ap_mlme.c

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/*
 * hostapd / IEEE 802.11 MLME
 * Copyright 2003-2006, Jouni Malinen <j@w1.fi>
 * Copyright 2003-2004, Instant802 Networks, Inc.
 * Copyright 2005-2006, Devicescape Software, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "common/ieee802_11_defs.h"
#include "ieee802_11.h"
#include "wpa_auth.h"
#include "sta_info.h"
#include "ap_mlme.h"


#ifndef CONFIG_NO_HOSTAPD_LOGGER
static const char * mlme_auth_alg_str(int alg)
{
        switch (alg) {
        case WLAN_AUTH_OPEN:
                return "OPEN_SYSTEM";
        case WLAN_AUTH_SHARED_KEY:
                return "SHARED_KEY";
        case WLAN_AUTH_FT:
                return "FT";
        }

        return "unknown";
}
#endif /* CONFIG_NO_HOSTAPD_LOGGER */


void mlme_authenticate_indication(struct hostapd_data *hapd,
                                  struct sta_info *sta)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
                       MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
        if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
                mlme_deletekeys_request(hapd, sta);
}


void mlme_deauthenticate_indication(struct hostapd_data *hapd,
                                    struct sta_info *sta, u16 reason_code)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-DEAUTHENTICATE.indication(" MACSTR ", %d)",
                       MAC2STR(sta->addr), reason_code);
        mlme_deletekeys_request(hapd, sta);
}


void mlme_associate_indication(struct hostapd_data *hapd, struct sta_info *sta)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-ASSOCIATE.indication(" MACSTR ")",
                       MAC2STR(sta->addr));
        if (sta->auth_alg != WLAN_AUTH_FT)
                mlme_deletekeys_request(hapd, sta);
}


void mlme_reassociate_indication(struct hostapd_data *hapd,
                                 struct sta_info *sta)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-REASSOCIATE.indication(" MACSTR ")",
                       MAC2STR(sta->addr));
        if (sta->auth_alg != WLAN_AUTH_FT)
                mlme_deletekeys_request(hapd, sta);
}


void mlme_disassociate_indication(struct hostapd_data *hapd,
                                  struct sta_info *sta, u16 reason_code)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-DISASSOCIATE.indication(" MACSTR ", %d)",
                       MAC2STR(sta->addr), reason_code);
        mlme_deletekeys_request(hapd, sta);
}


void mlme_michaelmicfailure_indication(struct hostapd_data *hapd,
                                       const u8 *addr)
{
        hostapd_logger(hapd, addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-MichaelMICFailure.indication(" MACSTR ")",
                       MAC2STR(addr));
}


void mlme_deletekeys_request(struct hostapd_data *hapd, struct sta_info *sta)
{
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_MLME,
                       HOSTAPD_LEVEL_DEBUG,
                       "MLME-DELETEKEYS.request(" MACSTR ")",
                       MAC2STR(sta->addr));

        if (sta->wpa_sm)
                wpa_remove_ptk(sta->wpa_sm);
}