1 #include <sys/types.h> 2 3 #ifndef _SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H 4 #define _SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H 1 5 6 #define EXT4_XATTR_MAGIC 0xEA020000 7 #define EXT4_XATTR_INDEX_SECURITY 6 8 9 struct ext4_xattr_header { 10 __le32 h_magic; 11 __le32 h_refcount; 12 __le32 h_blocks; 13 __le32 h_hash; 14 __le32 h_checksum; 15 __u32 h_reserved[3]; 16 }; 17 18 struct ext4_xattr_ibody_header { 19 __le32 h_magic; 20 }; 21 22 struct ext4_xattr_entry { 23 __u8 e_name_len; 24 __u8 e_name_index; 25 __le16 e_value_offs; 26 __le32 e_value_block; 27 __le32 e_value_size; 28 __le32 e_hash; 29 char e_name[0]; 30 }; 31 32 #define EXT4_XATTR_PAD_BITS 2 33 #define EXT4_XATTR_PAD (1<<EXT4_XATTR_PAD_BITS) 34 #define EXT4_XATTR_ROUND (EXT4_XATTR_PAD-1) 35 #define EXT4_XATTR_LEN(name_len) \ 36 (((name_len) + EXT4_XATTR_ROUND + \ 37 sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND) 38 #define EXT4_XATTR_NEXT(entry) \ 39 ((struct ext4_xattr_entry *)( \ 40 (char *)(entry) + EXT4_XATTR_LEN((entry)->e_name_len))) 41 #define EXT4_XATTR_SIZE(size) \ 42 (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND) 43 #define IS_LAST_ENTRY(entry) (*(uint32_t *)(entry) == 0) 44 45 #endif /* !_SYSTEM_EXTRAS_EXT4_UTILS_XATTR_H */ 46