[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
 *	$Id$
 */

#include <sys/cdefs.h>
#include "param.h"
#include "socket.h"
#include "protosw.h"
#include "domain.h"
#include "mbuf.h"
#include "time.h"
#include "kernel.h"

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

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();
	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) && (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);
}

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);
}

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);
}
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 RG	33	* from: @(#)uipc_domain.c 7.9 (Berkeley) 3/4/91
600f7f07 RG	34	* $Id$
15637ed4 RG	35	*/
	36
	37	#include <sys/cdefs.h>
	38	#include "param.h"
	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
	46	#define ADDDOMAIN(x) { \
	47	extern struct domain __CONCAT(x,domain); \
	48	__CONCAT(x,domain.dom_next) = domains; \
	49	domains = &__CONCAT(x,domain); \
	50	}
	51
	52	domaininit()
	53	{
	54	register struct domain *dp;
	55	register struct protosw *pr;
	56
	57	#undef unix
	58	#ifndef lint
	59	ADDDOMAIN(unix);
	60	ADDDOMAIN(route);
	61	#ifdef INET
	62	ADDDOMAIN(inet);
	63	#endif
	64	#ifdef NS
	65	ADDDOMAIN(ns);
	66	#endif
	67	#ifdef ISO
	68	ADDDOMAIN(iso);
	69	#endif
	70	#ifdef RMP
	71	ADDDOMAIN(rmp);
	72	#endif
	73	#ifdef CCITT
	74	ADDDOMAIN(ccitt);
	75	#endif
	76	#include "imp.h"
	77	#if NIMP > 0
	78	ADDDOMAIN(imp);
	79	#endif
	80	#endif
	81
	82	for (dp = domains; dp; dp = dp->dom_next) {
	83	if (dp->dom_init)
	84	(*dp->dom_init)();
	85	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
	86	if (pr->pr_init)
	87	(*pr->pr_init)();
	88	}
	89
	90	if (max_linkhdr < 16) /* XXX */
	91	max_linkhdr = 16;
	92	max_hdr = max_linkhdr + max_protohdr;
	93	max_datalen = MHLEN - max_hdr;
	94	pffasttimo();
	95	pfslowtimo();
	96	}
	97
	98	struct protosw *
99	pffindtype(family, type)
100	int family, type;
101	{
102	register struct domain *dp;
103	register struct protosw *pr;
104
105	for (dp = domains; dp; dp = dp->dom_next)
106	if (dp->dom_family == family)
107	goto found;
108	return (0);
109	found:
110	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
111	if (pr->pr_type && pr->pr_type == type)
112	return (pr);
113	return (0);
114	}
115
116	struct protosw *
117	pffindproto(family, protocol, type)
118	int family, protocol, type;
119	{
120	register struct domain *dp;
121	register struct protosw *pr;
122	struct protosw *maybe = 0;
123
124	if (family == 0)
125	return (0);
126	for (dp = domains; dp; dp = dp->dom_next)
127	if (dp->dom_family == family)
128	goto found;
129	return (0);
130	found:
131	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
132	if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
133	return (pr);
134
135	if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
136	pr->pr_protocol == 0 && maybe == (struct protosw *)0)
137	maybe = pr;
138	}
139	return (maybe);
140	}
141
142	pfctlinput(cmd, sa)
143	int cmd;
144	struct sockaddr *sa;
145	{
146	register struct domain *dp;
147	register struct protosw *pr;
148
149	for (dp = domains; dp; dp = dp->dom_next)
150	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
151	if (pr->pr_ctlinput)
152	(*pr->pr_ctlinput)(cmd, sa, (caddr_t) 0);
153	}
154
155	pfslowtimo()
156	{
157	register struct domain *dp;
158	register struct protosw *pr;
159
160	for (dp = domains; dp; dp = dp->dom_next)
161	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
162	if (pr->pr_slowtimo)
163	(*pr->pr_slowtimo)();
164	timeout(pfslowtimo, (caddr_t)0, hz/2);
165	}
166
167	pffasttimo()
168	{
169	register struct domain *dp;
170	register struct protosw *pr;
171
172	for (dp = domains; dp; dp = dp->dom_next)
173	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
174	if (pr->pr_fasttimo)
175	(*pr->pr_fasttimo)();
176	timeout(pffasttimo, (caddr_t)0, hz/5);
177	}