1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
2 | /* |
3 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
4 | * operating system. INET is implemented using the BSD Socket |
5 | * interface as the means of communication with the user level. |
6 | * |
7 | * Global definitions for the IP router interface. |
8 | * |
9 | * Version: @(#)route.h 1.0.3 05/27/93 |
10 | * |
11 | * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 |
12 | * for the purposes of compatibility only. |
13 | * |
14 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
15 | * |
16 | * Changes: |
17 | * Mike McLagan : Routing by source |
18 | * |
19 | * This program is free software; you can redistribute it and/or |
20 | * modify it under the terms of the GNU General Public License |
21 | * as published by the Free Software Foundation; either version |
22 | * 2 of the License, or (at your option) any later version. |
23 | */ |
24 | #ifndef _LINUX_ROUTE_H |
25 | #define _LINUX_ROUTE_H |
26 | |
27 | #include <linux/if.h> |
28 | #include <linux/compiler.h> |
29 | |
30 | /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ |
31 | struct rtentry { |
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; |
37 | short rt_pad2; |
38 | unsigned long rt_pad3; |
39 | void *rt_pad4; |
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 */ |
43 | #ifndef __KERNEL__ |
44 | #define rt_mss rt_mtu /* Compatibility :-( */ |
45 | #endif |
46 | unsigned long rt_window; /* Window clamping */ |
47 | unsigned short rt_irtt; /* Initial RTT */ |
48 | }; |
49 | |
50 | |
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 */ |
62 | |
63 | /* |
64 | * <linux/ipv6_route.h> uses RTF values >= 64k |
65 | */ |
66 | |
67 | |
68 | |
69 | #endif /* _LINUX_ROUTE_H */ |
70 | |
71 | |