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 && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 355 u8 key_idx, bool pairwise, const u8 *mac_addr, 356 struct key_params *params) 357 { 358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 359 struct ieee80211_local *local = sdata->local; 360 struct sta_info *sta = NULL; 361 const struct ieee80211_cipher_scheme *cs = NULL; 362 struct ieee80211_key *key; 363 int err; 364 365 if (!ieee80211_sdata_running(sdata)) 366 return -ENETDOWN; 367 368 /* reject WEP and TKIP keys if WEP failed to initialize */ 369 switch (params->cipher) { 370 case WLAN_CIPHER_SUITE_WEP40: 371 case WLAN_CIPHER_SUITE_TKIP: 372 case WLAN_CIPHER_SUITE_WEP104: 373 if (IS_ERR(local->wep_tx_tfm)) 374 return -EINVAL; 375 break; 376 case WLAN_CIPHER_SUITE_CCMP: 377 case WLAN_CIPHER_SUITE_CCMP_256: 378 case WLAN_CIPHER_SUITE_AES_CMAC: 379 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 380 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 381 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 382 case WLAN_CIPHER_SUITE_GCMP: 383 case WLAN_CIPHER_SUITE_GCMP_256: 384 break; 385 default: 386 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 387 break; 388 } 389 390 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 391 params->key, params->seq_len, params->seq, 392 cs); 393 if (IS_ERR(key)) 394 return PTR_ERR(key); 395 396 if (pairwise) 397 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 398 399 mutex_lock(&local->sta_mtx); 400 401 if (mac_addr) { 402 sta = sta_info_get_bss(sdata, mac_addr); 403 /* 404 * The ASSOC test makes sure the driver is ready to 405 * receive the key. When wpa_supplicant has roamed 406 * using FT, it attempts to set the key before 407 * association has completed, this rejects that attempt 408 * so it will set the key again after association. 409 * 410 * TODO: accept the key if we have a station entry and 411 * add it to the device after the station. 412 */ 413 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 414 ieee80211_key_free_unused(key); 415 err = -ENOENT; 416 goto out_unlock; 417 } 418 } 419 420 switch (sdata->vif.type) { 421 case NL80211_IFTYPE_STATION: 422 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 423 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 424 break; 425 case NL80211_IFTYPE_AP: 426 case NL80211_IFTYPE_AP_VLAN: 427 /* Keys without a station are used for TX only */ 428 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 429 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 430 break; 431 case NL80211_IFTYPE_ADHOC: 432 /* no MFP (yet) */ 433 break; 434 case NL80211_IFTYPE_MESH_POINT: 435 #ifdef CONFIG_MAC80211_MESH 436 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 437 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 438 break; 439 #endif 440 case NL80211_IFTYPE_WDS: 441 case NL80211_IFTYPE_MONITOR: 442 case NL80211_IFTYPE_P2P_DEVICE: 443 case NL80211_IFTYPE_NAN: 444 case NL80211_IFTYPE_UNSPECIFIED: 445 case NUM_NL80211_IFTYPES: 446 case NL80211_IFTYPE_P2P_CLIENT: 447 case NL80211_IFTYPE_P2P_GO: 448 case NL80211_IFTYPE_OCB: 449 /* shouldn't happen */ 450 WARN_ON_ONCE(1); 451 break; 452 } 453 454 if (sta) 455 sta->cipher_scheme = cs; 456 457 err = ieee80211_key_link(key, sdata, sta); 458 459 out_unlock: 460 mutex_unlock(&local->sta_mtx); 461 462 return err; 463 } 464 465 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 466 u8 key_idx, bool pairwise, const u8 *mac_addr) 467 { 468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 469 struct ieee80211_local *local = sdata->local; 470 struct sta_info *sta; 471 struct ieee80211_key *key = NULL; 472 int ret; 473 474 mutex_lock(&local->sta_mtx); 475 mutex_lock(&local->key_mtx); 476 477 if (mac_addr) { 478 ret = -ENOENT; 479 480 sta = sta_info_get_bss(sdata, mac_addr); 481 if (!sta) 482 goto out_unlock; 483 484 if (pairwise) 485 key = key_mtx_dereference(local, sta->ptk[key_idx]); 486 else 487 key = key_mtx_dereference(local, sta->gtk[key_idx]); 488 } else 489 key = key_mtx_dereference(local, sdata->keys[key_idx]); 490 491 if (!key) { 492 ret = -ENOENT; 493 goto out_unlock; 494 } 495 496 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 497 498 ret = 0; 499 out_unlock: 500 mutex_unlock(&local->key_mtx); 501 mutex_unlock(&local->sta_mtx); 502 503 return ret; 504 } 505 506 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 507 u8 key_idx, bool pairwise, const u8 *mac_addr, 508 void *cookie, 509 void (*callback)(void *cookie, 510 struct key_params *params)) 511 { 512 struct ieee80211_sub_if_data *sdata; 513 struct sta_info *sta = NULL; 514 u8 seq[6] = {0}; 515 struct key_params params; 516 struct ieee80211_key *key = NULL; 517 u64 pn64; 518 u32 iv32; 519 u16 iv16; 520 int err = -ENOENT; 521 struct ieee80211_key_seq kseq = {}; 522 523 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 524 525 rcu_read_lock(); 526 527 if (mac_addr) { 528 sta = sta_info_get_bss(sdata, mac_addr); 529 if (!sta) 530 goto out; 531 532 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 533 key = rcu_dereference(sta->ptk[key_idx]); 534 else if (!pairwise && 535 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 536 key = rcu_dereference(sta->gtk[key_idx]); 537 } else 538 key = rcu_dereference(sdata->keys[key_idx]); 539 540 if (!key) 541 goto out; 542 543 memset(¶ms, 0, sizeof(params)); 544 545 params.cipher = key->conf.cipher; 546 547 switch (key->conf.cipher) { 548 case WLAN_CIPHER_SUITE_TKIP: 549 pn64 = atomic64_read(&key->conf.tx_pn); 550 iv32 = TKIP_PN_TO_IV32(pn64); 551 iv16 = TKIP_PN_TO_IV16(pn64); 552 553 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 554 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 555 drv_get_key_seq(sdata->local, key, &kseq); 556 iv32 = kseq.tkip.iv32; 557 iv16 = kseq.tkip.iv16; 558 } 559 560 seq[0] = iv16 & 0xff; 561 seq[1] = (iv16 >> 8) & 0xff; 562 seq[2] = iv32 & 0xff; 563 seq[3] = (iv32 >> 8) & 0xff; 564 seq[4] = (iv32 >> 16) & 0xff; 565 seq[5] = (iv32 >> 24) & 0xff; 566 params.seq = seq; 567 params.seq_len = 6; 568 break; 569 case WLAN_CIPHER_SUITE_CCMP: 570 case WLAN_CIPHER_SUITE_CCMP_256: 571 case WLAN_CIPHER_SUITE_AES_CMAC: 572 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 573 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 574 offsetof(typeof(kseq), aes_cmac)); 575 /* fall through */ 576 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 577 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 579 offsetof(typeof(kseq), aes_gmac)); 580 /* fall through */ 581 case WLAN_CIPHER_SUITE_GCMP: 582 case WLAN_CIPHER_SUITE_GCMP_256: 583 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 584 offsetof(typeof(kseq), gcmp)); 585 586 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 587 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 588 drv_get_key_seq(sdata->local, key, &kseq); 589 memcpy(seq, kseq.ccmp.pn, 6); 590 } else { 591 pn64 = atomic64_read(&key->conf.tx_pn); 592 seq[0] = pn64; 593 seq[1] = pn64 >> 8; 594 seq[2] = pn64 >> 16; 595 seq[3] = pn64 >> 24; 596 seq[4] = pn64 >> 32; 597 seq[5] = pn64 >> 40; 598 } 599 params.seq = seq; 600 params.seq_len = 6; 601 break; 602 default: 603 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 604 break; 605 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 606 break; 607 drv_get_key_seq(sdata->local, key, &kseq); 608 params.seq = kseq.hw.seq; 609 params.seq_len = kseq.hw.seq_len; 610 break; 611 } 612 613 params.key = key->conf.key; 614 params.key_len = key->conf.keylen; 615 616 callback(cookie, ¶ms); 617 err = 0; 618 619 out: 620 rcu_read_unlock(); 621 return err; 622 } 623 624 static int ieee80211_config_default_key(struct wiphy *wiphy, 625 struct net_device *dev, 626 u8 key_idx, bool uni, 627 bool multi) 628 { 629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 630 631 ieee80211_set_default_key(sdata, key_idx, uni, multi); 632 633 return 0; 634 } 635 636 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 637 struct net_device *dev, 638 u8 key_idx) 639 { 640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 641 642 ieee80211_set_default_mgmt_key(sdata, key_idx); 643 644 return 0; 645 } 646 647 void sta_set_rate_info_tx(struct sta_info *sta, 648 const struct ieee80211_tx_rate *rate, 649 struct rate_info *rinfo) 650 { 651 rinfo->flags = 0; 652 if (rate->flags & IEEE80211_TX_RC_MCS) { 653 rinfo->flags |= RATE_INFO_FLAGS_MCS; 654 rinfo->mcs = rate->idx; 655 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 656 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 657 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 658 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 659 } else { 660 struct ieee80211_supported_band *sband; 661 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 662 u16 brate; 663 664 sband = ieee80211_get_sband(sta->sdata); 665 if (sband) { 666 brate = sband->bitrates[rate->idx].bitrate; 667 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 668 } 669 } 670 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 671 rinfo->bw = RATE_INFO_BW_40; 672 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 673 rinfo->bw = RATE_INFO_BW_80; 674 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 675 rinfo->bw = RATE_INFO_BW_160; 676 else 677 rinfo->bw = RATE_INFO_BW_20; 678 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 679 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 680 } 681 682 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 683 int idx, u8 *mac, struct station_info *sinfo) 684 { 685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 686 struct ieee80211_local *local = sdata->local; 687 struct sta_info *sta; 688 int ret = -ENOENT; 689 690 mutex_lock(&local->sta_mtx); 691 692 sta = sta_info_get_by_idx(sdata, idx); 693 if (sta) { 694 ret = 0; 695 memcpy(mac, sta->sta.addr, ETH_ALEN); 696 sta_set_sinfo(sta, sinfo, true); 697 } 698 699 mutex_unlock(&local->sta_mtx); 700 701 return ret; 702 } 703 704 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 705 int idx, struct survey_info *survey) 706 { 707 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 708 709 return drv_get_survey(local, idx, survey); 710 } 711 712 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 713 const u8 *mac, struct station_info *sinfo) 714 { 715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 716 struct ieee80211_local *local = sdata->local; 717 struct sta_info *sta; 718 int ret = -ENOENT; 719 720 mutex_lock(&local->sta_mtx); 721 722 sta = sta_info_get_bss(sdata, mac); 723 if (sta) { 724 ret = 0; 725 sta_set_sinfo(sta, sinfo, true); 726 } 727 728 mutex_unlock(&local->sta_mtx); 729 730 return ret; 731 } 732 733 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 734 struct cfg80211_chan_def *chandef) 735 { 736 struct ieee80211_local *local = wiphy_priv(wiphy); 737 struct ieee80211_sub_if_data *sdata; 738 int ret = 0; 739 740 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 741 return 0; 742 743 mutex_lock(&local->mtx); 744 if (local->use_chanctx) { 745 sdata = rtnl_dereference(local->monitor_sdata); 746 if (sdata) { 747 ieee80211_vif_release_channel(sdata); 748 ret = ieee80211_vif_use_channel(sdata, chandef, 749 IEEE80211_CHANCTX_EXCLUSIVE); 750 } 751 } else if (local->open_count == local->monitors) { 752 local->_oper_chandef = *chandef; 753 ieee80211_hw_config(local, 0); 754 } 755 756 if (ret == 0) 757 local->monitor_chandef = *chandef; 758 mutex_unlock(&local->mtx); 759 760 return ret; 761 } 762 763 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 764 const u8 *resp, size_t resp_len, 765 const struct ieee80211_csa_settings *csa) 766 { 767 struct probe_resp *new, *old; 768 769 if (!resp || !resp_len) 770 return 1; 771 772 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 773 774 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 775 if (!new) 776 return -ENOMEM; 777 778 new->len = resp_len; 779 memcpy(new->data, resp, resp_len); 780 781 if (csa) 782 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 783 csa->n_counter_offsets_presp * 784 sizeof(new->csa_counter_offsets[0])); 785 786 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 787 if (old) 788 kfree_rcu(old, rcu_head); 789 790 return 0; 791 } 792 793 static int ieee80211_set_ftm_responder_params( 794 struct ieee80211_sub_if_data *sdata, 795 const u8 *lci, size_t lci_len, 796 const u8 *civicloc, size_t civicloc_len) 797 { 798 struct ieee80211_ftm_responder_params *new, *old; 799 struct ieee80211_bss_conf *bss_conf; 800 u8 *pos; 801 int len; 802 803 if ((!lci || !lci_len) && (!civicloc || !civicloc_len)) 804 return 1; 805 806 bss_conf = &sdata->vif.bss_conf; 807 old = bss_conf->ftmr_params; 808 len = lci_len + civicloc_len; 809 810 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 pos = (u8 *)(new + 1); 815 if (lci_len) { 816 new->lci_len = lci_len; 817 new->lci = pos; 818 memcpy(pos, lci, lci_len); 819 pos += lci_len; 820 } 821 822 if (civicloc_len) { 823 new->civicloc_len = civicloc_len; 824 new->civicloc = pos; 825 memcpy(pos, civicloc, civicloc_len); 826 pos += civicloc_len; 827 } 828 829 bss_conf->ftmr_params = new; 830 kfree(old); 831 832 return 0; 833 } 834 835 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 836 struct cfg80211_beacon_data *params, 837 const struct ieee80211_csa_settings *csa) 838 { 839 struct beacon_data *new, *old; 840 int new_head_len, new_tail_len; 841 int size, err; 842 u32 changed = BSS_CHANGED_BEACON; 843 844 old = sdata_dereference(sdata->u.ap.beacon, sdata); 845 846 847 /* Need to have a beacon head if we don't have one yet */ 848 if (!params->head && !old) 849 return -EINVAL; 850 851 /* new or old head? */ 852 if (params->head) 853 new_head_len = params->head_len; 854 else 855 new_head_len = old->head_len; 856 857 /* new or old tail? */ 858 if (params->tail || !old) 859 /* params->tail_len will be zero for !params->tail */ 860 new_tail_len = params->tail_len; 861 else 862 new_tail_len = old->tail_len; 863 864 size = sizeof(*new) + new_head_len + new_tail_len; 865 866 new = kzalloc(size, GFP_KERNEL); 867 if (!new) 868 return -ENOMEM; 869 870 /* start filling the new info now */ 871 872 /* 873 * pointers go into the block we allocated, 874 * memory is | beacon_data | head | tail | 875 */ 876 new->head = ((u8 *) new) + sizeof(*new); 877 new->tail = new->head + new_head_len; 878 new->head_len = new_head_len; 879 new->tail_len = new_tail_len; 880 881 if (csa) { 882 new->csa_current_counter = csa->count; 883 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 884 csa->n_counter_offsets_beacon * 885 sizeof(new->csa_counter_offsets[0])); 886 } 887 888 /* copy in head */ 889 if (params->head) 890 memcpy(new->head, params->head, new_head_len); 891 else 892 memcpy(new->head, old->head, new_head_len); 893 894 /* copy in optional tail */ 895 if (params->tail) 896 memcpy(new->tail, params->tail, new_tail_len); 897 else 898 if (old) 899 memcpy(new->tail, old->tail, new_tail_len); 900 901 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 902 params->probe_resp_len, csa); 903 if (err < 0) 904 return err; 905 if (err == 0) 906 changed |= BSS_CHANGED_AP_PROBE_RESP; 907 908 if (params->ftm_responder != -1) { 909 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 910 err = ieee80211_set_ftm_responder_params(sdata, 911 params->lci, 912 params->lci_len, 913 params->civicloc, 914 params->civicloc_len); 915 916 if (err < 0) 917 return err; 918 919 changed |= BSS_CHANGED_FTM_RESPONDER; 920 } 921 922 rcu_assign_pointer(sdata->u.ap.beacon, new); 923 924 if (old) 925 kfree_rcu(old, rcu_head); 926 927 return changed; 928 } 929 930 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 931 struct cfg80211_ap_settings *params) 932 { 933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 934 struct ieee80211_local *local = sdata->local; 935 struct beacon_data *old; 936 struct ieee80211_sub_if_data *vlan; 937 u32 changed = BSS_CHANGED_BEACON_INT | 938 BSS_CHANGED_BEACON_ENABLED | 939 BSS_CHANGED_BEACON | 940 BSS_CHANGED_SSID | 941 BSS_CHANGED_P2P_PS | 942 BSS_CHANGED_TXPOWER; 943 int err; 944 945 old = sdata_dereference(sdata->u.ap.beacon, sdata); 946 if (old) 947 return -EALREADY; 948 949 switch (params->smps_mode) { 950 case NL80211_SMPS_OFF: 951 sdata->smps_mode = IEEE80211_SMPS_OFF; 952 break; 953 case NL80211_SMPS_STATIC: 954 sdata->smps_mode = IEEE80211_SMPS_STATIC; 955 break; 956 case NL80211_SMPS_DYNAMIC: 957 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 958 break; 959 default: 960 return -EINVAL; 961 } 962 sdata->u.ap.req_smps = sdata->smps_mode; 963 964 sdata->needed_rx_chains = sdata->local->rx_chains; 965 966 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 967 968 if (params->he_cap) 969 sdata->vif.bss_conf.he_support = true; 970 971 mutex_lock(&local->mtx); 972 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 973 IEEE80211_CHANCTX_SHARED); 974 if (!err) 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 976 mutex_unlock(&local->mtx); 977 if (err) 978 return err; 979 980 /* 981 * Apply control port protocol, this allows us to 982 * not encrypt dynamic WEP control frames. 983 */ 984 sdata->control_port_protocol = params->crypto.control_port_ethertype; 985 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 986 sdata->control_port_over_nl80211 = 987 params->crypto.control_port_over_nl80211; 988 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 989 ¶ms->crypto, 990 sdata->vif.type); 991 992 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 993 vlan->control_port_protocol = 994 params->crypto.control_port_ethertype; 995 vlan->control_port_no_encrypt = 996 params->crypto.control_port_no_encrypt; 997 vlan->control_port_over_nl80211 = 998 params->crypto.control_port_over_nl80211; 999 vlan->encrypt_headroom = 1000 ieee80211_cs_headroom(sdata->local, 1001 ¶ms->crypto, 1002 vlan->vif.type); 1003 } 1004 1005 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1006 sdata->vif.bss_conf.enable_beacon = true; 1007 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1008 1009 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1010 if (params->ssid_len) 1011 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1012 params->ssid_len); 1013 sdata->vif.bss_conf.hidden_ssid = 1014 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1015 1016 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1017 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1018 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1019 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1020 if (params->p2p_opp_ps) 1021 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1022 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1023 1024 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1025 if (err < 0) { 1026 ieee80211_vif_release_channel(sdata); 1027 return err; 1028 } 1029 changed |= err; 1030 1031 err = drv_start_ap(sdata->local, sdata); 1032 if (err) { 1033 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1034 1035 if (old) 1036 kfree_rcu(old, rcu_head); 1037 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1038 ieee80211_vif_release_channel(sdata); 1039 return err; 1040 } 1041 1042 ieee80211_recalc_dtim(local, sdata); 1043 ieee80211_bss_info_change_notify(sdata, changed); 1044 1045 netif_carrier_on(dev); 1046 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1047 netif_carrier_on(vlan->dev); 1048 1049 return 0; 1050 } 1051 1052 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1053 struct cfg80211_beacon_data *params) 1054 { 1055 struct ieee80211_sub_if_data *sdata; 1056 struct beacon_data *old; 1057 int err; 1058 1059 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1060 sdata_assert_lock(sdata); 1061 1062 /* don't allow changing the beacon while CSA is in place - offset 1063 * of channel switch counter may change 1064 */ 1065 if (sdata->vif.csa_active) 1066 return -EBUSY; 1067 1068 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1069 if (!old) 1070 return -ENOENT; 1071 1072 err = ieee80211_assign_beacon(sdata, params, NULL); 1073 if (err < 0) 1074 return err; 1075 ieee80211_bss_info_change_notify(sdata, err); 1076 return 0; 1077 } 1078 1079 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1080 { 1081 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1082 struct ieee80211_sub_if_data *vlan; 1083 struct ieee80211_local *local = sdata->local; 1084 struct beacon_data *old_beacon; 1085 struct probe_resp *old_probe_resp; 1086 struct cfg80211_chan_def chandef; 1087 1088 sdata_assert_lock(sdata); 1089 1090 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1091 if (!old_beacon) 1092 return -ENOENT; 1093 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1094 1095 /* abort any running channel switch */ 1096 mutex_lock(&local->mtx); 1097 sdata->vif.csa_active = false; 1098 if (sdata->csa_block_tx) { 1099 ieee80211_wake_vif_queues(local, sdata, 1100 IEEE80211_QUEUE_STOP_REASON_CSA); 1101 sdata->csa_block_tx = false; 1102 } 1103 1104 mutex_unlock(&local->mtx); 1105 1106 kfree(sdata->u.ap.next_beacon); 1107 sdata->u.ap.next_beacon = NULL; 1108 1109 /* turn off carrier for this interface and dependent VLANs */ 1110 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1111 netif_carrier_off(vlan->dev); 1112 netif_carrier_off(dev); 1113 1114 /* remove beacon and probe response */ 1115 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1116 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1117 kfree_rcu(old_beacon, rcu_head); 1118 if (old_probe_resp) 1119 kfree_rcu(old_probe_resp, rcu_head); 1120 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1121 1122 kfree(sdata->vif.bss_conf.ftmr_params); 1123 sdata->vif.bss_conf.ftmr_params = NULL; 1124 1125 __sta_info_flush(sdata, true); 1126 ieee80211_free_keys(sdata, true); 1127 1128 sdata->vif.bss_conf.enable_beacon = false; 1129 sdata->vif.bss_conf.ssid_len = 0; 1130 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1131 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1132 1133 if (sdata->wdev.cac_started) { 1134 chandef = sdata->vif.bss_conf.chandef; 1135 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1136 cfg80211_cac_event(sdata->dev, &chandef, 1137 NL80211_RADAR_CAC_ABORTED, 1138 GFP_KERNEL); 1139 } 1140 1141 drv_stop_ap(sdata->local, sdata); 1142 1143 /* free all potentially still buffered bcast frames */ 1144 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1145 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1146 1147 mutex_lock(&local->mtx); 1148 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1149 ieee80211_vif_release_channel(sdata); 1150 mutex_unlock(&local->mtx); 1151 1152 return 0; 1153 } 1154 1155 static int sta_apply_auth_flags(struct ieee80211_local *local, 1156 struct sta_info *sta, 1157 u32 mask, u32 set) 1158 { 1159 int ret; 1160 1161 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1162 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1163 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1165 if (ret) 1166 return ret; 1167 } 1168 1169 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1170 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1171 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1172 /* 1173 * When peer becomes associated, init rate control as 1174 * well. Some drivers require rate control initialized 1175 * before drv_sta_state() is called. 1176 */ 1177 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1178 rate_control_rate_init(sta); 1179 1180 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1181 if (ret) 1182 return ret; 1183 } 1184 1185 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1186 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1187 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1188 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1189 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1190 else 1191 ret = 0; 1192 if (ret) 1193 return ret; 1194 } 1195 1196 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1197 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1198 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1199 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1200 if (ret) 1201 return ret; 1202 } 1203 1204 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1205 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1206 test_sta_flag(sta, WLAN_STA_AUTH)) { 1207 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1208 if (ret) 1209 return ret; 1210 } 1211 1212 return 0; 1213 } 1214 1215 static void sta_apply_mesh_params(struct ieee80211_local *local, 1216 struct sta_info *sta, 1217 struct station_parameters *params) 1218 { 1219 #ifdef CONFIG_MAC80211_MESH 1220 struct ieee80211_sub_if_data *sdata = sta->sdata; 1221 u32 changed = 0; 1222 1223 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1224 switch (params->plink_state) { 1225 case NL80211_PLINK_ESTAB: 1226 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1227 changed = mesh_plink_inc_estab_count(sdata); 1228 sta->mesh->plink_state = params->plink_state; 1229 sta->mesh->aid = params->peer_aid; 1230 1231 ieee80211_mps_sta_status_update(sta); 1232 changed |= ieee80211_mps_set_sta_local_pm(sta, 1233 sdata->u.mesh.mshcfg.power_mode); 1234 break; 1235 case NL80211_PLINK_LISTEN: 1236 case NL80211_PLINK_BLOCKED: 1237 case NL80211_PLINK_OPN_SNT: 1238 case NL80211_PLINK_OPN_RCVD: 1239 case NL80211_PLINK_CNF_RCVD: 1240 case NL80211_PLINK_HOLDING: 1241 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1242 changed = mesh_plink_dec_estab_count(sdata); 1243 sta->mesh->plink_state = params->plink_state; 1244 1245 ieee80211_mps_sta_status_update(sta); 1246 changed |= ieee80211_mps_set_sta_local_pm(sta, 1247 NL80211_MESH_POWER_UNKNOWN); 1248 break; 1249 default: 1250 /* nothing */ 1251 break; 1252 } 1253 } 1254 1255 switch (params->plink_action) { 1256 case NL80211_PLINK_ACTION_NO_ACTION: 1257 /* nothing */ 1258 break; 1259 case NL80211_PLINK_ACTION_OPEN: 1260 changed |= mesh_plink_open(sta); 1261 break; 1262 case NL80211_PLINK_ACTION_BLOCK: 1263 changed |= mesh_plink_block(sta); 1264 break; 1265 } 1266 1267 if (params->local_pm) 1268 changed |= ieee80211_mps_set_sta_local_pm(sta, 1269 params->local_pm); 1270 1271 ieee80211_mbss_info_change_notify(sdata, changed); 1272 #endif 1273 } 1274 1275 static int sta_apply_parameters(struct ieee80211_local *local, 1276 struct sta_info *sta, 1277 struct station_parameters *params) 1278 { 1279 int ret = 0; 1280 struct ieee80211_supported_band *sband; 1281 struct ieee80211_sub_if_data *sdata = sta->sdata; 1282 u32 mask, set; 1283 1284 sband = ieee80211_get_sband(sdata); 1285 if (!sband) 1286 return -EINVAL; 1287 1288 mask = params->sta_flags_mask; 1289 set = params->sta_flags_set; 1290 1291 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1292 /* 1293 * In mesh mode, ASSOCIATED isn't part of the nl80211 1294 * API but must follow AUTHENTICATED for driver state. 1295 */ 1296 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1297 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1298 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1299 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1300 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1301 /* 1302 * TDLS -- everything follows authorized, but 1303 * only becoming authorized is possible, not 1304 * going back 1305 */ 1306 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1307 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1308 BIT(NL80211_STA_FLAG_ASSOCIATED); 1309 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1310 BIT(NL80211_STA_FLAG_ASSOCIATED); 1311 } 1312 } 1313 1314 if (mask & BIT(NL80211_STA_FLAG_WME) && 1315 local->hw.queues >= IEEE80211_NUM_ACS) 1316 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1317 1318 /* auth flags will be set later for TDLS, 1319 * and for unassociated stations that move to assocaited */ 1320 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1321 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1322 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1323 ret = sta_apply_auth_flags(local, sta, mask, set); 1324 if (ret) 1325 return ret; 1326 } 1327 1328 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1329 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1330 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1331 else 1332 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1333 } 1334 1335 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1336 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1337 if (set & BIT(NL80211_STA_FLAG_MFP)) 1338 set_sta_flag(sta, WLAN_STA_MFP); 1339 else 1340 clear_sta_flag(sta, WLAN_STA_MFP); 1341 } 1342 1343 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1344 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1345 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1346 else 1347 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1348 } 1349 1350 /* mark TDLS channel switch support, if the AP allows it */ 1351 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1352 !sdata->u.mgd.tdls_chan_switch_prohibited && 1353 params->ext_capab_len >= 4 && 1354 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1355 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1356 1357 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1358 !sdata->u.mgd.tdls_wider_bw_prohibited && 1359 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1360 params->ext_capab_len >= 8 && 1361 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1362 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1363 1364 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1365 sta->sta.uapsd_queues = params->uapsd_queues; 1366 sta->sta.max_sp = params->max_sp; 1367 } 1368 1369 /* The sender might not have sent the last bit, consider it to be 0 */ 1370 if (params->ext_capab_len >= 8) { 1371 u8 val = (params->ext_capab[7] & 1372 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1373 1374 /* we did get all the bits, take the MSB as well */ 1375 if (params->ext_capab_len >= 9) { 1376 u8 val_msb = params->ext_capab[8] & 1377 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1378 val_msb <<= 1; 1379 val |= val_msb; 1380 } 1381 1382 switch (val) { 1383 case 1: 1384 sta->sta.max_amsdu_subframes = 32; 1385 break; 1386 case 2: 1387 sta->sta.max_amsdu_subframes = 16; 1388 break; 1389 case 3: 1390 sta->sta.max_amsdu_subframes = 8; 1391 break; 1392 default: 1393 sta->sta.max_amsdu_subframes = 0; 1394 } 1395 } 1396 1397 /* 1398 * cfg80211 validates this (1-2007) and allows setting the AID 1399 * only when creating a new station entry 1400 */ 1401 if (params->aid) 1402 sta->sta.aid = params->aid; 1403 1404 /* 1405 * Some of the following updates would be racy if called on an 1406 * existing station, via ieee80211_change_station(). However, 1407 * all such changes are rejected by cfg80211 except for updates 1408 * changing the supported rates on an existing but not yet used 1409 * TDLS peer. 1410 */ 1411 1412 if (params->listen_interval >= 0) 1413 sta->listen_interval = params->listen_interval; 1414 1415 if (params->supported_rates) { 1416 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1417 sband, params->supported_rates, 1418 params->supported_rates_len, 1419 &sta->sta.supp_rates[sband->band]); 1420 } 1421 1422 if (params->ht_capa) 1423 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1424 params->ht_capa, sta); 1425 1426 /* VHT can override some HT caps such as the A-MSDU max length */ 1427 if (params->vht_capa) 1428 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1429 params->vht_capa, sta); 1430 1431 if (params->he_capa) 1432 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1433 (void *)params->he_capa, 1434 params->he_capa_len, sta); 1435 1436 if (params->opmode_notif_used) { 1437 /* returned value is only needed for rc update, but the 1438 * rc isn't initialized here yet, so ignore it 1439 */ 1440 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1441 sband->band); 1442 } 1443 1444 if (params->support_p2p_ps >= 0) 1445 sta->sta.support_p2p_ps = params->support_p2p_ps; 1446 1447 if (ieee80211_vif_is_mesh(&sdata->vif)) 1448 sta_apply_mesh_params(local, sta, params); 1449 1450 /* set the STA state after all sta info from usermode has been set */ 1451 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1452 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1453 ret = sta_apply_auth_flags(local, sta, mask, set); 1454 if (ret) 1455 return ret; 1456 } 1457 1458 return 0; 1459 } 1460 1461 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1462 const u8 *mac, 1463 struct station_parameters *params) 1464 { 1465 struct ieee80211_local *local = wiphy_priv(wiphy); 1466 struct sta_info *sta; 1467 struct ieee80211_sub_if_data *sdata; 1468 int err; 1469 int layer2_update; 1470 1471 if (params->vlan) { 1472 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1473 1474 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1475 sdata->vif.type != NL80211_IFTYPE_AP) 1476 return -EINVAL; 1477 } else 1478 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1479 1480 if (ether_addr_equal(mac, sdata->vif.addr)) 1481 return -EINVAL; 1482 1483 if (is_multicast_ether_addr(mac)) 1484 return -EINVAL; 1485 1486 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1487 if (!sta) 1488 return -ENOMEM; 1489 1490 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1491 sta->sta.tdls = true; 1492 1493 err = sta_apply_parameters(local, sta, params); 1494 if (err) { 1495 sta_info_free(local, sta); 1496 return err; 1497 } 1498 1499 /* 1500 * for TDLS and for unassociated station, rate control should be 1501 * initialized only when rates are known and station is marked 1502 * authorized/associated 1503 */ 1504 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1505 test_sta_flag(sta, WLAN_STA_ASSOC)) 1506 rate_control_rate_init(sta); 1507 1508 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1509 sdata->vif.type == NL80211_IFTYPE_AP; 1510 1511 err = sta_info_insert_rcu(sta); 1512 if (err) { 1513 rcu_read_unlock(); 1514 return err; 1515 } 1516 1517 if (layer2_update) 1518 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1519 1520 rcu_read_unlock(); 1521 1522 return 0; 1523 } 1524 1525 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1526 struct station_del_parameters *params) 1527 { 1528 struct ieee80211_sub_if_data *sdata; 1529 1530 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1531 1532 if (params->mac) 1533 return sta_info_destroy_addr_bss(sdata, params->mac); 1534 1535 sta_info_flush(sdata); 1536 return 0; 1537 } 1538 1539 static int ieee80211_change_station(struct wiphy *wiphy, 1540 struct net_device *dev, const u8 *mac, 1541 struct station_parameters *params) 1542 { 1543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1544 struct ieee80211_local *local = wiphy_priv(wiphy); 1545 struct sta_info *sta; 1546 struct ieee80211_sub_if_data *vlansdata; 1547 enum cfg80211_station_type statype; 1548 int err; 1549 1550 mutex_lock(&local->sta_mtx); 1551 1552 sta = sta_info_get_bss(sdata, mac); 1553 if (!sta) { 1554 err = -ENOENT; 1555 goto out_err; 1556 } 1557 1558 switch (sdata->vif.type) { 1559 case NL80211_IFTYPE_MESH_POINT: 1560 if (sdata->u.mesh.user_mpm) 1561 statype = CFG80211_STA_MESH_PEER_USER; 1562 else 1563 statype = CFG80211_STA_MESH_PEER_KERNEL; 1564 break; 1565 case NL80211_IFTYPE_ADHOC: 1566 statype = CFG80211_STA_IBSS; 1567 break; 1568 case NL80211_IFTYPE_STATION: 1569 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1570 statype = CFG80211_STA_AP_STA; 1571 break; 1572 } 1573 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1574 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1575 else 1576 statype = CFG80211_STA_TDLS_PEER_SETUP; 1577 break; 1578 case NL80211_IFTYPE_AP: 1579 case NL80211_IFTYPE_AP_VLAN: 1580 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1581 statype = CFG80211_STA_AP_CLIENT; 1582 else 1583 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1584 break; 1585 default: 1586 err = -EOPNOTSUPP; 1587 goto out_err; 1588 } 1589 1590 err = cfg80211_check_station_change(wiphy, params, statype); 1591 if (err) 1592 goto out_err; 1593 1594 if (params->vlan && params->vlan != sta->sdata->dev) { 1595 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1596 1597 if (params->vlan->ieee80211_ptr->use_4addr) { 1598 if (vlansdata->u.vlan.sta) { 1599 err = -EBUSY; 1600 goto out_err; 1601 } 1602 1603 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1604 __ieee80211_check_fast_rx_iface(vlansdata); 1605 } 1606 1607 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1608 sta->sdata->u.vlan.sta) 1609 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1610 1611 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1612 ieee80211_vif_dec_num_mcast(sta->sdata); 1613 1614 sta->sdata = vlansdata; 1615 ieee80211_check_fast_xmit(sta); 1616 1617 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1618 ieee80211_vif_inc_num_mcast(sta->sdata); 1619 1620 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1621 } 1622 1623 err = sta_apply_parameters(local, sta, params); 1624 if (err) 1625 goto out_err; 1626 1627 mutex_unlock(&local->sta_mtx); 1628 1629 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1630 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1631 sta->known_smps_mode != sta->sdata->bss->req_smps && 1632 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1633 sta_info_tx_streams(sta) != 1) { 1634 ht_dbg(sta->sdata, 1635 "%pM just authorized and MIMO capable - update SMPS\n", 1636 sta->sta.addr); 1637 ieee80211_send_smps_action(sta->sdata, 1638 sta->sdata->bss->req_smps, 1639 sta->sta.addr, 1640 sta->sdata->vif.bss_conf.bssid); 1641 } 1642 1643 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1644 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1645 ieee80211_recalc_ps(local); 1646 ieee80211_recalc_ps_vif(sdata); 1647 } 1648 1649 return 0; 1650 out_err: 1651 mutex_unlock(&local->sta_mtx); 1652 return err; 1653 } 1654 1655 #ifdef CONFIG_MAC80211_MESH 1656 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1657 const u8 *dst, const u8 *next_hop) 1658 { 1659 struct ieee80211_sub_if_data *sdata; 1660 struct mesh_path *mpath; 1661 struct sta_info *sta; 1662 1663 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1664 1665 rcu_read_lock(); 1666 sta = sta_info_get(sdata, next_hop); 1667 if (!sta) { 1668 rcu_read_unlock(); 1669 return -ENOENT; 1670 } 1671 1672 mpath = mesh_path_add(sdata, dst); 1673 if (IS_ERR(mpath)) { 1674 rcu_read_unlock(); 1675 return PTR_ERR(mpath); 1676 } 1677 1678 mesh_path_fix_nexthop(mpath, sta); 1679 1680 rcu_read_unlock(); 1681 return 0; 1682 } 1683 1684 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1685 const u8 *dst) 1686 { 1687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1688 1689 if (dst) 1690 return mesh_path_del(sdata, dst); 1691 1692 mesh_path_flush_by_iface(sdata); 1693 return 0; 1694 } 1695 1696 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1697 const u8 *dst, const u8 *next_hop) 1698 { 1699 struct ieee80211_sub_if_data *sdata; 1700 struct mesh_path *mpath; 1701 struct sta_info *sta; 1702 1703 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1704 1705 rcu_read_lock(); 1706 1707 sta = sta_info_get(sdata, next_hop); 1708 if (!sta) { 1709 rcu_read_unlock(); 1710 return -ENOENT; 1711 } 1712 1713 mpath = mesh_path_lookup(sdata, dst); 1714 if (!mpath) { 1715 rcu_read_unlock(); 1716 return -ENOENT; 1717 } 1718 1719 mesh_path_fix_nexthop(mpath, sta); 1720 1721 rcu_read_unlock(); 1722 return 0; 1723 } 1724 1725 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1726 struct mpath_info *pinfo) 1727 { 1728 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1729 1730 if (next_hop_sta) 1731 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1732 else 1733 eth_zero_addr(next_hop); 1734 1735 memset(pinfo, 0, sizeof(*pinfo)); 1736 1737 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1738 1739 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1740 MPATH_INFO_SN | 1741 MPATH_INFO_METRIC | 1742 MPATH_INFO_EXPTIME | 1743 MPATH_INFO_DISCOVERY_TIMEOUT | 1744 MPATH_INFO_DISCOVERY_RETRIES | 1745 MPATH_INFO_FLAGS; 1746 1747 pinfo->frame_qlen = mpath->frame_queue.qlen; 1748 pinfo->sn = mpath->sn; 1749 pinfo->metric = mpath->metric; 1750 if (time_before(jiffies, mpath->exp_time)) 1751 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1752 pinfo->discovery_timeout = 1753 jiffies_to_msecs(mpath->discovery_timeout); 1754 pinfo->discovery_retries = mpath->discovery_retries; 1755 if (mpath->flags & MESH_PATH_ACTIVE) 1756 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1757 if (mpath->flags & MESH_PATH_RESOLVING) 1758 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1759 if (mpath->flags & MESH_PATH_SN_VALID) 1760 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1761 if (mpath->flags & MESH_PATH_FIXED) 1762 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1763 if (mpath->flags & MESH_PATH_RESOLVED) 1764 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1765 } 1766 1767 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1768 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1769 1770 { 1771 struct ieee80211_sub_if_data *sdata; 1772 struct mesh_path *mpath; 1773 1774 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1775 1776 rcu_read_lock(); 1777 mpath = mesh_path_lookup(sdata, dst); 1778 if (!mpath) { 1779 rcu_read_unlock(); 1780 return -ENOENT; 1781 } 1782 memcpy(dst, mpath->dst, ETH_ALEN); 1783 mpath_set_pinfo(mpath, next_hop, pinfo); 1784 rcu_read_unlock(); 1785 return 0; 1786 } 1787 1788 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1789 int idx, u8 *dst, u8 *next_hop, 1790 struct mpath_info *pinfo) 1791 { 1792 struct ieee80211_sub_if_data *sdata; 1793 struct mesh_path *mpath; 1794 1795 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1796 1797 rcu_read_lock(); 1798 mpath = mesh_path_lookup_by_idx(sdata, idx); 1799 if (!mpath) { 1800 rcu_read_unlock(); 1801 return -ENOENT; 1802 } 1803 memcpy(dst, mpath->dst, ETH_ALEN); 1804 mpath_set_pinfo(mpath, next_hop, pinfo); 1805 rcu_read_unlock(); 1806 return 0; 1807 } 1808 1809 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1810 struct mpath_info *pinfo) 1811 { 1812 memset(pinfo, 0, sizeof(*pinfo)); 1813 memcpy(mpp, mpath->mpp, ETH_ALEN); 1814 1815 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1816 } 1817 1818 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1819 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1820 1821 { 1822 struct ieee80211_sub_if_data *sdata; 1823 struct mesh_path *mpath; 1824 1825 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1826 1827 rcu_read_lock(); 1828 mpath = mpp_path_lookup(sdata, dst); 1829 if (!mpath) { 1830 rcu_read_unlock(); 1831 return -ENOENT; 1832 } 1833 memcpy(dst, mpath->dst, ETH_ALEN); 1834 mpp_set_pinfo(mpath, mpp, pinfo); 1835 rcu_read_unlock(); 1836 return 0; 1837 } 1838 1839 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1840 int idx, u8 *dst, u8 *mpp, 1841 struct mpath_info *pinfo) 1842 { 1843 struct ieee80211_sub_if_data *sdata; 1844 struct mesh_path *mpath; 1845 1846 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1847 1848 rcu_read_lock(); 1849 mpath = mpp_path_lookup_by_idx(sdata, idx); 1850 if (!mpath) { 1851 rcu_read_unlock(); 1852 return -ENOENT; 1853 } 1854 memcpy(dst, mpath->dst, ETH_ALEN); 1855 mpp_set_pinfo(mpath, mpp, pinfo); 1856 rcu_read_unlock(); 1857 return 0; 1858 } 1859 1860 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1861 struct net_device *dev, 1862 struct mesh_config *conf) 1863 { 1864 struct ieee80211_sub_if_data *sdata; 1865 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1866 1867 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1868 return 0; 1869 } 1870 1871 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1872 { 1873 return (mask >> (parm-1)) & 0x1; 1874 } 1875 1876 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1877 const struct mesh_setup *setup) 1878 { 1879 u8 *new_ie; 1880 const u8 *old_ie; 1881 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1882 struct ieee80211_sub_if_data, u.mesh); 1883 1884 /* allocate information elements */ 1885 new_ie = NULL; 1886 old_ie = ifmsh->ie; 1887 1888 if (setup->ie_len) { 1889 new_ie = kmemdup(setup->ie, setup->ie_len, 1890 GFP_KERNEL); 1891 if (!new_ie) 1892 return -ENOMEM; 1893 } 1894 ifmsh->ie_len = setup->ie_len; 1895 ifmsh->ie = new_ie; 1896 kfree(old_ie); 1897 1898 /* now copy the rest of the setup parameters */ 1899 ifmsh->mesh_id_len = setup->mesh_id_len; 1900 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1901 ifmsh->mesh_sp_id = setup->sync_method; 1902 ifmsh->mesh_pp_id = setup->path_sel_proto; 1903 ifmsh->mesh_pm_id = setup->path_metric; 1904 ifmsh->user_mpm = setup->user_mpm; 1905 ifmsh->mesh_auth_id = setup->auth_id; 1906 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1907 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1908 if (setup->is_authenticated) 1909 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1910 if (setup->is_secure) 1911 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1912 1913 /* mcast rate setting in Mesh Node */ 1914 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1915 sizeof(setup->mcast_rate)); 1916 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1917 1918 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1919 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1920 1921 return 0; 1922 } 1923 1924 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1925 struct net_device *dev, u32 mask, 1926 const struct mesh_config *nconf) 1927 { 1928 struct mesh_config *conf; 1929 struct ieee80211_sub_if_data *sdata; 1930 struct ieee80211_if_mesh *ifmsh; 1931 1932 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1933 ifmsh = &sdata->u.mesh; 1934 1935 /* Set the config options which we are interested in setting */ 1936 conf = &(sdata->u.mesh.mshcfg); 1937 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1938 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1939 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1940 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1941 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1942 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1944 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1945 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1946 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1947 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1948 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1949 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1950 conf->element_ttl = nconf->element_ttl; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1952 if (ifmsh->user_mpm) 1953 return -EBUSY; 1954 conf->auto_open_plinks = nconf->auto_open_plinks; 1955 } 1956 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1957 conf->dot11MeshNbrOffsetMaxNeighbor = 1958 nconf->dot11MeshNbrOffsetMaxNeighbor; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1960 conf->dot11MeshHWMPmaxPREQretries = 1961 nconf->dot11MeshHWMPmaxPREQretries; 1962 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1963 conf->path_refresh_time = nconf->path_refresh_time; 1964 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1965 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1966 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1967 conf->dot11MeshHWMPactivePathTimeout = 1968 nconf->dot11MeshHWMPactivePathTimeout; 1969 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1970 conf->dot11MeshHWMPpreqMinInterval = 1971 nconf->dot11MeshHWMPpreqMinInterval; 1972 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1973 conf->dot11MeshHWMPperrMinInterval = 1974 nconf->dot11MeshHWMPperrMinInterval; 1975 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1976 mask)) 1977 conf->dot11MeshHWMPnetDiameterTraversalTime = 1978 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1980 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1981 ieee80211_mesh_root_setup(ifmsh); 1982 } 1983 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1984 /* our current gate announcement implementation rides on root 1985 * announcements, so require this ifmsh to also be a root node 1986 * */ 1987 if (nconf->dot11MeshGateAnnouncementProtocol && 1988 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1989 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1990 ieee80211_mesh_root_setup(ifmsh); 1991 } 1992 conf->dot11MeshGateAnnouncementProtocol = 1993 nconf->dot11MeshGateAnnouncementProtocol; 1994 } 1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1996 conf->dot11MeshHWMPRannInterval = 1997 nconf->dot11MeshHWMPRannInterval; 1998 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1999 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2000 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2001 /* our RSSI threshold implementation is supported only for 2002 * devices that report signal in dBm. 2003 */ 2004 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2005 return -ENOTSUPP; 2006 conf->rssi_threshold = nconf->rssi_threshold; 2007 } 2008 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2009 conf->ht_opmode = nconf->ht_opmode; 2010 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2011 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2012 } 2013 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2014 conf->dot11MeshHWMPactivePathToRootTimeout = 2015 nconf->dot11MeshHWMPactivePathToRootTimeout; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2017 conf->dot11MeshHWMProotInterval = 2018 nconf->dot11MeshHWMProotInterval; 2019 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2020 conf->dot11MeshHWMPconfirmationInterval = 2021 nconf->dot11MeshHWMPconfirmationInterval; 2022 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2023 conf->power_mode = nconf->power_mode; 2024 ieee80211_mps_local_status_update(sdata); 2025 } 2026 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2027 conf->dot11MeshAwakeWindowDuration = 2028 nconf->dot11MeshAwakeWindowDuration; 2029 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2030 conf->plink_timeout = nconf->plink_timeout; 2031 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2032 return 0; 2033 } 2034 2035 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2036 const struct mesh_config *conf, 2037 const struct mesh_setup *setup) 2038 { 2039 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2040 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2041 int err; 2042 2043 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2044 err = copy_mesh_setup(ifmsh, setup); 2045 if (err) 2046 return err; 2047 2048 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2049 2050 /* can mesh use other SMPS modes? */ 2051 sdata->smps_mode = IEEE80211_SMPS_OFF; 2052 sdata->needed_rx_chains = sdata->local->rx_chains; 2053 2054 mutex_lock(&sdata->local->mtx); 2055 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2056 IEEE80211_CHANCTX_SHARED); 2057 mutex_unlock(&sdata->local->mtx); 2058 if (err) 2059 return err; 2060 2061 return ieee80211_start_mesh(sdata); 2062 } 2063 2064 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2065 { 2066 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2067 2068 ieee80211_stop_mesh(sdata); 2069 mutex_lock(&sdata->local->mtx); 2070 ieee80211_vif_release_channel(sdata); 2071 mutex_unlock(&sdata->local->mtx); 2072 2073 return 0; 2074 } 2075 #endif 2076 2077 static int ieee80211_change_bss(struct wiphy *wiphy, 2078 struct net_device *dev, 2079 struct bss_parameters *params) 2080 { 2081 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2082 struct ieee80211_supported_band *sband; 2083 u32 changed = 0; 2084 2085 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2086 return -ENOENT; 2087 2088 sband = ieee80211_get_sband(sdata); 2089 if (!sband) 2090 return -EINVAL; 2091 2092 if (params->use_cts_prot >= 0) { 2093 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2094 changed |= BSS_CHANGED_ERP_CTS_PROT; 2095 } 2096 if (params->use_short_preamble >= 0) { 2097 sdata->vif.bss_conf.use_short_preamble = 2098 params->use_short_preamble; 2099 changed |= BSS_CHANGED_ERP_PREAMBLE; 2100 } 2101 2102 if (!sdata->vif.bss_conf.use_short_slot && 2103 sband->band == NL80211_BAND_5GHZ) { 2104 sdata->vif.bss_conf.use_short_slot = true; 2105 changed |= BSS_CHANGED_ERP_SLOT; 2106 } 2107 2108 if (params->use_short_slot_time >= 0) { 2109 sdata->vif.bss_conf.use_short_slot = 2110 params->use_short_slot_time; 2111 changed |= BSS_CHANGED_ERP_SLOT; 2112 } 2113 2114 if (params->basic_rates) { 2115 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2116 wiphy->bands[sband->band], 2117 params->basic_rates, 2118 params->basic_rates_len, 2119 &sdata->vif.bss_conf.basic_rates); 2120 changed |= BSS_CHANGED_BASIC_RATES; 2121 ieee80211_check_rate_mask(sdata); 2122 } 2123 2124 if (params->ap_isolate >= 0) { 2125 if (params->ap_isolate) 2126 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2127 else 2128 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2129 ieee80211_check_fast_rx_iface(sdata); 2130 } 2131 2132 if (params->ht_opmode >= 0) { 2133 sdata->vif.bss_conf.ht_operation_mode = 2134 (u16) params->ht_opmode; 2135 changed |= BSS_CHANGED_HT; 2136 } 2137 2138 if (params->p2p_ctwindow >= 0) { 2139 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2140 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2141 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2142 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2143 changed |= BSS_CHANGED_P2P_PS; 2144 } 2145 2146 if (params->p2p_opp_ps > 0) { 2147 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2148 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2149 changed |= BSS_CHANGED_P2P_PS; 2150 } else if (params->p2p_opp_ps == 0) { 2151 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2152 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2153 changed |= BSS_CHANGED_P2P_PS; 2154 } 2155 2156 ieee80211_bss_info_change_notify(sdata, changed); 2157 2158 return 0; 2159 } 2160 2161 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2162 struct net_device *dev, 2163 struct ieee80211_txq_params *params) 2164 { 2165 struct ieee80211_local *local = wiphy_priv(wiphy); 2166 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2167 struct ieee80211_tx_queue_params p; 2168 2169 if (!local->ops->conf_tx) 2170 return -EOPNOTSUPP; 2171 2172 if (local->hw.queues < IEEE80211_NUM_ACS) 2173 return -EOPNOTSUPP; 2174 2175 memset(&p, 0, sizeof(p)); 2176 p.aifs = params->aifs; 2177 p.cw_max = params->cwmax; 2178 p.cw_min = params->cwmin; 2179 p.txop = params->txop; 2180 2181 /* 2182 * Setting tx queue params disables u-apsd because it's only 2183 * called in master mode. 2184 */ 2185 p.uapsd = false; 2186 2187 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2188 2189 sdata->tx_conf[params->ac] = p; 2190 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2191 wiphy_debug(local->hw.wiphy, 2192 "failed to set TX queue parameters for AC %d\n", 2193 params->ac); 2194 return -EINVAL; 2195 } 2196 2197 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2198 2199 return 0; 2200 } 2201 2202 #ifdef CONFIG_PM 2203 static int ieee80211_suspend(struct wiphy *wiphy, 2204 struct cfg80211_wowlan *wowlan) 2205 { 2206 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2207 } 2208 2209 static int ieee80211_resume(struct wiphy *wiphy) 2210 { 2211 return __ieee80211_resume(wiphy_priv(wiphy)); 2212 } 2213 #else 2214 #define ieee80211_suspend NULL 2215 #define ieee80211_resume NULL 2216 #endif 2217 2218 static int ieee80211_scan(struct wiphy *wiphy, 2219 struct cfg80211_scan_request *req) 2220 { 2221 struct ieee80211_sub_if_data *sdata; 2222 2223 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2224 2225 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2226 case NL80211_IFTYPE_STATION: 2227 case NL80211_IFTYPE_ADHOC: 2228 case NL80211_IFTYPE_MESH_POINT: 2229 case NL80211_IFTYPE_P2P_CLIENT: 2230 case NL80211_IFTYPE_P2P_DEVICE: 2231 break; 2232 case NL80211_IFTYPE_P2P_GO: 2233 if (sdata->local->ops->hw_scan) 2234 break; 2235 /* 2236 * FIXME: implement NoA while scanning in software, 2237 * for now fall through to allow scanning only when 2238 * beaconing hasn't been configured yet 2239 */ 2240 /* fall through */ 2241 case NL80211_IFTYPE_AP: 2242 /* 2243 * If the scan has been forced (and the driver supports 2244 * forcing), don't care about being beaconing already. 2245 * This will create problems to the attached stations (e.g. all 2246 * the frames sent while scanning on other channel will be 2247 * lost) 2248 */ 2249 if (sdata->u.ap.beacon && 2250 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2251 !(req->flags & NL80211_SCAN_FLAG_AP))) 2252 return -EOPNOTSUPP; 2253 break; 2254 case NL80211_IFTYPE_NAN: 2255 default: 2256 return -EOPNOTSUPP; 2257 } 2258 2259 return ieee80211_request_scan(sdata, req); 2260 } 2261 2262 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2263 { 2264 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2265 } 2266 2267 static int 2268 ieee80211_sched_scan_start(struct wiphy *wiphy, 2269 struct net_device *dev, 2270 struct cfg80211_sched_scan_request *req) 2271 { 2272 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2273 2274 if (!sdata->local->ops->sched_scan_start) 2275 return -EOPNOTSUPP; 2276 2277 return ieee80211_request_sched_scan_start(sdata, req); 2278 } 2279 2280 static int 2281 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2282 u64 reqid) 2283 { 2284 struct ieee80211_local *local = wiphy_priv(wiphy); 2285 2286 if (!local->ops->sched_scan_stop) 2287 return -EOPNOTSUPP; 2288 2289 return ieee80211_request_sched_scan_stop(local); 2290 } 2291 2292 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2293 struct cfg80211_auth_request *req) 2294 { 2295 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2296 } 2297 2298 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2299 struct cfg80211_assoc_request *req) 2300 { 2301 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2302 } 2303 2304 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2305 struct cfg80211_deauth_request *req) 2306 { 2307 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2308 } 2309 2310 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2311 struct cfg80211_disassoc_request *req) 2312 { 2313 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2314 } 2315 2316 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2317 struct cfg80211_ibss_params *params) 2318 { 2319 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2320 } 2321 2322 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2323 { 2324 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2325 } 2326 2327 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2328 struct ocb_setup *setup) 2329 { 2330 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2331 } 2332 2333 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2334 { 2335 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2336 } 2337 2338 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2339 int rate[NUM_NL80211_BANDS]) 2340 { 2341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2342 2343 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2344 sizeof(int) * NUM_NL80211_BANDS); 2345 2346 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2347 2348 return 0; 2349 } 2350 2351 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2352 { 2353 struct ieee80211_local *local = wiphy_priv(wiphy); 2354 int err; 2355 2356 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2357 ieee80211_check_fast_xmit_all(local); 2358 2359 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2360 2361 if (err) { 2362 ieee80211_check_fast_xmit_all(local); 2363 return err; 2364 } 2365 } 2366 2367 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2368 (changed & WIPHY_PARAM_DYN_ACK)) { 2369 s16 coverage_class; 2370 2371 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2372 wiphy->coverage_class : -1; 2373 err = drv_set_coverage_class(local, coverage_class); 2374 2375 if (err) 2376 return err; 2377 } 2378 2379 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2380 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2381 2382 if (err) 2383 return err; 2384 } 2385 2386 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2387 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2388 return -EINVAL; 2389 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2390 } 2391 if (changed & WIPHY_PARAM_RETRY_LONG) { 2392 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2393 return -EINVAL; 2394 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2395 } 2396 if (changed & 2397 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2398 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2399 2400 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2401 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2402 WIPHY_PARAM_TXQ_QUANTUM)) 2403 ieee80211_txq_set_params(local); 2404 2405 return 0; 2406 } 2407 2408 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2409 struct wireless_dev *wdev, 2410 enum nl80211_tx_power_setting type, int mbm) 2411 { 2412 struct ieee80211_local *local = wiphy_priv(wiphy); 2413 struct ieee80211_sub_if_data *sdata; 2414 enum nl80211_tx_power_setting txp_type = type; 2415 bool update_txp_type = false; 2416 bool has_monitor = false; 2417 2418 if (wdev) { 2419 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2420 2421 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2422 sdata = rtnl_dereference(local->monitor_sdata); 2423 if (!sdata) 2424 return -EOPNOTSUPP; 2425 } 2426 2427 switch (type) { 2428 case NL80211_TX_POWER_AUTOMATIC: 2429 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2430 txp_type = NL80211_TX_POWER_LIMITED; 2431 break; 2432 case NL80211_TX_POWER_LIMITED: 2433 case NL80211_TX_POWER_FIXED: 2434 if (mbm < 0 || (mbm % 100)) 2435 return -EOPNOTSUPP; 2436 sdata->user_power_level = MBM_TO_DBM(mbm); 2437 break; 2438 } 2439 2440 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2441 update_txp_type = true; 2442 sdata->vif.bss_conf.txpower_type = txp_type; 2443 } 2444 2445 ieee80211_recalc_txpower(sdata, update_txp_type); 2446 2447 return 0; 2448 } 2449 2450 switch (type) { 2451 case NL80211_TX_POWER_AUTOMATIC: 2452 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2453 txp_type = NL80211_TX_POWER_LIMITED; 2454 break; 2455 case NL80211_TX_POWER_LIMITED: 2456 case NL80211_TX_POWER_FIXED: 2457 if (mbm < 0 || (mbm % 100)) 2458 return -EOPNOTSUPP; 2459 local->user_power_level = MBM_TO_DBM(mbm); 2460 break; 2461 } 2462 2463 mutex_lock(&local->iflist_mtx); 2464 list_for_each_entry(sdata, &local->interfaces, list) { 2465 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2466 has_monitor = true; 2467 continue; 2468 } 2469 sdata->user_power_level = local->user_power_level; 2470 if (txp_type != sdata->vif.bss_conf.txpower_type) 2471 update_txp_type = true; 2472 sdata->vif.bss_conf.txpower_type = txp_type; 2473 } 2474 list_for_each_entry(sdata, &local->interfaces, list) { 2475 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2476 continue; 2477 ieee80211_recalc_txpower(sdata, update_txp_type); 2478 } 2479 mutex_unlock(&local->iflist_mtx); 2480 2481 if (has_monitor) { 2482 sdata = rtnl_dereference(local->monitor_sdata); 2483 if (sdata) { 2484 sdata->user_power_level = local->user_power_level; 2485 if (txp_type != sdata->vif.bss_conf.txpower_type) 2486 update_txp_type = true; 2487 sdata->vif.bss_conf.txpower_type = txp_type; 2488 2489 ieee80211_recalc_txpower(sdata, update_txp_type); 2490 } 2491 } 2492 2493 return 0; 2494 } 2495 2496 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2497 struct wireless_dev *wdev, 2498 int *dbm) 2499 { 2500 struct ieee80211_local *local = wiphy_priv(wiphy); 2501 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2502 2503 if (local->ops->get_txpower) 2504 return drv_get_txpower(local, sdata, dbm); 2505 2506 if (!local->use_chanctx) 2507 *dbm = local->hw.conf.power_level; 2508 else 2509 *dbm = sdata->vif.bss_conf.txpower; 2510 2511 return 0; 2512 } 2513 2514 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2515 const u8 *addr) 2516 { 2517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2518 2519 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2520 2521 return 0; 2522 } 2523 2524 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2525 { 2526 struct ieee80211_local *local = wiphy_priv(wiphy); 2527 2528 drv_rfkill_poll(local); 2529 } 2530 2531 #ifdef CONFIG_NL80211_TESTMODE 2532 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2533 struct wireless_dev *wdev, 2534 void *data, int len) 2535 { 2536 struct ieee80211_local *local = wiphy_priv(wiphy); 2537 struct ieee80211_vif *vif = NULL; 2538 2539 if (!local->ops->testmode_cmd) 2540 return -EOPNOTSUPP; 2541 2542 if (wdev) { 2543 struct ieee80211_sub_if_data *sdata; 2544 2545 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2546 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2547 vif = &sdata->vif; 2548 } 2549 2550 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2551 } 2552 2553 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2554 struct sk_buff *skb, 2555 struct netlink_callback *cb, 2556 void *data, int len) 2557 { 2558 struct ieee80211_local *local = wiphy_priv(wiphy); 2559 2560 if (!local->ops->testmode_dump) 2561 return -EOPNOTSUPP; 2562 2563 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2564 } 2565 #endif 2566 2567 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2568 enum ieee80211_smps_mode smps_mode) 2569 { 2570 struct sta_info *sta; 2571 enum ieee80211_smps_mode old_req; 2572 2573 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2574 return -EINVAL; 2575 2576 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2577 return 0; 2578 2579 old_req = sdata->u.ap.req_smps; 2580 sdata->u.ap.req_smps = smps_mode; 2581 2582 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2583 if (old_req == smps_mode || 2584 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2585 return 0; 2586 2587 ht_dbg(sdata, 2588 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2589 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2590 2591 mutex_lock(&sdata->local->sta_mtx); 2592 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2593 /* 2594 * Only stations associated to our AP and 2595 * associated VLANs 2596 */ 2597 if (sta->sdata->bss != &sdata->u.ap) 2598 continue; 2599 2600 /* This station doesn't support MIMO - skip it */ 2601 if (sta_info_tx_streams(sta) == 1) 2602 continue; 2603 2604 /* 2605 * Don't wake up a STA just to send the action frame 2606 * unless we are getting more restrictive. 2607 */ 2608 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2609 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2610 smps_mode)) { 2611 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2612 sta->sta.addr); 2613 continue; 2614 } 2615 2616 /* 2617 * If the STA is not authorized, wait until it gets 2618 * authorized and the action frame will be sent then. 2619 */ 2620 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2621 continue; 2622 2623 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2624 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2625 sdata->vif.bss_conf.bssid); 2626 } 2627 mutex_unlock(&sdata->local->sta_mtx); 2628 2629 sdata->smps_mode = smps_mode; 2630 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2631 2632 return 0; 2633 } 2634 2635 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2636 enum ieee80211_smps_mode smps_mode) 2637 { 2638 const u8 *ap; 2639 enum ieee80211_smps_mode old_req; 2640 int err; 2641 struct sta_info *sta; 2642 bool tdls_peer_found = false; 2643 2644 lockdep_assert_held(&sdata->wdev.mtx); 2645 2646 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2647 return -EINVAL; 2648 2649 old_req = sdata->u.mgd.req_smps; 2650 sdata->u.mgd.req_smps = smps_mode; 2651 2652 if (old_req == smps_mode && 2653 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2654 return 0; 2655 2656 /* 2657 * If not associated, or current association is not an HT 2658 * association, there's no need to do anything, just store 2659 * the new value until we associate. 2660 */ 2661 if (!sdata->u.mgd.associated || 2662 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2663 return 0; 2664 2665 ap = sdata->u.mgd.associated->bssid; 2666 2667 rcu_read_lock(); 2668 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2669 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2670 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2671 continue; 2672 2673 tdls_peer_found = true; 2674 break; 2675 } 2676 rcu_read_unlock(); 2677 2678 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2679 if (tdls_peer_found || !sdata->u.mgd.powersave) 2680 smps_mode = IEEE80211_SMPS_OFF; 2681 else 2682 smps_mode = IEEE80211_SMPS_DYNAMIC; 2683 } 2684 2685 /* send SM PS frame to AP */ 2686 err = ieee80211_send_smps_action(sdata, smps_mode, 2687 ap, ap); 2688 if (err) 2689 sdata->u.mgd.req_smps = old_req; 2690 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2691 ieee80211_teardown_tdls_peers(sdata); 2692 2693 return err; 2694 } 2695 2696 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2697 bool enabled, int timeout) 2698 { 2699 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2700 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2701 2702 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2703 return -EOPNOTSUPP; 2704 2705 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2706 return -EOPNOTSUPP; 2707 2708 if (enabled == sdata->u.mgd.powersave && 2709 timeout == local->dynamic_ps_forced_timeout) 2710 return 0; 2711 2712 sdata->u.mgd.powersave = enabled; 2713 local->dynamic_ps_forced_timeout = timeout; 2714 2715 /* no change, but if automatic follow powersave */ 2716 sdata_lock(sdata); 2717 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2718 sdata_unlock(sdata); 2719 2720 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2721 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2722 2723 ieee80211_recalc_ps(local); 2724 ieee80211_recalc_ps_vif(sdata); 2725 ieee80211_check_fast_rx_iface(sdata); 2726 2727 return 0; 2728 } 2729 2730 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2731 struct net_device *dev, 2732 s32 rssi_thold, u32 rssi_hyst) 2733 { 2734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2735 struct ieee80211_vif *vif = &sdata->vif; 2736 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2737 2738 if (rssi_thold == bss_conf->cqm_rssi_thold && 2739 rssi_hyst == bss_conf->cqm_rssi_hyst) 2740 return 0; 2741 2742 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2743 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2744 return -EOPNOTSUPP; 2745 2746 bss_conf->cqm_rssi_thold = rssi_thold; 2747 bss_conf->cqm_rssi_hyst = rssi_hyst; 2748 bss_conf->cqm_rssi_low = 0; 2749 bss_conf->cqm_rssi_high = 0; 2750 sdata->u.mgd.last_cqm_event_signal = 0; 2751 2752 /* tell the driver upon association, unless already associated */ 2753 if (sdata->u.mgd.associated && 2754 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2755 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2756 2757 return 0; 2758 } 2759 2760 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2761 struct net_device *dev, 2762 s32 rssi_low, s32 rssi_high) 2763 { 2764 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2765 struct ieee80211_vif *vif = &sdata->vif; 2766 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2767 2768 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2769 return -EOPNOTSUPP; 2770 2771 bss_conf->cqm_rssi_low = rssi_low; 2772 bss_conf->cqm_rssi_high = rssi_high; 2773 bss_conf->cqm_rssi_thold = 0; 2774 bss_conf->cqm_rssi_hyst = 0; 2775 sdata->u.mgd.last_cqm_event_signal = 0; 2776 2777 /* tell the driver upon association, unless already associated */ 2778 if (sdata->u.mgd.associated && 2779 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2780 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2781 2782 return 0; 2783 } 2784 2785 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2786 struct net_device *dev, 2787 const u8 *addr, 2788 const struct cfg80211_bitrate_mask *mask) 2789 { 2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2791 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2792 int i, ret; 2793 2794 if (!ieee80211_sdata_running(sdata)) 2795 return -ENETDOWN; 2796 2797 /* 2798 * If active validate the setting and reject it if it doesn't leave 2799 * at least one basic rate usable, since we really have to be able 2800 * to send something, and if we're an AP we have to be able to do 2801 * so at a basic rate so that all clients can receive it. 2802 */ 2803 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2804 sdata->vif.bss_conf.chandef.chan) { 2805 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2806 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2807 2808 if (!(mask->control[band].legacy & basic_rates)) 2809 return -EINVAL; 2810 } 2811 2812 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2813 ret = drv_set_bitrate_mask(local, sdata, mask); 2814 if (ret) 2815 return ret; 2816 } 2817 2818 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2819 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2820 int j; 2821 2822 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2823 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2824 sizeof(mask->control[i].ht_mcs)); 2825 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2826 mask->control[i].vht_mcs, 2827 sizeof(mask->control[i].vht_mcs)); 2828 2829 sdata->rc_has_mcs_mask[i] = false; 2830 sdata->rc_has_vht_mcs_mask[i] = false; 2831 if (!sband) 2832 continue; 2833 2834 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2835 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2836 sdata->rc_has_mcs_mask[i] = true; 2837 break; 2838 } 2839 } 2840 2841 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2842 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2843 sdata->rc_has_vht_mcs_mask[i] = true; 2844 break; 2845 } 2846 } 2847 } 2848 2849 return 0; 2850 } 2851 2852 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2853 struct net_device *dev, 2854 struct cfg80211_chan_def *chandef, 2855 u32 cac_time_ms) 2856 { 2857 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2858 struct ieee80211_local *local = sdata->local; 2859 int err; 2860 2861 mutex_lock(&local->mtx); 2862 if (!list_empty(&local->roc_list) || local->scanning) { 2863 err = -EBUSY; 2864 goto out_unlock; 2865 } 2866 2867 /* whatever, but channel contexts should not complain about that one */ 2868 sdata->smps_mode = IEEE80211_SMPS_OFF; 2869 sdata->needed_rx_chains = local->rx_chains; 2870 2871 err = ieee80211_vif_use_channel(sdata, chandef, 2872 IEEE80211_CHANCTX_SHARED); 2873 if (err) 2874 goto out_unlock; 2875 2876 ieee80211_queue_delayed_work(&sdata->local->hw, 2877 &sdata->dfs_cac_timer_work, 2878 msecs_to_jiffies(cac_time_ms)); 2879 2880 out_unlock: 2881 mutex_unlock(&local->mtx); 2882 return err; 2883 } 2884 2885 static struct cfg80211_beacon_data * 2886 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2887 { 2888 struct cfg80211_beacon_data *new_beacon; 2889 u8 *pos; 2890 int len; 2891 2892 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2893 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2894 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2895 2896 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2897 if (!new_beacon) 2898 return NULL; 2899 2900 pos = (u8 *)(new_beacon + 1); 2901 if (beacon->head_len) { 2902 new_beacon->head_len = beacon->head_len; 2903 new_beacon->head = pos; 2904 memcpy(pos, beacon->head, beacon->head_len); 2905 pos += beacon->head_len; 2906 } 2907 if (beacon->tail_len) { 2908 new_beacon->tail_len = beacon->tail_len; 2909 new_beacon->tail = pos; 2910 memcpy(pos, beacon->tail, beacon->tail_len); 2911 pos += beacon->tail_len; 2912 } 2913 if (beacon->beacon_ies_len) { 2914 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2915 new_beacon->beacon_ies = pos; 2916 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2917 pos += beacon->beacon_ies_len; 2918 } 2919 if (beacon->proberesp_ies_len) { 2920 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2921 new_beacon->proberesp_ies = pos; 2922 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2923 pos += beacon->proberesp_ies_len; 2924 } 2925 if (beacon->assocresp_ies_len) { 2926 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2927 new_beacon->assocresp_ies = pos; 2928 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2929 pos += beacon->assocresp_ies_len; 2930 } 2931 if (beacon->probe_resp_len) { 2932 new_beacon->probe_resp_len = beacon->probe_resp_len; 2933 new_beacon->probe_resp = pos; 2934 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2935 pos += beacon->probe_resp_len; 2936 } 2937 2938 /* might copy -1, meaning no changes requested */ 2939 new_beacon->ftm_responder = beacon->ftm_responder; 2940 if (beacon->lci) { 2941 new_beacon->lci_len = beacon->lci_len; 2942 new_beacon->lci = pos; 2943 memcpy(pos, beacon->lci, beacon->lci_len); 2944 pos += beacon->lci_len; 2945 } 2946 if (beacon->civicloc) { 2947 new_beacon->civicloc_len = beacon->civicloc_len; 2948 new_beacon->civicloc = pos; 2949 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2950 pos += beacon->civicloc_len; 2951 } 2952 2953 return new_beacon; 2954 } 2955 2956 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2957 { 2958 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2959 2960 ieee80211_queue_work(&sdata->local->hw, 2961 &sdata->csa_finalize_work); 2962 } 2963 EXPORT_SYMBOL(ieee80211_csa_finish); 2964 2965 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2966 u32 *changed) 2967 { 2968 int err; 2969 2970 switch (sdata->vif.type) { 2971 case NL80211_IFTYPE_AP: 2972 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2973 NULL); 2974 kfree(sdata->u.ap.next_beacon); 2975 sdata->u.ap.next_beacon = NULL; 2976 2977 if (err < 0) 2978 return err; 2979 *changed |= err; 2980 break; 2981 case NL80211_IFTYPE_ADHOC: 2982 err = ieee80211_ibss_finish_csa(sdata); 2983 if (err < 0) 2984 return err; 2985 *changed |= err; 2986 break; 2987 #ifdef CONFIG_MAC80211_MESH 2988 case NL80211_IFTYPE_MESH_POINT: 2989 err = ieee80211_mesh_finish_csa(sdata); 2990 if (err < 0) 2991 return err; 2992 *changed |= err; 2993 break; 2994 #endif 2995 default: 2996 WARN_ON(1); 2997 return -EINVAL; 2998 } 2999 3000 return 0; 3001 } 3002 3003 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3004 { 3005 struct ieee80211_local *local = sdata->local; 3006 u32 changed = 0; 3007 int err; 3008 3009 sdata_assert_lock(sdata); 3010 lockdep_assert_held(&local->mtx); 3011 lockdep_assert_held(&local->chanctx_mtx); 3012 3013 /* 3014 * using reservation isn't immediate as it may be deferred until later 3015 * with multi-vif. once reservation is complete it will re-schedule the 3016 * work with no reserved_chanctx so verify chandef to check if it 3017 * completed successfully 3018 */ 3019 3020 if (sdata->reserved_chanctx) { 3021 /* 3022 * with multi-vif csa driver may call ieee80211_csa_finish() 3023 * many times while waiting for other interfaces to use their 3024 * reservations 3025 */ 3026 if (sdata->reserved_ready) 3027 return 0; 3028 3029 return ieee80211_vif_use_reserved_context(sdata); 3030 } 3031 3032 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3033 &sdata->csa_chandef)) 3034 return -EINVAL; 3035 3036 sdata->vif.csa_active = false; 3037 3038 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3039 if (err) 3040 return err; 3041 3042 ieee80211_bss_info_change_notify(sdata, changed); 3043 3044 if (sdata->csa_block_tx) { 3045 ieee80211_wake_vif_queues(local, sdata, 3046 IEEE80211_QUEUE_STOP_REASON_CSA); 3047 sdata->csa_block_tx = false; 3048 } 3049 3050 err = drv_post_channel_switch(sdata); 3051 if (err) 3052 return err; 3053 3054 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3055 3056 return 0; 3057 } 3058 3059 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3060 { 3061 if (__ieee80211_csa_finalize(sdata)) { 3062 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3063 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3064 GFP_KERNEL); 3065 } 3066 } 3067 3068 void ieee80211_csa_finalize_work(struct work_struct *work) 3069 { 3070 struct ieee80211_sub_if_data *sdata = 3071 container_of(work, struct ieee80211_sub_if_data, 3072 csa_finalize_work); 3073 struct ieee80211_local *local = sdata->local; 3074 3075 sdata_lock(sdata); 3076 mutex_lock(&local->mtx); 3077 mutex_lock(&local->chanctx_mtx); 3078 3079 /* AP might have been stopped while waiting for the lock. */ 3080 if (!sdata->vif.csa_active) 3081 goto unlock; 3082 3083 if (!ieee80211_sdata_running(sdata)) 3084 goto unlock; 3085 3086 ieee80211_csa_finalize(sdata); 3087 3088 unlock: 3089 mutex_unlock(&local->chanctx_mtx); 3090 mutex_unlock(&local->mtx); 3091 sdata_unlock(sdata); 3092 } 3093 3094 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3095 struct cfg80211_csa_settings *params, 3096 u32 *changed) 3097 { 3098 struct ieee80211_csa_settings csa = {}; 3099 int err; 3100 3101 switch (sdata->vif.type) { 3102 case NL80211_IFTYPE_AP: 3103 sdata->u.ap.next_beacon = 3104 cfg80211_beacon_dup(¶ms->beacon_after); 3105 if (!sdata->u.ap.next_beacon) 3106 return -ENOMEM; 3107 3108 /* 3109 * With a count of 0, we don't have to wait for any 3110 * TBTT before switching, so complete the CSA 3111 * immediately. In theory, with a count == 1 we 3112 * should delay the switch until just before the next 3113 * TBTT, but that would complicate things so we switch 3114 * immediately too. If we would delay the switch 3115 * until the next TBTT, we would have to set the probe 3116 * response here. 3117 * 3118 * TODO: A channel switch with count <= 1 without 3119 * sending a CSA action frame is kind of useless, 3120 * because the clients won't know we're changing 3121 * channels. The action frame must be implemented 3122 * either here or in the userspace. 3123 */ 3124 if (params->count <= 1) 3125 break; 3126 3127 if ((params->n_counter_offsets_beacon > 3128 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3129 (params->n_counter_offsets_presp > 3130 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3131 return -EINVAL; 3132 3133 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3134 csa.counter_offsets_presp = params->counter_offsets_presp; 3135 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3136 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3137 csa.count = params->count; 3138 3139 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3140 if (err < 0) { 3141 kfree(sdata->u.ap.next_beacon); 3142 return err; 3143 } 3144 *changed |= err; 3145 3146 break; 3147 case NL80211_IFTYPE_ADHOC: 3148 if (!sdata->vif.bss_conf.ibss_joined) 3149 return -EINVAL; 3150 3151 if (params->chandef.width != sdata->u.ibss.chandef.width) 3152 return -EINVAL; 3153 3154 switch (params->chandef.width) { 3155 case NL80211_CHAN_WIDTH_40: 3156 if (cfg80211_get_chandef_type(¶ms->chandef) != 3157 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3158 return -EINVAL; 3159 case NL80211_CHAN_WIDTH_5: 3160 case NL80211_CHAN_WIDTH_10: 3161 case NL80211_CHAN_WIDTH_20_NOHT: 3162 case NL80211_CHAN_WIDTH_20: 3163 break; 3164 default: 3165 return -EINVAL; 3166 } 3167 3168 /* changes into another band are not supported */ 3169 if (sdata->u.ibss.chandef.chan->band != 3170 params->chandef.chan->band) 3171 return -EINVAL; 3172 3173 /* see comments in the NL80211_IFTYPE_AP block */ 3174 if (params->count > 1) { 3175 err = ieee80211_ibss_csa_beacon(sdata, params); 3176 if (err < 0) 3177 return err; 3178 *changed |= err; 3179 } 3180 3181 ieee80211_send_action_csa(sdata, params); 3182 3183 break; 3184 #ifdef CONFIG_MAC80211_MESH 3185 case NL80211_IFTYPE_MESH_POINT: { 3186 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3187 3188 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3189 return -EINVAL; 3190 3191 /* changes into another band are not supported */ 3192 if (sdata->vif.bss_conf.chandef.chan->band != 3193 params->chandef.chan->band) 3194 return -EINVAL; 3195 3196 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3197 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3198 if (!ifmsh->pre_value) 3199 ifmsh->pre_value = 1; 3200 else 3201 ifmsh->pre_value++; 3202 } 3203 3204 /* see comments in the NL80211_IFTYPE_AP block */ 3205 if (params->count > 1) { 3206 err = ieee80211_mesh_csa_beacon(sdata, params); 3207 if (err < 0) { 3208 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3209 return err; 3210 } 3211 *changed |= err; 3212 } 3213 3214 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3215 ieee80211_send_action_csa(sdata, params); 3216 3217 break; 3218 } 3219 #endif 3220 default: 3221 return -EOPNOTSUPP; 3222 } 3223 3224 return 0; 3225 } 3226 3227 static int 3228 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3229 struct cfg80211_csa_settings *params) 3230 { 3231 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3232 struct ieee80211_local *local = sdata->local; 3233 struct ieee80211_channel_switch ch_switch; 3234 struct ieee80211_chanctx_conf *conf; 3235 struct ieee80211_chanctx *chanctx; 3236 u32 changed = 0; 3237 int err; 3238 3239 sdata_assert_lock(sdata); 3240 lockdep_assert_held(&local->mtx); 3241 3242 if (!list_empty(&local->roc_list) || local->scanning) 3243 return -EBUSY; 3244 3245 if (sdata->wdev.cac_started) 3246 return -EBUSY; 3247 3248 if (cfg80211_chandef_identical(¶ms->chandef, 3249 &sdata->vif.bss_conf.chandef)) 3250 return -EINVAL; 3251 3252 /* don't allow another channel switch if one is already active. */ 3253 if (sdata->vif.csa_active) 3254 return -EBUSY; 3255 3256 mutex_lock(&local->chanctx_mtx); 3257 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3258 lockdep_is_held(&local->chanctx_mtx)); 3259 if (!conf) { 3260 err = -EBUSY; 3261 goto out; 3262 } 3263 3264 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3265 3266 ch_switch.timestamp = 0; 3267 ch_switch.device_timestamp = 0; 3268 ch_switch.block_tx = params->block_tx; 3269 ch_switch.chandef = params->chandef; 3270 ch_switch.count = params->count; 3271 3272 err = drv_pre_channel_switch(sdata, &ch_switch); 3273 if (err) 3274 goto out; 3275 3276 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3277 chanctx->mode, 3278 params->radar_required); 3279 if (err) 3280 goto out; 3281 3282 /* if reservation is invalid then this will fail */ 3283 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3284 if (err) { 3285 ieee80211_vif_unreserve_chanctx(sdata); 3286 goto out; 3287 } 3288 3289 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3290 if (err) { 3291 ieee80211_vif_unreserve_chanctx(sdata); 3292 goto out; 3293 } 3294 3295 sdata->csa_chandef = params->chandef; 3296 sdata->csa_block_tx = params->block_tx; 3297 sdata->vif.csa_active = true; 3298 3299 if (sdata->csa_block_tx) 3300 ieee80211_stop_vif_queues(local, sdata, 3301 IEEE80211_QUEUE_STOP_REASON_CSA); 3302 3303 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3304 params->count); 3305 3306 if (changed) { 3307 ieee80211_bss_info_change_notify(sdata, changed); 3308 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3309 } else { 3310 /* if the beacon didn't change, we can finalize immediately */ 3311 ieee80211_csa_finalize(sdata); 3312 } 3313 3314 out: 3315 mutex_unlock(&local->chanctx_mtx); 3316 return err; 3317 } 3318 3319 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3320 struct cfg80211_csa_settings *params) 3321 { 3322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3323 struct ieee80211_local *local = sdata->local; 3324 int err; 3325 3326 mutex_lock(&local->mtx); 3327 err = __ieee80211_channel_switch(wiphy, dev, params); 3328 mutex_unlock(&local->mtx); 3329 3330 return err; 3331 } 3332 3333 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3334 { 3335 lockdep_assert_held(&local->mtx); 3336 3337 local->roc_cookie_counter++; 3338 3339 /* wow, you wrapped 64 bits ... more likely a bug */ 3340 if (WARN_ON(local->roc_cookie_counter == 0)) 3341 local->roc_cookie_counter++; 3342 3343 return local->roc_cookie_counter; 3344 } 3345 3346 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3347 u64 *cookie, gfp_t gfp) 3348 { 3349 unsigned long spin_flags; 3350 struct sk_buff *ack_skb; 3351 int id; 3352 3353 ack_skb = skb_copy(skb, gfp); 3354 if (!ack_skb) 3355 return -ENOMEM; 3356 3357 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3358 id = idr_alloc(&local->ack_status_frames, ack_skb, 3359 1, 0x10000, GFP_ATOMIC); 3360 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3361 3362 if (id < 0) { 3363 kfree_skb(ack_skb); 3364 return -ENOMEM; 3365 } 3366 3367 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3368 3369 *cookie = ieee80211_mgmt_tx_cookie(local); 3370 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3371 3372 return 0; 3373 } 3374 3375 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3376 struct wireless_dev *wdev, 3377 u16 frame_type, bool reg) 3378 { 3379 struct ieee80211_local *local = wiphy_priv(wiphy); 3380 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3381 3382 switch (frame_type) { 3383 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3384 if (reg) { 3385 local->probe_req_reg++; 3386 sdata->vif.probe_req_reg++; 3387 } else { 3388 if (local->probe_req_reg) 3389 local->probe_req_reg--; 3390 3391 if (sdata->vif.probe_req_reg) 3392 sdata->vif.probe_req_reg--; 3393 } 3394 3395 if (!local->open_count) 3396 break; 3397 3398 if (sdata->vif.probe_req_reg == 1) 3399 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3400 FIF_PROBE_REQ); 3401 else if (sdata->vif.probe_req_reg == 0) 3402 drv_config_iface_filter(local, sdata, 0, 3403 FIF_PROBE_REQ); 3404 3405 ieee80211_configure_filter(local); 3406 break; 3407 default: 3408 break; 3409 } 3410 } 3411 3412 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3413 { 3414 struct ieee80211_local *local = wiphy_priv(wiphy); 3415 3416 if (local->started) 3417 return -EOPNOTSUPP; 3418 3419 return drv_set_antenna(local, tx_ant, rx_ant); 3420 } 3421 3422 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3423 { 3424 struct ieee80211_local *local = wiphy_priv(wiphy); 3425 3426 return drv_get_antenna(local, tx_ant, rx_ant); 3427 } 3428 3429 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3430 struct net_device *dev, 3431 struct cfg80211_gtk_rekey_data *data) 3432 { 3433 struct ieee80211_local *local = wiphy_priv(wiphy); 3434 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3435 3436 if (!local->ops->set_rekey_data) 3437 return -EOPNOTSUPP; 3438 3439 drv_set_rekey_data(local, sdata, data); 3440 3441 return 0; 3442 } 3443 3444 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3445 const u8 *peer, u64 *cookie) 3446 { 3447 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3448 struct ieee80211_local *local = sdata->local; 3449 struct ieee80211_qos_hdr *nullfunc; 3450 struct sk_buff *skb; 3451 int size = sizeof(*nullfunc); 3452 __le16 fc; 3453 bool qos; 3454 struct ieee80211_tx_info *info; 3455 struct sta_info *sta; 3456 struct ieee80211_chanctx_conf *chanctx_conf; 3457 enum nl80211_band band; 3458 int ret; 3459 3460 /* the lock is needed to assign the cookie later */ 3461 mutex_lock(&local->mtx); 3462 3463 rcu_read_lock(); 3464 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3465 if (WARN_ON(!chanctx_conf)) { 3466 ret = -EINVAL; 3467 goto unlock; 3468 } 3469 band = chanctx_conf->def.chan->band; 3470 sta = sta_info_get_bss(sdata, peer); 3471 if (sta) { 3472 qos = sta->sta.wme; 3473 } else { 3474 ret = -ENOLINK; 3475 goto unlock; 3476 } 3477 3478 if (qos) { 3479 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3480 IEEE80211_STYPE_QOS_NULLFUNC | 3481 IEEE80211_FCTL_FROMDS); 3482 } else { 3483 size -= 2; 3484 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3485 IEEE80211_STYPE_NULLFUNC | 3486 IEEE80211_FCTL_FROMDS); 3487 } 3488 3489 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3490 if (!skb) { 3491 ret = -ENOMEM; 3492 goto unlock; 3493 } 3494 3495 skb->dev = dev; 3496 3497 skb_reserve(skb, local->hw.extra_tx_headroom); 3498 3499 nullfunc = skb_put(skb, size); 3500 nullfunc->frame_control = fc; 3501 nullfunc->duration_id = 0; 3502 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3503 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3504 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3505 nullfunc->seq_ctrl = 0; 3506 3507 info = IEEE80211_SKB_CB(skb); 3508 3509 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3510 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3511 info->band = band; 3512 3513 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3514 skb->priority = 7; 3515 if (qos) 3516 nullfunc->qos_ctrl = cpu_to_le16(7); 3517 3518 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3519 if (ret) { 3520 kfree_skb(skb); 3521 goto unlock; 3522 } 3523 3524 local_bh_disable(); 3525 ieee80211_xmit(sdata, sta, skb, 0); 3526 local_bh_enable(); 3527 3528 ret = 0; 3529 unlock: 3530 rcu_read_unlock(); 3531 mutex_unlock(&local->mtx); 3532 3533 return ret; 3534 } 3535 3536 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3537 struct wireless_dev *wdev, 3538 struct cfg80211_chan_def *chandef) 3539 { 3540 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3541 struct ieee80211_local *local = wiphy_priv(wiphy); 3542 struct ieee80211_chanctx_conf *chanctx_conf; 3543 int ret = -ENODATA; 3544 3545 rcu_read_lock(); 3546 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3547 if (chanctx_conf) { 3548 *chandef = sdata->vif.bss_conf.chandef; 3549 ret = 0; 3550 } else if (local->open_count > 0 && 3551 local->open_count == local->monitors && 3552 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3553 if (local->use_chanctx) 3554 *chandef = local->monitor_chandef; 3555 else 3556 *chandef = local->_oper_chandef; 3557 ret = 0; 3558 } 3559 rcu_read_unlock(); 3560 3561 return ret; 3562 } 3563 3564 #ifdef CONFIG_PM 3565 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3566 { 3567 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3568 } 3569 #endif 3570 3571 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3572 struct net_device *dev, 3573 struct cfg80211_qos_map *qos_map) 3574 { 3575 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3576 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3577 3578 if (qos_map) { 3579 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3580 if (!new_qos_map) 3581 return -ENOMEM; 3582 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3583 } else { 3584 /* A NULL qos_map was passed to disable QoS mapping */ 3585 new_qos_map = NULL; 3586 } 3587 3588 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3589 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3590 if (old_qos_map) 3591 kfree_rcu(old_qos_map, rcu_head); 3592 3593 return 0; 3594 } 3595 3596 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3597 struct net_device *dev, 3598 struct cfg80211_chan_def *chandef) 3599 { 3600 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3601 int ret; 3602 u32 changed = 0; 3603 3604 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3605 if (ret == 0) 3606 ieee80211_bss_info_change_notify(sdata, changed); 3607 3608 return ret; 3609 } 3610 3611 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3612 u8 tsid, const u8 *peer, u8 up, 3613 u16 admitted_time) 3614 { 3615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3616 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3617 int ac = ieee802_1d_to_ac[up]; 3618 3619 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3620 return -EOPNOTSUPP; 3621 3622 if (!(sdata->wmm_acm & BIT(up))) 3623 return -EINVAL; 3624 3625 if (ifmgd->tx_tspec[ac].admitted_time) 3626 return -EBUSY; 3627 3628 if (admitted_time) { 3629 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3630 ifmgd->tx_tspec[ac].tsid = tsid; 3631 ifmgd->tx_tspec[ac].up = up; 3632 } 3633 3634 return 0; 3635 } 3636 3637 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3638 u8 tsid, const u8 *peer) 3639 { 3640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3641 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3642 struct ieee80211_local *local = wiphy_priv(wiphy); 3643 int ac; 3644 3645 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3646 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3647 3648 /* skip unused entries */ 3649 if (!tx_tspec->admitted_time) 3650 continue; 3651 3652 if (tx_tspec->tsid != tsid) 3653 continue; 3654 3655 /* due to this new packets will be reassigned to non-ACM ACs */ 3656 tx_tspec->up = -1; 3657 3658 /* Make sure that all packets have been sent to avoid to 3659 * restore the QoS params on packets that are still on the 3660 * queues. 3661 */ 3662 synchronize_net(); 3663 ieee80211_flush_queues(local, sdata, false); 3664 3665 /* restore the normal QoS parameters 3666 * (unconditionally to avoid races) 3667 */ 3668 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3669 tx_tspec->downgraded = false; 3670 ieee80211_sta_handle_tspec_ac_params(sdata); 3671 3672 /* finally clear all the data */ 3673 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3674 3675 return 0; 3676 } 3677 3678 return -ENOENT; 3679 } 3680 3681 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3682 u8 inst_id, 3683 enum nl80211_nan_func_term_reason reason, 3684 gfp_t gfp) 3685 { 3686 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3687 struct cfg80211_nan_func *func; 3688 u64 cookie; 3689 3690 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3691 return; 3692 3693 spin_lock_bh(&sdata->u.nan.func_lock); 3694 3695 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3696 if (WARN_ON(!func)) { 3697 spin_unlock_bh(&sdata->u.nan.func_lock); 3698 return; 3699 } 3700 3701 cookie = func->cookie; 3702 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3703 3704 spin_unlock_bh(&sdata->u.nan.func_lock); 3705 3706 cfg80211_free_nan_func(func); 3707 3708 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3709 reason, cookie, gfp); 3710 } 3711 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3712 3713 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3714 struct cfg80211_nan_match_params *match, 3715 gfp_t gfp) 3716 { 3717 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3718 struct cfg80211_nan_func *func; 3719 3720 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3721 return; 3722 3723 spin_lock_bh(&sdata->u.nan.func_lock); 3724 3725 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3726 if (WARN_ON(!func)) { 3727 spin_unlock_bh(&sdata->u.nan.func_lock); 3728 return; 3729 } 3730 match->cookie = func->cookie; 3731 3732 spin_unlock_bh(&sdata->u.nan.func_lock); 3733 3734 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3735 } 3736 EXPORT_SYMBOL(ieee80211_nan_func_match); 3737 3738 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3739 struct net_device *dev, 3740 const bool enabled) 3741 { 3742 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3743 3744 sdata->u.ap.multicast_to_unicast = enabled; 3745 3746 return 0; 3747 } 3748 3749 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3750 struct txq_info *txqi) 3751 { 3752 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3753 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3754 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3755 } 3756 3757 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3758 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3759 txqstats->backlog_packets = txqi->tin.backlog_packets; 3760 } 3761 3762 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3763 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3764 txqstats->flows = txqi->tin.flows; 3765 } 3766 3767 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3768 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3769 txqstats->drops = txqi->cstats.drop_count; 3770 } 3771 3772 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3773 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3774 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3775 } 3776 3777 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3778 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3779 txqstats->overlimit = txqi->tin.overlimit; 3780 } 3781 3782 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3783 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3784 txqstats->collisions = txqi->tin.collisions; 3785 } 3786 3787 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3788 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3789 txqstats->tx_bytes = txqi->tin.tx_bytes; 3790 } 3791 3792 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3793 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3794 txqstats->tx_packets = txqi->tin.tx_packets; 3795 } 3796 } 3797 3798 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3799 struct wireless_dev *wdev, 3800 struct cfg80211_txq_stats *txqstats) 3801 { 3802 struct ieee80211_local *local = wiphy_priv(wiphy); 3803 struct ieee80211_sub_if_data *sdata; 3804 int ret = 0; 3805 3806 if (!local->ops->wake_tx_queue) 3807 return 1; 3808 3809 spin_lock_bh(&local->fq.lock); 3810 rcu_read_lock(); 3811 3812 if (wdev) { 3813 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3814 if (!sdata->vif.txq) { 3815 ret = 1; 3816 goto out; 3817 } 3818 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3819 } else { 3820 /* phy stats */ 3821 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3822 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3823 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3824 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3825 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3826 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3827 txqstats->backlog_packets = local->fq.backlog; 3828 txqstats->backlog_bytes = local->fq.memory_usage; 3829 txqstats->overlimit = local->fq.overlimit; 3830 txqstats->overmemory = local->fq.overmemory; 3831 txqstats->collisions = local->fq.collisions; 3832 txqstats->max_flows = local->fq.flows_cnt; 3833 } 3834 3835 out: 3836 rcu_read_unlock(); 3837 spin_unlock_bh(&local->fq.lock); 3838 3839 return ret; 3840 } 3841 3842 static int 3843 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3844 struct net_device *dev, 3845 struct cfg80211_ftm_responder_stats *ftm_stats) 3846 { 3847 struct ieee80211_local *local = wiphy_priv(wiphy); 3848 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3849 3850 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3851 } 3852 3853 const struct cfg80211_ops mac80211_config_ops = { 3854 .add_virtual_intf = ieee80211_add_iface, 3855 .del_virtual_intf = ieee80211_del_iface, 3856 .change_virtual_intf = ieee80211_change_iface, 3857 .start_p2p_device = ieee80211_start_p2p_device, 3858 .stop_p2p_device = ieee80211_stop_p2p_device, 3859 .add_key = ieee80211_add_key, 3860 .del_key = ieee80211_del_key, 3861 .get_key = ieee80211_get_key, 3862 .set_default_key = ieee80211_config_default_key, 3863 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3864 .start_ap = ieee80211_start_ap, 3865 .change_beacon = ieee80211_change_beacon, 3866 .stop_ap = ieee80211_stop_ap, 3867 .add_station = ieee80211_add_station, 3868 .del_station = ieee80211_del_station, 3869 .change_station = ieee80211_change_station, 3870 .get_station = ieee80211_get_station, 3871 .dump_station = ieee80211_dump_station, 3872 .dump_survey = ieee80211_dump_survey, 3873 #ifdef CONFIG_MAC80211_MESH 3874 .add_mpath = ieee80211_add_mpath, 3875 .del_mpath = ieee80211_del_mpath, 3876 .change_mpath = ieee80211_change_mpath, 3877 .get_mpath = ieee80211_get_mpath, 3878 .dump_mpath = ieee80211_dump_mpath, 3879 .get_mpp = ieee80211_get_mpp, 3880 .dump_mpp = ieee80211_dump_mpp, 3881 .update_mesh_config = ieee80211_update_mesh_config, 3882 .get_mesh_config = ieee80211_get_mesh_config, 3883 .join_mesh = ieee80211_join_mesh, 3884 .leave_mesh = ieee80211_leave_mesh, 3885 #endif 3886 .join_ocb = ieee80211_join_ocb, 3887 .leave_ocb = ieee80211_leave_ocb, 3888 .change_bss = ieee80211_change_bss, 3889 .set_txq_params = ieee80211_set_txq_params, 3890 .set_monitor_channel = ieee80211_set_monitor_channel, 3891 .suspend = ieee80211_suspend, 3892 .resume = ieee80211_resume, 3893 .scan = ieee80211_scan, 3894 .abort_scan = ieee80211_abort_scan, 3895 .sched_scan_start = ieee80211_sched_scan_start, 3896 .sched_scan_stop = ieee80211_sched_scan_stop, 3897 .auth = ieee80211_auth, 3898 .assoc = ieee80211_assoc, 3899 .deauth = ieee80211_deauth, 3900 .disassoc = ieee80211_disassoc, 3901 .join_ibss = ieee80211_join_ibss, 3902 .leave_ibss = ieee80211_leave_ibss, 3903 .set_mcast_rate = ieee80211_set_mcast_rate, 3904 .set_wiphy_params = ieee80211_set_wiphy_params, 3905 .set_tx_power = ieee80211_set_tx_power, 3906 .get_tx_power = ieee80211_get_tx_power, 3907 .set_wds_peer = ieee80211_set_wds_peer, 3908 .rfkill_poll = ieee80211_rfkill_poll, 3909 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3910 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3911 .set_power_mgmt = ieee80211_set_power_mgmt, 3912 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3913 .remain_on_channel = ieee80211_remain_on_channel, 3914 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3915 .mgmt_tx = ieee80211_mgmt_tx, 3916 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3917 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3918 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3919 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3920 .set_antenna = ieee80211_set_antenna, 3921 .get_antenna = ieee80211_get_antenna, 3922 .set_rekey_data = ieee80211_set_rekey_data, 3923 .tdls_oper = ieee80211_tdls_oper, 3924 .tdls_mgmt = ieee80211_tdls_mgmt, 3925 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3926 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3927 .probe_client = ieee80211_probe_client, 3928 .set_noack_map = ieee80211_set_noack_map, 3929 #ifdef CONFIG_PM 3930 .set_wakeup = ieee80211_set_wakeup, 3931 #endif 3932 .get_channel = ieee80211_cfg_get_channel, 3933 .start_radar_detection = ieee80211_start_radar_detection, 3934 .channel_switch = ieee80211_channel_switch, 3935 .set_qos_map = ieee80211_set_qos_map, 3936 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3937 .add_tx_ts = ieee80211_add_tx_ts, 3938 .del_tx_ts = ieee80211_del_tx_ts, 3939 .start_nan = ieee80211_start_nan, 3940 .stop_nan = ieee80211_stop_nan, 3941 .nan_change_conf = ieee80211_nan_change_conf, 3942 .add_nan_func = ieee80211_add_nan_func, 3943 .del_nan_func = ieee80211_del_nan_func, 3944 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3945 .tx_control_port = ieee80211_tx_control_port, 3946 .get_txq_stats = ieee80211_get_txq_stats, 3947 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3948 }; 3949