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#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 */
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