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

/*
 * Copyright (c) 2000-2010 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) 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>

decl_lck_mtx_data(,raw_mtx_data);	/*### global raw cb mutex for now */
lck_mtx_t 	*raw_mtx = &raw_mtx_data;
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(void)
{
	raw_mtx_grp_attr = lck_grp_attr_alloc_init();

	raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);

	raw_mtx_attr = lck_attr_alloc_init();

	lck_mtx_init(raw_mtx, raw_mtx_grp, raw_mtx_attr);
	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(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
	  struct sockaddr *dst)
{
	struct rawcb *rp;
	struct mbuf *m = m0;
	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 = NULL;
	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(int cmd, __unused struct sockaddr *arg, __unused 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, __unused struct proc *p)
{
	struct rawcb *rp = sotorawcb(so);

	if (rp == 0)
		return EINVAL;
		if ((so->so_state & SS_PRIV) == 0)
			return (EPERM);
	return raw_attach(so, proto);
}

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

static int
raw_uconnect(__unused struct socket *so, __unused struct sockaddr *nam, __unused 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, __unused 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 (so->so_proto->pr_output == NULL) {
		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 = NULL;
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	/*
0b4c1975	2	* Copyright (c) 2000-2010 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	/*
	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
316670eb A	76	decl_lck_mtx_data(,raw_mtx_data); /### global raw cb mutex for now /
316670eb A	77	lck_mtx_t *raw_mtx = &raw_mtx_data;
91447636 A	78	lck_attr_t *raw_mtx_attr;
	79	lck_grp_t *raw_mtx_grp;
	80	lck_grp_attr_t *raw_mtx_grp_attr;
1c79356b A	81	/*
	82	* Initialize raw connection block q.
	83	*/
	84	void
2d21ac55	85	raw_init(void)
1c79356b	86	{
91447636 A	87	raw_mtx_grp_attr = lck_grp_attr_alloc_init();
91447636 A	88
91447636 A	89	raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);
	90
	91	raw_mtx_attr = lck_attr_alloc_init();
	92
316670eb	93	lck_mtx_init(raw_mtx, raw_mtx_grp, raw_mtx_attr);
1c79356b A	94	LIST_INIT(&rawcb_list);
	95	}
	96
	97
	98	/*
	99	* Raw protocol input routine. Find the socket
	100	* associated with the packet(s) and move them over. If
	101	* nothing exists for this packet, drop it.
	102	*/
	103	/*
	104	* Raw protocol interface.
	105	*/
	106	void
2d21ac55 A	107	raw_input(struct mbuf m0, struct sockproto proto, struct sockaddr *src,
2d21ac55 A	108	struct sockaddr *dst)
1c79356b	109	{
2d21ac55 A	110	struct rawcb *rp;
	111	struct mbuf *m = m0;
	112	int sockets = 0;
1c79356b	113	struct socket *last;
91447636	114	int error;
1c79356b	115
91447636 A	116	//####LD raw_input is called from many places, input & output path. We have to assume the
	117	//####LD socket we'll find and need to append to is unlocked.
	118	//####LD calls from the output (locked) path need to make sure the socket is not locked when
	119	//####LD we call in raw_input
2d21ac55	120	last = NULL;
91447636	121	lck_mtx_lock(raw_mtx);
1c79356b A	122	LIST_FOREACH(rp, &rawcb_list, list) {
	123	if (rp->rcb_proto.sp_family != proto->sp_family)
	124	continue;
	125	if (rp->rcb_proto.sp_protocol &&
	126	rp->rcb_proto.sp_protocol != proto->sp_protocol)
	127	continue;
	128	/*
	129	* We assume the lower level routines have
	130	* placed the address in a canonical format
	131	* suitable for a structure comparison.
	132	*
	133	* Note that if the lengths are not the same
	134	* the comparison will fail at the first byte.
	135	*/
	136	#define equal(a1, a2) \
	137	(bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
	138	if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
	139	continue;
	140	if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
	141	continue;
	142	if (last) {
	143	struct mbuf *n;
	144	n = m_copy(m, 0, (int)M_COPYALL);
	145	if (n) {
91447636	146	socket_lock(last, 1);
1c79356b	147	if (sbappendaddr(&last->so_rcv, src,
91447636	148	n, (struct mbuf *)0, &error) != 0) {
1c79356b A	149	sorwakeup(last);
	150	sockets++;
	151	}
91447636	152	socket_unlock(last, 1);
1c79356b A	153	}
	154	}
	155	last = rp->rcb_socket;
	156	}
	157	if (last) {
91447636	158	socket_lock(last, 1);
1c79356b	159	if (sbappendaddr(&last->so_rcv, src,
91447636	160	m, (struct mbuf *)0, &error) != 0) {
1c79356b A	161	sorwakeup(last);
	162	sockets++;
	163	}
91447636	164	socket_unlock(last, 1);
1c79356b A	165	} else
1c79356b A	166	m_freem(m);
91447636	167	lck_mtx_unlock(raw_mtx);
1c79356b A	168	}
	169
	170	/ARGSUSED/
	171	void
2d21ac55	172	raw_ctlinput(int cmd, __unused struct sockaddr arg, __unused void dummy)
1c79356b A	173	{
	174
	175	if (cmd < 0 \|\| cmd > PRC_NCMDS)
	176	return;
	177	/* INCOMPLETE */
	178	}
	179
	180	static int
	181	raw_uabort(struct socket *so)
	182	{
	183	struct rawcb *rp = sotorawcb(so);
	184
91447636 A	185	lck_mtx_t * mutex_held;
	186	if (so->so_proto->pr_getlock != NULL)
	187	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	188	else
	189	mutex_held = so->so_proto->pr_domain->dom_mtx;
	190	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
	191
1c79356b A	192	if (rp == 0)
	193	return EINVAL;
	194	raw_disconnect(rp);
	195	sofree(so);
	196	soisdisconnected(so);
	197	return 0;
	198	}
	199
	200	/* pru_accept is EOPNOTSUPP */
	201
	202	static int
2d21ac55	203	raw_uattach(struct socket so, int proto, __unused struct proc p)
1c79356b A	204	{
1c79356b A	205	struct rawcb *rp = sotorawcb(so);
1c79356b A	206
	207	if (rp == 0)
	208	return EINVAL;
1c79356b A	209	if ((so->so_state & SS_PRIV) == 0)
1c79356b A	210	return (EPERM);
1c79356b A	211	return raw_attach(so, proto);
	212	}
	213
	214	static int
2d21ac55	215	raw_ubind(__unused struct socket so, __unused struct sockaddr nam, __unused struct proc *p)
1c79356b A	216	{
	217	return EINVAL;
	218	}
	219
	220	static int
2d21ac55	221	raw_uconnect(__unused struct socket so, __unused struct sockaddr nam, __unused struct proc *p)
1c79356b A	222	{
	223	return EINVAL;
	224	}
	225
	226	/* pru_connect2 is EOPNOTSUPP */
	227	/* pru_control is EOPNOTSUPP */
	228
	229	static int
	230	raw_udetach(struct socket *so)
	231	{
	232	struct rawcb *rp = sotorawcb(so);
	233
91447636 A	234	lck_mtx_t * mutex_held;
	235	if (so->so_proto->pr_getlock != NULL)
	236	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	237	else
	238	mutex_held = so->so_proto->pr_domain->dom_mtx;
	239	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
1c79356b A	240	if (rp == 0)
	241	return EINVAL;
	242
	243	raw_detach(rp);
	244	return 0;
	245	}
	246
	247	static int
	248	raw_udisconnect(struct socket *so)
	249	{
	250	struct rawcb *rp = sotorawcb(so);
	251
	252	if (rp == 0)
	253	return EINVAL;
	254	if (rp->rcb_faddr == 0) {
	255	return ENOTCONN;
	256	}
	257	raw_disconnect(rp);
	258	soisdisconnected(so);
	259	return 0;
	260	}
	261
	262	/* pru_listen is EOPNOTSUPP */
	263
	264	static int
	265	raw_upeeraddr(struct socket so, struct sockaddr *nam)
	266	{
	267	struct rawcb *rp = sotorawcb(so);
	268
	269	if (rp == 0)
	270	return EINVAL;
	271	if (rp->rcb_faddr == 0) {
	272	return ENOTCONN;
	273	}
	274	*nam = dup_sockaddr(rp->rcb_faddr, 1);
	275	return 0;
	276	}
	277
	278	/* pru_rcvd is EOPNOTSUPP */
	279	/* pru_rcvoob is EOPNOTSUPP */
	280
	281	static int
	282	raw_usend(struct socket so, int flags, struct mbuf m,
2d21ac55	283	struct sockaddr nam, struct mbuf control, __unused struct proc *p)
1c79356b A	284	{
	285	int error;
	286	struct rawcb *rp = sotorawcb(so);
	287
91447636 A	288	lck_mtx_t * mutex_held;
	289	if (so->so_proto->pr_getlock != NULL)
	290	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	291	else
	292	mutex_held = so->so_proto->pr_domain->dom_mtx;
	293	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
	294
1c79356b A	295	if (rp == 0) {
	296	error = EINVAL;
	297	goto release;
	298	}
	299
	300	if (flags & PRUS_OOB) {
	301	error = EOPNOTSUPP;
	302	goto release;
	303	}
	304
0b4c1975 A	305	if (so->so_proto->pr_output == NULL) {
	306	error = EOPNOTSUPP;
	307	goto release;
	308	}
	309
1c79356b A	310	if (control && control->m_len) {
	311	error = EOPNOTSUPP;
	312	goto release;
	313	}
	314	if (nam) {
	315	if (rp->rcb_faddr) {
	316	error = EISCONN;
	317	goto release;
	318	}
	319	rp->rcb_faddr = nam;
	320	} else if (rp->rcb_faddr == 0) {
	321	error = ENOTCONN;
	322	goto release;
	323	}
	324	error = (*so->so_proto->pr_output)(m, so);
	325	m = NULL;
	326	if (nam)
2d21ac55	327	rp->rcb_faddr = NULL;
1c79356b A	328	release:
	329	if (m != NULL)
	330	m_freem(m);
	331	return (error);
	332	}
	333
	334	/* pru_sense is null */
	335
	336	static int
	337	raw_ushutdown(struct socket *so)
	338	{
	339	struct rawcb *rp = sotorawcb(so);
91447636 A	340	lck_mtx_t * mutex_held;
	341	if (so->so_proto->pr_getlock != NULL)
	342	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
	343	else
	344	mutex_held = so->so_proto->pr_domain->dom_mtx;
	345	lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
1c79356b A	346
	347	if (rp == 0)
	348	return EINVAL;
	349	socantsendmore(so);
	350	return 0;
	351	}
	352
	353	static int
	354	raw_usockaddr(struct socket so, struct sockaddr *nam)
	355	{
	356	struct rawcb *rp = sotorawcb(so);
	357
	358	if (rp == 0)
	359	return EINVAL;
	360	if (rp->rcb_laddr == 0)
	361	return EINVAL;
	362	*nam = dup_sockaddr(rp->rcb_laddr, 1);
	363	return 0;
	364	}
	365
	366	struct pr_usrreqs raw_usrreqs = {
	367	raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
	368	pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
	369	raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
	370	pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
91447636	371	raw_usockaddr, sosend, soreceive, pru_sopoll_notsupp
1c79356b	372	};