root/net/inet/route.h

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INCLUDED FROM


   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 char           rt_flags;
  36         unsigned char           rt_metric;
  37         short                   rt_refcnt;
  38         unsigned long           rt_use;
  39         unsigned short          rt_mss, rt_mtu;
  40         struct device           *rt_dev;
  41 };
  42 
  43 
  44 extern void             ip_rt_flush(struct device *dev);
  45 extern void             ip_rt_add(short flags, unsigned long addr, unsigned long mask,
  46                                unsigned long gw, struct device *dev, unsigned short);
  47 extern struct rtable    *ip_rt_route(unsigned long daddr, struct options *opt, unsigned long *src_addr);
  48 extern struct rtable    *ip_rt_local(unsigned long daddr, struct options *opt, unsigned long *src_addr);
  49 extern int              rt_get_info(char * buffer, char **start, off_t offset, int length);
  50 extern int              ip_rt_ioctl(unsigned int cmd, void *arg);
  51 
  52 #endif  /* _ROUTE_H */

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