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 67 /* don't care about endianness - just check for 0 */ 68 memcpy(&membership, params->vht_mumimo_groups, 69 WLAN_MEMBERSHIP_LEN); 70 mu_mimo_groups = membership != 0; 71 72 /* Unset following if configured explicitly */ 73 eth_broadcast_addr(sdata->u.mntr.mu_follow_addr); 74 } 75 76 if (params->vht_mumimo_follow_addr) { 77 mu_mimo_follow = 78 is_valid_ether_addr(params->vht_mumimo_follow_addr); 79 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 80 params->vht_mumimo_follow_addr); 81 82 /* Unset current membership until a management frame is RXed */ 83 memset(sdata->vif.bss_conf.mu_group.membership, 0, 84 WLAN_MEMBERSHIP_LEN); 85 } 86 87 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 88 89 /* Notify only after setting mu_mimo_owner */ 90 if (sdata->vif.bss_conf.mu_mimo_owner && 91 sdata->flags & IEEE80211_SDATA_IN_DRIVER) 92 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 93 BSS_CHANGED_MU_GROUPS); 94 } 95 96 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 97 struct vif_params *params) 98 { 99 struct ieee80211_local *local = sdata->local; 100 struct ieee80211_sub_if_data *monitor_sdata = NULL; 101 102 /* check flags first */ 103 if (params->flags && ieee80211_sdata_running(sdata)) { 104 u32 mask = MONITOR_FLAG_ACTIVE; 105 106 /* 107 * Prohibit MONITOR_FLAG_ACTIVE to be changed 108 * while the interface is up. 109 * Else we would need to add a lot of cruft 110 * to update everything: 111 * monitor and all fif_* counters 112 * reconfigure hardware 113 */ 114 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 115 return -EBUSY; 116 } 117 118 /* validate whether MU-MIMO can be configured */ 119 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) && 120 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) && 121 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 122 return -EOPNOTSUPP; 123 124 /* Also update dependent monitor_sdata if required */ 125 if (test_bit(SDATA_STATE_RUNNING, &sdata->state) && 126 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 127 monitor_sdata = wiphy_dereference(local->hw.wiphy, 128 local->monitor_sdata); 129 130 /* apply all changes now - no failures allowed */ 131 132 if (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 133 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 134 /* This is copied in when the VIF is activated */ 135 ieee80211_set_mu_mimo_follow(sdata, params); 136 137 if (monitor_sdata) 138 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 139 } 140 141 if (params->flags) { 142 if (ieee80211_sdata_running(sdata)) { 143 ieee80211_adjust_monitor_flags(sdata, -1); 144 sdata->u.mntr.flags = params->flags; 145 ieee80211_adjust_monitor_flags(sdata, 1); 146 147 ieee80211_configure_filter(local); 148 } else { 149 /* 150 * Because the interface is down, ieee80211_do_stop 151 * and ieee80211_do_open take care of "everything" 152 * mentioned in the comment above. 153 */ 154 sdata->u.mntr.flags = params->flags; 155 } 156 } 157 158 return 0; 159 } 160 161 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 162 struct cfg80211_mbssid_config *params, 163 struct ieee80211_bss_conf *link_conf) 164 { 165 struct ieee80211_sub_if_data *tx_sdata; 166 struct ieee80211_bss_conf *old; 167 168 link_conf->bssid_index = 0; 169 link_conf->nontransmitted = false; 170 link_conf->ema_ap = false; 171 link_conf->bssid_indicator = 0; 172 173 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev) 174 return -EINVAL; 175 176 old = sdata_dereference(link_conf->tx_bss_conf, sdata); 177 if (old) 178 return -EALREADY; 179 180 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev); 181 if (!tx_sdata) 182 return -EINVAL; 183 184 if (tx_sdata == sdata) { 185 rcu_assign_pointer(link_conf->tx_bss_conf, link_conf); 186 } else { 187 struct ieee80211_bss_conf *tx_bss_conf; 188 189 tx_bss_conf = sdata_dereference(tx_sdata->vif.link_conf[params->tx_link_id], 190 sdata); 191 if (rcu_access_pointer(tx_bss_conf->tx_bss_conf) != tx_bss_conf) 192 return -EINVAL; 193 194 rcu_assign_pointer(link_conf->tx_bss_conf, tx_bss_conf); 195 196 link_conf->nontransmitted = true; 197 link_conf->bssid_index = params->index; 198 link_conf->bssid_indicator = tx_bss_conf->bssid_indicator; 199 } 200 if (params->ema) 201 link_conf->ema_ap = true; 202 203 return 0; 204 } 205 206 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 207 const char *name, 208 unsigned char name_assign_type, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_local *local = wiphy_priv(wiphy); 213 struct wireless_dev *wdev; 214 struct ieee80211_sub_if_data *sdata; 215 int err; 216 217 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 218 if (err) 219 return ERR_PTR(err); 220 221 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 222 223 if (type == NL80211_IFTYPE_MONITOR) { 224 err = ieee80211_set_mon_options(sdata, params); 225 if (err) { 226 ieee80211_if_remove(sdata); 227 return NULL; 228 } 229 } 230 231 /* Let the driver know that an interface is going to be added. 232 * Indicate so only for interface types that will be added to the 233 * driver. 234 */ 235 switch (type) { 236 case NL80211_IFTYPE_AP_VLAN: 237 break; 238 case NL80211_IFTYPE_MONITOR: 239 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) || 240 !(params->flags & MONITOR_FLAG_ACTIVE)) 241 break; 242 fallthrough; 243 default: 244 drv_prep_add_interface(local, 245 ieee80211_vif_type_p2p(&sdata->vif)); 246 break; 247 } 248 249 return wdev; 250 } 251 252 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 253 { 254 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 255 256 return 0; 257 } 258 259 static int ieee80211_change_iface(struct wiphy *wiphy, 260 struct net_device *dev, 261 enum nl80211_iftype type, 262 struct vif_params *params) 263 { 264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 265 struct ieee80211_local *local = sdata->local; 266 struct sta_info *sta; 267 int ret; 268 269 lockdep_assert_wiphy(local->hw.wiphy); 270 271 ret = ieee80211_if_change_type(sdata, type); 272 if (ret) 273 return ret; 274 275 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 276 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 277 ieee80211_check_fast_rx_iface(sdata); 278 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 279 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 280 281 if (params->use_4addr == ifmgd->use_4addr) 282 return 0; 283 284 /* FIXME: no support for 4-addr MLO yet */ 285 if (ieee80211_vif_is_mld(&sdata->vif)) 286 return -EOPNOTSUPP; 287 288 sdata->u.mgd.use_4addr = params->use_4addr; 289 if (!ifmgd->associated) 290 return 0; 291 292 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 293 if (sta) 294 drv_sta_set_4addr(local, sdata, &sta->sta, 295 params->use_4addr); 296 297 if (params->use_4addr) 298 ieee80211_send_4addr_nullfunc(local, sdata); 299 } 300 301 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 302 ret = ieee80211_set_mon_options(sdata, params); 303 if (ret) 304 return ret; 305 } 306 307 return 0; 308 } 309 310 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 311 struct wireless_dev *wdev) 312 { 313 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 314 int ret; 315 316 lockdep_assert_wiphy(sdata->local->hw.wiphy); 317 318 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 319 if (ret < 0) 320 return ret; 321 322 return ieee80211_do_open(wdev, true); 323 } 324 325 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 326 struct wireless_dev *wdev) 327 { 328 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 329 } 330 331 static void ieee80211_nan_conf_free(struct cfg80211_nan_conf *conf) 332 { 333 kfree(conf->cluster_id); 334 kfree(conf->extra_nan_attrs); 335 kfree(conf->vendor_elems); 336 memset(conf, 0, sizeof(*conf)); 337 } 338 339 static void ieee80211_stop_nan(struct wiphy *wiphy, 340 struct wireless_dev *wdev) 341 { 342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 343 344 if (!sdata->u.nan.started) 345 return; 346 347 drv_stop_nan(sdata->local, sdata); 348 sdata->u.nan.started = false; 349 350 ieee80211_nan_conf_free(&sdata->u.nan.conf); 351 352 ieee80211_sdata_stop(sdata); 353 ieee80211_recalc_idle(sdata->local); 354 } 355 356 static int ieee80211_nan_conf_copy(struct cfg80211_nan_conf *dst, 357 struct cfg80211_nan_conf *src, 358 u32 changes) 359 { 360 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 361 dst->master_pref = src->master_pref; 362 363 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 364 dst->bands = src->bands; 365 366 if (changes & CFG80211_NAN_CONF_CHANGED_CONFIG) { 367 dst->scan_period = src->scan_period; 368 dst->scan_dwell_time = src->scan_dwell_time; 369 dst->discovery_beacon_interval = 370 src->discovery_beacon_interval; 371 dst->enable_dw_notification = src->enable_dw_notification; 372 memcpy(&dst->band_cfgs, &src->band_cfgs, 373 sizeof(dst->band_cfgs)); 374 375 kfree(dst->cluster_id); 376 dst->cluster_id = NULL; 377 378 kfree(dst->extra_nan_attrs); 379 dst->extra_nan_attrs = NULL; 380 dst->extra_nan_attrs_len = 0; 381 382 kfree(dst->vendor_elems); 383 dst->vendor_elems = NULL; 384 dst->vendor_elems_len = 0; 385 386 if (src->cluster_id) { 387 dst->cluster_id = kmemdup(src->cluster_id, ETH_ALEN, 388 GFP_KERNEL); 389 if (!dst->cluster_id) 390 goto no_mem; 391 } 392 393 if (src->extra_nan_attrs && src->extra_nan_attrs_len) { 394 dst->extra_nan_attrs = kmemdup(src->extra_nan_attrs, 395 src->extra_nan_attrs_len, 396 GFP_KERNEL); 397 if (!dst->extra_nan_attrs) 398 goto no_mem; 399 400 dst->extra_nan_attrs_len = src->extra_nan_attrs_len; 401 } 402 403 if (src->vendor_elems && src->vendor_elems_len) { 404 dst->vendor_elems = kmemdup(src->vendor_elems, 405 src->vendor_elems_len, 406 GFP_KERNEL); 407 if (!dst->vendor_elems) 408 goto no_mem; 409 410 dst->vendor_elems_len = src->vendor_elems_len; 411 } 412 } 413 414 return 0; 415 416 no_mem: 417 ieee80211_nan_conf_free(dst); 418 return -ENOMEM; 419 } 420 421 static int ieee80211_start_nan(struct wiphy *wiphy, 422 struct wireless_dev *wdev, 423 struct cfg80211_nan_conf *conf) 424 { 425 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 426 int ret; 427 428 lockdep_assert_wiphy(sdata->local->hw.wiphy); 429 430 if (sdata->u.nan.started) 431 return -EALREADY; 432 433 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 434 if (ret < 0) 435 return ret; 436 437 ret = ieee80211_do_open(wdev, true); 438 if (ret) 439 return ret; 440 441 ret = drv_start_nan(sdata->local, sdata, conf); 442 if (ret) { 443 ieee80211_sdata_stop(sdata); 444 return ret; 445 } 446 447 sdata->u.nan.started = true; 448 ieee80211_recalc_idle(sdata->local); 449 450 ret = ieee80211_nan_conf_copy(&sdata->u.nan.conf, conf, 0xFFFFFFFF); 451 if (ret) { 452 ieee80211_stop_nan(wiphy, wdev); 453 return ret; 454 } 455 456 return 0; 457 } 458 459 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 460 struct wireless_dev *wdev, 461 struct cfg80211_nan_conf *conf, 462 u32 changes) 463 { 464 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 465 struct cfg80211_nan_conf new_conf = {}; 466 int ret = 0; 467 468 if (sdata->vif.type != NL80211_IFTYPE_NAN) 469 return -EOPNOTSUPP; 470 471 if (!ieee80211_sdata_running(sdata)) 472 return -ENETDOWN; 473 474 if (!changes) 475 return 0; 476 477 /* First make a full copy of the previous configuration and then apply 478 * the changes. This might be a little wasteful, but it is simpler. 479 */ 480 ret = ieee80211_nan_conf_copy(&new_conf, &sdata->u.nan.conf, 481 0xFFFFFFFF); 482 if (ret < 0) 483 return ret; 484 485 ret = ieee80211_nan_conf_copy(&new_conf, conf, changes); 486 if (ret < 0) 487 return ret; 488 489 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 490 if (ret) { 491 ieee80211_nan_conf_free(&new_conf); 492 } else { 493 ieee80211_nan_conf_free(&sdata->u.nan.conf); 494 sdata->u.nan.conf = new_conf; 495 } 496 497 return ret; 498 } 499 500 static int ieee80211_add_nan_func(struct wiphy *wiphy, 501 struct wireless_dev *wdev, 502 struct cfg80211_nan_func *nan_func) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 505 int ret; 506 507 if (sdata->vif.type != NL80211_IFTYPE_NAN) 508 return -EOPNOTSUPP; 509 510 if (!ieee80211_sdata_running(sdata)) 511 return -ENETDOWN; 512 513 spin_lock_bh(&sdata->u.nan.func_lock); 514 515 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 516 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 517 GFP_ATOMIC); 518 spin_unlock_bh(&sdata->u.nan.func_lock); 519 520 if (ret < 0) 521 return ret; 522 523 nan_func->instance_id = ret; 524 525 WARN_ON(nan_func->instance_id == 0); 526 527 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 528 if (ret) { 529 spin_lock_bh(&sdata->u.nan.func_lock); 530 idr_remove(&sdata->u.nan.function_inst_ids, 531 nan_func->instance_id); 532 spin_unlock_bh(&sdata->u.nan.func_lock); 533 } 534 535 return ret; 536 } 537 538 static struct cfg80211_nan_func * 539 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 540 u64 cookie) 541 { 542 struct cfg80211_nan_func *func; 543 int id; 544 545 lockdep_assert_held(&sdata->u.nan.func_lock); 546 547 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 548 if (func->cookie == cookie) 549 return func; 550 } 551 552 return NULL; 553 } 554 555 static void ieee80211_del_nan_func(struct wiphy *wiphy, 556 struct wireless_dev *wdev, u64 cookie) 557 { 558 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 559 struct cfg80211_nan_func *func; 560 u8 instance_id = 0; 561 562 if (sdata->vif.type != NL80211_IFTYPE_NAN || 563 !ieee80211_sdata_running(sdata)) 564 return; 565 566 spin_lock_bh(&sdata->u.nan.func_lock); 567 568 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 569 if (func) 570 instance_id = func->instance_id; 571 572 spin_unlock_bh(&sdata->u.nan.func_lock); 573 574 if (instance_id) 575 drv_del_nan_func(sdata->local, sdata, instance_id); 576 } 577 578 static int ieee80211_set_noack_map(struct wiphy *wiphy, 579 struct net_device *dev, 580 u16 noack_map) 581 { 582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 583 584 sdata->noack_map = noack_map; 585 586 ieee80211_check_fast_xmit_iface(sdata); 587 588 return 0; 589 } 590 591 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 592 const u8 *mac_addr, u8 key_idx) 593 { 594 struct ieee80211_local *local = sdata->local; 595 struct ieee80211_key *key; 596 struct sta_info *sta; 597 int ret = -EINVAL; 598 599 if (!wiphy_ext_feature_isset(local->hw.wiphy, 600 NL80211_EXT_FEATURE_EXT_KEY_ID)) 601 return -EINVAL; 602 603 sta = sta_info_get_bss(sdata, mac_addr); 604 605 if (!sta) 606 return -EINVAL; 607 608 if (sta->ptk_idx == key_idx) 609 return 0; 610 611 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 612 613 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 614 ret = ieee80211_set_tx_key(key); 615 616 return ret; 617 } 618 619 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 620 int link_id, u8 key_idx, bool pairwise, 621 const u8 *mac_addr, struct key_params *params) 622 { 623 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 624 struct ieee80211_link_data *link = 625 ieee80211_link_or_deflink(sdata, link_id, false); 626 struct ieee80211_local *local = sdata->local; 627 struct sta_info *sta = NULL; 628 struct ieee80211_key *key; 629 int err; 630 631 lockdep_assert_wiphy(local->hw.wiphy); 632 633 if (!ieee80211_sdata_running(sdata)) 634 return -ENETDOWN; 635 636 if (IS_ERR(link)) 637 return PTR_ERR(link); 638 639 if (WARN_ON(pairwise && link_id >= 0)) 640 return -EINVAL; 641 642 if (pairwise && params->mode == NL80211_KEY_SET_TX) 643 return ieee80211_set_tx(sdata, mac_addr, key_idx); 644 645 /* reject WEP and TKIP keys if WEP failed to initialize */ 646 switch (params->cipher) { 647 case WLAN_CIPHER_SUITE_WEP40: 648 case WLAN_CIPHER_SUITE_TKIP: 649 case WLAN_CIPHER_SUITE_WEP104: 650 if (link_id >= 0) 651 return -EINVAL; 652 if (WARN_ON_ONCE(fips_enabled)) 653 return -EINVAL; 654 break; 655 default: 656 break; 657 } 658 659 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 660 params->key, params->seq_len, params->seq); 661 if (IS_ERR(key)) 662 return PTR_ERR(key); 663 664 if (pairwise) { 665 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 666 key->conf.link_id = -1; 667 } else { 668 key->conf.link_id = link->link_id; 669 } 670 671 if (params->mode == NL80211_KEY_NO_TX) 672 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 673 674 if (mac_addr) { 675 sta = sta_info_get_bss(sdata, mac_addr); 676 /* 677 * The ASSOC test makes sure the driver is ready to 678 * receive the key. When wpa_supplicant has roamed 679 * using FT, it attempts to set the key before 680 * association has completed, this rejects that attempt 681 * so it will set the key again after association. 682 * 683 * TODO: accept the key if we have a station entry and 684 * add it to the device after the station. 685 */ 686 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 687 ieee80211_key_free_unused(key); 688 return -ENOENT; 689 } 690 } 691 692 switch (sdata->vif.type) { 693 case NL80211_IFTYPE_STATION: 694 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 695 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 696 break; 697 case NL80211_IFTYPE_AP: 698 case NL80211_IFTYPE_AP_VLAN: 699 /* Keys without a station are used for TX only */ 700 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 701 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 702 break; 703 case NL80211_IFTYPE_ADHOC: 704 /* no MFP (yet) */ 705 break; 706 case NL80211_IFTYPE_MESH_POINT: 707 #ifdef CONFIG_MAC80211_MESH 708 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 709 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 710 break; 711 #endif 712 case NL80211_IFTYPE_WDS: 713 case NL80211_IFTYPE_MONITOR: 714 case NL80211_IFTYPE_P2P_DEVICE: 715 case NL80211_IFTYPE_NAN: 716 case NL80211_IFTYPE_UNSPECIFIED: 717 case NUM_NL80211_IFTYPES: 718 case NL80211_IFTYPE_P2P_CLIENT: 719 case NL80211_IFTYPE_P2P_GO: 720 case NL80211_IFTYPE_OCB: 721 /* shouldn't happen */ 722 WARN_ON_ONCE(1); 723 break; 724 } 725 726 err = ieee80211_key_link(key, link, sta); 727 /* KRACK protection, shouldn't happen but just silently accept key */ 728 if (err == -EALREADY) 729 err = 0; 730 731 return err; 732 } 733 734 static struct ieee80211_key * 735 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 736 u8 key_idx, bool pairwise, const u8 *mac_addr) 737 { 738 struct ieee80211_local *local __maybe_unused = sdata->local; 739 struct ieee80211_link_data *link = &sdata->deflink; 740 struct ieee80211_key *key; 741 742 if (link_id >= 0) { 743 link = sdata_dereference(sdata->link[link_id], sdata); 744 if (!link) 745 return NULL; 746 } 747 748 if (mac_addr) { 749 struct sta_info *sta; 750 struct link_sta_info *link_sta; 751 752 sta = sta_info_get_bss(sdata, mac_addr); 753 if (!sta) 754 return NULL; 755 756 if (link_id >= 0) { 757 link_sta = rcu_dereference_check(sta->link[link_id], 758 lockdep_is_held(&local->hw.wiphy->mtx)); 759 if (!link_sta) 760 return NULL; 761 } else { 762 link_sta = &sta->deflink; 763 } 764 765 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 766 return wiphy_dereference(local->hw.wiphy, 767 sta->ptk[key_idx]); 768 769 if (!pairwise && 770 key_idx < NUM_DEFAULT_KEYS + 771 NUM_DEFAULT_MGMT_KEYS + 772 NUM_DEFAULT_BEACON_KEYS) 773 return wiphy_dereference(local->hw.wiphy, 774 link_sta->gtk[key_idx]); 775 776 return NULL; 777 } 778 779 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 780 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 781 782 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 783 if (key) 784 return key; 785 786 /* or maybe it was a WEP key */ 787 if (key_idx < NUM_DEFAULT_KEYS) 788 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 789 790 return NULL; 791 } 792 793 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 794 int link_id, u8 key_idx, bool pairwise, 795 const u8 *mac_addr) 796 { 797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 798 struct ieee80211_local *local = sdata->local; 799 struct ieee80211_key *key; 800 801 lockdep_assert_wiphy(local->hw.wiphy); 802 803 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 804 if (!key) 805 return -ENOENT; 806 807 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 808 809 return 0; 810 } 811 812 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 813 int link_id, u8 key_idx, bool pairwise, 814 const u8 *mac_addr, void *cookie, 815 void (*callback)(void *cookie, 816 struct key_params *params)) 817 { 818 struct ieee80211_sub_if_data *sdata; 819 u8 seq[6] = {0}; 820 struct key_params params; 821 struct ieee80211_key *key; 822 u64 pn64; 823 u32 iv32; 824 u16 iv16; 825 int err = -ENOENT; 826 struct ieee80211_key_seq kseq = {}; 827 828 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 829 830 rcu_read_lock(); 831 832 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 833 if (!key) 834 goto out; 835 836 memset(¶ms, 0, sizeof(params)); 837 838 params.cipher = key->conf.cipher; 839 840 switch (key->conf.cipher) { 841 case WLAN_CIPHER_SUITE_TKIP: 842 pn64 = atomic64_read(&key->conf.tx_pn); 843 iv32 = TKIP_PN_TO_IV32(pn64); 844 iv16 = TKIP_PN_TO_IV16(pn64); 845 846 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 847 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 848 drv_get_key_seq(sdata->local, key, &kseq); 849 iv32 = kseq.tkip.iv32; 850 iv16 = kseq.tkip.iv16; 851 } 852 853 seq[0] = iv16 & 0xff; 854 seq[1] = (iv16 >> 8) & 0xff; 855 seq[2] = iv32 & 0xff; 856 seq[3] = (iv32 >> 8) & 0xff; 857 seq[4] = (iv32 >> 16) & 0xff; 858 seq[5] = (iv32 >> 24) & 0xff; 859 params.seq = seq; 860 params.seq_len = 6; 861 break; 862 case WLAN_CIPHER_SUITE_CCMP: 863 case WLAN_CIPHER_SUITE_CCMP_256: 864 case WLAN_CIPHER_SUITE_AES_CMAC: 865 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 866 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 867 offsetof(typeof(kseq), aes_cmac)); 868 fallthrough; 869 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 870 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 871 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 872 offsetof(typeof(kseq), aes_gmac)); 873 fallthrough; 874 case WLAN_CIPHER_SUITE_GCMP: 875 case WLAN_CIPHER_SUITE_GCMP_256: 876 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 877 offsetof(typeof(kseq), gcmp)); 878 879 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 880 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 881 drv_get_key_seq(sdata->local, key, &kseq); 882 memcpy(seq, kseq.ccmp.pn, 6); 883 } else { 884 pn64 = atomic64_read(&key->conf.tx_pn); 885 seq[0] = pn64; 886 seq[1] = pn64 >> 8; 887 seq[2] = pn64 >> 16; 888 seq[3] = pn64 >> 24; 889 seq[4] = pn64 >> 32; 890 seq[5] = pn64 >> 40; 891 } 892 params.seq = seq; 893 params.seq_len = 6; 894 break; 895 default: 896 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 897 break; 898 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 899 break; 900 drv_get_key_seq(sdata->local, key, &kseq); 901 params.seq = kseq.hw.seq; 902 params.seq_len = kseq.hw.seq_len; 903 break; 904 } 905 906 callback(cookie, ¶ms); 907 err = 0; 908 909 out: 910 rcu_read_unlock(); 911 return err; 912 } 913 914 static int ieee80211_config_default_key(struct wiphy *wiphy, 915 struct net_device *dev, 916 int link_id, u8 key_idx, bool uni, 917 bool multi) 918 { 919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 920 struct ieee80211_link_data *link = 921 ieee80211_link_or_deflink(sdata, link_id, false); 922 923 if (IS_ERR(link)) 924 return PTR_ERR(link); 925 926 ieee80211_set_default_key(link, key_idx, uni, multi); 927 928 return 0; 929 } 930 931 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 932 struct net_device *dev, 933 int link_id, u8 key_idx) 934 { 935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 936 struct ieee80211_link_data *link = 937 ieee80211_link_or_deflink(sdata, link_id, true); 938 939 if (IS_ERR(link)) 940 return PTR_ERR(link); 941 942 ieee80211_set_default_mgmt_key(link, key_idx); 943 944 return 0; 945 } 946 947 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 948 struct net_device *dev, 949 int link_id, u8 key_idx) 950 { 951 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 952 struct ieee80211_link_data *link = 953 ieee80211_link_or_deflink(sdata, link_id, true); 954 955 if (IS_ERR(link)) 956 return PTR_ERR(link); 957 958 ieee80211_set_default_beacon_key(link, key_idx); 959 960 return 0; 961 } 962 963 void sta_set_rate_info_tx(struct sta_info *sta, 964 const struct ieee80211_tx_rate *rate, 965 struct rate_info *rinfo) 966 { 967 rinfo->flags = 0; 968 if (rate->flags & IEEE80211_TX_RC_MCS) { 969 rinfo->flags |= RATE_INFO_FLAGS_MCS; 970 rinfo->mcs = rate->idx; 971 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 972 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 973 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 974 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 975 } else { 976 struct ieee80211_supported_band *sband; 977 978 sband = ieee80211_get_sband(sta->sdata); 979 WARN_ON_ONCE(sband && !sband->bitrates); 980 if (sband && sband->bitrates) 981 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 982 } 983 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 984 rinfo->bw = RATE_INFO_BW_40; 985 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 986 rinfo->bw = RATE_INFO_BW_80; 987 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 988 rinfo->bw = RATE_INFO_BW_160; 989 else 990 rinfo->bw = RATE_INFO_BW_20; 991 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 992 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 993 } 994 995 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 996 int idx, u8 *mac, struct station_info *sinfo) 997 { 998 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 999 struct ieee80211_local *local = sdata->local; 1000 struct sta_info *sta; 1001 int ret = -ENOENT; 1002 1003 lockdep_assert_wiphy(local->hw.wiphy); 1004 1005 sta = sta_info_get_by_idx(sdata, idx); 1006 if (sta) { 1007 ret = 0; 1008 memcpy(mac, sta->sta.addr, ETH_ALEN); 1009 sta_set_sinfo(sta, sinfo, true); 1010 1011 /* Add accumulated removed link data to sinfo data for 1012 * consistency for MLO 1013 */ 1014 if (sinfo->valid_links) 1015 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 1016 1017 } 1018 1019 return ret; 1020 } 1021 1022 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1023 int idx, struct survey_info *survey) 1024 { 1025 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1026 1027 return drv_get_survey(local, idx, survey); 1028 } 1029 1030 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1031 const u8 *mac, struct station_info *sinfo) 1032 { 1033 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1034 struct ieee80211_local *local = sdata->local; 1035 struct sta_info *sta; 1036 int ret = -ENOENT; 1037 1038 lockdep_assert_wiphy(local->hw.wiphy); 1039 1040 sta = sta_info_get_bss(sdata, mac); 1041 if (sta) { 1042 ret = 0; 1043 sta_set_sinfo(sta, sinfo, true); 1044 1045 /* Add accumulated removed link data to sinfo data for 1046 * consistency for MLO 1047 */ 1048 if (sinfo->valid_links) 1049 sta_set_accumulated_removed_links_sinfo(sta, sinfo); 1050 } 1051 1052 return ret; 1053 } 1054 1055 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 1056 struct net_device *dev, 1057 struct cfg80211_chan_def *chandef) 1058 { 1059 struct ieee80211_local *local = wiphy_priv(wiphy); 1060 struct ieee80211_sub_if_data *sdata; 1061 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 1062 int ret; 1063 1064 lockdep_assert_wiphy(local->hw.wiphy); 1065 1066 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1067 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 1068 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 1069 &chanreq.oper)) 1070 return 0; 1071 1072 sdata = wiphy_dereference(wiphy, local->monitor_sdata); 1073 if (!sdata) 1074 goto done; 1075 } 1076 1077 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) && 1078 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 1079 &chanreq.oper)) 1080 return 0; 1081 1082 ieee80211_link_release_channel(&sdata->deflink); 1083 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 1084 IEEE80211_CHANCTX_SHARED); 1085 if (ret) 1086 return ret; 1087 done: 1088 local->monitor_chanreq = chanreq; 1089 return 0; 1090 } 1091 1092 static int 1093 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 1094 const u8 *resp, size_t resp_len, 1095 const struct ieee80211_csa_settings *csa, 1096 const struct ieee80211_color_change_settings *cca, 1097 struct ieee80211_link_data *link) 1098 { 1099 struct probe_resp *new, *old; 1100 1101 if (!resp || !resp_len) 1102 return 1; 1103 1104 old = sdata_dereference(link->u.ap.probe_resp, sdata); 1105 1106 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 1107 if (!new) 1108 return -ENOMEM; 1109 1110 new->len = resp_len; 1111 memcpy(new->data, resp, resp_len); 1112 1113 if (csa) 1114 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 1115 csa->n_counter_offsets_presp * 1116 sizeof(new->cntdwn_counter_offsets[0])); 1117 else if (cca) 1118 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 1119 1120 rcu_assign_pointer(link->u.ap.probe_resp, new); 1121 if (old) 1122 kfree_rcu(old, rcu_head); 1123 1124 return 0; 1125 } 1126 1127 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 1128 struct cfg80211_fils_discovery *params, 1129 struct ieee80211_link_data *link, 1130 struct ieee80211_bss_conf *link_conf, 1131 u64 *changed) 1132 { 1133 struct fils_discovery_data *new, *old = NULL; 1134 struct ieee80211_fils_discovery *fd; 1135 1136 if (!params->update) 1137 return 0; 1138 1139 fd = &link_conf->fils_discovery; 1140 fd->min_interval = params->min_interval; 1141 fd->max_interval = params->max_interval; 1142 1143 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 1144 if (old) 1145 kfree_rcu(old, rcu_head); 1146 1147 if (params->tmpl && params->tmpl_len) { 1148 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1149 if (!new) 1150 return -ENOMEM; 1151 new->len = params->tmpl_len; 1152 memcpy(new->data, params->tmpl, params->tmpl_len); 1153 rcu_assign_pointer(link->u.ap.fils_discovery, new); 1154 } else { 1155 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1156 } 1157 1158 *changed |= BSS_CHANGED_FILS_DISCOVERY; 1159 return 0; 1160 } 1161 1162 static int 1163 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 1164 struct cfg80211_unsol_bcast_probe_resp *params, 1165 struct ieee80211_link_data *link, 1166 struct ieee80211_bss_conf *link_conf, 1167 u64 *changed) 1168 { 1169 struct unsol_bcast_probe_resp_data *new, *old = NULL; 1170 1171 if (!params->update) 1172 return 0; 1173 1174 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1175 1176 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 1177 if (old) 1178 kfree_rcu(old, rcu_head); 1179 1180 if (params->tmpl && params->tmpl_len) { 1181 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1182 if (!new) 1183 return -ENOMEM; 1184 new->len = params->tmpl_len; 1185 memcpy(new->data, params->tmpl, params->tmpl_len); 1186 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1187 } else { 1188 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1189 } 1190 1191 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1192 return 0; 1193 } 1194 1195 static int 1196 ieee80211_set_s1g_short_beacon(struct ieee80211_sub_if_data *sdata, 1197 struct ieee80211_link_data *link, 1198 struct cfg80211_s1g_short_beacon *params) 1199 { 1200 struct s1g_short_beacon_data *new; 1201 struct s1g_short_beacon_data *old = 1202 sdata_dereference(link->u.ap.s1g_short_beacon, sdata); 1203 size_t new_len = 1204 sizeof(*new) + params->short_head_len + params->short_tail_len; 1205 1206 if (!params->update) 1207 return 0; 1208 1209 if (!params->short_head) 1210 return -EINVAL; 1211 1212 new = kzalloc(new_len, GFP_KERNEL); 1213 if (!new) 1214 return -ENOMEM; 1215 1216 /* Memory layout: | struct | head | tail | */ 1217 new->short_head = (u8 *)new + sizeof(*new); 1218 new->short_head_len = params->short_head_len; 1219 memcpy(new->short_head, params->short_head, params->short_head_len); 1220 1221 if (params->short_tail) { 1222 new->short_tail = new->short_head + params->short_head_len; 1223 new->short_tail_len = params->short_tail_len; 1224 memcpy(new->short_tail, params->short_tail, 1225 params->short_tail_len); 1226 } 1227 1228 rcu_assign_pointer(link->u.ap.s1g_short_beacon, new); 1229 1230 if (old) 1231 kfree_rcu(old, rcu_head); 1232 1233 return 0; 1234 } 1235 1236 static int ieee80211_set_ftm_responder_params( 1237 struct ieee80211_sub_if_data *sdata, 1238 const u8 *lci, size_t lci_len, 1239 const u8 *civicloc, size_t civicloc_len, 1240 struct ieee80211_bss_conf *link_conf) 1241 { 1242 struct ieee80211_ftm_responder_params *new, *old; 1243 u8 *pos; 1244 int len; 1245 1246 if (!lci_len && !civicloc_len) 1247 return 0; 1248 1249 old = link_conf->ftmr_params; 1250 len = lci_len + civicloc_len; 1251 1252 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1253 if (!new) 1254 return -ENOMEM; 1255 1256 pos = (u8 *)(new + 1); 1257 if (lci_len) { 1258 new->lci_len = lci_len; 1259 new->lci = pos; 1260 memcpy(pos, lci, lci_len); 1261 pos += lci_len; 1262 } 1263 1264 if (civicloc_len) { 1265 new->civicloc_len = civicloc_len; 1266 new->civicloc = pos; 1267 memcpy(pos, civicloc, civicloc_len); 1268 pos += civicloc_len; 1269 } 1270 1271 link_conf->ftmr_params = new; 1272 kfree(old); 1273 1274 return 0; 1275 } 1276 1277 static int 1278 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1279 struct cfg80211_mbssid_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_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1296 struct cfg80211_rnr_elems *src) 1297 { 1298 int i, offset = 0; 1299 1300 dst->cnt = src->cnt; 1301 for (i = 0; i < src->cnt; i++) { 1302 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1303 dst->elem[i].len = src->elem[i].len; 1304 dst->elem[i].data = pos + offset; 1305 offset += dst->elem[i].len; 1306 } 1307 1308 return offset; 1309 } 1310 1311 static int 1312 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1313 struct ieee80211_link_data *link, 1314 struct cfg80211_beacon_data *params, 1315 const struct ieee80211_csa_settings *csa, 1316 const struct ieee80211_color_change_settings *cca, 1317 u64 *changed) 1318 { 1319 struct cfg80211_mbssid_elems *mbssid = NULL; 1320 struct cfg80211_rnr_elems *rnr = NULL; 1321 struct beacon_data *new, *old; 1322 int new_head_len, new_tail_len; 1323 int size, err; 1324 u64 _changed = BSS_CHANGED_BEACON; 1325 struct ieee80211_bss_conf *link_conf = link->conf; 1326 1327 old = sdata_dereference(link->u.ap.beacon, sdata); 1328 1329 /* Need to have a beacon head if we don't have one yet */ 1330 if (!params->head && !old) 1331 return -EINVAL; 1332 1333 /* new or old head? */ 1334 if (params->head) 1335 new_head_len = params->head_len; 1336 else 1337 new_head_len = old->head_len; 1338 1339 /* new or old tail? */ 1340 if (params->tail || !old) 1341 /* params->tail_len will be zero for !params->tail */ 1342 new_tail_len = params->tail_len; 1343 else 1344 new_tail_len = old->tail_len; 1345 1346 size = sizeof(*new) + new_head_len + new_tail_len; 1347 1348 if (params->mbssid_ies) { 1349 mbssid = params->mbssid_ies; 1350 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1351 if (params->rnr_ies) { 1352 rnr = params->rnr_ies; 1353 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1354 } 1355 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1356 mbssid->cnt); 1357 } 1358 1359 new = kzalloc(size, GFP_KERNEL); 1360 if (!new) 1361 return -ENOMEM; 1362 1363 /* start filling the new info now */ 1364 1365 /* 1366 * pointers go into the block we allocated, 1367 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1368 */ 1369 new->head = ((u8 *) new) + sizeof(*new); 1370 new->tail = new->head + new_head_len; 1371 new->head_len = new_head_len; 1372 new->tail_len = new_tail_len; 1373 /* copy in optional mbssid_ies */ 1374 if (mbssid) { 1375 u8 *pos = new->tail + new->tail_len; 1376 1377 new->mbssid_ies = (void *)pos; 1378 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1379 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1380 mbssid); 1381 if (rnr) { 1382 new->rnr_ies = (void *)pos; 1383 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1384 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1385 } 1386 /* update bssid_indicator */ 1387 if (new->mbssid_ies->cnt && new->mbssid_ies->elem[0].len > 2) 1388 link_conf->bssid_indicator = 1389 *(new->mbssid_ies->elem[0].data + 2); 1390 else 1391 link_conf->bssid_indicator = 0; 1392 } 1393 1394 if (csa) { 1395 new->cntdwn_current_counter = csa->count; 1396 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1397 csa->n_counter_offsets_beacon * 1398 sizeof(new->cntdwn_counter_offsets[0])); 1399 } else if (cca) { 1400 new->cntdwn_current_counter = cca->count; 1401 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1402 } 1403 1404 /* copy in head */ 1405 if (params->head) 1406 memcpy(new->head, params->head, new_head_len); 1407 else 1408 memcpy(new->head, old->head, new_head_len); 1409 1410 /* copy in optional tail */ 1411 if (params->tail) 1412 memcpy(new->tail, params->tail, new_tail_len); 1413 else 1414 if (old) 1415 memcpy(new->tail, old->tail, new_tail_len); 1416 1417 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1418 params->probe_resp_len, csa, cca, link); 1419 if (err < 0) { 1420 kfree(new); 1421 return err; 1422 } 1423 if (err == 0) 1424 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1425 1426 if (params->ftm_responder != -1) { 1427 link_conf->ftm_responder = params->ftm_responder; 1428 err = ieee80211_set_ftm_responder_params(sdata, 1429 params->lci, 1430 params->lci_len, 1431 params->civicloc, 1432 params->civicloc_len, 1433 link_conf); 1434 1435 if (err < 0) { 1436 kfree(new); 1437 return err; 1438 } 1439 1440 _changed |= BSS_CHANGED_FTM_RESPONDER; 1441 } 1442 1443 rcu_assign_pointer(link->u.ap.beacon, new); 1444 sdata->u.ap.active = true; 1445 1446 if (old) 1447 kfree_rcu(old, rcu_head); 1448 1449 *changed |= _changed; 1450 return 0; 1451 } 1452 1453 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1454 { 1455 struct ieee80211_link_data *link; 1456 u8 link_id, num = 0; 1457 1458 if (sdata->vif.type != NL80211_IFTYPE_AP && 1459 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1460 return num; 1461 1462 /* non-MLO mode of operation also uses link_id 0 in sdata so it is 1463 * safe to directly proceed with the below loop 1464 */ 1465 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1466 link = sdata_dereference(sdata->link[link_id], sdata); 1467 if (!link) 1468 continue; 1469 1470 if (sdata_dereference(link->u.ap.beacon, sdata)) 1471 num++; 1472 } 1473 1474 return num; 1475 } 1476 1477 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1478 struct cfg80211_ap_settings *params) 1479 { 1480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1481 struct ieee80211_local *local = sdata->local; 1482 struct beacon_data *old; 1483 struct ieee80211_sub_if_data *vlan; 1484 u64 changed = BSS_CHANGED_BEACON_INT | 1485 BSS_CHANGED_BEACON_ENABLED | 1486 BSS_CHANGED_BEACON | 1487 BSS_CHANGED_P2P_PS | 1488 BSS_CHANGED_TXPOWER | 1489 BSS_CHANGED_TWT; 1490 int i, err; 1491 int prev_beacon_int; 1492 unsigned int link_id = params->beacon.link_id; 1493 struct ieee80211_link_data *link; 1494 struct ieee80211_bss_conf *link_conf; 1495 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1496 u64 tsf; 1497 1498 lockdep_assert_wiphy(local->hw.wiphy); 1499 1500 link = sdata_dereference(sdata->link[link_id], sdata); 1501 if (!link) 1502 return -ENOLINK; 1503 1504 link_conf = link->conf; 1505 1506 old = sdata_dereference(link->u.ap.beacon, sdata); 1507 if (old) 1508 return -EALREADY; 1509 1510 link->smps_mode = IEEE80211_SMPS_OFF; 1511 1512 link->needed_rx_chains = sdata->local->rx_chains; 1513 1514 prev_beacon_int = link_conf->beacon_int; 1515 link_conf->beacon_int = params->beacon_interval; 1516 1517 if (params->ht_cap) 1518 link_conf->ht_ldpc = 1519 params->ht_cap->cap_info & 1520 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1521 1522 if (params->vht_cap) { 1523 link_conf->vht_ldpc = 1524 params->vht_cap->vht_cap_info & 1525 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1526 link_conf->vht_su_beamformer = 1527 params->vht_cap->vht_cap_info & 1528 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1529 link_conf->vht_su_beamformee = 1530 params->vht_cap->vht_cap_info & 1531 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1532 link_conf->vht_mu_beamformer = 1533 params->vht_cap->vht_cap_info & 1534 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1535 link_conf->vht_mu_beamformee = 1536 params->vht_cap->vht_cap_info & 1537 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1538 } 1539 1540 if (params->he_cap && params->he_oper) { 1541 link_conf->he_support = true; 1542 link_conf->htc_trig_based_pkt_ext = 1543 le32_get_bits(params->he_oper->he_oper_params, 1544 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1545 link_conf->frame_time_rts_th = 1546 le32_get_bits(params->he_oper->he_oper_params, 1547 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1548 changed |= BSS_CHANGED_HE_OBSS_PD; 1549 1550 if (params->beacon.he_bss_color.enabled) 1551 changed |= BSS_CHANGED_HE_BSS_COLOR; 1552 } 1553 1554 if (params->he_cap) { 1555 link_conf->he_ldpc = 1556 params->he_cap->phy_cap_info[1] & 1557 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1558 link_conf->he_su_beamformer = 1559 params->he_cap->phy_cap_info[3] & 1560 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1561 link_conf->he_su_beamformee = 1562 params->he_cap->phy_cap_info[4] & 1563 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1564 link_conf->he_mu_beamformer = 1565 params->he_cap->phy_cap_info[4] & 1566 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1567 link_conf->he_full_ul_mumimo = 1568 params->he_cap->phy_cap_info[2] & 1569 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1570 } 1571 1572 if (params->eht_cap) { 1573 if (!link_conf->he_support) 1574 return -EOPNOTSUPP; 1575 1576 link_conf->eht_support = true; 1577 1578 link_conf->eht_su_beamformer = 1579 params->eht_cap->fixed.phy_cap_info[0] & 1580 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1581 link_conf->eht_su_beamformee = 1582 params->eht_cap->fixed.phy_cap_info[0] & 1583 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1584 link_conf->eht_mu_beamformer = 1585 params->eht_cap->fixed.phy_cap_info[7] & 1586 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1587 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1588 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1589 link_conf->eht_80mhz_full_bw_ul_mumimo = 1590 params->eht_cap->fixed.phy_cap_info[7] & 1591 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1592 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1593 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1594 link_conf->eht_disable_mcs15 = 1595 u8_get_bits(params->eht_oper->params, 1596 IEEE80211_EHT_OPER_MCS15_DISABLE); 1597 } else { 1598 link_conf->eht_su_beamformer = false; 1599 link_conf->eht_su_beamformee = false; 1600 link_conf->eht_mu_beamformer = false; 1601 } 1602 1603 if (sdata->vif.type == NL80211_IFTYPE_AP && 1604 params->mbssid_config.tx_wdev) { 1605 err = ieee80211_set_ap_mbssid_options(sdata, 1606 ¶ms->mbssid_config, 1607 link_conf); 1608 if (err) 1609 return err; 1610 } 1611 1612 err = ieee80211_link_use_channel(link, &chanreq, 1613 IEEE80211_CHANCTX_SHARED); 1614 if (!err) 1615 ieee80211_link_copy_chanctx_to_vlans(link, false); 1616 if (err) { 1617 link_conf->beacon_int = prev_beacon_int; 1618 return err; 1619 } 1620 1621 /* 1622 * Apply control port protocol, this allows us to 1623 * not encrypt dynamic WEP control frames. 1624 */ 1625 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1626 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1627 sdata->control_port_over_nl80211 = 1628 params->crypto.control_port_over_nl80211; 1629 sdata->control_port_no_preauth = 1630 params->crypto.control_port_no_preauth; 1631 1632 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1633 vlan->control_port_protocol = 1634 params->crypto.control_port_ethertype; 1635 vlan->control_port_no_encrypt = 1636 params->crypto.control_port_no_encrypt; 1637 vlan->control_port_over_nl80211 = 1638 params->crypto.control_port_over_nl80211; 1639 vlan->control_port_no_preauth = 1640 params->crypto.control_port_no_preauth; 1641 } 1642 1643 link_conf->dtim_period = params->dtim_period; 1644 link_conf->enable_beacon = true; 1645 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1646 link_conf->twt_responder = params->twt_responder; 1647 link_conf->he_obss_pd = params->he_obss_pd; 1648 link_conf->he_bss_color = params->beacon.he_bss_color; 1649 link_conf->s1g_long_beacon_period = params->s1g_long_beacon_period; 1650 sdata->vif.cfg.s1g = params->chandef.chan->band == NL80211_BAND_S1GHZ; 1651 1652 sdata->vif.cfg.ssid_len = params->ssid_len; 1653 if (params->ssid_len) 1654 memcpy(sdata->vif.cfg.ssid, params->ssid, 1655 params->ssid_len); 1656 link_conf->hidden_ssid = 1657 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1658 1659 memset(&link_conf->p2p_noa_attr, 0, 1660 sizeof(link_conf->p2p_noa_attr)); 1661 link_conf->p2p_noa_attr.oppps_ctwindow = 1662 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1663 if (params->p2p_opp_ps) 1664 link_conf->p2p_noa_attr.oppps_ctwindow |= 1665 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1666 1667 sdata->beacon_rate_set = false; 1668 if (wiphy_ext_feature_isset(local->hw.wiphy, 1669 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1670 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1671 sdata->beacon_rateidx_mask[i] = 1672 params->beacon_rate.control[i].legacy; 1673 if (sdata->beacon_rateidx_mask[i]) 1674 sdata->beacon_rate_set = true; 1675 } 1676 } 1677 1678 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1679 link_conf->beacon_tx_rate = params->beacon_rate; 1680 1681 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1682 &changed); 1683 if (err < 0) 1684 goto error; 1685 1686 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1687 link, link_conf, &changed); 1688 if (err < 0) 1689 goto error; 1690 1691 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1692 ¶ms->unsol_bcast_probe_resp, 1693 link, link_conf, &changed); 1694 if (err < 0) 1695 goto error; 1696 1697 if (sdata->vif.cfg.s1g) { 1698 err = ieee80211_set_s1g_short_beacon(sdata, link, 1699 ¶ms->s1g_short_beacon); 1700 if (err < 0) 1701 goto error; 1702 } 1703 1704 err = drv_start_ap(sdata->local, sdata, link_conf); 1705 if (err) { 1706 old = sdata_dereference(link->u.ap.beacon, sdata); 1707 1708 if (old) 1709 kfree_rcu(old, rcu_head); 1710 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1711 1712 if (ieee80211_num_beaconing_links(sdata) == 0) 1713 sdata->u.ap.active = false; 1714 1715 goto error; 1716 } 1717 1718 tsf = drv_get_tsf(local, sdata); 1719 ieee80211_recalc_dtim(sdata, tsf); 1720 1721 if (link->u.ap.s1g_short_beacon) 1722 ieee80211_recalc_sb_count(sdata, tsf); 1723 1724 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1725 ieee80211_link_info_change_notify(sdata, link, changed); 1726 1727 if (ieee80211_num_beaconing_links(sdata) <= 1) 1728 netif_carrier_on(dev); 1729 1730 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1731 netif_carrier_on(vlan->dev); 1732 1733 return 0; 1734 1735 error: 1736 ieee80211_link_release_channel(link); 1737 1738 return err; 1739 } 1740 1741 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1742 struct cfg80211_ap_update *params) 1743 1744 { 1745 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1746 struct ieee80211_link_data *link; 1747 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1748 struct beacon_data *old; 1749 int err; 1750 struct ieee80211_bss_conf *link_conf; 1751 u64 changed = 0; 1752 1753 lockdep_assert_wiphy(wiphy); 1754 1755 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1756 if (!link) 1757 return -ENOLINK; 1758 1759 link_conf = link->conf; 1760 1761 /* don't allow changing the beacon while a countdown is in place - offset 1762 * of channel switch counter may change 1763 */ 1764 if (link_conf->csa_active || link_conf->color_change_active) 1765 return -EBUSY; 1766 1767 old = sdata_dereference(link->u.ap.beacon, sdata); 1768 if (!old) 1769 return -ENOENT; 1770 1771 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1772 &changed); 1773 if (err < 0) 1774 return err; 1775 1776 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1777 link, link_conf, &changed); 1778 if (err < 0) 1779 return err; 1780 1781 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1782 ¶ms->unsol_bcast_probe_resp, 1783 link, link_conf, &changed); 1784 if (err < 0) 1785 return err; 1786 1787 if (link->u.ap.s1g_short_beacon) { 1788 err = ieee80211_set_s1g_short_beacon(sdata, link, 1789 ¶ms->s1g_short_beacon); 1790 if (err < 0) 1791 return err; 1792 } 1793 1794 if (beacon->he_bss_color_valid && 1795 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1796 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1797 changed |= BSS_CHANGED_HE_BSS_COLOR; 1798 } 1799 1800 ieee80211_link_info_change_notify(sdata, link, changed); 1801 return 0; 1802 } 1803 1804 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1805 { 1806 if (!link->u.ap.next_beacon) 1807 return; 1808 1809 kfree(link->u.ap.next_beacon->mbssid_ies); 1810 kfree(link->u.ap.next_beacon->rnr_ies); 1811 kfree(link->u.ap.next_beacon); 1812 link->u.ap.next_beacon = NULL; 1813 } 1814 1815 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1816 unsigned int link_id) 1817 { 1818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1819 struct ieee80211_sub_if_data *vlan; 1820 struct ieee80211_local *local = sdata->local; 1821 struct beacon_data *old_beacon; 1822 struct probe_resp *old_probe_resp; 1823 struct fils_discovery_data *old_fils_discovery; 1824 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1825 struct s1g_short_beacon_data *old_s1g_short_beacon; 1826 struct cfg80211_chan_def chandef; 1827 struct ieee80211_link_data *link = 1828 sdata_dereference(sdata->link[link_id], sdata); 1829 struct ieee80211_bss_conf *link_conf = link->conf; 1830 LIST_HEAD(keys); 1831 1832 lockdep_assert_wiphy(local->hw.wiphy); 1833 1834 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1835 if (!old_beacon) 1836 return -ENOENT; 1837 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1838 sdata); 1839 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1840 sdata); 1841 old_unsol_bcast_probe_resp = 1842 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1843 sdata); 1844 old_s1g_short_beacon = 1845 sdata_dereference(link->u.ap.s1g_short_beacon, sdata); 1846 1847 /* abort any running channel switch or color change */ 1848 link_conf->csa_active = false; 1849 link_conf->color_change_active = false; 1850 ieee80211_vif_unblock_queues_csa(sdata); 1851 1852 ieee80211_free_next_beacon(link); 1853 1854 /* turn off carrier for this interface and dependent VLANs */ 1855 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1856 netif_carrier_off(vlan->dev); 1857 1858 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1859 netif_carrier_off(dev); 1860 sdata->u.ap.active = false; 1861 } 1862 1863 /* remove beacon and probe response */ 1864 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1865 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1866 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1867 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1868 RCU_INIT_POINTER(link->u.ap.s1g_short_beacon, NULL); 1869 kfree_rcu(old_beacon, rcu_head); 1870 if (old_probe_resp) 1871 kfree_rcu(old_probe_resp, rcu_head); 1872 if (old_fils_discovery) 1873 kfree_rcu(old_fils_discovery, rcu_head); 1874 if (old_unsol_bcast_probe_resp) 1875 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1876 if (old_s1g_short_beacon) 1877 kfree_rcu(old_s1g_short_beacon, rcu_head); 1878 1879 kfree(link_conf->ftmr_params); 1880 link_conf->ftmr_params = NULL; 1881 1882 link_conf->bssid_index = 0; 1883 link_conf->nontransmitted = false; 1884 link_conf->ema_ap = false; 1885 link_conf->bssid_indicator = 0; 1886 link_conf->fils_discovery.min_interval = 0; 1887 link_conf->fils_discovery.max_interval = 0; 1888 link_conf->unsol_bcast_probe_resp_interval = 0; 1889 1890 __sta_info_flush(sdata, true, link_id, NULL); 1891 1892 ieee80211_remove_link_keys(link, &keys); 1893 if (!list_empty(&keys)) { 1894 synchronize_net(); 1895 ieee80211_free_key_list(local, &keys); 1896 } 1897 1898 ieee80211_stop_mbssid(sdata); 1899 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL); 1900 1901 link_conf->enable_beacon = false; 1902 sdata->beacon_rate_set = false; 1903 sdata->vif.cfg.ssid_len = 0; 1904 sdata->vif.cfg.s1g = false; 1905 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1906 ieee80211_link_info_change_notify(sdata, link, 1907 BSS_CHANGED_BEACON_ENABLED); 1908 1909 if (sdata->wdev.links[link_id].cac_started) { 1910 chandef = link_conf->chanreq.oper; 1911 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1912 cfg80211_cac_event(sdata->dev, &chandef, 1913 NL80211_RADAR_CAC_ABORTED, 1914 GFP_KERNEL, link_id); 1915 } 1916 1917 drv_stop_ap(sdata->local, sdata, link_conf); 1918 1919 /* free all potentially still buffered bcast frames */ 1920 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1921 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1922 1923 ieee80211_link_copy_chanctx_to_vlans(link, true); 1924 ieee80211_link_release_channel(link); 1925 1926 return 0; 1927 } 1928 1929 static int sta_apply_auth_flags(struct ieee80211_local *local, 1930 struct sta_info *sta, 1931 u32 mask, u32 set) 1932 { 1933 int ret; 1934 1935 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1936 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1937 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1938 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1939 if (ret) 1940 return ret; 1941 } 1942 1943 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1944 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1945 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1946 /* 1947 * When peer becomes associated, init rate control as 1948 * well. Some drivers require rate control initialized 1949 * before drv_sta_state() is called. 1950 */ 1951 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1952 rate_control_rate_init_all_links(sta); 1953 1954 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1955 if (ret) 1956 return ret; 1957 } 1958 1959 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1960 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1961 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1962 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1963 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1964 else 1965 ret = 0; 1966 if (ret) 1967 return ret; 1968 } 1969 1970 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1971 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1972 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1973 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1974 if (ret) 1975 return ret; 1976 } 1977 1978 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1979 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1980 test_sta_flag(sta, WLAN_STA_AUTH)) { 1981 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1982 if (ret) 1983 return ret; 1984 } 1985 1986 return 0; 1987 } 1988 1989 static void sta_apply_mesh_params(struct ieee80211_local *local, 1990 struct sta_info *sta, 1991 struct station_parameters *params) 1992 { 1993 #ifdef CONFIG_MAC80211_MESH 1994 struct ieee80211_sub_if_data *sdata = sta->sdata; 1995 u64 changed = 0; 1996 1997 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1998 switch (params->plink_state) { 1999 case NL80211_PLINK_ESTAB: 2000 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 2001 changed = mesh_plink_inc_estab_count(sdata); 2002 sta->mesh->plink_state = params->plink_state; 2003 sta->mesh->aid = params->peer_aid; 2004 2005 ieee80211_mps_sta_status_update(sta); 2006 changed |= ieee80211_mps_set_sta_local_pm(sta, 2007 sdata->u.mesh.mshcfg.power_mode); 2008 2009 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 2010 /* init at low value */ 2011 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 2012 2013 break; 2014 case NL80211_PLINK_LISTEN: 2015 case NL80211_PLINK_BLOCKED: 2016 case NL80211_PLINK_OPN_SNT: 2017 case NL80211_PLINK_OPN_RCVD: 2018 case NL80211_PLINK_CNF_RCVD: 2019 case NL80211_PLINK_HOLDING: 2020 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 2021 changed = mesh_plink_dec_estab_count(sdata); 2022 sta->mesh->plink_state = params->plink_state; 2023 2024 ieee80211_mps_sta_status_update(sta); 2025 changed |= ieee80211_mps_set_sta_local_pm(sta, 2026 NL80211_MESH_POWER_UNKNOWN); 2027 break; 2028 default: 2029 /* nothing */ 2030 break; 2031 } 2032 } 2033 2034 switch (params->plink_action) { 2035 case NL80211_PLINK_ACTION_NO_ACTION: 2036 /* nothing */ 2037 break; 2038 case NL80211_PLINK_ACTION_OPEN: 2039 changed |= mesh_plink_open(sta); 2040 break; 2041 case NL80211_PLINK_ACTION_BLOCK: 2042 changed |= mesh_plink_block(sta); 2043 break; 2044 } 2045 2046 if (params->local_pm) 2047 changed |= ieee80211_mps_set_sta_local_pm(sta, 2048 params->local_pm); 2049 2050 ieee80211_mbss_info_change_notify(sdata, changed); 2051 #endif 2052 } 2053 2054 enum sta_link_apply_mode { 2055 STA_LINK_MODE_NEW, 2056 STA_LINK_MODE_STA_MODIFY, 2057 STA_LINK_MODE_LINK_MODIFY, 2058 }; 2059 2060 static int sta_link_apply_parameters(struct ieee80211_local *local, 2061 struct sta_info *sta, 2062 enum sta_link_apply_mode mode, 2063 struct link_station_parameters *params) 2064 { 2065 struct ieee80211_supported_band *sband; 2066 struct ieee80211_sub_if_data *sdata = sta->sdata; 2067 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 2068 struct ieee80211_link_data *link = 2069 sdata_dereference(sdata->link[link_id], sdata); 2070 struct link_sta_info *link_sta = 2071 rcu_dereference_protected(sta->link[link_id], 2072 lockdep_is_held(&local->hw.wiphy->mtx)); 2073 bool changes = params->link_mac || 2074 params->txpwr_set || 2075 params->supported_rates_len || 2076 params->ht_capa || 2077 params->vht_capa || 2078 params->he_capa || 2079 params->eht_capa || 2080 params->s1g_capa || 2081 params->opmode_notif_used; 2082 2083 switch (mode) { 2084 case STA_LINK_MODE_NEW: 2085 if (!params->link_mac) 2086 return -EINVAL; 2087 break; 2088 case STA_LINK_MODE_LINK_MODIFY: 2089 break; 2090 case STA_LINK_MODE_STA_MODIFY: 2091 if (params->link_id >= 0) 2092 break; 2093 if (!changes) 2094 return 0; 2095 break; 2096 } 2097 2098 if (!link || !link_sta) 2099 return -EINVAL; 2100 2101 sband = ieee80211_get_link_sband(link); 2102 if (!sband) 2103 return -EINVAL; 2104 2105 if (params->link_mac) { 2106 if (mode == STA_LINK_MODE_NEW) { 2107 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 2108 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 2109 } else if (!ether_addr_equal(link_sta->addr, 2110 params->link_mac)) { 2111 return -EINVAL; 2112 } 2113 } 2114 2115 if (params->txpwr_set) { 2116 int ret; 2117 2118 link_sta->pub->txpwr.type = params->txpwr.type; 2119 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 2120 link_sta->pub->txpwr.power = params->txpwr.power; 2121 ret = drv_sta_set_txpwr(local, sdata, sta); 2122 if (ret) 2123 return ret; 2124 } 2125 2126 if (params->supported_rates && 2127 params->supported_rates_len && 2128 !ieee80211_parse_bitrates(sband, params->supported_rates, 2129 params->supported_rates_len, 2130 &link_sta->pub->supp_rates[sband->band])) 2131 return -EINVAL; 2132 2133 if (params->ht_capa) 2134 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 2135 params->ht_capa, link_sta); 2136 2137 /* VHT can override some HT caps such as the A-MSDU max length */ 2138 if (params->vht_capa) 2139 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 2140 params->vht_capa, NULL, 2141 link_sta); 2142 2143 if (params->he_capa) 2144 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 2145 (void *)params->he_capa, 2146 params->he_capa_len, 2147 (void *)params->he_6ghz_capa, 2148 link_sta); 2149 2150 if (params->he_capa && params->eht_capa) 2151 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 2152 (u8 *)params->he_capa, 2153 params->he_capa_len, 2154 params->eht_capa, 2155 params->eht_capa_len, 2156 link_sta); 2157 2158 if (params->s1g_capa) 2159 ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa, 2160 link_sta); 2161 2162 ieee80211_sta_init_nss(link_sta); 2163 2164 if (params->opmode_notif_used) { 2165 enum nl80211_chan_width width = link->conf->chanreq.oper.width; 2166 2167 switch (width) { 2168 case NL80211_CHAN_WIDTH_20: 2169 case NL80211_CHAN_WIDTH_40: 2170 case NL80211_CHAN_WIDTH_80: 2171 case NL80211_CHAN_WIDTH_160: 2172 case NL80211_CHAN_WIDTH_80P80: 2173 case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */ 2174 break; 2175 default: 2176 return -EINVAL; 2177 } 2178 2179 /* returned value is only needed for rc update, but the 2180 * rc isn't initialized here yet, so ignore it 2181 */ 2182 __ieee80211_vht_handle_opmode(sdata, link_sta, 2183 params->opmode_notif, 2184 sband->band); 2185 } 2186 2187 return 0; 2188 } 2189 2190 static int sta_apply_parameters(struct ieee80211_local *local, 2191 struct sta_info *sta, 2192 struct station_parameters *params) 2193 { 2194 struct ieee80211_sub_if_data *sdata = sta->sdata; 2195 u32 mask, set; 2196 int ret = 0; 2197 2198 mask = params->sta_flags_mask; 2199 set = params->sta_flags_set; 2200 2201 if (ieee80211_vif_is_mesh(&sdata->vif)) { 2202 /* 2203 * In mesh mode, ASSOCIATED isn't part of the nl80211 2204 * API but must follow AUTHENTICATED for driver state. 2205 */ 2206 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2207 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2208 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2209 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2210 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2211 /* 2212 * TDLS -- everything follows authorized, but 2213 * only becoming authorized is possible, not 2214 * going back 2215 */ 2216 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2217 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2218 BIT(NL80211_STA_FLAG_ASSOCIATED); 2219 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2220 BIT(NL80211_STA_FLAG_ASSOCIATED); 2221 } 2222 } 2223 2224 if (mask & BIT(NL80211_STA_FLAG_WME) && 2225 local->hw.queues >= IEEE80211_NUM_ACS) 2226 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 2227 2228 /* auth flags will be set later for TDLS, 2229 * and for unassociated stations that move to associated */ 2230 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2231 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 2232 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2233 ret = sta_apply_auth_flags(local, sta, mask, set); 2234 if (ret) 2235 return ret; 2236 } 2237 2238 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2239 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2240 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2241 else 2242 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2243 } 2244 2245 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2246 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2247 if (set & BIT(NL80211_STA_FLAG_MFP)) 2248 set_sta_flag(sta, WLAN_STA_MFP); 2249 else 2250 clear_sta_flag(sta, WLAN_STA_MFP); 2251 } 2252 2253 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2254 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2255 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2256 else 2257 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2258 } 2259 2260 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2261 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2262 2263 /* mark TDLS channel switch support, if the AP allows it */ 2264 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2265 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2266 params->ext_capab_len >= 4 && 2267 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2268 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2269 2270 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2271 !sdata->u.mgd.tdls_wider_bw_prohibited && 2272 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2273 params->ext_capab_len >= 8 && 2274 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2275 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2276 2277 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2278 sta->sta.uapsd_queues = params->uapsd_queues; 2279 sta->sta.max_sp = params->max_sp; 2280 } 2281 2282 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2283 params->ext_capab_len); 2284 2285 /* 2286 * cfg80211 validates this (1-2007) and allows setting the AID 2287 * only when creating a new station entry. For S1G APs, the current 2288 * implementation supports a maximum of 1600 AIDs. 2289 */ 2290 if (params->aid) { 2291 if (sdata->vif.cfg.s1g && 2292 params->aid > IEEE80211_MAX_SUPPORTED_S1G_AID) 2293 return -EINVAL; 2294 2295 sta->sta.aid = params->aid; 2296 } 2297 2298 /* 2299 * Some of the following updates would be racy if called on an 2300 * existing station, via ieee80211_change_station(). However, 2301 * all such changes are rejected by cfg80211 except for updates 2302 * changing the supported rates on an existing but not yet used 2303 * TDLS peer. 2304 */ 2305 2306 if (params->listen_interval >= 0) 2307 sta->listen_interval = params->listen_interval; 2308 2309 if (params->eml_cap_present) 2310 sta->sta.eml_cap = params->eml_cap; 2311 2312 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2313 ¶ms->link_sta_params); 2314 if (ret) 2315 return ret; 2316 2317 if (params->support_p2p_ps >= 0) 2318 sta->sta.support_p2p_ps = params->support_p2p_ps; 2319 2320 if (ieee80211_vif_is_mesh(&sdata->vif)) 2321 sta_apply_mesh_params(local, sta, params); 2322 2323 if (params->airtime_weight) 2324 sta->airtime_weight = params->airtime_weight; 2325 2326 /* set the STA state after all sta info from usermode has been set */ 2327 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2328 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2329 ret = sta_apply_auth_flags(local, sta, mask, set); 2330 if (ret) 2331 return ret; 2332 } 2333 2334 /* Mark the STA as MLO if MLD MAC address is available */ 2335 if (params->link_sta_params.mld_mac) 2336 sta->sta.mlo = true; 2337 2338 return 0; 2339 } 2340 2341 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2342 const u8 *mac, 2343 struct station_parameters *params) 2344 { 2345 struct ieee80211_local *local = wiphy_priv(wiphy); 2346 struct sta_info *sta; 2347 struct ieee80211_sub_if_data *sdata; 2348 int err; 2349 2350 lockdep_assert_wiphy(local->hw.wiphy); 2351 2352 if (params->vlan) { 2353 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2354 2355 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2356 sdata->vif.type != NL80211_IFTYPE_AP) 2357 return -EINVAL; 2358 } else 2359 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2360 2361 if (ether_addr_equal(mac, sdata->vif.addr)) 2362 return -EINVAL; 2363 2364 if (!is_valid_ether_addr(mac)) 2365 return -EINVAL; 2366 2367 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2368 sdata->vif.type == NL80211_IFTYPE_STATION && 2369 !sdata->u.mgd.associated) 2370 return -EINVAL; 2371 2372 /* 2373 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2374 * but we need to have a link_mac in that case as well, so use the 2375 * STA's MAC address in that case. 2376 */ 2377 if (params->link_sta_params.link_id >= 0) 2378 sta = sta_info_alloc_with_link(sdata, mac, 2379 params->link_sta_params.link_id, 2380 params->link_sta_params.link_mac ?: mac, 2381 GFP_KERNEL); 2382 else 2383 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2384 2385 if (!sta) 2386 return -ENOMEM; 2387 2388 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2389 sta->sta.tdls = true; 2390 2391 /* Though the mutex is not needed here (since the station is not 2392 * visible yet), sta_apply_parameters (and inner functions) require 2393 * the mutex due to other paths. 2394 */ 2395 err = sta_apply_parameters(local, sta, params); 2396 if (err) { 2397 sta_info_free(local, sta); 2398 return err; 2399 } 2400 2401 /* 2402 * for TDLS and for unassociated station, rate control should be 2403 * initialized only when rates are known and station is marked 2404 * authorized/associated 2405 */ 2406 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2407 test_sta_flag(sta, WLAN_STA_ASSOC)) 2408 rate_control_rate_init_all_links(sta); 2409 2410 return sta_info_insert(sta); 2411 } 2412 2413 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2414 struct station_del_parameters *params) 2415 { 2416 struct ieee80211_sub_if_data *sdata; 2417 2418 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2419 2420 if (params->mac) 2421 return sta_info_destroy_addr_bss(sdata, params->mac); 2422 2423 sta_info_flush(sdata, params->link_id); 2424 return 0; 2425 } 2426 2427 static int ieee80211_change_station(struct wiphy *wiphy, 2428 struct net_device *dev, const u8 *mac, 2429 struct station_parameters *params) 2430 { 2431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2432 struct ieee80211_local *local = wiphy_priv(wiphy); 2433 struct sta_info *sta; 2434 struct ieee80211_sub_if_data *vlansdata; 2435 enum cfg80211_station_type statype; 2436 int err; 2437 2438 lockdep_assert_wiphy(local->hw.wiphy); 2439 2440 sta = sta_info_get_bss(sdata, mac); 2441 if (!sta) 2442 return -ENOENT; 2443 2444 switch (sdata->vif.type) { 2445 case NL80211_IFTYPE_MESH_POINT: 2446 if (sdata->u.mesh.user_mpm) 2447 statype = CFG80211_STA_MESH_PEER_USER; 2448 else 2449 statype = CFG80211_STA_MESH_PEER_KERNEL; 2450 break; 2451 case NL80211_IFTYPE_ADHOC: 2452 statype = CFG80211_STA_IBSS; 2453 break; 2454 case NL80211_IFTYPE_STATION: 2455 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2456 statype = CFG80211_STA_AP_STA; 2457 break; 2458 } 2459 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2460 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2461 else 2462 statype = CFG80211_STA_TDLS_PEER_SETUP; 2463 break; 2464 case NL80211_IFTYPE_AP: 2465 case NL80211_IFTYPE_AP_VLAN: 2466 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2467 statype = CFG80211_STA_AP_CLIENT; 2468 else 2469 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2470 break; 2471 default: 2472 return -EOPNOTSUPP; 2473 } 2474 2475 err = cfg80211_check_station_change(wiphy, params, statype); 2476 if (err) 2477 return err; 2478 2479 if (params->vlan && params->vlan != sta->sdata->dev) { 2480 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2481 2482 if (params->vlan->ieee80211_ptr->use_4addr) { 2483 if (vlansdata->u.vlan.sta) 2484 return -EBUSY; 2485 2486 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2487 __ieee80211_check_fast_rx_iface(vlansdata); 2488 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2489 } 2490 2491 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2492 sta->sdata->u.vlan.sta) 2493 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2494 2495 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2496 ieee80211_vif_dec_num_mcast(sta->sdata); 2497 2498 sta->sdata = vlansdata; 2499 ieee80211_check_fast_rx(sta); 2500 ieee80211_check_fast_xmit(sta); 2501 2502 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2503 ieee80211_vif_inc_num_mcast(sta->sdata); 2504 cfg80211_send_layer2_update(sta->sdata->dev, 2505 sta->sta.addr); 2506 } 2507 } 2508 2509 err = sta_apply_parameters(local, sta, params); 2510 if (err) 2511 return err; 2512 2513 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2514 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2515 ieee80211_recalc_ps(local); 2516 ieee80211_recalc_ps_vif(sdata); 2517 } 2518 2519 return 0; 2520 } 2521 2522 #ifdef CONFIG_MAC80211_MESH 2523 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2524 const u8 *dst, const u8 *next_hop) 2525 { 2526 struct ieee80211_sub_if_data *sdata; 2527 struct mesh_path *mpath; 2528 struct sta_info *sta; 2529 2530 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2531 2532 rcu_read_lock(); 2533 sta = sta_info_get(sdata, next_hop); 2534 if (!sta) { 2535 rcu_read_unlock(); 2536 return -ENOENT; 2537 } 2538 2539 mpath = mesh_path_add(sdata, dst); 2540 if (IS_ERR(mpath)) { 2541 rcu_read_unlock(); 2542 return PTR_ERR(mpath); 2543 } 2544 2545 mesh_path_fix_nexthop(mpath, sta); 2546 2547 rcu_read_unlock(); 2548 return 0; 2549 } 2550 2551 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2552 const u8 *dst) 2553 { 2554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2555 2556 if (dst) 2557 return mesh_path_del(sdata, dst); 2558 2559 mesh_path_flush_by_iface(sdata); 2560 return 0; 2561 } 2562 2563 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2564 const u8 *dst, const u8 *next_hop) 2565 { 2566 struct ieee80211_sub_if_data *sdata; 2567 struct mesh_path *mpath; 2568 struct sta_info *sta; 2569 2570 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2571 2572 rcu_read_lock(); 2573 2574 sta = sta_info_get(sdata, next_hop); 2575 if (!sta) { 2576 rcu_read_unlock(); 2577 return -ENOENT; 2578 } 2579 2580 mpath = mesh_path_lookup(sdata, dst); 2581 if (!mpath) { 2582 rcu_read_unlock(); 2583 return -ENOENT; 2584 } 2585 2586 mesh_path_fix_nexthop(mpath, sta); 2587 2588 rcu_read_unlock(); 2589 return 0; 2590 } 2591 2592 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2593 struct mpath_info *pinfo) 2594 { 2595 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2596 2597 if (next_hop_sta) 2598 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2599 else 2600 eth_zero_addr(next_hop); 2601 2602 memset(pinfo, 0, sizeof(*pinfo)); 2603 2604 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2605 2606 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2607 MPATH_INFO_SN | 2608 MPATH_INFO_METRIC | 2609 MPATH_INFO_EXPTIME | 2610 MPATH_INFO_DISCOVERY_TIMEOUT | 2611 MPATH_INFO_DISCOVERY_RETRIES | 2612 MPATH_INFO_FLAGS | 2613 MPATH_INFO_HOP_COUNT | 2614 MPATH_INFO_PATH_CHANGE; 2615 2616 pinfo->frame_qlen = mpath->frame_queue.qlen; 2617 pinfo->sn = mpath->sn; 2618 pinfo->metric = mpath->metric; 2619 if (time_before(jiffies, mpath->exp_time)) 2620 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2621 pinfo->discovery_timeout = 2622 jiffies_to_msecs(mpath->discovery_timeout); 2623 pinfo->discovery_retries = mpath->discovery_retries; 2624 if (mpath->flags & MESH_PATH_ACTIVE) 2625 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2626 if (mpath->flags & MESH_PATH_RESOLVING) 2627 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2628 if (mpath->flags & MESH_PATH_SN_VALID) 2629 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2630 if (mpath->flags & MESH_PATH_FIXED) 2631 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2632 if (mpath->flags & MESH_PATH_RESOLVED) 2633 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2634 pinfo->hop_count = mpath->hop_count; 2635 pinfo->path_change_count = mpath->path_change_count; 2636 } 2637 2638 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2639 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2640 2641 { 2642 struct ieee80211_sub_if_data *sdata; 2643 struct mesh_path *mpath; 2644 2645 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2646 2647 rcu_read_lock(); 2648 mpath = mesh_path_lookup(sdata, dst); 2649 if (!mpath) { 2650 rcu_read_unlock(); 2651 return -ENOENT; 2652 } 2653 memcpy(dst, mpath->dst, ETH_ALEN); 2654 mpath_set_pinfo(mpath, next_hop, pinfo); 2655 rcu_read_unlock(); 2656 return 0; 2657 } 2658 2659 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2660 int idx, u8 *dst, u8 *next_hop, 2661 struct mpath_info *pinfo) 2662 { 2663 struct ieee80211_sub_if_data *sdata; 2664 struct mesh_path *mpath; 2665 2666 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2667 2668 rcu_read_lock(); 2669 mpath = mesh_path_lookup_by_idx(sdata, idx); 2670 if (!mpath) { 2671 rcu_read_unlock(); 2672 return -ENOENT; 2673 } 2674 memcpy(dst, mpath->dst, ETH_ALEN); 2675 mpath_set_pinfo(mpath, next_hop, pinfo); 2676 rcu_read_unlock(); 2677 return 0; 2678 } 2679 2680 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2681 struct mpath_info *pinfo) 2682 { 2683 memset(pinfo, 0, sizeof(*pinfo)); 2684 memcpy(mpp, mpath->mpp, ETH_ALEN); 2685 2686 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2687 } 2688 2689 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2690 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2691 2692 { 2693 struct ieee80211_sub_if_data *sdata; 2694 struct mesh_path *mpath; 2695 2696 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2697 2698 rcu_read_lock(); 2699 mpath = mpp_path_lookup(sdata, dst); 2700 if (!mpath) { 2701 rcu_read_unlock(); 2702 return -ENOENT; 2703 } 2704 memcpy(dst, mpath->dst, ETH_ALEN); 2705 mpp_set_pinfo(mpath, mpp, pinfo); 2706 rcu_read_unlock(); 2707 return 0; 2708 } 2709 2710 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2711 int idx, u8 *dst, u8 *mpp, 2712 struct mpath_info *pinfo) 2713 { 2714 struct ieee80211_sub_if_data *sdata; 2715 struct mesh_path *mpath; 2716 2717 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2718 2719 rcu_read_lock(); 2720 mpath = mpp_path_lookup_by_idx(sdata, idx); 2721 if (!mpath) { 2722 rcu_read_unlock(); 2723 return -ENOENT; 2724 } 2725 memcpy(dst, mpath->dst, ETH_ALEN); 2726 mpp_set_pinfo(mpath, mpp, pinfo); 2727 rcu_read_unlock(); 2728 return 0; 2729 } 2730 2731 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2732 struct net_device *dev, 2733 struct mesh_config *conf) 2734 { 2735 struct ieee80211_sub_if_data *sdata; 2736 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2737 2738 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2739 return 0; 2740 } 2741 2742 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2743 { 2744 return (mask >> (parm-1)) & 0x1; 2745 } 2746 2747 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2748 const struct mesh_setup *setup) 2749 { 2750 u8 *new_ie; 2751 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2752 struct ieee80211_sub_if_data, u.mesh); 2753 int i; 2754 2755 /* allocate information elements */ 2756 new_ie = NULL; 2757 2758 if (setup->ie_len) { 2759 new_ie = kmemdup(setup->ie, setup->ie_len, 2760 GFP_KERNEL); 2761 if (!new_ie) 2762 return -ENOMEM; 2763 } 2764 ifmsh->ie_len = setup->ie_len; 2765 ifmsh->ie = new_ie; 2766 2767 /* now copy the rest of the setup parameters */ 2768 ifmsh->mesh_id_len = setup->mesh_id_len; 2769 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2770 ifmsh->mesh_sp_id = setup->sync_method; 2771 ifmsh->mesh_pp_id = setup->path_sel_proto; 2772 ifmsh->mesh_pm_id = setup->path_metric; 2773 ifmsh->user_mpm = setup->user_mpm; 2774 ifmsh->mesh_auth_id = setup->auth_id; 2775 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2776 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2777 if (setup->is_authenticated) 2778 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2779 if (setup->is_secure) 2780 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2781 2782 /* mcast rate setting in Mesh Node */ 2783 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2784 sizeof(setup->mcast_rate)); 2785 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2786 2787 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2788 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2789 2790 sdata->beacon_rate_set = false; 2791 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2792 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2793 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2794 sdata->beacon_rateidx_mask[i] = 2795 setup->beacon_rate.control[i].legacy; 2796 if (sdata->beacon_rateidx_mask[i]) 2797 sdata->beacon_rate_set = true; 2798 } 2799 } 2800 2801 return 0; 2802 } 2803 2804 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2805 struct net_device *dev, u32 mask, 2806 const struct mesh_config *nconf) 2807 { 2808 struct mesh_config *conf; 2809 struct ieee80211_sub_if_data *sdata; 2810 struct ieee80211_if_mesh *ifmsh; 2811 2812 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2813 ifmsh = &sdata->u.mesh; 2814 2815 /* Set the config options which we are interested in setting */ 2816 conf = &(sdata->u.mesh.mshcfg); 2817 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2818 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2819 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2820 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2821 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2822 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2823 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2824 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2825 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2826 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2827 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2828 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2829 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2830 conf->element_ttl = nconf->element_ttl; 2831 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2832 if (ifmsh->user_mpm) 2833 return -EBUSY; 2834 conf->auto_open_plinks = nconf->auto_open_plinks; 2835 } 2836 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2837 conf->dot11MeshNbrOffsetMaxNeighbor = 2838 nconf->dot11MeshNbrOffsetMaxNeighbor; 2839 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2840 conf->dot11MeshHWMPmaxPREQretries = 2841 nconf->dot11MeshHWMPmaxPREQretries; 2842 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2843 conf->path_refresh_time = nconf->path_refresh_time; 2844 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2845 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2846 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2847 conf->dot11MeshHWMPactivePathTimeout = 2848 nconf->dot11MeshHWMPactivePathTimeout; 2849 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2850 conf->dot11MeshHWMPpreqMinInterval = 2851 nconf->dot11MeshHWMPpreqMinInterval; 2852 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2853 conf->dot11MeshHWMPperrMinInterval = 2854 nconf->dot11MeshHWMPperrMinInterval; 2855 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2856 mask)) 2857 conf->dot11MeshHWMPnetDiameterTraversalTime = 2858 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2859 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2860 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2861 ieee80211_mesh_root_setup(ifmsh); 2862 } 2863 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2864 /* our current gate announcement implementation rides on root 2865 * announcements, so require this ifmsh to also be a root node 2866 * */ 2867 if (nconf->dot11MeshGateAnnouncementProtocol && 2868 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2869 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2870 ieee80211_mesh_root_setup(ifmsh); 2871 } 2872 conf->dot11MeshGateAnnouncementProtocol = 2873 nconf->dot11MeshGateAnnouncementProtocol; 2874 } 2875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2876 conf->dot11MeshHWMPRannInterval = 2877 nconf->dot11MeshHWMPRannInterval; 2878 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2879 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2880 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2881 /* our RSSI threshold implementation is supported only for 2882 * devices that report signal in dBm. 2883 */ 2884 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2885 return -EOPNOTSUPP; 2886 conf->rssi_threshold = nconf->rssi_threshold; 2887 } 2888 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2889 conf->ht_opmode = nconf->ht_opmode; 2890 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2891 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2892 BSS_CHANGED_HT); 2893 } 2894 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2895 conf->dot11MeshHWMPactivePathToRootTimeout = 2896 nconf->dot11MeshHWMPactivePathToRootTimeout; 2897 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2898 conf->dot11MeshHWMProotInterval = 2899 nconf->dot11MeshHWMProotInterval; 2900 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2901 conf->dot11MeshHWMPconfirmationInterval = 2902 nconf->dot11MeshHWMPconfirmationInterval; 2903 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2904 conf->power_mode = nconf->power_mode; 2905 ieee80211_mps_local_status_update(sdata); 2906 } 2907 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2908 conf->dot11MeshAwakeWindowDuration = 2909 nconf->dot11MeshAwakeWindowDuration; 2910 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2911 conf->plink_timeout = nconf->plink_timeout; 2912 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2913 conf->dot11MeshConnectedToMeshGate = 2914 nconf->dot11MeshConnectedToMeshGate; 2915 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2916 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2917 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2918 conf->dot11MeshConnectedToAuthServer = 2919 nconf->dot11MeshConnectedToAuthServer; 2920 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2921 return 0; 2922 } 2923 2924 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2925 const struct mesh_config *conf, 2926 const struct mesh_setup *setup) 2927 { 2928 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2929 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2930 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2931 int err; 2932 2933 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2934 2935 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2936 err = copy_mesh_setup(ifmsh, setup); 2937 if (err) 2938 return err; 2939 2940 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2941 2942 /* can mesh use other SMPS modes? */ 2943 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2944 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2945 2946 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2947 IEEE80211_CHANCTX_SHARED); 2948 if (err) 2949 return err; 2950 2951 return ieee80211_start_mesh(sdata); 2952 } 2953 2954 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2955 { 2956 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2957 2958 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2959 2960 ieee80211_stop_mesh(sdata); 2961 ieee80211_link_release_channel(&sdata->deflink); 2962 kfree(sdata->u.mesh.ie); 2963 2964 return 0; 2965 } 2966 #endif 2967 2968 static int ieee80211_change_bss(struct wiphy *wiphy, 2969 struct net_device *dev, 2970 struct bss_parameters *params) 2971 { 2972 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2973 struct ieee80211_link_data *link; 2974 struct ieee80211_supported_band *sband; 2975 u64 changed = 0; 2976 2977 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2978 if (IS_ERR(link)) 2979 return PTR_ERR(link); 2980 2981 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2982 return -ENOENT; 2983 2984 sband = ieee80211_get_link_sband(link); 2985 if (!sband) 2986 return -EINVAL; 2987 2988 if (params->basic_rates) { 2989 if (!ieee80211_parse_bitrates(sband, 2990 params->basic_rates, 2991 params->basic_rates_len, 2992 &link->conf->basic_rates)) 2993 return -EINVAL; 2994 changed |= BSS_CHANGED_BASIC_RATES; 2995 ieee80211_check_rate_mask(link); 2996 } 2997 2998 if (params->use_cts_prot >= 0) { 2999 link->conf->use_cts_prot = params->use_cts_prot; 3000 changed |= BSS_CHANGED_ERP_CTS_PROT; 3001 } 3002 if (params->use_short_preamble >= 0) { 3003 link->conf->use_short_preamble = params->use_short_preamble; 3004 changed |= BSS_CHANGED_ERP_PREAMBLE; 3005 } 3006 3007 if (!link->conf->use_short_slot && 3008 (sband->band == NL80211_BAND_5GHZ || 3009 sband->band == NL80211_BAND_6GHZ)) { 3010 link->conf->use_short_slot = true; 3011 changed |= BSS_CHANGED_ERP_SLOT; 3012 } 3013 3014 if (params->use_short_slot_time >= 0) { 3015 link->conf->use_short_slot = params->use_short_slot_time; 3016 changed |= BSS_CHANGED_ERP_SLOT; 3017 } 3018 3019 if (params->ap_isolate >= 0) { 3020 if (params->ap_isolate) 3021 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3022 else 3023 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3024 ieee80211_check_fast_rx_iface(sdata); 3025 } 3026 3027 if (params->ht_opmode >= 0) { 3028 link->conf->ht_operation_mode = (u16)params->ht_opmode; 3029 changed |= BSS_CHANGED_HT; 3030 } 3031 3032 if (params->p2p_ctwindow >= 0) { 3033 link->conf->p2p_noa_attr.oppps_ctwindow &= 3034 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3035 link->conf->p2p_noa_attr.oppps_ctwindow |= 3036 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3037 changed |= BSS_CHANGED_P2P_PS; 3038 } 3039 3040 if (params->p2p_opp_ps > 0) { 3041 link->conf->p2p_noa_attr.oppps_ctwindow |= 3042 IEEE80211_P2P_OPPPS_ENABLE_BIT; 3043 changed |= BSS_CHANGED_P2P_PS; 3044 } else if (params->p2p_opp_ps == 0) { 3045 link->conf->p2p_noa_attr.oppps_ctwindow &= 3046 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 3047 changed |= BSS_CHANGED_P2P_PS; 3048 } 3049 3050 ieee80211_link_info_change_notify(sdata, link, changed); 3051 3052 return 0; 3053 } 3054 3055 static int ieee80211_set_txq_params(struct wiphy *wiphy, 3056 struct net_device *dev, 3057 struct ieee80211_txq_params *params) 3058 { 3059 struct ieee80211_local *local = wiphy_priv(wiphy); 3060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3061 struct ieee80211_link_data *link = 3062 ieee80211_link_or_deflink(sdata, params->link_id, true); 3063 struct ieee80211_tx_queue_params p; 3064 3065 if (!local->ops->conf_tx) 3066 return -EOPNOTSUPP; 3067 3068 if (local->hw.queues < IEEE80211_NUM_ACS) 3069 return -EOPNOTSUPP; 3070 3071 if (IS_ERR(link)) 3072 return PTR_ERR(link); 3073 3074 memset(&p, 0, sizeof(p)); 3075 p.aifs = params->aifs; 3076 p.cw_max = params->cwmax; 3077 p.cw_min = params->cwmin; 3078 p.txop = params->txop; 3079 3080 /* 3081 * Setting tx queue params disables u-apsd because it's only 3082 * called in master mode. 3083 */ 3084 p.uapsd = false; 3085 3086 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 3087 3088 link->tx_conf[params->ac] = p; 3089 if (drv_conf_tx(local, link, params->ac, &p)) { 3090 wiphy_debug(local->hw.wiphy, 3091 "failed to set TX queue parameters for AC %d\n", 3092 params->ac); 3093 return -EINVAL; 3094 } 3095 3096 ieee80211_link_info_change_notify(sdata, link, 3097 BSS_CHANGED_QOS); 3098 3099 return 0; 3100 } 3101 3102 #ifdef CONFIG_PM 3103 static int ieee80211_suspend(struct wiphy *wiphy, 3104 struct cfg80211_wowlan *wowlan) 3105 { 3106 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 3107 } 3108 3109 static int ieee80211_resume(struct wiphy *wiphy) 3110 { 3111 return __ieee80211_resume(wiphy_priv(wiphy)); 3112 } 3113 #else 3114 #define ieee80211_suspend NULL 3115 #define ieee80211_resume NULL 3116 #endif 3117 3118 static int ieee80211_scan(struct wiphy *wiphy, 3119 struct cfg80211_scan_request *req) 3120 { 3121 struct ieee80211_sub_if_data *sdata; 3122 struct ieee80211_link_data *link; 3123 struct ieee80211_channel *chan; 3124 int radio_idx; 3125 3126 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 3127 3128 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 3129 case NL80211_IFTYPE_STATION: 3130 case NL80211_IFTYPE_ADHOC: 3131 case NL80211_IFTYPE_MESH_POINT: 3132 case NL80211_IFTYPE_P2P_CLIENT: 3133 case NL80211_IFTYPE_P2P_DEVICE: 3134 break; 3135 case NL80211_IFTYPE_P2P_GO: 3136 if (sdata->local->ops->hw_scan) 3137 break; 3138 /* 3139 * FIXME: implement NoA while scanning in software, 3140 * for now fall through to allow scanning only when 3141 * beaconing hasn't been configured yet 3142 */ 3143 fallthrough; 3144 case NL80211_IFTYPE_AP: 3145 /* 3146 * If the scan has been forced (and the driver supports 3147 * forcing), don't care about being beaconing already. 3148 * This will create problems to the attached stations (e.g. all 3149 * the frames sent while scanning on other channel will be 3150 * lost) 3151 */ 3152 for_each_link_data(sdata, link) { 3153 /* if the link is not beaconing, ignore it */ 3154 if (!sdata_dereference(link->u.ap.beacon, sdata)) 3155 continue; 3156 3157 chan = link->conf->chanreq.oper.chan; 3158 radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chan); 3159 3160 if (ieee80211_is_radio_idx_in_scan_req(wiphy, req, 3161 radio_idx) && 3162 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 3163 !(req->flags & NL80211_SCAN_FLAG_AP))) 3164 return -EOPNOTSUPP; 3165 } 3166 break; 3167 case NL80211_IFTYPE_NAN: 3168 default: 3169 return -EOPNOTSUPP; 3170 } 3171 3172 return ieee80211_request_scan(sdata, req); 3173 } 3174 3175 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 3176 { 3177 ieee80211_scan_cancel(wiphy_priv(wiphy)); 3178 } 3179 3180 static int 3181 ieee80211_sched_scan_start(struct wiphy *wiphy, 3182 struct net_device *dev, 3183 struct cfg80211_sched_scan_request *req) 3184 { 3185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3186 3187 if (!sdata->local->ops->sched_scan_start) 3188 return -EOPNOTSUPP; 3189 3190 return ieee80211_request_sched_scan_start(sdata, req); 3191 } 3192 3193 static int 3194 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 3195 u64 reqid) 3196 { 3197 struct ieee80211_local *local = wiphy_priv(wiphy); 3198 3199 if (!local->ops->sched_scan_stop) 3200 return -EOPNOTSUPP; 3201 3202 return ieee80211_request_sched_scan_stop(local); 3203 } 3204 3205 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 3206 struct cfg80211_auth_request *req) 3207 { 3208 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3209 } 3210 3211 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 3212 struct cfg80211_assoc_request *req) 3213 { 3214 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3215 } 3216 3217 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 3218 struct cfg80211_deauth_request *req) 3219 { 3220 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3221 } 3222 3223 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 3224 struct cfg80211_disassoc_request *req) 3225 { 3226 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3227 } 3228 3229 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 3230 struct cfg80211_ibss_params *params) 3231 { 3232 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 3233 } 3234 3235 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 3236 { 3237 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3238 } 3239 3240 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 3241 struct ocb_setup *setup) 3242 { 3243 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 3244 } 3245 3246 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 3247 { 3248 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3249 } 3250 3251 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 3252 int rate[NUM_NL80211_BANDS]) 3253 { 3254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3255 3256 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3257 sizeof(int) * NUM_NL80211_BANDS); 3258 3259 if (ieee80211_sdata_running(sdata)) 3260 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3261 BSS_CHANGED_MCAST_RATE); 3262 3263 return 0; 3264 } 3265 3266 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx, 3267 u32 changed) 3268 { 3269 struct ieee80211_local *local = wiphy_priv(wiphy); 3270 int err; 3271 3272 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3273 ieee80211_check_fast_xmit_all(local); 3274 3275 err = drv_set_frag_threshold(local, radio_idx, 3276 wiphy->frag_threshold); 3277 3278 if (err) { 3279 ieee80211_check_fast_xmit_all(local); 3280 return err; 3281 } 3282 } 3283 3284 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3285 (changed & WIPHY_PARAM_DYN_ACK)) { 3286 s16 coverage_class; 3287 3288 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3289 wiphy->coverage_class : -1; 3290 err = drv_set_coverage_class(local, radio_idx, 3291 coverage_class); 3292 3293 if (err) 3294 return err; 3295 } 3296 3297 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3298 u32 rts_threshold; 3299 3300 if ((radio_idx == -1) || (radio_idx >= wiphy->n_radio)) 3301 rts_threshold = wiphy->rts_threshold; 3302 else 3303 rts_threshold = 3304 wiphy->radio_cfg[radio_idx].rts_threshold; 3305 3306 err = drv_set_rts_threshold(local, radio_idx, rts_threshold); 3307 3308 if (err) 3309 return err; 3310 } 3311 3312 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3313 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3314 return -EINVAL; 3315 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3316 } 3317 if (changed & WIPHY_PARAM_RETRY_LONG) { 3318 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3319 return -EINVAL; 3320 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3321 } 3322 if (changed & 3323 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3324 ieee80211_hw_config(local, radio_idx, 3325 IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3326 3327 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3328 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3329 WIPHY_PARAM_TXQ_QUANTUM)) 3330 ieee80211_txq_set_params(local, radio_idx); 3331 3332 return 0; 3333 } 3334 3335 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3336 struct wireless_dev *wdev, int radio_idx, 3337 enum nl80211_tx_power_setting type, int mbm) 3338 { 3339 struct ieee80211_local *local = wiphy_priv(wiphy); 3340 struct ieee80211_sub_if_data *sdata; 3341 enum nl80211_tx_power_setting txp_type = type; 3342 bool update_txp_type = false; 3343 bool has_monitor = false; 3344 int user_power_level; 3345 int old_power = local->user_power_level; 3346 3347 lockdep_assert_wiphy(local->hw.wiphy); 3348 3349 switch (type) { 3350 case NL80211_TX_POWER_AUTOMATIC: 3351 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3352 txp_type = NL80211_TX_POWER_LIMITED; 3353 break; 3354 case NL80211_TX_POWER_LIMITED: 3355 case NL80211_TX_POWER_FIXED: 3356 if (mbm < 0 || (mbm % 100)) 3357 return -EOPNOTSUPP; 3358 user_power_level = MBM_TO_DBM(mbm); 3359 break; 3360 default: 3361 return -EINVAL; 3362 } 3363 3364 if (wdev) { 3365 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3366 3367 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3368 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3369 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3370 return -EOPNOTSUPP; 3371 3372 sdata = wiphy_dereference(local->hw.wiphy, 3373 local->monitor_sdata); 3374 if (!sdata) 3375 return -EOPNOTSUPP; 3376 } 3377 3378 for (int link_id = 0; 3379 link_id < ARRAY_SIZE(sdata->link); 3380 link_id++) { 3381 struct ieee80211_link_data *link = 3382 wiphy_dereference(wiphy, sdata->link[link_id]); 3383 3384 if (!link) 3385 continue; 3386 3387 link->user_power_level = user_power_level; 3388 3389 if (txp_type != link->conf->txpower_type) { 3390 update_txp_type = true; 3391 link->conf->txpower_type = txp_type; 3392 } 3393 3394 ieee80211_recalc_txpower(link, update_txp_type); 3395 } 3396 return 0; 3397 } 3398 3399 local->user_power_level = user_power_level; 3400 3401 list_for_each_entry(sdata, &local->interfaces, list) { 3402 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3403 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3404 has_monitor = true; 3405 continue; 3406 } 3407 3408 for (int link_id = 0; 3409 link_id < ARRAY_SIZE(sdata->link); 3410 link_id++) { 3411 struct ieee80211_link_data *link = 3412 wiphy_dereference(wiphy, sdata->link[link_id]); 3413 3414 if (!link) 3415 continue; 3416 3417 link->user_power_level = local->user_power_level; 3418 if (txp_type != link->conf->txpower_type) 3419 update_txp_type = true; 3420 link->conf->txpower_type = txp_type; 3421 } 3422 } 3423 list_for_each_entry(sdata, &local->interfaces, list) { 3424 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3425 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3426 continue; 3427 3428 for (int link_id = 0; 3429 link_id < ARRAY_SIZE(sdata->link); 3430 link_id++) { 3431 struct ieee80211_link_data *link = 3432 wiphy_dereference(wiphy, sdata->link[link_id]); 3433 3434 if (!link) 3435 continue; 3436 3437 ieee80211_recalc_txpower(link, update_txp_type); 3438 } 3439 } 3440 3441 if (has_monitor) { 3442 sdata = wiphy_dereference(local->hw.wiphy, 3443 local->monitor_sdata); 3444 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3445 sdata->deflink.user_power_level = local->user_power_level; 3446 if (txp_type != sdata->vif.bss_conf.txpower_type) 3447 update_txp_type = true; 3448 sdata->vif.bss_conf.txpower_type = txp_type; 3449 3450 ieee80211_recalc_txpower(&sdata->deflink, 3451 update_txp_type); 3452 } 3453 } 3454 3455 if (local->emulate_chanctx && 3456 (old_power != local->user_power_level)) 3457 ieee80211_hw_conf_chan(local); 3458 3459 return 0; 3460 } 3461 3462 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3463 struct wireless_dev *wdev, 3464 int radio_idx, 3465 unsigned int link_id, 3466 int *dbm) 3467 { 3468 struct ieee80211_local *local = wiphy_priv(wiphy); 3469 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3470 struct ieee80211_link_data *link_data; 3471 3472 if (local->ops->get_txpower && 3473 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3474 return drv_get_txpower(local, sdata, link_id, dbm); 3475 3476 if (local->emulate_chanctx) { 3477 *dbm = local->hw.conf.power_level; 3478 } else { 3479 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3480 3481 if (link_data) 3482 *dbm = link_data->conf->txpower; 3483 else 3484 return -ENOLINK; 3485 } 3486 3487 /* INT_MIN indicates no power level was set yet */ 3488 if (*dbm == INT_MIN) 3489 return -EINVAL; 3490 3491 return 0; 3492 } 3493 3494 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3495 { 3496 struct ieee80211_local *local = wiphy_priv(wiphy); 3497 3498 drv_rfkill_poll(local); 3499 } 3500 3501 #ifdef CONFIG_NL80211_TESTMODE 3502 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3503 struct wireless_dev *wdev, 3504 void *data, int len) 3505 { 3506 struct ieee80211_local *local = wiphy_priv(wiphy); 3507 struct ieee80211_vif *vif = NULL; 3508 3509 if (!local->ops->testmode_cmd) 3510 return -EOPNOTSUPP; 3511 3512 if (wdev) { 3513 struct ieee80211_sub_if_data *sdata; 3514 3515 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3516 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3517 vif = &sdata->vif; 3518 } 3519 3520 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3521 } 3522 3523 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3524 struct sk_buff *skb, 3525 struct netlink_callback *cb, 3526 void *data, int len) 3527 { 3528 struct ieee80211_local *local = wiphy_priv(wiphy); 3529 3530 if (!local->ops->testmode_dump) 3531 return -EOPNOTSUPP; 3532 3533 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3534 } 3535 #endif 3536 3537 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3538 struct ieee80211_link_data *link, 3539 enum ieee80211_smps_mode smps_mode) 3540 { 3541 const u8 *ap; 3542 enum ieee80211_smps_mode old_req; 3543 int err; 3544 struct sta_info *sta; 3545 bool tdls_peer_found = false; 3546 3547 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3548 3549 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3550 return -EINVAL; 3551 3552 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3553 return 0; 3554 3555 old_req = link->u.mgd.req_smps; 3556 link->u.mgd.req_smps = smps_mode; 3557 3558 /* The driver indicated that EML is enabled for the interface, which 3559 * implies that SMPS flows towards the AP should be stopped. 3560 */ 3561 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3562 return 0; 3563 3564 if (old_req == smps_mode && 3565 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3566 return 0; 3567 3568 /* 3569 * If not associated, or current association is not an HT 3570 * association, there's no need to do anything, just store 3571 * the new value until we associate. 3572 */ 3573 if (!sdata->u.mgd.associated || 3574 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3575 return 0; 3576 3577 ap = sdata->vif.cfg.ap_addr; 3578 3579 rcu_read_lock(); 3580 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3581 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3582 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3583 continue; 3584 3585 tdls_peer_found = true; 3586 break; 3587 } 3588 rcu_read_unlock(); 3589 3590 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3591 if (tdls_peer_found || !sdata->u.mgd.powersave) 3592 smps_mode = IEEE80211_SMPS_OFF; 3593 else 3594 smps_mode = IEEE80211_SMPS_DYNAMIC; 3595 } 3596 3597 /* send SM PS frame to AP */ 3598 err = ieee80211_send_smps_action(sdata, smps_mode, 3599 ap, ap, 3600 ieee80211_vif_is_mld(&sdata->vif) ? 3601 link->link_id : -1); 3602 if (err) 3603 link->u.mgd.req_smps = old_req; 3604 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3605 ieee80211_teardown_tdls_peers(link); 3606 3607 return err; 3608 } 3609 3610 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3611 bool enabled, int timeout) 3612 { 3613 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3614 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3615 unsigned int link_id; 3616 3617 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3618 return -EOPNOTSUPP; 3619 3620 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3621 return -EOPNOTSUPP; 3622 3623 if (enabled == sdata->u.mgd.powersave && 3624 timeout == local->dynamic_ps_forced_timeout) 3625 return 0; 3626 3627 sdata->u.mgd.powersave = enabled; 3628 local->dynamic_ps_forced_timeout = timeout; 3629 3630 /* no change, but if automatic follow powersave */ 3631 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3632 struct ieee80211_link_data *link; 3633 3634 link = sdata_dereference(sdata->link[link_id], sdata); 3635 3636 if (!link) 3637 continue; 3638 __ieee80211_request_smps_mgd(sdata, link, 3639 link->u.mgd.req_smps); 3640 } 3641 3642 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3643 ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS); 3644 3645 ieee80211_recalc_ps(local); 3646 ieee80211_recalc_ps_vif(sdata); 3647 ieee80211_check_fast_rx_iface(sdata); 3648 3649 return 0; 3650 } 3651 3652 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3653 struct ieee80211_link_data *link, 3654 s32 rssi_thold, u32 rssi_hyst, 3655 s32 rssi_low, s32 rssi_high) 3656 { 3657 struct ieee80211_bss_conf *conf; 3658 3659 if (!link || !link->conf) 3660 return; 3661 3662 conf = link->conf; 3663 3664 if (rssi_thold && rssi_hyst && 3665 rssi_thold == conf->cqm_rssi_thold && 3666 rssi_hyst == conf->cqm_rssi_hyst) 3667 return; 3668 3669 conf->cqm_rssi_thold = rssi_thold; 3670 conf->cqm_rssi_hyst = rssi_hyst; 3671 conf->cqm_rssi_low = rssi_low; 3672 conf->cqm_rssi_high = rssi_high; 3673 link->u.mgd.last_cqm_event_signal = 0; 3674 3675 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3676 return; 3677 3678 if (sdata->u.mgd.associated && 3679 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3680 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3681 } 3682 3683 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3684 struct net_device *dev, 3685 s32 rssi_thold, u32 rssi_hyst) 3686 { 3687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3688 struct ieee80211_vif *vif = &sdata->vif; 3689 int link_id; 3690 3691 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3692 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3693 return -EOPNOTSUPP; 3694 3695 /* For MLD, handle CQM change on all the active links */ 3696 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3697 struct ieee80211_link_data *link = 3698 sdata_dereference(sdata->link[link_id], sdata); 3699 3700 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3701 0, 0); 3702 } 3703 3704 return 0; 3705 } 3706 3707 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3708 struct net_device *dev, 3709 s32 rssi_low, s32 rssi_high) 3710 { 3711 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3712 struct ieee80211_vif *vif = &sdata->vif; 3713 int link_id; 3714 3715 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3716 return -EOPNOTSUPP; 3717 3718 /* For MLD, handle CQM change on all the active links */ 3719 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3720 struct ieee80211_link_data *link = 3721 sdata_dereference(sdata->link[link_id], sdata); 3722 3723 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3724 rssi_low, rssi_high); 3725 } 3726 3727 return 0; 3728 } 3729 3730 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3731 struct net_device *dev, 3732 unsigned int link_id, 3733 const u8 *addr, 3734 const struct cfg80211_bitrate_mask *mask) 3735 { 3736 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3737 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3738 int i, ret; 3739 3740 if (!ieee80211_sdata_running(sdata)) 3741 return -ENETDOWN; 3742 3743 /* 3744 * If active validate the setting and reject it if it doesn't leave 3745 * at least one basic rate usable, since we really have to be able 3746 * to send something, and if we're an AP we have to be able to do 3747 * so at a basic rate so that all clients can receive it. 3748 */ 3749 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3750 sdata->vif.bss_conf.chanreq.oper.chan) { 3751 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3752 enum nl80211_band band; 3753 3754 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3755 3756 if (!(mask->control[band].legacy & basic_rates)) 3757 return -EINVAL; 3758 } 3759 3760 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3761 ret = drv_set_bitrate_mask(local, sdata, mask); 3762 if (ret) 3763 return ret; 3764 } 3765 3766 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3767 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3768 int j; 3769 3770 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3771 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3772 sizeof(mask->control[i].ht_mcs)); 3773 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3774 mask->control[i].vht_mcs, 3775 sizeof(mask->control[i].vht_mcs)); 3776 3777 sdata->rc_has_mcs_mask[i] = false; 3778 sdata->rc_has_vht_mcs_mask[i] = false; 3779 if (!sband) 3780 continue; 3781 3782 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3783 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3784 sdata->rc_has_mcs_mask[i] = true; 3785 break; 3786 } 3787 } 3788 3789 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3790 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3791 sdata->rc_has_vht_mcs_mask[i] = true; 3792 break; 3793 } 3794 } 3795 } 3796 3797 return 0; 3798 } 3799 3800 static bool ieee80211_is_scan_ongoing(struct wiphy *wiphy, 3801 struct ieee80211_local *local, 3802 struct cfg80211_chan_def *chandef) 3803 { 3804 struct cfg80211_scan_request *scan_req; 3805 int chan_radio_idx, req_radio_idx; 3806 struct ieee80211_roc_work *roc; 3807 3808 if (list_empty(&local->roc_list) && !local->scanning) 3809 return false; 3810 3811 req_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chandef->chan); 3812 3813 if (local->scanning) { 3814 scan_req = wiphy_dereference(wiphy, local->scan_req); 3815 /* 3816 * Scan is going on but info is not there. Should not happen 3817 * but if it does, let's not take risk and assume we can't use 3818 * the hw hence return true 3819 */ 3820 if (WARN_ON_ONCE(!scan_req)) 3821 return true; 3822 3823 return ieee80211_is_radio_idx_in_scan_req(wiphy, scan_req, 3824 req_radio_idx); 3825 } 3826 3827 list_for_each_entry(roc, &local->roc_list, list) { 3828 chan_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, 3829 roc->chan); 3830 if (chan_radio_idx == req_radio_idx) 3831 return true; 3832 } 3833 3834 return false; 3835 } 3836 3837 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3838 struct net_device *dev, 3839 struct cfg80211_chan_def *chandef, 3840 u32 cac_time_ms, int link_id) 3841 { 3842 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3843 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3844 struct ieee80211_local *local = sdata->local; 3845 struct ieee80211_link_data *link_data; 3846 int err; 3847 3848 lockdep_assert_wiphy(local->hw.wiphy); 3849 3850 if (ieee80211_is_scan_ongoing(wiphy, local, chandef)) 3851 return -EBUSY; 3852 3853 link_data = sdata_dereference(sdata->link[link_id], sdata); 3854 if (!link_data) 3855 return -ENOLINK; 3856 3857 /* whatever, but channel contexts should not complain about that one */ 3858 link_data->smps_mode = IEEE80211_SMPS_OFF; 3859 link_data->needed_rx_chains = local->rx_chains; 3860 3861 err = ieee80211_link_use_channel(link_data, &chanreq, 3862 IEEE80211_CHANCTX_SHARED); 3863 if (err) 3864 return err; 3865 3866 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3867 msecs_to_jiffies(cac_time_ms)); 3868 3869 return 0; 3870 } 3871 3872 static void ieee80211_end_cac(struct wiphy *wiphy, 3873 struct net_device *dev, unsigned int link_id) 3874 { 3875 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3876 struct ieee80211_local *local = sdata->local; 3877 struct ieee80211_link_data *link_data; 3878 3879 lockdep_assert_wiphy(local->hw.wiphy); 3880 3881 list_for_each_entry(sdata, &local->interfaces, list) { 3882 link_data = sdata_dereference(sdata->link[link_id], sdata); 3883 if (!link_data) 3884 continue; 3885 3886 wiphy_delayed_work_cancel(wiphy, 3887 &link_data->dfs_cac_timer_work); 3888 3889 if (sdata->wdev.links[link_id].cac_started) { 3890 ieee80211_link_release_channel(link_data); 3891 sdata->wdev.links[link_id].cac_started = false; 3892 } 3893 } 3894 } 3895 3896 static struct cfg80211_beacon_data * 3897 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3898 { 3899 struct cfg80211_beacon_data *new_beacon; 3900 u8 *pos; 3901 int len; 3902 3903 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3904 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3905 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3906 3907 if (beacon->mbssid_ies) 3908 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3909 beacon->rnr_ies, 3910 beacon->mbssid_ies->cnt); 3911 3912 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3913 if (!new_beacon) 3914 return NULL; 3915 3916 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3917 new_beacon->mbssid_ies = 3918 kzalloc(struct_size(new_beacon->mbssid_ies, 3919 elem, beacon->mbssid_ies->cnt), 3920 GFP_KERNEL); 3921 if (!new_beacon->mbssid_ies) { 3922 kfree(new_beacon); 3923 return NULL; 3924 } 3925 3926 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3927 new_beacon->rnr_ies = 3928 kzalloc(struct_size(new_beacon->rnr_ies, 3929 elem, beacon->rnr_ies->cnt), 3930 GFP_KERNEL); 3931 if (!new_beacon->rnr_ies) { 3932 kfree(new_beacon->mbssid_ies); 3933 kfree(new_beacon); 3934 return NULL; 3935 } 3936 } 3937 } 3938 3939 pos = (u8 *)(new_beacon + 1); 3940 if (beacon->head_len) { 3941 new_beacon->head_len = beacon->head_len; 3942 new_beacon->head = pos; 3943 memcpy(pos, beacon->head, beacon->head_len); 3944 pos += beacon->head_len; 3945 } 3946 if (beacon->tail_len) { 3947 new_beacon->tail_len = beacon->tail_len; 3948 new_beacon->tail = pos; 3949 memcpy(pos, beacon->tail, beacon->tail_len); 3950 pos += beacon->tail_len; 3951 } 3952 if (beacon->beacon_ies_len) { 3953 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3954 new_beacon->beacon_ies = pos; 3955 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3956 pos += beacon->beacon_ies_len; 3957 } 3958 if (beacon->proberesp_ies_len) { 3959 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3960 new_beacon->proberesp_ies = pos; 3961 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3962 pos += beacon->proberesp_ies_len; 3963 } 3964 if (beacon->assocresp_ies_len) { 3965 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3966 new_beacon->assocresp_ies = pos; 3967 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3968 pos += beacon->assocresp_ies_len; 3969 } 3970 if (beacon->probe_resp_len) { 3971 new_beacon->probe_resp_len = beacon->probe_resp_len; 3972 new_beacon->probe_resp = pos; 3973 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3974 pos += beacon->probe_resp_len; 3975 } 3976 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3977 pos += ieee80211_copy_mbssid_beacon(pos, 3978 new_beacon->mbssid_ies, 3979 beacon->mbssid_ies); 3980 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3981 pos += ieee80211_copy_rnr_beacon(pos, 3982 new_beacon->rnr_ies, 3983 beacon->rnr_ies); 3984 } 3985 3986 /* might copy -1, meaning no changes requested */ 3987 new_beacon->ftm_responder = beacon->ftm_responder; 3988 if (beacon->lci) { 3989 new_beacon->lci_len = beacon->lci_len; 3990 new_beacon->lci = pos; 3991 memcpy(pos, beacon->lci, beacon->lci_len); 3992 pos += beacon->lci_len; 3993 } 3994 if (beacon->civicloc) { 3995 new_beacon->civicloc_len = beacon->civicloc_len; 3996 new_beacon->civicloc = pos; 3997 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3998 pos += beacon->civicloc_len; 3999 } 4000 4001 return new_beacon; 4002 } 4003 4004 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 4005 { 4006 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4007 struct ieee80211_local *local = sdata->local; 4008 struct ieee80211_bss_conf *tx_bss_conf; 4009 struct ieee80211_link_data *link_data; 4010 4011 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4012 return; 4013 4014 rcu_read_lock(); 4015 4016 link_data = rcu_dereference(sdata->link[link_id]); 4017 if (WARN_ON(!link_data)) { 4018 rcu_read_unlock(); 4019 return; 4020 } 4021 4022 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf); 4023 if (tx_bss_conf == link_data->conf) { 4024 /* Trigger ieee80211_csa_finish() on the non-transmitting 4025 * interfaces when channel switch is received on 4026 * transmitting interface 4027 */ 4028 struct ieee80211_link_data *iter; 4029 4030 for_each_sdata_link_rcu(local, iter) { 4031 if (iter->sdata == sdata || 4032 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf) 4033 continue; 4034 4035 wiphy_work_queue(iter->sdata->local->hw.wiphy, 4036 &iter->csa.finalize_work); 4037 } 4038 } 4039 4040 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 4041 4042 rcu_read_unlock(); 4043 } 4044 EXPORT_SYMBOL(ieee80211_csa_finish); 4045 4046 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 4047 { 4048 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4049 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4050 struct ieee80211_local *local = sdata->local; 4051 4052 sdata_info(sdata, "channel switch failed, disconnecting\n"); 4053 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 4054 } 4055 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 4056 4057 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 4058 u64 *changed) 4059 { 4060 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4061 int err; 4062 4063 switch (sdata->vif.type) { 4064 case NL80211_IFTYPE_AP: 4065 if (!link_data->u.ap.next_beacon) 4066 return -EINVAL; 4067 4068 err = ieee80211_assign_beacon(sdata, link_data, 4069 link_data->u.ap.next_beacon, 4070 NULL, NULL, changed); 4071 ieee80211_free_next_beacon(link_data); 4072 4073 if (err < 0) 4074 return err; 4075 break; 4076 case NL80211_IFTYPE_ADHOC: 4077 err = ieee80211_ibss_finish_csa(sdata, changed); 4078 if (err < 0) 4079 return err; 4080 break; 4081 #ifdef CONFIG_MAC80211_MESH 4082 case NL80211_IFTYPE_MESH_POINT: 4083 err = ieee80211_mesh_finish_csa(sdata, changed); 4084 if (err < 0) 4085 return err; 4086 break; 4087 #endif 4088 default: 4089 WARN_ON(1); 4090 return -EINVAL; 4091 } 4092 4093 return 0; 4094 } 4095 4096 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4097 { 4098 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4099 struct ieee80211_local *local = sdata->local; 4100 struct ieee80211_bss_conf *link_conf = link_data->conf; 4101 u64 changed = 0; 4102 int err; 4103 4104 lockdep_assert_wiphy(local->hw.wiphy); 4105 4106 /* 4107 * using reservation isn't immediate as it may be deferred until later 4108 * with multi-vif. once reservation is complete it will re-schedule the 4109 * work with no reserved_chanctx so verify chandef to check if it 4110 * completed successfully 4111 */ 4112 4113 if (link_data->reserved_chanctx) { 4114 /* 4115 * with multi-vif csa driver may call ieee80211_csa_finish() 4116 * many times while waiting for other interfaces to use their 4117 * reservations 4118 */ 4119 if (link_data->reserved_ready) 4120 return 0; 4121 4122 return ieee80211_link_use_reserved_context(link_data); 4123 } 4124 4125 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 4126 &link_data->csa.chanreq.oper)) 4127 return -EINVAL; 4128 4129 link_conf->csa_active = false; 4130 4131 err = ieee80211_set_after_csa_beacon(link_data, &changed); 4132 if (err) 4133 return err; 4134 4135 ieee80211_link_info_change_notify(sdata, link_data, changed); 4136 4137 ieee80211_vif_unblock_queues_csa(sdata); 4138 4139 err = drv_post_channel_switch(link_data); 4140 if (err) 4141 return err; 4142 4143 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 4144 link_data->link_id); 4145 4146 return 0; 4147 } 4148 4149 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4150 { 4151 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4152 int link_id = -1; 4153 4154 if (__ieee80211_csa_finalize(link_data)) { 4155 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 4156 link_data->link_id); 4157 if (sdata->vif.type == NL80211_IFTYPE_AP || 4158 sdata->vif.type == NL80211_IFTYPE_P2P_GO) 4159 /* 4160 * link_id is expected only for AP/P2P_GO type 4161 * currently 4162 */ 4163 link_id = link_data->link_id; 4164 4165 cfg80211_stop_link(sdata->local->hw.wiphy, &sdata->wdev, 4166 link_id, GFP_KERNEL); 4167 } 4168 } 4169 4170 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 4171 { 4172 struct ieee80211_link_data *link = 4173 container_of(work, struct ieee80211_link_data, csa.finalize_work); 4174 struct ieee80211_sub_if_data *sdata = link->sdata; 4175 struct ieee80211_local *local = sdata->local; 4176 4177 lockdep_assert_wiphy(local->hw.wiphy); 4178 4179 /* AP might have been stopped while waiting for the lock. */ 4180 if (!link->conf->csa_active) 4181 return; 4182 4183 if (!ieee80211_sdata_running(sdata)) 4184 return; 4185 4186 ieee80211_csa_finalize(link); 4187 } 4188 4189 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 4190 struct cfg80211_csa_settings *params, 4191 u64 *changed) 4192 { 4193 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4194 struct ieee80211_csa_settings csa = {}; 4195 int err; 4196 4197 switch (sdata->vif.type) { 4198 case NL80211_IFTYPE_AP: 4199 link_data->u.ap.next_beacon = 4200 cfg80211_beacon_dup(¶ms->beacon_after); 4201 if (!link_data->u.ap.next_beacon) 4202 return -ENOMEM; 4203 4204 /* 4205 * With a count of 0, we don't have to wait for any 4206 * TBTT before switching, so complete the CSA 4207 * immediately. In theory, with a count == 1 we 4208 * should delay the switch until just before the next 4209 * TBTT, but that would complicate things so we switch 4210 * immediately too. If we would delay the switch 4211 * until the next TBTT, we would have to set the probe 4212 * response here. 4213 * 4214 * TODO: A channel switch with count <= 1 without 4215 * sending a CSA action frame is kind of useless, 4216 * because the clients won't know we're changing 4217 * channels. The action frame must be implemented 4218 * either here or in the userspace. 4219 */ 4220 if (params->count <= 1) 4221 break; 4222 4223 if ((params->n_counter_offsets_beacon > 4224 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 4225 (params->n_counter_offsets_presp > 4226 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 4227 ieee80211_free_next_beacon(link_data); 4228 return -EINVAL; 4229 } 4230 4231 csa.counter_offsets_beacon = params->counter_offsets_beacon; 4232 csa.counter_offsets_presp = params->counter_offsets_presp; 4233 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 4234 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 4235 csa.count = params->count; 4236 4237 err = ieee80211_assign_beacon(sdata, link_data, 4238 ¶ms->beacon_csa, &csa, 4239 NULL, changed); 4240 if (err < 0) { 4241 ieee80211_free_next_beacon(link_data); 4242 return err; 4243 } 4244 4245 break; 4246 case NL80211_IFTYPE_ADHOC: 4247 if (!sdata->vif.cfg.ibss_joined) 4248 return -EINVAL; 4249 4250 if (params->chandef.width != sdata->u.ibss.chandef.width) 4251 return -EINVAL; 4252 4253 switch (params->chandef.width) { 4254 case NL80211_CHAN_WIDTH_40: 4255 if (cfg80211_get_chandef_type(¶ms->chandef) != 4256 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 4257 return -EINVAL; 4258 break; 4259 case NL80211_CHAN_WIDTH_5: 4260 case NL80211_CHAN_WIDTH_10: 4261 case NL80211_CHAN_WIDTH_20_NOHT: 4262 case NL80211_CHAN_WIDTH_20: 4263 break; 4264 default: 4265 return -EINVAL; 4266 } 4267 4268 /* changes into another band are not supported */ 4269 if (sdata->u.ibss.chandef.chan->band != 4270 params->chandef.chan->band) 4271 return -EINVAL; 4272 4273 /* see comments in the NL80211_IFTYPE_AP block */ 4274 if (params->count > 1) { 4275 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 4276 if (err < 0) 4277 return err; 4278 } 4279 4280 ieee80211_send_action_csa(sdata, params); 4281 4282 break; 4283 #ifdef CONFIG_MAC80211_MESH 4284 case NL80211_IFTYPE_MESH_POINT: { 4285 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4286 4287 /* changes into another band are not supported */ 4288 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 4289 params->chandef.chan->band) 4290 return -EINVAL; 4291 4292 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 4293 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 4294 if (!ifmsh->pre_value) 4295 ifmsh->pre_value = 1; 4296 else 4297 ifmsh->pre_value++; 4298 } 4299 4300 /* see comments in the NL80211_IFTYPE_AP block */ 4301 if (params->count > 1) { 4302 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 4303 if (err < 0) { 4304 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 4305 return err; 4306 } 4307 } 4308 4309 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 4310 ieee80211_send_action_csa(sdata, params); 4311 4312 break; 4313 } 4314 #endif 4315 default: 4316 return -EOPNOTSUPP; 4317 } 4318 4319 return 0; 4320 } 4321 4322 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4323 { 4324 link->conf->color_change_active = false; 4325 4326 ieee80211_free_next_beacon(link); 4327 4328 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4329 } 4330 4331 static int 4332 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4333 struct cfg80211_csa_settings *params) 4334 { 4335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4336 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4337 struct ieee80211_local *local = sdata->local; 4338 struct ieee80211_channel_switch ch_switch = { 4339 .link_id = params->link_id, 4340 }; 4341 struct ieee80211_chanctx_conf *conf; 4342 struct ieee80211_chanctx *chanctx; 4343 struct ieee80211_bss_conf *link_conf; 4344 struct ieee80211_link_data *link_data; 4345 u64 changed = 0; 4346 u8 link_id = params->link_id; 4347 int err; 4348 4349 lockdep_assert_wiphy(local->hw.wiphy); 4350 4351 if (ieee80211_is_scan_ongoing(wiphy, local, ¶ms->chandef)) 4352 return -EBUSY; 4353 4354 if (sdata->wdev.links[link_id].cac_started) 4355 return -EBUSY; 4356 4357 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4358 return -EINVAL; 4359 4360 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4361 if (!link_data) 4362 return -ENOLINK; 4363 4364 link_conf = link_data->conf; 4365 4366 if (chanreq.oper.punctured && !link_conf->eht_support) 4367 return -EINVAL; 4368 4369 /* don't allow another channel switch if one is already active. */ 4370 if (link_conf->csa_active) 4371 return -EBUSY; 4372 4373 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4374 if (!conf) { 4375 err = -EBUSY; 4376 goto out; 4377 } 4378 4379 if (params->chandef.chan->freq_offset) { 4380 /* this may work, but is untested */ 4381 err = -EOPNOTSUPP; 4382 goto out; 4383 } 4384 4385 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 4386 ¶ms->unsol_bcast_probe_resp, 4387 link_data, link_conf, &changed); 4388 if (err) 4389 goto out; 4390 4391 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4392 4393 ch_switch.timestamp = 0; 4394 ch_switch.device_timestamp = 0; 4395 ch_switch.block_tx = params->block_tx; 4396 ch_switch.chandef = chanreq.oper; 4397 ch_switch.count = params->count; 4398 4399 err = drv_pre_channel_switch(sdata, &ch_switch); 4400 if (err) 4401 goto out; 4402 4403 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4404 chanctx->mode, 4405 params->radar_required); 4406 if (err) 4407 goto out; 4408 4409 /* if reservation is invalid then this will fail */ 4410 err = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 4411 if (err) { 4412 ieee80211_link_unreserve_chanctx(link_data); 4413 goto out; 4414 } 4415 4416 /* if there is a color change in progress, abort it */ 4417 if (link_conf->color_change_active) 4418 ieee80211_color_change_abort(link_data); 4419 4420 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4421 if (err) { 4422 ieee80211_link_unreserve_chanctx(link_data); 4423 goto out; 4424 } 4425 4426 link_data->csa.chanreq = chanreq; 4427 link_conf->csa_active = true; 4428 4429 if (params->block_tx) 4430 ieee80211_vif_block_queues_csa(sdata); 4431 4432 cfg80211_ch_switch_started_notify(sdata->dev, 4433 &link_data->csa.chanreq.oper, link_id, 4434 params->count, params->block_tx); 4435 4436 if (changed) { 4437 ieee80211_link_info_change_notify(sdata, link_data, changed); 4438 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4439 } else { 4440 /* if the beacon didn't change, we can finalize immediately */ 4441 ieee80211_csa_finalize(link_data); 4442 } 4443 4444 out: 4445 return err; 4446 } 4447 4448 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4449 struct cfg80211_csa_settings *params) 4450 { 4451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4452 struct ieee80211_local *local = sdata->local; 4453 4454 lockdep_assert_wiphy(local->hw.wiphy); 4455 4456 return __ieee80211_channel_switch(wiphy, dev, params); 4457 } 4458 4459 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4460 { 4461 lockdep_assert_wiphy(local->hw.wiphy); 4462 4463 local->roc_cookie_counter++; 4464 4465 /* wow, you wrapped 64 bits ... more likely a bug */ 4466 if (WARN_ON(local->roc_cookie_counter == 0)) 4467 local->roc_cookie_counter++; 4468 4469 return local->roc_cookie_counter; 4470 } 4471 4472 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4473 u64 *cookie, gfp_t gfp) 4474 { 4475 unsigned long spin_flags; 4476 struct sk_buff *ack_skb; 4477 int id; 4478 4479 ack_skb = skb_copy(skb, gfp); 4480 if (!ack_skb) 4481 return -ENOMEM; 4482 4483 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4484 id = idr_alloc(&local->ack_status_frames, ack_skb, 4485 1, 0x2000, GFP_ATOMIC); 4486 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4487 4488 if (id < 0) { 4489 kfree_skb(ack_skb); 4490 return -ENOMEM; 4491 } 4492 4493 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4494 IEEE80211_SKB_CB(skb)->status_data = id; 4495 4496 *cookie = ieee80211_mgmt_tx_cookie(local); 4497 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4498 4499 return 0; 4500 } 4501 4502 static void 4503 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4504 struct wireless_dev *wdev, 4505 struct mgmt_frame_regs *upd) 4506 { 4507 struct ieee80211_local *local = wiphy_priv(wiphy); 4508 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4509 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4510 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4511 bool global_change, intf_change; 4512 4513 global_change = 4514 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4515 (local->rx_mcast_action_reg != 4516 !!(upd->global_mcast_stypes & action_mask)); 4517 local->probe_req_reg = upd->global_stypes & preq_mask; 4518 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4519 4520 intf_change = (sdata->vif.probe_req_reg != 4521 !!(upd->interface_stypes & preq_mask)) || 4522 (sdata->vif.rx_mcast_action_reg != 4523 !!(upd->interface_mcast_stypes & action_mask)); 4524 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4525 sdata->vif.rx_mcast_action_reg = 4526 upd->interface_mcast_stypes & action_mask; 4527 4528 if (!local->open_count) 4529 return; 4530 4531 if (intf_change && ieee80211_sdata_running(sdata)) 4532 drv_config_iface_filter(local, sdata, 4533 sdata->vif.probe_req_reg ? 4534 FIF_PROBE_REQ : 0, 4535 FIF_PROBE_REQ); 4536 4537 if (global_change) 4538 ieee80211_configure_filter(local); 4539 } 4540 4541 static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx, 4542 u32 tx_ant, u32 rx_ant) 4543 { 4544 struct ieee80211_local *local = wiphy_priv(wiphy); 4545 int ret; 4546 4547 if (local->started) 4548 return -EOPNOTSUPP; 4549 4550 ret = drv_set_antenna(local, tx_ant, rx_ant); 4551 if (ret) 4552 return ret; 4553 4554 local->rx_chains = hweight8(rx_ant); 4555 return 0; 4556 } 4557 4558 static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx, 4559 u32 *tx_ant, u32 *rx_ant) 4560 { 4561 struct ieee80211_local *local = wiphy_priv(wiphy); 4562 4563 return drv_get_antenna(local, radio_idx, tx_ant, rx_ant); 4564 } 4565 4566 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4567 struct net_device *dev, 4568 struct cfg80211_gtk_rekey_data *data) 4569 { 4570 struct ieee80211_local *local = wiphy_priv(wiphy); 4571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4572 4573 if (!local->ops->set_rekey_data) 4574 return -EOPNOTSUPP; 4575 4576 drv_set_rekey_data(local, sdata, data); 4577 4578 return 0; 4579 } 4580 4581 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4582 const u8 *peer, u64 *cookie) 4583 { 4584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4585 struct ieee80211_local *local = sdata->local; 4586 struct ieee80211_qos_hdr *nullfunc; 4587 struct sk_buff *skb; 4588 int size = sizeof(*nullfunc); 4589 __le16 fc; 4590 bool qos; 4591 struct ieee80211_tx_info *info; 4592 struct sta_info *sta; 4593 struct ieee80211_chanctx_conf *chanctx_conf; 4594 enum nl80211_band band; 4595 int ret; 4596 4597 /* the lock is needed to assign the cookie later */ 4598 lockdep_assert_wiphy(local->hw.wiphy); 4599 4600 rcu_read_lock(); 4601 sta = sta_info_get_bss(sdata, peer); 4602 if (!sta) { 4603 ret = -ENOLINK; 4604 goto unlock; 4605 } 4606 4607 qos = sta->sta.wme; 4608 4609 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4610 if (WARN_ON(!chanctx_conf)) { 4611 ret = -EINVAL; 4612 goto unlock; 4613 } 4614 band = chanctx_conf->def.chan->band; 4615 4616 if (qos) { 4617 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4618 IEEE80211_STYPE_QOS_NULLFUNC | 4619 IEEE80211_FCTL_FROMDS); 4620 } else { 4621 size -= 2; 4622 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4623 IEEE80211_STYPE_NULLFUNC | 4624 IEEE80211_FCTL_FROMDS); 4625 } 4626 4627 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4628 if (!skb) { 4629 ret = -ENOMEM; 4630 goto unlock; 4631 } 4632 4633 skb->dev = dev; 4634 4635 skb_reserve(skb, local->hw.extra_tx_headroom); 4636 4637 nullfunc = skb_put(skb, size); 4638 nullfunc->frame_control = fc; 4639 nullfunc->duration_id = 0; 4640 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4641 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4642 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4643 nullfunc->seq_ctrl = 0; 4644 4645 info = IEEE80211_SKB_CB(skb); 4646 4647 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4648 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4649 info->band = band; 4650 4651 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4652 skb->priority = 7; 4653 if (qos) 4654 nullfunc->qos_ctrl = cpu_to_le16(7); 4655 4656 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4657 if (ret) { 4658 kfree_skb(skb); 4659 goto unlock; 4660 } 4661 4662 local_bh_disable(); 4663 ieee80211_xmit(sdata, sta, skb); 4664 local_bh_enable(); 4665 4666 ret = 0; 4667 unlock: 4668 rcu_read_unlock(); 4669 4670 return ret; 4671 } 4672 4673 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4674 struct wireless_dev *wdev, 4675 unsigned int link_id, 4676 struct cfg80211_chan_def *chandef) 4677 { 4678 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4679 struct ieee80211_local *local = wiphy_priv(wiphy); 4680 struct ieee80211_chanctx_conf *chanctx_conf; 4681 struct ieee80211_link_data *link; 4682 int ret = -ENODATA; 4683 4684 rcu_read_lock(); 4685 link = rcu_dereference(sdata->link[link_id]); 4686 if (!link) { 4687 ret = -ENOLINK; 4688 goto out; 4689 } 4690 4691 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4692 if (chanctx_conf) { 4693 *chandef = link->conf->chanreq.oper; 4694 ret = 0; 4695 } else if (local->open_count > 0 && 4696 local->open_count == local->virt_monitors && 4697 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4698 *chandef = local->monitor_chanreq.oper; 4699 ret = 0; 4700 } 4701 out: 4702 rcu_read_unlock(); 4703 4704 return ret; 4705 } 4706 4707 #ifdef CONFIG_PM 4708 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4709 { 4710 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4711 } 4712 #endif 4713 4714 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4715 struct net_device *dev, 4716 struct cfg80211_qos_map *qos_map) 4717 { 4718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4719 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4720 4721 if (qos_map) { 4722 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4723 if (!new_qos_map) 4724 return -ENOMEM; 4725 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4726 } else { 4727 /* A NULL qos_map was passed to disable QoS mapping */ 4728 new_qos_map = NULL; 4729 } 4730 4731 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4732 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4733 if (old_qos_map) 4734 kfree_rcu(old_qos_map, rcu_head); 4735 4736 return 0; 4737 } 4738 4739 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4740 struct net_device *dev, 4741 unsigned int link_id, 4742 struct cfg80211_chan_def *chandef) 4743 { 4744 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4745 struct ieee80211_link_data *link; 4746 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4747 int ret; 4748 u64 changed = 0; 4749 4750 link = sdata_dereference(sdata->link[link_id], sdata); 4751 4752 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4753 if (ret == 0) 4754 ieee80211_link_info_change_notify(sdata, link, changed); 4755 4756 return ret; 4757 } 4758 4759 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4760 u8 tsid, const u8 *peer, u8 up, 4761 u16 admitted_time) 4762 { 4763 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4764 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4765 int ac = ieee802_1d_to_ac[up]; 4766 4767 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4768 return -EOPNOTSUPP; 4769 4770 if (!(sdata->wmm_acm & BIT(up))) 4771 return -EINVAL; 4772 4773 if (ifmgd->tx_tspec[ac].admitted_time) 4774 return -EBUSY; 4775 4776 if (admitted_time) { 4777 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4778 ifmgd->tx_tspec[ac].tsid = tsid; 4779 ifmgd->tx_tspec[ac].up = up; 4780 } 4781 4782 return 0; 4783 } 4784 4785 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4786 u8 tsid, const u8 *peer) 4787 { 4788 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4789 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4790 struct ieee80211_local *local = wiphy_priv(wiphy); 4791 int ac; 4792 4793 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4794 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4795 4796 /* skip unused entries */ 4797 if (!tx_tspec->admitted_time) 4798 continue; 4799 4800 if (tx_tspec->tsid != tsid) 4801 continue; 4802 4803 /* due to this new packets will be reassigned to non-ACM ACs */ 4804 tx_tspec->up = -1; 4805 4806 /* Make sure that all packets have been sent to avoid to 4807 * restore the QoS params on packets that are still on the 4808 * queues. 4809 */ 4810 synchronize_net(); 4811 ieee80211_flush_queues(local, sdata, false); 4812 4813 /* restore the normal QoS parameters 4814 * (unconditionally to avoid races) 4815 */ 4816 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4817 tx_tspec->downgraded = false; 4818 ieee80211_sta_handle_tspec_ac_params(sdata); 4819 4820 /* finally clear all the data */ 4821 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4822 4823 return 0; 4824 } 4825 4826 return -ENOENT; 4827 } 4828 4829 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4830 u8 inst_id, 4831 enum nl80211_nan_func_term_reason reason, 4832 gfp_t gfp) 4833 { 4834 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4835 struct cfg80211_nan_func *func; 4836 u64 cookie; 4837 4838 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4839 return; 4840 4841 spin_lock_bh(&sdata->u.nan.func_lock); 4842 4843 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4844 if (WARN_ON(!func)) { 4845 spin_unlock_bh(&sdata->u.nan.func_lock); 4846 return; 4847 } 4848 4849 cookie = func->cookie; 4850 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4851 4852 spin_unlock_bh(&sdata->u.nan.func_lock); 4853 4854 cfg80211_free_nan_func(func); 4855 4856 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4857 reason, cookie, gfp); 4858 } 4859 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4860 4861 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4862 struct cfg80211_nan_match_params *match, 4863 gfp_t gfp) 4864 { 4865 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4866 struct cfg80211_nan_func *func; 4867 4868 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4869 return; 4870 4871 spin_lock_bh(&sdata->u.nan.func_lock); 4872 4873 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4874 if (WARN_ON(!func)) { 4875 spin_unlock_bh(&sdata->u.nan.func_lock); 4876 return; 4877 } 4878 match->cookie = func->cookie; 4879 4880 spin_unlock_bh(&sdata->u.nan.func_lock); 4881 4882 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4883 } 4884 EXPORT_SYMBOL(ieee80211_nan_func_match); 4885 4886 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4887 struct net_device *dev, 4888 const bool enabled) 4889 { 4890 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4891 4892 sdata->u.ap.multicast_to_unicast = enabled; 4893 4894 return 0; 4895 } 4896 4897 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4898 struct txq_info *txqi) 4899 { 4900 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4901 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4902 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4903 } 4904 4905 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4906 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4907 txqstats->backlog_packets = txqi->tin.backlog_packets; 4908 } 4909 4910 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4911 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4912 txqstats->flows = txqi->tin.flows; 4913 } 4914 4915 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4916 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4917 txqstats->drops = txqi->cstats.drop_count; 4918 } 4919 4920 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4921 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4922 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4923 } 4924 4925 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4926 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4927 txqstats->overlimit = txqi->tin.overlimit; 4928 } 4929 4930 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4931 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4932 txqstats->collisions = txqi->tin.collisions; 4933 } 4934 4935 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4936 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4937 txqstats->tx_bytes = txqi->tin.tx_bytes; 4938 } 4939 4940 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4941 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4942 txqstats->tx_packets = txqi->tin.tx_packets; 4943 } 4944 } 4945 4946 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4947 struct wireless_dev *wdev, 4948 struct cfg80211_txq_stats *txqstats) 4949 { 4950 struct ieee80211_local *local = wiphy_priv(wiphy); 4951 struct ieee80211_sub_if_data *sdata; 4952 int ret = 0; 4953 4954 spin_lock_bh(&local->fq.lock); 4955 4956 if (wdev) { 4957 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4958 if (!sdata->vif.txq) { 4959 ret = 1; 4960 goto out; 4961 } 4962 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4963 } else { 4964 /* phy stats */ 4965 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4966 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4967 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4968 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4969 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4970 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4971 txqstats->backlog_packets = local->fq.backlog; 4972 txqstats->backlog_bytes = local->fq.memory_usage; 4973 txqstats->overlimit = local->fq.overlimit; 4974 txqstats->overmemory = local->fq.overmemory; 4975 txqstats->collisions = local->fq.collisions; 4976 txqstats->max_flows = local->fq.flows_cnt; 4977 } 4978 4979 out: 4980 spin_unlock_bh(&local->fq.lock); 4981 4982 return ret; 4983 } 4984 4985 static int 4986 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4987 struct net_device *dev, 4988 struct cfg80211_ftm_responder_stats *ftm_stats) 4989 { 4990 struct ieee80211_local *local = wiphy_priv(wiphy); 4991 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4992 4993 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4994 } 4995 4996 static int 4997 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4998 struct cfg80211_pmsr_request *request) 4999 { 5000 struct ieee80211_local *local = wiphy_priv(wiphy); 5001 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 5002 5003 return drv_start_pmsr(local, sdata, request); 5004 } 5005 5006 static void 5007 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 5008 struct cfg80211_pmsr_request *request) 5009 { 5010 struct ieee80211_local *local = wiphy_priv(wiphy); 5011 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 5012 5013 return drv_abort_pmsr(local, sdata, request); 5014 } 5015 5016 static int ieee80211_set_tid_config(struct wiphy *wiphy, 5017 struct net_device *dev, 5018 struct cfg80211_tid_config *tid_conf) 5019 { 5020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5021 struct sta_info *sta; 5022 5023 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5024 5025 if (!sdata->local->ops->set_tid_config) 5026 return -EOPNOTSUPP; 5027 5028 if (!tid_conf->peer) 5029 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 5030 5031 sta = sta_info_get_bss(sdata, tid_conf->peer); 5032 if (!sta) 5033 return -ENOENT; 5034 5035 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 5036 } 5037 5038 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 5039 struct net_device *dev, 5040 const u8 *peer, u8 tids) 5041 { 5042 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5043 struct sta_info *sta; 5044 5045 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5046 5047 if (!sdata->local->ops->reset_tid_config) 5048 return -EOPNOTSUPP; 5049 5050 if (!peer) 5051 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 5052 5053 sta = sta_info_get_bss(sdata, peer); 5054 if (!sta) 5055 return -ENOENT; 5056 5057 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 5058 } 5059 5060 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 5061 struct cfg80211_sar_specs *sar) 5062 { 5063 struct ieee80211_local *local = wiphy_priv(wiphy); 5064 5065 if (!local->ops->set_sar_specs) 5066 return -EOPNOTSUPP; 5067 5068 return local->ops->set_sar_specs(&local->hw, sar); 5069 } 5070 5071 static int 5072 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 5073 u64 *changed) 5074 { 5075 struct ieee80211_sub_if_data *sdata = link->sdata; 5076 5077 switch (sdata->vif.type) { 5078 case NL80211_IFTYPE_AP: { 5079 int ret; 5080 5081 if (!link->u.ap.next_beacon) 5082 return -EINVAL; 5083 5084 ret = ieee80211_assign_beacon(sdata, link, 5085 link->u.ap.next_beacon, 5086 NULL, NULL, changed); 5087 ieee80211_free_next_beacon(link); 5088 5089 if (ret < 0) 5090 return ret; 5091 5092 break; 5093 } 5094 default: 5095 WARN_ON_ONCE(1); 5096 return -EINVAL; 5097 } 5098 5099 return 0; 5100 } 5101 5102 static int 5103 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 5104 struct cfg80211_color_change_settings *params, 5105 u64 *changed) 5106 { 5107 struct ieee80211_sub_if_data *sdata = link->sdata; 5108 struct ieee80211_color_change_settings color_change = {}; 5109 int err; 5110 5111 switch (sdata->vif.type) { 5112 case NL80211_IFTYPE_AP: 5113 link->u.ap.next_beacon = 5114 cfg80211_beacon_dup(¶ms->beacon_next); 5115 if (!link->u.ap.next_beacon) 5116 return -ENOMEM; 5117 5118 if (params->count <= 1) 5119 break; 5120 5121 color_change.counter_offset_beacon = 5122 params->counter_offset_beacon; 5123 color_change.counter_offset_presp = 5124 params->counter_offset_presp; 5125 color_change.count = params->count; 5126 5127 err = ieee80211_assign_beacon(sdata, link, 5128 ¶ms->beacon_color_change, 5129 NULL, &color_change, changed); 5130 if (err < 0) { 5131 ieee80211_free_next_beacon(link); 5132 return err; 5133 } 5134 break; 5135 default: 5136 return -EOPNOTSUPP; 5137 } 5138 5139 return 0; 5140 } 5141 5142 static void 5143 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 5144 u8 color, int enable, u64 changed) 5145 { 5146 struct ieee80211_sub_if_data *sdata = link->sdata; 5147 5148 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5149 5150 link->conf->he_bss_color.color = color; 5151 link->conf->he_bss_color.enabled = enable; 5152 changed |= BSS_CHANGED_HE_BSS_COLOR; 5153 5154 ieee80211_link_info_change_notify(sdata, link, changed); 5155 5156 if (!link->conf->nontransmitted && 5157 rcu_access_pointer(link->conf->tx_bss_conf)) { 5158 struct ieee80211_link_data *tmp; 5159 5160 for_each_sdata_link(sdata->local, tmp) { 5161 if (tmp->sdata == sdata || 5162 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf) 5163 continue; 5164 5165 tmp->conf->he_bss_color.color = color; 5166 tmp->conf->he_bss_color.enabled = enable; 5167 ieee80211_link_info_change_notify(tmp->sdata, tmp, 5168 BSS_CHANGED_HE_BSS_COLOR); 5169 } 5170 } 5171 } 5172 5173 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 5174 { 5175 struct ieee80211_sub_if_data *sdata = link->sdata; 5176 struct ieee80211_local *local = sdata->local; 5177 u64 changed = 0; 5178 int err; 5179 5180 lockdep_assert_wiphy(local->hw.wiphy); 5181 5182 link->conf->color_change_active = false; 5183 5184 err = ieee80211_set_after_color_change_beacon(link, &changed); 5185 if (err) { 5186 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 5187 return err; 5188 } 5189 5190 ieee80211_color_change_bss_config_notify(link, 5191 link->conf->color_change_color, 5192 1, changed); 5193 cfg80211_color_change_notify(sdata->dev, link->link_id); 5194 5195 return 0; 5196 } 5197 5198 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 5199 struct wiphy_work *work) 5200 { 5201 struct ieee80211_link_data *link = 5202 container_of(work, struct ieee80211_link_data, 5203 color_change_finalize_work); 5204 struct ieee80211_sub_if_data *sdata = link->sdata; 5205 struct ieee80211_bss_conf *link_conf = link->conf; 5206 struct ieee80211_local *local = sdata->local; 5207 5208 lockdep_assert_wiphy(local->hw.wiphy); 5209 5210 /* AP might have been stopped while waiting for the lock. */ 5211 if (!link_conf->color_change_active) 5212 return; 5213 5214 if (!ieee80211_sdata_running(sdata)) 5215 return; 5216 5217 ieee80211_color_change_finalize(link); 5218 } 5219 5220 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 5221 struct wiphy_work *work) 5222 { 5223 struct ieee80211_link_data *link = 5224 container_of(work, struct ieee80211_link_data, 5225 color_collision_detect_work.work); 5226 struct ieee80211_sub_if_data *sdata = link->sdata; 5227 5228 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 5229 link->link_id); 5230 } 5231 5232 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 5233 { 5234 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5235 struct ieee80211_link_data *link; 5236 5237 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5238 return; 5239 5240 rcu_read_lock(); 5241 5242 link = rcu_dereference(sdata->link[link_id]); 5243 if (WARN_ON(!link)) { 5244 rcu_read_unlock(); 5245 return; 5246 } 5247 5248 wiphy_work_queue(sdata->local->hw.wiphy, 5249 &link->color_change_finalize_work); 5250 5251 rcu_read_unlock(); 5252 } 5253 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 5254 5255 void 5256 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 5257 u64 color_bitmap, u8 link_id) 5258 { 5259 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5260 struct ieee80211_link_data *link; 5261 5262 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5263 return; 5264 5265 rcu_read_lock(); 5266 5267 link = rcu_dereference(sdata->link[link_id]); 5268 if (WARN_ON(!link)) { 5269 rcu_read_unlock(); 5270 return; 5271 } 5272 5273 if (link->conf->color_change_active || link->conf->csa_active) { 5274 rcu_read_unlock(); 5275 return; 5276 } 5277 5278 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 5279 &link->color_collision_detect_work)) { 5280 rcu_read_unlock(); 5281 return; 5282 } 5283 5284 link->color_bitmap = color_bitmap; 5285 /* queue the color collision detection event every 500 ms in order to 5286 * avoid sending too much netlink messages to userspace. 5287 */ 5288 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 5289 &link->color_collision_detect_work, 5290 msecs_to_jiffies(500)); 5291 5292 rcu_read_unlock(); 5293 } 5294 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 5295 5296 static int 5297 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 5298 struct cfg80211_color_change_settings *params) 5299 { 5300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5301 struct ieee80211_local *local = sdata->local; 5302 struct ieee80211_bss_conf *link_conf; 5303 struct ieee80211_link_data *link; 5304 u8 link_id = params->link_id; 5305 u64 changed = 0; 5306 int err; 5307 5308 lockdep_assert_wiphy(local->hw.wiphy); 5309 5310 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5311 return -EINVAL; 5312 5313 link = wiphy_dereference(wiphy, sdata->link[link_id]); 5314 if (!link) 5315 return -ENOLINK; 5316 5317 link_conf = link->conf; 5318 5319 if (link_conf->nontransmitted) 5320 return -EINVAL; 5321 5322 /* don't allow another color change if one is already active or if csa 5323 * is active 5324 */ 5325 if (link_conf->color_change_active || link_conf->csa_active) { 5326 err = -EBUSY; 5327 goto out; 5328 } 5329 5330 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 5331 ¶ms->unsol_bcast_probe_resp, 5332 link, link_conf, &changed); 5333 if (err) 5334 goto out; 5335 5336 err = ieee80211_set_color_change_beacon(link, params, &changed); 5337 if (err) 5338 goto out; 5339 5340 link_conf->color_change_active = true; 5341 link_conf->color_change_color = params->color; 5342 5343 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5344 5345 if (changed) 5346 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5347 else 5348 /* if the beacon didn't change, we can finalize immediately */ 5349 ieee80211_color_change_finalize(link); 5350 5351 out: 5352 5353 return err; 5354 } 5355 5356 static int 5357 ieee80211_set_radar_background(struct wiphy *wiphy, 5358 struct cfg80211_chan_def *chandef) 5359 { 5360 struct ieee80211_local *local = wiphy_priv(wiphy); 5361 5362 if (!local->ops->set_radar_background) 5363 return -EOPNOTSUPP; 5364 5365 return local->ops->set_radar_background(&local->hw, chandef); 5366 } 5367 5368 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5369 struct wireless_dev *wdev, 5370 unsigned int link_id) 5371 { 5372 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5373 5374 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5375 5376 if (wdev->use_4addr) 5377 return -EOPNOTSUPP; 5378 5379 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5380 } 5381 5382 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5383 struct wireless_dev *wdev, 5384 unsigned int link_id) 5385 { 5386 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5387 u16 new_links = wdev->valid_links & ~BIT(link_id); 5388 5389 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5390 5391 /* During the link teardown process, certain functions require the 5392 * link_id to remain in the valid_links bitmap. Therefore, instead 5393 * of removing the link_id from the bitmap, pass a masked value to 5394 * simulate as if link_id does not exist anymore. 5395 */ 5396 ieee80211_vif_set_links(sdata, new_links, 0); 5397 } 5398 5399 static int 5400 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5401 struct link_station_parameters *params) 5402 { 5403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5404 struct ieee80211_local *local = wiphy_priv(wiphy); 5405 struct sta_info *sta; 5406 int ret; 5407 5408 lockdep_assert_wiphy(local->hw.wiphy); 5409 5410 sta = sta_info_get_bss(sdata, params->mld_mac); 5411 if (!sta) 5412 return -ENOENT; 5413 5414 if (!sta->sta.valid_links) 5415 return -EINVAL; 5416 5417 if (sta->sta.valid_links & BIT(params->link_id)) 5418 return -EALREADY; 5419 5420 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5421 if (ret) 5422 return ret; 5423 5424 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5425 if (ret) { 5426 ieee80211_sta_free_link(sta, params->link_id); 5427 return ret; 5428 } 5429 5430 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5431 struct link_sta_info *link_sta; 5432 5433 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5434 rate_control_rate_init(link_sta); 5435 } 5436 5437 /* ieee80211_sta_activate_link frees the link upon failure */ 5438 return ieee80211_sta_activate_link(sta, params->link_id); 5439 } 5440 5441 static int 5442 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5443 struct link_station_parameters *params) 5444 { 5445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5446 struct ieee80211_local *local = wiphy_priv(wiphy); 5447 struct sta_info *sta; 5448 5449 lockdep_assert_wiphy(local->hw.wiphy); 5450 5451 sta = sta_info_get_bss(sdata, params->mld_mac); 5452 if (!sta) 5453 return -ENOENT; 5454 5455 if (!(sta->sta.valid_links & BIT(params->link_id))) 5456 return -EINVAL; 5457 5458 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5459 params); 5460 } 5461 5462 static int 5463 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5464 struct link_station_del_parameters *params) 5465 { 5466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5467 struct sta_info *sta; 5468 5469 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5470 5471 sta = sta_info_get_bss(sdata, params->mld_mac); 5472 if (!sta) 5473 return -ENOENT; 5474 5475 if (!(sta->sta.valid_links & BIT(params->link_id))) 5476 return -EINVAL; 5477 5478 /* must not create a STA without links */ 5479 if (sta->sta.valid_links == BIT(params->link_id)) 5480 return -EINVAL; 5481 5482 ieee80211_sta_remove_link(sta, params->link_id); 5483 5484 return 0; 5485 } 5486 5487 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5488 struct net_device *dev, 5489 struct cfg80211_set_hw_timestamp *hwts) 5490 { 5491 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5492 struct ieee80211_local *local = sdata->local; 5493 5494 if (!local->ops->set_hw_timestamp) 5495 return -EOPNOTSUPP; 5496 5497 if (!check_sdata_in_driver(sdata)) 5498 return -EIO; 5499 5500 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5501 } 5502 5503 static int 5504 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5505 struct cfg80211_ttlm_params *params) 5506 { 5507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5508 5509 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5510 5511 return ieee80211_req_neg_ttlm(sdata, params); 5512 } 5513 5514 static int 5515 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5516 struct cfg80211_ml_reconf_req *req) 5517 { 5518 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5519 5520 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5521 5522 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5523 } 5524 5525 static int 5526 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5527 { 5528 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5529 5530 return ieee80211_mgd_set_epcs(sdata, enable); 5531 } 5532 5533 const struct cfg80211_ops mac80211_config_ops = { 5534 .add_virtual_intf = ieee80211_add_iface, 5535 .del_virtual_intf = ieee80211_del_iface, 5536 .change_virtual_intf = ieee80211_change_iface, 5537 .start_p2p_device = ieee80211_start_p2p_device, 5538 .stop_p2p_device = ieee80211_stop_p2p_device, 5539 .add_key = ieee80211_add_key, 5540 .del_key = ieee80211_del_key, 5541 .get_key = ieee80211_get_key, 5542 .set_default_key = ieee80211_config_default_key, 5543 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5544 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5545 .start_ap = ieee80211_start_ap, 5546 .change_beacon = ieee80211_change_beacon, 5547 .stop_ap = ieee80211_stop_ap, 5548 .add_station = ieee80211_add_station, 5549 .del_station = ieee80211_del_station, 5550 .change_station = ieee80211_change_station, 5551 .get_station = ieee80211_get_station, 5552 .dump_station = ieee80211_dump_station, 5553 .dump_survey = ieee80211_dump_survey, 5554 #ifdef CONFIG_MAC80211_MESH 5555 .add_mpath = ieee80211_add_mpath, 5556 .del_mpath = ieee80211_del_mpath, 5557 .change_mpath = ieee80211_change_mpath, 5558 .get_mpath = ieee80211_get_mpath, 5559 .dump_mpath = ieee80211_dump_mpath, 5560 .get_mpp = ieee80211_get_mpp, 5561 .dump_mpp = ieee80211_dump_mpp, 5562 .update_mesh_config = ieee80211_update_mesh_config, 5563 .get_mesh_config = ieee80211_get_mesh_config, 5564 .join_mesh = ieee80211_join_mesh, 5565 .leave_mesh = ieee80211_leave_mesh, 5566 #endif 5567 .join_ocb = ieee80211_join_ocb, 5568 .leave_ocb = ieee80211_leave_ocb, 5569 .change_bss = ieee80211_change_bss, 5570 .inform_bss = ieee80211_inform_bss, 5571 .set_txq_params = ieee80211_set_txq_params, 5572 .set_monitor_channel = ieee80211_set_monitor_channel, 5573 .suspend = ieee80211_suspend, 5574 .resume = ieee80211_resume, 5575 .scan = ieee80211_scan, 5576 .abort_scan = ieee80211_abort_scan, 5577 .sched_scan_start = ieee80211_sched_scan_start, 5578 .sched_scan_stop = ieee80211_sched_scan_stop, 5579 .auth = ieee80211_auth, 5580 .assoc = ieee80211_assoc, 5581 .deauth = ieee80211_deauth, 5582 .disassoc = ieee80211_disassoc, 5583 .join_ibss = ieee80211_join_ibss, 5584 .leave_ibss = ieee80211_leave_ibss, 5585 .set_mcast_rate = ieee80211_set_mcast_rate, 5586 .set_wiphy_params = ieee80211_set_wiphy_params, 5587 .set_tx_power = ieee80211_set_tx_power, 5588 .get_tx_power = ieee80211_get_tx_power, 5589 .rfkill_poll = ieee80211_rfkill_poll, 5590 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5591 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5592 .set_power_mgmt = ieee80211_set_power_mgmt, 5593 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5594 .remain_on_channel = ieee80211_remain_on_channel, 5595 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5596 .mgmt_tx = ieee80211_mgmt_tx, 5597 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5598 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5599 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5600 .update_mgmt_frame_registrations = 5601 ieee80211_update_mgmt_frame_registrations, 5602 .set_antenna = ieee80211_set_antenna, 5603 .get_antenna = ieee80211_get_antenna, 5604 .set_rekey_data = ieee80211_set_rekey_data, 5605 .tdls_oper = ieee80211_tdls_oper, 5606 .tdls_mgmt = ieee80211_tdls_mgmt, 5607 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5608 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5609 .probe_client = ieee80211_probe_client, 5610 .set_noack_map = ieee80211_set_noack_map, 5611 #ifdef CONFIG_PM 5612 .set_wakeup = ieee80211_set_wakeup, 5613 #endif 5614 .get_channel = ieee80211_cfg_get_channel, 5615 .start_radar_detection = ieee80211_start_radar_detection, 5616 .end_cac = ieee80211_end_cac, 5617 .channel_switch = ieee80211_channel_switch, 5618 .set_qos_map = ieee80211_set_qos_map, 5619 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5620 .add_tx_ts = ieee80211_add_tx_ts, 5621 .del_tx_ts = ieee80211_del_tx_ts, 5622 .start_nan = ieee80211_start_nan, 5623 .stop_nan = ieee80211_stop_nan, 5624 .nan_change_conf = ieee80211_nan_change_conf, 5625 .add_nan_func = ieee80211_add_nan_func, 5626 .del_nan_func = ieee80211_del_nan_func, 5627 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5628 .tx_control_port = ieee80211_tx_control_port, 5629 .get_txq_stats = ieee80211_get_txq_stats, 5630 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5631 .start_pmsr = ieee80211_start_pmsr, 5632 .abort_pmsr = ieee80211_abort_pmsr, 5633 .probe_mesh_link = ieee80211_probe_mesh_link, 5634 .set_tid_config = ieee80211_set_tid_config, 5635 .reset_tid_config = ieee80211_reset_tid_config, 5636 .set_sar_specs = ieee80211_set_sar_specs, 5637 .color_change = ieee80211_color_change, 5638 .set_radar_background = ieee80211_set_radar_background, 5639 .add_intf_link = ieee80211_add_intf_link, 5640 .del_intf_link = ieee80211_del_intf_link, 5641 .add_link_station = ieee80211_add_link_station, 5642 .mod_link_station = ieee80211_mod_link_station, 5643 .del_link_station = ieee80211_del_link_station, 5644 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5645 .set_ttlm = ieee80211_set_ttlm, 5646 .get_radio_mask = ieee80211_get_radio_mask, 5647 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5648 .set_epcs = ieee80211_set_epcs, 5649 }; 5650