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);
}
void ap_free_sta(hostapd *hapd, struct sta_info *sta)
{
accounting_sta_stop(hapd, sta);
if (!(sta->flags & WLAN_STA_PREAUTH))
hostapd_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] = NULL;
hapd->num_sta--;
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
ieee802_1x_free_station(sta);
wpa_free_station(sta);
radius_client_flush_auth(hapd->radius, sta->addr);
if (sta->last_assoc_req)
free(sta->last_assoc_req);
free(sta->challenge);
free(sta->wpa_ie);
free(sta);
}
void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
int set_beacon = 0;
accounting_sta_stop(hapd, sta);
if (!ap_sta_in_other_bss(hapd, sta, WLAN_STA_ASSOC) &&
!(sta->flags & WLAN_STA_PREAUTH))
hostapd_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] = NULL;
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 (set_beacon)
ieee802_11_set_beacons(hapd->iface);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
ieee802_1x_free_station(sta);
wpa_auth_sta_deinit(sta->wpa_sm);
rsn_preauth_free_station(hapd, sta);
radius_client_flush_auth(hapd->radius, sta->addr);
if (sta->last_assoc_req)
free(sta->last_assoc_req);
free(sta->challenge);
free(sta);
}
static int test_driver_new_sta(struct test_driver_data *drv,
struct test_driver_bss *bss, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct hostapd_data *hapd;
struct sta_info *sta;
int new_assoc, res;
hapd = test_driver_get_hapd(drv, bss);
if (hapd == NULL)
return -1;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
accounting_sta_get_id(hapd, sta);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
printf("test_driver: no IE from STA\n");
return -1;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
printf("test_driver: Failed to initialize WPA state "
"machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
return -1;
}
}
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
static void handle_disassoc(hostapd *hapd, struct ieee80211_mgmt *mgmt,
size_t len)
{
struct sta_info *sta;
if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) {
printf("handle_disassoc - too short payload (len=%lu)\n",
(unsigned long) len);
return;
}
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"disassocation: STA=" MACSTR " reason_code=%d\n",
MAC2STR(mgmt->sa),
le_to_host16(mgmt->u.disassoc.reason_code));
if (hapd->assoc_ap_state != DO_NOT_ASSOC &&
memcmp(mgmt->sa, hapd->conf->assoc_ap_addr, ETH_ALEN) == 0) {
printf("Assoc AP " MACSTR " sent disassociation "
"(reason_code=%d) - try to authenticate\n",
MAC2STR(hapd->conf->assoc_ap_addr),
le_to_host16(mgmt->u.disassoc.reason_code));
hapd->assoc_ap_state = AUTHENTICATE;
ieee802_11_sta_authenticate(hapd, NULL);
eloop_register_timeout(0, 500000, ieee802_11_sta_authenticate,
hapd, NULL);
return;
}
sta = ap_get_sta(hapd, mgmt->sa);
if (sta == NULL) {
printf("Station " MACSTR " trying to disassociate, but it "
"is not associated.\n", MAC2STR(mgmt->sa));
return;
}
sta->flags &= ~WLAN_STA_ASSOC;
wpa_sm_event(hapd, sta, WPA_DISASSOC);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated");
sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
ieee802_1x_set_port_enabled(hapd, sta, 0);
/* Stop Accounting and IEEE 802.1X sessions, but leave the STA
* authenticated. */
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hostapd_sta_remove(hapd, sta->addr);
if (sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC) {
sta->timeout_next = STA_DEAUTH;
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
}
}
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_remove(hapd, sta);
sta->timeout_next = STA_REMOVE;
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);*/
mlme_deauthenticate_indication(hapd, sta, reason);
}
static void handle_disassoc(struct hostapd_data *hapd,
const struct ieee80211_mgmt *mgmt, size_t len)
{
struct sta_info *sta;
if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) {
printf("handle_disassoc - too short payload (len=%lu)\n",
(unsigned long) len);
return;
}
wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d",
MAC2STR(mgmt->sa),
le_to_host16(mgmt->u.disassoc.reason_code));
sta = ap_get_sta(hapd, mgmt->sa);
if (sta == NULL) {
printf("Station " MACSTR " trying to disassociate, but it "
"is not associated.\n", MAC2STR(mgmt->sa));
return;
}
sta->flags &= ~WLAN_STA_ASSOC;
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR,
MAC2STR(sta->addr));
wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated");
sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
/* Stop Accounting and IEEE 802.1X sessions, but leave the STA
* authenticated. */
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hapd->drv.sta_remove(hapd, sta->addr);
if (sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC) {
sta->timeout_next = STA_DEAUTH;
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
}
mlme_disassociate_indication(
hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code));
}
void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
u16 reason)
{
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "%s: deauthenticate STA " MACSTR
"\n", hapd->conf->iface, MAC2STR(sta->addr));
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
if (!ap_sta_in_other_bss(hapd, sta, WLAN_STA_ASSOC))
ap_sta_remove(hapd, sta);
sta->timeout_next = STA_REMOVE;
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);
mlme_deauthenticate_indication(hapd, sta, reason);
}
static int
madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
{
struct hostapd_data *hapd = drv->hapd;
struct sta_info *sta;
int new_assoc;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
/* Cached accounting data is not valid anymore. */
memset(drv->acct_mac, 0, ETH_ALEN);
memset(&drv->acct_data, 0, sizeof(drv->acct_data));
}
accounting_sta_get_id(hapd, sta);
if (hapd->conf->wpa) {
if (madwifi_process_wpa_ie(drv, sta))
return -1;
}
/*
* Now that the internal station state is setup
* kick the authenticator into action.
*/
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
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;
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);
}
/**
* 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;
}
}
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);
os_free(sta->ht_capabilities);
os_free(sta->psk);
os_free(sta->identity);
os_free(sta->radius_cui);
os_free(sta);
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
size_t len = 0;
#endif /* CONFIG_IEEE80211R */
int resp = WLAN_STATUS_SUCCESS;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
}
#endif /* CONFIG_P2P */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_PAIRWISE)
resp = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_AKMP)
resp = WLAN_REASON_AKMP_NOT_VALID;
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
resp = WLAN_REASON_INVALID_IE;
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
#endif /* CONFIG_IEEE80211W */
else
resp = WLAN_REASON_INVALID_IE;
goto fail;
}
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
resp = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (resp != WLAN_STATUS_SUCCESS)
goto fail;
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
struct wpabuf *wps;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
#ifdef CONFIG_WPS_STRICT
if (ie) {
if (wps && wps_validate_assoc_req(wps) < 0) {
resp = WLAN_REASON_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
}
#endif /* CONFIG_WPS_STRICT */
if (ie && ielen > 4 && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
if (wps && wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
}
skip_wpa_check:
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
len = p - buf;
hostapd_sta_assoc(hapd, addr, reassoc, 0, buf, len);
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, resp, buf, len);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
static int test_driver_new_sta(struct test_driver_data *drv,
struct test_driver_bss *bss, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct hostapd_data *hapd;
struct sta_info *sta;
int new_assoc, res;
hapd = test_driver_get_hapd(drv, bss);
if (hapd == NULL)
return -1;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
printf("test_driver: no IE from STA\n");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
printf("test_driver: Failed to initialize WPA state "
"machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
return -1;
}
}
skip_wpa_check:
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
/**
* 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;
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;
inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
wpa_msg(hapd, MSG_DEBUG, "Check inactivity: Could not "
"get station info rom kernel driver for "
MACSTR, MAC2STR(sta->addr));
} else if (inactive_sec < hapd->conf->ap_max_inactivity &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
wpa_msg(hapd, 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 -
inactive_sec;
} else {
wpa_msg(hapd, 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 ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL)) {
wpa_msg(hapd, 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) {
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
#ifndef CONFIG_NATIVE_WINDOWS
/* send data frame to poll STA and check whether this frame
* is ACKed */
struct {
struct ieee80211_hdr hdr;
u16 qos_ctl;
} STRUCT_PACKED nulldata;
int size = sizeof(struct ieee80211_hdr);
wpa_printf(MSG_DEBUG, " Polling STA with data frame");
sta->flags |= WLAN_STA_PENDING_POLL;
os_memset(&nulldata, 0, sizeof(nulldata));
if (hapd->driver &&
os_strcmp(hapd->driver->name, "hostap") == 0) {
/*
* WLAN_FC_STYPE_NULLFUNC would be more appropriate,
* but it is apparently not retried so TX Exc events
* are not received for it.
*/
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_DATA);
} else {
if (sta->flags & WLAN_STA_WMM) {
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_QOS_NULL);
size = sizeof(nulldata);
} else
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_NULLFUNC);
}
nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, sta->addr,
ETH_ALEN);
os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr,
ETH_ALEN);
os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, hapd->own_addr,
ETH_ALEN);
if (hostapd_drv_send_mlme(hapd, &nulldata, size) < 0)
perror("ap_handle_timer: send");
#endif /* CONFIG_NATIVE_WINDOWS */
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
wpa_printf(MSG_DEBUG, "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;
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
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;
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");
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;
}
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct sta_info *sta;
int new_assoc, res;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
int resp;
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_PAIRWISE)
resp = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_AKMP)
resp = WLAN_REASON_AKMP_NOT_VALID;
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
resp = WLAN_REASON_INVALID_IE;
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
#endif /* CONFIG_IEEE80211W */
else
resp = WLAN_REASON_INVALID_IE;
hapd->drv.sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
} else if (hapd->conf->wps_state) {
if (ie && ielen > 4 && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
}
skip_wpa_check:
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#if defined(CONFIG_IEEE80211R) || defined(CONFIG_IEEE80211W)
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
const u8 *p2p_dev_addr = NULL;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG,
"hostapd_notif_assoc: Skip event with no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
#ifdef CONFIG_HS20
} else if (elems.osen) {
ie = elems.osen - 2;
ielen = elems.osen_len + 2;
wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
#endif /* CONFIG_HS20 */
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG,
"STA did not include WPS/RSN/WPA IE in (Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
ap_sta_no_session_timeout(hapd, sta);
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
/*
* ACL configurations to the drivers (implementing AP SME and ACL
* offload) without hostapd's knowledge, can result in a disconnection
* though the driver accepts the connection. Skip the hostapd check for
* ACL if the driver supports ACL offload to avoid potentially
* conflicting ACL rules.
*/
if (hapd->iface->drv_max_acl_mac_addrs == 0 &&
hostapd_check_acl(hapd, addr, NULL) != HOSTAPD_ACL_ACCEPT) {
wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
MAC2STR(addr));
reason = WLAN_REASON_UNSPECIFIED;
goto fail;
}
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
if (sta->p2p_ie)
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_IEEE80211N
#ifdef NEED_AP_MLME
if (elems.ht_capabilities &&
(hapd->iface->conf->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
struct ieee80211_ht_capabilities *ht_cap =
(struct ieee80211_ht_capabilities *)
elems.ht_capabilities;
if (le_to_host16(ht_cap->ht_capabilities_info) &
HT_CAP_INFO_40MHZ_INTOLERANT)
ht40_intolerant_add(hapd->iface, sta);
}
#endif /* NEED_AP_MLME */
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_INTERWORKING
if (elems.ext_capab && elems.ext_capab_len > 4) {
if (elems.ext_capab[4] & 0x01)
sta->qos_map_enabled = 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_FST
wpabuf_free(sta->mb_ies);
if (hapd->iface->fst)
sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
else
sta->mb_ies = NULL;
#endif /* CONFIG_FST */
mbo_ap_check_sta_assoc(hapd, sta, &elems);
ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes,
elems.supp_op_classes_len);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG,
"STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG,
"WPS: STA supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr,
p2p_dev_addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR,
"Failed to initialize WPA state machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG,
"WPA/RSN information element rejected? (res %u)",
res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG,
"WPS: STA supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
#ifdef CONFIG_HS20
} else if (hapd->conf->osen) {
if (elems.osen == NULL) {
hostapd_logger(
hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"No HS 2.0 OSEN element in association request");
return WLAN_STATUS_INVALID_IE;
}
wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr, NULL);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_WARNING,
"Failed to initialize WPA state machine");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
elems.osen - 2, elems.osen_len + 2) < 0)
return WLAN_STATUS_INVALID_IE;
#endif /* CONFIG_HS20 */
}
#ifdef CONFIG_MBO
if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) &&
elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) &&
hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
wpa_printf(MSG_INFO,
"MBO: Reject WPA2 association without PMF");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
#endif /* CONFIG_MBO */
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
if (sta->auth_alg == WLAN_AUTH_FT)
ap_sta_set_authorized(hapd, sta, 1);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
hostapd_set_sta_flags(hapd, sta);
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
static void handle_assoc_cb(struct hostapd_data *hapd,
const struct ieee80211_mgmt *mgmt,
size_t len, int reassoc, int ok)
{
u16 status;
struct sta_info *sta;
int new_assoc = 1;
struct ieee80211_ht_capabilities ht_cap;
if (!ok) {
hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"did not acknowledge association response");
return;
}
if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) :
sizeof(mgmt->u.assoc_resp))) {
printf("handle_assoc_cb(reassoc=%d) - too short payload "
"(len=%lu)\n", reassoc, (unsigned long) len);
return;
}
if (reassoc)
status = le_to_host16(mgmt->u.reassoc_resp.status_code);
else
status = le_to_host16(mgmt->u.assoc_resp.status_code);
sta = ap_get_sta(hapd, mgmt->da);
if (!sta) {
printf("handle_assoc_cb: STA " MACSTR " not found\n",
MAC2STR(mgmt->da));
return;
}
if (status != WLAN_STATUS_SUCCESS)
goto fail;
/* Stop previous accounting session, if one is started, and allocate
* new session id for the new session. */
accounting_sta_stop(hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"associated (aid %d)",
sta->aid);
if (sta->flags & WLAN_STA_ASSOC)
new_assoc = 0;
sta->flags |= WLAN_STA_ASSOC;
if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
sta->auth_alg == WLAN_AUTH_FT) {
/*
* Open, static WEP, or FT protocol; no separate authorization
* step.
*/
sta->flags |= WLAN_STA_AUTHORIZED;
wpa_msg(hapd->msg_ctx, MSG_INFO,
AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
}
if (reassoc)
mlme_reassociate_indication(hapd, sta);
else
mlme_associate_indication(hapd, sta);
#ifdef CONFIG_IEEE80211W
sta->sa_query_timed_out = 0;
#endif /* CONFIG_IEEE80211W */
/*
* Remove the STA entry in order to make sure the STA PS state gets
* cleared and configuration gets updated in case of reassociation back
* to the same AP.
*/
hapd->drv.sta_remove(hapd, sta->addr);
#ifdef CONFIG_IEEE80211N
if (sta->flags & WLAN_STA_HT)
hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap);
#endif /* CONFIG_IEEE80211N */
if (hapd->drv.sta_add(hapd, sta->addr, sta->aid, sta->capability,
sta->supported_rates, sta->supported_rates_len,
sta->listen_interval,
sta->flags & WLAN_STA_HT ? &ht_cap : NULL)) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_NOTICE,
"Could not add STA to kernel driver");
}
if (sta->eapol_sm == NULL) {
/*
* This STA does not use RADIUS server for EAP authentication,
* so bind it to the selected VLAN interface now, since the
* interface selection is not going to change anymore.
*/
if (ap_sta_bind_vlan(hapd, sta, 0) < 0)
goto fail;
} else if (sta->vlan_id) {
/* VLAN ID already set (e.g., by PMKSA caching), so bind STA */
if (ap_sta_bind_vlan(hapd, sta, 0) < 0)
goto fail;
}
hapd->drv.set_sta_flags(hapd, sta);
if (sta->auth_alg == WLAN_AUTH_FT)
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hapd->new_assoc_sta_cb(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
fail:
/* Copy of the association request is not needed anymore */
if (sta->last_assoc_req) {
os_free(sta->last_assoc_req);
sta->last_assoc_req = NULL;
}
}
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
hostapd *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
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;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"Checking STA " MACSTR " inactivity:\n",
MAC2STR(sta->addr));
inactive_sec = hostapd_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
printf(" Could not get station info from kernel "
"driver for " MACSTR ".\n",
MAC2STR(sta->addr));
} else if (inactive_sec < AP_MAX_INACTIVITY &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Station has been active\n");
sta->timeout_next = STA_NULLFUNC;
next_time = AP_MAX_INACTIVITY - inactive_sec;
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL)) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Station has ACKed data poll\n");
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = AP_MAX_INACTIVITY;
}
if (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)) {
/* send data frame to poll STA and check whether this frame
* is ACKed */
struct ieee80211_hdr hdr;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Polling STA with data frame\n");
sta->flags |= WLAN_STA_PENDING_POLL;
/* FIX: WLAN_FC_STYPE_NULLFUNC would be more appropriate, but
* it is apparently not retried so TX Exc events are not
* received for it */
memset(&hdr, 0, sizeof(hdr));
hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
hdr.frame_control |= host_to_le16(BIT(1));
hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
memcpy(hdr.IEEE80211_DA_FROMDS, sta->addr, ETH_ALEN);
memcpy(hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr, ETH_ALEN);
memcpy(hdr.IEEE80211_SA_FROMDS, hapd->own_addr, ETH_ALEN);
if (hostapd_send_mgmt_frame(hapd, &hdr, sizeof(hdr), 0) < 0)
perror("ap_handle_timer: send");
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
printf(" Sending %s info to STA " MACSTR "\n",
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_sta_deauth(hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
hostapd_sta_disassoc(
hapd, sta->addr,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
sta->flags &= ~WLAN_STA_ASSOC;
ieee802_1x_set_port_enabled(hapd, sta, 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;
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
ap_free_sta(hapd, sta);
break;
}
}
void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
int set_beacon = 0;
accounting_sta_stop(hapd, sta);
if (sta->flags & WLAN_STA_WDS)
hapd->drv.set_wds_sta(hapd, sta->addr, sta->aid, 0);
if (!(sta->flags & WLAN_STA_PREAUTH))
hapd->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);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_cancel_timeout(ap_handle_session_timer, 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 */
wpabuf_free(sta->wps_ie);
wpabuf_free(sta->p2p_ie);
os_free(sta->ht_capabilities);
os_free(sta);
}
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, NULL, sta->addr, sta->aid, 0);
if (sta->ipaddr)
hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
ap_sta_ip6addr_del(hapd, sta);
if (!hapd->iface->driver_ap_teardown &&
!(sta->flags & WLAN_STA_PREAUTH))
hostapd_drv_sta_remove(hapd, sta->addr);
#ifndef CONFIG_NO_VLAN
if (sta->vlan_id_bound) {
/*
* Need to remove the STA entry before potentially removing the
* VLAN.
*/
if (hapd->iface->driver_ap_teardown &&
!(sta->flags & WLAN_STA_PREAUTH))
hostapd_drv_sta_remove(hapd, sta->addr);
vlan_remove_dynamic(hapd, sta->vlan_id_bound);
}
#endif /* CONFIG_NO_VLAN */
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_IEEE80211N
ht40_intolerant_remove(hapd->iface, sta);
#endif /* CONFIG_IEEE80211N */
#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 */
#ifdef CONFIG_MESH
if (hapd->mesh_sta_free_cb)
hapd->mesh_sta_free_cb(sta);
#endif /* CONFIG_MESH */
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_handle_session_warning_timer, hapd, sta);
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
sae_clear_retransmit_timer(hapd, sta);
ieee802_1x_free_station(sta);
wpa_auth_sta_deinit(sta->wpa_sm);
rsn_preauth_free_station(hapd, sta);
#ifndef CONFIG_NO_RADIUS
if (hapd->radius)
radius_client_flush_auth(hapd->radius, sta->addr);
#endif /* CONFIG_NO_RADIUS */
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);
os_free(sta->vht_capabilities);
hostapd_free_psk_list(sta->psk);
os_free(sta->identity);
os_free(sta->radius_cui);
os_free(sta->remediation_url);
wpabuf_free(sta->hs20_deauth_req);
os_free(sta->hs20_session_info_url);
#ifdef CONFIG_SAE
sae_clear_data(sta->sae);
os_free(sta->sae);
#endif /* CONFIG_SAE */
os_free(sta);
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
const u8 *p2p_dev_addr = NULL;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
ap_sta_no_session_timeout(hapd, sta);
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
if (sta->p2p_ie)
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_INTERWORKING
if (elems.ext_capab && elems.ext_capab_len > 4) {
if (elems.ext_capab[4] & 0x01)
sta->qos_map_enabled = 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr,
p2p_dev_addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
#ifdef CONFIG_IEEE80211R
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
#endif /* CONFIG_IEEE80211R */
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
}
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(ie, ielen, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
int resp;
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_PAIRWISE)
resp = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_AKMP)
resp = WLAN_REASON_AKMP_NOT_VALID;
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
resp = WLAN_REASON_INVALID_IE;
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
#endif /* CONFIG_IEEE80211W */
else
resp = WLAN_REASON_INVALID_IE;
hapd->drv.sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
} else if (hapd->conf->wps_state) {
if (ie && ielen > 4 && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
}
skip_wpa_check:
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
const u8 *p2p_dev_addr = NULL;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
#ifdef CONFIG_HS20
} else if (elems.osen) {
ie = elems.osen - 2;
ielen = elems.osen_len + 2;
wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
#endif /* CONFIG_HS20 */
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
ap_sta_no_session_timeout(hapd, sta);
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
if (sta->p2p_ie)
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_IEEE80211N
#ifdef NEED_AP_MLME
if (elems.ht_capabilities &&
elems.ht_capabilities_len >=
sizeof(struct ieee80211_ht_capabilities) &&
(hapd->iface->conf->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
struct ieee80211_ht_capabilities *ht_cap =
(struct ieee80211_ht_capabilities *)
elems.ht_capabilities;
if (le_to_host16(ht_cap->ht_capabilities_info) &
HT_CAP_INFO_40MHZ_INTOLERANT)
ht40_intolerant_add(hapd->iface, sta);
}
#endif /* NEED_AP_MLME */
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_INTERWORKING
if (elems.ext_capab && elems.ext_capab_len > 4) {
if (elems.ext_capab[4] & 0x01)
sta->qos_map_enabled = 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_MTK_P2P
if (elems.wfd && (elems.wfd_len > 0)) {
struct p2p_message msg;
wpabuf_free(sta->wfd_ie);
sta->wfd_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WFD_IE_VENDOR_TYPE);
if(p2p_parse_wfd_ie(sta->wfd_ie,&msg)==0) {
wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie");
if(hapd->p2p) {
wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie 2");
wfd_process_request_and_switch_role(hapd->p2p, &msg, 0);
}
}
}
#endif /* CONFIG_MTK_P2P */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr,
p2p_dev_addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
#ifdef CONFIG_IEEE80211R
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
#endif /* CONFIG_IEEE80211R */
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
#ifdef CONFIG_HS20
} else if (hapd->conf->osen) {
if (elems.osen == NULL) {
hostapd_logger(
hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"No HS 2.0 OSEN element in association request");
return WLAN_STATUS_INVALID_IE;
}
wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr, NULL);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_WARNING, "Failed to initialize WPA "
"state machine");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
elems.osen - 2, elems.osen_len + 2) < 0)
return WLAN_STATUS_INVALID_IE;
#endif /* CONFIG_HS20 */
}
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
if (sta->auth_alg == WLAN_AUTH_FT)
ap_sta_set_authorized(hapd, sta, 1);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
hostapd_set_sta_flags(hapd, sta);
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
/*
[ALPS00326459][6575JB][BSP Package][6577JB][CTS Verifier 4.1_r2][MT6577_PHONE][changelist 996001]
GROUP JOIN 2 cases fail in Wi-Fi Direct Test
*/
#if defined(CONFIG_MTK_P2P) || defined(CONFIG_HOTSPOT_MGR_SUPPORT)
if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
sta->auth_alg == WLAN_AUTH_FT) {
/*
* Open, static WEP, or FT protocol; no separate authorization
* step.
*/
wpa_msg(hapd->msg_ctx, MSG_INFO,
AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
}
#endif /* CONFIG_MTK_P2P || CONFIG_HOTSPOT_MGR_SUPPORT */
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
static void handle_assoc_cb(hostapd *hapd, struct ieee80211_mgmt *mgmt,
size_t len, int reassoc, int ok)
{
u16 status;
struct sta_info *sta;
int new_assoc = 1;
if (!ok) {
hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"did not acknowledge association response");
return;
}
if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
sizeof(mgmt->u.assoc_req))) {
printf("handle_assoc_cb(reassoc=%d) - too short payload "
"(len=%lu)\n", reassoc, (unsigned long) len);
return;
}
if (reassoc)
status = le_to_host16(mgmt->u.reassoc_resp.status_code);
else
status = le_to_host16(mgmt->u.assoc_resp.status_code);
sta = ap_get_sta(hapd, mgmt->da);
if (!sta) {
printf("handle_assoc_cb: STA " MACSTR " not found\n",
MAC2STR(mgmt->da));
return;
}
if (status != WLAN_STATUS_SUCCESS)
goto fail;
/* Stop previous accounting session, if one is started, and allocate
* new session id for the new session. */
accounting_sta_stop(hapd, sta);
accounting_sta_get_id(hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"associated (aid %d, accounting session %08X-%08X)",
sta->aid, sta->acct_session_id_hi,
sta->acct_session_id_lo);
if (sta->flags & WLAN_STA_ASSOC)
new_assoc = 0;
sta->flags |= WLAN_STA_ASSOC;
if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability,
sta->tx_supp_rates)) {
printf("Could not add station to kernel driver.\n");
}
wpa_sm_event(hapd, sta, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
fail:
/* Copy of the association request is not needed anymore */
if (sta->last_assoc_req) {
free(sta->last_assoc_req);
sta->last_assoc_req = NULL;
}
}