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 kfree(new); 941 return err; 942 } 943 if (err == 0) 944 changed |= BSS_CHANGED_AP_PROBE_RESP; 945 946 if (params->ftm_responder != -1) { 947 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 948 err = ieee80211_set_ftm_responder_params(sdata, 949 params->lci, 950 params->lci_len, 951 params->civicloc, 952 params->civicloc_len); 953 954 if (err < 0) { 955 kfree(new); 956 return err; 957 } 958 959 changed |= BSS_CHANGED_FTM_RESPONDER; 960 } 961 962 rcu_assign_pointer(sdata->u.ap.beacon, new); 963 964 if (old) 965 kfree_rcu(old, rcu_head); 966 967 return changed; 968 } 969 970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 971 struct cfg80211_ap_settings *params) 972 { 973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 974 struct ieee80211_local *local = sdata->local; 975 struct beacon_data *old; 976 struct ieee80211_sub_if_data *vlan; 977 u32 changed = BSS_CHANGED_BEACON_INT | 978 BSS_CHANGED_BEACON_ENABLED | 979 BSS_CHANGED_BEACON | 980 BSS_CHANGED_SSID | 981 BSS_CHANGED_P2P_PS | 982 BSS_CHANGED_TXPOWER | 983 BSS_CHANGED_TWT; 984 int err; 985 int prev_beacon_int; 986 987 old = sdata_dereference(sdata->u.ap.beacon, sdata); 988 if (old) 989 return -EALREADY; 990 991 switch (params->smps_mode) { 992 case NL80211_SMPS_OFF: 993 sdata->smps_mode = IEEE80211_SMPS_OFF; 994 break; 995 case NL80211_SMPS_STATIC: 996 sdata->smps_mode = IEEE80211_SMPS_STATIC; 997 break; 998 case NL80211_SMPS_DYNAMIC: 999 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 1000 break; 1001 default: 1002 return -EINVAL; 1003 } 1004 sdata->u.ap.req_smps = sdata->smps_mode; 1005 1006 sdata->needed_rx_chains = sdata->local->rx_chains; 1007 1008 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1009 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1010 1011 if (params->he_cap) 1012 sdata->vif.bss_conf.he_support = true; 1013 1014 mutex_lock(&local->mtx); 1015 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1016 IEEE80211_CHANCTX_SHARED); 1017 if (!err) 1018 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1019 mutex_unlock(&local->mtx); 1020 if (err) { 1021 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1022 return err; 1023 } 1024 1025 /* 1026 * Apply control port protocol, this allows us to 1027 * not encrypt dynamic WEP control frames. 1028 */ 1029 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1030 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1031 sdata->control_port_over_nl80211 = 1032 params->crypto.control_port_over_nl80211; 1033 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1034 ¶ms->crypto, 1035 sdata->vif.type); 1036 1037 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1038 vlan->control_port_protocol = 1039 params->crypto.control_port_ethertype; 1040 vlan->control_port_no_encrypt = 1041 params->crypto.control_port_no_encrypt; 1042 vlan->control_port_over_nl80211 = 1043 params->crypto.control_port_over_nl80211; 1044 vlan->encrypt_headroom = 1045 ieee80211_cs_headroom(sdata->local, 1046 ¶ms->crypto, 1047 vlan->vif.type); 1048 } 1049 1050 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1051 sdata->vif.bss_conf.enable_beacon = true; 1052 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1053 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1054 1055 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1056 if (params->ssid_len) 1057 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1058 params->ssid_len); 1059 sdata->vif.bss_conf.hidden_ssid = 1060 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1061 1062 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1063 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1064 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1065 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1066 if (params->p2p_opp_ps) 1067 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1068 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1069 1070 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1071 if (err < 0) { 1072 ieee80211_vif_release_channel(sdata); 1073 return err; 1074 } 1075 changed |= err; 1076 1077 err = drv_start_ap(sdata->local, sdata); 1078 if (err) { 1079 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1080 1081 if (old) 1082 kfree_rcu(old, rcu_head); 1083 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1084 ieee80211_vif_release_channel(sdata); 1085 return err; 1086 } 1087 1088 ieee80211_recalc_dtim(local, sdata); 1089 ieee80211_bss_info_change_notify(sdata, changed); 1090 1091 netif_carrier_on(dev); 1092 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1093 netif_carrier_on(vlan->dev); 1094 1095 return 0; 1096 } 1097 1098 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1099 struct cfg80211_beacon_data *params) 1100 { 1101 struct ieee80211_sub_if_data *sdata; 1102 struct beacon_data *old; 1103 int err; 1104 1105 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1106 sdata_assert_lock(sdata); 1107 1108 /* don't allow changing the beacon while CSA is in place - offset 1109 * of channel switch counter may change 1110 */ 1111 if (sdata->vif.csa_active) 1112 return -EBUSY; 1113 1114 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1115 if (!old) 1116 return -ENOENT; 1117 1118 err = ieee80211_assign_beacon(sdata, params, NULL); 1119 if (err < 0) 1120 return err; 1121 ieee80211_bss_info_change_notify(sdata, err); 1122 return 0; 1123 } 1124 1125 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1126 { 1127 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1128 struct ieee80211_sub_if_data *vlan; 1129 struct ieee80211_local *local = sdata->local; 1130 struct beacon_data *old_beacon; 1131 struct probe_resp *old_probe_resp; 1132 struct cfg80211_chan_def chandef; 1133 1134 sdata_assert_lock(sdata); 1135 1136 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1137 if (!old_beacon) 1138 return -ENOENT; 1139 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1140 1141 /* abort any running channel switch */ 1142 mutex_lock(&local->mtx); 1143 sdata->vif.csa_active = false; 1144 if (sdata->csa_block_tx) { 1145 ieee80211_wake_vif_queues(local, sdata, 1146 IEEE80211_QUEUE_STOP_REASON_CSA); 1147 sdata->csa_block_tx = false; 1148 } 1149 1150 mutex_unlock(&local->mtx); 1151 1152 kfree(sdata->u.ap.next_beacon); 1153 sdata->u.ap.next_beacon = NULL; 1154 1155 /* turn off carrier for this interface and dependent VLANs */ 1156 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1157 netif_carrier_off(vlan->dev); 1158 netif_carrier_off(dev); 1159 1160 /* remove beacon and probe response */ 1161 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1162 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1163 kfree_rcu(old_beacon, rcu_head); 1164 if (old_probe_resp) 1165 kfree_rcu(old_probe_resp, rcu_head); 1166 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1167 1168 kfree(sdata->vif.bss_conf.ftmr_params); 1169 sdata->vif.bss_conf.ftmr_params = NULL; 1170 1171 __sta_info_flush(sdata, true); 1172 ieee80211_free_keys(sdata, true); 1173 1174 sdata->vif.bss_conf.enable_beacon = false; 1175 sdata->vif.bss_conf.ssid_len = 0; 1176 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1177 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1178 1179 if (sdata->wdev.cac_started) { 1180 chandef = sdata->vif.bss_conf.chandef; 1181 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1182 cfg80211_cac_event(sdata->dev, &chandef, 1183 NL80211_RADAR_CAC_ABORTED, 1184 GFP_KERNEL); 1185 } 1186 1187 drv_stop_ap(sdata->local, sdata); 1188 1189 /* free all potentially still buffered bcast frames */ 1190 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1191 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1192 1193 mutex_lock(&local->mtx); 1194 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1195 ieee80211_vif_release_channel(sdata); 1196 mutex_unlock(&local->mtx); 1197 1198 return 0; 1199 } 1200 1201 static int sta_apply_auth_flags(struct ieee80211_local *local, 1202 struct sta_info *sta, 1203 u32 mask, u32 set) 1204 { 1205 int ret; 1206 1207 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1208 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1209 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1210 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1211 if (ret) 1212 return ret; 1213 } 1214 1215 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1216 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1217 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1218 /* 1219 * When peer becomes associated, init rate control as 1220 * well. Some drivers require rate control initialized 1221 * before drv_sta_state() is called. 1222 */ 1223 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1224 rate_control_rate_init(sta); 1225 1226 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1227 if (ret) 1228 return ret; 1229 } 1230 1231 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1232 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1233 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1234 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1235 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1236 else 1237 ret = 0; 1238 if (ret) 1239 return ret; 1240 } 1241 1242 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1243 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1244 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1245 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1246 if (ret) 1247 return ret; 1248 } 1249 1250 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1251 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1252 test_sta_flag(sta, WLAN_STA_AUTH)) { 1253 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1254 if (ret) 1255 return ret; 1256 } 1257 1258 return 0; 1259 } 1260 1261 static void sta_apply_mesh_params(struct ieee80211_local *local, 1262 struct sta_info *sta, 1263 struct station_parameters *params) 1264 { 1265 #ifdef CONFIG_MAC80211_MESH 1266 struct ieee80211_sub_if_data *sdata = sta->sdata; 1267 u32 changed = 0; 1268 1269 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1270 switch (params->plink_state) { 1271 case NL80211_PLINK_ESTAB: 1272 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1273 changed = mesh_plink_inc_estab_count(sdata); 1274 sta->mesh->plink_state = params->plink_state; 1275 sta->mesh->aid = params->peer_aid; 1276 1277 ieee80211_mps_sta_status_update(sta); 1278 changed |= ieee80211_mps_set_sta_local_pm(sta, 1279 sdata->u.mesh.mshcfg.power_mode); 1280 1281 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1282 /* init at low value */ 1283 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1284 1285 break; 1286 case NL80211_PLINK_LISTEN: 1287 case NL80211_PLINK_BLOCKED: 1288 case NL80211_PLINK_OPN_SNT: 1289 case NL80211_PLINK_OPN_RCVD: 1290 case NL80211_PLINK_CNF_RCVD: 1291 case NL80211_PLINK_HOLDING: 1292 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1293 changed = mesh_plink_dec_estab_count(sdata); 1294 sta->mesh->plink_state = params->plink_state; 1295 1296 ieee80211_mps_sta_status_update(sta); 1297 changed |= ieee80211_mps_set_sta_local_pm(sta, 1298 NL80211_MESH_POWER_UNKNOWN); 1299 break; 1300 default: 1301 /* nothing */ 1302 break; 1303 } 1304 } 1305 1306 switch (params->plink_action) { 1307 case NL80211_PLINK_ACTION_NO_ACTION: 1308 /* nothing */ 1309 break; 1310 case NL80211_PLINK_ACTION_OPEN: 1311 changed |= mesh_plink_open(sta); 1312 break; 1313 case NL80211_PLINK_ACTION_BLOCK: 1314 changed |= mesh_plink_block(sta); 1315 break; 1316 } 1317 1318 if (params->local_pm) 1319 changed |= ieee80211_mps_set_sta_local_pm(sta, 1320 params->local_pm); 1321 1322 ieee80211_mbss_info_change_notify(sdata, changed); 1323 #endif 1324 } 1325 1326 static int sta_apply_parameters(struct ieee80211_local *local, 1327 struct sta_info *sta, 1328 struct station_parameters *params) 1329 { 1330 int ret = 0; 1331 struct ieee80211_supported_band *sband; 1332 struct ieee80211_sub_if_data *sdata = sta->sdata; 1333 u32 mask, set; 1334 1335 sband = ieee80211_get_sband(sdata); 1336 if (!sband) 1337 return -EINVAL; 1338 1339 mask = params->sta_flags_mask; 1340 set = params->sta_flags_set; 1341 1342 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1343 /* 1344 * In mesh mode, ASSOCIATED isn't part of the nl80211 1345 * API but must follow AUTHENTICATED for driver state. 1346 */ 1347 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1348 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1349 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1350 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1351 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1352 /* 1353 * TDLS -- everything follows authorized, but 1354 * only becoming authorized is possible, not 1355 * going back 1356 */ 1357 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1358 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1359 BIT(NL80211_STA_FLAG_ASSOCIATED); 1360 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1361 BIT(NL80211_STA_FLAG_ASSOCIATED); 1362 } 1363 } 1364 1365 if (mask & BIT(NL80211_STA_FLAG_WME) && 1366 local->hw.queues >= IEEE80211_NUM_ACS) 1367 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1368 1369 /* auth flags will be set later for TDLS, 1370 * and for unassociated stations that move to assocaited */ 1371 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1372 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1373 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1374 ret = sta_apply_auth_flags(local, sta, mask, set); 1375 if (ret) 1376 return ret; 1377 } 1378 1379 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1380 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1381 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1382 else 1383 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1384 } 1385 1386 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1387 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1388 if (set & BIT(NL80211_STA_FLAG_MFP)) 1389 set_sta_flag(sta, WLAN_STA_MFP); 1390 else 1391 clear_sta_flag(sta, WLAN_STA_MFP); 1392 } 1393 1394 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1395 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1396 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1397 else 1398 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1399 } 1400 1401 /* mark TDLS channel switch support, if the AP allows it */ 1402 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1403 !sdata->u.mgd.tdls_chan_switch_prohibited && 1404 params->ext_capab_len >= 4 && 1405 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1406 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1407 1408 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1409 !sdata->u.mgd.tdls_wider_bw_prohibited && 1410 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1411 params->ext_capab_len >= 8 && 1412 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1413 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1414 1415 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1416 sta->sta.uapsd_queues = params->uapsd_queues; 1417 sta->sta.max_sp = params->max_sp; 1418 } 1419 1420 /* The sender might not have sent the last bit, consider it to be 0 */ 1421 if (params->ext_capab_len >= 8) { 1422 u8 val = (params->ext_capab[7] & 1423 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1424 1425 /* we did get all the bits, take the MSB as well */ 1426 if (params->ext_capab_len >= 9) { 1427 u8 val_msb = params->ext_capab[8] & 1428 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1429 val_msb <<= 1; 1430 val |= val_msb; 1431 } 1432 1433 switch (val) { 1434 case 1: 1435 sta->sta.max_amsdu_subframes = 32; 1436 break; 1437 case 2: 1438 sta->sta.max_amsdu_subframes = 16; 1439 break; 1440 case 3: 1441 sta->sta.max_amsdu_subframes = 8; 1442 break; 1443 default: 1444 sta->sta.max_amsdu_subframes = 0; 1445 } 1446 } 1447 1448 /* 1449 * cfg80211 validates this (1-2007) and allows setting the AID 1450 * only when creating a new station entry 1451 */ 1452 if (params->aid) 1453 sta->sta.aid = params->aid; 1454 1455 /* 1456 * Some of the following updates would be racy if called on an 1457 * existing station, via ieee80211_change_station(). However, 1458 * all such changes are rejected by cfg80211 except for updates 1459 * changing the supported rates on an existing but not yet used 1460 * TDLS peer. 1461 */ 1462 1463 if (params->listen_interval >= 0) 1464 sta->listen_interval = params->listen_interval; 1465 1466 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1467 sta->sta.txpwr.type = params->txpwr.type; 1468 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1469 sta->sta.txpwr.power = params->txpwr.power; 1470 ret = drv_sta_set_txpwr(local, sdata, sta); 1471 if (ret) 1472 return ret; 1473 } 1474 1475 if (params->supported_rates && params->supported_rates_len) { 1476 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1477 sband, params->supported_rates, 1478 params->supported_rates_len, 1479 &sta->sta.supp_rates[sband->band]); 1480 } 1481 1482 if (params->ht_capa) 1483 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1484 params->ht_capa, sta); 1485 1486 /* VHT can override some HT caps such as the A-MSDU max length */ 1487 if (params->vht_capa) 1488 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1489 params->vht_capa, sta); 1490 1491 if (params->he_capa) 1492 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1493 (void *)params->he_capa, 1494 params->he_capa_len, sta); 1495 1496 if (params->opmode_notif_used) { 1497 /* returned value is only needed for rc update, but the 1498 * rc isn't initialized here yet, so ignore it 1499 */ 1500 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1501 sband->band); 1502 } 1503 1504 if (params->support_p2p_ps >= 0) 1505 sta->sta.support_p2p_ps = params->support_p2p_ps; 1506 1507 if (ieee80211_vif_is_mesh(&sdata->vif)) 1508 sta_apply_mesh_params(local, sta, params); 1509 1510 if (params->airtime_weight) 1511 sta->airtime_weight = params->airtime_weight; 1512 1513 /* set the STA state after all sta info from usermode has been set */ 1514 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1515 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1516 ret = sta_apply_auth_flags(local, sta, mask, set); 1517 if (ret) 1518 return ret; 1519 } 1520 1521 return 0; 1522 } 1523 1524 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1525 const u8 *mac, 1526 struct station_parameters *params) 1527 { 1528 struct ieee80211_local *local = wiphy_priv(wiphy); 1529 struct sta_info *sta; 1530 struct ieee80211_sub_if_data *sdata; 1531 int err; 1532 1533 if (params->vlan) { 1534 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1535 1536 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1537 sdata->vif.type != NL80211_IFTYPE_AP) 1538 return -EINVAL; 1539 } else 1540 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1541 1542 if (ether_addr_equal(mac, sdata->vif.addr)) 1543 return -EINVAL; 1544 1545 if (is_multicast_ether_addr(mac)) 1546 return -EINVAL; 1547 1548 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1549 sdata->vif.type == NL80211_IFTYPE_STATION && 1550 !sdata->u.mgd.associated) 1551 return -EINVAL; 1552 1553 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1554 if (!sta) 1555 return -ENOMEM; 1556 1557 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1558 sta->sta.tdls = true; 1559 1560 err = sta_apply_parameters(local, sta, params); 1561 if (err) { 1562 sta_info_free(local, sta); 1563 return err; 1564 } 1565 1566 /* 1567 * for TDLS and for unassociated station, rate control should be 1568 * initialized only when rates are known and station is marked 1569 * authorized/associated 1570 */ 1571 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1572 test_sta_flag(sta, WLAN_STA_ASSOC)) 1573 rate_control_rate_init(sta); 1574 1575 err = sta_info_insert_rcu(sta); 1576 if (err) { 1577 rcu_read_unlock(); 1578 return err; 1579 } 1580 1581 rcu_read_unlock(); 1582 1583 return 0; 1584 } 1585 1586 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1587 struct station_del_parameters *params) 1588 { 1589 struct ieee80211_sub_if_data *sdata; 1590 1591 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1592 1593 if (params->mac) 1594 return sta_info_destroy_addr_bss(sdata, params->mac); 1595 1596 sta_info_flush(sdata); 1597 return 0; 1598 } 1599 1600 static int ieee80211_change_station(struct wiphy *wiphy, 1601 struct net_device *dev, const u8 *mac, 1602 struct station_parameters *params) 1603 { 1604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1605 struct ieee80211_local *local = wiphy_priv(wiphy); 1606 struct sta_info *sta; 1607 struct ieee80211_sub_if_data *vlansdata; 1608 enum cfg80211_station_type statype; 1609 int err; 1610 1611 mutex_lock(&local->sta_mtx); 1612 1613 sta = sta_info_get_bss(sdata, mac); 1614 if (!sta) { 1615 err = -ENOENT; 1616 goto out_err; 1617 } 1618 1619 switch (sdata->vif.type) { 1620 case NL80211_IFTYPE_MESH_POINT: 1621 if (sdata->u.mesh.user_mpm) 1622 statype = CFG80211_STA_MESH_PEER_USER; 1623 else 1624 statype = CFG80211_STA_MESH_PEER_KERNEL; 1625 break; 1626 case NL80211_IFTYPE_ADHOC: 1627 statype = CFG80211_STA_IBSS; 1628 break; 1629 case NL80211_IFTYPE_STATION: 1630 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1631 statype = CFG80211_STA_AP_STA; 1632 break; 1633 } 1634 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1635 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1636 else 1637 statype = CFG80211_STA_TDLS_PEER_SETUP; 1638 break; 1639 case NL80211_IFTYPE_AP: 1640 case NL80211_IFTYPE_AP_VLAN: 1641 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1642 statype = CFG80211_STA_AP_CLIENT; 1643 else 1644 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1645 break; 1646 default: 1647 err = -EOPNOTSUPP; 1648 goto out_err; 1649 } 1650 1651 err = cfg80211_check_station_change(wiphy, params, statype); 1652 if (err) 1653 goto out_err; 1654 1655 if (params->vlan && params->vlan != sta->sdata->dev) { 1656 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1657 1658 if (params->vlan->ieee80211_ptr->use_4addr) { 1659 if (vlansdata->u.vlan.sta) { 1660 err = -EBUSY; 1661 goto out_err; 1662 } 1663 1664 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1665 __ieee80211_check_fast_rx_iface(vlansdata); 1666 } 1667 1668 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1669 sta->sdata->u.vlan.sta) 1670 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1671 1672 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1673 ieee80211_vif_dec_num_mcast(sta->sdata); 1674 1675 sta->sdata = vlansdata; 1676 ieee80211_check_fast_xmit(sta); 1677 1678 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1679 ieee80211_vif_inc_num_mcast(sta->sdata); 1680 cfg80211_send_layer2_update(sta->sdata->dev, 1681 sta->sta.addr); 1682 } 1683 } 1684 1685 err = sta_apply_parameters(local, sta, params); 1686 if (err) 1687 goto out_err; 1688 1689 mutex_unlock(&local->sta_mtx); 1690 1691 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1692 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1693 sta->known_smps_mode != sta->sdata->bss->req_smps && 1694 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1695 sta_info_tx_streams(sta) != 1) { 1696 ht_dbg(sta->sdata, 1697 "%pM just authorized and MIMO capable - update SMPS\n", 1698 sta->sta.addr); 1699 ieee80211_send_smps_action(sta->sdata, 1700 sta->sdata->bss->req_smps, 1701 sta->sta.addr, 1702 sta->sdata->vif.bss_conf.bssid); 1703 } 1704 1705 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1706 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1707 ieee80211_recalc_ps(local); 1708 ieee80211_recalc_ps_vif(sdata); 1709 } 1710 1711 return 0; 1712 out_err: 1713 mutex_unlock(&local->sta_mtx); 1714 return err; 1715 } 1716 1717 #ifdef CONFIG_MAC80211_MESH 1718 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1719 const u8 *dst, const u8 *next_hop) 1720 { 1721 struct ieee80211_sub_if_data *sdata; 1722 struct mesh_path *mpath; 1723 struct sta_info *sta; 1724 1725 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1726 1727 rcu_read_lock(); 1728 sta = sta_info_get(sdata, next_hop); 1729 if (!sta) { 1730 rcu_read_unlock(); 1731 return -ENOENT; 1732 } 1733 1734 mpath = mesh_path_add(sdata, dst); 1735 if (IS_ERR(mpath)) { 1736 rcu_read_unlock(); 1737 return PTR_ERR(mpath); 1738 } 1739 1740 mesh_path_fix_nexthop(mpath, sta); 1741 1742 rcu_read_unlock(); 1743 return 0; 1744 } 1745 1746 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1747 const u8 *dst) 1748 { 1749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1750 1751 if (dst) 1752 return mesh_path_del(sdata, dst); 1753 1754 mesh_path_flush_by_iface(sdata); 1755 return 0; 1756 } 1757 1758 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1759 const u8 *dst, const u8 *next_hop) 1760 { 1761 struct ieee80211_sub_if_data *sdata; 1762 struct mesh_path *mpath; 1763 struct sta_info *sta; 1764 1765 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1766 1767 rcu_read_lock(); 1768 1769 sta = sta_info_get(sdata, next_hop); 1770 if (!sta) { 1771 rcu_read_unlock(); 1772 return -ENOENT; 1773 } 1774 1775 mpath = mesh_path_lookup(sdata, dst); 1776 if (!mpath) { 1777 rcu_read_unlock(); 1778 return -ENOENT; 1779 } 1780 1781 mesh_path_fix_nexthop(mpath, sta); 1782 1783 rcu_read_unlock(); 1784 return 0; 1785 } 1786 1787 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1788 struct mpath_info *pinfo) 1789 { 1790 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1791 1792 if (next_hop_sta) 1793 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1794 else 1795 eth_zero_addr(next_hop); 1796 1797 memset(pinfo, 0, sizeof(*pinfo)); 1798 1799 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1800 1801 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1802 MPATH_INFO_SN | 1803 MPATH_INFO_METRIC | 1804 MPATH_INFO_EXPTIME | 1805 MPATH_INFO_DISCOVERY_TIMEOUT | 1806 MPATH_INFO_DISCOVERY_RETRIES | 1807 MPATH_INFO_FLAGS | 1808 MPATH_INFO_HOP_COUNT | 1809 MPATH_INFO_PATH_CHANGE; 1810 1811 pinfo->frame_qlen = mpath->frame_queue.qlen; 1812 pinfo->sn = mpath->sn; 1813 pinfo->metric = mpath->metric; 1814 if (time_before(jiffies, mpath->exp_time)) 1815 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1816 pinfo->discovery_timeout = 1817 jiffies_to_msecs(mpath->discovery_timeout); 1818 pinfo->discovery_retries = mpath->discovery_retries; 1819 if (mpath->flags & MESH_PATH_ACTIVE) 1820 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1821 if (mpath->flags & MESH_PATH_RESOLVING) 1822 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1823 if (mpath->flags & MESH_PATH_SN_VALID) 1824 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1825 if (mpath->flags & MESH_PATH_FIXED) 1826 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1827 if (mpath->flags & MESH_PATH_RESOLVED) 1828 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1829 pinfo->hop_count = mpath->hop_count; 1830 pinfo->path_change_count = mpath->path_change_count; 1831 } 1832 1833 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1834 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1835 1836 { 1837 struct ieee80211_sub_if_data *sdata; 1838 struct mesh_path *mpath; 1839 1840 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1841 1842 rcu_read_lock(); 1843 mpath = mesh_path_lookup(sdata, dst); 1844 if (!mpath) { 1845 rcu_read_unlock(); 1846 return -ENOENT; 1847 } 1848 memcpy(dst, mpath->dst, ETH_ALEN); 1849 mpath_set_pinfo(mpath, next_hop, pinfo); 1850 rcu_read_unlock(); 1851 return 0; 1852 } 1853 1854 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1855 int idx, u8 *dst, u8 *next_hop, 1856 struct mpath_info *pinfo) 1857 { 1858 struct ieee80211_sub_if_data *sdata; 1859 struct mesh_path *mpath; 1860 1861 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1862 1863 rcu_read_lock(); 1864 mpath = mesh_path_lookup_by_idx(sdata, idx); 1865 if (!mpath) { 1866 rcu_read_unlock(); 1867 return -ENOENT; 1868 } 1869 memcpy(dst, mpath->dst, ETH_ALEN); 1870 mpath_set_pinfo(mpath, next_hop, pinfo); 1871 rcu_read_unlock(); 1872 return 0; 1873 } 1874 1875 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1876 struct mpath_info *pinfo) 1877 { 1878 memset(pinfo, 0, sizeof(*pinfo)); 1879 memcpy(mpp, mpath->mpp, ETH_ALEN); 1880 1881 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1882 } 1883 1884 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1885 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1886 1887 { 1888 struct ieee80211_sub_if_data *sdata; 1889 struct mesh_path *mpath; 1890 1891 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1892 1893 rcu_read_lock(); 1894 mpath = mpp_path_lookup(sdata, dst); 1895 if (!mpath) { 1896 rcu_read_unlock(); 1897 return -ENOENT; 1898 } 1899 memcpy(dst, mpath->dst, ETH_ALEN); 1900 mpp_set_pinfo(mpath, mpp, pinfo); 1901 rcu_read_unlock(); 1902 return 0; 1903 } 1904 1905 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1906 int idx, u8 *dst, u8 *mpp, 1907 struct mpath_info *pinfo) 1908 { 1909 struct ieee80211_sub_if_data *sdata; 1910 struct mesh_path *mpath; 1911 1912 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1913 1914 rcu_read_lock(); 1915 mpath = mpp_path_lookup_by_idx(sdata, idx); 1916 if (!mpath) { 1917 rcu_read_unlock(); 1918 return -ENOENT; 1919 } 1920 memcpy(dst, mpath->dst, ETH_ALEN); 1921 mpp_set_pinfo(mpath, mpp, pinfo); 1922 rcu_read_unlock(); 1923 return 0; 1924 } 1925 1926 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1927 struct net_device *dev, 1928 struct mesh_config *conf) 1929 { 1930 struct ieee80211_sub_if_data *sdata; 1931 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1932 1933 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1934 return 0; 1935 } 1936 1937 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1938 { 1939 return (mask >> (parm-1)) & 0x1; 1940 } 1941 1942 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1943 const struct mesh_setup *setup) 1944 { 1945 u8 *new_ie; 1946 const u8 *old_ie; 1947 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1948 struct ieee80211_sub_if_data, u.mesh); 1949 1950 /* allocate information elements */ 1951 new_ie = NULL; 1952 old_ie = ifmsh->ie; 1953 1954 if (setup->ie_len) { 1955 new_ie = kmemdup(setup->ie, setup->ie_len, 1956 GFP_KERNEL); 1957 if (!new_ie) 1958 return -ENOMEM; 1959 } 1960 ifmsh->ie_len = setup->ie_len; 1961 ifmsh->ie = new_ie; 1962 kfree(old_ie); 1963 1964 /* now copy the rest of the setup parameters */ 1965 ifmsh->mesh_id_len = setup->mesh_id_len; 1966 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1967 ifmsh->mesh_sp_id = setup->sync_method; 1968 ifmsh->mesh_pp_id = setup->path_sel_proto; 1969 ifmsh->mesh_pm_id = setup->path_metric; 1970 ifmsh->user_mpm = setup->user_mpm; 1971 ifmsh->mesh_auth_id = setup->auth_id; 1972 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1973 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1974 if (setup->is_authenticated) 1975 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1976 if (setup->is_secure) 1977 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1978 1979 /* mcast rate setting in Mesh Node */ 1980 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1981 sizeof(setup->mcast_rate)); 1982 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1983 1984 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1985 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1986 1987 return 0; 1988 } 1989 1990 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1991 struct net_device *dev, u32 mask, 1992 const struct mesh_config *nconf) 1993 { 1994 struct mesh_config *conf; 1995 struct ieee80211_sub_if_data *sdata; 1996 struct ieee80211_if_mesh *ifmsh; 1997 1998 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1999 ifmsh = &sdata->u.mesh; 2000 2001 /* Set the config options which we are interested in setting */ 2002 conf = &(sdata->u.mesh.mshcfg); 2003 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2004 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2005 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2006 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2007 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2008 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2009 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2010 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2011 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2012 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2014 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2015 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2016 conf->element_ttl = nconf->element_ttl; 2017 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2018 if (ifmsh->user_mpm) 2019 return -EBUSY; 2020 conf->auto_open_plinks = nconf->auto_open_plinks; 2021 } 2022 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2023 conf->dot11MeshNbrOffsetMaxNeighbor = 2024 nconf->dot11MeshNbrOffsetMaxNeighbor; 2025 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2026 conf->dot11MeshHWMPmaxPREQretries = 2027 nconf->dot11MeshHWMPmaxPREQretries; 2028 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2029 conf->path_refresh_time = nconf->path_refresh_time; 2030 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2031 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2032 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2033 conf->dot11MeshHWMPactivePathTimeout = 2034 nconf->dot11MeshHWMPactivePathTimeout; 2035 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2036 conf->dot11MeshHWMPpreqMinInterval = 2037 nconf->dot11MeshHWMPpreqMinInterval; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2039 conf->dot11MeshHWMPperrMinInterval = 2040 nconf->dot11MeshHWMPperrMinInterval; 2041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2042 mask)) 2043 conf->dot11MeshHWMPnetDiameterTraversalTime = 2044 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2045 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2046 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2047 ieee80211_mesh_root_setup(ifmsh); 2048 } 2049 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2050 /* our current gate announcement implementation rides on root 2051 * announcements, so require this ifmsh to also be a root node 2052 * */ 2053 if (nconf->dot11MeshGateAnnouncementProtocol && 2054 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2055 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2056 ieee80211_mesh_root_setup(ifmsh); 2057 } 2058 conf->dot11MeshGateAnnouncementProtocol = 2059 nconf->dot11MeshGateAnnouncementProtocol; 2060 } 2061 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2062 conf->dot11MeshHWMPRannInterval = 2063 nconf->dot11MeshHWMPRannInterval; 2064 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2065 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2066 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2067 /* our RSSI threshold implementation is supported only for 2068 * devices that report signal in dBm. 2069 */ 2070 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2071 return -ENOTSUPP; 2072 conf->rssi_threshold = nconf->rssi_threshold; 2073 } 2074 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2075 conf->ht_opmode = nconf->ht_opmode; 2076 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2077 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2078 } 2079 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2080 conf->dot11MeshHWMPactivePathToRootTimeout = 2081 nconf->dot11MeshHWMPactivePathToRootTimeout; 2082 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2083 conf->dot11MeshHWMProotInterval = 2084 nconf->dot11MeshHWMProotInterval; 2085 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2086 conf->dot11MeshHWMPconfirmationInterval = 2087 nconf->dot11MeshHWMPconfirmationInterval; 2088 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2089 conf->power_mode = nconf->power_mode; 2090 ieee80211_mps_local_status_update(sdata); 2091 } 2092 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2093 conf->dot11MeshAwakeWindowDuration = 2094 nconf->dot11MeshAwakeWindowDuration; 2095 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2096 conf->plink_timeout = nconf->plink_timeout; 2097 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2098 conf->dot11MeshConnectedToMeshGate = 2099 nconf->dot11MeshConnectedToMeshGate; 2100 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2101 return 0; 2102 } 2103 2104 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2105 const struct mesh_config *conf, 2106 const struct mesh_setup *setup) 2107 { 2108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2109 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2110 int err; 2111 2112 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2113 err = copy_mesh_setup(ifmsh, setup); 2114 if (err) 2115 return err; 2116 2117 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2118 2119 /* can mesh use other SMPS modes? */ 2120 sdata->smps_mode = IEEE80211_SMPS_OFF; 2121 sdata->needed_rx_chains = sdata->local->rx_chains; 2122 2123 mutex_lock(&sdata->local->mtx); 2124 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2125 IEEE80211_CHANCTX_SHARED); 2126 mutex_unlock(&sdata->local->mtx); 2127 if (err) 2128 return err; 2129 2130 return ieee80211_start_mesh(sdata); 2131 } 2132 2133 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2134 { 2135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2136 2137 ieee80211_stop_mesh(sdata); 2138 mutex_lock(&sdata->local->mtx); 2139 ieee80211_vif_release_channel(sdata); 2140 mutex_unlock(&sdata->local->mtx); 2141 2142 return 0; 2143 } 2144 #endif 2145 2146 static int ieee80211_change_bss(struct wiphy *wiphy, 2147 struct net_device *dev, 2148 struct bss_parameters *params) 2149 { 2150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2151 struct ieee80211_supported_band *sband; 2152 u32 changed = 0; 2153 2154 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2155 return -ENOENT; 2156 2157 sband = ieee80211_get_sband(sdata); 2158 if (!sband) 2159 return -EINVAL; 2160 2161 if (params->use_cts_prot >= 0) { 2162 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2163 changed |= BSS_CHANGED_ERP_CTS_PROT; 2164 } 2165 if (params->use_short_preamble >= 0) { 2166 sdata->vif.bss_conf.use_short_preamble = 2167 params->use_short_preamble; 2168 changed |= BSS_CHANGED_ERP_PREAMBLE; 2169 } 2170 2171 if (!sdata->vif.bss_conf.use_short_slot && 2172 sband->band == NL80211_BAND_5GHZ) { 2173 sdata->vif.bss_conf.use_short_slot = true; 2174 changed |= BSS_CHANGED_ERP_SLOT; 2175 } 2176 2177 if (params->use_short_slot_time >= 0) { 2178 sdata->vif.bss_conf.use_short_slot = 2179 params->use_short_slot_time; 2180 changed |= BSS_CHANGED_ERP_SLOT; 2181 } 2182 2183 if (params->basic_rates) { 2184 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2185 wiphy->bands[sband->band], 2186 params->basic_rates, 2187 params->basic_rates_len, 2188 &sdata->vif.bss_conf.basic_rates); 2189 changed |= BSS_CHANGED_BASIC_RATES; 2190 ieee80211_check_rate_mask(sdata); 2191 } 2192 2193 if (params->ap_isolate >= 0) { 2194 if (params->ap_isolate) 2195 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2196 else 2197 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2198 ieee80211_check_fast_rx_iface(sdata); 2199 } 2200 2201 if (params->ht_opmode >= 0) { 2202 sdata->vif.bss_conf.ht_operation_mode = 2203 (u16) params->ht_opmode; 2204 changed |= BSS_CHANGED_HT; 2205 } 2206 2207 if (params->p2p_ctwindow >= 0) { 2208 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2209 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2210 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2211 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2212 changed |= BSS_CHANGED_P2P_PS; 2213 } 2214 2215 if (params->p2p_opp_ps > 0) { 2216 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2217 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2218 changed |= BSS_CHANGED_P2P_PS; 2219 } else if (params->p2p_opp_ps == 0) { 2220 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2221 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2222 changed |= BSS_CHANGED_P2P_PS; 2223 } 2224 2225 ieee80211_bss_info_change_notify(sdata, changed); 2226 2227 return 0; 2228 } 2229 2230 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2231 struct net_device *dev, 2232 struct ieee80211_txq_params *params) 2233 { 2234 struct ieee80211_local *local = wiphy_priv(wiphy); 2235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2236 struct ieee80211_tx_queue_params p; 2237 2238 if (!local->ops->conf_tx) 2239 return -EOPNOTSUPP; 2240 2241 if (local->hw.queues < IEEE80211_NUM_ACS) 2242 return -EOPNOTSUPP; 2243 2244 memset(&p, 0, sizeof(p)); 2245 p.aifs = params->aifs; 2246 p.cw_max = params->cwmax; 2247 p.cw_min = params->cwmin; 2248 p.txop = params->txop; 2249 2250 /* 2251 * Setting tx queue params disables u-apsd because it's only 2252 * called in master mode. 2253 */ 2254 p.uapsd = false; 2255 2256 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2257 2258 sdata->tx_conf[params->ac] = p; 2259 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2260 wiphy_debug(local->hw.wiphy, 2261 "failed to set TX queue parameters for AC %d\n", 2262 params->ac); 2263 return -EINVAL; 2264 } 2265 2266 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2267 2268 return 0; 2269 } 2270 2271 #ifdef CONFIG_PM 2272 static int ieee80211_suspend(struct wiphy *wiphy, 2273 struct cfg80211_wowlan *wowlan) 2274 { 2275 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2276 } 2277 2278 static int ieee80211_resume(struct wiphy *wiphy) 2279 { 2280 return __ieee80211_resume(wiphy_priv(wiphy)); 2281 } 2282 #else 2283 #define ieee80211_suspend NULL 2284 #define ieee80211_resume NULL 2285 #endif 2286 2287 static int ieee80211_scan(struct wiphy *wiphy, 2288 struct cfg80211_scan_request *req) 2289 { 2290 struct ieee80211_sub_if_data *sdata; 2291 2292 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2293 2294 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2295 case NL80211_IFTYPE_STATION: 2296 case NL80211_IFTYPE_ADHOC: 2297 case NL80211_IFTYPE_MESH_POINT: 2298 case NL80211_IFTYPE_P2P_CLIENT: 2299 case NL80211_IFTYPE_P2P_DEVICE: 2300 break; 2301 case NL80211_IFTYPE_P2P_GO: 2302 if (sdata->local->ops->hw_scan) 2303 break; 2304 /* 2305 * FIXME: implement NoA while scanning in software, 2306 * for now fall through to allow scanning only when 2307 * beaconing hasn't been configured yet 2308 */ 2309 /* fall through */ 2310 case NL80211_IFTYPE_AP: 2311 /* 2312 * If the scan has been forced (and the driver supports 2313 * forcing), don't care about being beaconing already. 2314 * This will create problems to the attached stations (e.g. all 2315 * the frames sent while scanning on other channel will be 2316 * lost) 2317 */ 2318 if (sdata->u.ap.beacon && 2319 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2320 !(req->flags & NL80211_SCAN_FLAG_AP))) 2321 return -EOPNOTSUPP; 2322 break; 2323 case NL80211_IFTYPE_NAN: 2324 default: 2325 return -EOPNOTSUPP; 2326 } 2327 2328 return ieee80211_request_scan(sdata, req); 2329 } 2330 2331 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2332 { 2333 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2334 } 2335 2336 static int 2337 ieee80211_sched_scan_start(struct wiphy *wiphy, 2338 struct net_device *dev, 2339 struct cfg80211_sched_scan_request *req) 2340 { 2341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2342 2343 if (!sdata->local->ops->sched_scan_start) 2344 return -EOPNOTSUPP; 2345 2346 return ieee80211_request_sched_scan_start(sdata, req); 2347 } 2348 2349 static int 2350 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2351 u64 reqid) 2352 { 2353 struct ieee80211_local *local = wiphy_priv(wiphy); 2354 2355 if (!local->ops->sched_scan_stop) 2356 return -EOPNOTSUPP; 2357 2358 return ieee80211_request_sched_scan_stop(local); 2359 } 2360 2361 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2362 struct cfg80211_auth_request *req) 2363 { 2364 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2365 } 2366 2367 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2368 struct cfg80211_assoc_request *req) 2369 { 2370 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2371 } 2372 2373 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2374 struct cfg80211_deauth_request *req) 2375 { 2376 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2377 } 2378 2379 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2380 struct cfg80211_disassoc_request *req) 2381 { 2382 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2383 } 2384 2385 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2386 struct cfg80211_ibss_params *params) 2387 { 2388 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2389 } 2390 2391 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2392 { 2393 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2394 } 2395 2396 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2397 struct ocb_setup *setup) 2398 { 2399 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2400 } 2401 2402 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2403 { 2404 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2405 } 2406 2407 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2408 int rate[NUM_NL80211_BANDS]) 2409 { 2410 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2411 2412 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2413 sizeof(int) * NUM_NL80211_BANDS); 2414 2415 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2416 2417 return 0; 2418 } 2419 2420 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2421 { 2422 struct ieee80211_local *local = wiphy_priv(wiphy); 2423 int err; 2424 2425 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2426 ieee80211_check_fast_xmit_all(local); 2427 2428 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2429 2430 if (err) { 2431 ieee80211_check_fast_xmit_all(local); 2432 return err; 2433 } 2434 } 2435 2436 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2437 (changed & WIPHY_PARAM_DYN_ACK)) { 2438 s16 coverage_class; 2439 2440 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2441 wiphy->coverage_class : -1; 2442 err = drv_set_coverage_class(local, coverage_class); 2443 2444 if (err) 2445 return err; 2446 } 2447 2448 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2449 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2450 2451 if (err) 2452 return err; 2453 } 2454 2455 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2456 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2457 return -EINVAL; 2458 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2459 } 2460 if (changed & WIPHY_PARAM_RETRY_LONG) { 2461 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2462 return -EINVAL; 2463 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2464 } 2465 if (changed & 2466 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2467 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2468 2469 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2470 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2471 WIPHY_PARAM_TXQ_QUANTUM)) 2472 ieee80211_txq_set_params(local); 2473 2474 return 0; 2475 } 2476 2477 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2478 struct wireless_dev *wdev, 2479 enum nl80211_tx_power_setting type, int mbm) 2480 { 2481 struct ieee80211_local *local = wiphy_priv(wiphy); 2482 struct ieee80211_sub_if_data *sdata; 2483 enum nl80211_tx_power_setting txp_type = type; 2484 bool update_txp_type = false; 2485 bool has_monitor = false; 2486 2487 if (wdev) { 2488 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2489 2490 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2491 sdata = rtnl_dereference(local->monitor_sdata); 2492 if (!sdata) 2493 return -EOPNOTSUPP; 2494 } 2495 2496 switch (type) { 2497 case NL80211_TX_POWER_AUTOMATIC: 2498 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2499 txp_type = NL80211_TX_POWER_LIMITED; 2500 break; 2501 case NL80211_TX_POWER_LIMITED: 2502 case NL80211_TX_POWER_FIXED: 2503 if (mbm < 0 || (mbm % 100)) 2504 return -EOPNOTSUPP; 2505 sdata->user_power_level = MBM_TO_DBM(mbm); 2506 break; 2507 } 2508 2509 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2510 update_txp_type = true; 2511 sdata->vif.bss_conf.txpower_type = txp_type; 2512 } 2513 2514 ieee80211_recalc_txpower(sdata, update_txp_type); 2515 2516 return 0; 2517 } 2518 2519 switch (type) { 2520 case NL80211_TX_POWER_AUTOMATIC: 2521 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2522 txp_type = NL80211_TX_POWER_LIMITED; 2523 break; 2524 case NL80211_TX_POWER_LIMITED: 2525 case NL80211_TX_POWER_FIXED: 2526 if (mbm < 0 || (mbm % 100)) 2527 return -EOPNOTSUPP; 2528 local->user_power_level = MBM_TO_DBM(mbm); 2529 break; 2530 } 2531 2532 mutex_lock(&local->iflist_mtx); 2533 list_for_each_entry(sdata, &local->interfaces, list) { 2534 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2535 has_monitor = true; 2536 continue; 2537 } 2538 sdata->user_power_level = local->user_power_level; 2539 if (txp_type != sdata->vif.bss_conf.txpower_type) 2540 update_txp_type = true; 2541 sdata->vif.bss_conf.txpower_type = txp_type; 2542 } 2543 list_for_each_entry(sdata, &local->interfaces, list) { 2544 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2545 continue; 2546 ieee80211_recalc_txpower(sdata, update_txp_type); 2547 } 2548 mutex_unlock(&local->iflist_mtx); 2549 2550 if (has_monitor) { 2551 sdata = rtnl_dereference(local->monitor_sdata); 2552 if (sdata) { 2553 sdata->user_power_level = local->user_power_level; 2554 if (txp_type != sdata->vif.bss_conf.txpower_type) 2555 update_txp_type = true; 2556 sdata->vif.bss_conf.txpower_type = txp_type; 2557 2558 ieee80211_recalc_txpower(sdata, update_txp_type); 2559 } 2560 } 2561 2562 return 0; 2563 } 2564 2565 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2566 struct wireless_dev *wdev, 2567 int *dbm) 2568 { 2569 struct ieee80211_local *local = wiphy_priv(wiphy); 2570 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2571 2572 if (local->ops->get_txpower) 2573 return drv_get_txpower(local, sdata, dbm); 2574 2575 if (!local->use_chanctx) 2576 *dbm = local->hw.conf.power_level; 2577 else 2578 *dbm = sdata->vif.bss_conf.txpower; 2579 2580 return 0; 2581 } 2582 2583 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2584 const u8 *addr) 2585 { 2586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2587 2588 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2589 2590 return 0; 2591 } 2592 2593 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2594 { 2595 struct ieee80211_local *local = wiphy_priv(wiphy); 2596 2597 drv_rfkill_poll(local); 2598 } 2599 2600 #ifdef CONFIG_NL80211_TESTMODE 2601 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2602 struct wireless_dev *wdev, 2603 void *data, int len) 2604 { 2605 struct ieee80211_local *local = wiphy_priv(wiphy); 2606 struct ieee80211_vif *vif = NULL; 2607 2608 if (!local->ops->testmode_cmd) 2609 return -EOPNOTSUPP; 2610 2611 if (wdev) { 2612 struct ieee80211_sub_if_data *sdata; 2613 2614 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2615 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2616 vif = &sdata->vif; 2617 } 2618 2619 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2620 } 2621 2622 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2623 struct sk_buff *skb, 2624 struct netlink_callback *cb, 2625 void *data, int len) 2626 { 2627 struct ieee80211_local *local = wiphy_priv(wiphy); 2628 2629 if (!local->ops->testmode_dump) 2630 return -EOPNOTSUPP; 2631 2632 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2633 } 2634 #endif 2635 2636 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2637 enum ieee80211_smps_mode smps_mode) 2638 { 2639 struct sta_info *sta; 2640 enum ieee80211_smps_mode old_req; 2641 2642 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2643 return -EINVAL; 2644 2645 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2646 return 0; 2647 2648 old_req = sdata->u.ap.req_smps; 2649 sdata->u.ap.req_smps = smps_mode; 2650 2651 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2652 if (old_req == smps_mode || 2653 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2654 return 0; 2655 2656 ht_dbg(sdata, 2657 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2658 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2659 2660 mutex_lock(&sdata->local->sta_mtx); 2661 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2662 /* 2663 * Only stations associated to our AP and 2664 * associated VLANs 2665 */ 2666 if (sta->sdata->bss != &sdata->u.ap) 2667 continue; 2668 2669 /* This station doesn't support MIMO - skip it */ 2670 if (sta_info_tx_streams(sta) == 1) 2671 continue; 2672 2673 /* 2674 * Don't wake up a STA just to send the action frame 2675 * unless we are getting more restrictive. 2676 */ 2677 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2678 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2679 smps_mode)) { 2680 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2681 sta->sta.addr); 2682 continue; 2683 } 2684 2685 /* 2686 * If the STA is not authorized, wait until it gets 2687 * authorized and the action frame will be sent then. 2688 */ 2689 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2690 continue; 2691 2692 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2693 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2694 sdata->vif.bss_conf.bssid); 2695 } 2696 mutex_unlock(&sdata->local->sta_mtx); 2697 2698 sdata->smps_mode = smps_mode; 2699 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2700 2701 return 0; 2702 } 2703 2704 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2705 enum ieee80211_smps_mode smps_mode) 2706 { 2707 const u8 *ap; 2708 enum ieee80211_smps_mode old_req; 2709 int err; 2710 struct sta_info *sta; 2711 bool tdls_peer_found = false; 2712 2713 lockdep_assert_held(&sdata->wdev.mtx); 2714 2715 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2716 return -EINVAL; 2717 2718 old_req = sdata->u.mgd.req_smps; 2719 sdata->u.mgd.req_smps = smps_mode; 2720 2721 if (old_req == smps_mode && 2722 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2723 return 0; 2724 2725 /* 2726 * If not associated, or current association is not an HT 2727 * association, there's no need to do anything, just store 2728 * the new value until we associate. 2729 */ 2730 if (!sdata->u.mgd.associated || 2731 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2732 return 0; 2733 2734 ap = sdata->u.mgd.associated->bssid; 2735 2736 rcu_read_lock(); 2737 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2738 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2739 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2740 continue; 2741 2742 tdls_peer_found = true; 2743 break; 2744 } 2745 rcu_read_unlock(); 2746 2747 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2748 if (tdls_peer_found || !sdata->u.mgd.powersave) 2749 smps_mode = IEEE80211_SMPS_OFF; 2750 else 2751 smps_mode = IEEE80211_SMPS_DYNAMIC; 2752 } 2753 2754 /* send SM PS frame to AP */ 2755 err = ieee80211_send_smps_action(sdata, smps_mode, 2756 ap, ap); 2757 if (err) 2758 sdata->u.mgd.req_smps = old_req; 2759 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2760 ieee80211_teardown_tdls_peers(sdata); 2761 2762 return err; 2763 } 2764 2765 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2766 bool enabled, int timeout) 2767 { 2768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2769 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2770 2771 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2772 return -EOPNOTSUPP; 2773 2774 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2775 return -EOPNOTSUPP; 2776 2777 if (enabled == sdata->u.mgd.powersave && 2778 timeout == local->dynamic_ps_forced_timeout) 2779 return 0; 2780 2781 sdata->u.mgd.powersave = enabled; 2782 local->dynamic_ps_forced_timeout = timeout; 2783 2784 /* no change, but if automatic follow powersave */ 2785 sdata_lock(sdata); 2786 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2787 sdata_unlock(sdata); 2788 2789 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2790 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2791 2792 ieee80211_recalc_ps(local); 2793 ieee80211_recalc_ps_vif(sdata); 2794 ieee80211_check_fast_rx_iface(sdata); 2795 2796 return 0; 2797 } 2798 2799 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2800 struct net_device *dev, 2801 s32 rssi_thold, u32 rssi_hyst) 2802 { 2803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2804 struct ieee80211_vif *vif = &sdata->vif; 2805 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2806 2807 if (rssi_thold == bss_conf->cqm_rssi_thold && 2808 rssi_hyst == bss_conf->cqm_rssi_hyst) 2809 return 0; 2810 2811 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2812 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2813 return -EOPNOTSUPP; 2814 2815 bss_conf->cqm_rssi_thold = rssi_thold; 2816 bss_conf->cqm_rssi_hyst = rssi_hyst; 2817 bss_conf->cqm_rssi_low = 0; 2818 bss_conf->cqm_rssi_high = 0; 2819 sdata->u.mgd.last_cqm_event_signal = 0; 2820 2821 /* tell the driver upon association, unless already associated */ 2822 if (sdata->u.mgd.associated && 2823 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2824 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2825 2826 return 0; 2827 } 2828 2829 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2830 struct net_device *dev, 2831 s32 rssi_low, s32 rssi_high) 2832 { 2833 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2834 struct ieee80211_vif *vif = &sdata->vif; 2835 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2836 2837 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2838 return -EOPNOTSUPP; 2839 2840 bss_conf->cqm_rssi_low = rssi_low; 2841 bss_conf->cqm_rssi_high = rssi_high; 2842 bss_conf->cqm_rssi_thold = 0; 2843 bss_conf->cqm_rssi_hyst = 0; 2844 sdata->u.mgd.last_cqm_event_signal = 0; 2845 2846 /* tell the driver upon association, unless already associated */ 2847 if (sdata->u.mgd.associated && 2848 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2849 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2850 2851 return 0; 2852 } 2853 2854 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2855 struct net_device *dev, 2856 const u8 *addr, 2857 const struct cfg80211_bitrate_mask *mask) 2858 { 2859 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2860 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2861 int i, ret; 2862 2863 if (!ieee80211_sdata_running(sdata)) 2864 return -ENETDOWN; 2865 2866 /* 2867 * If active validate the setting and reject it if it doesn't leave 2868 * at least one basic rate usable, since we really have to be able 2869 * to send something, and if we're an AP we have to be able to do 2870 * so at a basic rate so that all clients can receive it. 2871 */ 2872 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2873 sdata->vif.bss_conf.chandef.chan) { 2874 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2875 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2876 2877 if (!(mask->control[band].legacy & basic_rates)) 2878 return -EINVAL; 2879 } 2880 2881 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2882 ret = drv_set_bitrate_mask(local, sdata, mask); 2883 if (ret) 2884 return ret; 2885 } 2886 2887 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2888 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2889 int j; 2890 2891 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2892 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2893 sizeof(mask->control[i].ht_mcs)); 2894 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2895 mask->control[i].vht_mcs, 2896 sizeof(mask->control[i].vht_mcs)); 2897 2898 sdata->rc_has_mcs_mask[i] = false; 2899 sdata->rc_has_vht_mcs_mask[i] = false; 2900 if (!sband) 2901 continue; 2902 2903 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2904 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2905 sdata->rc_has_mcs_mask[i] = true; 2906 break; 2907 } 2908 } 2909 2910 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2911 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2912 sdata->rc_has_vht_mcs_mask[i] = true; 2913 break; 2914 } 2915 } 2916 } 2917 2918 return 0; 2919 } 2920 2921 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2922 struct net_device *dev, 2923 struct cfg80211_chan_def *chandef, 2924 u32 cac_time_ms) 2925 { 2926 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2927 struct ieee80211_local *local = sdata->local; 2928 int err; 2929 2930 mutex_lock(&local->mtx); 2931 if (!list_empty(&local->roc_list) || local->scanning) { 2932 err = -EBUSY; 2933 goto out_unlock; 2934 } 2935 2936 /* whatever, but channel contexts should not complain about that one */ 2937 sdata->smps_mode = IEEE80211_SMPS_OFF; 2938 sdata->needed_rx_chains = local->rx_chains; 2939 2940 err = ieee80211_vif_use_channel(sdata, chandef, 2941 IEEE80211_CHANCTX_SHARED); 2942 if (err) 2943 goto out_unlock; 2944 2945 ieee80211_queue_delayed_work(&sdata->local->hw, 2946 &sdata->dfs_cac_timer_work, 2947 msecs_to_jiffies(cac_time_ms)); 2948 2949 out_unlock: 2950 mutex_unlock(&local->mtx); 2951 return err; 2952 } 2953 2954 static struct cfg80211_beacon_data * 2955 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2956 { 2957 struct cfg80211_beacon_data *new_beacon; 2958 u8 *pos; 2959 int len; 2960 2961 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2962 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2963 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2964 2965 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2966 if (!new_beacon) 2967 return NULL; 2968 2969 pos = (u8 *)(new_beacon + 1); 2970 if (beacon->head_len) { 2971 new_beacon->head_len = beacon->head_len; 2972 new_beacon->head = pos; 2973 memcpy(pos, beacon->head, beacon->head_len); 2974 pos += beacon->head_len; 2975 } 2976 if (beacon->tail_len) { 2977 new_beacon->tail_len = beacon->tail_len; 2978 new_beacon->tail = pos; 2979 memcpy(pos, beacon->tail, beacon->tail_len); 2980 pos += beacon->tail_len; 2981 } 2982 if (beacon->beacon_ies_len) { 2983 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2984 new_beacon->beacon_ies = pos; 2985 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2986 pos += beacon->beacon_ies_len; 2987 } 2988 if (beacon->proberesp_ies_len) { 2989 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2990 new_beacon->proberesp_ies = pos; 2991 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2992 pos += beacon->proberesp_ies_len; 2993 } 2994 if (beacon->assocresp_ies_len) { 2995 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2996 new_beacon->assocresp_ies = pos; 2997 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2998 pos += beacon->assocresp_ies_len; 2999 } 3000 if (beacon->probe_resp_len) { 3001 new_beacon->probe_resp_len = beacon->probe_resp_len; 3002 new_beacon->probe_resp = pos; 3003 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3004 pos += beacon->probe_resp_len; 3005 } 3006 3007 /* might copy -1, meaning no changes requested */ 3008 new_beacon->ftm_responder = beacon->ftm_responder; 3009 if (beacon->lci) { 3010 new_beacon->lci_len = beacon->lci_len; 3011 new_beacon->lci = pos; 3012 memcpy(pos, beacon->lci, beacon->lci_len); 3013 pos += beacon->lci_len; 3014 } 3015 if (beacon->civicloc) { 3016 new_beacon->civicloc_len = beacon->civicloc_len; 3017 new_beacon->civicloc = pos; 3018 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3019 pos += beacon->civicloc_len; 3020 } 3021 3022 return new_beacon; 3023 } 3024 3025 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3026 { 3027 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3028 3029 ieee80211_queue_work(&sdata->local->hw, 3030 &sdata->csa_finalize_work); 3031 } 3032 EXPORT_SYMBOL(ieee80211_csa_finish); 3033 3034 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3035 u32 *changed) 3036 { 3037 int err; 3038 3039 switch (sdata->vif.type) { 3040 case NL80211_IFTYPE_AP: 3041 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3042 NULL); 3043 kfree(sdata->u.ap.next_beacon); 3044 sdata->u.ap.next_beacon = NULL; 3045 3046 if (err < 0) 3047 return err; 3048 *changed |= err; 3049 break; 3050 case NL80211_IFTYPE_ADHOC: 3051 err = ieee80211_ibss_finish_csa(sdata); 3052 if (err < 0) 3053 return err; 3054 *changed |= err; 3055 break; 3056 #ifdef CONFIG_MAC80211_MESH 3057 case NL80211_IFTYPE_MESH_POINT: 3058 err = ieee80211_mesh_finish_csa(sdata); 3059 if (err < 0) 3060 return err; 3061 *changed |= err; 3062 break; 3063 #endif 3064 default: 3065 WARN_ON(1); 3066 return -EINVAL; 3067 } 3068 3069 return 0; 3070 } 3071 3072 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3073 { 3074 struct ieee80211_local *local = sdata->local; 3075 u32 changed = 0; 3076 int err; 3077 3078 sdata_assert_lock(sdata); 3079 lockdep_assert_held(&local->mtx); 3080 lockdep_assert_held(&local->chanctx_mtx); 3081 3082 /* 3083 * using reservation isn't immediate as it may be deferred until later 3084 * with multi-vif. once reservation is complete it will re-schedule the 3085 * work with no reserved_chanctx so verify chandef to check if it 3086 * completed successfully 3087 */ 3088 3089 if (sdata->reserved_chanctx) { 3090 /* 3091 * with multi-vif csa driver may call ieee80211_csa_finish() 3092 * many times while waiting for other interfaces to use their 3093 * reservations 3094 */ 3095 if (sdata->reserved_ready) 3096 return 0; 3097 3098 return ieee80211_vif_use_reserved_context(sdata); 3099 } 3100 3101 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3102 &sdata->csa_chandef)) 3103 return -EINVAL; 3104 3105 sdata->vif.csa_active = false; 3106 3107 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3108 if (err) 3109 return err; 3110 3111 ieee80211_bss_info_change_notify(sdata, changed); 3112 3113 if (sdata->csa_block_tx) { 3114 ieee80211_wake_vif_queues(local, sdata, 3115 IEEE80211_QUEUE_STOP_REASON_CSA); 3116 sdata->csa_block_tx = false; 3117 } 3118 3119 err = drv_post_channel_switch(sdata); 3120 if (err) 3121 return err; 3122 3123 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3124 3125 return 0; 3126 } 3127 3128 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3129 { 3130 if (__ieee80211_csa_finalize(sdata)) { 3131 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3132 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3133 GFP_KERNEL); 3134 } 3135 } 3136 3137 void ieee80211_csa_finalize_work(struct work_struct *work) 3138 { 3139 struct ieee80211_sub_if_data *sdata = 3140 container_of(work, struct ieee80211_sub_if_data, 3141 csa_finalize_work); 3142 struct ieee80211_local *local = sdata->local; 3143 3144 sdata_lock(sdata); 3145 mutex_lock(&local->mtx); 3146 mutex_lock(&local->chanctx_mtx); 3147 3148 /* AP might have been stopped while waiting for the lock. */ 3149 if (!sdata->vif.csa_active) 3150 goto unlock; 3151 3152 if (!ieee80211_sdata_running(sdata)) 3153 goto unlock; 3154 3155 ieee80211_csa_finalize(sdata); 3156 3157 unlock: 3158 mutex_unlock(&local->chanctx_mtx); 3159 mutex_unlock(&local->mtx); 3160 sdata_unlock(sdata); 3161 } 3162 3163 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3164 struct cfg80211_csa_settings *params, 3165 u32 *changed) 3166 { 3167 struct ieee80211_csa_settings csa = {}; 3168 int err; 3169 3170 switch (sdata->vif.type) { 3171 case NL80211_IFTYPE_AP: 3172 sdata->u.ap.next_beacon = 3173 cfg80211_beacon_dup(¶ms->beacon_after); 3174 if (!sdata->u.ap.next_beacon) 3175 return -ENOMEM; 3176 3177 /* 3178 * With a count of 0, we don't have to wait for any 3179 * TBTT before switching, so complete the CSA 3180 * immediately. In theory, with a count == 1 we 3181 * should delay the switch until just before the next 3182 * TBTT, but that would complicate things so we switch 3183 * immediately too. If we would delay the switch 3184 * until the next TBTT, we would have to set the probe 3185 * response here. 3186 * 3187 * TODO: A channel switch with count <= 1 without 3188 * sending a CSA action frame is kind of useless, 3189 * because the clients won't know we're changing 3190 * channels. The action frame must be implemented 3191 * either here or in the userspace. 3192 */ 3193 if (params->count <= 1) 3194 break; 3195 3196 if ((params->n_counter_offsets_beacon > 3197 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3198 (params->n_counter_offsets_presp > 3199 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3200 return -EINVAL; 3201 3202 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3203 csa.counter_offsets_presp = params->counter_offsets_presp; 3204 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3205 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3206 csa.count = params->count; 3207 3208 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3209 if (err < 0) { 3210 kfree(sdata->u.ap.next_beacon); 3211 return err; 3212 } 3213 *changed |= err; 3214 3215 break; 3216 case NL80211_IFTYPE_ADHOC: 3217 if (!sdata->vif.bss_conf.ibss_joined) 3218 return -EINVAL; 3219 3220 if (params->chandef.width != sdata->u.ibss.chandef.width) 3221 return -EINVAL; 3222 3223 switch (params->chandef.width) { 3224 case NL80211_CHAN_WIDTH_40: 3225 if (cfg80211_get_chandef_type(¶ms->chandef) != 3226 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3227 return -EINVAL; 3228 case NL80211_CHAN_WIDTH_5: 3229 case NL80211_CHAN_WIDTH_10: 3230 case NL80211_CHAN_WIDTH_20_NOHT: 3231 case NL80211_CHAN_WIDTH_20: 3232 break; 3233 default: 3234 return -EINVAL; 3235 } 3236 3237 /* changes into another band are not supported */ 3238 if (sdata->u.ibss.chandef.chan->band != 3239 params->chandef.chan->band) 3240 return -EINVAL; 3241 3242 /* see comments in the NL80211_IFTYPE_AP block */ 3243 if (params->count > 1) { 3244 err = ieee80211_ibss_csa_beacon(sdata, params); 3245 if (err < 0) 3246 return err; 3247 *changed |= err; 3248 } 3249 3250 ieee80211_send_action_csa(sdata, params); 3251 3252 break; 3253 #ifdef CONFIG_MAC80211_MESH 3254 case NL80211_IFTYPE_MESH_POINT: { 3255 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3256 3257 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3258 return -EINVAL; 3259 3260 /* changes into another band are not supported */ 3261 if (sdata->vif.bss_conf.chandef.chan->band != 3262 params->chandef.chan->band) 3263 return -EINVAL; 3264 3265 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3266 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3267 if (!ifmsh->pre_value) 3268 ifmsh->pre_value = 1; 3269 else 3270 ifmsh->pre_value++; 3271 } 3272 3273 /* see comments in the NL80211_IFTYPE_AP block */ 3274 if (params->count > 1) { 3275 err = ieee80211_mesh_csa_beacon(sdata, params); 3276 if (err < 0) { 3277 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3278 return err; 3279 } 3280 *changed |= err; 3281 } 3282 3283 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3284 ieee80211_send_action_csa(sdata, params); 3285 3286 break; 3287 } 3288 #endif 3289 default: 3290 return -EOPNOTSUPP; 3291 } 3292 3293 return 0; 3294 } 3295 3296 static int 3297 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3298 struct cfg80211_csa_settings *params) 3299 { 3300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3301 struct ieee80211_local *local = sdata->local; 3302 struct ieee80211_channel_switch ch_switch; 3303 struct ieee80211_chanctx_conf *conf; 3304 struct ieee80211_chanctx *chanctx; 3305 u32 changed = 0; 3306 int err; 3307 3308 sdata_assert_lock(sdata); 3309 lockdep_assert_held(&local->mtx); 3310 3311 if (!list_empty(&local->roc_list) || local->scanning) 3312 return -EBUSY; 3313 3314 if (sdata->wdev.cac_started) 3315 return -EBUSY; 3316 3317 if (cfg80211_chandef_identical(¶ms->chandef, 3318 &sdata->vif.bss_conf.chandef)) 3319 return -EINVAL; 3320 3321 /* don't allow another channel switch if one is already active. */ 3322 if (sdata->vif.csa_active) 3323 return -EBUSY; 3324 3325 mutex_lock(&local->chanctx_mtx); 3326 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3327 lockdep_is_held(&local->chanctx_mtx)); 3328 if (!conf) { 3329 err = -EBUSY; 3330 goto out; 3331 } 3332 3333 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3334 3335 ch_switch.timestamp = 0; 3336 ch_switch.device_timestamp = 0; 3337 ch_switch.block_tx = params->block_tx; 3338 ch_switch.chandef = params->chandef; 3339 ch_switch.count = params->count; 3340 3341 err = drv_pre_channel_switch(sdata, &ch_switch); 3342 if (err) 3343 goto out; 3344 3345 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3346 chanctx->mode, 3347 params->radar_required); 3348 if (err) 3349 goto out; 3350 3351 /* if reservation is invalid then this will fail */ 3352 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3353 if (err) { 3354 ieee80211_vif_unreserve_chanctx(sdata); 3355 goto out; 3356 } 3357 3358 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3359 if (err) { 3360 ieee80211_vif_unreserve_chanctx(sdata); 3361 goto out; 3362 } 3363 3364 sdata->csa_chandef = params->chandef; 3365 sdata->csa_block_tx = params->block_tx; 3366 sdata->vif.csa_active = true; 3367 3368 if (sdata->csa_block_tx) 3369 ieee80211_stop_vif_queues(local, sdata, 3370 IEEE80211_QUEUE_STOP_REASON_CSA); 3371 3372 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3373 params->count); 3374 3375 if (changed) { 3376 ieee80211_bss_info_change_notify(sdata, changed); 3377 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3378 } else { 3379 /* if the beacon didn't change, we can finalize immediately */ 3380 ieee80211_csa_finalize(sdata); 3381 } 3382 3383 out: 3384 mutex_unlock(&local->chanctx_mtx); 3385 return err; 3386 } 3387 3388 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3389 struct cfg80211_csa_settings *params) 3390 { 3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3392 struct ieee80211_local *local = sdata->local; 3393 int err; 3394 3395 mutex_lock(&local->mtx); 3396 err = __ieee80211_channel_switch(wiphy, dev, params); 3397 mutex_unlock(&local->mtx); 3398 3399 return err; 3400 } 3401 3402 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3403 { 3404 lockdep_assert_held(&local->mtx); 3405 3406 local->roc_cookie_counter++; 3407 3408 /* wow, you wrapped 64 bits ... more likely a bug */ 3409 if (WARN_ON(local->roc_cookie_counter == 0)) 3410 local->roc_cookie_counter++; 3411 3412 return local->roc_cookie_counter; 3413 } 3414 3415 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3416 u64 *cookie, gfp_t gfp) 3417 { 3418 unsigned long spin_flags; 3419 struct sk_buff *ack_skb; 3420 int id; 3421 3422 ack_skb = skb_copy(skb, gfp); 3423 if (!ack_skb) 3424 return -ENOMEM; 3425 3426 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3427 id = idr_alloc(&local->ack_status_frames, ack_skb, 3428 1, 0x10000, GFP_ATOMIC); 3429 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3430 3431 if (id < 0) { 3432 kfree_skb(ack_skb); 3433 return -ENOMEM; 3434 } 3435 3436 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3437 3438 *cookie = ieee80211_mgmt_tx_cookie(local); 3439 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3440 3441 return 0; 3442 } 3443 3444 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3445 struct wireless_dev *wdev, 3446 u16 frame_type, bool reg) 3447 { 3448 struct ieee80211_local *local = wiphy_priv(wiphy); 3449 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3450 3451 switch (frame_type) { 3452 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3453 if (reg) { 3454 local->probe_req_reg++; 3455 sdata->vif.probe_req_reg++; 3456 } else { 3457 if (local->probe_req_reg) 3458 local->probe_req_reg--; 3459 3460 if (sdata->vif.probe_req_reg) 3461 sdata->vif.probe_req_reg--; 3462 } 3463 3464 if (!local->open_count) 3465 break; 3466 3467 if (sdata->vif.probe_req_reg == 1) 3468 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3469 FIF_PROBE_REQ); 3470 else if (sdata->vif.probe_req_reg == 0) 3471 drv_config_iface_filter(local, sdata, 0, 3472 FIF_PROBE_REQ); 3473 3474 ieee80211_configure_filter(local); 3475 break; 3476 default: 3477 break; 3478 } 3479 } 3480 3481 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3482 { 3483 struct ieee80211_local *local = wiphy_priv(wiphy); 3484 3485 if (local->started) 3486 return -EOPNOTSUPP; 3487 3488 return drv_set_antenna(local, tx_ant, rx_ant); 3489 } 3490 3491 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3492 { 3493 struct ieee80211_local *local = wiphy_priv(wiphy); 3494 3495 return drv_get_antenna(local, tx_ant, rx_ant); 3496 } 3497 3498 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3499 struct net_device *dev, 3500 struct cfg80211_gtk_rekey_data *data) 3501 { 3502 struct ieee80211_local *local = wiphy_priv(wiphy); 3503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3504 3505 if (!local->ops->set_rekey_data) 3506 return -EOPNOTSUPP; 3507 3508 drv_set_rekey_data(local, sdata, data); 3509 3510 return 0; 3511 } 3512 3513 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3514 const u8 *peer, u64 *cookie) 3515 { 3516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3517 struct ieee80211_local *local = sdata->local; 3518 struct ieee80211_qos_hdr *nullfunc; 3519 struct sk_buff *skb; 3520 int size = sizeof(*nullfunc); 3521 __le16 fc; 3522 bool qos; 3523 struct ieee80211_tx_info *info; 3524 struct sta_info *sta; 3525 struct ieee80211_chanctx_conf *chanctx_conf; 3526 enum nl80211_band band; 3527 int ret; 3528 3529 /* the lock is needed to assign the cookie later */ 3530 mutex_lock(&local->mtx); 3531 3532 rcu_read_lock(); 3533 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3534 if (WARN_ON(!chanctx_conf)) { 3535 ret = -EINVAL; 3536 goto unlock; 3537 } 3538 band = chanctx_conf->def.chan->band; 3539 sta = sta_info_get_bss(sdata, peer); 3540 if (sta) { 3541 qos = sta->sta.wme; 3542 } else { 3543 ret = -ENOLINK; 3544 goto unlock; 3545 } 3546 3547 if (qos) { 3548 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3549 IEEE80211_STYPE_QOS_NULLFUNC | 3550 IEEE80211_FCTL_FROMDS); 3551 } else { 3552 size -= 2; 3553 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3554 IEEE80211_STYPE_NULLFUNC | 3555 IEEE80211_FCTL_FROMDS); 3556 } 3557 3558 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3559 if (!skb) { 3560 ret = -ENOMEM; 3561 goto unlock; 3562 } 3563 3564 skb->dev = dev; 3565 3566 skb_reserve(skb, local->hw.extra_tx_headroom); 3567 3568 nullfunc = skb_put(skb, size); 3569 nullfunc->frame_control = fc; 3570 nullfunc->duration_id = 0; 3571 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3572 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3573 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3574 nullfunc->seq_ctrl = 0; 3575 3576 info = IEEE80211_SKB_CB(skb); 3577 3578 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3579 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3580 info->band = band; 3581 3582 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3583 skb->priority = 7; 3584 if (qos) 3585 nullfunc->qos_ctrl = cpu_to_le16(7); 3586 3587 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3588 if (ret) { 3589 kfree_skb(skb); 3590 goto unlock; 3591 } 3592 3593 local_bh_disable(); 3594 ieee80211_xmit(sdata, sta, skb, 0); 3595 local_bh_enable(); 3596 3597 ret = 0; 3598 unlock: 3599 rcu_read_unlock(); 3600 mutex_unlock(&local->mtx); 3601 3602 return ret; 3603 } 3604 3605 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3606 struct wireless_dev *wdev, 3607 struct cfg80211_chan_def *chandef) 3608 { 3609 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3610 struct ieee80211_local *local = wiphy_priv(wiphy); 3611 struct ieee80211_chanctx_conf *chanctx_conf; 3612 int ret = -ENODATA; 3613 3614 rcu_read_lock(); 3615 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3616 if (chanctx_conf) { 3617 *chandef = sdata->vif.bss_conf.chandef; 3618 ret = 0; 3619 } else if (local->open_count > 0 && 3620 local->open_count == local->monitors && 3621 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3622 if (local->use_chanctx) 3623 *chandef = local->monitor_chandef; 3624 else 3625 *chandef = local->_oper_chandef; 3626 ret = 0; 3627 } 3628 rcu_read_unlock(); 3629 3630 return ret; 3631 } 3632 3633 #ifdef CONFIG_PM 3634 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3635 { 3636 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3637 } 3638 #endif 3639 3640 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3641 struct net_device *dev, 3642 struct cfg80211_qos_map *qos_map) 3643 { 3644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3645 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3646 3647 if (qos_map) { 3648 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3649 if (!new_qos_map) 3650 return -ENOMEM; 3651 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3652 } else { 3653 /* A NULL qos_map was passed to disable QoS mapping */ 3654 new_qos_map = NULL; 3655 } 3656 3657 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3658 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3659 if (old_qos_map) 3660 kfree_rcu(old_qos_map, rcu_head); 3661 3662 return 0; 3663 } 3664 3665 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3666 struct net_device *dev, 3667 struct cfg80211_chan_def *chandef) 3668 { 3669 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3670 int ret; 3671 u32 changed = 0; 3672 3673 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3674 if (ret == 0) 3675 ieee80211_bss_info_change_notify(sdata, changed); 3676 3677 return ret; 3678 } 3679 3680 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3681 u8 tsid, const u8 *peer, u8 up, 3682 u16 admitted_time) 3683 { 3684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3685 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3686 int ac = ieee802_1d_to_ac[up]; 3687 3688 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3689 return -EOPNOTSUPP; 3690 3691 if (!(sdata->wmm_acm & BIT(up))) 3692 return -EINVAL; 3693 3694 if (ifmgd->tx_tspec[ac].admitted_time) 3695 return -EBUSY; 3696 3697 if (admitted_time) { 3698 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3699 ifmgd->tx_tspec[ac].tsid = tsid; 3700 ifmgd->tx_tspec[ac].up = up; 3701 } 3702 3703 return 0; 3704 } 3705 3706 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3707 u8 tsid, const u8 *peer) 3708 { 3709 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3710 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3711 struct ieee80211_local *local = wiphy_priv(wiphy); 3712 int ac; 3713 3714 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3715 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3716 3717 /* skip unused entries */ 3718 if (!tx_tspec->admitted_time) 3719 continue; 3720 3721 if (tx_tspec->tsid != tsid) 3722 continue; 3723 3724 /* due to this new packets will be reassigned to non-ACM ACs */ 3725 tx_tspec->up = -1; 3726 3727 /* Make sure that all packets have been sent to avoid to 3728 * restore the QoS params on packets that are still on the 3729 * queues. 3730 */ 3731 synchronize_net(); 3732 ieee80211_flush_queues(local, sdata, false); 3733 3734 /* restore the normal QoS parameters 3735 * (unconditionally to avoid races) 3736 */ 3737 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3738 tx_tspec->downgraded = false; 3739 ieee80211_sta_handle_tspec_ac_params(sdata); 3740 3741 /* finally clear all the data */ 3742 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3743 3744 return 0; 3745 } 3746 3747 return -ENOENT; 3748 } 3749 3750 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3751 u8 inst_id, 3752 enum nl80211_nan_func_term_reason reason, 3753 gfp_t gfp) 3754 { 3755 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3756 struct cfg80211_nan_func *func; 3757 u64 cookie; 3758 3759 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3760 return; 3761 3762 spin_lock_bh(&sdata->u.nan.func_lock); 3763 3764 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3765 if (WARN_ON(!func)) { 3766 spin_unlock_bh(&sdata->u.nan.func_lock); 3767 return; 3768 } 3769 3770 cookie = func->cookie; 3771 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3772 3773 spin_unlock_bh(&sdata->u.nan.func_lock); 3774 3775 cfg80211_free_nan_func(func); 3776 3777 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3778 reason, cookie, gfp); 3779 } 3780 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3781 3782 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3783 struct cfg80211_nan_match_params *match, 3784 gfp_t gfp) 3785 { 3786 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3787 struct cfg80211_nan_func *func; 3788 3789 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3790 return; 3791 3792 spin_lock_bh(&sdata->u.nan.func_lock); 3793 3794 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3795 if (WARN_ON(!func)) { 3796 spin_unlock_bh(&sdata->u.nan.func_lock); 3797 return; 3798 } 3799 match->cookie = func->cookie; 3800 3801 spin_unlock_bh(&sdata->u.nan.func_lock); 3802 3803 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3804 } 3805 EXPORT_SYMBOL(ieee80211_nan_func_match); 3806 3807 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3808 struct net_device *dev, 3809 const bool enabled) 3810 { 3811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3812 3813 sdata->u.ap.multicast_to_unicast = enabled; 3814 3815 return 0; 3816 } 3817 3818 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3819 struct txq_info *txqi) 3820 { 3821 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3822 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3823 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3824 } 3825 3826 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3827 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3828 txqstats->backlog_packets = txqi->tin.backlog_packets; 3829 } 3830 3831 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3832 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3833 txqstats->flows = txqi->tin.flows; 3834 } 3835 3836 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3837 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3838 txqstats->drops = txqi->cstats.drop_count; 3839 } 3840 3841 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3842 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3843 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3844 } 3845 3846 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3847 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3848 txqstats->overlimit = txqi->tin.overlimit; 3849 } 3850 3851 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3852 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3853 txqstats->collisions = txqi->tin.collisions; 3854 } 3855 3856 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3857 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3858 txqstats->tx_bytes = txqi->tin.tx_bytes; 3859 } 3860 3861 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3862 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3863 txqstats->tx_packets = txqi->tin.tx_packets; 3864 } 3865 } 3866 3867 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3868 struct wireless_dev *wdev, 3869 struct cfg80211_txq_stats *txqstats) 3870 { 3871 struct ieee80211_local *local = wiphy_priv(wiphy); 3872 struct ieee80211_sub_if_data *sdata; 3873 int ret = 0; 3874 3875 if (!local->ops->wake_tx_queue) 3876 return 1; 3877 3878 spin_lock_bh(&local->fq.lock); 3879 rcu_read_lock(); 3880 3881 if (wdev) { 3882 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3883 if (!sdata->vif.txq) { 3884 ret = 1; 3885 goto out; 3886 } 3887 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3888 } else { 3889 /* phy stats */ 3890 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3891 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3892 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3893 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3894 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3895 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3896 txqstats->backlog_packets = local->fq.backlog; 3897 txqstats->backlog_bytes = local->fq.memory_usage; 3898 txqstats->overlimit = local->fq.overlimit; 3899 txqstats->overmemory = local->fq.overmemory; 3900 txqstats->collisions = local->fq.collisions; 3901 txqstats->max_flows = local->fq.flows_cnt; 3902 } 3903 3904 out: 3905 rcu_read_unlock(); 3906 spin_unlock_bh(&local->fq.lock); 3907 3908 return ret; 3909 } 3910 3911 static int 3912 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3913 struct net_device *dev, 3914 struct cfg80211_ftm_responder_stats *ftm_stats) 3915 { 3916 struct ieee80211_local *local = wiphy_priv(wiphy); 3917 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3918 3919 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3920 } 3921 3922 static int 3923 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3924 struct cfg80211_pmsr_request *request) 3925 { 3926 struct ieee80211_local *local = wiphy_priv(wiphy); 3927 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3928 3929 return drv_start_pmsr(local, sdata, request); 3930 } 3931 3932 static void 3933 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3934 struct cfg80211_pmsr_request *request) 3935 { 3936 struct ieee80211_local *local = wiphy_priv(wiphy); 3937 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3938 3939 return drv_abort_pmsr(local, sdata, request); 3940 } 3941 3942 const struct cfg80211_ops mac80211_config_ops = { 3943 .add_virtual_intf = ieee80211_add_iface, 3944 .del_virtual_intf = ieee80211_del_iface, 3945 .change_virtual_intf = ieee80211_change_iface, 3946 .start_p2p_device = ieee80211_start_p2p_device, 3947 .stop_p2p_device = ieee80211_stop_p2p_device, 3948 .add_key = ieee80211_add_key, 3949 .del_key = ieee80211_del_key, 3950 .get_key = ieee80211_get_key, 3951 .set_default_key = ieee80211_config_default_key, 3952 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3953 .start_ap = ieee80211_start_ap, 3954 .change_beacon = ieee80211_change_beacon, 3955 .stop_ap = ieee80211_stop_ap, 3956 .add_station = ieee80211_add_station, 3957 .del_station = ieee80211_del_station, 3958 .change_station = ieee80211_change_station, 3959 .get_station = ieee80211_get_station, 3960 .dump_station = ieee80211_dump_station, 3961 .dump_survey = ieee80211_dump_survey, 3962 #ifdef CONFIG_MAC80211_MESH 3963 .add_mpath = ieee80211_add_mpath, 3964 .del_mpath = ieee80211_del_mpath, 3965 .change_mpath = ieee80211_change_mpath, 3966 .get_mpath = ieee80211_get_mpath, 3967 .dump_mpath = ieee80211_dump_mpath, 3968 .get_mpp = ieee80211_get_mpp, 3969 .dump_mpp = ieee80211_dump_mpp, 3970 .update_mesh_config = ieee80211_update_mesh_config, 3971 .get_mesh_config = ieee80211_get_mesh_config, 3972 .join_mesh = ieee80211_join_mesh, 3973 .leave_mesh = ieee80211_leave_mesh, 3974 #endif 3975 .join_ocb = ieee80211_join_ocb, 3976 .leave_ocb = ieee80211_leave_ocb, 3977 .change_bss = ieee80211_change_bss, 3978 .set_txq_params = ieee80211_set_txq_params, 3979 .set_monitor_channel = ieee80211_set_monitor_channel, 3980 .suspend = ieee80211_suspend, 3981 .resume = ieee80211_resume, 3982 .scan = ieee80211_scan, 3983 .abort_scan = ieee80211_abort_scan, 3984 .sched_scan_start = ieee80211_sched_scan_start, 3985 .sched_scan_stop = ieee80211_sched_scan_stop, 3986 .auth = ieee80211_auth, 3987 .assoc = ieee80211_assoc, 3988 .deauth = ieee80211_deauth, 3989 .disassoc = ieee80211_disassoc, 3990 .join_ibss = ieee80211_join_ibss, 3991 .leave_ibss = ieee80211_leave_ibss, 3992 .set_mcast_rate = ieee80211_set_mcast_rate, 3993 .set_wiphy_params = ieee80211_set_wiphy_params, 3994 .set_tx_power = ieee80211_set_tx_power, 3995 .get_tx_power = ieee80211_get_tx_power, 3996 .set_wds_peer = ieee80211_set_wds_peer, 3997 .rfkill_poll = ieee80211_rfkill_poll, 3998 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3999 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4000 .set_power_mgmt = ieee80211_set_power_mgmt, 4001 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4002 .remain_on_channel = ieee80211_remain_on_channel, 4003 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4004 .mgmt_tx = ieee80211_mgmt_tx, 4005 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4006 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4007 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4008 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4009 .set_antenna = ieee80211_set_antenna, 4010 .get_antenna = ieee80211_get_antenna, 4011 .set_rekey_data = ieee80211_set_rekey_data, 4012 .tdls_oper = ieee80211_tdls_oper, 4013 .tdls_mgmt = ieee80211_tdls_mgmt, 4014 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4015 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4016 .probe_client = ieee80211_probe_client, 4017 .set_noack_map = ieee80211_set_noack_map, 4018 #ifdef CONFIG_PM 4019 .set_wakeup = ieee80211_set_wakeup, 4020 #endif 4021 .get_channel = ieee80211_cfg_get_channel, 4022 .start_radar_detection = ieee80211_start_radar_detection, 4023 .channel_switch = ieee80211_channel_switch, 4024 .set_qos_map = ieee80211_set_qos_map, 4025 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4026 .add_tx_ts = ieee80211_add_tx_ts, 4027 .del_tx_ts = ieee80211_del_tx_ts, 4028 .start_nan = ieee80211_start_nan, 4029 .stop_nan = ieee80211_stop_nan, 4030 .nan_change_conf = ieee80211_nan_change_conf, 4031 .add_nan_func = ieee80211_add_nan_func, 4032 .del_nan_func = ieee80211_del_nan_func, 4033 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4034 .tx_control_port = ieee80211_tx_control_port, 4035 .get_txq_stats = ieee80211_get_txq_stats, 4036 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4037 .start_pmsr = ieee80211_start_pmsr, 4038 .abort_pmsr = ieee80211_abort_pmsr, 4039 .probe_mesh_link = ieee80211_probe_mesh_link, 4040 }; 4041