.mld_mac) 2050 sta->sta.mlo = true; 2051 2052 return 0; 2053 } 2054 2055 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2056 const u8 *mac, 2057 struct station_parameters *params) 2058 { 2059 struct ieee80211_local *local = wiphy_priv(wiphy); 2060 struct sta_info *sta; 2061 struct ieee80211_sub_if_data *sdata; 2062 int err; 2063 2064 lockdep_assert_wiphy(local->hw.wiphy); 2065 2066 if (params->vlan) { 2067 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2068 2069 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2070 sdata->vif.type != NL80211_IFTYPE_AP) 2071 return -EINVAL; 2072 } else 2073 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2074 2075 if (ether_addr_equal(mac, sdata->vif.addr)) 2076 return -EINVAL; 2077 2078 if (!is_valid_ether_addr(mac)) 2079 return -EINVAL; 2080 2081 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2082 sdata->vif.type == NL80211_IFTYPE_STATION && 2083 !sdata->u.mgd.associated) 2084 return -EINVAL; 2085 2086 /* 2087 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2088 * but we need to have a link_mac in that case as well, so use the 2089 * STA's MAC address in that case. 2090 */ 2091 if (params->link_sta_params.link_id >= 0) 2092 sta = sta_info_alloc_with_link(sdata, mac, 2093 params->link_sta_params.link_id, 2094 params->link_sta_params.link_mac ?: mac, 2095 GFP_KERNEL); 2096 else 2097 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2098 2099 if (!sta) 2100 return -ENOMEM; 2101 2102 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2103 sta->sta.tdls = true; 2104 2105 /* Though the mutex is not needed here (since the station is not 2106 * visible yet), sta_apply_parameters (and inner functions) require 2107 * the mutex due to other paths. 2108 */ 2109 err = sta_apply_parameters(local, sta, params); 2110 if (err) { 2111 sta_info_free(local, sta); 2112 return err; 2113 } 2114 2115 /* 2116 * for TDLS and for unassociated station, rate control should be 2117 * initialized only when rates are known and station is marked 2118 * authorized/associated 2119 */ 2120 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2121 test_sta_flag(sta, WLAN_STA_ASSOC)) 2122 rate_control_rate_init(sta); 2123 2124 return sta_info_insert(sta); 2125 } 2126 2127 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2128 struct station_del_parameters *params) 2129 { 2130 struct ieee80211_sub_if_data *sdata; 2131 2132 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2133 2134 if (params->mac) 2135 return sta_info_destroy_addr_bss(sdata, params->mac); 2136 2137 sta_info_flush(sdata, params->link_id); 2138 return 0; 2139 } 2140 2141 static int ieee80211_change_station(struct wiphy *wiphy, 2142 struct net_device *dev, const u8 *mac, 2143 struct station_parameters *params) 2144 { 2145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2146 struct ieee80211_local *local = wiphy_priv(wiphy); 2147 struct sta_info *sta; 2148 struct ieee80211_sub_if_data *vlansdata; 2149 enum cfg80211_station_type statype; 2150 int err; 2151 2152 lockdep_assert_wiphy(local->hw.wiphy); 2153 2154 sta = sta_info_get_bss(sdata, mac); 2155 if (!sta) 2156 return -ENOENT; 2157 2158 switch (sdata->vif.type) { 2159 case NL80211_IFTYPE_MESH_POINT: 2160 if (sdata->u.mesh.user_mpm) 2161 statype = CFG80211_STA_MESH_PEER_USER; 2162 else 2163 statype = CFG80211_STA_MESH_PEER_KERNEL; 2164 break; 2165 case NL80211_IFTYPE_ADHOC: 2166 statype = CFG80211_STA_IBSS; 2167 break; 2168 case NL80211_IFTYPE_STATION: 2169 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2170 statype = CFG80211_STA_AP_STA; 2171 break; 2172 } 2173 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2174 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2175 else 2176 statype = CFG80211_STA_TDLS_PEER_SETUP; 2177 break; 2178 case NL80211_IFTYPE_AP: 2179 case NL80211_IFTYPE_AP_VLAN: 2180 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2181 statype = CFG80211_STA_AP_CLIENT; 2182 else 2183 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2184 break; 2185 default: 2186 return -EOPNOTSUPP; 2187 } 2188 2189 err = cfg80211_check_station_change(wiphy, params, statype); 2190 if (err) 2191 return err; 2192 2193 if (params->vlan && params->vlan != sta->sdata->dev) { 2194 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2195 2196 if (params->vlan->ieee80211_ptr->use_4addr) { 2197 if (vlansdata->u.vlan.sta) 2198 return -EBUSY; 2199 2200 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2201 __ieee80211_check_fast_rx_iface(vlansdata); 2202 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2203 } 2204 2205 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2206 sta->sdata->u.vlan.sta) 2207 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2208 2209 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2210 ieee80211_vif_dec_num_mcast(sta->sdata); 2211 2212 sta->sdata = vlansdata; 2213 ieee80211_check_fast_rx(sta); 2214 ieee80211_check_fast_xmit(sta); 2215 2216 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2217 ieee80211_vif_inc_num_mcast(sta->sdata); 2218 cfg80211_send_layer2_update(sta->sdata->dev, 2219 sta->sta.addr); 2220 } 2221 } 2222 2223 err = sta_apply_parameters(local, sta, params); 2224 if (err) 2225 return err; 2226 2227 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2228 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2229 ieee80211_recalc_ps(local); 2230 ieee80211_recalc_ps_vif(sdata); 2231 } 2232 2233 return 0; 2234 } 2235 2236 #ifdef CONFIG_MAC80211_MESH 2237 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2238 const u8 *dst, const u8 *next_hop) 2239 { 2240 struct ieee80211_sub_if_data *sdata; 2241 struct mesh_path *mpath; 2242 struct sta_info *sta; 2243 2244 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2245 2246 rcu_read_lock(); 2247 sta = sta_info_get(sdata, next_hop); 2248 if (!sta) { 2249 rcu_read_unlock(); 2250 return -ENOENT; 2251 } 2252 2253 mpath = mesh_path_add(sdata, dst); 2254 if (IS_ERR(mpath)) { 2255 rcu_read_unlock(); 2256 return PTR_ERR(mpath); 2257 } 2258 2259 mesh_path_fix_nexthop(mpath, sta); 2260 2261 rcu_read_unlock(); 2262 return 0; 2263 } 2264 2265 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2266 const u8 *dst) 2267 { 2268 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2269 2270 if (dst) 2271 return mesh_path_del(sdata, dst); 2272 2273 mesh_path_flush_by_iface(sdata); 2274 return 0; 2275 } 2276 2277 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2278 const u8 *dst, const u8 *next_hop) 2279 { 2280 struct ieee80211_sub_if_data *sdata; 2281 struct mesh_path *mpath; 2282 struct sta_info *sta; 2283 2284 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2285 2286 rcu_read_lock(); 2287 2288 sta = sta_info_get(sdata, next_hop); 2289 if (!sta) { 2290 rcu_read_unlock(); 2291 return -ENOENT; 2292 } 2293 2294 mpath = mesh_path_lookup(sdata, dst); 2295 if (!mpath) { 2296 rcu_read_unlock(); 2297 return -ENOENT; 2298 } 2299 2300 mesh_path_fix_nexthop(mpath, sta); 2301 2302 rcu_read_unlock(); 2303 return 0; 2304 } 2305 2306 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2307 struct mpath_info *pinfo) 2308 { 2309 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2310 2311 if (next_hop_sta) 2312 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2313 else 2314 eth_zero_addr(next_hop); 2315 2316 memset(pinfo, 0, sizeof(*pinfo)); 2317 2318 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2319 2320 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2321 MPATH_INFO_SN | 2322 MPATH_INFO_METRIC | 2323 MPATH_INFO_EXPTIME | 2324 MPATH_INFO_DISCOVERY_TIMEOUT | 2325 MPATH_INFO_DISCOVERY_RETRIES | 2326 MPATH_INFO_FLAGS | 2327 MPATH_INFO_HOP_COUNT | 2328 MPATH_INFO_PATH_CHANGE; 2329 2330 pinfo->frame_qlen = mpath->frame_queue.qlen; 2331 pinfo->sn = mpath->sn; 2332 pinfo->metric = mpath->metric; 2333 if (time_before(jiffies, mpath->exp_time)) 2334 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2335 pinfo->discovery_timeout = 2336 jiffies_to_msecs(mpath->discovery_timeout); 2337 pinfo->discovery_retries = mpath->discovery_retries; 2338 if (mpath->flags & MESH_PATH_ACTIVE) 2339 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2340 if (mpath->flags & MESH_PATH_RESOLVING) 2341 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2342 if (mpath->flags & MESH_PATH_SN_VALID) 2343 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2344 if (mpath->flags & MESH_PATH_FIXED) 2345 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2346 if (mpath->flags & MESH_PATH_RESOLVED) 2347 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2348 pinfo->hop_count = mpath->hop_count; 2349 pinfo->path_change_count = mpath->path_change_count; 2350 } 2351 2352 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2353 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2354 2355 { 2356 struct ieee80211_sub_if_data *sdata; 2357 struct mesh_path *mpath; 2358 2359 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2360 2361 rcu_read_lock(); 2362 mpath = mesh_path_lookup(sdata, dst); 2363 if (!mpath) { 2364 rcu_read_unlock(); 2365 return -ENOENT; 2366 } 2367 memcpy(dst, mpath->dst, ETH_ALEN); 2368 mpath_set_pinfo(mpath, next_hop, pinfo); 2369 rcu_read_unlock(); 2370 return 0; 2371 } 2372 2373 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2374 int idx, u8 *dst, u8 *next_hop, 2375 struct mpath_info *pinfo) 2376 { 2377 struct ieee80211_sub_if_data *sdata; 2378 struct mesh_path *mpath; 2379 2380 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2381 2382 rcu_read_lock(); 2383 mpath = mesh_path_lookup_by_idx(sdata, idx); 2384 if (!mpath) { 2385 rcu_read_unlock(); 2386 return -ENOENT; 2387 } 2388 memcpy(dst, mpath->dst, ETH_ALEN); 2389 mpath_set_pinfo(mpath, next_hop, pinfo); 2390 rcu_read_unlock(); 2391 return 0; 2392 } 2393 2394 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2395 struct mpath_info *pinfo) 2396 { 2397 memset(pinfo, 0, sizeof(*pinfo)); 2398 memcpy(mpp, mpath->mpp, ETH_ALEN); 2399 2400 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2401 } 2402 2403 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2404 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2405 2406 { 2407 struct ieee80211_sub_if_data *sdata; 2408 struct mesh_path *mpath; 2409 2410 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2411 2412 rcu_read_lock(); 2413 mpath = mpp_path_lookup(sdata, dst); 2414 if (!mpath) { 2415 rcu_read_unlock(); 2416 return -ENOENT; 2417 } 2418 memcpy(dst, mpath->dst, ETH_ALEN); 2419 mpp_set_pinfo(mpath, mpp, pinfo); 2420 rcu_read_unlock(); 2421 return 0; 2422 } 2423 2424 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2425 int idx, u8 *dst, u8 *mpp, 2426 struct mpath_info *pinfo) 2427 { 2428 struct ieee80211_sub_if_data *sdata; 2429 struct mesh_path *mpath; 2430 2431 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2432 2433 rcu_read_lock(); 2434 mpath = mpp_path_lookup_by_idx(sdata, idx); 2435 if (!mpath) { 2436 rcu_read_unlock(); 2437 return -ENOENT; 2438 } 2439 memcpy(dst, mpath->dst, ETH_ALEN); 2440 mpp_set_pinfo(mpath, mpp, pinfo); 2441 rcu_read_unlock(); 2442 return 0; 2443 } 2444 2445 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2446 struct net_device *dev, 2447 struct mesh_config *conf) 2448 { 2449 struct ieee80211_sub_if_data *sdata; 2450 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2451 2452 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2453 return 0; 2454 } 2455 2456 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2457 { 2458 return (mask >> (parm-1)) & 0x1; 2459 } 2460 2461 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2462 const struct mesh_setup *setup) 2463 { 2464 u8 *new_ie; 2465 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2466 struct ieee80211_sub_if_data, u.mesh); 2467 int i; 2468 2469 /* allocate information elements */ 2470 new_ie = NULL; 2471 2472 if (setup->ie_len) { 2473 new_ie = kmemdup(setup->ie, setup->ie_len, 2474 GFP_KERNEL); 2475 if (!new_ie) 2476 return -ENOMEM; 2477 } 2478 ifmsh->ie_len = setup->ie_len; 2479 ifmsh->ie = new_ie; 2480 2481 /* now copy the rest of the setup parameters */ 2482 ifmsh->mesh_id_len = setup->mesh_id_len; 2483 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2484 ifmsh->mesh_sp_id = setup->sync_method; 2485 ifmsh->mesh_pp_id = setup->path_sel_proto; 2486 ifmsh->mesh_pm_id = setup->path_metric; 2487 ifmsh->user_mpm = setup->user_mpm; 2488 ifmsh->mesh_auth_id = setup->auth_id; 2489 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2490 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2491 if (setup->is_authenticated) 2492 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2493 if (setup->is_secure) 2494 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2495 2496 /* mcast rate setting in Mesh Node */ 2497 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2498 sizeof(setup->mcast_rate)); 2499 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2500 2501 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2502 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2503 2504 sdata->beacon_rate_set = false; 2505 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2506 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2507 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2508 sdata->beacon_rateidx_mask[i] = 2509 setup->beacon_rate.control[i].legacy; 2510 if (sdata->beacon_rateidx_mask[i]) 2511 sdata->beacon_rate_set = true; 2512 } 2513 } 2514 2515 return 0; 2516 } 2517 2518 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2519 struct net_device *dev, u32 mask, 2520 const struct mesh_config *nconf) 2521 { 2522 struct mesh_config *conf; 2523 struct ieee80211_sub_if_data *sdata; 2524 struct ieee80211_if_mesh *ifmsh; 2525 2526 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2527 ifmsh = &sdata->u.mesh; 2528 2529 /* Set the config options which we are interested in setting */ 2530 conf = &(sdata->u.mesh.mshcfg); 2531 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2532 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2533 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2534 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2535 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2536 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2537 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2538 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2539 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2540 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2541 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2542 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2543 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2544 conf->element_ttl = nconf->element_ttl; 2545 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2546 if (ifmsh->user_mpm) 2547 return -EBUSY; 2548 conf->auto_open_plinks = nconf->auto_open_plinks; 2549 } 2550 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2551 conf->dot11MeshNbrOffsetMaxNeighbor = 2552 nconf->dot11MeshNbrOffsetMaxNeighbor; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2554 conf->dot11MeshHWMPmaxPREQretries = 2555 nconf->dot11MeshHWMPmaxPREQretries; 2556 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2557 conf->path_refresh_time = nconf->path_refresh_time; 2558 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2559 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2560 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2561 conf->dot11MeshHWMPactivePathTimeout = 2562 nconf->dot11MeshHWMPactivePathTimeout; 2563 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2564 conf->dot11MeshHWMPpreqMinInterval = 2565 nconf->dot11MeshHWMPpreqMinInterval; 2566 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2567 conf->dot11MeshHWMPperrMinInterval = 2568 nconf->dot11MeshHWMPperrMinInterval; 2569 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2570 mask)) 2571 conf->dot11MeshHWMPnetDiameterTraversalTime = 2572 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2573 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2574 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2575 ieee80211_mesh_root_setup(ifmsh); 2576 } 2577 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2578 /* our current gate announcement implementation rides on root 2579 * announcements, so require this ifmsh to also be a root node 2580 * */ 2581 if (nconf->dot11MeshGateAnnouncementProtocol && 2582 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2583 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2584 ieee80211_mesh_root_setup(ifmsh); 2585 } 2586 conf->dot11MeshGateAnnouncementProtocol = 2587 nconf->dot11MeshGateAnnouncementProtocol; 2588 } 2589 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2590 conf->dot11MeshHWMPRannInterval = 2591 nconf->dot11MeshHWMPRannInterval; 2592 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2593 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2594 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2595 /* our RSSI threshold implementation is supported only for 2596 * devices that report signal in dBm. 2597 */ 2598 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2599 return -EOPNOTSUPP; 2600 conf->rssi_threshold = nconf->rssi_threshold; 2601 } 2602 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2603 conf->ht_opmode = nconf->ht_opmode; 2604 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2605 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2606 BSS_CHANGED_HT); 2607 } 2608 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2609 conf->dot11MeshHWMPactivePathToRootTimeout = 2610 nconf->dot11MeshHWMPactivePathToRootTimeout; 2611 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2612 conf->dot11MeshHWMProotInterval = 2613 nconf->dot11MeshHWMProotInterval; 2614 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2615 conf->dot11MeshHWMPconfirmationInterval = 2616 nconf->dot11MeshHWMPconfirmationInterval; 2617 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2618 conf->power_mode = nconf->power_mode; 2619 ieee80211_mps_local_status_update(sdata); 2620 } 2621 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2622 conf->dot11MeshAwakeWindowDuration = 2623 nconf->dot11MeshAwakeWindowDuration; 2624 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2625 conf->plink_timeout = nconf->plink_timeout; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2627 conf->dot11MeshConnectedToMeshGate = 2628 nconf->dot11MeshConnectedToMeshGate; 2629 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2630 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2631 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2632 conf->dot11MeshConnectedToAuthServer = 2633 nconf->dot11MeshConnectedToAuthServer; 2634 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2635 return 0; 2636 } 2637 2638 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2639 const struct mesh_config *conf, 2640 const struct mesh_setup *setup) 2641 { 2642 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2643 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2644 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2645 int err; 2646 2647 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2648 2649 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2650 err = copy_mesh_setup(ifmsh, setup); 2651 if (err) 2652 return err; 2653 2654 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2655 2656 /* can mesh use other SMPS modes? */ 2657 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2658 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2659 2660 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2661 IEEE80211_CHANCTX_SHARED); 2662 if (err) 2663 return err; 2664 2665 return ieee80211_start_mesh(sdata); 2666 } 2667 2668 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2669 { 2670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2671 2672 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2673 2674 ieee80211_stop_mesh(sdata); 2675 ieee80211_link_release_channel(&sdata->deflink); 2676 kfree(sdata->u.mesh.ie); 2677 2678 return 0; 2679 } 2680 #endif 2681 2682 static int ieee80211_change_bss(struct wiphy *wiphy, 2683 struct net_device *dev, 2684 struct bss_parameters *params) 2685 { 2686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2687 struct ieee80211_link_data *link; 2688 struct ieee80211_supported_band *sband; 2689 u64 changed = 0; 2690 2691 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2692 if (IS_ERR(link)) 2693 return PTR_ERR(link); 2694 2695 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2696 return -ENOENT; 2697 2698 sband = ieee80211_get_link_sband(link); 2699 if (!sband) 2700 return -EINVAL; 2701 2702 if (params->basic_rates) { 2703 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2704 wiphy->bands[sband->band], 2705 params->basic_rates, 2706 params->basic_rates_len, 2707 &link->conf->basic_rates)) 2708 return -EINVAL; 2709 changed |= BSS_CHANGED_BASIC_RATES; 2710 ieee80211_check_rate_mask(link); 2711 } 2712 2713 if (params->use_cts_prot >= 0) { 2714 link->conf->use_cts_prot = params->use_cts_prot; 2715 changed |= BSS_CHANGED_ERP_CTS_PROT; 2716 } 2717 if (params->use_short_preamble >= 0) { 2718 link->conf->use_short_preamble = params->use_short_preamble; 2719 changed |= BSS_CHANGED_ERP_PREAMBLE; 2720 } 2721 2722 if (!link->conf->use_short_slot && 2723 (sband->band == NL80211_BAND_5GHZ || 2724 sband->band == NL80211_BAND_6GHZ)) { 2725 link->conf->use_short_slot = true; 2726 changed |= BSS_CHANGED_ERP_SLOT; 2727 } 2728 2729 if (params->use_short_slot_time >= 0) { 2730 link->conf->use_short_slot = params->use_short_slot_time; 2731 changed |= BSS_CHANGED_ERP_SLOT; 2732 } 2733 2734 if (params->ap_isolate >= 0) { 2735 if (params->ap_isolate) 2736 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2737 else 2738 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2739 ieee80211_check_fast_rx_iface(sdata); 2740 } 2741 2742 if (params->ht_opmode >= 0) { 2743 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2744 changed |= BSS_CHANGED_HT; 2745 } 2746 2747 if (params->p2p_ctwindow >= 0) { 2748 link->conf->p2p_noa_attr.oppps_ctwindow &= 2749 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2750 link->conf->p2p_noa_attr.oppps_ctwindow |= 2751 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2752 changed |= BSS_CHANGED_P2P_PS; 2753 } 2754 2755 if (params->p2p_opp_ps > 0) { 2756 link->conf->p2p_noa_attr.oppps_ctwindow |= 2757 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2758 changed |= BSS_CHANGED_P2P_PS; 2759 } else if (params->p2p_opp_ps == 0) { 2760 link->conf->p2p_noa_attr.oppps_ctwindow &= 2761 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2762 changed |= BSS_CHANGED_P2P_PS; 2763 } 2764 2765 ieee80211_link_info_change_notify(sdata, link, changed); 2766 2767 return 0; 2768 } 2769 2770 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2771 struct net_device *dev, 2772 struct ieee80211_txq_params *params) 2773 { 2774 struct ieee80211_local *local = wiphy_priv(wiphy); 2775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2776 struct ieee80211_link_data *link = 2777 ieee80211_link_or_deflink(sdata, params->link_id, true); 2778 struct ieee80211_tx_queue_params p; 2779 2780 if (!local->ops->conf_tx) 2781 return -EOPNOTSUPP; 2782 2783 if (local->hw.queues < IEEE80211_NUM_ACS) 2784 return -EOPNOTSUPP; 2785 2786 if (IS_ERR(link)) 2787 return PTR_ERR(link); 2788 2789 memset(&p, 0, sizeof(p)); 2790 p.aifs = params->aifs; 2791 p.cw_max = params->cwmax; 2792 p.cw_min = params->cwmin; 2793 p.txop = params->txop; 2794 2795 /* 2796 * Setting tx queue params disables u-apsd because it's only 2797 * called in master mode. 2798 */ 2799 p.uapsd = false; 2800 2801 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2802 2803 link->tx_conf[params->ac] = p; 2804 if (drv_conf_tx(local, link, params->ac, &p)) { 2805 wiphy_debug(local->hw.wiphy, 2806 "failed to set TX queue parameters for AC %d\n", 2807 params->ac); 2808 return -EINVAL; 2809 } 2810 2811 ieee80211_link_info_change_notify(sdata, link, 2812 BSS_CHANGED_QOS); 2813 2814 return 0; 2815 } 2816 2817 #ifdef CONFIG_PM 2818 static int ieee80211_suspend(struct wiphy *wiphy, 2819 struct cfg80211_wowlan *wowlan) 2820 { 2821 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2822 } 2823 2824 static int ieee80211_resume(struct wiphy *wiphy) 2825 { 2826 return __ieee80211_resume(wiphy_priv(wiphy)); 2827 } 2828 #else 2829 #define ieee80211_suspend NULL 2830 #define ieee80211_resume NULL 2831 #endif 2832 2833 static int ieee80211_scan(struct wiphy *wiphy, 2834 struct cfg80211_scan_request *req) 2835 { 2836 struct ieee80211_sub_if_data *sdata; 2837 2838 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2839 2840 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2841 case NL80211_IFTYPE_STATION: 2842 case NL80211_IFTYPE_ADHOC: 2843 case NL80211_IFTYPE_MESH_POINT: 2844 case NL80211_IFTYPE_P2P_CLIENT: 2845 case NL80211_IFTYPE_P2P_DEVICE: 2846 break; 2847 case NL80211_IFTYPE_P2P_GO: 2848 if (sdata->local->ops->hw_scan) 2849 break; 2850 /* 2851 * FIXME: implement NoA while scanning in software, 2852 * for now fall through to allow scanning only when 2853 * beaconing hasn't been configured yet 2854 */ 2855 fallthrough; 2856 case NL80211_IFTYPE_AP: 2857 /* 2858 * If the scan has been forced (and the driver supports 2859 * forcing), don't care about being beaconing already. 2860 * This will create problems to the attached stations (e.g. all 2861 * the frames sent while scanning on other channel will be 2862 * lost) 2863 */ 2864 if (sdata->deflink.u.ap.beacon && 2865 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2866 !(req->flags & NL80211_SCAN_FLAG_AP))) 2867 return -EOPNOTSUPP; 2868 break; 2869 case NL80211_IFTYPE_NAN: 2870 default: 2871 return -EOPNOTSUPP; 2872 } 2873 2874 return ieee80211_request_scan(sdata, req); 2875 } 2876 2877 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2878 { 2879 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2880 } 2881 2882 static int 2883 ieee80211_sched_scan_start(struct wiphy *wiphy, 2884 struct net_device *dev, 2885 struct cfg80211_sched_scan_request *req) 2886 { 2887 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2888 2889 if (!sdata->local->ops->sched_scan_start) 2890 return -EOPNOTSUPP; 2891 2892 return ieee80211_request_sched_scan_start(sdata, req); 2893 } 2894 2895 static int 2896 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2897 u64 reqid) 2898 { 2899 struct ieee80211_local *local = wiphy_priv(wiphy); 2900 2901 if (!local->ops->sched_scan_stop) 2902 return -EOPNOTSUPP; 2903 2904 return ieee80211_request_sched_scan_stop(local); 2905 } 2906 2907 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2908 struct cfg80211_auth_request *req) 2909 { 2910 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2911 } 2912 2913 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2914 struct cfg80211_assoc_request *req) 2915 { 2916 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2917 } 2918 2919 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2920 struct cfg80211_deauth_request *req) 2921 { 2922 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2923 } 2924 2925 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2926 struct cfg80211_disassoc_request *req) 2927 { 2928 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2929 } 2930 2931 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2932 struct cfg80211_ibss_params *params) 2933 { 2934 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2935 } 2936 2937 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2938 { 2939 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2940 } 2941 2942 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2943 struct ocb_setup *setup) 2944 { 2945 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2946 } 2947 2948 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2949 { 2950 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2951 } 2952 2953 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2954 int rate[NUM_NL80211_BANDS]) 2955 { 2956 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2957 2958 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2959 sizeof(int) * NUM_NL80211_BANDS); 2960 2961 if (ieee80211_sdata_running(sdata)) 2962 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2963 BSS_CHANGED_MCAST_RATE); 2964 2965 return 0; 2966 } 2967 2968 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2969 { 2970 struct ieee80211_local *local = wiphy_priv(wiphy); 2971 int err; 2972 2973 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2974 ieee80211_check_fast_xmit_all(local); 2975 2976 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2977 2978 if (err) { 2979 ieee80211_check_fast_xmit_all(local); 2980 return err; 2981 } 2982 } 2983 2984 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2985 (changed & WIPHY_PARAM_DYN_ACK)) { 2986 s16 coverage_class; 2987 2988 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2989 wiphy->coverage_class : -1; 2990 err = drv_set_coverage_class(local, coverage_class); 2991 2992 if (err) 2993 return err; 2994 } 2995 2996 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2997 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2998 2999 if (err) 3000 return err; 3001 } 3002 3003 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3004 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3005 return -EINVAL; 3006 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3007 } 3008 if (changed & WIPHY_PARAM_RETRY_LONG) { 3009 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3010 return -EINVAL; 3011 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3012 } 3013 if (changed & 3014 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3015 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3016 3017 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3018 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3019 WIPHY_PARAM_TXQ_QUANTUM)) 3020 ieee80211_txq_set_params(local); 3021 3022 return 0; 3023 } 3024 3025 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3026 struct wireless_dev *wdev, 3027 enum nl80211_tx_power_setting type, int mbm) 3028 { 3029 struct ieee80211_local *local = wiphy_priv(wiphy); 3030 struct ieee80211_sub_if_data *sdata; 3031 enum nl80211_tx_power_setting txp_type = type; 3032 bool update_txp_type = false; 3033 bool has_monitor = false; 3034 3035 lockdep_assert_wiphy(local->hw.wiphy); 3036 3037 if (wdev) { 3038 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3039 3040 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3041 sdata = wiphy_dereference(local->hw.wiphy, 3042 local->monitor_sdata); 3043 if (!sdata) 3044 return -EOPNOTSUPP; 3045 } 3046 3047 switch (type) { 3048 case NL80211_TX_POWER_AUTOMATIC: 3049 sdata->deflink.user_power_level = 3050 IEEE80211_UNSET_POWER_LEVEL; 3051 txp_type = NL80211_TX_POWER_LIMITED; 3052 break; 3053 case NL80211_TX_POWER_LIMITED: 3054 case NL80211_TX_POWER_FIXED: 3055 if (mbm < 0 || (mbm % 100)) 3056 return -EOPNOTSUPP; 3057 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3058 break; 3059 } 3060 3061 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3062 update_txp_type = true; 3063 sdata->vif.bss_conf.txpower_type = txp_type; 3064 } 3065 3066 ieee80211_recalc_txpower(sdata, update_txp_type); 3067 3068 return 0; 3069 } 3070 3071 switch (type) { 3072 case NL80211_TX_POWER_AUTOMATIC: 3073 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3074 txp_type = NL80211_TX_POWER_LIMITED; 3075 break; 3076 case NL80211_TX_POWER_LIMITED: 3077 case NL80211_TX_POWER_FIXED: 3078 if (mbm < 0 || (mbm % 100)) 3079 return -EOPNOTSUPP; 3080 local->user_power_level = MBM_TO_DBM(mbm); 3081 break; 3082 } 3083 3084 list_for_each_entry(sdata, &local->interfaces, list) { 3085 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3086 has_monitor = true; 3087 continue; 3088 } 3089 sdata->deflink.user_power_level = local->user_power_level; 3090 if (txp_type != sdata->vif.bss_conf.txpower_type) 3091 update_txp_type = true; 3092 sdata->vif.bss_conf.txpower_type = txp_type; 3093 } 3094 list_for_each_entry(sdata, &local->interfaces, list) { 3095 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3096 continue; 3097 ieee80211_recalc_txpower(sdata, update_txp_type); 3098 } 3099 3100 if (has_monitor) { 3101 sdata = wiphy_dereference(local->hw.wiphy, 3102 local->monitor_sdata); 3103 if (sdata) { 3104 sdata->deflink.user_power_level = local->user_power_level; 3105 if (txp_type != sdata->vif.bss_conf.txpower_type) 3106 update_txp_type = true; 3107 sdata->vif.bss_conf.txpower_type = txp_type; 3108 3109 ieee80211_recalc_txpower(sdata, update_txp_type); 3110 } 3111 } 3112 3113 return 0; 3114 } 3115 3116 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3117 struct wireless_dev *wdev, 3118 int *dbm) 3119 { 3120 struct ieee80211_local *local = wiphy_priv(wiphy); 3121 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3122 3123 if (local->ops->get_txpower) 3124 return drv_get_txpower(local, sdata, dbm); 3125 3126 if (local->emulate_chanctx) 3127 *dbm = local->hw.conf.power_level; 3128 else 3129 *dbm = sdata->vif.bss_conf.txpower; 3130 3131 /* INT_MIN indicates no power level was set yet */ 3132 if (*dbm == INT_MIN) 3133 return -EINVAL; 3134 3135 return 0; 3136 } 3137 3138 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3139 { 3140 struct ieee80211_local *local = wiphy_priv(wiphy); 3141 3142 drv_rfkill_poll(local); 3143 } 3144 3145 #ifdef CONFIG_NL80211_TESTMODE 3146 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3147 struct wireless_dev *wdev, 3148 void *data, int len) 3149 { 3150 struct ieee80211_local *local = wiphy_priv(wiphy); 3151 struct ieee80211_vif *vif = NULL; 3152 3153 if (!local->ops->testmode_cmd) 3154 return -EOPNOTSUPP; 3155 3156 if (wdev) { 3157 struct ieee80211_sub_if_data *sdata; 3158 3159 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3160 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3161 vif = &sdata->vif; 3162 } 3163 3164 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3165 } 3166 3167 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3168 struct sk_buff *skb, 3169 struct netlink_callback *cb, 3170 void *data, int len) 3171 { 3172 struct ieee80211_local *local = wiphy_priv(wiphy); 3173 3174 if (!local->ops->testmode_dump) 3175 return -EOPNOTSUPP; 3176 3177 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3178 } 3179 #endif 3180 3181 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3182 struct ieee80211_link_data *link, 3183 enum ieee80211_smps_mode smps_mode) 3184 { 3185 const u8 *ap; 3186 enum ieee80211_smps_mode old_req; 3187 int err; 3188 struct sta_info *sta; 3189 bool tdls_peer_found = false; 3190 3191 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3192 3193 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3194 return -EINVAL; 3195 3196 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3197 return 0; 3198 3199 old_req = link->u.mgd.req_smps; 3200 link->u.mgd.req_smps = smps_mode; 3201 3202 /* The driver indicated that EML is enabled for the interface, which 3203 * implies that SMPS flows towards the AP should be stopped. 3204 */ 3205 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3206 return 0; 3207 3208 if (old_req == smps_mode && 3209 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3210 return 0; 3211 3212 /* 3213 * If not associated, or current association is not an HT 3214 * association, there's no need to do anything, just store 3215 * the new value until we associate. 3216 */ 3217 if (!sdata->u.mgd.associated || 3218 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3219 return 0; 3220 3221 ap = sdata->vif.cfg.ap_addr; 3222 3223 rcu_read_lock(); 3224 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3225 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3226 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3227 continue; 3228 3229 tdls_peer_found = true; 3230 break; 3231 } 3232 rcu_read_unlock(); 3233 3234 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3235 if (tdls_peer_found || !sdata->u.mgd.powersave) 3236 smps_mode = IEEE80211_SMPS_OFF; 3237 else 3238 smps_mode = IEEE80211_SMPS_DYNAMIC; 3239 } 3240 3241 /* send SM PS frame to AP */ 3242 err = ieee80211_send_smps_action(sdata, smps_mode, 3243 ap, ap, 3244 ieee80211_vif_is_mld(&sdata->vif) ? 3245 link->link_id : -1); 3246 if (err) 3247 link->u.mgd.req_smps = old_req; 3248 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3249 ieee80211_teardown_tdls_peers(link); 3250 3251 return err; 3252 } 3253 3254 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3255 bool enabled, int timeout) 3256 { 3257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3258 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3259 unsigned int link_id; 3260 3261 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3262 return -EOPNOTSUPP; 3263 3264 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3265 return -EOPNOTSUPP; 3266 3267 if (enabled == sdata->u.mgd.powersave && 3268 timeout == local->dynamic_ps_forced_timeout) 3269 return 0; 3270 3271 sdata->u.mgd.powersave = enabled; 3272 local->dynamic_ps_forced_timeout = timeout; 3273 3274 /* no change, but if automatic follow powersave */ 3275 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3276 struct ieee80211_link_data *link; 3277 3278 link = sdata_dereference(sdata->link[link_id], sdata); 3279 3280 if (!link) 3281 continue; 3282 __ieee80211_request_smps_mgd(sdata, link, 3283 link->u.mgd.req_smps); 3284 } 3285 3286 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3287 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3288 3289 ieee80211_recalc_ps(local); 3290 ieee80211_recalc_ps_vif(sdata); 3291 ieee80211_check_fast_rx_iface(sdata); 3292 3293 return 0; 3294 } 3295 3296 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3297 struct ieee80211_link_data *link, 3298 s32 rssi_thold, u32 rssi_hyst, 3299 s32 rssi_low, s32 rssi_high) 3300 { 3301 struct ieee80211_bss_conf *conf; 3302 3303 if (!link || !link->conf) 3304 return; 3305 3306 conf = link->conf; 3307 3308 if (rssi_thold && rssi_hyst && 3309 rssi_thold == conf->cqm_rssi_thold && 3310 rssi_hyst == conf->cqm_rssi_hyst) 3311 return; 3312 3313 conf->cqm_rssi_thold = rssi_thold; 3314 conf->cqm_rssi_hyst = rssi_hyst; 3315 conf->cqm_rssi_low = rssi_low; 3316 conf->cqm_rssi_high = rssi_high; 3317 link->u.mgd.last_cqm_event_signal = 0; 3318 3319 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3320 return; 3321 3322 if (sdata->u.mgd.associated && 3323 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3324 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3325 } 3326 3327 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3328 struct net_device *dev, 3329 s32 rssi_thold, u32 rssi_hyst) 3330 { 3331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3332 struct ieee80211_vif *vif = &sdata->vif; 3333 int link_id; 3334 3335 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3336 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3337 return -EOPNOTSUPP; 3338 3339 /* For MLD, handle CQM change on all the active links */ 3340 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3341 struct ieee80211_link_data *link = 3342 sdata_dereference(sdata->link[link_id], sdata); 3343 3344 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3345 0, 0); 3346 } 3347 3348 return 0; 3349 } 3350 3351 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3352 struct net_device *dev, 3353 s32 rssi_low, s32 rssi_high) 3354 { 3355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3356 struct ieee80211_vif *vif = &sdata->vif; 3357 int link_id; 3358 3359 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3360 return -EOPNOTSUPP; 3361 3362 /* For MLD, handle CQM change on all the active links */ 3363 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3364 struct ieee80211_link_data *link = 3365 sdata_dereference(sdata->link[link_id], sdata); 3366 3367 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3368 rssi_low, rssi_high); 3369 } 3370 3371 return 0; 3372 } 3373 3374 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3375 struct net_device *dev, 3376 unsigned int link_id, 3377 const u8 *addr, 3378 const struct cfg80211_bitrate_mask *mask) 3379 { 3380 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3381 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3382 int i, ret; 3383 3384 if (!ieee80211_sdata_running(sdata)) 3385 return -ENETDOWN; 3386 3387 /* 3388 * If active validate the setting and reject it if it doesn't leave 3389 * at least one basic rate usable, since we really have to be able 3390 * to send something, and if we're an AP we have to be able to do 3391 * so at a basic rate so that all clients can receive it. 3392 */ 3393 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3394 sdata->vif.bss_conf.chanreq.oper.chan) { 3395 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3396 enum nl80211_band band; 3397 3398 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3399 3400 if (!(mask->control[band].legacy & basic_rates)) 3401 return -EINVAL; 3402 } 3403 3404 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3405 ret = drv_set_bitrate_mask(local, sdata, mask); 3406 if (ret) 3407 return ret; 3408 } 3409 3410 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3411 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3412 int j; 3413 3414 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3415 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3416 sizeof(mask->control[i].ht_mcs)); 3417 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3418 mask->control[i].vht_mcs, 3419 sizeof(mask->control[i].vht_mcs)); 3420 3421 sdata->rc_has_mcs_mask[i] = false; 3422 sdata->rc_has_vht_mcs_mask[i] = false; 3423 if (!sband) 3424 continue; 3425 3426 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3427 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3428 sdata->rc_has_mcs_mask[i] = true; 3429 break; 3430 } 3431 } 3432 3433 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3434 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3435 sdata->rc_has_vht_mcs_mask[i] = true; 3436 break; 3437 } 3438 } 3439 } 3440 3441 return 0; 3442 } 3443 3444 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3445 struct net_device *dev, 3446 struct cfg80211_chan_def *chandef, 3447 u32 cac_time_ms) 3448 { 3449 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3450 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3451 struct ieee80211_local *local = sdata->local; 3452 int err; 3453 3454 lockdep_assert_wiphy(local->hw.wiphy); 3455 3456 if (!list_empty(&local->roc_list) || local->scanning) { 3457 err = -EBUSY; 3458 goto out_unlock; 3459 } 3460 3461 /* whatever, but channel contexts should not complain about that one */ 3462 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3463 sdata->deflink.needed_rx_chains = local->rx_chains; 3464 3465 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 3466 IEEE80211_CHANCTX_SHARED); 3467 if (err) 3468 goto out_unlock; 3469 3470 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3471 msecs_to_jiffies(cac_time_ms)); 3472 3473 out_unlock: 3474 return err; 3475 } 3476 3477 static void ieee80211_end_cac(struct wiphy *wiphy, 3478 struct net_device *dev) 3479 { 3480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3481 struct ieee80211_local *local = sdata->local; 3482 3483 lockdep_assert_wiphy(local->hw.wiphy); 3484 3485 list_for_each_entry(sdata, &local->interfaces, list) { 3486 /* it might be waiting for the local->mtx, but then 3487 * by the time it gets it, sdata->wdev.cac_started 3488 * will no longer be true 3489 */ 3490 wiphy_delayed_work_cancel(wiphy, 3491 &sdata->deflink.dfs_cac_timer_work); 3492 3493 if (sdata->wdev.cac_started) { 3494 ieee80211_link_release_channel(&sdata->deflink); 3495 sdata->wdev.cac_started = false; 3496 } 3497 } 3498 } 3499 3500 static struct cfg80211_beacon_data * 3501 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3502 { 3503 struct cfg80211_beacon_data *new_beacon; 3504 u8 *pos; 3505 int len; 3506 3507 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3508 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3509 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3510 3511 if (beacon->mbssid_ies) 3512 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3513 beacon->rnr_ies, 3514 beacon->mbssid_ies->cnt); 3515 3516 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3517 if (!new_beacon) 3518 return NULL; 3519 3520 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3521 new_beacon->mbssid_ies = 3522 kzalloc(struct_size(new_beacon->mbssid_ies, 3523 elem, beacon->mbssid_ies->cnt), 3524 GFP_KERNEL); 3525 if (!new_beacon->mbssid_ies) { 3526 kfree(new_beacon); 3527 return NULL; 3528 } 3529 3530 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3531 new_beacon->rnr_ies = 3532 kzalloc(struct_size(new_beacon->rnr_ies, 3533 elem, beacon->rnr_ies->cnt), 3534 GFP_KERNEL); 3535 if (!new_beacon->rnr_ies) { 3536 kfree(new_beacon->mbssid_ies); 3537 kfree(new_beacon); 3538 return NULL; 3539 } 3540 } 3541 } 3542 3543 pos = (u8 *)(new_beacon + 1); 3544 if (beacon->head_len) { 3545 new_beacon->head_len = beacon->head_len; 3546 new_beacon->head = pos; 3547 memcpy(pos, beacon->head, beacon->head_len); 3548 pos += beacon->head_len; 3549 } 3550 if (beacon->tail_len) { 3551 new_beacon->tail_len = beacon->tail_len; 3552 new_beacon->tail = pos; 3553 memcpy(pos, beacon->tail, beacon->tail_len); 3554 pos += beacon->tail_len; 3555 } 3556 if (beacon->beacon_ies_len) { 3557 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3558 new_beacon->beacon_ies = pos; 3559 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3560 pos += beacon->beacon_ies_len; 3561 } 3562 if (beacon->proberesp_ies_len) { 3563 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3564 new_beacon->proberesp_ies = pos; 3565 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3566 pos += beacon->proberesp_ies_len; 3567 } 3568 if (beacon->assocresp_ies_len) { 3569 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3570 new_beacon->assocresp_ies = pos; 3571 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3572 pos += beacon->assocresp_ies_len; 3573 } 3574 if (beacon->probe_resp_len) { 3575 new_beacon->probe_resp_len = beacon->probe_resp_len; 3576 new_beacon->probe_resp = pos; 3577 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3578 pos += beacon->probe_resp_len; 3579 } 3580 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3581 pos += ieee80211_copy_mbssid_beacon(pos, 3582 new_beacon->mbssid_ies, 3583 beacon->mbssid_ies); 3584 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3585 pos += ieee80211_copy_rnr_beacon(pos, 3586 new_beacon->rnr_ies, 3587 beacon->rnr_ies); 3588 } 3589 3590 /* might copy -1, meaning no changes requested */ 3591 new_beacon->ftm_responder = beacon->ftm_responder; 3592 if (beacon->lci) { 3593 new_beacon->lci_len = beacon->lci_len; 3594 new_beacon->lci = pos; 3595 memcpy(pos, beacon->lci, beacon->lci_len); 3596 pos += beacon->lci_len; 3597 } 3598 if (beacon->civicloc) { 3599 new_beacon->civicloc_len = beacon->civicloc_len; 3600 new_beacon->civicloc = pos; 3601 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3602 pos += beacon->civicloc_len; 3603 } 3604 3605 return new_beacon; 3606 } 3607 3608 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3609 { 3610 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3611 struct ieee80211_local *local = sdata->local; 3612 struct ieee80211_link_data *link_data; 3613 3614 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3615 return; 3616 3617 rcu_read_lock(); 3618 3619 link_data = rcu_dereference(sdata->link[link_id]); 3620 if (WARN_ON(!link_data)) { 3621 rcu_read_unlock(); 3622 return; 3623 } 3624 3625 /* TODO: MBSSID with MLO changes */ 3626 if (vif->mbssid_tx_vif == vif) { 3627 /* Trigger ieee80211_csa_finish() on the non-transmitting 3628 * interfaces when channel switch is received on 3629 * transmitting interface 3630 */ 3631 struct ieee80211_sub_if_data *iter; 3632 3633 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3634 if (!ieee80211_sdata_running(iter)) 3635 continue; 3636 3637 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3638 continue; 3639 3640 wiphy_work_queue(iter->local->hw.wiphy, 3641 &iter->deflink.csa_finalize_work); 3642 } 3643 } 3644 wiphy_work_queue(local->hw.wiphy, &link_data->csa_finalize_work); 3645 3646 rcu_read_unlock(); 3647 } 3648 EXPORT_SYMBOL(ieee80211_csa_finish); 3649 3650 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3651 { 3652 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3653 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3654 struct ieee80211_local *local = sdata->local; 3655 3656 sdata->csa_blocked_queues = block_tx; 3657 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3658 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3659 } 3660 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3661 3662 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3663 u64 *changed) 3664 { 3665 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3666 int err; 3667 3668 switch (sdata->vif.type) { 3669 case NL80211_IFTYPE_AP: 3670 if (!link_data->u.ap.next_beacon) 3671 return -EINVAL; 3672 3673 err = ieee80211_assign_beacon(sdata, link_data, 3674 link_data->u.ap.next_beacon, 3675 NULL, NULL, changed); 3676 ieee80211_free_next_beacon(link_data); 3677 3678 if (err < 0) 3679 return err; 3680 break; 3681 case NL80211_IFTYPE_ADHOC: 3682 err = ieee80211_ibss_finish_csa(sdata, changed); 3683 if (err < 0) 3684 return err; 3685 break; 3686 #ifdef CONFIG_MAC80211_MESH 3687 case NL80211_IFTYPE_MESH_POINT: 3688 err = ieee80211_mesh_finish_csa(sdata, changed); 3689 if (err < 0) 3690 return err; 3691 break; 3692 #endif 3693 default: 3694 WARN_ON(1); 3695 return -EINVAL; 3696 } 3697 3698 return 0; 3699 } 3700 3701 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3702 { 3703 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3704 struct ieee80211_local *local = sdata->local; 3705 struct ieee80211_bss_conf *link_conf = link_data->conf; 3706 u64 changed = 0; 3707 int err; 3708 3709 lockdep_assert_wiphy(local->hw.wiphy); 3710 3711 /* 3712 * using reservation isn't immediate as it may be deferred until later 3713 * with multi-vif. once reservation is complete it will re-schedule the 3714 * work with no reserved_chanctx so verify chandef to check if it 3715 * completed successfully 3716 */ 3717 3718 if (link_data->reserved_chanctx) { 3719 /* 3720 * with multi-vif csa driver may call ieee80211_csa_finish() 3721 * many times while waiting for other interfaces to use their 3722 * reservations 3723 */ 3724 if (link_data->reserved_ready) 3725 return 0; 3726 3727 return ieee80211_link_use_reserved_context(link_data); 3728 } 3729 3730 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3731 &link_data->csa_chanreq.oper)) 3732 return -EINVAL; 3733 3734 link_conf->csa_active = false; 3735 3736 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3737 if (err) 3738 return err; 3739 3740 ieee80211_link_info_change_notify(sdata, link_data, changed); 3741 3742 if (sdata->csa_blocked_queues) { 3743 ieee80211_wake_vif_queues(local, sdata, 3744 IEEE80211_QUEUE_STOP_REASON_CSA); 3745 sdata->csa_blocked_queues = false; 3746 } 3747 3748 err = drv_post_channel_switch(link_data); 3749 if (err) 3750 return err; 3751 3752 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chanreq.oper, 3753 link_data->link_id); 3754 3755 return 0; 3756 } 3757 3758 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3759 { 3760 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3761 3762 if (__ieee80211_csa_finalize(link_data)) { 3763 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3764 link_data->link_id); 3765 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3766 GFP_KERNEL); 3767 } 3768 } 3769 3770 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3771 { 3772 struct ieee80211_link_data *link = 3773 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3774 struct ieee80211_sub_if_data *sdata = link->sdata; 3775 struct ieee80211_local *local = sdata->local; 3776 3777 lockdep_assert_wiphy(local->hw.wiphy); 3778 3779 /* AP might have been stopped while waiting for the lock. */ 3780 if (!link->conf->csa_active) 3781 return; 3782 3783 if (!ieee80211_sdata_running(sdata)) 3784 return; 3785 3786 ieee80211_csa_finalize(link); 3787 } 3788 3789 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3790 struct cfg80211_csa_settings *params, 3791 u64 *changed) 3792 { 3793 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3794 struct ieee80211_csa_settings csa = {}; 3795 int err; 3796 3797 switch (sdata->vif.type) { 3798 case NL80211_IFTYPE_AP: 3799 link_data->u.ap.next_beacon = 3800 cfg80211_beacon_dup(¶ms->beacon_after); 3801 if (!link_data->u.ap.next_beacon) 3802 return -ENOMEM; 3803 3804 /* 3805 * With a count of 0, we don't have to wait for any 3806 * TBTT before switching, so complete the CSA 3807 * immediately. In theory, with a count == 1 we 3808 * should delay the switch until just before the next 3809 * TBTT, but that would complicate things so we switch 3810 * immediately too. If we would delay the switch 3811 * until the next TBTT, we would have to set the probe 3812 * response here. 3813 * 3814 * TODO: A channel switch with count <= 1 without 3815 * sending a CSA action frame is kind of useless, 3816 * because the clients won't know we're changing 3817 * channels. The action frame must be implemented 3818 * either here or in the userspace. 3819 */ 3820 if (params->count <= 1) 3821 break; 3822 3823 if ((params->n_counter_offsets_beacon > 3824 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3825 (params->n_counter_offsets_presp > 3826 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3827 ieee80211_free_next_beacon(link_data); 3828 return -EINVAL; 3829 } 3830 3831 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3832 csa.counter_offsets_presp = params->counter_offsets_presp; 3833 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3834 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3835 csa.count = params->count; 3836 3837 err = ieee80211_assign_beacon(sdata, link_data, 3838 ¶ms->beacon_csa, &csa, 3839 NULL, changed); 3840 if (err < 0) { 3841 ieee80211_free_next_beacon(link_data); 3842 return err; 3843 } 3844 3845 break; 3846 case NL80211_IFTYPE_ADHOC: 3847 if (!sdata->vif.cfg.ibss_joined) 3848 return -EINVAL; 3849 3850 if (params->chandef.width != sdata->u.ibss.chandef.width) 3851 return -EINVAL; 3852 3853 switch (params->chandef.width) { 3854 case NL80211_CHAN_WIDTH_40: 3855 if (cfg80211_get_chandef_type(¶ms->chandef) != 3856 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3857 return -EINVAL; 3858 break; 3859 case NL80211_CHAN_WIDTH_5: 3860 case NL80211_CHAN_WIDTH_10: 3861 case NL80211_CHAN_WIDTH_20_NOHT: 3862 case NL80211_CHAN_WIDTH_20: 3863 break; 3864 default: 3865 return -EINVAL; 3866 } 3867 3868 /* changes into another band are not supported */ 3869 if (sdata->u.ibss.chandef.chan->band != 3870 params->chandef.chan->band) 3871 return -EINVAL; 3872 3873 /* see comments in the NL80211_IFTYPE_AP block */ 3874 if (params->count > 1) { 3875 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3876 if (err < 0) 3877 return err; 3878 } 3879 3880 ieee80211_send_action_csa(sdata, params); 3881 3882 break; 3883 #ifdef CONFIG_MAC80211_MESH 3884 case NL80211_IFTYPE_MESH_POINT: { 3885 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3886 3887 /* changes into another band are not supported */ 3888 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3889 params->chandef.chan->band) 3890 return -EINVAL; 3891 3892 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3893 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3894 if (!ifmsh->pre_value) 3895 ifmsh->pre_value = 1; 3896 else 3897 ifmsh->pre_value++; 3898 } 3899 3900 /* see comments in the NL80211_IFTYPE_AP block */ 3901 if (params->count > 1) { 3902 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3903 if (err < 0) { 3904 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3905 return err; 3906 } 3907 } 3908 3909 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3910 ieee80211_send_action_csa(sdata, params); 3911 3912 break; 3913 } 3914 #endif 3915 default: 3916 return -EOPNOTSUPP; 3917 } 3918 3919 return 0; 3920 } 3921 3922 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 3923 { 3924 link->conf->color_change_active = false; 3925 3926 ieee80211_free_next_beacon(link); 3927 3928 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 3929 } 3930 3931 static int 3932 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3933 struct cfg80211_csa_settings *params) 3934 { 3935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3936 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 3937 struct ieee80211_local *local = sdata->local; 3938 struct ieee80211_channel_switch ch_switch = { 3939 .link_id = params->link_id, 3940 }; 3941 struct ieee80211_chanctx_conf *conf; 3942 struct ieee80211_chanctx *chanctx; 3943 struct ieee80211_bss_conf *link_conf; 3944 struct ieee80211_link_data *link_data; 3945 u64 changed = 0; 3946 u8 link_id = params->link_id; 3947 int err; 3948 3949 lockdep_assert_wiphy(local->hw.wiphy); 3950 3951 if (!list_empty(&local->roc_list) || local->scanning) 3952 return -EBUSY; 3953 3954 if (sdata->wdev.cac_started) 3955 return -EBUSY; 3956 3957 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3958 return -EINVAL; 3959 3960 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3961 if (!link_data) 3962 return -ENOLINK; 3963 3964 link_conf = link_data->conf; 3965 3966 if (chanreq.oper.punctured && !link_conf->eht_support) 3967 return -EINVAL; 3968 3969 /* don't allow another channel switch if one is already active. */ 3970 if (link_conf->csa_active) 3971 return -EBUSY; 3972 3973 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 3974 if (!conf) { 3975 err = -EBUSY; 3976 goto out; 3977 } 3978 3979 if (params->chandef.chan->freq_offset) { 3980 /* this may work, but is untested */ 3981 err = -EOPNOTSUPP; 3982 goto out; 3983 } 3984 3985 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3986 3987 ch_switch.timestamp = 0; 3988 ch_switch.device_timestamp = 0; 3989 ch_switch.block_tx = params->block_tx; 3990 ch_switch.chandef = chanreq.oper; 3991 ch_switch.count = params->count; 3992 3993 err = drv_pre_channel_switch(sdata, &ch_switch); 3994 if (err) 3995 goto out; 3996 3997 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 3998 chanctx->mode, 3999 params->radar_required); 4000 if (err) 4001 goto out; 4002 4003 /* if reservation is invalid then this will fail */ 4004 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 4005 if (err) { 4006 ieee80211_link_unreserve_chanctx(link_data); 4007 goto out; 4008 } 4009 4010 /* if there is a color change in progress, abort it */ 4011 if (link_conf->color_change_active) 4012 ieee80211_color_change_abort(link_data); 4013 4014 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4015 if (err) { 4016 ieee80211_link_unreserve_chanctx(link_data); 4017 goto out; 4018 } 4019 4020 link_data->csa_chanreq = chanreq; 4021 link_conf->csa_active = true; 4022 4023 if (params->block_tx && 4024 !ieee80211_hw_check(&local->hw, HANDLES_QUIET_CSA)) { 4025 ieee80211_stop_vif_queues(local, sdata, 4026 IEEE80211_QUEUE_STOP_REASON_CSA); 4027 sdata->csa_blocked_queues = true; 4028 } 4029 4030 cfg80211_ch_switch_started_notify(sdata->dev, 4031 &link_data->csa_chanreq.oper, link_id, 4032 params->count, params->block_tx); 4033 4034 if (changed) { 4035 ieee80211_link_info_change_notify(sdata, link_data, changed); 4036 drv_channel_switch_beacon(sdata, &link_data->csa_chanreq.oper); 4037 } else { 4038 /* if the beacon didn't change, we can finalize immediately */ 4039 ieee80211_csa_finalize(link_data); 4040 } 4041 4042 out: 4043 return err; 4044 } 4045 4046 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4047 struct cfg80211_csa_settings *params) 4048 { 4049 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4050 struct ieee80211_local *local = sdata->local; 4051 4052 lockdep_assert_wiphy(local->hw.wiphy); 4053 4054 return __ieee80211_channel_switch(wiphy, dev, params); 4055 } 4056 4057 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4058 { 4059 lockdep_assert_wiphy(local->hw.wiphy); 4060 4061 local->roc_cookie_counter++; 4062 4063 /* wow, you wrapped 64 bits ... more likely a bug */ 4064 if (WARN_ON(local->roc_cookie_counter == 0)) 4065 local->roc_cookie_counter++; 4066 4067 return local->roc_cookie_counter; 4068 } 4069 4070 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4071 u64 *cookie, gfp_t gfp) 4072 { 4073 unsigned long spin_flags; 4074 struct sk_buff *ack_skb; 4075 int id; 4076 4077 ack_skb = skb_copy(skb, gfp); 4078 if (!ack_skb) 4079 return -ENOMEM; 4080 4081 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4082 id = idr_alloc(&local->ack_status_frames, ack_skb, 4083 1, 0x2000, GFP_ATOMIC); 4084 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4085 4086 if (id < 0) { 4087 kfree_skb(ack_skb); 4088 return -ENOMEM; 4089 } 4090 4091 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4092 IEEE80211_SKB_CB(skb)->status_data = id; 4093 4094 *cookie = ieee80211_mgmt_tx_cookie(local); 4095 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4096 4097 return 0; 4098 } 4099 4100 static void 4101 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4102 struct wireless_dev *wdev, 4103 struct mgmt_frame_regs *upd) 4104 { 4105 struct ieee80211_local *local = wiphy_priv(wiphy); 4106 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4107 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4108 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4109 bool global_change, intf_change; 4110 4111 global_change = 4112 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4113 (local->rx_mcast_action_reg != 4114 !!(upd->global_mcast_stypes & action_mask)); 4115 local->probe_req_reg = upd->global_stypes & preq_mask; 4116 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4117 4118 intf_change = (sdata->vif.probe_req_reg != 4119 !!(upd->interface_stypes & preq_mask)) || 4120 (sdata->vif.rx_mcast_action_reg != 4121 !!(upd->interface_mcast_stypes & action_mask)); 4122 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4123 sdata->vif.rx_mcast_action_reg = 4124 upd->interface_mcast_stypes & action_mask; 4125 4126 if (!local->open_count) 4127 return; 4128 4129 if (intf_change && ieee80211_sdata_running(sdata)) 4130 drv_config_iface_filter(local, sdata, 4131 sdata->vif.probe_req_reg ? 4132 FIF_PROBE_REQ : 0, 4133 FIF_PROBE_REQ); 4134 4135 if (global_change) 4136 ieee80211_configure_filter(local); 4137 } 4138 4139 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4140 { 4141 struct ieee80211_local *local = wiphy_priv(wiphy); 4142 int ret; 4143 4144 if (local->started) 4145 return -EOPNOTSUPP; 4146 4147 ret = drv_set_antenna(local, tx_ant, rx_ant); 4148 if (ret) 4149 return ret; 4150 4151 local->rx_chains = hweight8(rx_ant); 4152 return 0; 4153 } 4154 4155 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4156 { 4157 struct ieee80211_local *local = wiphy_priv(wiphy); 4158 4159 return drv_get_antenna(local, tx_ant, rx_ant); 4160 } 4161 4162 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4163 struct net_device *dev, 4164 struct cfg80211_gtk_rekey_data *data) 4165 { 4166 struct ieee80211_local *local = wiphy_priv(wiphy); 4167 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4168 4169 if (!local->ops->set_rekey_data) 4170 return -EOPNOTSUPP; 4171 4172 drv_set_rekey_data(local, sdata, data); 4173 4174 return 0; 4175 } 4176 4177 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4178 const u8 *peer, u64 *cookie) 4179 { 4180 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4181 struct ieee80211_local *local = sdata->local; 4182 struct ieee80211_qos_hdr *nullfunc; 4183 struct sk_buff *skb; 4184 int size = sizeof(*nullfunc); 4185 __le16 fc; 4186 bool qos; 4187 struct ieee80211_tx_info *info; 4188 struct sta_info *sta; 4189 struct ieee80211_chanctx_conf *chanctx_conf; 4190 enum nl80211_band band; 4191 int ret; 4192 4193 /* the lock is needed to assign the cookie later */ 4194 lockdep_assert_wiphy(local->hw.wiphy); 4195 4196 rcu_read_lock(); 4197 sta = sta_info_get_bss(sdata, peer); 4198 if (!sta) { 4199 ret = -ENOLINK; 4200 goto unlock; 4201 } 4202 4203 qos = sta->sta.wme; 4204 4205 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4206 if (WARN_ON(!chanctx_conf)) { 4207 ret = -EINVAL; 4208 goto unlock; 4209 } 4210 band = chanctx_conf->def.chan->band; 4211 4212 if (qos) { 4213 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4214 IEEE80211_STYPE_QOS_NULLFUNC | 4215 IEEE80211_FCTL_FROMDS); 4216 } else { 4217 size -= 2; 4218 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4219 IEEE80211_STYPE_NULLFUNC | 4220 IEEE80211_FCTL_FROMDS); 4221 } 4222 4223 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4224 if (!skb) { 4225 ret = -ENOMEM; 4226 goto unlock; 4227 } 4228 4229 skb->dev = dev; 4230 4231 skb_reserve(skb, local->hw.extra_tx_headroom); 4232 4233 nullfunc = skb_put(skb, size); 4234 nullfunc->frame_control = fc; 4235 nullfunc->duration_id = 0; 4236 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4237 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4238 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4239 nullfunc->seq_ctrl = 0; 4240 4241 info = IEEE80211_SKB_CB(skb); 4242 4243 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4244 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4245 info->band = band; 4246 4247 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4248 skb->priority = 7; 4249 if (qos) 4250 nullfunc->qos_ctrl = cpu_to_le16(7); 4251 4252 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4253 if (ret) { 4254 kfree_skb(skb); 4255 goto unlock; 4256 } 4257 4258 local_bh_disable(); 4259 ieee80211_xmit(sdata, sta, skb); 4260 local_bh_enable(); 4261 4262 ret = 0; 4263 unlock: 4264 rcu_read_unlock(); 4265 4266 return ret; 4267 } 4268 4269 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4270 struct wireless_dev *wdev, 4271 unsigned int link_id, 4272 struct cfg80211_chan_def *chandef) 4273 { 4274 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4275 struct ieee80211_local *local = wiphy_priv(wiphy); 4276 struct ieee80211_chanctx_conf *chanctx_conf; 4277 struct ieee80211_link_data *link; 4278 int ret = -ENODATA; 4279 4280 rcu_read_lock(); 4281 link = rcu_dereference(sdata->link[link_id]); 4282 if (!link) { 4283 ret = -ENOLINK; 4284 goto out; 4285 } 4286 4287 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4288 if (chanctx_conf) { 4289 *chandef = link->conf->chanreq.oper; 4290 ret = 0; 4291 } else if (local->open_count > 0 && 4292 local->open_count == local->monitors && 4293 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4294 *chandef = local->monitor_chanreq.oper; 4295 ret = 0; 4296 } 4297 out: 4298 rcu_read_unlock(); 4299 4300 return ret; 4301 } 4302 4303 #ifdef CONFIG_PM 4304 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4305 { 4306 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4307 } 4308 #endif 4309 4310 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4311 struct net_device *dev, 4312 struct cfg80211_qos_map *qos_map) 4313 { 4314 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4315 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4316 4317 if (qos_map) { 4318 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4319 if (!new_qos_map) 4320 return -ENOMEM; 4321 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4322 } else { 4323 /* A NULL qos_map was passed to disable QoS mapping */ 4324 new_qos_map = NULL; 4325 } 4326 4327 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4328 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4329 if (old_qos_map) 4330 kfree_rcu(old_qos_map, rcu_head); 4331 4332 return 0; 4333 } 4334 4335 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4336 struct net_device *dev, 4337 unsigned int link_id, 4338 struct cfg80211_chan_def *chandef) 4339 { 4340 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4341 struct ieee80211_link_data *link; 4342 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4343 int ret; 4344 u64 changed = 0; 4345 4346 link = sdata_dereference(sdata->link[link_id], sdata); 4347 4348 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4349 if (ret == 0) 4350 ieee80211_link_info_change_notify(sdata, link, changed); 4351 4352 return ret; 4353 } 4354 4355 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4356 u8 tsid, const u8 *peer, u8 up, 4357 u16 admitted_time) 4358 { 4359 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4360 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4361 int ac = ieee802_1d_to_ac[up]; 4362 4363 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4364 return -EOPNOTSUPP; 4365 4366 if (!(sdata->wmm_acm & BIT(up))) 4367 return -EINVAL; 4368 4369 if (ifmgd->tx_tspec[ac].admitted_time) 4370 return -EBUSY; 4371 4372 if (admitted_time) { 4373 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4374 ifmgd->tx_tspec[ac].tsid = tsid; 4375 ifmgd->tx_tspec[ac].up = up; 4376 } 4377 4378 return 0; 4379 } 4380 4381 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4382 u8 tsid, const u8 *peer) 4383 { 4384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4385 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4386 struct ieee80211_local *local = wiphy_priv(wiphy); 4387 int ac; 4388 4389 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4390 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4391 4392 /* skip unused entries */ 4393 if (!tx_tspec->admitted_time) 4394 continue; 4395 4396 if (tx_tspec->tsid != tsid) 4397 continue; 4398 4399 /* due to this new packets will be reassigned to non-ACM ACs */ 4400 tx_tspec->up = -1; 4401 4402 /* Make sure that all packets have been sent to avoid to 4403 * restore the QoS params on packets that are still on the 4404 * queues. 4405 */ 4406 synchronize_net(); 4407 ieee80211_flush_queues(local, sdata, false); 4408 4409 /* restore the normal QoS parameters 4410 * (unconditionally to avoid races) 4411 */ 4412 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4413 tx_tspec->downgraded = false; 4414 ieee80211_sta_handle_tspec_ac_params(sdata); 4415 4416 /* finally clear all the data */ 4417 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4418 4419 return 0; 4420 } 4421 4422 return -ENOENT; 4423 } 4424 4425 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4426 u8 inst_id, 4427 enum nl80211_nan_func_term_reason reason, 4428 gfp_t gfp) 4429 { 4430 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4431 struct cfg80211_nan_func *func; 4432 u64 cookie; 4433 4434 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4435 return; 4436 4437 spin_lock_bh(&sdata->u.nan.func_lock); 4438 4439 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4440 if (WARN_ON(!func)) { 4441 spin_unlock_bh(&sdata->u.nan.func_lock); 4442 return; 4443 } 4444 4445 cookie = func->cookie; 4446 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4447 4448 spin_unlock_bh(&sdata->u.nan.func_lock); 4449 4450 cfg80211_free_nan_func(func); 4451 4452 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4453 reason, cookie, gfp); 4454 } 4455 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4456 4457 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4458 struct cfg80211_nan_match_params *match, 4459 gfp_t gfp) 4460 { 4461 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4462 struct cfg80211_nan_func *func; 4463 4464 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4465 return; 4466 4467 spin_lock_bh(&sdata->u.nan.func_lock); 4468 4469 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4470 if (WARN_ON(!func)) { 4471 spin_unlock_bh(&sdata->u.nan.func_lock); 4472 return; 4473 } 4474 match->cookie = func->cookie; 4475 4476 spin_unlock_bh(&sdata->u.nan.func_lock); 4477 4478 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4479 } 4480 EXPORT_SYMBOL(ieee80211_nan_func_match); 4481 4482 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4483 struct net_device *dev, 4484 const bool enabled) 4485 { 4486 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4487 4488 sdata->u.ap.multicast_to_unicast = enabled; 4489 4490 return 0; 4491 } 4492 4493 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4494 struct txq_info *txqi) 4495 { 4496 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4497 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4498 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4499 } 4500 4501 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4502 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4503 txqstats->backlog_packets = txqi->tin.backlog_packets; 4504 } 4505 4506 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4507 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4508 txqstats->flows = txqi->tin.flows; 4509 } 4510 4511 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4512 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4513 txqstats->drops = txqi->cstats.drop_count; 4514 } 4515 4516 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4517 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4518 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4519 } 4520 4521 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4522 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4523 txqstats->overlimit = txqi->tin.overlimit; 4524 } 4525 4526 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4527 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4528 txqstats->collisions = txqi->tin.collisions; 4529 } 4530 4531 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4532 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4533 txqstats->tx_bytes = txqi->tin.tx_bytes; 4534 } 4535 4536 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4537 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4538 txqstats->tx_packets = txqi->tin.tx_packets; 4539 } 4540 } 4541 4542 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4543 struct wireless_dev *wdev, 4544 struct cfg80211_txq_stats *txqstats) 4545 { 4546 struct ieee80211_local *local = wiphy_priv(wiphy); 4547 struct ieee80211_sub_if_data *sdata; 4548 int ret = 0; 4549 4550 spin_lock_bh(&local->fq.lock); 4551 rcu_read_lock(); 4552 4553 if (wdev) { 4554 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4555 if (!sdata->vif.txq) { 4556 ret = 1; 4557 goto out; 4558 } 4559 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4560 } else { 4561 /* phy stats */ 4562 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4563 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4564 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4565 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4566 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4567 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4568 txqstats->backlog_packets = local->fq.backlog; 4569 txqstats->backlog_bytes = local->fq.memory_usage; 4570 txqstats->overlimit = local->fq.overlimit; 4571 txqstats->overmemory = local->fq.overmemory; 4572 txqstats->collisions = local->fq.collisions; 4573 txqstats->max_flows = local->fq.flows_cnt; 4574 } 4575 4576 out: 4577 rcu_read_unlock(); 4578 spin_unlock_bh(&local->fq.lock); 4579 4580 return ret; 4581 } 4582 4583 static int 4584 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4585 struct net_device *dev, 4586 struct cfg80211_ftm_responder_stats *ftm_stats) 4587 { 4588 struct ieee80211_local *local = wiphy_priv(wiphy); 4589 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4590 4591 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4592 } 4593 4594 static int 4595 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4596 struct cfg80211_pmsr_request *request) 4597 { 4598 struct ieee80211_local *local = wiphy_priv(wiphy); 4599 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4600 4601 return drv_start_pmsr(local, sdata, request); 4602 } 4603 4604 static void 4605 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4606 struct cfg80211_pmsr_request *request) 4607 { 4608 struct ieee80211_local *local = wiphy_priv(wiphy); 4609 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4610 4611 return drv_abort_pmsr(local, sdata, request); 4612 } 4613 4614 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4615 struct net_device *dev, 4616 struct cfg80211_tid_config *tid_conf) 4617 { 4618 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4619 struct sta_info *sta; 4620 4621 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4622 4623 if (!sdata->local->ops->set_tid_config) 4624 return -EOPNOTSUPP; 4625 4626 if (!tid_conf->peer) 4627 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4628 4629 sta = sta_info_get_bss(sdata, tid_conf->peer); 4630 if (!sta) 4631 return -ENOENT; 4632 4633 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4634 } 4635 4636 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4637 struct net_device *dev, 4638 const u8 *peer, u8 tids) 4639 { 4640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4641 struct sta_info *sta; 4642 4643 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4644 4645 if (!sdata->local->ops->reset_tid_config) 4646 return -EOPNOTSUPP; 4647 4648 if (!peer) 4649 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4650 4651 sta = sta_info_get_bss(sdata, peer); 4652 if (!sta) 4653 return -ENOENT; 4654 4655 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4656 } 4657 4658 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4659 struct cfg80211_sar_specs *sar) 4660 { 4661 struct ieee80211_local *local = wiphy_priv(wiphy); 4662 4663 if (!local->ops->set_sar_specs) 4664 return -EOPNOTSUPP; 4665 4666 return local->ops->set_sar_specs(&local->hw, sar); 4667 } 4668 4669 static int 4670 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4671 u64 *changed) 4672 { 4673 struct ieee80211_sub_if_data *sdata = link->sdata; 4674 4675 switch (sdata->vif.type) { 4676 case NL80211_IFTYPE_AP: { 4677 int ret; 4678 4679 if (!link->u.ap.next_beacon) 4680 return -EINVAL; 4681 4682 ret = ieee80211_assign_beacon(sdata, link, 4683 link->u.ap.next_beacon, 4684 NULL, NULL, changed); 4685 ieee80211_free_next_beacon(link); 4686 4687 if (ret < 0) 4688 return ret; 4689 4690 break; 4691 } 4692 default: 4693 WARN_ON_ONCE(1); 4694 return -EINVAL; 4695 } 4696 4697 return 0; 4698 } 4699 4700 static int 4701 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4702 struct cfg80211_color_change_settings *params, 4703 u64 *changed) 4704 { 4705 struct ieee80211_sub_if_data *sdata = link->sdata; 4706 struct ieee80211_color_change_settings color_change = {}; 4707 int err; 4708 4709 switch (sdata->vif.type) { 4710 case NL80211_IFTYPE_AP: 4711 link->u.ap.next_beacon = 4712 cfg80211_beacon_dup(¶ms->beacon_next); 4713 if (!link->u.ap.next_beacon) 4714 return -ENOMEM; 4715 4716 if (params->count <= 1) 4717 break; 4718 4719 color_change.counter_offset_beacon = 4720 params->counter_offset_beacon; 4721 color_change.counter_offset_presp = 4722 params->counter_offset_presp; 4723 color_change.count = params->count; 4724 4725 err = ieee80211_assign_beacon(sdata, link, 4726 ¶ms->beacon_color_change, 4727 NULL, &color_change, changed); 4728 if (err < 0) { 4729 ieee80211_free_next_beacon(link); 4730 return err; 4731 } 4732 break; 4733 default: 4734 return -EOPNOTSUPP; 4735 } 4736 4737 return 0; 4738 } 4739 4740 static void 4741 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4742 u8 color, int enable, u64 changed) 4743 { 4744 struct ieee80211_sub_if_data *sdata = link->sdata; 4745 4746 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4747 4748 link->conf->he_bss_color.color = color; 4749 link->conf->he_bss_color.enabled = enable; 4750 changed |= BSS_CHANGED_HE_BSS_COLOR; 4751 4752 ieee80211_link_info_change_notify(sdata, link, changed); 4753 4754 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4755 struct ieee80211_sub_if_data *child; 4756 4757 list_for_each_entry(child, &sdata->local->interfaces, list) { 4758 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4759 child->vif.bss_conf.he_bss_color.color = color; 4760 child->vif.bss_conf.he_bss_color.enabled = enable; 4761 ieee80211_link_info_change_notify(child, 4762 &child->deflink, 4763 BSS_CHANGED_HE_BSS_COLOR); 4764 } 4765 } 4766 } 4767 } 4768 4769 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4770 { 4771 struct ieee80211_sub_if_data *sdata = link->sdata; 4772 struct ieee80211_local *local = sdata->local; 4773 u64 changed = 0; 4774 int err; 4775 4776 lockdep_assert_wiphy(local->hw.wiphy); 4777 4778 link->conf->color_change_active = false; 4779 4780 err = ieee80211_set_after_color_change_beacon(link, &changed); 4781 if (err) { 4782 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4783 return err; 4784 } 4785 4786 ieee80211_color_change_bss_config_notify(link, 4787 link->conf->color_change_color, 4788 1, changed); 4789 cfg80211_color_change_notify(sdata->dev, link->link_id); 4790 4791 return 0; 4792 } 4793 4794 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4795 struct wiphy_work *work) 4796 { 4797 struct ieee80211_link_data *link = 4798 container_of(work, struct ieee80211_link_data, 4799 color_change_finalize_work); 4800 struct ieee80211_sub_if_data *sdata = link->sdata; 4801 struct ieee80211_bss_conf *link_conf = link->conf; 4802 struct ieee80211_local *local = sdata->local; 4803 4804 lockdep_assert_wiphy(local->hw.wiphy); 4805 4806 /* AP might have been stopped while waiting for the lock. */ 4807 if (!link_conf->color_change_active) 4808 return; 4809 4810 if (!ieee80211_sdata_running(sdata)) 4811 return; 4812 4813 ieee80211_color_change_finalize(link); 4814 } 4815 4816 void ieee80211_color_collision_detection_work(struct work_struct *work) 4817 { 4818 struct delayed_work *delayed_work = to_delayed_work(work); 4819 struct ieee80211_link_data *link = 4820 container_of(delayed_work, struct ieee80211_link_data, 4821 color_collision_detect_work); 4822 struct ieee80211_sub_if_data *sdata = link->sdata; 4823 4824 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 4825 link->link_id); 4826 } 4827 4828 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 4829 { 4830 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4831 struct ieee80211_link_data *link; 4832 4833 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4834 return; 4835 4836 rcu_read_lock(); 4837 4838 link = rcu_dereference(sdata->link[link_id]); 4839 if (WARN_ON(!link)) { 4840 rcu_read_unlock(); 4841 return; 4842 } 4843 4844 wiphy_work_queue(sdata->local->hw.wiphy, 4845 &link->color_change_finalize_work); 4846 4847 rcu_read_unlock(); 4848 } 4849 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4850 4851 void 4852 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4853 u64 color_bitmap, u8 link_id) 4854 { 4855 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4856 struct ieee80211_link_data *link; 4857 4858 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4859 return; 4860 4861 rcu_read_lock(); 4862 4863 link = rcu_dereference(sdata->link[link_id]); 4864 if (WARN_ON(!link)) { 4865 rcu_read_unlock(); 4866 return; 4867 } 4868 4869 if (link->conf->color_change_active || link->conf->csa_active) { 4870 rcu_read_unlock(); 4871 return; 4872 } 4873 4874 if (delayed_work_pending(&link->color_collision_detect_work)) { 4875 rcu_read_unlock(); 4876 return; 4877 } 4878 4879 link->color_bitmap = color_bitmap; 4880 /* queue the color collision detection event every 500 ms in order to 4881 * avoid sending too much netlink messages to userspace. 4882 */ 4883 ieee80211_queue_delayed_work(&sdata->local->hw, 4884 &link->color_collision_detect_work, 4885 msecs_to_jiffies(500)); 4886 4887 rcu_read_unlock(); 4888 } 4889 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4890 4891 static int 4892 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4893 struct cfg80211_color_change_settings *params) 4894 { 4895 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4896 struct ieee80211_local *local = sdata->local; 4897 struct ieee80211_bss_conf *link_conf; 4898 struct ieee80211_link_data *link; 4899 u8 link_id = params->link_id; 4900 u64 changed = 0; 4901 int err; 4902 4903 lockdep_assert_wiphy(local->hw.wiphy); 4904 4905 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4906 return -EINVAL; 4907 4908 link = wiphy_dereference(wiphy, sdata->link[link_id]); 4909 if (!link) 4910 return -ENOLINK; 4911 4912 link_conf = link->conf; 4913 4914 if (link_conf->nontransmitted) 4915 return -EINVAL; 4916 4917 /* don't allow another color change if one is already active or if csa 4918 * is active 4919 */ 4920 if (link_conf->color_change_active || link_conf->csa_active) { 4921 err = -EBUSY; 4922 goto out; 4923 } 4924 4925 err = ieee80211_set_color_change_beacon(link, params, &changed); 4926 if (err) 4927 goto out; 4928 4929 link_conf->color_change_active = true; 4930 link_conf->color_change_color = params->color; 4931 4932 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 4933 4934 if (changed) 4935 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 4936 else 4937 /* if the beacon didn't change, we can finalize immediately */ 4938 ieee80211_color_change_finalize(link); 4939 4940 out: 4941 4942 return err; 4943 } 4944 4945 static int 4946 ieee80211_set_radar_background(struct wiphy *wiphy, 4947 struct cfg80211_chan_def *chandef) 4948 { 4949 struct ieee80211_local *local = wiphy_priv(wiphy); 4950 4951 if (!local->ops->set_radar_background) 4952 return -EOPNOTSUPP; 4953 4954 return local->ops->set_radar_background(&local->hw, chandef); 4955 } 4956 4957 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4958 struct wireless_dev *wdev, 4959 unsigned int link_id) 4960 { 4961 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4962 4963 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4964 4965 if (wdev->use_4addr) 4966 return -EOPNOTSUPP; 4967 4968 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4969 } 4970 4971 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4972 struct wireless_dev *wdev, 4973 unsigned int link_id) 4974 { 4975 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4976 4977 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4978 4979 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4980 } 4981 4982 static int sta_add_link_station(struct ieee80211_local *local, 4983 struct ieee80211_sub_if_data *sdata, 4984 struct link_station_parameters *params) 4985 { 4986 struct sta_info *sta; 4987 int ret; 4988 4989 sta = sta_info_get_bss(sdata, params->mld_mac); 4990 if (!sta) 4991 return -ENOENT; 4992 4993 if (!sta->sta.valid_links) 4994 return -EINVAL; 4995 4996 if (sta->sta.valid_links & BIT(params->link_id)) 4997 return -EALREADY; 4998 4999 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5000 if (ret) 5001 return ret; 5002 5003 ret = sta_link_apply_parameters(local, sta, true, params); 5004 if (ret) { 5005 ieee80211_sta_free_link(sta, params->link_id); 5006 return ret; 5007 } 5008 5009 /* ieee80211_sta_activate_link frees the link upon failure */ 5010 return ieee80211_sta_activate_link(sta, params->link_id); 5011 } 5012 5013 static int 5014 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5015 struct link_station_parameters *params) 5016 { 5017 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5018 struct ieee80211_local *local = wiphy_priv(wiphy); 5019 5020 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5021 5022 return sta_add_link_station(local, sdata, params); 5023 } 5024 5025 static int sta_mod_link_station(struct ieee80211_local *local, 5026 struct ieee80211_sub_if_data *sdata, 5027 struct link_station_parameters *params) 5028 { 5029 struct sta_info *sta; 5030 5031 sta = sta_info_get_bss(sdata, params->mld_mac); 5032 if (!sta) 5033 return -ENOENT; 5034 5035 if (!(sta->sta.valid_links & BIT(params->link_id))) 5036 return -EINVAL; 5037 5038 return sta_link_apply_parameters(local, sta, false, params); 5039 } 5040 5041 static int 5042 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5043 struct link_station_parameters *params) 5044 { 5045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5046 struct ieee80211_local *local = wiphy_priv(wiphy); 5047 5048 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5049 5050 return sta_mod_link_station(local, sdata, params); 5051 } 5052 5053 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 5054 struct link_station_del_parameters *params) 5055 { 5056 struct sta_info *sta; 5057 5058 sta = sta_info_get_bss(sdata, params->mld_mac); 5059 if (!sta) 5060 return -ENOENT; 5061 5062 if (!(sta->sta.valid_links & BIT(params->link_id))) 5063 return -EINVAL; 5064 5065 /* must not create a STA without links */ 5066 if (sta->sta.valid_links == BIT(params->link_id)) 5067 return -EINVAL; 5068 5069 ieee80211_sta_remove_link(sta, params->link_id); 5070 5071 return 0; 5072 } 5073 5074 static int 5075 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5076 struct link_station_del_parameters *params) 5077 { 5078 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5079 5080 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5081 5082 return sta_del_link_station(sdata, params); 5083 } 5084 5085 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5086 struct net_device *dev, 5087 struct cfg80211_set_hw_timestamp *hwts) 5088 { 5089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5090 struct ieee80211_local *local = sdata->local; 5091 5092 if (!local->ops->set_hw_timestamp) 5093 return -EOPNOTSUPP; 5094 5095 if (!check_sdata_in_driver(sdata)) 5096 return -EIO; 5097 5098 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5099 } 5100 5101 static int 5102 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5103 struct cfg80211_ttlm_params *params) 5104 { 5105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5106 5107 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5108 5109 return ieee80211_req_neg_ttlm(sdata, params); 5110 } 5111 5112 const struct cfg80211_ops mac80211_config_ops = { 5113 .add_virtual_intf = ieee80211_add_iface, 5114 .del_virtual_intf = ieee80211_del_iface, 5115 .change_virtual_intf = ieee80211_change_iface, 5116 .start_p2p_device = ieee80211_start_p2p_device, 5117 .stop_p2p_device = ieee80211_stop_p2p_device, 5118 .add_key = ieee80211_add_key, 5119 .del_key = ieee80211_del_key, 5120 .get_key = ieee80211_get_key, 5121 .set_default_key = ieee80211_config_default_key, 5122 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5123 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5124 .start_ap = ieee80211_start_ap, 5125 .change_beacon = ieee80211_change_beacon, 5126 .stop_ap = ieee80211_stop_ap, 5127 .add_station = ieee80211_add_station, 5128 .del_station = ieee80211_del_station, 5129 .change_station = ieee80211_change_station, 5130 .get_station = ieee80211_get_station, 5131 .dump_station = ieee80211_dump_station, 5132 .dump_survey = ieee80211_dump_survey, 5133 #ifdef CONFIG_MAC80211_MESH 5134 .add_mpath = ieee80211_add_mpath, 5135 .del_mpath = ieee80211_del_mpath, 5136 .change_mpath = ieee80211_change_mpath, 5137 .get_mpath = ieee80211_get_mpath, 5138 .dump_mpath = ieee80211_dump_mpath, 5139 .get_mpp = ieee80211_get_mpp, 5140 .dump_mpp = ieee80211_dump_mpp, 5141 .update_mesh_config = ieee80211_update_mesh_config, 5142 .get_mesh_config = ieee80211_get_mesh_config, 5143 .join_mesh = ieee80211_join_mesh, 5144 .leave_mesh = ieee80211_leave_mesh, 5145 #endif 5146 .join_ocb = ieee80211_join_ocb, 5147 .leave_ocb = ieee80211_leave_ocb, 5148 .change_bss = ieee80211_change_bss, 5149 .inform_bss = ieee80211_inform_bss, 5150 .set_txq_params = ieee80211_set_txq_params, 5151 .set_monitor_channel = ieee80211_set_monitor_channel, 5152 .suspend = ieee80211_suspend, 5153 .resume = ieee80211_resume, 5154 .scan = ieee80211_scan, 5155 .abort_scan = ieee80211_abort_scan, 5156 .sched_scan_start = ieee80211_sched_scan_start, 5157 .sched_scan_stop = ieee80211_sched_scan_stop, 5158 .auth = ieee80211_auth, 5159 .assoc = ieee80211_assoc, 5160 .deauth = ieee80211_deauth, 5161 .disassoc = ieee80211_disassoc, 5162 .join_ibss = ieee80211_join_ibss, 5163 .leave_ibss = ieee80211_leave_ibss, 5164 .set_mcast_rate = ieee80211_set_mcast_rate, 5165 .set_wiphy_params = ieee80211_set_wiphy_params, 5166 .set_tx_power = ieee80211_set_tx_power, 5167 .get_tx_power = ieee80211_get_tx_power, 5168 .rfkill_poll = ieee80211_rfkill_poll, 5169 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5170 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5171 .set_power_mgmt = ieee80211_set_power_mgmt, 5172 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5173 .remain_on_channel = ieee80211_remain_on_channel, 5174 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5175 .mgmt_tx = ieee80211_mgmt_tx, 5176 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5177 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5178 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5179 .update_mgmt_frame_registrations = 5180 ieee80211_update_mgmt_frame_registrations, 5181 .set_antenna = ieee80211_set_antenna, 5182 .get_antenna = ieee80211_get_antenna, 5183 .set_rekey_data = ieee80211_set_rekey_data, 5184 .tdls_oper = ieee80211_tdls_oper, 5185 .tdls_mgmt = ieee80211_tdls_mgmt, 5186 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5187 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5188 .probe_client = ieee80211_probe_client, 5189 .set_noack_map = ieee80211_set_noack_map, 5190 #ifdef CONFIG_PM 5191 .set_wakeup = ieee80211_set_wakeup, 5192 #endif 5193 .get_channel = ieee80211_cfg_get_channel, 5194 .start_radar_detection = ieee80211_start_radar_detection, 5195 .end_cac = ieee80211_end_cac, 5196 .channel_switch = ieee80211_channel_switch, 5197 .set_qos_map = ieee80211_set_qos_map, 5198 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5199 .add_tx_ts = ieee80211_add_tx_ts, 5200 .del_tx_ts = ieee80211_del_tx_ts, 5201 .start_nan = ieee80211_start_nan, 5202 .stop_nan = ieee80211_stop_nan, 5203 .nan_change_conf = ieee80211_nan_change_conf, 5204 .add_nan_func = ieee80211_add_nan_func, 5205 .del_nan_func = ieee80211_del_nan_func, 5206 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5207 .tx_control_port = ieee80211_tx_control_port, 5208 .get_txq_stats = ieee80211_get_txq_stats, 5209 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5210 .start_pmsr = ieee80211_start_pmsr, 5211 .abort_pmsr = ieee80211_abort_pmsr, 5212 .probe_mesh_link = ieee80211_probe_mesh_link, 5213 .set_tid_config = ieee80211_set_tid_config, 5214 .reset_tid_config = ieee80211_reset_tid_config, 5215 .set_sar_specs = ieee80211_set_sar_specs, 5216 .color_change = ieee80211_color_change, 5217 .set_radar_background = ieee80211_set_radar_background, 5218 .add_intf_link = ieee80211_add_intf_link, 5219 .del_intf_link = ieee80211_del_intf_link, 5220 .add_link_station = ieee80211_add_link_station, 5221 .mod_link_station = ieee80211_mod_link_station, 5222 .del_link_station = ieee80211_del_link_station, 5223 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5224 .set_ttlm = ieee80211_set_ttlm, 5225 }; 5226