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 /* new or old multiple BSSID elements? */ 1349 if (params->mbssid_ies) { 1350 mbssid = params->mbssid_ies; 1351 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1352 if (params->rnr_ies) { 1353 rnr = params->rnr_ies; 1354 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1355 } 1356 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1357 mbssid->cnt); 1358 } else if (old && old->mbssid_ies) { 1359 mbssid = old->mbssid_ies; 1360 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1361 if (old && old->rnr_ies) { 1362 rnr = old->rnr_ies; 1363 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1364 } 1365 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1366 mbssid->cnt); 1367 } 1368 1369 new = kzalloc(size, GFP_KERNEL); 1370 if (!new) 1371 return -ENOMEM; 1372 1373 /* start filling the new info now */ 1374 1375 /* 1376 * pointers go into the block we allocated, 1377 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1378 */ 1379 new->head = ((u8 *) new) + sizeof(*new); 1380 new->tail = new->head + new_head_len; 1381 new->head_len = new_head_len; 1382 new->tail_len = new_tail_len; 1383 /* copy in optional mbssid_ies */ 1384 if (mbssid) { 1385 u8 *pos = new->tail + new->tail_len; 1386 1387 new->mbssid_ies = (void *)pos; 1388 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1389 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1390 mbssid); 1391 if (rnr) { 1392 new->rnr_ies = (void *)pos; 1393 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1394 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1395 } 1396 /* update bssid_indicator */ 1397 if (new->mbssid_ies->cnt && new->mbssid_ies->elem[0].len > 2) 1398 link_conf->bssid_indicator = 1399 *(new->mbssid_ies->elem[0].data + 2); 1400 else 1401 link_conf->bssid_indicator = 0; 1402 } 1403 1404 if (csa) { 1405 new->cntdwn_current_counter = csa->count; 1406 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1407 csa->n_counter_offsets_beacon * 1408 sizeof(new->cntdwn_counter_offsets[0])); 1409 } else if (cca) { 1410 new->cntdwn_current_counter = cca->count; 1411 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1412 } 1413 1414 /* copy in head */ 1415 if (params->head) 1416 memcpy(new->head, params->head, new_head_len); 1417 else 1418 memcpy(new->head, old->head, new_head_len); 1419 1420 /* copy in optional tail */ 1421 if (params->tail) 1422 memcpy(new->tail, params->tail, new_tail_len); 1423 else 1424 if (old) 1425 memcpy(new->tail, old->tail, new_tail_len); 1426 1427 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1428 params->probe_resp_len, csa, cca, link); 1429 if (err < 0) { 1430 kfree(new); 1431 return err; 1432 } 1433 if (err == 0) 1434 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1435 1436 if (params->ftm_responder != -1) { 1437 link_conf->ftm_responder = params->ftm_responder; 1438 err = ieee80211_set_ftm_responder_params(sdata, 1439 params->lci, 1440 params->lci_len, 1441 params->civicloc, 1442 params->civicloc_len, 1443 link_conf); 1444 1445 if (err < 0) { 1446 kfree(new); 1447 return err; 1448 } 1449 1450 _changed |= BSS_CHANGED_FTM_RESPONDER; 1451 } 1452 1453 rcu_assign_pointer(link->u.ap.beacon, new); 1454 sdata->u.ap.active = true; 1455 1456 if (old) 1457 kfree_rcu(old, rcu_head); 1458 1459 *changed |= _changed; 1460 return 0; 1461 } 1462 1463 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1464 { 1465 struct ieee80211_link_data *link; 1466 u8 link_id, num = 0; 1467 1468 if (sdata->vif.type != NL80211_IFTYPE_AP && 1469 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1470 return num; 1471 1472 /* non-MLO mode of operation also uses link_id 0 in sdata so it is 1473 * safe to directly proceed with the below loop 1474 */ 1475 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1476 link = sdata_dereference(sdata->link[link_id], sdata); 1477 if (!link) 1478 continue; 1479 1480 if (sdata_dereference(link->u.ap.beacon, sdata)) 1481 num++; 1482 } 1483 1484 return num; 1485 } 1486 1487 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1488 struct cfg80211_ap_settings *params) 1489 { 1490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1491 struct ieee80211_local *local = sdata->local; 1492 struct beacon_data *old; 1493 struct ieee80211_sub_if_data *vlan; 1494 u64 changed = BSS_CHANGED_BEACON_INT | 1495 BSS_CHANGED_BEACON_ENABLED | 1496 BSS_CHANGED_BEACON | 1497 BSS_CHANGED_P2P_PS | 1498 BSS_CHANGED_TXPOWER | 1499 BSS_CHANGED_TWT; 1500 int i, err; 1501 int prev_beacon_int; 1502 unsigned int link_id = params->beacon.link_id; 1503 struct ieee80211_link_data *link; 1504 struct ieee80211_bss_conf *link_conf; 1505 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1506 u64 tsf; 1507 1508 lockdep_assert_wiphy(local->hw.wiphy); 1509 1510 link = sdata_dereference(sdata->link[link_id], sdata); 1511 if (!link) 1512 return -ENOLINK; 1513 1514 link_conf = link->conf; 1515 1516 old = sdata_dereference(link->u.ap.beacon, sdata); 1517 if (old) 1518 return -EALREADY; 1519 1520 link->smps_mode = IEEE80211_SMPS_OFF; 1521 1522 link->needed_rx_chains = sdata->local->rx_chains; 1523 1524 prev_beacon_int = link_conf->beacon_int; 1525 link_conf->beacon_int = params->beacon_interval; 1526 1527 if (params->ht_cap) 1528 link_conf->ht_ldpc = 1529 params->ht_cap->cap_info & 1530 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1531 1532 if (params->vht_cap) { 1533 link_conf->vht_ldpc = 1534 params->vht_cap->vht_cap_info & 1535 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1536 link_conf->vht_su_beamformer = 1537 params->vht_cap->vht_cap_info & 1538 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1539 link_conf->vht_su_beamformee = 1540 params->vht_cap->vht_cap_info & 1541 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1542 link_conf->vht_mu_beamformer = 1543 params->vht_cap->vht_cap_info & 1544 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1545 link_conf->vht_mu_beamformee = 1546 params->vht_cap->vht_cap_info & 1547 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1548 } 1549 1550 if (params->he_cap && params->he_oper) { 1551 link_conf->he_support = true; 1552 link_conf->htc_trig_based_pkt_ext = 1553 le32_get_bits(params->he_oper->he_oper_params, 1554 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1555 link_conf->frame_time_rts_th = 1556 le32_get_bits(params->he_oper->he_oper_params, 1557 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1558 changed |= BSS_CHANGED_HE_OBSS_PD; 1559 1560 if (params->beacon.he_bss_color.enabled) 1561 changed |= BSS_CHANGED_HE_BSS_COLOR; 1562 } 1563 1564 if (params->he_cap) { 1565 link_conf->he_ldpc = 1566 params->he_cap->phy_cap_info[1] & 1567 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1568 link_conf->he_su_beamformer = 1569 params->he_cap->phy_cap_info[3] & 1570 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1571 link_conf->he_su_beamformee = 1572 params->he_cap->phy_cap_info[4] & 1573 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1574 link_conf->he_mu_beamformer = 1575 params->he_cap->phy_cap_info[4] & 1576 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1577 link_conf->he_full_ul_mumimo = 1578 params->he_cap->phy_cap_info[2] & 1579 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1580 } 1581 1582 if (params->eht_cap) { 1583 if (!link_conf->he_support) 1584 return -EOPNOTSUPP; 1585 1586 link_conf->eht_support = true; 1587 1588 link_conf->eht_su_beamformer = 1589 params->eht_cap->fixed.phy_cap_info[0] & 1590 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1591 link_conf->eht_su_beamformee = 1592 params->eht_cap->fixed.phy_cap_info[0] & 1593 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1594 link_conf->eht_mu_beamformer = 1595 params->eht_cap->fixed.phy_cap_info[7] & 1596 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1597 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1598 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1599 link_conf->eht_80mhz_full_bw_ul_mumimo = 1600 params->eht_cap->fixed.phy_cap_info[7] & 1601 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1602 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1603 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1604 link_conf->eht_disable_mcs15 = 1605 u8_get_bits(params->eht_oper->params, 1606 IEEE80211_EHT_OPER_MCS15_DISABLE); 1607 } else { 1608 link_conf->eht_su_beamformer = false; 1609 link_conf->eht_su_beamformee = false; 1610 link_conf->eht_mu_beamformer = false; 1611 } 1612 1613 if (sdata->vif.type == NL80211_IFTYPE_AP && 1614 params->mbssid_config.tx_wdev) { 1615 err = ieee80211_set_ap_mbssid_options(sdata, 1616 ¶ms->mbssid_config, 1617 link_conf); 1618 if (err) 1619 return err; 1620 } 1621 1622 err = ieee80211_link_use_channel(link, &chanreq, 1623 IEEE80211_CHANCTX_SHARED); 1624 if (!err) 1625 ieee80211_link_copy_chanctx_to_vlans(link, false); 1626 if (err) { 1627 link_conf->beacon_int = prev_beacon_int; 1628 return err; 1629 } 1630 1631 /* 1632 * Apply control port protocol, this allows us to 1633 * not encrypt dynamic WEP control frames. 1634 */ 1635 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1636 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1637 sdata->control_port_over_nl80211 = 1638 params->crypto.control_port_over_nl80211; 1639 sdata->control_port_no_preauth = 1640 params->crypto.control_port_no_preauth; 1641 1642 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1643 vlan->control_port_protocol = 1644 params->crypto.control_port_ethertype; 1645 vlan->control_port_no_encrypt = 1646 params->crypto.control_port_no_encrypt; 1647 vlan->control_port_over_nl80211 = 1648 params->crypto.control_port_over_nl80211; 1649 vlan->control_port_no_preauth = 1650 params->crypto.control_port_no_preauth; 1651 } 1652 1653 link_conf->dtim_period = params->dtim_period; 1654 link_conf->enable_beacon = true; 1655 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1656 link_conf->twt_responder = params->twt_responder; 1657 link_conf->he_obss_pd = params->he_obss_pd; 1658 link_conf->he_bss_color = params->beacon.he_bss_color; 1659 link_conf->s1g_long_beacon_period = params->s1g_long_beacon_period; 1660 sdata->vif.cfg.s1g = params->chandef.chan->band == NL80211_BAND_S1GHZ; 1661 1662 sdata->vif.cfg.ssid_len = params->ssid_len; 1663 if (params->ssid_len) 1664 memcpy(sdata->vif.cfg.ssid, params->ssid, 1665 params->ssid_len); 1666 link_conf->hidden_ssid = 1667 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1668 1669 memset(&link_conf->p2p_noa_attr, 0, 1670 sizeof(link_conf->p2p_noa_attr)); 1671 link_conf->p2p_noa_attr.oppps_ctwindow = 1672 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1673 if (params->p2p_opp_ps) 1674 link_conf->p2p_noa_attr.oppps_ctwindow |= 1675 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1676 1677 sdata->beacon_rate_set = false; 1678 if (wiphy_ext_feature_isset(local->hw.wiphy, 1679 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1680 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1681 sdata->beacon_rateidx_mask[i] = 1682 params->beacon_rate.control[i].legacy; 1683 if (sdata->beacon_rateidx_mask[i]) 1684 sdata->beacon_rate_set = true; 1685 } 1686 } 1687 1688 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1689 link_conf->beacon_tx_rate = params->beacon_rate; 1690 1691 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1692 &changed); 1693 if (err < 0) 1694 goto error; 1695 1696 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1697 link, link_conf, &changed); 1698 if (err < 0) 1699 goto error; 1700 1701 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1702 ¶ms->unsol_bcast_probe_resp, 1703 link, link_conf, &changed); 1704 if (err < 0) 1705 goto error; 1706 1707 if (sdata->vif.cfg.s1g) { 1708 err = ieee80211_set_s1g_short_beacon(sdata, link, 1709 ¶ms->s1g_short_beacon); 1710 if (err < 0) 1711 goto error; 1712 } 1713 1714 err = drv_start_ap(sdata->local, sdata, link_conf); 1715 if (err) { 1716 old = sdata_dereference(link->u.ap.beacon, sdata); 1717 1718 if (old) 1719 kfree_rcu(old, rcu_head); 1720 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1721 1722 if (ieee80211_num_beaconing_links(sdata) == 0) 1723 sdata->u.ap.active = false; 1724 1725 goto error; 1726 } 1727 1728 tsf = drv_get_tsf(local, sdata); 1729 ieee80211_recalc_dtim(sdata, tsf); 1730 1731 if (link->u.ap.s1g_short_beacon) 1732 ieee80211_recalc_sb_count(sdata, tsf); 1733 1734 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1735 ieee80211_link_info_change_notify(sdata, link, changed); 1736 1737 if (ieee80211_num_beaconing_links(sdata) <= 1) 1738 netif_carrier_on(dev); 1739 1740 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1741 netif_carrier_on(vlan->dev); 1742 1743 return 0; 1744 1745 error: 1746 ieee80211_link_release_channel(link); 1747 1748 return err; 1749 } 1750 1751 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1752 struct cfg80211_ap_update *params) 1753 1754 { 1755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1756 struct ieee80211_link_data *link; 1757 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1758 struct beacon_data *old; 1759 int err; 1760 struct ieee80211_bss_conf *link_conf; 1761 u64 changed = 0; 1762 1763 lockdep_assert_wiphy(wiphy); 1764 1765 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1766 if (!link) 1767 return -ENOLINK; 1768 1769 link_conf = link->conf; 1770 1771 /* don't allow changing the beacon while a countdown is in place - offset 1772 * of channel switch counter may change 1773 */ 1774 if (link_conf->csa_active || link_conf->color_change_active) 1775 return -EBUSY; 1776 1777 old = sdata_dereference(link->u.ap.beacon, sdata); 1778 if (!old) 1779 return -ENOENT; 1780 1781 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1782 &changed); 1783 if (err < 0) 1784 return err; 1785 1786 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1787 link, link_conf, &changed); 1788 if (err < 0) 1789 return err; 1790 1791 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1792 ¶ms->unsol_bcast_probe_resp, 1793 link, link_conf, &changed); 1794 if (err < 0) 1795 return err; 1796 1797 if (link->u.ap.s1g_short_beacon) { 1798 err = ieee80211_set_s1g_short_beacon(sdata, link, 1799 ¶ms->s1g_short_beacon); 1800 if (err < 0) 1801 return err; 1802 } 1803 1804 if (beacon->he_bss_color_valid && 1805 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1806 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1807 changed |= BSS_CHANGED_HE_BSS_COLOR; 1808 } 1809 1810 ieee80211_link_info_change_notify(sdata, link, changed); 1811 return 0; 1812 } 1813 1814 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1815 { 1816 if (!link->u.ap.next_beacon) 1817 return; 1818 1819 kfree(link->u.ap.next_beacon->mbssid_ies); 1820 kfree(link->u.ap.next_beacon->rnr_ies); 1821 kfree(link->u.ap.next_beacon); 1822 link->u.ap.next_beacon = NULL; 1823 } 1824 1825 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1826 unsigned int link_id) 1827 { 1828 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1829 struct ieee80211_sub_if_data *vlan; 1830 struct ieee80211_local *local = sdata->local; 1831 struct beacon_data *old_beacon; 1832 struct probe_resp *old_probe_resp; 1833 struct fils_discovery_data *old_fils_discovery; 1834 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1835 struct s1g_short_beacon_data *old_s1g_short_beacon; 1836 struct cfg80211_chan_def chandef; 1837 struct ieee80211_link_data *link = 1838 sdata_dereference(sdata->link[link_id], sdata); 1839 struct ieee80211_bss_conf *link_conf = link->conf; 1840 LIST_HEAD(keys); 1841 1842 lockdep_assert_wiphy(local->hw.wiphy); 1843 1844 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1845 if (!old_beacon) 1846 return -ENOENT; 1847 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1848 sdata); 1849 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1850 sdata); 1851 old_unsol_bcast_probe_resp = 1852 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1853 sdata); 1854 old_s1g_short_beacon = 1855 sdata_dereference(link->u.ap.s1g_short_beacon, sdata); 1856 1857 /* abort any running channel switch or color change */ 1858 link_conf->csa_active = false; 1859 link_conf->color_change_active = false; 1860 ieee80211_vif_unblock_queues_csa(sdata); 1861 1862 ieee80211_free_next_beacon(link); 1863 1864 /* turn off carrier for this interface and dependent VLANs */ 1865 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1866 netif_carrier_off(vlan->dev); 1867 1868 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1869 netif_carrier_off(dev); 1870 sdata->u.ap.active = false; 1871 } 1872 1873 /* remove beacon and probe response */ 1874 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1875 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1876 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1877 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1878 RCU_INIT_POINTER(link->u.ap.s1g_short_beacon, NULL); 1879 kfree_rcu(old_beacon, rcu_head); 1880 if (old_probe_resp) 1881 kfree_rcu(old_probe_resp, rcu_head); 1882 if (old_fils_discovery) 1883 kfree_rcu(old_fils_discovery, rcu_head); 1884 if (old_unsol_bcast_probe_resp) 1885 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1886 if (old_s1g_short_beacon) 1887 kfree_rcu(old_s1g_short_beacon, rcu_head); 1888 1889 kfree(link_conf->ftmr_params); 1890 link_conf->ftmr_params = NULL; 1891 1892 link_conf->bssid_index = 0; 1893 link_conf->nontransmitted = false; 1894 link_conf->ema_ap = false; 1895 link_conf->bssid_indicator = 0; 1896 link_conf->fils_discovery.min_interval = 0; 1897 link_conf->fils_discovery.max_interval = 0; 1898 link_conf->unsol_bcast_probe_resp_interval = 0; 1899 1900 __sta_info_flush(sdata, true, link_id, NULL); 1901 1902 ieee80211_remove_link_keys(link, &keys); 1903 if (!list_empty(&keys)) { 1904 synchronize_net(); 1905 ieee80211_free_key_list(local, &keys); 1906 } 1907 1908 ieee80211_stop_mbssid(sdata); 1909 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL); 1910 1911 link_conf->enable_beacon = false; 1912 sdata->beacon_rate_set = false; 1913 sdata->vif.cfg.ssid_len = 0; 1914 sdata->vif.cfg.s1g = false; 1915 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1916 ieee80211_link_info_change_notify(sdata, link, 1917 BSS_CHANGED_BEACON_ENABLED); 1918 1919 if (sdata->wdev.links[link_id].cac_started) { 1920 chandef = link_conf->chanreq.oper; 1921 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1922 cfg80211_cac_event(sdata->dev, &chandef, 1923 NL80211_RADAR_CAC_ABORTED, 1924 GFP_KERNEL, link_id); 1925 } 1926 1927 drv_stop_ap(sdata->local, sdata, link_conf); 1928 1929 /* free all potentially still buffered bcast frames */ 1930 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1931 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1932 1933 ieee80211_link_copy_chanctx_to_vlans(link, true); 1934 ieee80211_link_release_channel(link); 1935 1936 return 0; 1937 } 1938 1939 static int sta_apply_auth_flags(struct ieee80211_local *local, 1940 struct sta_info *sta, 1941 u32 mask, u32 set) 1942 { 1943 int ret; 1944 1945 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1946 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1947 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1948 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1949 if (ret) 1950 return ret; 1951 } 1952 1953 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1954 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1955 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1956 /* 1957 * When peer becomes associated, init rate control as 1958 * well. Some drivers require rate control initialized 1959 * before drv_sta_state() is called. 1960 */ 1961 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1962 rate_control_rate_init_all_links(sta); 1963 1964 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1965 if (ret) 1966 return ret; 1967 } 1968 1969 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1970 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1971 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1972 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1973 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1974 else 1975 ret = 0; 1976 if (ret) 1977 return ret; 1978 } 1979 1980 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1981 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1982 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1983 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1984 if (ret) 1985 return ret; 1986 } 1987 1988 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1989 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1990 test_sta_flag(sta, WLAN_STA_AUTH)) { 1991 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1992 if (ret) 1993 return ret; 1994 } 1995 1996 return 0; 1997 } 1998 1999 static void sta_apply_mesh_params(struct ieee80211_local *local, 2000 struct sta_info *sta, 2001 struct station_parameters *params) 2002 { 2003 #ifdef CONFIG_MAC80211_MESH 2004 struct ieee80211_sub_if_data *sdata = sta->sdata; 2005 u64 changed = 0; 2006 2007 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 2008 switch (params->plink_state) { 2009 case NL80211_PLINK_ESTAB: 2010 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 2011 changed = mesh_plink_inc_estab_count(sdata); 2012 sta->mesh->plink_state = params->plink_state; 2013 sta->mesh->aid = params->peer_aid; 2014 2015 ieee80211_mps_sta_status_update(sta); 2016 changed |= ieee80211_mps_set_sta_local_pm(sta, 2017 sdata->u.mesh.mshcfg.power_mode); 2018 2019 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 2020 /* init at low value */ 2021 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 2022 2023 break; 2024 case NL80211_PLINK_LISTEN: 2025 case NL80211_PLINK_BLOCKED: 2026 case NL80211_PLINK_OPN_SNT: 2027 case NL80211_PLINK_OPN_RCVD: 2028 case NL80211_PLINK_CNF_RCVD: 2029 case NL80211_PLINK_HOLDING: 2030 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 2031 changed = mesh_plink_dec_estab_count(sdata); 2032 sta->mesh->plink_state = params->plink_state; 2033 2034 ieee80211_mps_sta_status_update(sta); 2035 changed |= ieee80211_mps_set_sta_local_pm(sta, 2036 NL80211_MESH_POWER_UNKNOWN); 2037 break; 2038 default: 2039 /* nothing */ 2040 break; 2041 } 2042 } 2043 2044 switch (params->plink_action) { 2045 case NL80211_PLINK_ACTION_NO_ACTION: 2046 /* nothing */ 2047 break; 2048 case NL80211_PLINK_ACTION_OPEN: 2049 changed |= mesh_plink_open(sta); 2050 break; 2051 case NL80211_PLINK_ACTION_BLOCK: 2052 changed |= mesh_plink_block(sta); 2053 break; 2054 } 2055 2056 if (params->local_pm) 2057 changed |= ieee80211_mps_set_sta_local_pm(sta, 2058 params->local_pm); 2059 2060 ieee80211_mbss_info_change_notify(sdata, changed); 2061 #endif 2062 } 2063 2064 enum sta_link_apply_mode { 2065 STA_LINK_MODE_NEW, 2066 STA_LINK_MODE_STA_MODIFY, 2067 STA_LINK_MODE_LINK_MODIFY, 2068 }; 2069 2070 static int sta_link_apply_parameters(struct ieee80211_local *local, 2071 struct sta_info *sta, 2072 enum sta_link_apply_mode mode, 2073 struct link_station_parameters *params) 2074 { 2075 struct ieee80211_supported_band *sband; 2076 struct ieee80211_sub_if_data *sdata = sta->sdata; 2077 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 2078 struct ieee80211_link_data *link = 2079 sdata_dereference(sdata->link[link_id], sdata); 2080 struct link_sta_info *link_sta = 2081 rcu_dereference_protected(sta->link[link_id], 2082 lockdep_is_held(&local->hw.wiphy->mtx)); 2083 bool changes = params->link_mac || 2084 params->txpwr_set || 2085 params->supported_rates_len || 2086 params->ht_capa || 2087 params->vht_capa || 2088 params->he_capa || 2089 params->eht_capa || 2090 params->s1g_capa || 2091 params->opmode_notif_used; 2092 2093 switch (mode) { 2094 case STA_LINK_MODE_NEW: 2095 if (!params->link_mac) 2096 return -EINVAL; 2097 break; 2098 case STA_LINK_MODE_LINK_MODIFY: 2099 break; 2100 case STA_LINK_MODE_STA_MODIFY: 2101 if (params->link_id >= 0) 2102 break; 2103 if (!changes) 2104 return 0; 2105 break; 2106 } 2107 2108 if (!link || !link_sta) 2109 return -EINVAL; 2110 2111 sband = ieee80211_get_link_sband(link); 2112 if (!sband) 2113 return -EINVAL; 2114 2115 if (params->link_mac) { 2116 if (mode == STA_LINK_MODE_NEW) { 2117 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 2118 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 2119 } else if (!ether_addr_equal(link_sta->addr, 2120 params->link_mac)) { 2121 return -EINVAL; 2122 } 2123 } 2124 2125 if (params->txpwr_set) { 2126 int ret; 2127 2128 link_sta->pub->txpwr.type = params->txpwr.type; 2129 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 2130 link_sta->pub->txpwr.power = params->txpwr.power; 2131 ret = drv_sta_set_txpwr(local, sdata, sta); 2132 if (ret) 2133 return ret; 2134 } 2135 2136 if (params->supported_rates && 2137 params->supported_rates_len && 2138 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2139 sband, params->supported_rates, 2140 params->supported_rates_len, 2141 &link_sta->pub->supp_rates[sband->band])) 2142 return -EINVAL; 2143 2144 if (params->ht_capa) 2145 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 2146 params->ht_capa, link_sta); 2147 2148 /* VHT can override some HT caps such as the A-MSDU max length */ 2149 if (params->vht_capa) 2150 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 2151 params->vht_capa, NULL, 2152 link_sta); 2153 2154 if (params->he_capa) 2155 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 2156 (void *)params->he_capa, 2157 params->he_capa_len, 2158 (void *)params->he_6ghz_capa, 2159 link_sta); 2160 2161 if (params->he_capa && params->eht_capa) 2162 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 2163 (u8 *)params->he_capa, 2164 params->he_capa_len, 2165 params->eht_capa, 2166 params->eht_capa_len, 2167 link_sta); 2168 2169 if (params->s1g_capa) 2170 ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa, 2171 link_sta); 2172 2173 ieee80211_sta_init_nss(link_sta); 2174 2175 if (params->opmode_notif_used) { 2176 enum nl80211_chan_width width = link->conf->chanreq.oper.width; 2177 2178 switch (width) { 2179 case NL80211_CHAN_WIDTH_20: 2180 case NL80211_CHAN_WIDTH_40: 2181 case NL80211_CHAN_WIDTH_80: 2182 case NL80211_CHAN_WIDTH_160: 2183 case NL80211_CHAN_WIDTH_80P80: 2184 case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */ 2185 break; 2186 default: 2187 return -EINVAL; 2188 } 2189 2190 /* returned value is only needed for rc update, but the 2191 * rc isn't initialized here yet, so ignore it 2192 */ 2193 __ieee80211_vht_handle_opmode(sdata, link_sta, 2194 params->opmode_notif, 2195 sband->band); 2196 } 2197 2198 return 0; 2199 } 2200 2201 static int sta_apply_parameters(struct ieee80211_local *local, 2202 struct sta_info *sta, 2203 struct station_parameters *params) 2204 { 2205 struct ieee80211_sub_if_data *sdata = sta->sdata; 2206 u32 mask, set; 2207 int ret = 0; 2208 2209 mask = params->sta_flags_mask; 2210 set = params->sta_flags_set; 2211 2212 if (ieee80211_vif_is_mesh(&sdata->vif)) { 2213 /* 2214 * In mesh mode, ASSOCIATED isn't part of the nl80211 2215 * API but must follow AUTHENTICATED for driver state. 2216 */ 2217 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2218 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2219 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 2220 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 2221 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2222 /* 2223 * TDLS -- everything follows authorized, but 2224 * only becoming authorized is possible, not 2225 * going back 2226 */ 2227 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2228 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2229 BIT(NL80211_STA_FLAG_ASSOCIATED); 2230 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 2231 BIT(NL80211_STA_FLAG_ASSOCIATED); 2232 } 2233 } 2234 2235 if (mask & BIT(NL80211_STA_FLAG_WME) && 2236 local->hw.queues >= IEEE80211_NUM_ACS) 2237 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 2238 2239 /* auth flags will be set later for TDLS, 2240 * and for unassociated stations that move to associated */ 2241 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2242 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 2243 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 2244 ret = sta_apply_auth_flags(local, sta, mask, set); 2245 if (ret) 2246 return ret; 2247 } 2248 2249 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 2250 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 2251 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2252 else 2253 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 2254 } 2255 2256 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 2257 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 2258 if (set & BIT(NL80211_STA_FLAG_MFP)) 2259 set_sta_flag(sta, WLAN_STA_MFP); 2260 else 2261 clear_sta_flag(sta, WLAN_STA_MFP); 2262 } 2263 2264 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 2265 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2266 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 2267 else 2268 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 2269 } 2270 2271 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 2272 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2273 2274 /* mark TDLS channel switch support, if the AP allows it */ 2275 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2276 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2277 params->ext_capab_len >= 4 && 2278 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2279 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2280 2281 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2282 !sdata->u.mgd.tdls_wider_bw_prohibited && 2283 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2284 params->ext_capab_len >= 8 && 2285 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2286 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2287 2288 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2289 sta->sta.uapsd_queues = params->uapsd_queues; 2290 sta->sta.max_sp = params->max_sp; 2291 } 2292 2293 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2294 params->ext_capab_len); 2295 2296 /* 2297 * cfg80211 validates this (1-2007) and allows setting the AID 2298 * only when creating a new station entry. For S1G APs, the current 2299 * implementation supports a maximum of 1600 AIDs. 2300 */ 2301 if (params->aid) { 2302 if (sdata->vif.cfg.s1g && 2303 params->aid > IEEE80211_MAX_SUPPORTED_S1G_AID) 2304 return -EINVAL; 2305 2306 sta->sta.aid = params->aid; 2307 } 2308 2309 /* 2310 * Some of the following updates would be racy if called on an 2311 * existing station, via ieee80211_change_station(). However, 2312 * all such changes are rejected by cfg80211 except for updates 2313 * changing the supported rates on an existing but not yet used 2314 * TDLS peer. 2315 */ 2316 2317 if (params->listen_interval >= 0) 2318 sta->listen_interval = params->listen_interval; 2319 2320 if (params->eml_cap_present) 2321 sta->sta.eml_cap = params->eml_cap; 2322 2323 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2324 ¶ms->link_sta_params); 2325 if (ret) 2326 return ret; 2327 2328 if (params->support_p2p_ps >= 0) 2329 sta->sta.support_p2p_ps = params->support_p2p_ps; 2330 2331 if (ieee80211_vif_is_mesh(&sdata->vif)) 2332 sta_apply_mesh_params(local, sta, params); 2333 2334 if (params->airtime_weight) 2335 sta->airtime_weight = params->airtime_weight; 2336 2337 /* set the STA state after all sta info from usermode has been set */ 2338 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2339 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2340 ret = sta_apply_auth_flags(local, sta, mask, set); 2341 if (ret) 2342 return ret; 2343 } 2344 2345 /* Mark the STA as MLO if MLD MAC address is available */ 2346 if (params->link_sta_params.mld_mac) 2347 sta->sta.mlo = true; 2348 2349 return 0; 2350 } 2351 2352 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2353 const u8 *mac, 2354 struct station_parameters *params) 2355 { 2356 struct ieee80211_local *local = wiphy_priv(wiphy); 2357 struct sta_info *sta; 2358 struct ieee80211_sub_if_data *sdata; 2359 int err; 2360 2361 lockdep_assert_wiphy(local->hw.wiphy); 2362 2363 if (params->vlan) { 2364 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2365 2366 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2367 sdata->vif.type != NL80211_IFTYPE_AP) 2368 return -EINVAL; 2369 } else 2370 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2371 2372 if (ether_addr_equal(mac, sdata->vif.addr)) 2373 return -EINVAL; 2374 2375 if (!is_valid_ether_addr(mac)) 2376 return -EINVAL; 2377 2378 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2379 sdata->vif.type == NL80211_IFTYPE_STATION && 2380 !sdata->u.mgd.associated) 2381 return -EINVAL; 2382 2383 /* 2384 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2385 * but we need to have a link_mac in that case as well, so use the 2386 * STA's MAC address in that case. 2387 */ 2388 if (params->link_sta_params.link_id >= 0) 2389 sta = sta_info_alloc_with_link(sdata, mac, 2390 params->link_sta_params.link_id, 2391 params->link_sta_params.link_mac ?: mac, 2392 GFP_KERNEL); 2393 else 2394 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2395 2396 if (!sta) 2397 return -ENOMEM; 2398 2399 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2400 sta->sta.tdls = true; 2401 2402 /* Though the mutex is not needed here (since the station is not 2403 * visible yet), sta_apply_parameters (and inner functions) require 2404 * the mutex due to other paths. 2405 */ 2406 err = sta_apply_parameters(local, sta, params); 2407 if (err) { 2408 sta_info_free(local, sta); 2409 return err; 2410 } 2411 2412 /* 2413 * for TDLS and for unassociated station, rate control should be 2414 * initialized only when rates are known and station is marked 2415 * authorized/associated 2416 */ 2417 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2418 test_sta_flag(sta, WLAN_STA_ASSOC)) 2419 rate_control_rate_init_all_links(sta); 2420 2421 return sta_info_insert(sta); 2422 } 2423 2424 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2425 struct station_del_parameters *params) 2426 { 2427 struct ieee80211_sub_if_data *sdata; 2428 2429 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2430 2431 if (params->mac) 2432 return sta_info_destroy_addr_bss(sdata, params->mac); 2433 2434 sta_info_flush(sdata, params->link_id); 2435 return 0; 2436 } 2437 2438 static int ieee80211_change_station(struct wiphy *wiphy, 2439 struct net_device *dev, const u8 *mac, 2440 struct station_parameters *params) 2441 { 2442 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2443 struct ieee80211_local *local = wiphy_priv(wiphy); 2444 struct sta_info *sta; 2445 struct ieee80211_sub_if_data *vlansdata; 2446 enum cfg80211_station_type statype; 2447 int err; 2448 2449 lockdep_assert_wiphy(local->hw.wiphy); 2450 2451 sta = sta_info_get_bss(sdata, mac); 2452 if (!sta) 2453 return -ENOENT; 2454 2455 switch (sdata->vif.type) { 2456 case NL80211_IFTYPE_MESH_POINT: 2457 if (sdata->u.mesh.user_mpm) 2458 statype = CFG80211_STA_MESH_PEER_USER; 2459 else 2460 statype = CFG80211_STA_MESH_PEER_KERNEL; 2461 break; 2462 case NL80211_IFTYPE_ADHOC: 2463 statype = CFG80211_STA_IBSS; 2464 break; 2465 case NL80211_IFTYPE_STATION: 2466 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2467 statype = CFG80211_STA_AP_STA; 2468 break; 2469 } 2470 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2471 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2472 else 2473 statype = CFG80211_STA_TDLS_PEER_SETUP; 2474 break; 2475 case NL80211_IFTYPE_AP: 2476 case NL80211_IFTYPE_AP_VLAN: 2477 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2478 statype = CFG80211_STA_AP_CLIENT; 2479 else 2480 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2481 break; 2482 default: 2483 return -EOPNOTSUPP; 2484 } 2485 2486 err = cfg80211_check_station_change(wiphy, params, statype); 2487 if (err) 2488 return err; 2489 2490 if (params->vlan && params->vlan != sta->sdata->dev) { 2491 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2492 2493 if (params->vlan->ieee80211_ptr->use_4addr) { 2494 if (vlansdata->u.vlan.sta) 2495 return -EBUSY; 2496 2497 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2498 __ieee80211_check_fast_rx_iface(vlansdata); 2499 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2500 } 2501 2502 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2503 sta->sdata->u.vlan.sta) 2504 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2505 2506 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2507 ieee80211_vif_dec_num_mcast(sta->sdata); 2508 2509 sta->sdata = vlansdata; 2510 ieee80211_check_fast_rx(sta); 2511 ieee80211_check_fast_xmit(sta); 2512 2513 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2514 ieee80211_vif_inc_num_mcast(sta->sdata); 2515 cfg80211_send_layer2_update(sta->sdata->dev, 2516 sta->sta.addr); 2517 } 2518 } 2519 2520 err = sta_apply_parameters(local, sta, params); 2521 if (err) 2522 return err; 2523 2524 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2525 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2526 ieee80211_recalc_ps(local); 2527 ieee80211_recalc_ps_vif(sdata); 2528 } 2529 2530 return 0; 2531 } 2532 2533 #ifdef CONFIG_MAC80211_MESH 2534 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2535 const u8 *dst, const u8 *next_hop) 2536 { 2537 struct ieee80211_sub_if_data *sdata; 2538 struct mesh_path *mpath; 2539 struct sta_info *sta; 2540 2541 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2542 2543 rcu_read_lock(); 2544 sta = sta_info_get(sdata, next_hop); 2545 if (!sta) { 2546 rcu_read_unlock(); 2547 return -ENOENT; 2548 } 2549 2550 mpath = mesh_path_add(sdata, dst); 2551 if (IS_ERR(mpath)) { 2552 rcu_read_unlock(); 2553 return PTR_ERR(mpath); 2554 } 2555 2556 mesh_path_fix_nexthop(mpath, sta); 2557 2558 rcu_read_unlock(); 2559 return 0; 2560 } 2561 2562 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2563 const u8 *dst) 2564 { 2565 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2566 2567 if (dst) 2568 return mesh_path_del(sdata, dst); 2569 2570 mesh_path_flush_by_iface(sdata); 2571 return 0; 2572 } 2573 2574 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2575 const u8 *dst, const u8 *next_hop) 2576 { 2577 struct ieee80211_sub_if_data *sdata; 2578 struct mesh_path *mpath; 2579 struct sta_info *sta; 2580 2581 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2582 2583 rcu_read_lock(); 2584 2585 sta = sta_info_get(sdata, next_hop); 2586 if (!sta) { 2587 rcu_read_unlock(); 2588 return -ENOENT; 2589 } 2590 2591 mpath = mesh_path_lookup(sdata, dst); 2592 if (!mpath) { 2593 rcu_read_unlock(); 2594 return -ENOENT; 2595 } 2596 2597 mesh_path_fix_nexthop(mpath, sta); 2598 2599 rcu_read_unlock(); 2600 return 0; 2601 } 2602 2603 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2604 struct mpath_info *pinfo) 2605 { 2606 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2607 2608 if (next_hop_sta) 2609 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2610 else 2611 eth_zero_addr(next_hop); 2612 2613 memset(pinfo, 0, sizeof(*pinfo)); 2614 2615 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2616 2617 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2618 MPATH_INFO_SN | 2619 MPATH_INFO_METRIC | 2620 MPATH_INFO_EXPTIME | 2621 MPATH_INFO_DISCOVERY_TIMEOUT | 2622 MPATH_INFO_DISCOVERY_RETRIES | 2623 MPATH_INFO_FLAGS | 2624 MPATH_INFO_HOP_COUNT | 2625 MPATH_INFO_PATH_CHANGE; 2626 2627 pinfo->frame_qlen = mpath->frame_queue.qlen; 2628 pinfo->sn = mpath->sn; 2629 pinfo->metric = mpath->metric; 2630 if (time_before(jiffies, mpath->exp_time)) 2631 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2632 pinfo->discovery_timeout = 2633 jiffies_to_msecs(mpath->discovery_timeout); 2634 pinfo->discovery_retries = mpath->discovery_retries; 2635 if (mpath->flags & MESH_PATH_ACTIVE) 2636 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2637 if (mpath->flags & MESH_PATH_RESOLVING) 2638 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2639 if (mpath->flags & MESH_PATH_SN_VALID) 2640 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2641 if (mpath->flags & MESH_PATH_FIXED) 2642 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2643 if (mpath->flags & MESH_PATH_RESOLVED) 2644 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2645 pinfo->hop_count = mpath->hop_count; 2646 pinfo->path_change_count = mpath->path_change_count; 2647 } 2648 2649 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2650 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2651 2652 { 2653 struct ieee80211_sub_if_data *sdata; 2654 struct mesh_path *mpath; 2655 2656 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2657 2658 rcu_read_lock(); 2659 mpath = mesh_path_lookup(sdata, dst); 2660 if (!mpath) { 2661 rcu_read_unlock(); 2662 return -ENOENT; 2663 } 2664 memcpy(dst, mpath->dst, ETH_ALEN); 2665 mpath_set_pinfo(mpath, next_hop, pinfo); 2666 rcu_read_unlock(); 2667 return 0; 2668 } 2669 2670 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2671 int idx, u8 *dst, u8 *next_hop, 2672 struct mpath_info *pinfo) 2673 { 2674 struct ieee80211_sub_if_data *sdata; 2675 struct mesh_path *mpath; 2676 2677 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2678 2679 rcu_read_lock(); 2680 mpath = mesh_path_lookup_by_idx(sdata, idx); 2681 if (!mpath) { 2682 rcu_read_unlock(); 2683 return -ENOENT; 2684 } 2685 memcpy(dst, mpath->dst, ETH_ALEN); 2686 mpath_set_pinfo(mpath, next_hop, pinfo); 2687 rcu_read_unlock(); 2688 return 0; 2689 } 2690 2691 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2692 struct mpath_info *pinfo) 2693 { 2694 memset(pinfo, 0, sizeof(*pinfo)); 2695 memcpy(mpp, mpath->mpp, ETH_ALEN); 2696 2697 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2698 } 2699 2700 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2701 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2702 2703 { 2704 struct ieee80211_sub_if_data *sdata; 2705 struct mesh_path *mpath; 2706 2707 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2708 2709 rcu_read_lock(); 2710 mpath = mpp_path_lookup(sdata, dst); 2711 if (!mpath) { 2712 rcu_read_unlock(); 2713 return -ENOENT; 2714 } 2715 memcpy(dst, mpath->dst, ETH_ALEN); 2716 mpp_set_pinfo(mpath, mpp, pinfo); 2717 rcu_read_unlock(); 2718 return 0; 2719 } 2720 2721 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2722 int idx, u8 *dst, u8 *mpp, 2723 struct mpath_info *pinfo) 2724 { 2725 struct ieee80211_sub_if_data *sdata; 2726 struct mesh_path *mpath; 2727 2728 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2729 2730 rcu_read_lock(); 2731 mpath = mpp_path_lookup_by_idx(sdata, idx); 2732 if (!mpath) { 2733 rcu_read_unlock(); 2734 return -ENOENT; 2735 } 2736 memcpy(dst, mpath->dst, ETH_ALEN); 2737 mpp_set_pinfo(mpath, mpp, pinfo); 2738 rcu_read_unlock(); 2739 return 0; 2740 } 2741 2742 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2743 struct net_device *dev, 2744 struct mesh_config *conf) 2745 { 2746 struct ieee80211_sub_if_data *sdata; 2747 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2748 2749 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2750 return 0; 2751 } 2752 2753 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2754 { 2755 return (mask >> (parm-1)) & 0x1; 2756 } 2757 2758 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2759 const struct mesh_setup *setup) 2760 { 2761 u8 *new_ie; 2762 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2763 struct ieee80211_sub_if_data, u.mesh); 2764 int i; 2765 2766 /* allocate information elements */ 2767 new_ie = NULL; 2768 2769 if (setup->ie_len) { 2770 new_ie = kmemdup(setup->ie, setup->ie_len, 2771 GFP_KERNEL); 2772 if (!new_ie) 2773 return -ENOMEM; 2774 } 2775 ifmsh->ie_len = setup->ie_len; 2776 ifmsh->ie = new_ie; 2777 2778 /* now copy the rest of the setup parameters */ 2779 ifmsh->mesh_id_len = setup->mesh_id_len; 2780 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2781 ifmsh->mesh_sp_id = setup->sync_method; 2782 ifmsh->mesh_pp_id = setup->path_sel_proto; 2783 ifmsh->mesh_pm_id = setup->path_metric; 2784 ifmsh->user_mpm = setup->user_mpm; 2785 ifmsh->mesh_auth_id = setup->auth_id; 2786 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2787 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2788 if (setup->is_authenticated) 2789 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2790 if (setup->is_secure) 2791 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2792 2793 /* mcast rate setting in Mesh Node */ 2794 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2795 sizeof(setup->mcast_rate)); 2796 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2797 2798 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2799 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2800 2801 sdata->beacon_rate_set = false; 2802 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2803 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2804 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2805 sdata->beacon_rateidx_mask[i] = 2806 setup->beacon_rate.control[i].legacy; 2807 if (sdata->beacon_rateidx_mask[i]) 2808 sdata->beacon_rate_set = true; 2809 } 2810 } 2811 2812 return 0; 2813 } 2814 2815 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2816 struct net_device *dev, u32 mask, 2817 const struct mesh_config *nconf) 2818 { 2819 struct mesh_config *conf; 2820 struct ieee80211_sub_if_data *sdata; 2821 struct ieee80211_if_mesh *ifmsh; 2822 2823 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2824 ifmsh = &sdata->u.mesh; 2825 2826 /* Set the config options which we are interested in setting */ 2827 conf = &(sdata->u.mesh.mshcfg); 2828 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2829 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2830 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2831 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2832 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2833 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2834 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2835 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2836 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2837 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2838 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2839 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2840 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2841 conf->element_ttl = nconf->element_ttl; 2842 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2843 if (ifmsh->user_mpm) 2844 return -EBUSY; 2845 conf->auto_open_plinks = nconf->auto_open_plinks; 2846 } 2847 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2848 conf->dot11MeshNbrOffsetMaxNeighbor = 2849 nconf->dot11MeshNbrOffsetMaxNeighbor; 2850 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2851 conf->dot11MeshHWMPmaxPREQretries = 2852 nconf->dot11MeshHWMPmaxPREQretries; 2853 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2854 conf->path_refresh_time = nconf->path_refresh_time; 2855 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2856 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2857 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2858 conf->dot11MeshHWMPactivePathTimeout = 2859 nconf->dot11MeshHWMPactivePathTimeout; 2860 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2861 conf->dot11MeshHWMPpreqMinInterval = 2862 nconf->dot11MeshHWMPpreqMinInterval; 2863 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2864 conf->dot11MeshHWMPperrMinInterval = 2865 nconf->dot11MeshHWMPperrMinInterval; 2866 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2867 mask)) 2868 conf->dot11MeshHWMPnetDiameterTraversalTime = 2869 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2870 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2871 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2872 ieee80211_mesh_root_setup(ifmsh); 2873 } 2874 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2875 /* our current gate announcement implementation rides on root 2876 * announcements, so require this ifmsh to also be a root node 2877 * */ 2878 if (nconf->dot11MeshGateAnnouncementProtocol && 2879 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2880 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2881 ieee80211_mesh_root_setup(ifmsh); 2882 } 2883 conf->dot11MeshGateAnnouncementProtocol = 2884 nconf->dot11MeshGateAnnouncementProtocol; 2885 } 2886 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2887 conf->dot11MeshHWMPRannInterval = 2888 nconf->dot11MeshHWMPRannInterval; 2889 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2890 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2891 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2892 /* our RSSI threshold implementation is supported only for 2893 * devices that report signal in dBm. 2894 */ 2895 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2896 return -EOPNOTSUPP; 2897 conf->rssi_threshold = nconf->rssi_threshold; 2898 } 2899 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2900 conf->ht_opmode = nconf->ht_opmode; 2901 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2902 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2903 BSS_CHANGED_HT); 2904 } 2905 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2906 conf->dot11MeshHWMPactivePathToRootTimeout = 2907 nconf->dot11MeshHWMPactivePathToRootTimeout; 2908 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2909 conf->dot11MeshHWMProotInterval = 2910 nconf->dot11MeshHWMProotInterval; 2911 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2912 conf->dot11MeshHWMPconfirmationInterval = 2913 nconf->dot11MeshHWMPconfirmationInterval; 2914 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2915 conf->power_mode = nconf->power_mode; 2916 ieee80211_mps_local_status_update(sdata); 2917 } 2918 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2919 conf->dot11MeshAwakeWindowDuration = 2920 nconf->dot11MeshAwakeWindowDuration; 2921 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2922 conf->plink_timeout = nconf->plink_timeout; 2923 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2924 conf->dot11MeshConnectedToMeshGate = 2925 nconf->dot11MeshConnectedToMeshGate; 2926 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2927 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2928 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2929 conf->dot11MeshConnectedToAuthServer = 2930 nconf->dot11MeshConnectedToAuthServer; 2931 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2932 return 0; 2933 } 2934 2935 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2936 const struct mesh_config *conf, 2937 const struct mesh_setup *setup) 2938 { 2939 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2940 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2941 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2942 int err; 2943 2944 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2945 2946 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2947 err = copy_mesh_setup(ifmsh, setup); 2948 if (err) 2949 return err; 2950 2951 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2952 2953 /* can mesh use other SMPS modes? */ 2954 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2955 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2956 2957 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2958 IEEE80211_CHANCTX_SHARED); 2959 if (err) 2960 return err; 2961 2962 return ieee80211_start_mesh(sdata); 2963 } 2964 2965 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2966 { 2967 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2968 2969 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2970 2971 ieee80211_stop_mesh(sdata); 2972 ieee80211_link_release_channel(&sdata->deflink); 2973 kfree(sdata->u.mesh.ie); 2974 2975 return 0; 2976 } 2977 #endif 2978 2979 static int ieee80211_change_bss(struct wiphy *wiphy, 2980 struct net_device *dev, 2981 struct bss_parameters *params) 2982 { 2983 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2984 struct ieee80211_link_data *link; 2985 struct ieee80211_supported_band *sband; 2986 u64 changed = 0; 2987 2988 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2989 if (IS_ERR(link)) 2990 return PTR_ERR(link); 2991 2992 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2993 return -ENOENT; 2994 2995 sband = ieee80211_get_link_sband(link); 2996 if (!sband) 2997 return -EINVAL; 2998 2999 if (params->basic_rates) { 3000 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 3001 wiphy->bands[sband->band], 3002 params->basic_rates, 3003 params->basic_rates_len, 3004 &link->conf->basic_rates)) 3005 return -EINVAL; 3006 changed |= BSS_CHANGED_BASIC_RATES; 3007 ieee80211_check_rate_mask(link); 3008 } 3009 3010 if (params->use_cts_prot >= 0) { 3011 link->conf->use_cts_prot = params->use_cts_prot; 3012 changed |= BSS_CHANGED_ERP_CTS_PROT; 3013 } 3014 if (params->use_short_preamble >= 0) { 3015 link->conf->use_short_preamble = params->use_short_preamble; 3016 changed |= BSS_CHANGED_ERP_PREAMBLE; 3017 } 3018 3019 if (!link->conf->use_short_slot && 3020 (sband->band == NL80211_BAND_5GHZ || 3021 sband->band == NL80211_BAND_6GHZ)) { 3022 link->conf->use_short_slot = true; 3023 changed |= BSS_CHANGED_ERP_SLOT; 3024 } 3025 3026 if (params->use_short_slot_time >= 0) { 3027 link->conf->use_short_slot = params->use_short_slot_time; 3028 changed |= BSS_CHANGED_ERP_SLOT; 3029 } 3030 3031 if (params->ap_isolate >= 0) { 3032 if (params->ap_isolate) 3033 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3034 else 3035 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 3036 ieee80211_check_fast_rx_iface(sdata); 3037 } 3038 3039 if (params->ht_opmode >= 0) { 3040 link->conf->ht_operation_mode = (u16)params->ht_opmode; 3041 changed |= BSS_CHANGED_HT; 3042 } 3043 3044 if (params->p2p_ctwindow >= 0) { 3045 link->conf->p2p_noa_attr.oppps_ctwindow &= 3046 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3047 link->conf->p2p_noa_attr.oppps_ctwindow |= 3048 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 3049 changed |= BSS_CHANGED_P2P_PS; 3050 } 3051 3052 if (params->p2p_opp_ps > 0) { 3053 link->conf->p2p_noa_attr.oppps_ctwindow |= 3054 IEEE80211_P2P_OPPPS_ENABLE_BIT; 3055 changed |= BSS_CHANGED_P2P_PS; 3056 } else if (params->p2p_opp_ps == 0) { 3057 link->conf->p2p_noa_attr.oppps_ctwindow &= 3058 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 3059 changed |= BSS_CHANGED_P2P_PS; 3060 } 3061 3062 ieee80211_link_info_change_notify(sdata, link, changed); 3063 3064 return 0; 3065 } 3066 3067 static int ieee80211_set_txq_params(struct wiphy *wiphy, 3068 struct net_device *dev, 3069 struct ieee80211_txq_params *params) 3070 { 3071 struct ieee80211_local *local = wiphy_priv(wiphy); 3072 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3073 struct ieee80211_link_data *link = 3074 ieee80211_link_or_deflink(sdata, params->link_id, true); 3075 struct ieee80211_tx_queue_params p; 3076 3077 if (!local->ops->conf_tx) 3078 return -EOPNOTSUPP; 3079 3080 if (local->hw.queues < IEEE80211_NUM_ACS) 3081 return -EOPNOTSUPP; 3082 3083 if (IS_ERR(link)) 3084 return PTR_ERR(link); 3085 3086 memset(&p, 0, sizeof(p)); 3087 p.aifs = params->aifs; 3088 p.cw_max = params->cwmax; 3089 p.cw_min = params->cwmin; 3090 p.txop = params->txop; 3091 3092 /* 3093 * Setting tx queue params disables u-apsd because it's only 3094 * called in master mode. 3095 */ 3096 p.uapsd = false; 3097 3098 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 3099 3100 link->tx_conf[params->ac] = p; 3101 if (drv_conf_tx(local, link, params->ac, &p)) { 3102 wiphy_debug(local->hw.wiphy, 3103 "failed to set TX queue parameters for AC %d\n", 3104 params->ac); 3105 return -EINVAL; 3106 } 3107 3108 ieee80211_link_info_change_notify(sdata, link, 3109 BSS_CHANGED_QOS); 3110 3111 return 0; 3112 } 3113 3114 #ifdef CONFIG_PM 3115 static int ieee80211_suspend(struct wiphy *wiphy, 3116 struct cfg80211_wowlan *wowlan) 3117 { 3118 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 3119 } 3120 3121 static int ieee80211_resume(struct wiphy *wiphy) 3122 { 3123 return __ieee80211_resume(wiphy_priv(wiphy)); 3124 } 3125 #else 3126 #define ieee80211_suspend NULL 3127 #define ieee80211_resume NULL 3128 #endif 3129 3130 static int ieee80211_scan(struct wiphy *wiphy, 3131 struct cfg80211_scan_request *req) 3132 { 3133 struct ieee80211_sub_if_data *sdata; 3134 struct ieee80211_link_data *link; 3135 struct ieee80211_channel *chan; 3136 int radio_idx; 3137 3138 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 3139 3140 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 3141 case NL80211_IFTYPE_STATION: 3142 case NL80211_IFTYPE_ADHOC: 3143 case NL80211_IFTYPE_MESH_POINT: 3144 case NL80211_IFTYPE_P2P_CLIENT: 3145 case NL80211_IFTYPE_P2P_DEVICE: 3146 break; 3147 case NL80211_IFTYPE_P2P_GO: 3148 if (sdata->local->ops->hw_scan) 3149 break; 3150 /* 3151 * FIXME: implement NoA while scanning in software, 3152 * for now fall through to allow scanning only when 3153 * beaconing hasn't been configured yet 3154 */ 3155 fallthrough; 3156 case NL80211_IFTYPE_AP: 3157 /* 3158 * If the scan has been forced (and the driver supports 3159 * forcing), don't care about being beaconing already. 3160 * This will create problems to the attached stations (e.g. all 3161 * the frames sent while scanning on other channel will be 3162 * lost) 3163 */ 3164 for_each_link_data(sdata, link) { 3165 /* if the link is not beaconing, ignore it */ 3166 if (!sdata_dereference(link->u.ap.beacon, sdata)) 3167 continue; 3168 3169 chan = link->conf->chanreq.oper.chan; 3170 radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chan); 3171 3172 if (ieee80211_is_radio_idx_in_scan_req(wiphy, req, 3173 radio_idx) && 3174 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 3175 !(req->flags & NL80211_SCAN_FLAG_AP))) 3176 return -EOPNOTSUPP; 3177 } 3178 break; 3179 case NL80211_IFTYPE_NAN: 3180 default: 3181 return -EOPNOTSUPP; 3182 } 3183 3184 return ieee80211_request_scan(sdata, req); 3185 } 3186 3187 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 3188 { 3189 ieee80211_scan_cancel(wiphy_priv(wiphy)); 3190 } 3191 3192 static int 3193 ieee80211_sched_scan_start(struct wiphy *wiphy, 3194 struct net_device *dev, 3195 struct cfg80211_sched_scan_request *req) 3196 { 3197 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3198 3199 if (!sdata->local->ops->sched_scan_start) 3200 return -EOPNOTSUPP; 3201 3202 return ieee80211_request_sched_scan_start(sdata, req); 3203 } 3204 3205 static int 3206 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 3207 u64 reqid) 3208 { 3209 struct ieee80211_local *local = wiphy_priv(wiphy); 3210 3211 if (!local->ops->sched_scan_stop) 3212 return -EOPNOTSUPP; 3213 3214 return ieee80211_request_sched_scan_stop(local); 3215 } 3216 3217 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 3218 struct cfg80211_auth_request *req) 3219 { 3220 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3221 } 3222 3223 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 3224 struct cfg80211_assoc_request *req) 3225 { 3226 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3227 } 3228 3229 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 3230 struct cfg80211_deauth_request *req) 3231 { 3232 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 3233 } 3234 3235 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 3236 struct cfg80211_disassoc_request *req) 3237 { 3238 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 3239 } 3240 3241 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 3242 struct cfg80211_ibss_params *params) 3243 { 3244 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 3245 } 3246 3247 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 3248 { 3249 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3250 } 3251 3252 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 3253 struct ocb_setup *setup) 3254 { 3255 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 3256 } 3257 3258 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 3259 { 3260 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 3261 } 3262 3263 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 3264 int rate[NUM_NL80211_BANDS]) 3265 { 3266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3267 3268 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 3269 sizeof(int) * NUM_NL80211_BANDS); 3270 3271 if (ieee80211_sdata_running(sdata)) 3272 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3273 BSS_CHANGED_MCAST_RATE); 3274 3275 return 0; 3276 } 3277 3278 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx, 3279 u32 changed) 3280 { 3281 struct ieee80211_local *local = wiphy_priv(wiphy); 3282 int err; 3283 3284 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 3285 ieee80211_check_fast_xmit_all(local); 3286 3287 err = drv_set_frag_threshold(local, radio_idx, 3288 wiphy->frag_threshold); 3289 3290 if (err) { 3291 ieee80211_check_fast_xmit_all(local); 3292 return err; 3293 } 3294 } 3295 3296 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3297 (changed & WIPHY_PARAM_DYN_ACK)) { 3298 s16 coverage_class; 3299 3300 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3301 wiphy->coverage_class : -1; 3302 err = drv_set_coverage_class(local, radio_idx, 3303 coverage_class); 3304 3305 if (err) 3306 return err; 3307 } 3308 3309 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3310 u32 rts_threshold; 3311 3312 if ((radio_idx == -1) || (radio_idx >= wiphy->n_radio)) 3313 rts_threshold = wiphy->rts_threshold; 3314 else 3315 rts_threshold = 3316 wiphy->radio_cfg[radio_idx].rts_threshold; 3317 3318 err = drv_set_rts_threshold(local, radio_idx, rts_threshold); 3319 3320 if (err) 3321 return err; 3322 } 3323 3324 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3325 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3326 return -EINVAL; 3327 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3328 } 3329 if (changed & WIPHY_PARAM_RETRY_LONG) { 3330 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3331 return -EINVAL; 3332 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3333 } 3334 if (changed & 3335 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3336 ieee80211_hw_config(local, radio_idx, 3337 IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3338 3339 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3340 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3341 WIPHY_PARAM_TXQ_QUANTUM)) 3342 ieee80211_txq_set_params(local, radio_idx); 3343 3344 return 0; 3345 } 3346 3347 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3348 struct wireless_dev *wdev, int radio_idx, 3349 enum nl80211_tx_power_setting type, int mbm) 3350 { 3351 struct ieee80211_local *local = wiphy_priv(wiphy); 3352 struct ieee80211_sub_if_data *sdata; 3353 enum nl80211_tx_power_setting txp_type = type; 3354 bool update_txp_type = false; 3355 bool has_monitor = false; 3356 int user_power_level; 3357 int old_power = local->user_power_level; 3358 3359 lockdep_assert_wiphy(local->hw.wiphy); 3360 3361 switch (type) { 3362 case NL80211_TX_POWER_AUTOMATIC: 3363 user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3364 txp_type = NL80211_TX_POWER_LIMITED; 3365 break; 3366 case NL80211_TX_POWER_LIMITED: 3367 case NL80211_TX_POWER_FIXED: 3368 if (mbm < 0 || (mbm % 100)) 3369 return -EOPNOTSUPP; 3370 user_power_level = MBM_TO_DBM(mbm); 3371 break; 3372 default: 3373 return -EINVAL; 3374 } 3375 3376 if (wdev) { 3377 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3378 3379 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3380 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3381 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3382 return -EOPNOTSUPP; 3383 3384 sdata = wiphy_dereference(local->hw.wiphy, 3385 local->monitor_sdata); 3386 if (!sdata) 3387 return -EOPNOTSUPP; 3388 } 3389 3390 for (int link_id = 0; 3391 link_id < ARRAY_SIZE(sdata->link); 3392 link_id++) { 3393 struct ieee80211_link_data *link = 3394 wiphy_dereference(wiphy, sdata->link[link_id]); 3395 3396 if (!link) 3397 continue; 3398 3399 link->user_power_level = user_power_level; 3400 3401 if (txp_type != link->conf->txpower_type) { 3402 update_txp_type = true; 3403 link->conf->txpower_type = txp_type; 3404 } 3405 3406 ieee80211_recalc_txpower(link, update_txp_type); 3407 } 3408 return 0; 3409 } 3410 3411 local->user_power_level = user_power_level; 3412 3413 list_for_each_entry(sdata, &local->interfaces, list) { 3414 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3415 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) { 3416 has_monitor = true; 3417 continue; 3418 } 3419 3420 for (int link_id = 0; 3421 link_id < ARRAY_SIZE(sdata->link); 3422 link_id++) { 3423 struct ieee80211_link_data *link = 3424 wiphy_dereference(wiphy, sdata->link[link_id]); 3425 3426 if (!link) 3427 continue; 3428 3429 link->user_power_level = local->user_power_level; 3430 if (txp_type != link->conf->txpower_type) 3431 update_txp_type = true; 3432 link->conf->txpower_type = txp_type; 3433 } 3434 } 3435 list_for_each_entry(sdata, &local->interfaces, list) { 3436 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && 3437 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) 3438 continue; 3439 3440 for (int link_id = 0; 3441 link_id < ARRAY_SIZE(sdata->link); 3442 link_id++) { 3443 struct ieee80211_link_data *link = 3444 wiphy_dereference(wiphy, sdata->link[link_id]); 3445 3446 if (!link) 3447 continue; 3448 3449 ieee80211_recalc_txpower(link, update_txp_type); 3450 } 3451 } 3452 3453 if (has_monitor) { 3454 sdata = wiphy_dereference(local->hw.wiphy, 3455 local->monitor_sdata); 3456 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3457 sdata->deflink.user_power_level = local->user_power_level; 3458 if (txp_type != sdata->vif.bss_conf.txpower_type) 3459 update_txp_type = true; 3460 sdata->vif.bss_conf.txpower_type = txp_type; 3461 3462 ieee80211_recalc_txpower(&sdata->deflink, 3463 update_txp_type); 3464 } 3465 } 3466 3467 if (local->emulate_chanctx && 3468 (old_power != local->user_power_level)) 3469 ieee80211_hw_conf_chan(local); 3470 3471 return 0; 3472 } 3473 3474 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3475 struct wireless_dev *wdev, 3476 int radio_idx, 3477 unsigned int link_id, 3478 int *dbm) 3479 { 3480 struct ieee80211_local *local = wiphy_priv(wiphy); 3481 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3482 struct ieee80211_link_data *link_data; 3483 3484 if (local->ops->get_txpower && 3485 (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) 3486 return drv_get_txpower(local, sdata, link_id, dbm); 3487 3488 if (local->emulate_chanctx) { 3489 *dbm = local->hw.conf.power_level; 3490 } else { 3491 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3492 3493 if (link_data) 3494 *dbm = link_data->conf->txpower; 3495 else 3496 return -ENOLINK; 3497 } 3498 3499 /* INT_MIN indicates no power level was set yet */ 3500 if (*dbm == INT_MIN) 3501 return -EINVAL; 3502 3503 return 0; 3504 } 3505 3506 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3507 { 3508 struct ieee80211_local *local = wiphy_priv(wiphy); 3509 3510 drv_rfkill_poll(local); 3511 } 3512 3513 #ifdef CONFIG_NL80211_TESTMODE 3514 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3515 struct wireless_dev *wdev, 3516 void *data, int len) 3517 { 3518 struct ieee80211_local *local = wiphy_priv(wiphy); 3519 struct ieee80211_vif *vif = NULL; 3520 3521 if (!local->ops->testmode_cmd) 3522 return -EOPNOTSUPP; 3523 3524 if (wdev) { 3525 struct ieee80211_sub_if_data *sdata; 3526 3527 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3528 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3529 vif = &sdata->vif; 3530 } 3531 3532 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3533 } 3534 3535 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3536 struct sk_buff *skb, 3537 struct netlink_callback *cb, 3538 void *data, int len) 3539 { 3540 struct ieee80211_local *local = wiphy_priv(wiphy); 3541 3542 if (!local->ops->testmode_dump) 3543 return -EOPNOTSUPP; 3544 3545 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3546 } 3547 #endif 3548 3549 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3550 struct ieee80211_link_data *link, 3551 enum ieee80211_smps_mode smps_mode) 3552 { 3553 const u8 *ap; 3554 enum ieee80211_smps_mode old_req; 3555 int err; 3556 struct sta_info *sta; 3557 bool tdls_peer_found = false; 3558 3559 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3560 3561 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3562 return -EINVAL; 3563 3564 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3565 return 0; 3566 3567 old_req = link->u.mgd.req_smps; 3568 link->u.mgd.req_smps = smps_mode; 3569 3570 /* The driver indicated that EML is enabled for the interface, which 3571 * implies that SMPS flows towards the AP should be stopped. 3572 */ 3573 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3574 return 0; 3575 3576 if (old_req == smps_mode && 3577 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3578 return 0; 3579 3580 /* 3581 * If not associated, or current association is not an HT 3582 * association, there's no need to do anything, just store 3583 * the new value until we associate. 3584 */ 3585 if (!sdata->u.mgd.associated || 3586 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3587 return 0; 3588 3589 ap = sdata->vif.cfg.ap_addr; 3590 3591 rcu_read_lock(); 3592 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3593 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3594 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3595 continue; 3596 3597 tdls_peer_found = true; 3598 break; 3599 } 3600 rcu_read_unlock(); 3601 3602 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3603 if (tdls_peer_found || !sdata->u.mgd.powersave) 3604 smps_mode = IEEE80211_SMPS_OFF; 3605 else 3606 smps_mode = IEEE80211_SMPS_DYNAMIC; 3607 } 3608 3609 /* send SM PS frame to AP */ 3610 err = ieee80211_send_smps_action(sdata, smps_mode, 3611 ap, ap, 3612 ieee80211_vif_is_mld(&sdata->vif) ? 3613 link->link_id : -1); 3614 if (err) 3615 link->u.mgd.req_smps = old_req; 3616 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3617 ieee80211_teardown_tdls_peers(link); 3618 3619 return err; 3620 } 3621 3622 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3623 bool enabled, int timeout) 3624 { 3625 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3626 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3627 unsigned int link_id; 3628 3629 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3630 return -EOPNOTSUPP; 3631 3632 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3633 return -EOPNOTSUPP; 3634 3635 if (enabled == sdata->u.mgd.powersave && 3636 timeout == local->dynamic_ps_forced_timeout) 3637 return 0; 3638 3639 sdata->u.mgd.powersave = enabled; 3640 local->dynamic_ps_forced_timeout = timeout; 3641 3642 /* no change, but if automatic follow powersave */ 3643 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3644 struct ieee80211_link_data *link; 3645 3646 link = sdata_dereference(sdata->link[link_id], sdata); 3647 3648 if (!link) 3649 continue; 3650 __ieee80211_request_smps_mgd(sdata, link, 3651 link->u.mgd.req_smps); 3652 } 3653 3654 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3655 ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS); 3656 3657 ieee80211_recalc_ps(local); 3658 ieee80211_recalc_ps_vif(sdata); 3659 ieee80211_check_fast_rx_iface(sdata); 3660 3661 return 0; 3662 } 3663 3664 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3665 struct ieee80211_link_data *link, 3666 s32 rssi_thold, u32 rssi_hyst, 3667 s32 rssi_low, s32 rssi_high) 3668 { 3669 struct ieee80211_bss_conf *conf; 3670 3671 if (!link || !link->conf) 3672 return; 3673 3674 conf = link->conf; 3675 3676 if (rssi_thold && rssi_hyst && 3677 rssi_thold == conf->cqm_rssi_thold && 3678 rssi_hyst == conf->cqm_rssi_hyst) 3679 return; 3680 3681 conf->cqm_rssi_thold = rssi_thold; 3682 conf->cqm_rssi_hyst = rssi_hyst; 3683 conf->cqm_rssi_low = rssi_low; 3684 conf->cqm_rssi_high = rssi_high; 3685 link->u.mgd.last_cqm_event_signal = 0; 3686 3687 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3688 return; 3689 3690 if (sdata->u.mgd.associated && 3691 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3692 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3693 } 3694 3695 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3696 struct net_device *dev, 3697 s32 rssi_thold, u32 rssi_hyst) 3698 { 3699 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3700 struct ieee80211_vif *vif = &sdata->vif; 3701 int link_id; 3702 3703 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3704 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3705 return -EOPNOTSUPP; 3706 3707 /* For MLD, handle CQM change on all the active links */ 3708 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3709 struct ieee80211_link_data *link = 3710 sdata_dereference(sdata->link[link_id], sdata); 3711 3712 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3713 0, 0); 3714 } 3715 3716 return 0; 3717 } 3718 3719 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3720 struct net_device *dev, 3721 s32 rssi_low, s32 rssi_high) 3722 { 3723 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3724 struct ieee80211_vif *vif = &sdata->vif; 3725 int link_id; 3726 3727 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3728 return -EOPNOTSUPP; 3729 3730 /* For MLD, handle CQM change on all the active links */ 3731 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3732 struct ieee80211_link_data *link = 3733 sdata_dereference(sdata->link[link_id], sdata); 3734 3735 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3736 rssi_low, rssi_high); 3737 } 3738 3739 return 0; 3740 } 3741 3742 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3743 struct net_device *dev, 3744 unsigned int link_id, 3745 const u8 *addr, 3746 const struct cfg80211_bitrate_mask *mask) 3747 { 3748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3749 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3750 int i, ret; 3751 3752 if (!ieee80211_sdata_running(sdata)) 3753 return -ENETDOWN; 3754 3755 /* 3756 * If active validate the setting and reject it if it doesn't leave 3757 * at least one basic rate usable, since we really have to be able 3758 * to send something, and if we're an AP we have to be able to do 3759 * so at a basic rate so that all clients can receive it. 3760 */ 3761 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3762 sdata->vif.bss_conf.chanreq.oper.chan) { 3763 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3764 enum nl80211_band band; 3765 3766 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3767 3768 if (!(mask->control[band].legacy & basic_rates)) 3769 return -EINVAL; 3770 } 3771 3772 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3773 ret = drv_set_bitrate_mask(local, sdata, mask); 3774 if (ret) 3775 return ret; 3776 } 3777 3778 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3779 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3780 int j; 3781 3782 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3783 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3784 sizeof(mask->control[i].ht_mcs)); 3785 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3786 mask->control[i].vht_mcs, 3787 sizeof(mask->control[i].vht_mcs)); 3788 3789 sdata->rc_has_mcs_mask[i] = false; 3790 sdata->rc_has_vht_mcs_mask[i] = false; 3791 if (!sband) 3792 continue; 3793 3794 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3795 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3796 sdata->rc_has_mcs_mask[i] = true; 3797 break; 3798 } 3799 } 3800 3801 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3802 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3803 sdata->rc_has_vht_mcs_mask[i] = true; 3804 break; 3805 } 3806 } 3807 } 3808 3809 return 0; 3810 } 3811 3812 static bool ieee80211_is_scan_ongoing(struct wiphy *wiphy, 3813 struct ieee80211_local *local, 3814 struct cfg80211_chan_def *chandef) 3815 { 3816 struct cfg80211_scan_request *scan_req; 3817 int chan_radio_idx, req_radio_idx; 3818 struct ieee80211_roc_work *roc; 3819 3820 if (list_empty(&local->roc_list) && !local->scanning) 3821 return false; 3822 3823 req_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chandef->chan); 3824 3825 if (local->scanning) { 3826 scan_req = wiphy_dereference(wiphy, local->scan_req); 3827 /* 3828 * Scan is going on but info is not there. Should not happen 3829 * but if it does, let's not take risk and assume we can't use 3830 * the hw hence return true 3831 */ 3832 if (WARN_ON_ONCE(!scan_req)) 3833 return true; 3834 3835 return ieee80211_is_radio_idx_in_scan_req(wiphy, scan_req, 3836 req_radio_idx); 3837 } 3838 3839 list_for_each_entry(roc, &local->roc_list, list) { 3840 chan_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, 3841 roc->chan); 3842 if (chan_radio_idx == req_radio_idx) 3843 return true; 3844 } 3845 3846 return false; 3847 } 3848 3849 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3850 struct net_device *dev, 3851 struct cfg80211_chan_def *chandef, 3852 u32 cac_time_ms, int link_id) 3853 { 3854 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3855 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3856 struct ieee80211_local *local = sdata->local; 3857 struct ieee80211_link_data *link_data; 3858 int err; 3859 3860 lockdep_assert_wiphy(local->hw.wiphy); 3861 3862 if (ieee80211_is_scan_ongoing(wiphy, local, chandef)) 3863 return -EBUSY; 3864 3865 link_data = sdata_dereference(sdata->link[link_id], sdata); 3866 if (!link_data) 3867 return -ENOLINK; 3868 3869 /* whatever, but channel contexts should not complain about that one */ 3870 link_data->smps_mode = IEEE80211_SMPS_OFF; 3871 link_data->needed_rx_chains = local->rx_chains; 3872 3873 err = ieee80211_link_use_channel(link_data, &chanreq, 3874 IEEE80211_CHANCTX_SHARED); 3875 if (err) 3876 return err; 3877 3878 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work, 3879 msecs_to_jiffies(cac_time_ms)); 3880 3881 return 0; 3882 } 3883 3884 static void ieee80211_end_cac(struct wiphy *wiphy, 3885 struct net_device *dev, unsigned int link_id) 3886 { 3887 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3888 struct ieee80211_local *local = sdata->local; 3889 struct ieee80211_link_data *link_data; 3890 3891 lockdep_assert_wiphy(local->hw.wiphy); 3892 3893 list_for_each_entry(sdata, &local->interfaces, list) { 3894 link_data = sdata_dereference(sdata->link[link_id], sdata); 3895 if (!link_data) 3896 continue; 3897 3898 wiphy_delayed_work_cancel(wiphy, 3899 &link_data->dfs_cac_timer_work); 3900 3901 if (sdata->wdev.links[link_id].cac_started) { 3902 ieee80211_link_release_channel(link_data); 3903 sdata->wdev.links[link_id].cac_started = false; 3904 } 3905 } 3906 } 3907 3908 static struct cfg80211_beacon_data * 3909 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3910 { 3911 struct cfg80211_beacon_data *new_beacon; 3912 u8 *pos; 3913 int len; 3914 3915 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3916 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3917 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3918 3919 if (beacon->mbssid_ies) 3920 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3921 beacon->rnr_ies, 3922 beacon->mbssid_ies->cnt); 3923 3924 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3925 if (!new_beacon) 3926 return NULL; 3927 3928 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3929 new_beacon->mbssid_ies = 3930 kzalloc(struct_size(new_beacon->mbssid_ies, 3931 elem, beacon->mbssid_ies->cnt), 3932 GFP_KERNEL); 3933 if (!new_beacon->mbssid_ies) { 3934 kfree(new_beacon); 3935 return NULL; 3936 } 3937 3938 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3939 new_beacon->rnr_ies = 3940 kzalloc(struct_size(new_beacon->rnr_ies, 3941 elem, beacon->rnr_ies->cnt), 3942 GFP_KERNEL); 3943 if (!new_beacon->rnr_ies) { 3944 kfree(new_beacon->mbssid_ies); 3945 kfree(new_beacon); 3946 return NULL; 3947 } 3948 } 3949 } 3950 3951 pos = (u8 *)(new_beacon + 1); 3952 if (beacon->head_len) { 3953 new_beacon->head_len = beacon->head_len; 3954 new_beacon->head = pos; 3955 memcpy(pos, beacon->head, beacon->head_len); 3956 pos += beacon->head_len; 3957 } 3958 if (beacon->tail_len) { 3959 new_beacon->tail_len = beacon->tail_len; 3960 new_beacon->tail = pos; 3961 memcpy(pos, beacon->tail, beacon->tail_len); 3962 pos += beacon->tail_len; 3963 } 3964 if (beacon->beacon_ies_len) { 3965 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3966 new_beacon->beacon_ies = pos; 3967 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3968 pos += beacon->beacon_ies_len; 3969 } 3970 if (beacon->proberesp_ies_len) { 3971 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3972 new_beacon->proberesp_ies = pos; 3973 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3974 pos += beacon->proberesp_ies_len; 3975 } 3976 if (beacon->assocresp_ies_len) { 3977 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3978 new_beacon->assocresp_ies = pos; 3979 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3980 pos += beacon->assocresp_ies_len; 3981 } 3982 if (beacon->probe_resp_len) { 3983 new_beacon->probe_resp_len = beacon->probe_resp_len; 3984 new_beacon->probe_resp = pos; 3985 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3986 pos += beacon->probe_resp_len; 3987 } 3988 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3989 pos += ieee80211_copy_mbssid_beacon(pos, 3990 new_beacon->mbssid_ies, 3991 beacon->mbssid_ies); 3992 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3993 pos += ieee80211_copy_rnr_beacon(pos, 3994 new_beacon->rnr_ies, 3995 beacon->rnr_ies); 3996 } 3997 3998 /* might copy -1, meaning no changes requested */ 3999 new_beacon->ftm_responder = beacon->ftm_responder; 4000 if (beacon->lci) { 4001 new_beacon->lci_len = beacon->lci_len; 4002 new_beacon->lci = pos; 4003 memcpy(pos, beacon->lci, beacon->lci_len); 4004 pos += beacon->lci_len; 4005 } 4006 if (beacon->civicloc) { 4007 new_beacon->civicloc_len = beacon->civicloc_len; 4008 new_beacon->civicloc = pos; 4009 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 4010 pos += beacon->civicloc_len; 4011 } 4012 4013 return new_beacon; 4014 } 4015 4016 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 4017 { 4018 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4019 struct ieee80211_local *local = sdata->local; 4020 struct ieee80211_bss_conf *tx_bss_conf; 4021 struct ieee80211_link_data *link_data; 4022 4023 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4024 return; 4025 4026 rcu_read_lock(); 4027 4028 link_data = rcu_dereference(sdata->link[link_id]); 4029 if (WARN_ON(!link_data)) { 4030 rcu_read_unlock(); 4031 return; 4032 } 4033 4034 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf); 4035 if (tx_bss_conf == link_data->conf) { 4036 /* Trigger ieee80211_csa_finish() on the non-transmitting 4037 * interfaces when channel switch is received on 4038 * transmitting interface 4039 */ 4040 struct ieee80211_link_data *iter; 4041 4042 for_each_sdata_link_rcu(local, iter) { 4043 if (iter->sdata == sdata || 4044 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf) 4045 continue; 4046 4047 wiphy_work_queue(iter->sdata->local->hw.wiphy, 4048 &iter->csa.finalize_work); 4049 } 4050 } 4051 4052 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 4053 4054 rcu_read_unlock(); 4055 } 4056 EXPORT_SYMBOL(ieee80211_csa_finish); 4057 4058 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif) 4059 { 4060 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4061 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4062 struct ieee80211_local *local = sdata->local; 4063 4064 sdata_info(sdata, "channel switch failed, disconnecting\n"); 4065 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 4066 } 4067 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 4068 4069 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 4070 u64 *changed) 4071 { 4072 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4073 int err; 4074 4075 switch (sdata->vif.type) { 4076 case NL80211_IFTYPE_AP: 4077 if (!link_data->u.ap.next_beacon) 4078 return -EINVAL; 4079 4080 err = ieee80211_assign_beacon(sdata, link_data, 4081 link_data->u.ap.next_beacon, 4082 NULL, NULL, changed); 4083 ieee80211_free_next_beacon(link_data); 4084 4085 if (err < 0) 4086 return err; 4087 break; 4088 case NL80211_IFTYPE_ADHOC: 4089 err = ieee80211_ibss_finish_csa(sdata, changed); 4090 if (err < 0) 4091 return err; 4092 break; 4093 #ifdef CONFIG_MAC80211_MESH 4094 case NL80211_IFTYPE_MESH_POINT: 4095 err = ieee80211_mesh_finish_csa(sdata, changed); 4096 if (err < 0) 4097 return err; 4098 break; 4099 #endif 4100 default: 4101 WARN_ON(1); 4102 return -EINVAL; 4103 } 4104 4105 return 0; 4106 } 4107 4108 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4109 { 4110 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4111 struct ieee80211_local *local = sdata->local; 4112 struct ieee80211_bss_conf *link_conf = link_data->conf; 4113 u64 changed = 0; 4114 int err; 4115 4116 lockdep_assert_wiphy(local->hw.wiphy); 4117 4118 /* 4119 * using reservation isn't immediate as it may be deferred until later 4120 * with multi-vif. once reservation is complete it will re-schedule the 4121 * work with no reserved_chanctx so verify chandef to check if it 4122 * completed successfully 4123 */ 4124 4125 if (link_data->reserved_chanctx) { 4126 /* 4127 * with multi-vif csa driver may call ieee80211_csa_finish() 4128 * many times while waiting for other interfaces to use their 4129 * reservations 4130 */ 4131 if (link_data->reserved_ready) 4132 return 0; 4133 4134 return ieee80211_link_use_reserved_context(link_data); 4135 } 4136 4137 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 4138 &link_data->csa.chanreq.oper)) 4139 return -EINVAL; 4140 4141 link_conf->csa_active = false; 4142 4143 err = ieee80211_set_after_csa_beacon(link_data, &changed); 4144 if (err) 4145 return err; 4146 4147 ieee80211_link_info_change_notify(sdata, link_data, changed); 4148 4149 ieee80211_vif_unblock_queues_csa(sdata); 4150 4151 err = drv_post_channel_switch(link_data); 4152 if (err) 4153 return err; 4154 4155 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 4156 link_data->link_id); 4157 4158 return 0; 4159 } 4160 4161 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 4162 { 4163 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4164 4165 if (__ieee80211_csa_finalize(link_data)) { 4166 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 4167 link_data->link_id); 4168 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 4169 GFP_KERNEL); 4170 } 4171 } 4172 4173 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 4174 { 4175 struct ieee80211_link_data *link = 4176 container_of(work, struct ieee80211_link_data, csa.finalize_work); 4177 struct ieee80211_sub_if_data *sdata = link->sdata; 4178 struct ieee80211_local *local = sdata->local; 4179 4180 lockdep_assert_wiphy(local->hw.wiphy); 4181 4182 /* AP might have been stopped while waiting for the lock. */ 4183 if (!link->conf->csa_active) 4184 return; 4185 4186 if (!ieee80211_sdata_running(sdata)) 4187 return; 4188 4189 ieee80211_csa_finalize(link); 4190 } 4191 4192 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 4193 struct cfg80211_csa_settings *params, 4194 u64 *changed) 4195 { 4196 struct ieee80211_sub_if_data *sdata = link_data->sdata; 4197 struct ieee80211_csa_settings csa = {}; 4198 int err; 4199 4200 switch (sdata->vif.type) { 4201 case NL80211_IFTYPE_AP: 4202 link_data->u.ap.next_beacon = 4203 cfg80211_beacon_dup(¶ms->beacon_after); 4204 if (!link_data->u.ap.next_beacon) 4205 return -ENOMEM; 4206 4207 /* 4208 * With a count of 0, we don't have to wait for any 4209 * TBTT before switching, so complete the CSA 4210 * immediately. In theory, with a count == 1 we 4211 * should delay the switch until just before the next 4212 * TBTT, but that would complicate things so we switch 4213 * immediately too. If we would delay the switch 4214 * until the next TBTT, we would have to set the probe 4215 * response here. 4216 * 4217 * TODO: A channel switch with count <= 1 without 4218 * sending a CSA action frame is kind of useless, 4219 * because the clients won't know we're changing 4220 * channels. The action frame must be implemented 4221 * either here or in the userspace. 4222 */ 4223 if (params->count <= 1) 4224 break; 4225 4226 if ((params->n_counter_offsets_beacon > 4227 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 4228 (params->n_counter_offsets_presp > 4229 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 4230 ieee80211_free_next_beacon(link_data); 4231 return -EINVAL; 4232 } 4233 4234 csa.counter_offsets_beacon = params->counter_offsets_beacon; 4235 csa.counter_offsets_presp = params->counter_offsets_presp; 4236 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 4237 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 4238 csa.count = params->count; 4239 4240 err = ieee80211_assign_beacon(sdata, link_data, 4241 ¶ms->beacon_csa, &csa, 4242 NULL, changed); 4243 if (err < 0) { 4244 ieee80211_free_next_beacon(link_data); 4245 return err; 4246 } 4247 4248 break; 4249 case NL80211_IFTYPE_ADHOC: 4250 if (!sdata->vif.cfg.ibss_joined) 4251 return -EINVAL; 4252 4253 if (params->chandef.width != sdata->u.ibss.chandef.width) 4254 return -EINVAL; 4255 4256 switch (params->chandef.width) { 4257 case NL80211_CHAN_WIDTH_40: 4258 if (cfg80211_get_chandef_type(¶ms->chandef) != 4259 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 4260 return -EINVAL; 4261 break; 4262 case NL80211_CHAN_WIDTH_5: 4263 case NL80211_CHAN_WIDTH_10: 4264 case NL80211_CHAN_WIDTH_20_NOHT: 4265 case NL80211_CHAN_WIDTH_20: 4266 break; 4267 default: 4268 return -EINVAL; 4269 } 4270 4271 /* changes into another band are not supported */ 4272 if (sdata->u.ibss.chandef.chan->band != 4273 params->chandef.chan->band) 4274 return -EINVAL; 4275 4276 /* see comments in the NL80211_IFTYPE_AP block */ 4277 if (params->count > 1) { 4278 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 4279 if (err < 0) 4280 return err; 4281 } 4282 4283 ieee80211_send_action_csa(sdata, params); 4284 4285 break; 4286 #ifdef CONFIG_MAC80211_MESH 4287 case NL80211_IFTYPE_MESH_POINT: { 4288 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 4289 4290 /* changes into another band are not supported */ 4291 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 4292 params->chandef.chan->band) 4293 return -EINVAL; 4294 4295 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 4296 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 4297 if (!ifmsh->pre_value) 4298 ifmsh->pre_value = 1; 4299 else 4300 ifmsh->pre_value++; 4301 } 4302 4303 /* see comments in the NL80211_IFTYPE_AP block */ 4304 if (params->count > 1) { 4305 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 4306 if (err < 0) { 4307 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 4308 return err; 4309 } 4310 } 4311 4312 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 4313 ieee80211_send_action_csa(sdata, params); 4314 4315 break; 4316 } 4317 #endif 4318 default: 4319 return -EOPNOTSUPP; 4320 } 4321 4322 return 0; 4323 } 4324 4325 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 4326 { 4327 link->conf->color_change_active = false; 4328 4329 ieee80211_free_next_beacon(link); 4330 4331 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 4332 } 4333 4334 static int 4335 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4336 struct cfg80211_csa_settings *params) 4337 { 4338 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4339 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 4340 struct ieee80211_local *local = sdata->local; 4341 struct ieee80211_channel_switch ch_switch = { 4342 .link_id = params->link_id, 4343 }; 4344 struct ieee80211_chanctx_conf *conf; 4345 struct ieee80211_chanctx *chanctx; 4346 struct ieee80211_bss_conf *link_conf; 4347 struct ieee80211_link_data *link_data; 4348 u64 changed = 0; 4349 u8 link_id = params->link_id; 4350 int err; 4351 4352 lockdep_assert_wiphy(local->hw.wiphy); 4353 4354 if (ieee80211_is_scan_ongoing(wiphy, local, ¶ms->chandef)) 4355 return -EBUSY; 4356 4357 if (sdata->wdev.links[link_id].cac_started) 4358 return -EBUSY; 4359 4360 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4361 return -EINVAL; 4362 4363 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 4364 if (!link_data) 4365 return -ENOLINK; 4366 4367 link_conf = link_data->conf; 4368 4369 if (chanreq.oper.punctured && !link_conf->eht_support) 4370 return -EINVAL; 4371 4372 /* don't allow another channel switch if one is already active. */ 4373 if (link_conf->csa_active) 4374 return -EBUSY; 4375 4376 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 4377 if (!conf) { 4378 err = -EBUSY; 4379 goto out; 4380 } 4381 4382 if (params->chandef.chan->freq_offset) { 4383 /* this may work, but is untested */ 4384 err = -EOPNOTSUPP; 4385 goto out; 4386 } 4387 4388 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 4389 ¶ms->unsol_bcast_probe_resp, 4390 link_data, link_conf, &changed); 4391 if (err) 4392 goto out; 4393 4394 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 4395 4396 ch_switch.timestamp = 0; 4397 ch_switch.device_timestamp = 0; 4398 ch_switch.block_tx = params->block_tx; 4399 ch_switch.chandef = chanreq.oper; 4400 ch_switch.count = params->count; 4401 4402 err = drv_pre_channel_switch(sdata, &ch_switch); 4403 if (err) 4404 goto out; 4405 4406 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4407 chanctx->mode, 4408 params->radar_required); 4409 if (err) 4410 goto out; 4411 4412 /* if reservation is invalid then this will fail */ 4413 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4414 if (err) { 4415 ieee80211_link_unreserve_chanctx(link_data); 4416 goto out; 4417 } 4418 4419 /* if there is a color change in progress, abort it */ 4420 if (link_conf->color_change_active) 4421 ieee80211_color_change_abort(link_data); 4422 4423 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4424 if (err) { 4425 ieee80211_link_unreserve_chanctx(link_data); 4426 goto out; 4427 } 4428 4429 link_data->csa.chanreq = chanreq; 4430 link_conf->csa_active = true; 4431 4432 if (params->block_tx) 4433 ieee80211_vif_block_queues_csa(sdata); 4434 4435 cfg80211_ch_switch_started_notify(sdata->dev, 4436 &link_data->csa.chanreq.oper, link_id, 4437 params->count, params->block_tx); 4438 4439 if (changed) { 4440 ieee80211_link_info_change_notify(sdata, link_data, changed); 4441 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4442 } else { 4443 /* if the beacon didn't change, we can finalize immediately */ 4444 ieee80211_csa_finalize(link_data); 4445 } 4446 4447 out: 4448 return err; 4449 } 4450 4451 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4452 struct cfg80211_csa_settings *params) 4453 { 4454 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4455 struct ieee80211_local *local = sdata->local; 4456 4457 lockdep_assert_wiphy(local->hw.wiphy); 4458 4459 return __ieee80211_channel_switch(wiphy, dev, params); 4460 } 4461 4462 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4463 { 4464 lockdep_assert_wiphy(local->hw.wiphy); 4465 4466 local->roc_cookie_counter++; 4467 4468 /* wow, you wrapped 64 bits ... more likely a bug */ 4469 if (WARN_ON(local->roc_cookie_counter == 0)) 4470 local->roc_cookie_counter++; 4471 4472 return local->roc_cookie_counter; 4473 } 4474 4475 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4476 u64 *cookie, gfp_t gfp) 4477 { 4478 unsigned long spin_flags; 4479 struct sk_buff *ack_skb; 4480 int id; 4481 4482 ack_skb = skb_copy(skb, gfp); 4483 if (!ack_skb) 4484 return -ENOMEM; 4485 4486 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4487 id = idr_alloc(&local->ack_status_frames, ack_skb, 4488 1, 0x2000, GFP_ATOMIC); 4489 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4490 4491 if (id < 0) { 4492 kfree_skb(ack_skb); 4493 return -ENOMEM; 4494 } 4495 4496 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4497 IEEE80211_SKB_CB(skb)->status_data = id; 4498 4499 *cookie = ieee80211_mgmt_tx_cookie(local); 4500 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4501 4502 return 0; 4503 } 4504 4505 static void 4506 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4507 struct wireless_dev *wdev, 4508 struct mgmt_frame_regs *upd) 4509 { 4510 struct ieee80211_local *local = wiphy_priv(wiphy); 4511 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4512 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4513 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4514 bool global_change, intf_change; 4515 4516 global_change = 4517 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4518 (local->rx_mcast_action_reg != 4519 !!(upd->global_mcast_stypes & action_mask)); 4520 local->probe_req_reg = upd->global_stypes & preq_mask; 4521 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4522 4523 intf_change = (sdata->vif.probe_req_reg != 4524 !!(upd->interface_stypes & preq_mask)) || 4525 (sdata->vif.rx_mcast_action_reg != 4526 !!(upd->interface_mcast_stypes & action_mask)); 4527 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4528 sdata->vif.rx_mcast_action_reg = 4529 upd->interface_mcast_stypes & action_mask; 4530 4531 if (!local->open_count) 4532 return; 4533 4534 if (intf_change && ieee80211_sdata_running(sdata)) 4535 drv_config_iface_filter(local, sdata, 4536 sdata->vif.probe_req_reg ? 4537 FIF_PROBE_REQ : 0, 4538 FIF_PROBE_REQ); 4539 4540 if (global_change) 4541 ieee80211_configure_filter(local); 4542 } 4543 4544 static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx, 4545 u32 tx_ant, u32 rx_ant) 4546 { 4547 struct ieee80211_local *local = wiphy_priv(wiphy); 4548 int ret; 4549 4550 if (local->started) 4551 return -EOPNOTSUPP; 4552 4553 ret = drv_set_antenna(local, tx_ant, rx_ant); 4554 if (ret) 4555 return ret; 4556 4557 local->rx_chains = hweight8(rx_ant); 4558 return 0; 4559 } 4560 4561 static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx, 4562 u32 *tx_ant, u32 *rx_ant) 4563 { 4564 struct ieee80211_local *local = wiphy_priv(wiphy); 4565 4566 return drv_get_antenna(local, radio_idx, tx_ant, rx_ant); 4567 } 4568 4569 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4570 struct net_device *dev, 4571 struct cfg80211_gtk_rekey_data *data) 4572 { 4573 struct ieee80211_local *local = wiphy_priv(wiphy); 4574 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4575 4576 if (!local->ops->set_rekey_data) 4577 return -EOPNOTSUPP; 4578 4579 drv_set_rekey_data(local, sdata, data); 4580 4581 return 0; 4582 } 4583 4584 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4585 const u8 *peer, u64 *cookie) 4586 { 4587 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4588 struct ieee80211_local *local = sdata->local; 4589 struct ieee80211_qos_hdr *nullfunc; 4590 struct sk_buff *skb; 4591 int size = sizeof(*nullfunc); 4592 __le16 fc; 4593 bool qos; 4594 struct ieee80211_tx_info *info; 4595 struct sta_info *sta; 4596 struct ieee80211_chanctx_conf *chanctx_conf; 4597 enum nl80211_band band; 4598 int ret; 4599 4600 /* the lock is needed to assign the cookie later */ 4601 lockdep_assert_wiphy(local->hw.wiphy); 4602 4603 rcu_read_lock(); 4604 sta = sta_info_get_bss(sdata, peer); 4605 if (!sta) { 4606 ret = -ENOLINK; 4607 goto unlock; 4608 } 4609 4610 qos = sta->sta.wme; 4611 4612 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4613 if (WARN_ON(!chanctx_conf)) { 4614 ret = -EINVAL; 4615 goto unlock; 4616 } 4617 band = chanctx_conf->def.chan->band; 4618 4619 if (qos) { 4620 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4621 IEEE80211_STYPE_QOS_NULLFUNC | 4622 IEEE80211_FCTL_FROMDS); 4623 } else { 4624 size -= 2; 4625 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4626 IEEE80211_STYPE_NULLFUNC | 4627 IEEE80211_FCTL_FROMDS); 4628 } 4629 4630 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4631 if (!skb) { 4632 ret = -ENOMEM; 4633 goto unlock; 4634 } 4635 4636 skb->dev = dev; 4637 4638 skb_reserve(skb, local->hw.extra_tx_headroom); 4639 4640 nullfunc = skb_put(skb, size); 4641 nullfunc->frame_control = fc; 4642 nullfunc->duration_id = 0; 4643 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4644 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4645 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4646 nullfunc->seq_ctrl = 0; 4647 4648 info = IEEE80211_SKB_CB(skb); 4649 4650 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4651 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4652 info->band = band; 4653 4654 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4655 skb->priority = 7; 4656 if (qos) 4657 nullfunc->qos_ctrl = cpu_to_le16(7); 4658 4659 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4660 if (ret) { 4661 kfree_skb(skb); 4662 goto unlock; 4663 } 4664 4665 local_bh_disable(); 4666 ieee80211_xmit(sdata, sta, skb); 4667 local_bh_enable(); 4668 4669 ret = 0; 4670 unlock: 4671 rcu_read_unlock(); 4672 4673 return ret; 4674 } 4675 4676 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4677 struct wireless_dev *wdev, 4678 unsigned int link_id, 4679 struct cfg80211_chan_def *chandef) 4680 { 4681 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4682 struct ieee80211_local *local = wiphy_priv(wiphy); 4683 struct ieee80211_chanctx_conf *chanctx_conf; 4684 struct ieee80211_link_data *link; 4685 int ret = -ENODATA; 4686 4687 rcu_read_lock(); 4688 link = rcu_dereference(sdata->link[link_id]); 4689 if (!link) { 4690 ret = -ENOLINK; 4691 goto out; 4692 } 4693 4694 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4695 if (chanctx_conf) { 4696 *chandef = link->conf->chanreq.oper; 4697 ret = 0; 4698 } else if (local->open_count > 0 && 4699 local->open_count == local->virt_monitors && 4700 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4701 *chandef = local->monitor_chanreq.oper; 4702 ret = 0; 4703 } 4704 out: 4705 rcu_read_unlock(); 4706 4707 return ret; 4708 } 4709 4710 #ifdef CONFIG_PM 4711 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4712 { 4713 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4714 } 4715 #endif 4716 4717 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4718 struct net_device *dev, 4719 struct cfg80211_qos_map *qos_map) 4720 { 4721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4722 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4723 4724 if (qos_map) { 4725 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4726 if (!new_qos_map) 4727 return -ENOMEM; 4728 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4729 } else { 4730 /* A NULL qos_map was passed to disable QoS mapping */ 4731 new_qos_map = NULL; 4732 } 4733 4734 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4735 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4736 if (old_qos_map) 4737 kfree_rcu(old_qos_map, rcu_head); 4738 4739 return 0; 4740 } 4741 4742 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4743 struct net_device *dev, 4744 unsigned int link_id, 4745 struct cfg80211_chan_def *chandef) 4746 { 4747 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4748 struct ieee80211_link_data *link; 4749 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4750 int ret; 4751 u64 changed = 0; 4752 4753 link = sdata_dereference(sdata->link[link_id], sdata); 4754 4755 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4756 if (ret == 0) 4757 ieee80211_link_info_change_notify(sdata, link, changed); 4758 4759 return ret; 4760 } 4761 4762 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4763 u8 tsid, const u8 *peer, u8 up, 4764 u16 admitted_time) 4765 { 4766 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4767 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4768 int ac = ieee802_1d_to_ac[up]; 4769 4770 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4771 return -EOPNOTSUPP; 4772 4773 if (!(sdata->wmm_acm & BIT(up))) 4774 return -EINVAL; 4775 4776 if (ifmgd->tx_tspec[ac].admitted_time) 4777 return -EBUSY; 4778 4779 if (admitted_time) { 4780 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4781 ifmgd->tx_tspec[ac].tsid = tsid; 4782 ifmgd->tx_tspec[ac].up = up; 4783 } 4784 4785 return 0; 4786 } 4787 4788 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4789 u8 tsid, const u8 *peer) 4790 { 4791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4792 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4793 struct ieee80211_local *local = wiphy_priv(wiphy); 4794 int ac; 4795 4796 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4797 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4798 4799 /* skip unused entries */ 4800 if (!tx_tspec->admitted_time) 4801 continue; 4802 4803 if (tx_tspec->tsid != tsid) 4804 continue; 4805 4806 /* due to this new packets will be reassigned to non-ACM ACs */ 4807 tx_tspec->up = -1; 4808 4809 /* Make sure that all packets have been sent to avoid to 4810 * restore the QoS params on packets that are still on the 4811 * queues. 4812 */ 4813 synchronize_net(); 4814 ieee80211_flush_queues(local, sdata, false); 4815 4816 /* restore the normal QoS parameters 4817 * (unconditionally to avoid races) 4818 */ 4819 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4820 tx_tspec->downgraded = false; 4821 ieee80211_sta_handle_tspec_ac_params(sdata); 4822 4823 /* finally clear all the data */ 4824 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4825 4826 return 0; 4827 } 4828 4829 return -ENOENT; 4830 } 4831 4832 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4833 u8 inst_id, 4834 enum nl80211_nan_func_term_reason reason, 4835 gfp_t gfp) 4836 { 4837 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4838 struct cfg80211_nan_func *func; 4839 u64 cookie; 4840 4841 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4842 return; 4843 4844 spin_lock_bh(&sdata->u.nan.func_lock); 4845 4846 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4847 if (WARN_ON(!func)) { 4848 spin_unlock_bh(&sdata->u.nan.func_lock); 4849 return; 4850 } 4851 4852 cookie = func->cookie; 4853 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4854 4855 spin_unlock_bh(&sdata->u.nan.func_lock); 4856 4857 cfg80211_free_nan_func(func); 4858 4859 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4860 reason, cookie, gfp); 4861 } 4862 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4863 4864 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4865 struct cfg80211_nan_match_params *match, 4866 gfp_t gfp) 4867 { 4868 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4869 struct cfg80211_nan_func *func; 4870 4871 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4872 return; 4873 4874 spin_lock_bh(&sdata->u.nan.func_lock); 4875 4876 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4877 if (WARN_ON(!func)) { 4878 spin_unlock_bh(&sdata->u.nan.func_lock); 4879 return; 4880 } 4881 match->cookie = func->cookie; 4882 4883 spin_unlock_bh(&sdata->u.nan.func_lock); 4884 4885 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4886 } 4887 EXPORT_SYMBOL(ieee80211_nan_func_match); 4888 4889 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4890 struct net_device *dev, 4891 const bool enabled) 4892 { 4893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4894 4895 sdata->u.ap.multicast_to_unicast = enabled; 4896 4897 return 0; 4898 } 4899 4900 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4901 struct txq_info *txqi) 4902 { 4903 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4904 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4905 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4906 } 4907 4908 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4909 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4910 txqstats->backlog_packets = txqi->tin.backlog_packets; 4911 } 4912 4913 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4914 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4915 txqstats->flows = txqi->tin.flows; 4916 } 4917 4918 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4919 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4920 txqstats->drops = txqi->cstats.drop_count; 4921 } 4922 4923 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4924 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4925 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4926 } 4927 4928 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4929 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4930 txqstats->overlimit = txqi->tin.overlimit; 4931 } 4932 4933 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4934 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4935 txqstats->collisions = txqi->tin.collisions; 4936 } 4937 4938 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4939 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4940 txqstats->tx_bytes = txqi->tin.tx_bytes; 4941 } 4942 4943 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4944 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4945 txqstats->tx_packets = txqi->tin.tx_packets; 4946 } 4947 } 4948 4949 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4950 struct wireless_dev *wdev, 4951 struct cfg80211_txq_stats *txqstats) 4952 { 4953 struct ieee80211_local *local = wiphy_priv(wiphy); 4954 struct ieee80211_sub_if_data *sdata; 4955 int ret = 0; 4956 4957 spin_lock_bh(&local->fq.lock); 4958 4959 if (wdev) { 4960 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4961 if (!sdata->vif.txq) { 4962 ret = 1; 4963 goto out; 4964 } 4965 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4966 } else { 4967 /* phy stats */ 4968 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4969 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4970 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4971 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4972 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4973 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4974 txqstats->backlog_packets = local->fq.backlog; 4975 txqstats->backlog_bytes = local->fq.memory_usage; 4976 txqstats->overlimit = local->fq.overlimit; 4977 txqstats->overmemory = local->fq.overmemory; 4978 txqstats->collisions = local->fq.collisions; 4979 txqstats->max_flows = local->fq.flows_cnt; 4980 } 4981 4982 out: 4983 spin_unlock_bh(&local->fq.lock); 4984 4985 return ret; 4986 } 4987 4988 static int 4989 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4990 struct net_device *dev, 4991 struct cfg80211_ftm_responder_stats *ftm_stats) 4992 { 4993 struct ieee80211_local *local = wiphy_priv(wiphy); 4994 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4995 4996 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4997 } 4998 4999 static int 5000 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 5001 struct cfg80211_pmsr_request *request) 5002 { 5003 struct ieee80211_local *local = wiphy_priv(wiphy); 5004 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 5005 5006 return drv_start_pmsr(local, sdata, request); 5007 } 5008 5009 static void 5010 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 5011 struct cfg80211_pmsr_request *request) 5012 { 5013 struct ieee80211_local *local = wiphy_priv(wiphy); 5014 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 5015 5016 return drv_abort_pmsr(local, sdata, request); 5017 } 5018 5019 static int ieee80211_set_tid_config(struct wiphy *wiphy, 5020 struct net_device *dev, 5021 struct cfg80211_tid_config *tid_conf) 5022 { 5023 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5024 struct sta_info *sta; 5025 5026 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5027 5028 if (!sdata->local->ops->set_tid_config) 5029 return -EOPNOTSUPP; 5030 5031 if (!tid_conf->peer) 5032 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 5033 5034 sta = sta_info_get_bss(sdata, tid_conf->peer); 5035 if (!sta) 5036 return -ENOENT; 5037 5038 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 5039 } 5040 5041 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 5042 struct net_device *dev, 5043 const u8 *peer, u8 tids) 5044 { 5045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5046 struct sta_info *sta; 5047 5048 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5049 5050 if (!sdata->local->ops->reset_tid_config) 5051 return -EOPNOTSUPP; 5052 5053 if (!peer) 5054 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 5055 5056 sta = sta_info_get_bss(sdata, peer); 5057 if (!sta) 5058 return -ENOENT; 5059 5060 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 5061 } 5062 5063 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 5064 struct cfg80211_sar_specs *sar) 5065 { 5066 struct ieee80211_local *local = wiphy_priv(wiphy); 5067 5068 if (!local->ops->set_sar_specs) 5069 return -EOPNOTSUPP; 5070 5071 return local->ops->set_sar_specs(&local->hw, sar); 5072 } 5073 5074 static int 5075 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 5076 u64 *changed) 5077 { 5078 struct ieee80211_sub_if_data *sdata = link->sdata; 5079 5080 switch (sdata->vif.type) { 5081 case NL80211_IFTYPE_AP: { 5082 int ret; 5083 5084 if (!link->u.ap.next_beacon) 5085 return -EINVAL; 5086 5087 ret = ieee80211_assign_beacon(sdata, link, 5088 link->u.ap.next_beacon, 5089 NULL, NULL, changed); 5090 ieee80211_free_next_beacon(link); 5091 5092 if (ret < 0) 5093 return ret; 5094 5095 break; 5096 } 5097 default: 5098 WARN_ON_ONCE(1); 5099 return -EINVAL; 5100 } 5101 5102 return 0; 5103 } 5104 5105 static int 5106 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 5107 struct cfg80211_color_change_settings *params, 5108 u64 *changed) 5109 { 5110 struct ieee80211_sub_if_data *sdata = link->sdata; 5111 struct ieee80211_color_change_settings color_change = {}; 5112 int err; 5113 5114 switch (sdata->vif.type) { 5115 case NL80211_IFTYPE_AP: 5116 link->u.ap.next_beacon = 5117 cfg80211_beacon_dup(¶ms->beacon_next); 5118 if (!link->u.ap.next_beacon) 5119 return -ENOMEM; 5120 5121 if (params->count <= 1) 5122 break; 5123 5124 color_change.counter_offset_beacon = 5125 params->counter_offset_beacon; 5126 color_change.counter_offset_presp = 5127 params->counter_offset_presp; 5128 color_change.count = params->count; 5129 5130 err = ieee80211_assign_beacon(sdata, link, 5131 ¶ms->beacon_color_change, 5132 NULL, &color_change, changed); 5133 if (err < 0) { 5134 ieee80211_free_next_beacon(link); 5135 return err; 5136 } 5137 break; 5138 default: 5139 return -EOPNOTSUPP; 5140 } 5141 5142 return 0; 5143 } 5144 5145 static void 5146 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 5147 u8 color, int enable, u64 changed) 5148 { 5149 struct ieee80211_sub_if_data *sdata = link->sdata; 5150 5151 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5152 5153 link->conf->he_bss_color.color = color; 5154 link->conf->he_bss_color.enabled = enable; 5155 changed |= BSS_CHANGED_HE_BSS_COLOR; 5156 5157 ieee80211_link_info_change_notify(sdata, link, changed); 5158 5159 if (!link->conf->nontransmitted && 5160 rcu_access_pointer(link->conf->tx_bss_conf)) { 5161 struct ieee80211_link_data *tmp; 5162 5163 for_each_sdata_link(sdata->local, tmp) { 5164 if (tmp->sdata == sdata || 5165 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf) 5166 continue; 5167 5168 tmp->conf->he_bss_color.color = color; 5169 tmp->conf->he_bss_color.enabled = enable; 5170 ieee80211_link_info_change_notify(tmp->sdata, tmp, 5171 BSS_CHANGED_HE_BSS_COLOR); 5172 } 5173 } 5174 } 5175 5176 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 5177 { 5178 struct ieee80211_sub_if_data *sdata = link->sdata; 5179 struct ieee80211_local *local = sdata->local; 5180 u64 changed = 0; 5181 int err; 5182 5183 lockdep_assert_wiphy(local->hw.wiphy); 5184 5185 link->conf->color_change_active = false; 5186 5187 err = ieee80211_set_after_color_change_beacon(link, &changed); 5188 if (err) { 5189 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 5190 return err; 5191 } 5192 5193 ieee80211_color_change_bss_config_notify(link, 5194 link->conf->color_change_color, 5195 1, changed); 5196 cfg80211_color_change_notify(sdata->dev, link->link_id); 5197 5198 return 0; 5199 } 5200 5201 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 5202 struct wiphy_work *work) 5203 { 5204 struct ieee80211_link_data *link = 5205 container_of(work, struct ieee80211_link_data, 5206 color_change_finalize_work); 5207 struct ieee80211_sub_if_data *sdata = link->sdata; 5208 struct ieee80211_bss_conf *link_conf = link->conf; 5209 struct ieee80211_local *local = sdata->local; 5210 5211 lockdep_assert_wiphy(local->hw.wiphy); 5212 5213 /* AP might have been stopped while waiting for the lock. */ 5214 if (!link_conf->color_change_active) 5215 return; 5216 5217 if (!ieee80211_sdata_running(sdata)) 5218 return; 5219 5220 ieee80211_color_change_finalize(link); 5221 } 5222 5223 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 5224 struct wiphy_work *work) 5225 { 5226 struct ieee80211_link_data *link = 5227 container_of(work, struct ieee80211_link_data, 5228 color_collision_detect_work.work); 5229 struct ieee80211_sub_if_data *sdata = link->sdata; 5230 5231 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 5232 link->link_id); 5233 } 5234 5235 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 5236 { 5237 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5238 struct ieee80211_link_data *link; 5239 5240 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5241 return; 5242 5243 rcu_read_lock(); 5244 5245 link = rcu_dereference(sdata->link[link_id]); 5246 if (WARN_ON(!link)) { 5247 rcu_read_unlock(); 5248 return; 5249 } 5250 5251 wiphy_work_queue(sdata->local->hw.wiphy, 5252 &link->color_change_finalize_work); 5253 5254 rcu_read_unlock(); 5255 } 5256 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 5257 5258 void 5259 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 5260 u64 color_bitmap, u8 link_id) 5261 { 5262 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 5263 struct ieee80211_link_data *link; 5264 5265 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5266 return; 5267 5268 rcu_read_lock(); 5269 5270 link = rcu_dereference(sdata->link[link_id]); 5271 if (WARN_ON(!link)) { 5272 rcu_read_unlock(); 5273 return; 5274 } 5275 5276 if (link->conf->color_change_active || link->conf->csa_active) { 5277 rcu_read_unlock(); 5278 return; 5279 } 5280 5281 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy, 5282 &link->color_collision_detect_work)) { 5283 rcu_read_unlock(); 5284 return; 5285 } 5286 5287 link->color_bitmap = color_bitmap; 5288 /* queue the color collision detection event every 500 ms in order to 5289 * avoid sending too much netlink messages to userspace. 5290 */ 5291 wiphy_delayed_work_queue(sdata->local->hw.wiphy, 5292 &link->color_collision_detect_work, 5293 msecs_to_jiffies(500)); 5294 5295 rcu_read_unlock(); 5296 } 5297 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 5298 5299 static int 5300 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 5301 struct cfg80211_color_change_settings *params) 5302 { 5303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5304 struct ieee80211_local *local = sdata->local; 5305 struct ieee80211_bss_conf *link_conf; 5306 struct ieee80211_link_data *link; 5307 u8 link_id = params->link_id; 5308 u64 changed = 0; 5309 int err; 5310 5311 lockdep_assert_wiphy(local->hw.wiphy); 5312 5313 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 5314 return -EINVAL; 5315 5316 link = wiphy_dereference(wiphy, sdata->link[link_id]); 5317 if (!link) 5318 return -ENOLINK; 5319 5320 link_conf = link->conf; 5321 5322 if (link_conf->nontransmitted) 5323 return -EINVAL; 5324 5325 /* don't allow another color change if one is already active or if csa 5326 * is active 5327 */ 5328 if (link_conf->color_change_active || link_conf->csa_active) { 5329 err = -EBUSY; 5330 goto out; 5331 } 5332 5333 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 5334 ¶ms->unsol_bcast_probe_resp, 5335 link, link_conf, &changed); 5336 if (err) 5337 goto out; 5338 5339 err = ieee80211_set_color_change_beacon(link, params, &changed); 5340 if (err) 5341 goto out; 5342 5343 link_conf->color_change_active = true; 5344 link_conf->color_change_color = params->color; 5345 5346 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 5347 5348 if (changed) 5349 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 5350 else 5351 /* if the beacon didn't change, we can finalize immediately */ 5352 ieee80211_color_change_finalize(link); 5353 5354 out: 5355 5356 return err; 5357 } 5358 5359 static int 5360 ieee80211_set_radar_background(struct wiphy *wiphy, 5361 struct cfg80211_chan_def *chandef) 5362 { 5363 struct ieee80211_local *local = wiphy_priv(wiphy); 5364 5365 if (!local->ops->set_radar_background) 5366 return -EOPNOTSUPP; 5367 5368 return local->ops->set_radar_background(&local->hw, chandef); 5369 } 5370 5371 static int ieee80211_add_intf_link(struct wiphy *wiphy, 5372 struct wireless_dev *wdev, 5373 unsigned int link_id) 5374 { 5375 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5376 5377 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5378 5379 if (wdev->use_4addr) 5380 return -EOPNOTSUPP; 5381 5382 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 5383 } 5384 5385 static void ieee80211_del_intf_link(struct wiphy *wiphy, 5386 struct wireless_dev *wdev, 5387 unsigned int link_id) 5388 { 5389 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 5390 u16 new_links = wdev->valid_links & ~BIT(link_id); 5391 5392 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5393 5394 /* During the link teardown process, certain functions require the 5395 * link_id to remain in the valid_links bitmap. Therefore, instead 5396 * of removing the link_id from the bitmap, pass a masked value to 5397 * simulate as if link_id does not exist anymore. 5398 */ 5399 ieee80211_vif_set_links(sdata, new_links, 0); 5400 } 5401 5402 static int 5403 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 5404 struct link_station_parameters *params) 5405 { 5406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5407 struct ieee80211_local *local = wiphy_priv(wiphy); 5408 struct sta_info *sta; 5409 int ret; 5410 5411 lockdep_assert_wiphy(local->hw.wiphy); 5412 5413 sta = sta_info_get_bss(sdata, params->mld_mac); 5414 if (!sta) 5415 return -ENOENT; 5416 5417 if (!sta->sta.valid_links) 5418 return -EINVAL; 5419 5420 if (sta->sta.valid_links & BIT(params->link_id)) 5421 return -EALREADY; 5422 5423 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5424 if (ret) 5425 return ret; 5426 5427 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5428 if (ret) { 5429 ieee80211_sta_free_link(sta, params->link_id); 5430 return ret; 5431 } 5432 5433 if (test_sta_flag(sta, WLAN_STA_ASSOC)) { 5434 struct link_sta_info *link_sta; 5435 5436 link_sta = sdata_dereference(sta->link[params->link_id], sdata); 5437 rate_control_rate_init(link_sta); 5438 } 5439 5440 /* ieee80211_sta_activate_link frees the link upon failure */ 5441 return ieee80211_sta_activate_link(sta, params->link_id); 5442 } 5443 5444 static int 5445 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5446 struct link_station_parameters *params) 5447 { 5448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5449 struct ieee80211_local *local = wiphy_priv(wiphy); 5450 struct sta_info *sta; 5451 5452 lockdep_assert_wiphy(local->hw.wiphy); 5453 5454 sta = sta_info_get_bss(sdata, params->mld_mac); 5455 if (!sta) 5456 return -ENOENT; 5457 5458 if (!(sta->sta.valid_links & BIT(params->link_id))) 5459 return -EINVAL; 5460 5461 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5462 params); 5463 } 5464 5465 static int 5466 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5467 struct link_station_del_parameters *params) 5468 { 5469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5470 struct sta_info *sta; 5471 5472 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5473 5474 sta = sta_info_get_bss(sdata, params->mld_mac); 5475 if (!sta) 5476 return -ENOENT; 5477 5478 if (!(sta->sta.valid_links & BIT(params->link_id))) 5479 return -EINVAL; 5480 5481 /* must not create a STA without links */ 5482 if (sta->sta.valid_links == BIT(params->link_id)) 5483 return -EINVAL; 5484 5485 ieee80211_sta_remove_link(sta, params->link_id); 5486 5487 return 0; 5488 } 5489 5490 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5491 struct net_device *dev, 5492 struct cfg80211_set_hw_timestamp *hwts) 5493 { 5494 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5495 struct ieee80211_local *local = sdata->local; 5496 5497 if (!local->ops->set_hw_timestamp) 5498 return -EOPNOTSUPP; 5499 5500 if (!check_sdata_in_driver(sdata)) 5501 return -EIO; 5502 5503 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5504 } 5505 5506 static int 5507 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5508 struct cfg80211_ttlm_params *params) 5509 { 5510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5511 5512 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5513 5514 return ieee80211_req_neg_ttlm(sdata, params); 5515 } 5516 5517 static int 5518 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev, 5519 struct cfg80211_ml_reconf_req *req) 5520 { 5521 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5522 5523 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5524 5525 return ieee80211_mgd_assoc_ml_reconf(sdata, req); 5526 } 5527 5528 static int 5529 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable) 5530 { 5531 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5532 5533 return ieee80211_mgd_set_epcs(sdata, enable); 5534 } 5535 5536 const struct cfg80211_ops mac80211_config_ops = { 5537 .add_virtual_intf = ieee80211_add_iface, 5538 .del_virtual_intf = ieee80211_del_iface, 5539 .change_virtual_intf = ieee80211_change_iface, 5540 .start_p2p_device = ieee80211_start_p2p_device, 5541 .stop_p2p_device = ieee80211_stop_p2p_device, 5542 .add_key = ieee80211_add_key, 5543 .del_key = ieee80211_del_key, 5544 .get_key = ieee80211_get_key, 5545 .set_default_key = ieee80211_config_default_key, 5546 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5547 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5548 .start_ap = ieee80211_start_ap, 5549 .change_beacon = ieee80211_change_beacon, 5550 .stop_ap = ieee80211_stop_ap, 5551 .add_station = ieee80211_add_station, 5552 .del_station = ieee80211_del_station, 5553 .change_station = ieee80211_change_station, 5554 .get_station = ieee80211_get_station, 5555 .dump_station = ieee80211_dump_station, 5556 .dump_survey = ieee80211_dump_survey, 5557 #ifdef CONFIG_MAC80211_MESH 5558 .add_mpath = ieee80211_add_mpath, 5559 .del_mpath = ieee80211_del_mpath, 5560 .change_mpath = ieee80211_change_mpath, 5561 .get_mpath = ieee80211_get_mpath, 5562 .dump_mpath = ieee80211_dump_mpath, 5563 .get_mpp = ieee80211_get_mpp, 5564 .dump_mpp = ieee80211_dump_mpp, 5565 .update_mesh_config = ieee80211_update_mesh_config, 5566 .get_mesh_config = ieee80211_get_mesh_config, 5567 .join_mesh = ieee80211_join_mesh, 5568 .leave_mesh = ieee80211_leave_mesh, 5569 #endif 5570 .join_ocb = ieee80211_join_ocb, 5571 .leave_ocb = ieee80211_leave_ocb, 5572 .change_bss = ieee80211_change_bss, 5573 .inform_bss = ieee80211_inform_bss, 5574 .set_txq_params = ieee80211_set_txq_params, 5575 .set_monitor_channel = ieee80211_set_monitor_channel, 5576 .suspend = ieee80211_suspend, 5577 .resume = ieee80211_resume, 5578 .scan = ieee80211_scan, 5579 .abort_scan = ieee80211_abort_scan, 5580 .sched_scan_start = ieee80211_sched_scan_start, 5581 .sched_scan_stop = ieee80211_sched_scan_stop, 5582 .auth = ieee80211_auth, 5583 .assoc = ieee80211_assoc, 5584 .deauth = ieee80211_deauth, 5585 .disassoc = ieee80211_disassoc, 5586 .join_ibss = ieee80211_join_ibss, 5587 .leave_ibss = ieee80211_leave_ibss, 5588 .set_mcast_rate = ieee80211_set_mcast_rate, 5589 .set_wiphy_params = ieee80211_set_wiphy_params, 5590 .set_tx_power = ieee80211_set_tx_power, 5591 .get_tx_power = ieee80211_get_tx_power, 5592 .rfkill_poll = ieee80211_rfkill_poll, 5593 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5594 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5595 .set_power_mgmt = ieee80211_set_power_mgmt, 5596 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5597 .remain_on_channel = ieee80211_remain_on_channel, 5598 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5599 .mgmt_tx = ieee80211_mgmt_tx, 5600 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5601 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5602 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5603 .update_mgmt_frame_registrations = 5604 ieee80211_update_mgmt_frame_registrations, 5605 .set_antenna = ieee80211_set_antenna, 5606 .get_antenna = ieee80211_get_antenna, 5607 .set_rekey_data = ieee80211_set_rekey_data, 5608 .tdls_oper = ieee80211_tdls_oper, 5609 .tdls_mgmt = ieee80211_tdls_mgmt, 5610 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5611 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5612 .probe_client = ieee80211_probe_client, 5613 .set_noack_map = ieee80211_set_noack_map, 5614 #ifdef CONFIG_PM 5615 .set_wakeup = ieee80211_set_wakeup, 5616 #endif 5617 .get_channel = ieee80211_cfg_get_channel, 5618 .start_radar_detection = ieee80211_start_radar_detection, 5619 .end_cac = ieee80211_end_cac, 5620 .channel_switch = ieee80211_channel_switch, 5621 .set_qos_map = ieee80211_set_qos_map, 5622 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5623 .add_tx_ts = ieee80211_add_tx_ts, 5624 .del_tx_ts = ieee80211_del_tx_ts, 5625 .start_nan = ieee80211_start_nan, 5626 .stop_nan = ieee80211_stop_nan, 5627 .nan_change_conf = ieee80211_nan_change_conf, 5628 .add_nan_func = ieee80211_add_nan_func, 5629 .del_nan_func = ieee80211_del_nan_func, 5630 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5631 .tx_control_port = ieee80211_tx_control_port, 5632 .get_txq_stats = ieee80211_get_txq_stats, 5633 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5634 .start_pmsr = ieee80211_start_pmsr, 5635 .abort_pmsr = ieee80211_abort_pmsr, 5636 .probe_mesh_link = ieee80211_probe_mesh_link, 5637 .set_tid_config = ieee80211_set_tid_config, 5638 .reset_tid_config = ieee80211_reset_tid_config, 5639 .set_sar_specs = ieee80211_set_sar_specs, 5640 .color_change = ieee80211_color_change, 5641 .set_radar_background = ieee80211_set_radar_background, 5642 .add_intf_link = ieee80211_add_intf_link, 5643 .del_intf_link = ieee80211_del_intf_link, 5644 .add_link_station = ieee80211_add_link_station, 5645 .mod_link_station = ieee80211_mod_link_station, 5646 .del_link_station = ieee80211_del_link_station, 5647 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5648 .set_ttlm = ieee80211_set_ttlm, 5649 .get_radio_mask = ieee80211_get_radio_mask, 5650 .assoc_ml_reconf = ieee80211_assoc_ml_reconf, 5651 .set_epcs = ieee80211_set_epcs, 5652 }; 5653