3e8962be91
little-endian objects annotated as such; again, obviously no changes of resulting code, we only replace __u16 with __le16, etc. in relevant places. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
139 lines
4.1 KiB
C
139 lines
4.1 KiB
C
/*
|
|
File: linux/reiserfs_xattr.h
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/init.h>
|
|
#include <linux/xattr.h>
|
|
|
|
/* Magic value in header */
|
|
#define REISERFS_XATTR_MAGIC 0x52465841 /* "RFXA" */
|
|
|
|
struct reiserfs_xattr_header {
|
|
__le32 h_magic; /* magic number for identification */
|
|
__le32 h_hash; /* hash of the value */
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct reiserfs_xattr_handler {
|
|
char *prefix;
|
|
int (*init)(void);
|
|
void (*exit)(void);
|
|
int (*get)(struct inode *inode, const char *name, void *buffer,
|
|
size_t size);
|
|
int (*set)(struct inode *inode, const char *name, const void *buffer,
|
|
size_t size, int flags);
|
|
int (*del)(struct inode *inode, const char *name);
|
|
int (*list)(struct inode *inode, const char *name, int namelen, char *out);
|
|
struct list_head handlers;
|
|
};
|
|
|
|
|
|
#ifdef CONFIG_REISERFS_FS_XATTR
|
|
#define is_reiserfs_priv_object(inode) IS_PRIVATE(inode)
|
|
#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
|
|
ssize_t reiserfs_getxattr (struct dentry *dentry, const char *name,
|
|
void *buffer, size_t size);
|
|
int reiserfs_setxattr (struct dentry *dentry, const char *name,
|
|
const void *value, size_t size, int flags);
|
|
ssize_t reiserfs_listxattr (struct dentry *dentry, char *buffer, size_t size);
|
|
int reiserfs_removexattr (struct dentry *dentry, const char *name);
|
|
int reiserfs_delete_xattrs (struct inode *inode);
|
|
int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs);
|
|
int reiserfs_xattr_init (struct super_block *sb, int mount_flags);
|
|
int reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd);
|
|
int reiserfs_permission_locked (struct inode *inode, int mask, struct nameidata *nd);
|
|
|
|
int reiserfs_xattr_del (struct inode *, const char *);
|
|
int reiserfs_xattr_get (const struct inode *, const char *, void *, size_t);
|
|
int reiserfs_xattr_set (struct inode *, const char *, const void *,
|
|
size_t, int);
|
|
|
|
extern struct reiserfs_xattr_handler user_handler;
|
|
extern struct reiserfs_xattr_handler trusted_handler;
|
|
#ifdef CONFIG_REISERFS_FS_SECURITY
|
|
extern struct reiserfs_xattr_handler security_handler;
|
|
#endif
|
|
|
|
int reiserfs_xattr_register_handlers (void) __init;
|
|
void reiserfs_xattr_unregister_handlers (void);
|
|
|
|
static inline void
|
|
reiserfs_write_lock_xattrs(struct super_block *sb)
|
|
{
|
|
down_write (&REISERFS_XATTR_DIR_SEM(sb));
|
|
}
|
|
static inline void
|
|
reiserfs_write_unlock_xattrs(struct super_block *sb)
|
|
{
|
|
up_write (&REISERFS_XATTR_DIR_SEM(sb));
|
|
}
|
|
static inline void
|
|
reiserfs_read_lock_xattrs(struct super_block *sb)
|
|
{
|
|
down_read (&REISERFS_XATTR_DIR_SEM(sb));
|
|
}
|
|
|
|
static inline void
|
|
reiserfs_read_unlock_xattrs(struct super_block *sb)
|
|
{
|
|
up_read (&REISERFS_XATTR_DIR_SEM(sb));
|
|
}
|
|
|
|
static inline void
|
|
reiserfs_write_lock_xattr_i(struct inode *inode)
|
|
{
|
|
down_write (&REISERFS_I(inode)->xattr_sem);
|
|
}
|
|
static inline void
|
|
reiserfs_write_unlock_xattr_i(struct inode *inode)
|
|
{
|
|
up_write (&REISERFS_I(inode)->xattr_sem);
|
|
}
|
|
static inline void
|
|
reiserfs_read_lock_xattr_i(struct inode *inode)
|
|
{
|
|
down_read (&REISERFS_I(inode)->xattr_sem);
|
|
}
|
|
|
|
static inline void
|
|
reiserfs_read_unlock_xattr_i(struct inode *inode)
|
|
{
|
|
up_read (&REISERFS_I(inode)->xattr_sem);
|
|
}
|
|
|
|
static inline void
|
|
reiserfs_mark_inode_private(struct inode *inode)
|
|
{
|
|
inode->i_flags |= S_PRIVATE;
|
|
}
|
|
|
|
#else
|
|
|
|
#define is_reiserfs_priv_object(inode) 0
|
|
#define reiserfs_mark_inode_private(inode)
|
|
#define reiserfs_getxattr NULL
|
|
#define reiserfs_setxattr NULL
|
|
#define reiserfs_listxattr NULL
|
|
#define reiserfs_removexattr NULL
|
|
#define reiserfs_write_lock_xattrs(sb)
|
|
#define reiserfs_write_unlock_xattrs(sb)
|
|
#define reiserfs_read_lock_xattrs(sb)
|
|
#define reiserfs_read_unlock_xattrs(sb)
|
|
|
|
#define reiserfs_permission NULL
|
|
|
|
#define reiserfs_xattr_register_handlers() 0
|
|
#define reiserfs_xattr_unregister_handlers()
|
|
|
|
static inline int reiserfs_delete_xattrs (struct inode *inode) { return 0; };
|
|
static inline int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs) { return 0; };
|
|
static inline int reiserfs_xattr_init (struct super_block *sb, int mount_flags)
|
|
{
|
|
sb->s_flags = (sb->s_flags & ~MS_POSIXACL); /* to be sure */
|
|
return 0;
|
|
};
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|