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 = 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 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1880 if (setup->is_authenticated) 1881 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1882 if (setup->is_secure) 1883 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1884 1885 /* mcast rate setting in Mesh Node */ 1886 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1887 sizeof(setup->mcast_rate)); 1888 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1889 1890 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1891 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1892 1893 return 0; 1894 } 1895 1896 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1897 struct net_device *dev, u32 mask, 1898 const struct mesh_config *nconf) 1899 { 1900 struct mesh_config *conf; 1901 struct ieee80211_sub_if_data *sdata; 1902 struct ieee80211_if_mesh *ifmsh; 1903 1904 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1905 ifmsh = &sdata->u.mesh; 1906 1907 /* Set the config options which we are interested in setting */ 1908 conf = &(sdata->u.mesh.mshcfg); 1909 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1910 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1911 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1912 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1913 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1914 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1915 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1916 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1917 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1918 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1919 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1920 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1921 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1922 conf->element_ttl = nconf->element_ttl; 1923 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1924 if (ifmsh->user_mpm) 1925 return -EBUSY; 1926 conf->auto_open_plinks = nconf->auto_open_plinks; 1927 } 1928 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1929 conf->dot11MeshNbrOffsetMaxNeighbor = 1930 nconf->dot11MeshNbrOffsetMaxNeighbor; 1931 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1932 conf->dot11MeshHWMPmaxPREQretries = 1933 nconf->dot11MeshHWMPmaxPREQretries; 1934 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1935 conf->path_refresh_time = nconf->path_refresh_time; 1936 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1937 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1938 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1939 conf->dot11MeshHWMPactivePathTimeout = 1940 nconf->dot11MeshHWMPactivePathTimeout; 1941 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1942 conf->dot11MeshHWMPpreqMinInterval = 1943 nconf->dot11MeshHWMPpreqMinInterval; 1944 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1945 conf->dot11MeshHWMPperrMinInterval = 1946 nconf->dot11MeshHWMPperrMinInterval; 1947 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1948 mask)) 1949 conf->dot11MeshHWMPnetDiameterTraversalTime = 1950 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1952 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1953 ieee80211_mesh_root_setup(ifmsh); 1954 } 1955 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1956 /* our current gate announcement implementation rides on root 1957 * announcements, so require this ifmsh to also be a root node 1958 * */ 1959 if (nconf->dot11MeshGateAnnouncementProtocol && 1960 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1961 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1962 ieee80211_mesh_root_setup(ifmsh); 1963 } 1964 conf->dot11MeshGateAnnouncementProtocol = 1965 nconf->dot11MeshGateAnnouncementProtocol; 1966 } 1967 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1968 conf->dot11MeshHWMPRannInterval = 1969 nconf->dot11MeshHWMPRannInterval; 1970 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1971 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1972 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1973 /* our RSSI threshold implementation is supported only for 1974 * devices that report signal in dBm. 1975 */ 1976 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 1977 return -ENOTSUPP; 1978 conf->rssi_threshold = nconf->rssi_threshold; 1979 } 1980 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1981 conf->ht_opmode = nconf->ht_opmode; 1982 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1983 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1984 } 1985 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1986 conf->dot11MeshHWMPactivePathToRootTimeout = 1987 nconf->dot11MeshHWMPactivePathToRootTimeout; 1988 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1989 conf->dot11MeshHWMProotInterval = 1990 nconf->dot11MeshHWMProotInterval; 1991 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1992 conf->dot11MeshHWMPconfirmationInterval = 1993 nconf->dot11MeshHWMPconfirmationInterval; 1994 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1995 conf->power_mode = nconf->power_mode; 1996 ieee80211_mps_local_status_update(sdata); 1997 } 1998 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1999 conf->dot11MeshAwakeWindowDuration = 2000 nconf->dot11MeshAwakeWindowDuration; 2001 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2002 conf->plink_timeout = nconf->plink_timeout; 2003 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2004 return 0; 2005 } 2006 2007 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2008 const struct mesh_config *conf, 2009 const struct mesh_setup *setup) 2010 { 2011 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2012 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2013 int err; 2014 2015 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2016 err = copy_mesh_setup(ifmsh, setup); 2017 if (err) 2018 return err; 2019 2020 /* can mesh use other SMPS modes? */ 2021 sdata->smps_mode = IEEE80211_SMPS_OFF; 2022 sdata->needed_rx_chains = sdata->local->rx_chains; 2023 2024 mutex_lock(&sdata->local->mtx); 2025 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2026 IEEE80211_CHANCTX_SHARED); 2027 mutex_unlock(&sdata->local->mtx); 2028 if (err) 2029 return err; 2030 2031 return ieee80211_start_mesh(sdata); 2032 } 2033 2034 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2035 { 2036 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2037 2038 ieee80211_stop_mesh(sdata); 2039 mutex_lock(&sdata->local->mtx); 2040 ieee80211_vif_release_channel(sdata); 2041 mutex_unlock(&sdata->local->mtx); 2042 2043 return 0; 2044 } 2045 #endif 2046 2047 static int ieee80211_change_bss(struct wiphy *wiphy, 2048 struct net_device *dev, 2049 struct bss_parameters *params) 2050 { 2051 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2052 struct ieee80211_supported_band *sband; 2053 u32 changed = 0; 2054 2055 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2056 return -ENOENT; 2057 2058 sband = ieee80211_get_sband(sdata); 2059 if (!sband) 2060 return -EINVAL; 2061 2062 if (params->use_cts_prot >= 0) { 2063 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2064 changed |= BSS_CHANGED_ERP_CTS_PROT; 2065 } 2066 if (params->use_short_preamble >= 0) { 2067 sdata->vif.bss_conf.use_short_preamble = 2068 params->use_short_preamble; 2069 changed |= BSS_CHANGED_ERP_PREAMBLE; 2070 } 2071 2072 if (!sdata->vif.bss_conf.use_short_slot && 2073 sband->band == NL80211_BAND_5GHZ) { 2074 sdata->vif.bss_conf.use_short_slot = true; 2075 changed |= BSS_CHANGED_ERP_SLOT; 2076 } 2077 2078 if (params->use_short_slot_time >= 0) { 2079 sdata->vif.bss_conf.use_short_slot = 2080 params->use_short_slot_time; 2081 changed |= BSS_CHANGED_ERP_SLOT; 2082 } 2083 2084 if (params->basic_rates) { 2085 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2086 wiphy->bands[sband->band], 2087 params->basic_rates, 2088 params->basic_rates_len, 2089 &sdata->vif.bss_conf.basic_rates); 2090 changed |= BSS_CHANGED_BASIC_RATES; 2091 ieee80211_check_rate_mask(sdata); 2092 } 2093 2094 if (params->ap_isolate >= 0) { 2095 if (params->ap_isolate) 2096 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2097 else 2098 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2099 ieee80211_check_fast_rx_iface(sdata); 2100 } 2101 2102 if (params->ht_opmode >= 0) { 2103 sdata->vif.bss_conf.ht_operation_mode = 2104 (u16) params->ht_opmode; 2105 changed |= BSS_CHANGED_HT; 2106 } 2107 2108 if (params->p2p_ctwindow >= 0) { 2109 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2110 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2111 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2112 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2113 changed |= BSS_CHANGED_P2P_PS; 2114 } 2115 2116 if (params->p2p_opp_ps > 0) { 2117 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2118 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2119 changed |= BSS_CHANGED_P2P_PS; 2120 } else if (params->p2p_opp_ps == 0) { 2121 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2122 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2123 changed |= BSS_CHANGED_P2P_PS; 2124 } 2125 2126 ieee80211_bss_info_change_notify(sdata, changed); 2127 2128 return 0; 2129 } 2130 2131 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2132 struct net_device *dev, 2133 struct ieee80211_txq_params *params) 2134 { 2135 struct ieee80211_local *local = wiphy_priv(wiphy); 2136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2137 struct ieee80211_tx_queue_params p; 2138 2139 if (!local->ops->conf_tx) 2140 return -EOPNOTSUPP; 2141 2142 if (local->hw.queues < IEEE80211_NUM_ACS) 2143 return -EOPNOTSUPP; 2144 2145 memset(&p, 0, sizeof(p)); 2146 p.aifs = params->aifs; 2147 p.cw_max = params->cwmax; 2148 p.cw_min = params->cwmin; 2149 p.txop = params->txop; 2150 2151 /* 2152 * Setting tx queue params disables u-apsd because it's only 2153 * called in master mode. 2154 */ 2155 p.uapsd = false; 2156 2157 sdata->tx_conf[params->ac] = p; 2158 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2159 wiphy_debug(local->hw.wiphy, 2160 "failed to set TX queue parameters for AC %d\n", 2161 params->ac); 2162 return -EINVAL; 2163 } 2164 2165 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2166 2167 return 0; 2168 } 2169 2170 #ifdef CONFIG_PM 2171 static int ieee80211_suspend(struct wiphy *wiphy, 2172 struct cfg80211_wowlan *wowlan) 2173 { 2174 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2175 } 2176 2177 static int ieee80211_resume(struct wiphy *wiphy) 2178 { 2179 return __ieee80211_resume(wiphy_priv(wiphy)); 2180 } 2181 #else 2182 #define ieee80211_suspend NULL 2183 #define ieee80211_resume NULL 2184 #endif 2185 2186 static int ieee80211_scan(struct wiphy *wiphy, 2187 struct cfg80211_scan_request *req) 2188 { 2189 struct ieee80211_sub_if_data *sdata; 2190 2191 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2192 2193 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2194 case NL80211_IFTYPE_STATION: 2195 case NL80211_IFTYPE_ADHOC: 2196 case NL80211_IFTYPE_MESH_POINT: 2197 case NL80211_IFTYPE_P2P_CLIENT: 2198 case NL80211_IFTYPE_P2P_DEVICE: 2199 break; 2200 case NL80211_IFTYPE_P2P_GO: 2201 if (sdata->local->ops->hw_scan) 2202 break; 2203 /* 2204 * FIXME: implement NoA while scanning in software, 2205 * for now fall through to allow scanning only when 2206 * beaconing hasn't been configured yet 2207 */ 2208 case NL80211_IFTYPE_AP: 2209 /* 2210 * If the scan has been forced (and the driver supports 2211 * forcing), don't care about being beaconing already. 2212 * This will create problems to the attached stations (e.g. all 2213 * the frames sent while scanning on other channel will be 2214 * lost) 2215 */ 2216 if (sdata->u.ap.beacon && 2217 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2218 !(req->flags & NL80211_SCAN_FLAG_AP))) 2219 return -EOPNOTSUPP; 2220 break; 2221 case NL80211_IFTYPE_NAN: 2222 default: 2223 return -EOPNOTSUPP; 2224 } 2225 2226 return ieee80211_request_scan(sdata, req); 2227 } 2228 2229 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2230 { 2231 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2232 } 2233 2234 static int 2235 ieee80211_sched_scan_start(struct wiphy *wiphy, 2236 struct net_device *dev, 2237 struct cfg80211_sched_scan_request *req) 2238 { 2239 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2240 2241 if (!sdata->local->ops->sched_scan_start) 2242 return -EOPNOTSUPP; 2243 2244 return ieee80211_request_sched_scan_start(sdata, req); 2245 } 2246 2247 static int 2248 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2249 u64 reqid) 2250 { 2251 struct ieee80211_local *local = wiphy_priv(wiphy); 2252 2253 if (!local->ops->sched_scan_stop) 2254 return -EOPNOTSUPP; 2255 2256 return ieee80211_request_sched_scan_stop(local); 2257 } 2258 2259 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2260 struct cfg80211_auth_request *req) 2261 { 2262 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2263 } 2264 2265 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2266 struct cfg80211_assoc_request *req) 2267 { 2268 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2269 } 2270 2271 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2272 struct cfg80211_deauth_request *req) 2273 { 2274 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2275 } 2276 2277 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2278 struct cfg80211_disassoc_request *req) 2279 { 2280 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2281 } 2282 2283 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2284 struct cfg80211_ibss_params *params) 2285 { 2286 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2287 } 2288 2289 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2290 { 2291 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2292 } 2293 2294 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2295 struct ocb_setup *setup) 2296 { 2297 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2298 } 2299 2300 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2301 { 2302 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2303 } 2304 2305 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2306 int rate[NUM_NL80211_BANDS]) 2307 { 2308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2309 2310 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2311 sizeof(int) * NUM_NL80211_BANDS); 2312 2313 return 0; 2314 } 2315 2316 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2317 { 2318 struct ieee80211_local *local = wiphy_priv(wiphy); 2319 int err; 2320 2321 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2322 ieee80211_check_fast_xmit_all(local); 2323 2324 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2325 2326 if (err) { 2327 ieee80211_check_fast_xmit_all(local); 2328 return err; 2329 } 2330 } 2331 2332 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2333 (changed & WIPHY_PARAM_DYN_ACK)) { 2334 s16 coverage_class; 2335 2336 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2337 wiphy->coverage_class : -1; 2338 err = drv_set_coverage_class(local, coverage_class); 2339 2340 if (err) 2341 return err; 2342 } 2343 2344 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2345 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2346 2347 if (err) 2348 return err; 2349 } 2350 2351 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2352 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2353 return -EINVAL; 2354 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2355 } 2356 if (changed & WIPHY_PARAM_RETRY_LONG) { 2357 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2358 return -EINVAL; 2359 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2360 } 2361 if (changed & 2362 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2363 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2364 2365 return 0; 2366 } 2367 2368 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2369 struct wireless_dev *wdev, 2370 enum nl80211_tx_power_setting type, int mbm) 2371 { 2372 struct ieee80211_local *local = wiphy_priv(wiphy); 2373 struct ieee80211_sub_if_data *sdata; 2374 enum nl80211_tx_power_setting txp_type = type; 2375 bool update_txp_type = false; 2376 2377 if (wdev) { 2378 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2379 2380 switch (type) { 2381 case NL80211_TX_POWER_AUTOMATIC: 2382 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2383 txp_type = NL80211_TX_POWER_LIMITED; 2384 break; 2385 case NL80211_TX_POWER_LIMITED: 2386 case NL80211_TX_POWER_FIXED: 2387 if (mbm < 0 || (mbm % 100)) 2388 return -EOPNOTSUPP; 2389 sdata->user_power_level = MBM_TO_DBM(mbm); 2390 break; 2391 } 2392 2393 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2394 update_txp_type = true; 2395 sdata->vif.bss_conf.txpower_type = txp_type; 2396 } 2397 2398 ieee80211_recalc_txpower(sdata, update_txp_type); 2399 2400 return 0; 2401 } 2402 2403 switch (type) { 2404 case NL80211_TX_POWER_AUTOMATIC: 2405 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2406 txp_type = NL80211_TX_POWER_LIMITED; 2407 break; 2408 case NL80211_TX_POWER_LIMITED: 2409 case NL80211_TX_POWER_FIXED: 2410 if (mbm < 0 || (mbm % 100)) 2411 return -EOPNOTSUPP; 2412 local->user_power_level = MBM_TO_DBM(mbm); 2413 break; 2414 } 2415 2416 mutex_lock(&local->iflist_mtx); 2417 list_for_each_entry(sdata, &local->interfaces, list) { 2418 sdata->user_power_level = local->user_power_level; 2419 if (txp_type != sdata->vif.bss_conf.txpower_type) 2420 update_txp_type = true; 2421 sdata->vif.bss_conf.txpower_type = txp_type; 2422 } 2423 list_for_each_entry(sdata, &local->interfaces, list) 2424 ieee80211_recalc_txpower(sdata, update_txp_type); 2425 mutex_unlock(&local->iflist_mtx); 2426 2427 return 0; 2428 } 2429 2430 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2431 struct wireless_dev *wdev, 2432 int *dbm) 2433 { 2434 struct ieee80211_local *local = wiphy_priv(wiphy); 2435 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2436 2437 if (local->ops->get_txpower) 2438 return drv_get_txpower(local, sdata, dbm); 2439 2440 if (!local->use_chanctx) 2441 *dbm = local->hw.conf.power_level; 2442 else 2443 *dbm = sdata->vif.bss_conf.txpower; 2444 2445 return 0; 2446 } 2447 2448 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2449 const u8 *addr) 2450 { 2451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2452 2453 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2454 2455 return 0; 2456 } 2457 2458 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2459 { 2460 struct ieee80211_local *local = wiphy_priv(wiphy); 2461 2462 drv_rfkill_poll(local); 2463 } 2464 2465 #ifdef CONFIG_NL80211_TESTMODE 2466 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2467 struct wireless_dev *wdev, 2468 void *data, int len) 2469 { 2470 struct ieee80211_local *local = wiphy_priv(wiphy); 2471 struct ieee80211_vif *vif = NULL; 2472 2473 if (!local->ops->testmode_cmd) 2474 return -EOPNOTSUPP; 2475 2476 if (wdev) { 2477 struct ieee80211_sub_if_data *sdata; 2478 2479 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2480 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2481 vif = &sdata->vif; 2482 } 2483 2484 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2485 } 2486 2487 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2488 struct sk_buff *skb, 2489 struct netlink_callback *cb, 2490 void *data, int len) 2491 { 2492 struct ieee80211_local *local = wiphy_priv(wiphy); 2493 2494 if (!local->ops->testmode_dump) 2495 return -EOPNOTSUPP; 2496 2497 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2498 } 2499 #endif 2500 2501 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2502 enum ieee80211_smps_mode smps_mode) 2503 { 2504 struct sta_info *sta; 2505 enum ieee80211_smps_mode old_req; 2506 2507 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2508 return -EINVAL; 2509 2510 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2511 return 0; 2512 2513 old_req = sdata->u.ap.req_smps; 2514 sdata->u.ap.req_smps = smps_mode; 2515 2516 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2517 if (old_req == smps_mode || 2518 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2519 return 0; 2520 2521 ht_dbg(sdata, 2522 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2523 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2524 2525 mutex_lock(&sdata->local->sta_mtx); 2526 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2527 /* 2528 * Only stations associated to our AP and 2529 * associated VLANs 2530 */ 2531 if (sta->sdata->bss != &sdata->u.ap) 2532 continue; 2533 2534 /* This station doesn't support MIMO - skip it */ 2535 if (sta_info_tx_streams(sta) == 1) 2536 continue; 2537 2538 /* 2539 * Don't wake up a STA just to send the action frame 2540 * unless we are getting more restrictive. 2541 */ 2542 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2543 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2544 smps_mode)) { 2545 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2546 sta->sta.addr); 2547 continue; 2548 } 2549 2550 /* 2551 * If the STA is not authorized, wait until it gets 2552 * authorized and the action frame will be sent then. 2553 */ 2554 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2555 continue; 2556 2557 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2558 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2559 sdata->vif.bss_conf.bssid); 2560 } 2561 mutex_unlock(&sdata->local->sta_mtx); 2562 2563 sdata->smps_mode = smps_mode; 2564 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2565 2566 return 0; 2567 } 2568 2569 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2570 enum ieee80211_smps_mode smps_mode) 2571 { 2572 const u8 *ap; 2573 enum ieee80211_smps_mode old_req; 2574 int err; 2575 struct sta_info *sta; 2576 bool tdls_peer_found = false; 2577 2578 lockdep_assert_held(&sdata->wdev.mtx); 2579 2580 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2581 return -EINVAL; 2582 2583 old_req = sdata->u.mgd.req_smps; 2584 sdata->u.mgd.req_smps = smps_mode; 2585 2586 if (old_req == smps_mode && 2587 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2588 return 0; 2589 2590 /* 2591 * If not associated, or current association is not an HT 2592 * association, there's no need to do anything, just store 2593 * the new value until we associate. 2594 */ 2595 if (!sdata->u.mgd.associated || 2596 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2597 return 0; 2598 2599 ap = sdata->u.mgd.associated->bssid; 2600 2601 rcu_read_lock(); 2602 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2603 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2604 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2605 continue; 2606 2607 tdls_peer_found = true; 2608 break; 2609 } 2610 rcu_read_unlock(); 2611 2612 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2613 if (tdls_peer_found || !sdata->u.mgd.powersave) 2614 smps_mode = IEEE80211_SMPS_OFF; 2615 else 2616 smps_mode = IEEE80211_SMPS_DYNAMIC; 2617 } 2618 2619 /* send SM PS frame to AP */ 2620 err = ieee80211_send_smps_action(sdata, smps_mode, 2621 ap, ap); 2622 if (err) 2623 sdata->u.mgd.req_smps = old_req; 2624 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2625 ieee80211_teardown_tdls_peers(sdata); 2626 2627 return err; 2628 } 2629 2630 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2631 bool enabled, int timeout) 2632 { 2633 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2634 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2635 2636 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2637 return -EOPNOTSUPP; 2638 2639 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2640 return -EOPNOTSUPP; 2641 2642 if (enabled == sdata->u.mgd.powersave && 2643 timeout == local->dynamic_ps_forced_timeout) 2644 return 0; 2645 2646 sdata->u.mgd.powersave = enabled; 2647 local->dynamic_ps_forced_timeout = timeout; 2648 2649 /* no change, but if automatic follow powersave */ 2650 sdata_lock(sdata); 2651 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2652 sdata_unlock(sdata); 2653 2654 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2655 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2656 2657 ieee80211_recalc_ps(local); 2658 ieee80211_recalc_ps_vif(sdata); 2659 2660 return 0; 2661 } 2662 2663 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2664 struct net_device *dev, 2665 s32 rssi_thold, u32 rssi_hyst) 2666 { 2667 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2668 struct ieee80211_vif *vif = &sdata->vif; 2669 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2670 2671 if (rssi_thold == bss_conf->cqm_rssi_thold && 2672 rssi_hyst == bss_conf->cqm_rssi_hyst) 2673 return 0; 2674 2675 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2676 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2677 return -EOPNOTSUPP; 2678 2679 bss_conf->cqm_rssi_thold = rssi_thold; 2680 bss_conf->cqm_rssi_hyst = rssi_hyst; 2681 bss_conf->cqm_rssi_low = 0; 2682 bss_conf->cqm_rssi_high = 0; 2683 sdata->u.mgd.last_cqm_event_signal = 0; 2684 2685 /* tell the driver upon association, unless already associated */ 2686 if (sdata->u.mgd.associated && 2687 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2688 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2689 2690 return 0; 2691 } 2692 2693 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2694 struct net_device *dev, 2695 s32 rssi_low, s32 rssi_high) 2696 { 2697 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2698 struct ieee80211_vif *vif = &sdata->vif; 2699 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2700 2701 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2702 return -EOPNOTSUPP; 2703 2704 bss_conf->cqm_rssi_low = rssi_low; 2705 bss_conf->cqm_rssi_high = rssi_high; 2706 bss_conf->cqm_rssi_thold = 0; 2707 bss_conf->cqm_rssi_hyst = 0; 2708 sdata->u.mgd.last_cqm_event_signal = 0; 2709 2710 /* tell the driver upon association, unless already associated */ 2711 if (sdata->u.mgd.associated && 2712 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2713 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2714 2715 return 0; 2716 } 2717 2718 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2719 struct net_device *dev, 2720 const u8 *addr, 2721 const struct cfg80211_bitrate_mask *mask) 2722 { 2723 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2724 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2725 int i, ret; 2726 2727 if (!ieee80211_sdata_running(sdata)) 2728 return -ENETDOWN; 2729 2730 /* 2731 * If active validate the setting and reject it if it doesn't leave 2732 * at least one basic rate usable, since we really have to be able 2733 * to send something, and if we're an AP we have to be able to do 2734 * so at a basic rate so that all clients can receive it. 2735 */ 2736 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2737 sdata->vif.bss_conf.chandef.chan) { 2738 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2739 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2740 2741 if (!(mask->control[band].legacy & basic_rates)) 2742 return -EINVAL; 2743 } 2744 2745 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2746 ret = drv_set_bitrate_mask(local, sdata, mask); 2747 if (ret) 2748 return ret; 2749 } 2750 2751 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2752 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2753 int j; 2754 2755 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2756 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2757 sizeof(mask->control[i].ht_mcs)); 2758 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2759 mask->control[i].vht_mcs, 2760 sizeof(mask->control[i].vht_mcs)); 2761 2762 sdata->rc_has_mcs_mask[i] = false; 2763 sdata->rc_has_vht_mcs_mask[i] = false; 2764 if (!sband) 2765 continue; 2766 2767 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2768 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2769 sdata->rc_has_mcs_mask[i] = true; 2770 break; 2771 } 2772 } 2773 2774 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2775 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2776 sdata->rc_has_vht_mcs_mask[i] = true; 2777 break; 2778 } 2779 } 2780 } 2781 2782 return 0; 2783 } 2784 2785 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2786 struct net_device *dev, 2787 struct cfg80211_chan_def *chandef, 2788 u32 cac_time_ms) 2789 { 2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2791 struct ieee80211_local *local = sdata->local; 2792 int err; 2793 2794 mutex_lock(&local->mtx); 2795 if (!list_empty(&local->roc_list) || local->scanning) { 2796 err = -EBUSY; 2797 goto out_unlock; 2798 } 2799 2800 /* whatever, but channel contexts should not complain about that one */ 2801 sdata->smps_mode = IEEE80211_SMPS_OFF; 2802 sdata->needed_rx_chains = local->rx_chains; 2803 2804 err = ieee80211_vif_use_channel(sdata, chandef, 2805 IEEE80211_CHANCTX_SHARED); 2806 if (err) 2807 goto out_unlock; 2808 2809 ieee80211_queue_delayed_work(&sdata->local->hw, 2810 &sdata->dfs_cac_timer_work, 2811 msecs_to_jiffies(cac_time_ms)); 2812 2813 out_unlock: 2814 mutex_unlock(&local->mtx); 2815 return err; 2816 } 2817 2818 static struct cfg80211_beacon_data * 2819 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2820 { 2821 struct cfg80211_beacon_data *new_beacon; 2822 u8 *pos; 2823 int len; 2824 2825 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2826 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2827 beacon->probe_resp_len; 2828 2829 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2830 if (!new_beacon) 2831 return NULL; 2832 2833 pos = (u8 *)(new_beacon + 1); 2834 if (beacon->head_len) { 2835 new_beacon->head_len = beacon->head_len; 2836 new_beacon->head = pos; 2837 memcpy(pos, beacon->head, beacon->head_len); 2838 pos += beacon->head_len; 2839 } 2840 if (beacon->tail_len) { 2841 new_beacon->tail_len = beacon->tail_len; 2842 new_beacon->tail = pos; 2843 memcpy(pos, beacon->tail, beacon->tail_len); 2844 pos += beacon->tail_len; 2845 } 2846 if (beacon->beacon_ies_len) { 2847 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2848 new_beacon->beacon_ies = pos; 2849 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2850 pos += beacon->beacon_ies_len; 2851 } 2852 if (beacon->proberesp_ies_len) { 2853 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2854 new_beacon->proberesp_ies = pos; 2855 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2856 pos += beacon->proberesp_ies_len; 2857 } 2858 if (beacon->assocresp_ies_len) { 2859 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2860 new_beacon->assocresp_ies = pos; 2861 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2862 pos += beacon->assocresp_ies_len; 2863 } 2864 if (beacon->probe_resp_len) { 2865 new_beacon->probe_resp_len = beacon->probe_resp_len; 2866 beacon->probe_resp = pos; 2867 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2868 pos += beacon->probe_resp_len; 2869 } 2870 2871 return new_beacon; 2872 } 2873 2874 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2875 { 2876 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2877 2878 ieee80211_queue_work(&sdata->local->hw, 2879 &sdata->csa_finalize_work); 2880 } 2881 EXPORT_SYMBOL(ieee80211_csa_finish); 2882 2883 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2884 u32 *changed) 2885 { 2886 int err; 2887 2888 switch (sdata->vif.type) { 2889 case NL80211_IFTYPE_AP: 2890 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2891 NULL); 2892 kfree(sdata->u.ap.next_beacon); 2893 sdata->u.ap.next_beacon = NULL; 2894 2895 if (err < 0) 2896 return err; 2897 *changed |= err; 2898 break; 2899 case NL80211_IFTYPE_ADHOC: 2900 err = ieee80211_ibss_finish_csa(sdata); 2901 if (err < 0) 2902 return err; 2903 *changed |= err; 2904 break; 2905 #ifdef CONFIG_MAC80211_MESH 2906 case NL80211_IFTYPE_MESH_POINT: 2907 err = ieee80211_mesh_finish_csa(sdata); 2908 if (err < 0) 2909 return err; 2910 *changed |= err; 2911 break; 2912 #endif 2913 default: 2914 WARN_ON(1); 2915 return -EINVAL; 2916 } 2917 2918 return 0; 2919 } 2920 2921 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2922 { 2923 struct ieee80211_local *local = sdata->local; 2924 u32 changed = 0; 2925 int err; 2926 2927 sdata_assert_lock(sdata); 2928 lockdep_assert_held(&local->mtx); 2929 lockdep_assert_held(&local->chanctx_mtx); 2930 2931 /* 2932 * using reservation isn't immediate as it may be deferred until later 2933 * with multi-vif. once reservation is complete it will re-schedule the 2934 * work with no reserved_chanctx so verify chandef to check if it 2935 * completed successfully 2936 */ 2937 2938 if (sdata->reserved_chanctx) { 2939 /* 2940 * with multi-vif csa driver may call ieee80211_csa_finish() 2941 * many times while waiting for other interfaces to use their 2942 * reservations 2943 */ 2944 if (sdata->reserved_ready) 2945 return 0; 2946 2947 return ieee80211_vif_use_reserved_context(sdata); 2948 } 2949 2950 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 2951 &sdata->csa_chandef)) 2952 return -EINVAL; 2953 2954 sdata->vif.csa_active = false; 2955 2956 err = ieee80211_set_after_csa_beacon(sdata, &changed); 2957 if (err) 2958 return err; 2959 2960 ieee80211_bss_info_change_notify(sdata, changed); 2961 2962 if (sdata->csa_block_tx) { 2963 ieee80211_wake_vif_queues(local, sdata, 2964 IEEE80211_QUEUE_STOP_REASON_CSA); 2965 sdata->csa_block_tx = false; 2966 } 2967 2968 err = drv_post_channel_switch(sdata); 2969 if (err) 2970 return err; 2971 2972 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 2973 2974 return 0; 2975 } 2976 2977 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2978 { 2979 if (__ieee80211_csa_finalize(sdata)) { 2980 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 2981 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 2982 GFP_KERNEL); 2983 } 2984 } 2985 2986 void ieee80211_csa_finalize_work(struct work_struct *work) 2987 { 2988 struct ieee80211_sub_if_data *sdata = 2989 container_of(work, struct ieee80211_sub_if_data, 2990 csa_finalize_work); 2991 struct ieee80211_local *local = sdata->local; 2992 2993 sdata_lock(sdata); 2994 mutex_lock(&local->mtx); 2995 mutex_lock(&local->chanctx_mtx); 2996 2997 /* AP might have been stopped while waiting for the lock. */ 2998 if (!sdata->vif.csa_active) 2999 goto unlock; 3000 3001 if (!ieee80211_sdata_running(sdata)) 3002 goto unlock; 3003 3004 ieee80211_csa_finalize(sdata); 3005 3006 unlock: 3007 mutex_unlock(&local->chanctx_mtx); 3008 mutex_unlock(&local->mtx); 3009 sdata_unlock(sdata); 3010 } 3011 3012 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3013 struct cfg80211_csa_settings *params, 3014 u32 *changed) 3015 { 3016 struct ieee80211_csa_settings csa = {}; 3017 int err; 3018 3019 switch (sdata->vif.type) { 3020 case NL80211_IFTYPE_AP: 3021 sdata->u.ap.next_beacon = 3022 cfg80211_beacon_dup(¶ms->beacon_after); 3023 if (!sdata->u.ap.next_beacon) 3024 return -ENOMEM; 3025 3026 /* 3027 * With a count of 0, we don't have to wait for any 3028 * TBTT before switching, so complete the CSA 3029 * immediately. In theory, with a count == 1 we 3030 * should delay the switch until just before the next 3031 * TBTT, but that would complicate things so we switch 3032 * immediately too. If we would delay the switch 3033 * until the next TBTT, we would have to set the probe 3034 * response here. 3035 * 3036 * TODO: A channel switch with count <= 1 without 3037 * sending a CSA action frame is kind of useless, 3038 * because the clients won't know we're changing 3039 * channels. The action frame must be implemented 3040 * either here or in the userspace. 3041 */ 3042 if (params->count <= 1) 3043 break; 3044 3045 if ((params->n_counter_offsets_beacon > 3046 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3047 (params->n_counter_offsets_presp > 3048 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3049 return -EINVAL; 3050 3051 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3052 csa.counter_offsets_presp = params->counter_offsets_presp; 3053 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3054 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3055 csa.count = params->count; 3056 3057 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3058 if (err < 0) { 3059 kfree(sdata->u.ap.next_beacon); 3060 return err; 3061 } 3062 *changed |= err; 3063 3064 break; 3065 case NL80211_IFTYPE_ADHOC: 3066 if (!sdata->vif.bss_conf.ibss_joined) 3067 return -EINVAL; 3068 3069 if (params->chandef.width != sdata->u.ibss.chandef.width) 3070 return -EINVAL; 3071 3072 switch (params->chandef.width) { 3073 case NL80211_CHAN_WIDTH_40: 3074 if (cfg80211_get_chandef_type(¶ms->chandef) != 3075 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3076 return -EINVAL; 3077 case NL80211_CHAN_WIDTH_5: 3078 case NL80211_CHAN_WIDTH_10: 3079 case NL80211_CHAN_WIDTH_20_NOHT: 3080 case NL80211_CHAN_WIDTH_20: 3081 break; 3082 default: 3083 return -EINVAL; 3084 } 3085 3086 /* changes into another band are not supported */ 3087 if (sdata->u.ibss.chandef.chan->band != 3088 params->chandef.chan->band) 3089 return -EINVAL; 3090 3091 /* see comments in the NL80211_IFTYPE_AP block */ 3092 if (params->count > 1) { 3093 err = ieee80211_ibss_csa_beacon(sdata, params); 3094 if (err < 0) 3095 return err; 3096 *changed |= err; 3097 } 3098 3099 ieee80211_send_action_csa(sdata, params); 3100 3101 break; 3102 #ifdef CONFIG_MAC80211_MESH 3103 case NL80211_IFTYPE_MESH_POINT: { 3104 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3105 3106 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3107 return -EINVAL; 3108 3109 /* changes into another band are not supported */ 3110 if (sdata->vif.bss_conf.chandef.chan->band != 3111 params->chandef.chan->band) 3112 return -EINVAL; 3113 3114 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3115 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3116 if (!ifmsh->pre_value) 3117 ifmsh->pre_value = 1; 3118 else 3119 ifmsh->pre_value++; 3120 } 3121 3122 /* see comments in the NL80211_IFTYPE_AP block */ 3123 if (params->count > 1) { 3124 err = ieee80211_mesh_csa_beacon(sdata, params); 3125 if (err < 0) { 3126 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3127 return err; 3128 } 3129 *changed |= err; 3130 } 3131 3132 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3133 ieee80211_send_action_csa(sdata, params); 3134 3135 break; 3136 } 3137 #endif 3138 default: 3139 return -EOPNOTSUPP; 3140 } 3141 3142 return 0; 3143 } 3144 3145 static int 3146 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3147 struct cfg80211_csa_settings *params) 3148 { 3149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3150 struct ieee80211_local *local = sdata->local; 3151 struct ieee80211_channel_switch ch_switch; 3152 struct ieee80211_chanctx_conf *conf; 3153 struct ieee80211_chanctx *chanctx; 3154 u32 changed = 0; 3155 int err; 3156 3157 sdata_assert_lock(sdata); 3158 lockdep_assert_held(&local->mtx); 3159 3160 if (!list_empty(&local->roc_list) || local->scanning) 3161 return -EBUSY; 3162 3163 if (sdata->wdev.cac_started) 3164 return -EBUSY; 3165 3166 if (cfg80211_chandef_identical(¶ms->chandef, 3167 &sdata->vif.bss_conf.chandef)) 3168 return -EINVAL; 3169 3170 /* don't allow another channel switch if one is already active. */ 3171 if (sdata->vif.csa_active) 3172 return -EBUSY; 3173 3174 mutex_lock(&local->chanctx_mtx); 3175 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3176 lockdep_is_held(&local->chanctx_mtx)); 3177 if (!conf) { 3178 err = -EBUSY; 3179 goto out; 3180 } 3181 3182 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3183 3184 ch_switch.timestamp = 0; 3185 ch_switch.device_timestamp = 0; 3186 ch_switch.block_tx = params->block_tx; 3187 ch_switch.chandef = params->chandef; 3188 ch_switch.count = params->count; 3189 3190 err = drv_pre_channel_switch(sdata, &ch_switch); 3191 if (err) 3192 goto out; 3193 3194 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3195 chanctx->mode, 3196 params->radar_required); 3197 if (err) 3198 goto out; 3199 3200 /* if reservation is invalid then this will fail */ 3201 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3202 if (err) { 3203 ieee80211_vif_unreserve_chanctx(sdata); 3204 goto out; 3205 } 3206 3207 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3208 if (err) { 3209 ieee80211_vif_unreserve_chanctx(sdata); 3210 goto out; 3211 } 3212 3213 sdata->csa_chandef = params->chandef; 3214 sdata->csa_block_tx = params->block_tx; 3215 sdata->vif.csa_active = true; 3216 3217 if (sdata->csa_block_tx) 3218 ieee80211_stop_vif_queues(local, sdata, 3219 IEEE80211_QUEUE_STOP_REASON_CSA); 3220 3221 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3222 params->count); 3223 3224 if (changed) { 3225 ieee80211_bss_info_change_notify(sdata, changed); 3226 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3227 } else { 3228 /* if the beacon didn't change, we can finalize immediately */ 3229 ieee80211_csa_finalize(sdata); 3230 } 3231 3232 out: 3233 mutex_unlock(&local->chanctx_mtx); 3234 return err; 3235 } 3236 3237 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3238 struct cfg80211_csa_settings *params) 3239 { 3240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3241 struct ieee80211_local *local = sdata->local; 3242 int err; 3243 3244 mutex_lock(&local->mtx); 3245 err = __ieee80211_channel_switch(wiphy, dev, params); 3246 mutex_unlock(&local->mtx); 3247 3248 return err; 3249 } 3250 3251 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3252 { 3253 lockdep_assert_held(&local->mtx); 3254 3255 local->roc_cookie_counter++; 3256 3257 /* wow, you wrapped 64 bits ... more likely a bug */ 3258 if (WARN_ON(local->roc_cookie_counter == 0)) 3259 local->roc_cookie_counter++; 3260 3261 return local->roc_cookie_counter; 3262 } 3263 3264 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3265 u64 *cookie, gfp_t gfp) 3266 { 3267 unsigned long spin_flags; 3268 struct sk_buff *ack_skb; 3269 int id; 3270 3271 ack_skb = skb_copy(skb, gfp); 3272 if (!ack_skb) 3273 return -ENOMEM; 3274 3275 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3276 id = idr_alloc(&local->ack_status_frames, ack_skb, 3277 1, 0x10000, GFP_ATOMIC); 3278 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3279 3280 if (id < 0) { 3281 kfree_skb(ack_skb); 3282 return -ENOMEM; 3283 } 3284 3285 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3286 3287 *cookie = ieee80211_mgmt_tx_cookie(local); 3288 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3289 3290 return 0; 3291 } 3292 3293 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3294 struct wireless_dev *wdev, 3295 u16 frame_type, bool reg) 3296 { 3297 struct ieee80211_local *local = wiphy_priv(wiphy); 3298 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3299 3300 switch (frame_type) { 3301 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3302 if (reg) { 3303 local->probe_req_reg++; 3304 sdata->vif.probe_req_reg++; 3305 } else { 3306 if (local->probe_req_reg) 3307 local->probe_req_reg--; 3308 3309 if (sdata->vif.probe_req_reg) 3310 sdata->vif.probe_req_reg--; 3311 } 3312 3313 if (!local->open_count) 3314 break; 3315 3316 if (sdata->vif.probe_req_reg == 1) 3317 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3318 FIF_PROBE_REQ); 3319 else if (sdata->vif.probe_req_reg == 0) 3320 drv_config_iface_filter(local, sdata, 0, 3321 FIF_PROBE_REQ); 3322 3323 ieee80211_configure_filter(local); 3324 break; 3325 default: 3326 break; 3327 } 3328 } 3329 3330 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3331 { 3332 struct ieee80211_local *local = wiphy_priv(wiphy); 3333 3334 if (local->started) 3335 return -EOPNOTSUPP; 3336 3337 return drv_set_antenna(local, tx_ant, rx_ant); 3338 } 3339 3340 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3341 { 3342 struct ieee80211_local *local = wiphy_priv(wiphy); 3343 3344 return drv_get_antenna(local, tx_ant, rx_ant); 3345 } 3346 3347 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3348 struct net_device *dev, 3349 struct cfg80211_gtk_rekey_data *data) 3350 { 3351 struct ieee80211_local *local = wiphy_priv(wiphy); 3352 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3353 3354 if (!local->ops->set_rekey_data) 3355 return -EOPNOTSUPP; 3356 3357 drv_set_rekey_data(local, sdata, data); 3358 3359 return 0; 3360 } 3361 3362 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3363 const u8 *peer, u64 *cookie) 3364 { 3365 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3366 struct ieee80211_local *local = sdata->local; 3367 struct ieee80211_qos_hdr *nullfunc; 3368 struct sk_buff *skb; 3369 int size = sizeof(*nullfunc); 3370 __le16 fc; 3371 bool qos; 3372 struct ieee80211_tx_info *info; 3373 struct sta_info *sta; 3374 struct ieee80211_chanctx_conf *chanctx_conf; 3375 enum nl80211_band band; 3376 int ret; 3377 3378 /* the lock is needed to assign the cookie later */ 3379 mutex_lock(&local->mtx); 3380 3381 rcu_read_lock(); 3382 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3383 if (WARN_ON(!chanctx_conf)) { 3384 ret = -EINVAL; 3385 goto unlock; 3386 } 3387 band = chanctx_conf->def.chan->band; 3388 sta = sta_info_get_bss(sdata, peer); 3389 if (sta) { 3390 qos = sta->sta.wme; 3391 } else { 3392 ret = -ENOLINK; 3393 goto unlock; 3394 } 3395 3396 if (qos) { 3397 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3398 IEEE80211_STYPE_QOS_NULLFUNC | 3399 IEEE80211_FCTL_FROMDS); 3400 } else { 3401 size -= 2; 3402 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3403 IEEE80211_STYPE_NULLFUNC | 3404 IEEE80211_FCTL_FROMDS); 3405 } 3406 3407 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3408 if (!skb) { 3409 ret = -ENOMEM; 3410 goto unlock; 3411 } 3412 3413 skb->dev = dev; 3414 3415 skb_reserve(skb, local->hw.extra_tx_headroom); 3416 3417 nullfunc = skb_put(skb, size); 3418 nullfunc->frame_control = fc; 3419 nullfunc->duration_id = 0; 3420 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3421 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3422 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3423 nullfunc->seq_ctrl = 0; 3424 3425 info = IEEE80211_SKB_CB(skb); 3426 3427 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3428 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3429 info->band = band; 3430 3431 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3432 skb->priority = 7; 3433 if (qos) 3434 nullfunc->qos_ctrl = cpu_to_le16(7); 3435 3436 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3437 if (ret) { 3438 kfree_skb(skb); 3439 goto unlock; 3440 } 3441 3442 local_bh_disable(); 3443 ieee80211_xmit(sdata, sta, skb); 3444 local_bh_enable(); 3445 3446 ret = 0; 3447 unlock: 3448 rcu_read_unlock(); 3449 mutex_unlock(&local->mtx); 3450 3451 return ret; 3452 } 3453 3454 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3455 struct wireless_dev *wdev, 3456 struct cfg80211_chan_def *chandef) 3457 { 3458 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3459 struct ieee80211_local *local = wiphy_priv(wiphy); 3460 struct ieee80211_chanctx_conf *chanctx_conf; 3461 int ret = -ENODATA; 3462 3463 rcu_read_lock(); 3464 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3465 if (chanctx_conf) { 3466 *chandef = sdata->vif.bss_conf.chandef; 3467 ret = 0; 3468 } else if (local->open_count > 0 && 3469 local->open_count == local->monitors && 3470 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3471 if (local->use_chanctx) 3472 *chandef = local->monitor_chandef; 3473 else 3474 *chandef = local->_oper_chandef; 3475 ret = 0; 3476 } 3477 rcu_read_unlock(); 3478 3479 return ret; 3480 } 3481 3482 #ifdef CONFIG_PM 3483 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3484 { 3485 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3486 } 3487 #endif 3488 3489 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3490 struct net_device *dev, 3491 struct cfg80211_qos_map *qos_map) 3492 { 3493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3494 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3495 3496 if (qos_map) { 3497 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3498 if (!new_qos_map) 3499 return -ENOMEM; 3500 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3501 } else { 3502 /* A NULL qos_map was passed to disable QoS mapping */ 3503 new_qos_map = NULL; 3504 } 3505 3506 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3507 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3508 if (old_qos_map) 3509 kfree_rcu(old_qos_map, rcu_head); 3510 3511 return 0; 3512 } 3513 3514 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3515 struct net_device *dev, 3516 struct cfg80211_chan_def *chandef) 3517 { 3518 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3519 int ret; 3520 u32 changed = 0; 3521 3522 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3523 if (ret == 0) 3524 ieee80211_bss_info_change_notify(sdata, changed); 3525 3526 return ret; 3527 } 3528 3529 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3530 u8 tsid, const u8 *peer, u8 up, 3531 u16 admitted_time) 3532 { 3533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3534 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3535 int ac = ieee802_1d_to_ac[up]; 3536 3537 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3538 return -EOPNOTSUPP; 3539 3540 if (!(sdata->wmm_acm & BIT(up))) 3541 return -EINVAL; 3542 3543 if (ifmgd->tx_tspec[ac].admitted_time) 3544 return -EBUSY; 3545 3546 if (admitted_time) { 3547 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3548 ifmgd->tx_tspec[ac].tsid = tsid; 3549 ifmgd->tx_tspec[ac].up = up; 3550 } 3551 3552 return 0; 3553 } 3554 3555 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3556 u8 tsid, const u8 *peer) 3557 { 3558 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3559 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3560 struct ieee80211_local *local = wiphy_priv(wiphy); 3561 int ac; 3562 3563 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3564 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3565 3566 /* skip unused entries */ 3567 if (!tx_tspec->admitted_time) 3568 continue; 3569 3570 if (tx_tspec->tsid != tsid) 3571 continue; 3572 3573 /* due to this new packets will be reassigned to non-ACM ACs */ 3574 tx_tspec->up = -1; 3575 3576 /* Make sure that all packets have been sent to avoid to 3577 * restore the QoS params on packets that are still on the 3578 * queues. 3579 */ 3580 synchronize_net(); 3581 ieee80211_flush_queues(local, sdata, false); 3582 3583 /* restore the normal QoS parameters 3584 * (unconditionally to avoid races) 3585 */ 3586 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3587 tx_tspec->downgraded = false; 3588 ieee80211_sta_handle_tspec_ac_params(sdata); 3589 3590 /* finally clear all the data */ 3591 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3592 3593 return 0; 3594 } 3595 3596 return -ENOENT; 3597 } 3598 3599 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3600 u8 inst_id, 3601 enum nl80211_nan_func_term_reason reason, 3602 gfp_t gfp) 3603 { 3604 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3605 struct cfg80211_nan_func *func; 3606 u64 cookie; 3607 3608 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3609 return; 3610 3611 spin_lock_bh(&sdata->u.nan.func_lock); 3612 3613 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3614 if (WARN_ON(!func)) { 3615 spin_unlock_bh(&sdata->u.nan.func_lock); 3616 return; 3617 } 3618 3619 cookie = func->cookie; 3620 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3621 3622 spin_unlock_bh(&sdata->u.nan.func_lock); 3623 3624 cfg80211_free_nan_func(func); 3625 3626 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3627 reason, cookie, gfp); 3628 } 3629 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3630 3631 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3632 struct cfg80211_nan_match_params *match, 3633 gfp_t gfp) 3634 { 3635 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3636 struct cfg80211_nan_func *func; 3637 3638 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3639 return; 3640 3641 spin_lock_bh(&sdata->u.nan.func_lock); 3642 3643 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3644 if (WARN_ON(!func)) { 3645 spin_unlock_bh(&sdata->u.nan.func_lock); 3646 return; 3647 } 3648 match->cookie = func->cookie; 3649 3650 spin_unlock_bh(&sdata->u.nan.func_lock); 3651 3652 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3653 } 3654 EXPORT_SYMBOL(ieee80211_nan_func_match); 3655 3656 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3657 struct net_device *dev, 3658 const bool enabled) 3659 { 3660 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3661 3662 sdata->u.ap.multicast_to_unicast = enabled; 3663 3664 return 0; 3665 } 3666 3667 const struct cfg80211_ops mac80211_config_ops = { 3668 .add_virtual_intf = ieee80211_add_iface, 3669 .del_virtual_intf = ieee80211_del_iface, 3670 .change_virtual_intf = ieee80211_change_iface, 3671 .start_p2p_device = ieee80211_start_p2p_device, 3672 .stop_p2p_device = ieee80211_stop_p2p_device, 3673 .add_key = ieee80211_add_key, 3674 .del_key = ieee80211_del_key, 3675 .get_key = ieee80211_get_key, 3676 .set_default_key = ieee80211_config_default_key, 3677 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3678 .start_ap = ieee80211_start_ap, 3679 .change_beacon = ieee80211_change_beacon, 3680 .stop_ap = ieee80211_stop_ap, 3681 .add_station = ieee80211_add_station, 3682 .del_station = ieee80211_del_station, 3683 .change_station = ieee80211_change_station, 3684 .get_station = ieee80211_get_station, 3685 .dump_station = ieee80211_dump_station, 3686 .dump_survey = ieee80211_dump_survey, 3687 #ifdef CONFIG_MAC80211_MESH 3688 .add_mpath = ieee80211_add_mpath, 3689 .del_mpath = ieee80211_del_mpath, 3690 .change_mpath = ieee80211_change_mpath, 3691 .get_mpath = ieee80211_get_mpath, 3692 .dump_mpath = ieee80211_dump_mpath, 3693 .get_mpp = ieee80211_get_mpp, 3694 .dump_mpp = ieee80211_dump_mpp, 3695 .update_mesh_config = ieee80211_update_mesh_config, 3696 .get_mesh_config = ieee80211_get_mesh_config, 3697 .join_mesh = ieee80211_join_mesh, 3698 .leave_mesh = ieee80211_leave_mesh, 3699 #endif 3700 .join_ocb = ieee80211_join_ocb, 3701 .leave_ocb = ieee80211_leave_ocb, 3702 .change_bss = ieee80211_change_bss, 3703 .set_txq_params = ieee80211_set_txq_params, 3704 .set_monitor_channel = ieee80211_set_monitor_channel, 3705 .suspend = ieee80211_suspend, 3706 .resume = ieee80211_resume, 3707 .scan = ieee80211_scan, 3708 .abort_scan = ieee80211_abort_scan, 3709 .sched_scan_start = ieee80211_sched_scan_start, 3710 .sched_scan_stop = ieee80211_sched_scan_stop, 3711 .auth = ieee80211_auth, 3712 .assoc = ieee80211_assoc, 3713 .deauth = ieee80211_deauth, 3714 .disassoc = ieee80211_disassoc, 3715 .join_ibss = ieee80211_join_ibss, 3716 .leave_ibss = ieee80211_leave_ibss, 3717 .set_mcast_rate = ieee80211_set_mcast_rate, 3718 .set_wiphy_params = ieee80211_set_wiphy_params, 3719 .set_tx_power = ieee80211_set_tx_power, 3720 .get_tx_power = ieee80211_get_tx_power, 3721 .set_wds_peer = ieee80211_set_wds_peer, 3722 .rfkill_poll = ieee80211_rfkill_poll, 3723 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3724 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3725 .set_power_mgmt = ieee80211_set_power_mgmt, 3726 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3727 .remain_on_channel = ieee80211_remain_on_channel, 3728 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3729 .mgmt_tx = ieee80211_mgmt_tx, 3730 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3731 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3732 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3733 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3734 .set_antenna = ieee80211_set_antenna, 3735 .get_antenna = ieee80211_get_antenna, 3736 .set_rekey_data = ieee80211_set_rekey_data, 3737 .tdls_oper = ieee80211_tdls_oper, 3738 .tdls_mgmt = ieee80211_tdls_mgmt, 3739 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3740 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3741 .probe_client = ieee80211_probe_client, 3742 .set_noack_map = ieee80211_set_noack_map, 3743 #ifdef CONFIG_PM 3744 .set_wakeup = ieee80211_set_wakeup, 3745 #endif 3746 .get_channel = ieee80211_cfg_get_channel, 3747 .start_radar_detection = ieee80211_start_radar_detection, 3748 .channel_switch = ieee80211_channel_switch, 3749 .set_qos_map = ieee80211_set_qos_map, 3750 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3751 .add_tx_ts = ieee80211_add_tx_ts, 3752 .del_tx_ts = ieee80211_del_tx_ts, 3753 .start_nan = ieee80211_start_nan, 3754 .stop_nan = ieee80211_stop_nan, 3755 .nan_change_conf = ieee80211_nan_change_conf, 3756 .add_nan_func = ieee80211_add_nan_func, 3757 .del_nan_func = ieee80211_del_nan_func, 3758 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3759 }; 3760