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 "mbo_ap.h"
  36 #include "ndisc_snoop.h"
  37 #include "sta_info.h"
  38 #include "vlan.h"
  39
  40 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
  41                                        struct sta_info *sta);
  42 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
  43 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
  44 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  45 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
  46 #ifdef CONFIG_IEEE80211W
  47 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
  48 #endif /* CONFIG_IEEE80211W */
  49 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
  50
  51 int ap_for_each_sta(struct hostapd_data *hapd,
  52                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
  53                               void *ctx),
  54                     void *ctx)
  55 {
  56         struct sta_info *sta;
  57
  58         for (sta = hapd->sta_list; sta; sta = sta->next) {
  59                 if (cb(hapd, sta, ctx))
  60                         return 1;
  61         }
  62
  63         return 0;
  64 }
  65
  66
  67 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
  68 {
  69         struct sta_info *s;
  70
  71         s = hapd->sta_hash[STA_HASH(sta)];
  72         while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
  73                 s = s->hnext;
  74         return s;
  75 }
  76
  77
  78 #ifdef CONFIG_P2P
  79 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
  80 {
  81         struct sta_info *sta;
  82
  83         for (sta = hapd->sta_list; sta; sta = sta->next) {
  84                 const u8 *p2p_dev_addr;
  85
  86                 if (sta->p2p_ie == NULL)
  87                         continue;
  88
  89                 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
  90                 if (p2p_dev_addr == NULL)
  91                         continue;
  92
  93                 if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
  94                         return sta;
  95         }
  96
  97         return NULL;
  98 }
  99 #endif /* CONFIG_P2P */
 100
 101
 102 static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
 103 {
 104         struct sta_info *tmp;
 105
 106         if (hapd->sta_list == sta) {
 107                 hapd->sta_list = sta->next;
 108                 return;
 109         }
 110
 111         tmp = hapd->sta_list;
 112         while (tmp != NULL && tmp->next != sta)
 113                 tmp = tmp->next;
 114         if (tmp == NULL) {
 115                 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
 116                            "list.", MAC2STR(sta->addr));
 117         } else
 118                 tmp->next = sta->next;
 119 }
 120
 121
 122 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
 123 {
 124         sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
 125         hapd->sta_hash[STA_HASH(sta->addr)] = sta;
 126 }
 127
 128
 129 static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
 130 {
 131         struct sta_info *s;
 132
 133         s = hapd->sta_hash[STA_HASH(sta->addr)];
 134         if (s == NULL) return;
 135         if (os_memcmp(s->addr, sta->addr, 6) == 0) {
 136                 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
 137                 return;
 138         }
 139
 140         while (s->hnext != NULL &&
 141                os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
 142                 s = s->hnext;
 143         if (s->hnext != NULL)
 144                 s->hnext = s->hnext->hnext;
 145         else
 146                 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
 147                            " from hash table", MAC2STR(sta->addr));
 148 }
 149
 150
 151 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta)
 152 {
 153         sta_ip6addr_del(hapd, sta);
 154 }
 155
 156
 157 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 158 {
 159         int set_beacon = 0;
 160
 161         accounting_sta_stop(hapd, sta);
 162
 163         /* just in case */
 164         ap_sta_set_authorized(hapd, sta, 0);
 165
 166         if (sta->flags & WLAN_STA_WDS)
 167                 hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
 168
 169         if (sta->ipaddr)
 170                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 171         ap_sta_ip6addr_del(hapd, sta);
 172
 173         if (!hapd->iface->driver_ap_teardown &&
 174             !(sta->flags & WLAN_STA_PREAUTH)) {
 175                 hostapd_drv_sta_remove(hapd, sta->addr);
 176                 sta->added_unassoc = 0;
 177         }
 178
 179         ap_sta_hash_del(hapd, sta);
 180         ap_sta_list_del(hapd, sta);
 181
 182         if (sta->aid > 0)
 183                 hapd->sta_aid[(sta->aid - 1) / 32] &=
 184                         ~BIT((sta->aid - 1) % 32);
 185
 186         hapd->num_sta--;
 187         if (sta->nonerp_set) {
 188                 sta->nonerp_set = 0;
 189                 hapd->iface->num_sta_non_erp--;
 190                 if (hapd->iface->num_sta_non_erp == 0)
 191                         set_beacon++;
 192         }
 193
 194         if (sta->no_short_slot_time_set) {
 195                 sta->no_short_slot_time_set = 0;
 196                 hapd->iface->num_sta_no_short_slot_time--;
 197                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 198                     && hapd->iface->num_sta_no_short_slot_time == 0)
 199                         set_beacon++;
 200         }
 201
 202         if (sta->no_short_preamble_set) {
 203                 sta->no_short_preamble_set = 0;
 204                 hapd->iface->num_sta_no_short_preamble--;
 205                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 206                     && hapd->iface->num_sta_no_short_preamble == 0)
 207                         set_beacon++;
 208         }
 209
 210         if (sta->no_ht_gf_set) {
 211                 sta->no_ht_gf_set = 0;
 212                 hapd->iface->num_sta_ht_no_gf--;
 213         }
 214
 215         if (sta->no_ht_set) {
 216                 sta->no_ht_set = 0;
 217                 hapd->iface->num_sta_no_ht--;
 218         }
 219
 220         if (sta->ht_20mhz_set) {
 221                 sta->ht_20mhz_set = 0;
 222                 hapd->iface->num_sta_ht_20mhz--;
 223         }
 224
 225 #ifdef CONFIG_TAXONOMY
 226         wpabuf_free(sta->probe_ie_taxonomy);
 227         sta->probe_ie_taxonomy = NULL;
 228         wpabuf_free(sta->assoc_ie_taxonomy);
 229         sta->assoc_ie_taxonomy = NULL;
 230 #endif /* CONFIG_TAXONOMY */
 231
 232 #ifdef CONFIG_IEEE80211N
 233         ht40_intolerant_remove(hapd->iface, sta);
 234 #endif /* CONFIG_IEEE80211N */
 235
 236 #ifdef CONFIG_P2P
 237         if (sta->no_p2p_set) {
 238                 sta->no_p2p_set = 0;
 239                 hapd->num_sta_no_p2p--;
 240                 if (hapd->num_sta_no_p2p == 0)
 241                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 242         }
 243 #endif /* CONFIG_P2P */
 244
 245 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 246         if (hostapd_ht_operation_update(hapd->iface) > 0)
 247                 set_beacon++;
 248 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 249
 250 #ifdef CONFIG_MESH
 251         if (hapd->mesh_sta_free_cb)
 252                 hapd->mesh_sta_free_cb(hapd, sta);
 253 #endif /* CONFIG_MESH */
 254
 255         if (set_beacon)
 256                 ieee802_11_set_beacons(hapd->iface);
 257
 258         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 259                    __func__, MAC2STR(sta->addr));
 260         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 261         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 262         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 263         ap_sta_clear_disconnect_timeouts(hapd, sta);
 264         sae_clear_retransmit_timer(hapd, sta);
 265
 266         ieee802_1x_free_station(hapd, sta);
 267         wpa_auth_sta_deinit(sta->wpa_sm);
 268         rsn_preauth_free_station(hapd, sta);
 269 #ifndef CONFIG_NO_RADIUS
 270         if (hapd->radius)
 271                 radius_client_flush_auth(hapd->radius, sta->addr);
 272 #endif /* CONFIG_NO_RADIUS */
 273
 274 #ifndef CONFIG_NO_VLAN
 275         /*
 276          * sta->wpa_sm->group needs to be released before so that
 277          * vlan_remove_dynamic() can check that no stations are left on the
 278          * AP_VLAN netdev.
 279          */
 280         if (sta->vlan_id)
 281                 vlan_remove_dynamic(hapd, sta->vlan_id);
 282         if (sta->vlan_id_bound) {
 283                 /*
 284                  * Need to remove the STA entry before potentially removing the
 285                  * VLAN.
 286                  */
 287                 if (hapd->iface->driver_ap_teardown &&
 288                     !(sta->flags & WLAN_STA_PREAUTH)) {
 289                         hostapd_drv_sta_remove(hapd, sta->addr);
 290                         sta->added_unassoc = 0;
 291                 }
 292                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 293         }
 294 #endif /* CONFIG_NO_VLAN */
 295
 296         os_free(sta->challenge);
 297
 298 #ifdef CONFIG_IEEE80211W
 299         os_free(sta->sa_query_trans_id);
 300         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 301 #endif /* CONFIG_IEEE80211W */
 302
 303 #ifdef CONFIG_P2P
 304         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 305 #endif /* CONFIG_P2P */
 306
 307 #ifdef CONFIG_INTERWORKING
 308         if (sta->gas_dialog) {
 309                 int i;
 310                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 311                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 312                 os_free(sta->gas_dialog);
 313         }
 314 #endif /* CONFIG_INTERWORKING */
 315
 316         wpabuf_free(sta->wps_ie);
 317         wpabuf_free(sta->p2p_ie);
 318         wpabuf_free(sta->hs20_ie);
 319 #ifdef CONFIG_FST
 320         wpabuf_free(sta->mb_ies);
 321 #endif /* CONFIG_FST */
 322
 323         os_free(sta->ht_capabilities);
 324         os_free(sta->vht_capabilities);
 325         hostapd_free_psk_list(sta->psk);
 326         os_free(sta->identity);
 327         os_free(sta->radius_cui);
 328         os_free(sta->remediation_url);
 329         wpabuf_free(sta->hs20_deauth_req);
 330         os_free(sta->hs20_session_info_url);
 331
 332 #ifdef CONFIG_SAE
 333         sae_clear_data(sta->sae);
 334         os_free(sta->sae);
 335 #endif /* CONFIG_SAE */
 336
 337         mbo_ap_sta_free(sta);
 338         os_free(sta->supp_op_classes);
 339
 340         os_free(sta);
 341 }
 342
 343
 344 void hostapd_free_stas(struct hostapd_data *hapd)
 345 {
 346         struct sta_info *sta, *prev;
 347
 348         sta = hapd->sta_list;
 349
 350         while (sta) {
 351                 prev = sta;
 352                 if (sta->flags & WLAN_STA_AUTH) {
 353                         mlme_deauthenticate_indication(
 354                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 355                 }
 356                 sta = sta->next;
 357                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 358                            MAC2STR(prev->addr));
 359                 ap_free_sta(hapd, prev);
 360         }
 361 }
 362
 363
 364 /**
 365  * ap_handle_timer - Per STA timer handler
 366  * @eloop_ctx: struct hostapd_data *
 367  * @timeout_ctx: struct sta_info *
 368  *
 369  * This function is called to check station activity and to remove inactive
 370  * stations.
 371  */
 372 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 373 {
 374         struct hostapd_data *hapd = eloop_ctx;
 375         struct sta_info *sta = timeout_ctx;
 376         unsigned long next_time = 0;
 377         int reason;
 378
 379         wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
 380                    hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
 381                    sta->timeout_next);
 382         if (sta->timeout_next == STA_REMOVE) {
 383                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 384                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 385                                "local deauth request");
 386                 ap_free_sta(hapd, sta);
 387                 return;
 388         }
 389
 390         if ((sta->flags & WLAN_STA_ASSOC) &&
 391             (sta->timeout_next == STA_NULLFUNC ||
 392              sta->timeout_next == STA_DISASSOC)) {
 393                 int inactive_sec;
 394                 /*
 395                  * Add random value to timeout so that we don't end up bouncing
 396                  * all stations at the same time if we have lots of associated
 397                  * stations that are idle (but keep re-associating).
 398                  */
 399                 int fuzz = os_random() % 20;
 400                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 401                 if (inactive_sec == -1) {
 402                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 403                                 "Check inactivity: Could not "
 404                                 "get station info from kernel driver for "
 405                                 MACSTR, MAC2STR(sta->addr));
 406                         /*
 407                          * The driver may not support this functionality.
 408                          * Anyway, try again after the next inactivity timeout,
 409                          * but do not disconnect the station now.
 410                          */
 411                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 412                 } else if (inactive_sec == -ENOENT) {
 413                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 414                                 "Station " MACSTR " has lost its driver entry",
 415                                 MAC2STR(sta->addr));
 416
 417                         /* Avoid sending client probe on removed client */
 418                         sta->timeout_next = STA_DISASSOC;
 419                         goto skip_poll;
 420                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 421                         /* station activity detected; reset timeout state */
 422                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 423                                 "Station " MACSTR " has been active %is ago",
 424                                 MAC2STR(sta->addr), inactive_sec);
 425                         sta->timeout_next = STA_NULLFUNC;
 426                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 427                                 inactive_sec;
 428                 } else {
 429                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 430                                 "Station " MACSTR " has been "
 431                                 "inactive too long: %d sec, max allowed: %d",
 432                                 MAC2STR(sta->addr), inactive_sec,
 433                                 hapd->conf->ap_max_inactivity);
 434
 435                         if (hapd->conf->skip_inactivity_poll)
 436                                 sta->timeout_next = STA_DISASSOC;
 437                 }
 438         }
 439
 440         if ((sta->flags & WLAN_STA_ASSOC) &&
 441             sta->timeout_next == STA_DISASSOC &&
 442             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 443             !hapd->conf->skip_inactivity_poll) {
 444                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 445                         " has ACKed data poll", MAC2STR(sta->addr));
 446                 /* data nullfunc frame poll did not produce TX errors; assume
 447                  * station ACKed it */
 448                 sta->timeout_next = STA_NULLFUNC;
 449                 next_time = hapd->conf->ap_max_inactivity;
 450         }
 451
 452 skip_poll:
 453         if (next_time) {
 454                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 455                            "for " MACSTR " (%lu seconds)",
 456                            __func__, MAC2STR(sta->addr), next_time);
 457                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 458                                        sta);
 459                 return;
 460         }
 461
 462         if (sta->timeout_next == STA_NULLFUNC &&
 463             (sta->flags & WLAN_STA_ASSOC)) {
 464                 wpa_printf(MSG_DEBUG, "  Polling STA");
 465                 sta->flags |= WLAN_STA_PENDING_POLL;
 466                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 467                                         sta->flags & WLAN_STA_WMM);
 468         } else if (sta->timeout_next != STA_REMOVE) {
 469                 int deauth = sta->timeout_next == STA_DEAUTH;
 470
 471                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 472                         "Timeout, sending %s info to STA " MACSTR,
 473                         deauth ? "deauthentication" : "disassociation",
 474                         MAC2STR(sta->addr));
 475
 476                 if (deauth) {
 477                         hostapd_drv_sta_deauth(
 478                                 hapd, sta->addr,
 479                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 480                 } else {
 481                         reason = (sta->timeout_next == STA_DISASSOC) ?
 482                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 483                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 484
 485                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 486                 }
 487         }
 488
 489         switch (sta->timeout_next) {
 490         case STA_NULLFUNC:
 491                 sta->timeout_next = STA_DISASSOC;
 492                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 493                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 494                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 495                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 496                                        hapd, sta);
 497                 break;
 498         case STA_DISASSOC:
 499         case STA_DISASSOC_FROM_CLI:
 500                 ap_sta_set_authorized(hapd, sta, 0);
 501                 sta->flags &= ~WLAN_STA_ASSOC;
 502                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 503                 if (!sta->acct_terminate_cause)
 504                         sta->acct_terminate_cause =
 505                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 506                 accounting_sta_stop(hapd, sta);
 507                 ieee802_1x_free_station(hapd, sta);
 508                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 509                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 510                                "inactivity");
 511                 reason = (sta->timeout_next == STA_DISASSOC) ?
 512                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 513                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 514                 sta->timeout_next = STA_DEAUTH;
 515                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 516                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 517                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 518                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 519                                        hapd, sta);
 520                 mlme_disassociate_indication(hapd, sta, reason);
 521                 break;
 522         case STA_DEAUTH:
 523         case STA_REMOVE:
 524                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 525                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 526                                "inactivity (timer DEAUTH/REMOVE)");
 527                 if (!sta->acct_terminate_cause)
 528                         sta->acct_terminate_cause =
 529                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 530                 mlme_deauthenticate_indication(
 531                         hapd, sta,
 532                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 533                 ap_free_sta(hapd, sta);
 534                 break;
 535         }
 536 }
 537
 538
 539 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 540 {
 541         struct hostapd_data *hapd = eloop_ctx;
 542         struct sta_info *sta = timeout_ctx;
 543
 544         wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
 545                    hapd->conf->iface, MAC2STR(sta->addr));
 546         if (!(sta->flags & WLAN_STA_AUTH)) {
 547                 if (sta->flags & WLAN_STA_GAS) {
 548                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 549                                    "entry " MACSTR, MAC2STR(sta->addr));
 550                         ap_free_sta(hapd, sta);
 551                 }
 552                 return;
 553         }
 554
 555         hostapd_drv_sta_deauth(hapd, sta->addr,
 556                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 557         mlme_deauthenticate_indication(hapd, sta,
 558                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 559         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 560                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 561                        "session timeout");
 562         sta->acct_terminate_cause =
 563                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 564         ap_free_sta(hapd, sta);
 565 }
 566
 567
 568 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 569                               u32 session_timeout)
 570 {
 571         if (eloop_replenish_timeout(session_timeout, 0,
 572                                     ap_handle_session_timer, hapd, sta) == 1) {
 573                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 574                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 575                                "to %d seconds", session_timeout);
 576         }
 577 }
 578
 579
 580 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 581                             u32 session_timeout)
 582 {
 583         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 584                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 585                        "seconds", session_timeout);
 586         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 587         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 588                                hapd, sta);
 589 }
 590
 591
 592 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 593 {
 594         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 595 }
 596
 597
 598 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 599 {
 600 #ifdef CONFIG_WNM
 601         struct hostapd_data *hapd = eloop_ctx;
 602         struct sta_info *sta = timeout_ctx;
 603
 604         wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
 605                    MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
 606         if (sta->hs20_session_info_url == NULL)
 607                 return;
 608
 609         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 610                                        sta->hs20_disassoc_timer);
 611 #endif /* CONFIG_WNM */
 612 }
 613
 614
 615 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 616                                     struct sta_info *sta, int warning_time)
 617 {
 618         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 619         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 620                                hapd, sta);
 621 }
 622
 623
 624 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 625 {
 626         struct sta_info *sta;
 627
 628         sta = ap_get_sta(hapd, addr);
 629         if (sta)
 630                 return sta;
 631
 632         wpa_printf(MSG_DEBUG, "  New STA");
 633         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 634                 /* FIX: might try to remove some old STAs first? */
 635                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 636                            hapd->num_sta, hapd->conf->max_num_sta);
 637                 return NULL;
 638         }
 639
 640         sta = os_zalloc(sizeof(struct sta_info));
 641         if (sta == NULL) {
 642                 wpa_printf(MSG_ERROR, "malloc failed");
 643                 return NULL;
 644         }
 645         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 646         if (accounting_sta_get_id(hapd, sta) < 0) {
 647                 os_free(sta);
 648                 return NULL;
 649         }
 650
 651         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 652                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 653                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 654                            __func__, MAC2STR(addr),
 655                            hapd->conf->ap_max_inactivity);
 656                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 657                                        ap_handle_timer, hapd, sta);
 658         }
 659
 660         /* initialize STA info data */
 661         os_memcpy(sta->addr, addr, ETH_ALEN);
 662         sta->next = hapd->sta_list;
 663         hapd->sta_list = sta;
 664         hapd->num_sta++;
 665         ap_sta_hash_add(hapd, sta);
 666         ap_sta_remove_in_other_bss(hapd, sta);
 667         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 668         dl_list_init(&sta->ip6addr);
 669
 670         return sta;
 671 }
 672
 673
 674 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 675 {
 676         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 677
 678         if (sta->ipaddr)
 679                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 680         ap_sta_ip6addr_del(hapd, sta);
 681
 682         wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
 683                    hapd->conf->iface, MAC2STR(sta->addr));
 684         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 685             sta->flags & WLAN_STA_ASSOC) {
 686                 wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
 687                            " from kernel driver",
 688                            hapd->conf->iface, MAC2STR(sta->addr));
 689                 return -1;
 690         }
 691         sta->added_unassoc = 0;
 692         return 0;
 693 }
 694
 695
 696 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 697                                        struct sta_info *sta)
 698 {
 699         struct hostapd_iface *iface = hapd->iface;
 700         size_t i;
 701
 702         for (i = 0; i < iface->num_bss; i++) {
 703                 struct hostapd_data *bss = iface->bss[i];
 704                 struct sta_info *sta2;
 705                 /* bss should always be set during operation, but it may be
 706                  * NULL during reconfiguration. Assume the STA is not
 707                  * associated to another BSS in that case to avoid NULL pointer
 708                  * dereferences. */
 709                 if (bss == hapd || bss == NULL)
 710                         continue;
 711                 sta2 = ap_get_sta(bss, sta->addr);
 712                 if (!sta2)
 713                         continue;
 714
 715                 wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
 716                            " association from another BSS %s",
 717                            hapd->conf->iface, MAC2STR(sta2->addr),
 718                            bss->conf->iface);
 719                 ap_sta_disconnect(bss, sta2, sta2->addr,
 720                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 721         }
 722 }
 723
 724
 725 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 726 {
 727         struct hostapd_data *hapd = eloop_ctx;
 728         struct sta_info *sta = timeout_ctx;
 729
 730         wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
 731                    hapd->conf->iface, MAC2STR(sta->addr));
 732         ap_sta_remove(hapd, sta);
 733         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 734 }
 735
 736
 737 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 738                          u16 reason)
 739 {
 740         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 741                    hapd->conf->iface, MAC2STR(sta->addr));
 742         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 743         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 744         ap_sta_set_authorized(hapd, sta, 0);
 745         sta->timeout_next = STA_DEAUTH;
 746         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 747                    "for " MACSTR " (%d seconds - "
 748                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 749                    __func__, MAC2STR(sta->addr),
 750                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 751         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 752         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 753                                ap_handle_timer, hapd, sta);
 754         accounting_sta_stop(hapd, sta);
 755         ieee802_1x_free_station(hapd, sta);
 756
 757         sta->disassoc_reason = reason;
 758         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 759         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 760         eloop_register_timeout(hapd->iface->drv_flags &
 761                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 762                                ap_sta_disassoc_cb_timeout, hapd, sta);
 763 }
 764
 765
 766 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 767 {
 768         struct hostapd_data *hapd = eloop_ctx;
 769         struct sta_info *sta = timeout_ctx;
 770
 771         wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
 772                    hapd->conf->iface, MAC2STR(sta->addr));
 773         ap_sta_remove(hapd, sta);
 774         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 775 }
 776
 777
 778 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 779                            u16 reason)
 780 {
 781         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 782                    hapd->conf->iface, MAC2STR(sta->addr));
 783         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 784         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 785         ap_sta_set_authorized(hapd, sta, 0);
 786         sta->timeout_next = STA_REMOVE;
 787         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 788                    "for " MACSTR " (%d seconds - "
 789                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 790                    __func__, MAC2STR(sta->addr),
 791                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 792         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 793         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 794                                ap_handle_timer, hapd, sta);
 795         accounting_sta_stop(hapd, sta);
 796         ieee802_1x_free_station(hapd, sta);
 797
 798         sta->deauth_reason = reason;
 799         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 800         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 801         eloop_register_timeout(hapd->iface->drv_flags &
 802                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 803                                ap_sta_deauth_cb_timeout, hapd, sta);
 804 }
 805
 806
 807 #ifdef CONFIG_WPS
 808 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 809                       struct sta_info *sta, void *ctx)
 810 {
 811         if (sta && (sta->flags & WLAN_STA_WPS)) {
 812                 ap_sta_deauthenticate(hapd, sta,
 813                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 814                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 815                            __func__, MAC2STR(sta->addr));
 816                 return 1;
 817         }
 818
 819         return 0;
 820 }
 821 #endif /* CONFIG_WPS */
 822
 823
 824 static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
 825 {
 826         struct hostapd_vlan *vlan;
 827         int vlan_id = MAX_VLAN_ID + 2;
 828
 829 retry:
 830         for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 831                 if (vlan->vlan_id == vlan_id) {
 832                         vlan_id++;
 833                         goto retry;
 834                 }
 835         }
 836         return vlan_id;
 837 }
 838
 839
 840 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 841                     struct vlan_description *vlan_desc)
 842 {
 843         struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
 844         int old_vlan_id, vlan_id = 0, ret = 0;
 845
 846         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 847                 vlan_desc = NULL;
 848
 849         /* Check if there is something to do */
 850         if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
 851                 /* This sta is lacking its own vif */
 852         } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
 853                    !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
 854                 /* sta->vlan_id needs to be reset */
 855         } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
 856                 return 0; /* nothing to change */
 857         }
 858
 859         /* Now the real VLAN changed or the STA just needs its own vif */
 860         if (hapd->conf->ssid.per_sta_vif) {
 861                 /* Assign a new vif, always */
 862                 /* find a free vlan_id sufficiently big */
 863                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 864                 /* Get wildcard VLAN */
 865                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 866                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 867                                 break;
 868                 }
 869                 if (!vlan) {
 870                         hostapd_logger(hapd, sta->addr,
 871                                        HOSTAPD_MODULE_IEEE80211,
 872                                        HOSTAPD_LEVEL_DEBUG,
 873                                        "per_sta_vif missing wildcard");
 874                         vlan_id = 0;
 875                         ret = -1;
 876                         goto done;
 877                 }
 878         } else if (vlan_desc && vlan_desc->notempty) {
 879                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 880                         if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
 881                                 break;
 882                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 883                                 wildcard_vlan = vlan;
 884                 }
 885                 if (vlan) {
 886                         vlan_id = vlan->vlan_id;
 887                 } else if (wildcard_vlan) {
 888                         vlan = wildcard_vlan;
 889                         vlan_id = vlan_desc->untagged;
 890                         if (vlan_desc->tagged[0]) {
 891                                 /* Tagged VLAN configuration */
 892                                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 893                         }
 894                 } else {
 895                         hostapd_logger(hapd, sta->addr,
 896                                        HOSTAPD_MODULE_IEEE80211,
 897                                        HOSTAPD_LEVEL_DEBUG,
 898                                        "missing vlan and wildcard for vlan=%d%s",
 899                                        vlan_desc->untagged,
 900                                        vlan_desc->tagged[0] ? "+" : "");
 901                         vlan_id = 0;
 902                         ret = -1;
 903                         goto done;
 904                 }
 905         }
 906
 907         if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
 908                 vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
 909                 if (vlan == NULL) {
 910                         hostapd_logger(hapd, sta->addr,
 911                                        HOSTAPD_MODULE_IEEE80211,
 912                                        HOSTAPD_LEVEL_DEBUG,
 913                                        "could not add dynamic VLAN interface for vlan=%d%s",
 914                                        vlan_desc ? vlan_desc->untagged : -1,
 915                                        (vlan_desc && vlan_desc->tagged[0]) ?
 916                                        "+" : "");
 917                         vlan_id = 0;
 918                         ret = -1;
 919                         goto done;
 920                 }
 921
 922                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 923                                HOSTAPD_LEVEL_DEBUG,
 924                                "added new dynamic VLAN interface '%s'",
 925                                vlan->ifname);
 926         } else if (vlan && vlan->dynamic_vlan > 0) {
 927                 vlan->dynamic_vlan++;
 928                 hostapd_logger(hapd, sta->addr,
 929                                HOSTAPD_MODULE_IEEE80211,
 930                                HOSTAPD_LEVEL_DEBUG,
 931                                "updated existing dynamic VLAN interface '%s'",
 932                                vlan->ifname);
 933         }
 934 done:
 935         old_vlan_id = sta->vlan_id;
 936         sta->vlan_id = vlan_id;
 937         sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
 938
 939         if (vlan_id != old_vlan_id && old_vlan_id)
 940                 vlan_remove_dynamic(hapd, old_vlan_id);
 941
 942         return ret;
 943 }
 944
 945
 946 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 947 {
 948 #ifndef CONFIG_NO_VLAN
 949         const char *iface;
 950         struct hostapd_vlan *vlan = NULL;
 951         int ret;
 952         int old_vlanid = sta->vlan_id_bound;
 953
 954         iface = hapd->conf->iface;
 955         if (hapd->conf->ssid.vlan[0])
 956                 iface = hapd->conf->ssid.vlan;
 957
 958         if (sta->vlan_id > 0) {
 959                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 960                         if (vlan->vlan_id == sta->vlan_id)
 961                                 break;
 962                 }
 963                 if (vlan)
 964                         iface = vlan->ifname;
 965         }
 966
 967         /*
 968          * Do not increment ref counters if the VLAN ID remains same, but do
 969          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 970          * have been called before.
 971          */
 972         if (sta->vlan_id == old_vlanid)
 973                 goto skip_counting;
 974
 975         if (sta->vlan_id > 0 && vlan == NULL) {
 976                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 977                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 978                                "binding station to (vlan_id=%d)",
 979                                sta->vlan_id);
 980                 ret = -1;
 981                 goto done;
 982         } else if (vlan && vlan->dynamic_vlan > 0) {
 983                 vlan->dynamic_vlan++;
 984                 hostapd_logger(hapd, sta->addr,
 985                                HOSTAPD_MODULE_IEEE80211,
 986                                HOSTAPD_LEVEL_DEBUG,
 987                                "updated existing dynamic VLAN interface '%s'",
 988                                iface);
 989         }
 990
 991         /* ref counters have been increased, so mark the station */
 992         sta->vlan_id_bound = sta->vlan_id;
 993
 994 skip_counting:
 995         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 996                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 997                        "'%s'", iface);
 998
 999         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
1000                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
1001
1002         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
1003         if (ret < 0) {
1004                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1005                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
1006                                "entry to vlan_id=%d", sta->vlan_id);
1007         }
1008
1009         /* During 1x reauth, if the vlan id changes, then remove the old id. */
1010         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
1011                 vlan_remove_dynamic(hapd, old_vlanid);
1012 done:
1013
1014         return ret;
1015 #else /* CONFIG_NO_VLAN */
1016         return 0;
1017 #endif /* CONFIG_NO_VLAN */
1018 }
1019
1020
1021 #ifdef CONFIG_IEEE80211W
1022
1023 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
1024 {
1025         u32 tu;
1026         struct os_reltime now, passed;
1027         os_get_reltime(&now);
1028         os_reltime_sub(&now, &sta->sa_query_start, &passed);
1029         tu = (passed.sec * 1000000 + passed.usec) / 1024;
1030         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
1031                 hostapd_logger(hapd, sta->addr,
1032                                HOSTAPD_MODULE_IEEE80211,
1033                                HOSTAPD_LEVEL_DEBUG,
1034                                "association SA Query timed out");
1035                 sta->sa_query_timed_out = 1;
1036                 os_free(sta->sa_query_trans_id);
1037                 sta->sa_query_trans_id = NULL;
1038                 sta->sa_query_count = 0;
1039                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1040                 return 1;
1041         }
1042
1043         return 0;
1044 }
1045
1046
1047 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1048 {
1049         struct hostapd_data *hapd = eloop_ctx;
1050         struct sta_info *sta = timeout_ctx;
1051         unsigned int timeout, sec, usec;
1052         u8 *trans_id, *nbuf;
1053
1054         wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
1055                    " (count=%d)",
1056                    hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
1057
1058         if (sta->sa_query_count > 0 &&
1059             ap_check_sa_query_timeout(hapd, sta))
1060                 return;
1061
1062         nbuf = os_realloc_array(sta->sa_query_trans_id,
1063                                 sta->sa_query_count + 1,
1064                                 WLAN_SA_QUERY_TR_ID_LEN);
1065         if (nbuf == NULL)
1066                 return;
1067         if (sta->sa_query_count == 0) {
1068                 /* Starting a new SA Query procedure */
1069                 os_get_reltime(&sta->sa_query_start);
1070         }
1071         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1072         sta->sa_query_trans_id = nbuf;
1073         sta->sa_query_count++;
1074
1075         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1076                 /*
1077                  * We don't really care which ID is used here, so simply
1078                  * hardcode this if the mostly theoretical os_get_random()
1079                  * failure happens.
1080                  */
1081                 trans_id[0] = 0x12;
1082                 trans_id[1] = 0x34;
1083         }
1084
1085         timeout = hapd->conf->assoc_sa_query_retry_timeout;
1086         sec = ((timeout / 1000) * 1024) / 1000;
1087         usec = (timeout % 1000) * 1024;
1088         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1089
1090         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1091                        HOSTAPD_LEVEL_DEBUG,
1092                        "association SA Query attempt %d", sta->sa_query_count);
1093
1094         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1095 }
1096
1097
1098 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1099 {
1100         ap_sa_query_timer(hapd, sta);
1101 }
1102
1103
1104 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1105 {
1106         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1107         os_free(sta->sa_query_trans_id);
1108         sta->sa_query_trans_id = NULL;
1109         sta->sa_query_count = 0;
1110 }
1111
1112 #endif /* CONFIG_IEEE80211W */
1113
1114
1115 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1116                            int authorized)
1117 {
1118         const u8 *dev_addr = NULL;
1119         char buf[100];
1120 #ifdef CONFIG_P2P
1121         u8 addr[ETH_ALEN];
1122         u8 ip_addr_buf[4];
1123 #endif /* CONFIG_P2P */
1124
1125         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1126                 return;
1127
1128         if (authorized)
1129                 sta->flags |= WLAN_STA_AUTHORIZED;
1130         else
1131                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1132
1133 #ifdef CONFIG_P2P
1134         if (hapd->p2p_group == NULL) {
1135                 if (sta->p2p_ie != NULL &&
1136                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1137                         dev_addr = addr;
1138         } else
1139                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1140
1141         if (dev_addr)
1142                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1143                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1144         else
1145 #endif /* CONFIG_P2P */
1146                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1147
1148         if (hapd->sta_authorized_cb)
1149                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1150                                         sta->addr, authorized, dev_addr);
1151
1152         if (authorized) {
1153                 char ip_addr[100];
1154                 ip_addr[0] = '\0';
1155 #ifdef CONFIG_P2P
1156                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1157                         os_snprintf(ip_addr, sizeof(ip_addr),
1158                                     " ip_addr=%u.%u.%u.%u",
1159                                     ip_addr_buf[0], ip_addr_buf[1],
1160                                     ip_addr_buf[2], ip_addr_buf[3]);
1161                 }
1162 #endif /* CONFIG_P2P */
1163
1164                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1165                         buf, ip_addr);
1166
1167                 if (hapd->msg_ctx_parent &&
1168                     hapd->msg_ctx_parent != hapd->msg_ctx)
1169                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1170                                           AP_STA_CONNECTED "%s%s",
1171                                           buf, ip_addr);
1172         } else {
1173                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1174
1175                 if (hapd->msg_ctx_parent &&
1176                     hapd->msg_ctx_parent != hapd->msg_ctx)
1177                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1178                                           AP_STA_DISCONNECTED "%s", buf);
1179         }
1180
1181 #ifdef CONFIG_FST
1182         if (hapd->iface->fst) {
1183                 if (authorized)
1184                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1185                 else
1186                         fst_notify_peer_disconnected(hapd->iface->fst,
1187                                                      sta->addr);
1188         }
1189 #endif /* CONFIG_FST */
1190 }
1191
1192
1193 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1194                        const u8 *addr, u16 reason)
1195 {
1196         if (sta)
1197                 wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1198                            hapd->conf->iface, __func__, MAC2STR(sta->addr),
1199                            reason);
1200         else if (addr)
1201                 wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1202                            hapd->conf->iface, __func__, MAC2STR(addr),
1203                            reason);
1204
1205         if (sta == NULL && addr)
1206                 sta = ap_get_sta(hapd, addr);
1207
1208         if (addr)
1209                 hostapd_drv_sta_deauth(hapd, addr, reason);
1210
1211         if (sta == NULL)
1212                 return;
1213         ap_sta_set_authorized(hapd, sta, 0);
1214         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1215         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1216         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1217         wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1218                    "for " MACSTR " (%d seconds - "
1219                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1220                    hapd->conf->iface, __func__, MAC2STR(sta->addr),
1221                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1222         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1223         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1224                                ap_handle_timer, hapd, sta);
1225         sta->timeout_next = STA_REMOVE;
1226
1227         sta->deauth_reason = reason;
1228         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1229         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1230         eloop_register_timeout(hapd->iface->drv_flags &
1231                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1232                                ap_sta_deauth_cb_timeout, hapd, sta);
1233 }
1234
1235
1236 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1237 {
1238         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1239                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1240                 return;
1241         }
1242         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1243         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1244         ap_sta_deauth_cb_timeout(hapd, sta);
1245 }
1246
1247
1248 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1249 {
1250         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1251                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1252                 return;
1253         }
1254         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1255         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1256         ap_sta_disassoc_cb_timeout(hapd, sta);
1257 }
1258
1259
1260 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1261                                       struct sta_info *sta)
1262 {
1263         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1264                 wpa_printf(MSG_DEBUG,
1265                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1266                            MACSTR,
1267                            hapd->conf->iface, MAC2STR(sta->addr));
1268         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1269                 wpa_printf(MSG_DEBUG,
1270                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1271                            MACSTR,
1272                            hapd->conf->iface, MAC2STR(sta->addr));
1273 }
1274
1275
1276 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1277 {
1278         int res;
1279
1280         buf[0] = '\0';
1281         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1282                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1283                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1284                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1285                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1286                            ""),
1287                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1288                            "[SHORT_PREAMBLE]" : ""),
1289                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1290                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1291                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1292                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1293                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1294                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1295                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1296                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1297                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1298                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1299                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1300                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1301                            "[WNM_SLEEP_MODE]" : ""));
1302         if (os_snprintf_error(buflen, res))
1303                 res = -1;
1304
1305         return res;
1306 }