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 /* fall through */ 577 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 578 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 579 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 580 offsetof(typeof(kseq), aes_gmac)); 581 /* fall through */ 582 case WLAN_CIPHER_SUITE_GCMP: 583 case WLAN_CIPHER_SUITE_GCMP_256: 584 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 585 offsetof(typeof(kseq), gcmp)); 586 587 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 588 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 589 drv_get_key_seq(sdata->local, key, &kseq); 590 memcpy(seq, kseq.ccmp.pn, 6); 591 } else { 592 pn64 = atomic64_read(&key->conf.tx_pn); 593 seq[0] = pn64; 594 seq[1] = pn64 >> 8; 595 seq[2] = pn64 >> 16; 596 seq[3] = pn64 >> 24; 597 seq[4] = pn64 >> 32; 598 seq[5] = pn64 >> 40; 599 } 600 params.seq = seq; 601 params.seq_len = 6; 602 break; 603 default: 604 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 605 break; 606 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 607 break; 608 drv_get_key_seq(sdata->local, key, &kseq); 609 params.seq = kseq.hw.seq; 610 params.seq_len = kseq.hw.seq_len; 611 break; 612 } 613 614 params.key = key->conf.key; 615 params.key_len = key->conf.keylen; 616 617 callback(cookie, ¶ms); 618 err = 0; 619 620 out: 621 rcu_read_unlock(); 622 return err; 623 } 624 625 static int ieee80211_config_default_key(struct wiphy *wiphy, 626 struct net_device *dev, 627 u8 key_idx, bool uni, 628 bool multi) 629 { 630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 631 632 ieee80211_set_default_key(sdata, key_idx, uni, multi); 633 634 return 0; 635 } 636 637 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 638 struct net_device *dev, 639 u8 key_idx) 640 { 641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 642 643 ieee80211_set_default_mgmt_key(sdata, key_idx); 644 645 return 0; 646 } 647 648 void sta_set_rate_info_tx(struct sta_info *sta, 649 const struct ieee80211_tx_rate *rate, 650 struct rate_info *rinfo) 651 { 652 rinfo->flags = 0; 653 if (rate->flags & IEEE80211_TX_RC_MCS) { 654 rinfo->flags |= RATE_INFO_FLAGS_MCS; 655 rinfo->mcs = rate->idx; 656 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 657 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 658 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 659 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 660 } else { 661 struct ieee80211_supported_band *sband; 662 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 663 u16 brate; 664 665 sband = ieee80211_get_sband(sta->sdata); 666 if (sband) { 667 brate = sband->bitrates[rate->idx].bitrate; 668 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 669 } 670 } 671 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 672 rinfo->bw = RATE_INFO_BW_40; 673 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 674 rinfo->bw = RATE_INFO_BW_80; 675 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 676 rinfo->bw = RATE_INFO_BW_160; 677 else 678 rinfo->bw = RATE_INFO_BW_20; 679 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 680 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 681 } 682 683 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 684 int idx, u8 *mac, struct station_info *sinfo) 685 { 686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 687 struct ieee80211_local *local = sdata->local; 688 struct sta_info *sta; 689 int ret = -ENOENT; 690 691 mutex_lock(&local->sta_mtx); 692 693 sta = sta_info_get_by_idx(sdata, idx); 694 if (sta) { 695 ret = 0; 696 memcpy(mac, sta->sta.addr, ETH_ALEN); 697 sta_set_sinfo(sta, sinfo); 698 } 699 700 mutex_unlock(&local->sta_mtx); 701 702 return ret; 703 } 704 705 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 706 int idx, struct survey_info *survey) 707 { 708 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 709 710 return drv_get_survey(local, idx, survey); 711 } 712 713 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 714 const u8 *mac, struct station_info *sinfo) 715 { 716 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 717 struct ieee80211_local *local = sdata->local; 718 struct sta_info *sta; 719 int ret = -ENOENT; 720 721 mutex_lock(&local->sta_mtx); 722 723 sta = sta_info_get_bss(sdata, mac); 724 if (sta) { 725 ret = 0; 726 sta_set_sinfo(sta, sinfo); 727 } 728 729 mutex_unlock(&local->sta_mtx); 730 731 return ret; 732 } 733 734 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 735 struct cfg80211_chan_def *chandef) 736 { 737 struct ieee80211_local *local = wiphy_priv(wiphy); 738 struct ieee80211_sub_if_data *sdata; 739 int ret = 0; 740 741 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 742 return 0; 743 744 mutex_lock(&local->mtx); 745 if (local->use_chanctx) { 746 sdata = rtnl_dereference(local->monitor_sdata); 747 if (sdata) { 748 ieee80211_vif_release_channel(sdata); 749 ret = ieee80211_vif_use_channel(sdata, chandef, 750 IEEE80211_CHANCTX_EXCLUSIVE); 751 } 752 } else if (local->open_count == local->monitors) { 753 local->_oper_chandef = *chandef; 754 ieee80211_hw_config(local, 0); 755 } 756 757 if (ret == 0) 758 local->monitor_chandef = *chandef; 759 mutex_unlock(&local->mtx); 760 761 return ret; 762 } 763 764 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 765 const u8 *resp, size_t resp_len, 766 const struct ieee80211_csa_settings *csa) 767 { 768 struct probe_resp *new, *old; 769 770 if (!resp || !resp_len) 771 return 1; 772 773 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 774 775 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 776 if (!new) 777 return -ENOMEM; 778 779 new->len = resp_len; 780 memcpy(new->data, resp, resp_len); 781 782 if (csa) 783 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 784 csa->n_counter_offsets_presp * 785 sizeof(new->csa_counter_offsets[0])); 786 787 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 788 if (old) 789 kfree_rcu(old, rcu_head); 790 791 return 0; 792 } 793 794 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 795 struct cfg80211_beacon_data *params, 796 const struct ieee80211_csa_settings *csa) 797 { 798 struct beacon_data *new, *old; 799 int new_head_len, new_tail_len; 800 int size, err; 801 u32 changed = BSS_CHANGED_BEACON; 802 803 old = sdata_dereference(sdata->u.ap.beacon, sdata); 804 805 806 /* Need to have a beacon head if we don't have one yet */ 807 if (!params->head && !old) 808 return -EINVAL; 809 810 /* new or old head? */ 811 if (params->head) 812 new_head_len = params->head_len; 813 else 814 new_head_len = old->head_len; 815 816 /* new or old tail? */ 817 if (params->tail || !old) 818 /* params->tail_len will be zero for !params->tail */ 819 new_tail_len = params->tail_len; 820 else 821 new_tail_len = old->tail_len; 822 823 size = sizeof(*new) + new_head_len + new_tail_len; 824 825 new = kzalloc(size, GFP_KERNEL); 826 if (!new) 827 return -ENOMEM; 828 829 /* start filling the new info now */ 830 831 /* 832 * pointers go into the block we allocated, 833 * memory is | beacon_data | head | tail | 834 */ 835 new->head = ((u8 *) new) + sizeof(*new); 836 new->tail = new->head + new_head_len; 837 new->head_len = new_head_len; 838 new->tail_len = new_tail_len; 839 840 if (csa) { 841 new->csa_current_counter = csa->count; 842 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 843 csa->n_counter_offsets_beacon * 844 sizeof(new->csa_counter_offsets[0])); 845 } 846 847 /* copy in head */ 848 if (params->head) 849 memcpy(new->head, params->head, new_head_len); 850 else 851 memcpy(new->head, old->head, new_head_len); 852 853 /* copy in optional tail */ 854 if (params->tail) 855 memcpy(new->tail, params->tail, new_tail_len); 856 else 857 if (old) 858 memcpy(new->tail, old->tail, new_tail_len); 859 860 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 861 params->probe_resp_len, csa); 862 if (err < 0) 863 return err; 864 if (err == 0) 865 changed |= BSS_CHANGED_AP_PROBE_RESP; 866 867 rcu_assign_pointer(sdata->u.ap.beacon, new); 868 869 if (old) 870 kfree_rcu(old, rcu_head); 871 872 return changed; 873 } 874 875 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 876 struct cfg80211_ap_settings *params) 877 { 878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 879 struct ieee80211_local *local = sdata->local; 880 struct beacon_data *old; 881 struct ieee80211_sub_if_data *vlan; 882 u32 changed = BSS_CHANGED_BEACON_INT | 883 BSS_CHANGED_BEACON_ENABLED | 884 BSS_CHANGED_BEACON | 885 BSS_CHANGED_SSID | 886 BSS_CHANGED_P2P_PS | 887 BSS_CHANGED_TXPOWER; 888 int err; 889 890 old = sdata_dereference(sdata->u.ap.beacon, sdata); 891 if (old) 892 return -EALREADY; 893 894 switch (params->smps_mode) { 895 case NL80211_SMPS_OFF: 896 sdata->smps_mode = IEEE80211_SMPS_OFF; 897 break; 898 case NL80211_SMPS_STATIC: 899 sdata->smps_mode = IEEE80211_SMPS_STATIC; 900 break; 901 case NL80211_SMPS_DYNAMIC: 902 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 903 break; 904 default: 905 return -EINVAL; 906 } 907 sdata->u.ap.req_smps = sdata->smps_mode; 908 909 sdata->needed_rx_chains = sdata->local->rx_chains; 910 911 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 912 913 mutex_lock(&local->mtx); 914 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 915 IEEE80211_CHANCTX_SHARED); 916 if (!err) 917 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 918 mutex_unlock(&local->mtx); 919 if (err) 920 return err; 921 922 /* 923 * Apply control port protocol, this allows us to 924 * not encrypt dynamic WEP control frames. 925 */ 926 sdata->control_port_protocol = params->crypto.control_port_ethertype; 927 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 928 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 929 ¶ms->crypto, 930 sdata->vif.type); 931 932 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 933 vlan->control_port_protocol = 934 params->crypto.control_port_ethertype; 935 vlan->control_port_no_encrypt = 936 params->crypto.control_port_no_encrypt; 937 vlan->encrypt_headroom = 938 ieee80211_cs_headroom(sdata->local, 939 ¶ms->crypto, 940 vlan->vif.type); 941 } 942 943 sdata->vif.bss_conf.dtim_period = params->dtim_period; 944 sdata->vif.bss_conf.enable_beacon = true; 945 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 946 947 sdata->vif.bss_conf.ssid_len = params->ssid_len; 948 if (params->ssid_len) 949 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 950 params->ssid_len); 951 sdata->vif.bss_conf.hidden_ssid = 952 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 953 954 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 955 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 956 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 957 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 958 if (params->p2p_opp_ps) 959 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 960 IEEE80211_P2P_OPPPS_ENABLE_BIT; 961 962 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 963 if (err < 0) { 964 ieee80211_vif_release_channel(sdata); 965 return err; 966 } 967 changed |= err; 968 969 err = drv_start_ap(sdata->local, sdata); 970 if (err) { 971 old = sdata_dereference(sdata->u.ap.beacon, sdata); 972 973 if (old) 974 kfree_rcu(old, rcu_head); 975 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 976 ieee80211_vif_release_channel(sdata); 977 return err; 978 } 979 980 ieee80211_recalc_dtim(local, sdata); 981 ieee80211_bss_info_change_notify(sdata, changed); 982 983 netif_carrier_on(dev); 984 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 985 netif_carrier_on(vlan->dev); 986 987 return 0; 988 } 989 990 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 991 struct cfg80211_beacon_data *params) 992 { 993 struct ieee80211_sub_if_data *sdata; 994 struct beacon_data *old; 995 int err; 996 997 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 998 sdata_assert_lock(sdata); 999 1000 /* don't allow changing the beacon while CSA is in place - offset 1001 * of channel switch counter may change 1002 */ 1003 if (sdata->vif.csa_active) 1004 return -EBUSY; 1005 1006 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1007 if (!old) 1008 return -ENOENT; 1009 1010 err = ieee80211_assign_beacon(sdata, params, NULL); 1011 if (err < 0) 1012 return err; 1013 ieee80211_bss_info_change_notify(sdata, err); 1014 return 0; 1015 } 1016 1017 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1018 { 1019 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1020 struct ieee80211_sub_if_data *vlan; 1021 struct ieee80211_local *local = sdata->local; 1022 struct beacon_data *old_beacon; 1023 struct probe_resp *old_probe_resp; 1024 struct cfg80211_chan_def chandef; 1025 1026 sdata_assert_lock(sdata); 1027 1028 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1029 if (!old_beacon) 1030 return -ENOENT; 1031 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1032 1033 /* abort any running channel switch */ 1034 mutex_lock(&local->mtx); 1035 sdata->vif.csa_active = false; 1036 if (sdata->csa_block_tx) { 1037 ieee80211_wake_vif_queues(local, sdata, 1038 IEEE80211_QUEUE_STOP_REASON_CSA); 1039 sdata->csa_block_tx = false; 1040 } 1041 1042 mutex_unlock(&local->mtx); 1043 1044 kfree(sdata->u.ap.next_beacon); 1045 sdata->u.ap.next_beacon = NULL; 1046 1047 /* turn off carrier for this interface and dependent VLANs */ 1048 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1049 netif_carrier_off(vlan->dev); 1050 netif_carrier_off(dev); 1051 1052 /* remove beacon and probe response */ 1053 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1054 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1055 kfree_rcu(old_beacon, rcu_head); 1056 if (old_probe_resp) 1057 kfree_rcu(old_probe_resp, rcu_head); 1058 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1059 1060 __sta_info_flush(sdata, true); 1061 ieee80211_free_keys(sdata, true); 1062 1063 sdata->vif.bss_conf.enable_beacon = false; 1064 sdata->vif.bss_conf.ssid_len = 0; 1065 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1066 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1067 1068 if (sdata->wdev.cac_started) { 1069 chandef = sdata->vif.bss_conf.chandef; 1070 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1071 cfg80211_cac_event(sdata->dev, &chandef, 1072 NL80211_RADAR_CAC_ABORTED, 1073 GFP_KERNEL); 1074 } 1075 1076 drv_stop_ap(sdata->local, sdata); 1077 1078 /* free all potentially still buffered bcast frames */ 1079 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1080 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1081 1082 mutex_lock(&local->mtx); 1083 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1084 ieee80211_vif_release_channel(sdata); 1085 mutex_unlock(&local->mtx); 1086 1087 return 0; 1088 } 1089 1090 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1091 struct iapp_layer2_update { 1092 u8 da[ETH_ALEN]; /* broadcast */ 1093 u8 sa[ETH_ALEN]; /* STA addr */ 1094 __be16 len; /* 6 */ 1095 u8 dsap; /* 0 */ 1096 u8 ssap; /* 0 */ 1097 u8 control; 1098 u8 xid_info[3]; 1099 } __packed; 1100 1101 static void ieee80211_send_layer2_update(struct sta_info *sta) 1102 { 1103 struct iapp_layer2_update *msg; 1104 struct sk_buff *skb; 1105 1106 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1107 * bridge devices */ 1108 1109 skb = dev_alloc_skb(sizeof(*msg)); 1110 if (!skb) 1111 return; 1112 msg = skb_put(skb, sizeof(*msg)); 1113 1114 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1115 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1116 1117 eth_broadcast_addr(msg->da); 1118 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1119 msg->len = htons(6); 1120 msg->dsap = 0; 1121 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1122 msg->control = 0xaf; /* XID response lsb.1111F101. 1123 * F=0 (no poll command; unsolicited frame) */ 1124 msg->xid_info[0] = 0x81; /* XID format identifier */ 1125 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1126 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1127 1128 skb->dev = sta->sdata->dev; 1129 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1130 memset(skb->cb, 0, sizeof(skb->cb)); 1131 netif_rx_ni(skb); 1132 } 1133 1134 static int sta_apply_auth_flags(struct ieee80211_local *local, 1135 struct sta_info *sta, 1136 u32 mask, u32 set) 1137 { 1138 int ret; 1139 1140 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1141 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1142 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1143 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1144 if (ret) 1145 return ret; 1146 } 1147 1148 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1149 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1150 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1151 /* 1152 * When peer becomes associated, init rate control as 1153 * well. Some drivers require rate control initialized 1154 * before drv_sta_state() is called. 1155 */ 1156 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1157 rate_control_rate_init(sta); 1158 1159 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1160 if (ret) 1161 return ret; 1162 } 1163 1164 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1165 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1166 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1167 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1168 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1169 else 1170 ret = 0; 1171 if (ret) 1172 return ret; 1173 } 1174 1175 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1176 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1177 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1178 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1179 if (ret) 1180 return ret; 1181 } 1182 1183 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1184 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1185 test_sta_flag(sta, WLAN_STA_AUTH)) { 1186 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1187 if (ret) 1188 return ret; 1189 } 1190 1191 return 0; 1192 } 1193 1194 static void sta_apply_mesh_params(struct ieee80211_local *local, 1195 struct sta_info *sta, 1196 struct station_parameters *params) 1197 { 1198 #ifdef CONFIG_MAC80211_MESH 1199 struct ieee80211_sub_if_data *sdata = sta->sdata; 1200 u32 changed = 0; 1201 1202 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1203 switch (params->plink_state) { 1204 case NL80211_PLINK_ESTAB: 1205 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1206 changed = mesh_plink_inc_estab_count(sdata); 1207 sta->mesh->plink_state = params->plink_state; 1208 sta->mesh->aid = params->peer_aid; 1209 1210 ieee80211_mps_sta_status_update(sta); 1211 changed |= ieee80211_mps_set_sta_local_pm(sta, 1212 sdata->u.mesh.mshcfg.power_mode); 1213 break; 1214 case NL80211_PLINK_LISTEN: 1215 case NL80211_PLINK_BLOCKED: 1216 case NL80211_PLINK_OPN_SNT: 1217 case NL80211_PLINK_OPN_RCVD: 1218 case NL80211_PLINK_CNF_RCVD: 1219 case NL80211_PLINK_HOLDING: 1220 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1221 changed = mesh_plink_dec_estab_count(sdata); 1222 sta->mesh->plink_state = params->plink_state; 1223 1224 ieee80211_mps_sta_status_update(sta); 1225 changed |= ieee80211_mps_set_sta_local_pm(sta, 1226 NL80211_MESH_POWER_UNKNOWN); 1227 break; 1228 default: 1229 /* nothing */ 1230 break; 1231 } 1232 } 1233 1234 switch (params->plink_action) { 1235 case NL80211_PLINK_ACTION_NO_ACTION: 1236 /* nothing */ 1237 break; 1238 case NL80211_PLINK_ACTION_OPEN: 1239 changed |= mesh_plink_open(sta); 1240 break; 1241 case NL80211_PLINK_ACTION_BLOCK: 1242 changed |= mesh_plink_block(sta); 1243 break; 1244 } 1245 1246 if (params->local_pm) 1247 changed |= ieee80211_mps_set_sta_local_pm(sta, 1248 params->local_pm); 1249 1250 ieee80211_mbss_info_change_notify(sdata, changed); 1251 #endif 1252 } 1253 1254 static int sta_apply_parameters(struct ieee80211_local *local, 1255 struct sta_info *sta, 1256 struct station_parameters *params) 1257 { 1258 int ret = 0; 1259 struct ieee80211_supported_band *sband; 1260 struct ieee80211_sub_if_data *sdata = sta->sdata; 1261 u32 mask, set; 1262 1263 sband = ieee80211_get_sband(sdata); 1264 if (!sband) 1265 return -EINVAL; 1266 1267 mask = params->sta_flags_mask; 1268 set = params->sta_flags_set; 1269 1270 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1271 /* 1272 * In mesh mode, ASSOCIATED isn't part of the nl80211 1273 * API but must follow AUTHENTICATED for driver state. 1274 */ 1275 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1276 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1277 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1278 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1279 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1280 /* 1281 * TDLS -- everything follows authorized, but 1282 * only becoming authorized is possible, not 1283 * going back 1284 */ 1285 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1286 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1287 BIT(NL80211_STA_FLAG_ASSOCIATED); 1288 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1289 BIT(NL80211_STA_FLAG_ASSOCIATED); 1290 } 1291 } 1292 1293 if (mask & BIT(NL80211_STA_FLAG_WME) && 1294 local->hw.queues >= IEEE80211_NUM_ACS) 1295 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1296 1297 /* auth flags will be set later for TDLS, 1298 * and for unassociated stations that move to assocaited */ 1299 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1300 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1301 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1302 ret = sta_apply_auth_flags(local, sta, mask, set); 1303 if (ret) 1304 return ret; 1305 } 1306 1307 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1308 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1309 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1310 else 1311 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1312 } 1313 1314 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1315 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1316 if (set & BIT(NL80211_STA_FLAG_MFP)) 1317 set_sta_flag(sta, WLAN_STA_MFP); 1318 else 1319 clear_sta_flag(sta, WLAN_STA_MFP); 1320 } 1321 1322 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1323 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1324 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1325 else 1326 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1327 } 1328 1329 /* mark TDLS channel switch support, if the AP allows it */ 1330 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1331 !sdata->u.mgd.tdls_chan_switch_prohibited && 1332 params->ext_capab_len >= 4 && 1333 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1334 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1335 1336 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1337 !sdata->u.mgd.tdls_wider_bw_prohibited && 1338 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1339 params->ext_capab_len >= 8 && 1340 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1341 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1342 1343 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1344 sta->sta.uapsd_queues = params->uapsd_queues; 1345 sta->sta.max_sp = params->max_sp; 1346 } 1347 1348 /* The sender might not have sent the last bit, consider it to be 0 */ 1349 if (params->ext_capab_len >= 8) { 1350 u8 val = (params->ext_capab[7] & 1351 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1352 1353 /* we did get all the bits, take the MSB as well */ 1354 if (params->ext_capab_len >= 9) { 1355 u8 val_msb = params->ext_capab[8] & 1356 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1357 val_msb <<= 1; 1358 val |= val_msb; 1359 } 1360 1361 switch (val) { 1362 case 1: 1363 sta->sta.max_amsdu_subframes = 32; 1364 break; 1365 case 2: 1366 sta->sta.max_amsdu_subframes = 16; 1367 break; 1368 case 3: 1369 sta->sta.max_amsdu_subframes = 8; 1370 break; 1371 default: 1372 sta->sta.max_amsdu_subframes = 0; 1373 } 1374 } 1375 1376 /* 1377 * cfg80211 validates this (1-2007) and allows setting the AID 1378 * only when creating a new station entry 1379 */ 1380 if (params->aid) 1381 sta->sta.aid = params->aid; 1382 1383 /* 1384 * Some of the following updates would be racy if called on an 1385 * existing station, via ieee80211_change_station(). However, 1386 * all such changes are rejected by cfg80211 except for updates 1387 * changing the supported rates on an existing but not yet used 1388 * TDLS peer. 1389 */ 1390 1391 if (params->listen_interval >= 0) 1392 sta->listen_interval = params->listen_interval; 1393 1394 if (params->supported_rates) { 1395 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1396 sband, params->supported_rates, 1397 params->supported_rates_len, 1398 &sta->sta.supp_rates[sband->band]); 1399 } 1400 1401 if (params->ht_capa) 1402 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1403 params->ht_capa, sta); 1404 1405 /* VHT can override some HT caps such as the A-MSDU max length */ 1406 if (params->vht_capa) 1407 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1408 params->vht_capa, sta); 1409 1410 if (params->opmode_notif_used) { 1411 /* returned value is only needed for rc update, but the 1412 * rc isn't initialized here yet, so ignore it 1413 */ 1414 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1415 sband->band); 1416 } 1417 1418 if (params->support_p2p_ps >= 0) 1419 sta->sta.support_p2p_ps = params->support_p2p_ps; 1420 1421 if (ieee80211_vif_is_mesh(&sdata->vif)) 1422 sta_apply_mesh_params(local, sta, params); 1423 1424 /* set the STA state after all sta info from usermode has been set */ 1425 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1426 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1427 ret = sta_apply_auth_flags(local, sta, mask, set); 1428 if (ret) 1429 return ret; 1430 } 1431 1432 return 0; 1433 } 1434 1435 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1436 const u8 *mac, 1437 struct station_parameters *params) 1438 { 1439 struct ieee80211_local *local = wiphy_priv(wiphy); 1440 struct sta_info *sta; 1441 struct ieee80211_sub_if_data *sdata; 1442 int err; 1443 int layer2_update; 1444 1445 if (params->vlan) { 1446 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1447 1448 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1449 sdata->vif.type != NL80211_IFTYPE_AP) 1450 return -EINVAL; 1451 } else 1452 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1453 1454 if (ether_addr_equal(mac, sdata->vif.addr)) 1455 return -EINVAL; 1456 1457 if (is_multicast_ether_addr(mac)) 1458 return -EINVAL; 1459 1460 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1461 if (!sta) 1462 return -ENOMEM; 1463 1464 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1465 sta->sta.tdls = true; 1466 1467 err = sta_apply_parameters(local, sta, params); 1468 if (err) { 1469 sta_info_free(local, sta); 1470 return err; 1471 } 1472 1473 /* 1474 * for TDLS and for unassociated station, rate control should be 1475 * initialized only when rates are known and station is marked 1476 * authorized/associated 1477 */ 1478 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1479 test_sta_flag(sta, WLAN_STA_ASSOC)) 1480 rate_control_rate_init(sta); 1481 1482 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1483 sdata->vif.type == NL80211_IFTYPE_AP; 1484 1485 err = sta_info_insert_rcu(sta); 1486 if (err) { 1487 rcu_read_unlock(); 1488 return err; 1489 } 1490 1491 if (layer2_update) 1492 ieee80211_send_layer2_update(sta); 1493 1494 rcu_read_unlock(); 1495 1496 return 0; 1497 } 1498 1499 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1500 struct station_del_parameters *params) 1501 { 1502 struct ieee80211_sub_if_data *sdata; 1503 1504 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1505 1506 if (params->mac) 1507 return sta_info_destroy_addr_bss(sdata, params->mac); 1508 1509 sta_info_flush(sdata); 1510 return 0; 1511 } 1512 1513 static int ieee80211_change_station(struct wiphy *wiphy, 1514 struct net_device *dev, const u8 *mac, 1515 struct station_parameters *params) 1516 { 1517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1518 struct ieee80211_local *local = wiphy_priv(wiphy); 1519 struct sta_info *sta; 1520 struct ieee80211_sub_if_data *vlansdata; 1521 enum cfg80211_station_type statype; 1522 int err; 1523 1524 mutex_lock(&local->sta_mtx); 1525 1526 sta = sta_info_get_bss(sdata, mac); 1527 if (!sta) { 1528 err = -ENOENT; 1529 goto out_err; 1530 } 1531 1532 switch (sdata->vif.type) { 1533 case NL80211_IFTYPE_MESH_POINT: 1534 if (sdata->u.mesh.user_mpm) 1535 statype = CFG80211_STA_MESH_PEER_USER; 1536 else 1537 statype = CFG80211_STA_MESH_PEER_KERNEL; 1538 break; 1539 case NL80211_IFTYPE_ADHOC: 1540 statype = CFG80211_STA_IBSS; 1541 break; 1542 case NL80211_IFTYPE_STATION: 1543 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1544 statype = CFG80211_STA_AP_STA; 1545 break; 1546 } 1547 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1548 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1549 else 1550 statype = CFG80211_STA_TDLS_PEER_SETUP; 1551 break; 1552 case NL80211_IFTYPE_AP: 1553 case NL80211_IFTYPE_AP_VLAN: 1554 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1555 statype = CFG80211_STA_AP_CLIENT; 1556 else 1557 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1558 break; 1559 default: 1560 err = -EOPNOTSUPP; 1561 goto out_err; 1562 } 1563 1564 err = cfg80211_check_station_change(wiphy, params, statype); 1565 if (err) 1566 goto out_err; 1567 1568 if (params->vlan && params->vlan != sta->sdata->dev) { 1569 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1570 1571 if (params->vlan->ieee80211_ptr->use_4addr) { 1572 if (vlansdata->u.vlan.sta) { 1573 err = -EBUSY; 1574 goto out_err; 1575 } 1576 1577 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1578 __ieee80211_check_fast_rx_iface(vlansdata); 1579 } 1580 1581 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1582 sta->sdata->u.vlan.sta) 1583 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1584 1585 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1586 ieee80211_vif_dec_num_mcast(sta->sdata); 1587 1588 sta->sdata = vlansdata; 1589 ieee80211_check_fast_xmit(sta); 1590 1591 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1592 ieee80211_vif_inc_num_mcast(sta->sdata); 1593 1594 ieee80211_send_layer2_update(sta); 1595 } 1596 1597 err = sta_apply_parameters(local, sta, params); 1598 if (err) 1599 goto out_err; 1600 1601 mutex_unlock(&local->sta_mtx); 1602 1603 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1604 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1605 sta->known_smps_mode != sta->sdata->bss->req_smps && 1606 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1607 sta_info_tx_streams(sta) != 1) { 1608 ht_dbg(sta->sdata, 1609 "%pM just authorized and MIMO capable - update SMPS\n", 1610 sta->sta.addr); 1611 ieee80211_send_smps_action(sta->sdata, 1612 sta->sdata->bss->req_smps, 1613 sta->sta.addr, 1614 sta->sdata->vif.bss_conf.bssid); 1615 } 1616 1617 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1618 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1619 ieee80211_recalc_ps(local); 1620 ieee80211_recalc_ps_vif(sdata); 1621 } 1622 1623 return 0; 1624 out_err: 1625 mutex_unlock(&local->sta_mtx); 1626 return err; 1627 } 1628 1629 #ifdef CONFIG_MAC80211_MESH 1630 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1631 const u8 *dst, const u8 *next_hop) 1632 { 1633 struct ieee80211_sub_if_data *sdata; 1634 struct mesh_path *mpath; 1635 struct sta_info *sta; 1636 1637 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1638 1639 rcu_read_lock(); 1640 sta = sta_info_get(sdata, next_hop); 1641 if (!sta) { 1642 rcu_read_unlock(); 1643 return -ENOENT; 1644 } 1645 1646 mpath = mesh_path_add(sdata, dst); 1647 if (IS_ERR(mpath)) { 1648 rcu_read_unlock(); 1649 return PTR_ERR(mpath); 1650 } 1651 1652 mesh_path_fix_nexthop(mpath, sta); 1653 1654 rcu_read_unlock(); 1655 return 0; 1656 } 1657 1658 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1659 const u8 *dst) 1660 { 1661 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1662 1663 if (dst) 1664 return mesh_path_del(sdata, dst); 1665 1666 mesh_path_flush_by_iface(sdata); 1667 return 0; 1668 } 1669 1670 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1671 const u8 *dst, const u8 *next_hop) 1672 { 1673 struct ieee80211_sub_if_data *sdata; 1674 struct mesh_path *mpath; 1675 struct sta_info *sta; 1676 1677 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1678 1679 rcu_read_lock(); 1680 1681 sta = sta_info_get(sdata, next_hop); 1682 if (!sta) { 1683 rcu_read_unlock(); 1684 return -ENOENT; 1685 } 1686 1687 mpath = mesh_path_lookup(sdata, dst); 1688 if (!mpath) { 1689 rcu_read_unlock(); 1690 return -ENOENT; 1691 } 1692 1693 mesh_path_fix_nexthop(mpath, sta); 1694 1695 rcu_read_unlock(); 1696 return 0; 1697 } 1698 1699 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1700 struct mpath_info *pinfo) 1701 { 1702 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1703 1704 if (next_hop_sta) 1705 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1706 else 1707 eth_zero_addr(next_hop); 1708 1709 memset(pinfo, 0, sizeof(*pinfo)); 1710 1711 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1712 1713 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1714 MPATH_INFO_SN | 1715 MPATH_INFO_METRIC | 1716 MPATH_INFO_EXPTIME | 1717 MPATH_INFO_DISCOVERY_TIMEOUT | 1718 MPATH_INFO_DISCOVERY_RETRIES | 1719 MPATH_INFO_FLAGS; 1720 1721 pinfo->frame_qlen = mpath->frame_queue.qlen; 1722 pinfo->sn = mpath->sn; 1723 pinfo->metric = mpath->metric; 1724 if (time_before(jiffies, mpath->exp_time)) 1725 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1726 pinfo->discovery_timeout = 1727 jiffies_to_msecs(mpath->discovery_timeout); 1728 pinfo->discovery_retries = mpath->discovery_retries; 1729 if (mpath->flags & MESH_PATH_ACTIVE) 1730 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1731 if (mpath->flags & MESH_PATH_RESOLVING) 1732 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1733 if (mpath->flags & MESH_PATH_SN_VALID) 1734 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1735 if (mpath->flags & MESH_PATH_FIXED) 1736 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1737 if (mpath->flags & MESH_PATH_RESOLVED) 1738 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1739 } 1740 1741 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1742 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1743 1744 { 1745 struct ieee80211_sub_if_data *sdata; 1746 struct mesh_path *mpath; 1747 1748 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1749 1750 rcu_read_lock(); 1751 mpath = mesh_path_lookup(sdata, dst); 1752 if (!mpath) { 1753 rcu_read_unlock(); 1754 return -ENOENT; 1755 } 1756 memcpy(dst, mpath->dst, ETH_ALEN); 1757 mpath_set_pinfo(mpath, next_hop, pinfo); 1758 rcu_read_unlock(); 1759 return 0; 1760 } 1761 1762 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1763 int idx, u8 *dst, u8 *next_hop, 1764 struct mpath_info *pinfo) 1765 { 1766 struct ieee80211_sub_if_data *sdata; 1767 struct mesh_path *mpath; 1768 1769 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1770 1771 rcu_read_lock(); 1772 mpath = mesh_path_lookup_by_idx(sdata, idx); 1773 if (!mpath) { 1774 rcu_read_unlock(); 1775 return -ENOENT; 1776 } 1777 memcpy(dst, mpath->dst, ETH_ALEN); 1778 mpath_set_pinfo(mpath, next_hop, pinfo); 1779 rcu_read_unlock(); 1780 return 0; 1781 } 1782 1783 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1784 struct mpath_info *pinfo) 1785 { 1786 memset(pinfo, 0, sizeof(*pinfo)); 1787 memcpy(mpp, mpath->mpp, ETH_ALEN); 1788 1789 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1790 } 1791 1792 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1793 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1794 1795 { 1796 struct ieee80211_sub_if_data *sdata; 1797 struct mesh_path *mpath; 1798 1799 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1800 1801 rcu_read_lock(); 1802 mpath = mpp_path_lookup(sdata, dst); 1803 if (!mpath) { 1804 rcu_read_unlock(); 1805 return -ENOENT; 1806 } 1807 memcpy(dst, mpath->dst, ETH_ALEN); 1808 mpp_set_pinfo(mpath, mpp, pinfo); 1809 rcu_read_unlock(); 1810 return 0; 1811 } 1812 1813 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1814 int idx, u8 *dst, u8 *mpp, 1815 struct mpath_info *pinfo) 1816 { 1817 struct ieee80211_sub_if_data *sdata; 1818 struct mesh_path *mpath; 1819 1820 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1821 1822 rcu_read_lock(); 1823 mpath = mpp_path_lookup_by_idx(sdata, idx); 1824 if (!mpath) { 1825 rcu_read_unlock(); 1826 return -ENOENT; 1827 } 1828 memcpy(dst, mpath->dst, ETH_ALEN); 1829 mpp_set_pinfo(mpath, mpp, pinfo); 1830 rcu_read_unlock(); 1831 return 0; 1832 } 1833 1834 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1835 struct net_device *dev, 1836 struct mesh_config *conf) 1837 { 1838 struct ieee80211_sub_if_data *sdata; 1839 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1840 1841 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1842 return 0; 1843 } 1844 1845 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1846 { 1847 return (mask >> (parm-1)) & 0x1; 1848 } 1849 1850 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1851 const struct mesh_setup *setup) 1852 { 1853 u8 *new_ie; 1854 const u8 *old_ie; 1855 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1856 struct ieee80211_sub_if_data, u.mesh); 1857 1858 /* allocate information elements */ 1859 new_ie = NULL; 1860 old_ie = ifmsh->ie; 1861 1862 if (setup->ie_len) { 1863 new_ie = kmemdup(setup->ie, setup->ie_len, 1864 GFP_KERNEL); 1865 if (!new_ie) 1866 return -ENOMEM; 1867 } 1868 ifmsh->ie_len = setup->ie_len; 1869 ifmsh->ie = new_ie; 1870 kfree(old_ie); 1871 1872 /* now copy the rest of the setup parameters */ 1873 ifmsh->mesh_id_len = setup->mesh_id_len; 1874 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1875 ifmsh->mesh_sp_id = setup->sync_method; 1876 ifmsh->mesh_pp_id = setup->path_sel_proto; 1877 ifmsh->mesh_pm_id = setup->path_metric; 1878 ifmsh->user_mpm = setup->user_mpm; 1879 ifmsh->mesh_auth_id = setup->auth_id; 1880 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1881 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1882 if (setup->is_authenticated) 1883 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1884 if (setup->is_secure) 1885 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1886 1887 /* mcast rate setting in Mesh Node */ 1888 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1889 sizeof(setup->mcast_rate)); 1890 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1891 1892 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1893 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1894 1895 return 0; 1896 } 1897 1898 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1899 struct net_device *dev, u32 mask, 1900 const struct mesh_config *nconf) 1901 { 1902 struct mesh_config *conf; 1903 struct ieee80211_sub_if_data *sdata; 1904 struct ieee80211_if_mesh *ifmsh; 1905 1906 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1907 ifmsh = &sdata->u.mesh; 1908 1909 /* Set the config options which we are interested in setting */ 1910 conf = &(sdata->u.mesh.mshcfg); 1911 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1912 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1913 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1914 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1915 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1916 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1917 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1918 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1919 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1920 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1921 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1922 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1923 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1924 conf->element_ttl = nconf->element_ttl; 1925 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1926 if (ifmsh->user_mpm) 1927 return -EBUSY; 1928 conf->auto_open_plinks = nconf->auto_open_plinks; 1929 } 1930 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1931 conf->dot11MeshNbrOffsetMaxNeighbor = 1932 nconf->dot11MeshNbrOffsetMaxNeighbor; 1933 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1934 conf->dot11MeshHWMPmaxPREQretries = 1935 nconf->dot11MeshHWMPmaxPREQretries; 1936 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1937 conf->path_refresh_time = nconf->path_refresh_time; 1938 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1939 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1940 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1941 conf->dot11MeshHWMPactivePathTimeout = 1942 nconf->dot11MeshHWMPactivePathTimeout; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1944 conf->dot11MeshHWMPpreqMinInterval = 1945 nconf->dot11MeshHWMPpreqMinInterval; 1946 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1947 conf->dot11MeshHWMPperrMinInterval = 1948 nconf->dot11MeshHWMPperrMinInterval; 1949 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1950 mask)) 1951 conf->dot11MeshHWMPnetDiameterTraversalTime = 1952 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1953 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1954 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1955 ieee80211_mesh_root_setup(ifmsh); 1956 } 1957 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1958 /* our current gate announcement implementation rides on root 1959 * announcements, so require this ifmsh to also be a root node 1960 * */ 1961 if (nconf->dot11MeshGateAnnouncementProtocol && 1962 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1963 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1964 ieee80211_mesh_root_setup(ifmsh); 1965 } 1966 conf->dot11MeshGateAnnouncementProtocol = 1967 nconf->dot11MeshGateAnnouncementProtocol; 1968 } 1969 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1970 conf->dot11MeshHWMPRannInterval = 1971 nconf->dot11MeshHWMPRannInterval; 1972 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1973 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1974 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1975 /* our RSSI threshold implementation is supported only for 1976 * devices that report signal in dBm. 1977 */ 1978 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 1979 return -ENOTSUPP; 1980 conf->rssi_threshold = nconf->rssi_threshold; 1981 } 1982 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1983 conf->ht_opmode = nconf->ht_opmode; 1984 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1985 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1986 } 1987 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1988 conf->dot11MeshHWMPactivePathToRootTimeout = 1989 nconf->dot11MeshHWMPactivePathToRootTimeout; 1990 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1991 conf->dot11MeshHWMProotInterval = 1992 nconf->dot11MeshHWMProotInterval; 1993 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1994 conf->dot11MeshHWMPconfirmationInterval = 1995 nconf->dot11MeshHWMPconfirmationInterval; 1996 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1997 conf->power_mode = nconf->power_mode; 1998 ieee80211_mps_local_status_update(sdata); 1999 } 2000 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2001 conf->dot11MeshAwakeWindowDuration = 2002 nconf->dot11MeshAwakeWindowDuration; 2003 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2004 conf->plink_timeout = nconf->plink_timeout; 2005 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2006 return 0; 2007 } 2008 2009 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2010 const struct mesh_config *conf, 2011 const struct mesh_setup *setup) 2012 { 2013 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2014 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2015 int err; 2016 2017 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2018 err = copy_mesh_setup(ifmsh, setup); 2019 if (err) 2020 return err; 2021 2022 /* can mesh use other SMPS modes? */ 2023 sdata->smps_mode = IEEE80211_SMPS_OFF; 2024 sdata->needed_rx_chains = sdata->local->rx_chains; 2025 2026 mutex_lock(&sdata->local->mtx); 2027 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2028 IEEE80211_CHANCTX_SHARED); 2029 mutex_unlock(&sdata->local->mtx); 2030 if (err) 2031 return err; 2032 2033 return ieee80211_start_mesh(sdata); 2034 } 2035 2036 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2037 { 2038 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2039 2040 ieee80211_stop_mesh(sdata); 2041 mutex_lock(&sdata->local->mtx); 2042 ieee80211_vif_release_channel(sdata); 2043 mutex_unlock(&sdata->local->mtx); 2044 2045 return 0; 2046 } 2047 #endif 2048 2049 static int ieee80211_change_bss(struct wiphy *wiphy, 2050 struct net_device *dev, 2051 struct bss_parameters *params) 2052 { 2053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2054 struct ieee80211_supported_band *sband; 2055 u32 changed = 0; 2056 2057 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2058 return -ENOENT; 2059 2060 sband = ieee80211_get_sband(sdata); 2061 if (!sband) 2062 return -EINVAL; 2063 2064 if (params->use_cts_prot >= 0) { 2065 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2066 changed |= BSS_CHANGED_ERP_CTS_PROT; 2067 } 2068 if (params->use_short_preamble >= 0) { 2069 sdata->vif.bss_conf.use_short_preamble = 2070 params->use_short_preamble; 2071 changed |= BSS_CHANGED_ERP_PREAMBLE; 2072 } 2073 2074 if (!sdata->vif.bss_conf.use_short_slot && 2075 sband->band == NL80211_BAND_5GHZ) { 2076 sdata->vif.bss_conf.use_short_slot = true; 2077 changed |= BSS_CHANGED_ERP_SLOT; 2078 } 2079 2080 if (params->use_short_slot_time >= 0) { 2081 sdata->vif.bss_conf.use_short_slot = 2082 params->use_short_slot_time; 2083 changed |= BSS_CHANGED_ERP_SLOT; 2084 } 2085 2086 if (params->basic_rates) { 2087 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2088 wiphy->bands[sband->band], 2089 params->basic_rates, 2090 params->basic_rates_len, 2091 &sdata->vif.bss_conf.basic_rates); 2092 changed |= BSS_CHANGED_BASIC_RATES; 2093 ieee80211_check_rate_mask(sdata); 2094 } 2095 2096 if (params->ap_isolate >= 0) { 2097 if (params->ap_isolate) 2098 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2099 else 2100 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2101 ieee80211_check_fast_rx_iface(sdata); 2102 } 2103 2104 if (params->ht_opmode >= 0) { 2105 sdata->vif.bss_conf.ht_operation_mode = 2106 (u16) params->ht_opmode; 2107 changed |= BSS_CHANGED_HT; 2108 } 2109 2110 if (params->p2p_ctwindow >= 0) { 2111 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2112 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2113 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2114 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2115 changed |= BSS_CHANGED_P2P_PS; 2116 } 2117 2118 if (params->p2p_opp_ps > 0) { 2119 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2120 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2121 changed |= BSS_CHANGED_P2P_PS; 2122 } else if (params->p2p_opp_ps == 0) { 2123 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2124 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2125 changed |= BSS_CHANGED_P2P_PS; 2126 } 2127 2128 ieee80211_bss_info_change_notify(sdata, changed); 2129 2130 return 0; 2131 } 2132 2133 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2134 struct net_device *dev, 2135 struct ieee80211_txq_params *params) 2136 { 2137 struct ieee80211_local *local = wiphy_priv(wiphy); 2138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2139 struct ieee80211_tx_queue_params p; 2140 2141 if (!local->ops->conf_tx) 2142 return -EOPNOTSUPP; 2143 2144 if (local->hw.queues < IEEE80211_NUM_ACS) 2145 return -EOPNOTSUPP; 2146 2147 memset(&p, 0, sizeof(p)); 2148 p.aifs = params->aifs; 2149 p.cw_max = params->cwmax; 2150 p.cw_min = params->cwmin; 2151 p.txop = params->txop; 2152 2153 /* 2154 * Setting tx queue params disables u-apsd because it's only 2155 * called in master mode. 2156 */ 2157 p.uapsd = false; 2158 2159 sdata->tx_conf[params->ac] = p; 2160 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2161 wiphy_debug(local->hw.wiphy, 2162 "failed to set TX queue parameters for AC %d\n", 2163 params->ac); 2164 return -EINVAL; 2165 } 2166 2167 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2168 2169 return 0; 2170 } 2171 2172 #ifdef CONFIG_PM 2173 static int ieee80211_suspend(struct wiphy *wiphy, 2174 struct cfg80211_wowlan *wowlan) 2175 { 2176 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2177 } 2178 2179 static int ieee80211_resume(struct wiphy *wiphy) 2180 { 2181 return __ieee80211_resume(wiphy_priv(wiphy)); 2182 } 2183 #else 2184 #define ieee80211_suspend NULL 2185 #define ieee80211_resume NULL 2186 #endif 2187 2188 static int ieee80211_scan(struct wiphy *wiphy, 2189 struct cfg80211_scan_request *req) 2190 { 2191 struct ieee80211_sub_if_data *sdata; 2192 2193 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2194 2195 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2196 case NL80211_IFTYPE_STATION: 2197 case NL80211_IFTYPE_ADHOC: 2198 case NL80211_IFTYPE_MESH_POINT: 2199 case NL80211_IFTYPE_P2P_CLIENT: 2200 case NL80211_IFTYPE_P2P_DEVICE: 2201 break; 2202 case NL80211_IFTYPE_P2P_GO: 2203 if (sdata->local->ops->hw_scan) 2204 break; 2205 /* 2206 * FIXME: implement NoA while scanning in software, 2207 * for now fall through to allow scanning only when 2208 * beaconing hasn't been configured yet 2209 */ 2210 /* fall through */ 2211 case NL80211_IFTYPE_AP: 2212 /* 2213 * If the scan has been forced (and the driver supports 2214 * forcing), don't care about being beaconing already. 2215 * This will create problems to the attached stations (e.g. all 2216 * the frames sent while scanning on other channel will be 2217 * lost) 2218 */ 2219 if (sdata->u.ap.beacon && 2220 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2221 !(req->flags & NL80211_SCAN_FLAG_AP))) 2222 return -EOPNOTSUPP; 2223 break; 2224 case NL80211_IFTYPE_NAN: 2225 default: 2226 return -EOPNOTSUPP; 2227 } 2228 2229 return ieee80211_request_scan(sdata, req); 2230 } 2231 2232 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2233 { 2234 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2235 } 2236 2237 static int 2238 ieee80211_sched_scan_start(struct wiphy *wiphy, 2239 struct net_device *dev, 2240 struct cfg80211_sched_scan_request *req) 2241 { 2242 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2243 2244 if (!sdata->local->ops->sched_scan_start) 2245 return -EOPNOTSUPP; 2246 2247 return ieee80211_request_sched_scan_start(sdata, req); 2248 } 2249 2250 static int 2251 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2252 u64 reqid) 2253 { 2254 struct ieee80211_local *local = wiphy_priv(wiphy); 2255 2256 if (!local->ops->sched_scan_stop) 2257 return -EOPNOTSUPP; 2258 2259 return ieee80211_request_sched_scan_stop(local); 2260 } 2261 2262 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2263 struct cfg80211_auth_request *req) 2264 { 2265 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2266 } 2267 2268 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2269 struct cfg80211_assoc_request *req) 2270 { 2271 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2272 } 2273 2274 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2275 struct cfg80211_deauth_request *req) 2276 { 2277 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2278 } 2279 2280 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2281 struct cfg80211_disassoc_request *req) 2282 { 2283 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2284 } 2285 2286 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2287 struct cfg80211_ibss_params *params) 2288 { 2289 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2290 } 2291 2292 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2293 { 2294 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2295 } 2296 2297 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2298 struct ocb_setup *setup) 2299 { 2300 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2301 } 2302 2303 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2304 { 2305 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2306 } 2307 2308 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2309 int rate[NUM_NL80211_BANDS]) 2310 { 2311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2312 2313 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2314 sizeof(int) * NUM_NL80211_BANDS); 2315 2316 return 0; 2317 } 2318 2319 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2320 { 2321 struct ieee80211_local *local = wiphy_priv(wiphy); 2322 int err; 2323 2324 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2325 ieee80211_check_fast_xmit_all(local); 2326 2327 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2328 2329 if (err) { 2330 ieee80211_check_fast_xmit_all(local); 2331 return err; 2332 } 2333 } 2334 2335 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2336 (changed & WIPHY_PARAM_DYN_ACK)) { 2337 s16 coverage_class; 2338 2339 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2340 wiphy->coverage_class : -1; 2341 err = drv_set_coverage_class(local, coverage_class); 2342 2343 if (err) 2344 return err; 2345 } 2346 2347 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2348 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2349 2350 if (err) 2351 return err; 2352 } 2353 2354 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2355 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2356 return -EINVAL; 2357 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2358 } 2359 if (changed & WIPHY_PARAM_RETRY_LONG) { 2360 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2361 return -EINVAL; 2362 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2363 } 2364 if (changed & 2365 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2366 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2367 2368 return 0; 2369 } 2370 2371 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2372 struct wireless_dev *wdev, 2373 enum nl80211_tx_power_setting type, int mbm) 2374 { 2375 struct ieee80211_local *local = wiphy_priv(wiphy); 2376 struct ieee80211_sub_if_data *sdata; 2377 enum nl80211_tx_power_setting txp_type = type; 2378 bool update_txp_type = false; 2379 bool has_monitor = false; 2380 2381 if (wdev) { 2382 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2383 2384 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2385 sdata = rtnl_dereference(local->monitor_sdata); 2386 if (!sdata) 2387 return -EOPNOTSUPP; 2388 } 2389 2390 switch (type) { 2391 case NL80211_TX_POWER_AUTOMATIC: 2392 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2393 txp_type = NL80211_TX_POWER_LIMITED; 2394 break; 2395 case NL80211_TX_POWER_LIMITED: 2396 case NL80211_TX_POWER_FIXED: 2397 if (mbm < 0 || (mbm % 100)) 2398 return -EOPNOTSUPP; 2399 sdata->user_power_level = MBM_TO_DBM(mbm); 2400 break; 2401 } 2402 2403 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2404 update_txp_type = true; 2405 sdata->vif.bss_conf.txpower_type = txp_type; 2406 } 2407 2408 ieee80211_recalc_txpower(sdata, update_txp_type); 2409 2410 return 0; 2411 } 2412 2413 switch (type) { 2414 case NL80211_TX_POWER_AUTOMATIC: 2415 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2416 txp_type = NL80211_TX_POWER_LIMITED; 2417 break; 2418 case NL80211_TX_POWER_LIMITED: 2419 case NL80211_TX_POWER_FIXED: 2420 if (mbm < 0 || (mbm % 100)) 2421 return -EOPNOTSUPP; 2422 local->user_power_level = MBM_TO_DBM(mbm); 2423 break; 2424 } 2425 2426 mutex_lock(&local->iflist_mtx); 2427 list_for_each_entry(sdata, &local->interfaces, list) { 2428 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2429 has_monitor = true; 2430 continue; 2431 } 2432 sdata->user_power_level = local->user_power_level; 2433 if (txp_type != sdata->vif.bss_conf.txpower_type) 2434 update_txp_type = true; 2435 sdata->vif.bss_conf.txpower_type = txp_type; 2436 } 2437 list_for_each_entry(sdata, &local->interfaces, list) { 2438 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2439 continue; 2440 ieee80211_recalc_txpower(sdata, update_txp_type); 2441 } 2442 mutex_unlock(&local->iflist_mtx); 2443 2444 if (has_monitor) { 2445 sdata = rtnl_dereference(local->monitor_sdata); 2446 if (sdata) { 2447 sdata->user_power_level = local->user_power_level; 2448 if (txp_type != sdata->vif.bss_conf.txpower_type) 2449 update_txp_type = true; 2450 sdata->vif.bss_conf.txpower_type = txp_type; 2451 2452 ieee80211_recalc_txpower(sdata, update_txp_type); 2453 } 2454 } 2455 2456 return 0; 2457 } 2458 2459 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2460 struct wireless_dev *wdev, 2461 int *dbm) 2462 { 2463 struct ieee80211_local *local = wiphy_priv(wiphy); 2464 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2465 2466 if (local->ops->get_txpower) 2467 return drv_get_txpower(local, sdata, dbm); 2468 2469 if (!local->use_chanctx) 2470 *dbm = local->hw.conf.power_level; 2471 else 2472 *dbm = sdata->vif.bss_conf.txpower; 2473 2474 return 0; 2475 } 2476 2477 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2478 const u8 *addr) 2479 { 2480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2481 2482 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2483 2484 return 0; 2485 } 2486 2487 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2488 { 2489 struct ieee80211_local *local = wiphy_priv(wiphy); 2490 2491 drv_rfkill_poll(local); 2492 } 2493 2494 #ifdef CONFIG_NL80211_TESTMODE 2495 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2496 struct wireless_dev *wdev, 2497 void *data, int len) 2498 { 2499 struct ieee80211_local *local = wiphy_priv(wiphy); 2500 struct ieee80211_vif *vif = NULL; 2501 2502 if (!local->ops->testmode_cmd) 2503 return -EOPNOTSUPP; 2504 2505 if (wdev) { 2506 struct ieee80211_sub_if_data *sdata; 2507 2508 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2509 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2510 vif = &sdata->vif; 2511 } 2512 2513 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2514 } 2515 2516 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2517 struct sk_buff *skb, 2518 struct netlink_callback *cb, 2519 void *data, int len) 2520 { 2521 struct ieee80211_local *local = wiphy_priv(wiphy); 2522 2523 if (!local->ops->testmode_dump) 2524 return -EOPNOTSUPP; 2525 2526 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2527 } 2528 #endif 2529 2530 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2531 enum ieee80211_smps_mode smps_mode) 2532 { 2533 struct sta_info *sta; 2534 enum ieee80211_smps_mode old_req; 2535 2536 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2537 return -EINVAL; 2538 2539 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2540 return 0; 2541 2542 old_req = sdata->u.ap.req_smps; 2543 sdata->u.ap.req_smps = smps_mode; 2544 2545 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2546 if (old_req == smps_mode || 2547 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2548 return 0; 2549 2550 ht_dbg(sdata, 2551 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2552 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2553 2554 mutex_lock(&sdata->local->sta_mtx); 2555 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2556 /* 2557 * Only stations associated to our AP and 2558 * associated VLANs 2559 */ 2560 if (sta->sdata->bss != &sdata->u.ap) 2561 continue; 2562 2563 /* This station doesn't support MIMO - skip it */ 2564 if (sta_info_tx_streams(sta) == 1) 2565 continue; 2566 2567 /* 2568 * Don't wake up a STA just to send the action frame 2569 * unless we are getting more restrictive. 2570 */ 2571 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2572 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2573 smps_mode)) { 2574 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2575 sta->sta.addr); 2576 continue; 2577 } 2578 2579 /* 2580 * If the STA is not authorized, wait until it gets 2581 * authorized and the action frame will be sent then. 2582 */ 2583 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2584 continue; 2585 2586 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2587 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2588 sdata->vif.bss_conf.bssid); 2589 } 2590 mutex_unlock(&sdata->local->sta_mtx); 2591 2592 sdata->smps_mode = smps_mode; 2593 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2594 2595 return 0; 2596 } 2597 2598 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2599 enum ieee80211_smps_mode smps_mode) 2600 { 2601 const u8 *ap; 2602 enum ieee80211_smps_mode old_req; 2603 int err; 2604 struct sta_info *sta; 2605 bool tdls_peer_found = false; 2606 2607 lockdep_assert_held(&sdata->wdev.mtx); 2608 2609 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2610 return -EINVAL; 2611 2612 old_req = sdata->u.mgd.req_smps; 2613 sdata->u.mgd.req_smps = smps_mode; 2614 2615 if (old_req == smps_mode && 2616 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2617 return 0; 2618 2619 /* 2620 * If not associated, or current association is not an HT 2621 * association, there's no need to do anything, just store 2622 * the new value until we associate. 2623 */ 2624 if (!sdata->u.mgd.associated || 2625 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2626 return 0; 2627 2628 ap = sdata->u.mgd.associated->bssid; 2629 2630 rcu_read_lock(); 2631 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2632 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2633 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2634 continue; 2635 2636 tdls_peer_found = true; 2637 break; 2638 } 2639 rcu_read_unlock(); 2640 2641 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2642 if (tdls_peer_found || !sdata->u.mgd.powersave) 2643 smps_mode = IEEE80211_SMPS_OFF; 2644 else 2645 smps_mode = IEEE80211_SMPS_DYNAMIC; 2646 } 2647 2648 /* send SM PS frame to AP */ 2649 err = ieee80211_send_smps_action(sdata, smps_mode, 2650 ap, ap); 2651 if (err) 2652 sdata->u.mgd.req_smps = old_req; 2653 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2654 ieee80211_teardown_tdls_peers(sdata); 2655 2656 return err; 2657 } 2658 2659 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2660 bool enabled, int timeout) 2661 { 2662 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2663 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2664 2665 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2666 return -EOPNOTSUPP; 2667 2668 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2669 return -EOPNOTSUPP; 2670 2671 if (enabled == sdata->u.mgd.powersave && 2672 timeout == local->dynamic_ps_forced_timeout) 2673 return 0; 2674 2675 sdata->u.mgd.powersave = enabled; 2676 local->dynamic_ps_forced_timeout = timeout; 2677 2678 /* no change, but if automatic follow powersave */ 2679 sdata_lock(sdata); 2680 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2681 sdata_unlock(sdata); 2682 2683 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2684 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2685 2686 ieee80211_recalc_ps(local); 2687 ieee80211_recalc_ps_vif(sdata); 2688 2689 return 0; 2690 } 2691 2692 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2693 struct net_device *dev, 2694 s32 rssi_thold, u32 rssi_hyst) 2695 { 2696 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2697 struct ieee80211_vif *vif = &sdata->vif; 2698 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2699 2700 if (rssi_thold == bss_conf->cqm_rssi_thold && 2701 rssi_hyst == bss_conf->cqm_rssi_hyst) 2702 return 0; 2703 2704 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2705 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2706 return -EOPNOTSUPP; 2707 2708 bss_conf->cqm_rssi_thold = rssi_thold; 2709 bss_conf->cqm_rssi_hyst = rssi_hyst; 2710 bss_conf->cqm_rssi_low = 0; 2711 bss_conf->cqm_rssi_high = 0; 2712 sdata->u.mgd.last_cqm_event_signal = 0; 2713 2714 /* tell the driver upon association, unless already associated */ 2715 if (sdata->u.mgd.associated && 2716 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2717 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2718 2719 return 0; 2720 } 2721 2722 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2723 struct net_device *dev, 2724 s32 rssi_low, s32 rssi_high) 2725 { 2726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2727 struct ieee80211_vif *vif = &sdata->vif; 2728 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2729 2730 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2731 return -EOPNOTSUPP; 2732 2733 bss_conf->cqm_rssi_low = rssi_low; 2734 bss_conf->cqm_rssi_high = rssi_high; 2735 bss_conf->cqm_rssi_thold = 0; 2736 bss_conf->cqm_rssi_hyst = 0; 2737 sdata->u.mgd.last_cqm_event_signal = 0; 2738 2739 /* tell the driver upon association, unless already associated */ 2740 if (sdata->u.mgd.associated && 2741 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2742 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2743 2744 return 0; 2745 } 2746 2747 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2748 struct net_device *dev, 2749 const u8 *addr, 2750 const struct cfg80211_bitrate_mask *mask) 2751 { 2752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2753 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2754 int i, ret; 2755 2756 if (!ieee80211_sdata_running(sdata)) 2757 return -ENETDOWN; 2758 2759 /* 2760 * If active validate the setting and reject it if it doesn't leave 2761 * at least one basic rate usable, since we really have to be able 2762 * to send something, and if we're an AP we have to be able to do 2763 * so at a basic rate so that all clients can receive it. 2764 */ 2765 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2766 sdata->vif.bss_conf.chandef.chan) { 2767 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2768 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2769 2770 if (!(mask->control[band].legacy & basic_rates)) 2771 return -EINVAL; 2772 } 2773 2774 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2775 ret = drv_set_bitrate_mask(local, sdata, mask); 2776 if (ret) 2777 return ret; 2778 } 2779 2780 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2781 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2782 int j; 2783 2784 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2785 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2786 sizeof(mask->control[i].ht_mcs)); 2787 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2788 mask->control[i].vht_mcs, 2789 sizeof(mask->control[i].vht_mcs)); 2790 2791 sdata->rc_has_mcs_mask[i] = false; 2792 sdata->rc_has_vht_mcs_mask[i] = false; 2793 if (!sband) 2794 continue; 2795 2796 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2797 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2798 sdata->rc_has_mcs_mask[i] = true; 2799 break; 2800 } 2801 } 2802 2803 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2804 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2805 sdata->rc_has_vht_mcs_mask[i] = true; 2806 break; 2807 } 2808 } 2809 } 2810 2811 return 0; 2812 } 2813 2814 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2815 struct net_device *dev, 2816 struct cfg80211_chan_def *chandef, 2817 u32 cac_time_ms) 2818 { 2819 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2820 struct ieee80211_local *local = sdata->local; 2821 int err; 2822 2823 mutex_lock(&local->mtx); 2824 if (!list_empty(&local->roc_list) || local->scanning) { 2825 err = -EBUSY; 2826 goto out_unlock; 2827 } 2828 2829 /* whatever, but channel contexts should not complain about that one */ 2830 sdata->smps_mode = IEEE80211_SMPS_OFF; 2831 sdata->needed_rx_chains = local->rx_chains; 2832 2833 err = ieee80211_vif_use_channel(sdata, chandef, 2834 IEEE80211_CHANCTX_SHARED); 2835 if (err) 2836 goto out_unlock; 2837 2838 ieee80211_queue_delayed_work(&sdata->local->hw, 2839 &sdata->dfs_cac_timer_work, 2840 msecs_to_jiffies(cac_time_ms)); 2841 2842 out_unlock: 2843 mutex_unlock(&local->mtx); 2844 return err; 2845 } 2846 2847 static struct cfg80211_beacon_data * 2848 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2849 { 2850 struct cfg80211_beacon_data *new_beacon; 2851 u8 *pos; 2852 int len; 2853 2854 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2855 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2856 beacon->probe_resp_len; 2857 2858 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2859 if (!new_beacon) 2860 return NULL; 2861 2862 pos = (u8 *)(new_beacon + 1); 2863 if (beacon->head_len) { 2864 new_beacon->head_len = beacon->head_len; 2865 new_beacon->head = pos; 2866 memcpy(pos, beacon->head, beacon->head_len); 2867 pos += beacon->head_len; 2868 } 2869 if (beacon->tail_len) { 2870 new_beacon->tail_len = beacon->tail_len; 2871 new_beacon->tail = pos; 2872 memcpy(pos, beacon->tail, beacon->tail_len); 2873 pos += beacon->tail_len; 2874 } 2875 if (beacon->beacon_ies_len) { 2876 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2877 new_beacon->beacon_ies = pos; 2878 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2879 pos += beacon->beacon_ies_len; 2880 } 2881 if (beacon->proberesp_ies_len) { 2882 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2883 new_beacon->proberesp_ies = pos; 2884 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2885 pos += beacon->proberesp_ies_len; 2886 } 2887 if (beacon->assocresp_ies_len) { 2888 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2889 new_beacon->assocresp_ies = pos; 2890 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2891 pos += beacon->assocresp_ies_len; 2892 } 2893 if (beacon->probe_resp_len) { 2894 new_beacon->probe_resp_len = beacon->probe_resp_len; 2895 beacon->probe_resp = pos; 2896 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2897 pos += beacon->probe_resp_len; 2898 } 2899 2900 return new_beacon; 2901 } 2902 2903 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2904 { 2905 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2906 2907 ieee80211_queue_work(&sdata->local->hw, 2908 &sdata->csa_finalize_work); 2909 } 2910 EXPORT_SYMBOL(ieee80211_csa_finish); 2911 2912 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2913 u32 *changed) 2914 { 2915 int err; 2916 2917 switch (sdata->vif.type) { 2918 case NL80211_IFTYPE_AP: 2919 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2920 NULL); 2921 kfree(sdata->u.ap.next_beacon); 2922 sdata->u.ap.next_beacon = NULL; 2923 2924 if (err < 0) 2925 return err; 2926 *changed |= err; 2927 break; 2928 case NL80211_IFTYPE_ADHOC: 2929 err = ieee80211_ibss_finish_csa(sdata); 2930 if (err < 0) 2931 return err; 2932 *changed |= err; 2933 break; 2934 #ifdef CONFIG_MAC80211_MESH 2935 case NL80211_IFTYPE_MESH_POINT: 2936 err = ieee80211_mesh_finish_csa(sdata); 2937 if (err < 0) 2938 return err; 2939 *changed |= err; 2940 break; 2941 #endif 2942 default: 2943 WARN_ON(1); 2944 return -EINVAL; 2945 } 2946 2947 return 0; 2948 } 2949 2950 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2951 { 2952 struct ieee80211_local *local = sdata->local; 2953 u32 changed = 0; 2954 int err; 2955 2956 sdata_assert_lock(sdata); 2957 lockdep_assert_held(&local->mtx); 2958 lockdep_assert_held(&local->chanctx_mtx); 2959 2960 /* 2961 * using reservation isn't immediate as it may be deferred until later 2962 * with multi-vif. once reservation is complete it will re-schedule the 2963 * work with no reserved_chanctx so verify chandef to check if it 2964 * completed successfully 2965 */ 2966 2967 if (sdata->reserved_chanctx) { 2968 /* 2969 * with multi-vif csa driver may call ieee80211_csa_finish() 2970 * many times while waiting for other interfaces to use their 2971 * reservations 2972 */ 2973 if (sdata->reserved_ready) 2974 return 0; 2975 2976 return ieee80211_vif_use_reserved_context(sdata); 2977 } 2978 2979 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 2980 &sdata->csa_chandef)) 2981 return -EINVAL; 2982 2983 sdata->vif.csa_active = false; 2984 2985 err = ieee80211_set_after_csa_beacon(sdata, &changed); 2986 if (err) 2987 return err; 2988 2989 ieee80211_bss_info_change_notify(sdata, changed); 2990 2991 if (sdata->csa_block_tx) { 2992 ieee80211_wake_vif_queues(local, sdata, 2993 IEEE80211_QUEUE_STOP_REASON_CSA); 2994 sdata->csa_block_tx = false; 2995 } 2996 2997 err = drv_post_channel_switch(sdata); 2998 if (err) 2999 return err; 3000 3001 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3002 3003 return 0; 3004 } 3005 3006 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3007 { 3008 if (__ieee80211_csa_finalize(sdata)) { 3009 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3010 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3011 GFP_KERNEL); 3012 } 3013 } 3014 3015 void ieee80211_csa_finalize_work(struct work_struct *work) 3016 { 3017 struct ieee80211_sub_if_data *sdata = 3018 container_of(work, struct ieee80211_sub_if_data, 3019 csa_finalize_work); 3020 struct ieee80211_local *local = sdata->local; 3021 3022 sdata_lock(sdata); 3023 mutex_lock(&local->mtx); 3024 mutex_lock(&local->chanctx_mtx); 3025 3026 /* AP might have been stopped while waiting for the lock. */ 3027 if (!sdata->vif.csa_active) 3028 goto unlock; 3029 3030 if (!ieee80211_sdata_running(sdata)) 3031 goto unlock; 3032 3033 ieee80211_csa_finalize(sdata); 3034 3035 unlock: 3036 mutex_unlock(&local->chanctx_mtx); 3037 mutex_unlock(&local->mtx); 3038 sdata_unlock(sdata); 3039 } 3040 3041 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3042 struct cfg80211_csa_settings *params, 3043 u32 *changed) 3044 { 3045 struct ieee80211_csa_settings csa = {}; 3046 int err; 3047 3048 switch (sdata->vif.type) { 3049 case NL80211_IFTYPE_AP: 3050 sdata->u.ap.next_beacon = 3051 cfg80211_beacon_dup(¶ms->beacon_after); 3052 if (!sdata->u.ap.next_beacon) 3053 return -ENOMEM; 3054 3055 /* 3056 * With a count of 0, we don't have to wait for any 3057 * TBTT before switching, so complete the CSA 3058 * immediately. In theory, with a count == 1 we 3059 * should delay the switch until just before the next 3060 * TBTT, but that would complicate things so we switch 3061 * immediately too. If we would delay the switch 3062 * until the next TBTT, we would have to set the probe 3063 * response here. 3064 * 3065 * TODO: A channel switch with count <= 1 without 3066 * sending a CSA action frame is kind of useless, 3067 * because the clients won't know we're changing 3068 * channels. The action frame must be implemented 3069 * either here or in the userspace. 3070 */ 3071 if (params->count <= 1) 3072 break; 3073 3074 if ((params->n_counter_offsets_beacon > 3075 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3076 (params->n_counter_offsets_presp > 3077 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3078 return -EINVAL; 3079 3080 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3081 csa.counter_offsets_presp = params->counter_offsets_presp; 3082 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3083 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3084 csa.count = params->count; 3085 3086 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3087 if (err < 0) { 3088 kfree(sdata->u.ap.next_beacon); 3089 return err; 3090 } 3091 *changed |= err; 3092 3093 break; 3094 case NL80211_IFTYPE_ADHOC: 3095 if (!sdata->vif.bss_conf.ibss_joined) 3096 return -EINVAL; 3097 3098 if (params->chandef.width != sdata->u.ibss.chandef.width) 3099 return -EINVAL; 3100 3101 switch (params->chandef.width) { 3102 case NL80211_CHAN_WIDTH_40: 3103 if (cfg80211_get_chandef_type(¶ms->chandef) != 3104 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3105 return -EINVAL; 3106 case NL80211_CHAN_WIDTH_5: 3107 case NL80211_CHAN_WIDTH_10: 3108 case NL80211_CHAN_WIDTH_20_NOHT: 3109 case NL80211_CHAN_WIDTH_20: 3110 break; 3111 default: 3112 return -EINVAL; 3113 } 3114 3115 /* changes into another band are not supported */ 3116 if (sdata->u.ibss.chandef.chan->band != 3117 params->chandef.chan->band) 3118 return -EINVAL; 3119 3120 /* see comments in the NL80211_IFTYPE_AP block */ 3121 if (params->count > 1) { 3122 err = ieee80211_ibss_csa_beacon(sdata, params); 3123 if (err < 0) 3124 return err; 3125 *changed |= err; 3126 } 3127 3128 ieee80211_send_action_csa(sdata, params); 3129 3130 break; 3131 #ifdef CONFIG_MAC80211_MESH 3132 case NL80211_IFTYPE_MESH_POINT: { 3133 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3134 3135 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3136 return -EINVAL; 3137 3138 /* changes into another band are not supported */ 3139 if (sdata->vif.bss_conf.chandef.chan->band != 3140 params->chandef.chan->band) 3141 return -EINVAL; 3142 3143 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3144 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3145 if (!ifmsh->pre_value) 3146 ifmsh->pre_value = 1; 3147 else 3148 ifmsh->pre_value++; 3149 } 3150 3151 /* see comments in the NL80211_IFTYPE_AP block */ 3152 if (params->count > 1) { 3153 err = ieee80211_mesh_csa_beacon(sdata, params); 3154 if (err < 0) { 3155 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3156 return err; 3157 } 3158 *changed |= err; 3159 } 3160 3161 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3162 ieee80211_send_action_csa(sdata, params); 3163 3164 break; 3165 } 3166 #endif 3167 default: 3168 return -EOPNOTSUPP; 3169 } 3170 3171 return 0; 3172 } 3173 3174 static int 3175 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3176 struct cfg80211_csa_settings *params) 3177 { 3178 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3179 struct ieee80211_local *local = sdata->local; 3180 struct ieee80211_channel_switch ch_switch; 3181 struct ieee80211_chanctx_conf *conf; 3182 struct ieee80211_chanctx *chanctx; 3183 u32 changed = 0; 3184 int err; 3185 3186 sdata_assert_lock(sdata); 3187 lockdep_assert_held(&local->mtx); 3188 3189 if (!list_empty(&local->roc_list) || local->scanning) 3190 return -EBUSY; 3191 3192 if (sdata->wdev.cac_started) 3193 return -EBUSY; 3194 3195 if (cfg80211_chandef_identical(¶ms->chandef, 3196 &sdata->vif.bss_conf.chandef)) 3197 return -EINVAL; 3198 3199 /* don't allow another channel switch if one is already active. */ 3200 if (sdata->vif.csa_active) 3201 return -EBUSY; 3202 3203 mutex_lock(&local->chanctx_mtx); 3204 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3205 lockdep_is_held(&local->chanctx_mtx)); 3206 if (!conf) { 3207 err = -EBUSY; 3208 goto out; 3209 } 3210 3211 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3212 3213 ch_switch.timestamp = 0; 3214 ch_switch.device_timestamp = 0; 3215 ch_switch.block_tx = params->block_tx; 3216 ch_switch.chandef = params->chandef; 3217 ch_switch.count = params->count; 3218 3219 err = drv_pre_channel_switch(sdata, &ch_switch); 3220 if (err) 3221 goto out; 3222 3223 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3224 chanctx->mode, 3225 params->radar_required); 3226 if (err) 3227 goto out; 3228 3229 /* if reservation is invalid then this will fail */ 3230 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3231 if (err) { 3232 ieee80211_vif_unreserve_chanctx(sdata); 3233 goto out; 3234 } 3235 3236 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3237 if (err) { 3238 ieee80211_vif_unreserve_chanctx(sdata); 3239 goto out; 3240 } 3241 3242 sdata->csa_chandef = params->chandef; 3243 sdata->csa_block_tx = params->block_tx; 3244 sdata->vif.csa_active = true; 3245 3246 if (sdata->csa_block_tx) 3247 ieee80211_stop_vif_queues(local, sdata, 3248 IEEE80211_QUEUE_STOP_REASON_CSA); 3249 3250 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3251 params->count); 3252 3253 if (changed) { 3254 ieee80211_bss_info_change_notify(sdata, changed); 3255 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3256 } else { 3257 /* if the beacon didn't change, we can finalize immediately */ 3258 ieee80211_csa_finalize(sdata); 3259 } 3260 3261 out: 3262 mutex_unlock(&local->chanctx_mtx); 3263 return err; 3264 } 3265 3266 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3267 struct cfg80211_csa_settings *params) 3268 { 3269 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3270 struct ieee80211_local *local = sdata->local; 3271 int err; 3272 3273 mutex_lock(&local->mtx); 3274 err = __ieee80211_channel_switch(wiphy, dev, params); 3275 mutex_unlock(&local->mtx); 3276 3277 return err; 3278 } 3279 3280 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3281 { 3282 lockdep_assert_held(&local->mtx); 3283 3284 local->roc_cookie_counter++; 3285 3286 /* wow, you wrapped 64 bits ... more likely a bug */ 3287 if (WARN_ON(local->roc_cookie_counter == 0)) 3288 local->roc_cookie_counter++; 3289 3290 return local->roc_cookie_counter; 3291 } 3292 3293 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3294 u64 *cookie, gfp_t gfp) 3295 { 3296 unsigned long spin_flags; 3297 struct sk_buff *ack_skb; 3298 int id; 3299 3300 ack_skb = skb_copy(skb, gfp); 3301 if (!ack_skb) 3302 return -ENOMEM; 3303 3304 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3305 id = idr_alloc(&local->ack_status_frames, ack_skb, 3306 1, 0x10000, GFP_ATOMIC); 3307 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3308 3309 if (id < 0) { 3310 kfree_skb(ack_skb); 3311 return -ENOMEM; 3312 } 3313 3314 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3315 3316 *cookie = ieee80211_mgmt_tx_cookie(local); 3317 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3318 3319 return 0; 3320 } 3321 3322 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3323 struct wireless_dev *wdev, 3324 u16 frame_type, bool reg) 3325 { 3326 struct ieee80211_local *local = wiphy_priv(wiphy); 3327 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3328 3329 switch (frame_type) { 3330 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3331 if (reg) { 3332 local->probe_req_reg++; 3333 sdata->vif.probe_req_reg++; 3334 } else { 3335 if (local->probe_req_reg) 3336 local->probe_req_reg--; 3337 3338 if (sdata->vif.probe_req_reg) 3339 sdata->vif.probe_req_reg--; 3340 } 3341 3342 if (!local->open_count) 3343 break; 3344 3345 if (sdata->vif.probe_req_reg == 1) 3346 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3347 FIF_PROBE_REQ); 3348 else if (sdata->vif.probe_req_reg == 0) 3349 drv_config_iface_filter(local, sdata, 0, 3350 FIF_PROBE_REQ); 3351 3352 ieee80211_configure_filter(local); 3353 break; 3354 default: 3355 break; 3356 } 3357 } 3358 3359 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3360 { 3361 struct ieee80211_local *local = wiphy_priv(wiphy); 3362 3363 if (local->started) 3364 return -EOPNOTSUPP; 3365 3366 return drv_set_antenna(local, tx_ant, rx_ant); 3367 } 3368 3369 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3370 { 3371 struct ieee80211_local *local = wiphy_priv(wiphy); 3372 3373 return drv_get_antenna(local, tx_ant, rx_ant); 3374 } 3375 3376 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3377 struct net_device *dev, 3378 struct cfg80211_gtk_rekey_data *data) 3379 { 3380 struct ieee80211_local *local = wiphy_priv(wiphy); 3381 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3382 3383 if (!local->ops->set_rekey_data) 3384 return -EOPNOTSUPP; 3385 3386 drv_set_rekey_data(local, sdata, data); 3387 3388 return 0; 3389 } 3390 3391 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3392 const u8 *peer, u64 *cookie) 3393 { 3394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3395 struct ieee80211_local *local = sdata->local; 3396 struct ieee80211_qos_hdr *nullfunc; 3397 struct sk_buff *skb; 3398 int size = sizeof(*nullfunc); 3399 __le16 fc; 3400 bool qos; 3401 struct ieee80211_tx_info *info; 3402 struct sta_info *sta; 3403 struct ieee80211_chanctx_conf *chanctx_conf; 3404 enum nl80211_band band; 3405 int ret; 3406 3407 /* the lock is needed to assign the cookie later */ 3408 mutex_lock(&local->mtx); 3409 3410 rcu_read_lock(); 3411 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3412 if (WARN_ON(!chanctx_conf)) { 3413 ret = -EINVAL; 3414 goto unlock; 3415 } 3416 band = chanctx_conf->def.chan->band; 3417 sta = sta_info_get_bss(sdata, peer); 3418 if (sta) { 3419 qos = sta->sta.wme; 3420 } else { 3421 ret = -ENOLINK; 3422 goto unlock; 3423 } 3424 3425 if (qos) { 3426 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3427 IEEE80211_STYPE_QOS_NULLFUNC | 3428 IEEE80211_FCTL_FROMDS); 3429 } else { 3430 size -= 2; 3431 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3432 IEEE80211_STYPE_NULLFUNC | 3433 IEEE80211_FCTL_FROMDS); 3434 } 3435 3436 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3437 if (!skb) { 3438 ret = -ENOMEM; 3439 goto unlock; 3440 } 3441 3442 skb->dev = dev; 3443 3444 skb_reserve(skb, local->hw.extra_tx_headroom); 3445 3446 nullfunc = skb_put(skb, size); 3447 nullfunc->frame_control = fc; 3448 nullfunc->duration_id = 0; 3449 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3450 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3451 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3452 nullfunc->seq_ctrl = 0; 3453 3454 info = IEEE80211_SKB_CB(skb); 3455 3456 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3457 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3458 info->band = band; 3459 3460 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3461 skb->priority = 7; 3462 if (qos) 3463 nullfunc->qos_ctrl = cpu_to_le16(7); 3464 3465 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3466 if (ret) { 3467 kfree_skb(skb); 3468 goto unlock; 3469 } 3470 3471 local_bh_disable(); 3472 ieee80211_xmit(sdata, sta, skb); 3473 local_bh_enable(); 3474 3475 ret = 0; 3476 unlock: 3477 rcu_read_unlock(); 3478 mutex_unlock(&local->mtx); 3479 3480 return ret; 3481 } 3482 3483 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3484 struct wireless_dev *wdev, 3485 struct cfg80211_chan_def *chandef) 3486 { 3487 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3488 struct ieee80211_local *local = wiphy_priv(wiphy); 3489 struct ieee80211_chanctx_conf *chanctx_conf; 3490 int ret = -ENODATA; 3491 3492 rcu_read_lock(); 3493 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3494 if (chanctx_conf) { 3495 *chandef = sdata->vif.bss_conf.chandef; 3496 ret = 0; 3497 } else if (local->open_count > 0 && 3498 local->open_count == local->monitors && 3499 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3500 if (local->use_chanctx) 3501 *chandef = local->monitor_chandef; 3502 else 3503 *chandef = local->_oper_chandef; 3504 ret = 0; 3505 } 3506 rcu_read_unlock(); 3507 3508 return ret; 3509 } 3510 3511 #ifdef CONFIG_PM 3512 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3513 { 3514 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3515 } 3516 #endif 3517 3518 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3519 struct net_device *dev, 3520 struct cfg80211_qos_map *qos_map) 3521 { 3522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3523 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3524 3525 if (qos_map) { 3526 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3527 if (!new_qos_map) 3528 return -ENOMEM; 3529 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3530 } else { 3531 /* A NULL qos_map was passed to disable QoS mapping */ 3532 new_qos_map = NULL; 3533 } 3534 3535 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3536 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3537 if (old_qos_map) 3538 kfree_rcu(old_qos_map, rcu_head); 3539 3540 return 0; 3541 } 3542 3543 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3544 struct net_device *dev, 3545 struct cfg80211_chan_def *chandef) 3546 { 3547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3548 int ret; 3549 u32 changed = 0; 3550 3551 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3552 if (ret == 0) 3553 ieee80211_bss_info_change_notify(sdata, changed); 3554 3555 return ret; 3556 } 3557 3558 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3559 u8 tsid, const u8 *peer, u8 up, 3560 u16 admitted_time) 3561 { 3562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3563 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3564 int ac = ieee802_1d_to_ac[up]; 3565 3566 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3567 return -EOPNOTSUPP; 3568 3569 if (!(sdata->wmm_acm & BIT(up))) 3570 return -EINVAL; 3571 3572 if (ifmgd->tx_tspec[ac].admitted_time) 3573 return -EBUSY; 3574 3575 if (admitted_time) { 3576 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3577 ifmgd->tx_tspec[ac].tsid = tsid; 3578 ifmgd->tx_tspec[ac].up = up; 3579 } 3580 3581 return 0; 3582 } 3583 3584 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3585 u8 tsid, const u8 *peer) 3586 { 3587 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3588 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3589 struct ieee80211_local *local = wiphy_priv(wiphy); 3590 int ac; 3591 3592 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3593 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3594 3595 /* skip unused entries */ 3596 if (!tx_tspec->admitted_time) 3597 continue; 3598 3599 if (tx_tspec->tsid != tsid) 3600 continue; 3601 3602 /* due to this new packets will be reassigned to non-ACM ACs */ 3603 tx_tspec->up = -1; 3604 3605 /* Make sure that all packets have been sent to avoid to 3606 * restore the QoS params on packets that are still on the 3607 * queues. 3608 */ 3609 synchronize_net(); 3610 ieee80211_flush_queues(local, sdata, false); 3611 3612 /* restore the normal QoS parameters 3613 * (unconditionally to avoid races) 3614 */ 3615 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3616 tx_tspec->downgraded = false; 3617 ieee80211_sta_handle_tspec_ac_params(sdata); 3618 3619 /* finally clear all the data */ 3620 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3621 3622 return 0; 3623 } 3624 3625 return -ENOENT; 3626 } 3627 3628 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3629 u8 inst_id, 3630 enum nl80211_nan_func_term_reason reason, 3631 gfp_t gfp) 3632 { 3633 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3634 struct cfg80211_nan_func *func; 3635 u64 cookie; 3636 3637 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3638 return; 3639 3640 spin_lock_bh(&sdata->u.nan.func_lock); 3641 3642 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3643 if (WARN_ON(!func)) { 3644 spin_unlock_bh(&sdata->u.nan.func_lock); 3645 return; 3646 } 3647 3648 cookie = func->cookie; 3649 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3650 3651 spin_unlock_bh(&sdata->u.nan.func_lock); 3652 3653 cfg80211_free_nan_func(func); 3654 3655 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3656 reason, cookie, gfp); 3657 } 3658 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3659 3660 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3661 struct cfg80211_nan_match_params *match, 3662 gfp_t gfp) 3663 { 3664 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3665 struct cfg80211_nan_func *func; 3666 3667 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3668 return; 3669 3670 spin_lock_bh(&sdata->u.nan.func_lock); 3671 3672 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3673 if (WARN_ON(!func)) { 3674 spin_unlock_bh(&sdata->u.nan.func_lock); 3675 return; 3676 } 3677 match->cookie = func->cookie; 3678 3679 spin_unlock_bh(&sdata->u.nan.func_lock); 3680 3681 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3682 } 3683 EXPORT_SYMBOL(ieee80211_nan_func_match); 3684 3685 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3686 struct net_device *dev, 3687 const bool enabled) 3688 { 3689 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3690 3691 sdata->u.ap.multicast_to_unicast = enabled; 3692 3693 return 0; 3694 } 3695 3696 const struct cfg80211_ops mac80211_config_ops = { 3697 .add_virtual_intf = ieee80211_add_iface, 3698 .del_virtual_intf = ieee80211_del_iface, 3699 .change_virtual_intf = ieee80211_change_iface, 3700 .start_p2p_device = ieee80211_start_p2p_device, 3701 .stop_p2p_device = ieee80211_stop_p2p_device, 3702 .add_key = ieee80211_add_key, 3703 .del_key = ieee80211_del_key, 3704 .get_key = ieee80211_get_key, 3705 .set_default_key = ieee80211_config_default_key, 3706 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3707 .start_ap = ieee80211_start_ap, 3708 .change_beacon = ieee80211_change_beacon, 3709 .stop_ap = ieee80211_stop_ap, 3710 .add_station = ieee80211_add_station, 3711 .del_station = ieee80211_del_station, 3712 .change_station = ieee80211_change_station, 3713 .get_station = ieee80211_get_station, 3714 .dump_station = ieee80211_dump_station, 3715 .dump_survey = ieee80211_dump_survey, 3716 #ifdef CONFIG_MAC80211_MESH 3717 .add_mpath = ieee80211_add_mpath, 3718 .del_mpath = ieee80211_del_mpath, 3719 .change_mpath = ieee80211_change_mpath, 3720 .get_mpath = ieee80211_get_mpath, 3721 .dump_mpath = ieee80211_dump_mpath, 3722 .get_mpp = ieee80211_get_mpp, 3723 .dump_mpp = ieee80211_dump_mpp, 3724 .update_mesh_config = ieee80211_update_mesh_config, 3725 .get_mesh_config = ieee80211_get_mesh_config, 3726 .join_mesh = ieee80211_join_mesh, 3727 .leave_mesh = ieee80211_leave_mesh, 3728 #endif 3729 .join_ocb = ieee80211_join_ocb, 3730 .leave_ocb = ieee80211_leave_ocb, 3731 .change_bss = ieee80211_change_bss, 3732 .set_txq_params = ieee80211_set_txq_params, 3733 .set_monitor_channel = ieee80211_set_monitor_channel, 3734 .suspend = ieee80211_suspend, 3735 .resume = ieee80211_resume, 3736 .scan = ieee80211_scan, 3737 .abort_scan = ieee80211_abort_scan, 3738 .sched_scan_start = ieee80211_sched_scan_start, 3739 .sched_scan_stop = ieee80211_sched_scan_stop, 3740 .auth = ieee80211_auth, 3741 .assoc = ieee80211_assoc, 3742 .deauth = ieee80211_deauth, 3743 .disassoc = ieee80211_disassoc, 3744 .join_ibss = ieee80211_join_ibss, 3745 .leave_ibss = ieee80211_leave_ibss, 3746 .set_mcast_rate = ieee80211_set_mcast_rate, 3747 .set_wiphy_params = ieee80211_set_wiphy_params, 3748 .set_tx_power = ieee80211_set_tx_power, 3749 .get_tx_power = ieee80211_get_tx_power, 3750 .set_wds_peer = ieee80211_set_wds_peer, 3751 .rfkill_poll = ieee80211_rfkill_poll, 3752 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3753 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3754 .set_power_mgmt = ieee80211_set_power_mgmt, 3755 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3756 .remain_on_channel = ieee80211_remain_on_channel, 3757 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3758 .mgmt_tx = ieee80211_mgmt_tx, 3759 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3760 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3761 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3762 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3763 .set_antenna = ieee80211_set_antenna, 3764 .get_antenna = ieee80211_get_antenna, 3765 .set_rekey_data = ieee80211_set_rekey_data, 3766 .tdls_oper = ieee80211_tdls_oper, 3767 .tdls_mgmt = ieee80211_tdls_mgmt, 3768 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3769 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3770 .probe_client = ieee80211_probe_client, 3771 .set_noack_map = ieee80211_set_noack_map, 3772 #ifdef CONFIG_PM 3773 .set_wakeup = ieee80211_set_wakeup, 3774 #endif 3775 .get_channel = ieee80211_cfg_get_channel, 3776 .start_radar_detection = ieee80211_start_radar_detection, 3777 .channel_switch = ieee80211_channel_switch, 3778 .set_qos_map = ieee80211_set_qos_map, 3779 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3780 .add_tx_ts = ieee80211_add_tx_ts, 3781 .del_tx_ts = ieee80211_del_tx_ts, 3782 .start_nan = ieee80211_start_nan, 3783 .stop_nan = ieee80211_stop_nan, 3784 .nan_change_conf = ieee80211_nan_change_conf, 3785 .add_nan_func = ieee80211_add_nan_func, 3786 .del_nan_func = ieee80211_del_nan_func, 3787 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3788 }; 3789