\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /usr/include/ext2fs/

Viewing File: ext2_ext_attr.h

/*
  File: linux/ext2_ext_attr.h

  On-disk format of extended attributes for the ext2 filesystem.

  (C) 2000 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/

#ifndef _EXT2_EXT_ATTR_H
#define _EXT2_EXT_ATTR_H
/* Magic value in attribute blocks */
#define EXT2_EXT_ATTR_MAGIC_v1		0xEA010000
#define EXT2_EXT_ATTR_MAGIC		0xEA020000

/* Maximum number of references to one attribute block */
#define EXT2_EXT_ATTR_REFCOUNT_MAX	1024

struct ext2_ext_attr_header {
	__u32	h_magic;	/* magic number for identification */
	__u32	h_refcount;	/* reference count */
	__u32	h_blocks;	/* number of disk blocks used */
	__u32	h_hash;		/* hash value of all attributes */
	__u32	h_reserved[4];	/* zero right now */
};

struct ext2_ext_attr_entry {
	__u8	e_name_len;	/* length of name */
	__u8	e_name_index;	/* attribute name index */
	__u16	e_value_offs;	/* offset in disk block of value */
	__u32	e_value_block;	/* disk block attribute is stored on (n/i) */
	__u32	e_value_size;	/* size of attribute value */
	__u32	e_hash;		/* hash value of name and value */
#if 0
	char	e_name[0];	/* attribute name */
#endif
};

#define EXT2_EXT_ATTR_PAD_BITS		2
#define EXT2_EXT_ATTR_PAD		((unsigned) 1<<EXT2_EXT_ATTR_PAD_BITS)
#define EXT2_EXT_ATTR_ROUND		(EXT2_EXT_ATTR_PAD-1)
#define EXT2_EXT_ATTR_LEN(name_len) \
	(((name_len) + EXT2_EXT_ATTR_ROUND + \
	sizeof(struct ext2_ext_attr_entry)) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_EXT_ATTR_NEXT(entry) \
	( (struct ext2_ext_attr_entry *)( \
	  (char *)(entry) + EXT2_EXT_ATTR_LEN((entry)->e_name_len)) )
#define EXT2_EXT_ATTR_SIZE(size) \
	(((size) + EXT2_EXT_ATTR_ROUND) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_EXT_IS_LAST_ENTRY(entry) (*((__u32 *)(entry)) == 0UL)
#define EXT2_EXT_ATTR_NAME(entry) \
	(((char *) (entry)) + sizeof(struct ext2_ext_attr_entry))
#define EXT2_XATTR_LEN(name_len) \
	(((name_len) + EXT2_EXT_ATTR_ROUND + \
	sizeof(struct ext2_xattr_entry)) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_XATTR_SIZE(size) \
	(((size) + EXT2_EXT_ATTR_ROUND) & ~EXT2_EXT_ATTR_ROUND)

#ifdef __KERNEL__
# ifdef CONFIG_EXT2_FS_EXT_ATTR
extern int ext2_get_ext_attr(struct inode *, const char *, char *, size_t, int);
extern int ext2_set_ext_attr(struct inode *, const char *, char *, size_t, int);
extern void ext2_ext_attr_free_inode(struct inode *inode);
extern void ext2_ext_attr_put_super(struct super_block *sb);
extern int ext2_ext_attr_init(void);
extern void ext2_ext_attr_done(void);
# else
#  define ext2_get_ext_attr NULL
#  define ext2_set_ext_attr NULL
# endif
#endif  /* __KERNEL__ */
#endif  /* _EXT2_EXT_ATTR_H */