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, sta->gtk[key_idx]); 574 } else 575 key = key_mtx_dereference(local, sdata->keys[key_idx]); 576 577 if (!key) { 578 ret = -ENOENT; 579 goto out_unlock; 580 } 581 582 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 583 584 ret = 0; 585 out_unlock: 586 mutex_unlock(&local->key_mtx); 587 mutex_unlock(&local->sta_mtx); 588 589 return ret; 590 } 591 592 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 593 u8 key_idx, bool pairwise, const u8 *mac_addr, 594 void *cookie, 595 void (*callback)(void *cookie, 596 struct key_params *params)) 597 { 598 struct ieee80211_sub_if_data *sdata; 599 struct sta_info *sta = NULL; 600 u8 seq[6] = {0}; 601 struct key_params params; 602 struct ieee80211_key *key = NULL; 603 u64 pn64; 604 u32 iv32; 605 u16 iv16; 606 int err = -ENOENT; 607 struct ieee80211_key_seq kseq = {}; 608 609 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 610 611 rcu_read_lock(); 612 613 if (mac_addr) { 614 sta = sta_info_get_bss(sdata, mac_addr); 615 if (!sta) 616 goto out; 617 618 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 619 key = rcu_dereference(sta->ptk[key_idx]); 620 else if (!pairwise && 621 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 622 NUM_DEFAULT_BEACON_KEYS) 623 key = rcu_dereference(sta->gtk[key_idx]); 624 } else 625 key = rcu_dereference(sdata->keys[key_idx]); 626 627 if (!key) 628 goto out; 629 630 memset(¶ms, 0, sizeof(params)); 631 632 params.cipher = key->conf.cipher; 633 634 switch (key->conf.cipher) { 635 case WLAN_CIPHER_SUITE_TKIP: 636 pn64 = atomic64_read(&key->conf.tx_pn); 637 iv32 = TKIP_PN_TO_IV32(pn64); 638 iv16 = TKIP_PN_TO_IV16(pn64); 639 640 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 641 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 642 drv_get_key_seq(sdata->local, key, &kseq); 643 iv32 = kseq.tkip.iv32; 644 iv16 = kseq.tkip.iv16; 645 } 646 647 seq[0] = iv16 & 0xff; 648 seq[1] = (iv16 >> 8) & 0xff; 649 seq[2] = iv32 & 0xff; 650 seq[3] = (iv32 >> 8) & 0xff; 651 seq[4] = (iv32 >> 16) & 0xff; 652 seq[5] = (iv32 >> 24) & 0xff; 653 params.seq = seq; 654 params.seq_len = 6; 655 break; 656 case WLAN_CIPHER_SUITE_CCMP: 657 case WLAN_CIPHER_SUITE_CCMP_256: 658 case WLAN_CIPHER_SUITE_AES_CMAC: 659 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 660 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 661 offsetof(typeof(kseq), aes_cmac)); 662 fallthrough; 663 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 664 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 665 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 666 offsetof(typeof(kseq), aes_gmac)); 667 fallthrough; 668 case WLAN_CIPHER_SUITE_GCMP: 669 case WLAN_CIPHER_SUITE_GCMP_256: 670 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 671 offsetof(typeof(kseq), gcmp)); 672 673 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 674 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 675 drv_get_key_seq(sdata->local, key, &kseq); 676 memcpy(seq, kseq.ccmp.pn, 6); 677 } else { 678 pn64 = atomic64_read(&key->conf.tx_pn); 679 seq[0] = pn64; 680 seq[1] = pn64 >> 8; 681 seq[2] = pn64 >> 16; 682 seq[3] = pn64 >> 24; 683 seq[4] = pn64 >> 32; 684 seq[5] = pn64 >> 40; 685 } 686 params.seq = seq; 687 params.seq_len = 6; 688 break; 689 default: 690 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 691 break; 692 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 693 break; 694 drv_get_key_seq(sdata->local, key, &kseq); 695 params.seq = kseq.hw.seq; 696 params.seq_len = kseq.hw.seq_len; 697 break; 698 } 699 700 params.key = key->conf.key; 701 params.key_len = key->conf.keylen; 702 703 callback(cookie, ¶ms); 704 err = 0; 705 706 out: 707 rcu_read_unlock(); 708 return err; 709 } 710 711 static int ieee80211_config_default_key(struct wiphy *wiphy, 712 struct net_device *dev, 713 u8 key_idx, bool uni, 714 bool multi) 715 { 716 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 717 718 ieee80211_set_default_key(sdata, key_idx, uni, multi); 719 720 return 0; 721 } 722 723 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 724 struct net_device *dev, 725 u8 key_idx) 726 { 727 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 728 729 ieee80211_set_default_mgmt_key(sdata, key_idx); 730 731 return 0; 732 } 733 734 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 735 struct net_device *dev, 736 u8 key_idx) 737 { 738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 739 740 ieee80211_set_default_beacon_key(sdata, key_idx); 741 742 return 0; 743 } 744 745 void sta_set_rate_info_tx(struct sta_info *sta, 746 const struct ieee80211_tx_rate *rate, 747 struct rate_info *rinfo) 748 { 749 rinfo->flags = 0; 750 if (rate->flags & IEEE80211_TX_RC_MCS) { 751 rinfo->flags |= RATE_INFO_FLAGS_MCS; 752 rinfo->mcs = rate->idx; 753 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 754 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 755 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 756 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 757 } else { 758 struct ieee80211_supported_band *sband; 759 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 760 u16 brate; 761 762 sband = ieee80211_get_sband(sta->sdata); 763 WARN_ON_ONCE(sband && !sband->bitrates); 764 if (sband && sband->bitrates) { 765 brate = sband->bitrates[rate->idx].bitrate; 766 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 767 } 768 } 769 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 770 rinfo->bw = RATE_INFO_BW_40; 771 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 772 rinfo->bw = RATE_INFO_BW_80; 773 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 774 rinfo->bw = RATE_INFO_BW_160; 775 else 776 rinfo->bw = RATE_INFO_BW_20; 777 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 778 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 779 } 780 781 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 782 int idx, u8 *mac, struct station_info *sinfo) 783 { 784 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 785 struct ieee80211_local *local = sdata->local; 786 struct sta_info *sta; 787 int ret = -ENOENT; 788 789 mutex_lock(&local->sta_mtx); 790 791 sta = sta_info_get_by_idx(sdata, idx); 792 if (sta) { 793 ret = 0; 794 memcpy(mac, sta->sta.addr, ETH_ALEN); 795 sta_set_sinfo(sta, sinfo, true); 796 } 797 798 mutex_unlock(&local->sta_mtx); 799 800 return ret; 801 } 802 803 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 804 int idx, struct survey_info *survey) 805 { 806 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 807 808 return drv_get_survey(local, idx, survey); 809 } 810 811 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 812 const u8 *mac, struct station_info *sinfo) 813 { 814 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 815 struct ieee80211_local *local = sdata->local; 816 struct sta_info *sta; 817 int ret = -ENOENT; 818 819 mutex_lock(&local->sta_mtx); 820 821 sta = sta_info_get_bss(sdata, mac); 822 if (sta) { 823 ret = 0; 824 sta_set_sinfo(sta, sinfo, true); 825 } 826 827 mutex_unlock(&local->sta_mtx); 828 829 return ret; 830 } 831 832 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 833 struct cfg80211_chan_def *chandef) 834 { 835 struct ieee80211_local *local = wiphy_priv(wiphy); 836 struct ieee80211_sub_if_data *sdata; 837 int ret = 0; 838 839 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 840 return 0; 841 842 mutex_lock(&local->mtx); 843 if (local->use_chanctx) { 844 sdata = wiphy_dereference(local->hw.wiphy, 845 local->monitor_sdata); 846 if (sdata) { 847 ieee80211_vif_release_channel(sdata); 848 ret = ieee80211_vif_use_channel(sdata, chandef, 849 IEEE80211_CHANCTX_EXCLUSIVE); 850 } 851 } else if (local->open_count == local->monitors) { 852 local->_oper_chandef = *chandef; 853 ieee80211_hw_config(local, 0); 854 } 855 856 if (ret == 0) 857 local->monitor_chandef = *chandef; 858 mutex_unlock(&local->mtx); 859 860 return ret; 861 } 862 863 static int 864 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 865 const u8 *resp, size_t resp_len, 866 const struct ieee80211_csa_settings *csa, 867 const struct ieee80211_color_change_settings *cca) 868 { 869 struct probe_resp *new, *old; 870 871 if (!resp || !resp_len) 872 return 1; 873 874 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 875 876 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 877 if (!new) 878 return -ENOMEM; 879 880 new->len = resp_len; 881 memcpy(new->data, resp, resp_len); 882 883 if (csa) 884 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 885 csa->n_counter_offsets_presp * 886 sizeof(new->cntdwn_counter_offsets[0])); 887 else if (cca) 888 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 889 890 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 891 if (old) 892 kfree_rcu(old, rcu_head); 893 894 return 0; 895 } 896 897 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 898 struct cfg80211_fils_discovery *params) 899 { 900 struct fils_discovery_data *new, *old = NULL; 901 struct ieee80211_fils_discovery *fd; 902 903 if (!params->tmpl || !params->tmpl_len) 904 return -EINVAL; 905 906 fd = &sdata->vif.bss_conf.fils_discovery; 907 fd->min_interval = params->min_interval; 908 fd->max_interval = params->max_interval; 909 910 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata); 911 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 912 if (!new) 913 return -ENOMEM; 914 new->len = params->tmpl_len; 915 memcpy(new->data, params->tmpl, params->tmpl_len); 916 rcu_assign_pointer(sdata->u.ap.fils_discovery, new); 917 918 if (old) 919 kfree_rcu(old, rcu_head); 920 921 return 0; 922 } 923 924 static int 925 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 926 struct cfg80211_unsol_bcast_probe_resp *params) 927 { 928 struct unsol_bcast_probe_resp_data *new, *old = NULL; 929 930 if (!params->tmpl || !params->tmpl_len) 931 return -EINVAL; 932 933 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); 934 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 935 if (!new) 936 return -ENOMEM; 937 new->len = params->tmpl_len; 938 memcpy(new->data, params->tmpl, params->tmpl_len); 939 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); 940 941 if (old) 942 kfree_rcu(old, rcu_head); 943 944 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = 945 params->interval; 946 947 return 0; 948 } 949 950 static int ieee80211_set_ftm_responder_params( 951 struct ieee80211_sub_if_data *sdata, 952 const u8 *lci, size_t lci_len, 953 const u8 *civicloc, size_t civicloc_len) 954 { 955 struct ieee80211_ftm_responder_params *new, *old; 956 struct ieee80211_bss_conf *bss_conf; 957 u8 *pos; 958 int len; 959 960 if (!lci_len && !civicloc_len) 961 return 0; 962 963 bss_conf = &sdata->vif.bss_conf; 964 old = bss_conf->ftmr_params; 965 len = lci_len + civicloc_len; 966 967 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 968 if (!new) 969 return -ENOMEM; 970 971 pos = (u8 *)(new + 1); 972 if (lci_len) { 973 new->lci_len = lci_len; 974 new->lci = pos; 975 memcpy(pos, lci, lci_len); 976 pos += lci_len; 977 } 978 979 if (civicloc_len) { 980 new->civicloc_len = civicloc_len; 981 new->civicloc = pos; 982 memcpy(pos, civicloc, civicloc_len); 983 pos += civicloc_len; 984 } 985 986 bss_conf->ftmr_params = new; 987 kfree(old); 988 989 return 0; 990 } 991 992 static int 993 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, 994 struct cfg80211_mbssid_elems *src) 995 { 996 int i, offset = 0; 997 998 for (i = 0; i < src->cnt; i++) { 999 memcpy(pos + offset, src->elem[i].data, src->elem[i].len); 1000 dst->elem[i].len = src->elem[i].len; 1001 dst->elem[i].data = pos + offset; 1002 offset += dst->elem[i].len; 1003 } 1004 dst->cnt = src->cnt; 1005 1006 return offset; 1007 } 1008 1009 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 1010 struct cfg80211_beacon_data *params, 1011 const struct ieee80211_csa_settings *csa, 1012 const struct ieee80211_color_change_settings *cca) 1013 { 1014 struct cfg80211_mbssid_elems *mbssid = NULL; 1015 struct beacon_data *new, *old; 1016 int new_head_len, new_tail_len; 1017 int size, err; 1018 u32 changed = BSS_CHANGED_BEACON; 1019 1020 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1021 1022 1023 /* Need to have a beacon head if we don't have one yet */ 1024 if (!params->head && !old) 1025 return -EINVAL; 1026 1027 /* new or old head? */ 1028 if (params->head) 1029 new_head_len = params->head_len; 1030 else 1031 new_head_len = old->head_len; 1032 1033 /* new or old tail? */ 1034 if (params->tail || !old) 1035 /* params->tail_len will be zero for !params->tail */ 1036 new_tail_len = params->tail_len; 1037 else 1038 new_tail_len = old->tail_len; 1039 1040 size = sizeof(*new) + new_head_len + new_tail_len; 1041 1042 /* new or old multiple BSSID elements? */ 1043 if (params->mbssid_ies) { 1044 mbssid = params->mbssid_ies; 1045 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1046 size += ieee80211_get_mbssid_beacon_len(mbssid); 1047 } else if (old && old->mbssid_ies) { 1048 mbssid = old->mbssid_ies; 1049 size += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1050 size += ieee80211_get_mbssid_beacon_len(mbssid); 1051 } 1052 1053 new = kzalloc(size, GFP_KERNEL); 1054 if (!new) 1055 return -ENOMEM; 1056 1057 /* start filling the new info now */ 1058 1059 /* 1060 * pointers go into the block we allocated, 1061 * memory is | beacon_data | head | tail | mbssid_ies 1062 */ 1063 new->head = ((u8 *) new) + sizeof(*new); 1064 new->tail = new->head + new_head_len; 1065 new->head_len = new_head_len; 1066 new->tail_len = new_tail_len; 1067 /* copy in optional mbssid_ies */ 1068 if (mbssid) { 1069 u8 *pos = new->tail + new->tail_len; 1070 1071 new->mbssid_ies = (void *)pos; 1072 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); 1073 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid); 1074 /* update bssid_indicator */ 1075 sdata->vif.bss_conf.bssid_indicator = 1076 ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); 1077 } 1078 1079 if (csa) { 1080 new->cntdwn_current_counter = csa->count; 1081 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1082 csa->n_counter_offsets_beacon * 1083 sizeof(new->cntdwn_counter_offsets[0])); 1084 } else if (cca) { 1085 new->cntdwn_current_counter = cca->count; 1086 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1087 } 1088 1089 /* copy in head */ 1090 if (params->head) 1091 memcpy(new->head, params->head, new_head_len); 1092 else 1093 memcpy(new->head, old->head, new_head_len); 1094 1095 /* copy in optional tail */ 1096 if (params->tail) 1097 memcpy(new->tail, params->tail, new_tail_len); 1098 else 1099 if (old) 1100 memcpy(new->tail, old->tail, new_tail_len); 1101 1102 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1103 params->probe_resp_len, csa, cca); 1104 if (err < 0) { 1105 kfree(new); 1106 return err; 1107 } 1108 if (err == 0) 1109 changed |= BSS_CHANGED_AP_PROBE_RESP; 1110 1111 if (params->ftm_responder != -1) { 1112 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 1113 err = ieee80211_set_ftm_responder_params(sdata, 1114 params->lci, 1115 params->lci_len, 1116 params->civicloc, 1117 params->civicloc_len); 1118 1119 if (err < 0) { 1120 kfree(new); 1121 return err; 1122 } 1123 1124 changed |= BSS_CHANGED_FTM_RESPONDER; 1125 } 1126 1127 rcu_assign_pointer(sdata->u.ap.beacon, new); 1128 1129 if (old) 1130 kfree_rcu(old, rcu_head); 1131 1132 return changed; 1133 } 1134 1135 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1136 struct cfg80211_ap_settings *params) 1137 { 1138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1139 struct ieee80211_local *local = sdata->local; 1140 struct beacon_data *old; 1141 struct ieee80211_sub_if_data *vlan; 1142 u32 changed = BSS_CHANGED_BEACON_INT | 1143 BSS_CHANGED_BEACON_ENABLED | 1144 BSS_CHANGED_BEACON | 1145 BSS_CHANGED_SSID | 1146 BSS_CHANGED_P2P_PS | 1147 BSS_CHANGED_TXPOWER | 1148 BSS_CHANGED_TWT; 1149 int i, err; 1150 int prev_beacon_int; 1151 1152 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1153 if (old) 1154 return -EALREADY; 1155 1156 if (params->smps_mode != NL80211_SMPS_OFF) 1157 return -ENOTSUPP; 1158 1159 sdata->smps_mode = IEEE80211_SMPS_OFF; 1160 1161 sdata->needed_rx_chains = sdata->local->rx_chains; 1162 1163 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1164 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1165 1166 if (params->he_cap && params->he_oper) { 1167 sdata->vif.bss_conf.he_support = true; 1168 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1169 le32_get_bits(params->he_oper->he_oper_params, 1170 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1171 sdata->vif.bss_conf.frame_time_rts_th = 1172 le32_get_bits(params->he_oper->he_oper_params, 1173 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1174 changed |= BSS_CHANGED_HE_OBSS_PD; 1175 1176 if (params->he_bss_color.enabled) 1177 changed |= BSS_CHANGED_HE_BSS_COLOR; 1178 } 1179 1180 if (sdata->vif.type == NL80211_IFTYPE_AP && 1181 params->mbssid_config.tx_wdev) { 1182 err = ieee80211_set_ap_mbssid_options(sdata, 1183 params->mbssid_config); 1184 if (err) 1185 return err; 1186 } 1187 1188 mutex_lock(&local->mtx); 1189 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1190 IEEE80211_CHANCTX_SHARED); 1191 if (!err) 1192 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1193 mutex_unlock(&local->mtx); 1194 if (err) { 1195 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1196 return err; 1197 } 1198 1199 /* 1200 * Apply control port protocol, this allows us to 1201 * not encrypt dynamic WEP control frames. 1202 */ 1203 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1204 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1205 sdata->control_port_over_nl80211 = 1206 params->crypto.control_port_over_nl80211; 1207 sdata->control_port_no_preauth = 1208 params->crypto.control_port_no_preauth; 1209 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1210 ¶ms->crypto, 1211 sdata->vif.type); 1212 1213 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1214 vlan->control_port_protocol = 1215 params->crypto.control_port_ethertype; 1216 vlan->control_port_no_encrypt = 1217 params->crypto.control_port_no_encrypt; 1218 vlan->control_port_over_nl80211 = 1219 params->crypto.control_port_over_nl80211; 1220 vlan->control_port_no_preauth = 1221 params->crypto.control_port_no_preauth; 1222 vlan->encrypt_headroom = 1223 ieee80211_cs_headroom(sdata->local, 1224 ¶ms->crypto, 1225 vlan->vif.type); 1226 } 1227 1228 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1229 sdata->vif.bss_conf.enable_beacon = true; 1230 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1231 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1232 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd; 1233 sdata->vif.bss_conf.he_bss_color = params->he_bss_color; 1234 sdata->vif.bss_conf.s1g = params->chandef.chan->band == 1235 NL80211_BAND_S1GHZ; 1236 1237 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1238 if (params->ssid_len) 1239 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1240 params->ssid_len); 1241 sdata->vif.bss_conf.hidden_ssid = 1242 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1243 1244 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1245 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1246 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1247 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1248 if (params->p2p_opp_ps) 1249 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1250 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1251 1252 sdata->beacon_rate_set = false; 1253 if (wiphy_ext_feature_isset(local->hw.wiphy, 1254 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1255 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1256 sdata->beacon_rateidx_mask[i] = 1257 params->beacon_rate.control[i].legacy; 1258 if (sdata->beacon_rateidx_mask[i]) 1259 sdata->beacon_rate_set = true; 1260 } 1261 } 1262 1263 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1264 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate; 1265 1266 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL); 1267 if (err < 0) 1268 goto error; 1269 changed |= err; 1270 1271 if (params->fils_discovery.max_interval) { 1272 err = ieee80211_set_fils_discovery(sdata, 1273 ¶ms->fils_discovery); 1274 if (err < 0) 1275 goto error; 1276 changed |= BSS_CHANGED_FILS_DISCOVERY; 1277 } 1278 1279 if (params->unsol_bcast_probe_resp.interval) { 1280 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1281 ¶ms->unsol_bcast_probe_resp); 1282 if (err < 0) 1283 goto error; 1284 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1285 } 1286 1287 err = drv_start_ap(sdata->local, sdata); 1288 if (err) { 1289 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1290 1291 if (old) 1292 kfree_rcu(old, rcu_head); 1293 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1294 goto error; 1295 } 1296 1297 ieee80211_recalc_dtim(local, sdata); 1298 ieee80211_bss_info_change_notify(sdata, changed); 1299 1300 netif_carrier_on(dev); 1301 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1302 netif_carrier_on(vlan->dev); 1303 1304 return 0; 1305 1306 error: 1307 mutex_lock(&local->mtx); 1308 ieee80211_vif_release_channel(sdata); 1309 mutex_unlock(&local->mtx); 1310 1311 return err; 1312 } 1313 1314 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1315 struct cfg80211_beacon_data *params) 1316 { 1317 struct ieee80211_sub_if_data *sdata; 1318 struct beacon_data *old; 1319 int err; 1320 1321 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1322 sdata_assert_lock(sdata); 1323 1324 /* don't allow changing the beacon while a countdown is in place - offset 1325 * of channel switch counter may change 1326 */ 1327 if (sdata->vif.csa_active || sdata->vif.color_change_active) 1328 return -EBUSY; 1329 1330 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1331 if (!old) 1332 return -ENOENT; 1333 1334 err = ieee80211_assign_beacon(sdata, params, NULL, NULL); 1335 if (err < 0) 1336 return err; 1337 ieee80211_bss_info_change_notify(sdata, err); 1338 return 0; 1339 } 1340 1341 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1342 { 1343 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1344 struct ieee80211_sub_if_data *vlan; 1345 struct ieee80211_local *local = sdata->local; 1346 struct beacon_data *old_beacon; 1347 struct probe_resp *old_probe_resp; 1348 struct fils_discovery_data *old_fils_discovery; 1349 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1350 struct cfg80211_chan_def chandef; 1351 1352 sdata_assert_lock(sdata); 1353 1354 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1355 if (!old_beacon) 1356 return -ENOENT; 1357 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1358 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, 1359 sdata); 1360 old_unsol_bcast_probe_resp = 1361 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, 1362 sdata); 1363 1364 /* abort any running channel switch */ 1365 mutex_lock(&local->mtx); 1366 sdata->vif.csa_active = false; 1367 if (sdata->csa_block_tx) { 1368 ieee80211_wake_vif_queues(local, sdata, 1369 IEEE80211_QUEUE_STOP_REASON_CSA); 1370 sdata->csa_block_tx = false; 1371 } 1372 1373 mutex_unlock(&local->mtx); 1374 1375 if (sdata->u.ap.next_beacon) { 1376 kfree(sdata->u.ap.next_beacon->mbssid_ies); 1377 kfree(sdata->u.ap.next_beacon); 1378 sdata->u.ap.next_beacon = NULL; 1379 } 1380 1381 /* turn off carrier for this interface and dependent VLANs */ 1382 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1383 netif_carrier_off(vlan->dev); 1384 netif_carrier_off(dev); 1385 1386 /* remove beacon and probe response */ 1387 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1388 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1389 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); 1390 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); 1391 kfree_rcu(old_beacon, rcu_head); 1392 if (old_probe_resp) 1393 kfree_rcu(old_probe_resp, rcu_head); 1394 if (old_fils_discovery) 1395 kfree_rcu(old_fils_discovery, rcu_head); 1396 if (old_unsol_bcast_probe_resp) 1397 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1398 1399 kfree(sdata->vif.bss_conf.ftmr_params); 1400 sdata->vif.bss_conf.ftmr_params = NULL; 1401 1402 __sta_info_flush(sdata, true); 1403 ieee80211_free_keys(sdata, true); 1404 1405 sdata->vif.bss_conf.enable_beacon = false; 1406 sdata->beacon_rate_set = false; 1407 sdata->vif.bss_conf.ssid_len = 0; 1408 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1409 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1410 1411 if (sdata->wdev.cac_started) { 1412 chandef = sdata->vif.bss_conf.chandef; 1413 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1414 cfg80211_cac_event(sdata->dev, &chandef, 1415 NL80211_RADAR_CAC_ABORTED, 1416 GFP_KERNEL); 1417 } 1418 1419 drv_stop_ap(sdata->local, sdata); 1420 1421 /* free all potentially still buffered bcast frames */ 1422 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1423 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1424 1425 mutex_lock(&local->mtx); 1426 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1427 ieee80211_vif_release_channel(sdata); 1428 mutex_unlock(&local->mtx); 1429 1430 return 0; 1431 } 1432 1433 static int sta_apply_auth_flags(struct ieee80211_local *local, 1434 struct sta_info *sta, 1435 u32 mask, u32 set) 1436 { 1437 int ret; 1438 1439 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1440 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1441 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1442 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1443 if (ret) 1444 return ret; 1445 } 1446 1447 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1448 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1449 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1450 /* 1451 * When peer becomes associated, init rate control as 1452 * well. Some drivers require rate control initialized 1453 * before drv_sta_state() is called. 1454 */ 1455 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1456 rate_control_rate_init(sta); 1457 1458 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1459 if (ret) 1460 return ret; 1461 } 1462 1463 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1464 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1465 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1466 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1467 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1468 else 1469 ret = 0; 1470 if (ret) 1471 return ret; 1472 } 1473 1474 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1475 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1476 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1477 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1478 if (ret) 1479 return ret; 1480 } 1481 1482 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1483 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1484 test_sta_flag(sta, WLAN_STA_AUTH)) { 1485 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1486 if (ret) 1487 return ret; 1488 } 1489 1490 return 0; 1491 } 1492 1493 static void sta_apply_mesh_params(struct ieee80211_local *local, 1494 struct sta_info *sta, 1495 struct station_parameters *params) 1496 { 1497 #ifdef CONFIG_MAC80211_MESH 1498 struct ieee80211_sub_if_data *sdata = sta->sdata; 1499 u32 changed = 0; 1500 1501 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1502 switch (params->plink_state) { 1503 case NL80211_PLINK_ESTAB: 1504 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1505 changed = mesh_plink_inc_estab_count(sdata); 1506 sta->mesh->plink_state = params->plink_state; 1507 sta->mesh->aid = params->peer_aid; 1508 1509 ieee80211_mps_sta_status_update(sta); 1510 changed |= ieee80211_mps_set_sta_local_pm(sta, 1511 sdata->u.mesh.mshcfg.power_mode); 1512 1513 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1514 /* init at low value */ 1515 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1516 1517 break; 1518 case NL80211_PLINK_LISTEN: 1519 case NL80211_PLINK_BLOCKED: 1520 case NL80211_PLINK_OPN_SNT: 1521 case NL80211_PLINK_OPN_RCVD: 1522 case NL80211_PLINK_CNF_RCVD: 1523 case NL80211_PLINK_HOLDING: 1524 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1525 changed = mesh_plink_dec_estab_count(sdata); 1526 sta->mesh->plink_state = params->plink_state; 1527 1528 ieee80211_mps_sta_status_update(sta); 1529 changed |= ieee80211_mps_set_sta_local_pm(sta, 1530 NL80211_MESH_POWER_UNKNOWN); 1531 break; 1532 default: 1533 /* nothing */ 1534 break; 1535 } 1536 } 1537 1538 switch (params->plink_action) { 1539 case NL80211_PLINK_ACTION_NO_ACTION: 1540 /* nothing */ 1541 break; 1542 case NL80211_PLINK_ACTION_OPEN: 1543 changed |= mesh_plink_open(sta); 1544 break; 1545 case NL80211_PLINK_ACTION_BLOCK: 1546 changed |= mesh_plink_block(sta); 1547 break; 1548 } 1549 1550 if (params->local_pm) 1551 changed |= ieee80211_mps_set_sta_local_pm(sta, 1552 params->local_pm); 1553 1554 ieee80211_mbss_info_change_notify(sdata, changed); 1555 #endif 1556 } 1557 1558 static void sta_apply_airtime_params(struct ieee80211_local *local, 1559 struct sta_info *sta, 1560 struct station_parameters *params) 1561 { 1562 u8 ac; 1563 1564 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1565 struct airtime_sched_info *air_sched = &local->airtime[ac]; 1566 struct airtime_info *air_info = &sta->airtime[ac]; 1567 struct txq_info *txqi; 1568 u8 tid; 1569 1570 spin_lock_bh(&air_sched->lock); 1571 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { 1572 if (air_info->weight == params->airtime_weight || 1573 !sta->sta.txq[tid] || 1574 ac != ieee80211_ac_from_tid(tid)) 1575 continue; 1576 1577 airtime_weight_set(air_info, params->airtime_weight); 1578 1579 txqi = to_txq_info(sta->sta.txq[tid]); 1580 if (RB_EMPTY_NODE(&txqi->schedule_order)) 1581 continue; 1582 1583 ieee80211_update_airtime_weight(local, air_sched, 1584 0, true); 1585 } 1586 spin_unlock_bh(&air_sched->lock); 1587 } 1588 } 1589 1590 static int sta_apply_parameters(struct ieee80211_local *local, 1591 struct sta_info *sta, 1592 struct station_parameters *params) 1593 { 1594 int ret = 0; 1595 struct ieee80211_supported_band *sband; 1596 struct ieee80211_sub_if_data *sdata = sta->sdata; 1597 u32 mask, set; 1598 1599 sband = ieee80211_get_sband(sdata); 1600 if (!sband) 1601 return -EINVAL; 1602 1603 mask = params->sta_flags_mask; 1604 set = params->sta_flags_set; 1605 1606 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1607 /* 1608 * In mesh mode, ASSOCIATED isn't part of the nl80211 1609 * API but must follow AUTHENTICATED for driver state. 1610 */ 1611 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1612 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1613 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1614 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1615 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1616 /* 1617 * TDLS -- everything follows authorized, but 1618 * only becoming authorized is possible, not 1619 * going back 1620 */ 1621 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1622 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1623 BIT(NL80211_STA_FLAG_ASSOCIATED); 1624 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1625 BIT(NL80211_STA_FLAG_ASSOCIATED); 1626 } 1627 } 1628 1629 if (mask & BIT(NL80211_STA_FLAG_WME) && 1630 local->hw.queues >= IEEE80211_NUM_ACS) 1631 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1632 1633 /* auth flags will be set later for TDLS, 1634 * and for unassociated stations that move to associated */ 1635 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1636 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1637 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1638 ret = sta_apply_auth_flags(local, sta, mask, set); 1639 if (ret) 1640 return ret; 1641 } 1642 1643 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1644 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1645 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1646 else 1647 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1648 } 1649 1650 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1651 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1652 if (set & BIT(NL80211_STA_FLAG_MFP)) 1653 set_sta_flag(sta, WLAN_STA_MFP); 1654 else 1655 clear_sta_flag(sta, WLAN_STA_MFP); 1656 } 1657 1658 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1659 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1660 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1661 else 1662 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1663 } 1664 1665 /* mark TDLS channel switch support, if the AP allows it */ 1666 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1667 !sdata->u.mgd.tdls_chan_switch_prohibited && 1668 params->ext_capab_len >= 4 && 1669 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1670 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1671 1672 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1673 !sdata->u.mgd.tdls_wider_bw_prohibited && 1674 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1675 params->ext_capab_len >= 8 && 1676 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1677 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1678 1679 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1680 sta->sta.uapsd_queues = params->uapsd_queues; 1681 sta->sta.max_sp = params->max_sp; 1682 } 1683 1684 /* The sender might not have sent the last bit, consider it to be 0 */ 1685 if (params->ext_capab_len >= 8) { 1686 u8 val = (params->ext_capab[7] & 1687 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1688 1689 /* we did get all the bits, take the MSB as well */ 1690 if (params->ext_capab_len >= 9) { 1691 u8 val_msb = params->ext_capab[8] & 1692 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1693 val_msb <<= 1; 1694 val |= val_msb; 1695 } 1696 1697 switch (val) { 1698 case 1: 1699 sta->sta.max_amsdu_subframes = 32; 1700 break; 1701 case 2: 1702 sta->sta.max_amsdu_subframes = 16; 1703 break; 1704 case 3: 1705 sta->sta.max_amsdu_subframes = 8; 1706 break; 1707 default: 1708 sta->sta.max_amsdu_subframes = 0; 1709 } 1710 } 1711 1712 /* 1713 * cfg80211 validates this (1-2007) and allows setting the AID 1714 * only when creating a new station entry 1715 */ 1716 if (params->aid) 1717 sta->sta.aid = params->aid; 1718 1719 /* 1720 * Some of the following updates would be racy if called on an 1721 * existing station, via ieee80211_change_station(). However, 1722 * all such changes are rejected by cfg80211 except for updates 1723 * changing the supported rates on an existing but not yet used 1724 * TDLS peer. 1725 */ 1726 1727 if (params->listen_interval >= 0) 1728 sta->listen_interval = params->listen_interval; 1729 1730 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1731 sta->sta.txpwr.type = params->txpwr.type; 1732 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1733 sta->sta.txpwr.power = params->txpwr.power; 1734 ret = drv_sta_set_txpwr(local, sdata, sta); 1735 if (ret) 1736 return ret; 1737 } 1738 1739 if (params->supported_rates && params->supported_rates_len) { 1740 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1741 sband, params->supported_rates, 1742 params->supported_rates_len, 1743 &sta->sta.supp_rates[sband->band]); 1744 } 1745 1746 if (params->ht_capa) 1747 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1748 params->ht_capa, sta); 1749 1750 /* VHT can override some HT caps such as the A-MSDU max length */ 1751 if (params->vht_capa) 1752 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1753 params->vht_capa, sta); 1754 1755 if (params->he_capa) 1756 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1757 (void *)params->he_capa, 1758 params->he_capa_len, 1759 (void *)params->he_6ghz_capa, 1760 sta); 1761 1762 if (params->eht_capa) 1763 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, 1764 (u8 *)params->he_capa, 1765 params->he_capa_len, 1766 params->eht_capa, 1767 params->eht_capa_len, 1768 sta); 1769 1770 if (params->opmode_notif_used) { 1771 /* returned value is only needed for rc update, but the 1772 * rc isn't initialized here yet, so ignore it 1773 */ 1774 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1775 sband->band); 1776 } 1777 1778 if (params->support_p2p_ps >= 0) 1779 sta->sta.support_p2p_ps = params->support_p2p_ps; 1780 1781 if (ieee80211_vif_is_mesh(&sdata->vif)) 1782 sta_apply_mesh_params(local, sta, params); 1783 1784 if (params->airtime_weight) 1785 sta_apply_airtime_params(local, sta, params); 1786 1787 1788 /* set the STA state after all sta info from usermode has been set */ 1789 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1790 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1791 ret = sta_apply_auth_flags(local, sta, mask, set); 1792 if (ret) 1793 return ret; 1794 } 1795 1796 return 0; 1797 } 1798 1799 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1800 const u8 *mac, 1801 struct station_parameters *params) 1802 { 1803 struct ieee80211_local *local = wiphy_priv(wiphy); 1804 struct sta_info *sta; 1805 struct ieee80211_sub_if_data *sdata; 1806 int err; 1807 1808 if (params->vlan) { 1809 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1810 1811 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1812 sdata->vif.type != NL80211_IFTYPE_AP) 1813 return -EINVAL; 1814 } else 1815 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1816 1817 if (ether_addr_equal(mac, sdata->vif.addr)) 1818 return -EINVAL; 1819 1820 if (!is_valid_ether_addr(mac)) 1821 return -EINVAL; 1822 1823 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1824 sdata->vif.type == NL80211_IFTYPE_STATION && 1825 !sdata->u.mgd.associated) 1826 return -EINVAL; 1827 1828 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1829 if (!sta) 1830 return -ENOMEM; 1831 1832 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1833 sta->sta.tdls = true; 1834 1835 err = sta_apply_parameters(local, sta, params); 1836 if (err) { 1837 sta_info_free(local, sta); 1838 return err; 1839 } 1840 1841 /* 1842 * for TDLS and for unassociated station, rate control should be 1843 * initialized only when rates are known and station is marked 1844 * authorized/associated 1845 */ 1846 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1847 test_sta_flag(sta, WLAN_STA_ASSOC)) 1848 rate_control_rate_init(sta); 1849 1850 return sta_info_insert(sta); 1851 } 1852 1853 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1854 struct station_del_parameters *params) 1855 { 1856 struct ieee80211_sub_if_data *sdata; 1857 1858 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1859 1860 if (params->mac) 1861 return sta_info_destroy_addr_bss(sdata, params->mac); 1862 1863 sta_info_flush(sdata); 1864 return 0; 1865 } 1866 1867 static int ieee80211_change_station(struct wiphy *wiphy, 1868 struct net_device *dev, const u8 *mac, 1869 struct station_parameters *params) 1870 { 1871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1872 struct ieee80211_local *local = wiphy_priv(wiphy); 1873 struct sta_info *sta; 1874 struct ieee80211_sub_if_data *vlansdata; 1875 enum cfg80211_station_type statype; 1876 int err; 1877 1878 mutex_lock(&local->sta_mtx); 1879 1880 sta = sta_info_get_bss(sdata, mac); 1881 if (!sta) { 1882 err = -ENOENT; 1883 goto out_err; 1884 } 1885 1886 switch (sdata->vif.type) { 1887 case NL80211_IFTYPE_MESH_POINT: 1888 if (sdata->u.mesh.user_mpm) 1889 statype = CFG80211_STA_MESH_PEER_USER; 1890 else 1891 statype = CFG80211_STA_MESH_PEER_KERNEL; 1892 break; 1893 case NL80211_IFTYPE_ADHOC: 1894 statype = CFG80211_STA_IBSS; 1895 break; 1896 case NL80211_IFTYPE_STATION: 1897 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1898 statype = CFG80211_STA_AP_STA; 1899 break; 1900 } 1901 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1902 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1903 else 1904 statype = CFG80211_STA_TDLS_PEER_SETUP; 1905 break; 1906 case NL80211_IFTYPE_AP: 1907 case NL80211_IFTYPE_AP_VLAN: 1908 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1909 statype = CFG80211_STA_AP_CLIENT; 1910 else 1911 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1912 break; 1913 default: 1914 err = -EOPNOTSUPP; 1915 goto out_err; 1916 } 1917 1918 err = cfg80211_check_station_change(wiphy, params, statype); 1919 if (err) 1920 goto out_err; 1921 1922 if (params->vlan && params->vlan != sta->sdata->dev) { 1923 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1924 1925 if (params->vlan->ieee80211_ptr->use_4addr) { 1926 if (vlansdata->u.vlan.sta) { 1927 err = -EBUSY; 1928 goto out_err; 1929 } 1930 1931 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1932 __ieee80211_check_fast_rx_iface(vlansdata); 1933 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1934 } 1935 1936 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1937 sta->sdata->u.vlan.sta) { 1938 ieee80211_clear_fast_rx(sta); 1939 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1940 } 1941 1942 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1943 ieee80211_vif_dec_num_mcast(sta->sdata); 1944 1945 sta->sdata = vlansdata; 1946 ieee80211_check_fast_xmit(sta); 1947 1948 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1949 ieee80211_vif_inc_num_mcast(sta->sdata); 1950 cfg80211_send_layer2_update(sta->sdata->dev, 1951 sta->sta.addr); 1952 } 1953 } 1954 1955 err = sta_apply_parameters(local, sta, params); 1956 if (err) 1957 goto out_err; 1958 1959 mutex_unlock(&local->sta_mtx); 1960 1961 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1962 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1963 ieee80211_recalc_ps(local); 1964 ieee80211_recalc_ps_vif(sdata); 1965 } 1966 1967 return 0; 1968 out_err: 1969 mutex_unlock(&local->sta_mtx); 1970 return err; 1971 } 1972 1973 #ifdef CONFIG_MAC80211_MESH 1974 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1975 const u8 *dst, const u8 *next_hop) 1976 { 1977 struct ieee80211_sub_if_data *sdata; 1978 struct mesh_path *mpath; 1979 struct sta_info *sta; 1980 1981 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1982 1983 rcu_read_lock(); 1984 sta = sta_info_get(sdata, next_hop); 1985 if (!sta) { 1986 rcu_read_unlock(); 1987 return -ENOENT; 1988 } 1989 1990 mpath = mesh_path_add(sdata, dst); 1991 if (IS_ERR(mpath)) { 1992 rcu_read_unlock(); 1993 return PTR_ERR(mpath); 1994 } 1995 1996 mesh_path_fix_nexthop(mpath, sta); 1997 1998 rcu_read_unlock(); 1999 return 0; 2000 } 2001 2002 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 2003 const u8 *dst) 2004 { 2005 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2006 2007 if (dst) 2008 return mesh_path_del(sdata, dst); 2009 2010 mesh_path_flush_by_iface(sdata); 2011 return 0; 2012 } 2013 2014 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 2015 const u8 *dst, const u8 *next_hop) 2016 { 2017 struct ieee80211_sub_if_data *sdata; 2018 struct mesh_path *mpath; 2019 struct sta_info *sta; 2020 2021 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2022 2023 rcu_read_lock(); 2024 2025 sta = sta_info_get(sdata, next_hop); 2026 if (!sta) { 2027 rcu_read_unlock(); 2028 return -ENOENT; 2029 } 2030 2031 mpath = mesh_path_lookup(sdata, dst); 2032 if (!mpath) { 2033 rcu_read_unlock(); 2034 return -ENOENT; 2035 } 2036 2037 mesh_path_fix_nexthop(mpath, sta); 2038 2039 rcu_read_unlock(); 2040 return 0; 2041 } 2042 2043 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 2044 struct mpath_info *pinfo) 2045 { 2046 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 2047 2048 if (next_hop_sta) 2049 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 2050 else 2051 eth_zero_addr(next_hop); 2052 2053 memset(pinfo, 0, sizeof(*pinfo)); 2054 2055 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 2056 2057 pinfo->filled = MPATH_INFO_FRAME_QLEN | 2058 MPATH_INFO_SN | 2059 MPATH_INFO_METRIC | 2060 MPATH_INFO_EXPTIME | 2061 MPATH_INFO_DISCOVERY_TIMEOUT | 2062 MPATH_INFO_DISCOVERY_RETRIES | 2063 MPATH_INFO_FLAGS | 2064 MPATH_INFO_HOP_COUNT | 2065 MPATH_INFO_PATH_CHANGE; 2066 2067 pinfo->frame_qlen = mpath->frame_queue.qlen; 2068 pinfo->sn = mpath->sn; 2069 pinfo->metric = mpath->metric; 2070 if (time_before(jiffies, mpath->exp_time)) 2071 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 2072 pinfo->discovery_timeout = 2073 jiffies_to_msecs(mpath->discovery_timeout); 2074 pinfo->discovery_retries = mpath->discovery_retries; 2075 if (mpath->flags & MESH_PATH_ACTIVE) 2076 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 2077 if (mpath->flags & MESH_PATH_RESOLVING) 2078 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 2079 if (mpath->flags & MESH_PATH_SN_VALID) 2080 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 2081 if (mpath->flags & MESH_PATH_FIXED) 2082 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 2083 if (mpath->flags & MESH_PATH_RESOLVED) 2084 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 2085 pinfo->hop_count = mpath->hop_count; 2086 pinfo->path_change_count = mpath->path_change_count; 2087 } 2088 2089 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 2090 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 2091 2092 { 2093 struct ieee80211_sub_if_data *sdata; 2094 struct mesh_path *mpath; 2095 2096 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2097 2098 rcu_read_lock(); 2099 mpath = mesh_path_lookup(sdata, dst); 2100 if (!mpath) { 2101 rcu_read_unlock(); 2102 return -ENOENT; 2103 } 2104 memcpy(dst, mpath->dst, ETH_ALEN); 2105 mpath_set_pinfo(mpath, next_hop, pinfo); 2106 rcu_read_unlock(); 2107 return 0; 2108 } 2109 2110 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2111 int idx, u8 *dst, u8 *next_hop, 2112 struct mpath_info *pinfo) 2113 { 2114 struct ieee80211_sub_if_data *sdata; 2115 struct mesh_path *mpath; 2116 2117 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2118 2119 rcu_read_lock(); 2120 mpath = mesh_path_lookup_by_idx(sdata, idx); 2121 if (!mpath) { 2122 rcu_read_unlock(); 2123 return -ENOENT; 2124 } 2125 memcpy(dst, mpath->dst, ETH_ALEN); 2126 mpath_set_pinfo(mpath, next_hop, pinfo); 2127 rcu_read_unlock(); 2128 return 0; 2129 } 2130 2131 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2132 struct mpath_info *pinfo) 2133 { 2134 memset(pinfo, 0, sizeof(*pinfo)); 2135 memcpy(mpp, mpath->mpp, ETH_ALEN); 2136 2137 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2138 } 2139 2140 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2141 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2142 2143 { 2144 struct ieee80211_sub_if_data *sdata; 2145 struct mesh_path *mpath; 2146 2147 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2148 2149 rcu_read_lock(); 2150 mpath = mpp_path_lookup(sdata, dst); 2151 if (!mpath) { 2152 rcu_read_unlock(); 2153 return -ENOENT; 2154 } 2155 memcpy(dst, mpath->dst, ETH_ALEN); 2156 mpp_set_pinfo(mpath, mpp, pinfo); 2157 rcu_read_unlock(); 2158 return 0; 2159 } 2160 2161 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2162 int idx, u8 *dst, u8 *mpp, 2163 struct mpath_info *pinfo) 2164 { 2165 struct ieee80211_sub_if_data *sdata; 2166 struct mesh_path *mpath; 2167 2168 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2169 2170 rcu_read_lock(); 2171 mpath = mpp_path_lookup_by_idx(sdata, idx); 2172 if (!mpath) { 2173 rcu_read_unlock(); 2174 return -ENOENT; 2175 } 2176 memcpy(dst, mpath->dst, ETH_ALEN); 2177 mpp_set_pinfo(mpath, mpp, pinfo); 2178 rcu_read_unlock(); 2179 return 0; 2180 } 2181 2182 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2183 struct net_device *dev, 2184 struct mesh_config *conf) 2185 { 2186 struct ieee80211_sub_if_data *sdata; 2187 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2188 2189 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2190 return 0; 2191 } 2192 2193 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2194 { 2195 return (mask >> (parm-1)) & 0x1; 2196 } 2197 2198 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2199 const struct mesh_setup *setup) 2200 { 2201 u8 *new_ie; 2202 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2203 struct ieee80211_sub_if_data, u.mesh); 2204 int i; 2205 2206 /* allocate information elements */ 2207 new_ie = NULL; 2208 2209 if (setup->ie_len) { 2210 new_ie = kmemdup(setup->ie, setup->ie_len, 2211 GFP_KERNEL); 2212 if (!new_ie) 2213 return -ENOMEM; 2214 } 2215 ifmsh->ie_len = setup->ie_len; 2216 ifmsh->ie = new_ie; 2217 2218 /* now copy the rest of the setup parameters */ 2219 ifmsh->mesh_id_len = setup->mesh_id_len; 2220 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2221 ifmsh->mesh_sp_id = setup->sync_method; 2222 ifmsh->mesh_pp_id = setup->path_sel_proto; 2223 ifmsh->mesh_pm_id = setup->path_metric; 2224 ifmsh->user_mpm = setup->user_mpm; 2225 ifmsh->mesh_auth_id = setup->auth_id; 2226 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2227 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2228 if (setup->is_authenticated) 2229 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2230 if (setup->is_secure) 2231 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2232 2233 /* mcast rate setting in Mesh Node */ 2234 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2235 sizeof(setup->mcast_rate)); 2236 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2237 2238 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2239 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2240 2241 sdata->beacon_rate_set = false; 2242 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2243 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2244 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2245 sdata->beacon_rateidx_mask[i] = 2246 setup->beacon_rate.control[i].legacy; 2247 if (sdata->beacon_rateidx_mask[i]) 2248 sdata->beacon_rate_set = true; 2249 } 2250 } 2251 2252 return 0; 2253 } 2254 2255 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2256 struct net_device *dev, u32 mask, 2257 const struct mesh_config *nconf) 2258 { 2259 struct mesh_config *conf; 2260 struct ieee80211_sub_if_data *sdata; 2261 struct ieee80211_if_mesh *ifmsh; 2262 2263 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2264 ifmsh = &sdata->u.mesh; 2265 2266 /* Set the config options which we are interested in setting */ 2267 conf = &(sdata->u.mesh.mshcfg); 2268 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2269 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2270 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2271 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2272 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2273 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2274 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2275 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2276 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2277 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2278 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2279 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2280 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2281 conf->element_ttl = nconf->element_ttl; 2282 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2283 if (ifmsh->user_mpm) 2284 return -EBUSY; 2285 conf->auto_open_plinks = nconf->auto_open_plinks; 2286 } 2287 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2288 conf->dot11MeshNbrOffsetMaxNeighbor = 2289 nconf->dot11MeshNbrOffsetMaxNeighbor; 2290 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2291 conf->dot11MeshHWMPmaxPREQretries = 2292 nconf->dot11MeshHWMPmaxPREQretries; 2293 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2294 conf->path_refresh_time = nconf->path_refresh_time; 2295 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2296 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2297 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2298 conf->dot11MeshHWMPactivePathTimeout = 2299 nconf->dot11MeshHWMPactivePathTimeout; 2300 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2301 conf->dot11MeshHWMPpreqMinInterval = 2302 nconf->dot11MeshHWMPpreqMinInterval; 2303 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2304 conf->dot11MeshHWMPperrMinInterval = 2305 nconf->dot11MeshHWMPperrMinInterval; 2306 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2307 mask)) 2308 conf->dot11MeshHWMPnetDiameterTraversalTime = 2309 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2310 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2311 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2312 ieee80211_mesh_root_setup(ifmsh); 2313 } 2314 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2315 /* our current gate announcement implementation rides on root 2316 * announcements, so require this ifmsh to also be a root node 2317 * */ 2318 if (nconf->dot11MeshGateAnnouncementProtocol && 2319 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2320 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2321 ieee80211_mesh_root_setup(ifmsh); 2322 } 2323 conf->dot11MeshGateAnnouncementProtocol = 2324 nconf->dot11MeshGateAnnouncementProtocol; 2325 } 2326 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2327 conf->dot11MeshHWMPRannInterval = 2328 nconf->dot11MeshHWMPRannInterval; 2329 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2330 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2331 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2332 /* our RSSI threshold implementation is supported only for 2333 * devices that report signal in dBm. 2334 */ 2335 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2336 return -ENOTSUPP; 2337 conf->rssi_threshold = nconf->rssi_threshold; 2338 } 2339 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2340 conf->ht_opmode = nconf->ht_opmode; 2341 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2342 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2343 } 2344 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2345 conf->dot11MeshHWMPactivePathToRootTimeout = 2346 nconf->dot11MeshHWMPactivePathToRootTimeout; 2347 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2348 conf->dot11MeshHWMProotInterval = 2349 nconf->dot11MeshHWMProotInterval; 2350 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2351 conf->dot11MeshHWMPconfirmationInterval = 2352 nconf->dot11MeshHWMPconfirmationInterval; 2353 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2354 conf->power_mode = nconf->power_mode; 2355 ieee80211_mps_local_status_update(sdata); 2356 } 2357 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2358 conf->dot11MeshAwakeWindowDuration = 2359 nconf->dot11MeshAwakeWindowDuration; 2360 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2361 conf->plink_timeout = nconf->plink_timeout; 2362 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2363 conf->dot11MeshConnectedToMeshGate = 2364 nconf->dot11MeshConnectedToMeshGate; 2365 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2366 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2367 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2368 conf->dot11MeshConnectedToAuthServer = 2369 nconf->dot11MeshConnectedToAuthServer; 2370 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2371 return 0; 2372 } 2373 2374 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2375 const struct mesh_config *conf, 2376 const struct mesh_setup *setup) 2377 { 2378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2379 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2380 int err; 2381 2382 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2383 err = copy_mesh_setup(ifmsh, setup); 2384 if (err) 2385 return err; 2386 2387 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2388 2389 /* can mesh use other SMPS modes? */ 2390 sdata->smps_mode = IEEE80211_SMPS_OFF; 2391 sdata->needed_rx_chains = sdata->local->rx_chains; 2392 2393 mutex_lock(&sdata->local->mtx); 2394 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2395 IEEE80211_CHANCTX_SHARED); 2396 mutex_unlock(&sdata->local->mtx); 2397 if (err) 2398 return err; 2399 2400 return ieee80211_start_mesh(sdata); 2401 } 2402 2403 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2404 { 2405 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2406 2407 ieee80211_stop_mesh(sdata); 2408 mutex_lock(&sdata->local->mtx); 2409 ieee80211_vif_release_channel(sdata); 2410 kfree(sdata->u.mesh.ie); 2411 mutex_unlock(&sdata->local->mtx); 2412 2413 return 0; 2414 } 2415 #endif 2416 2417 static int ieee80211_change_bss(struct wiphy *wiphy, 2418 struct net_device *dev, 2419 struct bss_parameters *params) 2420 { 2421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2422 struct ieee80211_supported_band *sband; 2423 u32 changed = 0; 2424 2425 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2426 return -ENOENT; 2427 2428 sband = ieee80211_get_sband(sdata); 2429 if (!sband) 2430 return -EINVAL; 2431 2432 if (params->use_cts_prot >= 0) { 2433 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2434 changed |= BSS_CHANGED_ERP_CTS_PROT; 2435 } 2436 if (params->use_short_preamble >= 0) { 2437 sdata->vif.bss_conf.use_short_preamble = 2438 params->use_short_preamble; 2439 changed |= BSS_CHANGED_ERP_PREAMBLE; 2440 } 2441 2442 if (!sdata->vif.bss_conf.use_short_slot && 2443 (sband->band == NL80211_BAND_5GHZ || 2444 sband->band == NL80211_BAND_6GHZ)) { 2445 sdata->vif.bss_conf.use_short_slot = true; 2446 changed |= BSS_CHANGED_ERP_SLOT; 2447 } 2448 2449 if (params->use_short_slot_time >= 0) { 2450 sdata->vif.bss_conf.use_short_slot = 2451 params->use_short_slot_time; 2452 changed |= BSS_CHANGED_ERP_SLOT; 2453 } 2454 2455 if (params->basic_rates) { 2456 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2457 wiphy->bands[sband->band], 2458 params->basic_rates, 2459 params->basic_rates_len, 2460 &sdata->vif.bss_conf.basic_rates); 2461 changed |= BSS_CHANGED_BASIC_RATES; 2462 ieee80211_check_rate_mask(sdata); 2463 } 2464 2465 if (params->ap_isolate >= 0) { 2466 if (params->ap_isolate) 2467 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2468 else 2469 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2470 ieee80211_check_fast_rx_iface(sdata); 2471 } 2472 2473 if (params->ht_opmode >= 0) { 2474 sdata->vif.bss_conf.ht_operation_mode = 2475 (u16) params->ht_opmode; 2476 changed |= BSS_CHANGED_HT; 2477 } 2478 2479 if (params->p2p_ctwindow >= 0) { 2480 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2481 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2482 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2483 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2484 changed |= BSS_CHANGED_P2P_PS; 2485 } 2486 2487 if (params->p2p_opp_ps > 0) { 2488 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2489 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2490 changed |= BSS_CHANGED_P2P_PS; 2491 } else if (params->p2p_opp_ps == 0) { 2492 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2493 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2494 changed |= BSS_CHANGED_P2P_PS; 2495 } 2496 2497 ieee80211_bss_info_change_notify(sdata, changed); 2498 2499 return 0; 2500 } 2501 2502 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2503 struct net_device *dev, 2504 struct ieee80211_txq_params *params) 2505 { 2506 struct ieee80211_local *local = wiphy_priv(wiphy); 2507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2508 struct ieee80211_tx_queue_params p; 2509 2510 if (!local->ops->conf_tx) 2511 return -EOPNOTSUPP; 2512 2513 if (local->hw.queues < IEEE80211_NUM_ACS) 2514 return -EOPNOTSUPP; 2515 2516 memset(&p, 0, sizeof(p)); 2517 p.aifs = params->aifs; 2518 p.cw_max = params->cwmax; 2519 p.cw_min = params->cwmin; 2520 p.txop = params->txop; 2521 2522 /* 2523 * Setting tx queue params disables u-apsd because it's only 2524 * called in master mode. 2525 */ 2526 p.uapsd = false; 2527 2528 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2529 2530 sdata->tx_conf[params->ac] = p; 2531 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2532 wiphy_debug(local->hw.wiphy, 2533 "failed to set TX queue parameters for AC %d\n", 2534 params->ac); 2535 return -EINVAL; 2536 } 2537 2538 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2539 2540 return 0; 2541 } 2542 2543 #ifdef CONFIG_PM 2544 static int ieee80211_suspend(struct wiphy *wiphy, 2545 struct cfg80211_wowlan *wowlan) 2546 { 2547 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2548 } 2549 2550 static int ieee80211_resume(struct wiphy *wiphy) 2551 { 2552 return __ieee80211_resume(wiphy_priv(wiphy)); 2553 } 2554 #else 2555 #define ieee80211_suspend NULL 2556 #define ieee80211_resume NULL 2557 #endif 2558 2559 static int ieee80211_scan(struct wiphy *wiphy, 2560 struct cfg80211_scan_request *req) 2561 { 2562 struct ieee80211_sub_if_data *sdata; 2563 2564 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2565 2566 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2567 case NL80211_IFTYPE_STATION: 2568 case NL80211_IFTYPE_ADHOC: 2569 case NL80211_IFTYPE_MESH_POINT: 2570 case NL80211_IFTYPE_P2P_CLIENT: 2571 case NL80211_IFTYPE_P2P_DEVICE: 2572 break; 2573 case NL80211_IFTYPE_P2P_GO: 2574 if (sdata->local->ops->hw_scan) 2575 break; 2576 /* 2577 * FIXME: implement NoA while scanning in software, 2578 * for now fall through to allow scanning only when 2579 * beaconing hasn't been configured yet 2580 */ 2581 fallthrough; 2582 case NL80211_IFTYPE_AP: 2583 /* 2584 * If the scan has been forced (and the driver supports 2585 * forcing), don't care about being beaconing already. 2586 * This will create problems to the attached stations (e.g. all 2587 * the frames sent while scanning on other channel will be 2588 * lost) 2589 */ 2590 if (sdata->u.ap.beacon && 2591 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2592 !(req->flags & NL80211_SCAN_FLAG_AP))) 2593 return -EOPNOTSUPP; 2594 break; 2595 case NL80211_IFTYPE_NAN: 2596 default: 2597 return -EOPNOTSUPP; 2598 } 2599 2600 return ieee80211_request_scan(sdata, req); 2601 } 2602 2603 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2604 { 2605 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2606 } 2607 2608 static int 2609 ieee80211_sched_scan_start(struct wiphy *wiphy, 2610 struct net_device *dev, 2611 struct cfg80211_sched_scan_request *req) 2612 { 2613 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2614 2615 if (!sdata->local->ops->sched_scan_start) 2616 return -EOPNOTSUPP; 2617 2618 return ieee80211_request_sched_scan_start(sdata, req); 2619 } 2620 2621 static int 2622 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2623 u64 reqid) 2624 { 2625 struct ieee80211_local *local = wiphy_priv(wiphy); 2626 2627 if (!local->ops->sched_scan_stop) 2628 return -EOPNOTSUPP; 2629 2630 return ieee80211_request_sched_scan_stop(local); 2631 } 2632 2633 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2634 struct cfg80211_auth_request *req) 2635 { 2636 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2637 } 2638 2639 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2640 struct cfg80211_assoc_request *req) 2641 { 2642 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2643 } 2644 2645 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2646 struct cfg80211_deauth_request *req) 2647 { 2648 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2649 } 2650 2651 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2652 struct cfg80211_disassoc_request *req) 2653 { 2654 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2655 } 2656 2657 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2658 struct cfg80211_ibss_params *params) 2659 { 2660 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2661 } 2662 2663 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2664 { 2665 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2666 } 2667 2668 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2669 struct ocb_setup *setup) 2670 { 2671 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2672 } 2673 2674 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2675 { 2676 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2677 } 2678 2679 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2680 int rate[NUM_NL80211_BANDS]) 2681 { 2682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2683 2684 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2685 sizeof(int) * NUM_NL80211_BANDS); 2686 2687 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2688 2689 return 0; 2690 } 2691 2692 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2693 { 2694 struct ieee80211_local *local = wiphy_priv(wiphy); 2695 int err; 2696 2697 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2698 ieee80211_check_fast_xmit_all(local); 2699 2700 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2701 2702 if (err) { 2703 ieee80211_check_fast_xmit_all(local); 2704 return err; 2705 } 2706 } 2707 2708 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2709 (changed & WIPHY_PARAM_DYN_ACK)) { 2710 s16 coverage_class; 2711 2712 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2713 wiphy->coverage_class : -1; 2714 err = drv_set_coverage_class(local, coverage_class); 2715 2716 if (err) 2717 return err; 2718 } 2719 2720 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2721 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2722 2723 if (err) 2724 return err; 2725 } 2726 2727 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2728 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2729 return -EINVAL; 2730 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2731 } 2732 if (changed & WIPHY_PARAM_RETRY_LONG) { 2733 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2734 return -EINVAL; 2735 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2736 } 2737 if (changed & 2738 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2739 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2740 2741 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2742 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2743 WIPHY_PARAM_TXQ_QUANTUM)) 2744 ieee80211_txq_set_params(local); 2745 2746 return 0; 2747 } 2748 2749 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2750 struct wireless_dev *wdev, 2751 enum nl80211_tx_power_setting type, int mbm) 2752 { 2753 struct ieee80211_local *local = wiphy_priv(wiphy); 2754 struct ieee80211_sub_if_data *sdata; 2755 enum nl80211_tx_power_setting txp_type = type; 2756 bool update_txp_type = false; 2757 bool has_monitor = false; 2758 2759 if (wdev) { 2760 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2761 2762 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2763 sdata = wiphy_dereference(local->hw.wiphy, 2764 local->monitor_sdata); 2765 if (!sdata) 2766 return -EOPNOTSUPP; 2767 } 2768 2769 switch (type) { 2770 case NL80211_TX_POWER_AUTOMATIC: 2771 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2772 txp_type = NL80211_TX_POWER_LIMITED; 2773 break; 2774 case NL80211_TX_POWER_LIMITED: 2775 case NL80211_TX_POWER_FIXED: 2776 if (mbm < 0 || (mbm % 100)) 2777 return -EOPNOTSUPP; 2778 sdata->user_power_level = MBM_TO_DBM(mbm); 2779 break; 2780 } 2781 2782 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2783 update_txp_type = true; 2784 sdata->vif.bss_conf.txpower_type = txp_type; 2785 } 2786 2787 ieee80211_recalc_txpower(sdata, update_txp_type); 2788 2789 return 0; 2790 } 2791 2792 switch (type) { 2793 case NL80211_TX_POWER_AUTOMATIC: 2794 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2795 txp_type = NL80211_TX_POWER_LIMITED; 2796 break; 2797 case NL80211_TX_POWER_LIMITED: 2798 case NL80211_TX_POWER_FIXED: 2799 if (mbm < 0 || (mbm % 100)) 2800 return -EOPNOTSUPP; 2801 local->user_power_level = MBM_TO_DBM(mbm); 2802 break; 2803 } 2804 2805 mutex_lock(&local->iflist_mtx); 2806 list_for_each_entry(sdata, &local->interfaces, list) { 2807 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2808 has_monitor = true; 2809 continue; 2810 } 2811 sdata->user_power_level = local->user_power_level; 2812 if (txp_type != sdata->vif.bss_conf.txpower_type) 2813 update_txp_type = true; 2814 sdata->vif.bss_conf.txpower_type = txp_type; 2815 } 2816 list_for_each_entry(sdata, &local->interfaces, list) { 2817 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2818 continue; 2819 ieee80211_recalc_txpower(sdata, update_txp_type); 2820 } 2821 mutex_unlock(&local->iflist_mtx); 2822 2823 if (has_monitor) { 2824 sdata = wiphy_dereference(local->hw.wiphy, 2825 local->monitor_sdata); 2826 if (sdata) { 2827 sdata->user_power_level = local->user_power_level; 2828 if (txp_type != sdata->vif.bss_conf.txpower_type) 2829 update_txp_type = true; 2830 sdata->vif.bss_conf.txpower_type = txp_type; 2831 2832 ieee80211_recalc_txpower(sdata, update_txp_type); 2833 } 2834 } 2835 2836 return 0; 2837 } 2838 2839 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2840 struct wireless_dev *wdev, 2841 int *dbm) 2842 { 2843 struct ieee80211_local *local = wiphy_priv(wiphy); 2844 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2845 2846 if (local->ops->get_txpower) 2847 return drv_get_txpower(local, sdata, dbm); 2848 2849 if (!local->use_chanctx) 2850 *dbm = local->hw.conf.power_level; 2851 else 2852 *dbm = sdata->vif.bss_conf.txpower; 2853 2854 return 0; 2855 } 2856 2857 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2858 { 2859 struct ieee80211_local *local = wiphy_priv(wiphy); 2860 2861 drv_rfkill_poll(local); 2862 } 2863 2864 #ifdef CONFIG_NL80211_TESTMODE 2865 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2866 struct wireless_dev *wdev, 2867 void *data, int len) 2868 { 2869 struct ieee80211_local *local = wiphy_priv(wiphy); 2870 struct ieee80211_vif *vif = NULL; 2871 2872 if (!local->ops->testmode_cmd) 2873 return -EOPNOTSUPP; 2874 2875 if (wdev) { 2876 struct ieee80211_sub_if_data *sdata; 2877 2878 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2879 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2880 vif = &sdata->vif; 2881 } 2882 2883 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2884 } 2885 2886 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2887 struct sk_buff *skb, 2888 struct netlink_callback *cb, 2889 void *data, int len) 2890 { 2891 struct ieee80211_local *local = wiphy_priv(wiphy); 2892 2893 if (!local->ops->testmode_dump) 2894 return -EOPNOTSUPP; 2895 2896 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2897 } 2898 #endif 2899 2900 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2901 enum ieee80211_smps_mode smps_mode) 2902 { 2903 const u8 *ap; 2904 enum ieee80211_smps_mode old_req; 2905 int err; 2906 struct sta_info *sta; 2907 bool tdls_peer_found = false; 2908 2909 lockdep_assert_held(&sdata->wdev.mtx); 2910 2911 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2912 return -EINVAL; 2913 2914 old_req = sdata->u.mgd.req_smps; 2915 sdata->u.mgd.req_smps = smps_mode; 2916 2917 if (old_req == smps_mode && 2918 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2919 return 0; 2920 2921 /* 2922 * If not associated, or current association is not an HT 2923 * association, there's no need to do anything, just store 2924 * the new value until we associate. 2925 */ 2926 if (!sdata->u.mgd.associated || 2927 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2928 return 0; 2929 2930 ap = sdata->u.mgd.associated->bssid; 2931 2932 rcu_read_lock(); 2933 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2934 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2935 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2936 continue; 2937 2938 tdls_peer_found = true; 2939 break; 2940 } 2941 rcu_read_unlock(); 2942 2943 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2944 if (tdls_peer_found || !sdata->u.mgd.powersave) 2945 smps_mode = IEEE80211_SMPS_OFF; 2946 else 2947 smps_mode = IEEE80211_SMPS_DYNAMIC; 2948 } 2949 2950 /* send SM PS frame to AP */ 2951 err = ieee80211_send_smps_action(sdata, smps_mode, 2952 ap, ap); 2953 if (err) 2954 sdata->u.mgd.req_smps = old_req; 2955 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2956 ieee80211_teardown_tdls_peers(sdata); 2957 2958 return err; 2959 } 2960 2961 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2962 bool enabled, int timeout) 2963 { 2964 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2965 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2966 2967 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2968 return -EOPNOTSUPP; 2969 2970 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2971 return -EOPNOTSUPP; 2972 2973 if (enabled == sdata->u.mgd.powersave && 2974 timeout == local->dynamic_ps_forced_timeout) 2975 return 0; 2976 2977 sdata->u.mgd.powersave = enabled; 2978 local->dynamic_ps_forced_timeout = timeout; 2979 2980 /* no change, but if automatic follow powersave */ 2981 sdata_lock(sdata); 2982 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2983 sdata_unlock(sdata); 2984 2985 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2986 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2987 2988 ieee80211_recalc_ps(local); 2989 ieee80211_recalc_ps_vif(sdata); 2990 ieee80211_check_fast_rx_iface(sdata); 2991 2992 return 0; 2993 } 2994 2995 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2996 struct net_device *dev, 2997 s32 rssi_thold, u32 rssi_hyst) 2998 { 2999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3000 struct ieee80211_vif *vif = &sdata->vif; 3001 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3002 3003 if (rssi_thold == bss_conf->cqm_rssi_thold && 3004 rssi_hyst == bss_conf->cqm_rssi_hyst) 3005 return 0; 3006 3007 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 3008 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 3009 return -EOPNOTSUPP; 3010 3011 bss_conf->cqm_rssi_thold = rssi_thold; 3012 bss_conf->cqm_rssi_hyst = rssi_hyst; 3013 bss_conf->cqm_rssi_low = 0; 3014 bss_conf->cqm_rssi_high = 0; 3015 sdata->u.mgd.last_cqm_event_signal = 0; 3016 3017 /* tell the driver upon association, unless already associated */ 3018 if (sdata->u.mgd.associated && 3019 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3020 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3021 3022 return 0; 3023 } 3024 3025 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 3026 struct net_device *dev, 3027 s32 rssi_low, s32 rssi_high) 3028 { 3029 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3030 struct ieee80211_vif *vif = &sdata->vif; 3031 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 3032 3033 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 3034 return -EOPNOTSUPP; 3035 3036 bss_conf->cqm_rssi_low = rssi_low; 3037 bss_conf->cqm_rssi_high = rssi_high; 3038 bss_conf->cqm_rssi_thold = 0; 3039 bss_conf->cqm_rssi_hyst = 0; 3040 sdata->u.mgd.last_cqm_event_signal = 0; 3041 3042 /* tell the driver upon association, unless already associated */ 3043 if (sdata->u.mgd.associated && 3044 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 3045 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 3046 3047 return 0; 3048 } 3049 3050 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 3051 struct net_device *dev, 3052 const u8 *addr, 3053 const struct cfg80211_bitrate_mask *mask) 3054 { 3055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3056 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 3057 int i, ret; 3058 3059 if (!ieee80211_sdata_running(sdata)) 3060 return -ENETDOWN; 3061 3062 /* 3063 * If active validate the setting and reject it if it doesn't leave 3064 * at least one basic rate usable, since we really have to be able 3065 * to send something, and if we're an AP we have to be able to do 3066 * so at a basic rate so that all clients can receive it. 3067 */ 3068 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 3069 sdata->vif.bss_conf.chandef.chan) { 3070 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 3071 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 3072 3073 if (!(mask->control[band].legacy & basic_rates)) 3074 return -EINVAL; 3075 } 3076 3077 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 3078 ret = drv_set_bitrate_mask(local, sdata, mask); 3079 if (ret) 3080 return ret; 3081 } 3082 3083 for (i = 0; i < NUM_NL80211_BANDS; i++) { 3084 struct ieee80211_supported_band *sband = wiphy->bands[i]; 3085 int j; 3086 3087 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 3088 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 3089 sizeof(mask->control[i].ht_mcs)); 3090 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 3091 mask->control[i].vht_mcs, 3092 sizeof(mask->control[i].vht_mcs)); 3093 3094 sdata->rc_has_mcs_mask[i] = false; 3095 sdata->rc_has_vht_mcs_mask[i] = false; 3096 if (!sband) 3097 continue; 3098 3099 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3100 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3101 sdata->rc_has_mcs_mask[i] = true; 3102 break; 3103 } 3104 } 3105 3106 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3107 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3108 sdata->rc_has_vht_mcs_mask[i] = true; 3109 break; 3110 } 3111 } 3112 } 3113 3114 return 0; 3115 } 3116 3117 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3118 struct net_device *dev, 3119 struct cfg80211_chan_def *chandef, 3120 u32 cac_time_ms) 3121 { 3122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3123 struct ieee80211_local *local = sdata->local; 3124 int err; 3125 3126 mutex_lock(&local->mtx); 3127 if (!list_empty(&local->roc_list) || local->scanning) { 3128 err = -EBUSY; 3129 goto out_unlock; 3130 } 3131 3132 /* whatever, but channel contexts should not complain about that one */ 3133 sdata->smps_mode = IEEE80211_SMPS_OFF; 3134 sdata->needed_rx_chains = local->rx_chains; 3135 3136 err = ieee80211_vif_use_channel(sdata, chandef, 3137 IEEE80211_CHANCTX_SHARED); 3138 if (err) 3139 goto out_unlock; 3140 3141 ieee80211_queue_delayed_work(&sdata->local->hw, 3142 &sdata->dfs_cac_timer_work, 3143 msecs_to_jiffies(cac_time_ms)); 3144 3145 out_unlock: 3146 mutex_unlock(&local->mtx); 3147 return err; 3148 } 3149 3150 static void ieee80211_end_cac(struct wiphy *wiphy, 3151 struct net_device *dev) 3152 { 3153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3154 struct ieee80211_local *local = sdata->local; 3155 3156 mutex_lock(&local->mtx); 3157 list_for_each_entry(sdata, &local->interfaces, list) { 3158 /* it might be waiting for the local->mtx, but then 3159 * by the time it gets it, sdata->wdev.cac_started 3160 * will no longer be true 3161 */ 3162 cancel_delayed_work(&sdata->dfs_cac_timer_work); 3163 3164 if (sdata->wdev.cac_started) { 3165 ieee80211_vif_release_channel(sdata); 3166 sdata->wdev.cac_started = false; 3167 } 3168 } 3169 mutex_unlock(&local->mtx); 3170 } 3171 3172 static struct cfg80211_beacon_data * 3173 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3174 { 3175 struct cfg80211_beacon_data *new_beacon; 3176 u8 *pos; 3177 int len; 3178 3179 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3180 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3181 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len + 3182 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies); 3183 3184 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3185 if (!new_beacon) 3186 return NULL; 3187 3188 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { 3189 new_beacon->mbssid_ies = 3190 kzalloc(struct_size(new_beacon->mbssid_ies, 3191 elem, beacon->mbssid_ies->cnt), 3192 GFP_KERNEL); 3193 if (!new_beacon->mbssid_ies) { 3194 kfree(new_beacon); 3195 return NULL; 3196 } 3197 } 3198 3199 pos = (u8 *)(new_beacon + 1); 3200 if (beacon->head_len) { 3201 new_beacon->head_len = beacon->head_len; 3202 new_beacon->head = pos; 3203 memcpy(pos, beacon->head, beacon->head_len); 3204 pos += beacon->head_len; 3205 } 3206 if (beacon->tail_len) { 3207 new_beacon->tail_len = beacon->tail_len; 3208 new_beacon->tail = pos; 3209 memcpy(pos, beacon->tail, beacon->tail_len); 3210 pos += beacon->tail_len; 3211 } 3212 if (beacon->beacon_ies_len) { 3213 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3214 new_beacon->beacon_ies = pos; 3215 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3216 pos += beacon->beacon_ies_len; 3217 } 3218 if (beacon->proberesp_ies_len) { 3219 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3220 new_beacon->proberesp_ies = pos; 3221 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3222 pos += beacon->proberesp_ies_len; 3223 } 3224 if (beacon->assocresp_ies_len) { 3225 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3226 new_beacon->assocresp_ies = pos; 3227 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3228 pos += beacon->assocresp_ies_len; 3229 } 3230 if (beacon->probe_resp_len) { 3231 new_beacon->probe_resp_len = beacon->probe_resp_len; 3232 new_beacon->probe_resp = pos; 3233 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3234 pos += beacon->probe_resp_len; 3235 } 3236 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) 3237 pos += ieee80211_copy_mbssid_beacon(pos, 3238 new_beacon->mbssid_ies, 3239 beacon->mbssid_ies); 3240 3241 /* might copy -1, meaning no changes requested */ 3242 new_beacon->ftm_responder = beacon->ftm_responder; 3243 if (beacon->lci) { 3244 new_beacon->lci_len = beacon->lci_len; 3245 new_beacon->lci = pos; 3246 memcpy(pos, beacon->lci, beacon->lci_len); 3247 pos += beacon->lci_len; 3248 } 3249 if (beacon->civicloc) { 3250 new_beacon->civicloc_len = beacon->civicloc_len; 3251 new_beacon->civicloc = pos; 3252 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3253 pos += beacon->civicloc_len; 3254 } 3255 3256 return new_beacon; 3257 } 3258 3259 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3260 { 3261 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3262 struct ieee80211_local *local = sdata->local; 3263 3264 rcu_read_lock(); 3265 3266 if (vif->mbssid_tx_vif == vif) { 3267 /* Trigger ieee80211_csa_finish() on the non-transmitting 3268 * interfaces when channel switch is received on 3269 * transmitting interface 3270 */ 3271 struct ieee80211_sub_if_data *iter; 3272 3273 list_for_each_entry_rcu(iter, &local->interfaces, list) { 3274 if (!ieee80211_sdata_running(iter)) 3275 continue; 3276 3277 if (iter == sdata || iter->vif.mbssid_tx_vif != vif) 3278 continue; 3279 3280 ieee80211_queue_work(&iter->local->hw, 3281 &iter->csa_finalize_work); 3282 } 3283 } 3284 ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work); 3285 3286 rcu_read_unlock(); 3287 } 3288 EXPORT_SYMBOL(ieee80211_csa_finish); 3289 3290 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) 3291 { 3292 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3293 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3294 struct ieee80211_local *local = sdata->local; 3295 3296 sdata->csa_block_tx = block_tx; 3297 sdata_info(sdata, "channel switch failed, disconnecting\n"); 3298 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); 3299 } 3300 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); 3301 3302 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3303 u32 *changed) 3304 { 3305 int err; 3306 3307 switch (sdata->vif.type) { 3308 case NL80211_IFTYPE_AP: 3309 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3310 NULL, NULL); 3311 if (sdata->u.ap.next_beacon) { 3312 kfree(sdata->u.ap.next_beacon->mbssid_ies); 3313 kfree(sdata->u.ap.next_beacon); 3314 sdata->u.ap.next_beacon = NULL; 3315 } 3316 3317 if (err < 0) 3318 return err; 3319 *changed |= err; 3320 break; 3321 case NL80211_IFTYPE_ADHOC: 3322 err = ieee80211_ibss_finish_csa(sdata); 3323 if (err < 0) 3324 return err; 3325 *changed |= err; 3326 break; 3327 #ifdef CONFIG_MAC80211_MESH 3328 case NL80211_IFTYPE_MESH_POINT: 3329 err = ieee80211_mesh_finish_csa(sdata); 3330 if (err < 0) 3331 return err; 3332 *changed |= err; 3333 break; 3334 #endif 3335 default: 3336 WARN_ON(1); 3337 return -EINVAL; 3338 } 3339 3340 return 0; 3341 } 3342 3343 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3344 { 3345 struct ieee80211_local *local = sdata->local; 3346 u32 changed = 0; 3347 int err; 3348 3349 sdata_assert_lock(sdata); 3350 lockdep_assert_held(&local->mtx); 3351 lockdep_assert_held(&local->chanctx_mtx); 3352 3353 /* 3354 * using reservation isn't immediate as it may be deferred until later 3355 * with multi-vif. once reservation is complete it will re-schedule the 3356 * work with no reserved_chanctx so verify chandef to check if it 3357 * completed successfully 3358 */ 3359 3360 if (sdata->reserved_chanctx) { 3361 /* 3362 * with multi-vif csa driver may call ieee80211_csa_finish() 3363 * many times while waiting for other interfaces to use their 3364 * reservations 3365 */ 3366 if (sdata->reserved_ready) 3367 return 0; 3368 3369 return ieee80211_vif_use_reserved_context(sdata); 3370 } 3371 3372 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3373 &sdata->csa_chandef)) 3374 return -EINVAL; 3375 3376 sdata->vif.csa_active = false; 3377 3378 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3379 if (err) 3380 return err; 3381 3382 ieee80211_bss_info_change_notify(sdata, changed); 3383 3384 if (sdata->csa_block_tx) { 3385 ieee80211_wake_vif_queues(local, sdata, 3386 IEEE80211_QUEUE_STOP_REASON_CSA); 3387 sdata->csa_block_tx = false; 3388 } 3389 3390 err = drv_post_channel_switch(sdata); 3391 if (err) 3392 return err; 3393 3394 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3395 3396 return 0; 3397 } 3398 3399 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3400 { 3401 if (__ieee80211_csa_finalize(sdata)) { 3402 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3403 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3404 GFP_KERNEL); 3405 } 3406 } 3407 3408 void ieee80211_csa_finalize_work(struct work_struct *work) 3409 { 3410 struct ieee80211_sub_if_data *sdata = 3411 container_of(work, struct ieee80211_sub_if_data, 3412 csa_finalize_work); 3413 struct ieee80211_local *local = sdata->local; 3414 3415 sdata_lock(sdata); 3416 mutex_lock(&local->mtx); 3417 mutex_lock(&local->chanctx_mtx); 3418 3419 /* AP might have been stopped while waiting for the lock. */ 3420 if (!sdata->vif.csa_active) 3421 goto unlock; 3422 3423 if (!ieee80211_sdata_running(sdata)) 3424 goto unlock; 3425 3426 ieee80211_csa_finalize(sdata); 3427 3428 unlock: 3429 mutex_unlock(&local->chanctx_mtx); 3430 mutex_unlock(&local->mtx); 3431 sdata_unlock(sdata); 3432 } 3433 3434 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3435 struct cfg80211_csa_settings *params, 3436 u32 *changed) 3437 { 3438 struct ieee80211_csa_settings csa = {}; 3439 int err; 3440 3441 switch (sdata->vif.type) { 3442 case NL80211_IFTYPE_AP: 3443 sdata->u.ap.next_beacon = 3444 cfg80211_beacon_dup(¶ms->beacon_after); 3445 if (!sdata->u.ap.next_beacon) 3446 return -ENOMEM; 3447 3448 /* 3449 * With a count of 0, we don't have to wait for any 3450 * TBTT before switching, so complete the CSA 3451 * immediately. In theory, with a count == 1 we 3452 * should delay the switch until just before the next 3453 * TBTT, but that would complicate things so we switch 3454 * immediately too. If we would delay the switch 3455 * until the next TBTT, we would have to set the probe 3456 * response here. 3457 * 3458 * TODO: A channel switch with count <= 1 without 3459 * sending a CSA action frame is kind of useless, 3460 * because the clients won't know we're changing 3461 * channels. The action frame must be implemented 3462 * either here or in the userspace. 3463 */ 3464 if (params->count <= 1) 3465 break; 3466 3467 if ((params->n_counter_offsets_beacon > 3468 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3469 (params->n_counter_offsets_presp > 3470 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { 3471 kfree(sdata->u.ap.next_beacon->mbssid_ies); 3472 kfree(sdata->u.ap.next_beacon); 3473 sdata->u.ap.next_beacon = NULL; 3474 return -EINVAL; 3475 } 3476 3477 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3478 csa.counter_offsets_presp = params->counter_offsets_presp; 3479 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3480 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3481 csa.count = params->count; 3482 3483 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL); 3484 if (err < 0) { 3485 kfree(sdata->u.ap.next_beacon->mbssid_ies); 3486 kfree(sdata->u.ap.next_beacon); 3487 sdata->u.ap.next_beacon = NULL; 3488 return err; 3489 } 3490 *changed |= err; 3491 3492 break; 3493 case NL80211_IFTYPE_ADHOC: 3494 if (!sdata->vif.bss_conf.ibss_joined) 3495 return -EINVAL; 3496 3497 if (params->chandef.width != sdata->u.ibss.chandef.width) 3498 return -EINVAL; 3499 3500 switch (params->chandef.width) { 3501 case NL80211_CHAN_WIDTH_40: 3502 if (cfg80211_get_chandef_type(¶ms->chandef) != 3503 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3504 return -EINVAL; 3505 break; 3506 case NL80211_CHAN_WIDTH_5: 3507 case NL80211_CHAN_WIDTH_10: 3508 case NL80211_CHAN_WIDTH_20_NOHT: 3509 case NL80211_CHAN_WIDTH_20: 3510 break; 3511 default: 3512 return -EINVAL; 3513 } 3514 3515 /* changes into another band are not supported */ 3516 if (sdata->u.ibss.chandef.chan->band != 3517 params->chandef.chan->band) 3518 return -EINVAL; 3519 3520 /* see comments in the NL80211_IFTYPE_AP block */ 3521 if (params->count > 1) { 3522 err = ieee80211_ibss_csa_beacon(sdata, params); 3523 if (err < 0) 3524 return err; 3525 *changed |= err; 3526 } 3527 3528 ieee80211_send_action_csa(sdata, params); 3529 3530 break; 3531 #ifdef CONFIG_MAC80211_MESH 3532 case NL80211_IFTYPE_MESH_POINT: { 3533 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3534 3535 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3536 return -EINVAL; 3537 3538 /* changes into another band are not supported */ 3539 if (sdata->vif.bss_conf.chandef.chan->band != 3540 params->chandef.chan->band) 3541 return -EINVAL; 3542 3543 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3544 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3545 if (!ifmsh->pre_value) 3546 ifmsh->pre_value = 1; 3547 else 3548 ifmsh->pre_value++; 3549 } 3550 3551 /* see comments in the NL80211_IFTYPE_AP block */ 3552 if (params->count > 1) { 3553 err = ieee80211_mesh_csa_beacon(sdata, params); 3554 if (err < 0) { 3555 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3556 return err; 3557 } 3558 *changed |= err; 3559 } 3560 3561 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3562 ieee80211_send_action_csa(sdata, params); 3563 3564 break; 3565 } 3566 #endif 3567 default: 3568 return -EOPNOTSUPP; 3569 } 3570 3571 return 0; 3572 } 3573 3574 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3575 { 3576 sdata->vif.color_change_active = false; 3577 if (sdata->u.ap.next_beacon) { 3578 kfree(sdata->u.ap.next_beacon->mbssid_ies); 3579 kfree(sdata->u.ap.next_beacon); 3580 sdata->u.ap.next_beacon = NULL; 3581 } 3582 3583 cfg80211_color_change_aborted_notify(sdata->dev); 3584 } 3585 3586 static int 3587 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3588 struct cfg80211_csa_settings *params) 3589 { 3590 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3591 struct ieee80211_local *local = sdata->local; 3592 struct ieee80211_channel_switch ch_switch; 3593 struct ieee80211_chanctx_conf *conf; 3594 struct ieee80211_chanctx *chanctx; 3595 u32 changed = 0; 3596 int err; 3597 3598 sdata_assert_lock(sdata); 3599 lockdep_assert_held(&local->mtx); 3600 3601 if (!list_empty(&local->roc_list) || local->scanning) 3602 return -EBUSY; 3603 3604 if (sdata->wdev.cac_started) 3605 return -EBUSY; 3606 3607 if (cfg80211_chandef_identical(¶ms->chandef, 3608 &sdata->vif.bss_conf.chandef)) 3609 return -EINVAL; 3610 3611 /* don't allow another channel switch if one is already active. */ 3612 if (sdata->vif.csa_active) 3613 return -EBUSY; 3614 3615 mutex_lock(&local->chanctx_mtx); 3616 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3617 lockdep_is_held(&local->chanctx_mtx)); 3618 if (!conf) { 3619 err = -EBUSY; 3620 goto out; 3621 } 3622 3623 if (params->chandef.chan->freq_offset) { 3624 /* this may work, but is untested */ 3625 err = -EOPNOTSUPP; 3626 goto out; 3627 } 3628 3629 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3630 3631 ch_switch.timestamp = 0; 3632 ch_switch.device_timestamp = 0; 3633 ch_switch.block_tx = params->block_tx; 3634 ch_switch.chandef = params->chandef; 3635 ch_switch.count = params->count; 3636 3637 err = drv_pre_channel_switch(sdata, &ch_switch); 3638 if (err) 3639 goto out; 3640 3641 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3642 chanctx->mode, 3643 params->radar_required); 3644 if (err) 3645 goto out; 3646 3647 /* if reservation is invalid then this will fail */ 3648 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3649 if (err) { 3650 ieee80211_vif_unreserve_chanctx(sdata); 3651 goto out; 3652 } 3653 3654 /* if there is a color change in progress, abort it */ 3655 if (sdata->vif.color_change_active) 3656 ieee80211_color_change_abort(sdata); 3657 3658 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3659 if (err) { 3660 ieee80211_vif_unreserve_chanctx(sdata); 3661 goto out; 3662 } 3663 3664 sdata->csa_chandef = params->chandef; 3665 sdata->csa_block_tx = params->block_tx; 3666 sdata->vif.csa_active = true; 3667 3668 if (sdata->csa_block_tx) 3669 ieee80211_stop_vif_queues(local, sdata, 3670 IEEE80211_QUEUE_STOP_REASON_CSA); 3671 3672 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3673 params->count, params->block_tx); 3674 3675 if (changed) { 3676 ieee80211_bss_info_change_notify(sdata, changed); 3677 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3678 } else { 3679 /* if the beacon didn't change, we can finalize immediately */ 3680 ieee80211_csa_finalize(sdata); 3681 } 3682 3683 out: 3684 mutex_unlock(&local->chanctx_mtx); 3685 return err; 3686 } 3687 3688 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3689 struct cfg80211_csa_settings *params) 3690 { 3691 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3692 struct ieee80211_local *local = sdata->local; 3693 int err; 3694 3695 mutex_lock(&local->mtx); 3696 err = __ieee80211_channel_switch(wiphy, dev, params); 3697 mutex_unlock(&local->mtx); 3698 3699 return err; 3700 } 3701 3702 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3703 { 3704 lockdep_assert_held(&local->mtx); 3705 3706 local->roc_cookie_counter++; 3707 3708 /* wow, you wrapped 64 bits ... more likely a bug */ 3709 if (WARN_ON(local->roc_cookie_counter == 0)) 3710 local->roc_cookie_counter++; 3711 3712 return local->roc_cookie_counter; 3713 } 3714 3715 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3716 u64 *cookie, gfp_t gfp) 3717 { 3718 unsigned long spin_flags; 3719 struct sk_buff *ack_skb; 3720 int id; 3721 3722 ack_skb = skb_copy(skb, gfp); 3723 if (!ack_skb) 3724 return -ENOMEM; 3725 3726 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3727 id = idr_alloc(&local->ack_status_frames, ack_skb, 3728 1, 0x2000, GFP_ATOMIC); 3729 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3730 3731 if (id < 0) { 3732 kfree_skb(ack_skb); 3733 return -ENOMEM; 3734 } 3735 3736 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3737 3738 *cookie = ieee80211_mgmt_tx_cookie(local); 3739 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3740 3741 return 0; 3742 } 3743 3744 static void 3745 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3746 struct wireless_dev *wdev, 3747 struct mgmt_frame_regs *upd) 3748 { 3749 struct ieee80211_local *local = wiphy_priv(wiphy); 3750 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3751 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3752 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3753 bool global_change, intf_change; 3754 3755 global_change = 3756 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3757 (local->rx_mcast_action_reg != 3758 !!(upd->global_mcast_stypes & action_mask)); 3759 local->probe_req_reg = upd->global_stypes & preq_mask; 3760 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3761 3762 intf_change = (sdata->vif.probe_req_reg != 3763 !!(upd->interface_stypes & preq_mask)) || 3764 (sdata->vif.rx_mcast_action_reg != 3765 !!(upd->interface_mcast_stypes & action_mask)); 3766 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3767 sdata->vif.rx_mcast_action_reg = 3768 upd->interface_mcast_stypes & action_mask; 3769 3770 if (!local->open_count) 3771 return; 3772 3773 if (intf_change && ieee80211_sdata_running(sdata)) 3774 drv_config_iface_filter(local, sdata, 3775 sdata->vif.probe_req_reg ? 3776 FIF_PROBE_REQ : 0, 3777 FIF_PROBE_REQ); 3778 3779 if (global_change) 3780 ieee80211_configure_filter(local); 3781 } 3782 3783 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3784 { 3785 struct ieee80211_local *local = wiphy_priv(wiphy); 3786 3787 if (local->started) 3788 return -EOPNOTSUPP; 3789 3790 return drv_set_antenna(local, tx_ant, rx_ant); 3791 } 3792 3793 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3794 { 3795 struct ieee80211_local *local = wiphy_priv(wiphy); 3796 3797 return drv_get_antenna(local, tx_ant, rx_ant); 3798 } 3799 3800 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3801 struct net_device *dev, 3802 struct cfg80211_gtk_rekey_data *data) 3803 { 3804 struct ieee80211_local *local = wiphy_priv(wiphy); 3805 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3806 3807 if (!local->ops->set_rekey_data) 3808 return -EOPNOTSUPP; 3809 3810 drv_set_rekey_data(local, sdata, data); 3811 3812 return 0; 3813 } 3814 3815 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3816 const u8 *peer, u64 *cookie) 3817 { 3818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3819 struct ieee80211_local *local = sdata->local; 3820 struct ieee80211_qos_hdr *nullfunc; 3821 struct sk_buff *skb; 3822 int size = sizeof(*nullfunc); 3823 __le16 fc; 3824 bool qos; 3825 struct ieee80211_tx_info *info; 3826 struct sta_info *sta; 3827 struct ieee80211_chanctx_conf *chanctx_conf; 3828 enum nl80211_band band; 3829 int ret; 3830 3831 /* the lock is needed to assign the cookie later */ 3832 mutex_lock(&local->mtx); 3833 3834 rcu_read_lock(); 3835 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3836 if (WARN_ON(!chanctx_conf)) { 3837 ret = -EINVAL; 3838 goto unlock; 3839 } 3840 band = chanctx_conf->def.chan->band; 3841 sta = sta_info_get_bss(sdata, peer); 3842 if (sta) { 3843 qos = sta->sta.wme; 3844 } else { 3845 ret = -ENOLINK; 3846 goto unlock; 3847 } 3848 3849 if (qos) { 3850 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3851 IEEE80211_STYPE_QOS_NULLFUNC | 3852 IEEE80211_FCTL_FROMDS); 3853 } else { 3854 size -= 2; 3855 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3856 IEEE80211_STYPE_NULLFUNC | 3857 IEEE80211_FCTL_FROMDS); 3858 } 3859 3860 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3861 if (!skb) { 3862 ret = -ENOMEM; 3863 goto unlock; 3864 } 3865 3866 skb->dev = dev; 3867 3868 skb_reserve(skb, local->hw.extra_tx_headroom); 3869 3870 nullfunc = skb_put(skb, size); 3871 nullfunc->frame_control = fc; 3872 nullfunc->duration_id = 0; 3873 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3874 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3875 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3876 nullfunc->seq_ctrl = 0; 3877 3878 info = IEEE80211_SKB_CB(skb); 3879 3880 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3881 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3882 info->band = band; 3883 3884 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3885 skb->priority = 7; 3886 if (qos) 3887 nullfunc->qos_ctrl = cpu_to_le16(7); 3888 3889 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3890 if (ret) { 3891 kfree_skb(skb); 3892 goto unlock; 3893 } 3894 3895 local_bh_disable(); 3896 ieee80211_xmit(sdata, sta, skb); 3897 local_bh_enable(); 3898 3899 ret = 0; 3900 unlock: 3901 rcu_read_unlock(); 3902 mutex_unlock(&local->mtx); 3903 3904 return ret; 3905 } 3906 3907 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3908 struct wireless_dev *wdev, 3909 struct cfg80211_chan_def *chandef) 3910 { 3911 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3912 struct ieee80211_local *local = wiphy_priv(wiphy); 3913 struct ieee80211_chanctx_conf *chanctx_conf; 3914 int ret = -ENODATA; 3915 3916 rcu_read_lock(); 3917 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3918 if (chanctx_conf) { 3919 *chandef = sdata->vif.bss_conf.chandef; 3920 ret = 0; 3921 } else if (local->open_count > 0 && 3922 local->open_count == local->monitors && 3923 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3924 if (local->use_chanctx) 3925 *chandef = local->monitor_chandef; 3926 else 3927 *chandef = local->_oper_chandef; 3928 ret = 0; 3929 } 3930 rcu_read_unlock(); 3931 3932 return ret; 3933 } 3934 3935 #ifdef CONFIG_PM 3936 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3937 { 3938 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3939 } 3940 #endif 3941 3942 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3943 struct net_device *dev, 3944 struct cfg80211_qos_map *qos_map) 3945 { 3946 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3947 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3948 3949 if (qos_map) { 3950 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3951 if (!new_qos_map) 3952 return -ENOMEM; 3953 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3954 } else { 3955 /* A NULL qos_map was passed to disable QoS mapping */ 3956 new_qos_map = NULL; 3957 } 3958 3959 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3960 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3961 if (old_qos_map) 3962 kfree_rcu(old_qos_map, rcu_head); 3963 3964 return 0; 3965 } 3966 3967 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3968 struct net_device *dev, 3969 struct cfg80211_chan_def *chandef) 3970 { 3971 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3972 int ret; 3973 u32 changed = 0; 3974 3975 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3976 if (ret == 0) 3977 ieee80211_bss_info_change_notify(sdata, changed); 3978 3979 return ret; 3980 } 3981 3982 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3983 u8 tsid, const u8 *peer, u8 up, 3984 u16 admitted_time) 3985 { 3986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3987 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3988 int ac = ieee802_1d_to_ac[up]; 3989 3990 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3991 return -EOPNOTSUPP; 3992 3993 if (!(sdata->wmm_acm & BIT(up))) 3994 return -EINVAL; 3995 3996 if (ifmgd->tx_tspec[ac].admitted_time) 3997 return -EBUSY; 3998 3999 if (admitted_time) { 4000 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 4001 ifmgd->tx_tspec[ac].tsid = tsid; 4002 ifmgd->tx_tspec[ac].up = up; 4003 } 4004 4005 return 0; 4006 } 4007 4008 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 4009 u8 tsid, const u8 *peer) 4010 { 4011 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4012 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 4013 struct ieee80211_local *local = wiphy_priv(wiphy); 4014 int ac; 4015 4016 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4017 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 4018 4019 /* skip unused entries */ 4020 if (!tx_tspec->admitted_time) 4021 continue; 4022 4023 if (tx_tspec->tsid != tsid) 4024 continue; 4025 4026 /* due to this new packets will be reassigned to non-ACM ACs */ 4027 tx_tspec->up = -1; 4028 4029 /* Make sure that all packets have been sent to avoid to 4030 * restore the QoS params on packets that are still on the 4031 * queues. 4032 */ 4033 synchronize_net(); 4034 ieee80211_flush_queues(local, sdata, false); 4035 4036 /* restore the normal QoS parameters 4037 * (unconditionally to avoid races) 4038 */ 4039 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 4040 tx_tspec->downgraded = false; 4041 ieee80211_sta_handle_tspec_ac_params(sdata); 4042 4043 /* finally clear all the data */ 4044 memset(tx_tspec, 0, sizeof(*tx_tspec)); 4045 4046 return 0; 4047 } 4048 4049 return -ENOENT; 4050 } 4051 4052 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 4053 u8 inst_id, 4054 enum nl80211_nan_func_term_reason reason, 4055 gfp_t gfp) 4056 { 4057 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4058 struct cfg80211_nan_func *func; 4059 u64 cookie; 4060 4061 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4062 return; 4063 4064 spin_lock_bh(&sdata->u.nan.func_lock); 4065 4066 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 4067 if (WARN_ON(!func)) { 4068 spin_unlock_bh(&sdata->u.nan.func_lock); 4069 return; 4070 } 4071 4072 cookie = func->cookie; 4073 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 4074 4075 spin_unlock_bh(&sdata->u.nan.func_lock); 4076 4077 cfg80211_free_nan_func(func); 4078 4079 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 4080 reason, cookie, gfp); 4081 } 4082 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 4083 4084 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 4085 struct cfg80211_nan_match_params *match, 4086 gfp_t gfp) 4087 { 4088 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4089 struct cfg80211_nan_func *func; 4090 4091 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 4092 return; 4093 4094 spin_lock_bh(&sdata->u.nan.func_lock); 4095 4096 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 4097 if (WARN_ON(!func)) { 4098 spin_unlock_bh(&sdata->u.nan.func_lock); 4099 return; 4100 } 4101 match->cookie = func->cookie; 4102 4103 spin_unlock_bh(&sdata->u.nan.func_lock); 4104 4105 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 4106 } 4107 EXPORT_SYMBOL(ieee80211_nan_func_match); 4108 4109 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 4110 struct net_device *dev, 4111 const bool enabled) 4112 { 4113 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4114 4115 sdata->u.ap.multicast_to_unicast = enabled; 4116 4117 return 0; 4118 } 4119 4120 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 4121 struct txq_info *txqi) 4122 { 4123 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 4124 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 4125 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 4126 } 4127 4128 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 4129 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 4130 txqstats->backlog_packets = txqi->tin.backlog_packets; 4131 } 4132 4133 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 4134 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 4135 txqstats->flows = txqi->tin.flows; 4136 } 4137 4138 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 4139 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 4140 txqstats->drops = txqi->cstats.drop_count; 4141 } 4142 4143 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 4144 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 4145 txqstats->ecn_marks = txqi->cstats.ecn_mark; 4146 } 4147 4148 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 4149 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 4150 txqstats->overlimit = txqi->tin.overlimit; 4151 } 4152 4153 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 4154 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4155 txqstats->collisions = txqi->tin.collisions; 4156 } 4157 4158 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4159 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4160 txqstats->tx_bytes = txqi->tin.tx_bytes; 4161 } 4162 4163 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4164 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4165 txqstats->tx_packets = txqi->tin.tx_packets; 4166 } 4167 } 4168 4169 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4170 struct wireless_dev *wdev, 4171 struct cfg80211_txq_stats *txqstats) 4172 { 4173 struct ieee80211_local *local = wiphy_priv(wiphy); 4174 struct ieee80211_sub_if_data *sdata; 4175 int ret = 0; 4176 4177 if (!local->ops->wake_tx_queue) 4178 return 1; 4179 4180 spin_lock_bh(&local->fq.lock); 4181 rcu_read_lock(); 4182 4183 if (wdev) { 4184 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4185 if (!sdata->vif.txq) { 4186 ret = 1; 4187 goto out; 4188 } 4189 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4190 } else { 4191 /* phy stats */ 4192 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4193 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4194 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4195 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4196 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4197 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4198 txqstats->backlog_packets = local->fq.backlog; 4199 txqstats->backlog_bytes = local->fq.memory_usage; 4200 txqstats->overlimit = local->fq.overlimit; 4201 txqstats->overmemory = local->fq.overmemory; 4202 txqstats->collisions = local->fq.collisions; 4203 txqstats->max_flows = local->fq.flows_cnt; 4204 } 4205 4206 out: 4207 rcu_read_unlock(); 4208 spin_unlock_bh(&local->fq.lock); 4209 4210 return ret; 4211 } 4212 4213 static int 4214 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4215 struct net_device *dev, 4216 struct cfg80211_ftm_responder_stats *ftm_stats) 4217 { 4218 struct ieee80211_local *local = wiphy_priv(wiphy); 4219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4220 4221 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4222 } 4223 4224 static int 4225 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4226 struct cfg80211_pmsr_request *request) 4227 { 4228 struct ieee80211_local *local = wiphy_priv(wiphy); 4229 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4230 4231 return drv_start_pmsr(local, sdata, request); 4232 } 4233 4234 static void 4235 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4236 struct cfg80211_pmsr_request *request) 4237 { 4238 struct ieee80211_local *local = wiphy_priv(wiphy); 4239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4240 4241 return drv_abort_pmsr(local, sdata, request); 4242 } 4243 4244 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4245 struct net_device *dev, 4246 struct cfg80211_tid_config *tid_conf) 4247 { 4248 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4249 struct sta_info *sta; 4250 int ret; 4251 4252 if (!sdata->local->ops->set_tid_config) 4253 return -EOPNOTSUPP; 4254 4255 if (!tid_conf->peer) 4256 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4257 4258 mutex_lock(&sdata->local->sta_mtx); 4259 sta = sta_info_get_bss(sdata, tid_conf->peer); 4260 if (!sta) { 4261 mutex_unlock(&sdata->local->sta_mtx); 4262 return -ENOENT; 4263 } 4264 4265 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4266 mutex_unlock(&sdata->local->sta_mtx); 4267 4268 return ret; 4269 } 4270 4271 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4272 struct net_device *dev, 4273 const u8 *peer, u8 tids) 4274 { 4275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4276 struct sta_info *sta; 4277 int ret; 4278 4279 if (!sdata->local->ops->reset_tid_config) 4280 return -EOPNOTSUPP; 4281 4282 if (!peer) 4283 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4284 4285 mutex_lock(&sdata->local->sta_mtx); 4286 sta = sta_info_get_bss(sdata, peer); 4287 if (!sta) { 4288 mutex_unlock(&sdata->local->sta_mtx); 4289 return -ENOENT; 4290 } 4291 4292 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4293 mutex_unlock(&sdata->local->sta_mtx); 4294 4295 return ret; 4296 } 4297 4298 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4299 struct cfg80211_sar_specs *sar) 4300 { 4301 struct ieee80211_local *local = wiphy_priv(wiphy); 4302 4303 if (!local->ops->set_sar_specs) 4304 return -EOPNOTSUPP; 4305 4306 return local->ops->set_sar_specs(&local->hw, sar); 4307 } 4308 4309 static int 4310 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4311 u32 *changed) 4312 { 4313 switch (sdata->vif.type) { 4314 case NL80211_IFTYPE_AP: { 4315 int ret; 4316 4317 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 4318 NULL, NULL); 4319 if (sdata->u.ap.next_beacon) { 4320 kfree(sdata->u.ap.next_beacon->mbssid_ies); 4321 kfree(sdata->u.ap.next_beacon); 4322 sdata->u.ap.next_beacon = NULL; 4323 } 4324 4325 if (ret < 0) 4326 return ret; 4327 4328 *changed |= ret; 4329 break; 4330 } 4331 default: 4332 WARN_ON_ONCE(1); 4333 return -EINVAL; 4334 } 4335 4336 return 0; 4337 } 4338 4339 static int 4340 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4341 struct cfg80211_color_change_settings *params, 4342 u32 *changed) 4343 { 4344 struct ieee80211_color_change_settings color_change = {}; 4345 int err; 4346 4347 switch (sdata->vif.type) { 4348 case NL80211_IFTYPE_AP: 4349 sdata->u.ap.next_beacon = 4350 cfg80211_beacon_dup(¶ms->beacon_next); 4351 if (!sdata->u.ap.next_beacon) 4352 return -ENOMEM; 4353 4354 if (params->count <= 1) 4355 break; 4356 4357 color_change.counter_offset_beacon = 4358 params->counter_offset_beacon; 4359 color_change.counter_offset_presp = 4360 params->counter_offset_presp; 4361 color_change.count = params->count; 4362 4363 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change, 4364 NULL, &color_change); 4365 if (err < 0) { 4366 if (sdata->u.ap.next_beacon) { 4367 kfree(sdata->u.ap.next_beacon->mbssid_ies); 4368 kfree(sdata->u.ap.next_beacon); 4369 sdata->u.ap.next_beacon = NULL; 4370 } 4371 return err; 4372 } 4373 *changed |= err; 4374 break; 4375 default: 4376 return -EOPNOTSUPP; 4377 } 4378 4379 return 0; 4380 } 4381 4382 static void 4383 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4384 u8 color, int enable, u32 changed) 4385 { 4386 sdata->vif.bss_conf.he_bss_color.color = color; 4387 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4388 changed |= BSS_CHANGED_HE_BSS_COLOR; 4389 4390 ieee80211_bss_info_change_notify(sdata, changed); 4391 4392 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { 4393 struct ieee80211_sub_if_data *child; 4394 4395 mutex_lock(&sdata->local->iflist_mtx); 4396 list_for_each_entry(child, &sdata->local->interfaces, list) { 4397 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { 4398 child->vif.bss_conf.he_bss_color.color = color; 4399 child->vif.bss_conf.he_bss_color.enabled = enable; 4400 ieee80211_bss_info_change_notify(child, 4401 BSS_CHANGED_HE_BSS_COLOR); 4402 } 4403 } 4404 mutex_unlock(&sdata->local->iflist_mtx); 4405 } 4406 } 4407 4408 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4409 { 4410 struct ieee80211_local *local = sdata->local; 4411 u32 changed = 0; 4412 int err; 4413 4414 sdata_assert_lock(sdata); 4415 lockdep_assert_held(&local->mtx); 4416 4417 sdata->vif.color_change_active = false; 4418 4419 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4420 if (err) { 4421 cfg80211_color_change_aborted_notify(sdata->dev); 4422 return err; 4423 } 4424 4425 ieee80211_color_change_bss_config_notify(sdata, 4426 sdata->vif.color_change_color, 4427 1, changed); 4428 cfg80211_color_change_notify(sdata->dev); 4429 4430 return 0; 4431 } 4432 4433 void ieee80211_color_change_finalize_work(struct work_struct *work) 4434 { 4435 struct ieee80211_sub_if_data *sdata = 4436 container_of(work, struct ieee80211_sub_if_data, 4437 color_change_finalize_work); 4438 struct ieee80211_local *local = sdata->local; 4439 4440 sdata_lock(sdata); 4441 mutex_lock(&local->mtx); 4442 4443 /* AP might have been stopped while waiting for the lock. */ 4444 if (!sdata->vif.color_change_active) 4445 goto unlock; 4446 4447 if (!ieee80211_sdata_running(sdata)) 4448 goto unlock; 4449 4450 ieee80211_color_change_finalize(sdata); 4451 4452 unlock: 4453 mutex_unlock(&local->mtx); 4454 sdata_unlock(sdata); 4455 } 4456 4457 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4458 { 4459 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4460 4461 ieee80211_queue_work(&sdata->local->hw, 4462 &sdata->color_change_finalize_work); 4463 } 4464 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4465 4466 void 4467 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4468 u64 color_bitmap) 4469 { 4470 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4471 4472 if (sdata->vif.color_change_active || sdata->vif.csa_active) 4473 return; 4474 4475 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap); 4476 } 4477 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); 4478 4479 static int 4480 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4481 struct cfg80211_color_change_settings *params) 4482 { 4483 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4484 struct ieee80211_local *local = sdata->local; 4485 u32 changed = 0; 4486 int err; 4487 4488 sdata_assert_lock(sdata); 4489 4490 if (sdata->vif.bss_conf.nontransmitted) 4491 return -EINVAL; 4492 4493 mutex_lock(&local->mtx); 4494 4495 /* don't allow another color change if one is already active or if csa 4496 * is active 4497 */ 4498 if (sdata->vif.color_change_active || sdata->vif.csa_active) { 4499 err = -EBUSY; 4500 goto out; 4501 } 4502 4503 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4504 if (err) 4505 goto out; 4506 4507 sdata->vif.color_change_active = true; 4508 sdata->vif.color_change_color = params->color; 4509 4510 cfg80211_color_change_started_notify(sdata->dev, params->count); 4511 4512 if (changed) 4513 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4514 else 4515 /* if the beacon didn't change, we can finalize immediately */ 4516 ieee80211_color_change_finalize(sdata); 4517 4518 out: 4519 mutex_unlock(&local->mtx); 4520 4521 return err; 4522 } 4523 4524 static int 4525 ieee80211_set_radar_background(struct wiphy *wiphy, 4526 struct cfg80211_chan_def *chandef) 4527 { 4528 struct ieee80211_local *local = wiphy_priv(wiphy); 4529 4530 if (!local->ops->set_radar_background) 4531 return -EOPNOTSUPP; 4532 4533 return local->ops->set_radar_background(&local->hw, chandef); 4534 } 4535 4536 const struct cfg80211_ops mac80211_config_ops = { 4537 .add_virtual_intf = ieee80211_add_iface, 4538 .del_virtual_intf = ieee80211_del_iface, 4539 .change_virtual_intf = ieee80211_change_iface, 4540 .start_p2p_device = ieee80211_start_p2p_device, 4541 .stop_p2p_device = ieee80211_stop_p2p_device, 4542 .add_key = ieee80211_add_key, 4543 .del_key = ieee80211_del_key, 4544 .get_key = ieee80211_get_key, 4545 .set_default_key = ieee80211_config_default_key, 4546 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4547 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4548 .start_ap = ieee80211_start_ap, 4549 .change_beacon = ieee80211_change_beacon, 4550 .stop_ap = ieee80211_stop_ap, 4551 .add_station = ieee80211_add_station, 4552 .del_station = ieee80211_del_station, 4553 .change_station = ieee80211_change_station, 4554 .get_station = ieee80211_get_station, 4555 .dump_station = ieee80211_dump_station, 4556 .dump_survey = ieee80211_dump_survey, 4557 #ifdef CONFIG_MAC80211_MESH 4558 .add_mpath = ieee80211_add_mpath, 4559 .del_mpath = ieee80211_del_mpath, 4560 .change_mpath = ieee80211_change_mpath, 4561 .get_mpath = ieee80211_get_mpath, 4562 .dump_mpath = ieee80211_dump_mpath, 4563 .get_mpp = ieee80211_get_mpp, 4564 .dump_mpp = ieee80211_dump_mpp, 4565 .update_mesh_config = ieee80211_update_mesh_config, 4566 .get_mesh_config = ieee80211_get_mesh_config, 4567 .join_mesh = ieee80211_join_mesh, 4568 .leave_mesh = ieee80211_leave_mesh, 4569 #endif 4570 .join_ocb = ieee80211_join_ocb, 4571 .leave_ocb = ieee80211_leave_ocb, 4572 .change_bss = ieee80211_change_bss, 4573 .set_txq_params = ieee80211_set_txq_params, 4574 .set_monitor_channel = ieee80211_set_monitor_channel, 4575 .suspend = ieee80211_suspend, 4576 .resume = ieee80211_resume, 4577 .scan = ieee80211_scan, 4578 .abort_scan = ieee80211_abort_scan, 4579 .sched_scan_start = ieee80211_sched_scan_start, 4580 .sched_scan_stop = ieee80211_sched_scan_stop, 4581 .auth = ieee80211_auth, 4582 .assoc = ieee80211_assoc, 4583 .deauth = ieee80211_deauth, 4584 .disassoc = ieee80211_disassoc, 4585 .join_ibss = ieee80211_join_ibss, 4586 .leave_ibss = ieee80211_leave_ibss, 4587 .set_mcast_rate = ieee80211_set_mcast_rate, 4588 .set_wiphy_params = ieee80211_set_wiphy_params, 4589 .set_tx_power = ieee80211_set_tx_power, 4590 .get_tx_power = ieee80211_get_tx_power, 4591 .rfkill_poll = ieee80211_rfkill_poll, 4592 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4593 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4594 .set_power_mgmt = ieee80211_set_power_mgmt, 4595 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4596 .remain_on_channel = ieee80211_remain_on_channel, 4597 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4598 .mgmt_tx = ieee80211_mgmt_tx, 4599 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4600 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4601 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4602 .update_mgmt_frame_registrations = 4603 ieee80211_update_mgmt_frame_registrations, 4604 .set_antenna = ieee80211_set_antenna, 4605 .get_antenna = ieee80211_get_antenna, 4606 .set_rekey_data = ieee80211_set_rekey_data, 4607 .tdls_oper = ieee80211_tdls_oper, 4608 .tdls_mgmt = ieee80211_tdls_mgmt, 4609 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4610 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4611 .probe_client = ieee80211_probe_client, 4612 .set_noack_map = ieee80211_set_noack_map, 4613 #ifdef CONFIG_PM 4614 .set_wakeup = ieee80211_set_wakeup, 4615 #endif 4616 .get_channel = ieee80211_cfg_get_channel, 4617 .start_radar_detection = ieee80211_start_radar_detection, 4618 .end_cac = ieee80211_end_cac, 4619 .channel_switch = ieee80211_channel_switch, 4620 .set_qos_map = ieee80211_set_qos_map, 4621 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4622 .add_tx_ts = ieee80211_add_tx_ts, 4623 .del_tx_ts = ieee80211_del_tx_ts, 4624 .start_nan = ieee80211_start_nan, 4625 .stop_nan = ieee80211_stop_nan, 4626 .nan_change_conf = ieee80211_nan_change_conf, 4627 .add_nan_func = ieee80211_add_nan_func, 4628 .del_nan_func = ieee80211_del_nan_func, 4629 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4630 .tx_control_port = ieee80211_tx_control_port, 4631 .get_txq_stats = ieee80211_get_txq_stats, 4632 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4633 .start_pmsr = ieee80211_start_pmsr, 4634 .abort_pmsr = ieee80211_abort_pmsr, 4635 .probe_mesh_link = ieee80211_probe_mesh_link, 4636 .set_tid_config = ieee80211_set_tid_config, 4637 .reset_tid_config = ieee80211_reset_tid_config, 4638 .set_sar_specs = ieee80211_set_sar_specs, 4639 .color_change = ieee80211_color_change, 4640 .set_radar_background = ieee80211_set_radar_background, 4641 }; 4642