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