ctrl_iface_ap.c

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/*
 * Control interface for shared AP commands
 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
 *
 * 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 "hostapd.h"
#include "ieee802_1x.h"
#include "wpa_auth.h"
#include "ieee802_11.h"
#include "sta_info.h"
#include "wps_hostapd.h"
#include "ctrl_iface_ap.h"


static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
                                      struct sta_info *sta,
                                      char *buf, size_t buflen)
{
        int len, res, ret;

        if (sta == NULL) {
                ret = os_snprintf(buf, buflen, "FAIL\n");
                if (ret < 0 || (size_t) ret >= buflen)
                        return 0;
                return ret;
        }

        len = 0;
        ret = os_snprintf(buf + len, buflen - len, MACSTR "\n",
                          MAC2STR(sta->addr));
        if (ret < 0 || (size_t) ret >= buflen - len)
                return len;
        len += ret;

        res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
        if (res >= 0)
                len += res;
        res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
        if (res >= 0)
                len += res;
        res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
        if (res >= 0)
                len += res;
        res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
                                      buflen - len);
        if (res >= 0)
                len += res;

        return len;
}


int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
                                 char *buf, size_t buflen)
{
        return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
}


int hostapd_ctrl_iface_sta(struct hostapd_data *hapd, const char *txtaddr,
                           char *buf, size_t buflen)
{
        u8 addr[ETH_ALEN];
        int ret;

        if (hwaddr_aton(txtaddr, addr)) {
                ret = os_snprintf(buf, buflen, "FAIL\n");
                if (ret < 0 || (size_t) ret >= buflen)
                        return 0;
                return ret;
        }
        return hostapd_ctrl_iface_sta_mib(hapd, ap_get_sta(hapd, addr),
                                          buf, buflen);
}


int hostapd_ctrl_iface_sta_next(struct hostapd_data *hapd, const char *txtaddr,
                                char *buf, size_t buflen)
{
        u8 addr[ETH_ALEN];
        struct sta_info *sta;
        int ret;

        if (hwaddr_aton(txtaddr, addr) ||
            (sta = ap_get_sta(hapd, addr)) == NULL) {
                ret = os_snprintf(buf, buflen, "FAIL\n");
                if (ret < 0 || (size_t) ret >= buflen)
                        return 0;
                return ret;
        }               
        return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
}