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 struct ieee80211_local *local = sdata->local; 156 struct sta_info *sta; 157 int ret; 158 159 ret = ieee80211_if_change_type(sdata, type); 160 if (ret) 161 return ret; 162 163 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 164 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 165 ieee80211_check_fast_rx_iface(sdata); 166 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 167 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 168 169 if (params->use_4addr == ifmgd->use_4addr) 170 return 0; 171 172 sdata->u.mgd.use_4addr = params->use_4addr; 173 if (!ifmgd->associated) 174 return 0; 175 176 mutex_lock(&local->sta_mtx); 177 sta = sta_info_get(sdata, ifmgd->bssid); 178 if (sta) 179 drv_sta_set_4addr(local, sdata, &sta->sta, 180 params->use_4addr); 181 mutex_unlock(&local->sta_mtx); 182 183 if (params->use_4addr) 184 ieee80211_send_4addr_nullfunc(local, sdata); 185 } 186 187 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 188 ret = ieee80211_set_mon_options(sdata, params); 189 if (ret) 190 return ret; 191 } 192 193 return 0; 194 } 195 196 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 197 struct wireless_dev *wdev) 198 { 199 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 200 int ret; 201 202 mutex_lock(&sdata->local->chanctx_mtx); 203 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 204 mutex_unlock(&sdata->local->chanctx_mtx); 205 if (ret < 0) 206 return ret; 207 208 return ieee80211_do_open(wdev, true); 209 } 210 211 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 212 struct wireless_dev *wdev) 213 { 214 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 215 } 216 217 static int ieee80211_start_nan(struct wiphy *wiphy, 218 struct wireless_dev *wdev, 219 struct cfg80211_nan_conf *conf) 220 { 221 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 222 int ret; 223 224 mutex_lock(&sdata->local->chanctx_mtx); 225 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 226 mutex_unlock(&sdata->local->chanctx_mtx); 227 if (ret < 0) 228 return ret; 229 230 ret = ieee80211_do_open(wdev, true); 231 if (ret) 232 return ret; 233 234 ret = drv_start_nan(sdata->local, sdata, conf); 235 if (ret) 236 ieee80211_sdata_stop(sdata); 237 238 sdata->u.nan.conf = *conf; 239 240 return ret; 241 } 242 243 static void ieee80211_stop_nan(struct wiphy *wiphy, 244 struct wireless_dev *wdev) 245 { 246 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 247 248 drv_stop_nan(sdata->local, sdata); 249 ieee80211_sdata_stop(sdata); 250 } 251 252 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 253 struct wireless_dev *wdev, 254 struct cfg80211_nan_conf *conf, 255 u32 changes) 256 { 257 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 258 struct cfg80211_nan_conf new_conf; 259 int ret = 0; 260 261 if (sdata->vif.type != NL80211_IFTYPE_NAN) 262 return -EOPNOTSUPP; 263 264 if (!ieee80211_sdata_running(sdata)) 265 return -ENETDOWN; 266 267 new_conf = sdata->u.nan.conf; 268 269 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 270 new_conf.master_pref = conf->master_pref; 271 272 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 273 new_conf.bands = conf->bands; 274 275 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 276 if (!ret) 277 sdata->u.nan.conf = new_conf; 278 279 return ret; 280 } 281 282 static int ieee80211_add_nan_func(struct wiphy *wiphy, 283 struct wireless_dev *wdev, 284 struct cfg80211_nan_func *nan_func) 285 { 286 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 287 int ret; 288 289 if (sdata->vif.type != NL80211_IFTYPE_NAN) 290 return -EOPNOTSUPP; 291 292 if (!ieee80211_sdata_running(sdata)) 293 return -ENETDOWN; 294 295 spin_lock_bh(&sdata->u.nan.func_lock); 296 297 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 298 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 299 GFP_ATOMIC); 300 spin_unlock_bh(&sdata->u.nan.func_lock); 301 302 if (ret < 0) 303 return ret; 304 305 nan_func->instance_id = ret; 306 307 WARN_ON(nan_func->instance_id == 0); 308 309 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 310 if (ret) { 311 spin_lock_bh(&sdata->u.nan.func_lock); 312 idr_remove(&sdata->u.nan.function_inst_ids, 313 nan_func->instance_id); 314 spin_unlock_bh(&sdata->u.nan.func_lock); 315 } 316 317 return ret; 318 } 319 320 static struct cfg80211_nan_func * 321 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 322 u64 cookie) 323 { 324 struct cfg80211_nan_func *func; 325 int id; 326 327 lockdep_assert_held(&sdata->u.nan.func_lock); 328 329 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 330 if (func->cookie == cookie) 331 return func; 332 } 333 334 return NULL; 335 } 336 337 static void ieee80211_del_nan_func(struct wiphy *wiphy, 338 struct wireless_dev *wdev, u64 cookie) 339 { 340 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 341 struct cfg80211_nan_func *func; 342 u8 instance_id = 0; 343 344 if (sdata->vif.type != NL80211_IFTYPE_NAN || 345 !ieee80211_sdata_running(sdata)) 346 return; 347 348 spin_lock_bh(&sdata->u.nan.func_lock); 349 350 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 351 if (func) 352 instance_id = func->instance_id; 353 354 spin_unlock_bh(&sdata->u.nan.func_lock); 355 356 if (instance_id) 357 drv_del_nan_func(sdata->local, sdata, instance_id); 358 } 359 360 static int ieee80211_set_noack_map(struct wiphy *wiphy, 361 struct net_device *dev, 362 u16 noack_map) 363 { 364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 365 366 sdata->noack_map = noack_map; 367 368 ieee80211_check_fast_xmit_iface(sdata); 369 370 return 0; 371 } 372 373 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 374 const u8 *mac_addr, u8 key_idx) 375 { 376 struct ieee80211_local *local = sdata->local; 377 struct ieee80211_key *key; 378 struct sta_info *sta; 379 int ret = -EINVAL; 380 381 if (!wiphy_ext_feature_isset(local->hw.wiphy, 382 NL80211_EXT_FEATURE_EXT_KEY_ID)) 383 return -EINVAL; 384 385 sta = sta_info_get_bss(sdata, mac_addr); 386 387 if (!sta) 388 return -EINVAL; 389 390 if (sta->ptk_idx == key_idx) 391 return 0; 392 393 mutex_lock(&local->key_mtx); 394 key = key_mtx_dereference(local, sta->ptk[key_idx]); 395 396 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 397 ret = ieee80211_set_tx_key(key); 398 399 mutex_unlock(&local->key_mtx); 400 return ret; 401 } 402 403 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 404 u8 key_idx, bool pairwise, const u8 *mac_addr, 405 struct key_params *params) 406 { 407 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 408 struct ieee80211_local *local = sdata->local; 409 struct sta_info *sta = NULL; 410 const struct ieee80211_cipher_scheme *cs = NULL; 411 struct ieee80211_key *key; 412 int err; 413 414 if (!ieee80211_sdata_running(sdata)) 415 return -ENETDOWN; 416 417 if (pairwise && params->mode == NL80211_KEY_SET_TX) 418 return ieee80211_set_tx(sdata, mac_addr, key_idx); 419 420 /* reject WEP and TKIP keys if WEP failed to initialize */ 421 switch (params->cipher) { 422 case WLAN_CIPHER_SUITE_WEP40: 423 case WLAN_CIPHER_SUITE_TKIP: 424 case WLAN_CIPHER_SUITE_WEP104: 425 if (WARN_ON_ONCE(fips_enabled)) 426 return -EINVAL; 427 break; 428 case WLAN_CIPHER_SUITE_CCMP: 429 case WLAN_CIPHER_SUITE_CCMP_256: 430 case WLAN_CIPHER_SUITE_AES_CMAC: 431 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 432 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 433 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 434 case WLAN_CIPHER_SUITE_GCMP: 435 case WLAN_CIPHER_SUITE_GCMP_256: 436 break; 437 default: 438 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 439 break; 440 } 441 442 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 443 params->key, params->seq_len, params->seq, 444 cs); 445 if (IS_ERR(key)) 446 return PTR_ERR(key); 447 448 if (pairwise) 449 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 450 451 if (params->mode == NL80211_KEY_NO_TX) 452 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 453 454 mutex_lock(&local->sta_mtx); 455 456 if (mac_addr) { 457 sta = sta_info_get_bss(sdata, mac_addr); 458 /* 459 * The ASSOC test makes sure the driver is ready to 460 * receive the key. When wpa_supplicant has roamed 461 * using FT, it attempts to set the key before 462 * association has completed, this rejects that attempt 463 * so it will set the key again after association. 464 * 465 * TODO: accept the key if we have a station entry and 466 * add it to the device after the station. 467 */ 468 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 469 ieee80211_key_free_unused(key); 470 err = -ENOENT; 471 goto out_unlock; 472 } 473 } 474 475 switch (sdata->vif.type) { 476 case NL80211_IFTYPE_STATION: 477 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 478 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 479 break; 480 case NL80211_IFTYPE_AP: 481 case NL80211_IFTYPE_AP_VLAN: 482 /* Keys without a station are used for TX only */ 483 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 484 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 485 break; 486 case NL80211_IFTYPE_ADHOC: 487 /* no MFP (yet) */ 488 break; 489 case NL80211_IFTYPE_MESH_POINT: 490 #ifdef CONFIG_MAC80211_MESH 491 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 492 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 493 break; 494 #endif 495 case NL80211_IFTYPE_WDS: 496 case NL80211_IFTYPE_MONITOR: 497 case NL80211_IFTYPE_P2P_DEVICE: 498 case NL80211_IFTYPE_NAN: 499 case NL80211_IFTYPE_UNSPECIFIED: 500 case NUM_NL80211_IFTYPES: 501 case NL80211_IFTYPE_P2P_CLIENT: 502 case NL80211_IFTYPE_P2P_GO: 503 case NL80211_IFTYPE_OCB: 504 /* shouldn't happen */ 505 WARN_ON_ONCE(1); 506 break; 507 } 508 509 if (sta) 510 sta->cipher_scheme = cs; 511 512 err = ieee80211_key_link(key, sdata, sta); 513 514 out_unlock: 515 mutex_unlock(&local->sta_mtx); 516 517 return err; 518 } 519 520 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 521 u8 key_idx, bool pairwise, const u8 *mac_addr) 522 { 523 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 524 struct ieee80211_local *local = sdata->local; 525 struct sta_info *sta; 526 struct ieee80211_key *key = NULL; 527 int ret; 528 529 mutex_lock(&local->sta_mtx); 530 mutex_lock(&local->key_mtx); 531 532 if (mac_addr) { 533 ret = -ENOENT; 534 535 sta = sta_info_get_bss(sdata, mac_addr); 536 if (!sta) 537 goto out_unlock; 538 539 if (pairwise) 540 key = key_mtx_dereference(local, sta->ptk[key_idx]); 541 else 542 key = key_mtx_dereference(local, sta->gtk[key_idx]); 543 } else 544 key = key_mtx_dereference(local, sdata->keys[key_idx]); 545 546 if (!key) { 547 ret = -ENOENT; 548 goto out_unlock; 549 } 550 551 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 552 553 ret = 0; 554 out_unlock: 555 mutex_unlock(&local->key_mtx); 556 mutex_unlock(&local->sta_mtx); 557 558 return ret; 559 } 560 561 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 562 u8 key_idx, bool pairwise, const u8 *mac_addr, 563 void *cookie, 564 void (*callback)(void *cookie, 565 struct key_params *params)) 566 { 567 struct ieee80211_sub_if_data *sdata; 568 struct sta_info *sta = NULL; 569 u8 seq[6] = {0}; 570 struct key_params params; 571 struct ieee80211_key *key = NULL; 572 u64 pn64; 573 u32 iv32; 574 u16 iv16; 575 int err = -ENOENT; 576 struct ieee80211_key_seq kseq = {}; 577 578 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 579 580 rcu_read_lock(); 581 582 if (mac_addr) { 583 sta = sta_info_get_bss(sdata, mac_addr); 584 if (!sta) 585 goto out; 586 587 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 588 key = rcu_dereference(sta->ptk[key_idx]); 589 else if (!pairwise && 590 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 591 NUM_DEFAULT_BEACON_KEYS) 592 key = rcu_dereference(sta->gtk[key_idx]); 593 } else 594 key = rcu_dereference(sdata->keys[key_idx]); 595 596 if (!key) 597 goto out; 598 599 memset(¶ms, 0, sizeof(params)); 600 601 params.cipher = key->conf.cipher; 602 603 switch (key->conf.cipher) { 604 case WLAN_CIPHER_SUITE_TKIP: 605 pn64 = atomic64_read(&key->conf.tx_pn); 606 iv32 = TKIP_PN_TO_IV32(pn64); 607 iv16 = TKIP_PN_TO_IV16(pn64); 608 609 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 610 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 611 drv_get_key_seq(sdata->local, key, &kseq); 612 iv32 = kseq.tkip.iv32; 613 iv16 = kseq.tkip.iv16; 614 } 615 616 seq[0] = iv16 & 0xff; 617 seq[1] = (iv16 >> 8) & 0xff; 618 seq[2] = iv32 & 0xff; 619 seq[3] = (iv32 >> 8) & 0xff; 620 seq[4] = (iv32 >> 16) & 0xff; 621 seq[5] = (iv32 >> 24) & 0xff; 622 params.seq = seq; 623 params.seq_len = 6; 624 break; 625 case WLAN_CIPHER_SUITE_CCMP: 626 case WLAN_CIPHER_SUITE_CCMP_256: 627 case WLAN_CIPHER_SUITE_AES_CMAC: 628 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 629 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 630 offsetof(typeof(kseq), aes_cmac)); 631 fallthrough; 632 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 633 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 634 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 635 offsetof(typeof(kseq), aes_gmac)); 636 fallthrough; 637 case WLAN_CIPHER_SUITE_GCMP: 638 case WLAN_CIPHER_SUITE_GCMP_256: 639 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 640 offsetof(typeof(kseq), gcmp)); 641 642 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 643 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 644 drv_get_key_seq(sdata->local, key, &kseq); 645 memcpy(seq, kseq.ccmp.pn, 6); 646 } else { 647 pn64 = atomic64_read(&key->conf.tx_pn); 648 seq[0] = pn64; 649 seq[1] = pn64 >> 8; 650 seq[2] = pn64 >> 16; 651 seq[3] = pn64 >> 24; 652 seq[4] = pn64 >> 32; 653 seq[5] = pn64 >> 40; 654 } 655 params.seq = seq; 656 params.seq_len = 6; 657 break; 658 default: 659 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 660 break; 661 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 662 break; 663 drv_get_key_seq(sdata->local, key, &kseq); 664 params.seq = kseq.hw.seq; 665 params.seq_len = kseq.hw.seq_len; 666 break; 667 } 668 669 params.key = key->conf.key; 670 params.key_len = key->conf.keylen; 671 672 callback(cookie, ¶ms); 673 err = 0; 674 675 out: 676 rcu_read_unlock(); 677 return err; 678 } 679 680 static int ieee80211_config_default_key(struct wiphy *wiphy, 681 struct net_device *dev, 682 u8 key_idx, bool uni, 683 bool multi) 684 { 685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 686 687 ieee80211_set_default_key(sdata, key_idx, uni, multi); 688 689 return 0; 690 } 691 692 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 693 struct net_device *dev, 694 u8 key_idx) 695 { 696 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 697 698 ieee80211_set_default_mgmt_key(sdata, key_idx); 699 700 return 0; 701 } 702 703 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 704 struct net_device *dev, 705 u8 key_idx) 706 { 707 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 708 709 ieee80211_set_default_beacon_key(sdata, key_idx); 710 711 return 0; 712 } 713 714 void sta_set_rate_info_tx(struct sta_info *sta, 715 const struct ieee80211_tx_rate *rate, 716 struct rate_info *rinfo) 717 { 718 rinfo->flags = 0; 719 if (rate->flags & IEEE80211_TX_RC_MCS) { 720 rinfo->flags |= RATE_INFO_FLAGS_MCS; 721 rinfo->mcs = rate->idx; 722 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 723 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 724 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 725 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 726 } else { 727 struct ieee80211_supported_band *sband; 728 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 729 u16 brate; 730 731 sband = ieee80211_get_sband(sta->sdata); 732 WARN_ON_ONCE(sband && !sband->bitrates); 733 if (sband && sband->bitrates) { 734 brate = sband->bitrates[rate->idx].bitrate; 735 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 736 } 737 } 738 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 739 rinfo->bw = RATE_INFO_BW_40; 740 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 741 rinfo->bw = RATE_INFO_BW_80; 742 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 743 rinfo->bw = RATE_INFO_BW_160; 744 else 745 rinfo->bw = RATE_INFO_BW_20; 746 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 747 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 748 } 749 750 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 751 int idx, u8 *mac, struct station_info *sinfo) 752 { 753 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 754 struct ieee80211_local *local = sdata->local; 755 struct sta_info *sta; 756 int ret = -ENOENT; 757 758 mutex_lock(&local->sta_mtx); 759 760 sta = sta_info_get_by_idx(sdata, idx); 761 if (sta) { 762 ret = 0; 763 memcpy(mac, sta->sta.addr, ETH_ALEN); 764 sta_set_sinfo(sta, sinfo, true); 765 } 766 767 mutex_unlock(&local->sta_mtx); 768 769 return ret; 770 } 771 772 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 773 int idx, struct survey_info *survey) 774 { 775 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 776 777 return drv_get_survey(local, idx, survey); 778 } 779 780 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 781 const u8 *mac, struct station_info *sinfo) 782 { 783 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 784 struct ieee80211_local *local = sdata->local; 785 struct sta_info *sta; 786 int ret = -ENOENT; 787 788 mutex_lock(&local->sta_mtx); 789 790 sta = sta_info_get_bss(sdata, mac); 791 if (sta) { 792 ret = 0; 793 sta_set_sinfo(sta, sinfo, true); 794 } 795 796 mutex_unlock(&local->sta_mtx); 797 798 return ret; 799 } 800 801 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 802 struct cfg80211_chan_def *chandef) 803 { 804 struct ieee80211_local *local = wiphy_priv(wiphy); 805 struct ieee80211_sub_if_data *sdata; 806 int ret = 0; 807 808 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 809 return 0; 810 811 mutex_lock(&local->mtx); 812 if (local->use_chanctx) { 813 sdata = rtnl_dereference(local->monitor_sdata); 814 if (sdata) { 815 ieee80211_vif_release_channel(sdata); 816 ret = ieee80211_vif_use_channel(sdata, chandef, 817 IEEE80211_CHANCTX_EXCLUSIVE); 818 } 819 } else if (local->open_count == local->monitors) { 820 local->_oper_chandef = *chandef; 821 ieee80211_hw_config(local, 0); 822 } 823 824 if (ret == 0) 825 local->monitor_chandef = *chandef; 826 mutex_unlock(&local->mtx); 827 828 return ret; 829 } 830 831 static int 832 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 833 const u8 *resp, size_t resp_len, 834 const struct ieee80211_csa_settings *csa, 835 const struct ieee80211_color_change_settings *cca) 836 { 837 struct probe_resp *new, *old; 838 839 if (!resp || !resp_len) 840 return 1; 841 842 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 843 844 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 845 if (!new) 846 return -ENOMEM; 847 848 new->len = resp_len; 849 memcpy(new->data, resp, resp_len); 850 851 if (csa) 852 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, 853 csa->n_counter_offsets_presp * 854 sizeof(new->cntdwn_counter_offsets[0])); 855 else if (cca) 856 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; 857 858 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 859 if (old) 860 kfree_rcu(old, rcu_head); 861 862 return 0; 863 } 864 865 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, 866 struct cfg80211_fils_discovery *params) 867 { 868 struct fils_discovery_data *new, *old = NULL; 869 struct ieee80211_fils_discovery *fd; 870 871 if (!params->tmpl || !params->tmpl_len) 872 return -EINVAL; 873 874 fd = &sdata->vif.bss_conf.fils_discovery; 875 fd->min_interval = params->min_interval; 876 fd->max_interval = params->max_interval; 877 878 old = sdata_dereference(sdata->u.ap.fils_discovery, 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.fils_discovery, new); 885 886 if (old) 887 kfree_rcu(old, rcu_head); 888 889 return 0; 890 } 891 892 static int 893 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, 894 struct cfg80211_unsol_bcast_probe_resp *params) 895 { 896 struct unsol_bcast_probe_resp_data *new, *old = NULL; 897 898 if (!params->tmpl || !params->tmpl_len) 899 return -EINVAL; 900 901 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata); 902 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL); 903 if (!new) 904 return -ENOMEM; 905 new->len = params->tmpl_len; 906 memcpy(new->data, params->tmpl, params->tmpl_len); 907 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new); 908 909 if (old) 910 kfree_rcu(old, rcu_head); 911 912 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval = 913 params->interval; 914 915 return 0; 916 } 917 918 static int ieee80211_set_ftm_responder_params( 919 struct ieee80211_sub_if_data *sdata, 920 const u8 *lci, size_t lci_len, 921 const u8 *civicloc, size_t civicloc_len) 922 { 923 struct ieee80211_ftm_responder_params *new, *old; 924 struct ieee80211_bss_conf *bss_conf; 925 u8 *pos; 926 int len; 927 928 if (!lci_len && !civicloc_len) 929 return 0; 930 931 bss_conf = &sdata->vif.bss_conf; 932 old = bss_conf->ftmr_params; 933 len = lci_len + civicloc_len; 934 935 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 936 if (!new) 937 return -ENOMEM; 938 939 pos = (u8 *)(new + 1); 940 if (lci_len) { 941 new->lci_len = lci_len; 942 new->lci = pos; 943 memcpy(pos, lci, lci_len); 944 pos += lci_len; 945 } 946 947 if (civicloc_len) { 948 new->civicloc_len = civicloc_len; 949 new->civicloc = pos; 950 memcpy(pos, civicloc, civicloc_len); 951 pos += civicloc_len; 952 } 953 954 bss_conf->ftmr_params = new; 955 kfree(old); 956 957 return 0; 958 } 959 960 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 961 struct cfg80211_beacon_data *params, 962 const struct ieee80211_csa_settings *csa, 963 const struct ieee80211_color_change_settings *cca) 964 { 965 struct beacon_data *new, *old; 966 int new_head_len, new_tail_len; 967 int size, err; 968 u32 changed = BSS_CHANGED_BEACON; 969 970 old = sdata_dereference(sdata->u.ap.beacon, sdata); 971 972 973 /* Need to have a beacon head if we don't have one yet */ 974 if (!params->head && !old) 975 return -EINVAL; 976 977 /* new or old head? */ 978 if (params->head) 979 new_head_len = params->head_len; 980 else 981 new_head_len = old->head_len; 982 983 /* new or old tail? */ 984 if (params->tail || !old) 985 /* params->tail_len will be zero for !params->tail */ 986 new_tail_len = params->tail_len; 987 else 988 new_tail_len = old->tail_len; 989 990 size = sizeof(*new) + new_head_len + new_tail_len; 991 992 new = kzalloc(size, GFP_KERNEL); 993 if (!new) 994 return -ENOMEM; 995 996 /* start filling the new info now */ 997 998 /* 999 * pointers go into the block we allocated, 1000 * memory is | beacon_data | head | tail | 1001 */ 1002 new->head = ((u8 *) new) + sizeof(*new); 1003 new->tail = new->head + new_head_len; 1004 new->head_len = new_head_len; 1005 new->tail_len = new_tail_len; 1006 1007 if (csa) { 1008 new->cntdwn_current_counter = csa->count; 1009 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, 1010 csa->n_counter_offsets_beacon * 1011 sizeof(new->cntdwn_counter_offsets[0])); 1012 } else if (cca) { 1013 new->cntdwn_current_counter = cca->count; 1014 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; 1015 } 1016 1017 /* copy in head */ 1018 if (params->head) 1019 memcpy(new->head, params->head, new_head_len); 1020 else 1021 memcpy(new->head, old->head, new_head_len); 1022 1023 /* copy in optional tail */ 1024 if (params->tail) 1025 memcpy(new->tail, params->tail, new_tail_len); 1026 else 1027 if (old) 1028 memcpy(new->tail, old->tail, new_tail_len); 1029 1030 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 1031 params->probe_resp_len, csa, cca); 1032 if (err < 0) { 1033 kfree(new); 1034 return err; 1035 } 1036 if (err == 0) 1037 changed |= BSS_CHANGED_AP_PROBE_RESP; 1038 1039 if (params->ftm_responder != -1) { 1040 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 1041 err = ieee80211_set_ftm_responder_params(sdata, 1042 params->lci, 1043 params->lci_len, 1044 params->civicloc, 1045 params->civicloc_len); 1046 1047 if (err < 0) { 1048 kfree(new); 1049 return err; 1050 } 1051 1052 changed |= BSS_CHANGED_FTM_RESPONDER; 1053 } 1054 1055 rcu_assign_pointer(sdata->u.ap.beacon, new); 1056 1057 if (old) 1058 kfree_rcu(old, rcu_head); 1059 1060 return changed; 1061 } 1062 1063 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 1064 struct cfg80211_ap_settings *params) 1065 { 1066 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1067 struct ieee80211_local *local = sdata->local; 1068 struct beacon_data *old; 1069 struct ieee80211_sub_if_data *vlan; 1070 u32 changed = BSS_CHANGED_BEACON_INT | 1071 BSS_CHANGED_BEACON_ENABLED | 1072 BSS_CHANGED_BEACON | 1073 BSS_CHANGED_SSID | 1074 BSS_CHANGED_P2P_PS | 1075 BSS_CHANGED_TXPOWER | 1076 BSS_CHANGED_TWT; 1077 int i, err; 1078 int prev_beacon_int; 1079 1080 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1081 if (old) 1082 return -EALREADY; 1083 1084 if (params->smps_mode != NL80211_SMPS_OFF) 1085 return -ENOTSUPP; 1086 1087 sdata->smps_mode = IEEE80211_SMPS_OFF; 1088 1089 sdata->needed_rx_chains = sdata->local->rx_chains; 1090 1091 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1092 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1093 1094 if (params->he_cap && params->he_oper) { 1095 sdata->vif.bss_conf.he_support = true; 1096 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1097 le32_get_bits(params->he_oper->he_oper_params, 1098 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1099 sdata->vif.bss_conf.frame_time_rts_th = 1100 le32_get_bits(params->he_oper->he_oper_params, 1101 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1102 changed |= BSS_CHANGED_HE_OBSS_PD; 1103 1104 if (params->he_bss_color.enabled) 1105 changed |= BSS_CHANGED_HE_BSS_COLOR; 1106 } 1107 1108 mutex_lock(&local->mtx); 1109 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1110 IEEE80211_CHANCTX_SHARED); 1111 if (!err) 1112 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1113 mutex_unlock(&local->mtx); 1114 if (err) { 1115 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1116 return err; 1117 } 1118 1119 /* 1120 * Apply control port protocol, this allows us to 1121 * not encrypt dynamic WEP control frames. 1122 */ 1123 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1124 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1125 sdata->control_port_over_nl80211 = 1126 params->crypto.control_port_over_nl80211; 1127 sdata->control_port_no_preauth = 1128 params->crypto.control_port_no_preauth; 1129 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1130 ¶ms->crypto, 1131 sdata->vif.type); 1132 1133 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1134 vlan->control_port_protocol = 1135 params->crypto.control_port_ethertype; 1136 vlan->control_port_no_encrypt = 1137 params->crypto.control_port_no_encrypt; 1138 vlan->control_port_over_nl80211 = 1139 params->crypto.control_port_over_nl80211; 1140 vlan->control_port_no_preauth = 1141 params->crypto.control_port_no_preauth; 1142 vlan->encrypt_headroom = 1143 ieee80211_cs_headroom(sdata->local, 1144 ¶ms->crypto, 1145 vlan->vif.type); 1146 } 1147 1148 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1149 sdata->vif.bss_conf.enable_beacon = true; 1150 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1151 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1152 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd; 1153 sdata->vif.bss_conf.he_bss_color = params->he_bss_color; 1154 sdata->vif.bss_conf.s1g = params->chandef.chan->band == 1155 NL80211_BAND_S1GHZ; 1156 1157 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1158 if (params->ssid_len) 1159 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1160 params->ssid_len); 1161 sdata->vif.bss_conf.hidden_ssid = 1162 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1163 1164 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1165 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1166 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1167 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1168 if (params->p2p_opp_ps) 1169 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1170 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1171 1172 sdata->beacon_rate_set = false; 1173 if (wiphy_ext_feature_isset(local->hw.wiphy, 1174 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1175 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1176 sdata->beacon_rateidx_mask[i] = 1177 params->beacon_rate.control[i].legacy; 1178 if (sdata->beacon_rateidx_mask[i]) 1179 sdata->beacon_rate_set = true; 1180 } 1181 } 1182 1183 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) 1184 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate; 1185 1186 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL); 1187 if (err < 0) 1188 goto error; 1189 changed |= err; 1190 1191 if (params->fils_discovery.max_interval) { 1192 err = ieee80211_set_fils_discovery(sdata, 1193 ¶ms->fils_discovery); 1194 if (err < 0) 1195 goto error; 1196 changed |= BSS_CHANGED_FILS_DISCOVERY; 1197 } 1198 1199 if (params->unsol_bcast_probe_resp.interval) { 1200 err = ieee80211_set_unsol_bcast_probe_resp(sdata, 1201 ¶ms->unsol_bcast_probe_resp); 1202 if (err < 0) 1203 goto error; 1204 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; 1205 } 1206 1207 err = drv_start_ap(sdata->local, sdata); 1208 if (err) { 1209 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1210 1211 if (old) 1212 kfree_rcu(old, rcu_head); 1213 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1214 goto error; 1215 } 1216 1217 ieee80211_recalc_dtim(local, sdata); 1218 ieee80211_bss_info_change_notify(sdata, changed); 1219 1220 netif_carrier_on(dev); 1221 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1222 netif_carrier_on(vlan->dev); 1223 1224 return 0; 1225 1226 error: 1227 ieee80211_vif_release_channel(sdata); 1228 return err; 1229 } 1230 1231 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1232 struct cfg80211_beacon_data *params) 1233 { 1234 struct ieee80211_sub_if_data *sdata; 1235 struct beacon_data *old; 1236 int err; 1237 1238 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1239 sdata_assert_lock(sdata); 1240 1241 /* don't allow changing the beacon while a countdown is in place - offset 1242 * of channel switch counter may change 1243 */ 1244 if (sdata->vif.csa_active || sdata->vif.color_change_active) 1245 return -EBUSY; 1246 1247 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1248 if (!old) 1249 return -ENOENT; 1250 1251 err = ieee80211_assign_beacon(sdata, params, NULL, NULL); 1252 if (err < 0) 1253 return err; 1254 ieee80211_bss_info_change_notify(sdata, err); 1255 return 0; 1256 } 1257 1258 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1259 { 1260 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1261 struct ieee80211_sub_if_data *vlan; 1262 struct ieee80211_local *local = sdata->local; 1263 struct beacon_data *old_beacon; 1264 struct probe_resp *old_probe_resp; 1265 struct fils_discovery_data *old_fils_discovery; 1266 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; 1267 struct cfg80211_chan_def chandef; 1268 1269 sdata_assert_lock(sdata); 1270 1271 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1272 if (!old_beacon) 1273 return -ENOENT; 1274 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1275 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery, 1276 sdata); 1277 old_unsol_bcast_probe_resp = 1278 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, 1279 sdata); 1280 1281 /* abort any running channel switch */ 1282 mutex_lock(&local->mtx); 1283 sdata->vif.csa_active = false; 1284 if (sdata->csa_block_tx) { 1285 ieee80211_wake_vif_queues(local, sdata, 1286 IEEE80211_QUEUE_STOP_REASON_CSA); 1287 sdata->csa_block_tx = false; 1288 } 1289 1290 mutex_unlock(&local->mtx); 1291 1292 kfree(sdata->u.ap.next_beacon); 1293 sdata->u.ap.next_beacon = NULL; 1294 1295 /* turn off carrier for this interface and dependent VLANs */ 1296 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1297 netif_carrier_off(vlan->dev); 1298 netif_carrier_off(dev); 1299 1300 /* remove beacon and probe response */ 1301 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1302 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1303 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL); 1304 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL); 1305 kfree_rcu(old_beacon, rcu_head); 1306 if (old_probe_resp) 1307 kfree_rcu(old_probe_resp, rcu_head); 1308 if (old_fils_discovery) 1309 kfree_rcu(old_fils_discovery, rcu_head); 1310 if (old_unsol_bcast_probe_resp) 1311 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); 1312 1313 kfree(sdata->vif.bss_conf.ftmr_params); 1314 sdata->vif.bss_conf.ftmr_params = NULL; 1315 1316 __sta_info_flush(sdata, true); 1317 ieee80211_free_keys(sdata, true); 1318 1319 sdata->vif.bss_conf.enable_beacon = false; 1320 sdata->beacon_rate_set = false; 1321 sdata->vif.bss_conf.ssid_len = 0; 1322 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1323 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1324 1325 if (sdata->wdev.cac_started) { 1326 chandef = sdata->vif.bss_conf.chandef; 1327 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1328 cfg80211_cac_event(sdata->dev, &chandef, 1329 NL80211_RADAR_CAC_ABORTED, 1330 GFP_KERNEL); 1331 } 1332 1333 drv_stop_ap(sdata->local, sdata); 1334 1335 /* free all potentially still buffered bcast frames */ 1336 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1337 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1338 1339 mutex_lock(&local->mtx); 1340 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1341 ieee80211_vif_release_channel(sdata); 1342 mutex_unlock(&local->mtx); 1343 1344 return 0; 1345 } 1346 1347 static int sta_apply_auth_flags(struct ieee80211_local *local, 1348 struct sta_info *sta, 1349 u32 mask, u32 set) 1350 { 1351 int ret; 1352 1353 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1354 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1355 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1356 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 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 /* 1365 * When peer becomes associated, init rate control as 1366 * well. Some drivers require rate control initialized 1367 * before drv_sta_state() is called. 1368 */ 1369 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1370 rate_control_rate_init(sta); 1371 1372 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1373 if (ret) 1374 return ret; 1375 } 1376 1377 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1378 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1379 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1380 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1381 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1382 else 1383 ret = 0; 1384 if (ret) 1385 return ret; 1386 } 1387 1388 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1389 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1390 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1391 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1392 if (ret) 1393 return ret; 1394 } 1395 1396 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1397 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1398 test_sta_flag(sta, WLAN_STA_AUTH)) { 1399 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1400 if (ret) 1401 return ret; 1402 } 1403 1404 return 0; 1405 } 1406 1407 static void sta_apply_mesh_params(struct ieee80211_local *local, 1408 struct sta_info *sta, 1409 struct station_parameters *params) 1410 { 1411 #ifdef CONFIG_MAC80211_MESH 1412 struct ieee80211_sub_if_data *sdata = sta->sdata; 1413 u32 changed = 0; 1414 1415 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1416 switch (params->plink_state) { 1417 case NL80211_PLINK_ESTAB: 1418 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1419 changed = mesh_plink_inc_estab_count(sdata); 1420 sta->mesh->plink_state = params->plink_state; 1421 sta->mesh->aid = params->peer_aid; 1422 1423 ieee80211_mps_sta_status_update(sta); 1424 changed |= ieee80211_mps_set_sta_local_pm(sta, 1425 sdata->u.mesh.mshcfg.power_mode); 1426 1427 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1428 /* init at low value */ 1429 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1430 1431 break; 1432 case NL80211_PLINK_LISTEN: 1433 case NL80211_PLINK_BLOCKED: 1434 case NL80211_PLINK_OPN_SNT: 1435 case NL80211_PLINK_OPN_RCVD: 1436 case NL80211_PLINK_CNF_RCVD: 1437 case NL80211_PLINK_HOLDING: 1438 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1439 changed = mesh_plink_dec_estab_count(sdata); 1440 sta->mesh->plink_state = params->plink_state; 1441 1442 ieee80211_mps_sta_status_update(sta); 1443 changed |= ieee80211_mps_set_sta_local_pm(sta, 1444 NL80211_MESH_POWER_UNKNOWN); 1445 break; 1446 default: 1447 /* nothing */ 1448 break; 1449 } 1450 } 1451 1452 switch (params->plink_action) { 1453 case NL80211_PLINK_ACTION_NO_ACTION: 1454 /* nothing */ 1455 break; 1456 case NL80211_PLINK_ACTION_OPEN: 1457 changed |= mesh_plink_open(sta); 1458 break; 1459 case NL80211_PLINK_ACTION_BLOCK: 1460 changed |= mesh_plink_block(sta); 1461 break; 1462 } 1463 1464 if (params->local_pm) 1465 changed |= ieee80211_mps_set_sta_local_pm(sta, 1466 params->local_pm); 1467 1468 ieee80211_mbss_info_change_notify(sdata, changed); 1469 #endif 1470 } 1471 1472 static void sta_apply_airtime_params(struct ieee80211_local *local, 1473 struct sta_info *sta, 1474 struct station_parameters *params) 1475 { 1476 u8 ac; 1477 1478 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1479 struct airtime_sched_info *air_sched = &local->airtime[ac]; 1480 struct airtime_info *air_info = &sta->airtime[ac]; 1481 struct txq_info *txqi; 1482 u8 tid; 1483 1484 spin_lock_bh(&air_sched->lock); 1485 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { 1486 if (air_info->weight == params->airtime_weight || 1487 !sta->sta.txq[tid] || 1488 ac != ieee80211_ac_from_tid(tid)) 1489 continue; 1490 1491 airtime_weight_set(air_info, params->airtime_weight); 1492 1493 txqi = to_txq_info(sta->sta.txq[tid]); 1494 if (RB_EMPTY_NODE(&txqi->schedule_order)) 1495 continue; 1496 1497 ieee80211_update_airtime_weight(local, air_sched, 1498 0, true); 1499 } 1500 spin_unlock_bh(&air_sched->lock); 1501 } 1502 } 1503 1504 static int sta_apply_parameters(struct ieee80211_local *local, 1505 struct sta_info *sta, 1506 struct station_parameters *params) 1507 { 1508 int ret = 0; 1509 struct ieee80211_supported_band *sband; 1510 struct ieee80211_sub_if_data *sdata = sta->sdata; 1511 u32 mask, set; 1512 1513 sband = ieee80211_get_sband(sdata); 1514 if (!sband) 1515 return -EINVAL; 1516 1517 mask = params->sta_flags_mask; 1518 set = params->sta_flags_set; 1519 1520 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1521 /* 1522 * In mesh mode, ASSOCIATED isn't part of the nl80211 1523 * API but must follow AUTHENTICATED for driver state. 1524 */ 1525 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1526 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1527 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1528 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1529 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1530 /* 1531 * TDLS -- everything follows authorized, but 1532 * only becoming authorized is possible, not 1533 * going back 1534 */ 1535 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1536 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1537 BIT(NL80211_STA_FLAG_ASSOCIATED); 1538 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1539 BIT(NL80211_STA_FLAG_ASSOCIATED); 1540 } 1541 } 1542 1543 if (mask & BIT(NL80211_STA_FLAG_WME) && 1544 local->hw.queues >= IEEE80211_NUM_ACS) 1545 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1546 1547 /* auth flags will be set later for TDLS, 1548 * and for unassociated stations that move to associated */ 1549 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1550 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1551 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1552 ret = sta_apply_auth_flags(local, sta, mask, set); 1553 if (ret) 1554 return ret; 1555 } 1556 1557 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1558 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1559 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1560 else 1561 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1562 } 1563 1564 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1565 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1566 if (set & BIT(NL80211_STA_FLAG_MFP)) 1567 set_sta_flag(sta, WLAN_STA_MFP); 1568 else 1569 clear_sta_flag(sta, WLAN_STA_MFP); 1570 } 1571 1572 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1573 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1574 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1575 else 1576 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1577 } 1578 1579 /* mark TDLS channel switch support, if the AP allows it */ 1580 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1581 !sdata->u.mgd.tdls_chan_switch_prohibited && 1582 params->ext_capab_len >= 4 && 1583 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1584 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1585 1586 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1587 !sdata->u.mgd.tdls_wider_bw_prohibited && 1588 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1589 params->ext_capab_len >= 8 && 1590 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1591 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1592 1593 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1594 sta->sta.uapsd_queues = params->uapsd_queues; 1595 sta->sta.max_sp = params->max_sp; 1596 } 1597 1598 /* The sender might not have sent the last bit, consider it to be 0 */ 1599 if (params->ext_capab_len >= 8) { 1600 u8 val = (params->ext_capab[7] & 1601 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1602 1603 /* we did get all the bits, take the MSB as well */ 1604 if (params->ext_capab_len >= 9) { 1605 u8 val_msb = params->ext_capab[8] & 1606 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1607 val_msb <<= 1; 1608 val |= val_msb; 1609 } 1610 1611 switch (val) { 1612 case 1: 1613 sta->sta.max_amsdu_subframes = 32; 1614 break; 1615 case 2: 1616 sta->sta.max_amsdu_subframes = 16; 1617 break; 1618 case 3: 1619 sta->sta.max_amsdu_subframes = 8; 1620 break; 1621 default: 1622 sta->sta.max_amsdu_subframes = 0; 1623 } 1624 } 1625 1626 /* 1627 * cfg80211 validates this (1-2007) and allows setting the AID 1628 * only when creating a new station entry 1629 */ 1630 if (params->aid) 1631 sta->sta.aid = params->aid; 1632 1633 /* 1634 * Some of the following updates would be racy if called on an 1635 * existing station, via ieee80211_change_station(). However, 1636 * all such changes are rejected by cfg80211 except for updates 1637 * changing the supported rates on an existing but not yet used 1638 * TDLS peer. 1639 */ 1640 1641 if (params->listen_interval >= 0) 1642 sta->listen_interval = params->listen_interval; 1643 1644 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1645 sta->sta.txpwr.type = params->txpwr.type; 1646 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1647 sta->sta.txpwr.power = params->txpwr.power; 1648 ret = drv_sta_set_txpwr(local, sdata, sta); 1649 if (ret) 1650 return ret; 1651 } 1652 1653 if (params->supported_rates && params->supported_rates_len) { 1654 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1655 sband, params->supported_rates, 1656 params->supported_rates_len, 1657 &sta->sta.supp_rates[sband->band]); 1658 } 1659 1660 if (params->ht_capa) 1661 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1662 params->ht_capa, sta); 1663 1664 /* VHT can override some HT caps such as the A-MSDU max length */ 1665 if (params->vht_capa) 1666 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1667 params->vht_capa, sta); 1668 1669 if (params->he_capa) 1670 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1671 (void *)params->he_capa, 1672 params->he_capa_len, 1673 (void *)params->he_6ghz_capa, 1674 sta); 1675 1676 if (params->opmode_notif_used) { 1677 /* returned value is only needed for rc update, but the 1678 * rc isn't initialized here yet, so ignore it 1679 */ 1680 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1681 sband->band); 1682 } 1683 1684 if (params->support_p2p_ps >= 0) 1685 sta->sta.support_p2p_ps = params->support_p2p_ps; 1686 1687 if (ieee80211_vif_is_mesh(&sdata->vif)) 1688 sta_apply_mesh_params(local, sta, params); 1689 1690 if (params->airtime_weight) 1691 sta_apply_airtime_params(local, sta, params); 1692 1693 1694 /* set the STA state after all sta info from usermode has been set */ 1695 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1696 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1697 ret = sta_apply_auth_flags(local, sta, mask, set); 1698 if (ret) 1699 return ret; 1700 } 1701 1702 return 0; 1703 } 1704 1705 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1706 const u8 *mac, 1707 struct station_parameters *params) 1708 { 1709 struct ieee80211_local *local = wiphy_priv(wiphy); 1710 struct sta_info *sta; 1711 struct ieee80211_sub_if_data *sdata; 1712 int err; 1713 1714 if (params->vlan) { 1715 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1716 1717 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1718 sdata->vif.type != NL80211_IFTYPE_AP) 1719 return -EINVAL; 1720 } else 1721 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1722 1723 if (ether_addr_equal(mac, sdata->vif.addr)) 1724 return -EINVAL; 1725 1726 if (!is_valid_ether_addr(mac)) 1727 return -EINVAL; 1728 1729 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1730 sdata->vif.type == NL80211_IFTYPE_STATION && 1731 !sdata->u.mgd.associated) 1732 return -EINVAL; 1733 1734 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1735 if (!sta) 1736 return -ENOMEM; 1737 1738 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1739 sta->sta.tdls = true; 1740 1741 err = sta_apply_parameters(local, sta, params); 1742 if (err) { 1743 sta_info_free(local, sta); 1744 return err; 1745 } 1746 1747 /* 1748 * for TDLS and for unassociated station, rate control should be 1749 * initialized only when rates are known and station is marked 1750 * authorized/associated 1751 */ 1752 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1753 test_sta_flag(sta, WLAN_STA_ASSOC)) 1754 rate_control_rate_init(sta); 1755 1756 return sta_info_insert(sta); 1757 } 1758 1759 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1760 struct station_del_parameters *params) 1761 { 1762 struct ieee80211_sub_if_data *sdata; 1763 1764 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1765 1766 if (params->mac) 1767 return sta_info_destroy_addr_bss(sdata, params->mac); 1768 1769 sta_info_flush(sdata); 1770 return 0; 1771 } 1772 1773 static int ieee80211_change_station(struct wiphy *wiphy, 1774 struct net_device *dev, const u8 *mac, 1775 struct station_parameters *params) 1776 { 1777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1778 struct ieee80211_local *local = wiphy_priv(wiphy); 1779 struct sta_info *sta; 1780 struct ieee80211_sub_if_data *vlansdata; 1781 enum cfg80211_station_type statype; 1782 int err; 1783 1784 mutex_lock(&local->sta_mtx); 1785 1786 sta = sta_info_get_bss(sdata, mac); 1787 if (!sta) { 1788 err = -ENOENT; 1789 goto out_err; 1790 } 1791 1792 switch (sdata->vif.type) { 1793 case NL80211_IFTYPE_MESH_POINT: 1794 if (sdata->u.mesh.user_mpm) 1795 statype = CFG80211_STA_MESH_PEER_USER; 1796 else 1797 statype = CFG80211_STA_MESH_PEER_KERNEL; 1798 break; 1799 case NL80211_IFTYPE_ADHOC: 1800 statype = CFG80211_STA_IBSS; 1801 break; 1802 case NL80211_IFTYPE_STATION: 1803 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1804 statype = CFG80211_STA_AP_STA; 1805 break; 1806 } 1807 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1808 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1809 else 1810 statype = CFG80211_STA_TDLS_PEER_SETUP; 1811 break; 1812 case NL80211_IFTYPE_AP: 1813 case NL80211_IFTYPE_AP_VLAN: 1814 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1815 statype = CFG80211_STA_AP_CLIENT; 1816 else 1817 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1818 break; 1819 default: 1820 err = -EOPNOTSUPP; 1821 goto out_err; 1822 } 1823 1824 err = cfg80211_check_station_change(wiphy, params, statype); 1825 if (err) 1826 goto out_err; 1827 1828 if (params->vlan && params->vlan != sta->sdata->dev) { 1829 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1830 1831 if (params->vlan->ieee80211_ptr->use_4addr) { 1832 if (vlansdata->u.vlan.sta) { 1833 err = -EBUSY; 1834 goto out_err; 1835 } 1836 1837 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1838 __ieee80211_check_fast_rx_iface(vlansdata); 1839 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true); 1840 } 1841 1842 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1843 sta->sdata->u.vlan.sta) { 1844 ieee80211_clear_fast_rx(sta); 1845 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1846 } 1847 1848 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1849 ieee80211_vif_dec_num_mcast(sta->sdata); 1850 1851 sta->sdata = vlansdata; 1852 ieee80211_check_fast_xmit(sta); 1853 1854 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1855 ieee80211_vif_inc_num_mcast(sta->sdata); 1856 cfg80211_send_layer2_update(sta->sdata->dev, 1857 sta->sta.addr); 1858 } 1859 } 1860 1861 err = sta_apply_parameters(local, sta, params); 1862 if (err) 1863 goto out_err; 1864 1865 mutex_unlock(&local->sta_mtx); 1866 1867 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1868 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1869 ieee80211_recalc_ps(local); 1870 ieee80211_recalc_ps_vif(sdata); 1871 } 1872 1873 return 0; 1874 out_err: 1875 mutex_unlock(&local->sta_mtx); 1876 return err; 1877 } 1878 1879 #ifdef CONFIG_MAC80211_MESH 1880 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1881 const u8 *dst, const u8 *next_hop) 1882 { 1883 struct ieee80211_sub_if_data *sdata; 1884 struct mesh_path *mpath; 1885 struct sta_info *sta; 1886 1887 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1888 1889 rcu_read_lock(); 1890 sta = sta_info_get(sdata, next_hop); 1891 if (!sta) { 1892 rcu_read_unlock(); 1893 return -ENOENT; 1894 } 1895 1896 mpath = mesh_path_add(sdata, dst); 1897 if (IS_ERR(mpath)) { 1898 rcu_read_unlock(); 1899 return PTR_ERR(mpath); 1900 } 1901 1902 mesh_path_fix_nexthop(mpath, sta); 1903 1904 rcu_read_unlock(); 1905 return 0; 1906 } 1907 1908 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1909 const u8 *dst) 1910 { 1911 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1912 1913 if (dst) 1914 return mesh_path_del(sdata, dst); 1915 1916 mesh_path_flush_by_iface(sdata); 1917 return 0; 1918 } 1919 1920 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1921 const u8 *dst, const u8 *next_hop) 1922 { 1923 struct ieee80211_sub_if_data *sdata; 1924 struct mesh_path *mpath; 1925 struct sta_info *sta; 1926 1927 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1928 1929 rcu_read_lock(); 1930 1931 sta = sta_info_get(sdata, next_hop); 1932 if (!sta) { 1933 rcu_read_unlock(); 1934 return -ENOENT; 1935 } 1936 1937 mpath = mesh_path_lookup(sdata, dst); 1938 if (!mpath) { 1939 rcu_read_unlock(); 1940 return -ENOENT; 1941 } 1942 1943 mesh_path_fix_nexthop(mpath, sta); 1944 1945 rcu_read_unlock(); 1946 return 0; 1947 } 1948 1949 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1950 struct mpath_info *pinfo) 1951 { 1952 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1953 1954 if (next_hop_sta) 1955 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1956 else 1957 eth_zero_addr(next_hop); 1958 1959 memset(pinfo, 0, sizeof(*pinfo)); 1960 1961 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1962 1963 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1964 MPATH_INFO_SN | 1965 MPATH_INFO_METRIC | 1966 MPATH_INFO_EXPTIME | 1967 MPATH_INFO_DISCOVERY_TIMEOUT | 1968 MPATH_INFO_DISCOVERY_RETRIES | 1969 MPATH_INFO_FLAGS | 1970 MPATH_INFO_HOP_COUNT | 1971 MPATH_INFO_PATH_CHANGE; 1972 1973 pinfo->frame_qlen = mpath->frame_queue.qlen; 1974 pinfo->sn = mpath->sn; 1975 pinfo->metric = mpath->metric; 1976 if (time_before(jiffies, mpath->exp_time)) 1977 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1978 pinfo->discovery_timeout = 1979 jiffies_to_msecs(mpath->discovery_timeout); 1980 pinfo->discovery_retries = mpath->discovery_retries; 1981 if (mpath->flags & MESH_PATH_ACTIVE) 1982 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1983 if (mpath->flags & MESH_PATH_RESOLVING) 1984 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1985 if (mpath->flags & MESH_PATH_SN_VALID) 1986 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1987 if (mpath->flags & MESH_PATH_FIXED) 1988 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1989 if (mpath->flags & MESH_PATH_RESOLVED) 1990 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1991 pinfo->hop_count = mpath->hop_count; 1992 pinfo->path_change_count = mpath->path_change_count; 1993 } 1994 1995 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1996 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1997 1998 { 1999 struct ieee80211_sub_if_data *sdata; 2000 struct mesh_path *mpath; 2001 2002 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2003 2004 rcu_read_lock(); 2005 mpath = mesh_path_lookup(sdata, dst); 2006 if (!mpath) { 2007 rcu_read_unlock(); 2008 return -ENOENT; 2009 } 2010 memcpy(dst, mpath->dst, ETH_ALEN); 2011 mpath_set_pinfo(mpath, next_hop, pinfo); 2012 rcu_read_unlock(); 2013 return 0; 2014 } 2015 2016 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 2017 int idx, u8 *dst, u8 *next_hop, 2018 struct mpath_info *pinfo) 2019 { 2020 struct ieee80211_sub_if_data *sdata; 2021 struct mesh_path *mpath; 2022 2023 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2024 2025 rcu_read_lock(); 2026 mpath = mesh_path_lookup_by_idx(sdata, idx); 2027 if (!mpath) { 2028 rcu_read_unlock(); 2029 return -ENOENT; 2030 } 2031 memcpy(dst, mpath->dst, ETH_ALEN); 2032 mpath_set_pinfo(mpath, next_hop, pinfo); 2033 rcu_read_unlock(); 2034 return 0; 2035 } 2036 2037 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 2038 struct mpath_info *pinfo) 2039 { 2040 memset(pinfo, 0, sizeof(*pinfo)); 2041 memcpy(mpp, mpath->mpp, ETH_ALEN); 2042 2043 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 2044 } 2045 2046 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 2047 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 2048 2049 { 2050 struct ieee80211_sub_if_data *sdata; 2051 struct mesh_path *mpath; 2052 2053 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2054 2055 rcu_read_lock(); 2056 mpath = mpp_path_lookup(sdata, dst); 2057 if (!mpath) { 2058 rcu_read_unlock(); 2059 return -ENOENT; 2060 } 2061 memcpy(dst, mpath->dst, ETH_ALEN); 2062 mpp_set_pinfo(mpath, mpp, pinfo); 2063 rcu_read_unlock(); 2064 return 0; 2065 } 2066 2067 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 2068 int idx, u8 *dst, u8 *mpp, 2069 struct mpath_info *pinfo) 2070 { 2071 struct ieee80211_sub_if_data *sdata; 2072 struct mesh_path *mpath; 2073 2074 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2075 2076 rcu_read_lock(); 2077 mpath = mpp_path_lookup_by_idx(sdata, idx); 2078 if (!mpath) { 2079 rcu_read_unlock(); 2080 return -ENOENT; 2081 } 2082 memcpy(dst, mpath->dst, ETH_ALEN); 2083 mpp_set_pinfo(mpath, mpp, pinfo); 2084 rcu_read_unlock(); 2085 return 0; 2086 } 2087 2088 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 2089 struct net_device *dev, 2090 struct mesh_config *conf) 2091 { 2092 struct ieee80211_sub_if_data *sdata; 2093 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2094 2095 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 2096 return 0; 2097 } 2098 2099 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 2100 { 2101 return (mask >> (parm-1)) & 0x1; 2102 } 2103 2104 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 2105 const struct mesh_setup *setup) 2106 { 2107 u8 *new_ie; 2108 const u8 *old_ie; 2109 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 2110 struct ieee80211_sub_if_data, u.mesh); 2111 int i; 2112 2113 /* allocate information elements */ 2114 new_ie = NULL; 2115 old_ie = ifmsh->ie; 2116 2117 if (setup->ie_len) { 2118 new_ie = kmemdup(setup->ie, setup->ie_len, 2119 GFP_KERNEL); 2120 if (!new_ie) 2121 return -ENOMEM; 2122 } 2123 ifmsh->ie_len = setup->ie_len; 2124 ifmsh->ie = new_ie; 2125 kfree(old_ie); 2126 2127 /* now copy the rest of the setup parameters */ 2128 ifmsh->mesh_id_len = setup->mesh_id_len; 2129 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 2130 ifmsh->mesh_sp_id = setup->sync_method; 2131 ifmsh->mesh_pp_id = setup->path_sel_proto; 2132 ifmsh->mesh_pm_id = setup->path_metric; 2133 ifmsh->user_mpm = setup->user_mpm; 2134 ifmsh->mesh_auth_id = setup->auth_id; 2135 ifmsh->security = IEEE80211_MESH_SEC_NONE; 2136 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 2137 if (setup->is_authenticated) 2138 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 2139 if (setup->is_secure) 2140 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 2141 2142 /* mcast rate setting in Mesh Node */ 2143 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2144 sizeof(setup->mcast_rate)); 2145 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2146 2147 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2148 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2149 2150 sdata->beacon_rate_set = false; 2151 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2152 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2153 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2154 sdata->beacon_rateidx_mask[i] = 2155 setup->beacon_rate.control[i].legacy; 2156 if (sdata->beacon_rateidx_mask[i]) 2157 sdata->beacon_rate_set = true; 2158 } 2159 } 2160 2161 return 0; 2162 } 2163 2164 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2165 struct net_device *dev, u32 mask, 2166 const struct mesh_config *nconf) 2167 { 2168 struct mesh_config *conf; 2169 struct ieee80211_sub_if_data *sdata; 2170 struct ieee80211_if_mesh *ifmsh; 2171 2172 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2173 ifmsh = &sdata->u.mesh; 2174 2175 /* Set the config options which we are interested in setting */ 2176 conf = &(sdata->u.mesh.mshcfg); 2177 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2178 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2179 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2180 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2181 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2182 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2183 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2184 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2185 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2186 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2187 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2188 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2189 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2190 conf->element_ttl = nconf->element_ttl; 2191 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2192 if (ifmsh->user_mpm) 2193 return -EBUSY; 2194 conf->auto_open_plinks = nconf->auto_open_plinks; 2195 } 2196 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2197 conf->dot11MeshNbrOffsetMaxNeighbor = 2198 nconf->dot11MeshNbrOffsetMaxNeighbor; 2199 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2200 conf->dot11MeshHWMPmaxPREQretries = 2201 nconf->dot11MeshHWMPmaxPREQretries; 2202 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2203 conf->path_refresh_time = nconf->path_refresh_time; 2204 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2205 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2206 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2207 conf->dot11MeshHWMPactivePathTimeout = 2208 nconf->dot11MeshHWMPactivePathTimeout; 2209 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2210 conf->dot11MeshHWMPpreqMinInterval = 2211 nconf->dot11MeshHWMPpreqMinInterval; 2212 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2213 conf->dot11MeshHWMPperrMinInterval = 2214 nconf->dot11MeshHWMPperrMinInterval; 2215 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2216 mask)) 2217 conf->dot11MeshHWMPnetDiameterTraversalTime = 2218 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2219 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2220 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2221 ieee80211_mesh_root_setup(ifmsh); 2222 } 2223 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2224 /* our current gate announcement implementation rides on root 2225 * announcements, so require this ifmsh to also be a root node 2226 * */ 2227 if (nconf->dot11MeshGateAnnouncementProtocol && 2228 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2229 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2230 ieee80211_mesh_root_setup(ifmsh); 2231 } 2232 conf->dot11MeshGateAnnouncementProtocol = 2233 nconf->dot11MeshGateAnnouncementProtocol; 2234 } 2235 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2236 conf->dot11MeshHWMPRannInterval = 2237 nconf->dot11MeshHWMPRannInterval; 2238 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2239 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2240 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2241 /* our RSSI threshold implementation is supported only for 2242 * devices that report signal in dBm. 2243 */ 2244 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2245 return -ENOTSUPP; 2246 conf->rssi_threshold = nconf->rssi_threshold; 2247 } 2248 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2249 conf->ht_opmode = nconf->ht_opmode; 2250 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2251 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2252 } 2253 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2254 conf->dot11MeshHWMPactivePathToRootTimeout = 2255 nconf->dot11MeshHWMPactivePathToRootTimeout; 2256 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2257 conf->dot11MeshHWMProotInterval = 2258 nconf->dot11MeshHWMProotInterval; 2259 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2260 conf->dot11MeshHWMPconfirmationInterval = 2261 nconf->dot11MeshHWMPconfirmationInterval; 2262 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2263 conf->power_mode = nconf->power_mode; 2264 ieee80211_mps_local_status_update(sdata); 2265 } 2266 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2267 conf->dot11MeshAwakeWindowDuration = 2268 nconf->dot11MeshAwakeWindowDuration; 2269 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2270 conf->plink_timeout = nconf->plink_timeout; 2271 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2272 conf->dot11MeshConnectedToMeshGate = 2273 nconf->dot11MeshConnectedToMeshGate; 2274 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2275 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2276 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2277 conf->dot11MeshConnectedToAuthServer = 2278 nconf->dot11MeshConnectedToAuthServer; 2279 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2280 return 0; 2281 } 2282 2283 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2284 const struct mesh_config *conf, 2285 const struct mesh_setup *setup) 2286 { 2287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2288 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2289 int err; 2290 2291 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2292 err = copy_mesh_setup(ifmsh, setup); 2293 if (err) 2294 return err; 2295 2296 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2297 2298 /* can mesh use other SMPS modes? */ 2299 sdata->smps_mode = IEEE80211_SMPS_OFF; 2300 sdata->needed_rx_chains = sdata->local->rx_chains; 2301 2302 mutex_lock(&sdata->local->mtx); 2303 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2304 IEEE80211_CHANCTX_SHARED); 2305 mutex_unlock(&sdata->local->mtx); 2306 if (err) 2307 return err; 2308 2309 return ieee80211_start_mesh(sdata); 2310 } 2311 2312 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2313 { 2314 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2315 2316 ieee80211_stop_mesh(sdata); 2317 mutex_lock(&sdata->local->mtx); 2318 ieee80211_vif_release_channel(sdata); 2319 kfree(sdata->u.mesh.ie); 2320 mutex_unlock(&sdata->local->mtx); 2321 2322 return 0; 2323 } 2324 #endif 2325 2326 static int ieee80211_change_bss(struct wiphy *wiphy, 2327 struct net_device *dev, 2328 struct bss_parameters *params) 2329 { 2330 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2331 struct ieee80211_supported_band *sband; 2332 u32 changed = 0; 2333 2334 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2335 return -ENOENT; 2336 2337 sband = ieee80211_get_sband(sdata); 2338 if (!sband) 2339 return -EINVAL; 2340 2341 if (params->use_cts_prot >= 0) { 2342 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2343 changed |= BSS_CHANGED_ERP_CTS_PROT; 2344 } 2345 if (params->use_short_preamble >= 0) { 2346 sdata->vif.bss_conf.use_short_preamble = 2347 params->use_short_preamble; 2348 changed |= BSS_CHANGED_ERP_PREAMBLE; 2349 } 2350 2351 if (!sdata->vif.bss_conf.use_short_slot && 2352 (sband->band == NL80211_BAND_5GHZ || 2353 sband->band == NL80211_BAND_6GHZ)) { 2354 sdata->vif.bss_conf.use_short_slot = true; 2355 changed |= BSS_CHANGED_ERP_SLOT; 2356 } 2357 2358 if (params->use_short_slot_time >= 0) { 2359 sdata->vif.bss_conf.use_short_slot = 2360 params->use_short_slot_time; 2361 changed |= BSS_CHANGED_ERP_SLOT; 2362 } 2363 2364 if (params->basic_rates) { 2365 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2366 wiphy->bands[sband->band], 2367 params->basic_rates, 2368 params->basic_rates_len, 2369 &sdata->vif.bss_conf.basic_rates); 2370 changed |= BSS_CHANGED_BASIC_RATES; 2371 ieee80211_check_rate_mask(sdata); 2372 } 2373 2374 if (params->ap_isolate >= 0) { 2375 if (params->ap_isolate) 2376 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2377 else 2378 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2379 ieee80211_check_fast_rx_iface(sdata); 2380 } 2381 2382 if (params->ht_opmode >= 0) { 2383 sdata->vif.bss_conf.ht_operation_mode = 2384 (u16) params->ht_opmode; 2385 changed |= BSS_CHANGED_HT; 2386 } 2387 2388 if (params->p2p_ctwindow >= 0) { 2389 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2390 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2391 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2392 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2393 changed |= BSS_CHANGED_P2P_PS; 2394 } 2395 2396 if (params->p2p_opp_ps > 0) { 2397 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2398 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2399 changed |= BSS_CHANGED_P2P_PS; 2400 } else if (params->p2p_opp_ps == 0) { 2401 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2402 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2403 changed |= BSS_CHANGED_P2P_PS; 2404 } 2405 2406 ieee80211_bss_info_change_notify(sdata, changed); 2407 2408 return 0; 2409 } 2410 2411 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2412 struct net_device *dev, 2413 struct ieee80211_txq_params *params) 2414 { 2415 struct ieee80211_local *local = wiphy_priv(wiphy); 2416 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2417 struct ieee80211_tx_queue_params p; 2418 2419 if (!local->ops->conf_tx) 2420 return -EOPNOTSUPP; 2421 2422 if (local->hw.queues < IEEE80211_NUM_ACS) 2423 return -EOPNOTSUPP; 2424 2425 memset(&p, 0, sizeof(p)); 2426 p.aifs = params->aifs; 2427 p.cw_max = params->cwmax; 2428 p.cw_min = params->cwmin; 2429 p.txop = params->txop; 2430 2431 /* 2432 * Setting tx queue params disables u-apsd because it's only 2433 * called in master mode. 2434 */ 2435 p.uapsd = false; 2436 2437 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2438 2439 sdata->tx_conf[params->ac] = p; 2440 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2441 wiphy_debug(local->hw.wiphy, 2442 "failed to set TX queue parameters for AC %d\n", 2443 params->ac); 2444 return -EINVAL; 2445 } 2446 2447 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2448 2449 return 0; 2450 } 2451 2452 #ifdef CONFIG_PM 2453 static int ieee80211_suspend(struct wiphy *wiphy, 2454 struct cfg80211_wowlan *wowlan) 2455 { 2456 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2457 } 2458 2459 static int ieee80211_resume(struct wiphy *wiphy) 2460 { 2461 return __ieee80211_resume(wiphy_priv(wiphy)); 2462 } 2463 #else 2464 #define ieee80211_suspend NULL 2465 #define ieee80211_resume NULL 2466 #endif 2467 2468 static int ieee80211_scan(struct wiphy *wiphy, 2469 struct cfg80211_scan_request *req) 2470 { 2471 struct ieee80211_sub_if_data *sdata; 2472 2473 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2474 2475 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2476 case NL80211_IFTYPE_STATION: 2477 case NL80211_IFTYPE_ADHOC: 2478 case NL80211_IFTYPE_MESH_POINT: 2479 case NL80211_IFTYPE_P2P_CLIENT: 2480 case NL80211_IFTYPE_P2P_DEVICE: 2481 break; 2482 case NL80211_IFTYPE_P2P_GO: 2483 if (sdata->local->ops->hw_scan) 2484 break; 2485 /* 2486 * FIXME: implement NoA while scanning in software, 2487 * for now fall through to allow scanning only when 2488 * beaconing hasn't been configured yet 2489 */ 2490 fallthrough; 2491 case NL80211_IFTYPE_AP: 2492 /* 2493 * If the scan has been forced (and the driver supports 2494 * forcing), don't care about being beaconing already. 2495 * This will create problems to the attached stations (e.g. all 2496 * the frames sent while scanning on other channel will be 2497 * lost) 2498 */ 2499 if (sdata->u.ap.beacon && 2500 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2501 !(req->flags & NL80211_SCAN_FLAG_AP))) 2502 return -EOPNOTSUPP; 2503 break; 2504 case NL80211_IFTYPE_NAN: 2505 default: 2506 return -EOPNOTSUPP; 2507 } 2508 2509 return ieee80211_request_scan(sdata, req); 2510 } 2511 2512 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2513 { 2514 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2515 } 2516 2517 static int 2518 ieee80211_sched_scan_start(struct wiphy *wiphy, 2519 struct net_device *dev, 2520 struct cfg80211_sched_scan_request *req) 2521 { 2522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2523 2524 if (!sdata->local->ops->sched_scan_start) 2525 return -EOPNOTSUPP; 2526 2527 return ieee80211_request_sched_scan_start(sdata, req); 2528 } 2529 2530 static int 2531 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2532 u64 reqid) 2533 { 2534 struct ieee80211_local *local = wiphy_priv(wiphy); 2535 2536 if (!local->ops->sched_scan_stop) 2537 return -EOPNOTSUPP; 2538 2539 return ieee80211_request_sched_scan_stop(local); 2540 } 2541 2542 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2543 struct cfg80211_auth_request *req) 2544 { 2545 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2546 } 2547 2548 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2549 struct cfg80211_assoc_request *req) 2550 { 2551 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2552 } 2553 2554 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2555 struct cfg80211_deauth_request *req) 2556 { 2557 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2558 } 2559 2560 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2561 struct cfg80211_disassoc_request *req) 2562 { 2563 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2564 } 2565 2566 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2567 struct cfg80211_ibss_params *params) 2568 { 2569 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2570 } 2571 2572 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2573 { 2574 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2575 } 2576 2577 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2578 struct ocb_setup *setup) 2579 { 2580 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2581 } 2582 2583 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2584 { 2585 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2586 } 2587 2588 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2589 int rate[NUM_NL80211_BANDS]) 2590 { 2591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2592 2593 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2594 sizeof(int) * NUM_NL80211_BANDS); 2595 2596 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2597 2598 return 0; 2599 } 2600 2601 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2602 { 2603 struct ieee80211_local *local = wiphy_priv(wiphy); 2604 int err; 2605 2606 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2607 ieee80211_check_fast_xmit_all(local); 2608 2609 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2610 2611 if (err) { 2612 ieee80211_check_fast_xmit_all(local); 2613 return err; 2614 } 2615 } 2616 2617 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2618 (changed & WIPHY_PARAM_DYN_ACK)) { 2619 s16 coverage_class; 2620 2621 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2622 wiphy->coverage_class : -1; 2623 err = drv_set_coverage_class(local, coverage_class); 2624 2625 if (err) 2626 return err; 2627 } 2628 2629 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2630 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2631 2632 if (err) 2633 return err; 2634 } 2635 2636 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2637 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2638 return -EINVAL; 2639 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2640 } 2641 if (changed & WIPHY_PARAM_RETRY_LONG) { 2642 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2643 return -EINVAL; 2644 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2645 } 2646 if (changed & 2647 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2648 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2649 2650 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2651 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2652 WIPHY_PARAM_TXQ_QUANTUM)) 2653 ieee80211_txq_set_params(local); 2654 2655 return 0; 2656 } 2657 2658 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2659 struct wireless_dev *wdev, 2660 enum nl80211_tx_power_setting type, int mbm) 2661 { 2662 struct ieee80211_local *local = wiphy_priv(wiphy); 2663 struct ieee80211_sub_if_data *sdata; 2664 enum nl80211_tx_power_setting txp_type = type; 2665 bool update_txp_type = false; 2666 bool has_monitor = false; 2667 2668 if (wdev) { 2669 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2670 2671 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2672 sdata = rtnl_dereference(local->monitor_sdata); 2673 if (!sdata) 2674 return -EOPNOTSUPP; 2675 } 2676 2677 switch (type) { 2678 case NL80211_TX_POWER_AUTOMATIC: 2679 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2680 txp_type = NL80211_TX_POWER_LIMITED; 2681 break; 2682 case NL80211_TX_POWER_LIMITED: 2683 case NL80211_TX_POWER_FIXED: 2684 if (mbm < 0 || (mbm % 100)) 2685 return -EOPNOTSUPP; 2686 sdata->user_power_level = MBM_TO_DBM(mbm); 2687 break; 2688 } 2689 2690 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2691 update_txp_type = true; 2692 sdata->vif.bss_conf.txpower_type = txp_type; 2693 } 2694 2695 ieee80211_recalc_txpower(sdata, update_txp_type); 2696 2697 return 0; 2698 } 2699 2700 switch (type) { 2701 case NL80211_TX_POWER_AUTOMATIC: 2702 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2703 txp_type = NL80211_TX_POWER_LIMITED; 2704 break; 2705 case NL80211_TX_POWER_LIMITED: 2706 case NL80211_TX_POWER_FIXED: 2707 if (mbm < 0 || (mbm % 100)) 2708 return -EOPNOTSUPP; 2709 local->user_power_level = MBM_TO_DBM(mbm); 2710 break; 2711 } 2712 2713 mutex_lock(&local->iflist_mtx); 2714 list_for_each_entry(sdata, &local->interfaces, list) { 2715 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2716 has_monitor = true; 2717 continue; 2718 } 2719 sdata->user_power_level = local->user_power_level; 2720 if (txp_type != sdata->vif.bss_conf.txpower_type) 2721 update_txp_type = true; 2722 sdata->vif.bss_conf.txpower_type = txp_type; 2723 } 2724 list_for_each_entry(sdata, &local->interfaces, list) { 2725 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2726 continue; 2727 ieee80211_recalc_txpower(sdata, update_txp_type); 2728 } 2729 mutex_unlock(&local->iflist_mtx); 2730 2731 if (has_monitor) { 2732 sdata = rtnl_dereference(local->monitor_sdata); 2733 if (sdata) { 2734 sdata->user_power_level = local->user_power_level; 2735 if (txp_type != sdata->vif.bss_conf.txpower_type) 2736 update_txp_type = true; 2737 sdata->vif.bss_conf.txpower_type = txp_type; 2738 2739 ieee80211_recalc_txpower(sdata, update_txp_type); 2740 } 2741 } 2742 2743 return 0; 2744 } 2745 2746 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2747 struct wireless_dev *wdev, 2748 int *dbm) 2749 { 2750 struct ieee80211_local *local = wiphy_priv(wiphy); 2751 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2752 2753 if (local->ops->get_txpower) 2754 return drv_get_txpower(local, sdata, dbm); 2755 2756 if (!local->use_chanctx) 2757 *dbm = local->hw.conf.power_level; 2758 else 2759 *dbm = sdata->vif.bss_conf.txpower; 2760 2761 return 0; 2762 } 2763 2764 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2765 { 2766 struct ieee80211_local *local = wiphy_priv(wiphy); 2767 2768 drv_rfkill_poll(local); 2769 } 2770 2771 #ifdef CONFIG_NL80211_TESTMODE 2772 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2773 struct wireless_dev *wdev, 2774 void *data, int len) 2775 { 2776 struct ieee80211_local *local = wiphy_priv(wiphy); 2777 struct ieee80211_vif *vif = NULL; 2778 2779 if (!local->ops->testmode_cmd) 2780 return -EOPNOTSUPP; 2781 2782 if (wdev) { 2783 struct ieee80211_sub_if_data *sdata; 2784 2785 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2786 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2787 vif = &sdata->vif; 2788 } 2789 2790 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2791 } 2792 2793 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2794 struct sk_buff *skb, 2795 struct netlink_callback *cb, 2796 void *data, int len) 2797 { 2798 struct ieee80211_local *local = wiphy_priv(wiphy); 2799 2800 if (!local->ops->testmode_dump) 2801 return -EOPNOTSUPP; 2802 2803 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2804 } 2805 #endif 2806 2807 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2808 enum ieee80211_smps_mode smps_mode) 2809 { 2810 const u8 *ap; 2811 enum ieee80211_smps_mode old_req; 2812 int err; 2813 struct sta_info *sta; 2814 bool tdls_peer_found = false; 2815 2816 lockdep_assert_held(&sdata->wdev.mtx); 2817 2818 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2819 return -EINVAL; 2820 2821 old_req = sdata->u.mgd.req_smps; 2822 sdata->u.mgd.req_smps = smps_mode; 2823 2824 if (old_req == smps_mode && 2825 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2826 return 0; 2827 2828 /* 2829 * If not associated, or current association is not an HT 2830 * association, there's no need to do anything, just store 2831 * the new value until we associate. 2832 */ 2833 if (!sdata->u.mgd.associated || 2834 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2835 return 0; 2836 2837 ap = sdata->u.mgd.associated->bssid; 2838 2839 rcu_read_lock(); 2840 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2841 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2842 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2843 continue; 2844 2845 tdls_peer_found = true; 2846 break; 2847 } 2848 rcu_read_unlock(); 2849 2850 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2851 if (tdls_peer_found || !sdata->u.mgd.powersave) 2852 smps_mode = IEEE80211_SMPS_OFF; 2853 else 2854 smps_mode = IEEE80211_SMPS_DYNAMIC; 2855 } 2856 2857 /* send SM PS frame to AP */ 2858 err = ieee80211_send_smps_action(sdata, smps_mode, 2859 ap, ap); 2860 if (err) 2861 sdata->u.mgd.req_smps = old_req; 2862 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2863 ieee80211_teardown_tdls_peers(sdata); 2864 2865 return err; 2866 } 2867 2868 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2869 bool enabled, int timeout) 2870 { 2871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2872 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2873 2874 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2875 return -EOPNOTSUPP; 2876 2877 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2878 return -EOPNOTSUPP; 2879 2880 if (enabled == sdata->u.mgd.powersave && 2881 timeout == local->dynamic_ps_forced_timeout) 2882 return 0; 2883 2884 sdata->u.mgd.powersave = enabled; 2885 local->dynamic_ps_forced_timeout = timeout; 2886 2887 /* no change, but if automatic follow powersave */ 2888 sdata_lock(sdata); 2889 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2890 sdata_unlock(sdata); 2891 2892 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2893 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2894 2895 ieee80211_recalc_ps(local); 2896 ieee80211_recalc_ps_vif(sdata); 2897 ieee80211_check_fast_rx_iface(sdata); 2898 2899 return 0; 2900 } 2901 2902 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2903 struct net_device *dev, 2904 s32 rssi_thold, u32 rssi_hyst) 2905 { 2906 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2907 struct ieee80211_vif *vif = &sdata->vif; 2908 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2909 2910 if (rssi_thold == bss_conf->cqm_rssi_thold && 2911 rssi_hyst == bss_conf->cqm_rssi_hyst) 2912 return 0; 2913 2914 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2915 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2916 return -EOPNOTSUPP; 2917 2918 bss_conf->cqm_rssi_thold = rssi_thold; 2919 bss_conf->cqm_rssi_hyst = rssi_hyst; 2920 bss_conf->cqm_rssi_low = 0; 2921 bss_conf->cqm_rssi_high = 0; 2922 sdata->u.mgd.last_cqm_event_signal = 0; 2923 2924 /* tell the driver upon association, unless already associated */ 2925 if (sdata->u.mgd.associated && 2926 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2927 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2928 2929 return 0; 2930 } 2931 2932 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2933 struct net_device *dev, 2934 s32 rssi_low, s32 rssi_high) 2935 { 2936 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2937 struct ieee80211_vif *vif = &sdata->vif; 2938 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2939 2940 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2941 return -EOPNOTSUPP; 2942 2943 bss_conf->cqm_rssi_low = rssi_low; 2944 bss_conf->cqm_rssi_high = rssi_high; 2945 bss_conf->cqm_rssi_thold = 0; 2946 bss_conf->cqm_rssi_hyst = 0; 2947 sdata->u.mgd.last_cqm_event_signal = 0; 2948 2949 /* tell the driver upon association, unless already associated */ 2950 if (sdata->u.mgd.associated && 2951 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2952 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2953 2954 return 0; 2955 } 2956 2957 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2958 struct net_device *dev, 2959 const u8 *addr, 2960 const struct cfg80211_bitrate_mask *mask) 2961 { 2962 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2963 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2964 int i, ret; 2965 2966 if (!ieee80211_sdata_running(sdata)) 2967 return -ENETDOWN; 2968 2969 /* 2970 * If active validate the setting and reject it if it doesn't leave 2971 * at least one basic rate usable, since we really have to be able 2972 * to send something, and if we're an AP we have to be able to do 2973 * so at a basic rate so that all clients can receive it. 2974 */ 2975 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2976 sdata->vif.bss_conf.chandef.chan) { 2977 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2978 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2979 2980 if (!(mask->control[band].legacy & basic_rates)) 2981 return -EINVAL; 2982 } 2983 2984 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2985 ret = drv_set_bitrate_mask(local, sdata, mask); 2986 if (ret) 2987 return ret; 2988 } 2989 2990 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2991 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2992 int j; 2993 2994 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2995 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2996 sizeof(mask->control[i].ht_mcs)); 2997 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2998 mask->control[i].vht_mcs, 2999 sizeof(mask->control[i].vht_mcs)); 3000 3001 sdata->rc_has_mcs_mask[i] = false; 3002 sdata->rc_has_vht_mcs_mask[i] = false; 3003 if (!sband) 3004 continue; 3005 3006 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 3007 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { 3008 sdata->rc_has_mcs_mask[i] = true; 3009 break; 3010 } 3011 } 3012 3013 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 3014 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { 3015 sdata->rc_has_vht_mcs_mask[i] = true; 3016 break; 3017 } 3018 } 3019 } 3020 3021 return 0; 3022 } 3023 3024 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 3025 struct net_device *dev, 3026 struct cfg80211_chan_def *chandef, 3027 u32 cac_time_ms) 3028 { 3029 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3030 struct ieee80211_local *local = sdata->local; 3031 int err; 3032 3033 mutex_lock(&local->mtx); 3034 if (!list_empty(&local->roc_list) || local->scanning) { 3035 err = -EBUSY; 3036 goto out_unlock; 3037 } 3038 3039 /* whatever, but channel contexts should not complain about that one */ 3040 sdata->smps_mode = IEEE80211_SMPS_OFF; 3041 sdata->needed_rx_chains = local->rx_chains; 3042 3043 err = ieee80211_vif_use_channel(sdata, chandef, 3044 IEEE80211_CHANCTX_SHARED); 3045 if (err) 3046 goto out_unlock; 3047 3048 ieee80211_queue_delayed_work(&sdata->local->hw, 3049 &sdata->dfs_cac_timer_work, 3050 msecs_to_jiffies(cac_time_ms)); 3051 3052 out_unlock: 3053 mutex_unlock(&local->mtx); 3054 return err; 3055 } 3056 3057 static void ieee80211_end_cac(struct wiphy *wiphy, 3058 struct net_device *dev) 3059 { 3060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3061 struct ieee80211_local *local = sdata->local; 3062 3063 mutex_lock(&local->mtx); 3064 list_for_each_entry(sdata, &local->interfaces, list) { 3065 /* it might be waiting for the local->mtx, but then 3066 * by the time it gets it, sdata->wdev.cac_started 3067 * will no longer be true 3068 */ 3069 cancel_delayed_work(&sdata->dfs_cac_timer_work); 3070 3071 if (sdata->wdev.cac_started) { 3072 ieee80211_vif_release_channel(sdata); 3073 sdata->wdev.cac_started = false; 3074 } 3075 } 3076 mutex_unlock(&local->mtx); 3077 } 3078 3079 static struct cfg80211_beacon_data * 3080 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 3081 { 3082 struct cfg80211_beacon_data *new_beacon; 3083 u8 *pos; 3084 int len; 3085 3086 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 3087 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 3088 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 3089 3090 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 3091 if (!new_beacon) 3092 return NULL; 3093 3094 pos = (u8 *)(new_beacon + 1); 3095 if (beacon->head_len) { 3096 new_beacon->head_len = beacon->head_len; 3097 new_beacon->head = pos; 3098 memcpy(pos, beacon->head, beacon->head_len); 3099 pos += beacon->head_len; 3100 } 3101 if (beacon->tail_len) { 3102 new_beacon->tail_len = beacon->tail_len; 3103 new_beacon->tail = pos; 3104 memcpy(pos, beacon->tail, beacon->tail_len); 3105 pos += beacon->tail_len; 3106 } 3107 if (beacon->beacon_ies_len) { 3108 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 3109 new_beacon->beacon_ies = pos; 3110 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 3111 pos += beacon->beacon_ies_len; 3112 } 3113 if (beacon->proberesp_ies_len) { 3114 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 3115 new_beacon->proberesp_ies = pos; 3116 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3117 pos += beacon->proberesp_ies_len; 3118 } 3119 if (beacon->assocresp_ies_len) { 3120 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3121 new_beacon->assocresp_ies = pos; 3122 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3123 pos += beacon->assocresp_ies_len; 3124 } 3125 if (beacon->probe_resp_len) { 3126 new_beacon->probe_resp_len = beacon->probe_resp_len; 3127 new_beacon->probe_resp = pos; 3128 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3129 pos += beacon->probe_resp_len; 3130 } 3131 3132 /* might copy -1, meaning no changes requested */ 3133 new_beacon->ftm_responder = beacon->ftm_responder; 3134 if (beacon->lci) { 3135 new_beacon->lci_len = beacon->lci_len; 3136 new_beacon->lci = pos; 3137 memcpy(pos, beacon->lci, beacon->lci_len); 3138 pos += beacon->lci_len; 3139 } 3140 if (beacon->civicloc) { 3141 new_beacon->civicloc_len = beacon->civicloc_len; 3142 new_beacon->civicloc = pos; 3143 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3144 pos += beacon->civicloc_len; 3145 } 3146 3147 return new_beacon; 3148 } 3149 3150 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3151 { 3152 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3153 3154 ieee80211_queue_work(&sdata->local->hw, 3155 &sdata->csa_finalize_work); 3156 } 3157 EXPORT_SYMBOL(ieee80211_csa_finish); 3158 3159 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3160 u32 *changed) 3161 { 3162 int err; 3163 3164 switch (sdata->vif.type) { 3165 case NL80211_IFTYPE_AP: 3166 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3167 NULL, NULL); 3168 kfree(sdata->u.ap.next_beacon); 3169 sdata->u.ap.next_beacon = NULL; 3170 3171 if (err < 0) 3172 return err; 3173 *changed |= err; 3174 break; 3175 case NL80211_IFTYPE_ADHOC: 3176 err = ieee80211_ibss_finish_csa(sdata); 3177 if (err < 0) 3178 return err; 3179 *changed |= err; 3180 break; 3181 #ifdef CONFIG_MAC80211_MESH 3182 case NL80211_IFTYPE_MESH_POINT: 3183 err = ieee80211_mesh_finish_csa(sdata); 3184 if (err < 0) 3185 return err; 3186 *changed |= err; 3187 break; 3188 #endif 3189 default: 3190 WARN_ON(1); 3191 return -EINVAL; 3192 } 3193 3194 return 0; 3195 } 3196 3197 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3198 { 3199 struct ieee80211_local *local = sdata->local; 3200 u32 changed = 0; 3201 int err; 3202 3203 sdata_assert_lock(sdata); 3204 lockdep_assert_held(&local->mtx); 3205 lockdep_assert_held(&local->chanctx_mtx); 3206 3207 /* 3208 * using reservation isn't immediate as it may be deferred until later 3209 * with multi-vif. once reservation is complete it will re-schedule the 3210 * work with no reserved_chanctx so verify chandef to check if it 3211 * completed successfully 3212 */ 3213 3214 if (sdata->reserved_chanctx) { 3215 /* 3216 * with multi-vif csa driver may call ieee80211_csa_finish() 3217 * many times while waiting for other interfaces to use their 3218 * reservations 3219 */ 3220 if (sdata->reserved_ready) 3221 return 0; 3222 3223 return ieee80211_vif_use_reserved_context(sdata); 3224 } 3225 3226 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3227 &sdata->csa_chandef)) 3228 return -EINVAL; 3229 3230 sdata->vif.csa_active = false; 3231 3232 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3233 if (err) 3234 return err; 3235 3236 ieee80211_bss_info_change_notify(sdata, changed); 3237 3238 if (sdata->csa_block_tx) { 3239 ieee80211_wake_vif_queues(local, sdata, 3240 IEEE80211_QUEUE_STOP_REASON_CSA); 3241 sdata->csa_block_tx = false; 3242 } 3243 3244 err = drv_post_channel_switch(sdata); 3245 if (err) 3246 return err; 3247 3248 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3249 3250 return 0; 3251 } 3252 3253 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3254 { 3255 if (__ieee80211_csa_finalize(sdata)) { 3256 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3257 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3258 GFP_KERNEL); 3259 } 3260 } 3261 3262 void ieee80211_csa_finalize_work(struct work_struct *work) 3263 { 3264 struct ieee80211_sub_if_data *sdata = 3265 container_of(work, struct ieee80211_sub_if_data, 3266 csa_finalize_work); 3267 struct ieee80211_local *local = sdata->local; 3268 3269 sdata_lock(sdata); 3270 mutex_lock(&local->mtx); 3271 mutex_lock(&local->chanctx_mtx); 3272 3273 /* AP might have been stopped while waiting for the lock. */ 3274 if (!sdata->vif.csa_active) 3275 goto unlock; 3276 3277 if (!ieee80211_sdata_running(sdata)) 3278 goto unlock; 3279 3280 ieee80211_csa_finalize(sdata); 3281 3282 unlock: 3283 mutex_unlock(&local->chanctx_mtx); 3284 mutex_unlock(&local->mtx); 3285 sdata_unlock(sdata); 3286 } 3287 3288 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3289 struct cfg80211_csa_settings *params, 3290 u32 *changed) 3291 { 3292 struct ieee80211_csa_settings csa = {}; 3293 int err; 3294 3295 switch (sdata->vif.type) { 3296 case NL80211_IFTYPE_AP: 3297 sdata->u.ap.next_beacon = 3298 cfg80211_beacon_dup(¶ms->beacon_after); 3299 if (!sdata->u.ap.next_beacon) 3300 return -ENOMEM; 3301 3302 /* 3303 * With a count of 0, we don't have to wait for any 3304 * TBTT before switching, so complete the CSA 3305 * immediately. In theory, with a count == 1 we 3306 * should delay the switch until just before the next 3307 * TBTT, but that would complicate things so we switch 3308 * immediately too. If we would delay the switch 3309 * until the next TBTT, we would have to set the probe 3310 * response here. 3311 * 3312 * TODO: A channel switch with count <= 1 without 3313 * sending a CSA action frame is kind of useless, 3314 * because the clients won't know we're changing 3315 * channels. The action frame must be implemented 3316 * either here or in the userspace. 3317 */ 3318 if (params->count <= 1) 3319 break; 3320 3321 if ((params->n_counter_offsets_beacon > 3322 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || 3323 (params->n_counter_offsets_presp > 3324 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) 3325 return -EINVAL; 3326 3327 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3328 csa.counter_offsets_presp = params->counter_offsets_presp; 3329 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3330 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3331 csa.count = params->count; 3332 3333 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL); 3334 if (err < 0) { 3335 kfree(sdata->u.ap.next_beacon); 3336 return err; 3337 } 3338 *changed |= err; 3339 3340 break; 3341 case NL80211_IFTYPE_ADHOC: 3342 if (!sdata->vif.bss_conf.ibss_joined) 3343 return -EINVAL; 3344 3345 if (params->chandef.width != sdata->u.ibss.chandef.width) 3346 return -EINVAL; 3347 3348 switch (params->chandef.width) { 3349 case NL80211_CHAN_WIDTH_40: 3350 if (cfg80211_get_chandef_type(¶ms->chandef) != 3351 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3352 return -EINVAL; 3353 break; 3354 case NL80211_CHAN_WIDTH_5: 3355 case NL80211_CHAN_WIDTH_10: 3356 case NL80211_CHAN_WIDTH_20_NOHT: 3357 case NL80211_CHAN_WIDTH_20: 3358 break; 3359 default: 3360 return -EINVAL; 3361 } 3362 3363 /* changes into another band are not supported */ 3364 if (sdata->u.ibss.chandef.chan->band != 3365 params->chandef.chan->band) 3366 return -EINVAL; 3367 3368 /* see comments in the NL80211_IFTYPE_AP block */ 3369 if (params->count > 1) { 3370 err = ieee80211_ibss_csa_beacon(sdata, params); 3371 if (err < 0) 3372 return err; 3373 *changed |= err; 3374 } 3375 3376 ieee80211_send_action_csa(sdata, params); 3377 3378 break; 3379 #ifdef CONFIG_MAC80211_MESH 3380 case NL80211_IFTYPE_MESH_POINT: { 3381 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3382 3383 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3384 return -EINVAL; 3385 3386 /* changes into another band are not supported */ 3387 if (sdata->vif.bss_conf.chandef.chan->band != 3388 params->chandef.chan->band) 3389 return -EINVAL; 3390 3391 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3392 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3393 if (!ifmsh->pre_value) 3394 ifmsh->pre_value = 1; 3395 else 3396 ifmsh->pre_value++; 3397 } 3398 3399 /* see comments in the NL80211_IFTYPE_AP block */ 3400 if (params->count > 1) { 3401 err = ieee80211_mesh_csa_beacon(sdata, params); 3402 if (err < 0) { 3403 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3404 return err; 3405 } 3406 *changed |= err; 3407 } 3408 3409 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3410 ieee80211_send_action_csa(sdata, params); 3411 3412 break; 3413 } 3414 #endif 3415 default: 3416 return -EOPNOTSUPP; 3417 } 3418 3419 return 0; 3420 } 3421 3422 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) 3423 { 3424 sdata->vif.color_change_active = false; 3425 kfree(sdata->u.ap.next_beacon); 3426 sdata->u.ap.next_beacon = NULL; 3427 3428 cfg80211_color_change_aborted_notify(sdata->dev); 3429 } 3430 3431 static int 3432 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3433 struct cfg80211_csa_settings *params) 3434 { 3435 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3436 struct ieee80211_local *local = sdata->local; 3437 struct ieee80211_channel_switch ch_switch; 3438 struct ieee80211_chanctx_conf *conf; 3439 struct ieee80211_chanctx *chanctx; 3440 u32 changed = 0; 3441 int err; 3442 3443 sdata_assert_lock(sdata); 3444 lockdep_assert_held(&local->mtx); 3445 3446 if (!list_empty(&local->roc_list) || local->scanning) 3447 return -EBUSY; 3448 3449 if (sdata->wdev.cac_started) 3450 return -EBUSY; 3451 3452 if (cfg80211_chandef_identical(¶ms->chandef, 3453 &sdata->vif.bss_conf.chandef)) 3454 return -EINVAL; 3455 3456 /* don't allow another channel switch if one is already active. */ 3457 if (sdata->vif.csa_active) 3458 return -EBUSY; 3459 3460 mutex_lock(&local->chanctx_mtx); 3461 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3462 lockdep_is_held(&local->chanctx_mtx)); 3463 if (!conf) { 3464 err = -EBUSY; 3465 goto out; 3466 } 3467 3468 if (params->chandef.chan->freq_offset) { 3469 /* this may work, but is untested */ 3470 err = -EOPNOTSUPP; 3471 goto out; 3472 } 3473 3474 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3475 3476 ch_switch.timestamp = 0; 3477 ch_switch.device_timestamp = 0; 3478 ch_switch.block_tx = params->block_tx; 3479 ch_switch.chandef = params->chandef; 3480 ch_switch.count = params->count; 3481 3482 err = drv_pre_channel_switch(sdata, &ch_switch); 3483 if (err) 3484 goto out; 3485 3486 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3487 chanctx->mode, 3488 params->radar_required); 3489 if (err) 3490 goto out; 3491 3492 /* if reservation is invalid then this will fail */ 3493 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3494 if (err) { 3495 ieee80211_vif_unreserve_chanctx(sdata); 3496 goto out; 3497 } 3498 3499 /* if there is a color change in progress, abort it */ 3500 if (sdata->vif.color_change_active) 3501 ieee80211_color_change_abort(sdata); 3502 3503 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3504 if (err) { 3505 ieee80211_vif_unreserve_chanctx(sdata); 3506 goto out; 3507 } 3508 3509 sdata->csa_chandef = params->chandef; 3510 sdata->csa_block_tx = params->block_tx; 3511 sdata->vif.csa_active = true; 3512 3513 if (sdata->csa_block_tx) 3514 ieee80211_stop_vif_queues(local, sdata, 3515 IEEE80211_QUEUE_STOP_REASON_CSA); 3516 3517 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3518 params->count, params->block_tx); 3519 3520 if (changed) { 3521 ieee80211_bss_info_change_notify(sdata, changed); 3522 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3523 } else { 3524 /* if the beacon didn't change, we can finalize immediately */ 3525 ieee80211_csa_finalize(sdata); 3526 } 3527 3528 out: 3529 mutex_unlock(&local->chanctx_mtx); 3530 return err; 3531 } 3532 3533 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3534 struct cfg80211_csa_settings *params) 3535 { 3536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3537 struct ieee80211_local *local = sdata->local; 3538 int err; 3539 3540 mutex_lock(&local->mtx); 3541 err = __ieee80211_channel_switch(wiphy, dev, params); 3542 mutex_unlock(&local->mtx); 3543 3544 return err; 3545 } 3546 3547 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3548 { 3549 lockdep_assert_held(&local->mtx); 3550 3551 local->roc_cookie_counter++; 3552 3553 /* wow, you wrapped 64 bits ... more likely a bug */ 3554 if (WARN_ON(local->roc_cookie_counter == 0)) 3555 local->roc_cookie_counter++; 3556 3557 return local->roc_cookie_counter; 3558 } 3559 3560 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3561 u64 *cookie, gfp_t gfp) 3562 { 3563 unsigned long spin_flags; 3564 struct sk_buff *ack_skb; 3565 int id; 3566 3567 ack_skb = skb_copy(skb, gfp); 3568 if (!ack_skb) 3569 return -ENOMEM; 3570 3571 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3572 id = idr_alloc(&local->ack_status_frames, ack_skb, 3573 1, 0x2000, GFP_ATOMIC); 3574 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3575 3576 if (id < 0) { 3577 kfree_skb(ack_skb); 3578 return -ENOMEM; 3579 } 3580 3581 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3582 3583 *cookie = ieee80211_mgmt_tx_cookie(local); 3584 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3585 3586 return 0; 3587 } 3588 3589 static void 3590 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3591 struct wireless_dev *wdev, 3592 struct mgmt_frame_regs *upd) 3593 { 3594 struct ieee80211_local *local = wiphy_priv(wiphy); 3595 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3596 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3597 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3598 bool global_change, intf_change; 3599 3600 global_change = 3601 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3602 (local->rx_mcast_action_reg != 3603 !!(upd->global_mcast_stypes & action_mask)); 3604 local->probe_req_reg = upd->global_stypes & preq_mask; 3605 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3606 3607 intf_change = (sdata->vif.probe_req_reg != 3608 !!(upd->interface_stypes & preq_mask)) || 3609 (sdata->vif.rx_mcast_action_reg != 3610 !!(upd->interface_mcast_stypes & action_mask)); 3611 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3612 sdata->vif.rx_mcast_action_reg = 3613 upd->interface_mcast_stypes & action_mask; 3614 3615 if (!local->open_count) 3616 return; 3617 3618 if (intf_change && ieee80211_sdata_running(sdata)) 3619 drv_config_iface_filter(local, sdata, 3620 sdata->vif.probe_req_reg ? 3621 FIF_PROBE_REQ : 0, 3622 FIF_PROBE_REQ); 3623 3624 if (global_change) 3625 ieee80211_configure_filter(local); 3626 } 3627 3628 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3629 { 3630 struct ieee80211_local *local = wiphy_priv(wiphy); 3631 3632 if (local->started) 3633 return -EOPNOTSUPP; 3634 3635 return drv_set_antenna(local, tx_ant, rx_ant); 3636 } 3637 3638 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3639 { 3640 struct ieee80211_local *local = wiphy_priv(wiphy); 3641 3642 return drv_get_antenna(local, tx_ant, rx_ant); 3643 } 3644 3645 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3646 struct net_device *dev, 3647 struct cfg80211_gtk_rekey_data *data) 3648 { 3649 struct ieee80211_local *local = wiphy_priv(wiphy); 3650 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3651 3652 if (!local->ops->set_rekey_data) 3653 return -EOPNOTSUPP; 3654 3655 drv_set_rekey_data(local, sdata, data); 3656 3657 return 0; 3658 } 3659 3660 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3661 const u8 *peer, u64 *cookie) 3662 { 3663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3664 struct ieee80211_local *local = sdata->local; 3665 struct ieee80211_qos_hdr *nullfunc; 3666 struct sk_buff *skb; 3667 int size = sizeof(*nullfunc); 3668 __le16 fc; 3669 bool qos; 3670 struct ieee80211_tx_info *info; 3671 struct sta_info *sta; 3672 struct ieee80211_chanctx_conf *chanctx_conf; 3673 enum nl80211_band band; 3674 int ret; 3675 3676 /* the lock is needed to assign the cookie later */ 3677 mutex_lock(&local->mtx); 3678 3679 rcu_read_lock(); 3680 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3681 if (WARN_ON(!chanctx_conf)) { 3682 ret = -EINVAL; 3683 goto unlock; 3684 } 3685 band = chanctx_conf->def.chan->band; 3686 sta = sta_info_get_bss(sdata, peer); 3687 if (sta) { 3688 qos = sta->sta.wme; 3689 } else { 3690 ret = -ENOLINK; 3691 goto unlock; 3692 } 3693 3694 if (qos) { 3695 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3696 IEEE80211_STYPE_QOS_NULLFUNC | 3697 IEEE80211_FCTL_FROMDS); 3698 } else { 3699 size -= 2; 3700 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3701 IEEE80211_STYPE_NULLFUNC | 3702 IEEE80211_FCTL_FROMDS); 3703 } 3704 3705 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3706 if (!skb) { 3707 ret = -ENOMEM; 3708 goto unlock; 3709 } 3710 3711 skb->dev = dev; 3712 3713 skb_reserve(skb, local->hw.extra_tx_headroom); 3714 3715 nullfunc = skb_put(skb, size); 3716 nullfunc->frame_control = fc; 3717 nullfunc->duration_id = 0; 3718 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3719 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3720 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3721 nullfunc->seq_ctrl = 0; 3722 3723 info = IEEE80211_SKB_CB(skb); 3724 3725 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3726 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3727 info->band = band; 3728 3729 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3730 skb->priority = 7; 3731 if (qos) 3732 nullfunc->qos_ctrl = cpu_to_le16(7); 3733 3734 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3735 if (ret) { 3736 kfree_skb(skb); 3737 goto unlock; 3738 } 3739 3740 local_bh_disable(); 3741 ieee80211_xmit(sdata, sta, skb); 3742 local_bh_enable(); 3743 3744 ret = 0; 3745 unlock: 3746 rcu_read_unlock(); 3747 mutex_unlock(&local->mtx); 3748 3749 return ret; 3750 } 3751 3752 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3753 struct wireless_dev *wdev, 3754 struct cfg80211_chan_def *chandef) 3755 { 3756 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3757 struct ieee80211_local *local = wiphy_priv(wiphy); 3758 struct ieee80211_chanctx_conf *chanctx_conf; 3759 int ret = -ENODATA; 3760 3761 rcu_read_lock(); 3762 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3763 if (chanctx_conf) { 3764 *chandef = sdata->vif.bss_conf.chandef; 3765 ret = 0; 3766 } else if (local->open_count > 0 && 3767 local->open_count == local->monitors && 3768 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3769 if (local->use_chanctx) 3770 *chandef = local->monitor_chandef; 3771 else 3772 *chandef = local->_oper_chandef; 3773 ret = 0; 3774 } 3775 rcu_read_unlock(); 3776 3777 return ret; 3778 } 3779 3780 #ifdef CONFIG_PM 3781 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3782 { 3783 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3784 } 3785 #endif 3786 3787 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3788 struct net_device *dev, 3789 struct cfg80211_qos_map *qos_map) 3790 { 3791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3792 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3793 3794 if (qos_map) { 3795 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3796 if (!new_qos_map) 3797 return -ENOMEM; 3798 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3799 } else { 3800 /* A NULL qos_map was passed to disable QoS mapping */ 3801 new_qos_map = NULL; 3802 } 3803 3804 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3805 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3806 if (old_qos_map) 3807 kfree_rcu(old_qos_map, rcu_head); 3808 3809 return 0; 3810 } 3811 3812 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3813 struct net_device *dev, 3814 struct cfg80211_chan_def *chandef) 3815 { 3816 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3817 int ret; 3818 u32 changed = 0; 3819 3820 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3821 if (ret == 0) 3822 ieee80211_bss_info_change_notify(sdata, changed); 3823 3824 return ret; 3825 } 3826 3827 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3828 u8 tsid, const u8 *peer, u8 up, 3829 u16 admitted_time) 3830 { 3831 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3832 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3833 int ac = ieee802_1d_to_ac[up]; 3834 3835 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3836 return -EOPNOTSUPP; 3837 3838 if (!(sdata->wmm_acm & BIT(up))) 3839 return -EINVAL; 3840 3841 if (ifmgd->tx_tspec[ac].admitted_time) 3842 return -EBUSY; 3843 3844 if (admitted_time) { 3845 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3846 ifmgd->tx_tspec[ac].tsid = tsid; 3847 ifmgd->tx_tspec[ac].up = up; 3848 } 3849 3850 return 0; 3851 } 3852 3853 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3854 u8 tsid, const u8 *peer) 3855 { 3856 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3857 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3858 struct ieee80211_local *local = wiphy_priv(wiphy); 3859 int ac; 3860 3861 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3862 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3863 3864 /* skip unused entries */ 3865 if (!tx_tspec->admitted_time) 3866 continue; 3867 3868 if (tx_tspec->tsid != tsid) 3869 continue; 3870 3871 /* due to this new packets will be reassigned to non-ACM ACs */ 3872 tx_tspec->up = -1; 3873 3874 /* Make sure that all packets have been sent to avoid to 3875 * restore the QoS params on packets that are still on the 3876 * queues. 3877 */ 3878 synchronize_net(); 3879 ieee80211_flush_queues(local, sdata, false); 3880 3881 /* restore the normal QoS parameters 3882 * (unconditionally to avoid races) 3883 */ 3884 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3885 tx_tspec->downgraded = false; 3886 ieee80211_sta_handle_tspec_ac_params(sdata); 3887 3888 /* finally clear all the data */ 3889 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3890 3891 return 0; 3892 } 3893 3894 return -ENOENT; 3895 } 3896 3897 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3898 u8 inst_id, 3899 enum nl80211_nan_func_term_reason reason, 3900 gfp_t gfp) 3901 { 3902 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3903 struct cfg80211_nan_func *func; 3904 u64 cookie; 3905 3906 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3907 return; 3908 3909 spin_lock_bh(&sdata->u.nan.func_lock); 3910 3911 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3912 if (WARN_ON(!func)) { 3913 spin_unlock_bh(&sdata->u.nan.func_lock); 3914 return; 3915 } 3916 3917 cookie = func->cookie; 3918 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3919 3920 spin_unlock_bh(&sdata->u.nan.func_lock); 3921 3922 cfg80211_free_nan_func(func); 3923 3924 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3925 reason, cookie, gfp); 3926 } 3927 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3928 3929 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3930 struct cfg80211_nan_match_params *match, 3931 gfp_t gfp) 3932 { 3933 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3934 struct cfg80211_nan_func *func; 3935 3936 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3937 return; 3938 3939 spin_lock_bh(&sdata->u.nan.func_lock); 3940 3941 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3942 if (WARN_ON(!func)) { 3943 spin_unlock_bh(&sdata->u.nan.func_lock); 3944 return; 3945 } 3946 match->cookie = func->cookie; 3947 3948 spin_unlock_bh(&sdata->u.nan.func_lock); 3949 3950 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3951 } 3952 EXPORT_SYMBOL(ieee80211_nan_func_match); 3953 3954 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3955 struct net_device *dev, 3956 const bool enabled) 3957 { 3958 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3959 3960 sdata->u.ap.multicast_to_unicast = enabled; 3961 3962 return 0; 3963 } 3964 3965 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3966 struct txq_info *txqi) 3967 { 3968 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3969 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3970 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3971 } 3972 3973 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3974 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3975 txqstats->backlog_packets = txqi->tin.backlog_packets; 3976 } 3977 3978 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3979 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3980 txqstats->flows = txqi->tin.flows; 3981 } 3982 3983 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3984 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3985 txqstats->drops = txqi->cstats.drop_count; 3986 } 3987 3988 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3989 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3990 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3991 } 3992 3993 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3994 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3995 txqstats->overlimit = txqi->tin.overlimit; 3996 } 3997 3998 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3999 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 4000 txqstats->collisions = txqi->tin.collisions; 4001 } 4002 4003 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 4004 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 4005 txqstats->tx_bytes = txqi->tin.tx_bytes; 4006 } 4007 4008 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 4009 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 4010 txqstats->tx_packets = txqi->tin.tx_packets; 4011 } 4012 } 4013 4014 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 4015 struct wireless_dev *wdev, 4016 struct cfg80211_txq_stats *txqstats) 4017 { 4018 struct ieee80211_local *local = wiphy_priv(wiphy); 4019 struct ieee80211_sub_if_data *sdata; 4020 int ret = 0; 4021 4022 if (!local->ops->wake_tx_queue) 4023 return 1; 4024 4025 spin_lock_bh(&local->fq.lock); 4026 rcu_read_lock(); 4027 4028 if (wdev) { 4029 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 4030 if (!sdata->vif.txq) { 4031 ret = 1; 4032 goto out; 4033 } 4034 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 4035 } else { 4036 /* phy stats */ 4037 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 4038 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 4039 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 4040 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 4041 BIT(NL80211_TXQ_STATS_COLLISIONS) | 4042 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 4043 txqstats->backlog_packets = local->fq.backlog; 4044 txqstats->backlog_bytes = local->fq.memory_usage; 4045 txqstats->overlimit = local->fq.overlimit; 4046 txqstats->overmemory = local->fq.overmemory; 4047 txqstats->collisions = local->fq.collisions; 4048 txqstats->max_flows = local->fq.flows_cnt; 4049 } 4050 4051 out: 4052 rcu_read_unlock(); 4053 spin_unlock_bh(&local->fq.lock); 4054 4055 return ret; 4056 } 4057 4058 static int 4059 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 4060 struct net_device *dev, 4061 struct cfg80211_ftm_responder_stats *ftm_stats) 4062 { 4063 struct ieee80211_local *local = wiphy_priv(wiphy); 4064 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4065 4066 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 4067 } 4068 4069 static int 4070 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4071 struct cfg80211_pmsr_request *request) 4072 { 4073 struct ieee80211_local *local = wiphy_priv(wiphy); 4074 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4075 4076 return drv_start_pmsr(local, sdata, request); 4077 } 4078 4079 static void 4080 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 4081 struct cfg80211_pmsr_request *request) 4082 { 4083 struct ieee80211_local *local = wiphy_priv(wiphy); 4084 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 4085 4086 return drv_abort_pmsr(local, sdata, request); 4087 } 4088 4089 static int ieee80211_set_tid_config(struct wiphy *wiphy, 4090 struct net_device *dev, 4091 struct cfg80211_tid_config *tid_conf) 4092 { 4093 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4094 struct sta_info *sta; 4095 int ret; 4096 4097 if (!sdata->local->ops->set_tid_config) 4098 return -EOPNOTSUPP; 4099 4100 if (!tid_conf->peer) 4101 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 4102 4103 mutex_lock(&sdata->local->sta_mtx); 4104 sta = sta_info_get_bss(sdata, tid_conf->peer); 4105 if (!sta) { 4106 mutex_unlock(&sdata->local->sta_mtx); 4107 return -ENOENT; 4108 } 4109 4110 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 4111 mutex_unlock(&sdata->local->sta_mtx); 4112 4113 return ret; 4114 } 4115 4116 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 4117 struct net_device *dev, 4118 const u8 *peer, u8 tids) 4119 { 4120 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4121 struct sta_info *sta; 4122 int ret; 4123 4124 if (!sdata->local->ops->reset_tid_config) 4125 return -EOPNOTSUPP; 4126 4127 if (!peer) 4128 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 4129 4130 mutex_lock(&sdata->local->sta_mtx); 4131 sta = sta_info_get_bss(sdata, peer); 4132 if (!sta) { 4133 mutex_unlock(&sdata->local->sta_mtx); 4134 return -ENOENT; 4135 } 4136 4137 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 4138 mutex_unlock(&sdata->local->sta_mtx); 4139 4140 return ret; 4141 } 4142 4143 static int ieee80211_set_sar_specs(struct wiphy *wiphy, 4144 struct cfg80211_sar_specs *sar) 4145 { 4146 struct ieee80211_local *local = wiphy_priv(wiphy); 4147 4148 if (!local->ops->set_sar_specs) 4149 return -EOPNOTSUPP; 4150 4151 return local->ops->set_sar_specs(&local->hw, sar); 4152 } 4153 4154 static int 4155 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4156 u32 *changed) 4157 { 4158 switch (sdata->vif.type) { 4159 case NL80211_IFTYPE_AP: { 4160 int ret; 4161 4162 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 4163 NULL, NULL); 4164 kfree(sdata->u.ap.next_beacon); 4165 sdata->u.ap.next_beacon = NULL; 4166 4167 if (ret < 0) 4168 return ret; 4169 4170 *changed |= ret; 4171 break; 4172 } 4173 default: 4174 WARN_ON_ONCE(1); 4175 return -EINVAL; 4176 } 4177 4178 return 0; 4179 } 4180 4181 static int 4182 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, 4183 struct cfg80211_color_change_settings *params, 4184 u32 *changed) 4185 { 4186 struct ieee80211_color_change_settings color_change = {}; 4187 int err; 4188 4189 switch (sdata->vif.type) { 4190 case NL80211_IFTYPE_AP: 4191 sdata->u.ap.next_beacon = 4192 cfg80211_beacon_dup(¶ms->beacon_next); 4193 if (!sdata->u.ap.next_beacon) 4194 return -ENOMEM; 4195 4196 if (params->count <= 1) 4197 break; 4198 4199 color_change.counter_offset_beacon = 4200 params->counter_offset_beacon; 4201 color_change.counter_offset_presp = 4202 params->counter_offset_presp; 4203 color_change.count = params->count; 4204 4205 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change, 4206 NULL, &color_change); 4207 if (err < 0) { 4208 kfree(sdata->u.ap.next_beacon); 4209 return err; 4210 } 4211 *changed |= err; 4212 break; 4213 default: 4214 return -EOPNOTSUPP; 4215 } 4216 4217 return 0; 4218 } 4219 4220 static void 4221 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, 4222 u8 color, int enable, u32 changed) 4223 { 4224 sdata->vif.bss_conf.he_bss_color.color = color; 4225 sdata->vif.bss_conf.he_bss_color.enabled = enable; 4226 changed |= BSS_CHANGED_HE_BSS_COLOR; 4227 4228 ieee80211_bss_info_change_notify(sdata, changed); 4229 } 4230 4231 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) 4232 { 4233 struct ieee80211_local *local = sdata->local; 4234 u32 changed = 0; 4235 int err; 4236 4237 sdata_assert_lock(sdata); 4238 lockdep_assert_held(&local->mtx); 4239 4240 sdata->vif.color_change_active = false; 4241 4242 err = ieee80211_set_after_color_change_beacon(sdata, &changed); 4243 if (err) { 4244 cfg80211_color_change_aborted_notify(sdata->dev); 4245 return err; 4246 } 4247 4248 ieee80211_color_change_bss_config_notify(sdata, 4249 sdata->vif.color_change_color, 4250 1, changed); 4251 cfg80211_color_change_notify(sdata->dev); 4252 4253 return 0; 4254 } 4255 4256 void ieee80211_color_change_finalize_work(struct work_struct *work) 4257 { 4258 struct ieee80211_sub_if_data *sdata = 4259 container_of(work, struct ieee80211_sub_if_data, 4260 color_change_finalize_work); 4261 struct ieee80211_local *local = sdata->local; 4262 4263 sdata_lock(sdata); 4264 mutex_lock(&local->mtx); 4265 4266 /* AP might have been stopped while waiting for the lock. */ 4267 if (!sdata->vif.color_change_active) 4268 goto unlock; 4269 4270 if (!ieee80211_sdata_running(sdata)) 4271 goto unlock; 4272 4273 ieee80211_color_change_finalize(sdata); 4274 4275 unlock: 4276 mutex_unlock(&local->mtx); 4277 sdata_unlock(sdata); 4278 } 4279 4280 void ieee80211_color_change_finish(struct ieee80211_vif *vif) 4281 { 4282 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4283 4284 ieee80211_queue_work(&sdata->local->hw, 4285 &sdata->color_change_finalize_work); 4286 } 4287 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); 4288 4289 void 4290 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif, 4291 u64 color_bitmap) 4292 { 4293 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 4294 4295 if (sdata->vif.color_change_active || sdata->vif.csa_active) 4296 return; 4297 4298 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap); 4299 } 4300 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify); 4301 4302 static int 4303 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, 4304 struct cfg80211_color_change_settings *params) 4305 { 4306 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 4307 struct ieee80211_local *local = sdata->local; 4308 u32 changed = 0; 4309 int err; 4310 4311 sdata_assert_lock(sdata); 4312 4313 mutex_lock(&local->mtx); 4314 4315 /* don't allow another color change if one is already active or if csa 4316 * is active 4317 */ 4318 if (sdata->vif.color_change_active || sdata->vif.csa_active) { 4319 err = -EBUSY; 4320 goto out; 4321 } 4322 4323 err = ieee80211_set_color_change_beacon(sdata, params, &changed); 4324 if (err) 4325 goto out; 4326 4327 sdata->vif.color_change_active = true; 4328 sdata->vif.color_change_color = params->color; 4329 4330 cfg80211_color_change_started_notify(sdata->dev, params->count); 4331 4332 if (changed) 4333 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed); 4334 else 4335 /* if the beacon didn't change, we can finalize immediately */ 4336 ieee80211_color_change_finalize(sdata); 4337 4338 out: 4339 mutex_unlock(&local->mtx); 4340 4341 return err; 4342 } 4343 4344 const struct cfg80211_ops mac80211_config_ops = { 4345 .add_virtual_intf = ieee80211_add_iface, 4346 .del_virtual_intf = ieee80211_del_iface, 4347 .change_virtual_intf = ieee80211_change_iface, 4348 .start_p2p_device = ieee80211_start_p2p_device, 4349 .stop_p2p_device = ieee80211_stop_p2p_device, 4350 .add_key = ieee80211_add_key, 4351 .del_key = ieee80211_del_key, 4352 .get_key = ieee80211_get_key, 4353 .set_default_key = ieee80211_config_default_key, 4354 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4355 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4356 .start_ap = ieee80211_start_ap, 4357 .change_beacon = ieee80211_change_beacon, 4358 .stop_ap = ieee80211_stop_ap, 4359 .add_station = ieee80211_add_station, 4360 .del_station = ieee80211_del_station, 4361 .change_station = ieee80211_change_station, 4362 .get_station = ieee80211_get_station, 4363 .dump_station = ieee80211_dump_station, 4364 .dump_survey = ieee80211_dump_survey, 4365 #ifdef CONFIG_MAC80211_MESH 4366 .add_mpath = ieee80211_add_mpath, 4367 .del_mpath = ieee80211_del_mpath, 4368 .change_mpath = ieee80211_change_mpath, 4369 .get_mpath = ieee80211_get_mpath, 4370 .dump_mpath = ieee80211_dump_mpath, 4371 .get_mpp = ieee80211_get_mpp, 4372 .dump_mpp = ieee80211_dump_mpp, 4373 .update_mesh_config = ieee80211_update_mesh_config, 4374 .get_mesh_config = ieee80211_get_mesh_config, 4375 .join_mesh = ieee80211_join_mesh, 4376 .leave_mesh = ieee80211_leave_mesh, 4377 #endif 4378 .join_ocb = ieee80211_join_ocb, 4379 .leave_ocb = ieee80211_leave_ocb, 4380 .change_bss = ieee80211_change_bss, 4381 .set_txq_params = ieee80211_set_txq_params, 4382 .set_monitor_channel = ieee80211_set_monitor_channel, 4383 .suspend = ieee80211_suspend, 4384 .resume = ieee80211_resume, 4385 .scan = ieee80211_scan, 4386 .abort_scan = ieee80211_abort_scan, 4387 .sched_scan_start = ieee80211_sched_scan_start, 4388 .sched_scan_stop = ieee80211_sched_scan_stop, 4389 .auth = ieee80211_auth, 4390 .assoc = ieee80211_assoc, 4391 .deauth = ieee80211_deauth, 4392 .disassoc = ieee80211_disassoc, 4393 .join_ibss = ieee80211_join_ibss, 4394 .leave_ibss = ieee80211_leave_ibss, 4395 .set_mcast_rate = ieee80211_set_mcast_rate, 4396 .set_wiphy_params = ieee80211_set_wiphy_params, 4397 .set_tx_power = ieee80211_set_tx_power, 4398 .get_tx_power = ieee80211_get_tx_power, 4399 .rfkill_poll = ieee80211_rfkill_poll, 4400 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4401 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4402 .set_power_mgmt = ieee80211_set_power_mgmt, 4403 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4404 .remain_on_channel = ieee80211_remain_on_channel, 4405 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4406 .mgmt_tx = ieee80211_mgmt_tx, 4407 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4408 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4409 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4410 .update_mgmt_frame_registrations = 4411 ieee80211_update_mgmt_frame_registrations, 4412 .set_antenna = ieee80211_set_antenna, 4413 .get_antenna = ieee80211_get_antenna, 4414 .set_rekey_data = ieee80211_set_rekey_data, 4415 .tdls_oper = ieee80211_tdls_oper, 4416 .tdls_mgmt = ieee80211_tdls_mgmt, 4417 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4418 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4419 .probe_client = ieee80211_probe_client, 4420 .set_noack_map = ieee80211_set_noack_map, 4421 #ifdef CONFIG_PM 4422 .set_wakeup = ieee80211_set_wakeup, 4423 #endif 4424 .get_channel = ieee80211_cfg_get_channel, 4425 .start_radar_detection = ieee80211_start_radar_detection, 4426 .end_cac = ieee80211_end_cac, 4427 .channel_switch = ieee80211_channel_switch, 4428 .set_qos_map = ieee80211_set_qos_map, 4429 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4430 .add_tx_ts = ieee80211_add_tx_ts, 4431 .del_tx_ts = ieee80211_del_tx_ts, 4432 .start_nan = ieee80211_start_nan, 4433 .stop_nan = ieee80211_stop_nan, 4434 .nan_change_conf = ieee80211_nan_change_conf, 4435 .add_nan_func = ieee80211_add_nan_func, 4436 .del_nan_func = ieee80211_del_nan_func, 4437 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4438 .tx_control_port = ieee80211_tx_control_port, 4439 .get_txq_stats = ieee80211_get_txq_stats, 4440 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4441 .start_pmsr = ieee80211_start_pmsr, 4442 .abort_pmsr = ieee80211_abort_pmsr, 4443 .probe_mesh_link = ieee80211_probe_mesh_link, 4444 .set_tid_config = ieee80211_set_tid_config, 4445 .reset_tid_config = ieee80211_reset_tid_config, 4446 .set_sar_specs = ieee80211_set_sar_specs, 4447 .color_change = ieee80211_color_change, 4448 }; 4449