From 5b760b6cac721c6abd036c0689e713b5a7c700c5 Mon Sep 17 00:00:00 2001
From: "martin.holst@gmail.com"
 <martin.holst@gmail.com@ef4ab9da-24cd-11de-8aaa-f3a34680c41f>
Date: Fri, 24 May 2013 21:06:57 +0000
Subject: [PATCH] 'core' library glue

---
 client/scripting.c | 122 +++++++++++++++++++++++++++++++++++++++++++++
 client/scripting.h |  23 +++++++++
 2 files changed, 145 insertions(+)
 create mode 100644 client/scripting.c
 create mode 100644 client/scripting.h

diff --git a/client/scripting.c b/client/scripting.c
new file mode 100644
index 00000000..f9f4999d
--- /dev/null
+++ b/client/scripting.c
@@ -0,0 +1,122 @@
+//-----------------------------------------------------------------------------
+// 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"
+/**
+ * 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
+    UsbCommand *c = (UsbCommand *)lua_touserdata(L, 1);
+    luaL_argcheck(L, c != NULL, 1, "'UsbCommand' expected");
+    SendCommand(c);
+    return 0;
+}
+/**
+ * @brief The following params expected:
+ * uint32_t cmd
+ * size_t ms_timeout
+ * @param L
+ * @return
+ */
+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);
+
+    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))
+    {
+        printf("You sent a timout-value\n");
+        ms_timeout = luaL_checkunsigned(L,2);
+    }
+    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
+    {
+        //Don't return the UsbCommand. Pop it.
+        lua_pop(L,-1);
+        //Push a Nil instead
+        lua_pushnil(L);
+        return 1;
+    }
+}
+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 const luaL_Reg libs[] = {
+        {"SendCommand",                 l_SendCommand},
+        {"WaitForResponseTimeout",      l_WaitForResponseTimeout},
+        {"nonce2key",                   l_nonce2key},
+        {"PrintAndLog",                 l_PrintAndLog},
+        {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);
+    return 1;
+}
diff --git a/client/scripting.h b/client/scripting.h
new file mode 100644
index 00000000..58e5359e
--- /dev/null
+++ b/client/scripting.h
@@ -0,0 +1,23 @@
+//-----------------------------------------------------------------------------
+// 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.
+//-----------------------------------------------------------------------------
+#ifndef SCRIPTING_H__
+#define SCRIPTING_H__
+
+#include <lua.h>
+
+/**
+ * @brief set_libraries loads the core components of pm3 into the 'pm3'
+ *  namespace within the given lua_State
+ * @param L
+ */
+
+void set_pm3_libraries(lua_State *L);
+
+#endif
-- 
2.39.2