1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2022 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static struct ieee80211_link_data * 27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, 28 bool require_valid) 29 { 30 struct ieee80211_link_data *link; 31 32 if (link_id < 0) { 33 /* 34 * For keys, if sdata is not an MLD, we might not use 35 * the return value at all (if it's not a pairwise key), 36 * so in that case (require_valid==false) don't error. 37 */ 38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif)) 39 return ERR_PTR(-EINVAL); 40 41 return &sdata->deflink; 42 } 43 44 link = sdata_dereference(sdata->link[link_id], sdata); 45 if (!link) 46 return ERR_PTR(-ENOLINK); 47 return link; 48 } 49 50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 51 struct vif_params *params) 52 { 53 bool mu_mimo_groups = false; 54 bool mu_mimo_follow = false; 55 56 if (params->vht_mumimo_groups) { 57 u64 membership; 58 59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 60 61 memcpy(sdata->vif.bss_conf.mu_group.membership, 62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 63 memcpy(sdata->vif.bss_conf.mu_group.position, 64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 65 WLAN_USER_POSITION_LEN); 66 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 67 BSS_CHANGED_MU_GROUPS); 68 /* don't care about endianness - just check for 0 */ 69 memcpy(&membership, params->vht_mumimo_groups, 70 WLAN_MEMBERSHIP_LEN); 71 mu_mimo_groups = membership != 0; 72 } 73 74 if (params->vht_mumimo_follow_addr) { 75 mu_mimo_follow = 76 is_valid_ether_addr(params->vht_mumimo_follow_addr); 77 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 78 params->vht_mumimo_follow_addr); 79 } 80 81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 82 } 83 84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 85 struct vif_params *params) 86 { 87 struct ieee80211_local *local = sdata->local; 88 struct ieee80211_sub_if_data *monitor_sdata; 89 90 /* check flags first */ 91 if (params->flags && ieee80211_sdata_running(sdata)) { 92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 93 94 /* 95 * Prohibit MONITOR_FLAG_COOK_FRAMES and 96 * MONITOR_FLAG_ACTIVE to be changed while the 97 * interface is up. 98 * Else we would need to add a lot of cruft 99 * to update everything: 100 * cooked_mntrs, monitor and all fif_* counters 101 * reconfigure hardware 102 */ 103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 104 return -EBUSY; 105 } 106 107 /* also validate MU-MIMO change */ 108 monitor_sdata = wiphy_dereference(local->hw.wiphy, 109 local->monitor_sdata); 110 111 if (!monitor_sdata && 112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 113 return -EOPNOTSUPP; 114 115 /* apply all changes now - no failures allowed */ 116 117 if (monitor_sdata) 118 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 119 120 if (params->flags) { 121 if (ieee80211_sdata_running(sdata)) { 122 ieee80211_adjust_monitor_flags(sdata, -1); 123 sdata->u.mntr.flags = params->flags; 124 ieee80211_adjust_monitor_flags(sdata, 1); 125 126 ieee80211_configure_filter(local); 127 } else { 128 /* 129 * Because the interface is down, ieee80211_do_stop 130 * and ieee80211_do_open take care of "everything" 131 * mentioned in the comment above. 132 */ 133 sdata->u.mntr.flags = params->flags; 134 } 135 } 136 137 return 0; 138 } 139 140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 141 struct cfg80211_mbssid_config params, 142 struct ieee80211_bss_conf *link_conf) 143 { 144 struct ieee80211_sub_if_data *tx_sdata; 145 146 sdata->vif.mbssid_tx_vif = NULL; 147 link_conf->bssid_index = 0; 148 link_conf->nontransmitted = false; 149 link_conf->ema_ap = false; 150 link_conf->bssid_indicator = 0; 151 152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 153 return -EINVAL; 154 155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 156 if (!tx_sdata) 157 return -EINVAL; 158 159 if (tx_sdata == sdata) { 160 sdata->vif.mbssid_tx_vif = &sdata->vif; 161 } else { 162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 163 link_conf->nontransmitted = true; 164 link_conf->bssid_index = params.index; 165 } 166 if (params.ema) 167 link_conf->ema_ap = true; 168 169 return 0; 170 } 171 172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 173 const char *name, 174 unsigned char name_assign_type, 175 enum nl80211_iftype type, 176 struct vif_params *params) 177 { 178 struct ieee80211_local *local = wiphy_priv(wiphy); 179 struct wireless_dev *wdev; 180 struct ieee80211_sub_if_data *sdata; 181 int err; 182 183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 184 if (err) 185 return ERR_PTR(err); 186 187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 188 189 if (type == NL80211_IFTYPE_MONITOR) { 190 err = ieee80211_set_mon_options(sdata, params); 191 if (err) { 192 ieee80211_if_remove(sdata); 193 return NULL; 194 } 195 } 196 197 return wdev; 198 } 199 200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 201 { 202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 203 204 return 0; 205 } 206 207 static int ieee80211_change_iface(struct wiphy *wiphy, 208 struct net_device *dev, 209 enum nl80211_iftype type, 210 struct vif_params *params) 211 { 212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 213 struct ieee80211_local *local = sdata->local; 214 struct sta_info *sta; 215 int ret; 216 217 lockdep_assert_wiphy(local->hw.wiphy); 218 219 ret = ieee80211_if_change_type(sdata, type); 220 if (ret) 221 return ret; 222 223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 225 ieee80211_check_fast_rx_iface(sdata); 226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 228 229 if (params->use_4addr == ifmgd->use_4addr) 230 return 0; 231 232 /* FIXME: no support for 4-addr MLO yet */ 233 if (ieee80211_vif_is_mld(&sdata->vif)) 234 return -EOPNOTSUPP; 235 236 sdata->u.mgd.use_4addr = params->use_4addr; 237 if (!ifmgd->associated) 238 return 0; 239 240 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); 241 if (sta) 242 drv_sta_set_4addr(local, sdata, &sta->sta, 243 params->use_4addr); 244 245 if (params->use_4addr) 246 ieee80211_send_4addr_nullfunc(local, sdata); 247 } 248 249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 250 ret = ieee80211_set_mon_options(sdata, params); 251 if (ret) 252 return ret; 253 } 254 255 return 0; 256 } 257 258 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 259 struct wireless_dev *wdev) 260 { 261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 262 int ret; 263 264 lockdep_assert_wiphy(sdata->local->hw.wiphy); 265 266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 267 if (ret < 0) 268 return ret; 269 270 return ieee80211_do_open(wdev, true); 271 } 272 273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 274 struct wireless_dev *wdev) 275 { 276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 277 } 278 279 static int ieee80211_start_nan(struct wiphy *wiphy, 280 struct wireless_dev *wdev, 281 struct cfg80211_nan_conf *conf) 282 { 283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 284 int ret; 285 286 lockdep_assert_wiphy(sdata->local->hw.wiphy); 287 288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 289 if (ret < 0) 290 return ret; 291 292 ret = ieee80211_do_open(wdev, true); 293 if (ret) 294 return ret; 295 296 ret = drv_start_nan(sdata->local, sdata, conf); 297 if (ret) 298 ieee80211_sdata_stop(sdata); 299 300 sdata->u.nan.conf = *conf; 301 302 return ret; 303 } 304 305 static void ieee80211_stop_nan(struct wiphy *wiphy, 306 struct wireless_dev *wdev) 307 { 308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 309 310 drv_stop_nan(sdata->local, sdata); 311 ieee80211_sdata_stop(sdata); 312 } 313 314 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 315 struct wireless_dev *wdev, 316 struct cfg80211_nan_conf *conf, 317 u32 changes) 318 { 319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 320 struct cfg80211_nan_conf new_conf; 321 int ret = 0; 322 323 if (sdata->vif.type != NL80211_IFTYPE_NAN) 324 return -EOPNOTSUPP; 325 326 if (!ieee80211_sdata_running(sdata)) 327 return -ENETDOWN; 328 329 new_conf = sdata->u.nan.conf; 330 331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 332 new_conf.master_pref = conf->master_pref; 333 334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 335 new_conf.bands = conf->bands; 336 337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 338 if (!ret) 339 sdata->u.nan.conf = new_conf; 340 341 return ret; 342 } 343 344 static int ieee80211_add_nan_func(struct wiphy *wiphy, 345 struct wireless_dev *wdev, 346 struct cfg80211_nan_func *nan_func) 347 { 348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 349 int ret; 350 351 if (sdata->vif.type != NL80211_IFTYPE_NAN) 352 return -EOPNOTSUPP; 353 354 if (!ieee80211_sdata_running(sdata)) 355 return -ENETDOWN; 356 357 spin_lock_bh(&sdata->u.nan.func_lock); 358 359 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 361 GFP_ATOMIC); 362 spin_unlock_bh(&sdata->u.nan.func_lock); 363 364 if (ret < 0) 365 return ret; 366 367 nan_func->instance_id = ret; 368 369 WARN_ON(nan_func->instance_id == 0); 370 371 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 372 if (ret) { 373 spin_lock_bh(&sdata->u.nan.func_lock); 374 idr_remove(&sdata->u.nan.function_inst_ids, 375 nan_func->instance_id); 376 spin_unlock_bh(&sdata->u.nan.func_lock); 377 } 378 379 return ret; 380 } 381 382 static struct cfg80211_nan_func * 383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 384 u64 cookie) 385 { 386 struct cfg80211_nan_func *func; 387 int id; 388 389 lockdep_assert_held(&sdata->u.nan.func_lock); 390 391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 392 if (func->cookie == cookie) 393 return func; 394 } 395 396 return NULL; 397 } 398 399 static void ieee80211_del_nan_func(struct wiphy *wiphy, 400 struct wireless_dev *wdev, u64 cookie) 401 { 402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 403 struct cfg80211_nan_func *func; 404 u8 instance_id = 0; 405 406 if (sdata->vif.type != NL80211_IFTYPE_NAN || 407 !ieee80211_sdata_running(sdata)) 408 return; 409 410 spin_lock_bh(&sdata->u.nan.func_lock); 411 412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 413 if (func) 414 instance_id = func->instance_id; 415 416 spin_unlock_bh(&sdata->u.nan.func_lock); 417 418 if (instance_id) 419 drv_del_nan_func(sdata->local, sdata, instance_id); 420 } 421 422 static int ieee80211_set_noack_map(struct wiphy *wiphy, 423 struct net_device *dev, 424 u16 noack_map) 425 { 426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 427 428 sdata->noack_map = noack_map; 429 430 ieee80211_check_fast_xmit_iface(sdata); 431 432 return 0; 433 } 434 435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 436 const u8 *mac_addr, u8 key_idx) 437 { 438 struct ieee80211_local *local = sdata->local; 439 struct ieee80211_key *key; 440 struct sta_info *sta; 441 int ret = -EINVAL; 442 443 if (!wiphy_ext_feature_isset(local->hw.wiphy, 444 NL80211_EXT_FEATURE_EXT_KEY_ID)) 445 return -EINVAL; 446 447 sta = sta_info_get_bss(sdata, mac_addr); 448 449 if (!sta) 450 return -EINVAL; 451 452 if (sta->ptk_idx == key_idx) 453 return 0; 454 455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); 456 457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 458 ret = ieee80211_set_tx_key(key); 459 460 return ret; 461 } 462 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 464 int link_id, u8 key_idx, bool pairwise, 465 const u8 *mac_addr, struct key_params *params) 466 { 467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 468 struct ieee80211_link_data *link = 469 ieee80211_link_or_deflink(sdata, link_id, false); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta = NULL; 472 struct ieee80211_key *key; 473 474 lockdep_assert_wiphy(local->hw.wiphy); 475 476 if (!ieee80211_sdata_running(sdata)) 477 return -ENETDOWN; 478 479 if (IS_ERR(link)) 480 return PTR_ERR(link); 481 482 if (pairwise && params->mode == NL80211_KEY_SET_TX) 483 return ieee80211_set_tx(sdata, mac_addr, key_idx); 484 485 /* reject WEP and TKIP keys if WEP failed to initialize */ 486 switch (params->cipher) { 487 case WLAN_CIPHER_SUITE_WEP40: 488 case WLAN_CIPHER_SUITE_TKIP: 489 case WLAN_CIPHER_SUITE_WEP104: 490 if (link_id >= 0) 491 return -EINVAL; 492 if (WARN_ON_ONCE(fips_enabled)) 493 return -EINVAL; 494 break; 495 default: 496 break; 497 } 498 499 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 500 params->key, params->seq_len, params->seq); 501 if (IS_ERR(key)) 502 return PTR_ERR(key); 503 504 key->conf.link_id = link_id; 505 506 if (pairwise) 507 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 508 509 if (params->mode == NL80211_KEY_NO_TX) 510 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 511 512 if (mac_addr) { 513 sta = sta_info_get_bss(sdata, mac_addr); 514 /* 515 * The ASSOC test makes sure the driver is ready to 516 * receive the key. When wpa_supplicant has roamed 517 * using FT, it attempts to set the key before 518 * association has completed, this rejects that attempt 519 * so it will set the key again after association. 520 * 521 * TODO: accept the key if we have a station entry and 522 * add it to the device after the station. 523 */ 524 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 525 ieee80211_key_free_unused(key); 526 return -ENOENT; 527 } 528 } 529 530 switch (sdata->vif.type) { 531 case NL80211_IFTYPE_STATION: 532 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 533 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 534 break; 535 case NL80211_IFTYPE_AP: 536 case NL80211_IFTYPE_AP_VLAN: 537 /* Keys without a station are used for TX only */ 538 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 539 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 540 break; 541 case NL80211_IFTYPE_ADHOC: 542 /* no MFP (yet) */ 543 break; 544 case NL80211_IFTYPE_MESH_POINT: 545 #ifdef CONFIG_MAC80211_MESH 546 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 547 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 548 break; 549 #endif 550 case NL80211_IFTYPE_WDS: 551 case NL80211_IFTYPE_MONITOR: 552 case NL80211_IFTYPE_P2P_DEVICE: 553 case NL80211_IFTYPE_NAN: 554 case NL80211_IFTYPE_UNSPECIFIED: 555 case NUM_NL80211_IFTYPES: 556 case NL80211_IFTYPE_P2P_CLIENT: 557 case NL80211_IFTYPE_P2P_GO: 558 case NL80211_IFTYPE_OCB: 559 /* shouldn't happen */ 560 WARN_ON_ONCE(1); 561 break; 562 } 563 564 return ieee80211_key_link(key, link, sta); 565 } 566 567 static struct ieee80211_key * 568 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, 569 u8 key_idx, bool pairwise, const u8 *mac_addr) 570 { 571 struct ieee80211_local *local __maybe_unused = sdata->local; 572 struct ieee80211_link_data *link = &sdata->deflink; 573 struct ieee80211_key *key; 574 575 if (link_id >= 0) { 576 link = sdata_dereference(sdata->link[link_id], sdata); 577 if (!link) 578 return NULL; 579 } 580 581 if (mac_addr) { 582 struct sta_info *sta; 583 struct link_sta_info *link_sta; 584 585 sta = sta_info_get_bss(sdata, mac_addr); 586 if (!sta) 587 return NULL; 588 589 if (link_id >= 0) { 590 link_sta = rcu_dereference_check(sta->link[link_id], 591 lockdep_is_held(&local->hw.wiphy->mtx)); 592 if (!link_sta) 593 return NULL; 594 } else { 595 link_sta = &sta->deflink; 596 } 597 598 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 599 return wiphy_dereference(local->hw.wiphy, 600 sta->ptk[key_idx]); 601 602 if (!pairwise && 603 key_idx < NUM_DEFAULT_KEYS + 604 NUM_DEFAULT_MGMT_KEYS + 605 NUM_DEFAULT_BEACON_KEYS) 606 return wiphy_dereference(local->hw.wiphy, 607 link_sta->gtk[key_idx]); 608 609 return NULL; 610 } 611 612 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 613 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 614 615 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); 616 if (key) 617 return key; 618 619 /* or maybe it was a WEP key */ 620 if (key_idx < NUM_DEFAULT_KEYS) 621 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); 622 623 return NULL; 624 } 625 626 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 627 int link_id, u8 key_idx, bool pairwise, 628 const u8 *mac_addr) 629 { 630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 631 struct ieee80211_local *local = sdata->local; 632 struct ieee80211_key *key; 633 634 lockdep_assert_wiphy(local->hw.wiphy); 635 636 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 637 if (!key) 638 return -ENOENT; 639 640 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 641 642 return 0; 643 } 644 645 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 646 int link_id, u8 key_idx, bool pairwise, 647 const u8 *mac_addr, void *cookie, 648 void (*callback)(void *cookie, 649 struct key_params *params)) 650 { 651 struct ieee80211_sub_if_data *sdata; 652 u8 seq[6] = {0}; 653 struct key_params params; 654 struct ieee80211_key *key; 655 u64 pn64; 656 u32 iv32; 657 u16 iv16; 658 int err = -ENOENT; 659 struct ieee80211_key_seq kseq = {}; 660 661 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 662 663 rcu_read_lock(); 664 665 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); 666 if (!key) 667 goto out; 668 669 memset(¶ms, 0, sizeof(params)); 670 671 params.cipher = key->conf.cipher; 672 673 switch (key->conf.cipher) { 674 case WLAN_CIPHER_SUITE_TKIP: 675 pn64 = atomic64_read(&key->conf.tx_pn); 676 iv32 = TKIP_PN_TO_IV32(pn64); 677 iv16 = TKIP_PN_TO_IV16(pn64); 678 679 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 680 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 681 drv_get_key_seq(sdata->local, key, &kseq); 682 iv32 = kseq.tkip.iv32; 683 iv16 = kseq.tkip.iv16; 684 } 685 686 seq[0] = iv16 & 0xff; 687 seq[1] = (iv16 >> 8) & 0xff; 688 seq[2] = iv32 & 0xff; 689 seq[3] = (iv32 >> 8) & 0xff; 690 seq[4] = (iv32 >> 16) & 0xff; 691 seq[5] = (iv32 >> 24) & 0xff; 692 params.seq = seq; 693 params.seq_len = 6; 694 break; 695 case WLAN_CIPHER_SUITE_CCMP: 696 case WLAN_CIPHER_SUITE_CCMP_256: 697 case WLAN_CIPHER_SUITE_AES_CMAC: 698 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 699 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 700 offsetof(typeof(kseq), aes_cmac)); 701 fallthrough; 702 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 703 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 704 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 705 offsetof(typeof(kseq), aes_gmac)); 706 fallthrough; 707 case WLAN_CIPHER_SUITE_GCMP: 708 case WLAN_CIPHER_SUITE_GCMP_256: 709 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 710 offsetof(typeof(kseq), gcmp)); 711 712 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 713 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 714 drv_get_key_seq(sdata->local, key, &kseq); 715 memcpy(seq, kseq.ccmp.pn, 6); 716 } else { 717 pn64 = atomic64_read(&key->conf.tx_pn); 718 seq[0] = pn64; 719 seq[1] = pn64 >> 8; 720 seq[2] = pn64 >> 16; 721 seq[3] = pn64 >> 24; 722 seq[4] = pn64 >> 32; 723 seq[5] = pn64 >> 40; 724 } 725 params.seq = seq; 726 params.seq_len = 6; 727 break; 728 default: 729 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 730 break; 731 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 732 break; 733 drv_get_key_seq(sdata->local, key, &kseq); 734 params.seq = kseq.hw.seq; 735 params.seq_len = kseq.hw.seq_len; 736 break; 737 } 738 739 params.key = key->conf.key; 740 params.key_len = key->conf.keylen; 741 742 callback(cookie, ¶ms); 743 err = 0; 744 745 out: 746 rcu_read_unlock(); 747 return err; 748 } 749 750 static int ieee80211_config_default_key(struct wiphy *wiphy, 751 struct net_device *dev, 752 int link_id, u8 key_idx, bool uni, 753 bool multi) 754 { 755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 756 struct ieee80211_link_data *link = 757 ieee80211_link_or_deflink(sdata, link_id, false); 758 759 if (IS_ERR(link)) 760 return PTR_ERR(link); 761 762 ieee80211_set_default_key(link, key_idx, uni, multi); 763 764 return 0; 765 } 766 767 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 768 struct net_device *dev, 769 int link_id, u8 key_idx) 770 { 771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 772 struct ieee80211_link_data *link = 773 ieee80211_link_or_deflink(sdata, link_id, true); 774 775 if (IS_ERR(link)) 776 return PTR_ERR(link); 777 778 ieee80211_set_default_mgmt_key(link, key_idx); 779 780 return 0; 781 } 782 783 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 784 struct net_device *dev, 785 int link_id, u8 key_idx) 786 { 787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 788 struct ieee80211_link_data *link = 789 ieee80211_link_or_deflink(sdata, link_id, true); 790 791 if (IS_ERR(link)) 792 return PTR_ERR(link); 793 794 ieee80211_set_default_beacon_key(link, key_idx); 795 796 return 0; 797 } 798 799 void sta_set_rate_info_tx(struct sta_info *sta, 800 const struct ieee80211_tx_rate *rate, 801 struct rate_info *rinfo) 802 { 803 rinfo->flags = 0; 804 if (rate->flags & IEEE80211_TX_RC_MCS) { 805 rinfo->flags |= RATE_INFO_FLAGS_MCS; 806 rinfo->mcs = rate->idx; 807 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 808 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 809 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 810 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 811 } else { 812 struct ieee80211_supported_band *sband; 813 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 814 u16 brate; 815 816 sband = ieee80211_get_sband(sta->sdata); 817 WARN_ON_ONCE(sband && !sband->bitrates); 818 if (sband && sband->bitrates) { 819 brate = sband->bitrates[rate->idx].bitrate; 820 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 821 } 822 } 823 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 824 rinfo->bw = RATE_INFO_BW_40; 825 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 826 rinfo->bw = RATE_INFO_BW_80; 827 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 828 rinfo->bw = RATE_INFO_BW_160; 829 else 830 rinfo->bw = RATE_INFO_BW_20; 831 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 832 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 833 } 834 835 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 836 int idx, u8 *mac, struct station_info *sinfo) 837 { 838 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 839 struct ieee80211_local *local = sdata->local; 840 struct sta_info *sta; 841 int ret = -ENOENT; 842 843 lockdep_assert_wiphy(local->hw.wiphy); 844 845 sta = sta_info_get_by_idx(sdata, idx); 846 if (sta) { 847 ret = 0; 848 memcpy(mac, sta->sta.addr, ETH_ALEN); 849 sta_set_sinfo(sta, sinfo, true); 850 } 851 852 return ret; 853 } 854 855 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 856 int idx, struct survey_info *survey) 857 { 858 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 859 860 return drv_get_survey(local, idx, survey); 861 } 862 863 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 864 const u8 *mac, struct station_info *sinfo) 865 { 866 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 867 struct ieee80211_local *local = sdata->local; 868 struct sta_info *sta; 869 int ret = -ENOENT; 870 871 lockdep_assert_wiphy(local->hw.wiphy); 872 873 sta = sta_info_get_bss(sdata, mac); 874 if (sta) { 875 ret = 0; 876 sta_set_sinfo(sta, sinfo, true); 877 } 878 879 return ret; 880 } 881 882 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 883 struct cfg80211_chan_def *chandef) 884 { 885 struct ieee80211_local *local = wiphy_priv(wiphy); 886 struct ieee80211_sub_if_data *sdata; 887 int ret = 0; 888 889 lockdep_assert_wiphy(local->hw.wiphy); 890 891 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 892 return 0; 893 894 if (local->use_chanctx) { 895 sdata = wiphy_dereference(local->hw.wiphy, 896 local->monitor_sdata); 897 if (sdata) { 898 ieee80211_link_release_channel(&sdata->deflink); 899 ret = ieee80211_link_use_channel(&sdata->deflink, 900 chandef, 901 IEEE80211_CHANCTX_EXCLUSIVE); 902 } 903 } else { 904 if (local->open_count == local->monitors) { 905 local->_oper_chandef = *chandef; 906 ieee80211_hw_config(local, 0); 907 } 908 } 909 910 if (ret == 0) 911 local->monitor_chandef = *chandef; 912 913 return ret; 914 } 915 916 static int 917 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 918 const u8 *resp, size_t resp_len, 919 const struct ieee80211_csa_settings *csa, 920 const struct ieee80211_color_change_settings *cca, 921 struct ieee80211_link_data *link) 922 { 923 struct probe_resp *new, *old; 924 925 if (!resp || !resp_len) 926 return 1; 927 928 old = sdata_dereference(link->u.ap.probe_resp, sdata); 929 930 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 931 if (!new) 932 return -ENOMEM; 933 934 new->len = resp_len; 935 memcpy(new->data, resp, resp_len); 936 937 if (csa) 938 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 939 csa->n_counter_offsets_presp * 940 sizeof(new->cntdwn_counter_offsets[0])); 941 else if (cca) 942 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 943 944 rcu_assign_pointer(link->u.ap.probe_resp, new); 945 if (old) 946 kfree_rcu(old, rcu_head); 947 948 return 0; 949 } 950 951 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 952 struct cfg80211_fils_discovery *params, 953 struct ieee80211_link_data *link, 954 struct ieee80211_bss_conf *link_conf) 955 { 956 struct fils_discovery_data *new, *old = NULL; 957 struct ieee80211_fils_discovery *fd; 958 959 if (!params->tmpl || !params->tmpl_len) 960 return -EINVAL; 961 962 fd = &link_conf->fils_discovery; 963 fd->min_interval = params->min_interval; 964 fd->max_interval = params->max_interval; 965 966 old = sdata_dereference(link->u.ap.fils_discovery, sdata); 967 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 968 if (!new) 969 return -ENOMEM; 970 new->len = params->tmpl_len; 971 memcpy(new->data, params->tmpl, params->tmpl_len); 972 rcu_assign_pointer(link->u.ap.fils_discovery, new); 973 974 if (old) 975 kfree_rcu(old, rcu_head); 976 977 return 0; 978 } 979 980 static int 981 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 982 struct cfg80211_unsol_bcast_probe_resp *params, 983 struct ieee80211_link_data *link, 984 struct ieee80211_bss_conf *link_conf) 985 { 986 struct unsol_bcast_probe_resp_data *new, *old = NULL; 987 988 if (!params->tmpl || !params->tmpl_len) 989 return -EINVAL; 990 991 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); 992 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 993 if (!new) 994 return -ENOMEM; 995 new->len = params->tmpl_len; 996 memcpy(new->data, params->tmpl, params->tmpl_len); 997 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); 998 999 if (old) 1000 kfree_rcu(old, rcu_head); 1001 1002 link_conf->unsol_bcast_probe_resp_interval = params->interval; 1003 1004 return 0; 1005 } 1006 1007 static int ieee80211_set_ftm_responder_params( 1008 struct ieee80211_sub_if_data *sdata, 1009 const u8 *lci, size_t lci_len, 1010 const u8 *civicloc, size_t civicloc_len, 1011 struct ieee80211_bss_conf *link_conf) 1012 { 1013 struct ieee80211_ftm_responder_params *new, *old; 1014 u8 *pos; 1015 int len; 1016 1017 if (!lci_len && !civicloc_len) 1018 return 0; 1019 1020 old = link_conf->ftmr_params; 1021 len = lci_len + civicloc_len; 1022 1023 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 1024 if (!new) 1025 return -ENOMEM; 1026 1027 pos = (u8 *)(new + 1); 1028 if (lci_len) { 1029 new->lci_len = lci_len; 1030 new->lci = pos; 1031 memcpy(pos, lci, lci_len); 1032 pos += lci_len; 1033 } 1034 1035 if (civicloc_len) { 1036 new->civicloc_len = civicloc_len; 1037 new->civicloc = pos; 1038 memcpy(pos, civicloc, civicloc_len); 1039 pos += civicloc_len; 1040 } 1041 1042 link_conf->ftmr_params = new; 1043 kfree(old); 1044 1045 return 0; 1046 } 1047 1048 static int 1049 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 1050 struct cfg80211_mbssid_elems *src) 1051 { 1052 int i, offset = 0; 1053 1054 for (i = 0; i < src->cnt; i++) { 1055 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1056 dst->elem[i].len = src->elem[i].len; 1057 dst->elem[i].data = pos + offset; 1058 offset += dst->elem[i].len; 1059 } 1060 dst->cnt = src->cnt; 1061 1062 return offset; 1063 } 1064 1065 static int 1066 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, 1067 struct cfg80211_rnr_elems *src) 1068 { 1069 int i, offset = 0; 1070 1071 for (i = 0; i < src->cnt; i++) { 1072 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1073 dst->elem[i].len = src->elem[i].len; 1074 dst->elem[i].data = pos + offset; 1075 offset += dst->elem[i].len; 1076 } 1077 dst->cnt = src->cnt; 1078 1079 return offset; 1080 } 1081 1082 static int 1083 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1084 struct ieee80211_link_data *link, 1085 struct cfg80211_beacon_data *params, 1086 const struct ieee80211_csa_settings *csa, 1087 const struct ieee80211_color_change_settings *cca, 1088 u64 *changed) 1089 { 1090 struct cfg80211_mbssid_elems *mbssid = NULL; 1091 struct cfg80211_rnr_elems *rnr = NULL; 1092 struct beacon_data *new, *old; 1093 int new_head_len, new_tail_len; 1094 int size, err; 1095 u64 _changed = BSS_CHANGED_BEACON; 1096 struct ieee80211_bss_conf *link_conf = link->conf; 1097 1098 old = sdata_dereference(link->u.ap.beacon, sdata); 1099 1100 /* Need to have a beacon head if we don't have one yet */ 1101 if (!params->head && !old) 1102 return -EINVAL; 1103 1104 /* new or old head? */ 1105 if (params->head) 1106 new_head_len = params->head_len; 1107 else 1108 new_head_len = old->head_len; 1109 1110 /* new or old tail? */ 1111 if (params->tail || !old) 1112 /* params->tail_len will be zero for !params->tail */ 1113 new_tail_len = params->tail_len; 1114 else 1115 new_tail_len = old->tail_len; 1116 1117 size = sizeof(*new) + new_head_len + new_tail_len; 1118 1119 /* new or old multiple BSSID elements? */ 1120 if (params->mbssid_ies) { 1121 mbssid = params->mbssid_ies; 1122 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1123 if (params->rnr_ies) { 1124 rnr = params->rnr_ies; 1125 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1126 } 1127 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1128 mbssid->cnt); 1129 } else if (old && old->mbssid_ies) { 1130 mbssid = old->mbssid_ies; 1131 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1132 if (old && old->rnr_ies) { 1133 rnr = old->rnr_ies; 1134 size += struct_size(new->rnr_ies, elem, rnr->cnt); 1135 } 1136 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr, 1137 mbssid->cnt); 1138 } 1139 1140 new = kzalloc(size, GFP_KERNEL); 1141 if (!new) 1142 return -ENOMEM; 1143 1144 /* start filling the new info now */ 1145 1146 /* 1147 * pointers go into the block we allocated, 1148 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies 1149 */ 1150 new->head = ((u8 *) new) + sizeof(*new); 1151 new->tail = new->head + new_head_len; 1152 new->head_len = new_head_len; 1153 new->tail_len = new_tail_len; 1154 /* copy in optional mbssid_ies */ 1155 if (mbssid) { 1156 u8 *pos = new->tail + new->tail_len; 1157 1158 new->mbssid_ies = (void *)pos; 1159 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1160 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, 1161 mbssid); 1162 if (rnr) { 1163 new->rnr_ies = (void *)pos; 1164 pos += struct_size(new->rnr_ies, elem, rnr->cnt); 1165 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr); 1166 } 1167 /* update bssid_indicator */ 1168 link_conf->bssid_indicator = 1169 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1170 } 1171 1172 if (csa) { 1173 new->cntdwn_current_counter = csa->count; 1174 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1175 csa->n_counter_offsets_beacon * 1176 sizeof(new->cntdwn_counter_offsets[0])); 1177 } else if (cca) { 1178 new->cntdwn_current_counter = cca->count; 1179 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1180 } 1181 1182 /* copy in head */ 1183 if (params->head) 1184 memcpy(new->head, params->head, new_head_len); 1185 else 1186 memcpy(new->head, old->head, new_head_len); 1187 1188 /* copy in optional tail */ 1189 if (params->tail) 1190 memcpy(new->tail, params->tail, new_tail_len); 1191 else 1192 if (old) 1193 memcpy(new->tail, old->tail, new_tail_len); 1194 1195 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1196 params->probe_resp_len, csa, cca, link); 1197 if (err < 0) { 1198 kfree(new); 1199 return err; 1200 } 1201 if (err == 0) 1202 _changed |= BSS_CHANGED_AP_PROBE_RESP; 1203 1204 if (params->ftm_responder != -1) { 1205 link_conf->ftm_responder = params->ftm_responder; 1206 err = ieee80211_set_ftm_responder_params(sdata, 1207 params->lci, 1208 params->lci_len, 1209 params->civicloc, 1210 params->civicloc_len, 1211 link_conf); 1212 1213 if (err < 0) { 1214 kfree(new); 1215 return err; 1216 } 1217 1218 _changed |= BSS_CHANGED_FTM_RESPONDER; 1219 } 1220 1221 rcu_assign_pointer(link->u.ap.beacon, new); 1222 sdata->u.ap.active = true; 1223 1224 if (old) 1225 kfree_rcu(old, rcu_head); 1226 1227 *changed |= _changed; 1228 return 0; 1229 } 1230 1231 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1232 struct cfg80211_ap_settings *params) 1233 { 1234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1235 struct ieee80211_local *local = sdata->local; 1236 struct beacon_data *old; 1237 struct ieee80211_sub_if_data *vlan; 1238 u64 changed = BSS_CHANGED_BEACON_INT | 1239 BSS_CHANGED_BEACON_ENABLED | 1240 BSS_CHANGED_BEACON | 1241 BSS_CHANGED_P2P_PS | 1242 BSS_CHANGED_TXPOWER | 1243 BSS_CHANGED_TWT; 1244 int i, err; 1245 int prev_beacon_int; 1246 unsigned int link_id = params->beacon.link_id; 1247 struct ieee80211_link_data *link; 1248 struct ieee80211_bss_conf *link_conf; 1249 1250 lockdep_assert_wiphy(local->hw.wiphy); 1251 1252 link = sdata_dereference(sdata->link[link_id], sdata); 1253 if (!link) 1254 return -ENOLINK; 1255 1256 link_conf = link->conf; 1257 1258 old = sdata_dereference(link->u.ap.beacon, sdata); 1259 if (old) 1260 return -EALREADY; 1261 1262 if (params->smps_mode != NL80211_SMPS_OFF) 1263 return -ENOTSUPP; 1264 1265 link->smps_mode = IEEE80211_SMPS_OFF; 1266 1267 link->needed_rx_chains = sdata->local->rx_chains; 1268 1269 prev_beacon_int = link_conf->beacon_int; 1270 link_conf->beacon_int = params->beacon_interval; 1271 1272 if (params->ht_cap) 1273 link_conf->ht_ldpc = 1274 params->ht_cap->cap_info & 1275 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); 1276 1277 if (params->vht_cap) { 1278 link_conf->vht_ldpc = 1279 params->vht_cap->vht_cap_info & 1280 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); 1281 link_conf->vht_su_beamformer = 1282 params->vht_cap->vht_cap_info & 1283 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); 1284 link_conf->vht_su_beamformee = 1285 params->vht_cap->vht_cap_info & 1286 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); 1287 link_conf->vht_mu_beamformer = 1288 params->vht_cap->vht_cap_info & 1289 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); 1290 link_conf->vht_mu_beamformee = 1291 params->vht_cap->vht_cap_info & 1292 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); 1293 } 1294 1295 if (params->he_cap && params->he_oper) { 1296 link_conf->he_support = true; 1297 link_conf->htc_trig_based_pkt_ext = 1298 le32_get_bits(params->he_oper->he_oper_params, 1299 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1300 link_conf->frame_time_rts_th = 1301 le32_get_bits(params->he_oper->he_oper_params, 1302 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1303 changed |= BSS_CHANGED_HE_OBSS_PD; 1304 1305 if (params->beacon.he_bss_color.enabled) 1306 changed |= BSS_CHANGED_HE_BSS_COLOR; 1307 } 1308 1309 if (params->he_cap) { 1310 link_conf->he_ldpc = 1311 params->he_cap->phy_cap_info[1] & 1312 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; 1313 link_conf->he_su_beamformer = 1314 params->he_cap->phy_cap_info[3] & 1315 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; 1316 link_conf->he_su_beamformee = 1317 params->he_cap->phy_cap_info[4] & 1318 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; 1319 link_conf->he_mu_beamformer = 1320 params->he_cap->phy_cap_info[4] & 1321 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; 1322 link_conf->he_full_ul_mumimo = 1323 params->he_cap->phy_cap_info[2] & 1324 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; 1325 } 1326 1327 if (params->eht_cap) { 1328 if (!link_conf->he_support) 1329 return -EOPNOTSUPP; 1330 1331 link_conf->eht_support = true; 1332 link_conf->eht_puncturing = params->punct_bitmap; 1333 changed |= BSS_CHANGED_EHT_PUNCTURING; 1334 1335 link_conf->eht_su_beamformer = 1336 params->eht_cap->fixed.phy_cap_info[0] & 1337 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; 1338 link_conf->eht_su_beamformee = 1339 params->eht_cap->fixed.phy_cap_info[0] & 1340 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; 1341 link_conf->eht_mu_beamformer = 1342 params->eht_cap->fixed.phy_cap_info[7] & 1343 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | 1344 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | 1345 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); 1346 } else { 1347 link_conf->eht_su_beamformer = false; 1348 link_conf->eht_su_beamformee = false; 1349 link_conf->eht_mu_beamformer = false; 1350 } 1351 1352 if (sdata->vif.type == NL80211_IFTYPE_AP && 1353 params->mbssid_config.tx_wdev) { 1354 err = ieee80211_set_ap_mbssid_options(sdata, 1355 params->mbssid_config, 1356 link_conf); 1357 if (err) 1358 return err; 1359 } 1360 1361 err = ieee80211_link_use_channel(link, ¶ms->chandef, 1362 IEEE80211_CHANCTX_SHARED); 1363 if (!err) 1364 ieee80211_link_copy_chanctx_to_vlans(link, false); 1365 if (err) { 1366 link_conf->beacon_int = prev_beacon_int; 1367 return err; 1368 } 1369 1370 /* 1371 * Apply control port protocol, this allows us to 1372 * not encrypt dynamic WEP control frames. 1373 */ 1374 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1375 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1376 sdata->control_port_over_nl80211 = 1377 params->crypto.control_port_over_nl80211; 1378 sdata->control_port_no_preauth = 1379 params->crypto.control_port_no_preauth; 1380 1381 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1382 vlan->control_port_protocol = 1383 params->crypto.control_port_ethertype; 1384 vlan->control_port_no_encrypt = 1385 params->crypto.control_port_no_encrypt; 1386 vlan->control_port_over_nl80211 = 1387 params->crypto.control_port_over_nl80211; 1388 vlan->control_port_no_preauth = 1389 params->crypto.control_port_no_preauth; 1390 } 1391 1392 link_conf->dtim_period = params->dtim_period; 1393 link_conf->enable_beacon = true; 1394 link_conf->allow_p2p_go_ps = sdata->vif.p2p; 1395 link_conf->twt_responder = params->twt_responder; 1396 link_conf->he_obss_pd = params->he_obss_pd; 1397 link_conf->he_bss_color = params->beacon.he_bss_color; 1398 sdata->vif.cfg.s1g = params->chandef.chan->band == 1399 NL80211_BAND_S1GHZ; 1400 1401 sdata->vif.cfg.ssid_len = params->ssid_len; 1402 if (params->ssid_len) 1403 memcpy(sdata->vif.cfg.ssid, params->ssid, 1404 params->ssid_len); 1405 link_conf->hidden_ssid = 1406 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1407 1408 memset(&link_conf->p2p_noa_attr, 0, 1409 sizeof(link_conf->p2p_noa_attr)); 1410 link_conf->p2p_noa_attr.oppps_ctwindow = 1411 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1412 if (params->p2p_opp_ps) 1413 link_conf->p2p_noa_attr.oppps_ctwindow |= 1414 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1415 1416 sdata->beacon_rate_set = false; 1417 if (wiphy_ext_feature_isset(local->hw.wiphy, 1418 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1419 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1420 sdata->beacon_rateidx_mask[i] = 1421 params->beacon_rate.control[i].legacy; 1422 if (sdata->beacon_rateidx_mask[i]) 1423 sdata->beacon_rate_set = true; 1424 } 1425 } 1426 1427 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1428 link_conf->beacon_tx_rate = params->beacon_rate; 1429 1430 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL, 1431 &changed); 1432 if (err < 0) 1433 goto error; 1434 1435 if (params->fils_discovery.max_interval) { 1436 err = ieee80211_set_fils_discovery(sdata, 1437 ¶ms->fils_discovery, 1438 link, link_conf); 1439 if (err < 0) 1440 goto error; 1441 changed |= BSS_CHANGED_FILS_DISCOVERY; 1442 } 1443 1444 if (params->unsol_bcast_probe_resp.interval) { 1445 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1446 ¶ms->unsol_bcast_probe_resp, 1447 link, link_conf); 1448 if (err < 0) 1449 goto error; 1450 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1451 } 1452 1453 err = drv_start_ap(sdata->local, sdata, link_conf); 1454 if (err) { 1455 old = sdata_dereference(link->u.ap.beacon, sdata); 1456 1457 if (old) 1458 kfree_rcu(old, rcu_head); 1459 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1460 sdata->u.ap.active = false; 1461 goto error; 1462 } 1463 1464 ieee80211_recalc_dtim(local, sdata); 1465 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID); 1466 ieee80211_link_info_change_notify(sdata, link, changed); 1467 1468 netif_carrier_on(dev); 1469 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1470 netif_carrier_on(vlan->dev); 1471 1472 return 0; 1473 1474 error: 1475 ieee80211_link_release_channel(link); 1476 1477 return err; 1478 } 1479 1480 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1481 struct cfg80211_beacon_data *params) 1482 { 1483 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1484 struct ieee80211_link_data *link; 1485 struct beacon_data *old; 1486 int err; 1487 struct ieee80211_bss_conf *link_conf; 1488 u64 changed = 0; 1489 1490 lockdep_assert_wiphy(wiphy); 1491 1492 link = sdata_dereference(sdata->link[params->link_id], sdata); 1493 if (!link) 1494 return -ENOLINK; 1495 1496 link_conf = link->conf; 1497 1498 /* don't allow changing the beacon while a countdown is in place - offset 1499 * of channel switch counter may change 1500 */ 1501 if (link_conf->csa_active || link_conf->color_change_active) 1502 return -EBUSY; 1503 1504 old = sdata_dereference(link->u.ap.beacon, sdata); 1505 if (!old) 1506 return -ENOENT; 1507 1508 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL, 1509 &changed); 1510 if (err < 0) 1511 return err; 1512 1513 if (params->he_bss_color_valid && 1514 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) { 1515 link_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1516 changed |= BSS_CHANGED_HE_BSS_COLOR; 1517 } 1518 1519 ieee80211_link_info_change_notify(sdata, link, changed); 1520 return 0; 1521 } 1522 1523 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) 1524 { 1525 if (!link->u.ap.next_beacon) 1526 return; 1527 1528 kfree(link->u.ap.next_beacon->mbssid_ies); 1529 kfree(link->u.ap.next_beacon->rnr_ies); 1530 kfree(link->u.ap.next_beacon); 1531 link->u.ap.next_beacon = NULL; 1532 } 1533 1534 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1535 unsigned int link_id) 1536 { 1537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1538 struct ieee80211_sub_if_data *vlan; 1539 struct ieee80211_local *local = sdata->local; 1540 struct beacon_data *old_beacon; 1541 struct probe_resp *old_probe_resp; 1542 struct fils_discovery_data *old_fils_discovery; 1543 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1544 struct cfg80211_chan_def chandef; 1545 struct ieee80211_link_data *link = 1546 sdata_dereference(sdata->link[link_id], sdata); 1547 struct ieee80211_bss_conf *link_conf = link->conf; 1548 1549 lockdep_assert_wiphy(local->hw.wiphy); 1550 1551 old_beacon = sdata_dereference(link->u.ap.beacon, sdata); 1552 if (!old_beacon) 1553 return -ENOENT; 1554 old_probe_resp = sdata_dereference(link->u.ap.probe_resp, 1555 sdata); 1556 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, 1557 sdata); 1558 old_unsol_bcast_probe_resp = 1559 sdata_dereference(link->u.ap.unsol_bcast_probe_resp, 1560 sdata); 1561 1562 /* abort any running channel switch or color change */ 1563 link_conf->csa_active = false; 1564 link_conf->color_change_active = false; 1565 if (link->csa_block_tx) { 1566 ieee80211_wake_vif_queues(local, sdata, 1567 IEEE80211_QUEUE_STOP_REASON_CSA); 1568 link->csa_block_tx = false; 1569 } 1570 1571 ieee80211_free_next_beacon(link); 1572 1573 /* turn off carrier for this interface and dependent VLANs */ 1574 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1575 netif_carrier_off(vlan->dev); 1576 netif_carrier_off(dev); 1577 1578 /* remove beacon and probe response */ 1579 sdata->u.ap.active = false; 1580 RCU_INIT_POINTER(link->u.ap.beacon, NULL); 1581 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); 1582 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); 1583 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); 1584 kfree_rcu(old_beacon, rcu_head); 1585 if (old_probe_resp) 1586 kfree_rcu(old_probe_resp, rcu_head); 1587 if (old_fils_discovery) 1588 kfree_rcu(old_fils_discovery, rcu_head); 1589 if (old_unsol_bcast_probe_resp) 1590 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1591 1592 kfree(link_conf->ftmr_params); 1593 link_conf->ftmr_params = NULL; 1594 1595 sdata->vif.mbssid_tx_vif = NULL; 1596 link_conf->bssid_index = 0; 1597 link_conf->nontransmitted = false; 1598 link_conf->ema_ap = false; 1599 link_conf->bssid_indicator = 0; 1600 1601 __sta_info_flush(sdata, true); 1602 ieee80211_free_keys(sdata, true); 1603 1604 link_conf->enable_beacon = false; 1605 sdata->beacon_rate_set = false; 1606 sdata->vif.cfg.ssid_len = 0; 1607 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1608 ieee80211_link_info_change_notify(sdata, link, 1609 BSS_CHANGED_BEACON_ENABLED); 1610 1611 if (sdata->wdev.cac_started) { 1612 chandef = link_conf->chandef; 1613 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); 1614 cfg80211_cac_event(sdata->dev, &chandef, 1615 NL80211_RADAR_CAC_ABORTED, 1616 GFP_KERNEL); 1617 } 1618 1619 drv_stop_ap(sdata->local, sdata, link_conf); 1620 1621 /* free all potentially still buffered bcast frames */ 1622 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1623 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1624 1625 ieee80211_link_copy_chanctx_to_vlans(link, true); 1626 ieee80211_link_release_channel(link); 1627 1628 return 0; 1629 } 1630 1631 static int sta_apply_auth_flags(struct ieee80211_local *local, 1632 struct sta_info *sta, 1633 u32 mask, u32 set) 1634 { 1635 int ret; 1636 1637 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1638 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1639 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1640 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1641 if (ret) 1642 return ret; 1643 } 1644 1645 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1646 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1647 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1648 /* 1649 * When peer becomes associated, init rate control as 1650 * well. Some drivers require rate control initialized 1651 * before drv_sta_state() is called. 1652 */ 1653 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1654 rate_control_rate_init(sta); 1655 1656 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1657 if (ret) 1658 return ret; 1659 } 1660 1661 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1662 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1663 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1664 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1665 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1666 else 1667 ret = 0; 1668 if (ret) 1669 return ret; 1670 } 1671 1672 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1673 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1674 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1675 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1676 if (ret) 1677 return ret; 1678 } 1679 1680 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1681 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1682 test_sta_flag(sta, WLAN_STA_AUTH)) { 1683 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1684 if (ret) 1685 return ret; 1686 } 1687 1688 return 0; 1689 } 1690 1691 static void sta_apply_mesh_params(struct ieee80211_local *local, 1692 struct sta_info *sta, 1693 struct station_parameters *params) 1694 { 1695 #ifdef CONFIG_MAC80211_MESH 1696 struct ieee80211_sub_if_data *sdata = sta->sdata; 1697 u64 changed = 0; 1698 1699 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1700 switch (params->plink_state) { 1701 case NL80211_PLINK_ESTAB: 1702 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1703 changed = mesh_plink_inc_estab_count(sdata); 1704 sta->mesh->plink_state = params->plink_state; 1705 sta->mesh->aid = params->peer_aid; 1706 1707 ieee80211_mps_sta_status_update(sta); 1708 changed |= ieee80211_mps_set_sta_local_pm(sta, 1709 sdata->u.mesh.mshcfg.power_mode); 1710 1711 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1712 /* init at low value */ 1713 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1714 1715 break; 1716 case NL80211_PLINK_LISTEN: 1717 case NL80211_PLINK_BLOCKED: 1718 case NL80211_PLINK_OPN_SNT: 1719 case NL80211_PLINK_OPN_RCVD: 1720 case NL80211_PLINK_CNF_RCVD: 1721 case NL80211_PLINK_HOLDING: 1722 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1723 changed = mesh_plink_dec_estab_count(sdata); 1724 sta->mesh->plink_state = params->plink_state; 1725 1726 ieee80211_mps_sta_status_update(sta); 1727 changed |= ieee80211_mps_set_sta_local_pm(sta, 1728 NL80211_MESH_POWER_UNKNOWN); 1729 break; 1730 default: 1731 /* nothing */ 1732 break; 1733 } 1734 } 1735 1736 switch (params->plink_action) { 1737 case NL80211_PLINK_ACTION_NO_ACTION: 1738 /* nothing */ 1739 break; 1740 case NL80211_PLINK_ACTION_OPEN: 1741 changed |= mesh_plink_open(sta); 1742 break; 1743 case NL80211_PLINK_ACTION_BLOCK: 1744 changed |= mesh_plink_block(sta); 1745 break; 1746 } 1747 1748 if (params->local_pm) 1749 changed |= ieee80211_mps_set_sta_local_pm(sta, 1750 params->local_pm); 1751 1752 ieee80211_mbss_info_change_notify(sdata, changed); 1753 #endif 1754 } 1755 1756 static int sta_link_apply_parameters(struct ieee80211_local *local, 1757 struct sta_info *sta, bool new_link, 1758 struct link_station_parameters *params) 1759 { 1760 int ret = 0; 1761 struct ieee80211_supported_band *sband; 1762 struct ieee80211_sub_if_data *sdata = sta->sdata; 1763 u32 link_id = params->link_id < 0 ? 0 : params->link_id; 1764 struct ieee80211_link_data *link = 1765 sdata_dereference(sdata->link[link_id], sdata); 1766 struct link_sta_info *link_sta = 1767 rcu_dereference_protected(sta->link[link_id], 1768 lockdep_is_held(&local->hw.wiphy->mtx)); 1769 1770 /* 1771 * If there are no changes, then accept a link that doesn't exist, 1772 * unless it's a new link. 1773 */ 1774 if (params->link_id < 0 && !new_link && 1775 !params->link_mac && !params->txpwr_set && 1776 !params->supported_rates_len && 1777 !params->ht_capa && !params->vht_capa && 1778 !params->he_capa && !params->eht_capa && 1779 !params->opmode_notif_used) 1780 return 0; 1781 1782 if (!link || !link_sta) 1783 return -EINVAL; 1784 1785 sband = ieee80211_get_link_sband(link); 1786 if (!sband) 1787 return -EINVAL; 1788 1789 if (params->link_mac) { 1790 if (new_link) { 1791 memcpy(link_sta->addr, params->link_mac, ETH_ALEN); 1792 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); 1793 } else if (!ether_addr_equal(link_sta->addr, 1794 params->link_mac)) { 1795 return -EINVAL; 1796 } 1797 } else if (new_link) { 1798 return -EINVAL; 1799 } 1800 1801 if (params->txpwr_set) { 1802 link_sta->pub->txpwr.type = params->txpwr.type; 1803 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1804 link_sta->pub->txpwr.power = params->txpwr.power; 1805 ret = drv_sta_set_txpwr(local, sdata, sta); 1806 if (ret) 1807 return ret; 1808 } 1809 1810 if (params->supported_rates && 1811 params->supported_rates_len) { 1812 ieee80211_parse_bitrates(link->conf->chandef.width, 1813 sband, params->supported_rates, 1814 params->supported_rates_len, 1815 &link_sta->pub->supp_rates[sband->band]); 1816 } 1817 1818 if (params->ht_capa) 1819 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1820 params->ht_capa, link_sta); 1821 1822 /* VHT can override some HT caps such as the A-MSDU max length */ 1823 if (params->vht_capa) 1824 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1825 params->vht_capa, link_sta); 1826 1827 if (params->he_capa) 1828 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1829 (void *)params->he_capa, 1830 params->he_capa_len, 1831 (void *)params->he_6ghz_capa, 1832 link_sta); 1833 1834 if (params->he_capa && params->eht_capa) 1835 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1836 (u8 *)params->he_capa, 1837 params->he_capa_len, 1838 params->eht_capa, 1839 params->eht_capa_len, 1840 link_sta); 1841 1842 if (params->opmode_notif_used) { 1843 /* returned value is only needed for rc update, but the 1844 * rc isn't initialized here yet, so ignore it 1845 */ 1846 __ieee80211_vht_handle_opmode(sdata, link_sta, 1847 params->opmode_notif, 1848 sband->band); 1849 } 1850 1851 return ret; 1852 } 1853 1854 static int sta_apply_parameters(struct ieee80211_local *local, 1855 struct sta_info *sta, 1856 struct station_parameters *params) 1857 { 1858 struct ieee80211_sub_if_data *sdata = sta->sdata; 1859 u32 mask, set; 1860 int ret = 0; 1861 1862 mask = params->sta_flags_mask; 1863 set = params->sta_flags_set; 1864 1865 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1866 /* 1867 * In mesh mode, ASSOCIATED isn't part of the nl80211 1868 * API but must follow AUTHENTICATED for driver state. 1869 */ 1870 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1871 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1872 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1873 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1874 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1875 /* 1876 * TDLS -- everything follows authorized, but 1877 * only becoming authorized is possible, not 1878 * going back 1879 */ 1880 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1881 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1882 BIT(NL80211_STA_FLAG_ASSOCIATED); 1883 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1884 BIT(NL80211_STA_FLAG_ASSOCIATED); 1885 } 1886 } 1887 1888 if (mask & BIT(NL80211_STA_FLAG_WME) && 1889 local->hw.queues >= IEEE80211_NUM_ACS) 1890 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1891 1892 /* auth flags will be set later for TDLS, 1893 * and for unassociated stations that move to associated */ 1894 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1895 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1896 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1897 ret = sta_apply_auth_flags(local, sta, mask, set); 1898 if (ret) 1899 return ret; 1900 } 1901 1902 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1903 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1904 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1905 else 1906 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1907 } 1908 1909 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1910 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1911 if (set & BIT(NL80211_STA_FLAG_MFP)) 1912 set_sta_flag(sta, WLAN_STA_MFP); 1913 else 1914 clear_sta_flag(sta, WLAN_STA_MFP); 1915 } 1916 1917 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1918 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1919 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1920 else 1921 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1922 } 1923 1924 /* mark TDLS channel switch support, if the AP allows it */ 1925 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1926 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && 1927 params->ext_capab_len >= 4 && 1928 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1929 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1930 1931 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1932 !sdata->u.mgd.tdls_wider_bw_prohibited && 1933 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1934 params->ext_capab_len >= 8 && 1935 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1936 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1937 1938 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1939 sta->sta.uapsd_queues = params->uapsd_queues; 1940 sta->sta.max_sp = params->max_sp; 1941 } 1942 1943 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab, 1944 params->ext_capab_len); 1945 1946 /* 1947 * cfg80211 validates this (1-2007) and allows setting the AID 1948 * only when creating a new station entry 1949 */ 1950 if (params->aid) 1951 sta->sta.aid = params->aid; 1952 1953 /* 1954 * Some of the following updates would be racy if called on an 1955 * existing station, via ieee80211_change_station(). However, 1956 * all such changes are rejected by cfg80211 except for updates 1957 * changing the supported rates on an existing but not yet used 1958 * TDLS peer. 1959 */ 1960 1961 if (params->listen_interval >= 0) 1962 sta->listen_interval = params->listen_interval; 1963 1964 ret = sta_link_apply_parameters(local, sta, false, 1965 ¶ms->link_sta_params); 1966 if (ret) 1967 return ret; 1968 1969 if (params->support_p2p_ps >= 0) 1970 sta->sta.support_p2p_ps = params->support_p2p_ps; 1971 1972 if (ieee80211_vif_is_mesh(&sdata->vif)) 1973 sta_apply_mesh_params(local, sta, params); 1974 1975 if (params->airtime_weight) 1976 sta->airtime_weight = params->airtime_weight; 1977 1978 /* set the STA state after all sta info from usermode has been set */ 1979 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1980 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1981 ret = sta_apply_auth_flags(local, sta, mask, set); 1982 if (ret) 1983 return ret; 1984 } 1985 1986 /* Mark the STA as MLO if MLD MAC address is available */ 1987 if (params->link_sta_params.mld_mac) 1988 sta->sta.mlo = true; 1989 1990 return 0; 1991 } 1992 1993 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1994 const u8 *mac, 1995 struct station_parameters *params) 1996 { 1997 struct ieee80211_local *local = wiphy_priv(wiphy); 1998 struct sta_info *sta; 1999 struct ieee80211_sub_if_data *sdata; 2000 int err; 2001 2002 lockdep_assert_wiphy(local->hw.wiphy); 2003 2004 if (params->vlan) { 2005 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2006 2007 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 2008 sdata->vif.type != NL80211_IFTYPE_AP) 2009 return -EINVAL; 2010 } else 2011 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2012 2013 if (ether_addr_equal(mac, sdata->vif.addr)) 2014 return -EINVAL; 2015 2016 if (!is_valid_ether_addr(mac)) 2017 return -EINVAL; 2018 2019 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 2020 sdata->vif.type == NL80211_IFTYPE_STATION && 2021 !sdata->u.mgd.associated) 2022 return -EINVAL; 2023 2024 /* 2025 * If we have a link ID, it can be a non-MLO station on an AP MLD, 2026 * but we need to have a link_mac in that case as well, so use the 2027 * STA's MAC address in that case. 2028 */ 2029 if (params->link_sta_params.link_id >= 0) 2030 sta = sta_info_alloc_with_link(sdata, mac, 2031 params->link_sta_params.link_id, 2032 params->link_sta_params.link_mac ?: mac, 2033 GFP_KERNEL); 2034 else 2035 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 2036 2037 if (!sta) 2038 return -ENOMEM; 2039 2040 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 2041 sta->sta.tdls = true; 2042 2043 /* Though the mutex is not needed here (since the station is not 2044 * visible yet), sta_apply_parameters (and inner functions) require 2045 * the mutex due to other paths. 2046 */ 2047 err = sta_apply_parameters(local, sta, params); 2048 if (err) { 2049 sta_info_free(local, sta); 2050 return err; 2051 } 2052 2053 /* 2054 * for TDLS and for unassociated station, rate control should be 2055 * initialized only when rates are known and station is marked 2056 * authorized/associated 2057 */ 2058 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 2059 test_sta_flag(sta, WLAN_STA_ASSOC)) 2060 rate_control_rate_init(sta); 2061 2062 return sta_info_insert(sta); 2063 } 2064 2065 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 2066 struct station_del_parameters *params) 2067 { 2068 struct ieee80211_sub_if_data *sdata; 2069 2070 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2071 2072 if (params->mac) 2073 return sta_info_destroy_addr_bss(sdata, params->mac); 2074 2075 sta_info_flush(sdata); 2076 return 0; 2077 } 2078 2079 static int ieee80211_change_station(struct wiphy *wiphy, 2080 struct net_device *dev, const u8 *mac, 2081 struct station_parameters *params) 2082 { 2083 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2084 struct ieee80211_local *local = wiphy_priv(wiphy); 2085 struct sta_info *sta; 2086 struct ieee80211_sub_if_data *vlansdata; 2087 enum cfg80211_station_type statype; 2088 int err; 2089 2090 lockdep_assert_wiphy(local->hw.wiphy); 2091 2092 sta = sta_info_get_bss(sdata, mac); 2093 if (!sta) 2094 return -ENOENT; 2095 2096 switch (sdata->vif.type) { 2097 case NL80211_IFTYPE_MESH_POINT: 2098 if (sdata->u.mesh.user_mpm) 2099 statype = CFG80211_STA_MESH_PEER_USER; 2100 else 2101 statype = CFG80211_STA_MESH_PEER_KERNEL; 2102 break; 2103 case NL80211_IFTYPE_ADHOC: 2104 statype = CFG80211_STA_IBSS; 2105 break; 2106 case NL80211_IFTYPE_STATION: 2107 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 2108 statype = CFG80211_STA_AP_STA; 2109 break; 2110 } 2111 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2112 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 2113 else 2114 statype = CFG80211_STA_TDLS_PEER_SETUP; 2115 break; 2116 case NL80211_IFTYPE_AP: 2117 case NL80211_IFTYPE_AP_VLAN: 2118 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 2119 statype = CFG80211_STA_AP_CLIENT; 2120 else 2121 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 2122 break; 2123 default: 2124 return -EOPNOTSUPP; 2125 } 2126 2127 err = cfg80211_check_station_change(wiphy, params, statype); 2128 if (err) 2129 return err; 2130 2131 if (params->vlan && params->vlan != sta->sdata->dev) { 2132 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 2133 2134 if (params->vlan->ieee80211_ptr->use_4addr) { 2135 if (vlansdata->u.vlan.sta) 2136 return -EBUSY; 2137 2138 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 2139 __ieee80211_check_fast_rx_iface(vlansdata); 2140 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 2141 } 2142 2143 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 2144 sta->sdata->u.vlan.sta) { 2145 ieee80211_clear_fast_rx(sta); 2146 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 2147 } 2148 2149 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2150 ieee80211_vif_dec_num_mcast(sta->sdata); 2151 2152 sta->sdata = vlansdata; 2153 ieee80211_check_fast_xmit(sta); 2154 2155 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 2156 ieee80211_vif_inc_num_mcast(sta->sdata); 2157 cfg80211_send_layer2_update(sta->sdata->dev, 2158 sta->sta.addr); 2159 } 2160 } 2161 2162 err = sta_apply_parameters(local, sta, params); 2163 if (err) 2164 return err; 2165 2166 if (sdata->vif.type == NL80211_IFTYPE_STATION && 2167 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 2168 ieee80211_recalc_ps(local); 2169 ieee80211_recalc_ps_vif(sdata); 2170 } 2171 2172 return 0; 2173 } 2174 2175 #ifdef CONFIG_MAC80211_MESH 2176 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 2177 const u8 *dst, const u8 *next_hop) 2178 { 2179 struct ieee80211_sub_if_data *sdata; 2180 struct mesh_path *mpath; 2181 struct sta_info *sta; 2182 2183 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2184 2185 rcu_read_lock(); 2186 sta = sta_info_get(sdata, next_hop); 2187 if (!sta) { 2188 rcu_read_unlock(); 2189 return -ENOENT; 2190 } 2191 2192 mpath = mesh_path_add(sdata, dst); 2193 if (IS_ERR(mpath)) { 2194 rcu_read_unlock(); 2195 return PTR_ERR(mpath); 2196 } 2197 2198 mesh_path_fix_nexthop(mpath, sta); 2199 2200 rcu_read_unlock(); 2201 return 0; 2202 } 2203 2204 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2205 const u8 *dst) 2206 { 2207 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2208 2209 if (dst) 2210 return mesh_path_del(sdata, dst); 2211 2212 mesh_path_flush_by_iface(sdata); 2213 return 0; 2214 } 2215 2216 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2217 const u8 *dst, const u8 *next_hop) 2218 { 2219 struct ieee80211_sub_if_data *sdata; 2220 struct mesh_path *mpath; 2221 struct sta_info *sta; 2222 2223 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2224 2225 rcu_read_lock(); 2226 2227 sta = sta_info_get(sdata, next_hop); 2228 if (!sta) { 2229 rcu_read_unlock(); 2230 return -ENOENT; 2231 } 2232 2233 mpath = mesh_path_lookup(sdata, dst); 2234 if (!mpath) { 2235 rcu_read_unlock(); 2236 return -ENOENT; 2237 } 2238 2239 mesh_path_fix_nexthop(mpath, sta); 2240 2241 rcu_read_unlock(); 2242 return 0; 2243 } 2244 2245 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2246 struct mpath_info *pinfo) 2247 { 2248 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2249 2250 if (next_hop_sta) 2251 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2252 else 2253 eth_zero_addr(next_hop); 2254 2255 memset(pinfo, 0, sizeof(*pinfo)); 2256 2257 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2258 2259 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2260 MPATH_INFO_SN | 2261 MPATH_INFO_METRIC | 2262 MPATH_INFO_EXPTIME | 2263 MPATH_INFO_DISCOVERY_TIMEOUT | 2264 MPATH_INFO_DISCOVERY_RETRIES | 2265 MPATH_INFO_FLAGS | 2266 MPATH_INFO_HOP_COUNT | 2267 MPATH_INFO_PATH_CHANGE; 2268 2269 pinfo->frame_qlen = mpath->frame_queue.qlen; 2270 pinfo->sn = mpath->sn; 2271 pinfo->metric = mpath->metric; 2272 if (time_before(jiffies, mpath->exp_time)) 2273 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2274 pinfo->discovery_timeout = 2275 jiffies_to_msecs(mpath->discovery_timeout); 2276 pinfo->discovery_retries = mpath->discovery_retries; 2277 if (mpath->flags & MESH_PATH_ACTIVE) 2278 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2279 if (mpath->flags & MESH_PATH_RESOLVING) 2280 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2281 if (mpath->flags & MESH_PATH_SN_VALID) 2282 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2283 if (mpath->flags & MESH_PATH_FIXED) 2284 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2285 if (mpath->flags & MESH_PATH_RESOLVED) 2286 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2287 pinfo->hop_count = mpath->hop_count; 2288 pinfo->path_change_count = mpath->path_change_count; 2289 } 2290 2291 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2292 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2293 2294 { 2295 struct ieee80211_sub_if_data *sdata; 2296 struct mesh_path *mpath; 2297 2298 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2299 2300 rcu_read_lock(); 2301 mpath = mesh_path_lookup(sdata, dst); 2302 if (!mpath) { 2303 rcu_read_unlock(); 2304 return -ENOENT; 2305 } 2306 memcpy(dst, mpath->dst, ETH_ALEN); 2307 mpath_set_pinfo(mpath, next_hop, pinfo); 2308 rcu_read_unlock(); 2309 return 0; 2310 } 2311 2312 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2313 int idx, u8 *dst, u8 *next_hop, 2314 struct mpath_info *pinfo) 2315 { 2316 struct ieee80211_sub_if_data *sdata; 2317 struct mesh_path *mpath; 2318 2319 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2320 2321 rcu_read_lock(); 2322 mpath = mesh_path_lookup_by_idx(sdata, idx); 2323 if (!mpath) { 2324 rcu_read_unlock(); 2325 return -ENOENT; 2326 } 2327 memcpy(dst, mpath->dst, ETH_ALEN); 2328 mpath_set_pinfo(mpath, next_hop, pinfo); 2329 rcu_read_unlock(); 2330 return 0; 2331 } 2332 2333 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2334 struct mpath_info *pinfo) 2335 { 2336 memset(pinfo, 0, sizeof(*pinfo)); 2337 memcpy(mpp, mpath->mpp, ETH_ALEN); 2338 2339 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2340 } 2341 2342 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2343 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2344 2345 { 2346 struct ieee80211_sub_if_data *sdata; 2347 struct mesh_path *mpath; 2348 2349 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2350 2351 rcu_read_lock(); 2352 mpath = mpp_path_lookup(sdata, dst); 2353 if (!mpath) { 2354 rcu_read_unlock(); 2355 return -ENOENT; 2356 } 2357 memcpy(dst, mpath->dst, ETH_ALEN); 2358 mpp_set_pinfo(mpath, mpp, pinfo); 2359 rcu_read_unlock(); 2360 return 0; 2361 } 2362 2363 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2364 int idx, u8 *dst, u8 *mpp, 2365 struct mpath_info *pinfo) 2366 { 2367 struct ieee80211_sub_if_data *sdata; 2368 struct mesh_path *mpath; 2369 2370 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2371 2372 rcu_read_lock(); 2373 mpath = mpp_path_lookup_by_idx(sdata, idx); 2374 if (!mpath) { 2375 rcu_read_unlock(); 2376 return -ENOENT; 2377 } 2378 memcpy(dst, mpath->dst, ETH_ALEN); 2379 mpp_set_pinfo(mpath, mpp, pinfo); 2380 rcu_read_unlock(); 2381 return 0; 2382 } 2383 2384 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2385 struct net_device *dev, 2386 struct mesh_config *conf) 2387 { 2388 struct ieee80211_sub_if_data *sdata; 2389 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2390 2391 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2392 return 0; 2393 } 2394 2395 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2396 { 2397 return (mask >> (parm-1)) & 0x1; 2398 } 2399 2400 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2401 const struct mesh_setup *setup) 2402 { 2403 u8 *new_ie; 2404 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2405 struct ieee80211_sub_if_data, u.mesh); 2406 int i; 2407 2408 /* allocate information elements */ 2409 new_ie = NULL; 2410 2411 if (setup->ie_len) { 2412 new_ie = kmemdup(setup->ie, setup->ie_len, 2413 GFP_KERNEL); 2414 if (!new_ie) 2415 return -ENOMEM; 2416 } 2417 ifmsh->ie_len = setup->ie_len; 2418 ifmsh->ie = new_ie; 2419 2420 /* now copy the rest of the setup parameters */ 2421 ifmsh->mesh_id_len = setup->mesh_id_len; 2422 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2423 ifmsh->mesh_sp_id = setup->sync_method; 2424 ifmsh->mesh_pp_id = setup->path_sel_proto; 2425 ifmsh->mesh_pm_id = setup->path_metric; 2426 ifmsh->user_mpm = setup->user_mpm; 2427 ifmsh->mesh_auth_id = setup->auth_id; 2428 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2429 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2430 if (setup->is_authenticated) 2431 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2432 if (setup->is_secure) 2433 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2434 2435 /* mcast rate setting in Mesh Node */ 2436 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2437 sizeof(setup->mcast_rate)); 2438 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2439 2440 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2441 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2442 2443 sdata->beacon_rate_set = false; 2444 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2445 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2446 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2447 sdata->beacon_rateidx_mask[i] = 2448 setup->beacon_rate.control[i].legacy; 2449 if (sdata->beacon_rateidx_mask[i]) 2450 sdata->beacon_rate_set = true; 2451 } 2452 } 2453 2454 return 0; 2455 } 2456 2457 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2458 struct net_device *dev, u32 mask, 2459 const struct mesh_config *nconf) 2460 { 2461 struct mesh_config *conf; 2462 struct ieee80211_sub_if_data *sdata; 2463 struct ieee80211_if_mesh *ifmsh; 2464 2465 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2466 ifmsh = &sdata->u.mesh; 2467 2468 /* Set the config options which we are interested in setting */ 2469 conf = &(sdata->u.mesh.mshcfg); 2470 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2471 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2472 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2473 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2474 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2475 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2476 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2477 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2478 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2479 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2480 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2481 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2482 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2483 conf->element_ttl = nconf->element_ttl; 2484 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2485 if (ifmsh->user_mpm) 2486 return -EBUSY; 2487 conf->auto_open_plinks = nconf->auto_open_plinks; 2488 } 2489 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2490 conf->dot11MeshNbrOffsetMaxNeighbor = 2491 nconf->dot11MeshNbrOffsetMaxNeighbor; 2492 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2493 conf->dot11MeshHWMPmaxPREQretries = 2494 nconf->dot11MeshHWMPmaxPREQretries; 2495 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2496 conf->path_refresh_time = nconf->path_refresh_time; 2497 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2498 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2499 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2500 conf->dot11MeshHWMPactivePathTimeout = 2501 nconf->dot11MeshHWMPactivePathTimeout; 2502 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2503 conf->dot11MeshHWMPpreqMinInterval = 2504 nconf->dot11MeshHWMPpreqMinInterval; 2505 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2506 conf->dot11MeshHWMPperrMinInterval = 2507 nconf->dot11MeshHWMPperrMinInterval; 2508 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2509 mask)) 2510 conf->dot11MeshHWMPnetDiameterTraversalTime = 2511 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2512 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2513 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2514 ieee80211_mesh_root_setup(ifmsh); 2515 } 2516 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2517 /* our current gate announcement implementation rides on root 2518 * announcements, so require this ifmsh to also be a root node 2519 * */ 2520 if (nconf->dot11MeshGateAnnouncementProtocol && 2521 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2522 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2523 ieee80211_mesh_root_setup(ifmsh); 2524 } 2525 conf->dot11MeshGateAnnouncementProtocol = 2526 nconf->dot11MeshGateAnnouncementProtocol; 2527 } 2528 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2529 conf->dot11MeshHWMPRannInterval = 2530 nconf->dot11MeshHWMPRannInterval; 2531 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2532 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2533 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2534 /* our RSSI threshold implementation is supported only for 2535 * devices that report signal in dBm. 2536 */ 2537 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2538 return -ENOTSUPP; 2539 conf->rssi_threshold = nconf->rssi_threshold; 2540 } 2541 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2542 conf->ht_opmode = nconf->ht_opmode; 2543 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2544 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2545 BSS_CHANGED_HT); 2546 } 2547 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2548 conf->dot11MeshHWMPactivePathToRootTimeout = 2549 nconf->dot11MeshHWMPactivePathToRootTimeout; 2550 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2551 conf->dot11MeshHWMProotInterval = 2552 nconf->dot11MeshHWMProotInterval; 2553 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2554 conf->dot11MeshHWMPconfirmationInterval = 2555 nconf->dot11MeshHWMPconfirmationInterval; 2556 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2557 conf->power_mode = nconf->power_mode; 2558 ieee80211_mps_local_status_update(sdata); 2559 } 2560 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2561 conf->dot11MeshAwakeWindowDuration = 2562 nconf->dot11MeshAwakeWindowDuration; 2563 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2564 conf->plink_timeout = nconf->plink_timeout; 2565 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2566 conf->dot11MeshConnectedToMeshGate = 2567 nconf->dot11MeshConnectedToMeshGate; 2568 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2569 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2570 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2571 conf->dot11MeshConnectedToAuthServer = 2572 nconf->dot11MeshConnectedToAuthServer; 2573 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2574 return 0; 2575 } 2576 2577 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2578 const struct mesh_config *conf, 2579 const struct mesh_setup *setup) 2580 { 2581 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2582 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2583 int err; 2584 2585 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2586 2587 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2588 err = copy_mesh_setup(ifmsh, setup); 2589 if (err) 2590 return err; 2591 2592 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2593 2594 /* can mesh use other SMPS modes? */ 2595 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 2596 sdata->deflink.needed_rx_chains = sdata->local->rx_chains; 2597 2598 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef, 2599 IEEE80211_CHANCTX_SHARED); 2600 if (err) 2601 return err; 2602 2603 return ieee80211_start_mesh(sdata); 2604 } 2605 2606 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2607 { 2608 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2609 2610 lockdep_assert_wiphy(sdata->local->hw.wiphy); 2611 2612 ieee80211_stop_mesh(sdata); 2613 ieee80211_link_release_channel(&sdata->deflink); 2614 kfree(sdata->u.mesh.ie); 2615 2616 return 0; 2617 } 2618 #endif 2619 2620 static int ieee80211_change_bss(struct wiphy *wiphy, 2621 struct net_device *dev, 2622 struct bss_parameters *params) 2623 { 2624 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2625 struct ieee80211_link_data *link; 2626 struct ieee80211_supported_band *sband; 2627 u64 changed = 0; 2628 2629 link = ieee80211_link_or_deflink(sdata, params->link_id, true); 2630 if (IS_ERR(link)) 2631 return PTR_ERR(link); 2632 2633 if (!sdata_dereference(link->u.ap.beacon, sdata)) 2634 return -ENOENT; 2635 2636 sband = ieee80211_get_link_sband(link); 2637 if (!sband) 2638 return -EINVAL; 2639 2640 if (params->basic_rates) { 2641 if (!ieee80211_parse_bitrates(link->conf->chandef.width, 2642 wiphy->bands[sband->band], 2643 params->basic_rates, 2644 params->basic_rates_len, 2645 &link->conf->basic_rates)) 2646 return -EINVAL; 2647 changed |= BSS_CHANGED_BASIC_RATES; 2648 ieee80211_check_rate_mask(link); 2649 } 2650 2651 if (params->use_cts_prot >= 0) { 2652 link->conf->use_cts_prot = params->use_cts_prot; 2653 changed |= BSS_CHANGED_ERP_CTS_PROT; 2654 } 2655 if (params->use_short_preamble >= 0) { 2656 link->conf->use_short_preamble = params->use_short_preamble; 2657 changed |= BSS_CHANGED_ERP_PREAMBLE; 2658 } 2659 2660 if (!link->conf->use_short_slot && 2661 (sband->band == NL80211_BAND_5GHZ || 2662 sband->band == NL80211_BAND_6GHZ)) { 2663 link->conf->use_short_slot = true; 2664 changed |= BSS_CHANGED_ERP_SLOT; 2665 } 2666 2667 if (params->use_short_slot_time >= 0) { 2668 link->conf->use_short_slot = params->use_short_slot_time; 2669 changed |= BSS_CHANGED_ERP_SLOT; 2670 } 2671 2672 if (params->ap_isolate >= 0) { 2673 if (params->ap_isolate) 2674 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2675 else 2676 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2677 ieee80211_check_fast_rx_iface(sdata); 2678 } 2679 2680 if (params->ht_opmode >= 0) { 2681 link->conf->ht_operation_mode = (u16)params->ht_opmode; 2682 changed |= BSS_CHANGED_HT; 2683 } 2684 2685 if (params->p2p_ctwindow >= 0) { 2686 link->conf->p2p_noa_attr.oppps_ctwindow &= 2687 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2688 link->conf->p2p_noa_attr.oppps_ctwindow |= 2689 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2690 changed |= BSS_CHANGED_P2P_PS; 2691 } 2692 2693 if (params->p2p_opp_ps > 0) { 2694 link->conf->p2p_noa_attr.oppps_ctwindow |= 2695 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2696 changed |= BSS_CHANGED_P2P_PS; 2697 } else if (params->p2p_opp_ps == 0) { 2698 link->conf->p2p_noa_attr.oppps_ctwindow &= 2699 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2700 changed |= BSS_CHANGED_P2P_PS; 2701 } 2702 2703 ieee80211_link_info_change_notify(sdata, link, changed); 2704 2705 return 0; 2706 } 2707 2708 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2709 struct net_device *dev, 2710 struct ieee80211_txq_params *params) 2711 { 2712 struct ieee80211_local *local = wiphy_priv(wiphy); 2713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2714 struct ieee80211_link_data *link = 2715 ieee80211_link_or_deflink(sdata, params->link_id, true); 2716 struct ieee80211_tx_queue_params p; 2717 2718 if (!local->ops->conf_tx) 2719 return -EOPNOTSUPP; 2720 2721 if (local->hw.queues < IEEE80211_NUM_ACS) 2722 return -EOPNOTSUPP; 2723 2724 if (IS_ERR(link)) 2725 return PTR_ERR(link); 2726 2727 memset(&p, 0, sizeof(p)); 2728 p.aifs = params->aifs; 2729 p.cw_max = params->cwmax; 2730 p.cw_min = params->cwmin; 2731 p.txop = params->txop; 2732 2733 /* 2734 * Setting tx queue params disables u-apsd because it's only 2735 * called in master mode. 2736 */ 2737 p.uapsd = false; 2738 2739 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2740 2741 link->tx_conf[params->ac] = p; 2742 if (drv_conf_tx(local, link, params->ac, &p)) { 2743 wiphy_debug(local->hw.wiphy, 2744 "failed to set TX queue parameters for AC %d\n", 2745 params->ac); 2746 return -EINVAL; 2747 } 2748 2749 ieee80211_link_info_change_notify(sdata, link, 2750 BSS_CHANGED_QOS); 2751 2752 return 0; 2753 } 2754 2755 #ifdef CONFIG_PM 2756 static int ieee80211_suspend(struct wiphy *wiphy, 2757 struct cfg80211_wowlan *wowlan) 2758 { 2759 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2760 } 2761 2762 static int ieee80211_resume(struct wiphy *wiphy) 2763 { 2764 return __ieee80211_resume(wiphy_priv(wiphy)); 2765 } 2766 #else 2767 #define ieee80211_suspend NULL 2768 #define ieee80211_resume NULL 2769 #endif 2770 2771 static int ieee80211_scan(struct wiphy *wiphy, 2772 struct cfg80211_scan_request *req) 2773 { 2774 struct ieee80211_sub_if_data *sdata; 2775 2776 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2777 2778 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2779 case NL80211_IFTYPE_STATION: 2780 case NL80211_IFTYPE_ADHOC: 2781 case NL80211_IFTYPE_MESH_POINT: 2782 case NL80211_IFTYPE_P2P_CLIENT: 2783 case NL80211_IFTYPE_P2P_DEVICE: 2784 break; 2785 case NL80211_IFTYPE_P2P_GO: 2786 if (sdata->local->ops->hw_scan) 2787 break; 2788 /* 2789 * FIXME: implement NoA while scanning in software, 2790 * for now fall through to allow scanning only when 2791 * beaconing hasn't been configured yet 2792 */ 2793 fallthrough; 2794 case NL80211_IFTYPE_AP: 2795 /* 2796 * If the scan has been forced (and the driver supports 2797 * forcing), don't care about being beaconing already. 2798 * This will create problems to the attached stations (e.g. all 2799 * the frames sent while scanning on other channel will be 2800 * lost) 2801 */ 2802 if (sdata->deflink.u.ap.beacon && 2803 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2804 !(req->flags & NL80211_SCAN_FLAG_AP))) 2805 return -EOPNOTSUPP; 2806 break; 2807 case NL80211_IFTYPE_NAN: 2808 default: 2809 return -EOPNOTSUPP; 2810 } 2811 2812 return ieee80211_request_scan(sdata, req); 2813 } 2814 2815 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2816 { 2817 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2818 } 2819 2820 static int 2821 ieee80211_sched_scan_start(struct wiphy *wiphy, 2822 struct net_device *dev, 2823 struct cfg80211_sched_scan_request *req) 2824 { 2825 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2826 2827 if (!sdata->local->ops->sched_scan_start) 2828 return -EOPNOTSUPP; 2829 2830 return ieee80211_request_sched_scan_start(sdata, req); 2831 } 2832 2833 static int 2834 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2835 u64 reqid) 2836 { 2837 struct ieee80211_local *local = wiphy_priv(wiphy); 2838 2839 if (!local->ops->sched_scan_stop) 2840 return -EOPNOTSUPP; 2841 2842 return ieee80211_request_sched_scan_stop(local); 2843 } 2844 2845 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2846 struct cfg80211_auth_request *req) 2847 { 2848 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2849 } 2850 2851 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2852 struct cfg80211_assoc_request *req) 2853 { 2854 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2855 } 2856 2857 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2858 struct cfg80211_deauth_request *req) 2859 { 2860 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2861 } 2862 2863 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2864 struct cfg80211_disassoc_request *req) 2865 { 2866 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2867 } 2868 2869 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2870 struct cfg80211_ibss_params *params) 2871 { 2872 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2873 } 2874 2875 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2876 { 2877 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2878 } 2879 2880 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2881 struct ocb_setup *setup) 2882 { 2883 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2884 } 2885 2886 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2887 { 2888 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2889 } 2890 2891 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2892 int rate[NUM_NL80211_BANDS]) 2893 { 2894 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2895 2896 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2897 sizeof(int) * NUM_NL80211_BANDS); 2898 2899 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 2900 BSS_CHANGED_MCAST_RATE); 2901 2902 return 0; 2903 } 2904 2905 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2906 { 2907 struct ieee80211_local *local = wiphy_priv(wiphy); 2908 int err; 2909 2910 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2911 ieee80211_check_fast_xmit_all(local); 2912 2913 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2914 2915 if (err) { 2916 ieee80211_check_fast_xmit_all(local); 2917 return err; 2918 } 2919 } 2920 2921 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2922 (changed & WIPHY_PARAM_DYN_ACK)) { 2923 s16 coverage_class; 2924 2925 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2926 wiphy->coverage_class : -1; 2927 err = drv_set_coverage_class(local, coverage_class); 2928 2929 if (err) 2930 return err; 2931 } 2932 2933 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2934 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2935 2936 if (err) 2937 return err; 2938 } 2939 2940 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2941 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2942 return -EINVAL; 2943 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2944 } 2945 if (changed & WIPHY_PARAM_RETRY_LONG) { 2946 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2947 return -EINVAL; 2948 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2949 } 2950 if (changed & 2951 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2952 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2953 2954 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2955 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2956 WIPHY_PARAM_TXQ_QUANTUM)) 2957 ieee80211_txq_set_params(local); 2958 2959 return 0; 2960 } 2961 2962 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2963 struct wireless_dev *wdev, 2964 enum nl80211_tx_power_setting type, int mbm) 2965 { 2966 struct ieee80211_local *local = wiphy_priv(wiphy); 2967 struct ieee80211_sub_if_data *sdata; 2968 enum nl80211_tx_power_setting txp_type = type; 2969 bool update_txp_type = false; 2970 bool has_monitor = false; 2971 2972 lockdep_assert_wiphy(local->hw.wiphy); 2973 2974 if (wdev) { 2975 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2976 2977 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2978 sdata = wiphy_dereference(local->hw.wiphy, 2979 local->monitor_sdata); 2980 if (!sdata) 2981 return -EOPNOTSUPP; 2982 } 2983 2984 switch (type) { 2985 case NL80211_TX_POWER_AUTOMATIC: 2986 sdata->deflink.user_power_level = 2987 IEEE80211_UNSET_POWER_LEVEL; 2988 txp_type = NL80211_TX_POWER_LIMITED; 2989 break; 2990 case NL80211_TX_POWER_LIMITED: 2991 case NL80211_TX_POWER_FIXED: 2992 if (mbm < 0 || (mbm % 100)) 2993 return -EOPNOTSUPP; 2994 sdata->deflink.user_power_level = MBM_TO_DBM(mbm); 2995 break; 2996 } 2997 2998 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2999 update_txp_type = true; 3000 sdata->vif.bss_conf.txpower_type = txp_type; 3001 } 3002 3003 ieee80211_recalc_txpower(sdata, update_txp_type); 3004 3005 return 0; 3006 } 3007 3008 switch (type) { 3009 case NL80211_TX_POWER_AUTOMATIC: 3010 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 3011 txp_type = NL80211_TX_POWER_LIMITED; 3012 break; 3013 case NL80211_TX_POWER_LIMITED: 3014 case NL80211_TX_POWER_FIXED: 3015 if (mbm < 0 || (mbm % 100)) 3016 return -EOPNOTSUPP; 3017 local->user_power_level = MBM_TO_DBM(mbm); 3018 break; 3019 } 3020 3021 list_for_each_entry(sdata, &local->interfaces, list) { 3022 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3023 has_monitor = true; 3024 continue; 3025 } 3026 sdata->deflink.user_power_level = local->user_power_level; 3027 if (txp_type != sdata->vif.bss_conf.txpower_type) 3028 update_txp_type = true; 3029 sdata->vif.bss_conf.txpower_type = txp_type; 3030 } 3031 list_for_each_entry(sdata, &local->interfaces, list) { 3032 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 3033 continue; 3034 ieee80211_recalc_txpower(sdata, update_txp_type); 3035 } 3036 3037 if (has_monitor) { 3038 sdata = wiphy_dereference(local->hw.wiphy, 3039 local->monitor_sdata); 3040 if (sdata) { 3041 sdata->deflink.user_power_level = local->user_power_level; 3042 if (txp_type != sdata->vif.bss_conf.txpower_type) 3043 update_txp_type = true; 3044 sdata->vif.bss_conf.txpower_type = txp_type; 3045 3046 ieee80211_recalc_txpower(sdata, update_txp_type); 3047 } 3048 } 3049 3050 return 0; 3051 } 3052 3053 static int ieee80211_get_tx_power(struct wiphy *wiphy, 3054 struct wireless_dev *wdev, 3055 int *dbm) 3056 { 3057 struct ieee80211_local *local = wiphy_priv(wiphy); 3058 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3059 3060 if (local->ops->get_txpower) 3061 return drv_get_txpower(local, sdata, dbm); 3062 3063 if (!local->use_chanctx) 3064 *dbm = local->hw.conf.power_level; 3065 else 3066 *dbm = sdata->vif.bss_conf.txpower; 3067 3068 return 0; 3069 } 3070 3071 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 3072 { 3073 struct ieee80211_local *local = wiphy_priv(wiphy); 3074 3075 drv_rfkill_poll(local); 3076 } 3077 3078 #ifdef CONFIG_NL80211_TESTMODE 3079 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 3080 struct wireless_dev *wdev, 3081 void *data, int len) 3082 { 3083 struct ieee80211_local *local = wiphy_priv(wiphy); 3084 struct ieee80211_vif *vif = NULL; 3085 3086 if (!local->ops->testmode_cmd) 3087 return -EOPNOTSUPP; 3088 3089 if (wdev) { 3090 struct ieee80211_sub_if_data *sdata; 3091 3092 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3093 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 3094 vif = &sdata->vif; 3095 } 3096 3097 return local->ops->testmode_cmd(&local->hw, vif, data, len); 3098 } 3099 3100 static int ieee80211_testmode_dump(struct wiphy *wiphy, 3101 struct sk_buff *skb, 3102 struct netlink_callback *cb, 3103 void *data, int len) 3104 { 3105 struct ieee80211_local *local = wiphy_priv(wiphy); 3106 3107 if (!local->ops->testmode_dump) 3108 return -EOPNOTSUPP; 3109 3110 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 3111 } 3112 #endif 3113 3114 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 3115 struct ieee80211_link_data *link, 3116 enum ieee80211_smps_mode smps_mode) 3117 { 3118 const u8 *ap; 3119 enum ieee80211_smps_mode old_req; 3120 int err; 3121 struct sta_info *sta; 3122 bool tdls_peer_found = false; 3123 3124 lockdep_assert_wiphy(sdata->local->hw.wiphy); 3125 3126 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 3127 return -EINVAL; 3128 3129 if (ieee80211_vif_is_mld(&sdata->vif) && 3130 !(sdata->vif.active_links & BIT(link->link_id))) 3131 return 0; 3132 3133 old_req = link->u.mgd.req_smps; 3134 link->u.mgd.req_smps = smps_mode; 3135 3136 if (old_req == smps_mode && 3137 smps_mode != IEEE80211_SMPS_AUTOMATIC) 3138 return 0; 3139 3140 /* 3141 * If not associated, or current association is not an HT 3142 * association, there's no need to do anything, just store 3143 * the new value until we associate. 3144 */ 3145 if (!sdata->u.mgd.associated || 3146 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 3147 return 0; 3148 3149 ap = sdata->vif.cfg.ap_addr; 3150 3151 rcu_read_lock(); 3152 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 3153 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 3154 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 3155 continue; 3156 3157 tdls_peer_found = true; 3158 break; 3159 } 3160 rcu_read_unlock(); 3161 3162 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 3163 if (tdls_peer_found || !sdata->u.mgd.powersave) 3164 smps_mode = IEEE80211_SMPS_OFF; 3165 else 3166 smps_mode = IEEE80211_SMPS_DYNAMIC; 3167 } 3168 3169 /* send SM PS frame to AP */ 3170 err = ieee80211_send_smps_action(sdata, smps_mode, 3171 ap, ap, 3172 ieee80211_vif_is_mld(&sdata->vif) ? 3173 link->link_id : -1); 3174 if (err) 3175 link->u.mgd.req_smps = old_req; 3176 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 3177 ieee80211_teardown_tdls_peers(sdata); 3178 3179 return err; 3180 } 3181 3182 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 3183 bool enabled, int timeout) 3184 { 3185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3186 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3187 unsigned int link_id; 3188 3189 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3190 return -EOPNOTSUPP; 3191 3192 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 3193 return -EOPNOTSUPP; 3194 3195 if (enabled == sdata->u.mgd.powersave && 3196 timeout == local->dynamic_ps_forced_timeout) 3197 return 0; 3198 3199 sdata->u.mgd.powersave = enabled; 3200 local->dynamic_ps_forced_timeout = timeout; 3201 3202 /* no change, but if automatic follow powersave */ 3203 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { 3204 struct ieee80211_link_data *link; 3205 3206 link = sdata_dereference(sdata->link[link_id], sdata); 3207 3208 if (!link) 3209 continue; 3210 __ieee80211_request_smps_mgd(sdata, link, 3211 link->u.mgd.req_smps); 3212 } 3213 3214 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3215 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3216 3217 ieee80211_recalc_ps(local); 3218 ieee80211_recalc_ps_vif(sdata); 3219 ieee80211_check_fast_rx_iface(sdata); 3220 3221 return 0; 3222 } 3223 3224 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3225 struct net_device *dev, 3226 s32 rssi_thold, u32 rssi_hyst) 3227 { 3228 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3229 struct ieee80211_vif *vif = &sdata->vif; 3230 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3231 3232 if (rssi_thold == bss_conf->cqm_rssi_thold && 3233 rssi_hyst == bss_conf->cqm_rssi_hyst) 3234 return 0; 3235 3236 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3237 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3238 return -EOPNOTSUPP; 3239 3240 bss_conf->cqm_rssi_thold = rssi_thold; 3241 bss_conf->cqm_rssi_hyst = rssi_hyst; 3242 bss_conf->cqm_rssi_low = 0; 3243 bss_conf->cqm_rssi_high = 0; 3244 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3245 3246 /* tell the driver upon association, unless already associated */ 3247 if (sdata->u.mgd.associated && 3248 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3249 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3250 BSS_CHANGED_CQM); 3251 3252 return 0; 3253 } 3254 3255 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3256 struct net_device *dev, 3257 s32 rssi_low, s32 rssi_high) 3258 { 3259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3260 struct ieee80211_vif *vif = &sdata->vif; 3261 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3262 3263 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3264 return -EOPNOTSUPP; 3265 3266 bss_conf->cqm_rssi_low = rssi_low; 3267 bss_conf->cqm_rssi_high = rssi_high; 3268 bss_conf->cqm_rssi_thold = 0; 3269 bss_conf->cqm_rssi_hyst = 0; 3270 sdata->deflink.u.mgd.last_cqm_event_signal = 0; 3271 3272 /* tell the driver upon association, unless already associated */ 3273 if (sdata->u.mgd.associated && 3274 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3275 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3276 BSS_CHANGED_CQM); 3277 3278 return 0; 3279 } 3280 3281 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3282 struct net_device *dev, 3283 unsigned int link_id, 3284 const u8 *addr, 3285 const struct cfg80211_bitrate_mask *mask) 3286 { 3287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3288 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3289 int i, ret; 3290 3291 if (!ieee80211_sdata_running(sdata)) 3292 return -ENETDOWN; 3293 3294 /* 3295 * If active validate the setting and reject it if it doesn't leave 3296 * at least one basic rate usable, since we really have to be able 3297 * to send something, and if we're an AP we have to be able to do 3298 * so at a basic rate so that all clients can receive it. 3299 */ 3300 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && 3301 sdata->vif.bss_conf.chandef.chan) { 3302 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3303 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3304 3305 if (!(mask->control[band].legacy & basic_rates)) 3306 return -EINVAL; 3307 } 3308 3309 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3310 ret = drv_set_bitrate_mask(local, sdata, mask); 3311 if (ret) 3312 return ret; 3313 } 3314 3315 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3316 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3317 int j; 3318 3319 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3320 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3321 sizeof(mask->control[i].ht_mcs)); 3322 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3323 mask->control[i].vht_mcs, 3324 sizeof(mask->control[i].vht_mcs)); 3325 3326 sdata->rc_has_mcs_mask[i] = false; 3327 sdata->rc_has_vht_mcs_mask[i] = false; 3328 if (!sband) 3329 continue; 3330 3331 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3332 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3333 sdata->rc_has_mcs_mask[i] = true; 3334 break; 3335 } 3336 } 3337 3338 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3339 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3340 sdata->rc_has_vht_mcs_mask[i] = true; 3341 break; 3342 } 3343 } 3344 } 3345 3346 return 0; 3347 } 3348 3349 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3350 struct net_device *dev, 3351 struct cfg80211_chan_def *chandef, 3352 u32 cac_time_ms) 3353 { 3354 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3355 struct ieee80211_local *local = sdata->local; 3356 int err; 3357 3358 lockdep_assert_wiphy(local->hw.wiphy); 3359 3360 if (!list_empty(&local->roc_list) || local->scanning) { 3361 err = -EBUSY; 3362 goto out_unlock; 3363 } 3364 3365 /* whatever, but channel contexts should not complain about that one */ 3366 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; 3367 sdata->deflink.needed_rx_chains = local->rx_chains; 3368 3369 err = ieee80211_link_use_channel(&sdata->deflink, chandef, 3370 IEEE80211_CHANCTX_SHARED); 3371 if (err) 3372 goto out_unlock; 3373 3374 wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work, 3375 msecs_to_jiffies(cac_time_ms)); 3376 3377 out_unlock: 3378 return err; 3379 } 3380 3381 static void ieee80211_end_cac(struct wiphy *wiphy, 3382 struct net_device *dev) 3383 { 3384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3385 struct ieee80211_local *local = sdata->local; 3386 3387 lockdep_assert_wiphy(local->hw.wiphy); 3388 3389 list_for_each_entry(sdata, &local->interfaces, list) { 3390 /* it might be waiting for the local->mtx, but then 3391 * by the time it gets it, sdata->wdev.cac_started 3392 * will no longer be true 3393 */ 3394 wiphy_delayed_work_cancel(wiphy, 3395 &sdata->deflink.dfs_cac_timer_work); 3396 3397 if (sdata->wdev.cac_started) { 3398 ieee80211_link_release_channel(&sdata->deflink); 3399 sdata->wdev.cac_started = false; 3400 } 3401 } 3402 } 3403 3404 static struct cfg80211_beacon_data * 3405 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3406 { 3407 struct cfg80211_beacon_data *new_beacon; 3408 u8 *pos; 3409 int len; 3410 3411 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3412 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3413 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3414 3415 if (beacon->mbssid_ies) 3416 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies, 3417 beacon->rnr_ies, 3418 beacon->mbssid_ies->cnt); 3419 3420 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3421 if (!new_beacon) 3422 return NULL; 3423 3424 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3425 new_beacon->mbssid_ies = 3426 kzalloc(struct_size(new_beacon->mbssid_ies, 3427 elem, beacon->mbssid_ies->cnt), 3428 GFP_KERNEL); 3429 if (!new_beacon->mbssid_ies) { 3430 kfree(new_beacon); 3431 return NULL; 3432 } 3433 3434 if (beacon->rnr_ies && beacon->rnr_ies->cnt) { 3435 new_beacon->rnr_ies = 3436 kzalloc(struct_size(new_beacon->rnr_ies, 3437 elem, beacon->rnr_ies->cnt), 3438 GFP_KERNEL); 3439 if (!new_beacon->rnr_ies) { 3440 kfree(new_beacon->mbssid_ies); 3441 kfree(new_beacon); 3442 return NULL; 3443 } 3444 } 3445 } 3446 3447 pos = (u8 *)(new_beacon + 1); 3448 if (beacon->head_len) { 3449 new_beacon->head_len = beacon->head_len; 3450 new_beacon->head = pos; 3451 memcpy(pos, beacon->head, beacon->head_len); 3452 pos += beacon->head_len; 3453 } 3454 if (beacon->tail_len) { 3455 new_beacon->tail_len = beacon->tail_len; 3456 new_beacon->tail = pos; 3457 memcpy(pos, beacon->tail, beacon->tail_len); 3458 pos += beacon->tail_len; 3459 } 3460 if (beacon->beacon_ies_len) { 3461 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3462 new_beacon->beacon_ies = pos; 3463 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3464 pos += beacon->beacon_ies_len; 3465 } 3466 if (beacon->proberesp_ies_len) { 3467 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3468 new_beacon->proberesp_ies = pos; 3469 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3470 pos += beacon->proberesp_ies_len; 3471 } 3472 if (beacon->assocresp_ies_len) { 3473 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3474 new_beacon->assocresp_ies = pos; 3475 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3476 pos += beacon->assocresp_ies_len; 3477 } 3478 if (beacon->probe_resp_len) { 3479 new_beacon->probe_resp_len = beacon->probe_resp_len; 3480 new_beacon->probe_resp = pos; 3481 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3482 pos += beacon->probe_resp_len; 3483 } 3484 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3485 pos += ieee80211_copy_mbssid_beacon(pos, 3486 new_beacon->mbssid_ies, 3487 beacon->mbssid_ies); 3488 if (beacon->rnr_ies && beacon->rnr_ies->cnt) 3489 pos += ieee80211_copy_rnr_beacon(pos, 3490 new_beacon->rnr_ies, 3491 beacon->rnr_ies); 3492 } 3493 3494 /* might copy -1, meaning no changes requested */ 3495 new_beacon->ftm_responder = beacon->ftm_responder; 3496 if (beacon->lci) { 3497 new_beacon->lci_len = beacon->lci_len; 3498 new_beacon->lci = pos; 3499 memcpy(pos, beacon->lci, beacon->lci_len); 3500 pos += beacon->lci_len; 3501 } 3502 if (beacon->civicloc) { 3503 new_beacon->civicloc_len = beacon->civicloc_len; 3504 new_beacon->civicloc = pos; 3505 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3506 pos += beacon->civicloc_len; 3507 } 3508 3509 return new_beacon; 3510 } 3511 3512 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3513 { 3514 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3515 struct ieee80211_local *local = sdata->local; 3516 3517 rcu_read_lock(); 3518 3519 if (vif->mbssid_tx_vif == vif) { 3520 /* Trigger ieee80211_csa_finish() on the non-transmitting 3521 * interfaces when channel switch is received on 3522 * transmitting interface 3523 */ 3524 struct ieee80211_sub_if_data *iter; 3525 3526 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3527 if (!ieee80211_sdata_running(iter)) 3528 continue; 3529 3530 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3531 continue; 3532 3533 wiphy_work_queue(iter->local->hw.wiphy, 3534 &iter->deflink.csa_finalize_work); 3535 } 3536 } 3537 wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work); 3538 3539 rcu_read_unlock(); 3540 } 3541 EXPORT_SYMBOL(ieee80211_csa_finish); 3542 3543 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3544 { 3545 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3546 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3547 struct ieee80211_local *local = sdata->local; 3548 3549 sdata->deflink.csa_block_tx = block_tx; 3550 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3551 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work); 3552 } 3553 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3554 3555 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3556 u64 *changed) 3557 { 3558 int err; 3559 3560 switch (sdata->vif.type) { 3561 case NL80211_IFTYPE_AP: 3562 if (!sdata->deflink.u.ap.next_beacon) 3563 return -EINVAL; 3564 3565 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3566 sdata->deflink.u.ap.next_beacon, 3567 NULL, NULL, changed); 3568 ieee80211_free_next_beacon(&sdata->deflink); 3569 3570 if (err < 0) 3571 return err; 3572 break; 3573 case NL80211_IFTYPE_ADHOC: 3574 err = ieee80211_ibss_finish_csa(sdata, changed); 3575 if (err < 0) 3576 return err; 3577 break; 3578 #ifdef CONFIG_MAC80211_MESH 3579 case NL80211_IFTYPE_MESH_POINT: 3580 err = ieee80211_mesh_finish_csa(sdata, changed); 3581 if (err < 0) 3582 return err; 3583 break; 3584 #endif 3585 default: 3586 WARN_ON(1); 3587 return -EINVAL; 3588 } 3589 3590 return 0; 3591 } 3592 3593 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3594 { 3595 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3596 struct ieee80211_local *local = sdata->local; 3597 u64 changed = 0; 3598 int err; 3599 3600 lockdep_assert_wiphy(local->hw.wiphy); 3601 3602 /* 3603 * using reservation isn't immediate as it may be deferred until later 3604 * with multi-vif. once reservation is complete it will re-schedule the 3605 * work with no reserved_chanctx so verify chandef to check if it 3606 * completed successfully 3607 */ 3608 3609 if (link_data->reserved_chanctx) { 3610 /* 3611 * with multi-vif csa driver may call ieee80211_csa_finish() 3612 * many times while waiting for other interfaces to use their 3613 * reservations 3614 */ 3615 if (link_data->reserved_ready) 3616 return 0; 3617 3618 return ieee80211_link_use_reserved_context(&sdata->deflink); 3619 } 3620 3621 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3622 &link_data->csa_chandef)) 3623 return -EINVAL; 3624 3625 sdata->vif.bss_conf.csa_active = false; 3626 3627 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3628 if (err) 3629 return err; 3630 3631 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { 3632 sdata->vif.bss_conf.eht_puncturing = 3633 sdata->vif.bss_conf.csa_punct_bitmap; 3634 changed |= BSS_CHANGED_EHT_PUNCTURING; 3635 } 3636 3637 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 3638 3639 if (link_data->csa_block_tx) { 3640 ieee80211_wake_vif_queues(local, sdata, 3641 IEEE80211_QUEUE_STOP_REASON_CSA); 3642 link_data->csa_block_tx = false; 3643 } 3644 3645 err = drv_post_channel_switch(link_data); 3646 if (err) 3647 return err; 3648 3649 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef, 0, 3650 sdata->vif.bss_conf.eht_puncturing); 3651 3652 return 0; 3653 } 3654 3655 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) 3656 { 3657 struct ieee80211_sub_if_data *sdata = link_data->sdata; 3658 3659 if (__ieee80211_csa_finalize(link_data)) { 3660 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3661 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3662 GFP_KERNEL); 3663 } 3664 } 3665 3666 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) 3667 { 3668 struct ieee80211_link_data *link = 3669 container_of(work, struct ieee80211_link_data, csa_finalize_work); 3670 struct ieee80211_sub_if_data *sdata = link->sdata; 3671 struct ieee80211_local *local = sdata->local; 3672 3673 lockdep_assert_wiphy(local->hw.wiphy); 3674 3675 /* AP might have been stopped while waiting for the lock. */ 3676 if (!link->conf->csa_active) 3677 return; 3678 3679 if (!ieee80211_sdata_running(sdata)) 3680 return; 3681 3682 ieee80211_csa_finalize(link); 3683 } 3684 3685 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3686 struct cfg80211_csa_settings *params, 3687 u64 *changed) 3688 { 3689 struct ieee80211_csa_settings csa = {}; 3690 int err; 3691 3692 switch (sdata->vif.type) { 3693 case NL80211_IFTYPE_AP: 3694 sdata->deflink.u.ap.next_beacon = 3695 cfg80211_beacon_dup(¶ms->beacon_after); 3696 if (!sdata->deflink.u.ap.next_beacon) 3697 return -ENOMEM; 3698 3699 /* 3700 * With a count of 0, we don't have to wait for any 3701 * TBTT before switching, so complete the CSA 3702 * immediately. In theory, with a count == 1 we 3703 * should delay the switch until just before the next 3704 * TBTT, but that would complicate things so we switch 3705 * immediately too. If we would delay the switch 3706 * until the next TBTT, we would have to set the probe 3707 * response here. 3708 * 3709 * TODO: A channel switch with count <= 1 without 3710 * sending a CSA action frame is kind of useless, 3711 * because the clients won't know we're changing 3712 * channels. The action frame must be implemented 3713 * either here or in the userspace. 3714 */ 3715 if (params->count <= 1) 3716 break; 3717 3718 if ((params->n_counter_offsets_beacon > 3719 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3720 (params->n_counter_offsets_presp > 3721 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3722 ieee80211_free_next_beacon(&sdata->deflink); 3723 return -EINVAL; 3724 } 3725 3726 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3727 csa.counter_offsets_presp = params->counter_offsets_presp; 3728 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3729 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3730 csa.count = params->count; 3731 3732 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 3733 ¶ms->beacon_csa, &csa, 3734 NULL, changed); 3735 if (err < 0) { 3736 ieee80211_free_next_beacon(&sdata->deflink); 3737 return err; 3738 } 3739 3740 break; 3741 case NL80211_IFTYPE_ADHOC: 3742 if (!sdata->vif.cfg.ibss_joined) 3743 return -EINVAL; 3744 3745 if (params->chandef.width != sdata->u.ibss.chandef.width) 3746 return -EINVAL; 3747 3748 switch (params->chandef.width) { 3749 case NL80211_CHAN_WIDTH_40: 3750 if (cfg80211_get_chandef_type(¶ms->chandef) != 3751 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3752 return -EINVAL; 3753 break; 3754 case NL80211_CHAN_WIDTH_5: 3755 case NL80211_CHAN_WIDTH_10: 3756 case NL80211_CHAN_WIDTH_20_NOHT: 3757 case NL80211_CHAN_WIDTH_20: 3758 break; 3759 default: 3760 return -EINVAL; 3761 } 3762 3763 /* changes into another band are not supported */ 3764 if (sdata->u.ibss.chandef.chan->band != 3765 params->chandef.chan->band) 3766 return -EINVAL; 3767 3768 /* see comments in the NL80211_IFTYPE_AP block */ 3769 if (params->count > 1) { 3770 err = ieee80211_ibss_csa_beacon(sdata, params, changed); 3771 if (err < 0) 3772 return err; 3773 } 3774 3775 ieee80211_send_action_csa(sdata, params); 3776 3777 break; 3778 #ifdef CONFIG_MAC80211_MESH 3779 case NL80211_IFTYPE_MESH_POINT: { 3780 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3781 3782 /* changes into another band are not supported */ 3783 if (sdata->vif.bss_conf.chandef.chan->band != 3784 params->chandef.chan->band) 3785 return -EINVAL; 3786 3787 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3788 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3789 if (!ifmsh->pre_value) 3790 ifmsh->pre_value = 1; 3791 else 3792 ifmsh->pre_value++; 3793 } 3794 3795 /* see comments in the NL80211_IFTYPE_AP block */ 3796 if (params->count > 1) { 3797 err = ieee80211_mesh_csa_beacon(sdata, params, changed); 3798 if (err < 0) { 3799 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3800 return err; 3801 } 3802 } 3803 3804 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3805 ieee80211_send_action_csa(sdata, params); 3806 3807 break; 3808 } 3809 #endif 3810 default: 3811 return -EOPNOTSUPP; 3812 } 3813 3814 return 0; 3815 } 3816 3817 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3818 { 3819 sdata->vif.bss_conf.color_change_active = false; 3820 3821 ieee80211_free_next_beacon(&sdata->deflink); 3822 3823 cfg80211_color_change_aborted_notify(sdata->dev); 3824 } 3825 3826 static int 3827 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3828 struct cfg80211_csa_settings *params) 3829 { 3830 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3831 struct ieee80211_local *local = sdata->local; 3832 struct ieee80211_channel_switch ch_switch; 3833 struct ieee80211_chanctx_conf *conf; 3834 struct ieee80211_chanctx *chanctx; 3835 u64 changed = 0; 3836 int err; 3837 3838 lockdep_assert_wiphy(local->hw.wiphy); 3839 3840 if (!list_empty(&local->roc_list) || local->scanning) 3841 return -EBUSY; 3842 3843 if (sdata->wdev.cac_started) 3844 return -EBUSY; 3845 3846 if (cfg80211_chandef_identical(¶ms->chandef, 3847 &sdata->vif.bss_conf.chandef)) 3848 return -EINVAL; 3849 3850 /* don't allow another channel switch if one is already active. */ 3851 if (sdata->vif.bss_conf.csa_active) 3852 return -EBUSY; 3853 3854 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, 3855 lockdep_is_held(&local->hw.wiphy->mtx)); 3856 if (!conf) { 3857 err = -EBUSY; 3858 goto out; 3859 } 3860 3861 if (params->chandef.chan->freq_offset) { 3862 /* this may work, but is untested */ 3863 err = -EOPNOTSUPP; 3864 goto out; 3865 } 3866 3867 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3868 3869 ch_switch.timestamp = 0; 3870 ch_switch.device_timestamp = 0; 3871 ch_switch.block_tx = params->block_tx; 3872 ch_switch.chandef = params->chandef; 3873 ch_switch.count = params->count; 3874 3875 err = drv_pre_channel_switch(sdata, &ch_switch); 3876 if (err) 3877 goto out; 3878 3879 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef, 3880 chanctx->mode, 3881 params->radar_required); 3882 if (err) 3883 goto out; 3884 3885 /* if reservation is invalid then this will fail */ 3886 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3887 if (err) { 3888 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3889 goto out; 3890 } 3891 3892 /* if there is a color change in progress, abort it */ 3893 if (sdata->vif.bss_conf.color_change_active) 3894 ieee80211_color_change_abort(sdata); 3895 3896 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3897 if (err) { 3898 ieee80211_link_unreserve_chanctx(&sdata->deflink); 3899 goto out; 3900 } 3901 3902 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) 3903 goto out; 3904 3905 sdata->deflink.csa_chandef = params->chandef; 3906 sdata->deflink.csa_block_tx = params->block_tx; 3907 sdata->vif.bss_conf.csa_active = true; 3908 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; 3909 3910 if (sdata->deflink.csa_block_tx) 3911 ieee80211_stop_vif_queues(local, sdata, 3912 IEEE80211_QUEUE_STOP_REASON_CSA); 3913 3914 cfg80211_ch_switch_started_notify(sdata->dev, 3915 &sdata->deflink.csa_chandef, 0, 3916 params->count, params->block_tx, 3917 sdata->vif.bss_conf.csa_punct_bitmap); 3918 3919 if (changed) { 3920 ieee80211_link_info_change_notify(sdata, &sdata->deflink, 3921 changed); 3922 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3923 } else { 3924 /* if the beacon didn't change, we can finalize immediately */ 3925 ieee80211_csa_finalize(&sdata->deflink); 3926 } 3927 3928 out: 3929 return err; 3930 } 3931 3932 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3933 struct cfg80211_csa_settings *params) 3934 { 3935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3936 struct ieee80211_local *local = sdata->local; 3937 3938 lockdep_assert_wiphy(local->hw.wiphy); 3939 3940 return __ieee80211_channel_switch(wiphy, dev, params); 3941 } 3942 3943 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3944 { 3945 lockdep_assert_wiphy(local->hw.wiphy); 3946 3947 local->roc_cookie_counter++; 3948 3949 /* wow, you wrapped 64 bits ... more likely a bug */ 3950 if (WARN_ON(local->roc_cookie_counter == 0)) 3951 local->roc_cookie_counter++; 3952 3953 return local->roc_cookie_counter; 3954 } 3955 3956 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3957 u64 *cookie, gfp_t gfp) 3958 { 3959 unsigned long spin_flags; 3960 struct sk_buff *ack_skb; 3961 int id; 3962 3963 ack_skb = skb_copy(skb, gfp); 3964 if (!ack_skb) 3965 return -ENOMEM; 3966 3967 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3968 id = idr_alloc(&local->ack_status_frames, ack_skb, 3969 1, 0x2000, GFP_ATOMIC); 3970 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3971 3972 if (id < 0) { 3973 kfree_skb(ack_skb); 3974 return -ENOMEM; 3975 } 3976 3977 IEEE80211_SKB_CB(skb)->status_data_idr = 1; 3978 IEEE80211_SKB_CB(skb)->status_data = id; 3979 3980 *cookie = ieee80211_mgmt_tx_cookie(local); 3981 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3982 3983 return 0; 3984 } 3985 3986 static void 3987 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3988 struct wireless_dev *wdev, 3989 struct mgmt_frame_regs *upd) 3990 { 3991 struct ieee80211_local *local = wiphy_priv(wiphy); 3992 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3993 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3994 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3995 bool global_change, intf_change; 3996 3997 global_change = 3998 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3999 (local->rx_mcast_action_reg != 4000 !!(upd->global_mcast_stypes & action_mask)); 4001 local->probe_req_reg = upd->global_stypes & preq_mask; 4002 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 4003 4004 intf_change = (sdata->vif.probe_req_reg != 4005 !!(upd->interface_stypes & preq_mask)) || 4006 (sdata->vif.rx_mcast_action_reg != 4007 !!(upd->interface_mcast_stypes & action_mask)); 4008 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 4009 sdata->vif.rx_mcast_action_reg = 4010 upd->interface_mcast_stypes & action_mask; 4011 4012 if (!local->open_count) 4013 return; 4014 4015 if (intf_change && ieee80211_sdata_running(sdata)) 4016 drv_config_iface_filter(local, sdata, 4017 sdata->vif.probe_req_reg ? 4018 FIF_PROBE_REQ : 0, 4019 FIF_PROBE_REQ); 4020 4021 if (global_change) 4022 ieee80211_configure_filter(local); 4023 } 4024 4025 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 4026 { 4027 struct ieee80211_local *local = wiphy_priv(wiphy); 4028 4029 if (local->started) 4030 return -EOPNOTSUPP; 4031 4032 return drv_set_antenna(local, tx_ant, rx_ant); 4033 } 4034 4035 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 4036 { 4037 struct ieee80211_local *local = wiphy_priv(wiphy); 4038 4039 return drv_get_antenna(local, tx_ant, rx_ant); 4040 } 4041 4042 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 4043 struct net_device *dev, 4044 struct cfg80211_gtk_rekey_data *data) 4045 { 4046 struct ieee80211_local *local = wiphy_priv(wiphy); 4047 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4048 4049 if (!local->ops->set_rekey_data) 4050 return -EOPNOTSUPP; 4051 4052 drv_set_rekey_data(local, sdata, data); 4053 4054 return 0; 4055 } 4056 4057 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 4058 const u8 *peer, u64 *cookie) 4059 { 4060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4061 struct ieee80211_local *local = sdata->local; 4062 struct ieee80211_qos_hdr *nullfunc; 4063 struct sk_buff *skb; 4064 int size = sizeof(*nullfunc); 4065 __le16 fc; 4066 bool qos; 4067 struct ieee80211_tx_info *info; 4068 struct sta_info *sta; 4069 struct ieee80211_chanctx_conf *chanctx_conf; 4070 enum nl80211_band band; 4071 int ret; 4072 4073 /* the lock is needed to assign the cookie later */ 4074 lockdep_assert_wiphy(local->hw.wiphy); 4075 4076 rcu_read_lock(); 4077 sta = sta_info_get_bss(sdata, peer); 4078 if (!sta) { 4079 ret = -ENOLINK; 4080 goto unlock; 4081 } 4082 4083 qos = sta->sta.wme; 4084 4085 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 4086 if (WARN_ON(!chanctx_conf)) { 4087 ret = -EINVAL; 4088 goto unlock; 4089 } 4090 band = chanctx_conf->def.chan->band; 4091 4092 if (qos) { 4093 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4094 IEEE80211_STYPE_QOS_NULLFUNC | 4095 IEEE80211_FCTL_FROMDS); 4096 } else { 4097 size -= 2; 4098 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 4099 IEEE80211_STYPE_NULLFUNC | 4100 IEEE80211_FCTL_FROMDS); 4101 } 4102 4103 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 4104 if (!skb) { 4105 ret = -ENOMEM; 4106 goto unlock; 4107 } 4108 4109 skb->dev = dev; 4110 4111 skb_reserve(skb, local->hw.extra_tx_headroom); 4112 4113 nullfunc = skb_put(skb, size); 4114 nullfunc->frame_control = fc; 4115 nullfunc->duration_id = 0; 4116 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 4117 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 4118 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 4119 nullfunc->seq_ctrl = 0; 4120 4121 info = IEEE80211_SKB_CB(skb); 4122 4123 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 4124 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 4125 info->band = band; 4126 4127 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 4128 skb->priority = 7; 4129 if (qos) 4130 nullfunc->qos_ctrl = cpu_to_le16(7); 4131 4132 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 4133 if (ret) { 4134 kfree_skb(skb); 4135 goto unlock; 4136 } 4137 4138 local_bh_disable(); 4139 ieee80211_xmit(sdata, sta, skb); 4140 local_bh_enable(); 4141 4142 ret = 0; 4143 unlock: 4144 rcu_read_unlock(); 4145 4146 return ret; 4147 } 4148 4149 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 4150 struct wireless_dev *wdev, 4151 unsigned int link_id, 4152 struct cfg80211_chan_def *chandef) 4153 { 4154 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4155 struct ieee80211_local *local = wiphy_priv(wiphy); 4156 struct ieee80211_chanctx_conf *chanctx_conf; 4157 struct ieee80211_link_data *link; 4158 int ret = -ENODATA; 4159 4160 rcu_read_lock(); 4161 link = rcu_dereference(sdata->link[link_id]); 4162 if (!link) { 4163 ret = -ENOLINK; 4164 goto out; 4165 } 4166 4167 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 4168 if (chanctx_conf) { 4169 *chandef = link->conf->chandef; 4170 ret = 0; 4171 } else if (local->open_count > 0 && 4172 local->open_count == local->monitors && 4173 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 4174 if (local->use_chanctx) 4175 *chandef = local->monitor_chandef; 4176 else 4177 *chandef = local->_oper_chandef; 4178 ret = 0; 4179 } 4180 out: 4181 rcu_read_unlock(); 4182 4183 return ret; 4184 } 4185 4186 #ifdef CONFIG_PM 4187 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 4188 { 4189 drv_set_wakeup(wiphy_priv(wiphy), enabled); 4190 } 4191 #endif 4192 4193 static int ieee80211_set_qos_map(struct wiphy *wiphy, 4194 struct net_device *dev, 4195 struct cfg80211_qos_map *qos_map) 4196 { 4197 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4198 struct mac80211_qos_map *new_qos_map, *old_qos_map; 4199 4200 if (qos_map) { 4201 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 4202 if (!new_qos_map) 4203 return -ENOMEM; 4204 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 4205 } else { 4206 /* A NULL qos_map was passed to disable QoS mapping */ 4207 new_qos_map = NULL; 4208 } 4209 4210 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 4211 rcu_assign_pointer(sdata->qos_map, new_qos_map); 4212 if (old_qos_map) 4213 kfree_rcu(old_qos_map, rcu_head); 4214 4215 return 0; 4216 } 4217 4218 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 4219 struct net_device *dev, 4220 unsigned int link_id, 4221 struct cfg80211_chan_def *chandef) 4222 { 4223 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4224 struct ieee80211_link_data *link; 4225 int ret; 4226 u64 changed = 0; 4227 4228 link = sdata_dereference(sdata->link[link_id], sdata); 4229 4230 ret = ieee80211_link_change_bandwidth(link, chandef, &changed); 4231 if (ret == 0) 4232 ieee80211_link_info_change_notify(sdata, link, changed); 4233 4234 return ret; 4235 } 4236 4237 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4238 u8 tsid, const u8 *peer, u8 up, 4239 u16 admitted_time) 4240 { 4241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4242 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4243 int ac = ieee802_1d_to_ac[up]; 4244 4245 if (sdata->vif.type != NL80211_IFTYPE_STATION) 4246 return -EOPNOTSUPP; 4247 4248 if (!(sdata->wmm_acm & BIT(up))) 4249 return -EINVAL; 4250 4251 if (ifmgd->tx_tspec[ac].admitted_time) 4252 return -EBUSY; 4253 4254 if (admitted_time) { 4255 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4256 ifmgd->tx_tspec[ac].tsid = tsid; 4257 ifmgd->tx_tspec[ac].up = up; 4258 } 4259 4260 return 0; 4261 } 4262 4263 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4264 u8 tsid, const u8 *peer) 4265 { 4266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4267 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4268 struct ieee80211_local *local = wiphy_priv(wiphy); 4269 int ac; 4270 4271 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4272 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4273 4274 /* skip unused entries */ 4275 if (!tx_tspec->admitted_time) 4276 continue; 4277 4278 if (tx_tspec->tsid != tsid) 4279 continue; 4280 4281 /* due to this new packets will be reassigned to non-ACM ACs */ 4282 tx_tspec->up = -1; 4283 4284 /* Make sure that all packets have been sent to avoid to 4285 * restore the QoS params on packets that are still on the 4286 * queues. 4287 */ 4288 synchronize_net(); 4289 ieee80211_flush_queues(local, sdata, false); 4290 4291 /* restore the normal QoS parameters 4292 * (unconditionally to avoid races) 4293 */ 4294 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4295 tx_tspec->downgraded = false; 4296 ieee80211_sta_handle_tspec_ac_params(sdata); 4297 4298 /* finally clear all the data */ 4299 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4300 4301 return 0; 4302 } 4303 4304 return -ENOENT; 4305 } 4306 4307 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4308 u8 inst_id, 4309 enum nl80211_nan_func_term_reason reason, 4310 gfp_t gfp) 4311 { 4312 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4313 struct cfg80211_nan_func *func; 4314 u64 cookie; 4315 4316 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4317 return; 4318 4319 spin_lock_bh(&sdata->u.nan.func_lock); 4320 4321 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4322 if (WARN_ON(!func)) { 4323 spin_unlock_bh(&sdata->u.nan.func_lock); 4324 return; 4325 } 4326 4327 cookie = func->cookie; 4328 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4329 4330 spin_unlock_bh(&sdata->u.nan.func_lock); 4331 4332 cfg80211_free_nan_func(func); 4333 4334 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4335 reason, cookie, gfp); 4336 } 4337 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4338 4339 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4340 struct cfg80211_nan_match_params *match, 4341 gfp_t gfp) 4342 { 4343 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4344 struct cfg80211_nan_func *func; 4345 4346 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4347 return; 4348 4349 spin_lock_bh(&sdata->u.nan.func_lock); 4350 4351 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4352 if (WARN_ON(!func)) { 4353 spin_unlock_bh(&sdata->u.nan.func_lock); 4354 return; 4355 } 4356 match->cookie = func->cookie; 4357 4358 spin_unlock_bh(&sdata->u.nan.func_lock); 4359 4360 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4361 } 4362 EXPORT_SYMBOL(ieee80211_nan_func_match); 4363 4364 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4365 struct net_device *dev, 4366 const bool enabled) 4367 { 4368 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4369 4370 sdata->u.ap.multicast_to_unicast = enabled; 4371 4372 return 0; 4373 } 4374 4375 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4376 struct txq_info *txqi) 4377 { 4378 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4379 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4380 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4381 } 4382 4383 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4384 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4385 txqstats->backlog_packets = txqi->tin.backlog_packets; 4386 } 4387 4388 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4389 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4390 txqstats->flows = txqi->tin.flows; 4391 } 4392 4393 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4394 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4395 txqstats->drops = txqi->cstats.drop_count; 4396 } 4397 4398 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4399 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4400 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4401 } 4402 4403 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4404 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4405 txqstats->overlimit = txqi->tin.overlimit; 4406 } 4407 4408 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4409 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4410 txqstats->collisions = txqi->tin.collisions; 4411 } 4412 4413 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4414 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4415 txqstats->tx_bytes = txqi->tin.tx_bytes; 4416 } 4417 4418 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4419 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4420 txqstats->tx_packets = txqi->tin.tx_packets; 4421 } 4422 } 4423 4424 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4425 struct wireless_dev *wdev, 4426 struct cfg80211_txq_stats *txqstats) 4427 { 4428 struct ieee80211_local *local = wiphy_priv(wiphy); 4429 struct ieee80211_sub_if_data *sdata; 4430 int ret = 0; 4431 4432 spin_lock_bh(&local->fq.lock); 4433 rcu_read_lock(); 4434 4435 if (wdev) { 4436 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4437 if (!sdata->vif.txq) { 4438 ret = 1; 4439 goto out; 4440 } 4441 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4442 } else { 4443 /* phy stats */ 4444 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4445 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4446 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4447 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4448 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4449 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4450 txqstats->backlog_packets = local->fq.backlog; 4451 txqstats->backlog_bytes = local->fq.memory_usage; 4452 txqstats->overlimit = local->fq.overlimit; 4453 txqstats->overmemory = local->fq.overmemory; 4454 txqstats->collisions = local->fq.collisions; 4455 txqstats->max_flows = local->fq.flows_cnt; 4456 } 4457 4458 out: 4459 rcu_read_unlock(); 4460 spin_unlock_bh(&local->fq.lock); 4461 4462 return ret; 4463 } 4464 4465 static int 4466 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4467 struct net_device *dev, 4468 struct cfg80211_ftm_responder_stats *ftm_stats) 4469 { 4470 struct ieee80211_local *local = wiphy_priv(wiphy); 4471 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4472 4473 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4474 } 4475 4476 static int 4477 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4478 struct cfg80211_pmsr_request *request) 4479 { 4480 struct ieee80211_local *local = wiphy_priv(wiphy); 4481 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4482 4483 return drv_start_pmsr(local, sdata, request); 4484 } 4485 4486 static void 4487 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4488 struct cfg80211_pmsr_request *request) 4489 { 4490 struct ieee80211_local *local = wiphy_priv(wiphy); 4491 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4492 4493 return drv_abort_pmsr(local, sdata, request); 4494 } 4495 4496 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4497 struct net_device *dev, 4498 struct cfg80211_tid_config *tid_conf) 4499 { 4500 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4501 struct sta_info *sta; 4502 4503 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4504 4505 if (!sdata->local->ops->set_tid_config) 4506 return -EOPNOTSUPP; 4507 4508 if (!tid_conf->peer) 4509 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4510 4511 sta = sta_info_get_bss(sdata, tid_conf->peer); 4512 if (!sta) 4513 return -ENOENT; 4514 4515 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4516 } 4517 4518 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4519 struct net_device *dev, 4520 const u8 *peer, u8 tids) 4521 { 4522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4523 struct sta_info *sta; 4524 4525 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4526 4527 if (!sdata->local->ops->reset_tid_config) 4528 return -EOPNOTSUPP; 4529 4530 if (!peer) 4531 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4532 4533 sta = sta_info_get_bss(sdata, peer); 4534 if (!sta) 4535 return -ENOENT; 4536 4537 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4538 } 4539 4540 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4541 struct cfg80211_sar_specs *sar) 4542 { 4543 struct ieee80211_local *local = wiphy_priv(wiphy); 4544 4545 if (!local->ops->set_sar_specs) 4546 return -EOPNOTSUPP; 4547 4548 return local->ops->set_sar_specs(&local->hw, sar); 4549 } 4550 4551 static int 4552 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4553 u64 *changed) 4554 { 4555 switch (sdata->vif.type) { 4556 case NL80211_IFTYPE_AP: { 4557 int ret; 4558 4559 if (!sdata->deflink.u.ap.next_beacon) 4560 return -EINVAL; 4561 4562 ret = ieee80211_assign_beacon(sdata, &sdata->deflink, 4563 sdata->deflink.u.ap.next_beacon, 4564 NULL, NULL, changed); 4565 ieee80211_free_next_beacon(&sdata->deflink); 4566 4567 if (ret < 0) 4568 return ret; 4569 4570 break; 4571 } 4572 default: 4573 WARN_ON_ONCE(1); 4574 return -EINVAL; 4575 } 4576 4577 return 0; 4578 } 4579 4580 static int 4581 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4582 struct cfg80211_color_change_settings *params, 4583 u64 *changed) 4584 { 4585 struct ieee80211_color_change_settings color_change = {}; 4586 int err; 4587 4588 switch (sdata->vif.type) { 4589 case NL80211_IFTYPE_AP: 4590 sdata->deflink.u.ap.next_beacon = 4591 cfg80211_beacon_dup(¶ms->beacon_next); 4592 if (!sdata->deflink.u.ap.next_beacon) 4593 return -ENOMEM; 4594 4595 if (params->count <= 1) 4596 break; 4597 4598 color_change.counter_offset_beacon = 4599 params->counter_offset_beacon; 4600 color_change.counter_offset_presp = 4601 params->counter_offset_presp; 4602 color_change.count = params->count; 4603 4604 err = ieee80211_assign_beacon(sdata, &sdata->deflink, 4605 ¶ms->beacon_color_change, 4606 NULL, &color_change, changed); 4607 if (err < 0) { 4608 ieee80211_free_next_beacon(&sdata->deflink); 4609 return err; 4610 } 4611 break; 4612 default: 4613 return -EOPNOTSUPP; 4614 } 4615 4616 return 0; 4617 } 4618 4619 static void 4620 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4621 u8 color, int enable, u64 changed) 4622 { 4623 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4624 4625 sdata->vif.bss_conf.he_bss_color.color = color; 4626 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4627 changed |= BSS_CHANGED_HE_BSS_COLOR; 4628 4629 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed); 4630 4631 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4632 struct ieee80211_sub_if_data *child; 4633 4634 list_for_each_entry(child, &sdata->local->interfaces, list) { 4635 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4636 child->vif.bss_conf.he_bss_color.color = color; 4637 child->vif.bss_conf.he_bss_color.enabled = enable; 4638 ieee80211_link_info_change_notify(child, 4639 &child->deflink, 4640 BSS_CHANGED_HE_BSS_COLOR); 4641 } 4642 } 4643 } 4644 } 4645 4646 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4647 { 4648 struct ieee80211_local *local = sdata->local; 4649 u64 changed = 0; 4650 int err; 4651 4652 lockdep_assert_wiphy(local->hw.wiphy); 4653 4654 sdata->vif.bss_conf.color_change_active = false; 4655 4656 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4657 if (err) { 4658 cfg80211_color_change_aborted_notify(sdata->dev); 4659 return err; 4660 } 4661 4662 ieee80211_color_change_bss_config_notify(sdata, 4663 sdata->vif.bss_conf.color_change_color, 4664 1, changed); 4665 cfg80211_color_change_notify(sdata->dev); 4666 4667 return 0; 4668 } 4669 4670 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 4671 struct wiphy_work *work) 4672 { 4673 struct ieee80211_sub_if_data *sdata = 4674 container_of(work, struct ieee80211_sub_if_data, 4675 deflink.color_change_finalize_work); 4676 struct ieee80211_local *local = sdata->local; 4677 4678 lockdep_assert_wiphy(local->hw.wiphy); 4679 4680 /* AP might have been stopped while waiting for the lock. */ 4681 if (!sdata->vif.bss_conf.color_change_active) 4682 return; 4683 4684 if (!ieee80211_sdata_running(sdata)) 4685 return; 4686 4687 ieee80211_color_change_finalize(sdata); 4688 } 4689 4690 void ieee80211_color_collision_detection_work(struct work_struct *work) 4691 { 4692 struct delayed_work *delayed_work = to_delayed_work(work); 4693 struct ieee80211_link_data *link = 4694 container_of(delayed_work, struct ieee80211_link_data, 4695 color_collision_detect_work); 4696 struct ieee80211_sub_if_data *sdata = link->sdata; 4697 4698 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap); 4699 } 4700 4701 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4702 { 4703 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4704 4705 wiphy_work_queue(sdata->local->hw.wiphy, 4706 &sdata->deflink.color_change_finalize_work); 4707 } 4708 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4709 4710 void 4711 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4712 u64 color_bitmap, gfp_t gfp) 4713 { 4714 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4715 struct ieee80211_link_data *link = &sdata->deflink; 4716 4717 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) 4718 return; 4719 4720 if (delayed_work_pending(&link->color_collision_detect_work)) 4721 return; 4722 4723 link->color_bitmap = color_bitmap; 4724 /* queue the color collision detection event every 500 ms in order to 4725 * avoid sending too much netlink messages to userspace. 4726 */ 4727 ieee80211_queue_delayed_work(&sdata->local->hw, 4728 &link->color_collision_detect_work, 4729 msecs_to_jiffies(500)); 4730 } 4731 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); 4732 4733 static int 4734 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4735 struct cfg80211_color_change_settings *params) 4736 { 4737 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4738 struct ieee80211_local *local = sdata->local; 4739 u64 changed = 0; 4740 int err; 4741 4742 lockdep_assert_wiphy(local->hw.wiphy); 4743 4744 if (sdata->vif.bss_conf.nontransmitted) 4745 return -EINVAL; 4746 4747 /* don't allow another color change if one is already active or if csa 4748 * is active 4749 */ 4750 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { 4751 err = -EBUSY; 4752 goto out; 4753 } 4754 4755 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4756 if (err) 4757 goto out; 4758 4759 sdata->vif.bss_conf.color_change_active = true; 4760 sdata->vif.bss_conf.color_change_color = params->color; 4761 4762 cfg80211_color_change_started_notify(sdata->dev, params->count); 4763 4764 if (changed) 4765 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4766 else 4767 /* if the beacon didn't change, we can finalize immediately */ 4768 ieee80211_color_change_finalize(sdata); 4769 4770 out: 4771 4772 return err; 4773 } 4774 4775 static int 4776 ieee80211_set_radar_background(struct wiphy *wiphy, 4777 struct cfg80211_chan_def *chandef) 4778 { 4779 struct ieee80211_local *local = wiphy_priv(wiphy); 4780 4781 if (!local->ops->set_radar_background) 4782 return -EOPNOTSUPP; 4783 4784 return local->ops->set_radar_background(&local->hw, chandef); 4785 } 4786 4787 static int ieee80211_add_intf_link(struct wiphy *wiphy, 4788 struct wireless_dev *wdev, 4789 unsigned int link_id) 4790 { 4791 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4792 4793 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4794 4795 if (wdev->use_4addr) 4796 return -EOPNOTSUPP; 4797 4798 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4799 } 4800 4801 static void ieee80211_del_intf_link(struct wiphy *wiphy, 4802 struct wireless_dev *wdev, 4803 unsigned int link_id) 4804 { 4805 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4806 4807 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4808 4809 ieee80211_vif_set_links(sdata, wdev->valid_links, 0); 4810 } 4811 4812 static int sta_add_link_station(struct ieee80211_local *local, 4813 struct ieee80211_sub_if_data *sdata, 4814 struct link_station_parameters *params) 4815 { 4816 struct sta_info *sta; 4817 int ret; 4818 4819 sta = sta_info_get_bss(sdata, params->mld_mac); 4820 if (!sta) 4821 return -ENOENT; 4822 4823 if (!sta->sta.valid_links) 4824 return -EINVAL; 4825 4826 if (sta->sta.valid_links & BIT(params->link_id)) 4827 return -EALREADY; 4828 4829 ret = ieee80211_sta_allocate_link(sta, params->link_id); 4830 if (ret) 4831 return ret; 4832 4833 ret = sta_link_apply_parameters(local, sta, true, params); 4834 if (ret) { 4835 ieee80211_sta_free_link(sta, params->link_id); 4836 return ret; 4837 } 4838 4839 /* ieee80211_sta_activate_link frees the link upon failure */ 4840 return ieee80211_sta_activate_link(sta, params->link_id); 4841 } 4842 4843 static int 4844 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, 4845 struct link_station_parameters *params) 4846 { 4847 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4848 struct ieee80211_local *local = wiphy_priv(wiphy); 4849 4850 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4851 4852 return sta_add_link_station(local, sdata, params); 4853 } 4854 4855 static int sta_mod_link_station(struct ieee80211_local *local, 4856 struct ieee80211_sub_if_data *sdata, 4857 struct link_station_parameters *params) 4858 { 4859 struct sta_info *sta; 4860 4861 sta = sta_info_get_bss(sdata, params->mld_mac); 4862 if (!sta) 4863 return -ENOENT; 4864 4865 if (!(sta->sta.valid_links & BIT(params->link_id))) 4866 return -EINVAL; 4867 4868 return sta_link_apply_parameters(local, sta, false, params); 4869 } 4870 4871 static int 4872 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, 4873 struct link_station_parameters *params) 4874 { 4875 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4876 struct ieee80211_local *local = wiphy_priv(wiphy); 4877 4878 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4879 4880 return sta_mod_link_station(local, sdata, params); 4881 } 4882 4883 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, 4884 struct link_station_del_parameters *params) 4885 { 4886 struct sta_info *sta; 4887 4888 sta = sta_info_get_bss(sdata, params->mld_mac); 4889 if (!sta) 4890 return -ENOENT; 4891 4892 if (!(sta->sta.valid_links & BIT(params->link_id))) 4893 return -EINVAL; 4894 4895 /* must not create a STA without links */ 4896 if (sta->sta.valid_links == BIT(params->link_id)) 4897 return -EINVAL; 4898 4899 ieee80211_sta_remove_link(sta, params->link_id); 4900 4901 return 0; 4902 } 4903 4904 static int 4905 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, 4906 struct link_station_del_parameters *params) 4907 { 4908 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4909 4910 lockdep_assert_wiphy(sdata->local->hw.wiphy); 4911 4912 return sta_del_link_station(sdata, params); 4913 } 4914 4915 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, 4916 struct net_device *dev, 4917 struct cfg80211_set_hw_timestamp *hwts) 4918 { 4919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4920 struct ieee80211_local *local = sdata->local; 4921 4922 if (!local->ops->set_hw_timestamp) 4923 return -EOPNOTSUPP; 4924 4925 if (!check_sdata_in_driver(sdata)) 4926 return -EIO; 4927 4928 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); 4929 } 4930 4931 const struct cfg80211_ops mac80211_config_ops = { 4932 .add_virtual_intf = ieee80211_add_iface, 4933 .del_virtual_intf = ieee80211_del_iface, 4934 .change_virtual_intf = ieee80211_change_iface, 4935 .start_p2p_device = ieee80211_start_p2p_device, 4936 .stop_p2p_device = ieee80211_stop_p2p_device, 4937 .add_key = ieee80211_add_key, 4938 .del_key = ieee80211_del_key, 4939 .get_key = ieee80211_get_key, 4940 .set_default_key = ieee80211_config_default_key, 4941 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4942 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4943 .start_ap = ieee80211_start_ap, 4944 .change_beacon = ieee80211_change_beacon, 4945 .stop_ap = ieee80211_stop_ap, 4946 .add_station = ieee80211_add_station, 4947 .del_station = ieee80211_del_station, 4948 .change_station = ieee80211_change_station, 4949 .get_station = ieee80211_get_station, 4950 .dump_station = ieee80211_dump_station, 4951 .dump_survey = ieee80211_dump_survey, 4952 #ifdef CONFIG_MAC80211_MESH 4953 .add_mpath = ieee80211_add_mpath, 4954 .del_mpath = ieee80211_del_mpath, 4955 .change_mpath = ieee80211_change_mpath, 4956 .get_mpath = ieee80211_get_mpath, 4957 .dump_mpath = ieee80211_dump_mpath, 4958 .get_mpp = ieee80211_get_mpp, 4959 .dump_mpp = ieee80211_dump_mpp, 4960 .update_mesh_config = ieee80211_update_mesh_config, 4961 .get_mesh_config = ieee80211_get_mesh_config, 4962 .join_mesh = ieee80211_join_mesh, 4963 .leave_mesh = ieee80211_leave_mesh, 4964 #endif 4965 .join_ocb = ieee80211_join_ocb, 4966 .leave_ocb = ieee80211_leave_ocb, 4967 .change_bss = ieee80211_change_bss, 4968 .inform_bss = ieee80211_inform_bss, 4969 .set_txq_params = ieee80211_set_txq_params, 4970 .set_monitor_channel = ieee80211_set_monitor_channel, 4971 .suspend = ieee80211_suspend, 4972 .resume = ieee80211_resume, 4973 .scan = ieee80211_scan, 4974 .abort_scan = ieee80211_abort_scan, 4975 .sched_scan_start = ieee80211_sched_scan_start, 4976 .sched_scan_stop = ieee80211_sched_scan_stop, 4977 .auth = ieee80211_auth, 4978 .assoc = ieee80211_assoc, 4979 .deauth = ieee80211_deauth, 4980 .disassoc = ieee80211_disassoc, 4981 .join_ibss = ieee80211_join_ibss, 4982 .leave_ibss = ieee80211_leave_ibss, 4983 .set_mcast_rate = ieee80211_set_mcast_rate, 4984 .set_wiphy_params = ieee80211_set_wiphy_params, 4985 .set_tx_power = ieee80211_set_tx_power, 4986 .get_tx_power = ieee80211_get_tx_power, 4987 .rfkill_poll = ieee80211_rfkill_poll, 4988 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4989 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4990 .set_power_mgmt = ieee80211_set_power_mgmt, 4991 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4992 .remain_on_channel = ieee80211_remain_on_channel, 4993 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4994 .mgmt_tx = ieee80211_mgmt_tx, 4995 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4996 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4997 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4998 .update_mgmt_frame_registrations = 4999 ieee80211_update_mgmt_frame_registrations, 5000 .set_antenna = ieee80211_set_antenna, 5001 .get_antenna = ieee80211_get_antenna, 5002 .set_rekey_data = ieee80211_set_rekey_data, 5003 .tdls_oper = ieee80211_tdls_oper, 5004 .tdls_mgmt = ieee80211_tdls_mgmt, 5005 .tdls_channel_switch = ieee80211_tdls_channel_switch, 5006 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 5007 .probe_client = ieee80211_probe_client, 5008 .set_noack_map = ieee80211_set_noack_map, 5009 #ifdef CONFIG_PM 5010 .set_wakeup = ieee80211_set_wakeup, 5011 #endif 5012 .get_channel = ieee80211_cfg_get_channel, 5013 .start_radar_detection = ieee80211_start_radar_detection, 5014 .end_cac = ieee80211_end_cac, 5015 .channel_switch = ieee80211_channel_switch, 5016 .set_qos_map = ieee80211_set_qos_map, 5017 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 5018 .add_tx_ts = ieee80211_add_tx_ts, 5019 .del_tx_ts = ieee80211_del_tx_ts, 5020 .start_nan = ieee80211_start_nan, 5021 .stop_nan = ieee80211_stop_nan, 5022 .nan_change_conf = ieee80211_nan_change_conf, 5023 .add_nan_func = ieee80211_add_nan_func, 5024 .del_nan_func = ieee80211_del_nan_func, 5025 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 5026 .tx_control_port = ieee80211_tx_control_port, 5027 .get_txq_stats = ieee80211_get_txq_stats, 5028 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 5029 .start_pmsr = ieee80211_start_pmsr, 5030 .abort_pmsr = ieee80211_abort_pmsr, 5031 .probe_mesh_link = ieee80211_probe_mesh_link, 5032 .set_tid_config = ieee80211_set_tid_config, 5033 .reset_tid_config = ieee80211_reset_tid_config, 5034 .set_sar_specs = ieee80211_set_sar_specs, 5035 .color_change = ieee80211_color_change, 5036 .set_radar_background = ieee80211_set_radar_background, 5037 .add_intf_link = ieee80211_add_intf_link, 5038 .del_intf_link = ieee80211_del_intf_link, 5039 .add_link_station = ieee80211_add_link_station, 5040 .mod_link_station = ieee80211_mod_link_station, 5041 .del_link_station = ieee80211_del_link_station, 5042 .set_hw_timestamp = ieee80211_set_hw_timestamp, 5043 }; 5044