2a54322c7b
read/write/accept, then the expectation is that the blocked thread will exit and the close complete. Since only one fd is affected, but many fd can refer to the same file, the close code can only request the fs code unblock with ERESTART. Fixed for pipes and sockets, ERESTART will only be generated after such a close - so there should be no change for other programs. Also rename fo_abort() to fo_restart() (this used to be fo_drain()). Fixes PR/26567
143 lines
3.8 KiB
C
143 lines
3.8 KiB
C
/* $NetBSD: svr4_32_net.c,v 1.21 2009/12/20 09:36:05 dsl Exp $ */
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/*-
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* Copyright (c) 1994, 2008, 2009 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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*
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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 1.21 2009/12/20 09:36:05 dsl 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/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(int);
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int svr4_soo_close(file_t *);
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int svr4_ptm_alloc(struct proc *);
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static const struct fileops svr4_32_netops = {
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.fo_read = soo_read,
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.fo_write = soo_write,
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.fo_ioctl = soo_ioctl,
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.fo_fcntl = soo_fcntl,
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.fo_poll = soo_poll,
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.fo_stat = soo_stat,
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.fo_close = svr4_soo_close,
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.fo_restart = soo_restart,
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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(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(file_t *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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