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 1239 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1240 /* init at low value */ 1241 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1242 1243 break; 1244 case NL80211_PLINK_LISTEN: 1245 case NL80211_PLINK_BLOCKED: 1246 case NL80211_PLINK_OPN_SNT: 1247 case NL80211_PLINK_OPN_RCVD: 1248 case NL80211_PLINK_CNF_RCVD: 1249 case NL80211_PLINK_HOLDING: 1250 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1251 changed = mesh_plink_dec_estab_count(sdata); 1252 sta->mesh->plink_state = params->plink_state; 1253 1254 ieee80211_mps_sta_status_update(sta); 1255 changed |= ieee80211_mps_set_sta_local_pm(sta, 1256 NL80211_MESH_POWER_UNKNOWN); 1257 break; 1258 default: 1259 /* nothing */ 1260 break; 1261 } 1262 } 1263 1264 switch (params->plink_action) { 1265 case NL80211_PLINK_ACTION_NO_ACTION: 1266 /* nothing */ 1267 break; 1268 case NL80211_PLINK_ACTION_OPEN: 1269 changed |= mesh_plink_open(sta); 1270 break; 1271 case NL80211_PLINK_ACTION_BLOCK: 1272 changed |= mesh_plink_block(sta); 1273 break; 1274 } 1275 1276 if (params->local_pm) 1277 changed |= ieee80211_mps_set_sta_local_pm(sta, 1278 params->local_pm); 1279 1280 ieee80211_mbss_info_change_notify(sdata, changed); 1281 #endif 1282 } 1283 1284 static int sta_apply_parameters(struct ieee80211_local *local, 1285 struct sta_info *sta, 1286 struct station_parameters *params) 1287 { 1288 int ret = 0; 1289 struct ieee80211_supported_band *sband; 1290 struct ieee80211_sub_if_data *sdata = sta->sdata; 1291 u32 mask, set; 1292 1293 sband = ieee80211_get_sband(sdata); 1294 if (!sband) 1295 return -EINVAL; 1296 1297 mask = params->sta_flags_mask; 1298 set = params->sta_flags_set; 1299 1300 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1301 /* 1302 * In mesh mode, ASSOCIATED isn't part of the nl80211 1303 * API but must follow AUTHENTICATED for driver state. 1304 */ 1305 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1306 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1307 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1308 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1309 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1310 /* 1311 * TDLS -- everything follows authorized, but 1312 * only becoming authorized is possible, not 1313 * going back 1314 */ 1315 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1316 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1317 BIT(NL80211_STA_FLAG_ASSOCIATED); 1318 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1319 BIT(NL80211_STA_FLAG_ASSOCIATED); 1320 } 1321 } 1322 1323 if (mask & BIT(NL80211_STA_FLAG_WME) && 1324 local->hw.queues >= IEEE80211_NUM_ACS) 1325 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1326 1327 /* auth flags will be set later for TDLS, 1328 * and for unassociated stations that move to assocaited */ 1329 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1330 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1331 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1332 ret = sta_apply_auth_flags(local, sta, mask, set); 1333 if (ret) 1334 return ret; 1335 } 1336 1337 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1338 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1339 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1340 else 1341 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1342 } 1343 1344 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1345 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1346 if (set & BIT(NL80211_STA_FLAG_MFP)) 1347 set_sta_flag(sta, WLAN_STA_MFP); 1348 else 1349 clear_sta_flag(sta, WLAN_STA_MFP); 1350 } 1351 1352 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1353 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1354 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1355 else 1356 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1357 } 1358 1359 /* mark TDLS channel switch support, if the AP allows it */ 1360 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1361 !sdata->u.mgd.tdls_chan_switch_prohibited && 1362 params->ext_capab_len >= 4 && 1363 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1364 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1365 1366 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1367 !sdata->u.mgd.tdls_wider_bw_prohibited && 1368 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1369 params->ext_capab_len >= 8 && 1370 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1371 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1372 1373 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1374 sta->sta.uapsd_queues = params->uapsd_queues; 1375 sta->sta.max_sp = params->max_sp; 1376 } 1377 1378 /* The sender might not have sent the last bit, consider it to be 0 */ 1379 if (params->ext_capab_len >= 8) { 1380 u8 val = (params->ext_capab[7] & 1381 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1382 1383 /* we did get all the bits, take the MSB as well */ 1384 if (params->ext_capab_len >= 9) { 1385 u8 val_msb = params->ext_capab[8] & 1386 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1387 val_msb <<= 1; 1388 val |= val_msb; 1389 } 1390 1391 switch (val) { 1392 case 1: 1393 sta->sta.max_amsdu_subframes = 32; 1394 break; 1395 case 2: 1396 sta->sta.max_amsdu_subframes = 16; 1397 break; 1398 case 3: 1399 sta->sta.max_amsdu_subframes = 8; 1400 break; 1401 default: 1402 sta->sta.max_amsdu_subframes = 0; 1403 } 1404 } 1405 1406 /* 1407 * cfg80211 validates this (1-2007) and allows setting the AID 1408 * only when creating a new station entry 1409 */ 1410 if (params->aid) 1411 sta->sta.aid = params->aid; 1412 1413 /* 1414 * Some of the following updates would be racy if called on an 1415 * existing station, via ieee80211_change_station(). However, 1416 * all such changes are rejected by cfg80211 except for updates 1417 * changing the supported rates on an existing but not yet used 1418 * TDLS peer. 1419 */ 1420 1421 if (params->listen_interval >= 0) 1422 sta->listen_interval = params->listen_interval; 1423 1424 if (params->supported_rates) { 1425 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1426 sband, params->supported_rates, 1427 params->supported_rates_len, 1428 &sta->sta.supp_rates[sband->band]); 1429 } 1430 1431 if (params->ht_capa) 1432 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1433 params->ht_capa, sta); 1434 1435 /* VHT can override some HT caps such as the A-MSDU max length */ 1436 if (params->vht_capa) 1437 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1438 params->vht_capa, sta); 1439 1440 if (params->he_capa) 1441 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1442 (void *)params->he_capa, 1443 params->he_capa_len, sta); 1444 1445 if (params->opmode_notif_used) { 1446 /* returned value is only needed for rc update, but the 1447 * rc isn't initialized here yet, so ignore it 1448 */ 1449 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1450 sband->band); 1451 } 1452 1453 if (params->support_p2p_ps >= 0) 1454 sta->sta.support_p2p_ps = params->support_p2p_ps; 1455 1456 if (ieee80211_vif_is_mesh(&sdata->vif)) 1457 sta_apply_mesh_params(local, sta, params); 1458 1459 if (params->airtime_weight) 1460 sta->airtime_weight = params->airtime_weight; 1461 1462 /* set the STA state after all sta info from usermode has been set */ 1463 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1464 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1465 ret = sta_apply_auth_flags(local, sta, mask, set); 1466 if (ret) 1467 return ret; 1468 } 1469 1470 return 0; 1471 } 1472 1473 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1474 const u8 *mac, 1475 struct station_parameters *params) 1476 { 1477 struct ieee80211_local *local = wiphy_priv(wiphy); 1478 struct sta_info *sta; 1479 struct ieee80211_sub_if_data *sdata; 1480 int err; 1481 int layer2_update; 1482 1483 if (params->vlan) { 1484 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1485 1486 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1487 sdata->vif.type != NL80211_IFTYPE_AP) 1488 return -EINVAL; 1489 } else 1490 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1491 1492 if (ether_addr_equal(mac, sdata->vif.addr)) 1493 return -EINVAL; 1494 1495 if (is_multicast_ether_addr(mac)) 1496 return -EINVAL; 1497 1498 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1499 if (!sta) 1500 return -ENOMEM; 1501 1502 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1503 sta->sta.tdls = true; 1504 1505 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1506 !sdata->u.mgd.associated) 1507 return -EINVAL; 1508 1509 err = sta_apply_parameters(local, sta, params); 1510 if (err) { 1511 sta_info_free(local, sta); 1512 return err; 1513 } 1514 1515 /* 1516 * for TDLS and for unassociated station, rate control should be 1517 * initialized only when rates are known and station is marked 1518 * authorized/associated 1519 */ 1520 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1521 test_sta_flag(sta, WLAN_STA_ASSOC)) 1522 rate_control_rate_init(sta); 1523 1524 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1525 sdata->vif.type == NL80211_IFTYPE_AP; 1526 1527 err = sta_info_insert_rcu(sta); 1528 if (err) { 1529 rcu_read_unlock(); 1530 return err; 1531 } 1532 1533 if (layer2_update) 1534 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1535 1536 rcu_read_unlock(); 1537 1538 return 0; 1539 } 1540 1541 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1542 struct station_del_parameters *params) 1543 { 1544 struct ieee80211_sub_if_data *sdata; 1545 1546 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1547 1548 if (params->mac) 1549 return sta_info_destroy_addr_bss(sdata, params->mac); 1550 1551 sta_info_flush(sdata); 1552 return 0; 1553 } 1554 1555 static int ieee80211_change_station(struct wiphy *wiphy, 1556 struct net_device *dev, const u8 *mac, 1557 struct station_parameters *params) 1558 { 1559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1560 struct ieee80211_local *local = wiphy_priv(wiphy); 1561 struct sta_info *sta; 1562 struct ieee80211_sub_if_data *vlansdata; 1563 enum cfg80211_station_type statype; 1564 int err; 1565 1566 mutex_lock(&local->sta_mtx); 1567 1568 sta = sta_info_get_bss(sdata, mac); 1569 if (!sta) { 1570 err = -ENOENT; 1571 goto out_err; 1572 } 1573 1574 switch (sdata->vif.type) { 1575 case NL80211_IFTYPE_MESH_POINT: 1576 if (sdata->u.mesh.user_mpm) 1577 statype = CFG80211_STA_MESH_PEER_USER; 1578 else 1579 statype = CFG80211_STA_MESH_PEER_KERNEL; 1580 break; 1581 case NL80211_IFTYPE_ADHOC: 1582 statype = CFG80211_STA_IBSS; 1583 break; 1584 case NL80211_IFTYPE_STATION: 1585 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1586 statype = CFG80211_STA_AP_STA; 1587 break; 1588 } 1589 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1590 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1591 else 1592 statype = CFG80211_STA_TDLS_PEER_SETUP; 1593 break; 1594 case NL80211_IFTYPE_AP: 1595 case NL80211_IFTYPE_AP_VLAN: 1596 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1597 statype = CFG80211_STA_AP_CLIENT; 1598 else 1599 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1600 break; 1601 default: 1602 err = -EOPNOTSUPP; 1603 goto out_err; 1604 } 1605 1606 err = cfg80211_check_station_change(wiphy, params, statype); 1607 if (err) 1608 goto out_err; 1609 1610 if (params->vlan && params->vlan != sta->sdata->dev) { 1611 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1612 1613 if (params->vlan->ieee80211_ptr->use_4addr) { 1614 if (vlansdata->u.vlan.sta) { 1615 err = -EBUSY; 1616 goto out_err; 1617 } 1618 1619 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1620 __ieee80211_check_fast_rx_iface(vlansdata); 1621 } 1622 1623 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1624 sta->sdata->u.vlan.sta) 1625 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1626 1627 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1628 ieee80211_vif_dec_num_mcast(sta->sdata); 1629 1630 sta->sdata = vlansdata; 1631 ieee80211_check_fast_xmit(sta); 1632 1633 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1634 ieee80211_vif_inc_num_mcast(sta->sdata); 1635 1636 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1637 } 1638 1639 err = sta_apply_parameters(local, sta, params); 1640 if (err) 1641 goto out_err; 1642 1643 mutex_unlock(&local->sta_mtx); 1644 1645 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1646 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1647 sta->known_smps_mode != sta->sdata->bss->req_smps && 1648 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1649 sta_info_tx_streams(sta) != 1) { 1650 ht_dbg(sta->sdata, 1651 "%pM just authorized and MIMO capable - update SMPS\n", 1652 sta->sta.addr); 1653 ieee80211_send_smps_action(sta->sdata, 1654 sta->sdata->bss->req_smps, 1655 sta->sta.addr, 1656 sta->sdata->vif.bss_conf.bssid); 1657 } 1658 1659 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1660 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1661 ieee80211_recalc_ps(local); 1662 ieee80211_recalc_ps_vif(sdata); 1663 } 1664 1665 return 0; 1666 out_err: 1667 mutex_unlock(&local->sta_mtx); 1668 return err; 1669 } 1670 1671 #ifdef CONFIG_MAC80211_MESH 1672 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1673 const u8 *dst, const u8 *next_hop) 1674 { 1675 struct ieee80211_sub_if_data *sdata; 1676 struct mesh_path *mpath; 1677 struct sta_info *sta; 1678 1679 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1680 1681 rcu_read_lock(); 1682 sta = sta_info_get(sdata, next_hop); 1683 if (!sta) { 1684 rcu_read_unlock(); 1685 return -ENOENT; 1686 } 1687 1688 mpath = mesh_path_add(sdata, dst); 1689 if (IS_ERR(mpath)) { 1690 rcu_read_unlock(); 1691 return PTR_ERR(mpath); 1692 } 1693 1694 mesh_path_fix_nexthop(mpath, sta); 1695 1696 rcu_read_unlock(); 1697 return 0; 1698 } 1699 1700 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1701 const u8 *dst) 1702 { 1703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1704 1705 if (dst) 1706 return mesh_path_del(sdata, dst); 1707 1708 mesh_path_flush_by_iface(sdata); 1709 return 0; 1710 } 1711 1712 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1713 const u8 *dst, const u8 *next_hop) 1714 { 1715 struct ieee80211_sub_if_data *sdata; 1716 struct mesh_path *mpath; 1717 struct sta_info *sta; 1718 1719 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1720 1721 rcu_read_lock(); 1722 1723 sta = sta_info_get(sdata, next_hop); 1724 if (!sta) { 1725 rcu_read_unlock(); 1726 return -ENOENT; 1727 } 1728 1729 mpath = mesh_path_lookup(sdata, dst); 1730 if (!mpath) { 1731 rcu_read_unlock(); 1732 return -ENOENT; 1733 } 1734 1735 mesh_path_fix_nexthop(mpath, sta); 1736 1737 rcu_read_unlock(); 1738 return 0; 1739 } 1740 1741 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1742 struct mpath_info *pinfo) 1743 { 1744 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1745 1746 if (next_hop_sta) 1747 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1748 else 1749 eth_zero_addr(next_hop); 1750 1751 memset(pinfo, 0, sizeof(*pinfo)); 1752 1753 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1754 1755 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1756 MPATH_INFO_SN | 1757 MPATH_INFO_METRIC | 1758 MPATH_INFO_EXPTIME | 1759 MPATH_INFO_DISCOVERY_TIMEOUT | 1760 MPATH_INFO_DISCOVERY_RETRIES | 1761 MPATH_INFO_FLAGS | 1762 MPATH_INFO_HOP_COUNT | 1763 MPATH_INFO_PATH_CHANGE; 1764 1765 pinfo->frame_qlen = mpath->frame_queue.qlen; 1766 pinfo->sn = mpath->sn; 1767 pinfo->metric = mpath->metric; 1768 if (time_before(jiffies, mpath->exp_time)) 1769 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1770 pinfo->discovery_timeout = 1771 jiffies_to_msecs(mpath->discovery_timeout); 1772 pinfo->discovery_retries = mpath->discovery_retries; 1773 if (mpath->flags & MESH_PATH_ACTIVE) 1774 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1775 if (mpath->flags & MESH_PATH_RESOLVING) 1776 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1777 if (mpath->flags & MESH_PATH_SN_VALID) 1778 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1779 if (mpath->flags & MESH_PATH_FIXED) 1780 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1781 if (mpath->flags & MESH_PATH_RESOLVED) 1782 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1783 pinfo->hop_count = mpath->hop_count; 1784 pinfo->path_change_count = mpath->path_change_count; 1785 } 1786 1787 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1788 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1789 1790 { 1791 struct ieee80211_sub_if_data *sdata; 1792 struct mesh_path *mpath; 1793 1794 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1795 1796 rcu_read_lock(); 1797 mpath = mesh_path_lookup(sdata, dst); 1798 if (!mpath) { 1799 rcu_read_unlock(); 1800 return -ENOENT; 1801 } 1802 memcpy(dst, mpath->dst, ETH_ALEN); 1803 mpath_set_pinfo(mpath, next_hop, pinfo); 1804 rcu_read_unlock(); 1805 return 0; 1806 } 1807 1808 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1809 int idx, u8 *dst, u8 *next_hop, 1810 struct mpath_info *pinfo) 1811 { 1812 struct ieee80211_sub_if_data *sdata; 1813 struct mesh_path *mpath; 1814 1815 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1816 1817 rcu_read_lock(); 1818 mpath = mesh_path_lookup_by_idx(sdata, idx); 1819 if (!mpath) { 1820 rcu_read_unlock(); 1821 return -ENOENT; 1822 } 1823 memcpy(dst, mpath->dst, ETH_ALEN); 1824 mpath_set_pinfo(mpath, next_hop, pinfo); 1825 rcu_read_unlock(); 1826 return 0; 1827 } 1828 1829 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1830 struct mpath_info *pinfo) 1831 { 1832 memset(pinfo, 0, sizeof(*pinfo)); 1833 memcpy(mpp, mpath->mpp, ETH_ALEN); 1834 1835 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1836 } 1837 1838 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1839 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1840 1841 { 1842 struct ieee80211_sub_if_data *sdata; 1843 struct mesh_path *mpath; 1844 1845 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1846 1847 rcu_read_lock(); 1848 mpath = mpp_path_lookup(sdata, dst); 1849 if (!mpath) { 1850 rcu_read_unlock(); 1851 return -ENOENT; 1852 } 1853 memcpy(dst, mpath->dst, ETH_ALEN); 1854 mpp_set_pinfo(mpath, mpp, pinfo); 1855 rcu_read_unlock(); 1856 return 0; 1857 } 1858 1859 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1860 int idx, u8 *dst, u8 *mpp, 1861 struct mpath_info *pinfo) 1862 { 1863 struct ieee80211_sub_if_data *sdata; 1864 struct mesh_path *mpath; 1865 1866 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1867 1868 rcu_read_lock(); 1869 mpath = mpp_path_lookup_by_idx(sdata, idx); 1870 if (!mpath) { 1871 rcu_read_unlock(); 1872 return -ENOENT; 1873 } 1874 memcpy(dst, mpath->dst, ETH_ALEN); 1875 mpp_set_pinfo(mpath, mpp, pinfo); 1876 rcu_read_unlock(); 1877 return 0; 1878 } 1879 1880 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1881 struct net_device *dev, 1882 struct mesh_config *conf) 1883 { 1884 struct ieee80211_sub_if_data *sdata; 1885 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1886 1887 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1888 return 0; 1889 } 1890 1891 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1892 { 1893 return (mask >> (parm-1)) & 0x1; 1894 } 1895 1896 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1897 const struct mesh_setup *setup) 1898 { 1899 u8 *new_ie; 1900 const u8 *old_ie; 1901 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1902 struct ieee80211_sub_if_data, u.mesh); 1903 1904 /* allocate information elements */ 1905 new_ie = NULL; 1906 old_ie = ifmsh->ie; 1907 1908 if (setup->ie_len) { 1909 new_ie = kmemdup(setup->ie, setup->ie_len, 1910 GFP_KERNEL); 1911 if (!new_ie) 1912 return -ENOMEM; 1913 } 1914 ifmsh->ie_len = setup->ie_len; 1915 ifmsh->ie = new_ie; 1916 kfree(old_ie); 1917 1918 /* now copy the rest of the setup parameters */ 1919 ifmsh->mesh_id_len = setup->mesh_id_len; 1920 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1921 ifmsh->mesh_sp_id = setup->sync_method; 1922 ifmsh->mesh_pp_id = setup->path_sel_proto; 1923 ifmsh->mesh_pm_id = setup->path_metric; 1924 ifmsh->user_mpm = setup->user_mpm; 1925 ifmsh->mesh_auth_id = setup->auth_id; 1926 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1927 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1928 if (setup->is_authenticated) 1929 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1930 if (setup->is_secure) 1931 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1932 1933 /* mcast rate setting in Mesh Node */ 1934 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1935 sizeof(setup->mcast_rate)); 1936 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1937 1938 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1939 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1940 1941 return 0; 1942 } 1943 1944 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1945 struct net_device *dev, u32 mask, 1946 const struct mesh_config *nconf) 1947 { 1948 struct mesh_config *conf; 1949 struct ieee80211_sub_if_data *sdata; 1950 struct ieee80211_if_mesh *ifmsh; 1951 1952 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1953 ifmsh = &sdata->u.mesh; 1954 1955 /* Set the config options which we are interested in setting */ 1956 conf = &(sdata->u.mesh.mshcfg); 1957 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1958 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1960 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1961 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1962 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1963 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1964 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1965 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1966 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1967 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1968 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1969 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1970 conf->element_ttl = nconf->element_ttl; 1971 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1972 if (ifmsh->user_mpm) 1973 return -EBUSY; 1974 conf->auto_open_plinks = nconf->auto_open_plinks; 1975 } 1976 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1977 conf->dot11MeshNbrOffsetMaxNeighbor = 1978 nconf->dot11MeshNbrOffsetMaxNeighbor; 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1980 conf->dot11MeshHWMPmaxPREQretries = 1981 nconf->dot11MeshHWMPmaxPREQretries; 1982 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1983 conf->path_refresh_time = nconf->path_refresh_time; 1984 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1985 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1986 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1987 conf->dot11MeshHWMPactivePathTimeout = 1988 nconf->dot11MeshHWMPactivePathTimeout; 1989 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1990 conf->dot11MeshHWMPpreqMinInterval = 1991 nconf->dot11MeshHWMPpreqMinInterval; 1992 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1993 conf->dot11MeshHWMPperrMinInterval = 1994 nconf->dot11MeshHWMPperrMinInterval; 1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1996 mask)) 1997 conf->dot11MeshHWMPnetDiameterTraversalTime = 1998 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1999 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2000 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2001 ieee80211_mesh_root_setup(ifmsh); 2002 } 2003 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2004 /* our current gate announcement implementation rides on root 2005 * announcements, so require this ifmsh to also be a root node 2006 * */ 2007 if (nconf->dot11MeshGateAnnouncementProtocol && 2008 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2009 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2010 ieee80211_mesh_root_setup(ifmsh); 2011 } 2012 conf->dot11MeshGateAnnouncementProtocol = 2013 nconf->dot11MeshGateAnnouncementProtocol; 2014 } 2015 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2016 conf->dot11MeshHWMPRannInterval = 2017 nconf->dot11MeshHWMPRannInterval; 2018 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2019 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2020 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2021 /* our RSSI threshold implementation is supported only for 2022 * devices that report signal in dBm. 2023 */ 2024 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2025 return -ENOTSUPP; 2026 conf->rssi_threshold = nconf->rssi_threshold; 2027 } 2028 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2029 conf->ht_opmode = nconf->ht_opmode; 2030 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2031 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2032 } 2033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2034 conf->dot11MeshHWMPactivePathToRootTimeout = 2035 nconf->dot11MeshHWMPactivePathToRootTimeout; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2037 conf->dot11MeshHWMProotInterval = 2038 nconf->dot11MeshHWMProotInterval; 2039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2040 conf->dot11MeshHWMPconfirmationInterval = 2041 nconf->dot11MeshHWMPconfirmationInterval; 2042 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2043 conf->power_mode = nconf->power_mode; 2044 ieee80211_mps_local_status_update(sdata); 2045 } 2046 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2047 conf->dot11MeshAwakeWindowDuration = 2048 nconf->dot11MeshAwakeWindowDuration; 2049 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2050 conf->plink_timeout = nconf->plink_timeout; 2051 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2052 conf->dot11MeshConnectedToMeshGate = 2053 nconf->dot11MeshConnectedToMeshGate; 2054 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2055 return 0; 2056 } 2057 2058 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2059 const struct mesh_config *conf, 2060 const struct mesh_setup *setup) 2061 { 2062 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2063 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2064 int err; 2065 2066 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2067 err = copy_mesh_setup(ifmsh, setup); 2068 if (err) 2069 return err; 2070 2071 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2072 2073 /* can mesh use other SMPS modes? */ 2074 sdata->smps_mode = IEEE80211_SMPS_OFF; 2075 sdata->needed_rx_chains = sdata->local->rx_chains; 2076 2077 mutex_lock(&sdata->local->mtx); 2078 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2079 IEEE80211_CHANCTX_SHARED); 2080 mutex_unlock(&sdata->local->mtx); 2081 if (err) 2082 return err; 2083 2084 return ieee80211_start_mesh(sdata); 2085 } 2086 2087 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2088 { 2089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2090 2091 ieee80211_stop_mesh(sdata); 2092 mutex_lock(&sdata->local->mtx); 2093 ieee80211_vif_release_channel(sdata); 2094 mutex_unlock(&sdata->local->mtx); 2095 2096 return 0; 2097 } 2098 #endif 2099 2100 static int ieee80211_change_bss(struct wiphy *wiphy, 2101 struct net_device *dev, 2102 struct bss_parameters *params) 2103 { 2104 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2105 struct ieee80211_supported_band *sband; 2106 u32 changed = 0; 2107 2108 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2109 return -ENOENT; 2110 2111 sband = ieee80211_get_sband(sdata); 2112 if (!sband) 2113 return -EINVAL; 2114 2115 if (params->use_cts_prot >= 0) { 2116 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2117 changed |= BSS_CHANGED_ERP_CTS_PROT; 2118 } 2119 if (params->use_short_preamble >= 0) { 2120 sdata->vif.bss_conf.use_short_preamble = 2121 params->use_short_preamble; 2122 changed |= BSS_CHANGED_ERP_PREAMBLE; 2123 } 2124 2125 if (!sdata->vif.bss_conf.use_short_slot && 2126 sband->band == NL80211_BAND_5GHZ) { 2127 sdata->vif.bss_conf.use_short_slot = true; 2128 changed |= BSS_CHANGED_ERP_SLOT; 2129 } 2130 2131 if (params->use_short_slot_time >= 0) { 2132 sdata->vif.bss_conf.use_short_slot = 2133 params->use_short_slot_time; 2134 changed |= BSS_CHANGED_ERP_SLOT; 2135 } 2136 2137 if (params->basic_rates) { 2138 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2139 wiphy->bands[sband->band], 2140 params->basic_rates, 2141 params->basic_rates_len, 2142 &sdata->vif.bss_conf.basic_rates); 2143 changed |= BSS_CHANGED_BASIC_RATES; 2144 ieee80211_check_rate_mask(sdata); 2145 } 2146 2147 if (params->ap_isolate >= 0) { 2148 if (params->ap_isolate) 2149 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2150 else 2151 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2152 ieee80211_check_fast_rx_iface(sdata); 2153 } 2154 2155 if (params->ht_opmode >= 0) { 2156 sdata->vif.bss_conf.ht_operation_mode = 2157 (u16) params->ht_opmode; 2158 changed |= BSS_CHANGED_HT; 2159 } 2160 2161 if (params->p2p_ctwindow >= 0) { 2162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2163 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2164 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2165 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2166 changed |= BSS_CHANGED_P2P_PS; 2167 } 2168 2169 if (params->p2p_opp_ps > 0) { 2170 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2171 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2172 changed |= BSS_CHANGED_P2P_PS; 2173 } else if (params->p2p_opp_ps == 0) { 2174 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2175 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2176 changed |= BSS_CHANGED_P2P_PS; 2177 } 2178 2179 ieee80211_bss_info_change_notify(sdata, changed); 2180 2181 return 0; 2182 } 2183 2184 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2185 struct net_device *dev, 2186 struct ieee80211_txq_params *params) 2187 { 2188 struct ieee80211_local *local = wiphy_priv(wiphy); 2189 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2190 struct ieee80211_tx_queue_params p; 2191 2192 if (!local->ops->conf_tx) 2193 return -EOPNOTSUPP; 2194 2195 if (local->hw.queues < IEEE80211_NUM_ACS) 2196 return -EOPNOTSUPP; 2197 2198 memset(&p, 0, sizeof(p)); 2199 p.aifs = params->aifs; 2200 p.cw_max = params->cwmax; 2201 p.cw_min = params->cwmin; 2202 p.txop = params->txop; 2203 2204 /* 2205 * Setting tx queue params disables u-apsd because it's only 2206 * called in master mode. 2207 */ 2208 p.uapsd = false; 2209 2210 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2211 2212 sdata->tx_conf[params->ac] = p; 2213 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2214 wiphy_debug(local->hw.wiphy, 2215 "failed to set TX queue parameters for AC %d\n", 2216 params->ac); 2217 return -EINVAL; 2218 } 2219 2220 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2221 2222 return 0; 2223 } 2224 2225 #ifdef CONFIG_PM 2226 static int ieee80211_suspend(struct wiphy *wiphy, 2227 struct cfg80211_wowlan *wowlan) 2228 { 2229 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2230 } 2231 2232 static int ieee80211_resume(struct wiphy *wiphy) 2233 { 2234 return __ieee80211_resume(wiphy_priv(wiphy)); 2235 } 2236 #else 2237 #define ieee80211_suspend NULL 2238 #define ieee80211_resume NULL 2239 #endif 2240 2241 static int ieee80211_scan(struct wiphy *wiphy, 2242 struct cfg80211_scan_request *req) 2243 { 2244 struct ieee80211_sub_if_data *sdata; 2245 2246 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2247 2248 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2249 case NL80211_IFTYPE_STATION: 2250 case NL80211_IFTYPE_ADHOC: 2251 case NL80211_IFTYPE_MESH_POINT: 2252 case NL80211_IFTYPE_P2P_CLIENT: 2253 case NL80211_IFTYPE_P2P_DEVICE: 2254 break; 2255 case NL80211_IFTYPE_P2P_GO: 2256 if (sdata->local->ops->hw_scan) 2257 break; 2258 /* 2259 * FIXME: implement NoA while scanning in software, 2260 * for now fall through to allow scanning only when 2261 * beaconing hasn't been configured yet 2262 */ 2263 /* fall through */ 2264 case NL80211_IFTYPE_AP: 2265 /* 2266 * If the scan has been forced (and the driver supports 2267 * forcing), don't care about being beaconing already. 2268 * This will create problems to the attached stations (e.g. all 2269 * the frames sent while scanning on other channel will be 2270 * lost) 2271 */ 2272 if (sdata->u.ap.beacon && 2273 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2274 !(req->flags & NL80211_SCAN_FLAG_AP))) 2275 return -EOPNOTSUPP; 2276 break; 2277 case NL80211_IFTYPE_NAN: 2278 default: 2279 return -EOPNOTSUPP; 2280 } 2281 2282 return ieee80211_request_scan(sdata, req); 2283 } 2284 2285 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2286 { 2287 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2288 } 2289 2290 static int 2291 ieee80211_sched_scan_start(struct wiphy *wiphy, 2292 struct net_device *dev, 2293 struct cfg80211_sched_scan_request *req) 2294 { 2295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2296 2297 if (!sdata->local->ops->sched_scan_start) 2298 return -EOPNOTSUPP; 2299 2300 return ieee80211_request_sched_scan_start(sdata, req); 2301 } 2302 2303 static int 2304 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2305 u64 reqid) 2306 { 2307 struct ieee80211_local *local = wiphy_priv(wiphy); 2308 2309 if (!local->ops->sched_scan_stop) 2310 return -EOPNOTSUPP; 2311 2312 return ieee80211_request_sched_scan_stop(local); 2313 } 2314 2315 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2316 struct cfg80211_auth_request *req) 2317 { 2318 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2319 } 2320 2321 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2322 struct cfg80211_assoc_request *req) 2323 { 2324 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2325 } 2326 2327 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2328 struct cfg80211_deauth_request *req) 2329 { 2330 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2331 } 2332 2333 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2334 struct cfg80211_disassoc_request *req) 2335 { 2336 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2337 } 2338 2339 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2340 struct cfg80211_ibss_params *params) 2341 { 2342 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2343 } 2344 2345 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2346 { 2347 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2348 } 2349 2350 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2351 struct ocb_setup *setup) 2352 { 2353 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2354 } 2355 2356 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2357 { 2358 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2359 } 2360 2361 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2362 int rate[NUM_NL80211_BANDS]) 2363 { 2364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2365 2366 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2367 sizeof(int) * NUM_NL80211_BANDS); 2368 2369 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2370 2371 return 0; 2372 } 2373 2374 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2375 { 2376 struct ieee80211_local *local = wiphy_priv(wiphy); 2377 int err; 2378 2379 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2380 ieee80211_check_fast_xmit_all(local); 2381 2382 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2383 2384 if (err) { 2385 ieee80211_check_fast_xmit_all(local); 2386 return err; 2387 } 2388 } 2389 2390 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2391 (changed & WIPHY_PARAM_DYN_ACK)) { 2392 s16 coverage_class; 2393 2394 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2395 wiphy->coverage_class : -1; 2396 err = drv_set_coverage_class(local, coverage_class); 2397 2398 if (err) 2399 return err; 2400 } 2401 2402 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2403 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2404 2405 if (err) 2406 return err; 2407 } 2408 2409 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2410 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2411 return -EINVAL; 2412 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2413 } 2414 if (changed & WIPHY_PARAM_RETRY_LONG) { 2415 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2416 return -EINVAL; 2417 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2418 } 2419 if (changed & 2420 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2421 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2422 2423 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2424 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2425 WIPHY_PARAM_TXQ_QUANTUM)) 2426 ieee80211_txq_set_params(local); 2427 2428 return 0; 2429 } 2430 2431 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2432 struct wireless_dev *wdev, 2433 enum nl80211_tx_power_setting type, int mbm) 2434 { 2435 struct ieee80211_local *local = wiphy_priv(wiphy); 2436 struct ieee80211_sub_if_data *sdata; 2437 enum nl80211_tx_power_setting txp_type = type; 2438 bool update_txp_type = false; 2439 bool has_monitor = false; 2440 2441 if (wdev) { 2442 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2443 2444 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2445 sdata = rtnl_dereference(local->monitor_sdata); 2446 if (!sdata) 2447 return -EOPNOTSUPP; 2448 } 2449 2450 switch (type) { 2451 case NL80211_TX_POWER_AUTOMATIC: 2452 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2453 txp_type = NL80211_TX_POWER_LIMITED; 2454 break; 2455 case NL80211_TX_POWER_LIMITED: 2456 case NL80211_TX_POWER_FIXED: 2457 if (mbm < 0 || (mbm % 100)) 2458 return -EOPNOTSUPP; 2459 sdata->user_power_level = MBM_TO_DBM(mbm); 2460 break; 2461 } 2462 2463 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2464 update_txp_type = true; 2465 sdata->vif.bss_conf.txpower_type = txp_type; 2466 } 2467 2468 ieee80211_recalc_txpower(sdata, update_txp_type); 2469 2470 return 0; 2471 } 2472 2473 switch (type) { 2474 case NL80211_TX_POWER_AUTOMATIC: 2475 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2476 txp_type = NL80211_TX_POWER_LIMITED; 2477 break; 2478 case NL80211_TX_POWER_LIMITED: 2479 case NL80211_TX_POWER_FIXED: 2480 if (mbm < 0 || (mbm % 100)) 2481 return -EOPNOTSUPP; 2482 local->user_power_level = MBM_TO_DBM(mbm); 2483 break; 2484 } 2485 2486 mutex_lock(&local->iflist_mtx); 2487 list_for_each_entry(sdata, &local->interfaces, list) { 2488 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2489 has_monitor = true; 2490 continue; 2491 } 2492 sdata->user_power_level = local->user_power_level; 2493 if (txp_type != sdata->vif.bss_conf.txpower_type) 2494 update_txp_type = true; 2495 sdata->vif.bss_conf.txpower_type = txp_type; 2496 } 2497 list_for_each_entry(sdata, &local->interfaces, list) { 2498 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2499 continue; 2500 ieee80211_recalc_txpower(sdata, update_txp_type); 2501 } 2502 mutex_unlock(&local->iflist_mtx); 2503 2504 if (has_monitor) { 2505 sdata = rtnl_dereference(local->monitor_sdata); 2506 if (sdata) { 2507 sdata->user_power_level = local->user_power_level; 2508 if (txp_type != sdata->vif.bss_conf.txpower_type) 2509 update_txp_type = true; 2510 sdata->vif.bss_conf.txpower_type = txp_type; 2511 2512 ieee80211_recalc_txpower(sdata, update_txp_type); 2513 } 2514 } 2515 2516 return 0; 2517 } 2518 2519 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2520 struct wireless_dev *wdev, 2521 int *dbm) 2522 { 2523 struct ieee80211_local *local = wiphy_priv(wiphy); 2524 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2525 2526 if (local->ops->get_txpower) 2527 return drv_get_txpower(local, sdata, dbm); 2528 2529 if (!local->use_chanctx) 2530 *dbm = local->hw.conf.power_level; 2531 else 2532 *dbm = sdata->vif.bss_conf.txpower; 2533 2534 return 0; 2535 } 2536 2537 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2538 const u8 *addr) 2539 { 2540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2541 2542 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2543 2544 return 0; 2545 } 2546 2547 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2548 { 2549 struct ieee80211_local *local = wiphy_priv(wiphy); 2550 2551 drv_rfkill_poll(local); 2552 } 2553 2554 #ifdef CONFIG_NL80211_TESTMODE 2555 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2556 struct wireless_dev *wdev, 2557 void *data, int len) 2558 { 2559 struct ieee80211_local *local = wiphy_priv(wiphy); 2560 struct ieee80211_vif *vif = NULL; 2561 2562 if (!local->ops->testmode_cmd) 2563 return -EOPNOTSUPP; 2564 2565 if (wdev) { 2566 struct ieee80211_sub_if_data *sdata; 2567 2568 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2569 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2570 vif = &sdata->vif; 2571 } 2572 2573 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2574 } 2575 2576 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2577 struct sk_buff *skb, 2578 struct netlink_callback *cb, 2579 void *data, int len) 2580 { 2581 struct ieee80211_local *local = wiphy_priv(wiphy); 2582 2583 if (!local->ops->testmode_dump) 2584 return -EOPNOTSUPP; 2585 2586 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2587 } 2588 #endif 2589 2590 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2591 enum ieee80211_smps_mode smps_mode) 2592 { 2593 struct sta_info *sta; 2594 enum ieee80211_smps_mode old_req; 2595 2596 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2597 return -EINVAL; 2598 2599 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2600 return 0; 2601 2602 old_req = sdata->u.ap.req_smps; 2603 sdata->u.ap.req_smps = smps_mode; 2604 2605 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2606 if (old_req == smps_mode || 2607 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2608 return 0; 2609 2610 ht_dbg(sdata, 2611 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2612 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2613 2614 mutex_lock(&sdata->local->sta_mtx); 2615 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2616 /* 2617 * Only stations associated to our AP and 2618 * associated VLANs 2619 */ 2620 if (sta->sdata->bss != &sdata->u.ap) 2621 continue; 2622 2623 /* This station doesn't support MIMO - skip it */ 2624 if (sta_info_tx_streams(sta) == 1) 2625 continue; 2626 2627 /* 2628 * Don't wake up a STA just to send the action frame 2629 * unless we are getting more restrictive. 2630 */ 2631 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2632 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2633 smps_mode)) { 2634 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2635 sta->sta.addr); 2636 continue; 2637 } 2638 2639 /* 2640 * If the STA is not authorized, wait until it gets 2641 * authorized and the action frame will be sent then. 2642 */ 2643 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2644 continue; 2645 2646 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2647 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2648 sdata->vif.bss_conf.bssid); 2649 } 2650 mutex_unlock(&sdata->local->sta_mtx); 2651 2652 sdata->smps_mode = smps_mode; 2653 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2654 2655 return 0; 2656 } 2657 2658 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2659 enum ieee80211_smps_mode smps_mode) 2660 { 2661 const u8 *ap; 2662 enum ieee80211_smps_mode old_req; 2663 int err; 2664 struct sta_info *sta; 2665 bool tdls_peer_found = false; 2666 2667 lockdep_assert_held(&sdata->wdev.mtx); 2668 2669 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2670 return -EINVAL; 2671 2672 old_req = sdata->u.mgd.req_smps; 2673 sdata->u.mgd.req_smps = smps_mode; 2674 2675 if (old_req == smps_mode && 2676 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2677 return 0; 2678 2679 /* 2680 * If not associated, or current association is not an HT 2681 * association, there's no need to do anything, just store 2682 * the new value until we associate. 2683 */ 2684 if (!sdata->u.mgd.associated || 2685 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2686 return 0; 2687 2688 ap = sdata->u.mgd.associated->bssid; 2689 2690 rcu_read_lock(); 2691 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2692 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2693 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2694 continue; 2695 2696 tdls_peer_found = true; 2697 break; 2698 } 2699 rcu_read_unlock(); 2700 2701 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2702 if (tdls_peer_found || !sdata->u.mgd.powersave) 2703 smps_mode = IEEE80211_SMPS_OFF; 2704 else 2705 smps_mode = IEEE80211_SMPS_DYNAMIC; 2706 } 2707 2708 /* send SM PS frame to AP */ 2709 err = ieee80211_send_smps_action(sdata, smps_mode, 2710 ap, ap); 2711 if (err) 2712 sdata->u.mgd.req_smps = old_req; 2713 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2714 ieee80211_teardown_tdls_peers(sdata); 2715 2716 return err; 2717 } 2718 2719 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2720 bool enabled, int timeout) 2721 { 2722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2723 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2724 2725 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2726 return -EOPNOTSUPP; 2727 2728 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2729 return -EOPNOTSUPP; 2730 2731 if (enabled == sdata->u.mgd.powersave && 2732 timeout == local->dynamic_ps_forced_timeout) 2733 return 0; 2734 2735 sdata->u.mgd.powersave = enabled; 2736 local->dynamic_ps_forced_timeout = timeout; 2737 2738 /* no change, but if automatic follow powersave */ 2739 sdata_lock(sdata); 2740 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2741 sdata_unlock(sdata); 2742 2743 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2744 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2745 2746 ieee80211_recalc_ps(local); 2747 ieee80211_recalc_ps_vif(sdata); 2748 ieee80211_check_fast_rx_iface(sdata); 2749 2750 return 0; 2751 } 2752 2753 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2754 struct net_device *dev, 2755 s32 rssi_thold, u32 rssi_hyst) 2756 { 2757 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2758 struct ieee80211_vif *vif = &sdata->vif; 2759 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2760 2761 if (rssi_thold == bss_conf->cqm_rssi_thold && 2762 rssi_hyst == bss_conf->cqm_rssi_hyst) 2763 return 0; 2764 2765 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2766 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2767 return -EOPNOTSUPP; 2768 2769 bss_conf->cqm_rssi_thold = rssi_thold; 2770 bss_conf->cqm_rssi_hyst = rssi_hyst; 2771 bss_conf->cqm_rssi_low = 0; 2772 bss_conf->cqm_rssi_high = 0; 2773 sdata->u.mgd.last_cqm_event_signal = 0; 2774 2775 /* tell the driver upon association, unless already associated */ 2776 if (sdata->u.mgd.associated && 2777 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2778 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2779 2780 return 0; 2781 } 2782 2783 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2784 struct net_device *dev, 2785 s32 rssi_low, s32 rssi_high) 2786 { 2787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2788 struct ieee80211_vif *vif = &sdata->vif; 2789 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2790 2791 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2792 return -EOPNOTSUPP; 2793 2794 bss_conf->cqm_rssi_low = rssi_low; 2795 bss_conf->cqm_rssi_high = rssi_high; 2796 bss_conf->cqm_rssi_thold = 0; 2797 bss_conf->cqm_rssi_hyst = 0; 2798 sdata->u.mgd.last_cqm_event_signal = 0; 2799 2800 /* tell the driver upon association, unless already associated */ 2801 if (sdata->u.mgd.associated && 2802 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2803 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2804 2805 return 0; 2806 } 2807 2808 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2809 struct net_device *dev, 2810 const u8 *addr, 2811 const struct cfg80211_bitrate_mask *mask) 2812 { 2813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2814 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2815 int i, ret; 2816 2817 if (!ieee80211_sdata_running(sdata)) 2818 return -ENETDOWN; 2819 2820 /* 2821 * If active validate the setting and reject it if it doesn't leave 2822 * at least one basic rate usable, since we really have to be able 2823 * to send something, and if we're an AP we have to be able to do 2824 * so at a basic rate so that all clients can receive it. 2825 */ 2826 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2827 sdata->vif.bss_conf.chandef.chan) { 2828 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2829 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2830 2831 if (!(mask->control[band].legacy & basic_rates)) 2832 return -EINVAL; 2833 } 2834 2835 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2836 ret = drv_set_bitrate_mask(local, sdata, mask); 2837 if (ret) 2838 return ret; 2839 } 2840 2841 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2842 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2843 int j; 2844 2845 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2846 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2847 sizeof(mask->control[i].ht_mcs)); 2848 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2849 mask->control[i].vht_mcs, 2850 sizeof(mask->control[i].vht_mcs)); 2851 2852 sdata->rc_has_mcs_mask[i] = false; 2853 sdata->rc_has_vht_mcs_mask[i] = false; 2854 if (!sband) 2855 continue; 2856 2857 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2858 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2859 sdata->rc_has_mcs_mask[i] = true; 2860 break; 2861 } 2862 } 2863 2864 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2865 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2866 sdata->rc_has_vht_mcs_mask[i] = true; 2867 break; 2868 } 2869 } 2870 } 2871 2872 return 0; 2873 } 2874 2875 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2876 struct net_device *dev, 2877 struct cfg80211_chan_def *chandef, 2878 u32 cac_time_ms) 2879 { 2880 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2881 struct ieee80211_local *local = sdata->local; 2882 int err; 2883 2884 mutex_lock(&local->mtx); 2885 if (!list_empty(&local->roc_list) || local->scanning) { 2886 err = -EBUSY; 2887 goto out_unlock; 2888 } 2889 2890 /* whatever, but channel contexts should not complain about that one */ 2891 sdata->smps_mode = IEEE80211_SMPS_OFF; 2892 sdata->needed_rx_chains = local->rx_chains; 2893 2894 err = ieee80211_vif_use_channel(sdata, chandef, 2895 IEEE80211_CHANCTX_SHARED); 2896 if (err) 2897 goto out_unlock; 2898 2899 ieee80211_queue_delayed_work(&sdata->local->hw, 2900 &sdata->dfs_cac_timer_work, 2901 msecs_to_jiffies(cac_time_ms)); 2902 2903 out_unlock: 2904 mutex_unlock(&local->mtx); 2905 return err; 2906 } 2907 2908 static struct cfg80211_beacon_data * 2909 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2910 { 2911 struct cfg80211_beacon_data *new_beacon; 2912 u8 *pos; 2913 int len; 2914 2915 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2916 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2917 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2918 2919 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2920 if (!new_beacon) 2921 return NULL; 2922 2923 pos = (u8 *)(new_beacon + 1); 2924 if (beacon->head_len) { 2925 new_beacon->head_len = beacon->head_len; 2926 new_beacon->head = pos; 2927 memcpy(pos, beacon->head, beacon->head_len); 2928 pos += beacon->head_len; 2929 } 2930 if (beacon->tail_len) { 2931 new_beacon->tail_len = beacon->tail_len; 2932 new_beacon->tail = pos; 2933 memcpy(pos, beacon->tail, beacon->tail_len); 2934 pos += beacon->tail_len; 2935 } 2936 if (beacon->beacon_ies_len) { 2937 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2938 new_beacon->beacon_ies = pos; 2939 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2940 pos += beacon->beacon_ies_len; 2941 } 2942 if (beacon->proberesp_ies_len) { 2943 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2944 new_beacon->proberesp_ies = pos; 2945 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2946 pos += beacon->proberesp_ies_len; 2947 } 2948 if (beacon->assocresp_ies_len) { 2949 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2950 new_beacon->assocresp_ies = pos; 2951 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2952 pos += beacon->assocresp_ies_len; 2953 } 2954 if (beacon->probe_resp_len) { 2955 new_beacon->probe_resp_len = beacon->probe_resp_len; 2956 new_beacon->probe_resp = pos; 2957 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2958 pos += beacon->probe_resp_len; 2959 } 2960 2961 /* might copy -1, meaning no changes requested */ 2962 new_beacon->ftm_responder = beacon->ftm_responder; 2963 if (beacon->lci) { 2964 new_beacon->lci_len = beacon->lci_len; 2965 new_beacon->lci = pos; 2966 memcpy(pos, beacon->lci, beacon->lci_len); 2967 pos += beacon->lci_len; 2968 } 2969 if (beacon->civicloc) { 2970 new_beacon->civicloc_len = beacon->civicloc_len; 2971 new_beacon->civicloc = pos; 2972 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2973 pos += beacon->civicloc_len; 2974 } 2975 2976 return new_beacon; 2977 } 2978 2979 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2980 { 2981 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2982 2983 ieee80211_queue_work(&sdata->local->hw, 2984 &sdata->csa_finalize_work); 2985 } 2986 EXPORT_SYMBOL(ieee80211_csa_finish); 2987 2988 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2989 u32 *changed) 2990 { 2991 int err; 2992 2993 switch (sdata->vif.type) { 2994 case NL80211_IFTYPE_AP: 2995 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2996 NULL); 2997 kfree(sdata->u.ap.next_beacon); 2998 sdata->u.ap.next_beacon = NULL; 2999 3000 if (err < 0) 3001 return err; 3002 *changed |= err; 3003 break; 3004 case NL80211_IFTYPE_ADHOC: 3005 err = ieee80211_ibss_finish_csa(sdata); 3006 if (err < 0) 3007 return err; 3008 *changed |= err; 3009 break; 3010 #ifdef CONFIG_MAC80211_MESH 3011 case NL80211_IFTYPE_MESH_POINT: 3012 err = ieee80211_mesh_finish_csa(sdata); 3013 if (err < 0) 3014 return err; 3015 *changed |= err; 3016 break; 3017 #endif 3018 default: 3019 WARN_ON(1); 3020 return -EINVAL; 3021 } 3022 3023 return 0; 3024 } 3025 3026 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3027 { 3028 struct ieee80211_local *local = sdata->local; 3029 u32 changed = 0; 3030 int err; 3031 3032 sdata_assert_lock(sdata); 3033 lockdep_assert_held(&local->mtx); 3034 lockdep_assert_held(&local->chanctx_mtx); 3035 3036 /* 3037 * using reservation isn't immediate as it may be deferred until later 3038 * with multi-vif. once reservation is complete it will re-schedule the 3039 * work with no reserved_chanctx so verify chandef to check if it 3040 * completed successfully 3041 */ 3042 3043 if (sdata->reserved_chanctx) { 3044 /* 3045 * with multi-vif csa driver may call ieee80211_csa_finish() 3046 * many times while waiting for other interfaces to use their 3047 * reservations 3048 */ 3049 if (sdata->reserved_ready) 3050 return 0; 3051 3052 return ieee80211_vif_use_reserved_context(sdata); 3053 } 3054 3055 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3056 &sdata->csa_chandef)) 3057 return -EINVAL; 3058 3059 sdata->vif.csa_active = false; 3060 3061 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3062 if (err) 3063 return err; 3064 3065 ieee80211_bss_info_change_notify(sdata, changed); 3066 3067 if (sdata->csa_block_tx) { 3068 ieee80211_wake_vif_queues(local, sdata, 3069 IEEE80211_QUEUE_STOP_REASON_CSA); 3070 sdata->csa_block_tx = false; 3071 } 3072 3073 err = drv_post_channel_switch(sdata); 3074 if (err) 3075 return err; 3076 3077 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3078 3079 return 0; 3080 } 3081 3082 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3083 { 3084 if (__ieee80211_csa_finalize(sdata)) { 3085 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3086 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3087 GFP_KERNEL); 3088 } 3089 } 3090 3091 void ieee80211_csa_finalize_work(struct work_struct *work) 3092 { 3093 struct ieee80211_sub_if_data *sdata = 3094 container_of(work, struct ieee80211_sub_if_data, 3095 csa_finalize_work); 3096 struct ieee80211_local *local = sdata->local; 3097 3098 sdata_lock(sdata); 3099 mutex_lock(&local->mtx); 3100 mutex_lock(&local->chanctx_mtx); 3101 3102 /* AP might have been stopped while waiting for the lock. */ 3103 if (!sdata->vif.csa_active) 3104 goto unlock; 3105 3106 if (!ieee80211_sdata_running(sdata)) 3107 goto unlock; 3108 3109 ieee80211_csa_finalize(sdata); 3110 3111 unlock: 3112 mutex_unlock(&local->chanctx_mtx); 3113 mutex_unlock(&local->mtx); 3114 sdata_unlock(sdata); 3115 } 3116 3117 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3118 struct cfg80211_csa_settings *params, 3119 u32 *changed) 3120 { 3121 struct ieee80211_csa_settings csa = {}; 3122 int err; 3123 3124 switch (sdata->vif.type) { 3125 case NL80211_IFTYPE_AP: 3126 sdata->u.ap.next_beacon = 3127 cfg80211_beacon_dup(¶ms->beacon_after); 3128 if (!sdata->u.ap.next_beacon) 3129 return -ENOMEM; 3130 3131 /* 3132 * With a count of 0, we don't have to wait for any 3133 * TBTT before switching, so complete the CSA 3134 * immediately. In theory, with a count == 1 we 3135 * should delay the switch until just before the next 3136 * TBTT, but that would complicate things so we switch 3137 * immediately too. If we would delay the switch 3138 * until the next TBTT, we would have to set the probe 3139 * response here. 3140 * 3141 * TODO: A channel switch with count <= 1 without 3142 * sending a CSA action frame is kind of useless, 3143 * because the clients won't know we're changing 3144 * channels. The action frame must be implemented 3145 * either here or in the userspace. 3146 */ 3147 if (params->count <= 1) 3148 break; 3149 3150 if ((params->n_counter_offsets_beacon > 3151 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3152 (params->n_counter_offsets_presp > 3153 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3154 return -EINVAL; 3155 3156 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3157 csa.counter_offsets_presp = params->counter_offsets_presp; 3158 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3159 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3160 csa.count = params->count; 3161 3162 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3163 if (err < 0) { 3164 kfree(sdata->u.ap.next_beacon); 3165 return err; 3166 } 3167 *changed |= err; 3168 3169 break; 3170 case NL80211_IFTYPE_ADHOC: 3171 if (!sdata->vif.bss_conf.ibss_joined) 3172 return -EINVAL; 3173 3174 if (params->chandef.width != sdata->u.ibss.chandef.width) 3175 return -EINVAL; 3176 3177 switch (params->chandef.width) { 3178 case NL80211_CHAN_WIDTH_40: 3179 if (cfg80211_get_chandef_type(¶ms->chandef) != 3180 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3181 return -EINVAL; 3182 case NL80211_CHAN_WIDTH_5: 3183 case NL80211_CHAN_WIDTH_10: 3184 case NL80211_CHAN_WIDTH_20_NOHT: 3185 case NL80211_CHAN_WIDTH_20: 3186 break; 3187 default: 3188 return -EINVAL; 3189 } 3190 3191 /* changes into another band are not supported */ 3192 if (sdata->u.ibss.chandef.chan->band != 3193 params->chandef.chan->band) 3194 return -EINVAL; 3195 3196 /* see comments in the NL80211_IFTYPE_AP block */ 3197 if (params->count > 1) { 3198 err = ieee80211_ibss_csa_beacon(sdata, params); 3199 if (err < 0) 3200 return err; 3201 *changed |= err; 3202 } 3203 3204 ieee80211_send_action_csa(sdata, params); 3205 3206 break; 3207 #ifdef CONFIG_MAC80211_MESH 3208 case NL80211_IFTYPE_MESH_POINT: { 3209 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3210 3211 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3212 return -EINVAL; 3213 3214 /* changes into another band are not supported */ 3215 if (sdata->vif.bss_conf.chandef.chan->band != 3216 params->chandef.chan->band) 3217 return -EINVAL; 3218 3219 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3220 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3221 if (!ifmsh->pre_value) 3222 ifmsh->pre_value = 1; 3223 else 3224 ifmsh->pre_value++; 3225 } 3226 3227 /* see comments in the NL80211_IFTYPE_AP block */ 3228 if (params->count > 1) { 3229 err = ieee80211_mesh_csa_beacon(sdata, params); 3230 if (err < 0) { 3231 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3232 return err; 3233 } 3234 *changed |= err; 3235 } 3236 3237 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3238 ieee80211_send_action_csa(sdata, params); 3239 3240 break; 3241 } 3242 #endif 3243 default: 3244 return -EOPNOTSUPP; 3245 } 3246 3247 return 0; 3248 } 3249 3250 static int 3251 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3252 struct cfg80211_csa_settings *params) 3253 { 3254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3255 struct ieee80211_local *local = sdata->local; 3256 struct ieee80211_channel_switch ch_switch; 3257 struct ieee80211_chanctx_conf *conf; 3258 struct ieee80211_chanctx *chanctx; 3259 u32 changed = 0; 3260 int err; 3261 3262 sdata_assert_lock(sdata); 3263 lockdep_assert_held(&local->mtx); 3264 3265 if (!list_empty(&local->roc_list) || local->scanning) 3266 return -EBUSY; 3267 3268 if (sdata->wdev.cac_started) 3269 return -EBUSY; 3270 3271 if (cfg80211_chandef_identical(¶ms->chandef, 3272 &sdata->vif.bss_conf.chandef)) 3273 return -EINVAL; 3274 3275 /* don't allow another channel switch if one is already active. */ 3276 if (sdata->vif.csa_active) 3277 return -EBUSY; 3278 3279 mutex_lock(&local->chanctx_mtx); 3280 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3281 lockdep_is_held(&local->chanctx_mtx)); 3282 if (!conf) { 3283 err = -EBUSY; 3284 goto out; 3285 } 3286 3287 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3288 3289 ch_switch.timestamp = 0; 3290 ch_switch.device_timestamp = 0; 3291 ch_switch.block_tx = params->block_tx; 3292 ch_switch.chandef = params->chandef; 3293 ch_switch.count = params->count; 3294 3295 err = drv_pre_channel_switch(sdata, &ch_switch); 3296 if (err) 3297 goto out; 3298 3299 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3300 chanctx->mode, 3301 params->radar_required); 3302 if (err) 3303 goto out; 3304 3305 /* if reservation is invalid then this will fail */ 3306 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3307 if (err) { 3308 ieee80211_vif_unreserve_chanctx(sdata); 3309 goto out; 3310 } 3311 3312 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3313 if (err) { 3314 ieee80211_vif_unreserve_chanctx(sdata); 3315 goto out; 3316 } 3317 3318 sdata->csa_chandef = params->chandef; 3319 sdata->csa_block_tx = params->block_tx; 3320 sdata->vif.csa_active = true; 3321 3322 if (sdata->csa_block_tx) 3323 ieee80211_stop_vif_queues(local, sdata, 3324 IEEE80211_QUEUE_STOP_REASON_CSA); 3325 3326 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3327 params->count); 3328 3329 if (changed) { 3330 ieee80211_bss_info_change_notify(sdata, changed); 3331 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3332 } else { 3333 /* if the beacon didn't change, we can finalize immediately */ 3334 ieee80211_csa_finalize(sdata); 3335 } 3336 3337 out: 3338 mutex_unlock(&local->chanctx_mtx); 3339 return err; 3340 } 3341 3342 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3343 struct cfg80211_csa_settings *params) 3344 { 3345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3346 struct ieee80211_local *local = sdata->local; 3347 int err; 3348 3349 mutex_lock(&local->mtx); 3350 err = __ieee80211_channel_switch(wiphy, dev, params); 3351 mutex_unlock(&local->mtx); 3352 3353 return err; 3354 } 3355 3356 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3357 { 3358 lockdep_assert_held(&local->mtx); 3359 3360 local->roc_cookie_counter++; 3361 3362 /* wow, you wrapped 64 bits ... more likely a bug */ 3363 if (WARN_ON(local->roc_cookie_counter == 0)) 3364 local->roc_cookie_counter++; 3365 3366 return local->roc_cookie_counter; 3367 } 3368 3369 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3370 u64 *cookie, gfp_t gfp) 3371 { 3372 unsigned long spin_flags; 3373 struct sk_buff *ack_skb; 3374 int id; 3375 3376 ack_skb = skb_copy(skb, gfp); 3377 if (!ack_skb) 3378 return -ENOMEM; 3379 3380 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3381 id = idr_alloc(&local->ack_status_frames, ack_skb, 3382 1, 0x10000, GFP_ATOMIC); 3383 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3384 3385 if (id < 0) { 3386 kfree_skb(ack_skb); 3387 return -ENOMEM; 3388 } 3389 3390 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3391 3392 *cookie = ieee80211_mgmt_tx_cookie(local); 3393 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3394 3395 return 0; 3396 } 3397 3398 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3399 struct wireless_dev *wdev, 3400 u16 frame_type, bool reg) 3401 { 3402 struct ieee80211_local *local = wiphy_priv(wiphy); 3403 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3404 3405 switch (frame_type) { 3406 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3407 if (reg) { 3408 local->probe_req_reg++; 3409 sdata->vif.probe_req_reg++; 3410 } else { 3411 if (local->probe_req_reg) 3412 local->probe_req_reg--; 3413 3414 if (sdata->vif.probe_req_reg) 3415 sdata->vif.probe_req_reg--; 3416 } 3417 3418 if (!local->open_count) 3419 break; 3420 3421 if (sdata->vif.probe_req_reg == 1) 3422 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3423 FIF_PROBE_REQ); 3424 else if (sdata->vif.probe_req_reg == 0) 3425 drv_config_iface_filter(local, sdata, 0, 3426 FIF_PROBE_REQ); 3427 3428 ieee80211_configure_filter(local); 3429 break; 3430 default: 3431 break; 3432 } 3433 } 3434 3435 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3436 { 3437 struct ieee80211_local *local = wiphy_priv(wiphy); 3438 3439 if (local->started) 3440 return -EOPNOTSUPP; 3441 3442 return drv_set_antenna(local, tx_ant, rx_ant); 3443 } 3444 3445 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3446 { 3447 struct ieee80211_local *local = wiphy_priv(wiphy); 3448 3449 return drv_get_antenna(local, tx_ant, rx_ant); 3450 } 3451 3452 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3453 struct net_device *dev, 3454 struct cfg80211_gtk_rekey_data *data) 3455 { 3456 struct ieee80211_local *local = wiphy_priv(wiphy); 3457 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3458 3459 if (!local->ops->set_rekey_data) 3460 return -EOPNOTSUPP; 3461 3462 drv_set_rekey_data(local, sdata, data); 3463 3464 return 0; 3465 } 3466 3467 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3468 const u8 *peer, u64 *cookie) 3469 { 3470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3471 struct ieee80211_local *local = sdata->local; 3472 struct ieee80211_qos_hdr *nullfunc; 3473 struct sk_buff *skb; 3474 int size = sizeof(*nullfunc); 3475 __le16 fc; 3476 bool qos; 3477 struct ieee80211_tx_info *info; 3478 struct sta_info *sta; 3479 struct ieee80211_chanctx_conf *chanctx_conf; 3480 enum nl80211_band band; 3481 int ret; 3482 3483 /* the lock is needed to assign the cookie later */ 3484 mutex_lock(&local->mtx); 3485 3486 rcu_read_lock(); 3487 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3488 if (WARN_ON(!chanctx_conf)) { 3489 ret = -EINVAL; 3490 goto unlock; 3491 } 3492 band = chanctx_conf->def.chan->band; 3493 sta = sta_info_get_bss(sdata, peer); 3494 if (sta) { 3495 qos = sta->sta.wme; 3496 } else { 3497 ret = -ENOLINK; 3498 goto unlock; 3499 } 3500 3501 if (qos) { 3502 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3503 IEEE80211_STYPE_QOS_NULLFUNC | 3504 IEEE80211_FCTL_FROMDS); 3505 } else { 3506 size -= 2; 3507 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3508 IEEE80211_STYPE_NULLFUNC | 3509 IEEE80211_FCTL_FROMDS); 3510 } 3511 3512 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3513 if (!skb) { 3514 ret = -ENOMEM; 3515 goto unlock; 3516 } 3517 3518 skb->dev = dev; 3519 3520 skb_reserve(skb, local->hw.extra_tx_headroom); 3521 3522 nullfunc = skb_put(skb, size); 3523 nullfunc->frame_control = fc; 3524 nullfunc->duration_id = 0; 3525 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3526 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3527 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3528 nullfunc->seq_ctrl = 0; 3529 3530 info = IEEE80211_SKB_CB(skb); 3531 3532 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3533 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3534 info->band = band; 3535 3536 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3537 skb->priority = 7; 3538 if (qos) 3539 nullfunc->qos_ctrl = cpu_to_le16(7); 3540 3541 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3542 if (ret) { 3543 kfree_skb(skb); 3544 goto unlock; 3545 } 3546 3547 local_bh_disable(); 3548 ieee80211_xmit(sdata, sta, skb, 0); 3549 local_bh_enable(); 3550 3551 ret = 0; 3552 unlock: 3553 rcu_read_unlock(); 3554 mutex_unlock(&local->mtx); 3555 3556 return ret; 3557 } 3558 3559 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3560 struct wireless_dev *wdev, 3561 struct cfg80211_chan_def *chandef) 3562 { 3563 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3564 struct ieee80211_local *local = wiphy_priv(wiphy); 3565 struct ieee80211_chanctx_conf *chanctx_conf; 3566 int ret = -ENODATA; 3567 3568 rcu_read_lock(); 3569 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3570 if (chanctx_conf) { 3571 *chandef = sdata->vif.bss_conf.chandef; 3572 ret = 0; 3573 } else if (local->open_count > 0 && 3574 local->open_count == local->monitors && 3575 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3576 if (local->use_chanctx) 3577 *chandef = local->monitor_chandef; 3578 else 3579 *chandef = local->_oper_chandef; 3580 ret = 0; 3581 } 3582 rcu_read_unlock(); 3583 3584 return ret; 3585 } 3586 3587 #ifdef CONFIG_PM 3588 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3589 { 3590 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3591 } 3592 #endif 3593 3594 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3595 struct net_device *dev, 3596 struct cfg80211_qos_map *qos_map) 3597 { 3598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3599 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3600 3601 if (qos_map) { 3602 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3603 if (!new_qos_map) 3604 return -ENOMEM; 3605 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3606 } else { 3607 /* A NULL qos_map was passed to disable QoS mapping */ 3608 new_qos_map = NULL; 3609 } 3610 3611 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3612 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3613 if (old_qos_map) 3614 kfree_rcu(old_qos_map, rcu_head); 3615 3616 return 0; 3617 } 3618 3619 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3620 struct net_device *dev, 3621 struct cfg80211_chan_def *chandef) 3622 { 3623 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3624 int ret; 3625 u32 changed = 0; 3626 3627 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3628 if (ret == 0) 3629 ieee80211_bss_info_change_notify(sdata, changed); 3630 3631 return ret; 3632 } 3633 3634 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3635 u8 tsid, const u8 *peer, u8 up, 3636 u16 admitted_time) 3637 { 3638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3639 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3640 int ac = ieee802_1d_to_ac[up]; 3641 3642 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3643 return -EOPNOTSUPP; 3644 3645 if (!(sdata->wmm_acm & BIT(up))) 3646 return -EINVAL; 3647 3648 if (ifmgd->tx_tspec[ac].admitted_time) 3649 return -EBUSY; 3650 3651 if (admitted_time) { 3652 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3653 ifmgd->tx_tspec[ac].tsid = tsid; 3654 ifmgd->tx_tspec[ac].up = up; 3655 } 3656 3657 return 0; 3658 } 3659 3660 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3661 u8 tsid, const u8 *peer) 3662 { 3663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3664 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3665 struct ieee80211_local *local = wiphy_priv(wiphy); 3666 int ac; 3667 3668 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3669 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3670 3671 /* skip unused entries */ 3672 if (!tx_tspec->admitted_time) 3673 continue; 3674 3675 if (tx_tspec->tsid != tsid) 3676 continue; 3677 3678 /* due to this new packets will be reassigned to non-ACM ACs */ 3679 tx_tspec->up = -1; 3680 3681 /* Make sure that all packets have been sent to avoid to 3682 * restore the QoS params on packets that are still on the 3683 * queues. 3684 */ 3685 synchronize_net(); 3686 ieee80211_flush_queues(local, sdata, false); 3687 3688 /* restore the normal QoS parameters 3689 * (unconditionally to avoid races) 3690 */ 3691 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3692 tx_tspec->downgraded = false; 3693 ieee80211_sta_handle_tspec_ac_params(sdata); 3694 3695 /* finally clear all the data */ 3696 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3697 3698 return 0; 3699 } 3700 3701 return -ENOENT; 3702 } 3703 3704 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3705 u8 inst_id, 3706 enum nl80211_nan_func_term_reason reason, 3707 gfp_t gfp) 3708 { 3709 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3710 struct cfg80211_nan_func *func; 3711 u64 cookie; 3712 3713 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3714 return; 3715 3716 spin_lock_bh(&sdata->u.nan.func_lock); 3717 3718 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3719 if (WARN_ON(!func)) { 3720 spin_unlock_bh(&sdata->u.nan.func_lock); 3721 return; 3722 } 3723 3724 cookie = func->cookie; 3725 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3726 3727 spin_unlock_bh(&sdata->u.nan.func_lock); 3728 3729 cfg80211_free_nan_func(func); 3730 3731 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3732 reason, cookie, gfp); 3733 } 3734 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3735 3736 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3737 struct cfg80211_nan_match_params *match, 3738 gfp_t gfp) 3739 { 3740 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3741 struct cfg80211_nan_func *func; 3742 3743 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3744 return; 3745 3746 spin_lock_bh(&sdata->u.nan.func_lock); 3747 3748 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3749 if (WARN_ON(!func)) { 3750 spin_unlock_bh(&sdata->u.nan.func_lock); 3751 return; 3752 } 3753 match->cookie = func->cookie; 3754 3755 spin_unlock_bh(&sdata->u.nan.func_lock); 3756 3757 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3758 } 3759 EXPORT_SYMBOL(ieee80211_nan_func_match); 3760 3761 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3762 struct net_device *dev, 3763 const bool enabled) 3764 { 3765 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3766 3767 sdata->u.ap.multicast_to_unicast = enabled; 3768 3769 return 0; 3770 } 3771 3772 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3773 struct txq_info *txqi) 3774 { 3775 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3776 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3777 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3778 } 3779 3780 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3781 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3782 txqstats->backlog_packets = txqi->tin.backlog_packets; 3783 } 3784 3785 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3786 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3787 txqstats->flows = txqi->tin.flows; 3788 } 3789 3790 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3791 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3792 txqstats->drops = txqi->cstats.drop_count; 3793 } 3794 3795 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3796 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3797 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3798 } 3799 3800 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3801 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3802 txqstats->overlimit = txqi->tin.overlimit; 3803 } 3804 3805 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3806 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3807 txqstats->collisions = txqi->tin.collisions; 3808 } 3809 3810 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3811 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3812 txqstats->tx_bytes = txqi->tin.tx_bytes; 3813 } 3814 3815 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3816 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3817 txqstats->tx_packets = txqi->tin.tx_packets; 3818 } 3819 } 3820 3821 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3822 struct wireless_dev *wdev, 3823 struct cfg80211_txq_stats *txqstats) 3824 { 3825 struct ieee80211_local *local = wiphy_priv(wiphy); 3826 struct ieee80211_sub_if_data *sdata; 3827 int ret = 0; 3828 3829 if (!local->ops->wake_tx_queue) 3830 return 1; 3831 3832 spin_lock_bh(&local->fq.lock); 3833 rcu_read_lock(); 3834 3835 if (wdev) { 3836 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3837 if (!sdata->vif.txq) { 3838 ret = 1; 3839 goto out; 3840 } 3841 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3842 } else { 3843 /* phy stats */ 3844 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3845 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3846 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3847 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3848 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3849 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3850 txqstats->backlog_packets = local->fq.backlog; 3851 txqstats->backlog_bytes = local->fq.memory_usage; 3852 txqstats->overlimit = local->fq.overlimit; 3853 txqstats->overmemory = local->fq.overmemory; 3854 txqstats->collisions = local->fq.collisions; 3855 txqstats->max_flows = local->fq.flows_cnt; 3856 } 3857 3858 out: 3859 rcu_read_unlock(); 3860 spin_unlock_bh(&local->fq.lock); 3861 3862 return ret; 3863 } 3864 3865 static int 3866 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3867 struct net_device *dev, 3868 struct cfg80211_ftm_responder_stats *ftm_stats) 3869 { 3870 struct ieee80211_local *local = wiphy_priv(wiphy); 3871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3872 3873 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3874 } 3875 3876 static int 3877 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3878 struct cfg80211_pmsr_request *request) 3879 { 3880 struct ieee80211_local *local = wiphy_priv(wiphy); 3881 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3882 3883 return drv_start_pmsr(local, sdata, request); 3884 } 3885 3886 static void 3887 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3888 struct cfg80211_pmsr_request *request) 3889 { 3890 struct ieee80211_local *local = wiphy_priv(wiphy); 3891 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3892 3893 return drv_abort_pmsr(local, sdata, request); 3894 } 3895 3896 const struct cfg80211_ops mac80211_config_ops = { 3897 .add_virtual_intf = ieee80211_add_iface, 3898 .del_virtual_intf = ieee80211_del_iface, 3899 .change_virtual_intf = ieee80211_change_iface, 3900 .start_p2p_device = ieee80211_start_p2p_device, 3901 .stop_p2p_device = ieee80211_stop_p2p_device, 3902 .add_key = ieee80211_add_key, 3903 .del_key = ieee80211_del_key, 3904 .get_key = ieee80211_get_key, 3905 .set_default_key = ieee80211_config_default_key, 3906 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3907 .start_ap = ieee80211_start_ap, 3908 .change_beacon = ieee80211_change_beacon, 3909 .stop_ap = ieee80211_stop_ap, 3910 .add_station = ieee80211_add_station, 3911 .del_station = ieee80211_del_station, 3912 .change_station = ieee80211_change_station, 3913 .get_station = ieee80211_get_station, 3914 .dump_station = ieee80211_dump_station, 3915 .dump_survey = ieee80211_dump_survey, 3916 #ifdef CONFIG_MAC80211_MESH 3917 .add_mpath = ieee80211_add_mpath, 3918 .del_mpath = ieee80211_del_mpath, 3919 .change_mpath = ieee80211_change_mpath, 3920 .get_mpath = ieee80211_get_mpath, 3921 .dump_mpath = ieee80211_dump_mpath, 3922 .get_mpp = ieee80211_get_mpp, 3923 .dump_mpp = ieee80211_dump_mpp, 3924 .update_mesh_config = ieee80211_update_mesh_config, 3925 .get_mesh_config = ieee80211_get_mesh_config, 3926 .join_mesh = ieee80211_join_mesh, 3927 .leave_mesh = ieee80211_leave_mesh, 3928 #endif 3929 .join_ocb = ieee80211_join_ocb, 3930 .leave_ocb = ieee80211_leave_ocb, 3931 .change_bss = ieee80211_change_bss, 3932 .set_txq_params = ieee80211_set_txq_params, 3933 .set_monitor_channel = ieee80211_set_monitor_channel, 3934 .suspend = ieee80211_suspend, 3935 .resume = ieee80211_resume, 3936 .scan = ieee80211_scan, 3937 .abort_scan = ieee80211_abort_scan, 3938 .sched_scan_start = ieee80211_sched_scan_start, 3939 .sched_scan_stop = ieee80211_sched_scan_stop, 3940 .auth = ieee80211_auth, 3941 .assoc = ieee80211_assoc, 3942 .deauth = ieee80211_deauth, 3943 .disassoc = ieee80211_disassoc, 3944 .join_ibss = ieee80211_join_ibss, 3945 .leave_ibss = ieee80211_leave_ibss, 3946 .set_mcast_rate = ieee80211_set_mcast_rate, 3947 .set_wiphy_params = ieee80211_set_wiphy_params, 3948 .set_tx_power = ieee80211_set_tx_power, 3949 .get_tx_power = ieee80211_get_tx_power, 3950 .set_wds_peer = ieee80211_set_wds_peer, 3951 .rfkill_poll = ieee80211_rfkill_poll, 3952 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3953 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3954 .set_power_mgmt = ieee80211_set_power_mgmt, 3955 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3956 .remain_on_channel = ieee80211_remain_on_channel, 3957 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3958 .mgmt_tx = ieee80211_mgmt_tx, 3959 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3960 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3961 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3962 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3963 .set_antenna = ieee80211_set_antenna, 3964 .get_antenna = ieee80211_get_antenna, 3965 .set_rekey_data = ieee80211_set_rekey_data, 3966 .tdls_oper = ieee80211_tdls_oper, 3967 .tdls_mgmt = ieee80211_tdls_mgmt, 3968 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3969 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3970 .probe_client = ieee80211_probe_client, 3971 .set_noack_map = ieee80211_set_noack_map, 3972 #ifdef CONFIG_PM 3973 .set_wakeup = ieee80211_set_wakeup, 3974 #endif 3975 .get_channel = ieee80211_cfg_get_channel, 3976 .start_radar_detection = ieee80211_start_radar_detection, 3977 .channel_switch = ieee80211_channel_switch, 3978 .set_qos_map = ieee80211_set_qos_map, 3979 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3980 .add_tx_ts = ieee80211_add_tx_ts, 3981 .del_tx_ts = ieee80211_del_tx_ts, 3982 .start_nan = ieee80211_start_nan, 3983 .stop_nan = ieee80211_stop_nan, 3984 .nan_change_conf = ieee80211_nan_change_conf, 3985 .add_nan_func = ieee80211_add_nan_func, 3986 .del_nan_func = ieee80211_del_nan_func, 3987 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3988 .tx_control_port = ieee80211_tx_control_port, 3989 .get_txq_stats = ieee80211_get_txq_stats, 3990 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3991 .start_pmsr = ieee80211_start_pmsr, 3992 .abort_pmsr = ieee80211_abort_pmsr, 3993 }; 3994