NetBSD/dist/am-utils/amd/ops_efs.c

172 lines
4.7 KiB
C

/* $NetBSD: ops_efs.c,v 1.1.1.6 2003/03/09 01:13:15 christos Exp $ */
/*
* Copyright (c) 1997-2003 Erez Zadok
* Copyright (c) 1990 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* 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 acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*
* Id: ops_efs.c,v 1.13 2002/12/27 22:43:51 ezk Exp
*
*/
/*
* Irix UN*X file system: EFS (Extent File System)
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amd.h>
/* forward declarations */
static char *efs_match(am_opts *fo);
static int efs_mount(am_node *am, mntfs *mf);
static int efs_umount(am_node *am, mntfs *mf);
/*
* Ops structure
*/
am_ops efs_ops =
{
"efs",
efs_match,
0, /* efs_init */
efs_mount,
efs_umount,
amfs_error_lookup_child,
amfs_error_mount_child,
amfs_error_readdir,
0, /* efs_readlink */
0, /* efs_mounted */
0, /* efs_umounted */
find_amfs_auto_srvr,
FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
#ifdef HAVE_FS_AUTOFS
AUTOFS_EFS_FS_FLAGS,
#endif /* HAVE_FS_AUTOFS */
};
/*
* EFS needs local filesystem and device.
*/
static char *
efs_match(am_opts *fo)
{
if (!fo->opt_dev) {
plog(XLOG_USER, "efs: no device specified");
return 0;
}
dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
/*
* Determine magic cookie to put in mtab
*/
return strdup(fo->opt_dev);
}
static int
mount_efs(char *mntdir, char *real_mntdir, char *fs_name, char *opts, int on_autofs)
{
efs_args_t efs_args;
mntent_t mnt;
int flags;
/*
* Figure out the name of the file system type.
*/
MTYPE_TYPE type = MOUNT_TYPE_EFS;
memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */
/*
* Fill in the mount structure
*/
memset((voidp) &mnt, 0, sizeof(mnt));
mnt.mnt_dir = mntdir;
mnt.mnt_fsname = fs_name;
mnt.mnt_type = MNTTAB_TYPE_EFS;
mnt.mnt_opts = opts;
flags = compute_mount_flags(&mnt);
#ifdef HAVE_FS_AUTOFS
if (on_autofs)
flags |= autofs_compute_mount_flags(&mnt);
#endif /* HAVE_FS_AUTOFS */
#ifdef HAVE_EFS_ARGS_T_FLAGS
efs_args.flags = 0; /* XXX: fix this to correct flags */
#endif /* HAVE_EFS_ARGS_T_FLAGS */
#ifdef HAVE_EFS_ARGS_T_FSPEC
efs_args.fspec = fs_name;
#endif /* HAVE_EFS_ARGS_T_FSPEC */
/*
* Call generic mount routine
*/
return mount_fs2(&mnt, real_mntdir, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name);
}
static int
efs_mount(am_node *am, mntfs *mf)
{
int error;
error = mount_efs(mf->mf_mount, mf->mf_real_mount, mf->mf_info, mf->mf_mopts,
am->am_flags & AMF_AUTOFS);
if (error) {
errno = error;
plog(XLOG_ERROR, "mount_efs: %m");
return error;
}
return 0;
}
static int
efs_umount(am_node *am, mntfs *mf)
{
return UMOUNT_FS(mf->mf_mount, mf->mf_real_mount, mnttab_file_name);
}