Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | File: linux/xattr.h | |
3 | ||
4 | Extended attributes handling. | |
5 | ||
6 | Copyright (C) 2001 by Andreas Gruenbacher <a.gruenbacher@computer.org> | |
7 | Copyright (c) 2001-2002 Silicon Graphics, Inc. All Rights Reserved. | |
8 | Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com> | |
9 | */ | |
10 | #ifndef _LINUX_XATTR_H | |
11 | #define _LINUX_XATTR_H | |
12 | ||
13 | #define XATTR_CREATE 0x1 /* set value, fail if attr already exists */ | |
14 | #define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */ | |
15 | ||
5b0a2075 AB |
16 | #ifdef __KERNEL__ |
17 | ||
18 | #include <linux/types.h> | |
19 | ||
e0ad7b07 | 20 | /* Namespaces */ |
21 | #define XATTR_OS2_PREFIX "os2." | |
22 | #define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1) | |
23 | ||
1da177e4 | 24 | #define XATTR_SECURITY_PREFIX "security." |
e0ad7b07 | 25 | #define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1) |
26 | ||
27 | #define XATTR_SYSTEM_PREFIX "system." | |
28 | #define XATTR_SYSTEM_PREFIX_LEN (sizeof (XATTR_SYSTEM_PREFIX) - 1) | |
29 | ||
30 | #define XATTR_TRUSTED_PREFIX "trusted." | |
31 | #define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1) | |
32 | ||
33 | #define XATTR_USER_PREFIX "user." | |
34 | #define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1) | |
35 | ||
af4f1360 MZ |
36 | /* Security namespace */ |
37 | #define XATTR_SELINUX_SUFFIX "selinux" | |
38 | #define XATTR_NAME_SELINUX XATTR_SECURITY_PREFIX XATTR_SELINUX_SUFFIX | |
39 | ||
40 | #define XATTR_SMACK_SUFFIX "SMACK64" | |
41 | #define XATTR_SMACK_IPIN "SMACK64IPIN" | |
42 | #define XATTR_SMACK_IPOUT "SMACK64IPOUT" | |
676dac4b | 43 | #define XATTR_SMACK_EXEC "SMACK64EXEC" |
5c6d1125 | 44 | #define XATTR_SMACK_TRANSMUTE "SMACK64TRANSMUTE" |
7898e1f8 | 45 | #define XATTR_SMACK_MMAP "SMACK64MMAP" |
af4f1360 MZ |
46 | #define XATTR_NAME_SMACK XATTR_SECURITY_PREFIX XATTR_SMACK_SUFFIX |
47 | #define XATTR_NAME_SMACKIPIN XATTR_SECURITY_PREFIX XATTR_SMACK_IPIN | |
48 | #define XATTR_NAME_SMACKIPOUT XATTR_SECURITY_PREFIX XATTR_SMACK_IPOUT | |
676dac4b | 49 | #define XATTR_NAME_SMACKEXEC XATTR_SECURITY_PREFIX XATTR_SMACK_EXEC |
5c6d1125 | 50 | #define XATTR_NAME_SMACKTRANSMUTE XATTR_SECURITY_PREFIX XATTR_SMACK_TRANSMUTE |
7898e1f8 | 51 | #define XATTR_NAME_SMACKMMAP XATTR_SECURITY_PREFIX XATTR_SMACK_MMAP |
af4f1360 MZ |
52 | |
53 | #define XATTR_CAPS_SUFFIX "capability" | |
54 | #define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX | |
55 | ||
5b0a2075 AB |
56 | struct inode; |
57 | struct dentry; | |
1da177e4 LT |
58 | |
59 | struct xattr_handler { | |
bb435453 | 60 | const char *prefix; |
431547b3 CH |
61 | int flags; /* fs private flags passed back to the handlers */ |
62 | size_t (*list)(struct dentry *dentry, char *list, size_t list_size, | |
63 | const char *name, size_t name_len, int handler_flags); | |
64 | int (*get)(struct dentry *dentry, const char *name, void *buffer, | |
65 | size_t size, int handler_flags); | |
66 | int (*set)(struct dentry *dentry, const char *name, const void *buffer, | |
67 | size_t size, int flags, int handler_flags); | |
1da177e4 LT |
68 | }; |
69 | ||
42492594 | 70 | ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t); |
8f0cfa52 | 71 | ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t); |
659564c8 | 72 | ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size); |
b1ab7e4b | 73 | int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int); |
8f0cfa52 DH |
74 | int vfs_setxattr(struct dentry *, const char *, const void *, size_t, int); |
75 | int vfs_removexattr(struct dentry *, const char *); | |
5be196e5 | 76 | |
1da177e4 LT |
77 | ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); |
78 | ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); | |
79 | int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); | |
80 | int generic_removexattr(struct dentry *dentry, const char *name); | |
81 | ||
5b0a2075 AB |
82 | #endif /* __KERNEL__ */ |
83 | ||
1da177e4 | 84 | #endif /* _LINUX_XATTR_H */ |