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 * Definitions for the IP router.
7 *
8 * Version: @(#)route.h 1.0.4 05/27/93
9 *
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * Fixes:
13 * Alan Cox : Reformatted. Added ip_rt_local()
14 * Alan Cox : Support for TCP parameters.
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version
19 * 2 of the License, or (at your option) any later version.
20 */
21 #ifndef _ROUTE_H
22 #define _ROUTE_H
23
24
25 #include <linux/route.h>
26
27
28 /* This is an entry in the IP routing table. */
29 struct rtable
30 {
31 struct rtable *rt_next;
32 unsigned long rt_dst;
33 unsigned long rt_mask;
34 unsigned long rt_gateway;
35 unsigned short rt_flags;
36 unsigned short rt_metric;
37 unsigned int rt_refcnt;
38 unsigned long rt_use;
39 unsigned short rt_mss;
40 unsigned short rt_irtt;
41 unsigned long rt_window;
42 struct device *rt_dev;
43 };
44
45
46 extern void ip_rt_flush(struct device *dev);
47 extern void ip_rt_add(short flags, unsigned long addr, unsigned long mask,
48 unsigned long gw, struct device *dev, unsigned short mss, unsigned long window, unsigned short irtt, unsigned char metric);
49 extern struct rtable *ip_rt_route(unsigned long daddr, struct options *opt, unsigned long *src_addr);
50 extern struct rtable *ip_rt_local(unsigned long daddr, struct options *opt, unsigned long *src_addr);
51 extern int rt_get_info(char * buffer, char **start, off_t offset, int length);
52 extern int ip_rt_ioctl(unsigned int cmd, void *arg);
53
54 extern unsigned long rt_stamp;
55
56 #endif /* _ROUTE_H */