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_IEEE80211N
 226         ht40_intolerant_remove(hapd->iface, sta);
 227 #endif /* CONFIG_IEEE80211N */
 228
 229 #ifdef CONFIG_P2P
 230         if (sta->no_p2p_set) {
 231                 sta->no_p2p_set = 0;
 232                 hapd->num_sta_no_p2p--;
 233                 if (hapd->num_sta_no_p2p == 0)
 234                         hostapd_p2p_non_p2p_sta_disconnected(hapd);
 235         }
 236 #endif /* CONFIG_P2P */
 237
 238 #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
 239         if (hostapd_ht_operation_update(hapd->iface) > 0)
 240                 set_beacon++;
 241 #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
 242
 243 #ifdef CONFIG_MESH
 244         if (hapd->mesh_sta_free_cb)
 245                 hapd->mesh_sta_free_cb(hapd, sta);
 246 #endif /* CONFIG_MESH */
 247
 248         if (set_beacon)
 249                 ieee802_11_set_beacons(hapd->iface);
 250
 251         wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
 252                    __func__, MAC2STR(sta->addr));
 253         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 254         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 255         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 256         ap_sta_clear_disconnect_timeouts(hapd, sta);
 257         sae_clear_retransmit_timer(hapd, sta);
 258
 259         ieee802_1x_free_station(hapd, sta);
 260         wpa_auth_sta_deinit(sta->wpa_sm);
 261         rsn_preauth_free_station(hapd, sta);
 262 #ifndef CONFIG_NO_RADIUS
 263         if (hapd->radius)
 264                 radius_client_flush_auth(hapd->radius, sta->addr);
 265 #endif /* CONFIG_NO_RADIUS */
 266
 267 #ifndef CONFIG_NO_VLAN
 268         /*
 269          * sta->wpa_sm->group needs to be released before so that
 270          * vlan_remove_dynamic() can check that no stations are left on the
 271          * AP_VLAN netdev.
 272          */
 273         if (sta->vlan_id)
 274                 vlan_remove_dynamic(hapd, sta->vlan_id);
 275         if (sta->vlan_id_bound) {
 276                 /*
 277                  * Need to remove the STA entry before potentially removing the
 278                  * VLAN.
 279                  */
 280                 if (hapd->iface->driver_ap_teardown &&
 281                     !(sta->flags & WLAN_STA_PREAUTH)) {
 282                         hostapd_drv_sta_remove(hapd, sta->addr);
 283                         sta->added_unassoc = 0;
 284                 }
 285                 vlan_remove_dynamic(hapd, sta->vlan_id_bound);
 286         }
 287 #endif /* CONFIG_NO_VLAN */
 288
 289         os_free(sta->challenge);
 290
 291 #ifdef CONFIG_IEEE80211W
 292         os_free(sta->sa_query_trans_id);
 293         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
 294 #endif /* CONFIG_IEEE80211W */
 295
 296 #ifdef CONFIG_P2P
 297         p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
 298 #endif /* CONFIG_P2P */
 299
 300 #ifdef CONFIG_INTERWORKING
 301         if (sta->gas_dialog) {
 302                 int i;
 303                 for (i = 0; i < GAS_DIALOG_MAX; i++)
 304                         gas_serv_dialog_clear(&sta->gas_dialog[i]);
 305                 os_free(sta->gas_dialog);
 306         }
 307 #endif /* CONFIG_INTERWORKING */
 308
 309         wpabuf_free(sta->wps_ie);
 310         wpabuf_free(sta->p2p_ie);
 311         wpabuf_free(sta->hs20_ie);
 312 #ifdef CONFIG_FST
 313         wpabuf_free(sta->mb_ies);
 314 #endif /* CONFIG_FST */
 315
 316         os_free(sta->ht_capabilities);
 317         os_free(sta->vht_capabilities);
 318         hostapd_free_psk_list(sta->psk);
 319         os_free(sta->identity);
 320         os_free(sta->radius_cui);
 321         os_free(sta->remediation_url);
 322         wpabuf_free(sta->hs20_deauth_req);
 323         os_free(sta->hs20_session_info_url);
 324
 325 #ifdef CONFIG_SAE
 326         sae_clear_data(sta->sae);
 327         os_free(sta->sae);
 328 #endif /* CONFIG_SAE */
 329
 330         mbo_ap_sta_free(sta);
 331         os_free(sta->supp_op_classes);
 332
 333         os_free(sta);
 334 }
 335
 336
 337 void hostapd_free_stas(struct hostapd_data *hapd)
 338 {
 339         struct sta_info *sta, *prev;
 340
 341         sta = hapd->sta_list;
 342
 343         while (sta) {
 344                 prev = sta;
 345                 if (sta->flags & WLAN_STA_AUTH) {
 346                         mlme_deauthenticate_indication(
 347                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 348                 }
 349                 sta = sta->next;
 350                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 351                            MAC2STR(prev->addr));
 352                 ap_free_sta(hapd, prev);
 353         }
 354 }
 355
 356
 357 /**
 358  * ap_handle_timer - Per STA timer handler
 359  * @eloop_ctx: struct hostapd_data *
 360  * @timeout_ctx: struct sta_info *
 361  *
 362  * This function is called to check station activity and to remove inactive
 363  * stations.
 364  */
 365 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 366 {
 367         struct hostapd_data *hapd = eloop_ctx;
 368         struct sta_info *sta = timeout_ctx;
 369         unsigned long next_time = 0;
 370         int reason;
 371
 372         wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
 373                    hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
 374                    sta->timeout_next);
 375         if (sta->timeout_next == STA_REMOVE) {
 376                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 377                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 378                                "local deauth request");
 379                 ap_free_sta(hapd, sta);
 380                 return;
 381         }
 382
 383         if ((sta->flags & WLAN_STA_ASSOC) &&
 384             (sta->timeout_next == STA_NULLFUNC ||
 385              sta->timeout_next == STA_DISASSOC)) {
 386                 int inactive_sec;
 387                 /*
 388                  * Add random value to timeout so that we don't end up bouncing
 389                  * all stations at the same time if we have lots of associated
 390                  * stations that are idle (but keep re-associating).
 391                  */
 392                 int fuzz = os_random() % 20;
 393                 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
 394                 if (inactive_sec == -1) {
 395                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 396                                 "Check inactivity: Could not "
 397                                 "get station info from kernel driver for "
 398                                 MACSTR, MAC2STR(sta->addr));
 399                         /*
 400                          * The driver may not support this functionality.
 401                          * Anyway, try again after the next inactivity timeout,
 402                          * but do not disconnect the station now.
 403                          */
 404                         next_time = hapd->conf->ap_max_inactivity + fuzz;
 405                 } else if (inactive_sec == -ENOENT) {
 406                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 407                                 "Station " MACSTR " has lost its driver entry",
 408                                 MAC2STR(sta->addr));
 409
 410                         /* Avoid sending client probe on removed client */
 411                         sta->timeout_next = STA_DISASSOC;
 412                         goto skip_poll;
 413                 } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
 414                         /* station activity detected; reset timeout state */
 415                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 416                                 "Station " MACSTR " has been active %is ago",
 417                                 MAC2STR(sta->addr), inactive_sec);
 418                         sta->timeout_next = STA_NULLFUNC;
 419                         next_time = hapd->conf->ap_max_inactivity + fuzz -
 420                                 inactive_sec;
 421                 } else {
 422                         wpa_msg(hapd->msg_ctx, MSG_DEBUG,
 423                                 "Station " MACSTR " has been "
 424                                 "inactive too long: %d sec, max allowed: %d",
 425                                 MAC2STR(sta->addr), inactive_sec,
 426                                 hapd->conf->ap_max_inactivity);
 427
 428                         if (hapd->conf->skip_inactivity_poll)
 429                                 sta->timeout_next = STA_DISASSOC;
 430                 }
 431         }
 432
 433         if ((sta->flags & WLAN_STA_ASSOC) &&
 434             sta->timeout_next == STA_DISASSOC &&
 435             !(sta->flags & WLAN_STA_PENDING_POLL) &&
 436             !hapd->conf->skip_inactivity_poll) {
 437                 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
 438                         " has ACKed data poll", MAC2STR(sta->addr));
 439                 /* data nullfunc frame poll did not produce TX errors; assume
 440                  * station ACKed it */
 441                 sta->timeout_next = STA_NULLFUNC;
 442                 next_time = hapd->conf->ap_max_inactivity;
 443         }
 444
 445 skip_poll:
 446         if (next_time) {
 447                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 448                            "for " MACSTR " (%lu seconds)",
 449                            __func__, MAC2STR(sta->addr), next_time);
 450                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 451                                        sta);
 452                 return;
 453         }
 454
 455         if (sta->timeout_next == STA_NULLFUNC &&
 456             (sta->flags & WLAN_STA_ASSOC)) {
 457                 wpa_printf(MSG_DEBUG, "  Polling STA");
 458                 sta->flags |= WLAN_STA_PENDING_POLL;
 459                 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
 460                                         sta->flags & WLAN_STA_WMM);
 461         } else if (sta->timeout_next != STA_REMOVE) {
 462                 int deauth = sta->timeout_next == STA_DEAUTH;
 463
 464                 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
 465                         "Timeout, sending %s info to STA " MACSTR,
 466                         deauth ? "deauthentication" : "disassociation",
 467                         MAC2STR(sta->addr));
 468
 469                 if (deauth) {
 470                         hostapd_drv_sta_deauth(
 471                                 hapd, sta->addr,
 472                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
 473                 } else {
 474                         reason = (sta->timeout_next == STA_DISASSOC) ?
 475                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 476                                 WLAN_REASON_PREV_AUTH_NOT_VALID;
 477
 478                         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 479                 }
 480         }
 481
 482         switch (sta->timeout_next) {
 483         case STA_NULLFUNC:
 484                 sta->timeout_next = STA_DISASSOC;
 485                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 486                            "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
 487                            __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
 488                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 489                                        hapd, sta);
 490                 break;
 491         case STA_DISASSOC:
 492         case STA_DISASSOC_FROM_CLI:
 493                 ap_sta_set_authorized(hapd, sta, 0);
 494                 sta->flags &= ~WLAN_STA_ASSOC;
 495                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 496                 if (!sta->acct_terminate_cause)
 497                         sta->acct_terminate_cause =
 498                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 499                 accounting_sta_stop(hapd, sta);
 500                 ieee802_1x_free_station(hapd, sta);
 501                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 502                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 503                                "inactivity");
 504                 reason = (sta->timeout_next == STA_DISASSOC) ?
 505                         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
 506                         WLAN_REASON_PREV_AUTH_NOT_VALID;
 507                 sta->timeout_next = STA_DEAUTH;
 508                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 509                            "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
 510                            __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
 511                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 512                                        hapd, sta);
 513                 mlme_disassociate_indication(hapd, sta, reason);
 514                 break;
 515         case STA_DEAUTH:
 516         case STA_REMOVE:
 517                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 518                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 519                                "inactivity (timer DEAUTH/REMOVE)");
 520                 if (!sta->acct_terminate_cause)
 521                         sta->acct_terminate_cause =
 522                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 523                 mlme_deauthenticate_indication(
 524                         hapd, sta,
 525                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 526                 ap_free_sta(hapd, sta);
 527                 break;
 528         }
 529 }
 530
 531
 532 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 533 {
 534         struct hostapd_data *hapd = eloop_ctx;
 535         struct sta_info *sta = timeout_ctx;
 536
 537         wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
 538                    hapd->conf->iface, MAC2STR(sta->addr));
 539         if (!(sta->flags & WLAN_STA_AUTH)) {
 540                 if (sta->flags & WLAN_STA_GAS) {
 541                         wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
 542                                    "entry " MACSTR, MAC2STR(sta->addr));
 543                         ap_free_sta(hapd, sta);
 544                 }
 545                 return;
 546         }
 547
 548         hostapd_drv_sta_deauth(hapd, sta->addr,
 549                                WLAN_REASON_PREV_AUTH_NOT_VALID);
 550         mlme_deauthenticate_indication(hapd, sta,
 551                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 552         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 553                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 554                        "session timeout");
 555         sta->acct_terminate_cause =
 556                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 557         ap_free_sta(hapd, sta);
 558 }
 559
 560
 561 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 562                               u32 session_timeout)
 563 {
 564         if (eloop_replenish_timeout(session_timeout, 0,
 565                                     ap_handle_session_timer, hapd, sta) == 1) {
 566                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 567                                HOSTAPD_LEVEL_DEBUG, "setting session timeout "
 568                                "to %d seconds", session_timeout);
 569         }
 570 }
 571
 572
 573 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 574                             u32 session_timeout)
 575 {
 576         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 577                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 578                        "seconds", session_timeout);
 579         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 580         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 581                                hapd, sta);
 582 }
 583
 584
 585 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 586 {
 587         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 588 }
 589
 590
 591 static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
 592 {
 593 #ifdef CONFIG_WNM
 594         struct hostapd_data *hapd = eloop_ctx;
 595         struct sta_info *sta = timeout_ctx;
 596
 597         wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
 598                    MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
 599         if (sta->hs20_session_info_url == NULL)
 600                 return;
 601
 602         wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
 603                                        sta->hs20_disassoc_timer);
 604 #endif /* CONFIG_WNM */
 605 }
 606
 607
 608 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 609                                     struct sta_info *sta, int warning_time)
 610 {
 611         eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 612         eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
 613                                hapd, sta);
 614 }
 615
 616
 617 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 618 {
 619         struct sta_info *sta;
 620
 621         sta = ap_get_sta(hapd, addr);
 622         if (sta)
 623                 return sta;
 624
 625         wpa_printf(MSG_DEBUG, "  New STA");
 626         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 627                 /* FIX: might try to remove some old STAs first? */
 628                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 629                            hapd->num_sta, hapd->conf->max_num_sta);
 630                 return NULL;
 631         }
 632
 633         sta = os_zalloc(sizeof(struct sta_info));
 634         if (sta == NULL) {
 635                 wpa_printf(MSG_ERROR, "malloc failed");
 636                 return NULL;
 637         }
 638         sta->acct_interim_interval = hapd->conf->acct_interim_interval;
 639         if (accounting_sta_get_id(hapd, sta) < 0) {
 640                 os_free(sta);
 641                 return NULL;
 642         }
 643
 644         if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
 645                 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
 646                            "for " MACSTR " (%d seconds - ap_max_inactivity)",
 647                            __func__, MAC2STR(addr),
 648                            hapd->conf->ap_max_inactivity);
 649                 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 650                                        ap_handle_timer, hapd, sta);
 651         }
 652
 653         /* initialize STA info data */
 654         os_memcpy(sta->addr, addr, ETH_ALEN);
 655         sta->next = hapd->sta_list;
 656         hapd->sta_list = sta;
 657         hapd->num_sta++;
 658         ap_sta_hash_add(hapd, sta);
 659         ap_sta_remove_in_other_bss(hapd, sta);
 660         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 661         dl_list_init(&sta->ip6addr);
 662
 663         return sta;
 664 }
 665
 666
 667 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 668 {
 669         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 670
 671         if (sta->ipaddr)
 672                 hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
 673         ap_sta_ip6addr_del(hapd, sta);
 674
 675         wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
 676                    hapd->conf->iface, MAC2STR(sta->addr));
 677         if (hostapd_drv_sta_remove(hapd, sta->addr) &&
 678             sta->flags & WLAN_STA_ASSOC) {
 679                 wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
 680                            " from kernel driver",
 681                            hapd->conf->iface, MAC2STR(sta->addr));
 682                 return -1;
 683         }
 684         sta->added_unassoc = 0;
 685         return 0;
 686 }
 687
 688
 689 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 690                                        struct sta_info *sta)
 691 {
 692         struct hostapd_iface *iface = hapd->iface;
 693         size_t i;
 694
 695         for (i = 0; i < iface->num_bss; i++) {
 696                 struct hostapd_data *bss = iface->bss[i];
 697                 struct sta_info *sta2;
 698                 /* bss should always be set during operation, but it may be
 699                  * NULL during reconfiguration. Assume the STA is not
 700                  * associated to another BSS in that case to avoid NULL pointer
 701                  * dereferences. */
 702                 if (bss == hapd || bss == NULL)
 703                         continue;
 704                 sta2 = ap_get_sta(bss, sta->addr);
 705                 if (!sta2)
 706                         continue;
 707
 708                 wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
 709                            " association from another BSS %s",
 710                            hapd->conf->iface, MAC2STR(sta2->addr),
 711                            bss->conf->iface);
 712                 ap_sta_disconnect(bss, sta2, sta2->addr,
 713                                   WLAN_REASON_PREV_AUTH_NOT_VALID);
 714         }
 715 }
 716
 717
 718 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 719 {
 720         struct hostapd_data *hapd = eloop_ctx;
 721         struct sta_info *sta = timeout_ctx;
 722
 723         wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
 724                    hapd->conf->iface, MAC2STR(sta->addr));
 725         ap_sta_remove(hapd, sta);
 726         mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
 727 }
 728
 729
 730 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 731                          u16 reason)
 732 {
 733         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 734                    hapd->conf->iface, MAC2STR(sta->addr));
 735         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 736         sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 737         ap_sta_set_authorized(hapd, sta, 0);
 738         sta->timeout_next = STA_DEAUTH;
 739         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 740                    "for " MACSTR " (%d seconds - "
 741                    "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
 742                    __func__, MAC2STR(sta->addr),
 743                    AP_MAX_INACTIVITY_AFTER_DISASSOC);
 744         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 745         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 746                                ap_handle_timer, hapd, sta);
 747         accounting_sta_stop(hapd, sta);
 748         ieee802_1x_free_station(hapd, sta);
 749
 750         sta->disassoc_reason = reason;
 751         sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
 752         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 753         eloop_register_timeout(hapd->iface->drv_flags &
 754                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 755                                ap_sta_disassoc_cb_timeout, hapd, sta);
 756 }
 757
 758
 759 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
 760 {
 761         struct hostapd_data *hapd = eloop_ctx;
 762         struct sta_info *sta = timeout_ctx;
 763
 764         wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
 765                    hapd->conf->iface, MAC2STR(sta->addr));
 766         ap_sta_remove(hapd, sta);
 767         mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
 768 }
 769
 770
 771 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 772                            u16 reason)
 773 {
 774         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 775                    hapd->conf->iface, MAC2STR(sta->addr));
 776         sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
 777         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
 778         ap_sta_set_authorized(hapd, sta, 0);
 779         sta->timeout_next = STA_REMOVE;
 780         wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
 781                    "for " MACSTR " (%d seconds - "
 782                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
 783                    __func__, MAC2STR(sta->addr),
 784                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
 785         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 786         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 787                                ap_handle_timer, hapd, sta);
 788         accounting_sta_stop(hapd, sta);
 789         ieee802_1x_free_station(hapd, sta);
 790
 791         sta->deauth_reason = reason;
 792         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
 793         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 794         eloop_register_timeout(hapd->iface->drv_flags &
 795                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
 796                                ap_sta_deauth_cb_timeout, hapd, sta);
 797 }
 798
 799
 800 #ifdef CONFIG_WPS
 801 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 802                       struct sta_info *sta, void *ctx)
 803 {
 804         if (sta && (sta->flags & WLAN_STA_WPS)) {
 805                 ap_sta_deauthenticate(hapd, sta,
 806                                       WLAN_REASON_PREV_AUTH_NOT_VALID);
 807                 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
 808                            __func__, MAC2STR(sta->addr));
 809                 return 1;
 810         }
 811
 812         return 0;
 813 }
 814 #endif /* CONFIG_WPS */
 815
 816
 817 static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
 818 {
 819         struct hostapd_vlan *vlan;
 820         int vlan_id = MAX_VLAN_ID + 2;
 821
 822 retry:
 823         for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 824                 if (vlan->vlan_id == vlan_id) {
 825                         vlan_id++;
 826                         goto retry;
 827                 }
 828         }
 829         return vlan_id;
 830 }
 831
 832
 833 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 834                     struct vlan_description *vlan_desc)
 835 {
 836         struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
 837         int old_vlan_id, vlan_id = 0, ret = 0;
 838
 839         if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 840                 vlan_desc = NULL;
 841
 842         /* Check if there is something to do */
 843         if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
 844                 /* This sta is lacking its own vif */
 845         } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
 846                    !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
 847                 /* sta->vlan_id needs to be reset */
 848         } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
 849                 return 0; /* nothing to change */
 850         }
 851
 852         /* Now the real VLAN changed or the STA just needs its own vif */
 853         if (hapd->conf->ssid.per_sta_vif) {
 854                 /* Assign a new vif, always */
 855                 /* find a free vlan_id sufficiently big */
 856                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 857                 /* Get wildcard VLAN */
 858                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 859                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 860                                 break;
 861                 }
 862                 if (!vlan) {
 863                         hostapd_logger(hapd, sta->addr,
 864                                        HOSTAPD_MODULE_IEEE80211,
 865                                        HOSTAPD_LEVEL_DEBUG,
 866                                        "per_sta_vif missing wildcard");
 867                         vlan_id = 0;
 868                         ret = -1;
 869                         goto done;
 870                 }
 871         } else if (vlan_desc && vlan_desc->notempty) {
 872                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 873                         if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
 874                                 break;
 875                         if (vlan->vlan_id == VLAN_ID_WILDCARD)
 876                                 wildcard_vlan = vlan;
 877                 }
 878                 if (vlan) {
 879                         vlan_id = vlan->vlan_id;
 880                 } else if (wildcard_vlan) {
 881                         vlan = wildcard_vlan;
 882                         vlan_id = vlan_desc->untagged;
 883                         if (vlan_desc->tagged[0]) {
 884                                 /* Tagged VLAN configuration */
 885                                 vlan_id = ap_sta_get_free_vlan_id(hapd);
 886                         }
 887                 } else {
 888                         hostapd_logger(hapd, sta->addr,
 889                                        HOSTAPD_MODULE_IEEE80211,
 890                                        HOSTAPD_LEVEL_DEBUG,
 891                                        "missing vlan and wildcard for vlan=%d%s",
 892                                        vlan_desc->untagged,
 893                                        vlan_desc->tagged[0] ? "+" : "");
 894                         vlan_id = 0;
 895                         ret = -1;
 896                         goto done;
 897                 }
 898         }
 899
 900         if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
 901                 vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
 902                 if (vlan == NULL) {
 903                         hostapd_logger(hapd, sta->addr,
 904                                        HOSTAPD_MODULE_IEEE80211,
 905                                        HOSTAPD_LEVEL_DEBUG,
 906                                        "could not add dynamic VLAN interface for vlan=%d%s",
 907                                        vlan_desc ? vlan_desc->untagged : -1,
 908                                        (vlan_desc && vlan_desc->tagged[0]) ?
 909                                        "+" : "");
 910                         vlan_id = 0;
 911                         ret = -1;
 912                         goto done;
 913                 }
 914
 915                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 916                                HOSTAPD_LEVEL_DEBUG,
 917                                "added new dynamic VLAN interface '%s'",
 918                                vlan->ifname);
 919         } else if (vlan && vlan->dynamic_vlan > 0) {
 920                 vlan->dynamic_vlan++;
 921                 hostapd_logger(hapd, sta->addr,
 922                                HOSTAPD_MODULE_IEEE80211,
 923                                HOSTAPD_LEVEL_DEBUG,
 924                                "updated existing dynamic VLAN interface '%s'",
 925                                vlan->ifname);
 926         }
 927 done:
 928         old_vlan_id = sta->vlan_id;
 929         sta->vlan_id = vlan_id;
 930         sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
 931
 932         if (vlan_id != old_vlan_id && old_vlan_id)
 933                 vlan_remove_dynamic(hapd, old_vlan_id);
 934
 935         return ret;
 936 }
 937
 938
 939 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
 940 {
 941 #ifndef CONFIG_NO_VLAN
 942         const char *iface;
 943         struct hostapd_vlan *vlan = NULL;
 944         int ret;
 945         int old_vlanid = sta->vlan_id_bound;
 946
 947         iface = hapd->conf->iface;
 948         if (hapd->conf->ssid.vlan[0])
 949                 iface = hapd->conf->ssid.vlan;
 950
 951         if (sta->vlan_id > 0) {
 952                 for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
 953                         if (vlan->vlan_id == sta->vlan_id)
 954                                 break;
 955                 }
 956                 if (vlan)
 957                         iface = vlan->ifname;
 958         }
 959
 960         /*
 961          * Do not increment ref counters if the VLAN ID remains same, but do
 962          * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
 963          * have been called before.
 964          */
 965         if (sta->vlan_id == old_vlanid)
 966                 goto skip_counting;
 967
 968         if (sta->vlan_id > 0 && vlan == NULL) {
 969                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 970                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 971                                "binding station to (vlan_id=%d)",
 972                                sta->vlan_id);
 973                 ret = -1;
 974                 goto done;
 975         } else if (vlan && vlan->dynamic_vlan > 0) {
 976                 vlan->dynamic_vlan++;
 977                 hostapd_logger(hapd, sta->addr,
 978                                HOSTAPD_MODULE_IEEE80211,
 979                                HOSTAPD_LEVEL_DEBUG,
 980                                "updated existing dynamic VLAN interface '%s'",
 981                                iface);
 982         }
 983
 984         /* ref counters have been increased, so mark the station */
 985         sta->vlan_id_bound = sta->vlan_id;
 986
 987 skip_counting:
 988         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 989                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 990                        "'%s'", iface);
 991
 992         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 993                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 994
 995         ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 996         if (ret < 0) {
 997                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 998                                HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
 999                                "entry to vlan_id=%d", sta->vlan_id);
1000         }
1001
1002         /* During 1x reauth, if the vlan id changes, then remove the old id. */
1003         if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
1004                 vlan_remove_dynamic(hapd, old_vlanid);
1005 done:
1006
1007         return ret;
1008 #else /* CONFIG_NO_VLAN */
1009         return 0;
1010 #endif /* CONFIG_NO_VLAN */
1011 }
1012
1013
1014 #ifdef CONFIG_IEEE80211W
1015
1016 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
1017 {
1018         u32 tu;
1019         struct os_reltime now, passed;
1020         os_get_reltime(&now);
1021         os_reltime_sub(&now, &sta->sa_query_start, &passed);
1022         tu = (passed.sec * 1000000 + passed.usec) / 1024;
1023         if (hapd->conf->assoc_sa_query_max_timeout < tu) {
1024                 hostapd_logger(hapd, sta->addr,
1025                                HOSTAPD_MODULE_IEEE80211,
1026                                HOSTAPD_LEVEL_DEBUG,
1027                                "association SA Query timed out");
1028                 sta->sa_query_timed_out = 1;
1029                 os_free(sta->sa_query_trans_id);
1030                 sta->sa_query_trans_id = NULL;
1031                 sta->sa_query_count = 0;
1032                 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1033                 return 1;
1034         }
1035
1036         return 0;
1037 }
1038
1039
1040 static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1041 {
1042         struct hostapd_data *hapd = eloop_ctx;
1043         struct sta_info *sta = timeout_ctx;
1044         unsigned int timeout, sec, usec;
1045         u8 *trans_id, *nbuf;
1046
1047         wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
1048                    " (count=%d)",
1049                    hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
1050
1051         if (sta->sa_query_count > 0 &&
1052             ap_check_sa_query_timeout(hapd, sta))
1053                 return;
1054
1055         nbuf = os_realloc_array(sta->sa_query_trans_id,
1056                                 sta->sa_query_count + 1,
1057                                 WLAN_SA_QUERY_TR_ID_LEN);
1058         if (nbuf == NULL)
1059                 return;
1060         if (sta->sa_query_count == 0) {
1061                 /* Starting a new SA Query procedure */
1062                 os_get_reltime(&sta->sa_query_start);
1063         }
1064         trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1065         sta->sa_query_trans_id = nbuf;
1066         sta->sa_query_count++;
1067
1068         if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1069                 /*
1070                  * We don't really care which ID is used here, so simply
1071                  * hardcode this if the mostly theoretical os_get_random()
1072                  * failure happens.
1073                  */
1074                 trans_id[0] = 0x12;
1075                 trans_id[1] = 0x34;
1076         }
1077
1078         timeout = hapd->conf->assoc_sa_query_retry_timeout;
1079         sec = ((timeout / 1000) * 1024) / 1000;
1080         usec = (timeout % 1000) * 1024;
1081         eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1082
1083         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1084                        HOSTAPD_LEVEL_DEBUG,
1085                        "association SA Query attempt %d", sta->sa_query_count);
1086
1087         ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1088 }
1089
1090
1091 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1092 {
1093         ap_sa_query_timer(hapd, sta);
1094 }
1095
1096
1097 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1098 {
1099         eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1100         os_free(sta->sa_query_trans_id);
1101         sta->sa_query_trans_id = NULL;
1102         sta->sa_query_count = 0;
1103 }
1104
1105 #endif /* CONFIG_IEEE80211W */
1106
1107
1108 void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1109                            int authorized)
1110 {
1111         const u8 *dev_addr = NULL;
1112         char buf[100];
1113 #ifdef CONFIG_P2P
1114         u8 addr[ETH_ALEN];
1115         u8 ip_addr_buf[4];
1116 #endif /* CONFIG_P2P */
1117
1118         if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1119                 return;
1120
1121         if (authorized)
1122                 sta->flags |= WLAN_STA_AUTHORIZED;
1123         else
1124                 sta->flags &= ~WLAN_STA_AUTHORIZED;
1125
1126 #ifdef CONFIG_P2P
1127         if (hapd->p2p_group == NULL) {
1128                 if (sta->p2p_ie != NULL &&
1129                     p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1130                         dev_addr = addr;
1131         } else
1132                 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1133
1134         if (dev_addr)
1135                 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1136                             MAC2STR(sta->addr), MAC2STR(dev_addr));
1137         else
1138 #endif /* CONFIG_P2P */
1139                 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1140
1141         if (hapd->sta_authorized_cb)
1142                 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1143                                         sta->addr, authorized, dev_addr);
1144
1145         if (authorized) {
1146                 char ip_addr[100];
1147                 ip_addr[0] = '\0';
1148 #ifdef CONFIG_P2P
1149                 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1150                         os_snprintf(ip_addr, sizeof(ip_addr),
1151                                     " ip_addr=%u.%u.%u.%u",
1152                                     ip_addr_buf[0], ip_addr_buf[1],
1153                                     ip_addr_buf[2], ip_addr_buf[3]);
1154                 }
1155 #endif /* CONFIG_P2P */
1156
1157                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1158                         buf, ip_addr);
1159
1160                 if (hapd->msg_ctx_parent &&
1161                     hapd->msg_ctx_parent != hapd->msg_ctx)
1162                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1163                                           AP_STA_CONNECTED "%s%s",
1164                                           buf, ip_addr);
1165         } else {
1166                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1167
1168                 if (hapd->msg_ctx_parent &&
1169                     hapd->msg_ctx_parent != hapd->msg_ctx)
1170                         wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1171                                           AP_STA_DISCONNECTED "%s", buf);
1172         }
1173
1174 #ifdef CONFIG_FST
1175         if (hapd->iface->fst) {
1176                 if (authorized)
1177                         fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1178                 else
1179                         fst_notify_peer_disconnected(hapd->iface->fst,
1180                                                      sta->addr);
1181         }
1182 #endif /* CONFIG_FST */
1183 }
1184
1185
1186 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1187                        const u8 *addr, u16 reason)
1188 {
1189         if (sta)
1190                 wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1191                            hapd->conf->iface, __func__, MAC2STR(sta->addr),
1192                            reason);
1193         else if (addr)
1194                 wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1195                            hapd->conf->iface, __func__, MAC2STR(addr),
1196                            reason);
1197
1198         if (sta == NULL && addr)
1199                 sta = ap_get_sta(hapd, addr);
1200
1201         if (addr)
1202                 hostapd_drv_sta_deauth(hapd, addr, reason);
1203
1204         if (sta == NULL)
1205                 return;
1206         ap_sta_set_authorized(hapd, sta, 0);
1207         wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1208         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1209         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1210         wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1211                    "for " MACSTR " (%d seconds - "
1212                    "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1213                    hapd->conf->iface, __func__, MAC2STR(sta->addr),
1214                    AP_MAX_INACTIVITY_AFTER_DEAUTH);
1215         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1216         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1217                                ap_handle_timer, hapd, sta);
1218         sta->timeout_next = STA_REMOVE;
1219
1220         sta->deauth_reason = reason;
1221         sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1222         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1223         eloop_register_timeout(hapd->iface->drv_flags &
1224                                WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1225                                ap_sta_deauth_cb_timeout, hapd, sta);
1226 }
1227
1228
1229 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1230 {
1231         if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1232                 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1233                 return;
1234         }
1235         sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1236         eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1237         ap_sta_deauth_cb_timeout(hapd, sta);
1238 }
1239
1240
1241 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1242 {
1243         if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1244                 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1245                 return;
1246         }
1247         sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1248         eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1249         ap_sta_disassoc_cb_timeout(hapd, sta);
1250 }
1251
1252
1253 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1254                                       struct sta_info *sta)
1255 {
1256         if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1257                 wpa_printf(MSG_DEBUG,
1258                            "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1259                            MACSTR,
1260                            hapd->conf->iface, MAC2STR(sta->addr));
1261         if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1262                 wpa_printf(MSG_DEBUG,
1263                            "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1264                            MACSTR,
1265                            hapd->conf->iface, MAC2STR(sta->addr));
1266 }
1267
1268
1269 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1270 {
1271         int res;
1272
1273         buf[0] = '\0';
1274         res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1275                           (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1276                           (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1277                           (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1278                           (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1279                            ""),
1280                           (flags & WLAN_STA_SHORT_PREAMBLE ?
1281                            "[SHORT_PREAMBLE]" : ""),
1282                           (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1283                           (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1284                           (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1285                           (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1286                           (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1287                           (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1288                           (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1289                           (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1290                           (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1291                           (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1292                           (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1293                           (flags & WLAN_STA_WNM_SLEEP_MODE ?
1294                            "[WNM_SLEEP_MODE]" : ""));
1295         if (os_snprintf_error(buflen, res))
1296                 res = -1;
1297
1298         return res;
1299 }