src/ap/ctrl_iface_ap.c

   1 /*
   2  * Control interface for shared AP commands
   3  * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "utils/includes.h"
  16
  17 #include "utils/common.h"
  18 #include "hostapd.h"
  19 #include "ieee802_1x.h"
  20 #include "wpa_auth.h"
  21 #include "ieee802_11.h"
  22 #include "sta_info.h"
  23 #include "wps_hostapd.h"
  24 #include "ctrl_iface_ap.h"
  25
  26
  27 static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
  28                                       struct sta_info *sta,
  29                                       char *buf, size_t buflen)
  30 {
  31         int len, res, ret;
  32
  33         if (sta == NULL) {
  34                 ret = os_snprintf(buf, buflen, "FAIL\n");
  35                 if (ret < 0 || (size_t) ret >= buflen)
  36                         return 0;
  37                 return ret;
  38         }
  39
  40         len = 0;
  41         ret = os_snprintf(buf + len, buflen - len, MACSTR "\n",
  42                           MAC2STR(sta->addr));
  43         if (ret < 0 || (size_t) ret >= buflen - len)
  44                 return len;
  45         len += ret;
  46
  47         res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
  48         if (res >= 0)
  49                 len += res;
  50         res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
  51         if (res >= 0)
  52                 len += res;
  53         res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
  54         if (res >= 0)
  55                 len += res;
  56         res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
  57                                       buflen - len);
  58         if (res >= 0)
  59                 len += res;
  60
  61         return len;
  62 }
  63
  64
  65 int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
  66                                  char *buf, size_t buflen)
  67 {
  68         return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
  69 }
  70
  71
  72 int hostapd_ctrl_iface_sta(struct hostapd_data *hapd, const char *txtaddr,
  73                            char *buf, size_t buflen)
  74 {
  75         u8 addr[ETH_ALEN];
  76         int ret;
  77
  78         if (hwaddr_aton(txtaddr, addr)) {
  79                 ret = os_snprintf(buf, buflen, "FAIL\n");
  80                 if (ret < 0 || (size_t) ret >= buflen)
  81                         return 0;
  82                 return ret;
  83         }
  84         return hostapd_ctrl_iface_sta_mib(hapd, ap_get_sta(hapd, addr),
  85                                           buf, buflen);
  86 }
  87
  88
  89 int hostapd_ctrl_iface_sta_next(struct hostapd_data *hapd, const char *txtaddr,
  90                                 char *buf, size_t buflen)
  91 {
  92         u8 addr[ETH_ALEN];
  93         struct sta_info *sta;
  94         int ret;
  95
  96         if (hwaddr_aton(txtaddr, addr) ||
  97             (sta = ap_get_sta(hapd, addr)) == NULL) {
  98                 ret = os_snprintf(buf, buflen, "FAIL\n");
  99                 if (ret < 0 || (size_t) ret >= buflen)
 100                         return 0;
 101                 return ret;
 102         }
 103         return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
 104 }