vcs.maemo.org Git - wpasupplicant/blob - hostapd/sta_info.c

   1 /*
   2  * hostapd / Station table
   3  * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "hostapd.h"
  18 #include "sta_info.h"
  19 #include "eloop.h"
  20 #include "accounting.h"
  21 #include "ieee802_1x.h"
  22 #include "ieee802_11.h"
  23 #include "radius/radius.h"
  24 #include "wpa.h"
  25 #include "preauth.h"
  26 #include "radius/radius_client.h"
  27 #include "driver.h"
  28 #include "beacon.h"
  29 #include "hw_features.h"
  30 #include "mlme.h"
  31 #include "vlan_init.h"
  32
  33 static int ap_sta_in_other_bss(struct hostapd_data *hapd,
  34                                struct sta_info *sta, u32 flags);
  35 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
  36
  37 int ap_for_each_sta(struct hostapd_data *hapd,
  38                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
  39                               void *ctx),
  40                     void *ctx)
  41 {
  42         struct sta_info *sta;
  43
  44         for (sta = hapd->sta_list; sta; sta = sta->next) {
  45                 if (cb(hapd, sta, ctx))
  46                         return 1;
  47         }
  48
  49         return 0;
  50 }
  51
  52
  53 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
  54 {
  55         struct sta_info *s;
  56
  57         s = hapd->sta_hash[STA_HASH(sta)];
  58         while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
  59                 s = s->hnext;
  60         return s;
  61 }
  62
  63
  64 static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
  65 {
  66         struct sta_info *tmp;
  67
  68         if (hapd->sta_list == sta) {
  69                 hapd->sta_list = sta->next;
  70                 return;
  71         }
  72
  73         tmp = hapd->sta_list;
  74         while (tmp != NULL && tmp->next != sta)
  75                 tmp = tmp->next;
  76         if (tmp == NULL) {
  77                 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
  78                            "list.", MAC2STR(sta->addr));
  79         } else
  80                 tmp->next = sta->next;
  81 }
  82
  83
  84 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
  85 {
  86         sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
  87         hapd->sta_hash[STA_HASH(sta->addr)] = sta;
  88 }
  89
  90
  91 static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
  92 {
  93         struct sta_info *s;
  94
  95         s = hapd->sta_hash[STA_HASH(sta->addr)];
  96         if (s == NULL) return;
  97         if (os_memcmp(s->addr, sta->addr, 6) == 0) {
  98                 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
  99                 return;
 100         }
 101
 102         while (s->hnext != NULL &&
 103                os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
 104                 s = s->hnext;
 105         if (s->hnext != NULL)
 106                 s->hnext = s->hnext->hnext;
 107         else
 108                 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
 109                            " from hash table", MAC2STR(sta->addr));
 110 }
 111
 112
 113 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 114 {
 115         int set_beacon = 0;
 116
 117         accounting_sta_stop(hapd, sta);
 118
 119         if (!ap_sta_in_other_bss(hapd, sta, WLAN_STA_ASSOC) &&
 120             !(sta->flags & WLAN_STA_PREAUTH))
 121                 hostapd_sta_remove(hapd, sta->addr);
 122
 123         ap_sta_hash_del(hapd, sta);
 124         ap_sta_list_del(hapd, sta);
 125
 126         if (sta->aid > 0)
 127                 hapd->sta_aid[sta->aid - 1] = NULL;
 128
 129         hapd->num_sta--;
 130         if (sta->nonerp_set) {
 131                 sta->nonerp_set = 0;
 132                 hapd->iface->num_sta_non_erp--;
 133                 if (hapd->iface->num_sta_non_erp == 0)
 134                         set_beacon++;
 135         }
 136
 137         if (sta->no_short_slot_time_set) {
 138                 sta->no_short_slot_time_set = 0;
 139                 hapd->iface->num_sta_no_short_slot_time--;
 140                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 141                     && hapd->iface->num_sta_no_short_slot_time == 0)
 142                         set_beacon++;
 143         }
 144
 145         if (sta->no_short_preamble_set) {
 146                 sta->no_short_preamble_set = 0;
 147                 hapd->iface->num_sta_no_short_preamble--;
 148                 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
 149                     && hapd->iface->num_sta_no_short_preamble == 0)
 150                         set_beacon++;
 151         }
 152
 153 #ifdef CONFIG_IEEE80211N
 154         if (sta->flags & WLAN_STA_HT) {
 155                 if ((sta->ht_capabilities.data.capabilities_info &
 156                      HT_CAP_INFO_GREEN_FIELD) == 0)
 157                         hapd->iface->num_sta_ht_no_gf--;
 158                 if ((sta->ht_capabilities.data.capabilities_info &
 159                      HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET) == 0)
 160                         hapd->iface->num_sta_ht_20mhz--;
 161         } else
 162                 hapd->iface->num_sta_no_ht--;
 163
 164         if (hostapd_ht_operation_update(hapd->iface) > 0)
 165                 set_beacon++;
 166 #endif /* CONFIG_IEEE80211N */
 167
 168         if (set_beacon)
 169                 ieee802_11_set_beacons(hapd->iface);
 170
 171         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 172         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 173
 174         ieee802_1x_free_station(sta);
 175         wpa_auth_sta_deinit(sta->wpa_sm);
 176         rsn_preauth_free_station(hapd, sta);
 177         radius_client_flush_auth(hapd->radius, sta->addr);
 178
 179         os_free(sta->last_assoc_req);
 180         os_free(sta->challenge);
 181         os_free(sta);
 182 }
 183
 184
 185 void hostapd_free_stas(struct hostapd_data *hapd)
 186 {
 187         struct sta_info *sta, *prev;
 188
 189         sta = hapd->sta_list;
 190
 191         while (sta) {
 192                 prev = sta;
 193                 if (sta->flags & WLAN_STA_AUTH) {
 194                         mlme_deauthenticate_indication(
 195                                 hapd, sta, WLAN_REASON_UNSPECIFIED);
 196                 }
 197                 sta = sta->next;
 198                 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
 199                            MAC2STR(prev->addr));
 200                 ap_free_sta(hapd, prev);
 201         }
 202 }
 203
 204
 205 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
 206 {
 207         struct hostapd_data *hapd = eloop_ctx;
 208         struct sta_info *sta = timeout_ctx;
 209         unsigned long next_time = 0;
 210
 211         if (sta->timeout_next == STA_REMOVE) {
 212                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 213                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 214                                "local deauth request");
 215                 ap_free_sta(hapd, sta);
 216                 return;
 217         }
 218
 219         if ((sta->flags & WLAN_STA_ASSOC) &&
 220             (sta->timeout_next == STA_NULLFUNC ||
 221              sta->timeout_next == STA_DISASSOC)) {
 222                 int inactive_sec;
 223                 wpa_printf(MSG_DEBUG, "Checking STA " MACSTR " inactivity:",
 224                            MAC2STR(sta->addr));
 225                 inactive_sec = hostapd_get_inact_sec(hapd, sta->addr);
 226                 if (inactive_sec == -1) {
 227                         wpa_printf(MSG_DEBUG, "Could not get station info "
 228                                    "from kernel driver for " MACSTR ".",
 229                                    MAC2STR(sta->addr));
 230                 } else if (inactive_sec < hapd->conf->ap_max_inactivity &&
 231                            sta->flags & WLAN_STA_ASSOC) {
 232                         /* station activity detected; reset timeout state */
 233                         wpa_printf(MSG_DEBUG, "  Station has been active");
 234                         sta->timeout_next = STA_NULLFUNC;
 235                         next_time = hapd->conf->ap_max_inactivity -
 236                                 inactive_sec;
 237                 }
 238         }
 239
 240         if ((sta->flags & WLAN_STA_ASSOC) &&
 241             sta->timeout_next == STA_DISASSOC &&
 242             !(sta->flags & WLAN_STA_PENDING_POLL)) {
 243                 wpa_printf(MSG_DEBUG, "  Station has ACKed data poll");
 244                 /* data nullfunc frame poll did not produce TX errors; assume
 245                  * station ACKed it */
 246                 sta->timeout_next = STA_NULLFUNC;
 247                 next_time = hapd->conf->ap_max_inactivity;
 248         }
 249
 250         if (next_time) {
 251                 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
 252                                        sta);
 253                 return;
 254         }
 255
 256         if (sta->timeout_next == STA_NULLFUNC &&
 257             (sta->flags & WLAN_STA_ASSOC)) {
 258                 /* send data frame to poll STA and check whether this frame
 259                  * is ACKed */
 260                 struct ieee80211_hdr hdr;
 261
 262                 wpa_printf(MSG_DEBUG, "  Polling STA with data frame");
 263                 sta->flags |= WLAN_STA_PENDING_POLL;
 264
 265 #ifndef CONFIG_NATIVE_WINDOWS
 266                 /* FIX: WLAN_FC_STYPE_NULLFUNC would be more appropriate, but
 267                  * it is apparently not retried so TX Exc events are not
 268                  * received for it */
 269                 os_memset(&hdr, 0, sizeof(hdr));
 270                 hdr.frame_control =
 271                         IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
 272                 hdr.frame_control |= host_to_le16(BIT(1));
 273                 hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
 274                 os_memcpy(hdr.IEEE80211_DA_FROMDS, sta->addr, ETH_ALEN);
 275                 os_memcpy(hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr,
 276                           ETH_ALEN);
 277                 os_memcpy(hdr.IEEE80211_SA_FROMDS, hapd->own_addr, ETH_ALEN);
 278
 279                 if (hostapd_send_mgmt_frame(hapd, &hdr, sizeof(hdr), 0) < 0)
 280                         perror("ap_handle_timer: send");
 281 #endif /* CONFIG_NATIVE_WINDOWS */
 282         } else if (sta->timeout_next != STA_REMOVE) {
 283                 int deauth = sta->timeout_next == STA_DEAUTH;
 284
 285                 wpa_printf(MSG_DEBUG, "Sending %s info to STA " MACSTR,
 286                            deauth ? "deauthentication" : "disassociation",
 287                            MAC2STR(sta->addr));
 288
 289                 if (deauth) {
 290                         hostapd_sta_deauth(hapd, sta->addr,
 291                                            WLAN_REASON_PREV_AUTH_NOT_VALID);
 292                 } else {
 293                         hostapd_sta_disassoc(
 294                                 hapd, sta->addr,
 295                                 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
 296                 }
 297         }
 298
 299         switch (sta->timeout_next) {
 300         case STA_NULLFUNC:
 301                 sta->timeout_next = STA_DISASSOC;
 302                 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
 303                                        hapd, sta);
 304                 break;
 305         case STA_DISASSOC:
 306                 sta->flags &= ~WLAN_STA_ASSOC;
 307                 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 308                 if (!sta->acct_terminate_cause)
 309                         sta->acct_terminate_cause =
 310                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 311                 accounting_sta_stop(hapd, sta);
 312                 ieee802_1x_free_station(sta);
 313                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 314                                HOSTAPD_LEVEL_INFO, "disassociated due to "
 315                                "inactivity");
 316                 sta->timeout_next = STA_DEAUTH;
 317                 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
 318                                        hapd, sta);
 319                 mlme_disassociate_indication(
 320                         hapd, sta, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
 321                 break;
 322         case STA_DEAUTH:
 323         case STA_REMOVE:
 324                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 325                                HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 326                                "inactivity");
 327                 if (!sta->acct_terminate_cause)
 328                         sta->acct_terminate_cause =
 329                                 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
 330                 mlme_deauthenticate_indication(
 331                         hapd, sta,
 332                         WLAN_REASON_PREV_AUTH_NOT_VALID);
 333                 ap_free_sta(hapd, sta);
 334                 break;
 335         }
 336 }
 337
 338
 339 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
 340 {
 341         struct hostapd_data *hapd = eloop_ctx;
 342         struct sta_info *sta = timeout_ctx;
 343         u8 addr[ETH_ALEN];
 344
 345         if (!(sta->flags & WLAN_STA_AUTH))
 346                 return;
 347
 348         mlme_deauthenticate_indication(hapd, sta,
 349                                        WLAN_REASON_PREV_AUTH_NOT_VALID);
 350         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 351                        HOSTAPD_LEVEL_INFO, "deauthenticated due to "
 352                        "session timeout");
 353         sta->acct_terminate_cause =
 354                 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
 355         os_memcpy(addr, sta->addr, ETH_ALEN);
 356         ap_free_sta(hapd, sta);
 357         hostapd_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
 358 }
 359
 360
 361 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 362                             u32 session_timeout)
 363 {
 364         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 365                        HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
 366                        "seconds", session_timeout);
 367         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 368         eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
 369                                hapd, sta);
 370 }
 371
 372
 373 void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
 374 {
 375         eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
 376 }
 377
 378
 379 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 380 {
 381         struct sta_info *sta;
 382
 383         sta = ap_get_sta(hapd, addr);
 384         if (sta)
 385                 return sta;
 386
 387         wpa_printf(MSG_DEBUG, "  New STA");
 388         if (hapd->num_sta >= hapd->conf->max_num_sta) {
 389                 /* FIX: might try to remove some old STAs first? */
 390                 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
 391                            hapd->num_sta, hapd->conf->max_num_sta);
 392                 return NULL;
 393         }
 394
 395         sta = os_zalloc(sizeof(struct sta_info));
 396         if (sta == NULL) {
 397                 wpa_printf(MSG_ERROR, "malloc failed");
 398                 return NULL;
 399         }
 400         sta->acct_interim_interval = hapd->conf->radius->acct_interim_interval;
 401
 402         /* initialize STA info data */
 403         eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
 404                                ap_handle_timer, hapd, sta);
 405         os_memcpy(sta->addr, addr, ETH_ALEN);
 406         sta->next = hapd->sta_list;
 407         hapd->sta_list = sta;
 408         hapd->num_sta++;
 409         ap_sta_hash_add(hapd, sta);
 410         sta->ssid = &hapd->conf->ssid;
 411
 412         return sta;
 413 }
 414
 415
 416 static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
 417 {
 418         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 419
 420         wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
 421                    MAC2STR(sta->addr));
 422         if (hostapd_sta_remove(hapd, sta->addr) &&
 423             sta->flags & WLAN_STA_ASSOC) {
 424                 wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
 425                            " from kernel driver.", MAC2STR(sta->addr));
 426                 return -1;
 427         }
 428         return 0;
 429 }
 430
 431
 432 static int ap_sta_in_other_bss(struct hostapd_data *hapd,
 433                                struct sta_info *sta, u32 flags)
 434 {
 435         struct hostapd_iface *iface = hapd->iface;
 436         size_t i;
 437
 438         for (i = 0; i < iface->num_bss; i++) {
 439                 struct hostapd_data *bss = iface->bss[i];
 440                 struct sta_info *sta2;
 441                 /* bss should always be set during operation, but it may be
 442                  * NULL during reconfiguration. Assume the STA is not
 443                  * associated to another BSS in that case to avoid NULL pointer
 444                  * dereferences. */
 445                 if (bss == hapd || bss == NULL)
 446                         continue;
 447                 sta2 = ap_get_sta(bss, sta->addr);
 448                 if (sta2 && ((sta2->flags & flags) == flags))
 449                         return 1;
 450         }
 451
 452         return 0;
 453 }
 454
 455
 456 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 457                          u16 reason)
 458 {
 459         wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
 460                    hapd->conf->iface, MAC2STR(sta->addr));
 461         sta->flags &= ~WLAN_STA_ASSOC;
 462         if (!ap_sta_in_other_bss(hapd, sta, WLAN_STA_ASSOC))
 463                 ap_sta_remove(hapd, sta);
 464         sta->timeout_next = STA_DEAUTH;
 465         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 466         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
 467                                ap_handle_timer, hapd, sta);
 468         accounting_sta_stop(hapd, sta);
 469         ieee802_1x_free_station(sta);
 470
 471         mlme_disassociate_indication(hapd, sta, reason);
 472 }
 473
 474
 475 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 476                            u16 reason)
 477 {
 478         wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
 479                    hapd->conf->iface, MAC2STR(sta->addr));
 480         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
 481         if (!ap_sta_in_other_bss(hapd, sta, WLAN_STA_ASSOC))
 482                 ap_sta_remove(hapd, sta);
 483         sta->timeout_next = STA_REMOVE;
 484         eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 485         eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
 486                                ap_handle_timer, hapd, sta);
 487         accounting_sta_stop(hapd, sta);
 488         ieee802_1x_free_station(sta);
 489
 490         mlme_deauthenticate_indication(hapd, sta, reason);
 491 }
 492
 493
 494 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 495                      int old_vlanid)
 496 {
 497         const char *iface;
 498         struct hostapd_vlan *vlan = NULL;
 499
 500         /*
 501          * Do not proceed furthur if the vlan id remains same. We do not want
 502          * duplicate dynamic vlan entries.
 503          */
 504         if (sta->vlan_id == old_vlanid)
 505                 return 0;
 506
 507         /*
 508          * During 1x reauth, if the vlan id changes, then remove the old id and
 509          * proceed furthur to add the new one.
 510          */
 511         if (old_vlanid > 0)
 512                 vlan_remove_dynamic(hapd, old_vlanid);
 513
 514         iface = hapd->conf->iface;
 515         if (sta->ssid->vlan[0])
 516                 iface = sta->ssid->vlan;
 517
 518         if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
 519                 sta->vlan_id = 0;
 520         else if (sta->vlan_id > 0) {
 521                 vlan = hapd->conf->vlan;
 522                 while (vlan) {
 523                         if (vlan->vlan_id == sta->vlan_id ||
 524                             vlan->vlan_id == VLAN_ID_WILDCARD) {
 525                                 iface = vlan->ifname;
 526                                 break;
 527                         }
 528                         vlan = vlan->next;
 529                 }
 530         }
 531
 532         if (sta->vlan_id > 0 && vlan == NULL) {
 533                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 534                                HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
 535                                "binding station to (vlan_id=%d)",
 536                                sta->vlan_id);
 537                 return -1;
 538         } else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
 539                 vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
 540                 if (vlan == NULL) {
 541                         hostapd_logger(hapd, sta->addr,
 542                                        HOSTAPD_MODULE_IEEE80211,
 543                                        HOSTAPD_LEVEL_DEBUG, "could not add "
 544                                        "dynamic VLAN interface for vlan_id=%d",
 545                                        sta->vlan_id);
 546                         return -1;
 547                 }
 548
 549                 iface = vlan->ifname;
 550                 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
 551                         hostapd_logger(hapd, sta->addr,
 552                                        HOSTAPD_MODULE_IEEE80211,
 553                                        HOSTAPD_LEVEL_DEBUG, "could not "
 554                                        "configure encryption for dynamic VLAN "
 555                                        "interface for vlan_id=%d",
 556                                        sta->vlan_id);
 557                 }
 558
 559                 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 560                                HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
 561                                "interface '%s'", iface);
 562         } else if (vlan && vlan->vlan_id == sta->vlan_id) {
 563                 if (sta->vlan_id > 0) {
 564                         vlan->dynamic_vlan++;
 565                         hostapd_logger(hapd, sta->addr,
 566                                        HOSTAPD_MODULE_IEEE80211,
 567                                        HOSTAPD_LEVEL_DEBUG, "updated existing "
 568                                        "dynamic VLAN interface '%s'", iface);
 569                 }
 570
 571                 /*
 572                  * Update encryption configuration for statically generated
 573                  * VLAN interface. This is only used for static WEP
 574                  * configuration for the case where hostapd did not yet know
 575                  * which keys are to be used when the interface was added.
 576                  */
 577                 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
 578                         hostapd_logger(hapd, sta->addr,
 579                                        HOSTAPD_MODULE_IEEE80211,
 580                                        HOSTAPD_LEVEL_DEBUG, "could not "
 581                                        "configure encryption for VLAN "
 582                                        "interface for vlan_id=%d",
 583                                        sta->vlan_id);
 584                 }
 585         }
 586
 587         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 588                        HOSTAPD_LEVEL_DEBUG, "binding station to interface "
 589                        "'%s'", iface);
 590
 591         if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
 592                 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
 593
 594         return hostapd_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 595 }