diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/ext4/xattr.h')
| -rw-r--r-- | ANDROID_3.4.5/fs/ext4/xattr.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/ANDROID_3.4.5/fs/ext4/xattr.h b/ANDROID_3.4.5/fs/ext4/xattr.h deleted file mode 100644 index 25b7387f..00000000 --- a/ANDROID_3.4.5/fs/ext4/xattr.h +++ /dev/null @@ -1,155 +0,0 @@ -/* - File: fs/ext4/xattr.h - - On-disk format of extended attributes for the ext4 filesystem. - - (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org> -*/ - -#include <linux/xattr.h> - -/* Magic value in attribute blocks */ -#define EXT4_XATTR_MAGIC 0xEA020000 - -/* Maximum number of references to one attribute block */ -#define EXT4_XATTR_REFCOUNT_MAX 1024 - -/* Name indexes */ -#define EXT4_XATTR_INDEX_USER 1 -#define EXT4_XATTR_INDEX_POSIX_ACL_ACCESS 2 -#define EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT 3 -#define EXT4_XATTR_INDEX_TRUSTED 4 -#define EXT4_XATTR_INDEX_LUSTRE 5 -#define EXT4_XATTR_INDEX_SECURITY 6 - -struct ext4_xattr_header { - __le32 h_magic; /* magic number for identification */ - __le32 h_refcount; /* reference count */ - __le32 h_blocks; /* number of disk blocks used */ - __le32 h_hash; /* hash value of all attributes */ - __u32 h_reserved[4]; /* zero right now */ -}; - -struct ext4_xattr_ibody_header { - __le32 h_magic; /* magic number for identification */ -}; - -struct ext4_xattr_entry { - __u8 e_name_len; /* length of name */ - __u8 e_name_index; /* attribute name index */ - __le16 e_value_offs; /* offset in disk block of value */ - __le32 e_value_block; /* disk block attribute is stored on (n/i) */ - __le32 e_value_size; /* size of attribute value */ - __le32 e_hash; /* hash value of name and value */ - char e_name[0]; /* attribute name */ -}; - -#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 IHDR(inode, raw_inode) \ - ((struct ext4_xattr_ibody_header *) \ - ((void *)raw_inode + \ - EXT4_GOOD_OLD_INODE_SIZE + \ - EXT4_I(inode)->i_extra_isize)) -#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1)) - -# ifdef CONFIG_EXT4_FS_XATTR - -extern const struct xattr_handler ext4_xattr_user_handler; -extern const struct xattr_handler ext4_xattr_trusted_handler; -extern const struct xattr_handler ext4_xattr_acl_access_handler; -extern const struct xattr_handler ext4_xattr_acl_default_handler; -extern const struct xattr_handler ext4_xattr_security_handler; - -extern ssize_t ext4_listxattr(struct dentry *, char *, size_t); - -extern int ext4_xattr_get(struct inode *, int, const char *, void *, size_t); -extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int); -extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int); - -extern void ext4_xattr_delete_inode(handle_t *, struct inode *); -extern void ext4_xattr_put_super(struct super_block *); - -extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, - struct ext4_inode *raw_inode, handle_t *handle); - -extern int __init ext4_init_xattr(void); -extern void ext4_exit_xattr(void); - -extern const struct xattr_handler *ext4_xattr_handlers[]; - -# else /* CONFIG_EXT4_FS_XATTR */ - -static inline int -ext4_xattr_get(struct inode *inode, int name_index, const char *name, - void *buffer, size_t size, int flags) -{ - return -EOPNOTSUPP; -} - -static inline int -ext4_xattr_set(struct inode *inode, int name_index, const char *name, - const void *value, size_t size, int flags) -{ - return -EOPNOTSUPP; -} - -static inline int -ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, - const char *name, const void *value, size_t size, int flags) -{ - return -EOPNOTSUPP; -} - -static inline void -ext4_xattr_delete_inode(handle_t *handle, struct inode *inode) -{ -} - -static inline void -ext4_xattr_put_super(struct super_block *sb) -{ -} - -static __init inline int -ext4_init_xattr(void) -{ - return 0; -} - -static inline void -ext4_exit_xattr(void) -{ -} - -static inline int -ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, - struct ext4_inode *raw_inode, handle_t *handle) -{ - return -EOPNOTSUPP; -} - -#define ext4_xattr_handlers NULL - -# endif /* CONFIG_EXT4_FS_XATTR */ - -#ifdef CONFIG_EXT4_FS_SECURITY -extern int ext4_init_security(handle_t *handle, struct inode *inode, - struct inode *dir, const struct qstr *qstr); -#else -static inline int ext4_init_security(handle_t *handle, struct inode *inode, - struct inode *dir, const struct qstr *qstr) -{ - return 0; -} -#endif |