73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
|
/*
|
||
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
||
|
|
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This copyrighted material is made available to anyone wishing to use,
|
||
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
||
|
|
* of the GNU General Public License version 2.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __EATTR_DOT_H__
|
||
|
|
#define __EATTR_DOT_H__
|
||
|
|
|
||
|
|
struct gfs2_inode;
|
||
|
|
struct iattr;
|
||
|
|
|
||
|
|
#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
|
||
|
|
#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
|
||
|
|
|
||
|
|
#define GFS2_EA_SIZE(ea) \
|
||
|
|
ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
|
||
|
|
((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
|
||
|
|
(sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
|
||
|
|
|
||
|
|
#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
|
||
|
|
#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
|
||
|
|
|
||
|
|
#define GFS2_EAREQ_SIZE_STUFFED(er) \
|
||
|
|
ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
|
||
|
|
|
||
|
|
#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
|
||
|
|
#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
|
||
|
|
|
||
|
|
#define GFS2_EA2DATAPTRS(ea) \
|
||
|
|
((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
|
||
|
|
|
||
|
|
#define GFS2_EA2NEXT(ea) \
|
||
|
|
((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
|
||
|
|
|
||
|
|
#define GFS2_EA_BH2FIRST(bh) \
|
||
|
|
((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
|
||
|
|
|
||
|
|
struct gfs2_ea_request {
|
||
|
|
const char *er_name;
|
||
|
|
char *er_data;
|
||
|
|
unsigned int er_name_len;
|
||
|
|
unsigned int er_data_len;
|
||
|
|
unsigned int er_type; /* GFS2_EATYPE_... */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct gfs2_ea_location {
|
||
|
|
struct buffer_head *el_bh;
|
||
|
|
struct gfs2_ea_header *el_ea;
|
||
|
|
struct gfs2_ea_header *el_prev;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern int gfs2_xattr_get(struct inode *inode, int type, const char *name,
|
||
|
|
void *buffer, size_t size);
|
||
|
|
extern int gfs2_xattr_set(struct inode *inode, int type, const char *name,
|
||
|
|
const void *value, size_t size, int flags);
|
||
|
|
extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
|
||
|
|
extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
|
||
|
|
|
||
|
|
/* Exported to acl.c */
|
||
|
|
|
||
|
|
extern int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
|
||
|
|
struct gfs2_ea_location *el);
|
||
|
|
extern int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
|
||
|
|
char *data, size_t size);
|
||
|
|
extern int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
|
||
|
|
struct iattr *attr, char *data);
|
||
|
|
|
||
|
|
#endif /* __EATTR_DOT_H__ */
|