| #include <sys/types.h> |
| |
| #ifndef _SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H |
| #define _SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H 1 |
| |
| #define EXT4_XATTR_MAGIC 0xEA020000 |
| #define EXT4_XATTR_INDEX_SECURITY 6 |
| |
| struct ext4_xattr_header { |
| __le32 h_magic; |
| __le32 h_refcount; |
| __le32 h_blocks; |
| __le32 h_hash; |
| __le32 h_checksum; |
| __u32 h_reserved[3]; |
| }; |
| |
| struct ext4_xattr_ibody_header { |
| __le32 h_magic; |
| }; |
| |
| struct ext4_xattr_entry { |
| __u8 e_name_len; |
| __u8 e_name_index; |
| __le16 e_value_offs; |
| __le32 e_value_block; |
| __le32 e_value_size; |
| __le32 e_hash; |
| char e_name[0]; |
| }; |
| |
| #define EXT4_XATTR_PAD_BITS 2 |
| #define EXT4_XATTR_PAD (1 << EXT4_XATTR_PAD_BITS) |
| #define EXT4_XATTR_ROUND (EXT4_XATTR_PAD - 1) |
| #define EXT4_XATTR_LEN(name_len) \ |
| (((name_len) + EXT4_XATTR_ROUND + sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND) |
| #define EXT4_XATTR_NEXT(entry) \ |
| ((struct ext4_xattr_entry*)((char*)(entry) + EXT4_XATTR_LEN((entry)->e_name_len))) |
| #define EXT4_XATTR_SIZE(size) (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND) |
| #define IS_LAST_ENTRY(entry) (*(uint32_t*)(entry) == 0) |
| |
| #endif /* !_SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H */ |