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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18#ifndef __XFS_CAP_H__
19#define __XFS_CAP_H__
20
21/*
22 * Capabilities
23 */
24typedef __uint64_t xfs_cap_value_t;
25
26typedef struct xfs_cap_set {
27 xfs_cap_value_t cap_effective; /* use in capability checks */
28 xfs_cap_value_t cap_permitted; /* combined with file attrs */
29 xfs_cap_value_t cap_inheritable;/* pass through exec */
30} xfs_cap_set_t;
31
32/* On-disk XFS extended attribute names */
33#define SGI_CAP_FILE "SGI_CAP_FILE"
34#define SGI_CAP_FILE_SIZE (sizeof(SGI_CAP_FILE)-1)
35#define SGI_CAP_LINUX "SGI_CAP_LINUX"
36#define SGI_CAP_LINUX_SIZE (sizeof(SGI_CAP_LINUX)-1)
37
38/*
39 * For Linux, we take the bitfields directly from capability.h
40 * and no longer attempt to keep this attribute ondisk compatible
Nathan Scottc41564b2006-03-29 08:55:14 +100041 * with IRIX. Since this attribute is only set on executables,
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 * it just doesn't make much sense to try. We do use a different
43 * named attribute though, to avoid confusion.
44 */
45
46#ifdef __KERNEL__
47
48#ifdef CONFIG_FS_POSIX_CAP
49
50#include <linux/posix_cap_xattr.h>
51
52struct vnode;
53
54extern int xfs_cap_vhascap(struct vnode *);
55extern int xfs_cap_vset(struct vnode *, void *, size_t);
56extern int xfs_cap_vget(struct vnode *, void *, size_t);
57extern int xfs_cap_vremove(struct vnode *vp);
58
59#define _CAP_EXISTS xfs_cap_vhascap
60
61#else
62#define xfs_cap_vset(v,p,sz) (-EOPNOTSUPP)
63#define xfs_cap_vget(v,p,sz) (-EOPNOTSUPP)
64#define xfs_cap_vremove(v) (-EOPNOTSUPP)
65#define _CAP_EXISTS (NULL)
66#endif
67
68#endif /* __KERNEL__ */
69
70#endif /* __XFS_CAP_H__ */