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

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_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.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 <net/if.h>
#include <net/route.h>

int soo_read __P((struct file *fp, struct uio *uio, 
		struct ucred *cred, int flags, struct proc *p));
int soo_write __P((struct file *fp, struct uio *uio, 
		struct ucred *cred, int flags, struct proc *p));
int soo_close __P((struct file *fp, struct proc *p));

int soo_select __P((struct file *fp, int which, void * wql, struct proc *p));

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

/* ARGSUSED */
int
soo_read(fp, uio, cred, flags, p)
	struct file *fp;
	struct uio *uio;
	struct ucred *cred;
	int flags;
	struct proc *p;
{
	struct socket *so;
	struct kextcb *kp;
	int stat;
	int (*fsoreceive) __P((struct socket *so, 
			       struct sockaddr **paddr,
			       struct uio *uio, struct mbuf **mp0,
			       struct mbuf **controlp, int *flagsp));


	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);

        if ((so = (struct socket *)fp->f_data) == NULL) {
                /* This is not a valid open file descriptor */
                thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
                return (EBADF);
        }

	fsoreceive = so->so_proto->pr_usrreqs->pru_soreceive;
	if (fsoreceive != soreceive)
	{	kp = sotokextcb(so);
		while (kp)
		{	if (kp->e_soif && kp->e_soif->sf_soreceive)
				(*kp->e_soif->sf_soreceive)(so, 0, &uio,
							    0, 0, 0, kp);
			kp = kp->e_next;
		}

	}
	
	stat = (*fsoreceive)(so, 0, uio, 0, 0, 0);
	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	return stat;
}

/* ARGSUSED */
int
soo_write(fp, uio, cred, flags, p)
	struct file *fp;
	struct uio *uio;
	struct ucred *cred;
	int flags;
	struct proc *p;
{
	struct socket *so;
	int	(*fsosend) __P((struct socket *so, struct sockaddr *addr,
				struct uio *uio, struct mbuf *top,
				struct mbuf *control, int flags));
	struct kextcb *kp;
	int           stat;

	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);

        if ((so = (struct socket *)fp->f_data) == NULL) {
                /* This is not a valid open file descriptor */
                thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
                return (EBADF);
        }

	fsosend = so->so_proto->pr_usrreqs->pru_sosend;
	if (fsosend != sosend)
	{	kp = sotokextcb(so);
		while (kp)
		{	if (kp->e_soif && kp->e_soif->sf_sosend)
			(*kp->e_soif->sf_sosend)(so, 0, &uio,
						 0, 0, 0, kp);
			kp = kp->e_next;
		}
	}

	stat = (*fsosend)(so, 0, uio, 0, 0, 0);
	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);

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

        return stat;
}

int
soo_ioctl(fp, cmd, data, p)
	struct file *fp;
	u_long cmd;
	register caddr_t data;
	struct proc *p;
{
	register struct socket *so;
	struct sockopt sopt;
	struct kextcb *kp;
	int    error = 0;

	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);

	if ((so = (struct socket *)fp->f_data) == NULL) {
		/* This is not a valid open file descriptor */
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (EBADF);
	}

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

	while (kp)
	{	if (kp->e_soif && kp->e_soif->sf_socontrol)
			(*kp->e_soif->sf_socontrol)(so, &sopt, kp);
		kp = kp->e_next;
	}

	switch (cmd) {

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

		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	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;
		}
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	case FIONREAD:
		*(int *)data = so->so_rcv.sb_cc;
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	case SIOCSPGRP:
		so->so_pgid = *(int *)data;
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	case SIOCGPGRP:
		*(int *)data = so->so_pgid;
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	case SIOCATMARK:
	     *(int *)data = (so->so_state&SS_RCVATMARK) != 0;
		thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		return (0);

	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) {
		  struct file     *cloned_fp;
		  error = getsock(p->p_fd, cloned_fd, &cloned_fp);
		  if (error) {
		       thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
		       return (error);
		  }

		  cloned_so = (struct socket *)cloned_fp->f_data;
	     }

	     /* Always set socket non-blocking for OT */
	     fp->f_flag |= FNONBLOCK;
	     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;
			    thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
			    return (error);
		       }
		  }
		  if (cloned_so->so_rcv.sb_hiwat > 0) {
		       if (sbreserve(&so->so_rcv, cloned_so->so_rcv.sb_hiwat) == 0) {
			    error = ENOBUFS;
			    thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
			    return (error);
		       }
		  }

		  /* 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;

	     thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	     return (error);
        }
	}
	/*
	 * Interface/routing/protocol specific ioctls:
	 * interface and routing ioctls should have a
	 * different entry since a socket's unnecessary
	 */
	if (IOCGROUP(cmd) == 'i')
	     error = ifioctl(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);

	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	return error;
}

int
soo_select(fp, which, wql, p)
	struct file *fp;
	int which;
	void * wql;
	struct proc *p;
{
	register struct socket *so = (struct socket *)fp->f_data;
	register int s = splnet();
	int retnum=0;


	switch (which) {

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


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

	/*
	 * DANGER: by the time we get the network funnel the socket 
	 * may have been closed
	 */
	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
	bzero((caddr_t)ub, sizeof (*ub));
	ub->st_mode = S_IFSOCK;
	stat = (*so->so_proto->pr_usrreqs->pru_sense)(so, ub);
	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	return stat;
}

/* ARGSUSED */
int
soo_close(fp, p)
	struct file *fp;
	struct proc *p;
{
	int error = 0;

	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);

	if (fp->f_data)
	     error = soclose((struct socket *)fp->f_data);

	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);

	fp->f_data = 0;
	return (error);
}
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
de355530 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
de355530 A	12	* This Original Code and all software distributed under the License are
de355530 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
de355530 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1982, 1986, 1990, 1993
	24	* The Regents of the University of California. All rights reserved.
	25	*
	26	* Redistribution and use in source and binary forms, with or without
	27	* modification, are permitted provided that the following conditions
	28	* are met:
	29	* 1. Redistributions of source code must retain the above copyright
	30	* notice, this list of conditions and the following disclaimer.
	31	* 2. Redistributions in binary form must reproduce the above copyright
	32	* notice, this list of conditions and the following disclaimer in the
	33	* documentation and/or other materials provided with the distribution.
	34	* 3. All advertising materials mentioning features or use of this software
	35	* must display the following acknowledgement:
	36	* This product includes software developed by the University of
	37	* California, Berkeley and its contributors.
	38	* 4. Neither the name of the University nor the names of its contributors
	39	* may be used to endorse or promote products derived from this software
	40	* without specific prior written permission.
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* @(#)sys_socket.c 8.1 (Berkeley) 6/10/93
	55	*/
	56
	57	#include <sys/param.h>
	58	#include <sys/systm.h>
	59	#include <sys/file.h>
	60	#include <sys/protosw.h>
	61	#include <sys/socket.h>
	62	#include <sys/socketvar.h>
	63	#include <sys/filio.h> /* XXX */
	64	#include <sys/sockio.h>
	65	#include <sys/stat.h>
	66	#include <sys/uio.h>
	67	#include <sys/filedesc.h>
	68
	69	#include <net/if.h>
	70	#include <net/route.h>
	71
	72	int soo_read __P((struct file fp, struct uio uio,
9bccf70c	73	struct ucred cred, int flags, struct proc p));
1c79356b	74	int soo_write __P((struct file fp, struct uio uio,
9bccf70c	75	struct ucred cred, int flags, struct proc p));
1c79356b A	76	int soo_close __P((struct file fp, struct proc p));
1c79356b A	77
0b4e3aa0	78	int soo_select __P((struct file fp, int which, void wql, struct proc *p));
1c79356b A	79
	80	struct fileops socketops =
	81	{ soo_read, soo_write, soo_ioctl, soo_select, soo_close };
	82
	83	/* ARGSUSED */
	84	int
9bccf70c	85	soo_read(fp, uio, cred, flags, p)
1c79356b A	86	struct file *fp;
	87	struct uio *uio;
	88	struct ucred *cred;
9bccf70c A	89	int flags;
9bccf70c A	90	struct proc *p;
1c79356b	91	{
9bccf70c	92	struct socket *so;
1c79356b A	93	struct kextcb *kp;
	94	int stat;
	95	int (fsoreceive) __P((struct socket so,
	96	struct sockaddr **paddr,
	97	struct uio uio, struct mbuf *mp0,
	98	struct mbuf *controlp, int flagsp));
	99
0b4e3aa0	100
1c79356b	101	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
0b4e3aa0	102
9bccf70c A	103	if ((so = (struct socket *)fp->f_data) == NULL) {
	104	/* This is not a valid open file descriptor */
	105	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	106	return (EBADF);
	107	}
	108
1c79356b A	109	fsoreceive = so->so_proto->pr_usrreqs->pru_soreceive;
	110	if (fsoreceive != soreceive)
	111	{ kp = sotokextcb(so);
	112	while (kp)
	113	{ if (kp->e_soif && kp->e_soif->sf_soreceive)
	114	(*kp->e_soif->sf_soreceive)(so, 0, &uio,
	115	0, 0, 0, kp);
	116	kp = kp->e_next;
	117	}
	118
	119	}
	120
	121	stat = (*fsoreceive)(so, 0, uio, 0, 0, 0);
	122	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	123	return stat;
	124	}
	125
	126	/* ARGSUSED */
	127	int
9bccf70c	128	soo_write(fp, uio, cred, flags, p)
1c79356b A	129	struct file *fp;
	130	struct uio *uio;
	131	struct ucred *cred;
9bccf70c A	132	int flags;
9bccf70c A	133	struct proc *p;
1c79356b	134	{
9bccf70c	135	struct socket *so;
1c79356b A	136	int (fsosend) __P((struct socket so, struct sockaddr *addr,
	137	struct uio uio, struct mbuf top,
	138	struct mbuf *control, int flags));
	139	struct kextcb *kp;
	140	int stat;
	141
	142	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
9bccf70c A	143
	144	if ((so = (struct socket *)fp->f_data) == NULL) {
	145	/* This is not a valid open file descriptor */
	146	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	147	return (EBADF);
	148	}
	149
1c79356b A	150	fsosend = so->so_proto->pr_usrreqs->pru_sosend;
	151	if (fsosend != sosend)
	152	{ kp = sotokextcb(so);
	153	while (kp)
	154	{ if (kp->e_soif && kp->e_soif->sf_sosend)
	155	(*kp->e_soif->sf_sosend)(so, 0, &uio,
	156	0, 0, 0, kp);
	157	kp = kp->e_next;
	158	}
	159	}
	160
	161	stat = (*fsosend)(so, 0, uio, 0, 0, 0);
	162	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
9bccf70c A	163
	164	/* Generation of SIGPIPE can be controlled per socket */
	165	if (stat == EPIPE && uio->uio_procp && !(so->so_flags & SOF_NOSIGPIPE))
	166	psignal(uio->uio_procp, SIGPIPE);
	167
	168	return stat;
1c79356b A	169	}
	170
	171	int
	172	soo_ioctl(fp, cmd, data, p)
	173	struct file *fp;
	174	u_long cmd;
	175	register caddr_t data;
	176	struct proc *p;
	177	{
9bccf70c	178	register struct socket *so;
1c79356b A	179	struct sockopt sopt;
	180	struct kextcb *kp;
	181	int error = 0;
1c79356b A	182
	183	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
	184
9bccf70c A	185	if ((so = (struct socket *)fp->f_data) == NULL) {
	186	/* This is not a valid open file descriptor */
	187	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	188	return (EBADF);
	189	}
	190
	191	kp = sotokextcb(so);
	192	sopt.sopt_level = cmd;
	193	sopt.sopt_name = (int)data;
	194	sopt.sopt_p = p;
	195
1c79356b A	196	while (kp)
	197	{ if (kp->e_soif && kp->e_soif->sf_socontrol)
	198	(*kp->e_soif->sf_socontrol)(so, &sopt, kp);
	199	kp = kp->e_next;
	200	}
	201
	202	switch (cmd) {
	203
	204	case FIONBIO:
	205	if ((int )data)
	206	so->so_state \|= SS_NBIO;
	207	else
	208	so->so_state &= ~SS_NBIO;
	209
	210	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	211	return (0);
	212
	213	case FIOASYNC:
	214	if ((int )data) {
	215	so->so_state \|= SS_ASYNC;
	216	so->so_rcv.sb_flags \|= SB_ASYNC;
	217	so->so_snd.sb_flags \|= SB_ASYNC;
	218	} else {
	219	so->so_state &= ~SS_ASYNC;
	220	so->so_rcv.sb_flags &= ~SB_ASYNC;
	221	so->so_snd.sb_flags &= ~SB_ASYNC;
	222	}
	223	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	224	return (0);
	225
	226	case FIONREAD:
	227	(int )data = so->so_rcv.sb_cc;
	228	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	229	return (0);
	230
	231	case SIOCSPGRP:
	232	so->so_pgid = (int )data;
	233	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	234	return (0);
	235
	236	case SIOCGPGRP:
	237	(int )data = so->so_pgid;
	238	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	239	return (0);
	240
	241	case SIOCATMARK:
	242	(int )data = (so->so_state&SS_RCVATMARK) != 0;
	243	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	244	return (0);
	245
	246	case SIOCSETOT: {
	247	/*
	248	* Set socket level options here and then call protocol
	249	* specific routine.
	250	*/
	251	struct socket *cloned_so = NULL;
	252	int cloned_fd = (int )data;
	253
	254	/* let's make sure it's either -1 or a valid file descriptor */
	255	if (cloned_fd != -1) {
	256	struct file *cloned_fp;
	257	error = getsock(p->p_fd, cloned_fd, &cloned_fp);
	258	if (error) {
	259	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
260	return (error);
261	}
262
263	cloned_so = (struct socket *)cloned_fp->f_data;
264	}
265
266	/* Always set socket non-blocking for OT */
267	fp->f_flag \|= FNONBLOCK;
268	so->so_state \|= SS_NBIO;
269	so->so_options \|= SO_DONTTRUNC \| SO_WANTMORE;
9bccf70c	270	so->so_flags \|= SOF_NOSIGPIPE;
1c79356b A	271
	272	if (cloned_so && so != cloned_so) {
	273	/* Flags options */
	274	so->so_options \|= cloned_so->so_options & ~SO_ACCEPTCONN;
	275
	276	/* SO_LINGER */
	277	if (so->so_options & SO_LINGER)
	278	so->so_linger = cloned_so->so_linger;
	279
	280	/* SO_SNDBUF, SO_RCVBUF */
	281	if (cloned_so->so_snd.sb_hiwat > 0) {
	282	if (sbreserve(&so->so_snd, cloned_so->so_snd.sb_hiwat) == 0) {
	283	error = ENOBUFS;
	284	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	285	return (error);
	286	}
	287	}
	288	if (cloned_so->so_rcv.sb_hiwat > 0) {
	289	if (sbreserve(&so->so_rcv, cloned_so->so_rcv.sb_hiwat) == 0) {
	290	error = ENOBUFS;
	291	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	292	return (error);
	293	}
	294	}
	295
	296	/* SO_SNDLOWAT, SO_RCVLOWAT */
	297	so->so_snd.sb_lowat =
	298	(cloned_so->so_snd.sb_lowat > so->so_snd.sb_hiwat) ?
	299	so->so_snd.sb_hiwat : cloned_so->so_snd.sb_lowat;
	300	so->so_rcv.sb_lowat =
	301	(cloned_so->so_rcv.sb_lowat > so->so_rcv.sb_hiwat) ?
	302	so->so_rcv.sb_hiwat : cloned_so->so_rcv.sb_lowat;
	303
	304	/* SO_SNDTIMEO, SO_RCVTIMEO */
	305	so->so_snd.sb_timeo = cloned_so->so_snd.sb_timeo;
	306	so->so_rcv.sb_timeo = cloned_so->so_rcv.sb_timeo;
	307	}
	308
	309	error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
	310	/* Just ignore protocols that do not understand it */
	311	if (error == EOPNOTSUPP)
	312	error = 0;
	313
	314	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	315	return (error);
	316	}
	317	}
	318	/*
	319	* Interface/routing/protocol specific ioctls:
	320	* interface and routing ioctls should have a
	321	* different entry since a socket's unnecessary
	322	*/
	323	if (IOCGROUP(cmd) == 'i')
	324	error = ifioctl(so, cmd, data, p);
	325	else
	326	if (IOCGROUP(cmd) == 'r')
	327	error = rtioctl(cmd, data, p);
	328	else
	329	error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
	330
	331	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	332	return error;
	333	}
	334
335	int
0b4e3aa0	336	soo_select(fp, which, wql, p)
1c79356b A	337	struct file *fp;
1c79356b A	338	int which;
0b4e3aa0	339	void * wql;
1c79356b A	340	struct proc *p;
	341	{
	342	register struct socket so = (struct socket )fp->f_data;
	343	register int s = splnet();
	344	int retnum=0;
	345
1c79356b A	346
	347	switch (which) {
	348
	349	case FREAD:
0b4e3aa0	350	so->so_rcv.sb_flags \|= SB_SEL;
1c79356b A	351	if (soreadable(so)) {
	352	splx(s);
	353	retnum = 1;
0b4e3aa0	354	so->so_rcv.sb_flags &= ~SB_SEL;
1c79356b A	355	goto done;
1c79356b A	356	}
0b4e3aa0	357	selrecord(p, &so->so_rcv.sb_sel, wql);
1c79356b A	358	break;
	359
	360	case FWRITE:
0b4e3aa0	361	so->so_snd.sb_flags \|= SB_SEL;
1c79356b A	362	if (sowriteable(so)) {
	363	splx(s);
	364	retnum = 1;
0b4e3aa0	365	so->so_snd.sb_flags &= ~SB_SEL;
1c79356b A	366	goto done;
1c79356b A	367	}
0b4e3aa0	368	selrecord(p, &so->so_snd.sb_sel, wql);
1c79356b A	369	break;
	370
	371	case 0:
0b4e3aa0	372	so->so_rcv.sb_flags \|= SB_SEL;
1c79356b A	373	if (so->so_oobmark \|\| (so->so_state & SS_RCVATMARK)) {
	374	splx(s);
	375	retnum = 1;
0b4e3aa0	376	so->so_rcv.sb_flags &= ~SB_SEL;
1c79356b A	377	goto done;
1c79356b A	378	}
0b4e3aa0	379	selrecord(p, &so->so_rcv.sb_sel, wql);
1c79356b A	380	break;
	381	}
	382	splx(s);
	383	done:
1c79356b A	384	return (retnum);
	385	}
	386
	387
	388	int
	389	soo_stat(so, ub)
	390	register struct socket *so;
	391	register struct stat *ub;
	392	{
9bccf70c	393	int stat;
1c79356b	394
9bccf70c A	395	/*
	396	* DANGER: by the time we get the network funnel the socket
	397	* may have been closed
	398	*/
1c79356b A	399	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
	400	bzero((caddr_t)ub, sizeof (*ub));
	401	ub->st_mode = S_IFSOCK;
	402	stat = (*so->so_proto->pr_usrreqs->pru_sense)(so, ub);
	403	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
	404	return stat;
	405	}
	406
	407	/* ARGSUSED */
	408	int
	409	soo_close(fp, p)
	410	struct file *fp;
	411	struct proc *p;
	412	{
	413	int error = 0;
	414
9bccf70c A	415	thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
	416
	417	if (fp->f_data)
1c79356b	418	error = soclose((struct socket *)fp->f_data);
9bccf70c A	419
9bccf70c A	420	thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1c79356b A	421
	422	fp->f_data = 0;
	423	return (error);
	424	}