diff options
Diffstat (limited to 'e2fslib/ext2fs.h')
| -rw-r--r-- | e2fslib/ext2fs.h | 976 |
1 files changed, 0 insertions, 976 deletions
diff --git a/e2fslib/ext2fs.h b/e2fslib/ext2fs.h deleted file mode 100644 index bb3ae26..0000000 --- a/e2fslib/ext2fs.h +++ /dev/null @@ -1,976 +0,0 @@ -/* - * 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. - * %End-Header% - */ - -#ifndef _EXT2FS_EXT2FS_H -#define _EXT2FS_EXT2FS_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Non-GNU C compilers won't necessarily understand inline - */ -#if (!defined(__GNUC__) && !defined(__WATCOMC__)) -#define NO_INLINE_FUNCS -#endif - -/* - * Build in support for byte-swapping filesystems if we the feature - * has been configured or if we're being built on a CPU architecture - * with a non-native byte order. - */ -#if defined(ENABLE_SWAPFS) || defined(WORDS_BIGENDIAN) -#define EXT2FS_ENABLE_SWAPFS -#endif - -/* - * Where the master copy of the superblock is located, and how big - * superblocks are supposed to be. We define SUPERBLOCK_SIZE because - * the size of the superblock structure is not necessarily trustworthy - * (some versions have the padding set up so that the superblock is - * 1032 bytes long). - */ -#define SUPERBLOCK_OFFSET 1024 -#define SUPERBLOCK_SIZE 1024 - -/* - * The last ext2fs revision level that this version of the library is - * able to support. - */ -#define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV - -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#include <stdlib.h> - -#if EXT2_FLAT_INCLUDES -#include "e2_types.h" -#else -#include <ext2_types.h> -#endif /* EXT2_FLAT_INCLUDES */ - -typedef __u32 ext2_ino_t; -typedef __u32 blk_t; -typedef __u32 dgrp_t; -typedef __u32 ext2_off_t; -typedef __s64 e2_blkcnt_t; - -#if EXT2_FLAT_INCLUDES -#include "com_err.h" -#include "ext2_io.h" -#include "ext2_err.h" -#else -#include <et/com_err.h> -#include <ext2_io.h> -#include <ext2_err.h> -#endif - -/* - * Portability help for Microsoft Visual C++ - */ -#ifdef _MSC_VER -#define EXT2_QSORT_TYPE int __cdecl -#else -#define EXT2_QSORT_TYPE int -#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_generic_bitmap; -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 - */ - -typedef struct ext2_struct_badblocks_list *ext2_badblocks_list; -typedef struct ext2_struct_badblocks_iterate *ext2_badblocks_iterate; - -/* old */ -typedef struct ext2_struct_badblocks_list *badblocks_list; -typedef struct ext2_struct_badblocks_iterate *badblocks_iterate; - -#define BADBLOCKS_FLAG_DIRTY 1 - -/* - * ext2_dblist structure and abstractions (see dblist.c) - */ -struct ext2_db_entry { - ext2_ino_t ino; - blk_t blk; - int blockcnt; -}; - -typedef struct ext2_struct_dblist *ext2_dblist; - -#define DBLIST_ABORT 1 - -/* - * ext2_fileio definitions - */ - -#define EXT2_FILE_WRITE 0x0001 -#define EXT2_FILE_CREATE 0x0002 - -#define EXT2_FILE_MASK 0x00FF - -#define EXT2_FILE_BUF_DIRTY 0x4000 -#define EXT2_FILE_BUF_VALID 0x2000 - -typedef struct ext2_file *ext2_file_t; - -#define EXT2_SEEK_SET 0 -#define EXT2_SEEK_CUR 1 -#define EXT2_SEEK_END 2 - -/* - * Flags for the ext2_filsys structure and for ext2fs_open() - */ -#define EXT2_FLAG_RW 0x01 -#define EXT2_FLAG_CHANGED 0x02 -#define EXT2_FLAG_DIRTY 0x04 -#define EXT2_FLAG_VALID 0x08 -#define EXT2_FLAG_IB_DIRTY 0x10 -#define EXT2_FLAG_BB_DIRTY 0x20 -#define EXT2_FLAG_SWAP_BYTES 0x40 -#define EXT2_FLAG_SWAP_BYTES_READ 0x80 -#define EXT2_FLAG_SWAP_BYTES_WRITE 0x100 -#define EXT2_FLAG_MASTER_SB_ONLY 0x200 -#define EXT2_FLAG_FORCE 0x400 -#define EXT2_FLAG_SUPER_ONLY 0x800 -#define EXT2_FLAG_JOURNAL_DEV_OK 0x1000 -#define EXT2_FLAG_IMAGE_FILE 0x2000 - -/* - * Special flag in the ext2 inode i_flag field that means that this is - * a new inode. (So that ext2_write_inode() can clear extra fields.) - */ -#define EXT2_NEW_INODE_FL 0x80000000 - -/* - * Flags for mkjournal - * - * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock - */ -#define EXT2_MKJOURNAL_V1_SUPER 0x0000001 - -struct struct_ext2_filsys { - errcode_t magic; - io_channel io; - int flags; - char * device_name; - struct ext2_super_block * super; - int blocksize; - int fragsize; - dgrp_t group_desc_count; - unsigned long desc_blocks; - struct ext2_group_desc * group_desc; - int inode_blocks_per_group; - ext2fs_inode_bitmap inode_map; - ext2fs_block_bitmap block_map; - errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); - errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino); - errcode_t (*write_bitmaps)(ext2_filsys fs); - errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino, - struct ext2_inode *inode); - errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino, - struct ext2_inode *inode); - badblocks_list badblocks; - ext2_dblist dblist; - __u32 stride; /* for mke2fs */ - struct ext2_super_block * orig_super; - struct ext2_image_hdr * image_header; - /* - * Reserved for future expansion - */ - __u32 reserved[9]; - - /* - * Reserved for the use of the calling application. - */ - void * priv_data; - - /* - * Inode cache - */ - struct ext2_inode_cache *icache; -}; - -#if EXT2_FLAT_INCLUDES -#include "e2_bitops.h" -#else -#include <bitops.h> -#endif - -/* - * Return flags for the block iterator functions - */ -#define BLOCK_CHANGED 1 -#define BLOCK_ABORT 2 -#define BLOCK_ERROR 4 - -/* - * Block interate flags - * - * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator - * function should be called on blocks where the block number is zero. - * 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. - * 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_NO_LARGE is for internal use only. It informs - * ext2fs_block_iterate2 that large files won't be accepted. - */ -#define BLOCK_FLAG_APPEND 1 -#define BLOCK_FLAG_HOLE 1 -#define BLOCK_FLAG_DEPTH_TRAVERSE 2 -#define BLOCK_FLAG_DATA_ONLY 4 - -#define BLOCK_FLAG_NO_LARGE 0x1000 - -/* - * Magic "block count" return values for the block iterator function. - */ -#define BLOCK_COUNT_IND (-1) -#define BLOCK_COUNT_DIND (-2) -#define BLOCK_COUNT_TIND (-3) -#define BLOCK_COUNT_TRANSLATOR (-4) - -#if 0 -/* - * Flags for ext2fs_move_blocks - */ -#define EXT2_BMOVE_GET_DBLIST 0x0001 -#define EXT2_BMOVE_DEBUG 0x0002 -#endif - -/* - * Return flags for the directory iterator functions - */ -#define DIRENT_CHANGED 1 -#define DIRENT_ABORT 2 -#define DIRENT_ERROR 3 - -/* - * Directory iterator flags - */ - -#define DIRENT_FLAG_INCLUDE_EMPTY 1 - - -#define DIRENT_DOT_FILE 1 -#define DIRENT_DOT_DOT_FILE 2 -#define DIRENT_OTHER_FILE 3 - -/* - * Inode scan definitions - */ -typedef struct ext2_struct_inode_scan *ext2_inode_scan; - -/* - * ext2fs_scan flags - */ -#define EXT2_SF_CHK_BADBLOCKS 0x0001 -#define EXT2_SF_BAD_INODE_BLK 0x0002 -#define EXT2_SF_BAD_EXTRA_BYTES 0x0004 -#define EXT2_SF_SKIP_MISSING_ITABLE 0x0008 - -/* - * ext2fs_check_if_mounted flags - */ -#define EXT2_MF_MOUNTED 1 -#define EXT2_MF_ISROOT 2 -#define EXT2_MF_READONLY 4 - -/* - * Ext2/linux mode flags. We define them here so that we don't need - * to depend on the OS's sys/stat.h, since we may be compiling on a - * non-Linux system. - */ -#define LINUX_S_IFMT 00170000 -#define LINUX_S_IFSOCK 0140000 -#define LINUX_S_IFLNK 0120000 -#define LINUX_S_IFREG 0100000 -#define LINUX_S_IFBLK 0060000 -#define LINUX_S_IFDIR 0040000 -#define LINUX_S_IFCHR 0020000 -#define LINUX_S_IFIFO 0010000 -#define LINUX_S_ISUID 0004000 -#define LINUX_S_ISGID 0002000 -#define LINUX_S_ISVTX 0001000 - -#define LINUX_S_IRWXU 00700 -#define LINUX_S_IRUSR 00400 -#define LINUX_S_IWUSR 00200 -#define LINUX_S_IXUSR 00100 - -#define LINUX_S_IRWXG 00070 -#define LINUX_S_IRGRP 00040 -#define LINUX_S_IWGRP 00020 -#define LINUX_S_IXGRP 00010 - -#define LINUX_S_IRWXO 00007 -#define LINUX_S_IROTH 00004 -#define LINUX_S_IWOTH 00002 -#define LINUX_S_IXOTH 00001 - -#define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK) -#define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG) -#define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR) -#define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR) -#define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK) -#define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO) -#define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK) - -/* - * ext2_icount_t abstraction - */ -#define EXT2_ICOUNT_OPT_INCREMENT 0x01 - -typedef struct ext2_icount *ext2_icount_t; - -/* - * Flags for ext2fs_bmap - */ -#define BMAP_ALLOC 1 - -/* - * Flags for imager.c functions - */ -#define IMAGER_FLAG_INODEMAP 1 -#define IMAGER_FLAG_SPARSEWRITE 2 - -/* - * For checking structure magic numbers... - */ - -#define EXT2_CHECK_MAGIC(struct, code) \ - if ((struct)->magic != (code)) return (code) - - -/* - * For ext2 compression support - */ -#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff) -#define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR) - -/* - * Features supported by this version of the library - */ -#define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ - EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ - EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ - EXT2_FEATURE_COMPAT_EXT_ATTR) - -/* This #ifdef is temporary until compression is fully supported */ -#ifdef ENABLE_COMPRESSION -#ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL -/* If the below warning bugs you, then have - `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your - environment at configure time. */ - #warning "Compression support is experimental" -#endif -#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ - EXT2_FEATURE_INCOMPAT_COMPRESSION|\ - EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ - EXT3_FEATURE_INCOMPAT_RECOVER) -#else -#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ - EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ - EXT3_FEATURE_INCOMPAT_RECOVER) -#endif -#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\ - EXT2_FEATURE_RO_COMPAT_LARGE_FILE) -/* - * function prototypes - */ - -/* alloc.c */ -extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, - ext2fs_inode_bitmap map, ext2_ino_t *ret); -extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, - ext2fs_block_bitmap map, blk_t *ret); -extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, - blk_t finish, int num, - ext2fs_block_bitmap map, - blk_t *ret); -extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, - char *block_buf, blk_t *ret); - -/* alloc_tables.c */ -extern errcode_t ext2fs_allocate_tables(ext2_filsys fs); -extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group, - ext2fs_block_bitmap bmap); - -/* badblocks.c */ -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 errcode_t - ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, - ext2_badblocks_iterate *ret); -extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, - blk_t *blk); -extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter); -extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, - ext2_badblocks_list *dest); -extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1, - ext2_badblocks_list bb2); - -/* bb_compat */ -extern errcode_t badblocks_list_create(badblocks_list *ret, int size); -extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk); -extern int badblocks_list_test(badblocks_list bb, blk_t blk); -extern errcode_t badblocks_list_iterate_begin(badblocks_list bb, - badblocks_iterate *ret); -extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk); -extern void badblocks_list_iterate_end(badblocks_iterate iter); -extern void badblocks_list_free(badblocks_list bb); - -/* bb_inode.c */ -extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs, - ext2_badblocks_list bb_list); - -/* bitmaps.c */ -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 errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, - const char *descr, - ext2fs_inode_bitmap *ret); -extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, - ext2_ino_t end, ext2_ino_t *oend); -extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, - blk_t end, blk_t *oend); -extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); -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); - -/* block.c */ -extern errcode_t ext2fs_block_iterate(ext2_filsys fs, - ext2_ino_t ino, - int flags, - char *block_buf, - int (*func)(ext2_filsys fs, - blk_t *blocknr, - int blockcnt, - void *priv_data), - void *priv_data); -errcode_t ext2fs_block_iterate2(ext2_filsys fs, - ext2_ino_t ino, - int flags, - char *block_buf, - int (*func)(ext2_filsys fs, - blk_t *blocknr, - e2_blkcnt_t blockcnt, - blk_t ref_blk, - int ref_offset, - void *priv_data), - void *priv_data); - -/* bmap.c */ -extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, - struct ext2_inode *inode, - char *block_buf, int bmap_flags, - blk_t block, blk_t *phys_blk); - - -#if 0 -/* bmove.c */ -extern errcode_t ext2fs_move_blocks(ext2_filsys fs, - ext2fs_block_bitmap reserve, - ext2fs_block_bitmap alloc_map, - int flags); -#endif - -/* check_desc.c */ -extern errcode_t ext2fs_check_desc(ext2_filsys fs); - -/* closefs.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 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); - -/* dblist.c */ - -extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs); -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 errcode_t ext2fs_dblist_iterate(ext2_dblist dblist, - int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info, - void *priv_data), - void *priv_data); -extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino, - blk_t blk, int blockcnt); -extern errcode_t ext2fs_copy_dblist(ext2_dblist src, - ext2_dblist *dest); -extern int ext2fs_dblist_count(ext2_dblist dblist); - -/* dblist_dir.c */ -extern errcode_t - ext2fs_dblist_dir_iterate(ext2_dblist dblist, - 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); - -/* dirblock.c */ -extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block, - void *buf); -extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block, - void *buf); - -/* dir_iterate.c */ -extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, - ext2_ino_t dir, - int flags, - char *block_buf, - int (*func)(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 */ -void ext2fs_swap_ext_attr(ext2_filsys fs, char *to, char *from); -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); -/* fileio.c */ -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_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, - unsigned int nbytes, unsigned int *written); -extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset, - int whence, ext2_off_t *ret_pos); -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); - -/* finddev.c */ -extern char *ext2fs_find_block_device(dev_t device); - -/* flushb.c */ -extern errcode_t ext2fs_sync_device(int fd, int flushb); - -/* 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); - -/* getsize.c */ -extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, - blk_t *retblocks); - -/* imager.c */ -extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags); -extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags); -extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags); -extern errcode_t ext2fs_image_super_read(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); - -/* initialize.c */ -extern errcode_t ext2fs_initialize(const char *name, int flags, - struct ext2_super_block *param, - io_manager manager, ext2_filsys *ret_fs); - -/* inode.c */ -extern errcode_t ext2fs_flush_icache(ext2_filsys fs); -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); -extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino, - struct ext2_inode *inode); -extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan, - int group); -extern void ext2fs_set_inode_callback - (ext2_inode_scan scan, - errcode_t (*done_group)(ext2_filsys fs, - ext2_inode_scan scan, - dgrp_t group, - void * priv_data), - 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 (ext2_filsys fs, ext2_ino_t ino, - struct ext2_inode * inode); -extern errcode_t ext2fs_write_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 *); - -/* ismounted.c */ -extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); -extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, - char *mtpt, int mtlen); - -/* namei.c */ -extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, - int namelen, char *buf, ext2_ino_t *inode); -extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - const char *name, ext2_ino_t *inode); -errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - const char *name, ext2_ino_t *inode); -extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, - ext2_ino_t inode, ext2_ino_t *res_inode); - -/* native.c */ -int ext2fs_native_flag(void); - -/* newdir.c */ -extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino, - ext2_ino_t parent_ino, char **block); - -/* mkdir.c */ -extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum, - const char *name); - -/* mkjournal.c */ -extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs, - __u32 size, int flags, - char **ret_jsb); -extern errcode_t ext2fs_add_journal_device(ext2_filsys fs, - ext2_filsys journal_dev); -extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, - int flags); - -/* openfs.c */ -extern errcode_t ext2fs_open(const char *name, int flags, int superblock, - int block_size, io_manager manager, - ext2_filsys *ret_fs); - -/* get_pathname.c */ -extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino, - char **name); - -/* link.c */ -errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name, - ext2_ino_t ino, int flags); -errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name, - ext2_ino_t ino, int flags); - -/* read_bb.c */ -extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs, - ext2_badblocks_list *bb_list); - -/* read_bb_file.c */ -extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, - ext2_badblocks_list *bb_list, - void *private, - void (*invalid)(ext2_filsys fs, - blk_t blk, - char *badstr, - void *private)); -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); - -/* swapfs.c */ -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(ext2_filsys fs,struct ext2_inode *t, - struct ext2_inode *f, int hostorder); - -/* valid_blk.c */ -extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode); - -/* version.c */ -extern int ext2fs_parse_version_string(const char *ver_string); -extern int ext2fs_get_library_version(const char **ver_string, - const char **date_string); - -/* write_bb_file.c */ -extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list, - unsigned int flags, - FILE *f); - - -/* 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_resize_mem(unsigned long old_size, - 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 void ext2fs_mark_valid(ext2_filsys fs); -extern void ext2fs_unmark_valid(ext2_filsys fs); -extern int ext2fs_test_valid(ext2_filsys fs); -extern void ext2fs_mark_ib_dirty(ext2_filsys fs); -extern void ext2fs_mark_bb_dirty(ext2_filsys fs); -extern int ext2fs_test_ib_dirty(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); - -/* - * The actual inlined functions definitions themselves... - * - * If NO_INLINE_FUNCS is defined, then we won't try to do inline - * functions at all! - */ -#if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) -#ifdef INCLUDE_INLINE_FUNCS -#define _INLINE_ extern -#else -#ifdef __GNUC__ -#define _INLINE_ extern __inline__ -#else /* For Watcom C */ -#define _INLINE_ extern inline -#endif -#endif - -#ifndef EXT2_CUSTOM_MEMORY_ROUTINES -/* - * Allocate memory - */ -_INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void **ptr) -{ - *ptr = malloc(size); - if (!*ptr) - return EXT2_ET_NO_MEMORY; - return 0; -} - -/* - * Free memory - */ -_INLINE_ errcode_t ext2fs_free_mem(void **ptr) -{ - free(*ptr); - *ptr = 0; - return 0; -} - -/* - * Resize memory - */ -_INLINE_ errcode_t ext2fs_resize_mem(unsigned long old_size, - unsigned long size, void **ptr) -{ - void *p; - - p = realloc(*ptr, size); - if (!p) - return EXT2_ET_NO_MEMORY; - *ptr = p; - return 0; -} -#endif /* Custom memory routines */ - -/* - * Mark a filesystem superblock as dirty - */ -_INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs) -{ - fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED; -} - -/* - * Mark a filesystem as changed - */ -_INLINE_ void ext2fs_mark_changed(ext2_filsys fs) -{ - fs->flags |= EXT2_FLAG_CHANGED; -} - -/* - * Check to see if a filesystem has changed - */ -_INLINE_ int ext2fs_test_changed(ext2_filsys fs) -{ - return (fs->flags & EXT2_FLAG_CHANGED); -} - -/* - * Mark a filesystem as valid - */ -_INLINE_ void ext2fs_mark_valid(ext2_filsys fs) -{ - fs->flags |= EXT2_FLAG_VALID; -} - -/* - * Mark a filesystem as NOT valid - */ -_INLINE_ void ext2fs_unmark_valid(ext2_filsys fs) -{ - fs->flags &= ~EXT2_FLAG_VALID; -} - -/* - * Check to see if a filesystem is valid - */ -_INLINE_ int ext2fs_test_valid(ext2_filsys fs) -{ - return (fs->flags & EXT2_FLAG_VALID); -} - -/* - * Mark the inode bitmap as dirty - */ -_INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs) -{ - fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED; -} - -/* - * Mark the block bitmap as dirty - */ -_INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs) -{ - fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED; -} - -/* - * Check to see if a filesystem's inode bitmap is dirty - */ -_INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs) -{ - return (fs->flags & EXT2_FLAG_IB_DIRTY); -} - -/* - * Check to see if a filesystem's block bitmap is dirty - */ -_INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs) -{ - return (fs->flags & EXT2_FLAG_BB_DIRTY); -} - -/* - * Return the group # of a block - */ -_INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk) -{ - return (blk - fs->super->s_first_data_block) / - fs->super->s_blocks_per_group; -} - -/* - * Return the group # of an inode number - */ -_INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino) -{ - return (ino - 1) / fs->super->s_inodes_per_group; -} -#undef _INLINE_ -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* _EXT2FS_EXT2FS_H */ |