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.
6 * Global definitions for the IP router interface.
8 * Version: @(#)route.h 1.0.3 05/27/93
10 * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
11 * for the purposes of compatibility only.
13 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
16 * Mike McLagan : Routing by source
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.
23 #ifndef _LINUX_ROUTE_H
24 #define _LINUX_ROUTE_H
27 #include <linux/compiler.h>
29 /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
32 unsigned long rt_pad1
;
33 struct sockaddr rt_dst
; /* target address */
34 struct sockaddr rt_gateway
; /* gateway addr (RTF_GATEWAY) */
35 struct sockaddr rt_genmask
; /* target network mask (IP) */
36 unsigned short rt_flags
;
38 unsigned long rt_pad3
;
40 short rt_metric
; /* +1 for binary compatibility! */
41 char __user
*rt_dev
; /* forcing the device at add */
42 unsigned long rt_mtu
; /* per route MTU/Window */
44 #define rt_mss rt_mtu /* Compatibility :-( */
46 unsigned long rt_window
; /* Window clamping */
47 unsigned short rt_irtt
; /* Initial RTT */
51 #define RTF_UP 0x0001 /* route usable */
52 #define RTF_GATEWAY 0x0002 /* destination is a gateway */
53 #define RTF_HOST 0x0004 /* host entry (net otherwise) */
54 #define RTF_REINSTATE 0x0008 /* reinstate route after tmout */
55 #define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */
56 #define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */
57 #define RTF_MTU 0x0040 /* specific MTU for this route */
58 #define RTF_MSS RTF_MTU /* Compatibility :-( */
59 #define RTF_WINDOW 0x0080 /* per route window clamping */
60 #define RTF_IRTT 0x0100 /* Initial round trip time */
61 #define RTF_REJECT 0x0200 /* Reject route */
64 * <linux/ipv6_route.h> uses RTF values >= 64k
69 #endif /* _LINUX_ROUTE_H */
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