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

/*
 * Copyright (c) 2000-2002 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) 1982, 1986, 1990, 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.
 *
 *	@(#)sys_socket.c	8.1 (Berkeley) 6/10/93
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/file_internal.h>
#include <sys/event.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/filio.h>			/* XXX */
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/filedesc.h>
#include <sys/kauth.h>
#include <sys/signalvar.h>

#include <net/if.h>
#include <net/route.h>

/*
 * File operations on sockets.
 */
int	soo_read(struct fileproc *fp, struct uio *uio, kauth_cred_t cred,
		int flags, struct proc *p);
int	soo_write(struct fileproc *fp, struct uio *uio, kauth_cred_t cred,
		int flags, struct proc *p);
int soo_close(struct fileglob *fp, struct proc *p);
int	soo_ioctl(struct fileproc *fp, u_long cmd, caddr_t data, struct proc *p);
int	soo_stat(struct socket *so, struct stat *ub);
int	soo_select(struct fileproc *fp, int which, void * wql, struct proc *p);
int     soo_kqfilter(struct fileproc *fp, struct knote *kn, struct proc *p);
int	soo_drain(struct fileproc *fp, struct proc *p);

struct	fileops socketops =
    { soo_read, soo_write, soo_ioctl, soo_select, soo_close, soo_kqfilter, soo_drain };

/* ARGSUSED */
int
soo_read(
	struct fileproc *fp,
	struct uio *uio,
	__unused kauth_cred_t cred,
	__unused int flags,
	__unused struct proc *p)
{
	struct socket *so;
	int stat;
	int (*fsoreceive)(struct socket *so2, 
			       struct sockaddr **paddr,
			       struct uio *uio2, struct mbuf **mp0,
			       struct mbuf **controlp, int *flagsp);


        if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
                /* This is not a valid open file descriptor */
		return(EBADF);
        }
//###LD will have to change
	fsoreceive = so->so_proto->pr_usrreqs->pru_soreceive;
	
	stat = (*fsoreceive)(so, 0, uio, 0, 0, 0);
	return stat;
}

/* ARGSUSED */
int
soo_write(
	struct fileproc *fp,
	struct uio *uio,
	__unused kauth_cred_t cred,
	__unused int flags,
	struct proc *procp)
{
	struct socket *so;
	int	(*fsosend)(struct socket *so2, struct sockaddr *addr,
				struct uio *uio2, struct mbuf *top,
				struct mbuf *control, int flags2);
	int           stat;

	if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
		/* This is not a valid open file descriptor */
		return (EBADF);
	}

	fsosend = so->so_proto->pr_usrreqs->pru_sosend;

	stat = (*fsosend)(so, 0, uio, 0, 0, 0);

	/* Generation of SIGPIPE can be controlled per socket */
	if (stat == EPIPE && procp && !(so->so_flags & SOF_NOSIGPIPE))
		psignal(procp, SIGPIPE);

	return stat;
}

__private_extern__ int
soioctl(
	struct socket *so,
	u_long cmd,
	caddr_t data,
	struct proc *p)
{
	struct sockopt sopt;
	int    error = 0;
	int dropsockref = -1;


	socket_lock(so, 1);

	sopt.sopt_level = cmd;
	sopt.sopt_name = (int)data;
	sopt.sopt_p = p;

	switch (cmd) {

	case FIONBIO:
		if (*(int *)data)
			so->so_state |= SS_NBIO;
		else
			so->so_state &= ~SS_NBIO;

		goto out;

	case FIOASYNC:
		if (*(int *)data) {
			so->so_state |= SS_ASYNC;
			so->so_rcv.sb_flags |= SB_ASYNC;
			so->so_snd.sb_flags |= SB_ASYNC;
		} else {
			so->so_state &= ~SS_ASYNC;
			so->so_rcv.sb_flags &= ~SB_ASYNC;
			so->so_snd.sb_flags &= ~SB_ASYNC;
		}
		goto out;

	case FIONREAD:
		*(int *)data = so->so_rcv.sb_cc;
		goto out;

	case SIOCSPGRP:
		so->so_pgid = *(int *)data;
		goto out;

	case SIOCGPGRP:
		*(int *)data = so->so_pgid;
		goto out;

	case SIOCATMARK:
	     *(int *)data = (so->so_state&SS_RCVATMARK) != 0;
		goto out;

	case SIOCSETOT: {
	     /*
	      * Set socket level options here and then call protocol
	      * specific routine.
	      */
	     struct socket	*cloned_so = NULL;
	     int				cloned_fd = *(int *)data;

	     /* let's make sure it's either -1 or a valid file descriptor */
	     if (cloned_fd != -1) {
		  error = file_socket(cloned_fd, &cloned_so);
		  if (error) {
			goto out;
		  }
		 dropsockref = cloned_fd;
	     }

	     /* Always set socket non-blocking for OT */
	     so->so_state |= SS_NBIO;
	     so->so_options |= SO_DONTTRUNC | SO_WANTMORE;
          so->so_flags |= SOF_NOSIGPIPE;

	     if (cloned_so && so != cloned_so) {
		  /* Flags options */
		  so->so_options |= cloned_so->so_options & ~SO_ACCEPTCONN;

            /* SO_LINGER */
            if (so->so_options & SO_LINGER)
                so->so_linger = cloned_so->so_linger;

            /* SO_SNDBUF, SO_RCVBUF */
		  if (cloned_so->so_snd.sb_hiwat > 0) {
		       if (sbreserve(&so->so_snd, cloned_so->so_snd.sb_hiwat) == 0) {
			    error = ENOBUFS;
			    goto out;
		       }
		  }
		  if (cloned_so->so_rcv.sb_hiwat > 0) {
		       if (sbreserve(&so->so_rcv, cloned_so->so_rcv.sb_hiwat) == 0) {
			    error = ENOBUFS;
			    goto out;
		       }
		  }

		  /* SO_SNDLOWAT, SO_RCVLOWAT */
		  so->so_snd.sb_lowat =
		       (cloned_so->so_snd.sb_lowat > so->so_snd.sb_hiwat) ?
		       so->so_snd.sb_hiwat : cloned_so->so_snd.sb_lowat;
		  so->so_rcv.sb_lowat =
		       (cloned_so->so_rcv.sb_lowat > so->so_rcv.sb_hiwat) ?
		       so->so_rcv.sb_hiwat : cloned_so->so_rcv.sb_lowat;

            	  /* SO_SNDTIMEO, SO_RCVTIMEO */
		  so->so_snd.sb_timeo = cloned_so->so_snd.sb_timeo;
		  so->so_rcv.sb_timeo = cloned_so->so_rcv.sb_timeo;
	     }

	     error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
	     /* Just ignore protocols that do not understand it */
	     if (error == EOPNOTSUPP)
		  error = 0;

		goto out;
        }
	}
	/*
	 * Interface/routing/protocol specific ioctls:
	 * interface and routing ioctls should have a
	 * different entry since a socket's unnecessary
	 */
	if (IOCGROUP(cmd) == 'i')
	     error = ifioctllocked(so, cmd, data, p);
	else 
	     if (IOCGROUP(cmd) == 'r')
		  error = rtioctl(cmd, data, p);
	     else
		  error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);

out:
	if (dropsockref != -1)
		file_drop(dropsockref);
	socket_unlock(so, 1);

	return error;
}

int
soo_ioctl(fp, cmd, data, p)
	struct fileproc *fp;
	u_long cmd;
	register caddr_t data;
	struct proc *p;
{
	register struct socket *so;
	int error;


	if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
		/* This is not a valid open file descriptor */
		return (EBADF);
	}
	
	error = soioctl(so, cmd, data, p);
	
	if (error == 0 && cmd == SIOCSETOT)
		fp->f_fglob->fg_flag |= FNONBLOCK;

	return error;
}

int
soo_select(fp, which, wql, p)
	struct fileproc *fp;
	int which;
	void * wql;
	struct proc *p;
{
	register struct socket *so = (struct socket *)fp->f_fglob->fg_data;
	int retnum=0;

	if (so == NULL || so == (struct socket*)-1)
		return (0);

	socket_lock(so, 1);
	switch (which) {

	case FREAD:
		so->so_rcv.sb_flags |= SB_SEL;
		if (soreadable(so)) {
			retnum = 1;
			so->so_rcv.sb_flags &= ~SB_SEL;
			goto done;
		}
		selrecord(p, &so->so_rcv.sb_sel, wql);
		break;

	case FWRITE:
		so->so_snd.sb_flags |= SB_SEL;
		if (sowriteable(so)) {
			retnum = 1;
			so->so_snd.sb_flags &= ~SB_SEL;
			goto done;
		}
		selrecord(p, &so->so_snd.sb_sel, wql);
		break;

	case 0:
		so->so_rcv.sb_flags |= SB_SEL;
		if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) {
			retnum = 1;
			so->so_rcv.sb_flags &= ~SB_SEL;
			goto done;
		}
		selrecord(p, &so->so_rcv.sb_sel, wql);
		break;
	}
	
done:
	socket_unlock(so, 1);
	return (retnum);
}


int
soo_stat(so, ub)
	register struct socket *so;
	register struct stat *ub;
{
	int stat;

	bzero((caddr_t)ub, sizeof (*ub));
	socket_lock(so, 1);
	ub->st_mode = S_IFSOCK;
	stat = (*so->so_proto->pr_usrreqs->pru_sense)(so, ub);
	socket_unlock(so, 1);
	return stat;
}

/* ARGSUSED */
int
soo_close(struct fileglob *fg, __unused proc_t p)
{
	int error = 0;
	struct socket *sp;

	sp = (struct socket *)fg->fg_data;
	fg->fg_data = NULL;


	if (sp)
	     error = soclose(sp);


	return (error);
}

int
soo_drain(struct fileproc *fp, __unused struct proc *p)
{
	int error = 0;
	struct socket *so = (struct socket *)fp->f_fglob->fg_data;

	if (so) {
		socket_lock(so, 1);
		so->so_state |= SS_DRAINING;

		wakeup((caddr_t)&so->so_timeo);
		sorwakeup(so);
		sowwakeup(so);
	
		socket_unlock(so, 1);
	}

	return error;
}
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000-2002 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) 1982, 1986, 1990, 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	* @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
	61	*/
	62
	63	#include <sys/param.h>
	64	#include <sys/systm.h>
91447636	65	#include <sys/file_internal.h>
55e303ae	66	#include <sys/event.h>
1c79356b A	67	#include <sys/protosw.h>
	68	#include <sys/socket.h>
	69	#include <sys/socketvar.h>
	70	#include <sys/filio.h> /* XXX */
	71	#include <sys/sockio.h>
	72	#include <sys/stat.h>
	73	#include <sys/uio.h>
	74	#include <sys/filedesc.h>
91447636 A	75	#include <sys/kauth.h>
91447636 A	76	#include <sys/signalvar.h>
1c79356b A	77
	78	#include <net/if.h>
	79	#include <net/route.h>
	80
91447636 A	81	/*
	82	* File operations on sockets.
	83	*/
	84	int soo_read(struct fileproc fp, struct uio uio, kauth_cred_t cred,
	85	int flags, struct proc *p);
	86	int soo_write(struct fileproc fp, struct uio uio, kauth_cred_t cred,
	87	int flags, struct proc *p);
	88	int soo_close(struct fileglob fp, struct proc p);
	89	int soo_ioctl(struct fileproc fp, u_long cmd, caddr_t data, struct proc p);
	90	int soo_stat(struct socket so, struct stat ub);
	91	int soo_select(struct fileproc fp, int which, void wql, struct proc *p);
	92	int soo_kqfilter(struct fileproc fp, struct knote kn, struct proc *p);
	93	int soo_drain(struct fileproc fp, struct proc p);
55e303ae	94
1c79356b	95	struct fileops socketops =
91447636	96	{ soo_read, soo_write, soo_ioctl, soo_select, soo_close, soo_kqfilter, soo_drain };
1c79356b A	97
	98	/* ARGSUSED */
	99	int
91447636 A	100	soo_read(
	101	struct fileproc *fp,
	102	struct uio *uio,
	103	__unused kauth_cred_t cred,
	104	__unused int flags,
	105	__unused struct proc *p)
1c79356b	106	{
9bccf70c	107	struct socket *so;
1c79356b	108	int stat;
91447636	109	int (fsoreceive)(struct socket so2,
1c79356b	110	struct sockaddr **paddr,
91447636 A	111	struct uio uio2, struct mbuf *mp0,
91447636 A	112	struct mbuf *controlp, int flagsp);
1c79356b	113
0b4e3aa0	114
0b4e3aa0	115
91447636	116	if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
9bccf70c	117	/* This is not a valid open file descriptor */
91447636	118	return(EBADF);
9bccf70c	119	}
91447636	120	//###LD will have to change
1c79356b	121	fsoreceive = so->so_proto->pr_usrreqs->pru_soreceive;
1c79356b A	122
1c79356b A	123	stat = (*fsoreceive)(so, 0, uio, 0, 0, 0);
1c79356b A	124	return stat;
	125	}
	126
	127	/* ARGSUSED */
	128	int
91447636 A	129	soo_write(
	130	struct fileproc *fp,
	131	struct uio *uio,
	132	__unused kauth_cred_t cred,
	133	__unused int flags,
	134	struct proc *procp)
1c79356b	135	{
9bccf70c	136	struct socket *so;
91447636 A	137	int (fsosend)(struct socket so2, struct sockaddr *addr,
	138	struct uio uio2, struct mbuf top,
	139	struct mbuf *control, int flags2);
1c79356b A	140	int stat;
1c79356b A	141
91447636 A	142	if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
	143	/* This is not a valid open file descriptor */
	144	return (EBADF);
	145	}
9bccf70c	146
1c79356b	147	fsosend = so->so_proto->pr_usrreqs->pru_sosend;
1c79356b A	148
1c79356b A	149	stat = (*fsosend)(so, 0, uio, 0, 0, 0);
9bccf70c	150
91447636 A	151	/* Generation of SIGPIPE can be controlled per socket */
	152	if (stat == EPIPE && procp && !(so->so_flags & SOF_NOSIGPIPE))
	153	psignal(procp, SIGPIPE);
9bccf70c	154
91447636	155	return stat;
1c79356b A	156	}
1c79356b A	157
91447636 A	158	__private_extern__ int
	159	soioctl(
	160	struct socket *so,
	161	u_long cmd,
	162	caddr_t data,
	163	struct proc *p)
1c79356b	164	{
1c79356b	165	struct sockopt sopt;
1c79356b	166	int error = 0;
91447636	167	int dropsockref = -1;
1c79356b	168
9bccf70c	169
91447636	170	socket_lock(so, 1);
9bccf70c	171
91447636 A	172	sopt.sopt_level = cmd;
	173	sopt.sopt_name = (int)data;
	174	sopt.sopt_p = p;
1c79356b A	175
	176	switch (cmd) {
	177
	178	case FIONBIO:
	179	if ((int )data)
	180	so->so_state \|= SS_NBIO;
	181	else
	182	so->so_state &= ~SS_NBIO;
	183
91447636	184	goto out;
1c79356b A	185
	186	case FIOASYNC:
	187	if ((int )data) {
	188	so->so_state \|= SS_ASYNC;
	189	so->so_rcv.sb_flags \|= SB_ASYNC;
	190	so->so_snd.sb_flags \|= SB_ASYNC;
	191	} else {
	192	so->so_state &= ~SS_ASYNC;
	193	so->so_rcv.sb_flags &= ~SB_ASYNC;
	194	so->so_snd.sb_flags &= ~SB_ASYNC;
	195	}
91447636	196	goto out;
1c79356b A	197
	198	case FIONREAD:
	199	(int )data = so->so_rcv.sb_cc;
91447636	200	goto out;
1c79356b A	201
	202	case SIOCSPGRP:
	203	so->so_pgid = (int )data;
91447636	204	goto out;
1c79356b A	205
	206	case SIOCGPGRP:
	207	(int )data = so->so_pgid;
91447636	208	goto out;
1c79356b A	209
	210	case SIOCATMARK:
	211	(int )data = (so->so_state&SS_RCVATMARK) != 0;
91447636	212	goto out;
1c79356b A	213
	214	case SIOCSETOT: {
	215	/*
	216	* Set socket level options here and then call protocol
	217	* specific routine.
	218	*/
	219	struct socket *cloned_so = NULL;
	220	int cloned_fd = (int )data;
	221
	222	/* let's make sure it's either -1 or a valid file descriptor */
	223	if (cloned_fd != -1) {
91447636	224	error = file_socket(cloned_fd, &cloned_so);
1c79356b	225	if (error) {
91447636	226	goto out;
1c79356b	227	}
91447636	228	dropsockref = cloned_fd;
1c79356b A	229	}
	230
	231	/* Always set socket non-blocking for OT */
1c79356b A	232	so->so_state \|= SS_NBIO;
1c79356b A	233	so->so_options \|= SO_DONTTRUNC \| SO_WANTMORE;
9bccf70c	234	so->so_flags \|= SOF_NOSIGPIPE;
1c79356b A	235
	236	if (cloned_so && so != cloned_so) {
	237	/* Flags options */
	238	so->so_options \|= cloned_so->so_options & ~SO_ACCEPTCONN;
	239
	240	/* SO_LINGER */
	241	if (so->so_options & SO_LINGER)
	242	so->so_linger = cloned_so->so_linger;
	243
	244	/* SO_SNDBUF, SO_RCVBUF */
	245	if (cloned_so->so_snd.sb_hiwat > 0) {
	246	if (sbreserve(&so->so_snd, cloned_so->so_snd.sb_hiwat) == 0) {
	247	error = ENOBUFS;
91447636	248	goto out;
1c79356b A	249	}
	250	}
	251	if (cloned_so->so_rcv.sb_hiwat > 0) {
	252	if (sbreserve(&so->so_rcv, cloned_so->so_rcv.sb_hiwat) == 0) {
	253	error = ENOBUFS;
91447636	254	goto out;
1c79356b A	255	}
	256	}
	257
	258	/* SO_SNDLOWAT, SO_RCVLOWAT */
	259	so->so_snd.sb_lowat =
	260	(cloned_so->so_snd.sb_lowat > so->so_snd.sb_hiwat) ?
	261	so->so_snd.sb_hiwat : cloned_so->so_snd.sb_lowat;
	262	so->so_rcv.sb_lowat =
	263	(cloned_so->so_rcv.sb_lowat > so->so_rcv.sb_hiwat) ?
	264	so->so_rcv.sb_hiwat : cloned_so->so_rcv.sb_lowat;
	265
91447636	266	/* SO_SNDTIMEO, SO_RCVTIMEO */
1c79356b A	267	so->so_snd.sb_timeo = cloned_so->so_snd.sb_timeo;
	268	so->so_rcv.sb_timeo = cloned_so->so_rcv.sb_timeo;
	269	}
	270
	271	error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
	272	/* Just ignore protocols that do not understand it */
	273	if (error == EOPNOTSUPP)
	274	error = 0;
	275
91447636	276	goto out;
1c79356b A	277	}
	278	}
	279	/*
	280	* Interface/routing/protocol specific ioctls:
	281	* interface and routing ioctls should have a
	282	* different entry since a socket's unnecessary
	283	*/
	284	if (IOCGROUP(cmd) == 'i')
91447636	285	error = ifioctllocked(so, cmd, data, p);
1c79356b A	286	else
	287	if (IOCGROUP(cmd) == 'r')
	288	error = rtioctl(cmd, data, p);
	289	else
	290	error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
	291
91447636 A	292	out:
	293	if (dropsockref != -1)
	294	file_drop(dropsockref);
	295	socket_unlock(so, 1);
	296
	297	return error;
	298	}
	299
	300	int
	301	soo_ioctl(fp, cmd, data, p)
	302	struct fileproc *fp;
	303	u_long cmd;
	304	register caddr_t data;
	305	struct proc *p;
	306	{
	307	register struct socket *so;
	308	int error;
	309
	310
	311	if ((so = (struct socket *)fp->f_fglob->fg_data) == NULL) {
	312	/* This is not a valid open file descriptor */
	313	return (EBADF);
	314	}
	315
	316	error = soioctl(so, cmd, data, p);
	317
	318	if (error == 0 && cmd == SIOCSETOT)
	319	fp->f_fglob->fg_flag \|= FNONBLOCK;
	320
1c79356b A	321	return error;
	322	}
	323
	324	int
0b4e3aa0	325	soo_select(fp, which, wql, p)
91447636	326	struct fileproc *fp;
1c79356b	327	int which;
0b4e3aa0	328	void * wql;
1c79356b A	329	struct proc *p;
1c79356b A	330	{
91447636	331	register struct socket so = (struct socket )fp->f_fglob->fg_data;
1c79356b A	332	int retnum=0;
1c79356b A	333
91447636 A	334	if (so == NULL \|\| so == (struct socket*)-1)
91447636 A	335	return (0);
1c79356b	336
91447636	337	socket_lock(so, 1);
1c79356b A	338	switch (which) {
	339
	340	case FREAD:
0b4e3aa0	341	so->so_rcv.sb_flags \|= SB_SEL;
1c79356b	342	if (soreadable(so)) {
1c79356b	343	retnum = 1;
0b4e3aa0	344	so->so_rcv.sb_flags &= ~SB_SEL;
1c79356b A	345	goto done;
1c79356b A	346	}
0b4e3aa0	347	selrecord(p, &so->so_rcv.sb_sel, wql);
1c79356b A	348	break;
	349
	350	case FWRITE:
0b4e3aa0	351	so->so_snd.sb_flags \|= SB_SEL;
1c79356b	352	if (sowriteable(so)) {
1c79356b	353	retnum = 1;
0b4e3aa0	354	so->so_snd.sb_flags &= ~SB_SEL;
1c79356b A	355	goto done;
1c79356b A	356	}
0b4e3aa0	357	selrecord(p, &so->so_snd.sb_sel, wql);
1c79356b A	358	break;
	359
	360	case 0:
0b4e3aa0	361	so->so_rcv.sb_flags \|= SB_SEL;
1c79356b	362	if (so->so_oobmark \|\| (so->so_state & SS_RCVATMARK)) {
1c79356b	363	retnum = 1;
0b4e3aa0	364	so->so_rcv.sb_flags &= ~SB_SEL;
1c79356b A	365	goto done;
1c79356b A	366	}
0b4e3aa0	367	selrecord(p, &so->so_rcv.sb_sel, wql);
1c79356b A	368	break;
1c79356b A	369	}
91447636	370
1c79356b	371	done:
91447636	372	socket_unlock(so, 1);
1c79356b A	373	return (retnum);
	374	}
	375
	376
	377	int
	378	soo_stat(so, ub)
	379	register struct socket *so;
	380	register struct stat *ub;
	381	{
9bccf70c	382	int stat;
1c79356b	383
1c79356b	384	bzero((caddr_t)ub, sizeof (*ub));
91447636	385	socket_lock(so, 1);
1c79356b A	386	ub->st_mode = S_IFSOCK;
1c79356b A	387	stat = (*so->so_proto->pr_usrreqs->pru_sense)(so, ub);
91447636	388	socket_unlock(so, 1);
1c79356b A	389	return stat;
	390	}
	391
	392	/* ARGSUSED */
	393	int
91447636	394	soo_close(struct fileglob *fg, __unused proc_t p)
1c79356b A	395	{
1c79356b A	396	int error = 0;
55e303ae A	397	struct socket *sp;
55e303ae A	398
91447636 A	399	sp = (struct socket *)fg->fg_data;
91447636 A	400	fg->fg_data = NULL;
1c79356b	401
9bccf70c	402
55e303ae A	403	if (sp)
55e303ae A	404	error = soclose(sp);
9bccf70c	405
1c79356b	406
1c79356b A	407	return (error);
1c79356b A	408	}
91447636 A	409
	410	int
	411	soo_drain(struct fileproc fp, __unused struct proc p)
	412	{
	413	int error = 0;
	414	struct socket so = (struct socket )fp->f_fglob->fg_data;
	415
	416	if (so) {
	417	socket_lock(so, 1);
	418	so->so_state \|= SS_DRAINING;
	419
	420	wakeup((caddr_t)&so->so_timeo);
	421	sorwakeup(so);
	422	sowwakeup(so);
	423
	424	socket_unlock(so, 1);
	425	}
	426
	427	return error;
	428	}
	429