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) 2018-2021 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 const struct ieee80211_cipher_scheme *cs = NULL; 442 struct ieee80211_key *key; 443 int err; 444 445 if (!ieee80211_sdata_running(sdata)) 446 return -ENETDOWN; 447 448 if (pairwise && params->mode == NL80211_KEY_SET_TX) 449 return ieee80211_set_tx(sdata, mac_addr, key_idx); 450 451 /* reject WEP and TKIP keys if WEP failed to initialize */ 452 switch (params->cipher) { 453 case WLAN_CIPHER_SUITE_WEP40: 454 case WLAN_CIPHER_SUITE_TKIP: 455 case WLAN_CIPHER_SUITE_WEP104: 456 if (WARN_ON_ONCE(fips_enabled)) 457 return -EINVAL; 458 break; 459 case WLAN_CIPHER_SUITE_CCMP: 460 case WLAN_CIPHER_SUITE_CCMP_256: 461 case WLAN_CIPHER_SUITE_AES_CMAC: 462 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 463 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 464 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 465 case WLAN_CIPHER_SUITE_GCMP: 466 case WLAN_CIPHER_SUITE_GCMP_256: 467 break; 468 default: 469 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 470 break; 471 } 472 473 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 474 params->key, params->seq_len, params->seq, 475 cs); 476 if (IS_ERR(key)) 477 return PTR_ERR(key); 478 479 if (pairwise) 480 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 481 482 if (params->mode == NL80211_KEY_NO_TX) 483 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 484 485 mutex_lock(&local->sta_mtx); 486 487 if (mac_addr) { 488 sta = sta_info_get_bss(sdata, mac_addr); 489 /* 490 * The ASSOC test makes sure the driver is ready to 491 * receive the key. When wpa_supplicant has roamed 492 * using FT, it attempts to set the key before 493 * association has completed, this rejects that attempt 494 * so it will set the key again after association. 495 * 496 * TODO: accept the key if we have a station entry and 497 * add it to the device after the station. 498 */ 499 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 500 ieee80211_key_free_unused(key); 501 err = -ENOENT; 502 goto out_unlock; 503 } 504 } 505 506 switch (sdata->vif.type) { 507 case NL80211_IFTYPE_STATION: 508 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 509 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 510 break; 511 case NL80211_IFTYPE_AP: 512 case NL80211_IFTYPE_AP_VLAN: 513 /* Keys without a station are used for TX only */ 514 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 515 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 516 break; 517 case NL80211_IFTYPE_ADHOC: 518 /* no MFP (yet) */ 519 break; 520 case NL80211_IFTYPE_MESH_POINT: 521 #ifdef CONFIG_MAC80211_MESH 522 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 523 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 524 break; 525 #endif 526 case NL80211_IFTYPE_WDS: 527 case NL80211_IFTYPE_MONITOR: 528 case NL80211_IFTYPE_P2P_DEVICE: 529 case NL80211_IFTYPE_NAN: 530 case NL80211_IFTYPE_UNSPECIFIED: 531 case NUM_NL80211_IFTYPES: 532 case NL80211_IFTYPE_P2P_CLIENT: 533 case NL80211_IFTYPE_P2P_GO: 534 case NL80211_IFTYPE_OCB: 535 /* shouldn't happen */ 536 WARN_ON_ONCE(1); 537 break; 538 } 539 540 if (sta) 541 sta->cipher_scheme = cs; 542 543 err = ieee80211_key_link(key, sdata, sta); 544 545 out_unlock: 546 mutex_unlock(&local->sta_mtx); 547 548 return err; 549 } 550 551 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 552 u8 key_idx, bool pairwise, const u8 *mac_addr) 553 { 554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 555 struct ieee80211_local *local = sdata->local; 556 struct sta_info *sta; 557 struct ieee80211_key *key = NULL; 558 int ret; 559 560 mutex_lock(&local->sta_mtx); 561 mutex_lock(&local->key_mtx); 562 563 if (mac_addr) { 564 ret = -ENOENT; 565 566 sta = sta_info_get_bss(sdata, mac_addr); 567 if (!sta) 568 goto out_unlock; 569 570 if (pairwise) 571 key = key_mtx_dereference(local, sta->ptk[key_idx]); 572 else 573 key = key_mtx_dereference(local, 574 sta->deflink.gtk[key_idx]); 575 } else 576 key = key_mtx_dereference(local, sdata->keys[key_idx]); 577 578 if (!key) { 579 ret = -ENOENT; 580 goto out_unlock; 581 } 582 583 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 584 585 ret = 0; 586 out_unlock: 587 mutex_unlock(&local->key_mtx); 588 mutex_unlock(&local->sta_mtx); 589 590 return ret; 591 } 592 593 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 594 u8 key_idx, bool pairwise, const u8 *mac_addr, 595 void *cookie, 596 void (*callback)(void *cookie, 597 struct key_params *params)) 598 { 599 struct ieee80211_sub_if_data *sdata; 600 struct sta_info *sta = NULL; 601 u8 seq[6] = {0}; 602 struct key_params params; 603 struct ieee80211_key *key = NULL; 604 u64 pn64; 605 u32 iv32; 606 u16 iv16; 607 int err = -ENOENT; 608 struct ieee80211_key_seq kseq = {}; 609 610 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 611 612 rcu_read_lock(); 613 614 if (mac_addr) { 615 sta = sta_info_get_bss(sdata, mac_addr); 616 if (!sta) 617 goto out; 618 619 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 620 key = rcu_dereference(sta->ptk[key_idx]); 621 else if (!pairwise && 622 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 623 NUM_DEFAULT_BEACON_KEYS) 624 key = rcu_dereference(sta->deflink.gtk[key_idx]); 625 } else 626 key = rcu_dereference(sdata->keys[key_idx]); 627 628 if (!key) 629 goto out; 630 631 memset(¶ms, 0, sizeof(params)); 632 633 params.cipher = key->conf.cipher; 634 635 switch (key->conf.cipher) { 636 case WLAN_CIPHER_SUITE_TKIP: 637 pn64 = atomic64_read(&key->conf.tx_pn); 638 iv32 = TKIP_PN_TO_IV32(pn64); 639 iv16 = TKIP_PN_TO_IV16(pn64); 640 641 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 642 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 643 drv_get_key_seq(sdata->local, key, &kseq); 644 iv32 = kseq.tkip.iv32; 645 iv16 = kseq.tkip.iv16; 646 } 647 648 seq[0] = iv16 & 0xff; 649 seq[1] = (iv16 >> 8) & 0xff; 650 seq[2] = iv32 & 0xff; 651 seq[3] = (iv32 >> 8) & 0xff; 652 seq[4] = (iv32 >> 16) & 0xff; 653 seq[5] = (iv32 >> 24) & 0xff; 654 params.seq = seq; 655 params.seq_len = 6; 656 break; 657 case WLAN_CIPHER_SUITE_CCMP: 658 case WLAN_CIPHER_SUITE_CCMP_256: 659 case WLAN_CIPHER_SUITE_AES_CMAC: 660 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 661 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 662 offsetof(typeof(kseq), aes_cmac)); 663 fallthrough; 664 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 665 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 666 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 667 offsetof(typeof(kseq), aes_gmac)); 668 fallthrough; 669 case WLAN_CIPHER_SUITE_GCMP: 670 case WLAN_CIPHER_SUITE_GCMP_256: 671 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 672 offsetof(typeof(kseq), gcmp)); 673 674 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 675 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 676 drv_get_key_seq(sdata->local, key, &kseq); 677 memcpy(seq, kseq.ccmp.pn, 6); 678 } else { 679 pn64 = atomic64_read(&key->conf.tx_pn); 680 seq[0] = pn64; 681 seq[1] = pn64 >> 8; 682 seq[2] = pn64 >> 16; 683 seq[3] = pn64 >> 24; 684 seq[4] = pn64 >> 32; 685 seq[5] = pn64 >> 40; 686 } 687 params.seq = seq; 688 params.seq_len = 6; 689 break; 690 default: 691 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 692 break; 693 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 694 break; 695 drv_get_key_seq(sdata->local, key, &kseq); 696 params.seq = kseq.hw.seq; 697 params.seq_len = kseq.hw.seq_len; 698 break; 699 } 700 701 params.key = key->conf.key; 702 params.key_len = key->conf.keylen; 703 704 callback(cookie, ¶ms); 705 err = 0; 706 707 out: 708 rcu_read_unlock(); 709 return err; 710 } 711 712 static int ieee80211_config_default_key(struct wiphy *wiphy, 713 struct net_device *dev, 714 u8 key_idx, bool uni, 715 bool multi) 716 { 717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 718 719 ieee80211_set_default_key(sdata, key_idx, uni, multi); 720 721 return 0; 722 } 723 724 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 725 struct net_device *dev, 726 u8 key_idx) 727 { 728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 729 730 ieee80211_set_default_mgmt_key(sdata, key_idx); 731 732 return 0; 733 } 734 735 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 736 struct net_device *dev, 737 u8 key_idx) 738 { 739 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 740 741 ieee80211_set_default_beacon_key(sdata, key_idx); 742 743 return 0; 744 } 745 746 void sta_set_rate_info_tx(struct sta_info *sta, 747 const struct ieee80211_tx_rate *rate, 748 struct rate_info *rinfo) 749 { 750 rinfo->flags = 0; 751 if (rate->flags & IEEE80211_TX_RC_MCS) { 752 rinfo->flags |= RATE_INFO_FLAGS_MCS; 753 rinfo->mcs = rate->idx; 754 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 755 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 756 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 757 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 758 } else { 759 struct ieee80211_supported_band *sband; 760 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 761 u16 brate; 762 763 sband = ieee80211_get_sband(sta->sdata); 764 WARN_ON_ONCE(sband && !sband->bitrates); 765 if (sband && sband->bitrates) { 766 brate = sband->bitrates[rate->idx].bitrate; 767 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 768 } 769 } 770 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 771 rinfo->bw = RATE_INFO_BW_40; 772 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 773 rinfo->bw = RATE_INFO_BW_80; 774 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 775 rinfo->bw = RATE_INFO_BW_160; 776 else 777 rinfo->bw = RATE_INFO_BW_20; 778 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 779 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 780 } 781 782 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 783 int idx, u8 *mac, struct station_info *sinfo) 784 { 785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 786 struct ieee80211_local *local = sdata->local; 787 struct sta_info *sta; 788 int ret = -ENOENT; 789 790 mutex_lock(&local->sta_mtx); 791 792 sta = sta_info_get_by_idx(sdata, idx); 793 if (sta) { 794 ret = 0; 795 memcpy(mac, sta->sta.addr, ETH_ALEN); 796 sta_set_sinfo(sta, sinfo, true); 797 } 798 799 mutex_unlock(&local->sta_mtx); 800 801 return ret; 802 } 803 804 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 805 int idx, struct survey_info *survey) 806 { 807 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 808 809 return drv_get_survey(local, idx, survey); 810 } 811 812 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 813 const u8 *mac, struct station_info *sinfo) 814 { 815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 816 struct ieee80211_local *local = sdata->local; 817 struct sta_info *sta; 818 int ret = -ENOENT; 819 820 mutex_lock(&local->sta_mtx); 821 822 sta = sta_info_get_bss(sdata, mac); 823 if (sta) { 824 ret = 0; 825 sta_set_sinfo(sta, sinfo, true); 826 } 827 828 mutex_unlock(&local->sta_mtx); 829 830 return ret; 831 } 832 833 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 834 struct cfg80211_chan_def *chandef) 835 { 836 struct ieee80211_local *local = wiphy_priv(wiphy); 837 struct ieee80211_sub_if_data *sdata; 838 int ret = 0; 839 840 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 841 return 0; 842 843 mutex_lock(&local->mtx); 844 if (local->use_chanctx) { 845 sdata = wiphy_dereference(local->hw.wiphy, 846 local->monitor_sdata); 847 if (sdata) { 848 ieee80211_vif_release_channel(sdata); 849 ret = ieee80211_vif_use_channel(sdata, chandef, 850 IEEE80211_CHANCTX_EXCLUSIVE); 851 } 852 } else if (local->open_count == local->monitors) { 853 local->_oper_chandef = *chandef; 854 ieee80211_hw_config(local, 0); 855 } 856 857 if (ret == 0) 858 local->monitor_chandef = *chandef; 859 mutex_unlock(&local->mtx); 860 861 return ret; 862 } 863 864 static int 865 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 866 const u8 *resp, size_t resp_len, 867 const struct ieee80211_csa_settings *csa, 868 const struct ieee80211_color_change_settings *cca) 869 { 870 struct probe_resp *new, *old; 871 872 if (!resp || !resp_len) 873 return 1; 874 875 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 876 877 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 878 if (!new) 879 return -ENOMEM; 880 881 new->len = resp_len; 882 memcpy(new->data, resp, resp_len); 883 884 if (csa) 885 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 886 csa->n_counter_offsets_presp * 887 sizeof(new->cntdwn_counter_offsets[0])); 888 else if (cca) 889 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 890 891 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 892 if (old) 893 kfree_rcu(old, rcu_head); 894 895 return 0; 896 } 897 898 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 899 struct cfg80211_fils_discovery *params) 900 { 901 struct fils_discovery_data *new, *old = NULL; 902 struct ieee80211_fils_discovery *fd; 903 904 if (!params->tmpl || !params->tmpl_len) 905 return -EINVAL; 906 907 fd = &sdata->vif.bss_conf.fils_discovery; 908 fd->min_interval = params->min_interval; 909 fd->max_interval = params->max_interval; 910 911 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata); 912 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 913 if (!new) 914 return -ENOMEM; 915 new->len = params->tmpl_len; 916 memcpy(new->data, params->tmpl, params->tmpl_len); 917 rcu_assign_pointer(sdata->u.ap.fils_discovery, new); 918 919 if (old) 920 kfree_rcu(old, rcu_head); 921 922 return 0; 923 } 924 925 static int 926 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 927 struct cfg80211_unsol_bcast_probe_resp *params) 928 { 929 struct unsol_bcast_probe_resp_data *new, *old = NULL; 930 931 if (!params->tmpl || !params->tmpl_len) 932 return -EINVAL; 933 934 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); 935 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 936 if (!new) 937 return -ENOMEM; 938 new->len = params->tmpl_len; 939 memcpy(new->data, params->tmpl, params->tmpl_len); 940 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); 941 942 if (old) 943 kfree_rcu(old, rcu_head); 944 945 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = 946 params->interval; 947 948 return 0; 949 } 950 951 static int ieee80211_set_ftm_responder_params( 952 struct ieee80211_sub_if_data *sdata, 953 const u8 *lci, size_t lci_len, 954 const u8 *civicloc, size_t civicloc_len) 955 { 956 struct ieee80211_ftm_responder_params *new, *old; 957 struct ieee80211_bss_conf *bss_conf; 958 u8 *pos; 959 int len; 960 961 if (!lci_len && !civicloc_len) 962 return 0; 963 964 bss_conf = &sdata->vif.bss_conf; 965 old = bss_conf->ftmr_params; 966 len = lci_len + civicloc_len; 967 968 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 969 if (!new) 970 return -ENOMEM; 971 972 pos = (u8 *)(new + 1); 973 if (lci_len) { 974 new->lci_len = lci_len; 975 new->lci = pos; 976 memcpy(pos, lci, lci_len); 977 pos += lci_len; 978 } 979 980 if (civicloc_len) { 981 new->civicloc_len = civicloc_len; 982 new->civicloc = pos; 983 memcpy(pos, civicloc, civicloc_len); 984 pos += civicloc_len; 985 } 986 987 bss_conf->ftmr_params = new; 988 kfree(old); 989 990 return 0; 991 } 992 993 static int 994 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 995 struct cfg80211_mbssid_elems *src) 996 { 997 int i, offset = 0; 998 999 for (i = 0; i < src->cnt; i++) { 1000 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1001 dst->elem[i].len = src->elem[i].len; 1002 dst->elem[i].data = pos + offset; 1003 offset += dst->elem[i].len; 1004 } 1005 dst->cnt = src->cnt; 1006 1007 return offset; 1008 } 1009 1010 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1011 struct cfg80211_beacon_data *params, 1012 const struct ieee80211_csa_settings *csa, 1013 const struct ieee80211_color_change_settings *cca) 1014 { 1015 struct cfg80211_mbssid_elems *mbssid = NULL; 1016 struct beacon_data *new, *old; 1017 int new_head_len, new_tail_len; 1018 int size, err; 1019 u32 changed = BSS_CHANGED_BEACON; 1020 1021 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1022 1023 1024 /* Need to have a beacon head if we don't have one yet */ 1025 if (!params->head && !old) 1026 return -EINVAL; 1027 1028 /* new or old head? */ 1029 if (params->head) 1030 new_head_len = params->head_len; 1031 else 1032 new_head_len = old->head_len; 1033 1034 /* new or old tail? */ 1035 if (params->tail || !old) 1036 /* params->tail_len will be zero for !params->tail */ 1037 new_tail_len = params->tail_len; 1038 else 1039 new_tail_len = old->tail_len; 1040 1041 size = sizeof(*new) + new_head_len + new_tail_len; 1042 1043 /* new or old multiple BSSID elements? */ 1044 if (params->mbssid_ies) { 1045 mbssid = params->mbssid_ies; 1046 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1047 size += ieee80211_get_mbssid_beacon_len(mbssid); 1048 } else if (old && old->mbssid_ies) { 1049 mbssid = old->mbssid_ies; 1050 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1051 size += ieee80211_get_mbssid_beacon_len(mbssid); 1052 } 1053 1054 new = kzalloc(size, GFP_KERNEL); 1055 if (!new) 1056 return -ENOMEM; 1057 1058 /* start filling the new info now */ 1059 1060 /* 1061 * pointers go into the block we allocated, 1062 * memory is | beacon_data | head | tail | mbssid_ies 1063 */ 1064 new->head = ((u8 *) new) + sizeof(*new); 1065 new->tail = new->head + new_head_len; 1066 new->head_len = new_head_len; 1067 new->tail_len = new_tail_len; 1068 /* copy in optional mbssid_ies */ 1069 if (mbssid) { 1070 u8 *pos = new->tail + new->tail_len; 1071 1072 new->mbssid_ies = (void *)pos; 1073 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1074 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1075 /* update bssid_indicator */ 1076 sdata->vif.bss_conf.bssid_indicator = 1077 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1078 } 1079 1080 if (csa) { 1081 new->cntdwn_current_counter = csa->count; 1082 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1083 csa->n_counter_offsets_beacon * 1084 sizeof(new->cntdwn_counter_offsets[0])); 1085 } else if (cca) { 1086 new->cntdwn_current_counter = cca->count; 1087 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1088 } 1089 1090 /* copy in head */ 1091 if (params->head) 1092 memcpy(new->head, params->head, new_head_len); 1093 else 1094 memcpy(new->head, old->head, new_head_len); 1095 1096 /* copy in optional tail */ 1097 if (params->tail) 1098 memcpy(new->tail, params->tail, new_tail_len); 1099 else 1100 if (old) 1101 memcpy(new->tail, old->tail, new_tail_len); 1102 1103 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1104 params->probe_resp_len, csa, cca); 1105 if (err < 0) { 1106 kfree(new); 1107 return err; 1108 } 1109 if (err == 0) 1110 changed |= BSS_CHANGED_AP_PROBE_RESP; 1111 1112 if (params->ftm_responder != -1) { 1113 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 1114 err = ieee80211_set_ftm_responder_params(sdata, 1115 params->lci, 1116 params->lci_len, 1117 params->civicloc, 1118 params->civicloc_len); 1119 1120 if (err < 0) { 1121 kfree(new); 1122 return err; 1123 } 1124 1125 changed |= BSS_CHANGED_FTM_RESPONDER; 1126 } 1127 1128 rcu_assign_pointer(sdata->u.ap.beacon, new); 1129 1130 if (old) 1131 kfree_rcu(old, rcu_head); 1132 1133 return changed; 1134 } 1135 1136 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1137 struct cfg80211_ap_settings *params) 1138 { 1139 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1140 struct ieee80211_local *local = sdata->local; 1141 struct beacon_data *old; 1142 struct ieee80211_sub_if_data *vlan; 1143 u32 changed = BSS_CHANGED_BEACON_INT | 1144 BSS_CHANGED_BEACON_ENABLED | 1145 BSS_CHANGED_BEACON | 1146 BSS_CHANGED_SSID | 1147 BSS_CHANGED_P2P_PS | 1148 BSS_CHANGED_TXPOWER | 1149 BSS_CHANGED_TWT; 1150 int i, err; 1151 int prev_beacon_int; 1152 1153 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1154 if (old) 1155 return -EALREADY; 1156 1157 if (params->smps_mode != NL80211_SMPS_OFF) 1158 return -ENOTSUPP; 1159 1160 sdata->smps_mode = IEEE80211_SMPS_OFF; 1161 1162 sdata->needed_rx_chains = sdata->local->rx_chains; 1163 1164 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1165 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1166 1167 if (params->he_cap && params->he_oper) { 1168 sdata->vif.bss_conf.he_support = true; 1169 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1170 le32_get_bits(params->he_oper->he_oper_params, 1171 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1172 sdata->vif.bss_conf.frame_time_rts_th = 1173 le32_get_bits(params->he_oper->he_oper_params, 1174 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1175 changed |= BSS_CHANGED_HE_OBSS_PD; 1176 1177 if (params->beacon.he_bss_color.enabled) 1178 changed |= BSS_CHANGED_HE_BSS_COLOR; 1179 } 1180 1181 if (sdata->vif.type == NL80211_IFTYPE_AP && 1182 params->mbssid_config.tx_wdev) { 1183 err = ieee80211_set_ap_mbssid_options(sdata, 1184 params->mbssid_config); 1185 if (err) 1186 return err; 1187 } 1188 1189 mutex_lock(&local->mtx); 1190 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1191 IEEE80211_CHANCTX_SHARED); 1192 if (!err) 1193 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1194 mutex_unlock(&local->mtx); 1195 if (err) { 1196 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1197 return err; 1198 } 1199 1200 /* 1201 * Apply control port protocol, this allows us to 1202 * not encrypt dynamic WEP control frames. 1203 */ 1204 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1205 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1206 sdata->control_port_over_nl80211 = 1207 params->crypto.control_port_over_nl80211; 1208 sdata->control_port_no_preauth = 1209 params->crypto.control_port_no_preauth; 1210 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1211 ¶ms->crypto, 1212 sdata->vif.type); 1213 1214 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1215 vlan->control_port_protocol = 1216 params->crypto.control_port_ethertype; 1217 vlan->control_port_no_encrypt = 1218 params->crypto.control_port_no_encrypt; 1219 vlan->control_port_over_nl80211 = 1220 params->crypto.control_port_over_nl80211; 1221 vlan->control_port_no_preauth = 1222 params->crypto.control_port_no_preauth; 1223 vlan->encrypt_headroom = 1224 ieee80211_cs_headroom(sdata->local, 1225 ¶ms->crypto, 1226 vlan->vif.type); 1227 } 1228 1229 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1230 sdata->vif.bss_conf.enable_beacon = true; 1231 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1232 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1233 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd; 1234 sdata->vif.bss_conf.he_bss_color = params->beacon.he_bss_color; 1235 sdata->vif.bss_conf.s1g = params->chandef.chan->band == 1236 NL80211_BAND_S1GHZ; 1237 1238 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1239 if (params->ssid_len) 1240 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1241 params->ssid_len); 1242 sdata->vif.bss_conf.hidden_ssid = 1243 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1244 1245 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1246 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1247 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1248 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1249 if (params->p2p_opp_ps) 1250 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1251 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1252 1253 sdata->beacon_rate_set = false; 1254 if (wiphy_ext_feature_isset(local->hw.wiphy, 1255 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1256 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1257 sdata->beacon_rateidx_mask[i] = 1258 params->beacon_rate.control[i].legacy; 1259 if (sdata->beacon_rateidx_mask[i]) 1260 sdata->beacon_rate_set = true; 1261 } 1262 } 1263 1264 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1265 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate; 1266 1267 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL); 1268 if (err < 0) 1269 goto error; 1270 changed |= err; 1271 1272 if (params->fils_discovery.max_interval) { 1273 err = ieee80211_set_fils_discovery(sdata, 1274 ¶ms->fils_discovery); 1275 if (err < 0) 1276 goto error; 1277 changed |= BSS_CHANGED_FILS_DISCOVERY; 1278 } 1279 1280 if (params->unsol_bcast_probe_resp.interval) { 1281 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1282 ¶ms->unsol_bcast_probe_resp); 1283 if (err < 0) 1284 goto error; 1285 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1286 } 1287 1288 err = drv_start_ap(sdata->local, sdata); 1289 if (err) { 1290 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1291 1292 if (old) 1293 kfree_rcu(old, rcu_head); 1294 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1295 goto error; 1296 } 1297 1298 ieee80211_recalc_dtim(local, sdata); 1299 ieee80211_bss_info_change_notify(sdata, changed); 1300 1301 netif_carrier_on(dev); 1302 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1303 netif_carrier_on(vlan->dev); 1304 1305 return 0; 1306 1307 error: 1308 mutex_lock(&local->mtx); 1309 ieee80211_vif_release_channel(sdata); 1310 mutex_unlock(&local->mtx); 1311 1312 return err; 1313 } 1314 1315 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1316 struct cfg80211_beacon_data *params) 1317 { 1318 struct ieee80211_sub_if_data *sdata; 1319 struct ieee80211_bss_conf *bss_conf; 1320 struct beacon_data *old; 1321 int err; 1322 1323 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1324 sdata_assert_lock(sdata); 1325 1326 /* don't allow changing the beacon while a countdown is in place - offset 1327 * of channel switch counter may change 1328 */ 1329 if (sdata->vif.csa_active || sdata->vif.color_change_active) 1330 return -EBUSY; 1331 1332 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1333 if (!old) 1334 return -ENOENT; 1335 1336 err = ieee80211_assign_beacon(sdata, params, NULL, NULL); 1337 if (err < 0) 1338 return err; 1339 1340 bss_conf = &sdata->vif.bss_conf; 1341 if (params->he_bss_color_valid && 1342 params->he_bss_color.enabled != bss_conf->he_bss_color.enabled) { 1343 bss_conf->he_bss_color.enabled = params->he_bss_color.enabled; 1344 err |= BSS_CHANGED_HE_BSS_COLOR; 1345 } 1346 1347 ieee80211_bss_info_change_notify(sdata, err); 1348 return 0; 1349 } 1350 1351 static void ieee80211_free_next_beacon(struct ieee80211_sub_if_data *sdata) 1352 { 1353 if (!sdata->u.ap.next_beacon) 1354 return; 1355 1356 kfree(sdata->u.ap.next_beacon->mbssid_ies); 1357 kfree(sdata->u.ap.next_beacon); 1358 sdata->u.ap.next_beacon = NULL; 1359 } 1360 1361 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1362 { 1363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1364 struct ieee80211_sub_if_data *vlan; 1365 struct ieee80211_local *local = sdata->local; 1366 struct beacon_data *old_beacon; 1367 struct probe_resp *old_probe_resp; 1368 struct fils_discovery_data *old_fils_discovery; 1369 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1370 struct cfg80211_chan_def chandef; 1371 1372 sdata_assert_lock(sdata); 1373 1374 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1375 if (!old_beacon) 1376 return -ENOENT; 1377 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1378 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, 1379 sdata); 1380 old_unsol_bcast_probe_resp = 1381 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, 1382 sdata); 1383 1384 /* abort any running channel switch */ 1385 mutex_lock(&local->mtx); 1386 sdata->vif.csa_active = false; 1387 if (sdata->csa_block_tx) { 1388 ieee80211_wake_vif_queues(local, sdata, 1389 IEEE80211_QUEUE_STOP_REASON_CSA); 1390 sdata->csa_block_tx = false; 1391 } 1392 1393 mutex_unlock(&local->mtx); 1394 1395 ieee80211_free_next_beacon(sdata); 1396 1397 /* turn off carrier for this interface and dependent VLANs */ 1398 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1399 netif_carrier_off(vlan->dev); 1400 netif_carrier_off(dev); 1401 1402 /* remove beacon and probe response */ 1403 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1404 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1405 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); 1406 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); 1407 kfree_rcu(old_beacon, rcu_head); 1408 if (old_probe_resp) 1409 kfree_rcu(old_probe_resp, rcu_head); 1410 if (old_fils_discovery) 1411 kfree_rcu(old_fils_discovery, rcu_head); 1412 if (old_unsol_bcast_probe_resp) 1413 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1414 1415 kfree(sdata->vif.bss_conf.ftmr_params); 1416 sdata->vif.bss_conf.ftmr_params = NULL; 1417 1418 __sta_info_flush(sdata, true); 1419 ieee80211_free_keys(sdata, true); 1420 1421 sdata->vif.bss_conf.enable_beacon = false; 1422 sdata->beacon_rate_set = false; 1423 sdata->vif.bss_conf.ssid_len = 0; 1424 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1425 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1426 1427 if (sdata->wdev.cac_started) { 1428 chandef = sdata->vif.bss_conf.chandef; 1429 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1430 cfg80211_cac_event(sdata->dev, &chandef, 1431 NL80211_RADAR_CAC_ABORTED, 1432 GFP_KERNEL); 1433 } 1434 1435 drv_stop_ap(sdata->local, sdata); 1436 1437 /* free all potentially still buffered bcast frames */ 1438 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1439 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1440 1441 mutex_lock(&local->mtx); 1442 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1443 ieee80211_vif_release_channel(sdata); 1444 mutex_unlock(&local->mtx); 1445 1446 return 0; 1447 } 1448 1449 static int sta_apply_auth_flags(struct ieee80211_local *local, 1450 struct sta_info *sta, 1451 u32 mask, u32 set) 1452 { 1453 int ret; 1454 1455 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1456 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1457 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1458 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1459 if (ret) 1460 return ret; 1461 } 1462 1463 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1464 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1465 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1466 /* 1467 * When peer becomes associated, init rate control as 1468 * well. Some drivers require rate control initialized 1469 * before drv_sta_state() is called. 1470 */ 1471 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1472 rate_control_rate_init(sta); 1473 1474 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1475 if (ret) 1476 return ret; 1477 } 1478 1479 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1480 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1481 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1482 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1483 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1484 else 1485 ret = 0; 1486 if (ret) 1487 return ret; 1488 } 1489 1490 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1491 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1492 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1493 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1494 if (ret) 1495 return ret; 1496 } 1497 1498 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1499 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1500 test_sta_flag(sta, WLAN_STA_AUTH)) { 1501 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1502 if (ret) 1503 return ret; 1504 } 1505 1506 return 0; 1507 } 1508 1509 static void sta_apply_mesh_params(struct ieee80211_local *local, 1510 struct sta_info *sta, 1511 struct station_parameters *params) 1512 { 1513 #ifdef CONFIG_MAC80211_MESH 1514 struct ieee80211_sub_if_data *sdata = sta->sdata; 1515 u32 changed = 0; 1516 1517 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1518 switch (params->plink_state) { 1519 case NL80211_PLINK_ESTAB: 1520 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1521 changed = mesh_plink_inc_estab_count(sdata); 1522 sta->mesh->plink_state = params->plink_state; 1523 sta->mesh->aid = params->peer_aid; 1524 1525 ieee80211_mps_sta_status_update(sta); 1526 changed |= ieee80211_mps_set_sta_local_pm(sta, 1527 sdata->u.mesh.mshcfg.power_mode); 1528 1529 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1530 /* init at low value */ 1531 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1532 1533 break; 1534 case NL80211_PLINK_LISTEN: 1535 case NL80211_PLINK_BLOCKED: 1536 case NL80211_PLINK_OPN_SNT: 1537 case NL80211_PLINK_OPN_RCVD: 1538 case NL80211_PLINK_CNF_RCVD: 1539 case NL80211_PLINK_HOLDING: 1540 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1541 changed = mesh_plink_dec_estab_count(sdata); 1542 sta->mesh->plink_state = params->plink_state; 1543 1544 ieee80211_mps_sta_status_update(sta); 1545 changed |= ieee80211_mps_set_sta_local_pm(sta, 1546 NL80211_MESH_POWER_UNKNOWN); 1547 break; 1548 default: 1549 /* nothing */ 1550 break; 1551 } 1552 } 1553 1554 switch (params->plink_action) { 1555 case NL80211_PLINK_ACTION_NO_ACTION: 1556 /* nothing */ 1557 break; 1558 case NL80211_PLINK_ACTION_OPEN: 1559 changed |= mesh_plink_open(sta); 1560 break; 1561 case NL80211_PLINK_ACTION_BLOCK: 1562 changed |= mesh_plink_block(sta); 1563 break; 1564 } 1565 1566 if (params->local_pm) 1567 changed |= ieee80211_mps_set_sta_local_pm(sta, 1568 params->local_pm); 1569 1570 ieee80211_mbss_info_change_notify(sdata, changed); 1571 #endif 1572 } 1573 1574 static void sta_apply_airtime_params(struct ieee80211_local *local, 1575 struct sta_info *sta, 1576 struct station_parameters *params) 1577 { 1578 u8 ac; 1579 1580 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1581 struct airtime_sched_info *air_sched = &local->airtime[ac]; 1582 struct airtime_info *air_info = &sta->airtime[ac]; 1583 struct txq_info *txqi; 1584 u8 tid; 1585 1586 spin_lock_bh(&air_sched->lock); 1587 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { 1588 if (air_info->weight == params->airtime_weight || 1589 !sta->sta.txq[tid] || 1590 ac != ieee80211_ac_from_tid(tid)) 1591 continue; 1592 1593 airtime_weight_set(air_info, params->airtime_weight); 1594 1595 txqi = to_txq_info(sta->sta.txq[tid]); 1596 if (RB_EMPTY_NODE(&txqi->schedule_order)) 1597 continue; 1598 1599 ieee80211_update_airtime_weight(local, air_sched, 1600 0, true); 1601 } 1602 spin_unlock_bh(&air_sched->lock); 1603 } 1604 } 1605 1606 static int sta_apply_parameters(struct ieee80211_local *local, 1607 struct sta_info *sta, 1608 struct station_parameters *params) 1609 { 1610 int ret = 0; 1611 struct ieee80211_supported_band *sband; 1612 struct ieee80211_sub_if_data *sdata = sta->sdata; 1613 u32 mask, set; 1614 1615 sband = ieee80211_get_sband(sdata); 1616 if (!sband) 1617 return -EINVAL; 1618 1619 mask = params->sta_flags_mask; 1620 set = params->sta_flags_set; 1621 1622 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1623 /* 1624 * In mesh mode, ASSOCIATED isn't part of the nl80211 1625 * API but must follow AUTHENTICATED for driver state. 1626 */ 1627 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1628 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1629 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1630 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1631 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1632 /* 1633 * TDLS -- everything follows authorized, but 1634 * only becoming authorized is possible, not 1635 * going back 1636 */ 1637 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1638 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1639 BIT(NL80211_STA_FLAG_ASSOCIATED); 1640 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1641 BIT(NL80211_STA_FLAG_ASSOCIATED); 1642 } 1643 } 1644 1645 if (mask & BIT(NL80211_STA_FLAG_WME) && 1646 local->hw.queues >= IEEE80211_NUM_ACS) 1647 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1648 1649 /* auth flags will be set later for TDLS, 1650 * and for unassociated stations that move to associated */ 1651 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1652 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1653 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1654 ret = sta_apply_auth_flags(local, sta, mask, set); 1655 if (ret) 1656 return ret; 1657 } 1658 1659 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1660 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1661 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1662 else 1663 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1664 } 1665 1666 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1667 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1668 if (set & BIT(NL80211_STA_FLAG_MFP)) 1669 set_sta_flag(sta, WLAN_STA_MFP); 1670 else 1671 clear_sta_flag(sta, WLAN_STA_MFP); 1672 } 1673 1674 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1675 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1676 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1677 else 1678 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1679 } 1680 1681 /* mark TDLS channel switch support, if the AP allows it */ 1682 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1683 !sdata->u.mgd.tdls_chan_switch_prohibited && 1684 params->ext_capab_len >= 4 && 1685 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1686 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1687 1688 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1689 !sdata->u.mgd.tdls_wider_bw_prohibited && 1690 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1691 params->ext_capab_len >= 8 && 1692 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1693 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1694 1695 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1696 sta->sta.uapsd_queues = params->uapsd_queues; 1697 sta->sta.max_sp = params->max_sp; 1698 } 1699 1700 /* The sender might not have sent the last bit, consider it to be 0 */ 1701 if (params->ext_capab_len >= 8) { 1702 u8 val = (params->ext_capab[7] & 1703 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1704 1705 /* we did get all the bits, take the MSB as well */ 1706 if (params->ext_capab_len >= 9) { 1707 u8 val_msb = params->ext_capab[8] & 1708 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1709 val_msb <<= 1; 1710 val |= val_msb; 1711 } 1712 1713 switch (val) { 1714 case 1: 1715 sta->sta.max_amsdu_subframes = 32; 1716 break; 1717 case 2: 1718 sta->sta.max_amsdu_subframes = 16; 1719 break; 1720 case 3: 1721 sta->sta.max_amsdu_subframes = 8; 1722 break; 1723 default: 1724 sta->sta.max_amsdu_subframes = 0; 1725 } 1726 } 1727 1728 /* 1729 * cfg80211 validates this (1-2007) and allows setting the AID 1730 * only when creating a new station entry 1731 */ 1732 if (params->aid) 1733 sta->sta.aid = params->aid; 1734 1735 /* 1736 * Some of the following updates would be racy if called on an 1737 * existing station, via ieee80211_change_station(). However, 1738 * all such changes are rejected by cfg80211 except for updates 1739 * changing the supported rates on an existing but not yet used 1740 * TDLS peer. 1741 */ 1742 1743 if (params->listen_interval >= 0) 1744 sta->listen_interval = params->listen_interval; 1745 1746 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1747 sta->sta.deflink.txpwr.type = params->txpwr.type; 1748 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1749 sta->sta.deflink.txpwr.power = params->txpwr.power; 1750 ret = drv_sta_set_txpwr(local, sdata, sta); 1751 if (ret) 1752 return ret; 1753 } 1754 1755 if (params->supported_rates && params->supported_rates_len) { 1756 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1757 sband, params->supported_rates, 1758 params->supported_rates_len, 1759 &sta->sta.deflink.supp_rates[sband->band]); 1760 } 1761 1762 if (params->ht_capa) 1763 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1764 params->ht_capa, sta); 1765 1766 /* VHT can override some HT caps such as the A-MSDU max length */ 1767 if (params->vht_capa) 1768 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1769 params->vht_capa, sta); 1770 1771 if (params->he_capa) 1772 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1773 (void *)params->he_capa, 1774 params->he_capa_len, 1775 (void *)params->he_6ghz_capa, 1776 sta); 1777 1778 if (params->eht_capa) 1779 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1780 (u8 *)params->he_capa, 1781 params->he_capa_len, 1782 params->eht_capa, 1783 params->eht_capa_len, 1784 sta); 1785 1786 if (params->opmode_notif_used) { 1787 /* returned value is only needed for rc update, but the 1788 * rc isn't initialized here yet, so ignore it 1789 */ 1790 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1791 sband->band); 1792 } 1793 1794 if (params->support_p2p_ps >= 0) 1795 sta->sta.support_p2p_ps = params->support_p2p_ps; 1796 1797 if (ieee80211_vif_is_mesh(&sdata->vif)) 1798 sta_apply_mesh_params(local, sta, params); 1799 1800 if (params->airtime_weight) 1801 sta_apply_airtime_params(local, sta, params); 1802 1803 1804 /* set the STA state after all sta info from usermode has been set */ 1805 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1806 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1807 ret = sta_apply_auth_flags(local, sta, mask, set); 1808 if (ret) 1809 return ret; 1810 } 1811 1812 return 0; 1813 } 1814 1815 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1816 const u8 *mac, 1817 struct station_parameters *params) 1818 { 1819 struct ieee80211_local *local = wiphy_priv(wiphy); 1820 struct sta_info *sta; 1821 struct ieee80211_sub_if_data *sdata; 1822 int err; 1823 1824 if (params->vlan) { 1825 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1826 1827 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1828 sdata->vif.type != NL80211_IFTYPE_AP) 1829 return -EINVAL; 1830 } else 1831 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1832 1833 if (ether_addr_equal(mac, sdata->vif.addr)) 1834 return -EINVAL; 1835 1836 if (!is_valid_ether_addr(mac)) 1837 return -EINVAL; 1838 1839 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1840 sdata->vif.type == NL80211_IFTYPE_STATION && 1841 !sdata->u.mgd.associated) 1842 return -EINVAL; 1843 1844 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1845 if (!sta) 1846 return -ENOMEM; 1847 1848 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1849 sta->sta.tdls = true; 1850 1851 err = sta_apply_parameters(local, sta, params); 1852 if (err) { 1853 sta_info_free(local, sta); 1854 return err; 1855 } 1856 1857 /* 1858 * for TDLS and for unassociated station, rate control should be 1859 * initialized only when rates are known and station is marked 1860 * authorized/associated 1861 */ 1862 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1863 test_sta_flag(sta, WLAN_STA_ASSOC)) 1864 rate_control_rate_init(sta); 1865 1866 return sta_info_insert(sta); 1867 } 1868 1869 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1870 struct station_del_parameters *params) 1871 { 1872 struct ieee80211_sub_if_data *sdata; 1873 1874 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1875 1876 if (params->mac) 1877 return sta_info_destroy_addr_bss(sdata, params->mac); 1878 1879 sta_info_flush(sdata); 1880 return 0; 1881 } 1882 1883 static int ieee80211_change_station(struct wiphy *wiphy, 1884 struct net_device *dev, const u8 *mac, 1885 struct station_parameters *params) 1886 { 1887 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1888 struct ieee80211_local *local = wiphy_priv(wiphy); 1889 struct sta_info *sta; 1890 struct ieee80211_sub_if_data *vlansdata; 1891 enum cfg80211_station_type statype; 1892 int err; 1893 1894 mutex_lock(&local->sta_mtx); 1895 1896 sta = sta_info_get_bss(sdata, mac); 1897 if (!sta) { 1898 err = -ENOENT; 1899 goto out_err; 1900 } 1901 1902 switch (sdata->vif.type) { 1903 case NL80211_IFTYPE_MESH_POINT: 1904 if (sdata->u.mesh.user_mpm) 1905 statype = CFG80211_STA_MESH_PEER_USER; 1906 else 1907 statype = CFG80211_STA_MESH_PEER_KERNEL; 1908 break; 1909 case NL80211_IFTYPE_ADHOC: 1910 statype = CFG80211_STA_IBSS; 1911 break; 1912 case NL80211_IFTYPE_STATION: 1913 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1914 statype = CFG80211_STA_AP_STA; 1915 break; 1916 } 1917 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1918 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1919 else 1920 statype = CFG80211_STA_TDLS_PEER_SETUP; 1921 break; 1922 case NL80211_IFTYPE_AP: 1923 case NL80211_IFTYPE_AP_VLAN: 1924 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1925 statype = CFG80211_STA_AP_CLIENT; 1926 else 1927 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1928 break; 1929 default: 1930 err = -EOPNOTSUPP; 1931 goto out_err; 1932 } 1933 1934 err = cfg80211_check_station_change(wiphy, params, statype); 1935 if (err) 1936 goto out_err; 1937 1938 if (params->vlan && params->vlan != sta->sdata->dev) { 1939 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1940 1941 if (params->vlan->ieee80211_ptr->use_4addr) { 1942 if (vlansdata->u.vlan.sta) { 1943 err = -EBUSY; 1944 goto out_err; 1945 } 1946 1947 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1948 __ieee80211_check_fast_rx_iface(vlansdata); 1949 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1950 } 1951 1952 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1953 sta->sdata->u.vlan.sta) { 1954 ieee80211_clear_fast_rx(sta); 1955 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1956 } 1957 1958 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1959 ieee80211_vif_dec_num_mcast(sta->sdata); 1960 1961 sta->sdata = vlansdata; 1962 ieee80211_check_fast_xmit(sta); 1963 1964 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1965 ieee80211_vif_inc_num_mcast(sta->sdata); 1966 cfg80211_send_layer2_update(sta->sdata->dev, 1967 sta->sta.addr); 1968 } 1969 } 1970 1971 err = sta_apply_parameters(local, sta, params); 1972 if (err) 1973 goto out_err; 1974 1975 mutex_unlock(&local->sta_mtx); 1976 1977 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1978 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1979 ieee80211_recalc_ps(local); 1980 ieee80211_recalc_ps_vif(sdata); 1981 } 1982 1983 return 0; 1984 out_err: 1985 mutex_unlock(&local->sta_mtx); 1986 return err; 1987 } 1988 1989 #ifdef CONFIG_MAC80211_MESH 1990 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1991 const u8 *dst, const u8 *next_hop) 1992 { 1993 struct ieee80211_sub_if_data *sdata; 1994 struct mesh_path *mpath; 1995 struct sta_info *sta; 1996 1997 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1998 1999 rcu_read_lock(); 2000 sta = sta_info_get(sdata, next_hop); 2001 if (!sta) { 2002 rcu_read_unlock(); 2003 return -ENOENT; 2004 } 2005 2006 mpath = mesh_path_add(sdata, dst); 2007 if (IS_ERR(mpath)) { 2008 rcu_read_unlock(); 2009 return PTR_ERR(mpath); 2010 } 2011 2012 mesh_path_fix_nexthop(mpath, sta); 2013 2014 rcu_read_unlock(); 2015 return 0; 2016 } 2017 2018 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2019 const u8 *dst) 2020 { 2021 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2022 2023 if (dst) 2024 return mesh_path_del(sdata, dst); 2025 2026 mesh_path_flush_by_iface(sdata); 2027 return 0; 2028 } 2029 2030 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2031 const u8 *dst, const u8 *next_hop) 2032 { 2033 struct ieee80211_sub_if_data *sdata; 2034 struct mesh_path *mpath; 2035 struct sta_info *sta; 2036 2037 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2038 2039 rcu_read_lock(); 2040 2041 sta = sta_info_get(sdata, next_hop); 2042 if (!sta) { 2043 rcu_read_unlock(); 2044 return -ENOENT; 2045 } 2046 2047 mpath = mesh_path_lookup(sdata, dst); 2048 if (!mpath) { 2049 rcu_read_unlock(); 2050 return -ENOENT; 2051 } 2052 2053 mesh_path_fix_nexthop(mpath, sta); 2054 2055 rcu_read_unlock(); 2056 return 0; 2057 } 2058 2059 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2060 struct mpath_info *pinfo) 2061 { 2062 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2063 2064 if (next_hop_sta) 2065 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2066 else 2067 eth_zero_addr(next_hop); 2068 2069 memset(pinfo, 0, sizeof(*pinfo)); 2070 2071 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2072 2073 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2074 MPATH_INFO_SN | 2075 MPATH_INFO_METRIC | 2076 MPATH_INFO_EXPTIME | 2077 MPATH_INFO_DISCOVERY_TIMEOUT | 2078 MPATH_INFO_DISCOVERY_RETRIES | 2079 MPATH_INFO_FLAGS | 2080 MPATH_INFO_HOP_COUNT | 2081 MPATH_INFO_PATH_CHANGE; 2082 2083 pinfo->frame_qlen = mpath->frame_queue.qlen; 2084 pinfo->sn = mpath->sn; 2085 pinfo->metric = mpath->metric; 2086 if (time_before(jiffies, mpath->exp_time)) 2087 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2088 pinfo->discovery_timeout = 2089 jiffies_to_msecs(mpath->discovery_timeout); 2090 pinfo->discovery_retries = mpath->discovery_retries; 2091 if (mpath->flags & MESH_PATH_ACTIVE) 2092 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2093 if (mpath->flags & MESH_PATH_RESOLVING) 2094 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2095 if (mpath->flags & MESH_PATH_SN_VALID) 2096 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2097 if (mpath->flags & MESH_PATH_FIXED) 2098 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2099 if (mpath->flags & MESH_PATH_RESOLVED) 2100 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2101 pinfo->hop_count = mpath->hop_count; 2102 pinfo->path_change_count = mpath->path_change_count; 2103 } 2104 2105 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2106 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2107 2108 { 2109 struct ieee80211_sub_if_data *sdata; 2110 struct mesh_path *mpath; 2111 2112 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2113 2114 rcu_read_lock(); 2115 mpath = mesh_path_lookup(sdata, dst); 2116 if (!mpath) { 2117 rcu_read_unlock(); 2118 return -ENOENT; 2119 } 2120 memcpy(dst, mpath->dst, ETH_ALEN); 2121 mpath_set_pinfo(mpath, next_hop, pinfo); 2122 rcu_read_unlock(); 2123 return 0; 2124 } 2125 2126 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2127 int idx, u8 *dst, u8 *next_hop, 2128 struct mpath_info *pinfo) 2129 { 2130 struct ieee80211_sub_if_data *sdata; 2131 struct mesh_path *mpath; 2132 2133 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2134 2135 rcu_read_lock(); 2136 mpath = mesh_path_lookup_by_idx(sdata, idx); 2137 if (!mpath) { 2138 rcu_read_unlock(); 2139 return -ENOENT; 2140 } 2141 memcpy(dst, mpath->dst, ETH_ALEN); 2142 mpath_set_pinfo(mpath, next_hop, pinfo); 2143 rcu_read_unlock(); 2144 return 0; 2145 } 2146 2147 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2148 struct mpath_info *pinfo) 2149 { 2150 memset(pinfo, 0, sizeof(*pinfo)); 2151 memcpy(mpp, mpath->mpp, ETH_ALEN); 2152 2153 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2154 } 2155 2156 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2157 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2158 2159 { 2160 struct ieee80211_sub_if_data *sdata; 2161 struct mesh_path *mpath; 2162 2163 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2164 2165 rcu_read_lock(); 2166 mpath = mpp_path_lookup(sdata, dst); 2167 if (!mpath) { 2168 rcu_read_unlock(); 2169 return -ENOENT; 2170 } 2171 memcpy(dst, mpath->dst, ETH_ALEN); 2172 mpp_set_pinfo(mpath, mpp, pinfo); 2173 rcu_read_unlock(); 2174 return 0; 2175 } 2176 2177 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2178 int idx, u8 *dst, u8 *mpp, 2179 struct mpath_info *pinfo) 2180 { 2181 struct ieee80211_sub_if_data *sdata; 2182 struct mesh_path *mpath; 2183 2184 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2185 2186 rcu_read_lock(); 2187 mpath = mpp_path_lookup_by_idx(sdata, idx); 2188 if (!mpath) { 2189 rcu_read_unlock(); 2190 return -ENOENT; 2191 } 2192 memcpy(dst, mpath->dst, ETH_ALEN); 2193 mpp_set_pinfo(mpath, mpp, pinfo); 2194 rcu_read_unlock(); 2195 return 0; 2196 } 2197 2198 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2199 struct net_device *dev, 2200 struct mesh_config *conf) 2201 { 2202 struct ieee80211_sub_if_data *sdata; 2203 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2204 2205 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2206 return 0; 2207 } 2208 2209 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2210 { 2211 return (mask >> (parm-1)) & 0x1; 2212 } 2213 2214 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2215 const struct mesh_setup *setup) 2216 { 2217 u8 *new_ie; 2218 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2219 struct ieee80211_sub_if_data, u.mesh); 2220 int i; 2221 2222 /* allocate information elements */ 2223 new_ie = NULL; 2224 2225 if (setup->ie_len) { 2226 new_ie = kmemdup(setup->ie, setup->ie_len, 2227 GFP_KERNEL); 2228 if (!new_ie) 2229 return -ENOMEM; 2230 } 2231 ifmsh->ie_len = setup->ie_len; 2232 ifmsh->ie = new_ie; 2233 2234 /* now copy the rest of the setup parameters */ 2235 ifmsh->mesh_id_len = setup->mesh_id_len; 2236 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2237 ifmsh->mesh_sp_id = setup->sync_method; 2238 ifmsh->mesh_pp_id = setup->path_sel_proto; 2239 ifmsh->mesh_pm_id = setup->path_metric; 2240 ifmsh->user_mpm = setup->user_mpm; 2241 ifmsh->mesh_auth_id = setup->auth_id; 2242 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2243 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2244 if (setup->is_authenticated) 2245 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2246 if (setup->is_secure) 2247 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2248 2249 /* mcast rate setting in Mesh Node */ 2250 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2251 sizeof(setup->mcast_rate)); 2252 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2253 2254 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2255 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2256 2257 sdata->beacon_rate_set = false; 2258 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2259 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2260 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2261 sdata->beacon_rateidx_mask[i] = 2262 setup->beacon_rate.control[i].legacy; 2263 if (sdata->beacon_rateidx_mask[i]) 2264 sdata->beacon_rate_set = true; 2265 } 2266 } 2267 2268 return 0; 2269 } 2270 2271 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2272 struct net_device *dev, u32 mask, 2273 const struct mesh_config *nconf) 2274 { 2275 struct mesh_config *conf; 2276 struct ieee80211_sub_if_data *sdata; 2277 struct ieee80211_if_mesh *ifmsh; 2278 2279 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2280 ifmsh = &sdata->u.mesh; 2281 2282 /* Set the config options which we are interested in setting */ 2283 conf = &(sdata->u.mesh.mshcfg); 2284 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2285 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2286 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2287 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2288 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2289 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2290 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2291 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2292 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2293 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2294 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2295 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2296 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2297 conf->element_ttl = nconf->element_ttl; 2298 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2299 if (ifmsh->user_mpm) 2300 return -EBUSY; 2301 conf->auto_open_plinks = nconf->auto_open_plinks; 2302 } 2303 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2304 conf->dot11MeshNbrOffsetMaxNeighbor = 2305 nconf->dot11MeshNbrOffsetMaxNeighbor; 2306 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2307 conf->dot11MeshHWMPmaxPREQretries = 2308 nconf->dot11MeshHWMPmaxPREQretries; 2309 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2310 conf->path_refresh_time = nconf->path_refresh_time; 2311 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2312 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2313 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2314 conf->dot11MeshHWMPactivePathTimeout = 2315 nconf->dot11MeshHWMPactivePathTimeout; 2316 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2317 conf->dot11MeshHWMPpreqMinInterval = 2318 nconf->dot11MeshHWMPpreqMinInterval; 2319 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2320 conf->dot11MeshHWMPperrMinInterval = 2321 nconf->dot11MeshHWMPperrMinInterval; 2322 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2323 mask)) 2324 conf->dot11MeshHWMPnetDiameterTraversalTime = 2325 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2326 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2327 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2328 ieee80211_mesh_root_setup(ifmsh); 2329 } 2330 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2331 /* our current gate announcement implementation rides on root 2332 * announcements, so require this ifmsh to also be a root node 2333 * */ 2334 if (nconf->dot11MeshGateAnnouncementProtocol && 2335 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2336 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2337 ieee80211_mesh_root_setup(ifmsh); 2338 } 2339 conf->dot11MeshGateAnnouncementProtocol = 2340 nconf->dot11MeshGateAnnouncementProtocol; 2341 } 2342 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2343 conf->dot11MeshHWMPRannInterval = 2344 nconf->dot11MeshHWMPRannInterval; 2345 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2346 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2347 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2348 /* our RSSI threshold implementation is supported only for 2349 * devices that report signal in dBm. 2350 */ 2351 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2352 return -ENOTSUPP; 2353 conf->rssi_threshold = nconf->rssi_threshold; 2354 } 2355 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2356 conf->ht_opmode = nconf->ht_opmode; 2357 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2358 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2359 } 2360 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2361 conf->dot11MeshHWMPactivePathToRootTimeout = 2362 nconf->dot11MeshHWMPactivePathToRootTimeout; 2363 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2364 conf->dot11MeshHWMProotInterval = 2365 nconf->dot11MeshHWMProotInterval; 2366 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2367 conf->dot11MeshHWMPconfirmationInterval = 2368 nconf->dot11MeshHWMPconfirmationInterval; 2369 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2370 conf->power_mode = nconf->power_mode; 2371 ieee80211_mps_local_status_update(sdata); 2372 } 2373 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2374 conf->dot11MeshAwakeWindowDuration = 2375 nconf->dot11MeshAwakeWindowDuration; 2376 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2377 conf->plink_timeout = nconf->plink_timeout; 2378 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2379 conf->dot11MeshConnectedToMeshGate = 2380 nconf->dot11MeshConnectedToMeshGate; 2381 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2382 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2383 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2384 conf->dot11MeshConnectedToAuthServer = 2385 nconf->dot11MeshConnectedToAuthServer; 2386 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2387 return 0; 2388 } 2389 2390 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2391 const struct mesh_config *conf, 2392 const struct mesh_setup *setup) 2393 { 2394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2395 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2396 int err; 2397 2398 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2399 err = copy_mesh_setup(ifmsh, setup); 2400 if (err) 2401 return err; 2402 2403 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2404 2405 /* can mesh use other SMPS modes? */ 2406 sdata->smps_mode = IEEE80211_SMPS_OFF; 2407 sdata->needed_rx_chains = sdata->local->rx_chains; 2408 2409 mutex_lock(&sdata->local->mtx); 2410 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2411 IEEE80211_CHANCTX_SHARED); 2412 mutex_unlock(&sdata->local->mtx); 2413 if (err) 2414 return err; 2415 2416 return ieee80211_start_mesh(sdata); 2417 } 2418 2419 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2420 { 2421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2422 2423 ieee80211_stop_mesh(sdata); 2424 mutex_lock(&sdata->local->mtx); 2425 ieee80211_vif_release_channel(sdata); 2426 kfree(sdata->u.mesh.ie); 2427 mutex_unlock(&sdata->local->mtx); 2428 2429 return 0; 2430 } 2431 #endif 2432 2433 static int ieee80211_change_bss(struct wiphy *wiphy, 2434 struct net_device *dev, 2435 struct bss_parameters *params) 2436 { 2437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2438 struct ieee80211_supported_band *sband; 2439 u32 changed = 0; 2440 2441 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2442 return -ENOENT; 2443 2444 sband = ieee80211_get_sband(sdata); 2445 if (!sband) 2446 return -EINVAL; 2447 2448 if (params->use_cts_prot >= 0) { 2449 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2450 changed |= BSS_CHANGED_ERP_CTS_PROT; 2451 } 2452 if (params->use_short_preamble >= 0) { 2453 sdata->vif.bss_conf.use_short_preamble = 2454 params->use_short_preamble; 2455 changed |= BSS_CHANGED_ERP_PREAMBLE; 2456 } 2457 2458 if (!sdata->vif.bss_conf.use_short_slot && 2459 (sband->band == NL80211_BAND_5GHZ || 2460 sband->band == NL80211_BAND_6GHZ)) { 2461 sdata->vif.bss_conf.use_short_slot = true; 2462 changed |= BSS_CHANGED_ERP_SLOT; 2463 } 2464 2465 if (params->use_short_slot_time >= 0) { 2466 sdata->vif.bss_conf.use_short_slot = 2467 params->use_short_slot_time; 2468 changed |= BSS_CHANGED_ERP_SLOT; 2469 } 2470 2471 if (params->basic_rates) { 2472 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2473 wiphy->bands[sband->band], 2474 params->basic_rates, 2475 params->basic_rates_len, 2476 &sdata->vif.bss_conf.basic_rates); 2477 changed |= BSS_CHANGED_BASIC_RATES; 2478 ieee80211_check_rate_mask(sdata); 2479 } 2480 2481 if (params->ap_isolate >= 0) { 2482 if (params->ap_isolate) 2483 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2484 else 2485 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2486 ieee80211_check_fast_rx_iface(sdata); 2487 } 2488 2489 if (params->ht_opmode >= 0) { 2490 sdata->vif.bss_conf.ht_operation_mode = 2491 (u16) params->ht_opmode; 2492 changed |= BSS_CHANGED_HT; 2493 } 2494 2495 if (params->p2p_ctwindow >= 0) { 2496 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2497 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2498 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2499 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2500 changed |= BSS_CHANGED_P2P_PS; 2501 } 2502 2503 if (params->p2p_opp_ps > 0) { 2504 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2505 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2506 changed |= BSS_CHANGED_P2P_PS; 2507 } else if (params->p2p_opp_ps == 0) { 2508 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2509 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2510 changed |= BSS_CHANGED_P2P_PS; 2511 } 2512 2513 ieee80211_bss_info_change_notify(sdata, changed); 2514 2515 return 0; 2516 } 2517 2518 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2519 struct net_device *dev, 2520 struct ieee80211_txq_params *params) 2521 { 2522 struct ieee80211_local *local = wiphy_priv(wiphy); 2523 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2524 struct ieee80211_tx_queue_params p; 2525 2526 if (!local->ops->conf_tx) 2527 return -EOPNOTSUPP; 2528 2529 if (local->hw.queues < IEEE80211_NUM_ACS) 2530 return -EOPNOTSUPP; 2531 2532 memset(&p, 0, sizeof(p)); 2533 p.aifs = params->aifs; 2534 p.cw_max = params->cwmax; 2535 p.cw_min = params->cwmin; 2536 p.txop = params->txop; 2537 2538 /* 2539 * Setting tx queue params disables u-apsd because it's only 2540 * called in master mode. 2541 */ 2542 p.uapsd = false; 2543 2544 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2545 2546 sdata->tx_conf[params->ac] = p; 2547 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2548 wiphy_debug(local->hw.wiphy, 2549 "failed to set TX queue parameters for AC %d\n", 2550 params->ac); 2551 return -EINVAL; 2552 } 2553 2554 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2555 2556 return 0; 2557 } 2558 2559 #ifdef CONFIG_PM 2560 static int ieee80211_suspend(struct wiphy *wiphy, 2561 struct cfg80211_wowlan *wowlan) 2562 { 2563 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2564 } 2565 2566 static int ieee80211_resume(struct wiphy *wiphy) 2567 { 2568 return __ieee80211_resume(wiphy_priv(wiphy)); 2569 } 2570 #else 2571 #define ieee80211_suspend NULL 2572 #define ieee80211_resume NULL 2573 #endif 2574 2575 static int ieee80211_scan(struct wiphy *wiphy, 2576 struct cfg80211_scan_request *req) 2577 { 2578 struct ieee80211_sub_if_data *sdata; 2579 2580 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2581 2582 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2583 case NL80211_IFTYPE_STATION: 2584 case NL80211_IFTYPE_ADHOC: 2585 case NL80211_IFTYPE_MESH_POINT: 2586 case NL80211_IFTYPE_P2P_CLIENT: 2587 case NL80211_IFTYPE_P2P_DEVICE: 2588 break; 2589 case NL80211_IFTYPE_P2P_GO: 2590 if (sdata->local->ops->hw_scan) 2591 break; 2592 /* 2593 * FIXME: implement NoA while scanning in software, 2594 * for now fall through to allow scanning only when 2595 * beaconing hasn't been configured yet 2596 */ 2597 fallthrough; 2598 case NL80211_IFTYPE_AP: 2599 /* 2600 * If the scan has been forced (and the driver supports 2601 * forcing), don't care about being beaconing already. 2602 * This will create problems to the attached stations (e.g. all 2603 * the frames sent while scanning on other channel will be 2604 * lost) 2605 */ 2606 if (sdata->u.ap.beacon && 2607 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2608 !(req->flags & NL80211_SCAN_FLAG_AP))) 2609 return -EOPNOTSUPP; 2610 break; 2611 case NL80211_IFTYPE_NAN: 2612 default: 2613 return -EOPNOTSUPP; 2614 } 2615 2616 return ieee80211_request_scan(sdata, req); 2617 } 2618 2619 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2620 { 2621 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2622 } 2623 2624 static int 2625 ieee80211_sched_scan_start(struct wiphy *wiphy, 2626 struct net_device *dev, 2627 struct cfg80211_sched_scan_request *req) 2628 { 2629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2630 2631 if (!sdata->local->ops->sched_scan_start) 2632 return -EOPNOTSUPP; 2633 2634 return ieee80211_request_sched_scan_start(sdata, req); 2635 } 2636 2637 static int 2638 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2639 u64 reqid) 2640 { 2641 struct ieee80211_local *local = wiphy_priv(wiphy); 2642 2643 if (!local->ops->sched_scan_stop) 2644 return -EOPNOTSUPP; 2645 2646 return ieee80211_request_sched_scan_stop(local); 2647 } 2648 2649 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2650 struct cfg80211_auth_request *req) 2651 { 2652 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2653 } 2654 2655 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2656 struct cfg80211_assoc_request *req) 2657 { 2658 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2659 } 2660 2661 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2662 struct cfg80211_deauth_request *req) 2663 { 2664 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2665 } 2666 2667 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2668 struct cfg80211_disassoc_request *req) 2669 { 2670 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2671 } 2672 2673 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2674 struct cfg80211_ibss_params *params) 2675 { 2676 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2677 } 2678 2679 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2680 { 2681 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2682 } 2683 2684 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2685 struct ocb_setup *setup) 2686 { 2687 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2688 } 2689 2690 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2691 { 2692 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2693 } 2694 2695 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2696 int rate[NUM_NL80211_BANDS]) 2697 { 2698 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2699 2700 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2701 sizeof(int) * NUM_NL80211_BANDS); 2702 2703 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2704 2705 return 0; 2706 } 2707 2708 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2709 { 2710 struct ieee80211_local *local = wiphy_priv(wiphy); 2711 int err; 2712 2713 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2714 ieee80211_check_fast_xmit_all(local); 2715 2716 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2717 2718 if (err) { 2719 ieee80211_check_fast_xmit_all(local); 2720 return err; 2721 } 2722 } 2723 2724 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2725 (changed & WIPHY_PARAM_DYN_ACK)) { 2726 s16 coverage_class; 2727 2728 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2729 wiphy->coverage_class : -1; 2730 err = drv_set_coverage_class(local, coverage_class); 2731 2732 if (err) 2733 return err; 2734 } 2735 2736 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2737 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2738 2739 if (err) 2740 return err; 2741 } 2742 2743 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2744 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2745 return -EINVAL; 2746 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2747 } 2748 if (changed & WIPHY_PARAM_RETRY_LONG) { 2749 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2750 return -EINVAL; 2751 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2752 } 2753 if (changed & 2754 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2755 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2756 2757 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2758 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2759 WIPHY_PARAM_TXQ_QUANTUM)) 2760 ieee80211_txq_set_params(local); 2761 2762 return 0; 2763 } 2764 2765 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2766 struct wireless_dev *wdev, 2767 enum nl80211_tx_power_setting type, int mbm) 2768 { 2769 struct ieee80211_local *local = wiphy_priv(wiphy); 2770 struct ieee80211_sub_if_data *sdata; 2771 enum nl80211_tx_power_setting txp_type = type; 2772 bool update_txp_type = false; 2773 bool has_monitor = false; 2774 2775 if (wdev) { 2776 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2777 2778 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2779 sdata = wiphy_dereference(local->hw.wiphy, 2780 local->monitor_sdata); 2781 if (!sdata) 2782 return -EOPNOTSUPP; 2783 } 2784 2785 switch (type) { 2786 case NL80211_TX_POWER_AUTOMATIC: 2787 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2788 txp_type = NL80211_TX_POWER_LIMITED; 2789 break; 2790 case NL80211_TX_POWER_LIMITED: 2791 case NL80211_TX_POWER_FIXED: 2792 if (mbm < 0 || (mbm % 100)) 2793 return -EOPNOTSUPP; 2794 sdata->user_power_level = MBM_TO_DBM(mbm); 2795 break; 2796 } 2797 2798 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2799 update_txp_type = true; 2800 sdata->vif.bss_conf.txpower_type = txp_type; 2801 } 2802 2803 ieee80211_recalc_txpower(sdata, update_txp_type); 2804 2805 return 0; 2806 } 2807 2808 switch (type) { 2809 case NL80211_TX_POWER_AUTOMATIC: 2810 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2811 txp_type = NL80211_TX_POWER_LIMITED; 2812 break; 2813 case NL80211_TX_POWER_LIMITED: 2814 case NL80211_TX_POWER_FIXED: 2815 if (mbm < 0 || (mbm % 100)) 2816 return -EOPNOTSUPP; 2817 local->user_power_level = MBM_TO_DBM(mbm); 2818 break; 2819 } 2820 2821 mutex_lock(&local->iflist_mtx); 2822 list_for_each_entry(sdata, &local->interfaces, list) { 2823 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2824 has_monitor = true; 2825 continue; 2826 } 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 list_for_each_entry(sdata, &local->interfaces, list) { 2833 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2834 continue; 2835 ieee80211_recalc_txpower(sdata, update_txp_type); 2836 } 2837 mutex_unlock(&local->iflist_mtx); 2838 2839 if (has_monitor) { 2840 sdata = wiphy_dereference(local->hw.wiphy, 2841 local->monitor_sdata); 2842 if (sdata) { 2843 sdata->user_power_level = local->user_power_level; 2844 if (txp_type != sdata->vif.bss_conf.txpower_type) 2845 update_txp_type = true; 2846 sdata->vif.bss_conf.txpower_type = txp_type; 2847 2848 ieee80211_recalc_txpower(sdata, update_txp_type); 2849 } 2850 } 2851 2852 return 0; 2853 } 2854 2855 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2856 struct wireless_dev *wdev, 2857 int *dbm) 2858 { 2859 struct ieee80211_local *local = wiphy_priv(wiphy); 2860 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2861 2862 if (local->ops->get_txpower) 2863 return drv_get_txpower(local, sdata, dbm); 2864 2865 if (!local->use_chanctx) 2866 *dbm = local->hw.conf.power_level; 2867 else 2868 *dbm = sdata->vif.bss_conf.txpower; 2869 2870 return 0; 2871 } 2872 2873 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2874 { 2875 struct ieee80211_local *local = wiphy_priv(wiphy); 2876 2877 drv_rfkill_poll(local); 2878 } 2879 2880 #ifdef CONFIG_NL80211_TESTMODE 2881 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2882 struct wireless_dev *wdev, 2883 void *data, int len) 2884 { 2885 struct ieee80211_local *local = wiphy_priv(wiphy); 2886 struct ieee80211_vif *vif = NULL; 2887 2888 if (!local->ops->testmode_cmd) 2889 return -EOPNOTSUPP; 2890 2891 if (wdev) { 2892 struct ieee80211_sub_if_data *sdata; 2893 2894 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2895 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2896 vif = &sdata->vif; 2897 } 2898 2899 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2900 } 2901 2902 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2903 struct sk_buff *skb, 2904 struct netlink_callback *cb, 2905 void *data, int len) 2906 { 2907 struct ieee80211_local *local = wiphy_priv(wiphy); 2908 2909 if (!local->ops->testmode_dump) 2910 return -EOPNOTSUPP; 2911 2912 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2913 } 2914 #endif 2915 2916 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2917 enum ieee80211_smps_mode smps_mode) 2918 { 2919 const u8 *ap; 2920 enum ieee80211_smps_mode old_req; 2921 int err; 2922 struct sta_info *sta; 2923 bool tdls_peer_found = false; 2924 2925 lockdep_assert_held(&sdata->wdev.mtx); 2926 2927 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2928 return -EINVAL; 2929 2930 old_req = sdata->u.mgd.req_smps; 2931 sdata->u.mgd.req_smps = smps_mode; 2932 2933 if (old_req == smps_mode && 2934 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2935 return 0; 2936 2937 /* 2938 * If not associated, or current association is not an HT 2939 * association, there's no need to do anything, just store 2940 * the new value until we associate. 2941 */ 2942 if (!sdata->u.mgd.associated || 2943 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2944 return 0; 2945 2946 ap = sdata->u.mgd.bssid; 2947 2948 rcu_read_lock(); 2949 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2950 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2951 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2952 continue; 2953 2954 tdls_peer_found = true; 2955 break; 2956 } 2957 rcu_read_unlock(); 2958 2959 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2960 if (tdls_peer_found || !sdata->u.mgd.powersave) 2961 smps_mode = IEEE80211_SMPS_OFF; 2962 else 2963 smps_mode = IEEE80211_SMPS_DYNAMIC; 2964 } 2965 2966 /* send SM PS frame to AP */ 2967 err = ieee80211_send_smps_action(sdata, smps_mode, 2968 ap, ap); 2969 if (err) 2970 sdata->u.mgd.req_smps = old_req; 2971 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2972 ieee80211_teardown_tdls_peers(sdata); 2973 2974 return err; 2975 } 2976 2977 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2978 bool enabled, int timeout) 2979 { 2980 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2981 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2982 2983 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2984 return -EOPNOTSUPP; 2985 2986 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2987 return -EOPNOTSUPP; 2988 2989 if (enabled == sdata->u.mgd.powersave && 2990 timeout == local->dynamic_ps_forced_timeout) 2991 return 0; 2992 2993 sdata->u.mgd.powersave = enabled; 2994 local->dynamic_ps_forced_timeout = timeout; 2995 2996 /* no change, but if automatic follow powersave */ 2997 sdata_lock(sdata); 2998 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2999 sdata_unlock(sdata); 3000 3001 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 3002 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 3003 3004 ieee80211_recalc_ps(local); 3005 ieee80211_recalc_ps_vif(sdata); 3006 ieee80211_check_fast_rx_iface(sdata); 3007 3008 return 0; 3009 } 3010 3011 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 3012 struct net_device *dev, 3013 s32 rssi_thold, u32 rssi_hyst) 3014 { 3015 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3016 struct ieee80211_vif *vif = &sdata->vif; 3017 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3018 3019 if (rssi_thold == bss_conf->cqm_rssi_thold && 3020 rssi_hyst == bss_conf->cqm_rssi_hyst) 3021 return 0; 3022 3023 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3024 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3025 return -EOPNOTSUPP; 3026 3027 bss_conf->cqm_rssi_thold = rssi_thold; 3028 bss_conf->cqm_rssi_hyst = rssi_hyst; 3029 bss_conf->cqm_rssi_low = 0; 3030 bss_conf->cqm_rssi_high = 0; 3031 sdata->u.mgd.last_cqm_event_signal = 0; 3032 3033 /* tell the driver upon association, unless already associated */ 3034 if (sdata->u.mgd.associated && 3035 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3036 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3037 3038 return 0; 3039 } 3040 3041 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3042 struct net_device *dev, 3043 s32 rssi_low, s32 rssi_high) 3044 { 3045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3046 struct ieee80211_vif *vif = &sdata->vif; 3047 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3048 3049 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3050 return -EOPNOTSUPP; 3051 3052 bss_conf->cqm_rssi_low = rssi_low; 3053 bss_conf->cqm_rssi_high = rssi_high; 3054 bss_conf->cqm_rssi_thold = 0; 3055 bss_conf->cqm_rssi_hyst = 0; 3056 sdata->u.mgd.last_cqm_event_signal = 0; 3057 3058 /* tell the driver upon association, unless already associated */ 3059 if (sdata->u.mgd.associated && 3060 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3061 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3062 3063 return 0; 3064 } 3065 3066 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3067 struct net_device *dev, 3068 const u8 *addr, 3069 const struct cfg80211_bitrate_mask *mask) 3070 { 3071 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3072 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3073 int i, ret; 3074 3075 if (!ieee80211_sdata_running(sdata)) 3076 return -ENETDOWN; 3077 3078 /* 3079 * If active validate the setting and reject it if it doesn't leave 3080 * at least one basic rate usable, since we really have to be able 3081 * to send something, and if we're an AP we have to be able to do 3082 * so at a basic rate so that all clients can receive it. 3083 */ 3084 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 3085 sdata->vif.bss_conf.chandef.chan) { 3086 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3087 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3088 3089 if (!(mask->control[band].legacy & basic_rates)) 3090 return -EINVAL; 3091 } 3092 3093 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3094 ret = drv_set_bitrate_mask(local, sdata, mask); 3095 if (ret) 3096 return ret; 3097 } 3098 3099 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3100 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3101 int j; 3102 3103 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3104 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3105 sizeof(mask->control[i].ht_mcs)); 3106 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3107 mask->control[i].vht_mcs, 3108 sizeof(mask->control[i].vht_mcs)); 3109 3110 sdata->rc_has_mcs_mask[i] = false; 3111 sdata->rc_has_vht_mcs_mask[i] = false; 3112 if (!sband) 3113 continue; 3114 3115 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3116 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3117 sdata->rc_has_mcs_mask[i] = true; 3118 break; 3119 } 3120 } 3121 3122 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3123 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3124 sdata->rc_has_vht_mcs_mask[i] = true; 3125 break; 3126 } 3127 } 3128 } 3129 3130 return 0; 3131 } 3132 3133 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3134 struct net_device *dev, 3135 struct cfg80211_chan_def *chandef, 3136 u32 cac_time_ms) 3137 { 3138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3139 struct ieee80211_local *local = sdata->local; 3140 int err; 3141 3142 mutex_lock(&local->mtx); 3143 if (!list_empty(&local->roc_list) || local->scanning) { 3144 err = -EBUSY; 3145 goto out_unlock; 3146 } 3147 3148 /* whatever, but channel contexts should not complain about that one */ 3149 sdata->smps_mode = IEEE80211_SMPS_OFF; 3150 sdata->needed_rx_chains = local->rx_chains; 3151 3152 err = ieee80211_vif_use_channel(sdata, chandef, 3153 IEEE80211_CHANCTX_SHARED); 3154 if (err) 3155 goto out_unlock; 3156 3157 ieee80211_queue_delayed_work(&sdata->local->hw, 3158 &sdata->dfs_cac_timer_work, 3159 msecs_to_jiffies(cac_time_ms)); 3160 3161 out_unlock: 3162 mutex_unlock(&local->mtx); 3163 return err; 3164 } 3165 3166 static void ieee80211_end_cac(struct wiphy *wiphy, 3167 struct net_device *dev) 3168 { 3169 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3170 struct ieee80211_local *local = sdata->local; 3171 3172 mutex_lock(&local->mtx); 3173 list_for_each_entry(sdata, &local->interfaces, list) { 3174 /* it might be waiting for the local->mtx, but then 3175 * by the time it gets it, sdata->wdev.cac_started 3176 * will no longer be true 3177 */ 3178 cancel_delayed_work(&sdata->dfs_cac_timer_work); 3179 3180 if (sdata->wdev.cac_started) { 3181 ieee80211_vif_release_channel(sdata); 3182 sdata->wdev.cac_started = false; 3183 } 3184 } 3185 mutex_unlock(&local->mtx); 3186 } 3187 3188 static struct cfg80211_beacon_data * 3189 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3190 { 3191 struct cfg80211_beacon_data *new_beacon; 3192 u8 *pos; 3193 int len; 3194 3195 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3196 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3197 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3198 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3199 3200 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3201 if (!new_beacon) 3202 return NULL; 3203 3204 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3205 new_beacon->mbssid_ies = 3206 kzalloc(struct_size(new_beacon->mbssid_ies, 3207 elem, beacon->mbssid_ies->cnt), 3208 GFP_KERNEL); 3209 if (!new_beacon->mbssid_ies) { 3210 kfree(new_beacon); 3211 return NULL; 3212 } 3213 } 3214 3215 pos = (u8 *)(new_beacon + 1); 3216 if (beacon->head_len) { 3217 new_beacon->head_len = beacon->head_len; 3218 new_beacon->head = pos; 3219 memcpy(pos, beacon->head, beacon->head_len); 3220 pos += beacon->head_len; 3221 } 3222 if (beacon->tail_len) { 3223 new_beacon->tail_len = beacon->tail_len; 3224 new_beacon->tail = pos; 3225 memcpy(pos, beacon->tail, beacon->tail_len); 3226 pos += beacon->tail_len; 3227 } 3228 if (beacon->beacon_ies_len) { 3229 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3230 new_beacon->beacon_ies = pos; 3231 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3232 pos += beacon->beacon_ies_len; 3233 } 3234 if (beacon->proberesp_ies_len) { 3235 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3236 new_beacon->proberesp_ies = pos; 3237 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3238 pos += beacon->proberesp_ies_len; 3239 } 3240 if (beacon->assocresp_ies_len) { 3241 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3242 new_beacon->assocresp_ies = pos; 3243 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3244 pos += beacon->assocresp_ies_len; 3245 } 3246 if (beacon->probe_resp_len) { 3247 new_beacon->probe_resp_len = beacon->probe_resp_len; 3248 new_beacon->probe_resp = pos; 3249 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3250 pos += beacon->probe_resp_len; 3251 } 3252 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3253 pos += ieee80211_copy_mbssid_beacon(pos, 3254 new_beacon->mbssid_ies, 3255 beacon->mbssid_ies); 3256 3257 /* might copy -1, meaning no changes requested */ 3258 new_beacon->ftm_responder = beacon->ftm_responder; 3259 if (beacon->lci) { 3260 new_beacon->lci_len = beacon->lci_len; 3261 new_beacon->lci = pos; 3262 memcpy(pos, beacon->lci, beacon->lci_len); 3263 pos += beacon->lci_len; 3264 } 3265 if (beacon->civicloc) { 3266 new_beacon->civicloc_len = beacon->civicloc_len; 3267 new_beacon->civicloc = pos; 3268 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3269 pos += beacon->civicloc_len; 3270 } 3271 3272 return new_beacon; 3273 } 3274 3275 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3276 { 3277 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3278 struct ieee80211_local *local = sdata->local; 3279 3280 rcu_read_lock(); 3281 3282 if (vif->mbssid_tx_vif == vif) { 3283 /* Trigger ieee80211_csa_finish() on the non-transmitting 3284 * interfaces when channel switch is received on 3285 * transmitting interface 3286 */ 3287 struct ieee80211_sub_if_data *iter; 3288 3289 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3290 if (!ieee80211_sdata_running(iter)) 3291 continue; 3292 3293 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3294 continue; 3295 3296 ieee80211_queue_work(&iter->local->hw, 3297 &iter->csa_finalize_work); 3298 } 3299 } 3300 ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work); 3301 3302 rcu_read_unlock(); 3303 } 3304 EXPORT_SYMBOL(ieee80211_csa_finish); 3305 3306 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3307 { 3308 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3309 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3310 struct ieee80211_local *local = sdata->local; 3311 3312 sdata->csa_block_tx = block_tx; 3313 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3314 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3315 } 3316 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3317 3318 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3319 u32 *changed) 3320 { 3321 int err; 3322 3323 switch (sdata->vif.type) { 3324 case NL80211_IFTYPE_AP: 3325 if (!sdata->u.ap.next_beacon) 3326 return -EINVAL; 3327 3328 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3329 NULL, NULL); 3330 ieee80211_free_next_beacon(sdata); 3331 3332 if (err < 0) 3333 return err; 3334 *changed |= err; 3335 break; 3336 case NL80211_IFTYPE_ADHOC: 3337 err = ieee80211_ibss_finish_csa(sdata); 3338 if (err < 0) 3339 return err; 3340 *changed |= err; 3341 break; 3342 #ifdef CONFIG_MAC80211_MESH 3343 case NL80211_IFTYPE_MESH_POINT: 3344 err = ieee80211_mesh_finish_csa(sdata); 3345 if (err < 0) 3346 return err; 3347 *changed |= err; 3348 break; 3349 #endif 3350 default: 3351 WARN_ON(1); 3352 return -EINVAL; 3353 } 3354 3355 return 0; 3356 } 3357 3358 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3359 { 3360 struct ieee80211_local *local = sdata->local; 3361 u32 changed = 0; 3362 int err; 3363 3364 sdata_assert_lock(sdata); 3365 lockdep_assert_held(&local->mtx); 3366 lockdep_assert_held(&local->chanctx_mtx); 3367 3368 /* 3369 * using reservation isn't immediate as it may be deferred until later 3370 * with multi-vif. once reservation is complete it will re-schedule the 3371 * work with no reserved_chanctx so verify chandef to check if it 3372 * completed successfully 3373 */ 3374 3375 if (sdata->reserved_chanctx) { 3376 /* 3377 * with multi-vif csa driver may call ieee80211_csa_finish() 3378 * many times while waiting for other interfaces to use their 3379 * reservations 3380 */ 3381 if (sdata->reserved_ready) 3382 return 0; 3383 3384 return ieee80211_vif_use_reserved_context(sdata); 3385 } 3386 3387 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3388 &sdata->csa_chandef)) 3389 return -EINVAL; 3390 3391 sdata->vif.csa_active = false; 3392 3393 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3394 if (err) 3395 return err; 3396 3397 ieee80211_bss_info_change_notify(sdata, changed); 3398 3399 if (sdata->csa_block_tx) { 3400 ieee80211_wake_vif_queues(local, sdata, 3401 IEEE80211_QUEUE_STOP_REASON_CSA); 3402 sdata->csa_block_tx = false; 3403 } 3404 3405 err = drv_post_channel_switch(sdata); 3406 if (err) 3407 return err; 3408 3409 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3410 3411 return 0; 3412 } 3413 3414 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3415 { 3416 if (__ieee80211_csa_finalize(sdata)) { 3417 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3418 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3419 GFP_KERNEL); 3420 } 3421 } 3422 3423 void ieee80211_csa_finalize_work(struct work_struct *work) 3424 { 3425 struct ieee80211_sub_if_data *sdata = 3426 container_of(work, struct ieee80211_sub_if_data, 3427 csa_finalize_work); 3428 struct ieee80211_local *local = sdata->local; 3429 3430 sdata_lock(sdata); 3431 mutex_lock(&local->mtx); 3432 mutex_lock(&local->chanctx_mtx); 3433 3434 /* AP might have been stopped while waiting for the lock. */ 3435 if (!sdata->vif.csa_active) 3436 goto unlock; 3437 3438 if (!ieee80211_sdata_running(sdata)) 3439 goto unlock; 3440 3441 ieee80211_csa_finalize(sdata); 3442 3443 unlock: 3444 mutex_unlock(&local->chanctx_mtx); 3445 mutex_unlock(&local->mtx); 3446 sdata_unlock(sdata); 3447 } 3448 3449 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3450 struct cfg80211_csa_settings *params, 3451 u32 *changed) 3452 { 3453 struct ieee80211_csa_settings csa = {}; 3454 int err; 3455 3456 switch (sdata->vif.type) { 3457 case NL80211_IFTYPE_AP: 3458 sdata->u.ap.next_beacon = 3459 cfg80211_beacon_dup(¶ms->beacon_after); 3460 if (!sdata->u.ap.next_beacon) 3461 return -ENOMEM; 3462 3463 /* 3464 * With a count of 0, we don't have to wait for any 3465 * TBTT before switching, so complete the CSA 3466 * immediately. In theory, with a count == 1 we 3467 * should delay the switch until just before the next 3468 * TBTT, but that would complicate things so we switch 3469 * immediately too. If we would delay the switch 3470 * until the next TBTT, we would have to set the probe 3471 * response here. 3472 * 3473 * TODO: A channel switch with count <= 1 without 3474 * sending a CSA action frame is kind of useless, 3475 * because the clients won't know we're changing 3476 * channels. The action frame must be implemented 3477 * either here or in the userspace. 3478 */ 3479 if (params->count <= 1) 3480 break; 3481 3482 if ((params->n_counter_offsets_beacon > 3483 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3484 (params->n_counter_offsets_presp > 3485 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3486 ieee80211_free_next_beacon(sdata); 3487 return -EINVAL; 3488 } 3489 3490 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3491 csa.counter_offsets_presp = params->counter_offsets_presp; 3492 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3493 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3494 csa.count = params->count; 3495 3496 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL); 3497 if (err < 0) { 3498 ieee80211_free_next_beacon(sdata); 3499 return err; 3500 } 3501 *changed |= err; 3502 3503 break; 3504 case NL80211_IFTYPE_ADHOC: 3505 if (!sdata->vif.bss_conf.ibss_joined) 3506 return -EINVAL; 3507 3508 if (params->chandef.width != sdata->u.ibss.chandef.width) 3509 return -EINVAL; 3510 3511 switch (params->chandef.width) { 3512 case NL80211_CHAN_WIDTH_40: 3513 if (cfg80211_get_chandef_type(¶ms->chandef) != 3514 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3515 return -EINVAL; 3516 break; 3517 case NL80211_CHAN_WIDTH_5: 3518 case NL80211_CHAN_WIDTH_10: 3519 case NL80211_CHAN_WIDTH_20_NOHT: 3520 case NL80211_CHAN_WIDTH_20: 3521 break; 3522 default: 3523 return -EINVAL; 3524 } 3525 3526 /* changes into another band are not supported */ 3527 if (sdata->u.ibss.chandef.chan->band != 3528 params->chandef.chan->band) 3529 return -EINVAL; 3530 3531 /* see comments in the NL80211_IFTYPE_AP block */ 3532 if (params->count > 1) { 3533 err = ieee80211_ibss_csa_beacon(sdata, params); 3534 if (err < 0) 3535 return err; 3536 *changed |= err; 3537 } 3538 3539 ieee80211_send_action_csa(sdata, params); 3540 3541 break; 3542 #ifdef CONFIG_MAC80211_MESH 3543 case NL80211_IFTYPE_MESH_POINT: { 3544 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3545 3546 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3547 return -EINVAL; 3548 3549 /* changes into another band are not supported */ 3550 if (sdata->vif.bss_conf.chandef.chan->band != 3551 params->chandef.chan->band) 3552 return -EINVAL; 3553 3554 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3555 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3556 if (!ifmsh->pre_value) 3557 ifmsh->pre_value = 1; 3558 else 3559 ifmsh->pre_value++; 3560 } 3561 3562 /* see comments in the NL80211_IFTYPE_AP block */ 3563 if (params->count > 1) { 3564 err = ieee80211_mesh_csa_beacon(sdata, params); 3565 if (err < 0) { 3566 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3567 return err; 3568 } 3569 *changed |= err; 3570 } 3571 3572 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3573 ieee80211_send_action_csa(sdata, params); 3574 3575 break; 3576 } 3577 #endif 3578 default: 3579 return -EOPNOTSUPP; 3580 } 3581 3582 return 0; 3583 } 3584 3585 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3586 { 3587 sdata->vif.color_change_active = false; 3588 3589 ieee80211_free_next_beacon(sdata); 3590 3591 cfg80211_color_change_aborted_notify(sdata->dev); 3592 } 3593 3594 static int 3595 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3596 struct cfg80211_csa_settings *params) 3597 { 3598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3599 struct ieee80211_local *local = sdata->local; 3600 struct ieee80211_channel_switch ch_switch; 3601 struct ieee80211_chanctx_conf *conf; 3602 struct ieee80211_chanctx *chanctx; 3603 u32 changed = 0; 3604 int err; 3605 3606 sdata_assert_lock(sdata); 3607 lockdep_assert_held(&local->mtx); 3608 3609 if (!list_empty(&local->roc_list) || local->scanning) 3610 return -EBUSY; 3611 3612 if (sdata->wdev.cac_started) 3613 return -EBUSY; 3614 3615 if (cfg80211_chandef_identical(¶ms->chandef, 3616 &sdata->vif.bss_conf.chandef)) 3617 return -EINVAL; 3618 3619 /* don't allow another channel switch if one is already active. */ 3620 if (sdata->vif.csa_active) 3621 return -EBUSY; 3622 3623 mutex_lock(&local->chanctx_mtx); 3624 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3625 lockdep_is_held(&local->chanctx_mtx)); 3626 if (!conf) { 3627 err = -EBUSY; 3628 goto out; 3629 } 3630 3631 if (params->chandef.chan->freq_offset) { 3632 /* this may work, but is untested */ 3633 err = -EOPNOTSUPP; 3634 goto out; 3635 } 3636 3637 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3638 3639 ch_switch.timestamp = 0; 3640 ch_switch.device_timestamp = 0; 3641 ch_switch.block_tx = params->block_tx; 3642 ch_switch.chandef = params->chandef; 3643 ch_switch.count = params->count; 3644 3645 err = drv_pre_channel_switch(sdata, &ch_switch); 3646 if (err) 3647 goto out; 3648 3649 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3650 chanctx->mode, 3651 params->radar_required); 3652 if (err) 3653 goto out; 3654 3655 /* if reservation is invalid then this will fail */ 3656 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3657 if (err) { 3658 ieee80211_vif_unreserve_chanctx(sdata); 3659 goto out; 3660 } 3661 3662 /* if there is a color change in progress, abort it */ 3663 if (sdata->vif.color_change_active) 3664 ieee80211_color_change_abort(sdata); 3665 3666 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3667 if (err) { 3668 ieee80211_vif_unreserve_chanctx(sdata); 3669 goto out; 3670 } 3671 3672 sdata->csa_chandef = params->chandef; 3673 sdata->csa_block_tx = params->block_tx; 3674 sdata->vif.csa_active = true; 3675 3676 if (sdata->csa_block_tx) 3677 ieee80211_stop_vif_queues(local, sdata, 3678 IEEE80211_QUEUE_STOP_REASON_CSA); 3679 3680 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3681 params->count, params->block_tx); 3682 3683 if (changed) { 3684 ieee80211_bss_info_change_notify(sdata, changed); 3685 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3686 } else { 3687 /* if the beacon didn't change, we can finalize immediately */ 3688 ieee80211_csa_finalize(sdata); 3689 } 3690 3691 out: 3692 mutex_unlock(&local->chanctx_mtx); 3693 return err; 3694 } 3695 3696 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3697 struct cfg80211_csa_settings *params) 3698 { 3699 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3700 struct ieee80211_local *local = sdata->local; 3701 int err; 3702 3703 mutex_lock(&local->mtx); 3704 err = __ieee80211_channel_switch(wiphy, dev, params); 3705 mutex_unlock(&local->mtx); 3706 3707 return err; 3708 } 3709 3710 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3711 { 3712 lockdep_assert_held(&local->mtx); 3713 3714 local->roc_cookie_counter++; 3715 3716 /* wow, you wrapped 64 bits ... more likely a bug */ 3717 if (WARN_ON(local->roc_cookie_counter == 0)) 3718 local->roc_cookie_counter++; 3719 3720 return local->roc_cookie_counter; 3721 } 3722 3723 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3724 u64 *cookie, gfp_t gfp) 3725 { 3726 unsigned long spin_flags; 3727 struct sk_buff *ack_skb; 3728 int id; 3729 3730 ack_skb = skb_copy(skb, gfp); 3731 if (!ack_skb) 3732 return -ENOMEM; 3733 3734 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3735 id = idr_alloc(&local->ack_status_frames, ack_skb, 3736 1, 0x2000, GFP_ATOMIC); 3737 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3738 3739 if (id < 0) { 3740 kfree_skb(ack_skb); 3741 return -ENOMEM; 3742 } 3743 3744 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3745 3746 *cookie = ieee80211_mgmt_tx_cookie(local); 3747 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3748 3749 return 0; 3750 } 3751 3752 static void 3753 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3754 struct wireless_dev *wdev, 3755 struct mgmt_frame_regs *upd) 3756 { 3757 struct ieee80211_local *local = wiphy_priv(wiphy); 3758 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3759 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3760 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3761 bool global_change, intf_change; 3762 3763 global_change = 3764 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3765 (local->rx_mcast_action_reg != 3766 !!(upd->global_mcast_stypes & action_mask)); 3767 local->probe_req_reg = upd->global_stypes & preq_mask; 3768 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3769 3770 intf_change = (sdata->vif.probe_req_reg != 3771 !!(upd->interface_stypes & preq_mask)) || 3772 (sdata->vif.rx_mcast_action_reg != 3773 !!(upd->interface_mcast_stypes & action_mask)); 3774 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3775 sdata->vif.rx_mcast_action_reg = 3776 upd->interface_mcast_stypes & action_mask; 3777 3778 if (!local->open_count) 3779 return; 3780 3781 if (intf_change && ieee80211_sdata_running(sdata)) 3782 drv_config_iface_filter(local, sdata, 3783 sdata->vif.probe_req_reg ? 3784 FIF_PROBE_REQ : 0, 3785 FIF_PROBE_REQ); 3786 3787 if (global_change) 3788 ieee80211_configure_filter(local); 3789 } 3790 3791 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3792 { 3793 struct ieee80211_local *local = wiphy_priv(wiphy); 3794 3795 if (local->started) 3796 return -EOPNOTSUPP; 3797 3798 return drv_set_antenna(local, tx_ant, rx_ant); 3799 } 3800 3801 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3802 { 3803 struct ieee80211_local *local = wiphy_priv(wiphy); 3804 3805 return drv_get_antenna(local, tx_ant, rx_ant); 3806 } 3807 3808 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3809 struct net_device *dev, 3810 struct cfg80211_gtk_rekey_data *data) 3811 { 3812 struct ieee80211_local *local = wiphy_priv(wiphy); 3813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3814 3815 if (!local->ops->set_rekey_data) 3816 return -EOPNOTSUPP; 3817 3818 drv_set_rekey_data(local, sdata, data); 3819 3820 return 0; 3821 } 3822 3823 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3824 const u8 *peer, u64 *cookie) 3825 { 3826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3827 struct ieee80211_local *local = sdata->local; 3828 struct ieee80211_qos_hdr *nullfunc; 3829 struct sk_buff *skb; 3830 int size = sizeof(*nullfunc); 3831 __le16 fc; 3832 bool qos; 3833 struct ieee80211_tx_info *info; 3834 struct sta_info *sta; 3835 struct ieee80211_chanctx_conf *chanctx_conf; 3836 enum nl80211_band band; 3837 int ret; 3838 3839 /* the lock is needed to assign the cookie later */ 3840 mutex_lock(&local->mtx); 3841 3842 rcu_read_lock(); 3843 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3844 if (WARN_ON(!chanctx_conf)) { 3845 ret = -EINVAL; 3846 goto unlock; 3847 } 3848 band = chanctx_conf->def.chan->band; 3849 sta = sta_info_get_bss(sdata, peer); 3850 if (sta) { 3851 qos = sta->sta.wme; 3852 } else { 3853 ret = -ENOLINK; 3854 goto unlock; 3855 } 3856 3857 if (qos) { 3858 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3859 IEEE80211_STYPE_QOS_NULLFUNC | 3860 IEEE80211_FCTL_FROMDS); 3861 } else { 3862 size -= 2; 3863 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3864 IEEE80211_STYPE_NULLFUNC | 3865 IEEE80211_FCTL_FROMDS); 3866 } 3867 3868 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3869 if (!skb) { 3870 ret = -ENOMEM; 3871 goto unlock; 3872 } 3873 3874 skb->dev = dev; 3875 3876 skb_reserve(skb, local->hw.extra_tx_headroom); 3877 3878 nullfunc = skb_put(skb, size); 3879 nullfunc->frame_control = fc; 3880 nullfunc->duration_id = 0; 3881 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3882 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3883 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3884 nullfunc->seq_ctrl = 0; 3885 3886 info = IEEE80211_SKB_CB(skb); 3887 3888 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3889 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3890 info->band = band; 3891 3892 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3893 skb->priority = 7; 3894 if (qos) 3895 nullfunc->qos_ctrl = cpu_to_le16(7); 3896 3897 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3898 if (ret) { 3899 kfree_skb(skb); 3900 goto unlock; 3901 } 3902 3903 local_bh_disable(); 3904 ieee80211_xmit(sdata, sta, skb); 3905 local_bh_enable(); 3906 3907 ret = 0; 3908 unlock: 3909 rcu_read_unlock(); 3910 mutex_unlock(&local->mtx); 3911 3912 return ret; 3913 } 3914 3915 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3916 struct wireless_dev *wdev, 3917 struct cfg80211_chan_def *chandef) 3918 { 3919 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3920 struct ieee80211_local *local = wiphy_priv(wiphy); 3921 struct ieee80211_chanctx_conf *chanctx_conf; 3922 int ret = -ENODATA; 3923 3924 rcu_read_lock(); 3925 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3926 if (chanctx_conf) { 3927 *chandef = sdata->vif.bss_conf.chandef; 3928 ret = 0; 3929 } else if (local->open_count > 0 && 3930 local->open_count == local->monitors && 3931 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3932 if (local->use_chanctx) 3933 *chandef = local->monitor_chandef; 3934 else 3935 *chandef = local->_oper_chandef; 3936 ret = 0; 3937 } 3938 rcu_read_unlock(); 3939 3940 return ret; 3941 } 3942 3943 #ifdef CONFIG_PM 3944 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3945 { 3946 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3947 } 3948 #endif 3949 3950 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3951 struct net_device *dev, 3952 struct cfg80211_qos_map *qos_map) 3953 { 3954 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3955 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3956 3957 if (qos_map) { 3958 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3959 if (!new_qos_map) 3960 return -ENOMEM; 3961 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3962 } else { 3963 /* A NULL qos_map was passed to disable QoS mapping */ 3964 new_qos_map = NULL; 3965 } 3966 3967 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3968 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3969 if (old_qos_map) 3970 kfree_rcu(old_qos_map, rcu_head); 3971 3972 return 0; 3973 } 3974 3975 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3976 struct net_device *dev, 3977 struct cfg80211_chan_def *chandef) 3978 { 3979 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3980 int ret; 3981 u32 changed = 0; 3982 3983 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3984 if (ret == 0) 3985 ieee80211_bss_info_change_notify(sdata, changed); 3986 3987 return ret; 3988 } 3989 3990 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3991 u8 tsid, const u8 *peer, u8 up, 3992 u16 admitted_time) 3993 { 3994 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3995 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3996 int ac = ieee802_1d_to_ac[up]; 3997 3998 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3999 return -EOPNOTSUPP; 4000 4001 if (!(sdata->wmm_acm & BIT(up))) 4002 return -EINVAL; 4003 4004 if (ifmgd->tx_tspec[ac].admitted_time) 4005 return -EBUSY; 4006 4007 if (admitted_time) { 4008 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4009 ifmgd->tx_tspec[ac].tsid = tsid; 4010 ifmgd->tx_tspec[ac].up = up; 4011 } 4012 4013 return 0; 4014 } 4015 4016 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4017 u8 tsid, const u8 *peer) 4018 { 4019 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4020 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4021 struct ieee80211_local *local = wiphy_priv(wiphy); 4022 int ac; 4023 4024 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4025 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4026 4027 /* skip unused entries */ 4028 if (!tx_tspec->admitted_time) 4029 continue; 4030 4031 if (tx_tspec->tsid != tsid) 4032 continue; 4033 4034 /* due to this new packets will be reassigned to non-ACM ACs */ 4035 tx_tspec->up = -1; 4036 4037 /* Make sure that all packets have been sent to avoid to 4038 * restore the QoS params on packets that are still on the 4039 * queues. 4040 */ 4041 synchronize_net(); 4042 ieee80211_flush_queues(local, sdata, false); 4043 4044 /* restore the normal QoS parameters 4045 * (unconditionally to avoid races) 4046 */ 4047 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4048 tx_tspec->downgraded = false; 4049 ieee80211_sta_handle_tspec_ac_params(sdata); 4050 4051 /* finally clear all the data */ 4052 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4053 4054 return 0; 4055 } 4056 4057 return -ENOENT; 4058 } 4059 4060 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4061 u8 inst_id, 4062 enum nl80211_nan_func_term_reason reason, 4063 gfp_t gfp) 4064 { 4065 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4066 struct cfg80211_nan_func *func; 4067 u64 cookie; 4068 4069 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4070 return; 4071 4072 spin_lock_bh(&sdata->u.nan.func_lock); 4073 4074 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4075 if (WARN_ON(!func)) { 4076 spin_unlock_bh(&sdata->u.nan.func_lock); 4077 return; 4078 } 4079 4080 cookie = func->cookie; 4081 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4082 4083 spin_unlock_bh(&sdata->u.nan.func_lock); 4084 4085 cfg80211_free_nan_func(func); 4086 4087 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4088 reason, cookie, gfp); 4089 } 4090 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4091 4092 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4093 struct cfg80211_nan_match_params *match, 4094 gfp_t gfp) 4095 { 4096 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4097 struct cfg80211_nan_func *func; 4098 4099 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4100 return; 4101 4102 spin_lock_bh(&sdata->u.nan.func_lock); 4103 4104 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4105 if (WARN_ON(!func)) { 4106 spin_unlock_bh(&sdata->u.nan.func_lock); 4107 return; 4108 } 4109 match->cookie = func->cookie; 4110 4111 spin_unlock_bh(&sdata->u.nan.func_lock); 4112 4113 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4114 } 4115 EXPORT_SYMBOL(ieee80211_nan_func_match); 4116 4117 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4118 struct net_device *dev, 4119 const bool enabled) 4120 { 4121 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4122 4123 sdata->u.ap.multicast_to_unicast = enabled; 4124 4125 return 0; 4126 } 4127 4128 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4129 struct txq_info *txqi) 4130 { 4131 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4132 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4133 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4134 } 4135 4136 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4137 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4138 txqstats->backlog_packets = txqi->tin.backlog_packets; 4139 } 4140 4141 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4142 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4143 txqstats->flows = txqi->tin.flows; 4144 } 4145 4146 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4147 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4148 txqstats->drops = txqi->cstats.drop_count; 4149 } 4150 4151 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4152 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4153 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4154 } 4155 4156 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4157 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4158 txqstats->overlimit = txqi->tin.overlimit; 4159 } 4160 4161 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4162 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4163 txqstats->collisions = txqi->tin.collisions; 4164 } 4165 4166 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4167 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4168 txqstats->tx_bytes = txqi->tin.tx_bytes; 4169 } 4170 4171 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4172 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4173 txqstats->tx_packets = txqi->tin.tx_packets; 4174 } 4175 } 4176 4177 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4178 struct wireless_dev *wdev, 4179 struct cfg80211_txq_stats *txqstats) 4180 { 4181 struct ieee80211_local *local = wiphy_priv(wiphy); 4182 struct ieee80211_sub_if_data *sdata; 4183 int ret = 0; 4184 4185 if (!local->ops->wake_tx_queue) 4186 return 1; 4187 4188 spin_lock_bh(&local->fq.lock); 4189 rcu_read_lock(); 4190 4191 if (wdev) { 4192 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4193 if (!sdata->vif.txq) { 4194 ret = 1; 4195 goto out; 4196 } 4197 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4198 } else { 4199 /* phy stats */ 4200 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4201 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4202 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4203 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4204 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4205 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4206 txqstats->backlog_packets = local->fq.backlog; 4207 txqstats->backlog_bytes = local->fq.memory_usage; 4208 txqstats->overlimit = local->fq.overlimit; 4209 txqstats->overmemory = local->fq.overmemory; 4210 txqstats->collisions = local->fq.collisions; 4211 txqstats->max_flows = local->fq.flows_cnt; 4212 } 4213 4214 out: 4215 rcu_read_unlock(); 4216 spin_unlock_bh(&local->fq.lock); 4217 4218 return ret; 4219 } 4220 4221 static int 4222 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4223 struct net_device *dev, 4224 struct cfg80211_ftm_responder_stats *ftm_stats) 4225 { 4226 struct ieee80211_local *local = wiphy_priv(wiphy); 4227 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4228 4229 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4230 } 4231 4232 static int 4233 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4234 struct cfg80211_pmsr_request *request) 4235 { 4236 struct ieee80211_local *local = wiphy_priv(wiphy); 4237 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4238 4239 return drv_start_pmsr(local, sdata, request); 4240 } 4241 4242 static void 4243 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4244 struct cfg80211_pmsr_request *request) 4245 { 4246 struct ieee80211_local *local = wiphy_priv(wiphy); 4247 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4248 4249 return drv_abort_pmsr(local, sdata, request); 4250 } 4251 4252 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4253 struct net_device *dev, 4254 struct cfg80211_tid_config *tid_conf) 4255 { 4256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4257 struct sta_info *sta; 4258 int ret; 4259 4260 if (!sdata->local->ops->set_tid_config) 4261 return -EOPNOTSUPP; 4262 4263 if (!tid_conf->peer) 4264 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4265 4266 mutex_lock(&sdata->local->sta_mtx); 4267 sta = sta_info_get_bss(sdata, tid_conf->peer); 4268 if (!sta) { 4269 mutex_unlock(&sdata->local->sta_mtx); 4270 return -ENOENT; 4271 } 4272 4273 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4274 mutex_unlock(&sdata->local->sta_mtx); 4275 4276 return ret; 4277 } 4278 4279 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4280 struct net_device *dev, 4281 const u8 *peer, u8 tids) 4282 { 4283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4284 struct sta_info *sta; 4285 int ret; 4286 4287 if (!sdata->local->ops->reset_tid_config) 4288 return -EOPNOTSUPP; 4289 4290 if (!peer) 4291 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4292 4293 mutex_lock(&sdata->local->sta_mtx); 4294 sta = sta_info_get_bss(sdata, peer); 4295 if (!sta) { 4296 mutex_unlock(&sdata->local->sta_mtx); 4297 return -ENOENT; 4298 } 4299 4300 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4301 mutex_unlock(&sdata->local->sta_mtx); 4302 4303 return ret; 4304 } 4305 4306 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4307 struct cfg80211_sar_specs *sar) 4308 { 4309 struct ieee80211_local *local = wiphy_priv(wiphy); 4310 4311 if (!local->ops->set_sar_specs) 4312 return -EOPNOTSUPP; 4313 4314 return local->ops->set_sar_specs(&local->hw, sar); 4315 } 4316 4317 static int 4318 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4319 u32 *changed) 4320 { 4321 switch (sdata->vif.type) { 4322 case NL80211_IFTYPE_AP: { 4323 int ret; 4324 4325 if (!sdata->u.ap.next_beacon) 4326 return -EINVAL; 4327 4328 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 4329 NULL, NULL); 4330 ieee80211_free_next_beacon(sdata); 4331 4332 if (ret < 0) 4333 return ret; 4334 4335 *changed |= ret; 4336 break; 4337 } 4338 default: 4339 WARN_ON_ONCE(1); 4340 return -EINVAL; 4341 } 4342 4343 return 0; 4344 } 4345 4346 static int 4347 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4348 struct cfg80211_color_change_settings *params, 4349 u32 *changed) 4350 { 4351 struct ieee80211_color_change_settings color_change = {}; 4352 int err; 4353 4354 switch (sdata->vif.type) { 4355 case NL80211_IFTYPE_AP: 4356 sdata->u.ap.next_beacon = 4357 cfg80211_beacon_dup(¶ms->beacon_next); 4358 if (!sdata->u.ap.next_beacon) 4359 return -ENOMEM; 4360 4361 if (params->count <= 1) 4362 break; 4363 4364 color_change.counter_offset_beacon = 4365 params->counter_offset_beacon; 4366 color_change.counter_offset_presp = 4367 params->counter_offset_presp; 4368 color_change.count = params->count; 4369 4370 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change, 4371 NULL, &color_change); 4372 if (err < 0) { 4373 ieee80211_free_next_beacon(sdata); 4374 return err; 4375 } 4376 *changed |= err; 4377 break; 4378 default: 4379 return -EOPNOTSUPP; 4380 } 4381 4382 return 0; 4383 } 4384 4385 static void 4386 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4387 u8 color, int enable, u32 changed) 4388 { 4389 sdata->vif.bss_conf.he_bss_color.color = color; 4390 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4391 changed |= BSS_CHANGED_HE_BSS_COLOR; 4392 4393 ieee80211_bss_info_change_notify(sdata, changed); 4394 4395 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4396 struct ieee80211_sub_if_data *child; 4397 4398 mutex_lock(&sdata->local->iflist_mtx); 4399 list_for_each_entry(child, &sdata->local->interfaces, list) { 4400 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4401 child->vif.bss_conf.he_bss_color.color = color; 4402 child->vif.bss_conf.he_bss_color.enabled = enable; 4403 ieee80211_bss_info_change_notify(child, 4404 BSS_CHANGED_HE_BSS_COLOR); 4405 } 4406 } 4407 mutex_unlock(&sdata->local->iflist_mtx); 4408 } 4409 } 4410 4411 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4412 { 4413 struct ieee80211_local *local = sdata->local; 4414 u32 changed = 0; 4415 int err; 4416 4417 sdata_assert_lock(sdata); 4418 lockdep_assert_held(&local->mtx); 4419 4420 sdata->vif.color_change_active = false; 4421 4422 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4423 if (err) { 4424 cfg80211_color_change_aborted_notify(sdata->dev); 4425 return err; 4426 } 4427 4428 ieee80211_color_change_bss_config_notify(sdata, 4429 sdata->vif.color_change_color, 4430 1, changed); 4431 cfg80211_color_change_notify(sdata->dev); 4432 4433 return 0; 4434 } 4435 4436 void ieee80211_color_change_finalize_work(struct work_struct *work) 4437 { 4438 struct ieee80211_sub_if_data *sdata = 4439 container_of(work, struct ieee80211_sub_if_data, 4440 color_change_finalize_work); 4441 struct ieee80211_local *local = sdata->local; 4442 4443 sdata_lock(sdata); 4444 mutex_lock(&local->mtx); 4445 4446 /* AP might have been stopped while waiting for the lock. */ 4447 if (!sdata->vif.color_change_active) 4448 goto unlock; 4449 4450 if (!ieee80211_sdata_running(sdata)) 4451 goto unlock; 4452 4453 ieee80211_color_change_finalize(sdata); 4454 4455 unlock: 4456 mutex_unlock(&local->mtx); 4457 sdata_unlock(sdata); 4458 } 4459 4460 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4461 { 4462 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4463 4464 ieee80211_queue_work(&sdata->local->hw, 4465 &sdata->color_change_finalize_work); 4466 } 4467 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4468 4469 void 4470 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4471 u64 color_bitmap) 4472 { 4473 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4474 4475 if (sdata->vif.color_change_active || sdata->vif.csa_active) 4476 return; 4477 4478 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap); 4479 } 4480 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); 4481 4482 static int 4483 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4484 struct cfg80211_color_change_settings *params) 4485 { 4486 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4487 struct ieee80211_local *local = sdata->local; 4488 u32 changed = 0; 4489 int err; 4490 4491 sdata_assert_lock(sdata); 4492 4493 if (sdata->vif.bss_conf.nontransmitted) 4494 return -EINVAL; 4495 4496 mutex_lock(&local->mtx); 4497 4498 /* don't allow another color change if one is already active or if csa 4499 * is active 4500 */ 4501 if (sdata->vif.color_change_active || sdata->vif.csa_active) { 4502 err = -EBUSY; 4503 goto out; 4504 } 4505 4506 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4507 if (err) 4508 goto out; 4509 4510 sdata->vif.color_change_active = true; 4511 sdata->vif.color_change_color = params->color; 4512 4513 cfg80211_color_change_started_notify(sdata->dev, params->count); 4514 4515 if (changed) 4516 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4517 else 4518 /* if the beacon didn't change, we can finalize immediately */ 4519 ieee80211_color_change_finalize(sdata); 4520 4521 out: 4522 mutex_unlock(&local->mtx); 4523 4524 return err; 4525 } 4526 4527 static int 4528 ieee80211_set_radar_background(struct wiphy *wiphy, 4529 struct cfg80211_chan_def *chandef) 4530 { 4531 struct ieee80211_local *local = wiphy_priv(wiphy); 4532 4533 if (!local->ops->set_radar_background) 4534 return -EOPNOTSUPP; 4535 4536 return local->ops->set_radar_background(&local->hw, chandef); 4537 } 4538 4539 const struct cfg80211_ops mac80211_config_ops = { 4540 .add_virtual_intf = ieee80211_add_iface, 4541 .del_virtual_intf = ieee80211_del_iface, 4542 .change_virtual_intf = ieee80211_change_iface, 4543 .start_p2p_device = ieee80211_start_p2p_device, 4544 .stop_p2p_device = ieee80211_stop_p2p_device, 4545 .add_key = ieee80211_add_key, 4546 .del_key = ieee80211_del_key, 4547 .get_key = ieee80211_get_key, 4548 .set_default_key = ieee80211_config_default_key, 4549 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4550 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4551 .start_ap = ieee80211_start_ap, 4552 .change_beacon = ieee80211_change_beacon, 4553 .stop_ap = ieee80211_stop_ap, 4554 .add_station = ieee80211_add_station, 4555 .del_station = ieee80211_del_station, 4556 .change_station = ieee80211_change_station, 4557 .get_station = ieee80211_get_station, 4558 .dump_station = ieee80211_dump_station, 4559 .dump_survey = ieee80211_dump_survey, 4560 #ifdef CONFIG_MAC80211_MESH 4561 .add_mpath = ieee80211_add_mpath, 4562 .del_mpath = ieee80211_del_mpath, 4563 .change_mpath = ieee80211_change_mpath, 4564 .get_mpath = ieee80211_get_mpath, 4565 .dump_mpath = ieee80211_dump_mpath, 4566 .get_mpp = ieee80211_get_mpp, 4567 .dump_mpp = ieee80211_dump_mpp, 4568 .update_mesh_config = ieee80211_update_mesh_config, 4569 .get_mesh_config = ieee80211_get_mesh_config, 4570 .join_mesh = ieee80211_join_mesh, 4571 .leave_mesh = ieee80211_leave_mesh, 4572 #endif 4573 .join_ocb = ieee80211_join_ocb, 4574 .leave_ocb = ieee80211_leave_ocb, 4575 .change_bss = ieee80211_change_bss, 4576 .set_txq_params = ieee80211_set_txq_params, 4577 .set_monitor_channel = ieee80211_set_monitor_channel, 4578 .suspend = ieee80211_suspend, 4579 .resume = ieee80211_resume, 4580 .scan = ieee80211_scan, 4581 .abort_scan = ieee80211_abort_scan, 4582 .sched_scan_start = ieee80211_sched_scan_start, 4583 .sched_scan_stop = ieee80211_sched_scan_stop, 4584 .auth = ieee80211_auth, 4585 .assoc = ieee80211_assoc, 4586 .deauth = ieee80211_deauth, 4587 .disassoc = ieee80211_disassoc, 4588 .join_ibss = ieee80211_join_ibss, 4589 .leave_ibss = ieee80211_leave_ibss, 4590 .set_mcast_rate = ieee80211_set_mcast_rate, 4591 .set_wiphy_params = ieee80211_set_wiphy_params, 4592 .set_tx_power = ieee80211_set_tx_power, 4593 .get_tx_power = ieee80211_get_tx_power, 4594 .rfkill_poll = ieee80211_rfkill_poll, 4595 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4596 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4597 .set_power_mgmt = ieee80211_set_power_mgmt, 4598 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4599 .remain_on_channel = ieee80211_remain_on_channel, 4600 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4601 .mgmt_tx = ieee80211_mgmt_tx, 4602 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4603 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4604 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4605 .update_mgmt_frame_registrations = 4606 ieee80211_update_mgmt_frame_registrations, 4607 .set_antenna = ieee80211_set_antenna, 4608 .get_antenna = ieee80211_get_antenna, 4609 .set_rekey_data = ieee80211_set_rekey_data, 4610 .tdls_oper = ieee80211_tdls_oper, 4611 .tdls_mgmt = ieee80211_tdls_mgmt, 4612 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4613 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4614 .probe_client = ieee80211_probe_client, 4615 .set_noack_map = ieee80211_set_noack_map, 4616 #ifdef CONFIG_PM 4617 .set_wakeup = ieee80211_set_wakeup, 4618 #endif 4619 .get_channel = ieee80211_cfg_get_channel, 4620 .start_radar_detection = ieee80211_start_radar_detection, 4621 .end_cac = ieee80211_end_cac, 4622 .channel_switch = ieee80211_channel_switch, 4623 .set_qos_map = ieee80211_set_qos_map, 4624 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4625 .add_tx_ts = ieee80211_add_tx_ts, 4626 .del_tx_ts = ieee80211_del_tx_ts, 4627 .start_nan = ieee80211_start_nan, 4628 .stop_nan = ieee80211_stop_nan, 4629 .nan_change_conf = ieee80211_nan_change_conf, 4630 .add_nan_func = ieee80211_add_nan_func, 4631 .del_nan_func = ieee80211_del_nan_func, 4632 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4633 .tx_control_port = ieee80211_tx_control_port, 4634 .get_txq_stats = ieee80211_get_txq_stats, 4635 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4636 .start_pmsr = ieee80211_start_pmsr, 4637 .abort_pmsr = ieee80211_abort_pmsr, 4638 .probe_mesh_link = ieee80211_probe_mesh_link, 4639 .set_tid_config = ieee80211_set_tid_config, 4640 .reset_tid_config = ieee80211_reset_tid_config, 4641 .set_sar_specs = ieee80211_set_sar_specs, 4642 .color_change = ieee80211_color_change, 4643 .set_radar_background = ieee80211_set_radar_background, 4644 }; 4645