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/* $OpenBSD: svr4_net.c,v 1.11 2001/05/14 12:38:48 art Exp $ */
/* $NetBSD: svr4_net.c,v 1.12 1996/09/07 12:40:51 mycroft Exp $ */
/*
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution ast use in source ast binary forms, with or without
* modification, are permitted provided that the following costitions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of costitions ast the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of costitions ast the following disclaimer in the
* documentation ast/or other materials provided with the distribution.
* 3. The name of the author may not be used to estorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Emulate /dev/{udp,tcp,...}
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_signal.h>
#include <compat/svr4/svr4_syscallargs.h>
#include <compat/svr4/svr4_ioctl.h>
#include <compat/svr4/svr4_stropts.h>
#include <compat/svr4/svr4_socket.h>
/*
* Device minor numbers
*/
enum {
dev_arp = 26,
dev_icmp = 27,
dev_ip = 28,
dev_tcp = 35,
dev_udp = 36,
dev_rawip = 37,
dev_unix_dgram = 38,
dev_unix_stream = 39,
dev_unix_ord_stream = 40
};
int svr4_netattach __P((int));
static int svr4_soo_close __P((struct file *fp, struct proc *p));
static struct fileops svr4_netops = {
soo_read, soo_write, soo_ioctl, soo_select, soo_kqfilter,
soo_stat, svr4_soo_close
};
/*
* Used by new config, but we don't need it.
*/
int
svr4_netattach(n)
int n;
{
return 0;
}
int
svr4_netopen(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
int type, protocol;
int fd;
struct file *fp;
struct socket *so;
int error;
int family;
DPRINTF(("netopen("));
if (p->p_dupfd >= 0)
return ENODEV;
switch (minor(dev)) {
case dev_udp:
family = AF_INET;
type = SOCK_DGRAM;
protocol = IPPROTO_UDP;
DPRINTF(("udp, "));
break;
case dev_tcp:
family = AF_INET;
type = SOCK_STREAM;
protocol = IPPROTO_TCP;
DPRINTF(("tcp, "));
break;
case dev_ip:
case dev_rawip:
family = AF_INET;
type = SOCK_RAW;
protocol = IPPROTO_IP;
DPRINTF(("ip, "));
break;
case dev_icmp:
family = AF_INET;
type = SOCK_RAW;
protocol = IPPROTO_ICMP;
DPRINTF(("icmp, "));
break;
case dev_unix_dgram:
family = AF_UNIX;
type = SOCK_DGRAM;
protocol = 0;
DPRINTF(("unix-dgram, "));
break;
case dev_unix_stream:
case dev_unix_ord_stream:
family = AF_UNIX;
type = SOCK_STREAM;
protocol = 0;
DPRINTF(("unix-stream, "));
break;
default:
DPRINTF(("%d);\n", minor(dev)));
return EOPNOTSUPP;
}
if ((error = falloc(p, &fp, &fd)) != 0)
return (error);
if ((error = socreate(family, &so, type, protocol)) != 0) {
DPRINTF(("socreate error %d\n", error));
fdremove(p->p_fd, fd);
ffree(fp);
return error;
}
fp->f_flag = FREAD|FWRITE;
fp->f_type = DTYPE_SOCKET;
fp->f_ops = &svr4_netops;
fp->f_data = (caddr_t)so;
(void) svr4_stream_get(fp);
DPRINTF(("ok);\n"));
p->p_dupfd = fd;
return ENXIO;
}
static int
svr4_soo_close(fp, p)
struct file *fp;
struct proc *p;
{
struct socket *so = (struct socket *) fp->f_data;
svr4_delete_socket(p, fp);
free(so->so_internal, M_NETADDR);
return soo_close(fp, p);
}
struct svr4_strm *
svr4_stream_get(fp)
struct file *fp;
{
struct socket *so;
struct svr4_strm *st;
if (fp == NULL || fp->f_type != DTYPE_SOCKET)
return NULL;
so = (struct socket *) fp->f_data;
if (so->so_internal)
return so->so_internal;
/* Allocate a new one. */
fp->f_ops = &svr4_netops;
st = malloc(sizeof(struct svr4_strm), M_NETADDR, M_WAITOK);
st->s_family = so->so_proto->pr_domain->dom_family;
st->s_cmd = ~0;
st->s_afd = -1;
so->so_internal = st;
return st;
}
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