#include <stdlib.h>
#include <string.h>
#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#ifndef __USE_XOPEN2K
/* If the "#define _XOPEN_SOURCE 600" didn't succeed in declaring
#define EXT2_FLAG_64BITS 0x20000
#define EXT2_FLAG_PRINT_PROGRESS 0x40000
#define EXT2_FLAG_DIRECT_IO 0x80000
+#define EXT2_FLAG_SKIP_MMP 0x100000
/*
* Special flag in the ext2 inode i_flag field that means that this is
/*
* Flags for mkjournal
- *
- * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
*/
-#define EXT2_MKJOURNAL_V1_SUPER 0x0000001
+#define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
+#define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
struct opaque_ext2_group_desc;
char * device_name;
struct ext2_super_block * super;
unsigned int blocksize;
- int cluster_ratio_bits;
+ int fragsize;
dgrp_t group_desc_count;
unsigned long desc_blocks;
struct opaque_ext2_group_desc * group_desc;
- int inode_blocks_per_group;
+ unsigned int inode_blocks_per_group;
ext2fs_inode_bitmap inode_map;
ext2fs_block_bitmap block_map;
/* XXX FIXME-64: not 64-bit safe, but not used? */
struct ext2_image_hdr * image_header;
__u32 umask;
time_t now;
+ int cluster_ratio_bits;
/*
* Reserved for future expansion
*/
- __u32 reserved[7];
+ __u32 reserved[6];
/*
* Reserved for the use of the calling application.
io_channel image_io;
/*
+ * Buffers for Multiple mount protection(MMP) block.
+ */
+ void *mmp_buf;
+ void *mmp_cmp;
+ int mmp_fd;
+
+ /*
+ * Time at which e2fsck last updated the MMP block.
+ */
+ long mmp_last_written;
+
+ /*
* More callback functions
*/
errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
EXT3_FEATURE_INCOMPAT_RECOVER|\
EXT3_FEATURE_INCOMPAT_EXTENTS|\
EXT4_FEATURE_INCOMPAT_FLEX_BG|\
+ EXT4_FEATURE_INCOMPAT_MMP|\
EXT4_FEATURE_INCOMPAT_64BIT)
#else
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
EXT3_FEATURE_INCOMPAT_RECOVER|\
EXT3_FEATURE_INCOMPAT_EXTENTS|\
EXT4_FEATURE_INCOMPAT_FLEX_BG|\
+ EXT4_FEATURE_INCOMPAT_MMP|\
EXT4_FEATURE_INCOMPAT_64BIT)
#endif
+#ifdef CONFIG_QUOTA
+#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
+ 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|\
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
+ EXT4_FEATURE_RO_COMPAT_QUOTA)
+#else
#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
EXT4_FEATURE_RO_COMPAT_BIGALLOC)
+#endif
/*
* These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
#define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
(fs)->cluster_ratio_bits)
+#if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
+typedef struct stat64 ext2fs_struct_stat;
+#else
+typedef struct stat ext2fs_struct_stat;
+#endif
+
+/*
+ * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
+ * avoid the fsync call.
+ */
+#define EXT2_FLAG_FLUSH_NO_SYNC 1
+
/*
* function prototypes
*/
extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
+extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
struct ext2_inode *inode);
extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
-extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
-extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
+extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
+ const struct ext2_inode *inode);
+extern void ext2fs_file_acl_block_set(ext2_filsys fs,
+ struct ext2_inode *inode, blk64_t blk);
/* block.c */
extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
/* closefs.c */
extern errcode_t ext2fs_close(ext2_filsys fs);
+extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
extern errcode_t ext2fs_flush(ext2_filsys fs);
+extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
dgrp_t group,
int *ret_meta_bg);
extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
+/* crc32c.c */
+extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
+extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
+
/* 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_zero_blocks(ext2_filsys fs, blk_t blk, int num,
blk_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
- blk64_t *ret_blk, int *ret_count);
+ blk64_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
- __u32 size, int flags,
+ __u32 num_blocks, 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,
+extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
int flags);
-extern int ext2fs_default_journal_size(__u64 blocks);
+extern int ext2fs_default_journal_size(__u64 num_blocks);
/* openfs.c */
extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
ext2_ino_t ino, int flags);
+/* mmp.c */
+errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
+errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
+errcode_t ext2fs_mmp_clear(ext2_filsys fs);
+errcode_t ext2fs_mmp_init(ext2_filsys fs);
+errcode_t ext2fs_mmp_start(ext2_filsys fs);
+errcode_t ext2fs_mmp_update(ext2_filsys fs);
+errcode_t ext2fs_mmp_stop(ext2_filsys fs);
+unsigned ext2fs_mmp_new_seq(void);
+
/* read_bb.c */
extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
ext2_badblocks_list *bb_list);
int bufsize);
extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
struct ext2_inode *f, int hostorder);
+extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
/* valid_blk.c */
extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
+extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
+ struct ext2_inode *inode);
/* version.c */
extern int ext2fs_parse_version_string(const char *ver_string);
extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
extern errcode_t ext2fs_get_memalign(unsigned long size,
unsigned long align, void *ptr);
+extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
+extern errcode_t ext2fs_get_array(unsigned long count,
+ unsigned long size, void *ptr);
+extern errcode_t ext2fs_get_arrayzero(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);
struct ext2_inode *inode);
extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
+extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
+extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
+extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
/*
* The actual inlined functions definitions themselves...
return 0;
}
-_INLINE_ errcode_t ext2fs_get_memalign(unsigned long size,
- unsigned long align, void *ptr)
-{
- errcode_t retval;
-
- if (align == 0)
- align = 8;
- retval = posix_memalign((void **) ptr, align, size);
- if (retval) {
- if (retval == ENOMEM)
- return EXT2_ET_NO_MEMORY;
- return retval;
- }
- return 0;
-}
-
_INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
{
void *pp;
return ((a - 1) / b) + 1;
}
+_INLINE_ int ext2fs_open_file(const char *pathname, int flags, mode_t mode)
+{
+ va_list args;
+
+ if (mode)
+#if defined(HAVE_OPEN64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
+ return open64(pathname, flags, mode);
+ else
+ return open64(pathname, flags);
+#else
+ return open(pathname, flags, mode);
+ else
+ return open(pathname, flags);
+#endif
+}
+
+_INLINE_ int ext2fs_stat(const char *path, ext2fs_struct_stat *buf)
+{
+#if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
+ return stat64(path, buf);
+#else
+ return stat(path, buf);
+#endif
+}
+
+_INLINE_ int ext2fs_fstat(int fd, ext2fs_struct_stat *buf)
+{
+#if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
+ return fstat64(fd, buf);
+#else
+ return fstat(fd, buf);
+#endif
+}
+
#undef _INLINE_
#endif
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff