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-rw-r--r--cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c511
1 files changed, 0 insertions, 511 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c
deleted file mode 100644
index d32662022cf5..000000000000
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c
+++ /dev/null
@@ -1,511 +0,0 @@
-/*
- * 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012 by Delphix. All rights reserved.
- * Copyright (c) 2013 Steven Hartland. All rights reserved.
- */
-
-/*
- * This file contains the functions which analyze the status of a pool. This
- * include both the status of an active pool, as well as the status exported
- * pools. Returns one of the ZPOOL_STATUS_* defines describing the status of
- * the pool. This status is independent (to a certain degree) from the state of
- * the pool. A pool's state describes only whether or not it is capable of
- * providing the necessary fault tolerance for data. The status describes the
- * overall status of devices. A pool that is online can still have a device
- * that is experiencing errors.
- *
- * Only a subset of the possible faults can be detected using 'zpool status',
- * and not all possible errors correspond to a FMA message ID. The explanation
- * is left up to the caller, depending on whether it is a live pool or an
- * import.
- */
-
-#include <libzfs.h>
-#include <string.h>
-#include <unistd.h>
-#include "libzfs_impl.h"
-#include "zfeature_common.h"
-
-/*
- * Message ID table. This must be kept in sync with the ZPOOL_STATUS_* defines
- * in libzfs.h. Note that there are some status results which go past the end
- * of this table, and hence have no associated message ID.
- */
-static char *zfs_msgid_table[] = {
- "ZFS-8000-14", /* ZPOOL_STATUS_CORRUPT_CACHE */
- "ZFS-8000-2Q", /* ZPOOL_STATUS_MISSING_DEV_R */
- "ZFS-8000-3C", /* ZPOOL_STATUS_MISSING_DEV_NR */
- "ZFS-8000-4J", /* ZPOOL_STATUS_CORRUPT_LABEL_R */
- "ZFS-8000-5E", /* ZPOOL_STATUS_CORRUPT_LABEL_NR */
- "ZFS-8000-6X", /* ZPOOL_STATUS_BAD_GUID_SUM */
- "ZFS-8000-72", /* ZPOOL_STATUS_CORRUPT_POOL */
- "ZFS-8000-8A", /* ZPOOL_STATUS_CORRUPT_DATA */
- "ZFS-8000-9P", /* ZPOOL_STATUS_FAILING_DEV */
- "ZFS-8000-A5", /* ZPOOL_STATUS_VERSION_NEWER */
- "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_MISMATCH */
- "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_ACTIVE */
- "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_REQUIRED */
- "ZFS-8000-HC", /* ZPOOL_STATUS_IO_FAILURE_WAIT */
- "ZFS-8000-JQ", /* ZPOOL_STATUS_IO_FAILURE_CONTINUE */
- "ZFS-8000-MM", /* ZPOOL_STATUS_IO_FAILURE_MMP */
- "ZFS-8000-K4", /* ZPOOL_STATUS_BAD_LOG */
- /*
- * The following results have no message ID.
- * ZPOOL_STATUS_UNSUP_FEAT_READ
- * ZPOOL_STATUS_UNSUP_FEAT_WRITE
- * ZPOOL_STATUS_FAULTED_DEV_R
- * ZPOOL_STATUS_FAULTED_DEV_NR
- * ZPOOL_STATUS_VERSION_OLDER
- * ZPOOL_STATUS_FEAT_DISABLED
- * ZPOOL_STATUS_RESILVERING
- * ZPOOL_STATUS_OFFLINE_DEV
- * ZPOOL_STATUS_REMOVED_DEV
- * ZPOOL_STATUS_OK
- */
-};
-
-#define NMSGID (sizeof (zfs_msgid_table) / sizeof (zfs_msgid_table[0]))
-
-/* ARGSUSED */
-static int
-vdev_missing(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_OPEN_FAILED);
-}
-
-/* ARGSUSED */
-static int
-vdev_faulted(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_FAULTED);
-}
-
-/* ARGSUSED */
-static int
-vdev_errors(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_DEGRADED ||
- vs->vs_read_errors != 0 || vs->vs_write_errors != 0 ||
- vs->vs_checksum_errors != 0);
-}
-
-/* ARGSUSED */
-static int
-vdev_broken(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_CANT_OPEN);
-}
-
-/* ARGSUSED */
-static int
-vdev_offlined(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_OFFLINE);
-}
-
-/* ARGSUSED */
-static int
-vdev_removed(vdev_stat_t *vs, uint_t vsc)
-{
- return (vs->vs_state == VDEV_STATE_REMOVED);
-}
-
-static int
-vdev_non_native_ashift(vdev_stat_t *vs, uint_t vsc)
-{
- return (VDEV_STAT_VALID(vs_physical_ashift, vsc) &&
- vs->vs_configured_ashift < vs->vs_physical_ashift);
-}
-
-/*
- * Detect if any leaf devices that have seen errors or could not be opened.
- */
-static boolean_t
-find_vdev_problem(nvlist_t *vdev, int (*func)(vdev_stat_t *, uint_t),
- boolean_t ignore_replacing)
-{
- nvlist_t **child;
- vdev_stat_t *vs;
- uint_t c, vsc, children;
-
- /*
- * Ignore problems within a 'replacing' vdev, since we're presumably in
- * the process of repairing any such errors, and don't want to call them
- * out again. We'll pick up the fact that a resilver is happening
- * later.
- */
- if (ignore_replacing == B_TRUE) {
- char *type;
-
- verify(nvlist_lookup_string(vdev, ZPOOL_CONFIG_TYPE,
- &type) == 0);
- if (strcmp(type, VDEV_TYPE_REPLACING) == 0)
- return (B_FALSE);
- }
-
- if (nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, &child,
- &children) == 0) {
- for (c = 0; c < children; c++)
- if (find_vdev_problem(child[c], func, ignore_replacing))
- return (B_TRUE);
- } else {
- verify(nvlist_lookup_uint64_array(vdev, ZPOOL_CONFIG_VDEV_STATS,
- (uint64_t **)&vs, &vsc) == 0);
-
- if (func(vs, vsc) != 0)
- return (B_TRUE);
- }
-
- /*
- * Check any L2 cache devs
- */
- if (nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_L2CACHE, &child,
- &children) == 0) {
- for (c = 0; c < children; c++)
- if (find_vdev_problem(child[c], func, ignore_replacing))
- return (B_TRUE);
- }
-
- return (B_FALSE);
-}
-
-/*
- * Active pool health status.
- *
- * To determine the status for a pool, we make several passes over the config,
- * picking the most egregious error we find. In order of importance, we do the
- * following:
- *
- * - Check for a complete and valid configuration
- * - Look for any faulted or missing devices in a non-replicated config
- * - Check for any data errors
- * - Check for any faulted or missing devices in a replicated config
- * - Look for any devices showing errors
- * - Check for any resilvering devices
- *
- * There can obviously be multiple errors within a single pool, so this routine
- * only picks the most damaging of all the current errors to report.
- */
-static zpool_status_t
-check_status(nvlist_t *config, boolean_t isimport)
-{
- nvlist_t *nvroot;
- vdev_stat_t *vs;
- pool_scan_stat_t *ps = NULL;
- uint_t vsc, psc;
- uint64_t nerr;
- uint64_t version;
- uint64_t stateval;
- uint64_t suspended;
- uint64_t hostid = 0;
- unsigned long system_hostid = get_system_hostid();
-
- verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
- &version) == 0);
- verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
- &nvroot) == 0);
- verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
- (uint64_t **)&vs, &vsc) == 0);
- verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
- &stateval) == 0);
-
- /*
- * Currently resilvering a vdev
- */
- (void) nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_SCAN_STATS,
- (uint64_t **)&ps, &psc);
- if (ps != NULL && ps->pss_func == POOL_SCAN_RESILVER &&
- ps->pss_state == DSS_SCANNING)
- return (ZPOOL_STATUS_RESILVERING);
-
- /*
- * The multihost property is set and the pool may be active.
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_ACTIVE) {
- mmp_state_t mmp_state;
- nvlist_t *nvinfo;
-
- nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
- mmp_state = fnvlist_lookup_uint64(nvinfo,
- ZPOOL_CONFIG_MMP_STATE);
-
- if (mmp_state == MMP_STATE_ACTIVE)
- return (ZPOOL_STATUS_HOSTID_ACTIVE);
- else if (mmp_state == MMP_STATE_NO_HOSTID)
- return (ZPOOL_STATUS_HOSTID_REQUIRED);
- else
- return (ZPOOL_STATUS_HOSTID_MISMATCH);
- }
-
- /*
- * Pool last accessed by another system.
- */
- (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid);
- if (hostid != 0 && (unsigned long)hostid != system_hostid &&
- stateval == POOL_STATE_ACTIVE)
- return (ZPOOL_STATUS_HOSTID_MISMATCH);
-
- /*
- * Newer on-disk version.
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_VERSION_NEWER)
- return (ZPOOL_STATUS_VERSION_NEWER);
-
- /*
- * Unsupported feature(s).
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_UNSUP_FEAT) {
- nvlist_t *nvinfo;
-
- verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO,
- &nvinfo) == 0);
- if (nvlist_exists(nvinfo, ZPOOL_CONFIG_CAN_RDONLY))
- return (ZPOOL_STATUS_UNSUP_FEAT_WRITE);
- return (ZPOOL_STATUS_UNSUP_FEAT_READ);
- }
-
- /*
- * Check that the config is complete.
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_BAD_GUID_SUM)
- return (ZPOOL_STATUS_BAD_GUID_SUM);
-
- /*
- * Check whether the pool has suspended.
- */
- if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_SUSPENDED,
- &suspended) == 0) {
- uint64_t reason;
-
- if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_SUSPENDED_REASON,
- &reason) == 0 && reason == ZIO_SUSPEND_MMP)
- return (ZPOOL_STATUS_IO_FAILURE_MMP);
-
- if (suspended == ZIO_FAILURE_MODE_CONTINUE)
- return (ZPOOL_STATUS_IO_FAILURE_CONTINUE);
- return (ZPOOL_STATUS_IO_FAILURE_WAIT);
- }
-
- /*
- * Could not read a log.
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_BAD_LOG) {
- return (ZPOOL_STATUS_BAD_LOG);
- }
-
- /*
- * Bad devices in non-replicated config.
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- find_vdev_problem(nvroot, vdev_faulted, B_TRUE))
- return (ZPOOL_STATUS_FAULTED_DEV_NR);
-
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- find_vdev_problem(nvroot, vdev_missing, B_TRUE))
- return (ZPOOL_STATUS_MISSING_DEV_NR);
-
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- find_vdev_problem(nvroot, vdev_broken, B_TRUE))
- return (ZPOOL_STATUS_CORRUPT_LABEL_NR);
-
- /*
- * Corrupted pool metadata
- */
- if (vs->vs_state == VDEV_STATE_CANT_OPEN &&
- vs->vs_aux == VDEV_AUX_CORRUPT_DATA)
- return (ZPOOL_STATUS_CORRUPT_POOL);
-
- /*
- * Persistent data errors.
- */
- if (!isimport) {
- if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
- &nerr) == 0 && nerr != 0)
- return (ZPOOL_STATUS_CORRUPT_DATA);
- }
-
- /*
- * Missing devices in a replicated config.
- */
- if (find_vdev_problem(nvroot, vdev_faulted, B_TRUE))
- return (ZPOOL_STATUS_FAULTED_DEV_R);
- if (find_vdev_problem(nvroot, vdev_missing, B_TRUE))
- return (ZPOOL_STATUS_MISSING_DEV_R);
- if (find_vdev_problem(nvroot, vdev_broken, B_TRUE))
- return (ZPOOL_STATUS_CORRUPT_LABEL_R);
-
- /*
- * Devices with errors
- */
- if (!isimport && find_vdev_problem(nvroot, vdev_errors, B_TRUE))
- return (ZPOOL_STATUS_FAILING_DEV);
-
- /*
- * Offlined devices
- */
- if (find_vdev_problem(nvroot, vdev_offlined, B_TRUE))
- return (ZPOOL_STATUS_OFFLINE_DEV);
-
- /*
- * Removed device
- */
- if (find_vdev_problem(nvroot, vdev_removed, B_TRUE))
- return (ZPOOL_STATUS_REMOVED_DEV);
-
- /*
- * Suboptimal, but usable, ashift configuration.
- */
- if (find_vdev_problem(nvroot, vdev_non_native_ashift, B_FALSE))
- return (ZPOOL_STATUS_NON_NATIVE_ASHIFT);
-
- /*
- * Outdated, but usable, version
- */
- if (SPA_VERSION_IS_SUPPORTED(version) && version != SPA_VERSION)
- return (ZPOOL_STATUS_VERSION_OLDER);
-
- /*
- * Usable pool with disabled features
- */
- if (version >= SPA_VERSION_FEATURES) {
- int i;
- nvlist_t *feat;
-
- if (isimport) {
- feat = fnvlist_lookup_nvlist(config,
- ZPOOL_CONFIG_LOAD_INFO);
- if (nvlist_exists(feat, ZPOOL_CONFIG_ENABLED_FEAT))
- feat = fnvlist_lookup_nvlist(feat,
- ZPOOL_CONFIG_ENABLED_FEAT);
- } else {
- feat = fnvlist_lookup_nvlist(config,
- ZPOOL_CONFIG_FEATURE_STATS);
- }
-
- for (i = 0; i < SPA_FEATURES; i++) {
- zfeature_info_t *fi = &spa_feature_table[i];
- if (!nvlist_exists(feat, fi->fi_guid))
- return (ZPOOL_STATUS_FEAT_DISABLED);
- }
- }
-
- return (ZPOOL_STATUS_OK);
-}
-
-zpool_status_t
-zpool_get_status(zpool_handle_t *zhp, char **msgid)
-{
- zpool_status_t ret = check_status(zhp->zpool_config, B_FALSE);
-
- if (ret >= NMSGID)
- *msgid = NULL;
- else
- *msgid = zfs_msgid_table[ret];
-
- return (ret);
-}
-
-zpool_status_t
-zpool_import_status(nvlist_t *config, char **msgid)
-{
- zpool_status_t ret = check_status(config, B_TRUE);
-
- if (ret >= NMSGID)
- *msgid = NULL;
- else
- *msgid = zfs_msgid_table[ret];
-
- return (ret);
-}
-
-static void
-dump_ddt_stat(const ddt_stat_t *dds, int h)
-{
- char refcnt[6];
- char blocks[6], lsize[6], psize[6], dsize[6];
- char ref_blocks[6], ref_lsize[6], ref_psize[6], ref_dsize[6];
-
- if (dds == NULL || dds->dds_blocks == 0)
- return;
-
- if (h == -1)
- (void) strcpy(refcnt, "Total");
- else
- zfs_nicenum(1ULL << h, refcnt, sizeof (refcnt));
-
- zfs_nicenum(dds->dds_blocks, blocks, sizeof (blocks));
- zfs_nicenum(dds->dds_lsize, lsize, sizeof (lsize));
- zfs_nicenum(dds->dds_psize, psize, sizeof (psize));
- zfs_nicenum(dds->dds_dsize, dsize, sizeof (dsize));
- zfs_nicenum(dds->dds_ref_blocks, ref_blocks, sizeof (ref_blocks));
- zfs_nicenum(dds->dds_ref_lsize, ref_lsize, sizeof (ref_lsize));
- zfs_nicenum(dds->dds_ref_psize, ref_psize, sizeof (ref_psize));
- zfs_nicenum(dds->dds_ref_dsize, ref_dsize, sizeof (ref_dsize));
-
- (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
- refcnt,
- blocks, lsize, psize, dsize,
- ref_blocks, ref_lsize, ref_psize, ref_dsize);
-}
-
-/*
- * Print the DDT histogram and the column totals.
- */
-void
-zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh)
-{
- int h;
-
- (void) printf("\n");
-
- (void) printf("bucket "
- " allocated "
- " referenced \n");
- (void) printf("______ "
- "______________________________ "
- "______________________________\n");
-
- (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
- "refcnt",
- "blocks", "LSIZE", "PSIZE", "DSIZE",
- "blocks", "LSIZE", "PSIZE", "DSIZE");
-
- (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n",
- "------",
- "------", "-----", "-----", "-----",
- "------", "-----", "-----", "-----");
-
- for (h = 0; h < 64; h++)
- dump_ddt_stat(&ddh->ddh_stat[h], h);
-
- dump_ddt_stat(dds_total, -1);
-
- (void) printf("\n");
-}