[proxmark3-svn] / client / scripting.c

//-----------------------------------------------------------------------------
// Copyright (C) 2013 m h swende <martin at swende.se>
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Some lua scripting glue to proxmark core.
//-----------------------------------------------------------------------------

#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#include "proxmark3.h"
#include "usb_cmd.h"
#include "cmdmain.h"
#include "scripting.h"
#include "util.h"
#include "nonce2key/nonce2key.h"
#include "../common/iso15693tools.h"
#include <openssl/aes.h>   
/**
 * The following params expected:
 *  UsbCommand c
 *@brief l_SendCommand
 * @param L
 * @return
 */
static int l_SendCommand(lua_State *L){

    /*
     *
     The SendCommand (native) expects the following structure:

     typedef struct {
      uint64_t cmd; //8 bytes
      uint64_t arg[3]; // 8*3 bytes = 24 bytes
      union {
        uint8_t  asBytes[USB_CMD_DATA_SIZE]; // 1 byte * 512 = 512 bytes (OR)
        uint32_t asDwords[USB_CMD_DATA_SIZE/4]; // 4 byte * 128 = 512 bytes
      } d;
    } PACKED UsbCommand;

    ==> A 544 byte buffer will do.
    **/
    //Pop cmd
    size_t size;
    const char *data = luaL_checklstring(L, 1, &size);
    if(size != sizeof(UsbCommand))
    {
        printf("Got data size %d, expected %d" , (int) size,(int) sizeof(UsbCommand));
        lua_pushstring(L,"Wrong data size");
        return 1;
    }

//    UsbCommand c = (*data);
    SendCommand((UsbCommand* )data);
    return 0; // no return values
}
/**
 * @brief The following params expected:
 * uint32_t cmd
 * size_t ms_timeout
 * @param L
 * @return
 */
static int l_WaitForResponseTimeout(lua_State *L){

    uint32_t cmd = 0;
    size_t ms_timeout = -1;

    //Check number of arguments
    int n = lua_gettop(L);
    if(n == 0)
    {
        //signal error by returning Nil, errorstring
        lua_pushnil(L);
        lua_pushstring(L,"You need to supply at least command to wait for");
        return 2; // two return values
    }
    if(n >= 1)
    {
        //pop cmd
        cmd = luaL_checkunsigned(L,1);
    }
    if(n >= 2)
    {
        //Did the user send a timeout ?
        //Check if the current top of stack is an integer
        ms_timeout = luaL_checkunsigned(L,2);
        //printf("Timeout set to %dms\n" , (int) ms_timeout);
    }

    UsbCommand response;

    if(WaitForResponseTimeout(cmd, &response, ms_timeout))
    {
        //Push it as a string
         lua_pushlstring(L,(const char *)&response,sizeof(UsbCommand));

        return 1;// return 1 to signal one return value
    }else{
        //Push a Nil instead
        lua_pushnil(L);
        return 1;// one return value
    }
}

static int returnToLuaWithError(lua_State *L, const char* fmt, ...)
{
    char buffer[200];
    va_list args;
    va_start(args,fmt);
    vsnprintf(buffer, sizeof(buffer), fmt,args);
    va_end(args);

    lua_pushnil(L);
    lua_pushstring(L,buffer);
    return 2;
}

static int l_nonce2key(lua_State *L){

    size_t size;
    const char *p_uid = luaL_checklstring(L, 1, &size);
    if(size != 4)  return returnToLuaWithError(L,"Wrong size of uid, got %d bytes, expected 4", (int) size);

    const char *p_nt = luaL_checklstring(L, 2, &size);
    if(size != 4)  return returnToLuaWithError(L,"Wrong size of nt, got %d bytes, expected 4", (int) size);

    const char *p_nr = luaL_checklstring(L, 3, &size);
    if(size != 4)  return returnToLuaWithError(L,"Wrong size of nr, got %d bytes, expected 4", (int) size);

    const char *p_par_info = luaL_checklstring(L, 4, &size);
    if(size != 8)  return returnToLuaWithError(L,"Wrong size of par_info, got %d bytes, expected 8", (int) size);

    const char *p_pks_info = luaL_checklstring(L, 5, &size);
    if(size != 8)  return returnToLuaWithError(L,"Wrong size of ks_info, got %d bytes, expected 8", (int) size);


    uint32_t uid = bytes_to_num(( uint8_t *)p_uid,4);
    uint32_t nt = bytes_to_num(( uint8_t *)p_nt,4);

    uint32_t nr = bytes_to_num(( uint8_t*)p_nr,4);
    uint64_t par_info = bytes_to_num(( uint8_t *)p_par_info,8);
    uint64_t ks_info = bytes_to_num(( uint8_t *)p_pks_info,8);

    uint64_t key = 0;

    int retval = nonce2key(uid,nt, nr, par_info,ks_info, &key);

    //Push the retval on the stack
    lua_pushinteger(L,retval);
  
    //Push the key onto the stack
    uint8_t dest_key[8];
    num_to_bytes(key,sizeof(dest_key),dest_key);

    //printf("Pushing to lua stack: %012"llx"\n",key);
    lua_pushlstring(L,(const char *) dest_key,sizeof(dest_key));

    return 2; //Two return values
}
//static int l_PrintAndLog(lua_State *L){ return CmdHF14AMfDump(luaL_checkstring(L, 1));}
static int l_clearCommandBuffer(lua_State *L){
    clearCommandBuffer();
    return 0;
}
/**
 * @brief l_foobar is a dummy function to test lua-integration with
 * @param L
 * @return
 */
static int l_foobar(lua_State *L)
{
    //Check number of arguments
    int n = lua_gettop(L);
    printf("foobar called with %d arguments" , n);
    lua_settop(L, 0);
    printf("Arguments discarded, stack now contains %d elements", lua_gettop(L));
  
    // todo: this is not used, where was it intended for?
    // UsbCommand response =  {CMD_MIFARE_READBL, {1337, 1338, 1339}};
  
    printf("Now returning a uint64_t as a string");
    uint64_t x = 0xDEADBEEF;
    uint8_t destination[8];
    num_to_bytes(x,sizeof(x),destination);
    lua_pushlstring(L,(const char *)&x,sizeof(x));
    lua_pushlstring(L,(const char *)destination,sizeof(destination));

    return 2;
}


/**
 * @brief Utility to check if a key has been pressed by the user. This method does not block.
 * @param L
 * @return boolean, true if kbhit, false otherwise.
 */
static int l_ukbhit(lua_State *L)
{
    lua_pushboolean(L,ukbhit() ? true : false);
    return 1;
}
/**
 * @brief Calls the command line parser to deal with the command. This enables
 * lua-scripts to do stuff like "core.console('hf mf mifare')"
 * @param L
 * @return
 */
static int l_CmdConsole(lua_State *L)
{
    CommandReceived((char *)luaL_checkstring(L, 1));
    return 0;
}

static int l_iso15693_crc(lua_State *L)
{
    //    uint16_t Iso15693Crc(uint8_t *v, int n);
    size_t size;
    const char *v = luaL_checklstring(L, 1, &size);
    uint16_t retval = Iso15693Crc((uint8_t *) v, size);
    lua_pushinteger(L, (int) retval);
    return 1;
}

/*
 Simple AES 128 cbc hook up to OpenSSL.
 params:  key, input
*/
static int l_aes(lua_State *L)
{
	//Check number of arguments
	int i;
    size_t size;
    const char *p_key = luaL_checklstring(L, 1, &size);
    if(size != 32)  return returnToLuaWithError(L,"Wrong size of key, got %d bytes, expected 32", (int) size);

    const char *p_encTxt = luaL_checklstring(L, 2, &size);
    
	unsigned char indata[AES_BLOCK_SIZE] = {0x00};
	unsigned char outdata[AES_BLOCK_SIZE] = {0x00};
    unsigned char aes_key[AES_BLOCK_SIZE] = {0x00};
	unsigned char iv[AES_BLOCK_SIZE] = {0x00};
	
	// convert key to bytearray
	for (i = 0; i < 32; i += 2) {
		sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]);
	}
	
	// convert input to bytearray
	for (i = 0; i < 32; i += 2) {
		sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
	}
	
	AES_KEY key;
	AES_set_decrypt_key(aes_key, 128, &key);
    AES_cbc_encrypt(indata, outdata, sizeof(indata), &key, iv, AES_DECRYPT);

    //Push decrypted array as a string
	lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
	return 1;// return 1 to signal one return value
}

/**
 * @brief Sets the lua path to include "./lualibs/?.lua", in order for a script to be
 * able to do "require('foobar')" if foobar.lua is within lualibs folder.
 * Taken from http://stackoverflow.com/questions/4125971/setting-the-global-lua-path-variable-from-c-c
 * @param L
 * @param path
 * @return
 */
int setLuaPath( lua_State* L, const char* path )
{
    lua_getglobal( L, "package" );
    lua_getfield( L, -1, "path" ); // get field "path" from table at top of stack (-1)
    const char* cur_path = lua_tostring( L, -1 ); // grab path string from top of stack
    int requiredLength = strlen(cur_path)+ strlen(path)+10; //A few bytes too many, whatever we can afford it
    char * buf = malloc(requiredLength);
    snprintf(buf, requiredLength, "%s;%s", cur_path, path);
    lua_pop( L, 1 ); // get rid of the string on the stack we just pushed on line 5
    lua_pushstring( L, buf ); // push the new one
    lua_setfield( L, -2, "path" ); // set the field "path" in table at -2 with value at top of stack
    lua_pop( L, 1 ); // get rid of package table from top of stack
    return 0; // all done!
}


int set_pm3_libraries(lua_State *L)
{

    static const luaL_Reg libs[] = {
        {"SendCommand",                 l_SendCommand},
        {"WaitForResponseTimeout",      l_WaitForResponseTimeout},
        {"nonce2key",                   l_nonce2key},
        //{"PrintAndLog",                 l_PrintAndLog},
        {"foobar",                      l_foobar},
        {"ukbhit",                      l_ukbhit},
        {"clearCommandBuffer",          l_clearCommandBuffer},
        {"console",                     l_CmdConsole},
        {"iso15693_crc",                l_iso15693_crc},
		{"aes",                         l_aes},
        {NULL, NULL}
    };

    lua_pushglobaltable(L);
    // Core library is in this table. Contains '
    //this is 'pm3' table
    lua_newtable(L);

    //Put the function into the hash table.
    for (int i = 0; libs[i].name; i++) {
        lua_pushcfunction(L, libs[i].func);
        lua_setfield(L, -2, libs[i].name);//set the name, pop stack
    }
    //Name of 'core'
    lua_setfield(L, -2, "core");

    //-- remove the global environment table from the stack
    lua_pop(L, 1);

    //-- Last but not least, add to the LUA_PATH (package.path in lua)
    // so we can load libraries from the ./lualib/ - directory
    setLuaPath(L,"./lualibs/?.lua");

    return 1;
}
Commit	Line	Data
5b760b6c	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2013 m h swende <martin at swende.se>
	3	//
	4	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	5	// at your option, any later version. See the LICENSE.txt file for the text of
	6	// the license.
	7	//-----------------------------------------------------------------------------
	8	// Some lua scripting glue to proxmark core.
	9	//-----------------------------------------------------------------------------
	10
	11	#include <lua.h>
	12	#include <lualib.h>
	13	#include <lauxlib.h>
	14	#include "proxmark3.h"
	15	#include "usb_cmd.h"
	16	#include "cmdmain.h"
	17	#include "scripting.h"
44fffc54	18	#include "util.h"
2dcdf1a6	19	#include "nonce2key/nonce2key.h"
77cd612f	20	#include "../common/iso15693tools.h"
c15d2bdc	21	#include <openssl/aes.h>
5b760b6c	22	/**
	23	* The following params expected:
	24	* UsbCommand c
	25	*@brief l_SendCommand
	26	* @param L
	27	* @return
	28	*/
	29	static int l_SendCommand(lua_State *L){
	30
	31	/*
	32	*
	33	The SendCommand (native) expects the following structure:
	34
	35	typedef struct {
	36	uint64_t cmd; //8 bytes
	37	uint64_t arg[3]; // 8*3 bytes = 24 bytes
	38	union {
	39	uint8_t asBytes[USB_CMD_DATA_SIZE]; // 1 byte * 512 = 512 bytes (OR)
	40	uint32_t asDwords[USB_CMD_DATA_SIZE/4]; // 4 byte * 128 = 512 bytes
	41	} d;
	42	} PACKED UsbCommand;
	43
	44	==> A 544 byte buffer will do.
	45	**/
	46	//Pop cmd
96e7a3a5	47	size_t size;
	48	const char *data = luaL_checklstring(L, 1, &size);
	49	if(size != sizeof(UsbCommand))
	50	{
f057bddb	51	printf("Got data size %d, expected %d" , (int) size,(int) sizeof(UsbCommand));
96e7a3a5	52	lua_pushstring(L,"Wrong data size");
	53	return 1;
	54	}
	55
	56	// UsbCommand c = (*data);
42daa759	57	SendCommand((UsbCommand* )data);
44fffc54	58	return 0; // no return values
5b760b6c	59	}
	60	/**
	61	* @brief The following params expected:
	62	* uint32_t cmd
	63	* size_t ms_timeout
	64	* @param L
	65	* @return
	66	*/
	67	static int l_WaitForResponseTimeout(lua_State *L){
	68
44fffc54	69	uint32_t cmd = 0;
44fffc54	70	size_t ms_timeout = -1;
5b760b6c	71
44fffc54	72	//Check number of arguments
	73	int n = lua_gettop(L);
	74	if(n == 0)
5b760b6c	75	{
44fffc54	76	//signal error by returning Nil, errorstring
	77	lua_pushnil(L);
	78	lua_pushstring(L,"You need to supply at least command to wait for");
	79	return 2; // two return values
	80	}
	81	if(n >= 1)
	82	{
	83	//pop cmd
	84	cmd = luaL_checkunsigned(L,1);
	85	}
	86	if(n >= 2)
	87	{
	88	//Did the user send a timeout ?
	89	//Check if the current top of stack is an integer
5b760b6c	90	ms_timeout = luaL_checkunsigned(L,2);
44fffc54	91	//printf("Timeout set to %dms\n" , (int) ms_timeout);
5b760b6c	92	}
5b760b6c	93
44fffc54	94	UsbCommand response;
	95
	96	if(WaitForResponseTimeout(cmd, &response, ms_timeout))
5b760b6c	97	{
44fffc54	98	//Push it as a string
42daa759	99	lua_pushlstring(L,(const char *)&response,sizeof(UsbCommand));
44fffc54	100
	101	return 1;// return 1 to signal one return value
	102	}else{
5b760b6c	103	//Push a Nil instead
5b760b6c	104	lua_pushnil(L);
44fffc54	105	return 1;// one return value
5b760b6c	106	}
5b760b6c	107	}
2dcdf1a6	108
	109	static int returnToLuaWithError(lua_State L, const char fmt, ...)
	110	{
	111	char buffer[200];
	112	va_list args;
	113	va_start(args,fmt);
	114	vsnprintf(buffer, sizeof(buffer), fmt,args);
	115	va_end(args);
	116
	117	lua_pushnil(L);
	118	lua_pushstring(L,buffer);
	119	return 2;
	120	}
	121
	122	static int l_nonce2key(lua_State *L){
	123
	124	size_t size;
	125	const char *p_uid = luaL_checklstring(L, 1, &size);
	126	if(size != 4) return returnToLuaWithError(L,"Wrong size of uid, got %d bytes, expected 4", (int) size);
	127
	128	const char *p_nt = luaL_checklstring(L, 2, &size);
	129	if(size != 4) return returnToLuaWithError(L,"Wrong size of nt, got %d bytes, expected 4", (int) size);
	130
	131	const char *p_nr = luaL_checklstring(L, 3, &size);
	132	if(size != 4) return returnToLuaWithError(L,"Wrong size of nr, got %d bytes, expected 4", (int) size);
	133
	134	const char *p_par_info = luaL_checklstring(L, 4, &size);
	135	if(size != 8) return returnToLuaWithError(L,"Wrong size of par_info, got %d bytes, expected 8", (int) size);
	136
	137	const char *p_pks_info = luaL_checklstring(L, 5, &size);
	138	if(size != 8) return returnToLuaWithError(L,"Wrong size of ks_info, got %d bytes, expected 8", (int) size);
	139
	140
	141	uint32_t uid = bytes_to_num(( uint8_t *)p_uid,4);
	142	uint32_t nt = bytes_to_num(( uint8_t *)p_nt,4);
	143
	144	uint32_t nr = bytes_to_num(( uint8_t*)p_nr,4);
	145	uint64_t par_info = bytes_to_num(( uint8_t *)p_par_info,8);
	146	uint64_t ks_info = bytes_to_num(( uint8_t *)p_pks_info,8);
	147
	148	uint64_t key = 0;
	149
	150	int retval = nonce2key(uid,nt, nr, par_info,ks_info, &key);
	151
	152	//Push the retval on the stack
	153	lua_pushinteger(L,retval);
05f23c59	154
2dcdf1a6	155	//Push the key onto the stack
05f23c59	156	uint8_t dest_key[8];
05f23c59	157	num_to_bytes(key,sizeof(dest_key),dest_key);
b9697139	158
05f23c59	159	//printf("Pushing to lua stack: %012"llx"\n",key);
05f23c59	160	lua_pushlstring(L,(const char *) dest_key,sizeof(dest_key));
2dcdf1a6	161
	162	return 2; //Two return values
	163	}
42daa759	164	//static int l_PrintAndLog(lua_State *L){ return CmdHF14AMfDump(luaL_checkstring(L, 1));}
44fffc54	165	static int l_clearCommandBuffer(lua_State *L){
44fffc54	166	clearCommandBuffer();
42daa759	167	return 0;
44fffc54	168	}
	169	/**
	170	* @brief l_foobar is a dummy function to test lua-integration with
	171	* @param L
	172	* @return
	173	*/
	174	static int l_foobar(lua_State *L)
	175	{
	176	//Check number of arguments
	177	int n = lua_gettop(L);
	178	printf("foobar called with %d arguments" , n);
	179	lua_settop(L, 0);
	180	printf("Arguments discarded, stack now contains %d elements", lua_gettop(L));
05f23c59	181
	182	// todo: this is not used, where was it intended for?
	183	// UsbCommand response = {CMD_MIFARE_READBL, {1337, 1338, 1339}};
	184
	185	printf("Now returning a uint64_t as a string");
	186	uint64_t x = 0xDEADBEEF;
	187	uint8_t destination[8];
	188	num_to_bytes(x,sizeof(x),destination);
	189	lua_pushlstring(L,(const char *)&x,sizeof(x));
	190	lua_pushlstring(L,(const char *)destination,sizeof(destination));
	191
	192	return 2;
44fffc54	193	}
44fffc54	194
2dcdf1a6	195
44fffc54	196	/**
	197	* @brief Utility to check if a key has been pressed by the user. This method does not block.
	198	* @param L
	199	* @return boolean, true if kbhit, false otherwise.
	200	*/
	201	static int l_ukbhit(lua_State *L)
	202	{
	203	lua_pushboolean(L,ukbhit() ? true : false);
	204	return 1;
	205	}
0a85b725	206	/**
	207	* @brief Calls the command line parser to deal with the command. This enables
	208	* lua-scripts to do stuff like "core.console('hf mf mifare')"
	209	* @param L
	210	* @return
	211	*/
	212	static int l_CmdConsole(lua_State *L)
	213	{
	214	CommandReceived((char *)luaL_checkstring(L, 1));
	215	return 0;
	216	}
	217
77cd612f	218	static int l_iso15693_crc(lua_State *L)
	219	{
	220	// uint16_t Iso15693Crc(uint8_t *v, int n);
	221	size_t size;
	222	const char *v = luaL_checklstring(L, 1, &size);
	223	uint16_t retval = Iso15693Crc((uint8_t *) v, size);
	224	lua_pushinteger(L, (int) retval);
	225	return 1;
	226	}
5b760b6c	227
c15d2bdc	228	/*
	229	Simple AES 128 cbc hook up to OpenSSL.
	230	params: key, input
	231	*/
	232	static int l_aes(lua_State *L)
	233	{
	234	//Check number of arguments
	235	int i;
	236	size_t size;
	237	const char *p_key = luaL_checklstring(L, 1, &size);
	238	if(size != 32) return returnToLuaWithError(L,"Wrong size of key, got %d bytes, expected 32", (int) size);
	239
	240	const char *p_encTxt = luaL_checklstring(L, 2, &size);
	241
	242	unsigned char indata[AES_BLOCK_SIZE] = {0x00};
	243	unsigned char outdata[AES_BLOCK_SIZE] = {0x00};
	244	unsigned char aes_key[AES_BLOCK_SIZE] = {0x00};
	245	unsigned char iv[AES_BLOCK_SIZE] = {0x00};
	246
	247	// convert key to bytearray
	248	for (i = 0; i < 32; i += 2) {
	249	sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]);
	250	}
	251
	252	// convert input to bytearray
	253	for (i = 0; i < 32; i += 2) {
	254	sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
	255	}
	256
	257	AES_KEY key;
	258	AES_set_decrypt_key(aes_key, 128, &key);
	259	AES_cbc_encrypt(indata, outdata, sizeof(indata), &key, iv, AES_DECRYPT);
	260
	261	//Push decrypted array as a string
	262	lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
	263	return 1;// return 1 to signal one return value
	264	}
	265
686f0a17	266	/**
	267	* @brief Sets the lua path to include "./lualibs/?.lua", in order for a script to be
	268	* able to do "require('foobar')" if foobar.lua is within lualibs folder.
	269	* Taken from http://stackoverflow.com/questions/4125971/setting-the-global-lua-path-variable-from-c-c
	270	* @param L
	271	* @param path
	272	* @return
	273	*/
	274	int setLuaPath( lua_State* L, const char* path )
	275	{
	276	lua_getglobal( L, "package" );
	277	lua_getfield( L, -1, "path" ); // get field "path" from table at top of stack (-1)
	278	const char* cur_path = lua_tostring( L, -1 ); // grab path string from top of stack
	279	int requiredLength = strlen(cur_path)+ strlen(path)+10; //A few bytes too many, whatever we can afford it
	280	char * buf = malloc(requiredLength);
	281	snprintf(buf, requiredLength, "%s;%s", cur_path, path);
	282	lua_pop( L, 1 ); // get rid of the string on the stack we just pushed on line 5
	283	lua_pushstring( L, buf ); // push the new one
	284	lua_setfield( L, -2, "path" ); // set the field "path" in table at -2 with value at top of stack
	285	lua_pop( L, 1 ); // get rid of package table from top of stack
	286	return 0; // all done!
	287	}
	288
	289
f057bddb	290	int set_pm3_libraries(lua_State *L)
5b760b6c	291	{
686f0a17	292
5b760b6c	293	static const luaL_Reg libs[] = {
	294	{"SendCommand", l_SendCommand},
	295	{"WaitForResponseTimeout", l_WaitForResponseTimeout},
2dcdf1a6	296	{"nonce2key", l_nonce2key},
42daa759	297	//{"PrintAndLog", l_PrintAndLog},
44fffc54	298	{"foobar", l_foobar},
	299	{"ukbhit", l_ukbhit},
	300	{"clearCommandBuffer", l_clearCommandBuffer},
c15d2bdc	301	{"console", l_CmdConsole},
	302	{"iso15693_crc", l_iso15693_crc},
	303	{"aes", l_aes},
5b760b6c	304	{NULL, NULL}
	305	};
	306
	307	lua_pushglobaltable(L);
	308	// Core library is in this table. Contains '
	309	//this is 'pm3' table
	310	lua_newtable(L);
	311
	312	//Put the function into the hash table.
	313	for (int i = 0; libs[i].name; i++) {
	314	lua_pushcfunction(L, libs[i].func);
	315	lua_setfield(L, -2, libs[i].name);//set the name, pop stack
	316	}
	317	//Name of 'core'
	318	lua_setfield(L, -2, "core");
	319
	320	//-- remove the global environment table from the stack
	321	lua_pop(L, 1);
686f0a17	322
	323	//-- Last but not least, add to the LUA_PATH (package.path in lua)
	324	// so we can load libraries from the ./lualib/ - directory
	325	setLuaPath(L,"./lualibs/?.lua");
	326
5b760b6c	327	return 1;
5b760b6c	328	}