diff options
Diffstat (limited to 'libparted/fs/reiserfs')
| -rw-r--r-- | libparted/fs/reiserfs/reiserfs.c | 94 | ||||
| -rw-r--r-- | libparted/fs/reiserfs/reiserfs.h | 109 |
2 files changed, 203 insertions, 0 deletions
diff --git a/libparted/fs/reiserfs/reiserfs.c b/libparted/fs/reiserfs/reiserfs.c new file mode 100644 index 0000000..0638f3e --- /dev/null +++ b/libparted/fs/reiserfs/reiserfs.c @@ -0,0 +1,94 @@ +/* + 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); +} diff --git a/libparted/fs/reiserfs/reiserfs.h b/libparted/fs/reiserfs/reiserfs.h new file mode 100644 index 0000000..ee92b62 --- /dev/null +++ b/libparted/fs/reiserfs/reiserfs.h @@ -0,0 +1,109 @@ +/* + libparted - a library for manipulating disk partitions + Copyright (C) 2000, 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/>. +*/ + +#ifndef REISERFS_H +#define REISERFS_H + +#define REISERFS_API_VERSION 0 + +#define REISERFS_SIGNATURE "ReIsErFs" +#define REISER2FS_SIGNATURE "ReIsEr2Fs" +#define REISER3FS_SIGNATURE "ReIsEr3Fs" + +#define DEFAULT_BLOCK_SIZE 4096 + +struct reiserfs_super_block { + uint32_t s_block_count; + uint32_t s_free_blocks; + uint32_t s_root_block; + uint32_t s_journal_block; + uint32_t s_journal_dev; + uint32_t s_orig_journal_size; + uint32_t s_journal_trans_max; + uint32_t s_journal_block_count; + uint32_t s_journal_max_batch; + uint32_t s_journal_max_commit_age; + uint32_t s_journal_max_trans_age; + uint16_t s_blocksize; + uint16_t s_oid_maxsize; + uint16_t s_oid_cursize; + uint16_t s_state; + char s_magic[10]; + uint16_t s_fsck_state; + uint32_t s_hash_function_code; + uint16_t s_tree_height; + uint16_t s_bmap_nr; + uint16_t s_version; + char padding[438]; +}; + +typedef struct reiserfs_super_block reiserfs_super_block_t; + +enum reiserfs_exception_type { + EXCEPTION_INFORMATION = 1, + EXCEPTION_WARNING = 2, + EXCEPTION_ERROR = 3, + EXCEPTION_FATAL = 4, + EXCEPTION_BUG = 5, + EXCEPTION_NO_FEATURE = 6 +}; + +typedef enum reiserfs_exception_type reiserfs_exception_type_t; + +enum reiserfs_exception_option { + EXCEPTION_UNHANDLED = 1 << 0, + EXCEPTION_FIX = 1 << 1, + EXCEPTION_YES = 1 << 2, + EXCEPTION_NO = 1 << 3, + EXCEPTION_OK = 1 << 4, + EXCEPTION_RETRY = 1 << 5, + EXCEPTION_IGNORE = 1 << 6, + EXCEPTION_CANCEL = 1 << 7 +}; + +typedef enum reiserfs_exception_option reiserfs_exception_option_t; + +typedef void (reiserfs_gauge_handler_t)(const char *, unsigned int, void *, int, int, int); + +typedef void * reiserfs_exception_t; +typedef void * reiserfs_gauge_t; +typedef void * reiserfs_fs_t; + +#define FS_FORMAT_3_5 0 +#define FS_FORMAT_3_6 2 + +#define SUPER_OFFSET_IN_BYTES 64*1024 + +#define DEFAULT_JOURNAL_SIZE 8192 + +#define JOURNAL_MIN_SIZE 512 +#define JOURNAL_MIN_TRANS 256 +#define JOURNAL_MAX_TRANS 1024 + +#define JOURNAL_DEF_RATIO 8 +#define JOURNAL_MIN_RATIO 2 +#define JOURNAL_MAX_BATCH 900 +#define JOURNAL_MAX_COMMIT_AGE 30 +#define JOURNAL_MAX_TRANS_AGE 30 + +#define TEA_HASH 1 +#define YURA_HASH 2 +#define R5_HASH 3 + +#endif |