include/linux/route.h

/* */
   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  *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  12  *
  13  *              This program is free software; you can redistribute it and/or
  14  *              modify it under the terms of the GNU General Public License
  15  *              as published by the Free Software Foundation; either version
  16  *              2 of the License, or (at your option) any later version.
  17  */
  18 #ifndef _LINUX_ROUTE_H
  19 #define _LINUX_ROUTE_H
  20 
  21 #include <linux/if.h>
  22 
  23 
  24 /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
  25 struct rtentry {
  26         unsigned long   rt_hash;        /* hash key for lookups         */
  27         struct sockaddr rt_dst;         /* target address               */
  28         struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
  29         struct sockaddr rt_genmask;     /* target network mask (IP)     */
  30         short           rt_flags;
  31         short           rt_refcnt;
  32         unsigned long   rt_use;
  33         struct ifnet    *rt_ifp;
  34         short           rt_metric;      /* +1 for binary compatibility! */
  35         char            *rt_dev;        /* forcing the device at add    */
  36         unsigned long   rt_mss;         /* per route MTU/Window         */
  37         unsigned long   rt_window;      /* Window clamping              */
  38         unsigned short  rt_irtt;        /* Initial RTT                  */
  39 };
  40 
  41 
  42 #define RTF_UP          0x0001          /* route usable                   */
  43 #define RTF_GATEWAY     0x0002          /* destination is a gateway       */
  44 #define RTF_HOST        0x0004          /* host entry (net otherwise)     */
  45 #define RTF_REINSTATE   0x0008          /* reinstate route after tmout    */
  46 #define RTF_DYNAMIC     0x0010          /* created dyn. (by redirect)     */
  47 #define RTF_MODIFIED    0x0020          /* modified dyn. (by redirect)    */
  48 #define RTF_MSS         0x0040          /* specific MSS for this route    */
  49 #define RTF_WINDOW      0x0080          /* per route window clamping      */
  50 #define RTF_IRTT        0x0100          /* Initial round trip time        */
  51 #define RTF_REJECT      0x0200          /* Reject route                   */
  52 
  53 /*
  54  *      REMOVE THESE BY 1.2.0 !!!!!!!!!!!!!!!!!
  55  */
  56  
  57 #define RTF_MTU         RTF_MSS
  58 #define rt_mtu          rt_mss          
  59 
  60 #endif  /* _LINUX_ROUTE_H */
/* */
root/include/linux/route.h

INCLUDED FROM
