/* $NetBSD: amfs_direct.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */
/*
* Copyright (c) 1997-2014 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. 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.
*
*
* File: am-utils/amd/amfs_direct.c
*
*/
/*
* Direct file system
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amd.h>
/****************************************************************************
*** FORWARD DEFINITIONS ***
****************************************************************************/
static am_node *amfs_direct_readlink(am_node *mp, int *error_return);
/****************************************************************************
*** OPS STRUCTURES ***
****************************************************************************/
am_ops amfs_direct_ops =
{
"direct",
amfs_generic_match,
0, /* amfs_direct_init */
amfs_toplvl_mount,
amfs_toplvl_umount,
amfs_generic_lookup_child,
amfs_generic_mount_child,
amfs_error_readdir,
amfs_direct_readlink,
amfs_generic_mounted,
0, /* amfs_direct_umounted */
amfs_generic_find_srvr,
0, /* amfs_direct_get_wchan */
FS_DIRECT | FS_MKMNT | FS_NOTIMEOUT | FS_BACKGROUND | FS_AMQINFO,
#ifdef HAVE_FS_AUTOFS
AUTOFS_DIRECT_FS_FLAGS,
#endif /* HAVE_FS_AUTOFS */
};
/****************************************************************************
*** FUNCTIONS ***
****************************************************************************/
static am_node *
amfs_direct_readlink(am_node *mp, int *error_return)
{
am_node *xp;
int rc = 0;
xp = next_nonerror_node(mp->am_child);
if (!xp) {
if (!mp->am_al->al_mnt->mf_private)
amfs_mkcacheref(mp->am_al->al_mnt);
xp = amfs_generic_lookup_child(mp, mp->am_path + 1, &rc, VLOOK_CREATE);
if (xp && rc < 0)
xp = amfs_generic_mount_child(xp, &rc);
}
if (xp) {
new_ttl(xp); /* (7/12/89) from Rein Tollevik */
return xp;
}
if (amd_state == Finishing)
rc = ENOENT;
*error_return = rc;
return 0;
}
