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/* Copyright (C) 1997, 2002 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/* Based on the 4.4BSD and Linux version of this file.  */

#ifndef _NET_ROUTE_H

#define _NET_ROUTE_H    1

#include <features.h>

#include <sys/socket.h>

#include <sys/types.h>

#include <netinet/in.h>

#include <bits/wordsize.h>

/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */

struct rtentry

  {

    unsigned long int 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 int rt_flags;

    short int rt_pad2;

    unsigned long int rt_pad3;

    unsigned char rt_tos;

    unsigned char rt_class;

#if __WORDSIZE == 64

    short int rt_pad4[3];

#else

    short int rt_pad4;

#endif

    short int rt_metric;                /* +1 for binary compatibility!  */

    char *rt_dev;                       /* Forcing the device at add.  */

    unsigned long int rt_mtu;           /* Per route MTU/Window.  */

    unsigned long int rt_window;        /* Window clamping.  */

    unsigned short int rt_irtt;         /* Initial RTT.  */

  };

/* Compatibility hack.  */

#define rt_mss  rt_mtu

struct in6_rtmsg

  {

    struct in6_addr rtmsg_dst;

    struct in6_addr rtmsg_src;

    struct in6_addr rtmsg_gateway;

    u_int32_t rtmsg_type;

    u_int16_t rtmsg_dst_len;

    u_int16_t rtmsg_src_len;

    u_int32_t rtmsg_metric;

    unsigned long int rtmsg_info;

    u_int32_t rtmsg_flags;

    int rtmsg_ifindex;

  };

#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 timeout.  */

#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.  */

/* for IPv6 */

#define RTF_DEFAULT     0x00010000      /* default - learned via ND     */

#define RTF_ALLONLINK   0x00020000      /* fallback, no routers on link */

#define RTF_ADDRCONF    0x00040000      /* addrconf route - RA          */

#define RTF_LINKRT      0x00100000      /* link specific - device match */

#define RTF_NONEXTHOP   0x00200000      /* route with no nexthop        */

#define RTF_CACHE       0x01000000      /* cache entry                  */

#define RTF_FLOW        0x02000000      /* flow significant route       */

#define RTF_POLICY      0x04000000      /* policy route                 */

#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)     ((__u_int32_t) 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

#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 /* net/route.h */