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; 944 945 old = sdata_dereference(sdata->u.ap.beacon, sdata); 946 if (old) 947 return -EALREADY; 948 949 switch (params->smps_mode) { 950 case NL80211_SMPS_OFF: 951 sdata->smps_mode = IEEE80211_SMPS_OFF; 952 break; 953 case NL80211_SMPS_STATIC: 954 sdata->smps_mode = IEEE80211_SMPS_STATIC; 955 break; 956 case NL80211_SMPS_DYNAMIC: 957 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 958 break; 959 default: 960 return -EINVAL; 961 } 962 sdata->u.ap.req_smps = sdata->smps_mode; 963 964 sdata->needed_rx_chains = sdata->local->rx_chains; 965 966 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 967 968 if (params->he_cap) 969 sdata->vif.bss_conf.he_support = true; 970 971 mutex_lock(&local->mtx); 972 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 973 IEEE80211_CHANCTX_SHARED); 974 if (!err) 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 976 mutex_unlock(&local->mtx); 977 if (err) 978 return err; 979 980 /* 981 * Apply control port protocol, this allows us to 982 * not encrypt dynamic WEP control frames. 983 */ 984 sdata->control_port_protocol = params->crypto.control_port_ethertype; 985 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 986 sdata->control_port_over_nl80211 = 987 params->crypto.control_port_over_nl80211; 988 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 989 ¶ms->crypto, 990 sdata->vif.type); 991 992 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 993 vlan->control_port_protocol = 994 params->crypto.control_port_ethertype; 995 vlan->control_port_no_encrypt = 996 params->crypto.control_port_no_encrypt; 997 vlan->control_port_over_nl80211 = 998 params->crypto.control_port_over_nl80211; 999 vlan->encrypt_headroom = 1000 ieee80211_cs_headroom(sdata->local, 1001 ¶ms->crypto, 1002 vlan->vif.type); 1003 } 1004 1005 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1006 sdata->vif.bss_conf.enable_beacon = true; 1007 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1008 1009 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1010 if (params->ssid_len) 1011 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1012 params->ssid_len); 1013 sdata->vif.bss_conf.hidden_ssid = 1014 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1015 1016 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1017 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1018 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1019 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1020 if (params->p2p_opp_ps) 1021 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1022 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1023 1024 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1025 if (err < 0) { 1026 ieee80211_vif_release_channel(sdata); 1027 return err; 1028 } 1029 changed |= err; 1030 1031 err = drv_start_ap(sdata->local, sdata); 1032 if (err) { 1033 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1034 1035 if (old) 1036 kfree_rcu(old, rcu_head); 1037 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1038 ieee80211_vif_release_channel(sdata); 1039 return err; 1040 } 1041 1042 ieee80211_recalc_dtim(local, sdata); 1043 ieee80211_bss_info_change_notify(sdata, changed); 1044 1045 netif_carrier_on(dev); 1046 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1047 netif_carrier_on(vlan->dev); 1048 1049 return 0; 1050 } 1051 1052 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1053 struct cfg80211_beacon_data *params) 1054 { 1055 struct ieee80211_sub_if_data *sdata; 1056 struct beacon_data *old; 1057 int err; 1058 1059 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1060 sdata_assert_lock(sdata); 1061 1062 /* don't allow changing the beacon while CSA is in place - offset 1063 * of channel switch counter may change 1064 */ 1065 if (sdata->vif.csa_active) 1066 return -EBUSY; 1067 1068 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1069 if (!old) 1070 return -ENOENT; 1071 1072 err = ieee80211_assign_beacon(sdata, params, NULL); 1073 if (err < 0) 1074 return err; 1075 ieee80211_bss_info_change_notify(sdata, err); 1076 return 0; 1077 } 1078 1079 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1080 { 1081 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1082 struct ieee80211_sub_if_data *vlan; 1083 struct ieee80211_local *local = sdata->local; 1084 struct beacon_data *old_beacon; 1085 struct probe_resp *old_probe_resp; 1086 struct cfg80211_chan_def chandef; 1087 1088 sdata_assert_lock(sdata); 1089 1090 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1091 if (!old_beacon) 1092 return -ENOENT; 1093 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1094 1095 /* abort any running channel switch */ 1096 mutex_lock(&local->mtx); 1097 sdata->vif.csa_active = false; 1098 if (sdata->csa_block_tx) { 1099 ieee80211_wake_vif_queues(local, sdata, 1100 IEEE80211_QUEUE_STOP_REASON_CSA); 1101 sdata->csa_block_tx = false; 1102 } 1103 1104 mutex_unlock(&local->mtx); 1105 1106 kfree(sdata->u.ap.next_beacon); 1107 sdata->u.ap.next_beacon = NULL; 1108 1109 /* turn off carrier for this interface and dependent VLANs */ 1110 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1111 netif_carrier_off(vlan->dev); 1112 netif_carrier_off(dev); 1113 1114 /* remove beacon and probe response */ 1115 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1116 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1117 kfree_rcu(old_beacon, rcu_head); 1118 if (old_probe_resp) 1119 kfree_rcu(old_probe_resp, rcu_head); 1120 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1121 1122 kfree(sdata->vif.bss_conf.ftmr_params); 1123 sdata->vif.bss_conf.ftmr_params = NULL; 1124 1125 __sta_info_flush(sdata, true); 1126 ieee80211_free_keys(sdata, true); 1127 1128 sdata->vif.bss_conf.enable_beacon = false; 1129 sdata->vif.bss_conf.ssid_len = 0; 1130 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1131 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1132 1133 if (sdata->wdev.cac_started) { 1134 chandef = sdata->vif.bss_conf.chandef; 1135 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1136 cfg80211_cac_event(sdata->dev, &chandef, 1137 NL80211_RADAR_CAC_ABORTED, 1138 GFP_KERNEL); 1139 } 1140 1141 drv_stop_ap(sdata->local, sdata); 1142 1143 /* free all potentially still buffered bcast frames */ 1144 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1145 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1146 1147 mutex_lock(&local->mtx); 1148 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1149 ieee80211_vif_release_channel(sdata); 1150 mutex_unlock(&local->mtx); 1151 1152 return 0; 1153 } 1154 1155 static int sta_apply_auth_flags(struct ieee80211_local *local, 1156 struct sta_info *sta, 1157 u32 mask, u32 set) 1158 { 1159 int ret; 1160 1161 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1162 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1163 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1165 if (ret) 1166 return ret; 1167 } 1168 1169 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1170 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1171 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1172 /* 1173 * When peer becomes associated, init rate control as 1174 * well. Some drivers require rate control initialized 1175 * before drv_sta_state() is called. 1176 */ 1177 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1178 rate_control_rate_init(sta); 1179 1180 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1181 if (ret) 1182 return ret; 1183 } 1184 1185 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1186 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1187 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1188 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1189 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1190 else 1191 ret = 0; 1192 if (ret) 1193 return ret; 1194 } 1195 1196 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1197 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1198 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1199 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1200 if (ret) 1201 return ret; 1202 } 1203 1204 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1205 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1206 test_sta_flag(sta, WLAN_STA_AUTH)) { 1207 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1208 if (ret) 1209 return ret; 1210 } 1211 1212 return 0; 1213 } 1214 1215 static void sta_apply_mesh_params(struct ieee80211_local *local, 1216 struct sta_info *sta, 1217 struct station_parameters *params) 1218 { 1219 #ifdef CONFIG_MAC80211_MESH 1220 struct ieee80211_sub_if_data *sdata = sta->sdata; 1221 u32 changed = 0; 1222 1223 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1224 switch (params->plink_state) { 1225 case NL80211_PLINK_ESTAB: 1226 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1227 changed = mesh_plink_inc_estab_count(sdata); 1228 sta->mesh->plink_state = params->plink_state; 1229 sta->mesh->aid = params->peer_aid; 1230 1231 ieee80211_mps_sta_status_update(sta); 1232 changed |= ieee80211_mps_set_sta_local_pm(sta, 1233 sdata->u.mesh.mshcfg.power_mode); 1234 1235 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1236 /* init at low value */ 1237 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1238 1239 break; 1240 case NL80211_PLINK_LISTEN: 1241 case NL80211_PLINK_BLOCKED: 1242 case NL80211_PLINK_OPN_SNT: 1243 case NL80211_PLINK_OPN_RCVD: 1244 case NL80211_PLINK_CNF_RCVD: 1245 case NL80211_PLINK_HOLDING: 1246 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1247 changed = mesh_plink_dec_estab_count(sdata); 1248 sta->mesh->plink_state = params->plink_state; 1249 1250 ieee80211_mps_sta_status_update(sta); 1251 changed |= ieee80211_mps_set_sta_local_pm(sta, 1252 NL80211_MESH_POWER_UNKNOWN); 1253 break; 1254 default: 1255 /* nothing */ 1256 break; 1257 } 1258 } 1259 1260 switch (params->plink_action) { 1261 case NL80211_PLINK_ACTION_NO_ACTION: 1262 /* nothing */ 1263 break; 1264 case NL80211_PLINK_ACTION_OPEN: 1265 changed |= mesh_plink_open(sta); 1266 break; 1267 case NL80211_PLINK_ACTION_BLOCK: 1268 changed |= mesh_plink_block(sta); 1269 break; 1270 } 1271 1272 if (params->local_pm) 1273 changed |= ieee80211_mps_set_sta_local_pm(sta, 1274 params->local_pm); 1275 1276 ieee80211_mbss_info_change_notify(sdata, changed); 1277 #endif 1278 } 1279 1280 static int sta_apply_parameters(struct ieee80211_local *local, 1281 struct sta_info *sta, 1282 struct station_parameters *params) 1283 { 1284 int ret = 0; 1285 struct ieee80211_supported_band *sband; 1286 struct ieee80211_sub_if_data *sdata = sta->sdata; 1287 u32 mask, set; 1288 1289 sband = ieee80211_get_sband(sdata); 1290 if (!sband) 1291 return -EINVAL; 1292 1293 mask = params->sta_flags_mask; 1294 set = params->sta_flags_set; 1295 1296 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1297 /* 1298 * In mesh mode, ASSOCIATED isn't part of the nl80211 1299 * API but must follow AUTHENTICATED for driver state. 1300 */ 1301 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1302 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1303 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1304 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1305 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1306 /* 1307 * TDLS -- everything follows authorized, but 1308 * only becoming authorized is possible, not 1309 * going back 1310 */ 1311 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1312 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1313 BIT(NL80211_STA_FLAG_ASSOCIATED); 1314 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1315 BIT(NL80211_STA_FLAG_ASSOCIATED); 1316 } 1317 } 1318 1319 if (mask & BIT(NL80211_STA_FLAG_WME) && 1320 local->hw.queues >= IEEE80211_NUM_ACS) 1321 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1322 1323 /* auth flags will be set later for TDLS, 1324 * and for unassociated stations that move to assocaited */ 1325 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1326 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1327 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1328 ret = sta_apply_auth_flags(local, sta, mask, set); 1329 if (ret) 1330 return ret; 1331 } 1332 1333 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1334 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1335 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1336 else 1337 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1338 } 1339 1340 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1341 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1342 if (set & BIT(NL80211_STA_FLAG_MFP)) 1343 set_sta_flag(sta, WLAN_STA_MFP); 1344 else 1345 clear_sta_flag(sta, WLAN_STA_MFP); 1346 } 1347 1348 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1349 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1350 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1351 else 1352 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1353 } 1354 1355 /* mark TDLS channel switch support, if the AP allows it */ 1356 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1357 !sdata->u.mgd.tdls_chan_switch_prohibited && 1358 params->ext_capab_len >= 4 && 1359 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1360 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1361 1362 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1363 !sdata->u.mgd.tdls_wider_bw_prohibited && 1364 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1365 params->ext_capab_len >= 8 && 1366 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1367 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1368 1369 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1370 sta->sta.uapsd_queues = params->uapsd_queues; 1371 sta->sta.max_sp = params->max_sp; 1372 } 1373 1374 /* The sender might not have sent the last bit, consider it to be 0 */ 1375 if (params->ext_capab_len >= 8) { 1376 u8 val = (params->ext_capab[7] & 1377 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1378 1379 /* we did get all the bits, take the MSB as well */ 1380 if (params->ext_capab_len >= 9) { 1381 u8 val_msb = params->ext_capab[8] & 1382 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1383 val_msb <<= 1; 1384 val |= val_msb; 1385 } 1386 1387 switch (val) { 1388 case 1: 1389 sta->sta.max_amsdu_subframes = 32; 1390 break; 1391 case 2: 1392 sta->sta.max_amsdu_subframes = 16; 1393 break; 1394 case 3: 1395 sta->sta.max_amsdu_subframes = 8; 1396 break; 1397 default: 1398 sta->sta.max_amsdu_subframes = 0; 1399 } 1400 } 1401 1402 /* 1403 * cfg80211 validates this (1-2007) and allows setting the AID 1404 * only when creating a new station entry 1405 */ 1406 if (params->aid) 1407 sta->sta.aid = params->aid; 1408 1409 /* 1410 * Some of the following updates would be racy if called on an 1411 * existing station, via ieee80211_change_station(). However, 1412 * all such changes are rejected by cfg80211 except for updates 1413 * changing the supported rates on an existing but not yet used 1414 * TDLS peer. 1415 */ 1416 1417 if (params->listen_interval >= 0) 1418 sta->listen_interval = params->listen_interval; 1419 1420 if (params->supported_rates) { 1421 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1422 sband, params->supported_rates, 1423 params->supported_rates_len, 1424 &sta->sta.supp_rates[sband->band]); 1425 } 1426 1427 if (params->ht_capa) 1428 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1429 params->ht_capa, sta); 1430 1431 /* VHT can override some HT caps such as the A-MSDU max length */ 1432 if (params->vht_capa) 1433 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1434 params->vht_capa, sta); 1435 1436 if (params->he_capa) 1437 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1438 (void *)params->he_capa, 1439 params->he_capa_len, sta); 1440 1441 if (params->opmode_notif_used) { 1442 /* returned value is only needed for rc update, but the 1443 * rc isn't initialized here yet, so ignore it 1444 */ 1445 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1446 sband->band); 1447 } 1448 1449 if (params->support_p2p_ps >= 0) 1450 sta->sta.support_p2p_ps = params->support_p2p_ps; 1451 1452 if (ieee80211_vif_is_mesh(&sdata->vif)) 1453 sta_apply_mesh_params(local, sta, params); 1454 1455 if (params->airtime_weight) 1456 sta->airtime_weight = params->airtime_weight; 1457 1458 /* set the STA state after all sta info from usermode has been set */ 1459 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1460 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1461 ret = sta_apply_auth_flags(local, sta, mask, set); 1462 if (ret) 1463 return ret; 1464 } 1465 1466 return 0; 1467 } 1468 1469 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1470 const u8 *mac, 1471 struct station_parameters *params) 1472 { 1473 struct ieee80211_local *local = wiphy_priv(wiphy); 1474 struct sta_info *sta; 1475 struct ieee80211_sub_if_data *sdata; 1476 int err; 1477 int layer2_update; 1478 1479 if (params->vlan) { 1480 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1481 1482 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1483 sdata->vif.type != NL80211_IFTYPE_AP) 1484 return -EINVAL; 1485 } else 1486 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1487 1488 if (ether_addr_equal(mac, sdata->vif.addr)) 1489 return -EINVAL; 1490 1491 if (is_multicast_ether_addr(mac)) 1492 return -EINVAL; 1493 1494 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1495 if (!sta) 1496 return -ENOMEM; 1497 1498 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1499 sta->sta.tdls = true; 1500 1501 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1502 !sdata->u.mgd.associated) 1503 return -EINVAL; 1504 1505 err = sta_apply_parameters(local, sta, params); 1506 if (err) { 1507 sta_info_free(local, sta); 1508 return err; 1509 } 1510 1511 /* 1512 * for TDLS and for unassociated station, rate control should be 1513 * initialized only when rates are known and station is marked 1514 * authorized/associated 1515 */ 1516 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1517 test_sta_flag(sta, WLAN_STA_ASSOC)) 1518 rate_control_rate_init(sta); 1519 1520 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1521 sdata->vif.type == NL80211_IFTYPE_AP; 1522 1523 err = sta_info_insert_rcu(sta); 1524 if (err) { 1525 rcu_read_unlock(); 1526 return err; 1527 } 1528 1529 if (layer2_update) 1530 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1531 1532 rcu_read_unlock(); 1533 1534 return 0; 1535 } 1536 1537 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1538 struct station_del_parameters *params) 1539 { 1540 struct ieee80211_sub_if_data *sdata; 1541 1542 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1543 1544 if (params->mac) 1545 return sta_info_destroy_addr_bss(sdata, params->mac); 1546 1547 sta_info_flush(sdata); 1548 return 0; 1549 } 1550 1551 static int ieee80211_change_station(struct wiphy *wiphy, 1552 struct net_device *dev, const u8 *mac, 1553 struct station_parameters *params) 1554 { 1555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1556 struct ieee80211_local *local = wiphy_priv(wiphy); 1557 struct sta_info *sta; 1558 struct ieee80211_sub_if_data *vlansdata; 1559 enum cfg80211_station_type statype; 1560 int err; 1561 1562 mutex_lock(&local->sta_mtx); 1563 1564 sta = sta_info_get_bss(sdata, mac); 1565 if (!sta) { 1566 err = -ENOENT; 1567 goto out_err; 1568 } 1569 1570 switch (sdata->vif.type) { 1571 case NL80211_IFTYPE_MESH_POINT: 1572 if (sdata->u.mesh.user_mpm) 1573 statype = CFG80211_STA_MESH_PEER_USER; 1574 else 1575 statype = CFG80211_STA_MESH_PEER_KERNEL; 1576 break; 1577 case NL80211_IFTYPE_ADHOC: 1578 statype = CFG80211_STA_IBSS; 1579 break; 1580 case NL80211_IFTYPE_STATION: 1581 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1582 statype = CFG80211_STA_AP_STA; 1583 break; 1584 } 1585 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1586 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1587 else 1588 statype = CFG80211_STA_TDLS_PEER_SETUP; 1589 break; 1590 case NL80211_IFTYPE_AP: 1591 case NL80211_IFTYPE_AP_VLAN: 1592 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1593 statype = CFG80211_STA_AP_CLIENT; 1594 else 1595 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1596 break; 1597 default: 1598 err = -EOPNOTSUPP; 1599 goto out_err; 1600 } 1601 1602 err = cfg80211_check_station_change(wiphy, params, statype); 1603 if (err) 1604 goto out_err; 1605 1606 if (params->vlan && params->vlan != sta->sdata->dev) { 1607 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1608 1609 if (params->vlan->ieee80211_ptr->use_4addr) { 1610 if (vlansdata->u.vlan.sta) { 1611 err = -EBUSY; 1612 goto out_err; 1613 } 1614 1615 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1616 __ieee80211_check_fast_rx_iface(vlansdata); 1617 } 1618 1619 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1620 sta->sdata->u.vlan.sta) 1621 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1622 1623 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1624 ieee80211_vif_dec_num_mcast(sta->sdata); 1625 1626 sta->sdata = vlansdata; 1627 ieee80211_check_fast_xmit(sta); 1628 1629 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1630 ieee80211_vif_inc_num_mcast(sta->sdata); 1631 1632 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1633 } 1634 1635 err = sta_apply_parameters(local, sta, params); 1636 if (err) 1637 goto out_err; 1638 1639 mutex_unlock(&local->sta_mtx); 1640 1641 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1642 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1643 sta->known_smps_mode != sta->sdata->bss->req_smps && 1644 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1645 sta_info_tx_streams(sta) != 1) { 1646 ht_dbg(sta->sdata, 1647 "%pM just authorized and MIMO capable - update SMPS\n", 1648 sta->sta.addr); 1649 ieee80211_send_smps_action(sta->sdata, 1650 sta->sdata->bss->req_smps, 1651 sta->sta.addr, 1652 sta->sdata->vif.bss_conf.bssid); 1653 } 1654 1655 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1656 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1657 ieee80211_recalc_ps(local); 1658 ieee80211_recalc_ps_vif(sdata); 1659 } 1660 1661 return 0; 1662 out_err: 1663 mutex_unlock(&local->sta_mtx); 1664 return err; 1665 } 1666 1667 #ifdef CONFIG_MAC80211_MESH 1668 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1669 const u8 *dst, const u8 *next_hop) 1670 { 1671 struct ieee80211_sub_if_data *sdata; 1672 struct mesh_path *mpath; 1673 struct sta_info *sta; 1674 1675 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1676 1677 rcu_read_lock(); 1678 sta = sta_info_get(sdata, next_hop); 1679 if (!sta) { 1680 rcu_read_unlock(); 1681 return -ENOENT; 1682 } 1683 1684 mpath = mesh_path_add(sdata, dst); 1685 if (IS_ERR(mpath)) { 1686 rcu_read_unlock(); 1687 return PTR_ERR(mpath); 1688 } 1689 1690 mesh_path_fix_nexthop(mpath, sta); 1691 1692 rcu_read_unlock(); 1693 return 0; 1694 } 1695 1696 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1697 const u8 *dst) 1698 { 1699 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1700 1701 if (dst) 1702 return mesh_path_del(sdata, dst); 1703 1704 mesh_path_flush_by_iface(sdata); 1705 return 0; 1706 } 1707 1708 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1709 const u8 *dst, const u8 *next_hop) 1710 { 1711 struct ieee80211_sub_if_data *sdata; 1712 struct mesh_path *mpath; 1713 struct sta_info *sta; 1714 1715 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1716 1717 rcu_read_lock(); 1718 1719 sta = sta_info_get(sdata, next_hop); 1720 if (!sta) { 1721 rcu_read_unlock(); 1722 return -ENOENT; 1723 } 1724 1725 mpath = mesh_path_lookup(sdata, dst); 1726 if (!mpath) { 1727 rcu_read_unlock(); 1728 return -ENOENT; 1729 } 1730 1731 mesh_path_fix_nexthop(mpath, sta); 1732 1733 rcu_read_unlock(); 1734 return 0; 1735 } 1736 1737 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1738 struct mpath_info *pinfo) 1739 { 1740 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1741 1742 if (next_hop_sta) 1743 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1744 else 1745 eth_zero_addr(next_hop); 1746 1747 memset(pinfo, 0, sizeof(*pinfo)); 1748 1749 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1750 1751 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1752 MPATH_INFO_SN | 1753 MPATH_INFO_METRIC | 1754 MPATH_INFO_EXPTIME | 1755 MPATH_INFO_DISCOVERY_TIMEOUT | 1756 MPATH_INFO_DISCOVERY_RETRIES | 1757 MPATH_INFO_FLAGS | 1758 MPATH_INFO_HOP_COUNT | 1759 MPATH_INFO_PATH_CHANGE; 1760 1761 pinfo->frame_qlen = mpath->frame_queue.qlen; 1762 pinfo->sn = mpath->sn; 1763 pinfo->metric = mpath->metric; 1764 if (time_before(jiffies, mpath->exp_time)) 1765 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1766 pinfo->discovery_timeout = 1767 jiffies_to_msecs(mpath->discovery_timeout); 1768 pinfo->discovery_retries = mpath->discovery_retries; 1769 if (mpath->flags & MESH_PATH_ACTIVE) 1770 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1771 if (mpath->flags & MESH_PATH_RESOLVING) 1772 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1773 if (mpath->flags & MESH_PATH_SN_VALID) 1774 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1775 if (mpath->flags & MESH_PATH_FIXED) 1776 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1777 if (mpath->flags & MESH_PATH_RESOLVED) 1778 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1779 pinfo->hop_count = mpath->hop_count; 1780 pinfo->path_change_count = mpath->path_change_count; 1781 } 1782 1783 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1784 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1785 1786 { 1787 struct ieee80211_sub_if_data *sdata; 1788 struct mesh_path *mpath; 1789 1790 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1791 1792 rcu_read_lock(); 1793 mpath = mesh_path_lookup(sdata, dst); 1794 if (!mpath) { 1795 rcu_read_unlock(); 1796 return -ENOENT; 1797 } 1798 memcpy(dst, mpath->dst, ETH_ALEN); 1799 mpath_set_pinfo(mpath, next_hop, pinfo); 1800 rcu_read_unlock(); 1801 return 0; 1802 } 1803 1804 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1805 int idx, u8 *dst, u8 *next_hop, 1806 struct mpath_info *pinfo) 1807 { 1808 struct ieee80211_sub_if_data *sdata; 1809 struct mesh_path *mpath; 1810 1811 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1812 1813 rcu_read_lock(); 1814 mpath = mesh_path_lookup_by_idx(sdata, idx); 1815 if (!mpath) { 1816 rcu_read_unlock(); 1817 return -ENOENT; 1818 } 1819 memcpy(dst, mpath->dst, ETH_ALEN); 1820 mpath_set_pinfo(mpath, next_hop, pinfo); 1821 rcu_read_unlock(); 1822 return 0; 1823 } 1824 1825 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1826 struct mpath_info *pinfo) 1827 { 1828 memset(pinfo, 0, sizeof(*pinfo)); 1829 memcpy(mpp, mpath->mpp, ETH_ALEN); 1830 1831 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1832 } 1833 1834 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1835 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1836 1837 { 1838 struct ieee80211_sub_if_data *sdata; 1839 struct mesh_path *mpath; 1840 1841 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1842 1843 rcu_read_lock(); 1844 mpath = mpp_path_lookup(sdata, dst); 1845 if (!mpath) { 1846 rcu_read_unlock(); 1847 return -ENOENT; 1848 } 1849 memcpy(dst, mpath->dst, ETH_ALEN); 1850 mpp_set_pinfo(mpath, mpp, pinfo); 1851 rcu_read_unlock(); 1852 return 0; 1853 } 1854 1855 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1856 int idx, u8 *dst, u8 *mpp, 1857 struct mpath_info *pinfo) 1858 { 1859 struct ieee80211_sub_if_data *sdata; 1860 struct mesh_path *mpath; 1861 1862 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1863 1864 rcu_read_lock(); 1865 mpath = mpp_path_lookup_by_idx(sdata, idx); 1866 if (!mpath) { 1867 rcu_read_unlock(); 1868 return -ENOENT; 1869 } 1870 memcpy(dst, mpath->dst, ETH_ALEN); 1871 mpp_set_pinfo(mpath, mpp, pinfo); 1872 rcu_read_unlock(); 1873 return 0; 1874 } 1875 1876 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1877 struct net_device *dev, 1878 struct mesh_config *conf) 1879 { 1880 struct ieee80211_sub_if_data *sdata; 1881 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1882 1883 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1884 return 0; 1885 } 1886 1887 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1888 { 1889 return (mask >> (parm-1)) & 0x1; 1890 } 1891 1892 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1893 const struct mesh_setup *setup) 1894 { 1895 u8 *new_ie; 1896 const u8 *old_ie; 1897 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1898 struct ieee80211_sub_if_data, u.mesh); 1899 1900 /* allocate information elements */ 1901 new_ie = NULL; 1902 old_ie = ifmsh->ie; 1903 1904 if (setup->ie_len) { 1905 new_ie = kmemdup(setup->ie, setup->ie_len, 1906 GFP_KERNEL); 1907 if (!new_ie) 1908 return -ENOMEM; 1909 } 1910 ifmsh->ie_len = setup->ie_len; 1911 ifmsh->ie = new_ie; 1912 kfree(old_ie); 1913 1914 /* now copy the rest of the setup parameters */ 1915 ifmsh->mesh_id_len = setup->mesh_id_len; 1916 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1917 ifmsh->mesh_sp_id = setup->sync_method; 1918 ifmsh->mesh_pp_id = setup->path_sel_proto; 1919 ifmsh->mesh_pm_id = setup->path_metric; 1920 ifmsh->user_mpm = setup->user_mpm; 1921 ifmsh->mesh_auth_id = setup->auth_id; 1922 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1923 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1924 if (setup->is_authenticated) 1925 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1926 if (setup->is_secure) 1927 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1928 1929 /* mcast rate setting in Mesh Node */ 1930 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1931 sizeof(setup->mcast_rate)); 1932 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1933 1934 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1935 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1936 1937 return 0; 1938 } 1939 1940 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1941 struct net_device *dev, u32 mask, 1942 const struct mesh_config *nconf) 1943 { 1944 struct mesh_config *conf; 1945 struct ieee80211_sub_if_data *sdata; 1946 struct ieee80211_if_mesh *ifmsh; 1947 1948 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1949 ifmsh = &sdata->u.mesh; 1950 1951 /* Set the config options which we are interested in setting */ 1952 conf = &(sdata->u.mesh.mshcfg); 1953 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1954 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1955 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1956 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1957 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1958 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1960 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1961 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1962 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1963 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1964 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1965 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1966 conf->element_ttl = nconf->element_ttl; 1967 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1968 if (ifmsh->user_mpm) 1969 return -EBUSY; 1970 conf->auto_open_plinks = nconf->auto_open_plinks; 1971 } 1972 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1973 conf->dot11MeshNbrOffsetMaxNeighbor = 1974 nconf->dot11MeshNbrOffsetMaxNeighbor; 1975 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1976 conf->dot11MeshHWMPmaxPREQretries = 1977 nconf->dot11MeshHWMPmaxPREQretries; 1978 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1979 conf->path_refresh_time = nconf->path_refresh_time; 1980 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1981 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1982 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1983 conf->dot11MeshHWMPactivePathTimeout = 1984 nconf->dot11MeshHWMPactivePathTimeout; 1985 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1986 conf->dot11MeshHWMPpreqMinInterval = 1987 nconf->dot11MeshHWMPpreqMinInterval; 1988 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1989 conf->dot11MeshHWMPperrMinInterval = 1990 nconf->dot11MeshHWMPperrMinInterval; 1991 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1992 mask)) 1993 conf->dot11MeshHWMPnetDiameterTraversalTime = 1994 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1996 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1997 ieee80211_mesh_root_setup(ifmsh); 1998 } 1999 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2000 /* our current gate announcement implementation rides on root 2001 * announcements, so require this ifmsh to also be a root node 2002 * */ 2003 if (nconf->dot11MeshGateAnnouncementProtocol && 2004 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2005 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2006 ieee80211_mesh_root_setup(ifmsh); 2007 } 2008 conf->dot11MeshGateAnnouncementProtocol = 2009 nconf->dot11MeshGateAnnouncementProtocol; 2010 } 2011 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2012 conf->dot11MeshHWMPRannInterval = 2013 nconf->dot11MeshHWMPRannInterval; 2014 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2015 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2017 /* our RSSI threshold implementation is supported only for 2018 * devices that report signal in dBm. 2019 */ 2020 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2021 return -ENOTSUPP; 2022 conf->rssi_threshold = nconf->rssi_threshold; 2023 } 2024 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2025 conf->ht_opmode = nconf->ht_opmode; 2026 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2027 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2028 } 2029 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2030 conf->dot11MeshHWMPactivePathToRootTimeout = 2031 nconf->dot11MeshHWMPactivePathToRootTimeout; 2032 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2033 conf->dot11MeshHWMProotInterval = 2034 nconf->dot11MeshHWMProotInterval; 2035 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2036 conf->dot11MeshHWMPconfirmationInterval = 2037 nconf->dot11MeshHWMPconfirmationInterval; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2039 conf->power_mode = nconf->power_mode; 2040 ieee80211_mps_local_status_update(sdata); 2041 } 2042 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2043 conf->dot11MeshAwakeWindowDuration = 2044 nconf->dot11MeshAwakeWindowDuration; 2045 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2046 conf->plink_timeout = nconf->plink_timeout; 2047 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2048 conf->dot11MeshConnectedToMeshGate = 2049 nconf->dot11MeshConnectedToMeshGate; 2050 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2051 return 0; 2052 } 2053 2054 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2055 const struct mesh_config *conf, 2056 const struct mesh_setup *setup) 2057 { 2058 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2059 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2060 int err; 2061 2062 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2063 err = copy_mesh_setup(ifmsh, setup); 2064 if (err) 2065 return err; 2066 2067 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2068 2069 /* can mesh use other SMPS modes? */ 2070 sdata->smps_mode = IEEE80211_SMPS_OFF; 2071 sdata->needed_rx_chains = sdata->local->rx_chains; 2072 2073 mutex_lock(&sdata->local->mtx); 2074 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2075 IEEE80211_CHANCTX_SHARED); 2076 mutex_unlock(&sdata->local->mtx); 2077 if (err) 2078 return err; 2079 2080 return ieee80211_start_mesh(sdata); 2081 } 2082 2083 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2084 { 2085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2086 2087 ieee80211_stop_mesh(sdata); 2088 mutex_lock(&sdata->local->mtx); 2089 ieee80211_vif_release_channel(sdata); 2090 mutex_unlock(&sdata->local->mtx); 2091 2092 return 0; 2093 } 2094 #endif 2095 2096 static int ieee80211_change_bss(struct wiphy *wiphy, 2097 struct net_device *dev, 2098 struct bss_parameters *params) 2099 { 2100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2101 struct ieee80211_supported_band *sband; 2102 u32 changed = 0; 2103 2104 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2105 return -ENOENT; 2106 2107 sband = ieee80211_get_sband(sdata); 2108 if (!sband) 2109 return -EINVAL; 2110 2111 if (params->use_cts_prot >= 0) { 2112 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2113 changed |= BSS_CHANGED_ERP_CTS_PROT; 2114 } 2115 if (params->use_short_preamble >= 0) { 2116 sdata->vif.bss_conf.use_short_preamble = 2117 params->use_short_preamble; 2118 changed |= BSS_CHANGED_ERP_PREAMBLE; 2119 } 2120 2121 if (!sdata->vif.bss_conf.use_short_slot && 2122 sband->band == NL80211_BAND_5GHZ) { 2123 sdata->vif.bss_conf.use_short_slot = true; 2124 changed |= BSS_CHANGED_ERP_SLOT; 2125 } 2126 2127 if (params->use_short_slot_time >= 0) { 2128 sdata->vif.bss_conf.use_short_slot = 2129 params->use_short_slot_time; 2130 changed |= BSS_CHANGED_ERP_SLOT; 2131 } 2132 2133 if (params->basic_rates) { 2134 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2135 wiphy->bands[sband->band], 2136 params->basic_rates, 2137 params->basic_rates_len, 2138 &sdata->vif.bss_conf.basic_rates); 2139 changed |= BSS_CHANGED_BASIC_RATES; 2140 ieee80211_check_rate_mask(sdata); 2141 } 2142 2143 if (params->ap_isolate >= 0) { 2144 if (params->ap_isolate) 2145 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2146 else 2147 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2148 ieee80211_check_fast_rx_iface(sdata); 2149 } 2150 2151 if (params->ht_opmode >= 0) { 2152 sdata->vif.bss_conf.ht_operation_mode = 2153 (u16) params->ht_opmode; 2154 changed |= BSS_CHANGED_HT; 2155 } 2156 2157 if (params->p2p_ctwindow >= 0) { 2158 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2159 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2160 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2161 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2162 changed |= BSS_CHANGED_P2P_PS; 2163 } 2164 2165 if (params->p2p_opp_ps > 0) { 2166 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2167 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2168 changed |= BSS_CHANGED_P2P_PS; 2169 } else 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 } 2174 2175 ieee80211_bss_info_change_notify(sdata, changed); 2176 2177 return 0; 2178 } 2179 2180 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2181 struct net_device *dev, 2182 struct ieee80211_txq_params *params) 2183 { 2184 struct ieee80211_local *local = wiphy_priv(wiphy); 2185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2186 struct ieee80211_tx_queue_params p; 2187 2188 if (!local->ops->conf_tx) 2189 return -EOPNOTSUPP; 2190 2191 if (local->hw.queues < IEEE80211_NUM_ACS) 2192 return -EOPNOTSUPP; 2193 2194 memset(&p, 0, sizeof(p)); 2195 p.aifs = params->aifs; 2196 p.cw_max = params->cwmax; 2197 p.cw_min = params->cwmin; 2198 p.txop = params->txop; 2199 2200 /* 2201 * Setting tx queue params disables u-apsd because it's only 2202 * called in master mode. 2203 */ 2204 p.uapsd = false; 2205 2206 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2207 2208 sdata->tx_conf[params->ac] = p; 2209 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2210 wiphy_debug(local->hw.wiphy, 2211 "failed to set TX queue parameters for AC %d\n", 2212 params->ac); 2213 return -EINVAL; 2214 } 2215 2216 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2217 2218 return 0; 2219 } 2220 2221 #ifdef CONFIG_PM 2222 static int ieee80211_suspend(struct wiphy *wiphy, 2223 struct cfg80211_wowlan *wowlan) 2224 { 2225 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2226 } 2227 2228 static int ieee80211_resume(struct wiphy *wiphy) 2229 { 2230 return __ieee80211_resume(wiphy_priv(wiphy)); 2231 } 2232 #else 2233 #define ieee80211_suspend NULL 2234 #define ieee80211_resume NULL 2235 #endif 2236 2237 static int ieee80211_scan(struct wiphy *wiphy, 2238 struct cfg80211_scan_request *req) 2239 { 2240 struct ieee80211_sub_if_data *sdata; 2241 2242 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2243 2244 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2245 case NL80211_IFTYPE_STATION: 2246 case NL80211_IFTYPE_ADHOC: 2247 case NL80211_IFTYPE_MESH_POINT: 2248 case NL80211_IFTYPE_P2P_CLIENT: 2249 case NL80211_IFTYPE_P2P_DEVICE: 2250 break; 2251 case NL80211_IFTYPE_P2P_GO: 2252 if (sdata->local->ops->hw_scan) 2253 break; 2254 /* 2255 * FIXME: implement NoA while scanning in software, 2256 * for now fall through to allow scanning only when 2257 * beaconing hasn't been configured yet 2258 */ 2259 /* fall through */ 2260 case NL80211_IFTYPE_AP: 2261 /* 2262 * If the scan has been forced (and the driver supports 2263 * forcing), don't care about being beaconing already. 2264 * This will create problems to the attached stations (e.g. all 2265 * the frames sent while scanning on other channel will be 2266 * lost) 2267 */ 2268 if (sdata->u.ap.beacon && 2269 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2270 !(req->flags & NL80211_SCAN_FLAG_AP))) 2271 return -EOPNOTSUPP; 2272 break; 2273 case NL80211_IFTYPE_NAN: 2274 default: 2275 return -EOPNOTSUPP; 2276 } 2277 2278 return ieee80211_request_scan(sdata, req); 2279 } 2280 2281 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2282 { 2283 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2284 } 2285 2286 static int 2287 ieee80211_sched_scan_start(struct wiphy *wiphy, 2288 struct net_device *dev, 2289 struct cfg80211_sched_scan_request *req) 2290 { 2291 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2292 2293 if (!sdata->local->ops->sched_scan_start) 2294 return -EOPNOTSUPP; 2295 2296 return ieee80211_request_sched_scan_start(sdata, req); 2297 } 2298 2299 static int 2300 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2301 u64 reqid) 2302 { 2303 struct ieee80211_local *local = wiphy_priv(wiphy); 2304 2305 if (!local->ops->sched_scan_stop) 2306 return -EOPNOTSUPP; 2307 2308 return ieee80211_request_sched_scan_stop(local); 2309 } 2310 2311 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2312 struct cfg80211_auth_request *req) 2313 { 2314 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2315 } 2316 2317 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2318 struct cfg80211_assoc_request *req) 2319 { 2320 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2321 } 2322 2323 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2324 struct cfg80211_deauth_request *req) 2325 { 2326 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2327 } 2328 2329 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2330 struct cfg80211_disassoc_request *req) 2331 { 2332 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2333 } 2334 2335 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2336 struct cfg80211_ibss_params *params) 2337 { 2338 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2339 } 2340 2341 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2342 { 2343 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2344 } 2345 2346 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2347 struct ocb_setup *setup) 2348 { 2349 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2350 } 2351 2352 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2353 { 2354 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2355 } 2356 2357 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2358 int rate[NUM_NL80211_BANDS]) 2359 { 2360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2361 2362 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2363 sizeof(int) * NUM_NL80211_BANDS); 2364 2365 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2366 2367 return 0; 2368 } 2369 2370 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2371 { 2372 struct ieee80211_local *local = wiphy_priv(wiphy); 2373 int err; 2374 2375 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2376 ieee80211_check_fast_xmit_all(local); 2377 2378 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2379 2380 if (err) { 2381 ieee80211_check_fast_xmit_all(local); 2382 return err; 2383 } 2384 } 2385 2386 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2387 (changed & WIPHY_PARAM_DYN_ACK)) { 2388 s16 coverage_class; 2389 2390 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2391 wiphy->coverage_class : -1; 2392 err = drv_set_coverage_class(local, coverage_class); 2393 2394 if (err) 2395 return err; 2396 } 2397 2398 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2399 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2400 2401 if (err) 2402 return err; 2403 } 2404 2405 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2406 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2407 return -EINVAL; 2408 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2409 } 2410 if (changed & WIPHY_PARAM_RETRY_LONG) { 2411 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2412 return -EINVAL; 2413 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2414 } 2415 if (changed & 2416 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2417 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2418 2419 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2420 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2421 WIPHY_PARAM_TXQ_QUANTUM)) 2422 ieee80211_txq_set_params(local); 2423 2424 return 0; 2425 } 2426 2427 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2428 struct wireless_dev *wdev, 2429 enum nl80211_tx_power_setting type, int mbm) 2430 { 2431 struct ieee80211_local *local = wiphy_priv(wiphy); 2432 struct ieee80211_sub_if_data *sdata; 2433 enum nl80211_tx_power_setting txp_type = type; 2434 bool update_txp_type = false; 2435 bool has_monitor = false; 2436 2437 if (wdev) { 2438 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2439 2440 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2441 sdata = rtnl_dereference(local->monitor_sdata); 2442 if (!sdata) 2443 return -EOPNOTSUPP; 2444 } 2445 2446 switch (type) { 2447 case NL80211_TX_POWER_AUTOMATIC: 2448 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2449 txp_type = NL80211_TX_POWER_LIMITED; 2450 break; 2451 case NL80211_TX_POWER_LIMITED: 2452 case NL80211_TX_POWER_FIXED: 2453 if (mbm < 0 || (mbm % 100)) 2454 return -EOPNOTSUPP; 2455 sdata->user_power_level = MBM_TO_DBM(mbm); 2456 break; 2457 } 2458 2459 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2460 update_txp_type = true; 2461 sdata->vif.bss_conf.txpower_type = txp_type; 2462 } 2463 2464 ieee80211_recalc_txpower(sdata, update_txp_type); 2465 2466 return 0; 2467 } 2468 2469 switch (type) { 2470 case NL80211_TX_POWER_AUTOMATIC: 2471 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2472 txp_type = NL80211_TX_POWER_LIMITED; 2473 break; 2474 case NL80211_TX_POWER_LIMITED: 2475 case NL80211_TX_POWER_FIXED: 2476 if (mbm < 0 || (mbm % 100)) 2477 return -EOPNOTSUPP; 2478 local->user_power_level = MBM_TO_DBM(mbm); 2479 break; 2480 } 2481 2482 mutex_lock(&local->iflist_mtx); 2483 list_for_each_entry(sdata, &local->interfaces, list) { 2484 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2485 has_monitor = true; 2486 continue; 2487 } 2488 sdata->user_power_level = local->user_power_level; 2489 if (txp_type != sdata->vif.bss_conf.txpower_type) 2490 update_txp_type = true; 2491 sdata->vif.bss_conf.txpower_type = txp_type; 2492 } 2493 list_for_each_entry(sdata, &local->interfaces, list) { 2494 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2495 continue; 2496 ieee80211_recalc_txpower(sdata, update_txp_type); 2497 } 2498 mutex_unlock(&local->iflist_mtx); 2499 2500 if (has_monitor) { 2501 sdata = rtnl_dereference(local->monitor_sdata); 2502 if (sdata) { 2503 sdata->user_power_level = local->user_power_level; 2504 if (txp_type != sdata->vif.bss_conf.txpower_type) 2505 update_txp_type = true; 2506 sdata->vif.bss_conf.txpower_type = txp_type; 2507 2508 ieee80211_recalc_txpower(sdata, update_txp_type); 2509 } 2510 } 2511 2512 return 0; 2513 } 2514 2515 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2516 struct wireless_dev *wdev, 2517 int *dbm) 2518 { 2519 struct ieee80211_local *local = wiphy_priv(wiphy); 2520 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2521 2522 if (local->ops->get_txpower) 2523 return drv_get_txpower(local, sdata, dbm); 2524 2525 if (!local->use_chanctx) 2526 *dbm = local->hw.conf.power_level; 2527 else 2528 *dbm = sdata->vif.bss_conf.txpower; 2529 2530 return 0; 2531 } 2532 2533 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2534 const u8 *addr) 2535 { 2536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2537 2538 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2539 2540 return 0; 2541 } 2542 2543 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2544 { 2545 struct ieee80211_local *local = wiphy_priv(wiphy); 2546 2547 drv_rfkill_poll(local); 2548 } 2549 2550 #ifdef CONFIG_NL80211_TESTMODE 2551 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2552 struct wireless_dev *wdev, 2553 void *data, int len) 2554 { 2555 struct ieee80211_local *local = wiphy_priv(wiphy); 2556 struct ieee80211_vif *vif = NULL; 2557 2558 if (!local->ops->testmode_cmd) 2559 return -EOPNOTSUPP; 2560 2561 if (wdev) { 2562 struct ieee80211_sub_if_data *sdata; 2563 2564 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2565 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2566 vif = &sdata->vif; 2567 } 2568 2569 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2570 } 2571 2572 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2573 struct sk_buff *skb, 2574 struct netlink_callback *cb, 2575 void *data, int len) 2576 { 2577 struct ieee80211_local *local = wiphy_priv(wiphy); 2578 2579 if (!local->ops->testmode_dump) 2580 return -EOPNOTSUPP; 2581 2582 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2583 } 2584 #endif 2585 2586 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2587 enum ieee80211_smps_mode smps_mode) 2588 { 2589 struct sta_info *sta; 2590 enum ieee80211_smps_mode old_req; 2591 2592 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2593 return -EINVAL; 2594 2595 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2596 return 0; 2597 2598 old_req = sdata->u.ap.req_smps; 2599 sdata->u.ap.req_smps = smps_mode; 2600 2601 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2602 if (old_req == smps_mode || 2603 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2604 return 0; 2605 2606 ht_dbg(sdata, 2607 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2608 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2609 2610 mutex_lock(&sdata->local->sta_mtx); 2611 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2612 /* 2613 * Only stations associated to our AP and 2614 * associated VLANs 2615 */ 2616 if (sta->sdata->bss != &sdata->u.ap) 2617 continue; 2618 2619 /* This station doesn't support MIMO - skip it */ 2620 if (sta_info_tx_streams(sta) == 1) 2621 continue; 2622 2623 /* 2624 * Don't wake up a STA just to send the action frame 2625 * unless we are getting more restrictive. 2626 */ 2627 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2628 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2629 smps_mode)) { 2630 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2631 sta->sta.addr); 2632 continue; 2633 } 2634 2635 /* 2636 * If the STA is not authorized, wait until it gets 2637 * authorized and the action frame will be sent then. 2638 */ 2639 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2640 continue; 2641 2642 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2643 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2644 sdata->vif.bss_conf.bssid); 2645 } 2646 mutex_unlock(&sdata->local->sta_mtx); 2647 2648 sdata->smps_mode = smps_mode; 2649 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2650 2651 return 0; 2652 } 2653 2654 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2655 enum ieee80211_smps_mode smps_mode) 2656 { 2657 const u8 *ap; 2658 enum ieee80211_smps_mode old_req; 2659 int err; 2660 struct sta_info *sta; 2661 bool tdls_peer_found = false; 2662 2663 lockdep_assert_held(&sdata->wdev.mtx); 2664 2665 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2666 return -EINVAL; 2667 2668 old_req = sdata->u.mgd.req_smps; 2669 sdata->u.mgd.req_smps = smps_mode; 2670 2671 if (old_req == smps_mode && 2672 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2673 return 0; 2674 2675 /* 2676 * If not associated, or current association is not an HT 2677 * association, there's no need to do anything, just store 2678 * the new value until we associate. 2679 */ 2680 if (!sdata->u.mgd.associated || 2681 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2682 return 0; 2683 2684 ap = sdata->u.mgd.associated->bssid; 2685 2686 rcu_read_lock(); 2687 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2688 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2689 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2690 continue; 2691 2692 tdls_peer_found = true; 2693 break; 2694 } 2695 rcu_read_unlock(); 2696 2697 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2698 if (tdls_peer_found || !sdata->u.mgd.powersave) 2699 smps_mode = IEEE80211_SMPS_OFF; 2700 else 2701 smps_mode = IEEE80211_SMPS_DYNAMIC; 2702 } 2703 2704 /* send SM PS frame to AP */ 2705 err = ieee80211_send_smps_action(sdata, smps_mode, 2706 ap, ap); 2707 if (err) 2708 sdata->u.mgd.req_smps = old_req; 2709 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2710 ieee80211_teardown_tdls_peers(sdata); 2711 2712 return err; 2713 } 2714 2715 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2716 bool enabled, int timeout) 2717 { 2718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2719 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2720 2721 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2722 return -EOPNOTSUPP; 2723 2724 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2725 return -EOPNOTSUPP; 2726 2727 if (enabled == sdata->u.mgd.powersave && 2728 timeout == local->dynamic_ps_forced_timeout) 2729 return 0; 2730 2731 sdata->u.mgd.powersave = enabled; 2732 local->dynamic_ps_forced_timeout = timeout; 2733 2734 /* no change, but if automatic follow powersave */ 2735 sdata_lock(sdata); 2736 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2737 sdata_unlock(sdata); 2738 2739 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2740 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2741 2742 ieee80211_recalc_ps(local); 2743 ieee80211_recalc_ps_vif(sdata); 2744 ieee80211_check_fast_rx_iface(sdata); 2745 2746 return 0; 2747 } 2748 2749 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2750 struct net_device *dev, 2751 s32 rssi_thold, u32 rssi_hyst) 2752 { 2753 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2754 struct ieee80211_vif *vif = &sdata->vif; 2755 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2756 2757 if (rssi_thold == bss_conf->cqm_rssi_thold && 2758 rssi_hyst == bss_conf->cqm_rssi_hyst) 2759 return 0; 2760 2761 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2762 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2763 return -EOPNOTSUPP; 2764 2765 bss_conf->cqm_rssi_thold = rssi_thold; 2766 bss_conf->cqm_rssi_hyst = rssi_hyst; 2767 bss_conf->cqm_rssi_low = 0; 2768 bss_conf->cqm_rssi_high = 0; 2769 sdata->u.mgd.last_cqm_event_signal = 0; 2770 2771 /* tell the driver upon association, unless already associated */ 2772 if (sdata->u.mgd.associated && 2773 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2774 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2775 2776 return 0; 2777 } 2778 2779 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2780 struct net_device *dev, 2781 s32 rssi_low, s32 rssi_high) 2782 { 2783 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2784 struct ieee80211_vif *vif = &sdata->vif; 2785 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2786 2787 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2788 return -EOPNOTSUPP; 2789 2790 bss_conf->cqm_rssi_low = rssi_low; 2791 bss_conf->cqm_rssi_high = rssi_high; 2792 bss_conf->cqm_rssi_thold = 0; 2793 bss_conf->cqm_rssi_hyst = 0; 2794 sdata->u.mgd.last_cqm_event_signal = 0; 2795 2796 /* tell the driver upon association, unless already associated */ 2797 if (sdata->u.mgd.associated && 2798 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2799 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2800 2801 return 0; 2802 } 2803 2804 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2805 struct net_device *dev, 2806 const u8 *addr, 2807 const struct cfg80211_bitrate_mask *mask) 2808 { 2809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2810 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2811 int i, ret; 2812 2813 if (!ieee80211_sdata_running(sdata)) 2814 return -ENETDOWN; 2815 2816 /* 2817 * If active validate the setting and reject it if it doesn't leave 2818 * at least one basic rate usable, since we really have to be able 2819 * to send something, and if we're an AP we have to be able to do 2820 * so at a basic rate so that all clients can receive it. 2821 */ 2822 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2823 sdata->vif.bss_conf.chandef.chan) { 2824 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2825 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2826 2827 if (!(mask->control[band].legacy & basic_rates)) 2828 return -EINVAL; 2829 } 2830 2831 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2832 ret = drv_set_bitrate_mask(local, sdata, mask); 2833 if (ret) 2834 return ret; 2835 } 2836 2837 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2838 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2839 int j; 2840 2841 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2842 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2843 sizeof(mask->control[i].ht_mcs)); 2844 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2845 mask->control[i].vht_mcs, 2846 sizeof(mask->control[i].vht_mcs)); 2847 2848 sdata->rc_has_mcs_mask[i] = false; 2849 sdata->rc_has_vht_mcs_mask[i] = false; 2850 if (!sband) 2851 continue; 2852 2853 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2854 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2855 sdata->rc_has_mcs_mask[i] = true; 2856 break; 2857 } 2858 } 2859 2860 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2861 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2862 sdata->rc_has_vht_mcs_mask[i] = true; 2863 break; 2864 } 2865 } 2866 } 2867 2868 return 0; 2869 } 2870 2871 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2872 struct net_device *dev, 2873 struct cfg80211_chan_def *chandef, 2874 u32 cac_time_ms) 2875 { 2876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2877 struct ieee80211_local *local = sdata->local; 2878 int err; 2879 2880 mutex_lock(&local->mtx); 2881 if (!list_empty(&local->roc_list) || local->scanning) { 2882 err = -EBUSY; 2883 goto out_unlock; 2884 } 2885 2886 /* whatever, but channel contexts should not complain about that one */ 2887 sdata->smps_mode = IEEE80211_SMPS_OFF; 2888 sdata->needed_rx_chains = local->rx_chains; 2889 2890 err = ieee80211_vif_use_channel(sdata, chandef, 2891 IEEE80211_CHANCTX_SHARED); 2892 if (err) 2893 goto out_unlock; 2894 2895 ieee80211_queue_delayed_work(&sdata->local->hw, 2896 &sdata->dfs_cac_timer_work, 2897 msecs_to_jiffies(cac_time_ms)); 2898 2899 out_unlock: 2900 mutex_unlock(&local->mtx); 2901 return err; 2902 } 2903 2904 static struct cfg80211_beacon_data * 2905 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2906 { 2907 struct cfg80211_beacon_data *new_beacon; 2908 u8 *pos; 2909 int len; 2910 2911 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2912 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2913 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2914 2915 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2916 if (!new_beacon) 2917 return NULL; 2918 2919 pos = (u8 *)(new_beacon + 1); 2920 if (beacon->head_len) { 2921 new_beacon->head_len = beacon->head_len; 2922 new_beacon->head = pos; 2923 memcpy(pos, beacon->head, beacon->head_len); 2924 pos += beacon->head_len; 2925 } 2926 if (beacon->tail_len) { 2927 new_beacon->tail_len = beacon->tail_len; 2928 new_beacon->tail = pos; 2929 memcpy(pos, beacon->tail, beacon->tail_len); 2930 pos += beacon->tail_len; 2931 } 2932 if (beacon->beacon_ies_len) { 2933 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2934 new_beacon->beacon_ies = pos; 2935 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2936 pos += beacon->beacon_ies_len; 2937 } 2938 if (beacon->proberesp_ies_len) { 2939 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2940 new_beacon->proberesp_ies = pos; 2941 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2942 pos += beacon->proberesp_ies_len; 2943 } 2944 if (beacon->assocresp_ies_len) { 2945 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2946 new_beacon->assocresp_ies = pos; 2947 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2948 pos += beacon->assocresp_ies_len; 2949 } 2950 if (beacon->probe_resp_len) { 2951 new_beacon->probe_resp_len = beacon->probe_resp_len; 2952 new_beacon->probe_resp = pos; 2953 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2954 pos += beacon->probe_resp_len; 2955 } 2956 2957 /* might copy -1, meaning no changes requested */ 2958 new_beacon->ftm_responder = beacon->ftm_responder; 2959 if (beacon->lci) { 2960 new_beacon->lci_len = beacon->lci_len; 2961 new_beacon->lci = pos; 2962 memcpy(pos, beacon->lci, beacon->lci_len); 2963 pos += beacon->lci_len; 2964 } 2965 if (beacon->civicloc) { 2966 new_beacon->civicloc_len = beacon->civicloc_len; 2967 new_beacon->civicloc = pos; 2968 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2969 pos += beacon->civicloc_len; 2970 } 2971 2972 return new_beacon; 2973 } 2974 2975 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2976 { 2977 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2978 2979 ieee80211_queue_work(&sdata->local->hw, 2980 &sdata->csa_finalize_work); 2981 } 2982 EXPORT_SYMBOL(ieee80211_csa_finish); 2983 2984 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2985 u32 *changed) 2986 { 2987 int err; 2988 2989 switch (sdata->vif.type) { 2990 case NL80211_IFTYPE_AP: 2991 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2992 NULL); 2993 kfree(sdata->u.ap.next_beacon); 2994 sdata->u.ap.next_beacon = NULL; 2995 2996 if (err < 0) 2997 return err; 2998 *changed |= err; 2999 break; 3000 case NL80211_IFTYPE_ADHOC: 3001 err = ieee80211_ibss_finish_csa(sdata); 3002 if (err < 0) 3003 return err; 3004 *changed |= err; 3005 break; 3006 #ifdef CONFIG_MAC80211_MESH 3007 case NL80211_IFTYPE_MESH_POINT: 3008 err = ieee80211_mesh_finish_csa(sdata); 3009 if (err < 0) 3010 return err; 3011 *changed |= err; 3012 break; 3013 #endif 3014 default: 3015 WARN_ON(1); 3016 return -EINVAL; 3017 } 3018 3019 return 0; 3020 } 3021 3022 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3023 { 3024 struct ieee80211_local *local = sdata->local; 3025 u32 changed = 0; 3026 int err; 3027 3028 sdata_assert_lock(sdata); 3029 lockdep_assert_held(&local->mtx); 3030 lockdep_assert_held(&local->chanctx_mtx); 3031 3032 /* 3033 * using reservation isn't immediate as it may be deferred until later 3034 * with multi-vif. once reservation is complete it will re-schedule the 3035 * work with no reserved_chanctx so verify chandef to check if it 3036 * completed successfully 3037 */ 3038 3039 if (sdata->reserved_chanctx) { 3040 /* 3041 * with multi-vif csa driver may call ieee80211_csa_finish() 3042 * many times while waiting for other interfaces to use their 3043 * reservations 3044 */ 3045 if (sdata->reserved_ready) 3046 return 0; 3047 3048 return ieee80211_vif_use_reserved_context(sdata); 3049 } 3050 3051 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3052 &sdata->csa_chandef)) 3053 return -EINVAL; 3054 3055 sdata->vif.csa_active = false; 3056 3057 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3058 if (err) 3059 return err; 3060 3061 ieee80211_bss_info_change_notify(sdata, changed); 3062 3063 if (sdata->csa_block_tx) { 3064 ieee80211_wake_vif_queues(local, sdata, 3065 IEEE80211_QUEUE_STOP_REASON_CSA); 3066 sdata->csa_block_tx = false; 3067 } 3068 3069 err = drv_post_channel_switch(sdata); 3070 if (err) 3071 return err; 3072 3073 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3074 3075 return 0; 3076 } 3077 3078 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3079 { 3080 if (__ieee80211_csa_finalize(sdata)) { 3081 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3082 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3083 GFP_KERNEL); 3084 } 3085 } 3086 3087 void ieee80211_csa_finalize_work(struct work_struct *work) 3088 { 3089 struct ieee80211_sub_if_data *sdata = 3090 container_of(work, struct ieee80211_sub_if_data, 3091 csa_finalize_work); 3092 struct ieee80211_local *local = sdata->local; 3093 3094 sdata_lock(sdata); 3095 mutex_lock(&local->mtx); 3096 mutex_lock(&local->chanctx_mtx); 3097 3098 /* AP might have been stopped while waiting for the lock. */ 3099 if (!sdata->vif.csa_active) 3100 goto unlock; 3101 3102 if (!ieee80211_sdata_running(sdata)) 3103 goto unlock; 3104 3105 ieee80211_csa_finalize(sdata); 3106 3107 unlock: 3108 mutex_unlock(&local->chanctx_mtx); 3109 mutex_unlock(&local->mtx); 3110 sdata_unlock(sdata); 3111 } 3112 3113 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3114 struct cfg80211_csa_settings *params, 3115 u32 *changed) 3116 { 3117 struct ieee80211_csa_settings csa = {}; 3118 int err; 3119 3120 switch (sdata->vif.type) { 3121 case NL80211_IFTYPE_AP: 3122 sdata->u.ap.next_beacon = 3123 cfg80211_beacon_dup(¶ms->beacon_after); 3124 if (!sdata->u.ap.next_beacon) 3125 return -ENOMEM; 3126 3127 /* 3128 * With a count of 0, we don't have to wait for any 3129 * TBTT before switching, so complete the CSA 3130 * immediately. In theory, with a count == 1 we 3131 * should delay the switch until just before the next 3132 * TBTT, but that would complicate things so we switch 3133 * immediately too. If we would delay the switch 3134 * until the next TBTT, we would have to set the probe 3135 * response here. 3136 * 3137 * TODO: A channel switch with count <= 1 without 3138 * sending a CSA action frame is kind of useless, 3139 * because the clients won't know we're changing 3140 * channels. The action frame must be implemented 3141 * either here or in the userspace. 3142 */ 3143 if (params->count <= 1) 3144 break; 3145 3146 if ((params->n_counter_offsets_beacon > 3147 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3148 (params->n_counter_offsets_presp > 3149 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3150 return -EINVAL; 3151 3152 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3153 csa.counter_offsets_presp = params->counter_offsets_presp; 3154 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3155 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3156 csa.count = params->count; 3157 3158 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3159 if (err < 0) { 3160 kfree(sdata->u.ap.next_beacon); 3161 return err; 3162 } 3163 *changed |= err; 3164 3165 break; 3166 case NL80211_IFTYPE_ADHOC: 3167 if (!sdata->vif.bss_conf.ibss_joined) 3168 return -EINVAL; 3169 3170 if (params->chandef.width != sdata->u.ibss.chandef.width) 3171 return -EINVAL; 3172 3173 switch (params->chandef.width) { 3174 case NL80211_CHAN_WIDTH_40: 3175 if (cfg80211_get_chandef_type(¶ms->chandef) != 3176 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3177 return -EINVAL; 3178 case NL80211_CHAN_WIDTH_5: 3179 case NL80211_CHAN_WIDTH_10: 3180 case NL80211_CHAN_WIDTH_20_NOHT: 3181 case NL80211_CHAN_WIDTH_20: 3182 break; 3183 default: 3184 return -EINVAL; 3185 } 3186 3187 /* changes into another band are not supported */ 3188 if (sdata->u.ibss.chandef.chan->band != 3189 params->chandef.chan->band) 3190 return -EINVAL; 3191 3192 /* see comments in the NL80211_IFTYPE_AP block */ 3193 if (params->count > 1) { 3194 err = ieee80211_ibss_csa_beacon(sdata, params); 3195 if (err < 0) 3196 return err; 3197 *changed |= err; 3198 } 3199 3200 ieee80211_send_action_csa(sdata, params); 3201 3202 break; 3203 #ifdef CONFIG_MAC80211_MESH 3204 case NL80211_IFTYPE_MESH_POINT: { 3205 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3206 3207 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3208 return -EINVAL; 3209 3210 /* changes into another band are not supported */ 3211 if (sdata->vif.bss_conf.chandef.chan->band != 3212 params->chandef.chan->band) 3213 return -EINVAL; 3214 3215 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3216 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3217 if (!ifmsh->pre_value) 3218 ifmsh->pre_value = 1; 3219 else 3220 ifmsh->pre_value++; 3221 } 3222 3223 /* see comments in the NL80211_IFTYPE_AP block */ 3224 if (params->count > 1) { 3225 err = ieee80211_mesh_csa_beacon(sdata, params); 3226 if (err < 0) { 3227 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3228 return err; 3229 } 3230 *changed |= err; 3231 } 3232 3233 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3234 ieee80211_send_action_csa(sdata, params); 3235 3236 break; 3237 } 3238 #endif 3239 default: 3240 return -EOPNOTSUPP; 3241 } 3242 3243 return 0; 3244 } 3245 3246 static int 3247 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3248 struct cfg80211_csa_settings *params) 3249 { 3250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3251 struct ieee80211_local *local = sdata->local; 3252 struct ieee80211_channel_switch ch_switch; 3253 struct ieee80211_chanctx_conf *conf; 3254 struct ieee80211_chanctx *chanctx; 3255 u32 changed = 0; 3256 int err; 3257 3258 sdata_assert_lock(sdata); 3259 lockdep_assert_held(&local->mtx); 3260 3261 if (!list_empty(&local->roc_list) || local->scanning) 3262 return -EBUSY; 3263 3264 if (sdata->wdev.cac_started) 3265 return -EBUSY; 3266 3267 if (cfg80211_chandef_identical(¶ms->chandef, 3268 &sdata->vif.bss_conf.chandef)) 3269 return -EINVAL; 3270 3271 /* don't allow another channel switch if one is already active. */ 3272 if (sdata->vif.csa_active) 3273 return -EBUSY; 3274 3275 mutex_lock(&local->chanctx_mtx); 3276 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3277 lockdep_is_held(&local->chanctx_mtx)); 3278 if (!conf) { 3279 err = -EBUSY; 3280 goto out; 3281 } 3282 3283 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3284 3285 ch_switch.timestamp = 0; 3286 ch_switch.device_timestamp = 0; 3287 ch_switch.block_tx = params->block_tx; 3288 ch_switch.chandef = params->chandef; 3289 ch_switch.count = params->count; 3290 3291 err = drv_pre_channel_switch(sdata, &ch_switch); 3292 if (err) 3293 goto out; 3294 3295 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3296 chanctx->mode, 3297 params->radar_required); 3298 if (err) 3299 goto out; 3300 3301 /* if reservation is invalid then this will fail */ 3302 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3303 if (err) { 3304 ieee80211_vif_unreserve_chanctx(sdata); 3305 goto out; 3306 } 3307 3308 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3309 if (err) { 3310 ieee80211_vif_unreserve_chanctx(sdata); 3311 goto out; 3312 } 3313 3314 sdata->csa_chandef = params->chandef; 3315 sdata->csa_block_tx = params->block_tx; 3316 sdata->vif.csa_active = true; 3317 3318 if (sdata->csa_block_tx) 3319 ieee80211_stop_vif_queues(local, sdata, 3320 IEEE80211_QUEUE_STOP_REASON_CSA); 3321 3322 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3323 params->count); 3324 3325 if (changed) { 3326 ieee80211_bss_info_change_notify(sdata, changed); 3327 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3328 } else { 3329 /* if the beacon didn't change, we can finalize immediately */ 3330 ieee80211_csa_finalize(sdata); 3331 } 3332 3333 out: 3334 mutex_unlock(&local->chanctx_mtx); 3335 return err; 3336 } 3337 3338 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3339 struct cfg80211_csa_settings *params) 3340 { 3341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3342 struct ieee80211_local *local = sdata->local; 3343 int err; 3344 3345 mutex_lock(&local->mtx); 3346 err = __ieee80211_channel_switch(wiphy, dev, params); 3347 mutex_unlock(&local->mtx); 3348 3349 return err; 3350 } 3351 3352 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3353 { 3354 lockdep_assert_held(&local->mtx); 3355 3356 local->roc_cookie_counter++; 3357 3358 /* wow, you wrapped 64 bits ... more likely a bug */ 3359 if (WARN_ON(local->roc_cookie_counter == 0)) 3360 local->roc_cookie_counter++; 3361 3362 return local->roc_cookie_counter; 3363 } 3364 3365 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3366 u64 *cookie, gfp_t gfp) 3367 { 3368 unsigned long spin_flags; 3369 struct sk_buff *ack_skb; 3370 int id; 3371 3372 ack_skb = skb_copy(skb, gfp); 3373 if (!ack_skb) 3374 return -ENOMEM; 3375 3376 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3377 id = idr_alloc(&local->ack_status_frames, ack_skb, 3378 1, 0x10000, GFP_ATOMIC); 3379 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3380 3381 if (id < 0) { 3382 kfree_skb(ack_skb); 3383 return -ENOMEM; 3384 } 3385 3386 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3387 3388 *cookie = ieee80211_mgmt_tx_cookie(local); 3389 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3390 3391 return 0; 3392 } 3393 3394 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3395 struct wireless_dev *wdev, 3396 u16 frame_type, bool reg) 3397 { 3398 struct ieee80211_local *local = wiphy_priv(wiphy); 3399 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3400 3401 switch (frame_type) { 3402 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3403 if (reg) { 3404 local->probe_req_reg++; 3405 sdata->vif.probe_req_reg++; 3406 } else { 3407 if (local->probe_req_reg) 3408 local->probe_req_reg--; 3409 3410 if (sdata->vif.probe_req_reg) 3411 sdata->vif.probe_req_reg--; 3412 } 3413 3414 if (!local->open_count) 3415 break; 3416 3417 if (sdata->vif.probe_req_reg == 1) 3418 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3419 FIF_PROBE_REQ); 3420 else if (sdata->vif.probe_req_reg == 0) 3421 drv_config_iface_filter(local, sdata, 0, 3422 FIF_PROBE_REQ); 3423 3424 ieee80211_configure_filter(local); 3425 break; 3426 default: 3427 break; 3428 } 3429 } 3430 3431 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3432 { 3433 struct ieee80211_local *local = wiphy_priv(wiphy); 3434 3435 if (local->started) 3436 return -EOPNOTSUPP; 3437 3438 return drv_set_antenna(local, tx_ant, rx_ant); 3439 } 3440 3441 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3442 { 3443 struct ieee80211_local *local = wiphy_priv(wiphy); 3444 3445 return drv_get_antenna(local, tx_ant, rx_ant); 3446 } 3447 3448 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3449 struct net_device *dev, 3450 struct cfg80211_gtk_rekey_data *data) 3451 { 3452 struct ieee80211_local *local = wiphy_priv(wiphy); 3453 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3454 3455 if (!local->ops->set_rekey_data) 3456 return -EOPNOTSUPP; 3457 3458 drv_set_rekey_data(local, sdata, data); 3459 3460 return 0; 3461 } 3462 3463 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3464 const u8 *peer, u64 *cookie) 3465 { 3466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3467 struct ieee80211_local *local = sdata->local; 3468 struct ieee80211_qos_hdr *nullfunc; 3469 struct sk_buff *skb; 3470 int size = sizeof(*nullfunc); 3471 __le16 fc; 3472 bool qos; 3473 struct ieee80211_tx_info *info; 3474 struct sta_info *sta; 3475 struct ieee80211_chanctx_conf *chanctx_conf; 3476 enum nl80211_band band; 3477 int ret; 3478 3479 /* the lock is needed to assign the cookie later */ 3480 mutex_lock(&local->mtx); 3481 3482 rcu_read_lock(); 3483 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3484 if (WARN_ON(!chanctx_conf)) { 3485 ret = -EINVAL; 3486 goto unlock; 3487 } 3488 band = chanctx_conf->def.chan->band; 3489 sta = sta_info_get_bss(sdata, peer); 3490 if (sta) { 3491 qos = sta->sta.wme; 3492 } else { 3493 ret = -ENOLINK; 3494 goto unlock; 3495 } 3496 3497 if (qos) { 3498 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3499 IEEE80211_STYPE_QOS_NULLFUNC | 3500 IEEE80211_FCTL_FROMDS); 3501 } else { 3502 size -= 2; 3503 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3504 IEEE80211_STYPE_NULLFUNC | 3505 IEEE80211_FCTL_FROMDS); 3506 } 3507 3508 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3509 if (!skb) { 3510 ret = -ENOMEM; 3511 goto unlock; 3512 } 3513 3514 skb->dev = dev; 3515 3516 skb_reserve(skb, local->hw.extra_tx_headroom); 3517 3518 nullfunc = skb_put(skb, size); 3519 nullfunc->frame_control = fc; 3520 nullfunc->duration_id = 0; 3521 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3522 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3523 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3524 nullfunc->seq_ctrl = 0; 3525 3526 info = IEEE80211_SKB_CB(skb); 3527 3528 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3529 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3530 info->band = band; 3531 3532 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3533 skb->priority = 7; 3534 if (qos) 3535 nullfunc->qos_ctrl = cpu_to_le16(7); 3536 3537 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3538 if (ret) { 3539 kfree_skb(skb); 3540 goto unlock; 3541 } 3542 3543 local_bh_disable(); 3544 ieee80211_xmit(sdata, sta, skb, 0); 3545 local_bh_enable(); 3546 3547 ret = 0; 3548 unlock: 3549 rcu_read_unlock(); 3550 mutex_unlock(&local->mtx); 3551 3552 return ret; 3553 } 3554 3555 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3556 struct wireless_dev *wdev, 3557 struct cfg80211_chan_def *chandef) 3558 { 3559 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3560 struct ieee80211_local *local = wiphy_priv(wiphy); 3561 struct ieee80211_chanctx_conf *chanctx_conf; 3562 int ret = -ENODATA; 3563 3564 rcu_read_lock(); 3565 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3566 if (chanctx_conf) { 3567 *chandef = sdata->vif.bss_conf.chandef; 3568 ret = 0; 3569 } else if (local->open_count > 0 && 3570 local->open_count == local->monitors && 3571 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3572 if (local->use_chanctx) 3573 *chandef = local->monitor_chandef; 3574 else 3575 *chandef = local->_oper_chandef; 3576 ret = 0; 3577 } 3578 rcu_read_unlock(); 3579 3580 return ret; 3581 } 3582 3583 #ifdef CONFIG_PM 3584 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3585 { 3586 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3587 } 3588 #endif 3589 3590 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3591 struct net_device *dev, 3592 struct cfg80211_qos_map *qos_map) 3593 { 3594 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3595 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3596 3597 if (qos_map) { 3598 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3599 if (!new_qos_map) 3600 return -ENOMEM; 3601 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3602 } else { 3603 /* A NULL qos_map was passed to disable QoS mapping */ 3604 new_qos_map = NULL; 3605 } 3606 3607 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3608 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3609 if (old_qos_map) 3610 kfree_rcu(old_qos_map, rcu_head); 3611 3612 return 0; 3613 } 3614 3615 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3616 struct net_device *dev, 3617 struct cfg80211_chan_def *chandef) 3618 { 3619 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3620 int ret; 3621 u32 changed = 0; 3622 3623 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3624 if (ret == 0) 3625 ieee80211_bss_info_change_notify(sdata, changed); 3626 3627 return ret; 3628 } 3629 3630 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3631 u8 tsid, const u8 *peer, u8 up, 3632 u16 admitted_time) 3633 { 3634 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3635 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3636 int ac = ieee802_1d_to_ac[up]; 3637 3638 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3639 return -EOPNOTSUPP; 3640 3641 if (!(sdata->wmm_acm & BIT(up))) 3642 return -EINVAL; 3643 3644 if (ifmgd->tx_tspec[ac].admitted_time) 3645 return -EBUSY; 3646 3647 if (admitted_time) { 3648 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3649 ifmgd->tx_tspec[ac].tsid = tsid; 3650 ifmgd->tx_tspec[ac].up = up; 3651 } 3652 3653 return 0; 3654 } 3655 3656 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3657 u8 tsid, const u8 *peer) 3658 { 3659 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3660 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3661 struct ieee80211_local *local = wiphy_priv(wiphy); 3662 int ac; 3663 3664 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3665 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3666 3667 /* skip unused entries */ 3668 if (!tx_tspec->admitted_time) 3669 continue; 3670 3671 if (tx_tspec->tsid != tsid) 3672 continue; 3673 3674 /* due to this new packets will be reassigned to non-ACM ACs */ 3675 tx_tspec->up = -1; 3676 3677 /* Make sure that all packets have been sent to avoid to 3678 * restore the QoS params on packets that are still on the 3679 * queues. 3680 */ 3681 synchronize_net(); 3682 ieee80211_flush_queues(local, sdata, false); 3683 3684 /* restore the normal QoS parameters 3685 * (unconditionally to avoid races) 3686 */ 3687 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3688 tx_tspec->downgraded = false; 3689 ieee80211_sta_handle_tspec_ac_params(sdata); 3690 3691 /* finally clear all the data */ 3692 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3693 3694 return 0; 3695 } 3696 3697 return -ENOENT; 3698 } 3699 3700 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3701 u8 inst_id, 3702 enum nl80211_nan_func_term_reason reason, 3703 gfp_t gfp) 3704 { 3705 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3706 struct cfg80211_nan_func *func; 3707 u64 cookie; 3708 3709 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3710 return; 3711 3712 spin_lock_bh(&sdata->u.nan.func_lock); 3713 3714 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3715 if (WARN_ON(!func)) { 3716 spin_unlock_bh(&sdata->u.nan.func_lock); 3717 return; 3718 } 3719 3720 cookie = func->cookie; 3721 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3722 3723 spin_unlock_bh(&sdata->u.nan.func_lock); 3724 3725 cfg80211_free_nan_func(func); 3726 3727 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3728 reason, cookie, gfp); 3729 } 3730 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3731 3732 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3733 struct cfg80211_nan_match_params *match, 3734 gfp_t gfp) 3735 { 3736 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3737 struct cfg80211_nan_func *func; 3738 3739 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3740 return; 3741 3742 spin_lock_bh(&sdata->u.nan.func_lock); 3743 3744 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3745 if (WARN_ON(!func)) { 3746 spin_unlock_bh(&sdata->u.nan.func_lock); 3747 return; 3748 } 3749 match->cookie = func->cookie; 3750 3751 spin_unlock_bh(&sdata->u.nan.func_lock); 3752 3753 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3754 } 3755 EXPORT_SYMBOL(ieee80211_nan_func_match); 3756 3757 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3758 struct net_device *dev, 3759 const bool enabled) 3760 { 3761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3762 3763 sdata->u.ap.multicast_to_unicast = enabled; 3764 3765 return 0; 3766 } 3767 3768 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3769 struct txq_info *txqi) 3770 { 3771 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3772 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3773 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3774 } 3775 3776 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3777 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3778 txqstats->backlog_packets = txqi->tin.backlog_packets; 3779 } 3780 3781 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3782 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3783 txqstats->flows = txqi->tin.flows; 3784 } 3785 3786 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3787 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3788 txqstats->drops = txqi->cstats.drop_count; 3789 } 3790 3791 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3792 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3793 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3794 } 3795 3796 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3797 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3798 txqstats->overlimit = txqi->tin.overlimit; 3799 } 3800 3801 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3802 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3803 txqstats->collisions = txqi->tin.collisions; 3804 } 3805 3806 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3807 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3808 txqstats->tx_bytes = txqi->tin.tx_bytes; 3809 } 3810 3811 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3812 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3813 txqstats->tx_packets = txqi->tin.tx_packets; 3814 } 3815 } 3816 3817 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3818 struct wireless_dev *wdev, 3819 struct cfg80211_txq_stats *txqstats) 3820 { 3821 struct ieee80211_local *local = wiphy_priv(wiphy); 3822 struct ieee80211_sub_if_data *sdata; 3823 int ret = 0; 3824 3825 if (!local->ops->wake_tx_queue) 3826 return 1; 3827 3828 spin_lock_bh(&local->fq.lock); 3829 rcu_read_lock(); 3830 3831 if (wdev) { 3832 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3833 if (!sdata->vif.txq) { 3834 ret = 1; 3835 goto out; 3836 } 3837 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3838 } else { 3839 /* phy stats */ 3840 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3841 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3842 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3843 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3844 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3845 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3846 txqstats->backlog_packets = local->fq.backlog; 3847 txqstats->backlog_bytes = local->fq.memory_usage; 3848 txqstats->overlimit = local->fq.overlimit; 3849 txqstats->overmemory = local->fq.overmemory; 3850 txqstats->collisions = local->fq.collisions; 3851 txqstats->max_flows = local->fq.flows_cnt; 3852 } 3853 3854 out: 3855 rcu_read_unlock(); 3856 spin_unlock_bh(&local->fq.lock); 3857 3858 return ret; 3859 } 3860 3861 static int 3862 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3863 struct net_device *dev, 3864 struct cfg80211_ftm_responder_stats *ftm_stats) 3865 { 3866 struct ieee80211_local *local = wiphy_priv(wiphy); 3867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3868 3869 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3870 } 3871 3872 static int 3873 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3874 struct cfg80211_pmsr_request *request) 3875 { 3876 struct ieee80211_local *local = wiphy_priv(wiphy); 3877 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3878 3879 return drv_start_pmsr(local, sdata, request); 3880 } 3881 3882 static void 3883 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3884 struct cfg80211_pmsr_request *request) 3885 { 3886 struct ieee80211_local *local = wiphy_priv(wiphy); 3887 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3888 3889 return drv_abort_pmsr(local, sdata, request); 3890 } 3891 3892 const struct cfg80211_ops mac80211_config_ops = { 3893 .add_virtual_intf = ieee80211_add_iface, 3894 .del_virtual_intf = ieee80211_del_iface, 3895 .change_virtual_intf = ieee80211_change_iface, 3896 .start_p2p_device = ieee80211_start_p2p_device, 3897 .stop_p2p_device = ieee80211_stop_p2p_device, 3898 .add_key = ieee80211_add_key, 3899 .del_key = ieee80211_del_key, 3900 .get_key = ieee80211_get_key, 3901 .set_default_key = ieee80211_config_default_key, 3902 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3903 .start_ap = ieee80211_start_ap, 3904 .change_beacon = ieee80211_change_beacon, 3905 .stop_ap = ieee80211_stop_ap, 3906 .add_station = ieee80211_add_station, 3907 .del_station = ieee80211_del_station, 3908 .change_station = ieee80211_change_station, 3909 .get_station = ieee80211_get_station, 3910 .dump_station = ieee80211_dump_station, 3911 .dump_survey = ieee80211_dump_survey, 3912 #ifdef CONFIG_MAC80211_MESH 3913 .add_mpath = ieee80211_add_mpath, 3914 .del_mpath = ieee80211_del_mpath, 3915 .change_mpath = ieee80211_change_mpath, 3916 .get_mpath = ieee80211_get_mpath, 3917 .dump_mpath = ieee80211_dump_mpath, 3918 .get_mpp = ieee80211_get_mpp, 3919 .dump_mpp = ieee80211_dump_mpp, 3920 .update_mesh_config = ieee80211_update_mesh_config, 3921 .get_mesh_config = ieee80211_get_mesh_config, 3922 .join_mesh = ieee80211_join_mesh, 3923 .leave_mesh = ieee80211_leave_mesh, 3924 #endif 3925 .join_ocb = ieee80211_join_ocb, 3926 .leave_ocb = ieee80211_leave_ocb, 3927 .change_bss = ieee80211_change_bss, 3928 .set_txq_params = ieee80211_set_txq_params, 3929 .set_monitor_channel = ieee80211_set_monitor_channel, 3930 .suspend = ieee80211_suspend, 3931 .resume = ieee80211_resume, 3932 .scan = ieee80211_scan, 3933 .abort_scan = ieee80211_abort_scan, 3934 .sched_scan_start = ieee80211_sched_scan_start, 3935 .sched_scan_stop = ieee80211_sched_scan_stop, 3936 .auth = ieee80211_auth, 3937 .assoc = ieee80211_assoc, 3938 .deauth = ieee80211_deauth, 3939 .disassoc = ieee80211_disassoc, 3940 .join_ibss = ieee80211_join_ibss, 3941 .leave_ibss = ieee80211_leave_ibss, 3942 .set_mcast_rate = ieee80211_set_mcast_rate, 3943 .set_wiphy_params = ieee80211_set_wiphy_params, 3944 .set_tx_power = ieee80211_set_tx_power, 3945 .get_tx_power = ieee80211_get_tx_power, 3946 .set_wds_peer = ieee80211_set_wds_peer, 3947 .rfkill_poll = ieee80211_rfkill_poll, 3948 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3949 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3950 .set_power_mgmt = ieee80211_set_power_mgmt, 3951 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3952 .remain_on_channel = ieee80211_remain_on_channel, 3953 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3954 .mgmt_tx = ieee80211_mgmt_tx, 3955 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3956 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3957 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3958 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3959 .set_antenna = ieee80211_set_antenna, 3960 .get_antenna = ieee80211_get_antenna, 3961 .set_rekey_data = ieee80211_set_rekey_data, 3962 .tdls_oper = ieee80211_tdls_oper, 3963 .tdls_mgmt = ieee80211_tdls_mgmt, 3964 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3965 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3966 .probe_client = ieee80211_probe_client, 3967 .set_noack_map = ieee80211_set_noack_map, 3968 #ifdef CONFIG_PM 3969 .set_wakeup = ieee80211_set_wakeup, 3970 #endif 3971 .get_channel = ieee80211_cfg_get_channel, 3972 .start_radar_detection = ieee80211_start_radar_detection, 3973 .channel_switch = ieee80211_channel_switch, 3974 .set_qos_map = ieee80211_set_qos_map, 3975 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3976 .add_tx_ts = ieee80211_add_tx_ts, 3977 .del_tx_ts = ieee80211_del_tx_ts, 3978 .start_nan = ieee80211_start_nan, 3979 .stop_nan = ieee80211_stop_nan, 3980 .nan_change_conf = ieee80211_nan_change_conf, 3981 .add_nan_func = ieee80211_add_nan_func, 3982 .del_nan_func = ieee80211_del_nan_func, 3983 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3984 .tx_control_port = ieee80211_tx_control_port, 3985 .get_txq_stats = ieee80211_get_txq_stats, 3986 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3987 .start_pmsr = ieee80211_start_pmsr, 3988 .abort_pmsr = ieee80211_abort_pmsr, 3989 }; 3990