833 lines
21 KiB
C
833 lines
21 KiB
C
/*
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* $FreeBSD$
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* Derived from:
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* $NetBSD: svr4_ipc.c,v 1.7 1998/10/19 22:43:00 tron Exp $ */
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/*-
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* Original copyright:
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*
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* Copyright (c) 1995 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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* Portions of this code have been derived from software contributed
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* to the FreeBSD Project by Mark Newton.
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*
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* Copyright (c) 1999 Mark Newton
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* XXX- This code is presently a no-op on FreeBSD (and isn't compiled due
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* to preprocessor conditionals). A nice project for a kernel hacking
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* novice might be to MakeItGo, but I have more important fish to fry
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* at present.
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*
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/shm.h>
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#include <sys/msg.h>
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#include <sys/sem.h>
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#include <sys/proc.h>
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#include <sys/uio.h>
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#include <sys/time.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/systm.h>
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#include <sys/stat.h>
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#include <sys/mount.h>
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#include <sys/sysproto.h>
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#include <svr4/svr4_types.h>
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#include <svr4/svr4_signal.h>
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#include <svr4/svr4_proto.h>
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#include <svr4/svr4_util.h>
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#include <svr4/svr4_ipc.h>
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#if defined(SYSVMSG) || defined(SYSVSHM) || defined(SYSVSEM)
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static void svr4_to_bsd_ipc_perm __P((const struct svr4_ipc_perm *,
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struct ipc_perm *));
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static void bsd_to_svr4_ipc_perm __P((const struct ipc_perm *,
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struct svr4_ipc_perm *));
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#endif
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#ifdef SYSVSEM
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static void bsd_to_svr4_semid_ds __P((const struct semid_ds *,
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struct svr4_semid_ds *));
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static void svr4_to_bsd_semid_ds __P((const struct svr4_semid_ds *,
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struct semid_ds *));
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static int svr4_setsemun __P((caddr_t *sgp, union semun **argp,
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union semun *usp));
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static int svr4_semop __P((struct proc *, void *, register_t *));
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static int svr4_semget __P((struct proc *, void *, register_t *));
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static int svr4_semctl __P((struct proc *, void *, register_t *));
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#endif
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#ifdef SYSVMSG
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static void bsd_to_svr4_msqid_ds __P((const struct msqid_ds *,
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struct svr4_msqid_ds *));
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static void svr4_to_bsd_msqid_ds __P((const struct svr4_msqid_ds *,
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struct msqid_ds *));
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static int svr4_msgsnd __P((struct proc *, void *, register_t *));
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static int svr4_msgrcv __P((struct proc *, void *, register_t *));
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static int svr4_msgget __P((struct proc *, void *, register_t *));
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static int svr4_msgctl __P((struct proc *, void *, register_t *));
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#endif
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#ifdef SYSVSHM
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static void bsd_to_svr4_shmid_ds __P((const struct shmid_ds *,
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struct svr4_shmid_ds *));
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static void svr4_to_bsd_shmid_ds __P((const struct svr4_shmid_ds *,
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struct shmid_ds *));
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static int svr4_shmat __P((struct proc *, void *, register_t *));
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static int svr4_shmdt __P((struct proc *, void *, register_t *));
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static int svr4_shmget __P((struct proc *, void *, register_t *));
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static int svr4_shmctl __P((struct proc *, void *, register_t *));
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#endif
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#if defined(SYSVMSG) || defined(SYSVSHM) || defined(SYSVSEM)
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static void
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svr4_to_bsd_ipc_perm(spp, bpp)
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const struct svr4_ipc_perm *spp;
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struct ipc_perm *bpp;
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{
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bpp->key = spp->key;
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bpp->uid = spp->uid;
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bpp->gid = spp->gid;
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bpp->cuid = spp->cuid;
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bpp->cgid = spp->cgid;
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bpp->mode = spp->mode;
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bpp->seq = spp->seq;
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}
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static void
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bsd_to_svr4_ipc_perm(bpp, spp)
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const struct ipc_perm *bpp;
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struct svr4_ipc_perm *spp;
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{
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spp->key = bpp->key;
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spp->uid = bpp->uid;
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spp->gid = bpp->gid;
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spp->cuid = bpp->cuid;
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spp->cgid = bpp->cgid;
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spp->mode = bpp->mode;
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spp->seq = bpp->seq;
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}
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#endif
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#ifdef SYSVSEM
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static void
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bsd_to_svr4_semid_ds(bds, sds)
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const struct semid_ds *bds;
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struct svr4_semid_ds *sds;
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{
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bsd_to_svr4_ipc_perm(&bds->sem_perm, &sds->sem_perm);
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sds->sem_base = (struct svr4_sem *) bds->sem_base;
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sds->sem_nsems = bds->sem_nsems;
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sds->sem_otime = bds->sem_otime;
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sds->sem_pad1 = bds->sem_pad1;
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sds->sem_ctime = bds->sem_ctime;
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sds->sem_pad2 = bds->sem_pad2;
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}
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static void
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svr4_to_bsd_semid_ds(sds, bds)
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const struct svr4_semid_ds *sds;
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struct semid_ds *bds;
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{
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svr4_to_bsd_ipc_perm(&sds->sem_perm, &bds->sem_perm);
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bds->sem_base = (struct sem *) bds->sem_base;
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bds->sem_nsems = sds->sem_nsems;
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bds->sem_otime = sds->sem_otime;
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bds->sem_pad1 = sds->sem_pad1;
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bds->sem_ctime = sds->sem_ctime;
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bds->sem_pad2 = sds->sem_pad2;
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}
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static int
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svr4_setsemun(sgp, argp, usp)
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caddr_t *sgp;
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union semun **argp;
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union semun *usp;
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{
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*argp = stackgap_alloc(sgp, sizeof(union semun));
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return copyout((caddr_t)usp, *argp, sizeof(union semun));
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}
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struct svr4_sys_semctl_args {
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syscallarg(int) what;
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syscallarg(int) semid;
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syscallarg(int) semnum;
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syscallarg(int) cmd;
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syscallarg(union semun) arg;
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};
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static int
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svr4_semctl(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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int error;
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struct svr4_sys_semctl_args *uap = v;
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struct sys___semctl_args ap;
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struct svr4_semid_ds ss;
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struct semid_ds bs, *bsp;
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caddr_t sg = stackgap_init(p->p_emul);
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SCARG(&ap, semid) = SCARG(uap, semid);
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SCARG(&ap, semnum) = SCARG(uap, semnum);
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switch (SCARG(uap, cmd)) {
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case SVR4_SEM_GETZCNT:
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case SVR4_SEM_GETNCNT:
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case SVR4_SEM_GETPID:
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case SVR4_SEM_GETVAL:
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switch (SCARG(uap, cmd)) {
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case SVR4_SEM_GETZCNT:
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SCARG(&ap, cmd) = GETZCNT;
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break;
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case SVR4_SEM_GETNCNT:
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SCARG(&ap, cmd) = GETNCNT;
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break;
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case SVR4_SEM_GETPID:
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SCARG(&ap, cmd) = GETPID;
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break;
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case SVR4_SEM_GETVAL:
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SCARG(&ap, cmd) = GETVAL;
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break;
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}
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return sys___semctl(p, &ap, retval);
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case SVR4_SEM_SETVAL:
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error = svr4_setsemun(&sg, &SCARG(&ap, arg), &SCARG(uap, arg));
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if (error)
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return error;
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SCARG(&ap, cmd) = SETVAL;
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return sys___semctl(p, &ap, retval);
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case SVR4_SEM_GETALL:
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error = svr4_setsemun(&sg, &SCARG(&ap, arg), &SCARG(uap, arg));
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if (error)
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return error;
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SCARG(&ap, cmd) = GETVAL;
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return sys___semctl(p, &ap, retval);
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case SVR4_SEM_SETALL:
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error = svr4_setsemun(&sg, &SCARG(&ap, arg), &SCARG(uap, arg));
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if (error)
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return error;
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SCARG(&ap, cmd) = SETVAL;
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return sys___semctl(p, &ap, retval);
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case SVR4_IPC_STAT:
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SCARG(&ap, cmd) = IPC_STAT;
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bsp = stackgap_alloc(&sg, sizeof(bs));
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error = svr4_setsemun(&sg, &SCARG(&ap, arg),
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(union semun *)&bsp);
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if (error)
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return error;
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if ((error = sys___semctl(p, &ap, retval)) != 0)
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return error;
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error = copyin((caddr_t)bsp, (caddr_t)&bs, sizeof(bs));
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if (error)
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return error;
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bsd_to_svr4_semid_ds(&bs, &ss);
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return copyout(&ss, SCARG(uap, arg).buf, sizeof(ss));
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case SVR4_IPC_SET:
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SCARG(&ap, cmd) = IPC_SET;
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bsp = stackgap_alloc(&sg, sizeof(bs));
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error = svr4_setsemun(&sg, &SCARG(&ap, arg),
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(union semun *)&bsp);
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if (error)
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return error;
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error = copyin(SCARG(uap, arg).buf, (caddr_t) &ss, sizeof ss);
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if (error)
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return error;
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svr4_to_bsd_semid_ds(&ss, &bs);
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error = copyout(&bs, bsp, sizeof(bs));
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if (error)
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return error;
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return sys___semctl(p, &ap, retval);
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case SVR4_IPC_RMID:
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SCARG(&ap, cmd) = IPC_RMID;
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bsp = stackgap_alloc(&sg, sizeof(bs));
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error = svr4_setsemun(&sg, &SCARG(&ap, arg),
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(union semun *)&bsp);
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if (error)
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return error;
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error = copyin(SCARG(uap, arg).buf, &ss, sizeof ss);
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if (error)
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return error;
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svr4_to_bsd_semid_ds(&ss, &bs);
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error = copyout(&bs, bsp, sizeof(bs));
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if (error)
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return error;
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return sys___semctl(p, &ap, retval);
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default:
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return EINVAL;
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}
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}
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struct svr4_sys_semget_args {
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syscallarg(int) what;
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syscallarg(svr4_key_t) key;
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syscallarg(int) nsems;
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syscallarg(int) semflg;
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};
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static int
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svr4_semget(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct svr4_sys_semget_args *uap = v;
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struct sys_semget_args ap;
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SCARG(&ap, key) = SCARG(uap, key);
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SCARG(&ap, nsems) = SCARG(uap, nsems);
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SCARG(&ap, semflg) = SCARG(uap, semflg);
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return sys_semget(p, &ap, retval);
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}
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struct svr4_sys_semop_args {
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syscallarg(int) what;
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syscallarg(int) semid;
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syscallarg(struct svr4_sembuf *) sops;
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syscallarg(u_int) nsops;
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};
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static int
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svr4_semop(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct svr4_sys_semop_args *uap = v;
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struct sys_semop_args ap;
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SCARG(&ap, semid) = SCARG(uap, semid);
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/* These are the same */
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SCARG(&ap, sops) = (struct sembuf *) SCARG(uap, sops);
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SCARG(&ap, nsops) = SCARG(uap, nsops);
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return sys_semop(p, &ap, retval);
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}
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int
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svr4_sys_semsys(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct svr4_sys_semsys_args *uap = v;
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DPRINTF(("svr4_semsys(%d)\n", SCARG(uap, what)));
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switch (SCARG(uap, what)) {
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case SVR4_semctl:
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return svr4_semctl(p, v, retval);
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case SVR4_semget:
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return svr4_semget(p, v, retval);
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case SVR4_semop:
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return svr4_semop(p, v, retval);
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default:
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return EINVAL;
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}
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}
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#endif
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#ifdef SYSVMSG
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static void
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bsd_to_svr4_msqid_ds(bds, sds)
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const struct msqid_ds *bds;
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struct svr4_msqid_ds *sds;
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{
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bsd_to_svr4_ipc_perm(&bds->msg_perm, &sds->msg_perm);
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sds->msg_first = (struct svr4_msg *) bds->msg_first;
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sds->msg_last = (struct svr4_msg *) bds->msg_last;
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sds->msg_cbytes = bds->msg_cbytes;
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sds->msg_qnum = bds->msg_qnum;
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sds->msg_qbytes = bds->msg_qbytes;
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sds->msg_lspid = bds->msg_lspid;
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sds->msg_lrpid = bds->msg_lrpid;
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sds->msg_stime = bds->msg_stime;
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sds->msg_pad1 = bds->msg_pad1;
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sds->msg_rtime = bds->msg_rtime;
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sds->msg_pad2 = bds->msg_pad2;
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sds->msg_ctime = bds->msg_ctime;
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sds->msg_pad3 = bds->msg_pad3;
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/* use the padding for the rest of the fields */
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{
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const short *pad = (const short *) bds->msg_pad4;
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sds->msg_cv = pad[0];
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sds->msg_qnum_cv = pad[1];
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}
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}
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static void
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svr4_to_bsd_msqid_ds(sds, bds)
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const struct svr4_msqid_ds *sds;
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struct msqid_ds *bds;
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{
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svr4_to_bsd_ipc_perm(&sds->msg_perm, &bds->msg_perm);
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bds->msg_first = (struct msg *) sds->msg_first;
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bds->msg_last = (struct msg *) sds->msg_last;
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bds->msg_cbytes = sds->msg_cbytes;
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bds->msg_qnum = sds->msg_qnum;
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bds->msg_qbytes = sds->msg_qbytes;
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bds->msg_lspid = sds->msg_lspid;
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bds->msg_lrpid = sds->msg_lrpid;
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bds->msg_stime = sds->msg_stime;
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bds->msg_pad1 = sds->msg_pad1;
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bds->msg_rtime = sds->msg_rtime;
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bds->msg_pad2 = sds->msg_pad2;
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bds->msg_ctime = sds->msg_ctime;
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bds->msg_pad3 = sds->msg_pad3;
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/* use the padding for the rest of the fields */
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{
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short *pad = (short *) bds->msg_pad4;
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pad[0] = sds->msg_cv;
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|
pad[1] = sds->msg_qnum_cv;
|
|
}
|
|
}
|
|
|
|
struct svr4_sys_msgsnd_args {
|
|
syscallarg(int) what;
|
|
syscallarg(int) msqid;
|
|
syscallarg(void *) msgp;
|
|
syscallarg(size_t) msgsz;
|
|
syscallarg(int) msgflg;
|
|
};
|
|
|
|
static int
|
|
svr4_msgsnd(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_msgsnd_args *uap = v;
|
|
struct sys_msgsnd_args ap;
|
|
|
|
SCARG(&ap, msqid) = SCARG(uap, msqid);
|
|
SCARG(&ap, msgp) = SCARG(uap, msgp);
|
|
SCARG(&ap, msgsz) = SCARG(uap, msgsz);
|
|
SCARG(&ap, msgflg) = SCARG(uap, msgflg);
|
|
|
|
return sys_msgsnd(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_msgrcv_args {
|
|
syscallarg(int) what;
|
|
syscallarg(int) msqid;
|
|
syscallarg(void *) msgp;
|
|
syscallarg(size_t) msgsz;
|
|
syscallarg(long) msgtyp;
|
|
syscallarg(int) msgflg;
|
|
};
|
|
|
|
static int
|
|
svr4_msgrcv(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_msgrcv_args *uap = v;
|
|
struct sys_msgrcv_args ap;
|
|
|
|
SCARG(&ap, msqid) = SCARG(uap, msqid);
|
|
SCARG(&ap, msgp) = SCARG(uap, msgp);
|
|
SCARG(&ap, msgsz) = SCARG(uap, msgsz);
|
|
SCARG(&ap, msgtyp) = SCARG(uap, msgtyp);
|
|
SCARG(&ap, msgflg) = SCARG(uap, msgflg);
|
|
|
|
return sys_msgrcv(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_msgget_args {
|
|
syscallarg(int) what;
|
|
syscallarg(svr4_key_t) key;
|
|
syscallarg(int) msgflg;
|
|
};
|
|
|
|
static int
|
|
svr4_msgget(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_msgget_args *uap = v;
|
|
struct sys_msgget_args ap;
|
|
|
|
SCARG(&ap, key) = SCARG(uap, key);
|
|
SCARG(&ap, msgflg) = SCARG(uap, msgflg);
|
|
|
|
return sys_msgget(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_msgctl_args {
|
|
syscallarg(int) what;
|
|
syscallarg(int) msqid;
|
|
syscallarg(int) cmd;
|
|
syscallarg(struct svr4_msqid_ds *) buf;
|
|
};
|
|
|
|
static int
|
|
svr4_msgctl(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
int error;
|
|
struct svr4_sys_msgctl_args *uap = v;
|
|
struct sys_msgctl_args ap;
|
|
struct svr4_msqid_ds ss;
|
|
struct msqid_ds bs;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
|
|
SCARG(&ap, msqid) = SCARG(uap, msqid);
|
|
SCARG(&ap, cmd) = SCARG(uap, cmd);
|
|
SCARG(&ap, buf) = stackgap_alloc(&sg, sizeof(bs));
|
|
|
|
switch (SCARG(uap, cmd)) {
|
|
case SVR4_IPC_STAT:
|
|
SCARG(&ap, cmd) = IPC_STAT;
|
|
if ((error = sys_msgctl(p, &ap, retval)) != 0)
|
|
return error;
|
|
error = copyin(&bs, SCARG(&ap, buf), sizeof bs);
|
|
if (error)
|
|
return error;
|
|
bsd_to_svr4_msqid_ds(&bs, &ss);
|
|
return copyout(&ss, SCARG(uap, buf), sizeof ss);
|
|
|
|
case SVR4_IPC_SET:
|
|
SCARG(&ap, cmd) = IPC_SET;
|
|
error = copyin(SCARG(uap, buf), &ss, sizeof ss);
|
|
if (error)
|
|
return error;
|
|
svr4_to_bsd_msqid_ds(&ss, &bs);
|
|
error = copyout(&bs, SCARG(&ap, buf), sizeof bs);
|
|
if (error)
|
|
return error;
|
|
return sys_msgctl(p, &ap, retval);
|
|
|
|
case SVR4_IPC_RMID:
|
|
SCARG(&ap, cmd) = IPC_RMID;
|
|
error = copyin(SCARG(uap, buf), &ss, sizeof ss);
|
|
if (error)
|
|
return error;
|
|
svr4_to_bsd_msqid_ds(&ss, &bs);
|
|
error = copyout(&bs, SCARG(&ap, buf), sizeof bs);
|
|
if (error)
|
|
return error;
|
|
return sys_msgctl(p, &ap, retval);
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
int
|
|
svr4_sys_msgsys(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_msgsys_args *uap = v;
|
|
|
|
DPRINTF(("svr4_msgsys(%d)\n", SCARG(uap, what)));
|
|
|
|
switch (SCARG(uap, what)) {
|
|
case SVR4_msgsnd:
|
|
return svr4_msgsnd(p, v, retval);
|
|
case SVR4_msgrcv:
|
|
return svr4_msgrcv(p, v, retval);
|
|
case SVR4_msgget:
|
|
return svr4_msgget(p, v, retval);
|
|
case SVR4_msgctl:
|
|
return svr4_msgctl(p, v, retval);
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef SYSVSHM
|
|
|
|
static void
|
|
bsd_to_svr4_shmid_ds(bds, sds)
|
|
const struct shmid_ds *bds;
|
|
struct svr4_shmid_ds *sds;
|
|
{
|
|
bsd_to_svr4_ipc_perm(&bds->shm_perm, &sds->shm_perm);
|
|
sds->shm_segsz = bds->shm_segsz;
|
|
sds->shm_lkcnt = 0;
|
|
sds->shm_lpid = bds->shm_lpid;
|
|
sds->shm_cpid = bds->shm_cpid;
|
|
sds->shm_amp = bds->shm_internal;
|
|
sds->shm_nattch = bds->shm_nattch;
|
|
sds->shm_cnattch = 0;
|
|
sds->shm_atime = bds->shm_atime;
|
|
sds->shm_pad1 = 0;
|
|
sds->shm_dtime = bds->shm_dtime;
|
|
sds->shm_pad2 = 0;
|
|
sds->shm_ctime = bds->shm_ctime;
|
|
sds->shm_pad3 = 0;
|
|
}
|
|
|
|
static void
|
|
svr4_to_bsd_shmid_ds(sds, bds)
|
|
const struct svr4_shmid_ds *sds;
|
|
struct shmid_ds *bds;
|
|
{
|
|
svr4_to_bsd_ipc_perm(&sds->shm_perm, &bds->shm_perm);
|
|
bds->shm_segsz = sds->shm_segsz;
|
|
bds->shm_lpid = sds->shm_lpid;
|
|
bds->shm_cpid = sds->shm_cpid;
|
|
bds->shm_internal = sds->shm_amp;
|
|
bds->shm_nattch = sds->shm_nattch;
|
|
bds->shm_atime = sds->shm_atime;
|
|
bds->shm_dtime = sds->shm_dtime;
|
|
bds->shm_ctime = sds->shm_ctime;
|
|
}
|
|
|
|
struct svr4_sys_shmat_args {
|
|
syscallarg(int) what;
|
|
syscallarg(int) shmid;
|
|
syscallarg(void *) shmaddr;
|
|
syscallarg(int) shmflg;
|
|
};
|
|
|
|
static int
|
|
svr4_shmat(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_shmat_args *uap = v;
|
|
struct sys_shmat_args ap;
|
|
|
|
SCARG(&ap, shmid) = SCARG(uap, shmid);
|
|
SCARG(&ap, shmaddr) = SCARG(uap, shmaddr);
|
|
SCARG(&ap, shmflg) = SCARG(uap, shmflg);
|
|
|
|
return sys_shmat(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_shmdt_args {
|
|
syscallarg(int) what;
|
|
syscallarg(void *) shmaddr;
|
|
};
|
|
|
|
static int
|
|
svr4_shmdt(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_shmdt_args *uap = v;
|
|
struct sys_shmdt_args ap;
|
|
|
|
SCARG(&ap, shmaddr) = SCARG(uap, shmaddr);
|
|
|
|
return sys_shmdt(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_shmget_args {
|
|
syscallarg(int) what;
|
|
syscallarg(key_t) key;
|
|
syscallarg(int) size;
|
|
syscallarg(int) shmflg;
|
|
};
|
|
|
|
static int
|
|
svr4_shmget(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_shmget_args *uap = v;
|
|
struct sys_shmget_args ap;
|
|
|
|
SCARG(&ap, key) = SCARG(uap, key);
|
|
SCARG(&ap, size) = SCARG(uap, size);
|
|
SCARG(&ap, shmflg) = SCARG(uap, shmflg);
|
|
|
|
return sys_shmget(p, &ap, retval);
|
|
}
|
|
|
|
struct svr4_sys_shmctl_args {
|
|
syscallarg(int) what;
|
|
syscallarg(int) shmid;
|
|
syscallarg(int) cmd;
|
|
syscallarg(struct svr4_shmid_ds *) buf;
|
|
};
|
|
|
|
int
|
|
svr4_shmctl(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_shmctl_args *uap = v;
|
|
int error;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
struct sys_shmctl_args ap;
|
|
struct shmid_ds bs;
|
|
struct svr4_shmid_ds ss;
|
|
|
|
SCARG(&ap, shmid) = SCARG(uap, shmid);
|
|
|
|
if (SCARG(uap, buf) != NULL) {
|
|
SCARG(&ap, buf) = stackgap_alloc(&sg, sizeof (struct shmid_ds));
|
|
switch (SCARG(uap, cmd)) {
|
|
case SVR4_IPC_SET:
|
|
case SVR4_IPC_RMID:
|
|
case SVR4_SHM_LOCK:
|
|
case SVR4_SHM_UNLOCK:
|
|
error = copyin(SCARG(uap, buf), (caddr_t) &ss,
|
|
sizeof ss);
|
|
if (error)
|
|
return error;
|
|
svr4_to_bsd_shmid_ds(&ss, &bs);
|
|
error = copyout(&bs, SCARG(&ap, buf), sizeof bs);
|
|
if (error)
|
|
return error;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
SCARG(&ap, buf) = NULL;
|
|
|
|
|
|
switch (SCARG(uap, cmd)) {
|
|
case SVR4_IPC_STAT:
|
|
SCARG(&ap, cmd) = IPC_STAT;
|
|
if ((error = sys_shmctl(p, &ap, retval)) != 0)
|
|
return error;
|
|
if (SCARG(uap, buf) == NULL)
|
|
return 0;
|
|
error = copyin(&bs, SCARG(&ap, buf), sizeof bs);
|
|
if (error)
|
|
return error;
|
|
bsd_to_svr4_shmid_ds(&bs, &ss);
|
|
return copyout(&ss, SCARG(uap, buf), sizeof ss);
|
|
|
|
case SVR4_IPC_SET:
|
|
SCARG(&ap, cmd) = IPC_SET;
|
|
return sys_shmctl(p, &ap, retval);
|
|
|
|
case SVR4_IPC_RMID:
|
|
case SVR4_SHM_LOCK:
|
|
case SVR4_SHM_UNLOCK:
|
|
switch (SCARG(uap, cmd)) {
|
|
case SVR4_IPC_RMID:
|
|
SCARG(&ap, cmd) = IPC_RMID;
|
|
break;
|
|
case SVR4_SHM_LOCK:
|
|
SCARG(&ap, cmd) = SHM_LOCK;
|
|
break;
|
|
case SVR4_SHM_UNLOCK:
|
|
SCARG(&ap, cmd) = SHM_UNLOCK;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return sys_shmctl(p, &ap, retval);
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
int
|
|
svr4_sys_shmsys(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_shmsys_args *uap = v;
|
|
|
|
DPRINTF(("svr4_shmsys(%d)\n", SCARG(uap, what)));
|
|
|
|
switch (SCARG(uap, what)) {
|
|
case SVR4_shmat:
|
|
return svr4_shmat(p, v, retval);
|
|
case SVR4_shmdt:
|
|
return svr4_shmdt(p, v, retval);
|
|
case SVR4_shmget:
|
|
return svr4_shmget(p, v, retval);
|
|
case SVR4_shmctl:
|
|
return svr4_shmctl(p, v, retval);
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
}
|
|
#endif /* SYSVSHM */
|