Ultrix-3.1/sys/sys/uipc_domain.c

/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/

/*
 * Copyright (c) 1982 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 * SCCSID: @(#)uipc_domain.c	3.0	4/21/86
 *	Based on: @(#)uipc_domain.c	6.6 (Berkeley) 6/8/85
 */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#ifdef	vax
#include "time.h"
#include "kernel.h"
#else	pdp11
extern int hz;

#define	ADDDOMAIN(x)	{ \
	extern struct domain x/**/domain; \
	x/**/domain.dom_next = domains; \
	domains = &x/**/domain; \
}

domaininit()
{
	register struct domain *dp;
	register struct protosw *pr;

#ifndef lint
#ifdef	UNIX_DOMAIN
	ADDDOMAIN(unix);
#endif
#ifdef INET
	ADDDOMAIN(inet);
#endif
#ifdef NS
	ADDDOMAIN(ns);
#endif
#ifdef PUP
	ADDDOMAIN(pup);
#endif
#if NIMP > 0
	ADDDOMAIN(imp);
#endif
#ifdef DECNET
	ADDDOMAIN(decnet);
#endif
#ifdef LAT
	ADDDOMAIN(lat);
#endif
#ifdef DLI
	ADDDOMAIN(dli);
#endif
#endif

	for (dp = domains; dp; dp = dp->dom_next) {
		if (dp->dom_init)
			(*dp->dom_init)();
		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
			if (pr->pr_init)
				(*pr->pr_init)();
	}
	pffasttimo();
	pfslowtimo();
}

struct protosw *
pffindtype(family, type)
	int family, type;
{
	register struct domain *dp;
	register struct protosw *pr;

	for (dp = domains; dp; dp = dp->dom_next)
		if (dp->dom_family == family)
			goto found;
	return (0);
found:
	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
		if (pr->pr_type && pr->pr_type == type)
			return (pr);
	return (0);
}

struct protosw *
pffindproto(family, protocol, type)
	int family, protocol, type;
{
	register struct domain *dp;
	register struct protosw *pr;
	struct protosw *maybe = 0;

	if (family == 0)
		return (0);
	for (dp = domains; dp; dp = dp->dom_next)
		if (dp->dom_family == family)
			goto found;
	return (0);
found:
	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
		if (pr->pr_protocol == protocol)
			return (pr);
		if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
		    pr->pr_protocol == 0 && maybe == (struct protosw *)0)
			maybe = pr;
	}
	return (maybe);
}

pfctlinput(cmd, arg)
	int cmd;
	caddr_t arg;
{
	register struct domain *dp;
	register struct protosw *pr;

	for (dp = domains; dp; dp = dp->dom_next)
		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
			if (pr->pr_ctlinput)
				(*pr->pr_ctlinput)(cmd, arg);
}

pfslowtimo()
{
	register struct domain *dp;
	register struct protosw *pr;

	for (dp = domains; dp; dp = dp->dom_next)
		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
			if (pr->pr_slowtimo)
				(*pr->pr_slowtimo)();
	timeout(pfslowtimo, (caddr_t)0, hz/2);
}

pffasttimo()
{
	register struct domain *dp;
	register struct protosw *pr;

	for (dp = domains; dp; dp = dp->dom_next)
		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
			if (pr->pr_fasttimo)
				(*pr->pr_fasttimo)();
	timeout(pffasttimo, (caddr_t)0, hz/5);
}