2 * Copyright (c) 1999-2001 Robert N. M. Watson
5 * This software was developed by Robert Watson for the TrustedBSD Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Developed by the TrustedBSD Project.
32 * Support for extended filesystem attributes.
35 #ifndef _SYS_EXTATTR_H_
36 #define _SYS_EXTATTR_H_
39 * Defined name spaces for extended attributes. Numeric constants are passed
40 * via system calls, but a user-friendly string is also defined.
42 #define EXTATTR_NAMESPACE_EMPTY 0x00000000
43 #define EXTATTR_NAMESPACE_EMPTY_STRING "empty"
44 #define EXTATTR_NAMESPACE_USER 0x00000001
45 #define EXTATTR_NAMESPACE_USER_STRING "user"
46 #define EXTATTR_NAMESPACE_SYSTEM 0x00000002
47 #define EXTATTR_NAMESPACE_SYSTEM_STRING "system"
50 * The following macro is designed to initialize an array that maps
51 * extended-attribute namespace values to their names, e.g.:
53 * char *extattr_namespace_names[] = EXTATTR_NAMESPACE_NAMES;
55 #define EXTATTR_NAMESPACE_NAMES { \
56 EXTATTR_NAMESPACE_EMPTY_STRING, \
57 EXTATTR_NAMESPACE_USER_STRING, \
58 EXTATTR_NAMESPACE_SYSTEM_STRING }
62 #define EXTATTR_MAXNAMELEN NAME_MAX
66 int extattr_check_cred(struct vnode *vp, int attrnamespace,
67 struct ucred *cred, struct thread *td, int access);
70 #include <sys/cdefs.h>
75 int extattrctl(const char *_path, int _cmd, const char *_filename,
76 int _attrnamespace, const char *_attrname);
77 int extattr_delete_fd(int _fd, int _attrnamespace, const char *_attrname);
78 int extattr_delete_file(const char *_path, int _attrnamespace,
79 const char *_attrname);
80 int extattr_delete_link(const char *_path, int _attrnamespace,
81 const char *_attrname);
82 ssize_t extattr_get_fd(int _fd, int _attrnamespace, const char *_attrname,
83 void *_data, size_t _nbytes);
84 ssize_t extattr_get_file(const char *_path, int _attrnamespace,
85 const char *_attrname, void *_data, size_t _nbytes);
86 ssize_t extattr_get_link(const char *_path, int _attrnamespace,
87 const char *_attrname, void *_data, size_t _nbytes);
88 ssize_t extattr_list_fd(int _fd, int _attrnamespace, void *_data,
90 ssize_t extattr_list_file(const char *_path, int _attrnamespace, void *_data,
92 ssize_t extattr_list_link(const char *_path, int _attrnamespace, void *_data,
94 int extattr_set_fd(int _fd, int _attrnamespace, const char *_attrname,
95 const void *_data, size_t _nbytes);
96 int extattr_set_file(const char *_path, int _attrnamespace,
97 const char *_attrname, const void *_data, size_t _nbytes);
98 int extattr_set_link(const char *_path, int _attrnamespace,
99 const char *_attrname, const void *_data, size_t _nbytes);
102 #endif /* !_KERNEL */
103 #endif /* !_SYS_EXTATTR_H_ */