1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2024 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 lockdep_assert_wiphy(local->hw.wiphy); 218 219 ret = ieee80211_if_change_type(sdata, type); 220 if (ret) 221 return ret; 222 223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 225 ieee80211_check_fast_rx_iface(sdata); 226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 228 229 if (params->use_4addr == ifmgd->use_4addr) 230 return 0; 231 232 /* FIXME: no support for 4-addr MLO yet */ 233 if (ieee80211_vif_is_mld(&sdata->vif)) 234 return -EOPNOTSUPP; 235 236 sdata->u.mgd.use_4addr = params->use_4addr; 237 if (!ifmgd->associated) 238 return 0; 239 240 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 241 if (sta) 242 drv_sta_set_4addr(local, sdata, &sta->sta, 243 params->use_4addr); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 lockdep_assert_wiphy(sdata->local->hw.wiphy); 265 266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 456 457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 458 ret = ieee80211_set_tx_key(key); 459 460 return ret; 461 } 462 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 464 int link_id, u8 key_idx, bool pairwise, 465 const u8 *mac_addr, struct key_params *params) 466 { 467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 468 struct ieee80211_link_data *link = 469 ieee80211_link_or_deflink(sdata, link_id, false); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta = NULL; 472 struct ieee80211_key *key; 473 int err; 474 475 lockdep_assert_wiphy(local->hw.wiphy); 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 if (mac_addr) { 514 sta = sta_info_get_bss(sdata, mac_addr); 515 /* 516 * The ASSOC test makes sure the driver is ready to 517 * receive the key. When wpa_supplicant has roamed 518 * using FT, it attempts to set the key before 519 * association has completed, this rejects that attempt 520 * so it will set the key again after association. 521 * 522 * TODO: accept the key if we have a station entry and 523 * add it to the device after the station. 524 */ 525 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 526 ieee80211_key_free_unused(key); 527 return -ENOENT; 528 } 529 } 530 531 switch (sdata->vif.type) { 532 case NL80211_IFTYPE_STATION: 533 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 534 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 535 break; 536 case NL80211_IFTYPE_AP: 537 case NL80211_IFTYPE_AP_VLAN: 538 /* Keys without a station are used for TX only */ 539 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 540 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 541 break; 542 case NL80211_IFTYPE_ADHOC: 543 /* no MFP (yet) */ 544 break; 545 case NL80211_IFTYPE_MESH_POINT: 546 #ifdef CONFIG_MAC80211_MESH 547 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 548 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 549 break; 550 #endif 551 case NL80211_IFTYPE_WDS: 552 case NL80211_IFTYPE_MONITOR: 553 case NL80211_IFTYPE_P2P_DEVICE: 554 case NL80211_IFTYPE_NAN: 555 case NL80211_IFTYPE_UNSPECIFIED: 556 case NUM_NL80211_IFTYPES: 557 case NL80211_IFTYPE_P2P_CLIENT: 558 case NL80211_IFTYPE_P2P_GO: 559 case NL80211_IFTYPE_OCB: 560 /* shouldn't happen */ 561 WARN_ON_ONCE(1); 562 break; 563 } 564 565 err = ieee80211_key_link(key, link, sta); 566 /* KRACK protection, shouldn't happen but just silently accept key */ 567 if (err == -EALREADY) 568 err = 0; 569 570 return err; 571 } 572 573 static struct ieee80211_key * 574 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 575 u8 key_idx, bool pairwise, const u8 *mac_addr) 576 { 577 struct ieee80211_local *local __maybe_unused = sdata->local; 578 struct ieee80211_link_data *link = &sdata->deflink; 579 struct ieee80211_key *key; 580 581 if (link_id >= 0) { 582 link = sdata_dereference(sdata->link[link_id], sdata); 583 if (!link) 584 return NULL; 585 } 586 587 if (mac_addr) { 588 struct sta_info *sta; 589 struct link_sta_info *link_sta; 590 591 sta = sta_info_get_bss(sdata, mac_addr); 592 if (!sta) 593 return NULL; 594 595 if (link_id >= 0) { 596 link_sta = rcu_dereference_check(sta->link[link_id], 597 lockdep_is_held(&local->hw.wiphy->mtx)); 598 if (!link_sta) 599 return NULL; 600 } else { 601 link_sta = &sta->deflink; 602 } 603 604 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 605 return wiphy_dereference(local->hw.wiphy, 606 sta->ptk[key_idx]); 607 608 if (!pairwise && 609 key_idx < NUM_DEFAULT_KEYS + 610 NUM_DEFAULT_MGMT_KEYS + 611 NUM_DEFAULT_BEACON_KEYS) 612 return wiphy_dereference(local->hw.wiphy, 613 link_sta->gtk[key_idx]); 614 615 return NULL; 616 } 617 618 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 619 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 620 621 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 622 if (key) 623 return key; 624 625 /* or maybe it was a WEP key */ 626 if (key_idx < NUM_DEFAULT_KEYS) 627 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 628 629 return NULL; 630 } 631 632 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 633 int link_id, u8 key_idx, bool pairwise, 634 const u8 *mac_addr) 635 { 636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 637 struct ieee80211_local *local = sdata->local; 638 struct ieee80211_key *key; 639 640 lockdep_assert_wiphy(local->hw.wiphy); 641 642 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 643 if (!key) 644 return -ENOENT; 645 646 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 647 648 return 0; 649 } 650 651 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 652 int link_id, u8 key_idx, bool pairwise, 653 const u8 *mac_addr, void *cookie, 654 void (*callback)(void *cookie, 655 struct key_params *params)) 656 { 657 struct ieee80211_sub_if_data *sdata; 658 u8 seq[6] = {0}; 659 struct key_params params; 660 struct ieee80211_key *key; 661 u64 pn64; 662 u32 iv32; 663 u16 iv16; 664 int err = -ENOENT; 665 struct ieee80211_key_seq kseq = {}; 666 667 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 668 669 rcu_read_lock(); 670 671 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 672 if (!key) 673 goto out; 674 675 memset(¶ms, 0, sizeof(params)); 676 677 params.cipher = key->conf.cipher; 678 679 switch (key->conf.cipher) { 680 case WLAN_CIPHER_SUITE_TKIP: 681 pn64 = atomic64_read(&key->conf.tx_pn); 682 iv32 = TKIP_PN_TO_IV32(pn64); 683 iv16 = TKIP_PN_TO_IV16(pn64); 684 685 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 686 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 687 drv_get_key_seq(sdata->local, key, &kseq); 688 iv32 = kseq.tkip.iv32; 689 iv16 = kseq.tkip.iv16; 690 } 691 692 seq[0] = iv16 & 0xff; 693 seq[1] = (iv16 >> 8) & 0xff; 694 seq[2] = iv32 & 0xff; 695 seq[3] = (iv32 >> 8) & 0xff; 696 seq[4] = (iv32 >> 16) & 0xff; 697 seq[5] = (iv32 >> 24) & 0xff; 698 params.seq = seq; 699 params.seq_len = 6; 700 break; 701 case WLAN_CIPHER_SUITE_CCMP: 702 case WLAN_CIPHER_SUITE_CCMP_256: 703 case WLAN_CIPHER_SUITE_AES_CMAC: 704 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 705 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 706 offsetof(typeof(kseq), aes_cmac)); 707 fallthrough; 708 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 709 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 710 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 711 offsetof(typeof(kseq), aes_gmac)); 712 fallthrough; 713 case WLAN_CIPHER_SUITE_GCMP: 714 case WLAN_CIPHER_SUITE_GCMP_256: 715 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 716 offsetof(typeof(kseq), gcmp)); 717 718 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 719 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 720 drv_get_key_seq(sdata->local, key, &kseq); 721 memcpy(seq, kseq.ccmp.pn, 6); 722 } else { 723 pn64 = atomic64_read(&key->conf.tx_pn); 724 seq[0] = pn64; 725 seq[1] = pn64 >> 8; 726 seq[2] = pn64 >> 16; 727 seq[3] = pn64 >> 24; 728 seq[4] = pn64 >> 32; 729 seq[5] = pn64 >> 40; 730 } 731 params.seq = seq; 732 params.seq_len = 6; 733 break; 734 default: 735 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 736 break; 737 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 738 break; 739 drv_get_key_seq(sdata->local, key, &kseq); 740 params.seq = kseq.hw.seq; 741 params.seq_len = kseq.hw.seq_len; 742 break; 743 } 744 745 params.key = key->conf.key; 746 params.key_len = key->conf.keylen; 747 748 callback(cookie, ¶ms); 749 err = 0; 750 751 out: 752 rcu_read_unlock(); 753 return err; 754 } 755 756 static int ieee80211_config_default_key(struct wiphy *wiphy, 757 struct net_device *dev, 758 int link_id, u8 key_idx, bool uni, 759 bool multi) 760 { 761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 762 struct ieee80211_link_data *link = 763 ieee80211_link_or_deflink(sdata, link_id, false); 764 765 if (IS_ERR(link)) 766 return PTR_ERR(link); 767 768 ieee80211_set_default_key(link, key_idx, uni, multi); 769 770 return 0; 771 } 772 773 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 774 struct net_device *dev, 775 int link_id, u8 key_idx) 776 { 777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 778 struct ieee80211_link_data *link = 779 ieee80211_link_or_deflink(sdata, link_id, true); 780 781 if (IS_ERR(link)) 782 return PTR_ERR(link); 783 784 ieee80211_set_default_mgmt_key(link, key_idx); 785 786 return 0; 787 } 788 789 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 790 struct net_device *dev, 791 int link_id, u8 key_idx) 792 { 793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 794 struct ieee80211_link_data *link = 795 ieee80211_link_or_deflink(sdata, link_id, true); 796 797 if (IS_ERR(link)) 798 return PTR_ERR(link); 799 800 ieee80211_set_default_beacon_key(link, key_idx); 801 802 return 0; 803 } 804 805 void sta_set_rate_info_tx(struct sta_info *sta, 806 const struct ieee80211_tx_rate *rate, 807 struct rate_info *rinfo) 808 { 809 rinfo->flags = 0; 810 if (rate->flags & IEEE80211_TX_RC_MCS) { 811 rinfo->flags |= RATE_INFO_FLAGS_MCS; 812 rinfo->mcs = rate->idx; 813 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 814 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 815 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 816 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 817 } else { 818 struct ieee80211_supported_band *sband; 819 820 sband = ieee80211_get_sband(sta->sdata); 821 WARN_ON_ONCE(sband && !sband->bitrates); 822 if (sband && sband->bitrates) 823 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 824 } 825 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 826 rinfo->bw = RATE_INFO_BW_40; 827 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 828 rinfo->bw = RATE_INFO_BW_80; 829 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 830 rinfo->bw = RATE_INFO_BW_160; 831 else 832 rinfo->bw = RATE_INFO_BW_20; 833 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 834 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 835 } 836 837 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 838 int idx, u8 *mac, struct station_info *sinfo) 839 { 840 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 841 struct ieee80211_local *local = sdata->local; 842 struct sta_info *sta; 843 int ret = -ENOENT; 844 845 lockdep_assert_wiphy(local->hw.wiphy); 846 847 sta = sta_info_get_by_idx(sdata, idx); 848 if (sta) { 849 ret = 0; 850 memcpy(mac, sta->sta.addr, ETH_ALEN); 851 sta_set_sinfo(sta, sinfo, true); 852 } 853 854 return ret; 855 } 856 857 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 858 int idx, struct survey_info *survey) 859 { 860 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 861 862 return drv_get_survey(local, idx, survey); 863 } 864 865 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 866 const u8 *mac, struct station_info *sinfo) 867 { 868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 869 struct ieee80211_local *local = sdata->local; 870 struct sta_info *sta; 871 int ret = -ENOENT; 872 873 lockdep_assert_wiphy(local->hw.wiphy); 874 875 sta = sta_info_get_bss(sdata, mac); 876 if (sta) { 877 ret = 0; 878 sta_set_sinfo(sta, sinfo, true); 879 } 880 881 return ret; 882 } 883 884 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 885 struct cfg80211_chan_def *chandef) 886 { 887 struct ieee80211_local *local = wiphy_priv(wiphy); 888 struct ieee80211_sub_if_data *sdata; 889 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 890 int ret; 891 892 lockdep_assert_wiphy(local->hw.wiphy); 893 894 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 895 &chanreq.oper)) 896 return 0; 897 898 sdata = wiphy_dereference(local->hw.wiphy, 899 local->monitor_sdata); 900 if (!sdata) 901 goto done; 902 903 if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 904 &chanreq.oper)) 905 return 0; 906 907 ieee80211_link_release_channel(&sdata->deflink); 908 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 909 IEEE80211_CHANCTX_EXCLUSIVE); 910 if (ret) 911 return ret; 912 done: 913 local->monitor_chanreq = chanreq; 914 return 0; 915 } 916 917 static int 918 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 919 const u8 *resp, size_t resp_len, 920 const struct ieee80211_csa_settings *csa, 921 const struct ieee80211_color_change_settings *cca, 922 struct ieee80211_link_data *link) 923 { 924 struct probe_resp *new, *old; 925 926 if (!resp || !resp_len) 927 return 1; 928 929 old = sdata_dereference(link->u.ap.probe_resp, sdata); 930 931 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 932 if (!new) 933 return -ENOMEM; 934 935 new->len = resp_len; 936 memcpy(new->data, resp, resp_len); 937 938 if (csa) 939 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 940 csa->n_counter_offsets_presp * 941 sizeof(new->cntdwn_counter_offsets[0])); 942 else if (cca) 943 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 944 945 rcu_assign_pointer(link->u.ap.probe_resp, new); 946 if (old) 947 kfree_rcu(old, rcu_head); 948 949 return 0; 950 } 951 952 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 953 struct cfg80211_fils_discovery *params, 954 struct ieee80211_link_data *link, 955 struct ieee80211_bss_conf *link_conf, 956 u64 *changed) 957 { 958 struct fils_discovery_data *new, *old = NULL; 959 struct ieee80211_fils_discovery *fd; 960 961 if (!params->update) 962 return 0; 963 964 fd = &link_conf->fils_discovery; 965 fd->min_interval = params->min_interval; 966 fd->max_interval = params->max_interval; 967 968 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 969 if (old) 970 kfree_rcu(old, rcu_head); 971 972 if (params->tmpl && params->tmpl_len) { 973 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 974 if (!new) 975 return -ENOMEM; 976 new->len = params->tmpl_len; 977 memcpy(new->data, params->tmpl, params->tmpl_len); 978 rcu_assign_pointer(link->u.ap.fils_discovery, new); 979 } else { 980 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 981 } 982 983 *changed |= BSS_CHANGED_FILS_DISCOVERY; 984 return 0; 985 } 986 987 static int 988 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 989 struct cfg80211_unsol_bcast_probe_resp *params, 990 struct ieee80211_link_data *link, 991 struct ieee80211_bss_conf *link_conf, 992 u64 *changed) 993 { 994 struct unsol_bcast_probe_resp_data *new, *old = NULL; 995 996 if (!params->update) 997 return 0; 998 999 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1000 1001 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1002 if (old) 1003 kfree_rcu(old, rcu_head); 1004 1005 if (params->tmpl && params->tmpl_len) { 1006 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1007 if (!new) 1008 return -ENOMEM; 1009 new->len = params->tmpl_len; 1010 memcpy(new->data, params->tmpl, params->tmpl_len); 1011 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1012 } else { 1013 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1014 } 1015 1016 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1017 return 0; 1018 } 1019 1020 static int ieee80211_set_ftm_responder_params( 1021 struct ieee80211_sub_if_data *sdata, 1022 const u8 *lci, size_t lci_len, 1023 const u8 *civicloc, size_t civicloc_len, 1024 struct ieee80211_bss_conf *link_conf) 1025 { 1026 struct ieee80211_ftm_responder_params *new, *old; 1027 u8 *pos; 1028 int len; 1029 1030 if (!lci_len && !civicloc_len) 1031 return 0; 1032 1033 old = link_conf->ftmr_params; 1034 len = lci_len + civicloc_len; 1035 1036 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1037 if (!new) 1038 return -ENOMEM; 1039 1040 pos = (u8 *)(new + 1); 1041 if (lci_len) { 1042 new->lci_len = lci_len; 1043 new->lci = pos; 1044 memcpy(pos, lci, lci_len); 1045 pos += lci_len; 1046 } 1047 1048 if (civicloc_len) { 1049 new->civicloc_len = civicloc_len; 1050 new->civicloc = pos; 1051 memcpy(pos, civicloc, civicloc_len); 1052 pos += civicloc_len; 1053 } 1054 1055 link_conf->ftmr_params = new; 1056 kfree(old); 1057 1058 return 0; 1059 } 1060 1061 static int 1062 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1063 struct cfg80211_mbssid_elems *src) 1064 { 1065 int i, offset = 0; 1066 1067 for (i = 0; i < src->cnt; i++) { 1068 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1069 dst->elem[i].len = src->elem[i].len; 1070 dst->elem[i].data = pos + offset; 1071 offset += dst->elem[i].len; 1072 } 1073 dst->cnt = src->cnt; 1074 1075 return offset; 1076 } 1077 1078 static int 1079 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1080 struct cfg80211_rnr_elems *src) 1081 { 1082 int i, offset = 0; 1083 1084 for (i = 0; i < src->cnt; i++) { 1085 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1086 dst->elem[i].len = src->elem[i].len; 1087 dst->elem[i].data = pos + offset; 1088 offset += dst->elem[i].len; 1089 } 1090 dst->cnt = src->cnt; 1091 1092 return offset; 1093 } 1094 1095 static int 1096 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1097 struct ieee80211_link_data *link, 1098 struct cfg80211_beacon_data *params, 1099 const struct ieee80211_csa_settings *csa, 1100 const struct ieee80211_color_change_settings *cca, 1101 u64 *changed) 1102 { 1103 struct cfg80211_mbssid_elems *mbssid = NULL; 1104 struct cfg80211_rnr_elems *rnr = NULL; 1105 struct beacon_data *new, *old; 1106 int new_head_len, new_tail_len; 1107 int size, err; 1108 u64 _changed = BSS_CHANGED_BEACON; 1109 struct ieee80211_bss_conf *link_conf = link->conf; 1110 1111 old = sdata_dereference(link->u.ap.beacon, sdata); 1112 1113 /* Need to have a beacon head if we don't have one yet */ 1114 if (!params->head && !old) 1115 return -EINVAL; 1116 1117 /* new or old head? */ 1118 if (params->head) 1119 new_head_len = params->head_len; 1120 else 1121 new_head_len = old->head_len; 1122 1123 /* new or old tail? */ 1124 if (params->tail || !old) 1125 /* params->tail_len will be zero for !params->tail */ 1126 new_tail_len = params->tail_len; 1127 else 1128 new_tail_len = old->tail_len; 1129 1130 size = sizeof(*new) + new_head_len + new_tail_len; 1131 1132 /* new or old multiple BSSID elements? */ 1133 if (params->mbssid_ies) { 1134 mbssid = params->mbssid_ies; 1135 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1136 if (params->rnr_ies) { 1137 rnr = params->rnr_ies; 1138 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1139 } 1140 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1141 mbssid->cnt); 1142 } else if (old && old->mbssid_ies) { 1143 mbssid = old->mbssid_ies; 1144 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1145 if (old && old->rnr_ies) { 1146 rnr = old->rnr_ies; 1147 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1148 } 1149 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1150 mbssid->cnt); 1151 } 1152 1153 new = kzalloc(size, GFP_KERNEL); 1154 if (!new) 1155 return -ENOMEM; 1156 1157 /* start filling the new info now */ 1158 1159 /* 1160 * pointers go into the block we allocated, 1161 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1162 */ 1163 new->head = ((u8 *) new) + sizeof(*new); 1164 new->tail = new->head + new_head_len; 1165 new->head_len = new_head_len; 1166 new->tail_len = new_tail_len; 1167 /* copy in optional mbssid_ies */ 1168 if (mbssid) { 1169 u8 *pos = new->tail + new->tail_len; 1170 1171 new->mbssid_ies = (void *)pos; 1172 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1173 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1174 mbssid); 1175 if (rnr) { 1176 new->rnr_ies = (void *)pos; 1177 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1178 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1179 } 1180 /* update bssid_indicator */ 1181 link_conf->bssid_indicator = 1182 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1183 } 1184 1185 if (csa) { 1186 new->cntdwn_current_counter = csa->count; 1187 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1188 csa->n_counter_offsets_beacon * 1189 sizeof(new->cntdwn_counter_offsets[0])); 1190 } else if (cca) { 1191 new->cntdwn_current_counter = cca->count; 1192 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1193 } 1194 1195 /* copy in head */ 1196 if (params->head) 1197 memcpy(new->head, params->head, new_head_len); 1198 else 1199 memcpy(new->head, old->head, new_head_len); 1200 1201 /* copy in optional tail */ 1202 if (params->tail) 1203 memcpy(new->tail, params->tail, new_tail_len); 1204 else 1205 if (old) 1206 memcpy(new->tail, old->tail, new_tail_len); 1207 1208 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1209 params->probe_resp_len, csa, cca, link); 1210 if (err < 0) { 1211 kfree(new); 1212 return err; 1213 } 1214 if (err == 0) 1215 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1216 1217 if (params->ftm_responder != -1) { 1218 link_conf->ftm_responder = params->ftm_responder; 1219 err = ieee80211_set_ftm_responder_params(sdata, 1220 params->lci, 1221 params->lci_len, 1222 params->civicloc, 1223 params->civicloc_len, 1224 link_conf); 1225 1226 if (err < 0) { 1227 kfree(new); 1228 return err; 1229 } 1230 1231 _changed |= BSS_CHANGED_FTM_RESPONDER; 1232 } 1233 1234 rcu_assign_pointer(link->u.ap.beacon, new); 1235 sdata->u.ap.active = true; 1236 1237 if (old) 1238 kfree_rcu(old, rcu_head); 1239 1240 *changed |= _changed; 1241 return 0; 1242 } 1243 1244 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1245 struct cfg80211_ap_settings *params) 1246 { 1247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1248 struct ieee80211_local *local = sdata->local; 1249 struct beacon_data *old; 1250 struct ieee80211_sub_if_data *vlan; 1251 u64 changed = BSS_CHANGED_BEACON_INT | 1252 BSS_CHANGED_BEACON_ENABLED | 1253 BSS_CHANGED_BEACON | 1254 BSS_CHANGED_P2P_PS | 1255 BSS_CHANGED_TXPOWER | 1256 BSS_CHANGED_TWT; 1257 int i, err; 1258 int prev_beacon_int; 1259 unsigned int link_id = params->beacon.link_id; 1260 struct ieee80211_link_data *link; 1261 struct ieee80211_bss_conf *link_conf; 1262 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1263 1264 lockdep_assert_wiphy(local->hw.wiphy); 1265 1266 link = sdata_dereference(sdata->link[link_id], sdata); 1267 if (!link) 1268 return -ENOLINK; 1269 1270 link_conf = link->conf; 1271 1272 old = sdata_dereference(link->u.ap.beacon, sdata); 1273 if (old) 1274 return -EALREADY; 1275 1276 if (params->smps_mode != NL80211_SMPS_OFF) 1277 return -EOPNOTSUPP; 1278 1279 link->smps_mode = IEEE80211_SMPS_OFF; 1280 1281 link->needed_rx_chains = sdata->local->rx_chains; 1282 1283 prev_beacon_int = link_conf->beacon_int; 1284 link_conf->beacon_int = params->beacon_interval; 1285 1286 if (params->ht_cap) 1287 link_conf->ht_ldpc = 1288 params->ht_cap->cap_info & 1289 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1290 1291 if (params->vht_cap) { 1292 link_conf->vht_ldpc = 1293 params->vht_cap->vht_cap_info & 1294 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1295 link_conf->vht_su_beamformer = 1296 params->vht_cap->vht_cap_info & 1297 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1298 link_conf->vht_su_beamformee = 1299 params->vht_cap->vht_cap_info & 1300 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1301 link_conf->vht_mu_beamformer = 1302 params->vht_cap->vht_cap_info & 1303 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1304 link_conf->vht_mu_beamformee = 1305 params->vht_cap->vht_cap_info & 1306 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1307 } 1308 1309 if (params->he_cap && params->he_oper) { 1310 link_conf->he_support = true; 1311 link_conf->htc_trig_based_pkt_ext = 1312 le32_get_bits(params->he_oper->he_oper_params, 1313 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1314 link_conf->frame_time_rts_th = 1315 le32_get_bits(params->he_oper->he_oper_params, 1316 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1317 changed |= BSS_CHANGED_HE_OBSS_PD; 1318 1319 if (params->beacon.he_bss_color.enabled) 1320 changed |= BSS_CHANGED_HE_BSS_COLOR; 1321 } 1322 1323 if (params->he_cap) { 1324 link_conf->he_ldpc = 1325 params->he_cap->phy_cap_info[1] & 1326 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1327 link_conf->he_su_beamformer = 1328 params->he_cap->phy_cap_info[3] & 1329 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1330 link_conf->he_su_beamformee = 1331 params->he_cap->phy_cap_info[4] & 1332 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1333 link_conf->he_mu_beamformer = 1334 params->he_cap->phy_cap_info[4] & 1335 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1336 link_conf->he_full_ul_mumimo = 1337 params->he_cap->phy_cap_info[2] & 1338 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1339 } 1340 1341 if (params->eht_cap) { 1342 if (!link_conf->he_support) 1343 return -EOPNOTSUPP; 1344 1345 link_conf->eht_support = true; 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, &chanreq, 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, &changed); 1449 if (err < 0) 1450 goto error; 1451 1452 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1453 ¶ms->unsol_bcast_probe_resp, 1454 link, link_conf, &changed); 1455 if (err < 0) 1456 goto error; 1457 1458 err = drv_start_ap(sdata->local, sdata, link_conf); 1459 if (err) { 1460 old = sdata_dereference(link->u.ap.beacon, sdata); 1461 1462 if (old) 1463 kfree_rcu(old, rcu_head); 1464 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1465 sdata->u.ap.active = false; 1466 goto error; 1467 } 1468 1469 ieee80211_recalc_dtim(local, sdata); 1470 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1471 ieee80211_link_info_change_notify(sdata, link, changed); 1472 1473 netif_carrier_on(dev); 1474 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1475 netif_carrier_on(vlan->dev); 1476 1477 return 0; 1478 1479 error: 1480 ieee80211_link_release_channel(link); 1481 1482 return err; 1483 } 1484 1485 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1486 struct cfg80211_ap_update *params) 1487 1488 { 1489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1490 struct ieee80211_link_data *link; 1491 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1492 struct beacon_data *old; 1493 int err; 1494 struct ieee80211_bss_conf *link_conf; 1495 u64 changed = 0; 1496 1497 lockdep_assert_wiphy(wiphy); 1498 1499 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1500 if (!link) 1501 return -ENOLINK; 1502 1503 link_conf = link->conf; 1504 1505 /* don't allow changing the beacon while a countdown is in place - offset 1506 * of channel switch counter may change 1507 */ 1508 if (link_conf->csa_active || link_conf->color_change_active) 1509 return -EBUSY; 1510 1511 old = sdata_dereference(link->u.ap.beacon, sdata); 1512 if (!old) 1513 return -ENOENT; 1514 1515 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1516 &changed); 1517 if (err < 0) 1518 return err; 1519 1520 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1521 link, link_conf, &changed); 1522 if (err < 0) 1523 return err; 1524 1525 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1526 ¶ms->unsol_bcast_probe_resp, 1527 link, link_conf, &changed); 1528 if (err < 0) 1529 return err; 1530 1531 if (beacon->he_bss_color_valid && 1532 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1533 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1534 changed |= BSS_CHANGED_HE_BSS_COLOR; 1535 } 1536 1537 ieee80211_link_info_change_notify(sdata, link, changed); 1538 return 0; 1539 } 1540 1541 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1542 { 1543 if (!link->u.ap.next_beacon) 1544 return; 1545 1546 kfree(link->u.ap.next_beacon->mbssid_ies); 1547 kfree(link->u.ap.next_beacon->rnr_ies); 1548 kfree(link->u.ap.next_beacon); 1549 link->u.ap.next_beacon = NULL; 1550 } 1551 1552 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1553 unsigned int link_id) 1554 { 1555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1556 struct ieee80211_sub_if_data *vlan; 1557 struct ieee80211_local *local = sdata->local; 1558 struct beacon_data *old_beacon; 1559 struct probe_resp *old_probe_resp; 1560 struct fils_discovery_data *old_fils_discovery; 1561 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1562 struct cfg80211_chan_def chandef; 1563 struct ieee80211_link_data *link = 1564 sdata_dereference(sdata->link[link_id], sdata); 1565 struct ieee80211_bss_conf *link_conf = link->conf; 1566 1567 lockdep_assert_wiphy(local->hw.wiphy); 1568 1569 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1570 if (!old_beacon) 1571 return -ENOENT; 1572 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1573 sdata); 1574 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1575 sdata); 1576 old_unsol_bcast_probe_resp = 1577 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1578 sdata); 1579 1580 /* abort any running channel switch or color change */ 1581 link_conf->csa_active = false; 1582 link_conf->color_change_active = false; 1583 if (link->csa_block_tx) { 1584 ieee80211_wake_vif_queues(local, sdata, 1585 IEEE80211_QUEUE_STOP_REASON_CSA); 1586 link->csa_block_tx = false; 1587 } 1588 1589 ieee80211_free_next_beacon(link); 1590 1591 /* turn off carrier for this interface and dependent VLANs */ 1592 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1593 netif_carrier_off(vlan->dev); 1594 netif_carrier_off(dev); 1595 1596 /* remove beacon and probe response */ 1597 sdata->u.ap.active = false; 1598 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1599 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1600 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1601 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1602 kfree_rcu(old_beacon, rcu_head); 1603 if (old_probe_resp) 1604 kfree_rcu(old_probe_resp, rcu_head); 1605 if (old_fils_discovery) 1606 kfree_rcu(old_fils_discovery, rcu_head); 1607 if (old_unsol_bcast_probe_resp) 1608 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1609 1610 kfree(link_conf->ftmr_params); 1611 link_conf->ftmr_params = NULL; 1612 1613 sdata->vif.mbssid_tx_vif = NULL; 1614 link_conf->bssid_index = 0; 1615 link_conf->nontransmitted = false; 1616 link_conf->ema_ap = false; 1617 link_conf->bssid_indicator = 0; 1618 1619 __sta_info_flush(sdata, true, link_id); 1620 ieee80211_free_keys(sdata, true); 1621 1622 link_conf->enable_beacon = false; 1623 sdata->beacon_rate_set = false; 1624 sdata->vif.cfg.ssid_len = 0; 1625 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1626 ieee80211_link_info_change_notify(sdata, link, 1627 BSS_CHANGED_BEACON_ENABLED); 1628 1629 if (sdata->wdev.cac_started) { 1630 chandef = link_conf->chanreq.oper; 1631 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1632 cfg80211_cac_event(sdata->dev, &chandef, 1633 NL80211_RADAR_CAC_ABORTED, 1634 GFP_KERNEL); 1635 } 1636 1637 drv_stop_ap(sdata->local, sdata, link_conf); 1638 1639 /* free all potentially still buffered bcast frames */ 1640 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1641 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1642 1643 ieee80211_link_copy_chanctx_to_vlans(link, true); 1644 ieee80211_link_release_channel(link); 1645 1646 return 0; 1647 } 1648 1649 static int sta_apply_auth_flags(struct ieee80211_local *local, 1650 struct sta_info *sta, 1651 u32 mask, u32 set) 1652 { 1653 int ret; 1654 1655 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1656 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1657 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1658 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1659 if (ret) 1660 return ret; 1661 } 1662 1663 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1664 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1665 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1666 /* 1667 * When peer becomes associated, init rate control as 1668 * well. Some drivers require rate control initialized 1669 * before drv_sta_state() is called. 1670 */ 1671 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1672 rate_control_rate_init(sta); 1673 1674 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1675 if (ret) 1676 return ret; 1677 } 1678 1679 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1680 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1681 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1682 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1683 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1684 else 1685 ret = 0; 1686 if (ret) 1687 return ret; 1688 } 1689 1690 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1691 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1692 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1693 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1694 if (ret) 1695 return ret; 1696 } 1697 1698 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1699 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1700 test_sta_flag(sta, WLAN_STA_AUTH)) { 1701 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1702 if (ret) 1703 return ret; 1704 } 1705 1706 return 0; 1707 } 1708 1709 static void sta_apply_mesh_params(struct ieee80211_local *local, 1710 struct sta_info *sta, 1711 struct station_parameters *params) 1712 { 1713 #ifdef CONFIG_MAC80211_MESH 1714 struct ieee80211_sub_if_data *sdata = sta->sdata; 1715 u64 changed = 0; 1716 1717 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1718 switch (params->plink_state) { 1719 case NL80211_PLINK_ESTAB: 1720 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1721 changed = mesh_plink_inc_estab_count(sdata); 1722 sta->mesh->plink_state = params->plink_state; 1723 sta->mesh->aid = params->peer_aid; 1724 1725 ieee80211_mps_sta_status_update(sta); 1726 changed |= ieee80211_mps_set_sta_local_pm(sta, 1727 sdata->u.mesh.mshcfg.power_mode); 1728 1729 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1730 /* init at low value */ 1731 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1732 1733 break; 1734 case NL80211_PLINK_LISTEN: 1735 case NL80211_PLINK_BLOCKED: 1736 case NL80211_PLINK_OPN_SNT: 1737 case NL80211_PLINK_OPN_RCVD: 1738 case NL80211_PLINK_CNF_RCVD: 1739 case NL80211_PLINK_HOLDING: 1740 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1741 changed = mesh_plink_dec_estab_count(sdata); 1742 sta->mesh->plink_state = params->plink_state; 1743 1744 ieee80211_mps_sta_status_update(sta); 1745 changed |= ieee80211_mps_set_sta_local_pm(sta, 1746 NL80211_MESH_POWER_UNKNOWN); 1747 break; 1748 default: 1749 /* nothing */ 1750 break; 1751 } 1752 } 1753 1754 switch (params->plink_action) { 1755 case NL80211_PLINK_ACTION_NO_ACTION: 1756 /* nothing */ 1757 break; 1758 case NL80211_PLINK_ACTION_OPEN: 1759 changed |= mesh_plink_open(sta); 1760 break; 1761 case NL80211_PLINK_ACTION_BLOCK: 1762 changed |= mesh_plink_block(sta); 1763 break; 1764 } 1765 1766 if (params->local_pm) 1767 changed |= ieee80211_mps_set_sta_local_pm(sta, 1768 params->local_pm); 1769 1770 ieee80211_mbss_info_change_notify(sdata, changed); 1771 #endif 1772 } 1773 1774 static int sta_link_apply_parameters(struct ieee80211_local *local, 1775 struct sta_info *sta, bool new_link, 1776 struct link_station_parameters *params) 1777 { 1778 int ret = 0; 1779 struct ieee80211_supported_band *sband; 1780 struct ieee80211_sub_if_data *sdata = sta->sdata; 1781 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1782 struct ieee80211_link_data *link = 1783 sdata_dereference(sdata->link[link_id], sdata); 1784 struct link_sta_info *link_sta = 1785 rcu_dereference_protected(sta->link[link_id], 1786 lockdep_is_held(&local->hw.wiphy->mtx)); 1787 1788 /* 1789 * If there are no changes, then accept a link that exist, 1790 * unless it's a new link. 1791 */ 1792 if (params->link_id >= 0 && !new_link && 1793 !params->link_mac && !params->txpwr_set && 1794 !params->supported_rates_len && 1795 !params->ht_capa && !params->vht_capa && 1796 !params->he_capa && !params->eht_capa && 1797 !params->opmode_notif_used) 1798 return 0; 1799 1800 if (!link || !link_sta) 1801 return -EINVAL; 1802 1803 sband = ieee80211_get_link_sband(link); 1804 if (!sband) 1805 return -EINVAL; 1806 1807 if (params->link_mac) { 1808 if (new_link) { 1809 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1810 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1811 } else if (!ether_addr_equal(link_sta->addr, 1812 params->link_mac)) { 1813 return -EINVAL; 1814 } 1815 } else if (new_link) { 1816 return -EINVAL; 1817 } 1818 1819 if (params->txpwr_set) { 1820 link_sta->pub->txpwr.type = params->txpwr.type; 1821 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1822 link_sta->pub->txpwr.power = params->txpwr.power; 1823 ret = drv_sta_set_txpwr(local, sdata, sta); 1824 if (ret) 1825 return ret; 1826 } 1827 1828 if (params->supported_rates && 1829 params->supported_rates_len) { 1830 ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1831 sband, params->supported_rates, 1832 params->supported_rates_len, 1833 &link_sta->pub->supp_rates[sband->band]); 1834 } 1835 1836 if (params->ht_capa) 1837 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1838 params->ht_capa, link_sta); 1839 1840 /* VHT can override some HT caps such as the A-MSDU max length */ 1841 if (params->vht_capa) 1842 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1843 params->vht_capa, NULL, 1844 link_sta); 1845 1846 if (params->he_capa) 1847 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1848 (void *)params->he_capa, 1849 params->he_capa_len, 1850 (void *)params->he_6ghz_capa, 1851 link_sta); 1852 1853 if (params->he_capa && params->eht_capa) 1854 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1855 (u8 *)params->he_capa, 1856 params->he_capa_len, 1857 params->eht_capa, 1858 params->eht_capa_len, 1859 link_sta); 1860 1861 if (params->opmode_notif_used) { 1862 /* returned value is only needed for rc update, but the 1863 * rc isn't initialized here yet, so ignore it 1864 */ 1865 __ieee80211_vht_handle_opmode(sdata, link_sta, 1866 params->opmode_notif, 1867 sband->band); 1868 } 1869 1870 ieee80211_sta_set_rx_nss(link_sta); 1871 1872 return ret; 1873 } 1874 1875 static int sta_apply_parameters(struct ieee80211_local *local, 1876 struct sta_info *sta, 1877 struct station_parameters *params) 1878 { 1879 struct ieee80211_sub_if_data *sdata = sta->sdata; 1880 u32 mask, set; 1881 int ret = 0; 1882 1883 mask = params->sta_flags_mask; 1884 set = params->sta_flags_set; 1885 1886 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1887 /* 1888 * In mesh mode, ASSOCIATED isn't part of the nl80211 1889 * API but must follow AUTHENTICATED for driver state. 1890 */ 1891 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1892 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1893 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1894 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1895 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1896 /* 1897 * TDLS -- everything follows authorized, but 1898 * only becoming authorized is possible, not 1899 * going back 1900 */ 1901 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1902 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1903 BIT(NL80211_STA_FLAG_ASSOCIATED); 1904 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1905 BIT(NL80211_STA_FLAG_ASSOCIATED); 1906 } 1907 } 1908 1909 if (mask & BIT(NL80211_STA_FLAG_WME) && 1910 local->hw.queues >= IEEE80211_NUM_ACS) 1911 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1912 1913 /* auth flags will be set later for TDLS, 1914 * and for unassociated stations that move to associated */ 1915 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1916 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1917 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1918 ret = sta_apply_auth_flags(local, sta, mask, set); 1919 if (ret) 1920 return ret; 1921 } 1922 1923 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1924 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1925 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1926 else 1927 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1928 } 1929 1930 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1931 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1932 if (set & BIT(NL80211_STA_FLAG_MFP)) 1933 set_sta_flag(sta, WLAN_STA_MFP); 1934 else 1935 clear_sta_flag(sta, WLAN_STA_MFP); 1936 } 1937 1938 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1939 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1940 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1941 else 1942 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1943 } 1944 1945 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 1946 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 1947 1948 /* mark TDLS channel switch support, if the AP allows it */ 1949 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1950 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1951 params->ext_capab_len >= 4 && 1952 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1953 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1954 1955 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1956 !sdata->u.mgd.tdls_wider_bw_prohibited && 1957 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1958 params->ext_capab_len >= 8 && 1959 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1960 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1961 1962 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1963 sta->sta.uapsd_queues = params->uapsd_queues; 1964 sta->sta.max_sp = params->max_sp; 1965 } 1966 1967 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1968 params->ext_capab_len); 1969 1970 /* 1971 * cfg80211 validates this (1-2007) and allows setting the AID 1972 * only when creating a new station entry 1973 */ 1974 if (params->aid) 1975 sta->sta.aid = params->aid; 1976 1977 /* 1978 * Some of the following updates would be racy if called on an 1979 * existing station, via ieee80211_change_station(). However, 1980 * all such changes are rejected by cfg80211 except for updates 1981 * changing the supported rates on an existing but not yet used 1982 * TDLS peer. 1983 */ 1984 1985 if (params->listen_interval >= 0) 1986 sta->listen_interval = params->listen_interval; 1987 1988 ret = sta_link_apply_parameters(local, sta, false, 1989 ¶ms->link_sta_params); 1990 if (ret) 1991 return ret; 1992 1993 if (params->support_p2p_ps >= 0) 1994 sta->sta.support_p2p_ps = params->support_p2p_ps; 1995 1996 if (ieee80211_vif_is_mesh(&sdata->vif)) 1997 sta_apply_mesh_params(local, sta, params); 1998 1999 if (params->airtime_weight) 2000 sta->airtime_weight = params->airtime_weight; 2001 2002 /* set the STA state after all sta info from usermode has been set */ 2003 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2004 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2005 ret = sta_apply_auth_flags(local, sta, mask, set); 2006 if (ret) 2007 return ret; 2008 } 2009 2010 /* Mark the STA as MLO if MLD MAC address is available */ 2011 if (params->link_sta_params.mld_mac) 2012 sta->sta.mlo = true; 2013 2014 return 0; 2015 } 2016 2017 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2018 const u8 *mac, 2019 struct station_parameters *params) 2020 { 2021 struct ieee80211_local *local = wiphy_priv(wiphy); 2022 struct sta_info *sta; 2023 struct ieee80211_sub_if_data *sdata; 2024 int err; 2025 2026 lockdep_assert_wiphy(local->hw.wiphy); 2027 2028 if (params->vlan) { 2029 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2030 2031 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2032 sdata->vif.type != NL80211_IFTYPE_AP) 2033 return -EINVAL; 2034 } else 2035 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2036 2037 if (ether_addr_equal(mac, sdata->vif.addr)) 2038 return -EINVAL; 2039 2040 if (!is_valid_ether_addr(mac)) 2041 return -EINVAL; 2042 2043 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2044 sdata->vif.type == NL80211_IFTYPE_STATION && 2045 !sdata->u.mgd.associated) 2046 return -EINVAL; 2047 2048 /* 2049 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2050 * but we need to have a link_mac in that case as well, so use the 2051 * STA's MAC address in that case. 2052 */ 2053 if (params->link_sta_params.link_id >= 0) 2054 sta = sta_info_alloc_with_link(sdata, mac, 2055 params->link_sta_params.link_id, 2056 params->link_sta_params.link_mac ?: mac, 2057 GFP_KERNEL); 2058 else 2059 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2060 2061 if (!sta) 2062 return -ENOMEM; 2063 2064 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2065 sta->sta.tdls = true; 2066 2067 /* Though the mutex is not needed here (since the station is not 2068 * visible yet), sta_apply_parameters (and inner functions) require 2069 * the mutex due to other paths. 2070 */ 2071 err = sta_apply_parameters(local, sta, params); 2072 if (err) { 2073 sta_info_free(local, sta); 2074 return err; 2075 } 2076 2077 /* 2078 * for TDLS and for unassociated station, rate control should be 2079 * initialized only when rates are known and station is marked 2080 * authorized/associated 2081 */ 2082 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2083 test_sta_flag(sta, WLAN_STA_ASSOC)) 2084 rate_control_rate_init(sta); 2085 2086 return sta_info_insert(sta); 2087 } 2088 2089 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2090 struct station_del_parameters *params) 2091 { 2092 struct ieee80211_sub_if_data *sdata; 2093 2094 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2095 2096 if (params->mac) 2097 return sta_info_destroy_addr_bss(sdata, params->mac); 2098 2099 sta_info_flush(sdata, params->link_id); 2100 return 0; 2101 } 2102 2103 static int ieee80211_change_station(struct wiphy *wiphy, 2104 struct net_device *dev, const u8 *mac, 2105 struct station_parameters *params) 2106 { 2107 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2108 struct ieee80211_local *local = wiphy_priv(wiphy); 2109 struct sta_info *sta; 2110 struct ieee80211_sub_if_data *vlansdata; 2111 enum cfg80211_station_type statype; 2112 int err; 2113 2114 lockdep_assert_wiphy(local->hw.wiphy); 2115 2116 sta = sta_info_get_bss(sdata, mac); 2117 if (!sta) 2118 return -ENOENT; 2119 2120 switch (sdata->vif.type) { 2121 case NL80211_IFTYPE_MESH_POINT: 2122 if (sdata->u.mesh.user_mpm) 2123 statype = CFG80211_STA_MESH_PEER_USER; 2124 else 2125 statype = CFG80211_STA_MESH_PEER_KERNEL; 2126 break; 2127 case NL80211_IFTYPE_ADHOC: 2128 statype = CFG80211_STA_IBSS; 2129 break; 2130 case NL80211_IFTYPE_STATION: 2131 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2132 statype = CFG80211_STA_AP_STA; 2133 break; 2134 } 2135 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2136 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2137 else 2138 statype = CFG80211_STA_TDLS_PEER_SETUP; 2139 break; 2140 case NL80211_IFTYPE_AP: 2141 case NL80211_IFTYPE_AP_VLAN: 2142 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2143 statype = CFG80211_STA_AP_CLIENT; 2144 else 2145 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2146 break; 2147 default: 2148 return -EOPNOTSUPP; 2149 } 2150 2151 err = cfg80211_check_station_change(wiphy, params, statype); 2152 if (err) 2153 return err; 2154 2155 if (params->vlan && params->vlan != sta->sdata->dev) { 2156 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2157 2158 if (params->vlan->ieee80211_ptr->use_4addr) { 2159 if (vlansdata->u.vlan.sta) 2160 return -EBUSY; 2161 2162 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2163 __ieee80211_check_fast_rx_iface(vlansdata); 2164 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2165 } 2166 2167 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2168 sta->sdata->u.vlan.sta) { 2169 ieee80211_clear_fast_rx(sta); 2170 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2171 } 2172 2173 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2174 ieee80211_vif_dec_num_mcast(sta->sdata); 2175 2176 sta->sdata = vlansdata; 2177 ieee80211_check_fast_xmit(sta); 2178 2179 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2180 ieee80211_vif_inc_num_mcast(sta->sdata); 2181 cfg80211_send_layer2_update(sta->sdata->dev, 2182 sta->sta.addr); 2183 } 2184 } 2185 2186 err = sta_apply_parameters(local, sta, params); 2187 if (err) 2188 return err; 2189 2190 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2191 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2192 ieee80211_recalc_ps(local); 2193 ieee80211_recalc_ps_vif(sdata); 2194 } 2195 2196 return 0; 2197 } 2198 2199 #ifdef CONFIG_MAC80211_MESH 2200 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2201 const u8 *dst, const u8 *next_hop) 2202 { 2203 struct ieee80211_sub_if_data *sdata; 2204 struct mesh_path *mpath; 2205 struct sta_info *sta; 2206 2207 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2208 2209 rcu_read_lock(); 2210 sta = sta_info_get(sdata, next_hop); 2211 if (!sta) { 2212 rcu_read_unlock(); 2213 return -ENOENT; 2214 } 2215 2216 mpath = mesh_path_add(sdata, dst); 2217 if (IS_ERR(mpath)) { 2218 rcu_read_unlock(); 2219 return PTR_ERR(mpath); 2220 } 2221 2222 mesh_path_fix_nexthop(mpath, sta); 2223 2224 rcu_read_unlock(); 2225 return 0; 2226 } 2227 2228 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2229 const u8 *dst) 2230 { 2231 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2232 2233 if (dst) 2234 return mesh_path_del(sdata, dst); 2235 2236 mesh_path_flush_by_iface(sdata); 2237 return 0; 2238 } 2239 2240 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2241 const u8 *dst, const u8 *next_hop) 2242 { 2243 struct ieee80211_sub_if_data *sdata; 2244 struct mesh_path *mpath; 2245 struct sta_info *sta; 2246 2247 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2248 2249 rcu_read_lock(); 2250 2251 sta = sta_info_get(sdata, next_hop); 2252 if (!sta) { 2253 rcu_read_unlock(); 2254 return -ENOENT; 2255 } 2256 2257 mpath = mesh_path_lookup(sdata, dst); 2258 if (!mpath) { 2259 rcu_read_unlock(); 2260 return -ENOENT; 2261 } 2262 2263 mesh_path_fix_nexthop(mpath, sta); 2264 2265 rcu_read_unlock(); 2266 return 0; 2267 } 2268 2269 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2270 struct mpath_info *pinfo) 2271 { 2272 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2273 2274 if (next_hop_sta) 2275 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2276 else 2277 eth_zero_addr(next_hop); 2278 2279 memset(pinfo, 0, sizeof(*pinfo)); 2280 2281 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2282 2283 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2284 MPATH_INFO_SN | 2285 MPATH_INFO_METRIC | 2286 MPATH_INFO_EXPTIME | 2287 MPATH_INFO_DISCOVERY_TIMEOUT | 2288 MPATH_INFO_DISCOVERY_RETRIES | 2289 MPATH_INFO_FLAGS | 2290 MPATH_INFO_HOP_COUNT | 2291 MPATH_INFO_PATH_CHANGE; 2292 2293 pinfo->frame_qlen = mpath->frame_queue.qlen; 2294 pinfo->sn = mpath->sn; 2295 pinfo->metric = mpath->metric; 2296 if (time_before(jiffies, mpath->exp_time)) 2297 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2298 pinfo->discovery_timeout = 2299 jiffies_to_msecs(mpath->discovery_timeout); 2300 pinfo->discovery_retries = mpath->discovery_retries; 2301 if (mpath->flags & MESH_PATH_ACTIVE) 2302 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2303 if (mpath->flags & MESH_PATH_RESOLVING) 2304 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2305 if (mpath->flags & MESH_PATH_SN_VALID) 2306 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2307 if (mpath->flags & MESH_PATH_FIXED) 2308 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2309 if (mpath->flags & MESH_PATH_RESOLVED) 2310 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2311 pinfo->hop_count = mpath->hop_count; 2312 pinfo->path_change_count = mpath->path_change_count; 2313 } 2314 2315 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2316 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2317 2318 { 2319 struct ieee80211_sub_if_data *sdata; 2320 struct mesh_path *mpath; 2321 2322 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2323 2324 rcu_read_lock(); 2325 mpath = mesh_path_lookup(sdata, dst); 2326 if (!mpath) { 2327 rcu_read_unlock(); 2328 return -ENOENT; 2329 } 2330 memcpy(dst, mpath->dst, ETH_ALEN); 2331 mpath_set_pinfo(mpath, next_hop, pinfo); 2332 rcu_read_unlock(); 2333 return 0; 2334 } 2335 2336 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2337 int idx, u8 *dst, u8 *next_hop, 2338 struct mpath_info *pinfo) 2339 { 2340 struct ieee80211_sub_if_data *sdata; 2341 struct mesh_path *mpath; 2342 2343 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2344 2345 rcu_read_lock(); 2346 mpath = mesh_path_lookup_by_idx(sdata, idx); 2347 if (!mpath) { 2348 rcu_read_unlock(); 2349 return -ENOENT; 2350 } 2351 memcpy(dst, mpath->dst, ETH_ALEN); 2352 mpath_set_pinfo(mpath, next_hop, pinfo); 2353 rcu_read_unlock(); 2354 return 0; 2355 } 2356 2357 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2358 struct mpath_info *pinfo) 2359 { 2360 memset(pinfo, 0, sizeof(*pinfo)); 2361 memcpy(mpp, mpath->mpp, ETH_ALEN); 2362 2363 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2364 } 2365 2366 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2367 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2368 2369 { 2370 struct ieee80211_sub_if_data *sdata; 2371 struct mesh_path *mpath; 2372 2373 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2374 2375 rcu_read_lock(); 2376 mpath = mpp_path_lookup(sdata, dst); 2377 if (!mpath) { 2378 rcu_read_unlock(); 2379 return -ENOENT; 2380 } 2381 memcpy(dst, mpath->dst, ETH_ALEN); 2382 mpp_set_pinfo(mpath, mpp, pinfo); 2383 rcu_read_unlock(); 2384 return 0; 2385 } 2386 2387 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2388 int idx, u8 *dst, u8 *mpp, 2389 struct mpath_info *pinfo) 2390 { 2391 struct ieee80211_sub_if_data *sdata; 2392 struct mesh_path *mpath; 2393 2394 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2395 2396 rcu_read_lock(); 2397 mpath = mpp_path_lookup_by_idx(sdata, idx); 2398 if (!mpath) { 2399 rcu_read_unlock(); 2400 return -ENOENT; 2401 } 2402 memcpy(dst, mpath->dst, ETH_ALEN); 2403 mpp_set_pinfo(mpath, mpp, pinfo); 2404 rcu_read_unlock(); 2405 return 0; 2406 } 2407 2408 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2409 struct net_device *dev, 2410 struct mesh_config *conf) 2411 { 2412 struct ieee80211_sub_if_data *sdata; 2413 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2414 2415 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2416 return 0; 2417 } 2418 2419 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2420 { 2421 return (mask >> (parm-1)) & 0x1; 2422 } 2423 2424 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2425 const struct mesh_setup *setup) 2426 { 2427 u8 *new_ie; 2428 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2429 struct ieee80211_sub_if_data, u.mesh); 2430 int i; 2431 2432 /* allocate information elements */ 2433 new_ie = NULL; 2434 2435 if (setup->ie_len) { 2436 new_ie = kmemdup(setup->ie, setup->ie_len, 2437 GFP_KERNEL); 2438 if (!new_ie) 2439 return -ENOMEM; 2440 } 2441 ifmsh->ie_len = setup->ie_len; 2442 ifmsh->ie = new_ie; 2443 2444 /* now copy the rest of the setup parameters */ 2445 ifmsh->mesh_id_len = setup->mesh_id_len; 2446 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2447 ifmsh->mesh_sp_id = setup->sync_method; 2448 ifmsh->mesh_pp_id = setup->path_sel_proto; 2449 ifmsh->mesh_pm_id = setup->path_metric; 2450 ifmsh->user_mpm = setup->user_mpm; 2451 ifmsh->mesh_auth_id = setup->auth_id; 2452 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2453 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2454 if (setup->is_authenticated) 2455 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2456 if (setup->is_secure) 2457 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2458 2459 /* mcast rate setting in Mesh Node */ 2460 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2461 sizeof(setup->mcast_rate)); 2462 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2463 2464 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2465 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2466 2467 sdata->beacon_rate_set = false; 2468 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2469 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2470 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2471 sdata->beacon_rateidx_mask[i] = 2472 setup->beacon_rate.control[i].legacy; 2473 if (sdata->beacon_rateidx_mask[i]) 2474 sdata->beacon_rate_set = true; 2475 } 2476 } 2477 2478 return 0; 2479 } 2480 2481 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2482 struct net_device *dev, u32 mask, 2483 const struct mesh_config *nconf) 2484 { 2485 struct mesh_config *conf; 2486 struct ieee80211_sub_if_data *sdata; 2487 struct ieee80211_if_mesh *ifmsh; 2488 2489 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2490 ifmsh = &sdata->u.mesh; 2491 2492 /* Set the config options which we are interested in setting */ 2493 conf = &(sdata->u.mesh.mshcfg); 2494 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2495 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2496 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2497 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2498 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2499 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2500 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2501 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2502 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2503 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2504 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2505 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2506 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2507 conf->element_ttl = nconf->element_ttl; 2508 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2509 if (ifmsh->user_mpm) 2510 return -EBUSY; 2511 conf->auto_open_plinks = nconf->auto_open_plinks; 2512 } 2513 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2514 conf->dot11MeshNbrOffsetMaxNeighbor = 2515 nconf->dot11MeshNbrOffsetMaxNeighbor; 2516 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2517 conf->dot11MeshHWMPmaxPREQretries = 2518 nconf->dot11MeshHWMPmaxPREQretries; 2519 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2520 conf->path_refresh_time = nconf->path_refresh_time; 2521 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2522 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2523 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2524 conf->dot11MeshHWMPactivePathTimeout = 2525 nconf->dot11MeshHWMPactivePathTimeout; 2526 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2527 conf->dot11MeshHWMPpreqMinInterval = 2528 nconf->dot11MeshHWMPpreqMinInterval; 2529 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2530 conf->dot11MeshHWMPperrMinInterval = 2531 nconf->dot11MeshHWMPperrMinInterval; 2532 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2533 mask)) 2534 conf->dot11MeshHWMPnetDiameterTraversalTime = 2535 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2536 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2537 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2538 ieee80211_mesh_root_setup(ifmsh); 2539 } 2540 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2541 /* our current gate announcement implementation rides on root 2542 * announcements, so require this ifmsh to also be a root node 2543 * */ 2544 if (nconf->dot11MeshGateAnnouncementProtocol && 2545 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2546 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2547 ieee80211_mesh_root_setup(ifmsh); 2548 } 2549 conf->dot11MeshGateAnnouncementProtocol = 2550 nconf->dot11MeshGateAnnouncementProtocol; 2551 } 2552 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2553 conf->dot11MeshHWMPRannInterval = 2554 nconf->dot11MeshHWMPRannInterval; 2555 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2556 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2557 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2558 /* our RSSI threshold implementation is supported only for 2559 * devices that report signal in dBm. 2560 */ 2561 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2562 return -EOPNOTSUPP; 2563 conf->rssi_threshold = nconf->rssi_threshold; 2564 } 2565 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2566 conf->ht_opmode = nconf->ht_opmode; 2567 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2568 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2569 BSS_CHANGED_HT); 2570 } 2571 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2572 conf->dot11MeshHWMPactivePathToRootTimeout = 2573 nconf->dot11MeshHWMPactivePathToRootTimeout; 2574 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2575 conf->dot11MeshHWMProotInterval = 2576 nconf->dot11MeshHWMProotInterval; 2577 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2578 conf->dot11MeshHWMPconfirmationInterval = 2579 nconf->dot11MeshHWMPconfirmationInterval; 2580 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2581 conf->power_mode = nconf->power_mode; 2582 ieee80211_mps_local_status_update(sdata); 2583 } 2584 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2585 conf->dot11MeshAwakeWindowDuration = 2586 nconf->dot11MeshAwakeWindowDuration; 2587 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2588 conf->plink_timeout = nconf->plink_timeout; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2590 conf->dot11MeshConnectedToMeshGate = 2591 nconf->dot11MeshConnectedToMeshGate; 2592 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2593 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2594 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2595 conf->dot11MeshConnectedToAuthServer = 2596 nconf->dot11MeshConnectedToAuthServer; 2597 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2598 return 0; 2599 } 2600 2601 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2602 const struct mesh_config *conf, 2603 const struct mesh_setup *setup) 2604 { 2605 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2606 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2607 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2608 int err; 2609 2610 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2611 2612 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2613 err = copy_mesh_setup(ifmsh, setup); 2614 if (err) 2615 return err; 2616 2617 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2618 2619 /* can mesh use other SMPS modes? */ 2620 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2621 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2622 2623 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2624 IEEE80211_CHANCTX_SHARED); 2625 if (err) 2626 return err; 2627 2628 return ieee80211_start_mesh(sdata); 2629 } 2630 2631 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2632 { 2633 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2634 2635 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2636 2637 ieee80211_stop_mesh(sdata); 2638 ieee80211_link_release_channel(&sdata->deflink); 2639 kfree(sdata->u.mesh.ie); 2640 2641 return 0; 2642 } 2643 #endif 2644 2645 static int ieee80211_change_bss(struct wiphy *wiphy, 2646 struct net_device *dev, 2647 struct bss_parameters *params) 2648 { 2649 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2650 struct ieee80211_link_data *link; 2651 struct ieee80211_supported_band *sband; 2652 u64 changed = 0; 2653 2654 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2655 if (IS_ERR(link)) 2656 return PTR_ERR(link); 2657 2658 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2659 return -ENOENT; 2660 2661 sband = ieee80211_get_link_sband(link); 2662 if (!sband) 2663 return -EINVAL; 2664 2665 if (params->basic_rates) { 2666 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2667 wiphy->bands[sband->band], 2668 params->basic_rates, 2669 params->basic_rates_len, 2670 &link->conf->basic_rates)) 2671 return -EINVAL; 2672 changed |= BSS_CHANGED_BASIC_RATES; 2673 ieee80211_check_rate_mask(link); 2674 } 2675 2676 if (params->use_cts_prot >= 0) { 2677 link->conf->use_cts_prot = params->use_cts_prot; 2678 changed |= BSS_CHANGED_ERP_CTS_PROT; 2679 } 2680 if (params->use_short_preamble >= 0) { 2681 link->conf->use_short_preamble = params->use_short_preamble; 2682 changed |= BSS_CHANGED_ERP_PREAMBLE; 2683 } 2684 2685 if (!link->conf->use_short_slot && 2686 (sband->band == NL80211_BAND_5GHZ || 2687 sband->band == NL80211_BAND_6GHZ)) { 2688 link->conf->use_short_slot = true; 2689 changed |= BSS_CHANGED_ERP_SLOT; 2690 } 2691 2692 if (params->use_short_slot_time >= 0) { 2693 link->conf->use_short_slot = params->use_short_slot_time; 2694 changed |= BSS_CHANGED_ERP_SLOT; 2695 } 2696 2697 if (params->ap_isolate >= 0) { 2698 if (params->ap_isolate) 2699 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2700 else 2701 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2702 ieee80211_check_fast_rx_iface(sdata); 2703 } 2704 2705 if (params->ht_opmode >= 0) { 2706 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2707 changed |= BSS_CHANGED_HT; 2708 } 2709 2710 if (params->p2p_ctwindow >= 0) { 2711 link->conf->p2p_noa_attr.oppps_ctwindow &= 2712 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2713 link->conf->p2p_noa_attr.oppps_ctwindow |= 2714 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2715 changed |= BSS_CHANGED_P2P_PS; 2716 } 2717 2718 if (params->p2p_opp_ps > 0) { 2719 link->conf->p2p_noa_attr.oppps_ctwindow |= 2720 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2721 changed |= BSS_CHANGED_P2P_PS; 2722 } else if (params->p2p_opp_ps == 0) { 2723 link->conf->p2p_noa_attr.oppps_ctwindow &= 2724 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2725 changed |= BSS_CHANGED_P2P_PS; 2726 } 2727 2728 ieee80211_link_info_change_notify(sdata, link, changed); 2729 2730 return 0; 2731 } 2732 2733 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2734 struct net_device *dev, 2735 struct ieee80211_txq_params *params) 2736 { 2737 struct ieee80211_local *local = wiphy_priv(wiphy); 2738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2739 struct ieee80211_link_data *link = 2740 ieee80211_link_or_deflink(sdata, params->link_id, true); 2741 struct ieee80211_tx_queue_params p; 2742 2743 if (!local->ops->conf_tx) 2744 return -EOPNOTSUPP; 2745 2746 if (local->hw.queues < IEEE80211_NUM_ACS) 2747 return -EOPNOTSUPP; 2748 2749 if (IS_ERR(link)) 2750 return PTR_ERR(link); 2751 2752 memset(&p, 0, sizeof(p)); 2753 p.aifs = params->aifs; 2754 p.cw_max = params->cwmax; 2755 p.cw_min = params->cwmin; 2756 p.txop = params->txop; 2757 2758 /* 2759 * Setting tx queue params disables u-apsd because it's only 2760 * called in master mode. 2761 */ 2762 p.uapsd = false; 2763 2764 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2765 2766 link->tx_conf[params->ac] = p; 2767 if (drv_conf_tx(local, link, params->ac, &p)) { 2768 wiphy_debug(local->hw.wiphy, 2769 "failed to set TX queue parameters for AC %d\n", 2770 params->ac); 2771 return -EINVAL; 2772 } 2773 2774 ieee80211_link_info_change_notify(sdata, link, 2775 BSS_CHANGED_QOS); 2776 2777 return 0; 2778 } 2779 2780 #ifdef CONFIG_PM 2781 static int ieee80211_suspend(struct wiphy *wiphy, 2782 struct cfg80211_wowlan *wowlan) 2783 { 2784 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2785 } 2786 2787 static int ieee80211_resume(struct wiphy *wiphy) 2788 { 2789 return __ieee80211_resume(wiphy_priv(wiphy)); 2790 } 2791 #else 2792 #define ieee80211_suspend NULL 2793 #define ieee80211_resume NULL 2794 #endif 2795 2796 static int ieee80211_scan(struct wiphy *wiphy, 2797 struct cfg80211_scan_request *req) 2798 { 2799 struct ieee80211_sub_if_data *sdata; 2800 2801 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2802 2803 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2804 case NL80211_IFTYPE_STATION: 2805 case NL80211_IFTYPE_ADHOC: 2806 case NL80211_IFTYPE_MESH_POINT: 2807 case NL80211_IFTYPE_P2P_CLIENT: 2808 case NL80211_IFTYPE_P2P_DEVICE: 2809 break; 2810 case NL80211_IFTYPE_P2P_GO: 2811 if (sdata->local->ops->hw_scan) 2812 break; 2813 /* 2814 * FIXME: implement NoA while scanning in software, 2815 * for now fall through to allow scanning only when 2816 * beaconing hasn't been configured yet 2817 */ 2818 fallthrough; 2819 case NL80211_IFTYPE_AP: 2820 /* 2821 * If the scan has been forced (and the driver supports 2822 * forcing), don't care about being beaconing already. 2823 * This will create problems to the attached stations (e.g. all 2824 * the frames sent while scanning on other channel will be 2825 * lost) 2826 */ 2827 if (sdata->deflink.u.ap.beacon && 2828 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2829 !(req->flags & NL80211_SCAN_FLAG_AP))) 2830 return -EOPNOTSUPP; 2831 break; 2832 case NL80211_IFTYPE_NAN: 2833 default: 2834 return -EOPNOTSUPP; 2835 } 2836 2837 return ieee80211_request_scan(sdata, req); 2838 } 2839 2840 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2841 { 2842 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2843 } 2844 2845 static int 2846 ieee80211_sched_scan_start(struct wiphy *wiphy, 2847 struct net_device *dev, 2848 struct cfg80211_sched_scan_request *req) 2849 { 2850 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2851 2852 if (!sdata->local->ops->sched_scan_start) 2853 return -EOPNOTSUPP; 2854 2855 return ieee80211_request_sched_scan_start(sdata, req); 2856 } 2857 2858 static int 2859 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2860 u64 reqid) 2861 { 2862 struct ieee80211_local *local = wiphy_priv(wiphy); 2863 2864 if (!local->ops->sched_scan_stop) 2865 return -EOPNOTSUPP; 2866 2867 return ieee80211_request_sched_scan_stop(local); 2868 } 2869 2870 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2871 struct cfg80211_auth_request *req) 2872 { 2873 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2874 } 2875 2876 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2877 struct cfg80211_assoc_request *req) 2878 { 2879 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2880 } 2881 2882 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2883 struct cfg80211_deauth_request *req) 2884 { 2885 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2886 } 2887 2888 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2889 struct cfg80211_disassoc_request *req) 2890 { 2891 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2892 } 2893 2894 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2895 struct cfg80211_ibss_params *params) 2896 { 2897 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2898 } 2899 2900 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2901 { 2902 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2903 } 2904 2905 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2906 struct ocb_setup *setup) 2907 { 2908 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2909 } 2910 2911 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2912 { 2913 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2914 } 2915 2916 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2917 int rate[NUM_NL80211_BANDS]) 2918 { 2919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2920 2921 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2922 sizeof(int) * NUM_NL80211_BANDS); 2923 2924 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2925 BSS_CHANGED_MCAST_RATE); 2926 2927 return 0; 2928 } 2929 2930 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2931 { 2932 struct ieee80211_local *local = wiphy_priv(wiphy); 2933 int err; 2934 2935 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2936 ieee80211_check_fast_xmit_all(local); 2937 2938 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2939 2940 if (err) { 2941 ieee80211_check_fast_xmit_all(local); 2942 return err; 2943 } 2944 } 2945 2946 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2947 (changed & WIPHY_PARAM_DYN_ACK)) { 2948 s16 coverage_class; 2949 2950 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2951 wiphy->coverage_class : -1; 2952 err = drv_set_coverage_class(local, coverage_class); 2953 2954 if (err) 2955 return err; 2956 } 2957 2958 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2959 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2960 2961 if (err) 2962 return err; 2963 } 2964 2965 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2966 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2967 return -EINVAL; 2968 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2969 } 2970 if (changed & WIPHY_PARAM_RETRY_LONG) { 2971 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2972 return -EINVAL; 2973 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2974 } 2975 if (changed & 2976 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2977 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2978 2979 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2980 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2981 WIPHY_PARAM_TXQ_QUANTUM)) 2982 ieee80211_txq_set_params(local); 2983 2984 return 0; 2985 } 2986 2987 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2988 struct wireless_dev *wdev, 2989 enum nl80211_tx_power_setting type, int mbm) 2990 { 2991 struct ieee80211_local *local = wiphy_priv(wiphy); 2992 struct ieee80211_sub_if_data *sdata; 2993 enum nl80211_tx_power_setting txp_type = type; 2994 bool update_txp_type = false; 2995 bool has_monitor = false; 2996 2997 lockdep_assert_wiphy(local->hw.wiphy); 2998 2999 if (wdev) { 3000 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3001 3002 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3003 sdata = wiphy_dereference(local->hw.wiphy, 3004 local->monitor_sdata); 3005 if (!sdata) 3006 return -EOPNOTSUPP; 3007 } 3008 3009 switch (type) { 3010 case NL80211_TX_POWER_AUTOMATIC: 3011 sdata->deflink.user_power_level = 3012 IEEE80211_UNSET_POWER_LEVEL; 3013 txp_type = NL80211_TX_POWER_LIMITED; 3014 break; 3015 case NL80211_TX_POWER_LIMITED: 3016 case NL80211_TX_POWER_FIXED: 3017 if (mbm < 0 || (mbm % 100)) 3018 return -EOPNOTSUPP; 3019 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3020 break; 3021 } 3022 3023 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3024 update_txp_type = true; 3025 sdata->vif.bss_conf.txpower_type = txp_type; 3026 } 3027 3028 ieee80211_recalc_txpower(sdata, update_txp_type); 3029 3030 return 0; 3031 } 3032 3033 switch (type) { 3034 case NL80211_TX_POWER_AUTOMATIC: 3035 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3036 txp_type = NL80211_TX_POWER_LIMITED; 3037 break; 3038 case NL80211_TX_POWER_LIMITED: 3039 case NL80211_TX_POWER_FIXED: 3040 if (mbm < 0 || (mbm % 100)) 3041 return -EOPNOTSUPP; 3042 local->user_power_level = MBM_TO_DBM(mbm); 3043 break; 3044 } 3045 3046 list_for_each_entry(sdata, &local->interfaces, list) { 3047 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3048 has_monitor = true; 3049 continue; 3050 } 3051 sdata->deflink.user_power_level = local->user_power_level; 3052 if (txp_type != sdata->vif.bss_conf.txpower_type) 3053 update_txp_type = true; 3054 sdata->vif.bss_conf.txpower_type = txp_type; 3055 } 3056 list_for_each_entry(sdata, &local->interfaces, list) { 3057 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3058 continue; 3059 ieee80211_recalc_txpower(sdata, update_txp_type); 3060 } 3061 3062 if (has_monitor) { 3063 sdata = wiphy_dereference(local->hw.wiphy, 3064 local->monitor_sdata); 3065 if (sdata) { 3066 sdata->deflink.user_power_level = local->user_power_level; 3067 if (txp_type != sdata->vif.bss_conf.txpower_type) 3068 update_txp_type = true; 3069 sdata->vif.bss_conf.txpower_type = txp_type; 3070 3071 ieee80211_recalc_txpower(sdata, update_txp_type); 3072 } 3073 } 3074 3075 return 0; 3076 } 3077 3078 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3079 struct wireless_dev *wdev, 3080 int *dbm) 3081 { 3082 struct ieee80211_local *local = wiphy_priv(wiphy); 3083 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3084 3085 if (local->ops->get_txpower) 3086 return drv_get_txpower(local, sdata, dbm); 3087 3088 if (local->emulate_chanctx) 3089 *dbm = local->hw.conf.power_level; 3090 else 3091 *dbm = sdata->vif.bss_conf.txpower; 3092 3093 /* INT_MIN indicates no power level was set yet */ 3094 if (*dbm == INT_MIN) 3095 return -EINVAL; 3096 3097 return 0; 3098 } 3099 3100 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3101 { 3102 struct ieee80211_local *local = wiphy_priv(wiphy); 3103 3104 drv_rfkill_poll(local); 3105 } 3106 3107 #ifdef CONFIG_NL80211_TESTMODE 3108 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3109 struct wireless_dev *wdev, 3110 void *data, int len) 3111 { 3112 struct ieee80211_local *local = wiphy_priv(wiphy); 3113 struct ieee80211_vif *vif = NULL; 3114 3115 if (!local->ops->testmode_cmd) 3116 return -EOPNOTSUPP; 3117 3118 if (wdev) { 3119 struct ieee80211_sub_if_data *sdata; 3120 3121 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3122 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3123 vif = &sdata->vif; 3124 } 3125 3126 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3127 } 3128 3129 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3130 struct sk_buff *skb, 3131 struct netlink_callback *cb, 3132 void *data, int len) 3133 { 3134 struct ieee80211_local *local = wiphy_priv(wiphy); 3135 3136 if (!local->ops->testmode_dump) 3137 return -EOPNOTSUPP; 3138 3139 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3140 } 3141 #endif 3142 3143 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3144 struct ieee80211_link_data *link, 3145 enum ieee80211_smps_mode smps_mode) 3146 { 3147 const u8 *ap; 3148 enum ieee80211_smps_mode old_req; 3149 int err; 3150 struct sta_info *sta; 3151 bool tdls_peer_found = false; 3152 3153 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3154 3155 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3156 return -EINVAL; 3157 3158 if (ieee80211_vif_is_mld(&sdata->vif) && 3159 !(sdata->vif.active_links & BIT(link->link_id))) 3160 return 0; 3161 3162 old_req = link->u.mgd.req_smps; 3163 link->u.mgd.req_smps = smps_mode; 3164 3165 /* The driver indicated that EML is enabled for the interface, which 3166 * implies that SMPS flows towards the AP should be stopped. 3167 */ 3168 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3169 return 0; 3170 3171 if (old_req == smps_mode && 3172 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3173 return 0; 3174 3175 /* 3176 * If not associated, or current association is not an HT 3177 * association, there's no need to do anything, just store 3178 * the new value until we associate. 3179 */ 3180 if (!sdata->u.mgd.associated || 3181 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3182 return 0; 3183 3184 ap = sdata->vif.cfg.ap_addr; 3185 3186 rcu_read_lock(); 3187 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3188 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3189 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3190 continue; 3191 3192 tdls_peer_found = true; 3193 break; 3194 } 3195 rcu_read_unlock(); 3196 3197 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3198 if (tdls_peer_found || !sdata->u.mgd.powersave) 3199 smps_mode = IEEE80211_SMPS_OFF; 3200 else 3201 smps_mode = IEEE80211_SMPS_DYNAMIC; 3202 } 3203 3204 /* send SM PS frame to AP */ 3205 err = ieee80211_send_smps_action(sdata, smps_mode, 3206 ap, ap, 3207 ieee80211_vif_is_mld(&sdata->vif) ? 3208 link->link_id : -1); 3209 if (err) 3210 link->u.mgd.req_smps = old_req; 3211 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3212 ieee80211_teardown_tdls_peers(sdata); 3213 3214 return err; 3215 } 3216 3217 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3218 bool enabled, int timeout) 3219 { 3220 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3221 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3222 unsigned int link_id; 3223 3224 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3225 return -EOPNOTSUPP; 3226 3227 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3228 return -EOPNOTSUPP; 3229 3230 if (enabled == sdata->u.mgd.powersave && 3231 timeout == local->dynamic_ps_forced_timeout) 3232 return 0; 3233 3234 sdata->u.mgd.powersave = enabled; 3235 local->dynamic_ps_forced_timeout = timeout; 3236 3237 /* no change, but if automatic follow powersave */ 3238 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3239 struct ieee80211_link_data *link; 3240 3241 link = sdata_dereference(sdata->link[link_id], sdata); 3242 3243 if (!link) 3244 continue; 3245 __ieee80211_request_smps_mgd(sdata, link, 3246 link->u.mgd.req_smps); 3247 } 3248 3249 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3250 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3251 3252 ieee80211_recalc_ps(local); 3253 ieee80211_recalc_ps_vif(sdata); 3254 ieee80211_check_fast_rx_iface(sdata); 3255 3256 return 0; 3257 } 3258 3259 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3260 struct net_device *dev, 3261 s32 rssi_thold, u32 rssi_hyst) 3262 { 3263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3264 struct ieee80211_vif *vif = &sdata->vif; 3265 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3266 3267 if (rssi_thold == bss_conf->cqm_rssi_thold && 3268 rssi_hyst == bss_conf->cqm_rssi_hyst) 3269 return 0; 3270 3271 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3272 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3273 return -EOPNOTSUPP; 3274 3275 bss_conf->cqm_rssi_thold = rssi_thold; 3276 bss_conf->cqm_rssi_hyst = rssi_hyst; 3277 bss_conf->cqm_rssi_low = 0; 3278 bss_conf->cqm_rssi_high = 0; 3279 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3280 3281 /* tell the driver upon association, unless already associated */ 3282 if (sdata->u.mgd.associated && 3283 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3284 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3285 BSS_CHANGED_CQM); 3286 3287 return 0; 3288 } 3289 3290 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3291 struct net_device *dev, 3292 s32 rssi_low, s32 rssi_high) 3293 { 3294 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3295 struct ieee80211_vif *vif = &sdata->vif; 3296 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3297 3298 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3299 return -EOPNOTSUPP; 3300 3301 bss_conf->cqm_rssi_low = rssi_low; 3302 bss_conf->cqm_rssi_high = rssi_high; 3303 bss_conf->cqm_rssi_thold = 0; 3304 bss_conf->cqm_rssi_hyst = 0; 3305 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3306 3307 /* tell the driver upon association, unless already associated */ 3308 if (sdata->u.mgd.associated && 3309 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3310 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3311 BSS_CHANGED_CQM); 3312 3313 return 0; 3314 } 3315 3316 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3317 struct net_device *dev, 3318 unsigned int link_id, 3319 const u8 *addr, 3320 const struct cfg80211_bitrate_mask *mask) 3321 { 3322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3323 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3324 int i, ret; 3325 3326 if (!ieee80211_sdata_running(sdata)) 3327 return -ENETDOWN; 3328 3329 /* 3330 * If active validate the setting and reject it if it doesn't leave 3331 * at least one basic rate usable, since we really have to be able 3332 * to send something, and if we're an AP we have to be able to do 3333 * so at a basic rate so that all clients can receive it. 3334 */ 3335 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3336 sdata->vif.bss_conf.chanreq.oper.chan) { 3337 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3338 enum nl80211_band band; 3339 3340 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3341 3342 if (!(mask->control[band].legacy & basic_rates)) 3343 return -EINVAL; 3344 } 3345 3346 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3347 ret = drv_set_bitrate_mask(local, sdata, mask); 3348 if (ret) 3349 return ret; 3350 } 3351 3352 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3353 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3354 int j; 3355 3356 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3357 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3358 sizeof(mask->control[i].ht_mcs)); 3359 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3360 mask->control[i].vht_mcs, 3361 sizeof(mask->control[i].vht_mcs)); 3362 3363 sdata->rc_has_mcs_mask[i] = false; 3364 sdata->rc_has_vht_mcs_mask[i] = false; 3365 if (!sband) 3366 continue; 3367 3368 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3369 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3370 sdata->rc_has_mcs_mask[i] = true; 3371 break; 3372 } 3373 } 3374 3375 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3376 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3377 sdata->rc_has_vht_mcs_mask[i] = true; 3378 break; 3379 } 3380 } 3381 } 3382 3383 return 0; 3384 } 3385 3386 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3387 struct net_device *dev, 3388 struct cfg80211_chan_def *chandef, 3389 u32 cac_time_ms) 3390 { 3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3392 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3393 struct ieee80211_local *local = sdata->local; 3394 int err; 3395 3396 lockdep_assert_wiphy(local->hw.wiphy); 3397 3398 if (!list_empty(&local->roc_list) || local->scanning) { 3399 err = -EBUSY; 3400 goto out_unlock; 3401 } 3402 3403 /* whatever, but channel contexts should not complain about that one */ 3404 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3405 sdata->deflink.needed_rx_chains = local->rx_chains; 3406 3407 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 3408 IEEE80211_CHANCTX_SHARED); 3409 if (err) 3410 goto out_unlock; 3411 3412 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3413 msecs_to_jiffies(cac_time_ms)); 3414 3415 out_unlock: 3416 return err; 3417 } 3418 3419 static void ieee80211_end_cac(struct wiphy *wiphy, 3420 struct net_device *dev) 3421 { 3422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3423 struct ieee80211_local *local = sdata->local; 3424 3425 lockdep_assert_wiphy(local->hw.wiphy); 3426 3427 list_for_each_entry(sdata, &local->interfaces, list) { 3428 /* it might be waiting for the local->mtx, but then 3429 * by the time it gets it, sdata->wdev.cac_started 3430 * will no longer be true 3431 */ 3432 wiphy_delayed_work_cancel(wiphy, 3433 &sdata->deflink.dfs_cac_timer_work); 3434 3435 if (sdata->wdev.cac_started) { 3436 ieee80211_link_release_channel(&sdata->deflink); 3437 sdata->wdev.cac_started = false; 3438 } 3439 } 3440 } 3441 3442 static struct cfg80211_beacon_data * 3443 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3444 { 3445 struct cfg80211_beacon_data *new_beacon; 3446 u8 *pos; 3447 int len; 3448 3449 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3450 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3451 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3452 3453 if (beacon->mbssid_ies) 3454 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3455 beacon->rnr_ies, 3456 beacon->mbssid_ies->cnt); 3457 3458 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3459 if (!new_beacon) 3460 return NULL; 3461 3462 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3463 new_beacon->mbssid_ies = 3464 kzalloc(struct_size(new_beacon->mbssid_ies, 3465 elem, beacon->mbssid_ies->cnt), 3466 GFP_KERNEL); 3467 if (!new_beacon->mbssid_ies) { 3468 kfree(new_beacon); 3469 return NULL; 3470 } 3471 3472 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3473 new_beacon->rnr_ies = 3474 kzalloc(struct_size(new_beacon->rnr_ies, 3475 elem, beacon->rnr_ies->cnt), 3476 GFP_KERNEL); 3477 if (!new_beacon->rnr_ies) { 3478 kfree(new_beacon->mbssid_ies); 3479 kfree(new_beacon); 3480 return NULL; 3481 } 3482 } 3483 } 3484 3485 pos = (u8 *)(new_beacon + 1); 3486 if (beacon->head_len) { 3487 new_beacon->head_len = beacon->head_len; 3488 new_beacon->head = pos; 3489 memcpy(pos, beacon->head, beacon->head_len); 3490 pos += beacon->head_len; 3491 } 3492 if (beacon->tail_len) { 3493 new_beacon->tail_len = beacon->tail_len; 3494 new_beacon->tail = pos; 3495 memcpy(pos, beacon->tail, beacon->tail_len); 3496 pos += beacon->tail_len; 3497 } 3498 if (beacon->beacon_ies_len) { 3499 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3500 new_beacon->beacon_ies = pos; 3501 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3502 pos += beacon->beacon_ies_len; 3503 } 3504 if (beacon->proberesp_ies_len) { 3505 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3506 new_beacon->proberesp_ies = pos; 3507 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3508 pos += beacon->proberesp_ies_len; 3509 } 3510 if (beacon->assocresp_ies_len) { 3511 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3512 new_beacon->assocresp_ies = pos; 3513 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3514 pos += beacon->assocresp_ies_len; 3515 } 3516 if (beacon->probe_resp_len) { 3517 new_beacon->probe_resp_len = beacon->probe_resp_len; 3518 new_beacon->probe_resp = pos; 3519 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3520 pos += beacon->probe_resp_len; 3521 } 3522 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3523 pos += ieee80211_copy_mbssid_beacon(pos, 3524 new_beacon->mbssid_ies, 3525 beacon->mbssid_ies); 3526 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3527 pos += ieee80211_copy_rnr_beacon(pos, 3528 new_beacon->rnr_ies, 3529 beacon->rnr_ies); 3530 } 3531 3532 /* might copy -1, meaning no changes requested */ 3533 new_beacon->ftm_responder = beacon->ftm_responder; 3534 if (beacon->lci) { 3535 new_beacon->lci_len = beacon->lci_len; 3536 new_beacon->lci = pos; 3537 memcpy(pos, beacon->lci, beacon->lci_len); 3538 pos += beacon->lci_len; 3539 } 3540 if (beacon->civicloc) { 3541 new_beacon->civicloc_len = beacon->civicloc_len; 3542 new_beacon->civicloc = pos; 3543 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3544 pos += beacon->civicloc_len; 3545 } 3546 3547 return new_beacon; 3548 } 3549 3550 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3551 { 3552 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3553 struct ieee80211_local *local = sdata->local; 3554 struct ieee80211_link_data *link_data; 3555 3556 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3557 return; 3558 3559 rcu_read_lock(); 3560 3561 link_data = rcu_dereference(sdata->link[link_id]); 3562 if (WARN_ON(!link_data)) { 3563 rcu_read_unlock(); 3564 return; 3565 } 3566 3567 /* TODO: MBSSID with MLO changes */ 3568 if (vif->mbssid_tx_vif == vif) { 3569 /* Trigger ieee80211_csa_finish() on the non-transmitting 3570 * interfaces when channel switch is received on 3571 * transmitting interface 3572 */ 3573 struct ieee80211_sub_if_data *iter; 3574 3575 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3576 if (!ieee80211_sdata_running(iter)) 3577 continue; 3578 3579 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3580 continue; 3581 3582 wiphy_work_queue(iter->local->hw.wiphy, 3583 &iter->deflink.csa_finalize_work); 3584 } 3585 } 3586 wiphy_work_queue(local->hw.wiphy, &link_data->csa_finalize_work); 3587 3588 rcu_read_unlock(); 3589 } 3590 EXPORT_SYMBOL(ieee80211_csa_finish); 3591 3592 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3593 { 3594 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3595 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3596 struct ieee80211_local *local = sdata->local; 3597 3598 sdata->deflink.csa_block_tx = block_tx; 3599 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3600 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3601 } 3602 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3603 3604 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3605 u64 *changed) 3606 { 3607 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3608 int err; 3609 3610 switch (sdata->vif.type) { 3611 case NL80211_IFTYPE_AP: 3612 if (!link_data->u.ap.next_beacon) 3613 return -EINVAL; 3614 3615 err = ieee80211_assign_beacon(sdata, link_data, 3616 link_data->u.ap.next_beacon, 3617 NULL, NULL, changed); 3618 ieee80211_free_next_beacon(link_data); 3619 3620 if (err < 0) 3621 return err; 3622 break; 3623 case NL80211_IFTYPE_ADHOC: 3624 err = ieee80211_ibss_finish_csa(sdata, changed); 3625 if (err < 0) 3626 return err; 3627 break; 3628 #ifdef CONFIG_MAC80211_MESH 3629 case NL80211_IFTYPE_MESH_POINT: 3630 err = ieee80211_mesh_finish_csa(sdata, changed); 3631 if (err < 0) 3632 return err; 3633 break; 3634 #endif 3635 default: 3636 WARN_ON(1); 3637 return -EINVAL; 3638 } 3639 3640 return 0; 3641 } 3642 3643 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3644 { 3645 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3646 struct ieee80211_local *local = sdata->local; 3647 struct ieee80211_bss_conf *link_conf = link_data->conf; 3648 u64 changed = 0; 3649 int err; 3650 3651 lockdep_assert_wiphy(local->hw.wiphy); 3652 3653 /* 3654 * using reservation isn't immediate as it may be deferred until later 3655 * with multi-vif. once reservation is complete it will re-schedule the 3656 * work with no reserved_chanctx so verify chandef to check if it 3657 * completed successfully 3658 */ 3659 3660 if (link_data->reserved_chanctx) { 3661 /* 3662 * with multi-vif csa driver may call ieee80211_csa_finish() 3663 * many times while waiting for other interfaces to use their 3664 * reservations 3665 */ 3666 if (link_data->reserved_ready) 3667 return 0; 3668 3669 return ieee80211_link_use_reserved_context(link_data); 3670 } 3671 3672 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3673 &link_data->csa_chanreq.oper)) 3674 return -EINVAL; 3675 3676 link_conf->csa_active = false; 3677 3678 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3679 if (err) 3680 return err; 3681 3682 ieee80211_link_info_change_notify(sdata, link_data, changed); 3683 3684 if (link_data->csa_block_tx) { 3685 ieee80211_wake_vif_queues(local, sdata, 3686 IEEE80211_QUEUE_STOP_REASON_CSA); 3687 link_data->csa_block_tx = false; 3688 } 3689 3690 err = drv_post_channel_switch(link_data); 3691 if (err) 3692 return err; 3693 3694 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chanreq.oper, 3695 link_data->link_id); 3696 3697 return 0; 3698 } 3699 3700 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3701 { 3702 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3703 3704 if (__ieee80211_csa_finalize(link_data)) { 3705 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3706 link_data->link_id); 3707 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3708 GFP_KERNEL); 3709 } 3710 } 3711 3712 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3713 { 3714 struct ieee80211_link_data *link = 3715 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3716 struct ieee80211_sub_if_data *sdata = link->sdata; 3717 struct ieee80211_local *local = sdata->local; 3718 3719 lockdep_assert_wiphy(local->hw.wiphy); 3720 3721 /* AP might have been stopped while waiting for the lock. */ 3722 if (!link->conf->csa_active) 3723 return; 3724 3725 if (!ieee80211_sdata_running(sdata)) 3726 return; 3727 3728 ieee80211_csa_finalize(link); 3729 } 3730 3731 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3732 struct cfg80211_csa_settings *params, 3733 u64 *changed) 3734 { 3735 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3736 struct ieee80211_csa_settings csa = {}; 3737 int err; 3738 3739 switch (sdata->vif.type) { 3740 case NL80211_IFTYPE_AP: 3741 link_data->u.ap.next_beacon = 3742 cfg80211_beacon_dup(¶ms->beacon_after); 3743 if (!link_data->u.ap.next_beacon) 3744 return -ENOMEM; 3745 3746 /* 3747 * With a count of 0, we don't have to wait for any 3748 * TBTT before switching, so complete the CSA 3749 * immediately. In theory, with a count == 1 we 3750 * should delay the switch until just before the next 3751 * TBTT, but that would complicate things so we switch 3752 * immediately too. If we would delay the switch 3753 * until the next TBTT, we would have to set the probe 3754 * response here. 3755 * 3756 * TODO: A channel switch with count <= 1 without 3757 * sending a CSA action frame is kind of useless, 3758 * because the clients won't know we're changing 3759 * channels. The action frame must be implemented 3760 * either here or in the userspace. 3761 */ 3762 if (params->count <= 1) 3763 break; 3764 3765 if ((params->n_counter_offsets_beacon > 3766 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3767 (params->n_counter_offsets_presp > 3768 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3769 ieee80211_free_next_beacon(link_data); 3770 return -EINVAL; 3771 } 3772 3773 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3774 csa.counter_offsets_presp = params->counter_offsets_presp; 3775 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3776 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3777 csa.count = params->count; 3778 3779 err = ieee80211_assign_beacon(sdata, link_data, 3780 ¶ms->beacon_csa, &csa, 3781 NULL, changed); 3782 if (err < 0) { 3783 ieee80211_free_next_beacon(link_data); 3784 return err; 3785 } 3786 3787 break; 3788 case NL80211_IFTYPE_ADHOC: 3789 if (!sdata->vif.cfg.ibss_joined) 3790 return -EINVAL; 3791 3792 if (params->chandef.width != sdata->u.ibss.chandef.width) 3793 return -EINVAL; 3794 3795 switch (params->chandef.width) { 3796 case NL80211_CHAN_WIDTH_40: 3797 if (cfg80211_get_chandef_type(¶ms->chandef) != 3798 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3799 return -EINVAL; 3800 break; 3801 case NL80211_CHAN_WIDTH_5: 3802 case NL80211_CHAN_WIDTH_10: 3803 case NL80211_CHAN_WIDTH_20_NOHT: 3804 case NL80211_CHAN_WIDTH_20: 3805 break; 3806 default: 3807 return -EINVAL; 3808 } 3809 3810 /* changes into another band are not supported */ 3811 if (sdata->u.ibss.chandef.chan->band != 3812 params->chandef.chan->band) 3813 return -EINVAL; 3814 3815 /* see comments in the NL80211_IFTYPE_AP block */ 3816 if (params->count > 1) { 3817 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3818 if (err < 0) 3819 return err; 3820 } 3821 3822 ieee80211_send_action_csa(sdata, params); 3823 3824 break; 3825 #ifdef CONFIG_MAC80211_MESH 3826 case NL80211_IFTYPE_MESH_POINT: { 3827 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3828 3829 /* changes into another band are not supported */ 3830 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3831 params->chandef.chan->band) 3832 return -EINVAL; 3833 3834 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3835 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3836 if (!ifmsh->pre_value) 3837 ifmsh->pre_value = 1; 3838 else 3839 ifmsh->pre_value++; 3840 } 3841 3842 /* see comments in the NL80211_IFTYPE_AP block */ 3843 if (params->count > 1) { 3844 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3845 if (err < 0) { 3846 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3847 return err; 3848 } 3849 } 3850 3851 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3852 ieee80211_send_action_csa(sdata, params); 3853 3854 break; 3855 } 3856 #endif 3857 default: 3858 return -EOPNOTSUPP; 3859 } 3860 3861 return 0; 3862 } 3863 3864 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3865 { 3866 sdata->vif.bss_conf.color_change_active = false; 3867 3868 ieee80211_free_next_beacon(&sdata->deflink); 3869 3870 cfg80211_color_change_aborted_notify(sdata->dev); 3871 } 3872 3873 static int 3874 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3875 struct cfg80211_csa_settings *params) 3876 { 3877 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3878 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 3879 struct ieee80211_local *local = sdata->local; 3880 struct ieee80211_channel_switch ch_switch; 3881 struct ieee80211_chanctx_conf *conf; 3882 struct ieee80211_chanctx *chanctx; 3883 struct ieee80211_bss_conf *link_conf; 3884 struct ieee80211_link_data *link_data; 3885 u64 changed = 0; 3886 u8 link_id = params->link_id; 3887 int err; 3888 3889 lockdep_assert_wiphy(local->hw.wiphy); 3890 3891 if (!list_empty(&local->roc_list) || local->scanning) 3892 return -EBUSY; 3893 3894 if (sdata->wdev.cac_started) 3895 return -EBUSY; 3896 3897 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3898 return -EINVAL; 3899 3900 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3901 if (!link_data) 3902 return -ENOLINK; 3903 3904 link_conf = link_data->conf; 3905 3906 if (chanreq.oper.punctured && !link_conf->eht_support) 3907 return -EINVAL; 3908 3909 /* don't allow another channel switch if one is already active. */ 3910 if (link_conf->csa_active) 3911 return -EBUSY; 3912 3913 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 3914 if (!conf) { 3915 err = -EBUSY; 3916 goto out; 3917 } 3918 3919 if (params->chandef.chan->freq_offset) { 3920 /* this may work, but is untested */ 3921 err = -EOPNOTSUPP; 3922 goto out; 3923 } 3924 3925 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3926 3927 ch_switch.timestamp = 0; 3928 ch_switch.device_timestamp = 0; 3929 ch_switch.block_tx = params->block_tx; 3930 ch_switch.chandef = chanreq.oper; 3931 ch_switch.count = params->count; 3932 3933 err = drv_pre_channel_switch(sdata, &ch_switch); 3934 if (err) 3935 goto out; 3936 3937 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 3938 chanctx->mode, 3939 params->radar_required); 3940 if (err) 3941 goto out; 3942 3943 /* if reservation is invalid then this will fail */ 3944 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3945 if (err) { 3946 ieee80211_link_unreserve_chanctx(link_data); 3947 goto out; 3948 } 3949 3950 /* if there is a color change in progress, abort it */ 3951 if (link_conf->color_change_active) 3952 ieee80211_color_change_abort(sdata); 3953 3954 err = ieee80211_set_csa_beacon(link_data, params, &changed); 3955 if (err) { 3956 ieee80211_link_unreserve_chanctx(link_data); 3957 goto out; 3958 } 3959 3960 link_data->csa_chanreq = chanreq; 3961 link_data->csa_block_tx = params->block_tx; 3962 link_conf->csa_active = true; 3963 3964 if (link_data->csa_block_tx) 3965 ieee80211_stop_vif_queues(local, sdata, 3966 IEEE80211_QUEUE_STOP_REASON_CSA); 3967 3968 cfg80211_ch_switch_started_notify(sdata->dev, 3969 &link_data->csa_chanreq.oper, 0, 3970 params->count, params->block_tx); 3971 3972 if (changed) { 3973 ieee80211_link_info_change_notify(sdata, link_data, changed); 3974 drv_channel_switch_beacon(sdata, &link_data->csa_chanreq.oper); 3975 } else { 3976 /* if the beacon didn't change, we can finalize immediately */ 3977 ieee80211_csa_finalize(link_data); 3978 } 3979 3980 out: 3981 return err; 3982 } 3983 3984 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3985 struct cfg80211_csa_settings *params) 3986 { 3987 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3988 struct ieee80211_local *local = sdata->local; 3989 3990 lockdep_assert_wiphy(local->hw.wiphy); 3991 3992 return __ieee80211_channel_switch(wiphy, dev, params); 3993 } 3994 3995 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3996 { 3997 lockdep_assert_wiphy(local->hw.wiphy); 3998 3999 local->roc_cookie_counter++; 4000 4001 /* wow, you wrapped 64 bits ... more likely a bug */ 4002 if (WARN_ON(local->roc_cookie_counter == 0)) 4003 local->roc_cookie_counter++; 4004 4005 return local->roc_cookie_counter; 4006 } 4007 4008 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4009 u64 *cookie, gfp_t gfp) 4010 { 4011 unsigned long spin_flags; 4012 struct sk_buff *ack_skb; 4013 int id; 4014 4015 ack_skb = skb_copy(skb, gfp); 4016 if (!ack_skb) 4017 return -ENOMEM; 4018 4019 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4020 id = idr_alloc(&local->ack_status_frames, ack_skb, 4021 1, 0x2000, GFP_ATOMIC); 4022 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4023 4024 if (id < 0) { 4025 kfree_skb(ack_skb); 4026 return -ENOMEM; 4027 } 4028 4029 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4030 IEEE80211_SKB_CB(skb)->status_data = id; 4031 4032 *cookie = ieee80211_mgmt_tx_cookie(local); 4033 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4034 4035 return 0; 4036 } 4037 4038 static void 4039 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4040 struct wireless_dev *wdev, 4041 struct mgmt_frame_regs *upd) 4042 { 4043 struct ieee80211_local *local = wiphy_priv(wiphy); 4044 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4045 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4046 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4047 bool global_change, intf_change; 4048 4049 global_change = 4050 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4051 (local->rx_mcast_action_reg != 4052 !!(upd->global_mcast_stypes & action_mask)); 4053 local->probe_req_reg = upd->global_stypes & preq_mask; 4054 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4055 4056 intf_change = (sdata->vif.probe_req_reg != 4057 !!(upd->interface_stypes & preq_mask)) || 4058 (sdata->vif.rx_mcast_action_reg != 4059 !!(upd->interface_mcast_stypes & action_mask)); 4060 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4061 sdata->vif.rx_mcast_action_reg = 4062 upd->interface_mcast_stypes & action_mask; 4063 4064 if (!local->open_count) 4065 return; 4066 4067 if (intf_change && ieee80211_sdata_running(sdata)) 4068 drv_config_iface_filter(local, sdata, 4069 sdata->vif.probe_req_reg ? 4070 FIF_PROBE_REQ : 0, 4071 FIF_PROBE_REQ); 4072 4073 if (global_change) 4074 ieee80211_configure_filter(local); 4075 } 4076 4077 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4078 { 4079 struct ieee80211_local *local = wiphy_priv(wiphy); 4080 int ret; 4081 4082 if (local->started) 4083 return -EOPNOTSUPP; 4084 4085 ret = drv_set_antenna(local, tx_ant, rx_ant); 4086 if (ret) 4087 return ret; 4088 4089 local->rx_chains = hweight8(rx_ant); 4090 return 0; 4091 } 4092 4093 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4094 { 4095 struct ieee80211_local *local = wiphy_priv(wiphy); 4096 4097 return drv_get_antenna(local, tx_ant, rx_ant); 4098 } 4099 4100 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4101 struct net_device *dev, 4102 struct cfg80211_gtk_rekey_data *data) 4103 { 4104 struct ieee80211_local *local = wiphy_priv(wiphy); 4105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4106 4107 if (!local->ops->set_rekey_data) 4108 return -EOPNOTSUPP; 4109 4110 drv_set_rekey_data(local, sdata, data); 4111 4112 return 0; 4113 } 4114 4115 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4116 const u8 *peer, u64 *cookie) 4117 { 4118 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4119 struct ieee80211_local *local = sdata->local; 4120 struct ieee80211_qos_hdr *nullfunc; 4121 struct sk_buff *skb; 4122 int size = sizeof(*nullfunc); 4123 __le16 fc; 4124 bool qos; 4125 struct ieee80211_tx_info *info; 4126 struct sta_info *sta; 4127 struct ieee80211_chanctx_conf *chanctx_conf; 4128 enum nl80211_band band; 4129 int ret; 4130 4131 /* the lock is needed to assign the cookie later */ 4132 lockdep_assert_wiphy(local->hw.wiphy); 4133 4134 rcu_read_lock(); 4135 sta = sta_info_get_bss(sdata, peer); 4136 if (!sta) { 4137 ret = -ENOLINK; 4138 goto unlock; 4139 } 4140 4141 qos = sta->sta.wme; 4142 4143 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4144 if (WARN_ON(!chanctx_conf)) { 4145 ret = -EINVAL; 4146 goto unlock; 4147 } 4148 band = chanctx_conf->def.chan->band; 4149 4150 if (qos) { 4151 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4152 IEEE80211_STYPE_QOS_NULLFUNC | 4153 IEEE80211_FCTL_FROMDS); 4154 } else { 4155 size -= 2; 4156 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4157 IEEE80211_STYPE_NULLFUNC | 4158 IEEE80211_FCTL_FROMDS); 4159 } 4160 4161 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4162 if (!skb) { 4163 ret = -ENOMEM; 4164 goto unlock; 4165 } 4166 4167 skb->dev = dev; 4168 4169 skb_reserve(skb, local->hw.extra_tx_headroom); 4170 4171 nullfunc = skb_put(skb, size); 4172 nullfunc->frame_control = fc; 4173 nullfunc->duration_id = 0; 4174 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4175 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4176 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4177 nullfunc->seq_ctrl = 0; 4178 4179 info = IEEE80211_SKB_CB(skb); 4180 4181 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4182 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4183 info->band = band; 4184 4185 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4186 skb->priority = 7; 4187 if (qos) 4188 nullfunc->qos_ctrl = cpu_to_le16(7); 4189 4190 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4191 if (ret) { 4192 kfree_skb(skb); 4193 goto unlock; 4194 } 4195 4196 local_bh_disable(); 4197 ieee80211_xmit(sdata, sta, skb); 4198 local_bh_enable(); 4199 4200 ret = 0; 4201 unlock: 4202 rcu_read_unlock(); 4203 4204 return ret; 4205 } 4206 4207 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4208 struct wireless_dev *wdev, 4209 unsigned int link_id, 4210 struct cfg80211_chan_def *chandef) 4211 { 4212 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4213 struct ieee80211_local *local = wiphy_priv(wiphy); 4214 struct ieee80211_chanctx_conf *chanctx_conf; 4215 struct ieee80211_link_data *link; 4216 int ret = -ENODATA; 4217 4218 rcu_read_lock(); 4219 link = rcu_dereference(sdata->link[link_id]); 4220 if (!link) { 4221 ret = -ENOLINK; 4222 goto out; 4223 } 4224 4225 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4226 if (chanctx_conf) { 4227 *chandef = link->conf->chanreq.oper; 4228 ret = 0; 4229 } else if (local->open_count > 0 && 4230 local->open_count == local->monitors && 4231 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4232 *chandef = local->monitor_chanreq.oper; 4233 ret = 0; 4234 } 4235 out: 4236 rcu_read_unlock(); 4237 4238 return ret; 4239 } 4240 4241 #ifdef CONFIG_PM 4242 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4243 { 4244 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4245 } 4246 #endif 4247 4248 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4249 struct net_device *dev, 4250 struct cfg80211_qos_map *qos_map) 4251 { 4252 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4253 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4254 4255 if (qos_map) { 4256 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4257 if (!new_qos_map) 4258 return -ENOMEM; 4259 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4260 } else { 4261 /* A NULL qos_map was passed to disable QoS mapping */ 4262 new_qos_map = NULL; 4263 } 4264 4265 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4266 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4267 if (old_qos_map) 4268 kfree_rcu(old_qos_map, rcu_head); 4269 4270 return 0; 4271 } 4272 4273 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4274 struct net_device *dev, 4275 unsigned int link_id, 4276 struct cfg80211_chan_def *chandef) 4277 { 4278 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4279 struct ieee80211_link_data *link; 4280 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4281 int ret; 4282 u64 changed = 0; 4283 4284 link = sdata_dereference(sdata->link[link_id], sdata); 4285 4286 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4287 if (ret == 0) 4288 ieee80211_link_info_change_notify(sdata, link, changed); 4289 4290 return ret; 4291 } 4292 4293 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4294 u8 tsid, const u8 *peer, u8 up, 4295 u16 admitted_time) 4296 { 4297 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4298 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4299 int ac = ieee802_1d_to_ac[up]; 4300 4301 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4302 return -EOPNOTSUPP; 4303 4304 if (!(sdata->wmm_acm & BIT(up))) 4305 return -EINVAL; 4306 4307 if (ifmgd->tx_tspec[ac].admitted_time) 4308 return -EBUSY; 4309 4310 if (admitted_time) { 4311 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4312 ifmgd->tx_tspec[ac].tsid = tsid; 4313 ifmgd->tx_tspec[ac].up = up; 4314 } 4315 4316 return 0; 4317 } 4318 4319 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4320 u8 tsid, const u8 *peer) 4321 { 4322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4323 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4324 struct ieee80211_local *local = wiphy_priv(wiphy); 4325 int ac; 4326 4327 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4328 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4329 4330 /* skip unused entries */ 4331 if (!tx_tspec->admitted_time) 4332 continue; 4333 4334 if (tx_tspec->tsid != tsid) 4335 continue; 4336 4337 /* due to this new packets will be reassigned to non-ACM ACs */ 4338 tx_tspec->up = -1; 4339 4340 /* Make sure that all packets have been sent to avoid to 4341 * restore the QoS params on packets that are still on the 4342 * queues. 4343 */ 4344 synchronize_net(); 4345 ieee80211_flush_queues(local, sdata, false); 4346 4347 /* restore the normal QoS parameters 4348 * (unconditionally to avoid races) 4349 */ 4350 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4351 tx_tspec->downgraded = false; 4352 ieee80211_sta_handle_tspec_ac_params(sdata); 4353 4354 /* finally clear all the data */ 4355 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4356 4357 return 0; 4358 } 4359 4360 return -ENOENT; 4361 } 4362 4363 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4364 u8 inst_id, 4365 enum nl80211_nan_func_term_reason reason, 4366 gfp_t gfp) 4367 { 4368 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4369 struct cfg80211_nan_func *func; 4370 u64 cookie; 4371 4372 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4373 return; 4374 4375 spin_lock_bh(&sdata->u.nan.func_lock); 4376 4377 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4378 if (WARN_ON(!func)) { 4379 spin_unlock_bh(&sdata->u.nan.func_lock); 4380 return; 4381 } 4382 4383 cookie = func->cookie; 4384 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4385 4386 spin_unlock_bh(&sdata->u.nan.func_lock); 4387 4388 cfg80211_free_nan_func(func); 4389 4390 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4391 reason, cookie, gfp); 4392 } 4393 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4394 4395 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4396 struct cfg80211_nan_match_params *match, 4397 gfp_t gfp) 4398 { 4399 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4400 struct cfg80211_nan_func *func; 4401 4402 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4403 return; 4404 4405 spin_lock_bh(&sdata->u.nan.func_lock); 4406 4407 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4408 if (WARN_ON(!func)) { 4409 spin_unlock_bh(&sdata->u.nan.func_lock); 4410 return; 4411 } 4412 match->cookie = func->cookie; 4413 4414 spin_unlock_bh(&sdata->u.nan.func_lock); 4415 4416 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4417 } 4418 EXPORT_SYMBOL(ieee80211_nan_func_match); 4419 4420 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4421 struct net_device *dev, 4422 const bool enabled) 4423 { 4424 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4425 4426 sdata->u.ap.multicast_to_unicast = enabled; 4427 4428 return 0; 4429 } 4430 4431 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4432 struct txq_info *txqi) 4433 { 4434 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4435 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4436 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4437 } 4438 4439 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4440 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4441 txqstats->backlog_packets = txqi->tin.backlog_packets; 4442 } 4443 4444 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4445 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4446 txqstats->flows = txqi->tin.flows; 4447 } 4448 4449 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4450 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4451 txqstats->drops = txqi->cstats.drop_count; 4452 } 4453 4454 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4455 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4456 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4457 } 4458 4459 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4460 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4461 txqstats->overlimit = txqi->tin.overlimit; 4462 } 4463 4464 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4465 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4466 txqstats->collisions = txqi->tin.collisions; 4467 } 4468 4469 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4470 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4471 txqstats->tx_bytes = txqi->tin.tx_bytes; 4472 } 4473 4474 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4475 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4476 txqstats->tx_packets = txqi->tin.tx_packets; 4477 } 4478 } 4479 4480 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4481 struct wireless_dev *wdev, 4482 struct cfg80211_txq_stats *txqstats) 4483 { 4484 struct ieee80211_local *local = wiphy_priv(wiphy); 4485 struct ieee80211_sub_if_data *sdata; 4486 int ret = 0; 4487 4488 spin_lock_bh(&local->fq.lock); 4489 rcu_read_lock(); 4490 4491 if (wdev) { 4492 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4493 if (!sdata->vif.txq) { 4494 ret = 1; 4495 goto out; 4496 } 4497 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4498 } else { 4499 /* phy stats */ 4500 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4501 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4502 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4503 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4504 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4505 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4506 txqstats->backlog_packets = local->fq.backlog; 4507 txqstats->backlog_bytes = local->fq.memory_usage; 4508 txqstats->overlimit = local->fq.overlimit; 4509 txqstats->overmemory = local->fq.overmemory; 4510 txqstats->collisions = local->fq.collisions; 4511 txqstats->max_flows = local->fq.flows_cnt; 4512 } 4513 4514 out: 4515 rcu_read_unlock(); 4516 spin_unlock_bh(&local->fq.lock); 4517 4518 return ret; 4519 } 4520 4521 static int 4522 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4523 struct net_device *dev, 4524 struct cfg80211_ftm_responder_stats *ftm_stats) 4525 { 4526 struct ieee80211_local *local = wiphy_priv(wiphy); 4527 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4528 4529 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4530 } 4531 4532 static int 4533 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4534 struct cfg80211_pmsr_request *request) 4535 { 4536 struct ieee80211_local *local = wiphy_priv(wiphy); 4537 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4538 4539 return drv_start_pmsr(local, sdata, request); 4540 } 4541 4542 static void 4543 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4544 struct cfg80211_pmsr_request *request) 4545 { 4546 struct ieee80211_local *local = wiphy_priv(wiphy); 4547 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4548 4549 return drv_abort_pmsr(local, sdata, request); 4550 } 4551 4552 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4553 struct net_device *dev, 4554 struct cfg80211_tid_config *tid_conf) 4555 { 4556 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4557 struct sta_info *sta; 4558 4559 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4560 4561 if (!sdata->local->ops->set_tid_config) 4562 return -EOPNOTSUPP; 4563 4564 if (!tid_conf->peer) 4565 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4566 4567 sta = sta_info_get_bss(sdata, tid_conf->peer); 4568 if (!sta) 4569 return -ENOENT; 4570 4571 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4572 } 4573 4574 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4575 struct net_device *dev, 4576 const u8 *peer, u8 tids) 4577 { 4578 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4579 struct sta_info *sta; 4580 4581 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4582 4583 if (!sdata->local->ops->reset_tid_config) 4584 return -EOPNOTSUPP; 4585 4586 if (!peer) 4587 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4588 4589 sta = sta_info_get_bss(sdata, peer); 4590 if (!sta) 4591 return -ENOENT; 4592 4593 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4594 } 4595 4596 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4597 struct cfg80211_sar_specs *sar) 4598 { 4599 struct ieee80211_local *local = wiphy_priv(wiphy); 4600 4601 if (!local->ops->set_sar_specs) 4602 return -EOPNOTSUPP; 4603 4604 return local->ops->set_sar_specs(&local->hw, sar); 4605 } 4606 4607 static int 4608 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4609 u64 *changed) 4610 { 4611 switch (sdata->vif.type) { 4612 case NL80211_IFTYPE_AP: { 4613 int ret; 4614 4615 if (!sdata->deflink.u.ap.next_beacon) 4616 return -EINVAL; 4617 4618 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4619 sdata->deflink.u.ap.next_beacon, 4620 NULL, NULL, changed); 4621 ieee80211_free_next_beacon(&sdata->deflink); 4622 4623 if (ret < 0) 4624 return ret; 4625 4626 break; 4627 } 4628 default: 4629 WARN_ON_ONCE(1); 4630 return -EINVAL; 4631 } 4632 4633 return 0; 4634 } 4635 4636 static int 4637 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4638 struct cfg80211_color_change_settings *params, 4639 u64 *changed) 4640 { 4641 struct ieee80211_color_change_settings color_change = {}; 4642 int err; 4643 4644 switch (sdata->vif.type) { 4645 case NL80211_IFTYPE_AP: 4646 sdata->deflink.u.ap.next_beacon = 4647 cfg80211_beacon_dup(¶ms->beacon_next); 4648 if (!sdata->deflink.u.ap.next_beacon) 4649 return -ENOMEM; 4650 4651 if (params->count <= 1) 4652 break; 4653 4654 color_change.counter_offset_beacon = 4655 params->counter_offset_beacon; 4656 color_change.counter_offset_presp = 4657 params->counter_offset_presp; 4658 color_change.count = params->count; 4659 4660 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4661 ¶ms->beacon_color_change, 4662 NULL, &color_change, changed); 4663 if (err < 0) { 4664 ieee80211_free_next_beacon(&sdata->deflink); 4665 return err; 4666 } 4667 break; 4668 default: 4669 return -EOPNOTSUPP; 4670 } 4671 4672 return 0; 4673 } 4674 4675 static void 4676 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4677 u8 color, int enable, u64 changed) 4678 { 4679 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4680 4681 sdata->vif.bss_conf.he_bss_color.color = color; 4682 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4683 changed |= BSS_CHANGED_HE_BSS_COLOR; 4684 4685 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4686 4687 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4688 struct ieee80211_sub_if_data *child; 4689 4690 list_for_each_entry(child, &sdata->local->interfaces, list) { 4691 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4692 child->vif.bss_conf.he_bss_color.color = color; 4693 child->vif.bss_conf.he_bss_color.enabled = enable; 4694 ieee80211_link_info_change_notify(child, 4695 &child->deflink, 4696 BSS_CHANGED_HE_BSS_COLOR); 4697 } 4698 } 4699 } 4700 } 4701 4702 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4703 { 4704 struct ieee80211_local *local = sdata->local; 4705 u64 changed = 0; 4706 int err; 4707 4708 lockdep_assert_wiphy(local->hw.wiphy); 4709 4710 sdata->vif.bss_conf.color_change_active = false; 4711 4712 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4713 if (err) { 4714 cfg80211_color_change_aborted_notify(sdata->dev); 4715 return err; 4716 } 4717 4718 ieee80211_color_change_bss_config_notify(sdata, 4719 sdata->vif.bss_conf.color_change_color, 4720 1, changed); 4721 cfg80211_color_change_notify(sdata->dev); 4722 4723 return 0; 4724 } 4725 4726 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4727 struct wiphy_work *work) 4728 { 4729 struct ieee80211_sub_if_data *sdata = 4730 container_of(work, struct ieee80211_sub_if_data, 4731 deflink.color_change_finalize_work); 4732 struct ieee80211_local *local = sdata->local; 4733 4734 lockdep_assert_wiphy(local->hw.wiphy); 4735 4736 /* AP might have been stopped while waiting for the lock. */ 4737 if (!sdata->vif.bss_conf.color_change_active) 4738 return; 4739 4740 if (!ieee80211_sdata_running(sdata)) 4741 return; 4742 4743 ieee80211_color_change_finalize(sdata); 4744 } 4745 4746 void ieee80211_color_collision_detection_work(struct work_struct *work) 4747 { 4748 struct delayed_work *delayed_work = to_delayed_work(work); 4749 struct ieee80211_link_data *link = 4750 container_of(delayed_work, struct ieee80211_link_data, 4751 color_collision_detect_work); 4752 struct ieee80211_sub_if_data *sdata = link->sdata; 4753 4754 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4755 } 4756 4757 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4758 { 4759 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4760 4761 wiphy_work_queue(sdata->local->hw.wiphy, 4762 &sdata->deflink.color_change_finalize_work); 4763 } 4764 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4765 4766 void 4767 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4768 u64 color_bitmap) 4769 { 4770 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4771 struct ieee80211_link_data *link = &sdata->deflink; 4772 4773 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4774 return; 4775 4776 if (delayed_work_pending(&link->color_collision_detect_work)) 4777 return; 4778 4779 link->color_bitmap = color_bitmap; 4780 /* queue the color collision detection event every 500 ms in order to 4781 * avoid sending too much netlink messages to userspace. 4782 */ 4783 ieee80211_queue_delayed_work(&sdata->local->hw, 4784 &link->color_collision_detect_work, 4785 msecs_to_jiffies(500)); 4786 } 4787 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4788 4789 static int 4790 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4791 struct cfg80211_color_change_settings *params) 4792 { 4793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4794 struct ieee80211_local *local = sdata->local; 4795 u64 changed = 0; 4796 int err; 4797 4798 lockdep_assert_wiphy(local->hw.wiphy); 4799 4800 if (sdata->vif.bss_conf.nontransmitted) 4801 return -EINVAL; 4802 4803 /* don't allow another color change if one is already active or if csa 4804 * is active 4805 */ 4806 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4807 err = -EBUSY; 4808 goto out; 4809 } 4810 4811 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4812 if (err) 4813 goto out; 4814 4815 sdata->vif.bss_conf.color_change_active = true; 4816 sdata->vif.bss_conf.color_change_color = params->color; 4817 4818 cfg80211_color_change_started_notify(sdata->dev, params->count); 4819 4820 if (changed) 4821 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4822 else 4823 /* if the beacon didn't change, we can finalize immediately */ 4824 ieee80211_color_change_finalize(sdata); 4825 4826 out: 4827 4828 return err; 4829 } 4830 4831 static int 4832 ieee80211_set_radar_background(struct wiphy *wiphy, 4833 struct cfg80211_chan_def *chandef) 4834 { 4835 struct ieee80211_local *local = wiphy_priv(wiphy); 4836 4837 if (!local->ops->set_radar_background) 4838 return -EOPNOTSUPP; 4839 4840 return local->ops->set_radar_background(&local->hw, chandef); 4841 } 4842 4843 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4844 struct wireless_dev *wdev, 4845 unsigned int link_id) 4846 { 4847 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4848 4849 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4850 4851 if (wdev->use_4addr) 4852 return -EOPNOTSUPP; 4853 4854 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4855 } 4856 4857 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4858 struct wireless_dev *wdev, 4859 unsigned int link_id) 4860 { 4861 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4862 4863 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4864 4865 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4866 } 4867 4868 static int sta_add_link_station(struct ieee80211_local *local, 4869 struct ieee80211_sub_if_data *sdata, 4870 struct link_station_parameters *params) 4871 { 4872 struct sta_info *sta; 4873 int ret; 4874 4875 sta = sta_info_get_bss(sdata, params->mld_mac); 4876 if (!sta) 4877 return -ENOENT; 4878 4879 if (!sta->sta.valid_links) 4880 return -EINVAL; 4881 4882 if (sta->sta.valid_links & BIT(params->link_id)) 4883 return -EALREADY; 4884 4885 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4886 if (ret) 4887 return ret; 4888 4889 ret = sta_link_apply_parameters(local, sta, true, params); 4890 if (ret) { 4891 ieee80211_sta_free_link(sta, params->link_id); 4892 return ret; 4893 } 4894 4895 /* ieee80211_sta_activate_link frees the link upon failure */ 4896 return ieee80211_sta_activate_link(sta, params->link_id); 4897 } 4898 4899 static int 4900 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4901 struct link_station_parameters *params) 4902 { 4903 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4904 struct ieee80211_local *local = wiphy_priv(wiphy); 4905 4906 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4907 4908 return sta_add_link_station(local, sdata, params); 4909 } 4910 4911 static int sta_mod_link_station(struct ieee80211_local *local, 4912 struct ieee80211_sub_if_data *sdata, 4913 struct link_station_parameters *params) 4914 { 4915 struct sta_info *sta; 4916 4917 sta = sta_info_get_bss(sdata, params->mld_mac); 4918 if (!sta) 4919 return -ENOENT; 4920 4921 if (!(sta->sta.valid_links & BIT(params->link_id))) 4922 return -EINVAL; 4923 4924 return sta_link_apply_parameters(local, sta, false, params); 4925 } 4926 4927 static int 4928 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4929 struct link_station_parameters *params) 4930 { 4931 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4932 struct ieee80211_local *local = wiphy_priv(wiphy); 4933 4934 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4935 4936 return sta_mod_link_station(local, sdata, params); 4937 } 4938 4939 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4940 struct link_station_del_parameters *params) 4941 { 4942 struct sta_info *sta; 4943 4944 sta = sta_info_get_bss(sdata, params->mld_mac); 4945 if (!sta) 4946 return -ENOENT; 4947 4948 if (!(sta->sta.valid_links & BIT(params->link_id))) 4949 return -EINVAL; 4950 4951 /* must not create a STA without links */ 4952 if (sta->sta.valid_links == BIT(params->link_id)) 4953 return -EINVAL; 4954 4955 ieee80211_sta_remove_link(sta, params->link_id); 4956 4957 return 0; 4958 } 4959 4960 static int 4961 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4962 struct link_station_del_parameters *params) 4963 { 4964 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4965 4966 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4967 4968 return sta_del_link_station(sdata, params); 4969 } 4970 4971 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4972 struct net_device *dev, 4973 struct cfg80211_set_hw_timestamp *hwts) 4974 { 4975 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4976 struct ieee80211_local *local = sdata->local; 4977 4978 if (!local->ops->set_hw_timestamp) 4979 return -EOPNOTSUPP; 4980 4981 if (!check_sdata_in_driver(sdata)) 4982 return -EIO; 4983 4984 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 4985 } 4986 4987 static int 4988 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 4989 struct cfg80211_ttlm_params *params) 4990 { 4991 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4992 4993 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4994 4995 return ieee80211_req_neg_ttlm(sdata, params); 4996 } 4997 4998 const struct cfg80211_ops mac80211_config_ops = { 4999 .add_virtual_intf = ieee80211_add_iface, 5000 .del_virtual_intf = ieee80211_del_iface, 5001 .change_virtual_intf = ieee80211_change_iface, 5002 .start_p2p_device = ieee80211_start_p2p_device, 5003 .stop_p2p_device = ieee80211_stop_p2p_device, 5004 .add_key = ieee80211_add_key, 5005 .del_key = ieee80211_del_key, 5006 .get_key = ieee80211_get_key, 5007 .set_default_key = ieee80211_config_default_key, 5008 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5009 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5010 .start_ap = ieee80211_start_ap, 5011 .change_beacon = ieee80211_change_beacon, 5012 .stop_ap = ieee80211_stop_ap, 5013 .add_station = ieee80211_add_station, 5014 .del_station = ieee80211_del_station, 5015 .change_station = ieee80211_change_station, 5016 .get_station = ieee80211_get_station, 5017 .dump_station = ieee80211_dump_station, 5018 .dump_survey = ieee80211_dump_survey, 5019 #ifdef CONFIG_MAC80211_MESH 5020 .add_mpath = ieee80211_add_mpath, 5021 .del_mpath = ieee80211_del_mpath, 5022 .change_mpath = ieee80211_change_mpath, 5023 .get_mpath = ieee80211_get_mpath, 5024 .dump_mpath = ieee80211_dump_mpath, 5025 .get_mpp = ieee80211_get_mpp, 5026 .dump_mpp = ieee80211_dump_mpp, 5027 .update_mesh_config = ieee80211_update_mesh_config, 5028 .get_mesh_config = ieee80211_get_mesh_config, 5029 .join_mesh = ieee80211_join_mesh, 5030 .leave_mesh = ieee80211_leave_mesh, 5031 #endif 5032 .join_ocb = ieee80211_join_ocb, 5033 .leave_ocb = ieee80211_leave_ocb, 5034 .change_bss = ieee80211_change_bss, 5035 .inform_bss = ieee80211_inform_bss, 5036 .set_txq_params = ieee80211_set_txq_params, 5037 .set_monitor_channel = ieee80211_set_monitor_channel, 5038 .suspend = ieee80211_suspend, 5039 .resume = ieee80211_resume, 5040 .scan = ieee80211_scan, 5041 .abort_scan = ieee80211_abort_scan, 5042 .sched_scan_start = ieee80211_sched_scan_start, 5043 .sched_scan_stop = ieee80211_sched_scan_stop, 5044 .auth = ieee80211_auth, 5045 .assoc = ieee80211_assoc, 5046 .deauth = ieee80211_deauth, 5047 .disassoc = ieee80211_disassoc, 5048 .join_ibss = ieee80211_join_ibss, 5049 .leave_ibss = ieee80211_leave_ibss, 5050 .set_mcast_rate = ieee80211_set_mcast_rate, 5051 .set_wiphy_params = ieee80211_set_wiphy_params, 5052 .set_tx_power = ieee80211_set_tx_power, 5053 .get_tx_power = ieee80211_get_tx_power, 5054 .rfkill_poll = ieee80211_rfkill_poll, 5055 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5056 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5057 .set_power_mgmt = ieee80211_set_power_mgmt, 5058 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5059 .remain_on_channel = ieee80211_remain_on_channel, 5060 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5061 .mgmt_tx = ieee80211_mgmt_tx, 5062 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5063 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5064 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5065 .update_mgmt_frame_registrations = 5066 ieee80211_update_mgmt_frame_registrations, 5067 .set_antenna = ieee80211_set_antenna, 5068 .get_antenna = ieee80211_get_antenna, 5069 .set_rekey_data = ieee80211_set_rekey_data, 5070 .tdls_oper = ieee80211_tdls_oper, 5071 .tdls_mgmt = ieee80211_tdls_mgmt, 5072 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5073 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5074 .probe_client = ieee80211_probe_client, 5075 .set_noack_map = ieee80211_set_noack_map, 5076 #ifdef CONFIG_PM 5077 .set_wakeup = ieee80211_set_wakeup, 5078 #endif 5079 .get_channel = ieee80211_cfg_get_channel, 5080 .start_radar_detection = ieee80211_start_radar_detection, 5081 .end_cac = ieee80211_end_cac, 5082 .channel_switch = ieee80211_channel_switch, 5083 .set_qos_map = ieee80211_set_qos_map, 5084 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5085 .add_tx_ts = ieee80211_add_tx_ts, 5086 .del_tx_ts = ieee80211_del_tx_ts, 5087 .start_nan = ieee80211_start_nan, 5088 .stop_nan = ieee80211_stop_nan, 5089 .nan_change_conf = ieee80211_nan_change_conf, 5090 .add_nan_func = ieee80211_add_nan_func, 5091 .del_nan_func = ieee80211_del_nan_func, 5092 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5093 .tx_control_port = ieee80211_tx_control_port, 5094 .get_txq_stats = ieee80211_get_txq_stats, 5095 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5096 .start_pmsr = ieee80211_start_pmsr, 5097 .abort_pmsr = ieee80211_abort_pmsr, 5098 .probe_mesh_link = ieee80211_probe_mesh_link, 5099 .set_tid_config = ieee80211_set_tid_config, 5100 .reset_tid_config = ieee80211_reset_tid_config, 5101 .set_sar_specs = ieee80211_set_sar_specs, 5102 .color_change = ieee80211_color_change, 5103 .set_radar_background = ieee80211_set_radar_background, 5104 .add_intf_link = ieee80211_add_intf_link, 5105 .del_intf_link = ieee80211_del_intf_link, 5106 .add_link_station = ieee80211_add_link_station, 5107 .mod_link_station = ieee80211_mod_link_station, 5108 .del_link_station = ieee80211_del_link_station, 5109 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5110 .set_ttlm = ieee80211_set_ttlm, 5111 }; 5112