usr/src/common/xattr/xattr_common.c

   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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #include <sys/attr.h>
  26 #if defined(_KERNEL)
  27 #include <sys/systm.h>
  28 #else
  29 #include <strings.h>
  30 #endif
  31
  32 /*
  33  * This table maps each system attribute to its option and its view.
  34  * All new system attrs must be added to this table.  To add a new view,
  35  * add another entry to xattr_dirents[] and update xattr_view_t in sys/attr.h.
  36  * Also, xattr_file_pathconf() and sys/unistd.h should be updated to add
  37  * return values for the new view.
  38  */
  39
  40 static xattr_entry_t xattrs[F_ATTR_ALL] = {
  41         { A_ARCHIVE, O_ARCHIVE, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  42         { A_HIDDEN, O_HIDDEN, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  43         { A_READONLY, O_READONLY, XATTR_VIEW_READWRITE,
  44             DATA_TYPE_BOOLEAN_VALUE },
  45         { A_SYSTEM, O_SYSTEM, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  46         { A_APPENDONLY, O_APPENDONLY, XATTR_VIEW_READWRITE,
  47             DATA_TYPE_BOOLEAN_VALUE },
  48         { A_NODUMP, O_NODUMP, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  49         { A_IMMUTABLE, O_IMMUTABLE, XATTR_VIEW_READWRITE,
  50             DATA_TYPE_BOOLEAN_VALUE },
  51         { A_AV_MODIFIED, O_AV_MODIFIED, XATTR_VIEW_READWRITE,
  52             DATA_TYPE_BOOLEAN_VALUE },
  53         { A_OPAQUE, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_BOOLEAN_VALUE },
  54         { A_AV_SCANSTAMP, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT8_ARRAY },
  55         { A_AV_QUARANTINED, O_AV_QUARANTINED, XATTR_VIEW_READWRITE,
  56             DATA_TYPE_BOOLEAN_VALUE },
  57         { A_NOUNLINK, O_NOUNLINK, XATTR_VIEW_READWRITE,
  58             DATA_TYPE_BOOLEAN_VALUE },
  59         { A_CRTIME, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_UINT64_ARRAY },
  60         { A_OWNERSID, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_NVLIST },
  61         { A_GROUPSID, O_NONE, XATTR_VIEW_READWRITE, DATA_TYPE_NVLIST },
  62         { A_FSID, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT64 },
  63         { A_REPARSE_POINT, O_REPARSE_POINT, XATTR_VIEW_READONLY,
  64             DATA_TYPE_BOOLEAN_VALUE },
  65         { A_GEN, O_NONE, XATTR_VIEW_READONLY, DATA_TYPE_UINT64 },
  66         { A_OFFLINE, O_OFFLINE, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  67         { A_SPARSE, O_SPARSE, XATTR_VIEW_READWRITE, DATA_TYPE_BOOLEAN_VALUE },
  68 };
  69
  70 const char *
  71 attr_to_name(f_attr_t attr)
  72 {
  73         if (attr >= F_ATTR_ALL || attr < 0)
  74                 return (NULL);
  75
  76         return (xattrs[attr].x_name);
  77 }
  78
  79 const char *
  80 attr_to_option(f_attr_t attr)
  81 {
  82         if (attr >= F_ATTR_ALL || attr < 0)
  83                 return (NULL);
  84
  85         return (xattrs[attr].x_option);
  86 }
  87
  88 f_attr_t
  89 name_to_attr(const char *name)
  90 {
  91         int i;
  92
  93         for (i = 0; i < F_ATTR_ALL; i++) {
  94                 if (strcmp(name, xattrs[i].x_name) == 0)
  95                         return (i);
  96         }
  97
  98         return (F_ATTR_INVAL);
  99 }
 100
 101 f_attr_t
 102 option_to_attr(const char *option)
 103 {
 104         int i;
 105
 106         for (i = 0; i < F_ATTR_ALL; i++) {
 107                 if (strcmp(option, xattrs[i].x_option) == 0)
 108                         return (i);
 109         }
 110
 111         return (F_ATTR_INVAL);
 112 }
 113
 114 xattr_view_t
 115 attr_to_xattr_view(f_attr_t attr)
 116 {
 117         if (attr >= F_ATTR_ALL || attr < 0)
 118                 return (XATTR_VIEW_INVALID);
 119
 120         return (xattrs[attr].x_xattr_view);
 121 }
 122
 123 int
 124 attr_count(void)
 125 {
 126         return (F_ATTR_ALL);
 127 }
 128
 129 data_type_t
 130 attr_to_data_type(f_attr_t attr)
 131 {
 132         if (attr >= F_ATTR_ALL || attr < 0)
 133                 return (DATA_TYPE_UNKNOWN);
 134
 135         return (xattrs[attr].x_data_type);
 136 }