1/*
 2 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 3 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 4 *
 5 * This copyrighted material is made available to anyone wishing to use,
 6 * modify, copy, or redistribute it subject to the terms and conditions
 7 * of the GNU General Public License version 2.
 8 */
 9
10#ifndef __EATTR_DOT_H__
11#define __EATTR_DOT_H__
12
13struct gfs2_inode;
14struct iattr;
15
16#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
17#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
18
19#define GFS2_EA_SIZE(ea) \
20ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
21      ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
22				  (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
23
24#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
25#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
26
27#define GFS2_EAREQ_SIZE_STUFFED(er) \
28ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
29
30#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
31#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
32
33#define GFS2_EA2DATAPTRS(ea) \
34((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
35
36#define GFS2_EA2NEXT(ea) \
37((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
38
39#define GFS2_EA_BH2FIRST(bh) \
40((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
41
42struct gfs2_ea_request {
43	const char *er_name;
44	char *er_data;
45	unsigned int er_name_len;
46	unsigned int er_data_len;
47	unsigned int er_type; /* GFS2_EATYPE_... */
48};
49
50struct gfs2_ea_location {
51	struct buffer_head *el_bh;
52	struct gfs2_ea_header *el_ea;
53	struct gfs2_ea_header *el_prev;
54};
55
56extern int __gfs2_xattr_set(struct inode *inode, const char *name,
57			    const void *value, size_t size,
58			    int flags, int type);
59extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
60extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
61
62/* Exported to acl.c */
63
64extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data);
65extern int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data);
66
67#endif /* __EATTR_DOT_H__ */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 4 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 
 
 
 
 5 */
 6
 7#ifndef __EATTR_DOT_H__
 8#define __EATTR_DOT_H__
 9
10struct gfs2_inode;
11struct iattr;
12
13#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
14#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
15
16#define GFS2_EA_SIZE(ea) \
17ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
18      ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
19				  (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
20
21#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
22#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
23
24#define GFS2_EAREQ_SIZE_STUFFED(er) \
25ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
26
27#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
28#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
29
30#define GFS2_EA2DATAPTRS(ea) \
31((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
32
33#define GFS2_EA2NEXT(ea) \
34((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
35
36#define GFS2_EA_BH2FIRST(bh) \
37((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
38
39struct gfs2_ea_request {
40	const char *er_name;
41	char *er_data;
42	unsigned int er_name_len;
43	unsigned int er_data_len;
44	unsigned int er_type; /* GFS2_EATYPE_... */
45};
46
47struct gfs2_ea_location {
48	struct buffer_head *el_bh;
49	struct gfs2_ea_header *el_ea;
50	struct gfs2_ea_header *el_prev;
51};
52
53extern int __gfs2_xattr_set(struct inode *inode, const char *name,
54			    const void *value, size_t size,
55			    int flags, int type);
56extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
57extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
58
59/* Exported to acl.c */
60
61extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data);
 
62
63#endif /* __EATTR_DOT_H__ */