1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2015 Intel Mobile Communications GmbH 6 * Copyright (C) 2015-2017 Intel Deutschland GmbH 7 * 8 * This file is GPLv2 as found in COPYING. 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/if_ether.h> 18 #include <net/cfg80211.h> 19 #include "ieee80211_i.h" 20 #include "driver-ops.h" 21 #include "rate.h" 22 #include "mesh.h" 23 #include "wme.h" 24 25 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 26 struct vif_params *params) 27 { 28 bool mu_mimo_groups = false; 29 bool mu_mimo_follow = false; 30 31 if (params->vht_mumimo_groups) { 32 u64 membership; 33 34 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 35 36 memcpy(sdata->vif.bss_conf.mu_group.membership, 37 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 38 memcpy(sdata->vif.bss_conf.mu_group.position, 39 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 40 WLAN_USER_POSITION_LEN); 41 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 42 /* don't care about endianness - just check for 0 */ 43 memcpy(&membership, params->vht_mumimo_groups, 44 WLAN_MEMBERSHIP_LEN); 45 mu_mimo_groups = membership != 0; 46 } 47 48 if (params->vht_mumimo_follow_addr) { 49 mu_mimo_follow = 50 is_valid_ether_addr(params->vht_mumimo_follow_addr); 51 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 52 params->vht_mumimo_follow_addr); 53 } 54 55 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 56 } 57 58 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 59 struct vif_params *params) 60 { 61 struct ieee80211_local *local = sdata->local; 62 struct ieee80211_sub_if_data *monitor_sdata; 63 64 /* check flags first */ 65 if (params->flags && ieee80211_sdata_running(sdata)) { 66 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 67 68 /* 69 * Prohibit MONITOR_FLAG_COOK_FRAMES and 70 * MONITOR_FLAG_ACTIVE to be changed while the 71 * interface is up. 72 * Else we would need to add a lot of cruft 73 * to update everything: 74 * cooked_mntrs, monitor and all fif_* counters 75 * reconfigure hardware 76 */ 77 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 78 return -EBUSY; 79 } 80 81 /* also validate MU-MIMO change */ 82 monitor_sdata = rtnl_dereference(local->monitor_sdata); 83 84 if (!monitor_sdata && 85 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 86 return -EOPNOTSUPP; 87 88 /* apply all changes now - no failures allowed */ 89 90 if (monitor_sdata) 91 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 92 93 if (params->flags) { 94 if (ieee80211_sdata_running(sdata)) { 95 ieee80211_adjust_monitor_flags(sdata, -1); 96 sdata->u.mntr.flags = params->flags; 97 ieee80211_adjust_monitor_flags(sdata, 1); 98 99 ieee80211_configure_filter(local); 100 } else { 101 /* 102 * Because the interface is down, ieee80211_do_stop 103 * and ieee80211_do_open take care of "everything" 104 * mentioned in the comment above. 105 */ 106 sdata->u.mntr.flags = params->flags; 107 } 108 } 109 110 return 0; 111 } 112 113 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 114 const char *name, 115 unsigned char name_assign_type, 116 enum nl80211_iftype type, 117 struct vif_params *params) 118 { 119 struct ieee80211_local *local = wiphy_priv(wiphy); 120 struct wireless_dev *wdev; 121 struct ieee80211_sub_if_data *sdata; 122 int err; 123 124 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 125 if (err) 126 return ERR_PTR(err); 127 128 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 129 130 if (type == NL80211_IFTYPE_MONITOR) { 131 err = ieee80211_set_mon_options(sdata, params); 132 if (err) { 133 ieee80211_if_remove(sdata); 134 return NULL; 135 } 136 } 137 138 return wdev; 139 } 140 141 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 142 { 143 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 144 145 return 0; 146 } 147 148 static int ieee80211_change_iface(struct wiphy *wiphy, 149 struct net_device *dev, 150 enum nl80211_iftype type, 151 struct vif_params *params) 152 { 153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 154 int ret; 155 156 ret = ieee80211_if_change_type(sdata, type); 157 if (ret) 158 return ret; 159 160 if (type == NL80211_IFTYPE_AP_VLAN && 161 params && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && 165 params && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 356 u8 key_idx, bool pairwise, const u8 *mac_addr, 357 struct key_params *params) 358 { 359 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 360 struct ieee80211_local *local = sdata->local; 361 struct sta_info *sta = NULL; 362 const struct ieee80211_cipher_scheme *cs = NULL; 363 struct ieee80211_key *key; 364 int err; 365 366 if (!ieee80211_sdata_running(sdata)) 367 return -ENETDOWN; 368 369 /* reject WEP and TKIP keys if WEP failed to initialize */ 370 switch (params->cipher) { 371 case WLAN_CIPHER_SUITE_WEP40: 372 case WLAN_CIPHER_SUITE_TKIP: 373 case WLAN_CIPHER_SUITE_WEP104: 374 if (IS_ERR(local->wep_tx_tfm)) 375 return -EINVAL; 376 break; 377 case WLAN_CIPHER_SUITE_CCMP: 378 case WLAN_CIPHER_SUITE_CCMP_256: 379 case WLAN_CIPHER_SUITE_AES_CMAC: 380 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 381 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 382 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 383 case WLAN_CIPHER_SUITE_GCMP: 384 case WLAN_CIPHER_SUITE_GCMP_256: 385 break; 386 default: 387 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 388 break; 389 } 390 391 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 392 params->key, params->seq_len, params->seq, 393 cs); 394 if (IS_ERR(key)) 395 return PTR_ERR(key); 396 397 if (pairwise) 398 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 399 400 mutex_lock(&local->sta_mtx); 401 402 if (mac_addr) { 403 sta = sta_info_get_bss(sdata, mac_addr); 404 /* 405 * The ASSOC test makes sure the driver is ready to 406 * receive the key. When wpa_supplicant has roamed 407 * using FT, it attempts to set the key before 408 * association has completed, this rejects that attempt 409 * so it will set the key again after association. 410 * 411 * TODO: accept the key if we have a station entry and 412 * add it to the device after the station. 413 */ 414 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 415 ieee80211_key_free_unused(key); 416 err = -ENOENT; 417 goto out_unlock; 418 } 419 } 420 421 switch (sdata->vif.type) { 422 case NL80211_IFTYPE_STATION: 423 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 424 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 425 break; 426 case NL80211_IFTYPE_AP: 427 case NL80211_IFTYPE_AP_VLAN: 428 /* Keys without a station are used for TX only */ 429 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 430 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 431 break; 432 case NL80211_IFTYPE_ADHOC: 433 /* no MFP (yet) */ 434 break; 435 case NL80211_IFTYPE_MESH_POINT: 436 #ifdef CONFIG_MAC80211_MESH 437 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 438 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 439 break; 440 #endif 441 case NL80211_IFTYPE_WDS: 442 case NL80211_IFTYPE_MONITOR: 443 case NL80211_IFTYPE_P2P_DEVICE: 444 case NL80211_IFTYPE_NAN: 445 case NL80211_IFTYPE_UNSPECIFIED: 446 case NUM_NL80211_IFTYPES: 447 case NL80211_IFTYPE_P2P_CLIENT: 448 case NL80211_IFTYPE_P2P_GO: 449 case NL80211_IFTYPE_OCB: 450 /* shouldn't happen */ 451 WARN_ON_ONCE(1); 452 break; 453 } 454 455 if (sta) 456 sta->cipher_scheme = cs; 457 458 err = ieee80211_key_link(key, sdata, sta); 459 460 out_unlock: 461 mutex_unlock(&local->sta_mtx); 462 463 return err; 464 } 465 466 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 467 u8 key_idx, bool pairwise, const u8 *mac_addr) 468 { 469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 470 struct ieee80211_local *local = sdata->local; 471 struct sta_info *sta; 472 struct ieee80211_key *key = NULL; 473 int ret; 474 475 mutex_lock(&local->sta_mtx); 476 mutex_lock(&local->key_mtx); 477 478 if (mac_addr) { 479 ret = -ENOENT; 480 481 sta = sta_info_get_bss(sdata, mac_addr); 482 if (!sta) 483 goto out_unlock; 484 485 if (pairwise) 486 key = key_mtx_dereference(local, sta->ptk[key_idx]); 487 else 488 key = key_mtx_dereference(local, sta->gtk[key_idx]); 489 } else 490 key = key_mtx_dereference(local, sdata->keys[key_idx]); 491 492 if (!key) { 493 ret = -ENOENT; 494 goto out_unlock; 495 } 496 497 ieee80211_key_free(key, true); 498 499 ret = 0; 500 out_unlock: 501 mutex_unlock(&local->key_mtx); 502 mutex_unlock(&local->sta_mtx); 503 504 return ret; 505 } 506 507 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 508 u8 key_idx, bool pairwise, const u8 *mac_addr, 509 void *cookie, 510 void (*callback)(void *cookie, 511 struct key_params *params)) 512 { 513 struct ieee80211_sub_if_data *sdata; 514 struct sta_info *sta = NULL; 515 u8 seq[6] = {0}; 516 struct key_params params; 517 struct ieee80211_key *key = NULL; 518 u64 pn64; 519 u32 iv32; 520 u16 iv16; 521 int err = -ENOENT; 522 struct ieee80211_key_seq kseq = {}; 523 524 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 525 526 rcu_read_lock(); 527 528 if (mac_addr) { 529 sta = sta_info_get_bss(sdata, mac_addr); 530 if (!sta) 531 goto out; 532 533 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 534 key = rcu_dereference(sta->ptk[key_idx]); 535 else if (!pairwise && 536 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 537 key = rcu_dereference(sta->gtk[key_idx]); 538 } else 539 key = rcu_dereference(sdata->keys[key_idx]); 540 541 if (!key) 542 goto out; 543 544 memset(¶ms, 0, sizeof(params)); 545 546 params.cipher = key->conf.cipher; 547 548 switch (key->conf.cipher) { 549 case WLAN_CIPHER_SUITE_TKIP: 550 pn64 = atomic64_read(&key->conf.tx_pn); 551 iv32 = TKIP_PN_TO_IV32(pn64); 552 iv16 = TKIP_PN_TO_IV16(pn64); 553 554 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 555 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 556 drv_get_key_seq(sdata->local, key, &kseq); 557 iv32 = kseq.tkip.iv32; 558 iv16 = kseq.tkip.iv16; 559 } 560 561 seq[0] = iv16 & 0xff; 562 seq[1] = (iv16 >> 8) & 0xff; 563 seq[2] = iv32 & 0xff; 564 seq[3] = (iv32 >> 8) & 0xff; 565 seq[4] = (iv32 >> 16) & 0xff; 566 seq[5] = (iv32 >> 24) & 0xff; 567 params.seq = seq; 568 params.seq_len = 6; 569 break; 570 case WLAN_CIPHER_SUITE_CCMP: 571 case WLAN_CIPHER_SUITE_CCMP_256: 572 case WLAN_CIPHER_SUITE_AES_CMAC: 573 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 574 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 575 offsetof(typeof(kseq), aes_cmac)); 576 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 577 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 579 offsetof(typeof(kseq), aes_gmac)); 580 case WLAN_CIPHER_SUITE_GCMP: 581 case WLAN_CIPHER_SUITE_GCMP_256: 582 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 583 offsetof(typeof(kseq), gcmp)); 584 585 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 586 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 587 drv_get_key_seq(sdata->local, key, &kseq); 588 memcpy(seq, kseq.ccmp.pn, 6); 589 } else { 590 pn64 = atomic64_read(&key->conf.tx_pn); 591 seq[0] = pn64; 592 seq[1] = pn64 >> 8; 593 seq[2] = pn64 >> 16; 594 seq[3] = pn64 >> 24; 595 seq[4] = pn64 >> 32; 596 seq[5] = pn64 >> 40; 597 } 598 params.seq = seq; 599 params.seq_len = 6; 600 break; 601 default: 602 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 603 break; 604 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 605 break; 606 drv_get_key_seq(sdata->local, key, &kseq); 607 params.seq = kseq.hw.seq; 608 params.seq_len = kseq.hw.seq_len; 609 break; 610 } 611 612 params.key = key->conf.key; 613 params.key_len = key->conf.keylen; 614 615 callback(cookie, ¶ms); 616 err = 0; 617 618 out: 619 rcu_read_unlock(); 620 return err; 621 } 622 623 static int ieee80211_config_default_key(struct wiphy *wiphy, 624 struct net_device *dev, 625 u8 key_idx, bool uni, 626 bool multi) 627 { 628 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 629 630 ieee80211_set_default_key(sdata, key_idx, uni, multi); 631 632 return 0; 633 } 634 635 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 636 struct net_device *dev, 637 u8 key_idx) 638 { 639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 640 641 ieee80211_set_default_mgmt_key(sdata, key_idx); 642 643 return 0; 644 } 645 646 void sta_set_rate_info_tx(struct sta_info *sta, 647 const struct ieee80211_tx_rate *rate, 648 struct rate_info *rinfo) 649 { 650 rinfo->flags = 0; 651 if (rate->flags & IEEE80211_TX_RC_MCS) { 652 rinfo->flags |= RATE_INFO_FLAGS_MCS; 653 rinfo->mcs = rate->idx; 654 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 655 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 656 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 657 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 658 } else { 659 struct ieee80211_supported_band *sband; 660 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 661 u16 brate; 662 663 sband = ieee80211_get_sband(sta->sdata); 664 if (sband) { 665 brate = sband->bitrates[rate->idx].bitrate; 666 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 667 } 668 } 669 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 670 rinfo->bw = RATE_INFO_BW_40; 671 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 672 rinfo->bw = RATE_INFO_BW_80; 673 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 674 rinfo->bw = RATE_INFO_BW_160; 675 else 676 rinfo->bw = RATE_INFO_BW_20; 677 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 678 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 679 } 680 681 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 682 int idx, u8 *mac, struct station_info *sinfo) 683 { 684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 685 struct ieee80211_local *local = sdata->local; 686 struct sta_info *sta; 687 int ret = -ENOENT; 688 689 mutex_lock(&local->sta_mtx); 690 691 sta = sta_info_get_by_idx(sdata, idx); 692 if (sta) { 693 ret = 0; 694 memcpy(mac, sta->sta.addr, ETH_ALEN); 695 sta_set_sinfo(sta, sinfo); 696 } 697 698 mutex_unlock(&local->sta_mtx); 699 700 return ret; 701 } 702 703 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 704 int idx, struct survey_info *survey) 705 { 706 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 707 708 return drv_get_survey(local, idx, survey); 709 } 710 711 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 712 const u8 *mac, struct station_info *sinfo) 713 { 714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 715 struct ieee80211_local *local = sdata->local; 716 struct sta_info *sta; 717 int ret = -ENOENT; 718 719 mutex_lock(&local->sta_mtx); 720 721 sta = sta_info_get_bss(sdata, mac); 722 if (sta) { 723 ret = 0; 724 sta_set_sinfo(sta, sinfo); 725 } 726 727 mutex_unlock(&local->sta_mtx); 728 729 return ret; 730 } 731 732 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 733 struct cfg80211_chan_def *chandef) 734 { 735 struct ieee80211_local *local = wiphy_priv(wiphy); 736 struct ieee80211_sub_if_data *sdata; 737 int ret = 0; 738 739 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 740 return 0; 741 742 mutex_lock(&local->mtx); 743 if (local->use_chanctx) { 744 sdata = rtnl_dereference(local->monitor_sdata); 745 if (sdata) { 746 ieee80211_vif_release_channel(sdata); 747 ret = ieee80211_vif_use_channel(sdata, chandef, 748 IEEE80211_CHANCTX_EXCLUSIVE); 749 } 750 } else if (local->open_count == local->monitors) { 751 local->_oper_chandef = *chandef; 752 ieee80211_hw_config(local, 0); 753 } 754 755 if (ret == 0) 756 local->monitor_chandef = *chandef; 757 mutex_unlock(&local->mtx); 758 759 return ret; 760 } 761 762 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 763 const u8 *resp, size_t resp_len, 764 const struct ieee80211_csa_settings *csa) 765 { 766 struct probe_resp *new, *old; 767 768 if (!resp || !resp_len) 769 return 1; 770 771 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 772 773 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 774 if (!new) 775 return -ENOMEM; 776 777 new->len = resp_len; 778 memcpy(new->data, resp, resp_len); 779 780 if (csa) 781 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 782 csa->n_counter_offsets_presp * 783 sizeof(new->csa_counter_offsets[0])); 784 785 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 786 if (old) 787 kfree_rcu(old, rcu_head); 788 789 return 0; 790 } 791 792 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 793 struct cfg80211_beacon_data *params, 794 const struct ieee80211_csa_settings *csa) 795 { 796 struct beacon_data *new, *old; 797 int new_head_len, new_tail_len; 798 int size, err; 799 u32 changed = BSS_CHANGED_BEACON; 800 801 old = sdata_dereference(sdata->u.ap.beacon, sdata); 802 803 804 /* Need to have a beacon head if we don't have one yet */ 805 if (!params->head && !old) 806 return -EINVAL; 807 808 /* new or old head? */ 809 if (params->head) 810 new_head_len = params->head_len; 811 else 812 new_head_len = old->head_len; 813 814 /* new or old tail? */ 815 if (params->tail || !old) 816 /* params->tail_len will be zero for !params->tail */ 817 new_tail_len = params->tail_len; 818 else 819 new_tail_len = old->tail_len; 820 821 size = sizeof(*new) + new_head_len + new_tail_len; 822 823 new = kzalloc(size, GFP_KERNEL); 824 if (!new) 825 return -ENOMEM; 826 827 /* start filling the new info now */ 828 829 /* 830 * pointers go into the block we allocated, 831 * memory is | beacon_data | head | tail | 832 */ 833 new->head = ((u8 *) new) + sizeof(*new); 834 new->tail = new->head + new_head_len; 835 new->head_len = new_head_len; 836 new->tail_len = new_tail_len; 837 838 if (csa) { 839 new->csa_current_counter = csa->count; 840 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 841 csa->n_counter_offsets_beacon * 842 sizeof(new->csa_counter_offsets[0])); 843 } 844 845 /* copy in head */ 846 if (params->head) 847 memcpy(new->head, params->head, new_head_len); 848 else 849 memcpy(new->head, old->head, new_head_len); 850 851 /* copy in optional tail */ 852 if (params->tail) 853 memcpy(new->tail, params->tail, new_tail_len); 854 else 855 if (old) 856 memcpy(new->tail, old->tail, new_tail_len); 857 858 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 859 params->probe_resp_len, csa); 860 if (err < 0) 861 return err; 862 if (err == 0) 863 changed |= BSS_CHANGED_AP_PROBE_RESP; 864 865 rcu_assign_pointer(sdata->u.ap.beacon, new); 866 867 if (old) 868 kfree_rcu(old, rcu_head); 869 870 return changed; 871 } 872 873 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 874 struct cfg80211_ap_settings *params) 875 { 876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 877 struct ieee80211_local *local = sdata->local; 878 struct beacon_data *old; 879 struct ieee80211_sub_if_data *vlan; 880 u32 changed = BSS_CHANGED_BEACON_INT | 881 BSS_CHANGED_BEACON_ENABLED | 882 BSS_CHANGED_BEACON | 883 BSS_CHANGED_SSID | 884 BSS_CHANGED_P2P_PS | 885 BSS_CHANGED_TXPOWER; 886 int err; 887 888 old = sdata_dereference(sdata->u.ap.beacon, sdata); 889 if (old) 890 return -EALREADY; 891 892 switch (params->smps_mode) { 893 case NL80211_SMPS_OFF: 894 sdata->smps_mode = IEEE80211_SMPS_OFF; 895 break; 896 case NL80211_SMPS_STATIC: 897 sdata->smps_mode = IEEE80211_SMPS_STATIC; 898 break; 899 case NL80211_SMPS_DYNAMIC: 900 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 901 break; 902 default: 903 return -EINVAL; 904 } 905 sdata->u.ap.req_smps = sdata->smps_mode; 906 907 sdata->needed_rx_chains = sdata->local->rx_chains; 908 909 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 910 911 mutex_lock(&local->mtx); 912 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 913 IEEE80211_CHANCTX_SHARED); 914 if (!err) 915 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 916 mutex_unlock(&local->mtx); 917 if (err) 918 return err; 919 920 /* 921 * Apply control port protocol, this allows us to 922 * not encrypt dynamic WEP control frames. 923 */ 924 sdata->control_port_protocol = params->crypto.control_port_ethertype; 925 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 926 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 927 ¶ms->crypto, 928 sdata->vif.type); 929 930 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 931 vlan->control_port_protocol = 932 params->crypto.control_port_ethertype; 933 vlan->control_port_no_encrypt = 934 params->crypto.control_port_no_encrypt; 935 vlan->encrypt_headroom = 936 ieee80211_cs_headroom(sdata->local, 937 ¶ms->crypto, 938 vlan->vif.type); 939 } 940 941 sdata->vif.bss_conf.dtim_period = params->dtim_period; 942 sdata->vif.bss_conf.enable_beacon = true; 943 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 944 945 sdata->vif.bss_conf.ssid_len = params->ssid_len; 946 if (params->ssid_len) 947 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 948 params->ssid_len); 949 sdata->vif.bss_conf.hidden_ssid = 950 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 951 952 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 953 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 954 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 955 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 956 if (params->p2p_opp_ps) 957 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 958 IEEE80211_P2P_OPPPS_ENABLE_BIT; 959 960 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 961 if (err < 0) { 962 ieee80211_vif_release_channel(sdata); 963 return err; 964 } 965 changed |= err; 966 967 err = drv_start_ap(sdata->local, sdata); 968 if (err) { 969 old = sdata_dereference(sdata->u.ap.beacon, sdata); 970 971 if (old) 972 kfree_rcu(old, rcu_head); 973 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 974 ieee80211_vif_release_channel(sdata); 975 return err; 976 } 977 978 ieee80211_recalc_dtim(local, sdata); 979 ieee80211_bss_info_change_notify(sdata, changed); 980 981 netif_carrier_on(dev); 982 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 983 netif_carrier_on(vlan->dev); 984 985 return 0; 986 } 987 988 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 989 struct cfg80211_beacon_data *params) 990 { 991 struct ieee80211_sub_if_data *sdata; 992 struct beacon_data *old; 993 int err; 994 995 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 996 sdata_assert_lock(sdata); 997 998 /* don't allow changing the beacon while CSA is in place - offset 999 * of channel switch counter may change 1000 */ 1001 if (sdata->vif.csa_active) 1002 return -EBUSY; 1003 1004 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1005 if (!old) 1006 return -ENOENT; 1007 1008 err = ieee80211_assign_beacon(sdata, params, NULL); 1009 if (err < 0) 1010 return err; 1011 ieee80211_bss_info_change_notify(sdata, err); 1012 return 0; 1013 } 1014 1015 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1016 { 1017 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1018 struct ieee80211_sub_if_data *vlan; 1019 struct ieee80211_local *local = sdata->local; 1020 struct beacon_data *old_beacon; 1021 struct probe_resp *old_probe_resp; 1022 struct cfg80211_chan_def chandef; 1023 1024 sdata_assert_lock(sdata); 1025 1026 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1027 if (!old_beacon) 1028 return -ENOENT; 1029 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1030 1031 /* abort any running channel switch */ 1032 mutex_lock(&local->mtx); 1033 sdata->vif.csa_active = false; 1034 if (sdata->csa_block_tx) { 1035 ieee80211_wake_vif_queues(local, sdata, 1036 IEEE80211_QUEUE_STOP_REASON_CSA); 1037 sdata->csa_block_tx = false; 1038 } 1039 1040 mutex_unlock(&local->mtx); 1041 1042 kfree(sdata->u.ap.next_beacon); 1043 sdata->u.ap.next_beacon = NULL; 1044 1045 /* turn off carrier for this interface and dependent VLANs */ 1046 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1047 netif_carrier_off(vlan->dev); 1048 netif_carrier_off(dev); 1049 1050 /* remove beacon and probe response */ 1051 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1052 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1053 kfree_rcu(old_beacon, rcu_head); 1054 if (old_probe_resp) 1055 kfree_rcu(old_probe_resp, rcu_head); 1056 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1057 1058 __sta_info_flush(sdata, true); 1059 ieee80211_free_keys(sdata, true); 1060 1061 sdata->vif.bss_conf.enable_beacon = false; 1062 sdata->vif.bss_conf.ssid_len = 0; 1063 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1064 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1065 1066 if (sdata->wdev.cac_started) { 1067 chandef = sdata->vif.bss_conf.chandef; 1068 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1069 cfg80211_cac_event(sdata->dev, &chandef, 1070 NL80211_RADAR_CAC_ABORTED, 1071 GFP_KERNEL); 1072 } 1073 1074 drv_stop_ap(sdata->local, sdata); 1075 1076 /* free all potentially still buffered bcast frames */ 1077 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1078 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1079 1080 mutex_lock(&local->mtx); 1081 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1082 ieee80211_vif_release_channel(sdata); 1083 mutex_unlock(&local->mtx); 1084 1085 return 0; 1086 } 1087 1088 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1089 struct iapp_layer2_update { 1090 u8 da[ETH_ALEN]; /* broadcast */ 1091 u8 sa[ETH_ALEN]; /* STA addr */ 1092 __be16 len; /* 6 */ 1093 u8 dsap; /* 0 */ 1094 u8 ssap; /* 0 */ 1095 u8 control; 1096 u8 xid_info[3]; 1097 } __packed; 1098 1099 static void ieee80211_send_layer2_update(struct sta_info *sta) 1100 { 1101 struct iapp_layer2_update *msg; 1102 struct sk_buff *skb; 1103 1104 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1105 * bridge devices */ 1106 1107 skb = dev_alloc_skb(sizeof(*msg)); 1108 if (!skb) 1109 return; 1110 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 1111 1112 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1113 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1114 1115 eth_broadcast_addr(msg->da); 1116 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1117 msg->len = htons(6); 1118 msg->dsap = 0; 1119 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1120 msg->control = 0xaf; /* XID response lsb.1111F101. 1121 * F=0 (no poll command; unsolicited frame) */ 1122 msg->xid_info[0] = 0x81; /* XID format identifier */ 1123 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1124 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1125 1126 skb->dev = sta->sdata->dev; 1127 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1128 memset(skb->cb, 0, sizeof(skb->cb)); 1129 netif_rx_ni(skb); 1130 } 1131 1132 static int sta_apply_auth_flags(struct ieee80211_local *local, 1133 struct sta_info *sta, 1134 u32 mask, u32 set) 1135 { 1136 int ret; 1137 1138 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1139 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1140 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1141 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1142 if (ret) 1143 return ret; 1144 } 1145 1146 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1147 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1148 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1149 /* 1150 * When peer becomes associated, init rate control as 1151 * well. Some drivers require rate control initialized 1152 * before drv_sta_state() is called. 1153 */ 1154 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1155 rate_control_rate_init(sta); 1156 1157 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1158 if (ret) 1159 return ret; 1160 } 1161 1162 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1163 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1165 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1166 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1167 else 1168 ret = 0; 1169 if (ret) 1170 return ret; 1171 } 1172 1173 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1174 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1175 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1176 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1177 if (ret) 1178 return ret; 1179 } 1180 1181 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1182 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1183 test_sta_flag(sta, WLAN_STA_AUTH)) { 1184 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1185 if (ret) 1186 return ret; 1187 } 1188 1189 return 0; 1190 } 1191 1192 static void sta_apply_mesh_params(struct ieee80211_local *local, 1193 struct sta_info *sta, 1194 struct station_parameters *params) 1195 { 1196 #ifdef CONFIG_MAC80211_MESH 1197 struct ieee80211_sub_if_data *sdata = sta->sdata; 1198 u32 changed = 0; 1199 1200 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1201 switch (params->plink_state) { 1202 case NL80211_PLINK_ESTAB: 1203 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1204 changed = mesh_plink_inc_estab_count(sdata); 1205 sta->mesh->plink_state = params->plink_state; 1206 sta->mesh->aid = params->peer_aid; 1207 1208 ieee80211_mps_sta_status_update(sta); 1209 changed |= ieee80211_mps_set_sta_local_pm(sta, 1210 sdata->u.mesh.mshcfg.power_mode); 1211 break; 1212 case NL80211_PLINK_LISTEN: 1213 case NL80211_PLINK_BLOCKED: 1214 case NL80211_PLINK_OPN_SNT: 1215 case NL80211_PLINK_OPN_RCVD: 1216 case NL80211_PLINK_CNF_RCVD: 1217 case NL80211_PLINK_HOLDING: 1218 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1219 changed = mesh_plink_dec_estab_count(sdata); 1220 sta->mesh->plink_state = params->plink_state; 1221 1222 ieee80211_mps_sta_status_update(sta); 1223 changed |= ieee80211_mps_set_sta_local_pm(sta, 1224 NL80211_MESH_POWER_UNKNOWN); 1225 break; 1226 default: 1227 /* nothing */ 1228 break; 1229 } 1230 } 1231 1232 switch (params->plink_action) { 1233 case NL80211_PLINK_ACTION_NO_ACTION: 1234 /* nothing */ 1235 break; 1236 case NL80211_PLINK_ACTION_OPEN: 1237 changed |= mesh_plink_open(sta); 1238 break; 1239 case NL80211_PLINK_ACTION_BLOCK: 1240 changed |= mesh_plink_block(sta); 1241 break; 1242 } 1243 1244 if (params->local_pm) 1245 changed |= ieee80211_mps_set_sta_local_pm(sta, 1246 params->local_pm); 1247 1248 ieee80211_mbss_info_change_notify(sdata, changed); 1249 #endif 1250 } 1251 1252 static int sta_apply_parameters(struct ieee80211_local *local, 1253 struct sta_info *sta, 1254 struct station_parameters *params) 1255 { 1256 int ret = 0; 1257 struct ieee80211_supported_band *sband; 1258 struct ieee80211_sub_if_data *sdata = sta->sdata; 1259 u32 mask, set; 1260 1261 sband = ieee80211_get_sband(sdata); 1262 if (!sband) 1263 return -EINVAL; 1264 1265 mask = params->sta_flags_mask; 1266 set = params->sta_flags_set; 1267 1268 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1269 /* 1270 * In mesh mode, ASSOCIATED isn't part of the nl80211 1271 * API but must follow AUTHENTICATED for driver state. 1272 */ 1273 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1274 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1275 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1276 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1277 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1278 /* 1279 * TDLS -- everything follows authorized, but 1280 * only becoming authorized is possible, not 1281 * going back 1282 */ 1283 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1284 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1285 BIT(NL80211_STA_FLAG_ASSOCIATED); 1286 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1287 BIT(NL80211_STA_FLAG_ASSOCIATED); 1288 } 1289 } 1290 1291 if (mask & BIT(NL80211_STA_FLAG_WME) && 1292 local->hw.queues >= IEEE80211_NUM_ACS) 1293 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1294 1295 /* auth flags will be set later for TDLS, 1296 * and for unassociated stations that move to assocaited */ 1297 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1298 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1299 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1300 ret = sta_apply_auth_flags(local, sta, mask, set); 1301 if (ret) 1302 return ret; 1303 } 1304 1305 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1306 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1307 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1308 else 1309 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1310 } 1311 1312 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1313 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1314 if (set & BIT(NL80211_STA_FLAG_MFP)) 1315 set_sta_flag(sta, WLAN_STA_MFP); 1316 else 1317 clear_sta_flag(sta, WLAN_STA_MFP); 1318 } 1319 1320 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1321 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1322 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1323 else 1324 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1325 } 1326 1327 /* mark TDLS channel switch support, if the AP allows it */ 1328 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1329 !sdata->u.mgd.tdls_chan_switch_prohibited && 1330 params->ext_capab_len >= 4 && 1331 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1332 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1333 1334 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1335 !sdata->u.mgd.tdls_wider_bw_prohibited && 1336 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1337 params->ext_capab_len >= 8 && 1338 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1339 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1340 1341 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1342 sta->sta.uapsd_queues = params->uapsd_queues; 1343 sta->sta.max_sp = params->max_sp; 1344 } 1345 1346 /* The sender might not have sent the last bit, consider it to be 0 */ 1347 if (params->ext_capab_len >= 8) { 1348 u8 val = (params->ext_capab[7] & 1349 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1350 1351 /* we did get all the bits, take the MSB as well */ 1352 if (params->ext_capab_len >= 9) { 1353 u8 val_msb = params->ext_capab[8] & 1354 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1355 val_msb <<= 1; 1356 val |= val_msb; 1357 } 1358 1359 switch (val) { 1360 case 1: 1361 sta->sta.max_amsdu_subframes = 32; 1362 break; 1363 case 2: 1364 sta->sta.max_amsdu_subframes = 16; 1365 break; 1366 case 3: 1367 sta->sta.max_amsdu_subframes = 8; 1368 break; 1369 default: 1370 sta->sta.max_amsdu_subframes = 0; 1371 } 1372 } 1373 1374 /* 1375 * cfg80211 validates this (1-2007) and allows setting the AID 1376 * only when creating a new station entry 1377 */ 1378 if (params->aid) 1379 sta->sta.aid = params->aid; 1380 1381 /* 1382 * Some of the following updates would be racy if called on an 1383 * existing station, via ieee80211_change_station(). However, 1384 * all such changes are rejected by cfg80211 except for updates 1385 * changing the supported rates on an existing but not yet used 1386 * TDLS peer. 1387 */ 1388 1389 if (params->listen_interval >= 0) 1390 sta->listen_interval = params->listen_interval; 1391 1392 if (params->supported_rates) { 1393 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1394 sband, params->supported_rates, 1395 params->supported_rates_len, 1396 &sta->sta.supp_rates[sband->band]); 1397 } 1398 1399 if (params->ht_capa) 1400 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1401 params->ht_capa, sta); 1402 1403 /* VHT can override some HT caps such as the A-MSDU max length */ 1404 if (params->vht_capa) 1405 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1406 params->vht_capa, sta); 1407 1408 if (params->opmode_notif_used) { 1409 /* returned value is only needed for rc update, but the 1410 * rc isn't initialized here yet, so ignore it 1411 */ 1412 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1413 sband->band); 1414 } 1415 1416 if (params->support_p2p_ps >= 0) 1417 sta->sta.support_p2p_ps = params->support_p2p_ps; 1418 1419 if (ieee80211_vif_is_mesh(&sdata->vif)) 1420 sta_apply_mesh_params(local, sta, params); 1421 1422 /* set the STA state after all sta info from usermode has been set */ 1423 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1424 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1425 ret = sta_apply_auth_flags(local, sta, mask, set); 1426 if (ret) 1427 return ret; 1428 } 1429 1430 return 0; 1431 } 1432 1433 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1434 const u8 *mac, 1435 struct station_parameters *params) 1436 { 1437 struct ieee80211_local *local = wiphy_priv(wiphy); 1438 struct sta_info *sta; 1439 struct ieee80211_sub_if_data *sdata; 1440 int err; 1441 int layer2_update; 1442 1443 if (params->vlan) { 1444 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1445 1446 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1447 sdata->vif.type != NL80211_IFTYPE_AP) 1448 return -EINVAL; 1449 } else 1450 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1451 1452 if (ether_addr_equal(mac, sdata->vif.addr)) 1453 return -EINVAL; 1454 1455 if (is_multicast_ether_addr(mac)) 1456 return -EINVAL; 1457 1458 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1459 if (!sta) 1460 return -ENOMEM; 1461 1462 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1463 sta->sta.tdls = true; 1464 1465 err = sta_apply_parameters(local, sta, params); 1466 if (err) { 1467 sta_info_free(local, sta); 1468 return err; 1469 } 1470 1471 /* 1472 * for TDLS and for unassociated station, rate control should be 1473 * initialized only when rates are known and station is marked 1474 * authorized/associated 1475 */ 1476 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1477 test_sta_flag(sta, WLAN_STA_ASSOC)) 1478 rate_control_rate_init(sta); 1479 1480 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1481 sdata->vif.type == NL80211_IFTYPE_AP; 1482 1483 err = sta_info_insert_rcu(sta); 1484 if (err) { 1485 rcu_read_unlock(); 1486 return err; 1487 } 1488 1489 if (layer2_update) 1490 ieee80211_send_layer2_update(sta); 1491 1492 rcu_read_unlock(); 1493 1494 return 0; 1495 } 1496 1497 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1498 struct station_del_parameters *params) 1499 { 1500 struct ieee80211_sub_if_data *sdata; 1501 1502 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1503 1504 if (params->mac) 1505 return sta_info_destroy_addr_bss(sdata, params->mac); 1506 1507 sta_info_flush(sdata); 1508 return 0; 1509 } 1510 1511 static int ieee80211_change_station(struct wiphy *wiphy, 1512 struct net_device *dev, const u8 *mac, 1513 struct station_parameters *params) 1514 { 1515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1516 struct ieee80211_local *local = wiphy_priv(wiphy); 1517 struct sta_info *sta; 1518 struct ieee80211_sub_if_data *vlansdata; 1519 enum cfg80211_station_type statype; 1520 int err; 1521 1522 mutex_lock(&local->sta_mtx); 1523 1524 sta = sta_info_get_bss(sdata, mac); 1525 if (!sta) { 1526 err = -ENOENT; 1527 goto out_err; 1528 } 1529 1530 switch (sdata->vif.type) { 1531 case NL80211_IFTYPE_MESH_POINT: 1532 if (sdata->u.mesh.user_mpm) 1533 statype = CFG80211_STA_MESH_PEER_USER; 1534 else 1535 statype = CFG80211_STA_MESH_PEER_KERNEL; 1536 break; 1537 case NL80211_IFTYPE_ADHOC: 1538 statype = CFG80211_STA_IBSS; 1539 break; 1540 case NL80211_IFTYPE_STATION: 1541 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1542 statype = CFG80211_STA_AP_STA; 1543 break; 1544 } 1545 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1546 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1547 else 1548 statype = CFG80211_STA_TDLS_PEER_SETUP; 1549 break; 1550 case NL80211_IFTYPE_AP: 1551 case NL80211_IFTYPE_AP_VLAN: 1552 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1553 statype = CFG80211_STA_AP_CLIENT; 1554 else 1555 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1556 break; 1557 default: 1558 err = -EOPNOTSUPP; 1559 goto out_err; 1560 } 1561 1562 err = cfg80211_check_station_change(wiphy, params, statype); 1563 if (err) 1564 goto out_err; 1565 1566 if (params->vlan && params->vlan != sta->sdata->dev) { 1567 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1568 1569 if (params->vlan->ieee80211_ptr->use_4addr) { 1570 if (vlansdata->u.vlan.sta) { 1571 err = -EBUSY; 1572 goto out_err; 1573 } 1574 1575 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1576 __ieee80211_check_fast_rx_iface(vlansdata); 1577 } 1578 1579 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1580 sta->sdata->u.vlan.sta) 1581 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1582 1583 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1584 ieee80211_vif_dec_num_mcast(sta->sdata); 1585 1586 sta->sdata = vlansdata; 1587 ieee80211_check_fast_xmit(sta); 1588 1589 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1590 ieee80211_vif_inc_num_mcast(sta->sdata); 1591 1592 ieee80211_send_layer2_update(sta); 1593 } 1594 1595 err = sta_apply_parameters(local, sta, params); 1596 if (err) 1597 goto out_err; 1598 1599 mutex_unlock(&local->sta_mtx); 1600 1601 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1602 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1603 sta->known_smps_mode != sta->sdata->bss->req_smps && 1604 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1605 sta_info_tx_streams(sta) != 1) { 1606 ht_dbg(sta->sdata, 1607 "%pM just authorized and MIMO capable - update SMPS\n", 1608 sta->sta.addr); 1609 ieee80211_send_smps_action(sta->sdata, 1610 sta->sdata->bss->req_smps, 1611 sta->sta.addr, 1612 sta->sdata->vif.bss_conf.bssid); 1613 } 1614 1615 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1616 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1617 ieee80211_recalc_ps(local); 1618 ieee80211_recalc_ps_vif(sdata); 1619 } 1620 1621 return 0; 1622 out_err: 1623 mutex_unlock(&local->sta_mtx); 1624 return err; 1625 } 1626 1627 #ifdef CONFIG_MAC80211_MESH 1628 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1629 const u8 *dst, const u8 *next_hop) 1630 { 1631 struct ieee80211_sub_if_data *sdata; 1632 struct mesh_path *mpath; 1633 struct sta_info *sta; 1634 1635 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1636 1637 rcu_read_lock(); 1638 sta = sta_info_get(sdata, next_hop); 1639 if (!sta) { 1640 rcu_read_unlock(); 1641 return -ENOENT; 1642 } 1643 1644 mpath = mesh_path_add(sdata, dst); 1645 if (IS_ERR(mpath)) { 1646 rcu_read_unlock(); 1647 return PTR_ERR(mpath); 1648 } 1649 1650 mesh_path_fix_nexthop(mpath, sta); 1651 1652 rcu_read_unlock(); 1653 return 0; 1654 } 1655 1656 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1657 const u8 *dst) 1658 { 1659 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1660 1661 if (dst) 1662 return mesh_path_del(sdata, dst); 1663 1664 mesh_path_flush_by_iface(sdata); 1665 return 0; 1666 } 1667 1668 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1669 const u8 *dst, const u8 *next_hop) 1670 { 1671 struct ieee80211_sub_if_data *sdata; 1672 struct mesh_path *mpath; 1673 struct sta_info *sta; 1674 1675 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1676 1677 rcu_read_lock(); 1678 1679 sta = sta_info_get(sdata, next_hop); 1680 if (!sta) { 1681 rcu_read_unlock(); 1682 return -ENOENT; 1683 } 1684 1685 mpath = mesh_path_lookup(sdata, dst); 1686 if (!mpath) { 1687 rcu_read_unlock(); 1688 return -ENOENT; 1689 } 1690 1691 mesh_path_fix_nexthop(mpath, sta); 1692 1693 rcu_read_unlock(); 1694 return 0; 1695 } 1696 1697 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1698 struct mpath_info *pinfo) 1699 { 1700 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1701 1702 if (next_hop_sta) 1703 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1704 else 1705 eth_zero_addr(next_hop); 1706 1707 memset(pinfo, 0, sizeof(*pinfo)); 1708 1709 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1710 1711 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1712 MPATH_INFO_SN | 1713 MPATH_INFO_METRIC | 1714 MPATH_INFO_EXPTIME | 1715 MPATH_INFO_DISCOVERY_TIMEOUT | 1716 MPATH_INFO_DISCOVERY_RETRIES | 1717 MPATH_INFO_FLAGS; 1718 1719 pinfo->frame_qlen = mpath->frame_queue.qlen; 1720 pinfo->sn = mpath->sn; 1721 pinfo->metric = mpath->metric; 1722 if (time_before(jiffies, mpath->exp_time)) 1723 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1724 pinfo->discovery_timeout = 1725 jiffies_to_msecs(mpath->discovery_timeout); 1726 pinfo->discovery_retries = mpath->discovery_retries; 1727 if (mpath->flags & MESH_PATH_ACTIVE) 1728 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1729 if (mpath->flags & MESH_PATH_RESOLVING) 1730 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1731 if (mpath->flags & MESH_PATH_SN_VALID) 1732 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1733 if (mpath->flags & MESH_PATH_FIXED) 1734 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1735 if (mpath->flags & MESH_PATH_RESOLVED) 1736 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1737 } 1738 1739 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1740 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1741 1742 { 1743 struct ieee80211_sub_if_data *sdata; 1744 struct mesh_path *mpath; 1745 1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1747 1748 rcu_read_lock(); 1749 mpath = mesh_path_lookup(sdata, dst); 1750 if (!mpath) { 1751 rcu_read_unlock(); 1752 return -ENOENT; 1753 } 1754 memcpy(dst, mpath->dst, ETH_ALEN); 1755 mpath_set_pinfo(mpath, next_hop, pinfo); 1756 rcu_read_unlock(); 1757 return 0; 1758 } 1759 1760 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1761 int idx, u8 *dst, u8 *next_hop, 1762 struct mpath_info *pinfo) 1763 { 1764 struct ieee80211_sub_if_data *sdata; 1765 struct mesh_path *mpath; 1766 1767 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1768 1769 rcu_read_lock(); 1770 mpath = mesh_path_lookup_by_idx(sdata, idx); 1771 if (!mpath) { 1772 rcu_read_unlock(); 1773 return -ENOENT; 1774 } 1775 memcpy(dst, mpath->dst, ETH_ALEN); 1776 mpath_set_pinfo(mpath, next_hop, pinfo); 1777 rcu_read_unlock(); 1778 return 0; 1779 } 1780 1781 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1782 struct mpath_info *pinfo) 1783 { 1784 memset(pinfo, 0, sizeof(*pinfo)); 1785 memcpy(mpp, mpath->mpp, ETH_ALEN); 1786 1787 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1788 } 1789 1790 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1791 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1792 1793 { 1794 struct ieee80211_sub_if_data *sdata; 1795 struct mesh_path *mpath; 1796 1797 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1798 1799 rcu_read_lock(); 1800 mpath = mpp_path_lookup(sdata, dst); 1801 if (!mpath) { 1802 rcu_read_unlock(); 1803 return -ENOENT; 1804 } 1805 memcpy(dst, mpath->dst, ETH_ALEN); 1806 mpp_set_pinfo(mpath, mpp, pinfo); 1807 rcu_read_unlock(); 1808 return 0; 1809 } 1810 1811 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1812 int idx, u8 *dst, u8 *mpp, 1813 struct mpath_info *pinfo) 1814 { 1815 struct ieee80211_sub_if_data *sdata; 1816 struct mesh_path *mpath; 1817 1818 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1819 1820 rcu_read_lock(); 1821 mpath = mpp_path_lookup_by_idx(sdata, idx); 1822 if (!mpath) { 1823 rcu_read_unlock(); 1824 return -ENOENT; 1825 } 1826 memcpy(dst, mpath->dst, ETH_ALEN); 1827 mpp_set_pinfo(mpath, mpp, pinfo); 1828 rcu_read_unlock(); 1829 return 0; 1830 } 1831 1832 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1833 struct net_device *dev, 1834 struct mesh_config *conf) 1835 { 1836 struct ieee80211_sub_if_data *sdata; 1837 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1838 1839 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1840 return 0; 1841 } 1842 1843 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1844 { 1845 return (mask >> (parm-1)) & 0x1; 1846 } 1847 1848 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1849 const struct mesh_setup *setup) 1850 { 1851 u8 *new_ie; 1852 const u8 *old_ie; 1853 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1854 struct ieee80211_sub_if_data, u.mesh); 1855 1856 /* allocate information elements */ 1857 new_ie = NULL; 1858 old_ie = ifmsh->ie; 1859 1860 if (setup->ie_len) { 1861 new_ie = kmemdup(setup->ie, setup->ie_len, 1862 GFP_KERNEL); 1863 if (!new_ie) 1864 return -ENOMEM; 1865 } 1866 ifmsh->ie_len = setup->ie_len; 1867 ifmsh->ie = new_ie; 1868 kfree(old_ie); 1869 1870 /* now copy the rest of the setup parameters */ 1871 ifmsh->mesh_id_len = setup->mesh_id_len; 1872 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1873 ifmsh->mesh_sp_id = setup->sync_method; 1874 ifmsh->mesh_pp_id = setup->path_sel_proto; 1875 ifmsh->mesh_pm_id = setup->path_metric; 1876 ifmsh->user_mpm = setup->user_mpm; 1877 ifmsh->mesh_auth_id = setup->auth_id; 1878 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1879 if (setup->is_authenticated) 1880 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1881 if (setup->is_secure) 1882 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1883 1884 /* mcast rate setting in Mesh Node */ 1885 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1886 sizeof(setup->mcast_rate)); 1887 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1888 1889 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1890 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1891 1892 return 0; 1893 } 1894 1895 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1896 struct net_device *dev, u32 mask, 1897 const struct mesh_config *nconf) 1898 { 1899 struct mesh_config *conf; 1900 struct ieee80211_sub_if_data *sdata; 1901 struct ieee80211_if_mesh *ifmsh; 1902 1903 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1904 ifmsh = &sdata->u.mesh; 1905 1906 /* Set the config options which we are interested in setting */ 1907 conf = &(sdata->u.mesh.mshcfg); 1908 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1909 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1910 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1911 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1912 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1913 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1914 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1915 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1916 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1917 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1918 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1919 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1920 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1921 conf->element_ttl = nconf->element_ttl; 1922 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1923 if (ifmsh->user_mpm) 1924 return -EBUSY; 1925 conf->auto_open_plinks = nconf->auto_open_plinks; 1926 } 1927 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1928 conf->dot11MeshNbrOffsetMaxNeighbor = 1929 nconf->dot11MeshNbrOffsetMaxNeighbor; 1930 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1931 conf->dot11MeshHWMPmaxPREQretries = 1932 nconf->dot11MeshHWMPmaxPREQretries; 1933 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1934 conf->path_refresh_time = nconf->path_refresh_time; 1935 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1936 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1937 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1938 conf->dot11MeshHWMPactivePathTimeout = 1939 nconf->dot11MeshHWMPactivePathTimeout; 1940 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1941 conf->dot11MeshHWMPpreqMinInterval = 1942 nconf->dot11MeshHWMPpreqMinInterval; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1944 conf->dot11MeshHWMPperrMinInterval = 1945 nconf->dot11MeshHWMPperrMinInterval; 1946 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1947 mask)) 1948 conf->dot11MeshHWMPnetDiameterTraversalTime = 1949 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1950 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1951 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1952 ieee80211_mesh_root_setup(ifmsh); 1953 } 1954 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1955 /* our current gate announcement implementation rides on root 1956 * announcements, so require this ifmsh to also be a root node 1957 * */ 1958 if (nconf->dot11MeshGateAnnouncementProtocol && 1959 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1960 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1961 ieee80211_mesh_root_setup(ifmsh); 1962 } 1963 conf->dot11MeshGateAnnouncementProtocol = 1964 nconf->dot11MeshGateAnnouncementProtocol; 1965 } 1966 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1967 conf->dot11MeshHWMPRannInterval = 1968 nconf->dot11MeshHWMPRannInterval; 1969 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1970 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1971 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1972 /* our RSSI threshold implementation is supported only for 1973 * devices that report signal in dBm. 1974 */ 1975 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 1976 return -ENOTSUPP; 1977 conf->rssi_threshold = nconf->rssi_threshold; 1978 } 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1980 conf->ht_opmode = nconf->ht_opmode; 1981 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1982 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1983 } 1984 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1985 conf->dot11MeshHWMPactivePathToRootTimeout = 1986 nconf->dot11MeshHWMPactivePathToRootTimeout; 1987 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1988 conf->dot11MeshHWMProotInterval = 1989 nconf->dot11MeshHWMProotInterval; 1990 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1991 conf->dot11MeshHWMPconfirmationInterval = 1992 nconf->dot11MeshHWMPconfirmationInterval; 1993 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1994 conf->power_mode = nconf->power_mode; 1995 ieee80211_mps_local_status_update(sdata); 1996 } 1997 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1998 conf->dot11MeshAwakeWindowDuration = 1999 nconf->dot11MeshAwakeWindowDuration; 2000 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2001 conf->plink_timeout = nconf->plink_timeout; 2002 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2003 return 0; 2004 } 2005 2006 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2007 const struct mesh_config *conf, 2008 const struct mesh_setup *setup) 2009 { 2010 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2011 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2012 int err; 2013 2014 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2015 err = copy_mesh_setup(ifmsh, setup); 2016 if (err) 2017 return err; 2018 2019 /* can mesh use other SMPS modes? */ 2020 sdata->smps_mode = IEEE80211_SMPS_OFF; 2021 sdata->needed_rx_chains = sdata->local->rx_chains; 2022 2023 mutex_lock(&sdata->local->mtx); 2024 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2025 IEEE80211_CHANCTX_SHARED); 2026 mutex_unlock(&sdata->local->mtx); 2027 if (err) 2028 return err; 2029 2030 return ieee80211_start_mesh(sdata); 2031 } 2032 2033 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2034 { 2035 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2036 2037 ieee80211_stop_mesh(sdata); 2038 mutex_lock(&sdata->local->mtx); 2039 ieee80211_vif_release_channel(sdata); 2040 mutex_unlock(&sdata->local->mtx); 2041 2042 return 0; 2043 } 2044 #endif 2045 2046 static int ieee80211_change_bss(struct wiphy *wiphy, 2047 struct net_device *dev, 2048 struct bss_parameters *params) 2049 { 2050 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2051 struct ieee80211_supported_band *sband; 2052 u32 changed = 0; 2053 2054 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2055 return -ENOENT; 2056 2057 sband = ieee80211_get_sband(sdata); 2058 if (!sband) 2059 return -EINVAL; 2060 2061 if (params->use_cts_prot >= 0) { 2062 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2063 changed |= BSS_CHANGED_ERP_CTS_PROT; 2064 } 2065 if (params->use_short_preamble >= 0) { 2066 sdata->vif.bss_conf.use_short_preamble = 2067 params->use_short_preamble; 2068 changed |= BSS_CHANGED_ERP_PREAMBLE; 2069 } 2070 2071 if (!sdata->vif.bss_conf.use_short_slot && 2072 sband->band == NL80211_BAND_5GHZ) { 2073 sdata->vif.bss_conf.use_short_slot = true; 2074 changed |= BSS_CHANGED_ERP_SLOT; 2075 } 2076 2077 if (params->use_short_slot_time >= 0) { 2078 sdata->vif.bss_conf.use_short_slot = 2079 params->use_short_slot_time; 2080 changed |= BSS_CHANGED_ERP_SLOT; 2081 } 2082 2083 if (params->basic_rates) { 2084 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2085 wiphy->bands[sband->band], 2086 params->basic_rates, 2087 params->basic_rates_len, 2088 &sdata->vif.bss_conf.basic_rates); 2089 changed |= BSS_CHANGED_BASIC_RATES; 2090 ieee80211_check_rate_mask(sdata); 2091 } 2092 2093 if (params->ap_isolate >= 0) { 2094 if (params->ap_isolate) 2095 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2096 else 2097 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2098 ieee80211_check_fast_rx_iface(sdata); 2099 } 2100 2101 if (params->ht_opmode >= 0) { 2102 sdata->vif.bss_conf.ht_operation_mode = 2103 (u16) params->ht_opmode; 2104 changed |= BSS_CHANGED_HT; 2105 } 2106 2107 if (params->p2p_ctwindow >= 0) { 2108 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2109 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2110 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2111 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2112 changed |= BSS_CHANGED_P2P_PS; 2113 } 2114 2115 if (params->p2p_opp_ps > 0) { 2116 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2117 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2118 changed |= BSS_CHANGED_P2P_PS; 2119 } else if (params->p2p_opp_ps == 0) { 2120 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2121 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2122 changed |= BSS_CHANGED_P2P_PS; 2123 } 2124 2125 ieee80211_bss_info_change_notify(sdata, changed); 2126 2127 return 0; 2128 } 2129 2130 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2131 struct net_device *dev, 2132 struct ieee80211_txq_params *params) 2133 { 2134 struct ieee80211_local *local = wiphy_priv(wiphy); 2135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2136 struct ieee80211_tx_queue_params p; 2137 2138 if (!local->ops->conf_tx) 2139 return -EOPNOTSUPP; 2140 2141 if (local->hw.queues < IEEE80211_NUM_ACS) 2142 return -EOPNOTSUPP; 2143 2144 memset(&p, 0, sizeof(p)); 2145 p.aifs = params->aifs; 2146 p.cw_max = params->cwmax; 2147 p.cw_min = params->cwmin; 2148 p.txop = params->txop; 2149 2150 /* 2151 * Setting tx queue params disables u-apsd because it's only 2152 * called in master mode. 2153 */ 2154 p.uapsd = false; 2155 2156 sdata->tx_conf[params->ac] = p; 2157 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2158 wiphy_debug(local->hw.wiphy, 2159 "failed to set TX queue parameters for AC %d\n", 2160 params->ac); 2161 return -EINVAL; 2162 } 2163 2164 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2165 2166 return 0; 2167 } 2168 2169 #ifdef CONFIG_PM 2170 static int ieee80211_suspend(struct wiphy *wiphy, 2171 struct cfg80211_wowlan *wowlan) 2172 { 2173 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2174 } 2175 2176 static int ieee80211_resume(struct wiphy *wiphy) 2177 { 2178 return __ieee80211_resume(wiphy_priv(wiphy)); 2179 } 2180 #else 2181 #define ieee80211_suspend NULL 2182 #define ieee80211_resume NULL 2183 #endif 2184 2185 static int ieee80211_scan(struct wiphy *wiphy, 2186 struct cfg80211_scan_request *req) 2187 { 2188 struct ieee80211_sub_if_data *sdata; 2189 2190 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2191 2192 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2193 case NL80211_IFTYPE_STATION: 2194 case NL80211_IFTYPE_ADHOC: 2195 case NL80211_IFTYPE_MESH_POINT: 2196 case NL80211_IFTYPE_P2P_CLIENT: 2197 case NL80211_IFTYPE_P2P_DEVICE: 2198 break; 2199 case NL80211_IFTYPE_P2P_GO: 2200 if (sdata->local->ops->hw_scan) 2201 break; 2202 /* 2203 * FIXME: implement NoA while scanning in software, 2204 * for now fall through to allow scanning only when 2205 * beaconing hasn't been configured yet 2206 */ 2207 case NL80211_IFTYPE_AP: 2208 /* 2209 * If the scan has been forced (and the driver supports 2210 * forcing), don't care about being beaconing already. 2211 * This will create problems to the attached stations (e.g. all 2212 * the frames sent while scanning on other channel will be 2213 * lost) 2214 */ 2215 if (sdata->u.ap.beacon && 2216 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2217 !(req->flags & NL80211_SCAN_FLAG_AP))) 2218 return -EOPNOTSUPP; 2219 break; 2220 case NL80211_IFTYPE_NAN: 2221 default: 2222 return -EOPNOTSUPP; 2223 } 2224 2225 return ieee80211_request_scan(sdata, req); 2226 } 2227 2228 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2229 { 2230 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2231 } 2232 2233 static int 2234 ieee80211_sched_scan_start(struct wiphy *wiphy, 2235 struct net_device *dev, 2236 struct cfg80211_sched_scan_request *req) 2237 { 2238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2239 2240 if (!sdata->local->ops->sched_scan_start) 2241 return -EOPNOTSUPP; 2242 2243 return ieee80211_request_sched_scan_start(sdata, req); 2244 } 2245 2246 static int 2247 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2248 u64 reqid) 2249 { 2250 struct ieee80211_local *local = wiphy_priv(wiphy); 2251 2252 if (!local->ops->sched_scan_stop) 2253 return -EOPNOTSUPP; 2254 2255 return ieee80211_request_sched_scan_stop(local); 2256 } 2257 2258 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2259 struct cfg80211_auth_request *req) 2260 { 2261 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2262 } 2263 2264 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2265 struct cfg80211_assoc_request *req) 2266 { 2267 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2268 } 2269 2270 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2271 struct cfg80211_deauth_request *req) 2272 { 2273 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2274 } 2275 2276 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2277 struct cfg80211_disassoc_request *req) 2278 { 2279 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2280 } 2281 2282 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2283 struct cfg80211_ibss_params *params) 2284 { 2285 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2286 } 2287 2288 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2289 { 2290 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2291 } 2292 2293 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2294 struct ocb_setup *setup) 2295 { 2296 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2297 } 2298 2299 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2300 { 2301 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2302 } 2303 2304 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2305 int rate[NUM_NL80211_BANDS]) 2306 { 2307 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2308 2309 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2310 sizeof(int) * NUM_NL80211_BANDS); 2311 2312 return 0; 2313 } 2314 2315 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2316 { 2317 struct ieee80211_local *local = wiphy_priv(wiphy); 2318 int err; 2319 2320 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2321 ieee80211_check_fast_xmit_all(local); 2322 2323 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2324 2325 if (err) { 2326 ieee80211_check_fast_xmit_all(local); 2327 return err; 2328 } 2329 } 2330 2331 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2332 (changed & WIPHY_PARAM_DYN_ACK)) { 2333 s16 coverage_class; 2334 2335 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2336 wiphy->coverage_class : -1; 2337 err = drv_set_coverage_class(local, coverage_class); 2338 2339 if (err) 2340 return err; 2341 } 2342 2343 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2344 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2345 2346 if (err) 2347 return err; 2348 } 2349 2350 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2351 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2352 return -EINVAL; 2353 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2354 } 2355 if (changed & WIPHY_PARAM_RETRY_LONG) { 2356 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2357 return -EINVAL; 2358 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2359 } 2360 if (changed & 2361 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2362 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2363 2364 return 0; 2365 } 2366 2367 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2368 struct wireless_dev *wdev, 2369 enum nl80211_tx_power_setting type, int mbm) 2370 { 2371 struct ieee80211_local *local = wiphy_priv(wiphy); 2372 struct ieee80211_sub_if_data *sdata; 2373 enum nl80211_tx_power_setting txp_type = type; 2374 bool update_txp_type = false; 2375 2376 if (wdev) { 2377 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2378 2379 switch (type) { 2380 case NL80211_TX_POWER_AUTOMATIC: 2381 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2382 txp_type = NL80211_TX_POWER_LIMITED; 2383 break; 2384 case NL80211_TX_POWER_LIMITED: 2385 case NL80211_TX_POWER_FIXED: 2386 if (mbm < 0 || (mbm % 100)) 2387 return -EOPNOTSUPP; 2388 sdata->user_power_level = MBM_TO_DBM(mbm); 2389 break; 2390 } 2391 2392 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2393 update_txp_type = true; 2394 sdata->vif.bss_conf.txpower_type = txp_type; 2395 } 2396 2397 ieee80211_recalc_txpower(sdata, update_txp_type); 2398 2399 return 0; 2400 } 2401 2402 switch (type) { 2403 case NL80211_TX_POWER_AUTOMATIC: 2404 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2405 txp_type = NL80211_TX_POWER_LIMITED; 2406 break; 2407 case NL80211_TX_POWER_LIMITED: 2408 case NL80211_TX_POWER_FIXED: 2409 if (mbm < 0 || (mbm % 100)) 2410 return -EOPNOTSUPP; 2411 local->user_power_level = MBM_TO_DBM(mbm); 2412 break; 2413 } 2414 2415 mutex_lock(&local->iflist_mtx); 2416 list_for_each_entry(sdata, &local->interfaces, list) { 2417 sdata->user_power_level = local->user_power_level; 2418 if (txp_type != sdata->vif.bss_conf.txpower_type) 2419 update_txp_type = true; 2420 sdata->vif.bss_conf.txpower_type = txp_type; 2421 } 2422 list_for_each_entry(sdata, &local->interfaces, list) 2423 ieee80211_recalc_txpower(sdata, update_txp_type); 2424 mutex_unlock(&local->iflist_mtx); 2425 2426 return 0; 2427 } 2428 2429 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2430 struct wireless_dev *wdev, 2431 int *dbm) 2432 { 2433 struct ieee80211_local *local = wiphy_priv(wiphy); 2434 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2435 2436 if (local->ops->get_txpower) 2437 return drv_get_txpower(local, sdata, dbm); 2438 2439 if (!local->use_chanctx) 2440 *dbm = local->hw.conf.power_level; 2441 else 2442 *dbm = sdata->vif.bss_conf.txpower; 2443 2444 return 0; 2445 } 2446 2447 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2448 const u8 *addr) 2449 { 2450 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2451 2452 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2453 2454 return 0; 2455 } 2456 2457 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2458 { 2459 struct ieee80211_local *local = wiphy_priv(wiphy); 2460 2461 drv_rfkill_poll(local); 2462 } 2463 2464 #ifdef CONFIG_NL80211_TESTMODE 2465 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2466 struct wireless_dev *wdev, 2467 void *data, int len) 2468 { 2469 struct ieee80211_local *local = wiphy_priv(wiphy); 2470 struct ieee80211_vif *vif = NULL; 2471 2472 if (!local->ops->testmode_cmd) 2473 return -EOPNOTSUPP; 2474 2475 if (wdev) { 2476 struct ieee80211_sub_if_data *sdata; 2477 2478 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2479 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2480 vif = &sdata->vif; 2481 } 2482 2483 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2484 } 2485 2486 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2487 struct sk_buff *skb, 2488 struct netlink_callback *cb, 2489 void *data, int len) 2490 { 2491 struct ieee80211_local *local = wiphy_priv(wiphy); 2492 2493 if (!local->ops->testmode_dump) 2494 return -EOPNOTSUPP; 2495 2496 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2497 } 2498 #endif 2499 2500 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2501 enum ieee80211_smps_mode smps_mode) 2502 { 2503 struct sta_info *sta; 2504 enum ieee80211_smps_mode old_req; 2505 2506 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2507 return -EINVAL; 2508 2509 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2510 return 0; 2511 2512 old_req = sdata->u.ap.req_smps; 2513 sdata->u.ap.req_smps = smps_mode; 2514 2515 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2516 if (old_req == smps_mode || 2517 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2518 return 0; 2519 2520 ht_dbg(sdata, 2521 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2522 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2523 2524 mutex_lock(&sdata->local->sta_mtx); 2525 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2526 /* 2527 * Only stations associated to our AP and 2528 * associated VLANs 2529 */ 2530 if (sta->sdata->bss != &sdata->u.ap) 2531 continue; 2532 2533 /* This station doesn't support MIMO - skip it */ 2534 if (sta_info_tx_streams(sta) == 1) 2535 continue; 2536 2537 /* 2538 * Don't wake up a STA just to send the action frame 2539 * unless we are getting more restrictive. 2540 */ 2541 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2542 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2543 smps_mode)) { 2544 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2545 sta->sta.addr); 2546 continue; 2547 } 2548 2549 /* 2550 * If the STA is not authorized, wait until it gets 2551 * authorized and the action frame will be sent then. 2552 */ 2553 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2554 continue; 2555 2556 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2557 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2558 sdata->vif.bss_conf.bssid); 2559 } 2560 mutex_unlock(&sdata->local->sta_mtx); 2561 2562 sdata->smps_mode = smps_mode; 2563 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2564 2565 return 0; 2566 } 2567 2568 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2569 enum ieee80211_smps_mode smps_mode) 2570 { 2571 const u8 *ap; 2572 enum ieee80211_smps_mode old_req; 2573 int err; 2574 struct sta_info *sta; 2575 bool tdls_peer_found = false; 2576 2577 lockdep_assert_held(&sdata->wdev.mtx); 2578 2579 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2580 return -EINVAL; 2581 2582 old_req = sdata->u.mgd.req_smps; 2583 sdata->u.mgd.req_smps = smps_mode; 2584 2585 if (old_req == smps_mode && 2586 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2587 return 0; 2588 2589 /* 2590 * If not associated, or current association is not an HT 2591 * association, there's no need to do anything, just store 2592 * the new value until we associate. 2593 */ 2594 if (!sdata->u.mgd.associated || 2595 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2596 return 0; 2597 2598 ap = sdata->u.mgd.associated->bssid; 2599 2600 rcu_read_lock(); 2601 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2602 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2603 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2604 continue; 2605 2606 tdls_peer_found = true; 2607 break; 2608 } 2609 rcu_read_unlock(); 2610 2611 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2612 if (tdls_peer_found || !sdata->u.mgd.powersave) 2613 smps_mode = IEEE80211_SMPS_OFF; 2614 else 2615 smps_mode = IEEE80211_SMPS_DYNAMIC; 2616 } 2617 2618 /* send SM PS frame to AP */ 2619 err = ieee80211_send_smps_action(sdata, smps_mode, 2620 ap, ap); 2621 if (err) 2622 sdata->u.mgd.req_smps = old_req; 2623 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2624 ieee80211_teardown_tdls_peers(sdata); 2625 2626 return err; 2627 } 2628 2629 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2630 bool enabled, int timeout) 2631 { 2632 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2633 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2634 2635 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2636 return -EOPNOTSUPP; 2637 2638 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2639 return -EOPNOTSUPP; 2640 2641 if (enabled == sdata->u.mgd.powersave && 2642 timeout == local->dynamic_ps_forced_timeout) 2643 return 0; 2644 2645 sdata->u.mgd.powersave = enabled; 2646 local->dynamic_ps_forced_timeout = timeout; 2647 2648 /* no change, but if automatic follow powersave */ 2649 sdata_lock(sdata); 2650 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2651 sdata_unlock(sdata); 2652 2653 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2654 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2655 2656 ieee80211_recalc_ps(local); 2657 ieee80211_recalc_ps_vif(sdata); 2658 2659 return 0; 2660 } 2661 2662 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2663 struct net_device *dev, 2664 s32 rssi_thold, u32 rssi_hyst) 2665 { 2666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2667 struct ieee80211_vif *vif = &sdata->vif; 2668 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2669 2670 if (rssi_thold == bss_conf->cqm_rssi_thold && 2671 rssi_hyst == bss_conf->cqm_rssi_hyst) 2672 return 0; 2673 2674 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2675 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2676 return -EOPNOTSUPP; 2677 2678 bss_conf->cqm_rssi_thold = rssi_thold; 2679 bss_conf->cqm_rssi_hyst = rssi_hyst; 2680 bss_conf->cqm_rssi_low = 0; 2681 bss_conf->cqm_rssi_high = 0; 2682 sdata->u.mgd.last_cqm_event_signal = 0; 2683 2684 /* tell the driver upon association, unless already associated */ 2685 if (sdata->u.mgd.associated && 2686 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2687 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2688 2689 return 0; 2690 } 2691 2692 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2693 struct net_device *dev, 2694 s32 rssi_low, s32 rssi_high) 2695 { 2696 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2697 struct ieee80211_vif *vif = &sdata->vif; 2698 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2699 2700 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2701 return -EOPNOTSUPP; 2702 2703 bss_conf->cqm_rssi_low = rssi_low; 2704 bss_conf->cqm_rssi_high = rssi_high; 2705 bss_conf->cqm_rssi_thold = 0; 2706 bss_conf->cqm_rssi_hyst = 0; 2707 sdata->u.mgd.last_cqm_event_signal = 0; 2708 2709 /* tell the driver upon association, unless already associated */ 2710 if (sdata->u.mgd.associated && 2711 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2712 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2713 2714 return 0; 2715 } 2716 2717 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2718 struct net_device *dev, 2719 const u8 *addr, 2720 const struct cfg80211_bitrate_mask *mask) 2721 { 2722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2723 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2724 int i, ret; 2725 2726 if (!ieee80211_sdata_running(sdata)) 2727 return -ENETDOWN; 2728 2729 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2730 ret = drv_set_bitrate_mask(local, sdata, mask); 2731 if (ret) 2732 return ret; 2733 } 2734 2735 /* 2736 * If active validate the setting and reject it if it doesn't leave 2737 * at least one basic rate usable, since we really have to be able 2738 * to send something, and if we're an AP we have to be able to do 2739 * so at a basic rate so that all clients can receive it. 2740 */ 2741 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2742 sdata->vif.bss_conf.chandef.chan) { 2743 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2744 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2745 2746 if (!(mask->control[band].legacy & basic_rates)) 2747 return -EINVAL; 2748 } 2749 2750 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2751 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2752 int j; 2753 2754 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2755 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2756 sizeof(mask->control[i].ht_mcs)); 2757 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2758 mask->control[i].vht_mcs, 2759 sizeof(mask->control[i].vht_mcs)); 2760 2761 sdata->rc_has_mcs_mask[i] = false; 2762 sdata->rc_has_vht_mcs_mask[i] = false; 2763 if (!sband) 2764 continue; 2765 2766 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2767 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2768 sdata->rc_has_mcs_mask[i] = true; 2769 break; 2770 } 2771 } 2772 2773 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2774 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2775 sdata->rc_has_vht_mcs_mask[i] = true; 2776 break; 2777 } 2778 } 2779 } 2780 2781 return 0; 2782 } 2783 2784 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2785 struct net_device *dev, 2786 struct cfg80211_chan_def *chandef, 2787 u32 cac_time_ms) 2788 { 2789 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2790 struct ieee80211_local *local = sdata->local; 2791 int err; 2792 2793 mutex_lock(&local->mtx); 2794 if (!list_empty(&local->roc_list) || local->scanning) { 2795 err = -EBUSY; 2796 goto out_unlock; 2797 } 2798 2799 /* whatever, but channel contexts should not complain about that one */ 2800 sdata->smps_mode = IEEE80211_SMPS_OFF; 2801 sdata->needed_rx_chains = local->rx_chains; 2802 2803 err = ieee80211_vif_use_channel(sdata, chandef, 2804 IEEE80211_CHANCTX_SHARED); 2805 if (err) 2806 goto out_unlock; 2807 2808 ieee80211_queue_delayed_work(&sdata->local->hw, 2809 &sdata->dfs_cac_timer_work, 2810 msecs_to_jiffies(cac_time_ms)); 2811 2812 out_unlock: 2813 mutex_unlock(&local->mtx); 2814 return err; 2815 } 2816 2817 static struct cfg80211_beacon_data * 2818 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2819 { 2820 struct cfg80211_beacon_data *new_beacon; 2821 u8 *pos; 2822 int len; 2823 2824 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2825 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2826 beacon->probe_resp_len; 2827 2828 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2829 if (!new_beacon) 2830 return NULL; 2831 2832 pos = (u8 *)(new_beacon + 1); 2833 if (beacon->head_len) { 2834 new_beacon->head_len = beacon->head_len; 2835 new_beacon->head = pos; 2836 memcpy(pos, beacon->head, beacon->head_len); 2837 pos += beacon->head_len; 2838 } 2839 if (beacon->tail_len) { 2840 new_beacon->tail_len = beacon->tail_len; 2841 new_beacon->tail = pos; 2842 memcpy(pos, beacon->tail, beacon->tail_len); 2843 pos += beacon->tail_len; 2844 } 2845 if (beacon->beacon_ies_len) { 2846 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2847 new_beacon->beacon_ies = pos; 2848 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2849 pos += beacon->beacon_ies_len; 2850 } 2851 if (beacon->proberesp_ies_len) { 2852 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2853 new_beacon->proberesp_ies = pos; 2854 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2855 pos += beacon->proberesp_ies_len; 2856 } 2857 if (beacon->assocresp_ies_len) { 2858 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2859 new_beacon->assocresp_ies = pos; 2860 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2861 pos += beacon->assocresp_ies_len; 2862 } 2863 if (beacon->probe_resp_len) { 2864 new_beacon->probe_resp_len = beacon->probe_resp_len; 2865 beacon->probe_resp = pos; 2866 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2867 pos += beacon->probe_resp_len; 2868 } 2869 2870 return new_beacon; 2871 } 2872 2873 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2874 { 2875 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2876 2877 ieee80211_queue_work(&sdata->local->hw, 2878 &sdata->csa_finalize_work); 2879 } 2880 EXPORT_SYMBOL(ieee80211_csa_finish); 2881 2882 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2883 u32 *changed) 2884 { 2885 int err; 2886 2887 switch (sdata->vif.type) { 2888 case NL80211_IFTYPE_AP: 2889 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2890 NULL); 2891 kfree(sdata->u.ap.next_beacon); 2892 sdata->u.ap.next_beacon = NULL; 2893 2894 if (err < 0) 2895 return err; 2896 *changed |= err; 2897 break; 2898 case NL80211_IFTYPE_ADHOC: 2899 err = ieee80211_ibss_finish_csa(sdata); 2900 if (err < 0) 2901 return err; 2902 *changed |= err; 2903 break; 2904 #ifdef CONFIG_MAC80211_MESH 2905 case NL80211_IFTYPE_MESH_POINT: 2906 err = ieee80211_mesh_finish_csa(sdata); 2907 if (err < 0) 2908 return err; 2909 *changed |= err; 2910 break; 2911 #endif 2912 default: 2913 WARN_ON(1); 2914 return -EINVAL; 2915 } 2916 2917 return 0; 2918 } 2919 2920 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2921 { 2922 struct ieee80211_local *local = sdata->local; 2923 u32 changed = 0; 2924 int err; 2925 2926 sdata_assert_lock(sdata); 2927 lockdep_assert_held(&local->mtx); 2928 lockdep_assert_held(&local->chanctx_mtx); 2929 2930 /* 2931 * using reservation isn't immediate as it may be deferred until later 2932 * with multi-vif. once reservation is complete it will re-schedule the 2933 * work with no reserved_chanctx so verify chandef to check if it 2934 * completed successfully 2935 */ 2936 2937 if (sdata->reserved_chanctx) { 2938 /* 2939 * with multi-vif csa driver may call ieee80211_csa_finish() 2940 * many times while waiting for other interfaces to use their 2941 * reservations 2942 */ 2943 if (sdata->reserved_ready) 2944 return 0; 2945 2946 return ieee80211_vif_use_reserved_context(sdata); 2947 } 2948 2949 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 2950 &sdata->csa_chandef)) 2951 return -EINVAL; 2952 2953 sdata->vif.csa_active = false; 2954 2955 err = ieee80211_set_after_csa_beacon(sdata, &changed); 2956 if (err) 2957 return err; 2958 2959 ieee80211_bss_info_change_notify(sdata, changed); 2960 2961 if (sdata->csa_block_tx) { 2962 ieee80211_wake_vif_queues(local, sdata, 2963 IEEE80211_QUEUE_STOP_REASON_CSA); 2964 sdata->csa_block_tx = false; 2965 } 2966 2967 err = drv_post_channel_switch(sdata); 2968 if (err) 2969 return err; 2970 2971 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 2972 2973 return 0; 2974 } 2975 2976 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2977 { 2978 if (__ieee80211_csa_finalize(sdata)) { 2979 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 2980 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 2981 GFP_KERNEL); 2982 } 2983 } 2984 2985 void ieee80211_csa_finalize_work(struct work_struct *work) 2986 { 2987 struct ieee80211_sub_if_data *sdata = 2988 container_of(work, struct ieee80211_sub_if_data, 2989 csa_finalize_work); 2990 struct ieee80211_local *local = sdata->local; 2991 2992 sdata_lock(sdata); 2993 mutex_lock(&local->mtx); 2994 mutex_lock(&local->chanctx_mtx); 2995 2996 /* AP might have been stopped while waiting for the lock. */ 2997 if (!sdata->vif.csa_active) 2998 goto unlock; 2999 3000 if (!ieee80211_sdata_running(sdata)) 3001 goto unlock; 3002 3003 ieee80211_csa_finalize(sdata); 3004 3005 unlock: 3006 mutex_unlock(&local->chanctx_mtx); 3007 mutex_unlock(&local->mtx); 3008 sdata_unlock(sdata); 3009 } 3010 3011 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3012 struct cfg80211_csa_settings *params, 3013 u32 *changed) 3014 { 3015 struct ieee80211_csa_settings csa = {}; 3016 int err; 3017 3018 switch (sdata->vif.type) { 3019 case NL80211_IFTYPE_AP: 3020 sdata->u.ap.next_beacon = 3021 cfg80211_beacon_dup(¶ms->beacon_after); 3022 if (!sdata->u.ap.next_beacon) 3023 return -ENOMEM; 3024 3025 /* 3026 * With a count of 0, we don't have to wait for any 3027 * TBTT before switching, so complete the CSA 3028 * immediately. In theory, with a count == 1 we 3029 * should delay the switch until just before the next 3030 * TBTT, but that would complicate things so we switch 3031 * immediately too. If we would delay the switch 3032 * until the next TBTT, we would have to set the probe 3033 * response here. 3034 * 3035 * TODO: A channel switch with count <= 1 without 3036 * sending a CSA action frame is kind of useless, 3037 * because the clients won't know we're changing 3038 * channels. The action frame must be implemented 3039 * either here or in the userspace. 3040 */ 3041 if (params->count <= 1) 3042 break; 3043 3044 if ((params->n_counter_offsets_beacon > 3045 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3046 (params->n_counter_offsets_presp > 3047 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3048 return -EINVAL; 3049 3050 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3051 csa.counter_offsets_presp = params->counter_offsets_presp; 3052 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3053 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3054 csa.count = params->count; 3055 3056 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3057 if (err < 0) { 3058 kfree(sdata->u.ap.next_beacon); 3059 return err; 3060 } 3061 *changed |= err; 3062 3063 break; 3064 case NL80211_IFTYPE_ADHOC: 3065 if (!sdata->vif.bss_conf.ibss_joined) 3066 return -EINVAL; 3067 3068 if (params->chandef.width != sdata->u.ibss.chandef.width) 3069 return -EINVAL; 3070 3071 switch (params->chandef.width) { 3072 case NL80211_CHAN_WIDTH_40: 3073 if (cfg80211_get_chandef_type(¶ms->chandef) != 3074 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3075 return -EINVAL; 3076 case NL80211_CHAN_WIDTH_5: 3077 case NL80211_CHAN_WIDTH_10: 3078 case NL80211_CHAN_WIDTH_20_NOHT: 3079 case NL80211_CHAN_WIDTH_20: 3080 break; 3081 default: 3082 return -EINVAL; 3083 } 3084 3085 /* changes into another band are not supported */ 3086 if (sdata->u.ibss.chandef.chan->band != 3087 params->chandef.chan->band) 3088 return -EINVAL; 3089 3090 /* see comments in the NL80211_IFTYPE_AP block */ 3091 if (params->count > 1) { 3092 err = ieee80211_ibss_csa_beacon(sdata, params); 3093 if (err < 0) 3094 return err; 3095 *changed |= err; 3096 } 3097 3098 ieee80211_send_action_csa(sdata, params); 3099 3100 break; 3101 #ifdef CONFIG_MAC80211_MESH 3102 case NL80211_IFTYPE_MESH_POINT: { 3103 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3104 3105 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3106 return -EINVAL; 3107 3108 /* changes into another band are not supported */ 3109 if (sdata->vif.bss_conf.chandef.chan->band != 3110 params->chandef.chan->band) 3111 return -EINVAL; 3112 3113 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3114 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3115 if (!ifmsh->pre_value) 3116 ifmsh->pre_value = 1; 3117 else 3118 ifmsh->pre_value++; 3119 } 3120 3121 /* see comments in the NL80211_IFTYPE_AP block */ 3122 if (params->count > 1) { 3123 err = ieee80211_mesh_csa_beacon(sdata, params); 3124 if (err < 0) { 3125 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3126 return err; 3127 } 3128 *changed |= err; 3129 } 3130 3131 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3132 ieee80211_send_action_csa(sdata, params); 3133 3134 break; 3135 } 3136 #endif 3137 default: 3138 return -EOPNOTSUPP; 3139 } 3140 3141 return 0; 3142 } 3143 3144 static int 3145 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3146 struct cfg80211_csa_settings *params) 3147 { 3148 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3149 struct ieee80211_local *local = sdata->local; 3150 struct ieee80211_channel_switch ch_switch; 3151 struct ieee80211_chanctx_conf *conf; 3152 struct ieee80211_chanctx *chanctx; 3153 u32 changed = 0; 3154 int err; 3155 3156 sdata_assert_lock(sdata); 3157 lockdep_assert_held(&local->mtx); 3158 3159 if (!list_empty(&local->roc_list) || local->scanning) 3160 return -EBUSY; 3161 3162 if (sdata->wdev.cac_started) 3163 return -EBUSY; 3164 3165 if (cfg80211_chandef_identical(¶ms->chandef, 3166 &sdata->vif.bss_conf.chandef)) 3167 return -EINVAL; 3168 3169 /* don't allow another channel switch if one is already active. */ 3170 if (sdata->vif.csa_active) 3171 return -EBUSY; 3172 3173 mutex_lock(&local->chanctx_mtx); 3174 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3175 lockdep_is_held(&local->chanctx_mtx)); 3176 if (!conf) { 3177 err = -EBUSY; 3178 goto out; 3179 } 3180 3181 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3182 3183 ch_switch.timestamp = 0; 3184 ch_switch.device_timestamp = 0; 3185 ch_switch.block_tx = params->block_tx; 3186 ch_switch.chandef = params->chandef; 3187 ch_switch.count = params->count; 3188 3189 err = drv_pre_channel_switch(sdata, &ch_switch); 3190 if (err) 3191 goto out; 3192 3193 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3194 chanctx->mode, 3195 params->radar_required); 3196 if (err) 3197 goto out; 3198 3199 /* if reservation is invalid then this will fail */ 3200 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3201 if (err) { 3202 ieee80211_vif_unreserve_chanctx(sdata); 3203 goto out; 3204 } 3205 3206 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3207 if (err) { 3208 ieee80211_vif_unreserve_chanctx(sdata); 3209 goto out; 3210 } 3211 3212 sdata->csa_chandef = params->chandef; 3213 sdata->csa_block_tx = params->block_tx; 3214 sdata->vif.csa_active = true; 3215 3216 if (sdata->csa_block_tx) 3217 ieee80211_stop_vif_queues(local, sdata, 3218 IEEE80211_QUEUE_STOP_REASON_CSA); 3219 3220 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3221 params->count); 3222 3223 if (changed) { 3224 ieee80211_bss_info_change_notify(sdata, changed); 3225 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3226 } else { 3227 /* if the beacon didn't change, we can finalize immediately */ 3228 ieee80211_csa_finalize(sdata); 3229 } 3230 3231 out: 3232 mutex_unlock(&local->chanctx_mtx); 3233 return err; 3234 } 3235 3236 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3237 struct cfg80211_csa_settings *params) 3238 { 3239 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3240 struct ieee80211_local *local = sdata->local; 3241 int err; 3242 3243 mutex_lock(&local->mtx); 3244 err = __ieee80211_channel_switch(wiphy, dev, params); 3245 mutex_unlock(&local->mtx); 3246 3247 return err; 3248 } 3249 3250 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3251 { 3252 lockdep_assert_held(&local->mtx); 3253 3254 local->roc_cookie_counter++; 3255 3256 /* wow, you wrapped 64 bits ... more likely a bug */ 3257 if (WARN_ON(local->roc_cookie_counter == 0)) 3258 local->roc_cookie_counter++; 3259 3260 return local->roc_cookie_counter; 3261 } 3262 3263 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3264 u64 *cookie, gfp_t gfp) 3265 { 3266 unsigned long spin_flags; 3267 struct sk_buff *ack_skb; 3268 int id; 3269 3270 ack_skb = skb_copy(skb, gfp); 3271 if (!ack_skb) 3272 return -ENOMEM; 3273 3274 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3275 id = idr_alloc(&local->ack_status_frames, ack_skb, 3276 1, 0x10000, GFP_ATOMIC); 3277 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3278 3279 if (id < 0) { 3280 kfree_skb(ack_skb); 3281 return -ENOMEM; 3282 } 3283 3284 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3285 3286 *cookie = ieee80211_mgmt_tx_cookie(local); 3287 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3288 3289 return 0; 3290 } 3291 3292 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3293 struct wireless_dev *wdev, 3294 u16 frame_type, bool reg) 3295 { 3296 struct ieee80211_local *local = wiphy_priv(wiphy); 3297 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3298 3299 switch (frame_type) { 3300 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3301 if (reg) { 3302 local->probe_req_reg++; 3303 sdata->vif.probe_req_reg++; 3304 } else { 3305 if (local->probe_req_reg) 3306 local->probe_req_reg--; 3307 3308 if (sdata->vif.probe_req_reg) 3309 sdata->vif.probe_req_reg--; 3310 } 3311 3312 if (!local->open_count) 3313 break; 3314 3315 if (sdata->vif.probe_req_reg == 1) 3316 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3317 FIF_PROBE_REQ); 3318 else if (sdata->vif.probe_req_reg == 0) 3319 drv_config_iface_filter(local, sdata, 0, 3320 FIF_PROBE_REQ); 3321 3322 ieee80211_configure_filter(local); 3323 break; 3324 default: 3325 break; 3326 } 3327 } 3328 3329 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3330 { 3331 struct ieee80211_local *local = wiphy_priv(wiphy); 3332 3333 if (local->started) 3334 return -EOPNOTSUPP; 3335 3336 return drv_set_antenna(local, tx_ant, rx_ant); 3337 } 3338 3339 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3340 { 3341 struct ieee80211_local *local = wiphy_priv(wiphy); 3342 3343 return drv_get_antenna(local, tx_ant, rx_ant); 3344 } 3345 3346 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3347 struct net_device *dev, 3348 struct cfg80211_gtk_rekey_data *data) 3349 { 3350 struct ieee80211_local *local = wiphy_priv(wiphy); 3351 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3352 3353 if (!local->ops->set_rekey_data) 3354 return -EOPNOTSUPP; 3355 3356 drv_set_rekey_data(local, sdata, data); 3357 3358 return 0; 3359 } 3360 3361 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3362 const u8 *peer, u64 *cookie) 3363 { 3364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3365 struct ieee80211_local *local = sdata->local; 3366 struct ieee80211_qos_hdr *nullfunc; 3367 struct sk_buff *skb; 3368 int size = sizeof(*nullfunc); 3369 __le16 fc; 3370 bool qos; 3371 struct ieee80211_tx_info *info; 3372 struct sta_info *sta; 3373 struct ieee80211_chanctx_conf *chanctx_conf; 3374 enum nl80211_band band; 3375 int ret; 3376 3377 /* the lock is needed to assign the cookie later */ 3378 mutex_lock(&local->mtx); 3379 3380 rcu_read_lock(); 3381 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3382 if (WARN_ON(!chanctx_conf)) { 3383 ret = -EINVAL; 3384 goto unlock; 3385 } 3386 band = chanctx_conf->def.chan->band; 3387 sta = sta_info_get_bss(sdata, peer); 3388 if (sta) { 3389 qos = sta->sta.wme; 3390 } else { 3391 ret = -ENOLINK; 3392 goto unlock; 3393 } 3394 3395 if (qos) { 3396 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3397 IEEE80211_STYPE_QOS_NULLFUNC | 3398 IEEE80211_FCTL_FROMDS); 3399 } else { 3400 size -= 2; 3401 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3402 IEEE80211_STYPE_NULLFUNC | 3403 IEEE80211_FCTL_FROMDS); 3404 } 3405 3406 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3407 if (!skb) { 3408 ret = -ENOMEM; 3409 goto unlock; 3410 } 3411 3412 skb->dev = dev; 3413 3414 skb_reserve(skb, local->hw.extra_tx_headroom); 3415 3416 nullfunc = (void *) skb_put(skb, size); 3417 nullfunc->frame_control = fc; 3418 nullfunc->duration_id = 0; 3419 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3420 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3421 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3422 nullfunc->seq_ctrl = 0; 3423 3424 info = IEEE80211_SKB_CB(skb); 3425 3426 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3427 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3428 info->band = band; 3429 3430 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3431 skb->priority = 7; 3432 if (qos) 3433 nullfunc->qos_ctrl = cpu_to_le16(7); 3434 3435 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3436 if (ret) { 3437 kfree_skb(skb); 3438 goto unlock; 3439 } 3440 3441 local_bh_disable(); 3442 ieee80211_xmit(sdata, sta, skb); 3443 local_bh_enable(); 3444 3445 ret = 0; 3446 unlock: 3447 rcu_read_unlock(); 3448 mutex_unlock(&local->mtx); 3449 3450 return ret; 3451 } 3452 3453 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3454 struct wireless_dev *wdev, 3455 struct cfg80211_chan_def *chandef) 3456 { 3457 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3458 struct ieee80211_local *local = wiphy_priv(wiphy); 3459 struct ieee80211_chanctx_conf *chanctx_conf; 3460 int ret = -ENODATA; 3461 3462 rcu_read_lock(); 3463 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3464 if (chanctx_conf) { 3465 *chandef = sdata->vif.bss_conf.chandef; 3466 ret = 0; 3467 } else if (local->open_count > 0 && 3468 local->open_count == local->monitors && 3469 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3470 if (local->use_chanctx) 3471 *chandef = local->monitor_chandef; 3472 else 3473 *chandef = local->_oper_chandef; 3474 ret = 0; 3475 } 3476 rcu_read_unlock(); 3477 3478 return ret; 3479 } 3480 3481 #ifdef CONFIG_PM 3482 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3483 { 3484 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3485 } 3486 #endif 3487 3488 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3489 struct net_device *dev, 3490 struct cfg80211_qos_map *qos_map) 3491 { 3492 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3493 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3494 3495 if (qos_map) { 3496 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3497 if (!new_qos_map) 3498 return -ENOMEM; 3499 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3500 } else { 3501 /* A NULL qos_map was passed to disable QoS mapping */ 3502 new_qos_map = NULL; 3503 } 3504 3505 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3506 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3507 if (old_qos_map) 3508 kfree_rcu(old_qos_map, rcu_head); 3509 3510 return 0; 3511 } 3512 3513 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3514 struct net_device *dev, 3515 struct cfg80211_chan_def *chandef) 3516 { 3517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3518 int ret; 3519 u32 changed = 0; 3520 3521 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3522 if (ret == 0) 3523 ieee80211_bss_info_change_notify(sdata, changed); 3524 3525 return ret; 3526 } 3527 3528 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3529 u8 tsid, const u8 *peer, u8 up, 3530 u16 admitted_time) 3531 { 3532 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3533 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3534 int ac = ieee802_1d_to_ac[up]; 3535 3536 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3537 return -EOPNOTSUPP; 3538 3539 if (!(sdata->wmm_acm & BIT(up))) 3540 return -EINVAL; 3541 3542 if (ifmgd->tx_tspec[ac].admitted_time) 3543 return -EBUSY; 3544 3545 if (admitted_time) { 3546 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3547 ifmgd->tx_tspec[ac].tsid = tsid; 3548 ifmgd->tx_tspec[ac].up = up; 3549 } 3550 3551 return 0; 3552 } 3553 3554 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3555 u8 tsid, const u8 *peer) 3556 { 3557 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3558 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3559 struct ieee80211_local *local = wiphy_priv(wiphy); 3560 int ac; 3561 3562 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3563 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3564 3565 /* skip unused entries */ 3566 if (!tx_tspec->admitted_time) 3567 continue; 3568 3569 if (tx_tspec->tsid != tsid) 3570 continue; 3571 3572 /* due to this new packets will be reassigned to non-ACM ACs */ 3573 tx_tspec->up = -1; 3574 3575 /* Make sure that all packets have been sent to avoid to 3576 * restore the QoS params on packets that are still on the 3577 * queues. 3578 */ 3579 synchronize_net(); 3580 ieee80211_flush_queues(local, sdata, false); 3581 3582 /* restore the normal QoS parameters 3583 * (unconditionally to avoid races) 3584 */ 3585 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3586 tx_tspec->downgraded = false; 3587 ieee80211_sta_handle_tspec_ac_params(sdata); 3588 3589 /* finally clear all the data */ 3590 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3591 3592 return 0; 3593 } 3594 3595 return -ENOENT; 3596 } 3597 3598 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3599 u8 inst_id, 3600 enum nl80211_nan_func_term_reason reason, 3601 gfp_t gfp) 3602 { 3603 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3604 struct cfg80211_nan_func *func; 3605 u64 cookie; 3606 3607 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3608 return; 3609 3610 spin_lock_bh(&sdata->u.nan.func_lock); 3611 3612 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3613 if (WARN_ON(!func)) { 3614 spin_unlock_bh(&sdata->u.nan.func_lock); 3615 return; 3616 } 3617 3618 cookie = func->cookie; 3619 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3620 3621 spin_unlock_bh(&sdata->u.nan.func_lock); 3622 3623 cfg80211_free_nan_func(func); 3624 3625 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3626 reason, cookie, gfp); 3627 } 3628 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3629 3630 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3631 struct cfg80211_nan_match_params *match, 3632 gfp_t gfp) 3633 { 3634 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3635 struct cfg80211_nan_func *func; 3636 3637 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3638 return; 3639 3640 spin_lock_bh(&sdata->u.nan.func_lock); 3641 3642 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3643 if (WARN_ON(!func)) { 3644 spin_unlock_bh(&sdata->u.nan.func_lock); 3645 return; 3646 } 3647 match->cookie = func->cookie; 3648 3649 spin_unlock_bh(&sdata->u.nan.func_lock); 3650 3651 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3652 } 3653 EXPORT_SYMBOL(ieee80211_nan_func_match); 3654 3655 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3656 struct net_device *dev, 3657 const bool enabled) 3658 { 3659 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3660 3661 sdata->u.ap.multicast_to_unicast = enabled; 3662 3663 return 0; 3664 } 3665 3666 const struct cfg80211_ops mac80211_config_ops = { 3667 .add_virtual_intf = ieee80211_add_iface, 3668 .del_virtual_intf = ieee80211_del_iface, 3669 .change_virtual_intf = ieee80211_change_iface, 3670 .start_p2p_device = ieee80211_start_p2p_device, 3671 .stop_p2p_device = ieee80211_stop_p2p_device, 3672 .add_key = ieee80211_add_key, 3673 .del_key = ieee80211_del_key, 3674 .get_key = ieee80211_get_key, 3675 .set_default_key = ieee80211_config_default_key, 3676 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3677 .start_ap = ieee80211_start_ap, 3678 .change_beacon = ieee80211_change_beacon, 3679 .stop_ap = ieee80211_stop_ap, 3680 .add_station = ieee80211_add_station, 3681 .del_station = ieee80211_del_station, 3682 .change_station = ieee80211_change_station, 3683 .get_station = ieee80211_get_station, 3684 .dump_station = ieee80211_dump_station, 3685 .dump_survey = ieee80211_dump_survey, 3686 #ifdef CONFIG_MAC80211_MESH 3687 .add_mpath = ieee80211_add_mpath, 3688 .del_mpath = ieee80211_del_mpath, 3689 .change_mpath = ieee80211_change_mpath, 3690 .get_mpath = ieee80211_get_mpath, 3691 .dump_mpath = ieee80211_dump_mpath, 3692 .get_mpp = ieee80211_get_mpp, 3693 .dump_mpp = ieee80211_dump_mpp, 3694 .update_mesh_config = ieee80211_update_mesh_config, 3695 .get_mesh_config = ieee80211_get_mesh_config, 3696 .join_mesh = ieee80211_join_mesh, 3697 .leave_mesh = ieee80211_leave_mesh, 3698 #endif 3699 .join_ocb = ieee80211_join_ocb, 3700 .leave_ocb = ieee80211_leave_ocb, 3701 .change_bss = ieee80211_change_bss, 3702 .set_txq_params = ieee80211_set_txq_params, 3703 .set_monitor_channel = ieee80211_set_monitor_channel, 3704 .suspend = ieee80211_suspend, 3705 .resume = ieee80211_resume, 3706 .scan = ieee80211_scan, 3707 .abort_scan = ieee80211_abort_scan, 3708 .sched_scan_start = ieee80211_sched_scan_start, 3709 .sched_scan_stop = ieee80211_sched_scan_stop, 3710 .auth = ieee80211_auth, 3711 .assoc = ieee80211_assoc, 3712 .deauth = ieee80211_deauth, 3713 .disassoc = ieee80211_disassoc, 3714 .join_ibss = ieee80211_join_ibss, 3715 .leave_ibss = ieee80211_leave_ibss, 3716 .set_mcast_rate = ieee80211_set_mcast_rate, 3717 .set_wiphy_params = ieee80211_set_wiphy_params, 3718 .set_tx_power = ieee80211_set_tx_power, 3719 .get_tx_power = ieee80211_get_tx_power, 3720 .set_wds_peer = ieee80211_set_wds_peer, 3721 .rfkill_poll = ieee80211_rfkill_poll, 3722 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3723 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3724 .set_power_mgmt = ieee80211_set_power_mgmt, 3725 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3726 .remain_on_channel = ieee80211_remain_on_channel, 3727 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3728 .mgmt_tx = ieee80211_mgmt_tx, 3729 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3730 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3731 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3732 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3733 .set_antenna = ieee80211_set_antenna, 3734 .get_antenna = ieee80211_get_antenna, 3735 .set_rekey_data = ieee80211_set_rekey_data, 3736 .tdls_oper = ieee80211_tdls_oper, 3737 .tdls_mgmt = ieee80211_tdls_mgmt, 3738 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3739 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3740 .probe_client = ieee80211_probe_client, 3741 .set_noack_map = ieee80211_set_noack_map, 3742 #ifdef CONFIG_PM 3743 .set_wakeup = ieee80211_set_wakeup, 3744 #endif 3745 .get_channel = ieee80211_cfg_get_channel, 3746 .start_radar_detection = ieee80211_start_radar_detection, 3747 .channel_switch = ieee80211_channel_switch, 3748 .set_qos_map = ieee80211_set_qos_map, 3749 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3750 .add_tx_ts = ieee80211_add_tx_ts, 3751 .del_tx_ts = ieee80211_del_tx_ts, 3752 .start_nan = ieee80211_start_nan, 3753 .stop_nan = ieee80211_stop_nan, 3754 .nan_change_conf = ieee80211_nan_change_conf, 3755 .add_nan_func = ieee80211_add_nan_func, 3756 .del_nan_func = ieee80211_del_nan_func, 3757 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3758 }; 3759