src/ap/sta_info.c

   1 /*
   2  * hostapd / Station table
   3  * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "utils/eloop.h"
  13 #include "common/ieee802_11_defs.h"
  14 #include "common/wpa_ctrl.h"
  15 #include "common/sae.h"
  16 #include "radius/radius.h"
  17 #include "radius/radius_client.h"
  18 #include "p2p/p2p.h"
  19 #include "fst/fst.h"
  20 #include "hostapd.h"
  21 #include "accounting.h"
  22 #include "ieee802_1x.h"
  23 #include "ieee802_11.h"
  24 #include "ieee802_11_auth.h"
  25 #include "wpa_auth.h"
  26 #include "preauth_auth.h"
  27 #include "ap_config.h"
  28 #include "beacon.h"
  29 #include "ap_mlme.h"
  30 #include "vlan_init.h"
  31 #include "p2p_hostapd.h"
  32 #include "ap_drv_ops.h"
  33 #include "gas_serv.h"
  34 #include "wnm_ap.h"
  35 #include "ndisc_snoop.h"
  36 #include "sta_info.h"
  37
  38 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
  39                                        struct sta_info *sta);
  40 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
  41 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
  42 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  43 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  44 #ifdef CONFIG_IEEE80211W
  45 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
  46 #endif /* CONFIG_IEEE80211W */
  47 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
  48
  49 int ap_for_each_sta(struct hostapd_data *hapd,
  50                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
  51                               void *ctx),
  52                     void *ctx)
  53 {
  54         struct sta_info *sta;
  55
  56         for (sta = hapd->sta_list; sta; sta = sta->next) {
  57                 if (cb(hapd, sta, ctx))
  58                         return 1;
  59         }
  60
  61         return 0;
  62 }
  63
  64
  65 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
  66 {
  67         struct sta_info *s;
  68
  69         s = hapd->sta_hash[STA_HASH(sta)];
  70         while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
  71                 s = s->hnext;
  72         return s;
  73 }
  74
  75
  76 #ifdef CONFIG_P2P
  77 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
  78 {
  79         struct sta_info *sta;
  80
  81         for (sta = hapd->sta_list; sta; sta = sta->next) {
  82                 const u8 *p2p_dev_addr;
  83
  84                 if (sta->p2p_ie == NULL)
  85                         continue;
  86
  87                 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
  88                 if (p2p_dev_addr == NULL)
  89                         continue;
  90
  91                 if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
  92                         return sta;
  93         }
  94
  95         return NULL;
  96 }
  97 #endif /* CONFIG_P2P */
  98
  99
 100 static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
 101 {
 102         struct sta_info *tmp;
 103
 104         if (hapd->sta_list == sta) {
 105                 hapd->sta_list = sta->next;
 106                 return;
 107         }
 108
 109         tmp = hapd->sta_list;
 110         while (tmp != NULL && tmp->next != sta)
 111                 tmp = tmp->next;
 112         if (tmp == NULL) {
 113                 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
 114                            "list.", MAC2STR(sta->addr));
 115         } else
 116                 tmp->next = sta->next;
 117 }
 118
 119
 120 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
 121 {
 122         sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
 123         hapd->sta_hash[STA_HASH(sta->addr)] = sta;
 124 }
 125
 126
 127 static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
 128 {
 129         struct sta_info *s;
 130
 131         s = hapd->sta_hash[STA_HASH(sta->addr)];
 132         if (s == NULL) return;
 133         if (os_memcmp(s->addr, sta->addr, 6) == 0) {
 134                 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
 135                 return;
 136         }
 137
 138         while (s->hnext != NULL &&
 139                os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
 140                 s = s->hnext;
 141         if (s->hnext != NULL)
 142                 s->hnext = s->hnext->hnext;
 143         else
 144                 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
 145                            " from hash table", MAC2STR(sta->addr));
 146 }
 147
 148
 149 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta)
 150 {
 151         sta_ip6addr_del(hapd, sta);
 152 }
 153
 154
 155 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 156 {
 157         int set_beacon = 0;
 158
 159         accounting_sta_stop(hapd, sta);
 160
 161         /* just in case */
 162         ap_sta_set_authorized(hapd, sta, 0);
 163
 164         if (sta->flags & WLAN_STA_WDS)
 165                 hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
 166
 167         if (sta->ipaddr)
 168                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 169         ap_sta_ip6addr_del(hapd, sta);
 170
 171         if (!hapd->iface->driver_ap_teardown &&
 172             !(sta->flags & WLAN_STA_PREAUTH))
 173                 hostapd_drv_sta_remove(hapd, sta->addr);
 174
 175         ap_sta_hash_del(hapd, sta);
 176         ap_sta_list_del(hapd, sta);
 177
 178         if (sta->aid > 0)
 179                 hapd->sta_aid[(sta->aid - 1) / 32] &=
 180                         ~BIT((sta->aid - 1) % 32);
 181
 182         hapd->num_sta--;
 183         if (sta->nonerp_set) {
 184                 sta->nonerp_set = 0;
 185                 hapd->iface->num_sta_non_erp--;
 186                 if (hapd->iface->num_sta_non_erp == 0)
 187                         set_beacon++;
 188         }
 189
 190         if (sta->no_short_slot_time_set) {
 191                 sta->no_short_slot_time_set = 0;
 192                 hapd->iface->num_sta_no_short_slot_time--;
 193                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 194                     && hapd->iface->num_sta_no_short_slot_time == 0)
 195                         set_beacon++;
 196         }
 197
 198         if (sta->no_short_preamble_set) {
 199                 sta->no_short_preamble_set = 0;
 200                 hapd->iface->num_sta_no_short_preamble--;
 201                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 202                     && hapd->iface->num_sta_no_short_preamble == 0)
 203                         set_beacon++;
 204         }
 205
 206         if (sta->no_ht_gf_set) {
 207                 sta->no_ht_gf_set = 0;
 208                 hapd->iface->num_sta_ht_no_gf--;
 209         }
 210
 211         if (sta->no_ht_set) {
 212                 sta->no_ht_set = 0;
 213                 hapd->iface->num_sta_no_ht--;
 214         }
 215
 216         if (sta->ht_20mhz_set) {
 217                 sta->ht_20mhz_set = 0;
 218                 hapd->iface->num_sta_ht_20mhz--;
 219         }
 220
 221 #ifdef CONFIG_IEEE80211N
 222         ht40_intolerant_remove(hapd->iface, sta);
 223 #endif /* CONFIG_IEEE80211N */
 224
 225 #ifdef CONFIG_P2P
 226         if (sta->no_p2p_set) {
 227                 sta->no_p2p_set = 0;
 228                 hapd->num_sta_no_p2p--;
 229                 if (hapd->num_sta_no_p2p == 0)
 230                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 231         }
 232 #endif /* CONFIG_P2P */
 233
 234 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 235         if (hostapd_ht_operation_update(hapd->iface) > 0)
 236                 set_beacon++;
 237 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 238
 239 #ifdef CONFIG_MESH
 240         if (hapd->mesh_sta_free_cb)
 241                 hapd->mesh_sta_free_cb(sta);
 242 #endif /* CONFIG_MESH */
 243
 244         if (set_beacon)
 245                 ieee802_11_set_beacons(hapd->iface);
 246
 247         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 248                    __func__, MAC2STR(sta->addr));
 249         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 250         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 251         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 252         ap_sta_clear_disconnect_timeouts(hapd, sta);
 253         sae_clear_retransmit_timer(hapd, sta);
 254
 255         ieee802_1x_free_station(hapd, sta);
 256         wpa_auth_sta_deinit(sta->wpa_sm);
 257         rsn_preauth_free_station(hapd, sta);
 258 #ifndef CONFIG_NO_RADIUS
 259         if (hapd->radius)
 260                 radius_client_flush_auth(hapd->radius, sta->addr);
 261 #endif /* CONFIG_NO_RADIUS */
 262
 263 #ifndef CONFIG_NO_VLAN
 264         /*
 265          * sta->wpa_sm->group needs to be released before so that
 266          * vlan_remove_dynamic() can check that no stations are left on the
 267          * AP_VLAN netdev.
 268          */
 269         if (sta->vlan_id_bound) {
 270                 /*
 271                  * Need to remove the STA entry before potentially removing the
 272                  * VLAN.
 273                  */
 274                 if (hapd->iface->driver_ap_teardown &&
 275                     !(sta->flags & WLAN_STA_PREAUTH))
 276                         hostapd_drv_sta_remove(hapd, sta->addr);
 277                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 278         }
 279 #endif /* CONFIG_NO_VLAN */
 280
 281         os_free(sta->challenge);
 282
 283 #ifdef CONFIG_IEEE80211W
 284         os_free(sta->sa_query_trans_id);
 285         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 286 #endif /* CONFIG_IEEE80211W */
 287
 288 #ifdef CONFIG_P2P
 289         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 290 #endif /* CONFIG_P2P */
 291
 292 #ifdef CONFIG_INTERWORKING
 293         if (sta->gas_dialog) {
 294                 int i;
 295                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 296                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 297                 os_free(sta->gas_dialog);
 298         }
 299 #endif /* CONFIG_INTERWORKING */
 300
 301         wpabuf_free(sta->wps_ie);
 302         wpabuf_free(sta->p2p_ie);
 303         wpabuf_free(sta->hs20_ie);
 304 #ifdef CONFIG_FST
 305         wpabuf_free(sta->mb_ies);
 306 #endif /* CONFIG_FST */
 307
 308         os_free(sta->ht_capabilities);
 309         os_free(sta->vht_capabilities);
 310         hostapd_free_psk_list(sta->psk);
 311         os_free(sta->identity);
 312         os_free(sta->radius_cui);
 313         os_free(sta->remediation_url);
 314         wpabuf_free(sta->hs20_deauth_req);
 315         os_free(sta->hs20_session_info_url);
 316
 317 #ifdef CONFIG_SAE
 318         sae_clear_data(sta->sae);
 319         os_free(sta->sae);
 320 #endif /* CONFIG_SAE */
 321
 322         os_free(sta);
 323 }
 324
 325
 326 void hostapd_free_stas(struct hostapd_data *hapd)
 327 {
 328         struct sta_info *sta, *prev;
 329
 330         sta = hapd->sta_list;
 331
 332         while (sta) {
 333                 prev = sta;
 334                 if (sta->flags & WLAN_STA_AUTH) {
 335                         mlme_deauthenticate_indication(
 336                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 337                 }
 338                 sta = sta->next;
 339                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 340                            MAC2STR(prev->addr));
 341                 ap_free_sta(hapd, prev);
 342         }
 343 }
 344
 345
 346 /**
 347  * ap_handle_timer - Per STA timer handler
 348  * @eloop_ctx: struct hostapd_data *
 349  * @timeout_ctx: struct sta_info *
 350  *
 351  * This function is called to check station activity and to remove inactive
 352  * stations.
 353  */
 354 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 355 {
 356         struct hostapd_data *hapd = eloop_ctx;
 357         struct sta_info *sta = timeout_ctx;
 358         unsigned long next_time = 0;
 359         int reason;
 360
 361         wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
 362                    __func__, MAC2STR(sta->addr), sta->flags,
 363                    sta->timeout_next);
 364         if (sta->timeout_next == STA_REMOVE) {
 365                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 366                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 367                                "local deauth request");
 368                 ap_free_sta(hapd, sta);
 369                 return;
 370         }
 371
 372         if ((sta->flags & WLAN_STA_ASSOC) &&
 373             (sta->timeout_next == STA_NULLFUNC ||
 374              sta->timeout_next == STA_DISASSOC)) {
 375                 int inactive_sec;
 376                 /*
 377                  * Add random value to timeout so that we don't end up bouncing
 378                  * all stations at the same time if we have lots of associated
 379                  * stations that are idle (but keep re-associating).
 380                  */
 381                 int fuzz = os_random() % 20;
 382                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 383                 if (inactive_sec == -1) {
 384                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 385                                 "Check inactivity: Could not "
 386                                 "get station info from kernel driver for "
 387                                 MACSTR, MAC2STR(sta->addr));
 388                         /*
 389                          * The driver may not support this functionality.
 390                          * Anyway, try again after the next inactivity timeout,
 391                          * but do not disconnect the station now.
 392                          */
 393                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 394                 } else if (inactive_sec == -ENOENT) {
 395                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 396                                 "Station " MACSTR " has lost its driver entry",
 397                                 MAC2STR(sta->addr));
 398
 399                         /* Avoid sending client probe on removed client */
 400                         sta->timeout_next = STA_DISASSOC;
 401                         goto skip_poll;
 402                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 403                         /* station activity detected; reset timeout state */
 404                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 405                                 "Station " MACSTR " has been active %is ago",
 406                                 MAC2STR(sta->addr), inactive_sec);
 407                         sta->timeout_next = STA_NULLFUNC;
 408                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 409                                 inactive_sec;
 410                 } else {
 411                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 412                                 "Station " MACSTR " has been "
 413                                 "inactive too long: %d sec, max allowed: %d",
 414                                 MAC2STR(sta->addr), inactive_sec,
 415                                 hapd->conf->ap_max_inactivity);
 416
 417                         if (hapd->conf->skip_inactivity_poll)
 418                                 sta->timeout_next = STA_DISASSOC;
 419                 }
 420         }
 421
 422         if ((sta->flags & WLAN_STA_ASSOC) &&
 423             sta->timeout_next == STA_DISASSOC &&
 424             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 425             !hapd->conf->skip_inactivity_poll) {
 426                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 427                         " has ACKed data poll", MAC2STR(sta->addr));
 428                 /* data nullfunc frame poll did not produce TX errors; assume
 429                  * station ACKed it */
 430                 sta->timeout_next = STA_NULLFUNC;
 431                 next_time = hapd->conf->ap_max_inactivity;
 432         }
 433
 434 skip_poll:
 435         if (next_time) {
 436                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 437                            "for " MACSTR " (%lu seconds)",
 438                            __func__, MAC2STR(sta->addr), next_time);
 439                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 440                                        sta);
 441                 return;
 442         }
 443
 444         if (sta->timeout_next == STA_NULLFUNC &&
 445             (sta->flags & WLAN_STA_ASSOC)) {
 446                 wpa_printf(MSG_DEBUG, "  Polling STA");
 447                 sta->flags |= WLAN_STA_PENDING_POLL;
 448                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 449                                         sta->flags & WLAN_STA_WMM);
 450         } else if (sta->timeout_next != STA_REMOVE) {
 451                 int deauth = sta->timeout_next == STA_DEAUTH;
 452
 453                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 454                         "Timeout, sending %s info to STA " MACSTR,
 455                         deauth ? "deauthentication" : "disassociation",
 456                         MAC2STR(sta->addr));
 457
 458                 if (deauth) {
 459                         hostapd_drv_sta_deauth(
 460                                 hapd, sta->addr,
 461                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 462                 } else {
 463                         reason = (sta->timeout_next == STA_DISASSOC) ?
 464                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 465                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 466
 467                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 468                 }
 469         }
 470
 471         switch (sta->timeout_next) {
 472         case STA_NULLFUNC:
 473                 sta->timeout_next = STA_DISASSOC;
 474                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 475                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 476                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 477                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 478                                        hapd, sta);
 479                 break;
 480         case STA_DISASSOC:
 481         case STA_DISASSOC_FROM_CLI:
 482                 ap_sta_set_authorized(hapd, sta, 0);
 483                 sta->flags &= ~WLAN_STA_ASSOC;
 484                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 485                 if (!sta->acct_terminate_cause)
 486                         sta->acct_terminate_cause =
 487                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 488                 accounting_sta_stop(hapd, sta);
 489                 ieee802_1x_free_station(hapd, sta);
 490                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 491                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 492                                "inactivity");
 493                 reason = (sta->timeout_next == STA_DISASSOC) ?
 494                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 495                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 496                 sta->timeout_next = STA_DEAUTH;
 497                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 498                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 499                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 500                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 501                                        hapd, sta);
 502                 mlme_disassociate_indication(hapd, sta, reason);
 503                 break;
 504         case STA_DEAUTH:
 505         case STA_REMOVE:
 506                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 507                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 508                                "inactivity (timer DEAUTH/REMOVE)");
 509                 if (!sta->acct_terminate_cause)
 510                         sta->acct_terminate_cause =
 511                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 512                 mlme_deauthenticate_indication(
 513                         hapd, sta,
 514                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 515                 ap_free_sta(hapd, sta);
 516                 break;
 517         }
 518 }
 519
 520
 521 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 522 {
 523         struct hostapd_data *hapd = eloop_ctx;
 524         struct sta_info *sta = timeout_ctx;
 525
 526         if (!(sta->flags & WLAN_STA_AUTH)) {
 527                 if (sta->flags & WLAN_STA_GAS) {
 528                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 529                                    "entry " MACSTR, MAC2STR(sta->addr));
 530                         ap_free_sta(hapd, sta);
 531                 }
 532                 return;
 533         }
 534
 535         hostapd_drv_sta_deauth(hapd, sta->addr,
 536                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 537         mlme_deauthenticate_indication(hapd, sta,
 538                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 539         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 540                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 541                        "session timeout");
 542         sta->acct_terminate_cause =
 543                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 544         ap_free_sta(hapd, sta);
 545 }
 546
 547
 548 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 549                               u32 session_timeout)
 550 {
 551         if (eloop_replenish_timeout(session_timeout, 0,
 552                                     ap_handle_session_timer, hapd, sta) == 1) {
 553                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 554                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 555                                "to %d seconds", session_timeout);
 556         }
 557 }
 558
 559
 560 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 561                             u32 session_timeout)
 562 {
 563         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 564                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 565                        "seconds", session_timeout);
 566         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 567         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 568                                hapd, sta);
 569 }
 570
 571
 572 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 573 {
 574         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 575 }
 576
 577
 578 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 579 {
 580 #ifdef CONFIG_WNM
 581         struct hostapd_data *hapd = eloop_ctx;
 582         struct sta_info *sta = timeout_ctx;
 583
 584         wpa_printf(MSG_DEBUG, "WNM: Session warning time reached for " MACSTR,
 585                    MAC2STR(sta->addr));
 586         if (sta->hs20_session_info_url == NULL)
 587                 return;
 588
 589         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 590                                        sta->hs20_disassoc_timer);
 591 #endif /* CONFIG_WNM */
 592 }
 593
 594
 595 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 596                                     struct sta_info *sta, int warning_time)
 597 {
 598         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 599         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 600                                hapd, sta);
 601 }
 602
 603
 604 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 605 {
 606         struct sta_info *sta;
 607
 608         sta = ap_get_sta(hapd, addr);
 609         if (sta)
 610                 return sta;
 611
 612         wpa_printf(MSG_DEBUG, "  New STA");
 613         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 614                 /* FIX: might try to remove some old STAs first? */
 615                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 616                            hapd->num_sta, hapd->conf->max_num_sta);
 617                 return NULL;
 618         }
 619
 620         sta = os_zalloc(sizeof(struct sta_info));
 621         if (sta == NULL) {
 622                 wpa_printf(MSG_ERROR, "malloc failed");
 623                 return NULL;
 624         }
 625         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 626         accounting_sta_get_id(hapd, sta);
 627
 628         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 629                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 630                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 631                            __func__, MAC2STR(addr),
 632                            hapd->conf->ap_max_inactivity);
 633                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 634                                        ap_handle_timer, hapd, sta);
 635         }
 636
 637         /* initialize STA info data */
 638         os_memcpy(sta->addr, addr, ETH_ALEN);
 639         sta->next = hapd->sta_list;
 640         hapd->sta_list = sta;
 641         hapd->num_sta++;
 642         ap_sta_hash_add(hapd, sta);
 643         ap_sta_remove_in_other_bss(hapd, sta);
 644         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 645         dl_list_init(&sta->ip6addr);
 646
 647         return sta;
 648 }
 649
 650
 651 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 652 {
 653         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 654
 655         if (sta->ipaddr)
 656                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 657         ap_sta_ip6addr_del(hapd, sta);
 658
 659         wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
 660                    MAC2STR(sta->addr));
 661         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 662             sta->flags & WLAN_STA_ASSOC) {
 663                 wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
 664                            " from kernel driver.", MAC2STR(sta->addr));
 665                 return -1;
 666         }
 667         return 0;
 668 }
 669
 670
 671 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 672                                        struct sta_info *sta)
 673 {
 674         struct hostapd_iface *iface = hapd->iface;
 675         size_t i;
 676
 677         for (i = 0; i < iface->num_bss; i++) {
 678                 struct hostapd_data *bss = iface->bss[i];
 679                 struct sta_info *sta2;
 680                 /* bss should always be set during operation, but it may be
 681                  * NULL during reconfiguration. Assume the STA is not
 682                  * associated to another BSS in that case to avoid NULL pointer
 683                  * dereferences. */
 684                 if (bss == hapd || bss == NULL)
 685                         continue;
 686                 sta2 = ap_get_sta(bss, sta->addr);
 687                 if (!sta2)
 688                         continue;
 689
 690                 ap_sta_disconnect(bss, sta2, sta2->addr,
 691                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 692         }
 693 }
 694
 695
 696 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 697 {
 698         struct hostapd_data *hapd = eloop_ctx;
 699         struct sta_info *sta = timeout_ctx;
 700
 701         ap_sta_remove(hapd, sta);
 702         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 703 }
 704
 705
 706 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 707                          u16 reason)
 708 {
 709         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 710                    hapd->conf->iface, MAC2STR(sta->addr));
 711         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 712         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 713         ap_sta_set_authorized(hapd, sta, 0);
 714         sta->timeout_next = STA_DEAUTH;
 715         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 716                    "for " MACSTR " (%d seconds - "
 717                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 718                    __func__, MAC2STR(sta->addr),
 719                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 720         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 721         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 722                                ap_handle_timer, hapd, sta);
 723         accounting_sta_stop(hapd, sta);
 724         ieee802_1x_free_station(hapd, sta);
 725
 726         sta->disassoc_reason = reason;
 727         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 728         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 729         eloop_register_timeout(hapd->iface->drv_flags &
 730                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 731                                ap_sta_disassoc_cb_timeout, hapd, sta);
 732 }
 733
 734
 735 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 736 {
 737         struct hostapd_data *hapd = eloop_ctx;
 738         struct sta_info *sta = timeout_ctx;
 739
 740         ap_sta_remove(hapd, sta);
 741         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 742 }
 743
 744
 745 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 746                            u16 reason)
 747 {
 748         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 749                    hapd->conf->iface, MAC2STR(sta->addr));
 750         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 751         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 752         ap_sta_set_authorized(hapd, sta, 0);
 753         sta->timeout_next = STA_REMOVE;
 754         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 755                    "for " MACSTR " (%d seconds - "
 756                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 757                    __func__, MAC2STR(sta->addr),
 758                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 759         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 760         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 761                                ap_handle_timer, hapd, sta);
 762         accounting_sta_stop(hapd, sta);
 763         ieee802_1x_free_station(hapd, sta);
 764
 765         sta->deauth_reason = reason;
 766         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 767         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 768         eloop_register_timeout(hapd->iface->drv_flags &
 769                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 770                                ap_sta_deauth_cb_timeout, hapd, sta);
 771 }
 772
 773
 774 #ifdef CONFIG_WPS
 775 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 776                       struct sta_info *sta, void *ctx)
 777 {
 778         if (sta && (sta->flags & WLAN_STA_WPS)) {
 779                 ap_sta_deauthenticate(hapd, sta,
 780                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 781                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 782                            __func__, MAC2STR(sta->addr));
 783                 return 1;
 784         }
 785
 786         return 0;
 787 }
 788 #endif /* CONFIG_WPS */
 789
 790
 791 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 792 {
 793 #ifndef CONFIG_NO_VLAN
 794         const char *iface;
 795         struct hostapd_vlan *vlan = NULL;
 796         int ret;
 797         int old_vlanid = sta->vlan_id_bound;
 798
 799         iface = hapd->conf->iface;
 800         if (hapd->conf->ssid.vlan[0])
 801                 iface = hapd->conf->ssid.vlan;
 802
 803         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 804                 sta->vlan_id = 0;
 805         else if (sta->vlan_id > 0) {
 806                 struct hostapd_vlan *wildcard_vlan = NULL;
 807                 vlan = hapd->conf->vlan;
 808                 while (vlan) {
 809                         if (vlan->vlan_id == sta->vlan_id)
 810                                 break;
 811                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 812                                 wildcard_vlan = vlan;
 813                         vlan = vlan->next;
 814                 }
 815                 if (!vlan)
 816                         vlan = wildcard_vlan;
 817                 if (vlan)
 818                         iface = vlan->ifname;
 819         }
 820
 821         /*
 822          * Do not increment ref counters if the VLAN ID remains same, but do
 823          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 824          * have been called before.
 825          */
 826         if (sta->vlan_id == old_vlanid)
 827                 goto skip_counting;
 828
 829         if (sta->vlan_id > 0 && vlan == NULL) {
 830                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 831                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 832                                "binding station to (vlan_id=%d)",
 833                                sta->vlan_id);
 834                 ret = -1;
 835                 goto done;
 836         } else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
 837                 vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
 838                 if (vlan == NULL) {
 839                         hostapd_logger(hapd, sta->addr,
 840                                        HOSTAPD_MODULE_IEEE80211,
 841                                        HOSTAPD_LEVEL_DEBUG, "could not add "
 842                                        "dynamic VLAN interface for vlan_id=%d",
 843                                        sta->vlan_id);
 844                         ret = -1;
 845                         goto done;
 846                 }
 847
 848                 iface = vlan->ifname;
 849                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 850                                HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
 851                                "interface '%s'", iface);
 852         } else if (vlan && vlan->vlan_id == sta->vlan_id &&
 853                    vlan->dynamic_vlan > 0) {
 854                 vlan->dynamic_vlan++;
 855                 hostapd_logger(hapd, sta->addr,
 856                                HOSTAPD_MODULE_IEEE80211,
 857                                HOSTAPD_LEVEL_DEBUG,
 858                                "updated existing dynamic VLAN interface '%s'",
 859                                iface);
 860         }
 861
 862         /* ref counters have been increased, so mark the station */
 863         sta->vlan_id_bound = sta->vlan_id;
 864
 865 skip_counting:
 866         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 867                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 868                        "'%s'", iface);
 869
 870         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 871                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 872
 873         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 874         if (ret < 0) {
 875                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 876                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
 877                                "entry to vlan_id=%d", sta->vlan_id);
 878         }
 879
 880         /* During 1x reauth, if the vlan id changes, then remove the old id. */
 881         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
 882                 vlan_remove_dynamic(hapd, old_vlanid);
 883 done:
 884
 885         return ret;
 886 #else /* CONFIG_NO_VLAN */
 887         return 0;
 888 #endif /* CONFIG_NO_VLAN */
 889 }
 890
 891
 892 #ifdef CONFIG_IEEE80211W
 893
 894 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 895 {
 896         u32 tu;
 897         struct os_reltime now, passed;
 898         os_get_reltime(&now);
 899         os_reltime_sub(&now, &sta->sa_query_start, &passed);
 900         tu = (passed.sec * 1000000 + passed.usec) / 1024;
 901         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
 902                 hostapd_logger(hapd, sta->addr,
 903                                HOSTAPD_MODULE_IEEE80211,
 904                                HOSTAPD_LEVEL_DEBUG,
 905                                "association SA Query timed out");
 906                 sta->sa_query_timed_out = 1;
 907                 os_free(sta->sa_query_trans_id);
 908                 sta->sa_query_trans_id = NULL;
 909                 sta->sa_query_count = 0;
 910                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 911                 return 1;
 912         }
 913
 914         return 0;
 915 }
 916
 917
 918 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
 919 {
 920         struct hostapd_data *hapd = eloop_ctx;
 921         struct sta_info *sta = timeout_ctx;
 922         unsigned int timeout, sec, usec;
 923         u8 *trans_id, *nbuf;
 924
 925         if (sta->sa_query_count > 0 &&
 926             ap_check_sa_query_timeout(hapd, sta))
 927                 return;
 928
 929         nbuf = os_realloc_array(sta->sa_query_trans_id,
 930                                 sta->sa_query_count + 1,
 931                                 WLAN_SA_QUERY_TR_ID_LEN);
 932         if (nbuf == NULL)
 933                 return;
 934         if (sta->sa_query_count == 0) {
 935                 /* Starting a new SA Query procedure */
 936                 os_get_reltime(&sta->sa_query_start);
 937         }
 938         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
 939         sta->sa_query_trans_id = nbuf;
 940         sta->sa_query_count++;
 941
 942         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
 943                 /*
 944                  * We don't really care which ID is used here, so simply
 945                  * hardcode this if the mostly theoretical os_get_random()
 946                  * failure happens.
 947                  */
 948                 trans_id[0] = 0x12;
 949                 trans_id[1] = 0x34;
 950         }
 951
 952         timeout = hapd->conf->assoc_sa_query_retry_timeout;
 953         sec = ((timeout / 1000) * 1024) / 1000;
 954         usec = (timeout % 1000) * 1024;
 955         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
 956
 957         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 958                        HOSTAPD_LEVEL_DEBUG,
 959                        "association SA Query attempt %d", sta->sa_query_count);
 960
 961         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
 962 }
 963
 964
 965 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
 966 {
 967         ap_sa_query_timer(hapd, sta);
 968 }
 969
 970
 971 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
 972 {
 973         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 974         os_free(sta->sa_query_trans_id);
 975         sta->sa_query_trans_id = NULL;
 976         sta->sa_query_count = 0;
 977 }
 978
 979 #endif /* CONFIG_IEEE80211W */
 980
 981
 982 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
 983                            int authorized)
 984 {
 985         const u8 *dev_addr = NULL;
 986         char buf[100];
 987 #ifdef CONFIG_P2P
 988         u8 addr[ETH_ALEN];
 989         u8 ip_addr_buf[4];
 990 #endif /* CONFIG_P2P */
 991
 992         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
 993                 return;
 994
 995         if (authorized)
 996                 sta->flags |= WLAN_STA_AUTHORIZED;
 997         else
 998                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 999
1000 #ifdef CONFIG_P2P
1001         if (hapd->p2p_group == NULL) {
1002                 if (sta->p2p_ie != NULL &&
1003                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1004                         dev_addr = addr;
1005         } else
1006                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1007
1008         if (dev_addr)
1009                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1010                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1011         else
1012 #endif /* CONFIG_P2P */
1013                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1014
1015         if (hapd->sta_authorized_cb)
1016                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1017                                         sta->addr, authorized, dev_addr);
1018
1019         if (authorized) {
1020                 char ip_addr[100];
1021                 ip_addr[0] = '\0';
1022 #ifdef CONFIG_P2P
1023                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1024                         os_snprintf(ip_addr, sizeof(ip_addr),
1025                                     " ip_addr=%u.%u.%u.%u",
1026                                     ip_addr_buf[0], ip_addr_buf[1],
1027                                     ip_addr_buf[2], ip_addr_buf[3]);
1028                 }
1029 #endif /* CONFIG_P2P */
1030
1031                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1032                         buf, ip_addr);
1033
1034                 if (hapd->msg_ctx_parent &&
1035                     hapd->msg_ctx_parent != hapd->msg_ctx)
1036                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1037                                           AP_STA_CONNECTED "%s%s",
1038                                           buf, ip_addr);
1039         } else {
1040                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1041
1042                 if (hapd->msg_ctx_parent &&
1043                     hapd->msg_ctx_parent != hapd->msg_ctx)
1044                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1045                                           AP_STA_DISCONNECTED "%s", buf);
1046         }
1047
1048 #ifdef CONFIG_FST
1049         if (hapd->iface->fst) {
1050                 if (authorized)
1051                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1052                 else
1053                         fst_notify_peer_disconnected(hapd->iface->fst,
1054                                                      sta->addr);
1055         }
1056 #endif /* CONFIG_FST */
1057 }
1058
1059
1060 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1061                        const u8 *addr, u16 reason)
1062 {
1063
1064         if (sta == NULL && addr)
1065                 sta = ap_get_sta(hapd, addr);
1066
1067         if (addr)
1068                 hostapd_drv_sta_deauth(hapd, addr, reason);
1069
1070         if (sta == NULL)
1071                 return;
1072         ap_sta_set_authorized(hapd, sta, 0);
1073         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1074         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1075         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1076         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
1077                    "for " MACSTR " (%d seconds - "
1078                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1079                    __func__, MAC2STR(sta->addr),
1080                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1081         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1082         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1083                                ap_handle_timer, hapd, sta);
1084         sta->timeout_next = STA_REMOVE;
1085
1086         sta->deauth_reason = reason;
1087         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1088         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1089         eloop_register_timeout(hapd->iface->drv_flags &
1090                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1091                                ap_sta_deauth_cb_timeout, hapd, sta);
1092 }
1093
1094
1095 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1096 {
1097         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1098                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1099                 return;
1100         }
1101         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1102         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1103         ap_sta_deauth_cb_timeout(hapd, sta);
1104 }
1105
1106
1107 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1108 {
1109         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1110                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1111                 return;
1112         }
1113         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1114         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1115         ap_sta_disassoc_cb_timeout(hapd, sta);
1116 }
1117
1118
1119 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1120                                       struct sta_info *sta)
1121 {
1122         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1123                 wpa_printf(MSG_DEBUG,
1124                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1125                            MACSTR,
1126                            hapd->conf->iface, MAC2STR(sta->addr));
1127         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1128                 wpa_printf(MSG_DEBUG,
1129                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1130                            MACSTR,
1131                            hapd->conf->iface, MAC2STR(sta->addr));
1132 }
1133
1134
1135 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1136 {
1137         int res;
1138
1139         buf[0] = '\0';
1140         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1141                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1142                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1143                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1144                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1145                            ""),
1146                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1147                            "[SHORT_PREAMBLE]" : ""),
1148                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1149                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1150                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1151                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1152                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1153                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1154                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1155                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1156                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1157                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1158                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1159                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1160                            "[WNM_SLEEP_MODE]" : ""));
1161         if (os_snprintf_error(buflen, res))
1162                 res = -1;
1163
1164         return res;
1165 }