scheme.c revision 990b4856d0eaada6f8140335733a1b1771ed2746
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock/*
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * CDDL HEADER START
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * or http://www.opensolaris.org/os/licensing.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * See the License for the specific language governing permissions
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * and limitations under the License.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * When distributing Covered Code, include this CDDL HEADER in each
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * If applicable, add the following below this CDDL HEADER, with the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * fields enclosed by brackets "[]" replaced with your own identifying
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * information: Portions Copyright [yyyy] [name of copyright owner]
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * CDDL HEADER END
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock */
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock/*
990b4856d0eaada6f8140335733a1b1771ed2746lling * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Use is subject to license terms.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock */
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock#pragma ident "%Z%%M% %I% %E% SMI"
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock#include <fm/fmd_fmri.h>
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock#include <strings.h>
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock#include <libzfs.h>
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrocktypedef struct cbdata {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint64_t cb_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_handle_t *cb_pool;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock} cbdata_t;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrocklibzfs_handle_t *g_zfs;
99653d4ee642c6528e88224f12409a5f23060994eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockstatic int
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfind_pool(zpool_handle_t *zhp, void *data)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cbdata_t *cbp = data;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
990b4856d0eaada6f8140335733a1b1771ed2746lling if (zpool_get_prop_int(zhp, ZPOOL_PROP_GUID, NULL) == cbp->cb_guid) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cbp->cb_pool = zhp;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (1);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(zhp);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (0);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockssize_t
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint64_t pool_guid, vdev_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cbdata_t cb;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ssize_t len;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock const char *name;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock char guidbuf[64];
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock /*
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Attempt to convert the pool guid to a name.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock */
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_guid = pool_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_pool = NULL;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zpool_iter(g_zfs, find_pool, &cb) == 1) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock name = zpool_get_name(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock } else {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) snprintf(guidbuf, sizeof (guidbuf), "%llx", pool_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock name = guidbuf;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) == 0)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock len = snprintf(buf, buflen, "%s://pool=%s/vdev=%llx",
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock FM_FMRI_SCHEME_ZFS, name, vdev_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock else
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock len = snprintf(buf, buflen, "%s://pool=%s",
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock FM_FMRI_SCHEME_ZFS, name);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (cb.cb_pool)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (len);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockstatic nvlist_t *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfind_vdev_iter(nvlist_t *nv, uint64_t search)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint_t c, children;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock nvlist_t **child;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint64_t guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock nvlist_t *ret;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (search == guid)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (nv);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock &child, &children) != 0)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (0);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock for (c = 0; c < children; c++)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if ((ret = find_vdev_iter(child[c], search)) != 0)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (ret);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (NULL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockstatic nvlist_t *
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfind_vdev(zpool_handle_t *zhp, uint64_t guid)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock nvlist_t *config;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock nvlist_t *nvroot;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock config = zpool_get_config(zhp, NULL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (find_vdev_iter(nvroot, guid));
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockint
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfmd_fmri_present(nvlist_t *nvl)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint64_t pool_guid, vdev_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cbdata_t cb;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock int ret;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_guid = pool_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_pool = NULL;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zpool_iter(g_zfs, find_pool, &cb) != 1)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (0);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) != 0) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (1);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ret = (find_vdev(cb.cb_pool, vdev_guid) != NULL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (ret);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockint
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockfmd_fmri_unusable(nvlist_t *nvl)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint64_t pool_guid, vdev_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cbdata_t cb;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock nvlist_t *vd;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock int ret;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_POOL, &pool_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_guid = pool_guid;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock cb.cb_pool = NULL;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zpool_iter(g_zfs, find_pool, &cb) != 1)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (1);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (nvlist_lookup_uint64(nvl, FM_FMRI_ZFS_VDEV, &vdev_guid) != 0) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ret = (zpool_get_state(cb.cb_pool) == POOL_STATE_UNAVAIL);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (ret);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vd = find_vdev(cb.cb_pool, vdev_guid);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock if (vd == NULL) {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ret = 1;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock } else {
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock vdev_stat_t *vs;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock uint_t c;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (void) nvlist_lookup_uint64_array(vd, ZPOOL_CONFIG_STATS,
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock (uint64_t **)&vs, &c);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock ret = (vs->vs_state < VDEV_STATE_DEGRADED);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock }
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock zpool_close(cb.cb_pool);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return (ret);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrockint
99653d4ee642c6528e88224f12409a5f23060994eschrockfmd_fmri_init(void)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock g_zfs = libzfs_init();
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (g_zfs == NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock else
99653d4ee642c6528e88224f12409a5f23060994eschrock return (0);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid
99653d4ee642c6528e88224f12409a5f23060994eschrockfmd_fmri_fini(void)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock if (g_zfs)
99653d4ee642c6528e88224f12409a5f23060994eschrock libzfs_fini(g_zfs);
99653d4ee642c6528e88224f12409a5f23060994eschrock}