xref: /titanic_52/usr/src/common/xattr/xattr_common.c (revision 5763ba1e357fad1d57b5875c499307b7ea6e2cd4)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <sys/attr.h>
29 #if defined(_KERNEL)
30 #include <sys/systm.h>
31 #else
32 #include <strings.h>
33 #endif
34 
35 /*
36  * This table maps each system attribute to its option and its view.
37  * All new system attrs must be added to this table.  To add a new view,
38  * add another entry to xattr_dirents[] and update xattr_view_t in sys/attr.h.
39  * Also, xattr_file_pathconf() and sys/unistd.h should be updated to add
40  * return values for the new view.
41  */
42 
43 static xattr_entry_t xattrs[F_ATTR_ALL] = {
44 	{ A_ARCHIVE, O_ARCHIVE, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
45 	{ A_HIDDEN, O_HIDDEN, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
46 	{ A_READONLY, O_READONLY, XATTR_VIEW_READWRITE,
47 	    DATA_TYPE_BOOLEAN_VALUE },
48 	{ A_SYSTEM, O_SYSTEM, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
49 	{ A_APPENDONLY, O_APPENDONLY, XATTR_VIEW_READWRITE,
50 	    DATA_TYPE_BOOLEAN_VALUE },
51 	{ A_NODUMP, O_NODUMP, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
52 	{ A_IMMUTABLE, O_IMMUTABLE, XATTR_VIEW_READWRITE,
53 	    DATA_TYPE_BOOLEAN_VALUE },
54 	{ A_AV_MODIFIED, O_AV_MODIFIED, XATTR_VIEW_READWRITE,
55 	    DATA_TYPE_BOOLEAN_VALUE },
56 	{ A_OPAQUE, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_BOOLEAN_VALUE },
57 	{ A_AV_SCANSTAMP, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT8_ARRAY },
58 	{ A_AV_QUARANTINED, O_AV_QUARANTINED, XATTR_VIEW_READWRITE,
59 	    DATA_TYPE_BOOLEAN_VALUE },
60 	{ A_NOUNLINK, O_NOUNLINK, XATTR_VIEW_READWRITE,
61 	    DATA_TYPE_BOOLEAN_VALUE },
62 	{ A_CRTIME, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_UINT64_ARRAY },
63 	{ A_OWNERSID, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_NVLIST },
64 	{ A_GROUPSID, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_NVLIST },
65 	{ A_FSID, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT64 },
66 	{ A_MDEV, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT16 },
67 };
68 
69 const char *
70 attr_to_name(f_attr_t attr)
71 {
72 	if (attr >= F_ATTR_ALL || attr < 0)
73 		return (NULL);
74 
75 	return (xattrs[attr].x_name);
76 }
77 
78 const char *
79 attr_to_option(f_attr_t attr)
80 {
81 	if (attr >= F_ATTR_ALL || attr < 0)
82 		return (NULL);
83 
84 	return (xattrs[attr].x_option);
85 }
86 
87 f_attr_t
88 name_to_attr(const char *name)
89 {
90 	int i;
91 
92 	for (i = 0; i < F_ATTR_ALL; i++) {
93 		if (strcmp(name, xattrs[i].x_name) == 0)
94 			return (i);
95 	}
96 
97 	return (F_ATTR_INVAL);
98 }
99 
100 f_attr_t
101 option_to_attr(const char *option)
102 {
103 	int i;
104 
105 	for (i = 0; i < F_ATTR_ALL; i++) {
106 		if (strcmp(option, xattrs[i].x_option) == 0)
107 			return (i);
108 	}
109 
110 	return (F_ATTR_INVAL);
111 }
112 
113 xattr_view_t
114 attr_to_xattr_view(f_attr_t attr)
115 {
116 	if (attr >= F_ATTR_ALL || attr < 0)
117 		return (NULL);
118 
119 	return (xattrs[attr].x_xattr_view);
120 }
121 
122 int
123 attr_count(void)
124 {
125 	return (F_ATTR_ALL);
126 }
127 
128 data_type_t
129 attr_to_data_type(f_attr_t attr)
130 {
131 	if (attr >= F_ATTR_ALL || attr < 0)
132 		return (DATA_TYPE_UNKNOWN);
133 
134 	return (xattrs[attr].x_data_type);
135 }
136