NetBSD-5.0.2/sys/compat/linux/common/linux_ipc.c
/* $NetBSD: linux_ipc.c,v 1.51 2008/05/21 11:15:57 njoly Exp $ */
/*-
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden and Eric Haszlakiewicz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux_ipc.c,v 1.51 2008/05/21 11:15:57 njoly Exp $");
#if defined(_KERNEL_OPT)
#include "opt_sysv.h"
#endif
#include <sys/param.h>
#include <sys/shm.h>
#include <sys/sem.h>
#include <sys/msg.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_util.h>
#include <compat/linux/common/linux_ipc.h>
#include <compat/linux/common/linux_msg.h>
#include <compat/linux/common/linux_shm.h>
#include <compat/linux/common/linux_sem.h>
#include <compat/linux/linux_syscallargs.h>
#include <compat/linux/linux_syscall.h>
#include <compat/linux/common/linux_ipccall.h>
#include <compat/linux/common/linux_machdep.h>
/*
* Note: Not all linux architechtures have explicit versions
* of the SYSV* syscalls. On the ones that don't
* we pretend that they are defined anyway. *_args and
* prototypes are defined in individual headers;
* syscalls.master lists those syscalls as NOARGS.
*
* The functions in multiarch are the ones that just need
* the arguments shuffled around and then use the
* normal NetBSD syscall.
*
* Function in multiarch:
* linux_sys_ipc : linux_ipccall.c
* liunx_semop : linux_ipccall.c
* linux_semget : linux_ipccall.c
* linux_msgsnd : linux_ipccall.c
* linux_msgrcv : linux_ipccall.c
* linux_msgget : linux_ipccall.c
* linux_shmdt : linux_ipccall.c
* linux_shmget : linux_ipccall.c
*/
#if defined (SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG)
/*
* Convert between Linux and NetBSD ipc_perm structures. Only the
* order of the fields is different.
*/
void
linux_to_bsd_ipc_perm(struct linux_ipc_perm *lpp, struct ipc_perm *bpp)
{
bpp->_key = lpp->l_key;
bpp->uid = lpp->l_uid;
bpp->gid = lpp->l_gid;
bpp->cuid = lpp->l_cuid;
bpp->cgid = lpp->l_cgid;
bpp->mode = lpp->l_mode;
bpp->_seq = lpp->l_seq;
}
void
linux_to_bsd_ipc64_perm(struct linux_ipc64_perm *lpp, struct ipc_perm *bpp)
{
bpp->_key = lpp->l_key;
bpp->uid = lpp->l_uid;
bpp->gid = lpp->l_gid;
bpp->cuid = lpp->l_cuid;
bpp->cgid = lpp->l_cgid;
bpp->mode = lpp->l_mode;
bpp->_seq = lpp->l_seq;
}
void
bsd_to_linux_ipc_perm(struct ipc_perm *bpp, struct linux_ipc_perm *lpp)
{
lpp->l_key = bpp->_key;
lpp->l_uid = bpp->uid;
lpp->l_gid = bpp->gid;
lpp->l_cuid = bpp->cuid;
lpp->l_cgid = bpp->cgid;
lpp->l_mode = bpp->mode;
lpp->l_seq = bpp->_seq;
}
void
bsd_to_linux_ipc64_perm(struct ipc_perm *bpp, struct linux_ipc64_perm *lpp)
{
lpp->l_key = bpp->_key;
lpp->l_uid = bpp->uid;
lpp->l_gid = bpp->gid;
lpp->l_cuid = bpp->cuid;
lpp->l_cgid = bpp->cgid;
lpp->l_mode = bpp->mode;
lpp->l_seq = bpp->_seq;
}
#endif
#ifdef SYSVSEM
/*
* Semaphore operations. Most constants and structures are the same on
* both systems. Only semctl() needs some extra work.
*/
/*
* Convert between Linux and NetBSD semid_ds structures.
*/
void
bsd_to_linux_semid_ds(struct semid_ds *bs, struct linux_semid_ds *ls)
{
bsd_to_linux_ipc_perm(&bs->sem_perm, &ls->l_sem_perm);
ls->l_sem_otime = bs->sem_otime;
ls->l_sem_ctime = bs->sem_ctime;
ls->l_sem_nsems = bs->sem_nsems;
ls->l_sem_base = bs->_sem_base;
}
void
bsd_to_linux_semid64_ds(struct semid_ds *bs, struct linux_semid64_ds *ls)
{
bsd_to_linux_ipc64_perm(&bs->sem_perm, &ls->l_sem_perm);
ls->l_sem_otime = bs->sem_otime;
ls->l_sem_ctime = bs->sem_ctime;
ls->l_sem_nsems = bs->sem_nsems;
}
void
linux_to_bsd_semid_ds(struct linux_semid_ds *ls, struct semid_ds *bs)
{
linux_to_bsd_ipc_perm(&ls->l_sem_perm, &bs->sem_perm);
bs->sem_otime = ls->l_sem_otime;
bs->sem_ctime = ls->l_sem_ctime;
bs->sem_nsems = ls->l_sem_nsems;
bs->_sem_base = ls->l_sem_base;
}
void
linux_to_bsd_semid64_ds(struct linux_semid64_ds *ls, struct semid_ds *bs)
{
linux_to_bsd_ipc64_perm(&ls->l_sem_perm, &bs->sem_perm);
bs->sem_otime = ls->l_sem_otime;
bs->sem_ctime = ls->l_sem_ctime;
bs->sem_nsems = ls->l_sem_nsems;
}
/*
* Most of this can be handled by directly passing the arguments on; we
* just need to frob the `cmd' and convert the semid_ds and semun.
*/
int
linux_sys_semctl(struct lwp *l, const struct linux_sys_semctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) semid;
syscallarg(int) semnum;
syscallarg(int) cmd;
syscallarg(union linux_semun) arg;
} */
struct semid_ds sembuf;
struct linux_semid_ds lsembuf;
struct linux_semid64_ds lsembuf64;
union __semun semun;
int cmd, lcmd, error;
void *pass_arg = NULL;
lcmd = SCARG(uap, cmd);
#ifdef LINUX_IPC_FORCE64
if (lcmd == LINUX_IPC_STAT || lcmd == LINUX_IPC_SET)
lcmd |= LINUX_IPC_64;
#endif
switch (lcmd) {
case LINUX_IPC_SET:
error = copyin(SCARG(uap, arg).l_buf, &lsembuf,
sizeof(lsembuf));
if (error)
return (error);
linux_to_bsd_semid_ds(&lsembuf, &sembuf);
pass_arg = &sembuf;
cmd = IPC_SET;
break;
case LINUX_IPC_SET | LINUX_IPC_64:
error = copyin(SCARG(uap, arg).l_buf, &lsembuf64,
sizeof(lsembuf64));
if (error)
return (error);
linux_to_bsd_semid64_ds(&lsembuf64, &sembuf);
pass_arg = &sembuf;
cmd = IPC_SET;
break;
case LINUX_IPC_STAT:
case LINUX_IPC_STAT | LINUX_IPC_64:
pass_arg = &sembuf;
cmd = IPC_STAT;
break;
case LINUX_IPC_RMID:
cmd = IPC_RMID;
break;
case LINUX_GETVAL:
cmd = GETVAL;
break;
case LINUX_GETPID:
cmd = GETPID;
break;
case LINUX_GETNCNT:
cmd = GETNCNT;
break;
case LINUX_GETZCNT:
cmd = GETZCNT;
break;
case LINUX_GETALL:
pass_arg = &semun;
semun.array = SCARG(uap, arg).l_array;
cmd = GETALL;
break;
case LINUX_SETVAL:
pass_arg = &semun;
semun.val = SCARG(uap, arg).l_val;
cmd = SETVAL;
break;
case LINUX_SETALL:
pass_arg = &semun;
semun.array = SCARG(uap, arg).l_array;
cmd = SETALL;
break;
default:
return (EINVAL);
}
error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
pass_arg, retval);
if (error)
return error;
switch (lcmd) {
case LINUX_IPC_STAT:
bsd_to_linux_semid_ds(&sembuf, &lsembuf);
error = copyout(&lsembuf, SCARG(uap, arg).l_buf,
sizeof(lsembuf));
break;
case LINUX_IPC_STAT | LINUX_IPC_64:
bsd_to_linux_semid64_ds(&sembuf, &lsembuf64);
error = copyout(&lsembuf64, SCARG(uap, arg).l_buf,
sizeof(lsembuf64));
break;
default:
break;
}
return (error);
}
#endif /* SYSVSEM */
#ifdef SYSVMSG
void
linux_to_bsd_msqid_ds(struct linux_msqid_ds *lmp, struct msqid_ds *bmp)
{
linux_to_bsd_ipc_perm(&lmp->l_msg_perm, &bmp->msg_perm);
bmp->_msg_first = lmp->l_msg_first;
bmp->_msg_last = lmp->l_msg_last;
bmp->_msg_cbytes = lmp->l_msg_cbytes;
bmp->msg_qnum = lmp->l_msg_qnum;
bmp->msg_qbytes = lmp->l_msg_qbytes;
bmp->msg_lspid = lmp->l_msg_lspid;
bmp->msg_lrpid = lmp->l_msg_lrpid;
bmp->msg_stime = lmp->l_msg_stime;
bmp->msg_rtime = lmp->l_msg_rtime;
bmp->msg_ctime = lmp->l_msg_ctime;
}
void
linux_to_bsd_msqid64_ds(struct linux_msqid64_ds *lmp, struct msqid_ds *bmp)
{
linux_to_bsd_ipc64_perm(&lmp->l_msg_perm, &bmp->msg_perm);
bmp->msg_stime = lmp->l_msg_stime;
bmp->msg_rtime = lmp->l_msg_rtime;
bmp->msg_ctime = lmp->l_msg_ctime;
bmp->_msg_cbytes = lmp->l_msg_cbytes;
bmp->msg_qnum = lmp->l_msg_qnum;
bmp->msg_qbytes = lmp->l_msg_qbytes;
bmp->msg_lspid = lmp->l_msg_lspid;
bmp->msg_lrpid = lmp->l_msg_lrpid;
}
void
bsd_to_linux_msqid_ds(struct msqid_ds *bmp, struct linux_msqid_ds *lmp)
{
bsd_to_linux_ipc_perm(&bmp->msg_perm, &lmp->l_msg_perm);
lmp->l_msg_first = bmp->_msg_first;
lmp->l_msg_last = bmp->_msg_last;
lmp->l_msg_cbytes = bmp->_msg_cbytes;
lmp->l_msg_qnum = bmp->msg_qnum;
lmp->l_msg_qbytes = bmp->msg_qbytes;
lmp->l_msg_lspid = bmp->msg_lspid;
lmp->l_msg_lrpid = bmp->msg_lrpid;
lmp->l_msg_stime = bmp->msg_stime;
lmp->l_msg_rtime = bmp->msg_rtime;
lmp->l_msg_ctime = bmp->msg_ctime;
}
void
bsd_to_linux_msqid64_ds(struct msqid_ds *bmp, struct linux_msqid64_ds *lmp)
{
bsd_to_linux_ipc64_perm(&bmp->msg_perm, &lmp->l_msg_perm);
lmp->l_msg_stime = bmp->msg_stime;
lmp->l_msg_rtime = bmp->msg_rtime;
lmp->l_msg_ctime = bmp->msg_ctime;
lmp->l_msg_cbytes = bmp->_msg_cbytes;
lmp->l_msg_qnum = bmp->msg_qnum;
lmp->l_msg_qbytes = bmp->msg_qbytes;
lmp->l_msg_lspid = bmp->msg_lspid;
lmp->l_msg_lrpid = bmp->msg_lrpid;
}
int
linux_sys_msgctl(struct lwp *l, const struct linux_sys_msgctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) msqid;
syscallarg(int) cmd;
syscallarg(struct linux_msqid_ds *) buf;
} */
struct msqid_ds bm, *bmp = NULL;
struct linux_msqid_ds lm;
struct linux_msqid64_ds lm64;
int cmd, lcmd, error;
lcmd = SCARG(uap, cmd);
#ifdef LINUX_IPC_FORCE64
if (lcmd == LINUX_IPC_STAT || lcmd == LINUX_IPC_SET)
lcmd |= LINUX_IPC_64;
#endif
switch (lcmd) {
case LINUX_IPC_STAT:
case LINUX_IPC_STAT|LINUX_IPC_64:
cmd = IPC_STAT;
bmp = &bm;
break;
case LINUX_IPC_SET:
if ((error = copyin(SCARG(uap, buf), &lm, sizeof lm)))
return error;
linux_to_bsd_msqid_ds(&lm, &bm);
cmd = IPC_SET;
bmp = &bm;
break;
case LINUX_IPC_SET|LINUX_IPC_64:
if ((error = copyin(SCARG(uap, buf), &lm64, sizeof lm64)))
return error;
linux_to_bsd_msqid64_ds(&lm64, &bm);
cmd = IPC_SET;
bmp = &bm;
break;
case LINUX_IPC_RMID:
cmd = IPC_RMID;
break;
default:
return EINVAL;
}
if ((error = msgctl1(l, SCARG(uap, msqid), cmd, bmp)))
return error;
switch (lcmd) {
case LINUX_IPC_STAT:
bsd_to_linux_msqid_ds(&bm, &lm);
error = copyout(&lm, SCARG(uap, buf), sizeof lm);
break;
case LINUX_IPC_STAT|LINUX_IPC_64:
bsd_to_linux_msqid64_ds(&bm, &lm64);
error = copyout(&lm64, SCARG(uap, buf), sizeof lm64);
break;
default:
break;
}
return error;
}
#endif /* SYSVMSG */
#ifdef SYSVSHM
/*
* shmget(2). Just make sure the Linux-compatible shmat() semantics
* is enabled for the segment, so that shmat() succeeds even when
* the segment would be removed.
*/
int
linux_sys_shmget(struct lwp *l, const struct linux_sys_shmget_args *uap, register_t *retval)
{
/* {
syscallarg(key_t) key;
syscallarg(size_t) size;
syscallarg(int) shmflg;
} */
struct sys_shmget_args bsd_ua;
SCARG(&bsd_ua, key) = SCARG(uap, key);
SCARG(&bsd_ua, size) = SCARG(uap, size);
SCARG(&bsd_ua, shmflg) = SCARG(uap, shmflg) | _SHM_RMLINGER;
return sys_shmget(l, &bsd_ua, retval);
}
/*
* shmat(2). Very straightforward, except that Linux passes a pointer
* in which the return value is to be passed. This is subsequently
* handled by libc, apparently.
*/
#ifndef __amd64__
int
linux_sys_shmat(struct lwp *l, const struct linux_sys_shmat_args *uap, register_t *retval)
{
/* {
syscallarg(int) shmid;
syscallarg(void *) shmaddr;
syscallarg(int) shmflg;
syscallarg(u_long *) raddr;
} */
int error;
if ((error = sys_shmat(l, (const void *)uap, retval)))
return error;
if ((error = copyout(&retval[0], SCARG(uap, raddr), sizeof retval[0])))
return error;
retval[0] = 0;
return 0;
}
#endif /* __amd64__ */
/*
* Convert between Linux and NetBSD shmid_ds structures.
* The order of the fields is once again the difference, and
* we also need a place to store the internal data pointer
* in, which is unfortunately stored in this structure.
*
* We abuse a Linux internal field for that.
*/
void
linux_to_bsd_shmid_ds(struct linux_shmid_ds *lsp, struct shmid_ds *bsp)
{
linux_to_bsd_ipc_perm(&lsp->l_shm_perm, &bsp->shm_perm);
bsp->shm_segsz = lsp->l_shm_segsz;
bsp->shm_lpid = lsp->l_shm_lpid;
bsp->shm_cpid = lsp->l_shm_cpid;
bsp->shm_nattch = lsp->l_shm_nattch;
bsp->shm_atime = lsp->l_shm_atime;
bsp->shm_dtime = lsp->l_shm_dtime;
bsp->shm_ctime = lsp->l_shm_ctime;
bsp->_shm_internal = lsp->l_private2; /* XXX Oh well. */
}
void
linux_to_bsd_shmid64_ds(struct linux_shmid64_ds *lsp, struct shmid_ds *bsp)
{
linux_to_bsd_ipc64_perm(&lsp->l_shm_perm, &bsp->shm_perm);
bsp->shm_segsz = lsp->l_shm_segsz;
bsp->shm_lpid = lsp->l_shm_lpid;
bsp->shm_cpid = lsp->l_shm_cpid;
bsp->shm_nattch = lsp->l_shm_nattch;
bsp->shm_atime = lsp->l_shm_atime;
bsp->shm_dtime = lsp->l_shm_dtime;
bsp->shm_ctime = lsp->l_shm_ctime;
bsp->_shm_internal = (void*)lsp->l___unused5; /* XXX Oh well. */
}
void
bsd_to_linux_shmid_ds(struct shmid_ds *bsp, struct linux_shmid_ds *lsp)
{
bsd_to_linux_ipc_perm(&bsp->shm_perm, &lsp->l_shm_perm);
lsp->l_shm_segsz = bsp->shm_segsz;
lsp->l_shm_lpid = bsp->shm_lpid;
lsp->l_shm_cpid = bsp->shm_cpid;
lsp->l_shm_nattch = bsp->shm_nattch;
lsp->l_shm_atime = bsp->shm_atime;
lsp->l_shm_dtime = bsp->shm_dtime;
lsp->l_shm_ctime = bsp->shm_ctime;
lsp->l_private2 = bsp->_shm_internal; /* XXX */
}
void
bsd_to_linux_shmid64_ds(struct shmid_ds *bsp, struct linux_shmid64_ds *lsp)
{
bsd_to_linux_ipc64_perm(&bsp->shm_perm, &lsp->l_shm_perm);
lsp->l_shm_segsz = bsp->shm_segsz;
lsp->l_shm_lpid = bsp->shm_lpid;
lsp->l_shm_cpid = bsp->shm_cpid;
lsp->l_shm_nattch = bsp->shm_nattch;
lsp->l_shm_atime = bsp->shm_atime;
lsp->l_shm_dtime = bsp->shm_dtime;
lsp->l_shm_ctime = bsp->shm_ctime;
lsp->l___unused5 = (u_long)bsp->_shm_internal; /* XXX */
}
/*
* shmctl.
*
* The usual structure conversion and massaging is done.
*/
int
linux_sys_shmctl(struct lwp *l, const struct linux_sys_shmctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) shmid;
syscallarg(int) cmd;
syscallarg(struct linux_shmid_ds *) buf;
} */
struct shmid_ds bs;
struct linux_shmid_ds ls;
struct linux_shmid64_ds ls64;
struct linux_shminfo64 lsi64;
struct linux_shm_info lsi;
int error, i, cmd, shmid;
shmid = SCARG(uap, shmid);
cmd = SCARG(uap, cmd);
#ifdef LINUX_IPC_FORCE64
if (cmd == LINUX_IPC_STAT || cmd == LINUX_SHM_STAT ||
cmd == LINUX_IPC_SET)
cmd |= LINUX_IPC_64;
#endif
switch (cmd) {
case LINUX_IPC_STAT:
case LINUX_SHM_STAT:
if (cmd == LINUX_SHM_STAT) {
shmid = IXSEQ_TO_IPCID(shmid, shmsegs[shmid].shm_perm);
retval[0] = shmid;
}
error = shmctl1(l, shmid, IPC_STAT, &bs);
if (error != 0)
return error;
bsd_to_linux_shmid_ds(&bs, &ls);
return copyout(&ls, SCARG(uap, buf), sizeof ls);
case LINUX_IPC_STAT | LINUX_IPC_64:
case LINUX_SHM_STAT | LINUX_IPC_64:
if (cmd == (LINUX_SHM_STAT | LINUX_IPC_64)) {
shmid = IXSEQ_TO_IPCID(shmid, shmsegs[shmid].shm_perm);
retval[0] = shmid;
}
error = shmctl1(l, shmid, IPC_STAT, &bs);
if (error != 0)
return error;
bsd_to_linux_shmid64_ds(&bs, &ls64);
return copyout(&ls64, SCARG(uap, buf), sizeof ls64);
case LINUX_IPC_SET:
if ((error = copyin(SCARG(uap, buf), &ls, sizeof ls)))
return error;
linux_to_bsd_shmid_ds(&ls, &bs);
return shmctl1(l, shmid, IPC_SET, &bs);
case LINUX_IPC_SET | LINUX_IPC_64:
if ((error = copyin(SCARG(uap, buf), &ls64, sizeof ls64)))
return error;
linux_to_bsd_shmid64_ds(&ls64, &bs);
return shmctl1(l, shmid, IPC_SET, &bs);
case LINUX_IPC_RMID:
return shmctl1(l, shmid, IPC_RMID, NULL);
case LINUX_SHM_LOCK:
return shmctl1(l, shmid, SHM_LOCK, NULL);
case LINUX_SHM_UNLOCK:
return shmctl1(l, shmid, SHM_UNLOCK, NULL);
case LINUX_IPC_INFO:
memset(&lsi64, 0, sizeof lsi64);
lsi64.l_shmmax = shminfo.shmmax;
lsi64.l_shmmin = shminfo.shmmin;
lsi64.l_shmmni = shminfo.shmmni;
lsi64.l_shmseg = shminfo.shmseg;
lsi64.l_shmall = shminfo.shmall;
for (i = shminfo.shmmni - 1; i > 0; i--)
if (shmsegs[i].shm_perm.mode & SHMSEG_ALLOCATED)
break;
retval[0] = i;
return copyout(&lsi64, SCARG(uap, buf), sizeof lsi64);
case LINUX_SHM_INFO:
(void)memset(&lsi, 0, sizeof lsi);
lsi.l_used_ids = shm_nused;
for (i = 0; i < shminfo.shmmni; i++)
if (shmsegs[i].shm_perm.mode & SHMSEG_ALLOCATED)
lsi.l_shm_tot +=
round_page(shmsegs[i].shm_segsz) /
uvmexp.pagesize;
lsi.l_shm_rss = 0;
lsi.l_shm_swp = 0;
lsi.l_swap_attempts = 0;
lsi.l_swap_successes = 0;
for (i = shminfo.shmmni - 1; i > 0; i--)
if (shmsegs[i].shm_perm.mode & SHMSEG_ALLOCATED)
break;
retval[0] = i;
return copyout(&lsi, SCARG(uap, buf), sizeof lsi);
default:
#ifdef DEBUG
printf("linux_sys_shmctl cmd %d\n", SCARG(uap, cmd));
#endif
return EINVAL;
}
}
#endif /* SYSVSHM */