ospfinp.c,v

来自「TCP-IP红宝书源代码」· C,V 代码 · 共 142 行

head	1.3;
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	dls:1.3; strict;
comment	@ * @;


1.3
date	94.02.13.19.38.53;	author dls;	state Works;
branches;
next	1.2;

1.2
date	94.02.06.18.21.13;	author dls;	state Ok;
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next	1.1;

1.1
date	94.01.18.20.50.51;	author dls;	state Old;
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next	;


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1.3
log
@*** empty log message ***
@
text
@/* ospf.c - ospf */

#include <conf.h>
#include <kernel.h>
#include <network.h>
#include <proc.h>
#include <ospf.h>

/*------------------------------------------------------------------------
 *  ospf -  start OSPF processes and become OSPF input process
 *------------------------------------------------------------------------
 */
PROCESS ospf()
{
	struct	ep	*pep;
	struct	ip	*pip;
	struct	ospf	*po;
	struct	ospf_if	*pif;

	if (!gateway)
		return;
	ospfinit();
	ospf_iport = pcreate(OSPFQLEN);
	if (ospf_iport == SYSERR)
		panic("ospf: cannot open ospf port");
	resume(create(ospfhello, OSPFHSTK, OSPFHPRI, OSPFHNAM, OSPFHARGC));

	while (TRUE) {
		pep = (struct ep *)preceive(ospf_iport);
		if (pep == (struct ep *)SYSERR)
			continue;
		pip = (struct ip *)pep->ep_data;
		po = (struct ospf *)((char *)pip + IP_HLEN(pip));
		ospfnet2h(po);
		if (ospfcheck(pep) != OK)
			continue;
		switch (po->ospf_type) {
		case T_HELLO:		ospf_hin(pep);
					break;
		case T_DATADESC:	ospf_ddin(pep);
					break;
		case T_LSREQ:		lsr_in(pep);
					break;
		case T_LSUPDATE:
		case T_LSACK:
		default:
			break;
		}
		pif = &ospf_if[pep->ep_ifn];
		if ((pif->if_state == IFS_WAITING &&
		    (pif->if_event&IFE_BSEEN)) ||
	    	    (pif->if_state >= IFS_DROTHER &&
		    (pif->if_event&IFE_NCHNG))) {
			if_elect(pep->ep_ifn);
			pif->if_event &= ~(IFE_BSEEN|IFE_NCHNG);
		}
		freebuf(pep);
	}
}

Bool	doospf = FALSE;
int	ospfpid = BADPID;
int	ospf_iport;
@


1.2
log
@*** empty log message ***
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text
@a26 4
#ifdef notdef
/* create based on area configuration here XXXX */
	resume(create(ospfout, OSPFSTK, OSPFPRI, OSPFONAM, OSPFOARGC));
#endif
a29 1
kprintf("ospfinp: got pep %X\n", pep);
a35 2
{
kprintf("ospfcheck returns FALSE\n");
a36 1
}
d42 2
a43 1
		case T_LSREQ:
@


1.1
log
@Initial revision
@
text
@d18 1
a18 1
	int		fd, len;
d22 1
d40 3
a42 1
		if (ospfcheck(po, len) != OK)
d44 1
d46 7
a52 2
		case T_HELLO:	ospf_hin(pep);
				break;
d56 8
@