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mirror_zfs/module/zcommon/zfs_prop.c
Brian Behlendorf d34d4f97a8
snapdir: add 'disabled' value to make .zfs inaccessible 
In some environments, just making the .zfs control dir hidden from sight
might not be enough. In particular, the following scenarios might
warrant not allowing access at all:
- old snapshots with wrong permissions/ownership
- old snapshots with exploitable setuid/setgid binaries
- old snapshots with sensitive contents

Introducing a new 'disabled' value that not only hides the control dir,
but prevents access to its contents by returning ENOENT solves all of
the above.

The new property value takes advantage of 'iuv' semantics ("ignore
unknown value") to automatically fall back to the old default value when
a pool is accessed by an older version of ZFS that doesn't yet know
about 'disabled' semantics.

I think that technically the zfs_dirlook change is enough to prevent
access, but preventing lookups and dir entries in an already opened .zfs
handle might also be a good idea to prevent races when modifying the
property at runtime.

Add zfs_snapshot_no_setuid parameter to control whether automatically
mounted snapshots have the setuid mount option set or not.

this could be considered a partial fix for one of the scenarios
mentioned in desired.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Co-authored-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Closes #3963
Closes #16587
2024-10-02 09:12:02 -07:00

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
* Copyright 2016, Joyent, Inc.
* Copyright (c) 2019, Klara Inc.
* Copyright (c) 2019, Allan Jude
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/
/* Portions Copyright 2010 Robert Milkowski */
#if defined(_KERNEL)
#include <sys/simd.h>
#endif
#include <sys/zio.h>
#include <sys/spa.h>
#include <sys/u8_textprep.h>
#include <sys/zfs_acl.h>
#include <sys/zfs_ioctl.h>
#include <sys/zfs_znode.h>
#include <sys/dsl_crypt.h>
#include <sys/simd.h>
#include "zfs_prop.h"
#include "zfs_deleg.h"
#include "zfs_fletcher.h"
#if !defined(_KERNEL)
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#endif
static zprop_desc_t zfs_prop_table[ZFS_NUM_PROPS];
/* Note this is indexed by zfs_userquota_prop_t, keep the order the same */
const char *const zfs_userquota_prop_prefixes[] = {
"userused@",
"userquota@",
"groupused@",
"groupquota@",
"userobjused@",
"userobjquota@",
"groupobjused@",
"groupobjquota@",
"projectused@",
"projectquota@",
"projectobjused@",
"projectobjquota@"
};
zprop_desc_t *
zfs_prop_get_table(void)
{
return (zfs_prop_table);
}
void
zfs_prop_init(void)
{
static const zprop_index_t checksum_table[] = {
{ "on", ZIO_CHECKSUM_ON },
{ "off", ZIO_CHECKSUM_OFF },
{ "fletcher2", ZIO_CHECKSUM_FLETCHER_2 },
{ "fletcher4", ZIO_CHECKSUM_FLETCHER_4 },
{ "sha256", ZIO_CHECKSUM_SHA256 },
{ "noparity", ZIO_CHECKSUM_NOPARITY },
{ "sha512", ZIO_CHECKSUM_SHA512 },
{ "skein", ZIO_CHECKSUM_SKEIN },
{ "edonr", ZIO_CHECKSUM_EDONR },
{ "blake3", ZIO_CHECKSUM_BLAKE3 },
{ NULL }
};
static const zprop_index_t dedup_table[] = {
{ "on", ZIO_CHECKSUM_ON },
{ "off", ZIO_CHECKSUM_OFF },
{ "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY },
{ "sha256", ZIO_CHECKSUM_SHA256 },
{ "sha256,verify",
ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY },
{ "sha512", ZIO_CHECKSUM_SHA512 },
{ "sha512,verify",
ZIO_CHECKSUM_SHA512 | ZIO_CHECKSUM_VERIFY },
{ "skein", ZIO_CHECKSUM_SKEIN },
{ "skein,verify",
ZIO_CHECKSUM_SKEIN | ZIO_CHECKSUM_VERIFY },
{ "edonr,verify",
ZIO_CHECKSUM_EDONR | ZIO_CHECKSUM_VERIFY },
{ "blake3", ZIO_CHECKSUM_BLAKE3 },
{ "blake3,verify",
ZIO_CHECKSUM_BLAKE3 | ZIO_CHECKSUM_VERIFY },
{ NULL }
};
static const zprop_index_t compress_table[] = {
{ "on", ZIO_COMPRESS_ON },
{ "off", ZIO_COMPRESS_OFF },
{ "lzjb", ZIO_COMPRESS_LZJB },
{ "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */
{ "gzip-1", ZIO_COMPRESS_GZIP_1 },
{ "gzip-2", ZIO_COMPRESS_GZIP_2 },
{ "gzip-3", ZIO_COMPRESS_GZIP_3 },
{ "gzip-4", ZIO_COMPRESS_GZIP_4 },
{ "gzip-5", ZIO_COMPRESS_GZIP_5 },
{ "gzip-6", ZIO_COMPRESS_GZIP_6 },
{ "gzip-7", ZIO_COMPRESS_GZIP_7 },
{ "gzip-8", ZIO_COMPRESS_GZIP_8 },
{ "gzip-9", ZIO_COMPRESS_GZIP_9 },
{ "zle", ZIO_COMPRESS_ZLE },
{ "lz4", ZIO_COMPRESS_LZ4 },
{ "zstd", ZIO_COMPRESS_ZSTD },
{ "zstd-fast",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_DEFAULT) },
/*
* ZSTD 1-19 are synthetic. We store the compression level in a
* separate hidden property to avoid wasting a large amount of
* space in the ZIO_COMPRESS enum.
*
* The compression level is also stored within the header of the
* compressed block since we may need it for later recompression
* to avoid checksum errors (L2ARC).
*
* Note that the level here is defined as bit shifted mask on
* top of the method.
*/
{ "zstd-1", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_1) },
{ "zstd-2", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_2) },
{ "zstd-3", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_3) },
{ "zstd-4", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_4) },
{ "zstd-5", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_5) },
{ "zstd-6", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_6) },
{ "zstd-7", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_7) },
{ "zstd-8", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_8) },
{ "zstd-9", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_9) },
{ "zstd-10", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_10) },
{ "zstd-11", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_11) },
{ "zstd-12", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_12) },
{ "zstd-13", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_13) },
{ "zstd-14", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_14) },
{ "zstd-15", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_15) },
{ "zstd-16", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_16) },
{ "zstd-17", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_17) },
{ "zstd-18", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_18) },
{ "zstd-19", ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_19) },
/*
* The ZSTD-Fast levels are also synthetic.
*/
{ "zstd-fast-1",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_1) },
{ "zstd-fast-2",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_2) },
{ "zstd-fast-3",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_3) },
{ "zstd-fast-4",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_4) },
{ "zstd-fast-5",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_5) },
{ "zstd-fast-6",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_6) },
{ "zstd-fast-7",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_7) },
{ "zstd-fast-8",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_8) },
{ "zstd-fast-9",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_9) },
{ "zstd-fast-10",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_10) },
{ "zstd-fast-20",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_20) },
{ "zstd-fast-30",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_30) },
{ "zstd-fast-40",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_40) },
{ "zstd-fast-50",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_50) },
{ "zstd-fast-60",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_60) },
{ "zstd-fast-70",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_70) },
{ "zstd-fast-80",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_80) },
{ "zstd-fast-90",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_90) },
{ "zstd-fast-100",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_100) },
{ "zstd-fast-500",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_500) },
{ "zstd-fast-1000",
ZIO_COMPLEVEL_ZSTD(ZIO_ZSTD_LEVEL_FAST_1000) },
{ NULL }
};
static const zprop_index_t crypto_table[] = {
{ "on", ZIO_CRYPT_ON },
{ "off", ZIO_CRYPT_OFF },
{ "aes-128-ccm", ZIO_CRYPT_AES_128_CCM },
{ "aes-192-ccm", ZIO_CRYPT_AES_192_CCM },
{ "aes-256-ccm", ZIO_CRYPT_AES_256_CCM },
{ "aes-128-gcm", ZIO_CRYPT_AES_128_GCM },
{ "aes-192-gcm", ZIO_CRYPT_AES_192_GCM },
{ "aes-256-gcm", ZIO_CRYPT_AES_256_GCM },
{ NULL }
};
static const zprop_index_t keyformat_table[] = {
{ "none", ZFS_KEYFORMAT_NONE },
{ "raw", ZFS_KEYFORMAT_RAW },
{ "hex", ZFS_KEYFORMAT_HEX },
{ "passphrase", ZFS_KEYFORMAT_PASSPHRASE },
{ NULL }
};
static const zprop_index_t snapdir_table[] = {
{ "hidden", ZFS_SNAPDIR_HIDDEN },
{ "visible", ZFS_SNAPDIR_VISIBLE },
{ "disabled", ZFS_SNAPDIR_DISABLED },
{ NULL }
};
static const zprop_index_t snapdev_table[] = {
{ "hidden", ZFS_SNAPDEV_HIDDEN },
{ "visible", ZFS_SNAPDEV_VISIBLE },
{ NULL }
};
static const zprop_index_t acl_mode_table[] = {
{ "discard", ZFS_ACL_DISCARD },
{ "groupmask", ZFS_ACL_GROUPMASK },
{ "passthrough", ZFS_ACL_PASSTHROUGH },
{ "restricted", ZFS_ACL_RESTRICTED },
{ NULL }
};
static const zprop_index_t acltype_table[] = {
{ "off", ZFS_ACLTYPE_OFF },
{ "posix", ZFS_ACLTYPE_POSIX },
{ "nfsv4", ZFS_ACLTYPE_NFSV4 },
{ "disabled", ZFS_ACLTYPE_OFF }, /* bkwrd compatibility */
{ "noacl", ZFS_ACLTYPE_OFF }, /* bkwrd compatibility */
{ "posixacl", ZFS_ACLTYPE_POSIX }, /* bkwrd compatibility */
{ NULL }
};
static const zprop_index_t acl_inherit_table[] = {
{ "discard", ZFS_ACL_DISCARD },
{ "noallow", ZFS_ACL_NOALLOW },
{ "restricted", ZFS_ACL_RESTRICTED },
{ "passthrough", ZFS_ACL_PASSTHROUGH },
{ "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatibility */
{ "passthrough-x", ZFS_ACL_PASSTHROUGH_X },
{ NULL }
};
static const zprop_index_t case_table[] = {
{ "sensitive", ZFS_CASE_SENSITIVE },
{ "insensitive", ZFS_CASE_INSENSITIVE },
{ "mixed", ZFS_CASE_MIXED },
{ NULL }
};
static const zprop_index_t copies_table[] = {
{ "1", 1 },
{ "2", 2 },
{ "3", 3 },
{ NULL }
};
/*
* Use the unique flags we have to send to u8_strcmp() and/or
* u8_textprep() to represent the various normalization property
* values.
*/
static const zprop_index_t normalize_table[] = {
{ "none", 0 },
{ "formD", U8_TEXTPREP_NFD },
{ "formKC", U8_TEXTPREP_NFKC },
{ "formC", U8_TEXTPREP_NFC },
{ "formKD", U8_TEXTPREP_NFKD },
{ NULL }
};
static const zprop_index_t version_table[] = {
{ "1", 1 },
{ "2", 2 },
{ "3", 3 },
{ "4", 4 },
{ "5", 5 },
{ "current", ZPL_VERSION },
{ NULL }
};
static const zprop_index_t boolean_table[] = {
{ "off", 0 },
{ "on", 1 },
{ NULL }
};
static const zprop_index_t keystatus_table[] = {
{ "none", ZFS_KEYSTATUS_NONE},
{ "unavailable", ZFS_KEYSTATUS_UNAVAILABLE},
{ "available", ZFS_KEYSTATUS_AVAILABLE},
{ NULL }
};
static const zprop_index_t logbias_table[] = {
{ "latency", ZFS_LOGBIAS_LATENCY },
{ "throughput", ZFS_LOGBIAS_THROUGHPUT },
{ NULL }
};
static const zprop_index_t canmount_table[] = {
{ "off", ZFS_CANMOUNT_OFF },
{ "on", ZFS_CANMOUNT_ON },
{ "noauto", ZFS_CANMOUNT_NOAUTO },
{ NULL }
};
static const zprop_index_t cache_table[] = {
{ "none", ZFS_CACHE_NONE },
{ "metadata", ZFS_CACHE_METADATA },
{ "all", ZFS_CACHE_ALL },
{ NULL }
};
static const zprop_index_t prefetch_table[] = {
{ "none", ZFS_PREFETCH_NONE },
{ "metadata", ZFS_PREFETCH_METADATA },
{ "all", ZFS_PREFETCH_ALL },
{ NULL }
};
static const zprop_index_t sync_table[] = {
{ "standard", ZFS_SYNC_STANDARD },
{ "always", ZFS_SYNC_ALWAYS },
{ "disabled", ZFS_SYNC_DISABLED },
{ NULL }
};
static const zprop_index_t xattr_table[] = {
{ "off", ZFS_XATTR_OFF },
{ "on", ZFS_XATTR_SA },
{ "sa", ZFS_XATTR_SA },
{ "dir", ZFS_XATTR_DIR },
{ NULL }
};
static const zprop_index_t dnsize_table[] = {
{ "legacy", ZFS_DNSIZE_LEGACY },
{ "auto", ZFS_DNSIZE_AUTO },
{ "1k", ZFS_DNSIZE_1K },
{ "2k", ZFS_DNSIZE_2K },
{ "4k", ZFS_DNSIZE_4K },
{ "8k", ZFS_DNSIZE_8K },
{ "16k", ZFS_DNSIZE_16K },
{ NULL }
};
static const zprop_index_t redundant_metadata_table[] = {
{ "all", ZFS_REDUNDANT_METADATA_ALL },
{ "most", ZFS_REDUNDANT_METADATA_MOST },
{ "some", ZFS_REDUNDANT_METADATA_SOME },
{ "none", ZFS_REDUNDANT_METADATA_NONE },
{ NULL }
};
static const zprop_index_t volmode_table[] = {
{ "default", ZFS_VOLMODE_DEFAULT },
{ "full", ZFS_VOLMODE_GEOM },
{ "geom", ZFS_VOLMODE_GEOM },
{ "dev", ZFS_VOLMODE_DEV },
{ "none", ZFS_VOLMODE_NONE },
{ NULL }
};
static const zprop_index_t direct_table[] = {
{ "disabled", ZFS_DIRECT_DISABLED },
{ "standard", ZFS_DIRECT_STANDARD },
{ "always", ZFS_DIRECT_ALWAYS },
{ NULL }
};
struct zfs_mod_supported_features *sfeatures =
zfs_mod_list_supported(ZFS_SYSFS_DATASET_PROPERTIES);
/* inherit index properties */
zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata",
ZFS_REDUNDANT_METADATA_ALL,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"all | most | some | none", "REDUND_MD",
redundant_metadata_table, sfeatures);
zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"standard | always | disabled", "SYNC",
sync_table, sfeatures);
zprop_register_index(ZFS_PROP_CHECKSUM, "checksum",
ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_VOLUME,
"on | off | fletcher2 | fletcher4 | sha256 | sha512 | skein"
" | edonr | blake3",
"CHECKSUM", checksum_table, sfeatures);
zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"on | off | verify | sha256[,verify] | sha512[,verify] | "
"skein[,verify] | edonr,verify | blake3[,verify]",
"DEDUP", dedup_table, sfeatures);
zprop_register_index(ZFS_PROP_COMPRESSION, "compression",
ZIO_COMPRESS_DEFAULT, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"on | off | lzjb | gzip | gzip-[1-9] | zle | lz4 | "
"zstd | zstd-[1-19] | "
"zstd-fast | zstd-fast-[1-10,20,30,40,50,60,70,80,90,100,500,1000]",
"COMPRESS", compress_table, sfeatures);
zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"disabled | hidden | visible", "SNAPDIR", snapdir_table, sfeatures);
zprop_register_index(ZFS_PROP_SNAPDEV, "snapdev", ZFS_SNAPDEV_HIDDEN,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"hidden | visible", "SNAPDEV", snapdev_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | groupmask | passthrough | restricted", "ACLMODE",
acl_mode_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLTYPE, "acltype",
#ifdef __linux__
/* Linux doesn't natively support ZFS's NFSv4-style ACLs. */
ZFS_ACLTYPE_OFF,
#else
ZFS_ACLTYPE_NFSV4,
#endif
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"off | nfsv4 | posix", "ACLTYPE", acltype_table, sfeatures);
zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit",
ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | noallow | restricted | passthrough | passthrough-x",
"ACLINHERIT", acl_inherit_table, sfeatures);
zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"1 | 2 | 3", "COPIES", copies_table, sfeatures);
zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache",
ZFS_CACHE_ALL, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"all | none | metadata", "PRIMARYCACHE", cache_table, sfeatures);
zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache",
ZFS_CACHE_ALL, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"all | none | metadata", "SECONDARYCACHE", cache_table, sfeatures);
zprop_register_index(ZFS_PROP_PREFETCH, "prefetch",
ZFS_PREFETCH_ALL, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
"none | metadata | all", "PREFETCH", prefetch_table, sfeatures);
zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"latency | throughput", "LOGBIAS", logbias_table, sfeatures);
zprop_register_index(ZFS_PROP_XATTR, "xattr", ZFS_XATTR_SA,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"on | off | dir | sa", "XATTR", xattr_table, sfeatures);
zprop_register_index(ZFS_PROP_DNODESIZE, "dnodesize",
ZFS_DNSIZE_LEGACY, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"legacy | auto | 1k | 2k | 4k | 8k | 16k", "DNSIZE", dnsize_table,
sfeatures);
zprop_register_index(ZFS_PROP_VOLMODE, "volmode",
ZFS_VOLMODE_DEFAULT, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"default | full | geom | dev | none", "VOLMODE", volmode_table,
sfeatures);
zprop_register_index(ZFS_PROP_DIRECT, "direct",
ZFS_DIRECT_STANDARD, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"disabled | standard | always", "DIRECT", direct_table,
sfeatures);
/* inherit index (boolean) properties */
zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_RELATIME, "relatime", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "RELATIME", boolean_table,
sfeatures);
zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES",
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC",
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID",
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY",
boolean_table, sfeatures);
#ifdef __FreeBSD__
zprop_register_index(ZFS_PROP_ZONED, "jailed", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "JAILED", boolean_table,
sfeatures);
#else
zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table, sfeatures);
#endif
zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND",
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_OVERLAY, "overlay", 1, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "OVERLAY", boolean_table,
sfeatures);
/* default index properties */
zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table, sfeatures);
zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto",
"CANMOUNT", canmount_table, sfeatures);
/* readonly index properties */
zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY,
ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table,
sfeatures);
zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0,
PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY",
boolean_table, sfeatures);
zprop_register_index(ZFS_PROP_KEYSTATUS, "keystatus",
ZFS_KEYSTATUS_NONE, PROP_READONLY, ZFS_TYPE_DATASET,
"none | unavailable | available",
"KEYSTATUS", keystatus_table, sfeatures);
/* set once index properties */
zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0,
PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"none | formC | formD | formKC | formKD", "NORMALIZATION",
normalize_table, sfeatures);
zprop_register_index(ZFS_PROP_CASE, "casesensitivity",
ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_SNAPSHOT,
"sensitive | insensitive | mixed", "CASE", case_table, sfeatures);
zprop_register_index(ZFS_PROP_KEYFORMAT, "keyformat",
ZFS_KEYFORMAT_NONE, PROP_ONETIME_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"none | raw | hex | passphrase", "KEYFORMAT", keyformat_table,
sfeatures);
zprop_register_index(ZFS_PROP_ENCRYPTION, "encryption",
ZIO_CRYPT_DEFAULT, PROP_ONETIME, ZFS_TYPE_DATASET,
"on | off | aes-128-ccm | aes-192-ccm | aes-256-ccm | "
"aes-128-gcm | aes-192-gcm | aes-256-gcm", "ENCRYPTION",
crypto_table, sfeatures);
/* set once index (boolean) properties */
zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"on | off", "UTF8ONLY", boolean_table, sfeatures);
/* string properties */
zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN",
sfeatures);
zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY,
ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES", sfeatures);
zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none",
"MOUNTPOINT", sfeatures);
zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | NFS share options",
"SHARENFS", sfeatures);
zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"filesystem | volume | snapshot | bookmark", "TYPE", sfeatures);
zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off",
PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"on | off | SMB share options", "SHARESMB", sfeatures);
zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel",
ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET,
"<sensitivity label>", "MLSLABEL", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_CONTEXT, "context",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux context>",
"CONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_FSCONTEXT, "fscontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux fscontext>",
"FSCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_DEFCONTEXT, "defcontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux defcontext>",
"DEFCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_SELINUX_ROOTCONTEXT, "rootcontext",
"none", PROP_DEFAULT, ZFS_TYPE_DATASET, "<selinux rootcontext>",
"ROOTCONTEXT", sfeatures);
zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN,
"receive_resume_token",
NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<string token>", "RESUMETOK", sfeatures);
zprop_register_string(ZFS_PROP_ENCRYPTION_ROOT, "encryptionroot", NULL,
PROP_READONLY, ZFS_TYPE_DATASET, "<filesystem | volume>",
"ENCROOT", sfeatures);
zprop_register_string(ZFS_PROP_KEYLOCATION, "keylocation",
"none", PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"prompt | <file URI> | <https URL> | <http URL>", "KEYLOCATION",
sfeatures);
zprop_register_string(ZFS_PROP_REDACT_SNAPS,
"redact_snaps", NULL, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<snapshot>[,...]",
"RSNAPS", sfeatures);
/* readonly number properties */
zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY,
ZFS_TYPE_DATASET, "<size>", "USED", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL",
B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<size>",
"REFER", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"<1.00x or higher if compressed>", "RATIO", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0,
PROP_READONLY, ZFS_TYPE_DATASET,
"<1.00x or higher if compressed>", "REFRATIO", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize",
ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME,
ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK", B_FALSE,
sfeatures);
zprop_register_index(ZFS_PROP_VOLTHREADING, "volthreading",
1, PROP_DEFAULT, ZFS_TYPE_VOLUME, "on | off", "zvol threading",
boolean_table, sfeatures);
zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDSNAP", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDDS", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"USEDCHILD", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0,
PROP_READONLY,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV",
B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY,
ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY,
ZFS_TYPE_DATASET, "<size>", "WRITTEN", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
"LUSED", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced",
0, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<size>",
"LREFER", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count",
UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM,
"<count>", "FSCOUNT", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count",
UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<count>", "SSCOUNT", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_GUID, "guid", 0, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID",
B_TRUE, sfeatures);
zprop_register_number(ZFS_PROP_CREATETXG, "createtxg", 0, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG",
B_TRUE, sfeatures);
zprop_register_number(ZFS_PROP_PBKDF2_ITERS, "pbkdf2iters",
0, PROP_ONETIME_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<iters>", "PBKDF2ITERS", B_TRUE, sfeatures);
zprop_register_number(ZFS_PROP_OBJSETID, "objsetid", 0,
PROP_READONLY, ZFS_TYPE_DATASET, "<uint64>", "OBJSETID", B_TRUE,
sfeatures);
/* default number properties */
zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<size> | none", "RESERV", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT,
ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, "<size>", "VOLSIZE",
B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT,
ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA", B_FALSE,
sfeatures);
zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0,
PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<size> | none", "REFRESERV", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit",
UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM,
"<count> | none", "FSLIMIT", B_FALSE, sfeatures);
zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit",
UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"<count> | none", "SSLIMIT", B_FALSE, sfeatures);
/* inherit number properties */
zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize",
SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE", B_FALSE,
sfeatures);
zprop_register_number(ZFS_PROP_SPECIAL_SMALL_BLOCKS,
"special_small_blocks", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"zero or 512 to 1M, power of 2", "SPECIAL_SMALL_BLOCKS", B_FALSE,
sfeatures);
/* hidden properties */
zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES", B_FALSE, sfeatures);
zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME",
B_TRUE, sfeatures);
zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions",
PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS",
B_TRUE, sfeatures);
zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu",
PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME,
"STMF_SBD_LU", B_TRUE, sfeatures);
zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET,
"USERACCOUNTING", B_FALSE, sfeatures);
zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE", B_FALSE, sfeatures);
zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT",
B_FALSE, sfeatures);
zprop_register_hidden(ZFS_PROP_IVSET_GUID, "ivsetguid",
PROP_TYPE_NUMBER, PROP_READONLY,
ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "IVSETGUID", B_TRUE,
sfeatures);
zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP",
B_TRUE, sfeatures);
zprop_register_hidden(ZFS_PROP_PBKDF2_SALT, "pbkdf2salt",
PROP_TYPE_NUMBER, PROP_ONETIME_DEFAULT,
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PBKDF2SALT", B_FALSE,
sfeatures);
zprop_register_hidden(ZFS_PROP_KEY_GUID, "keyguid", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "KEYGUID", B_TRUE, sfeatures);
zprop_register_hidden(ZFS_PROP_REDACTED, "redacted", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "REDACTED", B_FALSE, sfeatures);
/*
* Properties that are obsolete and not used. These are retained so
* that we don't have to change the values of the zfs_prop_t enum, or
* have NULL pointers in the zfs_prop_table[].
*/
zprop_register_hidden(ZFS_PROP_REMAPTXG, "remaptxg", PROP_TYPE_NUMBER,
PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG", B_FALSE, sfeatures);
/* oddball properties */
/* 'creation' is a number but displayed as human-readable => flex */
zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0,
NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
"<date>", "CREATION", B_FALSE, B_TRUE, B_TRUE, NULL, sfeatures);
zprop_register_impl(ZFS_PROP_SNAPSHOTS_CHANGED, "snapshots_changed",
PROP_TYPE_NUMBER, 0, NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_VOLUME, "<date>", "SNAPSHOTS_CHANGED", B_FALSE, B_TRUE,
B_TRUE, NULL, sfeatures);
zprop_register_index(ZFS_PROP_LONGNAME, "longname", 0, PROP_INHERIT,
ZFS_TYPE_FILESYSTEM, "on | off", "LONGNAME", boolean_table,
sfeatures);
zfs_mod_list_supported_free(sfeatures);
}
boolean_t
zfs_prop_delegatable(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
zprop_desc_t *pd = &zfs_prop_table[prop];
/* The mlslabel property is never delegatable. */
if (prop == ZFS_PROP_MLSLABEL)
return (B_FALSE);
return (pd->pd_attr != PROP_READONLY);
}
/*
* Given a zfs dataset property name, returns the corresponding property ID.
*/
zfs_prop_t
zfs_name_to_prop(const char *propname)
{
return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET));
}
/*
* Returns true if this is a valid user-defined property (one with a ':').
*/
boolean_t
zfs_prop_user(const char *name)
{
int i, len;
char c;
boolean_t foundsep = B_FALSE;
len = strlen(name);
for (i = 0; i < len; i++) {
c = name[i];
if (!zprop_valid_char(c))
return (B_FALSE);
if (c == ':')
foundsep = B_TRUE;
}
if (!foundsep)
return (B_FALSE);
return (B_TRUE);
}
/*
* Returns true if this is a valid userspace-type property (one with a '@').
* Note that after the @, any character is valid (eg, another @, for SID
* user@domain).
*/
boolean_t
zfs_prop_userquota(const char *name)
{
zfs_userquota_prop_t prop;
for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) {
if (strncmp(name, zfs_userquota_prop_prefixes[prop],
strlen(zfs_userquota_prop_prefixes[prop])) == 0) {
return (B_TRUE);
}
}
return (B_FALSE);
}
/*
* Returns true if this is a valid written@ property.
* Note that after the @, any character is valid (eg, another @, for
* written@pool/fs@origin).
*/
boolean_t
zfs_prop_written(const char *name)
{
static const char *prop_prefix = "written@";
static const char *book_prefix = "written#";
return (strncmp(name, prop_prefix, strlen(prop_prefix)) == 0 ||
strncmp(name, book_prefix, strlen(book_prefix)) == 0);
}
/*
* Tables of index types, plus functions to convert between the user view
* (strings) and internal representation (uint64_t).
*/
int
zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index)
{
return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET));
}
int
zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string)
{
return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET));
}
uint64_t
zfs_prop_random_value(zfs_prop_t prop, uint64_t seed)
{
return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET));
}
/*
* Returns TRUE if the property applies to any of the given dataset types.
*/
boolean_t
zfs_prop_valid_for_type(int prop, zfs_type_t types, boolean_t headcheck)
{
return (zprop_valid_for_type(prop, types, headcheck));
}
zprop_type_t
zfs_prop_get_type(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_proptype);
}
/*
* Returns TRUE if the property is readonly.
*/
boolean_t
zfs_prop_readonly(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_attr == PROP_READONLY ||
zfs_prop_table[prop].pd_attr == PROP_ONETIME ||
zfs_prop_table[prop].pd_attr == PROP_ONETIME_DEFAULT);
}
/*
* Returns TRUE if the property is visible (not hidden).
*/
boolean_t
zfs_prop_visible(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_visible &&
zfs_prop_table[prop].pd_zfs_mod_supported);
}
/*
* Returns TRUE if the property is only allowed to be set once.
*/
boolean_t
zfs_prop_setonce(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_attr == PROP_ONETIME ||
zfs_prop_table[prop].pd_attr == PROP_ONETIME_DEFAULT);
}
const char *
zfs_prop_default_string(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_strdefault);
}
uint64_t
zfs_prop_default_numeric(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_numdefault);
}
/*
* Given a dataset property ID, returns the corresponding name.
* Assuming the zfs dataset property ID is valid.
*/
const char *
zfs_prop_to_name(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_name);
}
/*
* Returns TRUE if the property is inheritable.
*/
boolean_t
zfs_prop_inheritable(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_attr == PROP_INHERIT ||
zfs_prop_table[prop].pd_attr == PROP_ONETIME);
}
/*
* Returns TRUE if property is one of the encryption properties that requires
* a loaded encryption key to modify.
*/
boolean_t
zfs_prop_encryption_key_param(zfs_prop_t prop)
{
/*
* keylocation does not count as an encryption property. It can be
* changed at will without needing the master keys.
*/
return (prop == ZFS_PROP_PBKDF2_SALT || prop == ZFS_PROP_PBKDF2_ITERS ||
prop == ZFS_PROP_KEYFORMAT);
}
/*
* Helper function used by both kernelspace and userspace to check the
* keylocation property. If encrypted is set, the keylocation must be valid
* for an encrypted dataset.
*/
boolean_t
zfs_prop_valid_keylocation(const char *str, boolean_t encrypted)
{
if (strcmp("none", str) == 0)
return (!encrypted);
else if (strcmp("prompt", str) == 0)
return (B_TRUE);
else if (strlen(str) > 8 && strncmp("file:///", str, 8) == 0)
return (B_TRUE);
else if (strlen(str) > 8 && strncmp("https://", str, 8) == 0)
return (B_TRUE);
else if (strlen(str) > 7 && strncmp("http://", str, 7) == 0)
return (B_TRUE);
return (B_FALSE);
}
#ifndef _KERNEL
#include <libzfs.h>
/*
* Returns a string describing the set of acceptable values for the given
* zfs property, or NULL if it cannot be set.
*/
const char *
zfs_prop_values(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_values);
}
/*
* Returns TRUE if this property is a string type. Note that index types
* (compression, checksum) are treated as strings in userland, even though they
* are stored numerically on disk.
*/
int
zfs_prop_is_string(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING ||
zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX);
}
/*
* Returns the column header for the given property. Used only in
* 'zfs list -o', but centralized here with the other property information.
*/
const char *
zfs_prop_column_name(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_colname);
}
/*
* Returns whether the given property should be displayed right-justified for
* 'zfs list'.
*/
boolean_t
zfs_prop_align_right(zfs_prop_t prop)
{
ASSERT3S(prop, >=, 0);
ASSERT3S(prop, <, ZFS_NUM_PROPS);
return (zfs_prop_table[prop].pd_rightalign);
}
#endif
#if defined(_KERNEL)
#if defined(HAVE_KERNEL_FPU_INTERNAL)
uint8_t **zfs_kfpu_fpregs;
EXPORT_SYMBOL(zfs_kfpu_fpregs);
#endif /* defined(HAVE_KERNEL_FPU_INTERNAL) */
extern int __init zcommon_init(void);
extern void zcommon_fini(void);
int __init
zcommon_init(void)
{
int error = kfpu_init();
if (error)
return (error);
fletcher_4_init();
simd_stat_init();
return (0);
}
void
zcommon_fini(void)
{
simd_stat_fini();
fletcher_4_fini();
kfpu_fini();
}
#ifdef __FreeBSD__
module_init_early(zcommon_init);
module_exit(zcommon_fini);
#endif
#endif
/* zfs dataset property functions */
EXPORT_SYMBOL(zfs_userquota_prop_prefixes);
EXPORT_SYMBOL(zfs_prop_init);
EXPORT_SYMBOL(zfs_prop_get_type);
EXPORT_SYMBOL(zfs_prop_get_table);
EXPORT_SYMBOL(zfs_prop_delegatable);
EXPORT_SYMBOL(zfs_prop_visible);
/* Dataset property functions shared between libzfs and kernel. */
EXPORT_SYMBOL(zfs_prop_default_string);
EXPORT_SYMBOL(zfs_prop_default_numeric);
EXPORT_SYMBOL(zfs_prop_readonly);
EXPORT_SYMBOL(zfs_prop_inheritable);
EXPORT_SYMBOL(zfs_prop_encryption_key_param);
EXPORT_SYMBOL(zfs_prop_valid_keylocation);
EXPORT_SYMBOL(zfs_prop_setonce);
EXPORT_SYMBOL(zfs_prop_to_name);
EXPORT_SYMBOL(zfs_name_to_prop);
EXPORT_SYMBOL(zfs_prop_user);
EXPORT_SYMBOL(zfs_prop_userquota);
EXPORT_SYMBOL(zfs_prop_index_to_string);
EXPORT_SYMBOL(zfs_prop_string_to_index);
EXPORT_SYMBOL(zfs_prop_valid_for_type);
EXPORT_SYMBOL(zfs_prop_written);
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