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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup IMFS
*
* @brief IMFS Add a Node
*/
/*
* Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/imfsimpl.h>
int IMFS_add_node( const char *path, IMFS_jnode_t *node, void *arg )
{
mode_t mode;
rtems_filesystem_eval_path_context_t ctx;
const rtems_filesystem_location_info_t *currentloc;
int eval_flags;
int rv;
mode = node->st_mode;
mode &= ~rtems_filesystem_umask;
switch (mode & S_IFMT) {
case S_IFBLK:
case S_IFCHR:
case S_IFIFO:
case S_IFREG:
case S_IFSOCK:
break;
default:
errno = EINVAL;
return -1;
}
eval_flags = RTEMS_FS_FOLLOW_LINK;
currentloc = rtems_filesystem_eval_path_start( &ctx, path, eval_flags );
if ( IMFS_is_imfs_instance( currentloc ) ) {
eval_flags = RTEMS_FS_MAKE | RTEMS_FS_EXCLUSIVE;
rtems_filesystem_eval_path_set_flags( &ctx, eval_flags );
rtems_filesystem_eval_path_set_path( &ctx, node->name, node->namelen );
rtems_filesystem_eval_path_continue( &ctx );
if ( rtems_filesystem_eval_path_get_token( &ctx ) == node->name ) {
IMFS_assert(
rtems_filesystem_eval_path_get_tokenlen( &ctx ) == node->namelen
);
node = IMFS_initialize_node(
node,
node->control,
node->name,
node->namelen,
mode,
arg
);
if ( node != NULL ) {
IMFS_jnode_t *parent;
currentloc = rtems_filesystem_eval_path_get_currentloc( &ctx );
parent = currentloc->node_access;
IMFS_assert( parent != NULL );
IMFS_add_to_directory( parent, node );
IMFS_mtime_ctime_update( parent );
rv = 0;
} else {
rv = -1;
}
} else {
if ( rtems_filesystem_eval_path_get_token( &ctx ) != NULL ) {
rtems_filesystem_eval_path_error( &ctx, EINVAL );
}
rv = -1;
}
} else {
rtems_filesystem_eval_path_error( &ctx, ENOTSUP );
rv = -1;
}
rtems_filesystem_eval_path_cleanup( &ctx );
return rv;
}
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