mospf.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 10:32:05 $
*  $Source: M:/psisrc/routing/incl/rcs/mospf.h $
*  $Revision: 1.6 $
*************************************************************************
*  File Description:  OSPF - spf decision process definition 
*************************************************************************/


/* incoming links types used by mospf */
#define MSPF_ILT_VIRT	5
#define MSPF_ILT_DIR	4
#define MSPF_ILT_NORM	3
#define MSPF_ILT_SUM	2
#define MSPF_ILT_EXT	1
#define MSPF_ILT_NONE	0

/* type of mospf candidate initialization per section 12.2 */
#define MSPF_ITY_INTRA   5
#define MSPF_ITY_INTER1  4
#define MSPF_ITY_INTER2  3
#define MSPF_ITY_EXT     2
#define MSPF_ITY_STUBEXT 1

/* group lsa vertex types */
#define MSPF_VTYPE_RTR   1
#define MSPF_VTYPE_TRANS 2

/* a cache entry built by mospf */
/* we really want to keep this independent of
   announce-ip so we max out number of interfaces.
   Note that ther is only one of this structure
   which is used when computing a route. IP is
   actually responsible for maintaining the
   cache database.
*/
#define MOSPF_MAX_NBR 256
typedef struct mospf_cache_entry{
	rripa			ce_grp;
	rripa			ce_src;
	IPNA			ce_srcnet;
	int			ce_is_ospf;		/* route is ospf */
	lsai_pt		ce_lsai;			/* route lsai */
	rripa			ce_aid;			/* route area */
	area_pt		ce_rootarea;
	int			ce_rootinit;
	int			ce_cost;
	void 		*ce_upif;
	/* downstream interfaces */
	int			ce_dncount;
	void			*ce_dnnode[MOSPF_MAX_NBR];
	byte			ce_dnttl[MOSPF_MAX_NBR];
}MCACHE_ENT,*mospf_cache_pt;		

fnc_prot(void, mospfCircChange,(os_circ_pt))
fnc_prot(void, mospfClearCache,(rripa,ipna_pt))
fnc_prot(void, mospfAddCache,(mospf_cache_pt))
fnc_prot(rripa, mospfGroup,(rripa, void *,int))
fnc_prot(int, mospfCircEnabled,(void *))
fnc_prot(void, mospfBuildMyGroups,(area_pt, rripa ))
fnc_prot(void, mospfSetVertex,(pathent_pt, pathent_pt,int))
fnc_prot(int, mospfDoReplace,(pathent_pt, pathent_pt,int))
fnc_prot(void, mospfRunSpf,(rripa,rripa,mospf_cache_pt))