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 #ifdef CONFIG_TAXONOMY
 671         sta_track_claim_taxonomy_info(hapd->iface, addr,
 672                                       &sta->probe_ie_taxonomy);
 673 #endif /* CONFIG_TAXONOMY */
 674
 675         return sta;
 676 }
 677
 678
 679 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 680 {
 681         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 682
 683         if (sta->ipaddr)
 684                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 685         ap_sta_ip6addr_del(hapd, sta);
 686
 687         wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
 688                    hapd->conf->iface, MAC2STR(sta->addr));
 689         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 690             sta->flags & WLAN_STA_ASSOC) {
 691                 wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
 692                            " from kernel driver",
 693                            hapd->conf->iface, MAC2STR(sta->addr));
 694                 return -1;
 695         }
 696         sta->added_unassoc = 0;
 697         return 0;
 698 }
 699
 700
 701 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 702                                        struct sta_info *sta)
 703 {
 704         struct hostapd_iface *iface = hapd->iface;
 705         size_t i;
 706
 707         for (i = 0; i < iface->num_bss; i++) {
 708                 struct hostapd_data *bss = iface->bss[i];
 709                 struct sta_info *sta2;
 710                 /* bss should always be set during operation, but it may be
 711                  * NULL during reconfiguration. Assume the STA is not
 712                  * associated to another BSS in that case to avoid NULL pointer
 713                  * dereferences. */
 714                 if (bss == hapd || bss == NULL)
 715                         continue;
 716                 sta2 = ap_get_sta(bss, sta->addr);
 717                 if (!sta2)
 718                         continue;
 719
 720                 wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
 721                            " association from another BSS %s",
 722                            hapd->conf->iface, MAC2STR(sta2->addr),
 723                            bss->conf->iface);
 724                 ap_sta_disconnect(bss, sta2, sta2->addr,
 725                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 726         }
 727 }
 728
 729
 730 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 731 {
 732         struct hostapd_data *hapd = eloop_ctx;
 733         struct sta_info *sta = timeout_ctx;
 734
 735         wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
 736                    hapd->conf->iface, MAC2STR(sta->addr));
 737         ap_sta_remove(hapd, sta);
 738         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 739 }
 740
 741
 742 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 743                          u16 reason)
 744 {
 745         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 746                    hapd->conf->iface, MAC2STR(sta->addr));
 747         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 748         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 749         ap_sta_set_authorized(hapd, sta, 0);
 750         sta->timeout_next = STA_DEAUTH;
 751         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 752                    "for " MACSTR " (%d seconds - "
 753                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 754                    __func__, MAC2STR(sta->addr),
 755                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 756         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 757         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 758                                ap_handle_timer, hapd, sta);
 759         accounting_sta_stop(hapd, sta);
 760         ieee802_1x_free_station(hapd, sta);
 761
 762         sta->disassoc_reason = reason;
 763         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 764         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 765         eloop_register_timeout(hapd->iface->drv_flags &
 766                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 767                                ap_sta_disassoc_cb_timeout, hapd, sta);
 768 }
 769
 770
 771 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 772 {
 773         struct hostapd_data *hapd = eloop_ctx;
 774         struct sta_info *sta = timeout_ctx;
 775
 776         wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
 777                    hapd->conf->iface, MAC2STR(sta->addr));
 778         ap_sta_remove(hapd, sta);
 779         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 780 }
 781
 782
 783 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 784                            u16 reason)
 785 {
 786         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 787                    hapd->conf->iface, MAC2STR(sta->addr));
 788         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 789         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 790         ap_sta_set_authorized(hapd, sta, 0);
 791         sta->timeout_next = STA_REMOVE;
 792         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 793                    "for " MACSTR " (%d seconds - "
 794                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 795                    __func__, MAC2STR(sta->addr),
 796                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 797         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 798         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 799                                ap_handle_timer, hapd, sta);
 800         accounting_sta_stop(hapd, sta);
 801         ieee802_1x_free_station(hapd, sta);
 802
 803         sta->deauth_reason = reason;
 804         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 805         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 806         eloop_register_timeout(hapd->iface->drv_flags &
 807                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 808                                ap_sta_deauth_cb_timeout, hapd, sta);
 809 }
 810
 811
 812 #ifdef CONFIG_WPS
 813 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 814                       struct sta_info *sta, void *ctx)
 815 {
 816         if (sta && (sta->flags & WLAN_STA_WPS)) {
 817                 ap_sta_deauthenticate(hapd, sta,
 818                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 819                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 820                            __func__, MAC2STR(sta->addr));
 821                 return 1;
 822         }
 823
 824         return 0;
 825 }
 826 #endif /* CONFIG_WPS */
 827
 828
 829 static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
 830 {
 831         struct hostapd_vlan *vlan;
 832         int vlan_id = MAX_VLAN_ID + 2;
 833
 834 retry:
 835         for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 836                 if (vlan->vlan_id == vlan_id) {
 837                         vlan_id++;
 838                         goto retry;
 839                 }
 840         }
 841         return vlan_id;
 842 }
 843
 844
 845 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 846                     struct vlan_description *vlan_desc)
 847 {
 848         struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
 849         int old_vlan_id, vlan_id = 0, ret = 0;
 850
 851         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 852                 vlan_desc = NULL;
 853
 854         /* Check if there is something to do */
 855         if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
 856                 /* This sta is lacking its own vif */
 857         } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
 858                    !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
 859                 /* sta->vlan_id needs to be reset */
 860         } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
 861                 return 0; /* nothing to change */
 862         }
 863
 864         /* Now the real VLAN changed or the STA just needs its own vif */
 865         if (hapd->conf->ssid.per_sta_vif) {
 866                 /* Assign a new vif, always */
 867                 /* find a free vlan_id sufficiently big */
 868                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 869                 /* Get wildcard VLAN */
 870                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 871                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 872                                 break;
 873                 }
 874                 if (!vlan) {
 875                         hostapd_logger(hapd, sta->addr,
 876                                        HOSTAPD_MODULE_IEEE80211,
 877                                        HOSTAPD_LEVEL_DEBUG,
 878                                        "per_sta_vif missing wildcard");
 879                         vlan_id = 0;
 880                         ret = -1;
 881                         goto done;
 882                 }
 883         } else if (vlan_desc && vlan_desc->notempty) {
 884                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 885                         if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
 886                                 break;
 887                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 888                                 wildcard_vlan = vlan;
 889                 }
 890                 if (vlan) {
 891                         vlan_id = vlan->vlan_id;
 892                 } else if (wildcard_vlan) {
 893                         vlan = wildcard_vlan;
 894                         vlan_id = vlan_desc->untagged;
 895                         if (vlan_desc->tagged[0]) {
 896                                 /* Tagged VLAN configuration */
 897                                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 898                         }
 899                 } else {
 900                         hostapd_logger(hapd, sta->addr,
 901                                        HOSTAPD_MODULE_IEEE80211,
 902                                        HOSTAPD_LEVEL_DEBUG,
 903                                        "missing vlan and wildcard for vlan=%d%s",
 904                                        vlan_desc->untagged,
 905                                        vlan_desc->tagged[0] ? "+" : "");
 906                         vlan_id = 0;
 907                         ret = -1;
 908                         goto done;
 909                 }
 910         }
 911
 912         if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
 913                 vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
 914                 if (vlan == NULL) {
 915                         hostapd_logger(hapd, sta->addr,
 916                                        HOSTAPD_MODULE_IEEE80211,
 917                                        HOSTAPD_LEVEL_DEBUG,
 918                                        "could not add dynamic VLAN interface for vlan=%d%s",
 919                                        vlan_desc ? vlan_desc->untagged : -1,
 920                                        (vlan_desc && vlan_desc->tagged[0]) ?
 921                                        "+" : "");
 922                         vlan_id = 0;
 923                         ret = -1;
 924                         goto done;
 925                 }
 926
 927                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 928                                HOSTAPD_LEVEL_DEBUG,
 929                                "added new dynamic VLAN interface '%s'",
 930                                vlan->ifname);
 931         } else if (vlan && vlan->dynamic_vlan > 0) {
 932                 vlan->dynamic_vlan++;
 933                 hostapd_logger(hapd, sta->addr,
 934                                HOSTAPD_MODULE_IEEE80211,
 935                                HOSTAPD_LEVEL_DEBUG,
 936                                "updated existing dynamic VLAN interface '%s'",
 937                                vlan->ifname);
 938         }
 939 done:
 940         old_vlan_id = sta->vlan_id;
 941         sta->vlan_id = vlan_id;
 942         sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
 943
 944         if (vlan_id != old_vlan_id && old_vlan_id)
 945                 vlan_remove_dynamic(hapd, old_vlan_id);
 946
 947         return ret;
 948 }
 949
 950
 951 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 952 {
 953 #ifndef CONFIG_NO_VLAN
 954         const char *iface;
 955         struct hostapd_vlan *vlan = NULL;
 956         int ret;
 957         int old_vlanid = sta->vlan_id_bound;
 958
 959         iface = hapd->conf->iface;
 960         if (hapd->conf->ssid.vlan[0])
 961                 iface = hapd->conf->ssid.vlan;
 962
 963         if (sta->vlan_id > 0) {
 964                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 965                         if (vlan->vlan_id == sta->vlan_id)
 966                                 break;
 967                 }
 968                 if (vlan)
 969                         iface = vlan->ifname;
 970         }
 971
 972         /*
 973          * Do not increment ref counters if the VLAN ID remains same, but do
 974          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 975          * have been called before.
 976          */
 977         if (sta->vlan_id == old_vlanid)
 978                 goto skip_counting;
 979
 980         if (sta->vlan_id > 0 && vlan == NULL) {
 981                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 982                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 983                                "binding station to (vlan_id=%d)",
 984                                sta->vlan_id);
 985                 ret = -1;
 986                 goto done;
 987         } else if (vlan && vlan->dynamic_vlan > 0) {
 988                 vlan->dynamic_vlan++;
 989                 hostapd_logger(hapd, sta->addr,
 990                                HOSTAPD_MODULE_IEEE80211,
 991                                HOSTAPD_LEVEL_DEBUG,
 992                                "updated existing dynamic VLAN interface '%s'",
 993                                iface);
 994         }
 995
 996         /* ref counters have been increased, so mark the station */
 997         sta->vlan_id_bound = sta->vlan_id;
 998
 999 skip_counting:
1000         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1001                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
1002                        "'%s'", iface);
1003
1004         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
1005                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
1006
1007         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
1008         if (ret < 0) {
1009                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1010                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
1011                                "entry to vlan_id=%d", sta->vlan_id);
1012         }
1013
1014         /* During 1x reauth, if the vlan id changes, then remove the old id. */
1015         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
1016                 vlan_remove_dynamic(hapd, old_vlanid);
1017 done:
1018
1019         return ret;
1020 #else /* CONFIG_NO_VLAN */
1021         return 0;
1022 #endif /* CONFIG_NO_VLAN */
1023 }
1024
1025
1026 #ifdef CONFIG_IEEE80211W
1027
1028 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
1029 {
1030         u32 tu;
1031         struct os_reltime now, passed;
1032         os_get_reltime(&now);
1033         os_reltime_sub(&now, &sta->sa_query_start, &passed);
1034         tu = (passed.sec * 1000000 + passed.usec) / 1024;
1035         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
1036                 hostapd_logger(hapd, sta->addr,
1037                                HOSTAPD_MODULE_IEEE80211,
1038                                HOSTAPD_LEVEL_DEBUG,
1039                                "association SA Query timed out");
1040                 sta->sa_query_timed_out = 1;
1041                 os_free(sta->sa_query_trans_id);
1042                 sta->sa_query_trans_id = NULL;
1043                 sta->sa_query_count = 0;
1044                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1045                 return 1;
1046         }
1047
1048         return 0;
1049 }
1050
1051
1052 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1053 {
1054         struct hostapd_data *hapd = eloop_ctx;
1055         struct sta_info *sta = timeout_ctx;
1056         unsigned int timeout, sec, usec;
1057         u8 *trans_id, *nbuf;
1058
1059         wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
1060                    " (count=%d)",
1061                    hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
1062
1063         if (sta->sa_query_count > 0 &&
1064             ap_check_sa_query_timeout(hapd, sta))
1065                 return;
1066
1067         nbuf = os_realloc_array(sta->sa_query_trans_id,
1068                                 sta->sa_query_count + 1,
1069                                 WLAN_SA_QUERY_TR_ID_LEN);
1070         if (nbuf == NULL)
1071                 return;
1072         if (sta->sa_query_count == 0) {
1073                 /* Starting a new SA Query procedure */
1074                 os_get_reltime(&sta->sa_query_start);
1075         }
1076         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1077         sta->sa_query_trans_id = nbuf;
1078         sta->sa_query_count++;
1079
1080         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1081                 /*
1082                  * We don't really care which ID is used here, so simply
1083                  * hardcode this if the mostly theoretical os_get_random()
1084                  * failure happens.
1085                  */
1086                 trans_id[0] = 0x12;
1087                 trans_id[1] = 0x34;
1088         }
1089
1090         timeout = hapd->conf->assoc_sa_query_retry_timeout;
1091         sec = ((timeout / 1000) * 1024) / 1000;
1092         usec = (timeout % 1000) * 1024;
1093         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1094
1095         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1096                        HOSTAPD_LEVEL_DEBUG,
1097                        "association SA Query attempt %d", sta->sa_query_count);
1098
1099         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1100 }
1101
1102
1103 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1104 {
1105         ap_sa_query_timer(hapd, sta);
1106 }
1107
1108
1109 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1110 {
1111         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1112         os_free(sta->sa_query_trans_id);
1113         sta->sa_query_trans_id = NULL;
1114         sta->sa_query_count = 0;
1115 }
1116
1117 #endif /* CONFIG_IEEE80211W */
1118
1119
1120 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1121                            int authorized)
1122 {
1123         const u8 *dev_addr = NULL;
1124         char buf[100];
1125 #ifdef CONFIG_P2P
1126         u8 addr[ETH_ALEN];
1127         u8 ip_addr_buf[4];
1128 #endif /* CONFIG_P2P */
1129
1130         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1131                 return;
1132
1133         if (authorized)
1134                 sta->flags |= WLAN_STA_AUTHORIZED;
1135         else
1136                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1137
1138 #ifdef CONFIG_P2P
1139         if (hapd->p2p_group == NULL) {
1140                 if (sta->p2p_ie != NULL &&
1141                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1142                         dev_addr = addr;
1143         } else
1144                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1145
1146         if (dev_addr)
1147                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1148                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1149         else
1150 #endif /* CONFIG_P2P */
1151                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1152
1153         if (hapd->sta_authorized_cb)
1154                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1155                                         sta->addr, authorized, dev_addr);
1156
1157         if (authorized) {
1158                 char ip_addr[100];
1159                 ip_addr[0] = '\0';
1160 #ifdef CONFIG_P2P
1161                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1162                         os_snprintf(ip_addr, sizeof(ip_addr),
1163                                     " ip_addr=%u.%u.%u.%u",
1164                                     ip_addr_buf[0], ip_addr_buf[1],
1165                                     ip_addr_buf[2], ip_addr_buf[3]);
1166                 }
1167 #endif /* CONFIG_P2P */
1168
1169                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1170                         buf, ip_addr);
1171
1172                 if (hapd->msg_ctx_parent &&
1173                     hapd->msg_ctx_parent != hapd->msg_ctx)
1174                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1175                                           AP_STA_CONNECTED "%s%s",
1176                                           buf, ip_addr);
1177         } else {
1178                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1179
1180                 if (hapd->msg_ctx_parent &&
1181                     hapd->msg_ctx_parent != hapd->msg_ctx)
1182                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1183                                           AP_STA_DISCONNECTED "%s", buf);
1184         }
1185
1186 #ifdef CONFIG_FST
1187         if (hapd->iface->fst) {
1188                 if (authorized)
1189                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1190                 else
1191                         fst_notify_peer_disconnected(hapd->iface->fst,
1192                                                      sta->addr);
1193         }
1194 #endif /* CONFIG_FST */
1195 }
1196
1197
1198 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1199                        const u8 *addr, u16 reason)
1200 {
1201         if (sta)
1202                 wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1203                            hapd->conf->iface, __func__, MAC2STR(sta->addr),
1204                            reason);
1205         else if (addr)
1206                 wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1207                            hapd->conf->iface, __func__, MAC2STR(addr),
1208                            reason);
1209
1210         if (sta == NULL && addr)
1211                 sta = ap_get_sta(hapd, addr);
1212
1213         if (addr)
1214                 hostapd_drv_sta_deauth(hapd, addr, reason);
1215
1216         if (sta == NULL)
1217                 return;
1218         ap_sta_set_authorized(hapd, sta, 0);
1219         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1220         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1221         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1222         wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1223                    "for " MACSTR " (%d seconds - "
1224                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1225                    hapd->conf->iface, __func__, MAC2STR(sta->addr),
1226                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1227         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1228         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1229                                ap_handle_timer, hapd, sta);
1230         sta->timeout_next = STA_REMOVE;
1231
1232         sta->deauth_reason = reason;
1233         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1234         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1235         eloop_register_timeout(hapd->iface->drv_flags &
1236                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1237                                ap_sta_deauth_cb_timeout, hapd, sta);
1238 }
1239
1240
1241 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1242 {
1243         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1244                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1245                 return;
1246         }
1247         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1248         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1249         ap_sta_deauth_cb_timeout(hapd, sta);
1250 }
1251
1252
1253 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1254 {
1255         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1256                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1257                 return;
1258         }
1259         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1260         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1261         ap_sta_disassoc_cb_timeout(hapd, sta);
1262 }
1263
1264
1265 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1266                                       struct sta_info *sta)
1267 {
1268         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1269                 wpa_printf(MSG_DEBUG,
1270                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1271                            MACSTR,
1272                            hapd->conf->iface, MAC2STR(sta->addr));
1273         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1274                 wpa_printf(MSG_DEBUG,
1275                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1276                            MACSTR,
1277                            hapd->conf->iface, MAC2STR(sta->addr));
1278 }
1279
1280
1281 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1282 {
1283         int res;
1284
1285         buf[0] = '\0';
1286         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1287                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1288                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1289                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1290                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1291                            ""),
1292                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1293                            "[SHORT_PREAMBLE]" : ""),
1294                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1295                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1296                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1297                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1298                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1299                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1300                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1301                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1302                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1303                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1304                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1305                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1306                            "[WNM_SLEEP_MODE]" : ""));
1307         if (os_snprintf_error(buflen, res))
1308                 res = -1;
1309
1310         return res;
1311 }