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diff --git a/sys/i386/linux/linux_ipc.c b/sys/i386/linux/linux_ipc.c
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+/*-
+ * Copyright (c) 1994-1995 Søren Schmidt
+ * All rights reserved.
+ *
+ * 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
+ * in this position and unchanged.
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software withough specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ * $Id: linux_ipc.c,v 1.2 1995/06/07 21:27:57 sos Exp $
+ */
+
+#include <i386/linux/linux.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/exec.h>
+#include <sys/proc.h>
+#include <sys/sem.h>
+#include <sys/shm.h>
+#include <sys/msg.h>
+
+#include <vm/vm.h>
+
+struct linux_ipc_perm {
+ linux_key_t key;
+ unsigned short uid;
+ unsigned short gid;
+ unsigned short cuid;
+ unsigned short cgid;
+ unsigned short mode;
+ unsigned short seq;
+};
+
+static void
+linux_to_bsd_ipc_perm(struct linux_ipc_perm *lpp, struct ipc_perm *bpp)
+{
+ bpp->key = lpp->key;
+ bpp->uid = lpp->uid;
+ bpp->gid = lpp->gid;
+ bpp->cuid = lpp->cuid;
+ bpp->cgid = lpp->cgid;
+ bpp->mode = lpp->mode;
+ bpp->seq = lpp->seq;
+}
+
+
+static void
+bsd_to_linux_ipc_perm(struct ipc_perm *bpp, struct linux_ipc_perm *lpp)
+{
+ lpp->key = bpp->key;
+ lpp->uid = bpp->uid;
+ lpp->gid = bpp->gid;
+ lpp->cuid = bpp->cuid;
+ lpp->cgid = bpp->cgid;
+ lpp->mode = bpp->mode;
+ lpp->seq = bpp->seq;
+}
+
+struct linux_shmid_ds {
+ struct linux_ipc_perm shm_perm;
+ int shm_segsz;
+ linux_time_t shm_atime;
+ linux_time_t shm_dtime;
+ linux_time_t shm_ctime;
+ ushort shm_cpid;
+ ushort shm_lpid;
+ short shm_nattch;
+ ushort private1;
+ void *private2;
+ void *private3;
+};
+
+static void
+linux_to_bsd_shmid_ds(struct linux_shmid_ds *lsp, struct shmid_ds *bsp)
+{
+ linux_to_bsd_ipc_perm(&lsp->shm_perm, &bsp->shm_perm);
+ bsp->shm_segsz = lsp->shm_segsz;
+ bsp->shm_lpid = lsp->shm_lpid;
+ bsp->shm_cpid = lsp->shm_cpid;
+ bsp->shm_nattch = lsp->shm_nattch;
+ bsp->shm_atime = lsp->shm_atime;
+ bsp->shm_dtime = lsp->shm_dtime;
+ bsp->shm_ctime = lsp->shm_ctime;
+ bsp->shm_internal = lsp->private3; /* this goes (yet) SOS */
+}
+
+static void
+bsd_to_linux_shmid_ds(struct shmid_ds *bsp, struct linux_shmid_ds *lsp)
+{
+ bsd_to_linux_ipc_perm(&bsp->shm_perm, &lsp->shm_perm);
+ lsp->shm_segsz = bsp->shm_segsz;
+ lsp->shm_lpid = bsp->shm_lpid;
+ lsp->shm_cpid = bsp->shm_cpid;
+ lsp->shm_nattch = bsp->shm_nattch;
+ lsp->shm_atime = bsp->shm_atime;
+ lsp->shm_dtime = bsp->shm_dtime;
+ lsp->shm_ctime = bsp->shm_ctime;
+ lsp->private3 = bsp->shm_internal; /* this goes (yet) SOS */
+}
+
+struct linux_ipc_args {
+ int what;
+ int arg1;
+ int arg2;
+ int arg3;
+ caddr_t ptr;
+};
+
+int
+linux_semop(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_semget(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_semctl(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_msgsnd(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_msgrcv(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_msgget(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_msgctl(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ return ENOSYS;
+}
+
+int
+linux_shmat(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ struct shmat_args {
+ int shmid;
+ void *shmaddr;
+ int shmflg;
+ } bsd_args;
+ int error;
+
+ bsd_args.shmid = args->arg1;
+ bsd_args.shmaddr = args->ptr;
+ bsd_args.shmflg = args->arg2;
+ if ((error = shmat(p, &bsd_args, retval)))
+ return error;
+ if ((error = copyout(retval, (caddr_t)args->arg3, sizeof(int))))
+ return error;
+ retval[0] = 0;
+ return 0;
+}
+
+int
+linux_shmdt(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ struct shmdt_args {
+ void *shmaddr;
+ } bsd_args;
+
+ bsd_args.shmaddr = args->ptr;
+ return shmdt(p, &bsd_args, retval);
+}
+
+int
+linux_shmget(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ struct shmget_args {
+ key_t key;
+ int size;
+ int shmflg;
+ } bsd_args;
+
+ bsd_args.key = args->arg1;
+ bsd_args.size = args->arg2;
+ bsd_args.shmflg = args->arg3;
+ return shmget(p, &bsd_args, retval);
+}
+
+int
+linux_shmctl(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ struct shmid_ds bsd_shmid;
+ struct linux_shmid_ds linux_shmid;
+ struct shmctl_args {
+ int shmid;
+ int cmd;
+ struct shmid_ds *buf;
+ } bsd_args;
+ int error;
+
+ switch (args->arg2) {
+ case LINUX_IPC_STAT:
+ bsd_args.shmid = args->arg1;
+ bsd_args.cmd = IPC_STAT;
+ bsd_args.buf = (struct shmid_ds*)ua_alloc_init(sizeof(struct shmid_ds));
+ if ((error = shmctl(p, &bsd_args, retval)))
+ return error;
+ if ((error = copyin((caddr_t)&bsd_shmid, (caddr_t)bsd_args.buf,
+ sizeof(struct shmid_ds))))
+ return error;
+ bsd_to_linux_shmid_ds(&bsd_shmid, &linux_shmid);
+ return copyout((caddr_t)&linux_shmid, args->ptr, sizeof(linux_shmid));
+
+ case LINUX_IPC_SET:
+ if ((error = copyin(args->ptr, (caddr_t)&linux_shmid,
+ sizeof(linux_shmid))))
+ return error;
+ linux_to_bsd_shmid_ds(&linux_shmid, &bsd_shmid);
+ bsd_args.buf = (struct shmid_ds*)ua_alloc_init(sizeof(struct shmid_ds));
+ if ((error = copyout((caddr_t)&bsd_shmid, (caddr_t)bsd_args.buf,
+ sizeof(struct shmid_ds))))
+ return error;
+ bsd_args.shmid = args->arg1;
+ bsd_args.cmd = IPC_SET;
+ return shmctl(p, &bsd_args, retval);
+
+ case LINUX_IPC_RMID:
+ bsd_args.shmid = args->arg1;
+ bsd_args.cmd = IPC_RMID;
+ if ((error = copyin(args->ptr, (caddr_t)&linux_shmid,
+ sizeof(linux_shmid))))
+ return error;
+ linux_to_bsd_shmid_ds(&linux_shmid, &bsd_shmid);
+ bsd_args.buf = (struct shmid_ds*)ua_alloc_init(sizeof(struct shmid_ds));
+ if ((error = copyout((caddr_t)&bsd_shmid, (caddr_t)bsd_args.buf,
+ sizeof(struct shmid_ds))))
+ return error;
+ return shmctl(p, &bsd_args, retval);
+
+ case LINUX_IPC_INFO:
+ case LINUX_SHM_STAT:
+ case LINUX_SHM_INFO:
+ case LINUX_SHM_LOCK:
+ case LINUX_SHM_UNLOCK:
+ default:
+ uprintf("LINUX: 'ipc' typ=%d not implemented\n", args->what);
+ return EINVAL;
+ }
+}
+
+int
+linux_ipc(struct proc *p, struct linux_ipc_args *args, int *retval)
+{
+ switch (args->what) {
+ case LINUX_SEMOP:
+ return linux_semop(p, args, retval);
+ case LINUX_SEMGET:
+ return linux_semget(p, args, retval);
+ case LINUX_SEMCTL:
+ return linux_semctl(p, args, retval);
+ case LINUX_MSGSND:
+ return linux_msgsnd(p, args, retval);
+ case LINUX_MSGRCV:
+ return linux_msgrcv(p, args, retval);
+ case LINUX_MSGGET:
+ return linux_msgget(p, args, retval);
+ case LINUX_MSGCTL:
+ return linux_msgctl(p, args, retval);
+ case LINUX_SHMAT:
+ return linux_shmat(p, args, retval);
+ case LINUX_SHMDT:
+ return linux_shmdt(p, args, retval);
+ case LINUX_SHMGET:
+ return linux_shmget(p, args, retval);
+ case LINUX_SHMCTL:
+ return linux_shmctl(p, args, retval);
+ default:
+ uprintf("LINUX: 'ipc' typ=%d not implemented\n", args->what);
+ return ENOSYS;
+ }
+}
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