NetBSD-5.0.2/sys/compat/osf1/osf1_mount.c
/* $NetBSD: osf1_mount.c,v 1.45 2008/06/24 11:18:15 ad Exp $ */
/*
* Copyright (c) 1999 Christopher G. Demetriou. 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.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without 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.
*/
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: osf1_mount.c,v 1.45 2008/06/24 11:18:15 ad Exp $");
#if defined(_KERNEL_OPT)
#include "fs_nfs.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/syscallargs.h>
#include <compat/osf1/osf1.h>
#include <compat/osf1/osf1_syscallargs.h>
#include <compat/common/compat_util.h>
#include <compat/osf1/osf1_cvt.h>
#include <net/if.h>
#include <netinet/in.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfs/nfs.h>
#include <nfs/nfsmount.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/ufsmount.h>
#include <machine/vmparam.h>
#define OSF1_MNT_WAIT 0x1
#define OSF1_MNT_NOWAIT 0x2
#define OSF1_MNT_FORCE 0x1
#define OSF1_MNT_NOFORCE 0x2
/* acceptable flags for various calls */
#define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
#define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */
#define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
static int osf1_mount_mfs(struct lwp *, const struct osf1_sys_mount_args *);
static int osf1_mount_nfs(struct lwp *, const struct osf1_sys_mount_args *);
int
osf1_sys_fstatfs(struct lwp *l, const struct osf1_sys_fstatfs_args *uap, register_t *retval)
{
file_t *fp;
struct mount *mp;
struct statvfs *sp;
struct osf1_statfs osfs;
int error;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)))
return (error);
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if ((error = VFS_STATVFS(mp, sp)))
goto out;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
osf1_cvt_statfs_from_native(sp, &osfs);
error = copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
SCARG(uap, len)));
out:
fd_putfile(SCARG(uap, fd));
return (error);
}
int
osf1_sys_getfsstat(struct lwp *l, const struct osf1_sys_getfsstat_args *uap, register_t *retval)
{
struct mount *mp, *nmp;
struct statvfs *sp;
struct osf1_statfs osfs;
char *osf_sfsp;
long count, maxcount, error;
if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS)
return (EINVAL);
maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs);
osf_sfsp = (void *)SCARG(uap, buf);
mutex_enter(&mountlist_lock);
for (count = 0, mp = mountlist.cqh_first; mp != (void *)&mountlist;
mp = nmp) {
if (vfs_busy(mp, &nmp)) {
continue;
}
if (osf_sfsp && count < maxcount) {
sp = &mp->mnt_stat;
/*
* If OSF1_MNT_NOWAIT is specified, do not refresh the
* fsstat cache. OSF1_MNT_WAIT overrides
* OSF1_MNT_NOWAIT.
*/
if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 ||
(SCARG(uap, flags) & OSF1_MNT_WAIT)) &&
(error = VFS_STATVFS(mp, sp)) == 0) {
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
osf1_cvt_statfs_from_native(sp, &osfs);
if ((error = copyout(&osfs, osf_sfsp,
sizeof (struct osf1_statfs)))) {
vfs_unbusy(mp, false, NULL);
return (error);
}
osf_sfsp += sizeof (struct osf1_statfs);
}
}
count++;
vfs_unbusy(mp, false, &nmp);
}
mutex_exit(&mountlist_lock);
if (osf_sfsp && count > maxcount)
*retval = maxcount;
else
*retval = count;
return (0);
}
int
osf1_sys_mount(struct lwp *l, const struct osf1_sys_mount_args *uap, register_t *retval)
{
if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
return (EINVAL);
/* XXX - xlate flags */
switch (SCARG(uap, type)) {
case OSF1_MOUNT_NFS:
return osf1_mount_nfs(l, uap);
break;
case OSF1_MOUNT_MFS:
return osf1_mount_mfs(l, uap);
default:
return (EINVAL);
}
}
int
osf1_sys_statfs(struct lwp *l, const struct osf1_sys_statfs_args *uap, register_t *retval)
{
struct mount *mp;
struct statvfs *sp;
struct osf1_statfs osfs;
int error;
struct nameidata nd;
NDINIT(&nd, LOOKUP, FOLLOW | TRYEMULROOT, UIO_USERSPACE,
SCARG(uap, path));
if ((error = namei(&nd)))
return (error);
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if ((error = VFS_STATVFS(mp, sp)))
return (error);
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
osf1_cvt_statfs_from_native(sp, &osfs);
return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
SCARG(uap, len)));
}
int
osf1_sys_unmount(struct lwp *l, const struct osf1_sys_unmount_args *uap, register_t *retval)
{
struct sys_unmount_args a;
SCARG(&a, path) = SCARG(uap, path);
if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS)
return (EINVAL);
SCARG(&a, flags) = 0;
if ((SCARG(uap, flags) & OSF1_MNT_FORCE) &&
(SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0)
SCARG(&a, flags) |= MNT_FORCE;
return sys_unmount(l, &a, retval);
}
static int
osf1_mount_mfs(struct lwp *l, const struct osf1_sys_mount_args *uap)
{
struct osf1_mfs_args osf_ma;
struct mfs_args bsd_ma;
int error;
register_t dummy;
if ((error = copyin(SCARG(uap, data), &osf_ma, sizeof osf_ma)))
return error;
memset(&bsd_ma, 0, sizeof bsd_ma);
bsd_ma.fspec = osf_ma.name;
/* XXX export args */
bsd_ma.base = osf_ma.base;
bsd_ma.size = osf_ma.size;
return do_sys_mount(l, vfs_getopsbyname("mfs"), NULL, SCARG(uap, path),
SCARG(uap, flags), &bsd_ma, UIO_SYSSPACE, sizeof bsd_ma, &dummy);
}
static int
osf1_mount_nfs(struct lwp *l, const struct osf1_sys_mount_args *uap)
{
struct osf1_nfs_args osf_na;
struct nfs_args bsd_na;
int error;
unsigned long leftovers;
register_t dummy;
if ((error = copyin(SCARG(uap, data), &osf_na, sizeof osf_na)))
return error;
memset(&bsd_na, 0, sizeof bsd_na);
bsd_na.addr = (struct sockaddr *)osf_na.addr;
bsd_na.addrlen = sizeof (struct sockaddr_in);
bsd_na.fh = osf_na.fh;
/* translate flags */
bsd_na.flags = emul_flags_translate(osf1_nfs_mount_flags_xtab,
osf_na.flags, &leftovers);
if (leftovers & OSF1_NFSMNT_HOSTNAME) {
leftovers &= ~OSF1_NFSMNT_HOSTNAME;
bsd_na.hostname = osf_na.hostname;
} else {
/* XXX FILL IN HOST NAME WITH IPADDR? */
}
if (leftovers & OSF1_NFSMNT_TCP) {
leftovers &= ~OSF1_NFSMNT_TCP;
bsd_na.sotype = SOCK_DGRAM;
bsd_na.proto = 0;
} else {
bsd_na.sotype = SOCK_STREAM;
bsd_na.proto = 0;
}
if (leftovers != 0)
return (EINVAL);
/* copy structure elements based on flags */
if (bsd_na.flags & NFSMNT_WSIZE)
bsd_na.wsize = osf_na.wsize;
if (bsd_na.flags & NFSMNT_RSIZE)
bsd_na.rsize = osf_na.rsize;
if (bsd_na.flags & NFSMNT_TIMEO)
bsd_na.timeo = osf_na.timeo;
if (bsd_na.flags & NFSMNT_RETRANS)
bsd_na.retrans = osf_na.retrans;
return do_sys_mount(l, vfs_getopsbyname("nfs"), NULL, SCARG(uap, path),
SCARG(uap, flags), &bsd_na, UIO_SYSSPACE, sizeof bsd_na, &dummy);
return 0;
}