[mirror_zfs.git] / module / zcommon / zfeature_common.c

/*
 * 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 http://www.opensolaris.org/os/licensing.
 * 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) 2011, 2015 by Delphix. All rights reserved.
 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
 * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved.
 */

#ifdef _KERNEL
#include <sys/systm.h>
#else
#include <errno.h>
#include <string.h>
#endif
#include <sys/debug.h>
#include <sys/fs/zfs.h>
#include <sys/inttypes.h>
#include <sys/types.h>
#include "zfeature_common.h"

/*
 * Set to disable all feature checks while opening pools, allowing pools with
 * unsupported features to be opened. Set for testing only.
 */
boolean_t zfeature_checks_disable = B_FALSE;

zfeature_info_t spa_feature_table[SPA_FEATURES];

/*
 * Valid characters for feature guids. This list is mainly for aesthetic
 * purposes and could be expanded in the future. There are different allowed
 * characters in the guids reverse dns portion (before the colon) and its
 * short name (after the colon).
 */
static int
valid_char(char c, boolean_t after_colon)
{
	return ((c >= 'a' && c <= 'z') ||
	    (c >= '0' && c <= '9') ||
	    (after_colon && c == '_') ||
	    (!after_colon && (c == '.' || c == '-')));
}

/*
 * Every feature guid must contain exactly one colon which separates a reverse
 * dns organization name from the feature's "short" name (e.g.
 * "com.company:feature_name").
 */
boolean_t
zfeature_is_valid_guid(const char *name)
{
	int i;
	boolean_t has_colon = B_FALSE;

	i = 0;
	while (name[i] != '\0') {
		char c = name[i++];
		if (c == ':') {
			if (has_colon)
				return (B_FALSE);
			has_colon = B_TRUE;
			continue;
		}
		if (!valid_char(c, has_colon))
			return (B_FALSE);
	}

	return (has_colon);
}

boolean_t
zfeature_is_supported(const char *guid)
{
	spa_feature_t i;

	if (zfeature_checks_disable)
		return (B_TRUE);

	for (i = 0; i < SPA_FEATURES; i++) {
		zfeature_info_t *feature = &spa_feature_table[i];
		if (strcmp(guid, feature->fi_guid) == 0)
			return (B_TRUE);
	}

	return (B_FALSE);
}

int
zfeature_lookup_name(const char *name, spa_feature_t *res)
{
	spa_feature_t i;

	for (i = 0; i < SPA_FEATURES; i++) {
		zfeature_info_t *feature = &spa_feature_table[i];
		if (strcmp(name, feature->fi_uname) == 0) {
			if (res != NULL)
				*res = i;
			return (0);
		}
	}

	return (ENOENT);
}

boolean_t
zfeature_depends_on(spa_feature_t fid, spa_feature_t check)
{
	zfeature_info_t *feature = &spa_feature_table[fid];
	int i;

	for (i = 0; feature->fi_depends[i] != SPA_FEATURE_NONE; i++) {
		if (feature->fi_depends[i] == check)
			return (B_TRUE);
	}
	return (B_FALSE);
}

static boolean_t
deps_contains_feature(const spa_feature_t *deps, const spa_feature_t feature)
{
	int i;

	for (i = 0; deps[i] != SPA_FEATURE_NONE; i++)
		if (deps[i] == feature)
			return (B_TRUE);

	return (B_FALSE);
}

static void
zfeature_register(spa_feature_t fid, const char *guid, const char *name,
    const char *desc, zfeature_flags_t flags, const spa_feature_t *deps)
{
	zfeature_info_t *feature = &spa_feature_table[fid];
	static spa_feature_t nodeps[] = { SPA_FEATURE_NONE };

	ASSERT(name != NULL);
	ASSERT(desc != NULL);
	ASSERT((flags & ZFEATURE_FLAG_READONLY_COMPAT) == 0 ||
	    (flags & ZFEATURE_FLAG_MOS) == 0);
	ASSERT3U(fid, <, SPA_FEATURES);
	ASSERT(zfeature_is_valid_guid(guid));

	if (deps == NULL)
		deps = nodeps;

	VERIFY(((flags & ZFEATURE_FLAG_PER_DATASET) == 0) ||
	    (deps_contains_feature(deps, SPA_FEATURE_EXTENSIBLE_DATASET)));

	feature->fi_feature = fid;
	feature->fi_guid = guid;
	feature->fi_uname = name;
	feature->fi_desc = desc;
	feature->fi_flags = flags;
	feature->fi_depends = deps;
}

void
zpool_feature_init(void)
{
	zfeature_register(SPA_FEATURE_ASYNC_DESTROY,
	    "com.delphix:async_destroy", "async_destroy",
	    "Destroy filesystems asynchronously.",
	    ZFEATURE_FLAG_READONLY_COMPAT, NULL);

	zfeature_register(SPA_FEATURE_EMPTY_BPOBJ,
	    "com.delphix:empty_bpobj", "empty_bpobj",
	    "Snapshots use less space.",
	    ZFEATURE_FLAG_READONLY_COMPAT, NULL);

	zfeature_register(SPA_FEATURE_LZ4_COMPRESS,
	    "org.illumos:lz4_compress", "lz4_compress",
	    "LZ4 compression algorithm support.",
	    ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, NULL);

	zfeature_register(SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
	    "com.joyent:multi_vdev_crash_dump", "multi_vdev_crash_dump",
	    "Crash dumps to multiple vdev pools.",
	    0, NULL);

	zfeature_register(SPA_FEATURE_SPACEMAP_HISTOGRAM,
	    "com.delphix:spacemap_histogram", "spacemap_histogram",
	    "Spacemaps maintain space histograms.",
	    ZFEATURE_FLAG_READONLY_COMPAT, NULL);

	zfeature_register(SPA_FEATURE_ENABLED_TXG,
	    "com.delphix:enabled_txg", "enabled_txg",
	    "Record txg at which a feature is enabled",
	    ZFEATURE_FLAG_READONLY_COMPAT, NULL);

	{
	static const spa_feature_t hole_birth_deps[] = {
		SPA_FEATURE_ENABLED_TXG,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_HOLE_BIRTH,
	    "com.delphix:hole_birth", "hole_birth",
	    "Retain hole birth txg for more precise zfs send",
	    ZFEATURE_FLAG_MOS | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE,
	    hole_birth_deps);
	}

	zfeature_register(SPA_FEATURE_EXTENSIBLE_DATASET,
	    "com.delphix:extensible_dataset", "extensible_dataset",
	    "Enhanced dataset functionality, used by other features.",
	    0, NULL);

	{
	static const spa_feature_t bookmarks_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};

	zfeature_register(SPA_FEATURE_BOOKMARKS,
	    "com.delphix:bookmarks", "bookmarks",
	    "\"zfs bookmark\" command",
	    ZFEATURE_FLAG_READONLY_COMPAT, bookmarks_deps);
	}

	{
	static const spa_feature_t filesystem_limits_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_FS_SS_LIMIT,
	    "com.joyent:filesystem_limits", "filesystem_limits",
	    "Filesystem and snapshot limits.",
	    ZFEATURE_FLAG_READONLY_COMPAT, filesystem_limits_deps);
	}

	zfeature_register(SPA_FEATURE_EMBEDDED_DATA,
	    "com.delphix:embedded_data", "embedded_data",
	    "Blocks which compress very well use even less space.",
	    ZFEATURE_FLAG_MOS | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE,
	    NULL);

	{
	static const spa_feature_t large_blocks_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_LARGE_BLOCKS,
	    "org.open-zfs:large_blocks", "large_blocks",
	    "Support for blocks larger than 128KB.",
	    ZFEATURE_FLAG_PER_DATASET, large_blocks_deps);
	}

	{
	static const spa_feature_t large_dnode_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_LARGE_DNODE,
	    "org.zfsonlinux:large_dnode", "large_dnode",
	    "Variable on-disk size of dnodes.",
	    ZFEATURE_FLAG_PER_DATASET, large_dnode_deps);
	}

	{
	static const spa_feature_t sha512_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_SHA512,
	    "org.illumos:sha512", "sha512",
	    "SHA-512/256 hash algorithm.",
	    ZFEATURE_FLAG_PER_DATASET, sha512_deps);
	}
	{
	static const spa_feature_t skein_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_SKEIN,
	    "org.illumos:skein", "skein",
	    "Skein hash algorithm.",
	    ZFEATURE_FLAG_PER_DATASET, skein_deps);
	}

	{
	static const spa_feature_t edonr_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_EDONR,
	    "org.illumos:edonr", "edonr",
	    "Edon-R hash algorithm.",
	    ZFEATURE_FLAG_PER_DATASET, edonr_deps);
	}
	{
	static const spa_feature_t userobj_accounting_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_USEROBJ_ACCOUNTING,
	    "org.zfsonlinux:userobj_accounting", "userobj_accounting",
	    "User/Group object accounting.",
	    ZFEATURE_FLAG_READONLY_COMPAT | ZFEATURE_FLAG_PER_DATASET,
	    userobj_accounting_deps);
	}

	{
	static const spa_feature_t encryption_deps[] = {
		SPA_FEATURE_EXTENSIBLE_DATASET,
		SPA_FEATURE_NONE
	};
	zfeature_register(SPA_FEATURE_ENCRYPTION,
	    "com.datto:encryption", "encryption",
	    "Support for dataset level encryption",
	    ZFEATURE_FLAG_PER_DATASET, encryption_deps);
	}
}

#if defined(_KERNEL) && defined(HAVE_SPL)
EXPORT_SYMBOL(zfeature_lookup_name);
EXPORT_SYMBOL(zfeature_is_supported);
EXPORT_SYMBOL(zfeature_is_valid_guid);
EXPORT_SYMBOL(zfeature_depends_on);
EXPORT_SYMBOL(zpool_feature_init);
EXPORT_SYMBOL(spa_feature_table);
#endif
Commit	Line	Data
9ae529ec CS	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	/*
241b5415	23	* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
9759c60f	24	* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
42db43e9	25	* Copyright (c) 2013, Joyent, Inc. All rights reserved.
62bdd5eb	26	* Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved.
9ae529ec CS	27	*/
	28
	29	#ifdef _KERNEL
	30	#include <sys/systm.h>
	31	#else
	32	#include <errno.h>
	33	#include <string.h>
	34	#endif
	35	#include <sys/debug.h>
	36	#include <sys/fs/zfs.h>
	37	#include <sys/inttypes.h>
	38	#include <sys/types.h>
	39	#include "zfeature_common.h"
	40
	41	/*
	42	* Set to disable all feature checks while opening pools, allowing pools with
	43	* unsupported features to be opened. Set for testing only.
	44	*/
	45	boolean_t zfeature_checks_disable = B_FALSE;
	46
	47	zfeature_info_t spa_feature_table[SPA_FEATURES];
	48
	49	/*
	50	* Valid characters for feature guids. This list is mainly for aesthetic
	51	* purposes and could be expanded in the future. There are different allowed
	52	* characters in the guids reverse dns portion (before the colon) and its
	53	* short name (after the colon).
	54	*/
	55	static int
	56	valid_char(char c, boolean_t after_colon)
	57	{
	58	return ((c >= 'a' && c <= 'z') \|\|
	59	(c >= '0' && c <= '9') \|\|
f1512ee6 MA	60	(after_colon && c == '_') \|\|
f1512ee6 MA	61	(!after_colon && (c == '.' \|\| c == '-')));
9ae529ec CS	62	}
	63
	64	/*
	65	* Every feature guid must contain exactly one colon which separates a reverse
	66	* dns organization name from the feature's "short" name (e.g.
	67	* "com.company:feature_name").
	68	*/
	69	boolean_t
	70	zfeature_is_valid_guid(const char *name)
	71	{
	72	int i;
	73	boolean_t has_colon = B_FALSE;
	74
	75	i = 0;
	76	while (name[i] != '\0') {
	77	char c = name[i++];
	78	if (c == ':') {
	79	if (has_colon)
	80	return (B_FALSE);
	81	has_colon = B_TRUE;
	82	continue;
	83	}
	84	if (!valid_char(c, has_colon))
	85	return (B_FALSE);
	86	}
	87
	88	return (has_colon);
	89	}
	90
	91	boolean_t
	92	zfeature_is_supported(const char *guid)
	93	{
fa86b5db MA	94	spa_feature_t i;
fa86b5db MA	95
9ae529ec CS	96	if (zfeature_checks_disable)
	97	return (B_TRUE);
	98
9ae529ec CS	99	for (i = 0; i < SPA_FEATURES; i++) {
9ae529ec CS	100	zfeature_info_t *feature = &spa_feature_table[i];
fa86b5db MA	101	if (strcmp(guid, feature->fi_guid) == 0)
fa86b5db MA	102	return (B_TRUE);
9ae529ec CS	103	}
9ae529ec CS	104
fa86b5db	105	return (B_FALSE);
9ae529ec CS	106	}
	107
	108	int
fa86b5db	109	zfeature_lookup_name(const char name, spa_feature_t res)
9ae529ec	110	{
fa86b5db	111	spa_feature_t i;
9ae529ec CS	112
	113	for (i = 0; i < SPA_FEATURES; i++) {
	114	zfeature_info_t *feature = &spa_feature_table[i];
	115	if (strcmp(name, feature->fi_uname) == 0) {
	116	if (res != NULL)
fa86b5db	117	*res = i;
9ae529ec CS	118	return (0);
	119	}
	120	}
	121
	122	return (ENOENT);
	123	}
	124
b0bc7a84	125	boolean_t
e9aa730c GM	126	zfeature_depends_on(spa_feature_t fid, spa_feature_t check)
e9aa730c GM	127	{
b0bc7a84 MG	128	zfeature_info_t *feature = &spa_feature_table[fid];
	129	int i;
	130
	131	for (i = 0; feature->fi_depends[i] != SPA_FEATURE_NONE; i++) {
	132	if (feature->fi_depends[i] == check)
	133	return (B_TRUE);
	134	}
	135	return (B_FALSE);
	136	}
	137
0bc63d83 GM	138	static boolean_t
	139	deps_contains_feature(const spa_feature_t *deps, const spa_feature_t feature)
	140	{
	141	int i;
	142
	143	for (i = 0; deps[i] != SPA_FEATURE_NONE; i++)
	144	if (deps[i] == feature)
	145	return (B_TRUE);
	146
	147	return (B_FALSE);
	148	}
	149
9ae529ec	150	static void
fa86b5db	151	zfeature_register(spa_feature_t fid, const char guid, const char name,
241b5415	152	const char desc, zfeature_flags_t flags, const spa_feature_t deps)
9ae529ec CS	153	{
9ae529ec CS	154	zfeature_info_t *feature = &spa_feature_table[fid];
fa86b5db	155	static spa_feature_t nodeps[] = { SPA_FEATURE_NONE };
9ae529ec CS	156
	157	ASSERT(name != NULL);
	158	ASSERT(desc != NULL);
241b5415 MA	159	ASSERT((flags & ZFEATURE_FLAG_READONLY_COMPAT) == 0 \|\|
241b5415 MA	160	(flags & ZFEATURE_FLAG_MOS) == 0);
9ae529ec CS	161	ASSERT3U(fid, <, SPA_FEATURES);
	162	ASSERT(zfeature_is_valid_guid(guid));
	163
	164	if (deps == NULL)
	165	deps = nodeps;
	166
0bc63d83 GM	167	VERIFY(((flags & ZFEATURE_FLAG_PER_DATASET) == 0) \|\|
	168	(deps_contains_feature(deps, SPA_FEATURE_EXTENSIBLE_DATASET)));
	169
fa86b5db	170	feature->fi_feature = fid;
9ae529ec CS	171	feature->fi_guid = guid;
	172	feature->fi_uname = name;
	173	feature->fi_desc = desc;
241b5415	174	feature->fi_flags = flags;
9ae529ec CS	175	feature->fi_depends = deps;
	176	}
	177
	178	void
	179	zpool_feature_init(void)
	180	{
	181	zfeature_register(SPA_FEATURE_ASYNC_DESTROY,
	182	"com.delphix:async_destroy", "async_destroy",
241b5415 MA	183	"Destroy filesystems asynchronously.",
241b5415 MA	184	ZFEATURE_FLAG_READONLY_COMPAT, NULL);
b0bc7a84	185
753c3839 MA	186	zfeature_register(SPA_FEATURE_EMPTY_BPOBJ,
753c3839 MA	187	"com.delphix:empty_bpobj", "empty_bpobj",
241b5415 MA	188	"Snapshots use less space.",
241b5415 MA	189	ZFEATURE_FLAG_READONLY_COMPAT, NULL);
b0bc7a84	190
9759c60f ED	191	zfeature_register(SPA_FEATURE_LZ4_COMPRESS,
9759c60f ED	192	"org.illumos:lz4_compress", "lz4_compress",
241b5415 MA	193	"LZ4 compression algorithm support.",
241b5415 MA	194	ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, NULL);
b0bc7a84	195
42db43e9 GDN	196	zfeature_register(SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
	197	"com.joyent:multi_vdev_crash_dump", "multi_vdev_crash_dump",
	198	"Crash dumps to multiple vdev pools.",
	199	0, NULL);
	200
93cf2076 GW	201	zfeature_register(SPA_FEATURE_SPACEMAP_HISTOGRAM,
93cf2076 GW	202	"com.delphix:spacemap_histogram", "spacemap_histogram",
241b5415 MA	203	"Spacemaps maintain space histograms.",
241b5415 MA	204	ZFEATURE_FLAG_READONLY_COMPAT, NULL);
b0bc7a84 MG	205
	206	zfeature_register(SPA_FEATURE_ENABLED_TXG,
	207	"com.delphix:enabled_txg", "enabled_txg",
241b5415 MA	208	"Record txg at which a feature is enabled",
241b5415 MA	209	ZFEATURE_FLAG_READONLY_COMPAT, NULL);
b0bc7a84 MG	210
b0bc7a84 MG	211	{
da536844 MA	212	static const spa_feature_t hole_birth_deps[] = {
	213	SPA_FEATURE_ENABLED_TXG,
	214	SPA_FEATURE_NONE
	215	};
b0bc7a84 MG	216	zfeature_register(SPA_FEATURE_HOLE_BIRTH,
	217	"com.delphix:hole_birth", "hole_birth",
	218	"Retain hole birth txg for more precise zfs send",
241b5415 MA	219	ZFEATURE_FLAG_MOS \| ZFEATURE_FLAG_ACTIVATE_ON_ENABLE,
241b5415 MA	220	hole_birth_deps);
b0bc7a84 MG	221	}
b0bc7a84 MG	222
fa86b5db MA	223	zfeature_register(SPA_FEATURE_EXTENSIBLE_DATASET,
	224	"com.delphix:extensible_dataset", "extensible_dataset",
	225	"Enhanced dataset functionality, used by other features.",
241b5415	226	0, NULL);
da536844 MA	227
	228	{
	229	static const spa_feature_t bookmarks_deps[] = {
	230	SPA_FEATURE_EXTENSIBLE_DATASET,
	231	SPA_FEATURE_NONE
	232	};
	233
	234	zfeature_register(SPA_FEATURE_BOOKMARKS,
	235	"com.delphix:bookmarks", "bookmarks",
	236	"\"zfs bookmark\" command",
241b5415	237	ZFEATURE_FLAG_READONLY_COMPAT, bookmarks_deps);
da536844	238	}
9b67f605	239
788eb90c JJ	240	{
788eb90c JJ	241	static const spa_feature_t filesystem_limits_deps[] = {
832805d9 BB	242	SPA_FEATURE_EXTENSIBLE_DATASET,
832805d9 BB	243	SPA_FEATURE_NONE
788eb90c JJ	244	};
	245	zfeature_register(SPA_FEATURE_FS_SS_LIMIT,
	246	"com.joyent:filesystem_limits", "filesystem_limits",
241b5415 MA	247	"Filesystem and snapshot limits.",
241b5415 MA	248	ZFEATURE_FLAG_READONLY_COMPAT, filesystem_limits_deps);
788eb90c JJ	249	}
788eb90c JJ	250
9b67f605 MA	251	zfeature_register(SPA_FEATURE_EMBEDDED_DATA,
	252	"com.delphix:embedded_data", "embedded_data",
	253	"Blocks which compress very well use even less space.",
241b5415 MA	254	ZFEATURE_FLAG_MOS \| ZFEATURE_FLAG_ACTIVATE_ON_ENABLE,
241b5415 MA	255	NULL);
f1512ee6 MA	256
	257	{
	258	static const spa_feature_t large_blocks_deps[] = {
	259	SPA_FEATURE_EXTENSIBLE_DATASET,
	260	SPA_FEATURE_NONE
	261	};
	262	zfeature_register(SPA_FEATURE_LARGE_BLOCKS,
	263	"org.open-zfs:large_blocks", "large_blocks",
241b5415 MA	264	"Support for blocks larger than 128KB.",
241b5415 MA	265	ZFEATURE_FLAG_PER_DATASET, large_blocks_deps);
f1512ee6	266	}
50c957f7 NB	267
	268	{
	269	static const spa_feature_t large_dnode_deps[] = {
	270	SPA_FEATURE_EXTENSIBLE_DATASET,
	271	SPA_FEATURE_NONE
	272	};
	273	zfeature_register(SPA_FEATURE_LARGE_DNODE,
	274	"org.zfsonlinux:large_dnode", "large_dnode",
	275	"Variable on-disk size of dnodes.",
	276	ZFEATURE_FLAG_PER_DATASET, large_dnode_deps);
	277	}
125a406e	278
	279	{
	280	static const spa_feature_t sha512_deps[] = {
	281	SPA_FEATURE_EXTENSIBLE_DATASET,
	282	SPA_FEATURE_NONE
	283	};
3c67d83a TH	284	zfeature_register(SPA_FEATURE_SHA512,
	285	"org.illumos:sha512", "sha512",
	286	"SHA-512/256 hash algorithm.",
125a406e	287	ZFEATURE_FLAG_PER_DATASET, sha512_deps);
	288	}
	289	{
	290	static const spa_feature_t skein_deps[] = {
	291	SPA_FEATURE_EXTENSIBLE_DATASET,
	292	SPA_FEATURE_NONE
	293	};
3c67d83a TH	294	zfeature_register(SPA_FEATURE_SKEIN,
	295	"org.illumos:skein", "skein",
	296	"Skein hash algorithm.",
125a406e	297	ZFEATURE_FLAG_PER_DATASET, skein_deps);
	298	}
	299
	300	{
	301	static const spa_feature_t edonr_deps[] = {
	302	SPA_FEATURE_EXTENSIBLE_DATASET,
	303	SPA_FEATURE_NONE
	304	};
3c67d83a TH	305	zfeature_register(SPA_FEATURE_EDONR,
	306	"org.illumos:edonr", "edonr",
	307	"Edon-R hash algorithm.",
125a406e	308	ZFEATURE_FLAG_PER_DATASET, edonr_deps);
125a406e	309	}
1de321e6 JX	310	{
	311	static const spa_feature_t userobj_accounting_deps[] = {
	312	SPA_FEATURE_EXTENSIBLE_DATASET,
	313	SPA_FEATURE_NONE
	314	};
	315	zfeature_register(SPA_FEATURE_USEROBJ_ACCOUNTING,
	316	"org.zfsonlinux:userobj_accounting", "userobj_accounting",
	317	"User/Group object accounting.",
	318	ZFEATURE_FLAG_READONLY_COMPAT \| ZFEATURE_FLAG_PER_DATASET,
	319	userobj_accounting_deps);
	320	}
b5256303 TC	321
	322	{
	323	static const spa_feature_t encryption_deps[] = {
	324	SPA_FEATURE_EXTENSIBLE_DATASET,
	325	SPA_FEATURE_NONE
	326	};
	327	zfeature_register(SPA_FEATURE_ENCRYPTION,
	328	"com.datto:encryption", "encryption",
	329	"Support for dataset level encryption",
	330	ZFEATURE_FLAG_PER_DATASET, encryption_deps);
	331	}
9ae529ec	332	}
46364cb2 BB	333
	334	#if defined(_KERNEL) && defined(HAVE_SPL)
	335	EXPORT_SYMBOL(zfeature_lookup_name);
	336	EXPORT_SYMBOL(zfeature_is_supported);
	337	EXPORT_SYMBOL(zfeature_is_valid_guid);
	338	EXPORT_SYMBOL(zfeature_depends_on);
	339	EXPORT_SYMBOL(zpool_feature_init);
	340	EXPORT_SYMBOL(spa_feature_table);
	341	#endif