linux-imx

/*

 * 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.

 *

 *      Definitions for the IP router.

 *

 * Version: @(#)route.h 1.0.4   05/27/93

 *

 * Authors: Ross Biro

 *      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>

 * Fixes:

 *      Alan Cox    :   Reformatted. Added ip_rt_local()

 *      Alan Cox    :   Support for TCP parameters.

 *      Alexey Kuznetsov:   Major changes for new routing code.

 *      Mike McLagan    :   Routing by source

 *      Robert Olsson   :   Added rt_cache statistics

 *

 *      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 _ROUTE_H

#define _ROUTE_H

​

#include <net/dst.h>

#include <net/inetpeer.h>

#include <net/flow.h>

#include <net/inet_sock.h>

#include <net/ip_fib.h>

#include <linux/in_route.h>

#include <linux/rtnetlink.h>

#include <linux/rcupdate.h>

#include <linux/route.h>

#include <linux/ip.h>

#include <linux/cache.h>

#include <linux/security.h>

​

/* IPv4 datagram length is stored into 16bit field (tot_len) */

#define IP_MAX_MTU  0xFFFFU

​

#define RTO_ONLINK  0x01

​

#define RT_CONN_FLAGS(sk)   (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))

#define RT_CONN_FLAGS_TOS(sk,tos)   (RT_TOS(tos) | sock_flag(sk, SOCK_LOCALROUTE))

​

struct fib_nh;

struct fib_info;

struct uncached_list;

struct rtable {

    struct dst_entry    dst;

​

    int         rt_genid;

    unsigned int        rt_flags;

    __u16           rt_type;

    __u8            rt_is_input;

    __u8            rt_uses_gateway;

​

    int         rt_iif;

​

    /* Info on neighbour */

    __be32          rt_gateway;