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 #include "vlan.h"
  38
  39 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
  40                                        struct sta_info *sta);
  41 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
  42 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
  43 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  44 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  45 #ifdef CONFIG_IEEE80211W
  46 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
  47 #endif /* CONFIG_IEEE80211W */
  48 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
  49
  50 int ap_for_each_sta(struct hostapd_data *hapd,
  51                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
  52                               void *ctx),
  53                     void *ctx)
  54 {
  55         struct sta_info *sta;
  56
  57         for (sta = hapd->sta_list; sta; sta = sta->next) {
  58                 if (cb(hapd, sta, ctx))
  59                         return 1;
  60         }
  61
  62         return 0;
  63 }
  64
  65
  66 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
  67 {
  68         struct sta_info *s;
  69
  70         s = hapd->sta_hash[STA_HASH(sta)];
  71         while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
  72                 s = s->hnext;
  73         return s;
  74 }
  75
  76
  77 #ifdef CONFIG_P2P
  78 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
  79 {
  80         struct sta_info *sta;
  81
  82         for (sta = hapd->sta_list; sta; sta = sta->next) {
  83                 const u8 *p2p_dev_addr;
  84
  85                 if (sta->p2p_ie == NULL)
  86                         continue;
  87
  88                 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
  89                 if (p2p_dev_addr == NULL)
  90                         continue;
  91
  92                 if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
  93                         return sta;
  94         }
  95
  96         return NULL;
  97 }
  98 #endif /* CONFIG_P2P */
  99
 100
 101 static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
 102 {
 103         struct sta_info *tmp;
 104
 105         if (hapd->sta_list == sta) {
 106                 hapd->sta_list = sta->next;
 107                 return;
 108         }
 109
 110         tmp = hapd->sta_list;
 111         while (tmp != NULL && tmp->next != sta)
 112                 tmp = tmp->next;
 113         if (tmp == NULL) {
 114                 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
 115                            "list.", MAC2STR(sta->addr));
 116         } else
 117                 tmp->next = sta->next;
 118 }
 119
 120
 121 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
 122 {
 123         sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
 124         hapd->sta_hash[STA_HASH(sta->addr)] = sta;
 125 }
 126
 127
 128 static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
 129 {
 130         struct sta_info *s;
 131
 132         s = hapd->sta_hash[STA_HASH(sta->addr)];
 133         if (s == NULL) return;
 134         if (os_memcmp(s->addr, sta->addr, 6) == 0) {
 135                 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
 136                 return;
 137         }
 138
 139         while (s->hnext != NULL &&
 140                os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
 141                 s = s->hnext;
 142         if (s->hnext != NULL)
 143                 s->hnext = s->hnext->hnext;
 144         else
 145                 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
 146                            " from hash table", MAC2STR(sta->addr));
 147 }
 148
 149
 150 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta)
 151 {
 152         sta_ip6addr_del(hapd, sta);
 153 }
 154
 155
 156 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 157 {
 158         int set_beacon = 0;
 159
 160         accounting_sta_stop(hapd, sta);
 161
 162         /* just in case */
 163         ap_sta_set_authorized(hapd, sta, 0);
 164
 165         if (sta->flags & WLAN_STA_WDS)
 166                 hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
 167
 168         if (sta->ipaddr)
 169                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 170         ap_sta_ip6addr_del(hapd, sta);
 171
 172         if (!hapd->iface->driver_ap_teardown &&
 173             !(sta->flags & WLAN_STA_PREAUTH))
 174                 hostapd_drv_sta_remove(hapd, sta->addr);
 175
 176         ap_sta_hash_del(hapd, sta);
 177         ap_sta_list_del(hapd, sta);
 178
 179         if (sta->aid > 0)
 180                 hapd->sta_aid[(sta->aid - 1) / 32] &=
 181                         ~BIT((sta->aid - 1) % 32);
 182
 183         hapd->num_sta--;
 184         if (sta->nonerp_set) {
 185                 sta->nonerp_set = 0;
 186                 hapd->iface->num_sta_non_erp--;
 187                 if (hapd->iface->num_sta_non_erp == 0)
 188                         set_beacon++;
 189         }
 190
 191         if (sta->no_short_slot_time_set) {
 192                 sta->no_short_slot_time_set = 0;
 193                 hapd->iface->num_sta_no_short_slot_time--;
 194                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 195                     && hapd->iface->num_sta_no_short_slot_time == 0)
 196                         set_beacon++;
 197         }
 198
 199         if (sta->no_short_preamble_set) {
 200                 sta->no_short_preamble_set = 0;
 201                 hapd->iface->num_sta_no_short_preamble--;
 202                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 203                     && hapd->iface->num_sta_no_short_preamble == 0)
 204                         set_beacon++;
 205         }
 206
 207         if (sta->no_ht_gf_set) {
 208                 sta->no_ht_gf_set = 0;
 209                 hapd->iface->num_sta_ht_no_gf--;
 210         }
 211
 212         if (sta->no_ht_set) {
 213                 sta->no_ht_set = 0;
 214                 hapd->iface->num_sta_no_ht--;
 215         }
 216
 217         if (sta->ht_20mhz_set) {
 218                 sta->ht_20mhz_set = 0;
 219                 hapd->iface->num_sta_ht_20mhz--;
 220         }
 221
 222 #ifdef CONFIG_IEEE80211N
 223         ht40_intolerant_remove(hapd->iface, sta);
 224 #endif /* CONFIG_IEEE80211N */
 225
 226 #ifdef CONFIG_P2P
 227         if (sta->no_p2p_set) {
 228                 sta->no_p2p_set = 0;
 229                 hapd->num_sta_no_p2p--;
 230                 if (hapd->num_sta_no_p2p == 0)
 231                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 232         }
 233 #endif /* CONFIG_P2P */
 234
 235 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 236         if (hostapd_ht_operation_update(hapd->iface) > 0)
 237                 set_beacon++;
 238 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 239
 240 #ifdef CONFIG_MESH
 241         if (hapd->mesh_sta_free_cb)
 242                 hapd->mesh_sta_free_cb(hapd, sta);
 243 #endif /* CONFIG_MESH */
 244
 245         if (set_beacon)
 246                 ieee802_11_set_beacons(hapd->iface);
 247
 248         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 249                    __func__, MAC2STR(sta->addr));
 250         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 251         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 252         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 253         ap_sta_clear_disconnect_timeouts(hapd, sta);
 254         sae_clear_retransmit_timer(hapd, sta);
 255
 256         ieee802_1x_free_station(hapd, sta);
 257         wpa_auth_sta_deinit(sta->wpa_sm);
 258         rsn_preauth_free_station(hapd, sta);
 259 #ifndef CONFIG_NO_RADIUS
 260         if (hapd->radius)
 261                 radius_client_flush_auth(hapd->radius, sta->addr);
 262 #endif /* CONFIG_NO_RADIUS */
 263
 264 #ifndef CONFIG_NO_VLAN
 265         /*
 266          * sta->wpa_sm->group needs to be released before so that
 267          * vlan_remove_dynamic() can check that no stations are left on the
 268          * AP_VLAN netdev.
 269          */
 270         if (sta->vlan_id)
 271                 vlan_remove_dynamic(hapd, sta->vlan_id);
 272         if (sta->vlan_id_bound) {
 273                 /*
 274                  * Need to remove the STA entry before potentially removing the
 275                  * VLAN.
 276                  */
 277                 if (hapd->iface->driver_ap_teardown &&
 278                     !(sta->flags & WLAN_STA_PREAUTH))
 279                         hostapd_drv_sta_remove(hapd, sta->addr);
 280                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 281         }
 282 #endif /* CONFIG_NO_VLAN */
 283
 284         os_free(sta->challenge);
 285
 286 #ifdef CONFIG_IEEE80211W
 287         os_free(sta->sa_query_trans_id);
 288         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 289 #endif /* CONFIG_IEEE80211W */
 290
 291 #ifdef CONFIG_P2P
 292         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 293 #endif /* CONFIG_P2P */
 294
 295 #ifdef CONFIG_INTERWORKING
 296         if (sta->gas_dialog) {
 297                 int i;
 298                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 299                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 300                 os_free(sta->gas_dialog);
 301         }
 302 #endif /* CONFIG_INTERWORKING */
 303
 304         wpabuf_free(sta->wps_ie);
 305         wpabuf_free(sta->p2p_ie);
 306         wpabuf_free(sta->hs20_ie);
 307 #ifdef CONFIG_FST
 308         wpabuf_free(sta->mb_ies);
 309 #endif /* CONFIG_FST */
 310
 311         os_free(sta->ht_capabilities);
 312         os_free(sta->vht_capabilities);
 313         hostapd_free_psk_list(sta->psk);
 314         os_free(sta->identity);
 315         os_free(sta->radius_cui);
 316         os_free(sta->remediation_url);
 317         wpabuf_free(sta->hs20_deauth_req);
 318         os_free(sta->hs20_session_info_url);
 319
 320 #ifdef CONFIG_SAE
 321         sae_clear_data(sta->sae);
 322         os_free(sta->sae);
 323 #endif /* CONFIG_SAE */
 324
 325         os_free(sta);
 326 }
 327
 328
 329 void hostapd_free_stas(struct hostapd_data *hapd)
 330 {
 331         struct sta_info *sta, *prev;
 332
 333         sta = hapd->sta_list;
 334
 335         while (sta) {
 336                 prev = sta;
 337                 if (sta->flags & WLAN_STA_AUTH) {
 338                         mlme_deauthenticate_indication(
 339                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 340                 }
 341                 sta = sta->next;
 342                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 343                            MAC2STR(prev->addr));
 344                 ap_free_sta(hapd, prev);
 345         }
 346 }
 347
 348
 349 /**
 350  * ap_handle_timer - Per STA timer handler
 351  * @eloop_ctx: struct hostapd_data *
 352  * @timeout_ctx: struct sta_info *
 353  *
 354  * This function is called to check station activity and to remove inactive
 355  * stations.
 356  */
 357 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 358 {
 359         struct hostapd_data *hapd = eloop_ctx;
 360         struct sta_info *sta = timeout_ctx;
 361         unsigned long next_time = 0;
 362         int reason;
 363
 364         wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
 365                    hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
 366                    sta->timeout_next);
 367         if (sta->timeout_next == STA_REMOVE) {
 368                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 369                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 370                                "local deauth request");
 371                 ap_free_sta(hapd, sta);
 372                 return;
 373         }
 374
 375         if ((sta->flags & WLAN_STA_ASSOC) &&
 376             (sta->timeout_next == STA_NULLFUNC ||
 377              sta->timeout_next == STA_DISASSOC)) {
 378                 int inactive_sec;
 379                 /*
 380                  * Add random value to timeout so that we don't end up bouncing
 381                  * all stations at the same time if we have lots of associated
 382                  * stations that are idle (but keep re-associating).
 383                  */
 384                 int fuzz = os_random() % 20;
 385                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 386                 if (inactive_sec == -1) {
 387                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 388                                 "Check inactivity: Could not "
 389                                 "get station info from kernel driver for "
 390                                 MACSTR, MAC2STR(sta->addr));
 391                         /*
 392                          * The driver may not support this functionality.
 393                          * Anyway, try again after the next inactivity timeout,
 394                          * but do not disconnect the station now.
 395                          */
 396                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 397                 } else if (inactive_sec == -ENOENT) {
 398                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 399                                 "Station " MACSTR " has lost its driver entry",
 400                                 MAC2STR(sta->addr));
 401
 402                         /* Avoid sending client probe on removed client */
 403                         sta->timeout_next = STA_DISASSOC;
 404                         goto skip_poll;
 405                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 406                         /* station activity detected; reset timeout state */
 407                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 408                                 "Station " MACSTR " has been active %is ago",
 409                                 MAC2STR(sta->addr), inactive_sec);
 410                         sta->timeout_next = STA_NULLFUNC;
 411                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 412                                 inactive_sec;
 413                 } else {
 414                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 415                                 "Station " MACSTR " has been "
 416                                 "inactive too long: %d sec, max allowed: %d",
 417                                 MAC2STR(sta->addr), inactive_sec,
 418                                 hapd->conf->ap_max_inactivity);
 419
 420                         if (hapd->conf->skip_inactivity_poll)
 421                                 sta->timeout_next = STA_DISASSOC;
 422                 }
 423         }
 424
 425         if ((sta->flags & WLAN_STA_ASSOC) &&
 426             sta->timeout_next == STA_DISASSOC &&
 427             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 428             !hapd->conf->skip_inactivity_poll) {
 429                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 430                         " has ACKed data poll", MAC2STR(sta->addr));
 431                 /* data nullfunc frame poll did not produce TX errors; assume
 432                  * station ACKed it */
 433                 sta->timeout_next = STA_NULLFUNC;
 434                 next_time = hapd->conf->ap_max_inactivity;
 435         }
 436
 437 skip_poll:
 438         if (next_time) {
 439                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 440                            "for " MACSTR " (%lu seconds)",
 441                            __func__, MAC2STR(sta->addr), next_time);
 442                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 443                                        sta);
 444                 return;
 445         }
 446
 447         if (sta->timeout_next == STA_NULLFUNC &&
 448             (sta->flags & WLAN_STA_ASSOC)) {
 449                 wpa_printf(MSG_DEBUG, "  Polling STA");
 450                 sta->flags |= WLAN_STA_PENDING_POLL;
 451                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 452                                         sta->flags & WLAN_STA_WMM);
 453         } else if (sta->timeout_next != STA_REMOVE) {
 454                 int deauth = sta->timeout_next == STA_DEAUTH;
 455
 456                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 457                         "Timeout, sending %s info to STA " MACSTR,
 458                         deauth ? "deauthentication" : "disassociation",
 459                         MAC2STR(sta->addr));
 460
 461                 if (deauth) {
 462                         hostapd_drv_sta_deauth(
 463                                 hapd, sta->addr,
 464                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 465                 } else {
 466                         reason = (sta->timeout_next == STA_DISASSOC) ?
 467                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 468                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 469
 470                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 471                 }
 472         }
 473
 474         switch (sta->timeout_next) {
 475         case STA_NULLFUNC:
 476                 sta->timeout_next = STA_DISASSOC;
 477                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 478                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 479                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 480                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 481                                        hapd, sta);
 482                 break;
 483         case STA_DISASSOC:
 484         case STA_DISASSOC_FROM_CLI:
 485                 ap_sta_set_authorized(hapd, sta, 0);
 486                 sta->flags &= ~WLAN_STA_ASSOC;
 487                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 488                 if (!sta->acct_terminate_cause)
 489                         sta->acct_terminate_cause =
 490                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 491                 accounting_sta_stop(hapd, sta);
 492                 ieee802_1x_free_station(hapd, sta);
 493                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 494                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 495                                "inactivity");
 496                 reason = (sta->timeout_next == STA_DISASSOC) ?
 497                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 498                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 499                 sta->timeout_next = STA_DEAUTH;
 500                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 501                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 502                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 503                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 504                                        hapd, sta);
 505                 mlme_disassociate_indication(hapd, sta, reason);
 506                 break;
 507         case STA_DEAUTH:
 508         case STA_REMOVE:
 509                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 510                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 511                                "inactivity (timer DEAUTH/REMOVE)");
 512                 if (!sta->acct_terminate_cause)
 513                         sta->acct_terminate_cause =
 514                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 515                 mlme_deauthenticate_indication(
 516                         hapd, sta,
 517                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 518                 ap_free_sta(hapd, sta);
 519                 break;
 520         }
 521 }
 522
 523
 524 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 525 {
 526         struct hostapd_data *hapd = eloop_ctx;
 527         struct sta_info *sta = timeout_ctx;
 528
 529         wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
 530                    hapd->conf->iface, MAC2STR(sta->addr));
 531         if (!(sta->flags & WLAN_STA_AUTH)) {
 532                 if (sta->flags & WLAN_STA_GAS) {
 533                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 534                                    "entry " MACSTR, MAC2STR(sta->addr));
 535                         ap_free_sta(hapd, sta);
 536                 }
 537                 return;
 538         }
 539
 540         hostapd_drv_sta_deauth(hapd, sta->addr,
 541                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 542         mlme_deauthenticate_indication(hapd, sta,
 543                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 544         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 545                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 546                        "session timeout");
 547         sta->acct_terminate_cause =
 548                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 549         ap_free_sta(hapd, sta);
 550 }
 551
 552
 553 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 554                               u32 session_timeout)
 555 {
 556         if (eloop_replenish_timeout(session_timeout, 0,
 557                                     ap_handle_session_timer, hapd, sta) == 1) {
 558                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 559                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 560                                "to %d seconds", session_timeout);
 561         }
 562 }
 563
 564
 565 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 566                             u32 session_timeout)
 567 {
 568         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 569                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 570                        "seconds", session_timeout);
 571         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 572         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 573                                hapd, sta);
 574 }
 575
 576
 577 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 578 {
 579         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 580 }
 581
 582
 583 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 584 {
 585 #ifdef CONFIG_WNM
 586         struct hostapd_data *hapd = eloop_ctx;
 587         struct sta_info *sta = timeout_ctx;
 588
 589         wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
 590                    MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
 591         if (sta->hs20_session_info_url == NULL)
 592                 return;
 593
 594         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 595                                        sta->hs20_disassoc_timer);
 596 #endif /* CONFIG_WNM */
 597 }
 598
 599
 600 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 601                                     struct sta_info *sta, int warning_time)
 602 {
 603         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 604         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 605                                hapd, sta);
 606 }
 607
 608
 609 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 610 {
 611         struct sta_info *sta;
 612
 613         sta = ap_get_sta(hapd, addr);
 614         if (sta)
 615                 return sta;
 616
 617         wpa_printf(MSG_DEBUG, "  New STA");
 618         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 619                 /* FIX: might try to remove some old STAs first? */
 620                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 621                            hapd->num_sta, hapd->conf->max_num_sta);
 622                 return NULL;
 623         }
 624
 625         sta = os_zalloc(sizeof(struct sta_info));
 626         if (sta == NULL) {
 627                 wpa_printf(MSG_ERROR, "malloc failed");
 628                 return NULL;
 629         }
 630         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 631         if (accounting_sta_get_id(hapd, sta) < 0) {
 632                 os_free(sta);
 633                 return NULL;
 634         }
 635
 636         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 637                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 638                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 639                            __func__, MAC2STR(addr),
 640                            hapd->conf->ap_max_inactivity);
 641                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 642                                        ap_handle_timer, hapd, sta);
 643         }
 644
 645         /* initialize STA info data */
 646         os_memcpy(sta->addr, addr, ETH_ALEN);
 647         sta->next = hapd->sta_list;
 648         hapd->sta_list = sta;
 649         hapd->num_sta++;
 650         ap_sta_hash_add(hapd, sta);
 651         ap_sta_remove_in_other_bss(hapd, sta);
 652         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 653         dl_list_init(&sta->ip6addr);
 654
 655         return sta;
 656 }
 657
 658
 659 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 660 {
 661         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 662
 663         if (sta->ipaddr)
 664                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 665         ap_sta_ip6addr_del(hapd, sta);
 666
 667         wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
 668                    hapd->conf->iface, MAC2STR(sta->addr));
 669         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 670             sta->flags & WLAN_STA_ASSOC) {
 671                 wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
 672                            " from kernel driver",
 673                            hapd->conf->iface, MAC2STR(sta->addr));
 674                 return -1;
 675         }
 676         return 0;
 677 }
 678
 679
 680 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 681                                        struct sta_info *sta)
 682 {
 683         struct hostapd_iface *iface = hapd->iface;
 684         size_t i;
 685
 686         for (i = 0; i < iface->num_bss; i++) {
 687                 struct hostapd_data *bss = iface->bss[i];
 688                 struct sta_info *sta2;
 689                 /* bss should always be set during operation, but it may be
 690                  * NULL during reconfiguration. Assume the STA is not
 691                  * associated to another BSS in that case to avoid NULL pointer
 692                  * dereferences. */
 693                 if (bss == hapd || bss == NULL)
 694                         continue;
 695                 sta2 = ap_get_sta(bss, sta->addr);
 696                 if (!sta2)
 697                         continue;
 698
 699                 wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
 700                            " association from another BSS %s",
 701                            hapd->conf->iface, MAC2STR(sta2->addr),
 702                            bss->conf->iface);
 703                 ap_sta_disconnect(bss, sta2, sta2->addr,
 704                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 705         }
 706 }
 707
 708
 709 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 710 {
 711         struct hostapd_data *hapd = eloop_ctx;
 712         struct sta_info *sta = timeout_ctx;
 713
 714         wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
 715                    hapd->conf->iface, MAC2STR(sta->addr));
 716         ap_sta_remove(hapd, sta);
 717         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 718 }
 719
 720
 721 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 722                          u16 reason)
 723 {
 724         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 725                    hapd->conf->iface, MAC2STR(sta->addr));
 726         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 727         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 728         ap_sta_set_authorized(hapd, sta, 0);
 729         sta->timeout_next = STA_DEAUTH;
 730         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 731                    "for " MACSTR " (%d seconds - "
 732                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 733                    __func__, MAC2STR(sta->addr),
 734                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 735         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 736         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 737                                ap_handle_timer, hapd, sta);
 738         accounting_sta_stop(hapd, sta);
 739         ieee802_1x_free_station(hapd, sta);
 740
 741         sta->disassoc_reason = reason;
 742         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 743         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 744         eloop_register_timeout(hapd->iface->drv_flags &
 745                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 746                                ap_sta_disassoc_cb_timeout, hapd, sta);
 747 }
 748
 749
 750 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 751 {
 752         struct hostapd_data *hapd = eloop_ctx;
 753         struct sta_info *sta = timeout_ctx;
 754
 755         wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
 756                    hapd->conf->iface, MAC2STR(sta->addr));
 757         ap_sta_remove(hapd, sta);
 758         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 759 }
 760
 761
 762 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 763                            u16 reason)
 764 {
 765         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 766                    hapd->conf->iface, MAC2STR(sta->addr));
 767         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 768         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 769         ap_sta_set_authorized(hapd, sta, 0);
 770         sta->timeout_next = STA_REMOVE;
 771         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 772                    "for " MACSTR " (%d seconds - "
 773                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 774                    __func__, MAC2STR(sta->addr),
 775                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 776         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 777         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 778                                ap_handle_timer, hapd, sta);
 779         accounting_sta_stop(hapd, sta);
 780         ieee802_1x_free_station(hapd, sta);
 781
 782         sta->deauth_reason = reason;
 783         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 784         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 785         eloop_register_timeout(hapd->iface->drv_flags &
 786                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 787                                ap_sta_deauth_cb_timeout, hapd, sta);
 788 }
 789
 790
 791 #ifdef CONFIG_WPS
 792 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 793                       struct sta_info *sta, void *ctx)
 794 {
 795         if (sta && (sta->flags & WLAN_STA_WPS)) {
 796                 ap_sta_deauthenticate(hapd, sta,
 797                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 798                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 799                            __func__, MAC2STR(sta->addr));
 800                 return 1;
 801         }
 802
 803         return 0;
 804 }
 805 #endif /* CONFIG_WPS */
 806
 807
 808 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 809                     struct vlan_description *vlan_desc)
 810 {
 811         struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
 812         int old_vlan_id, vlan_id = 0, ret = 0;
 813
 814         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED) {
 815                 vlan_desc = NULL;
 816         } else if (vlan_desc && vlan_desc->notempty) {
 817                 if (!vlan_compare(vlan_desc, sta->vlan_desc))
 818                         return 0; /* nothing to change */
 819
 820                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 821                         if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
 822                                 break;
 823                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 824                                 wildcard_vlan = vlan;
 825                 }
 826                 if (vlan) {
 827                         vlan_id = vlan->vlan_id;
 828                 } else if (wildcard_vlan) {
 829                         vlan = wildcard_vlan;
 830                         vlan_id = vlan_desc->untagged;
 831                 } else {
 832                         hostapd_logger(hapd, sta->addr,
 833                                        HOSTAPD_MODULE_IEEE80211,
 834                                        HOSTAPD_LEVEL_DEBUG,
 835                                        "missing VLAN and wildcard for vlan=%d",
 836                                        vlan_desc->untagged);
 837                         vlan_id = 0;
 838                         ret = -1;
 839                         goto done;
 840                 }
 841         }
 842
 843         if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
 844                 vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
 845                 if (vlan == NULL) {
 846                         hostapd_logger(hapd, sta->addr,
 847                                        HOSTAPD_MODULE_IEEE80211,
 848                                        HOSTAPD_LEVEL_DEBUG,
 849                                        "could not add dynamic VLAN interface for vlan=%d",
 850                                        vlan_desc->untagged);
 851                         vlan_id = 0;
 852                         ret = -1;
 853                         goto done;
 854                 }
 855
 856                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 857                                HOSTAPD_LEVEL_DEBUG,
 858                                "added new dynamic VLAN interface '%s'",
 859                                vlan->ifname);
 860         } else if (vlan && vlan->dynamic_vlan > 0) {
 861                 vlan->dynamic_vlan++;
 862                 hostapd_logger(hapd, sta->addr,
 863                                HOSTAPD_MODULE_IEEE80211,
 864                                HOSTAPD_LEVEL_DEBUG,
 865                                "updated existing dynamic VLAN interface '%s'",
 866                                vlan->ifname);
 867         }
 868 done:
 869         old_vlan_id = sta->vlan_id;
 870         sta->vlan_id = vlan_id;
 871         sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
 872
 873         if (vlan_id != old_vlan_id && old_vlan_id)
 874                 vlan_remove_dynamic(hapd, old_vlan_id);
 875
 876         return ret;
 877 }
 878
 879
 880 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 881 {
 882 #ifndef CONFIG_NO_VLAN
 883         const char *iface;
 884         struct hostapd_vlan *vlan = NULL;
 885         int ret;
 886         int old_vlanid = sta->vlan_id_bound;
 887
 888         iface = hapd->conf->iface;
 889         if (hapd->conf->ssid.vlan[0])
 890                 iface = hapd->conf->ssid.vlan;
 891
 892         if (sta->vlan_id > 0) {
 893                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 894                         if (vlan->vlan_id == sta->vlan_id)
 895                                 break;
 896                 }
 897                 if (vlan)
 898                         iface = vlan->ifname;
 899         }
 900
 901         /*
 902          * Do not increment ref counters if the VLAN ID remains same, but do
 903          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 904          * have been called before.
 905          */
 906         if (sta->vlan_id == old_vlanid)
 907                 goto skip_counting;
 908
 909         if (sta->vlan_id > 0 && vlan == NULL) {
 910                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 911                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 912                                "binding station to (vlan_id=%d)",
 913                                sta->vlan_id);
 914                 ret = -1;
 915                 goto done;
 916         } else if (vlan && vlan->dynamic_vlan > 0) {
 917                 vlan->dynamic_vlan++;
 918                 hostapd_logger(hapd, sta->addr,
 919                                HOSTAPD_MODULE_IEEE80211,
 920                                HOSTAPD_LEVEL_DEBUG,
 921                                "updated existing dynamic VLAN interface '%s'",
 922                                iface);
 923         }
 924
 925         /* ref counters have been increased, so mark the station */
 926         sta->vlan_id_bound = sta->vlan_id;
 927
 928 skip_counting:
 929         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 930                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 931                        "'%s'", iface);
 932
 933         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 934                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 935
 936         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 937         if (ret < 0) {
 938                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 939                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
 940                                "entry to vlan_id=%d", sta->vlan_id);
 941         }
 942
 943         /* During 1x reauth, if the vlan id changes, then remove the old id. */
 944         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
 945                 vlan_remove_dynamic(hapd, old_vlanid);
 946 done:
 947
 948         return ret;
 949 #else /* CONFIG_NO_VLAN */
 950         return 0;
 951 #endif /* CONFIG_NO_VLAN */
 952 }
 953
 954
 955 #ifdef CONFIG_IEEE80211W
 956
 957 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 958 {
 959         u32 tu;
 960         struct os_reltime now, passed;
 961         os_get_reltime(&now);
 962         os_reltime_sub(&now, &sta->sa_query_start, &passed);
 963         tu = (passed.sec * 1000000 + passed.usec) / 1024;
 964         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
 965                 hostapd_logger(hapd, sta->addr,
 966                                HOSTAPD_MODULE_IEEE80211,
 967                                HOSTAPD_LEVEL_DEBUG,
 968                                "association SA Query timed out");
 969                 sta->sa_query_timed_out = 1;
 970                 os_free(sta->sa_query_trans_id);
 971                 sta->sa_query_trans_id = NULL;
 972                 sta->sa_query_count = 0;
 973                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 974                 return 1;
 975         }
 976
 977         return 0;
 978 }
 979
 980
 981 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
 982 {
 983         struct hostapd_data *hapd = eloop_ctx;
 984         struct sta_info *sta = timeout_ctx;
 985         unsigned int timeout, sec, usec;
 986         u8 *trans_id, *nbuf;
 987
 988         wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
 989                    " (count=%d)",
 990                    hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
 991
 992         if (sta->sa_query_count > 0 &&
 993             ap_check_sa_query_timeout(hapd, sta))
 994                 return;
 995
 996         nbuf = os_realloc_array(sta->sa_query_trans_id,
 997                                 sta->sa_query_count + 1,
 998                                 WLAN_SA_QUERY_TR_ID_LEN);
 999         if (nbuf == NULL)
1000                 return;
1001         if (sta->sa_query_count == 0) {
1002                 /* Starting a new SA Query procedure */
1003                 os_get_reltime(&sta->sa_query_start);
1004         }
1005         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1006         sta->sa_query_trans_id = nbuf;
1007         sta->sa_query_count++;
1008
1009         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1010                 /*
1011                  * We don't really care which ID is used here, so simply
1012                  * hardcode this if the mostly theoretical os_get_random()
1013                  * failure happens.
1014                  */
1015                 trans_id[0] = 0x12;
1016                 trans_id[1] = 0x34;
1017         }
1018
1019         timeout = hapd->conf->assoc_sa_query_retry_timeout;
1020         sec = ((timeout / 1000) * 1024) / 1000;
1021         usec = (timeout % 1000) * 1024;
1022         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1023
1024         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1025                        HOSTAPD_LEVEL_DEBUG,
1026                        "association SA Query attempt %d", sta->sa_query_count);
1027
1028         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1029 }
1030
1031
1032 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1033 {
1034         ap_sa_query_timer(hapd, sta);
1035 }
1036
1037
1038 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1039 {
1040         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1041         os_free(sta->sa_query_trans_id);
1042         sta->sa_query_trans_id = NULL;
1043         sta->sa_query_count = 0;
1044 }
1045
1046 #endif /* CONFIG_IEEE80211W */
1047
1048
1049 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1050                            int authorized)
1051 {
1052         const u8 *dev_addr = NULL;
1053         char buf[100];
1054 #ifdef CONFIG_P2P
1055         u8 addr[ETH_ALEN];
1056         u8 ip_addr_buf[4];
1057 #endif /* CONFIG_P2P */
1058
1059         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1060                 return;
1061
1062         if (authorized)
1063                 sta->flags |= WLAN_STA_AUTHORIZED;
1064         else
1065                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1066
1067 #ifdef CONFIG_P2P
1068         if (hapd->p2p_group == NULL) {
1069                 if (sta->p2p_ie != NULL &&
1070                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1071                         dev_addr = addr;
1072         } else
1073                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1074
1075         if (dev_addr)
1076                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1077                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1078         else
1079 #endif /* CONFIG_P2P */
1080                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1081
1082         if (hapd->sta_authorized_cb)
1083                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1084                                         sta->addr, authorized, dev_addr);
1085
1086         if (authorized) {
1087                 char ip_addr[100];
1088                 ip_addr[0] = '\0';
1089 #ifdef CONFIG_P2P
1090                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1091                         os_snprintf(ip_addr, sizeof(ip_addr),
1092                                     " ip_addr=%u.%u.%u.%u",
1093                                     ip_addr_buf[0], ip_addr_buf[1],
1094                                     ip_addr_buf[2], ip_addr_buf[3]);
1095                 }
1096 #endif /* CONFIG_P2P */
1097
1098                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1099                         buf, ip_addr);
1100
1101                 if (hapd->msg_ctx_parent &&
1102                     hapd->msg_ctx_parent != hapd->msg_ctx)
1103                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1104                                           AP_STA_CONNECTED "%s%s",
1105                                           buf, ip_addr);
1106         } else {
1107                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1108
1109                 if (hapd->msg_ctx_parent &&
1110                     hapd->msg_ctx_parent != hapd->msg_ctx)
1111                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1112                                           AP_STA_DISCONNECTED "%s", buf);
1113         }
1114
1115 #ifdef CONFIG_FST
1116         if (hapd->iface->fst) {
1117                 if (authorized)
1118                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1119                 else
1120                         fst_notify_peer_disconnected(hapd->iface->fst,
1121                                                      sta->addr);
1122         }
1123 #endif /* CONFIG_FST */
1124 }
1125
1126
1127 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1128                        const u8 *addr, u16 reason)
1129 {
1130         if (sta)
1131                 wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1132                            hapd->conf->iface, __func__, MAC2STR(sta->addr),
1133                            reason);
1134         else if (addr)
1135                 wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1136                            hapd->conf->iface, __func__, MAC2STR(addr),
1137                            reason);
1138
1139         if (sta == NULL && addr)
1140                 sta = ap_get_sta(hapd, addr);
1141
1142         if (addr)
1143                 hostapd_drv_sta_deauth(hapd, addr, reason);
1144
1145         if (sta == NULL)
1146                 return;
1147         ap_sta_set_authorized(hapd, sta, 0);
1148         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1149         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1150         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1151         wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1152                    "for " MACSTR " (%d seconds - "
1153                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1154                    hapd->conf->iface, __func__, MAC2STR(sta->addr),
1155                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1156         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1157         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1158                                ap_handle_timer, hapd, sta);
1159         sta->timeout_next = STA_REMOVE;
1160
1161         sta->deauth_reason = reason;
1162         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1163         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1164         eloop_register_timeout(hapd->iface->drv_flags &
1165                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1166                                ap_sta_deauth_cb_timeout, hapd, sta);
1167 }
1168
1169
1170 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1171 {
1172         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1173                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1174                 return;
1175         }
1176         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1177         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1178         ap_sta_deauth_cb_timeout(hapd, sta);
1179 }
1180
1181
1182 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1183 {
1184         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1185                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1186                 return;
1187         }
1188         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1189         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1190         ap_sta_disassoc_cb_timeout(hapd, sta);
1191 }
1192
1193
1194 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1195                                       struct sta_info *sta)
1196 {
1197         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1198                 wpa_printf(MSG_DEBUG,
1199                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1200                            MACSTR,
1201                            hapd->conf->iface, MAC2STR(sta->addr));
1202         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1203                 wpa_printf(MSG_DEBUG,
1204                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1205                            MACSTR,
1206                            hapd->conf->iface, MAC2STR(sta->addr));
1207 }
1208
1209
1210 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1211 {
1212         int res;
1213
1214         buf[0] = '\0';
1215         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1216                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1217                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1218                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1219                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1220                            ""),
1221                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1222                            "[SHORT_PREAMBLE]" : ""),
1223                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1224                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1225                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1226                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1227                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1228                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1229                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1230                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1231                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1232                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1233                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1234                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1235                            "[WNM_SLEEP_MODE]" : ""));
1236         if (os_snprintf_error(buflen, res))
1237                 res = -1;
1238
1239         return res;
1240 }