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 SIOCADDRTOLD and SIOCDELRTOLD calls. */ 25 struct old_rtentry { 26 unsigned long rt_genmask; 27 struct sockaddr rt_dst; 28 struct sockaddr rt_gateway; 29 short rt_flags; 30 short rt_refcnt; 31 unsigned long rt_use; 32 char *rt_dev; 33 }; 34 35 /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ 36 struct rtentry { 37 unsigned long rt_hash; /* hash key for lookups */ 38 struct sockaddr rt_dst; /* target address */ 39 struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ 40 struct sockaddr rt_genmask; /* target network mask (IP) */ 41 short rt_flags; 42 short rt_refcnt; 43 unsigned long rt_use; 44 struct ifnet *rt_ifp; 45 short rt_metric; /* +1 for binary compatibility! */ 46 char *rt_dev; /* forcing the device at add */ 47 }; 48 49 50 #define RTF_UP 0x0001 /* route useable */ 51 #define RTF_GATEWAY 0x0002 /* destination is a gateway */ 52 #define RTF_HOST 0x0004 /* host entry (net otherwise) */ 53 #define RTF_REINSTATE 0x0008 /* re-instate route after tmout */ 54 #define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */ 55 #define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */ 56 57 #endif /* _LINUX_ROUTE_H */