cfg.c revision d91df0e3a1b9a7427785cb8d28be073df9b18b78
1/* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * 6 * This file is GPLv2 as found in COPYING. 7 */ 8 9#include <linux/ieee80211.h> 10#include <linux/nl80211.h> 11#include <linux/rtnetlink.h> 12#include <linux/slab.h> 13#include <net/net_namespace.h> 14#include <linux/rcupdate.h> 15#include <linux/if_ether.h> 16#include <net/cfg80211.h> 17#include "ieee80211_i.h" 18#include "driver-ops.h" 19#include "cfg.h" 20#include "rate.h" 21#include "mesh.h" 22 23static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name, 24 enum nl80211_iftype type, 25 u32 *flags, 26 struct vif_params *params) 27{ 28 struct ieee80211_local *local = wiphy_priv(wiphy); 29 struct net_device *dev; 30 struct ieee80211_sub_if_data *sdata; 31 int err; 32 33 err = ieee80211_if_add(local, name, &dev, type, params); 34 if (err) 35 return ERR_PTR(err); 36 37 if (type == NL80211_IFTYPE_MONITOR && flags) { 38 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 39 sdata->u.mntr_flags = *flags; 40 } 41 42 return dev; 43} 44 45static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) 46{ 47 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev)); 48 49 return 0; 50} 51 52static int ieee80211_change_iface(struct wiphy *wiphy, 53 struct net_device *dev, 54 enum nl80211_iftype type, u32 *flags, 55 struct vif_params *params) 56{ 57 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 58 int ret; 59 60 ret = ieee80211_if_change_type(sdata, type); 61 if (ret) 62 return ret; 63 64 if (type == NL80211_IFTYPE_AP_VLAN && 65 params && params->use_4addr == 0) 66 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 67 else if (type == NL80211_IFTYPE_STATION && 68 params && params->use_4addr >= 0) 69 sdata->u.mgd.use_4addr = params->use_4addr; 70 71 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { 72 struct ieee80211_local *local = sdata->local; 73 74 if (ieee80211_sdata_running(sdata)) { 75 /* 76 * Prohibit MONITOR_FLAG_COOK_FRAMES to be 77 * changed while the interface is up. 78 * Else we would need to add a lot of cruft 79 * to update everything: 80 * cooked_mntrs, monitor and all fif_* counters 81 * reconfigure hardware 82 */ 83 if ((*flags & MONITOR_FLAG_COOK_FRAMES) != 84 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) 85 return -EBUSY; 86 87 ieee80211_adjust_monitor_flags(sdata, -1); 88 sdata->u.mntr_flags = *flags; 89 ieee80211_adjust_monitor_flags(sdata, 1); 90 91 ieee80211_configure_filter(local); 92 } else { 93 /* 94 * Because the interface is down, ieee80211_do_stop 95 * and ieee80211_do_open take care of "everything" 96 * mentioned in the comment above. 97 */ 98 sdata->u.mntr_flags = *flags; 99 } 100 } 101 102 return 0; 103} 104 105static int ieee80211_set_noack_map(struct wiphy *wiphy, 106 struct net_device *dev, 107 u16 noack_map) 108{ 109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 110 111 sdata->noack_map = noack_map; 112 return 0; 113} 114 115static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 116 u8 key_idx, bool pairwise, const u8 *mac_addr, 117 struct key_params *params) 118{ 119 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 120 struct sta_info *sta = NULL; 121 struct ieee80211_key *key; 122 int err; 123 124 if (!ieee80211_sdata_running(sdata)) 125 return -ENETDOWN; 126 127 /* reject WEP and TKIP keys if WEP failed to initialize */ 128 switch (params->cipher) { 129 case WLAN_CIPHER_SUITE_WEP40: 130 case WLAN_CIPHER_SUITE_TKIP: 131 case WLAN_CIPHER_SUITE_WEP104: 132 if (IS_ERR(sdata->local->wep_tx_tfm)) 133 return -EINVAL; 134 break; 135 default: 136 break; 137 } 138 139 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 140 params->key, params->seq_len, params->seq); 141 if (IS_ERR(key)) 142 return PTR_ERR(key); 143 144 if (pairwise) 145 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 146 147 mutex_lock(&sdata->local->sta_mtx); 148 149 if (mac_addr) { 150 if (ieee80211_vif_is_mesh(&sdata->vif)) 151 sta = sta_info_get(sdata, mac_addr); 152 else 153 sta = sta_info_get_bss(sdata, mac_addr); 154 if (!sta) { 155 ieee80211_key_free(sdata->local, key); 156 err = -ENOENT; 157 goto out_unlock; 158 } 159 } 160 161 err = ieee80211_key_link(key, sdata, sta); 162 if (err) 163 ieee80211_key_free(sdata->local, key); 164 165 out_unlock: 166 mutex_unlock(&sdata->local->sta_mtx); 167 168 return err; 169} 170 171static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 172 u8 key_idx, bool pairwise, const u8 *mac_addr) 173{ 174 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 175 struct ieee80211_local *local = sdata->local; 176 struct sta_info *sta; 177 struct ieee80211_key *key = NULL; 178 int ret; 179 180 mutex_lock(&local->sta_mtx); 181 mutex_lock(&local->key_mtx); 182 183 if (mac_addr) { 184 ret = -ENOENT; 185 186 sta = sta_info_get_bss(sdata, mac_addr); 187 if (!sta) 188 goto out_unlock; 189 190 if (pairwise) 191 key = key_mtx_dereference(local, sta->ptk); 192 else 193 key = key_mtx_dereference(local, sta->gtk[key_idx]); 194 } else 195 key = key_mtx_dereference(local, sdata->keys[key_idx]); 196 197 if (!key) { 198 ret = -ENOENT; 199 goto out_unlock; 200 } 201 202 __ieee80211_key_free(key); 203 204 ret = 0; 205 out_unlock: 206 mutex_unlock(&local->key_mtx); 207 mutex_unlock(&local->sta_mtx); 208 209 return ret; 210} 211 212static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 213 u8 key_idx, bool pairwise, const u8 *mac_addr, 214 void *cookie, 215 void (*callback)(void *cookie, 216 struct key_params *params)) 217{ 218 struct ieee80211_sub_if_data *sdata; 219 struct sta_info *sta = NULL; 220 u8 seq[6] = {0}; 221 struct key_params params; 222 struct ieee80211_key *key = NULL; 223 u64 pn64; 224 u32 iv32; 225 u16 iv16; 226 int err = -ENOENT; 227 228 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 229 230 rcu_read_lock(); 231 232 if (mac_addr) { 233 sta = sta_info_get_bss(sdata, mac_addr); 234 if (!sta) 235 goto out; 236 237 if (pairwise) 238 key = rcu_dereference(sta->ptk); 239 else if (key_idx < NUM_DEFAULT_KEYS) 240 key = rcu_dereference(sta->gtk[key_idx]); 241 } else 242 key = rcu_dereference(sdata->keys[key_idx]); 243 244 if (!key) 245 goto out; 246 247 memset(¶ms, 0, sizeof(params)); 248 249 params.cipher = key->conf.cipher; 250 251 switch (key->conf.cipher) { 252 case WLAN_CIPHER_SUITE_TKIP: 253 iv32 = key->u.tkip.tx.iv32; 254 iv16 = key->u.tkip.tx.iv16; 255 256 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 257 drv_get_tkip_seq(sdata->local, 258 key->conf.hw_key_idx, 259 &iv32, &iv16); 260 261 seq[0] = iv16 & 0xff; 262 seq[1] = (iv16 >> 8) & 0xff; 263 seq[2] = iv32 & 0xff; 264 seq[3] = (iv32 >> 8) & 0xff; 265 seq[4] = (iv32 >> 16) & 0xff; 266 seq[5] = (iv32 >> 24) & 0xff; 267 params.seq = seq; 268 params.seq_len = 6; 269 break; 270 case WLAN_CIPHER_SUITE_CCMP: 271 pn64 = atomic64_read(&key->u.ccmp.tx_pn); 272 seq[0] = pn64; 273 seq[1] = pn64 >> 8; 274 seq[2] = pn64 >> 16; 275 seq[3] = pn64 >> 24; 276 seq[4] = pn64 >> 32; 277 seq[5] = pn64 >> 40; 278 params.seq = seq; 279 params.seq_len = 6; 280 break; 281 case WLAN_CIPHER_SUITE_AES_CMAC: 282 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); 283 seq[0] = pn64; 284 seq[1] = pn64 >> 8; 285 seq[2] = pn64 >> 16; 286 seq[3] = pn64 >> 24; 287 seq[4] = pn64 >> 32; 288 seq[5] = pn64 >> 40; 289 params.seq = seq; 290 params.seq_len = 6; 291 break; 292 } 293 294 params.key = key->conf.key; 295 params.key_len = key->conf.keylen; 296 297 callback(cookie, ¶ms); 298 err = 0; 299 300 out: 301 rcu_read_unlock(); 302 return err; 303} 304 305static int ieee80211_config_default_key(struct wiphy *wiphy, 306 struct net_device *dev, 307 u8 key_idx, bool uni, 308 bool multi) 309{ 310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 311 312 ieee80211_set_default_key(sdata, key_idx, uni, multi); 313 314 return 0; 315} 316 317static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 318 struct net_device *dev, 319 u8 key_idx) 320{ 321 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 322 323 ieee80211_set_default_mgmt_key(sdata, key_idx); 324 325 return 0; 326} 327 328static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx) 329{ 330 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) { 331 struct ieee80211_supported_band *sband; 332 sband = sta->local->hw.wiphy->bands[ 333 sta->local->hw.conf.channel->band]; 334 rate->legacy = sband->bitrates[idx].bitrate; 335 } else 336 rate->mcs = idx; 337} 338 339void sta_set_rate_info_tx(struct sta_info *sta, 340 const struct ieee80211_tx_rate *rate, 341 struct rate_info *rinfo) 342{ 343 rinfo->flags = 0; 344 if (rate->flags & IEEE80211_TX_RC_MCS) 345 rinfo->flags |= RATE_INFO_FLAGS_MCS; 346 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 347 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 348 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 349 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 350 rate_idx_to_bitrate(rinfo, sta, rate->idx); 351} 352 353static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 354{ 355 struct ieee80211_sub_if_data *sdata = sta->sdata; 356 struct timespec uptime; 357 358 sinfo->generation = sdata->local->sta_generation; 359 360 sinfo->filled = STATION_INFO_INACTIVE_TIME | 361 STATION_INFO_RX_BYTES | 362 STATION_INFO_TX_BYTES | 363 STATION_INFO_RX_PACKETS | 364 STATION_INFO_TX_PACKETS | 365 STATION_INFO_TX_RETRIES | 366 STATION_INFO_TX_FAILED | 367 STATION_INFO_TX_BITRATE | 368 STATION_INFO_RX_BITRATE | 369 STATION_INFO_RX_DROP_MISC | 370 STATION_INFO_BSS_PARAM | 371 STATION_INFO_CONNECTED_TIME | 372 STATION_INFO_STA_FLAGS | 373 STATION_INFO_BEACON_LOSS_COUNT; 374 375 do_posix_clock_monotonic_gettime(&uptime); 376 sinfo->connected_time = uptime.tv_sec - sta->last_connected; 377 378 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); 379 sinfo->rx_bytes = sta->rx_bytes; 380 sinfo->tx_bytes = sta->tx_bytes; 381 sinfo->rx_packets = sta->rx_packets; 382 sinfo->tx_packets = sta->tx_packets; 383 sinfo->tx_retries = sta->tx_retry_count; 384 sinfo->tx_failed = sta->tx_retry_failed; 385 sinfo->rx_dropped_misc = sta->rx_dropped; 386 sinfo->beacon_loss_count = sta->beacon_loss_count; 387 388 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || 389 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { 390 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; 391 sinfo->signal = (s8)sta->last_signal; 392 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); 393 } 394 395 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); 396 397 sinfo->rxrate.flags = 0; 398 if (sta->last_rx_rate_flag & RX_FLAG_HT) 399 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS; 400 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 401 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 402 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 403 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 404 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx); 405 406 if (ieee80211_vif_is_mesh(&sdata->vif)) { 407#ifdef CONFIG_MAC80211_MESH 408 sinfo->filled |= STATION_INFO_LLID | 409 STATION_INFO_PLID | 410 STATION_INFO_PLINK_STATE; 411 412 sinfo->llid = le16_to_cpu(sta->llid); 413 sinfo->plid = le16_to_cpu(sta->plid); 414 sinfo->plink_state = sta->plink_state; 415 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { 416 sinfo->filled |= STATION_INFO_T_OFFSET; 417 sinfo->t_offset = sta->t_offset; 418 } 419#endif 420 } 421 422 sinfo->bss_param.flags = 0; 423 if (sdata->vif.bss_conf.use_cts_prot) 424 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 425 if (sdata->vif.bss_conf.use_short_preamble) 426 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 427 if (sdata->vif.bss_conf.use_short_slot) 428 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 429 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; 430 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; 431 432 sinfo->sta_flags.set = 0; 433 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | 434 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | 435 BIT(NL80211_STA_FLAG_WME) | 436 BIT(NL80211_STA_FLAG_MFP) | 437 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 438 BIT(NL80211_STA_FLAG_TDLS_PEER); 439 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 440 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 441 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) 442 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 443 if (test_sta_flag(sta, WLAN_STA_WME)) 444 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); 445 if (test_sta_flag(sta, WLAN_STA_MFP)) 446 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); 447 if (test_sta_flag(sta, WLAN_STA_AUTH)) 448 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 449 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 450 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 451} 452 453 454static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 455 int idx, u8 *mac, struct station_info *sinfo) 456{ 457 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 458 struct sta_info *sta; 459 int ret = -ENOENT; 460 461 rcu_read_lock(); 462 463 sta = sta_info_get_by_idx(sdata, idx); 464 if (sta) { 465 ret = 0; 466 memcpy(mac, sta->sta.addr, ETH_ALEN); 467 sta_set_sinfo(sta, sinfo); 468 } 469 470 rcu_read_unlock(); 471 472 return ret; 473} 474 475static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 476 int idx, struct survey_info *survey) 477{ 478 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 479 480 return drv_get_survey(local, idx, survey); 481} 482 483static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 484 u8 *mac, struct station_info *sinfo) 485{ 486 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 487 struct sta_info *sta; 488 int ret = -ENOENT; 489 490 rcu_read_lock(); 491 492 sta = sta_info_get_bss(sdata, mac); 493 if (sta) { 494 ret = 0; 495 sta_set_sinfo(sta, sinfo); 496 } 497 498 rcu_read_unlock(); 499 500 return ret; 501} 502 503static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 504 const u8 *resp, size_t resp_len) 505{ 506 struct sk_buff *new, *old; 507 508 if (!resp || !resp_len) 509 return 1; 510 511 old = rtnl_dereference(sdata->u.ap.probe_resp); 512 513 new = dev_alloc_skb(resp_len); 514 if (!new) 515 return -ENOMEM; 516 517 memcpy(skb_put(new, resp_len), resp, resp_len); 518 519 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 520 if (old) { 521 /* TODO: use call_rcu() */ 522 synchronize_rcu(); 523 dev_kfree_skb(old); 524 } 525 526 return 0; 527} 528 529static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 530 struct cfg80211_beacon_data *params) 531{ 532 struct beacon_data *new, *old; 533 int new_head_len, new_tail_len; 534 int size, err; 535 u32 changed = BSS_CHANGED_BEACON; 536 537 old = rtnl_dereference(sdata->u.ap.beacon); 538 539 /* Need to have a beacon head if we don't have one yet */ 540 if (!params->head && !old) 541 return -EINVAL; 542 543 /* new or old head? */ 544 if (params->head) 545 new_head_len = params->head_len; 546 else 547 new_head_len = old->head_len; 548 549 /* new or old tail? */ 550 if (params->tail || !old) 551 /* params->tail_len will be zero for !params->tail */ 552 new_tail_len = params->tail_len; 553 else 554 new_tail_len = old->tail_len; 555 556 size = sizeof(*new) + new_head_len + new_tail_len; 557 558 new = kzalloc(size, GFP_KERNEL); 559 if (!new) 560 return -ENOMEM; 561 562 /* start filling the new info now */ 563 564 /* 565 * pointers go into the block we allocated, 566 * memory is | beacon_data | head | tail | 567 */ 568 new->head = ((u8 *) new) + sizeof(*new); 569 new->tail = new->head + new_head_len; 570 new->head_len = new_head_len; 571 new->tail_len = new_tail_len; 572 573 /* copy in head */ 574 if (params->head) 575 memcpy(new->head, params->head, new_head_len); 576 else 577 memcpy(new->head, old->head, new_head_len); 578 579 /* copy in optional tail */ 580 if (params->tail) 581 memcpy(new->tail, params->tail, new_tail_len); 582 else 583 if (old) 584 memcpy(new->tail, old->tail, new_tail_len); 585 586 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 587 params->probe_resp_len); 588 if (err < 0) 589 return err; 590 if (err == 0) 591 changed |= BSS_CHANGED_AP_PROBE_RESP; 592 593 rcu_assign_pointer(sdata->u.ap.beacon, new); 594 595 if (old) 596 kfree_rcu(old, rcu_head); 597 598 return changed; 599} 600 601static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 602 struct cfg80211_ap_settings *params) 603{ 604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 605 struct beacon_data *old; 606 struct ieee80211_sub_if_data *vlan; 607 u32 changed = BSS_CHANGED_BEACON_INT | 608 BSS_CHANGED_BEACON_ENABLED | 609 BSS_CHANGED_BEACON | 610 BSS_CHANGED_SSID; 611 int err; 612 613 old = rtnl_dereference(sdata->u.ap.beacon); 614 if (old) 615 return -EALREADY; 616 617 /* 618 * Apply control port protocol, this allows us to 619 * not encrypt dynamic WEP control frames. 620 */ 621 sdata->control_port_protocol = params->crypto.control_port_ethertype; 622 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 623 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 624 vlan->control_port_protocol = 625 params->crypto.control_port_ethertype; 626 vlan->control_port_no_encrypt = 627 params->crypto.control_port_no_encrypt; 628 } 629 630 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 631 sdata->vif.bss_conf.dtim_period = params->dtim_period; 632 633 sdata->vif.bss_conf.ssid_len = params->ssid_len; 634 if (params->ssid_len) 635 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 636 params->ssid_len); 637 sdata->vif.bss_conf.hidden_ssid = 638 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 639 640 err = ieee80211_assign_beacon(sdata, ¶ms->beacon); 641 if (err < 0) 642 return err; 643 changed |= err; 644 645 ieee80211_bss_info_change_notify(sdata, changed); 646 647 netif_carrier_on(dev); 648 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 649 netif_carrier_on(vlan->dev); 650 651 return 0; 652} 653 654static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 655 struct cfg80211_beacon_data *params) 656{ 657 struct ieee80211_sub_if_data *sdata; 658 struct beacon_data *old; 659 int err; 660 661 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 662 663 old = rtnl_dereference(sdata->u.ap.beacon); 664 if (!old) 665 return -ENOENT; 666 667 err = ieee80211_assign_beacon(sdata, params); 668 if (err < 0) 669 return err; 670 ieee80211_bss_info_change_notify(sdata, err); 671 return 0; 672} 673 674static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 675{ 676 struct ieee80211_sub_if_data *sdata, *vlan; 677 struct beacon_data *old; 678 679 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 680 681 old = rtnl_dereference(sdata->u.ap.beacon); 682 if (!old) 683 return -ENOENT; 684 685 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 686 netif_carrier_off(vlan->dev); 687 netif_carrier_off(dev); 688 689 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 690 691 kfree_rcu(old, rcu_head); 692 693 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 694 695 return 0; 696} 697 698/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 699struct iapp_layer2_update { 700 u8 da[ETH_ALEN]; /* broadcast */ 701 u8 sa[ETH_ALEN]; /* STA addr */ 702 __be16 len; /* 6 */ 703 u8 dsap; /* 0 */ 704 u8 ssap; /* 0 */ 705 u8 control; 706 u8 xid_info[3]; 707} __packed; 708 709static void ieee80211_send_layer2_update(struct sta_info *sta) 710{ 711 struct iapp_layer2_update *msg; 712 struct sk_buff *skb; 713 714 /* Send Level 2 Update Frame to update forwarding tables in layer 2 715 * bridge devices */ 716 717 skb = dev_alloc_skb(sizeof(*msg)); 718 if (!skb) 719 return; 720 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 721 722 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 723 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 724 725 memset(msg->da, 0xff, ETH_ALEN); 726 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 727 msg->len = htons(6); 728 msg->dsap = 0; 729 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 730 msg->control = 0xaf; /* XID response lsb.1111F101. 731 * F=0 (no poll command; unsolicited frame) */ 732 msg->xid_info[0] = 0x81; /* XID format identifier */ 733 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 734 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 735 736 skb->dev = sta->sdata->dev; 737 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 738 memset(skb->cb, 0, sizeof(skb->cb)); 739 netif_rx_ni(skb); 740} 741 742static int sta_apply_parameters(struct ieee80211_local *local, 743 struct sta_info *sta, 744 struct station_parameters *params) 745{ 746 int ret = 0; 747 u32 rates; 748 int i, j; 749 struct ieee80211_supported_band *sband; 750 struct ieee80211_sub_if_data *sdata = sta->sdata; 751 u32 mask, set; 752 753 sband = local->hw.wiphy->bands[local->oper_channel->band]; 754 755 mask = params->sta_flags_mask; 756 set = params->sta_flags_set; 757 758 /* 759 * In mesh mode, we can clear AUTHENTICATED flag but must 760 * also make ASSOCIATED follow appropriately for the driver 761 * API. See also below, after AUTHORIZED changes. 762 */ 763 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) { 764 /* cfg80211 should not allow this in non-mesh modes */ 765 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif))) 766 return -EINVAL; 767 768 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 769 !test_sta_flag(sta, WLAN_STA_AUTH)) { 770 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 771 if (ret) 772 return ret; 773 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 774 if (ret) 775 return ret; 776 } 777 } 778 779 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 780 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 781 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 782 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 783 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 784 if (ret) 785 return ret; 786 } 787 788 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) { 789 /* cfg80211 should not allow this in non-mesh modes */ 790 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif))) 791 return -EINVAL; 792 793 if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 794 test_sta_flag(sta, WLAN_STA_AUTH)) { 795 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 796 if (ret) 797 return ret; 798 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 799 if (ret) 800 return ret; 801 } 802 } 803 804 805 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 806 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 807 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 808 else 809 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 810 } 811 812 if (mask & BIT(NL80211_STA_FLAG_WME)) { 813 if (set & BIT(NL80211_STA_FLAG_WME)) { 814 set_sta_flag(sta, WLAN_STA_WME); 815 sta->sta.wme = true; 816 } else { 817 clear_sta_flag(sta, WLAN_STA_WME); 818 sta->sta.wme = false; 819 } 820 } 821 822 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 823 if (set & BIT(NL80211_STA_FLAG_MFP)) 824 set_sta_flag(sta, WLAN_STA_MFP); 825 else 826 clear_sta_flag(sta, WLAN_STA_MFP); 827 } 828 829 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 830 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 831 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 832 else 833 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 834 } 835 836 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 837 sta->sta.uapsd_queues = params->uapsd_queues; 838 sta->sta.max_sp = params->max_sp; 839 } 840 841 /* 842 * cfg80211 validates this (1-2007) and allows setting the AID 843 * only when creating a new station entry 844 */ 845 if (params->aid) 846 sta->sta.aid = params->aid; 847 848 /* 849 * FIXME: updating the following information is racy when this 850 * function is called from ieee80211_change_station(). 851 * However, all this information should be static so 852 * maybe we should just reject attemps to change it. 853 */ 854 855 if (params->listen_interval >= 0) 856 sta->listen_interval = params->listen_interval; 857 858 if (params->supported_rates) { 859 rates = 0; 860 861 for (i = 0; i < params->supported_rates_len; i++) { 862 int rate = (params->supported_rates[i] & 0x7f) * 5; 863 for (j = 0; j < sband->n_bitrates; j++) { 864 if (sband->bitrates[j].bitrate == rate) 865 rates |= BIT(j); 866 } 867 } 868 sta->sta.supp_rates[local->oper_channel->band] = rates; 869 } 870 871 if (params->ht_capa) 872 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 873 params->ht_capa, 874 &sta->sta.ht_cap); 875 876 if (ieee80211_vif_is_mesh(&sdata->vif)) { 877#ifdef CONFIG_MAC80211_MESH 878 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) 879 switch (params->plink_state) { 880 case NL80211_PLINK_LISTEN: 881 case NL80211_PLINK_ESTAB: 882 case NL80211_PLINK_BLOCKED: 883 sta->plink_state = params->plink_state; 884 break; 885 default: 886 /* nothing */ 887 break; 888 } 889 else 890 switch (params->plink_action) { 891 case PLINK_ACTION_OPEN: 892 mesh_plink_open(sta); 893 break; 894 case PLINK_ACTION_BLOCK: 895 mesh_plink_block(sta); 896 break; 897 } 898#endif 899 } 900 901 return 0; 902} 903 904static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 905 u8 *mac, struct station_parameters *params) 906{ 907 struct ieee80211_local *local = wiphy_priv(wiphy); 908 struct sta_info *sta; 909 struct ieee80211_sub_if_data *sdata; 910 int err; 911 int layer2_update; 912 913 if (params->vlan) { 914 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 915 916 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 917 sdata->vif.type != NL80211_IFTYPE_AP) 918 return -EINVAL; 919 } else 920 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 921 922 if (compare_ether_addr(mac, sdata->vif.addr) == 0) 923 return -EINVAL; 924 925 if (is_multicast_ether_addr(mac)) 926 return -EINVAL; 927 928 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 929 if (!sta) 930 return -ENOMEM; 931 932 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); 933 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); 934 935 err = sta_apply_parameters(local, sta, params); 936 if (err) { 937 sta_info_free(local, sta); 938 return err; 939 } 940 941 /* 942 * for TDLS, rate control should be initialized only when supported 943 * rates are known. 944 */ 945 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 946 rate_control_rate_init(sta); 947 948 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 949 sdata->vif.type == NL80211_IFTYPE_AP; 950 951 err = sta_info_insert_rcu(sta); 952 if (err) { 953 rcu_read_unlock(); 954 return err; 955 } 956 957 if (layer2_update) 958 ieee80211_send_layer2_update(sta); 959 960 rcu_read_unlock(); 961 962 return 0; 963} 964 965static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 966 u8 *mac) 967{ 968 struct ieee80211_local *local = wiphy_priv(wiphy); 969 struct ieee80211_sub_if_data *sdata; 970 971 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 972 973 if (mac) 974 return sta_info_destroy_addr_bss(sdata, mac); 975 976 sta_info_flush(local, sdata); 977 return 0; 978} 979 980static int ieee80211_change_station(struct wiphy *wiphy, 981 struct net_device *dev, 982 u8 *mac, 983 struct station_parameters *params) 984{ 985 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 986 struct ieee80211_local *local = wiphy_priv(wiphy); 987 struct sta_info *sta; 988 struct ieee80211_sub_if_data *vlansdata; 989 int err; 990 991 mutex_lock(&local->sta_mtx); 992 993 sta = sta_info_get_bss(sdata, mac); 994 if (!sta) { 995 mutex_unlock(&local->sta_mtx); 996 return -ENOENT; 997 } 998 999 /* in station mode, supported rates are only valid with TDLS */ 1000 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1001 params->supported_rates && 1002 !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1003 mutex_unlock(&local->sta_mtx); 1004 return -EINVAL; 1005 } 1006 1007 if (params->vlan && params->vlan != sta->sdata->dev) { 1008 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1009 1010 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1011 vlansdata->vif.type != NL80211_IFTYPE_AP) { 1012 mutex_unlock(&local->sta_mtx); 1013 return -EINVAL; 1014 } 1015 1016 if (params->vlan->ieee80211_ptr->use_4addr) { 1017 if (vlansdata->u.vlan.sta) { 1018 mutex_unlock(&local->sta_mtx); 1019 return -EBUSY; 1020 } 1021 1022 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1023 } 1024 1025 sta->sdata = vlansdata; 1026 ieee80211_send_layer2_update(sta); 1027 } 1028 1029 err = sta_apply_parameters(local, sta, params); 1030 if (err) { 1031 mutex_unlock(&local->sta_mtx); 1032 return err; 1033 } 1034 1035 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates) 1036 rate_control_rate_init(sta); 1037 1038 mutex_unlock(&local->sta_mtx); 1039 1040 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1041 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1042 ieee80211_recalc_ps(local, -1); 1043 1044 return 0; 1045} 1046 1047#ifdef CONFIG_MAC80211_MESH 1048static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1049 u8 *dst, u8 *next_hop) 1050{ 1051 struct ieee80211_sub_if_data *sdata; 1052 struct mesh_path *mpath; 1053 struct sta_info *sta; 1054 int err; 1055 1056 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1057 1058 rcu_read_lock(); 1059 sta = sta_info_get(sdata, next_hop); 1060 if (!sta) { 1061 rcu_read_unlock(); 1062 return -ENOENT; 1063 } 1064 1065 err = mesh_path_add(dst, sdata); 1066 if (err) { 1067 rcu_read_unlock(); 1068 return err; 1069 } 1070 1071 mpath = mesh_path_lookup(dst, sdata); 1072 if (!mpath) { 1073 rcu_read_unlock(); 1074 return -ENXIO; 1075 } 1076 mesh_path_fix_nexthop(mpath, sta); 1077 1078 rcu_read_unlock(); 1079 return 0; 1080} 1081 1082static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1083 u8 *dst) 1084{ 1085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1086 1087 if (dst) 1088 return mesh_path_del(dst, sdata); 1089 1090 mesh_path_flush_by_iface(sdata); 1091 return 0; 1092} 1093 1094static int ieee80211_change_mpath(struct wiphy *wiphy, 1095 struct net_device *dev, 1096 u8 *dst, u8 *next_hop) 1097{ 1098 struct ieee80211_sub_if_data *sdata; 1099 struct mesh_path *mpath; 1100 struct sta_info *sta; 1101 1102 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1103 1104 rcu_read_lock(); 1105 1106 sta = sta_info_get(sdata, next_hop); 1107 if (!sta) { 1108 rcu_read_unlock(); 1109 return -ENOENT; 1110 } 1111 1112 mpath = mesh_path_lookup(dst, sdata); 1113 if (!mpath) { 1114 rcu_read_unlock(); 1115 return -ENOENT; 1116 } 1117 1118 mesh_path_fix_nexthop(mpath, sta); 1119 1120 rcu_read_unlock(); 1121 return 0; 1122} 1123 1124static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1125 struct mpath_info *pinfo) 1126{ 1127 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1128 1129 if (next_hop_sta) 1130 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1131 else 1132 memset(next_hop, 0, ETH_ALEN); 1133 1134 pinfo->generation = mesh_paths_generation; 1135 1136 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1137 MPATH_INFO_SN | 1138 MPATH_INFO_METRIC | 1139 MPATH_INFO_EXPTIME | 1140 MPATH_INFO_DISCOVERY_TIMEOUT | 1141 MPATH_INFO_DISCOVERY_RETRIES | 1142 MPATH_INFO_FLAGS; 1143 1144 pinfo->frame_qlen = mpath->frame_queue.qlen; 1145 pinfo->sn = mpath->sn; 1146 pinfo->metric = mpath->metric; 1147 if (time_before(jiffies, mpath->exp_time)) 1148 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1149 pinfo->discovery_timeout = 1150 jiffies_to_msecs(mpath->discovery_timeout); 1151 pinfo->discovery_retries = mpath->discovery_retries; 1152 pinfo->flags = 0; 1153 if (mpath->flags & MESH_PATH_ACTIVE) 1154 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1155 if (mpath->flags & MESH_PATH_RESOLVING) 1156 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1157 if (mpath->flags & MESH_PATH_SN_VALID) 1158 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1159 if (mpath->flags & MESH_PATH_FIXED) 1160 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1161 if (mpath->flags & MESH_PATH_RESOLVING) 1162 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1163 1164 pinfo->flags = mpath->flags; 1165} 1166 1167static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1168 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1169 1170{ 1171 struct ieee80211_sub_if_data *sdata; 1172 struct mesh_path *mpath; 1173 1174 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1175 1176 rcu_read_lock(); 1177 mpath = mesh_path_lookup(dst, sdata); 1178 if (!mpath) { 1179 rcu_read_unlock(); 1180 return -ENOENT; 1181 } 1182 memcpy(dst, mpath->dst, ETH_ALEN); 1183 mpath_set_pinfo(mpath, next_hop, pinfo); 1184 rcu_read_unlock(); 1185 return 0; 1186} 1187 1188static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1189 int idx, u8 *dst, u8 *next_hop, 1190 struct mpath_info *pinfo) 1191{ 1192 struct ieee80211_sub_if_data *sdata; 1193 struct mesh_path *mpath; 1194 1195 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1196 1197 rcu_read_lock(); 1198 mpath = mesh_path_lookup_by_idx(idx, sdata); 1199 if (!mpath) { 1200 rcu_read_unlock(); 1201 return -ENOENT; 1202 } 1203 memcpy(dst, mpath->dst, ETH_ALEN); 1204 mpath_set_pinfo(mpath, next_hop, pinfo); 1205 rcu_read_unlock(); 1206 return 0; 1207} 1208 1209static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1210 struct net_device *dev, 1211 struct mesh_config *conf) 1212{ 1213 struct ieee80211_sub_if_data *sdata; 1214 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1215 1216 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1217 return 0; 1218} 1219 1220static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1221{ 1222 return (mask >> (parm-1)) & 0x1; 1223} 1224 1225static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1226 const struct mesh_setup *setup) 1227{ 1228 u8 *new_ie; 1229 const u8 *old_ie; 1230 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1231 struct ieee80211_sub_if_data, u.mesh); 1232 1233 /* allocate information elements */ 1234 new_ie = NULL; 1235 old_ie = ifmsh->ie; 1236 1237 if (setup->ie_len) { 1238 new_ie = kmemdup(setup->ie, setup->ie_len, 1239 GFP_KERNEL); 1240 if (!new_ie) 1241 return -ENOMEM; 1242 } 1243 ifmsh->ie_len = setup->ie_len; 1244 ifmsh->ie = new_ie; 1245 kfree(old_ie); 1246 1247 /* now copy the rest of the setup parameters */ 1248 ifmsh->mesh_id_len = setup->mesh_id_len; 1249 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1250 ifmsh->mesh_sp_id = setup->sync_method; 1251 ifmsh->mesh_pp_id = setup->path_sel_proto; 1252 ifmsh->mesh_pm_id = setup->path_metric; 1253 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1254 if (setup->is_authenticated) 1255 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1256 if (setup->is_secure) 1257 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1258 1259 /* mcast rate setting in Mesh Node */ 1260 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1261 sizeof(setup->mcast_rate)); 1262 1263 return 0; 1264} 1265 1266static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1267 struct net_device *dev, u32 mask, 1268 const struct mesh_config *nconf) 1269{ 1270 struct mesh_config *conf; 1271 struct ieee80211_sub_if_data *sdata; 1272 struct ieee80211_if_mesh *ifmsh; 1273 1274 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1275 ifmsh = &sdata->u.mesh; 1276 1277 /* Set the config options which we are interested in setting */ 1278 conf = &(sdata->u.mesh.mshcfg); 1279 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1280 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1281 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1282 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1283 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1284 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1285 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1286 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1287 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1288 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1289 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1290 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1291 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1292 conf->dot11MeshTTL = nconf->element_ttl; 1293 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) 1294 conf->auto_open_plinks = nconf->auto_open_plinks; 1295 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1296 conf->dot11MeshNbrOffsetMaxNeighbor = 1297 nconf->dot11MeshNbrOffsetMaxNeighbor; 1298 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1299 conf->dot11MeshHWMPmaxPREQretries = 1300 nconf->dot11MeshHWMPmaxPREQretries; 1301 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1302 conf->path_refresh_time = nconf->path_refresh_time; 1303 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1304 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1305 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1306 conf->dot11MeshHWMPactivePathTimeout = 1307 nconf->dot11MeshHWMPactivePathTimeout; 1308 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1309 conf->dot11MeshHWMPpreqMinInterval = 1310 nconf->dot11MeshHWMPpreqMinInterval; 1311 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1312 conf->dot11MeshHWMPperrMinInterval = 1313 nconf->dot11MeshHWMPperrMinInterval; 1314 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1315 mask)) 1316 conf->dot11MeshHWMPnetDiameterTraversalTime = 1317 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1318 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1319 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1320 ieee80211_mesh_root_setup(ifmsh); 1321 } 1322 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1323 /* our current gate announcement implementation rides on root 1324 * announcements, so require this ifmsh to also be a root node 1325 * */ 1326 if (nconf->dot11MeshGateAnnouncementProtocol && 1327 !conf->dot11MeshHWMPRootMode) { 1328 conf->dot11MeshHWMPRootMode = 1; 1329 ieee80211_mesh_root_setup(ifmsh); 1330 } 1331 conf->dot11MeshGateAnnouncementProtocol = 1332 nconf->dot11MeshGateAnnouncementProtocol; 1333 } 1334 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) { 1335 conf->dot11MeshHWMPRannInterval = 1336 nconf->dot11MeshHWMPRannInterval; 1337 } 1338 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1339 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1340 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1341 /* our RSSI threshold implementation is supported only for 1342 * devices that report signal in dBm. 1343 */ 1344 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) 1345 return -ENOTSUPP; 1346 conf->rssi_threshold = nconf->rssi_threshold; 1347 } 1348 return 0; 1349} 1350 1351static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1352 const struct mesh_config *conf, 1353 const struct mesh_setup *setup) 1354{ 1355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1356 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1357 int err; 1358 1359 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1360 err = copy_mesh_setup(ifmsh, setup); 1361 if (err) 1362 return err; 1363 ieee80211_start_mesh(sdata); 1364 1365 return 0; 1366} 1367 1368static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1369{ 1370 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1371 1372 ieee80211_stop_mesh(sdata); 1373 1374 return 0; 1375} 1376#endif 1377 1378static int ieee80211_change_bss(struct wiphy *wiphy, 1379 struct net_device *dev, 1380 struct bss_parameters *params) 1381{ 1382 struct ieee80211_sub_if_data *sdata; 1383 u32 changed = 0; 1384 1385 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1386 1387 if (params->use_cts_prot >= 0) { 1388 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1389 changed |= BSS_CHANGED_ERP_CTS_PROT; 1390 } 1391 if (params->use_short_preamble >= 0) { 1392 sdata->vif.bss_conf.use_short_preamble = 1393 params->use_short_preamble; 1394 changed |= BSS_CHANGED_ERP_PREAMBLE; 1395 } 1396 1397 if (!sdata->vif.bss_conf.use_short_slot && 1398 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) { 1399 sdata->vif.bss_conf.use_short_slot = true; 1400 changed |= BSS_CHANGED_ERP_SLOT; 1401 } 1402 1403 if (params->use_short_slot_time >= 0) { 1404 sdata->vif.bss_conf.use_short_slot = 1405 params->use_short_slot_time; 1406 changed |= BSS_CHANGED_ERP_SLOT; 1407 } 1408 1409 if (params->basic_rates) { 1410 int i, j; 1411 u32 rates = 0; 1412 struct ieee80211_local *local = wiphy_priv(wiphy); 1413 struct ieee80211_supported_band *sband = 1414 wiphy->bands[local->oper_channel->band]; 1415 1416 for (i = 0; i < params->basic_rates_len; i++) { 1417 int rate = (params->basic_rates[i] & 0x7f) * 5; 1418 for (j = 0; j < sband->n_bitrates; j++) { 1419 if (sband->bitrates[j].bitrate == rate) 1420 rates |= BIT(j); 1421 } 1422 } 1423 sdata->vif.bss_conf.basic_rates = rates; 1424 changed |= BSS_CHANGED_BASIC_RATES; 1425 } 1426 1427 if (params->ap_isolate >= 0) { 1428 if (params->ap_isolate) 1429 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1430 else 1431 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1432 } 1433 1434 if (params->ht_opmode >= 0) { 1435 sdata->vif.bss_conf.ht_operation_mode = 1436 (u16) params->ht_opmode; 1437 changed |= BSS_CHANGED_HT; 1438 } 1439 1440 ieee80211_bss_info_change_notify(sdata, changed); 1441 1442 return 0; 1443} 1444 1445static int ieee80211_set_txq_params(struct wiphy *wiphy, 1446 struct net_device *dev, 1447 struct ieee80211_txq_params *params) 1448{ 1449 struct ieee80211_local *local = wiphy_priv(wiphy); 1450 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1451 struct ieee80211_tx_queue_params p; 1452 1453 if (!local->ops->conf_tx) 1454 return -EOPNOTSUPP; 1455 1456 if (local->hw.queues < IEEE80211_NUM_ACS) 1457 return -EOPNOTSUPP; 1458 1459 memset(&p, 0, sizeof(p)); 1460 p.aifs = params->aifs; 1461 p.cw_max = params->cwmax; 1462 p.cw_min = params->cwmin; 1463 p.txop = params->txop; 1464 1465 /* 1466 * Setting tx queue params disables u-apsd because it's only 1467 * called in master mode. 1468 */ 1469 p.uapsd = false; 1470 1471 sdata->tx_conf[params->ac] = p; 1472 if (drv_conf_tx(local, sdata, params->ac, &p)) { 1473 wiphy_debug(local->hw.wiphy, 1474 "failed to set TX queue parameters for AC %d\n", 1475 params->ac); 1476 return -EINVAL; 1477 } 1478 1479 return 0; 1480} 1481 1482static int ieee80211_set_channel(struct wiphy *wiphy, 1483 struct net_device *netdev, 1484 struct ieee80211_channel *chan, 1485 enum nl80211_channel_type channel_type) 1486{ 1487 struct ieee80211_local *local = wiphy_priv(wiphy); 1488 struct ieee80211_sub_if_data *sdata = NULL; 1489 struct ieee80211_channel *old_oper; 1490 enum nl80211_channel_type old_oper_type; 1491 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT; 1492 1493 if (netdev) 1494 sdata = IEEE80211_DEV_TO_SUB_IF(netdev); 1495 1496 switch (ieee80211_get_channel_mode(local, NULL)) { 1497 case CHAN_MODE_HOPPING: 1498 return -EBUSY; 1499 case CHAN_MODE_FIXED: 1500 if (local->oper_channel != chan) 1501 return -EBUSY; 1502 if (!sdata && local->_oper_channel_type == channel_type) 1503 return 0; 1504 break; 1505 case CHAN_MODE_UNDEFINED: 1506 break; 1507 } 1508 1509 if (sdata) 1510 old_vif_oper_type = sdata->vif.bss_conf.channel_type; 1511 old_oper_type = local->_oper_channel_type; 1512 1513 if (!ieee80211_set_channel_type(local, sdata, channel_type)) 1514 return -EBUSY; 1515 1516 old_oper = local->oper_channel; 1517 local->oper_channel = chan; 1518 1519 /* Update driver if changes were actually made. */ 1520 if ((old_oper != local->oper_channel) || 1521 (old_oper_type != local->_oper_channel_type)) 1522 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); 1523 1524 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR && 1525 old_vif_oper_type != sdata->vif.bss_conf.channel_type) 1526 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1527 1528 return 0; 1529} 1530 1531#ifdef CONFIG_PM 1532static int ieee80211_suspend(struct wiphy *wiphy, 1533 struct cfg80211_wowlan *wowlan) 1534{ 1535 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 1536} 1537 1538static int ieee80211_resume(struct wiphy *wiphy) 1539{ 1540 return __ieee80211_resume(wiphy_priv(wiphy)); 1541} 1542#else 1543#define ieee80211_suspend NULL 1544#define ieee80211_resume NULL 1545#endif 1546 1547static int ieee80211_scan(struct wiphy *wiphy, 1548 struct net_device *dev, 1549 struct cfg80211_scan_request *req) 1550{ 1551 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1552 1553 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 1554 case NL80211_IFTYPE_STATION: 1555 case NL80211_IFTYPE_ADHOC: 1556 case NL80211_IFTYPE_MESH_POINT: 1557 case NL80211_IFTYPE_P2P_CLIENT: 1558 break; 1559 case NL80211_IFTYPE_P2P_GO: 1560 if (sdata->local->ops->hw_scan) 1561 break; 1562 /* 1563 * FIXME: implement NoA while scanning in software, 1564 * for now fall through to allow scanning only when 1565 * beaconing hasn't been configured yet 1566 */ 1567 case NL80211_IFTYPE_AP: 1568 if (sdata->u.ap.beacon) 1569 return -EOPNOTSUPP; 1570 break; 1571 default: 1572 return -EOPNOTSUPP; 1573 } 1574 1575 return ieee80211_request_scan(sdata, req); 1576} 1577 1578static int 1579ieee80211_sched_scan_start(struct wiphy *wiphy, 1580 struct net_device *dev, 1581 struct cfg80211_sched_scan_request *req) 1582{ 1583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1584 1585 if (!sdata->local->ops->sched_scan_start) 1586 return -EOPNOTSUPP; 1587 1588 return ieee80211_request_sched_scan_start(sdata, req); 1589} 1590 1591static int 1592ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 1593{ 1594 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1595 1596 if (!sdata->local->ops->sched_scan_stop) 1597 return -EOPNOTSUPP; 1598 1599 return ieee80211_request_sched_scan_stop(sdata); 1600} 1601 1602static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 1603 struct cfg80211_auth_request *req) 1604{ 1605 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 1606} 1607 1608static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 1609 struct cfg80211_assoc_request *req) 1610{ 1611 struct ieee80211_local *local = wiphy_priv(wiphy); 1612 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1613 1614 switch (ieee80211_get_channel_mode(local, sdata)) { 1615 case CHAN_MODE_HOPPING: 1616 return -EBUSY; 1617 case CHAN_MODE_FIXED: 1618 if (local->oper_channel == req->bss->channel) 1619 break; 1620 return -EBUSY; 1621 case CHAN_MODE_UNDEFINED: 1622 break; 1623 } 1624 1625 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 1626} 1627 1628static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 1629 struct cfg80211_deauth_request *req) 1630{ 1631 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 1632} 1633 1634static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 1635 struct cfg80211_disassoc_request *req) 1636{ 1637 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 1638} 1639 1640static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 1641 struct cfg80211_ibss_params *params) 1642{ 1643 struct ieee80211_local *local = wiphy_priv(wiphy); 1644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1645 1646 switch (ieee80211_get_channel_mode(local, sdata)) { 1647 case CHAN_MODE_HOPPING: 1648 return -EBUSY; 1649 case CHAN_MODE_FIXED: 1650 if (!params->channel_fixed) 1651 return -EBUSY; 1652 if (local->oper_channel == params->channel) 1653 break; 1654 return -EBUSY; 1655 case CHAN_MODE_UNDEFINED: 1656 break; 1657 } 1658 1659 return ieee80211_ibss_join(sdata, params); 1660} 1661 1662static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 1663{ 1664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1665 1666 return ieee80211_ibss_leave(sdata); 1667} 1668 1669static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1670{ 1671 struct ieee80211_local *local = wiphy_priv(wiphy); 1672 int err; 1673 1674 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 1675 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 1676 1677 if (err) 1678 return err; 1679 } 1680 1681 if (changed & WIPHY_PARAM_COVERAGE_CLASS) { 1682 err = drv_set_coverage_class(local, wiphy->coverage_class); 1683 1684 if (err) 1685 return err; 1686 } 1687 1688 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1689 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 1690 1691 if (err) 1692 return err; 1693 } 1694 1695 if (changed & WIPHY_PARAM_RETRY_SHORT) 1696 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 1697 if (changed & WIPHY_PARAM_RETRY_LONG) 1698 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 1699 if (changed & 1700 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 1701 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 1702 1703 return 0; 1704} 1705 1706static int ieee80211_set_tx_power(struct wiphy *wiphy, 1707 enum nl80211_tx_power_setting type, int mbm) 1708{ 1709 struct ieee80211_local *local = wiphy_priv(wiphy); 1710 struct ieee80211_channel *chan = local->hw.conf.channel; 1711 u32 changes = 0; 1712 1713 switch (type) { 1714 case NL80211_TX_POWER_AUTOMATIC: 1715 local->user_power_level = -1; 1716 break; 1717 case NL80211_TX_POWER_LIMITED: 1718 if (mbm < 0 || (mbm % 100)) 1719 return -EOPNOTSUPP; 1720 local->user_power_level = MBM_TO_DBM(mbm); 1721 break; 1722 case NL80211_TX_POWER_FIXED: 1723 if (mbm < 0 || (mbm % 100)) 1724 return -EOPNOTSUPP; 1725 /* TODO: move to cfg80211 when it knows the channel */ 1726 if (MBM_TO_DBM(mbm) > chan->max_power) 1727 return -EINVAL; 1728 local->user_power_level = MBM_TO_DBM(mbm); 1729 break; 1730 } 1731 1732 ieee80211_hw_config(local, changes); 1733 1734 return 0; 1735} 1736 1737static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) 1738{ 1739 struct ieee80211_local *local = wiphy_priv(wiphy); 1740 1741 *dbm = local->hw.conf.power_level; 1742 1743 return 0; 1744} 1745 1746static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 1747 const u8 *addr) 1748{ 1749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1750 1751 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 1752 1753 return 0; 1754} 1755 1756static void ieee80211_rfkill_poll(struct wiphy *wiphy) 1757{ 1758 struct ieee80211_local *local = wiphy_priv(wiphy); 1759 1760 drv_rfkill_poll(local); 1761} 1762 1763#ifdef CONFIG_NL80211_TESTMODE 1764static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len) 1765{ 1766 struct ieee80211_local *local = wiphy_priv(wiphy); 1767 1768 if (!local->ops->testmode_cmd) 1769 return -EOPNOTSUPP; 1770 1771 return local->ops->testmode_cmd(&local->hw, data, len); 1772} 1773 1774static int ieee80211_testmode_dump(struct wiphy *wiphy, 1775 struct sk_buff *skb, 1776 struct netlink_callback *cb, 1777 void *data, int len) 1778{ 1779 struct ieee80211_local *local = wiphy_priv(wiphy); 1780 1781 if (!local->ops->testmode_dump) 1782 return -EOPNOTSUPP; 1783 1784 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 1785} 1786#endif 1787 1788int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, 1789 enum ieee80211_smps_mode smps_mode) 1790{ 1791 const u8 *ap; 1792 enum ieee80211_smps_mode old_req; 1793 int err; 1794 1795 lockdep_assert_held(&sdata->u.mgd.mtx); 1796 1797 old_req = sdata->u.mgd.req_smps; 1798 sdata->u.mgd.req_smps = smps_mode; 1799 1800 if (old_req == smps_mode && 1801 smps_mode != IEEE80211_SMPS_AUTOMATIC) 1802 return 0; 1803 1804 /* 1805 * If not associated, or current association is not an HT 1806 * association, there's no need to send an action frame. 1807 */ 1808 if (!sdata->u.mgd.associated || 1809 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) { 1810 mutex_lock(&sdata->local->iflist_mtx); 1811 ieee80211_recalc_smps(sdata->local); 1812 mutex_unlock(&sdata->local->iflist_mtx); 1813 return 0; 1814 } 1815 1816 ap = sdata->u.mgd.associated->bssid; 1817 1818 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 1819 if (sdata->u.mgd.powersave) 1820 smps_mode = IEEE80211_SMPS_DYNAMIC; 1821 else 1822 smps_mode = IEEE80211_SMPS_OFF; 1823 } 1824 1825 /* send SM PS frame to AP */ 1826 err = ieee80211_send_smps_action(sdata, smps_mode, 1827 ap, ap); 1828 if (err) 1829 sdata->u.mgd.req_smps = old_req; 1830 1831 return err; 1832} 1833 1834static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 1835 bool enabled, int timeout) 1836{ 1837 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1838 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1839 1840 if (sdata->vif.type != NL80211_IFTYPE_STATION) 1841 return -EOPNOTSUPP; 1842 1843 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 1844 return -EOPNOTSUPP; 1845 1846 if (enabled == sdata->u.mgd.powersave && 1847 timeout == local->dynamic_ps_forced_timeout) 1848 return 0; 1849 1850 sdata->u.mgd.powersave = enabled; 1851 local->dynamic_ps_forced_timeout = timeout; 1852 1853 /* no change, but if automatic follow powersave */ 1854 mutex_lock(&sdata->u.mgd.mtx); 1855 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); 1856 mutex_unlock(&sdata->u.mgd.mtx); 1857 1858 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 1859 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 1860 1861 ieee80211_recalc_ps(local, -1); 1862 1863 return 0; 1864} 1865 1866static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 1867 struct net_device *dev, 1868 s32 rssi_thold, u32 rssi_hyst) 1869{ 1870 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1871 struct ieee80211_vif *vif = &sdata->vif; 1872 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 1873 1874 if (rssi_thold == bss_conf->cqm_rssi_thold && 1875 rssi_hyst == bss_conf->cqm_rssi_hyst) 1876 return 0; 1877 1878 bss_conf->cqm_rssi_thold = rssi_thold; 1879 bss_conf->cqm_rssi_hyst = rssi_hyst; 1880 1881 /* tell the driver upon association, unless already associated */ 1882 if (sdata->u.mgd.associated && 1883 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 1884 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 1885 1886 return 0; 1887} 1888 1889static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 1890 struct net_device *dev, 1891 const u8 *addr, 1892 const struct cfg80211_bitrate_mask *mask) 1893{ 1894 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1895 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1896 int i, ret; 1897 1898 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 1899 ret = drv_set_bitrate_mask(local, sdata, mask); 1900 if (ret) 1901 return ret; 1902 } 1903 1904 for (i = 0; i < IEEE80211_NUM_BANDS; i++) { 1905 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 1906 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs, 1907 sizeof(mask->control[i].mcs)); 1908 } 1909 1910 return 0; 1911} 1912 1913static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local, 1914 struct net_device *dev, 1915 struct ieee80211_channel *chan, 1916 enum nl80211_channel_type chantype, 1917 unsigned int duration, u64 *cookie) 1918{ 1919 int ret; 1920 u32 random_cookie; 1921 1922 lockdep_assert_held(&local->mtx); 1923 1924 if (local->hw_roc_cookie) 1925 return -EBUSY; 1926 /* must be nonzero */ 1927 random_cookie = random32() | 1; 1928 1929 *cookie = random_cookie; 1930 local->hw_roc_dev = dev; 1931 local->hw_roc_cookie = random_cookie; 1932 local->hw_roc_channel = chan; 1933 local->hw_roc_channel_type = chantype; 1934 local->hw_roc_duration = duration; 1935 ret = drv_remain_on_channel(local, chan, chantype, duration); 1936 if (ret) { 1937 local->hw_roc_channel = NULL; 1938 local->hw_roc_cookie = 0; 1939 } 1940 1941 return ret; 1942} 1943 1944static int ieee80211_remain_on_channel(struct wiphy *wiphy, 1945 struct net_device *dev, 1946 struct ieee80211_channel *chan, 1947 enum nl80211_channel_type channel_type, 1948 unsigned int duration, 1949 u64 *cookie) 1950{ 1951 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1952 struct ieee80211_local *local = sdata->local; 1953 1954 if (local->ops->remain_on_channel) { 1955 int ret; 1956 1957 mutex_lock(&local->mtx); 1958 ret = ieee80211_remain_on_channel_hw(local, dev, 1959 chan, channel_type, 1960 duration, cookie); 1961 local->hw_roc_for_tx = false; 1962 mutex_unlock(&local->mtx); 1963 1964 return ret; 1965 } 1966 1967 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, 1968 duration, cookie); 1969} 1970 1971static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local, 1972 u64 cookie) 1973{ 1974 int ret; 1975 1976 lockdep_assert_held(&local->mtx); 1977 1978 if (local->hw_roc_cookie != cookie) 1979 return -ENOENT; 1980 1981 ret = drv_cancel_remain_on_channel(local); 1982 if (ret) 1983 return ret; 1984 1985 local->hw_roc_cookie = 0; 1986 local->hw_roc_channel = NULL; 1987 1988 ieee80211_recalc_idle(local); 1989 1990 return 0; 1991} 1992 1993static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 1994 struct net_device *dev, 1995 u64 cookie) 1996{ 1997 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1998 struct ieee80211_local *local = sdata->local; 1999 2000 if (local->ops->cancel_remain_on_channel) { 2001 int ret; 2002 2003 mutex_lock(&local->mtx); 2004 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); 2005 mutex_unlock(&local->mtx); 2006 2007 return ret; 2008 } 2009 2010 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); 2011} 2012 2013static enum work_done_result 2014ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) 2015{ 2016 /* 2017 * Use the data embedded in the work struct for reporting 2018 * here so if the driver mangled the SKB before dropping 2019 * it (which is the only way we really should get here) 2020 * then we don't report mangled data. 2021 * 2022 * If there was no wait time, then by the time we get here 2023 * the driver will likely not have reported the status yet, 2024 * so in that case userspace will have to deal with it. 2025 */ 2026 2027 if (wk->offchan_tx.wait && !wk->offchan_tx.status) 2028 cfg80211_mgmt_tx_status(wk->sdata->dev, 2029 (unsigned long) wk->offchan_tx.frame, 2030 wk->data, wk->data_len, false, GFP_KERNEL); 2031 2032 return WORK_DONE_DESTROY; 2033} 2034 2035static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, 2036 struct ieee80211_channel *chan, bool offchan, 2037 enum nl80211_channel_type channel_type, 2038 bool channel_type_valid, unsigned int wait, 2039 const u8 *buf, size_t len, bool no_cck, 2040 bool dont_wait_for_ack, u64 *cookie) 2041{ 2042 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2043 struct ieee80211_local *local = sdata->local; 2044 struct sk_buff *skb; 2045 struct sta_info *sta; 2046 struct ieee80211_work *wk; 2047 const struct ieee80211_mgmt *mgmt = (void *)buf; 2048 u32 flags; 2049 bool is_offchan = false; 2050 2051 if (dont_wait_for_ack) 2052 flags = IEEE80211_TX_CTL_NO_ACK; 2053 else 2054 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 2055 IEEE80211_TX_CTL_REQ_TX_STATUS; 2056 2057 /* Check that we are on the requested channel for transmission */ 2058 if (chan != local->tmp_channel && 2059 chan != local->oper_channel) 2060 is_offchan = true; 2061 if (channel_type_valid && 2062 (channel_type != local->tmp_channel_type && 2063 channel_type != local->_oper_channel_type)) 2064 is_offchan = true; 2065 2066 if (chan == local->hw_roc_channel) { 2067 /* TODO: check channel type? */ 2068 is_offchan = false; 2069 flags |= IEEE80211_TX_CTL_TX_OFFCHAN; 2070 } 2071 2072 if (no_cck) 2073 flags |= IEEE80211_TX_CTL_NO_CCK_RATE; 2074 2075 if (is_offchan && !offchan) 2076 return -EBUSY; 2077 2078 switch (sdata->vif.type) { 2079 case NL80211_IFTYPE_ADHOC: 2080 case NL80211_IFTYPE_AP: 2081 case NL80211_IFTYPE_AP_VLAN: 2082 case NL80211_IFTYPE_P2P_GO: 2083 case NL80211_IFTYPE_MESH_POINT: 2084 if (!ieee80211_is_action(mgmt->frame_control) || 2085 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) 2086 break; 2087 rcu_read_lock(); 2088 sta = sta_info_get(sdata, mgmt->da); 2089 rcu_read_unlock(); 2090 if (!sta) 2091 return -ENOLINK; 2092 break; 2093 case NL80211_IFTYPE_STATION: 2094 case NL80211_IFTYPE_P2P_CLIENT: 2095 break; 2096 default: 2097 return -EOPNOTSUPP; 2098 } 2099 2100 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); 2101 if (!skb) 2102 return -ENOMEM; 2103 skb_reserve(skb, local->hw.extra_tx_headroom); 2104 2105 memcpy(skb_put(skb, len), buf, len); 2106 2107 IEEE80211_SKB_CB(skb)->flags = flags; 2108 2109 if (flags & IEEE80211_TX_CTL_TX_OFFCHAN) 2110 IEEE80211_SKB_CB(skb)->hw_queue = 2111 local->hw.offchannel_tx_hw_queue; 2112 2113 skb->dev = sdata->dev; 2114 2115 *cookie = (unsigned long) skb; 2116 2117 if (is_offchan && local->ops->remain_on_channel) { 2118 unsigned int duration; 2119 int ret; 2120 2121 mutex_lock(&local->mtx); 2122 /* 2123 * If the duration is zero, then the driver 2124 * wouldn't actually do anything. Set it to 2125 * 100 for now. 2126 * 2127 * TODO: cancel the off-channel operation 2128 * when we get the SKB's TX status and 2129 * the wait time was zero before. 2130 */ 2131 duration = 100; 2132 if (wait) 2133 duration = wait; 2134 ret = ieee80211_remain_on_channel_hw(local, dev, chan, 2135 channel_type, 2136 duration, cookie); 2137 if (ret) { 2138 kfree_skb(skb); 2139 mutex_unlock(&local->mtx); 2140 return ret; 2141 } 2142 2143 local->hw_roc_for_tx = true; 2144 local->hw_roc_duration = wait; 2145 2146 /* 2147 * queue up frame for transmission after 2148 * ieee80211_ready_on_channel call 2149 */ 2150 2151 /* modify cookie to prevent API mismatches */ 2152 *cookie ^= 2; 2153 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; 2154 IEEE80211_SKB_CB(skb)->hw_queue = 2155 local->hw.offchannel_tx_hw_queue; 2156 local->hw_roc_skb = skb; 2157 local->hw_roc_skb_for_status = skb; 2158 mutex_unlock(&local->mtx); 2159 2160 return 0; 2161 } 2162 2163 /* 2164 * Can transmit right away if the channel was the 2165 * right one and there's no wait involved... If a 2166 * wait is involved, we might otherwise not be on 2167 * the right channel for long enough! 2168 */ 2169 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) { 2170 ieee80211_tx_skb(sdata, skb); 2171 return 0; 2172 } 2173 2174 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL); 2175 if (!wk) { 2176 kfree_skb(skb); 2177 return -ENOMEM; 2178 } 2179 2180 wk->type = IEEE80211_WORK_OFFCHANNEL_TX; 2181 wk->chan = chan; 2182 wk->chan_type = channel_type; 2183 wk->sdata = sdata; 2184 wk->done = ieee80211_offchan_tx_done; 2185 wk->offchan_tx.frame = skb; 2186 wk->offchan_tx.wait = wait; 2187 wk->data_len = len; 2188 memcpy(wk->data, buf, len); 2189 2190 ieee80211_add_work(wk); 2191 return 0; 2192} 2193 2194static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2195 struct net_device *dev, 2196 u64 cookie) 2197{ 2198 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2199 struct ieee80211_local *local = sdata->local; 2200 struct ieee80211_work *wk; 2201 int ret = -ENOENT; 2202 2203 mutex_lock(&local->mtx); 2204 2205 if (local->ops->cancel_remain_on_channel) { 2206 cookie ^= 2; 2207 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); 2208 2209 if (ret == 0) { 2210 kfree_skb(local->hw_roc_skb); 2211 local->hw_roc_skb = NULL; 2212 local->hw_roc_skb_for_status = NULL; 2213 } 2214 2215 mutex_unlock(&local->mtx); 2216 2217 return ret; 2218 } 2219 2220 list_for_each_entry(wk, &local->work_list, list) { 2221 if (wk->sdata != sdata) 2222 continue; 2223 2224 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) 2225 continue; 2226 2227 if (cookie != (unsigned long) wk->offchan_tx.frame) 2228 continue; 2229 2230 wk->timeout = jiffies; 2231 2232 ieee80211_queue_work(&local->hw, &local->work_work); 2233 ret = 0; 2234 break; 2235 } 2236 mutex_unlock(&local->mtx); 2237 2238 return ret; 2239} 2240 2241static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 2242 struct net_device *dev, 2243 u16 frame_type, bool reg) 2244{ 2245 struct ieee80211_local *local = wiphy_priv(wiphy); 2246 2247 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ)) 2248 return; 2249 2250 if (reg) 2251 local->probe_req_reg++; 2252 else 2253 local->probe_req_reg--; 2254 2255 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 2256} 2257 2258static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 2259{ 2260 struct ieee80211_local *local = wiphy_priv(wiphy); 2261 2262 if (local->started) 2263 return -EOPNOTSUPP; 2264 2265 return drv_set_antenna(local, tx_ant, rx_ant); 2266} 2267 2268static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 2269{ 2270 struct ieee80211_local *local = wiphy_priv(wiphy); 2271 2272 return drv_get_antenna(local, tx_ant, rx_ant); 2273} 2274 2275static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) 2276{ 2277 struct ieee80211_local *local = wiphy_priv(wiphy); 2278 2279 return drv_set_ringparam(local, tx, rx); 2280} 2281 2282static void ieee80211_get_ringparam(struct wiphy *wiphy, 2283 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) 2284{ 2285 struct ieee80211_local *local = wiphy_priv(wiphy); 2286 2287 drv_get_ringparam(local, tx, tx_max, rx, rx_max); 2288} 2289 2290static int ieee80211_set_rekey_data(struct wiphy *wiphy, 2291 struct net_device *dev, 2292 struct cfg80211_gtk_rekey_data *data) 2293{ 2294 struct ieee80211_local *local = wiphy_priv(wiphy); 2295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2296 2297 if (!local->ops->set_rekey_data) 2298 return -EOPNOTSUPP; 2299 2300 drv_set_rekey_data(local, sdata, data); 2301 2302 return 0; 2303} 2304 2305static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) 2306{ 2307 u8 *pos = (void *)skb_put(skb, 7); 2308 2309 *pos++ = WLAN_EID_EXT_CAPABILITY; 2310 *pos++ = 5; /* len */ 2311 *pos++ = 0x0; 2312 *pos++ = 0x0; 2313 *pos++ = 0x0; 2314 *pos++ = 0x0; 2315 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; 2316} 2317 2318static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) 2319{ 2320 struct ieee80211_local *local = sdata->local; 2321 u16 capab; 2322 2323 capab = 0; 2324 if (local->oper_channel->band != IEEE80211_BAND_2GHZ) 2325 return capab; 2326 2327 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) 2328 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 2329 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) 2330 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; 2331 2332 return capab; 2333} 2334 2335static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, 2336 u8 *peer, u8 *bssid) 2337{ 2338 struct ieee80211_tdls_lnkie *lnkid; 2339 2340 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); 2341 2342 lnkid->ie_type = WLAN_EID_LINK_ID; 2343 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; 2344 2345 memcpy(lnkid->bssid, bssid, ETH_ALEN); 2346 memcpy(lnkid->init_sta, src_addr, ETH_ALEN); 2347 memcpy(lnkid->resp_sta, peer, ETH_ALEN); 2348} 2349 2350static int 2351ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, 2352 u8 *peer, u8 action_code, u8 dialog_token, 2353 u16 status_code, struct sk_buff *skb) 2354{ 2355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2356 struct ieee80211_tdls_data *tf; 2357 2358 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); 2359 2360 memcpy(tf->da, peer, ETH_ALEN); 2361 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); 2362 tf->ether_type = cpu_to_be16(ETH_P_TDLS); 2363 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; 2364 2365 switch (action_code) { 2366 case WLAN_TDLS_SETUP_REQUEST: 2367 tf->category = WLAN_CATEGORY_TDLS; 2368 tf->action_code = WLAN_TDLS_SETUP_REQUEST; 2369 2370 skb_put(skb, sizeof(tf->u.setup_req)); 2371 tf->u.setup_req.dialog_token = dialog_token; 2372 tf->u.setup_req.capability = 2373 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 2374 2375 ieee80211_add_srates_ie(&sdata->vif, skb, false); 2376 ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); 2377 ieee80211_tdls_add_ext_capab(skb); 2378 break; 2379 case WLAN_TDLS_SETUP_RESPONSE: 2380 tf->category = WLAN_CATEGORY_TDLS; 2381 tf->action_code = WLAN_TDLS_SETUP_RESPONSE; 2382 2383 skb_put(skb, sizeof(tf->u.setup_resp)); 2384 tf->u.setup_resp.status_code = cpu_to_le16(status_code); 2385 tf->u.setup_resp.dialog_token = dialog_token; 2386 tf->u.setup_resp.capability = 2387 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 2388 2389 ieee80211_add_srates_ie(&sdata->vif, skb, false); 2390 ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); 2391 ieee80211_tdls_add_ext_capab(skb); 2392 break; 2393 case WLAN_TDLS_SETUP_CONFIRM: 2394 tf->category = WLAN_CATEGORY_TDLS; 2395 tf->action_code = WLAN_TDLS_SETUP_CONFIRM; 2396 2397 skb_put(skb, sizeof(tf->u.setup_cfm)); 2398 tf->u.setup_cfm.status_code = cpu_to_le16(status_code); 2399 tf->u.setup_cfm.dialog_token = dialog_token; 2400 break; 2401 case WLAN_TDLS_TEARDOWN: 2402 tf->category = WLAN_CATEGORY_TDLS; 2403 tf->action_code = WLAN_TDLS_TEARDOWN; 2404 2405 skb_put(skb, sizeof(tf->u.teardown)); 2406 tf->u.teardown.reason_code = cpu_to_le16(status_code); 2407 break; 2408 case WLAN_TDLS_DISCOVERY_REQUEST: 2409 tf->category = WLAN_CATEGORY_TDLS; 2410 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; 2411 2412 skb_put(skb, sizeof(tf->u.discover_req)); 2413 tf->u.discover_req.dialog_token = dialog_token; 2414 break; 2415 default: 2416 return -EINVAL; 2417 } 2418 2419 return 0; 2420} 2421 2422static int 2423ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, 2424 u8 *peer, u8 action_code, u8 dialog_token, 2425 u16 status_code, struct sk_buff *skb) 2426{ 2427 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2428 struct ieee80211_mgmt *mgmt; 2429 2430 mgmt = (void *)skb_put(skb, 24); 2431 memset(mgmt, 0, 24); 2432 memcpy(mgmt->da, peer, ETH_ALEN); 2433 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 2434 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); 2435 2436 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2437 IEEE80211_STYPE_ACTION); 2438 2439 switch (action_code) { 2440 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 2441 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); 2442 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; 2443 mgmt->u.action.u.tdls_discover_resp.action_code = 2444 WLAN_PUB_ACTION_TDLS_DISCOVER_RES; 2445 mgmt->u.action.u.tdls_discover_resp.dialog_token = 2446 dialog_token; 2447 mgmt->u.action.u.tdls_discover_resp.capability = 2448 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 2449 2450 ieee80211_add_srates_ie(&sdata->vif, skb, false); 2451 ieee80211_add_ext_srates_ie(&sdata->vif, skb, false); 2452 ieee80211_tdls_add_ext_capab(skb); 2453 break; 2454 default: 2455 return -EINVAL; 2456 } 2457 2458 return 0; 2459} 2460 2461static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2462 u8 *peer, u8 action_code, u8 dialog_token, 2463 u16 status_code, const u8 *extra_ies, 2464 size_t extra_ies_len) 2465{ 2466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2467 struct ieee80211_local *local = sdata->local; 2468 struct ieee80211_tx_info *info; 2469 struct sk_buff *skb = NULL; 2470 bool send_direct; 2471 int ret; 2472 2473 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 2474 return -ENOTSUPP; 2475 2476 /* make sure we are in managed mode, and associated */ 2477 if (sdata->vif.type != NL80211_IFTYPE_STATION || 2478 !sdata->u.mgd.associated) 2479 return -EINVAL; 2480 2481#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG 2482 printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer); 2483#endif 2484 2485 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 2486 max(sizeof(struct ieee80211_mgmt), 2487 sizeof(struct ieee80211_tdls_data)) + 2488 50 + /* supported rates */ 2489 7 + /* ext capab */ 2490 extra_ies_len + 2491 sizeof(struct ieee80211_tdls_lnkie)); 2492 if (!skb) 2493 return -ENOMEM; 2494 2495 info = IEEE80211_SKB_CB(skb); 2496 skb_reserve(skb, local->hw.extra_tx_headroom); 2497 2498 switch (action_code) { 2499 case WLAN_TDLS_SETUP_REQUEST: 2500 case WLAN_TDLS_SETUP_RESPONSE: 2501 case WLAN_TDLS_SETUP_CONFIRM: 2502 case WLAN_TDLS_TEARDOWN: 2503 case WLAN_TDLS_DISCOVERY_REQUEST: 2504 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, 2505 action_code, dialog_token, 2506 status_code, skb); 2507 send_direct = false; 2508 break; 2509 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 2510 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, 2511 dialog_token, status_code, 2512 skb); 2513 send_direct = true; 2514 break; 2515 default: 2516 ret = -ENOTSUPP; 2517 break; 2518 } 2519 2520 if (ret < 0) 2521 goto fail; 2522 2523 if (extra_ies_len) 2524 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); 2525 2526 /* the TDLS link IE is always added last */ 2527 switch (action_code) { 2528 case WLAN_TDLS_SETUP_REQUEST: 2529 case WLAN_TDLS_SETUP_CONFIRM: 2530 case WLAN_TDLS_TEARDOWN: 2531 case WLAN_TDLS_DISCOVERY_REQUEST: 2532 /* we are the initiator */ 2533 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, 2534 sdata->u.mgd.bssid); 2535 break; 2536 case WLAN_TDLS_SETUP_RESPONSE: 2537 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 2538 /* we are the responder */ 2539 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, 2540 sdata->u.mgd.bssid); 2541 break; 2542 default: 2543 ret = -ENOTSUPP; 2544 goto fail; 2545 } 2546 2547 if (send_direct) { 2548 ieee80211_tx_skb(sdata, skb); 2549 return 0; 2550 } 2551 2552 /* 2553 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise 2554 * we should default to AC_VI. 2555 */ 2556 switch (action_code) { 2557 case WLAN_TDLS_SETUP_REQUEST: 2558 case WLAN_TDLS_SETUP_RESPONSE: 2559 skb_set_queue_mapping(skb, IEEE80211_AC_BK); 2560 skb->priority = 2; 2561 break; 2562 default: 2563 skb_set_queue_mapping(skb, IEEE80211_AC_VI); 2564 skb->priority = 5; 2565 break; 2566 } 2567 2568 /* disable bottom halves when entering the Tx path */ 2569 local_bh_disable(); 2570 ret = ieee80211_subif_start_xmit(skb, dev); 2571 local_bh_enable(); 2572 2573 return ret; 2574 2575fail: 2576 dev_kfree_skb(skb); 2577 return ret; 2578} 2579 2580static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2581 u8 *peer, enum nl80211_tdls_operation oper) 2582{ 2583 struct sta_info *sta; 2584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2585 2586 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 2587 return -ENOTSUPP; 2588 2589 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2590 return -EINVAL; 2591 2592#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG 2593 printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer); 2594#endif 2595 2596 switch (oper) { 2597 case NL80211_TDLS_ENABLE_LINK: 2598 rcu_read_lock(); 2599 sta = sta_info_get(sdata, peer); 2600 if (!sta) { 2601 rcu_read_unlock(); 2602 return -ENOLINK; 2603 } 2604 2605 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); 2606 rcu_read_unlock(); 2607 break; 2608 case NL80211_TDLS_DISABLE_LINK: 2609 return sta_info_destroy_addr(sdata, peer); 2610 case NL80211_TDLS_TEARDOWN: 2611 case NL80211_TDLS_SETUP: 2612 case NL80211_TDLS_DISCOVERY_REQ: 2613 /* We don't support in-driver setup/teardown/discovery */ 2614 return -ENOTSUPP; 2615 default: 2616 return -ENOTSUPP; 2617 } 2618 2619 return 0; 2620} 2621 2622static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 2623 const u8 *peer, u64 *cookie) 2624{ 2625 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2626 struct ieee80211_local *local = sdata->local; 2627 struct ieee80211_qos_hdr *nullfunc; 2628 struct sk_buff *skb; 2629 int size = sizeof(*nullfunc); 2630 __le16 fc; 2631 bool qos; 2632 struct ieee80211_tx_info *info; 2633 struct sta_info *sta; 2634 2635 rcu_read_lock(); 2636 sta = sta_info_get(sdata, peer); 2637 if (sta) { 2638 qos = test_sta_flag(sta, WLAN_STA_WME); 2639 rcu_read_unlock(); 2640 } else { 2641 rcu_read_unlock(); 2642 return -ENOLINK; 2643 } 2644 2645 if (qos) { 2646 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 2647 IEEE80211_STYPE_QOS_NULLFUNC | 2648 IEEE80211_FCTL_FROMDS); 2649 } else { 2650 size -= 2; 2651 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 2652 IEEE80211_STYPE_NULLFUNC | 2653 IEEE80211_FCTL_FROMDS); 2654 } 2655 2656 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 2657 if (!skb) 2658 return -ENOMEM; 2659 2660 skb->dev = dev; 2661 2662 skb_reserve(skb, local->hw.extra_tx_headroom); 2663 2664 nullfunc = (void *) skb_put(skb, size); 2665 nullfunc->frame_control = fc; 2666 nullfunc->duration_id = 0; 2667 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 2668 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 2669 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 2670 nullfunc->seq_ctrl = 0; 2671 2672 info = IEEE80211_SKB_CB(skb); 2673 2674 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 2675 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 2676 2677 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 2678 skb->priority = 7; 2679 if (qos) 2680 nullfunc->qos_ctrl = cpu_to_le16(7); 2681 2682 local_bh_disable(); 2683 ieee80211_xmit(sdata, skb); 2684 local_bh_enable(); 2685 2686 *cookie = (unsigned long) skb; 2687 return 0; 2688} 2689 2690static struct ieee80211_channel * 2691ieee80211_wiphy_get_channel(struct wiphy *wiphy, 2692 enum nl80211_channel_type *type) 2693{ 2694 struct ieee80211_local *local = wiphy_priv(wiphy); 2695 2696 *type = local->_oper_channel_type; 2697 return local->oper_channel; 2698} 2699 2700#ifdef CONFIG_PM 2701static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 2702{ 2703 drv_set_wakeup(wiphy_priv(wiphy), enabled); 2704} 2705#endif 2706 2707struct cfg80211_ops mac80211_config_ops = { 2708 .add_virtual_intf = ieee80211_add_iface, 2709 .del_virtual_intf = ieee80211_del_iface, 2710 .change_virtual_intf = ieee80211_change_iface, 2711 .add_key = ieee80211_add_key, 2712 .del_key = ieee80211_del_key, 2713 .get_key = ieee80211_get_key, 2714 .set_default_key = ieee80211_config_default_key, 2715 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 2716 .start_ap = ieee80211_start_ap, 2717 .change_beacon = ieee80211_change_beacon, 2718 .stop_ap = ieee80211_stop_ap, 2719 .add_station = ieee80211_add_station, 2720 .del_station = ieee80211_del_station, 2721 .change_station = ieee80211_change_station, 2722 .get_station = ieee80211_get_station, 2723 .dump_station = ieee80211_dump_station, 2724 .dump_survey = ieee80211_dump_survey, 2725#ifdef CONFIG_MAC80211_MESH 2726 .add_mpath = ieee80211_add_mpath, 2727 .del_mpath = ieee80211_del_mpath, 2728 .change_mpath = ieee80211_change_mpath, 2729 .get_mpath = ieee80211_get_mpath, 2730 .dump_mpath = ieee80211_dump_mpath, 2731 .update_mesh_config = ieee80211_update_mesh_config, 2732 .get_mesh_config = ieee80211_get_mesh_config, 2733 .join_mesh = ieee80211_join_mesh, 2734 .leave_mesh = ieee80211_leave_mesh, 2735#endif 2736 .change_bss = ieee80211_change_bss, 2737 .set_txq_params = ieee80211_set_txq_params, 2738 .set_channel = ieee80211_set_channel, 2739 .suspend = ieee80211_suspend, 2740 .resume = ieee80211_resume, 2741 .scan = ieee80211_scan, 2742 .sched_scan_start = ieee80211_sched_scan_start, 2743 .sched_scan_stop = ieee80211_sched_scan_stop, 2744 .auth = ieee80211_auth, 2745 .assoc = ieee80211_assoc, 2746 .deauth = ieee80211_deauth, 2747 .disassoc = ieee80211_disassoc, 2748 .join_ibss = ieee80211_join_ibss, 2749 .leave_ibss = ieee80211_leave_ibss, 2750 .set_wiphy_params = ieee80211_set_wiphy_params, 2751 .set_tx_power = ieee80211_set_tx_power, 2752 .get_tx_power = ieee80211_get_tx_power, 2753 .set_wds_peer = ieee80211_set_wds_peer, 2754 .rfkill_poll = ieee80211_rfkill_poll, 2755 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 2756 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 2757 .set_power_mgmt = ieee80211_set_power_mgmt, 2758 .set_bitrate_mask = ieee80211_set_bitrate_mask, 2759 .remain_on_channel = ieee80211_remain_on_channel, 2760 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 2761 .mgmt_tx = ieee80211_mgmt_tx, 2762 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 2763 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 2764 .mgmt_frame_register = ieee80211_mgmt_frame_register, 2765 .set_antenna = ieee80211_set_antenna, 2766 .get_antenna = ieee80211_get_antenna, 2767 .set_ringparam = ieee80211_set_ringparam, 2768 .get_ringparam = ieee80211_get_ringparam, 2769 .set_rekey_data = ieee80211_set_rekey_data, 2770 .tdls_oper = ieee80211_tdls_oper, 2771 .tdls_mgmt = ieee80211_tdls_mgmt, 2772 .probe_client = ieee80211_probe_client, 2773 .get_channel = ieee80211_wiphy_get_channel, 2774 .set_noack_map = ieee80211_set_noack_map, 2775#ifdef CONFIG_PM 2776 .set_wakeup = ieee80211_set_wakeup, 2777#endif 2778}; 2779