external/cddl/osnet/dist/common/zfs/zfs_prop.h

   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 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _ZFS_PROP_H
  27 #define _ZFS_PROP_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #include <sys/fs/zfs.h>
  32 #include <sys/types.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 /*
  39  * For index types (e.g. compression and checksum), we want the numeric value
  40  * in the kernel, but the string value in userland.
  41  */
  42 typedef enum {
  43         PROP_TYPE_NUMBER,       /* numeric value */
  44         PROP_TYPE_STRING,       /* string value */
  45         PROP_TYPE_INDEX         /* numeric value indexed by string */
  46 } zprop_type_t;
  47
  48 typedef enum {
  49         PROP_DEFAULT,
  50         PROP_READONLY,
  51         PROP_INHERIT,
  52         /*
  53          * ONETIME properties are a sort of conglomeration of READONLY
  54          * and INHERIT.  They can be set only during object creation,
  55          * after that they are READONLY.  If not explicitly set during
  56          * creation, they can be inherited.
  57          */
  58         PROP_ONETIME
  59 } zprop_attr_t;
  60
  61 typedef struct zfs_index {
  62         const char *pi_name;
  63         uint64_t pi_value;
  64 } zprop_index_t;
  65
  66 typedef struct {
  67         const char *pd_name;            /* human-readable property name */
  68         int pd_propnum;                 /* property number */
  69         zprop_type_t pd_proptype;       /* string, boolean, index, number */
  70         const char *pd_strdefault;      /* default for strings */
  71         uint64_t pd_numdefault;         /* for boolean / index / number */
  72         zprop_attr_t pd_attr;           /* default, readonly, inherit */
  73         int pd_types;                   /* bitfield of valid dataset types */
  74                                         /* fs | vol | snap; or pool */
  75         const char *pd_values;          /* string telling acceptable values */
  76         const char *pd_colname;         /* column header for "zfs list" */
  77         boolean_t pd_rightalign;        /* column alignment for "zfs list" */
  78         boolean_t pd_visible;           /* do we list this property with the */
  79                                         /* "zfs get" help message */
  80         const zprop_index_t *pd_table;  /* for index properties, a table */
  81                                         /* defining the possible values */
  82 } zprop_desc_t;
  83
  84 /*
  85  * zfs dataset property functions
  86  */
  87 void zfs_prop_init(void);
  88 zprop_type_t zfs_prop_get_type(zfs_prop_t);
  89 boolean_t zfs_prop_delegatable(zfs_prop_t prop);
  90 zprop_desc_t *zfs_prop_get_table(void);
  91
  92 /*
  93  * zpool property functions
  94  */
  95 void zpool_prop_init(void);
  96 zprop_type_t zpool_prop_get_type(zpool_prop_t);
  97 zprop_desc_t *zpool_prop_get_table(void);
  98
  99 /*
 100  * Common routines to initialize property tables
 101  */
 102 void register_impl(int, const char *, zprop_type_t, uint64_t,
 103     const char *, zprop_attr_t, int, const char *, const char *,
 104     boolean_t, boolean_t, const zprop_index_t *);
 105 void register_string(int, const char *, const char *, zprop_attr_t attr,
 106     int, const char *, const char *);
 107 void register_number(int, const char *, uint64_t, zprop_attr_t, int,
 108     const char *, const char *);
 109 void register_index(int, const char *, uint64_t, zprop_attr_t, int,
 110     const char *, const char *, const zprop_index_t *);
 111 void register_hidden(int, const char *, zprop_type_t, zprop_attr_t,
 112     int, const char *);
 113
 114 /*
 115  * Common routines for zfs and zpool property management
 116  */
 117 int zprop_iter_common(zprop_func, void *, boolean_t, boolean_t, zfs_type_t);
 118 int zprop_name_to_prop(const char *, zfs_type_t);
 119 int zprop_string_to_index(int, const char *, uint64_t *, zfs_type_t);
 120 int zprop_index_to_string(int, uint64_t, const char **, zfs_type_t);
 121 const char *zprop_values(int, zfs_type_t);
 122 size_t zprop_width(int, boolean_t *, zfs_type_t);
 123 boolean_t zprop_valid_for_type(int, zfs_type_t);
 124
 125 #ifdef  __cplusplus
 126 }
 127 #endif
 128
 129 #endif  /* _ZFS_PROP_H */