libs/iwinfo/src/iwinfo_lualib.c

   1 /*
   2  * iwinfo - Wireless Information Library - Lua Bindings
   3  *
   4  *   Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  * The iwinfo library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   9  *
  10  * The iwinfo library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
  17  */
  18
  19 #include "iwinfo_lualib.h"
  20
  21 /* Determine type */
  22 static int iwinfo_L_type(lua_State *L)
  23 {
  24         const char *ifname = luaL_checkstring(L, 1);
  25
  26         if( wl_probe(ifname) )
  27                 lua_pushstring(L, "wl");
  28
  29         else if( madwifi_probe(ifname) )
  30                 lua_pushstring(L, "madwifi");
  31
  32         else if( wext_probe(ifname) )
  33                 lua_pushstring(L, "wext");
  34
  35         else
  36                 lua_pushnil(L);
  37
  38         return 1;
  39 }
  40
  41 /* Wrapper for assoclist */
  42 static int iwinfo_L_assoclist(lua_State *L, int (*func)(const char *, char *, int *))
  43 {
  44         int i, len;
  45         char rv[IWINFO_BUFSIZE];
  46         char macstr[18];
  47         const char *ifname = luaL_checkstring(L, 1);
  48         struct iwinfo_assoclist_entry *e;
  49
  50         lua_newtable(L);
  51         memset(rv, 0, sizeof(rv));
  52
  53         if( !(*func)(ifname, rv, &len) )
  54         {
  55                 for( i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry) )
  56                 {
  57                         e = (struct iwinfo_assoclist_entry *) &rv[i];
  58
  59                         sprintf(macstr, "%02X:%02X:%02X:%02X:%02X:%02X",
  60                                 e->mac[0], e->mac[1], e->mac[2],
  61                                 e->mac[3], e->mac[4], e->mac[5]);
  62
  63                         lua_newtable(L);
  64
  65                         lua_pushnumber(L, e->signal);
  66                         lua_setfield(L, -2, "signal");
  67
  68                         lua_pushnumber(L, e->noise);
  69                         lua_setfield(L, -2, "noise");
  70
  71                         lua_setfield(L, -2, macstr);
  72                 }
  73         }
  74
  75         return 1;
  76 }
  77
  78 /* Wrapper for tx power list */
  79 static int iwinfo_L_txpwrlist(lua_State *L, int (*func)(const char *, char *, int *))
  80 {
  81         int i, x, len;
  82         char rv[IWINFO_BUFSIZE];
  83         const char *ifname = luaL_checkstring(L, 1);
  84         struct iwinfo_txpwrlist_entry *e;
  85
  86         lua_newtable(L);
  87         memset(rv, 0, sizeof(rv));
  88
  89         if( !(*func)(ifname, rv, &len) )
  90         {
  91                 for( i = 0, x = 1; i < len; i += sizeof(struct iwinfo_txpwrlist_entry), x++ )
  92                 {
  93                         e = (struct iwinfo_txpwrlist_entry *) &rv[i];
  94
  95                         lua_newtable(L);
  96
  97                         lua_pushnumber(L, e->mw);
  98                         lua_setfield(L, -2, "mw");
  99
 100                         lua_pushnumber(L, e->dbm);
 101                         lua_setfield(L, -2, "dbm");
 102
 103                         lua_rawseti(L, -2, x);
 104                 }
 105         }
 106
 107         return 1;
 108 }
 109
 110 /* Broadcom */
 111 LUA_WRAP_INT(wl,channel)
 112 LUA_WRAP_INT(wl,frequency)
 113 LUA_WRAP_INT(wl,bitrate)
 114 LUA_WRAP_INT(wl,signal)
 115 LUA_WRAP_INT(wl,noise)
 116 LUA_WRAP_INT(wl,quality)
 117 LUA_WRAP_INT(wl,quality_max)
 118 LUA_WRAP_INT(wl,mbssid_support)
 119 LUA_WRAP_STRING(wl,mode)
 120 LUA_WRAP_STRING(wl,ssid)
 121 LUA_WRAP_STRING(wl,bssid)
 122 LUA_WRAP_STRING(wl,enctype)
 123 LUA_WRAP_LIST(wl,assoclist)
 124 LUA_WRAP_LIST(wl,txpwrlist)
 125
 126 /* Madwifi */
 127 LUA_WRAP_INT(madwifi,channel)
 128 LUA_WRAP_INT(madwifi,frequency)
 129 LUA_WRAP_INT(madwifi,bitrate)
 130 LUA_WRAP_INT(madwifi,signal)
 131 LUA_WRAP_INT(madwifi,noise)
 132 LUA_WRAP_INT(madwifi,quality)
 133 LUA_WRAP_INT(madwifi,quality_max)
 134 LUA_WRAP_INT(madwifi,mbssid_support)
 135 LUA_WRAP_STRING(madwifi,mode)
 136 LUA_WRAP_STRING(madwifi,ssid)
 137 LUA_WRAP_STRING(madwifi,bssid)
 138 LUA_WRAP_STRING(madwifi,enctype)
 139 LUA_WRAP_LIST(madwifi,assoclist)
 140 LUA_WRAP_LIST(madwifi,txpwrlist)
 141
 142 /* Wext */
 143 LUA_WRAP_INT(wext,channel)
 144 LUA_WRAP_INT(wext,frequency)
 145 LUA_WRAP_INT(wext,bitrate)
 146 LUA_WRAP_INT(wext,signal)
 147 LUA_WRAP_INT(wext,noise)
 148 LUA_WRAP_INT(wext,quality)
 149 LUA_WRAP_INT(wext,quality_max)
 150 LUA_WRAP_INT(wext,mbssid_support)
 151 LUA_WRAP_STRING(wext,mode)
 152 LUA_WRAP_STRING(wext,ssid)
 153 LUA_WRAP_STRING(wext,bssid)
 154 LUA_WRAP_STRING(wext,enctype)
 155 LUA_WRAP_LIST(wext,assoclist)
 156 LUA_WRAP_LIST(wext,txpwrlist)
 157
 158 /* Broadcom table */
 159 static const luaL_reg R_wl[] = {
 160         LUA_REG(wl,channel),
 161         LUA_REG(wl,frequency),
 162         LUA_REG(wl,bitrate),
 163         LUA_REG(wl,signal),
 164         LUA_REG(wl,noise),
 165         LUA_REG(wl,quality),
 166         LUA_REG(wl,quality_max),
 167         LUA_REG(wl,mode),
 168         LUA_REG(wl,ssid),
 169         LUA_REG(wl,bssid),
 170         LUA_REG(wl,enctype),
 171         LUA_REG(wl,assoclist),
 172         LUA_REG(wl,txpwrlist),
 173         LUA_REG(wl,mbssid_support),
 174         { NULL, NULL }
 175 };
 176
 177 /* Madwifi table */
 178 static const luaL_reg R_madwifi[] = {
 179         LUA_REG(madwifi,channel),
 180         LUA_REG(madwifi,frequency),
 181         LUA_REG(madwifi,bitrate),
 182         LUA_REG(madwifi,signal),
 183         LUA_REG(madwifi,noise),
 184         LUA_REG(madwifi,quality),
 185         LUA_REG(madwifi,quality_max),
 186         LUA_REG(madwifi,mode),
 187         LUA_REG(madwifi,ssid),
 188         LUA_REG(madwifi,bssid),
 189         LUA_REG(madwifi,enctype),
 190         LUA_REG(madwifi,assoclist),
 191         LUA_REG(madwifi,txpwrlist),
 192         LUA_REG(madwifi,mbssid_support),
 193         { NULL, NULL }
 194 };
 195
 196 /* Wext table */
 197 static const luaL_reg R_wext[] = {
 198         LUA_REG(wext,channel),
 199         LUA_REG(wext,frequency),
 200         LUA_REG(wext,bitrate),
 201         LUA_REG(wext,signal),
 202         LUA_REG(wext,noise),
 203         LUA_REG(wext,quality),
 204         LUA_REG(wext,quality_max),
 205         LUA_REG(wext,mode),
 206         LUA_REG(wext,ssid),
 207         LUA_REG(wext,bssid),
 208         LUA_REG(wext,enctype),
 209         LUA_REG(wext,assoclist),
 210         LUA_REG(wext,txpwrlist),
 211         LUA_REG(wext,mbssid_support),
 212         { NULL, NULL }
 213 };
 214
 215 /* Common */
 216 static const luaL_reg R_common[] = {
 217         { "type", iwinfo_L_type },
 218         { NULL, NULL }
 219 };
 220
 221
 222 LUALIB_API int luaopen_iwinfo(lua_State *L) {
 223         luaL_register(L, IWINFO_META, R_common);
 224
 225         luaL_newmetatable(L, IWINFO_WL_META);
 226         luaL_register(L, NULL, R_wl);
 227         lua_pushvalue(L, -1);
 228         lua_setfield(L, -2, "__index");
 229         lua_setfield(L, -2, "wl");
 230
 231         luaL_newmetatable(L, IWINFO_MADWIFI_META);
 232         luaL_register(L, NULL, R_madwifi);
 233         lua_pushvalue(L, -1);
 234         lua_setfield(L, -2, "__index");
 235         lua_setfield(L, -2, "madwifi");
 236
 237         luaL_newmetatable(L, IWINFO_WEXT_META);
 238         luaL_register(L, NULL, R_wext);
 239         lua_pushvalue(L, -1);
 240         lua_setfield(L, -2, "__index");
 241         lua_setfield(L, -2, "wext");
 242
 243         return 1;
 244 }
 245