[apple/xnu.git] / bsd / net / raw_usrreq.c

/*
 * Copyright (c) 2000 Apple Computer, 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) 1980, 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.
 *
 *	@(#)raw_usrreq.c	8.1 (Berkeley) 6/10/93
 * $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/proc.h>
#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <kern/locks.h>

#include <net/raw_cb.h>

lck_mtx_t 	*raw_mtx;	/*### global raw cb mutex for now */
lck_attr_t 	*raw_mtx_attr;
lck_grp_t 	*raw_mtx_grp;
lck_grp_attr_t 	*raw_mtx_grp_attr;
/*
 * Initialize raw connection block q.
 */
void
raw_init()
{
	raw_mtx_grp_attr = lck_grp_attr_alloc_init();

	lck_grp_attr_setdefault(raw_mtx_grp_attr);

	raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);

	raw_mtx_attr = lck_attr_alloc_init();

	lck_attr_setdefault(raw_mtx_attr);

	if ((raw_mtx = lck_mtx_alloc_init(raw_mtx_grp, raw_mtx_attr)) == NULL) {
		printf("raw_init: can't alloc raw_mtx\n");
		return;
	}
	LIST_INIT(&rawcb_list);
}


/*
 * Raw protocol input routine.  Find the socket
 * associated with the packet(s) and move them over.  If
 * nothing exists for this packet, drop it.
 */
/*
 * Raw protocol interface.
 */
void
raw_input(m0, proto, src, dst)
	struct mbuf *m0;
	register struct sockproto *proto;
	struct sockaddr *src, *dst;
{
	register struct rawcb *rp;
	register struct mbuf *m = m0;
	register int sockets = 0;
	struct socket *last;
	int error;

//####LD raw_input is called from many places, input & output path. We have to assume the 
//####LD socket we'll find and need to append to is unlocked.
//####LD calls from the output (locked) path need to make sure the socket is not locked when
//####LD we call in raw_input
	last = 0;
	lck_mtx_lock(raw_mtx);
	LIST_FOREACH(rp, &rawcb_list, list) {
		if (rp->rcb_proto.sp_family != proto->sp_family)
			continue;
		if (rp->rcb_proto.sp_protocol  &&
		    rp->rcb_proto.sp_protocol != proto->sp_protocol)
			continue;
		/*
		 * We assume the lower level routines have
		 * placed the address in a canonical format
		 * suitable for a structure comparison.
		 *
		 * Note that if the lengths are not the same
		 * the comparison will fail at the first byte.
		 */
#define	equal(a1, a2) \
  (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
		if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
			continue;
		if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
			continue;
		if (last) {
			struct mbuf *n;
			n = m_copy(m, 0, (int)M_COPYALL);
			if (n) {
				socket_lock(last, 1);
				if (sbappendaddr(&last->so_rcv, src,
				    n, (struct mbuf *)0, &error) != 0) {
					sorwakeup(last);
					sockets++;
				}
				socket_unlock(last, 1);
			}
		}
		last = rp->rcb_socket;
	}
	if (last) {
		socket_lock(last, 1);
		if (sbappendaddr(&last->so_rcv, src,
		    m, (struct mbuf *)0, &error) != 0) {
			sorwakeup(last);
			sockets++;
		}
		socket_unlock(last, 1);
	} else
		m_freem(m);
	lck_mtx_unlock(raw_mtx);
}

/*ARGSUSED*/
void
raw_ctlinput(cmd, arg, dummy)
	int cmd;
	struct sockaddr *arg;
	void *dummy;
{

	if (cmd < 0 || cmd > PRC_NCMDS)
		return;
	/* INCOMPLETE */
}

static int
raw_uabort(struct socket *so)
{
	struct rawcb *rp = sotorawcb(so);

	lck_mtx_t * mutex_held;
	if (so->so_proto->pr_getlock != NULL)
		mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	else
		mutex_held = so->so_proto->pr_domain->dom_mtx;
	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);

	if (rp == 0)
		return EINVAL;
	raw_disconnect(rp);
	sofree(so);
	soisdisconnected(so);
	return 0;
}

/* pru_accept is EOPNOTSUPP */

static int
raw_uattach(struct socket *so, int proto, struct proc *p)
{
	struct rawcb *rp = sotorawcb(so);
#ifndef __APPLE__
	int error;
#endif

	if (rp == 0)
		return EINVAL;
#ifdef __APPLE__
		if ((so->so_state & SS_PRIV) == 0)
			return (EPERM);
#else
	if (p && (error = suser(p)) != 0)
		return error;
#endif
	return raw_attach(so, proto);
}

static int
raw_ubind(struct socket *so, struct sockaddr *nam, struct proc *p)
{
	return EINVAL;
}

static int
raw_uconnect(struct socket *so, struct sockaddr *nam, struct proc *p)
{
	return EINVAL;
}

/* pru_connect2 is EOPNOTSUPP */
/* pru_control is EOPNOTSUPP */

static int
raw_udetach(struct socket *so)
{
	struct rawcb *rp = sotorawcb(so);

	lck_mtx_t * mutex_held;
	if (so->so_proto->pr_getlock != NULL)
		mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	else
		mutex_held = so->so_proto->pr_domain->dom_mtx;
	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
	if (rp == 0)
		return EINVAL;

	raw_detach(rp);
	return 0;
}

static int
raw_udisconnect(struct socket *so)
{
	struct rawcb *rp = sotorawcb(so);

	if (rp == 0)
		return EINVAL;
	if (rp->rcb_faddr == 0) {
		return ENOTCONN;
	}
	raw_disconnect(rp);
	soisdisconnected(so);
	return 0;
}

/* pru_listen is EOPNOTSUPP */

static int
raw_upeeraddr(struct socket *so, struct sockaddr **nam)
{
	struct rawcb *rp = sotorawcb(so);

	if (rp == 0)
		return EINVAL;
	if (rp->rcb_faddr == 0) {
		return ENOTCONN;
	}
	*nam = dup_sockaddr(rp->rcb_faddr, 1);
	return 0;
}

/* pru_rcvd is EOPNOTSUPP */
/* pru_rcvoob is EOPNOTSUPP */

static int
raw_usend(struct socket *so, int flags, struct mbuf *m,
	  struct sockaddr *nam, struct mbuf *control, struct proc *p)
{
	int error;
	struct rawcb *rp = sotorawcb(so);

	lck_mtx_t * mutex_held;
	if (so->so_proto->pr_getlock != NULL)
		mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	else
		mutex_held = so->so_proto->pr_domain->dom_mtx;
	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);

	if (rp == 0) {
		error = EINVAL;
		goto release;
	}

	if (flags & PRUS_OOB) {
		error = EOPNOTSUPP;
		goto release;
	}

	if (control && control->m_len) {
		error = EOPNOTSUPP;
		goto release;
	}
	if (nam) {
		if (rp->rcb_faddr) {
			error = EISCONN;
			goto release;
		}
		rp->rcb_faddr = nam;
	} else if (rp->rcb_faddr == 0) {
		error = ENOTCONN;
		goto release;
	}
	error = (*so->so_proto->pr_output)(m, so);
	m = NULL;
	if (nam)
		rp->rcb_faddr = 0;
release:
	if (m != NULL)
		m_freem(m);
	return (error);
}

/* pru_sense is null */

static int
raw_ushutdown(struct socket *so)
{
	struct rawcb *rp = sotorawcb(so);
	lck_mtx_t * mutex_held;
	if (so->so_proto->pr_getlock != NULL)
		mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	else
		mutex_held = so->so_proto->pr_domain->dom_mtx;
	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);

	if (rp == 0)
		return EINVAL;
	socantsendmore(so);
	return 0;
}

static int
raw_usockaddr(struct socket *so, struct sockaddr **nam)
{
	struct rawcb *rp = sotorawcb(so);

	if (rp == 0)
		return EINVAL;
	if (rp->rcb_laddr == 0)
		return EINVAL;
	*nam = dup_sockaddr(rp->rcb_laddr, 1);
	return 0;
}

struct pr_usrreqs raw_usrreqs = {
	raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
	pru_connect2_notsupp, pru_control_notsupp, raw_udetach, 
	raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
	pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
	raw_usockaddr, sosend, soreceive, pru_sopoll_notsupp
};
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
8f6c56a5	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
8f6c56a5 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.
	14	*
	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
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
8ad349bb	24	* limitations under the License.
8f6c56a5 A	25	*
8f6c56a5 A	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* Copyright (c) 1980, 1986, 1993
	30	* The Regents of the University of California. All rights reserved.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	* 1. Redistributions of source code must retain the above copyright
	36	* notice, this list of conditions and the following disclaimer.
	37	* 2. Redistributions in binary form must reproduce the above copyright
	38	* notice, this list of conditions and the following disclaimer in the
	39	* documentation and/or other materials provided with the distribution.
	40	* 3. All advertising materials mentioning features or use of this software
	41	* must display the following acknowledgement:
	42	* This product includes software developed by the University of
	43	* California, Berkeley and its contributors.
	44	* 4. Neither the name of the University nor the names of its contributors
	45	* may be used to endorse or promote products derived from this software
	46	* without specific prior written permission.
	47	*
	48	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	49	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	50	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	51	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	52	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	53	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	54	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	56	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	57	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	58	* SUCH DAMAGE.
	59	*
	60	* @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
9bccf70c	61	* $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
1c79356b A	62	*/
	63
	64	#include <sys/param.h>
	65	#include <sys/systm.h>
	66	#include <sys/mbuf.h>
	67	#include <sys/proc.h>
91447636	68	#include <sys/domain.h>
1c79356b A	69	#include <sys/protosw.h>
	70	#include <sys/socket.h>
	71	#include <sys/socketvar.h>
91447636	72	#include <kern/locks.h>
1c79356b A	73
	74	#include <net/raw_cb.h>
	75
91447636 A	76	lck_mtx_t raw_mtx; /### global raw cb mutex for now */
	77	lck_attr_t *raw_mtx_attr;
	78	lck_grp_t *raw_mtx_grp;
	79	lck_grp_attr_t *raw_mtx_grp_attr;
1c79356b A	80	/*
	81	* Initialize raw connection block q.
	82	*/
	83	void
	84	raw_init()
	85	{
91447636 A	86	raw_mtx_grp_attr = lck_grp_attr_alloc_init();
91447636 A	87
8f6c56a5 A	88	lck_grp_attr_setdefault(raw_mtx_grp_attr);
8f6c56a5 A	89
91447636 A	90	raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);
	91
	92	raw_mtx_attr = lck_attr_alloc_init();
	93
8f6c56a5 A	94	lck_attr_setdefault(raw_mtx_attr);
8f6c56a5 A	95
91447636 A	96	if ((raw_mtx = lck_mtx_alloc_init(raw_mtx_grp, raw_mtx_attr)) == NULL) {
	97	printf("raw_init: can't alloc raw_mtx\n");
	98	return;
	99	}
1c79356b A	100	LIST_INIT(&rawcb_list);
	101	}
	102
	103
	104	/*
	105	* Raw protocol input routine. Find the socket
	106	* associated with the packet(s) and move them over. If
	107	* nothing exists for this packet, drop it.
	108	*/
	109	/*
	110	* Raw protocol interface.
	111	*/
	112	void
	113	raw_input(m0, proto, src, dst)
	114	struct mbuf *m0;
	115	register struct sockproto *proto;
	116	struct sockaddr src, dst;
	117	{
	118	register struct rawcb *rp;
	119	register struct mbuf *m = m0;
	120	register int sockets = 0;
	121	struct socket *last;
91447636	122	int error;
1c79356b	123
91447636 A	124	//####LD raw_input is called from many places, input & output path. We have to assume the
	125	//####LD socket we'll find and need to append to is unlocked.
	126	//####LD calls from the output (locked) path need to make sure the socket is not locked when
	127	//####LD we call in raw_input
1c79356b	128	last = 0;
91447636	129	lck_mtx_lock(raw_mtx);
1c79356b A	130	LIST_FOREACH(rp, &rawcb_list, list) {
	131	if (rp->rcb_proto.sp_family != proto->sp_family)
	132	continue;
	133	if (rp->rcb_proto.sp_protocol &&
	134	rp->rcb_proto.sp_protocol != proto->sp_protocol)
	135	continue;
	136	/*
	137	* We assume the lower level routines have
	138	* placed the address in a canonical format
	139	* suitable for a structure comparison.
	140	*
	141	* Note that if the lengths are not the same
	142	* the comparison will fail at the first byte.
	143	*/
	144	#define equal(a1, a2) \
	145	(bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
	146	if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
	147	continue;
	148	if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
	149	continue;
	150	if (last) {
	151	struct mbuf *n;
	152	n = m_copy(m, 0, (int)M_COPYALL);
	153	if (n) {
91447636	154	socket_lock(last, 1);
1c79356b	155	if (sbappendaddr(&last->so_rcv, src,
91447636	156	n, (struct mbuf *)0, &error) != 0) {
1c79356b A	157	sorwakeup(last);
	158	sockets++;
	159	}
91447636	160	socket_unlock(last, 1);
1c79356b A	161	}
	162	}
	163	last = rp->rcb_socket;
	164	}
	165	if (last) {
91447636	166	socket_lock(last, 1);
1c79356b	167	if (sbappendaddr(&last->so_rcv, src,
91447636	168	m, (struct mbuf *)0, &error) != 0) {
1c79356b A	169	sorwakeup(last);
	170	sockets++;
	171	}
91447636	172	socket_unlock(last, 1);
1c79356b A	173	} else
1c79356b A	174	m_freem(m);
91447636	175	lck_mtx_unlock(raw_mtx);
1c79356b A	176	}
	177
	178	/ARGSUSED/
	179	void
	180	raw_ctlinput(cmd, arg, dummy)
	181	int cmd;
	182	struct sockaddr *arg;
	183	void *dummy;
	184	{
	185
	186	if (cmd < 0 \|\| cmd > PRC_NCMDS)
	187	return;
	188	/* INCOMPLETE */
	189	}
	190
	191	static int
	192	raw_uabort(struct socket *so)
	193	{
	194	struct rawcb *rp = sotorawcb(so);
	195
91447636 A	196	lck_mtx_t * mutex_held;
	197	if (so->so_proto->pr_getlock != NULL)
	198	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	199	else
	200	mutex_held = so->so_proto->pr_domain->dom_mtx;
	201	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
	202
1c79356b A	203	if (rp == 0)
	204	return EINVAL;
	205	raw_disconnect(rp);
	206	sofree(so);
	207	soisdisconnected(so);
	208	return 0;
	209	}
	210
	211	/* pru_accept is EOPNOTSUPP */
	212
	213	static int
	214	raw_uattach(struct socket so, int proto, struct proc p)
	215	{
	216	struct rawcb *rp = sotorawcb(so);
91447636	217	#ifndef __APPLE__
1c79356b	218	int error;
91447636	219	#endif
1c79356b A	220
	221	if (rp == 0)
	222	return EINVAL;
9bccf70c	223	#ifdef __APPLE__
1c79356b A	224	if ((so->so_state & SS_PRIV) == 0)
1c79356b A	225	return (EPERM);
9bccf70c A	226	#else
	227	if (p && (error = suser(p)) != 0)
	228	return error;
1c79356b	229	#endif
1c79356b A	230	return raw_attach(so, proto);
	231	}
	232
	233	static int
	234	raw_ubind(struct socket so, struct sockaddr nam, struct proc *p)
	235	{
	236	return EINVAL;
	237	}
	238
	239	static int
	240	raw_uconnect(struct socket so, struct sockaddr nam, struct proc *p)
	241	{
	242	return EINVAL;
	243	}
	244
	245	/* pru_connect2 is EOPNOTSUPP */
	246	/* pru_control is EOPNOTSUPP */
	247
	248	static int
	249	raw_udetach(struct socket *so)
	250	{
	251	struct rawcb *rp = sotorawcb(so);
	252
91447636 A	253	lck_mtx_t * mutex_held;
	254	if (so->so_proto->pr_getlock != NULL)
	255	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	256	else
	257	mutex_held = so->so_proto->pr_domain->dom_mtx;
	258	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
1c79356b A	259	if (rp == 0)
	260	return EINVAL;
	261
	262	raw_detach(rp);
	263	return 0;
	264	}
	265
	266	static int
	267	raw_udisconnect(struct socket *so)
	268	{
	269	struct rawcb *rp = sotorawcb(so);
	270
	271	if (rp == 0)
	272	return EINVAL;
	273	if (rp->rcb_faddr == 0) {
	274	return ENOTCONN;
	275	}
	276	raw_disconnect(rp);
	277	soisdisconnected(so);
	278	return 0;
	279	}
	280
	281	/* pru_listen is EOPNOTSUPP */
	282
	283	static int
	284	raw_upeeraddr(struct socket so, struct sockaddr *nam)
	285	{
	286	struct rawcb *rp = sotorawcb(so);
	287
	288	if (rp == 0)
	289	return EINVAL;
	290	if (rp->rcb_faddr == 0) {
	291	return ENOTCONN;
	292	}
	293	*nam = dup_sockaddr(rp->rcb_faddr, 1);
	294	return 0;
	295	}
	296
	297	/* pru_rcvd is EOPNOTSUPP */
	298	/* pru_rcvoob is EOPNOTSUPP */
	299
	300	static int
	301	raw_usend(struct socket so, int flags, struct mbuf m,
	302	struct sockaddr nam, struct mbuf control, struct proc *p)
	303	{
	304	int error;
	305	struct rawcb *rp = sotorawcb(so);
	306
91447636 A	307	lck_mtx_t * mutex_held;
	308	if (so->so_proto->pr_getlock != NULL)
	309	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	310	else
	311	mutex_held = so->so_proto->pr_domain->dom_mtx;
	312	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
	313
1c79356b A	314	if (rp == 0) {
	315	error = EINVAL;
	316	goto release;
	317	}
	318
	319	if (flags & PRUS_OOB) {
	320	error = EOPNOTSUPP;
	321	goto release;
	322	}
	323
	324	if (control && control->m_len) {
	325	error = EOPNOTSUPP;
	326	goto release;
	327	}
	328	if (nam) {
	329	if (rp->rcb_faddr) {
	330	error = EISCONN;
	331	goto release;
	332	}
	333	rp->rcb_faddr = nam;
	334	} else if (rp->rcb_faddr == 0) {
	335	error = ENOTCONN;
	336	goto release;
	337	}
	338	error = (*so->so_proto->pr_output)(m, so);
	339	m = NULL;
	340	if (nam)
	341	rp->rcb_faddr = 0;
	342	release:
	343	if (m != NULL)
	344	m_freem(m);
	345	return (error);
	346	}
	347
	348	/* pru_sense is null */
	349
	350	static int
	351	raw_ushutdown(struct socket *so)
	352	{
	353	struct rawcb *rp = sotorawcb(so);
91447636 A	354	lck_mtx_t * mutex_held;
	355	if (so->so_proto->pr_getlock != NULL)
	356	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	357	else
	358	mutex_held = so->so_proto->pr_domain->dom_mtx;
	359	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
1c79356b A	360
	361	if (rp == 0)
	362	return EINVAL;
	363	socantsendmore(so);
	364	return 0;
	365	}
	366
	367	static int
	368	raw_usockaddr(struct socket so, struct sockaddr *nam)
	369	{
	370	struct rawcb *rp = sotorawcb(so);
	371
	372	if (rp == 0)
	373	return EINVAL;
	374	if (rp->rcb_laddr == 0)
	375	return EINVAL;
	376	*nam = dup_sockaddr(rp->rcb_laddr, 1);
	377	return 0;
	378	}
	379
	380	struct pr_usrreqs raw_usrreqs = {
	381	raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
	382	pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
	383	raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
	384	pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
91447636	385	raw_usockaddr, sosend, soreceive, pru_sopoll_notsupp
1c79356b	386	};