rrfwd.h

用于嵌入式系统的TCP/IP协议栈及若干服务

/*
*            Copyright (c) 1998-2001 by NETsilicon Inc.
*
*  This software is copyrighted by and is the sole property of
*  NETsilicon.  All rights, title, ownership, or other interests
*  in the software remain the property of NETsilicon.  This
*  software may only be used in accordance with the corresponding
*  license agreement.  Any unauthorized use, duplication, transmission,
*  distribution, or disclosure of this software is expressly forbidden.
*
*  This Copyright notice may not be removed or modified without prior
*  written consent of NETsilicon.
*
*  NETsilicon, reserves the right to modify this software
*  without notice.
*
*  NETsilicon
*  411 Waverley Oaks Road                  USA 781.647.1234
*  Suite 227                               http://www.netsilicon.com
*  Waltham, MA 02452                       [e-mail]
*
*************************************************************************
*  $Name: Fusion 6.52 Fusion 6.51 $
*  $Date: 2001/09/20 10:32:08 $
*  $Source: M:/psisrc/routing/incl/rcs/rrfwd.h $
*  $Revision: 1.5 $
*************************************************************************
*  File Description: forwarding entry definition 
*************************************************************************/

#ifndef _fwd_h
#define _fwd_h

/* a forwarding destination */
typedef struct fwdent{
	struct sn_addr	fe_addr;		/* next hop addr */
	int 			fe_cid;		/* output circ id */
#ifdef PDU_CNVT
	word			fe_cnvt;		/* conversion flags */
#endif /* PDU_CNVT */
}fent, *fent_pt;

/* means no route */
#define INVALID_CIRC	-1

/* this is a way to locate an adjacency from a fent */
#define FE_ADJ(fe)	(adj_pt)((byte *)fe - ( (byte *)&((adj_pt)fe)->adj_fe - (byte *)fe ))

/* conversion/encapsulation function flags */
#define CVT_P4		0x0001	/* convert to decnet phase4 */


/* this is a way to locate an atalk arp ent from a fent */
#define FE_ARP(fe)	(aarpent_pt)((byte *)fe - ( (byte *)&((aarpent_pt)fe)->ae_fent - (byte *)fe ))

#endif /* _fwd_h */