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/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Global definitions for the IP router interface.
*
* Version: @(#)route.h 1.0.3 05/27/93
*
* Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
* for the purposes of compatibility only.
*
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _LINUX_ROUTE_H
#define _LINUX_ROUTE_H
#include <linux/if.h>
/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
struct rtentry
{
unsigned long rt_pad1;
struct sockaddr rt_dst; /* target address */
struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
struct sockaddr rt_genmask; /* target network mask (IP) */
unsigned short rt_flags;
short rt_pad2;
unsigned long rt_pad3;
unsigned char rt_tos;
unsigned char rt_class;
short rt_pad4;
short rt_metric; /* +1 for binary compatibility! */
char *rt_dev; /* forcing the device at add */
unsigned long rt_mtu; /* per route MTU/Window */
#ifndef __KERNEL__
#define rt_mss rt_mtu /* Compatibility :-( */
#endif
unsigned long rt_window; /* Window clamping */
unsigned short rt_irtt; /* Initial RTT */
};
#define RTF_UP 0x0001 /* route usable */
#define RTF_GATEWAY 0x0002 /* destination is a gateway */
#define RTF_HOST 0x0004 /* host entry (net otherwise) */
#define RTF_REINSTATE 0x0008 /* reinstate route after tmout */
#define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */
#define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */
#define RTF_MTU 0x0040 /* specific MTU for this route */
#define RTF_MSS RTF_MTU /* Compatibility :-( */
#define RTF_WINDOW 0x0080 /* per route window clamping */
#define RTF_IRTT 0x0100 /* Initial round trip time */
#define RTF_REJECT 0x0200 /* Reject route */
#define RTF_STATIC 0x0400 /* Manually injected route */
#define RTF_XRESOLVE 0x0800 /* External resolver */
#define RTF_NOFORWARD 0x1000 /* Forwarding inhibited */
#define RTF_THROW 0x2000 /* Go to next class */
#define RTF_NOPMTUDISC 0x4000 /* Do not send packets with DF */
#define RTF_MAGIC 0x8000 /* Route added/deleted authomatically,
* when interface changes its state.
*/
/*
* <linux/ipv6_route.h> uses RTF values >= 64k
*/
#define RTCF_VALVE 0x00200000
#define RTCF_MASQ 0x00400000
#define RTCF_NAT 0x00800000
#define RTCF_DOREDIRECT 0x01000000
#define RTCF_LOG 0x02000000
#define RTCF_DIRECTSRC 0x04000000
#define RTF_LOCAL 0x80000000
#define RTF_INTERFACE 0x40000000
#define RTF_MULTICAST 0x20000000
#define RTF_BROADCAST 0x10000000
#define RTF_NAT 0x08000000
#define RTF_ADDRCLASSMASK 0xF8000000
#define RT_ADDRCLASS(flags) ((__u32)flags>>23)
#define RT_TOS(tos) ((tos)&IPTOS_TOS_MASK)
#define RT_LOCALADDR(flags) ((flags&RTF_ADDRCLASSMASK) == (RTF_LOCAL|RTF_INTERFACE))
#define RT_CLASS_UNSPEC 0
#define RT_CLASS_DEFAULT 253
#define RT_CLASS_MAIN 254
#define RT_CLASS_LOCAL 255
#define RT_CLASS_MAX 255
#ifdef _LINUX_IN_H /* hack to check that in.h included */
/*
* This structure is passed from the kernel to user space by netlink
* routing/device announcements
*/
struct in_rtmsg
{
struct in_addr rtmsg_prefix;
struct in_addr rtmsg_gateway;
unsigned rtmsg_flags;
unsigned long rtmsg_mtu;
unsigned long rtmsg_window;
unsigned short rtmsg_rtt;
short rtmsg_metric;
unsigned char rtmsg_tos;
unsigned char rtmsg_class;
unsigned char rtmsg_prefixlen;
unsigned char rtmsg_reserved;
int rtmsg_ifindex;
};
struct in_ifmsg
{
struct sockaddr ifmsg_lladdr;
struct in_addr ifmsg_prefix;
struct in_addr ifmsg_brd;
unsigned ifmsg_flags;
unsigned long ifmsg_mtu;
short ifmsg_metric;
unsigned char ifmsg_prefixlen;
unsigned char ifmsg_reserved;
int ifmsg_index;
char ifmsg_name[16];
};
enum rtrule_actions
{
RTP_GO,
RTP_NAT,
RTP_DROP,
RTP_UNREACHABLE,
RTP_PROHIBIT,
RTP_MASQUERADE
};
#define RTRF_LOG 1 /* Log route creations */
#define RTRF_VALVE 2 /* One-way route */
struct in_rtrulemsg
{
struct in_addr rtrmsg_src;
struct in_addr rtrmsg_dst;
struct in_addr rtrmsg_srcmap;
int rtrmsg_ifindex;
unsigned char rtrmsg_srclen;
unsigned char rtrmsg_dstlen;
unsigned char rtrmsg_tos;
unsigned char rtrmsg_class;
unsigned char rtrmsg_flags;
unsigned char rtrmsg_action;
unsigned char rtrmsg_preference;
unsigned char rtrmsg_rtmsgs;
struct in_rtmsg rtrmsg_rtmsg[1];
};
struct in_rtctlmsg
{
unsigned rtcmsg_flags;
int rtcmsg_delay;
};
#define RTCTL_ECHO 1 /* Echo route changes */
#define RTCTL_FLUSH 2 /* Send flush updates */
#define RTCTL_ACK 4 /* Send acks */
#define RTCTL_DELAY 8 /* Set netlink delay */
#define RTCTL_OWNER 0x10 /* Set netlink reader */
#endif
#define RTMSG_ACK NLMSG_ACK
#define RTMSG_OVERRUN NLMSG_OVERRUN
#define RTMSG_NEWDEVICE 0x11
#define RTMSG_DELDEVICE 0x12
#define RTMSG_NEWROUTE 0x21
#define RTMSG_DELROUTE 0x22
#define RTMSG_NEWRULE 0x31
#define RTMSG_DELRULE 0x32
#define RTMSG_CONTROL 0x40
#define RTMSG_AR_FAILED 0x51 /* Address Resolution failed */
#endif /* _LINUX_ROUTE_H */
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