1/* Copyright (C) 1997, 2002 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19/* Based on the 4.4BSD and Linux version of this file. */ 20 21#ifndef _NET_ROUTE_H 22#define _NET_ROUTE_H 1 23 24#include <features.h> 25#include <sys/socket.h> 26#include <sys/types.h> 27#include <netinet/in.h> 28#include <bits/wordsize.h> 29 30 31/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ 32struct rtentry 33 { 34 unsigned long int rt_pad1; 35 struct sockaddr rt_dst; /* Target address. */ 36 struct sockaddr rt_gateway; /* Gateway addr (RTF_GATEWAY). */ 37 struct sockaddr rt_genmask; /* Target network mask (IP). */ 38 unsigned short int rt_flags; 39 short int rt_pad2; 40 unsigned long int rt_pad3; 41 unsigned char rt_tos; 42 unsigned char rt_class; 43#if __WORDSIZE == 64 44 short int rt_pad4[3]; 45#else 46 short int rt_pad4; 47#endif 48 short int rt_metric; /* +1 for binary compatibility! */ 49 char *rt_dev; /* Forcing the device at add. */ 50 unsigned long int rt_mtu; /* Per route MTU/Window. */ 51 unsigned long int rt_window; /* Window clamping. */ 52 unsigned short int rt_irtt; /* Initial RTT. */ 53 }; 54/* Compatibility hack. */ 55#define rt_mss rt_mtu 56 57 58#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__ 59struct in6_rtmsg 60 { 61 struct in6_addr rtmsg_dst; 62 struct in6_addr rtmsg_src; 63 struct in6_addr rtmsg_gateway; 64 u_int32_t rtmsg_type; 65 u_int16_t rtmsg_dst_len; 66 u_int16_t rtmsg_src_len; 67 u_int32_t rtmsg_metric; 68 unsigned long int rtmsg_info; 69 u_int32_t rtmsg_flags; 70 int rtmsg_ifindex; 71 }; 72#endif 73 74 75#define RTF_UP 0x0001 /* Route usable. */ 76#define RTF_GATEWAY 0x0002 /* Destination is a gateway. */ 77 78#define RTF_HOST 0x0004 /* Host entry (net otherwise). */ 79#define RTF_REINSTATE 0x0008 /* Reinstate route after timeout. */ 80#define RTF_DYNAMIC 0x0010 /* Created dyn. (by redirect). */ 81#define RTF_MODIFIED 0x0020 /* Modified dyn. (by redirect). */ 82#define RTF_MTU 0x0040 /* Specific MTU for this route. */ 83#define RTF_MSS RTF_MTU /* Compatibility. */ 84#define RTF_WINDOW 0x0080 /* Per route window clamping. */ 85#define RTF_IRTT 0x0100 /* Initial round trip time. */ 86#define RTF_REJECT 0x0200 /* Reject route. */ 87#define RTF_STATIC 0x0400 /* Manually injected route. */ 88#define RTF_XRESOLVE 0x0800 /* External resolver. */ 89#define RTF_NOFORWARD 0x1000 /* Forwarding inhibited. */ 90#define RTF_THROW 0x2000 /* Go to next class. */ 91#define RTF_NOPMTUDISC 0x4000 /* Do not send packets with DF. */ 92 93/* for IPv6 */ 94#define RTF_DEFAULT 0x00010000 /* default - learned via ND */ 95#define RTF_ALLONLINK 0x00020000 /* fallback, no routers on link */ 96#define RTF_ADDRCONF 0x00040000 /* addrconf route - RA */ 97 98#define RTF_LINKRT 0x00100000 /* link specific - device match */ 99#define RTF_NONEXTHOP 0x00200000 /* route with no nexthop */ 100 101#define RTF_CACHE 0x01000000 /* cache entry */ 102#define RTF_FLOW 0x02000000 /* flow significant route */ 103#define RTF_POLICY 0x04000000 /* policy route */ 104 105#define RTCF_VALVE 0x00200000 106#define RTCF_MASQ 0x00400000 107#define RTCF_NAT 0x00800000 108#define RTCF_DOREDIRECT 0x01000000 109#define RTCF_LOG 0x02000000 110#define RTCF_DIRECTSRC 0x04000000 111 112#define RTF_LOCAL 0x80000000 113#define RTF_INTERFACE 0x40000000 114#define RTF_MULTICAST 0x20000000 115#define RTF_BROADCAST 0x10000000 116#define RTF_NAT 0x08000000 117 118#define RTF_ADDRCLASSMASK 0xF8000000 119#define RT_ADDRCLASS(flags) ((__u_int32_t) flags >> 23) 120 121#define RT_TOS(tos) ((tos) & IPTOS_TOS_MASK) 122 123#define RT_LOCALADDR(flags) ((flags & RTF_ADDRCLASSMASK) \ 124 == (RTF_LOCAL|RTF_INTERFACE)) 125 126#define RT_CLASS_UNSPEC 0 127#define RT_CLASS_DEFAULT 253 128 129#define RT_CLASS_MAIN 254 130#define RT_CLASS_LOCAL 255 131#define RT_CLASS_MAX 255 132 133 134#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__ 135#define RTMSG_ACK NLMSG_ACK 136#define RTMSG_OVERRUN NLMSG_OVERRUN 137 138#define RTMSG_NEWDEVICE 0x11 139#define RTMSG_DELDEVICE 0x12 140#define RTMSG_NEWROUTE 0x21 141#define RTMSG_DELROUTE 0x22 142#define RTMSG_NEWRULE 0x31 143#define RTMSG_DELRULE 0x32 144#define RTMSG_CONTROL 0x40 145 146#define RTMSG_AR_FAILED 0x51 /* Address Resolution failed. */ 147#endif 148 149#endif /* net/route.h */ 150