Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.

This bring huge amount of changes, I'll enumerate only user-visible changes:

- Delegated Administration

	Allows regular users to perform ZFS operations, like file system
	creation, snapshot creation, etc.

- L2ARC

	Level 2 cache for ZFS - allows to use additional disks for cache.
	Huge performance improvements mostly for random read of mostly
	static content.

- slog

	Allow to use additional disks for ZFS Intent Log to speed up
	operations like fsync(2).

- vfs.zfs.super_owner

	Allows regular users to perform privileged operations on files stored
	on ZFS file systems owned by him. Very careful with this one.

- chflags(2)

	Not all the flags are supported. This still needs work.

- ZFSBoot

	Support to boot off of ZFS pool. Not finished, AFAIK.

	Submitted by:	dfr

- Snapshot properties

- New failure modes

	Before if write requested failed, system paniced. Now one
	can select from one of three failure modes:
	- panic - panic on write error
	- wait - wait for disk to reappear
	- continue - serve read requests if possible, block write requests

- Refquota, refreservation properties

	Just quota and reservation properties, but don't count space consumed
	by children file systems, clones and snapshots.

- Sparse volumes

	ZVOLs that don't reserve space in the pool.

- External attributes

	Compatible with extattr(2).

- NFSv4-ACLs

	Not sure about the status, might not be complete yet.

	Submitted by:	trasz

- Creation-time properties

- Regression tests for zpool(8) command.

Obtained from:	OpenSolaris

1 files changed, 186 insertions, 0 deletions

diff --git a/sys/cddl/contrib/opensolaris/common/zfs/zpool_prop.c b/sys/cddl/contrib/opensolaris/common/zfs/zpool_prop.c
new file mode 100644
index 0000000..f5efe18
--- /dev/null
+++ b/sys/cddl/contrib/opensolaris/common/zfs/zpool_prop.c
@@ -0,0 +1,186 @@
+/*
+ * 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 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include <sys/zio.h>
+#include <sys/spa.h>
+#include <sys/zfs_acl.h>
+#include <sys/zfs_ioctl.h>
+#include <sys/fs/zfs.h>
+
+#include "zfs_prop.h"
+
+#if defined(_KERNEL)
+#include <sys/systm.h>
+#else
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#endif
+
+static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
+
+zprop_desc_t *
+zpool_prop_get_table(void)
+{
+	return (zpool_prop_table);
+}
+
+void
+zpool_prop_init(void)
+{
+	static zprop_index_t boolean_table[] = {
+		{ "off",	0},
+		{ "on",		1},
+		{ NULL }
+	};
+
+	static zprop_index_t failuremode_table[] = {
+		{ "wait",	ZIO_FAILURE_MODE_WAIT },
+		{ "continue",	ZIO_FAILURE_MODE_CONTINUE },
+		{ "panic",	ZIO_FAILURE_MODE_PANIC },
+		{ NULL }
+	};
+
+	/* string properties */
+	register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "<path>", "ALTROOT");
+	register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
+	register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");
+
+	/* readonly number properties */
+	register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<size>", "SIZE");
+	register_number(ZPOOL_PROP_USED, "used", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<size>", "USED");
+	register_number(ZPOOL_PROP_AVAILABLE, "available", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<size>", "AVAIL");
+	register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<size>", "CAP");
+	register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<guid>", "GUID");
+	register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
+	    ZFS_TYPE_POOL, "<state>", "HEALTH");
+
+	/* default number properties */
+	register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
+	    PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
+
+	/* default index (boolean) properties */
+	register_index(ZPOOL_PROP_DELEGATION, "delegation", 1, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "on | off", "DELEGATION", boolean_table);
+	register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
+	register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0, PROP_DEFAULT,
+	    ZFS_TYPE_POOL, "on | off", "LISTSNAPS", boolean_table);
+
+	/* default index properties */
+	register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
+	    ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
+	    "wait | continue | panic", "FAILMODE", failuremode_table);
+
+	/* hidden properties */
+	register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
+	    PROP_READONLY, ZFS_TYPE_POOL, "NAME");
+}
+
+/*
+ * Given a property name and its type, returns the corresponding property ID.
+ */
+zpool_prop_t
+zpool_name_to_prop(const char *propname)
+{
+	return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
+}
+
+/*
+ * Given a pool property ID, returns the corresponding name.
+ * Assuming the pool propety ID is valid.
+ */
+const char *
+zpool_prop_to_name(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_name);
+}
+
+zprop_type_t
+zpool_prop_get_type(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_proptype);
+}
+
+boolean_t
+zpool_prop_readonly(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
+}
+
+const char *
+zpool_prop_default_string(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_strdefault);
+}
+
+uint64_t
+zpool_prop_default_numeric(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_numdefault);
+}
+
+int
+zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
+    uint64_t *index)
+{
+	return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
+}
+
+int
+zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
+    const char **string)
+{
+	return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
+}
+
+#ifndef _KERNEL
+
+const char *
+zpool_prop_values(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_values);
+}
+
+const char *
+zpool_prop_column_name(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_colname);
+}
+
+boolean_t
+zpool_prop_align_right(zpool_prop_t prop)
+{
+	return (zpool_prop_table[prop].pd_rightalign);
+}
+#endif