//-----------------------------------------------------------------------------
// Copyright (C) 2013 m h swende <martin at swende.se>
+// Modified 2015,2016, iceman
//
// 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
//-----------------------------------------------------------------------------
// 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"
+
/**
* The following params expected:
* UsbCommand c
==> A 544 byte buffer will do.
**/
//Pop cmd
- UsbCommand *c = (UsbCommand *)lua_touserdata(L, 1);
- luaL_argcheck(L, c != NULL, 1, "'UsbCommand' expected");
- SendCommand(c);
- return 0;
+ 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;
+ }
+
+ SendCommand((UsbCommand* )data);
+ return 0; // no return values
}
/**
* @brief The following params expected:
*/
static int l_WaitForResponseTimeout(lua_State *L){
- //pop cmd
- uint32_t cmd = luaL_checkunsigned(L,1);
- printf("in l_WaitForResponseTimeout, got cmd 0x%0x\n",(int) cmd);
- //UsbCommand response;
-
- //We allocate the usbcommand as userdata on the Lua-stack
- size_t nbytes = sizeof(UsbCommand);
-
- UsbCommand *response = (UsbCommand *)lua_newuserdata(L, nbytes);
+ uint32_t cmd = 0;
+ size_t ms_timeout = -1;
- size_t ms_timeout = 2000;
- //Did the user send a timeout ?
- //Check if the current top of stack is an integer
-
- if(lua_isnumber( L, 2))
+ //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)
{
- printf("You sent a timout-value\n");
+ //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);
}
- printf("Timeout set to %dms\n" , (int) ms_timeout);
- if(WaitForResponseTimeout(cmd, response, ms_timeout))
- {
- //Return the UsbCommand as userdata
- //the usbcommand is already on the stack
- // return 1 to signal one return value
- return 1;
- }else
+ UsbCommand response;
+ if(WaitForResponseTimeout(cmd, &response, ms_timeout))
{
- //Don't return the UsbCommand. Pop it.
- lua_pop(L,-1);
+ //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;
+ return 1;// one return value
}
}
-static int l_nonce2key(lua_State *L){ return CmdHF14AMfRdSc(luaL_checkstring(L, 1));}
-static int l_PrintAndLog(lua_State *L){ return CmdHF14AMfDump(luaL_checkstring(L, 1));}
-void set_pm3_libraries(lua_State *L)
+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;
+}
+
+static int l_iso14443b_crc(lua_State *L)
+{
+ /* void ComputeCrc14443(int CrcType,
+ const unsigned char *Data, int Length,
+ unsigned char *TransmitFirst,
+ unsigned char *TransmitSecond)
+ */
+ size_t size = 0;
+ const char *data = luaL_checklstring(L, 1, &size);
+
+ unsigned char buf[USB_CMD_DATA_SIZE] = {0x00};
+
+ for (int i = 0; i < size; i += 2)
+ sscanf(&data[i], "%02x", (unsigned int *)&buf[i / 2]);
+
+ size /= 2;
+ ComputeCrc14443(CRC_14443_B, buf, size, &buf[size], &buf[size+1]);
+ lua_pushlstring(L, (const char *)&buf, size+2);
+ return 1;
+}
+
+/*
+ Simple AES 128 cbc hook up to OpenSSL.
+ params: key, input
+*/
+static int l_aes128decrypt_cbc(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[16] = {0x00};
+ unsigned char outdata[16] = {0x00};
+ unsigned char aes_key[16] = {0x00};
+ unsigned char iv[16] = {0x00};
+
+ // convert key to bytearray and convert input to bytearray
+ for (i = 0; i < 32; i += 2) {
+ sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]);
+ sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
+ }
+
+ aes_context ctx;
+ aes_init(&ctx);
+ aes_setkey_dec(&ctx, aes_key, 128);
+ aes_crypt_cbc(&ctx, AES_DECRYPT, sizeof(indata), iv, indata, outdata );
+ //Push decrypted array as a string
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;// return 1 to signal one return value
+}
+static int l_aes128decrypt_ecb(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[16] = {0x00};
+ unsigned char outdata[16] = {0x00};
+ unsigned char aes_key[16] = {0x00};
+
+ // convert key to bytearray and convert input to bytearray
+ for (i = 0; i < 32; i += 2) {
+ sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]);
+ sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
+ }
+ aes_context ctx;
+ aes_init(&ctx);
+ aes_setkey_dec(&ctx, aes_key, 128);
+ aes_crypt_ecb(&ctx, AES_DECRYPT, indata, outdata );
+
+ //Push decrypted array as a string
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;// return 1 to signal one return value
+}
+
+static int l_aes128encrypt_cbc(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_txt = luaL_checklstring(L, 2, &size);
+
+ unsigned char indata[16] = {0x00};
+ unsigned char outdata[16] = {0x00};
+ unsigned char aes_key[16] = {0x00};
+ unsigned char iv[16] = {0x00};
+
+ for (i = 0; i < 32; i += 2) {
+ sscanf(&p_txt[i], "%02x", (unsigned int *)&indata[i / 2]);
+ sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
+ }
+
+ aes_context ctx;
+ aes_init(&ctx);
+ aes_setkey_enc(&ctx, aes_key, 128);
+ aes_crypt_cbc(&ctx, AES_ENCRYPT, sizeof(indata), iv, indata, outdata );
+ //Push encrypted array as a string
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;// return 1 to signal one return value
+}
+
+static int l_aes128encrypt_ecb(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_txt = luaL_checklstring(L, 2, &size);
+
+ unsigned char indata[16] = {0x00};
+ unsigned char outdata[16] = {0x00};
+ unsigned char aes_key[16] = {0x00};
+
+ for (i = 0; i < 32; i += 2) {
+ sscanf(&p_txt[i], "%02x", (unsigned int *)&indata[i / 2]);
+ sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
+ }
+ aes_context ctx;
+ aes_init(&ctx);
+ aes_setkey_enc(&ctx, aes_key, 128);
+ aes_crypt_ecb(&ctx, AES_ENCRYPT, indata, outdata );
+ //Push encrypted array as a string
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;// return 1 to signal one return value
+}
+
+static int l_crc8legic(lua_State *L)
+{
+ size_t size;
+ const char *p_str = luaL_checklstring(L, 1, &size);
+
+ uint16_t retval = CRC8Legic( (uint8_t*) p_str, size);
+ lua_pushinteger(L, (int) retval);
+ return 1;
+}
+
+static int l_crc16(lua_State *L)
+{
+ size_t size;
+ const char *p_str = luaL_checklstring(L, 1, &size);
+
+ uint16_t retval = crc16_ccitt( (uint8_t*) p_str, size);
+ lua_pushinteger(L, (int) retval);
+ return 1;
+}
+
+static int l_crc64(lua_State *L)
+{
+ size_t size;
+ uint64_t crc = 0;
+ unsigned char outdata[8] = {0x00};
+
+ const char *p_str = luaL_checklstring(L, 1, &size);
+
+ crc64( (uint8_t*) p_str, size, &crc);
+
+ outdata[0] = (uint8_t)(crc >> 56) & 0xff;
+ outdata[1] = (uint8_t)(crc >> 48) & 0xff;
+ outdata[2] = (uint8_t)(crc >> 40) & 0xff;
+ outdata[3] = (uint8_t)(crc >> 32) & 0xff;
+ outdata[4] = (uint8_t)(crc >> 24) & 0xff;
+ outdata[5] = (uint8_t)(crc >> 16) & 0xff;
+ outdata[6] = (uint8_t)(crc >> 8) & 0xff;
+ outdata[7] = crc & 0xff;
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;
+}
+
+static int l_sha1(lua_State *L)
+{
+ size_t size;
+ const char *p_str = luaL_checklstring(L, 1, &size);
+ unsigned char outdata[20] = {0x00};
+ sha1( (uint8_t*) p_str, size, outdata);
+ lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
+ return 1;
+}
+
+static int l_reveng_models(lua_State *L){
+
+ // This array needs to be adjusted if RevEng adds more crc-models.
+ char *models[100];
+ int count = 0;
+ int in_width = luaL_checkinteger(L, 1);
+
+ if( in_width > 89 ) return returnToLuaWithError(L,"Width cannot exceed 89, got %d", in_width);
+
+ // This array needs to be adjusted if RevEng adds more crc-models.
+ uint8_t width[100];
+ width[0] = (uint8_t)in_width;
+ int ans = GetModels(models, &count, width);
+ if (!ans) return 0;
+
+ lua_newtable(L);
+
+ for (int i = 0; i < count; i++){
+ lua_pushstring(L, (const char*)models[i]);
+ lua_rawseti(L,-2,i+1);
+ free(models[i]);
+ }
+
+ return 1;
+}
+
+//Called with 4 parameters.
+// inModel ,string containing the crc model name: 'CRC-8'
+// inHexStr ,string containing the hex representation of the data that will be used for CRC calculations.
+// reverse ,int 0/1 (bool) if 1, calculate the reverse CRC
+// endian ,char, 'B','b','L','l','t','r' describing if Big-Endian or Little-Endian should be used in different combinations.
+//
+// outputs: string with hex representation of the CRC result
+static int l_reveng_RunModel(lua_State *L){
+ //-c || -v
+ //inModel = valid model name string - CRC-8
+ //inHexStr = input hex string to calculate crc on
+ //reverse = reverse calc option if true
+ //endian = {0 = calc default endian input and output, b = big endian input and output, B = big endian output, r = right justified
+ // l = little endian input and output, L = little endian output only, t = left justified}
+ //result = calculated crc hex string
+ char result[50];
+
+ const char *inModel = luaL_checkstring(L, 1);
+ const char *inHexStr = luaL_checkstring(L, 2);
+ bool reverse = lua_toboolean(L, 3);
+ const char endian = luaL_checkstring(L, 4)[0];
+
+ //PrintAndLog("mod: %s, hex: %s, rev %d", inModel, inHexStr, reverse);
+ // int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *result)
+ int ans = RunModel( (char *)inModel, (char *)inHexStr, reverse, endian, result);
+ if (!ans)
+ return returnToLuaWithError(L,"Reveng failed");
+
+ lua_pushstring(L, (const char*)result);
+ return 1;
+}
+
+/**
+ * @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
+ free(buf);
+ 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},
+ //{"PrintAndLog", l_PrintAndLog},
+ {"foobar", l_foobar},
+ {"ukbhit", l_ukbhit},
+ {"clearCommandBuffer", l_clearCommandBuffer},
+ {"console", l_CmdConsole},
+ {"iso15693_crc", l_iso15693_crc},
+ {"iso14443b_crc", l_iso14443b_crc},
+ {"aes128_decrypt", l_aes128decrypt_cbc},
+ {"aes128_decrypt_ecb", l_aes128decrypt_ecb},
+ {"aes128_encrypt", l_aes128encrypt_cbc},
+ {"aes128_encrypt_ecb", l_aes128encrypt_ecb},
+ {"crc8legic", l_crc8legic},
+ {"crc16", l_crc16},
+ {"crc64", l_crc64},
+ {"sha1", l_sha1},
+ {"reveng_models", l_reveng_models},
+ {"reveng_runmodel", l_reveng_RunModel},
{NULL, NULL}
};
//-- 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;
}
projects / proxmark3-svn / blobdiff