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) 2018-2025 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_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_ACTIVE to be changed 96 * while the interface is up. 97 * Else we would need to add a lot of cruft 98 * to update everything: 99 * monitor and all fif_* counters 100 * reconfigure hardware 101 */ 102 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 103 return -EBUSY; 104 } 105 106 /* also validate MU-MIMO change */ 107 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 108 monitor_sdata = sdata; 109 else 110 monitor_sdata = wiphy_dereference(local->hw.wiphy, 111 local->monitor_sdata); 112 113 if (!monitor_sdata && 114 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 115 return -EOPNOTSUPP; 116 117 /* apply all changes now - no failures allowed */ 118 119 if (monitor_sdata && 120 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 121 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))) 122 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 123 124 if (params->flags) { 125 if (ieee80211_sdata_running(sdata)) { 126 ieee80211_adjust_monitor_flags(sdata, -1); 127 sdata->u.mntr.flags = params->flags; 128 ieee80211_adjust_monitor_flags(sdata, 1); 129 130 ieee80211_configure_filter(local); 131 } else { 132 /* 133 * Because the interface is down, ieee80211_do_stop 134 * and ieee80211_do_open take care of "everything" 135 * mentioned in the comment above. 136 */ 137 sdata->u.mntr.flags = params->flags; 138 } 139 } 140 141 return 0; 142 } 143 144 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 145 struct cfg80211_mbssid_config *params, 146 struct ieee80211_bss_conf *link_conf) 147 { 148 struct ieee80211_sub_if_data *tx_sdata; 149 struct ieee80211_bss_conf *old; 150 151 link_conf->bssid_index = 0; 152 link_conf->nontransmitted = false; 153 link_conf->ema_ap = false; 154 link_conf->bssid_indicator = 0; 155 156 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev) 157 return -EINVAL; 158 159 old = sdata_dereference(link_conf->tx_bss_conf, sdata); 160 if (old) 161 return -EALREADY; 162 163 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev); 164 if (!tx_sdata) 165 return -EINVAL; 166 167 if (tx_sdata == sdata) { 168 rcu_assign_pointer(link_conf->tx_bss_conf, link_conf); 169 } else { 170 struct ieee80211_bss_conf *tx_bss_conf; 171 172 tx_bss_conf = sdata_dereference(tx_sdata->vif.link_conf[params->tx_link_id], 173 sdata); 174 if (rcu_access_pointer(tx_bss_conf->tx_bss_conf) != tx_bss_conf) 175 return -EINVAL; 176 177 rcu_assign_pointer(link_conf->tx_bss_conf, tx_bss_conf); 178 179 link_conf->nontransmitted = true; 180 link_conf->bssid_index = params->index; 181 link_conf->bssid_indicator = tx_bss_conf->bssid_indicator; 182 } 183 if (params->ema) 184 link_conf->ema_ap = true; 185 186 return 0; 187 } 188 189 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 190 const char *name, 191 unsigned char name_assign_type, 192 enum nl80211_iftype type, 193 struct vif_params *params) 194 { 195 struct ieee80211_local *local = wiphy_priv(wiphy); 196 struct wireless_dev *wdev; 197 struct ieee80211_sub_if_data *sdata; 198 int err; 199 200 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 201 if (err) 202 return ERR_PTR(err); 203 204 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 205 206 if (type == NL80211_IFTYPE_MONITOR) { 207 err = ieee80211_set_mon_options(sdata, params); 208 if (err) { 209 ieee80211_if_remove(sdata); 210 return NULL; 211 } 212 } 213 214 /* Let the driver know that an interface is going to be added. 215 * Indicate so only for interface types that will be added to the 216 * driver. 217 */ 218 switch (type) { 219 case NL80211_IFTYPE_AP_VLAN: 220 break; 221 case NL80211_IFTYPE_MONITOR: 222 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 223 !(params->flags & MONITOR_FLAG_ACTIVE)) 224 break; 225 fallthrough; 226 default: 227 drv_prep_add_interface(local, 228 ieee80211_vif_type_p2p(&sdata->vif)); 229 break; 230 } 231 232 return wdev; 233 } 234 235 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 236 { 237 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 238 239 return 0; 240 } 241 242 static int ieee80211_change_iface(struct wiphy *wiphy, 243 struct net_device *dev, 244 enum nl80211_iftype type, 245 struct vif_params *params) 246 { 247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 248 struct ieee80211_local *local = sdata->local; 249 struct sta_info *sta; 250 int ret; 251 252 lockdep_assert_wiphy(local->hw.wiphy); 253 254 ret = ieee80211_if_change_type(sdata, type); 255 if (ret) 256 return ret; 257 258 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 259 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 260 ieee80211_check_fast_rx_iface(sdata); 261 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 262 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 263 264 if (params->use_4addr == ifmgd->use_4addr) 265 return 0; 266 267 /* FIXME: no support for 4-addr MLO yet */ 268 if (ieee80211_vif_is_mld(&sdata->vif)) 269 return -EOPNOTSUPP; 270 271 sdata->u.mgd.use_4addr = params->use_4addr; 272 if (!ifmgd->associated) 273 return 0; 274 275 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 276 if (sta) 277 drv_sta_set_4addr(local, sdata, &sta->sta, 278 params->use_4addr); 279 280 if (params->use_4addr) 281 ieee80211_send_4addr_nullfunc(local, sdata); 282 } 283 284 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 285 ret = ieee80211_set_mon_options(sdata, params); 286 if (ret) 287 return ret; 288 } 289 290 return 0; 291 } 292 293 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 294 struct wireless_dev *wdev) 295 { 296 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 297 int ret; 298 299 lockdep_assert_wiphy(sdata->local->hw.wiphy); 300 301 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 302 if (ret < 0) 303 return ret; 304 305 return ieee80211_do_open(wdev, true); 306 } 307 308 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 309 struct wireless_dev *wdev) 310 { 311 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 312 } 313 314 static void ieee80211_nan_conf_free(struct cfg80211_nan_conf *conf) 315 { 316 kfree(conf->cluster_id); 317 kfree(conf->extra_nan_attrs); 318 kfree(conf->vendor_elems); 319 memset(conf, 0, sizeof(*conf)); 320 } 321 322 static void ieee80211_stop_nan(struct wiphy *wiphy, 323 struct wireless_dev *wdev) 324 { 325 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 326 327 if (!sdata->u.nan.started) 328 return; 329 330 drv_stop_nan(sdata->local, sdata); 331 sdata->u.nan.started = false; 332 333 ieee80211_nan_conf_free(&sdata->u.nan.conf); 334 335 ieee80211_sdata_stop(sdata); 336 ieee80211_recalc_idle(sdata->local); 337 } 338 339 static int ieee80211_nan_conf_copy(struct cfg80211_nan_conf *dst, 340 struct cfg80211_nan_conf *src, 341 u32 changes) 342 { 343 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 344 dst->master_pref = src->master_pref; 345 346 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 347 dst->bands = src->bands; 348 349 if (changes & CFG80211_NAN_CONF_CHANGED_CONFIG) { 350 dst->scan_period = src->scan_period; 351 dst->scan_dwell_time = src->scan_dwell_time; 352 dst->discovery_beacon_interval = 353 src->discovery_beacon_interval; 354 dst->enable_dw_notification = src->enable_dw_notification; 355 memcpy(&dst->band_cfgs, &src->band_cfgs, 356 sizeof(dst->band_cfgs)); 357 358 kfree(dst->cluster_id); 359 dst->cluster_id = NULL; 360 361 kfree(dst->extra_nan_attrs); 362 dst->extra_nan_attrs = NULL; 363 dst->extra_nan_attrs_len = 0; 364 365 kfree(dst->vendor_elems); 366 dst->vendor_elems = NULL; 367 dst->vendor_elems_len = 0; 368 369 if (src->cluster_id) { 370 dst->cluster_id = kmemdup(src->cluster_id, ETH_ALEN, 371 GFP_KERNEL); 372 if (!dst->cluster_id) 373 goto no_mem; 374 } 375 376 if (src->extra_nan_attrs && src->extra_nan_attrs_len) { 377 dst->extra_nan_attrs = kmemdup(src->extra_nan_attrs, 378 src->extra_nan_attrs_len, 379 GFP_KERNEL); 380 if (!dst->extra_nan_attrs) 381 goto no_mem; 382 383 dst->extra_nan_attrs_len = src->extra_nan_attrs_len; 384 } 385 386 if (src->vendor_elems && src->vendor_elems_len) { 387 dst->vendor_elems = kmemdup(src->vendor_elems, 388 src->vendor_elems_len, 389 GFP_KERNEL); 390 if (!dst->vendor_elems) 391 goto no_mem; 392 393 dst->vendor_elems_len = src->vendor_elems_len; 394 } 395 } 396 397 return 0; 398 399 no_mem: 400 ieee80211_nan_conf_free(dst); 401 return -ENOMEM; 402 } 403 404 static int ieee80211_start_nan(struct wiphy *wiphy, 405 struct wireless_dev *wdev, 406 struct cfg80211_nan_conf *conf) 407 { 408 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 409 int ret; 410 411 lockdep_assert_wiphy(sdata->local->hw.wiphy); 412 413 if (sdata->u.nan.started) 414 return -EALREADY; 415 416 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 417 if (ret < 0) 418 return ret; 419 420 ret = ieee80211_do_open(wdev, true); 421 if (ret) 422 return ret; 423 424 ret = drv_start_nan(sdata->local, sdata, conf); 425 if (ret) { 426 ieee80211_sdata_stop(sdata); 427 return ret; 428 } 429 430 sdata->u.nan.started = true; 431 ieee80211_recalc_idle(sdata->local); 432 433 ret = ieee80211_nan_conf_copy(&sdata->u.nan.conf, conf, 0xFFFFFFFF); 434 if (ret) { 435 ieee80211_stop_nan(wiphy, wdev); 436 return ret; 437 } 438 439 return 0; 440 } 441 442 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 443 struct wireless_dev *wdev, 444 struct cfg80211_nan_conf *conf, 445 u32 changes) 446 { 447 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 448 struct cfg80211_nan_conf new_conf = {}; 449 int ret = 0; 450 451 if (sdata->vif.type != NL80211_IFTYPE_NAN) 452 return -EOPNOTSUPP; 453 454 if (!ieee80211_sdata_running(sdata)) 455 return -ENETDOWN; 456 457 if (!changes) 458 return 0; 459 460 /* First make a full copy of the previous configuration and then apply 461 * the changes. This might be a little wasteful, but it is simpler. 462 */ 463 ret = ieee80211_nan_conf_copy(&new_conf, &sdata->u.nan.conf, 464 0xFFFFFFFF); 465 if (ret < 0) 466 return ret; 467 468 ret = ieee80211_nan_conf_copy(&new_conf, conf, changes); 469 if (ret < 0) 470 return ret; 471 472 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 473 if (ret) { 474 ieee80211_nan_conf_free(&new_conf); 475 } else { 476 ieee80211_nan_conf_free(&sdata->u.nan.conf); 477 sdata->u.nan.conf = new_conf; 478 } 479 480 return ret; 481 } 482 483 static int ieee80211_add_nan_func(struct wiphy *wiphy, 484 struct wireless_dev *wdev, 485 struct cfg80211_nan_func *nan_func) 486 { 487 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 488 int ret; 489 490 if (sdata->vif.type != NL80211_IFTYPE_NAN) 491 return -EOPNOTSUPP; 492 493 if (!ieee80211_sdata_running(sdata)) 494 return -ENETDOWN; 495 496 spin_lock_bh(&sdata->u.nan.func_lock); 497 498 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 499 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 500 GFP_ATOMIC); 501 spin_unlock_bh(&sdata->u.nan.func_lock); 502 503 if (ret < 0) 504 return ret; 505 506 nan_func->instance_id = ret; 507 508 WARN_ON(nan_func->instance_id == 0); 509 510 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 511 if (ret) { 512 spin_lock_bh(&sdata->u.nan.func_lock); 513 idr_remove(&sdata->u.nan.function_inst_ids, 514 nan_func->instance_id); 515 spin_unlock_bh(&sdata->u.nan.func_lock); 516 } 517 518 return ret; 519 } 520 521 static struct cfg80211_nan_func * 522 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 523 u64 cookie) 524 { 525 struct cfg80211_nan_func *func; 526 int id; 527 528 lockdep_assert_held(&sdata->u.nan.func_lock); 529 530 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 531 if (func->cookie == cookie) 532 return func; 533 } 534 535 return NULL; 536 } 537 538 static void ieee80211_del_nan_func(struct wiphy *wiphy, 539 struct wireless_dev *wdev, u64 cookie) 540 { 541 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 542 struct cfg80211_nan_func *func; 543 u8 instance_id = 0; 544 545 if (sdata->vif.type != NL80211_IFTYPE_NAN || 546 !ieee80211_sdata_running(sdata)) 547 return; 548 549 spin_lock_bh(&sdata->u.nan.func_lock); 550 551 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 552 if (func) 553 instance_id = func->instance_id; 554 555 spin_unlock_bh(&sdata->u.nan.func_lock); 556 557 if (instance_id) 558 drv_del_nan_func(sdata->local, sdata, instance_id); 559 } 560 561 static int ieee80211_set_noack_map(struct wiphy *wiphy, 562 struct net_device *dev, 563 u16 noack_map) 564 { 565 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 566 567 sdata->noack_map = noack_map; 568 569 ieee80211_check_fast_xmit_iface(sdata); 570 571 return 0; 572 } 573 574 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 575 const u8 *mac_addr, u8 key_idx) 576 { 577 struct ieee80211_local *local = sdata->local; 578 struct ieee80211_key *key; 579 struct sta_info *sta; 580 int ret = -EINVAL; 581 582 if (!wiphy_ext_feature_isset(local->hw.wiphy, 583 NL80211_EXT_FEATURE_EXT_KEY_ID)) 584 return -EINVAL; 585 586 sta = sta_info_get_bss(sdata, mac_addr); 587 588 if (!sta) 589 return -EINVAL; 590 591 if (sta->ptk_idx == key_idx) 592 return 0; 593 594 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 595 596 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 597 ret = ieee80211_set_tx_key(key); 598 599 return ret; 600 } 601 602 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 603 int link_id, u8 key_idx, bool pairwise, 604 const u8 *mac_addr, struct key_params *params) 605 { 606 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 607 struct ieee80211_link_data *link = 608 ieee80211_link_or_deflink(sdata, link_id, false); 609 struct ieee80211_local *local = sdata->local; 610 struct sta_info *sta = NULL; 611 struct ieee80211_key *key; 612 int err; 613 614 lockdep_assert_wiphy(local->hw.wiphy); 615 616 if (!ieee80211_sdata_running(sdata)) 617 return -ENETDOWN; 618 619 if (IS_ERR(link)) 620 return PTR_ERR(link); 621 622 if (WARN_ON(pairwise && link_id >= 0)) 623 return -EINVAL; 624 625 if (pairwise && params->mode == NL80211_KEY_SET_TX) 626 return ieee80211_set_tx(sdata, mac_addr, key_idx); 627 628 /* reject WEP and TKIP keys if WEP failed to initialize */ 629 switch (params->cipher) { 630 case WLAN_CIPHER_SUITE_WEP40: 631 case WLAN_CIPHER_SUITE_TKIP: 632 case WLAN_CIPHER_SUITE_WEP104: 633 if (link_id >= 0) 634 return -EINVAL; 635 if (WARN_ON_ONCE(fips_enabled)) 636 return -EINVAL; 637 break; 638 default: 639 break; 640 } 641 642 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 643 params->key, params->seq_len, params->seq); 644 if (IS_ERR(key)) 645 return PTR_ERR(key); 646 647 if (pairwise) { 648 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 649 key->conf.link_id = -1; 650 } else { 651 key->conf.link_id = link->link_id; 652 } 653 654 if (params->mode == NL80211_KEY_NO_TX) 655 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 656 657 if (mac_addr) { 658 sta = sta_info_get_bss(sdata, mac_addr); 659 /* 660 * The ASSOC test makes sure the driver is ready to 661 * receive the key. When wpa_supplicant has roamed 662 * using FT, it attempts to set the key before 663 * association has completed, this rejects that attempt 664 * so it will set the key again after association. 665 * 666 * TODO: accept the key if we have a station entry and 667 * add it to the device after the station. 668 */ 669 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 670 ieee80211_key_free_unused(key); 671 return -ENOENT; 672 } 673 } 674 675 switch (sdata->vif.type) { 676 case NL80211_IFTYPE_STATION: 677 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 678 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 679 break; 680 case NL80211_IFTYPE_AP: 681 case NL80211_IFTYPE_AP_VLAN: 682 /* Keys without a station are used for TX only */ 683 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 684 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 685 break; 686 case NL80211_IFTYPE_ADHOC: 687 /* no MFP (yet) */ 688 break; 689 case NL80211_IFTYPE_MESH_POINT: 690 #ifdef CONFIG_MAC80211_MESH 691 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 692 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 693 break; 694 #endif 695 case NL80211_IFTYPE_WDS: 696 case NL80211_IFTYPE_MONITOR: 697 case NL80211_IFTYPE_P2P_DEVICE: 698 case NL80211_IFTYPE_NAN: 699 case NL80211_IFTYPE_UNSPECIFIED: 700 case NUM_NL80211_IFTYPES: 701 case NL80211_IFTYPE_P2P_CLIENT: 702 case NL80211_IFTYPE_P2P_GO: 703 case NL80211_IFTYPE_OCB: 704 /* shouldn't happen */ 705 WARN_ON_ONCE(1); 706 break; 707 } 708 709 err = ieee80211_key_link(key, link, sta); 710 /* KRACK protection, shouldn't happen but just silently accept key */ 711 if (err == -EALREADY) 712 err = 0; 713 714 return err; 715 } 716 717 static struct ieee80211_key * 718 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 719 u8 key_idx, bool pairwise, const u8 *mac_addr) 720 { 721 struct ieee80211_local *local __maybe_unused = sdata->local; 722 struct ieee80211_link_data *link = &sdata->deflink; 723 struct ieee80211_key *key; 724 725 if (link_id >= 0) { 726 link = sdata_dereference(sdata->link[link_id], sdata); 727 if (!link) 728 return NULL; 729 } 730 731 if (mac_addr) { 732 struct sta_info *sta; 733 struct link_sta_info *link_sta; 734 735 sta = sta_info_get_bss(sdata, mac_addr); 736 if (!sta) 737 return NULL; 738 739 if (link_id >= 0) { 740 link_sta = rcu_dereference_check(sta->link[link_id], 741 lockdep_is_held(&local->hw.wiphy->mtx)); 742 if (!link_sta) 743 return NULL; 744 } else { 745 link_sta = &sta->deflink; 746 } 747 748 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 749 return wiphy_dereference(local->hw.wiphy, 750 sta->ptk[key_idx]); 751 752 if (!pairwise && 753 key_idx < NUM_DEFAULT_KEYS + 754 NUM_DEFAULT_MGMT_KEYS + 755 NUM_DEFAULT_BEACON_KEYS) 756 return wiphy_dereference(local->hw.wiphy, 757 link_sta->gtk[key_idx]); 758 759 return NULL; 760 } 761 762 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 763 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 764 765 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 766 if (key) 767 return key; 768 769 /* or maybe it was a WEP key */ 770 if (key_idx < NUM_DEFAULT_KEYS) 771 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 772 773 return NULL; 774 } 775 776 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 777 int link_id, u8 key_idx, bool pairwise, 778 const u8 *mac_addr) 779 { 780 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 781 struct ieee80211_local *local = sdata->local; 782 struct ieee80211_key *key; 783 784 lockdep_assert_wiphy(local->hw.wiphy); 785 786 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 787 if (!key) 788 return -ENOENT; 789 790 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 791 792 return 0; 793 } 794 795 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 796 int link_id, u8 key_idx, bool pairwise, 797 const u8 *mac_addr, void *cookie, 798 void (*callback)(void *cookie, 799 struct key_params *params)) 800 { 801 struct ieee80211_sub_if_data *sdata; 802 u8 seq[6] = {0}; 803 struct key_params params; 804 struct ieee80211_key *key; 805 u64 pn64; 806 u32 iv32; 807 u16 iv16; 808 int err = -ENOENT; 809 struct ieee80211_key_seq kseq = {}; 810 811 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 812 813 rcu_read_lock(); 814 815 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 816 if (!key) 817 goto out; 818 819 memset(¶ms, 0, sizeof(params)); 820 821 params.cipher = key->conf.cipher; 822 823 switch (key->conf.cipher) { 824 case WLAN_CIPHER_SUITE_TKIP: 825 pn64 = atomic64_read(&key->conf.tx_pn); 826 iv32 = TKIP_PN_TO_IV32(pn64); 827 iv16 = TKIP_PN_TO_IV16(pn64); 828 829 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 830 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 831 drv_get_key_seq(sdata->local, key, &kseq); 832 iv32 = kseq.tkip.iv32; 833 iv16 = kseq.tkip.iv16; 834 } 835 836 seq[0] = iv16 & 0xff; 837 seq[1] = (iv16 >> 8) & 0xff; 838 seq[2] = iv32 & 0xff; 839 seq[3] = (iv32 >> 8) & 0xff; 840 seq[4] = (iv32 >> 16) & 0xff; 841 seq[5] = (iv32 >> 24) & 0xff; 842 params.seq = seq; 843 params.seq_len = 6; 844 break; 845 case WLAN_CIPHER_SUITE_CCMP: 846 case WLAN_CIPHER_SUITE_CCMP_256: 847 case WLAN_CIPHER_SUITE_AES_CMAC: 848 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 849 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 850 offsetof(typeof(kseq), aes_cmac)); 851 fallthrough; 852 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 853 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 854 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 855 offsetof(typeof(kseq), aes_gmac)); 856 fallthrough; 857 case WLAN_CIPHER_SUITE_GCMP: 858 case WLAN_CIPHER_SUITE_GCMP_256: 859 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 860 offsetof(typeof(kseq), gcmp)); 861 862 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 863 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 864 drv_get_key_seq(sdata->local, key, &kseq); 865 memcpy(seq, kseq.ccmp.pn, 6); 866 } else { 867 pn64 = atomic64_read(&key->conf.tx_pn); 868 seq[0] = pn64; 869 seq[1] = pn64 >> 8; 870 seq[2] = pn64 >> 16; 871 seq[3] = pn64 >> 24; 872 seq[4] = pn64 >> 32; 873 seq[5] = pn64 >> 40; 874 } 875 params.seq = seq; 876 params.seq_len = 6; 877 break; 878 default: 879 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 880 break; 881 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 882 break; 883 drv_get_key_seq(sdata->local, key, &kseq); 884 params.seq = kseq.hw.seq; 885 params.seq_len = kseq.hw.seq_len; 886 break; 887 } 888 889 callback(cookie, ¶ms); 890 err = 0; 891 892 out: 893 rcu_read_unlock(); 894 return err; 895 } 896 897 static int ieee80211_config_default_key(struct wiphy *wiphy, 898 struct net_device *dev, 899 int link_id, u8 key_idx, bool uni, 900 bool multi) 901 { 902 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 903 struct ieee80211_link_data *link = 904 ieee80211_link_or_deflink(sdata, link_id, false); 905 906 if (IS_ERR(link)) 907 return PTR_ERR(link); 908 909 ieee80211_set_default_key(link, key_idx, uni, multi); 910 911 return 0; 912 } 913 914 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 915 struct net_device *dev, 916 int link_id, u8 key_idx) 917 { 918 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 919 struct ieee80211_link_data *link = 920 ieee80211_link_or_deflink(sdata, link_id, true); 921 922 if (IS_ERR(link)) 923 return PTR_ERR(link); 924 925 ieee80211_set_default_mgmt_key(link, key_idx); 926 927 return 0; 928 } 929 930 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 931 struct net_device *dev, 932 int link_id, u8 key_idx) 933 { 934 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 935 struct ieee80211_link_data *link = 936 ieee80211_link_or_deflink(sdata, link_id, true); 937 938 if (IS_ERR(link)) 939 return PTR_ERR(link); 940 941 ieee80211_set_default_beacon_key(link, key_idx); 942 943 return 0; 944 } 945 946 void sta_set_rate_info_tx(struct sta_info *sta, 947 const struct ieee80211_tx_rate *rate, 948 struct rate_info *rinfo) 949 { 950 rinfo->flags = 0; 951 if (rate->flags & IEEE80211_TX_RC_MCS) { 952 rinfo->flags |= RATE_INFO_FLAGS_MCS; 953 rinfo->mcs = rate->idx; 954 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 955 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 956 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 957 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 958 } else { 959 struct ieee80211_supported_band *sband; 960 961 sband = ieee80211_get_sband(sta->sdata); 962 WARN_ON_ONCE(sband && !sband->bitrates); 963 if (sband && sband->bitrates) 964 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 965 } 966 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 967 rinfo->bw = RATE_INFO_BW_40; 968 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 969 rinfo->bw = RATE_INFO_BW_80; 970 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 971 rinfo->bw = RATE_INFO_BW_160; 972 else 973 rinfo->bw = RATE_INFO_BW_20; 974 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 975 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 976 } 977 978 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 979 int idx, u8 *mac, struct station_info *sinfo) 980 { 981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 982 struct ieee80211_local *local = sdata->local; 983 struct sta_info *sta; 984 int ret = -ENOENT; 985 986 lockdep_assert_wiphy(local->hw.wiphy); 987 988 sta = sta_info_get_by_idx(sdata, idx); 989 if (sta) { 990 ret = 0; 991 memcpy(mac, sta->sta.addr, ETH_ALEN); 992 sta_set_sinfo(sta, sinfo, true); 993 994 /* Add accumulated removed link data to sinfo data for 995 * consistency for MLO 996 */ 997 if (sinfo->valid_links) 998 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 999 1000 } 1001 1002 return ret; 1003 } 1004 1005 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1006 int idx, struct survey_info *survey) 1007 { 1008 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1009 1010 return drv_get_survey(local, idx, survey); 1011 } 1012 1013 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1014 const u8 *mac, struct station_info *sinfo) 1015 { 1016 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1017 struct ieee80211_local *local = sdata->local; 1018 struct sta_info *sta; 1019 int ret = -ENOENT; 1020 1021 lockdep_assert_wiphy(local->hw.wiphy); 1022 1023 sta = sta_info_get_bss(sdata, mac); 1024 if (sta) { 1025 ret = 0; 1026 sta_set_sinfo(sta, sinfo, true); 1027 1028 /* Add accumulated removed link data to sinfo data for 1029 * consistency for MLO 1030 */ 1031 if (sinfo->valid_links) 1032 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 1033 } 1034 1035 return ret; 1036 } 1037 1038 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 1039 struct net_device *dev, 1040 struct cfg80211_chan_def *chandef) 1041 { 1042 struct ieee80211_local *local = wiphy_priv(wiphy); 1043 struct ieee80211_sub_if_data *sdata; 1044 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 1045 int ret; 1046 1047 lockdep_assert_wiphy(local->hw.wiphy); 1048 1049 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1050 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 1051 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 1052 &chanreq.oper)) 1053 return 0; 1054 1055 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 1056 if (!sdata) 1057 goto done; 1058 } 1059 1060 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 1061 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 1062 &chanreq.oper)) 1063 return 0; 1064 1065 ieee80211_link_release_channel(&sdata->deflink); 1066 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 1067 IEEE80211_CHANCTX_SHARED); 1068 if (ret) 1069 return ret; 1070 done: 1071 local->monitor_chanreq = chanreq; 1072 return 0; 1073 } 1074 1075 static int 1076 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 1077 const u8 *resp, size_t resp_len, 1078 const struct ieee80211_csa_settings *csa, 1079 const struct ieee80211_color_change_settings *cca, 1080 struct ieee80211_link_data *link) 1081 { 1082 struct probe_resp *new, *old; 1083 1084 if (!resp || !resp_len) 1085 return 1; 1086 1087 old = sdata_dereference(link->u.ap.probe_resp, sdata); 1088 1089 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 1090 if (!new) 1091 return -ENOMEM; 1092 1093 new->len = resp_len; 1094 memcpy(new->data, resp, resp_len); 1095 1096 if (csa) 1097 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 1098 csa->n_counter_offsets_presp * 1099 sizeof(new->cntdwn_counter_offsets[0])); 1100 else if (cca) 1101 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 1102 1103 rcu_assign_pointer(link->u.ap.probe_resp, new); 1104 if (old) 1105 kfree_rcu(old, rcu_head); 1106 1107 return 0; 1108 } 1109 1110 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 1111 struct cfg80211_fils_discovery *params, 1112 struct ieee80211_link_data *link, 1113 struct ieee80211_bss_conf *link_conf, 1114 u64 *changed) 1115 { 1116 struct fils_discovery_data *new, *old = NULL; 1117 struct ieee80211_fils_discovery *fd; 1118 1119 if (!params->update) 1120 return 0; 1121 1122 fd = &link_conf->fils_discovery; 1123 fd->min_interval = params->min_interval; 1124 fd->max_interval = params->max_interval; 1125 1126 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 1127 if (old) 1128 kfree_rcu(old, rcu_head); 1129 1130 if (params->tmpl && params->tmpl_len) { 1131 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1132 if (!new) 1133 return -ENOMEM; 1134 new->len = params->tmpl_len; 1135 memcpy(new->data, params->tmpl, params->tmpl_len); 1136 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1137 } else { 1138 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1139 } 1140 1141 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1142 return 0; 1143 } 1144 1145 static int 1146 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1147 struct cfg80211_unsol_bcast_probe_resp *params, 1148 struct ieee80211_link_data *link, 1149 struct ieee80211_bss_conf *link_conf, 1150 u64 *changed) 1151 { 1152 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1153 1154 if (!params->update) 1155 return 0; 1156 1157 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1158 1159 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1160 if (old) 1161 kfree_rcu(old, rcu_head); 1162 1163 if (params->tmpl && params->tmpl_len) { 1164 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1165 if (!new) 1166 return -ENOMEM; 1167 new->len = params->tmpl_len; 1168 memcpy(new->data, params->tmpl, params->tmpl_len); 1169 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1170 } else { 1171 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1172 } 1173 1174 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1175 return 0; 1176 } 1177 1178 static int 1179 ieee80211_set_s1g_short_beacon(struct ieee80211_sub_if_data *sdata, 1180 struct ieee80211_link_data *link, 1181 struct cfg80211_s1g_short_beacon *params) 1182 { 1183 struct s1g_short_beacon_data *new; 1184 struct s1g_short_beacon_data *old = 1185 sdata_dereference(link->u.ap.s1g_short_beacon, sdata); 1186 size_t new_len = 1187 sizeof(*new) + params->short_head_len + params->short_tail_len; 1188 1189 if (!params->update) 1190 return 0; 1191 1192 if (!params->short_head) 1193 return -EINVAL; 1194 1195 new = kzalloc(new_len, GFP_KERNEL); 1196 if (!new) 1197 return -ENOMEM; 1198 1199 /* Memory layout: | struct | head | tail | */ 1200 new->short_head = (u8 *)new + sizeof(*new); 1201 new->short_head_len = params->short_head_len; 1202 memcpy(new->short_head, params->short_head, params->short_head_len); 1203 1204 if (params->short_tail) { 1205 new->short_tail = new->short_head + params->short_head_len; 1206 new->short_tail_len = params->short_tail_len; 1207 memcpy(new->short_tail, params->short_tail, 1208 params->short_tail_len); 1209 } 1210 1211 rcu_assign_pointer(link->u.ap.s1g_short_beacon, new); 1212 1213 if (old) 1214 kfree_rcu(old, rcu_head); 1215 1216 return 0; 1217 } 1218 1219 static int ieee80211_set_ftm_responder_params( 1220 struct ieee80211_sub_if_data *sdata, 1221 const u8 *lci, size_t lci_len, 1222 const u8 *civicloc, size_t civicloc_len, 1223 struct ieee80211_bss_conf *link_conf) 1224 { 1225 struct ieee80211_ftm_responder_params *new, *old; 1226 u8 *pos; 1227 int len; 1228 1229 if (!lci_len && !civicloc_len) 1230 return 0; 1231 1232 old = link_conf->ftmr_params; 1233 len = lci_len + civicloc_len; 1234 1235 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1236 if (!new) 1237 return -ENOMEM; 1238 1239 pos = (u8 *)(new + 1); 1240 if (lci_len) { 1241 new->lci_len = lci_len; 1242 new->lci = pos; 1243 memcpy(pos, lci, lci_len); 1244 pos += lci_len; 1245 } 1246 1247 if (civicloc_len) { 1248 new->civicloc_len = civicloc_len; 1249 new->civicloc = pos; 1250 memcpy(pos, civicloc, civicloc_len); 1251 pos += civicloc_len; 1252 } 1253 1254 link_conf->ftmr_params = new; 1255 kfree(old); 1256 1257 return 0; 1258 } 1259 1260 static int 1261 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1262 struct cfg80211_mbssid_elems *src) 1263 { 1264 int i, offset = 0; 1265 1266 dst->cnt = src->cnt; 1267 for (i = 0; i < src->cnt; i++) { 1268 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1269 dst->elem[i].len = src->elem[i].len; 1270 dst->elem[i].data = pos + offset; 1271 offset += dst->elem[i].len; 1272 } 1273 1274 return offset; 1275 } 1276 1277 static int 1278 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1279 struct cfg80211_rnr_elems *src) 1280 { 1281 int i, offset = 0; 1282 1283 dst->cnt = src->cnt; 1284 for (i = 0; i < src->cnt; i++) { 1285 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1286 dst->elem[i].len = src->elem[i].len; 1287 dst->elem[i].data = pos + offset; 1288 offset += dst->elem[i].len; 1289 } 1290 1291 return offset; 1292 } 1293 1294 static int 1295 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1296 struct ieee80211_link_data *link, 1297 struct cfg80211_beacon_data *params, 1298 const struct ieee80211_csa_settings *csa, 1299 const struct ieee80211_color_change_settings *cca, 1300 u64 *changed) 1301 { 1302 struct cfg80211_mbssid_elems *mbssid = NULL; 1303 struct cfg80211_rnr_elems *rnr = NULL; 1304 struct beacon_data *new, *old; 1305 int new_head_len, new_tail_len; 1306 int size, err; 1307 u64 _changed = BSS_CHANGED_BEACON; 1308 struct ieee80211_bss_conf *link_conf = link->conf; 1309 1310 old = sdata_dereference(link->u.ap.beacon, sdata); 1311 1312 /* Need to have a beacon head if we don't have one yet */ 1313 if (!params->head && !old) 1314 return -EINVAL; 1315 1316 /* new or old head? */ 1317 if (params->head) 1318 new_head_len = params->head_len; 1319 else 1320 new_head_len = old->head_len; 1321 1322 /* new or old tail? */ 1323 if (params->tail || !old) 1324 /* params->tail_len will be zero for !params->tail */ 1325 new_tail_len = params->tail_len; 1326 else 1327 new_tail_len = old->tail_len; 1328 1329 size = sizeof(*new) + new_head_len + new_tail_len; 1330 1331 /* new or old multiple BSSID elements? */ 1332 if (params->mbssid_ies) { 1333 mbssid = params->mbssid_ies; 1334 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1335 if (params->rnr_ies) { 1336 rnr = params->rnr_ies; 1337 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1338 } 1339 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1340 mbssid->cnt); 1341 } else if (old && old->mbssid_ies) { 1342 mbssid = old->mbssid_ies; 1343 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1344 if (old && old->rnr_ies) { 1345 rnr = old->rnr_ies; 1346 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1347 } 1348 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1349 mbssid->cnt); 1350 } 1351 1352 new = kzalloc(size, GFP_KERNEL); 1353 if (!new) 1354 return -ENOMEM; 1355 1356 /* start filling the new info now */ 1357 1358 /* 1359 * pointers go into the block we allocated, 1360 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1361 */ 1362 new->head = ((u8 *) new) + sizeof(*new); 1363 new->tail = new->head + new_head_len; 1364 new->head_len = new_head_len; 1365 new->tail_len = new_tail_len; 1366 /* copy in optional mbssid_ies */ 1367 if (mbssid) { 1368 u8 *pos = new->tail + new->tail_len; 1369 1370 new->mbssid_ies = (void *)pos; 1371 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1372 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1373 mbssid); 1374 if (rnr) { 1375 new->rnr_ies = (void *)pos; 1376 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1377 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1378 } 1379 /* update bssid_indicator */ 1380 if (new->mbssid_ies->cnt && new->mbssid_ies->elem[0].len > 2) 1381 link_conf->bssid_indicator = 1382 *(new->mbssid_ies->elem[0].data + 2); 1383 else 1384 link_conf->bssid_indicator = 0; 1385 } 1386 1387 if (csa) { 1388 new->cntdwn_current_counter = csa->count; 1389 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1390 csa->n_counter_offsets_beacon * 1391 sizeof(new->cntdwn_counter_offsets[0])); 1392 } else if (cca) { 1393 new->cntdwn_current_counter = cca->count; 1394 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1395 } 1396 1397 /* copy in head */ 1398 if (params->head) 1399 memcpy(new->head, params->head, new_head_len); 1400 else 1401 memcpy(new->head, old->head, new_head_len); 1402 1403 /* copy in optional tail */ 1404 if (params->tail) 1405 memcpy(new->tail, params->tail, new_tail_len); 1406 else 1407 if (old) 1408 memcpy(new->tail, old->tail, new_tail_len); 1409 1410 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1411 params->probe_resp_len, csa, cca, link); 1412 if (err < 0) { 1413 kfree(new); 1414 return err; 1415 } 1416 if (err == 0) 1417 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1418 1419 if (params->ftm_responder != -1) { 1420 link_conf->ftm_responder = params->ftm_responder; 1421 err = ieee80211_set_ftm_responder_params(sdata, 1422 params->lci, 1423 params->lci_len, 1424 params->civicloc, 1425 params->civicloc_len, 1426 link_conf); 1427 1428 if (err < 0) { 1429 kfree(new); 1430 return err; 1431 } 1432 1433 _changed |= BSS_CHANGED_FTM_RESPONDER; 1434 } 1435 1436 rcu_assign_pointer(link->u.ap.beacon, new); 1437 sdata->u.ap.active = true; 1438 1439 if (old) 1440 kfree_rcu(old, rcu_head); 1441 1442 *changed |= _changed; 1443 return 0; 1444 } 1445 1446 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1447 { 1448 struct ieee80211_link_data *link; 1449 u8 link_id, num = 0; 1450 1451 if (sdata->vif.type != NL80211_IFTYPE_AP && 1452 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1453 return num; 1454 1455 /* non-MLO mode of operation also uses link_id 0 in sdata so it is 1456 * safe to directly proceed with the below loop 1457 */ 1458 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1459 link = sdata_dereference(sdata->link[link_id], sdata); 1460 if (!link) 1461 continue; 1462 1463 if (sdata_dereference(link->u.ap.beacon, sdata)) 1464 num++; 1465 } 1466 1467 return num; 1468 } 1469 1470 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1471 struct cfg80211_ap_settings *params) 1472 { 1473 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1474 struct ieee80211_local *local = sdata->local; 1475 struct beacon_data *old; 1476 struct ieee80211_sub_if_data *vlan; 1477 u64 changed = BSS_CHANGED_BEACON_INT | 1478 BSS_CHANGED_BEACON_ENABLED | 1479 BSS_CHANGED_BEACON | 1480 BSS_CHANGED_P2P_PS | 1481 BSS_CHANGED_TXPOWER | 1482 BSS_CHANGED_TWT; 1483 int i, err; 1484 int prev_beacon_int; 1485 unsigned int link_id = params->beacon.link_id; 1486 struct ieee80211_link_data *link; 1487 struct ieee80211_bss_conf *link_conf; 1488 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1489 u64 tsf; 1490 1491 lockdep_assert_wiphy(local->hw.wiphy); 1492 1493 link = sdata_dereference(sdata->link[link_id], sdata); 1494 if (!link) 1495 return -ENOLINK; 1496 1497 link_conf = link->conf; 1498 1499 old = sdata_dereference(link->u.ap.beacon, sdata); 1500 if (old) 1501 return -EALREADY; 1502 1503 link->smps_mode = IEEE80211_SMPS_OFF; 1504 1505 link->needed_rx_chains = sdata->local->rx_chains; 1506 1507 prev_beacon_int = link_conf->beacon_int; 1508 link_conf->beacon_int = params->beacon_interval; 1509 1510 if (params->ht_cap) 1511 link_conf->ht_ldpc = 1512 params->ht_cap->cap_info & 1513 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1514 1515 if (params->vht_cap) { 1516 link_conf->vht_ldpc = 1517 params->vht_cap->vht_cap_info & 1518 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1519 link_conf->vht_su_beamformer = 1520 params->vht_cap->vht_cap_info & 1521 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1522 link_conf->vht_su_beamformee = 1523 params->vht_cap->vht_cap_info & 1524 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1525 link_conf->vht_mu_beamformer = 1526 params->vht_cap->vht_cap_info & 1527 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1528 link_conf->vht_mu_beamformee = 1529 params->vht_cap->vht_cap_info & 1530 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1531 } 1532 1533 if (params->he_cap && params->he_oper) { 1534 link_conf->he_support = true; 1535 link_conf->htc_trig_based_pkt_ext = 1536 le32_get_bits(params->he_oper->he_oper_params, 1537 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1538 link_conf->frame_time_rts_th = 1539 le32_get_bits(params->he_oper->he_oper_params, 1540 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1541 changed |= BSS_CHANGED_HE_OBSS_PD; 1542 1543 if (params->beacon.he_bss_color.enabled) 1544 changed |= BSS_CHANGED_HE_BSS_COLOR; 1545 } 1546 1547 if (params->he_cap) { 1548 link_conf->he_ldpc = 1549 params->he_cap->phy_cap_info[1] & 1550 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1551 link_conf->he_su_beamformer = 1552 params->he_cap->phy_cap_info[3] & 1553 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1554 link_conf->he_su_beamformee = 1555 params->he_cap->phy_cap_info[4] & 1556 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1557 link_conf->he_mu_beamformer = 1558 params->he_cap->phy_cap_info[4] & 1559 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1560 link_conf->he_full_ul_mumimo = 1561 params->he_cap->phy_cap_info[2] & 1562 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1563 } 1564 1565 if (params->eht_cap) { 1566 if (!link_conf->he_support) 1567 return -EOPNOTSUPP; 1568 1569 link_conf->eht_support = true; 1570 1571 link_conf->eht_su_beamformer = 1572 params->eht_cap->fixed.phy_cap_info[0] & 1573 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1574 link_conf->eht_su_beamformee = 1575 params->eht_cap->fixed.phy_cap_info[0] & 1576 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1577 link_conf->eht_mu_beamformer = 1578 params->eht_cap->fixed.phy_cap_info[7] & 1579 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1580 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1581 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1582 link_conf->eht_80mhz_full_bw_ul_mumimo = 1583 params->eht_cap->fixed.phy_cap_info[7] & 1584 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1585 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1586 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1587 link_conf->eht_disable_mcs15 = 1588 u8_get_bits(params->eht_oper->params, 1589 IEEE80211_EHT_OPER_MCS15_DISABLE); 1590 } else { 1591 link_conf->eht_su_beamformer = false; 1592 link_conf->eht_su_beamformee = false; 1593 link_conf->eht_mu_beamformer = false; 1594 } 1595 1596 if (sdata->vif.type == NL80211_IFTYPE_AP && 1597 params->mbssid_config.tx_wdev) { 1598 err = ieee80211_set_ap_mbssid_options(sdata, 1599 ¶ms->mbssid_config, 1600 link_conf); 1601 if (err) 1602 return err; 1603 } 1604 1605 err = ieee80211_link_use_channel(link, &chanreq, 1606 IEEE80211_CHANCTX_SHARED); 1607 if (!err) 1608 ieee80211_link_copy_chanctx_to_vlans(link, false); 1609 if (err) { 1610 link_conf->beacon_int = prev_beacon_int; 1611 return err; 1612 } 1613 1614 /* 1615 * Apply control port protocol, this allows us to 1616 * not encrypt dynamic WEP control frames. 1617 */ 1618 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1619 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1620 sdata->control_port_over_nl80211 = 1621 params->crypto.control_port_over_nl80211; 1622 sdata->control_port_no_preauth = 1623 params->crypto.control_port_no_preauth; 1624 1625 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1626 vlan->control_port_protocol = 1627 params->crypto.control_port_ethertype; 1628 vlan->control_port_no_encrypt = 1629 params->crypto.control_port_no_encrypt; 1630 vlan->control_port_over_nl80211 = 1631 params->crypto.control_port_over_nl80211; 1632 vlan->control_port_no_preauth = 1633 params->crypto.control_port_no_preauth; 1634 } 1635 1636 link_conf->dtim_period = params->dtim_period; 1637 link_conf->enable_beacon = true; 1638 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1639 link_conf->twt_responder = params->twt_responder; 1640 link_conf->he_obss_pd = params->he_obss_pd; 1641 link_conf->he_bss_color = params->beacon.he_bss_color; 1642 link_conf->s1g_long_beacon_period = params->s1g_long_beacon_period; 1643 sdata->vif.cfg.s1g = params->chandef.chan->band == NL80211_BAND_S1GHZ; 1644 1645 sdata->vif.cfg.ssid_len = params->ssid_len; 1646 if (params->ssid_len) 1647 memcpy(sdata->vif.cfg.ssid, params->ssid, 1648 params->ssid_len); 1649 link_conf->hidden_ssid = 1650 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1651 1652 memset(&link_conf->p2p_noa_attr, 0, 1653 sizeof(link_conf->p2p_noa_attr)); 1654 link_conf->p2p_noa_attr.oppps_ctwindow = 1655 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1656 if (params->p2p_opp_ps) 1657 link_conf->p2p_noa_attr.oppps_ctwindow |= 1658 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1659 1660 sdata->beacon_rate_set = false; 1661 if (wiphy_ext_feature_isset(local->hw.wiphy, 1662 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1663 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1664 sdata->beacon_rateidx_mask[i] = 1665 params->beacon_rate.control[i].legacy; 1666 if (sdata->beacon_rateidx_mask[i]) 1667 sdata->beacon_rate_set = true; 1668 } 1669 } 1670 1671 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1672 link_conf->beacon_tx_rate = params->beacon_rate; 1673 1674 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1675 &changed); 1676 if (err < 0) 1677 goto error; 1678 1679 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1680 link, link_conf, &changed); 1681 if (err < 0) 1682 goto error; 1683 1684 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1685 ¶ms->unsol_bcast_probe_resp, 1686 link, link_conf, &changed); 1687 if (err < 0) 1688 goto error; 1689 1690 if (sdata->vif.cfg.s1g) { 1691 err = ieee80211_set_s1g_short_beacon(sdata, link, 1692 ¶ms->s1g_short_beacon); 1693 if (err < 0) 1694 goto error; 1695 } 1696 1697 err = drv_start_ap(sdata->local, sdata, link_conf); 1698 if (err) { 1699 old = sdata_dereference(link->u.ap.beacon, sdata); 1700 1701 if (old) 1702 kfree_rcu(old, rcu_head); 1703 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1704 1705 if (ieee80211_num_beaconing_links(sdata) == 0) 1706 sdata->u.ap.active = false; 1707 1708 goto error; 1709 } 1710 1711 tsf = drv_get_tsf(local, sdata); 1712 ieee80211_recalc_dtim(sdata, tsf); 1713 1714 if (link->u.ap.s1g_short_beacon) 1715 ieee80211_recalc_sb_count(sdata, tsf); 1716 1717 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1718 ieee80211_link_info_change_notify(sdata, link, changed); 1719 1720 if (ieee80211_num_beaconing_links(sdata) <= 1) 1721 netif_carrier_on(dev); 1722 1723 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1724 netif_carrier_on(vlan->dev); 1725 1726 return 0; 1727 1728 error: 1729 ieee80211_link_release_channel(link); 1730 1731 return err; 1732 } 1733 1734 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1735 struct cfg80211_ap_update *params) 1736 1737 { 1738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1739 struct ieee80211_link_data *link; 1740 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1741 struct beacon_data *old; 1742 int err; 1743 struct ieee80211_bss_conf *link_conf; 1744 u64 changed = 0; 1745 1746 lockdep_assert_wiphy(wiphy); 1747 1748 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1749 if (!link) 1750 return -ENOLINK; 1751 1752 link_conf = link->conf; 1753 1754 /* don't allow changing the beacon while a countdown is in place - offset 1755 * of channel switch counter may change 1756 */ 1757 if (link_conf->csa_active || link_conf->color_change_active) 1758 return -EBUSY; 1759 1760 old = sdata_dereference(link->u.ap.beacon, sdata); 1761 if (!old) 1762 return -ENOENT; 1763 1764 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1765 &changed); 1766 if (err < 0) 1767 return err; 1768 1769 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1770 link, link_conf, &changed); 1771 if (err < 0) 1772 return err; 1773 1774 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1775 ¶ms->unsol_bcast_probe_resp, 1776 link, link_conf, &changed); 1777 if (err < 0) 1778 return err; 1779 1780 if (link->u.ap.s1g_short_beacon) { 1781 err = ieee80211_set_s1g_short_beacon(sdata, link, 1782 ¶ms->s1g_short_beacon); 1783 if (err < 0) 1784 return err; 1785 } 1786 1787 if (beacon->he_bss_color_valid && 1788 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1789 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1790 changed |= BSS_CHANGED_HE_BSS_COLOR; 1791 } 1792 1793 ieee80211_link_info_change_notify(sdata, link, changed); 1794 return 0; 1795 } 1796 1797 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1798 { 1799 if (!link->u.ap.next_beacon) 1800 return; 1801 1802 kfree(link->u.ap.next_beacon->mbssid_ies); 1803 kfree(link->u.ap.next_beacon->rnr_ies); 1804 kfree(link->u.ap.next_beacon); 1805 link->u.ap.next_beacon = NULL; 1806 } 1807 1808 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1809 unsigned int link_id) 1810 { 1811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1812 struct ieee80211_sub_if_data *vlan; 1813 struct ieee80211_local *local = sdata->local; 1814 struct beacon_data *old_beacon; 1815 struct probe_resp *old_probe_resp; 1816 struct fils_discovery_data *old_fils_discovery; 1817 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1818 struct s1g_short_beacon_data *old_s1g_short_beacon; 1819 struct cfg80211_chan_def chandef; 1820 struct ieee80211_link_data *link = 1821 sdata_dereference(sdata->link[link_id], sdata); 1822 struct ieee80211_bss_conf *link_conf = link->conf; 1823 LIST_HEAD(keys); 1824 1825 lockdep_assert_wiphy(local->hw.wiphy); 1826 1827 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1828 if (!old_beacon) 1829 return -ENOENT; 1830 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1831 sdata); 1832 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1833 sdata); 1834 old_unsol_bcast_probe_resp = 1835 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1836 sdata); 1837 old_s1g_short_beacon = 1838 sdata_dereference(link->u.ap.s1g_short_beacon, sdata); 1839 1840 /* abort any running channel switch or color change */ 1841 link_conf->csa_active = false; 1842 link_conf->color_change_active = false; 1843 ieee80211_vif_unblock_queues_csa(sdata); 1844 1845 ieee80211_free_next_beacon(link); 1846 1847 /* turn off carrier for this interface and dependent VLANs */ 1848 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1849 netif_carrier_off(vlan->dev); 1850 1851 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1852 netif_carrier_off(dev); 1853 sdata->u.ap.active = false; 1854 } 1855 1856 /* remove beacon and probe response */ 1857 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1858 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1859 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1860 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1861 RCU_INIT_POINTER(link->u.ap.s1g_short_beacon, NULL); 1862 kfree_rcu(old_beacon, rcu_head); 1863 if (old_probe_resp) 1864 kfree_rcu(old_probe_resp, rcu_head); 1865 if (old_fils_discovery) 1866 kfree_rcu(old_fils_discovery, rcu_head); 1867 if (old_unsol_bcast_probe_resp) 1868 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1869 if (old_s1g_short_beacon) 1870 kfree_rcu(old_s1g_short_beacon, rcu_head); 1871 1872 kfree(link_conf->ftmr_params); 1873 link_conf->ftmr_params = NULL; 1874 1875 link_conf->bssid_index = 0; 1876 link_conf->nontransmitted = false; 1877 link_conf->ema_ap = false; 1878 link_conf->bssid_indicator = 0; 1879 1880 __sta_info_flush(sdata, true, link_id, NULL); 1881 1882 ieee80211_remove_link_keys(link, &keys); 1883 if (!list_empty(&keys)) { 1884 synchronize_net(); 1885 ieee80211_free_key_list(local, &keys); 1886 } 1887 1888 ieee80211_stop_mbssid(sdata); 1889 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL); 1890 1891 link_conf->enable_beacon = false; 1892 sdata->beacon_rate_set = false; 1893 sdata->vif.cfg.ssid_len = 0; 1894 sdata->vif.cfg.s1g = false; 1895 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1896 ieee80211_link_info_change_notify(sdata, link, 1897 BSS_CHANGED_BEACON_ENABLED); 1898 1899 if (sdata->wdev.links[link_id].cac_started) { 1900 chandef = link_conf->chanreq.oper; 1901 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1902 cfg80211_cac_event(sdata->dev, &chandef, 1903 NL80211_RADAR_CAC_ABORTED, 1904 GFP_KERNEL, link_id); 1905 } 1906 1907 drv_stop_ap(sdata->local, sdata, link_conf); 1908 1909 /* free all potentially still buffered bcast frames */ 1910 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1911 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1912 1913 ieee80211_link_copy_chanctx_to_vlans(link, true); 1914 ieee80211_link_release_channel(link); 1915 1916 return 0; 1917 } 1918 1919 static int sta_apply_auth_flags(struct ieee80211_local *local, 1920 struct sta_info *sta, 1921 u32 mask, u32 set) 1922 { 1923 int ret; 1924 1925 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1926 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1927 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1928 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1929 if (ret) 1930 return ret; 1931 } 1932 1933 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1934 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1935 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1936 /* 1937 * When peer becomes associated, init rate control as 1938 * well. Some drivers require rate control initialized 1939 * before drv_sta_state() is called. 1940 */ 1941 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1942 rate_control_rate_init_all_links(sta); 1943 1944 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1945 if (ret) 1946 return ret; 1947 } 1948 1949 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1950 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1951 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1952 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1953 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1954 else 1955 ret = 0; 1956 if (ret) 1957 return ret; 1958 } 1959 1960 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1961 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1962 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1963 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1964 if (ret) 1965 return ret; 1966 } 1967 1968 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1969 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1970 test_sta_flag(sta, WLAN_STA_AUTH)) { 1971 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1972 if (ret) 1973 return ret; 1974 } 1975 1976 return 0; 1977 } 1978 1979 static void sta_apply_mesh_params(struct ieee80211_local *local, 1980 struct sta_info *sta, 1981 struct station_parameters *params) 1982 { 1983 #ifdef CONFIG_MAC80211_MESH 1984 struct ieee80211_sub_if_data *sdata = sta->sdata; 1985 u64 changed = 0; 1986 1987 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1988 switch (params->plink_state) { 1989 case NL80211_PLINK_ESTAB: 1990 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1991 changed = mesh_plink_inc_estab_count(sdata); 1992 sta->mesh->plink_state = params->plink_state; 1993 sta->mesh->aid = params->peer_aid; 1994 1995 ieee80211_mps_sta_status_update(sta); 1996 changed |= ieee80211_mps_set_sta_local_pm(sta, 1997 sdata->u.mesh.mshcfg.power_mode); 1998 1999 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 2000 /* init at low value */ 2001 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 2002 2003 break; 2004 case NL80211_PLINK_LISTEN: 2005 case NL80211_PLINK_BLOCKED: 2006 case NL80211_PLINK_OPN_SNT: 2007 case NL80211_PLINK_OPN_RCVD: 2008 case NL80211_PLINK_CNF_RCVD: 2009 case NL80211_PLINK_HOLDING: 2010 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 2011 changed = mesh_plink_dec_estab_count(sdata); 2012 sta->mesh->plink_state = params->plink_state; 2013 2014 ieee80211_mps_sta_status_update(sta); 2015 changed |= ieee80211_mps_set_sta_local_pm(sta, 2016 NL80211_MESH_POWER_UNKNOWN); 2017 break; 2018 default: 2019 /* nothing */ 2020 break; 2021 } 2022 } 2023 2024 switch (params->plink_action) { 2025 case NL80211_PLINK_ACTION_NO_ACTION: 2026 /* nothing */ 2027 break; 2028 case NL80211_PLINK_ACTION_OPEN: 2029 changed |= mesh_plink_open(sta); 2030 break; 2031 case NL80211_PLINK_ACTION_BLOCK: 2032 changed |= mesh_plink_block(sta); 2033 break; 2034 } 2035 2036 if (params->local_pm) 2037 changed |= ieee80211_mps_set_sta_local_pm(sta, 2038 params->local_pm); 2039 2040 ieee80211_mbss_info_change_notify(sdata, changed); 2041 #endif 2042 } 2043 2044 enum sta_link_apply_mode { 2045 STA_LINK_MODE_NEW, 2046 STA_LINK_MODE_STA_MODIFY, 2047 STA_LINK_MODE_LINK_MODIFY, 2048 }; 2049 2050 static int sta_link_apply_parameters(struct ieee80211_local *local, 2051 struct sta_info *sta, 2052 enum sta_link_apply_mode mode, 2053 struct link_station_parameters *params) 2054 { 2055 struct ieee80211_supported_band *sband; 2056 struct ieee80211_sub_if_data *sdata = sta->sdata; 2057 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 2058 struct ieee80211_link_data *link = 2059 sdata_dereference(sdata->link[link_id], sdata); 2060 struct link_sta_info *link_sta = 2061 rcu_dereference_protected(sta->link[link_id], 2062 lockdep_is_held(&local->hw.wiphy->mtx)); 2063 bool changes = params->link_mac || 2064 params->txpwr_set || 2065 params->supported_rates_len || 2066 params->ht_capa || 2067 params->vht_capa || 2068 params->he_capa || 2069 params->eht_capa || 2070 params->s1g_capa || 2071 params->opmode_notif_used; 2072 2073 switch (mode) { 2074 case STA_LINK_MODE_NEW: 2075 if (!params->link_mac) 2076 return -EINVAL; 2077 break; 2078 case STA_LINK_MODE_LINK_MODIFY: 2079 break; 2080 case STA_LINK_MODE_STA_MODIFY: 2081 if (params->link_id >= 0) 2082 break; 2083 if (!changes) 2084 return 0; 2085 break; 2086 } 2087 2088 if (!link || !link_sta) 2089 return -EINVAL; 2090 2091 sband = ieee80211_get_link_sband(link); 2092 if (!sband) 2093 return -EINVAL; 2094 2095 if (params->link_mac) { 2096 if (mode == STA_LINK_MODE_NEW) { 2097 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 2098 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 2099 } else if (!ether_addr_equal(link_sta->addr, 2100 params->link_mac)) { 2101 return -EINVAL; 2102 } 2103 } 2104 2105 if (params->txpwr_set) { 2106 int ret; 2107 2108 link_sta->pub->txpwr.type = params->txpwr.type; 2109 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 2110 link_sta->pub->txpwr.power = params->txpwr.power; 2111 ret = drv_sta_set_txpwr(local, sdata, sta); 2112 if (ret) 2113 return ret; 2114 } 2115 2116 if (params->supported_rates && 2117 params->supported_rates_len && 2118 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2119 sband, params->supported_rates, 2120 params->supported_rates_len, 2121 &link_sta->pub->supp_rates[sband->band])) 2122 return -EINVAL; 2123 2124 if (params->ht_capa) 2125 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 2126 params->ht_capa, link_sta); 2127 2128 /* VHT can override some HT caps such as the A-MSDU max length */ 2129 if (params->vht_capa) 2130 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 2131 params->vht_capa, NULL, 2132 link_sta); 2133 2134 if (params->he_capa) 2135 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 2136 (void *)params->he_capa, 2137 params->he_capa_len, 2138 (void *)params->he_6ghz_capa, 2139 link_sta); 2140 2141 if (params->he_capa && params->eht_capa) 2142 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 2143 (u8 *)params->he_capa, 2144 params->he_capa_len, 2145 params->eht_capa, 2146 params->eht_capa_len, 2147 link_sta); 2148 2149 if (params->s1g_capa) 2150 ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa, 2151 link_sta); 2152 2153 ieee80211_sta_init_nss(link_sta); 2154 2155 if (params->opmode_notif_used) { 2156 enum nl80211_chan_width width = link->conf->chanreq.oper.width; 2157 2158 switch (width) { 2159 case NL80211_CHAN_WIDTH_20: 2160 case NL80211_CHAN_WIDTH_40: 2161 case NL80211_CHAN_WIDTH_80: 2162 case NL80211_CHAN_WIDTH_160: 2163 case NL80211_CHAN_WIDTH_80P80: 2164 case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */ 2165 break; 2166 default: 2167 return -EINVAL; 2168 } 2169 2170 /* returned value is only needed for rc update, but the 2171 * rc isn't initialized here yet, so ignore it 2172 */ 2173 __ieee80211_vht_handle_opmode(sdata, link_sta, 2174 params->opmode_notif, 2175 sband->band); 2176 } 2177 2178 return 0; 2179 } 2180 2181 static int sta_apply_parameters(struct ieee80211_local *local, 2182 struct sta_info *sta, 2183 struct station_parameters *params) 2184 { 2185 struct ieee80211_sub_if_data *sdata = sta->sdata; 2186 u32 mask, set; 2187 int ret = 0; 2188 2189 mask = params->sta_flags_mask; 2190 set = params->sta_flags_set; 2191 2192 if (ieee80211_vif_is_mesh(&sdata->vif)) { 2193 /* 2194 * In mesh mode, ASSOCIATED isn't part of the nl80211 2195 * API but must follow AUTHENTICATED for driver state. 2196 */ 2197 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2198 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2199 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2200 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2201 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2202 /* 2203 * TDLS -- everything follows authorized, but 2204 * only becoming authorized is possible, not 2205 * going back 2206 */ 2207 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2208 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2209 BIT(NL80211_STA_FLAG_ASSOCIATED); 2210 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2211 BIT(NL80211_STA_FLAG_ASSOCIATED); 2212 } 2213 } 2214 2215 if (mask & BIT(NL80211_STA_FLAG_WME) && 2216 local->hw.queues >= IEEE80211_NUM_ACS) 2217 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 2218 2219 /* auth flags will be set later for TDLS, 2220 * and for unassociated stations that move to associated */ 2221 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2222 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 2223 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2224 ret = sta_apply_auth_flags(local, sta, mask, set); 2225 if (ret) 2226 return ret; 2227 } 2228 2229 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2230 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2231 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2232 else 2233 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2234 } 2235 2236 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2237 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2238 if (set & BIT(NL80211_STA_FLAG_MFP)) 2239 set_sta_flag(sta, WLAN_STA_MFP); 2240 else 2241 clear_sta_flag(sta, WLAN_STA_MFP); 2242 } 2243 2244 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2245 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2246 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2247 else 2248 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2249 } 2250 2251 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2252 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2253 2254 /* mark TDLS channel switch support, if the AP allows it */ 2255 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2256 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2257 params->ext_capab_len >= 4 && 2258 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2259 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2260 2261 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2262 !sdata->u.mgd.tdls_wider_bw_prohibited && 2263 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2264 params->ext_capab_len >= 8 && 2265 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2266 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2267 2268 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2269 sta->sta.uapsd_queues = params->uapsd_queues; 2270 sta->sta.max_sp = params->max_sp; 2271 } 2272 2273 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2274 params->ext_capab_len); 2275 2276 /* 2277 * cfg80211 validates this (1-2007) and allows setting the AID 2278 * only when creating a new station entry. For S1G APs, the current 2279 * implementation supports a maximum of 1600 AIDs. 2280 */ 2281 if (params->aid) { 2282 if (sdata->vif.cfg.s1g && 2283 params->aid > IEEE80211_MAX_SUPPORTED_S1G_AID) 2284 return -EINVAL; 2285 2286 sta->sta.aid = params->aid; 2287 } 2288 2289 /* 2290 * Some of the following updates would be racy if called on an 2291 * existing station, via ieee80211_change_station(). However, 2292 * all such changes are rejected by cfg80211 except for updates 2293 * changing the supported rates on an existing but not yet used 2294 * TDLS peer. 2295 */ 2296 2297 if (params->listen_interval >= 0) 2298 sta->listen_interval = params->listen_interval; 2299 2300 if (params->eml_cap_present) 2301 sta->sta.eml_cap = params->eml_cap; 2302 2303 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2304 ¶ms->link_sta_params); 2305 if (ret) 2306 return ret; 2307 2308 if (params->support_p2p_ps >= 0) 2309 sta->sta.support_p2p_ps = params->support_p2p_ps; 2310 2311 if (ieee80211_vif_is_mesh(&sdata->vif)) 2312 sta_apply_mesh_params(local, sta, params); 2313 2314 if (params->airtime_weight) 2315 sta->airtime_weight = params->airtime_weight; 2316 2317 /* set the STA state after all sta info from usermode has been set */ 2318 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2319 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2320 ret = sta_apply_auth_flags(local, sta, mask, set); 2321 if (ret) 2322 return ret; 2323 } 2324 2325 /* Mark the STA as MLO if MLD MAC address is available */ 2326 if (params->link_sta_params.mld_mac) 2327 sta->sta.mlo = true; 2328 2329 return 0; 2330 } 2331 2332 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2333 const u8 *mac, 2334 struct station_parameters *params) 2335 { 2336 struct ieee80211_local *local = wiphy_priv(wiphy); 2337 struct sta_info *sta; 2338 struct ieee80211_sub_if_data *sdata; 2339 int err; 2340 2341 lockdep_assert_wiphy(local->hw.wiphy); 2342 2343 if (params->vlan) { 2344 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2345 2346 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2347 sdata->vif.type != NL80211_IFTYPE_AP) 2348 return -EINVAL; 2349 } else 2350 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2351 2352 if (ether_addr_equal(mac, sdata->vif.addr)) 2353 return -EINVAL; 2354 2355 if (!is_valid_ether_addr(mac)) 2356 return -EINVAL; 2357 2358 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2359 sdata->vif.type == NL80211_IFTYPE_STATION && 2360 !sdata->u.mgd.associated) 2361 return -EINVAL; 2362 2363 /* 2364 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2365 * but we need to have a link_mac in that case as well, so use the 2366 * STA's MAC address in that case. 2367 */ 2368 if (params->link_sta_params.link_id >= 0) 2369 sta = sta_info_alloc_with_link(sdata, mac, 2370 params->link_sta_params.link_id, 2371 params->link_sta_params.link_mac ?: mac, 2372 GFP_KERNEL); 2373 else 2374 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2375 2376 if (!sta) 2377 return -ENOMEM; 2378 2379 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2380 sta->sta.tdls = true; 2381 2382 /* Though the mutex is not needed here (since the station is not 2383 * visible yet), sta_apply_parameters (and inner functions) require 2384 * the mutex due to other paths. 2385 */ 2386 err = sta_apply_parameters(local, sta, params); 2387 if (err) { 2388 sta_info_free(local, sta); 2389 return err; 2390 } 2391 2392 /* 2393 * for TDLS and for unassociated station, rate control should be 2394 * initialized only when rates are known and station is marked 2395 * authorized/associated 2396 */ 2397 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2398 test_sta_flag(sta, WLAN_STA_ASSOC)) 2399 rate_control_rate_init_all_links(sta); 2400 2401 return sta_info_insert(sta); 2402 } 2403 2404 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2405 struct station_del_parameters *params) 2406 { 2407 struct ieee80211_sub_if_data *sdata; 2408 2409 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2410 2411 if (params->mac) 2412 return sta_info_destroy_addr_bss(sdata, params->mac); 2413 2414 sta_info_flush(sdata, params->link_id); 2415 return 0; 2416 } 2417 2418 static int ieee80211_change_station(struct wiphy *wiphy, 2419 struct net_device *dev, const u8 *mac, 2420 struct station_parameters *params) 2421 { 2422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2423 struct ieee80211_local *local = wiphy_priv(wiphy); 2424 struct sta_info *sta; 2425 struct ieee80211_sub_if_data *vlansdata; 2426 enum cfg80211_station_type statype; 2427 int err; 2428 2429 lockdep_assert_wiphy(local->hw.wiphy); 2430 2431 sta = sta_info_get_bss(sdata, mac); 2432 if (!sta) 2433 return -ENOENT; 2434 2435 switch (sdata->vif.type) { 2436 case NL80211_IFTYPE_MESH_POINT: 2437 if (sdata->u.mesh.user_mpm) 2438 statype = CFG80211_STA_MESH_PEER_USER; 2439 else 2440 statype = CFG80211_STA_MESH_PEER_KERNEL; 2441 break; 2442 case NL80211_IFTYPE_ADHOC: 2443 statype = CFG80211_STA_IBSS; 2444 break; 2445 case NL80211_IFTYPE_STATION: 2446 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2447 statype = CFG80211_STA_AP_STA; 2448 break; 2449 } 2450 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2451 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2452 else 2453 statype = CFG80211_STA_TDLS_PEER_SETUP; 2454 break; 2455 case NL80211_IFTYPE_AP: 2456 case NL80211_IFTYPE_AP_VLAN: 2457 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2458 statype = CFG80211_STA_AP_CLIENT; 2459 else 2460 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2461 break; 2462 default: 2463 return -EOPNOTSUPP; 2464 } 2465 2466 err = cfg80211_check_station_change(wiphy, params, statype); 2467 if (err) 2468 return err; 2469 2470 if (params->vlan && params->vlan != sta->sdata->dev) { 2471 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2472 2473 if (params->vlan->ieee80211_ptr->use_4addr) { 2474 if (vlansdata->u.vlan.sta) 2475 return -EBUSY; 2476 2477 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2478 __ieee80211_check_fast_rx_iface(vlansdata); 2479 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2480 } 2481 2482 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2483 sta->sdata->u.vlan.sta) 2484 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2485 2486 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2487 ieee80211_vif_dec_num_mcast(sta->sdata); 2488 2489 sta->sdata = vlansdata; 2490 ieee80211_check_fast_rx(sta); 2491 ieee80211_check_fast_xmit(sta); 2492 2493 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2494 ieee80211_vif_inc_num_mcast(sta->sdata); 2495 cfg80211_send_layer2_update(sta->sdata->dev, 2496 sta->sta.addr); 2497 } 2498 } 2499 2500 err = sta_apply_parameters(local, sta, params); 2501 if (err) 2502 return err; 2503 2504 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2505 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2506 ieee80211_recalc_ps(local); 2507 ieee80211_recalc_ps_vif(sdata); 2508 } 2509 2510 return 0; 2511 } 2512 2513 #ifdef CONFIG_MAC80211_MESH 2514 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2515 const u8 *dst, const u8 *next_hop) 2516 { 2517 struct ieee80211_sub_if_data *sdata; 2518 struct mesh_path *mpath; 2519 struct sta_info *sta; 2520 2521 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2522 2523 rcu_read_lock(); 2524 sta = sta_info_get(sdata, next_hop); 2525 if (!sta) { 2526 rcu_read_unlock(); 2527 return -ENOENT; 2528 } 2529 2530 mpath = mesh_path_add(sdata, dst); 2531 if (IS_ERR(mpath)) { 2532 rcu_read_unlock(); 2533 return PTR_ERR(mpath); 2534 } 2535 2536 mesh_path_fix_nexthop(mpath, sta); 2537 2538 rcu_read_unlock(); 2539 return 0; 2540 } 2541 2542 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2543 const u8 *dst) 2544 { 2545 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2546 2547 if (dst) 2548 return mesh_path_del(sdata, dst); 2549 2550 mesh_path_flush_by_iface(sdata); 2551 return 0; 2552 } 2553 2554 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2555 const u8 *dst, const u8 *next_hop) 2556 { 2557 struct ieee80211_sub_if_data *sdata; 2558 struct mesh_path *mpath; 2559 struct sta_info *sta; 2560 2561 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2562 2563 rcu_read_lock(); 2564 2565 sta = sta_info_get(sdata, next_hop); 2566 if (!sta) { 2567 rcu_read_unlock(); 2568 return -ENOENT; 2569 } 2570 2571 mpath = mesh_path_lookup(sdata, dst); 2572 if (!mpath) { 2573 rcu_read_unlock(); 2574 return -ENOENT; 2575 } 2576 2577 mesh_path_fix_nexthop(mpath, sta); 2578 2579 rcu_read_unlock(); 2580 return 0; 2581 } 2582 2583 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2584 struct mpath_info *pinfo) 2585 { 2586 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2587 2588 if (next_hop_sta) 2589 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2590 else 2591 eth_zero_addr(next_hop); 2592 2593 memset(pinfo, 0, sizeof(*pinfo)); 2594 2595 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2596 2597 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2598 MPATH_INFO_SN | 2599 MPATH_INFO_METRIC | 2600 MPATH_INFO_EXPTIME | 2601 MPATH_INFO_DISCOVERY_TIMEOUT | 2602 MPATH_INFO_DISCOVERY_RETRIES | 2603 MPATH_INFO_FLAGS | 2604 MPATH_INFO_HOP_COUNT | 2605 MPATH_INFO_PATH_CHANGE; 2606 2607 pinfo->frame_qlen = mpath->frame_queue.qlen; 2608 pinfo->sn = mpath->sn; 2609 pinfo->metric = mpath->metric; 2610 if (time_before(jiffies, mpath->exp_time)) 2611 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2612 pinfo->discovery_timeout = 2613 jiffies_to_msecs(mpath->discovery_timeout); 2614 pinfo->discovery_retries = mpath->discovery_retries; 2615 if (mpath->flags & MESH_PATH_ACTIVE) 2616 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2617 if (mpath->flags & MESH_PATH_RESOLVING) 2618 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2619 if (mpath->flags & MESH_PATH_SN_VALID) 2620 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2621 if (mpath->flags & MESH_PATH_FIXED) 2622 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2623 if (mpath->flags & MESH_PATH_RESOLVED) 2624 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2625 pinfo->hop_count = mpath->hop_count; 2626 pinfo->path_change_count = mpath->path_change_count; 2627 } 2628 2629 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2630 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2631 2632 { 2633 struct ieee80211_sub_if_data *sdata; 2634 struct mesh_path *mpath; 2635 2636 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2637 2638 rcu_read_lock(); 2639 mpath = mesh_path_lookup(sdata, dst); 2640 if (!mpath) { 2641 rcu_read_unlock(); 2642 return -ENOENT; 2643 } 2644 memcpy(dst, mpath->dst, ETH_ALEN); 2645 mpath_set_pinfo(mpath, next_hop, pinfo); 2646 rcu_read_unlock(); 2647 return 0; 2648 } 2649 2650 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2651 int idx, u8 *dst, u8 *next_hop, 2652 struct mpath_info *pinfo) 2653 { 2654 struct ieee80211_sub_if_data *sdata; 2655 struct mesh_path *mpath; 2656 2657 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2658 2659 rcu_read_lock(); 2660 mpath = mesh_path_lookup_by_idx(sdata, idx); 2661 if (!mpath) { 2662 rcu_read_unlock(); 2663 return -ENOENT; 2664 } 2665 memcpy(dst, mpath->dst, ETH_ALEN); 2666 mpath_set_pinfo(mpath, next_hop, pinfo); 2667 rcu_read_unlock(); 2668 return 0; 2669 } 2670 2671 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2672 struct mpath_info *pinfo) 2673 { 2674 memset(pinfo, 0, sizeof(*pinfo)); 2675 memcpy(mpp, mpath->mpp, ETH_ALEN); 2676 2677 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2678 } 2679 2680 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2681 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2682 2683 { 2684 struct ieee80211_sub_if_data *sdata; 2685 struct mesh_path *mpath; 2686 2687 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2688 2689 rcu_read_lock(); 2690 mpath = mpp_path_lookup(sdata, dst); 2691 if (!mpath) { 2692 rcu_read_unlock(); 2693 return -ENOENT; 2694 } 2695 memcpy(dst, mpath->dst, ETH_ALEN); 2696 mpp_set_pinfo(mpath, mpp, pinfo); 2697 rcu_read_unlock(); 2698 return 0; 2699 } 2700 2701 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2702 int idx, u8 *dst, u8 *mpp, 2703 struct mpath_info *pinfo) 2704 { 2705 struct ieee80211_sub_if_data *sdata; 2706 struct mesh_path *mpath; 2707 2708 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2709 2710 rcu_read_lock(); 2711 mpath = mpp_path_lookup_by_idx(sdata, idx); 2712 if (!mpath) { 2713 rcu_read_unlock(); 2714 return -ENOENT; 2715 } 2716 memcpy(dst, mpath->dst, ETH_ALEN); 2717 mpp_set_pinfo(mpath, mpp, pinfo); 2718 rcu_read_unlock(); 2719 return 0; 2720 } 2721 2722 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2723 struct net_device *dev, 2724 struct mesh_config *conf) 2725 { 2726 struct ieee80211_sub_if_data *sdata; 2727 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2728 2729 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2730 return 0; 2731 } 2732 2733 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2734 { 2735 return (mask >> (parm-1)) & 0x1; 2736 } 2737 2738 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2739 const struct mesh_setup *setup) 2740 { 2741 u8 *new_ie; 2742 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2743 struct ieee80211_sub_if_data, u.mesh); 2744 int i; 2745 2746 /* allocate information elements */ 2747 new_ie = NULL; 2748 2749 if (setup->ie_len) { 2750 new_ie = kmemdup(setup->ie, setup->ie_len, 2751 GFP_KERNEL); 2752 if (!new_ie) 2753 return -ENOMEM; 2754 } 2755 ifmsh->ie_len = setup->ie_len; 2756 ifmsh->ie = new_ie; 2757 2758 /* now copy the rest of the setup parameters */ 2759 ifmsh->mesh_id_len = setup->mesh_id_len; 2760 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2761 ifmsh->mesh_sp_id = setup->sync_method; 2762 ifmsh->mesh_pp_id = setup->path_sel_proto; 2763 ifmsh->mesh_pm_id = setup->path_metric; 2764 ifmsh->user_mpm = setup->user_mpm; 2765 ifmsh->mesh_auth_id = setup->auth_id; 2766 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2767 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2768 if (setup->is_authenticated) 2769 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2770 if (setup->is_secure) 2771 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2772 2773 /* mcast rate setting in Mesh Node */ 2774 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2775 sizeof(setup->mcast_rate)); 2776 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2777 2778 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2779 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2780 2781 sdata->beacon_rate_set = false; 2782 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2783 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2784 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2785 sdata->beacon_rateidx_mask[i] = 2786 setup->beacon_rate.control[i].legacy; 2787 if (sdata->beacon_rateidx_mask[i]) 2788 sdata->beacon_rate_set = true; 2789 } 2790 } 2791 2792 return 0; 2793 } 2794 2795 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2796 struct net_device *dev, u32 mask, 2797 const struct mesh_config *nconf) 2798 { 2799 struct mesh_config *conf; 2800 struct ieee80211_sub_if_data *sdata; 2801 struct ieee80211_if_mesh *ifmsh; 2802 2803 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2804 ifmsh = &sdata->u.mesh; 2805 2806 /* Set the config options which we are interested in setting */ 2807 conf = &(sdata->u.mesh.mshcfg); 2808 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2809 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2810 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2811 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2812 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2813 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2814 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2815 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2816 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2817 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2818 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2819 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2820 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2821 conf->element_ttl = nconf->element_ttl; 2822 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2823 if (ifmsh->user_mpm) 2824 return -EBUSY; 2825 conf->auto_open_plinks = nconf->auto_open_plinks; 2826 } 2827 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2828 conf->dot11MeshNbrOffsetMaxNeighbor = 2829 nconf->dot11MeshNbrOffsetMaxNeighbor; 2830 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2831 conf->dot11MeshHWMPmaxPREQretries = 2832 nconf->dot11MeshHWMPmaxPREQretries; 2833 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2834 conf->path_refresh_time = nconf->path_refresh_time; 2835 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2836 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2837 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2838 conf->dot11MeshHWMPactivePathTimeout = 2839 nconf->dot11MeshHWMPactivePathTimeout; 2840 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2841 conf->dot11MeshHWMPpreqMinInterval = 2842 nconf->dot11MeshHWMPpreqMinInterval; 2843 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2844 conf->dot11MeshHWMPperrMinInterval = 2845 nconf->dot11MeshHWMPperrMinInterval; 2846 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2847 mask)) 2848 conf->dot11MeshHWMPnetDiameterTraversalTime = 2849 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2850 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2851 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2852 ieee80211_mesh_root_setup(ifmsh); 2853 } 2854 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2855 /* our current gate announcement implementation rides on root 2856 * announcements, so require this ifmsh to also be a root node 2857 * */ 2858 if (nconf->dot11MeshGateAnnouncementProtocol && 2859 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2860 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2861 ieee80211_mesh_root_setup(ifmsh); 2862 } 2863 conf->dot11MeshGateAnnouncementProtocol = 2864 nconf->dot11MeshGateAnnouncementProtocol; 2865 } 2866 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2867 conf->dot11MeshHWMPRannInterval = 2868 nconf->dot11MeshHWMPRannInterval; 2869 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2870 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2871 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2872 /* our RSSI threshold implementation is supported only for 2873 * devices that report signal in dBm. 2874 */ 2875 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2876 return -EOPNOTSUPP; 2877 conf->rssi_threshold = nconf->rssi_threshold; 2878 } 2879 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2880 conf->ht_opmode = nconf->ht_opmode; 2881 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2882 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2883 BSS_CHANGED_HT); 2884 } 2885 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2886 conf->dot11MeshHWMPactivePathToRootTimeout = 2887 nconf->dot11MeshHWMPactivePathToRootTimeout; 2888 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2889 conf->dot11MeshHWMProotInterval = 2890 nconf->dot11MeshHWMProotInterval; 2891 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2892 conf->dot11MeshHWMPconfirmationInterval = 2893 nconf->dot11MeshHWMPconfirmationInterval; 2894 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2895 conf->power_mode = nconf->power_mode; 2896 ieee80211_mps_local_status_update(sdata); 2897 } 2898 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2899 conf->dot11MeshAwakeWindowDuration = 2900 nconf->dot11MeshAwakeWindowDuration; 2901 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2902 conf->plink_timeout = nconf->plink_timeout; 2903 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2904 conf->dot11MeshConnectedToMeshGate = 2905 nconf->dot11MeshConnectedToMeshGate; 2906 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2907 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2908 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2909 conf->dot11MeshConnectedToAuthServer = 2910 nconf->dot11MeshConnectedToAuthServer; 2911 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2912 return 0; 2913 } 2914 2915 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2916 const struct mesh_config *conf, 2917 const struct mesh_setup *setup) 2918 { 2919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2920 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2921 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2922 int err; 2923 2924 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2925 2926 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2927 err = copy_mesh_setup(ifmsh, setup); 2928 if (err) 2929 return err; 2930 2931 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2932 2933 /* can mesh use other SMPS modes? */ 2934 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2935 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2936 2937 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2938 IEEE80211_CHANCTX_SHARED); 2939 if (err) 2940 return err; 2941 2942 return ieee80211_start_mesh(sdata); 2943 } 2944 2945 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2946 { 2947 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2948 2949 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2950 2951 ieee80211_stop_mesh(sdata); 2952 ieee80211_link_release_channel(&sdata->deflink); 2953 kfree(sdata->u.mesh.ie); 2954 2955 return 0; 2956 } 2957 #endif 2958 2959 static int ieee80211_change_bss(struct wiphy *wiphy, 2960 struct net_device *dev, 2961 struct bss_parameters *params) 2962 { 2963 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2964 struct ieee80211_link_data *link; 2965 struct ieee80211_supported_band *sband; 2966 u64 changed = 0; 2967 2968 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2969 if (IS_ERR(link)) 2970 return PTR_ERR(link); 2971 2972 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2973 return -ENOENT; 2974 2975 sband = ieee80211_get_link_sband(link); 2976 if (!sband) 2977 return -EINVAL; 2978 2979 if (params->basic_rates) { 2980 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2981 wiphy->bands[sband->band], 2982 params->basic_rates, 2983 params->basic_rates_len, 2984 &link->conf->basic_rates)) 2985 return -EINVAL; 2986 changed |= BSS_CHANGED_BASIC_RATES; 2987 ieee80211_check_rate_mask(link); 2988 } 2989 2990 if (params->use_cts_prot >= 0) { 2991 link->conf->use_cts_prot = params->use_cts_prot; 2992 changed |= BSS_CHANGED_ERP_CTS_PROT; 2993 } 2994 if (params->use_short_preamble >= 0) { 2995 link->conf->use_short_preamble = params->use_short_preamble; 2996 changed |= BSS_CHANGED_ERP_PREAMBLE; 2997 } 2998 2999 if (!link->conf->use_short_slot && 3000 (sband->band == NL80211_BAND_5GHZ || 3001 sband->band == NL80211_BAND_6GHZ)) { 3002 link->conf->use_short_slot = true; 3003 changed |= BSS_CHANGED_ERP_SLOT; 3004 } 3005 3006 if (params->use_short_slot_time >= 0) { 3007 link->conf->use_short_slot = params->use_short_slot_time; 3008 changed |= BSS_CHANGED_ERP_SLOT; 3009 } 3010 3011 if (params->ap_isolate >= 0) { 3012 if (params->ap_isolate) 3013 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3014 else 3015 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3016 ieee80211_check_fast_rx_iface(sdata); 3017 } 3018 3019 if (params->ht_opmode >= 0) { 3020 link->conf->ht_operation_mode = (u16)params->ht_opmode; 3021 changed |= BSS_CHANGED_HT; 3022 } 3023 3024 if (params->p2p_ctwindow >= 0) { 3025 link->conf->p2p_noa_attr.oppps_ctwindow &= 3026 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3027 link->conf->p2p_noa_attr.oppps_ctwindow |= 3028 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3029 changed |= BSS_CHANGED_P2P_PS; 3030 } 3031 3032 if (params->p2p_opp_ps > 0) { 3033 link->conf->p2p_noa_attr.oppps_ctwindow |= 3034 IEEE80211_P2P_OPPPS_ENABLE_BIT; 3035 changed |= BSS_CHANGED_P2P_PS; 3036 } else if (params->p2p_opp_ps == 0) { 3037 link->conf->p2p_noa_attr.oppps_ctwindow &= 3038 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 3039 changed |= BSS_CHANGED_P2P_PS; 3040 } 3041 3042 ieee80211_link_info_change_notify(sdata, link, changed); 3043 3044 return 0; 3045 } 3046 3047 static int ieee80211_set_txq_params(struct wiphy *wiphy, 3048 struct net_device *dev, 3049 struct ieee80211_txq_params *params) 3050 { 3051 struct ieee80211_local *local = wiphy_priv(wiphy); 3052 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3053 struct ieee80211_link_data *link = 3054 ieee80211_link_or_deflink(sdata, params->link_id, true); 3055 struct ieee80211_tx_queue_params p; 3056 3057 if (!local->ops->conf_tx) 3058 return -EOPNOTSUPP; 3059 3060 if (local->hw.queues < IEEE80211_NUM_ACS) 3061 return -EOPNOTSUPP; 3062 3063 if (IS_ERR(link)) 3064 return PTR_ERR(link); 3065 3066 memset(&p, 0, sizeof(p)); 3067 p.aifs = params->aifs; 3068 p.cw_max = params->cwmax; 3069 p.cw_min = params->cwmin; 3070 p.txop = params->txop; 3071 3072 /* 3073 * Setting tx queue params disables u-apsd because it's only 3074 * called in master mode. 3075 */ 3076 p.uapsd = false; 3077 3078 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 3079 3080 link->tx_conf[params->ac] = p; 3081 if (drv_conf_tx(local, link, params->ac, &p)) { 3082 wiphy_debug(local->hw.wiphy, 3083 "failed to set TX queue parameters for AC %d\n", 3084 params->ac); 3085 return -EINVAL; 3086 } 3087 3088 ieee80211_link_info_change_notify(sdata, link, 3089 BSS_CHANGED_QOS); 3090 3091 return 0; 3092 } 3093 3094 #ifdef CONFIG_PM 3095 static int ieee80211_suspend(struct wiphy *wiphy, 3096 struct cfg80211_wowlan *wowlan) 3097 { 3098 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 3099 } 3100 3101 static int ieee80211_resume(struct wiphy *wiphy) 3102 { 3103 return __ieee80211_resume(wiphy_priv(wiphy)); 3104 } 3105 #else 3106 #define ieee80211_suspend NULL 3107 #define ieee80211_resume NULL 3108 #endif 3109 3110 static int ieee80211_scan(struct wiphy *wiphy, 3111 struct cfg80211_scan_request *req) 3112 { 3113 struct ieee80211_sub_if_data *sdata; 3114 struct ieee80211_link_data *link; 3115 struct ieee80211_channel *chan; 3116 int radio_idx; 3117 3118 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 3119 3120 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 3121 case NL80211_IFTYPE_STATION: 3122 case NL80211_IFTYPE_ADHOC: 3123 case NL80211_IFTYPE_MESH_POINT: 3124 case NL80211_IFTYPE_P2P_CLIENT: 3125 case NL80211_IFTYPE_P2P_DEVICE: 3126 break; 3127 case NL80211_IFTYPE_P2P_GO: 3128 if (sdata->local->ops->hw_scan) 3129 break; 3130 /* 3131 * FIXME: implement NoA while scanning in software, 3132 * for now fall through to allow scanning only when 3133 * beaconing hasn't been configured yet 3134 */ 3135 fallthrough; 3136 case NL80211_IFTYPE_AP: 3137 /* 3138 * If the scan has been forced (and the driver supports 3139 * forcing), don't care about being beaconing already. 3140 * This will create problems to the attached stations (e.g. all 3141 * the frames sent while scanning on other channel will be 3142 * lost) 3143 */ 3144 for_each_link_data(sdata, link) { 3145 /* if the link is not beaconing, ignore it */ 3146 if (!sdata_dereference(link->u.ap.beacon, sdata)) 3147 continue; 3148 3149 chan = link->conf->chanreq.oper.chan; 3150 radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chan); 3151 3152 if (ieee80211_is_radio_idx_in_scan_req(wiphy, req, 3153 radio_idx) && 3154 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 3155 !(req->flags & NL80211_SCAN_FLAG_AP))) 3156 return -EOPNOTSUPP; 3157 } 3158 break; 3159 case NL80211_IFTYPE_NAN: 3160 default: 3161 return -EOPNOTSUPP; 3162 } 3163 3164 return ieee80211_request_scan(sdata, req); 3165 } 3166 3167 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 3168 { 3169 ieee80211_scan_cancel(wiphy_priv(wiphy)); 3170 } 3171 3172 static int 3173 ieee80211_sched_scan_start(struct wiphy *wiphy, 3174 struct net_device *dev, 3175 struct cfg80211_sched_scan_request *req) 3176 { 3177 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3178 3179 if (!sdata->local->ops->sched_scan_start) 3180 return -EOPNOTSUPP; 3181 3182 return ieee80211_request_sched_scan_start(sdata, req); 3183 } 3184 3185 static int 3186 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 3187 u64 reqid) 3188 { 3189 struct ieee80211_local *local = wiphy_priv(wiphy); 3190 3191 if (!local->ops->sched_scan_stop) 3192 return -EOPNOTSUPP; 3193 3194 return ieee80211_request_sched_scan_stop(local); 3195 } 3196 3197 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 3198 struct cfg80211_auth_request *req) 3199 { 3200 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3201 } 3202 3203 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 3204 struct cfg80211_assoc_request *req) 3205 { 3206 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3207 } 3208 3209 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 3210 struct cfg80211_deauth_request *req) 3211 { 3212 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3213 } 3214 3215 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 3216 struct cfg80211_disassoc_request *req) 3217 { 3218 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3219 } 3220 3221 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 3222 struct cfg80211_ibss_params *params) 3223 { 3224 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 3225 } 3226 3227 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 3228 { 3229 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3230 } 3231 3232 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 3233 struct ocb_setup *setup) 3234 { 3235 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 3236 } 3237 3238 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 3239 { 3240 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3241 } 3242 3243 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 3244 int rate[NUM_NL80211_BANDS]) 3245 { 3246 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3247 3248 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3249 sizeof(int) * NUM_NL80211_BANDS); 3250 3251 if (ieee80211_sdata_running(sdata)) 3252 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3253 BSS_CHANGED_MCAST_RATE); 3254 3255 return 0; 3256 } 3257 3258 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx, 3259 u32 changed) 3260 { 3261 struct ieee80211_local *local = wiphy_priv(wiphy); 3262 int err; 3263 3264 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3265 ieee80211_check_fast_xmit_all(local); 3266 3267 err = drv_set_frag_threshold(local, radio_idx, 3268 wiphy->frag_threshold); 3269 3270 if (err) { 3271 ieee80211_check_fast_xmit_all(local); 3272 return err; 3273 } 3274 } 3275 3276 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3277 (changed & WIPHY_PARAM_DYN_ACK)) { 3278 s16 coverage_class; 3279 3280 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3281 wiphy->coverage_class : -1; 3282 err = drv_set_coverage_class(local, radio_idx, 3283 coverage_class); 3284 3285 if (err) 3286 return err; 3287 } 3288 3289 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3290 u32 rts_threshold; 3291 3292 if ((radio_idx == -1) || (radio_idx >= wiphy->n_radio)) 3293 rts_threshold = wiphy->rts_threshold; 3294 else 3295 rts_threshold = 3296 wiphy->radio_cfg[radio_idx].rts_threshold; 3297 3298 err = drv_set_rts_threshold(local, radio_idx, rts_threshold); 3299 3300 if (err) 3301 return err; 3302 } 3303 3304 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3305 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3306 return -EINVAL; 3307 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3308 } 3309 if (changed & WIPHY_PARAM_RETRY_LONG) { 3310 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3311 return -EINVAL; 3312 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3313 } 3314 if (changed & 3315 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3316 ieee80211_hw_config(local, radio_idx, 3317 IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3318 3319 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3320 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3321 WIPHY_PARAM_TXQ_QUANTUM)) 3322 ieee80211_txq_set_params(local, radio_idx); 3323 3324 return 0; 3325 } 3326 3327 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3328 struct wireless_dev *wdev, int radio_idx, 3329 enum nl80211_tx_power_setting type, int mbm) 3330 { 3331 struct ieee80211_local *local = wiphy_priv(wiphy); 3332 struct ieee80211_sub_if_data *sdata; 3333 enum nl80211_tx_power_setting txp_type = type; 3334 bool update_txp_type = false; 3335 bool has_monitor = false; 3336 int user_power_level; 3337 int old_power = local->user_power_level; 3338 3339 lockdep_assert_wiphy(local->hw.wiphy); 3340 3341 switch (type) { 3342 case NL80211_TX_POWER_AUTOMATIC: 3343 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3344 txp_type = NL80211_TX_POWER_LIMITED; 3345 break; 3346 case NL80211_TX_POWER_LIMITED: 3347 case NL80211_TX_POWER_FIXED: 3348 if (mbm < 0 || (mbm % 100)) 3349 return -EOPNOTSUPP; 3350 user_power_level = MBM_TO_DBM(mbm); 3351 break; 3352 default: 3353 return -EINVAL; 3354 } 3355 3356 if (wdev) { 3357 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3358 3359 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3360 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3361 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3362 return -EOPNOTSUPP; 3363 3364 sdata = wiphy_dereference(local->hw.wiphy, 3365 local->monitor_sdata); 3366 if (!sdata) 3367 return -EOPNOTSUPP; 3368 } 3369 3370 for (int link_id = 0; 3371 link_id < ARRAY_SIZE(sdata->link); 3372 link_id++) { 3373 struct ieee80211_link_data *link = 3374 wiphy_dereference(wiphy, sdata->link[link_id]); 3375 3376 if (!link) 3377 continue; 3378 3379 link->user_power_level = user_power_level; 3380 3381 if (txp_type != link->conf->txpower_type) { 3382 update_txp_type = true; 3383 link->conf->txpower_type = txp_type; 3384 } 3385 3386 ieee80211_recalc_txpower(link, update_txp_type); 3387 } 3388 return 0; 3389 } 3390 3391 local->user_power_level = user_power_level; 3392 3393 list_for_each_entry(sdata, &local->interfaces, list) { 3394 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3395 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3396 has_monitor = true; 3397 continue; 3398 } 3399 3400 for (int link_id = 0; 3401 link_id < ARRAY_SIZE(sdata->link); 3402 link_id++) { 3403 struct ieee80211_link_data *link = 3404 wiphy_dereference(wiphy, sdata->link[link_id]); 3405 3406 if (!link) 3407 continue; 3408 3409 link->user_power_level = local->user_power_level; 3410 if (txp_type != link->conf->txpower_type) 3411 update_txp_type = true; 3412 link->conf->txpower_type = txp_type; 3413 } 3414 } 3415 list_for_each_entry(sdata, &local->interfaces, list) { 3416 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3417 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3418 continue; 3419 3420 for (int link_id = 0; 3421 link_id < ARRAY_SIZE(sdata->link); 3422 link_id++) { 3423 struct ieee80211_link_data *link = 3424 wiphy_dereference(wiphy, sdata->link[link_id]); 3425 3426 if (!link) 3427 continue; 3428 3429 ieee80211_recalc_txpower(link, update_txp_type); 3430 } 3431 } 3432 3433 if (has_monitor) { 3434 sdata = wiphy_dereference(local->hw.wiphy, 3435 local->monitor_sdata); 3436 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3437 sdata->deflink.user_power_level = local->user_power_level; 3438 if (txp_type != sdata->vif.bss_conf.txpower_type) 3439 update_txp_type = true; 3440 sdata->vif.bss_conf.txpower_type = txp_type; 3441 3442 ieee80211_recalc_txpower(&sdata->deflink, 3443 update_txp_type); 3444 } 3445 } 3446 3447 if (local->emulate_chanctx && 3448 (old_power != local->user_power_level)) 3449 ieee80211_hw_conf_chan(local); 3450 3451 return 0; 3452 } 3453 3454 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3455 struct wireless_dev *wdev, 3456 int radio_idx, 3457 unsigned int link_id, 3458 int *dbm) 3459 { 3460 struct ieee80211_local *local = wiphy_priv(wiphy); 3461 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3462 struct ieee80211_link_data *link_data; 3463 3464 if (local->ops->get_txpower && 3465 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3466 return drv_get_txpower(local, sdata, link_id, dbm); 3467 3468 if (local->emulate_chanctx) { 3469 *dbm = local->hw.conf.power_level; 3470 } else { 3471 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3472 3473 if (link_data) 3474 *dbm = link_data->conf->txpower; 3475 else 3476 return -ENOLINK; 3477 } 3478 3479 /* INT_MIN indicates no power level was set yet */ 3480 if (*dbm == INT_MIN) 3481 return -EINVAL; 3482 3483 return 0; 3484 } 3485 3486 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3487 { 3488 struct ieee80211_local *local = wiphy_priv(wiphy); 3489 3490 drv_rfkill_poll(local); 3491 } 3492 3493 #ifdef CONFIG_NL80211_TESTMODE 3494 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3495 struct wireless_dev *wdev, 3496 void *data, int len) 3497 { 3498 struct ieee80211_local *local = wiphy_priv(wiphy); 3499 struct ieee80211_vif *vif = NULL; 3500 3501 if (!local->ops->testmode_cmd) 3502 return -EOPNOTSUPP; 3503 3504 if (wdev) { 3505 struct ieee80211_sub_if_data *sdata; 3506 3507 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3508 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3509 vif = &sdata->vif; 3510 } 3511 3512 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3513 } 3514 3515 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3516 struct sk_buff *skb, 3517 struct netlink_callback *cb, 3518 void *data, int len) 3519 { 3520 struct ieee80211_local *local = wiphy_priv(wiphy); 3521 3522 if (!local->ops->testmode_dump) 3523 return -EOPNOTSUPP; 3524 3525 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3526 } 3527 #endif 3528 3529 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3530 struct ieee80211_link_data *link, 3531 enum ieee80211_smps_mode smps_mode) 3532 { 3533 const u8 *ap; 3534 enum ieee80211_smps_mode old_req; 3535 int err; 3536 struct sta_info *sta; 3537 bool tdls_peer_found = false; 3538 3539 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3540 3541 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3542 return -EINVAL; 3543 3544 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3545 return 0; 3546 3547 old_req = link->u.mgd.req_smps; 3548 link->u.mgd.req_smps = smps_mode; 3549 3550 /* The driver indicated that EML is enabled for the interface, which 3551 * implies that SMPS flows towards the AP should be stopped. 3552 */ 3553 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3554 return 0; 3555 3556 if (old_req == smps_mode && 3557 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3558 return 0; 3559 3560 /* 3561 * If not associated, or current association is not an HT 3562 * association, there's no need to do anything, just store 3563 * the new value until we associate. 3564 */ 3565 if (!sdata->u.mgd.associated || 3566 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3567 return 0; 3568 3569 ap = sdata->vif.cfg.ap_addr; 3570 3571 rcu_read_lock(); 3572 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3573 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3574 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3575 continue; 3576 3577 tdls_peer_found = true; 3578 break; 3579 } 3580 rcu_read_unlock(); 3581 3582 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3583 if (tdls_peer_found || !sdata->u.mgd.powersave) 3584 smps_mode = IEEE80211_SMPS_OFF; 3585 else 3586 smps_mode = IEEE80211_SMPS_DYNAMIC; 3587 } 3588 3589 /* send SM PS frame to AP */ 3590 err = ieee80211_send_smps_action(sdata, smps_mode, 3591 ap, ap, 3592 ieee80211_vif_is_mld(&sdata->vif) ? 3593 link->link_id : -1); 3594 if (err) 3595 link->u.mgd.req_smps = old_req; 3596 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3597 ieee80211_teardown_tdls_peers(link); 3598 3599 return err; 3600 } 3601 3602 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3603 bool enabled, int timeout) 3604 { 3605 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3606 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3607 unsigned int link_id; 3608 3609 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3610 return -EOPNOTSUPP; 3611 3612 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3613 return -EOPNOTSUPP; 3614 3615 if (enabled == sdata->u.mgd.powersave && 3616 timeout == local->dynamic_ps_forced_timeout) 3617 return 0; 3618 3619 sdata->u.mgd.powersave = enabled; 3620 local->dynamic_ps_forced_timeout = timeout; 3621 3622 /* no change, but if automatic follow powersave */ 3623 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3624 struct ieee80211_link_data *link; 3625 3626 link = sdata_dereference(sdata->link[link_id], sdata); 3627 3628 if (!link) 3629 continue; 3630 __ieee80211_request_smps_mgd(sdata, link, 3631 link->u.mgd.req_smps); 3632 } 3633 3634 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3635 ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS); 3636 3637 ieee80211_recalc_ps(local); 3638 ieee80211_recalc_ps_vif(sdata); 3639 ieee80211_check_fast_rx_iface(sdata); 3640 3641 return 0; 3642 } 3643 3644 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3645 struct ieee80211_link_data *link, 3646 s32 rssi_thold, u32 rssi_hyst, 3647 s32 rssi_low, s32 rssi_high) 3648 { 3649 struct ieee80211_bss_conf *conf; 3650 3651 if (!link || !link->conf) 3652 return; 3653 3654 conf = link->conf; 3655 3656 if (rssi_thold && rssi_hyst && 3657 rssi_thold == conf->cqm_rssi_thold && 3658 rssi_hyst == conf->cqm_rssi_hyst) 3659 return; 3660 3661 conf->cqm_rssi_thold = rssi_thold; 3662 conf->cqm_rssi_hyst = rssi_hyst; 3663 conf->cqm_rssi_low = rssi_low; 3664 conf->cqm_rssi_high = rssi_high; 3665 link->u.mgd.last_cqm_event_signal = 0; 3666 3667 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3668 return; 3669 3670 if (sdata->u.mgd.associated && 3671 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3672 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3673 } 3674 3675 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3676 struct net_device *dev, 3677 s32 rssi_thold, u32 rssi_hyst) 3678 { 3679 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3680 struct ieee80211_vif *vif = &sdata->vif; 3681 int link_id; 3682 3683 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3684 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3685 return -EOPNOTSUPP; 3686 3687 /* For MLD, handle CQM change on all the active links */ 3688 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3689 struct ieee80211_link_data *link = 3690 sdata_dereference(sdata->link[link_id], sdata); 3691 3692 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3693 0, 0); 3694 } 3695 3696 return 0; 3697 } 3698 3699 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3700 struct net_device *dev, 3701 s32 rssi_low, s32 rssi_high) 3702 { 3703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3704 struct ieee80211_vif *vif = &sdata->vif; 3705 int link_id; 3706 3707 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3708 return -EOPNOTSUPP; 3709 3710 /* For MLD, handle CQM change on all the active links */ 3711 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3712 struct ieee80211_link_data *link = 3713 sdata_dereference(sdata->link[link_id], sdata); 3714 3715 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3716 rssi_low, rssi_high); 3717 } 3718 3719 return 0; 3720 } 3721 3722 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3723 struct net_device *dev, 3724 unsigned int link_id, 3725 const u8 *addr, 3726 const struct cfg80211_bitrate_mask *mask) 3727 { 3728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3729 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3730 int i, ret; 3731 3732 if (!ieee80211_sdata_running(sdata)) 3733 return -ENETDOWN; 3734 3735 /* 3736 * If active validate the setting and reject it if it doesn't leave 3737 * at least one basic rate usable, since we really have to be able 3738 * to send something, and if we're an AP we have to be able to do 3739 * so at a basic rate so that all clients can receive it. 3740 */ 3741 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3742 sdata->vif.bss_conf.chanreq.oper.chan) { 3743 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3744 enum nl80211_band band; 3745 3746 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3747 3748 if (!(mask->control[band].legacy & basic_rates)) 3749 return -EINVAL; 3750 } 3751 3752 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3753 ret = drv_set_bitrate_mask(local, sdata, mask); 3754 if (ret) 3755 return ret; 3756 } 3757 3758 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3759 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3760 int j; 3761 3762 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3763 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3764 sizeof(mask->control[i].ht_mcs)); 3765 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3766 mask->control[i].vht_mcs, 3767 sizeof(mask->control[i].vht_mcs)); 3768 3769 sdata->rc_has_mcs_mask[i] = false; 3770 sdata->rc_has_vht_mcs_mask[i] = false; 3771 if (!sband) 3772 continue; 3773 3774 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3775 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3776 sdata->rc_has_mcs_mask[i] = true; 3777 break; 3778 } 3779 } 3780 3781 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3782 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3783 sdata->rc_has_vht_mcs_mask[i] = true; 3784 break; 3785 } 3786 } 3787 } 3788 3789 return 0; 3790 } 3791 3792 static bool ieee80211_is_scan_ongoing(struct wiphy *wiphy, 3793 struct ieee80211_local *local, 3794 struct cfg80211_chan_def *chandef) 3795 { 3796 struct cfg80211_scan_request *scan_req; 3797 int chan_radio_idx, req_radio_idx; 3798 struct ieee80211_roc_work *roc; 3799 3800 if (list_empty(&local->roc_list) && !local->scanning) 3801 return false; 3802 3803 req_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chandef->chan); 3804 3805 if (local->scanning) { 3806 scan_req = wiphy_dereference(wiphy, local->scan_req); 3807 /* 3808 * Scan is going on but info is not there. Should not happen 3809 * but if it does, let's not take risk and assume we can't use 3810 * the hw hence return true 3811 */ 3812 if (WARN_ON_ONCE(!scan_req)) 3813 return true; 3814 3815 return ieee80211_is_radio_idx_in_scan_req(wiphy, scan_req, 3816 req_radio_idx); 3817 } 3818 3819 list_for_each_entry(roc, &local->roc_list, list) { 3820 chan_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, 3821 roc->chan); 3822 if (chan_radio_idx == req_radio_idx) 3823 return true; 3824 } 3825 3826 return false; 3827 } 3828 3829 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3830 struct net_device *dev, 3831 struct cfg80211_chan_def *chandef, 3832 u32 cac_time_ms, int link_id) 3833 { 3834 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3835 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3836 struct ieee80211_local *local = sdata->local; 3837 struct ieee80211_link_data *link_data; 3838 int err; 3839 3840 lockdep_assert_wiphy(local->hw.wiphy); 3841 3842 if (ieee80211_is_scan_ongoing(wiphy, local, chandef)) 3843 return -EBUSY; 3844 3845 link_data = sdata_dereference(sdata->link[link_id], sdata); 3846 if (!link_data) 3847 return -ENOLINK; 3848 3849 /* whatever, but channel contexts should not complain about that one */ 3850 link_data->smps_mode = IEEE80211_SMPS_OFF; 3851 link_data->needed_rx_chains = local->rx_chains; 3852 3853 err = ieee80211_link_use_channel(link_data, &chanreq, 3854 IEEE80211_CHANCTX_SHARED); 3855 if (err) 3856 return err; 3857 3858 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3859 msecs_to_jiffies(cac_time_ms)); 3860 3861 return 0; 3862 } 3863 3864 static void ieee80211_end_cac(struct wiphy *wiphy, 3865 struct net_device *dev, unsigned int link_id) 3866 { 3867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3868 struct ieee80211_local *local = sdata->local; 3869 struct ieee80211_link_data *link_data; 3870 3871 lockdep_assert_wiphy(local->hw.wiphy); 3872 3873 list_for_each_entry(sdata, &local->interfaces, list) { 3874 link_data = sdata_dereference(sdata->link[link_id], sdata); 3875 if (!link_data) 3876 continue; 3877 3878 wiphy_delayed_work_cancel(wiphy, 3879 &link_data->dfs_cac_timer_work); 3880 3881 if (sdata->wdev.links[link_id].cac_started) { 3882 ieee80211_link_release_channel(link_data); 3883 sdata->wdev.links[link_id].cac_started = false; 3884 } 3885 } 3886 } 3887 3888 static struct cfg80211_beacon_data * 3889 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3890 { 3891 struct cfg80211_beacon_data *new_beacon; 3892 u8 *pos; 3893 int len; 3894 3895 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3896 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3897 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3898 3899 if (beacon->mbssid_ies) 3900 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3901 beacon->rnr_ies, 3902 beacon->mbssid_ies->cnt); 3903 3904 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3905 if (!new_beacon) 3906 return NULL; 3907 3908 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3909 new_beacon->mbssid_ies = 3910 kzalloc(struct_size(new_beacon->mbssid_ies, 3911 elem, beacon->mbssid_ies->cnt), 3912 GFP_KERNEL); 3913 if (!new_beacon->mbssid_ies) { 3914 kfree(new_beacon); 3915 return NULL; 3916 } 3917 3918 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3919 new_beacon->rnr_ies = 3920 kzalloc(struct_size(new_beacon->rnr_ies, 3921 elem, beacon->rnr_ies->cnt), 3922 GFP_KERNEL); 3923 if (!new_beacon->rnr_ies) { 3924 kfree(new_beacon->mbssid_ies); 3925 kfree(new_beacon); 3926 return NULL; 3927 } 3928 } 3929 } 3930 3931 pos = (u8 *)(new_beacon + 1); 3932 if (beacon->head_len) { 3933 new_beacon->head_len = beacon->head_len; 3934 new_beacon->head = pos; 3935 memcpy(pos, beacon->head, beacon->head_len); 3936 pos += beacon->head_len; 3937 } 3938 if (beacon->tail_len) { 3939 new_beacon->tail_len = beacon->tail_len; 3940 new_beacon->tail = pos; 3941 memcpy(pos, beacon->tail, beacon->tail_len); 3942 pos += beacon->tail_len; 3943 } 3944 if (beacon->beacon_ies_len) { 3945 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3946 new_beacon->beacon_ies = pos; 3947 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3948 pos += beacon->beacon_ies_len; 3949 } 3950 if (beacon->proberesp_ies_len) { 3951 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3952 new_beacon->proberesp_ies = pos; 3953 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3954 pos += beacon->proberesp_ies_len; 3955 } 3956 if (beacon->assocresp_ies_len) { 3957 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3958 new_beacon->assocresp_ies = pos; 3959 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3960 pos += beacon->assocresp_ies_len; 3961 } 3962 if (beacon->probe_resp_len) { 3963 new_beacon->probe_resp_len = beacon->probe_resp_len; 3964 new_beacon->probe_resp = pos; 3965 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3966 pos += beacon->probe_resp_len; 3967 } 3968 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3969 pos += ieee80211_copy_mbssid_beacon(pos, 3970 new_beacon->mbssid_ies, 3971 beacon->mbssid_ies); 3972 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3973 pos += ieee80211_copy_rnr_beacon(pos, 3974 new_beacon->rnr_ies, 3975 beacon->rnr_ies); 3976 } 3977 3978 /* might copy -1, meaning no changes requested */ 3979 new_beacon->ftm_responder = beacon->ftm_responder; 3980 if (beacon->lci) { 3981 new_beacon->lci_len = beacon->lci_len; 3982 new_beacon->lci = pos; 3983 memcpy(pos, beacon->lci, beacon->lci_len); 3984 pos += beacon->lci_len; 3985 } 3986 if (beacon->civicloc) { 3987 new_beacon->civicloc_len = beacon->civicloc_len; 3988 new_beacon->civicloc = pos; 3989 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3990 pos += beacon->civicloc_len; 3991 } 3992 3993 return new_beacon; 3994 } 3995 3996 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3997 { 3998 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3999 struct ieee80211_local *local = sdata->local; 4000 struct ieee80211_bss_conf *tx_bss_conf; 4001 struct ieee80211_link_data *link_data; 4002 4003 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4004 return; 4005 4006 rcu_read_lock(); 4007 4008 link_data = rcu_dereference(sdata->link[link_id]); 4009 if (WARN_ON(!link_data)) { 4010 rcu_read_unlock(); 4011 return; 4012 } 4013 4014 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf); 4015 if (tx_bss_conf == link_data->conf) { 4016 /* Trigger ieee80211_csa_finish() on the non-transmitting 4017 * interfaces when channel switch is received on 4018 * transmitting interface 4019 */ 4020 struct ieee80211_link_data *iter; 4021 4022 for_each_sdata_link_rcu(local, iter) { 4023 if (iter->sdata == sdata || 4024 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf) 4025 continue; 4026 4027 wiphy_work_queue(iter->sdata->local->hw.wiphy, 4028 &iter->csa.finalize_work); 4029 } 4030 } 4031 4032 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 4033 4034 rcu_read_unlock(); 4035 } 4036 EXPORT_SYMBOL(ieee80211_csa_finish); 4037 4038 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 4039 { 4040 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4041 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4042 struct ieee80211_local *local = sdata->local; 4043 4044 sdata_info(sdata, "channel switch failed, disconnecting\n"); 4045 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 4046 } 4047 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 4048 4049 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 4050 u64 *changed) 4051 { 4052 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4053 int err; 4054 4055 switch (sdata->vif.type) { 4056 case NL80211_IFTYPE_AP: 4057 if (!link_data->u.ap.next_beacon) 4058 return -EINVAL; 4059 4060 err = ieee80211_assign_beacon(sdata, link_data, 4061 link_data->u.ap.next_beacon, 4062 NULL, NULL, changed); 4063 ieee80211_free_next_beacon(link_data); 4064 4065 if (err < 0) 4066 return err; 4067 break; 4068 case NL80211_IFTYPE_ADHOC: 4069 err = ieee80211_ibss_finish_csa(sdata, changed); 4070 if (err < 0) 4071 return err; 4072 break; 4073 #ifdef CONFIG_MAC80211_MESH 4074 case NL80211_IFTYPE_MESH_POINT: 4075 err = ieee80211_mesh_finish_csa(sdata, changed); 4076 if (err < 0) 4077 return err; 4078 break; 4079 #endif 4080 default: 4081 WARN_ON(1); 4082 return -EINVAL; 4083 } 4084 4085 return 0; 4086 } 4087 4088 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4089 { 4090 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4091 struct ieee80211_local *local = sdata->local; 4092 struct ieee80211_bss_conf *link_conf = link_data->conf; 4093 u64 changed = 0; 4094 int err; 4095 4096 lockdep_assert_wiphy(local->hw.wiphy); 4097 4098 /* 4099 * using reservation isn't immediate as it may be deferred until later 4100 * with multi-vif. once reservation is complete it will re-schedule the 4101 * work with no reserved_chanctx so verify chandef to check if it 4102 * completed successfully 4103 */ 4104 4105 if (link_data->reserved_chanctx) { 4106 /* 4107 * with multi-vif csa driver may call ieee80211_csa_finish() 4108 * many times while waiting for other interfaces to use their 4109 * reservations 4110 */ 4111 if (link_data->reserved_ready) 4112 return 0; 4113 4114 return ieee80211_link_use_reserved_context(link_data); 4115 } 4116 4117 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 4118 &link_data->csa.chanreq.oper)) 4119 return -EINVAL; 4120 4121 link_conf->csa_active = false; 4122 4123 err = ieee80211_set_after_csa_beacon(link_data, &changed); 4124 if (err) 4125 return err; 4126 4127 ieee80211_link_info_change_notify(sdata, link_data, changed); 4128 4129 ieee80211_vif_unblock_queues_csa(sdata); 4130 4131 err = drv_post_channel_switch(link_data); 4132 if (err) 4133 return err; 4134 4135 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 4136 link_data->link_id); 4137 4138 return 0; 4139 } 4140 4141 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4142 { 4143 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4144 4145 if (__ieee80211_csa_finalize(link_data)) { 4146 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 4147 link_data->link_id); 4148 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 4149 GFP_KERNEL); 4150 } 4151 } 4152 4153 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 4154 { 4155 struct ieee80211_link_data *link = 4156 container_of(work, struct ieee80211_link_data, csa.finalize_work); 4157 struct ieee80211_sub_if_data *sdata = link->sdata; 4158 struct ieee80211_local *local = sdata->local; 4159 4160 lockdep_assert_wiphy(local->hw.wiphy); 4161 4162 /* AP might have been stopped while waiting for the lock. */ 4163 if (!link->conf->csa_active) 4164 return; 4165 4166 if (!ieee80211_sdata_running(sdata)) 4167 return; 4168 4169 ieee80211_csa_finalize(link); 4170 } 4171 4172 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 4173 struct cfg80211_csa_settings *params, 4174 u64 *changed) 4175 { 4176 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4177 struct ieee80211_csa_settings csa = {}; 4178 int err; 4179 4180 switch (sdata->vif.type) { 4181 case NL80211_IFTYPE_AP: 4182 link_data->u.ap.next_beacon = 4183 cfg80211_beacon_dup(¶ms->beacon_after); 4184 if (!link_data->u.ap.next_beacon) 4185 return -ENOMEM; 4186 4187 /* 4188 * With a count of 0, we don't have to wait for any 4189 * TBTT before switching, so complete the CSA 4190 * immediately. In theory, with a count == 1 we 4191 * should delay the switch until just before the next 4192 * TBTT, but that would complicate things so we switch 4193 * immediately too. If we would delay the switch 4194 * until the next TBTT, we would have to set the probe 4195 * response here. 4196 * 4197 * TODO: A channel switch with count <= 1 without 4198 * sending a CSA action frame is kind of useless, 4199 * because the clients won't know we're changing 4200 * channels. The action frame must be implemented 4201 * either here or in the userspace. 4202 */ 4203 if (params->count <= 1) 4204 break; 4205 4206 if ((params->n_counter_offsets_beacon > 4207 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 4208 (params->n_counter_offsets_presp > 4209 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 4210 ieee80211_free_next_beacon(link_data); 4211 return -EINVAL; 4212 } 4213 4214 csa.counter_offsets_beacon = params->counter_offsets_beacon; 4215 csa.counter_offsets_presp = params->counter_offsets_presp; 4216 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 4217 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 4218 csa.count = params->count; 4219 4220 err = ieee80211_assign_beacon(sdata, link_data, 4221 ¶ms->beacon_csa, &csa, 4222 NULL, changed); 4223 if (err < 0) { 4224 ieee80211_free_next_beacon(link_data); 4225 return err; 4226 } 4227 4228 break; 4229 case NL80211_IFTYPE_ADHOC: 4230 if (!sdata->vif.cfg.ibss_joined) 4231 return -EINVAL; 4232 4233 if (params->chandef.width != sdata->u.ibss.chandef.width) 4234 return -EINVAL; 4235 4236 switch (params->chandef.width) { 4237 case NL80211_CHAN_WIDTH_40: 4238 if (cfg80211_get_chandef_type(¶ms->chandef) != 4239 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 4240 return -EINVAL; 4241 break; 4242 case NL80211_CHAN_WIDTH_5: 4243 case NL80211_CHAN_WIDTH_10: 4244 case NL80211_CHAN_WIDTH_20_NOHT: 4245 case NL80211_CHAN_WIDTH_20: 4246 break; 4247 default: 4248 return -EINVAL; 4249 } 4250 4251 /* changes into another band are not supported */ 4252 if (sdata->u.ibss.chandef.chan->band != 4253 params->chandef.chan->band) 4254 return -EINVAL; 4255 4256 /* see comments in the NL80211_IFTYPE_AP block */ 4257 if (params->count > 1) { 4258 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 4259 if (err < 0) 4260 return err; 4261 } 4262 4263 ieee80211_send_action_csa(sdata, params); 4264 4265 break; 4266 #ifdef CONFIG_MAC80211_MESH 4267 case NL80211_IFTYPE_MESH_POINT: { 4268 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4269 4270 /* changes into another band are not supported */ 4271 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 4272 params->chandef.chan->band) 4273 return -EINVAL; 4274 4275 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 4276 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 4277 if (!ifmsh->pre_value) 4278 ifmsh->pre_value = 1; 4279 else 4280 ifmsh->pre_value++; 4281 } 4282 4283 /* see comments in the NL80211_IFTYPE_AP block */ 4284 if (params->count > 1) { 4285 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 4286 if (err < 0) { 4287 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 4288 return err; 4289 } 4290 } 4291 4292 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 4293 ieee80211_send_action_csa(sdata, params); 4294 4295 break; 4296 } 4297 #endif 4298 default: 4299 return -EOPNOTSUPP; 4300 } 4301 4302 return 0; 4303 } 4304 4305 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4306 { 4307 link->conf->color_change_active = false; 4308 4309 ieee80211_free_next_beacon(link); 4310 4311 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4312 } 4313 4314 static int 4315 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4316 struct cfg80211_csa_settings *params) 4317 { 4318 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4319 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4320 struct ieee80211_local *local = sdata->local; 4321 struct ieee80211_channel_switch ch_switch = { 4322 .link_id = params->link_id, 4323 }; 4324 struct ieee80211_chanctx_conf *conf; 4325 struct ieee80211_chanctx *chanctx; 4326 struct ieee80211_bss_conf *link_conf; 4327 struct ieee80211_link_data *link_data; 4328 u64 changed = 0; 4329 u8 link_id = params->link_id; 4330 int err; 4331 4332 lockdep_assert_wiphy(local->hw.wiphy); 4333 4334 if (ieee80211_is_scan_ongoing(wiphy, local, ¶ms->chandef)) 4335 return -EBUSY; 4336 4337 if (sdata->wdev.links[link_id].cac_started) 4338 return -EBUSY; 4339 4340 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4341 return -EINVAL; 4342 4343 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4344 if (!link_data) 4345 return -ENOLINK; 4346 4347 link_conf = link_data->conf; 4348 4349 if (chanreq.oper.punctured && !link_conf->eht_support) 4350 return -EINVAL; 4351 4352 /* don't allow another channel switch if one is already active. */ 4353 if (link_conf->csa_active) 4354 return -EBUSY; 4355 4356 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4357 if (!conf) { 4358 err = -EBUSY; 4359 goto out; 4360 } 4361 4362 if (params->chandef.chan->freq_offset) { 4363 /* this may work, but is untested */ 4364 err = -EOPNOTSUPP; 4365 goto out; 4366 } 4367 4368 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 4369 ¶ms->unsol_bcast_probe_resp, 4370 link_data, link_conf, &changed); 4371 if (err) 4372 goto out; 4373 4374 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4375 4376 ch_switch.timestamp = 0; 4377 ch_switch.device_timestamp = 0; 4378 ch_switch.block_tx = params->block_tx; 4379 ch_switch.chandef = chanreq.oper; 4380 ch_switch.count = params->count; 4381 4382 err = drv_pre_channel_switch(sdata, &ch_switch); 4383 if (err) 4384 goto out; 4385 4386 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4387 chanctx->mode, 4388 params->radar_required); 4389 if (err) 4390 goto out; 4391 4392 /* if reservation is invalid then this will fail */ 4393 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4394 if (err) { 4395 ieee80211_link_unreserve_chanctx(link_data); 4396 goto out; 4397 } 4398 4399 /* if there is a color change in progress, abort it */ 4400 if (link_conf->color_change_active) 4401 ieee80211_color_change_abort(link_data); 4402 4403 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4404 if (err) { 4405 ieee80211_link_unreserve_chanctx(link_data); 4406 goto out; 4407 } 4408 4409 link_data->csa.chanreq = chanreq; 4410 link_conf->csa_active = true; 4411 4412 if (params->block_tx) 4413 ieee80211_vif_block_queues_csa(sdata); 4414 4415 cfg80211_ch_switch_started_notify(sdata->dev, 4416 &link_data->csa.chanreq.oper, link_id, 4417 params->count, params->block_tx); 4418 4419 if (changed) { 4420 ieee80211_link_info_change_notify(sdata, link_data, changed); 4421 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4422 } else { 4423 /* if the beacon didn't change, we can finalize immediately */ 4424 ieee80211_csa_finalize(link_data); 4425 } 4426 4427 out: 4428 return err; 4429 } 4430 4431 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4432 struct cfg80211_csa_settings *params) 4433 { 4434 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4435 struct ieee80211_local *local = sdata->local; 4436 4437 lockdep_assert_wiphy(local->hw.wiphy); 4438 4439 return __ieee80211_channel_switch(wiphy, dev, params); 4440 } 4441 4442 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4443 { 4444 lockdep_assert_wiphy(local->hw.wiphy); 4445 4446 local->roc_cookie_counter++; 4447 4448 /* wow, you wrapped 64 bits ... more likely a bug */ 4449 if (WARN_ON(local->roc_cookie_counter == 0)) 4450 local->roc_cookie_counter++; 4451 4452 return local->roc_cookie_counter; 4453 } 4454 4455 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4456 u64 *cookie, gfp_t gfp) 4457 { 4458 unsigned long spin_flags; 4459 struct sk_buff *ack_skb; 4460 int id; 4461 4462 ack_skb = skb_copy(skb, gfp); 4463 if (!ack_skb) 4464 return -ENOMEM; 4465 4466 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4467 id = idr_alloc(&local->ack_status_frames, ack_skb, 4468 1, 0x2000, GFP_ATOMIC); 4469 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4470 4471 if (id < 0) { 4472 kfree_skb(ack_skb); 4473 return -ENOMEM; 4474 } 4475 4476 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4477 IEEE80211_SKB_CB(skb)->status_data = id; 4478 4479 *cookie = ieee80211_mgmt_tx_cookie(local); 4480 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4481 4482 return 0; 4483 } 4484 4485 static void 4486 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4487 struct wireless_dev *wdev, 4488 struct mgmt_frame_regs *upd) 4489 { 4490 struct ieee80211_local *local = wiphy_priv(wiphy); 4491 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4492 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4493 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4494 bool global_change, intf_change; 4495 4496 global_change = 4497 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4498 (local->rx_mcast_action_reg != 4499 !!(upd->global_mcast_stypes & action_mask)); 4500 local->probe_req_reg = upd->global_stypes & preq_mask; 4501 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4502 4503 intf_change = (sdata->vif.probe_req_reg != 4504 !!(upd->interface_stypes & preq_mask)) || 4505 (sdata->vif.rx_mcast_action_reg != 4506 !!(upd->interface_mcast_stypes & action_mask)); 4507 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4508 sdata->vif.rx_mcast_action_reg = 4509 upd->interface_mcast_stypes & action_mask; 4510 4511 if (!local->open_count) 4512 return; 4513 4514 if (intf_change && ieee80211_sdata_running(sdata)) 4515 drv_config_iface_filter(local, sdata, 4516 sdata->vif.probe_req_reg ? 4517 FIF_PROBE_REQ : 0, 4518 FIF_PROBE_REQ); 4519 4520 if (global_change) 4521 ieee80211_configure_filter(local); 4522 } 4523 4524 static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx, 4525 u32 tx_ant, u32 rx_ant) 4526 { 4527 struct ieee80211_local *local = wiphy_priv(wiphy); 4528 int ret; 4529 4530 if (local->started) 4531 return -EOPNOTSUPP; 4532 4533 ret = drv_set_antenna(local, tx_ant, rx_ant); 4534 if (ret) 4535 return ret; 4536 4537 local->rx_chains = hweight8(rx_ant); 4538 return 0; 4539 } 4540 4541 static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx, 4542 u32 *tx_ant, u32 *rx_ant) 4543 { 4544 struct ieee80211_local *local = wiphy_priv(wiphy); 4545 4546 return drv_get_antenna(local, radio_idx, tx_ant, rx_ant); 4547 } 4548 4549 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4550 struct net_device *dev, 4551 struct cfg80211_gtk_rekey_data *data) 4552 { 4553 struct ieee80211_local *local = wiphy_priv(wiphy); 4554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4555 4556 if (!local->ops->set_rekey_data) 4557 return -EOPNOTSUPP; 4558 4559 drv_set_rekey_data(local, sdata, data); 4560 4561 return 0; 4562 } 4563 4564 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4565 const u8 *peer, u64 *cookie) 4566 { 4567 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4568 struct ieee80211_local *local = sdata->local; 4569 struct ieee80211_qos_hdr *nullfunc; 4570 struct sk_buff *skb; 4571 int size = sizeof(*nullfunc); 4572 __le16 fc; 4573 bool qos; 4574 struct ieee80211_tx_info *info; 4575 struct sta_info *sta; 4576 struct ieee80211_chanctx_conf *chanctx_conf; 4577 enum nl80211_band band; 4578 int ret; 4579 4580 /* the lock is needed to assign the cookie later */ 4581 lockdep_assert_wiphy(local->hw.wiphy); 4582 4583 rcu_read_lock(); 4584 sta = sta_info_get_bss(sdata, peer); 4585 if (!sta) { 4586 ret = -ENOLINK; 4587 goto unlock; 4588 } 4589 4590 qos = sta->sta.wme; 4591 4592 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4593 if (WARN_ON(!chanctx_conf)) { 4594 ret = -EINVAL; 4595 goto unlock; 4596 } 4597 band = chanctx_conf->def.chan->band; 4598 4599 if (qos) { 4600 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4601 IEEE80211_STYPE_QOS_NULLFUNC | 4602 IEEE80211_FCTL_FROMDS); 4603 } else { 4604 size -= 2; 4605 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4606 IEEE80211_STYPE_NULLFUNC | 4607 IEEE80211_FCTL_FROMDS); 4608 } 4609 4610 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4611 if (!skb) { 4612 ret = -ENOMEM; 4613 goto unlock; 4614 } 4615 4616 skb->dev = dev; 4617 4618 skb_reserve(skb, local->hw.extra_tx_headroom); 4619 4620 nullfunc = skb_put(skb, size); 4621 nullfunc->frame_control = fc; 4622 nullfunc->duration_id = 0; 4623 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4624 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4625 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4626 nullfunc->seq_ctrl = 0; 4627 4628 info = IEEE80211_SKB_CB(skb); 4629 4630 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4631 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4632 info->band = band; 4633 4634 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4635 skb->priority = 7; 4636 if (qos) 4637 nullfunc->qos_ctrl = cpu_to_le16(7); 4638 4639 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4640 if (ret) { 4641 kfree_skb(skb); 4642 goto unlock; 4643 } 4644 4645 local_bh_disable(); 4646 ieee80211_xmit(sdata, sta, skb); 4647 local_bh_enable(); 4648 4649 ret = 0; 4650 unlock: 4651 rcu_read_unlock(); 4652 4653 return ret; 4654 } 4655 4656 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4657 struct wireless_dev *wdev, 4658 unsigned int link_id, 4659 struct cfg80211_chan_def *chandef) 4660 { 4661 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4662 struct ieee80211_local *local = wiphy_priv(wiphy); 4663 struct ieee80211_chanctx_conf *chanctx_conf; 4664 struct ieee80211_link_data *link; 4665 int ret = -ENODATA; 4666 4667 rcu_read_lock(); 4668 link = rcu_dereference(sdata->link[link_id]); 4669 if (!link) { 4670 ret = -ENOLINK; 4671 goto out; 4672 } 4673 4674 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4675 if (chanctx_conf) { 4676 *chandef = link->conf->chanreq.oper; 4677 ret = 0; 4678 } else if (local->open_count > 0 && 4679 local->open_count == local->virt_monitors && 4680 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4681 *chandef = local->monitor_chanreq.oper; 4682 ret = 0; 4683 } 4684 out: 4685 rcu_read_unlock(); 4686 4687 return ret; 4688 } 4689 4690 #ifdef CONFIG_PM 4691 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4692 { 4693 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4694 } 4695 #endif 4696 4697 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4698 struct net_device *dev, 4699 struct cfg80211_qos_map *qos_map) 4700 { 4701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4702 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4703 4704 if (qos_map) { 4705 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4706 if (!new_qos_map) 4707 return -ENOMEM; 4708 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4709 } else { 4710 /* A NULL qos_map was passed to disable QoS mapping */ 4711 new_qos_map = NULL; 4712 } 4713 4714 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4715 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4716 if (old_qos_map) 4717 kfree_rcu(old_qos_map, rcu_head); 4718 4719 return 0; 4720 } 4721 4722 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4723 struct net_device *dev, 4724 unsigned int link_id, 4725 struct cfg80211_chan_def *chandef) 4726 { 4727 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4728 struct ieee80211_link_data *link; 4729 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4730 int ret; 4731 u64 changed = 0; 4732 4733 link = sdata_dereference(sdata->link[link_id], sdata); 4734 4735 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4736 if (ret == 0) 4737 ieee80211_link_info_change_notify(sdata, link, changed); 4738 4739 return ret; 4740 } 4741 4742 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4743 u8 tsid, const u8 *peer, u8 up, 4744 u16 admitted_time) 4745 { 4746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4747 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4748 int ac = ieee802_1d_to_ac[up]; 4749 4750 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4751 return -EOPNOTSUPP; 4752 4753 if (!(sdata->wmm_acm & BIT(up))) 4754 return -EINVAL; 4755 4756 if (ifmgd->tx_tspec[ac].admitted_time) 4757 return -EBUSY; 4758 4759 if (admitted_time) { 4760 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4761 ifmgd->tx_tspec[ac].tsid = tsid; 4762 ifmgd->tx_tspec[ac].up = up; 4763 } 4764 4765 return 0; 4766 } 4767 4768 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4769 u8 tsid, const u8 *peer) 4770 { 4771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4772 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4773 struct ieee80211_local *local = wiphy_priv(wiphy); 4774 int ac; 4775 4776 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4777 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4778 4779 /* skip unused entries */ 4780 if (!tx_tspec->admitted_time) 4781 continue; 4782 4783 if (tx_tspec->tsid != tsid) 4784 continue; 4785 4786 /* due to this new packets will be reassigned to non-ACM ACs */ 4787 tx_tspec->up = -1; 4788 4789 /* Make sure that all packets have been sent to avoid to 4790 * restore the QoS params on packets that are still on the 4791 * queues. 4792 */ 4793 synchronize_net(); 4794 ieee80211_flush_queues(local, sdata, false); 4795 4796 /* restore the normal QoS parameters 4797 * (unconditionally to avoid races) 4798 */ 4799 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4800 tx_tspec->downgraded = false; 4801 ieee80211_sta_handle_tspec_ac_params(sdata); 4802 4803 /* finally clear all the data */ 4804 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4805 4806 return 0; 4807 } 4808 4809 return -ENOENT; 4810 } 4811 4812 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4813 u8 inst_id, 4814 enum nl80211_nan_func_term_reason reason, 4815 gfp_t gfp) 4816 { 4817 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4818 struct cfg80211_nan_func *func; 4819 u64 cookie; 4820 4821 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4822 return; 4823 4824 spin_lock_bh(&sdata->u.nan.func_lock); 4825 4826 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4827 if (WARN_ON(!func)) { 4828 spin_unlock_bh(&sdata->u.nan.func_lock); 4829 return; 4830 } 4831 4832 cookie = func->cookie; 4833 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4834 4835 spin_unlock_bh(&sdata->u.nan.func_lock); 4836 4837 cfg80211_free_nan_func(func); 4838 4839 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4840 reason, cookie, gfp); 4841 } 4842 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4843 4844 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4845 struct cfg80211_nan_match_params *match, 4846 gfp_t gfp) 4847 { 4848 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4849 struct cfg80211_nan_func *func; 4850 4851 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4852 return; 4853 4854 spin_lock_bh(&sdata->u.nan.func_lock); 4855 4856 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4857 if (WARN_ON(!func)) { 4858 spin_unlock_bh(&sdata->u.nan.func_lock); 4859 return; 4860 } 4861 match->cookie = func->cookie; 4862 4863 spin_unlock_bh(&sdata->u.nan.func_lock); 4864 4865 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4866 } 4867 EXPORT_SYMBOL(ieee80211_nan_func_match); 4868 4869 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4870 struct net_device *dev, 4871 const bool enabled) 4872 { 4873 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4874 4875 sdata->u.ap.multicast_to_unicast = enabled; 4876 4877 return 0; 4878 } 4879 4880 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4881 struct txq_info *txqi) 4882 { 4883 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4884 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4885 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4886 } 4887 4888 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4889 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4890 txqstats->backlog_packets = txqi->tin.backlog_packets; 4891 } 4892 4893 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4894 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4895 txqstats->flows = txqi->tin.flows; 4896 } 4897 4898 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4899 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4900 txqstats->drops = txqi->cstats.drop_count; 4901 } 4902 4903 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4904 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4905 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4906 } 4907 4908 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4909 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4910 txqstats->overlimit = txqi->tin.overlimit; 4911 } 4912 4913 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4914 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4915 txqstats->collisions = txqi->tin.collisions; 4916 } 4917 4918 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4919 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4920 txqstats->tx_bytes = txqi->tin.tx_bytes; 4921 } 4922 4923 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4924 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4925 txqstats->tx_packets = txqi->tin.tx_packets; 4926 } 4927 } 4928 4929 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4930 struct wireless_dev *wdev, 4931 struct cfg80211_txq_stats *txqstats) 4932 { 4933 struct ieee80211_local *local = wiphy_priv(wiphy); 4934 struct ieee80211_sub_if_data *sdata; 4935 int ret = 0; 4936 4937 spin_lock_bh(&local->fq.lock); 4938 4939 if (wdev) { 4940 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4941 if (!sdata->vif.txq) { 4942 ret = 1; 4943 goto out; 4944 } 4945 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4946 } else { 4947 /* phy stats */ 4948 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4949 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4950 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4951 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4952 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4953 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4954 txqstats->backlog_packets = local->fq.backlog; 4955 txqstats->backlog_bytes = local->fq.memory_usage; 4956 txqstats->overlimit = local->fq.overlimit; 4957 txqstats->overmemory = local->fq.overmemory; 4958 txqstats->collisions = local->fq.collisions; 4959 txqstats->max_flows = local->fq.flows_cnt; 4960 } 4961 4962 out: 4963 spin_unlock_bh(&local->fq.lock); 4964 4965 return ret; 4966 } 4967 4968 static int 4969 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4970 struct net_device *dev, 4971 struct cfg80211_ftm_responder_stats *ftm_stats) 4972 { 4973 struct ieee80211_local *local = wiphy_priv(wiphy); 4974 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4975 4976 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4977 } 4978 4979 static int 4980 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4981 struct cfg80211_pmsr_request *request) 4982 { 4983 struct ieee80211_local *local = wiphy_priv(wiphy); 4984 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4985 4986 return drv_start_pmsr(local, sdata, request); 4987 } 4988 4989 static void 4990 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4991 struct cfg80211_pmsr_request *request) 4992 { 4993 struct ieee80211_local *local = wiphy_priv(wiphy); 4994 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4995 4996 return drv_abort_pmsr(local, sdata, request); 4997 } 4998 4999 static int ieee80211_set_tid_config(struct wiphy *wiphy, 5000 struct net_device *dev, 5001 struct cfg80211_tid_config *tid_conf) 5002 { 5003 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5004 struct sta_info *sta; 5005 5006 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5007 5008 if (!sdata->local->ops->set_tid_config) 5009 return -EOPNOTSUPP; 5010 5011 if (!tid_conf->peer) 5012 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 5013 5014 sta = sta_info_get_bss(sdata, tid_conf->peer); 5015 if (!sta) 5016 return -ENOENT; 5017 5018 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 5019 } 5020 5021 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 5022 struct net_device *dev, 5023 const u8 *peer, u8 tids) 5024 { 5025 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5026 struct sta_info *sta; 5027 5028 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5029 5030 if (!sdata->local->ops->reset_tid_config) 5031 return -EOPNOTSUPP; 5032 5033 if (!peer) 5034 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 5035 5036 sta = sta_info_get_bss(sdata, peer); 5037 if (!sta) 5038 return -ENOENT; 5039 5040 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 5041 } 5042 5043 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 5044 struct cfg80211_sar_specs *sar) 5045 { 5046 struct ieee80211_local *local = wiphy_priv(wiphy); 5047 5048 if (!local->ops->set_sar_specs) 5049 return -EOPNOTSUPP; 5050 5051 return local->ops->set_sar_specs(&local->hw, sar); 5052 } 5053 5054 static int 5055 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 5056 u64 *changed) 5057 { 5058 struct ieee80211_sub_if_data *sdata = link->sdata; 5059 5060 switch (sdata->vif.type) { 5061 case NL80211_IFTYPE_AP: { 5062 int ret; 5063 5064 if (!link->u.ap.next_beacon) 5065 return -EINVAL; 5066 5067 ret = ieee80211_assign_beacon(sdata, link, 5068 link->u.ap.next_beacon, 5069 NULL, NULL, changed); 5070 ieee80211_free_next_beacon(link); 5071 5072 if (ret < 0) 5073 return ret; 5074 5075 break; 5076 } 5077 default: 5078 WARN_ON_ONCE(1); 5079 return -EINVAL; 5080 } 5081 5082 return 0; 5083 } 5084 5085 static int 5086 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 5087 struct cfg80211_color_change_settings *params, 5088 u64 *changed) 5089 { 5090 struct ieee80211_sub_if_data *sdata = link->sdata; 5091 struct ieee80211_color_change_settings color_change = {}; 5092 int err; 5093 5094 switch (sdata->vif.type) { 5095 case NL80211_IFTYPE_AP: 5096 link->u.ap.next_beacon = 5097 cfg80211_beacon_dup(¶ms->beacon_next); 5098 if (!link->u.ap.next_beacon) 5099 return -ENOMEM; 5100 5101 if (params->count <= 1) 5102 break; 5103 5104 color_change.counter_offset_beacon = 5105 params->counter_offset_beacon; 5106 color_change.counter_offset_presp = 5107 params->counter_offset_presp; 5108 color_change.count = params->count; 5109 5110 err = ieee80211_assign_beacon(sdata, link, 5111 ¶ms->beacon_color_change, 5112 NULL, &color_change, changed); 5113 if (err < 0) { 5114 ieee80211_free_next_beacon(link); 5115 return err; 5116 } 5117 break; 5118 default: 5119 return -EOPNOTSUPP; 5120 } 5121 5122 return 0; 5123 } 5124 5125 static void 5126 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 5127 u8 color, int enable, u64 changed) 5128 { 5129 struct ieee80211_sub_if_data *sdata = link->sdata; 5130 5131 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5132 5133 link->conf->he_bss_color.color = color; 5134 link->conf->he_bss_color.enabled = enable; 5135 changed |= BSS_CHANGED_HE_BSS_COLOR; 5136 5137 ieee80211_link_info_change_notify(sdata, link, changed); 5138 5139 if (!link->conf->nontransmitted && 5140 rcu_access_pointer(link->conf->tx_bss_conf)) { 5141 struct ieee80211_link_data *tmp; 5142 5143 for_each_sdata_link(sdata->local, tmp) { 5144 if (tmp->sdata == sdata || 5145 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf) 5146 continue; 5147 5148 tmp->conf->he_bss_color.color = color; 5149 tmp->conf->he_bss_color.enabled = enable; 5150 ieee80211_link_info_change_notify(tmp->sdata, tmp, 5151 BSS_CHANGED_HE_BSS_COLOR); 5152 } 5153 } 5154 } 5155 5156 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 5157 { 5158 struct ieee80211_sub_if_data *sdata = link->sdata; 5159 struct ieee80211_local *local = sdata->local; 5160 u64 changed = 0; 5161 int err; 5162 5163 lockdep_assert_wiphy(local->hw.wiphy); 5164 5165 link->conf->color_change_active = false; 5166 5167 err = ieee80211_set_after_color_change_beacon(link, &changed); 5168 if (err) { 5169 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 5170 return err; 5171 } 5172 5173 ieee80211_color_change_bss_config_notify(link, 5174 link->conf->color_change_color, 5175 1, changed); 5176 cfg80211_color_change_notify(sdata->dev, link->link_id); 5177 5178 return 0; 5179 } 5180 5181 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 5182 struct wiphy_work *work) 5183 { 5184 struct ieee80211_link_data *link = 5185 container_of(work, struct ieee80211_link_data, 5186 color_change_finalize_work); 5187 struct ieee80211_sub_if_data *sdata = link->sdata; 5188 struct ieee80211_bss_conf *link_conf = link->conf; 5189 struct ieee80211_local *local = sdata->local; 5190 5191 lockdep_assert_wiphy(local->hw.wiphy); 5192 5193 /* AP might have been stopped while waiting for the lock. */ 5194 if (!link_conf->color_change_active) 5195 return; 5196 5197 if (!ieee80211_sdata_running(sdata)) 5198 return; 5199 5200 ieee80211_color_change_finalize(link); 5201 } 5202 5203 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 5204 struct wiphy_work *work) 5205 { 5206 struct ieee80211_link_data *link = 5207 container_of(work, struct ieee80211_link_data, 5208 color_collision_detect_work.work); 5209 struct ieee80211_sub_if_data *sdata = link->sdata; 5210 5211 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 5212 link->link_id); 5213 } 5214 5215 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 5216 { 5217 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5218 struct ieee80211_link_data *link; 5219 5220 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5221 return; 5222 5223 rcu_read_lock(); 5224 5225 link = rcu_dereference(sdata->link[link_id]); 5226 if (WARN_ON(!link)) { 5227 rcu_read_unlock(); 5228 return; 5229 } 5230 5231 wiphy_work_queue(sdata->local->hw.wiphy, 5232 &link->color_change_finalize_work); 5233 5234 rcu_read_unlock(); 5235 } 5236 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 5237 5238 void 5239 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 5240 u64 color_bitmap, u8 link_id) 5241 { 5242 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5243 struct ieee80211_link_data *link; 5244 5245 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5246 return; 5247 5248 rcu_read_lock(); 5249 5250 link = rcu_dereference(sdata->link[link_id]); 5251 if (WARN_ON(!link)) { 5252 rcu_read_unlock(); 5253 return; 5254 } 5255 5256 if (link->conf->color_change_active || link->conf->csa_active) { 5257 rcu_read_unlock(); 5258 return; 5259 } 5260 5261 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 5262 &link->color_collision_detect_work)) { 5263 rcu_read_unlock(); 5264 return; 5265 } 5266 5267 link->color_bitmap = color_bitmap; 5268 /* queue the color collision detection event every 500 ms in order to 5269 * avoid sending too much netlink messages to userspace. 5270 */ 5271 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 5272 &link->color_collision_detect_work, 5273 msecs_to_jiffies(500)); 5274 5275 rcu_read_unlock(); 5276 } 5277 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 5278 5279 static int 5280 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 5281 struct cfg80211_color_change_settings *params) 5282 { 5283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5284 struct ieee80211_local *local = sdata->local; 5285 struct ieee80211_bss_conf *link_conf; 5286 struct ieee80211_link_data *link; 5287 u8 link_id = params->link_id; 5288 u64 changed = 0; 5289 int err; 5290 5291 lockdep_assert_wiphy(local->hw.wiphy); 5292 5293 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5294 return -EINVAL; 5295 5296 link = wiphy_dereference(wiphy, sdata->link[link_id]); 5297 if (!link) 5298 return -ENOLINK; 5299 5300 link_conf = link->conf; 5301 5302 if (link_conf->nontransmitted) 5303 return -EINVAL; 5304 5305 /* don't allow another color change if one is already active or if csa 5306 * is active 5307 */ 5308 if (link_conf->color_change_active || link_conf->csa_active) { 5309 err = -EBUSY; 5310 goto out; 5311 } 5312 5313 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 5314 ¶ms->unsol_bcast_probe_resp, 5315 link, link_conf, &changed); 5316 if (err) 5317 goto out; 5318 5319 err = ieee80211_set_color_change_beacon(link, params, &changed); 5320 if (err) 5321 goto out; 5322 5323 link_conf->color_change_active = true; 5324 link_conf->color_change_color = params->color; 5325 5326 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5327 5328 if (changed) 5329 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5330 else 5331 /* if the beacon didn't change, we can finalize immediately */ 5332 ieee80211_color_change_finalize(link); 5333 5334 out: 5335 5336 return err; 5337 } 5338 5339 static int 5340 ieee80211_set_radar_background(struct wiphy *wiphy, 5341 struct cfg80211_chan_def *chandef) 5342 { 5343 struct ieee80211_local *local = wiphy_priv(wiphy); 5344 5345 if (!local->ops->set_radar_background) 5346 return -EOPNOTSUPP; 5347 5348 return local->ops->set_radar_background(&local->hw, chandef); 5349 } 5350 5351 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5352 struct wireless_dev *wdev, 5353 unsigned int link_id) 5354 { 5355 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5356 5357 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5358 5359 if (wdev->use_4addr) 5360 return -EOPNOTSUPP; 5361 5362 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5363 } 5364 5365 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5366 struct wireless_dev *wdev, 5367 unsigned int link_id) 5368 { 5369 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5370 u16 new_links = wdev->valid_links & ~BIT(link_id); 5371 5372 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5373 5374 /* During the link teardown process, certain functions require the 5375 * link_id to remain in the valid_links bitmap. Therefore, instead 5376 * of removing the link_id from the bitmap, pass a masked value to 5377 * simulate as if link_id does not exist anymore. 5378 */ 5379 ieee80211_vif_set_links(sdata, new_links, 0); 5380 } 5381 5382 static int 5383 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5384 struct link_station_parameters *params) 5385 { 5386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5387 struct ieee80211_local *local = wiphy_priv(wiphy); 5388 struct sta_info *sta; 5389 int ret; 5390 5391 lockdep_assert_wiphy(local->hw.wiphy); 5392 5393 sta = sta_info_get_bss(sdata, params->mld_mac); 5394 if (!sta) 5395 return -ENOENT; 5396 5397 if (!sta->sta.valid_links) 5398 return -EINVAL; 5399 5400 if (sta->sta.valid_links & BIT(params->link_id)) 5401 return -EALREADY; 5402 5403 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5404 if (ret) 5405 return ret; 5406 5407 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5408 if (ret) { 5409 ieee80211_sta_free_link(sta, params->link_id); 5410 return ret; 5411 } 5412 5413 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5414 struct link_sta_info *link_sta; 5415 5416 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5417 rate_control_rate_init(link_sta); 5418 } 5419 5420 /* ieee80211_sta_activate_link frees the link upon failure */ 5421 return ieee80211_sta_activate_link(sta, params->link_id); 5422 } 5423 5424 static int 5425 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5426 struct link_station_parameters *params) 5427 { 5428 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5429 struct ieee80211_local *local = wiphy_priv(wiphy); 5430 struct sta_info *sta; 5431 5432 lockdep_assert_wiphy(local->hw.wiphy); 5433 5434 sta = sta_info_get_bss(sdata, params->mld_mac); 5435 if (!sta) 5436 return -ENOENT; 5437 5438 if (!(sta->sta.valid_links & BIT(params->link_id))) 5439 return -EINVAL; 5440 5441 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5442 params); 5443 } 5444 5445 static int 5446 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5447 struct link_station_del_parameters *params) 5448 { 5449 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5450 struct sta_info *sta; 5451 5452 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5453 5454 sta = sta_info_get_bss(sdata, params->mld_mac); 5455 if (!sta) 5456 return -ENOENT; 5457 5458 if (!(sta->sta.valid_links & BIT(params->link_id))) 5459 return -EINVAL; 5460 5461 /* must not create a STA without links */ 5462 if (sta->sta.valid_links == BIT(params->link_id)) 5463 return -EINVAL; 5464 5465 ieee80211_sta_remove_link(sta, params->link_id); 5466 5467 return 0; 5468 } 5469 5470 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5471 struct net_device *dev, 5472 struct cfg80211_set_hw_timestamp *hwts) 5473 { 5474 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5475 struct ieee80211_local *local = sdata->local; 5476 5477 if (!local->ops->set_hw_timestamp) 5478 return -EOPNOTSUPP; 5479 5480 if (!check_sdata_in_driver(sdata)) 5481 return -EIO; 5482 5483 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5484 } 5485 5486 static int 5487 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5488 struct cfg80211_ttlm_params *params) 5489 { 5490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5491 5492 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5493 5494 return ieee80211_req_neg_ttlm(sdata, params); 5495 } 5496 5497 static int 5498 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5499 struct cfg80211_ml_reconf_req *req) 5500 { 5501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5502 5503 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5504 5505 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5506 } 5507 5508 static int 5509 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5510 { 5511 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5512 5513 return ieee80211_mgd_set_epcs(sdata, enable); 5514 } 5515 5516 const struct cfg80211_ops mac80211_config_ops = { 5517 .add_virtual_intf = ieee80211_add_iface, 5518 .del_virtual_intf = ieee80211_del_iface, 5519 .change_virtual_intf = ieee80211_change_iface, 5520 .start_p2p_device = ieee80211_start_p2p_device, 5521 .stop_p2p_device = ieee80211_stop_p2p_device, 5522 .add_key = ieee80211_add_key, 5523 .del_key = ieee80211_del_key, 5524 .get_key = ieee80211_get_key, 5525 .set_default_key = ieee80211_config_default_key, 5526 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5527 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5528 .start_ap = ieee80211_start_ap, 5529 .change_beacon = ieee80211_change_beacon, 5530 .stop_ap = ieee80211_stop_ap, 5531 .add_station = ieee80211_add_station, 5532 .del_station = ieee80211_del_station, 5533 .change_station = ieee80211_change_station, 5534 .get_station = ieee80211_get_station, 5535 .dump_station = ieee80211_dump_station, 5536 .dump_survey = ieee80211_dump_survey, 5537 #ifdef CONFIG_MAC80211_MESH 5538 .add_mpath = ieee80211_add_mpath, 5539 .del_mpath = ieee80211_del_mpath, 5540 .change_mpath = ieee80211_change_mpath, 5541 .get_mpath = ieee80211_get_mpath, 5542 .dump_mpath = ieee80211_dump_mpath, 5543 .get_mpp = ieee80211_get_mpp, 5544 .dump_mpp = ieee80211_dump_mpp, 5545 .update_mesh_config = ieee80211_update_mesh_config, 5546 .get_mesh_config = ieee80211_get_mesh_config, 5547 .join_mesh = ieee80211_join_mesh, 5548 .leave_mesh = ieee80211_leave_mesh, 5549 #endif 5550 .join_ocb = ieee80211_join_ocb, 5551 .leave_ocb = ieee80211_leave_ocb, 5552 .change_bss = ieee80211_change_bss, 5553 .inform_bss = ieee80211_inform_bss, 5554 .set_txq_params = ieee80211_set_txq_params, 5555 .set_monitor_channel = ieee80211_set_monitor_channel, 5556 .suspend = ieee80211_suspend, 5557 .resume = ieee80211_resume, 5558 .scan = ieee80211_scan, 5559 .abort_scan = ieee80211_abort_scan, 5560 .sched_scan_start = ieee80211_sched_scan_start, 5561 .sched_scan_stop = ieee80211_sched_scan_stop, 5562 .auth = ieee80211_auth, 5563 .assoc = ieee80211_assoc, 5564 .deauth = ieee80211_deauth, 5565 .disassoc = ieee80211_disassoc, 5566 .join_ibss = ieee80211_join_ibss, 5567 .leave_ibss = ieee80211_leave_ibss, 5568 .set_mcast_rate = ieee80211_set_mcast_rate, 5569 .set_wiphy_params = ieee80211_set_wiphy_params, 5570 .set_tx_power = ieee80211_set_tx_power, 5571 .get_tx_power = ieee80211_get_tx_power, 5572 .rfkill_poll = ieee80211_rfkill_poll, 5573 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5574 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5575 .set_power_mgmt = ieee80211_set_power_mgmt, 5576 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5577 .remain_on_channel = ieee80211_remain_on_channel, 5578 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5579 .mgmt_tx = ieee80211_mgmt_tx, 5580 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5581 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5582 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5583 .update_mgmt_frame_registrations = 5584 ieee80211_update_mgmt_frame_registrations, 5585 .set_antenna = ieee80211_set_antenna, 5586 .get_antenna = ieee80211_get_antenna, 5587 .set_rekey_data = ieee80211_set_rekey_data, 5588 .tdls_oper = ieee80211_tdls_oper, 5589 .tdls_mgmt = ieee80211_tdls_mgmt, 5590 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5591 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5592 .probe_client = ieee80211_probe_client, 5593 .set_noack_map = ieee80211_set_noack_map, 5594 #ifdef CONFIG_PM 5595 .set_wakeup = ieee80211_set_wakeup, 5596 #endif 5597 .get_channel = ieee80211_cfg_get_channel, 5598 .start_radar_detection = ieee80211_start_radar_detection, 5599 .end_cac = ieee80211_end_cac, 5600 .channel_switch = ieee80211_channel_switch, 5601 .set_qos_map = ieee80211_set_qos_map, 5602 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5603 .add_tx_ts = ieee80211_add_tx_ts, 5604 .del_tx_ts = ieee80211_del_tx_ts, 5605 .start_nan = ieee80211_start_nan, 5606 .stop_nan = ieee80211_stop_nan, 5607 .nan_change_conf = ieee80211_nan_change_conf, 5608 .add_nan_func = ieee80211_add_nan_func, 5609 .del_nan_func = ieee80211_del_nan_func, 5610 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5611 .tx_control_port = ieee80211_tx_control_port, 5612 .get_txq_stats = ieee80211_get_txq_stats, 5613 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5614 .start_pmsr = ieee80211_start_pmsr, 5615 .abort_pmsr = ieee80211_abort_pmsr, 5616 .probe_mesh_link = ieee80211_probe_mesh_link, 5617 .set_tid_config = ieee80211_set_tid_config, 5618 .reset_tid_config = ieee80211_reset_tid_config, 5619 .set_sar_specs = ieee80211_set_sar_specs, 5620 .color_change = ieee80211_color_change, 5621 .set_radar_background = ieee80211_set_radar_background, 5622 .add_intf_link = ieee80211_add_intf_link, 5623 .del_intf_link = ieee80211_del_intf_link, 5624 .add_link_station = ieee80211_add_link_station, 5625 .mod_link_station = ieee80211_mod_link_station, 5626 .del_link_station = ieee80211_del_link_station, 5627 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5628 .set_ttlm = ieee80211_set_ttlm, 5629 .get_radio_mask = ieee80211_get_radio_mask, 5630 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5631 .set_epcs = ieee80211_set_epcs, 5632 }; 5633