1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2024 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 lockdep_assert_wiphy(local->hw.wiphy); 218 219 ret = ieee80211_if_change_type(sdata, type); 220 if (ret) 221 return ret; 222 223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 225 ieee80211_check_fast_rx_iface(sdata); 226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 228 229 if (params->use_4addr == ifmgd->use_4addr) 230 return 0; 231 232 /* FIXME: no support for 4-addr MLO yet */ 233 if (ieee80211_vif_is_mld(&sdata->vif)) 234 return -EOPNOTSUPP; 235 236 sdata->u.mgd.use_4addr = params->use_4addr; 237 if (!ifmgd->associated) 238 return 0; 239 240 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 241 if (sta) 242 drv_sta_set_4addr(local, sdata, &sta->sta, 243 params->use_4addr); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 lockdep_assert_wiphy(sdata->local->hw.wiphy); 265 266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 456 457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 458 ret = ieee80211_set_tx_key(key); 459 460 return ret; 461 } 462 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 464 int link_id, u8 key_idx, bool pairwise, 465 const u8 *mac_addr, struct key_params *params) 466 { 467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 468 struct ieee80211_link_data *link = 469 ieee80211_link_or_deflink(sdata, link_id, false); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta = NULL; 472 struct ieee80211_key *key; 473 int err; 474 475 lockdep_assert_wiphy(local->hw.wiphy); 476 477 if (!ieee80211_sdata_running(sdata)) 478 return -ENETDOWN; 479 480 if (IS_ERR(link)) 481 return PTR_ERR(link); 482 483 if (pairwise && params->mode == NL80211_KEY_SET_TX) 484 return ieee80211_set_tx(sdata, mac_addr, key_idx); 485 486 /* reject WEP and TKIP keys if WEP failed to initialize */ 487 switch (params->cipher) { 488 case WLAN_CIPHER_SUITE_WEP40: 489 case WLAN_CIPHER_SUITE_TKIP: 490 case WLAN_CIPHER_SUITE_WEP104: 491 if (link_id >= 0) 492 return -EINVAL; 493 if (WARN_ON_ONCE(fips_enabled)) 494 return -EINVAL; 495 break; 496 default: 497 break; 498 } 499 500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 501 params->key, params->seq_len, params->seq); 502 if (IS_ERR(key)) 503 return PTR_ERR(key); 504 505 key->conf.link_id = link_id; 506 507 if (pairwise) 508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 509 510 if (params->mode == NL80211_KEY_NO_TX) 511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 512 513 if (mac_addr) { 514 sta = sta_info_get_bss(sdata, mac_addr); 515 /* 516 * The ASSOC test makes sure the driver is ready to 517 * receive the key. When wpa_supplicant has roamed 518 * using FT, it attempts to set the key before 519 * association has completed, this rejects that attempt 520 * so it will set the key again after association. 521 * 522 * TODO: accept the key if we have a station entry and 523 * add it to the device after the station. 524 */ 525 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 526 ieee80211_key_free_unused(key); 527 return -ENOENT; 528 } 529 } 530 531 switch (sdata->vif.type) { 532 case NL80211_IFTYPE_STATION: 533 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 534 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 535 break; 536 case NL80211_IFTYPE_AP: 537 case NL80211_IFTYPE_AP_VLAN: 538 /* Keys without a station are used for TX only */ 539 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 540 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 541 break; 542 case NL80211_IFTYPE_ADHOC: 543 /* no MFP (yet) */ 544 break; 545 case NL80211_IFTYPE_MESH_POINT: 546 #ifdef CONFIG_MAC80211_MESH 547 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 548 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 549 break; 550 #endif 551 case NL80211_IFTYPE_WDS: 552 case NL80211_IFTYPE_MONITOR: 553 case NL80211_IFTYPE_P2P_DEVICE: 554 case NL80211_IFTYPE_NAN: 555 case NL80211_IFTYPE_UNSPECIFIED: 556 case NUM_NL80211_IFTYPES: 557 case NL80211_IFTYPE_P2P_CLIENT: 558 case NL80211_IFTYPE_P2P_GO: 559 case NL80211_IFTYPE_OCB: 560 /* shouldn't happen */ 561 WARN_ON_ONCE(1); 562 break; 563 } 564 565 err = ieee80211_key_link(key, link, sta); 566 /* KRACK protection, shouldn't happen but just silently accept key */ 567 if (err == -EALREADY) 568 err = 0; 569 570 return err; 571 } 572 573 static struct ieee80211_key * 574 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 575 u8 key_idx, bool pairwise, const u8 *mac_addr) 576 { 577 struct ieee80211_local *local __maybe_unused = sdata->local; 578 struct ieee80211_link_data *link = &sdata->deflink; 579 struct ieee80211_key *key; 580 581 if (link_id >= 0) { 582 link = sdata_dereference(sdata->link[link_id], sdata); 583 if (!link) 584 return NULL; 585 } 586 587 if (mac_addr) { 588 struct sta_info *sta; 589 struct link_sta_info *link_sta; 590 591 sta = sta_info_get_bss(sdata, mac_addr); 592 if (!sta) 593 return NULL; 594 595 if (link_id >= 0) { 596 link_sta = rcu_dereference_check(sta->link[link_id], 597 lockdep_is_held(&local->hw.wiphy->mtx)); 598 if (!link_sta) 599 return NULL; 600 } else { 601 link_sta = &sta->deflink; 602 } 603 604 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 605 return wiphy_dereference(local->hw.wiphy, 606 sta->ptk[key_idx]); 607 608 if (!pairwise && 609 key_idx < NUM_DEFAULT_KEYS + 610 NUM_DEFAULT_MGMT_KEYS + 611 NUM_DEFAULT_BEACON_KEYS) 612 return wiphy_dereference(local->hw.wiphy, 613 link_sta->gtk[key_idx]); 614 615 return NULL; 616 } 617 618 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 619 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 620 621 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 622 if (key) 623 return key; 624 625 /* or maybe it was a WEP key */ 626 if (key_idx < NUM_DEFAULT_KEYS) 627 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 628 629 return NULL; 630 } 631 632 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 633 int link_id, u8 key_idx, bool pairwise, 634 const u8 *mac_addr) 635 { 636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 637 struct ieee80211_local *local = sdata->local; 638 struct ieee80211_key *key; 639 640 lockdep_assert_wiphy(local->hw.wiphy); 641 642 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 643 if (!key) 644 return -ENOENT; 645 646 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 647 648 return 0; 649 } 650 651 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 652 int link_id, u8 key_idx, bool pairwise, 653 const u8 *mac_addr, void *cookie, 654 void (*callback)(void *cookie, 655 struct key_params *params)) 656 { 657 struct ieee80211_sub_if_data *sdata; 658 u8 seq[6] = {0}; 659 struct key_params params; 660 struct ieee80211_key *key; 661 u64 pn64; 662 u32 iv32; 663 u16 iv16; 664 int err = -ENOENT; 665 struct ieee80211_key_seq kseq = {}; 666 667 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 668 669 rcu_read_lock(); 670 671 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 672 if (!key) 673 goto out; 674 675 memset(¶ms, 0, sizeof(params)); 676 677 params.cipher = key->conf.cipher; 678 679 switch (key->conf.cipher) { 680 case WLAN_CIPHER_SUITE_TKIP: 681 pn64 = atomic64_read(&key->conf.tx_pn); 682 iv32 = TKIP_PN_TO_IV32(pn64); 683 iv16 = TKIP_PN_TO_IV16(pn64); 684 685 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 686 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 687 drv_get_key_seq(sdata->local, key, &kseq); 688 iv32 = kseq.tkip.iv32; 689 iv16 = kseq.tkip.iv16; 690 } 691 692 seq[0] = iv16 & 0xff; 693 seq[1] = (iv16 >> 8) & 0xff; 694 seq[2] = iv32 & 0xff; 695 seq[3] = (iv32 >> 8) & 0xff; 696 seq[4] = (iv32 >> 16) & 0xff; 697 seq[5] = (iv32 >> 24) & 0xff; 698 params.seq = seq; 699 params.seq_len = 6; 700 break; 701 case WLAN_CIPHER_SUITE_CCMP: 702 case WLAN_CIPHER_SUITE_CCMP_256: 703 case WLAN_CIPHER_SUITE_AES_CMAC: 704 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 705 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 706 offsetof(typeof(kseq), aes_cmac)); 707 fallthrough; 708 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 709 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 710 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 711 offsetof(typeof(kseq), aes_gmac)); 712 fallthrough; 713 case WLAN_CIPHER_SUITE_GCMP: 714 case WLAN_CIPHER_SUITE_GCMP_256: 715 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 716 offsetof(typeof(kseq), gcmp)); 717 718 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 719 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 720 drv_get_key_seq(sdata->local, key, &kseq); 721 memcpy(seq, kseq.ccmp.pn, 6); 722 } else { 723 pn64 = atomic64_read(&key->conf.tx_pn); 724 seq[0] = pn64; 725 seq[1] = pn64 >> 8; 726 seq[2] = pn64 >> 16; 727 seq[3] = pn64 >> 24; 728 seq[4] = pn64 >> 32; 729 seq[5] = pn64 >> 40; 730 } 731 params.seq = seq; 732 params.seq_len = 6; 733 break; 734 default: 735 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 736 break; 737 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 738 break; 739 drv_get_key_seq(sdata->local, key, &kseq); 740 params.seq = kseq.hw.seq; 741 params.seq_len = kseq.hw.seq_len; 742 break; 743 } 744 745 callback(cookie, ¶ms); 746 err = 0; 747 748 out: 749 rcu_read_unlock(); 750 return err; 751 } 752 753 static int ieee80211_config_default_key(struct wiphy *wiphy, 754 struct net_device *dev, 755 int link_id, u8 key_idx, bool uni, 756 bool multi) 757 { 758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 759 struct ieee80211_link_data *link = 760 ieee80211_link_or_deflink(sdata, link_id, false); 761 762 if (IS_ERR(link)) 763 return PTR_ERR(link); 764 765 ieee80211_set_default_key(link, key_idx, uni, multi); 766 767 return 0; 768 } 769 770 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 771 struct net_device *dev, 772 int link_id, u8 key_idx) 773 { 774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 775 struct ieee80211_link_data *link = 776 ieee80211_link_or_deflink(sdata, link_id, true); 777 778 if (IS_ERR(link)) 779 return PTR_ERR(link); 780 781 ieee80211_set_default_mgmt_key(link, key_idx); 782 783 return 0; 784 } 785 786 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 787 struct net_device *dev, 788 int link_id, u8 key_idx) 789 { 790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 791 struct ieee80211_link_data *link = 792 ieee80211_link_or_deflink(sdata, link_id, true); 793 794 if (IS_ERR(link)) 795 return PTR_ERR(link); 796 797 ieee80211_set_default_beacon_key(link, key_idx); 798 799 return 0; 800 } 801 802 void sta_set_rate_info_tx(struct sta_info *sta, 803 const struct ieee80211_tx_rate *rate, 804 struct rate_info *rinfo) 805 { 806 rinfo->flags = 0; 807 if (rate->flags & IEEE80211_TX_RC_MCS) { 808 rinfo->flags |= RATE_INFO_FLAGS_MCS; 809 rinfo->mcs = rate->idx; 810 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 811 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 812 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 813 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 814 } else { 815 struct ieee80211_supported_band *sband; 816 817 sband = ieee80211_get_sband(sta->sdata); 818 WARN_ON_ONCE(sband && !sband->bitrates); 819 if (sband && sband->bitrates) 820 rinfo->legacy = sband->bitrates[rate->idx].bitrate; 821 } 822 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 823 rinfo->bw = RATE_INFO_BW_40; 824 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 825 rinfo->bw = RATE_INFO_BW_80; 826 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 827 rinfo->bw = RATE_INFO_BW_160; 828 else 829 rinfo->bw = RATE_INFO_BW_20; 830 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 831 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 832 } 833 834 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 835 int idx, u8 *mac, struct station_info *sinfo) 836 { 837 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 838 struct ieee80211_local *local = sdata->local; 839 struct sta_info *sta; 840 int ret = -ENOENT; 841 842 lockdep_assert_wiphy(local->hw.wiphy); 843 844 sta = sta_info_get_by_idx(sdata, idx); 845 if (sta) { 846 ret = 0; 847 memcpy(mac, sta->sta.addr, ETH_ALEN); 848 sta_set_sinfo(sta, sinfo, true); 849 } 850 851 return ret; 852 } 853 854 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 855 int idx, struct survey_info *survey) 856 { 857 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 858 859 return drv_get_survey(local, idx, survey); 860 } 861 862 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 863 const u8 *mac, struct station_info *sinfo) 864 { 865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 866 struct ieee80211_local *local = sdata->local; 867 struct sta_info *sta; 868 int ret = -ENOENT; 869 870 lockdep_assert_wiphy(local->hw.wiphy); 871 872 sta = sta_info_get_bss(sdata, mac); 873 if (sta) { 874 ret = 0; 875 sta_set_sinfo(sta, sinfo, true); 876 } 877 878 return ret; 879 } 880 881 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 882 struct cfg80211_chan_def *chandef) 883 { 884 struct ieee80211_local *local = wiphy_priv(wiphy); 885 struct ieee80211_sub_if_data *sdata; 886 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 887 int ret; 888 889 lockdep_assert_wiphy(local->hw.wiphy); 890 891 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper, 892 &chanreq.oper)) 893 return 0; 894 895 sdata = wiphy_dereference(local->hw.wiphy, 896 local->monitor_sdata); 897 if (!sdata) 898 goto done; 899 900 if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper, 901 &chanreq.oper)) 902 return 0; 903 904 ieee80211_link_release_channel(&sdata->deflink); 905 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 906 IEEE80211_CHANCTX_EXCLUSIVE); 907 if (ret) 908 return ret; 909 done: 910 local->monitor_chanreq = chanreq; 911 return 0; 912 } 913 914 static int 915 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 916 const u8 *resp, size_t resp_len, 917 const struct ieee80211_csa_settings *csa, 918 const struct ieee80211_color_change_settings *cca, 919 struct ieee80211_link_data *link) 920 { 921 struct probe_resp *new, *old; 922 923 if (!resp || !resp_len) 924 return 1; 925 926 old = sdata_dereference(link->u.ap.probe_resp, sdata); 927 928 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 929 if (!new) 930 return -ENOMEM; 931 932 new->len = resp_len; 933 memcpy(new->data, resp, resp_len); 934 935 if (csa) 936 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 937 csa->n_counter_offsets_presp * 938 sizeof(new->cntdwn_counter_offsets[0])); 939 else if (cca) 940 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 941 942 rcu_assign_pointer(link->u.ap.probe_resp, new); 943 if (old) 944 kfree_rcu(old, rcu_head); 945 946 return 0; 947 } 948 949 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 950 struct cfg80211_fils_discovery *params, 951 struct ieee80211_link_data *link, 952 struct ieee80211_bss_conf *link_conf, 953 u64 *changed) 954 { 955 struct fils_discovery_data *new, *old = NULL; 956 struct ieee80211_fils_discovery *fd; 957 958 if (!params->update) 959 return 0; 960 961 fd = &link_conf->fils_discovery; 962 fd->min_interval = params->min_interval; 963 fd->max_interval = params->max_interval; 964 965 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 966 if (old) 967 kfree_rcu(old, rcu_head); 968 969 if (params->tmpl && params->tmpl_len) { 970 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 971 if (!new) 972 return -ENOMEM; 973 new->len = params->tmpl_len; 974 memcpy(new->data, params->tmpl, params->tmpl_len); 975 rcu_assign_pointer(link->u.ap.fils_discovery, new); 976 } else { 977 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 978 } 979 980 *changed |= BSS_CHANGED_FILS_DISCOVERY; 981 return 0; 982 } 983 984 static int 985 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 986 struct cfg80211_unsol_bcast_probe_resp *params, 987 struct ieee80211_link_data *link, 988 struct ieee80211_bss_conf *link_conf, 989 u64 *changed) 990 { 991 struct unsol_bcast_probe_resp_data *new, *old = NULL; 992 993 if (!params->update) 994 return 0; 995 996 link_conf->unsol_bcast_probe_resp_interval = params->interval; 997 998 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 999 if (old) 1000 kfree_rcu(old, rcu_head); 1001 1002 if (params->tmpl && params->tmpl_len) { 1003 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 1004 if (!new) 1005 return -ENOMEM; 1006 new->len = params->tmpl_len; 1007 memcpy(new->data, params->tmpl, params->tmpl_len); 1008 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 1009 } else { 1010 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1011 } 1012 1013 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1014 return 0; 1015 } 1016 1017 static int ieee80211_set_ftm_responder_params( 1018 struct ieee80211_sub_if_data *sdata, 1019 const u8 *lci, size_t lci_len, 1020 const u8 *civicloc, size_t civicloc_len, 1021 struct ieee80211_bss_conf *link_conf) 1022 { 1023 struct ieee80211_ftm_responder_params *new, *old; 1024 u8 *pos; 1025 int len; 1026 1027 if (!lci_len && !civicloc_len) 1028 return 0; 1029 1030 old = link_conf->ftmr_params; 1031 len = lci_len + civicloc_len; 1032 1033 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1034 if (!new) 1035 return -ENOMEM; 1036 1037 pos = (u8 *)(new + 1); 1038 if (lci_len) { 1039 new->lci_len = lci_len; 1040 new->lci = pos; 1041 memcpy(pos, lci, lci_len); 1042 pos += lci_len; 1043 } 1044 1045 if (civicloc_len) { 1046 new->civicloc_len = civicloc_len; 1047 new->civicloc = pos; 1048 memcpy(pos, civicloc, civicloc_len); 1049 pos += civicloc_len; 1050 } 1051 1052 link_conf->ftmr_params = new; 1053 kfree(old); 1054 1055 return 0; 1056 } 1057 1058 static int 1059 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1060 struct cfg80211_mbssid_elems *src) 1061 { 1062 int i, offset = 0; 1063 1064 for (i = 0; i < src->cnt; i++) { 1065 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1066 dst->elem[i].len = src->elem[i].len; 1067 dst->elem[i].data = pos + offset; 1068 offset += dst->elem[i].len; 1069 } 1070 dst->cnt = src->cnt; 1071 1072 return offset; 1073 } 1074 1075 static int 1076 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1077 struct cfg80211_rnr_elems *src) 1078 { 1079 int i, offset = 0; 1080 1081 for (i = 0; i < src->cnt; i++) { 1082 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1083 dst->elem[i].len = src->elem[i].len; 1084 dst->elem[i].data = pos + offset; 1085 offset += dst->elem[i].len; 1086 } 1087 dst->cnt = src->cnt; 1088 1089 return offset; 1090 } 1091 1092 static int 1093 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1094 struct ieee80211_link_data *link, 1095 struct cfg80211_beacon_data *params, 1096 const struct ieee80211_csa_settings *csa, 1097 const struct ieee80211_color_change_settings *cca, 1098 u64 *changed) 1099 { 1100 struct cfg80211_mbssid_elems *mbssid = NULL; 1101 struct cfg80211_rnr_elems *rnr = NULL; 1102 struct beacon_data *new, *old; 1103 int new_head_len, new_tail_len; 1104 int size, err; 1105 u64 _changed = BSS_CHANGED_BEACON; 1106 struct ieee80211_bss_conf *link_conf = link->conf; 1107 1108 old = sdata_dereference(link->u.ap.beacon, sdata); 1109 1110 /* Need to have a beacon head if we don't have one yet */ 1111 if (!params->head && !old) 1112 return -EINVAL; 1113 1114 /* new or old head? */ 1115 if (params->head) 1116 new_head_len = params->head_len; 1117 else 1118 new_head_len = old->head_len; 1119 1120 /* new or old tail? */ 1121 if (params->tail || !old) 1122 /* params->tail_len will be zero for !params->tail */ 1123 new_tail_len = params->tail_len; 1124 else 1125 new_tail_len = old->tail_len; 1126 1127 size = sizeof(*new) + new_head_len + new_tail_len; 1128 1129 /* new or old multiple BSSID elements? */ 1130 if (params->mbssid_ies) { 1131 mbssid = params->mbssid_ies; 1132 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1133 if (params->rnr_ies) { 1134 rnr = params->rnr_ies; 1135 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1136 } 1137 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1138 mbssid->cnt); 1139 } else if (old && old->mbssid_ies) { 1140 mbssid = old->mbssid_ies; 1141 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1142 if (old && old->rnr_ies) { 1143 rnr = old->rnr_ies; 1144 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1145 } 1146 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1147 mbssid->cnt); 1148 } 1149 1150 new = kzalloc(size, GFP_KERNEL); 1151 if (!new) 1152 return -ENOMEM; 1153 1154 /* start filling the new info now */ 1155 1156 /* 1157 * pointers go into the block we allocated, 1158 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1159 */ 1160 new->head = ((u8 *) new) + sizeof(*new); 1161 new->tail = new->head + new_head_len; 1162 new->head_len = new_head_len; 1163 new->tail_len = new_tail_len; 1164 /* copy in optional mbssid_ies */ 1165 if (mbssid) { 1166 u8 *pos = new->tail + new->tail_len; 1167 1168 new->mbssid_ies = (void *)pos; 1169 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1170 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1171 mbssid); 1172 if (rnr) { 1173 new->rnr_ies = (void *)pos; 1174 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1175 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1176 } 1177 /* update bssid_indicator */ 1178 link_conf->bssid_indicator = 1179 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1180 } 1181 1182 if (csa) { 1183 new->cntdwn_current_counter = csa->count; 1184 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1185 csa->n_counter_offsets_beacon * 1186 sizeof(new->cntdwn_counter_offsets[0])); 1187 } else if (cca) { 1188 new->cntdwn_current_counter = cca->count; 1189 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1190 } 1191 1192 /* copy in head */ 1193 if (params->head) 1194 memcpy(new->head, params->head, new_head_len); 1195 else 1196 memcpy(new->head, old->head, new_head_len); 1197 1198 /* copy in optional tail */ 1199 if (params->tail) 1200 memcpy(new->tail, params->tail, new_tail_len); 1201 else 1202 if (old) 1203 memcpy(new->tail, old->tail, new_tail_len); 1204 1205 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1206 params->probe_resp_len, csa, cca, link); 1207 if (err < 0) { 1208 kfree(new); 1209 return err; 1210 } 1211 if (err == 0) 1212 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1213 1214 if (params->ftm_responder != -1) { 1215 link_conf->ftm_responder = params->ftm_responder; 1216 err = ieee80211_set_ftm_responder_params(sdata, 1217 params->lci, 1218 params->lci_len, 1219 params->civicloc, 1220 params->civicloc_len, 1221 link_conf); 1222 1223 if (err < 0) { 1224 kfree(new); 1225 return err; 1226 } 1227 1228 _changed |= BSS_CHANGED_FTM_RESPONDER; 1229 } 1230 1231 rcu_assign_pointer(link->u.ap.beacon, new); 1232 sdata->u.ap.active = true; 1233 1234 if (old) 1235 kfree_rcu(old, rcu_head); 1236 1237 *changed |= _changed; 1238 return 0; 1239 } 1240 1241 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata) 1242 { 1243 struct ieee80211_link_data *link; 1244 u8 link_id, num = 0; 1245 1246 if (sdata->vif.type != NL80211_IFTYPE_AP && 1247 sdata->vif.type != NL80211_IFTYPE_P2P_GO) 1248 return num; 1249 1250 if (!sdata->vif.valid_links) 1251 return num; 1252 1253 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 1254 link = sdata_dereference(sdata->link[link_id], sdata); 1255 if (!link) 1256 continue; 1257 1258 if (sdata_dereference(link->u.ap.beacon, sdata)) 1259 num++; 1260 } 1261 1262 return num; 1263 } 1264 1265 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1266 struct cfg80211_ap_settings *params) 1267 { 1268 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1269 struct ieee80211_local *local = sdata->local; 1270 struct beacon_data *old; 1271 struct ieee80211_sub_if_data *vlan; 1272 u64 changed = BSS_CHANGED_BEACON_INT | 1273 BSS_CHANGED_BEACON_ENABLED | 1274 BSS_CHANGED_BEACON | 1275 BSS_CHANGED_P2P_PS | 1276 BSS_CHANGED_TXPOWER | 1277 BSS_CHANGED_TWT; 1278 int i, err; 1279 int prev_beacon_int; 1280 unsigned int link_id = params->beacon.link_id; 1281 struct ieee80211_link_data *link; 1282 struct ieee80211_bss_conf *link_conf; 1283 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 1284 1285 lockdep_assert_wiphy(local->hw.wiphy); 1286 1287 link = sdata_dereference(sdata->link[link_id], sdata); 1288 if (!link) 1289 return -ENOLINK; 1290 1291 link_conf = link->conf; 1292 1293 old = sdata_dereference(link->u.ap.beacon, sdata); 1294 if (old) 1295 return -EALREADY; 1296 1297 if (params->smps_mode != NL80211_SMPS_OFF) 1298 return -EOPNOTSUPP; 1299 1300 link->smps_mode = IEEE80211_SMPS_OFF; 1301 1302 link->needed_rx_chains = sdata->local->rx_chains; 1303 1304 prev_beacon_int = link_conf->beacon_int; 1305 link_conf->beacon_int = params->beacon_interval; 1306 1307 if (params->ht_cap) 1308 link_conf->ht_ldpc = 1309 params->ht_cap->cap_info & 1310 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1311 1312 if (params->vht_cap) { 1313 link_conf->vht_ldpc = 1314 params->vht_cap->vht_cap_info & 1315 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1316 link_conf->vht_su_beamformer = 1317 params->vht_cap->vht_cap_info & 1318 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1319 link_conf->vht_su_beamformee = 1320 params->vht_cap->vht_cap_info & 1321 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1322 link_conf->vht_mu_beamformer = 1323 params->vht_cap->vht_cap_info & 1324 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1325 link_conf->vht_mu_beamformee = 1326 params->vht_cap->vht_cap_info & 1327 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1328 } 1329 1330 if (params->he_cap && params->he_oper) { 1331 link_conf->he_support = true; 1332 link_conf->htc_trig_based_pkt_ext = 1333 le32_get_bits(params->he_oper->he_oper_params, 1334 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1335 link_conf->frame_time_rts_th = 1336 le32_get_bits(params->he_oper->he_oper_params, 1337 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1338 changed |= BSS_CHANGED_HE_OBSS_PD; 1339 1340 if (params->beacon.he_bss_color.enabled) 1341 changed |= BSS_CHANGED_HE_BSS_COLOR; 1342 } 1343 1344 if (params->he_cap) { 1345 link_conf->he_ldpc = 1346 params->he_cap->phy_cap_info[1] & 1347 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1348 link_conf->he_su_beamformer = 1349 params->he_cap->phy_cap_info[3] & 1350 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1351 link_conf->he_su_beamformee = 1352 params->he_cap->phy_cap_info[4] & 1353 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1354 link_conf->he_mu_beamformer = 1355 params->he_cap->phy_cap_info[4] & 1356 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1357 link_conf->he_full_ul_mumimo = 1358 params->he_cap->phy_cap_info[2] & 1359 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1360 } 1361 1362 if (params->eht_cap) { 1363 if (!link_conf->he_support) 1364 return -EOPNOTSUPP; 1365 1366 link_conf->eht_support = true; 1367 1368 link_conf->eht_su_beamformer = 1369 params->eht_cap->fixed.phy_cap_info[0] & 1370 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1371 link_conf->eht_su_beamformee = 1372 params->eht_cap->fixed.phy_cap_info[0] & 1373 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1374 link_conf->eht_mu_beamformer = 1375 params->eht_cap->fixed.phy_cap_info[7] & 1376 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1377 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1378 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1379 link_conf->eht_80mhz_full_bw_ul_mumimo = 1380 params->eht_cap->fixed.phy_cap_info[7] & 1381 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ | 1382 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ | 1383 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ); 1384 } else { 1385 link_conf->eht_su_beamformer = false; 1386 link_conf->eht_su_beamformee = false; 1387 link_conf->eht_mu_beamformer = false; 1388 } 1389 1390 if (sdata->vif.type == NL80211_IFTYPE_AP && 1391 params->mbssid_config.tx_wdev) { 1392 err = ieee80211_set_ap_mbssid_options(sdata, 1393 params->mbssid_config, 1394 link_conf); 1395 if (err) 1396 return err; 1397 } 1398 1399 err = ieee80211_link_use_channel(link, &chanreq, 1400 IEEE80211_CHANCTX_SHARED); 1401 if (!err) 1402 ieee80211_link_copy_chanctx_to_vlans(link, false); 1403 if (err) { 1404 link_conf->beacon_int = prev_beacon_int; 1405 return err; 1406 } 1407 1408 /* 1409 * Apply control port protocol, this allows us to 1410 * not encrypt dynamic WEP control frames. 1411 */ 1412 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1413 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1414 sdata->control_port_over_nl80211 = 1415 params->crypto.control_port_over_nl80211; 1416 sdata->control_port_no_preauth = 1417 params->crypto.control_port_no_preauth; 1418 1419 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1420 vlan->control_port_protocol = 1421 params->crypto.control_port_ethertype; 1422 vlan->control_port_no_encrypt = 1423 params->crypto.control_port_no_encrypt; 1424 vlan->control_port_over_nl80211 = 1425 params->crypto.control_port_over_nl80211; 1426 vlan->control_port_no_preauth = 1427 params->crypto.control_port_no_preauth; 1428 } 1429 1430 link_conf->dtim_period = params->dtim_period; 1431 link_conf->enable_beacon = true; 1432 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1433 link_conf->twt_responder = params->twt_responder; 1434 link_conf->he_obss_pd = params->he_obss_pd; 1435 link_conf->he_bss_color = params->beacon.he_bss_color; 1436 sdata->vif.cfg.s1g = params->chandef.chan->band == 1437 NL80211_BAND_S1GHZ; 1438 1439 sdata->vif.cfg.ssid_len = params->ssid_len; 1440 if (params->ssid_len) 1441 memcpy(sdata->vif.cfg.ssid, params->ssid, 1442 params->ssid_len); 1443 link_conf->hidden_ssid = 1444 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1445 1446 memset(&link_conf->p2p_noa_attr, 0, 1447 sizeof(link_conf->p2p_noa_attr)); 1448 link_conf->p2p_noa_attr.oppps_ctwindow = 1449 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1450 if (params->p2p_opp_ps) 1451 link_conf->p2p_noa_attr.oppps_ctwindow |= 1452 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1453 1454 sdata->beacon_rate_set = false; 1455 if (wiphy_ext_feature_isset(local->hw.wiphy, 1456 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1457 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1458 sdata->beacon_rateidx_mask[i] = 1459 params->beacon_rate.control[i].legacy; 1460 if (sdata->beacon_rateidx_mask[i]) 1461 sdata->beacon_rate_set = true; 1462 } 1463 } 1464 1465 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1466 link_conf->beacon_tx_rate = params->beacon_rate; 1467 1468 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1469 &changed); 1470 if (err < 0) 1471 goto error; 1472 1473 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1474 link, link_conf, &changed); 1475 if (err < 0) 1476 goto error; 1477 1478 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1479 ¶ms->unsol_bcast_probe_resp, 1480 link, link_conf, &changed); 1481 if (err < 0) 1482 goto error; 1483 1484 err = drv_start_ap(sdata->local, sdata, link_conf); 1485 if (err) { 1486 old = sdata_dereference(link->u.ap.beacon, sdata); 1487 1488 if (old) 1489 kfree_rcu(old, rcu_head); 1490 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1491 1492 if (ieee80211_num_beaconing_links(sdata) == 0) 1493 sdata->u.ap.active = false; 1494 1495 goto error; 1496 } 1497 1498 ieee80211_recalc_dtim(local, sdata); 1499 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1500 ieee80211_link_info_change_notify(sdata, link, changed); 1501 1502 if (ieee80211_num_beaconing_links(sdata) <= 1) 1503 netif_carrier_on(dev); 1504 1505 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1506 netif_carrier_on(vlan->dev); 1507 1508 return 0; 1509 1510 error: 1511 ieee80211_link_release_channel(link); 1512 1513 return err; 1514 } 1515 1516 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1517 struct cfg80211_ap_update *params) 1518 1519 { 1520 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1521 struct ieee80211_link_data *link; 1522 struct cfg80211_beacon_data *beacon = ¶ms->beacon; 1523 struct beacon_data *old; 1524 int err; 1525 struct ieee80211_bss_conf *link_conf; 1526 u64 changed = 0; 1527 1528 lockdep_assert_wiphy(wiphy); 1529 1530 link = sdata_dereference(sdata->link[beacon->link_id], sdata); 1531 if (!link) 1532 return -ENOLINK; 1533 1534 link_conf = link->conf; 1535 1536 /* don't allow changing the beacon while a countdown is in place - offset 1537 * of channel switch counter may change 1538 */ 1539 if (link_conf->csa_active || link_conf->color_change_active) 1540 return -EBUSY; 1541 1542 old = sdata_dereference(link->u.ap.beacon, sdata); 1543 if (!old) 1544 return -ENOENT; 1545 1546 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL, 1547 &changed); 1548 if (err < 0) 1549 return err; 1550 1551 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery, 1552 link, link_conf, &changed); 1553 if (err < 0) 1554 return err; 1555 1556 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1557 ¶ms->unsol_bcast_probe_resp, 1558 link, link_conf, &changed); 1559 if (err < 0) 1560 return err; 1561 1562 if (beacon->he_bss_color_valid && 1563 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1564 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; 1565 changed |= BSS_CHANGED_HE_BSS_COLOR; 1566 } 1567 1568 ieee80211_link_info_change_notify(sdata, link, changed); 1569 return 0; 1570 } 1571 1572 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1573 { 1574 if (!link->u.ap.next_beacon) 1575 return; 1576 1577 kfree(link->u.ap.next_beacon->mbssid_ies); 1578 kfree(link->u.ap.next_beacon->rnr_ies); 1579 kfree(link->u.ap.next_beacon); 1580 link->u.ap.next_beacon = NULL; 1581 } 1582 1583 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1584 unsigned int link_id) 1585 { 1586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1587 struct ieee80211_sub_if_data *vlan; 1588 struct ieee80211_local *local = sdata->local; 1589 struct beacon_data *old_beacon; 1590 struct probe_resp *old_probe_resp; 1591 struct fils_discovery_data *old_fils_discovery; 1592 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1593 struct cfg80211_chan_def chandef; 1594 struct ieee80211_link_data *link = 1595 sdata_dereference(sdata->link[link_id], sdata); 1596 struct ieee80211_bss_conf *link_conf = link->conf; 1597 LIST_HEAD(keys); 1598 1599 lockdep_assert_wiphy(local->hw.wiphy); 1600 1601 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1602 if (!old_beacon) 1603 return -ENOENT; 1604 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1605 sdata); 1606 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1607 sdata); 1608 old_unsol_bcast_probe_resp = 1609 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1610 sdata); 1611 1612 /* abort any running channel switch or color change */ 1613 link_conf->csa_active = false; 1614 link_conf->color_change_active = false; 1615 ieee80211_vif_unblock_queues_csa(sdata); 1616 1617 ieee80211_free_next_beacon(link); 1618 1619 /* turn off carrier for this interface and dependent VLANs */ 1620 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1621 netif_carrier_off(vlan->dev); 1622 1623 if (ieee80211_num_beaconing_links(sdata) <= 1) { 1624 netif_carrier_off(dev); 1625 sdata->u.ap.active = false; 1626 } 1627 1628 /* remove beacon and probe response */ 1629 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1630 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1631 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1632 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1633 kfree_rcu(old_beacon, rcu_head); 1634 if (old_probe_resp) 1635 kfree_rcu(old_probe_resp, rcu_head); 1636 if (old_fils_discovery) 1637 kfree_rcu(old_fils_discovery, rcu_head); 1638 if (old_unsol_bcast_probe_resp) 1639 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1640 1641 kfree(link_conf->ftmr_params); 1642 link_conf->ftmr_params = NULL; 1643 1644 sdata->vif.mbssid_tx_vif = NULL; 1645 link_conf->bssid_index = 0; 1646 link_conf->nontransmitted = false; 1647 link_conf->ema_ap = false; 1648 link_conf->bssid_indicator = 0; 1649 1650 __sta_info_flush(sdata, true, link_id); 1651 1652 ieee80211_remove_link_keys(link, &keys); 1653 if (!list_empty(&keys)) { 1654 synchronize_net(); 1655 ieee80211_free_key_list(local, &keys); 1656 } 1657 1658 link_conf->enable_beacon = false; 1659 sdata->beacon_rate_set = false; 1660 sdata->vif.cfg.ssid_len = 0; 1661 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1662 ieee80211_link_info_change_notify(sdata, link, 1663 BSS_CHANGED_BEACON_ENABLED); 1664 1665 if (sdata->wdev.cac_started) { 1666 chandef = link_conf->chanreq.oper; 1667 wiphy_delayed_work_cancel(wiphy, &sdata->dfs_cac_timer_work); 1668 cfg80211_cac_event(sdata->dev, &chandef, 1669 NL80211_RADAR_CAC_ABORTED, 1670 GFP_KERNEL); 1671 } 1672 1673 drv_stop_ap(sdata->local, sdata, link_conf); 1674 1675 /* free all potentially still buffered bcast frames */ 1676 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1677 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1678 1679 ieee80211_link_copy_chanctx_to_vlans(link, true); 1680 ieee80211_link_release_channel(link); 1681 1682 return 0; 1683 } 1684 1685 static int sta_apply_auth_flags(struct ieee80211_local *local, 1686 struct sta_info *sta, 1687 u32 mask, u32 set) 1688 { 1689 int ret; 1690 1691 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1692 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1693 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1694 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1695 if (ret) 1696 return ret; 1697 } 1698 1699 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1700 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1701 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1702 /* 1703 * When peer becomes associated, init rate control as 1704 * well. Some drivers require rate control initialized 1705 * before drv_sta_state() is called. 1706 */ 1707 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1708 rate_control_rate_init(sta); 1709 1710 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1711 if (ret) 1712 return ret; 1713 } 1714 1715 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1716 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1717 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1718 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1719 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1720 else 1721 ret = 0; 1722 if (ret) 1723 return ret; 1724 } 1725 1726 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1727 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1728 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1729 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1730 if (ret) 1731 return ret; 1732 } 1733 1734 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1735 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1736 test_sta_flag(sta, WLAN_STA_AUTH)) { 1737 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1738 if (ret) 1739 return ret; 1740 } 1741 1742 return 0; 1743 } 1744 1745 static void sta_apply_mesh_params(struct ieee80211_local *local, 1746 struct sta_info *sta, 1747 struct station_parameters *params) 1748 { 1749 #ifdef CONFIG_MAC80211_MESH 1750 struct ieee80211_sub_if_data *sdata = sta->sdata; 1751 u64 changed = 0; 1752 1753 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1754 switch (params->plink_state) { 1755 case NL80211_PLINK_ESTAB: 1756 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1757 changed = mesh_plink_inc_estab_count(sdata); 1758 sta->mesh->plink_state = params->plink_state; 1759 sta->mesh->aid = params->peer_aid; 1760 1761 ieee80211_mps_sta_status_update(sta); 1762 changed |= ieee80211_mps_set_sta_local_pm(sta, 1763 sdata->u.mesh.mshcfg.power_mode); 1764 1765 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1766 /* init at low value */ 1767 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1768 1769 break; 1770 case NL80211_PLINK_LISTEN: 1771 case NL80211_PLINK_BLOCKED: 1772 case NL80211_PLINK_OPN_SNT: 1773 case NL80211_PLINK_OPN_RCVD: 1774 case NL80211_PLINK_CNF_RCVD: 1775 case NL80211_PLINK_HOLDING: 1776 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1777 changed = mesh_plink_dec_estab_count(sdata); 1778 sta->mesh->plink_state = params->plink_state; 1779 1780 ieee80211_mps_sta_status_update(sta); 1781 changed |= ieee80211_mps_set_sta_local_pm(sta, 1782 NL80211_MESH_POWER_UNKNOWN); 1783 break; 1784 default: 1785 /* nothing */ 1786 break; 1787 } 1788 } 1789 1790 switch (params->plink_action) { 1791 case NL80211_PLINK_ACTION_NO_ACTION: 1792 /* nothing */ 1793 break; 1794 case NL80211_PLINK_ACTION_OPEN: 1795 changed |= mesh_plink_open(sta); 1796 break; 1797 case NL80211_PLINK_ACTION_BLOCK: 1798 changed |= mesh_plink_block(sta); 1799 break; 1800 } 1801 1802 if (params->local_pm) 1803 changed |= ieee80211_mps_set_sta_local_pm(sta, 1804 params->local_pm); 1805 1806 ieee80211_mbss_info_change_notify(sdata, changed); 1807 #endif 1808 } 1809 1810 enum sta_link_apply_mode { 1811 STA_LINK_MODE_NEW, 1812 STA_LINK_MODE_STA_MODIFY, 1813 STA_LINK_MODE_LINK_MODIFY, 1814 }; 1815 1816 static int sta_link_apply_parameters(struct ieee80211_local *local, 1817 struct sta_info *sta, 1818 enum sta_link_apply_mode mode, 1819 struct link_station_parameters *params) 1820 { 1821 struct ieee80211_supported_band *sband; 1822 struct ieee80211_sub_if_data *sdata = sta->sdata; 1823 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1824 struct ieee80211_link_data *link = 1825 sdata_dereference(sdata->link[link_id], sdata); 1826 struct link_sta_info *link_sta = 1827 rcu_dereference_protected(sta->link[link_id], 1828 lockdep_is_held(&local->hw.wiphy->mtx)); 1829 bool changes = params->link_mac || 1830 params->txpwr_set || 1831 params->supported_rates_len || 1832 params->ht_capa || 1833 params->vht_capa || 1834 params->he_capa || 1835 params->eht_capa || 1836 params->opmode_notif_used; 1837 1838 switch (mode) { 1839 case STA_LINK_MODE_NEW: 1840 if (!params->link_mac) 1841 return -EINVAL; 1842 break; 1843 case STA_LINK_MODE_LINK_MODIFY: 1844 break; 1845 case STA_LINK_MODE_STA_MODIFY: 1846 if (params->link_id >= 0) 1847 break; 1848 if (!changes) 1849 return 0; 1850 break; 1851 } 1852 1853 if (!link || !link_sta) 1854 return -EINVAL; 1855 1856 sband = ieee80211_get_link_sband(link); 1857 if (!sband) 1858 return -EINVAL; 1859 1860 if (params->link_mac) { 1861 if (mode == STA_LINK_MODE_NEW) { 1862 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1863 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1864 } else if (!ether_addr_equal(link_sta->addr, 1865 params->link_mac)) { 1866 return -EINVAL; 1867 } 1868 } 1869 1870 if (params->txpwr_set) { 1871 int ret; 1872 1873 link_sta->pub->txpwr.type = params->txpwr.type; 1874 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1875 link_sta->pub->txpwr.power = params->txpwr.power; 1876 ret = drv_sta_set_txpwr(local, sdata, sta); 1877 if (ret) 1878 return ret; 1879 } 1880 1881 if (params->supported_rates && 1882 params->supported_rates_len) { 1883 ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 1884 sband, params->supported_rates, 1885 params->supported_rates_len, 1886 &link_sta->pub->supp_rates[sband->band]); 1887 } 1888 1889 if (params->ht_capa) 1890 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1891 params->ht_capa, link_sta); 1892 1893 /* VHT can override some HT caps such as the A-MSDU max length */ 1894 if (params->vht_capa) 1895 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1896 params->vht_capa, NULL, 1897 link_sta); 1898 1899 if (params->he_capa) 1900 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1901 (void *)params->he_capa, 1902 params->he_capa_len, 1903 (void *)params->he_6ghz_capa, 1904 link_sta); 1905 1906 if (params->he_capa && params->eht_capa) 1907 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1908 (u8 *)params->he_capa, 1909 params->he_capa_len, 1910 params->eht_capa, 1911 params->eht_capa_len, 1912 link_sta); 1913 1914 if (params->opmode_notif_used) { 1915 /* returned value is only needed for rc update, but the 1916 * rc isn't initialized here yet, so ignore it 1917 */ 1918 __ieee80211_vht_handle_opmode(sdata, link_sta, 1919 params->opmode_notif, 1920 sband->band); 1921 } 1922 1923 ieee80211_sta_init_nss(link_sta); 1924 1925 return 0; 1926 } 1927 1928 static int sta_apply_parameters(struct ieee80211_local *local, 1929 struct sta_info *sta, 1930 struct station_parameters *params) 1931 { 1932 struct ieee80211_sub_if_data *sdata = sta->sdata; 1933 u32 mask, set; 1934 int ret = 0; 1935 1936 mask = params->sta_flags_mask; 1937 set = params->sta_flags_set; 1938 1939 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1940 /* 1941 * In mesh mode, ASSOCIATED isn't part of the nl80211 1942 * API but must follow AUTHENTICATED for driver state. 1943 */ 1944 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1945 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1946 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1947 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1948 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1949 /* 1950 * TDLS -- everything follows authorized, but 1951 * only becoming authorized is possible, not 1952 * going back 1953 */ 1954 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1955 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1956 BIT(NL80211_STA_FLAG_ASSOCIATED); 1957 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1958 BIT(NL80211_STA_FLAG_ASSOCIATED); 1959 } 1960 } 1961 1962 if (mask & BIT(NL80211_STA_FLAG_WME) && 1963 local->hw.queues >= IEEE80211_NUM_ACS) 1964 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1965 1966 /* auth flags will be set later for TDLS, 1967 * and for unassociated stations that move to associated */ 1968 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1969 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1970 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1971 ret = sta_apply_auth_flags(local, sta, mask, set); 1972 if (ret) 1973 return ret; 1974 } 1975 1976 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1977 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1978 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1979 else 1980 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1981 } 1982 1983 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1984 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1985 if (set & BIT(NL80211_STA_FLAG_MFP)) 1986 set_sta_flag(sta, WLAN_STA_MFP); 1987 else 1988 clear_sta_flag(sta, WLAN_STA_MFP); 1989 } 1990 1991 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1992 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1993 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1994 else 1995 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1996 } 1997 1998 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU)) 1999 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU); 2000 2001 /* mark TDLS channel switch support, if the AP allows it */ 2002 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2003 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 2004 params->ext_capab_len >= 4 && 2005 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 2006 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 2007 2008 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2009 !sdata->u.mgd.tdls_wider_bw_prohibited && 2010 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 2011 params->ext_capab_len >= 8 && 2012 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 2013 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 2014 2015 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 2016 sta->sta.uapsd_queues = params->uapsd_queues; 2017 sta->sta.max_sp = params->max_sp; 2018 } 2019 2020 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 2021 params->ext_capab_len); 2022 2023 /* 2024 * cfg80211 validates this (1-2007) and allows setting the AID 2025 * only when creating a new station entry 2026 */ 2027 if (params->aid) 2028 sta->sta.aid = params->aid; 2029 2030 /* 2031 * Some of the following updates would be racy if called on an 2032 * existing station, via ieee80211_change_station(). However, 2033 * all such changes are rejected by cfg80211 except for updates 2034 * changing the supported rates on an existing but not yet used 2035 * TDLS peer. 2036 */ 2037 2038 if (params->listen_interval >= 0) 2039 sta->listen_interval = params->listen_interval; 2040 2041 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY, 2042 ¶ms->link_sta_params); 2043 if (ret) 2044 return ret; 2045 2046 if (params->support_p2p_ps >= 0) 2047 sta->sta.support_p2p_ps = params->support_p2p_ps; 2048 2049 if (ieee80211_vif_is_mesh(&sdata->vif)) 2050 sta_apply_mesh_params(local, sta, params); 2051 2052 if (params->airtime_weight) 2053 sta->airtime_weight = params->airtime_weight; 2054 2055 /* set the STA state after all sta info from usermode has been set */ 2056 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 2057 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 2058 ret = sta_apply_auth_flags(local, sta, mask, set); 2059 if (ret) 2060 return ret; 2061 } 2062 2063 /* Mark the STA as MLO if MLD MAC address is available */ 2064 if (params->link_sta_params.mld_mac) 2065 sta->sta.mlo = true; 2066 2067 return 0; 2068 } 2069 2070 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 2071 const u8 *mac, 2072 struct station_parameters *params) 2073 { 2074 struct ieee80211_local *local = wiphy_priv(wiphy); 2075 struct sta_info *sta; 2076 struct ieee80211_sub_if_data *sdata; 2077 int err; 2078 2079 lockdep_assert_wiphy(local->hw.wiphy); 2080 2081 if (params->vlan) { 2082 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2083 2084 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2085 sdata->vif.type != NL80211_IFTYPE_AP) 2086 return -EINVAL; 2087 } else 2088 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2089 2090 if (ether_addr_equal(mac, sdata->vif.addr)) 2091 return -EINVAL; 2092 2093 if (!is_valid_ether_addr(mac)) 2094 return -EINVAL; 2095 2096 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2097 sdata->vif.type == NL80211_IFTYPE_STATION && 2098 !sdata->u.mgd.associated) 2099 return -EINVAL; 2100 2101 /* 2102 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2103 * but we need to have a link_mac in that case as well, so use the 2104 * STA's MAC address in that case. 2105 */ 2106 if (params->link_sta_params.link_id >= 0) 2107 sta = sta_info_alloc_with_link(sdata, mac, 2108 params->link_sta_params.link_id, 2109 params->link_sta_params.link_mac ?: mac, 2110 GFP_KERNEL); 2111 else 2112 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2113 2114 if (!sta) 2115 return -ENOMEM; 2116 2117 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2118 sta->sta.tdls = true; 2119 2120 /* Though the mutex is not needed here (since the station is not 2121 * visible yet), sta_apply_parameters (and inner functions) require 2122 * the mutex due to other paths. 2123 */ 2124 err = sta_apply_parameters(local, sta, params); 2125 if (err) { 2126 sta_info_free(local, sta); 2127 return err; 2128 } 2129 2130 /* 2131 * for TDLS and for unassociated station, rate control should be 2132 * initialized only when rates are known and station is marked 2133 * authorized/associated 2134 */ 2135 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2136 test_sta_flag(sta, WLAN_STA_ASSOC)) 2137 rate_control_rate_init(sta); 2138 2139 return sta_info_insert(sta); 2140 } 2141 2142 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2143 struct station_del_parameters *params) 2144 { 2145 struct ieee80211_sub_if_data *sdata; 2146 2147 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2148 2149 if (params->mac) 2150 return sta_info_destroy_addr_bss(sdata, params->mac); 2151 2152 sta_info_flush(sdata, params->link_id); 2153 return 0; 2154 } 2155 2156 static int ieee80211_change_station(struct wiphy *wiphy, 2157 struct net_device *dev, const u8 *mac, 2158 struct station_parameters *params) 2159 { 2160 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2161 struct ieee80211_local *local = wiphy_priv(wiphy); 2162 struct sta_info *sta; 2163 struct ieee80211_sub_if_data *vlansdata; 2164 enum cfg80211_station_type statype; 2165 int err; 2166 2167 lockdep_assert_wiphy(local->hw.wiphy); 2168 2169 sta = sta_info_get_bss(sdata, mac); 2170 if (!sta) 2171 return -ENOENT; 2172 2173 switch (sdata->vif.type) { 2174 case NL80211_IFTYPE_MESH_POINT: 2175 if (sdata->u.mesh.user_mpm) 2176 statype = CFG80211_STA_MESH_PEER_USER; 2177 else 2178 statype = CFG80211_STA_MESH_PEER_KERNEL; 2179 break; 2180 case NL80211_IFTYPE_ADHOC: 2181 statype = CFG80211_STA_IBSS; 2182 break; 2183 case NL80211_IFTYPE_STATION: 2184 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2185 statype = CFG80211_STA_AP_STA; 2186 break; 2187 } 2188 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2189 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2190 else 2191 statype = CFG80211_STA_TDLS_PEER_SETUP; 2192 break; 2193 case NL80211_IFTYPE_AP: 2194 case NL80211_IFTYPE_AP_VLAN: 2195 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2196 statype = CFG80211_STA_AP_CLIENT; 2197 else 2198 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2199 break; 2200 default: 2201 return -EOPNOTSUPP; 2202 } 2203 2204 err = cfg80211_check_station_change(wiphy, params, statype); 2205 if (err) 2206 return err; 2207 2208 if (params->vlan && params->vlan != sta->sdata->dev) { 2209 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2210 2211 if (params->vlan->ieee80211_ptr->use_4addr) { 2212 if (vlansdata->u.vlan.sta) 2213 return -EBUSY; 2214 2215 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2216 __ieee80211_check_fast_rx_iface(vlansdata); 2217 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2218 } 2219 2220 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2221 sta->sdata->u.vlan.sta) 2222 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2223 2224 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2225 ieee80211_vif_dec_num_mcast(sta->sdata); 2226 2227 sta->sdata = vlansdata; 2228 ieee80211_check_fast_rx(sta); 2229 ieee80211_check_fast_xmit(sta); 2230 2231 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2232 ieee80211_vif_inc_num_mcast(sta->sdata); 2233 cfg80211_send_layer2_update(sta->sdata->dev, 2234 sta->sta.addr); 2235 } 2236 } 2237 2238 err = sta_apply_parameters(local, sta, params); 2239 if (err) 2240 return err; 2241 2242 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2243 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2244 ieee80211_recalc_ps(local); 2245 ieee80211_recalc_ps_vif(sdata); 2246 } 2247 2248 return 0; 2249 } 2250 2251 #ifdef CONFIG_MAC80211_MESH 2252 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2253 const u8 *dst, const u8 *next_hop) 2254 { 2255 struct ieee80211_sub_if_data *sdata; 2256 struct mesh_path *mpath; 2257 struct sta_info *sta; 2258 2259 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2260 2261 rcu_read_lock(); 2262 sta = sta_info_get(sdata, next_hop); 2263 if (!sta) { 2264 rcu_read_unlock(); 2265 return -ENOENT; 2266 } 2267 2268 mpath = mesh_path_add(sdata, dst); 2269 if (IS_ERR(mpath)) { 2270 rcu_read_unlock(); 2271 return PTR_ERR(mpath); 2272 } 2273 2274 mesh_path_fix_nexthop(mpath, sta); 2275 2276 rcu_read_unlock(); 2277 return 0; 2278 } 2279 2280 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2281 const u8 *dst) 2282 { 2283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2284 2285 if (dst) 2286 return mesh_path_del(sdata, dst); 2287 2288 mesh_path_flush_by_iface(sdata); 2289 return 0; 2290 } 2291 2292 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2293 const u8 *dst, const u8 *next_hop) 2294 { 2295 struct ieee80211_sub_if_data *sdata; 2296 struct mesh_path *mpath; 2297 struct sta_info *sta; 2298 2299 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2300 2301 rcu_read_lock(); 2302 2303 sta = sta_info_get(sdata, next_hop); 2304 if (!sta) { 2305 rcu_read_unlock(); 2306 return -ENOENT; 2307 } 2308 2309 mpath = mesh_path_lookup(sdata, dst); 2310 if (!mpath) { 2311 rcu_read_unlock(); 2312 return -ENOENT; 2313 } 2314 2315 mesh_path_fix_nexthop(mpath, sta); 2316 2317 rcu_read_unlock(); 2318 return 0; 2319 } 2320 2321 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2322 struct mpath_info *pinfo) 2323 { 2324 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2325 2326 if (next_hop_sta) 2327 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2328 else 2329 eth_zero_addr(next_hop); 2330 2331 memset(pinfo, 0, sizeof(*pinfo)); 2332 2333 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2334 2335 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2336 MPATH_INFO_SN | 2337 MPATH_INFO_METRIC | 2338 MPATH_INFO_EXPTIME | 2339 MPATH_INFO_DISCOVERY_TIMEOUT | 2340 MPATH_INFO_DISCOVERY_RETRIES | 2341 MPATH_INFO_FLAGS | 2342 MPATH_INFO_HOP_COUNT | 2343 MPATH_INFO_PATH_CHANGE; 2344 2345 pinfo->frame_qlen = mpath->frame_queue.qlen; 2346 pinfo->sn = mpath->sn; 2347 pinfo->metric = mpath->metric; 2348 if (time_before(jiffies, mpath->exp_time)) 2349 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2350 pinfo->discovery_timeout = 2351 jiffies_to_msecs(mpath->discovery_timeout); 2352 pinfo->discovery_retries = mpath->discovery_retries; 2353 if (mpath->flags & MESH_PATH_ACTIVE) 2354 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2355 if (mpath->flags & MESH_PATH_RESOLVING) 2356 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2357 if (mpath->flags & MESH_PATH_SN_VALID) 2358 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2359 if (mpath->flags & MESH_PATH_FIXED) 2360 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2361 if (mpath->flags & MESH_PATH_RESOLVED) 2362 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2363 pinfo->hop_count = mpath->hop_count; 2364 pinfo->path_change_count = mpath->path_change_count; 2365 } 2366 2367 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2368 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2369 2370 { 2371 struct ieee80211_sub_if_data *sdata; 2372 struct mesh_path *mpath; 2373 2374 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2375 2376 rcu_read_lock(); 2377 mpath = mesh_path_lookup(sdata, dst); 2378 if (!mpath) { 2379 rcu_read_unlock(); 2380 return -ENOENT; 2381 } 2382 memcpy(dst, mpath->dst, ETH_ALEN); 2383 mpath_set_pinfo(mpath, next_hop, pinfo); 2384 rcu_read_unlock(); 2385 return 0; 2386 } 2387 2388 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2389 int idx, u8 *dst, u8 *next_hop, 2390 struct mpath_info *pinfo) 2391 { 2392 struct ieee80211_sub_if_data *sdata; 2393 struct mesh_path *mpath; 2394 2395 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2396 2397 rcu_read_lock(); 2398 mpath = mesh_path_lookup_by_idx(sdata, idx); 2399 if (!mpath) { 2400 rcu_read_unlock(); 2401 return -ENOENT; 2402 } 2403 memcpy(dst, mpath->dst, ETH_ALEN); 2404 mpath_set_pinfo(mpath, next_hop, pinfo); 2405 rcu_read_unlock(); 2406 return 0; 2407 } 2408 2409 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2410 struct mpath_info *pinfo) 2411 { 2412 memset(pinfo, 0, sizeof(*pinfo)); 2413 memcpy(mpp, mpath->mpp, ETH_ALEN); 2414 2415 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2416 } 2417 2418 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2419 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2420 2421 { 2422 struct ieee80211_sub_if_data *sdata; 2423 struct mesh_path *mpath; 2424 2425 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2426 2427 rcu_read_lock(); 2428 mpath = mpp_path_lookup(sdata, dst); 2429 if (!mpath) { 2430 rcu_read_unlock(); 2431 return -ENOENT; 2432 } 2433 memcpy(dst, mpath->dst, ETH_ALEN); 2434 mpp_set_pinfo(mpath, mpp, pinfo); 2435 rcu_read_unlock(); 2436 return 0; 2437 } 2438 2439 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2440 int idx, u8 *dst, u8 *mpp, 2441 struct mpath_info *pinfo) 2442 { 2443 struct ieee80211_sub_if_data *sdata; 2444 struct mesh_path *mpath; 2445 2446 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2447 2448 rcu_read_lock(); 2449 mpath = mpp_path_lookup_by_idx(sdata, idx); 2450 if (!mpath) { 2451 rcu_read_unlock(); 2452 return -ENOENT; 2453 } 2454 memcpy(dst, mpath->dst, ETH_ALEN); 2455 mpp_set_pinfo(mpath, mpp, pinfo); 2456 rcu_read_unlock(); 2457 return 0; 2458 } 2459 2460 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2461 struct net_device *dev, 2462 struct mesh_config *conf) 2463 { 2464 struct ieee80211_sub_if_data *sdata; 2465 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2466 2467 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2468 return 0; 2469 } 2470 2471 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2472 { 2473 return (mask >> (parm-1)) & 0x1; 2474 } 2475 2476 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2477 const struct mesh_setup *setup) 2478 { 2479 u8 *new_ie; 2480 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2481 struct ieee80211_sub_if_data, u.mesh); 2482 int i; 2483 2484 /* allocate information elements */ 2485 new_ie = NULL; 2486 2487 if (setup->ie_len) { 2488 new_ie = kmemdup(setup->ie, setup->ie_len, 2489 GFP_KERNEL); 2490 if (!new_ie) 2491 return -ENOMEM; 2492 } 2493 ifmsh->ie_len = setup->ie_len; 2494 ifmsh->ie = new_ie; 2495 2496 /* now copy the rest of the setup parameters */ 2497 ifmsh->mesh_id_len = setup->mesh_id_len; 2498 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2499 ifmsh->mesh_sp_id = setup->sync_method; 2500 ifmsh->mesh_pp_id = setup->path_sel_proto; 2501 ifmsh->mesh_pm_id = setup->path_metric; 2502 ifmsh->user_mpm = setup->user_mpm; 2503 ifmsh->mesh_auth_id = setup->auth_id; 2504 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2505 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2506 if (setup->is_authenticated) 2507 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2508 if (setup->is_secure) 2509 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2510 2511 /* mcast rate setting in Mesh Node */ 2512 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2513 sizeof(setup->mcast_rate)); 2514 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2515 2516 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2517 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2518 2519 sdata->beacon_rate_set = false; 2520 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2521 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2522 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2523 sdata->beacon_rateidx_mask[i] = 2524 setup->beacon_rate.control[i].legacy; 2525 if (sdata->beacon_rateidx_mask[i]) 2526 sdata->beacon_rate_set = true; 2527 } 2528 } 2529 2530 return 0; 2531 } 2532 2533 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2534 struct net_device *dev, u32 mask, 2535 const struct mesh_config *nconf) 2536 { 2537 struct mesh_config *conf; 2538 struct ieee80211_sub_if_data *sdata; 2539 struct ieee80211_if_mesh *ifmsh; 2540 2541 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2542 ifmsh = &sdata->u.mesh; 2543 2544 /* Set the config options which we are interested in setting */ 2545 conf = &(sdata->u.mesh.mshcfg); 2546 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2547 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2548 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2549 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2550 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2551 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2552 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2553 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2554 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2555 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2556 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2557 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2558 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2559 conf->element_ttl = nconf->element_ttl; 2560 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2561 if (ifmsh->user_mpm) 2562 return -EBUSY; 2563 conf->auto_open_plinks = nconf->auto_open_plinks; 2564 } 2565 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2566 conf->dot11MeshNbrOffsetMaxNeighbor = 2567 nconf->dot11MeshNbrOffsetMaxNeighbor; 2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2569 conf->dot11MeshHWMPmaxPREQretries = 2570 nconf->dot11MeshHWMPmaxPREQretries; 2571 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2572 conf->path_refresh_time = nconf->path_refresh_time; 2573 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2574 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2575 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2576 conf->dot11MeshHWMPactivePathTimeout = 2577 nconf->dot11MeshHWMPactivePathTimeout; 2578 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2579 conf->dot11MeshHWMPpreqMinInterval = 2580 nconf->dot11MeshHWMPpreqMinInterval; 2581 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2582 conf->dot11MeshHWMPperrMinInterval = 2583 nconf->dot11MeshHWMPperrMinInterval; 2584 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2585 mask)) 2586 conf->dot11MeshHWMPnetDiameterTraversalTime = 2587 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2588 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2589 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2590 ieee80211_mesh_root_setup(ifmsh); 2591 } 2592 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2593 /* our current gate announcement implementation rides on root 2594 * announcements, so require this ifmsh to also be a root node 2595 * */ 2596 if (nconf->dot11MeshGateAnnouncementProtocol && 2597 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2598 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2599 ieee80211_mesh_root_setup(ifmsh); 2600 } 2601 conf->dot11MeshGateAnnouncementProtocol = 2602 nconf->dot11MeshGateAnnouncementProtocol; 2603 } 2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2605 conf->dot11MeshHWMPRannInterval = 2606 nconf->dot11MeshHWMPRannInterval; 2607 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2608 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2609 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2610 /* our RSSI threshold implementation is supported only for 2611 * devices that report signal in dBm. 2612 */ 2613 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2614 return -EOPNOTSUPP; 2615 conf->rssi_threshold = nconf->rssi_threshold; 2616 } 2617 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2618 conf->ht_opmode = nconf->ht_opmode; 2619 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2620 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2621 BSS_CHANGED_HT); 2622 } 2623 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2624 conf->dot11MeshHWMPactivePathToRootTimeout = 2625 nconf->dot11MeshHWMPactivePathToRootTimeout; 2626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2627 conf->dot11MeshHWMProotInterval = 2628 nconf->dot11MeshHWMProotInterval; 2629 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2630 conf->dot11MeshHWMPconfirmationInterval = 2631 nconf->dot11MeshHWMPconfirmationInterval; 2632 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2633 conf->power_mode = nconf->power_mode; 2634 ieee80211_mps_local_status_update(sdata); 2635 } 2636 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2637 conf->dot11MeshAwakeWindowDuration = 2638 nconf->dot11MeshAwakeWindowDuration; 2639 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2640 conf->plink_timeout = nconf->plink_timeout; 2641 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2642 conf->dot11MeshConnectedToMeshGate = 2643 nconf->dot11MeshConnectedToMeshGate; 2644 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2645 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2646 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2647 conf->dot11MeshConnectedToAuthServer = 2648 nconf->dot11MeshConnectedToAuthServer; 2649 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2650 return 0; 2651 } 2652 2653 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2654 const struct mesh_config *conf, 2655 const struct mesh_setup *setup) 2656 { 2657 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2658 struct ieee80211_chan_req chanreq = { .oper = setup->chandef }; 2659 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2660 int err; 2661 2662 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2663 2664 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2665 err = copy_mesh_setup(ifmsh, setup); 2666 if (err) 2667 return err; 2668 2669 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2670 2671 /* can mesh use other SMPS modes? */ 2672 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2673 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2674 2675 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 2676 IEEE80211_CHANCTX_SHARED); 2677 if (err) 2678 return err; 2679 2680 return ieee80211_start_mesh(sdata); 2681 } 2682 2683 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2684 { 2685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2686 2687 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2688 2689 ieee80211_stop_mesh(sdata); 2690 ieee80211_link_release_channel(&sdata->deflink); 2691 kfree(sdata->u.mesh.ie); 2692 2693 return 0; 2694 } 2695 #endif 2696 2697 static int ieee80211_change_bss(struct wiphy *wiphy, 2698 struct net_device *dev, 2699 struct bss_parameters *params) 2700 { 2701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2702 struct ieee80211_link_data *link; 2703 struct ieee80211_supported_band *sband; 2704 u64 changed = 0; 2705 2706 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2707 if (IS_ERR(link)) 2708 return PTR_ERR(link); 2709 2710 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2711 return -ENOENT; 2712 2713 sband = ieee80211_get_link_sband(link); 2714 if (!sband) 2715 return -EINVAL; 2716 2717 if (params->basic_rates) { 2718 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width, 2719 wiphy->bands[sband->band], 2720 params->basic_rates, 2721 params->basic_rates_len, 2722 &link->conf->basic_rates)) 2723 return -EINVAL; 2724 changed |= BSS_CHANGED_BASIC_RATES; 2725 ieee80211_check_rate_mask(link); 2726 } 2727 2728 if (params->use_cts_prot >= 0) { 2729 link->conf->use_cts_prot = params->use_cts_prot; 2730 changed |= BSS_CHANGED_ERP_CTS_PROT; 2731 } 2732 if (params->use_short_preamble >= 0) { 2733 link->conf->use_short_preamble = params->use_short_preamble; 2734 changed |= BSS_CHANGED_ERP_PREAMBLE; 2735 } 2736 2737 if (!link->conf->use_short_slot && 2738 (sband->band == NL80211_BAND_5GHZ || 2739 sband->band == NL80211_BAND_6GHZ)) { 2740 link->conf->use_short_slot = true; 2741 changed |= BSS_CHANGED_ERP_SLOT; 2742 } 2743 2744 if (params->use_short_slot_time >= 0) { 2745 link->conf->use_short_slot = params->use_short_slot_time; 2746 changed |= BSS_CHANGED_ERP_SLOT; 2747 } 2748 2749 if (params->ap_isolate >= 0) { 2750 if (params->ap_isolate) 2751 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2752 else 2753 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2754 ieee80211_check_fast_rx_iface(sdata); 2755 } 2756 2757 if (params->ht_opmode >= 0) { 2758 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2759 changed |= BSS_CHANGED_HT; 2760 } 2761 2762 if (params->p2p_ctwindow >= 0) { 2763 link->conf->p2p_noa_attr.oppps_ctwindow &= 2764 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2765 link->conf->p2p_noa_attr.oppps_ctwindow |= 2766 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2767 changed |= BSS_CHANGED_P2P_PS; 2768 } 2769 2770 if (params->p2p_opp_ps > 0) { 2771 link->conf->p2p_noa_attr.oppps_ctwindow |= 2772 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2773 changed |= BSS_CHANGED_P2P_PS; 2774 } else if (params->p2p_opp_ps == 0) { 2775 link->conf->p2p_noa_attr.oppps_ctwindow &= 2776 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2777 changed |= BSS_CHANGED_P2P_PS; 2778 } 2779 2780 ieee80211_link_info_change_notify(sdata, link, changed); 2781 2782 return 0; 2783 } 2784 2785 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2786 struct net_device *dev, 2787 struct ieee80211_txq_params *params) 2788 { 2789 struct ieee80211_local *local = wiphy_priv(wiphy); 2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2791 struct ieee80211_link_data *link = 2792 ieee80211_link_or_deflink(sdata, params->link_id, true); 2793 struct ieee80211_tx_queue_params p; 2794 2795 if (!local->ops->conf_tx) 2796 return -EOPNOTSUPP; 2797 2798 if (local->hw.queues < IEEE80211_NUM_ACS) 2799 return -EOPNOTSUPP; 2800 2801 if (IS_ERR(link)) 2802 return PTR_ERR(link); 2803 2804 memset(&p, 0, sizeof(p)); 2805 p.aifs = params->aifs; 2806 p.cw_max = params->cwmax; 2807 p.cw_min = params->cwmin; 2808 p.txop = params->txop; 2809 2810 /* 2811 * Setting tx queue params disables u-apsd because it's only 2812 * called in master mode. 2813 */ 2814 p.uapsd = false; 2815 2816 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2817 2818 link->tx_conf[params->ac] = p; 2819 if (drv_conf_tx(local, link, params->ac, &p)) { 2820 wiphy_debug(local->hw.wiphy, 2821 "failed to set TX queue parameters for AC %d\n", 2822 params->ac); 2823 return -EINVAL; 2824 } 2825 2826 ieee80211_link_info_change_notify(sdata, link, 2827 BSS_CHANGED_QOS); 2828 2829 return 0; 2830 } 2831 2832 #ifdef CONFIG_PM 2833 static int ieee80211_suspend(struct wiphy *wiphy, 2834 struct cfg80211_wowlan *wowlan) 2835 { 2836 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2837 } 2838 2839 static int ieee80211_resume(struct wiphy *wiphy) 2840 { 2841 return __ieee80211_resume(wiphy_priv(wiphy)); 2842 } 2843 #else 2844 #define ieee80211_suspend NULL 2845 #define ieee80211_resume NULL 2846 #endif 2847 2848 static int ieee80211_scan(struct wiphy *wiphy, 2849 struct cfg80211_scan_request *req) 2850 { 2851 struct ieee80211_sub_if_data *sdata; 2852 2853 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2854 2855 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2856 case NL80211_IFTYPE_STATION: 2857 case NL80211_IFTYPE_ADHOC: 2858 case NL80211_IFTYPE_MESH_POINT: 2859 case NL80211_IFTYPE_P2P_CLIENT: 2860 case NL80211_IFTYPE_P2P_DEVICE: 2861 break; 2862 case NL80211_IFTYPE_P2P_GO: 2863 if (sdata->local->ops->hw_scan) 2864 break; 2865 /* 2866 * FIXME: implement NoA while scanning in software, 2867 * for now fall through to allow scanning only when 2868 * beaconing hasn't been configured yet 2869 */ 2870 fallthrough; 2871 case NL80211_IFTYPE_AP: 2872 /* 2873 * If the scan has been forced (and the driver supports 2874 * forcing), don't care about being beaconing already. 2875 * This will create problems to the attached stations (e.g. all 2876 * the frames sent while scanning on other channel will be 2877 * lost) 2878 */ 2879 if (sdata->deflink.u.ap.beacon && 2880 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2881 !(req->flags & NL80211_SCAN_FLAG_AP))) 2882 return -EOPNOTSUPP; 2883 break; 2884 case NL80211_IFTYPE_NAN: 2885 default: 2886 return -EOPNOTSUPP; 2887 } 2888 2889 return ieee80211_request_scan(sdata, req); 2890 } 2891 2892 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2893 { 2894 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2895 } 2896 2897 static int 2898 ieee80211_sched_scan_start(struct wiphy *wiphy, 2899 struct net_device *dev, 2900 struct cfg80211_sched_scan_request *req) 2901 { 2902 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2903 2904 if (!sdata->local->ops->sched_scan_start) 2905 return -EOPNOTSUPP; 2906 2907 return ieee80211_request_sched_scan_start(sdata, req); 2908 } 2909 2910 static int 2911 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2912 u64 reqid) 2913 { 2914 struct ieee80211_local *local = wiphy_priv(wiphy); 2915 2916 if (!local->ops->sched_scan_stop) 2917 return -EOPNOTSUPP; 2918 2919 return ieee80211_request_sched_scan_stop(local); 2920 } 2921 2922 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2923 struct cfg80211_auth_request *req) 2924 { 2925 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2926 } 2927 2928 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2929 struct cfg80211_assoc_request *req) 2930 { 2931 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2932 } 2933 2934 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2935 struct cfg80211_deauth_request *req) 2936 { 2937 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2938 } 2939 2940 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2941 struct cfg80211_disassoc_request *req) 2942 { 2943 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2944 } 2945 2946 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2947 struct cfg80211_ibss_params *params) 2948 { 2949 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2950 } 2951 2952 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2953 { 2954 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2955 } 2956 2957 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2958 struct ocb_setup *setup) 2959 { 2960 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2961 } 2962 2963 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2964 { 2965 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2966 } 2967 2968 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2969 int rate[NUM_NL80211_BANDS]) 2970 { 2971 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2972 2973 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2974 sizeof(int) * NUM_NL80211_BANDS); 2975 2976 if (ieee80211_sdata_running(sdata)) 2977 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2978 BSS_CHANGED_MCAST_RATE); 2979 2980 return 0; 2981 } 2982 2983 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2984 { 2985 struct ieee80211_local *local = wiphy_priv(wiphy); 2986 int err; 2987 2988 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2989 ieee80211_check_fast_xmit_all(local); 2990 2991 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2992 2993 if (err) { 2994 ieee80211_check_fast_xmit_all(local); 2995 return err; 2996 } 2997 } 2998 2999 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 3000 (changed & WIPHY_PARAM_DYN_ACK)) { 3001 s16 coverage_class; 3002 3003 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 3004 wiphy->coverage_class : -1; 3005 err = drv_set_coverage_class(local, coverage_class); 3006 3007 if (err) 3008 return err; 3009 } 3010 3011 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 3012 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 3013 3014 if (err) 3015 return err; 3016 } 3017 3018 if (changed & WIPHY_PARAM_RETRY_SHORT) { 3019 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 3020 return -EINVAL; 3021 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 3022 } 3023 if (changed & WIPHY_PARAM_RETRY_LONG) { 3024 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 3025 return -EINVAL; 3026 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 3027 } 3028 if (changed & 3029 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 3030 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 3031 3032 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 3033 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 3034 WIPHY_PARAM_TXQ_QUANTUM)) 3035 ieee80211_txq_set_params(local); 3036 3037 return 0; 3038 } 3039 3040 static int ieee80211_set_tx_power(struct wiphy *wiphy, 3041 struct wireless_dev *wdev, 3042 enum nl80211_tx_power_setting type, int mbm) 3043 { 3044 struct ieee80211_local *local = wiphy_priv(wiphy); 3045 struct ieee80211_sub_if_data *sdata; 3046 enum nl80211_tx_power_setting txp_type = type; 3047 bool update_txp_type = false; 3048 bool has_monitor = false; 3049 3050 lockdep_assert_wiphy(local->hw.wiphy); 3051 3052 if (wdev) { 3053 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3054 3055 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3056 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) 3057 return -EOPNOTSUPP; 3058 3059 sdata = wiphy_dereference(local->hw.wiphy, 3060 local->monitor_sdata); 3061 if (!sdata) 3062 return -EOPNOTSUPP; 3063 } 3064 3065 switch (type) { 3066 case NL80211_TX_POWER_AUTOMATIC: 3067 sdata->deflink.user_power_level = 3068 IEEE80211_UNSET_POWER_LEVEL; 3069 txp_type = NL80211_TX_POWER_LIMITED; 3070 break; 3071 case NL80211_TX_POWER_LIMITED: 3072 case NL80211_TX_POWER_FIXED: 3073 if (mbm < 0 || (mbm % 100)) 3074 return -EOPNOTSUPP; 3075 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 3076 break; 3077 } 3078 3079 if (txp_type != sdata->vif.bss_conf.txpower_type) { 3080 update_txp_type = true; 3081 sdata->vif.bss_conf.txpower_type = txp_type; 3082 } 3083 3084 ieee80211_recalc_txpower(sdata, update_txp_type); 3085 3086 return 0; 3087 } 3088 3089 switch (type) { 3090 case NL80211_TX_POWER_AUTOMATIC: 3091 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3092 txp_type = NL80211_TX_POWER_LIMITED; 3093 break; 3094 case NL80211_TX_POWER_LIMITED: 3095 case NL80211_TX_POWER_FIXED: 3096 if (mbm < 0 || (mbm % 100)) 3097 return -EOPNOTSUPP; 3098 local->user_power_level = MBM_TO_DBM(mbm); 3099 break; 3100 } 3101 3102 list_for_each_entry(sdata, &local->interfaces, list) { 3103 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3104 has_monitor = true; 3105 continue; 3106 } 3107 sdata->deflink.user_power_level = local->user_power_level; 3108 if (txp_type != sdata->vif.bss_conf.txpower_type) 3109 update_txp_type = true; 3110 sdata->vif.bss_conf.txpower_type = txp_type; 3111 } 3112 list_for_each_entry(sdata, &local->interfaces, list) { 3113 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3114 continue; 3115 ieee80211_recalc_txpower(sdata, update_txp_type); 3116 } 3117 3118 if (has_monitor) { 3119 sdata = wiphy_dereference(local->hw.wiphy, 3120 local->monitor_sdata); 3121 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) { 3122 sdata->deflink.user_power_level = local->user_power_level; 3123 if (txp_type != sdata->vif.bss_conf.txpower_type) 3124 update_txp_type = true; 3125 sdata->vif.bss_conf.txpower_type = txp_type; 3126 3127 ieee80211_recalc_txpower(sdata, update_txp_type); 3128 } 3129 } 3130 3131 return 0; 3132 } 3133 3134 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3135 struct wireless_dev *wdev, 3136 int *dbm) 3137 { 3138 struct ieee80211_local *local = wiphy_priv(wiphy); 3139 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3140 3141 if (local->ops->get_txpower) 3142 return drv_get_txpower(local, sdata, dbm); 3143 3144 if (local->emulate_chanctx) 3145 *dbm = local->hw.conf.power_level; 3146 else 3147 *dbm = sdata->vif.bss_conf.txpower; 3148 3149 /* INT_MIN indicates no power level was set yet */ 3150 if (*dbm == INT_MIN) 3151 return -EINVAL; 3152 3153 return 0; 3154 } 3155 3156 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3157 { 3158 struct ieee80211_local *local = wiphy_priv(wiphy); 3159 3160 drv_rfkill_poll(local); 3161 } 3162 3163 #ifdef CONFIG_NL80211_TESTMODE 3164 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3165 struct wireless_dev *wdev, 3166 void *data, int len) 3167 { 3168 struct ieee80211_local *local = wiphy_priv(wiphy); 3169 struct ieee80211_vif *vif = NULL; 3170 3171 if (!local->ops->testmode_cmd) 3172 return -EOPNOTSUPP; 3173 3174 if (wdev) { 3175 struct ieee80211_sub_if_data *sdata; 3176 3177 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3178 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3179 vif = &sdata->vif; 3180 } 3181 3182 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3183 } 3184 3185 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3186 struct sk_buff *skb, 3187 struct netlink_callback *cb, 3188 void *data, int len) 3189 { 3190 struct ieee80211_local *local = wiphy_priv(wiphy); 3191 3192 if (!local->ops->testmode_dump) 3193 return -EOPNOTSUPP; 3194 3195 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3196 } 3197 #endif 3198 3199 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3200 struct ieee80211_link_data *link, 3201 enum ieee80211_smps_mode smps_mode) 3202 { 3203 const u8 *ap; 3204 enum ieee80211_smps_mode old_req; 3205 int err; 3206 struct sta_info *sta; 3207 bool tdls_peer_found = false; 3208 3209 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3210 3211 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3212 return -EINVAL; 3213 3214 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3215 return 0; 3216 3217 old_req = link->u.mgd.req_smps; 3218 link->u.mgd.req_smps = smps_mode; 3219 3220 /* The driver indicated that EML is enabled for the interface, which 3221 * implies that SMPS flows towards the AP should be stopped. 3222 */ 3223 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) 3224 return 0; 3225 3226 if (old_req == smps_mode && 3227 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3228 return 0; 3229 3230 /* 3231 * If not associated, or current association is not an HT 3232 * association, there's no need to do anything, just store 3233 * the new value until we associate. 3234 */ 3235 if (!sdata->u.mgd.associated || 3236 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT) 3237 return 0; 3238 3239 ap = sdata->vif.cfg.ap_addr; 3240 3241 rcu_read_lock(); 3242 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3243 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3244 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3245 continue; 3246 3247 tdls_peer_found = true; 3248 break; 3249 } 3250 rcu_read_unlock(); 3251 3252 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3253 if (tdls_peer_found || !sdata->u.mgd.powersave) 3254 smps_mode = IEEE80211_SMPS_OFF; 3255 else 3256 smps_mode = IEEE80211_SMPS_DYNAMIC; 3257 } 3258 3259 /* send SM PS frame to AP */ 3260 err = ieee80211_send_smps_action(sdata, smps_mode, 3261 ap, ap, 3262 ieee80211_vif_is_mld(&sdata->vif) ? 3263 link->link_id : -1); 3264 if (err) 3265 link->u.mgd.req_smps = old_req; 3266 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3267 ieee80211_teardown_tdls_peers(link); 3268 3269 return err; 3270 } 3271 3272 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3273 bool enabled, int timeout) 3274 { 3275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3276 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3277 unsigned int link_id; 3278 3279 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3280 return -EOPNOTSUPP; 3281 3282 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3283 return -EOPNOTSUPP; 3284 3285 if (enabled == sdata->u.mgd.powersave && 3286 timeout == local->dynamic_ps_forced_timeout) 3287 return 0; 3288 3289 sdata->u.mgd.powersave = enabled; 3290 local->dynamic_ps_forced_timeout = timeout; 3291 3292 /* no change, but if automatic follow powersave */ 3293 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3294 struct ieee80211_link_data *link; 3295 3296 link = sdata_dereference(sdata->link[link_id], sdata); 3297 3298 if (!link) 3299 continue; 3300 __ieee80211_request_smps_mgd(sdata, link, 3301 link->u.mgd.req_smps); 3302 } 3303 3304 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3305 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3306 3307 ieee80211_recalc_ps(local); 3308 ieee80211_recalc_ps_vif(sdata); 3309 ieee80211_check_fast_rx_iface(sdata); 3310 3311 return 0; 3312 } 3313 3314 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata, 3315 struct ieee80211_link_data *link, 3316 s32 rssi_thold, u32 rssi_hyst, 3317 s32 rssi_low, s32 rssi_high) 3318 { 3319 struct ieee80211_bss_conf *conf; 3320 3321 if (!link || !link->conf) 3322 return; 3323 3324 conf = link->conf; 3325 3326 if (rssi_thold && rssi_hyst && 3327 rssi_thold == conf->cqm_rssi_thold && 3328 rssi_hyst == conf->cqm_rssi_hyst) 3329 return; 3330 3331 conf->cqm_rssi_thold = rssi_thold; 3332 conf->cqm_rssi_hyst = rssi_hyst; 3333 conf->cqm_rssi_low = rssi_low; 3334 conf->cqm_rssi_high = rssi_high; 3335 link->u.mgd.last_cqm_event_signal = 0; 3336 3337 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id)) 3338 return; 3339 3340 if (sdata->u.mgd.associated && 3341 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3342 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM); 3343 } 3344 3345 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3346 struct net_device *dev, 3347 s32 rssi_thold, u32 rssi_hyst) 3348 { 3349 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3350 struct ieee80211_vif *vif = &sdata->vif; 3351 int link_id; 3352 3353 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER && 3354 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3355 return -EOPNOTSUPP; 3356 3357 /* For MLD, handle CQM change on all the active links */ 3358 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3359 struct ieee80211_link_data *link = 3360 sdata_dereference(sdata->link[link_id], sdata); 3361 3362 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst, 3363 0, 0); 3364 } 3365 3366 return 0; 3367 } 3368 3369 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3370 struct net_device *dev, 3371 s32 rssi_low, s32 rssi_high) 3372 { 3373 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3374 struct ieee80211_vif *vif = &sdata->vif; 3375 int link_id; 3376 3377 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) 3378 return -EOPNOTSUPP; 3379 3380 /* For MLD, handle CQM change on all the active links */ 3381 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { 3382 struct ieee80211_link_data *link = 3383 sdata_dereference(sdata->link[link_id], sdata); 3384 3385 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0, 3386 rssi_low, rssi_high); 3387 } 3388 3389 return 0; 3390 } 3391 3392 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3393 struct net_device *dev, 3394 unsigned int link_id, 3395 const u8 *addr, 3396 const struct cfg80211_bitrate_mask *mask) 3397 { 3398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3399 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3400 int i, ret; 3401 3402 if (!ieee80211_sdata_running(sdata)) 3403 return -ENETDOWN; 3404 3405 /* 3406 * If active validate the setting and reject it if it doesn't leave 3407 * at least one basic rate usable, since we really have to be able 3408 * to send something, and if we're an AP we have to be able to do 3409 * so at a basic rate so that all clients can receive it. 3410 */ 3411 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3412 sdata->vif.bss_conf.chanreq.oper.chan) { 3413 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3414 enum nl80211_band band; 3415 3416 band = sdata->vif.bss_conf.chanreq.oper.chan->band; 3417 3418 if (!(mask->control[band].legacy & basic_rates)) 3419 return -EINVAL; 3420 } 3421 3422 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3423 ret = drv_set_bitrate_mask(local, sdata, mask); 3424 if (ret) 3425 return ret; 3426 } 3427 3428 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3429 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3430 int j; 3431 3432 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3433 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3434 sizeof(mask->control[i].ht_mcs)); 3435 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3436 mask->control[i].vht_mcs, 3437 sizeof(mask->control[i].vht_mcs)); 3438 3439 sdata->rc_has_mcs_mask[i] = false; 3440 sdata->rc_has_vht_mcs_mask[i] = false; 3441 if (!sband) 3442 continue; 3443 3444 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3445 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3446 sdata->rc_has_mcs_mask[i] = true; 3447 break; 3448 } 3449 } 3450 3451 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3452 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3453 sdata->rc_has_vht_mcs_mask[i] = true; 3454 break; 3455 } 3456 } 3457 } 3458 3459 return 0; 3460 } 3461 3462 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3463 struct net_device *dev, 3464 struct cfg80211_chan_def *chandef, 3465 u32 cac_time_ms) 3466 { 3467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3468 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 3469 struct ieee80211_local *local = sdata->local; 3470 int err; 3471 3472 lockdep_assert_wiphy(local->hw.wiphy); 3473 3474 if (!list_empty(&local->roc_list) || local->scanning) { 3475 err = -EBUSY; 3476 goto out_unlock; 3477 } 3478 3479 /* whatever, but channel contexts should not complain about that one */ 3480 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3481 sdata->deflink.needed_rx_chains = local->rx_chains; 3482 3483 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq, 3484 IEEE80211_CHANCTX_SHARED); 3485 if (err) 3486 goto out_unlock; 3487 3488 wiphy_delayed_work_queue(wiphy, &sdata->dfs_cac_timer_work, 3489 msecs_to_jiffies(cac_time_ms)); 3490 3491 out_unlock: 3492 return err; 3493 } 3494 3495 static void ieee80211_end_cac(struct wiphy *wiphy, 3496 struct net_device *dev) 3497 { 3498 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3499 struct ieee80211_local *local = sdata->local; 3500 3501 lockdep_assert_wiphy(local->hw.wiphy); 3502 3503 list_for_each_entry(sdata, &local->interfaces, list) { 3504 wiphy_delayed_work_cancel(wiphy, 3505 &sdata->dfs_cac_timer_work); 3506 3507 if (sdata->wdev.cac_started) { 3508 ieee80211_link_release_channel(&sdata->deflink); 3509 sdata->wdev.cac_started = false; 3510 } 3511 } 3512 } 3513 3514 static struct cfg80211_beacon_data * 3515 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3516 { 3517 struct cfg80211_beacon_data *new_beacon; 3518 u8 *pos; 3519 int len; 3520 3521 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3522 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3523 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3524 3525 if (beacon->mbssid_ies) 3526 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3527 beacon->rnr_ies, 3528 beacon->mbssid_ies->cnt); 3529 3530 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3531 if (!new_beacon) 3532 return NULL; 3533 3534 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3535 new_beacon->mbssid_ies = 3536 kzalloc(struct_size(new_beacon->mbssid_ies, 3537 elem, beacon->mbssid_ies->cnt), 3538 GFP_KERNEL); 3539 if (!new_beacon->mbssid_ies) { 3540 kfree(new_beacon); 3541 return NULL; 3542 } 3543 3544 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3545 new_beacon->rnr_ies = 3546 kzalloc(struct_size(new_beacon->rnr_ies, 3547 elem, beacon->rnr_ies->cnt), 3548 GFP_KERNEL); 3549 if (!new_beacon->rnr_ies) { 3550 kfree(new_beacon->mbssid_ies); 3551 kfree(new_beacon); 3552 return NULL; 3553 } 3554 } 3555 } 3556 3557 pos = (u8 *)(new_beacon + 1); 3558 if (beacon->head_len) { 3559 new_beacon->head_len = beacon->head_len; 3560 new_beacon->head = pos; 3561 memcpy(pos, beacon->head, beacon->head_len); 3562 pos += beacon->head_len; 3563 } 3564 if (beacon->tail_len) { 3565 new_beacon->tail_len = beacon->tail_len; 3566 new_beacon->tail = pos; 3567 memcpy(pos, beacon->tail, beacon->tail_len); 3568 pos += beacon->tail_len; 3569 } 3570 if (beacon->beacon_ies_len) { 3571 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3572 new_beacon->beacon_ies = pos; 3573 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3574 pos += beacon->beacon_ies_len; 3575 } 3576 if (beacon->proberesp_ies_len) { 3577 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3578 new_beacon->proberesp_ies = pos; 3579 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3580 pos += beacon->proberesp_ies_len; 3581 } 3582 if (beacon->assocresp_ies_len) { 3583 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3584 new_beacon->assocresp_ies = pos; 3585 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3586 pos += beacon->assocresp_ies_len; 3587 } 3588 if (beacon->probe_resp_len) { 3589 new_beacon->probe_resp_len = beacon->probe_resp_len; 3590 new_beacon->probe_resp = pos; 3591 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3592 pos += beacon->probe_resp_len; 3593 } 3594 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3595 pos += ieee80211_copy_mbssid_beacon(pos, 3596 new_beacon->mbssid_ies, 3597 beacon->mbssid_ies); 3598 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3599 pos += ieee80211_copy_rnr_beacon(pos, 3600 new_beacon->rnr_ies, 3601 beacon->rnr_ies); 3602 } 3603 3604 /* might copy -1, meaning no changes requested */ 3605 new_beacon->ftm_responder = beacon->ftm_responder; 3606 if (beacon->lci) { 3607 new_beacon->lci_len = beacon->lci_len; 3608 new_beacon->lci = pos; 3609 memcpy(pos, beacon->lci, beacon->lci_len); 3610 pos += beacon->lci_len; 3611 } 3612 if (beacon->civicloc) { 3613 new_beacon->civicloc_len = beacon->civicloc_len; 3614 new_beacon->civicloc = pos; 3615 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3616 pos += beacon->civicloc_len; 3617 } 3618 3619 return new_beacon; 3620 } 3621 3622 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id) 3623 { 3624 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3625 struct ieee80211_local *local = sdata->local; 3626 struct ieee80211_link_data *link_data; 3627 3628 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3629 return; 3630 3631 rcu_read_lock(); 3632 3633 link_data = rcu_dereference(sdata->link[link_id]); 3634 if (WARN_ON(!link_data)) { 3635 rcu_read_unlock(); 3636 return; 3637 } 3638 3639 /* TODO: MBSSID with MLO changes */ 3640 if (vif->mbssid_tx_vif == vif) { 3641 /* Trigger ieee80211_csa_finish() on the non-transmitting 3642 * interfaces when channel switch is received on 3643 * transmitting interface 3644 */ 3645 struct ieee80211_sub_if_data *iter; 3646 3647 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3648 if (!ieee80211_sdata_running(iter)) 3649 continue; 3650 3651 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3652 continue; 3653 3654 wiphy_work_queue(iter->local->hw.wiphy, 3655 &iter->deflink.csa.finalize_work); 3656 } 3657 } 3658 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work); 3659 3660 rcu_read_unlock(); 3661 } 3662 EXPORT_SYMBOL(ieee80211_csa_finish); 3663 3664 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3665 { 3666 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3667 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3668 struct ieee80211_local *local = sdata->local; 3669 3670 sdata->csa_blocked_queues = block_tx; 3671 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3672 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3673 } 3674 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3675 3676 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data, 3677 u64 *changed) 3678 { 3679 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3680 int err; 3681 3682 switch (sdata->vif.type) { 3683 case NL80211_IFTYPE_AP: 3684 if (!link_data->u.ap.next_beacon) 3685 return -EINVAL; 3686 3687 err = ieee80211_assign_beacon(sdata, link_data, 3688 link_data->u.ap.next_beacon, 3689 NULL, NULL, changed); 3690 ieee80211_free_next_beacon(link_data); 3691 3692 if (err < 0) 3693 return err; 3694 break; 3695 case NL80211_IFTYPE_ADHOC: 3696 err = ieee80211_ibss_finish_csa(sdata, changed); 3697 if (err < 0) 3698 return err; 3699 break; 3700 #ifdef CONFIG_MAC80211_MESH 3701 case NL80211_IFTYPE_MESH_POINT: 3702 err = ieee80211_mesh_finish_csa(sdata, changed); 3703 if (err < 0) 3704 return err; 3705 break; 3706 #endif 3707 default: 3708 WARN_ON(1); 3709 return -EINVAL; 3710 } 3711 3712 return 0; 3713 } 3714 3715 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3716 { 3717 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3718 struct ieee80211_local *local = sdata->local; 3719 struct ieee80211_bss_conf *link_conf = link_data->conf; 3720 u64 changed = 0; 3721 int err; 3722 3723 lockdep_assert_wiphy(local->hw.wiphy); 3724 3725 /* 3726 * using reservation isn't immediate as it may be deferred until later 3727 * with multi-vif. once reservation is complete it will re-schedule the 3728 * work with no reserved_chanctx so verify chandef to check if it 3729 * completed successfully 3730 */ 3731 3732 if (link_data->reserved_chanctx) { 3733 /* 3734 * with multi-vif csa driver may call ieee80211_csa_finish() 3735 * many times while waiting for other interfaces to use their 3736 * reservations 3737 */ 3738 if (link_data->reserved_ready) 3739 return 0; 3740 3741 return ieee80211_link_use_reserved_context(link_data); 3742 } 3743 3744 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper, 3745 &link_data->csa.chanreq.oper)) 3746 return -EINVAL; 3747 3748 link_conf->csa_active = false; 3749 3750 err = ieee80211_set_after_csa_beacon(link_data, &changed); 3751 if (err) 3752 return err; 3753 3754 ieee80211_link_info_change_notify(sdata, link_data, changed); 3755 3756 ieee80211_vif_unblock_queues_csa(sdata); 3757 3758 err = drv_post_channel_switch(link_data); 3759 if (err) 3760 return err; 3761 3762 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper, 3763 link_data->link_id); 3764 3765 return 0; 3766 } 3767 3768 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3769 { 3770 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3771 3772 if (__ieee80211_csa_finalize(link_data)) { 3773 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n", 3774 link_data->link_id); 3775 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3776 GFP_KERNEL); 3777 } 3778 } 3779 3780 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3781 { 3782 struct ieee80211_link_data *link = 3783 container_of(work, struct ieee80211_link_data, csa.finalize_work); 3784 struct ieee80211_sub_if_data *sdata = link->sdata; 3785 struct ieee80211_local *local = sdata->local; 3786 3787 lockdep_assert_wiphy(local->hw.wiphy); 3788 3789 /* AP might have been stopped while waiting for the lock. */ 3790 if (!link->conf->csa_active) 3791 return; 3792 3793 if (!ieee80211_sdata_running(sdata)) 3794 return; 3795 3796 ieee80211_csa_finalize(link); 3797 } 3798 3799 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data, 3800 struct cfg80211_csa_settings *params, 3801 u64 *changed) 3802 { 3803 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3804 struct ieee80211_csa_settings csa = {}; 3805 int err; 3806 3807 switch (sdata->vif.type) { 3808 case NL80211_IFTYPE_AP: 3809 link_data->u.ap.next_beacon = 3810 cfg80211_beacon_dup(¶ms->beacon_after); 3811 if (!link_data->u.ap.next_beacon) 3812 return -ENOMEM; 3813 3814 /* 3815 * With a count of 0, we don't have to wait for any 3816 * TBTT before switching, so complete the CSA 3817 * immediately. In theory, with a count == 1 we 3818 * should delay the switch until just before the next 3819 * TBTT, but that would complicate things so we switch 3820 * immediately too. If we would delay the switch 3821 * until the next TBTT, we would have to set the probe 3822 * response here. 3823 * 3824 * TODO: A channel switch with count <= 1 without 3825 * sending a CSA action frame is kind of useless, 3826 * because the clients won't know we're changing 3827 * channels. The action frame must be implemented 3828 * either here or in the userspace. 3829 */ 3830 if (params->count <= 1) 3831 break; 3832 3833 if ((params->n_counter_offsets_beacon > 3834 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3835 (params->n_counter_offsets_presp > 3836 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3837 ieee80211_free_next_beacon(link_data); 3838 return -EINVAL; 3839 } 3840 3841 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3842 csa.counter_offsets_presp = params->counter_offsets_presp; 3843 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3844 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3845 csa.count = params->count; 3846 3847 err = ieee80211_assign_beacon(sdata, link_data, 3848 ¶ms->beacon_csa, &csa, 3849 NULL, changed); 3850 if (err < 0) { 3851 ieee80211_free_next_beacon(link_data); 3852 return err; 3853 } 3854 3855 break; 3856 case NL80211_IFTYPE_ADHOC: 3857 if (!sdata->vif.cfg.ibss_joined) 3858 return -EINVAL; 3859 3860 if (params->chandef.width != sdata->u.ibss.chandef.width) 3861 return -EINVAL; 3862 3863 switch (params->chandef.width) { 3864 case NL80211_CHAN_WIDTH_40: 3865 if (cfg80211_get_chandef_type(¶ms->chandef) != 3866 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3867 return -EINVAL; 3868 break; 3869 case NL80211_CHAN_WIDTH_5: 3870 case NL80211_CHAN_WIDTH_10: 3871 case NL80211_CHAN_WIDTH_20_NOHT: 3872 case NL80211_CHAN_WIDTH_20: 3873 break; 3874 default: 3875 return -EINVAL; 3876 } 3877 3878 /* changes into another band are not supported */ 3879 if (sdata->u.ibss.chandef.chan->band != 3880 params->chandef.chan->band) 3881 return -EINVAL; 3882 3883 /* see comments in the NL80211_IFTYPE_AP block */ 3884 if (params->count > 1) { 3885 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3886 if (err < 0) 3887 return err; 3888 } 3889 3890 ieee80211_send_action_csa(sdata, params); 3891 3892 break; 3893 #ifdef CONFIG_MAC80211_MESH 3894 case NL80211_IFTYPE_MESH_POINT: { 3895 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3896 3897 /* changes into another band are not supported */ 3898 if (sdata->vif.bss_conf.chanreq.oper.chan->band != 3899 params->chandef.chan->band) 3900 return -EINVAL; 3901 3902 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3903 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3904 if (!ifmsh->pre_value) 3905 ifmsh->pre_value = 1; 3906 else 3907 ifmsh->pre_value++; 3908 } 3909 3910 /* see comments in the NL80211_IFTYPE_AP block */ 3911 if (params->count > 1) { 3912 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3913 if (err < 0) { 3914 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3915 return err; 3916 } 3917 } 3918 3919 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3920 ieee80211_send_action_csa(sdata, params); 3921 3922 break; 3923 } 3924 #endif 3925 default: 3926 return -EOPNOTSUPP; 3927 } 3928 3929 return 0; 3930 } 3931 3932 static void ieee80211_color_change_abort(struct ieee80211_link_data *link) 3933 { 3934 link->conf->color_change_active = false; 3935 3936 ieee80211_free_next_beacon(link); 3937 3938 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id); 3939 } 3940 3941 static int 3942 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3943 struct cfg80211_csa_settings *params) 3944 { 3945 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3946 struct ieee80211_chan_req chanreq = { .oper = params->chandef }; 3947 struct ieee80211_local *local = sdata->local; 3948 struct ieee80211_channel_switch ch_switch = { 3949 .link_id = params->link_id, 3950 }; 3951 struct ieee80211_chanctx_conf *conf; 3952 struct ieee80211_chanctx *chanctx; 3953 struct ieee80211_bss_conf *link_conf; 3954 struct ieee80211_link_data *link_data; 3955 u64 changed = 0; 3956 u8 link_id = params->link_id; 3957 int err; 3958 3959 lockdep_assert_wiphy(local->hw.wiphy); 3960 3961 if (!list_empty(&local->roc_list) || local->scanning) 3962 return -EBUSY; 3963 3964 if (sdata->wdev.cac_started) 3965 return -EBUSY; 3966 3967 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 3968 return -EINVAL; 3969 3970 link_data = wiphy_dereference(wiphy, sdata->link[link_id]); 3971 if (!link_data) 3972 return -ENOLINK; 3973 3974 link_conf = link_data->conf; 3975 3976 if (chanreq.oper.punctured && !link_conf->eht_support) 3977 return -EINVAL; 3978 3979 /* don't allow another channel switch if one is already active. */ 3980 if (link_conf->csa_active) 3981 return -EBUSY; 3982 3983 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf); 3984 if (!conf) { 3985 err = -EBUSY; 3986 goto out; 3987 } 3988 3989 if (params->chandef.chan->freq_offset) { 3990 /* this may work, but is untested */ 3991 err = -EOPNOTSUPP; 3992 goto out; 3993 } 3994 3995 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3996 3997 ch_switch.timestamp = 0; 3998 ch_switch.device_timestamp = 0; 3999 ch_switch.block_tx = params->block_tx; 4000 ch_switch.chandef = chanreq.oper; 4001 ch_switch.count = params->count; 4002 4003 err = drv_pre_channel_switch(sdata, &ch_switch); 4004 if (err) 4005 goto out; 4006 4007 err = ieee80211_link_reserve_chanctx(link_data, &chanreq, 4008 chanctx->mode, 4009 params->radar_required); 4010 if (err) 4011 goto out; 4012 4013 /* if reservation is invalid then this will fail */ 4014 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1); 4015 if (err) { 4016 ieee80211_link_unreserve_chanctx(link_data); 4017 goto out; 4018 } 4019 4020 /* if there is a color change in progress, abort it */ 4021 if (link_conf->color_change_active) 4022 ieee80211_color_change_abort(link_data); 4023 4024 err = ieee80211_set_csa_beacon(link_data, params, &changed); 4025 if (err) { 4026 ieee80211_link_unreserve_chanctx(link_data); 4027 goto out; 4028 } 4029 4030 link_data->csa.chanreq = chanreq; 4031 link_conf->csa_active = true; 4032 4033 if (params->block_tx) 4034 ieee80211_vif_block_queues_csa(sdata); 4035 4036 cfg80211_ch_switch_started_notify(sdata->dev, 4037 &link_data->csa.chanreq.oper, link_id, 4038 params->count, params->block_tx); 4039 4040 if (changed) { 4041 ieee80211_link_info_change_notify(sdata, link_data, changed); 4042 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper); 4043 } else { 4044 /* if the beacon didn't change, we can finalize immediately */ 4045 ieee80211_csa_finalize(link_data); 4046 } 4047 4048 out: 4049 return err; 4050 } 4051 4052 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 4053 struct cfg80211_csa_settings *params) 4054 { 4055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4056 struct ieee80211_local *local = sdata->local; 4057 4058 lockdep_assert_wiphy(local->hw.wiphy); 4059 4060 return __ieee80211_channel_switch(wiphy, dev, params); 4061 } 4062 4063 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 4064 { 4065 lockdep_assert_wiphy(local->hw.wiphy); 4066 4067 local->roc_cookie_counter++; 4068 4069 /* wow, you wrapped 64 bits ... more likely a bug */ 4070 if (WARN_ON(local->roc_cookie_counter == 0)) 4071 local->roc_cookie_counter++; 4072 4073 return local->roc_cookie_counter; 4074 } 4075 4076 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 4077 u64 *cookie, gfp_t gfp) 4078 { 4079 unsigned long spin_flags; 4080 struct sk_buff *ack_skb; 4081 int id; 4082 4083 ack_skb = skb_copy(skb, gfp); 4084 if (!ack_skb) 4085 return -ENOMEM; 4086 4087 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 4088 id = idr_alloc(&local->ack_status_frames, ack_skb, 4089 1, 0x2000, GFP_ATOMIC); 4090 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 4091 4092 if (id < 0) { 4093 kfree_skb(ack_skb); 4094 return -ENOMEM; 4095 } 4096 4097 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 4098 IEEE80211_SKB_CB(skb)->status_data = id; 4099 4100 *cookie = ieee80211_mgmt_tx_cookie(local); 4101 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 4102 4103 return 0; 4104 } 4105 4106 static void 4107 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 4108 struct wireless_dev *wdev, 4109 struct mgmt_frame_regs *upd) 4110 { 4111 struct ieee80211_local *local = wiphy_priv(wiphy); 4112 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4113 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 4114 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 4115 bool global_change, intf_change; 4116 4117 global_change = 4118 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 4119 (local->rx_mcast_action_reg != 4120 !!(upd->global_mcast_stypes & action_mask)); 4121 local->probe_req_reg = upd->global_stypes & preq_mask; 4122 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4123 4124 intf_change = (sdata->vif.probe_req_reg != 4125 !!(upd->interface_stypes & preq_mask)) || 4126 (sdata->vif.rx_mcast_action_reg != 4127 !!(upd->interface_mcast_stypes & action_mask)); 4128 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4129 sdata->vif.rx_mcast_action_reg = 4130 upd->interface_mcast_stypes & action_mask; 4131 4132 if (!local->open_count) 4133 return; 4134 4135 if (intf_change && ieee80211_sdata_running(sdata)) 4136 drv_config_iface_filter(local, sdata, 4137 sdata->vif.probe_req_reg ? 4138 FIF_PROBE_REQ : 0, 4139 FIF_PROBE_REQ); 4140 4141 if (global_change) 4142 ieee80211_configure_filter(local); 4143 } 4144 4145 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4146 { 4147 struct ieee80211_local *local = wiphy_priv(wiphy); 4148 int ret; 4149 4150 if (local->started) 4151 return -EOPNOTSUPP; 4152 4153 ret = drv_set_antenna(local, tx_ant, rx_ant); 4154 if (ret) 4155 return ret; 4156 4157 local->rx_chains = hweight8(rx_ant); 4158 return 0; 4159 } 4160 4161 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4162 { 4163 struct ieee80211_local *local = wiphy_priv(wiphy); 4164 4165 return drv_get_antenna(local, tx_ant, rx_ant); 4166 } 4167 4168 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4169 struct net_device *dev, 4170 struct cfg80211_gtk_rekey_data *data) 4171 { 4172 struct ieee80211_local *local = wiphy_priv(wiphy); 4173 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4174 4175 if (!local->ops->set_rekey_data) 4176 return -EOPNOTSUPP; 4177 4178 drv_set_rekey_data(local, sdata, data); 4179 4180 return 0; 4181 } 4182 4183 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4184 const u8 *peer, u64 *cookie) 4185 { 4186 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4187 struct ieee80211_local *local = sdata->local; 4188 struct ieee80211_qos_hdr *nullfunc; 4189 struct sk_buff *skb; 4190 int size = sizeof(*nullfunc); 4191 __le16 fc; 4192 bool qos; 4193 struct ieee80211_tx_info *info; 4194 struct sta_info *sta; 4195 struct ieee80211_chanctx_conf *chanctx_conf; 4196 enum nl80211_band band; 4197 int ret; 4198 4199 /* the lock is needed to assign the cookie later */ 4200 lockdep_assert_wiphy(local->hw.wiphy); 4201 4202 rcu_read_lock(); 4203 sta = sta_info_get_bss(sdata, peer); 4204 if (!sta) { 4205 ret = -ENOLINK; 4206 goto unlock; 4207 } 4208 4209 qos = sta->sta.wme; 4210 4211 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4212 if (WARN_ON(!chanctx_conf)) { 4213 ret = -EINVAL; 4214 goto unlock; 4215 } 4216 band = chanctx_conf->def.chan->band; 4217 4218 if (qos) { 4219 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4220 IEEE80211_STYPE_QOS_NULLFUNC | 4221 IEEE80211_FCTL_FROMDS); 4222 } else { 4223 size -= 2; 4224 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4225 IEEE80211_STYPE_NULLFUNC | 4226 IEEE80211_FCTL_FROMDS); 4227 } 4228 4229 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4230 if (!skb) { 4231 ret = -ENOMEM; 4232 goto unlock; 4233 } 4234 4235 skb->dev = dev; 4236 4237 skb_reserve(skb, local->hw.extra_tx_headroom); 4238 4239 nullfunc = skb_put(skb, size); 4240 nullfunc->frame_control = fc; 4241 nullfunc->duration_id = 0; 4242 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4243 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4244 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4245 nullfunc->seq_ctrl = 0; 4246 4247 info = IEEE80211_SKB_CB(skb); 4248 4249 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4250 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4251 info->band = band; 4252 4253 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4254 skb->priority = 7; 4255 if (qos) 4256 nullfunc->qos_ctrl = cpu_to_le16(7); 4257 4258 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4259 if (ret) { 4260 kfree_skb(skb); 4261 goto unlock; 4262 } 4263 4264 local_bh_disable(); 4265 ieee80211_xmit(sdata, sta, skb); 4266 local_bh_enable(); 4267 4268 ret = 0; 4269 unlock: 4270 rcu_read_unlock(); 4271 4272 return ret; 4273 } 4274 4275 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4276 struct wireless_dev *wdev, 4277 unsigned int link_id, 4278 struct cfg80211_chan_def *chandef) 4279 { 4280 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4281 struct ieee80211_local *local = wiphy_priv(wiphy); 4282 struct ieee80211_chanctx_conf *chanctx_conf; 4283 struct ieee80211_link_data *link; 4284 int ret = -ENODATA; 4285 4286 rcu_read_lock(); 4287 link = rcu_dereference(sdata->link[link_id]); 4288 if (!link) { 4289 ret = -ENOLINK; 4290 goto out; 4291 } 4292 4293 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4294 if (chanctx_conf) { 4295 *chandef = link->conf->chanreq.oper; 4296 ret = 0; 4297 } else if (local->open_count > 0 && 4298 local->open_count == local->monitors && 4299 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4300 *chandef = local->monitor_chanreq.oper; 4301 ret = 0; 4302 } 4303 out: 4304 rcu_read_unlock(); 4305 4306 return ret; 4307 } 4308 4309 #ifdef CONFIG_PM 4310 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4311 { 4312 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4313 } 4314 #endif 4315 4316 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4317 struct net_device *dev, 4318 struct cfg80211_qos_map *qos_map) 4319 { 4320 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4321 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4322 4323 if (qos_map) { 4324 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4325 if (!new_qos_map) 4326 return -ENOMEM; 4327 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4328 } else { 4329 /* A NULL qos_map was passed to disable QoS mapping */ 4330 new_qos_map = NULL; 4331 } 4332 4333 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4334 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4335 if (old_qos_map) 4336 kfree_rcu(old_qos_map, rcu_head); 4337 4338 return 0; 4339 } 4340 4341 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4342 struct net_device *dev, 4343 unsigned int link_id, 4344 struct cfg80211_chan_def *chandef) 4345 { 4346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4347 struct ieee80211_link_data *link; 4348 struct ieee80211_chan_req chanreq = { .oper = *chandef }; 4349 int ret; 4350 u64 changed = 0; 4351 4352 link = sdata_dereference(sdata->link[link_id], sdata); 4353 4354 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed); 4355 if (ret == 0) 4356 ieee80211_link_info_change_notify(sdata, link, changed); 4357 4358 return ret; 4359 } 4360 4361 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4362 u8 tsid, const u8 *peer, u8 up, 4363 u16 admitted_time) 4364 { 4365 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4366 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4367 int ac = ieee802_1d_to_ac[up]; 4368 4369 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4370 return -EOPNOTSUPP; 4371 4372 if (!(sdata->wmm_acm & BIT(up))) 4373 return -EINVAL; 4374 4375 if (ifmgd->tx_tspec[ac].admitted_time) 4376 return -EBUSY; 4377 4378 if (admitted_time) { 4379 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4380 ifmgd->tx_tspec[ac].tsid = tsid; 4381 ifmgd->tx_tspec[ac].up = up; 4382 } 4383 4384 return 0; 4385 } 4386 4387 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4388 u8 tsid, const u8 *peer) 4389 { 4390 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4391 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4392 struct ieee80211_local *local = wiphy_priv(wiphy); 4393 int ac; 4394 4395 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4396 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4397 4398 /* skip unused entries */ 4399 if (!tx_tspec->admitted_time) 4400 continue; 4401 4402 if (tx_tspec->tsid != tsid) 4403 continue; 4404 4405 /* due to this new packets will be reassigned to non-ACM ACs */ 4406 tx_tspec->up = -1; 4407 4408 /* Make sure that all packets have been sent to avoid to 4409 * restore the QoS params on packets that are still on the 4410 * queues. 4411 */ 4412 synchronize_net(); 4413 ieee80211_flush_queues(local, sdata, false); 4414 4415 /* restore the normal QoS parameters 4416 * (unconditionally to avoid races) 4417 */ 4418 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4419 tx_tspec->downgraded = false; 4420 ieee80211_sta_handle_tspec_ac_params(sdata); 4421 4422 /* finally clear all the data */ 4423 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4424 4425 return 0; 4426 } 4427 4428 return -ENOENT; 4429 } 4430 4431 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4432 u8 inst_id, 4433 enum nl80211_nan_func_term_reason reason, 4434 gfp_t gfp) 4435 { 4436 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4437 struct cfg80211_nan_func *func; 4438 u64 cookie; 4439 4440 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4441 return; 4442 4443 spin_lock_bh(&sdata->u.nan.func_lock); 4444 4445 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4446 if (WARN_ON(!func)) { 4447 spin_unlock_bh(&sdata->u.nan.func_lock); 4448 return; 4449 } 4450 4451 cookie = func->cookie; 4452 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4453 4454 spin_unlock_bh(&sdata->u.nan.func_lock); 4455 4456 cfg80211_free_nan_func(func); 4457 4458 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4459 reason, cookie, gfp); 4460 } 4461 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4462 4463 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4464 struct cfg80211_nan_match_params *match, 4465 gfp_t gfp) 4466 { 4467 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4468 struct cfg80211_nan_func *func; 4469 4470 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4471 return; 4472 4473 spin_lock_bh(&sdata->u.nan.func_lock); 4474 4475 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4476 if (WARN_ON(!func)) { 4477 spin_unlock_bh(&sdata->u.nan.func_lock); 4478 return; 4479 } 4480 match->cookie = func->cookie; 4481 4482 spin_unlock_bh(&sdata->u.nan.func_lock); 4483 4484 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4485 } 4486 EXPORT_SYMBOL(ieee80211_nan_func_match); 4487 4488 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4489 struct net_device *dev, 4490 const bool enabled) 4491 { 4492 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4493 4494 sdata->u.ap.multicast_to_unicast = enabled; 4495 4496 return 0; 4497 } 4498 4499 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4500 struct txq_info *txqi) 4501 { 4502 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4503 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4504 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4505 } 4506 4507 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4508 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4509 txqstats->backlog_packets = txqi->tin.backlog_packets; 4510 } 4511 4512 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4513 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4514 txqstats->flows = txqi->tin.flows; 4515 } 4516 4517 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4518 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4519 txqstats->drops = txqi->cstats.drop_count; 4520 } 4521 4522 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4523 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4524 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4525 } 4526 4527 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4528 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4529 txqstats->overlimit = txqi->tin.overlimit; 4530 } 4531 4532 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4533 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4534 txqstats->collisions = txqi->tin.collisions; 4535 } 4536 4537 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4538 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4539 txqstats->tx_bytes = txqi->tin.tx_bytes; 4540 } 4541 4542 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4543 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4544 txqstats->tx_packets = txqi->tin.tx_packets; 4545 } 4546 } 4547 4548 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4549 struct wireless_dev *wdev, 4550 struct cfg80211_txq_stats *txqstats) 4551 { 4552 struct ieee80211_local *local = wiphy_priv(wiphy); 4553 struct ieee80211_sub_if_data *sdata; 4554 int ret = 0; 4555 4556 spin_lock_bh(&local->fq.lock); 4557 rcu_read_lock(); 4558 4559 if (wdev) { 4560 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4561 if (!sdata->vif.txq) { 4562 ret = 1; 4563 goto out; 4564 } 4565 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4566 } else { 4567 /* phy stats */ 4568 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4569 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4570 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4571 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4572 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4573 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4574 txqstats->backlog_packets = local->fq.backlog; 4575 txqstats->backlog_bytes = local->fq.memory_usage; 4576 txqstats->overlimit = local->fq.overlimit; 4577 txqstats->overmemory = local->fq.overmemory; 4578 txqstats->collisions = local->fq.collisions; 4579 txqstats->max_flows = local->fq.flows_cnt; 4580 } 4581 4582 out: 4583 rcu_read_unlock(); 4584 spin_unlock_bh(&local->fq.lock); 4585 4586 return ret; 4587 } 4588 4589 static int 4590 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4591 struct net_device *dev, 4592 struct cfg80211_ftm_responder_stats *ftm_stats) 4593 { 4594 struct ieee80211_local *local = wiphy_priv(wiphy); 4595 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4596 4597 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4598 } 4599 4600 static int 4601 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4602 struct cfg80211_pmsr_request *request) 4603 { 4604 struct ieee80211_local *local = wiphy_priv(wiphy); 4605 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4606 4607 return drv_start_pmsr(local, sdata, request); 4608 } 4609 4610 static void 4611 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4612 struct cfg80211_pmsr_request *request) 4613 { 4614 struct ieee80211_local *local = wiphy_priv(wiphy); 4615 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4616 4617 return drv_abort_pmsr(local, sdata, request); 4618 } 4619 4620 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4621 struct net_device *dev, 4622 struct cfg80211_tid_config *tid_conf) 4623 { 4624 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4625 struct sta_info *sta; 4626 4627 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4628 4629 if (!sdata->local->ops->set_tid_config) 4630 return -EOPNOTSUPP; 4631 4632 if (!tid_conf->peer) 4633 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4634 4635 sta = sta_info_get_bss(sdata, tid_conf->peer); 4636 if (!sta) 4637 return -ENOENT; 4638 4639 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4640 } 4641 4642 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4643 struct net_device *dev, 4644 const u8 *peer, u8 tids) 4645 { 4646 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4647 struct sta_info *sta; 4648 4649 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4650 4651 if (!sdata->local->ops->reset_tid_config) 4652 return -EOPNOTSUPP; 4653 4654 if (!peer) 4655 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4656 4657 sta = sta_info_get_bss(sdata, peer); 4658 if (!sta) 4659 return -ENOENT; 4660 4661 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4662 } 4663 4664 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4665 struct cfg80211_sar_specs *sar) 4666 { 4667 struct ieee80211_local *local = wiphy_priv(wiphy); 4668 4669 if (!local->ops->set_sar_specs) 4670 return -EOPNOTSUPP; 4671 4672 return local->ops->set_sar_specs(&local->hw, sar); 4673 } 4674 4675 static int 4676 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link, 4677 u64 *changed) 4678 { 4679 struct ieee80211_sub_if_data *sdata = link->sdata; 4680 4681 switch (sdata->vif.type) { 4682 case NL80211_IFTYPE_AP: { 4683 int ret; 4684 4685 if (!link->u.ap.next_beacon) 4686 return -EINVAL; 4687 4688 ret = ieee80211_assign_beacon(sdata, link, 4689 link->u.ap.next_beacon, 4690 NULL, NULL, changed); 4691 ieee80211_free_next_beacon(link); 4692 4693 if (ret < 0) 4694 return ret; 4695 4696 break; 4697 } 4698 default: 4699 WARN_ON_ONCE(1); 4700 return -EINVAL; 4701 } 4702 4703 return 0; 4704 } 4705 4706 static int 4707 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link, 4708 struct cfg80211_color_change_settings *params, 4709 u64 *changed) 4710 { 4711 struct ieee80211_sub_if_data *sdata = link->sdata; 4712 struct ieee80211_color_change_settings color_change = {}; 4713 int err; 4714 4715 switch (sdata->vif.type) { 4716 case NL80211_IFTYPE_AP: 4717 link->u.ap.next_beacon = 4718 cfg80211_beacon_dup(¶ms->beacon_next); 4719 if (!link->u.ap.next_beacon) 4720 return -ENOMEM; 4721 4722 if (params->count <= 1) 4723 break; 4724 4725 color_change.counter_offset_beacon = 4726 params->counter_offset_beacon; 4727 color_change.counter_offset_presp = 4728 params->counter_offset_presp; 4729 color_change.count = params->count; 4730 4731 err = ieee80211_assign_beacon(sdata, link, 4732 ¶ms->beacon_color_change, 4733 NULL, &color_change, changed); 4734 if (err < 0) { 4735 ieee80211_free_next_beacon(link); 4736 return err; 4737 } 4738 break; 4739 default: 4740 return -EOPNOTSUPP; 4741 } 4742 4743 return 0; 4744 } 4745 4746 static void 4747 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link, 4748 u8 color, int enable, u64 changed) 4749 { 4750 struct ieee80211_sub_if_data *sdata = link->sdata; 4751 4752 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4753 4754 link->conf->he_bss_color.color = color; 4755 link->conf->he_bss_color.enabled = enable; 4756 changed |= BSS_CHANGED_HE_BSS_COLOR; 4757 4758 ieee80211_link_info_change_notify(sdata, link, changed); 4759 4760 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4761 struct ieee80211_sub_if_data *child; 4762 4763 list_for_each_entry(child, &sdata->local->interfaces, list) { 4764 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4765 child->vif.bss_conf.he_bss_color.color = color; 4766 child->vif.bss_conf.he_bss_color.enabled = enable; 4767 ieee80211_link_info_change_notify(child, 4768 &child->deflink, 4769 BSS_CHANGED_HE_BSS_COLOR); 4770 } 4771 } 4772 } 4773 } 4774 4775 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link) 4776 { 4777 struct ieee80211_sub_if_data *sdata = link->sdata; 4778 struct ieee80211_local *local = sdata->local; 4779 u64 changed = 0; 4780 int err; 4781 4782 lockdep_assert_wiphy(local->hw.wiphy); 4783 4784 link->conf->color_change_active = false; 4785 4786 err = ieee80211_set_after_color_change_beacon(link, &changed); 4787 if (err) { 4788 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id); 4789 return err; 4790 } 4791 4792 ieee80211_color_change_bss_config_notify(link, 4793 link->conf->color_change_color, 4794 1, changed); 4795 cfg80211_color_change_notify(sdata->dev, link->link_id); 4796 4797 return 0; 4798 } 4799 4800 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4801 struct wiphy_work *work) 4802 { 4803 struct ieee80211_link_data *link = 4804 container_of(work, struct ieee80211_link_data, 4805 color_change_finalize_work); 4806 struct ieee80211_sub_if_data *sdata = link->sdata; 4807 struct ieee80211_bss_conf *link_conf = link->conf; 4808 struct ieee80211_local *local = sdata->local; 4809 4810 lockdep_assert_wiphy(local->hw.wiphy); 4811 4812 /* AP might have been stopped while waiting for the lock. */ 4813 if (!link_conf->color_change_active) 4814 return; 4815 4816 if (!ieee80211_sdata_running(sdata)) 4817 return; 4818 4819 ieee80211_color_change_finalize(link); 4820 } 4821 4822 void ieee80211_color_collision_detection_work(struct work_struct *work) 4823 { 4824 struct delayed_work *delayed_work = to_delayed_work(work); 4825 struct ieee80211_link_data *link = 4826 container_of(delayed_work, struct ieee80211_link_data, 4827 color_collision_detect_work); 4828 struct ieee80211_sub_if_data *sdata = link->sdata; 4829 4830 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap, 4831 link->link_id); 4832 } 4833 4834 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id) 4835 { 4836 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4837 struct ieee80211_link_data *link; 4838 4839 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4840 return; 4841 4842 rcu_read_lock(); 4843 4844 link = rcu_dereference(sdata->link[link_id]); 4845 if (WARN_ON(!link)) { 4846 rcu_read_unlock(); 4847 return; 4848 } 4849 4850 wiphy_work_queue(sdata->local->hw.wiphy, 4851 &link->color_change_finalize_work); 4852 4853 rcu_read_unlock(); 4854 } 4855 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4856 4857 void 4858 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4859 u64 color_bitmap, u8 link_id) 4860 { 4861 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4862 struct ieee80211_link_data *link; 4863 4864 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4865 return; 4866 4867 rcu_read_lock(); 4868 4869 link = rcu_dereference(sdata->link[link_id]); 4870 if (WARN_ON(!link)) { 4871 rcu_read_unlock(); 4872 return; 4873 } 4874 4875 if (link->conf->color_change_active || link->conf->csa_active) { 4876 rcu_read_unlock(); 4877 return; 4878 } 4879 4880 if (delayed_work_pending(&link->color_collision_detect_work)) { 4881 rcu_read_unlock(); 4882 return; 4883 } 4884 4885 link->color_bitmap = color_bitmap; 4886 /* queue the color collision detection event every 500 ms in order to 4887 * avoid sending too much netlink messages to userspace. 4888 */ 4889 ieee80211_queue_delayed_work(&sdata->local->hw, 4890 &link->color_collision_detect_work, 4891 msecs_to_jiffies(500)); 4892 4893 rcu_read_unlock(); 4894 } 4895 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4896 4897 static int 4898 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4899 struct cfg80211_color_change_settings *params) 4900 { 4901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4902 struct ieee80211_local *local = sdata->local; 4903 struct ieee80211_bss_conf *link_conf; 4904 struct ieee80211_link_data *link; 4905 u8 link_id = params->link_id; 4906 u64 changed = 0; 4907 int err; 4908 4909 lockdep_assert_wiphy(local->hw.wiphy); 4910 4911 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) 4912 return -EINVAL; 4913 4914 link = wiphy_dereference(wiphy, sdata->link[link_id]); 4915 if (!link) 4916 return -ENOLINK; 4917 4918 link_conf = link->conf; 4919 4920 if (link_conf->nontransmitted) 4921 return -EINVAL; 4922 4923 /* don't allow another color change if one is already active or if csa 4924 * is active 4925 */ 4926 if (link_conf->color_change_active || link_conf->csa_active) { 4927 err = -EBUSY; 4928 goto out; 4929 } 4930 4931 err = ieee80211_set_color_change_beacon(link, params, &changed); 4932 if (err) 4933 goto out; 4934 4935 link_conf->color_change_active = true; 4936 link_conf->color_change_color = params->color; 4937 4938 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id); 4939 4940 if (changed) 4941 ieee80211_color_change_bss_config_notify(link, 0, 0, changed); 4942 else 4943 /* if the beacon didn't change, we can finalize immediately */ 4944 ieee80211_color_change_finalize(link); 4945 4946 out: 4947 4948 return err; 4949 } 4950 4951 static int 4952 ieee80211_set_radar_background(struct wiphy *wiphy, 4953 struct cfg80211_chan_def *chandef) 4954 { 4955 struct ieee80211_local *local = wiphy_priv(wiphy); 4956 4957 if (!local->ops->set_radar_background) 4958 return -EOPNOTSUPP; 4959 4960 return local->ops->set_radar_background(&local->hw, chandef); 4961 } 4962 4963 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4964 struct wireless_dev *wdev, 4965 unsigned int link_id) 4966 { 4967 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4968 4969 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4970 4971 if (wdev->use_4addr) 4972 return -EOPNOTSUPP; 4973 4974 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4975 } 4976 4977 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4978 struct wireless_dev *wdev, 4979 unsigned int link_id) 4980 { 4981 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4982 4983 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4984 4985 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4986 } 4987 4988 static int 4989 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4990 struct link_station_parameters *params) 4991 { 4992 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4993 struct ieee80211_local *local = wiphy_priv(wiphy); 4994 struct sta_info *sta; 4995 int ret; 4996 4997 lockdep_assert_wiphy(local->hw.wiphy); 4998 4999 sta = sta_info_get_bss(sdata, params->mld_mac); 5000 if (!sta) 5001 return -ENOENT; 5002 5003 if (!sta->sta.valid_links) 5004 return -EINVAL; 5005 5006 if (sta->sta.valid_links & BIT(params->link_id)) 5007 return -EALREADY; 5008 5009 ret = ieee80211_sta_allocate_link(sta, params->link_id); 5010 if (ret) 5011 return ret; 5012 5013 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params); 5014 if (ret) { 5015 ieee80211_sta_free_link(sta, params->link_id); 5016 return ret; 5017 } 5018 5019 /* ieee80211_sta_activate_link frees the link upon failure */ 5020 return ieee80211_sta_activate_link(sta, params->link_id); 5021 } 5022 5023 static int 5024 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 5025 struct link_station_parameters *params) 5026 { 5027 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5028 struct ieee80211_local *local = wiphy_priv(wiphy); 5029 struct sta_info *sta; 5030 5031 lockdep_assert_wiphy(local->hw.wiphy); 5032 5033 sta = sta_info_get_bss(sdata, params->mld_mac); 5034 if (!sta) 5035 return -ENOENT; 5036 5037 if (!(sta->sta.valid_links & BIT(params->link_id))) 5038 return -EINVAL; 5039 5040 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY, 5041 params); 5042 } 5043 5044 static int 5045 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 5046 struct link_station_del_parameters *params) 5047 { 5048 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5049 struct sta_info *sta; 5050 5051 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5052 5053 sta = sta_info_get_bss(sdata, params->mld_mac); 5054 if (!sta) 5055 return -ENOENT; 5056 5057 if (!(sta->sta.valid_links & BIT(params->link_id))) 5058 return -EINVAL; 5059 5060 /* must not create a STA without links */ 5061 if (sta->sta.valid_links == BIT(params->link_id)) 5062 return -EINVAL; 5063 5064 ieee80211_sta_remove_link(sta, params->link_id); 5065 5066 return 0; 5067 } 5068 5069 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 5070 struct net_device *dev, 5071 struct cfg80211_set_hw_timestamp *hwts) 5072 { 5073 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5074 struct ieee80211_local *local = sdata->local; 5075 5076 if (!local->ops->set_hw_timestamp) 5077 return -EOPNOTSUPP; 5078 5079 if (!check_sdata_in_driver(sdata)) 5080 return -EIO; 5081 5082 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 5083 } 5084 5085 static int 5086 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev, 5087 struct cfg80211_ttlm_params *params) 5088 { 5089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 5090 5091 lockdep_assert_wiphy(sdata->local->hw.wiphy); 5092 5093 return ieee80211_req_neg_ttlm(sdata, params); 5094 } 5095 5096 const struct cfg80211_ops mac80211_config_ops = { 5097 .add_virtual_intf = ieee80211_add_iface, 5098 .del_virtual_intf = ieee80211_del_iface, 5099 .change_virtual_intf = ieee80211_change_iface, 5100 .start_p2p_device = ieee80211_start_p2p_device, 5101 .stop_p2p_device = ieee80211_stop_p2p_device, 5102 .add_key = ieee80211_add_key, 5103 .del_key = ieee80211_del_key, 5104 .get_key = ieee80211_get_key, 5105 .set_default_key = ieee80211_config_default_key, 5106 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 5107 .set_default_beacon_key = ieee80211_config_default_beacon_key, 5108 .start_ap = ieee80211_start_ap, 5109 .change_beacon = ieee80211_change_beacon, 5110 .stop_ap = ieee80211_stop_ap, 5111 .add_station = ieee80211_add_station, 5112 .del_station = ieee80211_del_station, 5113 .change_station = ieee80211_change_station, 5114 .get_station = ieee80211_get_station, 5115 .dump_station = ieee80211_dump_station, 5116 .dump_survey = ieee80211_dump_survey, 5117 #ifdef CONFIG_MAC80211_MESH 5118 .add_mpath = ieee80211_add_mpath, 5119 .del_mpath = ieee80211_del_mpath, 5120 .change_mpath = ieee80211_change_mpath, 5121 .get_mpath = ieee80211_get_mpath, 5122 .dump_mpath = ieee80211_dump_mpath, 5123 .get_mpp = ieee80211_get_mpp, 5124 .dump_mpp = ieee80211_dump_mpp, 5125 .update_mesh_config = ieee80211_update_mesh_config, 5126 .get_mesh_config = ieee80211_get_mesh_config, 5127 .join_mesh = ieee80211_join_mesh, 5128 .leave_mesh = ieee80211_leave_mesh, 5129 #endif 5130 .join_ocb = ieee80211_join_ocb, 5131 .leave_ocb = ieee80211_leave_ocb, 5132 .change_bss = ieee80211_change_bss, 5133 .inform_bss = ieee80211_inform_bss, 5134 .set_txq_params = ieee80211_set_txq_params, 5135 .set_monitor_channel = ieee80211_set_monitor_channel, 5136 .suspend = ieee80211_suspend, 5137 .resume = ieee80211_resume, 5138 .scan = ieee80211_scan, 5139 .abort_scan = ieee80211_abort_scan, 5140 .sched_scan_start = ieee80211_sched_scan_start, 5141 .sched_scan_stop = ieee80211_sched_scan_stop, 5142 .auth = ieee80211_auth, 5143 .assoc = ieee80211_assoc, 5144 .deauth = ieee80211_deauth, 5145 .disassoc = ieee80211_disassoc, 5146 .join_ibss = ieee80211_join_ibss, 5147 .leave_ibss = ieee80211_leave_ibss, 5148 .set_mcast_rate = ieee80211_set_mcast_rate, 5149 .set_wiphy_params = ieee80211_set_wiphy_params, 5150 .set_tx_power = ieee80211_set_tx_power, 5151 .get_tx_power = ieee80211_get_tx_power, 5152 .rfkill_poll = ieee80211_rfkill_poll, 5153 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 5154 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 5155 .set_power_mgmt = ieee80211_set_power_mgmt, 5156 .set_bitrate_mask = ieee80211_set_bitrate_mask, 5157 .remain_on_channel = ieee80211_remain_on_channel, 5158 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 5159 .mgmt_tx = ieee80211_mgmt_tx, 5160 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 5161 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 5162 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 5163 .update_mgmt_frame_registrations = 5164 ieee80211_update_mgmt_frame_registrations, 5165 .set_antenna = ieee80211_set_antenna, 5166 .get_antenna = ieee80211_get_antenna, 5167 .set_rekey_data = ieee80211_set_rekey_data, 5168 .tdls_oper = ieee80211_tdls_oper, 5169 .tdls_mgmt = ieee80211_tdls_mgmt, 5170 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5171 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5172 .probe_client = ieee80211_probe_client, 5173 .set_noack_map = ieee80211_set_noack_map, 5174 #ifdef CONFIG_PM 5175 .set_wakeup = ieee80211_set_wakeup, 5176 #endif 5177 .get_channel = ieee80211_cfg_get_channel, 5178 .start_radar_detection = ieee80211_start_radar_detection, 5179 .end_cac = ieee80211_end_cac, 5180 .channel_switch = ieee80211_channel_switch, 5181 .set_qos_map = ieee80211_set_qos_map, 5182 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5183 .add_tx_ts = ieee80211_add_tx_ts, 5184 .del_tx_ts = ieee80211_del_tx_ts, 5185 .start_nan = ieee80211_start_nan, 5186 .stop_nan = ieee80211_stop_nan, 5187 .nan_change_conf = ieee80211_nan_change_conf, 5188 .add_nan_func = ieee80211_add_nan_func, 5189 .del_nan_func = ieee80211_del_nan_func, 5190 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5191 .tx_control_port = ieee80211_tx_control_port, 5192 .get_txq_stats = ieee80211_get_txq_stats, 5193 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5194 .start_pmsr = ieee80211_start_pmsr, 5195 .abort_pmsr = ieee80211_abort_pmsr, 5196 .probe_mesh_link = ieee80211_probe_mesh_link, 5197 .set_tid_config = ieee80211_set_tid_config, 5198 .reset_tid_config = ieee80211_reset_tid_config, 5199 .set_sar_specs = ieee80211_set_sar_specs, 5200 .color_change = ieee80211_color_change, 5201 .set_radar_background = ieee80211_set_radar_background, 5202 .add_intf_link = ieee80211_add_intf_link, 5203 .del_intf_link = ieee80211_del_intf_link, 5204 .add_link_station = ieee80211_add_link_station, 5205 .mod_link_station = ieee80211_mod_link_station, 5206 .del_link_station = ieee80211_del_link_station, 5207 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5208 .set_ttlm = ieee80211_set_ttlm, 5209 .get_radio_mask = ieee80211_get_radio_mask, 5210 }; 5211