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) 2018-2020 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 = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 355 const u8 *mac_addr, u8 key_idx) 356 { 357 struct ieee80211_local *local = sdata->local; 358 struct ieee80211_key *key; 359 struct sta_info *sta; 360 int ret = -EINVAL; 361 362 if (!wiphy_ext_feature_isset(local->hw.wiphy, 363 NL80211_EXT_FEATURE_EXT_KEY_ID)) 364 return -EINVAL; 365 366 sta = sta_info_get_bss(sdata, mac_addr); 367 368 if (!sta) 369 return -EINVAL; 370 371 if (sta->ptk_idx == key_idx) 372 return 0; 373 374 mutex_lock(&local->key_mtx); 375 key = key_mtx_dereference(local, sta->ptk[key_idx]); 376 377 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 378 ret = ieee80211_set_tx_key(key); 379 380 mutex_unlock(&local->key_mtx); 381 return ret; 382 } 383 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 385 u8 key_idx, bool pairwise, const u8 *mac_addr, 386 struct key_params *params) 387 { 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 389 struct ieee80211_local *local = sdata->local; 390 struct sta_info *sta = NULL; 391 const struct ieee80211_cipher_scheme *cs = NULL; 392 struct ieee80211_key *key; 393 int err; 394 395 if (!ieee80211_sdata_running(sdata)) 396 return -ENETDOWN; 397 398 if (pairwise && params->mode == NL80211_KEY_SET_TX) 399 return ieee80211_set_tx(sdata, mac_addr, key_idx); 400 401 /* reject WEP and TKIP keys if WEP failed to initialize */ 402 switch (params->cipher) { 403 case WLAN_CIPHER_SUITE_WEP40: 404 case WLAN_CIPHER_SUITE_TKIP: 405 case WLAN_CIPHER_SUITE_WEP104: 406 if (WARN_ON_ONCE(fips_enabled)) 407 return -EINVAL; 408 break; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 572 NUM_DEFAULT_BEACON_KEYS) 573 key = rcu_dereference(sta->gtk[key_idx]); 574 } else 575 key = rcu_dereference(sdata->keys[key_idx]); 576 577 if (!key) 578 goto out; 579 580 memset(¶ms, 0, sizeof(params)); 581 582 params.cipher = key->conf.cipher; 583 584 switch (key->conf.cipher) { 585 case WLAN_CIPHER_SUITE_TKIP: 586 pn64 = atomic64_read(&key->conf.tx_pn); 587 iv32 = TKIP_PN_TO_IV32(pn64); 588 iv16 = TKIP_PN_TO_IV16(pn64); 589 590 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 591 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 592 drv_get_key_seq(sdata->local, key, &kseq); 593 iv32 = kseq.tkip.iv32; 594 iv16 = kseq.tkip.iv16; 595 } 596 597 seq[0] = iv16 & 0xff; 598 seq[1] = (iv16 >> 8) & 0xff; 599 seq[2] = iv32 & 0xff; 600 seq[3] = (iv32 >> 8) & 0xff; 601 seq[4] = (iv32 >> 16) & 0xff; 602 seq[5] = (iv32 >> 24) & 0xff; 603 params.seq = seq; 604 params.seq_len = 6; 605 break; 606 case WLAN_CIPHER_SUITE_CCMP: 607 case WLAN_CIPHER_SUITE_CCMP_256: 608 case WLAN_CIPHER_SUITE_AES_CMAC: 609 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 610 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 611 offsetof(typeof(kseq), aes_cmac)); 612 fallthrough; 613 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 614 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 615 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 616 offsetof(typeof(kseq), aes_gmac)); 617 fallthrough; 618 case WLAN_CIPHER_SUITE_GCMP: 619 case WLAN_CIPHER_SUITE_GCMP_256: 620 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 621 offsetof(typeof(kseq), gcmp)); 622 623 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 624 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 625 drv_get_key_seq(sdata->local, key, &kseq); 626 memcpy(seq, kseq.ccmp.pn, 6); 627 } else { 628 pn64 = atomic64_read(&key->conf.tx_pn); 629 seq[0] = pn64; 630 seq[1] = pn64 >> 8; 631 seq[2] = pn64 >> 16; 632 seq[3] = pn64 >> 24; 633 seq[4] = pn64 >> 32; 634 seq[5] = pn64 >> 40; 635 } 636 params.seq = seq; 637 params.seq_len = 6; 638 break; 639 default: 640 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 641 break; 642 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 643 break; 644 drv_get_key_seq(sdata->local, key, &kseq); 645 params.seq = kseq.hw.seq; 646 params.seq_len = kseq.hw.seq_len; 647 break; 648 } 649 650 params.key = key->conf.key; 651 params.key_len = key->conf.keylen; 652 653 callback(cookie, ¶ms); 654 err = 0; 655 656 out: 657 rcu_read_unlock(); 658 return err; 659 } 660 661 static int ieee80211_config_default_key(struct wiphy *wiphy, 662 struct net_device *dev, 663 u8 key_idx, bool uni, 664 bool multi) 665 { 666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 667 668 ieee80211_set_default_key(sdata, key_idx, uni, multi); 669 670 return 0; 671 } 672 673 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 674 struct net_device *dev, 675 u8 key_idx) 676 { 677 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 678 679 ieee80211_set_default_mgmt_key(sdata, key_idx); 680 681 return 0; 682 } 683 684 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 685 struct net_device *dev, 686 u8 key_idx) 687 { 688 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 689 690 ieee80211_set_default_beacon_key(sdata, key_idx); 691 692 return 0; 693 } 694 695 void sta_set_rate_info_tx(struct sta_info *sta, 696 const struct ieee80211_tx_rate *rate, 697 struct rate_info *rinfo) 698 { 699 rinfo->flags = 0; 700 if (rate->flags & IEEE80211_TX_RC_MCS) { 701 rinfo->flags |= RATE_INFO_FLAGS_MCS; 702 rinfo->mcs = rate->idx; 703 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 704 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 705 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 706 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 707 } else { 708 struct ieee80211_supported_band *sband; 709 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 710 u16 brate; 711 712 sband = ieee80211_get_sband(sta->sdata); 713 WARN_ON_ONCE(sband && !sband->bitrates); 714 if (sband && sband->bitrates) { 715 brate = sband->bitrates[rate->idx].bitrate; 716 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 717 } 718 } 719 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 720 rinfo->bw = RATE_INFO_BW_40; 721 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 722 rinfo->bw = RATE_INFO_BW_80; 723 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 724 rinfo->bw = RATE_INFO_BW_160; 725 else 726 rinfo->bw = RATE_INFO_BW_20; 727 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 728 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 729 } 730 731 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 732 int idx, u8 *mac, struct station_info *sinfo) 733 { 734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 735 struct ieee80211_local *local = sdata->local; 736 struct sta_info *sta; 737 int ret = -ENOENT; 738 739 mutex_lock(&local->sta_mtx); 740 741 sta = sta_info_get_by_idx(sdata, idx); 742 if (sta) { 743 ret = 0; 744 memcpy(mac, sta->sta.addr, ETH_ALEN); 745 sta_set_sinfo(sta, sinfo, true); 746 } 747 748 mutex_unlock(&local->sta_mtx); 749 750 return ret; 751 } 752 753 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 754 int idx, struct survey_info *survey) 755 { 756 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 757 758 return drv_get_survey(local, idx, survey); 759 } 760 761 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 762 const u8 *mac, struct station_info *sinfo) 763 { 764 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 765 struct ieee80211_local *local = sdata->local; 766 struct sta_info *sta; 767 int ret = -ENOENT; 768 769 mutex_lock(&local->sta_mtx); 770 771 sta = sta_info_get_bss(sdata, mac); 772 if (sta) { 773 ret = 0; 774 sta_set_sinfo(sta, sinfo, true); 775 } 776 777 mutex_unlock(&local->sta_mtx); 778 779 return ret; 780 } 781 782 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 783 struct cfg80211_chan_def *chandef) 784 { 785 struct ieee80211_local *local = wiphy_priv(wiphy); 786 struct ieee80211_sub_if_data *sdata; 787 int ret = 0; 788 789 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 790 return 0; 791 792 mutex_lock(&local->mtx); 793 if (local->use_chanctx) { 794 sdata = rtnl_dereference(local->monitor_sdata); 795 if (sdata) { 796 ieee80211_vif_release_channel(sdata); 797 ret = ieee80211_vif_use_channel(sdata, chandef, 798 IEEE80211_CHANCTX_EXCLUSIVE); 799 } 800 } else if (local->open_count == local->monitors) { 801 local->_oper_chandef = *chandef; 802 ieee80211_hw_config(local, 0); 803 } 804 805 if (ret == 0) 806 local->monitor_chandef = *chandef; 807 mutex_unlock(&local->mtx); 808 809 return ret; 810 } 811 812 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 813 const u8 *resp, size_t resp_len, 814 const struct ieee80211_csa_settings *csa) 815 { 816 struct probe_resp *new, *old; 817 818 if (!resp || !resp_len) 819 return 1; 820 821 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 822 823 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 824 if (!new) 825 return -ENOMEM; 826 827 new->len = resp_len; 828 memcpy(new->data, resp, resp_len); 829 830 if (csa) 831 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 832 csa->n_counter_offsets_presp * 833 sizeof(new->cntdwn_counter_offsets[0])); 834 835 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 836 if (old) 837 kfree_rcu(old, rcu_head); 838 839 return 0; 840 } 841 842 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 843 struct cfg80211_fils_discovery *params) 844 { 845 struct fils_discovery_data *new, *old = NULL; 846 struct ieee80211_fils_discovery *fd; 847 848 if (!params->tmpl || !params->tmpl_len) 849 return -EINVAL; 850 851 fd = &sdata->vif.bss_conf.fils_discovery; 852 fd->min_interval = params->min_interval; 853 fd->max_interval = params->max_interval; 854 855 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata); 856 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 857 if (!new) 858 return -ENOMEM; 859 new->len = params->tmpl_len; 860 memcpy(new->data, params->tmpl, params->tmpl_len); 861 rcu_assign_pointer(sdata->u.ap.fils_discovery, new); 862 863 if (old) 864 kfree_rcu(old, rcu_head); 865 866 return 0; 867 } 868 869 static int 870 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 871 struct cfg80211_unsol_bcast_probe_resp *params) 872 { 873 struct unsol_bcast_probe_resp_data *new, *old = NULL; 874 875 if (!params->tmpl || !params->tmpl_len) 876 return -EINVAL; 877 878 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); 879 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 880 if (!new) 881 return -ENOMEM; 882 new->len = params->tmpl_len; 883 memcpy(new->data, params->tmpl, params->tmpl_len); 884 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); 885 886 if (old) 887 kfree_rcu(old, rcu_head); 888 889 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = 890 params->interval; 891 892 return 0; 893 } 894 895 static int ieee80211_set_ftm_responder_params( 896 struct ieee80211_sub_if_data *sdata, 897 const u8 *lci, size_t lci_len, 898 const u8 *civicloc, size_t civicloc_len) 899 { 900 struct ieee80211_ftm_responder_params *new, *old; 901 struct ieee80211_bss_conf *bss_conf; 902 u8 *pos; 903 int len; 904 905 if (!lci_len && !civicloc_len) 906 return 0; 907 908 bss_conf = &sdata->vif.bss_conf; 909 old = bss_conf->ftmr_params; 910 len = lci_len + civicloc_len; 911 912 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 913 if (!new) 914 return -ENOMEM; 915 916 pos = (u8 *)(new + 1); 917 if (lci_len) { 918 new->lci_len = lci_len; 919 new->lci = pos; 920 memcpy(pos, lci, lci_len); 921 pos += lci_len; 922 } 923 924 if (civicloc_len) { 925 new->civicloc_len = civicloc_len; 926 new->civicloc = pos; 927 memcpy(pos, civicloc, civicloc_len); 928 pos += civicloc_len; 929 } 930 931 bss_conf->ftmr_params = new; 932 kfree(old); 933 934 return 0; 935 } 936 937 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 938 struct cfg80211_beacon_data *params, 939 const struct ieee80211_csa_settings *csa) 940 { 941 struct beacon_data *new, *old; 942 int new_head_len, new_tail_len; 943 int size, err; 944 u32 changed = BSS_CHANGED_BEACON; 945 946 old = sdata_dereference(sdata->u.ap.beacon, sdata); 947 948 949 /* Need to have a beacon head if we don't have one yet */ 950 if (!params->head && !old) 951 return -EINVAL; 952 953 /* new or old head? */ 954 if (params->head) 955 new_head_len = params->head_len; 956 else 957 new_head_len = old->head_len; 958 959 /* new or old tail? */ 960 if (params->tail || !old) 961 /* params->tail_len will be zero for !params->tail */ 962 new_tail_len = params->tail_len; 963 else 964 new_tail_len = old->tail_len; 965 966 size = sizeof(*new) + new_head_len + new_tail_len; 967 968 new = kzalloc(size, GFP_KERNEL); 969 if (!new) 970 return -ENOMEM; 971 972 /* start filling the new info now */ 973 974 /* 975 * pointers go into the block we allocated, 976 * memory is | beacon_data | head | tail | 977 */ 978 new->head = ((u8 *) new) + sizeof(*new); 979 new->tail = new->head + new_head_len; 980 new->head_len = new_head_len; 981 new->tail_len = new_tail_len; 982 983 if (csa) { 984 new->cntdwn_current_counter = csa->count; 985 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 986 csa->n_counter_offsets_beacon * 987 sizeof(new->cntdwn_counter_offsets[0])); 988 } 989 990 /* copy in head */ 991 if (params->head) 992 memcpy(new->head, params->head, new_head_len); 993 else 994 memcpy(new->head, old->head, new_head_len); 995 996 /* copy in optional tail */ 997 if (params->tail) 998 memcpy(new->tail, params->tail, new_tail_len); 999 else 1000 if (old) 1001 memcpy(new->tail, old->tail, new_tail_len); 1002 1003 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1004 params->probe_resp_len, csa); 1005 if (err < 0) { 1006 kfree(new); 1007 return err; 1008 } 1009 if (err == 0) 1010 changed |= BSS_CHANGED_AP_PROBE_RESP; 1011 1012 if (params->ftm_responder != -1) { 1013 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 1014 err = ieee80211_set_ftm_responder_params(sdata, 1015 params->lci, 1016 params->lci_len, 1017 params->civicloc, 1018 params->civicloc_len); 1019 1020 if (err < 0) { 1021 kfree(new); 1022 return err; 1023 } 1024 1025 changed |= BSS_CHANGED_FTM_RESPONDER; 1026 } 1027 1028 rcu_assign_pointer(sdata->u.ap.beacon, new); 1029 1030 if (old) 1031 kfree_rcu(old, rcu_head); 1032 1033 return changed; 1034 } 1035 1036 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1037 struct cfg80211_ap_settings *params) 1038 { 1039 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1040 struct ieee80211_local *local = sdata->local; 1041 struct beacon_data *old; 1042 struct ieee80211_sub_if_data *vlan; 1043 u32 changed = BSS_CHANGED_BEACON_INT | 1044 BSS_CHANGED_BEACON_ENABLED | 1045 BSS_CHANGED_BEACON | 1046 BSS_CHANGED_SSID | 1047 BSS_CHANGED_P2P_PS | 1048 BSS_CHANGED_TXPOWER | 1049 BSS_CHANGED_TWT; 1050 int i, err; 1051 int prev_beacon_int; 1052 1053 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1054 if (old) 1055 return -EALREADY; 1056 1057 if (params->smps_mode != NL80211_SMPS_OFF) 1058 return -ENOTSUPP; 1059 1060 sdata->smps_mode = IEEE80211_SMPS_OFF; 1061 1062 sdata->needed_rx_chains = sdata->local->rx_chains; 1063 1064 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1065 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1066 1067 if (params->he_cap && params->he_oper) { 1068 sdata->vif.bss_conf.he_support = true; 1069 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1070 le32_get_bits(params->he_oper->he_oper_params, 1071 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1072 sdata->vif.bss_conf.frame_time_rts_th = 1073 le32_get_bits(params->he_oper->he_oper_params, 1074 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1075 changed |= BSS_CHANGED_HE_OBSS_PD; 1076 1077 if (params->he_bss_color.enabled) 1078 changed |= BSS_CHANGED_HE_BSS_COLOR; 1079 } 1080 1081 mutex_lock(&local->mtx); 1082 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1083 IEEE80211_CHANCTX_SHARED); 1084 if (!err) 1085 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1086 mutex_unlock(&local->mtx); 1087 if (err) { 1088 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1089 return err; 1090 } 1091 1092 /* 1093 * Apply control port protocol, this allows us to 1094 * not encrypt dynamic WEP control frames. 1095 */ 1096 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1097 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1098 sdata->control_port_over_nl80211 = 1099 params->crypto.control_port_over_nl80211; 1100 sdata->control_port_no_preauth = 1101 params->crypto.control_port_no_preauth; 1102 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1103 ¶ms->crypto, 1104 sdata->vif.type); 1105 1106 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1107 vlan->control_port_protocol = 1108 params->crypto.control_port_ethertype; 1109 vlan->control_port_no_encrypt = 1110 params->crypto.control_port_no_encrypt; 1111 vlan->control_port_over_nl80211 = 1112 params->crypto.control_port_over_nl80211; 1113 vlan->control_port_no_preauth = 1114 params->crypto.control_port_no_preauth; 1115 vlan->encrypt_headroom = 1116 ieee80211_cs_headroom(sdata->local, 1117 ¶ms->crypto, 1118 vlan->vif.type); 1119 } 1120 1121 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1122 sdata->vif.bss_conf.enable_beacon = true; 1123 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1124 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1125 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd; 1126 sdata->vif.bss_conf.he_bss_color = params->he_bss_color; 1127 sdata->vif.bss_conf.s1g = params->chandef.chan->band == 1128 NL80211_BAND_S1GHZ; 1129 1130 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1131 if (params->ssid_len) 1132 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1133 params->ssid_len); 1134 sdata->vif.bss_conf.hidden_ssid = 1135 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1136 1137 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1138 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1139 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1140 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1141 if (params->p2p_opp_ps) 1142 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1143 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1144 1145 sdata->beacon_rate_set = false; 1146 if (wiphy_ext_feature_isset(local->hw.wiphy, 1147 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1148 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1149 sdata->beacon_rateidx_mask[i] = 1150 params->beacon_rate.control[i].legacy; 1151 if (sdata->beacon_rateidx_mask[i]) 1152 sdata->beacon_rate_set = true; 1153 } 1154 } 1155 1156 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1157 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate; 1158 1159 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1160 if (err < 0) 1161 goto error; 1162 changed |= err; 1163 1164 if (params->fils_discovery.max_interval) { 1165 err = ieee80211_set_fils_discovery(sdata, 1166 ¶ms->fils_discovery); 1167 if (err < 0) 1168 goto error; 1169 changed |= BSS_CHANGED_FILS_DISCOVERY; 1170 } 1171 1172 if (params->unsol_bcast_probe_resp.interval) { 1173 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1174 ¶ms->unsol_bcast_probe_resp); 1175 if (err < 0) 1176 goto error; 1177 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1178 } 1179 1180 err = drv_start_ap(sdata->local, sdata); 1181 if (err) { 1182 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1183 1184 if (old) 1185 kfree_rcu(old, rcu_head); 1186 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1187 goto error; 1188 } 1189 1190 ieee80211_recalc_dtim(local, sdata); 1191 ieee80211_bss_info_change_notify(sdata, changed); 1192 1193 netif_carrier_on(dev); 1194 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1195 netif_carrier_on(vlan->dev); 1196 1197 return 0; 1198 1199 error: 1200 ieee80211_vif_release_channel(sdata); 1201 return err; 1202 } 1203 1204 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1205 struct cfg80211_beacon_data *params) 1206 { 1207 struct ieee80211_sub_if_data *sdata; 1208 struct beacon_data *old; 1209 int err; 1210 1211 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1212 sdata_assert_lock(sdata); 1213 1214 /* don't allow changing the beacon while CSA is in place - offset 1215 * of channel switch counter may change 1216 */ 1217 if (sdata->vif.csa_active) 1218 return -EBUSY; 1219 1220 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1221 if (!old) 1222 return -ENOENT; 1223 1224 err = ieee80211_assign_beacon(sdata, params, NULL); 1225 if (err < 0) 1226 return err; 1227 ieee80211_bss_info_change_notify(sdata, err); 1228 return 0; 1229 } 1230 1231 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1232 { 1233 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1234 struct ieee80211_sub_if_data *vlan; 1235 struct ieee80211_local *local = sdata->local; 1236 struct beacon_data *old_beacon; 1237 struct probe_resp *old_probe_resp; 1238 struct fils_discovery_data *old_fils_discovery; 1239 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1240 struct cfg80211_chan_def chandef; 1241 1242 sdata_assert_lock(sdata); 1243 1244 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1245 if (!old_beacon) 1246 return -ENOENT; 1247 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1248 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, 1249 sdata); 1250 old_unsol_bcast_probe_resp = 1251 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, 1252 sdata); 1253 1254 /* abort any running channel switch */ 1255 mutex_lock(&local->mtx); 1256 sdata->vif.csa_active = false; 1257 if (sdata->csa_block_tx) { 1258 ieee80211_wake_vif_queues(local, sdata, 1259 IEEE80211_QUEUE_STOP_REASON_CSA); 1260 sdata->csa_block_tx = false; 1261 } 1262 1263 mutex_unlock(&local->mtx); 1264 1265 kfree(sdata->u.ap.next_beacon); 1266 sdata->u.ap.next_beacon = NULL; 1267 1268 /* turn off carrier for this interface and dependent VLANs */ 1269 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1270 netif_carrier_off(vlan->dev); 1271 netif_carrier_off(dev); 1272 1273 /* remove beacon and probe response */ 1274 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1275 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1276 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); 1277 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); 1278 kfree_rcu(old_beacon, rcu_head); 1279 if (old_probe_resp) 1280 kfree_rcu(old_probe_resp, rcu_head); 1281 if (old_fils_discovery) 1282 kfree_rcu(old_fils_discovery, rcu_head); 1283 if (old_unsol_bcast_probe_resp) 1284 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1285 1286 kfree(sdata->vif.bss_conf.ftmr_params); 1287 sdata->vif.bss_conf.ftmr_params = NULL; 1288 1289 __sta_info_flush(sdata, true); 1290 ieee80211_free_keys(sdata, true); 1291 1292 sdata->vif.bss_conf.enable_beacon = false; 1293 sdata->beacon_rate_set = false; 1294 sdata->vif.bss_conf.ssid_len = 0; 1295 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1296 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1297 1298 if (sdata->wdev.cac_started) { 1299 chandef = sdata->vif.bss_conf.chandef; 1300 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1301 cfg80211_cac_event(sdata->dev, &chandef, 1302 NL80211_RADAR_CAC_ABORTED, 1303 GFP_KERNEL); 1304 } 1305 1306 drv_stop_ap(sdata->local, sdata); 1307 1308 /* free all potentially still buffered bcast frames */ 1309 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1310 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1311 1312 mutex_lock(&local->mtx); 1313 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1314 ieee80211_vif_release_channel(sdata); 1315 mutex_unlock(&local->mtx); 1316 1317 return 0; 1318 } 1319 1320 static int sta_apply_auth_flags(struct ieee80211_local *local, 1321 struct sta_info *sta, 1322 u32 mask, u32 set) 1323 { 1324 int ret; 1325 1326 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1327 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1328 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1329 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1330 if (ret) 1331 return ret; 1332 } 1333 1334 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1335 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1336 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1337 /* 1338 * When peer becomes associated, init rate control as 1339 * well. Some drivers require rate control initialized 1340 * before drv_sta_state() is called. 1341 */ 1342 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1343 rate_control_rate_init(sta); 1344 1345 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1346 if (ret) 1347 return ret; 1348 } 1349 1350 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1351 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1352 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1353 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1354 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1355 else 1356 ret = 0; 1357 if (ret) 1358 return ret; 1359 } 1360 1361 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1362 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1363 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1364 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1365 if (ret) 1366 return ret; 1367 } 1368 1369 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1370 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1371 test_sta_flag(sta, WLAN_STA_AUTH)) { 1372 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1373 if (ret) 1374 return ret; 1375 } 1376 1377 return 0; 1378 } 1379 1380 static void sta_apply_mesh_params(struct ieee80211_local *local, 1381 struct sta_info *sta, 1382 struct station_parameters *params) 1383 { 1384 #ifdef CONFIG_MAC80211_MESH 1385 struct ieee80211_sub_if_data *sdata = sta->sdata; 1386 u32 changed = 0; 1387 1388 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1389 switch (params->plink_state) { 1390 case NL80211_PLINK_ESTAB: 1391 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1392 changed = mesh_plink_inc_estab_count(sdata); 1393 sta->mesh->plink_state = params->plink_state; 1394 sta->mesh->aid = params->peer_aid; 1395 1396 ieee80211_mps_sta_status_update(sta); 1397 changed |= ieee80211_mps_set_sta_local_pm(sta, 1398 sdata->u.mesh.mshcfg.power_mode); 1399 1400 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1401 /* init at low value */ 1402 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1403 1404 break; 1405 case NL80211_PLINK_LISTEN: 1406 case NL80211_PLINK_BLOCKED: 1407 case NL80211_PLINK_OPN_SNT: 1408 case NL80211_PLINK_OPN_RCVD: 1409 case NL80211_PLINK_CNF_RCVD: 1410 case NL80211_PLINK_HOLDING: 1411 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1412 changed = mesh_plink_dec_estab_count(sdata); 1413 sta->mesh->plink_state = params->plink_state; 1414 1415 ieee80211_mps_sta_status_update(sta); 1416 changed |= ieee80211_mps_set_sta_local_pm(sta, 1417 NL80211_MESH_POWER_UNKNOWN); 1418 break; 1419 default: 1420 /* nothing */ 1421 break; 1422 } 1423 } 1424 1425 switch (params->plink_action) { 1426 case NL80211_PLINK_ACTION_NO_ACTION: 1427 /* nothing */ 1428 break; 1429 case NL80211_PLINK_ACTION_OPEN: 1430 changed |= mesh_plink_open(sta); 1431 break; 1432 case NL80211_PLINK_ACTION_BLOCK: 1433 changed |= mesh_plink_block(sta); 1434 break; 1435 } 1436 1437 if (params->local_pm) 1438 changed |= ieee80211_mps_set_sta_local_pm(sta, 1439 params->local_pm); 1440 1441 ieee80211_mbss_info_change_notify(sdata, changed); 1442 #endif 1443 } 1444 1445 static int sta_apply_parameters(struct ieee80211_local *local, 1446 struct sta_info *sta, 1447 struct station_parameters *params) 1448 { 1449 int ret = 0; 1450 struct ieee80211_supported_band *sband; 1451 struct ieee80211_sub_if_data *sdata = sta->sdata; 1452 u32 mask, set; 1453 1454 sband = ieee80211_get_sband(sdata); 1455 if (!sband) 1456 return -EINVAL; 1457 1458 mask = params->sta_flags_mask; 1459 set = params->sta_flags_set; 1460 1461 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1462 /* 1463 * In mesh mode, ASSOCIATED isn't part of the nl80211 1464 * API but must follow AUTHENTICATED for driver state. 1465 */ 1466 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1467 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1468 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1469 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1470 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1471 /* 1472 * TDLS -- everything follows authorized, but 1473 * only becoming authorized is possible, not 1474 * going back 1475 */ 1476 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1477 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1478 BIT(NL80211_STA_FLAG_ASSOCIATED); 1479 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1480 BIT(NL80211_STA_FLAG_ASSOCIATED); 1481 } 1482 } 1483 1484 if (mask & BIT(NL80211_STA_FLAG_WME) && 1485 local->hw.queues >= IEEE80211_NUM_ACS) 1486 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1487 1488 /* auth flags will be set later for TDLS, 1489 * and for unassociated stations that move to assocaited */ 1490 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1491 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1492 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1493 ret = sta_apply_auth_flags(local, sta, mask, set); 1494 if (ret) 1495 return ret; 1496 } 1497 1498 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1499 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1500 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1501 else 1502 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1503 } 1504 1505 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1506 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1507 if (set & BIT(NL80211_STA_FLAG_MFP)) 1508 set_sta_flag(sta, WLAN_STA_MFP); 1509 else 1510 clear_sta_flag(sta, WLAN_STA_MFP); 1511 } 1512 1513 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1514 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1515 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1516 else 1517 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1518 } 1519 1520 /* mark TDLS channel switch support, if the AP allows it */ 1521 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1522 !sdata->u.mgd.tdls_chan_switch_prohibited && 1523 params->ext_capab_len >= 4 && 1524 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1525 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1526 1527 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1528 !sdata->u.mgd.tdls_wider_bw_prohibited && 1529 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1530 params->ext_capab_len >= 8 && 1531 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1532 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1533 1534 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1535 sta->sta.uapsd_queues = params->uapsd_queues; 1536 sta->sta.max_sp = params->max_sp; 1537 } 1538 1539 /* The sender might not have sent the last bit, consider it to be 0 */ 1540 if (params->ext_capab_len >= 8) { 1541 u8 val = (params->ext_capab[7] & 1542 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1543 1544 /* we did get all the bits, take the MSB as well */ 1545 if (params->ext_capab_len >= 9) { 1546 u8 val_msb = params->ext_capab[8] & 1547 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1548 val_msb <<= 1; 1549 val |= val_msb; 1550 } 1551 1552 switch (val) { 1553 case 1: 1554 sta->sta.max_amsdu_subframes = 32; 1555 break; 1556 case 2: 1557 sta->sta.max_amsdu_subframes = 16; 1558 break; 1559 case 3: 1560 sta->sta.max_amsdu_subframes = 8; 1561 break; 1562 default: 1563 sta->sta.max_amsdu_subframes = 0; 1564 } 1565 } 1566 1567 /* 1568 * cfg80211 validates this (1-2007) and allows setting the AID 1569 * only when creating a new station entry 1570 */ 1571 if (params->aid) 1572 sta->sta.aid = params->aid; 1573 1574 /* 1575 * Some of the following updates would be racy if called on an 1576 * existing station, via ieee80211_change_station(). However, 1577 * all such changes are rejected by cfg80211 except for updates 1578 * changing the supported rates on an existing but not yet used 1579 * TDLS peer. 1580 */ 1581 1582 if (params->listen_interval >= 0) 1583 sta->listen_interval = params->listen_interval; 1584 1585 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1586 sta->sta.txpwr.type = params->txpwr.type; 1587 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1588 sta->sta.txpwr.power = params->txpwr.power; 1589 ret = drv_sta_set_txpwr(local, sdata, sta); 1590 if (ret) 1591 return ret; 1592 } 1593 1594 if (params->supported_rates && params->supported_rates_len) { 1595 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1596 sband, params->supported_rates, 1597 params->supported_rates_len, 1598 &sta->sta.supp_rates[sband->band]); 1599 } 1600 1601 if (params->ht_capa) 1602 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1603 params->ht_capa, sta); 1604 1605 /* VHT can override some HT caps such as the A-MSDU max length */ 1606 if (params->vht_capa) 1607 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1608 params->vht_capa, sta); 1609 1610 if (params->he_capa) 1611 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1612 (void *)params->he_capa, 1613 params->he_capa_len, 1614 (void *)params->he_6ghz_capa, 1615 sta); 1616 1617 if (params->opmode_notif_used) { 1618 /* returned value is only needed for rc update, but the 1619 * rc isn't initialized here yet, so ignore it 1620 */ 1621 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1622 sband->band); 1623 } 1624 1625 if (params->support_p2p_ps >= 0) 1626 sta->sta.support_p2p_ps = params->support_p2p_ps; 1627 1628 if (ieee80211_vif_is_mesh(&sdata->vif)) 1629 sta_apply_mesh_params(local, sta, params); 1630 1631 if (params->airtime_weight) 1632 sta->airtime_weight = params->airtime_weight; 1633 1634 /* set the STA state after all sta info from usermode has been set */ 1635 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1636 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1637 ret = sta_apply_auth_flags(local, sta, mask, set); 1638 if (ret) 1639 return ret; 1640 } 1641 1642 return 0; 1643 } 1644 1645 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1646 const u8 *mac, 1647 struct station_parameters *params) 1648 { 1649 struct ieee80211_local *local = wiphy_priv(wiphy); 1650 struct sta_info *sta; 1651 struct ieee80211_sub_if_data *sdata; 1652 int err; 1653 1654 if (params->vlan) { 1655 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1656 1657 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1658 sdata->vif.type != NL80211_IFTYPE_AP) 1659 return -EINVAL; 1660 } else 1661 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1662 1663 if (ether_addr_equal(mac, sdata->vif.addr)) 1664 return -EINVAL; 1665 1666 if (!is_valid_ether_addr(mac)) 1667 return -EINVAL; 1668 1669 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1670 sdata->vif.type == NL80211_IFTYPE_STATION && 1671 !sdata->u.mgd.associated) 1672 return -EINVAL; 1673 1674 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1675 if (!sta) 1676 return -ENOMEM; 1677 1678 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1679 sta->sta.tdls = true; 1680 1681 err = sta_apply_parameters(local, sta, params); 1682 if (err) { 1683 sta_info_free(local, sta); 1684 return err; 1685 } 1686 1687 /* 1688 * for TDLS and for unassociated station, rate control should be 1689 * initialized only when rates are known and station is marked 1690 * authorized/associated 1691 */ 1692 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1693 test_sta_flag(sta, WLAN_STA_ASSOC)) 1694 rate_control_rate_init(sta); 1695 1696 err = sta_info_insert_rcu(sta); 1697 if (err) { 1698 rcu_read_unlock(); 1699 return err; 1700 } 1701 1702 rcu_read_unlock(); 1703 1704 return 0; 1705 } 1706 1707 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1708 struct station_del_parameters *params) 1709 { 1710 struct ieee80211_sub_if_data *sdata; 1711 1712 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1713 1714 if (params->mac) 1715 return sta_info_destroy_addr_bss(sdata, params->mac); 1716 1717 sta_info_flush(sdata); 1718 return 0; 1719 } 1720 1721 static int ieee80211_change_station(struct wiphy *wiphy, 1722 struct net_device *dev, const u8 *mac, 1723 struct station_parameters *params) 1724 { 1725 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1726 struct ieee80211_local *local = wiphy_priv(wiphy); 1727 struct sta_info *sta; 1728 struct ieee80211_sub_if_data *vlansdata; 1729 enum cfg80211_station_type statype; 1730 int err; 1731 1732 mutex_lock(&local->sta_mtx); 1733 1734 sta = sta_info_get_bss(sdata, mac); 1735 if (!sta) { 1736 err = -ENOENT; 1737 goto out_err; 1738 } 1739 1740 switch (sdata->vif.type) { 1741 case NL80211_IFTYPE_MESH_POINT: 1742 if (sdata->u.mesh.user_mpm) 1743 statype = CFG80211_STA_MESH_PEER_USER; 1744 else 1745 statype = CFG80211_STA_MESH_PEER_KERNEL; 1746 break; 1747 case NL80211_IFTYPE_ADHOC: 1748 statype = CFG80211_STA_IBSS; 1749 break; 1750 case NL80211_IFTYPE_STATION: 1751 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1752 statype = CFG80211_STA_AP_STA; 1753 break; 1754 } 1755 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1756 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1757 else 1758 statype = CFG80211_STA_TDLS_PEER_SETUP; 1759 break; 1760 case NL80211_IFTYPE_AP: 1761 case NL80211_IFTYPE_AP_VLAN: 1762 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1763 statype = CFG80211_STA_AP_CLIENT; 1764 else 1765 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1766 break; 1767 default: 1768 err = -EOPNOTSUPP; 1769 goto out_err; 1770 } 1771 1772 err = cfg80211_check_station_change(wiphy, params, statype); 1773 if (err) 1774 goto out_err; 1775 1776 if (params->vlan && params->vlan != sta->sdata->dev) { 1777 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1778 1779 if (params->vlan->ieee80211_ptr->use_4addr) { 1780 if (vlansdata->u.vlan.sta) { 1781 err = -EBUSY; 1782 goto out_err; 1783 } 1784 1785 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1786 __ieee80211_check_fast_rx_iface(vlansdata); 1787 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1788 } 1789 1790 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1791 sta->sdata->u.vlan.sta) 1792 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1793 1794 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1795 ieee80211_vif_dec_num_mcast(sta->sdata); 1796 1797 sta->sdata = vlansdata; 1798 ieee80211_check_fast_xmit(sta); 1799 1800 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1801 ieee80211_vif_inc_num_mcast(sta->sdata); 1802 cfg80211_send_layer2_update(sta->sdata->dev, 1803 sta->sta.addr); 1804 } 1805 } 1806 1807 err = sta_apply_parameters(local, sta, params); 1808 if (err) 1809 goto out_err; 1810 1811 mutex_unlock(&local->sta_mtx); 1812 1813 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1814 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1815 ieee80211_recalc_ps(local); 1816 ieee80211_recalc_ps_vif(sdata); 1817 } 1818 1819 return 0; 1820 out_err: 1821 mutex_unlock(&local->sta_mtx); 1822 return err; 1823 } 1824 1825 #ifdef CONFIG_MAC80211_MESH 1826 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1827 const u8 *dst, const u8 *next_hop) 1828 { 1829 struct ieee80211_sub_if_data *sdata; 1830 struct mesh_path *mpath; 1831 struct sta_info *sta; 1832 1833 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1834 1835 rcu_read_lock(); 1836 sta = sta_info_get(sdata, next_hop); 1837 if (!sta) { 1838 rcu_read_unlock(); 1839 return -ENOENT; 1840 } 1841 1842 mpath = mesh_path_add(sdata, dst); 1843 if (IS_ERR(mpath)) { 1844 rcu_read_unlock(); 1845 return PTR_ERR(mpath); 1846 } 1847 1848 mesh_path_fix_nexthop(mpath, sta); 1849 1850 rcu_read_unlock(); 1851 return 0; 1852 } 1853 1854 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1855 const u8 *dst) 1856 { 1857 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1858 1859 if (dst) 1860 return mesh_path_del(sdata, dst); 1861 1862 mesh_path_flush_by_iface(sdata); 1863 return 0; 1864 } 1865 1866 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1867 const u8 *dst, const u8 *next_hop) 1868 { 1869 struct ieee80211_sub_if_data *sdata; 1870 struct mesh_path *mpath; 1871 struct sta_info *sta; 1872 1873 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1874 1875 rcu_read_lock(); 1876 1877 sta = sta_info_get(sdata, next_hop); 1878 if (!sta) { 1879 rcu_read_unlock(); 1880 return -ENOENT; 1881 } 1882 1883 mpath = mesh_path_lookup(sdata, dst); 1884 if (!mpath) { 1885 rcu_read_unlock(); 1886 return -ENOENT; 1887 } 1888 1889 mesh_path_fix_nexthop(mpath, sta); 1890 1891 rcu_read_unlock(); 1892 return 0; 1893 } 1894 1895 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1896 struct mpath_info *pinfo) 1897 { 1898 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1899 1900 if (next_hop_sta) 1901 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1902 else 1903 eth_zero_addr(next_hop); 1904 1905 memset(pinfo, 0, sizeof(*pinfo)); 1906 1907 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1908 1909 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1910 MPATH_INFO_SN | 1911 MPATH_INFO_METRIC | 1912 MPATH_INFO_EXPTIME | 1913 MPATH_INFO_DISCOVERY_TIMEOUT | 1914 MPATH_INFO_DISCOVERY_RETRIES | 1915 MPATH_INFO_FLAGS | 1916 MPATH_INFO_HOP_COUNT | 1917 MPATH_INFO_PATH_CHANGE; 1918 1919 pinfo->frame_qlen = mpath->frame_queue.qlen; 1920 pinfo->sn = mpath->sn; 1921 pinfo->metric = mpath->metric; 1922 if (time_before(jiffies, mpath->exp_time)) 1923 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1924 pinfo->discovery_timeout = 1925 jiffies_to_msecs(mpath->discovery_timeout); 1926 pinfo->discovery_retries = mpath->discovery_retries; 1927 if (mpath->flags & MESH_PATH_ACTIVE) 1928 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1929 if (mpath->flags & MESH_PATH_RESOLVING) 1930 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1931 if (mpath->flags & MESH_PATH_SN_VALID) 1932 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1933 if (mpath->flags & MESH_PATH_FIXED) 1934 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1935 if (mpath->flags & MESH_PATH_RESOLVED) 1936 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1937 pinfo->hop_count = mpath->hop_count; 1938 pinfo->path_change_count = mpath->path_change_count; 1939 } 1940 1941 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1942 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1943 1944 { 1945 struct ieee80211_sub_if_data *sdata; 1946 struct mesh_path *mpath; 1947 1948 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1949 1950 rcu_read_lock(); 1951 mpath = mesh_path_lookup(sdata, dst); 1952 if (!mpath) { 1953 rcu_read_unlock(); 1954 return -ENOENT; 1955 } 1956 memcpy(dst, mpath->dst, ETH_ALEN); 1957 mpath_set_pinfo(mpath, next_hop, pinfo); 1958 rcu_read_unlock(); 1959 return 0; 1960 } 1961 1962 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1963 int idx, u8 *dst, u8 *next_hop, 1964 struct mpath_info *pinfo) 1965 { 1966 struct ieee80211_sub_if_data *sdata; 1967 struct mesh_path *mpath; 1968 1969 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1970 1971 rcu_read_lock(); 1972 mpath = mesh_path_lookup_by_idx(sdata, idx); 1973 if (!mpath) { 1974 rcu_read_unlock(); 1975 return -ENOENT; 1976 } 1977 memcpy(dst, mpath->dst, ETH_ALEN); 1978 mpath_set_pinfo(mpath, next_hop, pinfo); 1979 rcu_read_unlock(); 1980 return 0; 1981 } 1982 1983 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1984 struct mpath_info *pinfo) 1985 { 1986 memset(pinfo, 0, sizeof(*pinfo)); 1987 memcpy(mpp, mpath->mpp, ETH_ALEN); 1988 1989 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1990 } 1991 1992 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1993 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1994 1995 { 1996 struct ieee80211_sub_if_data *sdata; 1997 struct mesh_path *mpath; 1998 1999 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2000 2001 rcu_read_lock(); 2002 mpath = mpp_path_lookup(sdata, dst); 2003 if (!mpath) { 2004 rcu_read_unlock(); 2005 return -ENOENT; 2006 } 2007 memcpy(dst, mpath->dst, ETH_ALEN); 2008 mpp_set_pinfo(mpath, mpp, pinfo); 2009 rcu_read_unlock(); 2010 return 0; 2011 } 2012 2013 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2014 int idx, u8 *dst, u8 *mpp, 2015 struct mpath_info *pinfo) 2016 { 2017 struct ieee80211_sub_if_data *sdata; 2018 struct mesh_path *mpath; 2019 2020 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2021 2022 rcu_read_lock(); 2023 mpath = mpp_path_lookup_by_idx(sdata, idx); 2024 if (!mpath) { 2025 rcu_read_unlock(); 2026 return -ENOENT; 2027 } 2028 memcpy(dst, mpath->dst, ETH_ALEN); 2029 mpp_set_pinfo(mpath, mpp, pinfo); 2030 rcu_read_unlock(); 2031 return 0; 2032 } 2033 2034 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2035 struct net_device *dev, 2036 struct mesh_config *conf) 2037 { 2038 struct ieee80211_sub_if_data *sdata; 2039 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2040 2041 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2042 return 0; 2043 } 2044 2045 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2046 { 2047 return (mask >> (parm-1)) & 0x1; 2048 } 2049 2050 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2051 const struct mesh_setup *setup) 2052 { 2053 u8 *new_ie; 2054 const u8 *old_ie; 2055 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2056 struct ieee80211_sub_if_data, u.mesh); 2057 int i; 2058 2059 /* allocate information elements */ 2060 new_ie = NULL; 2061 old_ie = ifmsh->ie; 2062 2063 if (setup->ie_len) { 2064 new_ie = kmemdup(setup->ie, setup->ie_len, 2065 GFP_KERNEL); 2066 if (!new_ie) 2067 return -ENOMEM; 2068 } 2069 ifmsh->ie_len = setup->ie_len; 2070 ifmsh->ie = new_ie; 2071 kfree(old_ie); 2072 2073 /* now copy the rest of the setup parameters */ 2074 ifmsh->mesh_id_len = setup->mesh_id_len; 2075 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2076 ifmsh->mesh_sp_id = setup->sync_method; 2077 ifmsh->mesh_pp_id = setup->path_sel_proto; 2078 ifmsh->mesh_pm_id = setup->path_metric; 2079 ifmsh->user_mpm = setup->user_mpm; 2080 ifmsh->mesh_auth_id = setup->auth_id; 2081 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2082 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2083 if (setup->is_authenticated) 2084 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2085 if (setup->is_secure) 2086 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2087 2088 /* mcast rate setting in Mesh Node */ 2089 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2090 sizeof(setup->mcast_rate)); 2091 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2092 2093 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2094 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2095 2096 sdata->beacon_rate_set = false; 2097 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2098 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2099 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2100 sdata->beacon_rateidx_mask[i] = 2101 setup->beacon_rate.control[i].legacy; 2102 if (sdata->beacon_rateidx_mask[i]) 2103 sdata->beacon_rate_set = true; 2104 } 2105 } 2106 2107 return 0; 2108 } 2109 2110 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2111 struct net_device *dev, u32 mask, 2112 const struct mesh_config *nconf) 2113 { 2114 struct mesh_config *conf; 2115 struct ieee80211_sub_if_data *sdata; 2116 struct ieee80211_if_mesh *ifmsh; 2117 2118 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2119 ifmsh = &sdata->u.mesh; 2120 2121 /* Set the config options which we are interested in setting */ 2122 conf = &(sdata->u.mesh.mshcfg); 2123 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2124 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2125 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2126 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2127 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2128 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2129 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2130 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2131 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2132 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2133 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2134 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2135 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2136 conf->element_ttl = nconf->element_ttl; 2137 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2138 if (ifmsh->user_mpm) 2139 return -EBUSY; 2140 conf->auto_open_plinks = nconf->auto_open_plinks; 2141 } 2142 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2143 conf->dot11MeshNbrOffsetMaxNeighbor = 2144 nconf->dot11MeshNbrOffsetMaxNeighbor; 2145 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2146 conf->dot11MeshHWMPmaxPREQretries = 2147 nconf->dot11MeshHWMPmaxPREQretries; 2148 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2149 conf->path_refresh_time = nconf->path_refresh_time; 2150 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2151 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2152 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2153 conf->dot11MeshHWMPactivePathTimeout = 2154 nconf->dot11MeshHWMPactivePathTimeout; 2155 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2156 conf->dot11MeshHWMPpreqMinInterval = 2157 nconf->dot11MeshHWMPpreqMinInterval; 2158 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2159 conf->dot11MeshHWMPperrMinInterval = 2160 nconf->dot11MeshHWMPperrMinInterval; 2161 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2162 mask)) 2163 conf->dot11MeshHWMPnetDiameterTraversalTime = 2164 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2165 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2166 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2167 ieee80211_mesh_root_setup(ifmsh); 2168 } 2169 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2170 /* our current gate announcement implementation rides on root 2171 * announcements, so require this ifmsh to also be a root node 2172 * */ 2173 if (nconf->dot11MeshGateAnnouncementProtocol && 2174 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2175 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2176 ieee80211_mesh_root_setup(ifmsh); 2177 } 2178 conf->dot11MeshGateAnnouncementProtocol = 2179 nconf->dot11MeshGateAnnouncementProtocol; 2180 } 2181 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2182 conf->dot11MeshHWMPRannInterval = 2183 nconf->dot11MeshHWMPRannInterval; 2184 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2185 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2186 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2187 /* our RSSI threshold implementation is supported only for 2188 * devices that report signal in dBm. 2189 */ 2190 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2191 return -ENOTSUPP; 2192 conf->rssi_threshold = nconf->rssi_threshold; 2193 } 2194 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2195 conf->ht_opmode = nconf->ht_opmode; 2196 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2197 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2198 } 2199 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2200 conf->dot11MeshHWMPactivePathToRootTimeout = 2201 nconf->dot11MeshHWMPactivePathToRootTimeout; 2202 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2203 conf->dot11MeshHWMProotInterval = 2204 nconf->dot11MeshHWMProotInterval; 2205 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2206 conf->dot11MeshHWMPconfirmationInterval = 2207 nconf->dot11MeshHWMPconfirmationInterval; 2208 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2209 conf->power_mode = nconf->power_mode; 2210 ieee80211_mps_local_status_update(sdata); 2211 } 2212 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2213 conf->dot11MeshAwakeWindowDuration = 2214 nconf->dot11MeshAwakeWindowDuration; 2215 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2216 conf->plink_timeout = nconf->plink_timeout; 2217 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2218 conf->dot11MeshConnectedToMeshGate = 2219 nconf->dot11MeshConnectedToMeshGate; 2220 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2221 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2222 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2223 conf->dot11MeshConnectedToAuthServer = 2224 nconf->dot11MeshConnectedToAuthServer; 2225 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2226 return 0; 2227 } 2228 2229 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2230 const struct mesh_config *conf, 2231 const struct mesh_setup *setup) 2232 { 2233 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2234 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2235 int err; 2236 2237 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2238 err = copy_mesh_setup(ifmsh, setup); 2239 if (err) 2240 return err; 2241 2242 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2243 2244 /* can mesh use other SMPS modes? */ 2245 sdata->smps_mode = IEEE80211_SMPS_OFF; 2246 sdata->needed_rx_chains = sdata->local->rx_chains; 2247 2248 mutex_lock(&sdata->local->mtx); 2249 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2250 IEEE80211_CHANCTX_SHARED); 2251 mutex_unlock(&sdata->local->mtx); 2252 if (err) 2253 return err; 2254 2255 return ieee80211_start_mesh(sdata); 2256 } 2257 2258 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2259 { 2260 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2261 2262 ieee80211_stop_mesh(sdata); 2263 mutex_lock(&sdata->local->mtx); 2264 ieee80211_vif_release_channel(sdata); 2265 kfree(sdata->u.mesh.ie); 2266 mutex_unlock(&sdata->local->mtx); 2267 2268 return 0; 2269 } 2270 #endif 2271 2272 static int ieee80211_change_bss(struct wiphy *wiphy, 2273 struct net_device *dev, 2274 struct bss_parameters *params) 2275 { 2276 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2277 struct ieee80211_supported_band *sband; 2278 u32 changed = 0; 2279 2280 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2281 return -ENOENT; 2282 2283 sband = ieee80211_get_sband(sdata); 2284 if (!sband) 2285 return -EINVAL; 2286 2287 if (params->use_cts_prot >= 0) { 2288 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2289 changed |= BSS_CHANGED_ERP_CTS_PROT; 2290 } 2291 if (params->use_short_preamble >= 0) { 2292 sdata->vif.bss_conf.use_short_preamble = 2293 params->use_short_preamble; 2294 changed |= BSS_CHANGED_ERP_PREAMBLE; 2295 } 2296 2297 if (!sdata->vif.bss_conf.use_short_slot && 2298 (sband->band == NL80211_BAND_5GHZ || 2299 sband->band == NL80211_BAND_6GHZ)) { 2300 sdata->vif.bss_conf.use_short_slot = true; 2301 changed |= BSS_CHANGED_ERP_SLOT; 2302 } 2303 2304 if (params->use_short_slot_time >= 0) { 2305 sdata->vif.bss_conf.use_short_slot = 2306 params->use_short_slot_time; 2307 changed |= BSS_CHANGED_ERP_SLOT; 2308 } 2309 2310 if (params->basic_rates) { 2311 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2312 wiphy->bands[sband->band], 2313 params->basic_rates, 2314 params->basic_rates_len, 2315 &sdata->vif.bss_conf.basic_rates); 2316 changed |= BSS_CHANGED_BASIC_RATES; 2317 ieee80211_check_rate_mask(sdata); 2318 } 2319 2320 if (params->ap_isolate >= 0) { 2321 if (params->ap_isolate) 2322 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2323 else 2324 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2325 ieee80211_check_fast_rx_iface(sdata); 2326 } 2327 2328 if (params->ht_opmode >= 0) { 2329 sdata->vif.bss_conf.ht_operation_mode = 2330 (u16) params->ht_opmode; 2331 changed |= BSS_CHANGED_HT; 2332 } 2333 2334 if (params->p2p_ctwindow >= 0) { 2335 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2336 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2337 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2338 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2339 changed |= BSS_CHANGED_P2P_PS; 2340 } 2341 2342 if (params->p2p_opp_ps > 0) { 2343 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2344 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2345 changed |= BSS_CHANGED_P2P_PS; 2346 } else if (params->p2p_opp_ps == 0) { 2347 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2348 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2349 changed |= BSS_CHANGED_P2P_PS; 2350 } 2351 2352 ieee80211_bss_info_change_notify(sdata, changed); 2353 2354 return 0; 2355 } 2356 2357 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2358 struct net_device *dev, 2359 struct ieee80211_txq_params *params) 2360 { 2361 struct ieee80211_local *local = wiphy_priv(wiphy); 2362 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2363 struct ieee80211_tx_queue_params p; 2364 2365 if (!local->ops->conf_tx) 2366 return -EOPNOTSUPP; 2367 2368 if (local->hw.queues < IEEE80211_NUM_ACS) 2369 return -EOPNOTSUPP; 2370 2371 memset(&p, 0, sizeof(p)); 2372 p.aifs = params->aifs; 2373 p.cw_max = params->cwmax; 2374 p.cw_min = params->cwmin; 2375 p.txop = params->txop; 2376 2377 /* 2378 * Setting tx queue params disables u-apsd because it's only 2379 * called in master mode. 2380 */ 2381 p.uapsd = false; 2382 2383 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2384 2385 sdata->tx_conf[params->ac] = p; 2386 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2387 wiphy_debug(local->hw.wiphy, 2388 "failed to set TX queue parameters for AC %d\n", 2389 params->ac); 2390 return -EINVAL; 2391 } 2392 2393 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2394 2395 return 0; 2396 } 2397 2398 #ifdef CONFIG_PM 2399 static int ieee80211_suspend(struct wiphy *wiphy, 2400 struct cfg80211_wowlan *wowlan) 2401 { 2402 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2403 } 2404 2405 static int ieee80211_resume(struct wiphy *wiphy) 2406 { 2407 return __ieee80211_resume(wiphy_priv(wiphy)); 2408 } 2409 #else 2410 #define ieee80211_suspend NULL 2411 #define ieee80211_resume NULL 2412 #endif 2413 2414 static int ieee80211_scan(struct wiphy *wiphy, 2415 struct cfg80211_scan_request *req) 2416 { 2417 struct ieee80211_sub_if_data *sdata; 2418 2419 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2420 2421 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2422 case NL80211_IFTYPE_STATION: 2423 case NL80211_IFTYPE_ADHOC: 2424 case NL80211_IFTYPE_MESH_POINT: 2425 case NL80211_IFTYPE_P2P_CLIENT: 2426 case NL80211_IFTYPE_P2P_DEVICE: 2427 break; 2428 case NL80211_IFTYPE_P2P_GO: 2429 if (sdata->local->ops->hw_scan) 2430 break; 2431 /* 2432 * FIXME: implement NoA while scanning in software, 2433 * for now fall through to allow scanning only when 2434 * beaconing hasn't been configured yet 2435 */ 2436 fallthrough; 2437 case NL80211_IFTYPE_AP: 2438 /* 2439 * If the scan has been forced (and the driver supports 2440 * forcing), don't care about being beaconing already. 2441 * This will create problems to the attached stations (e.g. all 2442 * the frames sent while scanning on other channel will be 2443 * lost) 2444 */ 2445 if (sdata->u.ap.beacon && 2446 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2447 !(req->flags & NL80211_SCAN_FLAG_AP))) 2448 return -EOPNOTSUPP; 2449 break; 2450 case NL80211_IFTYPE_NAN: 2451 default: 2452 return -EOPNOTSUPP; 2453 } 2454 2455 return ieee80211_request_scan(sdata, req); 2456 } 2457 2458 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2459 { 2460 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2461 } 2462 2463 static int 2464 ieee80211_sched_scan_start(struct wiphy *wiphy, 2465 struct net_device *dev, 2466 struct cfg80211_sched_scan_request *req) 2467 { 2468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2469 2470 if (!sdata->local->ops->sched_scan_start) 2471 return -EOPNOTSUPP; 2472 2473 return ieee80211_request_sched_scan_start(sdata, req); 2474 } 2475 2476 static int 2477 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2478 u64 reqid) 2479 { 2480 struct ieee80211_local *local = wiphy_priv(wiphy); 2481 2482 if (!local->ops->sched_scan_stop) 2483 return -EOPNOTSUPP; 2484 2485 return ieee80211_request_sched_scan_stop(local); 2486 } 2487 2488 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2489 struct cfg80211_auth_request *req) 2490 { 2491 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2492 } 2493 2494 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2495 struct cfg80211_assoc_request *req) 2496 { 2497 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2498 } 2499 2500 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2501 struct cfg80211_deauth_request *req) 2502 { 2503 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2504 } 2505 2506 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2507 struct cfg80211_disassoc_request *req) 2508 { 2509 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2510 } 2511 2512 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2513 struct cfg80211_ibss_params *params) 2514 { 2515 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2516 } 2517 2518 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2519 { 2520 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2521 } 2522 2523 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2524 struct ocb_setup *setup) 2525 { 2526 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2527 } 2528 2529 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2530 { 2531 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2532 } 2533 2534 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2535 int rate[NUM_NL80211_BANDS]) 2536 { 2537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2538 2539 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2540 sizeof(int) * NUM_NL80211_BANDS); 2541 2542 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2543 2544 return 0; 2545 } 2546 2547 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2548 { 2549 struct ieee80211_local *local = wiphy_priv(wiphy); 2550 int err; 2551 2552 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2553 ieee80211_check_fast_xmit_all(local); 2554 2555 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2556 2557 if (err) { 2558 ieee80211_check_fast_xmit_all(local); 2559 return err; 2560 } 2561 } 2562 2563 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2564 (changed & WIPHY_PARAM_DYN_ACK)) { 2565 s16 coverage_class; 2566 2567 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2568 wiphy->coverage_class : -1; 2569 err = drv_set_coverage_class(local, coverage_class); 2570 2571 if (err) 2572 return err; 2573 } 2574 2575 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2576 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2577 2578 if (err) 2579 return err; 2580 } 2581 2582 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2583 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2584 return -EINVAL; 2585 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2586 } 2587 if (changed & WIPHY_PARAM_RETRY_LONG) { 2588 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2589 return -EINVAL; 2590 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2591 } 2592 if (changed & 2593 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2594 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2595 2596 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2597 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2598 WIPHY_PARAM_TXQ_QUANTUM)) 2599 ieee80211_txq_set_params(local); 2600 2601 return 0; 2602 } 2603 2604 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2605 struct wireless_dev *wdev, 2606 enum nl80211_tx_power_setting type, int mbm) 2607 { 2608 struct ieee80211_local *local = wiphy_priv(wiphy); 2609 struct ieee80211_sub_if_data *sdata; 2610 enum nl80211_tx_power_setting txp_type = type; 2611 bool update_txp_type = false; 2612 bool has_monitor = false; 2613 2614 if (wdev) { 2615 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2616 2617 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2618 sdata = rtnl_dereference(local->monitor_sdata); 2619 if (!sdata) 2620 return -EOPNOTSUPP; 2621 } 2622 2623 switch (type) { 2624 case NL80211_TX_POWER_AUTOMATIC: 2625 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2626 txp_type = NL80211_TX_POWER_LIMITED; 2627 break; 2628 case NL80211_TX_POWER_LIMITED: 2629 case NL80211_TX_POWER_FIXED: 2630 if (mbm < 0 || (mbm % 100)) 2631 return -EOPNOTSUPP; 2632 sdata->user_power_level = MBM_TO_DBM(mbm); 2633 break; 2634 } 2635 2636 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2637 update_txp_type = true; 2638 sdata->vif.bss_conf.txpower_type = txp_type; 2639 } 2640 2641 ieee80211_recalc_txpower(sdata, update_txp_type); 2642 2643 return 0; 2644 } 2645 2646 switch (type) { 2647 case NL80211_TX_POWER_AUTOMATIC: 2648 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2649 txp_type = NL80211_TX_POWER_LIMITED; 2650 break; 2651 case NL80211_TX_POWER_LIMITED: 2652 case NL80211_TX_POWER_FIXED: 2653 if (mbm < 0 || (mbm % 100)) 2654 return -EOPNOTSUPP; 2655 local->user_power_level = MBM_TO_DBM(mbm); 2656 break; 2657 } 2658 2659 mutex_lock(&local->iflist_mtx); 2660 list_for_each_entry(sdata, &local->interfaces, list) { 2661 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2662 has_monitor = true; 2663 continue; 2664 } 2665 sdata->user_power_level = local->user_power_level; 2666 if (txp_type != sdata->vif.bss_conf.txpower_type) 2667 update_txp_type = true; 2668 sdata->vif.bss_conf.txpower_type = txp_type; 2669 } 2670 list_for_each_entry(sdata, &local->interfaces, list) { 2671 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2672 continue; 2673 ieee80211_recalc_txpower(sdata, update_txp_type); 2674 } 2675 mutex_unlock(&local->iflist_mtx); 2676 2677 if (has_monitor) { 2678 sdata = rtnl_dereference(local->monitor_sdata); 2679 if (sdata) { 2680 sdata->user_power_level = local->user_power_level; 2681 if (txp_type != sdata->vif.bss_conf.txpower_type) 2682 update_txp_type = true; 2683 sdata->vif.bss_conf.txpower_type = txp_type; 2684 2685 ieee80211_recalc_txpower(sdata, update_txp_type); 2686 } 2687 } 2688 2689 return 0; 2690 } 2691 2692 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2693 struct wireless_dev *wdev, 2694 int *dbm) 2695 { 2696 struct ieee80211_local *local = wiphy_priv(wiphy); 2697 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2698 2699 if (local->ops->get_txpower) 2700 return drv_get_txpower(local, sdata, dbm); 2701 2702 if (!local->use_chanctx) 2703 *dbm = local->hw.conf.power_level; 2704 else 2705 *dbm = sdata->vif.bss_conf.txpower; 2706 2707 return 0; 2708 } 2709 2710 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2711 { 2712 struct ieee80211_local *local = wiphy_priv(wiphy); 2713 2714 drv_rfkill_poll(local); 2715 } 2716 2717 #ifdef CONFIG_NL80211_TESTMODE 2718 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2719 struct wireless_dev *wdev, 2720 void *data, int len) 2721 { 2722 struct ieee80211_local *local = wiphy_priv(wiphy); 2723 struct ieee80211_vif *vif = NULL; 2724 2725 if (!local->ops->testmode_cmd) 2726 return -EOPNOTSUPP; 2727 2728 if (wdev) { 2729 struct ieee80211_sub_if_data *sdata; 2730 2731 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2732 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2733 vif = &sdata->vif; 2734 } 2735 2736 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2737 } 2738 2739 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2740 struct sk_buff *skb, 2741 struct netlink_callback *cb, 2742 void *data, int len) 2743 { 2744 struct ieee80211_local *local = wiphy_priv(wiphy); 2745 2746 if (!local->ops->testmode_dump) 2747 return -EOPNOTSUPP; 2748 2749 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2750 } 2751 #endif 2752 2753 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2754 enum ieee80211_smps_mode smps_mode) 2755 { 2756 const u8 *ap; 2757 enum ieee80211_smps_mode old_req; 2758 int err; 2759 struct sta_info *sta; 2760 bool tdls_peer_found = false; 2761 2762 lockdep_assert_held(&sdata->wdev.mtx); 2763 2764 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2765 return -EINVAL; 2766 2767 old_req = sdata->u.mgd.req_smps; 2768 sdata->u.mgd.req_smps = smps_mode; 2769 2770 if (old_req == smps_mode && 2771 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2772 return 0; 2773 2774 /* 2775 * If not associated, or current association is not an HT 2776 * association, there's no need to do anything, just store 2777 * the new value until we associate. 2778 */ 2779 if (!sdata->u.mgd.associated || 2780 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2781 return 0; 2782 2783 ap = sdata->u.mgd.associated->bssid; 2784 2785 rcu_read_lock(); 2786 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2787 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2788 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2789 continue; 2790 2791 tdls_peer_found = true; 2792 break; 2793 } 2794 rcu_read_unlock(); 2795 2796 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2797 if (tdls_peer_found || !sdata->u.mgd.powersave) 2798 smps_mode = IEEE80211_SMPS_OFF; 2799 else 2800 smps_mode = IEEE80211_SMPS_DYNAMIC; 2801 } 2802 2803 /* send SM PS frame to AP */ 2804 err = ieee80211_send_smps_action(sdata, smps_mode, 2805 ap, ap); 2806 if (err) 2807 sdata->u.mgd.req_smps = old_req; 2808 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2809 ieee80211_teardown_tdls_peers(sdata); 2810 2811 return err; 2812 } 2813 2814 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2815 bool enabled, int timeout) 2816 { 2817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2818 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2819 2820 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2821 return -EOPNOTSUPP; 2822 2823 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2824 return -EOPNOTSUPP; 2825 2826 if (enabled == sdata->u.mgd.powersave && 2827 timeout == local->dynamic_ps_forced_timeout) 2828 return 0; 2829 2830 sdata->u.mgd.powersave = enabled; 2831 local->dynamic_ps_forced_timeout = timeout; 2832 2833 /* no change, but if automatic follow powersave */ 2834 sdata_lock(sdata); 2835 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2836 sdata_unlock(sdata); 2837 2838 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2839 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2840 2841 ieee80211_recalc_ps(local); 2842 ieee80211_recalc_ps_vif(sdata); 2843 ieee80211_check_fast_rx_iface(sdata); 2844 2845 return 0; 2846 } 2847 2848 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2849 struct net_device *dev, 2850 s32 rssi_thold, u32 rssi_hyst) 2851 { 2852 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2853 struct ieee80211_vif *vif = &sdata->vif; 2854 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2855 2856 if (rssi_thold == bss_conf->cqm_rssi_thold && 2857 rssi_hyst == bss_conf->cqm_rssi_hyst) 2858 return 0; 2859 2860 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2861 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2862 return -EOPNOTSUPP; 2863 2864 bss_conf->cqm_rssi_thold = rssi_thold; 2865 bss_conf->cqm_rssi_hyst = rssi_hyst; 2866 bss_conf->cqm_rssi_low = 0; 2867 bss_conf->cqm_rssi_high = 0; 2868 sdata->u.mgd.last_cqm_event_signal = 0; 2869 2870 /* tell the driver upon association, unless already associated */ 2871 if (sdata->u.mgd.associated && 2872 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2873 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2874 2875 return 0; 2876 } 2877 2878 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2879 struct net_device *dev, 2880 s32 rssi_low, s32 rssi_high) 2881 { 2882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2883 struct ieee80211_vif *vif = &sdata->vif; 2884 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2885 2886 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2887 return -EOPNOTSUPP; 2888 2889 bss_conf->cqm_rssi_low = rssi_low; 2890 bss_conf->cqm_rssi_high = rssi_high; 2891 bss_conf->cqm_rssi_thold = 0; 2892 bss_conf->cqm_rssi_hyst = 0; 2893 sdata->u.mgd.last_cqm_event_signal = 0; 2894 2895 /* tell the driver upon association, unless already associated */ 2896 if (sdata->u.mgd.associated && 2897 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2898 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2899 2900 return 0; 2901 } 2902 2903 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2904 struct net_device *dev, 2905 const u8 *addr, 2906 const struct cfg80211_bitrate_mask *mask) 2907 { 2908 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2909 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2910 int i, ret; 2911 2912 if (!ieee80211_sdata_running(sdata)) 2913 return -ENETDOWN; 2914 2915 /* 2916 * If active validate the setting and reject it if it doesn't leave 2917 * at least one basic rate usable, since we really have to be able 2918 * to send something, and if we're an AP we have to be able to do 2919 * so at a basic rate so that all clients can receive it. 2920 */ 2921 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2922 sdata->vif.bss_conf.chandef.chan) { 2923 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2924 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2925 2926 if (!(mask->control[band].legacy & basic_rates)) 2927 return -EINVAL; 2928 } 2929 2930 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2931 ret = drv_set_bitrate_mask(local, sdata, mask); 2932 if (ret) 2933 return ret; 2934 } 2935 2936 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2937 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2938 int j; 2939 2940 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2941 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2942 sizeof(mask->control[i].ht_mcs)); 2943 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2944 mask->control[i].vht_mcs, 2945 sizeof(mask->control[i].vht_mcs)); 2946 2947 sdata->rc_has_mcs_mask[i] = false; 2948 sdata->rc_has_vht_mcs_mask[i] = false; 2949 if (!sband) 2950 continue; 2951 2952 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2953 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2954 sdata->rc_has_mcs_mask[i] = true; 2955 break; 2956 } 2957 } 2958 2959 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2960 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2961 sdata->rc_has_vht_mcs_mask[i] = true; 2962 break; 2963 } 2964 } 2965 } 2966 2967 return 0; 2968 } 2969 2970 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2971 struct net_device *dev, 2972 struct cfg80211_chan_def *chandef, 2973 u32 cac_time_ms) 2974 { 2975 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2976 struct ieee80211_local *local = sdata->local; 2977 int err; 2978 2979 mutex_lock(&local->mtx); 2980 if (!list_empty(&local->roc_list) || local->scanning) { 2981 err = -EBUSY; 2982 goto out_unlock; 2983 } 2984 2985 /* whatever, but channel contexts should not complain about that one */ 2986 sdata->smps_mode = IEEE80211_SMPS_OFF; 2987 sdata->needed_rx_chains = local->rx_chains; 2988 2989 err = ieee80211_vif_use_channel(sdata, chandef, 2990 IEEE80211_CHANCTX_SHARED); 2991 if (err) 2992 goto out_unlock; 2993 2994 ieee80211_queue_delayed_work(&sdata->local->hw, 2995 &sdata->dfs_cac_timer_work, 2996 msecs_to_jiffies(cac_time_ms)); 2997 2998 out_unlock: 2999 mutex_unlock(&local->mtx); 3000 return err; 3001 } 3002 3003 static void ieee80211_end_cac(struct wiphy *wiphy, 3004 struct net_device *dev) 3005 { 3006 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3007 struct ieee80211_local *local = sdata->local; 3008 3009 mutex_lock(&local->mtx); 3010 list_for_each_entry(sdata, &local->interfaces, list) { 3011 /* it might be waiting for the local->mtx, but then 3012 * by the time it gets it, sdata->wdev.cac_started 3013 * will no longer be true 3014 */ 3015 cancel_delayed_work(&sdata->dfs_cac_timer_work); 3016 3017 if (sdata->wdev.cac_started) { 3018 ieee80211_vif_release_channel(sdata); 3019 sdata->wdev.cac_started = false; 3020 } 3021 } 3022 mutex_unlock(&local->mtx); 3023 } 3024 3025 static struct cfg80211_beacon_data * 3026 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3027 { 3028 struct cfg80211_beacon_data *new_beacon; 3029 u8 *pos; 3030 int len; 3031 3032 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3033 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3034 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3035 3036 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3037 if (!new_beacon) 3038 return NULL; 3039 3040 pos = (u8 *)(new_beacon + 1); 3041 if (beacon->head_len) { 3042 new_beacon->head_len = beacon->head_len; 3043 new_beacon->head = pos; 3044 memcpy(pos, beacon->head, beacon->head_len); 3045 pos += beacon->head_len; 3046 } 3047 if (beacon->tail_len) { 3048 new_beacon->tail_len = beacon->tail_len; 3049 new_beacon->tail = pos; 3050 memcpy(pos, beacon->tail, beacon->tail_len); 3051 pos += beacon->tail_len; 3052 } 3053 if (beacon->beacon_ies_len) { 3054 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3055 new_beacon->beacon_ies = pos; 3056 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3057 pos += beacon->beacon_ies_len; 3058 } 3059 if (beacon->proberesp_ies_len) { 3060 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3061 new_beacon->proberesp_ies = pos; 3062 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3063 pos += beacon->proberesp_ies_len; 3064 } 3065 if (beacon->assocresp_ies_len) { 3066 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3067 new_beacon->assocresp_ies = pos; 3068 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3069 pos += beacon->assocresp_ies_len; 3070 } 3071 if (beacon->probe_resp_len) { 3072 new_beacon->probe_resp_len = beacon->probe_resp_len; 3073 new_beacon->probe_resp = pos; 3074 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3075 pos += beacon->probe_resp_len; 3076 } 3077 3078 /* might copy -1, meaning no changes requested */ 3079 new_beacon->ftm_responder = beacon->ftm_responder; 3080 if (beacon->lci) { 3081 new_beacon->lci_len = beacon->lci_len; 3082 new_beacon->lci = pos; 3083 memcpy(pos, beacon->lci, beacon->lci_len); 3084 pos += beacon->lci_len; 3085 } 3086 if (beacon->civicloc) { 3087 new_beacon->civicloc_len = beacon->civicloc_len; 3088 new_beacon->civicloc = pos; 3089 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3090 pos += beacon->civicloc_len; 3091 } 3092 3093 return new_beacon; 3094 } 3095 3096 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3097 { 3098 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3099 3100 ieee80211_queue_work(&sdata->local->hw, 3101 &sdata->csa_finalize_work); 3102 } 3103 EXPORT_SYMBOL(ieee80211_csa_finish); 3104 3105 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3106 u32 *changed) 3107 { 3108 int err; 3109 3110 switch (sdata->vif.type) { 3111 case NL80211_IFTYPE_AP: 3112 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3113 NULL); 3114 kfree(sdata->u.ap.next_beacon); 3115 sdata->u.ap.next_beacon = NULL; 3116 3117 if (err < 0) 3118 return err; 3119 *changed |= err; 3120 break; 3121 case NL80211_IFTYPE_ADHOC: 3122 err = ieee80211_ibss_finish_csa(sdata); 3123 if (err < 0) 3124 return err; 3125 *changed |= err; 3126 break; 3127 #ifdef CONFIG_MAC80211_MESH 3128 case NL80211_IFTYPE_MESH_POINT: 3129 err = ieee80211_mesh_finish_csa(sdata); 3130 if (err < 0) 3131 return err; 3132 *changed |= err; 3133 break; 3134 #endif 3135 default: 3136 WARN_ON(1); 3137 return -EINVAL; 3138 } 3139 3140 return 0; 3141 } 3142 3143 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3144 { 3145 struct ieee80211_local *local = sdata->local; 3146 u32 changed = 0; 3147 int err; 3148 3149 sdata_assert_lock(sdata); 3150 lockdep_assert_held(&local->mtx); 3151 lockdep_assert_held(&local->chanctx_mtx); 3152 3153 /* 3154 * using reservation isn't immediate as it may be deferred until later 3155 * with multi-vif. once reservation is complete it will re-schedule the 3156 * work with no reserved_chanctx so verify chandef to check if it 3157 * completed successfully 3158 */ 3159 3160 if (sdata->reserved_chanctx) { 3161 /* 3162 * with multi-vif csa driver may call ieee80211_csa_finish() 3163 * many times while waiting for other interfaces to use their 3164 * reservations 3165 */ 3166 if (sdata->reserved_ready) 3167 return 0; 3168 3169 return ieee80211_vif_use_reserved_context(sdata); 3170 } 3171 3172 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3173 &sdata->csa_chandef)) 3174 return -EINVAL; 3175 3176 sdata->vif.csa_active = false; 3177 3178 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3179 if (err) 3180 return err; 3181 3182 ieee80211_bss_info_change_notify(sdata, changed); 3183 3184 if (sdata->csa_block_tx) { 3185 ieee80211_wake_vif_queues(local, sdata, 3186 IEEE80211_QUEUE_STOP_REASON_CSA); 3187 sdata->csa_block_tx = false; 3188 } 3189 3190 err = drv_post_channel_switch(sdata); 3191 if (err) 3192 return err; 3193 3194 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3195 3196 return 0; 3197 } 3198 3199 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3200 { 3201 if (__ieee80211_csa_finalize(sdata)) { 3202 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3203 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3204 GFP_KERNEL); 3205 } 3206 } 3207 3208 void ieee80211_csa_finalize_work(struct work_struct *work) 3209 { 3210 struct ieee80211_sub_if_data *sdata = 3211 container_of(work, struct ieee80211_sub_if_data, 3212 csa_finalize_work); 3213 struct ieee80211_local *local = sdata->local; 3214 3215 sdata_lock(sdata); 3216 mutex_lock(&local->mtx); 3217 mutex_lock(&local->chanctx_mtx); 3218 3219 /* AP might have been stopped while waiting for the lock. */ 3220 if (!sdata->vif.csa_active) 3221 goto unlock; 3222 3223 if (!ieee80211_sdata_running(sdata)) 3224 goto unlock; 3225 3226 ieee80211_csa_finalize(sdata); 3227 3228 unlock: 3229 mutex_unlock(&local->chanctx_mtx); 3230 mutex_unlock(&local->mtx); 3231 sdata_unlock(sdata); 3232 } 3233 3234 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3235 struct cfg80211_csa_settings *params, 3236 u32 *changed) 3237 { 3238 struct ieee80211_csa_settings csa = {}; 3239 int err; 3240 3241 switch (sdata->vif.type) { 3242 case NL80211_IFTYPE_AP: 3243 sdata->u.ap.next_beacon = 3244 cfg80211_beacon_dup(¶ms->beacon_after); 3245 if (!sdata->u.ap.next_beacon) 3246 return -ENOMEM; 3247 3248 /* 3249 * With a count of 0, we don't have to wait for any 3250 * TBTT before switching, so complete the CSA 3251 * immediately. In theory, with a count == 1 we 3252 * should delay the switch until just before the next 3253 * TBTT, but that would complicate things so we switch 3254 * immediately too. If we would delay the switch 3255 * until the next TBTT, we would have to set the probe 3256 * response here. 3257 * 3258 * TODO: A channel switch with count <= 1 without 3259 * sending a CSA action frame is kind of useless, 3260 * because the clients won't know we're changing 3261 * channels. The action frame must be implemented 3262 * either here or in the userspace. 3263 */ 3264 if (params->count <= 1) 3265 break; 3266 3267 if ((params->n_counter_offsets_beacon > 3268 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3269 (params->n_counter_offsets_presp > 3270 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) 3271 return -EINVAL; 3272 3273 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3274 csa.counter_offsets_presp = params->counter_offsets_presp; 3275 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3276 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3277 csa.count = params->count; 3278 3279 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3280 if (err < 0) { 3281 kfree(sdata->u.ap.next_beacon); 3282 return err; 3283 } 3284 *changed |= err; 3285 3286 break; 3287 case NL80211_IFTYPE_ADHOC: 3288 if (!sdata->vif.bss_conf.ibss_joined) 3289 return -EINVAL; 3290 3291 if (params->chandef.width != sdata->u.ibss.chandef.width) 3292 return -EINVAL; 3293 3294 switch (params->chandef.width) { 3295 case NL80211_CHAN_WIDTH_40: 3296 if (cfg80211_get_chandef_type(¶ms->chandef) != 3297 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3298 return -EINVAL; 3299 break; 3300 case NL80211_CHAN_WIDTH_5: 3301 case NL80211_CHAN_WIDTH_10: 3302 case NL80211_CHAN_WIDTH_20_NOHT: 3303 case NL80211_CHAN_WIDTH_20: 3304 break; 3305 default: 3306 return -EINVAL; 3307 } 3308 3309 /* changes into another band are not supported */ 3310 if (sdata->u.ibss.chandef.chan->band != 3311 params->chandef.chan->band) 3312 return -EINVAL; 3313 3314 /* see comments in the NL80211_IFTYPE_AP block */ 3315 if (params->count > 1) { 3316 err = ieee80211_ibss_csa_beacon(sdata, params); 3317 if (err < 0) 3318 return err; 3319 *changed |= err; 3320 } 3321 3322 ieee80211_send_action_csa(sdata, params); 3323 3324 break; 3325 #ifdef CONFIG_MAC80211_MESH 3326 case NL80211_IFTYPE_MESH_POINT: { 3327 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3328 3329 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3330 return -EINVAL; 3331 3332 /* changes into another band are not supported */ 3333 if (sdata->vif.bss_conf.chandef.chan->band != 3334 params->chandef.chan->band) 3335 return -EINVAL; 3336 3337 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3338 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3339 if (!ifmsh->pre_value) 3340 ifmsh->pre_value = 1; 3341 else 3342 ifmsh->pre_value++; 3343 } 3344 3345 /* see comments in the NL80211_IFTYPE_AP block */ 3346 if (params->count > 1) { 3347 err = ieee80211_mesh_csa_beacon(sdata, params); 3348 if (err < 0) { 3349 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3350 return err; 3351 } 3352 *changed |= err; 3353 } 3354 3355 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3356 ieee80211_send_action_csa(sdata, params); 3357 3358 break; 3359 } 3360 #endif 3361 default: 3362 return -EOPNOTSUPP; 3363 } 3364 3365 return 0; 3366 } 3367 3368 static int 3369 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3370 struct cfg80211_csa_settings *params) 3371 { 3372 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3373 struct ieee80211_local *local = sdata->local; 3374 struct ieee80211_channel_switch ch_switch; 3375 struct ieee80211_chanctx_conf *conf; 3376 struct ieee80211_chanctx *chanctx; 3377 u32 changed = 0; 3378 int err; 3379 3380 sdata_assert_lock(sdata); 3381 lockdep_assert_held(&local->mtx); 3382 3383 if (!list_empty(&local->roc_list) || local->scanning) 3384 return -EBUSY; 3385 3386 if (sdata->wdev.cac_started) 3387 return -EBUSY; 3388 3389 if (cfg80211_chandef_identical(¶ms->chandef, 3390 &sdata->vif.bss_conf.chandef)) 3391 return -EINVAL; 3392 3393 /* don't allow another channel switch if one is already active. */ 3394 if (sdata->vif.csa_active) 3395 return -EBUSY; 3396 3397 mutex_lock(&local->chanctx_mtx); 3398 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3399 lockdep_is_held(&local->chanctx_mtx)); 3400 if (!conf) { 3401 err = -EBUSY; 3402 goto out; 3403 } 3404 3405 if (params->chandef.chan->freq_offset) { 3406 /* this may work, but is untested */ 3407 err = -EOPNOTSUPP; 3408 goto out; 3409 } 3410 3411 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3412 3413 ch_switch.timestamp = 0; 3414 ch_switch.device_timestamp = 0; 3415 ch_switch.block_tx = params->block_tx; 3416 ch_switch.chandef = params->chandef; 3417 ch_switch.count = params->count; 3418 3419 err = drv_pre_channel_switch(sdata, &ch_switch); 3420 if (err) 3421 goto out; 3422 3423 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3424 chanctx->mode, 3425 params->radar_required); 3426 if (err) 3427 goto out; 3428 3429 /* if reservation is invalid then this will fail */ 3430 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3431 if (err) { 3432 ieee80211_vif_unreserve_chanctx(sdata); 3433 goto out; 3434 } 3435 3436 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3437 if (err) { 3438 ieee80211_vif_unreserve_chanctx(sdata); 3439 goto out; 3440 } 3441 3442 sdata->csa_chandef = params->chandef; 3443 sdata->csa_block_tx = params->block_tx; 3444 sdata->vif.csa_active = true; 3445 3446 if (sdata->csa_block_tx) 3447 ieee80211_stop_vif_queues(local, sdata, 3448 IEEE80211_QUEUE_STOP_REASON_CSA); 3449 3450 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3451 params->count, params->block_tx); 3452 3453 if (changed) { 3454 ieee80211_bss_info_change_notify(sdata, changed); 3455 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3456 } else { 3457 /* if the beacon didn't change, we can finalize immediately */ 3458 ieee80211_csa_finalize(sdata); 3459 } 3460 3461 out: 3462 mutex_unlock(&local->chanctx_mtx); 3463 return err; 3464 } 3465 3466 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3467 struct cfg80211_csa_settings *params) 3468 { 3469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3470 struct ieee80211_local *local = sdata->local; 3471 int err; 3472 3473 mutex_lock(&local->mtx); 3474 err = __ieee80211_channel_switch(wiphy, dev, params); 3475 mutex_unlock(&local->mtx); 3476 3477 return err; 3478 } 3479 3480 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3481 { 3482 lockdep_assert_held(&local->mtx); 3483 3484 local->roc_cookie_counter++; 3485 3486 /* wow, you wrapped 64 bits ... more likely a bug */ 3487 if (WARN_ON(local->roc_cookie_counter == 0)) 3488 local->roc_cookie_counter++; 3489 3490 return local->roc_cookie_counter; 3491 } 3492 3493 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3494 u64 *cookie, gfp_t gfp) 3495 { 3496 unsigned long spin_flags; 3497 struct sk_buff *ack_skb; 3498 int id; 3499 3500 ack_skb = skb_copy(skb, gfp); 3501 if (!ack_skb) 3502 return -ENOMEM; 3503 3504 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3505 id = idr_alloc(&local->ack_status_frames, ack_skb, 3506 1, 0x2000, GFP_ATOMIC); 3507 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3508 3509 if (id < 0) { 3510 kfree_skb(ack_skb); 3511 return -ENOMEM; 3512 } 3513 3514 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3515 3516 *cookie = ieee80211_mgmt_tx_cookie(local); 3517 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3518 3519 return 0; 3520 } 3521 3522 static void 3523 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3524 struct wireless_dev *wdev, 3525 struct mgmt_frame_regs *upd) 3526 { 3527 struct ieee80211_local *local = wiphy_priv(wiphy); 3528 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3529 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3530 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3531 bool global_change, intf_change; 3532 3533 global_change = 3534 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3535 (local->rx_mcast_action_reg != 3536 !!(upd->global_mcast_stypes & action_mask)); 3537 local->probe_req_reg = upd->global_stypes & preq_mask; 3538 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3539 3540 intf_change = (sdata->vif.probe_req_reg != 3541 !!(upd->interface_stypes & preq_mask)) || 3542 (sdata->vif.rx_mcast_action_reg != 3543 !!(upd->interface_mcast_stypes & action_mask)); 3544 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3545 sdata->vif.rx_mcast_action_reg = 3546 upd->interface_mcast_stypes & action_mask; 3547 3548 if (!local->open_count) 3549 return; 3550 3551 if (intf_change && ieee80211_sdata_running(sdata)) 3552 drv_config_iface_filter(local, sdata, 3553 sdata->vif.probe_req_reg ? 3554 FIF_PROBE_REQ : 0, 3555 FIF_PROBE_REQ); 3556 3557 if (global_change) 3558 ieee80211_configure_filter(local); 3559 } 3560 3561 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3562 { 3563 struct ieee80211_local *local = wiphy_priv(wiphy); 3564 3565 if (local->started) 3566 return -EOPNOTSUPP; 3567 3568 return drv_set_antenna(local, tx_ant, rx_ant); 3569 } 3570 3571 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3572 { 3573 struct ieee80211_local *local = wiphy_priv(wiphy); 3574 3575 return drv_get_antenna(local, tx_ant, rx_ant); 3576 } 3577 3578 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3579 struct net_device *dev, 3580 struct cfg80211_gtk_rekey_data *data) 3581 { 3582 struct ieee80211_local *local = wiphy_priv(wiphy); 3583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3584 3585 if (!local->ops->set_rekey_data) 3586 return -EOPNOTSUPP; 3587 3588 drv_set_rekey_data(local, sdata, data); 3589 3590 return 0; 3591 } 3592 3593 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3594 const u8 *peer, u64 *cookie) 3595 { 3596 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3597 struct ieee80211_local *local = sdata->local; 3598 struct ieee80211_qos_hdr *nullfunc; 3599 struct sk_buff *skb; 3600 int size = sizeof(*nullfunc); 3601 __le16 fc; 3602 bool qos; 3603 struct ieee80211_tx_info *info; 3604 struct sta_info *sta; 3605 struct ieee80211_chanctx_conf *chanctx_conf; 3606 enum nl80211_band band; 3607 int ret; 3608 3609 /* the lock is needed to assign the cookie later */ 3610 mutex_lock(&local->mtx); 3611 3612 rcu_read_lock(); 3613 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3614 if (WARN_ON(!chanctx_conf)) { 3615 ret = -EINVAL; 3616 goto unlock; 3617 } 3618 band = chanctx_conf->def.chan->band; 3619 sta = sta_info_get_bss(sdata, peer); 3620 if (sta) { 3621 qos = sta->sta.wme; 3622 } else { 3623 ret = -ENOLINK; 3624 goto unlock; 3625 } 3626 3627 if (qos) { 3628 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3629 IEEE80211_STYPE_QOS_NULLFUNC | 3630 IEEE80211_FCTL_FROMDS); 3631 } else { 3632 size -= 2; 3633 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3634 IEEE80211_STYPE_NULLFUNC | 3635 IEEE80211_FCTL_FROMDS); 3636 } 3637 3638 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3639 if (!skb) { 3640 ret = -ENOMEM; 3641 goto unlock; 3642 } 3643 3644 skb->dev = dev; 3645 3646 skb_reserve(skb, local->hw.extra_tx_headroom); 3647 3648 nullfunc = skb_put(skb, size); 3649 nullfunc->frame_control = fc; 3650 nullfunc->duration_id = 0; 3651 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3652 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3653 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3654 nullfunc->seq_ctrl = 0; 3655 3656 info = IEEE80211_SKB_CB(skb); 3657 3658 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3659 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3660 info->band = band; 3661 3662 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3663 skb->priority = 7; 3664 if (qos) 3665 nullfunc->qos_ctrl = cpu_to_le16(7); 3666 3667 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3668 if (ret) { 3669 kfree_skb(skb); 3670 goto unlock; 3671 } 3672 3673 local_bh_disable(); 3674 ieee80211_xmit(sdata, sta, skb); 3675 local_bh_enable(); 3676 3677 ret = 0; 3678 unlock: 3679 rcu_read_unlock(); 3680 mutex_unlock(&local->mtx); 3681 3682 return ret; 3683 } 3684 3685 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3686 struct wireless_dev *wdev, 3687 struct cfg80211_chan_def *chandef) 3688 { 3689 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3690 struct ieee80211_local *local = wiphy_priv(wiphy); 3691 struct ieee80211_chanctx_conf *chanctx_conf; 3692 int ret = -ENODATA; 3693 3694 rcu_read_lock(); 3695 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3696 if (chanctx_conf) { 3697 *chandef = sdata->vif.bss_conf.chandef; 3698 ret = 0; 3699 } else if (local->open_count > 0 && 3700 local->open_count == local->monitors && 3701 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3702 if (local->use_chanctx) 3703 *chandef = local->monitor_chandef; 3704 else 3705 *chandef = local->_oper_chandef; 3706 ret = 0; 3707 } 3708 rcu_read_unlock(); 3709 3710 return ret; 3711 } 3712 3713 #ifdef CONFIG_PM 3714 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3715 { 3716 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3717 } 3718 #endif 3719 3720 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3721 struct net_device *dev, 3722 struct cfg80211_qos_map *qos_map) 3723 { 3724 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3725 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3726 3727 if (qos_map) { 3728 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3729 if (!new_qos_map) 3730 return -ENOMEM; 3731 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3732 } else { 3733 /* A NULL qos_map was passed to disable QoS mapping */ 3734 new_qos_map = NULL; 3735 } 3736 3737 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3738 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3739 if (old_qos_map) 3740 kfree_rcu(old_qos_map, rcu_head); 3741 3742 return 0; 3743 } 3744 3745 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3746 struct net_device *dev, 3747 struct cfg80211_chan_def *chandef) 3748 { 3749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3750 int ret; 3751 u32 changed = 0; 3752 3753 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3754 if (ret == 0) 3755 ieee80211_bss_info_change_notify(sdata, changed); 3756 3757 return ret; 3758 } 3759 3760 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3761 u8 tsid, const u8 *peer, u8 up, 3762 u16 admitted_time) 3763 { 3764 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3765 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3766 int ac = ieee802_1d_to_ac[up]; 3767 3768 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3769 return -EOPNOTSUPP; 3770 3771 if (!(sdata->wmm_acm & BIT(up))) 3772 return -EINVAL; 3773 3774 if (ifmgd->tx_tspec[ac].admitted_time) 3775 return -EBUSY; 3776 3777 if (admitted_time) { 3778 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3779 ifmgd->tx_tspec[ac].tsid = tsid; 3780 ifmgd->tx_tspec[ac].up = up; 3781 } 3782 3783 return 0; 3784 } 3785 3786 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3787 u8 tsid, const u8 *peer) 3788 { 3789 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3790 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3791 struct ieee80211_local *local = wiphy_priv(wiphy); 3792 int ac; 3793 3794 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3795 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3796 3797 /* skip unused entries */ 3798 if (!tx_tspec->admitted_time) 3799 continue; 3800 3801 if (tx_tspec->tsid != tsid) 3802 continue; 3803 3804 /* due to this new packets will be reassigned to non-ACM ACs */ 3805 tx_tspec->up = -1; 3806 3807 /* Make sure that all packets have been sent to avoid to 3808 * restore the QoS params on packets that are still on the 3809 * queues. 3810 */ 3811 synchronize_net(); 3812 ieee80211_flush_queues(local, sdata, false); 3813 3814 /* restore the normal QoS parameters 3815 * (unconditionally to avoid races) 3816 */ 3817 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3818 tx_tspec->downgraded = false; 3819 ieee80211_sta_handle_tspec_ac_params(sdata); 3820 3821 /* finally clear all the data */ 3822 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3823 3824 return 0; 3825 } 3826 3827 return -ENOENT; 3828 } 3829 3830 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3831 u8 inst_id, 3832 enum nl80211_nan_func_term_reason reason, 3833 gfp_t gfp) 3834 { 3835 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3836 struct cfg80211_nan_func *func; 3837 u64 cookie; 3838 3839 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3840 return; 3841 3842 spin_lock_bh(&sdata->u.nan.func_lock); 3843 3844 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3845 if (WARN_ON(!func)) { 3846 spin_unlock_bh(&sdata->u.nan.func_lock); 3847 return; 3848 } 3849 3850 cookie = func->cookie; 3851 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3852 3853 spin_unlock_bh(&sdata->u.nan.func_lock); 3854 3855 cfg80211_free_nan_func(func); 3856 3857 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3858 reason, cookie, gfp); 3859 } 3860 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3861 3862 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3863 struct cfg80211_nan_match_params *match, 3864 gfp_t gfp) 3865 { 3866 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3867 struct cfg80211_nan_func *func; 3868 3869 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3870 return; 3871 3872 spin_lock_bh(&sdata->u.nan.func_lock); 3873 3874 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3875 if (WARN_ON(!func)) { 3876 spin_unlock_bh(&sdata->u.nan.func_lock); 3877 return; 3878 } 3879 match->cookie = func->cookie; 3880 3881 spin_unlock_bh(&sdata->u.nan.func_lock); 3882 3883 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3884 } 3885 EXPORT_SYMBOL(ieee80211_nan_func_match); 3886 3887 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3888 struct net_device *dev, 3889 const bool enabled) 3890 { 3891 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3892 3893 sdata->u.ap.multicast_to_unicast = enabled; 3894 3895 return 0; 3896 } 3897 3898 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3899 struct txq_info *txqi) 3900 { 3901 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3902 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3903 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3904 } 3905 3906 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3907 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3908 txqstats->backlog_packets = txqi->tin.backlog_packets; 3909 } 3910 3911 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3912 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3913 txqstats->flows = txqi->tin.flows; 3914 } 3915 3916 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3917 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3918 txqstats->drops = txqi->cstats.drop_count; 3919 } 3920 3921 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3922 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3923 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3924 } 3925 3926 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3927 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3928 txqstats->overlimit = txqi->tin.overlimit; 3929 } 3930 3931 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3932 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3933 txqstats->collisions = txqi->tin.collisions; 3934 } 3935 3936 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3937 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3938 txqstats->tx_bytes = txqi->tin.tx_bytes; 3939 } 3940 3941 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3942 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3943 txqstats->tx_packets = txqi->tin.tx_packets; 3944 } 3945 } 3946 3947 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3948 struct wireless_dev *wdev, 3949 struct cfg80211_txq_stats *txqstats) 3950 { 3951 struct ieee80211_local *local = wiphy_priv(wiphy); 3952 struct ieee80211_sub_if_data *sdata; 3953 int ret = 0; 3954 3955 if (!local->ops->wake_tx_queue) 3956 return 1; 3957 3958 spin_lock_bh(&local->fq.lock); 3959 rcu_read_lock(); 3960 3961 if (wdev) { 3962 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3963 if (!sdata->vif.txq) { 3964 ret = 1; 3965 goto out; 3966 } 3967 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3968 } else { 3969 /* phy stats */ 3970 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3971 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3972 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3973 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3974 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3975 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3976 txqstats->backlog_packets = local->fq.backlog; 3977 txqstats->backlog_bytes = local->fq.memory_usage; 3978 txqstats->overlimit = local->fq.overlimit; 3979 txqstats->overmemory = local->fq.overmemory; 3980 txqstats->collisions = local->fq.collisions; 3981 txqstats->max_flows = local->fq.flows_cnt; 3982 } 3983 3984 out: 3985 rcu_read_unlock(); 3986 spin_unlock_bh(&local->fq.lock); 3987 3988 return ret; 3989 } 3990 3991 static int 3992 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3993 struct net_device *dev, 3994 struct cfg80211_ftm_responder_stats *ftm_stats) 3995 { 3996 struct ieee80211_local *local = wiphy_priv(wiphy); 3997 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3998 3999 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4000 } 4001 4002 static int 4003 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4004 struct cfg80211_pmsr_request *request) 4005 { 4006 struct ieee80211_local *local = wiphy_priv(wiphy); 4007 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4008 4009 return drv_start_pmsr(local, sdata, request); 4010 } 4011 4012 static void 4013 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4014 struct cfg80211_pmsr_request *request) 4015 { 4016 struct ieee80211_local *local = wiphy_priv(wiphy); 4017 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4018 4019 return drv_abort_pmsr(local, sdata, request); 4020 } 4021 4022 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4023 struct net_device *dev, 4024 struct cfg80211_tid_config *tid_conf) 4025 { 4026 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4027 struct sta_info *sta; 4028 int ret; 4029 4030 if (!sdata->local->ops->set_tid_config) 4031 return -EOPNOTSUPP; 4032 4033 if (!tid_conf->peer) 4034 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4035 4036 mutex_lock(&sdata->local->sta_mtx); 4037 sta = sta_info_get_bss(sdata, tid_conf->peer); 4038 if (!sta) { 4039 mutex_unlock(&sdata->local->sta_mtx); 4040 return -ENOENT; 4041 } 4042 4043 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4044 mutex_unlock(&sdata->local->sta_mtx); 4045 4046 return ret; 4047 } 4048 4049 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4050 struct net_device *dev, 4051 const u8 *peer, u8 tids) 4052 { 4053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4054 struct sta_info *sta; 4055 int ret; 4056 4057 if (!sdata->local->ops->reset_tid_config) 4058 return -EOPNOTSUPP; 4059 4060 if (!peer) 4061 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4062 4063 mutex_lock(&sdata->local->sta_mtx); 4064 sta = sta_info_get_bss(sdata, peer); 4065 if (!sta) { 4066 mutex_unlock(&sdata->local->sta_mtx); 4067 return -ENOENT; 4068 } 4069 4070 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4071 mutex_unlock(&sdata->local->sta_mtx); 4072 4073 return ret; 4074 } 4075 4076 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4077 struct cfg80211_sar_specs *sar) 4078 { 4079 struct ieee80211_local *local = wiphy_priv(wiphy); 4080 4081 if (!local->ops->set_sar_specs) 4082 return -EOPNOTSUPP; 4083 4084 return local->ops->set_sar_specs(&local->hw, sar); 4085 } 4086 4087 const struct cfg80211_ops mac80211_config_ops = { 4088 .add_virtual_intf = ieee80211_add_iface, 4089 .del_virtual_intf = ieee80211_del_iface, 4090 .change_virtual_intf = ieee80211_change_iface, 4091 .start_p2p_device = ieee80211_start_p2p_device, 4092 .stop_p2p_device = ieee80211_stop_p2p_device, 4093 .add_key = ieee80211_add_key, 4094 .del_key = ieee80211_del_key, 4095 .get_key = ieee80211_get_key, 4096 .set_default_key = ieee80211_config_default_key, 4097 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4098 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4099 .start_ap = ieee80211_start_ap, 4100 .change_beacon = ieee80211_change_beacon, 4101 .stop_ap = ieee80211_stop_ap, 4102 .add_station = ieee80211_add_station, 4103 .del_station = ieee80211_del_station, 4104 .change_station = ieee80211_change_station, 4105 .get_station = ieee80211_get_station, 4106 .dump_station = ieee80211_dump_station, 4107 .dump_survey = ieee80211_dump_survey, 4108 #ifdef CONFIG_MAC80211_MESH 4109 .add_mpath = ieee80211_add_mpath, 4110 .del_mpath = ieee80211_del_mpath, 4111 .change_mpath = ieee80211_change_mpath, 4112 .get_mpath = ieee80211_get_mpath, 4113 .dump_mpath = ieee80211_dump_mpath, 4114 .get_mpp = ieee80211_get_mpp, 4115 .dump_mpp = ieee80211_dump_mpp, 4116 .update_mesh_config = ieee80211_update_mesh_config, 4117 .get_mesh_config = ieee80211_get_mesh_config, 4118 .join_mesh = ieee80211_join_mesh, 4119 .leave_mesh = ieee80211_leave_mesh, 4120 #endif 4121 .join_ocb = ieee80211_join_ocb, 4122 .leave_ocb = ieee80211_leave_ocb, 4123 .change_bss = ieee80211_change_bss, 4124 .set_txq_params = ieee80211_set_txq_params, 4125 .set_monitor_channel = ieee80211_set_monitor_channel, 4126 .suspend = ieee80211_suspend, 4127 .resume = ieee80211_resume, 4128 .scan = ieee80211_scan, 4129 .abort_scan = ieee80211_abort_scan, 4130 .sched_scan_start = ieee80211_sched_scan_start, 4131 .sched_scan_stop = ieee80211_sched_scan_stop, 4132 .auth = ieee80211_auth, 4133 .assoc = ieee80211_assoc, 4134 .deauth = ieee80211_deauth, 4135 .disassoc = ieee80211_disassoc, 4136 .join_ibss = ieee80211_join_ibss, 4137 .leave_ibss = ieee80211_leave_ibss, 4138 .set_mcast_rate = ieee80211_set_mcast_rate, 4139 .set_wiphy_params = ieee80211_set_wiphy_params, 4140 .set_tx_power = ieee80211_set_tx_power, 4141 .get_tx_power = ieee80211_get_tx_power, 4142 .rfkill_poll = ieee80211_rfkill_poll, 4143 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4144 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4145 .set_power_mgmt = ieee80211_set_power_mgmt, 4146 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4147 .remain_on_channel = ieee80211_remain_on_channel, 4148 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4149 .mgmt_tx = ieee80211_mgmt_tx, 4150 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4151 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4152 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4153 .update_mgmt_frame_registrations = 4154 ieee80211_update_mgmt_frame_registrations, 4155 .set_antenna = ieee80211_set_antenna, 4156 .get_antenna = ieee80211_get_antenna, 4157 .set_rekey_data = ieee80211_set_rekey_data, 4158 .tdls_oper = ieee80211_tdls_oper, 4159 .tdls_mgmt = ieee80211_tdls_mgmt, 4160 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4161 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4162 .probe_client = ieee80211_probe_client, 4163 .set_noack_map = ieee80211_set_noack_map, 4164 #ifdef CONFIG_PM 4165 .set_wakeup = ieee80211_set_wakeup, 4166 #endif 4167 .get_channel = ieee80211_cfg_get_channel, 4168 .start_radar_detection = ieee80211_start_radar_detection, 4169 .end_cac = ieee80211_end_cac, 4170 .channel_switch = ieee80211_channel_switch, 4171 .set_qos_map = ieee80211_set_qos_map, 4172 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4173 .add_tx_ts = ieee80211_add_tx_ts, 4174 .del_tx_ts = ieee80211_del_tx_ts, 4175 .start_nan = ieee80211_start_nan, 4176 .stop_nan = ieee80211_stop_nan, 4177 .nan_change_conf = ieee80211_nan_change_conf, 4178 .add_nan_func = ieee80211_add_nan_func, 4179 .del_nan_func = ieee80211_del_nan_func, 4180 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4181 .tx_control_port = ieee80211_tx_control_port, 4182 .get_txq_stats = ieee80211_get_txq_stats, 4183 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4184 .start_pmsr = ieee80211_start_pmsr, 4185 .abort_pmsr = ieee80211_abort_pmsr, 4186 .probe_mesh_link = ieee80211_probe_mesh_link, 4187 .set_tid_config = ieee80211_set_tid_config, 4188 .reset_tid_config = ieee80211_reset_tid_config, 4189 .set_sar_specs = ieee80211_set_sar_specs, 4190 }; 4191