[apple/xnu.git] / bsd / kern / uipc_proto.c

/*
 * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*-
 * Copyright (c) 1982, 1986, 1993
 *	The 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.
 *
 *	@(#)uipc_proto.c	8.2 (Berkeley) 2/14/95
 */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/mcache.h>
#include <sys/un.h>
#include <net/raw_cb.h>
#include <sys/sysctl.h>

/*
 * Definitions of protocols supported in the UNIX domain.
 */
struct domain *localdomain = NULL;
static void pre_unp_init(struct domain *);

extern struct domain localdomain_s;

static struct protosw localsw[] = {
{
	.pr_type =	SOCK_STREAM,
	.pr_flags =	PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|PR_PCBLOCK,
	.pr_ctloutput =	uipc_ctloutput,
	.pr_usrreqs =	&uipc_usrreqs,
	.pr_lock =	unp_lock,
	.pr_unlock =	unp_unlock,
	.pr_getlock =	unp_getlock
},
{
	.pr_type =	SOCK_DGRAM,
	.pr_flags =	PR_ATOMIC|PR_ADDR|PR_RIGHTS,
	.pr_ctloutput =	uipc_ctloutput,
	.pr_usrreqs =	&uipc_usrreqs,
	.pr_lock =	unp_lock,
	.pr_unlock =	unp_unlock,
	.pr_getlock =	unp_getlock
},
{
	.pr_ctlinput =	raw_ctlinput,
	.pr_usrreqs =	&raw_usrreqs,
},
};

static int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));

static void
pre_unp_init(struct domain *dp)
{
	struct protosw *pr;
	int i;

	VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
	VERIFY(localdomain == NULL);

	localdomain = dp;

	for (i = 0, pr = &localsw[0]; i < local_proto_count; i++, pr++)
		net_add_proto(pr, dp, 1);

	unp_init();
}

struct domain localdomain_s = {
	.dom_family =		PF_LOCAL,
	.dom_name =		"unix",
	.dom_init =		pre_unp_init,
	.dom_externalize =	unp_externalize,
	.dom_dispose =		unp_dispose,
};

SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW|CTLFLAG_LOCKED,
	NULL, "Local domain");
SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW|CTLFLAG_LOCKED,
	NULL, "SOCK_STREAM");
SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW|CTLFLAG_LOCKED,
	NULL, "SOCK_DGRAM");
Commit	Line	Data
1c79356b	1	/*
39236c6e	2	* Copyright (c) 2000-2012 Apple Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
	29	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	30	/*-
	31	* Copyright (c) 1982, 1986, 1993
	32	* The Regents of the University of California. All rights reserved.
	33	*
	34	* Redistribution and use in source and binary forms, with or without
	35	* modification, are permitted provided that the following conditions
	36	* are met:
	37	* 1. Redistributions of source code must retain the above copyright
	38	* notice, this list of conditions and the following disclaimer.
	39	* 2. Redistributions in binary form must reproduce the above copyright
	40	* notice, this list of conditions and the following disclaimer in the
	41	* documentation and/or other materials provided with the distribution.
	42	* 3. All advertising materials mentioning features or use of this software
	43	* must display the following acknowledgement:
	44	* This product includes software developed by the University of
	45	* California, Berkeley and its contributors.
	46	* 4. Neither the name of the University nor the names of its contributors
	47	* may be used to endorse or promote products derived from this software
	48	* without specific prior written permission.
	49	*
	50	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	51	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	52	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	53	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	54	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	55	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	56	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	57	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	58	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	59	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	60	* SUCH DAMAGE.
	61	*
	62	* @(#)uipc_proto.c 8.2 (Berkeley) 2/14/95
	63	*/
	64
	65	#include <sys/param.h>
	66	#include <sys/socket.h>
	67	#include <sys/protosw.h>
	68	#include <sys/domain.h>
	69	#include <sys/mbuf.h>
39236c6e	70	#include <sys/mcache.h>
1c79356b A	71	#include <sys/un.h>
	72	#include <net/raw_cb.h>
	73	#include <sys/sysctl.h>
	74
	75	/*
	76	* Definitions of protocols supported in the UNIX domain.
	77	*/
39236c6e A	78	struct domain *localdomain = NULL;
39236c6e A	79	static void pre_unp_init(struct domain *);
1c79356b	80
39236c6e	81	extern struct domain localdomain_s;
1c79356b A	82
1c79356b A	83	static struct protosw localsw[] = {
39236c6e A	84	{
	85	.pr_type = SOCK_STREAM,
	86	.pr_flags = PR_CONNREQUIRED\|PR_WANTRCVD\|PR_RIGHTS\|PR_PCBLOCK,
	87	.pr_ctloutput = uipc_ctloutput,
	88	.pr_usrreqs = &uipc_usrreqs,
	89	.pr_lock = unp_lock,
	90	.pr_unlock = unp_unlock,
	91	.pr_getlock = unp_getlock
	92	},
	93	{
	94	.pr_type = SOCK_DGRAM,
	95	.pr_flags = PR_ATOMIC\|PR_ADDR\|PR_RIGHTS,
	96	.pr_ctloutput = uipc_ctloutput,
	97	.pr_usrreqs = &uipc_usrreqs,
	98	.pr_lock = unp_lock,
	99	.pr_unlock = unp_unlock,
	100	.pr_getlock = unp_getlock
	101	},
	102	{
	103	.pr_ctlinput = raw_ctlinput,
	104	.pr_usrreqs = &raw_usrreqs,
	105	},
1c79356b A	106	};
1c79356b A	107
39236c6e	108	static int local_proto_count = (sizeof (localsw) / sizeof (struct protosw));
1c79356b	109
2d21ac55	110	static void
39236c6e	111	pre_unp_init(struct domain *dp)
2d21ac55	112	{
2d21ac55	113	struct protosw *pr;
39236c6e A	114	int i;
	115
	116	VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
	117	VERIFY(localdomain == NULL);
	118
	119	localdomain = dp;
	120
	121	for (i = 0, pr = &localsw[0]; i < local_proto_count; i++, pr++)
	122	net_add_proto(pr, dp, 1);
1c79356b	123
1c79356b A	124	unp_init();
	125	}
	126
39236c6e A	127	struct domain localdomain_s = {
	128	.dom_family = PF_LOCAL,
	129	.dom_name = "unix",
	130	.dom_init = pre_unp_init,
	131	.dom_externalize = unp_externalize,
	132	.dom_dispose = unp_dispose,
2d21ac55	133	};
1c79356b	134
39236c6e A	135	SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW\|CTLFLAG_LOCKED,
	136	NULL, "Local domain");
	137	SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW\|CTLFLAG_LOCKED,
	138	NULL, "SOCK_STREAM");
	139	SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW\|CTLFLAG_LOCKED,
	140	NULL, "SOCK_DGRAM");