99851f359e
patch modifies makesyscalls.sh to prefix all of the non-compatibility calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel entry points and all places in the code that use them. It also fixes an additional name space collision between the kernel function psignal and the libc function of the same name by renaming the kernel psignal kern_psignal(). By introducing this change now we will ease future MFCs that change syscalls. Reviewed by: rwatson Approved by: re (bz)
708 lines
16 KiB
C
708 lines
16 KiB
C
/*-
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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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* Derived from: $NetBSD: svr4_ipc.c,v 1.7 1998/10/19 22:43:00 tron Exp $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_sysvipc.h"
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#include <sys/param.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <sys/proc.h>
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#include <sys/sem.h>
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#include <sys/shm.h>
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#include <sys/syscallsubr.h>
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#include <sys/sysproto.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <compat/svr4/svr4.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_proto.h>
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#include <compat/svr4/svr4_util.h>
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#include <compat/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(const struct svr4_ipc_perm *,
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struct ipc_perm *);
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static void bsd_to_svr4_ipc_perm(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(const struct semid_ds *,
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struct svr4_semid_ds *);
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static void svr4_to_bsd_semid_ds(const struct svr4_semid_ds *,
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struct semid_ds *);
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static int svr4_semop(struct thread *, void *);
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static int svr4_semget(struct thread *, void *);
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static int svr4_semctl(struct thread *, void *);
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#endif
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#ifdef SYSVMSG
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static void bsd_to_svr4_msqid_ds(const struct msqid_ds *,
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struct svr4_msqid_ds *);
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static void svr4_to_bsd_msqid_ds(const struct svr4_msqid_ds *,
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struct msqid_ds *);
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static int svr4_msgsnd(struct thread *, void *);
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static int svr4_msgrcv(struct thread *, void *);
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static int svr4_msgget(struct thread *, void *);
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static int svr4_msgctl(struct thread *, void *);
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#endif
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#ifdef SYSVSHM
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static void bsd_to_svr4_shmid_ds(const struct shmid_ds *,
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struct svr4_shmid_ds *);
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static void svr4_to_bsd_shmid_ds(const struct svr4_shmid_ds *,
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struct shmid_ds *);
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static int svr4_shmat(struct thread *, void *);
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static int svr4_shmdt(struct thread *, void *);
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static int svr4_shmget(struct thread *, void *);
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static int svr4_shmctl(struct thread *, void *);
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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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bzero(sds, sizeof(*sds));
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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_ctime = bds->sem_ctime;
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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_ctime = sds->sem_ctime;
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}
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struct svr4_sys_semctl_args {
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int what;
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int semid;
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int semnum;
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int cmd;
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union semun arg;
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};
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static int
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svr4_semctl(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_semctl_args *uap = v;
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struct svr4_semid_ds ss;
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struct semid_ds bs;
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union semun semun;
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register_t rval;
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int cmd, error;
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switch (uap->cmd) {
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case SVR4_SEM_GETZCNT:
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cmd = GETZCNT;
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break;
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case SVR4_SEM_GETNCNT:
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cmd = GETNCNT;
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break;
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case SVR4_SEM_GETPID:
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cmd = GETPID;
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break;
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case SVR4_SEM_GETVAL:
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cmd = GETVAL;
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break;
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case SVR4_SEM_SETVAL:
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cmd = SETVAL;
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break;
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case SVR4_SEM_GETALL:
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cmd = GETVAL;
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break;
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case SVR4_SEM_SETALL:
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cmd = SETVAL;
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break;
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case SVR4_IPC_STAT:
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cmd = IPC_STAT;
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semun.buf = &bs;
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error = kern_semctl(td, uap->semid, uap->semnum, cmd, &semun,
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&rval);
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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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error = copyout(&ss, uap->arg.buf, sizeof(ss));
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if (error == 0)
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td->td_retval[0] = rval;
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return (error);
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case SVR4_IPC_SET:
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cmd = IPC_SET;
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error = copyin(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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semun.buf = &bs;
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return (kern_semctl(td, uap->semid, uap->semnum, cmd, &semun,
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td->td_retval));
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case SVR4_IPC_RMID:
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cmd = IPC_RMID;
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break;
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default:
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return EINVAL;
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}
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return (kern_semctl(td, uap->semid, uap->semnum, cmd, &uap->arg,
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td->td_retval));
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}
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struct svr4_sys_semget_args {
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int what;
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svr4_key_t key;
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int nsems;
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int semflg;
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};
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static int
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svr4_semget(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_semget_args *uap = v;
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struct semget_args ap;
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ap.key = uap->key;
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ap.nsems = uap->nsems;
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ap.semflg = uap->semflg;
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return sys_semget(td, &ap);
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}
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struct svr4_sys_semop_args {
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int what;
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int semid;
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struct svr4_sembuf * sops;
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u_int nsops;
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};
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static int
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svr4_semop(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_semop_args *uap = v;
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struct semop_args ap;
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ap.semid = uap->semid;
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/* These are the same */
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ap.sops = (struct sembuf *) uap->sops;
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ap.nsops = uap->nsops;
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return sys_semop(td, &ap);
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}
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int
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svr4_sys_semsys(td, uap)
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struct thread *td;
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struct svr4_sys_semsys_args *uap;
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{
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DPRINTF(("svr4_semsys(%d)\n", uap->what));
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switch (uap->what) {
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case SVR4_semctl:
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return svr4_semctl(td, uap);
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case SVR4_semget:
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return svr4_semget(td, uap);
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case SVR4_semop:
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return svr4_semop(td, uap);
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default:
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return EINVAL;
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}
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}
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MODULE_DEPEND(svr4elf, sysvsem, 1, 1, 1);
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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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bzero(sds, sizeof(*sds));
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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_rtime = bds->msg_rtime;
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sds->msg_ctime = bds->msg_ctime;
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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_rtime = sds->msg_rtime;
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bds->msg_ctime = sds->msg_ctime;
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}
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struct svr4_sys_msgsnd_args {
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int what;
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int msqid;
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void * msgp;
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size_t msgsz;
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int msgflg;
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};
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static int
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svr4_msgsnd(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_msgsnd_args *uap = v;
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struct msgsnd_args ap;
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ap.msqid = uap->msqid;
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ap.msgp = uap->msgp;
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ap.msgsz = uap->msgsz;
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ap.msgflg = uap->msgflg;
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return sys_msgsnd(td, &ap);
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}
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struct svr4_sys_msgrcv_args {
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int what;
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int msqid;
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void * msgp;
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size_t msgsz;
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long msgtyp;
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int msgflg;
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};
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static int
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svr4_msgrcv(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_msgrcv_args *uap = v;
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struct msgrcv_args ap;
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ap.msqid = uap->msqid;
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ap.msgp = uap->msgp;
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ap.msgsz = uap->msgsz;
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ap.msgtyp = uap->msgtyp;
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ap.msgflg = uap->msgflg;
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return sys_msgrcv(td, &ap);
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}
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struct svr4_sys_msgget_args {
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int what;
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svr4_key_t key;
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int msgflg;
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};
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static int
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svr4_msgget(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_msgget_args *uap = v;
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struct msgget_args ap;
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ap.key = uap->key;
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ap.msgflg = uap->msgflg;
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return sys_msgget(td, &ap);
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}
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struct svr4_sys_msgctl_args {
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int what;
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int msqid;
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int cmd;
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struct svr4_msqid_ds * buf;
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};
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static int
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svr4_msgctl(td, v)
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struct thread *td;
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void *v;
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{
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struct svr4_sys_msgctl_args *uap = v;
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struct svr4_msqid_ds ss;
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struct msqid_ds bs;
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int error;
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switch (uap->cmd) {
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case SVR4_IPC_STAT:
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error = kern_msgctl(td, uap->msqid, IPC_STAT, &bs);
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if (error)
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return error;
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bsd_to_svr4_msqid_ds(&bs, &ss);
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return copyout(&ss, uap->buf, sizeof ss);
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case SVR4_IPC_SET:
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error = copyin(uap->buf, &ss, sizeof ss);
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if (error)
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return error;
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svr4_to_bsd_msqid_ds(&ss, &bs);
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return (kern_msgctl(td, uap->msqid, IPC_SET, &bs));
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case SVR4_IPC_RMID:
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return (kern_msgctl(td, uap->msqid, IPC_RMID, NULL));
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default:
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return EINVAL;
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}
|
|
}
|
|
|
|
int
|
|
svr4_sys_msgsys(td, uap)
|
|
struct thread *td;
|
|
struct svr4_sys_msgsys_args *uap;
|
|
{
|
|
|
|
DPRINTF(("svr4_msgsys(%d)\n", uap->what));
|
|
|
|
switch (uap->what) {
|
|
case SVR4_msgsnd:
|
|
return svr4_msgsnd(td, uap);
|
|
case SVR4_msgrcv:
|
|
return svr4_msgrcv(td, uap);
|
|
case SVR4_msgget:
|
|
return svr4_msgget(td, uap);
|
|
case SVR4_msgctl:
|
|
return svr4_msgctl(td, uap);
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
MODULE_DEPEND(svr4elf, sysvmsg, 1, 1, 1);
|
|
#endif
|
|
|
|
#ifdef SYSVSHM
|
|
|
|
static void
|
|
bsd_to_svr4_shmid_ds(bds, sds)
|
|
const struct shmid_ds *bds;
|
|
struct svr4_shmid_ds *sds;
|
|
{
|
|
bzero(sds, sizeof(*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 = 0;
|
|
sds->shm_nattch = bds->shm_nattch;
|
|
sds->shm_cnattch = 0;
|
|
sds->shm_atime = bds->shm_atime;
|
|
sds->shm_dtime = bds->shm_dtime;
|
|
sds->shm_ctime = bds->shm_ctime;
|
|
}
|
|
|
|
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_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 {
|
|
int what;
|
|
int shmid;
|
|
void * shmaddr;
|
|
int shmflg;
|
|
};
|
|
|
|
static int
|
|
svr4_shmat(td, v)
|
|
struct thread *td;
|
|
void *v;
|
|
{
|
|
struct svr4_sys_shmat_args *uap = v;
|
|
struct shmat_args ap;
|
|
|
|
ap.shmid = uap->shmid;
|
|
ap.shmaddr = uap->shmaddr;
|
|
ap.shmflg = uap->shmflg;
|
|
|
|
return sys_shmat(td, &ap);
|
|
}
|
|
|
|
struct svr4_sys_shmdt_args {
|
|
int what;
|
|
void * shmaddr;
|
|
};
|
|
|
|
static int
|
|
svr4_shmdt(td, v)
|
|
struct thread *td;
|
|
void *v;
|
|
{
|
|
struct svr4_sys_shmdt_args *uap = v;
|
|
struct shmdt_args ap;
|
|
|
|
ap.shmaddr = uap->shmaddr;
|
|
|
|
return sys_shmdt(td, &ap);
|
|
}
|
|
|
|
struct svr4_sys_shmget_args {
|
|
int what;
|
|
key_t key;
|
|
int size;
|
|
int shmflg;
|
|
};
|
|
|
|
static int
|
|
svr4_shmget(td, v)
|
|
struct thread *td;
|
|
void *v;
|
|
{
|
|
struct svr4_sys_shmget_args *uap = v;
|
|
struct shmget_args ap;
|
|
|
|
ap.key = uap->key;
|
|
ap.size = uap->size;
|
|
ap.shmflg = uap->shmflg;
|
|
|
|
return sys_shmget(td, &ap);
|
|
}
|
|
|
|
struct svr4_sys_shmctl_args {
|
|
int what;
|
|
int shmid;
|
|
int cmd;
|
|
struct svr4_shmid_ds * buf;
|
|
};
|
|
|
|
int
|
|
svr4_shmctl(td, v)
|
|
struct thread *td;
|
|
void *v;
|
|
{
|
|
struct svr4_sys_shmctl_args *uap = v;
|
|
struct shmid_ds bs;
|
|
struct svr4_shmid_ds ss;
|
|
size_t bufsize;
|
|
int cmd, error;
|
|
|
|
if (uap->buf != NULL) {
|
|
switch (uap->cmd) {
|
|
case SVR4_IPC_SET:
|
|
case SVR4_SHM_LOCK:
|
|
case SVR4_SHM_UNLOCK:
|
|
error = copyin(uap->buf, &ss, sizeof(ss));
|
|
if (error)
|
|
return (error);
|
|
svr4_to_bsd_shmid_ds(&ss, &bs);
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
|
|
switch (uap->cmd) {
|
|
case SVR4_IPC_STAT:
|
|
cmd = IPC_STAT;
|
|
break;
|
|
case SVR4_IPC_SET:
|
|
cmd = IPC_SET;
|
|
break;
|
|
case SVR4_IPC_RMID:
|
|
cmd = IPC_RMID;
|
|
break;
|
|
case SVR4_SHM_LOCK:
|
|
cmd = SHM_LOCK;
|
|
break;
|
|
case SVR4_SHM_UNLOCK:
|
|
cmd = SHM_UNLOCK;
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
error = kern_shmctl(td, uap->shmid, cmd, &bs, &bufsize);
|
|
if (error)
|
|
return (error);
|
|
|
|
switch (uap->cmd) {
|
|
case SVR4_IPC_STAT:
|
|
if (uap->buf != NULL) {
|
|
bsd_to_svr4_shmid_ds(&bs, &ss);
|
|
error = copyout(&ss, uap->buf, sizeof(ss));
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
svr4_sys_shmsys(td, uap)
|
|
struct thread *td;
|
|
struct svr4_sys_shmsys_args *uap;
|
|
{
|
|
|
|
DPRINTF(("svr4_shmsys(%d)\n", uap->what));
|
|
|
|
switch (uap->what) {
|
|
case SVR4_shmat:
|
|
return svr4_shmat(td, uap);
|
|
case SVR4_shmdt:
|
|
return svr4_shmdt(td, uap);
|
|
case SVR4_shmget:
|
|
return svr4_shmget(td, uap);
|
|
case SVR4_shmctl:
|
|
return svr4_shmctl(td, uap);
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
}
|
|
|
|
MODULE_DEPEND(svr4elf, sysvshm, 1, 1, 1);
|
|
#endif /* SYSVSHM */
|