git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 AM |
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 AM |
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" | |
| 43 | #define XATTR_NAME_SMACK XATTR_SECURITY_PREFIX XATTR_SMACK_SUFFIX | |
| 44 | #define XATTR_NAME_SMACKIPIN XATTR_SECURITY_PREFIX XATTR_SMACK_IPIN | |
| 45 | #define XATTR_NAME_SMACKIPOUT XATTR_SECURITY_PREFIX XATTR_SMACK_IPOUT | |
| 46 | ||
| 47 | #define XATTR_CAPS_SUFFIX "capability" | |
| 48 | #define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX | |
| 49 | ||
| 5b0a2075 AB |
50 | struct inode; |
| 51 | struct dentry; | |
| 1da177e4 LT |
52 | |
| 53 | struct xattr_handler { | |
| bb435453 | 54 | const char *prefix; |
| 431547b3 CH |
55 | int flags; /* fs private flags passed back to the handlers */ |
| 56 | size_t (*list)(struct dentry *dentry, char *list, size_t list_size, | |
| 57 | const char *name, size_t name_len, int handler_flags); | |
| 58 | int (*get)(struct dentry *dentry, const char *name, void *buffer, | |
| 59 | size_t size, int handler_flags); | |
| 60 | int (*set)(struct dentry *dentry, const char *name, const void *buffer, | |
| 61 | size_t size, int flags, int handler_flags); | |
| 1da177e4 LT |
62 | }; |
| 63 | ||
| 42492594 | 64 | ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t); |
| 8f0cfa52 | 65 | ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t); |
| 659564c8 | 66 | ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size); |
| b1ab7e4b | 67 | int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int); |
| 8f0cfa52 DH |
68 | int vfs_setxattr(struct dentry *, const char *, const void *, size_t, int); |
| 69 | int vfs_removexattr(struct dentry *, const char *); | |
| 5be196e5 | 70 | |
| 1da177e4 LT |
71 | ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); |
| 72 | ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); | |
| 73 | int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); | |
| 74 | int generic_removexattr(struct dentry *dentry, const char *name); | |
| 75 | ||
| 5b0a2075 AB |
76 | #endif /* __KERNEL__ */ |
| 77 | ||
| 1da177e4 | 78 | #endif /* _LINUX_XATTR_H */ |