diff options
Diffstat (limited to 'lib/ext2fs/ext2fs.h')
| -rw-r--r-- | lib/ext2fs/ext2fs.h | 102 |
1 files changed, 87 insertions, 15 deletions
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h index 672466b3..140c1269 100644 --- a/lib/ext2fs/ext2fs.h +++ b/lib/ext2fs/ext2fs.h @@ -21,7 +21,9 @@ */ #define EXT2_LIB_CURRENT_REV 0 -typedef unsigned long blk_t; +#include <linux/types.h> + +typedef __u32 blk_t; typedef unsigned int dgrp_t; #include "et/com_err.h" @@ -64,6 +66,7 @@ typedef struct ext2fs_struct_block_bitmap *ext2fs_block_bitmap; #define EXT2_FLAG_VALID 0x08 #define EXT2_FLAG_IB_DIRTY 0x10 #define EXT2_FLAG_BB_DIRTY 0x20 +#define EXT2_SWAP_BYTES 0x40 struct struct_ext2_filsys { int magic; @@ -128,8 +131,21 @@ struct struct_badblocks_iterate { /* * 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. */ #define BLOCK_FLAG_APPEND 1 +#define BLOCK_FLAG_HOLE 1 #define BLOCK_FLAG_DEPTH_TRAVERSE 2 /* @@ -169,6 +185,38 @@ struct ext2_struct_inode_scan { }; /* + * 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_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) + +/* * For checking structure magic numbers... */ @@ -208,20 +256,18 @@ 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); -errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs, - const char *descr, - ext2fs_block_bitmap *ret); -errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, - const char *descr, - ext2fs_inode_bitmap *ret); -errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, - ino_t end, ino_t *oend); -errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, - blk_t end, blk_t *oend); -void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); -void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap); -void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); -void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); +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, + ino_t end, 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); @@ -243,11 +289,30 @@ extern errcode_t ext2fs_check_desc(ext2_filsys fs); extern errcode_t ext2fs_close(ext2_filsys fs); extern errcode_t ext2fs_flush(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); + + +/* 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); + /* expanddir.c */ extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ino_t dir); /* freefs.c */ extern void ext2fs_free(ext2_filsys fs); +extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); +extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); + +/* getsize.c */ +extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, + blk_t *retblocks); /* initialize.c */ extern errcode_t ext2fs_initialize(const char *name, int flags, @@ -279,6 +344,9 @@ extern errcode_t ext2fs_write_inode(ext2_filsys fs, unsigned long ino, extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks); extern errcode_t ext2fs_check_directory(ext2_filsys fs, ino_t ino); +/* ismounted.c */ +extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); + /* namei.c */ extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, ino_t dir, @@ -327,6 +395,10 @@ extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f, void (*invalid)(ext2_filsys fs, blk_t blk)); +/* swapfs.c */ +extern void ext2fs_swap_super(struct ext2_super_block * super); +extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp); + /* inline functions */ extern void ext2fs_mark_super_dirty(ext2_filsys fs); extern void ext2fs_mark_changed(ext2_filsys fs); |