372 lines
8.8 KiB
C
372 lines
8.8 KiB
C
/* $NetBSD: netbsd32_compat_14_sysv.c,v 1.4 2021/01/19 03:20:13 simonb Exp $ */
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/*
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* Copyright (c) 1999 Eduardo E. Horvath
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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,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_14_sysv.c,v 1.4 2021/01/19 03:20:13 simonb Exp $");
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#ifdef _KERNEL_OPT
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#include "opt_sysv.h"
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#include "opt_compat_netbsd.h"
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#endif
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#include <sys/param.h>
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#include <sys/ipc.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/signal.h>
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#include <sys/proc.h>
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#include <sys/mount.h>
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#include <sys/msg.h>
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#include <sys/sem.h>
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#include <sys/shm.h>
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#include <sys/syscallargs.h>
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#include <sys/syscallvar.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_syscall.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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#include <compat/sys/siginfo.h>
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#include <compat/sys/shm.h>
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#if defined(COMPAT_14)
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#if defined(SYSVMSG)
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static inline void
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netbsd32_ipc_perm14_to_native(struct netbsd32_ipc_perm14 *operm, struct ipc_perm *perm)
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{
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#define CVT(x) perm->x = operm->x
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CVT(uid);
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CVT(gid);
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CVT(cuid);
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CVT(cgid);
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CVT(mode);
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#undef CVT
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}
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static inline void
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native_to_netbsd32_ipc_perm14(struct ipc_perm *perm, struct netbsd32_ipc_perm14 *operm)
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{
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memset(operm, 0, sizeof *operm);
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#define CVT(x) operm->x = perm->x
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CVT(uid);
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CVT(gid);
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CVT(cuid);
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CVT(cgid);
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CVT(mode);
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#undef CVT
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/*
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* Not part of the API, but some programs might look at it.
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*/
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operm->seq = perm->_seq;
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operm->key = (key_t)perm->_key;
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}
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static inline void
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netbsd32_msqid_ds14_to_native(struct netbsd32_msqid_ds14 *omsqbuf, struct msqid_ds *msqbuf)
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{
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netbsd32_ipc_perm14_to_native(&omsqbuf->msg_perm, &msqbuf->msg_perm);
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#define CVT(x) msqbuf->x = omsqbuf->x
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CVT(msg_qnum);
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CVT(msg_qbytes);
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CVT(msg_lspid);
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CVT(msg_lrpid);
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CVT(msg_stime);
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CVT(msg_rtime);
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CVT(msg_ctime);
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#undef CVT
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}
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static inline void
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native_to_netbsd32_msqid_ds14(struct msqid_ds *msqbuf, struct netbsd32_msqid_ds14 *omsqbuf)
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{
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memset(omsqbuf, 0, sizeof *omsqbuf);
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native_to_netbsd32_ipc_perm14(&msqbuf->msg_perm, &omsqbuf->msg_perm);
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#define CVT(x) omsqbuf->x = msqbuf->x
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CVT(msg_qnum);
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CVT(msg_qbytes);
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CVT(msg_lspid);
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CVT(msg_lrpid);
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CVT(msg_stime);
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CVT(msg_rtime);
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CVT(msg_ctime);
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#undef CVT
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/*
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* Not part of the API, but some programs might look at it.
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*/
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omsqbuf->msg_cbytes = msqbuf->_msg_cbytes;
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}
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#endif
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#if defined(SYSVSEM)
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static inline void
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netbsd32_semid_ds14_to_native(struct netbsd32_semid_ds14 *osembuf, struct semid_ds *sembuf)
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{
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netbsd32_ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm);
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#define CVT(x) sembuf->x = osembuf->x
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CVT(sem_nsems);
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CVT(sem_otime);
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CVT(sem_ctime);
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#undef CVT
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}
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static inline void
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native_to_netbsd32_semid_ds14(struct semid_ds *sembuf, struct netbsd32_semid_ds14 *osembuf)
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{
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memset(osembuf, 0, sizeof *osembuf);
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native_to_netbsd32_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm);
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#define CVT(x) osembuf->x = sembuf->x
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CVT(sem_nsems);
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CVT(sem_otime);
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CVT(sem_ctime);
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#undef CVT
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}
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static inline void
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netbsd32_shmid_ds14_to_native(struct netbsd32_shmid_ds14 *oshmbuf, struct shmid_ds *shmbuf)
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{
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netbsd32_ipc_perm14_to_native(&oshmbuf->shm_perm, &shmbuf->shm_perm);
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#define CVT(x) shmbuf->x = oshmbuf->x
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CVT(shm_segsz);
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CVT(shm_lpid);
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CVT(shm_cpid);
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CVT(shm_nattch);
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CVT(shm_atime);
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CVT(shm_dtime);
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CVT(shm_ctime);
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#undef CVT
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}
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static inline void
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native_to_netbsd32_shmid_ds14(struct shmid_ds *shmbuf, struct netbsd32_shmid_ds14 *oshmbuf)
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{
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memset(oshmbuf, 0, sizeof *oshmbuf);
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native_to_netbsd32_ipc_perm14(&shmbuf->shm_perm, &oshmbuf->shm_perm);
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#define CVT(x) oshmbuf->x = shmbuf->x
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CVT(shm_segsz);
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CVT(shm_lpid);
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CVT(shm_cpid);
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CVT(shm_nattch);
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CVT(shm_atime);
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CVT(shm_dtime);
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CVT(shm_ctime);
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#undef CVT
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}
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/*
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* the compat_14 system calls
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*/
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int
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compat_14_netbsd32_msgctl(struct lwp *l, const struct compat_14_netbsd32_msgctl_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) msqid;
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syscallarg(int) cmd;
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syscallarg(struct msqid_ds14 *) buf;
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} */
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struct msqid_ds msqbuf;
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struct netbsd32_msqid_ds14 omsqbuf;
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int cmd, error;
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cmd = SCARG(uap, cmd);
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if (cmd == IPC_SET) {
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error = copyin(SCARG_P32(uap, buf),
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&omsqbuf, sizeof(omsqbuf));
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if (error)
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return error;
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netbsd32_msqid_ds14_to_native(&omsqbuf, &msqbuf);
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}
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error = msgctl1(l, SCARG(uap, msqid), cmd,
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(cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL);
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if (error == 0 && cmd == IPC_STAT) {
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native_to_netbsd32_msqid_ds14(&msqbuf, &omsqbuf);
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error = copyout(&omsqbuf,
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SCARG_P32(uap, buf), sizeof(omsqbuf));
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}
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return error;
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}
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#endif
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#if defined(SYSVSEM)
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int
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compat_14_netbsd32___semctl(struct lwp *l, const struct compat_14_netbsd32___semctl_args *uap, register_t *retval)
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{
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/* {
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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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union __semun arg;
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struct semid_ds sembuf;
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struct netbsd32_semid_ds14 osembuf;
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int cmd, error;
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void *pass_arg = NULL;
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cmd = SCARG(uap, cmd);
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switch (cmd) {
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case IPC_SET:
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case IPC_STAT:
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pass_arg = &sembuf;
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break;
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case GETALL:
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case SETVAL:
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case SETALL:
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pass_arg = &arg;
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break;
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}
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if (pass_arg != NULL) {
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error = copyin(NETBSD32IPTR64(SCARG(uap, arg)), &arg,
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sizeof(arg));
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if (error)
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return error;
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if (cmd == IPC_SET) {
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error = copyin(arg.buf, &osembuf, sizeof(osembuf));
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if (error)
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return error;
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netbsd32_semid_ds14_to_native(&osembuf, &sembuf);
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}
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}
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error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
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pass_arg, retval);
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if (error == 0 && cmd == IPC_STAT) {
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native_to_netbsd32_semid_ds14(&sembuf, &osembuf);
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error = copyout(&osembuf, arg.buf, sizeof(osembuf));
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}
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return error;
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}
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#endif
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#if defined(SYSVSHM)
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int
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compat_14_netbsd32_shmctl(struct lwp *l, const struct compat_14_netbsd32_shmctl_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) shmid;
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syscallarg(int) cmd;
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syscallarg(struct netbsd32_shmid_ds14 *) buf;
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} */
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struct shmid_ds shmbuf;
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struct netbsd32_shmid_ds14 oshmbuf;
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int cmd, error;
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cmd = SCARG(uap, cmd);
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if (cmd == IPC_SET) {
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error = copyin(SCARG_P32(uap, buf), &oshmbuf, sizeof(oshmbuf));
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if (error)
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return error;
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netbsd32_shmid_ds14_to_native(&oshmbuf, &shmbuf);
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}
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error = shmctl1(l, SCARG(uap, shmid), cmd,
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(cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL);
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if (error == 0 && cmd == IPC_STAT) {
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native_to_netbsd32_shmid_ds14(&shmbuf, &oshmbuf);
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error = copyout(&oshmbuf, SCARG_P32(uap, buf), sizeof(oshmbuf));
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}
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return error;
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}
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#endif
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#define REQ1 "sysv_ipc,compat_sysv_14,"
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#define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc,"
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#define REQ3 "compat_netbsd32_sysvipc_50"
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#define _PKG_ENTRY(name) \
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{ NETBSD32_SYS_ ## name, 0, (sy_call_t *)name }
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static const struct syscall_package compat_sysvipc_14_syscalls[] = {
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#if defined(SYSVSEM)
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_PKG_ENTRY(compat_14_netbsd32___semctl),
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#endif
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#if defined(SYSVSHM)
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_PKG_ENTRY(compat_14_netbsd32_shmctl),
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#endif
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#if defined(SYSVMSG)
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_PKG_ENTRY(compat_14_netbsd32_msgctl),
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#endif
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{ 0, 0, NULL }
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};
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#define REQ1 "sysv_ipc,compat_sysv_14,"
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#define REQ2 "compat_netbsd32,compat_netbsd32_sysvipc,"
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#define REQ3 "compat_netbsd32_sysvipc_50"
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MODULE(MODULE_CLASS_EXEC, compat_netbsd32_sysvipc_14, REQ1 REQ2 REQ3 );
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static int
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compat_netbsd32_sysvipc_14_modcmd(modcmd_t cmd, void *arg)
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{
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switch (cmd) {
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case MODULE_CMD_INIT:
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return syscall_establish(&emul_netbsd32,
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compat_sysvipc_14_syscalls);
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case MODULE_CMD_FINI:
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return syscall_disestablish(&emul_netbsd32,
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compat_sysvipc_14_syscalls);
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default:
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return ENOTTY;
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}
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}
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#endif /* COMPAT_14 */
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