1/*
2 * INET		An implementation of the TCP/IP protocol suite for the LINUX
3 *		operating system.  INET is implemented using the  BSD Socket
4 *		interface as the means of communication with the user level.
5 *
6 *		Global definitions for the IP router interface.
7 *
8 * Version:	@(#)route.h	1.0.3	05/27/93
9 *
10 * Authors:	Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
11 *		for the purposes of compatibility only.
12 *
13 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
14 *
15 * Changes:
16 *              Mike McLagan    :       Routing by source
17 *
18 *		This program is free software; you can redistribute it and/or
19 *		modify it under the terms of the GNU General Public License
20 *		as published by the Free Software Foundation; either version
21 *		2 of the License, or (at your option) any later version.
22 */
23#ifndef _LINUX_ROUTE_H
24#define _LINUX_ROUTE_H
25
26#include <linux/if.h>
27#include <linux/compiler.h>
28
29/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
30struct rtentry {
31	unsigned long	rt_pad1;
32	struct sockaddr	rt_dst;		/* target address		*/
33	struct sockaddr	rt_gateway;	/* gateway addr (RTF_GATEWAY)	*/
34	struct sockaddr	rt_genmask;	/* target network mask (IP)	*/
35	unsigned short	rt_flags;
36	short		rt_pad2;
37	unsigned long	rt_pad3;
38	void		*rt_pad4;
39	short		rt_metric;	/* +1 for binary compatibility!	*/
40	char __user	*rt_dev;	/* forcing the device at add	*/
41	unsigned long	rt_mtu;		/* per route MTU/Window 	*/
42#ifndef __KERNEL__
43#define rt_mss	rt_mtu			/* Compatibility :-(            */
44#endif
45	unsigned long	rt_window;	/* Window clamping 		*/
46	unsigned short	rt_irtt;	/* Initial RTT			*/
47};
48
49
50#define	RTF_UP		0x0001		/* route usable		  	*/
51#define	RTF_GATEWAY	0x0002		/* destination is a gateway	*/
52#define	RTF_HOST	0x0004		/* host entry (net otherwise)	*/
53#define RTF_REINSTATE	0x0008		/* reinstate route after tmout	*/
54#define	RTF_DYNAMIC	0x0010		/* created dyn. (by redirect)	*/
55#define	RTF_MODIFIED	0x0020		/* modified dyn. (by redirect)	*/
56#define RTF_MTU		0x0040		/* specific MTU for this route	*/
57#define RTF_MSS		RTF_MTU		/* Compatibility :-(		*/
58#define RTF_WINDOW	0x0080		/* per route window clamping	*/
59#define RTF_IRTT	0x0100		/* Initial round trip time	*/
60#define RTF_REJECT	0x0200		/* Reject route			*/
61
62/*
63 *	<linux/ipv6_route.h> uses RTF values >= 64k
64 */
65
66
67
68#endif	/* _LINUX_ROUTE_H */
69
70