2 File: linux/reiserfs_xattr.h
5 #ifndef _LINUX_REISERFS_XATTR_H
6 #define _LINUX_REISERFS_XATTR_H
8 #include <linux/types.h>
10 /* Magic value in header */
11 #define REISERFS_XATTR_MAGIC 0x52465841 /* "RFXA" */
13 struct reiserfs_xattr_header {
14 __le32 h_magic; /* magic number for identification */
15 __le32 h_hash; /* hash of the value */
20 #include <linux/init.h>
21 #include <linux/list.h>
22 #include <linux/rwsem.h>
23 #include <linux/reiserfs_fs_i.h>
24 #include <linux/reiserfs_fs.h>
32 struct reiserfs_xattr_handler {
36 int (*get) (struct inode * inode, const char *name, void *buffer,
38 int (*set) (struct inode * inode, const char *name, const void *buffer,
39 size_t size, int flags);
40 int (*del) (struct inode * inode, const char *name);
41 int (*list) (struct inode * inode, const char *name, int namelen,
43 struct list_head handlers;
46 int reiserfs_xattr_register_handlers(void) __init;
47 void reiserfs_xattr_unregister_handlers(void);
48 int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
49 int reiserfs_delete_xattrs(struct inode *inode);
50 int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs);
52 #ifdef CONFIG_REISERFS_FS_XATTR
53 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
54 ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
55 void *buffer, size_t size);
56 int reiserfs_setxattr(struct dentry *dentry, const char *name,
57 const void *value, size_t size, int flags);
58 ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
59 int reiserfs_removexattr(struct dentry *dentry, const char *name);
60 int reiserfs_permission(struct inode *inode, int mask);
62 int reiserfs_xattr_del(struct inode *, const char *);
63 int reiserfs_xattr_get(const struct inode *, const char *, void *, size_t);
64 int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int);
66 extern struct reiserfs_xattr_handler user_handler;
67 extern struct reiserfs_xattr_handler trusted_handler;
68 extern struct reiserfs_xattr_handler security_handler;
70 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
72 init_rwsem(&REISERFS_I(inode)->i_xattr_sem);
77 #define reiserfs_getxattr NULL
78 #define reiserfs_setxattr NULL
79 #define reiserfs_listxattr NULL
80 #define reiserfs_removexattr NULL
82 #define reiserfs_permission NULL
84 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
87 #endif /* CONFIG_REISERFS_FS_XATTR */
89 #endif /* __KERNEL__ */
91 #endif /* _LINUX_REISERFS_XATTR_H */