blob: 8ada121817a83814a4bf86d464da8d41de1d6c4e [file] [log] [blame]
/*
* hostapd / Station table
* Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
#include "common/sae.h"
#include "radius/radius.h"
#include "radius/radius_client.h"
#include "drivers/driver.h"
#include "p2p/p2p.h"
#include "hostapd.h"
#include "accounting.h"
#include "ieee802_1x.h"
#include "ieee802_11.h"
#include "ieee802_11_auth.h"
#include "wpa_auth.h"
#include "preauth_auth.h"
#include "ap_config.h"
#include "beacon.h"
#include "ap_mlme.h"
#include "vlan_init.h"
#include "p2p_hostapd.h"
#include "ap_drv_ops.h"
#include "gas_serv.h"
#include "sta_info.h"
static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
struct sta_info *sta);
static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
#ifdef CONFIG_IEEE80211W
static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
#endif /* CONFIG_IEEE80211W */
static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
int ap_for_each_sta(struct hostapd_data *hapd,
int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
void *ctx),
void *ctx)
{
struct sta_info *sta;
for (sta = hapd->sta_list; sta; sta = sta->next) {
if (cb(hapd, sta, ctx))
return 1;
}
return 0;
}
struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
{
struct sta_info *s;
s = hapd->sta_hash[STA_HASH(sta)];
while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
s = s->hnext;
return s;
}
static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
{
struct sta_info *tmp;
if (hapd->sta_list == sta) {
hapd->sta_list = sta->next;
return;
}
tmp = hapd->sta_list;
while (tmp != NULL && tmp->next != sta)
tmp = tmp->next;
if (tmp == NULL) {
wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
"list.", MAC2STR(sta->addr));
} else
tmp->next = sta->next;
}
void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
{
sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
hapd->sta_hash[STA_HASH(sta->addr)] = sta;
}
static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
{
struct sta_info *s;
s = hapd->sta_hash[STA_HASH(sta->addr)];
if (s == NULL) return;
if (os_memcmp(s->addr, sta->addr, 6) == 0) {
hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
return;
}
while (s->hnext != NULL &&
os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
s = s->hnext;
if (s->hnext != NULL)
s->hnext = s->hnext->hnext;
else
wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
" from hash table", MAC2STR(sta->addr));
}
void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
int set_beacon = 0;
accounting_sta_stop(hapd, sta);
/* just in case */
ap_sta_set_authorized(hapd, sta, 0);
if (sta->flags & WLAN_STA_WDS)
hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 0);
if (!(sta->flags & WLAN_STA_PREAUTH))
hostapd_drv_sta_remove(hapd, sta->addr);
ap_sta_hash_del(hapd, sta);
ap_sta_list_del(hapd, sta);
if (sta->aid > 0)
hapd->sta_aid[(sta->aid - 1) / 32] &=
~BIT((sta->aid - 1) % 32);
hapd->num_sta--;
if (sta->nonerp_set) {
sta->nonerp_set = 0;
hapd->iface->num_sta_non_erp--;
if (hapd->iface->num_sta_non_erp == 0)
set_beacon++;
}
if (sta->no_short_slot_time_set) {
sta->no_short_slot_time_set = 0;
hapd->iface->num_sta_no_short_slot_time--;
if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
&& hapd->iface->num_sta_no_short_slot_time == 0)
set_beacon++;
}
if (sta->no_short_preamble_set) {
sta->no_short_preamble_set = 0;
hapd->iface->num_sta_no_short_preamble--;
if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
&& hapd->iface->num_sta_no_short_preamble == 0)
set_beacon++;
}
if (sta->no_ht_gf_set) {
sta->no_ht_gf_set = 0;
hapd->iface->num_sta_ht_no_gf--;
}
if (sta->no_ht_set) {
sta->no_ht_set = 0;
hapd->iface->num_sta_no_ht--;
}
if (sta->ht_20mhz_set) {
sta->ht_20mhz_set = 0;
hapd->iface->num_sta_ht_20mhz--;
}
#ifdef CONFIG_P2P
if (sta->no_p2p_set) {
sta->no_p2p_set = 0;
hapd->num_sta_no_p2p--;
if (hapd->num_sta_no_p2p == 0)
hostapd_p2p_non_p2p_sta_disconnected(hapd);
}
#endif /* CONFIG_P2P */
#if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
if (hostapd_ht_operation_update(hapd->iface) > 0)
set_beacon++;
#endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
if (set_beacon)
ieee802_11_set_beacons(hapd->iface);
wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
__func__, MAC2STR(sta->addr));
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
ieee802_1x_free_station(sta);
wpa_auth_sta_deinit(sta->wpa_sm);
rsn_preauth_free_station(hapd, sta);
#ifndef CONFIG_NO_RADIUS
radius_client_flush_auth(hapd->radius, sta->addr);
#endif /* CONFIG_NO_RADIUS */
os_free(sta->last_assoc_req);
os_free(sta->challenge);
#ifdef CONFIG_IEEE80211W
os_free(sta->sa_query_trans_id);
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_P2P
p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
#endif /* CONFIG_P2P */
#ifdef CONFIG_INTERWORKING
if (sta->gas_dialog) {
int i;
for (i = 0; i < GAS_DIALOG_MAX; i++)
gas_serv_dialog_clear(&sta->gas_dialog[i]);
os_free(sta->gas_dialog);
}
#endif /* CONFIG_INTERWORKING */
wpabuf_free(sta->wps_ie);
wpabuf_free(sta->p2p_ie);
wpabuf_free(sta->hs20_ie);
os_free(sta->ht_capabilities);
hostapd_free_psk_list(sta->psk);
os_free(sta->identity);
os_free(sta->radius_cui);
#ifdef CONFIG_SAE
sae_clear_data(sta->sae);
os_free(sta->sae);
#endif /* CONFIG_SAE */
os_free(sta);
}
void hostapd_free_stas(struct hostapd_data *hapd)
{
struct sta_info *sta, *prev;
sta = hapd->sta_list;
while (sta) {
prev = sta;
if (sta->flags & WLAN_STA_AUTH) {
mlme_deauthenticate_indication(
hapd, sta, WLAN_REASON_UNSPECIFIED);
}
sta = sta->next;
wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
MAC2STR(prev->addr));
ap_free_sta(hapd, prev);
}
}
/**
* ap_handle_timer - Per STA timer handler
* @eloop_ctx: struct hostapd_data *
* @timeout_ctx: struct sta_info *
*
* This function is called to check station activity and to remove inactive
* stations.
*/
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
__func__, MAC2STR(sta->addr), sta->flags,
sta->timeout_next);
if (sta->timeout_next == STA_REMOVE) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"local deauth request");
ap_free_sta(hapd, sta);
return;
}
if ((sta->flags & WLAN_STA_ASSOC) &&
(sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC)) {
int inactive_sec;
/*
* Add random value to timeout so that we don't end up bouncing
* all stations at the same time if we have lots of associated
* stations that are idle (but keep re-associating).
*/
int fuzz = os_random() % 20;
inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Check inactivity: Could not "
"get station info from kernel driver for "
MACSTR, MAC2STR(sta->addr));
/*
* The driver may not support this functionality.
* Anyway, try again after the next inactivity timeout,
* but do not disconnect the station now.
*/
next_time = hapd->conf->ap_max_inactivity + fuzz;
} else if (inactive_sec < hapd->conf->ap_max_inactivity &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been active %is ago",
MAC2STR(sta->addr), inactive_sec);
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity + fuzz -
inactive_sec;
} else {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been "
"inactive too long: %d sec, max allowed: %d",
MAC2STR(sta->addr), inactive_sec,
hapd->conf->ap_max_inactivity);
if (hapd->conf->skip_inactivity_poll)
sta->timeout_next = STA_DISASSOC;
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL) &&
!hapd->conf->skip_inactivity_poll) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
" has ACKed data poll", MAC2STR(sta->addr));
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity;
}
if (next_time) {
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%lu seconds)",
__func__, MAC2STR(sta->addr), next_time);
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG, " Polling STA");
sta->flags |= WLAN_STA_PENDING_POLL;
hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
sta->flags & WLAN_STA_WMM);
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"Timeout, sending %s info to STA " MACSTR,
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_drv_sta_deauth(
hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
hostapd_drv_sta_disassoc(
hapd, sta->addr,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
__func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
ap_sta_set_authorized(hapd, sta, 0);
sta->flags &= ~WLAN_STA_ASSOC;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated due to "
"inactivity");
sta->timeout_next = STA_DEAUTH;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
__func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
mlme_disassociate_indication(
hapd, sta, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity (timer DEAUTH/REMOVE)");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
mlme_deauthenticate_indication(
hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
ap_free_sta(hapd, sta);
break;
}
}
static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
u8 addr[ETH_ALEN];
if (!(sta->flags & WLAN_STA_AUTH)) {
if (sta->flags & WLAN_STA_GAS) {
wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
"entry " MACSTR, MAC2STR(sta->addr));
ap_free_sta(hapd, sta);
}
return;
}
mlme_deauthenticate_indication(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"session timeout");
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
os_memcpy(addr, sta->addr, ETH_ALEN);
ap_free_sta(hapd, sta);
hostapd_drv_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
}
void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
u32 session_timeout)
{
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
"seconds", session_timeout);
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
hapd, sta);
}
void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
{
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
}
struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta;
sta = ap_get_sta(hapd, addr);
if (sta)
return sta;
wpa_printf(MSG_DEBUG, " New STA");
if (hapd->num_sta >= hapd->conf->max_num_sta) {
/* FIX: might try to remove some old STAs first? */
wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
hapd->num_sta, hapd->conf->max_num_sta);
return NULL;
}
sta = os_zalloc(sizeof(struct sta_info));
if (sta == NULL) {
wpa_printf(MSG_ERROR, "malloc failed");
return NULL;
}
sta->acct_interim_interval = hapd->conf->acct_interim_interval;
accounting_sta_get_id(hapd, sta);
/* initialize STA info data */
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - ap_max_inactivity)",
__func__, MAC2STR(addr),
hapd->conf->ap_max_inactivity);
eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
ap_handle_timer, hapd, sta);
os_memcpy(sta->addr, addr, ETH_ALEN);
sta->next = hapd->sta_list;
hapd->sta_list = sta;
hapd->num_sta++;
ap_sta_hash_add(hapd, sta);
sta->ssid = &hapd->conf->ssid;
ap_sta_remove_in_other_bss(hapd, sta);
return sta;
}
static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
{
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
MAC2STR(sta->addr));
if (hostapd_drv_sta_remove(hapd, sta->addr) &&
sta->flags & WLAN_STA_ASSOC) {
wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
" from kernel driver.", MAC2STR(sta->addr));
return -1;
}
return 0;
}
static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
struct sta_info *sta)
{
struct hostapd_iface *iface = hapd->iface;
size_t i;
for (i = 0; i < iface->num_bss; i++) {
struct hostapd_data *bss = iface->bss[i];
struct sta_info *sta2;
/* bss should always be set during operation, but it may be
* NULL during reconfiguration. Assume the STA is not
* associated to another BSS in that case to avoid NULL pointer
* dereferences. */
if (bss == hapd || bss == NULL)
continue;
sta2 = ap_get_sta(bss, sta->addr);
if (!sta2)
continue;
ap_sta_disconnect(bss, sta2, sta2->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
}
}
static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
ap_sta_remove(hapd, sta);
mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
}
void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
u16 reason)
{
wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
sta->flags &= ~WLAN_STA_ASSOC;
ap_sta_set_authorized(hapd, sta, 0);
sta->timeout_next = STA_DEAUTH;
wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
"for " MACSTR " (%d seconds - "
"AP_MAX_INACTIVITY_AFTER_DISASSOC)",
__func__, MAC2STR(sta->addr),
AP_MAX_INACTIVITY_AFTER_DISASSOC);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
ap_handle_timer, hapd, sta);
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
sta->disassoc_reason = reason;
sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_disassoc_cb_timeout, hapd, sta);
}
static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
ap_sta_remove(hapd, sta);
mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
}
void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
u16 reason)
{
wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
ap_sta_set_authorized(hapd, sta, 0);
sta->timeout_next = STA_REMOVE;
wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
"for " MACSTR " (%d seconds - "
"AP_MAX_INACTIVITY_AFTER_DEAUTH)",
__func__, MAC2STR(sta->addr),
AP_MAX_INACTIVITY_AFTER_DEAUTH);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
ap_handle_timer, hapd, sta);
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
sta->deauth_reason = reason;
sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_deauth_cb_timeout, hapd, sta);
}
#ifdef CONFIG_WPS
int ap_sta_wps_cancel(struct hostapd_data *hapd,
struct sta_info *sta, void *ctx)
{
if (sta && (sta->flags & WLAN_STA_WPS)) {
ap_sta_deauthenticate(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
__func__, MAC2STR(sta->addr));
return 1;
}
return 0;
}
#endif /* CONFIG_WPS */
int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
int old_vlanid)
{
#ifndef CONFIG_NO_VLAN
const char *iface;
struct hostapd_vlan *vlan = NULL;
int ret;
/*
* Do not proceed furthur if the vlan id remains same. We do not want
* duplicate dynamic vlan entries.
*/
if (sta->vlan_id == old_vlanid)
return 0;
/*
* During 1x reauth, if the vlan id changes, then remove the old id and
* proceed furthur to add the new one.
*/
if (old_vlanid > 0)
vlan_remove_dynamic(hapd, old_vlanid);
iface = hapd->conf->iface;
if (sta->ssid->vlan[0])
iface = sta->ssid->vlan;
if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
sta->vlan_id = 0;
else if (sta->vlan_id > 0) {
vlan = hapd->conf->vlan;
while (vlan) {
if (vlan->vlan_id == sta->vlan_id ||
vlan->vlan_id == VLAN_ID_WILDCARD) {
iface = vlan->ifname;
break;
}
vlan = vlan->next;
}
}
if (sta->vlan_id > 0 && vlan == NULL) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
"binding station to (vlan_id=%d)",
sta->vlan_id);
return -1;
} else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
if (vlan == NULL) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not add "
"dynamic VLAN interface for vlan_id=%d",
sta->vlan_id);
return -1;
}
iface = vlan->ifname;
if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for dynamic VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
"interface '%s'", iface);
} else if (vlan && vlan->vlan_id == sta->vlan_id) {
if (sta->vlan_id > 0) {
vlan->dynamic_vlan++;
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "updated existing "
"dynamic VLAN interface '%s'", iface);
}
/*
* Update encryption configuration for statically generated
* VLAN interface. This is only used for static WEP
* configuration for the case where hostapd did not yet know
* which keys are to be used when the interface was added.
*/
if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "binding station to interface "
"'%s'", iface);
if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
if (ret < 0) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
"entry to vlan_id=%d", sta->vlan_id);
}
return ret;
#else /* CONFIG_NO_VLAN */
return 0;
#endif /* CONFIG_NO_VLAN */
}
#ifdef CONFIG_IEEE80211W
int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
{
u32 tu;
struct os_time now, passed;
os_get_time(&now);
os_time_sub(&now, &sta->sa_query_start, &passed);
tu = (passed.sec * 1000000 + passed.usec) / 1024;
if (hapd->conf->assoc_sa_query_max_timeout < tu) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"association SA Query timed out");
sta->sa_query_timed_out = 1;
os_free(sta->sa_query_trans_id);
sta->sa_query_trans_id = NULL;
sta->sa_query_count = 0;
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
return 1;
}
return 0;
}
static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned int timeout, sec, usec;
u8 *trans_id, *nbuf;
if (sta->sa_query_count > 0 &&
ap_check_sa_query_timeout(hapd, sta))
return;
nbuf = os_realloc_array(sta->sa_query_trans_id,
sta->sa_query_count + 1,
WLAN_SA_QUERY_TR_ID_LEN);
if (nbuf == NULL)
return;
if (sta->sa_query_count == 0) {
/* Starting a new SA Query procedure */
os_get_time(&sta->sa_query_start);
}
trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
sta->sa_query_trans_id = nbuf;
sta->sa_query_count++;
os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
timeout = hapd->conf->assoc_sa_query_retry_timeout;
sec = ((timeout / 1000) * 1024) / 1000;
usec = (timeout % 1000) * 1024;
eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"association SA Query attempt %d", sta->sa_query_count);
ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
}
void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
{
ap_sa_query_timer(hapd, sta);
}
void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
{
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
os_free(sta->sa_query_trans_id);
sta->sa_query_trans_id = NULL;
sta->sa_query_count = 0;
}
#endif /* CONFIG_IEEE80211W */
void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
int authorized)
{
const u8 *dev_addr = NULL;
#ifdef CONFIG_P2P
u8 addr[ETH_ALEN];
#endif /* CONFIG_P2P */
if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
return;
#ifdef CONFIG_P2P
if (hapd->p2p_group == NULL) {
if (sta->p2p_ie != NULL &&
p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
dev_addr = addr;
} else
dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
#endif /* CONFIG_P2P */
if (authorized) {
if (dev_addr)
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED
MACSTR " p2p_dev_addr=" MACSTR,
MAC2STR(sta->addr), MAC2STR(dev_addr));
else
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED
MACSTR, MAC2STR(sta->addr));
if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx && dev_addr)
wpa_msg(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_CONNECTED MACSTR " p2p_dev_addr="
MACSTR,
MAC2STR(sta->addr), MAC2STR(dev_addr));
else if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx)
wpa_msg(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
sta->flags |= WLAN_STA_AUTHORIZED;
} else {
if (dev_addr)
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED
MACSTR " p2p_dev_addr=" MACSTR,
MAC2STR(sta->addr), MAC2STR(dev_addr));
else
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED
MACSTR, MAC2STR(sta->addr));
if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx && dev_addr)
wpa_msg(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_DISCONNECTED MACSTR " p2p_dev_addr="
MACSTR, MAC2STR(sta->addr), MAC2STR(dev_addr));
else if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx)
wpa_msg(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_DISCONNECTED MACSTR,
MAC2STR(sta->addr));
sta->flags &= ~WLAN_STA_AUTHORIZED;
}
if (hapd->sta_authorized_cb)
hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
sta->addr, authorized, dev_addr);
}
void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *addr, u16 reason)
{
if (sta == NULL && addr)
sta = ap_get_sta(hapd, addr);
if (addr)
hostapd_drv_sta_deauth(hapd, addr, reason);
if (sta == NULL)
return;
ap_sta_set_authorized(hapd, sta, 0);
wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
"for " MACSTR " (%d seconds - "
"AP_MAX_INACTIVITY_AFTER_DEAUTH)",
__func__, MAC2STR(sta->addr),
AP_MAX_INACTIVITY_AFTER_DEAUTH);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
ap_handle_timer, hapd, sta);
sta->timeout_next = STA_REMOVE;
sta->deauth_reason = reason;
sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_deauth_cb_timeout, hapd, sta);
}
void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
{
if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
return;
}
sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
ap_sta_deauth_cb_timeout(hapd, sta);
}
void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
{
if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
return;
}
sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
ap_sta_disassoc_cb_timeout(hapd, sta);
}