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1 | /* |
2 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | #ifndef __XFS_CAP_H__ | |
33 | #define __XFS_CAP_H__ | |
34 | ||
35 | /* | |
36 | * Capabilities | |
37 | */ | |
38 | typedef __uint64_t xfs_cap_value_t; | |
39 | ||
40 | typedef struct xfs_cap_set { | |
41 | xfs_cap_value_t cap_effective; /* use in capability checks */ | |
42 | xfs_cap_value_t cap_permitted; /* combined with file attrs */ | |
43 | xfs_cap_value_t cap_inheritable;/* pass through exec */ | |
44 | } xfs_cap_set_t; | |
45 | ||
46 | /* On-disk XFS extended attribute names */ | |
47 | #define SGI_CAP_FILE "SGI_CAP_FILE" | |
48 | #define SGI_CAP_FILE_SIZE (sizeof(SGI_CAP_FILE)-1) | |
49 | #define SGI_CAP_LINUX "SGI_CAP_LINUX" | |
50 | #define SGI_CAP_LINUX_SIZE (sizeof(SGI_CAP_LINUX)-1) | |
51 | ||
52 | /* | |
53 | * For Linux, we take the bitfields directly from capability.h | |
54 | * and no longer attempt to keep this attribute ondisk compatible | |
55 | * with IRIX. Since this attribute is only set on exectuables, | |
56 | * it just doesn't make much sense to try. We do use a different | |
57 | * named attribute though, to avoid confusion. | |
58 | */ | |
59 | ||
60 | #ifdef __KERNEL__ | |
61 | ||
62 | #ifdef CONFIG_FS_POSIX_CAP | |
63 | ||
64 | #include <linux/posix_cap_xattr.h> | |
65 | ||
66 | struct vnode; | |
67 | ||
68 | extern int xfs_cap_vhascap(struct vnode *); | |
69 | extern int xfs_cap_vset(struct vnode *, void *, size_t); | |
70 | extern int xfs_cap_vget(struct vnode *, void *, size_t); | |
71 | extern int xfs_cap_vremove(struct vnode *vp); | |
72 | ||
73 | #define _CAP_EXISTS xfs_cap_vhascap | |
74 | ||
75 | #else | |
76 | #define xfs_cap_vset(v,p,sz) (-EOPNOTSUPP) | |
77 | #define xfs_cap_vget(v,p,sz) (-EOPNOTSUPP) | |
78 | #define xfs_cap_vremove(v) (-EOPNOTSUPP) | |
79 | #define _CAP_EXISTS (NULL) | |
80 | #endif | |
81 | ||
82 | #endif /* __KERNEL__ */ | |
83 | ||
84 | #endif /* __XFS_CAP_H__ */ |