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/*
reiserfs.c -- ReiserFS detection
Copyright (C) 2001-2002, 2007, 2009-2014, 2019-2023 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <uuid/uuid.h>
#include <fcntl.h>
#include <errno.h>
#include <parted/parted.h>
#include <parted/debug.h>
#include <parted/endian.h>
#if ENABLE_NLS
# include <libintl.h>
# define _(String) dgettext (PACKAGE, String)
#else
# define _(String) (String)
#endif
#include "reiserfs.h"
static PedSector reiserfs_super_offset[] = { 128, 16, -1 };
static PedFileSystemType* reiserfs_type;
static PedGeometry *reiserfs_probe(PedGeometry *geom)
{
int i;
PED_ASSERT(geom != NULL);
reiserfs_super_block_t *sb = alloca (geom->dev->sector_size);
for (i = 0; reiserfs_super_offset[i] != -1; i++) {
if (reiserfs_super_offset[i] >= geom->length)
continue;
if (!ped_geometry_read (geom, sb, reiserfs_super_offset[i], 1))
continue;
if (strncmp(REISERFS_SIGNATURE, sb->s_magic,
strlen(REISERFS_SIGNATURE)) == 0
|| strncmp(REISER2FS_SIGNATURE, sb->s_magic,
strlen(REISER2FS_SIGNATURE)) == 0
|| strncmp(REISER3FS_SIGNATURE, sb->s_magic,
strlen(REISER3FS_SIGNATURE)) == 0) {
PedSector block_size;
PedSector block_count;
block_size = PED_LE16_TO_CPU(sb->s_blocksize)
/ geom->dev->sector_size;
block_count = PED_LE32_TO_CPU(sb->s_block_count);
return ped_geometry_new(geom->dev, geom->start,
block_size * block_count);
}
}
return NULL;
}
static PedFileSystemOps reiserfs_simple_ops = {
probe: reiserfs_probe,
};
static PedFileSystemType reiserfs_simple_type = {
next: NULL,
ops: &reiserfs_simple_ops,
name: "reiserfs",
};
void ped_file_system_reiserfs_init()
{
reiserfs_type = &reiserfs_simple_type;
ped_file_system_type_register(reiserfs_type);
}
void ped_file_system_reiserfs_done()
{
ped_file_system_type_unregister(reiserfs_type);
}
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