if.h revision 20bc99aa3ad84a338b7a9c1edc14682bce25d761
/* $Id$ */
/** @file
* NAT - if_*.
*/
/*
* Copyright (C) 2006-2010 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*
* This code is based on:
*
* Copyright (c) 1995 Danny Gasparovski.
*
* Please read the file COPYRIGHT for the
* terms and conditions of the copyright.
*/
#ifndef _IF_H_
#define _IF_H_
#define IF_COMPRESS 0x01 /* We want compression */
#define IF_NOCOMPRESS 0x02 /* Do not do compression */
#define IF_AUTOCOMP 0x04 /* Autodetect (default) */
#define IF_NOCIDCOMP 0x08 /* CID compression */
/* Needed for FreeBSD */
#undef if_mtu
extern int if_mtu;
extern int if_mru; /* MTU and MRU */
extern int if_comp; /* Flags for compression */
extern int if_maxlinkhdr;
extern int if_queued; /* Number of packets queued so far */
extern int if_thresh; /* Number of packets queued before we start sending
* (to prevent allocing too many mbufs) */
extern struct mbuf if_fastq; /* fast queue (for interactive data) */
extern struct mbuf if_batchq; /* queue for non-interactive data */
extern struct mbuf *next_m;
#define ifs_init(ifm) ((ifm)->ifs_next = (ifm)->ifs_prev = (ifm))
#ifdef ETH_P_ARP
# undef ETH_P_ARP
#endif /* ETH_P_ARP*/
#define ETH_P_ARP 0x0806 /* Address Resolution packet */
#ifdef ETH_P_IP
# undef ETH_P_IP
#endif /* ETH_P_IP */
#define ETH_P_IP 0x0800 /* Internet Protocol packet */
#ifdef ETH_P_IPV6
# undef ETH_P_IPV6
#endif /* ETH_P_IPV6 */
#define ETH_P_IPV6 0x86DD /* IPv6 */
#endif