+/**
+ * @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
+}
+
+static int l_crc16(lua_State *L)
+{
+ size_t size;
+ const char *p_str = luaL_checklstring(L, 1, &size);
+
+ unsigned short retval = crc16_ccitt( p_str, size);
+ lua_pushinteger(L, (int) retval);
+ 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
+ return 0; // all done!
+}
+
projects / proxmark3-svn / blobdiff