router.h

一个学习SNMP项目：tmoerlan.

/* snap-1.0. Copyright (C) 2000 by Jonathan T. Moore and Michael Hicks.
 *
 * router.h : interface to the routing table used by SNAP
 *
 * $Id: router.h,v 1.2 2003/09/17 11:26:10 tmoerlan Exp $
 */

#ifndef _ROUTER_H_
#define _ROUTER_H_

#include <asm/types.h>
#include "bytecode.h"

#define PROC_NET_ROUTE_PATH "/proc/net/route"
#define PROC_NET_DEV_PATH "/compat/linux/proc/net/dev"

typedef __u32 addr_t;

struct rt_lookup {
  addr_t hopaddr;
  unsigned int ifidx;
};

extern void read_routes(char *iface_file);
extern void read_ifaces(char *route_file);
extern int nexthop(addr_t dst, struct rt_lookup *retval);

#endif /* !_ROUTER_H_ */