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 int ret = 0; 890 891 lockdep_assert_wiphy(local->hw.wiphy); 892 893 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 894 return 0; 895 896 if (local->use_chanctx) { 897 sdata = wiphy_dereference(local->hw.wiphy, 898 local->monitor_sdata); 899 if (sdata) { 900 ieee80211_link_release_channel(&sdata->deflink); 901 ret = ieee80211_link_use_channel(&sdata->deflink, 902 chandef, 903 IEEE80211_CHANCTX_EXCLUSIVE); 904 } 905 } else { 906 if (local->open_count == local->monitors) { 907 local->_oper_chandef = *chandef; 908 ieee80211_hw_config(local, 0); 909 } 910 } 911 912 if (ret == 0) 913 local->monitor_chandef = *chandef; 914 915 return ret; 916 } 917 918 static int 919 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 920 const u8 *resp, size_t resp_len, 921 const struct ieee80211_csa_settings *csa, 922 const struct ieee80211_color_change_settings *cca, 923 struct ieee80211_link_data *link) 924 { 925 struct probe_resp *new, *old; 926 927 if (!resp || !resp_len) 928 return 1; 929 930 old = sdata_dereference(link->u.ap.probe_resp, sdata); 931 932 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 933 if (!new) 934 return -ENOMEM; 935 936 new->len = resp_len; 937 memcpy(new->data, resp, resp_len); 938 939 if (csa) 940 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 941 csa->n_counter_offsets_presp * 942 sizeof(new->cntdwn_counter_offsets[0])); 943 else if (cca) 944 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 945 946 rcu_assign_pointer(link->u.ap.probe_resp, new); 947 if (old) 948 kfree_rcu(old, rcu_head); 949 950 return 0; 951 } 952 953 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 954 struct cfg80211_fils_discovery *params, 955 struct ieee80211_link_data *link, 956 struct ieee80211_bss_conf *link_conf) 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 return BSS_CHANGED_FILS_DISCOVERY; 984 } 985 986 static int 987 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 988 struct cfg80211_unsol_bcast_probe_resp *params, 989 struct ieee80211_link_data *link, 990 struct ieee80211_bss_conf *link_conf, 991 u64 *changed) 992 { 993 struct unsol_bcast_probe_resp_data *new, *old = NULL; 994 995 if (!params->update) 996 return 0; 997 998 link_conf->unsol_bcast_probe_resp_interval = params->interval; 999 1000 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1001 if (old) 1002 kfree_rcu(old, rcu_head); 1003 1004 if (params->tmpl && params->tmpl_len) { 1005 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1006 if (!new) 1007 return -ENOMEM; 1008 new->len = params->tmpl_len; 1009 memcpy(new->data, params->tmpl, params->tmpl_len); 1010 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1011 } else { 1012 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1013 } 1014 1015 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1016 return 0; 1017 } 1018 1019 static int ieee80211_set_ftm_responder_params( 1020 struct ieee80211_sub_if_data *sdata, 1021 const u8 *lci, size_t lci_len, 1022 const u8 *civicloc, size_t civicloc_len, 1023 struct ieee80211_bss_conf *link_conf) 1024 { 1025 struct ieee80211_ftm_responder_params *new, *old; 1026 u8 *pos; 1027 int len; 1028 1029 if (!lci_len && !civicloc_len) 1030 return 0; 1031 1032 old = link_conf->ftmr_params; 1033 len = lci_len + civicloc_len; 1034 1035 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1036 if (!new) 1037 return -ENOMEM; 1038 1039 pos = (u8 *)(new + 1); 1040 if (lci_len) { 1041 new->lci_len = lci_len; 1042 new->lci = pos; 1043 memcpy(pos, lci, lci_len); 1044 pos += lci_len; 1045 } 1046 1047 if (civicloc_len) { 1048 new->civicloc_len = civicloc_len; 1049 new->civicloc = pos; 1050 memcpy(pos, civicloc, civicloc_len); 1051 pos += civicloc_len; 1052 } 1053 1054 link_conf->ftmr_params = new; 1055 kfree(old); 1056 1057 return 0; 1058 } 1059 1060 static int 1061 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1062 struct cfg80211_mbssid_elems *src) 1063 { 1064 int i, offset = 0; 1065 1066 for (i = 0; i < src->cnt; i++) { 1067 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1068 dst->elem[i].len = src->elem[i].len; 1069 dst->elem[i].data = pos + offset; 1070 offset += dst->elem[i].len; 1071 } 1072 dst->cnt = src->cnt; 1073 1074 return offset; 1075 } 1076 1077 static int 1078 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1079 struct cfg80211_rnr_elems *src) 1080 { 1081 int i, offset = 0; 1082 1083 for (i = 0; i < src->cnt; i++) { 1084 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1085 dst->elem[i].len = src->elem[i].len; 1086 dst->elem[i].data = pos + offset; 1087 offset += dst->elem[i].len; 1088 } 1089 dst->cnt = src->cnt; 1090 1091 return offset; 1092 } 1093 1094 static int 1095 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1096 struct ieee80211_link_data *link, 1097 struct cfg80211_beacon_data *params, 1098 const struct ieee80211_csa_settings *csa, 1099 const struct ieee80211_color_change_settings *cca, 1100 u64 *changed) 1101 { 1102 struct cfg80211_mbssid_elems *mbssid = NULL; 1103 struct cfg80211_rnr_elems *rnr = NULL; 1104 struct beacon_data *new, *old; 1105 int new_head_len, new_tail_len; 1106 int size, err; 1107 u64 _changed = BSS_CHANGED_BEACON; 1108 struct ieee80211_bss_conf *link_conf = link->conf; 1109 1110 old = sdata_dereference(link->u.ap.beacon, sdata); 1111 1112 /* Need to have a beacon head if we don't have one yet */ 1113 if (!params->head && !old) 1114 return -EINVAL; 1115 1116 /* new or old head? */ 1117 if (params->head) 1118 new_head_len = params->head_len; 1119 else 1120 new_head_len = old->head_len; 1121 1122 /* new or old tail? */ 1123 if (params->tail || !old) 1124 /* params->tail_len will be zero for !params->tail */ 1125 new_tail_len = params->tail_len; 1126 else 1127 new_tail_len = old->tail_len; 1128 1129 size = sizeof(*new) + new_head_len + new_tail_len; 1130 1131 /* new or old multiple BSSID elements? */ 1132 if (params->mbssid_ies) { 1133 mbssid = params->mbssid_ies; 1134 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1135 if (params->rnr_ies) { 1136 rnr = params->rnr_ies; 1137 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1138 } 1139 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1140 mbssid->cnt); 1141 } else if (old && old->mbssid_ies) { 1142 mbssid = old->mbssid_ies; 1143 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1144 if (old && old->rnr_ies) { 1145 rnr = old->rnr_ies; 1146 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1147 } 1148 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1149 mbssid->cnt); 1150 } 1151 1152 new = kzalloc(size, GFP_KERNEL); 1153 if (!new) 1154 return -ENOMEM; 1155 1156 /* start filling the new info now */ 1157 1158 /* 1159 * pointers go into the block we allocated, 1160 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1161 */ 1162 new->head = ((u8 *) new) + sizeof(*new); 1163 new->tail = new->head + new_head_len; 1164 new->head_len = new_head_len; 1165 new->tail_len = new_tail_len; 1166 /* copy in optional mbssid_ies */ 1167 if (mbssid) { 1168 u8 *pos = new->tail + new->tail_len; 1169 1170 new->mbssid_ies = (void *)pos; 1171 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1172 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1173 mbssid); 1174 if (rnr) { 1175 new->rnr_ies = (void *)pos; 1176 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1177 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1178 } 1179 /* update bssid_indicator */ 1180 link_conf->bssid_indicator = 1181 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1182 } 1183 1184 if (csa) { 1185 new->cntdwn_current_counter = csa->count; 1186 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1187 csa->n_counter_offsets_beacon * 1188 sizeof(new->cntdwn_counter_offsets[0])); 1189 } else if (cca) { 1190 new->cntdwn_current_counter = cca->count; 1191 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1192 } 1193 1194 /* copy in head */ 1195 if (params->head) 1196 memcpy(new->head, params->head, new_head_len); 1197 else 1198 memcpy(new->head, old->head, new_head_len); 1199 1200 /* copy in optional tail */ 1201 if (params->tail) 1202 memcpy(new->tail, params->tail, new_tail_len); 1203 else 1204 if (old) 1205 memcpy(new->tail, old->tail, new_tail_len); 1206 1207 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1208 params->probe_resp_len, csa, cca, link); 1209 if (err < 0) { 1210 kfree(new); 1211 return err; 1212 } 1213 if (err == 0) 1214 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1215 1216 if (params->ftm_responder != -1) { 1217 link_conf->ftm_responder = params->ftm_responder; 1218 err = ieee80211_set_ftm_responder_params(sdata, 1219 params->lci, 1220 params->lci_len, 1221 params->civicloc, 1222 params->civicloc_len, 1223 link_conf); 1224 1225 if (err < 0) { 1226 kfree(new); 1227 return err; 1228 } 1229 1230 _changed |= BSS_CHANGED_FTM_RESPONDER; 1231 } 1232 1233 rcu_assign_pointer(link->u.ap.beacon, new); 1234 sdata->u.ap.active = true; 1235 1236 if (old) 1237 kfree_rcu(old, rcu_head); 1238 1239 *changed |= _changed; 1240 return 0; 1241 } 1242 1243 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1244 struct cfg80211_ap_settings *params) 1245 { 1246 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1247 struct ieee80211_local *local = sdata->local; 1248 struct beacon_data *old; 1249 struct ieee80211_sub_if_data *vlan; 1250 u64 changed = BSS_CHANGED_BEACON_INT | 1251 BSS_CHANGED_BEACON_ENABLED | 1252 BSS_CHANGED_BEACON | 1253 BSS_CHANGED_P2P_PS | 1254 BSS_CHANGED_TXPOWER | 1255 BSS_CHANGED_TWT; 1256 int i, err; 1257 int prev_beacon_int; 1258 unsigned int link_id = params->beacon.link_id; 1259 struct ieee80211_link_data *link; 1260 struct ieee80211_bss_conf *link_conf; 1261 1262 lockdep_assert_wiphy(local->hw.wiphy); 1263 1264 link = sdata_dereference(sdata->link[link_id], sdata); 1265 if (!link) 1266 return -ENOLINK; 1267 1268 link_conf = link->conf; 1269 1270 old = sdata_dereference(link->u.ap.beacon, sdata); 1271 if (old) 1272 return -EALREADY; 1273 1274 if (params->smps_mode != NL80211_SMPS_OFF) 1275 return -EOPNOTSUPP; 1276 1277 link->smps_mode = IEEE80211_SMPS_OFF; 1278 1279 link->needed_rx_chains = sdata->local->rx_chains; 1280 1281 prev_beacon_int = link_conf->beacon_int; 1282 link_conf->beacon_int = params->beacon_interval; 1283 1284 if (params->ht_cap) 1285 link_conf->ht_ldpc = 1286 params->ht_cap->cap_info & 1287 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1288 1289 if (params->vht_cap) { 1290 link_conf->vht_ldpc = 1291 params->vht_cap->vht_cap_info & 1292 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1293 link_conf->vht_su_beamformer = 1294 params->vht_cap->vht_cap_info & 1295 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1296 link_conf->vht_su_beamformee = 1297 params->vht_cap->vht_cap_info & 1298 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1299 link_conf->vht_mu_beamformer = 1300 params->vht_cap->vht_cap_info & 1301 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1302 link_conf->vht_mu_beamformee = 1303 params->vht_cap->vht_cap_info & 1304 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1305 } 1306 1307 if (params->he_cap && params->he_oper) { 1308 link_conf->he_support = true; 1309 link_conf->htc_trig_based_pkt_ext = 1310 le32_get_bits(params->he_oper->he_oper_params, 1311 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1312 link_conf->frame_time_rts_th = 1313 le32_get_bits(params->he_oper->he_oper_params, 1314 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1315 changed |= BSS_CHANGED_HE_OBSS_PD; 1316 1317 if (params->beacon.he_bss_color.enabled) 1318 changed |= BSS_CHANGED_HE_BSS_COLOR; 1319 } 1320 1321 if (params->he_cap) { 1322 link_conf->he_ldpc = 1323 params->he_cap->phy_cap_info[1] & 1324 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1325 link_conf->he_su_beamformer = 1326 params->he_cap->phy_cap_info[3] & 1327 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1328 link_conf->he_su_beamformee = 1329 params->he_cap->phy_cap_info[4] & 1330 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1331 link_conf->he_mu_beamformer = 1332 params->he_cap->phy_cap_info[4] & 1333 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1334 link_conf->he_full_ul_mumimo = 1335 params->he_cap->phy_cap_info[2] & 1336 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1337 } 1338 1339 if (params->eht_cap) { 1340 if (!link_conf->he_support) 1341 return -EOPNOTSUPP; 1342 1343 link_conf->eht_support = true; 1344 link_conf->eht_puncturing = params->punct_bitmap; 1345 changed |= BSS_CHANGED_EHT_PUNCTURING; 1346 1347 link_conf->eht_su_beamformer = 1348 params->eht_cap->fixed.phy_cap_info[0] & 1349 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1350 link_conf->eht_su_beamformee = 1351 params->eht_cap->fixed.phy_cap_info[0] & 1352 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1353 link_conf->eht_mu_beamformer = 1354 params->eht_cap->fixed.phy_cap_info[7] & 1355 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1356 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1357 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1358 } else { 1359 link_conf->eht_su_beamformer = false; 1360 link_conf->eht_su_beamformee = false; 1361 link_conf->eht_mu_beamformer = false; 1362 } 1363 1364 if (sdata->vif.type == NL80211_IFTYPE_AP && 1365 params->mbssid_config.tx_wdev) { 1366 err = ieee80211_set_ap_mbssid_options(sdata, 1367 params->mbssid_config, 1368 link_conf); 1369 if (err) 1370 return err; 1371 } 1372 1373 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1374 IEEE80211_CHANCTX_SHARED); 1375 if (!err) 1376 ieee80211_link_copy_chanctx_to_vlans(link, false); 1377 if (err) { 1378 link_conf->beacon_int = prev_beacon_int; 1379 return err; 1380 } 1381 1382 /* 1383 * Apply control port protocol, this allows us to 1384 * not encrypt dynamic WEP control frames. 1385 */ 1386 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1387 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1388 sdata->control_port_over_nl80211 = 1389 params->crypto.control_port_over_nl80211; 1390 sdata->control_port_no_preauth = 1391 params->crypto.control_port_no_preauth; 1392 1393 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1394 vlan->control_port_protocol = 1395 params->crypto.control_port_ethertype; 1396 vlan->control_port_no_encrypt = 1397 params->crypto.control_port_no_encrypt; 1398 vlan->control_port_over_nl80211 = 1399 params->crypto.control_port_over_nl80211; 1400 vlan->control_port_no_preauth = 1401 params->crypto.control_port_no_preauth; 1402 } 1403 1404 link_conf->dtim_period = params->dtim_period; 1405 link_conf->enable_beacon = true; 1406 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1407 link_conf->twt_responder = params->twt_responder; 1408 link_conf->he_obss_pd = params->he_obss_pd; 1409 link_conf->he_bss_color = params->beacon.he_bss_color; 1410 sdata->vif.cfg.s1g = params->chandef.chan->band == 1411 NL80211_BAND_S1GHZ; 1412 1413 sdata->vif.cfg.ssid_len = params->ssid_len; 1414 if (params->ssid_len) 1415 memcpy(sdata->vif.cfg.ssid, params->ssid, 1416 params->ssid_len); 1417 link_conf->hidden_ssid = 1418 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1419 1420 memset(&link_conf->p2p_noa_attr, 0, 1421 sizeof(link_conf->p2p_noa_attr)); 1422 link_conf->p2p_noa_attr.oppps_ctwindow = 1423 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1424 if (params->p2p_opp_ps) 1425 link_conf->p2p_noa_attr.oppps_ctwindow |= 1426 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1427 1428 sdata->beacon_rate_set = false; 1429 if (wiphy_ext_feature_isset(local->hw.wiphy, 1430 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1431 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1432 sdata->beacon_rateidx_mask[i] = 1433 params->beacon_rate.control[i].legacy; 1434 if (sdata->beacon_rateidx_mask[i]) 1435 sdata->beacon_rate_set = true; 1436 } 1437 } 1438 1439 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1440 link_conf->beacon_tx_rate = params->beacon_rate; 1441 1442 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1443 &changed); 1444 if (err < 0) 1445 goto error; 1446 1447 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1448 link, link_conf); 1449 if (err < 0) 1450 goto error; 1451 changed |= err; 1452 1453 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1454 ¶ms->unsol_bcast_probe_resp, 1455 link, link_conf, &changed); 1456 if (err < 0) 1457 goto error; 1458 1459 err = drv_start_ap(sdata->local, sdata, link_conf); 1460 if (err) { 1461 old = sdata_dereference(link->u.ap.beacon, sdata); 1462 1463 if (old) 1464 kfree_rcu(old, rcu_head); 1465 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1466 sdata->u.ap.active = false; 1467 goto error; 1468 } 1469 1470 ieee80211_recalc_dtim(local, sdata); 1471 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1472 ieee80211_link_info_change_notify(sdata, link, changed); 1473 1474 netif_carrier_on(dev); 1475 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1476 netif_carrier_on(vlan->dev); 1477 1478 return 0; 1479 1480 error: 1481 ieee80211_link_release_channel(link); 1482 1483 return err; 1484 } 1485 1486 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1487 struct cfg80211_ap_update *params) 1488 1489 { 1490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1491 struct ieee80211_link_data *link; 1492 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1493 struct beacon_data *old; 1494 int err; 1495 struct ieee80211_bss_conf *link_conf; 1496 u64 changed = 0; 1497 1498 lockdep_assert_wiphy(wiphy); 1499 1500 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1501 if (!link) 1502 return -ENOLINK; 1503 1504 link_conf = link->conf; 1505 1506 /* don't allow changing the beacon while a countdown is in place - offset 1507 * of channel switch counter may change 1508 */ 1509 if (link_conf->csa_active || link_conf->color_change_active) 1510 return -EBUSY; 1511 1512 old = sdata_dereference(link->u.ap.beacon, sdata); 1513 if (!old) 1514 return -ENOENT; 1515 1516 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1517 &changed); 1518 if (err < 0) 1519 return err; 1520 1521 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1522 link, link_conf); 1523 if (err < 0) 1524 return err; 1525 changed |= err; 1526 1527 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1528 ¶ms->unsol_bcast_probe_resp, 1529 link, link_conf, &changed); 1530 if (err < 0) 1531 return err; 1532 1533 if (beacon->he_bss_color_valid && 1534 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1535 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1536 changed |= BSS_CHANGED_HE_BSS_COLOR; 1537 } 1538 1539 ieee80211_link_info_change_notify(sdata, link, changed); 1540 return 0; 1541 } 1542 1543 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1544 { 1545 if (!link->u.ap.next_beacon) 1546 return; 1547 1548 kfree(link->u.ap.next_beacon->mbssid_ies); 1549 kfree(link->u.ap.next_beacon->rnr_ies); 1550 kfree(link->u.ap.next_beacon); 1551 link->u.ap.next_beacon = NULL; 1552 } 1553 1554 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1555 unsigned int link_id) 1556 { 1557 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1558 struct ieee80211_sub_if_data *vlan; 1559 struct ieee80211_local *local = sdata->local; 1560 struct beacon_data *old_beacon; 1561 struct probe_resp *old_probe_resp; 1562 struct fils_discovery_data *old_fils_discovery; 1563 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1564 struct cfg80211_chan_def chandef; 1565 struct ieee80211_link_data *link = 1566 sdata_dereference(sdata->link[link_id], sdata); 1567 struct ieee80211_bss_conf *link_conf = link->conf; 1568 1569 lockdep_assert_wiphy(local->hw.wiphy); 1570 1571 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1572 if (!old_beacon) 1573 return -ENOENT; 1574 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1575 sdata); 1576 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1577 sdata); 1578 old_unsol_bcast_probe_resp = 1579 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1580 sdata); 1581 1582 /* abort any running channel switch or color change */ 1583 link_conf->csa_active = false; 1584 link_conf->color_change_active = false; 1585 if (link->csa_block_tx) { 1586 ieee80211_wake_vif_queues(local, sdata, 1587 IEEE80211_QUEUE_STOP_REASON_CSA); 1588 link->csa_block_tx = false; 1589 } 1590 1591 ieee80211_free_next_beacon(link); 1592 1593 /* turn off carrier for this interface and dependent VLANs */ 1594 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1595 netif_carrier_off(vlan->dev); 1596 netif_carrier_off(dev); 1597 1598 /* remove beacon and probe response */ 1599 sdata->u.ap.active = false; 1600 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1601 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1602 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1603 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1604 kfree_rcu(old_beacon, rcu_head); 1605 if (old_probe_resp) 1606 kfree_rcu(old_probe_resp, rcu_head); 1607 if (old_fils_discovery) 1608 kfree_rcu(old_fils_discovery, rcu_head); 1609 if (old_unsol_bcast_probe_resp) 1610 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1611 1612 kfree(link_conf->ftmr_params); 1613 link_conf->ftmr_params = NULL; 1614 1615 sdata->vif.mbssid_tx_vif = NULL; 1616 link_conf->bssid_index = 0; 1617 link_conf->nontransmitted = false; 1618 link_conf->ema_ap = false; 1619 link_conf->bssid_indicator = 0; 1620 1621 __sta_info_flush(sdata, true); 1622 ieee80211_free_keys(sdata, true); 1623 1624 link_conf->enable_beacon = false; 1625 sdata->beacon_rate_set = false; 1626 sdata->vif.cfg.ssid_len = 0; 1627 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1628 ieee80211_link_info_change_notify(sdata, link, 1629 BSS_CHANGED_BEACON_ENABLED); 1630 1631 if (sdata->wdev.cac_started) { 1632 chandef = link_conf->chandef; 1633 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1634 cfg80211_cac_event(sdata->dev, &chandef, 1635 NL80211_RADAR_CAC_ABORTED, 1636 GFP_KERNEL); 1637 } 1638 1639 drv_stop_ap(sdata->local, sdata, link_conf); 1640 1641 /* free all potentially still buffered bcast frames */ 1642 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1643 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1644 1645 ieee80211_link_copy_chanctx_to_vlans(link, true); 1646 ieee80211_link_release_channel(link); 1647 1648 return 0; 1649 } 1650 1651 static int sta_apply_auth_flags(struct ieee80211_local *local, 1652 struct sta_info *sta, 1653 u32 mask, u32 set) 1654 { 1655 int ret; 1656 1657 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1658 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1659 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1660 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1661 if (ret) 1662 return ret; 1663 } 1664 1665 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1666 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1667 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1668 /* 1669 * When peer becomes associated, init rate control as 1670 * well. Some drivers require rate control initialized 1671 * before drv_sta_state() is called. 1672 */ 1673 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1674 rate_control_rate_init(sta); 1675 1676 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1677 if (ret) 1678 return ret; 1679 } 1680 1681 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1682 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1683 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1684 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1685 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1686 else 1687 ret = 0; 1688 if (ret) 1689 return ret; 1690 } 1691 1692 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1693 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1694 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1695 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1696 if (ret) 1697 return ret; 1698 } 1699 1700 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1701 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1702 test_sta_flag(sta, WLAN_STA_AUTH)) { 1703 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1704 if (ret) 1705 return ret; 1706 } 1707 1708 return 0; 1709 } 1710 1711 static void sta_apply_mesh_params(struct ieee80211_local *local, 1712 struct sta_info *sta, 1713 struct station_parameters *params) 1714 { 1715 #ifdef CONFIG_MAC80211_MESH 1716 struct ieee80211_sub_if_data *sdata = sta->sdata; 1717 u64 changed = 0; 1718 1719 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1720 switch (params->plink_state) { 1721 case NL80211_PLINK_ESTAB: 1722 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1723 changed = mesh_plink_inc_estab_count(sdata); 1724 sta->mesh->plink_state = params->plink_state; 1725 sta->mesh->aid = params->peer_aid; 1726 1727 ieee80211_mps_sta_status_update(sta); 1728 changed |= ieee80211_mps_set_sta_local_pm(sta, 1729 sdata->u.mesh.mshcfg.power_mode); 1730 1731 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1732 /* init at low value */ 1733 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1734 1735 break; 1736 case NL80211_PLINK_LISTEN: 1737 case NL80211_PLINK_BLOCKED: 1738 case NL80211_PLINK_OPN_SNT: 1739 case NL80211_PLINK_OPN_RCVD: 1740 case NL80211_PLINK_CNF_RCVD: 1741 case NL80211_PLINK_HOLDING: 1742 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1743 changed = mesh_plink_dec_estab_count(sdata); 1744 sta->mesh->plink_state = params->plink_state; 1745 1746 ieee80211_mps_sta_status_update(sta); 1747 changed |= ieee80211_mps_set_sta_local_pm(sta, 1748 NL80211_MESH_POWER_UNKNOWN); 1749 break; 1750 default: 1751 /* nothing */ 1752 break; 1753 } 1754 } 1755 1756 switch (params->plink_action) { 1757 case NL80211_PLINK_ACTION_NO_ACTION: 1758 /* nothing */ 1759 break; 1760 case NL80211_PLINK_ACTION_OPEN: 1761 changed |= mesh_plink_open(sta); 1762 break; 1763 case NL80211_PLINK_ACTION_BLOCK: 1764 changed |= mesh_plink_block(sta); 1765 break; 1766 } 1767 1768 if (params->local_pm) 1769 changed |= ieee80211_mps_set_sta_local_pm(sta, 1770 params->local_pm); 1771 1772 ieee80211_mbss_info_change_notify(sdata, changed); 1773 #endif 1774 } 1775 1776 static int sta_link_apply_parameters(struct ieee80211_local *local, 1777 struct sta_info *sta, bool new_link, 1778 struct link_station_parameters *params) 1779 { 1780 int ret = 0; 1781 struct ieee80211_supported_band *sband; 1782 struct ieee80211_sub_if_data *sdata = sta->sdata; 1783 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1784 struct ieee80211_link_data *link = 1785 sdata_dereference(sdata->link[link_id], sdata); 1786 struct link_sta_info *link_sta = 1787 rcu_dereference_protected(sta->link[link_id], 1788 lockdep_is_held(&local->hw.wiphy->mtx)); 1789 1790 /* 1791 * If there are no changes, then accept a link that exist, 1792 * unless it's a new link. 1793 */ 1794 if (params->link_id >= 0 && !new_link && 1795 !params->link_mac && !params->txpwr_set && 1796 !params->supported_rates_len && 1797 !params->ht_capa && !params->vht_capa && 1798 !params->he_capa && !params->eht_capa && 1799 !params->opmode_notif_used) 1800 return 0; 1801 1802 if (!link || !link_sta) 1803 return -EINVAL; 1804 1805 sband = ieee80211_get_link_sband(link); 1806 if (!sband) 1807 return -EINVAL; 1808 1809 if (params->link_mac) { 1810 if (new_link) { 1811 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1812 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1813 } else if (!ether_addr_equal(link_sta->addr, 1814 params->link_mac)) { 1815 return -EINVAL; 1816 } 1817 } else if (new_link) { 1818 return -EINVAL; 1819 } 1820 1821 if (params->txpwr_set) { 1822 link_sta->pub->txpwr.type = params->txpwr.type; 1823 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1824 link_sta->pub->txpwr.power = params->txpwr.power; 1825 ret = drv_sta_set_txpwr(local, sdata, sta); 1826 if (ret) 1827 return ret; 1828 } 1829 1830 if (params->supported_rates && 1831 params->supported_rates_len) { 1832 ieee80211_parse_bitrates(link->conf->chandef.width, 1833 sband, params->supported_rates, 1834 params->supported_rates_len, 1835 &link_sta->pub->supp_rates[sband->band]); 1836 } 1837 1838 if (params->ht_capa) 1839 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1840 params->ht_capa, link_sta); 1841 1842 /* VHT can override some HT caps such as the A-MSDU max length */ 1843 if (params->vht_capa) 1844 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1845 params->vht_capa, NULL, 1846 link_sta); 1847 1848 if (params->he_capa) 1849 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1850 (void *)params->he_capa, 1851 params->he_capa_len, 1852 (void *)params->he_6ghz_capa, 1853 link_sta); 1854 1855 if (params->he_capa && params->eht_capa) 1856 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1857 (u8 *)params->he_capa, 1858 params->he_capa_len, 1859 params->eht_capa, 1860 params->eht_capa_len, 1861 link_sta); 1862 1863 if (params->opmode_notif_used) { 1864 /* returned value is only needed for rc update, but the 1865 * rc isn't initialized here yet, so ignore it 1866 */ 1867 __ieee80211_vht_handle_opmode(sdata, link_sta, 1868 params->opmode_notif, 1869 sband->band); 1870 } 1871 1872 ieee80211_sta_set_rx_nss(link_sta); 1873 1874 return ret; 1875 } 1876 1877 static int sta_apply_parameters(struct ieee80211_local *local, 1878 struct sta_info *sta, 1879 struct station_parameters *params) 1880 { 1881 struct ieee80211_sub_if_data *sdata = sta->sdata; 1882 u32 mask, set; 1883 int ret = 0; 1884 1885 mask = params->sta_flags_mask; 1886 set = params->sta_flags_set; 1887 1888 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1889 /* 1890 * In mesh mode, ASSOCIATED isn't part of the nl80211 1891 * API but must follow AUTHENTICATED for driver state. 1892 */ 1893 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1894 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1895 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1896 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1897 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1898 /* 1899 * TDLS -- everything follows authorized, but 1900 * only becoming authorized is possible, not 1901 * going back 1902 */ 1903 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1904 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1905 BIT(NL80211_STA_FLAG_ASSOCIATED); 1906 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1907 BIT(NL80211_STA_FLAG_ASSOCIATED); 1908 } 1909 } 1910 1911 if (mask & BIT(NL80211_STA_FLAG_WME) && 1912 local->hw.queues >= IEEE80211_NUM_ACS) 1913 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1914 1915 /* auth flags will be set later for TDLS, 1916 * and for unassociated stations that move to associated */ 1917 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1918 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1919 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1920 ret = sta_apply_auth_flags(local, sta, mask, set); 1921 if (ret) 1922 return ret; 1923 } 1924 1925 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1926 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1927 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1928 else 1929 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1930 } 1931 1932 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1933 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1934 if (set & BIT(NL80211_STA_FLAG_MFP)) 1935 set_sta_flag(sta, WLAN_STA_MFP); 1936 else 1937 clear_sta_flag(sta, WLAN_STA_MFP); 1938 } 1939 1940 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1941 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1942 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1943 else 1944 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1945 } 1946 1947 /* mark TDLS channel switch support, if the AP allows it */ 1948 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1949 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1950 params->ext_capab_len >= 4 && 1951 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1952 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1953 1954 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1955 !sdata->u.mgd.tdls_wider_bw_prohibited && 1956 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1957 params->ext_capab_len >= 8 && 1958 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1959 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1960 1961 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1962 sta->sta.uapsd_queues = params->uapsd_queues; 1963 sta->sta.max_sp = params->max_sp; 1964 } 1965 1966 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1967 params->ext_capab_len); 1968 1969 /* 1970 * cfg80211 validates this (1-2007) and allows setting the AID 1971 * only when creating a new station entry 1972 */ 1973 if (params->aid) 1974 sta->sta.aid = params->aid; 1975 1976 /* 1977 * Some of the following updates would be racy if called on an 1978 * existing station, via ieee80211_change_station(). However, 1979 * all such changes are rejected by cfg80211 except for updates 1980 * changing the supported rates on an existing but not yet used 1981 * TDLS peer. 1982 */ 1983 1984 if (params->listen_interval >= 0) 1985 sta->listen_interval = params->listen_interval; 1986 1987 ret = sta_link_apply_parameters(local, sta, false, 1988 ¶ms->link_sta_params); 1989 if (ret) 1990 return ret; 1991 1992 if (params->support_p2p_ps >= 0) 1993 sta->sta.support_p2p_ps = params->support_p2p_ps; 1994 1995 if (ieee80211_vif_is_mesh(&sdata->vif)) 1996 sta_apply_mesh_params(local, sta, params); 1997 1998 if (params->airtime_weight) 1999 sta->airtime_weight = params->airtime_weight; 2000 2001 /* set the STA state after all sta info from usermode has been set */ 2002 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2003 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2004 ret = sta_apply_auth_flags(local, sta, mask, set); 2005 if (ret) 2006 return ret; 2007 } 2008 2009 /* Mark the STA as MLO if MLD MAC address is available */ 2010 if (params->link_sta_params.mld_mac) 2011 sta->sta.mlo = true; 2012 2013 return 0; 2014 } 2015 2016 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2017 const u8 *mac, 2018 struct station_parameters *params) 2019 { 2020 struct ieee80211_local *local = wiphy_priv(wiphy); 2021 struct sta_info *sta; 2022 struct ieee80211_sub_if_data *sdata; 2023 int err; 2024 2025 lockdep_assert_wiphy(local->hw.wiphy); 2026 2027 if (params->vlan) { 2028 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2029 2030 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2031 sdata->vif.type != NL80211_IFTYPE_AP) 2032 return -EINVAL; 2033 } else 2034 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2035 2036 if (ether_addr_equal(mac, sdata->vif.addr)) 2037 return -EINVAL; 2038 2039 if (!is_valid_ether_addr(mac)) 2040 return -EINVAL; 2041 2042 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2043 sdata->vif.type == NL80211_IFTYPE_STATION && 2044 !sdata->u.mgd.associated) 2045 return -EINVAL; 2046 2047 /* 2048 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2049 * but we need to have a link_mac in that case as well, so use the 2050 * STA's MAC address in that case. 2051 */ 2052 if (params->link_sta_params.link_id >= 0) 2053 sta = sta_info_alloc_with_link(sdata, mac, 2054 params->link_sta_params.link_id, 2055 params->link_sta_params.link_mac ?: mac, 2056 GFP_KERNEL); 2057 else 2058 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2059 2060 if (!sta) 2061 return -ENOMEM; 2062 2063 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2064 sta->sta.tdls = true; 2065 2066 /* Though the mutex is not needed here (since the station is not 2067 * visible yet), sta_apply_parameters (and inner functions) require 2068 * the mutex due to other paths. 2069 */ 2070 err = sta_apply_parameters(local, sta, params); 2071 if (err) { 2072 sta_info_free(local, sta); 2073 return err; 2074 } 2075 2076 /* 2077 * for TDLS and for unassociated station, rate control should be 2078 * initialized only when rates are known and station is marked 2079 * authorized/associated 2080 */ 2081 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2082 test_sta_flag(sta, WLAN_STA_ASSOC)) 2083 rate_control_rate_init(sta); 2084 2085 return sta_info_insert(sta); 2086 } 2087 2088 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2089 struct station_del_parameters *params) 2090 { 2091 struct ieee80211_sub_if_data *sdata; 2092 2093 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2094 2095 if (params->mac) 2096 return sta_info_destroy_addr_bss(sdata, params->mac); 2097 2098 sta_info_flush(sdata); 2099 return 0; 2100 } 2101 2102 static int ieee80211_change_station(struct wiphy *wiphy, 2103 struct net_device *dev, const u8 *mac, 2104 struct station_parameters *params) 2105 { 2106 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2107 struct ieee80211_local *local = wiphy_priv(wiphy); 2108 struct sta_info *sta; 2109 struct ieee80211_sub_if_data *vlansdata; 2110 enum cfg80211_station_type statype; 2111 int err; 2112 2113 lockdep_assert_wiphy(local->hw.wiphy); 2114 2115 sta = sta_info_get_bss(sdata, mac); 2116 if (!sta) 2117 return -ENOENT; 2118 2119 switch (sdata->vif.type) { 2120 case NL80211_IFTYPE_MESH_POINT: 2121 if (sdata->u.mesh.user_mpm) 2122 statype = CFG80211_STA_MESH_PEER_USER; 2123 else 2124 statype = CFG80211_STA_MESH_PEER_KERNEL; 2125 break; 2126 case NL80211_IFTYPE_ADHOC: 2127 statype = CFG80211_STA_IBSS; 2128 break; 2129 case NL80211_IFTYPE_STATION: 2130 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2131 statype = CFG80211_STA_AP_STA; 2132 break; 2133 } 2134 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2135 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2136 else 2137 statype = CFG80211_STA_TDLS_PEER_SETUP; 2138 break; 2139 case NL80211_IFTYPE_AP: 2140 case NL80211_IFTYPE_AP_VLAN: 2141 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2142 statype = CFG80211_STA_AP_CLIENT; 2143 else 2144 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2145 break; 2146 default: 2147 return -EOPNOTSUPP; 2148 } 2149 2150 err = cfg80211_check_station_change(wiphy, params, statype); 2151 if (err) 2152 return err; 2153 2154 if (params->vlan && params->vlan != sta->sdata->dev) { 2155 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2156 2157 if (params->vlan->ieee80211_ptr->use_4addr) { 2158 if (vlansdata->u.vlan.sta) 2159 return -EBUSY; 2160 2161 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2162 __ieee80211_check_fast_rx_iface(vlansdata); 2163 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2164 } 2165 2166 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2167 sta->sdata->u.vlan.sta) { 2168 ieee80211_clear_fast_rx(sta); 2169 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2170 } 2171 2172 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2173 ieee80211_vif_dec_num_mcast(sta->sdata); 2174 2175 sta->sdata = vlansdata; 2176 ieee80211_check_fast_xmit(sta); 2177 2178 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2179 ieee80211_vif_inc_num_mcast(sta->sdata); 2180 cfg80211_send_layer2_update(sta->sdata->dev, 2181 sta->sta.addr); 2182 } 2183 } 2184 2185 err = sta_apply_parameters(local, sta, params); 2186 if (err) 2187 return err; 2188 2189 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2190 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2191 ieee80211_recalc_ps(local); 2192 ieee80211_recalc_ps_vif(sdata); 2193 } 2194 2195 return 0; 2196 } 2197 2198 #ifdef CONFIG_MAC80211_MESH 2199 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2200 const u8 *dst, const u8 *next_hop) 2201 { 2202 struct ieee80211_sub_if_data *sdata; 2203 struct mesh_path *mpath; 2204 struct sta_info *sta; 2205 2206 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2207 2208 rcu_read_lock(); 2209 sta = sta_info_get(sdata, next_hop); 2210 if (!sta) { 2211 rcu_read_unlock(); 2212 return -ENOENT; 2213 } 2214 2215 mpath = mesh_path_add(sdata, dst); 2216 if (IS_ERR(mpath)) { 2217 rcu_read_unlock(); 2218 return PTR_ERR(mpath); 2219 } 2220 2221 mesh_path_fix_nexthop(mpath, sta); 2222 2223 rcu_read_unlock(); 2224 return 0; 2225 } 2226 2227 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2228 const u8 *dst) 2229 { 2230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2231 2232 if (dst) 2233 return mesh_path_del(sdata, dst); 2234 2235 mesh_path_flush_by_iface(sdata); 2236 return 0; 2237 } 2238 2239 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2240 const u8 *dst, const u8 *next_hop) 2241 { 2242 struct ieee80211_sub_if_data *sdata; 2243 struct mesh_path *mpath; 2244 struct sta_info *sta; 2245 2246 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2247 2248 rcu_read_lock(); 2249 2250 sta = sta_info_get(sdata, next_hop); 2251 if (!sta) { 2252 rcu_read_unlock(); 2253 return -ENOENT; 2254 } 2255 2256 mpath = mesh_path_lookup(sdata, dst); 2257 if (!mpath) { 2258 rcu_read_unlock(); 2259 return -ENOENT; 2260 } 2261 2262 mesh_path_fix_nexthop(mpath, sta); 2263 2264 rcu_read_unlock(); 2265 return 0; 2266 } 2267 2268 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2269 struct mpath_info *pinfo) 2270 { 2271 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2272 2273 if (next_hop_sta) 2274 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2275 else 2276 eth_zero_addr(next_hop); 2277 2278 memset(pinfo, 0, sizeof(*pinfo)); 2279 2280 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2281 2282 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2283 MPATH_INFO_SN | 2284 MPATH_INFO_METRIC | 2285 MPATH_INFO_EXPTIME | 2286 MPATH_INFO_DISCOVERY_TIMEOUT | 2287 MPATH_INFO_DISCOVERY_RETRIES | 2288 MPATH_INFO_FLAGS | 2289 MPATH_INFO_HOP_COUNT | 2290 MPATH_INFO_PATH_CHANGE; 2291 2292 pinfo->frame_qlen = mpath->frame_queue.qlen; 2293 pinfo->sn = mpath->sn; 2294 pinfo->metric = mpath->metric; 2295 if (time_before(jiffies, mpath->exp_time)) 2296 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2297 pinfo->discovery_timeout = 2298 jiffies_to_msecs(mpath->discovery_timeout); 2299 pinfo->discovery_retries = mpath->discovery_retries; 2300 if (mpath->flags & MESH_PATH_ACTIVE) 2301 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2302 if (mpath->flags & MESH_PATH_RESOLVING) 2303 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2304 if (mpath->flags & MESH_PATH_SN_VALID) 2305 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2306 if (mpath->flags & MESH_PATH_FIXED) 2307 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2308 if (mpath->flags & MESH_PATH_RESOLVED) 2309 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2310 pinfo->hop_count = mpath->hop_count; 2311 pinfo->path_change_count = mpath->path_change_count; 2312 } 2313 2314 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2315 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2316 2317 { 2318 struct ieee80211_sub_if_data *sdata; 2319 struct mesh_path *mpath; 2320 2321 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2322 2323 rcu_read_lock(); 2324 mpath = mesh_path_lookup(sdata, dst); 2325 if (!mpath) { 2326 rcu_read_unlock(); 2327 return -ENOENT; 2328 } 2329 memcpy(dst, mpath->dst, ETH_ALEN); 2330 mpath_set_pinfo(mpath, next_hop, pinfo); 2331 rcu_read_unlock(); 2332 return 0; 2333 } 2334 2335 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2336 int idx, u8 *dst, u8 *next_hop, 2337 struct mpath_info *pinfo) 2338 { 2339 struct ieee80211_sub_if_data *sdata; 2340 struct mesh_path *mpath; 2341 2342 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2343 2344 rcu_read_lock(); 2345 mpath = mesh_path_lookup_by_idx(sdata, idx); 2346 if (!mpath) { 2347 rcu_read_unlock(); 2348 return -ENOENT; 2349 } 2350 memcpy(dst, mpath->dst, ETH_ALEN); 2351 mpath_set_pinfo(mpath, next_hop, pinfo); 2352 rcu_read_unlock(); 2353 return 0; 2354 } 2355 2356 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2357 struct mpath_info *pinfo) 2358 { 2359 memset(pinfo, 0, sizeof(*pinfo)); 2360 memcpy(mpp, mpath->mpp, ETH_ALEN); 2361 2362 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2363 } 2364 2365 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2366 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2367 2368 { 2369 struct ieee80211_sub_if_data *sdata; 2370 struct mesh_path *mpath; 2371 2372 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2373 2374 rcu_read_lock(); 2375 mpath = mpp_path_lookup(sdata, dst); 2376 if (!mpath) { 2377 rcu_read_unlock(); 2378 return -ENOENT; 2379 } 2380 memcpy(dst, mpath->dst, ETH_ALEN); 2381 mpp_set_pinfo(mpath, mpp, pinfo); 2382 rcu_read_unlock(); 2383 return 0; 2384 } 2385 2386 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2387 int idx, u8 *dst, u8 *mpp, 2388 struct mpath_info *pinfo) 2389 { 2390 struct ieee80211_sub_if_data *sdata; 2391 struct mesh_path *mpath; 2392 2393 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2394 2395 rcu_read_lock(); 2396 mpath = mpp_path_lookup_by_idx(sdata, idx); 2397 if (!mpath) { 2398 rcu_read_unlock(); 2399 return -ENOENT; 2400 } 2401 memcpy(dst, mpath->dst, ETH_ALEN); 2402 mpp_set_pinfo(mpath, mpp, pinfo); 2403 rcu_read_unlock(); 2404 return 0; 2405 } 2406 2407 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2408 struct net_device *dev, 2409 struct mesh_config *conf) 2410 { 2411 struct ieee80211_sub_if_data *sdata; 2412 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2413 2414 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2415 return 0; 2416 } 2417 2418 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2419 { 2420 return (mask >> (parm-1)) & 0x1; 2421 } 2422 2423 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2424 const struct mesh_setup *setup) 2425 { 2426 u8 *new_ie; 2427 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2428 struct ieee80211_sub_if_data, u.mesh); 2429 int i; 2430 2431 /* allocate information elements */ 2432 new_ie = NULL; 2433 2434 if (setup->ie_len) { 2435 new_ie = kmemdup(setup->ie, setup->ie_len, 2436 GFP_KERNEL); 2437 if (!new_ie) 2438 return -ENOMEM; 2439 } 2440 ifmsh->ie_len = setup->ie_len; 2441 ifmsh->ie = new_ie; 2442 2443 /* now copy the rest of the setup parameters */ 2444 ifmsh->mesh_id_len = setup->mesh_id_len; 2445 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2446 ifmsh->mesh_sp_id = setup->sync_method; 2447 ifmsh->mesh_pp_id = setup->path_sel_proto; 2448 ifmsh->mesh_pm_id = setup->path_metric; 2449 ifmsh->user_mpm = setup->user_mpm; 2450 ifmsh->mesh_auth_id = setup->auth_id; 2451 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2452 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2453 if (setup->is_authenticated) 2454 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2455 if (setup->is_secure) 2456 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2457 2458 /* mcast rate setting in Mesh Node */ 2459 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2460 sizeof(setup->mcast_rate)); 2461 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2462 2463 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2464 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2465 2466 sdata->beacon_rate_set = false; 2467 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2468 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2469 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2470 sdata->beacon_rateidx_mask[i] = 2471 setup->beacon_rate.control[i].legacy; 2472 if (sdata->beacon_rateidx_mask[i]) 2473 sdata->beacon_rate_set = true; 2474 } 2475 } 2476 2477 return 0; 2478 } 2479 2480 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2481 struct net_device *dev, u32 mask, 2482 const struct mesh_config *nconf) 2483 { 2484 struct mesh_config *conf; 2485 struct ieee80211_sub_if_data *sdata; 2486 struct ieee80211_if_mesh *ifmsh; 2487 2488 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2489 ifmsh = &sdata->u.mesh; 2490 2491 /* Set the config options which we are interested in setting */ 2492 conf = &(sdata->u.mesh.mshcfg); 2493 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2494 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2495 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2496 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2497 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2498 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2499 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2500 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2501 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2502 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2503 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2504 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2505 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2506 conf->element_ttl = nconf->element_ttl; 2507 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2508 if (ifmsh->user_mpm) 2509 return -EBUSY; 2510 conf->auto_open_plinks = nconf->auto_open_plinks; 2511 } 2512 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2513 conf->dot11MeshNbrOffsetMaxNeighbor = 2514 nconf->dot11MeshNbrOffsetMaxNeighbor; 2515 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2516 conf->dot11MeshHWMPmaxPREQretries = 2517 nconf->dot11MeshHWMPmaxPREQretries; 2518 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2519 conf->path_refresh_time = nconf->path_refresh_time; 2520 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2521 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2522 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2523 conf->dot11MeshHWMPactivePathTimeout = 2524 nconf->dot11MeshHWMPactivePathTimeout; 2525 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2526 conf->dot11MeshHWMPpreqMinInterval = 2527 nconf->dot11MeshHWMPpreqMinInterval; 2528 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2529 conf->dot11MeshHWMPperrMinInterval = 2530 nconf->dot11MeshHWMPperrMinInterval; 2531 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2532 mask)) 2533 conf->dot11MeshHWMPnetDiameterTraversalTime = 2534 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2535 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2536 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2537 ieee80211_mesh_root_setup(ifmsh); 2538 } 2539 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2540 /* our current gate announcement implementation rides on root 2541 * announcements, so require this ifmsh to also be a root node 2542 * */ 2543 if (nconf->dot11MeshGateAnnouncementProtocol && 2544 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2545 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2546 ieee80211_mesh_root_setup(ifmsh); 2547 } 2548 conf->dot11MeshGateAnnouncementProtocol = 2549 nconf->dot11MeshGateAnnouncementProtocol; 2550 } 2551 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2552 conf->dot11MeshHWMPRannInterval = 2553 nconf->dot11MeshHWMPRannInterval; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2555 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2556 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2557 /* our RSSI threshold implementation is supported only for 2558 * devices that report signal in dBm. 2559 */ 2560 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2561 return -EOPNOTSUPP; 2562 conf->rssi_threshold = nconf->rssi_threshold; 2563 } 2564 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2565 conf->ht_opmode = nconf->ht_opmode; 2566 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2567 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2568 BSS_CHANGED_HT); 2569 } 2570 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2571 conf->dot11MeshHWMPactivePathToRootTimeout = 2572 nconf->dot11MeshHWMPactivePathToRootTimeout; 2573 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2574 conf->dot11MeshHWMProotInterval = 2575 nconf->dot11MeshHWMProotInterval; 2576 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2577 conf->dot11MeshHWMPconfirmationInterval = 2578 nconf->dot11MeshHWMPconfirmationInterval; 2579 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2580 conf->power_mode = nconf->power_mode; 2581 ieee80211_mps_local_status_update(sdata); 2582 } 2583 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2584 conf->dot11MeshAwakeWindowDuration = 2585 nconf->dot11MeshAwakeWindowDuration; 2586 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2587 conf->plink_timeout = nconf->plink_timeout; 2588 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2589 conf->dot11MeshConnectedToMeshGate = 2590 nconf->dot11MeshConnectedToMeshGate; 2591 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2592 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2593 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2594 conf->dot11MeshConnectedToAuthServer = 2595 nconf->dot11MeshConnectedToAuthServer; 2596 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2597 return 0; 2598 } 2599 2600 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2601 const struct mesh_config *conf, 2602 const struct mesh_setup *setup) 2603 { 2604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2605 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2606 int err; 2607 2608 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2609 2610 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2611 err = copy_mesh_setup(ifmsh, setup); 2612 if (err) 2613 return err; 2614 2615 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2616 2617 /* can mesh use other SMPS modes? */ 2618 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2619 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2620 2621 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2622 IEEE80211_CHANCTX_SHARED); 2623 if (err) 2624 return err; 2625 2626 return ieee80211_start_mesh(sdata); 2627 } 2628 2629 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2630 { 2631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2632 2633 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2634 2635 ieee80211_stop_mesh(sdata); 2636 ieee80211_link_release_channel(&sdata->deflink); 2637 kfree(sdata->u.mesh.ie); 2638 2639 return 0; 2640 } 2641 #endif 2642 2643 static int ieee80211_change_bss(struct wiphy *wiphy, 2644 struct net_device *dev, 2645 struct bss_parameters *params) 2646 { 2647 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2648 struct ieee80211_link_data *link; 2649 struct ieee80211_supported_band *sband; 2650 u64 changed = 0; 2651 2652 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2653 if (IS_ERR(link)) 2654 return PTR_ERR(link); 2655 2656 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2657 return -ENOENT; 2658 2659 sband = ieee80211_get_link_sband(link); 2660 if (!sband) 2661 return -EINVAL; 2662 2663 if (params->basic_rates) { 2664 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2665 wiphy->bands[sband->band], 2666 params->basic_rates, 2667 params->basic_rates_len, 2668 &link->conf->basic_rates)) 2669 return -EINVAL; 2670 changed |= BSS_CHANGED_BASIC_RATES; 2671 ieee80211_check_rate_mask(link); 2672 } 2673 2674 if (params->use_cts_prot >= 0) { 2675 link->conf->use_cts_prot = params->use_cts_prot; 2676 changed |= BSS_CHANGED_ERP_CTS_PROT; 2677 } 2678 if (params->use_short_preamble >= 0) { 2679 link->conf->use_short_preamble = params->use_short_preamble; 2680 changed |= BSS_CHANGED_ERP_PREAMBLE; 2681 } 2682 2683 if (!link->conf->use_short_slot && 2684 (sband->band == NL80211_BAND_5GHZ || 2685 sband->band == NL80211_BAND_6GHZ)) { 2686 link->conf->use_short_slot = true; 2687 changed |= BSS_CHANGED_ERP_SLOT; 2688 } 2689 2690 if (params->use_short_slot_time >= 0) { 2691 link->conf->use_short_slot = params->use_short_slot_time; 2692 changed |= BSS_CHANGED_ERP_SLOT; 2693 } 2694 2695 if (params->ap_isolate >= 0) { 2696 if (params->ap_isolate) 2697 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2698 else 2699 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2700 ieee80211_check_fast_rx_iface(sdata); 2701 } 2702 2703 if (params->ht_opmode >= 0) { 2704 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2705 changed |= BSS_CHANGED_HT; 2706 } 2707 2708 if (params->p2p_ctwindow >= 0) { 2709 link->conf->p2p_noa_attr.oppps_ctwindow &= 2710 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2711 link->conf->p2p_noa_attr.oppps_ctwindow |= 2712 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2713 changed |= BSS_CHANGED_P2P_PS; 2714 } 2715 2716 if (params->p2p_opp_ps > 0) { 2717 link->conf->p2p_noa_attr.oppps_ctwindow |= 2718 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2719 changed |= BSS_CHANGED_P2P_PS; 2720 } else if (params->p2p_opp_ps == 0) { 2721 link->conf->p2p_noa_attr.oppps_ctwindow &= 2722 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2723 changed |= BSS_CHANGED_P2P_PS; 2724 } 2725 2726 ieee80211_link_info_change_notify(sdata, link, changed); 2727 2728 return 0; 2729 } 2730 2731 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2732 struct net_device *dev, 2733 struct ieee80211_txq_params *params) 2734 { 2735 struct ieee80211_local *local = wiphy_priv(wiphy); 2736 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2737 struct ieee80211_link_data *link = 2738 ieee80211_link_or_deflink(sdata, params->link_id, true); 2739 struct ieee80211_tx_queue_params p; 2740 2741 if (!local->ops->conf_tx) 2742 return -EOPNOTSUPP; 2743 2744 if (local->hw.queues < IEEE80211_NUM_ACS) 2745 return -EOPNOTSUPP; 2746 2747 if (IS_ERR(link)) 2748 return PTR_ERR(link); 2749 2750 memset(&p, 0, sizeof(p)); 2751 p.aifs = params->aifs; 2752 p.cw_max = params->cwmax; 2753 p.cw_min = params->cwmin; 2754 p.txop = params->txop; 2755 2756 /* 2757 * Setting tx queue params disables u-apsd because it's only 2758 * called in master mode. 2759 */ 2760 p.uapsd = false; 2761 2762 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2763 2764 link->tx_conf[params->ac] = p; 2765 if (drv_conf_tx(local, link, params->ac, &p)) { 2766 wiphy_debug(local->hw.wiphy, 2767 "failed to set TX queue parameters for AC %d\n", 2768 params->ac); 2769 return -EINVAL; 2770 } 2771 2772 ieee80211_link_info_change_notify(sdata, link, 2773 BSS_CHANGED_QOS); 2774 2775 return 0; 2776 } 2777 2778 #ifdef CONFIG_PM 2779 static int ieee80211_suspend(struct wiphy *wiphy, 2780 struct cfg80211_wowlan *wowlan) 2781 { 2782 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2783 } 2784 2785 static int ieee80211_resume(struct wiphy *wiphy) 2786 { 2787 return __ieee80211_resume(wiphy_priv(wiphy)); 2788 } 2789 #else 2790 #define ieee80211_suspend NULL 2791 #define ieee80211_resume NULL 2792 #endif 2793 2794 static int ieee80211_scan(struct wiphy *wiphy, 2795 struct cfg80211_scan_request *req) 2796 { 2797 struct ieee80211_sub_if_data *sdata; 2798 2799 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2800 2801 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2802 case NL80211_IFTYPE_STATION: 2803 case NL80211_IFTYPE_ADHOC: 2804 case NL80211_IFTYPE_MESH_POINT: 2805 case NL80211_IFTYPE_P2P_CLIENT: 2806 case NL80211_IFTYPE_P2P_DEVICE: 2807 break; 2808 case NL80211_IFTYPE_P2P_GO: 2809 if (sdata->local->ops->hw_scan) 2810 break; 2811 /* 2812 * FIXME: implement NoA while scanning in software, 2813 * for now fall through to allow scanning only when 2814 * beaconing hasn't been configured yet 2815 */ 2816 fallthrough; 2817 case NL80211_IFTYPE_AP: 2818 /* 2819 * If the scan has been forced (and the driver supports 2820 * forcing), don't care about being beaconing already. 2821 * This will create problems to the attached stations (e.g. all 2822 * the frames sent while scanning on other channel will be 2823 * lost) 2824 */ 2825 if (sdata->deflink.u.ap.beacon && 2826 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2827 !(req->flags & NL80211_SCAN_FLAG_AP))) 2828 return -EOPNOTSUPP; 2829 break; 2830 case NL80211_IFTYPE_NAN: 2831 default: 2832 return -EOPNOTSUPP; 2833 } 2834 2835 return ieee80211_request_scan(sdata, req); 2836 } 2837 2838 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2839 { 2840 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2841 } 2842 2843 static int 2844 ieee80211_sched_scan_start(struct wiphy *wiphy, 2845 struct net_device *dev, 2846 struct cfg80211_sched_scan_request *req) 2847 { 2848 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2849 2850 if (!sdata->local->ops->sched_scan_start) 2851 return -EOPNOTSUPP; 2852 2853 return ieee80211_request_sched_scan_start(sdata, req); 2854 } 2855 2856 static int 2857 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2858 u64 reqid) 2859 { 2860 struct ieee80211_local *local = wiphy_priv(wiphy); 2861 2862 if (!local->ops->sched_scan_stop) 2863 return -EOPNOTSUPP; 2864 2865 return ieee80211_request_sched_scan_stop(local); 2866 } 2867 2868 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2869 struct cfg80211_auth_request *req) 2870 { 2871 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2872 } 2873 2874 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2875 struct cfg80211_assoc_request *req) 2876 { 2877 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2878 } 2879 2880 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2881 struct cfg80211_deauth_request *req) 2882 { 2883 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2884 } 2885 2886 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2887 struct cfg80211_disassoc_request *req) 2888 { 2889 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2890 } 2891 2892 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2893 struct cfg80211_ibss_params *params) 2894 { 2895 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2896 } 2897 2898 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2899 { 2900 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2901 } 2902 2903 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2904 struct ocb_setup *setup) 2905 { 2906 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2907 } 2908 2909 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2910 { 2911 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2912 } 2913 2914 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2915 int rate[NUM_NL80211_BANDS]) 2916 { 2917 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2918 2919 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2920 sizeof(int) * NUM_NL80211_BANDS); 2921 2922 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2923 BSS_CHANGED_MCAST_RATE); 2924 2925 return 0; 2926 } 2927 2928 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2929 { 2930 struct ieee80211_local *local = wiphy_priv(wiphy); 2931 int err; 2932 2933 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2934 ieee80211_check_fast_xmit_all(local); 2935 2936 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2937 2938 if (err) { 2939 ieee80211_check_fast_xmit_all(local); 2940 return err; 2941 } 2942 } 2943 2944 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2945 (changed & WIPHY_PARAM_DYN_ACK)) { 2946 s16 coverage_class; 2947 2948 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2949 wiphy->coverage_class : -1; 2950 err = drv_set_coverage_class(local, coverage_class); 2951 2952 if (err) 2953 return err; 2954 } 2955 2956 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2957 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2958 2959 if (err) 2960 return err; 2961 } 2962 2963 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2964 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2965 return -EINVAL; 2966 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2967 } 2968 if (changed & WIPHY_PARAM_RETRY_LONG) { 2969 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2970 return -EINVAL; 2971 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2972 } 2973 if (changed & 2974 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2975 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2976 2977 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2978 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2979 WIPHY_PARAM_TXQ_QUANTUM)) 2980 ieee80211_txq_set_params(local); 2981 2982 return 0; 2983 } 2984 2985 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2986 struct wireless_dev *wdev, 2987 enum nl80211_tx_power_setting type, int mbm) 2988 { 2989 struct ieee80211_local *local = wiphy_priv(wiphy); 2990 struct ieee80211_sub_if_data *sdata; 2991 enum nl80211_tx_power_setting txp_type = type; 2992 bool update_txp_type = false; 2993 bool has_monitor = false; 2994 2995 lockdep_assert_wiphy(local->hw.wiphy); 2996 2997 if (wdev) { 2998 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2999 3000 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3001 sdata = wiphy_dereference(local->hw.wiphy, 3002 local->monitor_sdata); 3003 if (!sdata) 3004 return -EOPNOTSUPP; 3005 } 3006 3007 switch (type) { 3008 case NL80211_TX_POWER_AUTOMATIC: 3009 sdata->deflink.user_power_level = 3010 IEEE80211_UNSET_POWER_LEVEL; 3011 txp_type = NL80211_TX_POWER_LIMITED; 3012 break; 3013 case NL80211_TX_POWER_LIMITED: 3014 case NL80211_TX_POWER_FIXED: 3015 if (mbm < 0 || (mbm % 100)) 3016 return -EOPNOTSUPP; 3017 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3018 break; 3019 } 3020 3021 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3022 update_txp_type = true; 3023 sdata->vif.bss_conf.txpower_type = txp_type; 3024 } 3025 3026 ieee80211_recalc_txpower(sdata, update_txp_type); 3027 3028 return 0; 3029 } 3030 3031 switch (type) { 3032 case NL80211_TX_POWER_AUTOMATIC: 3033 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3034 txp_type = NL80211_TX_POWER_LIMITED; 3035 break; 3036 case NL80211_TX_POWER_LIMITED: 3037 case NL80211_TX_POWER_FIXED: 3038 if (mbm < 0 || (mbm % 100)) 3039 return -EOPNOTSUPP; 3040 local->user_power_level = MBM_TO_DBM(mbm); 3041 break; 3042 } 3043 3044 list_for_each_entry(sdata, &local->interfaces, list) { 3045 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3046 has_monitor = true; 3047 continue; 3048 } 3049 sdata->deflink.user_power_level = local->user_power_level; 3050 if (txp_type != sdata->vif.bss_conf.txpower_type) 3051 update_txp_type = true; 3052 sdata->vif.bss_conf.txpower_type = txp_type; 3053 } 3054 list_for_each_entry(sdata, &local->interfaces, list) { 3055 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3056 continue; 3057 ieee80211_recalc_txpower(sdata, update_txp_type); 3058 } 3059 3060 if (has_monitor) { 3061 sdata = wiphy_dereference(local->hw.wiphy, 3062 local->monitor_sdata); 3063 if (sdata) { 3064 sdata->deflink.user_power_level = local->user_power_level; 3065 if (txp_type != sdata->vif.bss_conf.txpower_type) 3066 update_txp_type = true; 3067 sdata->vif.bss_conf.txpower_type = txp_type; 3068 3069 ieee80211_recalc_txpower(sdata, update_txp_type); 3070 } 3071 } 3072 3073 return 0; 3074 } 3075 3076 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3077 struct wireless_dev *wdev, 3078 int *dbm) 3079 { 3080 struct ieee80211_local *local = wiphy_priv(wiphy); 3081 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3082 3083 if (local->ops->get_txpower) 3084 return drv_get_txpower(local, sdata, dbm); 3085 3086 if (!local->use_chanctx) 3087 *dbm = local->hw.conf.power_level; 3088 else 3089 *dbm = sdata->vif.bss_conf.txpower; 3090 3091 /* INT_MIN indicates no power level was set yet */ 3092 if (*dbm == INT_MIN) 3093 return -EINVAL; 3094 3095 return 0; 3096 } 3097 3098 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3099 { 3100 struct ieee80211_local *local = wiphy_priv(wiphy); 3101 3102 drv_rfkill_poll(local); 3103 } 3104 3105 #ifdef CONFIG_NL80211_TESTMODE 3106 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3107 struct wireless_dev *wdev, 3108 void *data, int len) 3109 { 3110 struct ieee80211_local *local = wiphy_priv(wiphy); 3111 struct ieee80211_vif *vif = NULL; 3112 3113 if (!local->ops->testmode_cmd) 3114 return -EOPNOTSUPP; 3115 3116 if (wdev) { 3117 struct ieee80211_sub_if_data *sdata; 3118 3119 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3120 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3121 vif = &sdata->vif; 3122 } 3123 3124 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3125 } 3126 3127 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3128 struct sk_buff *skb, 3129 struct netlink_callback *cb, 3130 void *data, int len) 3131 { 3132 struct ieee80211_local *local = wiphy_priv(wiphy); 3133 3134 if (!local->ops->testmode_dump) 3135 return -EOPNOTSUPP; 3136 3137 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3138 } 3139 #endif 3140 3141 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3142 struct ieee80211_link_data *link, 3143 enum ieee80211_smps_mode smps_mode) 3144 { 3145 const u8 *ap; 3146 enum ieee80211_smps_mode old_req; 3147 int err; 3148 struct sta_info *sta; 3149 bool tdls_peer_found = false; 3150 3151 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3152 3153 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3154 return -EINVAL; 3155 3156 if (ieee80211_vif_is_mld(&sdata->vif) && 3157 !(sdata->vif.active_links & BIT(link->link_id))) 3158 return 0; 3159 3160 old_req = link->u.mgd.req_smps; 3161 link->u.mgd.req_smps = smps_mode; 3162 3163 /* The driver indicated that EML is enabled for the interface, which 3164 * implies that SMPS flows towards the AP should be stopped. 3165 */ 3166 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3167 return 0; 3168 3169 if (old_req == smps_mode && 3170 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3171 return 0; 3172 3173 /* 3174 * If not associated, or current association is not an HT 3175 * association, there's no need to do anything, just store 3176 * the new value until we associate. 3177 */ 3178 if (!sdata->u.mgd.associated || 3179 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3180 return 0; 3181 3182 ap = sdata->vif.cfg.ap_addr; 3183 3184 rcu_read_lock(); 3185 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3186 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3187 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3188 continue; 3189 3190 tdls_peer_found = true; 3191 break; 3192 } 3193 rcu_read_unlock(); 3194 3195 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3196 if (tdls_peer_found || !sdata->u.mgd.powersave) 3197 smps_mode = IEEE80211_SMPS_OFF; 3198 else 3199 smps_mode = IEEE80211_SMPS_DYNAMIC; 3200 } 3201 3202 /* send SM PS frame to AP */ 3203 err = ieee80211_send_smps_action(sdata, smps_mode, 3204 ap, ap, 3205 ieee80211_vif_is_mld(&sdata->vif) ? 3206 link->link_id : -1); 3207 if (err) 3208 link->u.mgd.req_smps = old_req; 3209 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3210 ieee80211_teardown_tdls_peers(sdata); 3211 3212 return err; 3213 } 3214 3215 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3216 bool enabled, int timeout) 3217 { 3218 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3219 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3220 unsigned int link_id; 3221 3222 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3223 return -EOPNOTSUPP; 3224 3225 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3226 return -EOPNOTSUPP; 3227 3228 if (enabled == sdata->u.mgd.powersave && 3229 timeout == local->dynamic_ps_forced_timeout) 3230 return 0; 3231 3232 sdata->u.mgd.powersave = enabled; 3233 local->dynamic_ps_forced_timeout = timeout; 3234 3235 /* no change, but if automatic follow powersave */ 3236 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3237 struct ieee80211_link_data *link; 3238 3239 link = sdata_dereference(sdata->link[link_id], sdata); 3240 3241 if (!link) 3242 continue; 3243 __ieee80211_request_smps_mgd(sdata, link, 3244 link->u.mgd.req_smps); 3245 } 3246 3247 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3248 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3249 3250 ieee80211_recalc_ps(local); 3251 ieee80211_recalc_ps_vif(sdata); 3252 ieee80211_check_fast_rx_iface(sdata); 3253 3254 return 0; 3255 } 3256 3257 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3258 struct net_device *dev, 3259 s32 rssi_thold, u32 rssi_hyst) 3260 { 3261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3262 struct ieee80211_vif *vif = &sdata->vif; 3263 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3264 3265 if (rssi_thold == bss_conf->cqm_rssi_thold && 3266 rssi_hyst == bss_conf->cqm_rssi_hyst) 3267 return 0; 3268 3269 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3270 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3271 return -EOPNOTSUPP; 3272 3273 bss_conf->cqm_rssi_thold = rssi_thold; 3274 bss_conf->cqm_rssi_hyst = rssi_hyst; 3275 bss_conf->cqm_rssi_low = 0; 3276 bss_conf->cqm_rssi_high = 0; 3277 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3278 3279 /* tell the driver upon association, unless already associated */ 3280 if (sdata->u.mgd.associated && 3281 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3282 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3283 BSS_CHANGED_CQM); 3284 3285 return 0; 3286 } 3287 3288 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3289 struct net_device *dev, 3290 s32 rssi_low, s32 rssi_high) 3291 { 3292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3293 struct ieee80211_vif *vif = &sdata->vif; 3294 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3295 3296 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3297 return -EOPNOTSUPP; 3298 3299 bss_conf->cqm_rssi_low = rssi_low; 3300 bss_conf->cqm_rssi_high = rssi_high; 3301 bss_conf->cqm_rssi_thold = 0; 3302 bss_conf->cqm_rssi_hyst = 0; 3303 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3304 3305 /* tell the driver upon association, unless already associated */ 3306 if (sdata->u.mgd.associated && 3307 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3308 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3309 BSS_CHANGED_CQM); 3310 3311 return 0; 3312 } 3313 3314 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3315 struct net_device *dev, 3316 unsigned int link_id, 3317 const u8 *addr, 3318 const struct cfg80211_bitrate_mask *mask) 3319 { 3320 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3321 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3322 int i, ret; 3323 3324 if (!ieee80211_sdata_running(sdata)) 3325 return -ENETDOWN; 3326 3327 /* 3328 * If active validate the setting and reject it if it doesn't leave 3329 * at least one basic rate usable, since we really have to be able 3330 * to send something, and if we're an AP we have to be able to do 3331 * so at a basic rate so that all clients can receive it. 3332 */ 3333 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3334 sdata->vif.bss_conf.chandef.chan) { 3335 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3336 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3337 3338 if (!(mask->control[band].legacy & basic_rates)) 3339 return -EINVAL; 3340 } 3341 3342 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3343 ret = drv_set_bitrate_mask(local, sdata, mask); 3344 if (ret) 3345 return ret; 3346 } 3347 3348 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3349 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3350 int j; 3351 3352 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3353 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3354 sizeof(mask->control[i].ht_mcs)); 3355 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3356 mask->control[i].vht_mcs, 3357 sizeof(mask->control[i].vht_mcs)); 3358 3359 sdata->rc_has_mcs_mask[i] = false; 3360 sdata->rc_has_vht_mcs_mask[i] = false; 3361 if (!sband) 3362 continue; 3363 3364 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3365 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3366 sdata->rc_has_mcs_mask[i] = true; 3367 break; 3368 } 3369 } 3370 3371 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3372 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3373 sdata->rc_has_vht_mcs_mask[i] = true; 3374 break; 3375 } 3376 } 3377 } 3378 3379 return 0; 3380 } 3381 3382 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3383 struct net_device *dev, 3384 struct cfg80211_chan_def *chandef, 3385 u32 cac_time_ms) 3386 { 3387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3388 struct ieee80211_local *local = sdata->local; 3389 int err; 3390 3391 lockdep_assert_wiphy(local->hw.wiphy); 3392 3393 if (!list_empty(&local->roc_list) || local->scanning) { 3394 err = -EBUSY; 3395 goto out_unlock; 3396 } 3397 3398 /* whatever, but channel contexts should not complain about that one */ 3399 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3400 sdata->deflink.needed_rx_chains = local->rx_chains; 3401 3402 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3403 IEEE80211_CHANCTX_SHARED); 3404 if (err) 3405 goto out_unlock; 3406 3407 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3408 msecs_to_jiffies(cac_time_ms)); 3409 3410 out_unlock: 3411 return err; 3412 } 3413 3414 static void ieee80211_end_cac(struct wiphy *wiphy, 3415 struct net_device *dev) 3416 { 3417 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3418 struct ieee80211_local *local = sdata->local; 3419 3420 lockdep_assert_wiphy(local->hw.wiphy); 3421 3422 list_for_each_entry(sdata, &local->interfaces, list) { 3423 /* it might be waiting for the local->mtx, but then 3424 * by the time it gets it, sdata->wdev.cac_started 3425 * will no longer be true 3426 */ 3427 wiphy_delayed_work_cancel(wiphy, 3428 &sdata->deflink.dfs_cac_timer_work); 3429 3430 if (sdata->wdev.cac_started) { 3431 ieee80211_link_release_channel(&sdata->deflink); 3432 sdata->wdev.cac_started = false; 3433 } 3434 } 3435 } 3436 3437 static struct cfg80211_beacon_data * 3438 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3439 { 3440 struct cfg80211_beacon_data *new_beacon; 3441 u8 *pos; 3442 int len; 3443 3444 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3445 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3446 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3447 3448 if (beacon->mbssid_ies) 3449 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3450 beacon->rnr_ies, 3451 beacon->mbssid_ies->cnt); 3452 3453 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3454 if (!new_beacon) 3455 return NULL; 3456 3457 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3458 new_beacon->mbssid_ies = 3459 kzalloc(struct_size(new_beacon->mbssid_ies, 3460 elem, beacon->mbssid_ies->cnt), 3461 GFP_KERNEL); 3462 if (!new_beacon->mbssid_ies) { 3463 kfree(new_beacon); 3464 return NULL; 3465 } 3466 3467 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3468 new_beacon->rnr_ies = 3469 kzalloc(struct_size(new_beacon->rnr_ies, 3470 elem, beacon->rnr_ies->cnt), 3471 GFP_KERNEL); 3472 if (!new_beacon->rnr_ies) { 3473 kfree(new_beacon->mbssid_ies); 3474 kfree(new_beacon); 3475 return NULL; 3476 } 3477 } 3478 } 3479 3480 pos = (u8 *)(new_beacon + 1); 3481 if (beacon->head_len) { 3482 new_beacon->head_len = beacon->head_len; 3483 new_beacon->head = pos; 3484 memcpy(pos, beacon->head, beacon->head_len); 3485 pos += beacon->head_len; 3486 } 3487 if (beacon->tail_len) { 3488 new_beacon->tail_len = beacon->tail_len; 3489 new_beacon->tail = pos; 3490 memcpy(pos, beacon->tail, beacon->tail_len); 3491 pos += beacon->tail_len; 3492 } 3493 if (beacon->beacon_ies_len) { 3494 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3495 new_beacon->beacon_ies = pos; 3496 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3497 pos += beacon->beacon_ies_len; 3498 } 3499 if (beacon->proberesp_ies_len) { 3500 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3501 new_beacon->proberesp_ies = pos; 3502 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3503 pos += beacon->proberesp_ies_len; 3504 } 3505 if (beacon->assocresp_ies_len) { 3506 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3507 new_beacon->assocresp_ies = pos; 3508 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3509 pos += beacon->assocresp_ies_len; 3510 } 3511 if (beacon->probe_resp_len) { 3512 new_beacon->probe_resp_len = beacon->probe_resp_len; 3513 new_beacon->probe_resp = pos; 3514 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3515 pos += beacon->probe_resp_len; 3516 } 3517 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3518 pos += ieee80211_copy_mbssid_beacon(pos, 3519 new_beacon->mbssid_ies, 3520 beacon->mbssid_ies); 3521 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3522 pos += ieee80211_copy_rnr_beacon(pos, 3523 new_beacon->rnr_ies, 3524 beacon->rnr_ies); 3525 } 3526 3527 /* might copy -1, meaning no changes requested */ 3528 new_beacon->ftm_responder = beacon->ftm_responder; 3529 if (beacon->lci) { 3530 new_beacon->lci_len = beacon->lci_len; 3531 new_beacon->lci = pos; 3532 memcpy(pos, beacon->lci, beacon->lci_len); 3533 pos += beacon->lci_len; 3534 } 3535 if (beacon->civicloc) { 3536 new_beacon->civicloc_len = beacon->civicloc_len; 3537 new_beacon->civicloc = pos; 3538 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3539 pos += beacon->civicloc_len; 3540 } 3541 3542 return new_beacon; 3543 } 3544 3545 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3546 { 3547 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3548 struct ieee80211_local *local = sdata->local; 3549 3550 rcu_read_lock(); 3551 3552 if (vif->mbssid_tx_vif == vif) { 3553 /* Trigger ieee80211_csa_finish() on the non-transmitting 3554 * interfaces when channel switch is received on 3555 * transmitting interface 3556 */ 3557 struct ieee80211_sub_if_data *iter; 3558 3559 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3560 if (!ieee80211_sdata_running(iter)) 3561 continue; 3562 3563 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3564 continue; 3565 3566 wiphy_work_queue(iter->local->hw.wiphy, 3567 &iter->deflink.csa_finalize_work); 3568 } 3569 } 3570 wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work); 3571 3572 rcu_read_unlock(); 3573 } 3574 EXPORT_SYMBOL(ieee80211_csa_finish); 3575 3576 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3577 { 3578 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3579 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3580 struct ieee80211_local *local = sdata->local; 3581 3582 sdata->deflink.csa_block_tx = block_tx; 3583 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3584 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3585 } 3586 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3587 3588 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3589 u64 *changed) 3590 { 3591 int err; 3592 3593 switch (sdata->vif.type) { 3594 case NL80211_IFTYPE_AP: 3595 if (!sdata->deflink.u.ap.next_beacon) 3596 return -EINVAL; 3597 3598 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3599 sdata->deflink.u.ap.next_beacon, 3600 NULL, NULL, changed); 3601 ieee80211_free_next_beacon(&sdata->deflink); 3602 3603 if (err < 0) 3604 return err; 3605 break; 3606 case NL80211_IFTYPE_ADHOC: 3607 err = ieee80211_ibss_finish_csa(sdata, changed); 3608 if (err < 0) 3609 return err; 3610 break; 3611 #ifdef CONFIG_MAC80211_MESH 3612 case NL80211_IFTYPE_MESH_POINT: 3613 err = ieee80211_mesh_finish_csa(sdata, changed); 3614 if (err < 0) 3615 return err; 3616 break; 3617 #endif 3618 default: 3619 WARN_ON(1); 3620 return -EINVAL; 3621 } 3622 3623 return 0; 3624 } 3625 3626 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3627 { 3628 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3629 struct ieee80211_local *local = sdata->local; 3630 u64 changed = 0; 3631 int err; 3632 3633 lockdep_assert_wiphy(local->hw.wiphy); 3634 3635 /* 3636 * using reservation isn't immediate as it may be deferred until later 3637 * with multi-vif. once reservation is complete it will re-schedule the 3638 * work with no reserved_chanctx so verify chandef to check if it 3639 * completed successfully 3640 */ 3641 3642 if (link_data->reserved_chanctx) { 3643 /* 3644 * with multi-vif csa driver may call ieee80211_csa_finish() 3645 * many times while waiting for other interfaces to use their 3646 * reservations 3647 */ 3648 if (link_data->reserved_ready) 3649 return 0; 3650 3651 return ieee80211_link_use_reserved_context(&sdata->deflink); 3652 } 3653 3654 if (!cfg80211_chandef_identical(&link_data->conf->chandef, 3655 &link_data->csa_chandef)) 3656 return -EINVAL; 3657 3658 sdata->vif.bss_conf.csa_active = false; 3659 3660 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3661 if (err) 3662 return err; 3663 3664 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3665 sdata->vif.bss_conf.eht_puncturing = 3666 sdata->vif.bss_conf.csa_punct_bitmap; 3667 changed |= BSS_CHANGED_EHT_PUNCTURING; 3668 } 3669 3670 ieee80211_link_info_change_notify(sdata, link_data, changed); 3671 3672 if (link_data->csa_block_tx) { 3673 ieee80211_wake_vif_queues(local, sdata, 3674 IEEE80211_QUEUE_STOP_REASON_CSA); 3675 link_data->csa_block_tx = false; 3676 } 3677 3678 err = drv_post_channel_switch(link_data); 3679 if (err) 3680 return err; 3681 3682 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef, 3683 link_data->link_id, 3684 link_data->conf->eht_puncturing); 3685 3686 return 0; 3687 } 3688 3689 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3690 { 3691 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3692 3693 if (__ieee80211_csa_finalize(link_data)) { 3694 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3695 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3696 GFP_KERNEL); 3697 } 3698 } 3699 3700 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3701 { 3702 struct ieee80211_link_data *link = 3703 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3704 struct ieee80211_sub_if_data *sdata = link->sdata; 3705 struct ieee80211_local *local = sdata->local; 3706 3707 lockdep_assert_wiphy(local->hw.wiphy); 3708 3709 /* AP might have been stopped while waiting for the lock. */ 3710 if (!link->conf->csa_active) 3711 return; 3712 3713 if (!ieee80211_sdata_running(sdata)) 3714 return; 3715 3716 ieee80211_csa_finalize(link); 3717 } 3718 3719 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3720 struct cfg80211_csa_settings *params, 3721 u64 *changed) 3722 { 3723 struct ieee80211_csa_settings csa = {}; 3724 int err; 3725 3726 switch (sdata->vif.type) { 3727 case NL80211_IFTYPE_AP: 3728 sdata->deflink.u.ap.next_beacon = 3729 cfg80211_beacon_dup(¶ms->beacon_after); 3730 if (!sdata->deflink.u.ap.next_beacon) 3731 return -ENOMEM; 3732 3733 /* 3734 * With a count of 0, we don't have to wait for any 3735 * TBTT before switching, so complete the CSA 3736 * immediately. In theory, with a count == 1 we 3737 * should delay the switch until just before the next 3738 * TBTT, but that would complicate things so we switch 3739 * immediately too. If we would delay the switch 3740 * until the next TBTT, we would have to set the probe 3741 * response here. 3742 * 3743 * TODO: A channel switch with count <= 1 without 3744 * sending a CSA action frame is kind of useless, 3745 * because the clients won't know we're changing 3746 * channels. The action frame must be implemented 3747 * either here or in the userspace. 3748 */ 3749 if (params->count <= 1) 3750 break; 3751 3752 if ((params->n_counter_offsets_beacon > 3753 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3754 (params->n_counter_offsets_presp > 3755 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3756 ieee80211_free_next_beacon(&sdata->deflink); 3757 return -EINVAL; 3758 } 3759 3760 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3761 csa.counter_offsets_presp = params->counter_offsets_presp; 3762 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3763 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3764 csa.count = params->count; 3765 3766 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3767 ¶ms->beacon_csa, &csa, 3768 NULL, changed); 3769 if (err < 0) { 3770 ieee80211_free_next_beacon(&sdata->deflink); 3771 return err; 3772 } 3773 3774 break; 3775 case NL80211_IFTYPE_ADHOC: 3776 if (!sdata->vif.cfg.ibss_joined) 3777 return -EINVAL; 3778 3779 if (params->chandef.width != sdata->u.ibss.chandef.width) 3780 return -EINVAL; 3781 3782 switch (params->chandef.width) { 3783 case NL80211_CHAN_WIDTH_40: 3784 if (cfg80211_get_chandef_type(¶ms->chandef) != 3785 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3786 return -EINVAL; 3787 break; 3788 case NL80211_CHAN_WIDTH_5: 3789 case NL80211_CHAN_WIDTH_10: 3790 case NL80211_CHAN_WIDTH_20_NOHT: 3791 case NL80211_CHAN_WIDTH_20: 3792 break; 3793 default: 3794 return -EINVAL; 3795 } 3796 3797 /* changes into another band are not supported */ 3798 if (sdata->u.ibss.chandef.chan->band != 3799 params->chandef.chan->band) 3800 return -EINVAL; 3801 3802 /* see comments in the NL80211_IFTYPE_AP block */ 3803 if (params->count > 1) { 3804 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3805 if (err < 0) 3806 return err; 3807 } 3808 3809 ieee80211_send_action_csa(sdata, params); 3810 3811 break; 3812 #ifdef CONFIG_MAC80211_MESH 3813 case NL80211_IFTYPE_MESH_POINT: { 3814 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3815 3816 /* changes into another band are not supported */ 3817 if (sdata->vif.bss_conf.chandef.chan->band != 3818 params->chandef.chan->band) 3819 return -EINVAL; 3820 3821 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3822 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3823 if (!ifmsh->pre_value) 3824 ifmsh->pre_value = 1; 3825 else 3826 ifmsh->pre_value++; 3827 } 3828 3829 /* see comments in the NL80211_IFTYPE_AP block */ 3830 if (params->count > 1) { 3831 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3832 if (err < 0) { 3833 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3834 return err; 3835 } 3836 } 3837 3838 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3839 ieee80211_send_action_csa(sdata, params); 3840 3841 break; 3842 } 3843 #endif 3844 default: 3845 return -EOPNOTSUPP; 3846 } 3847 3848 return 0; 3849 } 3850 3851 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3852 { 3853 sdata->vif.bss_conf.color_change_active = false; 3854 3855 ieee80211_free_next_beacon(&sdata->deflink); 3856 3857 cfg80211_color_change_aborted_notify(sdata->dev); 3858 } 3859 3860 static int 3861 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3862 struct cfg80211_csa_settings *params) 3863 { 3864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3865 struct ieee80211_local *local = sdata->local; 3866 struct ieee80211_channel_switch ch_switch; 3867 struct ieee80211_chanctx_conf *conf; 3868 struct ieee80211_chanctx *chanctx; 3869 u64 changed = 0; 3870 int err; 3871 3872 lockdep_assert_wiphy(local->hw.wiphy); 3873 3874 if (!list_empty(&local->roc_list) || local->scanning) 3875 return -EBUSY; 3876 3877 if (sdata->wdev.cac_started) 3878 return -EBUSY; 3879 3880 if (cfg80211_chandef_identical(¶ms->chandef, 3881 &sdata->vif.bss_conf.chandef)) 3882 return -EINVAL; 3883 3884 /* don't allow another channel switch if one is already active. */ 3885 if (sdata->vif.bss_conf.csa_active) 3886 return -EBUSY; 3887 3888 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3889 lockdep_is_held(&local->hw.wiphy->mtx)); 3890 if (!conf) { 3891 err = -EBUSY; 3892 goto out; 3893 } 3894 3895 if (params->chandef.chan->freq_offset) { 3896 /* this may work, but is untested */ 3897 err = -EOPNOTSUPP; 3898 goto out; 3899 } 3900 3901 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3902 3903 ch_switch.timestamp = 0; 3904 ch_switch.device_timestamp = 0; 3905 ch_switch.block_tx = params->block_tx; 3906 ch_switch.chandef = params->chandef; 3907 ch_switch.count = params->count; 3908 3909 err = drv_pre_channel_switch(sdata, &ch_switch); 3910 if (err) 3911 goto out; 3912 3913 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3914 chanctx->mode, 3915 params->radar_required); 3916 if (err) 3917 goto out; 3918 3919 /* if reservation is invalid then this will fail */ 3920 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3921 if (err) { 3922 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3923 goto out; 3924 } 3925 3926 /* if there is a color change in progress, abort it */ 3927 if (sdata->vif.bss_conf.color_change_active) 3928 ieee80211_color_change_abort(sdata); 3929 3930 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3931 if (err) { 3932 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3933 goto out; 3934 } 3935 3936 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3937 goto out; 3938 3939 sdata->deflink.csa_chandef = params->chandef; 3940 sdata->deflink.csa_block_tx = params->block_tx; 3941 sdata->vif.bss_conf.csa_active = true; 3942 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3943 3944 if (sdata->deflink.csa_block_tx) 3945 ieee80211_stop_vif_queues(local, sdata, 3946 IEEE80211_QUEUE_STOP_REASON_CSA); 3947 3948 cfg80211_ch_switch_started_notify(sdata->dev, 3949 &sdata->deflink.csa_chandef, 0, 3950 params->count, params->block_tx, 3951 sdata->vif.bss_conf.csa_punct_bitmap); 3952 3953 if (changed) { 3954 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3955 changed); 3956 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3957 } else { 3958 /* if the beacon didn't change, we can finalize immediately */ 3959 ieee80211_csa_finalize(&sdata->deflink); 3960 } 3961 3962 out: 3963 return err; 3964 } 3965 3966 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3967 struct cfg80211_csa_settings *params) 3968 { 3969 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3970 struct ieee80211_local *local = sdata->local; 3971 3972 lockdep_assert_wiphy(local->hw.wiphy); 3973 3974 return __ieee80211_channel_switch(wiphy, dev, params); 3975 } 3976 3977 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3978 { 3979 lockdep_assert_wiphy(local->hw.wiphy); 3980 3981 local->roc_cookie_counter++; 3982 3983 /* wow, you wrapped 64 bits ... more likely a bug */ 3984 if (WARN_ON(local->roc_cookie_counter == 0)) 3985 local->roc_cookie_counter++; 3986 3987 return local->roc_cookie_counter; 3988 } 3989 3990 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3991 u64 *cookie, gfp_t gfp) 3992 { 3993 unsigned long spin_flags; 3994 struct sk_buff *ack_skb; 3995 int id; 3996 3997 ack_skb = skb_copy(skb, gfp); 3998 if (!ack_skb) 3999 return -ENOMEM; 4000 4001 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4002 id = idr_alloc(&local->ack_status_frames, ack_skb, 4003 1, 0x2000, GFP_ATOMIC); 4004 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4005 4006 if (id < 0) { 4007 kfree_skb(ack_skb); 4008 return -ENOMEM; 4009 } 4010 4011 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4012 IEEE80211_SKB_CB(skb)->status_data = id; 4013 4014 *cookie = ieee80211_mgmt_tx_cookie(local); 4015 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4016 4017 return 0; 4018 } 4019 4020 static void 4021 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4022 struct wireless_dev *wdev, 4023 struct mgmt_frame_regs *upd) 4024 { 4025 struct ieee80211_local *local = wiphy_priv(wiphy); 4026 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4027 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4028 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4029 bool global_change, intf_change; 4030 4031 global_change = 4032 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4033 (local->rx_mcast_action_reg != 4034 !!(upd->global_mcast_stypes & action_mask)); 4035 local->probe_req_reg = upd->global_stypes & preq_mask; 4036 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4037 4038 intf_change = (sdata->vif.probe_req_reg != 4039 !!(upd->interface_stypes & preq_mask)) || 4040 (sdata->vif.rx_mcast_action_reg != 4041 !!(upd->interface_mcast_stypes & action_mask)); 4042 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4043 sdata->vif.rx_mcast_action_reg = 4044 upd->interface_mcast_stypes & action_mask; 4045 4046 if (!local->open_count) 4047 return; 4048 4049 if (intf_change && ieee80211_sdata_running(sdata)) 4050 drv_config_iface_filter(local, sdata, 4051 sdata->vif.probe_req_reg ? 4052 FIF_PROBE_REQ : 0, 4053 FIF_PROBE_REQ); 4054 4055 if (global_change) 4056 ieee80211_configure_filter(local); 4057 } 4058 4059 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4060 { 4061 struct ieee80211_local *local = wiphy_priv(wiphy); 4062 int ret; 4063 4064 if (local->started) 4065 return -EOPNOTSUPP; 4066 4067 ret = drv_set_antenna(local, tx_ant, rx_ant); 4068 if (ret) 4069 return ret; 4070 4071 local->rx_chains = hweight8(rx_ant); 4072 return 0; 4073 } 4074 4075 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4076 { 4077 struct ieee80211_local *local = wiphy_priv(wiphy); 4078 4079 return drv_get_antenna(local, tx_ant, rx_ant); 4080 } 4081 4082 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4083 struct net_device *dev, 4084 struct cfg80211_gtk_rekey_data *data) 4085 { 4086 struct ieee80211_local *local = wiphy_priv(wiphy); 4087 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4088 4089 if (!local->ops->set_rekey_data) 4090 return -EOPNOTSUPP; 4091 4092 drv_set_rekey_data(local, sdata, data); 4093 4094 return 0; 4095 } 4096 4097 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4098 const u8 *peer, u64 *cookie) 4099 { 4100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4101 struct ieee80211_local *local = sdata->local; 4102 struct ieee80211_qos_hdr *nullfunc; 4103 struct sk_buff *skb; 4104 int size = sizeof(*nullfunc); 4105 __le16 fc; 4106 bool qos; 4107 struct ieee80211_tx_info *info; 4108 struct sta_info *sta; 4109 struct ieee80211_chanctx_conf *chanctx_conf; 4110 enum nl80211_band band; 4111 int ret; 4112 4113 /* the lock is needed to assign the cookie later */ 4114 lockdep_assert_wiphy(local->hw.wiphy); 4115 4116 rcu_read_lock(); 4117 sta = sta_info_get_bss(sdata, peer); 4118 if (!sta) { 4119 ret = -ENOLINK; 4120 goto unlock; 4121 } 4122 4123 qos = sta->sta.wme; 4124 4125 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4126 if (WARN_ON(!chanctx_conf)) { 4127 ret = -EINVAL; 4128 goto unlock; 4129 } 4130 band = chanctx_conf->def.chan->band; 4131 4132 if (qos) { 4133 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4134 IEEE80211_STYPE_QOS_NULLFUNC | 4135 IEEE80211_FCTL_FROMDS); 4136 } else { 4137 size -= 2; 4138 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4139 IEEE80211_STYPE_NULLFUNC | 4140 IEEE80211_FCTL_FROMDS); 4141 } 4142 4143 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4144 if (!skb) { 4145 ret = -ENOMEM; 4146 goto unlock; 4147 } 4148 4149 skb->dev = dev; 4150 4151 skb_reserve(skb, local->hw.extra_tx_headroom); 4152 4153 nullfunc = skb_put(skb, size); 4154 nullfunc->frame_control = fc; 4155 nullfunc->duration_id = 0; 4156 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4157 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4158 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4159 nullfunc->seq_ctrl = 0; 4160 4161 info = IEEE80211_SKB_CB(skb); 4162 4163 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4164 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4165 info->band = band; 4166 4167 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4168 skb->priority = 7; 4169 if (qos) 4170 nullfunc->qos_ctrl = cpu_to_le16(7); 4171 4172 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4173 if (ret) { 4174 kfree_skb(skb); 4175 goto unlock; 4176 } 4177 4178 local_bh_disable(); 4179 ieee80211_xmit(sdata, sta, skb); 4180 local_bh_enable(); 4181 4182 ret = 0; 4183 unlock: 4184 rcu_read_unlock(); 4185 4186 return ret; 4187 } 4188 4189 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4190 struct wireless_dev *wdev, 4191 unsigned int link_id, 4192 struct cfg80211_chan_def *chandef) 4193 { 4194 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4195 struct ieee80211_local *local = wiphy_priv(wiphy); 4196 struct ieee80211_chanctx_conf *chanctx_conf; 4197 struct ieee80211_link_data *link; 4198 int ret = -ENODATA; 4199 4200 rcu_read_lock(); 4201 link = rcu_dereference(sdata->link[link_id]); 4202 if (!link) { 4203 ret = -ENOLINK; 4204 goto out; 4205 } 4206 4207 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4208 if (chanctx_conf) { 4209 *chandef = link->conf->chandef; 4210 ret = 0; 4211 } else if (local->open_count > 0 && 4212 local->open_count == local->monitors && 4213 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4214 if (local->use_chanctx) 4215 *chandef = local->monitor_chandef; 4216 else 4217 *chandef = local->_oper_chandef; 4218 ret = 0; 4219 } 4220 out: 4221 rcu_read_unlock(); 4222 4223 return ret; 4224 } 4225 4226 #ifdef CONFIG_PM 4227 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4228 { 4229 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4230 } 4231 #endif 4232 4233 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4234 struct net_device *dev, 4235 struct cfg80211_qos_map *qos_map) 4236 { 4237 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4238 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4239 4240 if (qos_map) { 4241 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4242 if (!new_qos_map) 4243 return -ENOMEM; 4244 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4245 } else { 4246 /* A NULL qos_map was passed to disable QoS mapping */ 4247 new_qos_map = NULL; 4248 } 4249 4250 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4251 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4252 if (old_qos_map) 4253 kfree_rcu(old_qos_map, rcu_head); 4254 4255 return 0; 4256 } 4257 4258 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4259 struct net_device *dev, 4260 unsigned int link_id, 4261 struct cfg80211_chan_def *chandef) 4262 { 4263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4264 struct ieee80211_link_data *link; 4265 int ret; 4266 u64 changed = 0; 4267 4268 link = sdata_dereference(sdata->link[link_id], sdata); 4269 4270 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4271 if (ret == 0) 4272 ieee80211_link_info_change_notify(sdata, link, changed); 4273 4274 return ret; 4275 } 4276 4277 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4278 u8 tsid, const u8 *peer, u8 up, 4279 u16 admitted_time) 4280 { 4281 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4282 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4283 int ac = ieee802_1d_to_ac[up]; 4284 4285 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4286 return -EOPNOTSUPP; 4287 4288 if (!(sdata->wmm_acm & BIT(up))) 4289 return -EINVAL; 4290 4291 if (ifmgd->tx_tspec[ac].admitted_time) 4292 return -EBUSY; 4293 4294 if (admitted_time) { 4295 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4296 ifmgd->tx_tspec[ac].tsid = tsid; 4297 ifmgd->tx_tspec[ac].up = up; 4298 } 4299 4300 return 0; 4301 } 4302 4303 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4304 u8 tsid, const u8 *peer) 4305 { 4306 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4307 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4308 struct ieee80211_local *local = wiphy_priv(wiphy); 4309 int ac; 4310 4311 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4312 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4313 4314 /* skip unused entries */ 4315 if (!tx_tspec->admitted_time) 4316 continue; 4317 4318 if (tx_tspec->tsid != tsid) 4319 continue; 4320 4321 /* due to this new packets will be reassigned to non-ACM ACs */ 4322 tx_tspec->up = -1; 4323 4324 /* Make sure that all packets have been sent to avoid to 4325 * restore the QoS params on packets that are still on the 4326 * queues. 4327 */ 4328 synchronize_net(); 4329 ieee80211_flush_queues(local, sdata, false); 4330 4331 /* restore the normal QoS parameters 4332 * (unconditionally to avoid races) 4333 */ 4334 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4335 tx_tspec->downgraded = false; 4336 ieee80211_sta_handle_tspec_ac_params(sdata); 4337 4338 /* finally clear all the data */ 4339 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4340 4341 return 0; 4342 } 4343 4344 return -ENOENT; 4345 } 4346 4347 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4348 u8 inst_id, 4349 enum nl80211_nan_func_term_reason reason, 4350 gfp_t gfp) 4351 { 4352 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4353 struct cfg80211_nan_func *func; 4354 u64 cookie; 4355 4356 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4357 return; 4358 4359 spin_lock_bh(&sdata->u.nan.func_lock); 4360 4361 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4362 if (WARN_ON(!func)) { 4363 spin_unlock_bh(&sdata->u.nan.func_lock); 4364 return; 4365 } 4366 4367 cookie = func->cookie; 4368 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4369 4370 spin_unlock_bh(&sdata->u.nan.func_lock); 4371 4372 cfg80211_free_nan_func(func); 4373 4374 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4375 reason, cookie, gfp); 4376 } 4377 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4378 4379 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4380 struct cfg80211_nan_match_params *match, 4381 gfp_t gfp) 4382 { 4383 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4384 struct cfg80211_nan_func *func; 4385 4386 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4387 return; 4388 4389 spin_lock_bh(&sdata->u.nan.func_lock); 4390 4391 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4392 if (WARN_ON(!func)) { 4393 spin_unlock_bh(&sdata->u.nan.func_lock); 4394 return; 4395 } 4396 match->cookie = func->cookie; 4397 4398 spin_unlock_bh(&sdata->u.nan.func_lock); 4399 4400 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4401 } 4402 EXPORT_SYMBOL(ieee80211_nan_func_match); 4403 4404 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4405 struct net_device *dev, 4406 const bool enabled) 4407 { 4408 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4409 4410 sdata->u.ap.multicast_to_unicast = enabled; 4411 4412 return 0; 4413 } 4414 4415 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4416 struct txq_info *txqi) 4417 { 4418 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4419 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4420 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4421 } 4422 4423 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4424 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4425 txqstats->backlog_packets = txqi->tin.backlog_packets; 4426 } 4427 4428 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4429 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4430 txqstats->flows = txqi->tin.flows; 4431 } 4432 4433 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4434 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4435 txqstats->drops = txqi->cstats.drop_count; 4436 } 4437 4438 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4439 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4440 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4441 } 4442 4443 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4444 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4445 txqstats->overlimit = txqi->tin.overlimit; 4446 } 4447 4448 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4449 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4450 txqstats->collisions = txqi->tin.collisions; 4451 } 4452 4453 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4454 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4455 txqstats->tx_bytes = txqi->tin.tx_bytes; 4456 } 4457 4458 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4459 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4460 txqstats->tx_packets = txqi->tin.tx_packets; 4461 } 4462 } 4463 4464 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4465 struct wireless_dev *wdev, 4466 struct cfg80211_txq_stats *txqstats) 4467 { 4468 struct ieee80211_local *local = wiphy_priv(wiphy); 4469 struct ieee80211_sub_if_data *sdata; 4470 int ret = 0; 4471 4472 spin_lock_bh(&local->fq.lock); 4473 rcu_read_lock(); 4474 4475 if (wdev) { 4476 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4477 if (!sdata->vif.txq) { 4478 ret = 1; 4479 goto out; 4480 } 4481 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4482 } else { 4483 /* phy stats */ 4484 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4485 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4486 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4487 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4488 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4489 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4490 txqstats->backlog_packets = local->fq.backlog; 4491 txqstats->backlog_bytes = local->fq.memory_usage; 4492 txqstats->overlimit = local->fq.overlimit; 4493 txqstats->overmemory = local->fq.overmemory; 4494 txqstats->collisions = local->fq.collisions; 4495 txqstats->max_flows = local->fq.flows_cnt; 4496 } 4497 4498 out: 4499 rcu_read_unlock(); 4500 spin_unlock_bh(&local->fq.lock); 4501 4502 return ret; 4503 } 4504 4505 static int 4506 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4507 struct net_device *dev, 4508 struct cfg80211_ftm_responder_stats *ftm_stats) 4509 { 4510 struct ieee80211_local *local = wiphy_priv(wiphy); 4511 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4512 4513 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4514 } 4515 4516 static int 4517 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4518 struct cfg80211_pmsr_request *request) 4519 { 4520 struct ieee80211_local *local = wiphy_priv(wiphy); 4521 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4522 4523 return drv_start_pmsr(local, sdata, request); 4524 } 4525 4526 static void 4527 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4528 struct cfg80211_pmsr_request *request) 4529 { 4530 struct ieee80211_local *local = wiphy_priv(wiphy); 4531 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4532 4533 return drv_abort_pmsr(local, sdata, request); 4534 } 4535 4536 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4537 struct net_device *dev, 4538 struct cfg80211_tid_config *tid_conf) 4539 { 4540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4541 struct sta_info *sta; 4542 4543 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4544 4545 if (!sdata->local->ops->set_tid_config) 4546 return -EOPNOTSUPP; 4547 4548 if (!tid_conf->peer) 4549 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4550 4551 sta = sta_info_get_bss(sdata, tid_conf->peer); 4552 if (!sta) 4553 return -ENOENT; 4554 4555 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4556 } 4557 4558 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4559 struct net_device *dev, 4560 const u8 *peer, u8 tids) 4561 { 4562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4563 struct sta_info *sta; 4564 4565 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4566 4567 if (!sdata->local->ops->reset_tid_config) 4568 return -EOPNOTSUPP; 4569 4570 if (!peer) 4571 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4572 4573 sta = sta_info_get_bss(sdata, peer); 4574 if (!sta) 4575 return -ENOENT; 4576 4577 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4578 } 4579 4580 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4581 struct cfg80211_sar_specs *sar) 4582 { 4583 struct ieee80211_local *local = wiphy_priv(wiphy); 4584 4585 if (!local->ops->set_sar_specs) 4586 return -EOPNOTSUPP; 4587 4588 return local->ops->set_sar_specs(&local->hw, sar); 4589 } 4590 4591 static int 4592 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4593 u64 *changed) 4594 { 4595 switch (sdata->vif.type) { 4596 case NL80211_IFTYPE_AP: { 4597 int ret; 4598 4599 if (!sdata->deflink.u.ap.next_beacon) 4600 return -EINVAL; 4601 4602 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4603 sdata->deflink.u.ap.next_beacon, 4604 NULL, NULL, changed); 4605 ieee80211_free_next_beacon(&sdata->deflink); 4606 4607 if (ret < 0) 4608 return ret; 4609 4610 break; 4611 } 4612 default: 4613 WARN_ON_ONCE(1); 4614 return -EINVAL; 4615 } 4616 4617 return 0; 4618 } 4619 4620 static int 4621 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4622 struct cfg80211_color_change_settings *params, 4623 u64 *changed) 4624 { 4625 struct ieee80211_color_change_settings color_change = {}; 4626 int err; 4627 4628 switch (sdata->vif.type) { 4629 case NL80211_IFTYPE_AP: 4630 sdata->deflink.u.ap.next_beacon = 4631 cfg80211_beacon_dup(¶ms->beacon_next); 4632 if (!sdata->deflink.u.ap.next_beacon) 4633 return -ENOMEM; 4634 4635 if (params->count <= 1) 4636 break; 4637 4638 color_change.counter_offset_beacon = 4639 params->counter_offset_beacon; 4640 color_change.counter_offset_presp = 4641 params->counter_offset_presp; 4642 color_change.count = params->count; 4643 4644 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4645 ¶ms->beacon_color_change, 4646 NULL, &color_change, changed); 4647 if (err < 0) { 4648 ieee80211_free_next_beacon(&sdata->deflink); 4649 return err; 4650 } 4651 break; 4652 default: 4653 return -EOPNOTSUPP; 4654 } 4655 4656 return 0; 4657 } 4658 4659 static void 4660 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4661 u8 color, int enable, u64 changed) 4662 { 4663 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4664 4665 sdata->vif.bss_conf.he_bss_color.color = color; 4666 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4667 changed |= BSS_CHANGED_HE_BSS_COLOR; 4668 4669 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4670 4671 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4672 struct ieee80211_sub_if_data *child; 4673 4674 list_for_each_entry(child, &sdata->local->interfaces, list) { 4675 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4676 child->vif.bss_conf.he_bss_color.color = color; 4677 child->vif.bss_conf.he_bss_color.enabled = enable; 4678 ieee80211_link_info_change_notify(child, 4679 &child->deflink, 4680 BSS_CHANGED_HE_BSS_COLOR); 4681 } 4682 } 4683 } 4684 } 4685 4686 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4687 { 4688 struct ieee80211_local *local = sdata->local; 4689 u64 changed = 0; 4690 int err; 4691 4692 lockdep_assert_wiphy(local->hw.wiphy); 4693 4694 sdata->vif.bss_conf.color_change_active = false; 4695 4696 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4697 if (err) { 4698 cfg80211_color_change_aborted_notify(sdata->dev); 4699 return err; 4700 } 4701 4702 ieee80211_color_change_bss_config_notify(sdata, 4703 sdata->vif.bss_conf.color_change_color, 4704 1, changed); 4705 cfg80211_color_change_notify(sdata->dev); 4706 4707 return 0; 4708 } 4709 4710 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4711 struct wiphy_work *work) 4712 { 4713 struct ieee80211_sub_if_data *sdata = 4714 container_of(work, struct ieee80211_sub_if_data, 4715 deflink.color_change_finalize_work); 4716 struct ieee80211_local *local = sdata->local; 4717 4718 lockdep_assert_wiphy(local->hw.wiphy); 4719 4720 /* AP might have been stopped while waiting for the lock. */ 4721 if (!sdata->vif.bss_conf.color_change_active) 4722 return; 4723 4724 if (!ieee80211_sdata_running(sdata)) 4725 return; 4726 4727 ieee80211_color_change_finalize(sdata); 4728 } 4729 4730 void ieee80211_color_collision_detection_work(struct work_struct *work) 4731 { 4732 struct delayed_work *delayed_work = to_delayed_work(work); 4733 struct ieee80211_link_data *link = 4734 container_of(delayed_work, struct ieee80211_link_data, 4735 color_collision_detect_work); 4736 struct ieee80211_sub_if_data *sdata = link->sdata; 4737 4738 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4739 } 4740 4741 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4742 { 4743 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4744 4745 wiphy_work_queue(sdata->local->hw.wiphy, 4746 &sdata->deflink.color_change_finalize_work); 4747 } 4748 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4749 4750 void 4751 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4752 u64 color_bitmap, gfp_t gfp) 4753 { 4754 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4755 struct ieee80211_link_data *link = &sdata->deflink; 4756 4757 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4758 return; 4759 4760 if (delayed_work_pending(&link->color_collision_detect_work)) 4761 return; 4762 4763 link->color_bitmap = color_bitmap; 4764 /* queue the color collision detection event every 500 ms in order to 4765 * avoid sending too much netlink messages to userspace. 4766 */ 4767 ieee80211_queue_delayed_work(&sdata->local->hw, 4768 &link->color_collision_detect_work, 4769 msecs_to_jiffies(500)); 4770 } 4771 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4772 4773 static int 4774 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4775 struct cfg80211_color_change_settings *params) 4776 { 4777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4778 struct ieee80211_local *local = sdata->local; 4779 u64 changed = 0; 4780 int err; 4781 4782 lockdep_assert_wiphy(local->hw.wiphy); 4783 4784 if (sdata->vif.bss_conf.nontransmitted) 4785 return -EINVAL; 4786 4787 /* don't allow another color change if one is already active or if csa 4788 * is active 4789 */ 4790 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4791 err = -EBUSY; 4792 goto out; 4793 } 4794 4795 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4796 if (err) 4797 goto out; 4798 4799 sdata->vif.bss_conf.color_change_active = true; 4800 sdata->vif.bss_conf.color_change_color = params->color; 4801 4802 cfg80211_color_change_started_notify(sdata->dev, params->count); 4803 4804 if (changed) 4805 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4806 else 4807 /* if the beacon didn't change, we can finalize immediately */ 4808 ieee80211_color_change_finalize(sdata); 4809 4810 out: 4811 4812 return err; 4813 } 4814 4815 static int 4816 ieee80211_set_radar_background(struct wiphy *wiphy, 4817 struct cfg80211_chan_def *chandef) 4818 { 4819 struct ieee80211_local *local = wiphy_priv(wiphy); 4820 4821 if (!local->ops->set_radar_background) 4822 return -EOPNOTSUPP; 4823 4824 return local->ops->set_radar_background(&local->hw, chandef); 4825 } 4826 4827 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4828 struct wireless_dev *wdev, 4829 unsigned int link_id) 4830 { 4831 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4832 4833 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4834 4835 if (wdev->use_4addr) 4836 return -EOPNOTSUPP; 4837 4838 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4839 } 4840 4841 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4842 struct wireless_dev *wdev, 4843 unsigned int link_id) 4844 { 4845 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4846 4847 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4848 4849 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4850 } 4851 4852 static int sta_add_link_station(struct ieee80211_local *local, 4853 struct ieee80211_sub_if_data *sdata, 4854 struct link_station_parameters *params) 4855 { 4856 struct sta_info *sta; 4857 int ret; 4858 4859 sta = sta_info_get_bss(sdata, params->mld_mac); 4860 if (!sta) 4861 return -ENOENT; 4862 4863 if (!sta->sta.valid_links) 4864 return -EINVAL; 4865 4866 if (sta->sta.valid_links & BIT(params->link_id)) 4867 return -EALREADY; 4868 4869 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4870 if (ret) 4871 return ret; 4872 4873 ret = sta_link_apply_parameters(local, sta, true, params); 4874 if (ret) { 4875 ieee80211_sta_free_link(sta, params->link_id); 4876 return ret; 4877 } 4878 4879 /* ieee80211_sta_activate_link frees the link upon failure */ 4880 return ieee80211_sta_activate_link(sta, params->link_id); 4881 } 4882 4883 static int 4884 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4885 struct link_station_parameters *params) 4886 { 4887 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4888 struct ieee80211_local *local = wiphy_priv(wiphy); 4889 4890 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4891 4892 return sta_add_link_station(local, sdata, params); 4893 } 4894 4895 static int sta_mod_link_station(struct ieee80211_local *local, 4896 struct ieee80211_sub_if_data *sdata, 4897 struct link_station_parameters *params) 4898 { 4899 struct sta_info *sta; 4900 4901 sta = sta_info_get_bss(sdata, params->mld_mac); 4902 if (!sta) 4903 return -ENOENT; 4904 4905 if (!(sta->sta.valid_links & BIT(params->link_id))) 4906 return -EINVAL; 4907 4908 return sta_link_apply_parameters(local, sta, false, params); 4909 } 4910 4911 static int 4912 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4913 struct link_station_parameters *params) 4914 { 4915 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4916 struct ieee80211_local *local = wiphy_priv(wiphy); 4917 4918 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4919 4920 return sta_mod_link_station(local, sdata, params); 4921 } 4922 4923 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4924 struct link_station_del_parameters *params) 4925 { 4926 struct sta_info *sta; 4927 4928 sta = sta_info_get_bss(sdata, params->mld_mac); 4929 if (!sta) 4930 return -ENOENT; 4931 4932 if (!(sta->sta.valid_links & BIT(params->link_id))) 4933 return -EINVAL; 4934 4935 /* must not create a STA without links */ 4936 if (sta->sta.valid_links == BIT(params->link_id)) 4937 return -EINVAL; 4938 4939 ieee80211_sta_remove_link(sta, params->link_id); 4940 4941 return 0; 4942 } 4943 4944 static int 4945 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4946 struct link_station_del_parameters *params) 4947 { 4948 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4949 4950 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4951 4952 return sta_del_link_station(sdata, params); 4953 } 4954 4955 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4956 struct net_device *dev, 4957 struct cfg80211_set_hw_timestamp *hwts) 4958 { 4959 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4960 struct ieee80211_local *local = sdata->local; 4961 4962 if (!local->ops->set_hw_timestamp) 4963 return -EOPNOTSUPP; 4964 4965 if (!check_sdata_in_driver(sdata)) 4966 return -EIO; 4967 4968 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 4969 } 4970 4971 const struct cfg80211_ops mac80211_config_ops = { 4972 .add_virtual_intf = ieee80211_add_iface, 4973 .del_virtual_intf = ieee80211_del_iface, 4974 .change_virtual_intf = ieee80211_change_iface, 4975 .start_p2p_device = ieee80211_start_p2p_device, 4976 .stop_p2p_device = ieee80211_stop_p2p_device, 4977 .add_key = ieee80211_add_key, 4978 .del_key = ieee80211_del_key, 4979 .get_key = ieee80211_get_key, 4980 .set_default_key = ieee80211_config_default_key, 4981 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4982 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4983 .start_ap = ieee80211_start_ap, 4984 .change_beacon = ieee80211_change_beacon, 4985 .stop_ap = ieee80211_stop_ap, 4986 .add_station = ieee80211_add_station, 4987 .del_station = ieee80211_del_station, 4988 .change_station = ieee80211_change_station, 4989 .get_station = ieee80211_get_station, 4990 .dump_station = ieee80211_dump_station, 4991 .dump_survey = ieee80211_dump_survey, 4992 #ifdef CONFIG_MAC80211_MESH 4993 .add_mpath = ieee80211_add_mpath, 4994 .del_mpath = ieee80211_del_mpath, 4995 .change_mpath = ieee80211_change_mpath, 4996 .get_mpath = ieee80211_get_mpath, 4997 .dump_mpath = ieee80211_dump_mpath, 4998 .get_mpp = ieee80211_get_mpp, 4999 .dump_mpp = ieee80211_dump_mpp, 5000 .update_mesh_config = ieee80211_update_mesh_config, 5001 .get_mesh_config = ieee80211_get_mesh_config, 5002 .join_mesh = ieee80211_join_mesh, 5003 .leave_mesh = ieee80211_leave_mesh, 5004 #endif 5005 .join_ocb = ieee80211_join_ocb, 5006 .leave_ocb = ieee80211_leave_ocb, 5007 .change_bss = ieee80211_change_bss, 5008 .inform_bss = ieee80211_inform_bss, 5009 .set_txq_params = ieee80211_set_txq_params, 5010 .set_monitor_channel = ieee80211_set_monitor_channel, 5011 .suspend = ieee80211_suspend, 5012 .resume = ieee80211_resume, 5013 .scan = ieee80211_scan, 5014 .abort_scan = ieee80211_abort_scan, 5015 .sched_scan_start = ieee80211_sched_scan_start, 5016 .sched_scan_stop = ieee80211_sched_scan_stop, 5017 .auth = ieee80211_auth, 5018 .assoc = ieee80211_assoc, 5019 .deauth = ieee80211_deauth, 5020 .disassoc = ieee80211_disassoc, 5021 .join_ibss = ieee80211_join_ibss, 5022 .leave_ibss = ieee80211_leave_ibss, 5023 .set_mcast_rate = ieee80211_set_mcast_rate, 5024 .set_wiphy_params = ieee80211_set_wiphy_params, 5025 .set_tx_power = ieee80211_set_tx_power, 5026 .get_tx_power = ieee80211_get_tx_power, 5027 .rfkill_poll = ieee80211_rfkill_poll, 5028 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5029 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5030 .set_power_mgmt = ieee80211_set_power_mgmt, 5031 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5032 .remain_on_channel = ieee80211_remain_on_channel, 5033 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5034 .mgmt_tx = ieee80211_mgmt_tx, 5035 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5036 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5037 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5038 .update_mgmt_frame_registrations = 5039 ieee80211_update_mgmt_frame_registrations, 5040 .set_antenna = ieee80211_set_antenna, 5041 .get_antenna = ieee80211_get_antenna, 5042 .set_rekey_data = ieee80211_set_rekey_data, 5043 .tdls_oper = ieee80211_tdls_oper, 5044 .tdls_mgmt = ieee80211_tdls_mgmt, 5045 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5046 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5047 .probe_client = ieee80211_probe_client, 5048 .set_noack_map = ieee80211_set_noack_map, 5049 #ifdef CONFIG_PM 5050 .set_wakeup = ieee80211_set_wakeup, 5051 #endif 5052 .get_channel = ieee80211_cfg_get_channel, 5053 .start_radar_detection = ieee80211_start_radar_detection, 5054 .end_cac = ieee80211_end_cac, 5055 .channel_switch = ieee80211_channel_switch, 5056 .set_qos_map = ieee80211_set_qos_map, 5057 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5058 .add_tx_ts = ieee80211_add_tx_ts, 5059 .del_tx_ts = ieee80211_del_tx_ts, 5060 .start_nan = ieee80211_start_nan, 5061 .stop_nan = ieee80211_stop_nan, 5062 .nan_change_conf = ieee80211_nan_change_conf, 5063 .add_nan_func = ieee80211_add_nan_func, 5064 .del_nan_func = ieee80211_del_nan_func, 5065 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5066 .tx_control_port = ieee80211_tx_control_port, 5067 .get_txq_stats = ieee80211_get_txq_stats, 5068 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5069 .start_pmsr = ieee80211_start_pmsr, 5070 .abort_pmsr = ieee80211_abort_pmsr, 5071 .probe_mesh_link = ieee80211_probe_mesh_link, 5072 .set_tid_config = ieee80211_set_tid_config, 5073 .reset_tid_config = ieee80211_reset_tid_config, 5074 .set_sar_specs = ieee80211_set_sar_specs, 5075 .color_change = ieee80211_color_change, 5076 .set_radar_background = ieee80211_set_radar_background, 5077 .add_intf_link = ieee80211_add_intf_link, 5078 .del_intf_link = ieee80211_del_intf_link, 5079 .add_link_station = ieee80211_add_link_station, 5080 .mod_link_station = ieee80211_mod_link_station, 5081 .del_link_station = ieee80211_del_link_station, 5082 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5083 }; 5084