/* SPDX-License-Identifier: GPL-2.0-or-later */

  /*

   *   Copyright (C) International Business Machines Corp., 2000-2002

   */
  
  #ifndef H_JFS_XATTR
  #define H_JFS_XATTR

  #include <linux/xattr.h>

  /*
   * jfs_ea_list describe the on-disk format of the extended attributes.
   * I know the null-terminator is redundant since namelen is stored, but
   * I am maintaining compatibility with OS/2 where possible.
   */
  struct jfs_ea {
  	u8 flag;	/* Unused? */
  	u8 namelen;	/* Length of name */
  	__le16 valuelen;	/* Length of value */

  	char name[];	/* Attribute name (includes null-terminator) */

  };			/* Value immediately follows name */
  
  struct jfs_ea_list {
  	__le32 size;		/* overall size */

  	struct jfs_ea ea[];	/* Variable length list */

  };
  
  /* Macros for defining maxiumum number of bytes supported for EAs */
  #define MAXEASIZE	65535
  #define MAXEALISTSIZE	MAXEASIZE
  
  /*
   * some macros for dealing with variable length EA lists.
   */
  #define EA_SIZE(ea) \
  	(sizeof (struct jfs_ea) + (ea)->namelen + 1 + \
  	 le16_to_cpu((ea)->valuelen))
  #define	NEXT_EA(ea) ((struct jfs_ea *) (((char *) (ea)) + (EA_SIZE (ea))))
  #define	FIRST_EA(ealist) ((ealist)->ea)
  #define	EALIST_SIZE(ealist) le32_to_cpu((ealist)->size)
  #define	END_EALIST(ealist) \
  	((struct jfs_ea *) (((char *) (ealist)) + EALIST_SIZE(ealist)))

  extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *,
  			  size_t, int);

  extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t);

  extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);

  extern const struct xattr_handler *jfs_xattr_handlers[];

  #ifdef CONFIG_JFS_SECURITY

  extern int jfs_init_security(tid_t, struct inode *, struct inode *,
  			     const struct qstr *);

  #else
  static inline int jfs_init_security(tid_t tid, struct inode *inode,

  				    struct inode *dir, const struct qstr *qstr)

  {
  	return 0;
  }
  #endif

  #endif	/* H_JFS_XATTR */