libeap/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 #ifndef CONFIG_NO_VLAN
 176         if (sta->vlan_id_bound) {
 177                 /*
 178                  * Need to remove the STA entry before potentially removing the
 179                  * VLAN.
 180                  */
 181                 if (hapd->iface->driver_ap_teardown &&
 182                     !(sta->flags & WLAN_STA_PREAUTH))
 183                         hostapd_drv_sta_remove(hapd, sta->addr);
 184                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 185         }
 186 #endif /* CONFIG_NO_VLAN */
 187
 188         ap_sta_hash_del(hapd, sta);
 189         ap_sta_list_del(hapd, sta);
 190
 191         if (sta->aid > 0)
 192                 hapd->sta_aid[(sta->aid - 1) / 32] &=
 193                         ~BIT((sta->aid - 1) % 32);
 194
 195         hapd->num_sta--;
 196         if (sta->nonerp_set) {
 197                 sta->nonerp_set = 0;
 198                 hapd->iface->num_sta_non_erp--;
 199                 if (hapd->iface->num_sta_non_erp == 0)
 200                         set_beacon++;
 201         }
 202
 203         if (sta->no_short_slot_time_set) {
 204                 sta->no_short_slot_time_set = 0;
 205                 hapd->iface->num_sta_no_short_slot_time--;
 206                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 207                     && hapd->iface->num_sta_no_short_slot_time == 0)
 208                         set_beacon++;
 209         }
 210
 211         if (sta->no_short_preamble_set) {
 212                 sta->no_short_preamble_set = 0;
 213                 hapd->iface->num_sta_no_short_preamble--;
 214                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 215                     && hapd->iface->num_sta_no_short_preamble == 0)
 216                         set_beacon++;
 217         }
 218
 219         if (sta->no_ht_gf_set) {
 220                 sta->no_ht_gf_set = 0;
 221                 hapd->iface->num_sta_ht_no_gf--;
 222         }
 223
 224         if (sta->no_ht_set) {
 225                 sta->no_ht_set = 0;
 226                 hapd->iface->num_sta_no_ht--;
 227         }
 228
 229         if (sta->ht_20mhz_set) {
 230                 sta->ht_20mhz_set = 0;
 231                 hapd->iface->num_sta_ht_20mhz--;
 232         }
 233
 234 #ifdef CONFIG_IEEE80211N
 235         ht40_intolerant_remove(hapd->iface, sta);
 236 #endif /* CONFIG_IEEE80211N */
 237
 238 #ifdef CONFIG_P2P
 239         if (sta->no_p2p_set) {
 240                 sta->no_p2p_set = 0;
 241                 hapd->num_sta_no_p2p--;
 242                 if (hapd->num_sta_no_p2p == 0)
 243                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 244         }
 245 #endif /* CONFIG_P2P */
 246
 247 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 248         if (hostapd_ht_operation_update(hapd->iface) > 0)
 249                 set_beacon++;
 250 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 251
 252 #ifdef CONFIG_MESH
 253         if (hapd->mesh_sta_free_cb)
 254                 hapd->mesh_sta_free_cb(sta);
 255 #endif /* CONFIG_MESH */
 256
 257         if (set_beacon)
 258                 ieee802_11_set_beacons(hapd->iface);
 259
 260         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 261                    __func__, MAC2STR(sta->addr));
 262         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 263         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 264         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 265         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 266         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 267         sae_clear_retransmit_timer(hapd, sta);
 268
 269         ieee802_1x_free_station(sta);
 270         wpa_auth_sta_deinit(sta->wpa_sm);
 271         rsn_preauth_free_station(hapd, sta);
 272 #ifndef CONFIG_NO_RADIUS
 273         if (hapd->radius)
 274                 radius_client_flush_auth(hapd->radius, sta->addr);
 275 #endif /* CONFIG_NO_RADIUS */
 276
 277         os_free(sta->challenge);
 278
 279 #ifdef CONFIG_IEEE80211W
 280         os_free(sta->sa_query_trans_id);
 281         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 282 #endif /* CONFIG_IEEE80211W */
 283
 284 #ifdef CONFIG_P2P
 285         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 286 #endif /* CONFIG_P2P */
 287
 288 #ifdef CONFIG_INTERWORKING
 289         if (sta->gas_dialog) {
 290                 int i;
 291                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 292                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 293                 os_free(sta->gas_dialog);
 294         }
 295 #endif /* CONFIG_INTERWORKING */
 296
 297         wpabuf_free(sta->wps_ie);
 298         wpabuf_free(sta->p2p_ie);
 299         wpabuf_free(sta->hs20_ie);
 300 #ifdef CONFIG_FST
 301         wpabuf_free(sta->mb_ies);
 302 #endif /* CONFIG_FST */
 303
 304         os_free(sta->ht_capabilities);
 305         os_free(sta->vht_capabilities);
 306         hostapd_free_psk_list(sta->psk);
 307         os_free(sta->identity);
 308         os_free(sta->radius_cui);
 309         os_free(sta->remediation_url);
 310         wpabuf_free(sta->hs20_deauth_req);
 311         os_free(sta->hs20_session_info_url);
 312
 313 #ifdef CONFIG_SAE
 314         sae_clear_data(sta->sae);
 315         os_free(sta->sae);
 316 #endif /* CONFIG_SAE */
 317
 318         os_free(sta);
 319 }
 320
 321
 322 void hostapd_free_stas(struct hostapd_data *hapd)
 323 {
 324         struct sta_info *sta, *prev;
 325
 326         sta = hapd->sta_list;
 327
 328         while (sta) {
 329                 prev = sta;
 330                 if (sta->flags & WLAN_STA_AUTH) {
 331                         mlme_deauthenticate_indication(
 332                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 333                 }
 334                 sta = sta->next;
 335                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 336                            MAC2STR(prev->addr));
 337                 ap_free_sta(hapd, prev);
 338         }
 339 }
 340
 341
 342 /**
 343  * ap_handle_timer - Per STA timer handler
 344  * @eloop_ctx: struct hostapd_data *
 345  * @timeout_ctx: struct sta_info *
 346  *
 347  * This function is called to check station activity and to remove inactive
 348  * stations.
 349  */
 350 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 351 {
 352         struct hostapd_data *hapd = eloop_ctx;
 353         struct sta_info *sta = timeout_ctx;
 354         unsigned long next_time = 0;
 355         int reason;
 356
 357         wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
 358                    __func__, MAC2STR(sta->addr), sta->flags,
 359                    sta->timeout_next);
 360         if (sta->timeout_next == STA_REMOVE) {
 361                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 362                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 363                                "local deauth request");
 364                 ap_free_sta(hapd, sta);
 365                 return;
 366         }
 367
 368         if ((sta->flags & WLAN_STA_ASSOC) &&
 369             (sta->timeout_next == STA_NULLFUNC ||
 370              sta->timeout_next == STA_DISASSOC)) {
 371                 int inactive_sec;
 372                 /*
 373                  * Add random value to timeout so that we don't end up bouncing
 374                  * all stations at the same time if we have lots of associated
 375                  * stations that are idle (but keep re-associating).
 376                  */
 377                 int fuzz = os_random() % 20;
 378                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 379                 if (inactive_sec == -1) {
 380                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 381                                 "Check inactivity: Could not "
 382                                 "get station info from kernel driver for "
 383                                 MACSTR, MAC2STR(sta->addr));
 384                         /*
 385                          * The driver may not support this functionality.
 386                          * Anyway, try again after the next inactivity timeout,
 387                          * but do not disconnect the station now.
 388                          */
 389                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 390                 } else if (inactive_sec == -ENOENT) {
 391                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 392                                 "Station " MACSTR " has lost its driver entry",
 393                                 MAC2STR(sta->addr));
 394
 395                         /* Avoid sending client probe on removed client */
 396                         sta->timeout_next = STA_DISASSOC;
 397                         goto skip_poll;
 398                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 399                         /* station activity detected; reset timeout state */
 400                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 401                                 "Station " MACSTR " has been active %is ago",
 402                                 MAC2STR(sta->addr), inactive_sec);
 403                         sta->timeout_next = STA_NULLFUNC;
 404                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 405                                 inactive_sec;
 406                 } else {
 407                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 408                                 "Station " MACSTR " has been "
 409                                 "inactive too long: %d sec, max allowed: %d",
 410                                 MAC2STR(sta->addr), inactive_sec,
 411                                 hapd->conf->ap_max_inactivity);
 412
 413                         if (hapd->conf->skip_inactivity_poll)
 414                                 sta->timeout_next = STA_DISASSOC;
 415                 }
 416         }
 417
 418         if ((sta->flags & WLAN_STA_ASSOC) &&
 419             sta->timeout_next == STA_DISASSOC &&
 420             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 421             !hapd->conf->skip_inactivity_poll) {
 422                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 423                         " has ACKed data poll", MAC2STR(sta->addr));
 424                 /* data nullfunc frame poll did not produce TX errors; assume
 425                  * station ACKed it */
 426                 sta->timeout_next = STA_NULLFUNC;
 427                 next_time = hapd->conf->ap_max_inactivity;
 428         }
 429
 430 skip_poll:
 431         if (next_time) {
 432                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 433                            "for " MACSTR " (%lu seconds)",
 434                            __func__, MAC2STR(sta->addr), next_time);
 435                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 436                                        sta);
 437                 return;
 438         }
 439
 440         if (sta->timeout_next == STA_NULLFUNC &&
 441             (sta->flags & WLAN_STA_ASSOC)) {
 442                 wpa_printf(MSG_DEBUG, "  Polling STA");
 443                 sta->flags |= WLAN_STA_PENDING_POLL;
 444                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 445                                         sta->flags & WLAN_STA_WMM);
 446         } else if (sta->timeout_next != STA_REMOVE) {
 447                 int deauth = sta->timeout_next == STA_DEAUTH;
 448
 449                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 450                         "Timeout, sending %s info to STA " MACSTR,
 451                         deauth ? "deauthentication" : "disassociation",
 452                         MAC2STR(sta->addr));
 453
 454                 if (deauth) {
 455                         hostapd_drv_sta_deauth(
 456                                 hapd, sta->addr,
 457                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 458                 } else {
 459                         reason = (sta->timeout_next == STA_DISASSOC) ?
 460                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 461                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 462
 463                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 464                 }
 465         }
 466
 467         switch (sta->timeout_next) {
 468         case STA_NULLFUNC:
 469                 sta->timeout_next = STA_DISASSOC;
 470                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 471                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 472                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 473                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 474                                        hapd, sta);
 475                 break;
 476         case STA_DISASSOC:
 477         case STA_DISASSOC_FROM_CLI:
 478                 ap_sta_set_authorized(hapd, sta, 0);
 479                 sta->flags &= ~WLAN_STA_ASSOC;
 480                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 481                 if (!sta->acct_terminate_cause)
 482                         sta->acct_terminate_cause =
 483                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 484                 accounting_sta_stop(hapd, sta);
 485                 ieee802_1x_free_station(sta);
 486                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 487                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 488                                "inactivity");
 489                 reason = (sta->timeout_next == STA_DISASSOC) ?
 490                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 491                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 492                 sta->timeout_next = STA_DEAUTH;
 493                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 494                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 495                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 496                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 497                                        hapd, sta);
 498                 mlme_disassociate_indication(hapd, sta, reason);
 499                 break;
 500         case STA_DEAUTH:
 501         case STA_REMOVE:
 502                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 503                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 504                                "inactivity (timer DEAUTH/REMOVE)");
 505                 if (!sta->acct_terminate_cause)
 506                         sta->acct_terminate_cause =
 507                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 508                 mlme_deauthenticate_indication(
 509                         hapd, sta,
 510                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 511                 ap_free_sta(hapd, sta);
 512                 break;
 513         }
 514 }
 515
 516
 517 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 518 {
 519         struct hostapd_data *hapd = eloop_ctx;
 520         struct sta_info *sta = timeout_ctx;
 521
 522         if (!(sta->flags & WLAN_STA_AUTH)) {
 523                 if (sta->flags & WLAN_STA_GAS) {
 524                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 525                                    "entry " MACSTR, MAC2STR(sta->addr));
 526                         ap_free_sta(hapd, sta);
 527                 }
 528                 return;
 529         }
 530
 531         hostapd_drv_sta_deauth(hapd, sta->addr,
 532                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 533         mlme_deauthenticate_indication(hapd, sta,
 534                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 535         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 536                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 537                        "session timeout");
 538         sta->acct_terminate_cause =
 539                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 540         ap_free_sta(hapd, sta);
 541 }
 542
 543
 544 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 545                               u32 session_timeout)
 546 {
 547         if (eloop_replenish_timeout(session_timeout, 0,
 548                                     ap_handle_session_timer, hapd, sta) == 1) {
 549                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 550                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 551                                "to %d seconds", session_timeout);
 552         }
 553 }
 554
 555
 556 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 557                             u32 session_timeout)
 558 {
 559         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 560                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 561                        "seconds", session_timeout);
 562         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 563         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 564                                hapd, sta);
 565 }
 566
 567
 568 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 569 {
 570         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 571 }
 572
 573
 574 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 575 {
 576 #ifdef CONFIG_WNM
 577         struct hostapd_data *hapd = eloop_ctx;
 578         struct sta_info *sta = timeout_ctx;
 579
 580         wpa_printf(MSG_DEBUG, "WNM: Session warning time reached for " MACSTR,
 581                    MAC2STR(sta->addr));
 582         if (sta->hs20_session_info_url == NULL)
 583                 return;
 584
 585         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 586                                        sta->hs20_disassoc_timer);
 587 #endif /* CONFIG_WNM */
 588 }
 589
 590
 591 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 592                                     struct sta_info *sta, int warning_time)
 593 {
 594         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 595         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 596                                hapd, sta);
 597 }
 598
 599
 600 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 601 {
 602         struct sta_info *sta;
 603
 604         sta = ap_get_sta(hapd, addr);
 605         if (sta)
 606                 return sta;
 607
 608         wpa_printf(MSG_DEBUG, "  New STA");
 609         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 610                 /* FIX: might try to remove some old STAs first? */
 611                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 612                            hapd->num_sta, hapd->conf->max_num_sta);
 613                 return NULL;
 614         }
 615
 616         sta = os_zalloc(sizeof(struct sta_info));
 617         if (sta == NULL) {
 618                 wpa_printf(MSG_ERROR, "malloc failed");
 619                 return NULL;
 620         }
 621         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 622         accounting_sta_get_id(hapd, sta);
 623
 624         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 625                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 626                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 627                            __func__, MAC2STR(addr),
 628                            hapd->conf->ap_max_inactivity);
 629                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 630                                        ap_handle_timer, hapd, sta);
 631         }
 632
 633         /* initialize STA info data */
 634         os_memcpy(sta->addr, addr, ETH_ALEN);
 635         sta->next = hapd->sta_list;
 636         hapd->sta_list = sta;
 637         hapd->num_sta++;
 638         ap_sta_hash_add(hapd, sta);
 639         ap_sta_remove_in_other_bss(hapd, sta);
 640         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 641         dl_list_init(&sta->ip6addr);
 642
 643         return sta;
 644 }
 645
 646
 647 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 648 {
 649         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 650
 651         if (sta->ipaddr)
 652                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 653         ap_sta_ip6addr_del(hapd, sta);
 654
 655         wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
 656                    MAC2STR(sta->addr));
 657         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 658             sta->flags & WLAN_STA_ASSOC) {
 659                 wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
 660                            " from kernel driver.", MAC2STR(sta->addr));
 661                 return -1;
 662         }
 663         return 0;
 664 }
 665
 666
 667 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 668                                        struct sta_info *sta)
 669 {
 670         struct hostapd_iface *iface = hapd->iface;
 671         size_t i;
 672
 673         for (i = 0; i < iface->num_bss; i++) {
 674                 struct hostapd_data *bss = iface->bss[i];
 675                 struct sta_info *sta2;
 676                 /* bss should always be set during operation, but it may be
 677                  * NULL during reconfiguration. Assume the STA is not
 678                  * associated to another BSS in that case to avoid NULL pointer
 679                  * dereferences. */
 680                 if (bss == hapd || bss == NULL)
 681                         continue;
 682                 sta2 = ap_get_sta(bss, sta->addr);
 683                 if (!sta2)
 684                         continue;
 685
 686                 ap_sta_disconnect(bss, sta2, sta2->addr,
 687                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 688         }
 689 }
 690
 691
 692 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 693 {
 694         struct hostapd_data *hapd = eloop_ctx;
 695         struct sta_info *sta = timeout_ctx;
 696
 697         ap_sta_remove(hapd, sta);
 698         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 699 }
 700
 701
 702 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 703                          u16 reason)
 704 {
 705         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 706                    hapd->conf->iface, MAC2STR(sta->addr));
 707         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 708         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 709         ap_sta_set_authorized(hapd, sta, 0);
 710         sta->timeout_next = STA_DEAUTH;
 711         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 712                    "for " MACSTR " (%d seconds - "
 713                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 714                    __func__, MAC2STR(sta->addr),
 715                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 716         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 717         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 718                                ap_handle_timer, hapd, sta);
 719         accounting_sta_stop(hapd, sta);
 720         ieee802_1x_free_station(sta);
 721
 722         sta->disassoc_reason = reason;
 723         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 724         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 725         eloop_register_timeout(hapd->iface->drv_flags &
 726                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 727                                ap_sta_disassoc_cb_timeout, hapd, sta);
 728 }
 729
 730
 731 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 732 {
 733         struct hostapd_data *hapd = eloop_ctx;
 734         struct sta_info *sta = timeout_ctx;
 735
 736         ap_sta_remove(hapd, sta);
 737         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 738 }
 739
 740
 741 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 742                            u16 reason)
 743 {
 744         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 745                    hapd->conf->iface, MAC2STR(sta->addr));
 746         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 747         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 748         ap_sta_set_authorized(hapd, sta, 0);
 749         sta->timeout_next = STA_REMOVE;
 750         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 751                    "for " MACSTR " (%d seconds - "
 752                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 753                    __func__, MAC2STR(sta->addr),
 754                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 755         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 756         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 757                                ap_handle_timer, hapd, sta);
 758         accounting_sta_stop(hapd, sta);
 759         ieee802_1x_free_station(sta);
 760
 761         sta->deauth_reason = reason;
 762         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 763         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 764         eloop_register_timeout(hapd->iface->drv_flags &
 765                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 766                                ap_sta_deauth_cb_timeout, hapd, sta);
 767 }
 768
 769
 770 #ifdef CONFIG_WPS
 771 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 772                       struct sta_info *sta, void *ctx)
 773 {
 774         if (sta && (sta->flags & WLAN_STA_WPS)) {
 775                 ap_sta_deauthenticate(hapd, sta,
 776                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 777                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 778                            __func__, MAC2STR(sta->addr));
 779                 return 1;
 780         }
 781
 782         return 0;
 783 }
 784 #endif /* CONFIG_WPS */
 785
 786
 787 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 788 {
 789 #ifndef CONFIG_NO_VLAN
 790         const char *iface;
 791         struct hostapd_vlan *vlan = NULL;
 792         int ret;
 793         int old_vlanid = sta->vlan_id_bound;
 794
 795         iface = hapd->conf->iface;
 796         if (hapd->conf->ssid.vlan[0])
 797                 iface = hapd->conf->ssid.vlan;
 798
 799         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 800                 sta->vlan_id = 0;
 801         else if (sta->vlan_id > 0) {
 802                 struct hostapd_vlan *wildcard_vlan = NULL;
 803                 vlan = hapd->conf->vlan;
 804                 while (vlan) {
 805                         if (vlan->vlan_id == sta->vlan_id)
 806                                 break;
 807                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 808                                 wildcard_vlan = vlan;
 809                         vlan = vlan->next;
 810                 }
 811                 if (!vlan)
 812                         vlan = wildcard_vlan;
 813                 if (vlan)
 814                         iface = vlan->ifname;
 815         }
 816
 817         /*
 818          * Do not increment ref counters if the VLAN ID remains same, but do
 819          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 820          * have been called before.
 821          */
 822         if (sta->vlan_id == old_vlanid)
 823                 goto skip_counting;
 824
 825         if (sta->vlan_id > 0 && vlan == NULL) {
 826                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 827                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 828                                "binding station to (vlan_id=%d)",
 829                                sta->vlan_id);
 830                 ret = -1;
 831                 goto done;
 832         } else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
 833                 vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
 834                 if (vlan == NULL) {
 835                         hostapd_logger(hapd, sta->addr,
 836                                        HOSTAPD_MODULE_IEEE80211,
 837                                        HOSTAPD_LEVEL_DEBUG, "could not add "
 838                                        "dynamic VLAN interface for vlan_id=%d",
 839                                        sta->vlan_id);
 840                         ret = -1;
 841                         goto done;
 842                 }
 843
 844                 iface = vlan->ifname;
 845                 if (vlan_setup_encryption_dyn(hapd, iface) != 0) {
 846                         hostapd_logger(hapd, sta->addr,
 847                                        HOSTAPD_MODULE_IEEE80211,
 848                                        HOSTAPD_LEVEL_DEBUG, "could not "
 849                                        "configure encryption for dynamic VLAN "
 850                                        "interface for vlan_id=%d",
 851                                        sta->vlan_id);
 852                 }
 853
 854                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 855                                HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
 856                                "interface '%s'", iface);
 857         } else if (vlan && vlan->vlan_id == sta->vlan_id) {
 858                 if (vlan->dynamic_vlan > 0) {
 859                         vlan->dynamic_vlan++;
 860                         hostapd_logger(hapd, sta->addr,
 861                                        HOSTAPD_MODULE_IEEE80211,
 862                                        HOSTAPD_LEVEL_DEBUG, "updated existing "
 863                                        "dynamic VLAN interface '%s'", iface);
 864                 }
 865
 866                 /*
 867                  * Update encryption configuration for statically generated
 868                  * VLAN interface. This is only used for static WEP
 869                  * configuration for the case where hostapd did not yet know
 870                  * which keys are to be used when the interface was added.
 871                  */
 872                 if (vlan_setup_encryption_dyn(hapd, iface) != 0) {
 873                         hostapd_logger(hapd, sta->addr,
 874                                        HOSTAPD_MODULE_IEEE80211,
 875                                        HOSTAPD_LEVEL_DEBUG, "could not "
 876                                        "configure encryption for VLAN "
 877                                        "interface for vlan_id=%d",
 878                                        sta->vlan_id);
 879                 }
 880         }
 881
 882         /* ref counters have been increased, so mark the station */
 883         sta->vlan_id_bound = sta->vlan_id;
 884
 885 skip_counting:
 886         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 887                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 888                        "'%s'", iface);
 889
 890         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 891                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 892
 893         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 894         if (ret < 0) {
 895                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 896                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
 897                                "entry to vlan_id=%d", sta->vlan_id);
 898         }
 899
 900         /* During 1x reauth, if the vlan id changes, then remove the old id. */
 901         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
 902                 vlan_remove_dynamic(hapd, old_vlanid);
 903 done:
 904
 905         return ret;
 906 #else /* CONFIG_NO_VLAN */
 907         return 0;
 908 #endif /* CONFIG_NO_VLAN */
 909 }
 910
 911
 912 #ifdef CONFIG_IEEE80211W
 913
 914 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 915 {
 916         u32 tu;
 917         struct os_reltime now, passed;
 918         os_get_reltime(&now);
 919         os_reltime_sub(&now, &sta->sa_query_start, &passed);
 920         tu = (passed.sec * 1000000 + passed.usec) / 1024;
 921         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
 922                 hostapd_logger(hapd, sta->addr,
 923                                HOSTAPD_MODULE_IEEE80211,
 924                                HOSTAPD_LEVEL_DEBUG,
 925                                "association SA Query timed out");
 926                 sta->sa_query_timed_out = 1;
 927                 os_free(sta->sa_query_trans_id);
 928                 sta->sa_query_trans_id = NULL;
 929                 sta->sa_query_count = 0;
 930                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 931                 return 1;
 932         }
 933
 934         return 0;
 935 }
 936
 937
 938 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
 939 {
 940         struct hostapd_data *hapd = eloop_ctx;
 941         struct sta_info *sta = timeout_ctx;
 942         unsigned int timeout, sec, usec;
 943         u8 *trans_id, *nbuf;
 944
 945         if (sta->sa_query_count > 0 &&
 946             ap_check_sa_query_timeout(hapd, sta))
 947                 return;
 948
 949         nbuf = os_realloc_array(sta->sa_query_trans_id,
 950                                 sta->sa_query_count + 1,
 951                                 WLAN_SA_QUERY_TR_ID_LEN);
 952         if (nbuf == NULL)
 953                 return;
 954         if (sta->sa_query_count == 0) {
 955                 /* Starting a new SA Query procedure */
 956                 os_get_reltime(&sta->sa_query_start);
 957         }
 958         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
 959         sta->sa_query_trans_id = nbuf;
 960         sta->sa_query_count++;
 961
 962         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
 963                 /*
 964                  * We don't really care which ID is used here, so simply
 965                  * hardcode this if the mostly theoretical os_get_random()
 966                  * failure happens.
 967                  */
 968                 trans_id[0] = 0x12;
 969                 trans_id[1] = 0x34;
 970         }
 971
 972         timeout = hapd->conf->assoc_sa_query_retry_timeout;
 973         sec = ((timeout / 1000) * 1024) / 1000;
 974         usec = (timeout % 1000) * 1024;
 975         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
 976
 977         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 978                        HOSTAPD_LEVEL_DEBUG,
 979                        "association SA Query attempt %d", sta->sa_query_count);
 980
 981         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
 982 }
 983
 984
 985 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
 986 {
 987         ap_sa_query_timer(hapd, sta);
 988 }
 989
 990
 991 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
 992 {
 993         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 994         os_free(sta->sa_query_trans_id);
 995         sta->sa_query_trans_id = NULL;
 996         sta->sa_query_count = 0;
 997 }
 998
 999 #endif /* CONFIG_IEEE80211W */
1000
1001
1002 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1003                            int authorized)
1004 {
1005         const u8 *dev_addr = NULL;
1006         char buf[100];
1007 #ifdef CONFIG_P2P
1008         u8 addr[ETH_ALEN];
1009         u8 ip_addr_buf[4];
1010 #endif /* CONFIG_P2P */
1011
1012         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1013                 return;
1014
1015         if (authorized)
1016                 sta->flags |= WLAN_STA_AUTHORIZED;
1017         else
1018                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1019
1020 #ifdef CONFIG_P2P
1021         if (hapd->p2p_group == NULL) {
1022                 if (sta->p2p_ie != NULL &&
1023                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1024                         dev_addr = addr;
1025         } else
1026                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1027
1028         if (dev_addr)
1029                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1030                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1031         else
1032 #endif /* CONFIG_P2P */
1033                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1034
1035         if (hapd->sta_authorized_cb)
1036                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1037                                         sta->addr, authorized, dev_addr);
1038
1039         if (authorized) {
1040                 char ip_addr[100];
1041                 ip_addr[0] = '\0';
1042 #ifdef CONFIG_P2P
1043                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1044                         os_snprintf(ip_addr, sizeof(ip_addr),
1045                                     " ip_addr=%u.%u.%u.%u",
1046                                     ip_addr_buf[0], ip_addr_buf[1],
1047                                     ip_addr_buf[2], ip_addr_buf[3]);
1048                 }
1049 #endif /* CONFIG_P2P */
1050
1051                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1052                         buf, ip_addr);
1053
1054                 if (hapd->msg_ctx_parent &&
1055                     hapd->msg_ctx_parent != hapd->msg_ctx)
1056                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1057                                           AP_STA_CONNECTED "%s%s",
1058                                           buf, ip_addr);
1059         } else {
1060                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1061
1062                 if (hapd->msg_ctx_parent &&
1063                     hapd->msg_ctx_parent != hapd->msg_ctx)
1064                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1065                                           AP_STA_DISCONNECTED "%s", buf);
1066         }
1067
1068 #ifdef CONFIG_FST
1069         if (hapd->iface->fst) {
1070                 if (authorized)
1071                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1072                 else
1073                         fst_notify_peer_disconnected(hapd->iface->fst,
1074                                                      sta->addr);
1075         }
1076 #endif /* CONFIG_FST */
1077 }
1078
1079
1080 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1081                        const u8 *addr, u16 reason)
1082 {
1083
1084         if (sta == NULL && addr)
1085                 sta = ap_get_sta(hapd, addr);
1086
1087         if (addr)
1088                 hostapd_drv_sta_deauth(hapd, addr, reason);
1089
1090         if (sta == NULL)
1091                 return;
1092         ap_sta_set_authorized(hapd, sta, 0);
1093         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1094         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1095         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1096         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
1097                    "for " MACSTR " (%d seconds - "
1098                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1099                    __func__, MAC2STR(sta->addr),
1100                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1101         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1102         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1103                                ap_handle_timer, hapd, sta);
1104         sta->timeout_next = STA_REMOVE;
1105
1106         sta->deauth_reason = reason;
1107         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1108         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1109         eloop_register_timeout(hapd->iface->drv_flags &
1110                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1111                                ap_sta_deauth_cb_timeout, hapd, sta);
1112 }
1113
1114
1115 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1116 {
1117         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1118                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1119                 return;
1120         }
1121         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1122         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1123         ap_sta_deauth_cb_timeout(hapd, sta);
1124 }
1125
1126
1127 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1128 {
1129         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1130                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1131                 return;
1132         }
1133         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1134         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1135         ap_sta_disassoc_cb_timeout(hapd, sta);
1136 }
1137
1138
1139 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1140 {
1141         int res;
1142
1143         buf[0] = '\0';
1144         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1145                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1146                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1147                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1148                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1149                            ""),
1150                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1151                            "[SHORT_PREAMBLE]" : ""),
1152                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1153                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1154                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1155                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1156                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1157                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1158                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1159                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1160                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1161                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1162                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1163                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1164                            "[WNM_SLEEP_MODE]" : ""));
1165         if (os_snprintf_error(buflen, res))
1166                 res = -1;
1167
1168         return res;
1169 }