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 * Copyright (C) 2018 Intel Corporation 8 * 9 * This file is GPLv2 as found in COPYING. 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && 162 params && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && 166 params && params->use_4addr >= 0) { 167 sdata->u.mgd.use_4addr = params->use_4addr; 168 } 169 170 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 171 ret = ieee80211_set_mon_options(sdata, params); 172 if (ret) 173 return ret; 174 } 175 176 return 0; 177 } 178 179 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 180 struct wireless_dev *wdev) 181 { 182 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 183 int ret; 184 185 mutex_lock(&sdata->local->chanctx_mtx); 186 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 187 mutex_unlock(&sdata->local->chanctx_mtx); 188 if (ret < 0) 189 return ret; 190 191 return ieee80211_do_open(wdev, true); 192 } 193 194 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 195 struct wireless_dev *wdev) 196 { 197 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 198 } 199 200 static int ieee80211_start_nan(struct wiphy *wiphy, 201 struct wireless_dev *wdev, 202 struct cfg80211_nan_conf *conf) 203 { 204 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 205 int ret; 206 207 mutex_lock(&sdata->local->chanctx_mtx); 208 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 209 mutex_unlock(&sdata->local->chanctx_mtx); 210 if (ret < 0) 211 return ret; 212 213 ret = ieee80211_do_open(wdev, true); 214 if (ret) 215 return ret; 216 217 ret = drv_start_nan(sdata->local, sdata, conf); 218 if (ret) 219 ieee80211_sdata_stop(sdata); 220 221 sdata->u.nan.conf = *conf; 222 223 return ret; 224 } 225 226 static void ieee80211_stop_nan(struct wiphy *wiphy, 227 struct wireless_dev *wdev) 228 { 229 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 230 231 drv_stop_nan(sdata->local, sdata); 232 ieee80211_sdata_stop(sdata); 233 } 234 235 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 236 struct wireless_dev *wdev, 237 struct cfg80211_nan_conf *conf, 238 u32 changes) 239 { 240 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 241 struct cfg80211_nan_conf new_conf; 242 int ret = 0; 243 244 if (sdata->vif.type != NL80211_IFTYPE_NAN) 245 return -EOPNOTSUPP; 246 247 if (!ieee80211_sdata_running(sdata)) 248 return -ENETDOWN; 249 250 new_conf = sdata->u.nan.conf; 251 252 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 253 new_conf.master_pref = conf->master_pref; 254 255 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 256 new_conf.bands = conf->bands; 257 258 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 259 if (!ret) 260 sdata->u.nan.conf = new_conf; 261 262 return ret; 263 } 264 265 static int ieee80211_add_nan_func(struct wiphy *wiphy, 266 struct wireless_dev *wdev, 267 struct cfg80211_nan_func *nan_func) 268 { 269 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 270 int ret; 271 272 if (sdata->vif.type != NL80211_IFTYPE_NAN) 273 return -EOPNOTSUPP; 274 275 if (!ieee80211_sdata_running(sdata)) 276 return -ENETDOWN; 277 278 spin_lock_bh(&sdata->u.nan.func_lock); 279 280 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 281 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 282 GFP_ATOMIC); 283 spin_unlock_bh(&sdata->u.nan.func_lock); 284 285 if (ret < 0) 286 return ret; 287 288 nan_func->instance_id = ret; 289 290 WARN_ON(nan_func->instance_id == 0); 291 292 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 293 if (ret) { 294 spin_lock_bh(&sdata->u.nan.func_lock); 295 idr_remove(&sdata->u.nan.function_inst_ids, 296 nan_func->instance_id); 297 spin_unlock_bh(&sdata->u.nan.func_lock); 298 } 299 300 return ret; 301 } 302 303 static struct cfg80211_nan_func * 304 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 305 u64 cookie) 306 { 307 struct cfg80211_nan_func *func; 308 int id; 309 310 lockdep_assert_held(&sdata->u.nan.func_lock); 311 312 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 313 if (func->cookie == cookie) 314 return func; 315 } 316 317 return NULL; 318 } 319 320 static void ieee80211_del_nan_func(struct wiphy *wiphy, 321 struct wireless_dev *wdev, u64 cookie) 322 { 323 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 324 struct cfg80211_nan_func *func; 325 u8 instance_id = 0; 326 327 if (sdata->vif.type != NL80211_IFTYPE_NAN || 328 !ieee80211_sdata_running(sdata)) 329 return; 330 331 spin_lock_bh(&sdata->u.nan.func_lock); 332 333 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 334 if (func) 335 instance_id = func->instance_id; 336 337 spin_unlock_bh(&sdata->u.nan.func_lock); 338 339 if (instance_id) 340 drv_del_nan_func(sdata->local, sdata, instance_id); 341 } 342 343 static int ieee80211_set_noack_map(struct wiphy *wiphy, 344 struct net_device *dev, 345 u16 noack_map) 346 { 347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 348 349 sdata->noack_map = noack_map; 350 351 ieee80211_check_fast_xmit_iface(sdata); 352 353 return 0; 354 } 355 356 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 357 u8 key_idx, bool pairwise, const u8 *mac_addr, 358 struct key_params *params) 359 { 360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 361 struct ieee80211_local *local = sdata->local; 362 struct sta_info *sta = NULL; 363 const struct ieee80211_cipher_scheme *cs = NULL; 364 struct ieee80211_key *key; 365 int err; 366 367 if (!ieee80211_sdata_running(sdata)) 368 return -ENETDOWN; 369 370 /* reject WEP and TKIP keys if WEP failed to initialize */ 371 switch (params->cipher) { 372 case WLAN_CIPHER_SUITE_WEP40: 373 case WLAN_CIPHER_SUITE_TKIP: 374 case WLAN_CIPHER_SUITE_WEP104: 375 if (IS_ERR(local->wep_tx_tfm)) 376 return -EINVAL; 377 break; 378 case WLAN_CIPHER_SUITE_CCMP: 379 case WLAN_CIPHER_SUITE_CCMP_256: 380 case WLAN_CIPHER_SUITE_AES_CMAC: 381 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 382 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 383 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 384 case WLAN_CIPHER_SUITE_GCMP: 385 case WLAN_CIPHER_SUITE_GCMP_256: 386 break; 387 default: 388 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 389 break; 390 } 391 392 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 393 params->key, params->seq_len, params->seq, 394 cs); 395 if (IS_ERR(key)) 396 return PTR_ERR(key); 397 398 if (pairwise) 399 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 400 401 mutex_lock(&local->sta_mtx); 402 403 if (mac_addr) { 404 sta = sta_info_get_bss(sdata, mac_addr); 405 /* 406 * The ASSOC test makes sure the driver is ready to 407 * receive the key. When wpa_supplicant has roamed 408 * using FT, it attempts to set the key before 409 * association has completed, this rejects that attempt 410 * so it will set the key again after association. 411 * 412 * TODO: accept the key if we have a station entry and 413 * add it to the device after the station. 414 */ 415 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 416 ieee80211_key_free_unused(key); 417 err = -ENOENT; 418 goto out_unlock; 419 } 420 } 421 422 switch (sdata->vif.type) { 423 case NL80211_IFTYPE_STATION: 424 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 425 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 426 break; 427 case NL80211_IFTYPE_AP: 428 case NL80211_IFTYPE_AP_VLAN: 429 /* Keys without a station are used for TX only */ 430 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 431 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 432 break; 433 case NL80211_IFTYPE_ADHOC: 434 /* no MFP (yet) */ 435 break; 436 case NL80211_IFTYPE_MESH_POINT: 437 #ifdef CONFIG_MAC80211_MESH 438 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 439 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 440 break; 441 #endif 442 case NL80211_IFTYPE_WDS: 443 case NL80211_IFTYPE_MONITOR: 444 case NL80211_IFTYPE_P2P_DEVICE: 445 case NL80211_IFTYPE_NAN: 446 case NL80211_IFTYPE_UNSPECIFIED: 447 case NUM_NL80211_IFTYPES: 448 case NL80211_IFTYPE_P2P_CLIENT: 449 case NL80211_IFTYPE_P2P_GO: 450 case NL80211_IFTYPE_OCB: 451 /* shouldn't happen */ 452 WARN_ON_ONCE(1); 453 break; 454 } 455 456 if (sta) 457 sta->cipher_scheme = cs; 458 459 err = ieee80211_key_link(key, sdata, sta); 460 461 out_unlock: 462 mutex_unlock(&local->sta_mtx); 463 464 return err; 465 } 466 467 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 468 u8 key_idx, bool pairwise, const u8 *mac_addr) 469 { 470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 471 struct ieee80211_local *local = sdata->local; 472 struct sta_info *sta; 473 struct ieee80211_key *key = NULL; 474 int ret; 475 476 mutex_lock(&local->sta_mtx); 477 mutex_lock(&local->key_mtx); 478 479 if (mac_addr) { 480 ret = -ENOENT; 481 482 sta = sta_info_get_bss(sdata, mac_addr); 483 if (!sta) 484 goto out_unlock; 485 486 if (pairwise) 487 key = key_mtx_dereference(local, sta->ptk[key_idx]); 488 else 489 key = key_mtx_dereference(local, sta->gtk[key_idx]); 490 } else 491 key = key_mtx_dereference(local, sdata->keys[key_idx]); 492 493 if (!key) { 494 ret = -ENOENT; 495 goto out_unlock; 496 } 497 498 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 499 500 ret = 0; 501 out_unlock: 502 mutex_unlock(&local->key_mtx); 503 mutex_unlock(&local->sta_mtx); 504 505 return ret; 506 } 507 508 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 509 u8 key_idx, bool pairwise, const u8 *mac_addr, 510 void *cookie, 511 void (*callback)(void *cookie, 512 struct key_params *params)) 513 { 514 struct ieee80211_sub_if_data *sdata; 515 struct sta_info *sta = NULL; 516 u8 seq[6] = {0}; 517 struct key_params params; 518 struct ieee80211_key *key = NULL; 519 u64 pn64; 520 u32 iv32; 521 u16 iv16; 522 int err = -ENOENT; 523 struct ieee80211_key_seq kseq = {}; 524 525 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 526 527 rcu_read_lock(); 528 529 if (mac_addr) { 530 sta = sta_info_get_bss(sdata, mac_addr); 531 if (!sta) 532 goto out; 533 534 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 535 key = rcu_dereference(sta->ptk[key_idx]); 536 else if (!pairwise && 537 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 538 key = rcu_dereference(sta->gtk[key_idx]); 539 } else 540 key = rcu_dereference(sdata->keys[key_idx]); 541 542 if (!key) 543 goto out; 544 545 memset(¶ms, 0, sizeof(params)); 546 547 params.cipher = key->conf.cipher; 548 549 switch (key->conf.cipher) { 550 case WLAN_CIPHER_SUITE_TKIP: 551 pn64 = atomic64_read(&key->conf.tx_pn); 552 iv32 = TKIP_PN_TO_IV32(pn64); 553 iv16 = TKIP_PN_TO_IV16(pn64); 554 555 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 556 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 557 drv_get_key_seq(sdata->local, key, &kseq); 558 iv32 = kseq.tkip.iv32; 559 iv16 = kseq.tkip.iv16; 560 } 561 562 seq[0] = iv16 & 0xff; 563 seq[1] = (iv16 >> 8) & 0xff; 564 seq[2] = iv32 & 0xff; 565 seq[3] = (iv32 >> 8) & 0xff; 566 seq[4] = (iv32 >> 16) & 0xff; 567 seq[5] = (iv32 >> 24) & 0xff; 568 params.seq = seq; 569 params.seq_len = 6; 570 break; 571 case WLAN_CIPHER_SUITE_CCMP: 572 case WLAN_CIPHER_SUITE_CCMP_256: 573 case WLAN_CIPHER_SUITE_AES_CMAC: 574 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 575 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 576 offsetof(typeof(kseq), aes_cmac)); 577 /* fall through */ 578 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 579 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 580 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 581 offsetof(typeof(kseq), aes_gmac)); 582 /* fall through */ 583 case WLAN_CIPHER_SUITE_GCMP: 584 case WLAN_CIPHER_SUITE_GCMP_256: 585 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 586 offsetof(typeof(kseq), gcmp)); 587 588 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 589 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 590 drv_get_key_seq(sdata->local, key, &kseq); 591 memcpy(seq, kseq.ccmp.pn, 6); 592 } else { 593 pn64 = atomic64_read(&key->conf.tx_pn); 594 seq[0] = pn64; 595 seq[1] = pn64 >> 8; 596 seq[2] = pn64 >> 16; 597 seq[3] = pn64 >> 24; 598 seq[4] = pn64 >> 32; 599 seq[5] = pn64 >> 40; 600 } 601 params.seq = seq; 602 params.seq_len = 6; 603 break; 604 default: 605 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 606 break; 607 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 608 break; 609 drv_get_key_seq(sdata->local, key, &kseq); 610 params.seq = kseq.hw.seq; 611 params.seq_len = kseq.hw.seq_len; 612 break; 613 } 614 615 params.key = key->conf.key; 616 params.key_len = key->conf.keylen; 617 618 callback(cookie, ¶ms); 619 err = 0; 620 621 out: 622 rcu_read_unlock(); 623 return err; 624 } 625 626 static int ieee80211_config_default_key(struct wiphy *wiphy, 627 struct net_device *dev, 628 u8 key_idx, bool uni, 629 bool multi) 630 { 631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 632 633 ieee80211_set_default_key(sdata, key_idx, uni, multi); 634 635 return 0; 636 } 637 638 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 639 struct net_device *dev, 640 u8 key_idx) 641 { 642 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 643 644 ieee80211_set_default_mgmt_key(sdata, key_idx); 645 646 return 0; 647 } 648 649 void sta_set_rate_info_tx(struct sta_info *sta, 650 const struct ieee80211_tx_rate *rate, 651 struct rate_info *rinfo) 652 { 653 rinfo->flags = 0; 654 if (rate->flags & IEEE80211_TX_RC_MCS) { 655 rinfo->flags |= RATE_INFO_FLAGS_MCS; 656 rinfo->mcs = rate->idx; 657 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 658 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 659 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 660 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 661 } else { 662 struct ieee80211_supported_band *sband; 663 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 664 u16 brate; 665 666 sband = ieee80211_get_sband(sta->sdata); 667 if (sband) { 668 brate = sband->bitrates[rate->idx].bitrate; 669 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 670 } 671 } 672 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 673 rinfo->bw = RATE_INFO_BW_40; 674 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 675 rinfo->bw = RATE_INFO_BW_80; 676 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 677 rinfo->bw = RATE_INFO_BW_160; 678 else 679 rinfo->bw = RATE_INFO_BW_20; 680 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 681 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 682 } 683 684 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 685 int idx, u8 *mac, struct station_info *sinfo) 686 { 687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 688 struct ieee80211_local *local = sdata->local; 689 struct sta_info *sta; 690 int ret = -ENOENT; 691 692 mutex_lock(&local->sta_mtx); 693 694 sta = sta_info_get_by_idx(sdata, idx); 695 if (sta) { 696 ret = 0; 697 memcpy(mac, sta->sta.addr, ETH_ALEN); 698 sta_set_sinfo(sta, sinfo, true); 699 } 700 701 mutex_unlock(&local->sta_mtx); 702 703 return ret; 704 } 705 706 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 707 int idx, struct survey_info *survey) 708 { 709 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 710 711 return drv_get_survey(local, idx, survey); 712 } 713 714 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 715 const u8 *mac, struct station_info *sinfo) 716 { 717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 718 struct ieee80211_local *local = sdata->local; 719 struct sta_info *sta; 720 int ret = -ENOENT; 721 722 mutex_lock(&local->sta_mtx); 723 724 sta = sta_info_get_bss(sdata, mac); 725 if (sta) { 726 ret = 0; 727 sta_set_sinfo(sta, sinfo, true); 728 } 729 730 mutex_unlock(&local->sta_mtx); 731 732 return ret; 733 } 734 735 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 736 struct cfg80211_chan_def *chandef) 737 { 738 struct ieee80211_local *local = wiphy_priv(wiphy); 739 struct ieee80211_sub_if_data *sdata; 740 int ret = 0; 741 742 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 743 return 0; 744 745 mutex_lock(&local->mtx); 746 if (local->use_chanctx) { 747 sdata = rtnl_dereference(local->monitor_sdata); 748 if (sdata) { 749 ieee80211_vif_release_channel(sdata); 750 ret = ieee80211_vif_use_channel(sdata, chandef, 751 IEEE80211_CHANCTX_EXCLUSIVE); 752 } 753 } else if (local->open_count == local->monitors) { 754 local->_oper_chandef = *chandef; 755 ieee80211_hw_config(local, 0); 756 } 757 758 if (ret == 0) 759 local->monitor_chandef = *chandef; 760 mutex_unlock(&local->mtx); 761 762 return ret; 763 } 764 765 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 766 const u8 *resp, size_t resp_len, 767 const struct ieee80211_csa_settings *csa) 768 { 769 struct probe_resp *new, *old; 770 771 if (!resp || !resp_len) 772 return 1; 773 774 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 775 776 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 777 if (!new) 778 return -ENOMEM; 779 780 new->len = resp_len; 781 memcpy(new->data, resp, resp_len); 782 783 if (csa) 784 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 785 csa->n_counter_offsets_presp * 786 sizeof(new->csa_counter_offsets[0])); 787 788 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 789 if (old) 790 kfree_rcu(old, rcu_head); 791 792 return 0; 793 } 794 795 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 796 struct cfg80211_beacon_data *params, 797 const struct ieee80211_csa_settings *csa) 798 { 799 struct beacon_data *new, *old; 800 int new_head_len, new_tail_len; 801 int size, err; 802 u32 changed = BSS_CHANGED_BEACON; 803 804 old = sdata_dereference(sdata->u.ap.beacon, sdata); 805 806 807 /* Need to have a beacon head if we don't have one yet */ 808 if (!params->head && !old) 809 return -EINVAL; 810 811 /* new or old head? */ 812 if (params->head) 813 new_head_len = params->head_len; 814 else 815 new_head_len = old->head_len; 816 817 /* new or old tail? */ 818 if (params->tail || !old) 819 /* params->tail_len will be zero for !params->tail */ 820 new_tail_len = params->tail_len; 821 else 822 new_tail_len = old->tail_len; 823 824 size = sizeof(*new) + new_head_len + new_tail_len; 825 826 new = kzalloc(size, GFP_KERNEL); 827 if (!new) 828 return -ENOMEM; 829 830 /* start filling the new info now */ 831 832 /* 833 * pointers go into the block we allocated, 834 * memory is | beacon_data | head | tail | 835 */ 836 new->head = ((u8 *) new) + sizeof(*new); 837 new->tail = new->head + new_head_len; 838 new->head_len = new_head_len; 839 new->tail_len = new_tail_len; 840 841 if (csa) { 842 new->csa_current_counter = csa->count; 843 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 844 csa->n_counter_offsets_beacon * 845 sizeof(new->csa_counter_offsets[0])); 846 } 847 848 /* copy in head */ 849 if (params->head) 850 memcpy(new->head, params->head, new_head_len); 851 else 852 memcpy(new->head, old->head, new_head_len); 853 854 /* copy in optional tail */ 855 if (params->tail) 856 memcpy(new->tail, params->tail, new_tail_len); 857 else 858 if (old) 859 memcpy(new->tail, old->tail, new_tail_len); 860 861 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 862 params->probe_resp_len, csa); 863 if (err < 0) 864 return err; 865 if (err == 0) 866 changed |= BSS_CHANGED_AP_PROBE_RESP; 867 868 rcu_assign_pointer(sdata->u.ap.beacon, new); 869 870 if (old) 871 kfree_rcu(old, rcu_head); 872 873 return changed; 874 } 875 876 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 877 struct cfg80211_ap_settings *params) 878 { 879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 880 struct ieee80211_local *local = sdata->local; 881 struct beacon_data *old; 882 struct ieee80211_sub_if_data *vlan; 883 u32 changed = BSS_CHANGED_BEACON_INT | 884 BSS_CHANGED_BEACON_ENABLED | 885 BSS_CHANGED_BEACON | 886 BSS_CHANGED_SSID | 887 BSS_CHANGED_P2P_PS | 888 BSS_CHANGED_TXPOWER; 889 int err; 890 891 old = sdata_dereference(sdata->u.ap.beacon, sdata); 892 if (old) 893 return -EALREADY; 894 895 switch (params->smps_mode) { 896 case NL80211_SMPS_OFF: 897 sdata->smps_mode = IEEE80211_SMPS_OFF; 898 break; 899 case NL80211_SMPS_STATIC: 900 sdata->smps_mode = IEEE80211_SMPS_STATIC; 901 break; 902 case NL80211_SMPS_DYNAMIC: 903 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 904 break; 905 default: 906 return -EINVAL; 907 } 908 sdata->u.ap.req_smps = sdata->smps_mode; 909 910 sdata->needed_rx_chains = sdata->local->rx_chains; 911 912 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 913 914 mutex_lock(&local->mtx); 915 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 916 IEEE80211_CHANCTX_SHARED); 917 if (!err) 918 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 919 mutex_unlock(&local->mtx); 920 if (err) 921 return err; 922 923 /* 924 * Apply control port protocol, this allows us to 925 * not encrypt dynamic WEP control frames. 926 */ 927 sdata->control_port_protocol = params->crypto.control_port_ethertype; 928 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 929 sdata->control_port_over_nl80211 = 930 params->crypto.control_port_over_nl80211; 931 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 932 ¶ms->crypto, 933 sdata->vif.type); 934 935 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 936 vlan->control_port_protocol = 937 params->crypto.control_port_ethertype; 938 vlan->control_port_no_encrypt = 939 params->crypto.control_port_no_encrypt; 940 vlan->control_port_over_nl80211 = 941 params->crypto.control_port_over_nl80211; 942 vlan->encrypt_headroom = 943 ieee80211_cs_headroom(sdata->local, 944 ¶ms->crypto, 945 vlan->vif.type); 946 } 947 948 sdata->vif.bss_conf.dtim_period = params->dtim_period; 949 sdata->vif.bss_conf.enable_beacon = true; 950 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 951 952 sdata->vif.bss_conf.ssid_len = params->ssid_len; 953 if (params->ssid_len) 954 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 955 params->ssid_len); 956 sdata->vif.bss_conf.hidden_ssid = 957 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 958 959 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 960 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 961 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 962 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 963 if (params->p2p_opp_ps) 964 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 965 IEEE80211_P2P_OPPPS_ENABLE_BIT; 966 967 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 968 if (err < 0) { 969 ieee80211_vif_release_channel(sdata); 970 return err; 971 } 972 changed |= err; 973 974 err = drv_start_ap(sdata->local, sdata); 975 if (err) { 976 old = sdata_dereference(sdata->u.ap.beacon, sdata); 977 978 if (old) 979 kfree_rcu(old, rcu_head); 980 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 981 ieee80211_vif_release_channel(sdata); 982 return err; 983 } 984 985 ieee80211_recalc_dtim(local, sdata); 986 ieee80211_bss_info_change_notify(sdata, changed); 987 988 netif_carrier_on(dev); 989 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 990 netif_carrier_on(vlan->dev); 991 992 return 0; 993 } 994 995 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 996 struct cfg80211_beacon_data *params) 997 { 998 struct ieee80211_sub_if_data *sdata; 999 struct beacon_data *old; 1000 int err; 1001 1002 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1003 sdata_assert_lock(sdata); 1004 1005 /* don't allow changing the beacon while CSA is in place - offset 1006 * of channel switch counter may change 1007 */ 1008 if (sdata->vif.csa_active) 1009 return -EBUSY; 1010 1011 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1012 if (!old) 1013 return -ENOENT; 1014 1015 err = ieee80211_assign_beacon(sdata, params, NULL); 1016 if (err < 0) 1017 return err; 1018 ieee80211_bss_info_change_notify(sdata, err); 1019 return 0; 1020 } 1021 1022 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1023 { 1024 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1025 struct ieee80211_sub_if_data *vlan; 1026 struct ieee80211_local *local = sdata->local; 1027 struct beacon_data *old_beacon; 1028 struct probe_resp *old_probe_resp; 1029 struct cfg80211_chan_def chandef; 1030 1031 sdata_assert_lock(sdata); 1032 1033 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1034 if (!old_beacon) 1035 return -ENOENT; 1036 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1037 1038 /* abort any running channel switch */ 1039 mutex_lock(&local->mtx); 1040 sdata->vif.csa_active = false; 1041 if (sdata->csa_block_tx) { 1042 ieee80211_wake_vif_queues(local, sdata, 1043 IEEE80211_QUEUE_STOP_REASON_CSA); 1044 sdata->csa_block_tx = false; 1045 } 1046 1047 mutex_unlock(&local->mtx); 1048 1049 kfree(sdata->u.ap.next_beacon); 1050 sdata->u.ap.next_beacon = NULL; 1051 1052 /* turn off carrier for this interface and dependent VLANs */ 1053 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1054 netif_carrier_off(vlan->dev); 1055 netif_carrier_off(dev); 1056 1057 /* remove beacon and probe response */ 1058 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1059 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1060 kfree_rcu(old_beacon, rcu_head); 1061 if (old_probe_resp) 1062 kfree_rcu(old_probe_resp, rcu_head); 1063 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1064 1065 __sta_info_flush(sdata, true); 1066 ieee80211_free_keys(sdata, true); 1067 1068 sdata->vif.bss_conf.enable_beacon = false; 1069 sdata->vif.bss_conf.ssid_len = 0; 1070 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1071 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1072 1073 if (sdata->wdev.cac_started) { 1074 chandef = sdata->vif.bss_conf.chandef; 1075 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1076 cfg80211_cac_event(sdata->dev, &chandef, 1077 NL80211_RADAR_CAC_ABORTED, 1078 GFP_KERNEL); 1079 } 1080 1081 drv_stop_ap(sdata->local, sdata); 1082 1083 /* free all potentially still buffered bcast frames */ 1084 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1085 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1086 1087 mutex_lock(&local->mtx); 1088 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1089 ieee80211_vif_release_channel(sdata); 1090 mutex_unlock(&local->mtx); 1091 1092 return 0; 1093 } 1094 1095 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1096 struct iapp_layer2_update { 1097 u8 da[ETH_ALEN]; /* broadcast */ 1098 u8 sa[ETH_ALEN]; /* STA addr */ 1099 __be16 len; /* 6 */ 1100 u8 dsap; /* 0 */ 1101 u8 ssap; /* 0 */ 1102 u8 control; 1103 u8 xid_info[3]; 1104 } __packed; 1105 1106 static void ieee80211_send_layer2_update(struct sta_info *sta) 1107 { 1108 struct iapp_layer2_update *msg; 1109 struct sk_buff *skb; 1110 1111 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1112 * bridge devices */ 1113 1114 skb = dev_alloc_skb(sizeof(*msg)); 1115 if (!skb) 1116 return; 1117 msg = skb_put(skb, sizeof(*msg)); 1118 1119 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1120 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1121 1122 eth_broadcast_addr(msg->da); 1123 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1124 msg->len = htons(6); 1125 msg->dsap = 0; 1126 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1127 msg->control = 0xaf; /* XID response lsb.1111F101. 1128 * F=0 (no poll command; unsolicited frame) */ 1129 msg->xid_info[0] = 0x81; /* XID format identifier */ 1130 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1131 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1132 1133 skb->dev = sta->sdata->dev; 1134 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1135 memset(skb->cb, 0, sizeof(skb->cb)); 1136 netif_rx_ni(skb); 1137 } 1138 1139 static int sta_apply_auth_flags(struct ieee80211_local *local, 1140 struct sta_info *sta, 1141 u32 mask, u32 set) 1142 { 1143 int ret; 1144 1145 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1146 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1147 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1148 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1149 if (ret) 1150 return ret; 1151 } 1152 1153 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1154 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1155 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1156 /* 1157 * When peer becomes associated, init rate control as 1158 * well. Some drivers require rate control initialized 1159 * before drv_sta_state() is called. 1160 */ 1161 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1162 rate_control_rate_init(sta); 1163 1164 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1165 if (ret) 1166 return ret; 1167 } 1168 1169 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1170 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1171 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1172 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1173 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1174 else 1175 ret = 0; 1176 if (ret) 1177 return ret; 1178 } 1179 1180 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1181 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1182 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1183 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1184 if (ret) 1185 return ret; 1186 } 1187 1188 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1189 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1190 test_sta_flag(sta, WLAN_STA_AUTH)) { 1191 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1192 if (ret) 1193 return ret; 1194 } 1195 1196 return 0; 1197 } 1198 1199 static void sta_apply_mesh_params(struct ieee80211_local *local, 1200 struct sta_info *sta, 1201 struct station_parameters *params) 1202 { 1203 #ifdef CONFIG_MAC80211_MESH 1204 struct ieee80211_sub_if_data *sdata = sta->sdata; 1205 u32 changed = 0; 1206 1207 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1208 switch (params->plink_state) { 1209 case NL80211_PLINK_ESTAB: 1210 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1211 changed = mesh_plink_inc_estab_count(sdata); 1212 sta->mesh->plink_state = params->plink_state; 1213 sta->mesh->aid = params->peer_aid; 1214 1215 ieee80211_mps_sta_status_update(sta); 1216 changed |= ieee80211_mps_set_sta_local_pm(sta, 1217 sdata->u.mesh.mshcfg.power_mode); 1218 break; 1219 case NL80211_PLINK_LISTEN: 1220 case NL80211_PLINK_BLOCKED: 1221 case NL80211_PLINK_OPN_SNT: 1222 case NL80211_PLINK_OPN_RCVD: 1223 case NL80211_PLINK_CNF_RCVD: 1224 case NL80211_PLINK_HOLDING: 1225 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1226 changed = mesh_plink_dec_estab_count(sdata); 1227 sta->mesh->plink_state = params->plink_state; 1228 1229 ieee80211_mps_sta_status_update(sta); 1230 changed |= ieee80211_mps_set_sta_local_pm(sta, 1231 NL80211_MESH_POWER_UNKNOWN); 1232 break; 1233 default: 1234 /* nothing */ 1235 break; 1236 } 1237 } 1238 1239 switch (params->plink_action) { 1240 case NL80211_PLINK_ACTION_NO_ACTION: 1241 /* nothing */ 1242 break; 1243 case NL80211_PLINK_ACTION_OPEN: 1244 changed |= mesh_plink_open(sta); 1245 break; 1246 case NL80211_PLINK_ACTION_BLOCK: 1247 changed |= mesh_plink_block(sta); 1248 break; 1249 } 1250 1251 if (params->local_pm) 1252 changed |= ieee80211_mps_set_sta_local_pm(sta, 1253 params->local_pm); 1254 1255 ieee80211_mbss_info_change_notify(sdata, changed); 1256 #endif 1257 } 1258 1259 static int sta_apply_parameters(struct ieee80211_local *local, 1260 struct sta_info *sta, 1261 struct station_parameters *params) 1262 { 1263 int ret = 0; 1264 struct ieee80211_supported_band *sband; 1265 struct ieee80211_sub_if_data *sdata = sta->sdata; 1266 u32 mask, set; 1267 1268 sband = ieee80211_get_sband(sdata); 1269 if (!sband) 1270 return -EINVAL; 1271 1272 mask = params->sta_flags_mask; 1273 set = params->sta_flags_set; 1274 1275 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1276 /* 1277 * In mesh mode, ASSOCIATED isn't part of the nl80211 1278 * API but must follow AUTHENTICATED for driver state. 1279 */ 1280 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1281 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1282 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1283 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1284 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1285 /* 1286 * TDLS -- everything follows authorized, but 1287 * only becoming authorized is possible, not 1288 * going back 1289 */ 1290 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1291 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1292 BIT(NL80211_STA_FLAG_ASSOCIATED); 1293 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1294 BIT(NL80211_STA_FLAG_ASSOCIATED); 1295 } 1296 } 1297 1298 if (mask & BIT(NL80211_STA_FLAG_WME) && 1299 local->hw.queues >= IEEE80211_NUM_ACS) 1300 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1301 1302 /* auth flags will be set later for TDLS, 1303 * and for unassociated stations that move to assocaited */ 1304 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1305 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1306 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1307 ret = sta_apply_auth_flags(local, sta, mask, set); 1308 if (ret) 1309 return ret; 1310 } 1311 1312 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1313 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1314 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1315 else 1316 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1317 } 1318 1319 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1320 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1321 if (set & BIT(NL80211_STA_FLAG_MFP)) 1322 set_sta_flag(sta, WLAN_STA_MFP); 1323 else 1324 clear_sta_flag(sta, WLAN_STA_MFP); 1325 } 1326 1327 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1328 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1329 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1330 else 1331 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1332 } 1333 1334 /* mark TDLS channel switch support, if the AP allows it */ 1335 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1336 !sdata->u.mgd.tdls_chan_switch_prohibited && 1337 params->ext_capab_len >= 4 && 1338 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1339 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1340 1341 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1342 !sdata->u.mgd.tdls_wider_bw_prohibited && 1343 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1344 params->ext_capab_len >= 8 && 1345 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1346 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1347 1348 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1349 sta->sta.uapsd_queues = params->uapsd_queues; 1350 sta->sta.max_sp = params->max_sp; 1351 } 1352 1353 /* The sender might not have sent the last bit, consider it to be 0 */ 1354 if (params->ext_capab_len >= 8) { 1355 u8 val = (params->ext_capab[7] & 1356 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1357 1358 /* we did get all the bits, take the MSB as well */ 1359 if (params->ext_capab_len >= 9) { 1360 u8 val_msb = params->ext_capab[8] & 1361 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1362 val_msb <<= 1; 1363 val |= val_msb; 1364 } 1365 1366 switch (val) { 1367 case 1: 1368 sta->sta.max_amsdu_subframes = 32; 1369 break; 1370 case 2: 1371 sta->sta.max_amsdu_subframes = 16; 1372 break; 1373 case 3: 1374 sta->sta.max_amsdu_subframes = 8; 1375 break; 1376 default: 1377 sta->sta.max_amsdu_subframes = 0; 1378 } 1379 } 1380 1381 /* 1382 * cfg80211 validates this (1-2007) and allows setting the AID 1383 * only when creating a new station entry 1384 */ 1385 if (params->aid) 1386 sta->sta.aid = params->aid; 1387 1388 /* 1389 * Some of the following updates would be racy if called on an 1390 * existing station, via ieee80211_change_station(). However, 1391 * all such changes are rejected by cfg80211 except for updates 1392 * changing the supported rates on an existing but not yet used 1393 * TDLS peer. 1394 */ 1395 1396 if (params->listen_interval >= 0) 1397 sta->listen_interval = params->listen_interval; 1398 1399 if (params->supported_rates) { 1400 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1401 sband, params->supported_rates, 1402 params->supported_rates_len, 1403 &sta->sta.supp_rates[sband->band]); 1404 } 1405 1406 if (params->ht_capa) 1407 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1408 params->ht_capa, sta); 1409 1410 /* VHT can override some HT caps such as the A-MSDU max length */ 1411 if (params->vht_capa) 1412 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1413 params->vht_capa, sta); 1414 1415 if (params->he_capa) 1416 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1417 (void *)params->he_capa, 1418 params->he_capa_len, sta); 1419 1420 if (params->opmode_notif_used) { 1421 /* returned value is only needed for rc update, but the 1422 * rc isn't initialized here yet, so ignore it 1423 */ 1424 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1425 sband->band); 1426 } 1427 1428 if (params->support_p2p_ps >= 0) 1429 sta->sta.support_p2p_ps = params->support_p2p_ps; 1430 1431 if (ieee80211_vif_is_mesh(&sdata->vif)) 1432 sta_apply_mesh_params(local, sta, params); 1433 1434 /* set the STA state after all sta info from usermode has been set */ 1435 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1436 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1437 ret = sta_apply_auth_flags(local, sta, mask, set); 1438 if (ret) 1439 return ret; 1440 } 1441 1442 return 0; 1443 } 1444 1445 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1446 const u8 *mac, 1447 struct station_parameters *params) 1448 { 1449 struct ieee80211_local *local = wiphy_priv(wiphy); 1450 struct sta_info *sta; 1451 struct ieee80211_sub_if_data *sdata; 1452 int err; 1453 int layer2_update; 1454 1455 if (params->vlan) { 1456 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1457 1458 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1459 sdata->vif.type != NL80211_IFTYPE_AP) 1460 return -EINVAL; 1461 } else 1462 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1463 1464 if (ether_addr_equal(mac, sdata->vif.addr)) 1465 return -EINVAL; 1466 1467 if (is_multicast_ether_addr(mac)) 1468 return -EINVAL; 1469 1470 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1471 if (!sta) 1472 return -ENOMEM; 1473 1474 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1475 sta->sta.tdls = true; 1476 1477 err = sta_apply_parameters(local, sta, params); 1478 if (err) { 1479 sta_info_free(local, sta); 1480 return err; 1481 } 1482 1483 /* 1484 * for TDLS and for unassociated station, rate control should be 1485 * initialized only when rates are known and station is marked 1486 * authorized/associated 1487 */ 1488 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1489 test_sta_flag(sta, WLAN_STA_ASSOC)) 1490 rate_control_rate_init(sta); 1491 1492 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1493 sdata->vif.type == NL80211_IFTYPE_AP; 1494 1495 err = sta_info_insert_rcu(sta); 1496 if (err) { 1497 rcu_read_unlock(); 1498 return err; 1499 } 1500 1501 if (layer2_update) 1502 ieee80211_send_layer2_update(sta); 1503 1504 rcu_read_unlock(); 1505 1506 return 0; 1507 } 1508 1509 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1510 struct station_del_parameters *params) 1511 { 1512 struct ieee80211_sub_if_data *sdata; 1513 1514 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1515 1516 if (params->mac) 1517 return sta_info_destroy_addr_bss(sdata, params->mac); 1518 1519 sta_info_flush(sdata); 1520 return 0; 1521 } 1522 1523 static int ieee80211_change_station(struct wiphy *wiphy, 1524 struct net_device *dev, const u8 *mac, 1525 struct station_parameters *params) 1526 { 1527 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1528 struct ieee80211_local *local = wiphy_priv(wiphy); 1529 struct sta_info *sta; 1530 struct ieee80211_sub_if_data *vlansdata; 1531 enum cfg80211_station_type statype; 1532 int err; 1533 1534 mutex_lock(&local->sta_mtx); 1535 1536 sta = sta_info_get_bss(sdata, mac); 1537 if (!sta) { 1538 err = -ENOENT; 1539 goto out_err; 1540 } 1541 1542 switch (sdata->vif.type) { 1543 case NL80211_IFTYPE_MESH_POINT: 1544 if (sdata->u.mesh.user_mpm) 1545 statype = CFG80211_STA_MESH_PEER_USER; 1546 else 1547 statype = CFG80211_STA_MESH_PEER_KERNEL; 1548 break; 1549 case NL80211_IFTYPE_ADHOC: 1550 statype = CFG80211_STA_IBSS; 1551 break; 1552 case NL80211_IFTYPE_STATION: 1553 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1554 statype = CFG80211_STA_AP_STA; 1555 break; 1556 } 1557 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1558 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1559 else 1560 statype = CFG80211_STA_TDLS_PEER_SETUP; 1561 break; 1562 case NL80211_IFTYPE_AP: 1563 case NL80211_IFTYPE_AP_VLAN: 1564 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1565 statype = CFG80211_STA_AP_CLIENT; 1566 else 1567 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1568 break; 1569 default: 1570 err = -EOPNOTSUPP; 1571 goto out_err; 1572 } 1573 1574 err = cfg80211_check_station_change(wiphy, params, statype); 1575 if (err) 1576 goto out_err; 1577 1578 if (params->vlan && params->vlan != sta->sdata->dev) { 1579 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1580 1581 if (params->vlan->ieee80211_ptr->use_4addr) { 1582 if (vlansdata->u.vlan.sta) { 1583 err = -EBUSY; 1584 goto out_err; 1585 } 1586 1587 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1588 __ieee80211_check_fast_rx_iface(vlansdata); 1589 } 1590 1591 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1592 sta->sdata->u.vlan.sta) 1593 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1594 1595 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1596 ieee80211_vif_dec_num_mcast(sta->sdata); 1597 1598 sta->sdata = vlansdata; 1599 ieee80211_check_fast_xmit(sta); 1600 1601 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1602 ieee80211_vif_inc_num_mcast(sta->sdata); 1603 1604 ieee80211_send_layer2_update(sta); 1605 } 1606 1607 err = sta_apply_parameters(local, sta, params); 1608 if (err) 1609 goto out_err; 1610 1611 mutex_unlock(&local->sta_mtx); 1612 1613 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1614 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1615 sta->known_smps_mode != sta->sdata->bss->req_smps && 1616 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1617 sta_info_tx_streams(sta) != 1) { 1618 ht_dbg(sta->sdata, 1619 "%pM just authorized and MIMO capable - update SMPS\n", 1620 sta->sta.addr); 1621 ieee80211_send_smps_action(sta->sdata, 1622 sta->sdata->bss->req_smps, 1623 sta->sta.addr, 1624 sta->sdata->vif.bss_conf.bssid); 1625 } 1626 1627 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1628 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1629 ieee80211_recalc_ps(local); 1630 ieee80211_recalc_ps_vif(sdata); 1631 } 1632 1633 return 0; 1634 out_err: 1635 mutex_unlock(&local->sta_mtx); 1636 return err; 1637 } 1638 1639 #ifdef CONFIG_MAC80211_MESH 1640 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1641 const u8 *dst, const u8 *next_hop) 1642 { 1643 struct ieee80211_sub_if_data *sdata; 1644 struct mesh_path *mpath; 1645 struct sta_info *sta; 1646 1647 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1648 1649 rcu_read_lock(); 1650 sta = sta_info_get(sdata, next_hop); 1651 if (!sta) { 1652 rcu_read_unlock(); 1653 return -ENOENT; 1654 } 1655 1656 mpath = mesh_path_add(sdata, dst); 1657 if (IS_ERR(mpath)) { 1658 rcu_read_unlock(); 1659 return PTR_ERR(mpath); 1660 } 1661 1662 mesh_path_fix_nexthop(mpath, sta); 1663 1664 rcu_read_unlock(); 1665 return 0; 1666 } 1667 1668 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1669 const u8 *dst) 1670 { 1671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1672 1673 if (dst) 1674 return mesh_path_del(sdata, dst); 1675 1676 mesh_path_flush_by_iface(sdata); 1677 return 0; 1678 } 1679 1680 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1681 const u8 *dst, const u8 *next_hop) 1682 { 1683 struct ieee80211_sub_if_data *sdata; 1684 struct mesh_path *mpath; 1685 struct sta_info *sta; 1686 1687 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1688 1689 rcu_read_lock(); 1690 1691 sta = sta_info_get(sdata, next_hop); 1692 if (!sta) { 1693 rcu_read_unlock(); 1694 return -ENOENT; 1695 } 1696 1697 mpath = mesh_path_lookup(sdata, dst); 1698 if (!mpath) { 1699 rcu_read_unlock(); 1700 return -ENOENT; 1701 } 1702 1703 mesh_path_fix_nexthop(mpath, sta); 1704 1705 rcu_read_unlock(); 1706 return 0; 1707 } 1708 1709 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1710 struct mpath_info *pinfo) 1711 { 1712 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1713 1714 if (next_hop_sta) 1715 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1716 else 1717 eth_zero_addr(next_hop); 1718 1719 memset(pinfo, 0, sizeof(*pinfo)); 1720 1721 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1722 1723 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1724 MPATH_INFO_SN | 1725 MPATH_INFO_METRIC | 1726 MPATH_INFO_EXPTIME | 1727 MPATH_INFO_DISCOVERY_TIMEOUT | 1728 MPATH_INFO_DISCOVERY_RETRIES | 1729 MPATH_INFO_FLAGS; 1730 1731 pinfo->frame_qlen = mpath->frame_queue.qlen; 1732 pinfo->sn = mpath->sn; 1733 pinfo->metric = mpath->metric; 1734 if (time_before(jiffies, mpath->exp_time)) 1735 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1736 pinfo->discovery_timeout = 1737 jiffies_to_msecs(mpath->discovery_timeout); 1738 pinfo->discovery_retries = mpath->discovery_retries; 1739 if (mpath->flags & MESH_PATH_ACTIVE) 1740 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1741 if (mpath->flags & MESH_PATH_RESOLVING) 1742 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1743 if (mpath->flags & MESH_PATH_SN_VALID) 1744 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1745 if (mpath->flags & MESH_PATH_FIXED) 1746 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1747 if (mpath->flags & MESH_PATH_RESOLVED) 1748 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1749 } 1750 1751 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1752 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1753 1754 { 1755 struct ieee80211_sub_if_data *sdata; 1756 struct mesh_path *mpath; 1757 1758 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1759 1760 rcu_read_lock(); 1761 mpath = mesh_path_lookup(sdata, dst); 1762 if (!mpath) { 1763 rcu_read_unlock(); 1764 return -ENOENT; 1765 } 1766 memcpy(dst, mpath->dst, ETH_ALEN); 1767 mpath_set_pinfo(mpath, next_hop, pinfo); 1768 rcu_read_unlock(); 1769 return 0; 1770 } 1771 1772 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1773 int idx, u8 *dst, u8 *next_hop, 1774 struct mpath_info *pinfo) 1775 { 1776 struct ieee80211_sub_if_data *sdata; 1777 struct mesh_path *mpath; 1778 1779 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1780 1781 rcu_read_lock(); 1782 mpath = mesh_path_lookup_by_idx(sdata, idx); 1783 if (!mpath) { 1784 rcu_read_unlock(); 1785 return -ENOENT; 1786 } 1787 memcpy(dst, mpath->dst, ETH_ALEN); 1788 mpath_set_pinfo(mpath, next_hop, pinfo); 1789 rcu_read_unlock(); 1790 return 0; 1791 } 1792 1793 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1794 struct mpath_info *pinfo) 1795 { 1796 memset(pinfo, 0, sizeof(*pinfo)); 1797 memcpy(mpp, mpath->mpp, ETH_ALEN); 1798 1799 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1800 } 1801 1802 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1803 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1804 1805 { 1806 struct ieee80211_sub_if_data *sdata; 1807 struct mesh_path *mpath; 1808 1809 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1810 1811 rcu_read_lock(); 1812 mpath = mpp_path_lookup(sdata, dst); 1813 if (!mpath) { 1814 rcu_read_unlock(); 1815 return -ENOENT; 1816 } 1817 memcpy(dst, mpath->dst, ETH_ALEN); 1818 mpp_set_pinfo(mpath, mpp, pinfo); 1819 rcu_read_unlock(); 1820 return 0; 1821 } 1822 1823 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1824 int idx, u8 *dst, u8 *mpp, 1825 struct mpath_info *pinfo) 1826 { 1827 struct ieee80211_sub_if_data *sdata; 1828 struct mesh_path *mpath; 1829 1830 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1831 1832 rcu_read_lock(); 1833 mpath = mpp_path_lookup_by_idx(sdata, idx); 1834 if (!mpath) { 1835 rcu_read_unlock(); 1836 return -ENOENT; 1837 } 1838 memcpy(dst, mpath->dst, ETH_ALEN); 1839 mpp_set_pinfo(mpath, mpp, pinfo); 1840 rcu_read_unlock(); 1841 return 0; 1842 } 1843 1844 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1845 struct net_device *dev, 1846 struct mesh_config *conf) 1847 { 1848 struct ieee80211_sub_if_data *sdata; 1849 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1850 1851 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1852 return 0; 1853 } 1854 1855 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1856 { 1857 return (mask >> (parm-1)) & 0x1; 1858 } 1859 1860 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1861 const struct mesh_setup *setup) 1862 { 1863 u8 *new_ie; 1864 const u8 *old_ie; 1865 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1866 struct ieee80211_sub_if_data, u.mesh); 1867 1868 /* allocate information elements */ 1869 new_ie = NULL; 1870 old_ie = ifmsh->ie; 1871 1872 if (setup->ie_len) { 1873 new_ie = kmemdup(setup->ie, setup->ie_len, 1874 GFP_KERNEL); 1875 if (!new_ie) 1876 return -ENOMEM; 1877 } 1878 ifmsh->ie_len = setup->ie_len; 1879 ifmsh->ie = new_ie; 1880 kfree(old_ie); 1881 1882 /* now copy the rest of the setup parameters */ 1883 ifmsh->mesh_id_len = setup->mesh_id_len; 1884 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1885 ifmsh->mesh_sp_id = setup->sync_method; 1886 ifmsh->mesh_pp_id = setup->path_sel_proto; 1887 ifmsh->mesh_pm_id = setup->path_metric; 1888 ifmsh->user_mpm = setup->user_mpm; 1889 ifmsh->mesh_auth_id = setup->auth_id; 1890 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1891 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1892 if (setup->is_authenticated) 1893 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1894 if (setup->is_secure) 1895 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1896 1897 /* mcast rate setting in Mesh Node */ 1898 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1899 sizeof(setup->mcast_rate)); 1900 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1901 1902 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1903 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1904 1905 return 0; 1906 } 1907 1908 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1909 struct net_device *dev, u32 mask, 1910 const struct mesh_config *nconf) 1911 { 1912 struct mesh_config *conf; 1913 struct ieee80211_sub_if_data *sdata; 1914 struct ieee80211_if_mesh *ifmsh; 1915 1916 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1917 ifmsh = &sdata->u.mesh; 1918 1919 /* Set the config options which we are interested in setting */ 1920 conf = &(sdata->u.mesh.mshcfg); 1921 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1922 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1923 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1924 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1925 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1926 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1927 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1928 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1929 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1930 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1931 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1932 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1933 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1934 conf->element_ttl = nconf->element_ttl; 1935 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1936 if (ifmsh->user_mpm) 1937 return -EBUSY; 1938 conf->auto_open_plinks = nconf->auto_open_plinks; 1939 } 1940 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1941 conf->dot11MeshNbrOffsetMaxNeighbor = 1942 nconf->dot11MeshNbrOffsetMaxNeighbor; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1944 conf->dot11MeshHWMPmaxPREQretries = 1945 nconf->dot11MeshHWMPmaxPREQretries; 1946 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1947 conf->path_refresh_time = nconf->path_refresh_time; 1948 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1949 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1950 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1951 conf->dot11MeshHWMPactivePathTimeout = 1952 nconf->dot11MeshHWMPactivePathTimeout; 1953 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1954 conf->dot11MeshHWMPpreqMinInterval = 1955 nconf->dot11MeshHWMPpreqMinInterval; 1956 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1957 conf->dot11MeshHWMPperrMinInterval = 1958 nconf->dot11MeshHWMPperrMinInterval; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1960 mask)) 1961 conf->dot11MeshHWMPnetDiameterTraversalTime = 1962 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1963 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1964 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1965 ieee80211_mesh_root_setup(ifmsh); 1966 } 1967 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1968 /* our current gate announcement implementation rides on root 1969 * announcements, so require this ifmsh to also be a root node 1970 * */ 1971 if (nconf->dot11MeshGateAnnouncementProtocol && 1972 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1973 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1974 ieee80211_mesh_root_setup(ifmsh); 1975 } 1976 conf->dot11MeshGateAnnouncementProtocol = 1977 nconf->dot11MeshGateAnnouncementProtocol; 1978 } 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1980 conf->dot11MeshHWMPRannInterval = 1981 nconf->dot11MeshHWMPRannInterval; 1982 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1983 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1984 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1985 /* our RSSI threshold implementation is supported only for 1986 * devices that report signal in dBm. 1987 */ 1988 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 1989 return -ENOTSUPP; 1990 conf->rssi_threshold = nconf->rssi_threshold; 1991 } 1992 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1993 conf->ht_opmode = nconf->ht_opmode; 1994 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1995 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1996 } 1997 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1998 conf->dot11MeshHWMPactivePathToRootTimeout = 1999 nconf->dot11MeshHWMPactivePathToRootTimeout; 2000 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2001 conf->dot11MeshHWMProotInterval = 2002 nconf->dot11MeshHWMProotInterval; 2003 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2004 conf->dot11MeshHWMPconfirmationInterval = 2005 nconf->dot11MeshHWMPconfirmationInterval; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2007 conf->power_mode = nconf->power_mode; 2008 ieee80211_mps_local_status_update(sdata); 2009 } 2010 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2011 conf->dot11MeshAwakeWindowDuration = 2012 nconf->dot11MeshAwakeWindowDuration; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2014 conf->plink_timeout = nconf->plink_timeout; 2015 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2016 return 0; 2017 } 2018 2019 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2020 const struct mesh_config *conf, 2021 const struct mesh_setup *setup) 2022 { 2023 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2024 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2025 int err; 2026 2027 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2028 err = copy_mesh_setup(ifmsh, setup); 2029 if (err) 2030 return err; 2031 2032 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2033 2034 /* can mesh use other SMPS modes? */ 2035 sdata->smps_mode = IEEE80211_SMPS_OFF; 2036 sdata->needed_rx_chains = sdata->local->rx_chains; 2037 2038 mutex_lock(&sdata->local->mtx); 2039 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2040 IEEE80211_CHANCTX_SHARED); 2041 mutex_unlock(&sdata->local->mtx); 2042 if (err) 2043 return err; 2044 2045 return ieee80211_start_mesh(sdata); 2046 } 2047 2048 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2049 { 2050 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2051 2052 ieee80211_stop_mesh(sdata); 2053 mutex_lock(&sdata->local->mtx); 2054 ieee80211_vif_release_channel(sdata); 2055 mutex_unlock(&sdata->local->mtx); 2056 2057 return 0; 2058 } 2059 #endif 2060 2061 static int ieee80211_change_bss(struct wiphy *wiphy, 2062 struct net_device *dev, 2063 struct bss_parameters *params) 2064 { 2065 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2066 struct ieee80211_supported_band *sband; 2067 u32 changed = 0; 2068 2069 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2070 return -ENOENT; 2071 2072 sband = ieee80211_get_sband(sdata); 2073 if (!sband) 2074 return -EINVAL; 2075 2076 if (params->use_cts_prot >= 0) { 2077 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2078 changed |= BSS_CHANGED_ERP_CTS_PROT; 2079 } 2080 if (params->use_short_preamble >= 0) { 2081 sdata->vif.bss_conf.use_short_preamble = 2082 params->use_short_preamble; 2083 changed |= BSS_CHANGED_ERP_PREAMBLE; 2084 } 2085 2086 if (!sdata->vif.bss_conf.use_short_slot && 2087 sband->band == NL80211_BAND_5GHZ) { 2088 sdata->vif.bss_conf.use_short_slot = true; 2089 changed |= BSS_CHANGED_ERP_SLOT; 2090 } 2091 2092 if (params->use_short_slot_time >= 0) { 2093 sdata->vif.bss_conf.use_short_slot = 2094 params->use_short_slot_time; 2095 changed |= BSS_CHANGED_ERP_SLOT; 2096 } 2097 2098 if (params->basic_rates) { 2099 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2100 wiphy->bands[sband->band], 2101 params->basic_rates, 2102 params->basic_rates_len, 2103 &sdata->vif.bss_conf.basic_rates); 2104 changed |= BSS_CHANGED_BASIC_RATES; 2105 ieee80211_check_rate_mask(sdata); 2106 } 2107 2108 if (params->ap_isolate >= 0) { 2109 if (params->ap_isolate) 2110 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2111 else 2112 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2113 ieee80211_check_fast_rx_iface(sdata); 2114 } 2115 2116 if (params->ht_opmode >= 0) { 2117 sdata->vif.bss_conf.ht_operation_mode = 2118 (u16) params->ht_opmode; 2119 changed |= BSS_CHANGED_HT; 2120 } 2121 2122 if (params->p2p_ctwindow >= 0) { 2123 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2124 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2125 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2126 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2127 changed |= BSS_CHANGED_P2P_PS; 2128 } 2129 2130 if (params->p2p_opp_ps > 0) { 2131 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2132 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2133 changed |= BSS_CHANGED_P2P_PS; 2134 } else if (params->p2p_opp_ps == 0) { 2135 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2136 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2137 changed |= BSS_CHANGED_P2P_PS; 2138 } 2139 2140 ieee80211_bss_info_change_notify(sdata, changed); 2141 2142 return 0; 2143 } 2144 2145 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2146 struct net_device *dev, 2147 struct ieee80211_txq_params *params) 2148 { 2149 struct ieee80211_local *local = wiphy_priv(wiphy); 2150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2151 struct ieee80211_tx_queue_params p; 2152 2153 if (!local->ops->conf_tx) 2154 return -EOPNOTSUPP; 2155 2156 if (local->hw.queues < IEEE80211_NUM_ACS) 2157 return -EOPNOTSUPP; 2158 2159 memset(&p, 0, sizeof(p)); 2160 p.aifs = params->aifs; 2161 p.cw_max = params->cwmax; 2162 p.cw_min = params->cwmin; 2163 p.txop = params->txop; 2164 2165 /* 2166 * Setting tx queue params disables u-apsd because it's only 2167 * called in master mode. 2168 */ 2169 p.uapsd = false; 2170 2171 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2172 2173 sdata->tx_conf[params->ac] = p; 2174 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2175 wiphy_debug(local->hw.wiphy, 2176 "failed to set TX queue parameters for AC %d\n", 2177 params->ac); 2178 return -EINVAL; 2179 } 2180 2181 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2182 2183 return 0; 2184 } 2185 2186 #ifdef CONFIG_PM 2187 static int ieee80211_suspend(struct wiphy *wiphy, 2188 struct cfg80211_wowlan *wowlan) 2189 { 2190 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2191 } 2192 2193 static int ieee80211_resume(struct wiphy *wiphy) 2194 { 2195 return __ieee80211_resume(wiphy_priv(wiphy)); 2196 } 2197 #else 2198 #define ieee80211_suspend NULL 2199 #define ieee80211_resume NULL 2200 #endif 2201 2202 static int ieee80211_scan(struct wiphy *wiphy, 2203 struct cfg80211_scan_request *req) 2204 { 2205 struct ieee80211_sub_if_data *sdata; 2206 2207 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2208 2209 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2210 case NL80211_IFTYPE_STATION: 2211 case NL80211_IFTYPE_ADHOC: 2212 case NL80211_IFTYPE_MESH_POINT: 2213 case NL80211_IFTYPE_P2P_CLIENT: 2214 case NL80211_IFTYPE_P2P_DEVICE: 2215 break; 2216 case NL80211_IFTYPE_P2P_GO: 2217 if (sdata->local->ops->hw_scan) 2218 break; 2219 /* 2220 * FIXME: implement NoA while scanning in software, 2221 * for now fall through to allow scanning only when 2222 * beaconing hasn't been configured yet 2223 */ 2224 /* fall through */ 2225 case NL80211_IFTYPE_AP: 2226 /* 2227 * If the scan has been forced (and the driver supports 2228 * forcing), don't care about being beaconing already. 2229 * This will create problems to the attached stations (e.g. all 2230 * the frames sent while scanning on other channel will be 2231 * lost) 2232 */ 2233 if (sdata->u.ap.beacon && 2234 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2235 !(req->flags & NL80211_SCAN_FLAG_AP))) 2236 return -EOPNOTSUPP; 2237 break; 2238 case NL80211_IFTYPE_NAN: 2239 default: 2240 return -EOPNOTSUPP; 2241 } 2242 2243 return ieee80211_request_scan(sdata, req); 2244 } 2245 2246 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2247 { 2248 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2249 } 2250 2251 static int 2252 ieee80211_sched_scan_start(struct wiphy *wiphy, 2253 struct net_device *dev, 2254 struct cfg80211_sched_scan_request *req) 2255 { 2256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2257 2258 if (!sdata->local->ops->sched_scan_start) 2259 return -EOPNOTSUPP; 2260 2261 return ieee80211_request_sched_scan_start(sdata, req); 2262 } 2263 2264 static int 2265 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2266 u64 reqid) 2267 { 2268 struct ieee80211_local *local = wiphy_priv(wiphy); 2269 2270 if (!local->ops->sched_scan_stop) 2271 return -EOPNOTSUPP; 2272 2273 return ieee80211_request_sched_scan_stop(local); 2274 } 2275 2276 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2277 struct cfg80211_auth_request *req) 2278 { 2279 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2280 } 2281 2282 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2283 struct cfg80211_assoc_request *req) 2284 { 2285 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2286 } 2287 2288 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2289 struct cfg80211_deauth_request *req) 2290 { 2291 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2292 } 2293 2294 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2295 struct cfg80211_disassoc_request *req) 2296 { 2297 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2298 } 2299 2300 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2301 struct cfg80211_ibss_params *params) 2302 { 2303 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2304 } 2305 2306 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2307 { 2308 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2309 } 2310 2311 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2312 struct ocb_setup *setup) 2313 { 2314 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2315 } 2316 2317 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2318 { 2319 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2320 } 2321 2322 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2323 int rate[NUM_NL80211_BANDS]) 2324 { 2325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2326 2327 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2328 sizeof(int) * NUM_NL80211_BANDS); 2329 2330 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2331 2332 return 0; 2333 } 2334 2335 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2336 { 2337 struct ieee80211_local *local = wiphy_priv(wiphy); 2338 int err; 2339 2340 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2341 ieee80211_check_fast_xmit_all(local); 2342 2343 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2344 2345 if (err) { 2346 ieee80211_check_fast_xmit_all(local); 2347 return err; 2348 } 2349 } 2350 2351 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2352 (changed & WIPHY_PARAM_DYN_ACK)) { 2353 s16 coverage_class; 2354 2355 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2356 wiphy->coverage_class : -1; 2357 err = drv_set_coverage_class(local, coverage_class); 2358 2359 if (err) 2360 return err; 2361 } 2362 2363 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2364 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2365 2366 if (err) 2367 return err; 2368 } 2369 2370 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2371 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2372 return -EINVAL; 2373 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2374 } 2375 if (changed & WIPHY_PARAM_RETRY_LONG) { 2376 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2377 return -EINVAL; 2378 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2379 } 2380 if (changed & 2381 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2382 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2383 2384 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2385 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2386 WIPHY_PARAM_TXQ_QUANTUM)) 2387 ieee80211_txq_set_params(local); 2388 2389 return 0; 2390 } 2391 2392 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2393 struct wireless_dev *wdev, 2394 enum nl80211_tx_power_setting type, int mbm) 2395 { 2396 struct ieee80211_local *local = wiphy_priv(wiphy); 2397 struct ieee80211_sub_if_data *sdata; 2398 enum nl80211_tx_power_setting txp_type = type; 2399 bool update_txp_type = false; 2400 bool has_monitor = false; 2401 2402 if (wdev) { 2403 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2404 2405 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2406 sdata = rtnl_dereference(local->monitor_sdata); 2407 if (!sdata) 2408 return -EOPNOTSUPP; 2409 } 2410 2411 switch (type) { 2412 case NL80211_TX_POWER_AUTOMATIC: 2413 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2414 txp_type = NL80211_TX_POWER_LIMITED; 2415 break; 2416 case NL80211_TX_POWER_LIMITED: 2417 case NL80211_TX_POWER_FIXED: 2418 if (mbm < 0 || (mbm % 100)) 2419 return -EOPNOTSUPP; 2420 sdata->user_power_level = MBM_TO_DBM(mbm); 2421 break; 2422 } 2423 2424 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2425 update_txp_type = true; 2426 sdata->vif.bss_conf.txpower_type = txp_type; 2427 } 2428 2429 ieee80211_recalc_txpower(sdata, update_txp_type); 2430 2431 return 0; 2432 } 2433 2434 switch (type) { 2435 case NL80211_TX_POWER_AUTOMATIC: 2436 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2437 txp_type = NL80211_TX_POWER_LIMITED; 2438 break; 2439 case NL80211_TX_POWER_LIMITED: 2440 case NL80211_TX_POWER_FIXED: 2441 if (mbm < 0 || (mbm % 100)) 2442 return -EOPNOTSUPP; 2443 local->user_power_level = MBM_TO_DBM(mbm); 2444 break; 2445 } 2446 2447 mutex_lock(&local->iflist_mtx); 2448 list_for_each_entry(sdata, &local->interfaces, list) { 2449 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2450 has_monitor = true; 2451 continue; 2452 } 2453 sdata->user_power_level = local->user_power_level; 2454 if (txp_type != sdata->vif.bss_conf.txpower_type) 2455 update_txp_type = true; 2456 sdata->vif.bss_conf.txpower_type = txp_type; 2457 } 2458 list_for_each_entry(sdata, &local->interfaces, list) { 2459 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2460 continue; 2461 ieee80211_recalc_txpower(sdata, update_txp_type); 2462 } 2463 mutex_unlock(&local->iflist_mtx); 2464 2465 if (has_monitor) { 2466 sdata = rtnl_dereference(local->monitor_sdata); 2467 if (sdata) { 2468 sdata->user_power_level = local->user_power_level; 2469 if (txp_type != sdata->vif.bss_conf.txpower_type) 2470 update_txp_type = true; 2471 sdata->vif.bss_conf.txpower_type = txp_type; 2472 2473 ieee80211_recalc_txpower(sdata, update_txp_type); 2474 } 2475 } 2476 2477 return 0; 2478 } 2479 2480 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2481 struct wireless_dev *wdev, 2482 int *dbm) 2483 { 2484 struct ieee80211_local *local = wiphy_priv(wiphy); 2485 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2486 2487 if (local->ops->get_txpower) 2488 return drv_get_txpower(local, sdata, dbm); 2489 2490 if (!local->use_chanctx) 2491 *dbm = local->hw.conf.power_level; 2492 else 2493 *dbm = sdata->vif.bss_conf.txpower; 2494 2495 return 0; 2496 } 2497 2498 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2499 const u8 *addr) 2500 { 2501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2502 2503 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2504 2505 return 0; 2506 } 2507 2508 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2509 { 2510 struct ieee80211_local *local = wiphy_priv(wiphy); 2511 2512 drv_rfkill_poll(local); 2513 } 2514 2515 #ifdef CONFIG_NL80211_TESTMODE 2516 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2517 struct wireless_dev *wdev, 2518 void *data, int len) 2519 { 2520 struct ieee80211_local *local = wiphy_priv(wiphy); 2521 struct ieee80211_vif *vif = NULL; 2522 2523 if (!local->ops->testmode_cmd) 2524 return -EOPNOTSUPP; 2525 2526 if (wdev) { 2527 struct ieee80211_sub_if_data *sdata; 2528 2529 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2530 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2531 vif = &sdata->vif; 2532 } 2533 2534 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2535 } 2536 2537 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2538 struct sk_buff *skb, 2539 struct netlink_callback *cb, 2540 void *data, int len) 2541 { 2542 struct ieee80211_local *local = wiphy_priv(wiphy); 2543 2544 if (!local->ops->testmode_dump) 2545 return -EOPNOTSUPP; 2546 2547 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2548 } 2549 #endif 2550 2551 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2552 enum ieee80211_smps_mode smps_mode) 2553 { 2554 struct sta_info *sta; 2555 enum ieee80211_smps_mode old_req; 2556 2557 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2558 return -EINVAL; 2559 2560 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2561 return 0; 2562 2563 old_req = sdata->u.ap.req_smps; 2564 sdata->u.ap.req_smps = smps_mode; 2565 2566 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2567 if (old_req == smps_mode || 2568 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2569 return 0; 2570 2571 ht_dbg(sdata, 2572 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2573 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2574 2575 mutex_lock(&sdata->local->sta_mtx); 2576 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2577 /* 2578 * Only stations associated to our AP and 2579 * associated VLANs 2580 */ 2581 if (sta->sdata->bss != &sdata->u.ap) 2582 continue; 2583 2584 /* This station doesn't support MIMO - skip it */ 2585 if (sta_info_tx_streams(sta) == 1) 2586 continue; 2587 2588 /* 2589 * Don't wake up a STA just to send the action frame 2590 * unless we are getting more restrictive. 2591 */ 2592 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2593 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2594 smps_mode)) { 2595 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2596 sta->sta.addr); 2597 continue; 2598 } 2599 2600 /* 2601 * If the STA is not authorized, wait until it gets 2602 * authorized and the action frame will be sent then. 2603 */ 2604 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2605 continue; 2606 2607 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2608 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2609 sdata->vif.bss_conf.bssid); 2610 } 2611 mutex_unlock(&sdata->local->sta_mtx); 2612 2613 sdata->smps_mode = smps_mode; 2614 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2615 2616 return 0; 2617 } 2618 2619 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2620 enum ieee80211_smps_mode smps_mode) 2621 { 2622 const u8 *ap; 2623 enum ieee80211_smps_mode old_req; 2624 int err; 2625 struct sta_info *sta; 2626 bool tdls_peer_found = false; 2627 2628 lockdep_assert_held(&sdata->wdev.mtx); 2629 2630 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2631 return -EINVAL; 2632 2633 old_req = sdata->u.mgd.req_smps; 2634 sdata->u.mgd.req_smps = smps_mode; 2635 2636 if (old_req == smps_mode && 2637 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2638 return 0; 2639 2640 /* 2641 * If not associated, or current association is not an HT 2642 * association, there's no need to do anything, just store 2643 * the new value until we associate. 2644 */ 2645 if (!sdata->u.mgd.associated || 2646 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2647 return 0; 2648 2649 ap = sdata->u.mgd.associated->bssid; 2650 2651 rcu_read_lock(); 2652 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2653 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2654 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2655 continue; 2656 2657 tdls_peer_found = true; 2658 break; 2659 } 2660 rcu_read_unlock(); 2661 2662 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2663 if (tdls_peer_found || !sdata->u.mgd.powersave) 2664 smps_mode = IEEE80211_SMPS_OFF; 2665 else 2666 smps_mode = IEEE80211_SMPS_DYNAMIC; 2667 } 2668 2669 /* send SM PS frame to AP */ 2670 err = ieee80211_send_smps_action(sdata, smps_mode, 2671 ap, ap); 2672 if (err) 2673 sdata->u.mgd.req_smps = old_req; 2674 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2675 ieee80211_teardown_tdls_peers(sdata); 2676 2677 return err; 2678 } 2679 2680 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2681 bool enabled, int timeout) 2682 { 2683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2684 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2685 2686 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2687 return -EOPNOTSUPP; 2688 2689 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2690 return -EOPNOTSUPP; 2691 2692 if (enabled == sdata->u.mgd.powersave && 2693 timeout == local->dynamic_ps_forced_timeout) 2694 return 0; 2695 2696 sdata->u.mgd.powersave = enabled; 2697 local->dynamic_ps_forced_timeout = timeout; 2698 2699 /* no change, but if automatic follow powersave */ 2700 sdata_lock(sdata); 2701 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2702 sdata_unlock(sdata); 2703 2704 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2705 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2706 2707 ieee80211_recalc_ps(local); 2708 ieee80211_recalc_ps_vif(sdata); 2709 ieee80211_check_fast_rx_iface(sdata); 2710 2711 return 0; 2712 } 2713 2714 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2715 struct net_device *dev, 2716 s32 rssi_thold, u32 rssi_hyst) 2717 { 2718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2719 struct ieee80211_vif *vif = &sdata->vif; 2720 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2721 2722 if (rssi_thold == bss_conf->cqm_rssi_thold && 2723 rssi_hyst == bss_conf->cqm_rssi_hyst) 2724 return 0; 2725 2726 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2727 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2728 return -EOPNOTSUPP; 2729 2730 bss_conf->cqm_rssi_thold = rssi_thold; 2731 bss_conf->cqm_rssi_hyst = rssi_hyst; 2732 bss_conf->cqm_rssi_low = 0; 2733 bss_conf->cqm_rssi_high = 0; 2734 sdata->u.mgd.last_cqm_event_signal = 0; 2735 2736 /* tell the driver upon association, unless already associated */ 2737 if (sdata->u.mgd.associated && 2738 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2739 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2740 2741 return 0; 2742 } 2743 2744 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2745 struct net_device *dev, 2746 s32 rssi_low, s32 rssi_high) 2747 { 2748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2749 struct ieee80211_vif *vif = &sdata->vif; 2750 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2751 2752 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2753 return -EOPNOTSUPP; 2754 2755 bss_conf->cqm_rssi_low = rssi_low; 2756 bss_conf->cqm_rssi_high = rssi_high; 2757 bss_conf->cqm_rssi_thold = 0; 2758 bss_conf->cqm_rssi_hyst = 0; 2759 sdata->u.mgd.last_cqm_event_signal = 0; 2760 2761 /* tell the driver upon association, unless already associated */ 2762 if (sdata->u.mgd.associated && 2763 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2764 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2765 2766 return 0; 2767 } 2768 2769 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2770 struct net_device *dev, 2771 const u8 *addr, 2772 const struct cfg80211_bitrate_mask *mask) 2773 { 2774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2775 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2776 int i, ret; 2777 2778 if (!ieee80211_sdata_running(sdata)) 2779 return -ENETDOWN; 2780 2781 /* 2782 * If active validate the setting and reject it if it doesn't leave 2783 * at least one basic rate usable, since we really have to be able 2784 * to send something, and if we're an AP we have to be able to do 2785 * so at a basic rate so that all clients can receive it. 2786 */ 2787 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2788 sdata->vif.bss_conf.chandef.chan) { 2789 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2790 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2791 2792 if (!(mask->control[band].legacy & basic_rates)) 2793 return -EINVAL; 2794 } 2795 2796 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2797 ret = drv_set_bitrate_mask(local, sdata, mask); 2798 if (ret) 2799 return ret; 2800 } 2801 2802 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2803 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2804 int j; 2805 2806 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2807 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2808 sizeof(mask->control[i].ht_mcs)); 2809 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2810 mask->control[i].vht_mcs, 2811 sizeof(mask->control[i].vht_mcs)); 2812 2813 sdata->rc_has_mcs_mask[i] = false; 2814 sdata->rc_has_vht_mcs_mask[i] = false; 2815 if (!sband) 2816 continue; 2817 2818 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2819 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2820 sdata->rc_has_mcs_mask[i] = true; 2821 break; 2822 } 2823 } 2824 2825 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2826 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2827 sdata->rc_has_vht_mcs_mask[i] = true; 2828 break; 2829 } 2830 } 2831 } 2832 2833 return 0; 2834 } 2835 2836 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2837 struct net_device *dev, 2838 struct cfg80211_chan_def *chandef, 2839 u32 cac_time_ms) 2840 { 2841 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2842 struct ieee80211_local *local = sdata->local; 2843 int err; 2844 2845 mutex_lock(&local->mtx); 2846 if (!list_empty(&local->roc_list) || local->scanning) { 2847 err = -EBUSY; 2848 goto out_unlock; 2849 } 2850 2851 /* whatever, but channel contexts should not complain about that one */ 2852 sdata->smps_mode = IEEE80211_SMPS_OFF; 2853 sdata->needed_rx_chains = local->rx_chains; 2854 2855 err = ieee80211_vif_use_channel(sdata, chandef, 2856 IEEE80211_CHANCTX_SHARED); 2857 if (err) 2858 goto out_unlock; 2859 2860 ieee80211_queue_delayed_work(&sdata->local->hw, 2861 &sdata->dfs_cac_timer_work, 2862 msecs_to_jiffies(cac_time_ms)); 2863 2864 out_unlock: 2865 mutex_unlock(&local->mtx); 2866 return err; 2867 } 2868 2869 static struct cfg80211_beacon_data * 2870 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2871 { 2872 struct cfg80211_beacon_data *new_beacon; 2873 u8 *pos; 2874 int len; 2875 2876 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2877 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2878 beacon->probe_resp_len; 2879 2880 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2881 if (!new_beacon) 2882 return NULL; 2883 2884 pos = (u8 *)(new_beacon + 1); 2885 if (beacon->head_len) { 2886 new_beacon->head_len = beacon->head_len; 2887 new_beacon->head = pos; 2888 memcpy(pos, beacon->head, beacon->head_len); 2889 pos += beacon->head_len; 2890 } 2891 if (beacon->tail_len) { 2892 new_beacon->tail_len = beacon->tail_len; 2893 new_beacon->tail = pos; 2894 memcpy(pos, beacon->tail, beacon->tail_len); 2895 pos += beacon->tail_len; 2896 } 2897 if (beacon->beacon_ies_len) { 2898 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2899 new_beacon->beacon_ies = pos; 2900 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2901 pos += beacon->beacon_ies_len; 2902 } 2903 if (beacon->proberesp_ies_len) { 2904 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2905 new_beacon->proberesp_ies = pos; 2906 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2907 pos += beacon->proberesp_ies_len; 2908 } 2909 if (beacon->assocresp_ies_len) { 2910 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2911 new_beacon->assocresp_ies = pos; 2912 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2913 pos += beacon->assocresp_ies_len; 2914 } 2915 if (beacon->probe_resp_len) { 2916 new_beacon->probe_resp_len = beacon->probe_resp_len; 2917 new_beacon->probe_resp = pos; 2918 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2919 pos += beacon->probe_resp_len; 2920 } 2921 2922 return new_beacon; 2923 } 2924 2925 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2926 { 2927 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2928 2929 ieee80211_queue_work(&sdata->local->hw, 2930 &sdata->csa_finalize_work); 2931 } 2932 EXPORT_SYMBOL(ieee80211_csa_finish); 2933 2934 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2935 u32 *changed) 2936 { 2937 int err; 2938 2939 switch (sdata->vif.type) { 2940 case NL80211_IFTYPE_AP: 2941 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2942 NULL); 2943 kfree(sdata->u.ap.next_beacon); 2944 sdata->u.ap.next_beacon = NULL; 2945 2946 if (err < 0) 2947 return err; 2948 *changed |= err; 2949 break; 2950 case NL80211_IFTYPE_ADHOC: 2951 err = ieee80211_ibss_finish_csa(sdata); 2952 if (err < 0) 2953 return err; 2954 *changed |= err; 2955 break; 2956 #ifdef CONFIG_MAC80211_MESH 2957 case NL80211_IFTYPE_MESH_POINT: 2958 err = ieee80211_mesh_finish_csa(sdata); 2959 if (err < 0) 2960 return err; 2961 *changed |= err; 2962 break; 2963 #endif 2964 default: 2965 WARN_ON(1); 2966 return -EINVAL; 2967 } 2968 2969 return 0; 2970 } 2971 2972 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2973 { 2974 struct ieee80211_local *local = sdata->local; 2975 u32 changed = 0; 2976 int err; 2977 2978 sdata_assert_lock(sdata); 2979 lockdep_assert_held(&local->mtx); 2980 lockdep_assert_held(&local->chanctx_mtx); 2981 2982 /* 2983 * using reservation isn't immediate as it may be deferred until later 2984 * with multi-vif. once reservation is complete it will re-schedule the 2985 * work with no reserved_chanctx so verify chandef to check if it 2986 * completed successfully 2987 */ 2988 2989 if (sdata->reserved_chanctx) { 2990 /* 2991 * with multi-vif csa driver may call ieee80211_csa_finish() 2992 * many times while waiting for other interfaces to use their 2993 * reservations 2994 */ 2995 if (sdata->reserved_ready) 2996 return 0; 2997 2998 return ieee80211_vif_use_reserved_context(sdata); 2999 } 3000 3001 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3002 &sdata->csa_chandef)) 3003 return -EINVAL; 3004 3005 sdata->vif.csa_active = false; 3006 3007 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3008 if (err) 3009 return err; 3010 3011 ieee80211_bss_info_change_notify(sdata, changed); 3012 3013 if (sdata->csa_block_tx) { 3014 ieee80211_wake_vif_queues(local, sdata, 3015 IEEE80211_QUEUE_STOP_REASON_CSA); 3016 sdata->csa_block_tx = false; 3017 } 3018 3019 err = drv_post_channel_switch(sdata); 3020 if (err) 3021 return err; 3022 3023 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3024 3025 return 0; 3026 } 3027 3028 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3029 { 3030 if (__ieee80211_csa_finalize(sdata)) { 3031 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3032 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3033 GFP_KERNEL); 3034 } 3035 } 3036 3037 void ieee80211_csa_finalize_work(struct work_struct *work) 3038 { 3039 struct ieee80211_sub_if_data *sdata = 3040 container_of(work, struct ieee80211_sub_if_data, 3041 csa_finalize_work); 3042 struct ieee80211_local *local = sdata->local; 3043 3044 sdata_lock(sdata); 3045 mutex_lock(&local->mtx); 3046 mutex_lock(&local->chanctx_mtx); 3047 3048 /* AP might have been stopped while waiting for the lock. */ 3049 if (!sdata->vif.csa_active) 3050 goto unlock; 3051 3052 if (!ieee80211_sdata_running(sdata)) 3053 goto unlock; 3054 3055 ieee80211_csa_finalize(sdata); 3056 3057 unlock: 3058 mutex_unlock(&local->chanctx_mtx); 3059 mutex_unlock(&local->mtx); 3060 sdata_unlock(sdata); 3061 } 3062 3063 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3064 struct cfg80211_csa_settings *params, 3065 u32 *changed) 3066 { 3067 struct ieee80211_csa_settings csa = {}; 3068 int err; 3069 3070 switch (sdata->vif.type) { 3071 case NL80211_IFTYPE_AP: 3072 sdata->u.ap.next_beacon = 3073 cfg80211_beacon_dup(¶ms->beacon_after); 3074 if (!sdata->u.ap.next_beacon) 3075 return -ENOMEM; 3076 3077 /* 3078 * With a count of 0, we don't have to wait for any 3079 * TBTT before switching, so complete the CSA 3080 * immediately. In theory, with a count == 1 we 3081 * should delay the switch until just before the next 3082 * TBTT, but that would complicate things so we switch 3083 * immediately too. If we would delay the switch 3084 * until the next TBTT, we would have to set the probe 3085 * response here. 3086 * 3087 * TODO: A channel switch with count <= 1 without 3088 * sending a CSA action frame is kind of useless, 3089 * because the clients won't know we're changing 3090 * channels. The action frame must be implemented 3091 * either here or in the userspace. 3092 */ 3093 if (params->count <= 1) 3094 break; 3095 3096 if ((params->n_counter_offsets_beacon > 3097 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3098 (params->n_counter_offsets_presp > 3099 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3100 return -EINVAL; 3101 3102 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3103 csa.counter_offsets_presp = params->counter_offsets_presp; 3104 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3105 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3106 csa.count = params->count; 3107 3108 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3109 if (err < 0) { 3110 kfree(sdata->u.ap.next_beacon); 3111 return err; 3112 } 3113 *changed |= err; 3114 3115 break; 3116 case NL80211_IFTYPE_ADHOC: 3117 if (!sdata->vif.bss_conf.ibss_joined) 3118 return -EINVAL; 3119 3120 if (params->chandef.width != sdata->u.ibss.chandef.width) 3121 return -EINVAL; 3122 3123 switch (params->chandef.width) { 3124 case NL80211_CHAN_WIDTH_40: 3125 if (cfg80211_get_chandef_type(¶ms->chandef) != 3126 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3127 return -EINVAL; 3128 case NL80211_CHAN_WIDTH_5: 3129 case NL80211_CHAN_WIDTH_10: 3130 case NL80211_CHAN_WIDTH_20_NOHT: 3131 case NL80211_CHAN_WIDTH_20: 3132 break; 3133 default: 3134 return -EINVAL; 3135 } 3136 3137 /* changes into another band are not supported */ 3138 if (sdata->u.ibss.chandef.chan->band != 3139 params->chandef.chan->band) 3140 return -EINVAL; 3141 3142 /* see comments in the NL80211_IFTYPE_AP block */ 3143 if (params->count > 1) { 3144 err = ieee80211_ibss_csa_beacon(sdata, params); 3145 if (err < 0) 3146 return err; 3147 *changed |= err; 3148 } 3149 3150 ieee80211_send_action_csa(sdata, params); 3151 3152 break; 3153 #ifdef CONFIG_MAC80211_MESH 3154 case NL80211_IFTYPE_MESH_POINT: { 3155 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3156 3157 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3158 return -EINVAL; 3159 3160 /* changes into another band are not supported */ 3161 if (sdata->vif.bss_conf.chandef.chan->band != 3162 params->chandef.chan->band) 3163 return -EINVAL; 3164 3165 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3166 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3167 if (!ifmsh->pre_value) 3168 ifmsh->pre_value = 1; 3169 else 3170 ifmsh->pre_value++; 3171 } 3172 3173 /* see comments in the NL80211_IFTYPE_AP block */ 3174 if (params->count > 1) { 3175 err = ieee80211_mesh_csa_beacon(sdata, params); 3176 if (err < 0) { 3177 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3178 return err; 3179 } 3180 *changed |= err; 3181 } 3182 3183 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3184 ieee80211_send_action_csa(sdata, params); 3185 3186 break; 3187 } 3188 #endif 3189 default: 3190 return -EOPNOTSUPP; 3191 } 3192 3193 return 0; 3194 } 3195 3196 static int 3197 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3198 struct cfg80211_csa_settings *params) 3199 { 3200 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3201 struct ieee80211_local *local = sdata->local; 3202 struct ieee80211_channel_switch ch_switch; 3203 struct ieee80211_chanctx_conf *conf; 3204 struct ieee80211_chanctx *chanctx; 3205 u32 changed = 0; 3206 int err; 3207 3208 sdata_assert_lock(sdata); 3209 lockdep_assert_held(&local->mtx); 3210 3211 if (!list_empty(&local->roc_list) || local->scanning) 3212 return -EBUSY; 3213 3214 if (sdata->wdev.cac_started) 3215 return -EBUSY; 3216 3217 if (cfg80211_chandef_identical(¶ms->chandef, 3218 &sdata->vif.bss_conf.chandef)) 3219 return -EINVAL; 3220 3221 /* don't allow another channel switch if one is already active. */ 3222 if (sdata->vif.csa_active) 3223 return -EBUSY; 3224 3225 mutex_lock(&local->chanctx_mtx); 3226 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3227 lockdep_is_held(&local->chanctx_mtx)); 3228 if (!conf) { 3229 err = -EBUSY; 3230 goto out; 3231 } 3232 3233 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3234 3235 ch_switch.timestamp = 0; 3236 ch_switch.device_timestamp = 0; 3237 ch_switch.block_tx = params->block_tx; 3238 ch_switch.chandef = params->chandef; 3239 ch_switch.count = params->count; 3240 3241 err = drv_pre_channel_switch(sdata, &ch_switch); 3242 if (err) 3243 goto out; 3244 3245 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3246 chanctx->mode, 3247 params->radar_required); 3248 if (err) 3249 goto out; 3250 3251 /* if reservation is invalid then this will fail */ 3252 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3253 if (err) { 3254 ieee80211_vif_unreserve_chanctx(sdata); 3255 goto out; 3256 } 3257 3258 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3259 if (err) { 3260 ieee80211_vif_unreserve_chanctx(sdata); 3261 goto out; 3262 } 3263 3264 sdata->csa_chandef = params->chandef; 3265 sdata->csa_block_tx = params->block_tx; 3266 sdata->vif.csa_active = true; 3267 3268 if (sdata->csa_block_tx) 3269 ieee80211_stop_vif_queues(local, sdata, 3270 IEEE80211_QUEUE_STOP_REASON_CSA); 3271 3272 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3273 params->count); 3274 3275 if (changed) { 3276 ieee80211_bss_info_change_notify(sdata, changed); 3277 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3278 } else { 3279 /* if the beacon didn't change, we can finalize immediately */ 3280 ieee80211_csa_finalize(sdata); 3281 } 3282 3283 out: 3284 mutex_unlock(&local->chanctx_mtx); 3285 return err; 3286 } 3287 3288 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3289 struct cfg80211_csa_settings *params) 3290 { 3291 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3292 struct ieee80211_local *local = sdata->local; 3293 int err; 3294 3295 mutex_lock(&local->mtx); 3296 err = __ieee80211_channel_switch(wiphy, dev, params); 3297 mutex_unlock(&local->mtx); 3298 3299 return err; 3300 } 3301 3302 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3303 { 3304 lockdep_assert_held(&local->mtx); 3305 3306 local->roc_cookie_counter++; 3307 3308 /* wow, you wrapped 64 bits ... more likely a bug */ 3309 if (WARN_ON(local->roc_cookie_counter == 0)) 3310 local->roc_cookie_counter++; 3311 3312 return local->roc_cookie_counter; 3313 } 3314 3315 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3316 u64 *cookie, gfp_t gfp) 3317 { 3318 unsigned long spin_flags; 3319 struct sk_buff *ack_skb; 3320 int id; 3321 3322 ack_skb = skb_copy(skb, gfp); 3323 if (!ack_skb) 3324 return -ENOMEM; 3325 3326 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3327 id = idr_alloc(&local->ack_status_frames, ack_skb, 3328 1, 0x10000, GFP_ATOMIC); 3329 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3330 3331 if (id < 0) { 3332 kfree_skb(ack_skb); 3333 return -ENOMEM; 3334 } 3335 3336 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3337 3338 *cookie = ieee80211_mgmt_tx_cookie(local); 3339 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3340 3341 return 0; 3342 } 3343 3344 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3345 struct wireless_dev *wdev, 3346 u16 frame_type, bool reg) 3347 { 3348 struct ieee80211_local *local = wiphy_priv(wiphy); 3349 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3350 3351 switch (frame_type) { 3352 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3353 if (reg) { 3354 local->probe_req_reg++; 3355 sdata->vif.probe_req_reg++; 3356 } else { 3357 if (local->probe_req_reg) 3358 local->probe_req_reg--; 3359 3360 if (sdata->vif.probe_req_reg) 3361 sdata->vif.probe_req_reg--; 3362 } 3363 3364 if (!local->open_count) 3365 break; 3366 3367 if (sdata->vif.probe_req_reg == 1) 3368 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3369 FIF_PROBE_REQ); 3370 else if (sdata->vif.probe_req_reg == 0) 3371 drv_config_iface_filter(local, sdata, 0, 3372 FIF_PROBE_REQ); 3373 3374 ieee80211_configure_filter(local); 3375 break; 3376 default: 3377 break; 3378 } 3379 } 3380 3381 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3382 { 3383 struct ieee80211_local *local = wiphy_priv(wiphy); 3384 3385 if (local->started) 3386 return -EOPNOTSUPP; 3387 3388 return drv_set_antenna(local, tx_ant, rx_ant); 3389 } 3390 3391 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3392 { 3393 struct ieee80211_local *local = wiphy_priv(wiphy); 3394 3395 return drv_get_antenna(local, tx_ant, rx_ant); 3396 } 3397 3398 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3399 struct net_device *dev, 3400 struct cfg80211_gtk_rekey_data *data) 3401 { 3402 struct ieee80211_local *local = wiphy_priv(wiphy); 3403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3404 3405 if (!local->ops->set_rekey_data) 3406 return -EOPNOTSUPP; 3407 3408 drv_set_rekey_data(local, sdata, data); 3409 3410 return 0; 3411 } 3412 3413 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3414 const u8 *peer, u64 *cookie) 3415 { 3416 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3417 struct ieee80211_local *local = sdata->local; 3418 struct ieee80211_qos_hdr *nullfunc; 3419 struct sk_buff *skb; 3420 int size = sizeof(*nullfunc); 3421 __le16 fc; 3422 bool qos; 3423 struct ieee80211_tx_info *info; 3424 struct sta_info *sta; 3425 struct ieee80211_chanctx_conf *chanctx_conf; 3426 enum nl80211_band band; 3427 int ret; 3428 3429 /* the lock is needed to assign the cookie later */ 3430 mutex_lock(&local->mtx); 3431 3432 rcu_read_lock(); 3433 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3434 if (WARN_ON(!chanctx_conf)) { 3435 ret = -EINVAL; 3436 goto unlock; 3437 } 3438 band = chanctx_conf->def.chan->band; 3439 sta = sta_info_get_bss(sdata, peer); 3440 if (sta) { 3441 qos = sta->sta.wme; 3442 } else { 3443 ret = -ENOLINK; 3444 goto unlock; 3445 } 3446 3447 if (qos) { 3448 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3449 IEEE80211_STYPE_QOS_NULLFUNC | 3450 IEEE80211_FCTL_FROMDS); 3451 } else { 3452 size -= 2; 3453 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3454 IEEE80211_STYPE_NULLFUNC | 3455 IEEE80211_FCTL_FROMDS); 3456 } 3457 3458 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3459 if (!skb) { 3460 ret = -ENOMEM; 3461 goto unlock; 3462 } 3463 3464 skb->dev = dev; 3465 3466 skb_reserve(skb, local->hw.extra_tx_headroom); 3467 3468 nullfunc = skb_put(skb, size); 3469 nullfunc->frame_control = fc; 3470 nullfunc->duration_id = 0; 3471 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3472 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3473 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3474 nullfunc->seq_ctrl = 0; 3475 3476 info = IEEE80211_SKB_CB(skb); 3477 3478 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3479 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3480 info->band = band; 3481 3482 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3483 skb->priority = 7; 3484 if (qos) 3485 nullfunc->qos_ctrl = cpu_to_le16(7); 3486 3487 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3488 if (ret) { 3489 kfree_skb(skb); 3490 goto unlock; 3491 } 3492 3493 local_bh_disable(); 3494 ieee80211_xmit(sdata, sta, skb, 0); 3495 local_bh_enable(); 3496 3497 ret = 0; 3498 unlock: 3499 rcu_read_unlock(); 3500 mutex_unlock(&local->mtx); 3501 3502 return ret; 3503 } 3504 3505 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3506 struct wireless_dev *wdev, 3507 struct cfg80211_chan_def *chandef) 3508 { 3509 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3510 struct ieee80211_local *local = wiphy_priv(wiphy); 3511 struct ieee80211_chanctx_conf *chanctx_conf; 3512 int ret = -ENODATA; 3513 3514 rcu_read_lock(); 3515 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3516 if (chanctx_conf) { 3517 *chandef = sdata->vif.bss_conf.chandef; 3518 ret = 0; 3519 } else if (local->open_count > 0 && 3520 local->open_count == local->monitors && 3521 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3522 if (local->use_chanctx) 3523 *chandef = local->monitor_chandef; 3524 else 3525 *chandef = local->_oper_chandef; 3526 ret = 0; 3527 } 3528 rcu_read_unlock(); 3529 3530 return ret; 3531 } 3532 3533 #ifdef CONFIG_PM 3534 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3535 { 3536 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3537 } 3538 #endif 3539 3540 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3541 struct net_device *dev, 3542 struct cfg80211_qos_map *qos_map) 3543 { 3544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3545 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3546 3547 if (qos_map) { 3548 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3549 if (!new_qos_map) 3550 return -ENOMEM; 3551 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3552 } else { 3553 /* A NULL qos_map was passed to disable QoS mapping */ 3554 new_qos_map = NULL; 3555 } 3556 3557 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3558 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3559 if (old_qos_map) 3560 kfree_rcu(old_qos_map, rcu_head); 3561 3562 return 0; 3563 } 3564 3565 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3566 struct net_device *dev, 3567 struct cfg80211_chan_def *chandef) 3568 { 3569 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3570 int ret; 3571 u32 changed = 0; 3572 3573 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3574 if (ret == 0) 3575 ieee80211_bss_info_change_notify(sdata, changed); 3576 3577 return ret; 3578 } 3579 3580 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3581 u8 tsid, const u8 *peer, u8 up, 3582 u16 admitted_time) 3583 { 3584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3585 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3586 int ac = ieee802_1d_to_ac[up]; 3587 3588 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3589 return -EOPNOTSUPP; 3590 3591 if (!(sdata->wmm_acm & BIT(up))) 3592 return -EINVAL; 3593 3594 if (ifmgd->tx_tspec[ac].admitted_time) 3595 return -EBUSY; 3596 3597 if (admitted_time) { 3598 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3599 ifmgd->tx_tspec[ac].tsid = tsid; 3600 ifmgd->tx_tspec[ac].up = up; 3601 } 3602 3603 return 0; 3604 } 3605 3606 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3607 u8 tsid, const u8 *peer) 3608 { 3609 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3610 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3611 struct ieee80211_local *local = wiphy_priv(wiphy); 3612 int ac; 3613 3614 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3615 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3616 3617 /* skip unused entries */ 3618 if (!tx_tspec->admitted_time) 3619 continue; 3620 3621 if (tx_tspec->tsid != tsid) 3622 continue; 3623 3624 /* due to this new packets will be reassigned to non-ACM ACs */ 3625 tx_tspec->up = -1; 3626 3627 /* Make sure that all packets have been sent to avoid to 3628 * restore the QoS params on packets that are still on the 3629 * queues. 3630 */ 3631 synchronize_net(); 3632 ieee80211_flush_queues(local, sdata, false); 3633 3634 /* restore the normal QoS parameters 3635 * (unconditionally to avoid races) 3636 */ 3637 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3638 tx_tspec->downgraded = false; 3639 ieee80211_sta_handle_tspec_ac_params(sdata); 3640 3641 /* finally clear all the data */ 3642 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3643 3644 return 0; 3645 } 3646 3647 return -ENOENT; 3648 } 3649 3650 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3651 u8 inst_id, 3652 enum nl80211_nan_func_term_reason reason, 3653 gfp_t gfp) 3654 { 3655 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3656 struct cfg80211_nan_func *func; 3657 u64 cookie; 3658 3659 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3660 return; 3661 3662 spin_lock_bh(&sdata->u.nan.func_lock); 3663 3664 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3665 if (WARN_ON(!func)) { 3666 spin_unlock_bh(&sdata->u.nan.func_lock); 3667 return; 3668 } 3669 3670 cookie = func->cookie; 3671 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3672 3673 spin_unlock_bh(&sdata->u.nan.func_lock); 3674 3675 cfg80211_free_nan_func(func); 3676 3677 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3678 reason, cookie, gfp); 3679 } 3680 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3681 3682 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3683 struct cfg80211_nan_match_params *match, 3684 gfp_t gfp) 3685 { 3686 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3687 struct cfg80211_nan_func *func; 3688 3689 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3690 return; 3691 3692 spin_lock_bh(&sdata->u.nan.func_lock); 3693 3694 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3695 if (WARN_ON(!func)) { 3696 spin_unlock_bh(&sdata->u.nan.func_lock); 3697 return; 3698 } 3699 match->cookie = func->cookie; 3700 3701 spin_unlock_bh(&sdata->u.nan.func_lock); 3702 3703 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3704 } 3705 EXPORT_SYMBOL(ieee80211_nan_func_match); 3706 3707 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3708 struct net_device *dev, 3709 const bool enabled) 3710 { 3711 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3712 3713 sdata->u.ap.multicast_to_unicast = enabled; 3714 3715 return 0; 3716 } 3717 3718 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3719 struct txq_info *txqi) 3720 { 3721 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3722 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3723 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3724 } 3725 3726 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3727 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3728 txqstats->backlog_packets = txqi->tin.backlog_packets; 3729 } 3730 3731 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3732 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3733 txqstats->flows = txqi->tin.flows; 3734 } 3735 3736 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3737 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3738 txqstats->drops = txqi->cstats.drop_count; 3739 } 3740 3741 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3742 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3743 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3744 } 3745 3746 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3747 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3748 txqstats->overlimit = txqi->tin.overlimit; 3749 } 3750 3751 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3752 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3753 txqstats->collisions = txqi->tin.collisions; 3754 } 3755 3756 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3757 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3758 txqstats->tx_bytes = txqi->tin.tx_bytes; 3759 } 3760 3761 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3762 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3763 txqstats->tx_packets = txqi->tin.tx_packets; 3764 } 3765 } 3766 3767 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3768 struct wireless_dev *wdev, 3769 struct cfg80211_txq_stats *txqstats) 3770 { 3771 struct ieee80211_local *local = wiphy_priv(wiphy); 3772 struct ieee80211_sub_if_data *sdata; 3773 int ret = 0; 3774 3775 if (!local->ops->wake_tx_queue) 3776 return 1; 3777 3778 spin_lock_bh(&local->fq.lock); 3779 rcu_read_lock(); 3780 3781 if (wdev) { 3782 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3783 if (!sdata->vif.txq) { 3784 ret = 1; 3785 goto out; 3786 } 3787 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3788 } else { 3789 /* phy stats */ 3790 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3791 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3792 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3793 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3794 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3795 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3796 txqstats->backlog_packets = local->fq.backlog; 3797 txqstats->backlog_bytes = local->fq.memory_usage; 3798 txqstats->overlimit = local->fq.overlimit; 3799 txqstats->overmemory = local->fq.overmemory; 3800 txqstats->collisions = local->fq.collisions; 3801 txqstats->max_flows = local->fq.flows_cnt; 3802 } 3803 3804 out: 3805 rcu_read_unlock(); 3806 spin_unlock_bh(&local->fq.lock); 3807 3808 return ret; 3809 } 3810 3811 const struct cfg80211_ops mac80211_config_ops = { 3812 .add_virtual_intf = ieee80211_add_iface, 3813 .del_virtual_intf = ieee80211_del_iface, 3814 .change_virtual_intf = ieee80211_change_iface, 3815 .start_p2p_device = ieee80211_start_p2p_device, 3816 .stop_p2p_device = ieee80211_stop_p2p_device, 3817 .add_key = ieee80211_add_key, 3818 .del_key = ieee80211_del_key, 3819 .get_key = ieee80211_get_key, 3820 .set_default_key = ieee80211_config_default_key, 3821 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3822 .start_ap = ieee80211_start_ap, 3823 .change_beacon = ieee80211_change_beacon, 3824 .stop_ap = ieee80211_stop_ap, 3825 .add_station = ieee80211_add_station, 3826 .del_station = ieee80211_del_station, 3827 .change_station = ieee80211_change_station, 3828 .get_station = ieee80211_get_station, 3829 .dump_station = ieee80211_dump_station, 3830 .dump_survey = ieee80211_dump_survey, 3831 #ifdef CONFIG_MAC80211_MESH 3832 .add_mpath = ieee80211_add_mpath, 3833 .del_mpath = ieee80211_del_mpath, 3834 .change_mpath = ieee80211_change_mpath, 3835 .get_mpath = ieee80211_get_mpath, 3836 .dump_mpath = ieee80211_dump_mpath, 3837 .get_mpp = ieee80211_get_mpp, 3838 .dump_mpp = ieee80211_dump_mpp, 3839 .update_mesh_config = ieee80211_update_mesh_config, 3840 .get_mesh_config = ieee80211_get_mesh_config, 3841 .join_mesh = ieee80211_join_mesh, 3842 .leave_mesh = ieee80211_leave_mesh, 3843 #endif 3844 .join_ocb = ieee80211_join_ocb, 3845 .leave_ocb = ieee80211_leave_ocb, 3846 .change_bss = ieee80211_change_bss, 3847 .set_txq_params = ieee80211_set_txq_params, 3848 .set_monitor_channel = ieee80211_set_monitor_channel, 3849 .suspend = ieee80211_suspend, 3850 .resume = ieee80211_resume, 3851 .scan = ieee80211_scan, 3852 .abort_scan = ieee80211_abort_scan, 3853 .sched_scan_start = ieee80211_sched_scan_start, 3854 .sched_scan_stop = ieee80211_sched_scan_stop, 3855 .auth = ieee80211_auth, 3856 .assoc = ieee80211_assoc, 3857 .deauth = ieee80211_deauth, 3858 .disassoc = ieee80211_disassoc, 3859 .join_ibss = ieee80211_join_ibss, 3860 .leave_ibss = ieee80211_leave_ibss, 3861 .set_mcast_rate = ieee80211_set_mcast_rate, 3862 .set_wiphy_params = ieee80211_set_wiphy_params, 3863 .set_tx_power = ieee80211_set_tx_power, 3864 .get_tx_power = ieee80211_get_tx_power, 3865 .set_wds_peer = ieee80211_set_wds_peer, 3866 .rfkill_poll = ieee80211_rfkill_poll, 3867 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3868 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3869 .set_power_mgmt = ieee80211_set_power_mgmt, 3870 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3871 .remain_on_channel = ieee80211_remain_on_channel, 3872 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3873 .mgmt_tx = ieee80211_mgmt_tx, 3874 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3875 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3876 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3877 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3878 .set_antenna = ieee80211_set_antenna, 3879 .get_antenna = ieee80211_get_antenna, 3880 .set_rekey_data = ieee80211_set_rekey_data, 3881 .tdls_oper = ieee80211_tdls_oper, 3882 .tdls_mgmt = ieee80211_tdls_mgmt, 3883 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3884 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3885 .probe_client = ieee80211_probe_client, 3886 .set_noack_map = ieee80211_set_noack_map, 3887 #ifdef CONFIG_PM 3888 .set_wakeup = ieee80211_set_wakeup, 3889 #endif 3890 .get_channel = ieee80211_cfg_get_channel, 3891 .start_radar_detection = ieee80211_start_radar_detection, 3892 .channel_switch = ieee80211_channel_switch, 3893 .set_qos_map = ieee80211_set_qos_map, 3894 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3895 .add_tx_ts = ieee80211_add_tx_ts, 3896 .del_tx_ts = ieee80211_del_tx_ts, 3897 .start_nan = ieee80211_start_nan, 3898 .stop_nan = ieee80211_stop_nan, 3899 .nan_change_conf = ieee80211_nan_change_conf, 3900 .add_nan_func = ieee80211_add_nan_func, 3901 .del_nan_func = ieee80211_del_nan_func, 3902 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3903 .tx_control_port = ieee80211_tx_control_port, 3904 .get_txq_stats = ieee80211_get_txq_stats, 3905 }; 3906