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                 sta->added_unassoc = 0;
 176         }
 177
 178         ap_sta_hash_del(hapd, sta);
 179         ap_sta_list_del(hapd, sta);
 180
 181         if (sta->aid > 0)
 182                 hapd->sta_aid[(sta->aid - 1) / 32] &=
 183                         ~BIT((sta->aid - 1) % 32);
 184
 185         hapd->num_sta--;
 186         if (sta->nonerp_set) {
 187                 sta->nonerp_set = 0;
 188                 hapd->iface->num_sta_non_erp--;
 189                 if (hapd->iface->num_sta_non_erp == 0)
 190                         set_beacon++;
 191         }
 192
 193         if (sta->no_short_slot_time_set) {
 194                 sta->no_short_slot_time_set = 0;
 195                 hapd->iface->num_sta_no_short_slot_time--;
 196                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 197                     && hapd->iface->num_sta_no_short_slot_time == 0)
 198                         set_beacon++;
 199         }
 200
 201         if (sta->no_short_preamble_set) {
 202                 sta->no_short_preamble_set = 0;
 203                 hapd->iface->num_sta_no_short_preamble--;
 204                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 205                     && hapd->iface->num_sta_no_short_preamble == 0)
 206                         set_beacon++;
 207         }
 208
 209         if (sta->no_ht_gf_set) {
 210                 sta->no_ht_gf_set = 0;
 211                 hapd->iface->num_sta_ht_no_gf--;
 212         }
 213
 214         if (sta->no_ht_set) {
 215                 sta->no_ht_set = 0;
 216                 hapd->iface->num_sta_no_ht--;
 217         }
 218
 219         if (sta->ht_20mhz_set) {
 220                 sta->ht_20mhz_set = 0;
 221                 hapd->iface->num_sta_ht_20mhz--;
 222         }
 223
 224 #ifdef CONFIG_IEEE80211N
 225         ht40_intolerant_remove(hapd->iface, sta);
 226 #endif /* CONFIG_IEEE80211N */
 227
 228 #ifdef CONFIG_P2P
 229         if (sta->no_p2p_set) {
 230                 sta->no_p2p_set = 0;
 231                 hapd->num_sta_no_p2p--;
 232                 if (hapd->num_sta_no_p2p == 0)
 233                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 234         }
 235 #endif /* CONFIG_P2P */
 236
 237 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 238         if (hostapd_ht_operation_update(hapd->iface) > 0)
 239                 set_beacon++;
 240 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 241
 242 #ifdef CONFIG_MESH
 243         if (hapd->mesh_sta_free_cb)
 244                 hapd->mesh_sta_free_cb(hapd, sta);
 245 #endif /* CONFIG_MESH */
 246
 247         if (set_beacon)
 248                 ieee802_11_set_beacons(hapd->iface);
 249
 250         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 251                    __func__, MAC2STR(sta->addr));
 252         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 253         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 254         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 255         ap_sta_clear_disconnect_timeouts(hapd, sta);
 256         sae_clear_retransmit_timer(hapd, sta);
 257
 258         ieee802_1x_free_station(hapd, sta);
 259         wpa_auth_sta_deinit(sta->wpa_sm);
 260         rsn_preauth_free_station(hapd, sta);
 261 #ifndef CONFIG_NO_RADIUS
 262         if (hapd->radius)
 263                 radius_client_flush_auth(hapd->radius, sta->addr);
 264 #endif /* CONFIG_NO_RADIUS */
 265
 266 #ifndef CONFIG_NO_VLAN
 267         /*
 268          * sta->wpa_sm->group needs to be released before so that
 269          * vlan_remove_dynamic() can check that no stations are left on the
 270          * AP_VLAN netdev.
 271          */
 272         if (sta->vlan_id)
 273                 vlan_remove_dynamic(hapd, sta->vlan_id);
 274         if (sta->vlan_id_bound) {
 275                 /*
 276                  * Need to remove the STA entry before potentially removing the
 277                  * VLAN.
 278                  */
 279                 if (hapd->iface->driver_ap_teardown &&
 280                     !(sta->flags & WLAN_STA_PREAUTH)) {
 281                         hostapd_drv_sta_remove(hapd, sta->addr);
 282                         sta->added_unassoc = 0;
 283                 }
 284                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 285         }
 286 #endif /* CONFIG_NO_VLAN */
 287
 288         os_free(sta->challenge);
 289
 290 #ifdef CONFIG_IEEE80211W
 291         os_free(sta->sa_query_trans_id);
 292         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 293 #endif /* CONFIG_IEEE80211W */
 294
 295 #ifdef CONFIG_P2P
 296         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 297 #endif /* CONFIG_P2P */
 298
 299 #ifdef CONFIG_INTERWORKING
 300         if (sta->gas_dialog) {
 301                 int i;
 302                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 303                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 304                 os_free(sta->gas_dialog);
 305         }
 306 #endif /* CONFIG_INTERWORKING */
 307
 308         wpabuf_free(sta->wps_ie);
 309         wpabuf_free(sta->p2p_ie);
 310         wpabuf_free(sta->hs20_ie);
 311 #ifdef CONFIG_FST
 312         wpabuf_free(sta->mb_ies);
 313 #endif /* CONFIG_FST */
 314
 315         os_free(sta->ht_capabilities);
 316         os_free(sta->vht_capabilities);
 317         hostapd_free_psk_list(sta->psk);
 318         os_free(sta->identity);
 319         os_free(sta->radius_cui);
 320         os_free(sta->remediation_url);
 321         wpabuf_free(sta->hs20_deauth_req);
 322         os_free(sta->hs20_session_info_url);
 323
 324 #ifdef CONFIG_SAE
 325         sae_clear_data(sta->sae);
 326         os_free(sta->sae);
 327 #endif /* CONFIG_SAE */
 328
 329         os_free(sta);
 330 }
 331
 332
 333 void hostapd_free_stas(struct hostapd_data *hapd)
 334 {
 335         struct sta_info *sta, *prev;
 336
 337         sta = hapd->sta_list;
 338
 339         while (sta) {
 340                 prev = sta;
 341                 if (sta->flags & WLAN_STA_AUTH) {
 342                         mlme_deauthenticate_indication(
 343                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 344                 }
 345                 sta = sta->next;
 346                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 347                            MAC2STR(prev->addr));
 348                 ap_free_sta(hapd, prev);
 349         }
 350 }
 351
 352
 353 /**
 354  * ap_handle_timer - Per STA timer handler
 355  * @eloop_ctx: struct hostapd_data *
 356  * @timeout_ctx: struct sta_info *
 357  *
 358  * This function is called to check station activity and to remove inactive
 359  * stations.
 360  */
 361 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 362 {
 363         struct hostapd_data *hapd = eloop_ctx;
 364         struct sta_info *sta = timeout_ctx;
 365         unsigned long next_time = 0;
 366         int reason;
 367
 368         wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
 369                    hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
 370                    sta->timeout_next);
 371         if (sta->timeout_next == STA_REMOVE) {
 372                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 373                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 374                                "local deauth request");
 375                 ap_free_sta(hapd, sta);
 376                 return;
 377         }
 378
 379         if ((sta->flags & WLAN_STA_ASSOC) &&
 380             (sta->timeout_next == STA_NULLFUNC ||
 381              sta->timeout_next == STA_DISASSOC)) {
 382                 int inactive_sec;
 383                 /*
 384                  * Add random value to timeout so that we don't end up bouncing
 385                  * all stations at the same time if we have lots of associated
 386                  * stations that are idle (but keep re-associating).
 387                  */
 388                 int fuzz = os_random() % 20;
 389                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 390                 if (inactive_sec == -1) {
 391                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 392                                 "Check inactivity: Could not "
 393                                 "get station info from kernel driver for "
 394                                 MACSTR, MAC2STR(sta->addr));
 395                         /*
 396                          * The driver may not support this functionality.
 397                          * Anyway, try again after the next inactivity timeout,
 398                          * but do not disconnect the station now.
 399                          */
 400                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 401                 } else if (inactive_sec == -ENOENT) {
 402                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 403                                 "Station " MACSTR " has lost its driver entry",
 404                                 MAC2STR(sta->addr));
 405
 406                         /* Avoid sending client probe on removed client */
 407                         sta->timeout_next = STA_DISASSOC;
 408                         goto skip_poll;
 409                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 410                         /* station activity detected; reset timeout state */
 411                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 412                                 "Station " MACSTR " has been active %is ago",
 413                                 MAC2STR(sta->addr), inactive_sec);
 414                         sta->timeout_next = STA_NULLFUNC;
 415                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 416                                 inactive_sec;
 417                 } else {
 418                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 419                                 "Station " MACSTR " has been "
 420                                 "inactive too long: %d sec, max allowed: %d",
 421                                 MAC2STR(sta->addr), inactive_sec,
 422                                 hapd->conf->ap_max_inactivity);
 423
 424                         if (hapd->conf->skip_inactivity_poll)
 425                                 sta->timeout_next = STA_DISASSOC;
 426                 }
 427         }
 428
 429         if ((sta->flags & WLAN_STA_ASSOC) &&
 430             sta->timeout_next == STA_DISASSOC &&
 431             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 432             !hapd->conf->skip_inactivity_poll) {
 433                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 434                         " has ACKed data poll", MAC2STR(sta->addr));
 435                 /* data nullfunc frame poll did not produce TX errors; assume
 436                  * station ACKed it */
 437                 sta->timeout_next = STA_NULLFUNC;
 438                 next_time = hapd->conf->ap_max_inactivity;
 439         }
 440
 441 skip_poll:
 442         if (next_time) {
 443                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 444                            "for " MACSTR " (%lu seconds)",
 445                            __func__, MAC2STR(sta->addr), next_time);
 446                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 447                                        sta);
 448                 return;
 449         }
 450
 451         if (sta->timeout_next == STA_NULLFUNC &&
 452             (sta->flags & WLAN_STA_ASSOC)) {
 453                 wpa_printf(MSG_DEBUG, "  Polling STA");
 454                 sta->flags |= WLAN_STA_PENDING_POLL;
 455                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 456                                         sta->flags & WLAN_STA_WMM);
 457         } else if (sta->timeout_next != STA_REMOVE) {
 458                 int deauth = sta->timeout_next == STA_DEAUTH;
 459
 460                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 461                         "Timeout, sending %s info to STA " MACSTR,
 462                         deauth ? "deauthentication" : "disassociation",
 463                         MAC2STR(sta->addr));
 464
 465                 if (deauth) {
 466                         hostapd_drv_sta_deauth(
 467                                 hapd, sta->addr,
 468                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 469                 } else {
 470                         reason = (sta->timeout_next == STA_DISASSOC) ?
 471                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 472                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 473
 474                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 475                 }
 476         }
 477
 478         switch (sta->timeout_next) {
 479         case STA_NULLFUNC:
 480                 sta->timeout_next = STA_DISASSOC;
 481                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 482                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 483                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 484                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 485                                        hapd, sta);
 486                 break;
 487         case STA_DISASSOC:
 488         case STA_DISASSOC_FROM_CLI:
 489                 ap_sta_set_authorized(hapd, sta, 0);
 490                 sta->flags &= ~WLAN_STA_ASSOC;
 491                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 492                 if (!sta->acct_terminate_cause)
 493                         sta->acct_terminate_cause =
 494                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 495                 accounting_sta_stop(hapd, sta);
 496                 ieee802_1x_free_station(hapd, sta);
 497                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 498                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 499                                "inactivity");
 500                 reason = (sta->timeout_next == STA_DISASSOC) ?
 501                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 502                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 503                 sta->timeout_next = STA_DEAUTH;
 504                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 505                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 506                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 507                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 508                                        hapd, sta);
 509                 mlme_disassociate_indication(hapd, sta, reason);
 510                 break;
 511         case STA_DEAUTH:
 512         case STA_REMOVE:
 513                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 514                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 515                                "inactivity (timer DEAUTH/REMOVE)");
 516                 if (!sta->acct_terminate_cause)
 517                         sta->acct_terminate_cause =
 518                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 519                 mlme_deauthenticate_indication(
 520                         hapd, sta,
 521                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 522                 ap_free_sta(hapd, sta);
 523                 break;
 524         }
 525 }
 526
 527
 528 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 529 {
 530         struct hostapd_data *hapd = eloop_ctx;
 531         struct sta_info *sta = timeout_ctx;
 532
 533         wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
 534                    hapd->conf->iface, MAC2STR(sta->addr));
 535         if (!(sta->flags & WLAN_STA_AUTH)) {
 536                 if (sta->flags & WLAN_STA_GAS) {
 537                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 538                                    "entry " MACSTR, MAC2STR(sta->addr));
 539                         ap_free_sta(hapd, sta);
 540                 }
 541                 return;
 542         }
 543
 544         hostapd_drv_sta_deauth(hapd, sta->addr,
 545                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 546         mlme_deauthenticate_indication(hapd, sta,
 547                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 548         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 549                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 550                        "session timeout");
 551         sta->acct_terminate_cause =
 552                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 553         ap_free_sta(hapd, sta);
 554 }
 555
 556
 557 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 558                               u32 session_timeout)
 559 {
 560         if (eloop_replenish_timeout(session_timeout, 0,
 561                                     ap_handle_session_timer, hapd, sta) == 1) {
 562                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 563                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 564                                "to %d seconds", session_timeout);
 565         }
 566 }
 567
 568
 569 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 570                             u32 session_timeout)
 571 {
 572         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 573                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 574                        "seconds", session_timeout);
 575         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 576         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 577                                hapd, sta);
 578 }
 579
 580
 581 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 582 {
 583         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 584 }
 585
 586
 587 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 588 {
 589 #ifdef CONFIG_WNM
 590         struct hostapd_data *hapd = eloop_ctx;
 591         struct sta_info *sta = timeout_ctx;
 592
 593         wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
 594                    MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
 595         if (sta->hs20_session_info_url == NULL)
 596                 return;
 597
 598         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 599                                        sta->hs20_disassoc_timer);
 600 #endif /* CONFIG_WNM */
 601 }
 602
 603
 604 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 605                                     struct sta_info *sta, int warning_time)
 606 {
 607         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 608         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 609                                hapd, sta);
 610 }
 611
 612
 613 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 614 {
 615         struct sta_info *sta;
 616
 617         sta = ap_get_sta(hapd, addr);
 618         if (sta)
 619                 return sta;
 620
 621         wpa_printf(MSG_DEBUG, "  New STA");
 622         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 623                 /* FIX: might try to remove some old STAs first? */
 624                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 625                            hapd->num_sta, hapd->conf->max_num_sta);
 626                 return NULL;
 627         }
 628
 629         sta = os_zalloc(sizeof(struct sta_info));
 630         if (sta == NULL) {
 631                 wpa_printf(MSG_ERROR, "malloc failed");
 632                 return NULL;
 633         }
 634         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 635         if (accounting_sta_get_id(hapd, sta) < 0) {
 636                 os_free(sta);
 637                 return NULL;
 638         }
 639
 640         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 641                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 642                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 643                            __func__, MAC2STR(addr),
 644                            hapd->conf->ap_max_inactivity);
 645                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 646                                        ap_handle_timer, hapd, sta);
 647         }
 648
 649         /* initialize STA info data */
 650         os_memcpy(sta->addr, addr, ETH_ALEN);
 651         sta->next = hapd->sta_list;
 652         hapd->sta_list = sta;
 653         hapd->num_sta++;
 654         ap_sta_hash_add(hapd, sta);
 655         ap_sta_remove_in_other_bss(hapd, sta);
 656         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 657         dl_list_init(&sta->ip6addr);
 658
 659         return sta;
 660 }
 661
 662
 663 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 664 {
 665         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 666
 667         if (sta->ipaddr)
 668                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 669         ap_sta_ip6addr_del(hapd, sta);
 670
 671         wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
 672                    hapd->conf->iface, MAC2STR(sta->addr));
 673         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 674             sta->flags & WLAN_STA_ASSOC) {
 675                 wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
 676                            " from kernel driver",
 677                            hapd->conf->iface, MAC2STR(sta->addr));
 678                 return -1;
 679         }
 680         sta->added_unassoc = 0;
 681         return 0;
 682 }
 683
 684
 685 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 686                                        struct sta_info *sta)
 687 {
 688         struct hostapd_iface *iface = hapd->iface;
 689         size_t i;
 690
 691         for (i = 0; i < iface->num_bss; i++) {
 692                 struct hostapd_data *bss = iface->bss[i];
 693                 struct sta_info *sta2;
 694                 /* bss should always be set during operation, but it may be
 695                  * NULL during reconfiguration. Assume the STA is not
 696                  * associated to another BSS in that case to avoid NULL pointer
 697                  * dereferences. */
 698                 if (bss == hapd || bss == NULL)
 699                         continue;
 700                 sta2 = ap_get_sta(bss, sta->addr);
 701                 if (!sta2)
 702                         continue;
 703
 704                 wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
 705                            " association from another BSS %s",
 706                            hapd->conf->iface, MAC2STR(sta2->addr),
 707                            bss->conf->iface);
 708                 ap_sta_disconnect(bss, sta2, sta2->addr,
 709                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 710         }
 711 }
 712
 713
 714 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 715 {
 716         struct hostapd_data *hapd = eloop_ctx;
 717         struct sta_info *sta = timeout_ctx;
 718
 719         wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
 720                    hapd->conf->iface, MAC2STR(sta->addr));
 721         ap_sta_remove(hapd, sta);
 722         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 723 }
 724
 725
 726 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 727                          u16 reason)
 728 {
 729         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 730                    hapd->conf->iface, MAC2STR(sta->addr));
 731         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 732         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 733         ap_sta_set_authorized(hapd, sta, 0);
 734         sta->timeout_next = STA_DEAUTH;
 735         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 736                    "for " MACSTR " (%d seconds - "
 737                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 738                    __func__, MAC2STR(sta->addr),
 739                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 740         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 741         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 742                                ap_handle_timer, hapd, sta);
 743         accounting_sta_stop(hapd, sta);
 744         ieee802_1x_free_station(hapd, sta);
 745
 746         sta->disassoc_reason = reason;
 747         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 748         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 749         eloop_register_timeout(hapd->iface->drv_flags &
 750                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 751                                ap_sta_disassoc_cb_timeout, hapd, sta);
 752 }
 753
 754
 755 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 756 {
 757         struct hostapd_data *hapd = eloop_ctx;
 758         struct sta_info *sta = timeout_ctx;
 759
 760         wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
 761                    hapd->conf->iface, MAC2STR(sta->addr));
 762         ap_sta_remove(hapd, sta);
 763         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 764 }
 765
 766
 767 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 768                            u16 reason)
 769 {
 770         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 771                    hapd->conf->iface, MAC2STR(sta->addr));
 772         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 773         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 774         ap_sta_set_authorized(hapd, sta, 0);
 775         sta->timeout_next = STA_REMOVE;
 776         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 777                    "for " MACSTR " (%d seconds - "
 778                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 779                    __func__, MAC2STR(sta->addr),
 780                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 781         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 782         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 783                                ap_handle_timer, hapd, sta);
 784         accounting_sta_stop(hapd, sta);
 785         ieee802_1x_free_station(hapd, sta);
 786
 787         sta->deauth_reason = reason;
 788         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 789         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 790         eloop_register_timeout(hapd->iface->drv_flags &
 791                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 792                                ap_sta_deauth_cb_timeout, hapd, sta);
 793 }
 794
 795
 796 #ifdef CONFIG_WPS
 797 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 798                       struct sta_info *sta, void *ctx)
 799 {
 800         if (sta && (sta->flags & WLAN_STA_WPS)) {
 801                 ap_sta_deauthenticate(hapd, sta,
 802                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 803                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 804                            __func__, MAC2STR(sta->addr));
 805                 return 1;
 806         }
 807
 808         return 0;
 809 }
 810 #endif /* CONFIG_WPS */
 811
 812
 813 static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
 814 {
 815         struct hostapd_vlan *vlan;
 816         int vlan_id = MAX_VLAN_ID + 2;
 817
 818 retry:
 819         for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 820                 if (vlan->vlan_id == vlan_id) {
 821                         vlan_id++;
 822                         goto retry;
 823                 }
 824         }
 825         return vlan_id;
 826 }
 827
 828
 829 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 830                     struct vlan_description *vlan_desc)
 831 {
 832         struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
 833         int old_vlan_id, vlan_id = 0, ret = 0;
 834
 835         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 836                 vlan_desc = NULL;
 837
 838         /* Check if there is something to do */
 839         if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
 840                 /* This sta is lacking its own vif */
 841         } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
 842                    !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
 843                 /* sta->vlan_id needs to be reset */
 844         } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
 845                 return 0; /* nothing to change */
 846         }
 847
 848         /* Now the real VLAN changed or the STA just needs its own vif */
 849         if (hapd->conf->ssid.per_sta_vif) {
 850                 /* Assign a new vif, always */
 851                 /* find a free vlan_id sufficiently big */
 852                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 853                 /* Get wildcard VLAN */
 854                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 855                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 856                                 break;
 857                 }
 858                 if (!vlan) {
 859                         hostapd_logger(hapd, sta->addr,
 860                                        HOSTAPD_MODULE_IEEE80211,
 861                                        HOSTAPD_LEVEL_DEBUG,
 862                                        "per_sta_vif missing wildcard");
 863                         vlan_id = 0;
 864                         ret = -1;
 865                         goto done;
 866                 }
 867         } else if (vlan_desc && vlan_desc->notempty) {
 868                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 869                         if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
 870                                 break;
 871                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 872                                 wildcard_vlan = vlan;
 873                 }
 874                 if (vlan) {
 875                         vlan_id = vlan->vlan_id;
 876                 } else if (wildcard_vlan) {
 877                         vlan = wildcard_vlan;
 878                         vlan_id = vlan_desc->untagged;
 879                         if (vlan_desc->tagged[0]) {
 880                                 /* Tagged VLAN configuration */
 881                                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 882                         }
 883                 } else {
 884                         hostapd_logger(hapd, sta->addr,
 885                                        HOSTAPD_MODULE_IEEE80211,
 886                                        HOSTAPD_LEVEL_DEBUG,
 887                                        "missing vlan and wildcard for vlan=%d%s",
 888                                        vlan_desc->untagged,
 889                                        vlan_desc->tagged[0] ? "+" : "");
 890                         vlan_id = 0;
 891                         ret = -1;
 892                         goto done;
 893                 }
 894         }
 895
 896         if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
 897                 vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
 898                 if (vlan == NULL) {
 899                         hostapd_logger(hapd, sta->addr,
 900                                        HOSTAPD_MODULE_IEEE80211,
 901                                        HOSTAPD_LEVEL_DEBUG,
 902                                        "could not add dynamic VLAN interface for vlan=%d%s",
 903                                        vlan_desc->untagged,
 904                                        vlan_desc->tagged[0] ? "+" : "");
 905                         vlan_id = 0;
 906                         ret = -1;
 907                         goto done;
 908                 }
 909
 910                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 911                                HOSTAPD_LEVEL_DEBUG,
 912                                "added new dynamic VLAN interface '%s'",
 913                                vlan->ifname);
 914         } else if (vlan && vlan->dynamic_vlan > 0) {
 915                 vlan->dynamic_vlan++;
 916                 hostapd_logger(hapd, sta->addr,
 917                                HOSTAPD_MODULE_IEEE80211,
 918                                HOSTAPD_LEVEL_DEBUG,
 919                                "updated existing dynamic VLAN interface '%s'",
 920                                vlan->ifname);
 921         }
 922 done:
 923         old_vlan_id = sta->vlan_id;
 924         sta->vlan_id = vlan_id;
 925         sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
 926
 927         if (vlan_id != old_vlan_id && old_vlan_id)
 928                 vlan_remove_dynamic(hapd, old_vlan_id);
 929
 930         return ret;
 931 }
 932
 933
 934 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 935 {
 936 #ifndef CONFIG_NO_VLAN
 937         const char *iface;
 938         struct hostapd_vlan *vlan = NULL;
 939         int ret;
 940         int old_vlanid = sta->vlan_id_bound;
 941
 942         iface = hapd->conf->iface;
 943         if (hapd->conf->ssid.vlan[0])
 944                 iface = hapd->conf->ssid.vlan;
 945
 946         if (sta->vlan_id > 0) {
 947                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 948                         if (vlan->vlan_id == sta->vlan_id)
 949                                 break;
 950                 }
 951                 if (vlan)
 952                         iface = vlan->ifname;
 953         }
 954
 955         /*
 956          * Do not increment ref counters if the VLAN ID remains same, but do
 957          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 958          * have been called before.
 959          */
 960         if (sta->vlan_id == old_vlanid)
 961                 goto skip_counting;
 962
 963         if (sta->vlan_id > 0 && vlan == NULL) {
 964                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 965                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 966                                "binding station to (vlan_id=%d)",
 967                                sta->vlan_id);
 968                 ret = -1;
 969                 goto done;
 970         } else if (vlan && vlan->dynamic_vlan > 0) {
 971                 vlan->dynamic_vlan++;
 972                 hostapd_logger(hapd, sta->addr,
 973                                HOSTAPD_MODULE_IEEE80211,
 974                                HOSTAPD_LEVEL_DEBUG,
 975                                "updated existing dynamic VLAN interface '%s'",
 976                                iface);
 977         }
 978
 979         /* ref counters have been increased, so mark the station */
 980         sta->vlan_id_bound = sta->vlan_id;
 981
 982 skip_counting:
 983         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 984                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 985                        "'%s'", iface);
 986
 987         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 988                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 989
 990         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 991         if (ret < 0) {
 992                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 993                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
 994                                "entry to vlan_id=%d", sta->vlan_id);
 995         }
 996
 997         /* During 1x reauth, if the vlan id changes, then remove the old id. */
 998         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
 999                 vlan_remove_dynamic(hapd, old_vlanid);
1000 done:
1001
1002         return ret;
1003 #else /* CONFIG_NO_VLAN */
1004         return 0;
1005 #endif /* CONFIG_NO_VLAN */
1006 }
1007
1008
1009 #ifdef CONFIG_IEEE80211W
1010
1011 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
1012 {
1013         u32 tu;
1014         struct os_reltime now, passed;
1015         os_get_reltime(&now);
1016         os_reltime_sub(&now, &sta->sa_query_start, &passed);
1017         tu = (passed.sec * 1000000 + passed.usec) / 1024;
1018         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
1019                 hostapd_logger(hapd, sta->addr,
1020                                HOSTAPD_MODULE_IEEE80211,
1021                                HOSTAPD_LEVEL_DEBUG,
1022                                "association SA Query timed out");
1023                 sta->sa_query_timed_out = 1;
1024                 os_free(sta->sa_query_trans_id);
1025                 sta->sa_query_trans_id = NULL;
1026                 sta->sa_query_count = 0;
1027                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1028                 return 1;
1029         }
1030
1031         return 0;
1032 }
1033
1034
1035 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1036 {
1037         struct hostapd_data *hapd = eloop_ctx;
1038         struct sta_info *sta = timeout_ctx;
1039         unsigned int timeout, sec, usec;
1040         u8 *trans_id, *nbuf;
1041
1042         wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
1043                    " (count=%d)",
1044                    hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
1045
1046         if (sta->sa_query_count > 0 &&
1047             ap_check_sa_query_timeout(hapd, sta))
1048                 return;
1049
1050         nbuf = os_realloc_array(sta->sa_query_trans_id,
1051                                 sta->sa_query_count + 1,
1052                                 WLAN_SA_QUERY_TR_ID_LEN);
1053         if (nbuf == NULL)
1054                 return;
1055         if (sta->sa_query_count == 0) {
1056                 /* Starting a new SA Query procedure */
1057                 os_get_reltime(&sta->sa_query_start);
1058         }
1059         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1060         sta->sa_query_trans_id = nbuf;
1061         sta->sa_query_count++;
1062
1063         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1064                 /*
1065                  * We don't really care which ID is used here, so simply
1066                  * hardcode this if the mostly theoretical os_get_random()
1067                  * failure happens.
1068                  */
1069                 trans_id[0] = 0x12;
1070                 trans_id[1] = 0x34;
1071         }
1072
1073         timeout = hapd->conf->assoc_sa_query_retry_timeout;
1074         sec = ((timeout / 1000) * 1024) / 1000;
1075         usec = (timeout % 1000) * 1024;
1076         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1077
1078         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1079                        HOSTAPD_LEVEL_DEBUG,
1080                        "association SA Query attempt %d", sta->sa_query_count);
1081
1082         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1083 }
1084
1085
1086 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1087 {
1088         ap_sa_query_timer(hapd, sta);
1089 }
1090
1091
1092 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1093 {
1094         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1095         os_free(sta->sa_query_trans_id);
1096         sta->sa_query_trans_id = NULL;
1097         sta->sa_query_count = 0;
1098 }
1099
1100 #endif /* CONFIG_IEEE80211W */
1101
1102
1103 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1104                            int authorized)
1105 {
1106         const u8 *dev_addr = NULL;
1107         char buf[100];
1108 #ifdef CONFIG_P2P
1109         u8 addr[ETH_ALEN];
1110         u8 ip_addr_buf[4];
1111 #endif /* CONFIG_P2P */
1112
1113         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1114                 return;
1115
1116         if (authorized)
1117                 sta->flags |= WLAN_STA_AUTHORIZED;
1118         else
1119                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1120
1121 #ifdef CONFIG_P2P
1122         if (hapd->p2p_group == NULL) {
1123                 if (sta->p2p_ie != NULL &&
1124                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1125                         dev_addr = addr;
1126         } else
1127                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1128
1129         if (dev_addr)
1130                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1131                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1132         else
1133 #endif /* CONFIG_P2P */
1134                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1135
1136         if (hapd->sta_authorized_cb)
1137                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1138                                         sta->addr, authorized, dev_addr);
1139
1140         if (authorized) {
1141                 char ip_addr[100];
1142                 ip_addr[0] = '\0';
1143 #ifdef CONFIG_P2P
1144                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1145                         os_snprintf(ip_addr, sizeof(ip_addr),
1146                                     " ip_addr=%u.%u.%u.%u",
1147                                     ip_addr_buf[0], ip_addr_buf[1],
1148                                     ip_addr_buf[2], ip_addr_buf[3]);
1149                 }
1150 #endif /* CONFIG_P2P */
1151
1152                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1153                         buf, ip_addr);
1154
1155                 if (hapd->msg_ctx_parent &&
1156                     hapd->msg_ctx_parent != hapd->msg_ctx)
1157                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1158                                           AP_STA_CONNECTED "%s%s",
1159                                           buf, ip_addr);
1160         } else {
1161                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1162
1163                 if (hapd->msg_ctx_parent &&
1164                     hapd->msg_ctx_parent != hapd->msg_ctx)
1165                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1166                                           AP_STA_DISCONNECTED "%s", buf);
1167         }
1168
1169 #ifdef CONFIG_FST
1170         if (hapd->iface->fst) {
1171                 if (authorized)
1172                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1173                 else
1174                         fst_notify_peer_disconnected(hapd->iface->fst,
1175                                                      sta->addr);
1176         }
1177 #endif /* CONFIG_FST */
1178 }
1179
1180
1181 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1182                        const u8 *addr, u16 reason)
1183 {
1184         if (sta)
1185                 wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1186                            hapd->conf->iface, __func__, MAC2STR(sta->addr),
1187                            reason);
1188         else if (addr)
1189                 wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1190                            hapd->conf->iface, __func__, MAC2STR(addr),
1191                            reason);
1192
1193         if (sta == NULL && addr)
1194                 sta = ap_get_sta(hapd, addr);
1195
1196         if (addr)
1197                 hostapd_drv_sta_deauth(hapd, addr, reason);
1198
1199         if (sta == NULL)
1200                 return;
1201         ap_sta_set_authorized(hapd, sta, 0);
1202         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1203         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1204         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1205         wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1206                    "for " MACSTR " (%d seconds - "
1207                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1208                    hapd->conf->iface, __func__, MAC2STR(sta->addr),
1209                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1210         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1211         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1212                                ap_handle_timer, hapd, sta);
1213         sta->timeout_next = STA_REMOVE;
1214
1215         sta->deauth_reason = reason;
1216         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1217         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1218         eloop_register_timeout(hapd->iface->drv_flags &
1219                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1220                                ap_sta_deauth_cb_timeout, hapd, sta);
1221 }
1222
1223
1224 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1225 {
1226         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1227                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1228                 return;
1229         }
1230         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1231         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1232         ap_sta_deauth_cb_timeout(hapd, sta);
1233 }
1234
1235
1236 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1237 {
1238         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1239                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1240                 return;
1241         }
1242         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1243         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1244         ap_sta_disassoc_cb_timeout(hapd, sta);
1245 }
1246
1247
1248 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1249                                       struct sta_info *sta)
1250 {
1251         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1252                 wpa_printf(MSG_DEBUG,
1253                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1254                            MACSTR,
1255                            hapd->conf->iface, MAC2STR(sta->addr));
1256         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1257                 wpa_printf(MSG_DEBUG,
1258                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1259                            MACSTR,
1260                            hapd->conf->iface, MAC2STR(sta->addr));
1261 }
1262
1263
1264 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1265 {
1266         int res;
1267
1268         buf[0] = '\0';
1269         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1270                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1271                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1272                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1273                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1274                            ""),
1275                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1276                            "[SHORT_PREAMBLE]" : ""),
1277                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1278                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1279                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1280                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1281                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1282                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1283                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1284                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1285                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1286                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1287                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1288                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1289                            "[WNM_SLEEP_MODE]" : ""));
1290         if (os_snprintf_error(buflen, res))
1291                 res = -1;
1292
1293         return res;
1294 }