@Marshmellow42 additions:

[proxmark3-svn] / client / scripting.c

diff --git a/client/scripting.c b/client/scripting.c
index 5d9ce55a716b3c8380d26c27b1a51d95e0bf682c..aae8c3ca6845ff09f281373ec3cbf03dd4e91122 100644 (file)
--- a/client/scripting.c
+++ b/client/scripting.c
@@ -1,5 +1,6 @@
 //-----------------------------------------------------------------------------
 // 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
@@ -7,23 +8,8 @@
 //-----------------------------------------------------------------------------
 // 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 "iso14443crc.h"
-#include "../common/crc16.h"
-#include "../common/crc64.h"
-#include "../common/sha1.h"
-#include "aes.h"
-#include "cmdcrc.h"
+
 /**
  * The following params expected:
  *  UsbCommand c
@@ -96,7 +82,6 @@ static int l_WaitForResponseTimeout(lua_State *L){
     }
 
     UsbCommand response;
-
     if(WaitForResponseTimeout(cmd, &response, ms_timeout))
     {
         //Push it as a string
@@ -236,18 +221,17 @@ static int l_iso14443b_crc(lua_State *L)
                      unsigned char *TransmitFirst,
                      unsigned char *TransmitSecond)
        */
-       unsigned char buf[USB_CMD_DATA_SIZE];
-    size_t len = 0;    
-    const char *data = luaL_checklstring(L, 1, &len);
-       if (USB_CMD_DATA_SIZE < len)
-               len =  USB_CMD_DATA_SIZE-2;
+    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 < len; i += 2) {
-               sscanf(&data[i], "%02x", (unsigned int *)&buf[i / 2]);
-       }       
-       ComputeCrc14443(CRC_14443_B, buf, len, &buf[len], &buf[len+1]);
+       for (int i = 0; i < size; i += 2)
+               sscanf(&data[i], "%02x", (unsigned int *)&buf[i / 2]);  
        
-    lua_pushlstring(L, (const char *)&buf, len+2);
+       size /= 2;      
+       ComputeCrc14443(CRC_14443_B, buf, size, &buf[size], &buf[size+1]);      
+    lua_pushlstring(L, (const char *)&buf, size+2);
     return 1;
 }
 
@@ -369,6 +353,16 @@ static int l_aes128encrypt_ecb(lua_State *L)
        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;
@@ -510,6 +504,7 @@ int set_pm3_libraries(lua_State *L)
                {"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},