![Peng Xu](/assets/img/avatar_default.png)
Extend the minimal HT 20/40 co-ex support to include dynamic changes during the lifetime of the BSS. If any STA connects to a 2.4 GHz AP with 40 MHz intolerant bit set then the AP will switch to 20 MHz operating mode. If for a period of time specified by OBSS delay factor and OBSS scan interval AP does not have any information about 40 MHz intolerant STAs, the BSS is switched from HT20 to HT40 mode. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
1092 lines
30 KiB
C
1092 lines
30 KiB
C
/*
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* hostapd / Station table
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* Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "common/ieee802_11_defs.h"
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#include "common/wpa_ctrl.h"
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#include "common/sae.h"
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#include "radius/radius.h"
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#include "radius/radius_client.h"
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#include "p2p/p2p.h"
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#include "hostapd.h"
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#include "accounting.h"
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#include "ieee802_1x.h"
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#include "ieee802_11.h"
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#include "ieee802_11_auth.h"
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#include "wpa_auth.h"
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#include "preauth_auth.h"
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#include "ap_config.h"
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#include "beacon.h"
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#include "ap_mlme.h"
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#include "vlan_init.h"
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#include "p2p_hostapd.h"
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#include "ap_drv_ops.h"
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#include "gas_serv.h"
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#include "wnm_ap.h"
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#include "sta_info.h"
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static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
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struct sta_info *sta);
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static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
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static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
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static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
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static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
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#ifdef CONFIG_IEEE80211W
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static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
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#endif /* CONFIG_IEEE80211W */
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static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
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int ap_for_each_sta(struct hostapd_data *hapd,
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int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
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void *ctx),
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void *ctx)
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{
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struct sta_info *sta;
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for (sta = hapd->sta_list; sta; sta = sta->next) {
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if (cb(hapd, sta, ctx))
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return 1;
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}
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return 0;
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}
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struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
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{
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struct sta_info *s;
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s = hapd->sta_hash[STA_HASH(sta)];
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while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
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s = s->hnext;
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return s;
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}
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#ifdef CONFIG_P2P
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struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
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{
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struct sta_info *sta;
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for (sta = hapd->sta_list; sta; sta = sta->next) {
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const u8 *p2p_dev_addr;
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if (sta->p2p_ie == NULL)
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continue;
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p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
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if (p2p_dev_addr == NULL)
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continue;
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if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
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return sta;
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}
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return NULL;
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}
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#endif /* CONFIG_P2P */
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static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
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{
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struct sta_info *tmp;
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if (hapd->sta_list == sta) {
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hapd->sta_list = sta->next;
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return;
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}
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tmp = hapd->sta_list;
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while (tmp != NULL && tmp->next != sta)
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tmp = tmp->next;
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if (tmp == NULL) {
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wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
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"list.", MAC2STR(sta->addr));
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} else
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tmp->next = sta->next;
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}
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void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
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{
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sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
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hapd->sta_hash[STA_HASH(sta->addr)] = sta;
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}
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static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
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{
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struct sta_info *s;
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s = hapd->sta_hash[STA_HASH(sta->addr)];
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if (s == NULL) return;
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if (os_memcmp(s->addr, sta->addr, 6) == 0) {
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hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
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return;
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}
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while (s->hnext != NULL &&
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os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
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s = s->hnext;
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if (s->hnext != NULL)
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s->hnext = s->hnext->hnext;
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else
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wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
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" from hash table", MAC2STR(sta->addr));
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}
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void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
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{
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int set_beacon = 0;
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accounting_sta_stop(hapd, sta);
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/* just in case */
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ap_sta_set_authorized(hapd, sta, 0);
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if (sta->flags & WLAN_STA_WDS)
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hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
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if (!hapd->iface->driver_ap_teardown &&
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!(sta->flags & WLAN_STA_PREAUTH))
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hostapd_drv_sta_remove(hapd, sta->addr);
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ap_sta_hash_del(hapd, sta);
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ap_sta_list_del(hapd, sta);
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if (sta->aid > 0)
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hapd->sta_aid[(sta->aid - 1) / 32] &=
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~BIT((sta->aid - 1) % 32);
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hapd->num_sta--;
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if (sta->nonerp_set) {
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sta->nonerp_set = 0;
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hapd->iface->num_sta_non_erp--;
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if (hapd->iface->num_sta_non_erp == 0)
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set_beacon++;
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}
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if (sta->no_short_slot_time_set) {
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sta->no_short_slot_time_set = 0;
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hapd->iface->num_sta_no_short_slot_time--;
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if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
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&& hapd->iface->num_sta_no_short_slot_time == 0)
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set_beacon++;
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}
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if (sta->no_short_preamble_set) {
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sta->no_short_preamble_set = 0;
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hapd->iface->num_sta_no_short_preamble--;
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if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
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&& hapd->iface->num_sta_no_short_preamble == 0)
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set_beacon++;
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}
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if (sta->no_ht_gf_set) {
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sta->no_ht_gf_set = 0;
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hapd->iface->num_sta_ht_no_gf--;
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}
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if (sta->no_ht_set) {
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sta->no_ht_set = 0;
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hapd->iface->num_sta_no_ht--;
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}
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if (sta->ht_20mhz_set) {
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sta->ht_20mhz_set = 0;
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hapd->iface->num_sta_ht_20mhz--;
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}
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#ifdef CONFIG_IEEE80211N
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ht40_intolerant_remove(hapd->iface, sta);
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#endif /* CONFIG_IEEE80211N */
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#ifdef CONFIG_P2P
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if (sta->no_p2p_set) {
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sta->no_p2p_set = 0;
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hapd->num_sta_no_p2p--;
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if (hapd->num_sta_no_p2p == 0)
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hostapd_p2p_non_p2p_sta_disconnected(hapd);
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}
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#endif /* CONFIG_P2P */
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#if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
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if (hostapd_ht_operation_update(hapd->iface) > 0)
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set_beacon++;
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#endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
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if (set_beacon)
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ieee802_11_set_beacons(hapd->iface);
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wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
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__func__, MAC2STR(sta->addr));
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eloop_cancel_timeout(ap_handle_timer, hapd, sta);
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eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
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eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
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eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
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eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
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ieee802_1x_free_station(sta);
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wpa_auth_sta_deinit(sta->wpa_sm);
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rsn_preauth_free_station(hapd, sta);
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#ifndef CONFIG_NO_RADIUS
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if (hapd->radius)
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radius_client_flush_auth(hapd->radius, sta->addr);
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#endif /* CONFIG_NO_RADIUS */
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os_free(sta->challenge);
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#ifdef CONFIG_IEEE80211W
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os_free(sta->sa_query_trans_id);
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eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
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#endif /* CONFIG_IEEE80211W */
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#ifdef CONFIG_P2P
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p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
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#endif /* CONFIG_P2P */
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#ifdef CONFIG_INTERWORKING
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if (sta->gas_dialog) {
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int i;
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for (i = 0; i < GAS_DIALOG_MAX; i++)
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gas_serv_dialog_clear(&sta->gas_dialog[i]);
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os_free(sta->gas_dialog);
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}
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#endif /* CONFIG_INTERWORKING */
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wpabuf_free(sta->wps_ie);
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wpabuf_free(sta->p2p_ie);
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wpabuf_free(sta->hs20_ie);
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os_free(sta->ht_capabilities);
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os_free(sta->vht_capabilities);
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hostapd_free_psk_list(sta->psk);
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os_free(sta->identity);
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os_free(sta->radius_cui);
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os_free(sta->remediation_url);
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wpabuf_free(sta->hs20_deauth_req);
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os_free(sta->hs20_session_info_url);
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#ifdef CONFIG_SAE
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sae_clear_data(sta->sae);
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os_free(sta->sae);
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#endif /* CONFIG_SAE */
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os_free(sta);
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}
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void hostapd_free_stas(struct hostapd_data *hapd)
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{
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struct sta_info *sta, *prev;
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sta = hapd->sta_list;
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while (sta) {
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prev = sta;
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if (sta->flags & WLAN_STA_AUTH) {
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mlme_deauthenticate_indication(
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hapd, sta, WLAN_REASON_UNSPECIFIED);
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}
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sta = sta->next;
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wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
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MAC2STR(prev->addr));
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ap_free_sta(hapd, prev);
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}
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}
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/**
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* ap_handle_timer - Per STA timer handler
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* @eloop_ctx: struct hostapd_data *
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* @timeout_ctx: struct sta_info *
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*
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* This function is called to check station activity and to remove inactive
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* stations.
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*/
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void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
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{
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struct hostapd_data *hapd = eloop_ctx;
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struct sta_info *sta = timeout_ctx;
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unsigned long next_time = 0;
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int reason;
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wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
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__func__, MAC2STR(sta->addr), sta->flags,
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sta->timeout_next);
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if (sta->timeout_next == STA_REMOVE) {
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "deauthenticated due to "
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"local deauth request");
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ap_free_sta(hapd, sta);
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return;
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}
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if ((sta->flags & WLAN_STA_ASSOC) &&
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(sta->timeout_next == STA_NULLFUNC ||
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sta->timeout_next == STA_DISASSOC)) {
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int inactive_sec;
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/*
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* Add random value to timeout so that we don't end up bouncing
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* all stations at the same time if we have lots of associated
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* stations that are idle (but keep re-associating).
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*/
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int fuzz = os_random() % 20;
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inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
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if (inactive_sec == -1) {
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wpa_msg(hapd->msg_ctx, MSG_DEBUG,
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"Check inactivity: Could not "
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"get station info from kernel driver for "
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MACSTR, MAC2STR(sta->addr));
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/*
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* The driver may not support this functionality.
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* Anyway, try again after the next inactivity timeout,
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* but do not disconnect the station now.
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*/
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next_time = hapd->conf->ap_max_inactivity + fuzz;
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} else if (inactive_sec < hapd->conf->ap_max_inactivity &&
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sta->flags & WLAN_STA_ASSOC) {
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/* station activity detected; reset timeout state */
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wpa_msg(hapd->msg_ctx, MSG_DEBUG,
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"Station " MACSTR " has been active %is ago",
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MAC2STR(sta->addr), inactive_sec);
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sta->timeout_next = STA_NULLFUNC;
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next_time = hapd->conf->ap_max_inactivity + fuzz -
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inactive_sec;
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} else {
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wpa_msg(hapd->msg_ctx, MSG_DEBUG,
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"Station " MACSTR " has been "
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"inactive too long: %d sec, max allowed: %d",
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MAC2STR(sta->addr), inactive_sec,
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hapd->conf->ap_max_inactivity);
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if (hapd->conf->skip_inactivity_poll)
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sta->timeout_next = STA_DISASSOC;
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}
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}
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if ((sta->flags & WLAN_STA_ASSOC) &&
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sta->timeout_next == STA_DISASSOC &&
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!(sta->flags & WLAN_STA_PENDING_POLL) &&
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!hapd->conf->skip_inactivity_poll) {
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wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
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" has ACKed data poll", MAC2STR(sta->addr));
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/* data nullfunc frame poll did not produce TX errors; assume
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* station ACKed it */
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sta->timeout_next = STA_NULLFUNC;
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next_time = hapd->conf->ap_max_inactivity;
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}
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if (next_time) {
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wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
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"for " MACSTR " (%lu seconds)",
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__func__, MAC2STR(sta->addr), next_time);
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eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
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sta);
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return;
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}
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if (sta->timeout_next == STA_NULLFUNC &&
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(sta->flags & WLAN_STA_ASSOC)) {
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wpa_printf(MSG_DEBUG, " Polling STA");
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sta->flags |= WLAN_STA_PENDING_POLL;
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hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
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sta->flags & WLAN_STA_WMM);
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} else if (sta->timeout_next != STA_REMOVE) {
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int deauth = sta->timeout_next == STA_DEAUTH;
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wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
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"Timeout, sending %s info to STA " MACSTR,
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deauth ? "deauthentication" : "disassociation",
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MAC2STR(sta->addr));
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if (deauth) {
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hostapd_drv_sta_deauth(
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hapd, sta->addr,
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WLAN_REASON_PREV_AUTH_NOT_VALID);
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} else {
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reason = (sta->timeout_next == STA_DISASSOC) ?
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
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WLAN_REASON_PREV_AUTH_NOT_VALID;
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hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
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}
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}
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switch (sta->timeout_next) {
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case STA_NULLFUNC:
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sta->timeout_next = STA_DISASSOC;
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wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
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"for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
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__func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
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eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
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hapd, sta);
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break;
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case STA_DISASSOC:
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case STA_DISASSOC_FROM_CLI:
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ap_sta_set_authorized(hapd, sta, 0);
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sta->flags &= ~WLAN_STA_ASSOC;
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ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
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if (!sta->acct_terminate_cause)
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sta->acct_terminate_cause =
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RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
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accounting_sta_stop(hapd, sta);
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ieee802_1x_free_station(sta);
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hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
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HOSTAPD_LEVEL_INFO, "disassociated due to "
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"inactivity");
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reason = (sta->timeout_next == STA_DISASSOC) ?
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
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WLAN_REASON_PREV_AUTH_NOT_VALID;
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sta->timeout_next = STA_DEAUTH;
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wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
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"for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
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__func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
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|
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
|
|
hapd, sta);
|
|
mlme_disassociate_indication(hapd, sta, reason);
|
|
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;
|
|
|
|
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;
|
|
}
|
|
|
|
hostapd_drv_sta_deauth(hapd, sta->addr,
|
|
WLAN_REASON_PREV_AUTH_NOT_VALID);
|
|
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;
|
|
ap_free_sta(hapd, sta);
|
|
}
|
|
|
|
|
|
void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
|
|
u32 session_timeout)
|
|
{
|
|
if (eloop_replenish_timeout(session_timeout, 0,
|
|
ap_handle_session_timer, hapd, sta) == 1) {
|
|
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
|
|
HOSTAPD_LEVEL_DEBUG, "setting session timeout "
|
|
"to %d seconds", session_timeout);
|
|
}
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
#ifdef CONFIG_WNM
|
|
struct hostapd_data *hapd = eloop_ctx;
|
|
struct sta_info *sta = timeout_ctx;
|
|
|
|
wpa_printf(MSG_DEBUG, "WNM: Session warning time reached for " MACSTR,
|
|
MAC2STR(sta->addr));
|
|
if (sta->hs20_session_info_url == NULL)
|
|
return;
|
|
|
|
wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
|
|
sta->hs20_disassoc_timer);
|
|
#endif /* CONFIG_WNM */
|
|
}
|
|
|
|
|
|
void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
|
|
struct sta_info *sta, int warning_time)
|
|
{
|
|
eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
|
|
eloop_register_timeout(warning_time, 0, ap_handle_session_warning_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);
|
|
|
|
if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
|
|
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);
|
|
}
|
|
|
|
/* initialize STA info data */
|
|
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 | WLAN_STA_ASSOC_REQ_OK);
|
|
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) {
|
|
struct hostapd_vlan *wildcard_vlan = NULL;
|
|
vlan = hapd->conf->vlan;
|
|
while (vlan) {
|
|
if (vlan->vlan_id == sta->vlan_id)
|
|
break;
|
|
if (vlan->vlan_id == VLAN_ID_WILDCARD)
|
|
wildcard_vlan = vlan;
|
|
vlan = vlan->next;
|
|
}
|
|
if (!vlan)
|
|
vlan = wildcard_vlan;
|
|
if (vlan)
|
|
iface = vlan->ifname;
|
|
}
|
|
|
|
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_reltime now, passed;
|
|
os_get_reltime(&now);
|
|
os_reltime_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_reltime(&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;
|
|
char buf[100];
|
|
#ifdef CONFIG_P2P
|
|
u8 addr[ETH_ALEN];
|
|
u8 ip_addr_buf[4];
|
|
#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 (dev_addr)
|
|
os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
|
|
MAC2STR(sta->addr), MAC2STR(dev_addr));
|
|
else
|
|
os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
|
|
|
|
if (authorized) {
|
|
char ip_addr[100];
|
|
ip_addr[0] = '\0';
|
|
#ifdef CONFIG_P2P
|
|
if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
|
|
os_snprintf(ip_addr, sizeof(ip_addr),
|
|
" ip_addr=%u.%u.%u.%u",
|
|
ip_addr_buf[0], ip_addr_buf[1],
|
|
ip_addr_buf[2], ip_addr_buf[3]);
|
|
}
|
|
#endif /* CONFIG_P2P */
|
|
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
|
|
buf, ip_addr);
|
|
|
|
if (hapd->msg_ctx_parent &&
|
|
hapd->msg_ctx_parent != hapd->msg_ctx)
|
|
wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
|
|
AP_STA_CONNECTED "%s%s",
|
|
buf, ip_addr);
|
|
|
|
sta->flags |= WLAN_STA_AUTHORIZED;
|
|
} else {
|
|
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
|
|
|
|
if (hapd->msg_ctx_parent &&
|
|
hapd->msg_ctx_parent != hapd->msg_ctx)
|
|
wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
|
|
AP_STA_DISCONNECTED "%s", buf);
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
|
|
{
|
|
int res;
|
|
|
|
buf[0] = '\0';
|
|
res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
|
|
(flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
|
|
(flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
|
|
(flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
|
|
(flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
|
|
""),
|
|
(flags & WLAN_STA_SHORT_PREAMBLE ?
|
|
"[SHORT_PREAMBLE]" : ""),
|
|
(flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
|
|
(flags & WLAN_STA_WMM ? "[WMM]" : ""),
|
|
(flags & WLAN_STA_MFP ? "[MFP]" : ""),
|
|
(flags & WLAN_STA_WPS ? "[WPS]" : ""),
|
|
(flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
|
|
(flags & WLAN_STA_WDS ? "[WDS]" : ""),
|
|
(flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
|
|
(flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
|
|
(flags & WLAN_STA_GAS ? "[GAS]" : ""),
|
|
(flags & WLAN_STA_VHT ? "[VHT]" : ""),
|
|
(flags & WLAN_STA_WNM_SLEEP_MODE ?
|
|
"[WNM_SLEEP_MODE]" : ""));
|
|
|
|
return res;
|
|
}
|