[apple/xnu.git] / bsd / net / raw_usrreq.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) 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(struct protosw *pp, struct domain *dp)
{
#pragma unused(pp, dp)
	static int raw_initialized = 0;

	/* This is called by key_init as well, so do it only once */
	if (!raw_initialized) {
		raw_initialized = 1;

		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,
    __unused struct ifnet *ifp)
{
	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 != NULL) {
		m_freem(control);
		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 = {
	.pru_abort =            raw_uabort,
	.pru_attach =           raw_uattach,
	.pru_bind =             raw_ubind,
	.pru_connect =          raw_uconnect,
	.pru_detach =           raw_udetach,
	.pru_disconnect =       raw_udisconnect,
	.pru_peeraddr =         raw_upeeraddr,
	.pru_send =             raw_usend,
	.pru_shutdown =         raw_ushutdown,
	.pru_sockaddr =         raw_usockaddr,
	.pru_sosend =           sosend,
	.pru_soreceive =        soreceive,
};
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@
0a7de745	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.
0a7de745	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
2d21ac55 A	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
0a7de745	17	*
2d21ac55 A	18	* The Original Code and all software distributed under the License are
2d21ac55 A	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.
0a7de745	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
0a7de745 A	76	decl_lck_mtx_data(, raw_mtx_data); /### global raw cb mutex for now /
	77	lck_mtx_t *raw_mtx = &raw_mtx_data;
	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
39236c6e	85	raw_init(struct protosw pp, struct domain dp)
1c79356b	86	{
39236c6e A	87	#pragma unused(pp, dp)
39236c6e A	88	static int raw_initialized = 0;
91447636	89
39236c6e A	90	/* This is called by key_init as well, so do it only once */
	91	if (!raw_initialized) {
	92	raw_initialized = 1;
91447636	93
39236c6e A	94	raw_mtx_grp_attr = lck_grp_attr_alloc_init();
	95	raw_mtx_grp = lck_grp_alloc_init("rawcb", raw_mtx_grp_attr);
	96	raw_mtx_attr = lck_attr_alloc_init();
91447636	97
39236c6e A	98	lck_mtx_init(raw_mtx, raw_mtx_grp, raw_mtx_attr);
	99	LIST_INIT(&rawcb_list);
	100	}
1c79356b A	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
2d21ac55	113	raw_input(struct mbuf m0, struct sockproto proto, struct sockaddr *src,
0a7de745	114	struct sockaddr *dst)
1c79356b	115	{
2d21ac55 A	116	struct rawcb *rp;
	117	struct mbuf *m = m0;
	118	int sockets = 0;
1c79356b	119	struct socket *last;
91447636	120	int error;
1c79356b	121
0a7de745	122	//####LD raw_input is called from many places, input & output path. We have to assume the
91447636 A	123	//####LD socket we'll find and need to append to is unlocked.
	124	//####LD calls from the output (locked) path need to make sure the socket is not locked when
	125	//####LD we call in raw_input
2d21ac55	126	last = NULL;
91447636	127	lck_mtx_lock(raw_mtx);
1c79356b	128	LIST_FOREACH(rp, &rawcb_list, list) {
0a7de745	129	if (rp->rcb_proto.sp_family != proto->sp_family) {
1c79356b	130	continue;
0a7de745 A	131	}
	132	if (rp->rcb_proto.sp_protocol &&
	133	rp->rcb_proto.sp_protocol != proto->sp_protocol) {
1c79356b	134	continue;
0a7de745	135	}
1c79356b A	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	*/
0a7de745	144	#define equal(a1, a2) \
1c79356b	145	(bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
0a7de745	146	if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst)) {
1c79356b	147	continue;
0a7de745 A	148	}
0a7de745 A	149	if (rp->rcb_faddr && !equal(rp->rcb_faddr, src)) {
1c79356b	150	continue;
0a7de745	151	}
1c79356b A	152	if (last) {
	153	struct mbuf *n;
	154	n = m_copy(m, 0, (int)M_COPYALL);
	155	if (n) {
91447636	156	socket_lock(last, 1);
1c79356b	157	if (sbappendaddr(&last->so_rcv, src,
91447636	158	n, (struct mbuf *)0, &error) != 0) {
1c79356b A	159	sorwakeup(last);
	160	sockets++;
	161	}
91447636	162	socket_unlock(last, 1);
1c79356b A	163	}
	164	}
	165	last = rp->rcb_socket;
	166	}
	167	if (last) {
91447636	168	socket_lock(last, 1);
1c79356b	169	if (sbappendaddr(&last->so_rcv, src,
91447636	170	m, (struct mbuf *)0, &error) != 0) {
1c79356b A	171	sorwakeup(last);
	172	sockets++;
	173	}
91447636	174	socket_unlock(last, 1);
0a7de745	175	} else {
1c79356b	176	m_freem(m);
0a7de745	177	}
91447636	178	lck_mtx_unlock(raw_mtx);
1c79356b A	179	}
	180
	181	/ARGSUSED/
	182	void
5ba3f43e A	183	raw_ctlinput(int cmd, __unused struct sockaddr arg, __unused void dummy,
5ba3f43e A	184	__unused struct ifnet *ifp)
1c79356b	185	{
0a7de745	186	if (cmd < 0 \|\| cmd >= PRC_NCMDS) {
1c79356b	187	return;
0a7de745	188	}
1c79356b A	189	/* INCOMPLETE */
	190	}
	191
	192	static int
	193	raw_uabort(struct socket *so)
	194	{
	195	struct rawcb *rp = sotorawcb(so);
	196
91447636	197	lck_mtx_t * mutex_held;
0a7de745	198	if (so->so_proto->pr_getlock != NULL) {
91447636	199	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
0a7de745	200	} else {
91447636	201	mutex_held = so->so_proto->pr_domain->dom_mtx;
0a7de745	202	}
5ba3f43e	203	LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
91447636	204
0a7de745	205	if (rp == 0) {
1c79356b	206	return EINVAL;
0a7de745	207	}
1c79356b A	208	raw_disconnect(rp);
	209	sofree(so);
	210	soisdisconnected(so);
	211	return 0;
	212	}
	213
	214	/* pru_accept is EOPNOTSUPP */
	215
	216	static int
2d21ac55	217	raw_uattach(struct socket so, int proto, __unused struct proc p)
1c79356b A	218	{
1c79356b A	219	struct rawcb *rp = sotorawcb(so);
1c79356b	220
0a7de745	221	if (rp == 0) {
1c79356b	222	return EINVAL;
0a7de745 A	223	}
	224	if ((so->so_state & SS_PRIV) == 0) {
	225	return EPERM;
	226	}
1c79356b A	227	return raw_attach(so, proto);
	228	}
	229
	230	static int
2d21ac55	231	raw_ubind(__unused struct socket so, __unused struct sockaddr nam, __unused struct proc *p)
1c79356b A	232	{
	233	return EINVAL;
	234	}
	235
	236	static int
2d21ac55	237	raw_uconnect(__unused struct socket so, __unused struct sockaddr nam, __unused struct proc *p)
1c79356b A	238	{
	239	return EINVAL;
	240	}
	241
	242	/* pru_connect2 is EOPNOTSUPP */
	243	/* pru_control is EOPNOTSUPP */
	244
	245	static int
	246	raw_udetach(struct socket *so)
	247	{
	248	struct rawcb *rp = sotorawcb(so);
	249
91447636	250	lck_mtx_t * mutex_held;
0a7de745	251	if (so->so_proto->pr_getlock != NULL) {
91447636	252	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
0a7de745	253	} else {
91447636	254	mutex_held = so->so_proto->pr_domain->dom_mtx;
0a7de745	255	}
5ba3f43e	256	LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
0a7de745	257	if (rp == 0) {
1c79356b	258	return EINVAL;
0a7de745	259	}
1c79356b A	260
	261	raw_detach(rp);
	262	return 0;
	263	}
	264
	265	static int
	266	raw_udisconnect(struct socket *so)
	267	{
	268	struct rawcb *rp = sotorawcb(so);
	269
0a7de745	270	if (rp == 0) {
1c79356b	271	return EINVAL;
0a7de745	272	}
1c79356b A	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
0a7de745	288	if (rp == 0) {
1c79356b	289	return EINVAL;
0a7de745	290	}
1c79356b A	291	if (rp->rcb_faddr == 0) {
	292	return ENOTCONN;
	293	}
	294	*nam = dup_sockaddr(rp->rcb_faddr, 1);
	295	return 0;
	296	}
	297
	298	/* pru_rcvd is EOPNOTSUPP */
	299	/* pru_rcvoob is EOPNOTSUPP */
	300
	301	static int
	302	raw_usend(struct socket so, int flags, struct mbuf m,
0a7de745	303	struct sockaddr nam, struct mbuf control, __unused struct proc *p)
1c79356b A	304	{
	305	int error;
	306	struct rawcb *rp = sotorawcb(so);
	307
91447636	308	lck_mtx_t * mutex_held;
0a7de745	309	if (so->so_proto->pr_getlock != NULL) {
91447636	310	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
0a7de745	311	} else {
91447636	312	mutex_held = so->so_proto->pr_domain->dom_mtx;
0a7de745	313	}
5ba3f43e	314	LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
91447636	315
1c79356b A	316	if (rp == 0) {
	317	error = EINVAL;
	318	goto release;
	319	}
	320
	321	if (flags & PRUS_OOB) {
	322	error = EOPNOTSUPP;
	323	goto release;
	324	}
	325
0b4c1975 A	326	if (so->so_proto->pr_output == NULL) {
	327	error = EOPNOTSUPP;
	328	goto release;
	329	}
	330
f427ee49 A	331	if (control != NULL) {
f427ee49 A	332	m_freem(control);
1c79356b A	333	error = EOPNOTSUPP;
	334	goto release;
	335	}
	336	if (nam) {
	337	if (rp->rcb_faddr) {
	338	error = EISCONN;
	339	goto release;
	340	}
	341	rp->rcb_faddr = nam;
	342	} else if (rp->rcb_faddr == 0) {
	343	error = ENOTCONN;
	344	goto release;
	345	}
	346	error = (*so->so_proto->pr_output)(m, so);
	347	m = NULL;
0a7de745	348	if (nam) {
2d21ac55	349	rp->rcb_faddr = NULL;
0a7de745	350	}
1c79356b	351	release:
0a7de745	352	if (m != NULL) {
1c79356b	353	m_freem(m);
0a7de745 A	354	}
0a7de745 A	355	return error;
1c79356b A	356	}
	357
	358	/* pru_sense is null */
	359
	360	static int
	361	raw_ushutdown(struct socket *so)
	362	{
	363	struct rawcb *rp = sotorawcb(so);
91447636	364	lck_mtx_t * mutex_held;
0a7de745	365	if (so->so_proto->pr_getlock != NULL) {
91447636	366	mutex_held = (*so->so_proto->pr_getlock)(so, 0);
0a7de745	367	} else {
91447636	368	mutex_held = so->so_proto->pr_domain->dom_mtx;
0a7de745	369	}
5ba3f43e	370	LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
1c79356b	371
0a7de745	372	if (rp == 0) {
1c79356b	373	return EINVAL;
0a7de745	374	}
1c79356b A	375	socantsendmore(so);
	376	return 0;
	377	}
	378
	379	static int
	380	raw_usockaddr(struct socket so, struct sockaddr *nam)
	381	{
	382	struct rawcb *rp = sotorawcb(so);
	383
0a7de745	384	if (rp == 0) {
1c79356b	385	return EINVAL;
0a7de745 A	386	}
0a7de745 A	387	if (rp->rcb_laddr == 0) {
1c79356b	388	return EINVAL;
0a7de745	389	}
1c79356b A	390	*nam = dup_sockaddr(rp->rcb_laddr, 1);
	391	return 0;
	392	}
	393
	394	struct pr_usrreqs raw_usrreqs = {
0a7de745 A	395	.pru_abort = raw_uabort,
	396	.pru_attach = raw_uattach,
	397	.pru_bind = raw_ubind,
	398	.pru_connect = raw_uconnect,
	399	.pru_detach = raw_udetach,
	400	.pru_disconnect = raw_udisconnect,
	401	.pru_peeraddr = raw_upeeraddr,
	402	.pru_send = raw_usend,
	403	.pru_shutdown = raw_ushutdown,
	404	.pru_sockaddr = raw_usockaddr,
	405	.pru_sosend = sosend,
	406	.pru_soreceive = soreceive,
1c79356b	407	};