--- gvpe/src/device.h	2004/01/17 01:18:36	1.15
+++ gvpe/src/device.h	2007/12/02 00:09:36	1.21
@@ -1,8 +1,10 @@
 /*
     device.h -- generic header for device.c
-    Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>
+    Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
  
-    This program is free software; you can redistribute it and/or modify
+    This file is part of GVPE.
+
+    GVPE is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
@@ -13,24 +15,26 @@
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    along with gvpe; if not, write to the Free Software
+    Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#ifndef VPE_DEVICE_H__
-#define VPE_DEVICE_H__
+#ifndef GVPE_DEVICE_H__
+#define GVPE_DEVICE_H__
 
-#define IFNAMESIZE 256 // be conservative
+#include "config.h"
 
-#include "gettext.h"
+#define IFNAMESIZE 256 // be conservative
 
 #include "global.h"
 #include "util.h"
 
-struct net_packet {
+struct net_packet
+{
   u32 len; // actually u16, but padding...
 
   u8 &operator[] (u16 offset) const;
+  u8 *at (u16 offset) const;
 
   void unshift_hdr (u16 hdrsize)
     {
@@ -78,7 +82,8 @@
   void operator delete (void *p);
 };
 
-struct data_packet : net_packet {
+struct data_packet : net_packet
+{
   u8 data_[MAXSIZE];
 };
 
@@ -88,13 +93,21 @@
   return ((data_packet *)this)->data_[offset];
 }
 
-struct tap_packet : net_packet {
+inline 
+u8 *net_packet::at (u16 offset) const
+{
+  return &((*this)[offset]);
+}
+
+struct tap_packet : net_packet
+{
   mac dst;
   mac src;
   u8 data[MAXSIZE - 12];
 };
 
-struct tap_device {
+struct tap_device
+{
   int fd;
 
   // network interface name or identifier
@@ -110,6 +123,7 @@
 
   const char *interface () { return ifrname; }
   const char *info ();
+  const char *if_up ();
 
   tap_packet *recv ();
   void send (tap_packet *pkt);