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 void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = wiphy_dereference(local->hw.wiphy, 84 local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, 116 struct cfg80211_mbssid_config params) 117 { 118 struct ieee80211_sub_if_data *tx_sdata; 119 120 sdata->vif.mbssid_tx_vif = NULL; 121 sdata->vif.bss_conf.bssid_index = 0; 122 sdata->vif.bss_conf.nontransmitted = false; 123 sdata->vif.bss_conf.ema_ap = false; 124 125 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) 126 return -EINVAL; 127 128 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev); 129 if (!tx_sdata) 130 return -EINVAL; 131 132 if (tx_sdata == sdata) { 133 sdata->vif.mbssid_tx_vif = &sdata->vif; 134 } else { 135 sdata->vif.mbssid_tx_vif = &tx_sdata->vif; 136 sdata->vif.bss_conf.nontransmitted = true; 137 sdata->vif.bss_conf.bssid_index = params.index; 138 } 139 if (params.ema) 140 sdata->vif.bss_conf.ema_ap = true; 141 142 return 0; 143 } 144 145 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 146 const char *name, 147 unsigned char name_assign_type, 148 enum nl80211_iftype type, 149 struct vif_params *params) 150 { 151 struct ieee80211_local *local = wiphy_priv(wiphy); 152 struct wireless_dev *wdev; 153 struct ieee80211_sub_if_data *sdata; 154 int err; 155 156 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 157 if (err) 158 return ERR_PTR(err); 159 160 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 161 162 if (type == NL80211_IFTYPE_MONITOR) { 163 err = ieee80211_set_mon_options(sdata, params); 164 if (err) { 165 ieee80211_if_remove(sdata); 166 return NULL; 167 } 168 } 169 170 return wdev; 171 } 172 173 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 174 { 175 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 176 177 return 0; 178 } 179 180 static int ieee80211_change_iface(struct wiphy *wiphy, 181 struct net_device *dev, 182 enum nl80211_iftype type, 183 struct vif_params *params) 184 { 185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 186 struct ieee80211_local *local = sdata->local; 187 struct sta_info *sta; 188 int ret; 189 190 ret = ieee80211_if_change_type(sdata, type); 191 if (ret) 192 return ret; 193 194 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 195 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 196 ieee80211_check_fast_rx_iface(sdata); 197 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 198 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 199 200 if (params->use_4addr == ifmgd->use_4addr) 201 return 0; 202 203 sdata->u.mgd.use_4addr = params->use_4addr; 204 if (!ifmgd->associated) 205 return 0; 206 207 mutex_lock(&local->sta_mtx); 208 sta = sta_info_get(sdata, ifmgd->bssid); 209 if (sta) 210 drv_sta_set_4addr(local, sdata, &sta->sta, 211 params->use_4addr); 212 mutex_unlock(&local->sta_mtx); 213 214 if (params->use_4addr) 215 ieee80211_send_4addr_nullfunc(local, sdata); 216 } 217 218 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 219 ret = ieee80211_set_mon_options(sdata, params); 220 if (ret) 221 return ret; 222 } 223 224 return 0; 225 } 226 227 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 228 struct wireless_dev *wdev) 229 { 230 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 231 int ret; 232 233 mutex_lock(&sdata->local->chanctx_mtx); 234 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 235 mutex_unlock(&sdata->local->chanctx_mtx); 236 if (ret < 0) 237 return ret; 238 239 return ieee80211_do_open(wdev, true); 240 } 241 242 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 243 struct wireless_dev *wdev) 244 { 245 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 246 } 247 248 static int ieee80211_start_nan(struct wiphy *wiphy, 249 struct wireless_dev *wdev, 250 struct cfg80211_nan_conf *conf) 251 { 252 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 253 int ret; 254 255 mutex_lock(&sdata->local->chanctx_mtx); 256 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 257 mutex_unlock(&sdata->local->chanctx_mtx); 258 if (ret < 0) 259 return ret; 260 261 ret = ieee80211_do_open(wdev, true); 262 if (ret) 263 return ret; 264 265 ret = drv_start_nan(sdata->local, sdata, conf); 266 if (ret) 267 ieee80211_sdata_stop(sdata); 268 269 sdata->u.nan.conf = *conf; 270 271 return ret; 272 } 273 274 static void ieee80211_stop_nan(struct wiphy *wiphy, 275 struct wireless_dev *wdev) 276 { 277 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 278 279 drv_stop_nan(sdata->local, sdata); 280 ieee80211_sdata_stop(sdata); 281 } 282 283 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 284 struct wireless_dev *wdev, 285 struct cfg80211_nan_conf *conf, 286 u32 changes) 287 { 288 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 289 struct cfg80211_nan_conf new_conf; 290 int ret = 0; 291 292 if (sdata->vif.type != NL80211_IFTYPE_NAN) 293 return -EOPNOTSUPP; 294 295 if (!ieee80211_sdata_running(sdata)) 296 return -ENETDOWN; 297 298 new_conf = sdata->u.nan.conf; 299 300 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 301 new_conf.master_pref = conf->master_pref; 302 303 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 304 new_conf.bands = conf->bands; 305 306 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 307 if (!ret) 308 sdata->u.nan.conf = new_conf; 309 310 return ret; 311 } 312 313 static int ieee80211_add_nan_func(struct wiphy *wiphy, 314 struct wireless_dev *wdev, 315 struct cfg80211_nan_func *nan_func) 316 { 317 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 318 int ret; 319 320 if (sdata->vif.type != NL80211_IFTYPE_NAN) 321 return -EOPNOTSUPP; 322 323 if (!ieee80211_sdata_running(sdata)) 324 return -ENETDOWN; 325 326 spin_lock_bh(&sdata->u.nan.func_lock); 327 328 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 329 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 330 GFP_ATOMIC); 331 spin_unlock_bh(&sdata->u.nan.func_lock); 332 333 if (ret < 0) 334 return ret; 335 336 nan_func->instance_id = ret; 337 338 WARN_ON(nan_func->instance_id == 0); 339 340 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 341 if (ret) { 342 spin_lock_bh(&sdata->u.nan.func_lock); 343 idr_remove(&sdata->u.nan.function_inst_ids, 344 nan_func->instance_id); 345 spin_unlock_bh(&sdata->u.nan.func_lock); 346 } 347 348 return ret; 349 } 350 351 static struct cfg80211_nan_func * 352 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 353 u64 cookie) 354 { 355 struct cfg80211_nan_func *func; 356 int id; 357 358 lockdep_assert_held(&sdata->u.nan.func_lock); 359 360 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 361 if (func->cookie == cookie) 362 return func; 363 } 364 365 return NULL; 366 } 367 368 static void ieee80211_del_nan_func(struct wiphy *wiphy, 369 struct wireless_dev *wdev, u64 cookie) 370 { 371 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 372 struct cfg80211_nan_func *func; 373 u8 instance_id = 0; 374 375 if (sdata->vif.type != NL80211_IFTYPE_NAN || 376 !ieee80211_sdata_running(sdata)) 377 return; 378 379 spin_lock_bh(&sdata->u.nan.func_lock); 380 381 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 382 if (func) 383 instance_id = func->instance_id; 384 385 spin_unlock_bh(&sdata->u.nan.func_lock); 386 387 if (instance_id) 388 drv_del_nan_func(sdata->local, sdata, instance_id); 389 } 390 391 static int ieee80211_set_noack_map(struct wiphy *wiphy, 392 struct net_device *dev, 393 u16 noack_map) 394 { 395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 396 397 sdata->noack_map = noack_map; 398 399 ieee80211_check_fast_xmit_iface(sdata); 400 401 return 0; 402 } 403 404 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 405 const u8 *mac_addr, u8 key_idx) 406 { 407 struct ieee80211_local *local = sdata->local; 408 struct ieee80211_key *key; 409 struct sta_info *sta; 410 int ret = -EINVAL; 411 412 if (!wiphy_ext_feature_isset(local->hw.wiphy, 413 NL80211_EXT_FEATURE_EXT_KEY_ID)) 414 return -EINVAL; 415 416 sta = sta_info_get_bss(sdata, mac_addr); 417 418 if (!sta) 419 return -EINVAL; 420 421 if (sta->ptk_idx == key_idx) 422 return 0; 423 424 mutex_lock(&local->key_mtx); 425 key = key_mtx_dereference(local, sta->ptk[key_idx]); 426 427 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 428 ret = ieee80211_set_tx_key(key); 429 430 mutex_unlock(&local->key_mtx); 431 return ret; 432 } 433 434 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 435 u8 key_idx, bool pairwise, const u8 *mac_addr, 436 struct key_params *params) 437 { 438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 439 struct ieee80211_local *local = sdata->local; 440 struct sta_info *sta = NULL; 441 struct ieee80211_key *key; 442 int err; 443 444 if (!ieee80211_sdata_running(sdata)) 445 return -ENETDOWN; 446 447 if (pairwise && params->mode == NL80211_KEY_SET_TX) 448 return ieee80211_set_tx(sdata, mac_addr, key_idx); 449 450 /* reject WEP and TKIP keys if WEP failed to initialize */ 451 switch (params->cipher) { 452 case WLAN_CIPHER_SUITE_WEP40: 453 case WLAN_CIPHER_SUITE_TKIP: 454 case WLAN_CIPHER_SUITE_WEP104: 455 if (WARN_ON_ONCE(fips_enabled)) 456 return -EINVAL; 457 break; 458 default: 459 break; 460 } 461 462 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 463 params->key, params->seq_len, params->seq); 464 if (IS_ERR(key)) 465 return PTR_ERR(key); 466 467 if (pairwise) 468 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 469 470 if (params->mode == NL80211_KEY_NO_TX) 471 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 472 473 mutex_lock(&local->sta_mtx); 474 475 if (mac_addr) { 476 sta = sta_info_get_bss(sdata, mac_addr); 477 /* 478 * The ASSOC test makes sure the driver is ready to 479 * receive the key. When wpa_supplicant has roamed 480 * using FT, it attempts to set the key before 481 * association has completed, this rejects that attempt 482 * so it will set the key again after association. 483 * 484 * TODO: accept the key if we have a station entry and 485 * add it to the device after the station. 486 */ 487 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 488 ieee80211_key_free_unused(key); 489 err = -ENOENT; 490 goto out_unlock; 491 } 492 } 493 494 switch (sdata->vif.type) { 495 case NL80211_IFTYPE_STATION: 496 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 497 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 498 break; 499 case NL80211_IFTYPE_AP: 500 case NL80211_IFTYPE_AP_VLAN: 501 /* Keys without a station are used for TX only */ 502 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 503 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 504 break; 505 case NL80211_IFTYPE_ADHOC: 506 /* no MFP (yet) */ 507 break; 508 case NL80211_IFTYPE_MESH_POINT: 509 #ifdef CONFIG_MAC80211_MESH 510 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 511 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 512 break; 513 #endif 514 case NL80211_IFTYPE_WDS: 515 case NL80211_IFTYPE_MONITOR: 516 case NL80211_IFTYPE_P2P_DEVICE: 517 case NL80211_IFTYPE_NAN: 518 case NL80211_IFTYPE_UNSPECIFIED: 519 case NUM_NL80211_IFTYPES: 520 case NL80211_IFTYPE_P2P_CLIENT: 521 case NL80211_IFTYPE_P2P_GO: 522 case NL80211_IFTYPE_OCB: 523 /* shouldn't happen */ 524 WARN_ON_ONCE(1); 525 break; 526 } 527 528 err = ieee80211_key_link(key, sdata, sta); 529 530 out_unlock: 531 mutex_unlock(&local->sta_mtx); 532 533 return err; 534 } 535 536 static struct ieee80211_key * 537 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, 538 u8 key_idx, bool pairwise, const u8 *mac_addr) 539 { 540 struct ieee80211_local *local = sdata->local; 541 struct sta_info *sta; 542 543 if (mac_addr) { 544 sta = sta_info_get_bss(sdata, mac_addr); 545 if (!sta) 546 return NULL; 547 548 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 549 return rcu_dereference_check_key_mtx(local, 550 sta->ptk[key_idx]); 551 552 if (!pairwise && 553 key_idx < NUM_DEFAULT_KEYS + 554 NUM_DEFAULT_MGMT_KEYS + 555 NUM_DEFAULT_BEACON_KEYS) 556 return rcu_dereference_check_key_mtx(local, 557 sta->deflink.gtk[key_idx]); 558 559 return NULL; 560 } 561 562 if (key_idx < NUM_DEFAULT_KEYS + 563 NUM_DEFAULT_MGMT_KEYS + 564 NUM_DEFAULT_BEACON_KEYS) 565 return rcu_dereference_check_key_mtx(local, 566 sdata->keys[key_idx]); 567 568 return NULL; 569 } 570 571 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 572 u8 key_idx, bool pairwise, const u8 *mac_addr) 573 { 574 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 575 struct ieee80211_local *local = sdata->local; 576 struct ieee80211_key *key; 577 int ret; 578 579 mutex_lock(&local->sta_mtx); 580 mutex_lock(&local->key_mtx); 581 582 key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr); 583 if (!key) { 584 ret = -ENOENT; 585 goto out_unlock; 586 } 587 588 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 589 590 ret = 0; 591 out_unlock: 592 mutex_unlock(&local->key_mtx); 593 mutex_unlock(&local->sta_mtx); 594 595 return ret; 596 } 597 598 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 599 u8 key_idx, bool pairwise, const u8 *mac_addr, 600 void *cookie, 601 void (*callback)(void *cookie, 602 struct key_params *params)) 603 { 604 struct ieee80211_sub_if_data *sdata; 605 u8 seq[6] = {0}; 606 struct key_params params; 607 struct ieee80211_key *key; 608 u64 pn64; 609 u32 iv32; 610 u16 iv16; 611 int err = -ENOENT; 612 struct ieee80211_key_seq kseq = {}; 613 614 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 615 616 rcu_read_lock(); 617 618 key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr); 619 if (!key) 620 goto out; 621 622 memset(¶ms, 0, sizeof(params)); 623 624 params.cipher = key->conf.cipher; 625 626 switch (key->conf.cipher) { 627 case WLAN_CIPHER_SUITE_TKIP: 628 pn64 = atomic64_read(&key->conf.tx_pn); 629 iv32 = TKIP_PN_TO_IV32(pn64); 630 iv16 = TKIP_PN_TO_IV16(pn64); 631 632 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 633 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 634 drv_get_key_seq(sdata->local, key, &kseq); 635 iv32 = kseq.tkip.iv32; 636 iv16 = kseq.tkip.iv16; 637 } 638 639 seq[0] = iv16 & 0xff; 640 seq[1] = (iv16 >> 8) & 0xff; 641 seq[2] = iv32 & 0xff; 642 seq[3] = (iv32 >> 8) & 0xff; 643 seq[4] = (iv32 >> 16) & 0xff; 644 seq[5] = (iv32 >> 24) & 0xff; 645 params.seq = seq; 646 params.seq_len = 6; 647 break; 648 case WLAN_CIPHER_SUITE_CCMP: 649 case WLAN_CIPHER_SUITE_CCMP_256: 650 case WLAN_CIPHER_SUITE_AES_CMAC: 651 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 652 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 653 offsetof(typeof(kseq), aes_cmac)); 654 fallthrough; 655 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 656 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 657 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 658 offsetof(typeof(kseq), aes_gmac)); 659 fallthrough; 660 case WLAN_CIPHER_SUITE_GCMP: 661 case WLAN_CIPHER_SUITE_GCMP_256: 662 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 663 offsetof(typeof(kseq), gcmp)); 664 665 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 666 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 667 drv_get_key_seq(sdata->local, key, &kseq); 668 memcpy(seq, kseq.ccmp.pn, 6); 669 } else { 670 pn64 = atomic64_read(&key->conf.tx_pn); 671 seq[0] = pn64; 672 seq[1] = pn64 >> 8; 673 seq[2] = pn64 >> 16; 674 seq[3] = pn64 >> 24; 675 seq[4] = pn64 >> 32; 676 seq[5] = pn64 >> 40; 677 } 678 params.seq = seq; 679 params.seq_len = 6; 680 break; 681 default: 682 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 683 break; 684 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 685 break; 686 drv_get_key_seq(sdata->local, key, &kseq); 687 params.seq = kseq.hw.seq; 688 params.seq_len = kseq.hw.seq_len; 689 break; 690 } 691 692 params.key = key->conf.key; 693 params.key_len = key->conf.keylen; 694 695 callback(cookie, ¶ms); 696 err = 0; 697 698 out: 699 rcu_read_unlock(); 700 return err; 701 } 702 703 static int ieee80211_config_default_key(struct wiphy *wiphy, 704 struct net_device *dev, 705 u8 key_idx, bool uni, 706 bool multi) 707 { 708 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 709 710 ieee80211_set_default_key(sdata, key_idx, uni, multi); 711 712 return 0; 713 } 714 715 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 716 struct net_device *dev, 717 u8 key_idx) 718 { 719 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 720 721 ieee80211_set_default_mgmt_key(sdata, key_idx); 722 723 return 0; 724 } 725 726 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 727 struct net_device *dev, 728 u8 key_idx) 729 { 730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 731 732 ieee80211_set_default_beacon_key(sdata, key_idx); 733 734 return 0; 735 } 736 737 void sta_set_rate_info_tx(struct sta_info *sta, 738 const struct ieee80211_tx_rate *rate, 739 struct rate_info *rinfo) 740 { 741 rinfo->flags = 0; 742 if (rate->flags & IEEE80211_TX_RC_MCS) { 743 rinfo->flags |= RATE_INFO_FLAGS_MCS; 744 rinfo->mcs = rate->idx; 745 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 746 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 747 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 748 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 749 } else { 750 struct ieee80211_supported_band *sband; 751 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 752 u16 brate; 753 754 sband = ieee80211_get_sband(sta->sdata); 755 WARN_ON_ONCE(sband && !sband->bitrates); 756 if (sband && sband->bitrates) { 757 brate = sband->bitrates[rate->idx].bitrate; 758 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 759 } 760 } 761 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 762 rinfo->bw = RATE_INFO_BW_40; 763 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 764 rinfo->bw = RATE_INFO_BW_80; 765 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 766 rinfo->bw = RATE_INFO_BW_160; 767 else 768 rinfo->bw = RATE_INFO_BW_20; 769 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 770 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 771 } 772 773 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 774 int idx, u8 *mac, struct station_info *sinfo) 775 { 776 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 777 struct ieee80211_local *local = sdata->local; 778 struct sta_info *sta; 779 int ret = -ENOENT; 780 781 mutex_lock(&local->sta_mtx); 782 783 sta = sta_info_get_by_idx(sdata, idx); 784 if (sta) { 785 ret = 0; 786 memcpy(mac, sta->sta.addr, ETH_ALEN); 787 sta_set_sinfo(sta, sinfo, true); 788 } 789 790 mutex_unlock(&local->sta_mtx); 791 792 return ret; 793 } 794 795 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 796 int idx, struct survey_info *survey) 797 { 798 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 799 800 return drv_get_survey(local, idx, survey); 801 } 802 803 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 804 const u8 *mac, struct station_info *sinfo) 805 { 806 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 807 struct ieee80211_local *local = sdata->local; 808 struct sta_info *sta; 809 int ret = -ENOENT; 810 811 mutex_lock(&local->sta_mtx); 812 813 sta = sta_info_get_bss(sdata, mac); 814 if (sta) { 815 ret = 0; 816 sta_set_sinfo(sta, sinfo, true); 817 } 818 819 mutex_unlock(&local->sta_mtx); 820 821 return ret; 822 } 823 824 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 825 struct cfg80211_chan_def *chandef) 826 { 827 struct ieee80211_local *local = wiphy_priv(wiphy); 828 struct ieee80211_sub_if_data *sdata; 829 int ret = 0; 830 831 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 832 return 0; 833 834 mutex_lock(&local->mtx); 835 if (local->use_chanctx) { 836 sdata = wiphy_dereference(local->hw.wiphy, 837 local->monitor_sdata); 838 if (sdata) { 839 ieee80211_vif_release_channel(sdata); 840 ret = ieee80211_vif_use_channel(sdata, chandef, 841 IEEE80211_CHANCTX_EXCLUSIVE); 842 } 843 } else if (local->open_count == local->monitors) { 844 local->_oper_chandef = *chandef; 845 ieee80211_hw_config(local, 0); 846 } 847 848 if (ret == 0) 849 local->monitor_chandef = *chandef; 850 mutex_unlock(&local->mtx); 851 852 return ret; 853 } 854 855 static int 856 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 857 const u8 *resp, size_t resp_len, 858 const struct ieee80211_csa_settings *csa, 859 const struct ieee80211_color_change_settings *cca) 860 { 861 struct probe_resp *new, *old; 862 863 if (!resp || !resp_len) 864 return 1; 865 866 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 867 868 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 869 if (!new) 870 return -ENOMEM; 871 872 new->len = resp_len; 873 memcpy(new->data, resp, resp_len); 874 875 if (csa) 876 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 877 csa->n_counter_offsets_presp * 878 sizeof(new->cntdwn_counter_offsets[0])); 879 else if (cca) 880 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 881 882 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 883 if (old) 884 kfree_rcu(old, rcu_head); 885 886 return 0; 887 } 888 889 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 890 struct cfg80211_fils_discovery *params) 891 { 892 struct fils_discovery_data *new, *old = NULL; 893 struct ieee80211_fils_discovery *fd; 894 895 if (!params->tmpl || !params->tmpl_len) 896 return -EINVAL; 897 898 fd = &sdata->vif.bss_conf.fils_discovery; 899 fd->min_interval = params->min_interval; 900 fd->max_interval = params->max_interval; 901 902 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata); 903 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 904 if (!new) 905 return -ENOMEM; 906 new->len = params->tmpl_len; 907 memcpy(new->data, params->tmpl, params->tmpl_len); 908 rcu_assign_pointer(sdata->u.ap.fils_discovery, new); 909 910 if (old) 911 kfree_rcu(old, rcu_head); 912 913 return 0; 914 } 915 916 static int 917 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 918 struct cfg80211_unsol_bcast_probe_resp *params) 919 { 920 struct unsol_bcast_probe_resp_data *new, *old = NULL; 921 922 if (!params->tmpl || !params->tmpl_len) 923 return -EINVAL; 924 925 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); 926 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 927 if (!new) 928 return -ENOMEM; 929 new->len = params->tmpl_len; 930 memcpy(new->data, params->tmpl, params->tmpl_len); 931 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); 932 933 if (old) 934 kfree_rcu(old, rcu_head); 935 936 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = 937 params->interval; 938 939 return 0; 940 } 941 942 static int ieee80211_set_ftm_responder_params( 943 struct ieee80211_sub_if_data *sdata, 944 const u8 *lci, size_t lci_len, 945 const u8 *civicloc, size_t civicloc_len) 946 { 947 struct ieee80211_ftm_responder_params *new, *old; 948 struct ieee80211_bss_conf *bss_conf; 949 u8 *pos; 950 int len; 951 952 if (!lci_len && !civicloc_len) 953 return 0; 954 955 bss_conf = &sdata->vif.bss_conf; 956 old = bss_conf->ftmr_params; 957 len = lci_len + civicloc_len; 958 959 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 960 if (!new) 961 return -ENOMEM; 962 963 pos = (u8 *)(new + 1); 964 if (lci_len) { 965 new->lci_len = lci_len; 966 new->lci = pos; 967 memcpy(pos, lci, lci_len); 968 pos += lci_len; 969 } 970 971 if (civicloc_len) { 972 new->civicloc_len = civicloc_len; 973 new->civicloc = pos; 974 memcpy(pos, civicloc, civicloc_len); 975 pos += civicloc_len; 976 } 977 978 bss_conf->ftmr_params = new; 979 kfree(old); 980 981 return 0; 982 } 983 984 static int 985 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 986 struct cfg80211_mbssid_elems *src) 987 { 988 int i, offset = 0; 989 990 for (i = 0; i < src->cnt; i++) { 991 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 992 dst->elem[i].len = src->elem[i].len; 993 dst->elem[i].data = pos + offset; 994 offset += dst->elem[i].len; 995 } 996 dst->cnt = src->cnt; 997 998 return offset; 999 } 1000 1001 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1002 struct cfg80211_beacon_data *params, 1003 const struct ieee80211_csa_settings *csa, 1004 const struct ieee80211_color_change_settings *cca) 1005 { 1006 struct cfg80211_mbssid_elems *mbssid = NULL; 1007 struct beacon_data *new, *old; 1008 int new_head_len, new_tail_len; 1009 int size, err; 1010 u32 changed = BSS_CHANGED_BEACON; 1011 1012 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1013 1014 1015 /* Need to have a beacon head if we don't have one yet */ 1016 if (!params->head && !old) 1017 return -EINVAL; 1018 1019 /* new or old head? */ 1020 if (params->head) 1021 new_head_len = params->head_len; 1022 else 1023 new_head_len = old->head_len; 1024 1025 /* new or old tail? */ 1026 if (params->tail || !old) 1027 /* params->tail_len will be zero for !params->tail */ 1028 new_tail_len = params->tail_len; 1029 else 1030 new_tail_len = old->tail_len; 1031 1032 size = sizeof(*new) + new_head_len + new_tail_len; 1033 1034 /* new or old multiple BSSID elements? */ 1035 if (params->mbssid_ies) { 1036 mbssid = params->mbssid_ies; 1037 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1038 size += ieee80211_get_mbssid_beacon_len(mbssid); 1039 } else if (old && old->mbssid_ies) { 1040 mbssid = old->mbssid_ies; 1041 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1042 size += ieee80211_get_mbssid_beacon_len(mbssid); 1043 } 1044 1045 new = kzalloc(size, GFP_KERNEL); 1046 if (!new) 1047 return -ENOMEM; 1048 1049 /* start filling the new info now */ 1050 1051 /* 1052 * pointers go into the block we allocated, 1053 * memory is | beacon_data | head | tail | mbssid_ies 1054 */ 1055 new->head = ((u8 *) new) + sizeof(*new); 1056 new->tail = new->head + new_head_len; 1057 new->head_len = new_head_len; 1058 new->tail_len = new_tail_len; 1059 /* copy in optional mbssid_ies */ 1060 if (mbssid) { 1061 u8 *pos = new->tail + new->tail_len; 1062 1063 new->mbssid_ies = (void *)pos; 1064 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1065 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1066 /* update bssid_indicator */ 1067 sdata->vif.bss_conf.bssid_indicator = 1068 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1069 } 1070 1071 if (csa) { 1072 new->cntdwn_current_counter = csa->count; 1073 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1074 csa->n_counter_offsets_beacon * 1075 sizeof(new->cntdwn_counter_offsets[0])); 1076 } else if (cca) { 1077 new->cntdwn_current_counter = cca->count; 1078 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1079 } 1080 1081 /* copy in head */ 1082 if (params->head) 1083 memcpy(new->head, params->head, new_head_len); 1084 else 1085 memcpy(new->head, old->head, new_head_len); 1086 1087 /* copy in optional tail */ 1088 if (params->tail) 1089 memcpy(new->tail, params->tail, new_tail_len); 1090 else 1091 if (old) 1092 memcpy(new->tail, old->tail, new_tail_len); 1093 1094 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1095 params->probe_resp_len, csa, cca); 1096 if (err < 0) { 1097 kfree(new); 1098 return err; 1099 } 1100 if (err == 0) 1101 changed |= BSS_CHANGED_AP_PROBE_RESP; 1102 1103 if (params->ftm_responder != -1) { 1104 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 1105 err = ieee80211_set_ftm_responder_params(sdata, 1106 params->lci, 1107 params->lci_len, 1108 params->civicloc, 1109 params->civicloc_len); 1110 1111 if (err < 0) { 1112 kfree(new); 1113 return err; 1114 } 1115 1116 changed |= BSS_CHANGED_FTM_RESPONDER; 1117 } 1118 1119 rcu_assign_pointer(sdata->u.ap.beacon, new); 1120 1121 if (old) 1122 kfree_rcu(old, rcu_head); 1123 1124 return changed; 1125 } 1126 1127 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1128 struct cfg80211_ap_settings *params) 1129 { 1130 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1131 struct ieee80211_local *local = sdata->local; 1132 struct beacon_data *old; 1133 struct ieee80211_sub_if_data *vlan; 1134 u32 changed = BSS_CHANGED_BEACON_INT | 1135 BSS_CHANGED_BEACON_ENABLED | 1136 BSS_CHANGED_BEACON | 1137 BSS_CHANGED_SSID | 1138 BSS_CHANGED_P2P_PS | 1139 BSS_CHANGED_TXPOWER | 1140 BSS_CHANGED_TWT; 1141 int i, err; 1142 int prev_beacon_int; 1143 1144 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1145 if (old) 1146 return -EALREADY; 1147 1148 if (params->smps_mode != NL80211_SMPS_OFF) 1149 return -ENOTSUPP; 1150 1151 sdata->smps_mode = IEEE80211_SMPS_OFF; 1152 1153 sdata->needed_rx_chains = sdata->local->rx_chains; 1154 1155 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1156 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1157 1158 if (params->he_cap && params->he_oper) { 1159 sdata->vif.bss_conf.he_support = true; 1160 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1161 le32_get_bits(params->he_oper->he_oper_params, 1162 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1163 sdata->vif.bss_conf.frame_time_rts_th = 1164 le32_get_bits(params->he_oper->he_oper_params, 1165 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1166 changed |= BSS_CHANGED_HE_OBSS_PD; 1167 1168 if (params->beacon.he_bss_color.enabled) 1169 changed |= BSS_CHANGED_HE_BSS_COLOR; 1170 } 1171 1172 if (sdata->vif.type == NL80211_IFTYPE_AP && 1173 params->mbssid_config.tx_wdev) { 1174 err = ieee80211_set_ap_mbssid_options(sdata, 1175 params->mbssid_config); 1176 if (err) 1177 return err; 1178 } 1179 1180 mutex_lock(&local->mtx); 1181 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1182 IEEE80211_CHANCTX_SHARED); 1183 if (!err) 1184 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1185 mutex_unlock(&local->mtx); 1186 if (err) { 1187 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1188 return err; 1189 } 1190 1191 /* 1192 * Apply control port protocol, this allows us to 1193 * not encrypt dynamic WEP control frames. 1194 */ 1195 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1196 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1197 sdata->control_port_over_nl80211 = 1198 params->crypto.control_port_over_nl80211; 1199 sdata->control_port_no_preauth = 1200 params->crypto.control_port_no_preauth; 1201 1202 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1203 vlan->control_port_protocol = 1204 params->crypto.control_port_ethertype; 1205 vlan->control_port_no_encrypt = 1206 params->crypto.control_port_no_encrypt; 1207 vlan->control_port_over_nl80211 = 1208 params->crypto.control_port_over_nl80211; 1209 vlan->control_port_no_preauth = 1210 params->crypto.control_port_no_preauth; 1211 } 1212 1213 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1214 sdata->vif.bss_conf.enable_beacon = true; 1215 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1216 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1217 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd; 1218 sdata->vif.bss_conf.he_bss_color = params->beacon.he_bss_color; 1219 sdata->vif.bss_conf.s1g = params->chandef.chan->band == 1220 NL80211_BAND_S1GHZ; 1221 1222 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1223 if (params->ssid_len) 1224 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1225 params->ssid_len); 1226 sdata->vif.bss_conf.hidden_ssid = 1227 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1228 1229 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1230 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1231 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1232 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1233 if (params->p2p_opp_ps) 1234 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1235 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1236 1237 sdata->beacon_rate_set = false; 1238 if (wiphy_ext_feature_isset(local->hw.wiphy, 1239 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1240 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1241 sdata->beacon_rateidx_mask[i] = 1242 params->beacon_rate.control[i].legacy; 1243 if (sdata->beacon_rateidx_mask[i]) 1244 sdata->beacon_rate_set = true; 1245 } 1246 } 1247 1248 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1249 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate; 1250 1251 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL); 1252 if (err < 0) 1253 goto error; 1254 changed |= err; 1255 1256 if (params->fils_discovery.max_interval) { 1257 err = ieee80211_set_fils_discovery(sdata, 1258 ¶ms->fils_discovery); 1259 if (err < 0) 1260 goto error; 1261 changed |= BSS_CHANGED_FILS_DISCOVERY; 1262 } 1263 1264 if (params->unsol_bcast_probe_resp.interval) { 1265 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1266 ¶ms->unsol_bcast_probe_resp); 1267 if (err < 0) 1268 goto error; 1269 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1270 } 1271 1272 err = drv_start_ap(sdata->local, sdata); 1273 if (err) { 1274 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1275 1276 if (old) 1277 kfree_rcu(old, rcu_head); 1278 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1279 goto error; 1280 } 1281 1282 ieee80211_recalc_dtim(local, sdata); 1283 ieee80211_bss_info_change_notify(sdata, changed); 1284 1285 netif_carrier_on(dev); 1286 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1287 netif_carrier_on(vlan->dev); 1288 1289 return 0; 1290 1291 error: 1292 mutex_lock(&local->mtx); 1293 ieee80211_vif_release_channel(sdata); 1294 mutex_unlock(&local->mtx); 1295 1296 return err; 1297 } 1298 1299 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1300 struct cfg80211_beacon_data *params) 1301 { 1302 struct ieee80211_sub_if_data *sdata; 1303 struct ieee80211_bss_conf *bss_conf; 1304 struct beacon_data *old; 1305 int err; 1306 1307 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1308 sdata_assert_lock(sdata); 1309 1310 /* don't allow changing the beacon while a countdown is in place - offset 1311 * of channel switch counter may change 1312 */ 1313 if (sdata->vif.csa_active || sdata->vif.color_change_active) 1314 return -EBUSY; 1315 1316 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1317 if (!old) 1318 return -ENOENT; 1319 1320 err = ieee80211_assign_beacon(sdata, params, NULL, NULL); 1321 if (err < 0) 1322 return err; 1323 1324 bss_conf = &sdata->vif.bss_conf; 1325 if (params->he_bss_color_valid && 1326 params->he_bss_color.enabled != bss_conf->he_bss_color.enabled) { 1327 bss_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1328 err |= BSS_CHANGED_HE_BSS_COLOR; 1329 } 1330 1331 ieee80211_bss_info_change_notify(sdata, err); 1332 return 0; 1333 } 1334 1335 static void ieee80211_free_next_beacon(struct ieee80211_sub_if_data *sdata) 1336 { 1337 if (!sdata->u.ap.next_beacon) 1338 return; 1339 1340 kfree(sdata->u.ap.next_beacon->mbssid_ies); 1341 kfree(sdata->u.ap.next_beacon); 1342 sdata->u.ap.next_beacon = NULL; 1343 } 1344 1345 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1346 { 1347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1348 struct ieee80211_sub_if_data *vlan; 1349 struct ieee80211_local *local = sdata->local; 1350 struct beacon_data *old_beacon; 1351 struct probe_resp *old_probe_resp; 1352 struct fils_discovery_data *old_fils_discovery; 1353 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1354 struct cfg80211_chan_def chandef; 1355 1356 sdata_assert_lock(sdata); 1357 1358 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1359 if (!old_beacon) 1360 return -ENOENT; 1361 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1362 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, 1363 sdata); 1364 old_unsol_bcast_probe_resp = 1365 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, 1366 sdata); 1367 1368 /* abort any running channel switch */ 1369 mutex_lock(&local->mtx); 1370 sdata->vif.csa_active = false; 1371 if (sdata->csa_block_tx) { 1372 ieee80211_wake_vif_queues(local, sdata, 1373 IEEE80211_QUEUE_STOP_REASON_CSA); 1374 sdata->csa_block_tx = false; 1375 } 1376 1377 mutex_unlock(&local->mtx); 1378 1379 ieee80211_free_next_beacon(sdata); 1380 1381 /* turn off carrier for this interface and dependent VLANs */ 1382 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1383 netif_carrier_off(vlan->dev); 1384 netif_carrier_off(dev); 1385 1386 /* remove beacon and probe response */ 1387 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1388 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1389 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); 1390 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); 1391 kfree_rcu(old_beacon, rcu_head); 1392 if (old_probe_resp) 1393 kfree_rcu(old_probe_resp, rcu_head); 1394 if (old_fils_discovery) 1395 kfree_rcu(old_fils_discovery, rcu_head); 1396 if (old_unsol_bcast_probe_resp) 1397 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1398 1399 kfree(sdata->vif.bss_conf.ftmr_params); 1400 sdata->vif.bss_conf.ftmr_params = NULL; 1401 1402 __sta_info_flush(sdata, true); 1403 ieee80211_free_keys(sdata, true); 1404 1405 sdata->vif.bss_conf.enable_beacon = false; 1406 sdata->beacon_rate_set = false; 1407 sdata->vif.bss_conf.ssid_len = 0; 1408 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1409 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1410 1411 if (sdata->wdev.cac_started) { 1412 chandef = sdata->vif.bss_conf.chandef; 1413 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1414 cfg80211_cac_event(sdata->dev, &chandef, 1415 NL80211_RADAR_CAC_ABORTED, 1416 GFP_KERNEL); 1417 } 1418 1419 drv_stop_ap(sdata->local, sdata); 1420 1421 /* free all potentially still buffered bcast frames */ 1422 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1423 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1424 1425 mutex_lock(&local->mtx); 1426 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1427 ieee80211_vif_release_channel(sdata); 1428 mutex_unlock(&local->mtx); 1429 1430 return 0; 1431 } 1432 1433 static int sta_apply_auth_flags(struct ieee80211_local *local, 1434 struct sta_info *sta, 1435 u32 mask, u32 set) 1436 { 1437 int ret; 1438 1439 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1440 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1441 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1442 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1443 if (ret) 1444 return ret; 1445 } 1446 1447 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1448 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1449 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1450 /* 1451 * When peer becomes associated, init rate control as 1452 * well. Some drivers require rate control initialized 1453 * before drv_sta_state() is called. 1454 */ 1455 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1456 rate_control_rate_init(sta); 1457 1458 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1459 if (ret) 1460 return ret; 1461 } 1462 1463 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1464 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1465 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1466 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1467 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1468 else 1469 ret = 0; 1470 if (ret) 1471 return ret; 1472 } 1473 1474 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1475 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1476 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1477 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1478 if (ret) 1479 return ret; 1480 } 1481 1482 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1483 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1484 test_sta_flag(sta, WLAN_STA_AUTH)) { 1485 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1486 if (ret) 1487 return ret; 1488 } 1489 1490 return 0; 1491 } 1492 1493 static void sta_apply_mesh_params(struct ieee80211_local *local, 1494 struct sta_info *sta, 1495 struct station_parameters *params) 1496 { 1497 #ifdef CONFIG_MAC80211_MESH 1498 struct ieee80211_sub_if_data *sdata = sta->sdata; 1499 u32 changed = 0; 1500 1501 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1502 switch (params->plink_state) { 1503 case NL80211_PLINK_ESTAB: 1504 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1505 changed = mesh_plink_inc_estab_count(sdata); 1506 sta->mesh->plink_state = params->plink_state; 1507 sta->mesh->aid = params->peer_aid; 1508 1509 ieee80211_mps_sta_status_update(sta); 1510 changed |= ieee80211_mps_set_sta_local_pm(sta, 1511 sdata->u.mesh.mshcfg.power_mode); 1512 1513 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1514 /* init at low value */ 1515 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1516 1517 break; 1518 case NL80211_PLINK_LISTEN: 1519 case NL80211_PLINK_BLOCKED: 1520 case NL80211_PLINK_OPN_SNT: 1521 case NL80211_PLINK_OPN_RCVD: 1522 case NL80211_PLINK_CNF_RCVD: 1523 case NL80211_PLINK_HOLDING: 1524 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1525 changed = mesh_plink_dec_estab_count(sdata); 1526 sta->mesh->plink_state = params->plink_state; 1527 1528 ieee80211_mps_sta_status_update(sta); 1529 changed |= ieee80211_mps_set_sta_local_pm(sta, 1530 NL80211_MESH_POWER_UNKNOWN); 1531 break; 1532 default: 1533 /* nothing */ 1534 break; 1535 } 1536 } 1537 1538 switch (params->plink_action) { 1539 case NL80211_PLINK_ACTION_NO_ACTION: 1540 /* nothing */ 1541 break; 1542 case NL80211_PLINK_ACTION_OPEN: 1543 changed |= mesh_plink_open(sta); 1544 break; 1545 case NL80211_PLINK_ACTION_BLOCK: 1546 changed |= mesh_plink_block(sta); 1547 break; 1548 } 1549 1550 if (params->local_pm) 1551 changed |= ieee80211_mps_set_sta_local_pm(sta, 1552 params->local_pm); 1553 1554 ieee80211_mbss_info_change_notify(sdata, changed); 1555 #endif 1556 } 1557 1558 static void sta_apply_airtime_params(struct ieee80211_local *local, 1559 struct sta_info *sta, 1560 struct station_parameters *params) 1561 { 1562 u8 ac; 1563 1564 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1565 struct airtime_sched_info *air_sched = &local->airtime[ac]; 1566 struct airtime_info *air_info = &sta->airtime[ac]; 1567 struct txq_info *txqi; 1568 u8 tid; 1569 1570 spin_lock_bh(&air_sched->lock); 1571 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { 1572 if (air_info->weight == params->airtime_weight || 1573 !sta->sta.txq[tid] || 1574 ac != ieee80211_ac_from_tid(tid)) 1575 continue; 1576 1577 airtime_weight_set(air_info, params->airtime_weight); 1578 1579 txqi = to_txq_info(sta->sta.txq[tid]); 1580 if (RB_EMPTY_NODE(&txqi->schedule_order)) 1581 continue; 1582 1583 ieee80211_update_airtime_weight(local, air_sched, 1584 0, true); 1585 } 1586 spin_unlock_bh(&air_sched->lock); 1587 } 1588 } 1589 1590 static int sta_apply_parameters(struct ieee80211_local *local, 1591 struct sta_info *sta, 1592 struct station_parameters *params) 1593 { 1594 int ret = 0; 1595 struct ieee80211_supported_band *sband; 1596 struct ieee80211_sub_if_data *sdata = sta->sdata; 1597 u32 mask, set; 1598 1599 sband = ieee80211_get_sband(sdata); 1600 if (!sband) 1601 return -EINVAL; 1602 1603 mask = params->sta_flags_mask; 1604 set = params->sta_flags_set; 1605 1606 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1607 /* 1608 * In mesh mode, ASSOCIATED isn't part of the nl80211 1609 * API but must follow AUTHENTICATED for driver state. 1610 */ 1611 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1612 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1613 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1614 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1615 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1616 /* 1617 * TDLS -- everything follows authorized, but 1618 * only becoming authorized is possible, not 1619 * going back 1620 */ 1621 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1622 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1623 BIT(NL80211_STA_FLAG_ASSOCIATED); 1624 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1625 BIT(NL80211_STA_FLAG_ASSOCIATED); 1626 } 1627 } 1628 1629 if (mask & BIT(NL80211_STA_FLAG_WME) && 1630 local->hw.queues >= IEEE80211_NUM_ACS) 1631 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1632 1633 /* auth flags will be set later for TDLS, 1634 * and for unassociated stations that move to associated */ 1635 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1636 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1637 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1638 ret = sta_apply_auth_flags(local, sta, mask, set); 1639 if (ret) 1640 return ret; 1641 } 1642 1643 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1644 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1645 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1646 else 1647 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1648 } 1649 1650 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1651 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1652 if (set & BIT(NL80211_STA_FLAG_MFP)) 1653 set_sta_flag(sta, WLAN_STA_MFP); 1654 else 1655 clear_sta_flag(sta, WLAN_STA_MFP); 1656 } 1657 1658 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1659 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1660 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1661 else 1662 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1663 } 1664 1665 /* mark TDLS channel switch support, if the AP allows it */ 1666 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1667 !sdata->u.mgd.tdls_chan_switch_prohibited && 1668 params->ext_capab_len >= 4 && 1669 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1670 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1671 1672 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1673 !sdata->u.mgd.tdls_wider_bw_prohibited && 1674 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1675 params->ext_capab_len >= 8 && 1676 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1677 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1678 1679 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1680 sta->sta.uapsd_queues = params->uapsd_queues; 1681 sta->sta.max_sp = params->max_sp; 1682 } 1683 1684 /* The sender might not have sent the last bit, consider it to be 0 */ 1685 if (params->ext_capab_len >= 8) { 1686 u8 val = (params->ext_capab[7] & 1687 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1688 1689 /* we did get all the bits, take the MSB as well */ 1690 if (params->ext_capab_len >= 9) { 1691 u8 val_msb = params->ext_capab[8] & 1692 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1693 val_msb <<= 1; 1694 val |= val_msb; 1695 } 1696 1697 switch (val) { 1698 case 1: 1699 sta->sta.max_amsdu_subframes = 32; 1700 break; 1701 case 2: 1702 sta->sta.max_amsdu_subframes = 16; 1703 break; 1704 case 3: 1705 sta->sta.max_amsdu_subframes = 8; 1706 break; 1707 default: 1708 sta->sta.max_amsdu_subframes = 0; 1709 } 1710 } 1711 1712 /* 1713 * cfg80211 validates this (1-2007) and allows setting the AID 1714 * only when creating a new station entry 1715 */ 1716 if (params->aid) 1717 sta->sta.aid = params->aid; 1718 1719 /* 1720 * Some of the following updates would be racy if called on an 1721 * existing station, via ieee80211_change_station(). However, 1722 * all such changes are rejected by cfg80211 except for updates 1723 * changing the supported rates on an existing but not yet used 1724 * TDLS peer. 1725 */ 1726 1727 if (params->listen_interval >= 0) 1728 sta->listen_interval = params->listen_interval; 1729 1730 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1731 sta->sta.deflink.txpwr.type = params->txpwr.type; 1732 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1733 sta->sta.deflink.txpwr.power = params->txpwr.power; 1734 ret = drv_sta_set_txpwr(local, sdata, sta); 1735 if (ret) 1736 return ret; 1737 } 1738 1739 if (params->supported_rates && params->supported_rates_len) { 1740 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1741 sband, params->supported_rates, 1742 params->supported_rates_len, 1743 &sta->sta.deflink.supp_rates[sband->band]); 1744 } 1745 1746 if (params->ht_capa) 1747 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1748 params->ht_capa, sta); 1749 1750 /* VHT can override some HT caps such as the A-MSDU max length */ 1751 if (params->vht_capa) 1752 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1753 params->vht_capa, sta); 1754 1755 if (params->he_capa) 1756 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1757 (void *)params->he_capa, 1758 params->he_capa_len, 1759 (void *)params->he_6ghz_capa, 1760 sta); 1761 1762 if (params->eht_capa) 1763 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1764 (u8 *)params->he_capa, 1765 params->he_capa_len, 1766 params->eht_capa, 1767 params->eht_capa_len, 1768 sta); 1769 1770 if (params->opmode_notif_used) { 1771 /* returned value is only needed for rc update, but the 1772 * rc isn't initialized here yet, so ignore it 1773 */ 1774 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1775 sband->band); 1776 } 1777 1778 if (params->support_p2p_ps >= 0) 1779 sta->sta.support_p2p_ps = params->support_p2p_ps; 1780 1781 if (ieee80211_vif_is_mesh(&sdata->vif)) 1782 sta_apply_mesh_params(local, sta, params); 1783 1784 if (params->airtime_weight) 1785 sta_apply_airtime_params(local, sta, params); 1786 1787 1788 /* set the STA state after all sta info from usermode has been set */ 1789 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1790 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1791 ret = sta_apply_auth_flags(local, sta, mask, set); 1792 if (ret) 1793 return ret; 1794 } 1795 1796 return 0; 1797 } 1798 1799 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1800 const u8 *mac, 1801 struct station_parameters *params) 1802 { 1803 struct ieee80211_local *local = wiphy_priv(wiphy); 1804 struct sta_info *sta; 1805 struct ieee80211_sub_if_data *sdata; 1806 int err; 1807 1808 if (params->vlan) { 1809 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1810 1811 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1812 sdata->vif.type != NL80211_IFTYPE_AP) 1813 return -EINVAL; 1814 } else 1815 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1816 1817 if (ether_addr_equal(mac, sdata->vif.addr)) 1818 return -EINVAL; 1819 1820 if (!is_valid_ether_addr(mac)) 1821 return -EINVAL; 1822 1823 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1824 sdata->vif.type == NL80211_IFTYPE_STATION && 1825 !sdata->u.mgd.associated) 1826 return -EINVAL; 1827 1828 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1829 if (!sta) 1830 return -ENOMEM; 1831 1832 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1833 sta->sta.tdls = true; 1834 1835 err = sta_apply_parameters(local, sta, params); 1836 if (err) { 1837 sta_info_free(local, sta); 1838 return err; 1839 } 1840 1841 /* 1842 * for TDLS and for unassociated station, rate control should be 1843 * initialized only when rates are known and station is marked 1844 * authorized/associated 1845 */ 1846 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1847 test_sta_flag(sta, WLAN_STA_ASSOC)) 1848 rate_control_rate_init(sta); 1849 1850 return sta_info_insert(sta); 1851 } 1852 1853 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1854 struct station_del_parameters *params) 1855 { 1856 struct ieee80211_sub_if_data *sdata; 1857 1858 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1859 1860 if (params->mac) 1861 return sta_info_destroy_addr_bss(sdata, params->mac); 1862 1863 sta_info_flush(sdata); 1864 return 0; 1865 } 1866 1867 static int ieee80211_change_station(struct wiphy *wiphy, 1868 struct net_device *dev, const u8 *mac, 1869 struct station_parameters *params) 1870 { 1871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1872 struct ieee80211_local *local = wiphy_priv(wiphy); 1873 struct sta_info *sta; 1874 struct ieee80211_sub_if_data *vlansdata; 1875 enum cfg80211_station_type statype; 1876 int err; 1877 1878 mutex_lock(&local->sta_mtx); 1879 1880 sta = sta_info_get_bss(sdata, mac); 1881 if (!sta) { 1882 err = -ENOENT; 1883 goto out_err; 1884 } 1885 1886 switch (sdata->vif.type) { 1887 case NL80211_IFTYPE_MESH_POINT: 1888 if (sdata->u.mesh.user_mpm) 1889 statype = CFG80211_STA_MESH_PEER_USER; 1890 else 1891 statype = CFG80211_STA_MESH_PEER_KERNEL; 1892 break; 1893 case NL80211_IFTYPE_ADHOC: 1894 statype = CFG80211_STA_IBSS; 1895 break; 1896 case NL80211_IFTYPE_STATION: 1897 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1898 statype = CFG80211_STA_AP_STA; 1899 break; 1900 } 1901 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1902 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1903 else 1904 statype = CFG80211_STA_TDLS_PEER_SETUP; 1905 break; 1906 case NL80211_IFTYPE_AP: 1907 case NL80211_IFTYPE_AP_VLAN: 1908 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1909 statype = CFG80211_STA_AP_CLIENT; 1910 else 1911 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1912 break; 1913 default: 1914 err = -EOPNOTSUPP; 1915 goto out_err; 1916 } 1917 1918 err = cfg80211_check_station_change(wiphy, params, statype); 1919 if (err) 1920 goto out_err; 1921 1922 if (params->vlan && params->vlan != sta->sdata->dev) { 1923 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1924 1925 if (params->vlan->ieee80211_ptr->use_4addr) { 1926 if (vlansdata->u.vlan.sta) { 1927 err = -EBUSY; 1928 goto out_err; 1929 } 1930 1931 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1932 __ieee80211_check_fast_rx_iface(vlansdata); 1933 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1934 } 1935 1936 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1937 sta->sdata->u.vlan.sta) { 1938 ieee80211_clear_fast_rx(sta); 1939 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1940 } 1941 1942 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1943 ieee80211_vif_dec_num_mcast(sta->sdata); 1944 1945 sta->sdata = vlansdata; 1946 ieee80211_check_fast_xmit(sta); 1947 1948 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1949 ieee80211_vif_inc_num_mcast(sta->sdata); 1950 cfg80211_send_layer2_update(sta->sdata->dev, 1951 sta->sta.addr); 1952 } 1953 } 1954 1955 err = sta_apply_parameters(local, sta, params); 1956 if (err) 1957 goto out_err; 1958 1959 mutex_unlock(&local->sta_mtx); 1960 1961 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1962 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1963 ieee80211_recalc_ps(local); 1964 ieee80211_recalc_ps_vif(sdata); 1965 } 1966 1967 return 0; 1968 out_err: 1969 mutex_unlock(&local->sta_mtx); 1970 return err; 1971 } 1972 1973 #ifdef CONFIG_MAC80211_MESH 1974 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1975 const u8 *dst, const u8 *next_hop) 1976 { 1977 struct ieee80211_sub_if_data *sdata; 1978 struct mesh_path *mpath; 1979 struct sta_info *sta; 1980 1981 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1982 1983 rcu_read_lock(); 1984 sta = sta_info_get(sdata, next_hop); 1985 if (!sta) { 1986 rcu_read_unlock(); 1987 return -ENOENT; 1988 } 1989 1990 mpath = mesh_path_add(sdata, dst); 1991 if (IS_ERR(mpath)) { 1992 rcu_read_unlock(); 1993 return PTR_ERR(mpath); 1994 } 1995 1996 mesh_path_fix_nexthop(mpath, sta); 1997 1998 rcu_read_unlock(); 1999 return 0; 2000 } 2001 2002 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2003 const u8 *dst) 2004 { 2005 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2006 2007 if (dst) 2008 return mesh_path_del(sdata, dst); 2009 2010 mesh_path_flush_by_iface(sdata); 2011 return 0; 2012 } 2013 2014 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2015 const u8 *dst, const u8 *next_hop) 2016 { 2017 struct ieee80211_sub_if_data *sdata; 2018 struct mesh_path *mpath; 2019 struct sta_info *sta; 2020 2021 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2022 2023 rcu_read_lock(); 2024 2025 sta = sta_info_get(sdata, next_hop); 2026 if (!sta) { 2027 rcu_read_unlock(); 2028 return -ENOENT; 2029 } 2030 2031 mpath = mesh_path_lookup(sdata, dst); 2032 if (!mpath) { 2033 rcu_read_unlock(); 2034 return -ENOENT; 2035 } 2036 2037 mesh_path_fix_nexthop(mpath, sta); 2038 2039 rcu_read_unlock(); 2040 return 0; 2041 } 2042 2043 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2044 struct mpath_info *pinfo) 2045 { 2046 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2047 2048 if (next_hop_sta) 2049 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2050 else 2051 eth_zero_addr(next_hop); 2052 2053 memset(pinfo, 0, sizeof(*pinfo)); 2054 2055 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2056 2057 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2058 MPATH_INFO_SN | 2059 MPATH_INFO_METRIC | 2060 MPATH_INFO_EXPTIME | 2061 MPATH_INFO_DISCOVERY_TIMEOUT | 2062 MPATH_INFO_DISCOVERY_RETRIES | 2063 MPATH_INFO_FLAGS | 2064 MPATH_INFO_HOP_COUNT | 2065 MPATH_INFO_PATH_CHANGE; 2066 2067 pinfo->frame_qlen = mpath->frame_queue.qlen; 2068 pinfo->sn = mpath->sn; 2069 pinfo->metric = mpath->metric; 2070 if (time_before(jiffies, mpath->exp_time)) 2071 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2072 pinfo->discovery_timeout = 2073 jiffies_to_msecs(mpath->discovery_timeout); 2074 pinfo->discovery_retries = mpath->discovery_retries; 2075 if (mpath->flags & MESH_PATH_ACTIVE) 2076 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2077 if (mpath->flags & MESH_PATH_RESOLVING) 2078 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2079 if (mpath->flags & MESH_PATH_SN_VALID) 2080 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2081 if (mpath->flags & MESH_PATH_FIXED) 2082 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2083 if (mpath->flags & MESH_PATH_RESOLVED) 2084 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2085 pinfo->hop_count = mpath->hop_count; 2086 pinfo->path_change_count = mpath->path_change_count; 2087 } 2088 2089 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2090 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2091 2092 { 2093 struct ieee80211_sub_if_data *sdata; 2094 struct mesh_path *mpath; 2095 2096 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2097 2098 rcu_read_lock(); 2099 mpath = mesh_path_lookup(sdata, dst); 2100 if (!mpath) { 2101 rcu_read_unlock(); 2102 return -ENOENT; 2103 } 2104 memcpy(dst, mpath->dst, ETH_ALEN); 2105 mpath_set_pinfo(mpath, next_hop, pinfo); 2106 rcu_read_unlock(); 2107 return 0; 2108 } 2109 2110 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2111 int idx, u8 *dst, u8 *next_hop, 2112 struct mpath_info *pinfo) 2113 { 2114 struct ieee80211_sub_if_data *sdata; 2115 struct mesh_path *mpath; 2116 2117 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2118 2119 rcu_read_lock(); 2120 mpath = mesh_path_lookup_by_idx(sdata, idx); 2121 if (!mpath) { 2122 rcu_read_unlock(); 2123 return -ENOENT; 2124 } 2125 memcpy(dst, mpath->dst, ETH_ALEN); 2126 mpath_set_pinfo(mpath, next_hop, pinfo); 2127 rcu_read_unlock(); 2128 return 0; 2129 } 2130 2131 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2132 struct mpath_info *pinfo) 2133 { 2134 memset(pinfo, 0, sizeof(*pinfo)); 2135 memcpy(mpp, mpath->mpp, ETH_ALEN); 2136 2137 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2138 } 2139 2140 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2141 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2142 2143 { 2144 struct ieee80211_sub_if_data *sdata; 2145 struct mesh_path *mpath; 2146 2147 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2148 2149 rcu_read_lock(); 2150 mpath = mpp_path_lookup(sdata, dst); 2151 if (!mpath) { 2152 rcu_read_unlock(); 2153 return -ENOENT; 2154 } 2155 memcpy(dst, mpath->dst, ETH_ALEN); 2156 mpp_set_pinfo(mpath, mpp, pinfo); 2157 rcu_read_unlock(); 2158 return 0; 2159 } 2160 2161 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2162 int idx, u8 *dst, u8 *mpp, 2163 struct mpath_info *pinfo) 2164 { 2165 struct ieee80211_sub_if_data *sdata; 2166 struct mesh_path *mpath; 2167 2168 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2169 2170 rcu_read_lock(); 2171 mpath = mpp_path_lookup_by_idx(sdata, idx); 2172 if (!mpath) { 2173 rcu_read_unlock(); 2174 return -ENOENT; 2175 } 2176 memcpy(dst, mpath->dst, ETH_ALEN); 2177 mpp_set_pinfo(mpath, mpp, pinfo); 2178 rcu_read_unlock(); 2179 return 0; 2180 } 2181 2182 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2183 struct net_device *dev, 2184 struct mesh_config *conf) 2185 { 2186 struct ieee80211_sub_if_data *sdata; 2187 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2188 2189 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2190 return 0; 2191 } 2192 2193 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2194 { 2195 return (mask >> (parm-1)) & 0x1; 2196 } 2197 2198 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2199 const struct mesh_setup *setup) 2200 { 2201 u8 *new_ie; 2202 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2203 struct ieee80211_sub_if_data, u.mesh); 2204 int i; 2205 2206 /* allocate information elements */ 2207 new_ie = NULL; 2208 2209 if (setup->ie_len) { 2210 new_ie = kmemdup(setup->ie, setup->ie_len, 2211 GFP_KERNEL); 2212 if (!new_ie) 2213 return -ENOMEM; 2214 } 2215 ifmsh->ie_len = setup->ie_len; 2216 ifmsh->ie = new_ie; 2217 2218 /* now copy the rest of the setup parameters */ 2219 ifmsh->mesh_id_len = setup->mesh_id_len; 2220 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2221 ifmsh->mesh_sp_id = setup->sync_method; 2222 ifmsh->mesh_pp_id = setup->path_sel_proto; 2223 ifmsh->mesh_pm_id = setup->path_metric; 2224 ifmsh->user_mpm = setup->user_mpm; 2225 ifmsh->mesh_auth_id = setup->auth_id; 2226 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2227 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2228 if (setup->is_authenticated) 2229 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2230 if (setup->is_secure) 2231 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2232 2233 /* mcast rate setting in Mesh Node */ 2234 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2235 sizeof(setup->mcast_rate)); 2236 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2237 2238 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2239 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2240 2241 sdata->beacon_rate_set = false; 2242 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2243 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2244 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2245 sdata->beacon_rateidx_mask[i] = 2246 setup->beacon_rate.control[i].legacy; 2247 if (sdata->beacon_rateidx_mask[i]) 2248 sdata->beacon_rate_set = true; 2249 } 2250 } 2251 2252 return 0; 2253 } 2254 2255 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2256 struct net_device *dev, u32 mask, 2257 const struct mesh_config *nconf) 2258 { 2259 struct mesh_config *conf; 2260 struct ieee80211_sub_if_data *sdata; 2261 struct ieee80211_if_mesh *ifmsh; 2262 2263 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2264 ifmsh = &sdata->u.mesh; 2265 2266 /* Set the config options which we are interested in setting */ 2267 conf = &(sdata->u.mesh.mshcfg); 2268 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2269 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2270 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2271 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2272 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2273 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2274 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2275 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2276 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2277 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2278 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2279 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2280 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2281 conf->element_ttl = nconf->element_ttl; 2282 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2283 if (ifmsh->user_mpm) 2284 return -EBUSY; 2285 conf->auto_open_plinks = nconf->auto_open_plinks; 2286 } 2287 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2288 conf->dot11MeshNbrOffsetMaxNeighbor = 2289 nconf->dot11MeshNbrOffsetMaxNeighbor; 2290 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2291 conf->dot11MeshHWMPmaxPREQretries = 2292 nconf->dot11MeshHWMPmaxPREQretries; 2293 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2294 conf->path_refresh_time = nconf->path_refresh_time; 2295 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2296 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2297 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2298 conf->dot11MeshHWMPactivePathTimeout = 2299 nconf->dot11MeshHWMPactivePathTimeout; 2300 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2301 conf->dot11MeshHWMPpreqMinInterval = 2302 nconf->dot11MeshHWMPpreqMinInterval; 2303 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2304 conf->dot11MeshHWMPperrMinInterval = 2305 nconf->dot11MeshHWMPperrMinInterval; 2306 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2307 mask)) 2308 conf->dot11MeshHWMPnetDiameterTraversalTime = 2309 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2310 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2311 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2312 ieee80211_mesh_root_setup(ifmsh); 2313 } 2314 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2315 /* our current gate announcement implementation rides on root 2316 * announcements, so require this ifmsh to also be a root node 2317 * */ 2318 if (nconf->dot11MeshGateAnnouncementProtocol && 2319 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2320 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2321 ieee80211_mesh_root_setup(ifmsh); 2322 } 2323 conf->dot11MeshGateAnnouncementProtocol = 2324 nconf->dot11MeshGateAnnouncementProtocol; 2325 } 2326 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2327 conf->dot11MeshHWMPRannInterval = 2328 nconf->dot11MeshHWMPRannInterval; 2329 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2330 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2331 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2332 /* our RSSI threshold implementation is supported only for 2333 * devices that report signal in dBm. 2334 */ 2335 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2336 return -ENOTSUPP; 2337 conf->rssi_threshold = nconf->rssi_threshold; 2338 } 2339 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2340 conf->ht_opmode = nconf->ht_opmode; 2341 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2342 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2343 } 2344 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2345 conf->dot11MeshHWMPactivePathToRootTimeout = 2346 nconf->dot11MeshHWMPactivePathToRootTimeout; 2347 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2348 conf->dot11MeshHWMProotInterval = 2349 nconf->dot11MeshHWMProotInterval; 2350 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2351 conf->dot11MeshHWMPconfirmationInterval = 2352 nconf->dot11MeshHWMPconfirmationInterval; 2353 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2354 conf->power_mode = nconf->power_mode; 2355 ieee80211_mps_local_status_update(sdata); 2356 } 2357 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2358 conf->dot11MeshAwakeWindowDuration = 2359 nconf->dot11MeshAwakeWindowDuration; 2360 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2361 conf->plink_timeout = nconf->plink_timeout; 2362 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2363 conf->dot11MeshConnectedToMeshGate = 2364 nconf->dot11MeshConnectedToMeshGate; 2365 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2366 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2367 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2368 conf->dot11MeshConnectedToAuthServer = 2369 nconf->dot11MeshConnectedToAuthServer; 2370 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2371 return 0; 2372 } 2373 2374 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2375 const struct mesh_config *conf, 2376 const struct mesh_setup *setup) 2377 { 2378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2379 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2380 int err; 2381 2382 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2383 err = copy_mesh_setup(ifmsh, setup); 2384 if (err) 2385 return err; 2386 2387 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2388 2389 /* can mesh use other SMPS modes? */ 2390 sdata->smps_mode = IEEE80211_SMPS_OFF; 2391 sdata->needed_rx_chains = sdata->local->rx_chains; 2392 2393 mutex_lock(&sdata->local->mtx); 2394 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2395 IEEE80211_CHANCTX_SHARED); 2396 mutex_unlock(&sdata->local->mtx); 2397 if (err) 2398 return err; 2399 2400 return ieee80211_start_mesh(sdata); 2401 } 2402 2403 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2404 { 2405 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2406 2407 ieee80211_stop_mesh(sdata); 2408 mutex_lock(&sdata->local->mtx); 2409 ieee80211_vif_release_channel(sdata); 2410 kfree(sdata->u.mesh.ie); 2411 mutex_unlock(&sdata->local->mtx); 2412 2413 return 0; 2414 } 2415 #endif 2416 2417 static int ieee80211_change_bss(struct wiphy *wiphy, 2418 struct net_device *dev, 2419 struct bss_parameters *params) 2420 { 2421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2422 struct ieee80211_supported_band *sband; 2423 u32 changed = 0; 2424 2425 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2426 return -ENOENT; 2427 2428 sband = ieee80211_get_sband(sdata); 2429 if (!sband) 2430 return -EINVAL; 2431 2432 if (params->use_cts_prot >= 0) { 2433 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2434 changed |= BSS_CHANGED_ERP_CTS_PROT; 2435 } 2436 if (params->use_short_preamble >= 0) { 2437 sdata->vif.bss_conf.use_short_preamble = 2438 params->use_short_preamble; 2439 changed |= BSS_CHANGED_ERP_PREAMBLE; 2440 } 2441 2442 if (!sdata->vif.bss_conf.use_short_slot && 2443 (sband->band == NL80211_BAND_5GHZ || 2444 sband->band == NL80211_BAND_6GHZ)) { 2445 sdata->vif.bss_conf.use_short_slot = true; 2446 changed |= BSS_CHANGED_ERP_SLOT; 2447 } 2448 2449 if (params->use_short_slot_time >= 0) { 2450 sdata->vif.bss_conf.use_short_slot = 2451 params->use_short_slot_time; 2452 changed |= BSS_CHANGED_ERP_SLOT; 2453 } 2454 2455 if (params->basic_rates) { 2456 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2457 wiphy->bands[sband->band], 2458 params->basic_rates, 2459 params->basic_rates_len, 2460 &sdata->vif.bss_conf.basic_rates); 2461 changed |= BSS_CHANGED_BASIC_RATES; 2462 ieee80211_check_rate_mask(sdata); 2463 } 2464 2465 if (params->ap_isolate >= 0) { 2466 if (params->ap_isolate) 2467 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2468 else 2469 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2470 ieee80211_check_fast_rx_iface(sdata); 2471 } 2472 2473 if (params->ht_opmode >= 0) { 2474 sdata->vif.bss_conf.ht_operation_mode = 2475 (u16) params->ht_opmode; 2476 changed |= BSS_CHANGED_HT; 2477 } 2478 2479 if (params->p2p_ctwindow >= 0) { 2480 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2481 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2482 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2483 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2484 changed |= BSS_CHANGED_P2P_PS; 2485 } 2486 2487 if (params->p2p_opp_ps > 0) { 2488 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2489 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2490 changed |= BSS_CHANGED_P2P_PS; 2491 } else if (params->p2p_opp_ps == 0) { 2492 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2493 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2494 changed |= BSS_CHANGED_P2P_PS; 2495 } 2496 2497 ieee80211_bss_info_change_notify(sdata, changed); 2498 2499 return 0; 2500 } 2501 2502 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2503 struct net_device *dev, 2504 struct ieee80211_txq_params *params) 2505 { 2506 struct ieee80211_local *local = wiphy_priv(wiphy); 2507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2508 struct ieee80211_tx_queue_params p; 2509 2510 if (!local->ops->conf_tx) 2511 return -EOPNOTSUPP; 2512 2513 if (local->hw.queues < IEEE80211_NUM_ACS) 2514 return -EOPNOTSUPP; 2515 2516 memset(&p, 0, sizeof(p)); 2517 p.aifs = params->aifs; 2518 p.cw_max = params->cwmax; 2519 p.cw_min = params->cwmin; 2520 p.txop = params->txop; 2521 2522 /* 2523 * Setting tx queue params disables u-apsd because it's only 2524 * called in master mode. 2525 */ 2526 p.uapsd = false; 2527 2528 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2529 2530 sdata->tx_conf[params->ac] = p; 2531 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2532 wiphy_debug(local->hw.wiphy, 2533 "failed to set TX queue parameters for AC %d\n", 2534 params->ac); 2535 return -EINVAL; 2536 } 2537 2538 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2539 2540 return 0; 2541 } 2542 2543 #ifdef CONFIG_PM 2544 static int ieee80211_suspend(struct wiphy *wiphy, 2545 struct cfg80211_wowlan *wowlan) 2546 { 2547 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2548 } 2549 2550 static int ieee80211_resume(struct wiphy *wiphy) 2551 { 2552 return __ieee80211_resume(wiphy_priv(wiphy)); 2553 } 2554 #else 2555 #define ieee80211_suspend NULL 2556 #define ieee80211_resume NULL 2557 #endif 2558 2559 static int ieee80211_scan(struct wiphy *wiphy, 2560 struct cfg80211_scan_request *req) 2561 { 2562 struct ieee80211_sub_if_data *sdata; 2563 2564 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2565 2566 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2567 case NL80211_IFTYPE_STATION: 2568 case NL80211_IFTYPE_ADHOC: 2569 case NL80211_IFTYPE_MESH_POINT: 2570 case NL80211_IFTYPE_P2P_CLIENT: 2571 case NL80211_IFTYPE_P2P_DEVICE: 2572 break; 2573 case NL80211_IFTYPE_P2P_GO: 2574 if (sdata->local->ops->hw_scan) 2575 break; 2576 /* 2577 * FIXME: implement NoA while scanning in software, 2578 * for now fall through to allow scanning only when 2579 * beaconing hasn't been configured yet 2580 */ 2581 fallthrough; 2582 case NL80211_IFTYPE_AP: 2583 /* 2584 * If the scan has been forced (and the driver supports 2585 * forcing), don't care about being beaconing already. 2586 * This will create problems to the attached stations (e.g. all 2587 * the frames sent while scanning on other channel will be 2588 * lost) 2589 */ 2590 if (sdata->u.ap.beacon && 2591 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2592 !(req->flags & NL80211_SCAN_FLAG_AP))) 2593 return -EOPNOTSUPP; 2594 break; 2595 case NL80211_IFTYPE_NAN: 2596 default: 2597 return -EOPNOTSUPP; 2598 } 2599 2600 return ieee80211_request_scan(sdata, req); 2601 } 2602 2603 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2604 { 2605 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2606 } 2607 2608 static int 2609 ieee80211_sched_scan_start(struct wiphy *wiphy, 2610 struct net_device *dev, 2611 struct cfg80211_sched_scan_request *req) 2612 { 2613 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2614 2615 if (!sdata->local->ops->sched_scan_start) 2616 return -EOPNOTSUPP; 2617 2618 return ieee80211_request_sched_scan_start(sdata, req); 2619 } 2620 2621 static int 2622 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2623 u64 reqid) 2624 { 2625 struct ieee80211_local *local = wiphy_priv(wiphy); 2626 2627 if (!local->ops->sched_scan_stop) 2628 return -EOPNOTSUPP; 2629 2630 return ieee80211_request_sched_scan_stop(local); 2631 } 2632 2633 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2634 struct cfg80211_auth_request *req) 2635 { 2636 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2637 } 2638 2639 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2640 struct cfg80211_assoc_request *req) 2641 { 2642 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2643 } 2644 2645 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2646 struct cfg80211_deauth_request *req) 2647 { 2648 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2649 } 2650 2651 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2652 struct cfg80211_disassoc_request *req) 2653 { 2654 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2655 } 2656 2657 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2658 struct cfg80211_ibss_params *params) 2659 { 2660 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2661 } 2662 2663 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2664 { 2665 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2666 } 2667 2668 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2669 struct ocb_setup *setup) 2670 { 2671 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2672 } 2673 2674 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2675 { 2676 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2677 } 2678 2679 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2680 int rate[NUM_NL80211_BANDS]) 2681 { 2682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2683 2684 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2685 sizeof(int) * NUM_NL80211_BANDS); 2686 2687 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2688 2689 return 0; 2690 } 2691 2692 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2693 { 2694 struct ieee80211_local *local = wiphy_priv(wiphy); 2695 int err; 2696 2697 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2698 ieee80211_check_fast_xmit_all(local); 2699 2700 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2701 2702 if (err) { 2703 ieee80211_check_fast_xmit_all(local); 2704 return err; 2705 } 2706 } 2707 2708 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2709 (changed & WIPHY_PARAM_DYN_ACK)) { 2710 s16 coverage_class; 2711 2712 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2713 wiphy->coverage_class : -1; 2714 err = drv_set_coverage_class(local, coverage_class); 2715 2716 if (err) 2717 return err; 2718 } 2719 2720 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2721 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2722 2723 if (err) 2724 return err; 2725 } 2726 2727 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2728 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2729 return -EINVAL; 2730 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2731 } 2732 if (changed & WIPHY_PARAM_RETRY_LONG) { 2733 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2734 return -EINVAL; 2735 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2736 } 2737 if (changed & 2738 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2739 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2740 2741 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2742 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2743 WIPHY_PARAM_TXQ_QUANTUM)) 2744 ieee80211_txq_set_params(local); 2745 2746 return 0; 2747 } 2748 2749 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2750 struct wireless_dev *wdev, 2751 enum nl80211_tx_power_setting type, int mbm) 2752 { 2753 struct ieee80211_local *local = wiphy_priv(wiphy); 2754 struct ieee80211_sub_if_data *sdata; 2755 enum nl80211_tx_power_setting txp_type = type; 2756 bool update_txp_type = false; 2757 bool has_monitor = false; 2758 2759 if (wdev) { 2760 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2761 2762 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2763 sdata = wiphy_dereference(local->hw.wiphy, 2764 local->monitor_sdata); 2765 if (!sdata) 2766 return -EOPNOTSUPP; 2767 } 2768 2769 switch (type) { 2770 case NL80211_TX_POWER_AUTOMATIC: 2771 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2772 txp_type = NL80211_TX_POWER_LIMITED; 2773 break; 2774 case NL80211_TX_POWER_LIMITED: 2775 case NL80211_TX_POWER_FIXED: 2776 if (mbm < 0 || (mbm % 100)) 2777 return -EOPNOTSUPP; 2778 sdata->user_power_level = MBM_TO_DBM(mbm); 2779 break; 2780 } 2781 2782 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2783 update_txp_type = true; 2784 sdata->vif.bss_conf.txpower_type = txp_type; 2785 } 2786 2787 ieee80211_recalc_txpower(sdata, update_txp_type); 2788 2789 return 0; 2790 } 2791 2792 switch (type) { 2793 case NL80211_TX_POWER_AUTOMATIC: 2794 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2795 txp_type = NL80211_TX_POWER_LIMITED; 2796 break; 2797 case NL80211_TX_POWER_LIMITED: 2798 case NL80211_TX_POWER_FIXED: 2799 if (mbm < 0 || (mbm % 100)) 2800 return -EOPNOTSUPP; 2801 local->user_power_level = MBM_TO_DBM(mbm); 2802 break; 2803 } 2804 2805 mutex_lock(&local->iflist_mtx); 2806 list_for_each_entry(sdata, &local->interfaces, list) { 2807 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2808 has_monitor = true; 2809 continue; 2810 } 2811 sdata->user_power_level = local->user_power_level; 2812 if (txp_type != sdata->vif.bss_conf.txpower_type) 2813 update_txp_type = true; 2814 sdata->vif.bss_conf.txpower_type = txp_type; 2815 } 2816 list_for_each_entry(sdata, &local->interfaces, list) { 2817 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2818 continue; 2819 ieee80211_recalc_txpower(sdata, update_txp_type); 2820 } 2821 mutex_unlock(&local->iflist_mtx); 2822 2823 if (has_monitor) { 2824 sdata = wiphy_dereference(local->hw.wiphy, 2825 local->monitor_sdata); 2826 if (sdata) { 2827 sdata->user_power_level = local->user_power_level; 2828 if (txp_type != sdata->vif.bss_conf.txpower_type) 2829 update_txp_type = true; 2830 sdata->vif.bss_conf.txpower_type = txp_type; 2831 2832 ieee80211_recalc_txpower(sdata, update_txp_type); 2833 } 2834 } 2835 2836 return 0; 2837 } 2838 2839 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2840 struct wireless_dev *wdev, 2841 int *dbm) 2842 { 2843 struct ieee80211_local *local = wiphy_priv(wiphy); 2844 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2845 2846 if (local->ops->get_txpower) 2847 return drv_get_txpower(local, sdata, dbm); 2848 2849 if (!local->use_chanctx) 2850 *dbm = local->hw.conf.power_level; 2851 else 2852 *dbm = sdata->vif.bss_conf.txpower; 2853 2854 return 0; 2855 } 2856 2857 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2858 { 2859 struct ieee80211_local *local = wiphy_priv(wiphy); 2860 2861 drv_rfkill_poll(local); 2862 } 2863 2864 #ifdef CONFIG_NL80211_TESTMODE 2865 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2866 struct wireless_dev *wdev, 2867 void *data, int len) 2868 { 2869 struct ieee80211_local *local = wiphy_priv(wiphy); 2870 struct ieee80211_vif *vif = NULL; 2871 2872 if (!local->ops->testmode_cmd) 2873 return -EOPNOTSUPP; 2874 2875 if (wdev) { 2876 struct ieee80211_sub_if_data *sdata; 2877 2878 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2879 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2880 vif = &sdata->vif; 2881 } 2882 2883 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2884 } 2885 2886 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2887 struct sk_buff *skb, 2888 struct netlink_callback *cb, 2889 void *data, int len) 2890 { 2891 struct ieee80211_local *local = wiphy_priv(wiphy); 2892 2893 if (!local->ops->testmode_dump) 2894 return -EOPNOTSUPP; 2895 2896 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2897 } 2898 #endif 2899 2900 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2901 enum ieee80211_smps_mode smps_mode) 2902 { 2903 const u8 *ap; 2904 enum ieee80211_smps_mode old_req; 2905 int err; 2906 struct sta_info *sta; 2907 bool tdls_peer_found = false; 2908 2909 lockdep_assert_held(&sdata->wdev.mtx); 2910 2911 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2912 return -EINVAL; 2913 2914 old_req = sdata->u.mgd.req_smps; 2915 sdata->u.mgd.req_smps = smps_mode; 2916 2917 if (old_req == smps_mode && 2918 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2919 return 0; 2920 2921 /* 2922 * If not associated, or current association is not an HT 2923 * association, there's no need to do anything, just store 2924 * the new value until we associate. 2925 */ 2926 if (!sdata->u.mgd.associated || 2927 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2928 return 0; 2929 2930 ap = sdata->u.mgd.bssid; 2931 2932 rcu_read_lock(); 2933 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2934 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2935 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2936 continue; 2937 2938 tdls_peer_found = true; 2939 break; 2940 } 2941 rcu_read_unlock(); 2942 2943 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2944 if (tdls_peer_found || !sdata->u.mgd.powersave) 2945 smps_mode = IEEE80211_SMPS_OFF; 2946 else 2947 smps_mode = IEEE80211_SMPS_DYNAMIC; 2948 } 2949 2950 /* send SM PS frame to AP */ 2951 err = ieee80211_send_smps_action(sdata, smps_mode, 2952 ap, ap); 2953 if (err) 2954 sdata->u.mgd.req_smps = old_req; 2955 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2956 ieee80211_teardown_tdls_peers(sdata); 2957 2958 return err; 2959 } 2960 2961 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2962 bool enabled, int timeout) 2963 { 2964 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2965 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2966 2967 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2968 return -EOPNOTSUPP; 2969 2970 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2971 return -EOPNOTSUPP; 2972 2973 if (enabled == sdata->u.mgd.powersave && 2974 timeout == local->dynamic_ps_forced_timeout) 2975 return 0; 2976 2977 sdata->u.mgd.powersave = enabled; 2978 local->dynamic_ps_forced_timeout = timeout; 2979 2980 /* no change, but if automatic follow powersave */ 2981 sdata_lock(sdata); 2982 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2983 sdata_unlock(sdata); 2984 2985 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2986 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2987 2988 ieee80211_recalc_ps(local); 2989 ieee80211_recalc_ps_vif(sdata); 2990 ieee80211_check_fast_rx_iface(sdata); 2991 2992 return 0; 2993 } 2994 2995 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2996 struct net_device *dev, 2997 s32 rssi_thold, u32 rssi_hyst) 2998 { 2999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3000 struct ieee80211_vif *vif = &sdata->vif; 3001 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3002 3003 if (rssi_thold == bss_conf->cqm_rssi_thold && 3004 rssi_hyst == bss_conf->cqm_rssi_hyst) 3005 return 0; 3006 3007 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3008 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3009 return -EOPNOTSUPP; 3010 3011 bss_conf->cqm_rssi_thold = rssi_thold; 3012 bss_conf->cqm_rssi_hyst = rssi_hyst; 3013 bss_conf->cqm_rssi_low = 0; 3014 bss_conf->cqm_rssi_high = 0; 3015 sdata->u.mgd.last_cqm_event_signal = 0; 3016 3017 /* tell the driver upon association, unless already associated */ 3018 if (sdata->u.mgd.associated && 3019 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3020 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3021 3022 return 0; 3023 } 3024 3025 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3026 struct net_device *dev, 3027 s32 rssi_low, s32 rssi_high) 3028 { 3029 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3030 struct ieee80211_vif *vif = &sdata->vif; 3031 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3032 3033 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3034 return -EOPNOTSUPP; 3035 3036 bss_conf->cqm_rssi_low = rssi_low; 3037 bss_conf->cqm_rssi_high = rssi_high; 3038 bss_conf->cqm_rssi_thold = 0; 3039 bss_conf->cqm_rssi_hyst = 0; 3040 sdata->u.mgd.last_cqm_event_signal = 0; 3041 3042 /* tell the driver upon association, unless already associated */ 3043 if (sdata->u.mgd.associated && 3044 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3045 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3046 3047 return 0; 3048 } 3049 3050 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3051 struct net_device *dev, 3052 const u8 *addr, 3053 const struct cfg80211_bitrate_mask *mask) 3054 { 3055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3056 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3057 int i, ret; 3058 3059 if (!ieee80211_sdata_running(sdata)) 3060 return -ENETDOWN; 3061 3062 /* 3063 * If active validate the setting and reject it if it doesn't leave 3064 * at least one basic rate usable, since we really have to be able 3065 * to send something, and if we're an AP we have to be able to do 3066 * so at a basic rate so that all clients can receive it. 3067 */ 3068 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 3069 sdata->vif.bss_conf.chandef.chan) { 3070 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3071 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3072 3073 if (!(mask->control[band].legacy & basic_rates)) 3074 return -EINVAL; 3075 } 3076 3077 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3078 ret = drv_set_bitrate_mask(local, sdata, mask); 3079 if (ret) 3080 return ret; 3081 } 3082 3083 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3084 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3085 int j; 3086 3087 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3088 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3089 sizeof(mask->control[i].ht_mcs)); 3090 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3091 mask->control[i].vht_mcs, 3092 sizeof(mask->control[i].vht_mcs)); 3093 3094 sdata->rc_has_mcs_mask[i] = false; 3095 sdata->rc_has_vht_mcs_mask[i] = false; 3096 if (!sband) 3097 continue; 3098 3099 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3100 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3101 sdata->rc_has_mcs_mask[i] = true; 3102 break; 3103 } 3104 } 3105 3106 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3107 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3108 sdata->rc_has_vht_mcs_mask[i] = true; 3109 break; 3110 } 3111 } 3112 } 3113 3114 return 0; 3115 } 3116 3117 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3118 struct net_device *dev, 3119 struct cfg80211_chan_def *chandef, 3120 u32 cac_time_ms) 3121 { 3122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3123 struct ieee80211_local *local = sdata->local; 3124 int err; 3125 3126 mutex_lock(&local->mtx); 3127 if (!list_empty(&local->roc_list) || local->scanning) { 3128 err = -EBUSY; 3129 goto out_unlock; 3130 } 3131 3132 /* whatever, but channel contexts should not complain about that one */ 3133 sdata->smps_mode = IEEE80211_SMPS_OFF; 3134 sdata->needed_rx_chains = local->rx_chains; 3135 3136 err = ieee80211_vif_use_channel(sdata, chandef, 3137 IEEE80211_CHANCTX_SHARED); 3138 if (err) 3139 goto out_unlock; 3140 3141 ieee80211_queue_delayed_work(&sdata->local->hw, 3142 &sdata->dfs_cac_timer_work, 3143 msecs_to_jiffies(cac_time_ms)); 3144 3145 out_unlock: 3146 mutex_unlock(&local->mtx); 3147 return err; 3148 } 3149 3150 static void ieee80211_end_cac(struct wiphy *wiphy, 3151 struct net_device *dev) 3152 { 3153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3154 struct ieee80211_local *local = sdata->local; 3155 3156 mutex_lock(&local->mtx); 3157 list_for_each_entry(sdata, &local->interfaces, list) { 3158 /* it might be waiting for the local->mtx, but then 3159 * by the time it gets it, sdata->wdev.cac_started 3160 * will no longer be true 3161 */ 3162 cancel_delayed_work(&sdata->dfs_cac_timer_work); 3163 3164 if (sdata->wdev.cac_started) { 3165 ieee80211_vif_release_channel(sdata); 3166 sdata->wdev.cac_started = false; 3167 } 3168 } 3169 mutex_unlock(&local->mtx); 3170 } 3171 3172 static struct cfg80211_beacon_data * 3173 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3174 { 3175 struct cfg80211_beacon_data *new_beacon; 3176 u8 *pos; 3177 int len; 3178 3179 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3180 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3181 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3182 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3183 3184 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3185 if (!new_beacon) 3186 return NULL; 3187 3188 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3189 new_beacon->mbssid_ies = 3190 kzalloc(struct_size(new_beacon->mbssid_ies, 3191 elem, beacon->mbssid_ies->cnt), 3192 GFP_KERNEL); 3193 if (!new_beacon->mbssid_ies) { 3194 kfree(new_beacon); 3195 return NULL; 3196 } 3197 } 3198 3199 pos = (u8 *)(new_beacon + 1); 3200 if (beacon->head_len) { 3201 new_beacon->head_len = beacon->head_len; 3202 new_beacon->head = pos; 3203 memcpy(pos, beacon->head, beacon->head_len); 3204 pos += beacon->head_len; 3205 } 3206 if (beacon->tail_len) { 3207 new_beacon->tail_len = beacon->tail_len; 3208 new_beacon->tail = pos; 3209 memcpy(pos, beacon->tail, beacon->tail_len); 3210 pos += beacon->tail_len; 3211 } 3212 if (beacon->beacon_ies_len) { 3213 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3214 new_beacon->beacon_ies = pos; 3215 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3216 pos += beacon->beacon_ies_len; 3217 } 3218 if (beacon->proberesp_ies_len) { 3219 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3220 new_beacon->proberesp_ies = pos; 3221 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3222 pos += beacon->proberesp_ies_len; 3223 } 3224 if (beacon->assocresp_ies_len) { 3225 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3226 new_beacon->assocresp_ies = pos; 3227 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3228 pos += beacon->assocresp_ies_len; 3229 } 3230 if (beacon->probe_resp_len) { 3231 new_beacon->probe_resp_len = beacon->probe_resp_len; 3232 new_beacon->probe_resp = pos; 3233 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3234 pos += beacon->probe_resp_len; 3235 } 3236 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3237 pos += ieee80211_copy_mbssid_beacon(pos, 3238 new_beacon->mbssid_ies, 3239 beacon->mbssid_ies); 3240 3241 /* might copy -1, meaning no changes requested */ 3242 new_beacon->ftm_responder = beacon->ftm_responder; 3243 if (beacon->lci) { 3244 new_beacon->lci_len = beacon->lci_len; 3245 new_beacon->lci = pos; 3246 memcpy(pos, beacon->lci, beacon->lci_len); 3247 pos += beacon->lci_len; 3248 } 3249 if (beacon->civicloc) { 3250 new_beacon->civicloc_len = beacon->civicloc_len; 3251 new_beacon->civicloc = pos; 3252 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3253 pos += beacon->civicloc_len; 3254 } 3255 3256 return new_beacon; 3257 } 3258 3259 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3260 { 3261 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3262 struct ieee80211_local *local = sdata->local; 3263 3264 rcu_read_lock(); 3265 3266 if (vif->mbssid_tx_vif == vif) { 3267 /* Trigger ieee80211_csa_finish() on the non-transmitting 3268 * interfaces when channel switch is received on 3269 * transmitting interface 3270 */ 3271 struct ieee80211_sub_if_data *iter; 3272 3273 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3274 if (!ieee80211_sdata_running(iter)) 3275 continue; 3276 3277 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3278 continue; 3279 3280 ieee80211_queue_work(&iter->local->hw, 3281 &iter->csa_finalize_work); 3282 } 3283 } 3284 ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work); 3285 3286 rcu_read_unlock(); 3287 } 3288 EXPORT_SYMBOL(ieee80211_csa_finish); 3289 3290 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3291 { 3292 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3293 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3294 struct ieee80211_local *local = sdata->local; 3295 3296 sdata->csa_block_tx = block_tx; 3297 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3298 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3299 } 3300 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3301 3302 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3303 u32 *changed) 3304 { 3305 int err; 3306 3307 switch (sdata->vif.type) { 3308 case NL80211_IFTYPE_AP: 3309 if (!sdata->u.ap.next_beacon) 3310 return -EINVAL; 3311 3312 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3313 NULL, NULL); 3314 ieee80211_free_next_beacon(sdata); 3315 3316 if (err < 0) 3317 return err; 3318 *changed |= err; 3319 break; 3320 case NL80211_IFTYPE_ADHOC: 3321 err = ieee80211_ibss_finish_csa(sdata); 3322 if (err < 0) 3323 return err; 3324 *changed |= err; 3325 break; 3326 #ifdef CONFIG_MAC80211_MESH 3327 case NL80211_IFTYPE_MESH_POINT: 3328 err = ieee80211_mesh_finish_csa(sdata); 3329 if (err < 0) 3330 return err; 3331 *changed |= err; 3332 break; 3333 #endif 3334 default: 3335 WARN_ON(1); 3336 return -EINVAL; 3337 } 3338 3339 return 0; 3340 } 3341 3342 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3343 { 3344 struct ieee80211_local *local = sdata->local; 3345 u32 changed = 0; 3346 int err; 3347 3348 sdata_assert_lock(sdata); 3349 lockdep_assert_held(&local->mtx); 3350 lockdep_assert_held(&local->chanctx_mtx); 3351 3352 /* 3353 * using reservation isn't immediate as it may be deferred until later 3354 * with multi-vif. once reservation is complete it will re-schedule the 3355 * work with no reserved_chanctx so verify chandef to check if it 3356 * completed successfully 3357 */ 3358 3359 if (sdata->reserved_chanctx) { 3360 /* 3361 * with multi-vif csa driver may call ieee80211_csa_finish() 3362 * many times while waiting for other interfaces to use their 3363 * reservations 3364 */ 3365 if (sdata->reserved_ready) 3366 return 0; 3367 3368 return ieee80211_vif_use_reserved_context(sdata); 3369 } 3370 3371 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3372 &sdata->csa_chandef)) 3373 return -EINVAL; 3374 3375 sdata->vif.csa_active = false; 3376 3377 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3378 if (err) 3379 return err; 3380 3381 ieee80211_bss_info_change_notify(sdata, changed); 3382 3383 if (sdata->csa_block_tx) { 3384 ieee80211_wake_vif_queues(local, sdata, 3385 IEEE80211_QUEUE_STOP_REASON_CSA); 3386 sdata->csa_block_tx = false; 3387 } 3388 3389 err = drv_post_channel_switch(sdata); 3390 if (err) 3391 return err; 3392 3393 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3394 3395 return 0; 3396 } 3397 3398 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3399 { 3400 if (__ieee80211_csa_finalize(sdata)) { 3401 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3402 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3403 GFP_KERNEL); 3404 } 3405 } 3406 3407 void ieee80211_csa_finalize_work(struct work_struct *work) 3408 { 3409 struct ieee80211_sub_if_data *sdata = 3410 container_of(work, struct ieee80211_sub_if_data, 3411 csa_finalize_work); 3412 struct ieee80211_local *local = sdata->local; 3413 3414 sdata_lock(sdata); 3415 mutex_lock(&local->mtx); 3416 mutex_lock(&local->chanctx_mtx); 3417 3418 /* AP might have been stopped while waiting for the lock. */ 3419 if (!sdata->vif.csa_active) 3420 goto unlock; 3421 3422 if (!ieee80211_sdata_running(sdata)) 3423 goto unlock; 3424 3425 ieee80211_csa_finalize(sdata); 3426 3427 unlock: 3428 mutex_unlock(&local->chanctx_mtx); 3429 mutex_unlock(&local->mtx); 3430 sdata_unlock(sdata); 3431 } 3432 3433 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3434 struct cfg80211_csa_settings *params, 3435 u32 *changed) 3436 { 3437 struct ieee80211_csa_settings csa = {}; 3438 int err; 3439 3440 switch (sdata->vif.type) { 3441 case NL80211_IFTYPE_AP: 3442 sdata->u.ap.next_beacon = 3443 cfg80211_beacon_dup(¶ms->beacon_after); 3444 if (!sdata->u.ap.next_beacon) 3445 return -ENOMEM; 3446 3447 /* 3448 * With a count of 0, we don't have to wait for any 3449 * TBTT before switching, so complete the CSA 3450 * immediately. In theory, with a count == 1 we 3451 * should delay the switch until just before the next 3452 * TBTT, but that would complicate things so we switch 3453 * immediately too. If we would delay the switch 3454 * until the next TBTT, we would have to set the probe 3455 * response here. 3456 * 3457 * TODO: A channel switch with count <= 1 without 3458 * sending a CSA action frame is kind of useless, 3459 * because the clients won't know we're changing 3460 * channels. The action frame must be implemented 3461 * either here or in the userspace. 3462 */ 3463 if (params->count <= 1) 3464 break; 3465 3466 if ((params->n_counter_offsets_beacon > 3467 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3468 (params->n_counter_offsets_presp > 3469 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3470 ieee80211_free_next_beacon(sdata); 3471 return -EINVAL; 3472 } 3473 3474 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3475 csa.counter_offsets_presp = params->counter_offsets_presp; 3476 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3477 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3478 csa.count = params->count; 3479 3480 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL); 3481 if (err < 0) { 3482 ieee80211_free_next_beacon(sdata); 3483 return err; 3484 } 3485 *changed |= err; 3486 3487 break; 3488 case NL80211_IFTYPE_ADHOC: 3489 if (!sdata->vif.bss_conf.ibss_joined) 3490 return -EINVAL; 3491 3492 if (params->chandef.width != sdata->u.ibss.chandef.width) 3493 return -EINVAL; 3494 3495 switch (params->chandef.width) { 3496 case NL80211_CHAN_WIDTH_40: 3497 if (cfg80211_get_chandef_type(¶ms->chandef) != 3498 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3499 return -EINVAL; 3500 break; 3501 case NL80211_CHAN_WIDTH_5: 3502 case NL80211_CHAN_WIDTH_10: 3503 case NL80211_CHAN_WIDTH_20_NOHT: 3504 case NL80211_CHAN_WIDTH_20: 3505 break; 3506 default: 3507 return -EINVAL; 3508 } 3509 3510 /* changes into another band are not supported */ 3511 if (sdata->u.ibss.chandef.chan->band != 3512 params->chandef.chan->band) 3513 return -EINVAL; 3514 3515 /* see comments in the NL80211_IFTYPE_AP block */ 3516 if (params->count > 1) { 3517 err = ieee80211_ibss_csa_beacon(sdata, params); 3518 if (err < 0) 3519 return err; 3520 *changed |= err; 3521 } 3522 3523 ieee80211_send_action_csa(sdata, params); 3524 3525 break; 3526 #ifdef CONFIG_MAC80211_MESH 3527 case NL80211_IFTYPE_MESH_POINT: { 3528 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3529 3530 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3531 return -EINVAL; 3532 3533 /* changes into another band are not supported */ 3534 if (sdata->vif.bss_conf.chandef.chan->band != 3535 params->chandef.chan->band) 3536 return -EINVAL; 3537 3538 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3539 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3540 if (!ifmsh->pre_value) 3541 ifmsh->pre_value = 1; 3542 else 3543 ifmsh->pre_value++; 3544 } 3545 3546 /* see comments in the NL80211_IFTYPE_AP block */ 3547 if (params->count > 1) { 3548 err = ieee80211_mesh_csa_beacon(sdata, params); 3549 if (err < 0) { 3550 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3551 return err; 3552 } 3553 *changed |= err; 3554 } 3555 3556 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3557 ieee80211_send_action_csa(sdata, params); 3558 3559 break; 3560 } 3561 #endif 3562 default: 3563 return -EOPNOTSUPP; 3564 } 3565 3566 return 0; 3567 } 3568 3569 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3570 { 3571 sdata->vif.color_change_active = false; 3572 3573 ieee80211_free_next_beacon(sdata); 3574 3575 cfg80211_color_change_aborted_notify(sdata->dev); 3576 } 3577 3578 static int 3579 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3580 struct cfg80211_csa_settings *params) 3581 { 3582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3583 struct ieee80211_local *local = sdata->local; 3584 struct ieee80211_channel_switch ch_switch; 3585 struct ieee80211_chanctx_conf *conf; 3586 struct ieee80211_chanctx *chanctx; 3587 u32 changed = 0; 3588 int err; 3589 3590 sdata_assert_lock(sdata); 3591 lockdep_assert_held(&local->mtx); 3592 3593 if (!list_empty(&local->roc_list) || local->scanning) 3594 return -EBUSY; 3595 3596 if (sdata->wdev.cac_started) 3597 return -EBUSY; 3598 3599 if (cfg80211_chandef_identical(¶ms->chandef, 3600 &sdata->vif.bss_conf.chandef)) 3601 return -EINVAL; 3602 3603 /* don't allow another channel switch if one is already active. */ 3604 if (sdata->vif.csa_active) 3605 return -EBUSY; 3606 3607 mutex_lock(&local->chanctx_mtx); 3608 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3609 lockdep_is_held(&local->chanctx_mtx)); 3610 if (!conf) { 3611 err = -EBUSY; 3612 goto out; 3613 } 3614 3615 if (params->chandef.chan->freq_offset) { 3616 /* this may work, but is untested */ 3617 err = -EOPNOTSUPP; 3618 goto out; 3619 } 3620 3621 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3622 3623 ch_switch.timestamp = 0; 3624 ch_switch.device_timestamp = 0; 3625 ch_switch.block_tx = params->block_tx; 3626 ch_switch.chandef = params->chandef; 3627 ch_switch.count = params->count; 3628 3629 err = drv_pre_channel_switch(sdata, &ch_switch); 3630 if (err) 3631 goto out; 3632 3633 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3634 chanctx->mode, 3635 params->radar_required); 3636 if (err) 3637 goto out; 3638 3639 /* if reservation is invalid then this will fail */ 3640 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3641 if (err) { 3642 ieee80211_vif_unreserve_chanctx(sdata); 3643 goto out; 3644 } 3645 3646 /* if there is a color change in progress, abort it */ 3647 if (sdata->vif.color_change_active) 3648 ieee80211_color_change_abort(sdata); 3649 3650 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3651 if (err) { 3652 ieee80211_vif_unreserve_chanctx(sdata); 3653 goto out; 3654 } 3655 3656 sdata->csa_chandef = params->chandef; 3657 sdata->csa_block_tx = params->block_tx; 3658 sdata->vif.csa_active = true; 3659 3660 if (sdata->csa_block_tx) 3661 ieee80211_stop_vif_queues(local, sdata, 3662 IEEE80211_QUEUE_STOP_REASON_CSA); 3663 3664 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3665 params->count, params->block_tx); 3666 3667 if (changed) { 3668 ieee80211_bss_info_change_notify(sdata, changed); 3669 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3670 } else { 3671 /* if the beacon didn't change, we can finalize immediately */ 3672 ieee80211_csa_finalize(sdata); 3673 } 3674 3675 out: 3676 mutex_unlock(&local->chanctx_mtx); 3677 return err; 3678 } 3679 3680 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3681 struct cfg80211_csa_settings *params) 3682 { 3683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3684 struct ieee80211_local *local = sdata->local; 3685 int err; 3686 3687 mutex_lock(&local->mtx); 3688 err = __ieee80211_channel_switch(wiphy, dev, params); 3689 mutex_unlock(&local->mtx); 3690 3691 return err; 3692 } 3693 3694 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3695 { 3696 lockdep_assert_held(&local->mtx); 3697 3698 local->roc_cookie_counter++; 3699 3700 /* wow, you wrapped 64 bits ... more likely a bug */ 3701 if (WARN_ON(local->roc_cookie_counter == 0)) 3702 local->roc_cookie_counter++; 3703 3704 return local->roc_cookie_counter; 3705 } 3706 3707 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3708 u64 *cookie, gfp_t gfp) 3709 { 3710 unsigned long spin_flags; 3711 struct sk_buff *ack_skb; 3712 int id; 3713 3714 ack_skb = skb_copy(skb, gfp); 3715 if (!ack_skb) 3716 return -ENOMEM; 3717 3718 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3719 id = idr_alloc(&local->ack_status_frames, ack_skb, 3720 1, 0x2000, GFP_ATOMIC); 3721 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3722 3723 if (id < 0) { 3724 kfree_skb(ack_skb); 3725 return -ENOMEM; 3726 } 3727 3728 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3729 3730 *cookie = ieee80211_mgmt_tx_cookie(local); 3731 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3732 3733 return 0; 3734 } 3735 3736 static void 3737 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3738 struct wireless_dev *wdev, 3739 struct mgmt_frame_regs *upd) 3740 { 3741 struct ieee80211_local *local = wiphy_priv(wiphy); 3742 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3743 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3744 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3745 bool global_change, intf_change; 3746 3747 global_change = 3748 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3749 (local->rx_mcast_action_reg != 3750 !!(upd->global_mcast_stypes & action_mask)); 3751 local->probe_req_reg = upd->global_stypes & preq_mask; 3752 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3753 3754 intf_change = (sdata->vif.probe_req_reg != 3755 !!(upd->interface_stypes & preq_mask)) || 3756 (sdata->vif.rx_mcast_action_reg != 3757 !!(upd->interface_mcast_stypes & action_mask)); 3758 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3759 sdata->vif.rx_mcast_action_reg = 3760 upd->interface_mcast_stypes & action_mask; 3761 3762 if (!local->open_count) 3763 return; 3764 3765 if (intf_change && ieee80211_sdata_running(sdata)) 3766 drv_config_iface_filter(local, sdata, 3767 sdata->vif.probe_req_reg ? 3768 FIF_PROBE_REQ : 0, 3769 FIF_PROBE_REQ); 3770 3771 if (global_change) 3772 ieee80211_configure_filter(local); 3773 } 3774 3775 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3776 { 3777 struct ieee80211_local *local = wiphy_priv(wiphy); 3778 3779 if (local->started) 3780 return -EOPNOTSUPP; 3781 3782 return drv_set_antenna(local, tx_ant, rx_ant); 3783 } 3784 3785 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3786 { 3787 struct ieee80211_local *local = wiphy_priv(wiphy); 3788 3789 return drv_get_antenna(local, tx_ant, rx_ant); 3790 } 3791 3792 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3793 struct net_device *dev, 3794 struct cfg80211_gtk_rekey_data *data) 3795 { 3796 struct ieee80211_local *local = wiphy_priv(wiphy); 3797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3798 3799 if (!local->ops->set_rekey_data) 3800 return -EOPNOTSUPP; 3801 3802 drv_set_rekey_data(local, sdata, data); 3803 3804 return 0; 3805 } 3806 3807 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3808 const u8 *peer, u64 *cookie) 3809 { 3810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3811 struct ieee80211_local *local = sdata->local; 3812 struct ieee80211_qos_hdr *nullfunc; 3813 struct sk_buff *skb; 3814 int size = sizeof(*nullfunc); 3815 __le16 fc; 3816 bool qos; 3817 struct ieee80211_tx_info *info; 3818 struct sta_info *sta; 3819 struct ieee80211_chanctx_conf *chanctx_conf; 3820 enum nl80211_band band; 3821 int ret; 3822 3823 /* the lock is needed to assign the cookie later */ 3824 mutex_lock(&local->mtx); 3825 3826 rcu_read_lock(); 3827 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3828 if (WARN_ON(!chanctx_conf)) { 3829 ret = -EINVAL; 3830 goto unlock; 3831 } 3832 band = chanctx_conf->def.chan->band; 3833 sta = sta_info_get_bss(sdata, peer); 3834 if (sta) { 3835 qos = sta->sta.wme; 3836 } else { 3837 ret = -ENOLINK; 3838 goto unlock; 3839 } 3840 3841 if (qos) { 3842 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3843 IEEE80211_STYPE_QOS_NULLFUNC | 3844 IEEE80211_FCTL_FROMDS); 3845 } else { 3846 size -= 2; 3847 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3848 IEEE80211_STYPE_NULLFUNC | 3849 IEEE80211_FCTL_FROMDS); 3850 } 3851 3852 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3853 if (!skb) { 3854 ret = -ENOMEM; 3855 goto unlock; 3856 } 3857 3858 skb->dev = dev; 3859 3860 skb_reserve(skb, local->hw.extra_tx_headroom); 3861 3862 nullfunc = skb_put(skb, size); 3863 nullfunc->frame_control = fc; 3864 nullfunc->duration_id = 0; 3865 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3866 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3867 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3868 nullfunc->seq_ctrl = 0; 3869 3870 info = IEEE80211_SKB_CB(skb); 3871 3872 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3873 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3874 info->band = band; 3875 3876 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3877 skb->priority = 7; 3878 if (qos) 3879 nullfunc->qos_ctrl = cpu_to_le16(7); 3880 3881 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3882 if (ret) { 3883 kfree_skb(skb); 3884 goto unlock; 3885 } 3886 3887 local_bh_disable(); 3888 ieee80211_xmit(sdata, sta, skb); 3889 local_bh_enable(); 3890 3891 ret = 0; 3892 unlock: 3893 rcu_read_unlock(); 3894 mutex_unlock(&local->mtx); 3895 3896 return ret; 3897 } 3898 3899 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3900 struct wireless_dev *wdev, 3901 struct cfg80211_chan_def *chandef) 3902 { 3903 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3904 struct ieee80211_local *local = wiphy_priv(wiphy); 3905 struct ieee80211_chanctx_conf *chanctx_conf; 3906 int ret = -ENODATA; 3907 3908 rcu_read_lock(); 3909 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3910 if (chanctx_conf) { 3911 *chandef = sdata->vif.bss_conf.chandef; 3912 ret = 0; 3913 } else if (local->open_count > 0 && 3914 local->open_count == local->monitors && 3915 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3916 if (local->use_chanctx) 3917 *chandef = local->monitor_chandef; 3918 else 3919 *chandef = local->_oper_chandef; 3920 ret = 0; 3921 } 3922 rcu_read_unlock(); 3923 3924 return ret; 3925 } 3926 3927 #ifdef CONFIG_PM 3928 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3929 { 3930 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3931 } 3932 #endif 3933 3934 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3935 struct net_device *dev, 3936 struct cfg80211_qos_map *qos_map) 3937 { 3938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3939 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3940 3941 if (qos_map) { 3942 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3943 if (!new_qos_map) 3944 return -ENOMEM; 3945 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3946 } else { 3947 /* A NULL qos_map was passed to disable QoS mapping */ 3948 new_qos_map = NULL; 3949 } 3950 3951 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3952 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3953 if (old_qos_map) 3954 kfree_rcu(old_qos_map, rcu_head); 3955 3956 return 0; 3957 } 3958 3959 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3960 struct net_device *dev, 3961 struct cfg80211_chan_def *chandef) 3962 { 3963 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3964 int ret; 3965 u32 changed = 0; 3966 3967 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3968 if (ret == 0) 3969 ieee80211_bss_info_change_notify(sdata, changed); 3970 3971 return ret; 3972 } 3973 3974 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3975 u8 tsid, const u8 *peer, u8 up, 3976 u16 admitted_time) 3977 { 3978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3979 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3980 int ac = ieee802_1d_to_ac[up]; 3981 3982 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3983 return -EOPNOTSUPP; 3984 3985 if (!(sdata->wmm_acm & BIT(up))) 3986 return -EINVAL; 3987 3988 if (ifmgd->tx_tspec[ac].admitted_time) 3989 return -EBUSY; 3990 3991 if (admitted_time) { 3992 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3993 ifmgd->tx_tspec[ac].tsid = tsid; 3994 ifmgd->tx_tspec[ac].up = up; 3995 } 3996 3997 return 0; 3998 } 3999 4000 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4001 u8 tsid, const u8 *peer) 4002 { 4003 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4004 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4005 struct ieee80211_local *local = wiphy_priv(wiphy); 4006 int ac; 4007 4008 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4009 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4010 4011 /* skip unused entries */ 4012 if (!tx_tspec->admitted_time) 4013 continue; 4014 4015 if (tx_tspec->tsid != tsid) 4016 continue; 4017 4018 /* due to this new packets will be reassigned to non-ACM ACs */ 4019 tx_tspec->up = -1; 4020 4021 /* Make sure that all packets have been sent to avoid to 4022 * restore the QoS params on packets that are still on the 4023 * queues. 4024 */ 4025 synchronize_net(); 4026 ieee80211_flush_queues(local, sdata, false); 4027 4028 /* restore the normal QoS parameters 4029 * (unconditionally to avoid races) 4030 */ 4031 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4032 tx_tspec->downgraded = false; 4033 ieee80211_sta_handle_tspec_ac_params(sdata); 4034 4035 /* finally clear all the data */ 4036 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4037 4038 return 0; 4039 } 4040 4041 return -ENOENT; 4042 } 4043 4044 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4045 u8 inst_id, 4046 enum nl80211_nan_func_term_reason reason, 4047 gfp_t gfp) 4048 { 4049 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4050 struct cfg80211_nan_func *func; 4051 u64 cookie; 4052 4053 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4054 return; 4055 4056 spin_lock_bh(&sdata->u.nan.func_lock); 4057 4058 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4059 if (WARN_ON(!func)) { 4060 spin_unlock_bh(&sdata->u.nan.func_lock); 4061 return; 4062 } 4063 4064 cookie = func->cookie; 4065 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4066 4067 spin_unlock_bh(&sdata->u.nan.func_lock); 4068 4069 cfg80211_free_nan_func(func); 4070 4071 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4072 reason, cookie, gfp); 4073 } 4074 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4075 4076 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4077 struct cfg80211_nan_match_params *match, 4078 gfp_t gfp) 4079 { 4080 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4081 struct cfg80211_nan_func *func; 4082 4083 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4084 return; 4085 4086 spin_lock_bh(&sdata->u.nan.func_lock); 4087 4088 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4089 if (WARN_ON(!func)) { 4090 spin_unlock_bh(&sdata->u.nan.func_lock); 4091 return; 4092 } 4093 match->cookie = func->cookie; 4094 4095 spin_unlock_bh(&sdata->u.nan.func_lock); 4096 4097 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4098 } 4099 EXPORT_SYMBOL(ieee80211_nan_func_match); 4100 4101 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4102 struct net_device *dev, 4103 const bool enabled) 4104 { 4105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4106 4107 sdata->u.ap.multicast_to_unicast = enabled; 4108 4109 return 0; 4110 } 4111 4112 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4113 struct txq_info *txqi) 4114 { 4115 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4116 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4117 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4118 } 4119 4120 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4121 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4122 txqstats->backlog_packets = txqi->tin.backlog_packets; 4123 } 4124 4125 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4126 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4127 txqstats->flows = txqi->tin.flows; 4128 } 4129 4130 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4131 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4132 txqstats->drops = txqi->cstats.drop_count; 4133 } 4134 4135 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4136 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4137 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4138 } 4139 4140 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4141 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4142 txqstats->overlimit = txqi->tin.overlimit; 4143 } 4144 4145 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4146 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4147 txqstats->collisions = txqi->tin.collisions; 4148 } 4149 4150 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4151 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4152 txqstats->tx_bytes = txqi->tin.tx_bytes; 4153 } 4154 4155 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4156 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4157 txqstats->tx_packets = txqi->tin.tx_packets; 4158 } 4159 } 4160 4161 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4162 struct wireless_dev *wdev, 4163 struct cfg80211_txq_stats *txqstats) 4164 { 4165 struct ieee80211_local *local = wiphy_priv(wiphy); 4166 struct ieee80211_sub_if_data *sdata; 4167 int ret = 0; 4168 4169 if (!local->ops->wake_tx_queue) 4170 return 1; 4171 4172 spin_lock_bh(&local->fq.lock); 4173 rcu_read_lock(); 4174 4175 if (wdev) { 4176 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4177 if (!sdata->vif.txq) { 4178 ret = 1; 4179 goto out; 4180 } 4181 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4182 } else { 4183 /* phy stats */ 4184 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4185 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4186 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4187 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4188 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4189 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4190 txqstats->backlog_packets = local->fq.backlog; 4191 txqstats->backlog_bytes = local->fq.memory_usage; 4192 txqstats->overlimit = local->fq.overlimit; 4193 txqstats->overmemory = local->fq.overmemory; 4194 txqstats->collisions = local->fq.collisions; 4195 txqstats->max_flows = local->fq.flows_cnt; 4196 } 4197 4198 out: 4199 rcu_read_unlock(); 4200 spin_unlock_bh(&local->fq.lock); 4201 4202 return ret; 4203 } 4204 4205 static int 4206 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4207 struct net_device *dev, 4208 struct cfg80211_ftm_responder_stats *ftm_stats) 4209 { 4210 struct ieee80211_local *local = wiphy_priv(wiphy); 4211 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4212 4213 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4214 } 4215 4216 static int 4217 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4218 struct cfg80211_pmsr_request *request) 4219 { 4220 struct ieee80211_local *local = wiphy_priv(wiphy); 4221 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4222 4223 return drv_start_pmsr(local, sdata, request); 4224 } 4225 4226 static void 4227 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4228 struct cfg80211_pmsr_request *request) 4229 { 4230 struct ieee80211_local *local = wiphy_priv(wiphy); 4231 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4232 4233 return drv_abort_pmsr(local, sdata, request); 4234 } 4235 4236 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4237 struct net_device *dev, 4238 struct cfg80211_tid_config *tid_conf) 4239 { 4240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4241 struct sta_info *sta; 4242 int ret; 4243 4244 if (!sdata->local->ops->set_tid_config) 4245 return -EOPNOTSUPP; 4246 4247 if (!tid_conf->peer) 4248 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4249 4250 mutex_lock(&sdata->local->sta_mtx); 4251 sta = sta_info_get_bss(sdata, tid_conf->peer); 4252 if (!sta) { 4253 mutex_unlock(&sdata->local->sta_mtx); 4254 return -ENOENT; 4255 } 4256 4257 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4258 mutex_unlock(&sdata->local->sta_mtx); 4259 4260 return ret; 4261 } 4262 4263 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4264 struct net_device *dev, 4265 const u8 *peer, u8 tids) 4266 { 4267 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4268 struct sta_info *sta; 4269 int ret; 4270 4271 if (!sdata->local->ops->reset_tid_config) 4272 return -EOPNOTSUPP; 4273 4274 if (!peer) 4275 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4276 4277 mutex_lock(&sdata->local->sta_mtx); 4278 sta = sta_info_get_bss(sdata, peer); 4279 if (!sta) { 4280 mutex_unlock(&sdata->local->sta_mtx); 4281 return -ENOENT; 4282 } 4283 4284 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4285 mutex_unlock(&sdata->local->sta_mtx); 4286 4287 return ret; 4288 } 4289 4290 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4291 struct cfg80211_sar_specs *sar) 4292 { 4293 struct ieee80211_local *local = wiphy_priv(wiphy); 4294 4295 if (!local->ops->set_sar_specs) 4296 return -EOPNOTSUPP; 4297 4298 return local->ops->set_sar_specs(&local->hw, sar); 4299 } 4300 4301 static int 4302 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4303 u32 *changed) 4304 { 4305 switch (sdata->vif.type) { 4306 case NL80211_IFTYPE_AP: { 4307 int ret; 4308 4309 if (!sdata->u.ap.next_beacon) 4310 return -EINVAL; 4311 4312 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 4313 NULL, NULL); 4314 ieee80211_free_next_beacon(sdata); 4315 4316 if (ret < 0) 4317 return ret; 4318 4319 *changed |= ret; 4320 break; 4321 } 4322 default: 4323 WARN_ON_ONCE(1); 4324 return -EINVAL; 4325 } 4326 4327 return 0; 4328 } 4329 4330 static int 4331 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4332 struct cfg80211_color_change_settings *params, 4333 u32 *changed) 4334 { 4335 struct ieee80211_color_change_settings color_change = {}; 4336 int err; 4337 4338 switch (sdata->vif.type) { 4339 case NL80211_IFTYPE_AP: 4340 sdata->u.ap.next_beacon = 4341 cfg80211_beacon_dup(¶ms->beacon_next); 4342 if (!sdata->u.ap.next_beacon) 4343 return -ENOMEM; 4344 4345 if (params->count <= 1) 4346 break; 4347 4348 color_change.counter_offset_beacon = 4349 params->counter_offset_beacon; 4350 color_change.counter_offset_presp = 4351 params->counter_offset_presp; 4352 color_change.count = params->count; 4353 4354 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change, 4355 NULL, &color_change); 4356 if (err < 0) { 4357 ieee80211_free_next_beacon(sdata); 4358 return err; 4359 } 4360 *changed |= err; 4361 break; 4362 default: 4363 return -EOPNOTSUPP; 4364 } 4365 4366 return 0; 4367 } 4368 4369 static void 4370 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4371 u8 color, int enable, u32 changed) 4372 { 4373 sdata->vif.bss_conf.he_bss_color.color = color; 4374 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4375 changed |= BSS_CHANGED_HE_BSS_COLOR; 4376 4377 ieee80211_bss_info_change_notify(sdata, changed); 4378 4379 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4380 struct ieee80211_sub_if_data *child; 4381 4382 mutex_lock(&sdata->local->iflist_mtx); 4383 list_for_each_entry(child, &sdata->local->interfaces, list) { 4384 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4385 child->vif.bss_conf.he_bss_color.color = color; 4386 child->vif.bss_conf.he_bss_color.enabled = enable; 4387 ieee80211_bss_info_change_notify(child, 4388 BSS_CHANGED_HE_BSS_COLOR); 4389 } 4390 } 4391 mutex_unlock(&sdata->local->iflist_mtx); 4392 } 4393 } 4394 4395 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4396 { 4397 struct ieee80211_local *local = sdata->local; 4398 u32 changed = 0; 4399 int err; 4400 4401 sdata_assert_lock(sdata); 4402 lockdep_assert_held(&local->mtx); 4403 4404 sdata->vif.color_change_active = false; 4405 4406 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4407 if (err) { 4408 cfg80211_color_change_aborted_notify(sdata->dev); 4409 return err; 4410 } 4411 4412 ieee80211_color_change_bss_config_notify(sdata, 4413 sdata->vif.color_change_color, 4414 1, changed); 4415 cfg80211_color_change_notify(sdata->dev); 4416 4417 return 0; 4418 } 4419 4420 void ieee80211_color_change_finalize_work(struct work_struct *work) 4421 { 4422 struct ieee80211_sub_if_data *sdata = 4423 container_of(work, struct ieee80211_sub_if_data, 4424 color_change_finalize_work); 4425 struct ieee80211_local *local = sdata->local; 4426 4427 sdata_lock(sdata); 4428 mutex_lock(&local->mtx); 4429 4430 /* AP might have been stopped while waiting for the lock. */ 4431 if (!sdata->vif.color_change_active) 4432 goto unlock; 4433 4434 if (!ieee80211_sdata_running(sdata)) 4435 goto unlock; 4436 4437 ieee80211_color_change_finalize(sdata); 4438 4439 unlock: 4440 mutex_unlock(&local->mtx); 4441 sdata_unlock(sdata); 4442 } 4443 4444 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4445 { 4446 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4447 4448 ieee80211_queue_work(&sdata->local->hw, 4449 &sdata->color_change_finalize_work); 4450 } 4451 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4452 4453 void 4454 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4455 u64 color_bitmap) 4456 { 4457 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4458 4459 if (sdata->vif.color_change_active || sdata->vif.csa_active) 4460 return; 4461 4462 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap); 4463 } 4464 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); 4465 4466 static int 4467 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4468 struct cfg80211_color_change_settings *params) 4469 { 4470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4471 struct ieee80211_local *local = sdata->local; 4472 u32 changed = 0; 4473 int err; 4474 4475 sdata_assert_lock(sdata); 4476 4477 if (sdata->vif.bss_conf.nontransmitted) 4478 return -EINVAL; 4479 4480 mutex_lock(&local->mtx); 4481 4482 /* don't allow another color change if one is already active or if csa 4483 * is active 4484 */ 4485 if (sdata->vif.color_change_active || sdata->vif.csa_active) { 4486 err = -EBUSY; 4487 goto out; 4488 } 4489 4490 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4491 if (err) 4492 goto out; 4493 4494 sdata->vif.color_change_active = true; 4495 sdata->vif.color_change_color = params->color; 4496 4497 cfg80211_color_change_started_notify(sdata->dev, params->count); 4498 4499 if (changed) 4500 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4501 else 4502 /* if the beacon didn't change, we can finalize immediately */ 4503 ieee80211_color_change_finalize(sdata); 4504 4505 out: 4506 mutex_unlock(&local->mtx); 4507 4508 return err; 4509 } 4510 4511 static int 4512 ieee80211_set_radar_background(struct wiphy *wiphy, 4513 struct cfg80211_chan_def *chandef) 4514 { 4515 struct ieee80211_local *local = wiphy_priv(wiphy); 4516 4517 if (!local->ops->set_radar_background) 4518 return -EOPNOTSUPP; 4519 4520 return local->ops->set_radar_background(&local->hw, chandef); 4521 } 4522 4523 const struct cfg80211_ops mac80211_config_ops = { 4524 .add_virtual_intf = ieee80211_add_iface, 4525 .del_virtual_intf = ieee80211_del_iface, 4526 .change_virtual_intf = ieee80211_change_iface, 4527 .start_p2p_device = ieee80211_start_p2p_device, 4528 .stop_p2p_device = ieee80211_stop_p2p_device, 4529 .add_key = ieee80211_add_key, 4530 .del_key = ieee80211_del_key, 4531 .get_key = ieee80211_get_key, 4532 .set_default_key = ieee80211_config_default_key, 4533 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4534 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4535 .start_ap = ieee80211_start_ap, 4536 .change_beacon = ieee80211_change_beacon, 4537 .stop_ap = ieee80211_stop_ap, 4538 .add_station = ieee80211_add_station, 4539 .del_station = ieee80211_del_station, 4540 .change_station = ieee80211_change_station, 4541 .get_station = ieee80211_get_station, 4542 .dump_station = ieee80211_dump_station, 4543 .dump_survey = ieee80211_dump_survey, 4544 #ifdef CONFIG_MAC80211_MESH 4545 .add_mpath = ieee80211_add_mpath, 4546 .del_mpath = ieee80211_del_mpath, 4547 .change_mpath = ieee80211_change_mpath, 4548 .get_mpath = ieee80211_get_mpath, 4549 .dump_mpath = ieee80211_dump_mpath, 4550 .get_mpp = ieee80211_get_mpp, 4551 .dump_mpp = ieee80211_dump_mpp, 4552 .update_mesh_config = ieee80211_update_mesh_config, 4553 .get_mesh_config = ieee80211_get_mesh_config, 4554 .join_mesh = ieee80211_join_mesh, 4555 .leave_mesh = ieee80211_leave_mesh, 4556 #endif 4557 .join_ocb = ieee80211_join_ocb, 4558 .leave_ocb = ieee80211_leave_ocb, 4559 .change_bss = ieee80211_change_bss, 4560 .set_txq_params = ieee80211_set_txq_params, 4561 .set_monitor_channel = ieee80211_set_monitor_channel, 4562 .suspend = ieee80211_suspend, 4563 .resume = ieee80211_resume, 4564 .scan = ieee80211_scan, 4565 .abort_scan = ieee80211_abort_scan, 4566 .sched_scan_start = ieee80211_sched_scan_start, 4567 .sched_scan_stop = ieee80211_sched_scan_stop, 4568 .auth = ieee80211_auth, 4569 .assoc = ieee80211_assoc, 4570 .deauth = ieee80211_deauth, 4571 .disassoc = ieee80211_disassoc, 4572 .join_ibss = ieee80211_join_ibss, 4573 .leave_ibss = ieee80211_leave_ibss, 4574 .set_mcast_rate = ieee80211_set_mcast_rate, 4575 .set_wiphy_params = ieee80211_set_wiphy_params, 4576 .set_tx_power = ieee80211_set_tx_power, 4577 .get_tx_power = ieee80211_get_tx_power, 4578 .rfkill_poll = ieee80211_rfkill_poll, 4579 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4580 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4581 .set_power_mgmt = ieee80211_set_power_mgmt, 4582 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4583 .remain_on_channel = ieee80211_remain_on_channel, 4584 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4585 .mgmt_tx = ieee80211_mgmt_tx, 4586 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4587 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4588 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4589 .update_mgmt_frame_registrations = 4590 ieee80211_update_mgmt_frame_registrations, 4591 .set_antenna = ieee80211_set_antenna, 4592 .get_antenna = ieee80211_get_antenna, 4593 .set_rekey_data = ieee80211_set_rekey_data, 4594 .tdls_oper = ieee80211_tdls_oper, 4595 .tdls_mgmt = ieee80211_tdls_mgmt, 4596 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4597 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4598 .probe_client = ieee80211_probe_client, 4599 .set_noack_map = ieee80211_set_noack_map, 4600 #ifdef CONFIG_PM 4601 .set_wakeup = ieee80211_set_wakeup, 4602 #endif 4603 .get_channel = ieee80211_cfg_get_channel, 4604 .start_radar_detection = ieee80211_start_radar_detection, 4605 .end_cac = ieee80211_end_cac, 4606 .channel_switch = ieee80211_channel_switch, 4607 .set_qos_map = ieee80211_set_qos_map, 4608 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4609 .add_tx_ts = ieee80211_add_tx_ts, 4610 .del_tx_ts = ieee80211_del_tx_ts, 4611 .start_nan = ieee80211_start_nan, 4612 .stop_nan = ieee80211_stop_nan, 4613 .nan_change_conf = ieee80211_nan_change_conf, 4614 .add_nan_func = ieee80211_add_nan_func, 4615 .del_nan_func = ieee80211_del_nan_func, 4616 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4617 .tx_control_port = ieee80211_tx_control_port, 4618 .get_txq_stats = ieee80211_get_txq_stats, 4619 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4620 .start_pmsr = ieee80211_start_pmsr, 4621 .abort_pmsr = ieee80211_abort_pmsr, 4622 .probe_mesh_link = ieee80211_probe_mesh_link, 4623 .set_tid_config = ieee80211_set_tid_config, 4624 .reset_tid_config = ieee80211_reset_tid_config, 4625 .set_sar_specs = ieee80211_set_sar_specs, 4626 .color_change = ieee80211_color_change, 4627 .set_radar_background = ieee80211_set_radar_background, 4628 }; 4629