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