Line data Source code
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. */
30 : struct 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 3 :
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 :
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