1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2015 Intel Mobile Communications GmbH 6 * Copyright (C) 2015-2017 Intel Deutschland GmbH 7 * Copyright (C) 2018 Intel Corporation 8 * 9 * This file is GPLv2 as found in COPYING. 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 355 u8 key_idx, bool pairwise, const u8 *mac_addr, 356 struct key_params *params) 357 { 358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 359 struct ieee80211_local *local = sdata->local; 360 struct sta_info *sta = NULL; 361 const struct ieee80211_cipher_scheme *cs = NULL; 362 struct ieee80211_key *key; 363 int err; 364 365 if (!ieee80211_sdata_running(sdata)) 366 return -ENETDOWN; 367 368 /* reject WEP and TKIP keys if WEP failed to initialize */ 369 switch (params->cipher) { 370 case WLAN_CIPHER_SUITE_WEP40: 371 case WLAN_CIPHER_SUITE_TKIP: 372 case WLAN_CIPHER_SUITE_WEP104: 373 if (IS_ERR(local->wep_tx_tfm)) 374 return -EINVAL; 375 break; 376 case WLAN_CIPHER_SUITE_CCMP: 377 case WLAN_CIPHER_SUITE_CCMP_256: 378 case WLAN_CIPHER_SUITE_AES_CMAC: 379 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 380 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 381 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 382 case WLAN_CIPHER_SUITE_GCMP: 383 case WLAN_CIPHER_SUITE_GCMP_256: 384 break; 385 default: 386 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 387 break; 388 } 389 390 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 391 params->key, params->seq_len, params->seq, 392 cs); 393 if (IS_ERR(key)) 394 return PTR_ERR(key); 395 396 if (pairwise) 397 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 398 399 mutex_lock(&local->sta_mtx); 400 401 if (mac_addr) { 402 sta = sta_info_get_bss(sdata, mac_addr); 403 /* 404 * The ASSOC test makes sure the driver is ready to 405 * receive the key. When wpa_supplicant has roamed 406 * using FT, it attempts to set the key before 407 * association has completed, this rejects that attempt 408 * so it will set the key again after association. 409 * 410 * TODO: accept the key if we have a station entry and 411 * add it to the device after the station. 412 */ 413 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 414 ieee80211_key_free_unused(key); 415 err = -ENOENT; 416 goto out_unlock; 417 } 418 } 419 420 switch (sdata->vif.type) { 421 case NL80211_IFTYPE_STATION: 422 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 423 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 424 break; 425 case NL80211_IFTYPE_AP: 426 case NL80211_IFTYPE_AP_VLAN: 427 /* Keys without a station are used for TX only */ 428 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 429 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 430 break; 431 case NL80211_IFTYPE_ADHOC: 432 /* no MFP (yet) */ 433 break; 434 case NL80211_IFTYPE_MESH_POINT: 435 #ifdef CONFIG_MAC80211_MESH 436 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 437 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 438 break; 439 #endif 440 case NL80211_IFTYPE_WDS: 441 case NL80211_IFTYPE_MONITOR: 442 case NL80211_IFTYPE_P2P_DEVICE: 443 case NL80211_IFTYPE_NAN: 444 case NL80211_IFTYPE_UNSPECIFIED: 445 case NUM_NL80211_IFTYPES: 446 case NL80211_IFTYPE_P2P_CLIENT: 447 case NL80211_IFTYPE_P2P_GO: 448 case NL80211_IFTYPE_OCB: 449 /* shouldn't happen */ 450 WARN_ON_ONCE(1); 451 break; 452 } 453 454 if (sta) 455 sta->cipher_scheme = cs; 456 457 err = ieee80211_key_link(key, sdata, sta); 458 459 out_unlock: 460 mutex_unlock(&local->sta_mtx); 461 462 return err; 463 } 464 465 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 466 u8 key_idx, bool pairwise, const u8 *mac_addr) 467 { 468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 469 struct ieee80211_local *local = sdata->local; 470 struct sta_info *sta; 471 struct ieee80211_key *key = NULL; 472 int ret; 473 474 mutex_lock(&local->sta_mtx); 475 mutex_lock(&local->key_mtx); 476 477 if (mac_addr) { 478 ret = -ENOENT; 479 480 sta = sta_info_get_bss(sdata, mac_addr); 481 if (!sta) 482 goto out_unlock; 483 484 if (pairwise) 485 key = key_mtx_dereference(local, sta->ptk[key_idx]); 486 else 487 key = key_mtx_dereference(local, sta->gtk[key_idx]); 488 } else 489 key = key_mtx_dereference(local, sdata->keys[key_idx]); 490 491 if (!key) { 492 ret = -ENOENT; 493 goto out_unlock; 494 } 495 496 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 497 498 ret = 0; 499 out_unlock: 500 mutex_unlock(&local->key_mtx); 501 mutex_unlock(&local->sta_mtx); 502 503 return ret; 504 } 505 506 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 507 u8 key_idx, bool pairwise, const u8 *mac_addr, 508 void *cookie, 509 void (*callback)(void *cookie, 510 struct key_params *params)) 511 { 512 struct ieee80211_sub_if_data *sdata; 513 struct sta_info *sta = NULL; 514 u8 seq[6] = {0}; 515 struct key_params params; 516 struct ieee80211_key *key = NULL; 517 u64 pn64; 518 u32 iv32; 519 u16 iv16; 520 int err = -ENOENT; 521 struct ieee80211_key_seq kseq = {}; 522 523 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 524 525 rcu_read_lock(); 526 527 if (mac_addr) { 528 sta = sta_info_get_bss(sdata, mac_addr); 529 if (!sta) 530 goto out; 531 532 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 533 key = rcu_dereference(sta->ptk[key_idx]); 534 else if (!pairwise && 535 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 536 key = rcu_dereference(sta->gtk[key_idx]); 537 } else 538 key = rcu_dereference(sdata->keys[key_idx]); 539 540 if (!key) 541 goto out; 542 543 memset(¶ms, 0, sizeof(params)); 544 545 params.cipher = key->conf.cipher; 546 547 switch (key->conf.cipher) { 548 case WLAN_CIPHER_SUITE_TKIP: 549 pn64 = atomic64_read(&key->conf.tx_pn); 550 iv32 = TKIP_PN_TO_IV32(pn64); 551 iv16 = TKIP_PN_TO_IV16(pn64); 552 553 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 554 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 555 drv_get_key_seq(sdata->local, key, &kseq); 556 iv32 = kseq.tkip.iv32; 557 iv16 = kseq.tkip.iv16; 558 } 559 560 seq[0] = iv16 & 0xff; 561 seq[1] = (iv16 >> 8) & 0xff; 562 seq[2] = iv32 & 0xff; 563 seq[3] = (iv32 >> 8) & 0xff; 564 seq[4] = (iv32 >> 16) & 0xff; 565 seq[5] = (iv32 >> 24) & 0xff; 566 params.seq = seq; 567 params.seq_len = 6; 568 break; 569 case WLAN_CIPHER_SUITE_CCMP: 570 case WLAN_CIPHER_SUITE_CCMP_256: 571 case WLAN_CIPHER_SUITE_AES_CMAC: 572 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 573 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 574 offsetof(typeof(kseq), aes_cmac)); 575 /* fall through */ 576 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 577 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 579 offsetof(typeof(kseq), aes_gmac)); 580 /* fall through */ 581 case WLAN_CIPHER_SUITE_GCMP: 582 case WLAN_CIPHER_SUITE_GCMP_256: 583 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 584 offsetof(typeof(kseq), gcmp)); 585 586 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 587 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 588 drv_get_key_seq(sdata->local, key, &kseq); 589 memcpy(seq, kseq.ccmp.pn, 6); 590 } else { 591 pn64 = atomic64_read(&key->conf.tx_pn); 592 seq[0] = pn64; 593 seq[1] = pn64 >> 8; 594 seq[2] = pn64 >> 16; 595 seq[3] = pn64 >> 24; 596 seq[4] = pn64 >> 32; 597 seq[5] = pn64 >> 40; 598 } 599 params.seq = seq; 600 params.seq_len = 6; 601 break; 602 default: 603 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 604 break; 605 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 606 break; 607 drv_get_key_seq(sdata->local, key, &kseq); 608 params.seq = kseq.hw.seq; 609 params.seq_len = kseq.hw.seq_len; 610 break; 611 } 612 613 params.key = key->conf.key; 614 params.key_len = key->conf.keylen; 615 616 callback(cookie, ¶ms); 617 err = 0; 618 619 out: 620 rcu_read_unlock(); 621 return err; 622 } 623 624 static int ieee80211_config_default_key(struct wiphy *wiphy, 625 struct net_device *dev, 626 u8 key_idx, bool uni, 627 bool multi) 628 { 629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 630 631 ieee80211_set_default_key(sdata, key_idx, uni, multi); 632 633 return 0; 634 } 635 636 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 637 struct net_device *dev, 638 u8 key_idx) 639 { 640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 641 642 ieee80211_set_default_mgmt_key(sdata, key_idx); 643 644 return 0; 645 } 646 647 void sta_set_rate_info_tx(struct sta_info *sta, 648 const struct ieee80211_tx_rate *rate, 649 struct rate_info *rinfo) 650 { 651 rinfo->flags = 0; 652 if (rate->flags & IEEE80211_TX_RC_MCS) { 653 rinfo->flags |= RATE_INFO_FLAGS_MCS; 654 rinfo->mcs = rate->idx; 655 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 656 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 657 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 658 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 659 } else { 660 struct ieee80211_supported_band *sband; 661 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 662 u16 brate; 663 664 sband = ieee80211_get_sband(sta->sdata); 665 if (sband) { 666 brate = sband->bitrates[rate->idx].bitrate; 667 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 668 } 669 } 670 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 671 rinfo->bw = RATE_INFO_BW_40; 672 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 673 rinfo->bw = RATE_INFO_BW_80; 674 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 675 rinfo->bw = RATE_INFO_BW_160; 676 else 677 rinfo->bw = RATE_INFO_BW_20; 678 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 679 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 680 } 681 682 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 683 int idx, u8 *mac, struct station_info *sinfo) 684 { 685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 686 struct ieee80211_local *local = sdata->local; 687 struct sta_info *sta; 688 int ret = -ENOENT; 689 690 mutex_lock(&local->sta_mtx); 691 692 sta = sta_info_get_by_idx(sdata, idx); 693 if (sta) { 694 ret = 0; 695 memcpy(mac, sta->sta.addr, ETH_ALEN); 696 sta_set_sinfo(sta, sinfo, true); 697 } 698 699 mutex_unlock(&local->sta_mtx); 700 701 return ret; 702 } 703 704 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 705 int idx, struct survey_info *survey) 706 { 707 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 708 709 return drv_get_survey(local, idx, survey); 710 } 711 712 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 713 const u8 *mac, struct station_info *sinfo) 714 { 715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 716 struct ieee80211_local *local = sdata->local; 717 struct sta_info *sta; 718 int ret = -ENOENT; 719 720 mutex_lock(&local->sta_mtx); 721 722 sta = sta_info_get_bss(sdata, mac); 723 if (sta) { 724 ret = 0; 725 sta_set_sinfo(sta, sinfo, true); 726 } 727 728 mutex_unlock(&local->sta_mtx); 729 730 return ret; 731 } 732 733 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 734 struct cfg80211_chan_def *chandef) 735 { 736 struct ieee80211_local *local = wiphy_priv(wiphy); 737 struct ieee80211_sub_if_data *sdata; 738 int ret = 0; 739 740 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 741 return 0; 742 743 mutex_lock(&local->mtx); 744 if (local->use_chanctx) { 745 sdata = rtnl_dereference(local->monitor_sdata); 746 if (sdata) { 747 ieee80211_vif_release_channel(sdata); 748 ret = ieee80211_vif_use_channel(sdata, chandef, 749 IEEE80211_CHANCTX_EXCLUSIVE); 750 } 751 } else if (local->open_count == local->monitors) { 752 local->_oper_chandef = *chandef; 753 ieee80211_hw_config(local, 0); 754 } 755 756 if (ret == 0) 757 local->monitor_chandef = *chandef; 758 mutex_unlock(&local->mtx); 759 760 return ret; 761 } 762 763 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 764 const u8 *resp, size_t resp_len, 765 const struct ieee80211_csa_settings *csa) 766 { 767 struct probe_resp *new, *old; 768 769 if (!resp || !resp_len) 770 return 1; 771 772 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 773 774 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 775 if (!new) 776 return -ENOMEM; 777 778 new->len = resp_len; 779 memcpy(new->data, resp, resp_len); 780 781 if (csa) 782 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 783 csa->n_counter_offsets_presp * 784 sizeof(new->csa_counter_offsets[0])); 785 786 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 787 if (old) 788 kfree_rcu(old, rcu_head); 789 790 return 0; 791 } 792 793 static int ieee80211_set_ftm_responder_params( 794 struct ieee80211_sub_if_data *sdata, 795 const u8 *lci, size_t lci_len, 796 const u8 *civicloc, size_t civicloc_len) 797 { 798 struct ieee80211_ftm_responder_params *new, *old; 799 struct ieee80211_bss_conf *bss_conf; 800 u8 *pos; 801 int len; 802 803 if (!lci_len && !civicloc_len) 804 return 0; 805 806 bss_conf = &sdata->vif.bss_conf; 807 old = bss_conf->ftmr_params; 808 len = lci_len + civicloc_len; 809 810 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 pos = (u8 *)(new + 1); 815 if (lci_len) { 816 new->lci_len = lci_len; 817 new->lci = pos; 818 memcpy(pos, lci, lci_len); 819 pos += lci_len; 820 } 821 822 if (civicloc_len) { 823 new->civicloc_len = civicloc_len; 824 new->civicloc = pos; 825 memcpy(pos, civicloc, civicloc_len); 826 pos += civicloc_len; 827 } 828 829 bss_conf->ftmr_params = new; 830 kfree(old); 831 832 return 0; 833 } 834 835 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 836 struct cfg80211_beacon_data *params, 837 const struct ieee80211_csa_settings *csa) 838 { 839 struct beacon_data *new, *old; 840 int new_head_len, new_tail_len; 841 int size, err; 842 u32 changed = BSS_CHANGED_BEACON; 843 844 old = sdata_dereference(sdata->u.ap.beacon, sdata); 845 846 847 /* Need to have a beacon head if we don't have one yet */ 848 if (!params->head && !old) 849 return -EINVAL; 850 851 /* new or old head? */ 852 if (params->head) 853 new_head_len = params->head_len; 854 else 855 new_head_len = old->head_len; 856 857 /* new or old tail? */ 858 if (params->tail || !old) 859 /* params->tail_len will be zero for !params->tail */ 860 new_tail_len = params->tail_len; 861 else 862 new_tail_len = old->tail_len; 863 864 size = sizeof(*new) + new_head_len + new_tail_len; 865 866 new = kzalloc(size, GFP_KERNEL); 867 if (!new) 868 return -ENOMEM; 869 870 /* start filling the new info now */ 871 872 /* 873 * pointers go into the block we allocated, 874 * memory is | beacon_data | head | tail | 875 */ 876 new->head = ((u8 *) new) + sizeof(*new); 877 new->tail = new->head + new_head_len; 878 new->head_len = new_head_len; 879 new->tail_len = new_tail_len; 880 881 if (csa) { 882 new->csa_current_counter = csa->count; 883 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 884 csa->n_counter_offsets_beacon * 885 sizeof(new->csa_counter_offsets[0])); 886 } 887 888 /* copy in head */ 889 if (params->head) 890 memcpy(new->head, params->head, new_head_len); 891 else 892 memcpy(new->head, old->head, new_head_len); 893 894 /* copy in optional tail */ 895 if (params->tail) 896 memcpy(new->tail, params->tail, new_tail_len); 897 else 898 if (old) 899 memcpy(new->tail, old->tail, new_tail_len); 900 901 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 902 params->probe_resp_len, csa); 903 if (err < 0) 904 return err; 905 if (err == 0) 906 changed |= BSS_CHANGED_AP_PROBE_RESP; 907 908 if (params->ftm_responder != -1) { 909 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 910 err = ieee80211_set_ftm_responder_params(sdata, 911 params->lci, 912 params->lci_len, 913 params->civicloc, 914 params->civicloc_len); 915 916 if (err < 0) 917 return err; 918 919 changed |= BSS_CHANGED_FTM_RESPONDER; 920 } 921 922 rcu_assign_pointer(sdata->u.ap.beacon, new); 923 924 if (old) 925 kfree_rcu(old, rcu_head); 926 927 return changed; 928 } 929 930 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 931 struct cfg80211_ap_settings *params) 932 { 933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 934 struct ieee80211_local *local = sdata->local; 935 struct beacon_data *old; 936 struct ieee80211_sub_if_data *vlan; 937 u32 changed = BSS_CHANGED_BEACON_INT | 938 BSS_CHANGED_BEACON_ENABLED | 939 BSS_CHANGED_BEACON | 940 BSS_CHANGED_SSID | 941 BSS_CHANGED_P2P_PS | 942 BSS_CHANGED_TXPOWER; 943 int err; 944 int prev_beacon_int; 945 946 old = sdata_dereference(sdata->u.ap.beacon, sdata); 947 if (old) 948 return -EALREADY; 949 950 switch (params->smps_mode) { 951 case NL80211_SMPS_OFF: 952 sdata->smps_mode = IEEE80211_SMPS_OFF; 953 break; 954 case NL80211_SMPS_STATIC: 955 sdata->smps_mode = IEEE80211_SMPS_STATIC; 956 break; 957 case NL80211_SMPS_DYNAMIC: 958 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 959 break; 960 default: 961 return -EINVAL; 962 } 963 sdata->u.ap.req_smps = sdata->smps_mode; 964 965 sdata->needed_rx_chains = sdata->local->rx_chains; 966 967 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 968 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 969 970 if (params->he_cap) 971 sdata->vif.bss_conf.he_support = true; 972 973 mutex_lock(&local->mtx); 974 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 975 IEEE80211_CHANCTX_SHARED); 976 if (!err) 977 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 978 mutex_unlock(&local->mtx); 979 if (err) { 980 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 981 return err; 982 } 983 984 /* 985 * Apply control port protocol, this allows us to 986 * not encrypt dynamic WEP control frames. 987 */ 988 sdata->control_port_protocol = params->crypto.control_port_ethertype; 989 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 990 sdata->control_port_over_nl80211 = 991 params->crypto.control_port_over_nl80211; 992 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 993 ¶ms->crypto, 994 sdata->vif.type); 995 996 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 997 vlan->control_port_protocol = 998 params->crypto.control_port_ethertype; 999 vlan->control_port_no_encrypt = 1000 params->crypto.control_port_no_encrypt; 1001 vlan->control_port_over_nl80211 = 1002 params->crypto.control_port_over_nl80211; 1003 vlan->encrypt_headroom = 1004 ieee80211_cs_headroom(sdata->local, 1005 ¶ms->crypto, 1006 vlan->vif.type); 1007 } 1008 1009 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1010 sdata->vif.bss_conf.enable_beacon = true; 1011 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1012 1013 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1014 if (params->ssid_len) 1015 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1016 params->ssid_len); 1017 sdata->vif.bss_conf.hidden_ssid = 1018 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1019 1020 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1021 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1022 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1023 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1024 if (params->p2p_opp_ps) 1025 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1026 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1027 1028 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1029 if (err < 0) { 1030 ieee80211_vif_release_channel(sdata); 1031 return err; 1032 } 1033 changed |= err; 1034 1035 err = drv_start_ap(sdata->local, sdata); 1036 if (err) { 1037 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1038 1039 if (old) 1040 kfree_rcu(old, rcu_head); 1041 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1042 ieee80211_vif_release_channel(sdata); 1043 return err; 1044 } 1045 1046 ieee80211_recalc_dtim(local, sdata); 1047 ieee80211_bss_info_change_notify(sdata, changed); 1048 1049 netif_carrier_on(dev); 1050 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1051 netif_carrier_on(vlan->dev); 1052 1053 return 0; 1054 } 1055 1056 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1057 struct cfg80211_beacon_data *params) 1058 { 1059 struct ieee80211_sub_if_data *sdata; 1060 struct beacon_data *old; 1061 int err; 1062 1063 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1064 sdata_assert_lock(sdata); 1065 1066 /* don't allow changing the beacon while CSA is in place - offset 1067 * of channel switch counter may change 1068 */ 1069 if (sdata->vif.csa_active) 1070 return -EBUSY; 1071 1072 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1073 if (!old) 1074 return -ENOENT; 1075 1076 err = ieee80211_assign_beacon(sdata, params, NULL); 1077 if (err < 0) 1078 return err; 1079 ieee80211_bss_info_change_notify(sdata, err); 1080 return 0; 1081 } 1082 1083 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1084 { 1085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1086 struct ieee80211_sub_if_data *vlan; 1087 struct ieee80211_local *local = sdata->local; 1088 struct beacon_data *old_beacon; 1089 struct probe_resp *old_probe_resp; 1090 struct cfg80211_chan_def chandef; 1091 1092 sdata_assert_lock(sdata); 1093 1094 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1095 if (!old_beacon) 1096 return -ENOENT; 1097 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1098 1099 /* abort any running channel switch */ 1100 mutex_lock(&local->mtx); 1101 sdata->vif.csa_active = false; 1102 if (sdata->csa_block_tx) { 1103 ieee80211_wake_vif_queues(local, sdata, 1104 IEEE80211_QUEUE_STOP_REASON_CSA); 1105 sdata->csa_block_tx = false; 1106 } 1107 1108 mutex_unlock(&local->mtx); 1109 1110 kfree(sdata->u.ap.next_beacon); 1111 sdata->u.ap.next_beacon = NULL; 1112 1113 /* turn off carrier for this interface and dependent VLANs */ 1114 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1115 netif_carrier_off(vlan->dev); 1116 netif_carrier_off(dev); 1117 1118 /* remove beacon and probe response */ 1119 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1120 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1121 kfree_rcu(old_beacon, rcu_head); 1122 if (old_probe_resp) 1123 kfree_rcu(old_probe_resp, rcu_head); 1124 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1125 1126 kfree(sdata->vif.bss_conf.ftmr_params); 1127 sdata->vif.bss_conf.ftmr_params = NULL; 1128 1129 __sta_info_flush(sdata, true); 1130 ieee80211_free_keys(sdata, true); 1131 1132 sdata->vif.bss_conf.enable_beacon = false; 1133 sdata->vif.bss_conf.ssid_len = 0; 1134 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1135 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1136 1137 if (sdata->wdev.cac_started) { 1138 chandef = sdata->vif.bss_conf.chandef; 1139 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1140 cfg80211_cac_event(sdata->dev, &chandef, 1141 NL80211_RADAR_CAC_ABORTED, 1142 GFP_KERNEL); 1143 } 1144 1145 drv_stop_ap(sdata->local, sdata); 1146 1147 /* free all potentially still buffered bcast frames */ 1148 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1149 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1150 1151 mutex_lock(&local->mtx); 1152 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1153 ieee80211_vif_release_channel(sdata); 1154 mutex_unlock(&local->mtx); 1155 1156 return 0; 1157 } 1158 1159 static int sta_apply_auth_flags(struct ieee80211_local *local, 1160 struct sta_info *sta, 1161 u32 mask, u32 set) 1162 { 1163 int ret; 1164 1165 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1166 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1167 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1168 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1169 if (ret) 1170 return ret; 1171 } 1172 1173 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1174 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1175 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1176 /* 1177 * When peer becomes associated, init rate control as 1178 * well. Some drivers require rate control initialized 1179 * before drv_sta_state() is called. 1180 */ 1181 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1182 rate_control_rate_init(sta); 1183 1184 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1185 if (ret) 1186 return ret; 1187 } 1188 1189 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1190 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1191 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1192 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1193 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1194 else 1195 ret = 0; 1196 if (ret) 1197 return ret; 1198 } 1199 1200 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1201 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1202 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1203 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1204 if (ret) 1205 return ret; 1206 } 1207 1208 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1209 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1210 test_sta_flag(sta, WLAN_STA_AUTH)) { 1211 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1212 if (ret) 1213 return ret; 1214 } 1215 1216 return 0; 1217 } 1218 1219 static void sta_apply_mesh_params(struct ieee80211_local *local, 1220 struct sta_info *sta, 1221 struct station_parameters *params) 1222 { 1223 #ifdef CONFIG_MAC80211_MESH 1224 struct ieee80211_sub_if_data *sdata = sta->sdata; 1225 u32 changed = 0; 1226 1227 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1228 switch (params->plink_state) { 1229 case NL80211_PLINK_ESTAB: 1230 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1231 changed = mesh_plink_inc_estab_count(sdata); 1232 sta->mesh->plink_state = params->plink_state; 1233 sta->mesh->aid = params->peer_aid; 1234 1235 ieee80211_mps_sta_status_update(sta); 1236 changed |= ieee80211_mps_set_sta_local_pm(sta, 1237 sdata->u.mesh.mshcfg.power_mode); 1238 break; 1239 case NL80211_PLINK_LISTEN: 1240 case NL80211_PLINK_BLOCKED: 1241 case NL80211_PLINK_OPN_SNT: 1242 case NL80211_PLINK_OPN_RCVD: 1243 case NL80211_PLINK_CNF_RCVD: 1244 case NL80211_PLINK_HOLDING: 1245 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1246 changed = mesh_plink_dec_estab_count(sdata); 1247 sta->mesh->plink_state = params->plink_state; 1248 1249 ieee80211_mps_sta_status_update(sta); 1250 changed |= ieee80211_mps_set_sta_local_pm(sta, 1251 NL80211_MESH_POWER_UNKNOWN); 1252 break; 1253 default: 1254 /* nothing */ 1255 break; 1256 } 1257 } 1258 1259 switch (params->plink_action) { 1260 case NL80211_PLINK_ACTION_NO_ACTION: 1261 /* nothing */ 1262 break; 1263 case NL80211_PLINK_ACTION_OPEN: 1264 changed |= mesh_plink_open(sta); 1265 break; 1266 case NL80211_PLINK_ACTION_BLOCK: 1267 changed |= mesh_plink_block(sta); 1268 break; 1269 } 1270 1271 if (params->local_pm) 1272 changed |= ieee80211_mps_set_sta_local_pm(sta, 1273 params->local_pm); 1274 1275 ieee80211_mbss_info_change_notify(sdata, changed); 1276 #endif 1277 } 1278 1279 static int sta_apply_parameters(struct ieee80211_local *local, 1280 struct sta_info *sta, 1281 struct station_parameters *params) 1282 { 1283 int ret = 0; 1284 struct ieee80211_supported_band *sband; 1285 struct ieee80211_sub_if_data *sdata = sta->sdata; 1286 u32 mask, set; 1287 1288 sband = ieee80211_get_sband(sdata); 1289 if (!sband) 1290 return -EINVAL; 1291 1292 mask = params->sta_flags_mask; 1293 set = params->sta_flags_set; 1294 1295 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1296 /* 1297 * In mesh mode, ASSOCIATED isn't part of the nl80211 1298 * API but must follow AUTHENTICATED for driver state. 1299 */ 1300 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1301 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1302 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1303 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1304 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1305 /* 1306 * TDLS -- everything follows authorized, but 1307 * only becoming authorized is possible, not 1308 * going back 1309 */ 1310 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1311 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1312 BIT(NL80211_STA_FLAG_ASSOCIATED); 1313 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1314 BIT(NL80211_STA_FLAG_ASSOCIATED); 1315 } 1316 } 1317 1318 if (mask & BIT(NL80211_STA_FLAG_WME) && 1319 local->hw.queues >= IEEE80211_NUM_ACS) 1320 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1321 1322 /* auth flags will be set later for TDLS, 1323 * and for unassociated stations that move to assocaited */ 1324 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1325 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1326 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1327 ret = sta_apply_auth_flags(local, sta, mask, set); 1328 if (ret) 1329 return ret; 1330 } 1331 1332 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1333 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1334 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1335 else 1336 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1337 } 1338 1339 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1340 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1341 if (set & BIT(NL80211_STA_FLAG_MFP)) 1342 set_sta_flag(sta, WLAN_STA_MFP); 1343 else 1344 clear_sta_flag(sta, WLAN_STA_MFP); 1345 } 1346 1347 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1348 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1349 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1350 else 1351 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1352 } 1353 1354 /* mark TDLS channel switch support, if the AP allows it */ 1355 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1356 !sdata->u.mgd.tdls_chan_switch_prohibited && 1357 params->ext_capab_len >= 4 && 1358 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1359 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1360 1361 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1362 !sdata->u.mgd.tdls_wider_bw_prohibited && 1363 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1364 params->ext_capab_len >= 8 && 1365 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1366 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1367 1368 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1369 sta->sta.uapsd_queues = params->uapsd_queues; 1370 sta->sta.max_sp = params->max_sp; 1371 } 1372 1373 /* The sender might not have sent the last bit, consider it to be 0 */ 1374 if (params->ext_capab_len >= 8) { 1375 u8 val = (params->ext_capab[7] & 1376 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1377 1378 /* we did get all the bits, take the MSB as well */ 1379 if (params->ext_capab_len >= 9) { 1380 u8 val_msb = params->ext_capab[8] & 1381 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1382 val_msb <<= 1; 1383 val |= val_msb; 1384 } 1385 1386 switch (val) { 1387 case 1: 1388 sta->sta.max_amsdu_subframes = 32; 1389 break; 1390 case 2: 1391 sta->sta.max_amsdu_subframes = 16; 1392 break; 1393 case 3: 1394 sta->sta.max_amsdu_subframes = 8; 1395 break; 1396 default: 1397 sta->sta.max_amsdu_subframes = 0; 1398 } 1399 } 1400 1401 /* 1402 * cfg80211 validates this (1-2007) and allows setting the AID 1403 * only when creating a new station entry 1404 */ 1405 if (params->aid) 1406 sta->sta.aid = params->aid; 1407 1408 /* 1409 * Some of the following updates would be racy if called on an 1410 * existing station, via ieee80211_change_station(). However, 1411 * all such changes are rejected by cfg80211 except for updates 1412 * changing the supported rates on an existing but not yet used 1413 * TDLS peer. 1414 */ 1415 1416 if (params->listen_interval >= 0) 1417 sta->listen_interval = params->listen_interval; 1418 1419 if (params->supported_rates) { 1420 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1421 sband, params->supported_rates, 1422 params->supported_rates_len, 1423 &sta->sta.supp_rates[sband->band]); 1424 } 1425 1426 if (params->ht_capa) 1427 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1428 params->ht_capa, sta); 1429 1430 /* VHT can override some HT caps such as the A-MSDU max length */ 1431 if (params->vht_capa) 1432 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1433 params->vht_capa, sta); 1434 1435 if (params->he_capa) 1436 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1437 (void *)params->he_capa, 1438 params->he_capa_len, sta); 1439 1440 if (params->opmode_notif_used) { 1441 /* returned value is only needed for rc update, but the 1442 * rc isn't initialized here yet, so ignore it 1443 */ 1444 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1445 sband->band); 1446 } 1447 1448 if (params->support_p2p_ps >= 0) 1449 sta->sta.support_p2p_ps = params->support_p2p_ps; 1450 1451 if (ieee80211_vif_is_mesh(&sdata->vif)) 1452 sta_apply_mesh_params(local, sta, params); 1453 1454 /* set the STA state after all sta info from usermode has been set */ 1455 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1456 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1457 ret = sta_apply_auth_flags(local, sta, mask, set); 1458 if (ret) 1459 return ret; 1460 } 1461 1462 return 0; 1463 } 1464 1465 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1466 const u8 *mac, 1467 struct station_parameters *params) 1468 { 1469 struct ieee80211_local *local = wiphy_priv(wiphy); 1470 struct sta_info *sta; 1471 struct ieee80211_sub_if_data *sdata; 1472 int err; 1473 int layer2_update; 1474 1475 if (params->vlan) { 1476 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1477 1478 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1479 sdata->vif.type != NL80211_IFTYPE_AP) 1480 return -EINVAL; 1481 } else 1482 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1483 1484 if (ether_addr_equal(mac, sdata->vif.addr)) 1485 return -EINVAL; 1486 1487 if (is_multicast_ether_addr(mac)) 1488 return -EINVAL; 1489 1490 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1491 if (!sta) 1492 return -ENOMEM; 1493 1494 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1495 sta->sta.tdls = true; 1496 1497 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1498 !sdata->u.mgd.associated) 1499 return -EINVAL; 1500 1501 err = sta_apply_parameters(local, sta, params); 1502 if (err) { 1503 sta_info_free(local, sta); 1504 return err; 1505 } 1506 1507 /* 1508 * for TDLS and for unassociated station, rate control should be 1509 * initialized only when rates are known and station is marked 1510 * authorized/associated 1511 */ 1512 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1513 test_sta_flag(sta, WLAN_STA_ASSOC)) 1514 rate_control_rate_init(sta); 1515 1516 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1517 sdata->vif.type == NL80211_IFTYPE_AP; 1518 1519 err = sta_info_insert_rcu(sta); 1520 if (err) { 1521 rcu_read_unlock(); 1522 return err; 1523 } 1524 1525 if (layer2_update) 1526 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1527 1528 rcu_read_unlock(); 1529 1530 return 0; 1531 } 1532 1533 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1534 struct station_del_parameters *params) 1535 { 1536 struct ieee80211_sub_if_data *sdata; 1537 1538 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1539 1540 if (params->mac) 1541 return sta_info_destroy_addr_bss(sdata, params->mac); 1542 1543 sta_info_flush(sdata); 1544 return 0; 1545 } 1546 1547 static int ieee80211_change_station(struct wiphy *wiphy, 1548 struct net_device *dev, const u8 *mac, 1549 struct station_parameters *params) 1550 { 1551 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1552 struct ieee80211_local *local = wiphy_priv(wiphy); 1553 struct sta_info *sta; 1554 struct ieee80211_sub_if_data *vlansdata; 1555 enum cfg80211_station_type statype; 1556 int err; 1557 1558 mutex_lock(&local->sta_mtx); 1559 1560 sta = sta_info_get_bss(sdata, mac); 1561 if (!sta) { 1562 err = -ENOENT; 1563 goto out_err; 1564 } 1565 1566 switch (sdata->vif.type) { 1567 case NL80211_IFTYPE_MESH_POINT: 1568 if (sdata->u.mesh.user_mpm) 1569 statype = CFG80211_STA_MESH_PEER_USER; 1570 else 1571 statype = CFG80211_STA_MESH_PEER_KERNEL; 1572 break; 1573 case NL80211_IFTYPE_ADHOC: 1574 statype = CFG80211_STA_IBSS; 1575 break; 1576 case NL80211_IFTYPE_STATION: 1577 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1578 statype = CFG80211_STA_AP_STA; 1579 break; 1580 } 1581 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1582 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1583 else 1584 statype = CFG80211_STA_TDLS_PEER_SETUP; 1585 break; 1586 case NL80211_IFTYPE_AP: 1587 case NL80211_IFTYPE_AP_VLAN: 1588 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1589 statype = CFG80211_STA_AP_CLIENT; 1590 else 1591 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1592 break; 1593 default: 1594 err = -EOPNOTSUPP; 1595 goto out_err; 1596 } 1597 1598 err = cfg80211_check_station_change(wiphy, params, statype); 1599 if (err) 1600 goto out_err; 1601 1602 if (params->vlan && params->vlan != sta->sdata->dev) { 1603 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1604 1605 if (params->vlan->ieee80211_ptr->use_4addr) { 1606 if (vlansdata->u.vlan.sta) { 1607 err = -EBUSY; 1608 goto out_err; 1609 } 1610 1611 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1612 __ieee80211_check_fast_rx_iface(vlansdata); 1613 } 1614 1615 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1616 sta->sdata->u.vlan.sta) 1617 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1618 1619 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1620 ieee80211_vif_dec_num_mcast(sta->sdata); 1621 1622 sta->sdata = vlansdata; 1623 ieee80211_check_fast_xmit(sta); 1624 1625 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1626 ieee80211_vif_inc_num_mcast(sta->sdata); 1627 1628 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1629 } 1630 1631 err = sta_apply_parameters(local, sta, params); 1632 if (err) 1633 goto out_err; 1634 1635 mutex_unlock(&local->sta_mtx); 1636 1637 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1638 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1639 sta->known_smps_mode != sta->sdata->bss->req_smps && 1640 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1641 sta_info_tx_streams(sta) != 1) { 1642 ht_dbg(sta->sdata, 1643 "%pM just authorized and MIMO capable - update SMPS\n", 1644 sta->sta.addr); 1645 ieee80211_send_smps_action(sta->sdata, 1646 sta->sdata->bss->req_smps, 1647 sta->sta.addr, 1648 sta->sdata->vif.bss_conf.bssid); 1649 } 1650 1651 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1652 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1653 ieee80211_recalc_ps(local); 1654 ieee80211_recalc_ps_vif(sdata); 1655 } 1656 1657 return 0; 1658 out_err: 1659 mutex_unlock(&local->sta_mtx); 1660 return err; 1661 } 1662 1663 #ifdef CONFIG_MAC80211_MESH 1664 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1665 const u8 *dst, const u8 *next_hop) 1666 { 1667 struct ieee80211_sub_if_data *sdata; 1668 struct mesh_path *mpath; 1669 struct sta_info *sta; 1670 1671 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1672 1673 rcu_read_lock(); 1674 sta = sta_info_get(sdata, next_hop); 1675 if (!sta) { 1676 rcu_read_unlock(); 1677 return -ENOENT; 1678 } 1679 1680 mpath = mesh_path_add(sdata, dst); 1681 if (IS_ERR(mpath)) { 1682 rcu_read_unlock(); 1683 return PTR_ERR(mpath); 1684 } 1685 1686 mesh_path_fix_nexthop(mpath, sta); 1687 1688 rcu_read_unlock(); 1689 return 0; 1690 } 1691 1692 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1693 const u8 *dst) 1694 { 1695 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1696 1697 if (dst) 1698 return mesh_path_del(sdata, dst); 1699 1700 mesh_path_flush_by_iface(sdata); 1701 return 0; 1702 } 1703 1704 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1705 const u8 *dst, const u8 *next_hop) 1706 { 1707 struct ieee80211_sub_if_data *sdata; 1708 struct mesh_path *mpath; 1709 struct sta_info *sta; 1710 1711 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1712 1713 rcu_read_lock(); 1714 1715 sta = sta_info_get(sdata, next_hop); 1716 if (!sta) { 1717 rcu_read_unlock(); 1718 return -ENOENT; 1719 } 1720 1721 mpath = mesh_path_lookup(sdata, dst); 1722 if (!mpath) { 1723 rcu_read_unlock(); 1724 return -ENOENT; 1725 } 1726 1727 mesh_path_fix_nexthop(mpath, sta); 1728 1729 rcu_read_unlock(); 1730 return 0; 1731 } 1732 1733 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1734 struct mpath_info *pinfo) 1735 { 1736 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1737 1738 if (next_hop_sta) 1739 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1740 else 1741 eth_zero_addr(next_hop); 1742 1743 memset(pinfo, 0, sizeof(*pinfo)); 1744 1745 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1746 1747 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1748 MPATH_INFO_SN | 1749 MPATH_INFO_METRIC | 1750 MPATH_INFO_EXPTIME | 1751 MPATH_INFO_DISCOVERY_TIMEOUT | 1752 MPATH_INFO_DISCOVERY_RETRIES | 1753 MPATH_INFO_FLAGS; 1754 1755 pinfo->frame_qlen = mpath->frame_queue.qlen; 1756 pinfo->sn = mpath->sn; 1757 pinfo->metric = mpath->metric; 1758 if (time_before(jiffies, mpath->exp_time)) 1759 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1760 pinfo->discovery_timeout = 1761 jiffies_to_msecs(mpath->discovery_timeout); 1762 pinfo->discovery_retries = mpath->discovery_retries; 1763 if (mpath->flags & MESH_PATH_ACTIVE) 1764 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1765 if (mpath->flags & MESH_PATH_RESOLVING) 1766 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1767 if (mpath->flags & MESH_PATH_SN_VALID) 1768 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1769 if (mpath->flags & MESH_PATH_FIXED) 1770 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1771 if (mpath->flags & MESH_PATH_RESOLVED) 1772 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1773 } 1774 1775 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1776 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1777 1778 { 1779 struct ieee80211_sub_if_data *sdata; 1780 struct mesh_path *mpath; 1781 1782 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1783 1784 rcu_read_lock(); 1785 mpath = mesh_path_lookup(sdata, dst); 1786 if (!mpath) { 1787 rcu_read_unlock(); 1788 return -ENOENT; 1789 } 1790 memcpy(dst, mpath->dst, ETH_ALEN); 1791 mpath_set_pinfo(mpath, next_hop, pinfo); 1792 rcu_read_unlock(); 1793 return 0; 1794 } 1795 1796 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1797 int idx, u8 *dst, u8 *next_hop, 1798 struct mpath_info *pinfo) 1799 { 1800 struct ieee80211_sub_if_data *sdata; 1801 struct mesh_path *mpath; 1802 1803 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1804 1805 rcu_read_lock(); 1806 mpath = mesh_path_lookup_by_idx(sdata, idx); 1807 if (!mpath) { 1808 rcu_read_unlock(); 1809 return -ENOENT; 1810 } 1811 memcpy(dst, mpath->dst, ETH_ALEN); 1812 mpath_set_pinfo(mpath, next_hop, pinfo); 1813 rcu_read_unlock(); 1814 return 0; 1815 } 1816 1817 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1818 struct mpath_info *pinfo) 1819 { 1820 memset(pinfo, 0, sizeof(*pinfo)); 1821 memcpy(mpp, mpath->mpp, ETH_ALEN); 1822 1823 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1824 } 1825 1826 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1827 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1828 1829 { 1830 struct ieee80211_sub_if_data *sdata; 1831 struct mesh_path *mpath; 1832 1833 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1834 1835 rcu_read_lock(); 1836 mpath = mpp_path_lookup(sdata, dst); 1837 if (!mpath) { 1838 rcu_read_unlock(); 1839 return -ENOENT; 1840 } 1841 memcpy(dst, mpath->dst, ETH_ALEN); 1842 mpp_set_pinfo(mpath, mpp, pinfo); 1843 rcu_read_unlock(); 1844 return 0; 1845 } 1846 1847 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1848 int idx, u8 *dst, u8 *mpp, 1849 struct mpath_info *pinfo) 1850 { 1851 struct ieee80211_sub_if_data *sdata; 1852 struct mesh_path *mpath; 1853 1854 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1855 1856 rcu_read_lock(); 1857 mpath = mpp_path_lookup_by_idx(sdata, idx); 1858 if (!mpath) { 1859 rcu_read_unlock(); 1860 return -ENOENT; 1861 } 1862 memcpy(dst, mpath->dst, ETH_ALEN); 1863 mpp_set_pinfo(mpath, mpp, pinfo); 1864 rcu_read_unlock(); 1865 return 0; 1866 } 1867 1868 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1869 struct net_device *dev, 1870 struct mesh_config *conf) 1871 { 1872 struct ieee80211_sub_if_data *sdata; 1873 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1874 1875 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1876 return 0; 1877 } 1878 1879 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1880 { 1881 return (mask >> (parm-1)) & 0x1; 1882 } 1883 1884 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1885 const struct mesh_setup *setup) 1886 { 1887 u8 *new_ie; 1888 const u8 *old_ie; 1889 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1890 struct ieee80211_sub_if_data, u.mesh); 1891 1892 /* allocate information elements */ 1893 new_ie = NULL; 1894 old_ie = ifmsh->ie; 1895 1896 if (setup->ie_len) { 1897 new_ie = kmemdup(setup->ie, setup->ie_len, 1898 GFP_KERNEL); 1899 if (!new_ie) 1900 return -ENOMEM; 1901 } 1902 ifmsh->ie_len = setup->ie_len; 1903 ifmsh->ie = new_ie; 1904 kfree(old_ie); 1905 1906 /* now copy the rest of the setup parameters */ 1907 ifmsh->mesh_id_len = setup->mesh_id_len; 1908 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1909 ifmsh->mesh_sp_id = setup->sync_method; 1910 ifmsh->mesh_pp_id = setup->path_sel_proto; 1911 ifmsh->mesh_pm_id = setup->path_metric; 1912 ifmsh->user_mpm = setup->user_mpm; 1913 ifmsh->mesh_auth_id = setup->auth_id; 1914 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1915 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1916 if (setup->is_authenticated) 1917 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1918 if (setup->is_secure) 1919 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1920 1921 /* mcast rate setting in Mesh Node */ 1922 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1923 sizeof(setup->mcast_rate)); 1924 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1925 1926 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1927 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1928 1929 return 0; 1930 } 1931 1932 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1933 struct net_device *dev, u32 mask, 1934 const struct mesh_config *nconf) 1935 { 1936 struct mesh_config *conf; 1937 struct ieee80211_sub_if_data *sdata; 1938 struct ieee80211_if_mesh *ifmsh; 1939 1940 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1941 ifmsh = &sdata->u.mesh; 1942 1943 /* Set the config options which we are interested in setting */ 1944 conf = &(sdata->u.mesh.mshcfg); 1945 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1946 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1947 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1948 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1949 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1950 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1952 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1953 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1954 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1955 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1956 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1957 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1958 conf->element_ttl = nconf->element_ttl; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1960 if (ifmsh->user_mpm) 1961 return -EBUSY; 1962 conf->auto_open_plinks = nconf->auto_open_plinks; 1963 } 1964 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1965 conf->dot11MeshNbrOffsetMaxNeighbor = 1966 nconf->dot11MeshNbrOffsetMaxNeighbor; 1967 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1968 conf->dot11MeshHWMPmaxPREQretries = 1969 nconf->dot11MeshHWMPmaxPREQretries; 1970 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1971 conf->path_refresh_time = nconf->path_refresh_time; 1972 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1973 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1974 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1975 conf->dot11MeshHWMPactivePathTimeout = 1976 nconf->dot11MeshHWMPactivePathTimeout; 1977 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1978 conf->dot11MeshHWMPpreqMinInterval = 1979 nconf->dot11MeshHWMPpreqMinInterval; 1980 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1981 conf->dot11MeshHWMPperrMinInterval = 1982 nconf->dot11MeshHWMPperrMinInterval; 1983 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1984 mask)) 1985 conf->dot11MeshHWMPnetDiameterTraversalTime = 1986 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1987 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1988 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1989 ieee80211_mesh_root_setup(ifmsh); 1990 } 1991 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1992 /* our current gate announcement implementation rides on root 1993 * announcements, so require this ifmsh to also be a root node 1994 * */ 1995 if (nconf->dot11MeshGateAnnouncementProtocol && 1996 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1997 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1998 ieee80211_mesh_root_setup(ifmsh); 1999 } 2000 conf->dot11MeshGateAnnouncementProtocol = 2001 nconf->dot11MeshGateAnnouncementProtocol; 2002 } 2003 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2004 conf->dot11MeshHWMPRannInterval = 2005 nconf->dot11MeshHWMPRannInterval; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2007 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2009 /* our RSSI threshold implementation is supported only for 2010 * devices that report signal in dBm. 2011 */ 2012 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2013 return -ENOTSUPP; 2014 conf->rssi_threshold = nconf->rssi_threshold; 2015 } 2016 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2017 conf->ht_opmode = nconf->ht_opmode; 2018 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2019 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2020 } 2021 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2022 conf->dot11MeshHWMPactivePathToRootTimeout = 2023 nconf->dot11MeshHWMPactivePathToRootTimeout; 2024 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2025 conf->dot11MeshHWMProotInterval = 2026 nconf->dot11MeshHWMProotInterval; 2027 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2028 conf->dot11MeshHWMPconfirmationInterval = 2029 nconf->dot11MeshHWMPconfirmationInterval; 2030 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2031 conf->power_mode = nconf->power_mode; 2032 ieee80211_mps_local_status_update(sdata); 2033 } 2034 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2035 conf->dot11MeshAwakeWindowDuration = 2036 nconf->dot11MeshAwakeWindowDuration; 2037 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2038 conf->plink_timeout = nconf->plink_timeout; 2039 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2040 conf->dot11MeshConnectedToMeshGate = 2041 nconf->dot11MeshConnectedToMeshGate; 2042 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2043 return 0; 2044 } 2045 2046 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2047 const struct mesh_config *conf, 2048 const struct mesh_setup *setup) 2049 { 2050 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2051 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2052 int err; 2053 2054 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2055 err = copy_mesh_setup(ifmsh, setup); 2056 if (err) 2057 return err; 2058 2059 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2060 2061 /* can mesh use other SMPS modes? */ 2062 sdata->smps_mode = IEEE80211_SMPS_OFF; 2063 sdata->needed_rx_chains = sdata->local->rx_chains; 2064 2065 mutex_lock(&sdata->local->mtx); 2066 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2067 IEEE80211_CHANCTX_SHARED); 2068 mutex_unlock(&sdata->local->mtx); 2069 if (err) 2070 return err; 2071 2072 return ieee80211_start_mesh(sdata); 2073 } 2074 2075 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2076 { 2077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2078 2079 ieee80211_stop_mesh(sdata); 2080 mutex_lock(&sdata->local->mtx); 2081 ieee80211_vif_release_channel(sdata); 2082 mutex_unlock(&sdata->local->mtx); 2083 2084 return 0; 2085 } 2086 #endif 2087 2088 static int ieee80211_change_bss(struct wiphy *wiphy, 2089 struct net_device *dev, 2090 struct bss_parameters *params) 2091 { 2092 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2093 struct ieee80211_supported_band *sband; 2094 u32 changed = 0; 2095 2096 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2097 return -ENOENT; 2098 2099 sband = ieee80211_get_sband(sdata); 2100 if (!sband) 2101 return -EINVAL; 2102 2103 if (params->use_cts_prot >= 0) { 2104 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2105 changed |= BSS_CHANGED_ERP_CTS_PROT; 2106 } 2107 if (params->use_short_preamble >= 0) { 2108 sdata->vif.bss_conf.use_short_preamble = 2109 params->use_short_preamble; 2110 changed |= BSS_CHANGED_ERP_PREAMBLE; 2111 } 2112 2113 if (!sdata->vif.bss_conf.use_short_slot && 2114 sband->band == NL80211_BAND_5GHZ) { 2115 sdata->vif.bss_conf.use_short_slot = true; 2116 changed |= BSS_CHANGED_ERP_SLOT; 2117 } 2118 2119 if (params->use_short_slot_time >= 0) { 2120 sdata->vif.bss_conf.use_short_slot = 2121 params->use_short_slot_time; 2122 changed |= BSS_CHANGED_ERP_SLOT; 2123 } 2124 2125 if (params->basic_rates) { 2126 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2127 wiphy->bands[sband->band], 2128 params->basic_rates, 2129 params->basic_rates_len, 2130 &sdata->vif.bss_conf.basic_rates); 2131 changed |= BSS_CHANGED_BASIC_RATES; 2132 ieee80211_check_rate_mask(sdata); 2133 } 2134 2135 if (params->ap_isolate >= 0) { 2136 if (params->ap_isolate) 2137 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2138 else 2139 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2140 ieee80211_check_fast_rx_iface(sdata); 2141 } 2142 2143 if (params->ht_opmode >= 0) { 2144 sdata->vif.bss_conf.ht_operation_mode = 2145 (u16) params->ht_opmode; 2146 changed |= BSS_CHANGED_HT; 2147 } 2148 2149 if (params->p2p_ctwindow >= 0) { 2150 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2151 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2152 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2153 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2154 changed |= BSS_CHANGED_P2P_PS; 2155 } 2156 2157 if (params->p2p_opp_ps > 0) { 2158 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2159 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2160 changed |= BSS_CHANGED_P2P_PS; 2161 } else if (params->p2p_opp_ps == 0) { 2162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2163 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2164 changed |= BSS_CHANGED_P2P_PS; 2165 } 2166 2167 ieee80211_bss_info_change_notify(sdata, changed); 2168 2169 return 0; 2170 } 2171 2172 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2173 struct net_device *dev, 2174 struct ieee80211_txq_params *params) 2175 { 2176 struct ieee80211_local *local = wiphy_priv(wiphy); 2177 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2178 struct ieee80211_tx_queue_params p; 2179 2180 if (!local->ops->conf_tx) 2181 return -EOPNOTSUPP; 2182 2183 if (local->hw.queues < IEEE80211_NUM_ACS) 2184 return -EOPNOTSUPP; 2185 2186 memset(&p, 0, sizeof(p)); 2187 p.aifs = params->aifs; 2188 p.cw_max = params->cwmax; 2189 p.cw_min = params->cwmin; 2190 p.txop = params->txop; 2191 2192 /* 2193 * Setting tx queue params disables u-apsd because it's only 2194 * called in master mode. 2195 */ 2196 p.uapsd = false; 2197 2198 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2199 2200 sdata->tx_conf[params->ac] = p; 2201 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2202 wiphy_debug(local->hw.wiphy, 2203 "failed to set TX queue parameters for AC %d\n", 2204 params->ac); 2205 return -EINVAL; 2206 } 2207 2208 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2209 2210 return 0; 2211 } 2212 2213 #ifdef CONFIG_PM 2214 static int ieee80211_suspend(struct wiphy *wiphy, 2215 struct cfg80211_wowlan *wowlan) 2216 { 2217 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2218 } 2219 2220 static int ieee80211_resume(struct wiphy *wiphy) 2221 { 2222 return __ieee80211_resume(wiphy_priv(wiphy)); 2223 } 2224 #else 2225 #define ieee80211_suspend NULL 2226 #define ieee80211_resume NULL 2227 #endif 2228 2229 static int ieee80211_scan(struct wiphy *wiphy, 2230 struct cfg80211_scan_request *req) 2231 { 2232 struct ieee80211_sub_if_data *sdata; 2233 2234 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2235 2236 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2237 case NL80211_IFTYPE_STATION: 2238 case NL80211_IFTYPE_ADHOC: 2239 case NL80211_IFTYPE_MESH_POINT: 2240 case NL80211_IFTYPE_P2P_CLIENT: 2241 case NL80211_IFTYPE_P2P_DEVICE: 2242 break; 2243 case NL80211_IFTYPE_P2P_GO: 2244 if (sdata->local->ops->hw_scan) 2245 break; 2246 /* 2247 * FIXME: implement NoA while scanning in software, 2248 * for now fall through to allow scanning only when 2249 * beaconing hasn't been configured yet 2250 */ 2251 /* fall through */ 2252 case NL80211_IFTYPE_AP: 2253 /* 2254 * If the scan has been forced (and the driver supports 2255 * forcing), don't care about being beaconing already. 2256 * This will create problems to the attached stations (e.g. all 2257 * the frames sent while scanning on other channel will be 2258 * lost) 2259 */ 2260 if (sdata->u.ap.beacon && 2261 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2262 !(req->flags & NL80211_SCAN_FLAG_AP))) 2263 return -EOPNOTSUPP; 2264 break; 2265 case NL80211_IFTYPE_NAN: 2266 default: 2267 return -EOPNOTSUPP; 2268 } 2269 2270 return ieee80211_request_scan(sdata, req); 2271 } 2272 2273 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2274 { 2275 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2276 } 2277 2278 static int 2279 ieee80211_sched_scan_start(struct wiphy *wiphy, 2280 struct net_device *dev, 2281 struct cfg80211_sched_scan_request *req) 2282 { 2283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2284 2285 if (!sdata->local->ops->sched_scan_start) 2286 return -EOPNOTSUPP; 2287 2288 return ieee80211_request_sched_scan_start(sdata, req); 2289 } 2290 2291 static int 2292 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2293 u64 reqid) 2294 { 2295 struct ieee80211_local *local = wiphy_priv(wiphy); 2296 2297 if (!local->ops->sched_scan_stop) 2298 return -EOPNOTSUPP; 2299 2300 return ieee80211_request_sched_scan_stop(local); 2301 } 2302 2303 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2304 struct cfg80211_auth_request *req) 2305 { 2306 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2307 } 2308 2309 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2310 struct cfg80211_assoc_request *req) 2311 { 2312 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2313 } 2314 2315 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2316 struct cfg80211_deauth_request *req) 2317 { 2318 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2319 } 2320 2321 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2322 struct cfg80211_disassoc_request *req) 2323 { 2324 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2325 } 2326 2327 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2328 struct cfg80211_ibss_params *params) 2329 { 2330 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2331 } 2332 2333 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2334 { 2335 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2336 } 2337 2338 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2339 struct ocb_setup *setup) 2340 { 2341 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2342 } 2343 2344 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2345 { 2346 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2347 } 2348 2349 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2350 int rate[NUM_NL80211_BANDS]) 2351 { 2352 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2353 2354 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2355 sizeof(int) * NUM_NL80211_BANDS); 2356 2357 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2358 2359 return 0; 2360 } 2361 2362 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2363 { 2364 struct ieee80211_local *local = wiphy_priv(wiphy); 2365 int err; 2366 2367 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2368 ieee80211_check_fast_xmit_all(local); 2369 2370 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2371 2372 if (err) { 2373 ieee80211_check_fast_xmit_all(local); 2374 return err; 2375 } 2376 } 2377 2378 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2379 (changed & WIPHY_PARAM_DYN_ACK)) { 2380 s16 coverage_class; 2381 2382 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2383 wiphy->coverage_class : -1; 2384 err = drv_set_coverage_class(local, coverage_class); 2385 2386 if (err) 2387 return err; 2388 } 2389 2390 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2391 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2392 2393 if (err) 2394 return err; 2395 } 2396 2397 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2398 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2399 return -EINVAL; 2400 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2401 } 2402 if (changed & WIPHY_PARAM_RETRY_LONG) { 2403 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2404 return -EINVAL; 2405 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2406 } 2407 if (changed & 2408 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2409 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2410 2411 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2412 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2413 WIPHY_PARAM_TXQ_QUANTUM)) 2414 ieee80211_txq_set_params(local); 2415 2416 return 0; 2417 } 2418 2419 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2420 struct wireless_dev *wdev, 2421 enum nl80211_tx_power_setting type, int mbm) 2422 { 2423 struct ieee80211_local *local = wiphy_priv(wiphy); 2424 struct ieee80211_sub_if_data *sdata; 2425 enum nl80211_tx_power_setting txp_type = type; 2426 bool update_txp_type = false; 2427 bool has_monitor = false; 2428 2429 if (wdev) { 2430 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2431 2432 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2433 sdata = rtnl_dereference(local->monitor_sdata); 2434 if (!sdata) 2435 return -EOPNOTSUPP; 2436 } 2437 2438 switch (type) { 2439 case NL80211_TX_POWER_AUTOMATIC: 2440 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2441 txp_type = NL80211_TX_POWER_LIMITED; 2442 break; 2443 case NL80211_TX_POWER_LIMITED: 2444 case NL80211_TX_POWER_FIXED: 2445 if (mbm < 0 || (mbm % 100)) 2446 return -EOPNOTSUPP; 2447 sdata->user_power_level = MBM_TO_DBM(mbm); 2448 break; 2449 } 2450 2451 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2452 update_txp_type = true; 2453 sdata->vif.bss_conf.txpower_type = txp_type; 2454 } 2455 2456 ieee80211_recalc_txpower(sdata, update_txp_type); 2457 2458 return 0; 2459 } 2460 2461 switch (type) { 2462 case NL80211_TX_POWER_AUTOMATIC: 2463 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2464 txp_type = NL80211_TX_POWER_LIMITED; 2465 break; 2466 case NL80211_TX_POWER_LIMITED: 2467 case NL80211_TX_POWER_FIXED: 2468 if (mbm < 0 || (mbm % 100)) 2469 return -EOPNOTSUPP; 2470 local->user_power_level = MBM_TO_DBM(mbm); 2471 break; 2472 } 2473 2474 mutex_lock(&local->iflist_mtx); 2475 list_for_each_entry(sdata, &local->interfaces, list) { 2476 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2477 has_monitor = true; 2478 continue; 2479 } 2480 sdata->user_power_level = local->user_power_level; 2481 if (txp_type != sdata->vif.bss_conf.txpower_type) 2482 update_txp_type = true; 2483 sdata->vif.bss_conf.txpower_type = txp_type; 2484 } 2485 list_for_each_entry(sdata, &local->interfaces, list) { 2486 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2487 continue; 2488 ieee80211_recalc_txpower(sdata, update_txp_type); 2489 } 2490 mutex_unlock(&local->iflist_mtx); 2491 2492 if (has_monitor) { 2493 sdata = rtnl_dereference(local->monitor_sdata); 2494 if (sdata) { 2495 sdata->user_power_level = local->user_power_level; 2496 if (txp_type != sdata->vif.bss_conf.txpower_type) 2497 update_txp_type = true; 2498 sdata->vif.bss_conf.txpower_type = txp_type; 2499 2500 ieee80211_recalc_txpower(sdata, update_txp_type); 2501 } 2502 } 2503 2504 return 0; 2505 } 2506 2507 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2508 struct wireless_dev *wdev, 2509 int *dbm) 2510 { 2511 struct ieee80211_local *local = wiphy_priv(wiphy); 2512 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2513 2514 if (local->ops->get_txpower) 2515 return drv_get_txpower(local, sdata, dbm); 2516 2517 if (!local->use_chanctx) 2518 *dbm = local->hw.conf.power_level; 2519 else 2520 *dbm = sdata->vif.bss_conf.txpower; 2521 2522 return 0; 2523 } 2524 2525 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2526 const u8 *addr) 2527 { 2528 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2529 2530 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2531 2532 return 0; 2533 } 2534 2535 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2536 { 2537 struct ieee80211_local *local = wiphy_priv(wiphy); 2538 2539 drv_rfkill_poll(local); 2540 } 2541 2542 #ifdef CONFIG_NL80211_TESTMODE 2543 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2544 struct wireless_dev *wdev, 2545 void *data, int len) 2546 { 2547 struct ieee80211_local *local = wiphy_priv(wiphy); 2548 struct ieee80211_vif *vif = NULL; 2549 2550 if (!local->ops->testmode_cmd) 2551 return -EOPNOTSUPP; 2552 2553 if (wdev) { 2554 struct ieee80211_sub_if_data *sdata; 2555 2556 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2557 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2558 vif = &sdata->vif; 2559 } 2560 2561 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2562 } 2563 2564 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2565 struct sk_buff *skb, 2566 struct netlink_callback *cb, 2567 void *data, int len) 2568 { 2569 struct ieee80211_local *local = wiphy_priv(wiphy); 2570 2571 if (!local->ops->testmode_dump) 2572 return -EOPNOTSUPP; 2573 2574 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2575 } 2576 #endif 2577 2578 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2579 enum ieee80211_smps_mode smps_mode) 2580 { 2581 struct sta_info *sta; 2582 enum ieee80211_smps_mode old_req; 2583 2584 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2585 return -EINVAL; 2586 2587 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2588 return 0; 2589 2590 old_req = sdata->u.ap.req_smps; 2591 sdata->u.ap.req_smps = smps_mode; 2592 2593 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2594 if (old_req == smps_mode || 2595 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2596 return 0; 2597 2598 ht_dbg(sdata, 2599 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2600 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2601 2602 mutex_lock(&sdata->local->sta_mtx); 2603 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2604 /* 2605 * Only stations associated to our AP and 2606 * associated VLANs 2607 */ 2608 if (sta->sdata->bss != &sdata->u.ap) 2609 continue; 2610 2611 /* This station doesn't support MIMO - skip it */ 2612 if (sta_info_tx_streams(sta) == 1) 2613 continue; 2614 2615 /* 2616 * Don't wake up a STA just to send the action frame 2617 * unless we are getting more restrictive. 2618 */ 2619 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2620 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2621 smps_mode)) { 2622 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2623 sta->sta.addr); 2624 continue; 2625 } 2626 2627 /* 2628 * If the STA is not authorized, wait until it gets 2629 * authorized and the action frame will be sent then. 2630 */ 2631 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2632 continue; 2633 2634 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2635 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2636 sdata->vif.bss_conf.bssid); 2637 } 2638 mutex_unlock(&sdata->local->sta_mtx); 2639 2640 sdata->smps_mode = smps_mode; 2641 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2642 2643 return 0; 2644 } 2645 2646 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2647 enum ieee80211_smps_mode smps_mode) 2648 { 2649 const u8 *ap; 2650 enum ieee80211_smps_mode old_req; 2651 int err; 2652 struct sta_info *sta; 2653 bool tdls_peer_found = false; 2654 2655 lockdep_assert_held(&sdata->wdev.mtx); 2656 2657 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2658 return -EINVAL; 2659 2660 old_req = sdata->u.mgd.req_smps; 2661 sdata->u.mgd.req_smps = smps_mode; 2662 2663 if (old_req == smps_mode && 2664 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2665 return 0; 2666 2667 /* 2668 * If not associated, or current association is not an HT 2669 * association, there's no need to do anything, just store 2670 * the new value until we associate. 2671 */ 2672 if (!sdata->u.mgd.associated || 2673 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2674 return 0; 2675 2676 ap = sdata->u.mgd.associated->bssid; 2677 2678 rcu_read_lock(); 2679 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2680 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2681 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2682 continue; 2683 2684 tdls_peer_found = true; 2685 break; 2686 } 2687 rcu_read_unlock(); 2688 2689 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2690 if (tdls_peer_found || !sdata->u.mgd.powersave) 2691 smps_mode = IEEE80211_SMPS_OFF; 2692 else 2693 smps_mode = IEEE80211_SMPS_DYNAMIC; 2694 } 2695 2696 /* send SM PS frame to AP */ 2697 err = ieee80211_send_smps_action(sdata, smps_mode, 2698 ap, ap); 2699 if (err) 2700 sdata->u.mgd.req_smps = old_req; 2701 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2702 ieee80211_teardown_tdls_peers(sdata); 2703 2704 return err; 2705 } 2706 2707 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2708 bool enabled, int timeout) 2709 { 2710 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2711 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2712 2713 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2714 return -EOPNOTSUPP; 2715 2716 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2717 return -EOPNOTSUPP; 2718 2719 if (enabled == sdata->u.mgd.powersave && 2720 timeout == local->dynamic_ps_forced_timeout) 2721 return 0; 2722 2723 sdata->u.mgd.powersave = enabled; 2724 local->dynamic_ps_forced_timeout = timeout; 2725 2726 /* no change, but if automatic follow powersave */ 2727 sdata_lock(sdata); 2728 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2729 sdata_unlock(sdata); 2730 2731 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2732 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2733 2734 ieee80211_recalc_ps(local); 2735 ieee80211_recalc_ps_vif(sdata); 2736 ieee80211_check_fast_rx_iface(sdata); 2737 2738 return 0; 2739 } 2740 2741 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2742 struct net_device *dev, 2743 s32 rssi_thold, u32 rssi_hyst) 2744 { 2745 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2746 struct ieee80211_vif *vif = &sdata->vif; 2747 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2748 2749 if (rssi_thold == bss_conf->cqm_rssi_thold && 2750 rssi_hyst == bss_conf->cqm_rssi_hyst) 2751 return 0; 2752 2753 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2754 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2755 return -EOPNOTSUPP; 2756 2757 bss_conf->cqm_rssi_thold = rssi_thold; 2758 bss_conf->cqm_rssi_hyst = rssi_hyst; 2759 bss_conf->cqm_rssi_low = 0; 2760 bss_conf->cqm_rssi_high = 0; 2761 sdata->u.mgd.last_cqm_event_signal = 0; 2762 2763 /* tell the driver upon association, unless already associated */ 2764 if (sdata->u.mgd.associated && 2765 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2766 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2767 2768 return 0; 2769 } 2770 2771 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2772 struct net_device *dev, 2773 s32 rssi_low, s32 rssi_high) 2774 { 2775 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2776 struct ieee80211_vif *vif = &sdata->vif; 2777 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2778 2779 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2780 return -EOPNOTSUPP; 2781 2782 bss_conf->cqm_rssi_low = rssi_low; 2783 bss_conf->cqm_rssi_high = rssi_high; 2784 bss_conf->cqm_rssi_thold = 0; 2785 bss_conf->cqm_rssi_hyst = 0; 2786 sdata->u.mgd.last_cqm_event_signal = 0; 2787 2788 /* tell the driver upon association, unless already associated */ 2789 if (sdata->u.mgd.associated && 2790 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2791 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2792 2793 return 0; 2794 } 2795 2796 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2797 struct net_device *dev, 2798 const u8 *addr, 2799 const struct cfg80211_bitrate_mask *mask) 2800 { 2801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2802 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2803 int i, ret; 2804 2805 if (!ieee80211_sdata_running(sdata)) 2806 return -ENETDOWN; 2807 2808 /* 2809 * If active validate the setting and reject it if it doesn't leave 2810 * at least one basic rate usable, since we really have to be able 2811 * to send something, and if we're an AP we have to be able to do 2812 * so at a basic rate so that all clients can receive it. 2813 */ 2814 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2815 sdata->vif.bss_conf.chandef.chan) { 2816 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2817 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2818 2819 if (!(mask->control[band].legacy & basic_rates)) 2820 return -EINVAL; 2821 } 2822 2823 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2824 ret = drv_set_bitrate_mask(local, sdata, mask); 2825 if (ret) 2826 return ret; 2827 } 2828 2829 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2830 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2831 int j; 2832 2833 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2834 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2835 sizeof(mask->control[i].ht_mcs)); 2836 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2837 mask->control[i].vht_mcs, 2838 sizeof(mask->control[i].vht_mcs)); 2839 2840 sdata->rc_has_mcs_mask[i] = false; 2841 sdata->rc_has_vht_mcs_mask[i] = false; 2842 if (!sband) 2843 continue; 2844 2845 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2846 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2847 sdata->rc_has_mcs_mask[i] = true; 2848 break; 2849 } 2850 } 2851 2852 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2853 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2854 sdata->rc_has_vht_mcs_mask[i] = true; 2855 break; 2856 } 2857 } 2858 } 2859 2860 return 0; 2861 } 2862 2863 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2864 struct net_device *dev, 2865 struct cfg80211_chan_def *chandef, 2866 u32 cac_time_ms) 2867 { 2868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2869 struct ieee80211_local *local = sdata->local; 2870 int err; 2871 2872 mutex_lock(&local->mtx); 2873 if (!list_empty(&local->roc_list) || local->scanning) { 2874 err = -EBUSY; 2875 goto out_unlock; 2876 } 2877 2878 /* whatever, but channel contexts should not complain about that one */ 2879 sdata->smps_mode = IEEE80211_SMPS_OFF; 2880 sdata->needed_rx_chains = local->rx_chains; 2881 2882 err = ieee80211_vif_use_channel(sdata, chandef, 2883 IEEE80211_CHANCTX_SHARED); 2884 if (err) 2885 goto out_unlock; 2886 2887 ieee80211_queue_delayed_work(&sdata->local->hw, 2888 &sdata->dfs_cac_timer_work, 2889 msecs_to_jiffies(cac_time_ms)); 2890 2891 out_unlock: 2892 mutex_unlock(&local->mtx); 2893 return err; 2894 } 2895 2896 static struct cfg80211_beacon_data * 2897 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2898 { 2899 struct cfg80211_beacon_data *new_beacon; 2900 u8 *pos; 2901 int len; 2902 2903 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2904 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2905 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2906 2907 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2908 if (!new_beacon) 2909 return NULL; 2910 2911 pos = (u8 *)(new_beacon + 1); 2912 if (beacon->head_len) { 2913 new_beacon->head_len = beacon->head_len; 2914 new_beacon->head = pos; 2915 memcpy(pos, beacon->head, beacon->head_len); 2916 pos += beacon->head_len; 2917 } 2918 if (beacon->tail_len) { 2919 new_beacon->tail_len = beacon->tail_len; 2920 new_beacon->tail = pos; 2921 memcpy(pos, beacon->tail, beacon->tail_len); 2922 pos += beacon->tail_len; 2923 } 2924 if (beacon->beacon_ies_len) { 2925 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2926 new_beacon->beacon_ies = pos; 2927 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2928 pos += beacon->beacon_ies_len; 2929 } 2930 if (beacon->proberesp_ies_len) { 2931 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2932 new_beacon->proberesp_ies = pos; 2933 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2934 pos += beacon->proberesp_ies_len; 2935 } 2936 if (beacon->assocresp_ies_len) { 2937 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2938 new_beacon->assocresp_ies = pos; 2939 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2940 pos += beacon->assocresp_ies_len; 2941 } 2942 if (beacon->probe_resp_len) { 2943 new_beacon->probe_resp_len = beacon->probe_resp_len; 2944 new_beacon->probe_resp = pos; 2945 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2946 pos += beacon->probe_resp_len; 2947 } 2948 2949 /* might copy -1, meaning no changes requested */ 2950 new_beacon->ftm_responder = beacon->ftm_responder; 2951 if (beacon->lci) { 2952 new_beacon->lci_len = beacon->lci_len; 2953 new_beacon->lci = pos; 2954 memcpy(pos, beacon->lci, beacon->lci_len); 2955 pos += beacon->lci_len; 2956 } 2957 if (beacon->civicloc) { 2958 new_beacon->civicloc_len = beacon->civicloc_len; 2959 new_beacon->civicloc = pos; 2960 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2961 pos += beacon->civicloc_len; 2962 } 2963 2964 return new_beacon; 2965 } 2966 2967 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2968 { 2969 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2970 2971 ieee80211_queue_work(&sdata->local->hw, 2972 &sdata->csa_finalize_work); 2973 } 2974 EXPORT_SYMBOL(ieee80211_csa_finish); 2975 2976 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2977 u32 *changed) 2978 { 2979 int err; 2980 2981 switch (sdata->vif.type) { 2982 case NL80211_IFTYPE_AP: 2983 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2984 NULL); 2985 kfree(sdata->u.ap.next_beacon); 2986 sdata->u.ap.next_beacon = NULL; 2987 2988 if (err < 0) 2989 return err; 2990 *changed |= err; 2991 break; 2992 case NL80211_IFTYPE_ADHOC: 2993 err = ieee80211_ibss_finish_csa(sdata); 2994 if (err < 0) 2995 return err; 2996 *changed |= err; 2997 break; 2998 #ifdef CONFIG_MAC80211_MESH 2999 case NL80211_IFTYPE_MESH_POINT: 3000 err = ieee80211_mesh_finish_csa(sdata); 3001 if (err < 0) 3002 return err; 3003 *changed |= err; 3004 break; 3005 #endif 3006 default: 3007 WARN_ON(1); 3008 return -EINVAL; 3009 } 3010 3011 return 0; 3012 } 3013 3014 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3015 { 3016 struct ieee80211_local *local = sdata->local; 3017 u32 changed = 0; 3018 int err; 3019 3020 sdata_assert_lock(sdata); 3021 lockdep_assert_held(&local->mtx); 3022 lockdep_assert_held(&local->chanctx_mtx); 3023 3024 /* 3025 * using reservation isn't immediate as it may be deferred until later 3026 * with multi-vif. once reservation is complete it will re-schedule the 3027 * work with no reserved_chanctx so verify chandef to check if it 3028 * completed successfully 3029 */ 3030 3031 if (sdata->reserved_chanctx) { 3032 /* 3033 * with multi-vif csa driver may call ieee80211_csa_finish() 3034 * many times while waiting for other interfaces to use their 3035 * reservations 3036 */ 3037 if (sdata->reserved_ready) 3038 return 0; 3039 3040 return ieee80211_vif_use_reserved_context(sdata); 3041 } 3042 3043 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3044 &sdata->csa_chandef)) 3045 return -EINVAL; 3046 3047 sdata->vif.csa_active = false; 3048 3049 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3050 if (err) 3051 return err; 3052 3053 ieee80211_bss_info_change_notify(sdata, changed); 3054 3055 if (sdata->csa_block_tx) { 3056 ieee80211_wake_vif_queues(local, sdata, 3057 IEEE80211_QUEUE_STOP_REASON_CSA); 3058 sdata->csa_block_tx = false; 3059 } 3060 3061 err = drv_post_channel_switch(sdata); 3062 if (err) 3063 return err; 3064 3065 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3066 3067 return 0; 3068 } 3069 3070 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3071 { 3072 if (__ieee80211_csa_finalize(sdata)) { 3073 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3074 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3075 GFP_KERNEL); 3076 } 3077 } 3078 3079 void ieee80211_csa_finalize_work(struct work_struct *work) 3080 { 3081 struct ieee80211_sub_if_data *sdata = 3082 container_of(work, struct ieee80211_sub_if_data, 3083 csa_finalize_work); 3084 struct ieee80211_local *local = sdata->local; 3085 3086 sdata_lock(sdata); 3087 mutex_lock(&local->mtx); 3088 mutex_lock(&local->chanctx_mtx); 3089 3090 /* AP might have been stopped while waiting for the lock. */ 3091 if (!sdata->vif.csa_active) 3092 goto unlock; 3093 3094 if (!ieee80211_sdata_running(sdata)) 3095 goto unlock; 3096 3097 ieee80211_csa_finalize(sdata); 3098 3099 unlock: 3100 mutex_unlock(&local->chanctx_mtx); 3101 mutex_unlock(&local->mtx); 3102 sdata_unlock(sdata); 3103 } 3104 3105 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3106 struct cfg80211_csa_settings *params, 3107 u32 *changed) 3108 { 3109 struct ieee80211_csa_settings csa = {}; 3110 int err; 3111 3112 switch (sdata->vif.type) { 3113 case NL80211_IFTYPE_AP: 3114 sdata->u.ap.next_beacon = 3115 cfg80211_beacon_dup(¶ms->beacon_after); 3116 if (!sdata->u.ap.next_beacon) 3117 return -ENOMEM; 3118 3119 /* 3120 * With a count of 0, we don't have to wait for any 3121 * TBTT before switching, so complete the CSA 3122 * immediately. In theory, with a count == 1 we 3123 * should delay the switch until just before the next 3124 * TBTT, but that would complicate things so we switch 3125 * immediately too. If we would delay the switch 3126 * until the next TBTT, we would have to set the probe 3127 * response here. 3128 * 3129 * TODO: A channel switch with count <= 1 without 3130 * sending a CSA action frame is kind of useless, 3131 * because the clients won't know we're changing 3132 * channels. The action frame must be implemented 3133 * either here or in the userspace. 3134 */ 3135 if (params->count <= 1) 3136 break; 3137 3138 if ((params->n_counter_offsets_beacon > 3139 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3140 (params->n_counter_offsets_presp > 3141 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3142 return -EINVAL; 3143 3144 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3145 csa.counter_offsets_presp = params->counter_offsets_presp; 3146 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3147 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3148 csa.count = params->count; 3149 3150 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3151 if (err < 0) { 3152 kfree(sdata->u.ap.next_beacon); 3153 return err; 3154 } 3155 *changed |= err; 3156 3157 break; 3158 case NL80211_IFTYPE_ADHOC: 3159 if (!sdata->vif.bss_conf.ibss_joined) 3160 return -EINVAL; 3161 3162 if (params->chandef.width != sdata->u.ibss.chandef.width) 3163 return -EINVAL; 3164 3165 switch (params->chandef.width) { 3166 case NL80211_CHAN_WIDTH_40: 3167 if (cfg80211_get_chandef_type(¶ms->chandef) != 3168 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3169 return -EINVAL; 3170 case NL80211_CHAN_WIDTH_5: 3171 case NL80211_CHAN_WIDTH_10: 3172 case NL80211_CHAN_WIDTH_20_NOHT: 3173 case NL80211_CHAN_WIDTH_20: 3174 break; 3175 default: 3176 return -EINVAL; 3177 } 3178 3179 /* changes into another band are not supported */ 3180 if (sdata->u.ibss.chandef.chan->band != 3181 params->chandef.chan->band) 3182 return -EINVAL; 3183 3184 /* see comments in the NL80211_IFTYPE_AP block */ 3185 if (params->count > 1) { 3186 err = ieee80211_ibss_csa_beacon(sdata, params); 3187 if (err < 0) 3188 return err; 3189 *changed |= err; 3190 } 3191 3192 ieee80211_send_action_csa(sdata, params); 3193 3194 break; 3195 #ifdef CONFIG_MAC80211_MESH 3196 case NL80211_IFTYPE_MESH_POINT: { 3197 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3198 3199 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3200 return -EINVAL; 3201 3202 /* changes into another band are not supported */ 3203 if (sdata->vif.bss_conf.chandef.chan->band != 3204 params->chandef.chan->band) 3205 return -EINVAL; 3206 3207 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3208 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3209 if (!ifmsh->pre_value) 3210 ifmsh->pre_value = 1; 3211 else 3212 ifmsh->pre_value++; 3213 } 3214 3215 /* see comments in the NL80211_IFTYPE_AP block */ 3216 if (params->count > 1) { 3217 err = ieee80211_mesh_csa_beacon(sdata, params); 3218 if (err < 0) { 3219 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3220 return err; 3221 } 3222 *changed |= err; 3223 } 3224 3225 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3226 ieee80211_send_action_csa(sdata, params); 3227 3228 break; 3229 } 3230 #endif 3231 default: 3232 return -EOPNOTSUPP; 3233 } 3234 3235 return 0; 3236 } 3237 3238 static int 3239 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3240 struct cfg80211_csa_settings *params) 3241 { 3242 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3243 struct ieee80211_local *local = sdata->local; 3244 struct ieee80211_channel_switch ch_switch; 3245 struct ieee80211_chanctx_conf *conf; 3246 struct ieee80211_chanctx *chanctx; 3247 u32 changed = 0; 3248 int err; 3249 3250 sdata_assert_lock(sdata); 3251 lockdep_assert_held(&local->mtx); 3252 3253 if (!list_empty(&local->roc_list) || local->scanning) 3254 return -EBUSY; 3255 3256 if (sdata->wdev.cac_started) 3257 return -EBUSY; 3258 3259 if (cfg80211_chandef_identical(¶ms->chandef, 3260 &sdata->vif.bss_conf.chandef)) 3261 return -EINVAL; 3262 3263 /* don't allow another channel switch if one is already active. */ 3264 if (sdata->vif.csa_active) 3265 return -EBUSY; 3266 3267 mutex_lock(&local->chanctx_mtx); 3268 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3269 lockdep_is_held(&local->chanctx_mtx)); 3270 if (!conf) { 3271 err = -EBUSY; 3272 goto out; 3273 } 3274 3275 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3276 3277 ch_switch.timestamp = 0; 3278 ch_switch.device_timestamp = 0; 3279 ch_switch.block_tx = params->block_tx; 3280 ch_switch.chandef = params->chandef; 3281 ch_switch.count = params->count; 3282 3283 err = drv_pre_channel_switch(sdata, &ch_switch); 3284 if (err) 3285 goto out; 3286 3287 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3288 chanctx->mode, 3289 params->radar_required); 3290 if (err) 3291 goto out; 3292 3293 /* if reservation is invalid then this will fail */ 3294 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3295 if (err) { 3296 ieee80211_vif_unreserve_chanctx(sdata); 3297 goto out; 3298 } 3299 3300 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3301 if (err) { 3302 ieee80211_vif_unreserve_chanctx(sdata); 3303 goto out; 3304 } 3305 3306 sdata->csa_chandef = params->chandef; 3307 sdata->csa_block_tx = params->block_tx; 3308 sdata->vif.csa_active = true; 3309 3310 if (sdata->csa_block_tx) 3311 ieee80211_stop_vif_queues(local, sdata, 3312 IEEE80211_QUEUE_STOP_REASON_CSA); 3313 3314 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3315 params->count); 3316 3317 if (changed) { 3318 ieee80211_bss_info_change_notify(sdata, changed); 3319 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3320 } else { 3321 /* if the beacon didn't change, we can finalize immediately */ 3322 ieee80211_csa_finalize(sdata); 3323 } 3324 3325 out: 3326 mutex_unlock(&local->chanctx_mtx); 3327 return err; 3328 } 3329 3330 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3331 struct cfg80211_csa_settings *params) 3332 { 3333 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3334 struct ieee80211_local *local = sdata->local; 3335 int err; 3336 3337 mutex_lock(&local->mtx); 3338 err = __ieee80211_channel_switch(wiphy, dev, params); 3339 mutex_unlock(&local->mtx); 3340 3341 return err; 3342 } 3343 3344 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3345 { 3346 lockdep_assert_held(&local->mtx); 3347 3348 local->roc_cookie_counter++; 3349 3350 /* wow, you wrapped 64 bits ... more likely a bug */ 3351 if (WARN_ON(local->roc_cookie_counter == 0)) 3352 local->roc_cookie_counter++; 3353 3354 return local->roc_cookie_counter; 3355 } 3356 3357 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3358 u64 *cookie, gfp_t gfp) 3359 { 3360 unsigned long spin_flags; 3361 struct sk_buff *ack_skb; 3362 int id; 3363 3364 ack_skb = skb_copy(skb, gfp); 3365 if (!ack_skb) 3366 return -ENOMEM; 3367 3368 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3369 id = idr_alloc(&local->ack_status_frames, ack_skb, 3370 1, 0x10000, GFP_ATOMIC); 3371 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3372 3373 if (id < 0) { 3374 kfree_skb(ack_skb); 3375 return -ENOMEM; 3376 } 3377 3378 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3379 3380 *cookie = ieee80211_mgmt_tx_cookie(local); 3381 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3382 3383 return 0; 3384 } 3385 3386 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3387 struct wireless_dev *wdev, 3388 u16 frame_type, bool reg) 3389 { 3390 struct ieee80211_local *local = wiphy_priv(wiphy); 3391 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3392 3393 switch (frame_type) { 3394 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3395 if (reg) { 3396 local->probe_req_reg++; 3397 sdata->vif.probe_req_reg++; 3398 } else { 3399 if (local->probe_req_reg) 3400 local->probe_req_reg--; 3401 3402 if (sdata->vif.probe_req_reg) 3403 sdata->vif.probe_req_reg--; 3404 } 3405 3406 if (!local->open_count) 3407 break; 3408 3409 if (sdata->vif.probe_req_reg == 1) 3410 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3411 FIF_PROBE_REQ); 3412 else if (sdata->vif.probe_req_reg == 0) 3413 drv_config_iface_filter(local, sdata, 0, 3414 FIF_PROBE_REQ); 3415 3416 ieee80211_configure_filter(local); 3417 break; 3418 default: 3419 break; 3420 } 3421 } 3422 3423 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3424 { 3425 struct ieee80211_local *local = wiphy_priv(wiphy); 3426 3427 if (local->started) 3428 return -EOPNOTSUPP; 3429 3430 return drv_set_antenna(local, tx_ant, rx_ant); 3431 } 3432 3433 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3434 { 3435 struct ieee80211_local *local = wiphy_priv(wiphy); 3436 3437 return drv_get_antenna(local, tx_ant, rx_ant); 3438 } 3439 3440 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3441 struct net_device *dev, 3442 struct cfg80211_gtk_rekey_data *data) 3443 { 3444 struct ieee80211_local *local = wiphy_priv(wiphy); 3445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3446 3447 if (!local->ops->set_rekey_data) 3448 return -EOPNOTSUPP; 3449 3450 drv_set_rekey_data(local, sdata, data); 3451 3452 return 0; 3453 } 3454 3455 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3456 const u8 *peer, u64 *cookie) 3457 { 3458 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3459 struct ieee80211_local *local = sdata->local; 3460 struct ieee80211_qos_hdr *nullfunc; 3461 struct sk_buff *skb; 3462 int size = sizeof(*nullfunc); 3463 __le16 fc; 3464 bool qos; 3465 struct ieee80211_tx_info *info; 3466 struct sta_info *sta; 3467 struct ieee80211_chanctx_conf *chanctx_conf; 3468 enum nl80211_band band; 3469 int ret; 3470 3471 /* the lock is needed to assign the cookie later */ 3472 mutex_lock(&local->mtx); 3473 3474 rcu_read_lock(); 3475 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3476 if (WARN_ON(!chanctx_conf)) { 3477 ret = -EINVAL; 3478 goto unlock; 3479 } 3480 band = chanctx_conf->def.chan->band; 3481 sta = sta_info_get_bss(sdata, peer); 3482 if (sta) { 3483 qos = sta->sta.wme; 3484 } else { 3485 ret = -ENOLINK; 3486 goto unlock; 3487 } 3488 3489 if (qos) { 3490 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3491 IEEE80211_STYPE_QOS_NULLFUNC | 3492 IEEE80211_FCTL_FROMDS); 3493 } else { 3494 size -= 2; 3495 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3496 IEEE80211_STYPE_NULLFUNC | 3497 IEEE80211_FCTL_FROMDS); 3498 } 3499 3500 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3501 if (!skb) { 3502 ret = -ENOMEM; 3503 goto unlock; 3504 } 3505 3506 skb->dev = dev; 3507 3508 skb_reserve(skb, local->hw.extra_tx_headroom); 3509 3510 nullfunc = skb_put(skb, size); 3511 nullfunc->frame_control = fc; 3512 nullfunc->duration_id = 0; 3513 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3514 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3515 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3516 nullfunc->seq_ctrl = 0; 3517 3518 info = IEEE80211_SKB_CB(skb); 3519 3520 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3521 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3522 info->band = band; 3523 3524 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3525 skb->priority = 7; 3526 if (qos) 3527 nullfunc->qos_ctrl = cpu_to_le16(7); 3528 3529 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3530 if (ret) { 3531 kfree_skb(skb); 3532 goto unlock; 3533 } 3534 3535 local_bh_disable(); 3536 ieee80211_xmit(sdata, sta, skb, 0); 3537 local_bh_enable(); 3538 3539 ret = 0; 3540 unlock: 3541 rcu_read_unlock(); 3542 mutex_unlock(&local->mtx); 3543 3544 return ret; 3545 } 3546 3547 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3548 struct wireless_dev *wdev, 3549 struct cfg80211_chan_def *chandef) 3550 { 3551 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3552 struct ieee80211_local *local = wiphy_priv(wiphy); 3553 struct ieee80211_chanctx_conf *chanctx_conf; 3554 int ret = -ENODATA; 3555 3556 rcu_read_lock(); 3557 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3558 if (chanctx_conf) { 3559 *chandef = sdata->vif.bss_conf.chandef; 3560 ret = 0; 3561 } else if (local->open_count > 0 && 3562 local->open_count == local->monitors && 3563 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3564 if (local->use_chanctx) 3565 *chandef = local->monitor_chandef; 3566 else 3567 *chandef = local->_oper_chandef; 3568 ret = 0; 3569 } 3570 rcu_read_unlock(); 3571 3572 return ret; 3573 } 3574 3575 #ifdef CONFIG_PM 3576 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3577 { 3578 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3579 } 3580 #endif 3581 3582 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3583 struct net_device *dev, 3584 struct cfg80211_qos_map *qos_map) 3585 { 3586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3587 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3588 3589 if (qos_map) { 3590 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3591 if (!new_qos_map) 3592 return -ENOMEM; 3593 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3594 } else { 3595 /* A NULL qos_map was passed to disable QoS mapping */ 3596 new_qos_map = NULL; 3597 } 3598 3599 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3600 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3601 if (old_qos_map) 3602 kfree_rcu(old_qos_map, rcu_head); 3603 3604 return 0; 3605 } 3606 3607 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3608 struct net_device *dev, 3609 struct cfg80211_chan_def *chandef) 3610 { 3611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3612 int ret; 3613 u32 changed = 0; 3614 3615 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3616 if (ret == 0) 3617 ieee80211_bss_info_change_notify(sdata, changed); 3618 3619 return ret; 3620 } 3621 3622 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3623 u8 tsid, const u8 *peer, u8 up, 3624 u16 admitted_time) 3625 { 3626 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3627 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3628 int ac = ieee802_1d_to_ac[up]; 3629 3630 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3631 return -EOPNOTSUPP; 3632 3633 if (!(sdata->wmm_acm & BIT(up))) 3634 return -EINVAL; 3635 3636 if (ifmgd->tx_tspec[ac].admitted_time) 3637 return -EBUSY; 3638 3639 if (admitted_time) { 3640 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3641 ifmgd->tx_tspec[ac].tsid = tsid; 3642 ifmgd->tx_tspec[ac].up = up; 3643 } 3644 3645 return 0; 3646 } 3647 3648 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3649 u8 tsid, const u8 *peer) 3650 { 3651 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3652 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3653 struct ieee80211_local *local = wiphy_priv(wiphy); 3654 int ac; 3655 3656 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3657 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3658 3659 /* skip unused entries */ 3660 if (!tx_tspec->admitted_time) 3661 continue; 3662 3663 if (tx_tspec->tsid != tsid) 3664 continue; 3665 3666 /* due to this new packets will be reassigned to non-ACM ACs */ 3667 tx_tspec->up = -1; 3668 3669 /* Make sure that all packets have been sent to avoid to 3670 * restore the QoS params on packets that are still on the 3671 * queues. 3672 */ 3673 synchronize_net(); 3674 ieee80211_flush_queues(local, sdata, false); 3675 3676 /* restore the normal QoS parameters 3677 * (unconditionally to avoid races) 3678 */ 3679 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3680 tx_tspec->downgraded = false; 3681 ieee80211_sta_handle_tspec_ac_params(sdata); 3682 3683 /* finally clear all the data */ 3684 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3685 3686 return 0; 3687 } 3688 3689 return -ENOENT; 3690 } 3691 3692 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3693 u8 inst_id, 3694 enum nl80211_nan_func_term_reason reason, 3695 gfp_t gfp) 3696 { 3697 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3698 struct cfg80211_nan_func *func; 3699 u64 cookie; 3700 3701 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3702 return; 3703 3704 spin_lock_bh(&sdata->u.nan.func_lock); 3705 3706 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3707 if (WARN_ON(!func)) { 3708 spin_unlock_bh(&sdata->u.nan.func_lock); 3709 return; 3710 } 3711 3712 cookie = func->cookie; 3713 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3714 3715 spin_unlock_bh(&sdata->u.nan.func_lock); 3716 3717 cfg80211_free_nan_func(func); 3718 3719 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3720 reason, cookie, gfp); 3721 } 3722 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3723 3724 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3725 struct cfg80211_nan_match_params *match, 3726 gfp_t gfp) 3727 { 3728 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3729 struct cfg80211_nan_func *func; 3730 3731 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3732 return; 3733 3734 spin_lock_bh(&sdata->u.nan.func_lock); 3735 3736 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3737 if (WARN_ON(!func)) { 3738 spin_unlock_bh(&sdata->u.nan.func_lock); 3739 return; 3740 } 3741 match->cookie = func->cookie; 3742 3743 spin_unlock_bh(&sdata->u.nan.func_lock); 3744 3745 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3746 } 3747 EXPORT_SYMBOL(ieee80211_nan_func_match); 3748 3749 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3750 struct net_device *dev, 3751 const bool enabled) 3752 { 3753 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3754 3755 sdata->u.ap.multicast_to_unicast = enabled; 3756 3757 return 0; 3758 } 3759 3760 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3761 struct txq_info *txqi) 3762 { 3763 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3764 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3765 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3766 } 3767 3768 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3769 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3770 txqstats->backlog_packets = txqi->tin.backlog_packets; 3771 } 3772 3773 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3774 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3775 txqstats->flows = txqi->tin.flows; 3776 } 3777 3778 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3779 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3780 txqstats->drops = txqi->cstats.drop_count; 3781 } 3782 3783 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3784 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3785 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3786 } 3787 3788 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3789 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3790 txqstats->overlimit = txqi->tin.overlimit; 3791 } 3792 3793 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3794 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3795 txqstats->collisions = txqi->tin.collisions; 3796 } 3797 3798 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3799 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3800 txqstats->tx_bytes = txqi->tin.tx_bytes; 3801 } 3802 3803 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3804 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3805 txqstats->tx_packets = txqi->tin.tx_packets; 3806 } 3807 } 3808 3809 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3810 struct wireless_dev *wdev, 3811 struct cfg80211_txq_stats *txqstats) 3812 { 3813 struct ieee80211_local *local = wiphy_priv(wiphy); 3814 struct ieee80211_sub_if_data *sdata; 3815 int ret = 0; 3816 3817 if (!local->ops->wake_tx_queue) 3818 return 1; 3819 3820 spin_lock_bh(&local->fq.lock); 3821 rcu_read_lock(); 3822 3823 if (wdev) { 3824 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3825 if (!sdata->vif.txq) { 3826 ret = 1; 3827 goto out; 3828 } 3829 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3830 } else { 3831 /* phy stats */ 3832 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3833 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3834 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3835 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3836 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3837 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3838 txqstats->backlog_packets = local->fq.backlog; 3839 txqstats->backlog_bytes = local->fq.memory_usage; 3840 txqstats->overlimit = local->fq.overlimit; 3841 txqstats->overmemory = local->fq.overmemory; 3842 txqstats->collisions = local->fq.collisions; 3843 txqstats->max_flows = local->fq.flows_cnt; 3844 } 3845 3846 out: 3847 rcu_read_unlock(); 3848 spin_unlock_bh(&local->fq.lock); 3849 3850 return ret; 3851 } 3852 3853 static int 3854 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3855 struct net_device *dev, 3856 struct cfg80211_ftm_responder_stats *ftm_stats) 3857 { 3858 struct ieee80211_local *local = wiphy_priv(wiphy); 3859 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3860 3861 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3862 } 3863 3864 static int 3865 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3866 struct cfg80211_pmsr_request *request) 3867 { 3868 struct ieee80211_local *local = wiphy_priv(wiphy); 3869 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3870 3871 return drv_start_pmsr(local, sdata, request); 3872 } 3873 3874 static void 3875 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3876 struct cfg80211_pmsr_request *request) 3877 { 3878 struct ieee80211_local *local = wiphy_priv(wiphy); 3879 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3880 3881 return drv_abort_pmsr(local, sdata, request); 3882 } 3883 3884 const struct cfg80211_ops mac80211_config_ops = { 3885 .add_virtual_intf = ieee80211_add_iface, 3886 .del_virtual_intf = ieee80211_del_iface, 3887 .change_virtual_intf = ieee80211_change_iface, 3888 .start_p2p_device = ieee80211_start_p2p_device, 3889 .stop_p2p_device = ieee80211_stop_p2p_device, 3890 .add_key = ieee80211_add_key, 3891 .del_key = ieee80211_del_key, 3892 .get_key = ieee80211_get_key, 3893 .set_default_key = ieee80211_config_default_key, 3894 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3895 .start_ap = ieee80211_start_ap, 3896 .change_beacon = ieee80211_change_beacon, 3897 .stop_ap = ieee80211_stop_ap, 3898 .add_station = ieee80211_add_station, 3899 .del_station = ieee80211_del_station, 3900 .change_station = ieee80211_change_station, 3901 .get_station = ieee80211_get_station, 3902 .dump_station = ieee80211_dump_station, 3903 .dump_survey = ieee80211_dump_survey, 3904 #ifdef CONFIG_MAC80211_MESH 3905 .add_mpath = ieee80211_add_mpath, 3906 .del_mpath = ieee80211_del_mpath, 3907 .change_mpath = ieee80211_change_mpath, 3908 .get_mpath = ieee80211_get_mpath, 3909 .dump_mpath = ieee80211_dump_mpath, 3910 .get_mpp = ieee80211_get_mpp, 3911 .dump_mpp = ieee80211_dump_mpp, 3912 .update_mesh_config = ieee80211_update_mesh_config, 3913 .get_mesh_config = ieee80211_get_mesh_config, 3914 .join_mesh = ieee80211_join_mesh, 3915 .leave_mesh = ieee80211_leave_mesh, 3916 #endif 3917 .join_ocb = ieee80211_join_ocb, 3918 .leave_ocb = ieee80211_leave_ocb, 3919 .change_bss = ieee80211_change_bss, 3920 .set_txq_params = ieee80211_set_txq_params, 3921 .set_monitor_channel = ieee80211_set_monitor_channel, 3922 .suspend = ieee80211_suspend, 3923 .resume = ieee80211_resume, 3924 .scan = ieee80211_scan, 3925 .abort_scan = ieee80211_abort_scan, 3926 .sched_scan_start = ieee80211_sched_scan_start, 3927 .sched_scan_stop = ieee80211_sched_scan_stop, 3928 .auth = ieee80211_auth, 3929 .assoc = ieee80211_assoc, 3930 .deauth = ieee80211_deauth, 3931 .disassoc = ieee80211_disassoc, 3932 .join_ibss = ieee80211_join_ibss, 3933 .leave_ibss = ieee80211_leave_ibss, 3934 .set_mcast_rate = ieee80211_set_mcast_rate, 3935 .set_wiphy_params = ieee80211_set_wiphy_params, 3936 .set_tx_power = ieee80211_set_tx_power, 3937 .get_tx_power = ieee80211_get_tx_power, 3938 .set_wds_peer = ieee80211_set_wds_peer, 3939 .rfkill_poll = ieee80211_rfkill_poll, 3940 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3941 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3942 .set_power_mgmt = ieee80211_set_power_mgmt, 3943 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3944 .remain_on_channel = ieee80211_remain_on_channel, 3945 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3946 .mgmt_tx = ieee80211_mgmt_tx, 3947 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3948 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3949 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3950 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3951 .set_antenna = ieee80211_set_antenna, 3952 .get_antenna = ieee80211_get_antenna, 3953 .set_rekey_data = ieee80211_set_rekey_data, 3954 .tdls_oper = ieee80211_tdls_oper, 3955 .tdls_mgmt = ieee80211_tdls_mgmt, 3956 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3957 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3958 .probe_client = ieee80211_probe_client, 3959 .set_noack_map = ieee80211_set_noack_map, 3960 #ifdef CONFIG_PM 3961 .set_wakeup = ieee80211_set_wakeup, 3962 #endif 3963 .get_channel = ieee80211_cfg_get_channel, 3964 .start_radar_detection = ieee80211_start_radar_detection, 3965 .channel_switch = ieee80211_channel_switch, 3966 .set_qos_map = ieee80211_set_qos_map, 3967 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3968 .add_tx_ts = ieee80211_add_tx_ts, 3969 .del_tx_ts = ieee80211_del_tx_ts, 3970 .start_nan = ieee80211_start_nan, 3971 .stop_nan = ieee80211_stop_nan, 3972 .nan_change_conf = ieee80211_nan_change_conf, 3973 .add_nan_func = ieee80211_add_nan_func, 3974 .del_nan_func = ieee80211_del_nan_func, 3975 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3976 .tx_control_port = ieee80211_tx_control_port, 3977 .get_txq_stats = ieee80211_get_txq_stats, 3978 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3979 .start_pmsr = ieee80211_start_pmsr, 3980 .abort_pmsr = ieee80211_abort_pmsr, 3981 }; 3982