1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2019 Intel Corporation 9 * Copyright (C) 2018 Intel Corporation 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/fips.h> 19 #include <linux/if_ether.h> 20 #include <net/cfg80211.h> 21 #include "ieee80211_i.h" 22 #include "driver-ops.h" 23 #include "rate.h" 24 #include "mesh.h" 25 #include "wme.h" 26 27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 28 struct vif_params *params) 29 { 30 bool mu_mimo_groups = false; 31 bool mu_mimo_follow = false; 32 33 if (params->vht_mumimo_groups) { 34 u64 membership; 35 36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 37 38 memcpy(sdata->vif.bss_conf.mu_group.membership, 39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 40 memcpy(sdata->vif.bss_conf.mu_group.position, 41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 42 WLAN_USER_POSITION_LEN); 43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = rtnl_dereference(local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 116 const char *name, 117 unsigned char name_assign_type, 118 enum nl80211_iftype type, 119 struct vif_params *params) 120 { 121 struct ieee80211_local *local = wiphy_priv(wiphy); 122 struct wireless_dev *wdev; 123 struct ieee80211_sub_if_data *sdata; 124 int err; 125 126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 127 if (err) 128 return ERR_PTR(err); 129 130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 131 132 if (type == NL80211_IFTYPE_MONITOR) { 133 err = ieee80211_set_mon_options(sdata, params); 134 if (err) { 135 ieee80211_if_remove(sdata); 136 return NULL; 137 } 138 } 139 140 return wdev; 141 } 142 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 146 147 return 0; 148 } 149 150 static int ieee80211_change_iface(struct wiphy *wiphy, 151 struct net_device *dev, 152 enum nl80211_iftype type, 153 struct vif_params *params) 154 { 155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 156 int ret; 157 158 ret = ieee80211_if_change_type(sdata, type); 159 if (ret) 160 return ret; 161 162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 356 const u8 *mac_addr, u8 key_idx) 357 { 358 struct ieee80211_local *local = sdata->local; 359 struct ieee80211_key *key; 360 struct sta_info *sta; 361 int ret = -EINVAL; 362 363 if (!wiphy_ext_feature_isset(local->hw.wiphy, 364 NL80211_EXT_FEATURE_EXT_KEY_ID)) 365 return -EINVAL; 366 367 sta = sta_info_get_bss(sdata, mac_addr); 368 369 if (!sta) 370 return -EINVAL; 371 372 if (sta->ptk_idx == key_idx) 373 return 0; 374 375 mutex_lock(&local->key_mtx); 376 key = key_mtx_dereference(local, sta->ptk[key_idx]); 377 378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 379 ret = ieee80211_set_tx_key(key); 380 381 mutex_unlock(&local->key_mtx); 382 return ret; 383 } 384 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 386 u8 key_idx, bool pairwise, const u8 *mac_addr, 387 struct key_params *params) 388 { 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 struct ieee80211_local *local = sdata->local; 391 struct sta_info *sta = NULL; 392 const struct ieee80211_cipher_scheme *cs = NULL; 393 struct ieee80211_key *key; 394 int err; 395 396 if (!ieee80211_sdata_running(sdata)) 397 return -ENETDOWN; 398 399 if (pairwise && params->mode == NL80211_KEY_SET_TX) 400 return ieee80211_set_tx(sdata, mac_addr, key_idx); 401 402 /* reject WEP and TKIP keys if WEP failed to initialize */ 403 switch (params->cipher) { 404 case WLAN_CIPHER_SUITE_WEP40: 405 case WLAN_CIPHER_SUITE_TKIP: 406 case WLAN_CIPHER_SUITE_WEP104: 407 if (WARN_ON_ONCE(fips_enabled)) 408 return -EINVAL; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 572 key = rcu_dereference(sta->gtk[key_idx]); 573 } else 574 key = rcu_dereference(sdata->keys[key_idx]); 575 576 if (!key) 577 goto out; 578 579 memset(¶ms, 0, sizeof(params)); 580 581 params.cipher = key->conf.cipher; 582 583 switch (key->conf.cipher) { 584 case WLAN_CIPHER_SUITE_TKIP: 585 pn64 = atomic64_read(&key->conf.tx_pn); 586 iv32 = TKIP_PN_TO_IV32(pn64); 587 iv16 = TKIP_PN_TO_IV16(pn64); 588 589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 591 drv_get_key_seq(sdata->local, key, &kseq); 592 iv32 = kseq.tkip.iv32; 593 iv16 = kseq.tkip.iv16; 594 } 595 596 seq[0] = iv16 & 0xff; 597 seq[1] = (iv16 >> 8) & 0xff; 598 seq[2] = iv32 & 0xff; 599 seq[3] = (iv32 >> 8) & 0xff; 600 seq[4] = (iv32 >> 16) & 0xff; 601 seq[5] = (iv32 >> 24) & 0xff; 602 params.seq = seq; 603 params.seq_len = 6; 604 break; 605 case WLAN_CIPHER_SUITE_CCMP: 606 case WLAN_CIPHER_SUITE_CCMP_256: 607 case WLAN_CIPHER_SUITE_AES_CMAC: 608 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 610 offsetof(typeof(kseq), aes_cmac)); 611 /* fall through */ 612 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 615 offsetof(typeof(kseq), aes_gmac)); 616 /* fall through */ 617 case WLAN_CIPHER_SUITE_GCMP: 618 case WLAN_CIPHER_SUITE_GCMP_256: 619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 620 offsetof(typeof(kseq), gcmp)); 621 622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 624 drv_get_key_seq(sdata->local, key, &kseq); 625 memcpy(seq, kseq.ccmp.pn, 6); 626 } else { 627 pn64 = atomic64_read(&key->conf.tx_pn); 628 seq[0] = pn64; 629 seq[1] = pn64 >> 8; 630 seq[2] = pn64 >> 16; 631 seq[3] = pn64 >> 24; 632 seq[4] = pn64 >> 32; 633 seq[5] = pn64 >> 40; 634 } 635 params.seq = seq; 636 params.seq_len = 6; 637 break; 638 default: 639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 640 break; 641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 642 break; 643 drv_get_key_seq(sdata->local, key, &kseq); 644 params.seq = kseq.hw.seq; 645 params.seq_len = kseq.hw.seq_len; 646 break; 647 } 648 649 params.key = key->conf.key; 650 params.key_len = key->conf.keylen; 651 652 callback(cookie, ¶ms); 653 err = 0; 654 655 out: 656 rcu_read_unlock(); 657 return err; 658 } 659 660 static int ieee80211_config_default_key(struct wiphy *wiphy, 661 struct net_device *dev, 662 u8 key_idx, bool uni, 663 bool multi) 664 { 665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 666 667 ieee80211_set_default_key(sdata, key_idx, uni, multi); 668 669 return 0; 670 } 671 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 673 struct net_device *dev, 674 u8 key_idx) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 678 ieee80211_set_default_mgmt_key(sdata, key_idx); 679 680 return 0; 681 } 682 683 void sta_set_rate_info_tx(struct sta_info *sta, 684 const struct ieee80211_tx_rate *rate, 685 struct rate_info *rinfo) 686 { 687 rinfo->flags = 0; 688 if (rate->flags & IEEE80211_TX_RC_MCS) { 689 rinfo->flags |= RATE_INFO_FLAGS_MCS; 690 rinfo->mcs = rate->idx; 691 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 692 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 693 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 694 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 695 } else { 696 struct ieee80211_supported_band *sband; 697 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 698 u16 brate; 699 700 sband = ieee80211_get_sband(sta->sdata); 701 if (sband) { 702 brate = sband->bitrates[rate->idx].bitrate; 703 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 704 } 705 } 706 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 707 rinfo->bw = RATE_INFO_BW_40; 708 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 709 rinfo->bw = RATE_INFO_BW_80; 710 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 711 rinfo->bw = RATE_INFO_BW_160; 712 else 713 rinfo->bw = RATE_INFO_BW_20; 714 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 715 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 716 } 717 718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 719 int idx, u8 *mac, struct station_info *sinfo) 720 { 721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 722 struct ieee80211_local *local = sdata->local; 723 struct sta_info *sta; 724 int ret = -ENOENT; 725 726 mutex_lock(&local->sta_mtx); 727 728 sta = sta_info_get_by_idx(sdata, idx); 729 if (sta) { 730 ret = 0; 731 memcpy(mac, sta->sta.addr, ETH_ALEN); 732 sta_set_sinfo(sta, sinfo, true); 733 } 734 735 mutex_unlock(&local->sta_mtx); 736 737 return ret; 738 } 739 740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 741 int idx, struct survey_info *survey) 742 { 743 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 744 745 return drv_get_survey(local, idx, survey); 746 } 747 748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 749 const u8 *mac, struct station_info *sinfo) 750 { 751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 752 struct ieee80211_local *local = sdata->local; 753 struct sta_info *sta; 754 int ret = -ENOENT; 755 756 mutex_lock(&local->sta_mtx); 757 758 sta = sta_info_get_bss(sdata, mac); 759 if (sta) { 760 ret = 0; 761 sta_set_sinfo(sta, sinfo, true); 762 } 763 764 mutex_unlock(&local->sta_mtx); 765 766 return ret; 767 } 768 769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 770 struct cfg80211_chan_def *chandef) 771 { 772 struct ieee80211_local *local = wiphy_priv(wiphy); 773 struct ieee80211_sub_if_data *sdata; 774 int ret = 0; 775 776 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 777 return 0; 778 779 mutex_lock(&local->mtx); 780 if (local->use_chanctx) { 781 sdata = rtnl_dereference(local->monitor_sdata); 782 if (sdata) { 783 ieee80211_vif_release_channel(sdata); 784 ret = ieee80211_vif_use_channel(sdata, chandef, 785 IEEE80211_CHANCTX_EXCLUSIVE); 786 } 787 } else if (local->open_count == local->monitors) { 788 local->_oper_chandef = *chandef; 789 ieee80211_hw_config(local, 0); 790 } 791 792 if (ret == 0) 793 local->monitor_chandef = *chandef; 794 mutex_unlock(&local->mtx); 795 796 return ret; 797 } 798 799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 800 const u8 *resp, size_t resp_len, 801 const struct ieee80211_csa_settings *csa) 802 { 803 struct probe_resp *new, *old; 804 805 if (!resp || !resp_len) 806 return 1; 807 808 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 809 810 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 new->len = resp_len; 815 memcpy(new->data, resp, resp_len); 816 817 if (csa) 818 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 819 csa->n_counter_offsets_presp * 820 sizeof(new->csa_counter_offsets[0])); 821 822 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 823 if (old) 824 kfree_rcu(old, rcu_head); 825 826 return 0; 827 } 828 829 static int ieee80211_set_ftm_responder_params( 830 struct ieee80211_sub_if_data *sdata, 831 const u8 *lci, size_t lci_len, 832 const u8 *civicloc, size_t civicloc_len) 833 { 834 struct ieee80211_ftm_responder_params *new, *old; 835 struct ieee80211_bss_conf *bss_conf; 836 u8 *pos; 837 int len; 838 839 if (!lci_len && !civicloc_len) 840 return 0; 841 842 bss_conf = &sdata->vif.bss_conf; 843 old = bss_conf->ftmr_params; 844 len = lci_len + civicloc_len; 845 846 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 847 if (!new) 848 return -ENOMEM; 849 850 pos = (u8 *)(new + 1); 851 if (lci_len) { 852 new->lci_len = lci_len; 853 new->lci = pos; 854 memcpy(pos, lci, lci_len); 855 pos += lci_len; 856 } 857 858 if (civicloc_len) { 859 new->civicloc_len = civicloc_len; 860 new->civicloc = pos; 861 memcpy(pos, civicloc, civicloc_len); 862 pos += civicloc_len; 863 } 864 865 bss_conf->ftmr_params = new; 866 kfree(old); 867 868 return 0; 869 } 870 871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 872 struct cfg80211_beacon_data *params, 873 const struct ieee80211_csa_settings *csa) 874 { 875 struct beacon_data *new, *old; 876 int new_head_len, new_tail_len; 877 int size, err; 878 u32 changed = BSS_CHANGED_BEACON; 879 880 old = sdata_dereference(sdata->u.ap.beacon, sdata); 881 882 883 /* Need to have a beacon head if we don't have one yet */ 884 if (!params->head && !old) 885 return -EINVAL; 886 887 /* new or old head? */ 888 if (params->head) 889 new_head_len = params->head_len; 890 else 891 new_head_len = old->head_len; 892 893 /* new or old tail? */ 894 if (params->tail || !old) 895 /* params->tail_len will be zero for !params->tail */ 896 new_tail_len = params->tail_len; 897 else 898 new_tail_len = old->tail_len; 899 900 size = sizeof(*new) + new_head_len + new_tail_len; 901 902 new = kzalloc(size, GFP_KERNEL); 903 if (!new) 904 return -ENOMEM; 905 906 /* start filling the new info now */ 907 908 /* 909 * pointers go into the block we allocated, 910 * memory is | beacon_data | head | tail | 911 */ 912 new->head = ((u8 *) new) + sizeof(*new); 913 new->tail = new->head + new_head_len; 914 new->head_len = new_head_len; 915 new->tail_len = new_tail_len; 916 917 if (csa) { 918 new->csa_current_counter = csa->count; 919 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 920 csa->n_counter_offsets_beacon * 921 sizeof(new->csa_counter_offsets[0])); 922 } 923 924 /* copy in head */ 925 if (params->head) 926 memcpy(new->head, params->head, new_head_len); 927 else 928 memcpy(new->head, old->head, new_head_len); 929 930 /* copy in optional tail */ 931 if (params->tail) 932 memcpy(new->tail, params->tail, new_tail_len); 933 else 934 if (old) 935 memcpy(new->tail, old->tail, new_tail_len); 936 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 938 params->probe_resp_len, csa); 939 if (err < 0) 940 return err; 941 if (err == 0) 942 changed |= BSS_CHANGED_AP_PROBE_RESP; 943 944 if (params->ftm_responder != -1) { 945 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 946 err = ieee80211_set_ftm_responder_params(sdata, 947 params->lci, 948 params->lci_len, 949 params->civicloc, 950 params->civicloc_len); 951 952 if (err < 0) 953 return err; 954 955 changed |= BSS_CHANGED_FTM_RESPONDER; 956 } 957 958 rcu_assign_pointer(sdata->u.ap.beacon, new); 959 960 if (old) 961 kfree_rcu(old, rcu_head); 962 963 return changed; 964 } 965 966 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 967 struct cfg80211_ap_settings *params) 968 { 969 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 970 struct ieee80211_local *local = sdata->local; 971 struct beacon_data *old; 972 struct ieee80211_sub_if_data *vlan; 973 u32 changed = BSS_CHANGED_BEACON_INT | 974 BSS_CHANGED_BEACON_ENABLED | 975 BSS_CHANGED_BEACON | 976 BSS_CHANGED_SSID | 977 BSS_CHANGED_P2P_PS | 978 BSS_CHANGED_TXPOWER | 979 BSS_CHANGED_TWT; 980 int err; 981 int prev_beacon_int; 982 983 old = sdata_dereference(sdata->u.ap.beacon, sdata); 984 if (old) 985 return -EALREADY; 986 987 switch (params->smps_mode) { 988 case NL80211_SMPS_OFF: 989 sdata->smps_mode = IEEE80211_SMPS_OFF; 990 break; 991 case NL80211_SMPS_STATIC: 992 sdata->smps_mode = IEEE80211_SMPS_STATIC; 993 break; 994 case NL80211_SMPS_DYNAMIC: 995 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 996 break; 997 default: 998 return -EINVAL; 999 } 1000 sdata->u.ap.req_smps = sdata->smps_mode; 1001 1002 sdata->needed_rx_chains = sdata->local->rx_chains; 1003 1004 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1005 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1006 1007 if (params->he_cap) 1008 sdata->vif.bss_conf.he_support = true; 1009 1010 mutex_lock(&local->mtx); 1011 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1012 IEEE80211_CHANCTX_SHARED); 1013 if (!err) 1014 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1015 mutex_unlock(&local->mtx); 1016 if (err) { 1017 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1018 return err; 1019 } 1020 1021 /* 1022 * Apply control port protocol, this allows us to 1023 * not encrypt dynamic WEP control frames. 1024 */ 1025 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1026 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1027 sdata->control_port_over_nl80211 = 1028 params->crypto.control_port_over_nl80211; 1029 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1030 ¶ms->crypto, 1031 sdata->vif.type); 1032 1033 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1034 vlan->control_port_protocol = 1035 params->crypto.control_port_ethertype; 1036 vlan->control_port_no_encrypt = 1037 params->crypto.control_port_no_encrypt; 1038 vlan->control_port_over_nl80211 = 1039 params->crypto.control_port_over_nl80211; 1040 vlan->encrypt_headroom = 1041 ieee80211_cs_headroom(sdata->local, 1042 ¶ms->crypto, 1043 vlan->vif.type); 1044 } 1045 1046 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1047 sdata->vif.bss_conf.enable_beacon = true; 1048 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1049 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1050 1051 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1052 if (params->ssid_len) 1053 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1054 params->ssid_len); 1055 sdata->vif.bss_conf.hidden_ssid = 1056 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1057 1058 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1059 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1060 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1061 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1062 if (params->p2p_opp_ps) 1063 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1064 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1065 1066 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1067 if (err < 0) { 1068 ieee80211_vif_release_channel(sdata); 1069 return err; 1070 } 1071 changed |= err; 1072 1073 err = drv_start_ap(sdata->local, sdata); 1074 if (err) { 1075 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1076 1077 if (old) 1078 kfree_rcu(old, rcu_head); 1079 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1080 ieee80211_vif_release_channel(sdata); 1081 return err; 1082 } 1083 1084 ieee80211_recalc_dtim(local, sdata); 1085 ieee80211_bss_info_change_notify(sdata, changed); 1086 1087 netif_carrier_on(dev); 1088 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1089 netif_carrier_on(vlan->dev); 1090 1091 return 0; 1092 } 1093 1094 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1095 struct cfg80211_beacon_data *params) 1096 { 1097 struct ieee80211_sub_if_data *sdata; 1098 struct beacon_data *old; 1099 int err; 1100 1101 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1102 sdata_assert_lock(sdata); 1103 1104 /* don't allow changing the beacon while CSA is in place - offset 1105 * of channel switch counter may change 1106 */ 1107 if (sdata->vif.csa_active) 1108 return -EBUSY; 1109 1110 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1111 if (!old) 1112 return -ENOENT; 1113 1114 err = ieee80211_assign_beacon(sdata, params, NULL); 1115 if (err < 0) 1116 return err; 1117 ieee80211_bss_info_change_notify(sdata, err); 1118 return 0; 1119 } 1120 1121 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1122 { 1123 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1124 struct ieee80211_sub_if_data *vlan; 1125 struct ieee80211_local *local = sdata->local; 1126 struct beacon_data *old_beacon; 1127 struct probe_resp *old_probe_resp; 1128 struct cfg80211_chan_def chandef; 1129 1130 sdata_assert_lock(sdata); 1131 1132 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1133 if (!old_beacon) 1134 return -ENOENT; 1135 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1136 1137 /* abort any running channel switch */ 1138 mutex_lock(&local->mtx); 1139 sdata->vif.csa_active = false; 1140 if (sdata->csa_block_tx) { 1141 ieee80211_wake_vif_queues(local, sdata, 1142 IEEE80211_QUEUE_STOP_REASON_CSA); 1143 sdata->csa_block_tx = false; 1144 } 1145 1146 mutex_unlock(&local->mtx); 1147 1148 kfree(sdata->u.ap.next_beacon); 1149 sdata->u.ap.next_beacon = NULL; 1150 1151 /* turn off carrier for this interface and dependent VLANs */ 1152 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1153 netif_carrier_off(vlan->dev); 1154 netif_carrier_off(dev); 1155 1156 /* remove beacon and probe response */ 1157 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1158 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1159 kfree_rcu(old_beacon, rcu_head); 1160 if (old_probe_resp) 1161 kfree_rcu(old_probe_resp, rcu_head); 1162 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1163 1164 kfree(sdata->vif.bss_conf.ftmr_params); 1165 sdata->vif.bss_conf.ftmr_params = NULL; 1166 1167 __sta_info_flush(sdata, true); 1168 ieee80211_free_keys(sdata, true); 1169 1170 sdata->vif.bss_conf.enable_beacon = false; 1171 sdata->vif.bss_conf.ssid_len = 0; 1172 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1173 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1174 1175 if (sdata->wdev.cac_started) { 1176 chandef = sdata->vif.bss_conf.chandef; 1177 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1178 cfg80211_cac_event(sdata->dev, &chandef, 1179 NL80211_RADAR_CAC_ABORTED, 1180 GFP_KERNEL); 1181 } 1182 1183 drv_stop_ap(sdata->local, sdata); 1184 1185 /* free all potentially still buffered bcast frames */ 1186 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1187 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1188 1189 mutex_lock(&local->mtx); 1190 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1191 ieee80211_vif_release_channel(sdata); 1192 mutex_unlock(&local->mtx); 1193 1194 return 0; 1195 } 1196 1197 static int sta_apply_auth_flags(struct ieee80211_local *local, 1198 struct sta_info *sta, 1199 u32 mask, u32 set) 1200 { 1201 int ret; 1202 1203 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1204 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1205 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1206 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1207 if (ret) 1208 return ret; 1209 } 1210 1211 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1212 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1213 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1214 /* 1215 * When peer becomes associated, init rate control as 1216 * well. Some drivers require rate control initialized 1217 * before drv_sta_state() is called. 1218 */ 1219 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1220 rate_control_rate_init(sta); 1221 1222 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1223 if (ret) 1224 return ret; 1225 } 1226 1227 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1228 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1229 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1230 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1231 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1232 else 1233 ret = 0; 1234 if (ret) 1235 return ret; 1236 } 1237 1238 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1239 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1240 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1241 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1242 if (ret) 1243 return ret; 1244 } 1245 1246 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1247 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1248 test_sta_flag(sta, WLAN_STA_AUTH)) { 1249 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1250 if (ret) 1251 return ret; 1252 } 1253 1254 return 0; 1255 } 1256 1257 static void sta_apply_mesh_params(struct ieee80211_local *local, 1258 struct sta_info *sta, 1259 struct station_parameters *params) 1260 { 1261 #ifdef CONFIG_MAC80211_MESH 1262 struct ieee80211_sub_if_data *sdata = sta->sdata; 1263 u32 changed = 0; 1264 1265 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1266 switch (params->plink_state) { 1267 case NL80211_PLINK_ESTAB: 1268 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1269 changed = mesh_plink_inc_estab_count(sdata); 1270 sta->mesh->plink_state = params->plink_state; 1271 sta->mesh->aid = params->peer_aid; 1272 1273 ieee80211_mps_sta_status_update(sta); 1274 changed |= ieee80211_mps_set_sta_local_pm(sta, 1275 sdata->u.mesh.mshcfg.power_mode); 1276 1277 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1278 /* init at low value */ 1279 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1280 1281 break; 1282 case NL80211_PLINK_LISTEN: 1283 case NL80211_PLINK_BLOCKED: 1284 case NL80211_PLINK_OPN_SNT: 1285 case NL80211_PLINK_OPN_RCVD: 1286 case NL80211_PLINK_CNF_RCVD: 1287 case NL80211_PLINK_HOLDING: 1288 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1289 changed = mesh_plink_dec_estab_count(sdata); 1290 sta->mesh->plink_state = params->plink_state; 1291 1292 ieee80211_mps_sta_status_update(sta); 1293 changed |= ieee80211_mps_set_sta_local_pm(sta, 1294 NL80211_MESH_POWER_UNKNOWN); 1295 break; 1296 default: 1297 /* nothing */ 1298 break; 1299 } 1300 } 1301 1302 switch (params->plink_action) { 1303 case NL80211_PLINK_ACTION_NO_ACTION: 1304 /* nothing */ 1305 break; 1306 case NL80211_PLINK_ACTION_OPEN: 1307 changed |= mesh_plink_open(sta); 1308 break; 1309 case NL80211_PLINK_ACTION_BLOCK: 1310 changed |= mesh_plink_block(sta); 1311 break; 1312 } 1313 1314 if (params->local_pm) 1315 changed |= ieee80211_mps_set_sta_local_pm(sta, 1316 params->local_pm); 1317 1318 ieee80211_mbss_info_change_notify(sdata, changed); 1319 #endif 1320 } 1321 1322 static int sta_apply_parameters(struct ieee80211_local *local, 1323 struct sta_info *sta, 1324 struct station_parameters *params) 1325 { 1326 int ret = 0; 1327 struct ieee80211_supported_band *sband; 1328 struct ieee80211_sub_if_data *sdata = sta->sdata; 1329 u32 mask, set; 1330 1331 sband = ieee80211_get_sband(sdata); 1332 if (!sband) 1333 return -EINVAL; 1334 1335 mask = params->sta_flags_mask; 1336 set = params->sta_flags_set; 1337 1338 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1339 /* 1340 * In mesh mode, ASSOCIATED isn't part of the nl80211 1341 * API but must follow AUTHENTICATED for driver state. 1342 */ 1343 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1344 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1345 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1346 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1347 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1348 /* 1349 * TDLS -- everything follows authorized, but 1350 * only becoming authorized is possible, not 1351 * going back 1352 */ 1353 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1354 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1355 BIT(NL80211_STA_FLAG_ASSOCIATED); 1356 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1357 BIT(NL80211_STA_FLAG_ASSOCIATED); 1358 } 1359 } 1360 1361 if (mask & BIT(NL80211_STA_FLAG_WME) && 1362 local->hw.queues >= IEEE80211_NUM_ACS) 1363 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1364 1365 /* auth flags will be set later for TDLS, 1366 * and for unassociated stations that move to assocaited */ 1367 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1368 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1369 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1370 ret = sta_apply_auth_flags(local, sta, mask, set); 1371 if (ret) 1372 return ret; 1373 } 1374 1375 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1376 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1377 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1378 else 1379 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1380 } 1381 1382 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1383 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1384 if (set & BIT(NL80211_STA_FLAG_MFP)) 1385 set_sta_flag(sta, WLAN_STA_MFP); 1386 else 1387 clear_sta_flag(sta, WLAN_STA_MFP); 1388 } 1389 1390 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1391 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1392 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1393 else 1394 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1395 } 1396 1397 /* mark TDLS channel switch support, if the AP allows it */ 1398 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1399 !sdata->u.mgd.tdls_chan_switch_prohibited && 1400 params->ext_capab_len >= 4 && 1401 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1402 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1403 1404 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1405 !sdata->u.mgd.tdls_wider_bw_prohibited && 1406 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1407 params->ext_capab_len >= 8 && 1408 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1409 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1410 1411 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1412 sta->sta.uapsd_queues = params->uapsd_queues; 1413 sta->sta.max_sp = params->max_sp; 1414 } 1415 1416 /* The sender might not have sent the last bit, consider it to be 0 */ 1417 if (params->ext_capab_len >= 8) { 1418 u8 val = (params->ext_capab[7] & 1419 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1420 1421 /* we did get all the bits, take the MSB as well */ 1422 if (params->ext_capab_len >= 9) { 1423 u8 val_msb = params->ext_capab[8] & 1424 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1425 val_msb <<= 1; 1426 val |= val_msb; 1427 } 1428 1429 switch (val) { 1430 case 1: 1431 sta->sta.max_amsdu_subframes = 32; 1432 break; 1433 case 2: 1434 sta->sta.max_amsdu_subframes = 16; 1435 break; 1436 case 3: 1437 sta->sta.max_amsdu_subframes = 8; 1438 break; 1439 default: 1440 sta->sta.max_amsdu_subframes = 0; 1441 } 1442 } 1443 1444 /* 1445 * cfg80211 validates this (1-2007) and allows setting the AID 1446 * only when creating a new station entry 1447 */ 1448 if (params->aid) 1449 sta->sta.aid = params->aid; 1450 1451 /* 1452 * Some of the following updates would be racy if called on an 1453 * existing station, via ieee80211_change_station(). However, 1454 * all such changes are rejected by cfg80211 except for updates 1455 * changing the supported rates on an existing but not yet used 1456 * TDLS peer. 1457 */ 1458 1459 if (params->listen_interval >= 0) 1460 sta->listen_interval = params->listen_interval; 1461 1462 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1463 sta->sta.txpwr.type = params->txpwr.type; 1464 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1465 sta->sta.txpwr.power = params->txpwr.power; 1466 ret = drv_sta_set_txpwr(local, sdata, sta); 1467 if (ret) 1468 return ret; 1469 } 1470 1471 if (params->supported_rates && params->supported_rates_len) { 1472 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1473 sband, params->supported_rates, 1474 params->supported_rates_len, 1475 &sta->sta.supp_rates[sband->band]); 1476 } 1477 1478 if (params->ht_capa) 1479 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1480 params->ht_capa, sta); 1481 1482 /* VHT can override some HT caps such as the A-MSDU max length */ 1483 if (params->vht_capa) 1484 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1485 params->vht_capa, sta); 1486 1487 if (params->he_capa) 1488 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1489 (void *)params->he_capa, 1490 params->he_capa_len, sta); 1491 1492 if (params->opmode_notif_used) { 1493 /* returned value is only needed for rc update, but the 1494 * rc isn't initialized here yet, so ignore it 1495 */ 1496 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1497 sband->band); 1498 } 1499 1500 if (params->support_p2p_ps >= 0) 1501 sta->sta.support_p2p_ps = params->support_p2p_ps; 1502 1503 if (ieee80211_vif_is_mesh(&sdata->vif)) 1504 sta_apply_mesh_params(local, sta, params); 1505 1506 if (params->airtime_weight) 1507 sta->airtime_weight = params->airtime_weight; 1508 1509 /* set the STA state after all sta info from usermode has been set */ 1510 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1511 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1512 ret = sta_apply_auth_flags(local, sta, mask, set); 1513 if (ret) 1514 return ret; 1515 } 1516 1517 return 0; 1518 } 1519 1520 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1521 const u8 *mac, 1522 struct station_parameters *params) 1523 { 1524 struct ieee80211_local *local = wiphy_priv(wiphy); 1525 struct sta_info *sta; 1526 struct ieee80211_sub_if_data *sdata; 1527 int err; 1528 int layer2_update; 1529 1530 if (params->vlan) { 1531 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1532 1533 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1534 sdata->vif.type != NL80211_IFTYPE_AP) 1535 return -EINVAL; 1536 } else 1537 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1538 1539 if (ether_addr_equal(mac, sdata->vif.addr)) 1540 return -EINVAL; 1541 1542 if (is_multicast_ether_addr(mac)) 1543 return -EINVAL; 1544 1545 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1546 if (!sta) 1547 return -ENOMEM; 1548 1549 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1550 sta->sta.tdls = true; 1551 1552 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1553 !sdata->u.mgd.associated) 1554 return -EINVAL; 1555 1556 err = sta_apply_parameters(local, sta, params); 1557 if (err) { 1558 sta_info_free(local, sta); 1559 return err; 1560 } 1561 1562 /* 1563 * for TDLS and for unassociated station, rate control should be 1564 * initialized only when rates are known and station is marked 1565 * authorized/associated 1566 */ 1567 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1568 test_sta_flag(sta, WLAN_STA_ASSOC)) 1569 rate_control_rate_init(sta); 1570 1571 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1572 sdata->vif.type == NL80211_IFTYPE_AP; 1573 1574 err = sta_info_insert_rcu(sta); 1575 if (err) { 1576 rcu_read_unlock(); 1577 return err; 1578 } 1579 1580 if (layer2_update) 1581 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1582 1583 rcu_read_unlock(); 1584 1585 return 0; 1586 } 1587 1588 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1589 struct station_del_parameters *params) 1590 { 1591 struct ieee80211_sub_if_data *sdata; 1592 1593 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1594 1595 if (params->mac) 1596 return sta_info_destroy_addr_bss(sdata, params->mac); 1597 1598 sta_info_flush(sdata); 1599 return 0; 1600 } 1601 1602 static int ieee80211_change_station(struct wiphy *wiphy, 1603 struct net_device *dev, const u8 *mac, 1604 struct station_parameters *params) 1605 { 1606 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1607 struct ieee80211_local *local = wiphy_priv(wiphy); 1608 struct sta_info *sta; 1609 struct ieee80211_sub_if_data *vlansdata; 1610 enum cfg80211_station_type statype; 1611 int err; 1612 1613 mutex_lock(&local->sta_mtx); 1614 1615 sta = sta_info_get_bss(sdata, mac); 1616 if (!sta) { 1617 err = -ENOENT; 1618 goto out_err; 1619 } 1620 1621 switch (sdata->vif.type) { 1622 case NL80211_IFTYPE_MESH_POINT: 1623 if (sdata->u.mesh.user_mpm) 1624 statype = CFG80211_STA_MESH_PEER_USER; 1625 else 1626 statype = CFG80211_STA_MESH_PEER_KERNEL; 1627 break; 1628 case NL80211_IFTYPE_ADHOC: 1629 statype = CFG80211_STA_IBSS; 1630 break; 1631 case NL80211_IFTYPE_STATION: 1632 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1633 statype = CFG80211_STA_AP_STA; 1634 break; 1635 } 1636 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1637 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1638 else 1639 statype = CFG80211_STA_TDLS_PEER_SETUP; 1640 break; 1641 case NL80211_IFTYPE_AP: 1642 case NL80211_IFTYPE_AP_VLAN: 1643 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1644 statype = CFG80211_STA_AP_CLIENT; 1645 else 1646 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1647 break; 1648 default: 1649 err = -EOPNOTSUPP; 1650 goto out_err; 1651 } 1652 1653 err = cfg80211_check_station_change(wiphy, params, statype); 1654 if (err) 1655 goto out_err; 1656 1657 if (params->vlan && params->vlan != sta->sdata->dev) { 1658 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1659 1660 if (params->vlan->ieee80211_ptr->use_4addr) { 1661 if (vlansdata->u.vlan.sta) { 1662 err = -EBUSY; 1663 goto out_err; 1664 } 1665 1666 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1667 __ieee80211_check_fast_rx_iface(vlansdata); 1668 } 1669 1670 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1671 sta->sdata->u.vlan.sta) 1672 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1673 1674 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1675 ieee80211_vif_dec_num_mcast(sta->sdata); 1676 1677 sta->sdata = vlansdata; 1678 ieee80211_check_fast_xmit(sta); 1679 1680 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1681 ieee80211_vif_inc_num_mcast(sta->sdata); 1682 1683 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1684 } 1685 1686 err = sta_apply_parameters(local, sta, params); 1687 if (err) 1688 goto out_err; 1689 1690 mutex_unlock(&local->sta_mtx); 1691 1692 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1693 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1694 sta->known_smps_mode != sta->sdata->bss->req_smps && 1695 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1696 sta_info_tx_streams(sta) != 1) { 1697 ht_dbg(sta->sdata, 1698 "%pM just authorized and MIMO capable - update SMPS\n", 1699 sta->sta.addr); 1700 ieee80211_send_smps_action(sta->sdata, 1701 sta->sdata->bss->req_smps, 1702 sta->sta.addr, 1703 sta->sdata->vif.bss_conf.bssid); 1704 } 1705 1706 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1707 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1708 ieee80211_recalc_ps(local); 1709 ieee80211_recalc_ps_vif(sdata); 1710 } 1711 1712 return 0; 1713 out_err: 1714 mutex_unlock(&local->sta_mtx); 1715 return err; 1716 } 1717 1718 #ifdef CONFIG_MAC80211_MESH 1719 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1720 const u8 *dst, const u8 *next_hop) 1721 { 1722 struct ieee80211_sub_if_data *sdata; 1723 struct mesh_path *mpath; 1724 struct sta_info *sta; 1725 1726 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1727 1728 rcu_read_lock(); 1729 sta = sta_info_get(sdata, next_hop); 1730 if (!sta) { 1731 rcu_read_unlock(); 1732 return -ENOENT; 1733 } 1734 1735 mpath = mesh_path_add(sdata, dst); 1736 if (IS_ERR(mpath)) { 1737 rcu_read_unlock(); 1738 return PTR_ERR(mpath); 1739 } 1740 1741 mesh_path_fix_nexthop(mpath, sta); 1742 1743 rcu_read_unlock(); 1744 return 0; 1745 } 1746 1747 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1748 const u8 *dst) 1749 { 1750 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1751 1752 if (dst) 1753 return mesh_path_del(sdata, dst); 1754 1755 mesh_path_flush_by_iface(sdata); 1756 return 0; 1757 } 1758 1759 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1760 const u8 *dst, const u8 *next_hop) 1761 { 1762 struct ieee80211_sub_if_data *sdata; 1763 struct mesh_path *mpath; 1764 struct sta_info *sta; 1765 1766 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1767 1768 rcu_read_lock(); 1769 1770 sta = sta_info_get(sdata, next_hop); 1771 if (!sta) { 1772 rcu_read_unlock(); 1773 return -ENOENT; 1774 } 1775 1776 mpath = mesh_path_lookup(sdata, dst); 1777 if (!mpath) { 1778 rcu_read_unlock(); 1779 return -ENOENT; 1780 } 1781 1782 mesh_path_fix_nexthop(mpath, sta); 1783 1784 rcu_read_unlock(); 1785 return 0; 1786 } 1787 1788 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1789 struct mpath_info *pinfo) 1790 { 1791 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1792 1793 if (next_hop_sta) 1794 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1795 else 1796 eth_zero_addr(next_hop); 1797 1798 memset(pinfo, 0, sizeof(*pinfo)); 1799 1800 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1801 1802 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1803 MPATH_INFO_SN | 1804 MPATH_INFO_METRIC | 1805 MPATH_INFO_EXPTIME | 1806 MPATH_INFO_DISCOVERY_TIMEOUT | 1807 MPATH_INFO_DISCOVERY_RETRIES | 1808 MPATH_INFO_FLAGS | 1809 MPATH_INFO_HOP_COUNT | 1810 MPATH_INFO_PATH_CHANGE; 1811 1812 pinfo->frame_qlen = mpath->frame_queue.qlen; 1813 pinfo->sn = mpath->sn; 1814 pinfo->metric = mpath->metric; 1815 if (time_before(jiffies, mpath->exp_time)) 1816 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1817 pinfo->discovery_timeout = 1818 jiffies_to_msecs(mpath->discovery_timeout); 1819 pinfo->discovery_retries = mpath->discovery_retries; 1820 if (mpath->flags & MESH_PATH_ACTIVE) 1821 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1822 if (mpath->flags & MESH_PATH_RESOLVING) 1823 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1824 if (mpath->flags & MESH_PATH_SN_VALID) 1825 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1826 if (mpath->flags & MESH_PATH_FIXED) 1827 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1828 if (mpath->flags & MESH_PATH_RESOLVED) 1829 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1830 pinfo->hop_count = mpath->hop_count; 1831 pinfo->path_change_count = mpath->path_change_count; 1832 } 1833 1834 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1835 u8 *dst, u8 *next_hop, 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 = mesh_path_lookup(sdata, dst); 1845 if (!mpath) { 1846 rcu_read_unlock(); 1847 return -ENOENT; 1848 } 1849 memcpy(dst, mpath->dst, ETH_ALEN); 1850 mpath_set_pinfo(mpath, next_hop, pinfo); 1851 rcu_read_unlock(); 1852 return 0; 1853 } 1854 1855 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1856 int idx, u8 *dst, u8 *next_hop, 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 = mesh_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 mpath_set_pinfo(mpath, next_hop, pinfo); 1872 rcu_read_unlock(); 1873 return 0; 1874 } 1875 1876 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1877 struct mpath_info *pinfo) 1878 { 1879 memset(pinfo, 0, sizeof(*pinfo)); 1880 memcpy(mpp, mpath->mpp, ETH_ALEN); 1881 1882 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1883 } 1884 1885 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1886 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1887 1888 { 1889 struct ieee80211_sub_if_data *sdata; 1890 struct mesh_path *mpath; 1891 1892 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1893 1894 rcu_read_lock(); 1895 mpath = mpp_path_lookup(sdata, dst); 1896 if (!mpath) { 1897 rcu_read_unlock(); 1898 return -ENOENT; 1899 } 1900 memcpy(dst, mpath->dst, ETH_ALEN); 1901 mpp_set_pinfo(mpath, mpp, pinfo); 1902 rcu_read_unlock(); 1903 return 0; 1904 } 1905 1906 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1907 int idx, u8 *dst, u8 *mpp, 1908 struct mpath_info *pinfo) 1909 { 1910 struct ieee80211_sub_if_data *sdata; 1911 struct mesh_path *mpath; 1912 1913 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1914 1915 rcu_read_lock(); 1916 mpath = mpp_path_lookup_by_idx(sdata, idx); 1917 if (!mpath) { 1918 rcu_read_unlock(); 1919 return -ENOENT; 1920 } 1921 memcpy(dst, mpath->dst, ETH_ALEN); 1922 mpp_set_pinfo(mpath, mpp, pinfo); 1923 rcu_read_unlock(); 1924 return 0; 1925 } 1926 1927 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1928 struct net_device *dev, 1929 struct mesh_config *conf) 1930 { 1931 struct ieee80211_sub_if_data *sdata; 1932 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1933 1934 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1935 return 0; 1936 } 1937 1938 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1939 { 1940 return (mask >> (parm-1)) & 0x1; 1941 } 1942 1943 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1944 const struct mesh_setup *setup) 1945 { 1946 u8 *new_ie; 1947 const u8 *old_ie; 1948 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1949 struct ieee80211_sub_if_data, u.mesh); 1950 1951 /* allocate information elements */ 1952 new_ie = NULL; 1953 old_ie = ifmsh->ie; 1954 1955 if (setup->ie_len) { 1956 new_ie = kmemdup(setup->ie, setup->ie_len, 1957 GFP_KERNEL); 1958 if (!new_ie) 1959 return -ENOMEM; 1960 } 1961 ifmsh->ie_len = setup->ie_len; 1962 ifmsh->ie = new_ie; 1963 kfree(old_ie); 1964 1965 /* now copy the rest of the setup parameters */ 1966 ifmsh->mesh_id_len = setup->mesh_id_len; 1967 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1968 ifmsh->mesh_sp_id = setup->sync_method; 1969 ifmsh->mesh_pp_id = setup->path_sel_proto; 1970 ifmsh->mesh_pm_id = setup->path_metric; 1971 ifmsh->user_mpm = setup->user_mpm; 1972 ifmsh->mesh_auth_id = setup->auth_id; 1973 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1974 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1975 if (setup->is_authenticated) 1976 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1977 if (setup->is_secure) 1978 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1979 1980 /* mcast rate setting in Mesh Node */ 1981 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1982 sizeof(setup->mcast_rate)); 1983 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1984 1985 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1986 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1987 1988 return 0; 1989 } 1990 1991 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1992 struct net_device *dev, u32 mask, 1993 const struct mesh_config *nconf) 1994 { 1995 struct mesh_config *conf; 1996 struct ieee80211_sub_if_data *sdata; 1997 struct ieee80211_if_mesh *ifmsh; 1998 1999 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2000 ifmsh = &sdata->u.mesh; 2001 2002 /* Set the config options which we are interested in setting */ 2003 conf = &(sdata->u.mesh.mshcfg); 2004 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2005 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2007 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2009 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2010 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2011 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2012 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2013 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2014 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2015 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2017 conf->element_ttl = nconf->element_ttl; 2018 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2019 if (ifmsh->user_mpm) 2020 return -EBUSY; 2021 conf->auto_open_plinks = nconf->auto_open_plinks; 2022 } 2023 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2024 conf->dot11MeshNbrOffsetMaxNeighbor = 2025 nconf->dot11MeshNbrOffsetMaxNeighbor; 2026 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2027 conf->dot11MeshHWMPmaxPREQretries = 2028 nconf->dot11MeshHWMPmaxPREQretries; 2029 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2030 conf->path_refresh_time = nconf->path_refresh_time; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2032 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2034 conf->dot11MeshHWMPactivePathTimeout = 2035 nconf->dot11MeshHWMPactivePathTimeout; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2037 conf->dot11MeshHWMPpreqMinInterval = 2038 nconf->dot11MeshHWMPpreqMinInterval; 2039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2040 conf->dot11MeshHWMPperrMinInterval = 2041 nconf->dot11MeshHWMPperrMinInterval; 2042 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2043 mask)) 2044 conf->dot11MeshHWMPnetDiameterTraversalTime = 2045 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2046 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2047 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2048 ieee80211_mesh_root_setup(ifmsh); 2049 } 2050 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2051 /* our current gate announcement implementation rides on root 2052 * announcements, so require this ifmsh to also be a root node 2053 * */ 2054 if (nconf->dot11MeshGateAnnouncementProtocol && 2055 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2056 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2057 ieee80211_mesh_root_setup(ifmsh); 2058 } 2059 conf->dot11MeshGateAnnouncementProtocol = 2060 nconf->dot11MeshGateAnnouncementProtocol; 2061 } 2062 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2063 conf->dot11MeshHWMPRannInterval = 2064 nconf->dot11MeshHWMPRannInterval; 2065 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2066 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2067 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2068 /* our RSSI threshold implementation is supported only for 2069 * devices that report signal in dBm. 2070 */ 2071 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2072 return -ENOTSUPP; 2073 conf->rssi_threshold = nconf->rssi_threshold; 2074 } 2075 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2076 conf->ht_opmode = nconf->ht_opmode; 2077 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2078 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2079 } 2080 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2081 conf->dot11MeshHWMPactivePathToRootTimeout = 2082 nconf->dot11MeshHWMPactivePathToRootTimeout; 2083 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2084 conf->dot11MeshHWMProotInterval = 2085 nconf->dot11MeshHWMProotInterval; 2086 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2087 conf->dot11MeshHWMPconfirmationInterval = 2088 nconf->dot11MeshHWMPconfirmationInterval; 2089 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2090 conf->power_mode = nconf->power_mode; 2091 ieee80211_mps_local_status_update(sdata); 2092 } 2093 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2094 conf->dot11MeshAwakeWindowDuration = 2095 nconf->dot11MeshAwakeWindowDuration; 2096 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2097 conf->plink_timeout = nconf->plink_timeout; 2098 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2099 conf->dot11MeshConnectedToMeshGate = 2100 nconf->dot11MeshConnectedToMeshGate; 2101 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2102 return 0; 2103 } 2104 2105 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2106 const struct mesh_config *conf, 2107 const struct mesh_setup *setup) 2108 { 2109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2110 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2111 int err; 2112 2113 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2114 err = copy_mesh_setup(ifmsh, setup); 2115 if (err) 2116 return err; 2117 2118 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2119 2120 /* can mesh use other SMPS modes? */ 2121 sdata->smps_mode = IEEE80211_SMPS_OFF; 2122 sdata->needed_rx_chains = sdata->local->rx_chains; 2123 2124 mutex_lock(&sdata->local->mtx); 2125 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2126 IEEE80211_CHANCTX_SHARED); 2127 mutex_unlock(&sdata->local->mtx); 2128 if (err) 2129 return err; 2130 2131 return ieee80211_start_mesh(sdata); 2132 } 2133 2134 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2135 { 2136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2137 2138 ieee80211_stop_mesh(sdata); 2139 mutex_lock(&sdata->local->mtx); 2140 ieee80211_vif_release_channel(sdata); 2141 mutex_unlock(&sdata->local->mtx); 2142 2143 return 0; 2144 } 2145 #endif 2146 2147 static int ieee80211_change_bss(struct wiphy *wiphy, 2148 struct net_device *dev, 2149 struct bss_parameters *params) 2150 { 2151 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2152 struct ieee80211_supported_band *sband; 2153 u32 changed = 0; 2154 2155 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2156 return -ENOENT; 2157 2158 sband = ieee80211_get_sband(sdata); 2159 if (!sband) 2160 return -EINVAL; 2161 2162 if (params->use_cts_prot >= 0) { 2163 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2164 changed |= BSS_CHANGED_ERP_CTS_PROT; 2165 } 2166 if (params->use_short_preamble >= 0) { 2167 sdata->vif.bss_conf.use_short_preamble = 2168 params->use_short_preamble; 2169 changed |= BSS_CHANGED_ERP_PREAMBLE; 2170 } 2171 2172 if (!sdata->vif.bss_conf.use_short_slot && 2173 sband->band == NL80211_BAND_5GHZ) { 2174 sdata->vif.bss_conf.use_short_slot = true; 2175 changed |= BSS_CHANGED_ERP_SLOT; 2176 } 2177 2178 if (params->use_short_slot_time >= 0) { 2179 sdata->vif.bss_conf.use_short_slot = 2180 params->use_short_slot_time; 2181 changed |= BSS_CHANGED_ERP_SLOT; 2182 } 2183 2184 if (params->basic_rates) { 2185 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2186 wiphy->bands[sband->band], 2187 params->basic_rates, 2188 params->basic_rates_len, 2189 &sdata->vif.bss_conf.basic_rates); 2190 changed |= BSS_CHANGED_BASIC_RATES; 2191 ieee80211_check_rate_mask(sdata); 2192 } 2193 2194 if (params->ap_isolate >= 0) { 2195 if (params->ap_isolate) 2196 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2197 else 2198 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2199 ieee80211_check_fast_rx_iface(sdata); 2200 } 2201 2202 if (params->ht_opmode >= 0) { 2203 sdata->vif.bss_conf.ht_operation_mode = 2204 (u16) params->ht_opmode; 2205 changed |= BSS_CHANGED_HT; 2206 } 2207 2208 if (params->p2p_ctwindow >= 0) { 2209 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2210 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2211 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2212 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2213 changed |= BSS_CHANGED_P2P_PS; 2214 } 2215 2216 if (params->p2p_opp_ps > 0) { 2217 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2218 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2219 changed |= BSS_CHANGED_P2P_PS; 2220 } else if (params->p2p_opp_ps == 0) { 2221 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2222 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2223 changed |= BSS_CHANGED_P2P_PS; 2224 } 2225 2226 ieee80211_bss_info_change_notify(sdata, changed); 2227 2228 return 0; 2229 } 2230 2231 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2232 struct net_device *dev, 2233 struct ieee80211_txq_params *params) 2234 { 2235 struct ieee80211_local *local = wiphy_priv(wiphy); 2236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2237 struct ieee80211_tx_queue_params p; 2238 2239 if (!local->ops->conf_tx) 2240 return -EOPNOTSUPP; 2241 2242 if (local->hw.queues < IEEE80211_NUM_ACS) 2243 return -EOPNOTSUPP; 2244 2245 memset(&p, 0, sizeof(p)); 2246 p.aifs = params->aifs; 2247 p.cw_max = params->cwmax; 2248 p.cw_min = params->cwmin; 2249 p.txop = params->txop; 2250 2251 /* 2252 * Setting tx queue params disables u-apsd because it's only 2253 * called in master mode. 2254 */ 2255 p.uapsd = false; 2256 2257 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2258 2259 sdata->tx_conf[params->ac] = p; 2260 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2261 wiphy_debug(local->hw.wiphy, 2262 "failed to set TX queue parameters for AC %d\n", 2263 params->ac); 2264 return -EINVAL; 2265 } 2266 2267 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2268 2269 return 0; 2270 } 2271 2272 #ifdef CONFIG_PM 2273 static int ieee80211_suspend(struct wiphy *wiphy, 2274 struct cfg80211_wowlan *wowlan) 2275 { 2276 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2277 } 2278 2279 static int ieee80211_resume(struct wiphy *wiphy) 2280 { 2281 return __ieee80211_resume(wiphy_priv(wiphy)); 2282 } 2283 #else 2284 #define ieee80211_suspend NULL 2285 #define ieee80211_resume NULL 2286 #endif 2287 2288 static int ieee80211_scan(struct wiphy *wiphy, 2289 struct cfg80211_scan_request *req) 2290 { 2291 struct ieee80211_sub_if_data *sdata; 2292 2293 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2294 2295 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2296 case NL80211_IFTYPE_STATION: 2297 case NL80211_IFTYPE_ADHOC: 2298 case NL80211_IFTYPE_MESH_POINT: 2299 case NL80211_IFTYPE_P2P_CLIENT: 2300 case NL80211_IFTYPE_P2P_DEVICE: 2301 break; 2302 case NL80211_IFTYPE_P2P_GO: 2303 if (sdata->local->ops->hw_scan) 2304 break; 2305 /* 2306 * FIXME: implement NoA while scanning in software, 2307 * for now fall through to allow scanning only when 2308 * beaconing hasn't been configured yet 2309 */ 2310 /* fall through */ 2311 case NL80211_IFTYPE_AP: 2312 /* 2313 * If the scan has been forced (and the driver supports 2314 * forcing), don't care about being beaconing already. 2315 * This will create problems to the attached stations (e.g. all 2316 * the frames sent while scanning on other channel will be 2317 * lost) 2318 */ 2319 if (sdata->u.ap.beacon && 2320 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2321 !(req->flags & NL80211_SCAN_FLAG_AP))) 2322 return -EOPNOTSUPP; 2323 break; 2324 case NL80211_IFTYPE_NAN: 2325 default: 2326 return -EOPNOTSUPP; 2327 } 2328 2329 return ieee80211_request_scan(sdata, req); 2330 } 2331 2332 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2333 { 2334 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2335 } 2336 2337 static int 2338 ieee80211_sched_scan_start(struct wiphy *wiphy, 2339 struct net_device *dev, 2340 struct cfg80211_sched_scan_request *req) 2341 { 2342 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2343 2344 if (!sdata->local->ops->sched_scan_start) 2345 return -EOPNOTSUPP; 2346 2347 return ieee80211_request_sched_scan_start(sdata, req); 2348 } 2349 2350 static int 2351 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2352 u64 reqid) 2353 { 2354 struct ieee80211_local *local = wiphy_priv(wiphy); 2355 2356 if (!local->ops->sched_scan_stop) 2357 return -EOPNOTSUPP; 2358 2359 return ieee80211_request_sched_scan_stop(local); 2360 } 2361 2362 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2363 struct cfg80211_auth_request *req) 2364 { 2365 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2366 } 2367 2368 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2369 struct cfg80211_assoc_request *req) 2370 { 2371 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2372 } 2373 2374 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2375 struct cfg80211_deauth_request *req) 2376 { 2377 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2378 } 2379 2380 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2381 struct cfg80211_disassoc_request *req) 2382 { 2383 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2384 } 2385 2386 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2387 struct cfg80211_ibss_params *params) 2388 { 2389 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2390 } 2391 2392 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2393 { 2394 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2395 } 2396 2397 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2398 struct ocb_setup *setup) 2399 { 2400 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2401 } 2402 2403 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2404 { 2405 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2406 } 2407 2408 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2409 int rate[NUM_NL80211_BANDS]) 2410 { 2411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2412 2413 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2414 sizeof(int) * NUM_NL80211_BANDS); 2415 2416 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2417 2418 return 0; 2419 } 2420 2421 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2422 { 2423 struct ieee80211_local *local = wiphy_priv(wiphy); 2424 int err; 2425 2426 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2427 ieee80211_check_fast_xmit_all(local); 2428 2429 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2430 2431 if (err) { 2432 ieee80211_check_fast_xmit_all(local); 2433 return err; 2434 } 2435 } 2436 2437 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2438 (changed & WIPHY_PARAM_DYN_ACK)) { 2439 s16 coverage_class; 2440 2441 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2442 wiphy->coverage_class : -1; 2443 err = drv_set_coverage_class(local, coverage_class); 2444 2445 if (err) 2446 return err; 2447 } 2448 2449 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2450 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2451 2452 if (err) 2453 return err; 2454 } 2455 2456 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2457 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2458 return -EINVAL; 2459 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2460 } 2461 if (changed & WIPHY_PARAM_RETRY_LONG) { 2462 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2463 return -EINVAL; 2464 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2465 } 2466 if (changed & 2467 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2468 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2469 2470 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2471 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2472 WIPHY_PARAM_TXQ_QUANTUM)) 2473 ieee80211_txq_set_params(local); 2474 2475 return 0; 2476 } 2477 2478 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2479 struct wireless_dev *wdev, 2480 enum nl80211_tx_power_setting type, int mbm) 2481 { 2482 struct ieee80211_local *local = wiphy_priv(wiphy); 2483 struct ieee80211_sub_if_data *sdata; 2484 enum nl80211_tx_power_setting txp_type = type; 2485 bool update_txp_type = false; 2486 bool has_monitor = false; 2487 2488 if (wdev) { 2489 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2490 2491 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2492 sdata = rtnl_dereference(local->monitor_sdata); 2493 if (!sdata) 2494 return -EOPNOTSUPP; 2495 } 2496 2497 switch (type) { 2498 case NL80211_TX_POWER_AUTOMATIC: 2499 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2500 txp_type = NL80211_TX_POWER_LIMITED; 2501 break; 2502 case NL80211_TX_POWER_LIMITED: 2503 case NL80211_TX_POWER_FIXED: 2504 if (mbm < 0 || (mbm % 100)) 2505 return -EOPNOTSUPP; 2506 sdata->user_power_level = MBM_TO_DBM(mbm); 2507 break; 2508 } 2509 2510 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2511 update_txp_type = true; 2512 sdata->vif.bss_conf.txpower_type = txp_type; 2513 } 2514 2515 ieee80211_recalc_txpower(sdata, update_txp_type); 2516 2517 return 0; 2518 } 2519 2520 switch (type) { 2521 case NL80211_TX_POWER_AUTOMATIC: 2522 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2523 txp_type = NL80211_TX_POWER_LIMITED; 2524 break; 2525 case NL80211_TX_POWER_LIMITED: 2526 case NL80211_TX_POWER_FIXED: 2527 if (mbm < 0 || (mbm % 100)) 2528 return -EOPNOTSUPP; 2529 local->user_power_level = MBM_TO_DBM(mbm); 2530 break; 2531 } 2532 2533 mutex_lock(&local->iflist_mtx); 2534 list_for_each_entry(sdata, &local->interfaces, list) { 2535 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2536 has_monitor = true; 2537 continue; 2538 } 2539 sdata->user_power_level = local->user_power_level; 2540 if (txp_type != sdata->vif.bss_conf.txpower_type) 2541 update_txp_type = true; 2542 sdata->vif.bss_conf.txpower_type = txp_type; 2543 } 2544 list_for_each_entry(sdata, &local->interfaces, list) { 2545 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2546 continue; 2547 ieee80211_recalc_txpower(sdata, update_txp_type); 2548 } 2549 mutex_unlock(&local->iflist_mtx); 2550 2551 if (has_monitor) { 2552 sdata = rtnl_dereference(local->monitor_sdata); 2553 if (sdata) { 2554 sdata->user_power_level = local->user_power_level; 2555 if (txp_type != sdata->vif.bss_conf.txpower_type) 2556 update_txp_type = true; 2557 sdata->vif.bss_conf.txpower_type = txp_type; 2558 2559 ieee80211_recalc_txpower(sdata, update_txp_type); 2560 } 2561 } 2562 2563 return 0; 2564 } 2565 2566 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2567 struct wireless_dev *wdev, 2568 int *dbm) 2569 { 2570 struct ieee80211_local *local = wiphy_priv(wiphy); 2571 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2572 2573 if (local->ops->get_txpower) 2574 return drv_get_txpower(local, sdata, dbm); 2575 2576 if (!local->use_chanctx) 2577 *dbm = local->hw.conf.power_level; 2578 else 2579 *dbm = sdata->vif.bss_conf.txpower; 2580 2581 return 0; 2582 } 2583 2584 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2585 const u8 *addr) 2586 { 2587 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2588 2589 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2590 2591 return 0; 2592 } 2593 2594 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2595 { 2596 struct ieee80211_local *local = wiphy_priv(wiphy); 2597 2598 drv_rfkill_poll(local); 2599 } 2600 2601 #ifdef CONFIG_NL80211_TESTMODE 2602 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2603 struct wireless_dev *wdev, 2604 void *data, int len) 2605 { 2606 struct ieee80211_local *local = wiphy_priv(wiphy); 2607 struct ieee80211_vif *vif = NULL; 2608 2609 if (!local->ops->testmode_cmd) 2610 return -EOPNOTSUPP; 2611 2612 if (wdev) { 2613 struct ieee80211_sub_if_data *sdata; 2614 2615 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2616 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2617 vif = &sdata->vif; 2618 } 2619 2620 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2621 } 2622 2623 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2624 struct sk_buff *skb, 2625 struct netlink_callback *cb, 2626 void *data, int len) 2627 { 2628 struct ieee80211_local *local = wiphy_priv(wiphy); 2629 2630 if (!local->ops->testmode_dump) 2631 return -EOPNOTSUPP; 2632 2633 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2634 } 2635 #endif 2636 2637 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2638 enum ieee80211_smps_mode smps_mode) 2639 { 2640 struct sta_info *sta; 2641 enum ieee80211_smps_mode old_req; 2642 2643 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2644 return -EINVAL; 2645 2646 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2647 return 0; 2648 2649 old_req = sdata->u.ap.req_smps; 2650 sdata->u.ap.req_smps = smps_mode; 2651 2652 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2653 if (old_req == smps_mode || 2654 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2655 return 0; 2656 2657 ht_dbg(sdata, 2658 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2659 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2660 2661 mutex_lock(&sdata->local->sta_mtx); 2662 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2663 /* 2664 * Only stations associated to our AP and 2665 * associated VLANs 2666 */ 2667 if (sta->sdata->bss != &sdata->u.ap) 2668 continue; 2669 2670 /* This station doesn't support MIMO - skip it */ 2671 if (sta_info_tx_streams(sta) == 1) 2672 continue; 2673 2674 /* 2675 * Don't wake up a STA just to send the action frame 2676 * unless we are getting more restrictive. 2677 */ 2678 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2679 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2680 smps_mode)) { 2681 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2682 sta->sta.addr); 2683 continue; 2684 } 2685 2686 /* 2687 * If the STA is not authorized, wait until it gets 2688 * authorized and the action frame will be sent then. 2689 */ 2690 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2691 continue; 2692 2693 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2694 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2695 sdata->vif.bss_conf.bssid); 2696 } 2697 mutex_unlock(&sdata->local->sta_mtx); 2698 2699 sdata->smps_mode = smps_mode; 2700 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2701 2702 return 0; 2703 } 2704 2705 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2706 enum ieee80211_smps_mode smps_mode) 2707 { 2708 const u8 *ap; 2709 enum ieee80211_smps_mode old_req; 2710 int err; 2711 struct sta_info *sta; 2712 bool tdls_peer_found = false; 2713 2714 lockdep_assert_held(&sdata->wdev.mtx); 2715 2716 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2717 return -EINVAL; 2718 2719 old_req = sdata->u.mgd.req_smps; 2720 sdata->u.mgd.req_smps = smps_mode; 2721 2722 if (old_req == smps_mode && 2723 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2724 return 0; 2725 2726 /* 2727 * If not associated, or current association is not an HT 2728 * association, there's no need to do anything, just store 2729 * the new value until we associate. 2730 */ 2731 if (!sdata->u.mgd.associated || 2732 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2733 return 0; 2734 2735 ap = sdata->u.mgd.associated->bssid; 2736 2737 rcu_read_lock(); 2738 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2739 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2740 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2741 continue; 2742 2743 tdls_peer_found = true; 2744 break; 2745 } 2746 rcu_read_unlock(); 2747 2748 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2749 if (tdls_peer_found || !sdata->u.mgd.powersave) 2750 smps_mode = IEEE80211_SMPS_OFF; 2751 else 2752 smps_mode = IEEE80211_SMPS_DYNAMIC; 2753 } 2754 2755 /* send SM PS frame to AP */ 2756 err = ieee80211_send_smps_action(sdata, smps_mode, 2757 ap, ap); 2758 if (err) 2759 sdata->u.mgd.req_smps = old_req; 2760 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2761 ieee80211_teardown_tdls_peers(sdata); 2762 2763 return err; 2764 } 2765 2766 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2767 bool enabled, int timeout) 2768 { 2769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2770 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2771 2772 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2773 return -EOPNOTSUPP; 2774 2775 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2776 return -EOPNOTSUPP; 2777 2778 if (enabled == sdata->u.mgd.powersave && 2779 timeout == local->dynamic_ps_forced_timeout) 2780 return 0; 2781 2782 sdata->u.mgd.powersave = enabled; 2783 local->dynamic_ps_forced_timeout = timeout; 2784 2785 /* no change, but if automatic follow powersave */ 2786 sdata_lock(sdata); 2787 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2788 sdata_unlock(sdata); 2789 2790 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2791 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2792 2793 ieee80211_recalc_ps(local); 2794 ieee80211_recalc_ps_vif(sdata); 2795 ieee80211_check_fast_rx_iface(sdata); 2796 2797 return 0; 2798 } 2799 2800 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2801 struct net_device *dev, 2802 s32 rssi_thold, u32 rssi_hyst) 2803 { 2804 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2805 struct ieee80211_vif *vif = &sdata->vif; 2806 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2807 2808 if (rssi_thold == bss_conf->cqm_rssi_thold && 2809 rssi_hyst == bss_conf->cqm_rssi_hyst) 2810 return 0; 2811 2812 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2813 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2814 return -EOPNOTSUPP; 2815 2816 bss_conf->cqm_rssi_thold = rssi_thold; 2817 bss_conf->cqm_rssi_hyst = rssi_hyst; 2818 bss_conf->cqm_rssi_low = 0; 2819 bss_conf->cqm_rssi_high = 0; 2820 sdata->u.mgd.last_cqm_event_signal = 0; 2821 2822 /* tell the driver upon association, unless already associated */ 2823 if (sdata->u.mgd.associated && 2824 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2825 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2826 2827 return 0; 2828 } 2829 2830 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2831 struct net_device *dev, 2832 s32 rssi_low, s32 rssi_high) 2833 { 2834 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2835 struct ieee80211_vif *vif = &sdata->vif; 2836 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2837 2838 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2839 return -EOPNOTSUPP; 2840 2841 bss_conf->cqm_rssi_low = rssi_low; 2842 bss_conf->cqm_rssi_high = rssi_high; 2843 bss_conf->cqm_rssi_thold = 0; 2844 bss_conf->cqm_rssi_hyst = 0; 2845 sdata->u.mgd.last_cqm_event_signal = 0; 2846 2847 /* tell the driver upon association, unless already associated */ 2848 if (sdata->u.mgd.associated && 2849 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2850 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2851 2852 return 0; 2853 } 2854 2855 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2856 struct net_device *dev, 2857 const u8 *addr, 2858 const struct cfg80211_bitrate_mask *mask) 2859 { 2860 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2861 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2862 int i, ret; 2863 2864 if (!ieee80211_sdata_running(sdata)) 2865 return -ENETDOWN; 2866 2867 /* 2868 * If active validate the setting and reject it if it doesn't leave 2869 * at least one basic rate usable, since we really have to be able 2870 * to send something, and if we're an AP we have to be able to do 2871 * so at a basic rate so that all clients can receive it. 2872 */ 2873 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2874 sdata->vif.bss_conf.chandef.chan) { 2875 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2876 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2877 2878 if (!(mask->control[band].legacy & basic_rates)) 2879 return -EINVAL; 2880 } 2881 2882 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2883 ret = drv_set_bitrate_mask(local, sdata, mask); 2884 if (ret) 2885 return ret; 2886 } 2887 2888 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2889 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2890 int j; 2891 2892 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2893 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2894 sizeof(mask->control[i].ht_mcs)); 2895 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2896 mask->control[i].vht_mcs, 2897 sizeof(mask->control[i].vht_mcs)); 2898 2899 sdata->rc_has_mcs_mask[i] = false; 2900 sdata->rc_has_vht_mcs_mask[i] = false; 2901 if (!sband) 2902 continue; 2903 2904 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2905 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2906 sdata->rc_has_mcs_mask[i] = true; 2907 break; 2908 } 2909 } 2910 2911 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2912 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2913 sdata->rc_has_vht_mcs_mask[i] = true; 2914 break; 2915 } 2916 } 2917 } 2918 2919 return 0; 2920 } 2921 2922 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2923 struct net_device *dev, 2924 struct cfg80211_chan_def *chandef, 2925 u32 cac_time_ms) 2926 { 2927 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2928 struct ieee80211_local *local = sdata->local; 2929 int err; 2930 2931 mutex_lock(&local->mtx); 2932 if (!list_empty(&local->roc_list) || local->scanning) { 2933 err = -EBUSY; 2934 goto out_unlock; 2935 } 2936 2937 /* whatever, but channel contexts should not complain about that one */ 2938 sdata->smps_mode = IEEE80211_SMPS_OFF; 2939 sdata->needed_rx_chains = local->rx_chains; 2940 2941 err = ieee80211_vif_use_channel(sdata, chandef, 2942 IEEE80211_CHANCTX_SHARED); 2943 if (err) 2944 goto out_unlock; 2945 2946 ieee80211_queue_delayed_work(&sdata->local->hw, 2947 &sdata->dfs_cac_timer_work, 2948 msecs_to_jiffies(cac_time_ms)); 2949 2950 out_unlock: 2951 mutex_unlock(&local->mtx); 2952 return err; 2953 } 2954 2955 static struct cfg80211_beacon_data * 2956 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2957 { 2958 struct cfg80211_beacon_data *new_beacon; 2959 u8 *pos; 2960 int len; 2961 2962 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2963 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2964 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2965 2966 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2967 if (!new_beacon) 2968 return NULL; 2969 2970 pos = (u8 *)(new_beacon + 1); 2971 if (beacon->head_len) { 2972 new_beacon->head_len = beacon->head_len; 2973 new_beacon->head = pos; 2974 memcpy(pos, beacon->head, beacon->head_len); 2975 pos += beacon->head_len; 2976 } 2977 if (beacon->tail_len) { 2978 new_beacon->tail_len = beacon->tail_len; 2979 new_beacon->tail = pos; 2980 memcpy(pos, beacon->tail, beacon->tail_len); 2981 pos += beacon->tail_len; 2982 } 2983 if (beacon->beacon_ies_len) { 2984 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2985 new_beacon->beacon_ies = pos; 2986 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2987 pos += beacon->beacon_ies_len; 2988 } 2989 if (beacon->proberesp_ies_len) { 2990 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2991 new_beacon->proberesp_ies = pos; 2992 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2993 pos += beacon->proberesp_ies_len; 2994 } 2995 if (beacon->assocresp_ies_len) { 2996 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2997 new_beacon->assocresp_ies = pos; 2998 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2999 pos += beacon->assocresp_ies_len; 3000 } 3001 if (beacon->probe_resp_len) { 3002 new_beacon->probe_resp_len = beacon->probe_resp_len; 3003 new_beacon->probe_resp = pos; 3004 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3005 pos += beacon->probe_resp_len; 3006 } 3007 3008 /* might copy -1, meaning no changes requested */ 3009 new_beacon->ftm_responder = beacon->ftm_responder; 3010 if (beacon->lci) { 3011 new_beacon->lci_len = beacon->lci_len; 3012 new_beacon->lci = pos; 3013 memcpy(pos, beacon->lci, beacon->lci_len); 3014 pos += beacon->lci_len; 3015 } 3016 if (beacon->civicloc) { 3017 new_beacon->civicloc_len = beacon->civicloc_len; 3018 new_beacon->civicloc = pos; 3019 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3020 pos += beacon->civicloc_len; 3021 } 3022 3023 return new_beacon; 3024 } 3025 3026 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3027 { 3028 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3029 3030 ieee80211_queue_work(&sdata->local->hw, 3031 &sdata->csa_finalize_work); 3032 } 3033 EXPORT_SYMBOL(ieee80211_csa_finish); 3034 3035 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3036 u32 *changed) 3037 { 3038 int err; 3039 3040 switch (sdata->vif.type) { 3041 case NL80211_IFTYPE_AP: 3042 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3043 NULL); 3044 kfree(sdata->u.ap.next_beacon); 3045 sdata->u.ap.next_beacon = NULL; 3046 3047 if (err < 0) 3048 return err; 3049 *changed |= err; 3050 break; 3051 case NL80211_IFTYPE_ADHOC: 3052 err = ieee80211_ibss_finish_csa(sdata); 3053 if (err < 0) 3054 return err; 3055 *changed |= err; 3056 break; 3057 #ifdef CONFIG_MAC80211_MESH 3058 case NL80211_IFTYPE_MESH_POINT: 3059 err = ieee80211_mesh_finish_csa(sdata); 3060 if (err < 0) 3061 return err; 3062 *changed |= err; 3063 break; 3064 #endif 3065 default: 3066 WARN_ON(1); 3067 return -EINVAL; 3068 } 3069 3070 return 0; 3071 } 3072 3073 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3074 { 3075 struct ieee80211_local *local = sdata->local; 3076 u32 changed = 0; 3077 int err; 3078 3079 sdata_assert_lock(sdata); 3080 lockdep_assert_held(&local->mtx); 3081 lockdep_assert_held(&local->chanctx_mtx); 3082 3083 /* 3084 * using reservation isn't immediate as it may be deferred until later 3085 * with multi-vif. once reservation is complete it will re-schedule the 3086 * work with no reserved_chanctx so verify chandef to check if it 3087 * completed successfully 3088 */ 3089 3090 if (sdata->reserved_chanctx) { 3091 /* 3092 * with multi-vif csa driver may call ieee80211_csa_finish() 3093 * many times while waiting for other interfaces to use their 3094 * reservations 3095 */ 3096 if (sdata->reserved_ready) 3097 return 0; 3098 3099 return ieee80211_vif_use_reserved_context(sdata); 3100 } 3101 3102 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3103 &sdata->csa_chandef)) 3104 return -EINVAL; 3105 3106 sdata->vif.csa_active = false; 3107 3108 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3109 if (err) 3110 return err; 3111 3112 ieee80211_bss_info_change_notify(sdata, changed); 3113 3114 if (sdata->csa_block_tx) { 3115 ieee80211_wake_vif_queues(local, sdata, 3116 IEEE80211_QUEUE_STOP_REASON_CSA); 3117 sdata->csa_block_tx = false; 3118 } 3119 3120 err = drv_post_channel_switch(sdata); 3121 if (err) 3122 return err; 3123 3124 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3125 3126 return 0; 3127 } 3128 3129 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3130 { 3131 if (__ieee80211_csa_finalize(sdata)) { 3132 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3133 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3134 GFP_KERNEL); 3135 } 3136 } 3137 3138 void ieee80211_csa_finalize_work(struct work_struct *work) 3139 { 3140 struct ieee80211_sub_if_data *sdata = 3141 container_of(work, struct ieee80211_sub_if_data, 3142 csa_finalize_work); 3143 struct ieee80211_local *local = sdata->local; 3144 3145 sdata_lock(sdata); 3146 mutex_lock(&local->mtx); 3147 mutex_lock(&local->chanctx_mtx); 3148 3149 /* AP might have been stopped while waiting for the lock. */ 3150 if (!sdata->vif.csa_active) 3151 goto unlock; 3152 3153 if (!ieee80211_sdata_running(sdata)) 3154 goto unlock; 3155 3156 ieee80211_csa_finalize(sdata); 3157 3158 unlock: 3159 mutex_unlock(&local->chanctx_mtx); 3160 mutex_unlock(&local->mtx); 3161 sdata_unlock(sdata); 3162 } 3163 3164 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3165 struct cfg80211_csa_settings *params, 3166 u32 *changed) 3167 { 3168 struct ieee80211_csa_settings csa = {}; 3169 int err; 3170 3171 switch (sdata->vif.type) { 3172 case NL80211_IFTYPE_AP: 3173 sdata->u.ap.next_beacon = 3174 cfg80211_beacon_dup(¶ms->beacon_after); 3175 if (!sdata->u.ap.next_beacon) 3176 return -ENOMEM; 3177 3178 /* 3179 * With a count of 0, we don't have to wait for any 3180 * TBTT before switching, so complete the CSA 3181 * immediately. In theory, with a count == 1 we 3182 * should delay the switch until just before the next 3183 * TBTT, but that would complicate things so we switch 3184 * immediately too. If we would delay the switch 3185 * until the next TBTT, we would have to set the probe 3186 * response here. 3187 * 3188 * TODO: A channel switch with count <= 1 without 3189 * sending a CSA action frame is kind of useless, 3190 * because the clients won't know we're changing 3191 * channels. The action frame must be implemented 3192 * either here or in the userspace. 3193 */ 3194 if (params->count <= 1) 3195 break; 3196 3197 if ((params->n_counter_offsets_beacon > 3198 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3199 (params->n_counter_offsets_presp > 3200 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3201 return -EINVAL; 3202 3203 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3204 csa.counter_offsets_presp = params->counter_offsets_presp; 3205 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3206 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3207 csa.count = params->count; 3208 3209 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3210 if (err < 0) { 3211 kfree(sdata->u.ap.next_beacon); 3212 return err; 3213 } 3214 *changed |= err; 3215 3216 break; 3217 case NL80211_IFTYPE_ADHOC: 3218 if (!sdata->vif.bss_conf.ibss_joined) 3219 return -EINVAL; 3220 3221 if (params->chandef.width != sdata->u.ibss.chandef.width) 3222 return -EINVAL; 3223 3224 switch (params->chandef.width) { 3225 case NL80211_CHAN_WIDTH_40: 3226 if (cfg80211_get_chandef_type(¶ms->chandef) != 3227 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3228 return -EINVAL; 3229 case NL80211_CHAN_WIDTH_5: 3230 case NL80211_CHAN_WIDTH_10: 3231 case NL80211_CHAN_WIDTH_20_NOHT: 3232 case NL80211_CHAN_WIDTH_20: 3233 break; 3234 default: 3235 return -EINVAL; 3236 } 3237 3238 /* changes into another band are not supported */ 3239 if (sdata->u.ibss.chandef.chan->band != 3240 params->chandef.chan->band) 3241 return -EINVAL; 3242 3243 /* see comments in the NL80211_IFTYPE_AP block */ 3244 if (params->count > 1) { 3245 err = ieee80211_ibss_csa_beacon(sdata, params); 3246 if (err < 0) 3247 return err; 3248 *changed |= err; 3249 } 3250 3251 ieee80211_send_action_csa(sdata, params); 3252 3253 break; 3254 #ifdef CONFIG_MAC80211_MESH 3255 case NL80211_IFTYPE_MESH_POINT: { 3256 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3257 3258 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3259 return -EINVAL; 3260 3261 /* changes into another band are not supported */ 3262 if (sdata->vif.bss_conf.chandef.chan->band != 3263 params->chandef.chan->band) 3264 return -EINVAL; 3265 3266 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3267 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3268 if (!ifmsh->pre_value) 3269 ifmsh->pre_value = 1; 3270 else 3271 ifmsh->pre_value++; 3272 } 3273 3274 /* see comments in the NL80211_IFTYPE_AP block */ 3275 if (params->count > 1) { 3276 err = ieee80211_mesh_csa_beacon(sdata, params); 3277 if (err < 0) { 3278 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3279 return err; 3280 } 3281 *changed |= err; 3282 } 3283 3284 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3285 ieee80211_send_action_csa(sdata, params); 3286 3287 break; 3288 } 3289 #endif 3290 default: 3291 return -EOPNOTSUPP; 3292 } 3293 3294 return 0; 3295 } 3296 3297 static int 3298 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3299 struct cfg80211_csa_settings *params) 3300 { 3301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3302 struct ieee80211_local *local = sdata->local; 3303 struct ieee80211_channel_switch ch_switch; 3304 struct ieee80211_chanctx_conf *conf; 3305 struct ieee80211_chanctx *chanctx; 3306 u32 changed = 0; 3307 int err; 3308 3309 sdata_assert_lock(sdata); 3310 lockdep_assert_held(&local->mtx); 3311 3312 if (!list_empty(&local->roc_list) || local->scanning) 3313 return -EBUSY; 3314 3315 if (sdata->wdev.cac_started) 3316 return -EBUSY; 3317 3318 if (cfg80211_chandef_identical(¶ms->chandef, 3319 &sdata->vif.bss_conf.chandef)) 3320 return -EINVAL; 3321 3322 /* don't allow another channel switch if one is already active. */ 3323 if (sdata->vif.csa_active) 3324 return -EBUSY; 3325 3326 mutex_lock(&local->chanctx_mtx); 3327 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3328 lockdep_is_held(&local->chanctx_mtx)); 3329 if (!conf) { 3330 err = -EBUSY; 3331 goto out; 3332 } 3333 3334 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3335 3336 ch_switch.timestamp = 0; 3337 ch_switch.device_timestamp = 0; 3338 ch_switch.block_tx = params->block_tx; 3339 ch_switch.chandef = params->chandef; 3340 ch_switch.count = params->count; 3341 3342 err = drv_pre_channel_switch(sdata, &ch_switch); 3343 if (err) 3344 goto out; 3345 3346 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3347 chanctx->mode, 3348 params->radar_required); 3349 if (err) 3350 goto out; 3351 3352 /* if reservation is invalid then this will fail */ 3353 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3354 if (err) { 3355 ieee80211_vif_unreserve_chanctx(sdata); 3356 goto out; 3357 } 3358 3359 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3360 if (err) { 3361 ieee80211_vif_unreserve_chanctx(sdata); 3362 goto out; 3363 } 3364 3365 sdata->csa_chandef = params->chandef; 3366 sdata->csa_block_tx = params->block_tx; 3367 sdata->vif.csa_active = true; 3368 3369 if (sdata->csa_block_tx) 3370 ieee80211_stop_vif_queues(local, sdata, 3371 IEEE80211_QUEUE_STOP_REASON_CSA); 3372 3373 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3374 params->count); 3375 3376 if (changed) { 3377 ieee80211_bss_info_change_notify(sdata, changed); 3378 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3379 } else { 3380 /* if the beacon didn't change, we can finalize immediately */ 3381 ieee80211_csa_finalize(sdata); 3382 } 3383 3384 out: 3385 mutex_unlock(&local->chanctx_mtx); 3386 return err; 3387 } 3388 3389 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3390 struct cfg80211_csa_settings *params) 3391 { 3392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3393 struct ieee80211_local *local = sdata->local; 3394 int err; 3395 3396 mutex_lock(&local->mtx); 3397 err = __ieee80211_channel_switch(wiphy, dev, params); 3398 mutex_unlock(&local->mtx); 3399 3400 return err; 3401 } 3402 3403 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3404 { 3405 lockdep_assert_held(&local->mtx); 3406 3407 local->roc_cookie_counter++; 3408 3409 /* wow, you wrapped 64 bits ... more likely a bug */ 3410 if (WARN_ON(local->roc_cookie_counter == 0)) 3411 local->roc_cookie_counter++; 3412 3413 return local->roc_cookie_counter; 3414 } 3415 3416 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3417 u64 *cookie, gfp_t gfp) 3418 { 3419 unsigned long spin_flags; 3420 struct sk_buff *ack_skb; 3421 int id; 3422 3423 ack_skb = skb_copy(skb, gfp); 3424 if (!ack_skb) 3425 return -ENOMEM; 3426 3427 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3428 id = idr_alloc(&local->ack_status_frames, ack_skb, 3429 1, 0x10000, GFP_ATOMIC); 3430 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3431 3432 if (id < 0) { 3433 kfree_skb(ack_skb); 3434 return -ENOMEM; 3435 } 3436 3437 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3438 3439 *cookie = ieee80211_mgmt_tx_cookie(local); 3440 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3441 3442 return 0; 3443 } 3444 3445 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3446 struct wireless_dev *wdev, 3447 u16 frame_type, bool reg) 3448 { 3449 struct ieee80211_local *local = wiphy_priv(wiphy); 3450 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3451 3452 switch (frame_type) { 3453 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3454 if (reg) { 3455 local->probe_req_reg++; 3456 sdata->vif.probe_req_reg++; 3457 } else { 3458 if (local->probe_req_reg) 3459 local->probe_req_reg--; 3460 3461 if (sdata->vif.probe_req_reg) 3462 sdata->vif.probe_req_reg--; 3463 } 3464 3465 if (!local->open_count) 3466 break; 3467 3468 if (sdata->vif.probe_req_reg == 1) 3469 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3470 FIF_PROBE_REQ); 3471 else if (sdata->vif.probe_req_reg == 0) 3472 drv_config_iface_filter(local, sdata, 0, 3473 FIF_PROBE_REQ); 3474 3475 ieee80211_configure_filter(local); 3476 break; 3477 default: 3478 break; 3479 } 3480 } 3481 3482 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3483 { 3484 struct ieee80211_local *local = wiphy_priv(wiphy); 3485 3486 if (local->started) 3487 return -EOPNOTSUPP; 3488 3489 return drv_set_antenna(local, tx_ant, rx_ant); 3490 } 3491 3492 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3493 { 3494 struct ieee80211_local *local = wiphy_priv(wiphy); 3495 3496 return drv_get_antenna(local, tx_ant, rx_ant); 3497 } 3498 3499 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3500 struct net_device *dev, 3501 struct cfg80211_gtk_rekey_data *data) 3502 { 3503 struct ieee80211_local *local = wiphy_priv(wiphy); 3504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3505 3506 if (!local->ops->set_rekey_data) 3507 return -EOPNOTSUPP; 3508 3509 drv_set_rekey_data(local, sdata, data); 3510 3511 return 0; 3512 } 3513 3514 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3515 const u8 *peer, u64 *cookie) 3516 { 3517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3518 struct ieee80211_local *local = sdata->local; 3519 struct ieee80211_qos_hdr *nullfunc; 3520 struct sk_buff *skb; 3521 int size = sizeof(*nullfunc); 3522 __le16 fc; 3523 bool qos; 3524 struct ieee80211_tx_info *info; 3525 struct sta_info *sta; 3526 struct ieee80211_chanctx_conf *chanctx_conf; 3527 enum nl80211_band band; 3528 int ret; 3529 3530 /* the lock is needed to assign the cookie later */ 3531 mutex_lock(&local->mtx); 3532 3533 rcu_read_lock(); 3534 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3535 if (WARN_ON(!chanctx_conf)) { 3536 ret = -EINVAL; 3537 goto unlock; 3538 } 3539 band = chanctx_conf->def.chan->band; 3540 sta = sta_info_get_bss(sdata, peer); 3541 if (sta) { 3542 qos = sta->sta.wme; 3543 } else { 3544 ret = -ENOLINK; 3545 goto unlock; 3546 } 3547 3548 if (qos) { 3549 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3550 IEEE80211_STYPE_QOS_NULLFUNC | 3551 IEEE80211_FCTL_FROMDS); 3552 } else { 3553 size -= 2; 3554 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3555 IEEE80211_STYPE_NULLFUNC | 3556 IEEE80211_FCTL_FROMDS); 3557 } 3558 3559 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3560 if (!skb) { 3561 ret = -ENOMEM; 3562 goto unlock; 3563 } 3564 3565 skb->dev = dev; 3566 3567 skb_reserve(skb, local->hw.extra_tx_headroom); 3568 3569 nullfunc = skb_put(skb, size); 3570 nullfunc->frame_control = fc; 3571 nullfunc->duration_id = 0; 3572 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3573 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3574 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3575 nullfunc->seq_ctrl = 0; 3576 3577 info = IEEE80211_SKB_CB(skb); 3578 3579 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3580 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3581 info->band = band; 3582 3583 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3584 skb->priority = 7; 3585 if (qos) 3586 nullfunc->qos_ctrl = cpu_to_le16(7); 3587 3588 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3589 if (ret) { 3590 kfree_skb(skb); 3591 goto unlock; 3592 } 3593 3594 local_bh_disable(); 3595 ieee80211_xmit(sdata, sta, skb, 0); 3596 local_bh_enable(); 3597 3598 ret = 0; 3599 unlock: 3600 rcu_read_unlock(); 3601 mutex_unlock(&local->mtx); 3602 3603 return ret; 3604 } 3605 3606 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3607 struct wireless_dev *wdev, 3608 struct cfg80211_chan_def *chandef) 3609 { 3610 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3611 struct ieee80211_local *local = wiphy_priv(wiphy); 3612 struct ieee80211_chanctx_conf *chanctx_conf; 3613 int ret = -ENODATA; 3614 3615 rcu_read_lock(); 3616 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3617 if (chanctx_conf) { 3618 *chandef = sdata->vif.bss_conf.chandef; 3619 ret = 0; 3620 } else if (local->open_count > 0 && 3621 local->open_count == local->monitors && 3622 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3623 if (local->use_chanctx) 3624 *chandef = local->monitor_chandef; 3625 else 3626 *chandef = local->_oper_chandef; 3627 ret = 0; 3628 } 3629 rcu_read_unlock(); 3630 3631 return ret; 3632 } 3633 3634 #ifdef CONFIG_PM 3635 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3636 { 3637 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3638 } 3639 #endif 3640 3641 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3642 struct net_device *dev, 3643 struct cfg80211_qos_map *qos_map) 3644 { 3645 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3646 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3647 3648 if (qos_map) { 3649 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3650 if (!new_qos_map) 3651 return -ENOMEM; 3652 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3653 } else { 3654 /* A NULL qos_map was passed to disable QoS mapping */ 3655 new_qos_map = NULL; 3656 } 3657 3658 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3659 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3660 if (old_qos_map) 3661 kfree_rcu(old_qos_map, rcu_head); 3662 3663 return 0; 3664 } 3665 3666 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3667 struct net_device *dev, 3668 struct cfg80211_chan_def *chandef) 3669 { 3670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3671 int ret; 3672 u32 changed = 0; 3673 3674 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3675 if (ret == 0) 3676 ieee80211_bss_info_change_notify(sdata, changed); 3677 3678 return ret; 3679 } 3680 3681 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3682 u8 tsid, const u8 *peer, u8 up, 3683 u16 admitted_time) 3684 { 3685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3686 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3687 int ac = ieee802_1d_to_ac[up]; 3688 3689 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3690 return -EOPNOTSUPP; 3691 3692 if (!(sdata->wmm_acm & BIT(up))) 3693 return -EINVAL; 3694 3695 if (ifmgd->tx_tspec[ac].admitted_time) 3696 return -EBUSY; 3697 3698 if (admitted_time) { 3699 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3700 ifmgd->tx_tspec[ac].tsid = tsid; 3701 ifmgd->tx_tspec[ac].up = up; 3702 } 3703 3704 return 0; 3705 } 3706 3707 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3708 u8 tsid, const u8 *peer) 3709 { 3710 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3711 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3712 struct ieee80211_local *local = wiphy_priv(wiphy); 3713 int ac; 3714 3715 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3716 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3717 3718 /* skip unused entries */ 3719 if (!tx_tspec->admitted_time) 3720 continue; 3721 3722 if (tx_tspec->tsid != tsid) 3723 continue; 3724 3725 /* due to this new packets will be reassigned to non-ACM ACs */ 3726 tx_tspec->up = -1; 3727 3728 /* Make sure that all packets have been sent to avoid to 3729 * restore the QoS params on packets that are still on the 3730 * queues. 3731 */ 3732 synchronize_net(); 3733 ieee80211_flush_queues(local, sdata, false); 3734 3735 /* restore the normal QoS parameters 3736 * (unconditionally to avoid races) 3737 */ 3738 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3739 tx_tspec->downgraded = false; 3740 ieee80211_sta_handle_tspec_ac_params(sdata); 3741 3742 /* finally clear all the data */ 3743 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3744 3745 return 0; 3746 } 3747 3748 return -ENOENT; 3749 } 3750 3751 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3752 u8 inst_id, 3753 enum nl80211_nan_func_term_reason reason, 3754 gfp_t gfp) 3755 { 3756 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3757 struct cfg80211_nan_func *func; 3758 u64 cookie; 3759 3760 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3761 return; 3762 3763 spin_lock_bh(&sdata->u.nan.func_lock); 3764 3765 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3766 if (WARN_ON(!func)) { 3767 spin_unlock_bh(&sdata->u.nan.func_lock); 3768 return; 3769 } 3770 3771 cookie = func->cookie; 3772 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3773 3774 spin_unlock_bh(&sdata->u.nan.func_lock); 3775 3776 cfg80211_free_nan_func(func); 3777 3778 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3779 reason, cookie, gfp); 3780 } 3781 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3782 3783 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3784 struct cfg80211_nan_match_params *match, 3785 gfp_t gfp) 3786 { 3787 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3788 struct cfg80211_nan_func *func; 3789 3790 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3791 return; 3792 3793 spin_lock_bh(&sdata->u.nan.func_lock); 3794 3795 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3796 if (WARN_ON(!func)) { 3797 spin_unlock_bh(&sdata->u.nan.func_lock); 3798 return; 3799 } 3800 match->cookie = func->cookie; 3801 3802 spin_unlock_bh(&sdata->u.nan.func_lock); 3803 3804 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3805 } 3806 EXPORT_SYMBOL(ieee80211_nan_func_match); 3807 3808 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3809 struct net_device *dev, 3810 const bool enabled) 3811 { 3812 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3813 3814 sdata->u.ap.multicast_to_unicast = enabled; 3815 3816 return 0; 3817 } 3818 3819 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3820 struct txq_info *txqi) 3821 { 3822 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3823 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3824 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3825 } 3826 3827 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3828 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3829 txqstats->backlog_packets = txqi->tin.backlog_packets; 3830 } 3831 3832 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3833 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3834 txqstats->flows = txqi->tin.flows; 3835 } 3836 3837 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3838 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3839 txqstats->drops = txqi->cstats.drop_count; 3840 } 3841 3842 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3843 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3844 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3845 } 3846 3847 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3848 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3849 txqstats->overlimit = txqi->tin.overlimit; 3850 } 3851 3852 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3853 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3854 txqstats->collisions = txqi->tin.collisions; 3855 } 3856 3857 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3858 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3859 txqstats->tx_bytes = txqi->tin.tx_bytes; 3860 } 3861 3862 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3863 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3864 txqstats->tx_packets = txqi->tin.tx_packets; 3865 } 3866 } 3867 3868 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3869 struct wireless_dev *wdev, 3870 struct cfg80211_txq_stats *txqstats) 3871 { 3872 struct ieee80211_local *local = wiphy_priv(wiphy); 3873 struct ieee80211_sub_if_data *sdata; 3874 int ret = 0; 3875 3876 if (!local->ops->wake_tx_queue) 3877 return 1; 3878 3879 spin_lock_bh(&local->fq.lock); 3880 rcu_read_lock(); 3881 3882 if (wdev) { 3883 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3884 if (!sdata->vif.txq) { 3885 ret = 1; 3886 goto out; 3887 } 3888 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3889 } else { 3890 /* phy stats */ 3891 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3892 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3893 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3894 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3895 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3896 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3897 txqstats->backlog_packets = local->fq.backlog; 3898 txqstats->backlog_bytes = local->fq.memory_usage; 3899 txqstats->overlimit = local->fq.overlimit; 3900 txqstats->overmemory = local->fq.overmemory; 3901 txqstats->collisions = local->fq.collisions; 3902 txqstats->max_flows = local->fq.flows_cnt; 3903 } 3904 3905 out: 3906 rcu_read_unlock(); 3907 spin_unlock_bh(&local->fq.lock); 3908 3909 return ret; 3910 } 3911 3912 static int 3913 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3914 struct net_device *dev, 3915 struct cfg80211_ftm_responder_stats *ftm_stats) 3916 { 3917 struct ieee80211_local *local = wiphy_priv(wiphy); 3918 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3919 3920 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3921 } 3922 3923 static int 3924 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3925 struct cfg80211_pmsr_request *request) 3926 { 3927 struct ieee80211_local *local = wiphy_priv(wiphy); 3928 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3929 3930 return drv_start_pmsr(local, sdata, request); 3931 } 3932 3933 static void 3934 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3935 struct cfg80211_pmsr_request *request) 3936 { 3937 struct ieee80211_local *local = wiphy_priv(wiphy); 3938 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3939 3940 return drv_abort_pmsr(local, sdata, request); 3941 } 3942 3943 const struct cfg80211_ops mac80211_config_ops = { 3944 .add_virtual_intf = ieee80211_add_iface, 3945 .del_virtual_intf = ieee80211_del_iface, 3946 .change_virtual_intf = ieee80211_change_iface, 3947 .start_p2p_device = ieee80211_start_p2p_device, 3948 .stop_p2p_device = ieee80211_stop_p2p_device, 3949 .add_key = ieee80211_add_key, 3950 .del_key = ieee80211_del_key, 3951 .get_key = ieee80211_get_key, 3952 .set_default_key = ieee80211_config_default_key, 3953 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3954 .start_ap = ieee80211_start_ap, 3955 .change_beacon = ieee80211_change_beacon, 3956 .stop_ap = ieee80211_stop_ap, 3957 .add_station = ieee80211_add_station, 3958 .del_station = ieee80211_del_station, 3959 .change_station = ieee80211_change_station, 3960 .get_station = ieee80211_get_station, 3961 .dump_station = ieee80211_dump_station, 3962 .dump_survey = ieee80211_dump_survey, 3963 #ifdef CONFIG_MAC80211_MESH 3964 .add_mpath = ieee80211_add_mpath, 3965 .del_mpath = ieee80211_del_mpath, 3966 .change_mpath = ieee80211_change_mpath, 3967 .get_mpath = ieee80211_get_mpath, 3968 .dump_mpath = ieee80211_dump_mpath, 3969 .get_mpp = ieee80211_get_mpp, 3970 .dump_mpp = ieee80211_dump_mpp, 3971 .update_mesh_config = ieee80211_update_mesh_config, 3972 .get_mesh_config = ieee80211_get_mesh_config, 3973 .join_mesh = ieee80211_join_mesh, 3974 .leave_mesh = ieee80211_leave_mesh, 3975 #endif 3976 .join_ocb = ieee80211_join_ocb, 3977 .leave_ocb = ieee80211_leave_ocb, 3978 .change_bss = ieee80211_change_bss, 3979 .set_txq_params = ieee80211_set_txq_params, 3980 .set_monitor_channel = ieee80211_set_monitor_channel, 3981 .suspend = ieee80211_suspend, 3982 .resume = ieee80211_resume, 3983 .scan = ieee80211_scan, 3984 .abort_scan = ieee80211_abort_scan, 3985 .sched_scan_start = ieee80211_sched_scan_start, 3986 .sched_scan_stop = ieee80211_sched_scan_stop, 3987 .auth = ieee80211_auth, 3988 .assoc = ieee80211_assoc, 3989 .deauth = ieee80211_deauth, 3990 .disassoc = ieee80211_disassoc, 3991 .join_ibss = ieee80211_join_ibss, 3992 .leave_ibss = ieee80211_leave_ibss, 3993 .set_mcast_rate = ieee80211_set_mcast_rate, 3994 .set_wiphy_params = ieee80211_set_wiphy_params, 3995 .set_tx_power = ieee80211_set_tx_power, 3996 .get_tx_power = ieee80211_get_tx_power, 3997 .set_wds_peer = ieee80211_set_wds_peer, 3998 .rfkill_poll = ieee80211_rfkill_poll, 3999 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4000 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4001 .set_power_mgmt = ieee80211_set_power_mgmt, 4002 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4003 .remain_on_channel = ieee80211_remain_on_channel, 4004 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4005 .mgmt_tx = ieee80211_mgmt_tx, 4006 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4007 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4008 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4009 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4010 .set_antenna = ieee80211_set_antenna, 4011 .get_antenna = ieee80211_get_antenna, 4012 .set_rekey_data = ieee80211_set_rekey_data, 4013 .tdls_oper = ieee80211_tdls_oper, 4014 .tdls_mgmt = ieee80211_tdls_mgmt, 4015 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4016 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4017 .probe_client = ieee80211_probe_client, 4018 .set_noack_map = ieee80211_set_noack_map, 4019 #ifdef CONFIG_PM 4020 .set_wakeup = ieee80211_set_wakeup, 4021 #endif 4022 .get_channel = ieee80211_cfg_get_channel, 4023 .start_radar_detection = ieee80211_start_radar_detection, 4024 .channel_switch = ieee80211_channel_switch, 4025 .set_qos_map = ieee80211_set_qos_map, 4026 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4027 .add_tx_ts = ieee80211_add_tx_ts, 4028 .del_tx_ts = ieee80211_del_tx_ts, 4029 .start_nan = ieee80211_start_nan, 4030 .stop_nan = ieee80211_stop_nan, 4031 .nan_change_conf = ieee80211_nan_change_conf, 4032 .add_nan_func = ieee80211_add_nan_func, 4033 .del_nan_func = ieee80211_del_nan_func, 4034 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4035 .tx_control_port = ieee80211_tx_control_port, 4036 .get_txq_stats = ieee80211_get_txq_stats, 4037 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4038 .start_pmsr = ieee80211_start_pmsr, 4039 .abort_pmsr = ieee80211_abort_pmsr, 4040 .probe_mesh_link = ieee80211_probe_mesh_link, 4041 }; 4042