diff options
Diffstat (limited to 'usr/kinit/fstype/btrfs.h')
| -rw-r--r-- | usr/kinit/fstype/btrfs.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/usr/kinit/fstype/btrfs.h b/usr/kinit/fstype/btrfs.h new file mode 100644 index 0000000..459da12 --- /dev/null +++ b/usr/kinit/fstype/btrfs.h @@ -0,0 +1,57 @@ +#ifndef __BTRFS_H +#define __BTRFS_H + +# define BTRFS_MAGIC "_BHRfS_M" +# define BTRFS_MAGIC_L 8 + +/* + * Structure of the super block + */ +struct btrfs_super_block { + uint8_t csum[32]; + uint8_t fsid[16]; + uint64_t bytenr; + uint64_t flags; + uint8_t magic[8]; + uint64_t generation; + uint64_t root; + uint64_t chunk_root; + uint64_t log_root; + uint64_t log_root_transid; + uint64_t total_bytes; + uint64_t bytes_used; + uint64_t root_dir_objectid; + uint64_t num_devices; + uint32_t sectorsize; + uint32_t nodesize; + uint32_t leafsize; + uint32_t stripesize; + uint32_t sys_chunk_array_size; + uint64_t chunk_root_generation; + uint64_t compat_flags; + uint64_t compat_ro_flags; + uint64_t incompat_flags; + uint16_t csum_type; + uint8_t root_level; + uint8_t chunk_root_level; + uint8_t log_root_level; + struct btrfs_dev_item { + uint64_t devid; + uint64_t total_bytes; + uint64_t bytes_used; + uint32_t io_align; + uint32_t io_width; + uint32_t sector_size; + uint64_t type; + uint64_t generation; + uint64_t start_offset; + uint32_t dev_group; + uint8_t seek_speed; + uint8_t bandwidth; + uint8_t uuid[16]; + uint8_t fsid[16]; + } __attribute__ ((__packed__)) dev_item; + uint8_t label[256]; +} __attribute__ ((__packed__)); + +#endif /* __BTRFS_H */ |