31c81b28f5
1. make fileops const
2. add 2 new negative errno's to `officially' support the cloning hack:
- EDUPFD (used to overload ENODEV)
- EMOVEFD (used to overload ENXIO)
3. Created an fdclone() function to encapsulate the operations needed for
EMOVEFD, and made all cloners use it.
4. Centralize the local noop/badop fileops functions to:
fnullop_fcntl, fnullop_poll, fnullop_kqfilter, fbadop_stat
147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
/* $NetBSD: svr4_32_net.c,v 1.11 2004/11/30 04:25:43 christos Exp $ */
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/*-
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* Copyright (c) 1994 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Emulate /dev/{udp,tcp,...}
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: svr4_32_net.c,v 1.11 2004/11/30 04:25:43 christos Exp $");
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#define COMPAT_SVR4 1
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/malloc.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/fcntl.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/protosw.h>
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#include <sys/domain.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/device.h>
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#include <sys/conf.h>
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#include <sys/mount.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <compat/svr4_32/svr4_32_types.h>
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#include <compat/svr4_32/svr4_32_util.h>
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#include <compat/svr4_32/svr4_32_signal.h>
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#include <compat/svr4_32/svr4_32_lwp.h>
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#include <compat/svr4_32/svr4_32_ucontext.h>
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#include <compat/svr4_32/svr4_32_syscallargs.h>
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#include <compat/svr4_32/svr4_32_ioctl.h>
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#include <compat/svr4_32/svr4_32_stropts.h>
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#include <compat/svr4_32/svr4_32_socket.h>
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/*
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* Device minor numbers
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*/
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enum {
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dev_ptm = 10,
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dev_arp = 26,
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dev_icmp = 27,
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dev_ip = 28,
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dev_tcp = 35,
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dev_udp = 36,
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dev_rawip = 37,
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dev_unix_dgram = 38,
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dev_unix_stream = 39,
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dev_unix_ord_stream = 40
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};
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int svr4_32_netattach __P((int));
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int svr4_soo_close __P((struct file *, struct proc *));
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int svr4_ptm_alloc __P((struct proc *));
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static const struct fileops svr4_32_netops = {
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soo_read, soo_write, soo_ioctl, soo_fcntl, soo_poll,
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soo_stat, svr4_soo_close
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};
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/*
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* Used by new config, but we don't need it.
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*/
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int
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svr4_32_netattach(n)
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int n;
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{
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return 0;
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}
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struct svr4_strm *
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svr4_32_stream_get(fp)
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struct file *fp;
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{
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struct socket *so;
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struct svr4_strm *st;
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if (fp == NULL || fp->f_type != DTYPE_SOCKET)
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return NULL;
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so = (struct socket *) fp->f_data;
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if (so->so_internal)
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return so->so_internal;
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/* Allocate a new one. */
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fp->f_ops = &svr4_32_netops;
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st = malloc(sizeof(struct svr4_strm), M_NETADDR, M_WAITOK);
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st->s_family = so->so_proto->pr_domain->dom_family;
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st->s_cmd = ~0;
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st->s_afd = -1;
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st->s_eventmask = 0;
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so->so_internal = st;
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return st;
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}
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