/*
* ext2fs.h --- ext2fs
- *
+ *
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
*
* %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
* %End-Header%
*/
#ifndef _EXT2FS_EXT2FS_H
#define _EXT2FS_EXT2FS_H
+#ifdef __GNUC__
+#define EXT2FS_ATTR(x) __attribute__(x)
+#else
+#define EXT2FS_ATTR(x)
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#endif
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#if EXT2_FLAT_INCLUDES
#include "e2_types.h"
+#include "ext2_fs.h"
+#include "ext3_extents.h"
#else
#include <ext2fs/ext2_types.h>
+#include <ext2fs/ext2_fs.h>
+#include <ext2fs/ext3_extents.h>
#endif /* EXT2_FLAT_INCLUDES */
typedef __u32 ext2_ino_t;
typedef __u32 blk_t;
+typedef __u64 blk64_t;
typedef __u32 dgrp_t;
typedef __u32 ext2_off_t;
typedef __s64 e2_blkcnt_t;
+typedef __u32 ext2_dirhash_t;
#if EXT2_FLAT_INCLUDES
#include "com_err.h"
#include "ext2_io.h"
#include "ext2_err.h"
+#include "ext2_ext_attr.h"
#else
#include <et/com_err.h>
#include <ext2fs/ext2_io.h>
#include <ext2fs/ext2_err.h>
+#include <ext2fs/ext2_ext_attr.h>
#endif
/*
typedef struct struct_ext2_filsys *ext2_filsys;
-struct ext2fs_struct_generic_bitmap {
- errcode_t magic;
- ext2_filsys fs;
- __u32 start, end;
- __u32 real_end;
- char * description;
- char * bitmap;
- errcode_t base_error_code;
- __u32 reserved[7];
-};
-
#define EXT2FS_MARK_ERROR 0
#define EXT2FS_UNMARK_ERROR 1
#define EXT2FS_TEST_ERROR 2
typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
-#ifdef EXT2_DYNAMIC_REV
#define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
-#else
-#define EXT2_FIRST_INODE(s) EXT2_FIRST_INO
-#define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
-#endif
+
/*
- * badblocks list definitions
+ * Badblocks list definitions
*/
-typedef struct ext2_struct_badblocks_list *ext2_badblocks_list;
-typedef struct ext2_struct_badblocks_iterate *ext2_badblocks_iterate;
+typedef struct ext2_struct_u32_list *ext2_badblocks_list;
+typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
+
+typedef struct ext2_struct_u32_list *ext2_u32_list;
+typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
/* old */
-typedef struct ext2_struct_badblocks_list *badblocks_list;
-typedef struct ext2_struct_badblocks_iterate *badblocks_iterate;
+typedef struct ext2_struct_u32_list *badblocks_list;
+typedef struct ext2_struct_u32_iterate *badblocks_iterate;
#define BADBLOCKS_FLAG_DIRTY 1
#define EXT2_FLAG_SUPER_ONLY 0x800
#define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
#define EXT2_FLAG_IMAGE_FILE 0x2000
+#define EXT2_FLAG_EXCLUSIVE 0x4000
+#define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
+#define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
/*
* Special flag in the ext2 inode i_flag field that means that this is
int flags;
char * device_name;
struct ext2_super_block * super;
- int blocksize;
+ unsigned int blocksize;
int fragsize;
dgrp_t group_desc_count;
unsigned long desc_blocks;
struct ext2_inode *inode);
errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode);
- badblocks_list badblocks;
+ ext2_badblocks_list badblocks;
ext2_dblist dblist;
__u32 stride; /* for mke2fs */
struct ext2_super_block * orig_super;
struct ext2_image_hdr * image_header;
+ __u32 umask;
+ time_t now;
/*
* Reserved for future expansion
*/
- __u32 reserved[9];
+ __u32 reserved[7];
/*
* Reserved for the use of the calling application.
* Inode cache
*/
struct ext2_inode_cache *icache;
+ io_channel image_io;
+
+ /*
+ * More callback functions
+ */
+ errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
+ blk64_t *ret);
+ void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
};
#if EXT2_FLAT_INCLUDES
* This is used by ext2fs_expand_dir() to be able to add a new block
* to an inode. It can also be used for programs that want to be able
* to deal with files that contain "holes".
- *
- * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
- * indirect, doubly indirect, etc. blocks should be called after all
- * of the blocks containined in the indirect blocks are processed.
+ *
+ * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
+ * the indirect, doubly indirect, etc. blocks should be called after
+ * all of the blocks containined in the indirect blocks are processed.
* This is useful if you are going to be deallocating blocks from an
* inode.
*
* BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
* called for data blocks only.
*
+ * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
+ * modify returned block number.
+ *
* BLOCK_FLAG_NO_LARGE is for internal use only. It informs
* ext2fs_block_iterate2 that large files won't be accepted.
*/
#define BLOCK_FLAG_HOLE 1
#define BLOCK_FLAG_DEPTH_TRAVERSE 2
#define BLOCK_FLAG_DATA_ONLY 4
+#define BLOCK_FLAG_READ_ONLY 8
#define BLOCK_FLAG_NO_LARGE 0x1000
/*
* Flags for ext2fs_move_blocks
*/
-#define EXT2_BMOVE_GET_DBLIST 0x0001
+#define EXT2_BMOVE_GET_DBLIST 0x0001
#define EXT2_BMOVE_DEBUG 0x0002
#endif
/*
+ * Generic (non-filesystem layout specific) extents structure
+ */
+
+#define EXT2_EXTENT_FLAGS_LEAF 0x0001
+#define EXT2_EXTENT_FLAGS_UNINIT 0x0002
+#define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
+
+struct ext2fs_extent {
+ blk64_t e_pblk; /* first physical block */
+ blk64_t e_lblk; /* first logical block extent covers */
+ __u32 e_len; /* number of blocks covered by extent */
+ __u32 e_flags; /* extent flags */
+};
+
+typedef struct ext2_extent_handle *ext2_extent_handle_t;
+typedef struct ext2_extent_path *ext2_extent_path_t;
+
+/*
+ * Flags used by ext2fs_extent_get()
+ */
+#define EXT2_EXTENT_CURRENT 0x0000
+#define EXT2_EXTENT_MOVE_MASK 0x000F
+#define EXT2_EXTENT_ROOT 0x0001
+#define EXT2_EXTENT_LAST_LEAF 0x0002
+#define EXT2_EXTENT_FIRST_SIB 0x0003
+#define EXT2_EXTENT_LAST_SIB 0x0004
+#define EXT2_EXTENT_NEXT_SIB 0x0005
+#define EXT2_EXTENT_PREV_SIB 0x0006
+#define EXT2_EXTENT_NEXT_LEAF 0x0007
+#define EXT2_EXTENT_PREV_LEAF 0x0008
+#define EXT2_EXTENT_NEXT 0x0009
+#define EXT2_EXTENT_PREV 0x000A
+#define EXT2_EXTENT_UP 0x000B
+#define EXT2_EXTENT_DOWN 0x000C
+#define EXT2_EXTENT_DOWN_AND_LAST 0x000D
+
+/*
+ * Flags used by ext2fs_extent_insert()
+ */
+#define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
+#define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
+
+/*
+ * Flags used by ext2fs_extent_delete()
+ */
+#define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
+
+/*
+ * Flags used by ext2fs_extent_set_bmap()
+ */
+#define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
+
+/*
+ * Data structure returned by ext2fs_extent_get_info()
+ */
+struct ext2_extent_info {
+ int curr_entry;
+ int curr_level;
+ int num_entries;
+ int max_entries;
+ int max_depth;
+ int bytes_avail;
+ blk64_t max_lblk;
+ blk64_t max_pblk;
+ __u32 max_len;
+ __u32 max_uninit_len;
+};
+
+/*
+ * Flags for directory block reading and writing functions
+ */
+#define EXT2_DIRBLOCK_V2_STRUCT 0x0001
+
+/*
* Return flags for the directory iterator functions
*/
#define DIRENT_CHANGED 1
*/
#define DIRENT_FLAG_INCLUDE_EMPTY 1
-
+#define DIRENT_FLAG_INCLUDE_REMOVED 2
#define DIRENT_DOT_FILE 1
#define DIRENT_DOT_DOT_FILE 2
#define DIRENT_OTHER_FILE 3
+#define DIRENT_DELETED_FILE 4
/*
* Inode scan definitions
#define EXT2_SF_BAD_INODE_BLK 0x0002
#define EXT2_SF_BAD_EXTRA_BYTES 0x0004
#define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
+#define EXT2_SF_DO_LAZY 0x0010
/*
* ext2fs_check_if_mounted flags
#define EXT2_MF_MOUNTED 1
#define EXT2_MF_ISROOT 2
#define EXT2_MF_READONLY 4
+#define EXT2_MF_SWAP 8
+#define EXT2_MF_BUSY 16
/*
* Ext2/linux mode flags. We define them here so that we don't need
#define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
/*
+ * ext2 size of an inode
+ */
+#define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
+
+/*
* ext2_icount_t abstraction
*/
#define EXT2_ICOUNT_OPT_INCREMENT 0x01
/*
* Flags for ext2fs_bmap
*/
-#define BMAP_ALLOC 1
+#define BMAP_ALLOC 0x0001
+#define BMAP_SET 0x0002
+
+/*
+ * Returned flags from ext2fs_bmap
+ */
+#define BMAP_RET_UNINIT 0x0001
/*
* Flags for imager.c functions
/*
* For ext2 compression support
*/
-#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
+#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
#define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
/*
*/
#define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
- EXT3_FEATURE_COMPAT_HAS_JOURNAL)
+ EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
+ EXT2_FEATURE_COMPAT_RESIZE_INODE|\
+ EXT2_FEATURE_COMPAT_DIR_INDEX|\
+ EXT2_FEATURE_COMPAT_EXT_ATTR)
/* This #ifdef is temporary until compression is fully supported */
#ifdef ENABLE_COMPRESSION
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
EXT2_FEATURE_INCOMPAT_COMPRESSION|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
- EXT3_FEATURE_INCOMPAT_RECOVER)
+ EXT2_FEATURE_INCOMPAT_META_BG|\
+ EXT3_FEATURE_INCOMPAT_RECOVER|\
+ EXT3_FEATURE_INCOMPAT_EXTENTS|\
+ EXT4_FEATURE_INCOMPAT_FLEX_BG)
#else
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
- EXT3_FEATURE_INCOMPAT_RECOVER)
+ EXT2_FEATURE_INCOMPAT_META_BG|\
+ EXT3_FEATURE_INCOMPAT_RECOVER|\
+ EXT3_FEATURE_INCOMPAT_EXTENTS|\
+ EXT4_FEATURE_INCOMPAT_FLEX_BG)
#endif
#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
+ EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
+ EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
+
+/*
+ * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
+ * to ext2fs_openfs()
+ */
+#define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
+#define EXT2_LIB_SOFTSUPP_RO_COMPAT (0)
+
/*
* function prototypes
*/
blk_t *ret);
extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
char *block_buf, blk_t *ret);
+extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
+ errcode_t (*func)(ext2_filsys fs,
+ blk64_t goal,
+ blk64_t *ret),
+ errcode_t (**old)(ext2_filsys fs,
+ blk64_t goal,
+ blk64_t *ret));
+
+/* alloc_sb.c */
+extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
+ dgrp_t group,
+ ext2fs_block_bitmap bmap);
+extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
+ void (*func)(ext2_filsys fs,
+ blk64_t blk,
+ int inuse),
+ void (**old)(ext2_filsys fs,
+ blk64_t blk,
+ int inuse));
+
+/* alloc_stats.c */
+void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
+void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
+ int inuse, int isdir);
+void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
/* alloc_tables.c */
extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
ext2fs_block_bitmap bmap);
/* badblocks.c */
+extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
+extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
+extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
+extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
+extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
+ ext2_u32_iterate *ret);
+extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
+extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
+extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
+extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
+
extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
int size);
extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
blk_t blk);
extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
blk_t blk);
+extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
+extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
extern errcode_t
ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
ext2_badblocks_iterate *ret);
ext2_badblocks_list *dest);
extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
ext2_badblocks_list bb2);
+extern int ext2fs_u32_list_count(ext2_u32_list bb);
/* bb_compat */
extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
ext2_badblocks_list bb_list);
/* bitmaps.c */
+extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
+extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
+extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
+ ext2fs_generic_bitmap *dest);
extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
-extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
- __u32 end,
- __u32 real_end,
- const char *descr,
- ext2fs_generic_bitmap *ret);
extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_block_bitmap *ret);
extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
+extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
+ ext2fs_inode_bitmap bmap);
+extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
+ ext2fs_block_bitmap bmap);
+extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
+ ext2fs_block_bitmap bm2);
+extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
+ ext2fs_inode_bitmap bm2);
+extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
+ ext2_ino_t start, unsigned int num,
+ void *in);
+extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
+ ext2_ino_t start, unsigned int num,
+ void *out);
+extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
+ blk_t start, unsigned int num,
+ void *in);
+extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
+ blk_t start, unsigned int num,
+ void *out);
+
/* block.c */
extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
/* bmap.c */
extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode,
+ struct ext2_inode *inode,
char *block_buf, int bmap_flags,
blk_t block, blk_t *phys_blk);
-
+extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ char *block_buf, int bmap_flags, blk64_t block,
+ int *ret_flags, blk64_t *phys_blk);
#if 0
/* bmove.c */
extern errcode_t ext2fs_close(ext2_filsys fs);
extern errcode_t ext2fs_flush(ext2_filsys fs);
extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
+extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
+ dgrp_t group,
+ blk_t *ret_super_blk,
+ blk_t *ret_old_desc_blk,
+ blk_t *ret_new_desc_blk,
+ int *ret_meta_bg);
extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
-/* cmp_bitmaps.c */
-extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
- ext2fs_block_bitmap bm2);
-extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
- ext2fs_inode_bitmap bm2);
+/* csum.c */
+extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
+extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
+extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
/* dblist.c */
extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
+extern void ext2fs_dblist_sort(ext2_dblist dblist,
+ EXT2_QSORT_TYPE (*sortfunc)(const void *,
+ const void *));
extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
void *priv_data),
extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
ext2_dblist *dest);
extern int ext2fs_dblist_count(ext2_dblist dblist);
+extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
+ struct ext2_db_entry **entry);
+extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
/* dblist_dir.c */
extern errcode_t
/* dirblock.c */
extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
void *buf);
+extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
+ void *buf, int flags);
extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
void *buf);
+extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
+ void *buf, int flags);
+
+/* dirhash.c */
+extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
+ const __u32 *seed,
+ ext2_dirhash_t *ret_hash,
+ ext2_dirhash_t *ret_minor_hash);
+
/* dir_iterate.c */
-extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
+extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ unsigned int *rec_len);
+extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
+ unsigned int len,
+ struct ext2_dir_entry *dirent);
+extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
ext2_ino_t dir,
int flags,
char *block_buf,
char *buf,
void *priv_data),
void *priv_data);
+extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
+ ext2_ino_t dir,
+ int flags,
+ char *block_buf,
+ int (*func)(ext2_ino_t dir,
+ int entry,
+ struct ext2_dir_entry *dirent,
+ int offset,
+ int blocksize,
+ char *buf,
+ void *priv_data),
+ void *priv_data);
/* dupfs.c */
extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
/* expanddir.c */
extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
+/* ext_attr.c */
+extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
+ void *data);
+extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
+extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
+ void *buf);
+extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
+ char *block_buf,
+ int adjust, __u32 *newcount);
+
+/* extent.c */
+extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
+extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
+ ext2_extent_handle_t *handle);
+extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ ext2_extent_handle_t *ret_handle);
+extern void ext2fs_extent_free(ext2_extent_handle_t handle);
+extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
+ int flags, struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
+ struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
+ struct ext2fs_extent *extent);
+extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
+ blk64_t logical, blk64_t physical,
+ int flags);
+extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
+extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
+ struct ext2_extent_info *info);
+extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
+ blk64_t blk);
+
/* fileio.c */
+extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ int flags, ext2_file_t *ret);
extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
int flags, ext2_file_t *ret);
extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
extern errcode_t ext2fs_file_close(ext2_file_t file);
+extern errcode_t ext2fs_file_flush(ext2_file_t file);
extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
unsigned int wanted, unsigned int *got);
-extern errcode_t ext2fs_file_write(ext2_file_t file, void *buf,
+extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
unsigned int nbytes, unsigned int *written);
+extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
+ int whence, __u64 *ret_pos);
extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
int whence, ext2_off_t *ret_pos);
+errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
/* freefs.c */
extern void ext2fs_free(ext2_filsys fs);
-extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
-extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
-extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
extern void ext2fs_free_dblist(ext2_dblist dblist);
-extern void ext2fs_badblocks_list_free(badblocks_list bb);
+extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
+extern void ext2fs_u32_list_free(ext2_u32_list bb);
+
+/* gen_bitmap.c */
+extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
+extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
+ __u32 start, __u32 end,
+ __u32 real_end,
+ const char *descr, char *init_map,
+ ext2fs_generic_bitmap *ret);
+extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
+ __u32 end,
+ __u32 real_end,
+ const char *descr,
+ ext2fs_generic_bitmap *ret);
+extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
+ ext2fs_generic_bitmap *dest);
+extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
+extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
+ errcode_t magic,
+ errcode_t neq,
+ ext2_ino_t end,
+ ext2_ino_t *oend);
+extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
+extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
+ __u32 new_end,
+ __u32 new_real_end,
+ ext2fs_generic_bitmap bmap);
+extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
+ ext2fs_generic_bitmap bm1,
+ ext2fs_generic_bitmap bm2);
+extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
+ errcode_t magic,
+ __u32 start, __u32 num,
+ void *out);
+extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
+ errcode_t magic,
+ __u32 start, __u32 num,
+ void *in);
/* getsize.c */
extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
blk_t *retblocks);
+extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
+ blk64_t *retblocks);
+
+/* getsectsize.c */
+errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
+
+/* i_block.c */
+errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
+ blk64_t num_blocks);
+errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
+ blk64_t num_blocks);
+errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
/* imager.c */
extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
+/* ind_block.c */
+errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
+errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
+
/* initialize.c */
extern errcode_t ext2fs_initialize(const char *name, int flags,
struct ext2_super_block *param,
io_manager manager, ext2_filsys *ret_fs);
+/* icount.c */
+extern void ext2fs_free_icount(ext2_icount_t icount);
+extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
+ int flags, ext2_icount_t *ret);
+extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
+ unsigned int size,
+ ext2_icount_t hint, ext2_icount_t *ret);
+extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
+ unsigned int size,
+ ext2_icount_t *ret);
+extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
+ __u16 *ret);
+extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
+ __u16 *ret);
+extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
+ __u16 *ret);
+extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
+ __u16 count);
+extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
+errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
+
/* inode.c */
extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
+extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
+ ext2_ino_t *ino,
+ struct ext2_inode *inode,
+ int bufsize);
extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
ext2_inode_scan *ret_scan);
extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
void *done_group_data);
extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
int clear_flags);
+extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode * inode,
+ int bufsize);
extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
+extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode * inode,
+ int bufsize);
extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
+extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode * inode);
extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
-/* icount.c */
-extern void ext2fs_free_icount(ext2_icount_t icount);
-extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, int size,
- ext2_icount_t hint, ext2_icount_t *ret);
-extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags, int size,
- ext2_icount_t *ret);
-extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
- __u16 *ret);
-extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
- __u16 *ret);
-extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
- __u16 *ret);
-extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
- __u16 count);
-extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
-errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
+/* inode_io.c */
+extern io_manager inode_io_manager;
+extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
+ char **name);
+extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode,
+ char **name);
/* ismounted.c */
extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
const char *name);
/* mkjournal.c */
+extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
+ blk_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
__u32 size, int flags,
char **ret_jsb);
ext2_filsys journal_dev);
extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
int flags);
+extern int ext2fs_default_journal_size(__u64 blocks);
/* openfs.c */
extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
- int block_size, io_manager manager,
+ unsigned int block_size, io_manager manager,
ext2_filsys *ret_fs);
+extern errcode_t ext2fs_open2(const char *name, const char *io_options,
+ int flags, int superblock,
+ unsigned int block_size, io_manager manager,
+ ext2_filsys *ret_fs);
+extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
+ dgrp_t i);
+errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
+errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
+errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
/* get_pathname.c */
extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
ext2_badblocks_list *bb_list);
/* read_bb_file.c */
-extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
+extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
- void *private,
+ void *priv_data,
void (*invalid)(ext2_filsys fs,
blk_t blk,
char *badstr,
- void *private));
-extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
+ void *priv_data));
+extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void (*invalid)(ext2_filsys fs,
blk_t blk));
-/* rs_bitmap.c */
-extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end,
- __u32 new_real_end,
- ext2fs_generic_bitmap bmap);
-extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
- ext2fs_inode_bitmap bmap);
-extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
- ext2fs_block_bitmap bmap);
-extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
- ext2fs_generic_bitmap *dest);
+/* res_gdt.c */
+extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
/* swapfs.c */
+extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
+ int has_header);
+extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
+ struct ext2_ext_attr_header *from_hdr);
+extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
+ struct ext2_ext_attr_entry *from_entry);
extern void ext2fs_swap_super(struct ext2_super_block * super);
extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
+extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
+ struct ext2_inode_large *f, int hostorder,
+ int bufsize);
extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
struct ext2_inode *f, int hostorder);
/* inline functions */
-extern errcode_t ext2fs_get_mem(unsigned long size, void **ptr);
-extern errcode_t ext2fs_free_mem(void **ptr);
+extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
+extern errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr);
+extern errcode_t ext2fs_free_mem(void *ptr);
extern errcode_t ext2fs_resize_mem(unsigned long old_size,
- unsigned long size, void **ptr);
+ unsigned long size, void *ptr);
extern void ext2fs_mark_super_dirty(ext2_filsys fs);
extern void ext2fs_mark_changed(ext2_filsys fs);
extern int ext2fs_test_changed(ext2_filsys fs);
extern int ext2fs_test_bb_dirty(ext2_filsys fs);
extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
+extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
+extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
+extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
+ struct ext2_inode *inode);
+extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
/*
* The actual inlined functions definitions themselves...
#endif
#ifndef EXT2_CUSTOM_MEMORY_ROUTINES
+#include <string.h>
/*
* Allocate memory
*/
-_INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void **ptr)
+_INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
{
- *ptr = malloc(size);
- if (!*ptr)
+ void *pp;
+
+ pp = malloc(size);
+ if (!pp)
return EXT2_ET_NO_MEMORY;
+ memcpy(ptr, &pp, sizeof (pp));
return 0;
}
+_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
+{
+ if (count && (-1UL)/count<size)
+ return EXT2_ET_NO_MEMORY; //maybe define EXT2_ET_OVERFLOW ?
+ return ext2fs_get_mem(count*size, ptr);
+}
+
/*
* Free memory
*/
-_INLINE_ errcode_t ext2fs_free_mem(void **ptr)
+_INLINE_ errcode_t ext2fs_free_mem(void *ptr)
{
- free(*ptr);
- *ptr = 0;
+ void *p;
+
+ memcpy(&p, ptr, sizeof(p));
+ free(p);
+ p = 0;
+ memcpy(ptr, &p, sizeof(p));
return 0;
}
-
+
/*
* Resize memory
*/
-_INLINE_ errcode_t ext2fs_resize_mem(unsigned long old_size,
- unsigned long size, void **ptr)
+_INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
+ unsigned long size, void *ptr)
{
void *p;
- p = realloc(*ptr, size);
+ /* Use "memcpy" for pointer assignments here to avoid problems
+ * with C99 strict type aliasing rules. */
+ memcpy(&p, ptr, sizeof(p));
+ p = realloc(p, size);
if (!p)
return EXT2_ET_NO_MEMORY;
- *ptr = p;
+ memcpy(ptr, &p, sizeof(p));
return 0;
}
#endif /* Custom memory routines */
{
return (ino - 1) / fs->super->s_inodes_per_group;
}
+
+/*
+ * Return the first block (inclusive) in a group
+ */
+_INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
+{
+ return fs->super->s_first_data_block +
+ (group * fs->super->s_blocks_per_group);
+}
+
+/*
+ * Return the last block (inclusive) in a group
+ */
+_INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
+{
+ return (group == fs->group_desc_count - 1 ?
+ fs->super->s_blocks_count - 1 :
+ ext2fs_group_first_block(fs, group) +
+ (fs->super->s_blocks_per_group - 1));
+}
+
+_INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
+ struct ext2_inode *inode)
+{
+ return inode->i_blocks -
+ (inode->i_file_acl ? fs->blocksize >> 9 : 0);
+}
+
+/*
+ * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
+ */
+_INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
+{
+ if (!a)
+ return 0;
+ return ((a - 1) / b) + 1;
+}
#undef _INLINE_
#endif
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff