1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * INET An implementation of the TCP/IP protocol suite for the LINUX 4*4882a593Smuzhiyun * operating system. INET is implemented using the BSD Socket 5*4882a593Smuzhiyun * interface as the means of communication with the user level. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Global definitions for the IP router interface. 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Version: @(#)route.h 1.0.3 05/27/93 10*4882a593Smuzhiyun * 11*4882a593Smuzhiyun * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 12*4882a593Smuzhiyun * for the purposes of compatibility only. 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 15*4882a593Smuzhiyun * 16*4882a593Smuzhiyun * Changes: 17*4882a593Smuzhiyun * Mike McLagan : Routing by source 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or 20*4882a593Smuzhiyun * modify it under the terms of the GNU General Public License 21*4882a593Smuzhiyun * as published by the Free Software Foundation; either version 22*4882a593Smuzhiyun * 2 of the License, or (at your option) any later version. 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun #ifndef _LINUX_ROUTE_H 25*4882a593Smuzhiyun #define _LINUX_ROUTE_H 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #include <linux/if.h> 28*4882a593Smuzhiyun #include <linux/compiler.h> 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ 31*4882a593Smuzhiyun struct rtentry { 32*4882a593Smuzhiyun unsigned long rt_pad1; 33*4882a593Smuzhiyun struct sockaddr rt_dst; /* target address */ 34*4882a593Smuzhiyun struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ 35*4882a593Smuzhiyun struct sockaddr rt_genmask; /* target network mask (IP) */ 36*4882a593Smuzhiyun unsigned short rt_flags; 37*4882a593Smuzhiyun short rt_pad2; 38*4882a593Smuzhiyun unsigned long rt_pad3; 39*4882a593Smuzhiyun void *rt_pad4; 40*4882a593Smuzhiyun short rt_metric; /* +1 for binary compatibility! */ 41*4882a593Smuzhiyun char __user *rt_dev; /* forcing the device at add */ 42*4882a593Smuzhiyun unsigned long rt_mtu; /* per route MTU/Window */ 43*4882a593Smuzhiyun #ifndef __KERNEL__ 44*4882a593Smuzhiyun #define rt_mss rt_mtu /* Compatibility :-( */ 45*4882a593Smuzhiyun #endif 46*4882a593Smuzhiyun unsigned long rt_window; /* Window clamping */ 47*4882a593Smuzhiyun unsigned short rt_irtt; /* Initial RTT */ 48*4882a593Smuzhiyun }; 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #define RTF_UP 0x0001 /* route usable */ 52*4882a593Smuzhiyun #define RTF_GATEWAY 0x0002 /* destination is a gateway */ 53*4882a593Smuzhiyun #define RTF_HOST 0x0004 /* host entry (net otherwise) */ 54*4882a593Smuzhiyun #define RTF_REINSTATE 0x0008 /* reinstate route after tmout */ 55*4882a593Smuzhiyun #define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */ 56*4882a593Smuzhiyun #define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */ 57*4882a593Smuzhiyun #define RTF_MTU 0x0040 /* specific MTU for this route */ 58*4882a593Smuzhiyun #define RTF_MSS RTF_MTU /* Compatibility :-( */ 59*4882a593Smuzhiyun #define RTF_WINDOW 0x0080 /* per route window clamping */ 60*4882a593Smuzhiyun #define RTF_IRTT 0x0100 /* Initial round trip time */ 61*4882a593Smuzhiyun #define RTF_REJECT 0x0200 /* Reject route */ 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* 64*4882a593Smuzhiyun * <linux/ipv6_route.h> uses RTF values >= 64k 65*4882a593Smuzhiyun */ 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun #endif /* _LINUX_ROUTE_H */ 70*4882a593Smuzhiyun 71