1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2015 Intel Mobile Communications GmbH 6 * Copyright (C) 2015-2017 Intel Deutschland GmbH 7 * Copyright (C) 2018 Intel Corporation 8 * 9 * This file is GPLv2 as found in COPYING. 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && 162 params && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && 166 params && params->use_4addr >= 0) { 167 sdata->u.mgd.use_4addr = params->use_4addr; 168 } 169 170 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 171 ret = ieee80211_set_mon_options(sdata, params); 172 if (ret) 173 return ret; 174 } 175 176 return 0; 177 } 178 179 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 180 struct wireless_dev *wdev) 181 { 182 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 183 int ret; 184 185 mutex_lock(&sdata->local->chanctx_mtx); 186 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 187 mutex_unlock(&sdata->local->chanctx_mtx); 188 if (ret < 0) 189 return ret; 190 191 return ieee80211_do_open(wdev, true); 192 } 193 194 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 195 struct wireless_dev *wdev) 196 { 197 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 198 } 199 200 static int ieee80211_start_nan(struct wiphy *wiphy, 201 struct wireless_dev *wdev, 202 struct cfg80211_nan_conf *conf) 203 { 204 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 205 int ret; 206 207 mutex_lock(&sdata->local->chanctx_mtx); 208 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 209 mutex_unlock(&sdata->local->chanctx_mtx); 210 if (ret < 0) 211 return ret; 212 213 ret = ieee80211_do_open(wdev, true); 214 if (ret) 215 return ret; 216 217 ret = drv_start_nan(sdata->local, sdata, conf); 218 if (ret) 219 ieee80211_sdata_stop(sdata); 220 221 sdata->u.nan.conf = *conf; 222 223 return ret; 224 } 225 226 static void ieee80211_stop_nan(struct wiphy *wiphy, 227 struct wireless_dev *wdev) 228 { 229 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 230 231 drv_stop_nan(sdata->local, sdata); 232 ieee80211_sdata_stop(sdata); 233 } 234 235 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 236 struct wireless_dev *wdev, 237 struct cfg80211_nan_conf *conf, 238 u32 changes) 239 { 240 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 241 struct cfg80211_nan_conf new_conf; 242 int ret = 0; 243 244 if (sdata->vif.type != NL80211_IFTYPE_NAN) 245 return -EOPNOTSUPP; 246 247 if (!ieee80211_sdata_running(sdata)) 248 return -ENETDOWN; 249 250 new_conf = sdata->u.nan.conf; 251 252 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 253 new_conf.master_pref = conf->master_pref; 254 255 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 256 new_conf.bands = conf->bands; 257 258 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 259 if (!ret) 260 sdata->u.nan.conf = new_conf; 261 262 return ret; 263 } 264 265 static int ieee80211_add_nan_func(struct wiphy *wiphy, 266 struct wireless_dev *wdev, 267 struct cfg80211_nan_func *nan_func) 268 { 269 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 270 int ret; 271 272 if (sdata->vif.type != NL80211_IFTYPE_NAN) 273 return -EOPNOTSUPP; 274 275 if (!ieee80211_sdata_running(sdata)) 276 return -ENETDOWN; 277 278 spin_lock_bh(&sdata->u.nan.func_lock); 279 280 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 281 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 282 GFP_ATOMIC); 283 spin_unlock_bh(&sdata->u.nan.func_lock); 284 285 if (ret < 0) 286 return ret; 287 288 nan_func->instance_id = ret; 289 290 WARN_ON(nan_func->instance_id == 0); 291 292 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 293 if (ret) { 294 spin_lock_bh(&sdata->u.nan.func_lock); 295 idr_remove(&sdata->u.nan.function_inst_ids, 296 nan_func->instance_id); 297 spin_unlock_bh(&sdata->u.nan.func_lock); 298 } 299 300 return ret; 301 } 302 303 static struct cfg80211_nan_func * 304 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 305 u64 cookie) 306 { 307 struct cfg80211_nan_func *func; 308 int id; 309 310 lockdep_assert_held(&sdata->u.nan.func_lock); 311 312 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 313 if (func->cookie == cookie) 314 return func; 315 } 316 317 return NULL; 318 } 319 320 static void ieee80211_del_nan_func(struct wiphy *wiphy, 321 struct wireless_dev *wdev, u64 cookie) 322 { 323 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 324 struct cfg80211_nan_func *func; 325 u8 instance_id = 0; 326 327 if (sdata->vif.type != NL80211_IFTYPE_NAN || 328 !ieee80211_sdata_running(sdata)) 329 return; 330 331 spin_lock_bh(&sdata->u.nan.func_lock); 332 333 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 334 if (func) 335 instance_id = func->instance_id; 336 337 spin_unlock_bh(&sdata->u.nan.func_lock); 338 339 if (instance_id) 340 drv_del_nan_func(sdata->local, sdata, instance_id); 341 } 342 343 static int ieee80211_set_noack_map(struct wiphy *wiphy, 344 struct net_device *dev, 345 u16 noack_map) 346 { 347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 348 349 sdata->noack_map = noack_map; 350 351 ieee80211_check_fast_xmit_iface(sdata); 352 353 return 0; 354 } 355 356 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 357 u8 key_idx, bool pairwise, const u8 *mac_addr, 358 struct key_params *params) 359 { 360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 361 struct ieee80211_local *local = sdata->local; 362 struct sta_info *sta = NULL; 363 const struct ieee80211_cipher_scheme *cs = NULL; 364 struct ieee80211_key *key; 365 int err; 366 367 if (!ieee80211_sdata_running(sdata)) 368 return -ENETDOWN; 369 370 /* reject WEP and TKIP keys if WEP failed to initialize */ 371 switch (params->cipher) { 372 case WLAN_CIPHER_SUITE_WEP40: 373 case WLAN_CIPHER_SUITE_TKIP: 374 case WLAN_CIPHER_SUITE_WEP104: 375 if (IS_ERR(local->wep_tx_tfm)) 376 return -EINVAL; 377 break; 378 case WLAN_CIPHER_SUITE_CCMP: 379 case WLAN_CIPHER_SUITE_CCMP_256: 380 case WLAN_CIPHER_SUITE_AES_CMAC: 381 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 382 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 383 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 384 case WLAN_CIPHER_SUITE_GCMP: 385 case WLAN_CIPHER_SUITE_GCMP_256: 386 break; 387 default: 388 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 389 break; 390 } 391 392 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 393 params->key, params->seq_len, params->seq, 394 cs); 395 if (IS_ERR(key)) 396 return PTR_ERR(key); 397 398 if (pairwise) 399 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 400 401 mutex_lock(&local->sta_mtx); 402 403 if (mac_addr) { 404 sta = sta_info_get_bss(sdata, mac_addr); 405 /* 406 * The ASSOC test makes sure the driver is ready to 407 * receive the key. When wpa_supplicant has roamed 408 * using FT, it attempts to set the key before 409 * association has completed, this rejects that attempt 410 * so it will set the key again after association. 411 * 412 * TODO: accept the key if we have a station entry and 413 * add it to the device after the station. 414 */ 415 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 416 ieee80211_key_free_unused(key); 417 err = -ENOENT; 418 goto out_unlock; 419 } 420 } 421 422 switch (sdata->vif.type) { 423 case NL80211_IFTYPE_STATION: 424 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 425 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 426 break; 427 case NL80211_IFTYPE_AP: 428 case NL80211_IFTYPE_AP_VLAN: 429 /* Keys without a station are used for TX only */ 430 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 431 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 432 break; 433 case NL80211_IFTYPE_ADHOC: 434 /* no MFP (yet) */ 435 break; 436 case NL80211_IFTYPE_MESH_POINT: 437 #ifdef CONFIG_MAC80211_MESH 438 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 439 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 440 break; 441 #endif 442 case NL80211_IFTYPE_WDS: 443 case NL80211_IFTYPE_MONITOR: 444 case NL80211_IFTYPE_P2P_DEVICE: 445 case NL80211_IFTYPE_NAN: 446 case NL80211_IFTYPE_UNSPECIFIED: 447 case NUM_NL80211_IFTYPES: 448 case NL80211_IFTYPE_P2P_CLIENT: 449 case NL80211_IFTYPE_P2P_GO: 450 case NL80211_IFTYPE_OCB: 451 /* shouldn't happen */ 452 WARN_ON_ONCE(1); 453 break; 454 } 455 456 if (sta) 457 sta->cipher_scheme = cs; 458 459 err = ieee80211_key_link(key, sdata, sta); 460 461 out_unlock: 462 mutex_unlock(&local->sta_mtx); 463 464 return err; 465 } 466 467 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 468 u8 key_idx, bool pairwise, const u8 *mac_addr) 469 { 470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 471 struct ieee80211_local *local = sdata->local; 472 struct sta_info *sta; 473 struct ieee80211_key *key = NULL; 474 int ret; 475 476 mutex_lock(&local->sta_mtx); 477 mutex_lock(&local->key_mtx); 478 479 if (mac_addr) { 480 ret = -ENOENT; 481 482 sta = sta_info_get_bss(sdata, mac_addr); 483 if (!sta) 484 goto out_unlock; 485 486 if (pairwise) 487 key = key_mtx_dereference(local, sta->ptk[key_idx]); 488 else 489 key = key_mtx_dereference(local, sta->gtk[key_idx]); 490 } else 491 key = key_mtx_dereference(local, sdata->keys[key_idx]); 492 493 if (!key) { 494 ret = -ENOENT; 495 goto out_unlock; 496 } 497 498 ieee80211_key_free(key, true); 499 500 ret = 0; 501 out_unlock: 502 mutex_unlock(&local->key_mtx); 503 mutex_unlock(&local->sta_mtx); 504 505 return ret; 506 } 507 508 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 509 u8 key_idx, bool pairwise, const u8 *mac_addr, 510 void *cookie, 511 void (*callback)(void *cookie, 512 struct key_params *params)) 513 { 514 struct ieee80211_sub_if_data *sdata; 515 struct sta_info *sta = NULL; 516 u8 seq[6] = {0}; 517 struct key_params params; 518 struct ieee80211_key *key = NULL; 519 u64 pn64; 520 u32 iv32; 521 u16 iv16; 522 int err = -ENOENT; 523 struct ieee80211_key_seq kseq = {}; 524 525 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 526 527 rcu_read_lock(); 528 529 if (mac_addr) { 530 sta = sta_info_get_bss(sdata, mac_addr); 531 if (!sta) 532 goto out; 533 534 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 535 key = rcu_dereference(sta->ptk[key_idx]); 536 else if (!pairwise && 537 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 538 key = rcu_dereference(sta->gtk[key_idx]); 539 } else 540 key = rcu_dereference(sdata->keys[key_idx]); 541 542 if (!key) 543 goto out; 544 545 memset(¶ms, 0, sizeof(params)); 546 547 params.cipher = key->conf.cipher; 548 549 switch (key->conf.cipher) { 550 case WLAN_CIPHER_SUITE_TKIP: 551 pn64 = atomic64_read(&key->conf.tx_pn); 552 iv32 = TKIP_PN_TO_IV32(pn64); 553 iv16 = TKIP_PN_TO_IV16(pn64); 554 555 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 556 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 557 drv_get_key_seq(sdata->local, key, &kseq); 558 iv32 = kseq.tkip.iv32; 559 iv16 = kseq.tkip.iv16; 560 } 561 562 seq[0] = iv16 & 0xff; 563 seq[1] = (iv16 >> 8) & 0xff; 564 seq[2] = iv32 & 0xff; 565 seq[3] = (iv32 >> 8) & 0xff; 566 seq[4] = (iv32 >> 16) & 0xff; 567 seq[5] = (iv32 >> 24) & 0xff; 568 params.seq = seq; 569 params.seq_len = 6; 570 break; 571 case WLAN_CIPHER_SUITE_CCMP: 572 case WLAN_CIPHER_SUITE_CCMP_256: 573 case WLAN_CIPHER_SUITE_AES_CMAC: 574 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 575 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 576 offsetof(typeof(kseq), aes_cmac)); 577 /* fall through */ 578 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 579 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 580 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 581 offsetof(typeof(kseq), aes_gmac)); 582 /* fall through */ 583 case WLAN_CIPHER_SUITE_GCMP: 584 case WLAN_CIPHER_SUITE_GCMP_256: 585 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 586 offsetof(typeof(kseq), gcmp)); 587 588 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 589 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 590 drv_get_key_seq(sdata->local, key, &kseq); 591 memcpy(seq, kseq.ccmp.pn, 6); 592 } else { 593 pn64 = atomic64_read(&key->conf.tx_pn); 594 seq[0] = pn64; 595 seq[1] = pn64 >> 8; 596 seq[2] = pn64 >> 16; 597 seq[3] = pn64 >> 24; 598 seq[4] = pn64 >> 32; 599 seq[5] = pn64 >> 40; 600 } 601 params.seq = seq; 602 params.seq_len = 6; 603 break; 604 default: 605 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 606 break; 607 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 608 break; 609 drv_get_key_seq(sdata->local, key, &kseq); 610 params.seq = kseq.hw.seq; 611 params.seq_len = kseq.hw.seq_len; 612 break; 613 } 614 615 params.key = key->conf.key; 616 params.key_len = key->conf.keylen; 617 618 callback(cookie, ¶ms); 619 err = 0; 620 621 out: 622 rcu_read_unlock(); 623 return err; 624 } 625 626 static int ieee80211_config_default_key(struct wiphy *wiphy, 627 struct net_device *dev, 628 u8 key_idx, bool uni, 629 bool multi) 630 { 631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 632 633 ieee80211_set_default_key(sdata, key_idx, uni, multi); 634 635 return 0; 636 } 637 638 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 639 struct net_device *dev, 640 u8 key_idx) 641 { 642 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 643 644 ieee80211_set_default_mgmt_key(sdata, key_idx); 645 646 return 0; 647 } 648 649 void sta_set_rate_info_tx(struct sta_info *sta, 650 const struct ieee80211_tx_rate *rate, 651 struct rate_info *rinfo) 652 { 653 rinfo->flags = 0; 654 if (rate->flags & IEEE80211_TX_RC_MCS) { 655 rinfo->flags |= RATE_INFO_FLAGS_MCS; 656 rinfo->mcs = rate->idx; 657 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 658 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 659 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 660 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 661 } else { 662 struct ieee80211_supported_band *sband; 663 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 664 u16 brate; 665 666 sband = ieee80211_get_sband(sta->sdata); 667 if (sband) { 668 brate = sband->bitrates[rate->idx].bitrate; 669 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 670 } 671 } 672 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 673 rinfo->bw = RATE_INFO_BW_40; 674 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 675 rinfo->bw = RATE_INFO_BW_80; 676 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 677 rinfo->bw = RATE_INFO_BW_160; 678 else 679 rinfo->bw = RATE_INFO_BW_20; 680 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 681 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 682 } 683 684 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 685 int idx, u8 *mac, struct station_info *sinfo) 686 { 687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 688 struct ieee80211_local *local = sdata->local; 689 struct sta_info *sta; 690 int ret = -ENOENT; 691 692 mutex_lock(&local->sta_mtx); 693 694 sta = sta_info_get_by_idx(sdata, idx); 695 if (sta) { 696 ret = 0; 697 memcpy(mac, sta->sta.addr, ETH_ALEN); 698 sta_set_sinfo(sta, sinfo, true); 699 } 700 701 mutex_unlock(&local->sta_mtx); 702 703 return ret; 704 } 705 706 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 707 int idx, struct survey_info *survey) 708 { 709 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 710 711 return drv_get_survey(local, idx, survey); 712 } 713 714 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 715 const u8 *mac, struct station_info *sinfo) 716 { 717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 718 struct ieee80211_local *local = sdata->local; 719 struct sta_info *sta; 720 int ret = -ENOENT; 721 722 mutex_lock(&local->sta_mtx); 723 724 sta = sta_info_get_bss(sdata, mac); 725 if (sta) { 726 ret = 0; 727 sta_set_sinfo(sta, sinfo, true); 728 } 729 730 mutex_unlock(&local->sta_mtx); 731 732 return ret; 733 } 734 735 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 736 struct cfg80211_chan_def *chandef) 737 { 738 struct ieee80211_local *local = wiphy_priv(wiphy); 739 struct ieee80211_sub_if_data *sdata; 740 int ret = 0; 741 742 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 743 return 0; 744 745 mutex_lock(&local->mtx); 746 if (local->use_chanctx) { 747 sdata = rtnl_dereference(local->monitor_sdata); 748 if (sdata) { 749 ieee80211_vif_release_channel(sdata); 750 ret = ieee80211_vif_use_channel(sdata, chandef, 751 IEEE80211_CHANCTX_EXCLUSIVE); 752 } 753 } else if (local->open_count == local->monitors) { 754 local->_oper_chandef = *chandef; 755 ieee80211_hw_config(local, 0); 756 } 757 758 if (ret == 0) 759 local->monitor_chandef = *chandef; 760 mutex_unlock(&local->mtx); 761 762 return ret; 763 } 764 765 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 766 const u8 *resp, size_t resp_len, 767 const struct ieee80211_csa_settings *csa) 768 { 769 struct probe_resp *new, *old; 770 771 if (!resp || !resp_len) 772 return 1; 773 774 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 775 776 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 777 if (!new) 778 return -ENOMEM; 779 780 new->len = resp_len; 781 memcpy(new->data, resp, resp_len); 782 783 if (csa) 784 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 785 csa->n_counter_offsets_presp * 786 sizeof(new->csa_counter_offsets[0])); 787 788 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 789 if (old) 790 kfree_rcu(old, rcu_head); 791 792 return 0; 793 } 794 795 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 796 struct cfg80211_beacon_data *params, 797 const struct ieee80211_csa_settings *csa) 798 { 799 struct beacon_data *new, *old; 800 int new_head_len, new_tail_len; 801 int size, err; 802 u32 changed = BSS_CHANGED_BEACON; 803 804 old = sdata_dereference(sdata->u.ap.beacon, sdata); 805 806 807 /* Need to have a beacon head if we don't have one yet */ 808 if (!params->head && !old) 809 return -EINVAL; 810 811 /* new or old head? */ 812 if (params->head) 813 new_head_len = params->head_len; 814 else 815 new_head_len = old->head_len; 816 817 /* new or old tail? */ 818 if (params->tail || !old) 819 /* params->tail_len will be zero for !params->tail */ 820 new_tail_len = params->tail_len; 821 else 822 new_tail_len = old->tail_len; 823 824 size = sizeof(*new) + new_head_len + new_tail_len; 825 826 new = kzalloc(size, GFP_KERNEL); 827 if (!new) 828 return -ENOMEM; 829 830 /* start filling the new info now */ 831 832 /* 833 * pointers go into the block we allocated, 834 * memory is | beacon_data | head | tail | 835 */ 836 new->head = ((u8 *) new) + sizeof(*new); 837 new->tail = new->head + new_head_len; 838 new->head_len = new_head_len; 839 new->tail_len = new_tail_len; 840 841 if (csa) { 842 new->csa_current_counter = csa->count; 843 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 844 csa->n_counter_offsets_beacon * 845 sizeof(new->csa_counter_offsets[0])); 846 } 847 848 /* copy in head */ 849 if (params->head) 850 memcpy(new->head, params->head, new_head_len); 851 else 852 memcpy(new->head, old->head, new_head_len); 853 854 /* copy in optional tail */ 855 if (params->tail) 856 memcpy(new->tail, params->tail, new_tail_len); 857 else 858 if (old) 859 memcpy(new->tail, old->tail, new_tail_len); 860 861 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 862 params->probe_resp_len, csa); 863 if (err < 0) 864 return err; 865 if (err == 0) 866 changed |= BSS_CHANGED_AP_PROBE_RESP; 867 868 rcu_assign_pointer(sdata->u.ap.beacon, new); 869 870 if (old) 871 kfree_rcu(old, rcu_head); 872 873 return changed; 874 } 875 876 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 877 struct cfg80211_ap_settings *params) 878 { 879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 880 struct ieee80211_local *local = sdata->local; 881 struct beacon_data *old; 882 struct ieee80211_sub_if_data *vlan; 883 u32 changed = BSS_CHANGED_BEACON_INT | 884 BSS_CHANGED_BEACON_ENABLED | 885 BSS_CHANGED_BEACON | 886 BSS_CHANGED_SSID | 887 BSS_CHANGED_P2P_PS | 888 BSS_CHANGED_TXPOWER; 889 int err; 890 891 old = sdata_dereference(sdata->u.ap.beacon, sdata); 892 if (old) 893 return -EALREADY; 894 895 switch (params->smps_mode) { 896 case NL80211_SMPS_OFF: 897 sdata->smps_mode = IEEE80211_SMPS_OFF; 898 break; 899 case NL80211_SMPS_STATIC: 900 sdata->smps_mode = IEEE80211_SMPS_STATIC; 901 break; 902 case NL80211_SMPS_DYNAMIC: 903 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 904 break; 905 default: 906 return -EINVAL; 907 } 908 sdata->u.ap.req_smps = sdata->smps_mode; 909 910 sdata->needed_rx_chains = sdata->local->rx_chains; 911 912 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 913 914 mutex_lock(&local->mtx); 915 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 916 IEEE80211_CHANCTX_SHARED); 917 if (!err) 918 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 919 mutex_unlock(&local->mtx); 920 if (err) 921 return err; 922 923 /* 924 * Apply control port protocol, this allows us to 925 * not encrypt dynamic WEP control frames. 926 */ 927 sdata->control_port_protocol = params->crypto.control_port_ethertype; 928 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 929 sdata->control_port_over_nl80211 = 930 params->crypto.control_port_over_nl80211; 931 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 932 ¶ms->crypto, 933 sdata->vif.type); 934 935 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 936 vlan->control_port_protocol = 937 params->crypto.control_port_ethertype; 938 vlan->control_port_no_encrypt = 939 params->crypto.control_port_no_encrypt; 940 vlan->control_port_over_nl80211 = 941 params->crypto.control_port_over_nl80211; 942 vlan->encrypt_headroom = 943 ieee80211_cs_headroom(sdata->local, 944 ¶ms->crypto, 945 vlan->vif.type); 946 } 947 948 sdata->vif.bss_conf.dtim_period = params->dtim_period; 949 sdata->vif.bss_conf.enable_beacon = true; 950 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 951 952 sdata->vif.bss_conf.ssid_len = params->ssid_len; 953 if (params->ssid_len) 954 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 955 params->ssid_len); 956 sdata->vif.bss_conf.hidden_ssid = 957 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 958 959 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 960 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 961 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 962 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 963 if (params->p2p_opp_ps) 964 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 965 IEEE80211_P2P_OPPPS_ENABLE_BIT; 966 967 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 968 if (err < 0) { 969 ieee80211_vif_release_channel(sdata); 970 return err; 971 } 972 changed |= err; 973 974 err = drv_start_ap(sdata->local, sdata); 975 if (err) { 976 old = sdata_dereference(sdata->u.ap.beacon, sdata); 977 978 if (old) 979 kfree_rcu(old, rcu_head); 980 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 981 ieee80211_vif_release_channel(sdata); 982 return err; 983 } 984 985 ieee80211_recalc_dtim(local, sdata); 986 ieee80211_bss_info_change_notify(sdata, changed); 987 988 netif_carrier_on(dev); 989 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 990 netif_carrier_on(vlan->dev); 991 992 return 0; 993 } 994 995 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 996 struct cfg80211_beacon_data *params) 997 { 998 struct ieee80211_sub_if_data *sdata; 999 struct beacon_data *old; 1000 int err; 1001 1002 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1003 sdata_assert_lock(sdata); 1004 1005 /* don't allow changing the beacon while CSA is in place - offset 1006 * of channel switch counter may change 1007 */ 1008 if (sdata->vif.csa_active) 1009 return -EBUSY; 1010 1011 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1012 if (!old) 1013 return -ENOENT; 1014 1015 err = ieee80211_assign_beacon(sdata, params, NULL); 1016 if (err < 0) 1017 return err; 1018 ieee80211_bss_info_change_notify(sdata, err); 1019 return 0; 1020 } 1021 1022 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1023 { 1024 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1025 struct ieee80211_sub_if_data *vlan; 1026 struct ieee80211_local *local = sdata->local; 1027 struct beacon_data *old_beacon; 1028 struct probe_resp *old_probe_resp; 1029 struct cfg80211_chan_def chandef; 1030 1031 sdata_assert_lock(sdata); 1032 1033 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1034 if (!old_beacon) 1035 return -ENOENT; 1036 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1037 1038 /* abort any running channel switch */ 1039 mutex_lock(&local->mtx); 1040 sdata->vif.csa_active = false; 1041 if (sdata->csa_block_tx) { 1042 ieee80211_wake_vif_queues(local, sdata, 1043 IEEE80211_QUEUE_STOP_REASON_CSA); 1044 sdata->csa_block_tx = false; 1045 } 1046 1047 mutex_unlock(&local->mtx); 1048 1049 kfree(sdata->u.ap.next_beacon); 1050 sdata->u.ap.next_beacon = NULL; 1051 1052 /* turn off carrier for this interface and dependent VLANs */ 1053 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1054 netif_carrier_off(vlan->dev); 1055 netif_carrier_off(dev); 1056 1057 /* remove beacon and probe response */ 1058 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1059 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1060 kfree_rcu(old_beacon, rcu_head); 1061 if (old_probe_resp) 1062 kfree_rcu(old_probe_resp, rcu_head); 1063 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1064 1065 __sta_info_flush(sdata, true); 1066 ieee80211_free_keys(sdata, true); 1067 1068 sdata->vif.bss_conf.enable_beacon = false; 1069 sdata->vif.bss_conf.ssid_len = 0; 1070 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1071 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1072 1073 if (sdata->wdev.cac_started) { 1074 chandef = sdata->vif.bss_conf.chandef; 1075 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1076 cfg80211_cac_event(sdata->dev, &chandef, 1077 NL80211_RADAR_CAC_ABORTED, 1078 GFP_KERNEL); 1079 } 1080 1081 drv_stop_ap(sdata->local, sdata); 1082 1083 /* free all potentially still buffered bcast frames */ 1084 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1085 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1086 1087 mutex_lock(&local->mtx); 1088 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1089 ieee80211_vif_release_channel(sdata); 1090 mutex_unlock(&local->mtx); 1091 1092 return 0; 1093 } 1094 1095 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1096 struct iapp_layer2_update { 1097 u8 da[ETH_ALEN]; /* broadcast */ 1098 u8 sa[ETH_ALEN]; /* STA addr */ 1099 __be16 len; /* 6 */ 1100 u8 dsap; /* 0 */ 1101 u8 ssap; /* 0 */ 1102 u8 control; 1103 u8 xid_info[3]; 1104 } __packed; 1105 1106 static void ieee80211_send_layer2_update(struct sta_info *sta) 1107 { 1108 struct iapp_layer2_update *msg; 1109 struct sk_buff *skb; 1110 1111 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1112 * bridge devices */ 1113 1114 skb = dev_alloc_skb(sizeof(*msg)); 1115 if (!skb) 1116 return; 1117 msg = skb_put(skb, sizeof(*msg)); 1118 1119 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1120 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1121 1122 eth_broadcast_addr(msg->da); 1123 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1124 msg->len = htons(6); 1125 msg->dsap = 0; 1126 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1127 msg->control = 0xaf; /* XID response lsb.1111F101. 1128 * F=0 (no poll command; unsolicited frame) */ 1129 msg->xid_info[0] = 0x81; /* XID format identifier */ 1130 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1131 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1132 1133 skb->dev = sta->sdata->dev; 1134 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1135 memset(skb->cb, 0, sizeof(skb->cb)); 1136 netif_rx_ni(skb); 1137 } 1138 1139 static int sta_apply_auth_flags(struct ieee80211_local *local, 1140 struct sta_info *sta, 1141 u32 mask, u32 set) 1142 { 1143 int ret; 1144 1145 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1146 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1147 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1148 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1149 if (ret) 1150 return ret; 1151 } 1152 1153 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1154 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1155 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1156 /* 1157 * When peer becomes associated, init rate control as 1158 * well. Some drivers require rate control initialized 1159 * before drv_sta_state() is called. 1160 */ 1161 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1162 rate_control_rate_init(sta); 1163 1164 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1165 if (ret) 1166 return ret; 1167 } 1168 1169 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1170 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1171 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1172 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1173 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1174 else 1175 ret = 0; 1176 if (ret) 1177 return ret; 1178 } 1179 1180 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1181 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1182 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1183 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1184 if (ret) 1185 return ret; 1186 } 1187 1188 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1189 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1190 test_sta_flag(sta, WLAN_STA_AUTH)) { 1191 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1192 if (ret) 1193 return ret; 1194 } 1195 1196 return 0; 1197 } 1198 1199 static void sta_apply_mesh_params(struct ieee80211_local *local, 1200 struct sta_info *sta, 1201 struct station_parameters *params) 1202 { 1203 #ifdef CONFIG_MAC80211_MESH 1204 struct ieee80211_sub_if_data *sdata = sta->sdata; 1205 u32 changed = 0; 1206 1207 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1208 switch (params->plink_state) { 1209 case NL80211_PLINK_ESTAB: 1210 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1211 changed = mesh_plink_inc_estab_count(sdata); 1212 sta->mesh->plink_state = params->plink_state; 1213 sta->mesh->aid = params->peer_aid; 1214 1215 ieee80211_mps_sta_status_update(sta); 1216 changed |= ieee80211_mps_set_sta_local_pm(sta, 1217 sdata->u.mesh.mshcfg.power_mode); 1218 break; 1219 case NL80211_PLINK_LISTEN: 1220 case NL80211_PLINK_BLOCKED: 1221 case NL80211_PLINK_OPN_SNT: 1222 case NL80211_PLINK_OPN_RCVD: 1223 case NL80211_PLINK_CNF_RCVD: 1224 case NL80211_PLINK_HOLDING: 1225 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1226 changed = mesh_plink_dec_estab_count(sdata); 1227 sta->mesh->plink_state = params->plink_state; 1228 1229 ieee80211_mps_sta_status_update(sta); 1230 changed |= ieee80211_mps_set_sta_local_pm(sta, 1231 NL80211_MESH_POWER_UNKNOWN); 1232 break; 1233 default: 1234 /* nothing */ 1235 break; 1236 } 1237 } 1238 1239 switch (params->plink_action) { 1240 case NL80211_PLINK_ACTION_NO_ACTION: 1241 /* nothing */ 1242 break; 1243 case NL80211_PLINK_ACTION_OPEN: 1244 changed |= mesh_plink_open(sta); 1245 break; 1246 case NL80211_PLINK_ACTION_BLOCK: 1247 changed |= mesh_plink_block(sta); 1248 break; 1249 } 1250 1251 if (params->local_pm) 1252 changed |= ieee80211_mps_set_sta_local_pm(sta, 1253 params->local_pm); 1254 1255 ieee80211_mbss_info_change_notify(sdata, changed); 1256 #endif 1257 } 1258 1259 static int sta_apply_parameters(struct ieee80211_local *local, 1260 struct sta_info *sta, 1261 struct station_parameters *params) 1262 { 1263 int ret = 0; 1264 struct ieee80211_supported_band *sband; 1265 struct ieee80211_sub_if_data *sdata = sta->sdata; 1266 u32 mask, set; 1267 1268 sband = ieee80211_get_sband(sdata); 1269 if (!sband) 1270 return -EINVAL; 1271 1272 mask = params->sta_flags_mask; 1273 set = params->sta_flags_set; 1274 1275 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1276 /* 1277 * In mesh mode, ASSOCIATED isn't part of the nl80211 1278 * API but must follow AUTHENTICATED for driver state. 1279 */ 1280 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1281 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1282 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1283 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1284 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1285 /* 1286 * TDLS -- everything follows authorized, but 1287 * only becoming authorized is possible, not 1288 * going back 1289 */ 1290 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1291 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1292 BIT(NL80211_STA_FLAG_ASSOCIATED); 1293 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1294 BIT(NL80211_STA_FLAG_ASSOCIATED); 1295 } 1296 } 1297 1298 if (mask & BIT(NL80211_STA_FLAG_WME) && 1299 local->hw.queues >= IEEE80211_NUM_ACS) 1300 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1301 1302 /* auth flags will be set later for TDLS, 1303 * and for unassociated stations that move to assocaited */ 1304 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1305 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1306 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1307 ret = sta_apply_auth_flags(local, sta, mask, set); 1308 if (ret) 1309 return ret; 1310 } 1311 1312 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1313 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1314 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1315 else 1316 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1317 } 1318 1319 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1320 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1321 if (set & BIT(NL80211_STA_FLAG_MFP)) 1322 set_sta_flag(sta, WLAN_STA_MFP); 1323 else 1324 clear_sta_flag(sta, WLAN_STA_MFP); 1325 } 1326 1327 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1328 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1329 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1330 else 1331 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1332 } 1333 1334 /* mark TDLS channel switch support, if the AP allows it */ 1335 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1336 !sdata->u.mgd.tdls_chan_switch_prohibited && 1337 params->ext_capab_len >= 4 && 1338 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1339 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1340 1341 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1342 !sdata->u.mgd.tdls_wider_bw_prohibited && 1343 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1344 params->ext_capab_len >= 8 && 1345 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1346 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1347 1348 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1349 sta->sta.uapsd_queues = params->uapsd_queues; 1350 sta->sta.max_sp = params->max_sp; 1351 } 1352 1353 /* The sender might not have sent the last bit, consider it to be 0 */ 1354 if (params->ext_capab_len >= 8) { 1355 u8 val = (params->ext_capab[7] & 1356 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1357 1358 /* we did get all the bits, take the MSB as well */ 1359 if (params->ext_capab_len >= 9) { 1360 u8 val_msb = params->ext_capab[8] & 1361 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1362 val_msb <<= 1; 1363 val |= val_msb; 1364 } 1365 1366 switch (val) { 1367 case 1: 1368 sta->sta.max_amsdu_subframes = 32; 1369 break; 1370 case 2: 1371 sta->sta.max_amsdu_subframes = 16; 1372 break; 1373 case 3: 1374 sta->sta.max_amsdu_subframes = 8; 1375 break; 1376 default: 1377 sta->sta.max_amsdu_subframes = 0; 1378 } 1379 } 1380 1381 /* 1382 * cfg80211 validates this (1-2007) and allows setting the AID 1383 * only when creating a new station entry 1384 */ 1385 if (params->aid) 1386 sta->sta.aid = params->aid; 1387 1388 /* 1389 * Some of the following updates would be racy if called on an 1390 * existing station, via ieee80211_change_station(). However, 1391 * all such changes are rejected by cfg80211 except for updates 1392 * changing the supported rates on an existing but not yet used 1393 * TDLS peer. 1394 */ 1395 1396 if (params->listen_interval >= 0) 1397 sta->listen_interval = params->listen_interval; 1398 1399 if (params->supported_rates) { 1400 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1401 sband, params->supported_rates, 1402 params->supported_rates_len, 1403 &sta->sta.supp_rates[sband->band]); 1404 } 1405 1406 if (params->ht_capa) 1407 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1408 params->ht_capa, sta); 1409 1410 /* VHT can override some HT caps such as the A-MSDU max length */ 1411 if (params->vht_capa) 1412 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1413 params->vht_capa, sta); 1414 1415 if (params->opmode_notif_used) { 1416 /* returned value is only needed for rc update, but the 1417 * rc isn't initialized here yet, so ignore it 1418 */ 1419 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1420 sband->band); 1421 } 1422 1423 if (params->support_p2p_ps >= 0) 1424 sta->sta.support_p2p_ps = params->support_p2p_ps; 1425 1426 if (ieee80211_vif_is_mesh(&sdata->vif)) 1427 sta_apply_mesh_params(local, sta, params); 1428 1429 /* set the STA state after all sta info from usermode has been set */ 1430 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1431 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1432 ret = sta_apply_auth_flags(local, sta, mask, set); 1433 if (ret) 1434 return ret; 1435 } 1436 1437 return 0; 1438 } 1439 1440 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1441 const u8 *mac, 1442 struct station_parameters *params) 1443 { 1444 struct ieee80211_local *local = wiphy_priv(wiphy); 1445 struct sta_info *sta; 1446 struct ieee80211_sub_if_data *sdata; 1447 int err; 1448 int layer2_update; 1449 1450 if (params->vlan) { 1451 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1452 1453 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1454 sdata->vif.type != NL80211_IFTYPE_AP) 1455 return -EINVAL; 1456 } else 1457 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1458 1459 if (ether_addr_equal(mac, sdata->vif.addr)) 1460 return -EINVAL; 1461 1462 if (is_multicast_ether_addr(mac)) 1463 return -EINVAL; 1464 1465 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1466 if (!sta) 1467 return -ENOMEM; 1468 1469 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1470 sta->sta.tdls = true; 1471 1472 err = sta_apply_parameters(local, sta, params); 1473 if (err) { 1474 sta_info_free(local, sta); 1475 return err; 1476 } 1477 1478 /* 1479 * for TDLS and for unassociated station, rate control should be 1480 * initialized only when rates are known and station is marked 1481 * authorized/associated 1482 */ 1483 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1484 test_sta_flag(sta, WLAN_STA_ASSOC)) 1485 rate_control_rate_init(sta); 1486 1487 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1488 sdata->vif.type == NL80211_IFTYPE_AP; 1489 1490 err = sta_info_insert_rcu(sta); 1491 if (err) { 1492 rcu_read_unlock(); 1493 return err; 1494 } 1495 1496 if (layer2_update) 1497 ieee80211_send_layer2_update(sta); 1498 1499 rcu_read_unlock(); 1500 1501 return 0; 1502 } 1503 1504 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1505 struct station_del_parameters *params) 1506 { 1507 struct ieee80211_sub_if_data *sdata; 1508 1509 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1510 1511 if (params->mac) 1512 return sta_info_destroy_addr_bss(sdata, params->mac); 1513 1514 sta_info_flush(sdata); 1515 return 0; 1516 } 1517 1518 static int ieee80211_change_station(struct wiphy *wiphy, 1519 struct net_device *dev, const u8 *mac, 1520 struct station_parameters *params) 1521 { 1522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1523 struct ieee80211_local *local = wiphy_priv(wiphy); 1524 struct sta_info *sta; 1525 struct ieee80211_sub_if_data *vlansdata; 1526 enum cfg80211_station_type statype; 1527 int err; 1528 1529 mutex_lock(&local->sta_mtx); 1530 1531 sta = sta_info_get_bss(sdata, mac); 1532 if (!sta) { 1533 err = -ENOENT; 1534 goto out_err; 1535 } 1536 1537 switch (sdata->vif.type) { 1538 case NL80211_IFTYPE_MESH_POINT: 1539 if (sdata->u.mesh.user_mpm) 1540 statype = CFG80211_STA_MESH_PEER_USER; 1541 else 1542 statype = CFG80211_STA_MESH_PEER_KERNEL; 1543 break; 1544 case NL80211_IFTYPE_ADHOC: 1545 statype = CFG80211_STA_IBSS; 1546 break; 1547 case NL80211_IFTYPE_STATION: 1548 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1549 statype = CFG80211_STA_AP_STA; 1550 break; 1551 } 1552 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1553 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1554 else 1555 statype = CFG80211_STA_TDLS_PEER_SETUP; 1556 break; 1557 case NL80211_IFTYPE_AP: 1558 case NL80211_IFTYPE_AP_VLAN: 1559 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1560 statype = CFG80211_STA_AP_CLIENT; 1561 else 1562 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1563 break; 1564 default: 1565 err = -EOPNOTSUPP; 1566 goto out_err; 1567 } 1568 1569 err = cfg80211_check_station_change(wiphy, params, statype); 1570 if (err) 1571 goto out_err; 1572 1573 if (params->vlan && params->vlan != sta->sdata->dev) { 1574 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1575 1576 if (params->vlan->ieee80211_ptr->use_4addr) { 1577 if (vlansdata->u.vlan.sta) { 1578 err = -EBUSY; 1579 goto out_err; 1580 } 1581 1582 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1583 __ieee80211_check_fast_rx_iface(vlansdata); 1584 } 1585 1586 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1587 sta->sdata->u.vlan.sta) 1588 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1589 1590 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1591 ieee80211_vif_dec_num_mcast(sta->sdata); 1592 1593 sta->sdata = vlansdata; 1594 ieee80211_check_fast_xmit(sta); 1595 1596 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1597 ieee80211_vif_inc_num_mcast(sta->sdata); 1598 1599 ieee80211_send_layer2_update(sta); 1600 } 1601 1602 err = sta_apply_parameters(local, sta, params); 1603 if (err) 1604 goto out_err; 1605 1606 mutex_unlock(&local->sta_mtx); 1607 1608 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1609 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1610 sta->known_smps_mode != sta->sdata->bss->req_smps && 1611 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1612 sta_info_tx_streams(sta) != 1) { 1613 ht_dbg(sta->sdata, 1614 "%pM just authorized and MIMO capable - update SMPS\n", 1615 sta->sta.addr); 1616 ieee80211_send_smps_action(sta->sdata, 1617 sta->sdata->bss->req_smps, 1618 sta->sta.addr, 1619 sta->sdata->vif.bss_conf.bssid); 1620 } 1621 1622 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1623 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1624 ieee80211_recalc_ps(local); 1625 ieee80211_recalc_ps_vif(sdata); 1626 } 1627 1628 return 0; 1629 out_err: 1630 mutex_unlock(&local->sta_mtx); 1631 return err; 1632 } 1633 1634 #ifdef CONFIG_MAC80211_MESH 1635 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1636 const u8 *dst, const u8 *next_hop) 1637 { 1638 struct ieee80211_sub_if_data *sdata; 1639 struct mesh_path *mpath; 1640 struct sta_info *sta; 1641 1642 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1643 1644 rcu_read_lock(); 1645 sta = sta_info_get(sdata, next_hop); 1646 if (!sta) { 1647 rcu_read_unlock(); 1648 return -ENOENT; 1649 } 1650 1651 mpath = mesh_path_add(sdata, dst); 1652 if (IS_ERR(mpath)) { 1653 rcu_read_unlock(); 1654 return PTR_ERR(mpath); 1655 } 1656 1657 mesh_path_fix_nexthop(mpath, sta); 1658 1659 rcu_read_unlock(); 1660 return 0; 1661 } 1662 1663 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1664 const u8 *dst) 1665 { 1666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1667 1668 if (dst) 1669 return mesh_path_del(sdata, dst); 1670 1671 mesh_path_flush_by_iface(sdata); 1672 return 0; 1673 } 1674 1675 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1676 const u8 *dst, const u8 *next_hop) 1677 { 1678 struct ieee80211_sub_if_data *sdata; 1679 struct mesh_path *mpath; 1680 struct sta_info *sta; 1681 1682 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1683 1684 rcu_read_lock(); 1685 1686 sta = sta_info_get(sdata, next_hop); 1687 if (!sta) { 1688 rcu_read_unlock(); 1689 return -ENOENT; 1690 } 1691 1692 mpath = mesh_path_lookup(sdata, dst); 1693 if (!mpath) { 1694 rcu_read_unlock(); 1695 return -ENOENT; 1696 } 1697 1698 mesh_path_fix_nexthop(mpath, sta); 1699 1700 rcu_read_unlock(); 1701 return 0; 1702 } 1703 1704 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1705 struct mpath_info *pinfo) 1706 { 1707 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1708 1709 if (next_hop_sta) 1710 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1711 else 1712 eth_zero_addr(next_hop); 1713 1714 memset(pinfo, 0, sizeof(*pinfo)); 1715 1716 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1717 1718 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1719 MPATH_INFO_SN | 1720 MPATH_INFO_METRIC | 1721 MPATH_INFO_EXPTIME | 1722 MPATH_INFO_DISCOVERY_TIMEOUT | 1723 MPATH_INFO_DISCOVERY_RETRIES | 1724 MPATH_INFO_FLAGS; 1725 1726 pinfo->frame_qlen = mpath->frame_queue.qlen; 1727 pinfo->sn = mpath->sn; 1728 pinfo->metric = mpath->metric; 1729 if (time_before(jiffies, mpath->exp_time)) 1730 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1731 pinfo->discovery_timeout = 1732 jiffies_to_msecs(mpath->discovery_timeout); 1733 pinfo->discovery_retries = mpath->discovery_retries; 1734 if (mpath->flags & MESH_PATH_ACTIVE) 1735 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1736 if (mpath->flags & MESH_PATH_RESOLVING) 1737 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1738 if (mpath->flags & MESH_PATH_SN_VALID) 1739 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1740 if (mpath->flags & MESH_PATH_FIXED) 1741 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1742 if (mpath->flags & MESH_PATH_RESOLVED) 1743 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1744 } 1745 1746 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1747 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1748 1749 { 1750 struct ieee80211_sub_if_data *sdata; 1751 struct mesh_path *mpath; 1752 1753 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1754 1755 rcu_read_lock(); 1756 mpath = mesh_path_lookup(sdata, dst); 1757 if (!mpath) { 1758 rcu_read_unlock(); 1759 return -ENOENT; 1760 } 1761 memcpy(dst, mpath->dst, ETH_ALEN); 1762 mpath_set_pinfo(mpath, next_hop, pinfo); 1763 rcu_read_unlock(); 1764 return 0; 1765 } 1766 1767 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1768 int idx, u8 *dst, u8 *next_hop, 1769 struct mpath_info *pinfo) 1770 { 1771 struct ieee80211_sub_if_data *sdata; 1772 struct mesh_path *mpath; 1773 1774 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1775 1776 rcu_read_lock(); 1777 mpath = mesh_path_lookup_by_idx(sdata, idx); 1778 if (!mpath) { 1779 rcu_read_unlock(); 1780 return -ENOENT; 1781 } 1782 memcpy(dst, mpath->dst, ETH_ALEN); 1783 mpath_set_pinfo(mpath, next_hop, pinfo); 1784 rcu_read_unlock(); 1785 return 0; 1786 } 1787 1788 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1789 struct mpath_info *pinfo) 1790 { 1791 memset(pinfo, 0, sizeof(*pinfo)); 1792 memcpy(mpp, mpath->mpp, ETH_ALEN); 1793 1794 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1795 } 1796 1797 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1798 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1799 1800 { 1801 struct ieee80211_sub_if_data *sdata; 1802 struct mesh_path *mpath; 1803 1804 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1805 1806 rcu_read_lock(); 1807 mpath = mpp_path_lookup(sdata, dst); 1808 if (!mpath) { 1809 rcu_read_unlock(); 1810 return -ENOENT; 1811 } 1812 memcpy(dst, mpath->dst, ETH_ALEN); 1813 mpp_set_pinfo(mpath, mpp, pinfo); 1814 rcu_read_unlock(); 1815 return 0; 1816 } 1817 1818 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1819 int idx, u8 *dst, u8 *mpp, 1820 struct mpath_info *pinfo) 1821 { 1822 struct ieee80211_sub_if_data *sdata; 1823 struct mesh_path *mpath; 1824 1825 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1826 1827 rcu_read_lock(); 1828 mpath = mpp_path_lookup_by_idx(sdata, idx); 1829 if (!mpath) { 1830 rcu_read_unlock(); 1831 return -ENOENT; 1832 } 1833 memcpy(dst, mpath->dst, ETH_ALEN); 1834 mpp_set_pinfo(mpath, mpp, pinfo); 1835 rcu_read_unlock(); 1836 return 0; 1837 } 1838 1839 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1840 struct net_device *dev, 1841 struct mesh_config *conf) 1842 { 1843 struct ieee80211_sub_if_data *sdata; 1844 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1845 1846 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1847 return 0; 1848 } 1849 1850 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1851 { 1852 return (mask >> (parm-1)) & 0x1; 1853 } 1854 1855 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1856 const struct mesh_setup *setup) 1857 { 1858 u8 *new_ie; 1859 const u8 *old_ie; 1860 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1861 struct ieee80211_sub_if_data, u.mesh); 1862 1863 /* allocate information elements */ 1864 new_ie = NULL; 1865 old_ie = ifmsh->ie; 1866 1867 if (setup->ie_len) { 1868 new_ie = kmemdup(setup->ie, setup->ie_len, 1869 GFP_KERNEL); 1870 if (!new_ie) 1871 return -ENOMEM; 1872 } 1873 ifmsh->ie_len = setup->ie_len; 1874 ifmsh->ie = new_ie; 1875 kfree(old_ie); 1876 1877 /* now copy the rest of the setup parameters */ 1878 ifmsh->mesh_id_len = setup->mesh_id_len; 1879 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1880 ifmsh->mesh_sp_id = setup->sync_method; 1881 ifmsh->mesh_pp_id = setup->path_sel_proto; 1882 ifmsh->mesh_pm_id = setup->path_metric; 1883 ifmsh->user_mpm = setup->user_mpm; 1884 ifmsh->mesh_auth_id = setup->auth_id; 1885 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1886 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1887 if (setup->is_authenticated) 1888 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1889 if (setup->is_secure) 1890 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1891 1892 /* mcast rate setting in Mesh Node */ 1893 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1894 sizeof(setup->mcast_rate)); 1895 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1896 1897 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1898 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1899 1900 return 0; 1901 } 1902 1903 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1904 struct net_device *dev, u32 mask, 1905 const struct mesh_config *nconf) 1906 { 1907 struct mesh_config *conf; 1908 struct ieee80211_sub_if_data *sdata; 1909 struct ieee80211_if_mesh *ifmsh; 1910 1911 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1912 ifmsh = &sdata->u.mesh; 1913 1914 /* Set the config options which we are interested in setting */ 1915 conf = &(sdata->u.mesh.mshcfg); 1916 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1917 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1918 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1919 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1920 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1921 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1922 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1923 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1924 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1925 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1926 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1927 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1928 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1929 conf->element_ttl = nconf->element_ttl; 1930 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1931 if (ifmsh->user_mpm) 1932 return -EBUSY; 1933 conf->auto_open_plinks = nconf->auto_open_plinks; 1934 } 1935 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1936 conf->dot11MeshNbrOffsetMaxNeighbor = 1937 nconf->dot11MeshNbrOffsetMaxNeighbor; 1938 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1939 conf->dot11MeshHWMPmaxPREQretries = 1940 nconf->dot11MeshHWMPmaxPREQretries; 1941 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1942 conf->path_refresh_time = nconf->path_refresh_time; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1944 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1945 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1946 conf->dot11MeshHWMPactivePathTimeout = 1947 nconf->dot11MeshHWMPactivePathTimeout; 1948 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1949 conf->dot11MeshHWMPpreqMinInterval = 1950 nconf->dot11MeshHWMPpreqMinInterval; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1952 conf->dot11MeshHWMPperrMinInterval = 1953 nconf->dot11MeshHWMPperrMinInterval; 1954 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1955 mask)) 1956 conf->dot11MeshHWMPnetDiameterTraversalTime = 1957 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1958 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1959 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1960 ieee80211_mesh_root_setup(ifmsh); 1961 } 1962 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1963 /* our current gate announcement implementation rides on root 1964 * announcements, so require this ifmsh to also be a root node 1965 * */ 1966 if (nconf->dot11MeshGateAnnouncementProtocol && 1967 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1968 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1969 ieee80211_mesh_root_setup(ifmsh); 1970 } 1971 conf->dot11MeshGateAnnouncementProtocol = 1972 nconf->dot11MeshGateAnnouncementProtocol; 1973 } 1974 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1975 conf->dot11MeshHWMPRannInterval = 1976 nconf->dot11MeshHWMPRannInterval; 1977 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1978 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1979 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1980 /* our RSSI threshold implementation is supported only for 1981 * devices that report signal in dBm. 1982 */ 1983 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 1984 return -ENOTSUPP; 1985 conf->rssi_threshold = nconf->rssi_threshold; 1986 } 1987 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1988 conf->ht_opmode = nconf->ht_opmode; 1989 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1990 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1991 } 1992 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1993 conf->dot11MeshHWMPactivePathToRootTimeout = 1994 nconf->dot11MeshHWMPactivePathToRootTimeout; 1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1996 conf->dot11MeshHWMProotInterval = 1997 nconf->dot11MeshHWMProotInterval; 1998 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1999 conf->dot11MeshHWMPconfirmationInterval = 2000 nconf->dot11MeshHWMPconfirmationInterval; 2001 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2002 conf->power_mode = nconf->power_mode; 2003 ieee80211_mps_local_status_update(sdata); 2004 } 2005 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2006 conf->dot11MeshAwakeWindowDuration = 2007 nconf->dot11MeshAwakeWindowDuration; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2009 conf->plink_timeout = nconf->plink_timeout; 2010 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2011 return 0; 2012 } 2013 2014 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2015 const struct mesh_config *conf, 2016 const struct mesh_setup *setup) 2017 { 2018 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2019 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2020 int err; 2021 2022 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2023 err = copy_mesh_setup(ifmsh, setup); 2024 if (err) 2025 return err; 2026 2027 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2028 2029 /* can mesh use other SMPS modes? */ 2030 sdata->smps_mode = IEEE80211_SMPS_OFF; 2031 sdata->needed_rx_chains = sdata->local->rx_chains; 2032 2033 mutex_lock(&sdata->local->mtx); 2034 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2035 IEEE80211_CHANCTX_SHARED); 2036 mutex_unlock(&sdata->local->mtx); 2037 if (err) 2038 return err; 2039 2040 return ieee80211_start_mesh(sdata); 2041 } 2042 2043 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2044 { 2045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2046 2047 ieee80211_stop_mesh(sdata); 2048 mutex_lock(&sdata->local->mtx); 2049 ieee80211_vif_release_channel(sdata); 2050 mutex_unlock(&sdata->local->mtx); 2051 2052 return 0; 2053 } 2054 #endif 2055 2056 static int ieee80211_change_bss(struct wiphy *wiphy, 2057 struct net_device *dev, 2058 struct bss_parameters *params) 2059 { 2060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2061 struct ieee80211_supported_band *sband; 2062 u32 changed = 0; 2063 2064 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2065 return -ENOENT; 2066 2067 sband = ieee80211_get_sband(sdata); 2068 if (!sband) 2069 return -EINVAL; 2070 2071 if (params->use_cts_prot >= 0) { 2072 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2073 changed |= BSS_CHANGED_ERP_CTS_PROT; 2074 } 2075 if (params->use_short_preamble >= 0) { 2076 sdata->vif.bss_conf.use_short_preamble = 2077 params->use_short_preamble; 2078 changed |= BSS_CHANGED_ERP_PREAMBLE; 2079 } 2080 2081 if (!sdata->vif.bss_conf.use_short_slot && 2082 sband->band == NL80211_BAND_5GHZ) { 2083 sdata->vif.bss_conf.use_short_slot = true; 2084 changed |= BSS_CHANGED_ERP_SLOT; 2085 } 2086 2087 if (params->use_short_slot_time >= 0) { 2088 sdata->vif.bss_conf.use_short_slot = 2089 params->use_short_slot_time; 2090 changed |= BSS_CHANGED_ERP_SLOT; 2091 } 2092 2093 if (params->basic_rates) { 2094 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2095 wiphy->bands[sband->band], 2096 params->basic_rates, 2097 params->basic_rates_len, 2098 &sdata->vif.bss_conf.basic_rates); 2099 changed |= BSS_CHANGED_BASIC_RATES; 2100 ieee80211_check_rate_mask(sdata); 2101 } 2102 2103 if (params->ap_isolate >= 0) { 2104 if (params->ap_isolate) 2105 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2106 else 2107 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2108 ieee80211_check_fast_rx_iface(sdata); 2109 } 2110 2111 if (params->ht_opmode >= 0) { 2112 sdata->vif.bss_conf.ht_operation_mode = 2113 (u16) params->ht_opmode; 2114 changed |= BSS_CHANGED_HT; 2115 } 2116 2117 if (params->p2p_ctwindow >= 0) { 2118 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2119 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2120 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2121 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2122 changed |= BSS_CHANGED_P2P_PS; 2123 } 2124 2125 if (params->p2p_opp_ps > 0) { 2126 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2127 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2128 changed |= BSS_CHANGED_P2P_PS; 2129 } else if (params->p2p_opp_ps == 0) { 2130 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2131 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2132 changed |= BSS_CHANGED_P2P_PS; 2133 } 2134 2135 ieee80211_bss_info_change_notify(sdata, changed); 2136 2137 return 0; 2138 } 2139 2140 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2141 struct net_device *dev, 2142 struct ieee80211_txq_params *params) 2143 { 2144 struct ieee80211_local *local = wiphy_priv(wiphy); 2145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2146 struct ieee80211_tx_queue_params p; 2147 2148 if (!local->ops->conf_tx) 2149 return -EOPNOTSUPP; 2150 2151 if (local->hw.queues < IEEE80211_NUM_ACS) 2152 return -EOPNOTSUPP; 2153 2154 memset(&p, 0, sizeof(p)); 2155 p.aifs = params->aifs; 2156 p.cw_max = params->cwmax; 2157 p.cw_min = params->cwmin; 2158 p.txop = params->txop; 2159 2160 /* 2161 * Setting tx queue params disables u-apsd because it's only 2162 * called in master mode. 2163 */ 2164 p.uapsd = false; 2165 2166 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2167 2168 sdata->tx_conf[params->ac] = p; 2169 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2170 wiphy_debug(local->hw.wiphy, 2171 "failed to set TX queue parameters for AC %d\n", 2172 params->ac); 2173 return -EINVAL; 2174 } 2175 2176 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2177 2178 return 0; 2179 } 2180 2181 #ifdef CONFIG_PM 2182 static int ieee80211_suspend(struct wiphy *wiphy, 2183 struct cfg80211_wowlan *wowlan) 2184 { 2185 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2186 } 2187 2188 static int ieee80211_resume(struct wiphy *wiphy) 2189 { 2190 return __ieee80211_resume(wiphy_priv(wiphy)); 2191 } 2192 #else 2193 #define ieee80211_suspend NULL 2194 #define ieee80211_resume NULL 2195 #endif 2196 2197 static int ieee80211_scan(struct wiphy *wiphy, 2198 struct cfg80211_scan_request *req) 2199 { 2200 struct ieee80211_sub_if_data *sdata; 2201 2202 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2203 2204 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2205 case NL80211_IFTYPE_STATION: 2206 case NL80211_IFTYPE_ADHOC: 2207 case NL80211_IFTYPE_MESH_POINT: 2208 case NL80211_IFTYPE_P2P_CLIENT: 2209 case NL80211_IFTYPE_P2P_DEVICE: 2210 break; 2211 case NL80211_IFTYPE_P2P_GO: 2212 if (sdata->local->ops->hw_scan) 2213 break; 2214 /* 2215 * FIXME: implement NoA while scanning in software, 2216 * for now fall through to allow scanning only when 2217 * beaconing hasn't been configured yet 2218 */ 2219 /* fall through */ 2220 case NL80211_IFTYPE_AP: 2221 /* 2222 * If the scan has been forced (and the driver supports 2223 * forcing), don't care about being beaconing already. 2224 * This will create problems to the attached stations (e.g. all 2225 * the frames sent while scanning on other channel will be 2226 * lost) 2227 */ 2228 if (sdata->u.ap.beacon && 2229 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2230 !(req->flags & NL80211_SCAN_FLAG_AP))) 2231 return -EOPNOTSUPP; 2232 break; 2233 case NL80211_IFTYPE_NAN: 2234 default: 2235 return -EOPNOTSUPP; 2236 } 2237 2238 return ieee80211_request_scan(sdata, req); 2239 } 2240 2241 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2242 { 2243 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2244 } 2245 2246 static int 2247 ieee80211_sched_scan_start(struct wiphy *wiphy, 2248 struct net_device *dev, 2249 struct cfg80211_sched_scan_request *req) 2250 { 2251 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2252 2253 if (!sdata->local->ops->sched_scan_start) 2254 return -EOPNOTSUPP; 2255 2256 return ieee80211_request_sched_scan_start(sdata, req); 2257 } 2258 2259 static int 2260 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2261 u64 reqid) 2262 { 2263 struct ieee80211_local *local = wiphy_priv(wiphy); 2264 2265 if (!local->ops->sched_scan_stop) 2266 return -EOPNOTSUPP; 2267 2268 return ieee80211_request_sched_scan_stop(local); 2269 } 2270 2271 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2272 struct cfg80211_auth_request *req) 2273 { 2274 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2275 } 2276 2277 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2278 struct cfg80211_assoc_request *req) 2279 { 2280 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2281 } 2282 2283 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2284 struct cfg80211_deauth_request *req) 2285 { 2286 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2287 } 2288 2289 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2290 struct cfg80211_disassoc_request *req) 2291 { 2292 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2293 } 2294 2295 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2296 struct cfg80211_ibss_params *params) 2297 { 2298 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2299 } 2300 2301 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2302 { 2303 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2304 } 2305 2306 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2307 struct ocb_setup *setup) 2308 { 2309 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2310 } 2311 2312 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2313 { 2314 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2315 } 2316 2317 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2318 int rate[NUM_NL80211_BANDS]) 2319 { 2320 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2321 2322 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2323 sizeof(int) * NUM_NL80211_BANDS); 2324 2325 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2326 2327 return 0; 2328 } 2329 2330 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2331 { 2332 struct ieee80211_local *local = wiphy_priv(wiphy); 2333 int err; 2334 2335 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2336 ieee80211_check_fast_xmit_all(local); 2337 2338 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2339 2340 if (err) { 2341 ieee80211_check_fast_xmit_all(local); 2342 return err; 2343 } 2344 } 2345 2346 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2347 (changed & WIPHY_PARAM_DYN_ACK)) { 2348 s16 coverage_class; 2349 2350 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2351 wiphy->coverage_class : -1; 2352 err = drv_set_coverage_class(local, coverage_class); 2353 2354 if (err) 2355 return err; 2356 } 2357 2358 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2359 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2360 2361 if (err) 2362 return err; 2363 } 2364 2365 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2366 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2367 return -EINVAL; 2368 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2369 } 2370 if (changed & WIPHY_PARAM_RETRY_LONG) { 2371 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2372 return -EINVAL; 2373 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2374 } 2375 if (changed & 2376 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2377 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2378 2379 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2380 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2381 WIPHY_PARAM_TXQ_QUANTUM)) 2382 ieee80211_txq_set_params(local); 2383 2384 return 0; 2385 } 2386 2387 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2388 struct wireless_dev *wdev, 2389 enum nl80211_tx_power_setting type, int mbm) 2390 { 2391 struct ieee80211_local *local = wiphy_priv(wiphy); 2392 struct ieee80211_sub_if_data *sdata; 2393 enum nl80211_tx_power_setting txp_type = type; 2394 bool update_txp_type = false; 2395 bool has_monitor = false; 2396 2397 if (wdev) { 2398 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2399 2400 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2401 sdata = rtnl_dereference(local->monitor_sdata); 2402 if (!sdata) 2403 return -EOPNOTSUPP; 2404 } 2405 2406 switch (type) { 2407 case NL80211_TX_POWER_AUTOMATIC: 2408 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2409 txp_type = NL80211_TX_POWER_LIMITED; 2410 break; 2411 case NL80211_TX_POWER_LIMITED: 2412 case NL80211_TX_POWER_FIXED: 2413 if (mbm < 0 || (mbm % 100)) 2414 return -EOPNOTSUPP; 2415 sdata->user_power_level = MBM_TO_DBM(mbm); 2416 break; 2417 } 2418 2419 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2420 update_txp_type = true; 2421 sdata->vif.bss_conf.txpower_type = txp_type; 2422 } 2423 2424 ieee80211_recalc_txpower(sdata, update_txp_type); 2425 2426 return 0; 2427 } 2428 2429 switch (type) { 2430 case NL80211_TX_POWER_AUTOMATIC: 2431 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2432 txp_type = NL80211_TX_POWER_LIMITED; 2433 break; 2434 case NL80211_TX_POWER_LIMITED: 2435 case NL80211_TX_POWER_FIXED: 2436 if (mbm < 0 || (mbm % 100)) 2437 return -EOPNOTSUPP; 2438 local->user_power_level = MBM_TO_DBM(mbm); 2439 break; 2440 } 2441 2442 mutex_lock(&local->iflist_mtx); 2443 list_for_each_entry(sdata, &local->interfaces, list) { 2444 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2445 has_monitor = true; 2446 continue; 2447 } 2448 sdata->user_power_level = local->user_power_level; 2449 if (txp_type != sdata->vif.bss_conf.txpower_type) 2450 update_txp_type = true; 2451 sdata->vif.bss_conf.txpower_type = txp_type; 2452 } 2453 list_for_each_entry(sdata, &local->interfaces, list) { 2454 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2455 continue; 2456 ieee80211_recalc_txpower(sdata, update_txp_type); 2457 } 2458 mutex_unlock(&local->iflist_mtx); 2459 2460 if (has_monitor) { 2461 sdata = rtnl_dereference(local->monitor_sdata); 2462 if (sdata) { 2463 sdata->user_power_level = local->user_power_level; 2464 if (txp_type != sdata->vif.bss_conf.txpower_type) 2465 update_txp_type = true; 2466 sdata->vif.bss_conf.txpower_type = txp_type; 2467 2468 ieee80211_recalc_txpower(sdata, update_txp_type); 2469 } 2470 } 2471 2472 return 0; 2473 } 2474 2475 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2476 struct wireless_dev *wdev, 2477 int *dbm) 2478 { 2479 struct ieee80211_local *local = wiphy_priv(wiphy); 2480 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2481 2482 if (local->ops->get_txpower) 2483 return drv_get_txpower(local, sdata, dbm); 2484 2485 if (!local->use_chanctx) 2486 *dbm = local->hw.conf.power_level; 2487 else 2488 *dbm = sdata->vif.bss_conf.txpower; 2489 2490 return 0; 2491 } 2492 2493 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2494 const u8 *addr) 2495 { 2496 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2497 2498 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2499 2500 return 0; 2501 } 2502 2503 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2504 { 2505 struct ieee80211_local *local = wiphy_priv(wiphy); 2506 2507 drv_rfkill_poll(local); 2508 } 2509 2510 #ifdef CONFIG_NL80211_TESTMODE 2511 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2512 struct wireless_dev *wdev, 2513 void *data, int len) 2514 { 2515 struct ieee80211_local *local = wiphy_priv(wiphy); 2516 struct ieee80211_vif *vif = NULL; 2517 2518 if (!local->ops->testmode_cmd) 2519 return -EOPNOTSUPP; 2520 2521 if (wdev) { 2522 struct ieee80211_sub_if_data *sdata; 2523 2524 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2525 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2526 vif = &sdata->vif; 2527 } 2528 2529 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2530 } 2531 2532 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2533 struct sk_buff *skb, 2534 struct netlink_callback *cb, 2535 void *data, int len) 2536 { 2537 struct ieee80211_local *local = wiphy_priv(wiphy); 2538 2539 if (!local->ops->testmode_dump) 2540 return -EOPNOTSUPP; 2541 2542 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2543 } 2544 #endif 2545 2546 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2547 enum ieee80211_smps_mode smps_mode) 2548 { 2549 struct sta_info *sta; 2550 enum ieee80211_smps_mode old_req; 2551 2552 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2553 return -EINVAL; 2554 2555 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2556 return 0; 2557 2558 old_req = sdata->u.ap.req_smps; 2559 sdata->u.ap.req_smps = smps_mode; 2560 2561 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2562 if (old_req == smps_mode || 2563 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2564 return 0; 2565 2566 ht_dbg(sdata, 2567 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2568 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2569 2570 mutex_lock(&sdata->local->sta_mtx); 2571 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2572 /* 2573 * Only stations associated to our AP and 2574 * associated VLANs 2575 */ 2576 if (sta->sdata->bss != &sdata->u.ap) 2577 continue; 2578 2579 /* This station doesn't support MIMO - skip it */ 2580 if (sta_info_tx_streams(sta) == 1) 2581 continue; 2582 2583 /* 2584 * Don't wake up a STA just to send the action frame 2585 * unless we are getting more restrictive. 2586 */ 2587 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2588 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2589 smps_mode)) { 2590 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2591 sta->sta.addr); 2592 continue; 2593 } 2594 2595 /* 2596 * If the STA is not authorized, wait until it gets 2597 * authorized and the action frame will be sent then. 2598 */ 2599 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2600 continue; 2601 2602 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2603 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2604 sdata->vif.bss_conf.bssid); 2605 } 2606 mutex_unlock(&sdata->local->sta_mtx); 2607 2608 sdata->smps_mode = smps_mode; 2609 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2610 2611 return 0; 2612 } 2613 2614 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2615 enum ieee80211_smps_mode smps_mode) 2616 { 2617 const u8 *ap; 2618 enum ieee80211_smps_mode old_req; 2619 int err; 2620 struct sta_info *sta; 2621 bool tdls_peer_found = false; 2622 2623 lockdep_assert_held(&sdata->wdev.mtx); 2624 2625 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2626 return -EINVAL; 2627 2628 old_req = sdata->u.mgd.req_smps; 2629 sdata->u.mgd.req_smps = smps_mode; 2630 2631 if (old_req == smps_mode && 2632 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2633 return 0; 2634 2635 /* 2636 * If not associated, or current association is not an HT 2637 * association, there's no need to do anything, just store 2638 * the new value until we associate. 2639 */ 2640 if (!sdata->u.mgd.associated || 2641 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2642 return 0; 2643 2644 ap = sdata->u.mgd.associated->bssid; 2645 2646 rcu_read_lock(); 2647 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2648 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2649 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2650 continue; 2651 2652 tdls_peer_found = true; 2653 break; 2654 } 2655 rcu_read_unlock(); 2656 2657 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2658 if (tdls_peer_found || !sdata->u.mgd.powersave) 2659 smps_mode = IEEE80211_SMPS_OFF; 2660 else 2661 smps_mode = IEEE80211_SMPS_DYNAMIC; 2662 } 2663 2664 /* send SM PS frame to AP */ 2665 err = ieee80211_send_smps_action(sdata, smps_mode, 2666 ap, ap); 2667 if (err) 2668 sdata->u.mgd.req_smps = old_req; 2669 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2670 ieee80211_teardown_tdls_peers(sdata); 2671 2672 return err; 2673 } 2674 2675 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2676 bool enabled, int timeout) 2677 { 2678 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2679 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2680 2681 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2682 return -EOPNOTSUPP; 2683 2684 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2685 return -EOPNOTSUPP; 2686 2687 if (enabled == sdata->u.mgd.powersave && 2688 timeout == local->dynamic_ps_forced_timeout) 2689 return 0; 2690 2691 sdata->u.mgd.powersave = enabled; 2692 local->dynamic_ps_forced_timeout = timeout; 2693 2694 /* no change, but if automatic follow powersave */ 2695 sdata_lock(sdata); 2696 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2697 sdata_unlock(sdata); 2698 2699 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2700 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2701 2702 ieee80211_recalc_ps(local); 2703 ieee80211_recalc_ps_vif(sdata); 2704 ieee80211_check_fast_rx_iface(sdata); 2705 2706 return 0; 2707 } 2708 2709 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2710 struct net_device *dev, 2711 s32 rssi_thold, u32 rssi_hyst) 2712 { 2713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2714 struct ieee80211_vif *vif = &sdata->vif; 2715 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2716 2717 if (rssi_thold == bss_conf->cqm_rssi_thold && 2718 rssi_hyst == bss_conf->cqm_rssi_hyst) 2719 return 0; 2720 2721 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2722 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2723 return -EOPNOTSUPP; 2724 2725 bss_conf->cqm_rssi_thold = rssi_thold; 2726 bss_conf->cqm_rssi_hyst = rssi_hyst; 2727 bss_conf->cqm_rssi_low = 0; 2728 bss_conf->cqm_rssi_high = 0; 2729 sdata->u.mgd.last_cqm_event_signal = 0; 2730 2731 /* tell the driver upon association, unless already associated */ 2732 if (sdata->u.mgd.associated && 2733 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2734 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2735 2736 return 0; 2737 } 2738 2739 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2740 struct net_device *dev, 2741 s32 rssi_low, s32 rssi_high) 2742 { 2743 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2744 struct ieee80211_vif *vif = &sdata->vif; 2745 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2746 2747 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2748 return -EOPNOTSUPP; 2749 2750 bss_conf->cqm_rssi_low = rssi_low; 2751 bss_conf->cqm_rssi_high = rssi_high; 2752 bss_conf->cqm_rssi_thold = 0; 2753 bss_conf->cqm_rssi_hyst = 0; 2754 sdata->u.mgd.last_cqm_event_signal = 0; 2755 2756 /* tell the driver upon association, unless already associated */ 2757 if (sdata->u.mgd.associated && 2758 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2759 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2760 2761 return 0; 2762 } 2763 2764 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2765 struct net_device *dev, 2766 const u8 *addr, 2767 const struct cfg80211_bitrate_mask *mask) 2768 { 2769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2770 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2771 int i, ret; 2772 2773 if (!ieee80211_sdata_running(sdata)) 2774 return -ENETDOWN; 2775 2776 /* 2777 * If active validate the setting and reject it if it doesn't leave 2778 * at least one basic rate usable, since we really have to be able 2779 * to send something, and if we're an AP we have to be able to do 2780 * so at a basic rate so that all clients can receive it. 2781 */ 2782 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2783 sdata->vif.bss_conf.chandef.chan) { 2784 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2785 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2786 2787 if (!(mask->control[band].legacy & basic_rates)) 2788 return -EINVAL; 2789 } 2790 2791 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2792 ret = drv_set_bitrate_mask(local, sdata, mask); 2793 if (ret) 2794 return ret; 2795 } 2796 2797 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2798 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2799 int j; 2800 2801 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2802 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2803 sizeof(mask->control[i].ht_mcs)); 2804 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2805 mask->control[i].vht_mcs, 2806 sizeof(mask->control[i].vht_mcs)); 2807 2808 sdata->rc_has_mcs_mask[i] = false; 2809 sdata->rc_has_vht_mcs_mask[i] = false; 2810 if (!sband) 2811 continue; 2812 2813 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2814 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2815 sdata->rc_has_mcs_mask[i] = true; 2816 break; 2817 } 2818 } 2819 2820 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2821 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2822 sdata->rc_has_vht_mcs_mask[i] = true; 2823 break; 2824 } 2825 } 2826 } 2827 2828 return 0; 2829 } 2830 2831 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2832 struct net_device *dev, 2833 struct cfg80211_chan_def *chandef, 2834 u32 cac_time_ms) 2835 { 2836 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2837 struct ieee80211_local *local = sdata->local; 2838 int err; 2839 2840 mutex_lock(&local->mtx); 2841 if (!list_empty(&local->roc_list) || local->scanning) { 2842 err = -EBUSY; 2843 goto out_unlock; 2844 } 2845 2846 /* whatever, but channel contexts should not complain about that one */ 2847 sdata->smps_mode = IEEE80211_SMPS_OFF; 2848 sdata->needed_rx_chains = local->rx_chains; 2849 2850 err = ieee80211_vif_use_channel(sdata, chandef, 2851 IEEE80211_CHANCTX_SHARED); 2852 if (err) 2853 goto out_unlock; 2854 2855 ieee80211_queue_delayed_work(&sdata->local->hw, 2856 &sdata->dfs_cac_timer_work, 2857 msecs_to_jiffies(cac_time_ms)); 2858 2859 out_unlock: 2860 mutex_unlock(&local->mtx); 2861 return err; 2862 } 2863 2864 static struct cfg80211_beacon_data * 2865 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2866 { 2867 struct cfg80211_beacon_data *new_beacon; 2868 u8 *pos; 2869 int len; 2870 2871 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2872 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2873 beacon->probe_resp_len; 2874 2875 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2876 if (!new_beacon) 2877 return NULL; 2878 2879 pos = (u8 *)(new_beacon + 1); 2880 if (beacon->head_len) { 2881 new_beacon->head_len = beacon->head_len; 2882 new_beacon->head = pos; 2883 memcpy(pos, beacon->head, beacon->head_len); 2884 pos += beacon->head_len; 2885 } 2886 if (beacon->tail_len) { 2887 new_beacon->tail_len = beacon->tail_len; 2888 new_beacon->tail = pos; 2889 memcpy(pos, beacon->tail, beacon->tail_len); 2890 pos += beacon->tail_len; 2891 } 2892 if (beacon->beacon_ies_len) { 2893 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2894 new_beacon->beacon_ies = pos; 2895 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2896 pos += beacon->beacon_ies_len; 2897 } 2898 if (beacon->proberesp_ies_len) { 2899 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2900 new_beacon->proberesp_ies = pos; 2901 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2902 pos += beacon->proberesp_ies_len; 2903 } 2904 if (beacon->assocresp_ies_len) { 2905 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2906 new_beacon->assocresp_ies = pos; 2907 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2908 pos += beacon->assocresp_ies_len; 2909 } 2910 if (beacon->probe_resp_len) { 2911 new_beacon->probe_resp_len = beacon->probe_resp_len; 2912 new_beacon->probe_resp = pos; 2913 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2914 pos += beacon->probe_resp_len; 2915 } 2916 2917 return new_beacon; 2918 } 2919 2920 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2921 { 2922 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2923 2924 ieee80211_queue_work(&sdata->local->hw, 2925 &sdata->csa_finalize_work); 2926 } 2927 EXPORT_SYMBOL(ieee80211_csa_finish); 2928 2929 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2930 u32 *changed) 2931 { 2932 int err; 2933 2934 switch (sdata->vif.type) { 2935 case NL80211_IFTYPE_AP: 2936 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2937 NULL); 2938 kfree(sdata->u.ap.next_beacon); 2939 sdata->u.ap.next_beacon = NULL; 2940 2941 if (err < 0) 2942 return err; 2943 *changed |= err; 2944 break; 2945 case NL80211_IFTYPE_ADHOC: 2946 err = ieee80211_ibss_finish_csa(sdata); 2947 if (err < 0) 2948 return err; 2949 *changed |= err; 2950 break; 2951 #ifdef CONFIG_MAC80211_MESH 2952 case NL80211_IFTYPE_MESH_POINT: 2953 err = ieee80211_mesh_finish_csa(sdata); 2954 if (err < 0) 2955 return err; 2956 *changed |= err; 2957 break; 2958 #endif 2959 default: 2960 WARN_ON(1); 2961 return -EINVAL; 2962 } 2963 2964 return 0; 2965 } 2966 2967 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 2968 { 2969 struct ieee80211_local *local = sdata->local; 2970 u32 changed = 0; 2971 int err; 2972 2973 sdata_assert_lock(sdata); 2974 lockdep_assert_held(&local->mtx); 2975 lockdep_assert_held(&local->chanctx_mtx); 2976 2977 /* 2978 * using reservation isn't immediate as it may be deferred until later 2979 * with multi-vif. once reservation is complete it will re-schedule the 2980 * work with no reserved_chanctx so verify chandef to check if it 2981 * completed successfully 2982 */ 2983 2984 if (sdata->reserved_chanctx) { 2985 /* 2986 * with multi-vif csa driver may call ieee80211_csa_finish() 2987 * many times while waiting for other interfaces to use their 2988 * reservations 2989 */ 2990 if (sdata->reserved_ready) 2991 return 0; 2992 2993 return ieee80211_vif_use_reserved_context(sdata); 2994 } 2995 2996 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 2997 &sdata->csa_chandef)) 2998 return -EINVAL; 2999 3000 sdata->vif.csa_active = false; 3001 3002 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3003 if (err) 3004 return err; 3005 3006 ieee80211_bss_info_change_notify(sdata, changed); 3007 3008 if (sdata->csa_block_tx) { 3009 ieee80211_wake_vif_queues(local, sdata, 3010 IEEE80211_QUEUE_STOP_REASON_CSA); 3011 sdata->csa_block_tx = false; 3012 } 3013 3014 err = drv_post_channel_switch(sdata); 3015 if (err) 3016 return err; 3017 3018 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3019 3020 return 0; 3021 } 3022 3023 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3024 { 3025 if (__ieee80211_csa_finalize(sdata)) { 3026 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3027 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3028 GFP_KERNEL); 3029 } 3030 } 3031 3032 void ieee80211_csa_finalize_work(struct work_struct *work) 3033 { 3034 struct ieee80211_sub_if_data *sdata = 3035 container_of(work, struct ieee80211_sub_if_data, 3036 csa_finalize_work); 3037 struct ieee80211_local *local = sdata->local; 3038 3039 sdata_lock(sdata); 3040 mutex_lock(&local->mtx); 3041 mutex_lock(&local->chanctx_mtx); 3042 3043 /* AP might have been stopped while waiting for the lock. */ 3044 if (!sdata->vif.csa_active) 3045 goto unlock; 3046 3047 if (!ieee80211_sdata_running(sdata)) 3048 goto unlock; 3049 3050 ieee80211_csa_finalize(sdata); 3051 3052 unlock: 3053 mutex_unlock(&local->chanctx_mtx); 3054 mutex_unlock(&local->mtx); 3055 sdata_unlock(sdata); 3056 } 3057 3058 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3059 struct cfg80211_csa_settings *params, 3060 u32 *changed) 3061 { 3062 struct ieee80211_csa_settings csa = {}; 3063 int err; 3064 3065 switch (sdata->vif.type) { 3066 case NL80211_IFTYPE_AP: 3067 sdata->u.ap.next_beacon = 3068 cfg80211_beacon_dup(¶ms->beacon_after); 3069 if (!sdata->u.ap.next_beacon) 3070 return -ENOMEM; 3071 3072 /* 3073 * With a count of 0, we don't have to wait for any 3074 * TBTT before switching, so complete the CSA 3075 * immediately. In theory, with a count == 1 we 3076 * should delay the switch until just before the next 3077 * TBTT, but that would complicate things so we switch 3078 * immediately too. If we would delay the switch 3079 * until the next TBTT, we would have to set the probe 3080 * response here. 3081 * 3082 * TODO: A channel switch with count <= 1 without 3083 * sending a CSA action frame is kind of useless, 3084 * because the clients won't know we're changing 3085 * channels. The action frame must be implemented 3086 * either here or in the userspace. 3087 */ 3088 if (params->count <= 1) 3089 break; 3090 3091 if ((params->n_counter_offsets_beacon > 3092 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3093 (params->n_counter_offsets_presp > 3094 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3095 return -EINVAL; 3096 3097 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3098 csa.counter_offsets_presp = params->counter_offsets_presp; 3099 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3100 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3101 csa.count = params->count; 3102 3103 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3104 if (err < 0) { 3105 kfree(sdata->u.ap.next_beacon); 3106 return err; 3107 } 3108 *changed |= err; 3109 3110 break; 3111 case NL80211_IFTYPE_ADHOC: 3112 if (!sdata->vif.bss_conf.ibss_joined) 3113 return -EINVAL; 3114 3115 if (params->chandef.width != sdata->u.ibss.chandef.width) 3116 return -EINVAL; 3117 3118 switch (params->chandef.width) { 3119 case NL80211_CHAN_WIDTH_40: 3120 if (cfg80211_get_chandef_type(¶ms->chandef) != 3121 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3122 return -EINVAL; 3123 case NL80211_CHAN_WIDTH_5: 3124 case NL80211_CHAN_WIDTH_10: 3125 case NL80211_CHAN_WIDTH_20_NOHT: 3126 case NL80211_CHAN_WIDTH_20: 3127 break; 3128 default: 3129 return -EINVAL; 3130 } 3131 3132 /* changes into another band are not supported */ 3133 if (sdata->u.ibss.chandef.chan->band != 3134 params->chandef.chan->band) 3135 return -EINVAL; 3136 3137 /* see comments in the NL80211_IFTYPE_AP block */ 3138 if (params->count > 1) { 3139 err = ieee80211_ibss_csa_beacon(sdata, params); 3140 if (err < 0) 3141 return err; 3142 *changed |= err; 3143 } 3144 3145 ieee80211_send_action_csa(sdata, params); 3146 3147 break; 3148 #ifdef CONFIG_MAC80211_MESH 3149 case NL80211_IFTYPE_MESH_POINT: { 3150 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3151 3152 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3153 return -EINVAL; 3154 3155 /* changes into another band are not supported */ 3156 if (sdata->vif.bss_conf.chandef.chan->band != 3157 params->chandef.chan->band) 3158 return -EINVAL; 3159 3160 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3161 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3162 if (!ifmsh->pre_value) 3163 ifmsh->pre_value = 1; 3164 else 3165 ifmsh->pre_value++; 3166 } 3167 3168 /* see comments in the NL80211_IFTYPE_AP block */ 3169 if (params->count > 1) { 3170 err = ieee80211_mesh_csa_beacon(sdata, params); 3171 if (err < 0) { 3172 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3173 return err; 3174 } 3175 *changed |= err; 3176 } 3177 3178 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3179 ieee80211_send_action_csa(sdata, params); 3180 3181 break; 3182 } 3183 #endif 3184 default: 3185 return -EOPNOTSUPP; 3186 } 3187 3188 return 0; 3189 } 3190 3191 static int 3192 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3193 struct cfg80211_csa_settings *params) 3194 { 3195 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3196 struct ieee80211_local *local = sdata->local; 3197 struct ieee80211_channel_switch ch_switch; 3198 struct ieee80211_chanctx_conf *conf; 3199 struct ieee80211_chanctx *chanctx; 3200 u32 changed = 0; 3201 int err; 3202 3203 sdata_assert_lock(sdata); 3204 lockdep_assert_held(&local->mtx); 3205 3206 if (!list_empty(&local->roc_list) || local->scanning) 3207 return -EBUSY; 3208 3209 if (sdata->wdev.cac_started) 3210 return -EBUSY; 3211 3212 if (cfg80211_chandef_identical(¶ms->chandef, 3213 &sdata->vif.bss_conf.chandef)) 3214 return -EINVAL; 3215 3216 /* don't allow another channel switch if one is already active. */ 3217 if (sdata->vif.csa_active) 3218 return -EBUSY; 3219 3220 mutex_lock(&local->chanctx_mtx); 3221 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3222 lockdep_is_held(&local->chanctx_mtx)); 3223 if (!conf) { 3224 err = -EBUSY; 3225 goto out; 3226 } 3227 3228 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3229 3230 ch_switch.timestamp = 0; 3231 ch_switch.device_timestamp = 0; 3232 ch_switch.block_tx = params->block_tx; 3233 ch_switch.chandef = params->chandef; 3234 ch_switch.count = params->count; 3235 3236 err = drv_pre_channel_switch(sdata, &ch_switch); 3237 if (err) 3238 goto out; 3239 3240 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3241 chanctx->mode, 3242 params->radar_required); 3243 if (err) 3244 goto out; 3245 3246 /* if reservation is invalid then this will fail */ 3247 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3248 if (err) { 3249 ieee80211_vif_unreserve_chanctx(sdata); 3250 goto out; 3251 } 3252 3253 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3254 if (err) { 3255 ieee80211_vif_unreserve_chanctx(sdata); 3256 goto out; 3257 } 3258 3259 sdata->csa_chandef = params->chandef; 3260 sdata->csa_block_tx = params->block_tx; 3261 sdata->vif.csa_active = true; 3262 3263 if (sdata->csa_block_tx) 3264 ieee80211_stop_vif_queues(local, sdata, 3265 IEEE80211_QUEUE_STOP_REASON_CSA); 3266 3267 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3268 params->count); 3269 3270 if (changed) { 3271 ieee80211_bss_info_change_notify(sdata, changed); 3272 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3273 } else { 3274 /* if the beacon didn't change, we can finalize immediately */ 3275 ieee80211_csa_finalize(sdata); 3276 } 3277 3278 out: 3279 mutex_unlock(&local->chanctx_mtx); 3280 return err; 3281 } 3282 3283 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3284 struct cfg80211_csa_settings *params) 3285 { 3286 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3287 struct ieee80211_local *local = sdata->local; 3288 int err; 3289 3290 mutex_lock(&local->mtx); 3291 err = __ieee80211_channel_switch(wiphy, dev, params); 3292 mutex_unlock(&local->mtx); 3293 3294 return err; 3295 } 3296 3297 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3298 { 3299 lockdep_assert_held(&local->mtx); 3300 3301 local->roc_cookie_counter++; 3302 3303 /* wow, you wrapped 64 bits ... more likely a bug */ 3304 if (WARN_ON(local->roc_cookie_counter == 0)) 3305 local->roc_cookie_counter++; 3306 3307 return local->roc_cookie_counter; 3308 } 3309 3310 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3311 u64 *cookie, gfp_t gfp) 3312 { 3313 unsigned long spin_flags; 3314 struct sk_buff *ack_skb; 3315 int id; 3316 3317 ack_skb = skb_copy(skb, gfp); 3318 if (!ack_skb) 3319 return -ENOMEM; 3320 3321 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3322 id = idr_alloc(&local->ack_status_frames, ack_skb, 3323 1, 0x10000, GFP_ATOMIC); 3324 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3325 3326 if (id < 0) { 3327 kfree_skb(ack_skb); 3328 return -ENOMEM; 3329 } 3330 3331 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3332 3333 *cookie = ieee80211_mgmt_tx_cookie(local); 3334 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3335 3336 return 0; 3337 } 3338 3339 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3340 struct wireless_dev *wdev, 3341 u16 frame_type, bool reg) 3342 { 3343 struct ieee80211_local *local = wiphy_priv(wiphy); 3344 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3345 3346 switch (frame_type) { 3347 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3348 if (reg) { 3349 local->probe_req_reg++; 3350 sdata->vif.probe_req_reg++; 3351 } else { 3352 if (local->probe_req_reg) 3353 local->probe_req_reg--; 3354 3355 if (sdata->vif.probe_req_reg) 3356 sdata->vif.probe_req_reg--; 3357 } 3358 3359 if (!local->open_count) 3360 break; 3361 3362 if (sdata->vif.probe_req_reg == 1) 3363 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3364 FIF_PROBE_REQ); 3365 else if (sdata->vif.probe_req_reg == 0) 3366 drv_config_iface_filter(local, sdata, 0, 3367 FIF_PROBE_REQ); 3368 3369 ieee80211_configure_filter(local); 3370 break; 3371 default: 3372 break; 3373 } 3374 } 3375 3376 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3377 { 3378 struct ieee80211_local *local = wiphy_priv(wiphy); 3379 3380 if (local->started) 3381 return -EOPNOTSUPP; 3382 3383 return drv_set_antenna(local, tx_ant, rx_ant); 3384 } 3385 3386 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3387 { 3388 struct ieee80211_local *local = wiphy_priv(wiphy); 3389 3390 return drv_get_antenna(local, tx_ant, rx_ant); 3391 } 3392 3393 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3394 struct net_device *dev, 3395 struct cfg80211_gtk_rekey_data *data) 3396 { 3397 struct ieee80211_local *local = wiphy_priv(wiphy); 3398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3399 3400 if (!local->ops->set_rekey_data) 3401 return -EOPNOTSUPP; 3402 3403 drv_set_rekey_data(local, sdata, data); 3404 3405 return 0; 3406 } 3407 3408 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3409 const u8 *peer, u64 *cookie) 3410 { 3411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3412 struct ieee80211_local *local = sdata->local; 3413 struct ieee80211_qos_hdr *nullfunc; 3414 struct sk_buff *skb; 3415 int size = sizeof(*nullfunc); 3416 __le16 fc; 3417 bool qos; 3418 struct ieee80211_tx_info *info; 3419 struct sta_info *sta; 3420 struct ieee80211_chanctx_conf *chanctx_conf; 3421 enum nl80211_band band; 3422 int ret; 3423 3424 /* the lock is needed to assign the cookie later */ 3425 mutex_lock(&local->mtx); 3426 3427 rcu_read_lock(); 3428 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3429 if (WARN_ON(!chanctx_conf)) { 3430 ret = -EINVAL; 3431 goto unlock; 3432 } 3433 band = chanctx_conf->def.chan->band; 3434 sta = sta_info_get_bss(sdata, peer); 3435 if (sta) { 3436 qos = sta->sta.wme; 3437 } else { 3438 ret = -ENOLINK; 3439 goto unlock; 3440 } 3441 3442 if (qos) { 3443 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3444 IEEE80211_STYPE_QOS_NULLFUNC | 3445 IEEE80211_FCTL_FROMDS); 3446 } else { 3447 size -= 2; 3448 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3449 IEEE80211_STYPE_NULLFUNC | 3450 IEEE80211_FCTL_FROMDS); 3451 } 3452 3453 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3454 if (!skb) { 3455 ret = -ENOMEM; 3456 goto unlock; 3457 } 3458 3459 skb->dev = dev; 3460 3461 skb_reserve(skb, local->hw.extra_tx_headroom); 3462 3463 nullfunc = skb_put(skb, size); 3464 nullfunc->frame_control = fc; 3465 nullfunc->duration_id = 0; 3466 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3467 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3468 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3469 nullfunc->seq_ctrl = 0; 3470 3471 info = IEEE80211_SKB_CB(skb); 3472 3473 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3474 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3475 info->band = band; 3476 3477 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3478 skb->priority = 7; 3479 if (qos) 3480 nullfunc->qos_ctrl = cpu_to_le16(7); 3481 3482 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3483 if (ret) { 3484 kfree_skb(skb); 3485 goto unlock; 3486 } 3487 3488 local_bh_disable(); 3489 ieee80211_xmit(sdata, sta, skb); 3490 local_bh_enable(); 3491 3492 ret = 0; 3493 unlock: 3494 rcu_read_unlock(); 3495 mutex_unlock(&local->mtx); 3496 3497 return ret; 3498 } 3499 3500 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3501 struct wireless_dev *wdev, 3502 struct cfg80211_chan_def *chandef) 3503 { 3504 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3505 struct ieee80211_local *local = wiphy_priv(wiphy); 3506 struct ieee80211_chanctx_conf *chanctx_conf; 3507 int ret = -ENODATA; 3508 3509 rcu_read_lock(); 3510 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3511 if (chanctx_conf) { 3512 *chandef = sdata->vif.bss_conf.chandef; 3513 ret = 0; 3514 } else if (local->open_count > 0 && 3515 local->open_count == local->monitors && 3516 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3517 if (local->use_chanctx) 3518 *chandef = local->monitor_chandef; 3519 else 3520 *chandef = local->_oper_chandef; 3521 ret = 0; 3522 } 3523 rcu_read_unlock(); 3524 3525 return ret; 3526 } 3527 3528 #ifdef CONFIG_PM 3529 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3530 { 3531 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3532 } 3533 #endif 3534 3535 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3536 struct net_device *dev, 3537 struct cfg80211_qos_map *qos_map) 3538 { 3539 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3540 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3541 3542 if (qos_map) { 3543 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3544 if (!new_qos_map) 3545 return -ENOMEM; 3546 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3547 } else { 3548 /* A NULL qos_map was passed to disable QoS mapping */ 3549 new_qos_map = NULL; 3550 } 3551 3552 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3553 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3554 if (old_qos_map) 3555 kfree_rcu(old_qos_map, rcu_head); 3556 3557 return 0; 3558 } 3559 3560 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3561 struct net_device *dev, 3562 struct cfg80211_chan_def *chandef) 3563 { 3564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3565 int ret; 3566 u32 changed = 0; 3567 3568 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3569 if (ret == 0) 3570 ieee80211_bss_info_change_notify(sdata, changed); 3571 3572 return ret; 3573 } 3574 3575 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3576 u8 tsid, const u8 *peer, u8 up, 3577 u16 admitted_time) 3578 { 3579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3580 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3581 int ac = ieee802_1d_to_ac[up]; 3582 3583 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3584 return -EOPNOTSUPP; 3585 3586 if (!(sdata->wmm_acm & BIT(up))) 3587 return -EINVAL; 3588 3589 if (ifmgd->tx_tspec[ac].admitted_time) 3590 return -EBUSY; 3591 3592 if (admitted_time) { 3593 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3594 ifmgd->tx_tspec[ac].tsid = tsid; 3595 ifmgd->tx_tspec[ac].up = up; 3596 } 3597 3598 return 0; 3599 } 3600 3601 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3602 u8 tsid, const u8 *peer) 3603 { 3604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3605 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3606 struct ieee80211_local *local = wiphy_priv(wiphy); 3607 int ac; 3608 3609 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3610 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3611 3612 /* skip unused entries */ 3613 if (!tx_tspec->admitted_time) 3614 continue; 3615 3616 if (tx_tspec->tsid != tsid) 3617 continue; 3618 3619 /* due to this new packets will be reassigned to non-ACM ACs */ 3620 tx_tspec->up = -1; 3621 3622 /* Make sure that all packets have been sent to avoid to 3623 * restore the QoS params on packets that are still on the 3624 * queues. 3625 */ 3626 synchronize_net(); 3627 ieee80211_flush_queues(local, sdata, false); 3628 3629 /* restore the normal QoS parameters 3630 * (unconditionally to avoid races) 3631 */ 3632 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3633 tx_tspec->downgraded = false; 3634 ieee80211_sta_handle_tspec_ac_params(sdata); 3635 3636 /* finally clear all the data */ 3637 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3638 3639 return 0; 3640 } 3641 3642 return -ENOENT; 3643 } 3644 3645 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3646 u8 inst_id, 3647 enum nl80211_nan_func_term_reason reason, 3648 gfp_t gfp) 3649 { 3650 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3651 struct cfg80211_nan_func *func; 3652 u64 cookie; 3653 3654 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3655 return; 3656 3657 spin_lock_bh(&sdata->u.nan.func_lock); 3658 3659 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3660 if (WARN_ON(!func)) { 3661 spin_unlock_bh(&sdata->u.nan.func_lock); 3662 return; 3663 } 3664 3665 cookie = func->cookie; 3666 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3667 3668 spin_unlock_bh(&sdata->u.nan.func_lock); 3669 3670 cfg80211_free_nan_func(func); 3671 3672 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3673 reason, cookie, gfp); 3674 } 3675 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3676 3677 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3678 struct cfg80211_nan_match_params *match, 3679 gfp_t gfp) 3680 { 3681 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3682 struct cfg80211_nan_func *func; 3683 3684 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3685 return; 3686 3687 spin_lock_bh(&sdata->u.nan.func_lock); 3688 3689 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3690 if (WARN_ON(!func)) { 3691 spin_unlock_bh(&sdata->u.nan.func_lock); 3692 return; 3693 } 3694 match->cookie = func->cookie; 3695 3696 spin_unlock_bh(&sdata->u.nan.func_lock); 3697 3698 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3699 } 3700 EXPORT_SYMBOL(ieee80211_nan_func_match); 3701 3702 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3703 struct net_device *dev, 3704 const bool enabled) 3705 { 3706 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3707 3708 sdata->u.ap.multicast_to_unicast = enabled; 3709 3710 return 0; 3711 } 3712 3713 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3714 struct txq_info *txqi) 3715 { 3716 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3717 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3718 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3719 } 3720 3721 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3722 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3723 txqstats->backlog_packets = txqi->tin.backlog_packets; 3724 } 3725 3726 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3727 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3728 txqstats->flows = txqi->tin.flows; 3729 } 3730 3731 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3732 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3733 txqstats->drops = txqi->cstats.drop_count; 3734 } 3735 3736 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3737 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3738 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3739 } 3740 3741 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3742 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3743 txqstats->overlimit = txqi->tin.overlimit; 3744 } 3745 3746 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3747 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3748 txqstats->collisions = txqi->tin.collisions; 3749 } 3750 3751 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3752 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3753 txqstats->tx_bytes = txqi->tin.tx_bytes; 3754 } 3755 3756 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3757 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3758 txqstats->tx_packets = txqi->tin.tx_packets; 3759 } 3760 } 3761 3762 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3763 struct wireless_dev *wdev, 3764 struct cfg80211_txq_stats *txqstats) 3765 { 3766 struct ieee80211_local *local = wiphy_priv(wiphy); 3767 struct ieee80211_sub_if_data *sdata; 3768 int ret = 0; 3769 3770 if (!local->ops->wake_tx_queue) 3771 return 1; 3772 3773 spin_lock_bh(&local->fq.lock); 3774 rcu_read_lock(); 3775 3776 if (wdev) { 3777 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3778 if (!sdata->vif.txq) { 3779 ret = 1; 3780 goto out; 3781 } 3782 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3783 } else { 3784 /* phy stats */ 3785 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3786 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3787 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3788 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3789 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3790 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3791 txqstats->backlog_packets = local->fq.backlog; 3792 txqstats->backlog_bytes = local->fq.memory_usage; 3793 txqstats->overlimit = local->fq.overlimit; 3794 txqstats->overmemory = local->fq.overmemory; 3795 txqstats->collisions = local->fq.collisions; 3796 txqstats->max_flows = local->fq.flows_cnt; 3797 } 3798 3799 out: 3800 rcu_read_unlock(); 3801 spin_unlock_bh(&local->fq.lock); 3802 3803 return ret; 3804 } 3805 3806 const struct cfg80211_ops mac80211_config_ops = { 3807 .add_virtual_intf = ieee80211_add_iface, 3808 .del_virtual_intf = ieee80211_del_iface, 3809 .change_virtual_intf = ieee80211_change_iface, 3810 .start_p2p_device = ieee80211_start_p2p_device, 3811 .stop_p2p_device = ieee80211_stop_p2p_device, 3812 .add_key = ieee80211_add_key, 3813 .del_key = ieee80211_del_key, 3814 .get_key = ieee80211_get_key, 3815 .set_default_key = ieee80211_config_default_key, 3816 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3817 .start_ap = ieee80211_start_ap, 3818 .change_beacon = ieee80211_change_beacon, 3819 .stop_ap = ieee80211_stop_ap, 3820 .add_station = ieee80211_add_station, 3821 .del_station = ieee80211_del_station, 3822 .change_station = ieee80211_change_station, 3823 .get_station = ieee80211_get_station, 3824 .dump_station = ieee80211_dump_station, 3825 .dump_survey = ieee80211_dump_survey, 3826 #ifdef CONFIG_MAC80211_MESH 3827 .add_mpath = ieee80211_add_mpath, 3828 .del_mpath = ieee80211_del_mpath, 3829 .change_mpath = ieee80211_change_mpath, 3830 .get_mpath = ieee80211_get_mpath, 3831 .dump_mpath = ieee80211_dump_mpath, 3832 .get_mpp = ieee80211_get_mpp, 3833 .dump_mpp = ieee80211_dump_mpp, 3834 .update_mesh_config = ieee80211_update_mesh_config, 3835 .get_mesh_config = ieee80211_get_mesh_config, 3836 .join_mesh = ieee80211_join_mesh, 3837 .leave_mesh = ieee80211_leave_mesh, 3838 #endif 3839 .join_ocb = ieee80211_join_ocb, 3840 .leave_ocb = ieee80211_leave_ocb, 3841 .change_bss = ieee80211_change_bss, 3842 .set_txq_params = ieee80211_set_txq_params, 3843 .set_monitor_channel = ieee80211_set_monitor_channel, 3844 .suspend = ieee80211_suspend, 3845 .resume = ieee80211_resume, 3846 .scan = ieee80211_scan, 3847 .abort_scan = ieee80211_abort_scan, 3848 .sched_scan_start = ieee80211_sched_scan_start, 3849 .sched_scan_stop = ieee80211_sched_scan_stop, 3850 .auth = ieee80211_auth, 3851 .assoc = ieee80211_assoc, 3852 .deauth = ieee80211_deauth, 3853 .disassoc = ieee80211_disassoc, 3854 .join_ibss = ieee80211_join_ibss, 3855 .leave_ibss = ieee80211_leave_ibss, 3856 .set_mcast_rate = ieee80211_set_mcast_rate, 3857 .set_wiphy_params = ieee80211_set_wiphy_params, 3858 .set_tx_power = ieee80211_set_tx_power, 3859 .get_tx_power = ieee80211_get_tx_power, 3860 .set_wds_peer = ieee80211_set_wds_peer, 3861 .rfkill_poll = ieee80211_rfkill_poll, 3862 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3863 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3864 .set_power_mgmt = ieee80211_set_power_mgmt, 3865 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3866 .remain_on_channel = ieee80211_remain_on_channel, 3867 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3868 .mgmt_tx = ieee80211_mgmt_tx, 3869 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3870 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3871 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3872 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3873 .set_antenna = ieee80211_set_antenna, 3874 .get_antenna = ieee80211_get_antenna, 3875 .set_rekey_data = ieee80211_set_rekey_data, 3876 .tdls_oper = ieee80211_tdls_oper, 3877 .tdls_mgmt = ieee80211_tdls_mgmt, 3878 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3879 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3880 .probe_client = ieee80211_probe_client, 3881 .set_noack_map = ieee80211_set_noack_map, 3882 #ifdef CONFIG_PM 3883 .set_wakeup = ieee80211_set_wakeup, 3884 #endif 3885 .get_channel = ieee80211_cfg_get_channel, 3886 .start_radar_detection = ieee80211_start_radar_detection, 3887 .channel_switch = ieee80211_channel_switch, 3888 .set_qos_map = ieee80211_set_qos_map, 3889 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3890 .add_tx_ts = ieee80211_add_tx_ts, 3891 .del_tx_ts = ieee80211_del_tx_ts, 3892 .start_nan = ieee80211_start_nan, 3893 .stop_nan = ieee80211_stop_nan, 3894 .nan_change_conf = ieee80211_nan_change_conf, 3895 .add_nan_func = ieee80211_add_nan_func, 3896 .del_nan_func = ieee80211_del_nan_func, 3897 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3898 .tx_control_port = ieee80211_tx_control_port, 3899 .get_txq_stats = ieee80211_get_txq_stats, 3900 }; 3901