source: svn/trunk/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/net/route.h

/* 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 */