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 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/if_ether.h> 18 #include <net/cfg80211.h> 19 #include "ieee80211_i.h" 20 #include "driver-ops.h" 21 #include "rate.h" 22 #include "mesh.h" 23 #include "wme.h" 24 25 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 26 struct vif_params *params) 27 { 28 bool mu_mimo_groups = false; 29 bool mu_mimo_follow = false; 30 31 if (params->vht_mumimo_groups) { 32 u64 membership; 33 34 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 35 36 memcpy(sdata->vif.bss_conf.mu_group.membership, 37 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 38 memcpy(sdata->vif.bss_conf.mu_group.position, 39 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 40 WLAN_USER_POSITION_LEN); 41 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 42 /* don't care about endianness - just check for 0 */ 43 memcpy(&membership, params->vht_mumimo_groups, 44 WLAN_MEMBERSHIP_LEN); 45 mu_mimo_groups = membership != 0; 46 } 47 48 if (params->vht_mumimo_follow_addr) { 49 mu_mimo_follow = 50 is_valid_ether_addr(params->vht_mumimo_follow_addr); 51 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 52 params->vht_mumimo_follow_addr); 53 } 54 55 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 56 } 57 58 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 59 struct vif_params *params) 60 { 61 struct ieee80211_local *local = sdata->local; 62 struct ieee80211_sub_if_data *monitor_sdata; 63 64 /* check flags first */ 65 if (params->flags && ieee80211_sdata_running(sdata)) { 66 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 67 68 /* 69 * Prohibit MONITOR_FLAG_COOK_FRAMES and 70 * MONITOR_FLAG_ACTIVE to be changed while the 71 * interface is up. 72 * Else we would need to add a lot of cruft 73 * to update everything: 74 * cooked_mntrs, monitor and all fif_* counters 75 * reconfigure hardware 76 */ 77 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 78 return -EBUSY; 79 } 80 81 /* also validate MU-MIMO change */ 82 monitor_sdata = rtnl_dereference(local->monitor_sdata); 83 84 if (!monitor_sdata && 85 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 86 return -EOPNOTSUPP; 87 88 /* apply all changes now - no failures allowed */ 89 90 if (monitor_sdata) 91 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 92 93 if (params->flags) { 94 if (ieee80211_sdata_running(sdata)) { 95 ieee80211_adjust_monitor_flags(sdata, -1); 96 sdata->u.mntr.flags = params->flags; 97 ieee80211_adjust_monitor_flags(sdata, 1); 98 99 ieee80211_configure_filter(local); 100 } else { 101 /* 102 * Because the interface is down, ieee80211_do_stop 103 * and ieee80211_do_open take care of "everything" 104 * mentioned in the comment above. 105 */ 106 sdata->u.mntr.flags = params->flags; 107 } 108 } 109 110 return 0; 111 } 112 113 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 114 const char *name, 115 unsigned char name_assign_type, 116 enum nl80211_iftype type, 117 struct vif_params *params) 118 { 119 struct ieee80211_local *local = wiphy_priv(wiphy); 120 struct wireless_dev *wdev; 121 struct ieee80211_sub_if_data *sdata; 122 int err; 123 124 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 125 if (err) 126 return ERR_PTR(err); 127 128 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 129 130 if (type == NL80211_IFTYPE_MONITOR) { 131 err = ieee80211_set_mon_options(sdata, params); 132 if (err) { 133 ieee80211_if_remove(sdata); 134 return NULL; 135 } 136 } 137 138 return wdev; 139 } 140 141 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 142 { 143 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 144 145 return 0; 146 } 147 148 static int ieee80211_change_iface(struct wiphy *wiphy, 149 struct net_device *dev, 150 enum nl80211_iftype type, 151 struct vif_params *params) 152 { 153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 154 int ret; 155 156 ret = ieee80211_if_change_type(sdata, type); 157 if (ret) 158 return ret; 159 160 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 161 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 162 ieee80211_check_fast_rx_iface(sdata); 163 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 164 sdata->u.mgd.use_4addr = params->use_4addr; 165 } 166 167 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 168 ret = ieee80211_set_mon_options(sdata, params); 169 if (ret) 170 return ret; 171 } 172 173 return 0; 174 } 175 176 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 177 struct wireless_dev *wdev) 178 { 179 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 180 int ret; 181 182 mutex_lock(&sdata->local->chanctx_mtx); 183 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 184 mutex_unlock(&sdata->local->chanctx_mtx); 185 if (ret < 0) 186 return ret; 187 188 return ieee80211_do_open(wdev, true); 189 } 190 191 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 192 struct wireless_dev *wdev) 193 { 194 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 195 } 196 197 static int ieee80211_start_nan(struct wiphy *wiphy, 198 struct wireless_dev *wdev, 199 struct cfg80211_nan_conf *conf) 200 { 201 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 202 int ret; 203 204 mutex_lock(&sdata->local->chanctx_mtx); 205 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 206 mutex_unlock(&sdata->local->chanctx_mtx); 207 if (ret < 0) 208 return ret; 209 210 ret = ieee80211_do_open(wdev, true); 211 if (ret) 212 return ret; 213 214 ret = drv_start_nan(sdata->local, sdata, conf); 215 if (ret) 216 ieee80211_sdata_stop(sdata); 217 218 sdata->u.nan.conf = *conf; 219 220 return ret; 221 } 222 223 static void ieee80211_stop_nan(struct wiphy *wiphy, 224 struct wireless_dev *wdev) 225 { 226 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 227 228 drv_stop_nan(sdata->local, sdata); 229 ieee80211_sdata_stop(sdata); 230 } 231 232 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 233 struct wireless_dev *wdev, 234 struct cfg80211_nan_conf *conf, 235 u32 changes) 236 { 237 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 238 struct cfg80211_nan_conf new_conf; 239 int ret = 0; 240 241 if (sdata->vif.type != NL80211_IFTYPE_NAN) 242 return -EOPNOTSUPP; 243 244 if (!ieee80211_sdata_running(sdata)) 245 return -ENETDOWN; 246 247 new_conf = sdata->u.nan.conf; 248 249 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 250 new_conf.master_pref = conf->master_pref; 251 252 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 253 new_conf.bands = conf->bands; 254 255 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 256 if (!ret) 257 sdata->u.nan.conf = new_conf; 258 259 return ret; 260 } 261 262 static int ieee80211_add_nan_func(struct wiphy *wiphy, 263 struct wireless_dev *wdev, 264 struct cfg80211_nan_func *nan_func) 265 { 266 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 267 int ret; 268 269 if (sdata->vif.type != NL80211_IFTYPE_NAN) 270 return -EOPNOTSUPP; 271 272 if (!ieee80211_sdata_running(sdata)) 273 return -ENETDOWN; 274 275 spin_lock_bh(&sdata->u.nan.func_lock); 276 277 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 278 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 279 GFP_ATOMIC); 280 spin_unlock_bh(&sdata->u.nan.func_lock); 281 282 if (ret < 0) 283 return ret; 284 285 nan_func->instance_id = ret; 286 287 WARN_ON(nan_func->instance_id == 0); 288 289 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 290 if (ret) { 291 spin_lock_bh(&sdata->u.nan.func_lock); 292 idr_remove(&sdata->u.nan.function_inst_ids, 293 nan_func->instance_id); 294 spin_unlock_bh(&sdata->u.nan.func_lock); 295 } 296 297 return ret; 298 } 299 300 static struct cfg80211_nan_func * 301 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 302 u64 cookie) 303 { 304 struct cfg80211_nan_func *func; 305 int id; 306 307 lockdep_assert_held(&sdata->u.nan.func_lock); 308 309 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 310 if (func->cookie == cookie) 311 return func; 312 } 313 314 return NULL; 315 } 316 317 static void ieee80211_del_nan_func(struct wiphy *wiphy, 318 struct wireless_dev *wdev, u64 cookie) 319 { 320 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 321 struct cfg80211_nan_func *func; 322 u8 instance_id = 0; 323 324 if (sdata->vif.type != NL80211_IFTYPE_NAN || 325 !ieee80211_sdata_running(sdata)) 326 return; 327 328 spin_lock_bh(&sdata->u.nan.func_lock); 329 330 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 331 if (func) 332 instance_id = func->instance_id; 333 334 spin_unlock_bh(&sdata->u.nan.func_lock); 335 336 if (instance_id) 337 drv_del_nan_func(sdata->local, sdata, instance_id); 338 } 339 340 static int ieee80211_set_noack_map(struct wiphy *wiphy, 341 struct net_device *dev, 342 u16 noack_map) 343 { 344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 345 346 sdata->noack_map = noack_map; 347 348 ieee80211_check_fast_xmit_iface(sdata); 349 350 return 0; 351 } 352 353 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 354 const u8 *mac_addr, u8 key_idx) 355 { 356 struct ieee80211_local *local = sdata->local; 357 struct ieee80211_key *key; 358 struct sta_info *sta; 359 int ret = -EINVAL; 360 361 if (!wiphy_ext_feature_isset(local->hw.wiphy, 362 NL80211_EXT_FEATURE_EXT_KEY_ID)) 363 return -EINVAL; 364 365 sta = sta_info_get_bss(sdata, mac_addr); 366 367 if (!sta) 368 return -EINVAL; 369 370 if (sta->ptk_idx == key_idx) 371 return 0; 372 373 mutex_lock(&local->key_mtx); 374 key = key_mtx_dereference(local, sta->ptk[key_idx]); 375 376 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 377 ret = ieee80211_set_tx_key(key); 378 379 mutex_unlock(&local->key_mtx); 380 return ret; 381 } 382 383 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 384 u8 key_idx, bool pairwise, const u8 *mac_addr, 385 struct key_params *params) 386 { 387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 388 struct ieee80211_local *local = sdata->local; 389 struct sta_info *sta = NULL; 390 const struct ieee80211_cipher_scheme *cs = NULL; 391 struct ieee80211_key *key; 392 int err; 393 394 if (!ieee80211_sdata_running(sdata)) 395 return -ENETDOWN; 396 397 if (pairwise && params->mode == NL80211_KEY_SET_TX) 398 return ieee80211_set_tx(sdata, mac_addr, key_idx); 399 400 /* reject WEP and TKIP keys if WEP failed to initialize */ 401 switch (params->cipher) { 402 case WLAN_CIPHER_SUITE_WEP40: 403 case WLAN_CIPHER_SUITE_TKIP: 404 case WLAN_CIPHER_SUITE_WEP104: 405 if (IS_ERR(local->wep_tx_tfm)) 406 return -EINVAL; 407 break; 408 case WLAN_CIPHER_SUITE_CCMP: 409 case WLAN_CIPHER_SUITE_CCMP_256: 410 case WLAN_CIPHER_SUITE_AES_CMAC: 411 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 412 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 414 case WLAN_CIPHER_SUITE_GCMP: 415 case WLAN_CIPHER_SUITE_GCMP_256: 416 break; 417 default: 418 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 419 break; 420 } 421 422 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 423 params->key, params->seq_len, params->seq, 424 cs); 425 if (IS_ERR(key)) 426 return PTR_ERR(key); 427 428 if (pairwise) 429 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 430 431 if (params->mode == NL80211_KEY_NO_TX) 432 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 433 434 mutex_lock(&local->sta_mtx); 435 436 if (mac_addr) { 437 sta = sta_info_get_bss(sdata, mac_addr); 438 /* 439 * The ASSOC test makes sure the driver is ready to 440 * receive the key. When wpa_supplicant has roamed 441 * using FT, it attempts to set the key before 442 * association has completed, this rejects that attempt 443 * so it will set the key again after association. 444 * 445 * TODO: accept the key if we have a station entry and 446 * add it to the device after the station. 447 */ 448 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 449 ieee80211_key_free_unused(key); 450 err = -ENOENT; 451 goto out_unlock; 452 } 453 } 454 455 switch (sdata->vif.type) { 456 case NL80211_IFTYPE_STATION: 457 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 458 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 459 break; 460 case NL80211_IFTYPE_AP: 461 case NL80211_IFTYPE_AP_VLAN: 462 /* Keys without a station are used for TX only */ 463 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 464 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 465 break; 466 case NL80211_IFTYPE_ADHOC: 467 /* no MFP (yet) */ 468 break; 469 case NL80211_IFTYPE_MESH_POINT: 470 #ifdef CONFIG_MAC80211_MESH 471 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 472 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 473 break; 474 #endif 475 case NL80211_IFTYPE_WDS: 476 case NL80211_IFTYPE_MONITOR: 477 case NL80211_IFTYPE_P2P_DEVICE: 478 case NL80211_IFTYPE_NAN: 479 case NL80211_IFTYPE_UNSPECIFIED: 480 case NUM_NL80211_IFTYPES: 481 case NL80211_IFTYPE_P2P_CLIENT: 482 case NL80211_IFTYPE_P2P_GO: 483 case NL80211_IFTYPE_OCB: 484 /* shouldn't happen */ 485 WARN_ON_ONCE(1); 486 break; 487 } 488 489 if (sta) 490 sta->cipher_scheme = cs; 491 492 err = ieee80211_key_link(key, sdata, sta); 493 494 out_unlock: 495 mutex_unlock(&local->sta_mtx); 496 497 return err; 498 } 499 500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 501 u8 key_idx, bool pairwise, const u8 *mac_addr) 502 { 503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 504 struct ieee80211_local *local = sdata->local; 505 struct sta_info *sta; 506 struct ieee80211_key *key = NULL; 507 int ret; 508 509 mutex_lock(&local->sta_mtx); 510 mutex_lock(&local->key_mtx); 511 512 if (mac_addr) { 513 ret = -ENOENT; 514 515 sta = sta_info_get_bss(sdata, mac_addr); 516 if (!sta) 517 goto out_unlock; 518 519 if (pairwise) 520 key = key_mtx_dereference(local, sta->ptk[key_idx]); 521 else 522 key = key_mtx_dereference(local, sta->gtk[key_idx]); 523 } else 524 key = key_mtx_dereference(local, sdata->keys[key_idx]); 525 526 if (!key) { 527 ret = -ENOENT; 528 goto out_unlock; 529 } 530 531 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 532 533 ret = 0; 534 out_unlock: 535 mutex_unlock(&local->key_mtx); 536 mutex_unlock(&local->sta_mtx); 537 538 return ret; 539 } 540 541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 542 u8 key_idx, bool pairwise, const u8 *mac_addr, 543 void *cookie, 544 void (*callback)(void *cookie, 545 struct key_params *params)) 546 { 547 struct ieee80211_sub_if_data *sdata; 548 struct sta_info *sta = NULL; 549 u8 seq[6] = {0}; 550 struct key_params params; 551 struct ieee80211_key *key = NULL; 552 u64 pn64; 553 u32 iv32; 554 u16 iv16; 555 int err = -ENOENT; 556 struct ieee80211_key_seq kseq = {}; 557 558 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 559 560 rcu_read_lock(); 561 562 if (mac_addr) { 563 sta = sta_info_get_bss(sdata, mac_addr); 564 if (!sta) 565 goto out; 566 567 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 568 key = rcu_dereference(sta->ptk[key_idx]); 569 else if (!pairwise && 570 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 571 key = rcu_dereference(sta->gtk[key_idx]); 572 } else 573 key = rcu_dereference(sdata->keys[key_idx]); 574 575 if (!key) 576 goto out; 577 578 memset(¶ms, 0, sizeof(params)); 579 580 params.cipher = key->conf.cipher; 581 582 switch (key->conf.cipher) { 583 case WLAN_CIPHER_SUITE_TKIP: 584 pn64 = atomic64_read(&key->conf.tx_pn); 585 iv32 = TKIP_PN_TO_IV32(pn64); 586 iv16 = TKIP_PN_TO_IV16(pn64); 587 588 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 589 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 590 drv_get_key_seq(sdata->local, key, &kseq); 591 iv32 = kseq.tkip.iv32; 592 iv16 = kseq.tkip.iv16; 593 } 594 595 seq[0] = iv16 & 0xff; 596 seq[1] = (iv16 >> 8) & 0xff; 597 seq[2] = iv32 & 0xff; 598 seq[3] = (iv32 >> 8) & 0xff; 599 seq[4] = (iv32 >> 16) & 0xff; 600 seq[5] = (iv32 >> 24) & 0xff; 601 params.seq = seq; 602 params.seq_len = 6; 603 break; 604 case WLAN_CIPHER_SUITE_CCMP: 605 case WLAN_CIPHER_SUITE_CCMP_256: 606 case WLAN_CIPHER_SUITE_AES_CMAC: 607 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 608 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 609 offsetof(typeof(kseq), aes_cmac)); 610 /* fall through */ 611 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 612 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 613 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 614 offsetof(typeof(kseq), aes_gmac)); 615 /* fall through */ 616 case WLAN_CIPHER_SUITE_GCMP: 617 case WLAN_CIPHER_SUITE_GCMP_256: 618 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 619 offsetof(typeof(kseq), gcmp)); 620 621 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 622 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 623 drv_get_key_seq(sdata->local, key, &kseq); 624 memcpy(seq, kseq.ccmp.pn, 6); 625 } else { 626 pn64 = atomic64_read(&key->conf.tx_pn); 627 seq[0] = pn64; 628 seq[1] = pn64 >> 8; 629 seq[2] = pn64 >> 16; 630 seq[3] = pn64 >> 24; 631 seq[4] = pn64 >> 32; 632 seq[5] = pn64 >> 40; 633 } 634 params.seq = seq; 635 params.seq_len = 6; 636 break; 637 default: 638 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 639 break; 640 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 641 break; 642 drv_get_key_seq(sdata->local, key, &kseq); 643 params.seq = kseq.hw.seq; 644 params.seq_len = kseq.hw.seq_len; 645 break; 646 } 647 648 params.key = key->conf.key; 649 params.key_len = key->conf.keylen; 650 651 callback(cookie, ¶ms); 652 err = 0; 653 654 out: 655 rcu_read_unlock(); 656 return err; 657 } 658 659 static int ieee80211_config_default_key(struct wiphy *wiphy, 660 struct net_device *dev, 661 u8 key_idx, bool uni, 662 bool multi) 663 { 664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 665 666 ieee80211_set_default_key(sdata, key_idx, uni, multi); 667 668 return 0; 669 } 670 671 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 672 struct net_device *dev, 673 u8 key_idx) 674 { 675 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 676 677 ieee80211_set_default_mgmt_key(sdata, key_idx); 678 679 return 0; 680 } 681 682 void sta_set_rate_info_tx(struct sta_info *sta, 683 const struct ieee80211_tx_rate *rate, 684 struct rate_info *rinfo) 685 { 686 rinfo->flags = 0; 687 if (rate->flags & IEEE80211_TX_RC_MCS) { 688 rinfo->flags |= RATE_INFO_FLAGS_MCS; 689 rinfo->mcs = rate->idx; 690 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 691 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 692 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 693 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 694 } else { 695 struct ieee80211_supported_band *sband; 696 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 697 u16 brate; 698 699 sband = ieee80211_get_sband(sta->sdata); 700 if (sband) { 701 brate = sband->bitrates[rate->idx].bitrate; 702 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 703 } 704 } 705 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 706 rinfo->bw = RATE_INFO_BW_40; 707 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 708 rinfo->bw = RATE_INFO_BW_80; 709 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 710 rinfo->bw = RATE_INFO_BW_160; 711 else 712 rinfo->bw = RATE_INFO_BW_20; 713 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 714 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 715 } 716 717 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 718 int idx, u8 *mac, struct station_info *sinfo) 719 { 720 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 721 struct ieee80211_local *local = sdata->local; 722 struct sta_info *sta; 723 int ret = -ENOENT; 724 725 mutex_lock(&local->sta_mtx); 726 727 sta = sta_info_get_by_idx(sdata, idx); 728 if (sta) { 729 ret = 0; 730 memcpy(mac, sta->sta.addr, ETH_ALEN); 731 sta_set_sinfo(sta, sinfo, true); 732 } 733 734 mutex_unlock(&local->sta_mtx); 735 736 return ret; 737 } 738 739 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 740 int idx, struct survey_info *survey) 741 { 742 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 743 744 return drv_get_survey(local, idx, survey); 745 } 746 747 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 748 const u8 *mac, struct station_info *sinfo) 749 { 750 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 751 struct ieee80211_local *local = sdata->local; 752 struct sta_info *sta; 753 int ret = -ENOENT; 754 755 mutex_lock(&local->sta_mtx); 756 757 sta = sta_info_get_bss(sdata, mac); 758 if (sta) { 759 ret = 0; 760 sta_set_sinfo(sta, sinfo, true); 761 } 762 763 mutex_unlock(&local->sta_mtx); 764 765 return ret; 766 } 767 768 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 769 struct cfg80211_chan_def *chandef) 770 { 771 struct ieee80211_local *local = wiphy_priv(wiphy); 772 struct ieee80211_sub_if_data *sdata; 773 int ret = 0; 774 775 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 776 return 0; 777 778 mutex_lock(&local->mtx); 779 if (local->use_chanctx) { 780 sdata = rtnl_dereference(local->monitor_sdata); 781 if (sdata) { 782 ieee80211_vif_release_channel(sdata); 783 ret = ieee80211_vif_use_channel(sdata, chandef, 784 IEEE80211_CHANCTX_EXCLUSIVE); 785 } 786 } else if (local->open_count == local->monitors) { 787 local->_oper_chandef = *chandef; 788 ieee80211_hw_config(local, 0); 789 } 790 791 if (ret == 0) 792 local->monitor_chandef = *chandef; 793 mutex_unlock(&local->mtx); 794 795 return ret; 796 } 797 798 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 799 const u8 *resp, size_t resp_len, 800 const struct ieee80211_csa_settings *csa) 801 { 802 struct probe_resp *new, *old; 803 804 if (!resp || !resp_len) 805 return 1; 806 807 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 808 809 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 810 if (!new) 811 return -ENOMEM; 812 813 new->len = resp_len; 814 memcpy(new->data, resp, resp_len); 815 816 if (csa) 817 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 818 csa->n_counter_offsets_presp * 819 sizeof(new->csa_counter_offsets[0])); 820 821 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 822 if (old) 823 kfree_rcu(old, rcu_head); 824 825 return 0; 826 } 827 828 static int ieee80211_set_ftm_responder_params( 829 struct ieee80211_sub_if_data *sdata, 830 const u8 *lci, size_t lci_len, 831 const u8 *civicloc, size_t civicloc_len) 832 { 833 struct ieee80211_ftm_responder_params *new, *old; 834 struct ieee80211_bss_conf *bss_conf; 835 u8 *pos; 836 int len; 837 838 if (!lci_len && !civicloc_len) 839 return 0; 840 841 bss_conf = &sdata->vif.bss_conf; 842 old = bss_conf->ftmr_params; 843 len = lci_len + civicloc_len; 844 845 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 846 if (!new) 847 return -ENOMEM; 848 849 pos = (u8 *)(new + 1); 850 if (lci_len) { 851 new->lci_len = lci_len; 852 new->lci = pos; 853 memcpy(pos, lci, lci_len); 854 pos += lci_len; 855 } 856 857 if (civicloc_len) { 858 new->civicloc_len = civicloc_len; 859 new->civicloc = pos; 860 memcpy(pos, civicloc, civicloc_len); 861 pos += civicloc_len; 862 } 863 864 bss_conf->ftmr_params = new; 865 kfree(old); 866 867 return 0; 868 } 869 870 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 871 struct cfg80211_beacon_data *params, 872 const struct ieee80211_csa_settings *csa) 873 { 874 struct beacon_data *new, *old; 875 int new_head_len, new_tail_len; 876 int size, err; 877 u32 changed = BSS_CHANGED_BEACON; 878 879 old = sdata_dereference(sdata->u.ap.beacon, sdata); 880 881 882 /* Need to have a beacon head if we don't have one yet */ 883 if (!params->head && !old) 884 return -EINVAL; 885 886 /* new or old head? */ 887 if (params->head) 888 new_head_len = params->head_len; 889 else 890 new_head_len = old->head_len; 891 892 /* new or old tail? */ 893 if (params->tail || !old) 894 /* params->tail_len will be zero for !params->tail */ 895 new_tail_len = params->tail_len; 896 else 897 new_tail_len = old->tail_len; 898 899 size = sizeof(*new) + new_head_len + new_tail_len; 900 901 new = kzalloc(size, GFP_KERNEL); 902 if (!new) 903 return -ENOMEM; 904 905 /* start filling the new info now */ 906 907 /* 908 * pointers go into the block we allocated, 909 * memory is | beacon_data | head | tail | 910 */ 911 new->head = ((u8 *) new) + sizeof(*new); 912 new->tail = new->head + new_head_len; 913 new->head_len = new_head_len; 914 new->tail_len = new_tail_len; 915 916 if (csa) { 917 new->csa_current_counter = csa->count; 918 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 919 csa->n_counter_offsets_beacon * 920 sizeof(new->csa_counter_offsets[0])); 921 } 922 923 /* copy in head */ 924 if (params->head) 925 memcpy(new->head, params->head, new_head_len); 926 else 927 memcpy(new->head, old->head, new_head_len); 928 929 /* copy in optional tail */ 930 if (params->tail) 931 memcpy(new->tail, params->tail, new_tail_len); 932 else 933 if (old) 934 memcpy(new->tail, old->tail, new_tail_len); 935 936 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 937 params->probe_resp_len, csa); 938 if (err < 0) 939 return err; 940 if (err == 0) 941 changed |= BSS_CHANGED_AP_PROBE_RESP; 942 943 if (params->ftm_responder != -1) { 944 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 945 err = ieee80211_set_ftm_responder_params(sdata, 946 params->lci, 947 params->lci_len, 948 params->civicloc, 949 params->civicloc_len); 950 951 if (err < 0) 952 return err; 953 954 changed |= BSS_CHANGED_FTM_RESPONDER; 955 } 956 957 rcu_assign_pointer(sdata->u.ap.beacon, new); 958 959 if (old) 960 kfree_rcu(old, rcu_head); 961 962 return changed; 963 } 964 965 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 966 struct cfg80211_ap_settings *params) 967 { 968 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 969 struct ieee80211_local *local = sdata->local; 970 struct beacon_data *old; 971 struct ieee80211_sub_if_data *vlan; 972 u32 changed = BSS_CHANGED_BEACON_INT | 973 BSS_CHANGED_BEACON_ENABLED | 974 BSS_CHANGED_BEACON | 975 BSS_CHANGED_SSID | 976 BSS_CHANGED_P2P_PS | 977 BSS_CHANGED_TXPOWER; 978 int err; 979 int prev_beacon_int; 980 981 old = sdata_dereference(sdata->u.ap.beacon, sdata); 982 if (old) 983 return -EALREADY; 984 985 switch (params->smps_mode) { 986 case NL80211_SMPS_OFF: 987 sdata->smps_mode = IEEE80211_SMPS_OFF; 988 break; 989 case NL80211_SMPS_STATIC: 990 sdata->smps_mode = IEEE80211_SMPS_STATIC; 991 break; 992 case NL80211_SMPS_DYNAMIC: 993 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 994 break; 995 default: 996 return -EINVAL; 997 } 998 sdata->u.ap.req_smps = sdata->smps_mode; 999 1000 sdata->needed_rx_chains = sdata->local->rx_chains; 1001 1002 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1003 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1004 1005 if (params->he_cap) 1006 sdata->vif.bss_conf.he_support = true; 1007 1008 mutex_lock(&local->mtx); 1009 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1010 IEEE80211_CHANCTX_SHARED); 1011 if (!err) 1012 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1013 mutex_unlock(&local->mtx); 1014 if (err) { 1015 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1016 return err; 1017 } 1018 1019 /* 1020 * Apply control port protocol, this allows us to 1021 * not encrypt dynamic WEP control frames. 1022 */ 1023 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1024 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1025 sdata->control_port_over_nl80211 = 1026 params->crypto.control_port_over_nl80211; 1027 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1028 ¶ms->crypto, 1029 sdata->vif.type); 1030 1031 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1032 vlan->control_port_protocol = 1033 params->crypto.control_port_ethertype; 1034 vlan->control_port_no_encrypt = 1035 params->crypto.control_port_no_encrypt; 1036 vlan->control_port_over_nl80211 = 1037 params->crypto.control_port_over_nl80211; 1038 vlan->encrypt_headroom = 1039 ieee80211_cs_headroom(sdata->local, 1040 ¶ms->crypto, 1041 vlan->vif.type); 1042 } 1043 1044 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1045 sdata->vif.bss_conf.enable_beacon = true; 1046 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1047 1048 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1049 if (params->ssid_len) 1050 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1051 params->ssid_len); 1052 sdata->vif.bss_conf.hidden_ssid = 1053 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1054 1055 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1056 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1057 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1058 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1059 if (params->p2p_opp_ps) 1060 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1061 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1062 1063 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1064 if (err < 0) { 1065 ieee80211_vif_release_channel(sdata); 1066 return err; 1067 } 1068 changed |= err; 1069 1070 err = drv_start_ap(sdata->local, sdata); 1071 if (err) { 1072 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1073 1074 if (old) 1075 kfree_rcu(old, rcu_head); 1076 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1077 ieee80211_vif_release_channel(sdata); 1078 return err; 1079 } 1080 1081 ieee80211_recalc_dtim(local, sdata); 1082 ieee80211_bss_info_change_notify(sdata, changed); 1083 1084 netif_carrier_on(dev); 1085 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1086 netif_carrier_on(vlan->dev); 1087 1088 return 0; 1089 } 1090 1091 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1092 struct cfg80211_beacon_data *params) 1093 { 1094 struct ieee80211_sub_if_data *sdata; 1095 struct beacon_data *old; 1096 int err; 1097 1098 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1099 sdata_assert_lock(sdata); 1100 1101 /* don't allow changing the beacon while CSA is in place - offset 1102 * of channel switch counter may change 1103 */ 1104 if (sdata->vif.csa_active) 1105 return -EBUSY; 1106 1107 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1108 if (!old) 1109 return -ENOENT; 1110 1111 err = ieee80211_assign_beacon(sdata, params, NULL); 1112 if (err < 0) 1113 return err; 1114 ieee80211_bss_info_change_notify(sdata, err); 1115 return 0; 1116 } 1117 1118 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1119 { 1120 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1121 struct ieee80211_sub_if_data *vlan; 1122 struct ieee80211_local *local = sdata->local; 1123 struct beacon_data *old_beacon; 1124 struct probe_resp *old_probe_resp; 1125 struct cfg80211_chan_def chandef; 1126 1127 sdata_assert_lock(sdata); 1128 1129 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1130 if (!old_beacon) 1131 return -ENOENT; 1132 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1133 1134 /* abort any running channel switch */ 1135 mutex_lock(&local->mtx); 1136 sdata->vif.csa_active = false; 1137 if (sdata->csa_block_tx) { 1138 ieee80211_wake_vif_queues(local, sdata, 1139 IEEE80211_QUEUE_STOP_REASON_CSA); 1140 sdata->csa_block_tx = false; 1141 } 1142 1143 mutex_unlock(&local->mtx); 1144 1145 kfree(sdata->u.ap.next_beacon); 1146 sdata->u.ap.next_beacon = NULL; 1147 1148 /* turn off carrier for this interface and dependent VLANs */ 1149 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1150 netif_carrier_off(vlan->dev); 1151 netif_carrier_off(dev); 1152 1153 /* remove beacon and probe response */ 1154 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1155 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1156 kfree_rcu(old_beacon, rcu_head); 1157 if (old_probe_resp) 1158 kfree_rcu(old_probe_resp, rcu_head); 1159 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1160 1161 kfree(sdata->vif.bss_conf.ftmr_params); 1162 sdata->vif.bss_conf.ftmr_params = NULL; 1163 1164 __sta_info_flush(sdata, true); 1165 ieee80211_free_keys(sdata, true); 1166 1167 sdata->vif.bss_conf.enable_beacon = false; 1168 sdata->vif.bss_conf.ssid_len = 0; 1169 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1170 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1171 1172 if (sdata->wdev.cac_started) { 1173 chandef = sdata->vif.bss_conf.chandef; 1174 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1175 cfg80211_cac_event(sdata->dev, &chandef, 1176 NL80211_RADAR_CAC_ABORTED, 1177 GFP_KERNEL); 1178 } 1179 1180 drv_stop_ap(sdata->local, sdata); 1181 1182 /* free all potentially still buffered bcast frames */ 1183 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1184 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1185 1186 mutex_lock(&local->mtx); 1187 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1188 ieee80211_vif_release_channel(sdata); 1189 mutex_unlock(&local->mtx); 1190 1191 return 0; 1192 } 1193 1194 static int sta_apply_auth_flags(struct ieee80211_local *local, 1195 struct sta_info *sta, 1196 u32 mask, u32 set) 1197 { 1198 int ret; 1199 1200 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1201 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1202 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1203 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1204 if (ret) 1205 return ret; 1206 } 1207 1208 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1209 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1210 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1211 /* 1212 * When peer becomes associated, init rate control as 1213 * well. Some drivers require rate control initialized 1214 * before drv_sta_state() is called. 1215 */ 1216 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1217 rate_control_rate_init(sta); 1218 1219 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1220 if (ret) 1221 return ret; 1222 } 1223 1224 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1225 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1226 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1227 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1228 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1229 else 1230 ret = 0; 1231 if (ret) 1232 return ret; 1233 } 1234 1235 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1236 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1237 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1238 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1239 if (ret) 1240 return ret; 1241 } 1242 1243 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1244 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1245 test_sta_flag(sta, WLAN_STA_AUTH)) { 1246 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1247 if (ret) 1248 return ret; 1249 } 1250 1251 return 0; 1252 } 1253 1254 static void sta_apply_mesh_params(struct ieee80211_local *local, 1255 struct sta_info *sta, 1256 struct station_parameters *params) 1257 { 1258 #ifdef CONFIG_MAC80211_MESH 1259 struct ieee80211_sub_if_data *sdata = sta->sdata; 1260 u32 changed = 0; 1261 1262 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1263 switch (params->plink_state) { 1264 case NL80211_PLINK_ESTAB: 1265 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1266 changed = mesh_plink_inc_estab_count(sdata); 1267 sta->mesh->plink_state = params->plink_state; 1268 sta->mesh->aid = params->peer_aid; 1269 1270 ieee80211_mps_sta_status_update(sta); 1271 changed |= ieee80211_mps_set_sta_local_pm(sta, 1272 sdata->u.mesh.mshcfg.power_mode); 1273 1274 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1275 /* init at low value */ 1276 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1277 1278 break; 1279 case NL80211_PLINK_LISTEN: 1280 case NL80211_PLINK_BLOCKED: 1281 case NL80211_PLINK_OPN_SNT: 1282 case NL80211_PLINK_OPN_RCVD: 1283 case NL80211_PLINK_CNF_RCVD: 1284 case NL80211_PLINK_HOLDING: 1285 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1286 changed = mesh_plink_dec_estab_count(sdata); 1287 sta->mesh->plink_state = params->plink_state; 1288 1289 ieee80211_mps_sta_status_update(sta); 1290 changed |= ieee80211_mps_set_sta_local_pm(sta, 1291 NL80211_MESH_POWER_UNKNOWN); 1292 break; 1293 default: 1294 /* nothing */ 1295 break; 1296 } 1297 } 1298 1299 switch (params->plink_action) { 1300 case NL80211_PLINK_ACTION_NO_ACTION: 1301 /* nothing */ 1302 break; 1303 case NL80211_PLINK_ACTION_OPEN: 1304 changed |= mesh_plink_open(sta); 1305 break; 1306 case NL80211_PLINK_ACTION_BLOCK: 1307 changed |= mesh_plink_block(sta); 1308 break; 1309 } 1310 1311 if (params->local_pm) 1312 changed |= ieee80211_mps_set_sta_local_pm(sta, 1313 params->local_pm); 1314 1315 ieee80211_mbss_info_change_notify(sdata, changed); 1316 #endif 1317 } 1318 1319 static int sta_apply_parameters(struct ieee80211_local *local, 1320 struct sta_info *sta, 1321 struct station_parameters *params) 1322 { 1323 int ret = 0; 1324 struct ieee80211_supported_band *sband; 1325 struct ieee80211_sub_if_data *sdata = sta->sdata; 1326 u32 mask, set; 1327 1328 sband = ieee80211_get_sband(sdata); 1329 if (!sband) 1330 return -EINVAL; 1331 1332 mask = params->sta_flags_mask; 1333 set = params->sta_flags_set; 1334 1335 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1336 /* 1337 * In mesh mode, ASSOCIATED isn't part of the nl80211 1338 * API but must follow AUTHENTICATED for driver state. 1339 */ 1340 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1341 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1342 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1343 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1344 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1345 /* 1346 * TDLS -- everything follows authorized, but 1347 * only becoming authorized is possible, not 1348 * going back 1349 */ 1350 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1351 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1352 BIT(NL80211_STA_FLAG_ASSOCIATED); 1353 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1354 BIT(NL80211_STA_FLAG_ASSOCIATED); 1355 } 1356 } 1357 1358 if (mask & BIT(NL80211_STA_FLAG_WME) && 1359 local->hw.queues >= IEEE80211_NUM_ACS) 1360 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1361 1362 /* auth flags will be set later for TDLS, 1363 * and for unassociated stations that move to assocaited */ 1364 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1365 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1366 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1367 ret = sta_apply_auth_flags(local, sta, mask, set); 1368 if (ret) 1369 return ret; 1370 } 1371 1372 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1373 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1374 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1375 else 1376 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1377 } 1378 1379 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1380 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1381 if (set & BIT(NL80211_STA_FLAG_MFP)) 1382 set_sta_flag(sta, WLAN_STA_MFP); 1383 else 1384 clear_sta_flag(sta, WLAN_STA_MFP); 1385 } 1386 1387 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1388 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1389 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1390 else 1391 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1392 } 1393 1394 /* mark TDLS channel switch support, if the AP allows it */ 1395 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1396 !sdata->u.mgd.tdls_chan_switch_prohibited && 1397 params->ext_capab_len >= 4 && 1398 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1399 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1400 1401 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1402 !sdata->u.mgd.tdls_wider_bw_prohibited && 1403 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1404 params->ext_capab_len >= 8 && 1405 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1406 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1407 1408 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1409 sta->sta.uapsd_queues = params->uapsd_queues; 1410 sta->sta.max_sp = params->max_sp; 1411 } 1412 1413 /* The sender might not have sent the last bit, consider it to be 0 */ 1414 if (params->ext_capab_len >= 8) { 1415 u8 val = (params->ext_capab[7] & 1416 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1417 1418 /* we did get all the bits, take the MSB as well */ 1419 if (params->ext_capab_len >= 9) { 1420 u8 val_msb = params->ext_capab[8] & 1421 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1422 val_msb <<= 1; 1423 val |= val_msb; 1424 } 1425 1426 switch (val) { 1427 case 1: 1428 sta->sta.max_amsdu_subframes = 32; 1429 break; 1430 case 2: 1431 sta->sta.max_amsdu_subframes = 16; 1432 break; 1433 case 3: 1434 sta->sta.max_amsdu_subframes = 8; 1435 break; 1436 default: 1437 sta->sta.max_amsdu_subframes = 0; 1438 } 1439 } 1440 1441 /* 1442 * cfg80211 validates this (1-2007) and allows setting the AID 1443 * only when creating a new station entry 1444 */ 1445 if (params->aid) 1446 sta->sta.aid = params->aid; 1447 1448 /* 1449 * Some of the following updates would be racy if called on an 1450 * existing station, via ieee80211_change_station(). However, 1451 * all such changes are rejected by cfg80211 except for updates 1452 * changing the supported rates on an existing but not yet used 1453 * TDLS peer. 1454 */ 1455 1456 if (params->listen_interval >= 0) 1457 sta->listen_interval = params->listen_interval; 1458 1459 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1460 sta->sta.txpwr.type = params->txpwr.type; 1461 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1462 sta->sta.txpwr.power = params->txpwr.power; 1463 ret = drv_sta_set_txpwr(local, sdata, sta); 1464 if (ret) 1465 return ret; 1466 } 1467 1468 if (params->supported_rates) { 1469 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1470 sband, params->supported_rates, 1471 params->supported_rates_len, 1472 &sta->sta.supp_rates[sband->band]); 1473 } 1474 1475 if (params->ht_capa) 1476 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1477 params->ht_capa, sta); 1478 1479 /* VHT can override some HT caps such as the A-MSDU max length */ 1480 if (params->vht_capa) 1481 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1482 params->vht_capa, sta); 1483 1484 if (params->he_capa) 1485 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1486 (void *)params->he_capa, 1487 params->he_capa_len, sta); 1488 1489 if (params->opmode_notif_used) { 1490 /* returned value is only needed for rc update, but the 1491 * rc isn't initialized here yet, so ignore it 1492 */ 1493 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1494 sband->band); 1495 } 1496 1497 if (params->support_p2p_ps >= 0) 1498 sta->sta.support_p2p_ps = params->support_p2p_ps; 1499 1500 if (ieee80211_vif_is_mesh(&sdata->vif)) 1501 sta_apply_mesh_params(local, sta, params); 1502 1503 if (params->airtime_weight) 1504 sta->airtime_weight = params->airtime_weight; 1505 1506 /* set the STA state after all sta info from usermode has been set */ 1507 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1508 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1509 ret = sta_apply_auth_flags(local, sta, mask, set); 1510 if (ret) 1511 return ret; 1512 } 1513 1514 return 0; 1515 } 1516 1517 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1518 const u8 *mac, 1519 struct station_parameters *params) 1520 { 1521 struct ieee80211_local *local = wiphy_priv(wiphy); 1522 struct sta_info *sta; 1523 struct ieee80211_sub_if_data *sdata; 1524 int err; 1525 int layer2_update; 1526 1527 if (params->vlan) { 1528 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1529 1530 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1531 sdata->vif.type != NL80211_IFTYPE_AP) 1532 return -EINVAL; 1533 } else 1534 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1535 1536 if (ether_addr_equal(mac, sdata->vif.addr)) 1537 return -EINVAL; 1538 1539 if (is_multicast_ether_addr(mac)) 1540 return -EINVAL; 1541 1542 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1543 if (!sta) 1544 return -ENOMEM; 1545 1546 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1547 sta->sta.tdls = true; 1548 1549 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1550 !sdata->u.mgd.associated) 1551 return -EINVAL; 1552 1553 err = sta_apply_parameters(local, sta, params); 1554 if (err) { 1555 sta_info_free(local, sta); 1556 return err; 1557 } 1558 1559 /* 1560 * for TDLS and for unassociated station, rate control should be 1561 * initialized only when rates are known and station is marked 1562 * authorized/associated 1563 */ 1564 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1565 test_sta_flag(sta, WLAN_STA_ASSOC)) 1566 rate_control_rate_init(sta); 1567 1568 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1569 sdata->vif.type == NL80211_IFTYPE_AP; 1570 1571 err = sta_info_insert_rcu(sta); 1572 if (err) { 1573 rcu_read_unlock(); 1574 return err; 1575 } 1576 1577 if (layer2_update) 1578 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1579 1580 rcu_read_unlock(); 1581 1582 return 0; 1583 } 1584 1585 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1586 struct station_del_parameters *params) 1587 { 1588 struct ieee80211_sub_if_data *sdata; 1589 1590 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1591 1592 if (params->mac) 1593 return sta_info_destroy_addr_bss(sdata, params->mac); 1594 1595 sta_info_flush(sdata); 1596 return 0; 1597 } 1598 1599 static int ieee80211_change_station(struct wiphy *wiphy, 1600 struct net_device *dev, const u8 *mac, 1601 struct station_parameters *params) 1602 { 1603 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1604 struct ieee80211_local *local = wiphy_priv(wiphy); 1605 struct sta_info *sta; 1606 struct ieee80211_sub_if_data *vlansdata; 1607 enum cfg80211_station_type statype; 1608 int err; 1609 1610 mutex_lock(&local->sta_mtx); 1611 1612 sta = sta_info_get_bss(sdata, mac); 1613 if (!sta) { 1614 err = -ENOENT; 1615 goto out_err; 1616 } 1617 1618 switch (sdata->vif.type) { 1619 case NL80211_IFTYPE_MESH_POINT: 1620 if (sdata->u.mesh.user_mpm) 1621 statype = CFG80211_STA_MESH_PEER_USER; 1622 else 1623 statype = CFG80211_STA_MESH_PEER_KERNEL; 1624 break; 1625 case NL80211_IFTYPE_ADHOC: 1626 statype = CFG80211_STA_IBSS; 1627 break; 1628 case NL80211_IFTYPE_STATION: 1629 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1630 statype = CFG80211_STA_AP_STA; 1631 break; 1632 } 1633 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1634 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1635 else 1636 statype = CFG80211_STA_TDLS_PEER_SETUP; 1637 break; 1638 case NL80211_IFTYPE_AP: 1639 case NL80211_IFTYPE_AP_VLAN: 1640 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1641 statype = CFG80211_STA_AP_CLIENT; 1642 else 1643 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1644 break; 1645 default: 1646 err = -EOPNOTSUPP; 1647 goto out_err; 1648 } 1649 1650 err = cfg80211_check_station_change(wiphy, params, statype); 1651 if (err) 1652 goto out_err; 1653 1654 if (params->vlan && params->vlan != sta->sdata->dev) { 1655 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1656 1657 if (params->vlan->ieee80211_ptr->use_4addr) { 1658 if (vlansdata->u.vlan.sta) { 1659 err = -EBUSY; 1660 goto out_err; 1661 } 1662 1663 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1664 __ieee80211_check_fast_rx_iface(vlansdata); 1665 } 1666 1667 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1668 sta->sdata->u.vlan.sta) 1669 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1670 1671 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1672 ieee80211_vif_dec_num_mcast(sta->sdata); 1673 1674 sta->sdata = vlansdata; 1675 ieee80211_check_fast_xmit(sta); 1676 1677 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1678 ieee80211_vif_inc_num_mcast(sta->sdata); 1679 1680 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1681 } 1682 1683 err = sta_apply_parameters(local, sta, params); 1684 if (err) 1685 goto out_err; 1686 1687 mutex_unlock(&local->sta_mtx); 1688 1689 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1690 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1691 sta->known_smps_mode != sta->sdata->bss->req_smps && 1692 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1693 sta_info_tx_streams(sta) != 1) { 1694 ht_dbg(sta->sdata, 1695 "%pM just authorized and MIMO capable - update SMPS\n", 1696 sta->sta.addr); 1697 ieee80211_send_smps_action(sta->sdata, 1698 sta->sdata->bss->req_smps, 1699 sta->sta.addr, 1700 sta->sdata->vif.bss_conf.bssid); 1701 } 1702 1703 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1704 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1705 ieee80211_recalc_ps(local); 1706 ieee80211_recalc_ps_vif(sdata); 1707 } 1708 1709 return 0; 1710 out_err: 1711 mutex_unlock(&local->sta_mtx); 1712 return err; 1713 } 1714 1715 #ifdef CONFIG_MAC80211_MESH 1716 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1717 const u8 *dst, const u8 *next_hop) 1718 { 1719 struct ieee80211_sub_if_data *sdata; 1720 struct mesh_path *mpath; 1721 struct sta_info *sta; 1722 1723 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1724 1725 rcu_read_lock(); 1726 sta = sta_info_get(sdata, next_hop); 1727 if (!sta) { 1728 rcu_read_unlock(); 1729 return -ENOENT; 1730 } 1731 1732 mpath = mesh_path_add(sdata, dst); 1733 if (IS_ERR(mpath)) { 1734 rcu_read_unlock(); 1735 return PTR_ERR(mpath); 1736 } 1737 1738 mesh_path_fix_nexthop(mpath, sta); 1739 1740 rcu_read_unlock(); 1741 return 0; 1742 } 1743 1744 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1745 const u8 *dst) 1746 { 1747 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1748 1749 if (dst) 1750 return mesh_path_del(sdata, dst); 1751 1752 mesh_path_flush_by_iface(sdata); 1753 return 0; 1754 } 1755 1756 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1757 const u8 *dst, const u8 *next_hop) 1758 { 1759 struct ieee80211_sub_if_data *sdata; 1760 struct mesh_path *mpath; 1761 struct sta_info *sta; 1762 1763 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1764 1765 rcu_read_lock(); 1766 1767 sta = sta_info_get(sdata, next_hop); 1768 if (!sta) { 1769 rcu_read_unlock(); 1770 return -ENOENT; 1771 } 1772 1773 mpath = mesh_path_lookup(sdata, dst); 1774 if (!mpath) { 1775 rcu_read_unlock(); 1776 return -ENOENT; 1777 } 1778 1779 mesh_path_fix_nexthop(mpath, sta); 1780 1781 rcu_read_unlock(); 1782 return 0; 1783 } 1784 1785 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1786 struct mpath_info *pinfo) 1787 { 1788 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1789 1790 if (next_hop_sta) 1791 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1792 else 1793 eth_zero_addr(next_hop); 1794 1795 memset(pinfo, 0, sizeof(*pinfo)); 1796 1797 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1798 1799 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1800 MPATH_INFO_SN | 1801 MPATH_INFO_METRIC | 1802 MPATH_INFO_EXPTIME | 1803 MPATH_INFO_DISCOVERY_TIMEOUT | 1804 MPATH_INFO_DISCOVERY_RETRIES | 1805 MPATH_INFO_FLAGS | 1806 MPATH_INFO_HOP_COUNT | 1807 MPATH_INFO_PATH_CHANGE; 1808 1809 pinfo->frame_qlen = mpath->frame_queue.qlen; 1810 pinfo->sn = mpath->sn; 1811 pinfo->metric = mpath->metric; 1812 if (time_before(jiffies, mpath->exp_time)) 1813 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1814 pinfo->discovery_timeout = 1815 jiffies_to_msecs(mpath->discovery_timeout); 1816 pinfo->discovery_retries = mpath->discovery_retries; 1817 if (mpath->flags & MESH_PATH_ACTIVE) 1818 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1819 if (mpath->flags & MESH_PATH_RESOLVING) 1820 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1821 if (mpath->flags & MESH_PATH_SN_VALID) 1822 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1823 if (mpath->flags & MESH_PATH_FIXED) 1824 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1825 if (mpath->flags & MESH_PATH_RESOLVED) 1826 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1827 pinfo->hop_count = mpath->hop_count; 1828 pinfo->path_change_count = mpath->path_change_count; 1829 } 1830 1831 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1832 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1833 1834 { 1835 struct ieee80211_sub_if_data *sdata; 1836 struct mesh_path *mpath; 1837 1838 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1839 1840 rcu_read_lock(); 1841 mpath = mesh_path_lookup(sdata, dst); 1842 if (!mpath) { 1843 rcu_read_unlock(); 1844 return -ENOENT; 1845 } 1846 memcpy(dst, mpath->dst, ETH_ALEN); 1847 mpath_set_pinfo(mpath, next_hop, pinfo); 1848 rcu_read_unlock(); 1849 return 0; 1850 } 1851 1852 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1853 int idx, u8 *dst, u8 *next_hop, 1854 struct mpath_info *pinfo) 1855 { 1856 struct ieee80211_sub_if_data *sdata; 1857 struct mesh_path *mpath; 1858 1859 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1860 1861 rcu_read_lock(); 1862 mpath = mesh_path_lookup_by_idx(sdata, idx); 1863 if (!mpath) { 1864 rcu_read_unlock(); 1865 return -ENOENT; 1866 } 1867 memcpy(dst, mpath->dst, ETH_ALEN); 1868 mpath_set_pinfo(mpath, next_hop, pinfo); 1869 rcu_read_unlock(); 1870 return 0; 1871 } 1872 1873 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1874 struct mpath_info *pinfo) 1875 { 1876 memset(pinfo, 0, sizeof(*pinfo)); 1877 memcpy(mpp, mpath->mpp, ETH_ALEN); 1878 1879 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1880 } 1881 1882 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1883 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1884 1885 { 1886 struct ieee80211_sub_if_data *sdata; 1887 struct mesh_path *mpath; 1888 1889 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1890 1891 rcu_read_lock(); 1892 mpath = mpp_path_lookup(sdata, dst); 1893 if (!mpath) { 1894 rcu_read_unlock(); 1895 return -ENOENT; 1896 } 1897 memcpy(dst, mpath->dst, ETH_ALEN); 1898 mpp_set_pinfo(mpath, mpp, pinfo); 1899 rcu_read_unlock(); 1900 return 0; 1901 } 1902 1903 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1904 int idx, u8 *dst, u8 *mpp, 1905 struct mpath_info *pinfo) 1906 { 1907 struct ieee80211_sub_if_data *sdata; 1908 struct mesh_path *mpath; 1909 1910 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1911 1912 rcu_read_lock(); 1913 mpath = mpp_path_lookup_by_idx(sdata, idx); 1914 if (!mpath) { 1915 rcu_read_unlock(); 1916 return -ENOENT; 1917 } 1918 memcpy(dst, mpath->dst, ETH_ALEN); 1919 mpp_set_pinfo(mpath, mpp, pinfo); 1920 rcu_read_unlock(); 1921 return 0; 1922 } 1923 1924 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1925 struct net_device *dev, 1926 struct mesh_config *conf) 1927 { 1928 struct ieee80211_sub_if_data *sdata; 1929 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1930 1931 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1932 return 0; 1933 } 1934 1935 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1936 { 1937 return (mask >> (parm-1)) & 0x1; 1938 } 1939 1940 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1941 const struct mesh_setup *setup) 1942 { 1943 u8 *new_ie; 1944 const u8 *old_ie; 1945 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1946 struct ieee80211_sub_if_data, u.mesh); 1947 1948 /* allocate information elements */ 1949 new_ie = NULL; 1950 old_ie = ifmsh->ie; 1951 1952 if (setup->ie_len) { 1953 new_ie = kmemdup(setup->ie, setup->ie_len, 1954 GFP_KERNEL); 1955 if (!new_ie) 1956 return -ENOMEM; 1957 } 1958 ifmsh->ie_len = setup->ie_len; 1959 ifmsh->ie = new_ie; 1960 kfree(old_ie); 1961 1962 /* now copy the rest of the setup parameters */ 1963 ifmsh->mesh_id_len = setup->mesh_id_len; 1964 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1965 ifmsh->mesh_sp_id = setup->sync_method; 1966 ifmsh->mesh_pp_id = setup->path_sel_proto; 1967 ifmsh->mesh_pm_id = setup->path_metric; 1968 ifmsh->user_mpm = setup->user_mpm; 1969 ifmsh->mesh_auth_id = setup->auth_id; 1970 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1971 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1972 if (setup->is_authenticated) 1973 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1974 if (setup->is_secure) 1975 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1976 1977 /* mcast rate setting in Mesh Node */ 1978 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1979 sizeof(setup->mcast_rate)); 1980 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1981 1982 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1983 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1984 1985 return 0; 1986 } 1987 1988 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1989 struct net_device *dev, u32 mask, 1990 const struct mesh_config *nconf) 1991 { 1992 struct mesh_config *conf; 1993 struct ieee80211_sub_if_data *sdata; 1994 struct ieee80211_if_mesh *ifmsh; 1995 1996 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1997 ifmsh = &sdata->u.mesh; 1998 1999 /* Set the config options which we are interested in setting */ 2000 conf = &(sdata->u.mesh.mshcfg); 2001 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2002 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2003 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2004 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2005 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2006 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2007 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2008 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2009 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2010 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2011 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2012 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2014 conf->element_ttl = nconf->element_ttl; 2015 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2016 if (ifmsh->user_mpm) 2017 return -EBUSY; 2018 conf->auto_open_plinks = nconf->auto_open_plinks; 2019 } 2020 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2021 conf->dot11MeshNbrOffsetMaxNeighbor = 2022 nconf->dot11MeshNbrOffsetMaxNeighbor; 2023 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2024 conf->dot11MeshHWMPmaxPREQretries = 2025 nconf->dot11MeshHWMPmaxPREQretries; 2026 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2027 conf->path_refresh_time = nconf->path_refresh_time; 2028 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2029 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2030 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2031 conf->dot11MeshHWMPactivePathTimeout = 2032 nconf->dot11MeshHWMPactivePathTimeout; 2033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2034 conf->dot11MeshHWMPpreqMinInterval = 2035 nconf->dot11MeshHWMPpreqMinInterval; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2037 conf->dot11MeshHWMPperrMinInterval = 2038 nconf->dot11MeshHWMPperrMinInterval; 2039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2040 mask)) 2041 conf->dot11MeshHWMPnetDiameterTraversalTime = 2042 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2043 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2044 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2045 ieee80211_mesh_root_setup(ifmsh); 2046 } 2047 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2048 /* our current gate announcement implementation rides on root 2049 * announcements, so require this ifmsh to also be a root node 2050 * */ 2051 if (nconf->dot11MeshGateAnnouncementProtocol && 2052 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2053 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2054 ieee80211_mesh_root_setup(ifmsh); 2055 } 2056 conf->dot11MeshGateAnnouncementProtocol = 2057 nconf->dot11MeshGateAnnouncementProtocol; 2058 } 2059 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2060 conf->dot11MeshHWMPRannInterval = 2061 nconf->dot11MeshHWMPRannInterval; 2062 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2063 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2064 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2065 /* our RSSI threshold implementation is supported only for 2066 * devices that report signal in dBm. 2067 */ 2068 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2069 return -ENOTSUPP; 2070 conf->rssi_threshold = nconf->rssi_threshold; 2071 } 2072 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2073 conf->ht_opmode = nconf->ht_opmode; 2074 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2075 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2076 } 2077 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2078 conf->dot11MeshHWMPactivePathToRootTimeout = 2079 nconf->dot11MeshHWMPactivePathToRootTimeout; 2080 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2081 conf->dot11MeshHWMProotInterval = 2082 nconf->dot11MeshHWMProotInterval; 2083 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2084 conf->dot11MeshHWMPconfirmationInterval = 2085 nconf->dot11MeshHWMPconfirmationInterval; 2086 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2087 conf->power_mode = nconf->power_mode; 2088 ieee80211_mps_local_status_update(sdata); 2089 } 2090 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2091 conf->dot11MeshAwakeWindowDuration = 2092 nconf->dot11MeshAwakeWindowDuration; 2093 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2094 conf->plink_timeout = nconf->plink_timeout; 2095 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2096 conf->dot11MeshConnectedToMeshGate = 2097 nconf->dot11MeshConnectedToMeshGate; 2098 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2099 return 0; 2100 } 2101 2102 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2103 const struct mesh_config *conf, 2104 const struct mesh_setup *setup) 2105 { 2106 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2107 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2108 int err; 2109 2110 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2111 err = copy_mesh_setup(ifmsh, setup); 2112 if (err) 2113 return err; 2114 2115 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2116 2117 /* can mesh use other SMPS modes? */ 2118 sdata->smps_mode = IEEE80211_SMPS_OFF; 2119 sdata->needed_rx_chains = sdata->local->rx_chains; 2120 2121 mutex_lock(&sdata->local->mtx); 2122 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2123 IEEE80211_CHANCTX_SHARED); 2124 mutex_unlock(&sdata->local->mtx); 2125 if (err) 2126 return err; 2127 2128 return ieee80211_start_mesh(sdata); 2129 } 2130 2131 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2132 { 2133 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2134 2135 ieee80211_stop_mesh(sdata); 2136 mutex_lock(&sdata->local->mtx); 2137 ieee80211_vif_release_channel(sdata); 2138 mutex_unlock(&sdata->local->mtx); 2139 2140 return 0; 2141 } 2142 #endif 2143 2144 static int ieee80211_change_bss(struct wiphy *wiphy, 2145 struct net_device *dev, 2146 struct bss_parameters *params) 2147 { 2148 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2149 struct ieee80211_supported_band *sband; 2150 u32 changed = 0; 2151 2152 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2153 return -ENOENT; 2154 2155 sband = ieee80211_get_sband(sdata); 2156 if (!sband) 2157 return -EINVAL; 2158 2159 if (params->use_cts_prot >= 0) { 2160 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2161 changed |= BSS_CHANGED_ERP_CTS_PROT; 2162 } 2163 if (params->use_short_preamble >= 0) { 2164 sdata->vif.bss_conf.use_short_preamble = 2165 params->use_short_preamble; 2166 changed |= BSS_CHANGED_ERP_PREAMBLE; 2167 } 2168 2169 if (!sdata->vif.bss_conf.use_short_slot && 2170 sband->band == NL80211_BAND_5GHZ) { 2171 sdata->vif.bss_conf.use_short_slot = true; 2172 changed |= BSS_CHANGED_ERP_SLOT; 2173 } 2174 2175 if (params->use_short_slot_time >= 0) { 2176 sdata->vif.bss_conf.use_short_slot = 2177 params->use_short_slot_time; 2178 changed |= BSS_CHANGED_ERP_SLOT; 2179 } 2180 2181 if (params->basic_rates) { 2182 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2183 wiphy->bands[sband->band], 2184 params->basic_rates, 2185 params->basic_rates_len, 2186 &sdata->vif.bss_conf.basic_rates); 2187 changed |= BSS_CHANGED_BASIC_RATES; 2188 ieee80211_check_rate_mask(sdata); 2189 } 2190 2191 if (params->ap_isolate >= 0) { 2192 if (params->ap_isolate) 2193 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2194 else 2195 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2196 ieee80211_check_fast_rx_iface(sdata); 2197 } 2198 2199 if (params->ht_opmode >= 0) { 2200 sdata->vif.bss_conf.ht_operation_mode = 2201 (u16) params->ht_opmode; 2202 changed |= BSS_CHANGED_HT; 2203 } 2204 2205 if (params->p2p_ctwindow >= 0) { 2206 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2207 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2208 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2209 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2210 changed |= BSS_CHANGED_P2P_PS; 2211 } 2212 2213 if (params->p2p_opp_ps > 0) { 2214 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2215 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2216 changed |= BSS_CHANGED_P2P_PS; 2217 } else if (params->p2p_opp_ps == 0) { 2218 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2219 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2220 changed |= BSS_CHANGED_P2P_PS; 2221 } 2222 2223 ieee80211_bss_info_change_notify(sdata, changed); 2224 2225 return 0; 2226 } 2227 2228 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2229 struct net_device *dev, 2230 struct ieee80211_txq_params *params) 2231 { 2232 struct ieee80211_local *local = wiphy_priv(wiphy); 2233 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2234 struct ieee80211_tx_queue_params p; 2235 2236 if (!local->ops->conf_tx) 2237 return -EOPNOTSUPP; 2238 2239 if (local->hw.queues < IEEE80211_NUM_ACS) 2240 return -EOPNOTSUPP; 2241 2242 memset(&p, 0, sizeof(p)); 2243 p.aifs = params->aifs; 2244 p.cw_max = params->cwmax; 2245 p.cw_min = params->cwmin; 2246 p.txop = params->txop; 2247 2248 /* 2249 * Setting tx queue params disables u-apsd because it's only 2250 * called in master mode. 2251 */ 2252 p.uapsd = false; 2253 2254 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2255 2256 sdata->tx_conf[params->ac] = p; 2257 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2258 wiphy_debug(local->hw.wiphy, 2259 "failed to set TX queue parameters for AC %d\n", 2260 params->ac); 2261 return -EINVAL; 2262 } 2263 2264 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2265 2266 return 0; 2267 } 2268 2269 #ifdef CONFIG_PM 2270 static int ieee80211_suspend(struct wiphy *wiphy, 2271 struct cfg80211_wowlan *wowlan) 2272 { 2273 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2274 } 2275 2276 static int ieee80211_resume(struct wiphy *wiphy) 2277 { 2278 return __ieee80211_resume(wiphy_priv(wiphy)); 2279 } 2280 #else 2281 #define ieee80211_suspend NULL 2282 #define ieee80211_resume NULL 2283 #endif 2284 2285 static int ieee80211_scan(struct wiphy *wiphy, 2286 struct cfg80211_scan_request *req) 2287 { 2288 struct ieee80211_sub_if_data *sdata; 2289 2290 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2291 2292 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2293 case NL80211_IFTYPE_STATION: 2294 case NL80211_IFTYPE_ADHOC: 2295 case NL80211_IFTYPE_MESH_POINT: 2296 case NL80211_IFTYPE_P2P_CLIENT: 2297 case NL80211_IFTYPE_P2P_DEVICE: 2298 break; 2299 case NL80211_IFTYPE_P2P_GO: 2300 if (sdata->local->ops->hw_scan) 2301 break; 2302 /* 2303 * FIXME: implement NoA while scanning in software, 2304 * for now fall through to allow scanning only when 2305 * beaconing hasn't been configured yet 2306 */ 2307 /* fall through */ 2308 case NL80211_IFTYPE_AP: 2309 /* 2310 * If the scan has been forced (and the driver supports 2311 * forcing), don't care about being beaconing already. 2312 * This will create problems to the attached stations (e.g. all 2313 * the frames sent while scanning on other channel will be 2314 * lost) 2315 */ 2316 if (sdata->u.ap.beacon && 2317 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2318 !(req->flags & NL80211_SCAN_FLAG_AP))) 2319 return -EOPNOTSUPP; 2320 break; 2321 case NL80211_IFTYPE_NAN: 2322 default: 2323 return -EOPNOTSUPP; 2324 } 2325 2326 return ieee80211_request_scan(sdata, req); 2327 } 2328 2329 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2330 { 2331 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2332 } 2333 2334 static int 2335 ieee80211_sched_scan_start(struct wiphy *wiphy, 2336 struct net_device *dev, 2337 struct cfg80211_sched_scan_request *req) 2338 { 2339 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2340 2341 if (!sdata->local->ops->sched_scan_start) 2342 return -EOPNOTSUPP; 2343 2344 return ieee80211_request_sched_scan_start(sdata, req); 2345 } 2346 2347 static int 2348 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2349 u64 reqid) 2350 { 2351 struct ieee80211_local *local = wiphy_priv(wiphy); 2352 2353 if (!local->ops->sched_scan_stop) 2354 return -EOPNOTSUPP; 2355 2356 return ieee80211_request_sched_scan_stop(local); 2357 } 2358 2359 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2360 struct cfg80211_auth_request *req) 2361 { 2362 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2363 } 2364 2365 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2366 struct cfg80211_assoc_request *req) 2367 { 2368 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2369 } 2370 2371 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2372 struct cfg80211_deauth_request *req) 2373 { 2374 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2375 } 2376 2377 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2378 struct cfg80211_disassoc_request *req) 2379 { 2380 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2381 } 2382 2383 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2384 struct cfg80211_ibss_params *params) 2385 { 2386 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2387 } 2388 2389 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2390 { 2391 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2392 } 2393 2394 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2395 struct ocb_setup *setup) 2396 { 2397 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2398 } 2399 2400 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2401 { 2402 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2403 } 2404 2405 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2406 int rate[NUM_NL80211_BANDS]) 2407 { 2408 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2409 2410 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2411 sizeof(int) * NUM_NL80211_BANDS); 2412 2413 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2414 2415 return 0; 2416 } 2417 2418 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2419 { 2420 struct ieee80211_local *local = wiphy_priv(wiphy); 2421 int err; 2422 2423 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2424 ieee80211_check_fast_xmit_all(local); 2425 2426 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2427 2428 if (err) { 2429 ieee80211_check_fast_xmit_all(local); 2430 return err; 2431 } 2432 } 2433 2434 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2435 (changed & WIPHY_PARAM_DYN_ACK)) { 2436 s16 coverage_class; 2437 2438 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2439 wiphy->coverage_class : -1; 2440 err = drv_set_coverage_class(local, coverage_class); 2441 2442 if (err) 2443 return err; 2444 } 2445 2446 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2447 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2448 2449 if (err) 2450 return err; 2451 } 2452 2453 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2454 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2455 return -EINVAL; 2456 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2457 } 2458 if (changed & WIPHY_PARAM_RETRY_LONG) { 2459 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2460 return -EINVAL; 2461 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2462 } 2463 if (changed & 2464 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2465 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2466 2467 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2468 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2469 WIPHY_PARAM_TXQ_QUANTUM)) 2470 ieee80211_txq_set_params(local); 2471 2472 return 0; 2473 } 2474 2475 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2476 struct wireless_dev *wdev, 2477 enum nl80211_tx_power_setting type, int mbm) 2478 { 2479 struct ieee80211_local *local = wiphy_priv(wiphy); 2480 struct ieee80211_sub_if_data *sdata; 2481 enum nl80211_tx_power_setting txp_type = type; 2482 bool update_txp_type = false; 2483 bool has_monitor = false; 2484 2485 if (wdev) { 2486 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2487 2488 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2489 sdata = rtnl_dereference(local->monitor_sdata); 2490 if (!sdata) 2491 return -EOPNOTSUPP; 2492 } 2493 2494 switch (type) { 2495 case NL80211_TX_POWER_AUTOMATIC: 2496 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2497 txp_type = NL80211_TX_POWER_LIMITED; 2498 break; 2499 case NL80211_TX_POWER_LIMITED: 2500 case NL80211_TX_POWER_FIXED: 2501 if (mbm < 0 || (mbm % 100)) 2502 return -EOPNOTSUPP; 2503 sdata->user_power_level = MBM_TO_DBM(mbm); 2504 break; 2505 } 2506 2507 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2508 update_txp_type = true; 2509 sdata->vif.bss_conf.txpower_type = txp_type; 2510 } 2511 2512 ieee80211_recalc_txpower(sdata, update_txp_type); 2513 2514 return 0; 2515 } 2516 2517 switch (type) { 2518 case NL80211_TX_POWER_AUTOMATIC: 2519 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2520 txp_type = NL80211_TX_POWER_LIMITED; 2521 break; 2522 case NL80211_TX_POWER_LIMITED: 2523 case NL80211_TX_POWER_FIXED: 2524 if (mbm < 0 || (mbm % 100)) 2525 return -EOPNOTSUPP; 2526 local->user_power_level = MBM_TO_DBM(mbm); 2527 break; 2528 } 2529 2530 mutex_lock(&local->iflist_mtx); 2531 list_for_each_entry(sdata, &local->interfaces, list) { 2532 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2533 has_monitor = true; 2534 continue; 2535 } 2536 sdata->user_power_level = local->user_power_level; 2537 if (txp_type != sdata->vif.bss_conf.txpower_type) 2538 update_txp_type = true; 2539 sdata->vif.bss_conf.txpower_type = txp_type; 2540 } 2541 list_for_each_entry(sdata, &local->interfaces, list) { 2542 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2543 continue; 2544 ieee80211_recalc_txpower(sdata, update_txp_type); 2545 } 2546 mutex_unlock(&local->iflist_mtx); 2547 2548 if (has_monitor) { 2549 sdata = rtnl_dereference(local->monitor_sdata); 2550 if (sdata) { 2551 sdata->user_power_level = local->user_power_level; 2552 if (txp_type != sdata->vif.bss_conf.txpower_type) 2553 update_txp_type = true; 2554 sdata->vif.bss_conf.txpower_type = txp_type; 2555 2556 ieee80211_recalc_txpower(sdata, update_txp_type); 2557 } 2558 } 2559 2560 return 0; 2561 } 2562 2563 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2564 struct wireless_dev *wdev, 2565 int *dbm) 2566 { 2567 struct ieee80211_local *local = wiphy_priv(wiphy); 2568 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2569 2570 if (local->ops->get_txpower) 2571 return drv_get_txpower(local, sdata, dbm); 2572 2573 if (!local->use_chanctx) 2574 *dbm = local->hw.conf.power_level; 2575 else 2576 *dbm = sdata->vif.bss_conf.txpower; 2577 2578 return 0; 2579 } 2580 2581 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2582 const u8 *addr) 2583 { 2584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2585 2586 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2587 2588 return 0; 2589 } 2590 2591 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2592 { 2593 struct ieee80211_local *local = wiphy_priv(wiphy); 2594 2595 drv_rfkill_poll(local); 2596 } 2597 2598 #ifdef CONFIG_NL80211_TESTMODE 2599 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2600 struct wireless_dev *wdev, 2601 void *data, int len) 2602 { 2603 struct ieee80211_local *local = wiphy_priv(wiphy); 2604 struct ieee80211_vif *vif = NULL; 2605 2606 if (!local->ops->testmode_cmd) 2607 return -EOPNOTSUPP; 2608 2609 if (wdev) { 2610 struct ieee80211_sub_if_data *sdata; 2611 2612 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2613 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2614 vif = &sdata->vif; 2615 } 2616 2617 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2618 } 2619 2620 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2621 struct sk_buff *skb, 2622 struct netlink_callback *cb, 2623 void *data, int len) 2624 { 2625 struct ieee80211_local *local = wiphy_priv(wiphy); 2626 2627 if (!local->ops->testmode_dump) 2628 return -EOPNOTSUPP; 2629 2630 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2631 } 2632 #endif 2633 2634 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2635 enum ieee80211_smps_mode smps_mode) 2636 { 2637 struct sta_info *sta; 2638 enum ieee80211_smps_mode old_req; 2639 2640 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2641 return -EINVAL; 2642 2643 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2644 return 0; 2645 2646 old_req = sdata->u.ap.req_smps; 2647 sdata->u.ap.req_smps = smps_mode; 2648 2649 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2650 if (old_req == smps_mode || 2651 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2652 return 0; 2653 2654 ht_dbg(sdata, 2655 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2656 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2657 2658 mutex_lock(&sdata->local->sta_mtx); 2659 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2660 /* 2661 * Only stations associated to our AP and 2662 * associated VLANs 2663 */ 2664 if (sta->sdata->bss != &sdata->u.ap) 2665 continue; 2666 2667 /* This station doesn't support MIMO - skip it */ 2668 if (sta_info_tx_streams(sta) == 1) 2669 continue; 2670 2671 /* 2672 * Don't wake up a STA just to send the action frame 2673 * unless we are getting more restrictive. 2674 */ 2675 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2676 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2677 smps_mode)) { 2678 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2679 sta->sta.addr); 2680 continue; 2681 } 2682 2683 /* 2684 * If the STA is not authorized, wait until it gets 2685 * authorized and the action frame will be sent then. 2686 */ 2687 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2688 continue; 2689 2690 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2691 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2692 sdata->vif.bss_conf.bssid); 2693 } 2694 mutex_unlock(&sdata->local->sta_mtx); 2695 2696 sdata->smps_mode = smps_mode; 2697 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2698 2699 return 0; 2700 } 2701 2702 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2703 enum ieee80211_smps_mode smps_mode) 2704 { 2705 const u8 *ap; 2706 enum ieee80211_smps_mode old_req; 2707 int err; 2708 struct sta_info *sta; 2709 bool tdls_peer_found = false; 2710 2711 lockdep_assert_held(&sdata->wdev.mtx); 2712 2713 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2714 return -EINVAL; 2715 2716 old_req = sdata->u.mgd.req_smps; 2717 sdata->u.mgd.req_smps = smps_mode; 2718 2719 if (old_req == smps_mode && 2720 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2721 return 0; 2722 2723 /* 2724 * If not associated, or current association is not an HT 2725 * association, there's no need to do anything, just store 2726 * the new value until we associate. 2727 */ 2728 if (!sdata->u.mgd.associated || 2729 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2730 return 0; 2731 2732 ap = sdata->u.mgd.associated->bssid; 2733 2734 rcu_read_lock(); 2735 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2736 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2737 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2738 continue; 2739 2740 tdls_peer_found = true; 2741 break; 2742 } 2743 rcu_read_unlock(); 2744 2745 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2746 if (tdls_peer_found || !sdata->u.mgd.powersave) 2747 smps_mode = IEEE80211_SMPS_OFF; 2748 else 2749 smps_mode = IEEE80211_SMPS_DYNAMIC; 2750 } 2751 2752 /* send SM PS frame to AP */ 2753 err = ieee80211_send_smps_action(sdata, smps_mode, 2754 ap, ap); 2755 if (err) 2756 sdata->u.mgd.req_smps = old_req; 2757 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2758 ieee80211_teardown_tdls_peers(sdata); 2759 2760 return err; 2761 } 2762 2763 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2764 bool enabled, int timeout) 2765 { 2766 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2767 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2768 2769 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2770 return -EOPNOTSUPP; 2771 2772 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2773 return -EOPNOTSUPP; 2774 2775 if (enabled == sdata->u.mgd.powersave && 2776 timeout == local->dynamic_ps_forced_timeout) 2777 return 0; 2778 2779 sdata->u.mgd.powersave = enabled; 2780 local->dynamic_ps_forced_timeout = timeout; 2781 2782 /* no change, but if automatic follow powersave */ 2783 sdata_lock(sdata); 2784 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2785 sdata_unlock(sdata); 2786 2787 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2788 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2789 2790 ieee80211_recalc_ps(local); 2791 ieee80211_recalc_ps_vif(sdata); 2792 ieee80211_check_fast_rx_iface(sdata); 2793 2794 return 0; 2795 } 2796 2797 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2798 struct net_device *dev, 2799 s32 rssi_thold, u32 rssi_hyst) 2800 { 2801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2802 struct ieee80211_vif *vif = &sdata->vif; 2803 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2804 2805 if (rssi_thold == bss_conf->cqm_rssi_thold && 2806 rssi_hyst == bss_conf->cqm_rssi_hyst) 2807 return 0; 2808 2809 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2810 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2811 return -EOPNOTSUPP; 2812 2813 bss_conf->cqm_rssi_thold = rssi_thold; 2814 bss_conf->cqm_rssi_hyst = rssi_hyst; 2815 bss_conf->cqm_rssi_low = 0; 2816 bss_conf->cqm_rssi_high = 0; 2817 sdata->u.mgd.last_cqm_event_signal = 0; 2818 2819 /* tell the driver upon association, unless already associated */ 2820 if (sdata->u.mgd.associated && 2821 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2822 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2823 2824 return 0; 2825 } 2826 2827 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2828 struct net_device *dev, 2829 s32 rssi_low, s32 rssi_high) 2830 { 2831 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2832 struct ieee80211_vif *vif = &sdata->vif; 2833 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2834 2835 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2836 return -EOPNOTSUPP; 2837 2838 bss_conf->cqm_rssi_low = rssi_low; 2839 bss_conf->cqm_rssi_high = rssi_high; 2840 bss_conf->cqm_rssi_thold = 0; 2841 bss_conf->cqm_rssi_hyst = 0; 2842 sdata->u.mgd.last_cqm_event_signal = 0; 2843 2844 /* tell the driver upon association, unless already associated */ 2845 if (sdata->u.mgd.associated && 2846 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2847 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2848 2849 return 0; 2850 } 2851 2852 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2853 struct net_device *dev, 2854 const u8 *addr, 2855 const struct cfg80211_bitrate_mask *mask) 2856 { 2857 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2858 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2859 int i, ret; 2860 2861 if (!ieee80211_sdata_running(sdata)) 2862 return -ENETDOWN; 2863 2864 /* 2865 * If active validate the setting and reject it if it doesn't leave 2866 * at least one basic rate usable, since we really have to be able 2867 * to send something, and if we're an AP we have to be able to do 2868 * so at a basic rate so that all clients can receive it. 2869 */ 2870 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2871 sdata->vif.bss_conf.chandef.chan) { 2872 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2873 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2874 2875 if (!(mask->control[band].legacy & basic_rates)) 2876 return -EINVAL; 2877 } 2878 2879 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2880 ret = drv_set_bitrate_mask(local, sdata, mask); 2881 if (ret) 2882 return ret; 2883 } 2884 2885 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2886 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2887 int j; 2888 2889 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2890 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2891 sizeof(mask->control[i].ht_mcs)); 2892 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2893 mask->control[i].vht_mcs, 2894 sizeof(mask->control[i].vht_mcs)); 2895 2896 sdata->rc_has_mcs_mask[i] = false; 2897 sdata->rc_has_vht_mcs_mask[i] = false; 2898 if (!sband) 2899 continue; 2900 2901 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2902 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2903 sdata->rc_has_mcs_mask[i] = true; 2904 break; 2905 } 2906 } 2907 2908 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2909 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2910 sdata->rc_has_vht_mcs_mask[i] = true; 2911 break; 2912 } 2913 } 2914 } 2915 2916 return 0; 2917 } 2918 2919 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2920 struct net_device *dev, 2921 struct cfg80211_chan_def *chandef, 2922 u32 cac_time_ms) 2923 { 2924 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2925 struct ieee80211_local *local = sdata->local; 2926 int err; 2927 2928 mutex_lock(&local->mtx); 2929 if (!list_empty(&local->roc_list) || local->scanning) { 2930 err = -EBUSY; 2931 goto out_unlock; 2932 } 2933 2934 /* whatever, but channel contexts should not complain about that one */ 2935 sdata->smps_mode = IEEE80211_SMPS_OFF; 2936 sdata->needed_rx_chains = local->rx_chains; 2937 2938 err = ieee80211_vif_use_channel(sdata, chandef, 2939 IEEE80211_CHANCTX_SHARED); 2940 if (err) 2941 goto out_unlock; 2942 2943 ieee80211_queue_delayed_work(&sdata->local->hw, 2944 &sdata->dfs_cac_timer_work, 2945 msecs_to_jiffies(cac_time_ms)); 2946 2947 out_unlock: 2948 mutex_unlock(&local->mtx); 2949 return err; 2950 } 2951 2952 static struct cfg80211_beacon_data * 2953 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2954 { 2955 struct cfg80211_beacon_data *new_beacon; 2956 u8 *pos; 2957 int len; 2958 2959 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2960 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2961 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2962 2963 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2964 if (!new_beacon) 2965 return NULL; 2966 2967 pos = (u8 *)(new_beacon + 1); 2968 if (beacon->head_len) { 2969 new_beacon->head_len = beacon->head_len; 2970 new_beacon->head = pos; 2971 memcpy(pos, beacon->head, beacon->head_len); 2972 pos += beacon->head_len; 2973 } 2974 if (beacon->tail_len) { 2975 new_beacon->tail_len = beacon->tail_len; 2976 new_beacon->tail = pos; 2977 memcpy(pos, beacon->tail, beacon->tail_len); 2978 pos += beacon->tail_len; 2979 } 2980 if (beacon->beacon_ies_len) { 2981 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2982 new_beacon->beacon_ies = pos; 2983 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2984 pos += beacon->beacon_ies_len; 2985 } 2986 if (beacon->proberesp_ies_len) { 2987 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2988 new_beacon->proberesp_ies = pos; 2989 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2990 pos += beacon->proberesp_ies_len; 2991 } 2992 if (beacon->assocresp_ies_len) { 2993 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2994 new_beacon->assocresp_ies = pos; 2995 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2996 pos += beacon->assocresp_ies_len; 2997 } 2998 if (beacon->probe_resp_len) { 2999 new_beacon->probe_resp_len = beacon->probe_resp_len; 3000 new_beacon->probe_resp = pos; 3001 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3002 pos += beacon->probe_resp_len; 3003 } 3004 3005 /* might copy -1, meaning no changes requested */ 3006 new_beacon->ftm_responder = beacon->ftm_responder; 3007 if (beacon->lci) { 3008 new_beacon->lci_len = beacon->lci_len; 3009 new_beacon->lci = pos; 3010 memcpy(pos, beacon->lci, beacon->lci_len); 3011 pos += beacon->lci_len; 3012 } 3013 if (beacon->civicloc) { 3014 new_beacon->civicloc_len = beacon->civicloc_len; 3015 new_beacon->civicloc = pos; 3016 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3017 pos += beacon->civicloc_len; 3018 } 3019 3020 return new_beacon; 3021 } 3022 3023 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3024 { 3025 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3026 3027 ieee80211_queue_work(&sdata->local->hw, 3028 &sdata->csa_finalize_work); 3029 } 3030 EXPORT_SYMBOL(ieee80211_csa_finish); 3031 3032 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3033 u32 *changed) 3034 { 3035 int err; 3036 3037 switch (sdata->vif.type) { 3038 case NL80211_IFTYPE_AP: 3039 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3040 NULL); 3041 kfree(sdata->u.ap.next_beacon); 3042 sdata->u.ap.next_beacon = NULL; 3043 3044 if (err < 0) 3045 return err; 3046 *changed |= err; 3047 break; 3048 case NL80211_IFTYPE_ADHOC: 3049 err = ieee80211_ibss_finish_csa(sdata); 3050 if (err < 0) 3051 return err; 3052 *changed |= err; 3053 break; 3054 #ifdef CONFIG_MAC80211_MESH 3055 case NL80211_IFTYPE_MESH_POINT: 3056 err = ieee80211_mesh_finish_csa(sdata); 3057 if (err < 0) 3058 return err; 3059 *changed |= err; 3060 break; 3061 #endif 3062 default: 3063 WARN_ON(1); 3064 return -EINVAL; 3065 } 3066 3067 return 0; 3068 } 3069 3070 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3071 { 3072 struct ieee80211_local *local = sdata->local; 3073 u32 changed = 0; 3074 int err; 3075 3076 sdata_assert_lock(sdata); 3077 lockdep_assert_held(&local->mtx); 3078 lockdep_assert_held(&local->chanctx_mtx); 3079 3080 /* 3081 * using reservation isn't immediate as it may be deferred until later 3082 * with multi-vif. once reservation is complete it will re-schedule the 3083 * work with no reserved_chanctx so verify chandef to check if it 3084 * completed successfully 3085 */ 3086 3087 if (sdata->reserved_chanctx) { 3088 /* 3089 * with multi-vif csa driver may call ieee80211_csa_finish() 3090 * many times while waiting for other interfaces to use their 3091 * reservations 3092 */ 3093 if (sdata->reserved_ready) 3094 return 0; 3095 3096 return ieee80211_vif_use_reserved_context(sdata); 3097 } 3098 3099 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3100 &sdata->csa_chandef)) 3101 return -EINVAL; 3102 3103 sdata->vif.csa_active = false; 3104 3105 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3106 if (err) 3107 return err; 3108 3109 ieee80211_bss_info_change_notify(sdata, changed); 3110 3111 if (sdata->csa_block_tx) { 3112 ieee80211_wake_vif_queues(local, sdata, 3113 IEEE80211_QUEUE_STOP_REASON_CSA); 3114 sdata->csa_block_tx = false; 3115 } 3116 3117 err = drv_post_channel_switch(sdata); 3118 if (err) 3119 return err; 3120 3121 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3122 3123 return 0; 3124 } 3125 3126 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3127 { 3128 if (__ieee80211_csa_finalize(sdata)) { 3129 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3130 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3131 GFP_KERNEL); 3132 } 3133 } 3134 3135 void ieee80211_csa_finalize_work(struct work_struct *work) 3136 { 3137 struct ieee80211_sub_if_data *sdata = 3138 container_of(work, struct ieee80211_sub_if_data, 3139 csa_finalize_work); 3140 struct ieee80211_local *local = sdata->local; 3141 3142 sdata_lock(sdata); 3143 mutex_lock(&local->mtx); 3144 mutex_lock(&local->chanctx_mtx); 3145 3146 /* AP might have been stopped while waiting for the lock. */ 3147 if (!sdata->vif.csa_active) 3148 goto unlock; 3149 3150 if (!ieee80211_sdata_running(sdata)) 3151 goto unlock; 3152 3153 ieee80211_csa_finalize(sdata); 3154 3155 unlock: 3156 mutex_unlock(&local->chanctx_mtx); 3157 mutex_unlock(&local->mtx); 3158 sdata_unlock(sdata); 3159 } 3160 3161 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3162 struct cfg80211_csa_settings *params, 3163 u32 *changed) 3164 { 3165 struct ieee80211_csa_settings csa = {}; 3166 int err; 3167 3168 switch (sdata->vif.type) { 3169 case NL80211_IFTYPE_AP: 3170 sdata->u.ap.next_beacon = 3171 cfg80211_beacon_dup(¶ms->beacon_after); 3172 if (!sdata->u.ap.next_beacon) 3173 return -ENOMEM; 3174 3175 /* 3176 * With a count of 0, we don't have to wait for any 3177 * TBTT before switching, so complete the CSA 3178 * immediately. In theory, with a count == 1 we 3179 * should delay the switch until just before the next 3180 * TBTT, but that would complicate things so we switch 3181 * immediately too. If we would delay the switch 3182 * until the next TBTT, we would have to set the probe 3183 * response here. 3184 * 3185 * TODO: A channel switch with count <= 1 without 3186 * sending a CSA action frame is kind of useless, 3187 * because the clients won't know we're changing 3188 * channels. The action frame must be implemented 3189 * either here or in the userspace. 3190 */ 3191 if (params->count <= 1) 3192 break; 3193 3194 if ((params->n_counter_offsets_beacon > 3195 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3196 (params->n_counter_offsets_presp > 3197 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3198 return -EINVAL; 3199 3200 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3201 csa.counter_offsets_presp = params->counter_offsets_presp; 3202 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3203 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3204 csa.count = params->count; 3205 3206 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3207 if (err < 0) { 3208 kfree(sdata->u.ap.next_beacon); 3209 return err; 3210 } 3211 *changed |= err; 3212 3213 break; 3214 case NL80211_IFTYPE_ADHOC: 3215 if (!sdata->vif.bss_conf.ibss_joined) 3216 return -EINVAL; 3217 3218 if (params->chandef.width != sdata->u.ibss.chandef.width) 3219 return -EINVAL; 3220 3221 switch (params->chandef.width) { 3222 case NL80211_CHAN_WIDTH_40: 3223 if (cfg80211_get_chandef_type(¶ms->chandef) != 3224 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3225 return -EINVAL; 3226 case NL80211_CHAN_WIDTH_5: 3227 case NL80211_CHAN_WIDTH_10: 3228 case NL80211_CHAN_WIDTH_20_NOHT: 3229 case NL80211_CHAN_WIDTH_20: 3230 break; 3231 default: 3232 return -EINVAL; 3233 } 3234 3235 /* changes into another band are not supported */ 3236 if (sdata->u.ibss.chandef.chan->band != 3237 params->chandef.chan->band) 3238 return -EINVAL; 3239 3240 /* see comments in the NL80211_IFTYPE_AP block */ 3241 if (params->count > 1) { 3242 err = ieee80211_ibss_csa_beacon(sdata, params); 3243 if (err < 0) 3244 return err; 3245 *changed |= err; 3246 } 3247 3248 ieee80211_send_action_csa(sdata, params); 3249 3250 break; 3251 #ifdef CONFIG_MAC80211_MESH 3252 case NL80211_IFTYPE_MESH_POINT: { 3253 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3254 3255 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3256 return -EINVAL; 3257 3258 /* changes into another band are not supported */ 3259 if (sdata->vif.bss_conf.chandef.chan->band != 3260 params->chandef.chan->band) 3261 return -EINVAL; 3262 3263 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3264 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3265 if (!ifmsh->pre_value) 3266 ifmsh->pre_value = 1; 3267 else 3268 ifmsh->pre_value++; 3269 } 3270 3271 /* see comments in the NL80211_IFTYPE_AP block */ 3272 if (params->count > 1) { 3273 err = ieee80211_mesh_csa_beacon(sdata, params); 3274 if (err < 0) { 3275 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3276 return err; 3277 } 3278 *changed |= err; 3279 } 3280 3281 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3282 ieee80211_send_action_csa(sdata, params); 3283 3284 break; 3285 } 3286 #endif 3287 default: 3288 return -EOPNOTSUPP; 3289 } 3290 3291 return 0; 3292 } 3293 3294 static int 3295 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3296 struct cfg80211_csa_settings *params) 3297 { 3298 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3299 struct ieee80211_local *local = sdata->local; 3300 struct ieee80211_channel_switch ch_switch; 3301 struct ieee80211_chanctx_conf *conf; 3302 struct ieee80211_chanctx *chanctx; 3303 u32 changed = 0; 3304 int err; 3305 3306 sdata_assert_lock(sdata); 3307 lockdep_assert_held(&local->mtx); 3308 3309 if (!list_empty(&local->roc_list) || local->scanning) 3310 return -EBUSY; 3311 3312 if (sdata->wdev.cac_started) 3313 return -EBUSY; 3314 3315 if (cfg80211_chandef_identical(¶ms->chandef, 3316 &sdata->vif.bss_conf.chandef)) 3317 return -EINVAL; 3318 3319 /* don't allow another channel switch if one is already active. */ 3320 if (sdata->vif.csa_active) 3321 return -EBUSY; 3322 3323 mutex_lock(&local->chanctx_mtx); 3324 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3325 lockdep_is_held(&local->chanctx_mtx)); 3326 if (!conf) { 3327 err = -EBUSY; 3328 goto out; 3329 } 3330 3331 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3332 3333 ch_switch.timestamp = 0; 3334 ch_switch.device_timestamp = 0; 3335 ch_switch.block_tx = params->block_tx; 3336 ch_switch.chandef = params->chandef; 3337 ch_switch.count = params->count; 3338 3339 err = drv_pre_channel_switch(sdata, &ch_switch); 3340 if (err) 3341 goto out; 3342 3343 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3344 chanctx->mode, 3345 params->radar_required); 3346 if (err) 3347 goto out; 3348 3349 /* if reservation is invalid then this will fail */ 3350 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3351 if (err) { 3352 ieee80211_vif_unreserve_chanctx(sdata); 3353 goto out; 3354 } 3355 3356 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3357 if (err) { 3358 ieee80211_vif_unreserve_chanctx(sdata); 3359 goto out; 3360 } 3361 3362 sdata->csa_chandef = params->chandef; 3363 sdata->csa_block_tx = params->block_tx; 3364 sdata->vif.csa_active = true; 3365 3366 if (sdata->csa_block_tx) 3367 ieee80211_stop_vif_queues(local, sdata, 3368 IEEE80211_QUEUE_STOP_REASON_CSA); 3369 3370 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3371 params->count); 3372 3373 if (changed) { 3374 ieee80211_bss_info_change_notify(sdata, changed); 3375 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3376 } else { 3377 /* if the beacon didn't change, we can finalize immediately */ 3378 ieee80211_csa_finalize(sdata); 3379 } 3380 3381 out: 3382 mutex_unlock(&local->chanctx_mtx); 3383 return err; 3384 } 3385 3386 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3387 struct cfg80211_csa_settings *params) 3388 { 3389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3390 struct ieee80211_local *local = sdata->local; 3391 int err; 3392 3393 mutex_lock(&local->mtx); 3394 err = __ieee80211_channel_switch(wiphy, dev, params); 3395 mutex_unlock(&local->mtx); 3396 3397 return err; 3398 } 3399 3400 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3401 { 3402 lockdep_assert_held(&local->mtx); 3403 3404 local->roc_cookie_counter++; 3405 3406 /* wow, you wrapped 64 bits ... more likely a bug */ 3407 if (WARN_ON(local->roc_cookie_counter == 0)) 3408 local->roc_cookie_counter++; 3409 3410 return local->roc_cookie_counter; 3411 } 3412 3413 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3414 u64 *cookie, gfp_t gfp) 3415 { 3416 unsigned long spin_flags; 3417 struct sk_buff *ack_skb; 3418 int id; 3419 3420 ack_skb = skb_copy(skb, gfp); 3421 if (!ack_skb) 3422 return -ENOMEM; 3423 3424 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3425 id = idr_alloc(&local->ack_status_frames, ack_skb, 3426 1, 0x10000, GFP_ATOMIC); 3427 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3428 3429 if (id < 0) { 3430 kfree_skb(ack_skb); 3431 return -ENOMEM; 3432 } 3433 3434 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3435 3436 *cookie = ieee80211_mgmt_tx_cookie(local); 3437 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3438 3439 return 0; 3440 } 3441 3442 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3443 struct wireless_dev *wdev, 3444 u16 frame_type, bool reg) 3445 { 3446 struct ieee80211_local *local = wiphy_priv(wiphy); 3447 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3448 3449 switch (frame_type) { 3450 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3451 if (reg) { 3452 local->probe_req_reg++; 3453 sdata->vif.probe_req_reg++; 3454 } else { 3455 if (local->probe_req_reg) 3456 local->probe_req_reg--; 3457 3458 if (sdata->vif.probe_req_reg) 3459 sdata->vif.probe_req_reg--; 3460 } 3461 3462 if (!local->open_count) 3463 break; 3464 3465 if (sdata->vif.probe_req_reg == 1) 3466 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3467 FIF_PROBE_REQ); 3468 else if (sdata->vif.probe_req_reg == 0) 3469 drv_config_iface_filter(local, sdata, 0, 3470 FIF_PROBE_REQ); 3471 3472 ieee80211_configure_filter(local); 3473 break; 3474 default: 3475 break; 3476 } 3477 } 3478 3479 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3480 { 3481 struct ieee80211_local *local = wiphy_priv(wiphy); 3482 3483 if (local->started) 3484 return -EOPNOTSUPP; 3485 3486 return drv_set_antenna(local, tx_ant, rx_ant); 3487 } 3488 3489 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3490 { 3491 struct ieee80211_local *local = wiphy_priv(wiphy); 3492 3493 return drv_get_antenna(local, tx_ant, rx_ant); 3494 } 3495 3496 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3497 struct net_device *dev, 3498 struct cfg80211_gtk_rekey_data *data) 3499 { 3500 struct ieee80211_local *local = wiphy_priv(wiphy); 3501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3502 3503 if (!local->ops->set_rekey_data) 3504 return -EOPNOTSUPP; 3505 3506 drv_set_rekey_data(local, sdata, data); 3507 3508 return 0; 3509 } 3510 3511 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3512 const u8 *peer, u64 *cookie) 3513 { 3514 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3515 struct ieee80211_local *local = sdata->local; 3516 struct ieee80211_qos_hdr *nullfunc; 3517 struct sk_buff *skb; 3518 int size = sizeof(*nullfunc); 3519 __le16 fc; 3520 bool qos; 3521 struct ieee80211_tx_info *info; 3522 struct sta_info *sta; 3523 struct ieee80211_chanctx_conf *chanctx_conf; 3524 enum nl80211_band band; 3525 int ret; 3526 3527 /* the lock is needed to assign the cookie later */ 3528 mutex_lock(&local->mtx); 3529 3530 rcu_read_lock(); 3531 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3532 if (WARN_ON(!chanctx_conf)) { 3533 ret = -EINVAL; 3534 goto unlock; 3535 } 3536 band = chanctx_conf->def.chan->band; 3537 sta = sta_info_get_bss(sdata, peer); 3538 if (sta) { 3539 qos = sta->sta.wme; 3540 } else { 3541 ret = -ENOLINK; 3542 goto unlock; 3543 } 3544 3545 if (qos) { 3546 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3547 IEEE80211_STYPE_QOS_NULLFUNC | 3548 IEEE80211_FCTL_FROMDS); 3549 } else { 3550 size -= 2; 3551 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3552 IEEE80211_STYPE_NULLFUNC | 3553 IEEE80211_FCTL_FROMDS); 3554 } 3555 3556 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3557 if (!skb) { 3558 ret = -ENOMEM; 3559 goto unlock; 3560 } 3561 3562 skb->dev = dev; 3563 3564 skb_reserve(skb, local->hw.extra_tx_headroom); 3565 3566 nullfunc = skb_put(skb, size); 3567 nullfunc->frame_control = fc; 3568 nullfunc->duration_id = 0; 3569 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3570 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3571 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3572 nullfunc->seq_ctrl = 0; 3573 3574 info = IEEE80211_SKB_CB(skb); 3575 3576 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3577 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3578 info->band = band; 3579 3580 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3581 skb->priority = 7; 3582 if (qos) 3583 nullfunc->qos_ctrl = cpu_to_le16(7); 3584 3585 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3586 if (ret) { 3587 kfree_skb(skb); 3588 goto unlock; 3589 } 3590 3591 local_bh_disable(); 3592 ieee80211_xmit(sdata, sta, skb, 0); 3593 local_bh_enable(); 3594 3595 ret = 0; 3596 unlock: 3597 rcu_read_unlock(); 3598 mutex_unlock(&local->mtx); 3599 3600 return ret; 3601 } 3602 3603 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3604 struct wireless_dev *wdev, 3605 struct cfg80211_chan_def *chandef) 3606 { 3607 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3608 struct ieee80211_local *local = wiphy_priv(wiphy); 3609 struct ieee80211_chanctx_conf *chanctx_conf; 3610 int ret = -ENODATA; 3611 3612 rcu_read_lock(); 3613 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3614 if (chanctx_conf) { 3615 *chandef = sdata->vif.bss_conf.chandef; 3616 ret = 0; 3617 } else if (local->open_count > 0 && 3618 local->open_count == local->monitors && 3619 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3620 if (local->use_chanctx) 3621 *chandef = local->monitor_chandef; 3622 else 3623 *chandef = local->_oper_chandef; 3624 ret = 0; 3625 } 3626 rcu_read_unlock(); 3627 3628 return ret; 3629 } 3630 3631 #ifdef CONFIG_PM 3632 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3633 { 3634 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3635 } 3636 #endif 3637 3638 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3639 struct net_device *dev, 3640 struct cfg80211_qos_map *qos_map) 3641 { 3642 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3643 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3644 3645 if (qos_map) { 3646 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3647 if (!new_qos_map) 3648 return -ENOMEM; 3649 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3650 } else { 3651 /* A NULL qos_map was passed to disable QoS mapping */ 3652 new_qos_map = NULL; 3653 } 3654 3655 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3656 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3657 if (old_qos_map) 3658 kfree_rcu(old_qos_map, rcu_head); 3659 3660 return 0; 3661 } 3662 3663 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3664 struct net_device *dev, 3665 struct cfg80211_chan_def *chandef) 3666 { 3667 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3668 int ret; 3669 u32 changed = 0; 3670 3671 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3672 if (ret == 0) 3673 ieee80211_bss_info_change_notify(sdata, changed); 3674 3675 return ret; 3676 } 3677 3678 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3679 u8 tsid, const u8 *peer, u8 up, 3680 u16 admitted_time) 3681 { 3682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3683 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3684 int ac = ieee802_1d_to_ac[up]; 3685 3686 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3687 return -EOPNOTSUPP; 3688 3689 if (!(sdata->wmm_acm & BIT(up))) 3690 return -EINVAL; 3691 3692 if (ifmgd->tx_tspec[ac].admitted_time) 3693 return -EBUSY; 3694 3695 if (admitted_time) { 3696 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3697 ifmgd->tx_tspec[ac].tsid = tsid; 3698 ifmgd->tx_tspec[ac].up = up; 3699 } 3700 3701 return 0; 3702 } 3703 3704 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3705 u8 tsid, const u8 *peer) 3706 { 3707 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3708 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3709 struct ieee80211_local *local = wiphy_priv(wiphy); 3710 int ac; 3711 3712 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3713 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3714 3715 /* skip unused entries */ 3716 if (!tx_tspec->admitted_time) 3717 continue; 3718 3719 if (tx_tspec->tsid != tsid) 3720 continue; 3721 3722 /* due to this new packets will be reassigned to non-ACM ACs */ 3723 tx_tspec->up = -1; 3724 3725 /* Make sure that all packets have been sent to avoid to 3726 * restore the QoS params on packets that are still on the 3727 * queues. 3728 */ 3729 synchronize_net(); 3730 ieee80211_flush_queues(local, sdata, false); 3731 3732 /* restore the normal QoS parameters 3733 * (unconditionally to avoid races) 3734 */ 3735 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3736 tx_tspec->downgraded = false; 3737 ieee80211_sta_handle_tspec_ac_params(sdata); 3738 3739 /* finally clear all the data */ 3740 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3741 3742 return 0; 3743 } 3744 3745 return -ENOENT; 3746 } 3747 3748 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3749 u8 inst_id, 3750 enum nl80211_nan_func_term_reason reason, 3751 gfp_t gfp) 3752 { 3753 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3754 struct cfg80211_nan_func *func; 3755 u64 cookie; 3756 3757 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3758 return; 3759 3760 spin_lock_bh(&sdata->u.nan.func_lock); 3761 3762 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3763 if (WARN_ON(!func)) { 3764 spin_unlock_bh(&sdata->u.nan.func_lock); 3765 return; 3766 } 3767 3768 cookie = func->cookie; 3769 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3770 3771 spin_unlock_bh(&sdata->u.nan.func_lock); 3772 3773 cfg80211_free_nan_func(func); 3774 3775 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3776 reason, cookie, gfp); 3777 } 3778 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3779 3780 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3781 struct cfg80211_nan_match_params *match, 3782 gfp_t gfp) 3783 { 3784 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3785 struct cfg80211_nan_func *func; 3786 3787 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3788 return; 3789 3790 spin_lock_bh(&sdata->u.nan.func_lock); 3791 3792 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3793 if (WARN_ON(!func)) { 3794 spin_unlock_bh(&sdata->u.nan.func_lock); 3795 return; 3796 } 3797 match->cookie = func->cookie; 3798 3799 spin_unlock_bh(&sdata->u.nan.func_lock); 3800 3801 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3802 } 3803 EXPORT_SYMBOL(ieee80211_nan_func_match); 3804 3805 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3806 struct net_device *dev, 3807 const bool enabled) 3808 { 3809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3810 3811 sdata->u.ap.multicast_to_unicast = enabled; 3812 3813 return 0; 3814 } 3815 3816 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3817 struct txq_info *txqi) 3818 { 3819 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3820 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3821 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3822 } 3823 3824 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3825 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3826 txqstats->backlog_packets = txqi->tin.backlog_packets; 3827 } 3828 3829 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3830 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3831 txqstats->flows = txqi->tin.flows; 3832 } 3833 3834 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3835 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3836 txqstats->drops = txqi->cstats.drop_count; 3837 } 3838 3839 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3840 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3841 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3842 } 3843 3844 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3845 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3846 txqstats->overlimit = txqi->tin.overlimit; 3847 } 3848 3849 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3850 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3851 txqstats->collisions = txqi->tin.collisions; 3852 } 3853 3854 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3855 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3856 txqstats->tx_bytes = txqi->tin.tx_bytes; 3857 } 3858 3859 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3860 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3861 txqstats->tx_packets = txqi->tin.tx_packets; 3862 } 3863 } 3864 3865 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3866 struct wireless_dev *wdev, 3867 struct cfg80211_txq_stats *txqstats) 3868 { 3869 struct ieee80211_local *local = wiphy_priv(wiphy); 3870 struct ieee80211_sub_if_data *sdata; 3871 int ret = 0; 3872 3873 if (!local->ops->wake_tx_queue) 3874 return 1; 3875 3876 spin_lock_bh(&local->fq.lock); 3877 rcu_read_lock(); 3878 3879 if (wdev) { 3880 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3881 if (!sdata->vif.txq) { 3882 ret = 1; 3883 goto out; 3884 } 3885 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3886 } else { 3887 /* phy stats */ 3888 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3889 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3890 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3891 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3892 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3893 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3894 txqstats->backlog_packets = local->fq.backlog; 3895 txqstats->backlog_bytes = local->fq.memory_usage; 3896 txqstats->overlimit = local->fq.overlimit; 3897 txqstats->overmemory = local->fq.overmemory; 3898 txqstats->collisions = local->fq.collisions; 3899 txqstats->max_flows = local->fq.flows_cnt; 3900 } 3901 3902 out: 3903 rcu_read_unlock(); 3904 spin_unlock_bh(&local->fq.lock); 3905 3906 return ret; 3907 } 3908 3909 static int 3910 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3911 struct net_device *dev, 3912 struct cfg80211_ftm_responder_stats *ftm_stats) 3913 { 3914 struct ieee80211_local *local = wiphy_priv(wiphy); 3915 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3916 3917 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3918 } 3919 3920 static int 3921 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3922 struct cfg80211_pmsr_request *request) 3923 { 3924 struct ieee80211_local *local = wiphy_priv(wiphy); 3925 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3926 3927 return drv_start_pmsr(local, sdata, request); 3928 } 3929 3930 static void 3931 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3932 struct cfg80211_pmsr_request *request) 3933 { 3934 struct ieee80211_local *local = wiphy_priv(wiphy); 3935 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3936 3937 return drv_abort_pmsr(local, sdata, request); 3938 } 3939 3940 const struct cfg80211_ops mac80211_config_ops = { 3941 .add_virtual_intf = ieee80211_add_iface, 3942 .del_virtual_intf = ieee80211_del_iface, 3943 .change_virtual_intf = ieee80211_change_iface, 3944 .start_p2p_device = ieee80211_start_p2p_device, 3945 .stop_p2p_device = ieee80211_stop_p2p_device, 3946 .add_key = ieee80211_add_key, 3947 .del_key = ieee80211_del_key, 3948 .get_key = ieee80211_get_key, 3949 .set_default_key = ieee80211_config_default_key, 3950 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3951 .start_ap = ieee80211_start_ap, 3952 .change_beacon = ieee80211_change_beacon, 3953 .stop_ap = ieee80211_stop_ap, 3954 .add_station = ieee80211_add_station, 3955 .del_station = ieee80211_del_station, 3956 .change_station = ieee80211_change_station, 3957 .get_station = ieee80211_get_station, 3958 .dump_station = ieee80211_dump_station, 3959 .dump_survey = ieee80211_dump_survey, 3960 #ifdef CONFIG_MAC80211_MESH 3961 .add_mpath = ieee80211_add_mpath, 3962 .del_mpath = ieee80211_del_mpath, 3963 .change_mpath = ieee80211_change_mpath, 3964 .get_mpath = ieee80211_get_mpath, 3965 .dump_mpath = ieee80211_dump_mpath, 3966 .get_mpp = ieee80211_get_mpp, 3967 .dump_mpp = ieee80211_dump_mpp, 3968 .update_mesh_config = ieee80211_update_mesh_config, 3969 .get_mesh_config = ieee80211_get_mesh_config, 3970 .join_mesh = ieee80211_join_mesh, 3971 .leave_mesh = ieee80211_leave_mesh, 3972 #endif 3973 .join_ocb = ieee80211_join_ocb, 3974 .leave_ocb = ieee80211_leave_ocb, 3975 .change_bss = ieee80211_change_bss, 3976 .set_txq_params = ieee80211_set_txq_params, 3977 .set_monitor_channel = ieee80211_set_monitor_channel, 3978 .suspend = ieee80211_suspend, 3979 .resume = ieee80211_resume, 3980 .scan = ieee80211_scan, 3981 .abort_scan = ieee80211_abort_scan, 3982 .sched_scan_start = ieee80211_sched_scan_start, 3983 .sched_scan_stop = ieee80211_sched_scan_stop, 3984 .auth = ieee80211_auth, 3985 .assoc = ieee80211_assoc, 3986 .deauth = ieee80211_deauth, 3987 .disassoc = ieee80211_disassoc, 3988 .join_ibss = ieee80211_join_ibss, 3989 .leave_ibss = ieee80211_leave_ibss, 3990 .set_mcast_rate = ieee80211_set_mcast_rate, 3991 .set_wiphy_params = ieee80211_set_wiphy_params, 3992 .set_tx_power = ieee80211_set_tx_power, 3993 .get_tx_power = ieee80211_get_tx_power, 3994 .set_wds_peer = ieee80211_set_wds_peer, 3995 .rfkill_poll = ieee80211_rfkill_poll, 3996 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3997 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3998 .set_power_mgmt = ieee80211_set_power_mgmt, 3999 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4000 .remain_on_channel = ieee80211_remain_on_channel, 4001 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4002 .mgmt_tx = ieee80211_mgmt_tx, 4003 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4004 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4005 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4006 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4007 .set_antenna = ieee80211_set_antenna, 4008 .get_antenna = ieee80211_get_antenna, 4009 .set_rekey_data = ieee80211_set_rekey_data, 4010 .tdls_oper = ieee80211_tdls_oper, 4011 .tdls_mgmt = ieee80211_tdls_mgmt, 4012 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4013 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4014 .probe_client = ieee80211_probe_client, 4015 .set_noack_map = ieee80211_set_noack_map, 4016 #ifdef CONFIG_PM 4017 .set_wakeup = ieee80211_set_wakeup, 4018 #endif 4019 .get_channel = ieee80211_cfg_get_channel, 4020 .start_radar_detection = ieee80211_start_radar_detection, 4021 .channel_switch = ieee80211_channel_switch, 4022 .set_qos_map = ieee80211_set_qos_map, 4023 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4024 .add_tx_ts = ieee80211_add_tx_ts, 4025 .del_tx_ts = ieee80211_del_tx_ts, 4026 .start_nan = ieee80211_start_nan, 4027 .stop_nan = ieee80211_stop_nan, 4028 .nan_change_conf = ieee80211_nan_change_conf, 4029 .add_nan_func = ieee80211_add_nan_func, 4030 .del_nan_func = ieee80211_del_nan_func, 4031 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4032 .tx_control_port = ieee80211_tx_control_port, 4033 .get_txq_stats = ieee80211_get_txq_stats, 4034 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4035 .start_pmsr = ieee80211_start_pmsr, 4036 .abort_pmsr = ieee80211_abort_pmsr, 4037 .probe_mesh_link = ieee80211_probe_mesh_link, 4038 }; 4039