[unix-history] / sys / kern / uipc_domain.c

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	from: @(#)uipc_domain.c	7.9 (Berkeley) 3/4/91
 *	$Id: uipc_domain.c,v 1.4 1993/11/25 01:33:31 wollman Exp $
 */

#include "param.h"
#include "systm.h"
#include "socket.h"
#include "protosw.h"
#include "domain.h"
#include "mbuf.h"
#include "time.h"
#include "kernel.h"

struct domain *domains;

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

static void pfslowtimo(caddr_t, int);
static void pffasttimo(caddr_t, int);

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

#undef unix
#ifndef lint
	ADDDOMAIN(unix);
	ADDDOMAIN(route);
#ifdef INET
	ADDDOMAIN(inet);
#endif
#ifdef NS
	ADDDOMAIN(ns);
#endif
#ifdef ISO
	ADDDOMAIN(iso);
#endif
#ifdef RMP
	ADDDOMAIN(rmp);
#endif
#ifdef CCITT
	ADDDOMAIN(ccitt);
#endif
#include "imp.h"
#if NIMP > 0
	ADDDOMAIN(imp);
#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)();
	}

if (max_linkhdr < 16)		/* XXX */
max_linkhdr = 16;
	max_hdr = max_linkhdr + max_protohdr;
	max_datalen = MHLEN - max_hdr;
	pffasttimo(0, 0);
	pfslowtimo(0, 0);
}

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) && (pr->pr_type == type))
			return (pr);

		if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
		    pr->pr_protocol == 0 && maybe == (struct protosw *)0)
			maybe = pr;
	}
	return (maybe);
}

void
pfctlinput(cmd, sa)
	int cmd;
	struct sockaddr *sa;
{
	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, sa, (caddr_t) 0);
}

static void
pfslowtimo(caddr_t dummy1, int dummy2)
{
	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);
}

static void
pffasttimo(caddr_t dummy1, int dummy2)
{
	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);
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1982, 1986 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
600f7f07	33	* from: @(#)uipc_domain.c 7.9 (Berkeley) 3/4/91
fde1aeb2	34	* $Id: uipc_domain.c,v 1.4 1993/11/25 01:33:31 wollman Exp $
15637ed4 RG	35	*/
15637ed4 RG	36
15637ed4	37	#include "param.h"
fde1aeb2	38	#include "systm.h"
15637ed4 RG	39	#include "socket.h"
	40	#include "protosw.h"
	41	#include "domain.h"
	42	#include "mbuf.h"
	43	#include "time.h"
	44	#include "kernel.h"
	45
bbc3f849 GW	46	struct domain *domains;
bbc3f849 GW	47
15637ed4 RG	48	#define ADDDOMAIN(x) { \
	49	extern struct domain __CONCAT(x,domain); \
	50	__CONCAT(x,domain.dom_next) = domains; \
	51	domains = &__CONCAT(x,domain); \
	52	}
	53
4c45483e GW	54	static void pfslowtimo(caddr_t, int);
	55	static void pffasttimo(caddr_t, int);
	56
	57	void
15637ed4 RG	58	domaininit()
	59	{
	60	register struct domain *dp;
	61	register struct protosw *pr;
	62
	63	#undef unix
	64	#ifndef lint
	65	ADDDOMAIN(unix);
	66	ADDDOMAIN(route);
	67	#ifdef INET
	68	ADDDOMAIN(inet);
	69	#endif
	70	#ifdef NS
	71	ADDDOMAIN(ns);
	72	#endif
	73	#ifdef ISO
	74	ADDDOMAIN(iso);
	75	#endif
	76	#ifdef RMP
	77	ADDDOMAIN(rmp);
	78	#endif
	79	#ifdef CCITT
	80	ADDDOMAIN(ccitt);
	81	#endif
	82	#include "imp.h"
	83	#if NIMP > 0
	84	ADDDOMAIN(imp);
	85	#endif
	86	#endif
	87
	88	for (dp = domains; dp; dp = dp->dom_next) {
	89	if (dp->dom_init)
	90	(*dp->dom_init)();
	91	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	92	if (pr->pr_init)
	93	(*pr->pr_init)();
	94	}
	95
	96	if (max_linkhdr < 16) /* XXX */
	97	max_linkhdr = 16;
	98	max_hdr = max_linkhdr + max_protohdr;
	99	max_datalen = MHLEN - max_hdr;
4c45483e GW	100	pffasttimo(0, 0);
4c45483e GW	101	pfslowtimo(0, 0);
15637ed4 RG	102	}
	103
	104	struct protosw *
	105	pffindtype(family, type)
	106	int family, type;
	107	{
	108	register struct domain *dp;
	109	register struct protosw *pr;
	110
	111	for (dp = domains; dp; dp = dp->dom_next)
	112	if (dp->dom_family == family)
	113	goto found;
	114	return (0);
	115	found:
	116	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	117	if (pr->pr_type && pr->pr_type == type)
	118	return (pr);
	119	return (0);
	120	}
	121
	122	struct protosw *
	123	pffindproto(family, protocol, type)
	124	int family, protocol, type;
	125	{
	126	register struct domain *dp;
	127	register struct protosw *pr;
	128	struct protosw *maybe = 0;
	129
	130	if (family == 0)
	131	return (0);
	132	for (dp = domains; dp; dp = dp->dom_next)
	133	if (dp->dom_family == family)
	134	goto found;
	135	return (0);
	136	found:
	137	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
	138	if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
	139	return (pr);
	140
	141	if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
	142	pr->pr_protocol == 0 && maybe == (struct protosw *)0)
	143	maybe = pr;
	144	}
	145	return (maybe);
	146	}
	147
4c45483e	148	void
15637ed4 RG	149	pfctlinput(cmd, sa)
	150	int cmd;
	151	struct sockaddr *sa;
	152	{
	153	register struct domain *dp;
	154	register struct protosw *pr;
	155
	156	for (dp = domains; dp; dp = dp->dom_next)
	157	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	158	if (pr->pr_ctlinput)
	159	(*pr->pr_ctlinput)(cmd, sa, (caddr_t) 0);
	160	}
	161
4c45483e GW	162	static void
4c45483e GW	163	pfslowtimo(caddr_t dummy1, int dummy2)
15637ed4 RG	164	{
	165	register struct domain *dp;
	166	register struct protosw *pr;
	167
	168	for (dp = domains; dp; dp = dp->dom_next)
	169	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	170	if (pr->pr_slowtimo)
	171	(*pr->pr_slowtimo)();
	172	timeout(pfslowtimo, (caddr_t)0, hz/2);
	173	}
	174
4c45483e GW	175	static void
4c45483e GW	176	pffasttimo(caddr_t dummy1, int dummy2)
15637ed4 RG	177	{
	178	register struct domain *dp;
	179	register struct protosw *pr;
	180
	181	for (dp = domains; dp; dp = dp->dom_next)
	182	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	183	if (pr->pr_fasttimo)
	184	(*pr->pr_fasttimo)();
	185	timeout(pffasttimo, (caddr_t)0, hz/5);
	186	}