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) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 lockdep_assert_wiphy(local->hw.wiphy); 218 219 ret = ieee80211_if_change_type(sdata, type); 220 if (ret) 221 return ret; 222 223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 225 ieee80211_check_fast_rx_iface(sdata); 226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 228 229 if (params->use_4addr == ifmgd->use_4addr) 230 return 0; 231 232 /* FIXME: no support for 4-addr MLO yet */ 233 if (ieee80211_vif_is_mld(&sdata->vif)) 234 return -EOPNOTSUPP; 235 236 sdata->u.mgd.use_4addr = params->use_4addr; 237 if (!ifmgd->associated) 238 return 0; 239 240 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 241 if (sta) 242 drv_sta_set_4addr(local, sdata, &sta->sta, 243 params->use_4addr); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 lockdep_assert_wiphy(sdata->local->hw.wiphy); 265 266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 456 457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 458 ret = ieee80211_set_tx_key(key); 459 460 return ret; 461 } 462 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 464 int link_id, u8 key_idx, bool pairwise, 465 const u8 *mac_addr, struct key_params *params) 466 { 467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 468 struct ieee80211_link_data *link = 469 ieee80211_link_or_deflink(sdata, link_id, false); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta = NULL; 472 struct ieee80211_key *key; 473 int err; 474 475 lockdep_assert_wiphy(local->hw.wiphy); 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 if (mac_addr) { 514 sta = sta_info_get_bss(sdata, mac_addr); 515 /* 516 * The ASSOC test makes sure the driver is ready to 517 * receive the key. When wpa_supplicant has roamed 518 * using FT, it attempts to set the key before 519 * association has completed, this rejects that attempt 520 * so it will set the key again after association. 521 * 522 * TODO: accept the key if we have a station entry and 523 * add it to the device after the station. 524 */ 525 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 526 ieee80211_key_free_unused(key); 527 return -ENOENT; 528 } 529 } 530 531 switch (sdata->vif.type) { 532 case NL80211_IFTYPE_STATION: 533 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 534 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 535 break; 536 case NL80211_IFTYPE_AP: 537 case NL80211_IFTYPE_AP_VLAN: 538 /* Keys without a station are used for TX only */ 539 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 540 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 541 break; 542 case NL80211_IFTYPE_ADHOC: 543 /* no MFP (yet) */ 544 break; 545 case NL80211_IFTYPE_MESH_POINT: 546 #ifdef CONFIG_MAC80211_MESH 547 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 548 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 549 break; 550 #endif 551 case NL80211_IFTYPE_WDS: 552 case NL80211_IFTYPE_MONITOR: 553 case NL80211_IFTYPE_P2P_DEVICE: 554 case NL80211_IFTYPE_NAN: 555 case NL80211_IFTYPE_UNSPECIFIED: 556 case NUM_NL80211_IFTYPES: 557 case NL80211_IFTYPE_P2P_CLIENT: 558 case NL80211_IFTYPE_P2P_GO: 559 case NL80211_IFTYPE_OCB: 560 /* shouldn't happen */ 561 WARN_ON_ONCE(1); 562 break; 563 } 564 565 err = ieee80211_key_link(key, link, sta); 566 /* KRACK protection, shouldn't happen but just silently accept key */ 567 if (err == -EALREADY) 568 err = 0; 569 570 return err; 571 } 572 573 static struct ieee80211_key * 574 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 575 u8 key_idx, bool pairwise, const u8 *mac_addr) 576 { 577 struct ieee80211_local *local __maybe_unused = sdata->local; 578 struct ieee80211_link_data *link = &sdata->deflink; 579 struct ieee80211_key *key; 580 581 if (link_id >= 0) { 582 link = sdata_dereference(sdata->link[link_id], sdata); 583 if (!link) 584 return NULL; 585 } 586 587 if (mac_addr) { 588 struct sta_info *sta; 589 struct link_sta_info *link_sta; 590 591 sta = sta_info_get_bss(sdata, mac_addr); 592 if (!sta) 593 return NULL; 594 595 if (link_id >= 0) { 596 link_sta = rcu_dereference_check(sta->link[link_id], 597 lockdep_is_held(&local->hw.wiphy->mtx)); 598 if (!link_sta) 599 return NULL; 600 } else { 601 link_sta = &sta->deflink; 602 } 603 604 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 605 return wiphy_dereference(local->hw.wiphy, 606 sta->ptk[key_idx]); 607 608 if (!pairwise && 609 key_idx < NUM_DEFAULT_KEYS + 610 NUM_DEFAULT_MGMT_KEYS + 611 NUM_DEFAULT_BEACON_KEYS) 612 return wiphy_dereference(local->hw.wiphy, 613 link_sta->gtk[key_idx]); 614 615 return NULL; 616 } 617 618 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 619 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 620 621 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 622 if (key) 623 return key; 624 625 /* or maybe it was a WEP key */ 626 if (key_idx < NUM_DEFAULT_KEYS) 627 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 628 629 return NULL; 630 } 631 632 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 633 int link_id, u8 key_idx, bool pairwise, 634 const u8 *mac_addr) 635 { 636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 637 struct ieee80211_local *local = sdata->local; 638 struct ieee80211_key *key; 639 640 lockdep_assert_wiphy(local->hw.wiphy); 641 642 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 643 if (!key) 644 return -ENOENT; 645 646 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 647 648 return 0; 649 } 650 651 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 652 int link_id, u8 key_idx, bool pairwise, 653 const u8 *mac_addr, void *cookie, 654 void (*callback)(void *cookie, 655 struct key_params *params)) 656 { 657 struct ieee80211_sub_if_data *sdata; 658 u8 seq[6] = {0}; 659 struct key_params params; 660 struct ieee80211_key *key; 661 u64 pn64; 662 u32 iv32; 663 u16 iv16; 664 int err = -ENOENT; 665 struct ieee80211_key_seq kseq = {}; 666 667 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 668 669 rcu_read_lock(); 670 671 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 672 if (!key) 673 goto out; 674 675 memset(¶ms, 0, sizeof(params)); 676 677 params.cipher = key->conf.cipher; 678 679 switch (key->conf.cipher) { 680 case WLAN_CIPHER_SUITE_TKIP: 681 pn64 = atomic64_read(&key->conf.tx_pn); 682 iv32 = TKIP_PN_TO_IV32(pn64); 683 iv16 = TKIP_PN_TO_IV16(pn64); 684 685 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 686 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 687 drv_get_key_seq(sdata->local, key, &kseq); 688 iv32 = kseq.tkip.iv32; 689 iv16 = kseq.tkip.iv16; 690 } 691 692 seq[0] = iv16 & 0xff; 693 seq[1] = (iv16 >> 8) & 0xff; 694 seq[2] = iv32 & 0xff; 695 seq[3] = (iv32 >> 8) & 0xff; 696 seq[4] = (iv32 >> 16) & 0xff; 697 seq[5] = (iv32 >> 24) & 0xff; 698 params.seq = seq; 699 params.seq_len = 6; 700 break; 701 case WLAN_CIPHER_SUITE_CCMP: 702 case WLAN_CIPHER_SUITE_CCMP_256: 703 case WLAN_CIPHER_SUITE_AES_CMAC: 704 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 705 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 706 offsetof(typeof(kseq), aes_cmac)); 707 fallthrough; 708 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 709 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 710 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 711 offsetof(typeof(kseq), aes_gmac)); 712 fallthrough; 713 case WLAN_CIPHER_SUITE_GCMP: 714 case WLAN_CIPHER_SUITE_GCMP_256: 715 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 716 offsetof(typeof(kseq), gcmp)); 717 718 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 719 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 720 drv_get_key_seq(sdata->local, key, &kseq); 721 memcpy(seq, kseq.ccmp.pn, 6); 722 } else { 723 pn64 = atomic64_read(&key->conf.tx_pn); 724 seq[0] = pn64; 725 seq[1] = pn64 >> 8; 726 seq[2] = pn64 >> 16; 727 seq[3] = pn64 >> 24; 728 seq[4] = pn64 >> 32; 729 seq[5] = pn64 >> 40; 730 } 731 params.seq = seq; 732 params.seq_len = 6; 733 break; 734 default: 735 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 736 break; 737 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 738 break; 739 drv_get_key_seq(sdata->local, key, &kseq); 740 params.seq = kseq.hw.seq; 741 params.seq_len = kseq.hw.seq_len; 742 break; 743 } 744 745 params.key = key->conf.key; 746 params.key_len = key->conf.keylen; 747 748 callback(cookie, ¶ms); 749 err = 0; 750 751 out: 752 rcu_read_unlock(); 753 return err; 754 } 755 756 static int ieee80211_config_default_key(struct wiphy *wiphy, 757 struct net_device *dev, 758 int link_id, u8 key_idx, bool uni, 759 bool multi) 760 { 761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 762 struct ieee80211_link_data *link = 763 ieee80211_link_or_deflink(sdata, link_id, false); 764 765 if (IS_ERR(link)) 766 return PTR_ERR(link); 767 768 ieee80211_set_default_key(link, key_idx, uni, multi); 769 770 return 0; 771 } 772 773 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 774 struct net_device *dev, 775 int link_id, u8 key_idx) 776 { 777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 778 struct ieee80211_link_data *link = 779 ieee80211_link_or_deflink(sdata, link_id, true); 780 781 if (IS_ERR(link)) 782 return PTR_ERR(link); 783 784 ieee80211_set_default_mgmt_key(link, key_idx); 785 786 return 0; 787 } 788 789 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 790 struct net_device *dev, 791 int link_id, u8 key_idx) 792 { 793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 794 struct ieee80211_link_data *link = 795 ieee80211_link_or_deflink(sdata, link_id, true); 796 797 if (IS_ERR(link)) 798 return PTR_ERR(link); 799 800 ieee80211_set_default_beacon_key(link, key_idx); 801 802 return 0; 803 } 804 805 void sta_set_rate_info_tx(struct sta_info *sta, 806 const struct ieee80211_tx_rate *rate, 807 struct rate_info *rinfo) 808 { 809 rinfo->flags = 0; 810 if (rate->flags & IEEE80211_TX_RC_MCS) { 811 rinfo->flags |= RATE_INFO_FLAGS_MCS; 812 rinfo->mcs = rate->idx; 813 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 814 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 815 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 816 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 817 } else { 818 struct ieee80211_supported_band *sband; 819 820 sband = ieee80211_get_sband(sta->sdata); 821 WARN_ON_ONCE(sband && !sband->bitrates); 822 if (sband && sband->bitrates) 823 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 824 } 825 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 826 rinfo->bw = RATE_INFO_BW_40; 827 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 828 rinfo->bw = RATE_INFO_BW_80; 829 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 830 rinfo->bw = RATE_INFO_BW_160; 831 else 832 rinfo->bw = RATE_INFO_BW_20; 833 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 834 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 835 } 836 837 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 838 int idx, u8 *mac, struct station_info *sinfo) 839 { 840 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 841 struct ieee80211_local *local = sdata->local; 842 struct sta_info *sta; 843 int ret = -ENOENT; 844 845 lockdep_assert_wiphy(local->hw.wiphy); 846 847 sta = sta_info_get_by_idx(sdata, idx); 848 if (sta) { 849 ret = 0; 850 memcpy(mac, sta->sta.addr, ETH_ALEN); 851 sta_set_sinfo(sta, sinfo, true); 852 } 853 854 return ret; 855 } 856 857 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 858 int idx, struct survey_info *survey) 859 { 860 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 861 862 return drv_get_survey(local, idx, survey); 863 } 864 865 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 866 const u8 *mac, struct station_info *sinfo) 867 { 868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 869 struct ieee80211_local *local = sdata->local; 870 struct sta_info *sta; 871 int ret = -ENOENT; 872 873 lockdep_assert_wiphy(local->hw.wiphy); 874 875 sta = sta_info_get_bss(sdata, mac); 876 if (sta) { 877 ret = 0; 878 sta_set_sinfo(sta, sinfo, true); 879 } 880 881 return ret; 882 } 883 884 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 885 struct cfg80211_chan_def *chandef) 886 { 887 struct ieee80211_local *local = wiphy_priv(wiphy); 888 struct ieee80211_sub_if_data *sdata; 889 int ret = 0; 890 891 lockdep_assert_wiphy(local->hw.wiphy); 892 893 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 894 return 0; 895 896 if (local->use_chanctx) { 897 sdata = wiphy_dereference(local->hw.wiphy, 898 local->monitor_sdata); 899 if (sdata) { 900 ieee80211_link_release_channel(&sdata->deflink); 901 ret = ieee80211_link_use_channel(&sdata->deflink, 902 chandef, 903 IEEE80211_CHANCTX_EXCLUSIVE); 904 } 905 } else { 906 if (local->open_count == local->monitors) { 907 local->_oper_chandef = *chandef; 908 ieee80211_hw_config(local, 0); 909 } 910 } 911 912 if (ret == 0) 913 local->monitor_chandef = *chandef; 914 915 return ret; 916 } 917 918 static int 919 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 920 const u8 *resp, size_t resp_len, 921 const struct ieee80211_csa_settings *csa, 922 const struct ieee80211_color_change_settings *cca, 923 struct ieee80211_link_data *link) 924 { 925 struct probe_resp *new, *old; 926 927 if (!resp || !resp_len) 928 return 1; 929 930 old = sdata_dereference(link->u.ap.probe_resp, sdata); 931 932 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 933 if (!new) 934 return -ENOMEM; 935 936 new->len = resp_len; 937 memcpy(new->data, resp, resp_len); 938 939 if (csa) 940 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 941 csa->n_counter_offsets_presp * 942 sizeof(new->cntdwn_counter_offsets[0])); 943 else if (cca) 944 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 945 946 rcu_assign_pointer(link->u.ap.probe_resp, new); 947 if (old) 948 kfree_rcu(old, rcu_head); 949 950 return 0; 951 } 952 953 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 954 struct cfg80211_fils_discovery *params, 955 struct ieee80211_link_data *link, 956 struct ieee80211_bss_conf *link_conf) 957 { 958 struct fils_discovery_data *new, *old = NULL; 959 struct ieee80211_fils_discovery *fd; 960 961 if (!params->update) 962 return 0; 963 964 fd = &link_conf->fils_discovery; 965 fd->min_interval = params->min_interval; 966 fd->max_interval = params->max_interval; 967 968 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 969 if (old) 970 kfree_rcu(old, rcu_head); 971 972 if (params->tmpl && params->tmpl_len) { 973 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 974 if (!new) 975 return -ENOMEM; 976 new->len = params->tmpl_len; 977 memcpy(new->data, params->tmpl, params->tmpl_len); 978 rcu_assign_pointer(link->u.ap.fils_discovery, new); 979 } else { 980 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 981 } 982 983 return BSS_CHANGED_FILS_DISCOVERY; 984 } 985 986 static int 987 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 988 struct cfg80211_unsol_bcast_probe_resp *params, 989 struct ieee80211_link_data *link, 990 struct ieee80211_bss_conf *link_conf) 991 { 992 struct unsol_bcast_probe_resp_data *new, *old = NULL; 993 994 if (!params->update) 995 return 0; 996 997 link_conf->unsol_bcast_probe_resp_interval = params->interval; 998 999 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1000 if (old) 1001 kfree_rcu(old, rcu_head); 1002 1003 if (params->tmpl && params->tmpl_len) { 1004 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1005 if (!new) 1006 return -ENOMEM; 1007 new->len = params->tmpl_len; 1008 memcpy(new->data, params->tmpl, params->tmpl_len); 1009 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1010 } else { 1011 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1012 } 1013 1014 return BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1015 } 1016 1017 static int ieee80211_set_ftm_responder_params( 1018 struct ieee80211_sub_if_data *sdata, 1019 const u8 *lci, size_t lci_len, 1020 const u8 *civicloc, size_t civicloc_len, 1021 struct ieee80211_bss_conf *link_conf) 1022 { 1023 struct ieee80211_ftm_responder_params *new, *old; 1024 u8 *pos; 1025 int len; 1026 1027 if (!lci_len && !civicloc_len) 1028 return 0; 1029 1030 old = link_conf->ftmr_params; 1031 len = lci_len + civicloc_len; 1032 1033 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1034 if (!new) 1035 return -ENOMEM; 1036 1037 pos = (u8 *)(new + 1); 1038 if (lci_len) { 1039 new->lci_len = lci_len; 1040 new->lci = pos; 1041 memcpy(pos, lci, lci_len); 1042 pos += lci_len; 1043 } 1044 1045 if (civicloc_len) { 1046 new->civicloc_len = civicloc_len; 1047 new->civicloc = pos; 1048 memcpy(pos, civicloc, civicloc_len); 1049 pos += civicloc_len; 1050 } 1051 1052 link_conf->ftmr_params = new; 1053 kfree(old); 1054 1055 return 0; 1056 } 1057 1058 static int 1059 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1060 struct cfg80211_mbssid_elems *src) 1061 { 1062 int i, offset = 0; 1063 1064 for (i = 0; i < src->cnt; i++) { 1065 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1066 dst->elem[i].len = src->elem[i].len; 1067 dst->elem[i].data = pos + offset; 1068 offset += dst->elem[i].len; 1069 } 1070 dst->cnt = src->cnt; 1071 1072 return offset; 1073 } 1074 1075 static int 1076 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1077 struct cfg80211_rnr_elems *src) 1078 { 1079 int i, offset = 0; 1080 1081 for (i = 0; i < src->cnt; i++) { 1082 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1083 dst->elem[i].len = src->elem[i].len; 1084 dst->elem[i].data = pos + offset; 1085 offset += dst->elem[i].len; 1086 } 1087 dst->cnt = src->cnt; 1088 1089 return offset; 1090 } 1091 1092 static int 1093 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1094 struct ieee80211_link_data *link, 1095 struct cfg80211_beacon_data *params, 1096 const struct ieee80211_csa_settings *csa, 1097 const struct ieee80211_color_change_settings *cca, 1098 u64 *changed) 1099 { 1100 struct cfg80211_mbssid_elems *mbssid = NULL; 1101 struct cfg80211_rnr_elems *rnr = NULL; 1102 struct beacon_data *new, *old; 1103 int new_head_len, new_tail_len; 1104 int size, err; 1105 u64 _changed = BSS_CHANGED_BEACON; 1106 struct ieee80211_bss_conf *link_conf = link->conf; 1107 1108 old = sdata_dereference(link->u.ap.beacon, sdata); 1109 1110 /* Need to have a beacon head if we don't have one yet */ 1111 if (!params->head && !old) 1112 return -EINVAL; 1113 1114 /* new or old head? */ 1115 if (params->head) 1116 new_head_len = params->head_len; 1117 else 1118 new_head_len = old->head_len; 1119 1120 /* new or old tail? */ 1121 if (params->tail || !old) 1122 /* params->tail_len will be zero for !params->tail */ 1123 new_tail_len = params->tail_len; 1124 else 1125 new_tail_len = old->tail_len; 1126 1127 size = sizeof(*new) + new_head_len + new_tail_len; 1128 1129 /* new or old multiple BSSID elements? */ 1130 if (params->mbssid_ies) { 1131 mbssid = params->mbssid_ies; 1132 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1133 if (params->rnr_ies) { 1134 rnr = params->rnr_ies; 1135 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1136 } 1137 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1138 mbssid->cnt); 1139 } else if (old && old->mbssid_ies) { 1140 mbssid = old->mbssid_ies; 1141 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1142 if (old && old->rnr_ies) { 1143 rnr = old->rnr_ies; 1144 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1145 } 1146 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1147 mbssid->cnt); 1148 } 1149 1150 new = kzalloc(size, GFP_KERNEL); 1151 if (!new) 1152 return -ENOMEM; 1153 1154 /* start filling the new info now */ 1155 1156 /* 1157 * pointers go into the block we allocated, 1158 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1159 */ 1160 new->head = ((u8 *) new) + sizeof(*new); 1161 new->tail = new->head + new_head_len; 1162 new->head_len = new_head_len; 1163 new->tail_len = new_tail_len; 1164 /* copy in optional mbssid_ies */ 1165 if (mbssid) { 1166 u8 *pos = new->tail + new->tail_len; 1167 1168 new->mbssid_ies = (void *)pos; 1169 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1170 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1171 mbssid); 1172 if (rnr) { 1173 new->rnr_ies = (void *)pos; 1174 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1175 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1176 } 1177 /* update bssid_indicator */ 1178 link_conf->bssid_indicator = 1179 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1180 } 1181 1182 if (csa) { 1183 new->cntdwn_current_counter = csa->count; 1184 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1185 csa->n_counter_offsets_beacon * 1186 sizeof(new->cntdwn_counter_offsets[0])); 1187 } else if (cca) { 1188 new->cntdwn_current_counter = cca->count; 1189 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1190 } 1191 1192 /* copy in head */ 1193 if (params->head) 1194 memcpy(new->head, params->head, new_head_len); 1195 else 1196 memcpy(new->head, old->head, new_head_len); 1197 1198 /* copy in optional tail */ 1199 if (params->tail) 1200 memcpy(new->tail, params->tail, new_tail_len); 1201 else 1202 if (old) 1203 memcpy(new->tail, old->tail, new_tail_len); 1204 1205 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1206 params->probe_resp_len, csa, cca, link); 1207 if (err < 0) { 1208 kfree(new); 1209 return err; 1210 } 1211 if (err == 0) 1212 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1213 1214 if (params->ftm_responder != -1) { 1215 link_conf->ftm_responder = params->ftm_responder; 1216 err = ieee80211_set_ftm_responder_params(sdata, 1217 params->lci, 1218 params->lci_len, 1219 params->civicloc, 1220 params->civicloc_len, 1221 link_conf); 1222 1223 if (err < 0) { 1224 kfree(new); 1225 return err; 1226 } 1227 1228 _changed |= BSS_CHANGED_FTM_RESPONDER; 1229 } 1230 1231 rcu_assign_pointer(link->u.ap.beacon, new); 1232 sdata->u.ap.active = true; 1233 1234 if (old) 1235 kfree_rcu(old, rcu_head); 1236 1237 *changed |= _changed; 1238 return 0; 1239 } 1240 1241 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1242 struct cfg80211_ap_settings *params) 1243 { 1244 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1245 struct ieee80211_local *local = sdata->local; 1246 struct beacon_data *old; 1247 struct ieee80211_sub_if_data *vlan; 1248 u64 changed = BSS_CHANGED_BEACON_INT | 1249 BSS_CHANGED_BEACON_ENABLED | 1250 BSS_CHANGED_BEACON | 1251 BSS_CHANGED_P2P_PS | 1252 BSS_CHANGED_TXPOWER | 1253 BSS_CHANGED_TWT; 1254 int i, err; 1255 int prev_beacon_int; 1256 unsigned int link_id = params->beacon.link_id; 1257 struct ieee80211_link_data *link; 1258 struct ieee80211_bss_conf *link_conf; 1259 1260 lockdep_assert_wiphy(local->hw.wiphy); 1261 1262 link = sdata_dereference(sdata->link[link_id], sdata); 1263 if (!link) 1264 return -ENOLINK; 1265 1266 link_conf = link->conf; 1267 1268 old = sdata_dereference(link->u.ap.beacon, sdata); 1269 if (old) 1270 return -EALREADY; 1271 1272 if (params->smps_mode != NL80211_SMPS_OFF) 1273 return -EOPNOTSUPP; 1274 1275 link->smps_mode = IEEE80211_SMPS_OFF; 1276 1277 link->needed_rx_chains = sdata->local->rx_chains; 1278 1279 prev_beacon_int = link_conf->beacon_int; 1280 link_conf->beacon_int = params->beacon_interval; 1281 1282 if (params->ht_cap) 1283 link_conf->ht_ldpc = 1284 params->ht_cap->cap_info & 1285 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1286 1287 if (params->vht_cap) { 1288 link_conf->vht_ldpc = 1289 params->vht_cap->vht_cap_info & 1290 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1291 link_conf->vht_su_beamformer = 1292 params->vht_cap->vht_cap_info & 1293 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1294 link_conf->vht_su_beamformee = 1295 params->vht_cap->vht_cap_info & 1296 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1297 link_conf->vht_mu_beamformer = 1298 params->vht_cap->vht_cap_info & 1299 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1300 link_conf->vht_mu_beamformee = 1301 params->vht_cap->vht_cap_info & 1302 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1303 } 1304 1305 if (params->he_cap && params->he_oper) { 1306 link_conf->he_support = true; 1307 link_conf->htc_trig_based_pkt_ext = 1308 le32_get_bits(params->he_oper->he_oper_params, 1309 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1310 link_conf->frame_time_rts_th = 1311 le32_get_bits(params->he_oper->he_oper_params, 1312 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1313 changed |= BSS_CHANGED_HE_OBSS_PD; 1314 1315 if (params->beacon.he_bss_color.enabled) 1316 changed |= BSS_CHANGED_HE_BSS_COLOR; 1317 } 1318 1319 if (params->he_cap) { 1320 link_conf->he_ldpc = 1321 params->he_cap->phy_cap_info[1] & 1322 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1323 link_conf->he_su_beamformer = 1324 params->he_cap->phy_cap_info[3] & 1325 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1326 link_conf->he_su_beamformee = 1327 params->he_cap->phy_cap_info[4] & 1328 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1329 link_conf->he_mu_beamformer = 1330 params->he_cap->phy_cap_info[4] & 1331 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1332 link_conf->he_full_ul_mumimo = 1333 params->he_cap->phy_cap_info[2] & 1334 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1335 } 1336 1337 if (params->eht_cap) { 1338 if (!link_conf->he_support) 1339 return -EOPNOTSUPP; 1340 1341 link_conf->eht_support = true; 1342 link_conf->eht_puncturing = params->punct_bitmap; 1343 changed |= BSS_CHANGED_EHT_PUNCTURING; 1344 1345 link_conf->eht_su_beamformer = 1346 params->eht_cap->fixed.phy_cap_info[0] & 1347 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1348 link_conf->eht_su_beamformee = 1349 params->eht_cap->fixed.phy_cap_info[0] & 1350 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1351 link_conf->eht_mu_beamformer = 1352 params->eht_cap->fixed.phy_cap_info[7] & 1353 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1354 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1355 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1356 } else { 1357 link_conf->eht_su_beamformer = false; 1358 link_conf->eht_su_beamformee = false; 1359 link_conf->eht_mu_beamformer = false; 1360 } 1361 1362 if (sdata->vif.type == NL80211_IFTYPE_AP && 1363 params->mbssid_config.tx_wdev) { 1364 err = ieee80211_set_ap_mbssid_options(sdata, 1365 params->mbssid_config, 1366 link_conf); 1367 if (err) 1368 return err; 1369 } 1370 1371 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1372 IEEE80211_CHANCTX_SHARED); 1373 if (!err) 1374 ieee80211_link_copy_chanctx_to_vlans(link, false); 1375 if (err) { 1376 link_conf->beacon_int = prev_beacon_int; 1377 return err; 1378 } 1379 1380 /* 1381 * Apply control port protocol, this allows us to 1382 * not encrypt dynamic WEP control frames. 1383 */ 1384 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1385 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1386 sdata->control_port_over_nl80211 = 1387 params->crypto.control_port_over_nl80211; 1388 sdata->control_port_no_preauth = 1389 params->crypto.control_port_no_preauth; 1390 1391 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1392 vlan->control_port_protocol = 1393 params->crypto.control_port_ethertype; 1394 vlan->control_port_no_encrypt = 1395 params->crypto.control_port_no_encrypt; 1396 vlan->control_port_over_nl80211 = 1397 params->crypto.control_port_over_nl80211; 1398 vlan->control_port_no_preauth = 1399 params->crypto.control_port_no_preauth; 1400 } 1401 1402 link_conf->dtim_period = params->dtim_period; 1403 link_conf->enable_beacon = true; 1404 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1405 link_conf->twt_responder = params->twt_responder; 1406 link_conf->he_obss_pd = params->he_obss_pd; 1407 link_conf->he_bss_color = params->beacon.he_bss_color; 1408 sdata->vif.cfg.s1g = params->chandef.chan->band == 1409 NL80211_BAND_S1GHZ; 1410 1411 sdata->vif.cfg.ssid_len = params->ssid_len; 1412 if (params->ssid_len) 1413 memcpy(sdata->vif.cfg.ssid, params->ssid, 1414 params->ssid_len); 1415 link_conf->hidden_ssid = 1416 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1417 1418 memset(&link_conf->p2p_noa_attr, 0, 1419 sizeof(link_conf->p2p_noa_attr)); 1420 link_conf->p2p_noa_attr.oppps_ctwindow = 1421 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1422 if (params->p2p_opp_ps) 1423 link_conf->p2p_noa_attr.oppps_ctwindow |= 1424 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1425 1426 sdata->beacon_rate_set = false; 1427 if (wiphy_ext_feature_isset(local->hw.wiphy, 1428 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1429 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1430 sdata->beacon_rateidx_mask[i] = 1431 params->beacon_rate.control[i].legacy; 1432 if (sdata->beacon_rateidx_mask[i]) 1433 sdata->beacon_rate_set = true; 1434 } 1435 } 1436 1437 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1438 link_conf->beacon_tx_rate = params->beacon_rate; 1439 1440 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1441 &changed); 1442 if (err < 0) 1443 goto error; 1444 1445 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1446 link, link_conf); 1447 if (err < 0) 1448 goto error; 1449 changed |= err; 1450 1451 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1452 ¶ms->unsol_bcast_probe_resp, 1453 link, link_conf); 1454 if (err < 0) 1455 goto error; 1456 changed |= err; 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); 1522 if (err < 0) 1523 return err; 1524 changed |= err; 1525 1526 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1527 ¶ms->unsol_bcast_probe_resp, 1528 link, link_conf); 1529 if (err < 0) 1530 return err; 1531 changed |= err; 1532 1533 if (beacon->he_bss_color_valid && 1534 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1535 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1536 changed |= BSS_CHANGED_HE_BSS_COLOR; 1537 } 1538 1539 ieee80211_link_info_change_notify(sdata, link, changed); 1540 return 0; 1541 } 1542 1543 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1544 { 1545 if (!link->u.ap.next_beacon) 1546 return; 1547 1548 kfree(link->u.ap.next_beacon->mbssid_ies); 1549 kfree(link->u.ap.next_beacon->rnr_ies); 1550 kfree(link->u.ap.next_beacon); 1551 link->u.ap.next_beacon = NULL; 1552 } 1553 1554 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1555 unsigned int link_id) 1556 { 1557 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1558 struct ieee80211_sub_if_data *vlan; 1559 struct ieee80211_local *local = sdata->local; 1560 struct beacon_data *old_beacon; 1561 struct probe_resp *old_probe_resp; 1562 struct fils_discovery_data *old_fils_discovery; 1563 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1564 struct cfg80211_chan_def chandef; 1565 struct ieee80211_link_data *link = 1566 sdata_dereference(sdata->link[link_id], sdata); 1567 struct ieee80211_bss_conf *link_conf = link->conf; 1568 1569 lockdep_assert_wiphy(local->hw.wiphy); 1570 1571 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1572 if (!old_beacon) 1573 return -ENOENT; 1574 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1575 sdata); 1576 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1577 sdata); 1578 old_unsol_bcast_probe_resp = 1579 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1580 sdata); 1581 1582 /* abort any running channel switch or color change */ 1583 link_conf->csa_active = false; 1584 link_conf->color_change_active = false; 1585 if (link->csa_block_tx) { 1586 ieee80211_wake_vif_queues(local, sdata, 1587 IEEE80211_QUEUE_STOP_REASON_CSA); 1588 link->csa_block_tx = false; 1589 } 1590 1591 ieee80211_free_next_beacon(link); 1592 1593 /* turn off carrier for this interface and dependent VLANs */ 1594 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1595 netif_carrier_off(vlan->dev); 1596 netif_carrier_off(dev); 1597 1598 /* remove beacon and probe response */ 1599 sdata->u.ap.active = false; 1600 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1601 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1602 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1603 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1604 kfree_rcu(old_beacon, rcu_head); 1605 if (old_probe_resp) 1606 kfree_rcu(old_probe_resp, rcu_head); 1607 if (old_fils_discovery) 1608 kfree_rcu(old_fils_discovery, rcu_head); 1609 if (old_unsol_bcast_probe_resp) 1610 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1611 1612 kfree(link_conf->ftmr_params); 1613 link_conf->ftmr_params = NULL; 1614 1615 sdata->vif.mbssid_tx_vif = NULL; 1616 link_conf->bssid_index = 0; 1617 link_conf->nontransmitted = false; 1618 link_conf->ema_ap = false; 1619 link_conf->bssid_indicator = 0; 1620 1621 __sta_info_flush(sdata, true); 1622 ieee80211_free_keys(sdata, true); 1623 1624 link_conf->enable_beacon = false; 1625 sdata->beacon_rate_set = false; 1626 sdata->vif.cfg.ssid_len = 0; 1627 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1628 ieee80211_link_info_change_notify(sdata, link, 1629 BSS_CHANGED_BEACON_ENABLED); 1630 1631 if (sdata->wdev.cac_started) { 1632 chandef = link_conf->chandef; 1633 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1634 cfg80211_cac_event(sdata->dev, &chandef, 1635 NL80211_RADAR_CAC_ABORTED, 1636 GFP_KERNEL); 1637 } 1638 1639 drv_stop_ap(sdata->local, sdata, link_conf); 1640 1641 /* free all potentially still buffered bcast frames */ 1642 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1643 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1644 1645 ieee80211_link_copy_chanctx_to_vlans(link, true); 1646 ieee80211_link_release_channel(link); 1647 1648 return 0; 1649 } 1650 1651 static int sta_apply_auth_flags(struct ieee80211_local *local, 1652 struct sta_info *sta, 1653 u32 mask, u32 set) 1654 { 1655 int ret; 1656 1657 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1658 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1659 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1660 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1661 if (ret) 1662 return ret; 1663 } 1664 1665 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1666 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1667 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1668 /* 1669 * When peer becomes associated, init rate control as 1670 * well. Some drivers require rate control initialized 1671 * before drv_sta_state() is called. 1672 */ 1673 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1674 rate_control_rate_init(sta); 1675 1676 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1677 if (ret) 1678 return ret; 1679 } 1680 1681 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1682 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1683 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1684 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1685 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1686 else 1687 ret = 0; 1688 if (ret) 1689 return ret; 1690 } 1691 1692 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1693 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1694 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1695 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1696 if (ret) 1697 return ret; 1698 } 1699 1700 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1701 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1702 test_sta_flag(sta, WLAN_STA_AUTH)) { 1703 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1704 if (ret) 1705 return ret; 1706 } 1707 1708 return 0; 1709 } 1710 1711 static void sta_apply_mesh_params(struct ieee80211_local *local, 1712 struct sta_info *sta, 1713 struct station_parameters *params) 1714 { 1715 #ifdef CONFIG_MAC80211_MESH 1716 struct ieee80211_sub_if_data *sdata = sta->sdata; 1717 u64 changed = 0; 1718 1719 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1720 switch (params->plink_state) { 1721 case NL80211_PLINK_ESTAB: 1722 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1723 changed = mesh_plink_inc_estab_count(sdata); 1724 sta->mesh->plink_state = params->plink_state; 1725 sta->mesh->aid = params->peer_aid; 1726 1727 ieee80211_mps_sta_status_update(sta); 1728 changed |= ieee80211_mps_set_sta_local_pm(sta, 1729 sdata->u.mesh.mshcfg.power_mode); 1730 1731 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1732 /* init at low value */ 1733 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1734 1735 break; 1736 case NL80211_PLINK_LISTEN: 1737 case NL80211_PLINK_BLOCKED: 1738 case NL80211_PLINK_OPN_SNT: 1739 case NL80211_PLINK_OPN_RCVD: 1740 case NL80211_PLINK_CNF_RCVD: 1741 case NL80211_PLINK_HOLDING: 1742 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1743 changed = mesh_plink_dec_estab_count(sdata); 1744 sta->mesh->plink_state = params->plink_state; 1745 1746 ieee80211_mps_sta_status_update(sta); 1747 changed |= ieee80211_mps_set_sta_local_pm(sta, 1748 NL80211_MESH_POWER_UNKNOWN); 1749 break; 1750 default: 1751 /* nothing */ 1752 break; 1753 } 1754 } 1755 1756 switch (params->plink_action) { 1757 case NL80211_PLINK_ACTION_NO_ACTION: 1758 /* nothing */ 1759 break; 1760 case NL80211_PLINK_ACTION_OPEN: 1761 changed |= mesh_plink_open(sta); 1762 break; 1763 case NL80211_PLINK_ACTION_BLOCK: 1764 changed |= mesh_plink_block(sta); 1765 break; 1766 } 1767 1768 if (params->local_pm) 1769 changed |= ieee80211_mps_set_sta_local_pm(sta, 1770 params->local_pm); 1771 1772 ieee80211_mbss_info_change_notify(sdata, changed); 1773 #endif 1774 } 1775 1776 static int sta_link_apply_parameters(struct ieee80211_local *local, 1777 struct sta_info *sta, bool new_link, 1778 struct link_station_parameters *params) 1779 { 1780 int ret = 0; 1781 struct ieee80211_supported_band *sband; 1782 struct ieee80211_sub_if_data *sdata = sta->sdata; 1783 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1784 struct ieee80211_link_data *link = 1785 sdata_dereference(sdata->link[link_id], sdata); 1786 struct link_sta_info *link_sta = 1787 rcu_dereference_protected(sta->link[link_id], 1788 lockdep_is_held(&local->hw.wiphy->mtx)); 1789 1790 /* 1791 * If there are no changes, then accept a link that exist, 1792 * unless it's a new link. 1793 */ 1794 if (params->link_id >= 0 && !new_link && 1795 !params->link_mac && !params->txpwr_set && 1796 !params->supported_rates_len && 1797 !params->ht_capa && !params->vht_capa && 1798 !params->he_capa && !params->eht_capa && 1799 !params->opmode_notif_used) 1800 return 0; 1801 1802 if (!link || !link_sta) 1803 return -EINVAL; 1804 1805 sband = ieee80211_get_link_sband(link); 1806 if (!sband) 1807 return -EINVAL; 1808 1809 if (params->link_mac) { 1810 if (new_link) { 1811 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1812 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1813 } else if (!ether_addr_equal(link_sta->addr, 1814 params->link_mac)) { 1815 return -EINVAL; 1816 } 1817 } else if (new_link) { 1818 return -EINVAL; 1819 } 1820 1821 if (params->txpwr_set) { 1822 link_sta->pub->txpwr.type = params->txpwr.type; 1823 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1824 link_sta->pub->txpwr.power = params->txpwr.power; 1825 ret = drv_sta_set_txpwr(local, sdata, sta); 1826 if (ret) 1827 return ret; 1828 } 1829 1830 if (params->supported_rates && 1831 params->supported_rates_len) { 1832 ieee80211_parse_bitrates(link->conf->chandef.width, 1833 sband, params->supported_rates, 1834 params->supported_rates_len, 1835 &link_sta->pub->supp_rates[sband->band]); 1836 } 1837 1838 if (params->ht_capa) 1839 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1840 params->ht_capa, link_sta); 1841 1842 /* VHT can override some HT caps such as the A-MSDU max length */ 1843 if (params->vht_capa) 1844 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1845 params->vht_capa, NULL, 1846 link_sta); 1847 1848 if (params->he_capa) 1849 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1850 (void *)params->he_capa, 1851 params->he_capa_len, 1852 (void *)params->he_6ghz_capa, 1853 link_sta); 1854 1855 if (params->he_capa && params->eht_capa) 1856 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1857 (u8 *)params->he_capa, 1858 params->he_capa_len, 1859 params->eht_capa, 1860 params->eht_capa_len, 1861 link_sta); 1862 1863 if (params->opmode_notif_used) { 1864 /* returned value is only needed for rc update, but the 1865 * rc isn't initialized here yet, so ignore it 1866 */ 1867 __ieee80211_vht_handle_opmode(sdata, link_sta, 1868 params->opmode_notif, 1869 sband->band); 1870 } 1871 1872 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 /* mark TDLS channel switch support, if the AP allows it */ 1946 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1947 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1948 params->ext_capab_len >= 4 && 1949 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1950 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1951 1952 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1953 !sdata->u.mgd.tdls_wider_bw_prohibited && 1954 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1955 params->ext_capab_len >= 8 && 1956 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1957 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1958 1959 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1960 sta->sta.uapsd_queues = params->uapsd_queues; 1961 sta->sta.max_sp = params->max_sp; 1962 } 1963 1964 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1965 params->ext_capab_len); 1966 1967 /* 1968 * cfg80211 validates this (1-2007) and allows setting the AID 1969 * only when creating a new station entry 1970 */ 1971 if (params->aid) 1972 sta->sta.aid = params->aid; 1973 1974 /* 1975 * Some of the following updates would be racy if called on an 1976 * existing station, via ieee80211_change_station(). However, 1977 * all such changes are rejected by cfg80211 except for updates 1978 * changing the supported rates on an existing but not yet used 1979 * TDLS peer. 1980 */ 1981 1982 if (params->listen_interval >= 0) 1983 sta->listen_interval = params->listen_interval; 1984 1985 ret = sta_link_apply_parameters(local, sta, false, 1986 ¶ms->link_sta_params); 1987 if (ret) 1988 return ret; 1989 1990 if (params->support_p2p_ps >= 0) 1991 sta->sta.support_p2p_ps = params->support_p2p_ps; 1992 1993 if (ieee80211_vif_is_mesh(&sdata->vif)) 1994 sta_apply_mesh_params(local, sta, params); 1995 1996 if (params->airtime_weight) 1997 sta->airtime_weight = params->airtime_weight; 1998 1999 /* set the STA state after all sta info from usermode has been set */ 2000 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2001 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2002 ret = sta_apply_auth_flags(local, sta, mask, set); 2003 if (ret) 2004 return ret; 2005 } 2006 2007 /* Mark the STA as MLO if MLD MAC address is available */ 2008 if (params->link_sta_params.mld_mac) 2009 sta->sta.mlo = true; 2010 2011 return 0; 2012 } 2013 2014 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2015 const u8 *mac, 2016 struct station_parameters *params) 2017 { 2018 struct ieee80211_local *local = wiphy_priv(wiphy); 2019 struct sta_info *sta; 2020 struct ieee80211_sub_if_data *sdata; 2021 int err; 2022 2023 lockdep_assert_wiphy(local->hw.wiphy); 2024 2025 if (params->vlan) { 2026 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2027 2028 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2029 sdata->vif.type != NL80211_IFTYPE_AP) 2030 return -EINVAL; 2031 } else 2032 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2033 2034 if (ether_addr_equal(mac, sdata->vif.addr)) 2035 return -EINVAL; 2036 2037 if (!is_valid_ether_addr(mac)) 2038 return -EINVAL; 2039 2040 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2041 sdata->vif.type == NL80211_IFTYPE_STATION && 2042 !sdata->u.mgd.associated) 2043 return -EINVAL; 2044 2045 /* 2046 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2047 * but we need to have a link_mac in that case as well, so use the 2048 * STA's MAC address in that case. 2049 */ 2050 if (params->link_sta_params.link_id >= 0) 2051 sta = sta_info_alloc_with_link(sdata, mac, 2052 params->link_sta_params.link_id, 2053 params->link_sta_params.link_mac ?: mac, 2054 GFP_KERNEL); 2055 else 2056 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2057 2058 if (!sta) 2059 return -ENOMEM; 2060 2061 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2062 sta->sta.tdls = true; 2063 2064 /* Though the mutex is not needed here (since the station is not 2065 * visible yet), sta_apply_parameters (and inner functions) require 2066 * the mutex due to other paths. 2067 */ 2068 err = sta_apply_parameters(local, sta, params); 2069 if (err) { 2070 sta_info_free(local, sta); 2071 return err; 2072 } 2073 2074 /* 2075 * for TDLS and for unassociated station, rate control should be 2076 * initialized only when rates are known and station is marked 2077 * authorized/associated 2078 */ 2079 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2080 test_sta_flag(sta, WLAN_STA_ASSOC)) 2081 rate_control_rate_init(sta); 2082 2083 return sta_info_insert(sta); 2084 } 2085 2086 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2087 struct station_del_parameters *params) 2088 { 2089 struct ieee80211_sub_if_data *sdata; 2090 2091 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2092 2093 if (params->mac) 2094 return sta_info_destroy_addr_bss(sdata, params->mac); 2095 2096 sta_info_flush(sdata); 2097 return 0; 2098 } 2099 2100 static int ieee80211_change_station(struct wiphy *wiphy, 2101 struct net_device *dev, const u8 *mac, 2102 struct station_parameters *params) 2103 { 2104 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2105 struct ieee80211_local *local = wiphy_priv(wiphy); 2106 struct sta_info *sta; 2107 struct ieee80211_sub_if_data *vlansdata; 2108 enum cfg80211_station_type statype; 2109 int err; 2110 2111 lockdep_assert_wiphy(local->hw.wiphy); 2112 2113 sta = sta_info_get_bss(sdata, mac); 2114 if (!sta) 2115 return -ENOENT; 2116 2117 switch (sdata->vif.type) { 2118 case NL80211_IFTYPE_MESH_POINT: 2119 if (sdata->u.mesh.user_mpm) 2120 statype = CFG80211_STA_MESH_PEER_USER; 2121 else 2122 statype = CFG80211_STA_MESH_PEER_KERNEL; 2123 break; 2124 case NL80211_IFTYPE_ADHOC: 2125 statype = CFG80211_STA_IBSS; 2126 break; 2127 case NL80211_IFTYPE_STATION: 2128 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2129 statype = CFG80211_STA_AP_STA; 2130 break; 2131 } 2132 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2133 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2134 else 2135 statype = CFG80211_STA_TDLS_PEER_SETUP; 2136 break; 2137 case NL80211_IFTYPE_AP: 2138 case NL80211_IFTYPE_AP_VLAN: 2139 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2140 statype = CFG80211_STA_AP_CLIENT; 2141 else 2142 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2143 break; 2144 default: 2145 return -EOPNOTSUPP; 2146 } 2147 2148 err = cfg80211_check_station_change(wiphy, params, statype); 2149 if (err) 2150 return err; 2151 2152 if (params->vlan && params->vlan != sta->sdata->dev) { 2153 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2154 2155 if (params->vlan->ieee80211_ptr->use_4addr) { 2156 if (vlansdata->u.vlan.sta) 2157 return -EBUSY; 2158 2159 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2160 __ieee80211_check_fast_rx_iface(vlansdata); 2161 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2162 } 2163 2164 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2165 sta->sdata->u.vlan.sta) { 2166 ieee80211_clear_fast_rx(sta); 2167 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2168 } 2169 2170 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2171 ieee80211_vif_dec_num_mcast(sta->sdata); 2172 2173 sta->sdata = vlansdata; 2174 ieee80211_check_fast_xmit(sta); 2175 2176 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2177 ieee80211_vif_inc_num_mcast(sta->sdata); 2178 cfg80211_send_layer2_update(sta->sdata->dev, 2179 sta->sta.addr); 2180 } 2181 } 2182 2183 err = sta_apply_parameters(local, sta, params); 2184 if (err) 2185 return err; 2186 2187 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2188 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2189 ieee80211_recalc_ps(local); 2190 ieee80211_recalc_ps_vif(sdata); 2191 } 2192 2193 return 0; 2194 } 2195 2196 #ifdef CONFIG_MAC80211_MESH 2197 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2198 const u8 *dst, const u8 *next_hop) 2199 { 2200 struct ieee80211_sub_if_data *sdata; 2201 struct mesh_path *mpath; 2202 struct sta_info *sta; 2203 2204 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2205 2206 rcu_read_lock(); 2207 sta = sta_info_get(sdata, next_hop); 2208 if (!sta) { 2209 rcu_read_unlock(); 2210 return -ENOENT; 2211 } 2212 2213 mpath = mesh_path_add(sdata, dst); 2214 if (IS_ERR(mpath)) { 2215 rcu_read_unlock(); 2216 return PTR_ERR(mpath); 2217 } 2218 2219 mesh_path_fix_nexthop(mpath, sta); 2220 2221 rcu_read_unlock(); 2222 return 0; 2223 } 2224 2225 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2226 const u8 *dst) 2227 { 2228 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2229 2230 if (dst) 2231 return mesh_path_del(sdata, dst); 2232 2233 mesh_path_flush_by_iface(sdata); 2234 return 0; 2235 } 2236 2237 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2238 const u8 *dst, const u8 *next_hop) 2239 { 2240 struct ieee80211_sub_if_data *sdata; 2241 struct mesh_path *mpath; 2242 struct sta_info *sta; 2243 2244 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2245 2246 rcu_read_lock(); 2247 2248 sta = sta_info_get(sdata, next_hop); 2249 if (!sta) { 2250 rcu_read_unlock(); 2251 return -ENOENT; 2252 } 2253 2254 mpath = mesh_path_lookup(sdata, dst); 2255 if (!mpath) { 2256 rcu_read_unlock(); 2257 return -ENOENT; 2258 } 2259 2260 mesh_path_fix_nexthop(mpath, sta); 2261 2262 rcu_read_unlock(); 2263 return 0; 2264 } 2265 2266 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2267 struct mpath_info *pinfo) 2268 { 2269 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2270 2271 if (next_hop_sta) 2272 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2273 else 2274 eth_zero_addr(next_hop); 2275 2276 memset(pinfo, 0, sizeof(*pinfo)); 2277 2278 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2279 2280 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2281 MPATH_INFO_SN | 2282 MPATH_INFO_METRIC | 2283 MPATH_INFO_EXPTIME | 2284 MPATH_INFO_DISCOVERY_TIMEOUT | 2285 MPATH_INFO_DISCOVERY_RETRIES | 2286 MPATH_INFO_FLAGS | 2287 MPATH_INFO_HOP_COUNT | 2288 MPATH_INFO_PATH_CHANGE; 2289 2290 pinfo->frame_qlen = mpath->frame_queue.qlen; 2291 pinfo->sn = mpath->sn; 2292 pinfo->metric = mpath->metric; 2293 if (time_before(jiffies, mpath->exp_time)) 2294 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2295 pinfo->discovery_timeout = 2296 jiffies_to_msecs(mpath->discovery_timeout); 2297 pinfo->discovery_retries = mpath->discovery_retries; 2298 if (mpath->flags & MESH_PATH_ACTIVE) 2299 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2300 if (mpath->flags & MESH_PATH_RESOLVING) 2301 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2302 if (mpath->flags & MESH_PATH_SN_VALID) 2303 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2304 if (mpath->flags & MESH_PATH_FIXED) 2305 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2306 if (mpath->flags & MESH_PATH_RESOLVED) 2307 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2308 pinfo->hop_count = mpath->hop_count; 2309 pinfo->path_change_count = mpath->path_change_count; 2310 } 2311 2312 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2313 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2314 2315 { 2316 struct ieee80211_sub_if_data *sdata; 2317 struct mesh_path *mpath; 2318 2319 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2320 2321 rcu_read_lock(); 2322 mpath = mesh_path_lookup(sdata, dst); 2323 if (!mpath) { 2324 rcu_read_unlock(); 2325 return -ENOENT; 2326 } 2327 memcpy(dst, mpath->dst, ETH_ALEN); 2328 mpath_set_pinfo(mpath, next_hop, pinfo); 2329 rcu_read_unlock(); 2330 return 0; 2331 } 2332 2333 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2334 int idx, u8 *dst, u8 *next_hop, 2335 struct mpath_info *pinfo) 2336 { 2337 struct ieee80211_sub_if_data *sdata; 2338 struct mesh_path *mpath; 2339 2340 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2341 2342 rcu_read_lock(); 2343 mpath = mesh_path_lookup_by_idx(sdata, idx); 2344 if (!mpath) { 2345 rcu_read_unlock(); 2346 return -ENOENT; 2347 } 2348 memcpy(dst, mpath->dst, ETH_ALEN); 2349 mpath_set_pinfo(mpath, next_hop, pinfo); 2350 rcu_read_unlock(); 2351 return 0; 2352 } 2353 2354 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2355 struct mpath_info *pinfo) 2356 { 2357 memset(pinfo, 0, sizeof(*pinfo)); 2358 memcpy(mpp, mpath->mpp, ETH_ALEN); 2359 2360 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2361 } 2362 2363 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2364 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2365 2366 { 2367 struct ieee80211_sub_if_data *sdata; 2368 struct mesh_path *mpath; 2369 2370 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2371 2372 rcu_read_lock(); 2373 mpath = mpp_path_lookup(sdata, dst); 2374 if (!mpath) { 2375 rcu_read_unlock(); 2376 return -ENOENT; 2377 } 2378 memcpy(dst, mpath->dst, ETH_ALEN); 2379 mpp_set_pinfo(mpath, mpp, pinfo); 2380 rcu_read_unlock(); 2381 return 0; 2382 } 2383 2384 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2385 int idx, u8 *dst, u8 *mpp, 2386 struct mpath_info *pinfo) 2387 { 2388 struct ieee80211_sub_if_data *sdata; 2389 struct mesh_path *mpath; 2390 2391 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2392 2393 rcu_read_lock(); 2394 mpath = mpp_path_lookup_by_idx(sdata, idx); 2395 if (!mpath) { 2396 rcu_read_unlock(); 2397 return -ENOENT; 2398 } 2399 memcpy(dst, mpath->dst, ETH_ALEN); 2400 mpp_set_pinfo(mpath, mpp, pinfo); 2401 rcu_read_unlock(); 2402 return 0; 2403 } 2404 2405 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2406 struct net_device *dev, 2407 struct mesh_config *conf) 2408 { 2409 struct ieee80211_sub_if_data *sdata; 2410 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2411 2412 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2413 return 0; 2414 } 2415 2416 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2417 { 2418 return (mask >> (parm-1)) & 0x1; 2419 } 2420 2421 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2422 const struct mesh_setup *setup) 2423 { 2424 u8 *new_ie; 2425 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2426 struct ieee80211_sub_if_data, u.mesh); 2427 int i; 2428 2429 /* allocate information elements */ 2430 new_ie = NULL; 2431 2432 if (setup->ie_len) { 2433 new_ie = kmemdup(setup->ie, setup->ie_len, 2434 GFP_KERNEL); 2435 if (!new_ie) 2436 return -ENOMEM; 2437 } 2438 ifmsh->ie_len = setup->ie_len; 2439 ifmsh->ie = new_ie; 2440 2441 /* now copy the rest of the setup parameters */ 2442 ifmsh->mesh_id_len = setup->mesh_id_len; 2443 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2444 ifmsh->mesh_sp_id = setup->sync_method; 2445 ifmsh->mesh_pp_id = setup->path_sel_proto; 2446 ifmsh->mesh_pm_id = setup->path_metric; 2447 ifmsh->user_mpm = setup->user_mpm; 2448 ifmsh->mesh_auth_id = setup->auth_id; 2449 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2450 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2451 if (setup->is_authenticated) 2452 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2453 if (setup->is_secure) 2454 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2455 2456 /* mcast rate setting in Mesh Node */ 2457 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2458 sizeof(setup->mcast_rate)); 2459 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2460 2461 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2462 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2463 2464 sdata->beacon_rate_set = false; 2465 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2466 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2467 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2468 sdata->beacon_rateidx_mask[i] = 2469 setup->beacon_rate.control[i].legacy; 2470 if (sdata->beacon_rateidx_mask[i]) 2471 sdata->beacon_rate_set = true; 2472 } 2473 } 2474 2475 return 0; 2476 } 2477 2478 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2479 struct net_device *dev, u32 mask, 2480 const struct mesh_config *nconf) 2481 { 2482 struct mesh_config *conf; 2483 struct ieee80211_sub_if_data *sdata; 2484 struct ieee80211_if_mesh *ifmsh; 2485 2486 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2487 ifmsh = &sdata->u.mesh; 2488 2489 /* Set the config options which we are interested in setting */ 2490 conf = &(sdata->u.mesh.mshcfg); 2491 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2492 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2493 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2494 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2495 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2496 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2497 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2498 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2499 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2500 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2501 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2502 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2503 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2504 conf->element_ttl = nconf->element_ttl; 2505 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2506 if (ifmsh->user_mpm) 2507 return -EBUSY; 2508 conf->auto_open_plinks = nconf->auto_open_plinks; 2509 } 2510 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2511 conf->dot11MeshNbrOffsetMaxNeighbor = 2512 nconf->dot11MeshNbrOffsetMaxNeighbor; 2513 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2514 conf->dot11MeshHWMPmaxPREQretries = 2515 nconf->dot11MeshHWMPmaxPREQretries; 2516 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2517 conf->path_refresh_time = nconf->path_refresh_time; 2518 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2519 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2520 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2521 conf->dot11MeshHWMPactivePathTimeout = 2522 nconf->dot11MeshHWMPactivePathTimeout; 2523 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2524 conf->dot11MeshHWMPpreqMinInterval = 2525 nconf->dot11MeshHWMPpreqMinInterval; 2526 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2527 conf->dot11MeshHWMPperrMinInterval = 2528 nconf->dot11MeshHWMPperrMinInterval; 2529 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2530 mask)) 2531 conf->dot11MeshHWMPnetDiameterTraversalTime = 2532 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2533 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2534 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2535 ieee80211_mesh_root_setup(ifmsh); 2536 } 2537 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2538 /* our current gate announcement implementation rides on root 2539 * announcements, so require this ifmsh to also be a root node 2540 * */ 2541 if (nconf->dot11MeshGateAnnouncementProtocol && 2542 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2543 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2544 ieee80211_mesh_root_setup(ifmsh); 2545 } 2546 conf->dot11MeshGateAnnouncementProtocol = 2547 nconf->dot11MeshGateAnnouncementProtocol; 2548 } 2549 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2550 conf->dot11MeshHWMPRannInterval = 2551 nconf->dot11MeshHWMPRannInterval; 2552 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2553 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2555 /* our RSSI threshold implementation is supported only for 2556 * devices that report signal in dBm. 2557 */ 2558 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2559 return -EOPNOTSUPP; 2560 conf->rssi_threshold = nconf->rssi_threshold; 2561 } 2562 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2563 conf->ht_opmode = nconf->ht_opmode; 2564 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2565 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2566 BSS_CHANGED_HT); 2567 } 2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2569 conf->dot11MeshHWMPactivePathToRootTimeout = 2570 nconf->dot11MeshHWMPactivePathToRootTimeout; 2571 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2572 conf->dot11MeshHWMProotInterval = 2573 nconf->dot11MeshHWMProotInterval; 2574 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2575 conf->dot11MeshHWMPconfirmationInterval = 2576 nconf->dot11MeshHWMPconfirmationInterval; 2577 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2578 conf->power_mode = nconf->power_mode; 2579 ieee80211_mps_local_status_update(sdata); 2580 } 2581 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2582 conf->dot11MeshAwakeWindowDuration = 2583 nconf->dot11MeshAwakeWindowDuration; 2584 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2585 conf->plink_timeout = nconf->plink_timeout; 2586 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2587 conf->dot11MeshConnectedToMeshGate = 2588 nconf->dot11MeshConnectedToMeshGate; 2589 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2590 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2591 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2592 conf->dot11MeshConnectedToAuthServer = 2593 nconf->dot11MeshConnectedToAuthServer; 2594 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2595 return 0; 2596 } 2597 2598 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2599 const struct mesh_config *conf, 2600 const struct mesh_setup *setup) 2601 { 2602 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2603 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2604 int err; 2605 2606 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2607 2608 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2609 err = copy_mesh_setup(ifmsh, setup); 2610 if (err) 2611 return err; 2612 2613 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2614 2615 /* can mesh use other SMPS modes? */ 2616 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2617 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2618 2619 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2620 IEEE80211_CHANCTX_SHARED); 2621 if (err) 2622 return err; 2623 2624 return ieee80211_start_mesh(sdata); 2625 } 2626 2627 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2628 { 2629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2630 2631 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2632 2633 ieee80211_stop_mesh(sdata); 2634 ieee80211_link_release_channel(&sdata->deflink); 2635 kfree(sdata->u.mesh.ie); 2636 2637 return 0; 2638 } 2639 #endif 2640 2641 static int ieee80211_change_bss(struct wiphy *wiphy, 2642 struct net_device *dev, 2643 struct bss_parameters *params) 2644 { 2645 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2646 struct ieee80211_link_data *link; 2647 struct ieee80211_supported_band *sband; 2648 u64 changed = 0; 2649 2650 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2651 if (IS_ERR(link)) 2652 return PTR_ERR(link); 2653 2654 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2655 return -ENOENT; 2656 2657 sband = ieee80211_get_link_sband(link); 2658 if (!sband) 2659 return -EINVAL; 2660 2661 if (params->basic_rates) { 2662 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2663 wiphy->bands[sband->band], 2664 params->basic_rates, 2665 params->basic_rates_len, 2666 &link->conf->basic_rates)) 2667 return -EINVAL; 2668 changed |= BSS_CHANGED_BASIC_RATES; 2669 ieee80211_check_rate_mask(link); 2670 } 2671 2672 if (params->use_cts_prot >= 0) { 2673 link->conf->use_cts_prot = params->use_cts_prot; 2674 changed |= BSS_CHANGED_ERP_CTS_PROT; 2675 } 2676 if (params->use_short_preamble >= 0) { 2677 link->conf->use_short_preamble = params->use_short_preamble; 2678 changed |= BSS_CHANGED_ERP_PREAMBLE; 2679 } 2680 2681 if (!link->conf->use_short_slot && 2682 (sband->band == NL80211_BAND_5GHZ || 2683 sband->band == NL80211_BAND_6GHZ)) { 2684 link->conf->use_short_slot = true; 2685 changed |= BSS_CHANGED_ERP_SLOT; 2686 } 2687 2688 if (params->use_short_slot_time >= 0) { 2689 link->conf->use_short_slot = params->use_short_slot_time; 2690 changed |= BSS_CHANGED_ERP_SLOT; 2691 } 2692 2693 if (params->ap_isolate >= 0) { 2694 if (params->ap_isolate) 2695 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2696 else 2697 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2698 ieee80211_check_fast_rx_iface(sdata); 2699 } 2700 2701 if (params->ht_opmode >= 0) { 2702 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2703 changed |= BSS_CHANGED_HT; 2704 } 2705 2706 if (params->p2p_ctwindow >= 0) { 2707 link->conf->p2p_noa_attr.oppps_ctwindow &= 2708 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2709 link->conf->p2p_noa_attr.oppps_ctwindow |= 2710 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2711 changed |= BSS_CHANGED_P2P_PS; 2712 } 2713 2714 if (params->p2p_opp_ps > 0) { 2715 link->conf->p2p_noa_attr.oppps_ctwindow |= 2716 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2717 changed |= BSS_CHANGED_P2P_PS; 2718 } else 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 } 2723 2724 ieee80211_link_info_change_notify(sdata, link, changed); 2725 2726 return 0; 2727 } 2728 2729 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2730 struct net_device *dev, 2731 struct ieee80211_txq_params *params) 2732 { 2733 struct ieee80211_local *local = wiphy_priv(wiphy); 2734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2735 struct ieee80211_link_data *link = 2736 ieee80211_link_or_deflink(sdata, params->link_id, true); 2737 struct ieee80211_tx_queue_params p; 2738 2739 if (!local->ops->conf_tx) 2740 return -EOPNOTSUPP; 2741 2742 if (local->hw.queues < IEEE80211_NUM_ACS) 2743 return -EOPNOTSUPP; 2744 2745 if (IS_ERR(link)) 2746 return PTR_ERR(link); 2747 2748 memset(&p, 0, sizeof(p)); 2749 p.aifs = params->aifs; 2750 p.cw_max = params->cwmax; 2751 p.cw_min = params->cwmin; 2752 p.txop = params->txop; 2753 2754 /* 2755 * Setting tx queue params disables u-apsd because it's only 2756 * called in master mode. 2757 */ 2758 p.uapsd = false; 2759 2760 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2761 2762 link->tx_conf[params->ac] = p; 2763 if (drv_conf_tx(local, link, params->ac, &p)) { 2764 wiphy_debug(local->hw.wiphy, 2765 "failed to set TX queue parameters for AC %d\n", 2766 params->ac); 2767 return -EINVAL; 2768 } 2769 2770 ieee80211_link_info_change_notify(sdata, link, 2771 BSS_CHANGED_QOS); 2772 2773 return 0; 2774 } 2775 2776 #ifdef CONFIG_PM 2777 static int ieee80211_suspend(struct wiphy *wiphy, 2778 struct cfg80211_wowlan *wowlan) 2779 { 2780 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2781 } 2782 2783 static int ieee80211_resume(struct wiphy *wiphy) 2784 { 2785 return __ieee80211_resume(wiphy_priv(wiphy)); 2786 } 2787 #else 2788 #define ieee80211_suspend NULL 2789 #define ieee80211_resume NULL 2790 #endif 2791 2792 static int ieee80211_scan(struct wiphy *wiphy, 2793 struct cfg80211_scan_request *req) 2794 { 2795 struct ieee80211_sub_if_data *sdata; 2796 2797 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2798 2799 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2800 case NL80211_IFTYPE_STATION: 2801 case NL80211_IFTYPE_ADHOC: 2802 case NL80211_IFTYPE_MESH_POINT: 2803 case NL80211_IFTYPE_P2P_CLIENT: 2804 case NL80211_IFTYPE_P2P_DEVICE: 2805 break; 2806 case NL80211_IFTYPE_P2P_GO: 2807 if (sdata->local->ops->hw_scan) 2808 break; 2809 /* 2810 * FIXME: implement NoA while scanning in software, 2811 * for now fall through to allow scanning only when 2812 * beaconing hasn't been configured yet 2813 */ 2814 fallthrough; 2815 case NL80211_IFTYPE_AP: 2816 /* 2817 * If the scan has been forced (and the driver supports 2818 * forcing), don't care about being beaconing already. 2819 * This will create problems to the attached stations (e.g. all 2820 * the frames sent while scanning on other channel will be 2821 * lost) 2822 */ 2823 if (sdata->deflink.u.ap.beacon && 2824 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2825 !(req->flags & NL80211_SCAN_FLAG_AP))) 2826 return -EOPNOTSUPP; 2827 break; 2828 case NL80211_IFTYPE_NAN: 2829 default: 2830 return -EOPNOTSUPP; 2831 } 2832 2833 return ieee80211_request_scan(sdata, req); 2834 } 2835 2836 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2837 { 2838 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2839 } 2840 2841 static int 2842 ieee80211_sched_scan_start(struct wiphy *wiphy, 2843 struct net_device *dev, 2844 struct cfg80211_sched_scan_request *req) 2845 { 2846 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2847 2848 if (!sdata->local->ops->sched_scan_start) 2849 return -EOPNOTSUPP; 2850 2851 return ieee80211_request_sched_scan_start(sdata, req); 2852 } 2853 2854 static int 2855 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2856 u64 reqid) 2857 { 2858 struct ieee80211_local *local = wiphy_priv(wiphy); 2859 2860 if (!local->ops->sched_scan_stop) 2861 return -EOPNOTSUPP; 2862 2863 return ieee80211_request_sched_scan_stop(local); 2864 } 2865 2866 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2867 struct cfg80211_auth_request *req) 2868 { 2869 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2870 } 2871 2872 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2873 struct cfg80211_assoc_request *req) 2874 { 2875 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2876 } 2877 2878 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2879 struct cfg80211_deauth_request *req) 2880 { 2881 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2882 } 2883 2884 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2885 struct cfg80211_disassoc_request *req) 2886 { 2887 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2888 } 2889 2890 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2891 struct cfg80211_ibss_params *params) 2892 { 2893 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2894 } 2895 2896 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2897 { 2898 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2899 } 2900 2901 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2902 struct ocb_setup *setup) 2903 { 2904 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2905 } 2906 2907 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2908 { 2909 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2910 } 2911 2912 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2913 int rate[NUM_NL80211_BANDS]) 2914 { 2915 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2916 2917 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2918 sizeof(int) * NUM_NL80211_BANDS); 2919 2920 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2921 BSS_CHANGED_MCAST_RATE); 2922 2923 return 0; 2924 } 2925 2926 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2927 { 2928 struct ieee80211_local *local = wiphy_priv(wiphy); 2929 int err; 2930 2931 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2932 ieee80211_check_fast_xmit_all(local); 2933 2934 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2935 2936 if (err) { 2937 ieee80211_check_fast_xmit_all(local); 2938 return err; 2939 } 2940 } 2941 2942 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2943 (changed & WIPHY_PARAM_DYN_ACK)) { 2944 s16 coverage_class; 2945 2946 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2947 wiphy->coverage_class : -1; 2948 err = drv_set_coverage_class(local, coverage_class); 2949 2950 if (err) 2951 return err; 2952 } 2953 2954 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2955 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2956 2957 if (err) 2958 return err; 2959 } 2960 2961 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2962 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2963 return -EINVAL; 2964 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2965 } 2966 if (changed & WIPHY_PARAM_RETRY_LONG) { 2967 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2968 return -EINVAL; 2969 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2970 } 2971 if (changed & 2972 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2973 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2974 2975 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2976 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2977 WIPHY_PARAM_TXQ_QUANTUM)) 2978 ieee80211_txq_set_params(local); 2979 2980 return 0; 2981 } 2982 2983 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2984 struct wireless_dev *wdev, 2985 enum nl80211_tx_power_setting type, int mbm) 2986 { 2987 struct ieee80211_local *local = wiphy_priv(wiphy); 2988 struct ieee80211_sub_if_data *sdata; 2989 enum nl80211_tx_power_setting txp_type = type; 2990 bool update_txp_type = false; 2991 bool has_monitor = false; 2992 2993 lockdep_assert_wiphy(local->hw.wiphy); 2994 2995 if (wdev) { 2996 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2997 2998 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2999 sdata = wiphy_dereference(local->hw.wiphy, 3000 local->monitor_sdata); 3001 if (!sdata) 3002 return -EOPNOTSUPP; 3003 } 3004 3005 switch (type) { 3006 case NL80211_TX_POWER_AUTOMATIC: 3007 sdata->deflink.user_power_level = 3008 IEEE80211_UNSET_POWER_LEVEL; 3009 txp_type = NL80211_TX_POWER_LIMITED; 3010 break; 3011 case NL80211_TX_POWER_LIMITED: 3012 case NL80211_TX_POWER_FIXED: 3013 if (mbm < 0 || (mbm % 100)) 3014 return -EOPNOTSUPP; 3015 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3016 break; 3017 } 3018 3019 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3020 update_txp_type = true; 3021 sdata->vif.bss_conf.txpower_type = txp_type; 3022 } 3023 3024 ieee80211_recalc_txpower(sdata, update_txp_type); 3025 3026 return 0; 3027 } 3028 3029 switch (type) { 3030 case NL80211_TX_POWER_AUTOMATIC: 3031 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3032 txp_type = NL80211_TX_POWER_LIMITED; 3033 break; 3034 case NL80211_TX_POWER_LIMITED: 3035 case NL80211_TX_POWER_FIXED: 3036 if (mbm < 0 || (mbm % 100)) 3037 return -EOPNOTSUPP; 3038 local->user_power_level = MBM_TO_DBM(mbm); 3039 break; 3040 } 3041 3042 list_for_each_entry(sdata, &local->interfaces, list) { 3043 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3044 has_monitor = true; 3045 continue; 3046 } 3047 sdata->deflink.user_power_level = local->user_power_level; 3048 if (txp_type != sdata->vif.bss_conf.txpower_type) 3049 update_txp_type = true; 3050 sdata->vif.bss_conf.txpower_type = txp_type; 3051 } 3052 list_for_each_entry(sdata, &local->interfaces, list) { 3053 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3054 continue; 3055 ieee80211_recalc_txpower(sdata, update_txp_type); 3056 } 3057 3058 if (has_monitor) { 3059 sdata = wiphy_dereference(local->hw.wiphy, 3060 local->monitor_sdata); 3061 if (sdata) { 3062 sdata->deflink.user_power_level = local->user_power_level; 3063 if (txp_type != sdata->vif.bss_conf.txpower_type) 3064 update_txp_type = true; 3065 sdata->vif.bss_conf.txpower_type = txp_type; 3066 3067 ieee80211_recalc_txpower(sdata, update_txp_type); 3068 } 3069 } 3070 3071 return 0; 3072 } 3073 3074 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3075 struct wireless_dev *wdev, 3076 int *dbm) 3077 { 3078 struct ieee80211_local *local = wiphy_priv(wiphy); 3079 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3080 3081 if (local->ops->get_txpower) 3082 return drv_get_txpower(local, sdata, dbm); 3083 3084 if (!local->use_chanctx) 3085 *dbm = local->hw.conf.power_level; 3086 else 3087 *dbm = sdata->vif.bss_conf.txpower; 3088 3089 /* INT_MIN indicates no power level was set yet */ 3090 if (*dbm == INT_MIN) 3091 return -EINVAL; 3092 3093 return 0; 3094 } 3095 3096 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3097 { 3098 struct ieee80211_local *local = wiphy_priv(wiphy); 3099 3100 drv_rfkill_poll(local); 3101 } 3102 3103 #ifdef CONFIG_NL80211_TESTMODE 3104 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3105 struct wireless_dev *wdev, 3106 void *data, int len) 3107 { 3108 struct ieee80211_local *local = wiphy_priv(wiphy); 3109 struct ieee80211_vif *vif = NULL; 3110 3111 if (!local->ops->testmode_cmd) 3112 return -EOPNOTSUPP; 3113 3114 if (wdev) { 3115 struct ieee80211_sub_if_data *sdata; 3116 3117 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3118 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3119 vif = &sdata->vif; 3120 } 3121 3122 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3123 } 3124 3125 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3126 struct sk_buff *skb, 3127 struct netlink_callback *cb, 3128 void *data, int len) 3129 { 3130 struct ieee80211_local *local = wiphy_priv(wiphy); 3131 3132 if (!local->ops->testmode_dump) 3133 return -EOPNOTSUPP; 3134 3135 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3136 } 3137 #endif 3138 3139 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3140 struct ieee80211_link_data *link, 3141 enum ieee80211_smps_mode smps_mode) 3142 { 3143 const u8 *ap; 3144 enum ieee80211_smps_mode old_req; 3145 int err; 3146 struct sta_info *sta; 3147 bool tdls_peer_found = false; 3148 3149 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3150 3151 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3152 return -EINVAL; 3153 3154 if (ieee80211_vif_is_mld(&sdata->vif) && 3155 !(sdata->vif.active_links & BIT(link->link_id))) 3156 return 0; 3157 3158 old_req = link->u.mgd.req_smps; 3159 link->u.mgd.req_smps = smps_mode; 3160 3161 /* The driver indicated that EML is enabled for the interface, which 3162 * implies that SMPS flows towards the AP should be stopped. 3163 */ 3164 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3165 return 0; 3166 3167 if (old_req == smps_mode && 3168 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3169 return 0; 3170 3171 /* 3172 * If not associated, or current association is not an HT 3173 * association, there's no need to do anything, just store 3174 * the new value until we associate. 3175 */ 3176 if (!sdata->u.mgd.associated || 3177 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3178 return 0; 3179 3180 ap = sdata->vif.cfg.ap_addr; 3181 3182 rcu_read_lock(); 3183 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3184 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3185 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3186 continue; 3187 3188 tdls_peer_found = true; 3189 break; 3190 } 3191 rcu_read_unlock(); 3192 3193 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3194 if (tdls_peer_found || !sdata->u.mgd.powersave) 3195 smps_mode = IEEE80211_SMPS_OFF; 3196 else 3197 smps_mode = IEEE80211_SMPS_DYNAMIC; 3198 } 3199 3200 /* send SM PS frame to AP */ 3201 err = ieee80211_send_smps_action(sdata, smps_mode, 3202 ap, ap, 3203 ieee80211_vif_is_mld(&sdata->vif) ? 3204 link->link_id : -1); 3205 if (err) 3206 link->u.mgd.req_smps = old_req; 3207 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3208 ieee80211_teardown_tdls_peers(sdata); 3209 3210 return err; 3211 } 3212 3213 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3214 bool enabled, int timeout) 3215 { 3216 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3217 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3218 unsigned int link_id; 3219 3220 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3221 return -EOPNOTSUPP; 3222 3223 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3224 return -EOPNOTSUPP; 3225 3226 if (enabled == sdata->u.mgd.powersave && 3227 timeout == local->dynamic_ps_forced_timeout) 3228 return 0; 3229 3230 sdata->u.mgd.powersave = enabled; 3231 local->dynamic_ps_forced_timeout = timeout; 3232 3233 /* no change, but if automatic follow powersave */ 3234 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3235 struct ieee80211_link_data *link; 3236 3237 link = sdata_dereference(sdata->link[link_id], sdata); 3238 3239 if (!link) 3240 continue; 3241 __ieee80211_request_smps_mgd(sdata, link, 3242 link->u.mgd.req_smps); 3243 } 3244 3245 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3246 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3247 3248 ieee80211_recalc_ps(local); 3249 ieee80211_recalc_ps_vif(sdata); 3250 ieee80211_check_fast_rx_iface(sdata); 3251 3252 return 0; 3253 } 3254 3255 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3256 struct net_device *dev, 3257 s32 rssi_thold, u32 rssi_hyst) 3258 { 3259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3260 struct ieee80211_vif *vif = &sdata->vif; 3261 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3262 3263 if (rssi_thold == bss_conf->cqm_rssi_thold && 3264 rssi_hyst == bss_conf->cqm_rssi_hyst) 3265 return 0; 3266 3267 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3268 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3269 return -EOPNOTSUPP; 3270 3271 bss_conf->cqm_rssi_thold = rssi_thold; 3272 bss_conf->cqm_rssi_hyst = rssi_hyst; 3273 bss_conf->cqm_rssi_low = 0; 3274 bss_conf->cqm_rssi_high = 0; 3275 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3276 3277 /* tell the driver upon association, unless already associated */ 3278 if (sdata->u.mgd.associated && 3279 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3280 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3281 BSS_CHANGED_CQM); 3282 3283 return 0; 3284 } 3285 3286 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3287 struct net_device *dev, 3288 s32 rssi_low, s32 rssi_high) 3289 { 3290 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3291 struct ieee80211_vif *vif = &sdata->vif; 3292 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3293 3294 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3295 return -EOPNOTSUPP; 3296 3297 bss_conf->cqm_rssi_low = rssi_low; 3298 bss_conf->cqm_rssi_high = rssi_high; 3299 bss_conf->cqm_rssi_thold = 0; 3300 bss_conf->cqm_rssi_hyst = 0; 3301 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3302 3303 /* tell the driver upon association, unless already associated */ 3304 if (sdata->u.mgd.associated && 3305 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3306 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3307 BSS_CHANGED_CQM); 3308 3309 return 0; 3310 } 3311 3312 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3313 struct net_device *dev, 3314 unsigned int link_id, 3315 const u8 *addr, 3316 const struct cfg80211_bitrate_mask *mask) 3317 { 3318 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3319 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3320 int i, ret; 3321 3322 if (!ieee80211_sdata_running(sdata)) 3323 return -ENETDOWN; 3324 3325 /* 3326 * If active validate the setting and reject it if it doesn't leave 3327 * at least one basic rate usable, since we really have to be able 3328 * to send something, and if we're an AP we have to be able to do 3329 * so at a basic rate so that all clients can receive it. 3330 */ 3331 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3332 sdata->vif.bss_conf.chandef.chan) { 3333 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3334 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3335 3336 if (!(mask->control[band].legacy & basic_rates)) 3337 return -EINVAL; 3338 } 3339 3340 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3341 ret = drv_set_bitrate_mask(local, sdata, mask); 3342 if (ret) 3343 return ret; 3344 } 3345 3346 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3347 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3348 int j; 3349 3350 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3351 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3352 sizeof(mask->control[i].ht_mcs)); 3353 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3354 mask->control[i].vht_mcs, 3355 sizeof(mask->control[i].vht_mcs)); 3356 3357 sdata->rc_has_mcs_mask[i] = false; 3358 sdata->rc_has_vht_mcs_mask[i] = false; 3359 if (!sband) 3360 continue; 3361 3362 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3363 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3364 sdata->rc_has_mcs_mask[i] = true; 3365 break; 3366 } 3367 } 3368 3369 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3370 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3371 sdata->rc_has_vht_mcs_mask[i] = true; 3372 break; 3373 } 3374 } 3375 } 3376 3377 return 0; 3378 } 3379 3380 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3381 struct net_device *dev, 3382 struct cfg80211_chan_def *chandef, 3383 u32 cac_time_ms) 3384 { 3385 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3386 struct ieee80211_local *local = sdata->local; 3387 int err; 3388 3389 lockdep_assert_wiphy(local->hw.wiphy); 3390 3391 if (!list_empty(&local->roc_list) || local->scanning) { 3392 err = -EBUSY; 3393 goto out_unlock; 3394 } 3395 3396 /* whatever, but channel contexts should not complain about that one */ 3397 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3398 sdata->deflink.needed_rx_chains = local->rx_chains; 3399 3400 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3401 IEEE80211_CHANCTX_SHARED); 3402 if (err) 3403 goto out_unlock; 3404 3405 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3406 msecs_to_jiffies(cac_time_ms)); 3407 3408 out_unlock: 3409 return err; 3410 } 3411 3412 static void ieee80211_end_cac(struct wiphy *wiphy, 3413 struct net_device *dev) 3414 { 3415 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3416 struct ieee80211_local *local = sdata->local; 3417 3418 lockdep_assert_wiphy(local->hw.wiphy); 3419 3420 list_for_each_entry(sdata, &local->interfaces, list) { 3421 /* it might be waiting for the local->mtx, but then 3422 * by the time it gets it, sdata->wdev.cac_started 3423 * will no longer be true 3424 */ 3425 wiphy_delayed_work_cancel(wiphy, 3426 &sdata->deflink.dfs_cac_timer_work); 3427 3428 if (sdata->wdev.cac_started) { 3429 ieee80211_link_release_channel(&sdata->deflink); 3430 sdata->wdev.cac_started = false; 3431 } 3432 } 3433 } 3434 3435 static struct cfg80211_beacon_data * 3436 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3437 { 3438 struct cfg80211_beacon_data *new_beacon; 3439 u8 *pos; 3440 int len; 3441 3442 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3443 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3444 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3445 3446 if (beacon->mbssid_ies) 3447 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3448 beacon->rnr_ies, 3449 beacon->mbssid_ies->cnt); 3450 3451 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3452 if (!new_beacon) 3453 return NULL; 3454 3455 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3456 new_beacon->mbssid_ies = 3457 kzalloc(struct_size(new_beacon->mbssid_ies, 3458 elem, beacon->mbssid_ies->cnt), 3459 GFP_KERNEL); 3460 if (!new_beacon->mbssid_ies) { 3461 kfree(new_beacon); 3462 return NULL; 3463 } 3464 3465 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3466 new_beacon->rnr_ies = 3467 kzalloc(struct_size(new_beacon->rnr_ies, 3468 elem, beacon->rnr_ies->cnt), 3469 GFP_KERNEL); 3470 if (!new_beacon->rnr_ies) { 3471 kfree(new_beacon->mbssid_ies); 3472 kfree(new_beacon); 3473 return NULL; 3474 } 3475 } 3476 } 3477 3478 pos = (u8 *)(new_beacon + 1); 3479 if (beacon->head_len) { 3480 new_beacon->head_len = beacon->head_len; 3481 new_beacon->head = pos; 3482 memcpy(pos, beacon->head, beacon->head_len); 3483 pos += beacon->head_len; 3484 } 3485 if (beacon->tail_len) { 3486 new_beacon->tail_len = beacon->tail_len; 3487 new_beacon->tail = pos; 3488 memcpy(pos, beacon->tail, beacon->tail_len); 3489 pos += beacon->tail_len; 3490 } 3491 if (beacon->beacon_ies_len) { 3492 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3493 new_beacon->beacon_ies = pos; 3494 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3495 pos += beacon->beacon_ies_len; 3496 } 3497 if (beacon->proberesp_ies_len) { 3498 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3499 new_beacon->proberesp_ies = pos; 3500 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3501 pos += beacon->proberesp_ies_len; 3502 } 3503 if (beacon->assocresp_ies_len) { 3504 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3505 new_beacon->assocresp_ies = pos; 3506 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3507 pos += beacon->assocresp_ies_len; 3508 } 3509 if (beacon->probe_resp_len) { 3510 new_beacon->probe_resp_len = beacon->probe_resp_len; 3511 new_beacon->probe_resp = pos; 3512 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3513 pos += beacon->probe_resp_len; 3514 } 3515 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3516 pos += ieee80211_copy_mbssid_beacon(pos, 3517 new_beacon->mbssid_ies, 3518 beacon->mbssid_ies); 3519 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3520 pos += ieee80211_copy_rnr_beacon(pos, 3521 new_beacon->rnr_ies, 3522 beacon->rnr_ies); 3523 } 3524 3525 /* might copy -1, meaning no changes requested */ 3526 new_beacon->ftm_responder = beacon->ftm_responder; 3527 if (beacon->lci) { 3528 new_beacon->lci_len = beacon->lci_len; 3529 new_beacon->lci = pos; 3530 memcpy(pos, beacon->lci, beacon->lci_len); 3531 pos += beacon->lci_len; 3532 } 3533 if (beacon->civicloc) { 3534 new_beacon->civicloc_len = beacon->civicloc_len; 3535 new_beacon->civicloc = pos; 3536 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3537 pos += beacon->civicloc_len; 3538 } 3539 3540 return new_beacon; 3541 } 3542 3543 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3544 { 3545 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3546 struct ieee80211_local *local = sdata->local; 3547 3548 rcu_read_lock(); 3549 3550 if (vif->mbssid_tx_vif == vif) { 3551 /* Trigger ieee80211_csa_finish() on the non-transmitting 3552 * interfaces when channel switch is received on 3553 * transmitting interface 3554 */ 3555 struct ieee80211_sub_if_data *iter; 3556 3557 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3558 if (!ieee80211_sdata_running(iter)) 3559 continue; 3560 3561 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3562 continue; 3563 3564 wiphy_work_queue(iter->local->hw.wiphy, 3565 &iter->deflink.csa_finalize_work); 3566 } 3567 } 3568 wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work); 3569 3570 rcu_read_unlock(); 3571 } 3572 EXPORT_SYMBOL(ieee80211_csa_finish); 3573 3574 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3575 { 3576 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3577 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3578 struct ieee80211_local *local = sdata->local; 3579 3580 sdata->deflink.csa_block_tx = block_tx; 3581 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3582 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3583 } 3584 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3585 3586 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3587 u64 *changed) 3588 { 3589 int err; 3590 3591 switch (sdata->vif.type) { 3592 case NL80211_IFTYPE_AP: 3593 if (!sdata->deflink.u.ap.next_beacon) 3594 return -EINVAL; 3595 3596 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3597 sdata->deflink.u.ap.next_beacon, 3598 NULL, NULL, changed); 3599 ieee80211_free_next_beacon(&sdata->deflink); 3600 3601 if (err < 0) 3602 return err; 3603 break; 3604 case NL80211_IFTYPE_ADHOC: 3605 err = ieee80211_ibss_finish_csa(sdata, changed); 3606 if (err < 0) 3607 return err; 3608 break; 3609 #ifdef CONFIG_MAC80211_MESH 3610 case NL80211_IFTYPE_MESH_POINT: 3611 err = ieee80211_mesh_finish_csa(sdata, changed); 3612 if (err < 0) 3613 return err; 3614 break; 3615 #endif 3616 default: 3617 WARN_ON(1); 3618 return -EINVAL; 3619 } 3620 3621 return 0; 3622 } 3623 3624 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3625 { 3626 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3627 struct ieee80211_local *local = sdata->local; 3628 u64 changed = 0; 3629 int err; 3630 3631 lockdep_assert_wiphy(local->hw.wiphy); 3632 3633 /* 3634 * using reservation isn't immediate as it may be deferred until later 3635 * with multi-vif. once reservation is complete it will re-schedule the 3636 * work with no reserved_chanctx so verify chandef to check if it 3637 * completed successfully 3638 */ 3639 3640 if (link_data->reserved_chanctx) { 3641 /* 3642 * with multi-vif csa driver may call ieee80211_csa_finish() 3643 * many times while waiting for other interfaces to use their 3644 * reservations 3645 */ 3646 if (link_data->reserved_ready) 3647 return 0; 3648 3649 return ieee80211_link_use_reserved_context(&sdata->deflink); 3650 } 3651 3652 if (!cfg80211_chandef_identical(&link_data->conf->chandef, 3653 &link_data->csa_chandef)) 3654 return -EINVAL; 3655 3656 sdata->vif.bss_conf.csa_active = false; 3657 3658 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3659 if (err) 3660 return err; 3661 3662 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3663 sdata->vif.bss_conf.eht_puncturing = 3664 sdata->vif.bss_conf.csa_punct_bitmap; 3665 changed |= BSS_CHANGED_EHT_PUNCTURING; 3666 } 3667 3668 ieee80211_link_info_change_notify(sdata, link_data, changed); 3669 3670 if (link_data->csa_block_tx) { 3671 ieee80211_wake_vif_queues(local, sdata, 3672 IEEE80211_QUEUE_STOP_REASON_CSA); 3673 link_data->csa_block_tx = false; 3674 } 3675 3676 err = drv_post_channel_switch(link_data); 3677 if (err) 3678 return err; 3679 3680 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef, 3681 link_data->link_id, 3682 link_data->conf->eht_puncturing); 3683 3684 return 0; 3685 } 3686 3687 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3688 { 3689 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3690 3691 if (__ieee80211_csa_finalize(link_data)) { 3692 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3693 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3694 GFP_KERNEL); 3695 } 3696 } 3697 3698 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3699 { 3700 struct ieee80211_link_data *link = 3701 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3702 struct ieee80211_sub_if_data *sdata = link->sdata; 3703 struct ieee80211_local *local = sdata->local; 3704 3705 lockdep_assert_wiphy(local->hw.wiphy); 3706 3707 /* AP might have been stopped while waiting for the lock. */ 3708 if (!link->conf->csa_active) 3709 return; 3710 3711 if (!ieee80211_sdata_running(sdata)) 3712 return; 3713 3714 ieee80211_csa_finalize(link); 3715 } 3716 3717 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3718 struct cfg80211_csa_settings *params, 3719 u64 *changed) 3720 { 3721 struct ieee80211_csa_settings csa = {}; 3722 int err; 3723 3724 switch (sdata->vif.type) { 3725 case NL80211_IFTYPE_AP: 3726 sdata->deflink.u.ap.next_beacon = 3727 cfg80211_beacon_dup(¶ms->beacon_after); 3728 if (!sdata->deflink.u.ap.next_beacon) 3729 return -ENOMEM; 3730 3731 /* 3732 * With a count of 0, we don't have to wait for any 3733 * TBTT before switching, so complete the CSA 3734 * immediately. In theory, with a count == 1 we 3735 * should delay the switch until just before the next 3736 * TBTT, but that would complicate things so we switch 3737 * immediately too. If we would delay the switch 3738 * until the next TBTT, we would have to set the probe 3739 * response here. 3740 * 3741 * TODO: A channel switch with count <= 1 without 3742 * sending a CSA action frame is kind of useless, 3743 * because the clients won't know we're changing 3744 * channels. The action frame must be implemented 3745 * either here or in the userspace. 3746 */ 3747 if (params->count <= 1) 3748 break; 3749 3750 if ((params->n_counter_offsets_beacon > 3751 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3752 (params->n_counter_offsets_presp > 3753 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3754 ieee80211_free_next_beacon(&sdata->deflink); 3755 return -EINVAL; 3756 } 3757 3758 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3759 csa.counter_offsets_presp = params->counter_offsets_presp; 3760 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3761 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3762 csa.count = params->count; 3763 3764 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3765 ¶ms->beacon_csa, &csa, 3766 NULL, changed); 3767 if (err < 0) { 3768 ieee80211_free_next_beacon(&sdata->deflink); 3769 return err; 3770 } 3771 3772 break; 3773 case NL80211_IFTYPE_ADHOC: 3774 if (!sdata->vif.cfg.ibss_joined) 3775 return -EINVAL; 3776 3777 if (params->chandef.width != sdata->u.ibss.chandef.width) 3778 return -EINVAL; 3779 3780 switch (params->chandef.width) { 3781 case NL80211_CHAN_WIDTH_40: 3782 if (cfg80211_get_chandef_type(¶ms->chandef) != 3783 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3784 return -EINVAL; 3785 break; 3786 case NL80211_CHAN_WIDTH_5: 3787 case NL80211_CHAN_WIDTH_10: 3788 case NL80211_CHAN_WIDTH_20_NOHT: 3789 case NL80211_CHAN_WIDTH_20: 3790 break; 3791 default: 3792 return -EINVAL; 3793 } 3794 3795 /* changes into another band are not supported */ 3796 if (sdata->u.ibss.chandef.chan->band != 3797 params->chandef.chan->band) 3798 return -EINVAL; 3799 3800 /* see comments in the NL80211_IFTYPE_AP block */ 3801 if (params->count > 1) { 3802 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3803 if (err < 0) 3804 return err; 3805 } 3806 3807 ieee80211_send_action_csa(sdata, params); 3808 3809 break; 3810 #ifdef CONFIG_MAC80211_MESH 3811 case NL80211_IFTYPE_MESH_POINT: { 3812 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3813 3814 /* changes into another band are not supported */ 3815 if (sdata->vif.bss_conf.chandef.chan->band != 3816 params->chandef.chan->band) 3817 return -EINVAL; 3818 3819 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3820 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3821 if (!ifmsh->pre_value) 3822 ifmsh->pre_value = 1; 3823 else 3824 ifmsh->pre_value++; 3825 } 3826 3827 /* see comments in the NL80211_IFTYPE_AP block */ 3828 if (params->count > 1) { 3829 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3830 if (err < 0) { 3831 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3832 return err; 3833 } 3834 } 3835 3836 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3837 ieee80211_send_action_csa(sdata, params); 3838 3839 break; 3840 } 3841 #endif 3842 default: 3843 return -EOPNOTSUPP; 3844 } 3845 3846 return 0; 3847 } 3848 3849 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3850 { 3851 sdata->vif.bss_conf.color_change_active = false; 3852 3853 ieee80211_free_next_beacon(&sdata->deflink); 3854 3855 cfg80211_color_change_aborted_notify(sdata->dev); 3856 } 3857 3858 static int 3859 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3860 struct cfg80211_csa_settings *params) 3861 { 3862 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3863 struct ieee80211_local *local = sdata->local; 3864 struct ieee80211_channel_switch ch_switch; 3865 struct ieee80211_chanctx_conf *conf; 3866 struct ieee80211_chanctx *chanctx; 3867 u64 changed = 0; 3868 int err; 3869 3870 lockdep_assert_wiphy(local->hw.wiphy); 3871 3872 if (!list_empty(&local->roc_list) || local->scanning) 3873 return -EBUSY; 3874 3875 if (sdata->wdev.cac_started) 3876 return -EBUSY; 3877 3878 if (cfg80211_chandef_identical(¶ms->chandef, 3879 &sdata->vif.bss_conf.chandef)) 3880 return -EINVAL; 3881 3882 /* don't allow another channel switch if one is already active. */ 3883 if (sdata->vif.bss_conf.csa_active) 3884 return -EBUSY; 3885 3886 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3887 lockdep_is_held(&local->hw.wiphy->mtx)); 3888 if (!conf) { 3889 err = -EBUSY; 3890 goto out; 3891 } 3892 3893 if (params->chandef.chan->freq_offset) { 3894 /* this may work, but is untested */ 3895 err = -EOPNOTSUPP; 3896 goto out; 3897 } 3898 3899 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3900 3901 ch_switch.timestamp = 0; 3902 ch_switch.device_timestamp = 0; 3903 ch_switch.block_tx = params->block_tx; 3904 ch_switch.chandef = params->chandef; 3905 ch_switch.count = params->count; 3906 3907 err = drv_pre_channel_switch(sdata, &ch_switch); 3908 if (err) 3909 goto out; 3910 3911 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3912 chanctx->mode, 3913 params->radar_required); 3914 if (err) 3915 goto out; 3916 3917 /* if reservation is invalid then this will fail */ 3918 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3919 if (err) { 3920 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3921 goto out; 3922 } 3923 3924 /* if there is a color change in progress, abort it */ 3925 if (sdata->vif.bss_conf.color_change_active) 3926 ieee80211_color_change_abort(sdata); 3927 3928 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3929 if (err) { 3930 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3931 goto out; 3932 } 3933 3934 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3935 goto out; 3936 3937 sdata->deflink.csa_chandef = params->chandef; 3938 sdata->deflink.csa_block_tx = params->block_tx; 3939 sdata->vif.bss_conf.csa_active = true; 3940 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3941 3942 if (sdata->deflink.csa_block_tx) 3943 ieee80211_stop_vif_queues(local, sdata, 3944 IEEE80211_QUEUE_STOP_REASON_CSA); 3945 3946 cfg80211_ch_switch_started_notify(sdata->dev, 3947 &sdata->deflink.csa_chandef, 0, 3948 params->count, params->block_tx, 3949 sdata->vif.bss_conf.csa_punct_bitmap); 3950 3951 if (changed) { 3952 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3953 changed); 3954 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3955 } else { 3956 /* if the beacon didn't change, we can finalize immediately */ 3957 ieee80211_csa_finalize(&sdata->deflink); 3958 } 3959 3960 out: 3961 return err; 3962 } 3963 3964 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3965 struct cfg80211_csa_settings *params) 3966 { 3967 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3968 struct ieee80211_local *local = sdata->local; 3969 3970 lockdep_assert_wiphy(local->hw.wiphy); 3971 3972 return __ieee80211_channel_switch(wiphy, dev, params); 3973 } 3974 3975 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3976 { 3977 lockdep_assert_wiphy(local->hw.wiphy); 3978 3979 local->roc_cookie_counter++; 3980 3981 /* wow, you wrapped 64 bits ... more likely a bug */ 3982 if (WARN_ON(local->roc_cookie_counter == 0)) 3983 local->roc_cookie_counter++; 3984 3985 return local->roc_cookie_counter; 3986 } 3987 3988 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3989 u64 *cookie, gfp_t gfp) 3990 { 3991 unsigned long spin_flags; 3992 struct sk_buff *ack_skb; 3993 int id; 3994 3995 ack_skb = skb_copy(skb, gfp); 3996 if (!ack_skb) 3997 return -ENOMEM; 3998 3999 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4000 id = idr_alloc(&local->ack_status_frames, ack_skb, 4001 1, 0x2000, GFP_ATOMIC); 4002 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4003 4004 if (id < 0) { 4005 kfree_skb(ack_skb); 4006 return -ENOMEM; 4007 } 4008 4009 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4010 IEEE80211_SKB_CB(skb)->status_data = id; 4011 4012 *cookie = ieee80211_mgmt_tx_cookie(local); 4013 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4014 4015 return 0; 4016 } 4017 4018 static void 4019 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4020 struct wireless_dev *wdev, 4021 struct mgmt_frame_regs *upd) 4022 { 4023 struct ieee80211_local *local = wiphy_priv(wiphy); 4024 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4025 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4026 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4027 bool global_change, intf_change; 4028 4029 global_change = 4030 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4031 (local->rx_mcast_action_reg != 4032 !!(upd->global_mcast_stypes & action_mask)); 4033 local->probe_req_reg = upd->global_stypes & preq_mask; 4034 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4035 4036 intf_change = (sdata->vif.probe_req_reg != 4037 !!(upd->interface_stypes & preq_mask)) || 4038 (sdata->vif.rx_mcast_action_reg != 4039 !!(upd->interface_mcast_stypes & action_mask)); 4040 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4041 sdata->vif.rx_mcast_action_reg = 4042 upd->interface_mcast_stypes & action_mask; 4043 4044 if (!local->open_count) 4045 return; 4046 4047 if (intf_change && ieee80211_sdata_running(sdata)) 4048 drv_config_iface_filter(local, sdata, 4049 sdata->vif.probe_req_reg ? 4050 FIF_PROBE_REQ : 0, 4051 FIF_PROBE_REQ); 4052 4053 if (global_change) 4054 ieee80211_configure_filter(local); 4055 } 4056 4057 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4058 { 4059 struct ieee80211_local *local = wiphy_priv(wiphy); 4060 int ret; 4061 4062 if (local->started) 4063 return -EOPNOTSUPP; 4064 4065 ret = drv_set_antenna(local, tx_ant, rx_ant); 4066 if (ret) 4067 return ret; 4068 4069 local->rx_chains = hweight8(rx_ant); 4070 return 0; 4071 } 4072 4073 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4074 { 4075 struct ieee80211_local *local = wiphy_priv(wiphy); 4076 4077 return drv_get_antenna(local, tx_ant, rx_ant); 4078 } 4079 4080 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4081 struct net_device *dev, 4082 struct cfg80211_gtk_rekey_data *data) 4083 { 4084 struct ieee80211_local *local = wiphy_priv(wiphy); 4085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4086 4087 if (!local->ops->set_rekey_data) 4088 return -EOPNOTSUPP; 4089 4090 drv_set_rekey_data(local, sdata, data); 4091 4092 return 0; 4093 } 4094 4095 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4096 const u8 *peer, u64 *cookie) 4097 { 4098 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4099 struct ieee80211_local *local = sdata->local; 4100 struct ieee80211_qos_hdr *nullfunc; 4101 struct sk_buff *skb; 4102 int size = sizeof(*nullfunc); 4103 __le16 fc; 4104 bool qos; 4105 struct ieee80211_tx_info *info; 4106 struct sta_info *sta; 4107 struct ieee80211_chanctx_conf *chanctx_conf; 4108 enum nl80211_band band; 4109 int ret; 4110 4111 /* the lock is needed to assign the cookie later */ 4112 lockdep_assert_wiphy(local->hw.wiphy); 4113 4114 rcu_read_lock(); 4115 sta = sta_info_get_bss(sdata, peer); 4116 if (!sta) { 4117 ret = -ENOLINK; 4118 goto unlock; 4119 } 4120 4121 qos = sta->sta.wme; 4122 4123 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4124 if (WARN_ON(!chanctx_conf)) { 4125 ret = -EINVAL; 4126 goto unlock; 4127 } 4128 band = chanctx_conf->def.chan->band; 4129 4130 if (qos) { 4131 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4132 IEEE80211_STYPE_QOS_NULLFUNC | 4133 IEEE80211_FCTL_FROMDS); 4134 } else { 4135 size -= 2; 4136 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4137 IEEE80211_STYPE_NULLFUNC | 4138 IEEE80211_FCTL_FROMDS); 4139 } 4140 4141 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4142 if (!skb) { 4143 ret = -ENOMEM; 4144 goto unlock; 4145 } 4146 4147 skb->dev = dev; 4148 4149 skb_reserve(skb, local->hw.extra_tx_headroom); 4150 4151 nullfunc = skb_put(skb, size); 4152 nullfunc->frame_control = fc; 4153 nullfunc->duration_id = 0; 4154 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4155 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4156 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4157 nullfunc->seq_ctrl = 0; 4158 4159 info = IEEE80211_SKB_CB(skb); 4160 4161 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4162 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4163 info->band = band; 4164 4165 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4166 skb->priority = 7; 4167 if (qos) 4168 nullfunc->qos_ctrl = cpu_to_le16(7); 4169 4170 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4171 if (ret) { 4172 kfree_skb(skb); 4173 goto unlock; 4174 } 4175 4176 local_bh_disable(); 4177 ieee80211_xmit(sdata, sta, skb); 4178 local_bh_enable(); 4179 4180 ret = 0; 4181 unlock: 4182 rcu_read_unlock(); 4183 4184 return ret; 4185 } 4186 4187 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4188 struct wireless_dev *wdev, 4189 unsigned int link_id, 4190 struct cfg80211_chan_def *chandef) 4191 { 4192 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4193 struct ieee80211_local *local = wiphy_priv(wiphy); 4194 struct ieee80211_chanctx_conf *chanctx_conf; 4195 struct ieee80211_link_data *link; 4196 int ret = -ENODATA; 4197 4198 rcu_read_lock(); 4199 link = rcu_dereference(sdata->link[link_id]); 4200 if (!link) { 4201 ret = -ENOLINK; 4202 goto out; 4203 } 4204 4205 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4206 if (chanctx_conf) { 4207 *chandef = link->conf->chandef; 4208 ret = 0; 4209 } else if (local->open_count > 0 && 4210 local->open_count == local->monitors && 4211 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4212 if (local->use_chanctx) 4213 *chandef = local->monitor_chandef; 4214 else 4215 *chandef = local->_oper_chandef; 4216 ret = 0; 4217 } 4218 out: 4219 rcu_read_unlock(); 4220 4221 return ret; 4222 } 4223 4224 #ifdef CONFIG_PM 4225 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4226 { 4227 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4228 } 4229 #endif 4230 4231 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4232 struct net_device *dev, 4233 struct cfg80211_qos_map *qos_map) 4234 { 4235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4236 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4237 4238 if (qos_map) { 4239 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4240 if (!new_qos_map) 4241 return -ENOMEM; 4242 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4243 } else { 4244 /* A NULL qos_map was passed to disable QoS mapping */ 4245 new_qos_map = NULL; 4246 } 4247 4248 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4249 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4250 if (old_qos_map) 4251 kfree_rcu(old_qos_map, rcu_head); 4252 4253 return 0; 4254 } 4255 4256 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4257 struct net_device *dev, 4258 unsigned int link_id, 4259 struct cfg80211_chan_def *chandef) 4260 { 4261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4262 struct ieee80211_link_data *link; 4263 int ret; 4264 u64 changed = 0; 4265 4266 link = sdata_dereference(sdata->link[link_id], sdata); 4267 4268 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4269 if (ret == 0) 4270 ieee80211_link_info_change_notify(sdata, link, changed); 4271 4272 return ret; 4273 } 4274 4275 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4276 u8 tsid, const u8 *peer, u8 up, 4277 u16 admitted_time) 4278 { 4279 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4280 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4281 int ac = ieee802_1d_to_ac[up]; 4282 4283 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4284 return -EOPNOTSUPP; 4285 4286 if (!(sdata->wmm_acm & BIT(up))) 4287 return -EINVAL; 4288 4289 if (ifmgd->tx_tspec[ac].admitted_time) 4290 return -EBUSY; 4291 4292 if (admitted_time) { 4293 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4294 ifmgd->tx_tspec[ac].tsid = tsid; 4295 ifmgd->tx_tspec[ac].up = up; 4296 } 4297 4298 return 0; 4299 } 4300 4301 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4302 u8 tsid, const u8 *peer) 4303 { 4304 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4305 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4306 struct ieee80211_local *local = wiphy_priv(wiphy); 4307 int ac; 4308 4309 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4310 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4311 4312 /* skip unused entries */ 4313 if (!tx_tspec->admitted_time) 4314 continue; 4315 4316 if (tx_tspec->tsid != tsid) 4317 continue; 4318 4319 /* due to this new packets will be reassigned to non-ACM ACs */ 4320 tx_tspec->up = -1; 4321 4322 /* Make sure that all packets have been sent to avoid to 4323 * restore the QoS params on packets that are still on the 4324 * queues. 4325 */ 4326 synchronize_net(); 4327 ieee80211_flush_queues(local, sdata, false); 4328 4329 /* restore the normal QoS parameters 4330 * (unconditionally to avoid races) 4331 */ 4332 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4333 tx_tspec->downgraded = false; 4334 ieee80211_sta_handle_tspec_ac_params(sdata); 4335 4336 /* finally clear all the data */ 4337 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4338 4339 return 0; 4340 } 4341 4342 return -ENOENT; 4343 } 4344 4345 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4346 u8 inst_id, 4347 enum nl80211_nan_func_term_reason reason, 4348 gfp_t gfp) 4349 { 4350 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4351 struct cfg80211_nan_func *func; 4352 u64 cookie; 4353 4354 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4355 return; 4356 4357 spin_lock_bh(&sdata->u.nan.func_lock); 4358 4359 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4360 if (WARN_ON(!func)) { 4361 spin_unlock_bh(&sdata->u.nan.func_lock); 4362 return; 4363 } 4364 4365 cookie = func->cookie; 4366 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4367 4368 spin_unlock_bh(&sdata->u.nan.func_lock); 4369 4370 cfg80211_free_nan_func(func); 4371 4372 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4373 reason, cookie, gfp); 4374 } 4375 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4376 4377 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4378 struct cfg80211_nan_match_params *match, 4379 gfp_t gfp) 4380 { 4381 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4382 struct cfg80211_nan_func *func; 4383 4384 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4385 return; 4386 4387 spin_lock_bh(&sdata->u.nan.func_lock); 4388 4389 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4390 if (WARN_ON(!func)) { 4391 spin_unlock_bh(&sdata->u.nan.func_lock); 4392 return; 4393 } 4394 match->cookie = func->cookie; 4395 4396 spin_unlock_bh(&sdata->u.nan.func_lock); 4397 4398 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4399 } 4400 EXPORT_SYMBOL(ieee80211_nan_func_match); 4401 4402 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4403 struct net_device *dev, 4404 const bool enabled) 4405 { 4406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4407 4408 sdata->u.ap.multicast_to_unicast = enabled; 4409 4410 return 0; 4411 } 4412 4413 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4414 struct txq_info *txqi) 4415 { 4416 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4417 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4418 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4419 } 4420 4421 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4422 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4423 txqstats->backlog_packets = txqi->tin.backlog_packets; 4424 } 4425 4426 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4427 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4428 txqstats->flows = txqi->tin.flows; 4429 } 4430 4431 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4432 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4433 txqstats->drops = txqi->cstats.drop_count; 4434 } 4435 4436 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4437 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4438 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4439 } 4440 4441 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4442 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4443 txqstats->overlimit = txqi->tin.overlimit; 4444 } 4445 4446 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4447 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4448 txqstats->collisions = txqi->tin.collisions; 4449 } 4450 4451 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4452 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4453 txqstats->tx_bytes = txqi->tin.tx_bytes; 4454 } 4455 4456 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4457 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4458 txqstats->tx_packets = txqi->tin.tx_packets; 4459 } 4460 } 4461 4462 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4463 struct wireless_dev *wdev, 4464 struct cfg80211_txq_stats *txqstats) 4465 { 4466 struct ieee80211_local *local = wiphy_priv(wiphy); 4467 struct ieee80211_sub_if_data *sdata; 4468 int ret = 0; 4469 4470 spin_lock_bh(&local->fq.lock); 4471 rcu_read_lock(); 4472 4473 if (wdev) { 4474 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4475 if (!sdata->vif.txq) { 4476 ret = 1; 4477 goto out; 4478 } 4479 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4480 } else { 4481 /* phy stats */ 4482 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4483 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4484 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4485 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4486 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4487 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4488 txqstats->backlog_packets = local->fq.backlog; 4489 txqstats->backlog_bytes = local->fq.memory_usage; 4490 txqstats->overlimit = local->fq.overlimit; 4491 txqstats->overmemory = local->fq.overmemory; 4492 txqstats->collisions = local->fq.collisions; 4493 txqstats->max_flows = local->fq.flows_cnt; 4494 } 4495 4496 out: 4497 rcu_read_unlock(); 4498 spin_unlock_bh(&local->fq.lock); 4499 4500 return ret; 4501 } 4502 4503 static int 4504 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4505 struct net_device *dev, 4506 struct cfg80211_ftm_responder_stats *ftm_stats) 4507 { 4508 struct ieee80211_local *local = wiphy_priv(wiphy); 4509 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4510 4511 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4512 } 4513 4514 static int 4515 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4516 struct cfg80211_pmsr_request *request) 4517 { 4518 struct ieee80211_local *local = wiphy_priv(wiphy); 4519 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4520 4521 return drv_start_pmsr(local, sdata, request); 4522 } 4523 4524 static void 4525 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4526 struct cfg80211_pmsr_request *request) 4527 { 4528 struct ieee80211_local *local = wiphy_priv(wiphy); 4529 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4530 4531 return drv_abort_pmsr(local, sdata, request); 4532 } 4533 4534 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4535 struct net_device *dev, 4536 struct cfg80211_tid_config *tid_conf) 4537 { 4538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4539 struct sta_info *sta; 4540 4541 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4542 4543 if (!sdata->local->ops->set_tid_config) 4544 return -EOPNOTSUPP; 4545 4546 if (!tid_conf->peer) 4547 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4548 4549 sta = sta_info_get_bss(sdata, tid_conf->peer); 4550 if (!sta) 4551 return -ENOENT; 4552 4553 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4554 } 4555 4556 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4557 struct net_device *dev, 4558 const u8 *peer, u8 tids) 4559 { 4560 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4561 struct sta_info *sta; 4562 4563 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4564 4565 if (!sdata->local->ops->reset_tid_config) 4566 return -EOPNOTSUPP; 4567 4568 if (!peer) 4569 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4570 4571 sta = sta_info_get_bss(sdata, peer); 4572 if (!sta) 4573 return -ENOENT; 4574 4575 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4576 } 4577 4578 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4579 struct cfg80211_sar_specs *sar) 4580 { 4581 struct ieee80211_local *local = wiphy_priv(wiphy); 4582 4583 if (!local->ops->set_sar_specs) 4584 return -EOPNOTSUPP; 4585 4586 return local->ops->set_sar_specs(&local->hw, sar); 4587 } 4588 4589 static int 4590 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4591 u64 *changed) 4592 { 4593 switch (sdata->vif.type) { 4594 case NL80211_IFTYPE_AP: { 4595 int ret; 4596 4597 if (!sdata->deflink.u.ap.next_beacon) 4598 return -EINVAL; 4599 4600 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4601 sdata->deflink.u.ap.next_beacon, 4602 NULL, NULL, changed); 4603 ieee80211_free_next_beacon(&sdata->deflink); 4604 4605 if (ret < 0) 4606 return ret; 4607 4608 break; 4609 } 4610 default: 4611 WARN_ON_ONCE(1); 4612 return -EINVAL; 4613 } 4614 4615 return 0; 4616 } 4617 4618 static int 4619 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4620 struct cfg80211_color_change_settings *params, 4621 u64 *changed) 4622 { 4623 struct ieee80211_color_change_settings color_change = {}; 4624 int err; 4625 4626 switch (sdata->vif.type) { 4627 case NL80211_IFTYPE_AP: 4628 sdata->deflink.u.ap.next_beacon = 4629 cfg80211_beacon_dup(¶ms->beacon_next); 4630 if (!sdata->deflink.u.ap.next_beacon) 4631 return -ENOMEM; 4632 4633 if (params->count <= 1) 4634 break; 4635 4636 color_change.counter_offset_beacon = 4637 params->counter_offset_beacon; 4638 color_change.counter_offset_presp = 4639 params->counter_offset_presp; 4640 color_change.count = params->count; 4641 4642 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4643 ¶ms->beacon_color_change, 4644 NULL, &color_change, changed); 4645 if (err < 0) { 4646 ieee80211_free_next_beacon(&sdata->deflink); 4647 return err; 4648 } 4649 break; 4650 default: 4651 return -EOPNOTSUPP; 4652 } 4653 4654 return 0; 4655 } 4656 4657 static void 4658 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4659 u8 color, int enable, u64 changed) 4660 { 4661 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4662 4663 sdata->vif.bss_conf.he_bss_color.color = color; 4664 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4665 changed |= BSS_CHANGED_HE_BSS_COLOR; 4666 4667 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4668 4669 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4670 struct ieee80211_sub_if_data *child; 4671 4672 list_for_each_entry(child, &sdata->local->interfaces, list) { 4673 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4674 child->vif.bss_conf.he_bss_color.color = color; 4675 child->vif.bss_conf.he_bss_color.enabled = enable; 4676 ieee80211_link_info_change_notify(child, 4677 &child->deflink, 4678 BSS_CHANGED_HE_BSS_COLOR); 4679 } 4680 } 4681 } 4682 } 4683 4684 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4685 { 4686 struct ieee80211_local *local = sdata->local; 4687 u64 changed = 0; 4688 int err; 4689 4690 lockdep_assert_wiphy(local->hw.wiphy); 4691 4692 sdata->vif.bss_conf.color_change_active = false; 4693 4694 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4695 if (err) { 4696 cfg80211_color_change_aborted_notify(sdata->dev); 4697 return err; 4698 } 4699 4700 ieee80211_color_change_bss_config_notify(sdata, 4701 sdata->vif.bss_conf.color_change_color, 4702 1, changed); 4703 cfg80211_color_change_notify(sdata->dev); 4704 4705 return 0; 4706 } 4707 4708 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4709 struct wiphy_work *work) 4710 { 4711 struct ieee80211_sub_if_data *sdata = 4712 container_of(work, struct ieee80211_sub_if_data, 4713 deflink.color_change_finalize_work); 4714 struct ieee80211_local *local = sdata->local; 4715 4716 lockdep_assert_wiphy(local->hw.wiphy); 4717 4718 /* AP might have been stopped while waiting for the lock. */ 4719 if (!sdata->vif.bss_conf.color_change_active) 4720 return; 4721 4722 if (!ieee80211_sdata_running(sdata)) 4723 return; 4724 4725 ieee80211_color_change_finalize(sdata); 4726 } 4727 4728 void ieee80211_color_collision_detection_work(struct work_struct *work) 4729 { 4730 struct delayed_work *delayed_work = to_delayed_work(work); 4731 struct ieee80211_link_data *link = 4732 container_of(delayed_work, struct ieee80211_link_data, 4733 color_collision_detect_work); 4734 struct ieee80211_sub_if_data *sdata = link->sdata; 4735 4736 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4737 } 4738 4739 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4740 { 4741 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4742 4743 wiphy_work_queue(sdata->local->hw.wiphy, 4744 &sdata->deflink.color_change_finalize_work); 4745 } 4746 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4747 4748 void 4749 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4750 u64 color_bitmap, gfp_t gfp) 4751 { 4752 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4753 struct ieee80211_link_data *link = &sdata->deflink; 4754 4755 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4756 return; 4757 4758 if (delayed_work_pending(&link->color_collision_detect_work)) 4759 return; 4760 4761 link->color_bitmap = color_bitmap; 4762 /* queue the color collision detection event every 500 ms in order to 4763 * avoid sending too much netlink messages to userspace. 4764 */ 4765 ieee80211_queue_delayed_work(&sdata->local->hw, 4766 &link->color_collision_detect_work, 4767 msecs_to_jiffies(500)); 4768 } 4769 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4770 4771 static int 4772 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4773 struct cfg80211_color_change_settings *params) 4774 { 4775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4776 struct ieee80211_local *local = sdata->local; 4777 u64 changed = 0; 4778 int err; 4779 4780 lockdep_assert_wiphy(local->hw.wiphy); 4781 4782 if (sdata->vif.bss_conf.nontransmitted) 4783 return -EINVAL; 4784 4785 /* don't allow another color change if one is already active or if csa 4786 * is active 4787 */ 4788 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4789 err = -EBUSY; 4790 goto out; 4791 } 4792 4793 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4794 if (err) 4795 goto out; 4796 4797 sdata->vif.bss_conf.color_change_active = true; 4798 sdata->vif.bss_conf.color_change_color = params->color; 4799 4800 cfg80211_color_change_started_notify(sdata->dev, params->count); 4801 4802 if (changed) 4803 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4804 else 4805 /* if the beacon didn't change, we can finalize immediately */ 4806 ieee80211_color_change_finalize(sdata); 4807 4808 out: 4809 4810 return err; 4811 } 4812 4813 static int 4814 ieee80211_set_radar_background(struct wiphy *wiphy, 4815 struct cfg80211_chan_def *chandef) 4816 { 4817 struct ieee80211_local *local = wiphy_priv(wiphy); 4818 4819 if (!local->ops->set_radar_background) 4820 return -EOPNOTSUPP; 4821 4822 return local->ops->set_radar_background(&local->hw, chandef); 4823 } 4824 4825 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4826 struct wireless_dev *wdev, 4827 unsigned int link_id) 4828 { 4829 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4830 4831 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4832 4833 if (wdev->use_4addr) 4834 return -EOPNOTSUPP; 4835 4836 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4837 } 4838 4839 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4840 struct wireless_dev *wdev, 4841 unsigned int link_id) 4842 { 4843 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4844 4845 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4846 4847 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4848 } 4849 4850 static int sta_add_link_station(struct ieee80211_local *local, 4851 struct ieee80211_sub_if_data *sdata, 4852 struct link_station_parameters *params) 4853 { 4854 struct sta_info *sta; 4855 int ret; 4856 4857 sta = sta_info_get_bss(sdata, params->mld_mac); 4858 if (!sta) 4859 return -ENOENT; 4860 4861 if (!sta->sta.valid_links) 4862 return -EINVAL; 4863 4864 if (sta->sta.valid_links & BIT(params->link_id)) 4865 return -EALREADY; 4866 4867 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4868 if (ret) 4869 return ret; 4870 4871 ret = sta_link_apply_parameters(local, sta, true, params); 4872 if (ret) { 4873 ieee80211_sta_free_link(sta, params->link_id); 4874 return ret; 4875 } 4876 4877 /* ieee80211_sta_activate_link frees the link upon failure */ 4878 return ieee80211_sta_activate_link(sta, params->link_id); 4879 } 4880 4881 static int 4882 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4883 struct link_station_parameters *params) 4884 { 4885 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4886 struct ieee80211_local *local = wiphy_priv(wiphy); 4887 4888 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4889 4890 return sta_add_link_station(local, sdata, params); 4891 } 4892 4893 static int sta_mod_link_station(struct ieee80211_local *local, 4894 struct ieee80211_sub_if_data *sdata, 4895 struct link_station_parameters *params) 4896 { 4897 struct sta_info *sta; 4898 4899 sta = sta_info_get_bss(sdata, params->mld_mac); 4900 if (!sta) 4901 return -ENOENT; 4902 4903 if (!(sta->sta.valid_links & BIT(params->link_id))) 4904 return -EINVAL; 4905 4906 return sta_link_apply_parameters(local, sta, false, params); 4907 } 4908 4909 static int 4910 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4911 struct link_station_parameters *params) 4912 { 4913 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4914 struct ieee80211_local *local = wiphy_priv(wiphy); 4915 4916 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4917 4918 return sta_mod_link_station(local, sdata, params); 4919 } 4920 4921 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4922 struct link_station_del_parameters *params) 4923 { 4924 struct sta_info *sta; 4925 4926 sta = sta_info_get_bss(sdata, params->mld_mac); 4927 if (!sta) 4928 return -ENOENT; 4929 4930 if (!(sta->sta.valid_links & BIT(params->link_id))) 4931 return -EINVAL; 4932 4933 /* must not create a STA without links */ 4934 if (sta->sta.valid_links == BIT(params->link_id)) 4935 return -EINVAL; 4936 4937 ieee80211_sta_remove_link(sta, params->link_id); 4938 4939 return 0; 4940 } 4941 4942 static int 4943 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4944 struct link_station_del_parameters *params) 4945 { 4946 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4947 4948 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4949 4950 return sta_del_link_station(sdata, params); 4951 } 4952 4953 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4954 struct net_device *dev, 4955 struct cfg80211_set_hw_timestamp *hwts) 4956 { 4957 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4958 struct ieee80211_local *local = sdata->local; 4959 4960 if (!local->ops->set_hw_timestamp) 4961 return -EOPNOTSUPP; 4962 4963 if (!check_sdata_in_driver(sdata)) 4964 return -EIO; 4965 4966 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 4967 } 4968 4969 const struct cfg80211_ops mac80211_config_ops = { 4970 .add_virtual_intf = ieee80211_add_iface, 4971 .del_virtual_intf = ieee80211_del_iface, 4972 .change_virtual_intf = ieee80211_change_iface, 4973 .start_p2p_device = ieee80211_start_p2p_device, 4974 .stop_p2p_device = ieee80211_stop_p2p_device, 4975 .add_key = ieee80211_add_key, 4976 .del_key = ieee80211_del_key, 4977 .get_key = ieee80211_get_key, 4978 .set_default_key = ieee80211_config_default_key, 4979 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4980 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4981 .start_ap = ieee80211_start_ap, 4982 .change_beacon = ieee80211_change_beacon, 4983 .stop_ap = ieee80211_stop_ap, 4984 .add_station = ieee80211_add_station, 4985 .del_station = ieee80211_del_station, 4986 .change_station = ieee80211_change_station, 4987 .get_station = ieee80211_get_station, 4988 .dump_station = ieee80211_dump_station, 4989 .dump_survey = ieee80211_dump_survey, 4990 #ifdef CONFIG_MAC80211_MESH 4991 .add_mpath = ieee80211_add_mpath, 4992 .del_mpath = ieee80211_del_mpath, 4993 .change_mpath = ieee80211_change_mpath, 4994 .get_mpath = ieee80211_get_mpath, 4995 .dump_mpath = ieee80211_dump_mpath, 4996 .get_mpp = ieee80211_get_mpp, 4997 .dump_mpp = ieee80211_dump_mpp, 4998 .update_mesh_config = ieee80211_update_mesh_config, 4999 .get_mesh_config = ieee80211_get_mesh_config, 5000 .join_mesh = ieee80211_join_mesh, 5001 .leave_mesh = ieee80211_leave_mesh, 5002 #endif 5003 .join_ocb = ieee80211_join_ocb, 5004 .leave_ocb = ieee80211_leave_ocb, 5005 .change_bss = ieee80211_change_bss, 5006 .inform_bss = ieee80211_inform_bss, 5007 .set_txq_params = ieee80211_set_txq_params, 5008 .set_monitor_channel = ieee80211_set_monitor_channel, 5009 .suspend = ieee80211_suspend, 5010 .resume = ieee80211_resume, 5011 .scan = ieee80211_scan, 5012 .abort_scan = ieee80211_abort_scan, 5013 .sched_scan_start = ieee80211_sched_scan_start, 5014 .sched_scan_stop = ieee80211_sched_scan_stop, 5015 .auth = ieee80211_auth, 5016 .assoc = ieee80211_assoc, 5017 .deauth = ieee80211_deauth, 5018 .disassoc = ieee80211_disassoc, 5019 .join_ibss = ieee80211_join_ibss, 5020 .leave_ibss = ieee80211_leave_ibss, 5021 .set_mcast_rate = ieee80211_set_mcast_rate, 5022 .set_wiphy_params = ieee80211_set_wiphy_params, 5023 .set_tx_power = ieee80211_set_tx_power, 5024 .get_tx_power = ieee80211_get_tx_power, 5025 .rfkill_poll = ieee80211_rfkill_poll, 5026 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5027 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5028 .set_power_mgmt = ieee80211_set_power_mgmt, 5029 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5030 .remain_on_channel = ieee80211_remain_on_channel, 5031 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5032 .mgmt_tx = ieee80211_mgmt_tx, 5033 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5034 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5035 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5036 .update_mgmt_frame_registrations = 5037 ieee80211_update_mgmt_frame_registrations, 5038 .set_antenna = ieee80211_set_antenna, 5039 .get_antenna = ieee80211_get_antenna, 5040 .set_rekey_data = ieee80211_set_rekey_data, 5041 .tdls_oper = ieee80211_tdls_oper, 5042 .tdls_mgmt = ieee80211_tdls_mgmt, 5043 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5044 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5045 .probe_client = ieee80211_probe_client, 5046 .set_noack_map = ieee80211_set_noack_map, 5047 #ifdef CONFIG_PM 5048 .set_wakeup = ieee80211_set_wakeup, 5049 #endif 5050 .get_channel = ieee80211_cfg_get_channel, 5051 .start_radar_detection = ieee80211_start_radar_detection, 5052 .end_cac = ieee80211_end_cac, 5053 .channel_switch = ieee80211_channel_switch, 5054 .set_qos_map = ieee80211_set_qos_map, 5055 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5056 .add_tx_ts = ieee80211_add_tx_ts, 5057 .del_tx_ts = ieee80211_del_tx_ts, 5058 .start_nan = ieee80211_start_nan, 5059 .stop_nan = ieee80211_stop_nan, 5060 .nan_change_conf = ieee80211_nan_change_conf, 5061 .add_nan_func = ieee80211_add_nan_func, 5062 .del_nan_func = ieee80211_del_nan_func, 5063 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5064 .tx_control_port = ieee80211_tx_control_port, 5065 .get_txq_stats = ieee80211_get_txq_stats, 5066 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5067 .start_pmsr = ieee80211_start_pmsr, 5068 .abort_pmsr = ieee80211_abort_pmsr, 5069 .probe_mesh_link = ieee80211_probe_mesh_link, 5070 .set_tid_config = ieee80211_set_tid_config, 5071 .reset_tid_config = ieee80211_reset_tid_config, 5072 .set_sar_specs = ieee80211_set_sar_specs, 5073 .color_change = ieee80211_color_change, 5074 .set_radar_background = ieee80211_set_radar_background, 5075 .add_intf_link = ieee80211_add_intf_link, 5076 .del_intf_link = ieee80211_del_intf_link, 5077 .add_link_station = ieee80211_add_link_station, 5078 .mod_link_station = ieee80211_mod_link_station, 5079 .del_link_station = ieee80211_del_link_station, 5080 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5081 }; 5082