--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/cmd/fm/schemes/zfs/scheme.c	Tue Jun 02 18:56:50 2009 +0900
@@ -0,0 +1,211 @@
+/*
+ * 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 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"@(#)scheme.c	1.3	07/09/18 SMI"
+
+#include <fm/fmd_fmri.h>
+#include <strings.h>
+#include <libzfs.h>
+
+typedef struct cbdata {
+	uint64_t	cb_guid;
+	zpool_handle_t	*cb_pool;
+} cbdata_t;
+
+libzfs_handle_t *g_zfs;
+
+static int
+find_pool(zpool_handle_t *zhp, void *data)
+{
+	cbdata_t *cbp = data;
+
+	if (zpool_get_prop_int(zhp, ZPOOL_PROP_GUID, NULL) == cbp->cb_guid) {
+		cbp->cb_pool = zhp;
+		return (1);
+	}
+
+	zpool_close(zhp);
+
+	return (0);
+}
+
+ssize_t
+fmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
+{
+	uint64_t pool_guid, vdev_guid;
+	cbdata_t cb;
+	ssize_t len;
+	const char *name;
+	char guidbuf[64];
+
+	(void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
+
+	/*
+	 * Attempt to convert the pool guid to a name.
+	 */
+	cb.cb_guid = pool_guid;
+	cb.cb_pool = NULL;
+
+	if (zpool_iter(g_zfs, find_pool, &cb) == 1) {
+		name = zpool_get_name(cb.cb_pool);
+	} else {
+		(void) snprintf(guidbuf, sizeof (guidbuf), "%llx", pool_guid);
+		name = guidbuf;
+	}
+
+	if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) == 0)
+		len = snprintf(buf, buflen, "%s://pool=%s/vdev=%llx",
+		    FM_FMRI_SCHEME_ZFS, name, vdev_guid);
+	else
+		len = snprintf(buf, buflen, "%s://pool=%s",
+		    FM_FMRI_SCHEME_ZFS, name);
+
+	if (cb.cb_pool)
+		zpool_close(cb.cb_pool);
+
+	return (len);
+}
+
+static nvlist_t *
+find_vdev_iter(nvlist_t *nv, uint64_t search)
+{
+	uint_t c, children;
+	nvlist_t **child;
+	uint64_t guid;
+	nvlist_t *ret;
+
+	(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid);
+
+	if (search == guid)
+		return (nv);
+
+	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
+	    &child, &children) != 0)
+		return (0);
+
+	for (c = 0; c < children; c++)
+		if ((ret = find_vdev_iter(child[c], search)) != 0)
+			return (ret);
+
+	return (NULL);
+}
+
+static nvlist_t *
+find_vdev(zpool_handle_t *zhp, uint64_t guid)
+{
+	nvlist_t *config;
+	nvlist_t *nvroot;
+
+	config = zpool_get_config(zhp, NULL);
+
+	(void) nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot);
+
+	return (find_vdev_iter(nvroot, guid));
+}
+
+int
+fmd_fmri_present(nvlist_t *nvl)
+{
+	uint64_t pool_guid, vdev_guid;
+	cbdata_t cb;
+	int ret;
+
+	(void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
+
+	cb.cb_guid = pool_guid;
+	cb.cb_pool = NULL;
+
+	if (zpool_iter(g_zfs, find_pool, &cb) != 1)
+		return (0);
+
+	if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) != 0) {
+		zpool_close(cb.cb_pool);
+		return (1);
+	}
+
+	ret = (find_vdev(cb.cb_pool, vdev_guid) != NULL);
+
+	zpool_close(cb.cb_pool);
+
+	return (ret);
+}
+
+int
+fmd_fmri_unusable(nvlist_t *nvl)
+{
+	uint64_t pool_guid, vdev_guid;
+	cbdata_t cb;
+	nvlist_t *vd;
+	int ret;
+
+	(void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
+
+	cb.cb_guid = pool_guid;
+	cb.cb_pool = NULL;
+
+	if (zpool_iter(g_zfs, find_pool, &cb) != 1)
+		return (1);
+
+	if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) != 0) {
+		ret = (zpool_get_state(cb.cb_pool) == POOL_STATE_UNAVAIL);
+		zpool_close(cb.cb_pool);
+		return (ret);
+	}
+
+	vd = find_vdev(cb.cb_pool, vdev_guid);
+	if (vd == NULL) {
+		ret = 1;
+	} else {
+		vdev_stat_t *vs;
+		uint_t c;
+
+		(void) nvlist_lookup_uint64_array(vd, ZPOOL_CONFIG_STATS,
+		    (uint64_t **)&vs, &c);
+
+		ret = (vs->vs_state < VDEV_STATE_DEGRADED);
+	}
+
+	zpool_close(cb.cb_pool);
+
+	return (ret);
+}
+
+int
+fmd_fmri_init(void)
+{
+	g_zfs = libzfs_init();
+
+	if (g_zfs == NULL)
+		return (-1);
+	else
+		return (0);
+}
+
+void
+fmd_fmri_fini(void)
+{
+	if (g_zfs)
+		libzfs_fini(g_zfs);
+}