//-----------------------------------------------------------------------------
// 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
// the license.
//-----------------------------------------------------------------------------
// Some lua scripting glue to proxmark core.
//-----------------------------------------------------------------------------
#include "scripting.h"
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_clearCommandBuffer(lua_State *L) {
clearCommandBuffer();
return 0;
}
/**
* Enable / Disable fast push mode for lua scripts like mfkeys
* The following params expected:
*
*@brief l_fast_push_mode
* @param L
* @return
*/
static int l_fast_push_mode(lua_State *L) {
luaL_checktype(L, 1, LUA_TBOOLEAN);
bool enable = lua_toboolean(L, 1);
conn.block_after_ACK = enable;
// Disable fast mode and send a dummy command to make it effective
if (enable == false) {
SendCommandNG(CMD_PING, NULL, 0);
WaitForResponseTimeout(CMD_PING, NULL, 1000);
}
//Push the retval on the stack
lua_pushboolean(L, enable);
return 1;
}
/**
* The following params expected:
* @brief l_SendCommandOLD
* @param L - a lua string with the following five params.
* @param cmd must be hexstring, max u64
* @param arg0 must be hexstring, max u64
* @param arg1 must be hexstring, max u64
* @param arg2 must be hexstring, max u64
* @param data must be hexstring less than 1024 chars(512bytes)
* @return
*/
static int l_SendCommandOLD(lua_State *L) {
// SendCommandMIX(CMD_HF_SNIFFER, skippairs, skiptriggers, 0, NULL, 0);
// (uint64_t cmd, uint64_t arg0, uint64_t arg1, uint64_t arg2, void *data, size_t len)
uint64_t cmd, arg0, arg1, arg2;
uint8_t data[PM3_CMD_DATA_SIZE] = {0};
size_t len = 0, size;
//Check number of arguments
int n = lua_gettop(L);
if (n != 5) {
return returnToLuaWithError(L, "You need to supply five parameters");
}
// parse input
cmd = luaL_checknumber(L, 1);
arg0 = luaL_checknumber(L, 2);
arg1 = luaL_checknumber(L, 3);
arg2 = luaL_checknumber(L, 4);
// data
const char *p_data = luaL_checklstring(L, 5, &size);
if (size) {
if (size > 1024)
size = 1024;
uint32_t tmp;
for (int i = 0; i < size; i += 2) {
sscanf(&p_data[i], "%02x", &tmp);
data[i >> 1] = tmp & 0xFF;
len++;
}
}
SendCommandOLD(cmd, arg0, arg1, arg2, data, len);
lua_pushboolean(L, true);
return 1;
}
/**
* The following params expected:
* @brief l_SendCommandMIX
* @param L - a lua string with the following five params.
* @param cmd must be hexstring, max u64
* @param arg0 must be hexstring, max u64
* @param arg1 must be hexstring, max u64
* @param arg2 must be hexstring, max u64
* @param data must be hexstring less than 1024 chars(512bytes)
* @return
*/
static int l_SendCommandMIX(lua_State *L) {
uint64_t cmd, arg0, arg1, arg2;
uint8_t data[PM3_CMD_DATA_SIZE] = {0};
size_t len = 0, size;
// check number of arguments
int n = lua_gettop(L);
if (n != 5)
return returnToLuaWithError(L, "You need to supply five parameters");
// parse input
cmd = luaL_checknumber(L, 1);
arg0 = luaL_checknumber(L, 2);
arg1 = luaL_checknumber(L, 3);
arg2 = luaL_checknumber(L, 4);
// data
const char *p_data = luaL_checklstring(L, 5, &size);
if (size) {
if (size > 1024)
size = 1024;
uint32_t tmp;
for (int i = 0; i < size; i += 2) {
sscanf(&p_data[i], "%02x", &tmp);
data[i >> 1] = tmp & 0xFF;
len++;
}
}
SendCommandMIX(cmd, arg0, arg1, arg2, data, len);
lua_pushboolean(L, true);
return 1;
}
/**
* The following params expected:
* @brief l_SendCommandMIX
* @param L - a lua string with the following two params.
* @param cmd must be hexstring, max u64
* @param data must be hexstring less than 1024 chars(512bytes)
* @return
*/
static int l_SendCommandNG(lua_State *L) {
uint8_t data[PM3_CMD_DATA_SIZE] = {0};
size_t len = 0, size;
// check number of arguments
int n = lua_gettop(L);
if (n != 2)
return returnToLuaWithError(L, "You need to supply two parameters");
// parse input
uint16_t cmd = luaL_checknumber(L, 1);
// data
const char *p_data = luaL_checklstring(L, 2, &size);
if (size) {
if (size > 1024)
size = 1024;
uint32_t tmp;
for (int i = 0; i < size; i += 2) {
sscanf(&p_data[i], "%02x", &tmp);
data[i >> 1] = tmp & 0xFF;
len++;
}
}
SendCommandNG(cmd, data, len);
lua_pushboolean(L, true);
return 1;
}
/**
* @brief The following params expected:
* uint8_t *dest
* int bytes
* int start_index
* @param L
* @return
*/
static int l_GetFromBigBuf(lua_State *L) {
int len = 0, startindex = 0;
//Check number of arguments
int n = lua_gettop(L);
if (n == 0) {
return returnToLuaWithError(L, "You need to supply number of bytes and startindex");
}
if (n >= 2) {
startindex = luaL_checknumber(L, 1);
len = luaL_checknumber(L, 2);
}
if (len == 0) {
return returnToLuaWithError(L, "You need to supply number of bytes larger than zero");
}
uint8_t *data = calloc(len, sizeof(uint8_t));
if (!data) {
return returnToLuaWithError(L, "Allocating memory failed");
}
if (!GetFromDevice(BIG_BUF, data, len, startindex, NULL, 2500, false)) {
free(data);
return returnToLuaWithError(L, "command execution time out");
}
//Push it as a string
lua_pushlstring(L, (const char *)data, len);
free(data);
return 1; // return 1 to signal one return value
}
/**
* @brief The following params expected:
* uint8_t *dest
* int bytes
* int start_index
* @param L
* @return
*/
static int l_GetFromFlashMem(lua_State *L) {
if (IfPm3Flash()) {
int len = 0, startindex = 0;
int n = lua_gettop(L);
if (n == 0)
return returnToLuaWithError(L, "You need to supply number of bytes and startindex");
if (n >= 2) {
startindex = luaL_checknumber(L, 1);
len = luaL_checknumber(L, 2);
}
if (len == 0)
return returnToLuaWithError(L, "You need to supply number of bytes larger than zero");
uint8_t *data = calloc(len, sizeof(uint8_t));
if (!data)
return returnToLuaWithError(L, "Allocating memory failed");
if (!GetFromDevice(FLASH_MEM, data, len, startindex, NULL, -1, false)) {
free(data);
return returnToLuaWithError(L, "command execution time out");
}
lua_pushlstring(L, (const char *)data, len);
free(data);
return 1;
} else {
return returnToLuaWithError(L, "No FLASH MEM support");
}
}
/**
* @brief The following params expected:
* uint32_t cmd
* size_t ms_timeout
* @param L
* @return struct of PacketResponseNG
*/
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)
return returnToLuaWithError(L, "You need to supply at least command to wait for");
// extract first param. cmd byte to look for
if (n >= 1)
cmd = luaL_checkunsigned(L, 1);
// extract second param. timeout value
if (n >= 2)
ms_timeout = luaL_checkunsigned(L, 2);
PacketResponseNG resp;
if (WaitForResponseTimeout(cmd, &resp, ms_timeout) == false)
return returnToLuaWithError(L, "No response from the device");
char foo[sizeof(PacketResponseNG)];
n = 0;
memcpy(foo + n, &resp.cmd, sizeof(resp.cmd));
n += sizeof(resp.cmd);
memcpy(foo + n, &resp.length, sizeof(resp.length));
n += sizeof(resp.length);
memcpy(foo + n, &resp.magic, sizeof(resp.magic));
n += sizeof(resp.magic);
memcpy(foo + n, &resp.status, sizeof(resp.status));
n += sizeof(resp.status);
memcpy(foo + n, &resp.crc, sizeof(resp.crc));
n += sizeof(resp.crc);
memcpy(foo + n, &resp.oldarg[0], sizeof(resp.oldarg[0]));
n += sizeof(resp.oldarg[0]);
memcpy(foo + n, &resp.oldarg[1], sizeof(resp.oldarg[1]));
n += sizeof(resp.oldarg[1]);
memcpy(foo + n, &resp.oldarg[2], sizeof(resp.oldarg[2]));
n += sizeof(resp.oldarg[2]);
memcpy(foo + n, resp.data.asBytes, sizeof(resp.data));
n += sizeof(resp.data);
memcpy(foo + n, &resp.ng, sizeof(resp.ng));
n += sizeof(resp.ng);
(void) n;
//Push it as a string
lua_pushlstring(L, (const char *)&foo, sizeof(foo));
return 1;
}
static int l_mfDarkside(lua_State *L) {
uint32_t blockno = 0;
uint32_t keytype = MIFARE_AUTH_KEYA;
uint64_t key = 0;
size_t size;
//Check number of arguments
int n = lua_gettop(L);
switch (n) {
case 2: {
const char *p_keytype = luaL_checklstring(L, 2, &size);
if (size != 2) return returnToLuaWithError(L, "Wrong size of keytype, got %d bytes, expected 1", (int) size);
sscanf(p_keytype, "%x", &keytype);
}
case 1: {
const char *p_blockno = luaL_checklstring(L, 1, &size);
if (size != 2) return returnToLuaWithError(L, "Wrong size of blockno, got %d bytes, expected 2", (int) size);
sscanf(p_blockno, "%02x", &blockno);
break;
}
default :
break;
}
int retval = mfDarkside(blockno & 0xFF, keytype & 0xFF, &key);
uint8_t dest_key[8];
num_to_bytes(key, sizeof(dest_key), dest_key);
//Push the retval on the stack
lua_pushinteger(L, retval);
lua_pushlstring(L, (const char *) dest_key, sizeof(dest_key));
return 2;
}
/**
* @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?
// PacketCommandOLD response = {CMD_MIFARE_READBL, {1337, 1338, 1339}, {{0}}};
printf("Now returning a uint64_t as a string");
uint64_t x = 0xDEADC0DE;
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_kbd_enter_pressed(lua_State *L) {
lua_pushboolean(L, kbd_enter_pressed() ? 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) {
uint32_t tmp;
unsigned char buf[PM3_CMD_DATA_SIZE] = {0x00};
size_t size = 0;
const char *data = luaL_checklstring(L, 1, &size);
for (int i = 0; i < size; i += 2) {
sscanf(&data[i], "%02x", &tmp);
buf[i / 2] = tmp & 0xFF;
}
size /= 2;
compute_crc(CRC_15693, buf, size, &buf[size], &buf[size + 1]);
lua_pushlstring(L, (const char *)&buf, size + 2);
return 1;
}
static int l_iso14443b_crc(lua_State *L) {
uint32_t tmp;
unsigned char buf[PM3_CMD_DATA_SIZE] = {0x00};
size_t size = 0;
const char *data = luaL_checklstring(L, 1, &size);
for (int i = 0; i < size; i += 2) {
sscanf(&data[i], "%02x", &tmp);
buf[i / 2] = tmp & 0xFF;
}
size /= 2;
compute_crc(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;
uint32_t tmp;
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", &tmp);
indata[i / 2] = tmp & 0xFF;
sscanf(&p_key[i], "%02x", &tmp);
aes_key[i / 2] = tmp & 0xFF;
}
mbedtls_aes_context ctx;
mbedtls_aes_init(&ctx);
mbedtls_aes_setkey_dec(&ctx, aes_key, 128);
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_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;
uint32_t tmp;
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", &tmp);
indata[i / 2] = tmp & 0xFF;
sscanf(&p_key[i], "%02x", &tmp);
aes_key[i / 2] = tmp & 0xFF;
}
mbedtls_aes_context ctx;
mbedtls_aes_init(&ctx);
mbedtls_aes_setkey_dec(&ctx, aes_key, 128);
mbedtls_aes_crypt_ecb(&ctx, MBEDTLS_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;
uint32_t tmp;
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", &tmp);
indata[i / 2] = tmp & 0xFF;
sscanf(&p_key[i], "%02x", &tmp);
aes_key[i / 2] = tmp & 0xFF;
}
mbedtls_aes_context ctx;
mbedtls_aes_init(&ctx);
mbedtls_aes_setkey_enc(&ctx, aes_key, 128);
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_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;
uint32_t tmp;
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", &tmp);
indata[i / 2] = tmp & 0xFF;
sscanf(&p_key[i], "%02x", &tmp);
aes_key[i / 2] = tmp & 0xFF;
}
mbedtls_aes_context ctx;
mbedtls_aes_init(&ctx);
mbedtls_aes_setkey_enc(&ctx, aes_key, 128);
mbedtls_aes_crypt_ecb(&ctx, MBEDTLS_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_pushunsigned(L, retval);
return 1;
}
static int l_crc16(lua_State *L) {
size_t size;
const char *p_str = luaL_checklstring(L, 1, &size);
uint16_t checksum = Crc16ex(CRC_CCITT, (uint8_t *) p_str, size);
lua_pushunsigned(L, checksum);
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;
}
// TO BE IMPLEMENTED
static int l_crc64_ecma182(lua_State *L) {
//size_t size;
uint64_t crc = 0;
unsigned char outdata[8] = {0x00};
//const char *p_str = luaL_checklstring(L, 1, &size);
//init
//crc64_ecma182(NULL, 0, &crc);
crc = 0x338103260CC4;
// calc hash
//crc64_ecma182((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};
mbedtls_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.
#define NMODELS 106
int count = 0;
uint8_t in_width = luaL_checkunsigned(L, 1);
if (in_width > 89)
return returnToLuaWithError(L, "Width cannot exceed 89, got %d", in_width);
uint8_t width[NMODELS];
memset(width, 0, sizeof(width));
char *models[NMODELS];
width[0] = in_width;
if (!GetModels(models, &count, width))
return returnToLuaWithError(L, "didn't find any models");
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];
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;
}
static int l_hardnested(lua_State *L) {
bool haveTarget = true;
size_t size;
uint32_t tmp;
const char *p_blockno = luaL_checklstring(L, 1, &size);
if (size != 2)
return returnToLuaWithError(L, "Wrong size of blockNo, got %d bytes, expected 2", (int) size);
const char *p_keytype = luaL_checklstring(L, 2, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of keyType, got %d bytes, expected 1", (int) size);
const char *p_key = luaL_checklstring(L, 3, &size);
if (size != 12)
return returnToLuaWithError(L, "Wrong size of key, got %d bytes, expected 12", (int) size);
const char *p_trg_blockno = luaL_checklstring(L, 4, &size);
if (size != 2)
return returnToLuaWithError(L, "Wrong size of trgBlockNo, got %d bytes, expected 2", (int) size);
const char *p_trg_keytype = luaL_checklstring(L, 5, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of trgKeyType, got %d bytes, expected 1", (int) size);
const char *p_trgkey = luaL_checklstring(L, 6, &size);
if (size != 12)
haveTarget = false;
const char *p_nonce_file_read = luaL_checklstring(L, 7, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of nonce_file_read, got %d bytes, expected 1", (int) size);
const char *p_nonce_file_write = luaL_checklstring(L, 8, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of nonce_file_write, got %d bytes, expected 1", (int) size);
const char *p_slow = luaL_checklstring(L, 9, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of slow, got %d bytes, expected 1", (int) size);
const char *p_tests = luaL_checklstring(L, 10, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of tests, got %d bytes, expected 1", (int) size);
char filename[FILE_PATH_SIZE] = "nonces.bin";
const char *p_filename = luaL_checklstring(L, 11, &size);
if (size != 0)
memcpy(filename, p_filename, FILE_PATH_SIZE - 1);
uint32_t blockNo = 0, keyType = 0;
uint32_t trgBlockNo = 0, trgKeyType = 0;
uint32_t slow = 0, tests = 0;
uint32_t nonce_file_read = 0, nonce_file_write = 0;
sscanf(p_blockno, "%02x", &blockNo);
sscanf(p_keytype, "%x", &keyType);
sscanf(p_trg_blockno, "%02x", &trgBlockNo);
sscanf(p_trg_keytype, "%x", &trgKeyType);
sscanf(p_nonce_file_read, "%x", &nonce_file_read);
sscanf(p_nonce_file_write, "%x", &nonce_file_write);
sscanf(p_slow, "%x", &slow);
sscanf(p_tests, "%x", &tests);
uint8_t key[6] = {0, 0, 0, 0, 0, 0};
uint8_t trgkey[6] = {0, 0, 0, 0, 0, 0};
for (int i = 0; i < 12; i += 2) {
sscanf(&p_key[i], "%02x", &tmp);
key[i / 2] = tmp & 0xFF;
if (haveTarget) {
sscanf(&p_trgkey[i], "%02x", &tmp);
trgkey[i / 2] = tmp & 0xFF;
}
}
uint64_t foundkey = 0;
int retval = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, haveTarget ? trgkey : NULL, nonce_file_read, nonce_file_write, slow, tests, &foundkey, filename);
DropField();
//Push the key onto the stack
uint8_t dest_key[6];
num_to_bytes(foundkey, sizeof(dest_key), dest_key);
//Push the retval on the stack
lua_pushinteger(L, retval);
lua_pushlstring(L, (const char *) dest_key, sizeof(dest_key));
return 2; //Two return values
}
/**
* @brief l_validate_prng is a function to test is a nonce is using the weak PRNG
* detection = 1 == weak, 0 == hard , -1 = failed
* @param L
* @return
*/
static int l_detect_prng(lua_State *L) {
int res = detect_classic_prng();
lua_pushinteger(L, res);
return 1;
}
/*
* @brief l_keygen_algoD is a function to calculate pwd/pack using UID, by algo D
* @param L
* @return
*/
static int l_keygen_algoD(lua_State *L) {
size_t size;
uint32_t tmp;
const char *p_uid = luaL_checklstring(L, 1, &size);
if (size != 14)
return returnToLuaWithError(L, "Wrong size of UID, got %d bytes, expected 14", (int) size);
uint8_t uid[7] = {0, 0, 0, 0, 0, 0, 0};
for (int i = 0; i < 14; i += 2) {
sscanf(&p_uid[i], "%02x", &tmp);
uid[i / 2] = tmp & 0xFF;
}
uint32_t pwd = ul_ev1_pwdgenD(uid);
uint16_t pack = ul_ev1_packgenD(uid);
lua_pushunsigned(L, pwd);
lua_pushunsigned(L, pack);
return 2;
}
/*
Read T55Xx block.
param1 uint8_t block
param2 bool page1
param3 bool override
param4 uint32_t password
*/
static int l_T55xx_readblock(lua_State *L) {
//Check number of arguments
int n = lua_gettop(L);
if (n != 4)
return returnToLuaWithError(L, "Wrong number of arguments, got %d bytes, expected 4", n);
uint32_t block, usepage1, override, password;
bool usepwd;
size_t size;
const char *p_blockno = luaL_checklstring(L, 1, &size);
if (size < 1 || size > 2)
return returnToLuaWithError(L, "Wrong size of blockNo, got %d, expected 1 or 2", (int) size);
sscanf(p_blockno, "%x", &block);
const char *p_usepage1 = luaL_checklstring(L, 2, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of usePage1, got %d, expected 1", (int) size);
sscanf(p_usepage1, "%x", &usepage1);
const char *p_override = luaL_checklstring(L, 3, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of override, got %d, expected 1", (int) size);
sscanf(p_override, "%x", &override);
const char *p_pwd = luaL_checklstring(L, 4, &size);
if (size == 0) {
usepwd = false;
} else {
if (size != 8)
return returnToLuaWithError(L, "Wrong size of pwd, got %d , expected 8", (int) size);
sscanf(p_pwd, "%08x", &password);
usepwd = true;
}
//Password mode
if (usepwd) {
// try reading the config block and verify that PWD bit is set before doing this!
if (!override) {
if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, false, 0)) {
return returnToLuaWithError(L, "Failed to read config block");
}
if (!tryDetectModulation()) {
PrintAndLogEx(NORMAL, "Safety Check: Could not detect if PWD bit is set in config block. Exits.");
return 0;
} else {
PrintAndLogEx(NORMAL, "Safety Check: PWD bit is NOT set in config block. Reading without password...");
usepwd = false;
usepage1 = false;
}
} else {
PrintAndLogEx(NORMAL, "Safety Check Overriden - proceeding despite risk");
}
}
if (!AquireData(usepage1, block, usepwd, password)) {
return returnToLuaWithError(L, "Failed to aquire data from card");
}
if (!DecodeT55xxBlock()) {
return returnToLuaWithError(L, "Failed to decode signal");
}
uint32_t blockData = 0;
if (GetT55xxBlockData(&blockData) == false) {
return returnToLuaWithError(L, "Failed to get actual data");
}
lua_pushunsigned(L, blockData);
return 1;
}
// arg 1 = pwd
// arg 2 = use GB
static int l_T55xx_detect(lua_State *L) {
bool useGB = false, usepwd = false, isok;
uint32_t gb, password = 0;
size_t size;
//Check number of arguments
int n = lua_gettop(L);
switch (n) {
case 2: {
const char *p_gb = luaL_checklstring(L, 2, &size);
if (size != 1)
return returnToLuaWithError(L, "Wrong size of useGB, got %d , expected 1", (int) size);
sscanf(p_gb, "%u", &gb);
useGB = (gb) ? true : false;
printf("p_gb size %zu | %c \n", size, useGB ? 'Y' : 'N');
}
case 1: {
const char *p_pwd = luaL_checklstring(L, 1, &size);
if (size == 0) {
usepwd = false;
} else {
if (size != 8)
return returnToLuaWithError(L, "Wrong size of pwd, got %d , expected 8", (int) size);
sscanf(p_pwd, "%08x", &password);
usepwd = true;
}
break;
}
default :
break;
}
if (!useGB) {
isok = AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, usepwd, password);
if (isok == false) {
return returnToLuaWithError(L, "Failed to aquire LF signal data");
}
}
isok = tryDetectModulation();
if (isok == false) {
return returnToLuaWithError(L, "Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
}
lua_pushinteger(L, isok);
lua_pushstring(L, "Success");
return 2;
}
//
static int l_ndefparse(lua_State *L) {
size_t size;
//Check number of arguments
int n = lua_gettop(L);
if (n != 3) {
return returnToLuaWithError(L, "You need to supply three parameters");
}
size_t datalen = luaL_checknumber(L, 1);
bool verbose = luaL_checknumber(L, 2);
uint8_t *data = calloc(datalen, sizeof(uint8_t));
if (data == 0) {
return returnToLuaWithError(L, "Allocating memory failed");
}
// data
const char *p_data = luaL_checklstring(L, 3, &size);
if (size) {
if (size > (datalen << 1))
size = (datalen << 1);
uint32_t tmp;
for (int i = 0; i < size; i += 2) {
sscanf(&p_data[i], "%02x", &tmp);
data[i >> 1] = tmp & 0xFF;
}
}
int res = NDEFDecodeAndPrint(data, datalen, verbose);
lua_pushinteger(L, res);
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
*/
static 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 = calloc(requiredLength, sizeof(char));
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[] = {
{"SendCommandOLD", l_SendCommandOLD},
{"SendCommandMIX", l_SendCommandMIX},
{"SendCommandNG", l_SendCommandNG},
{"GetFromBigBuf", l_GetFromBigBuf},
{"GetFromFlashMem", l_GetFromFlashMem},
{"WaitForResponseTimeout", l_WaitForResponseTimeout},
{"mfDarkside", l_mfDarkside},
{"foobar", l_foobar},
{"kbd_enter_pressed", l_kbd_enter_pressed},
{"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},
{"crc64_ecma182", l_crc64_ecma182},
{"sha1", l_sha1},
{"reveng_models", l_reveng_models},
{"reveng_runmodel", l_reveng_runmodel},
{"hardnested", l_hardnested},
{"detect_prng", l_detect_prng},
// {"keygen.algoA", l_keygen_algoA},
// {"keygen.algoB", l_keygen_algoB},
// {"keygen.algoC", l_keygen_algoC},
{"keygen_algo_d", l_keygen_algoD},
{"t55xx_readblock", l_T55xx_readblock},
{"t55xx_detect", l_T55xx_detect},
{"ndefparse", l_ndefparse},
{"fast_push_mode", l_fast_push_mode},
{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);
//--add to the LUA_PATH (package.path in lua)
// so we can load scripts from the ./scripts/ - directory
char scripts_path[strlen(get_my_executable_directory()) + strlen(LUA_SCRIPTS_DIRECTORY) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
strcpy(scripts_path, get_my_executable_directory());
strcat(scripts_path, LUA_SCRIPTS_DIRECTORY);
strcat(scripts_path, LUA_LIBRARIES_WILDCARD);
setLuaPath(L, scripts_path);
//-- Last but not least, add to the LUA_PATH (package.path in lua)
// so we can load libraries from the ./lualib/ - directory
char libraries_path[strlen(get_my_executable_directory()) + strlen(LUA_LIBRARIES_DIRECTORY) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
strcpy(libraries_path, get_my_executable_directory());
strcat(libraries_path, LUA_LIBRARIES_DIRECTORY);
strcat(libraries_path, LUA_LIBRARIES_WILDCARD);
setLuaPath(L, libraries_path);
return 1;
}