fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 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.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
f83b46baf98d276f5f84fa84c8b461f412ac1f5ePaul Dagnelie * Copyright (c) 2013, 2015 by Delphix. All rights reserved.
b327cd3f3b4dab4f29e7140159b1e01ed2ceef2aIgor Kozhukhov * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Functions to convert between a list of vdevs and an nvlist representing the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * configuration. Each entry in the list can be one of:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Device vdevs
fa9e4066f08beec538e775443c5be79dd423fcabahrens * disk=(path=..., devid=...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file=(path=...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Group vdevs
99653d4ee642c6528e88224f12409a5f23060994eschrock * raidz[1|2]=(...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * mirror=(...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
99653d4ee642c6528e88224f12409a5f23060994eschrock * Hot spares
99653d4ee642c6528e88224f12409a5f23060994eschrock *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * While the underlying implementation supports it, group vdevs cannot contain
fa9e4066f08beec538e775443c5be79dd423fcabahrens * other group vdevs. All userland verification of devices is contained within
fa9e4066f08beec538e775443c5be79dd423fcabahrens * this file. If successful, the nvlist returned can be passed directly to the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * kernel; we've done as much verification as possible in userland.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
99653d4ee642c6528e88224f12409a5f23060994eschrock * Hot spares are a special case, and passed down as an array of disk vdevs, at
99653d4ee642c6528e88224f12409a5f23060994eschrock * the same level as the root of the vdev tree.
99653d4ee642c6528e88224f12409a5f23060994eschrock *
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * The only function exported by this file is 'make_root_vdev'. The
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * function performs several passes:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 1. Construct the vdev specification. Performs syntax validation and
fa9e4066f08beec538e775443c5be79dd423fcabahrens * makes sure each device is valid.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 2. Check for devices in use. Using libdiskmgt, makes sure that no
fa9e4066f08beec538e775443c5be79dd423fcabahrens * devices are also in use. Some can be overridden using the 'force'
fa9e4066f08beec538e775443c5be79dd423fcabahrens * flag, others cannot.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 3. Check for replication errors if the 'force' flag is not specified.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * validates that the replication level is consistent across the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * entire pool.
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * 4. Call libzfs to label any whole disks with an EFI label.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <assert.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <devid.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <errno.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <fcntl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <libdiskmgt.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <libintl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <libnvpair.h>
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal#include <limits.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdio.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <string.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <unistd.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/efi_partition.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/stat.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/vtoc.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/mntent.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include "zpool_util.h"
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define BACKUP_SLICE "s2"
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * For any given vdev specification, we can have multiple errors. The
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vdev_error() function keeps track of whether we have seen an error yet, and
fa9e4066f08beec538e775443c5be79dd423fcabahrens * prints out a header if its the first error we've seen.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrockboolean_t error_seen;
99653d4ee642c6528e88224f12409a5f23060994eschrockboolean_t is_force;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock/*PRINTFLIKE1*/
99653d4ee642c6528e88224f12409a5f23060994eschrockstatic void
fa9e4066f08beec538e775443c5be79dd423fcabahrensvdev_error(const char *fmt, ...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_list ap;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!error_seen) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, gettext("invalid vdev specification\n"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!is_force)
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, gettext("use '-f' to override "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "the following errors:\n"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, gettext("the following errors "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "must be manually repaired:\n"));
99653d4ee642c6528e88224f12409a5f23060994eschrock error_seen = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_start(ap, fmt);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) vfprintf(stderr, fmt, ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens va_end(ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrockstatic void
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrocklibdiskmgt_error(int error)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock /*
99653d4ee642c6528e88224f12409a5f23060994eschrock * ENXIO/ENODEV is a valid error message if the device doesn't live in
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * /dev/dsk. Don't bother printing an error message in this case.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrock if (error == ENXIO || error == ENODEV)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock return;
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock (void) fprintf(stderr, gettext("warning: device in use checking "
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock "failed: %s\n"), strerror(error));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock * Validate a device, passing the bulk of the work off to libdiskmgt.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
99653d4ee642c6528e88224f12409a5f23060994eschrockcheck_slice(const char *path, int force, boolean_t wholedisk, boolean_t isspare)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock char *msg;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock int error = 0;
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante dm_who_type_t who;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante if (force)
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante who = DM_WHO_ZPOOL_FORCE;
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante else if (isspare)
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante who = DM_WHO_ZPOOL_SPARE;
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante else
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante who = DM_WHO_ZPOOL;
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante
03a818bc5cc6f80c183dfb3334f4d0ff2ab36fccmmusante if (dm_inuse((char *)path, &msg, who, &error) || error) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if (error != 0) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock libdiskmgt_error(error);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (0);
46657f8d750bdb71753495ce2919170f126b8e34mmusante } else {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock vdev_error("%s", msg);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock free(msg);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock * If we're given a whole disk, ignore overlapping slices since we're
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock * about to label it anyway.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock error = 0;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if (!wholedisk && !force &&
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock (dm_isoverlapping((char *)path, &msg, &error) || error)) {
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante if (error == 0) {
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante /* dm_isoverlapping returned -1 */
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante vdev_error(gettext("%s overlaps with %s\n"), path, msg);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante free(msg);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante return (-1);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante } else if (error != ENODEV) {
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante /* libdiskmgt's devcache only handles physical drives */
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock libdiskmgt_error(error);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Validate a whole disk. Iterate over all slices on the disk and make sure
fa9e4066f08beec538e775443c5be79dd423fcabahrens * that none is in use by calling check_slice().
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
99653d4ee642c6528e88224f12409a5f23060994eschrockcheck_disk(const char *name, dm_descriptor_t disk, int force, int isspare)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_descriptor_t *drive, *media, *slice;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int err = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int i;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int ret;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get the drive associated with this disk. This should never fail,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * because we already have an alias handle open for the device.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((drive = dm_get_associated_descriptors(disk, DM_DRIVE,
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock &err)) == NULL || *drive == NULL) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if (err)
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock libdiskmgt_error(err);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (0);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((media = dm_get_associated_descriptors(*drive, DM_MEDIA,
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock &err)) == NULL) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock dm_free_descriptors(drive);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if (err)
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock libdiskmgt_error(err);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (0);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_free_descriptors(drive);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * It is possible that the user has specified a removable media drive,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and the media is not present.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (*media == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_free_descriptors(media);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock vdev_error(gettext("'%s' has no media in drive\n"), name);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((slice = dm_get_associated_descriptors(*media, DM_SLICE,
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock &err)) == NULL) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock dm_free_descriptors(media);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if (err)
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock libdiskmgt_error(err);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (0);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_free_descriptors(media);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Iterate over all slices and report any errors. We don't care about
fa9e4066f08beec538e775443c5be79dd423fcabahrens * overlapping slices because we are using the whole disk.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (i = 0; slice[i] != NULL; i++) {
99653d4ee642c6528e88224f12409a5f23060994eschrock char *name = dm_get_name(slice[i], &err);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (check_slice(name, force, B_TRUE, isspare) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = -1;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock dm_free_name(name);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_free_descriptors(slice);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock * Validate a device.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
99653d4ee642c6528e88224f12409a5f23060994eschrockcheck_device(const char *path, boolean_t force, boolean_t isspare)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens dm_descriptor_t desc;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int err;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock char *dev;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * For whole disks, libdiskmgt does not include the leading dev path.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens dev = strrchr(path, '/');
fa9e4066f08beec538e775443c5be79dd423fcabahrens assert(dev != NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens dev++;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock if ((desc = dm_get_descriptor_by_name(DM_ALIAS, dev, &err)) != NULL) {
99653d4ee642c6528e88224f12409a5f23060994eschrock err = check_disk(path, desc, force, isspare);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock dm_free_descriptor(desc);
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock return (err);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock return (check_slice(path, force, B_FALSE, isspare));
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Check that a file is valid. All we can do in this case is check that it's
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante * not in use by another pool, and not in use by swap.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
99653d4ee642c6528e88224f12409a5f23060994eschrockcheck_file(const char *file, boolean_t force, boolean_t isspare)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock char *name;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int fd;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int ret = 0;
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante int err;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock pool_state_t state;
99653d4ee642c6528e88224f12409a5f23060994eschrock boolean_t inuse;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante if (dm_inuse_swap(file, &err)) {
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante if (err)
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante libdiskmgt_error(err);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante else
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante vdev_error(gettext("%s is currently used by swap. "
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante "Please see swap(1M).\n"), file);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante return (-1);
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante }
181c2f42873ba1b0fdc4d0470593ad30176af1f0mmusante
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((fd = open(file, O_RDONLY)) < 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) == 0 && inuse) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock const char *desc;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock switch (state) {
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock case POOL_STATE_ACTIVE:
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock desc = gettext("active");
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock break;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock case POOL_STATE_EXPORTED:
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock desc = gettext("exported");
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock break;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock case POOL_STATE_POTENTIALLY_ACTIVE:
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock desc = gettext("potentially active");
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock break;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock default:
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock desc = gettext("unknown");
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock break;
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock }
46a2abf27af40eda17a3f97e79eda1aef4e3c3c8eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock /*
99653d4ee642c6528e88224f12409a5f23060994eschrock * Allow hot spares to be shared between pools.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrock if (state == POOL_STATE_SPARE && isspare)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (0);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (state == POOL_STATE_ACTIVE ||
99653d4ee642c6528e88224f12409a5f23060994eschrock state == POOL_STATE_SPARE || !force) {
99653d4ee642c6528e88224f12409a5f23060994eschrock switch (state) {
99653d4ee642c6528e88224f12409a5f23060994eschrock case POOL_STATE_SPARE:
99653d4ee642c6528e88224f12409a5f23060994eschrock vdev_error(gettext("%s is reserved as a hot "
99653d4ee642c6528e88224f12409a5f23060994eschrock "spare for pool %s\n"), file, name);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock default:
99653d4ee642c6528e88224f12409a5f23060994eschrock vdev_error(gettext("%s is part of %s pool "
99653d4ee642c6528e88224f12409a5f23060994eschrock "'%s'\n"), file, desc, name);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = -1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(name);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor/*
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * By "whole disk" we mean an entire physical disk (something we can
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * label, toggle the write cache on, etc.) as opposed to the full
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * capacity of a pseudo-device such as lofi or did. We act as if we
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * are labeling the disk, which should be a pretty good test of whether
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * it's a viable device or not. Returns B_TRUE if it is and B_FALSE if
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * it isn't.
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor */
99653d4ee642c6528e88224f12409a5f23060994eschrockstatic boolean_t
8488aeb5df27784d479c16cde06a9e25cd9a1152tayloris_whole_disk(const char *arg)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor struct dk_gpt *label;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor int fd;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor char path[MAXPATHLEN];
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (void) snprintf(path, sizeof (path), "%s%s%s",
6401734d545a04c18f68b448202f9d9a77216bb9Will Andrews ZFS_RDISK_ROOT, strrchr(arg, '/'), BACKUP_SLICE);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if ((fd = open(path, O_RDWR | O_NDELAY)) < 0)
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor return (B_FALSE);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (efi_alloc_and_init(fd, EFI_NUMPAR, &label) != 0) {
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (void) close(fd);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor return (B_FALSE);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor }
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor efi_free(label);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (void) close(fd);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor return (B_TRUE);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create a leaf vdev. Determine if this is a file or a device. If it's a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * device, fill in the device id to make a complete nvlist. Valid forms for a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * leaf vdev are:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * /dev/dsk/xxx Complete disk path
fa9e4066f08beec538e775443c5be79dd423fcabahrens * /xxx Full path to file
fa9e4066f08beec538e775443c5be79dd423fcabahrens * xxx Shorthand for /dev/dsk/xxx
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic nvlist_t *
8654d0253136055bd4cc2423d87378e8a37f2eb5perrinmake_leaf_vdev(const char *arg, uint64_t is_log)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens char path[MAXPATHLEN];
fa9e4066f08beec538e775443c5be79dd423fcabahrens struct stat64 statbuf;
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *vdev = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *type = NULL;
99653d4ee642c6528e88224f12409a5f23060994eschrock boolean_t wholedisk = B_FALSE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Determine what type of vdev this is, and put the full path into
fa9e4066f08beec538e775443c5be79dd423fcabahrens * 'path'. We detect whether this is a device of file afterwards by
fa9e4066f08beec538e775443c5be79dd423fcabahrens * checking the st_mode of the file.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (arg[0] == '/') {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Complete device or file path. Exact type is determined by
fa9e4066f08beec538e775443c5be79dd423fcabahrens * examining the file descriptor afterwards.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor wholedisk = is_whole_disk(arg);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (!wholedisk && (stat64(arg, &statbuf) != 0)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr,
fa9e4066f08beec538e775443c5be79dd423fcabahrens gettext("cannot open '%s': %s\n"),
fa9e4066f08beec538e775443c5be79dd423fcabahrens arg, strerror(errno));
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) strlcpy(path, arg, sizeof (path));
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This may be a short path for a device, or it could be total
fa9e4066f08beec538e775443c5be79dd423fcabahrens * gibberish. Check to see if it's a known device in
fa9e4066f08beec538e775443c5be79dd423fcabahrens * /dev/dsk/. As part of this check, see if we've been given a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * an entire disk (minus the slice number).
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
6401734d545a04c18f68b448202f9d9a77216bb9Will Andrews (void) snprintf(path, sizeof (path), "%s/%s", ZFS_DISK_ROOT,
fa9e4066f08beec538e775443c5be79dd423fcabahrens arg);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor wholedisk = is_whole_disk(path);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (!wholedisk && (stat64(path, &statbuf) != 0)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If we got ENOENT, then the user gave us
fa9e4066f08beec538e775443c5be79dd423fcabahrens * gibberish, so try to direct them with a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * reasonable error message. Otherwise,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * regurgitate strerror() since it's the best we
fa9e4066f08beec538e775443c5be79dd423fcabahrens * can do.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (errno == ENOENT) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr,
fa9e4066f08beec538e775443c5be79dd423fcabahrens gettext("cannot open '%s': no such "
6401734d545a04c18f68b448202f9d9a77216bb9Will Andrews "device in %s\n"), arg, ZFS_DISK_ROOT);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr,
fa9e4066f08beec538e775443c5be79dd423fcabahrens gettext("must be a full path or "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "shorthand device name\n"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr,
fa9e4066f08beec538e775443c5be79dd423fcabahrens gettext("cannot open '%s': %s\n"),
fa9e4066f08beec538e775443c5be79dd423fcabahrens path, strerror(errno));
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Determine whether this is a device or a file.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (wholedisk || S_ISBLK(statbuf.st_mode)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens type = VDEV_TYPE_DISK;
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else if (S_ISREG(statbuf.st_mode)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens type = VDEV_TYPE_FILE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, gettext("cannot use '%s': must be a "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "block device or regular file\n"), path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Finally, we have the complete device or file, and we know that it is
fa9e4066f08beec538e775443c5be79dd423fcabahrens * acceptable to use. Construct the nvlist to describe this vdev. All
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vdevs have a 'path' element, and devices also have a 'devid' element.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_string(vdev, ZPOOL_CONFIG_PATH, path) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, type) == 0);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_LOG, is_log) == 0);
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock if (strcmp(type, VDEV_TYPE_DISK) == 0)
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_WHOLE_DISK,
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock (uint64_t)wholedisk) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * For a whole disk, defer getting its devid until after labeling it.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (S_ISBLK(statbuf.st_mode) && !wholedisk) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get the devid for the device.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens int fd;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ddi_devid_t devid;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *minor = NULL, *devid_str = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((fd = open(path, O_RDONLY)) < 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr, gettext("cannot open '%s': "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "%s\n"), path, strerror(errno));
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_free(vdev);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_get(fd, &devid) == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_get_minor_name(fd, &minor) == 0 &&
fa9e4066f08beec538e775443c5be79dd423fcabahrens (devid_str = devid_str_encode(devid, minor)) !=
fa9e4066f08beec538e775443c5be79dd423fcabahrens NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_string(vdev,
fa9e4066f08beec538e775443c5be79dd423fcabahrens ZPOOL_CONFIG_DEVID, devid_str) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_str != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_str_free(devid_str);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (minor != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_str_free(minor);
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_free(devid);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (vdev);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Go through and verify the replication level of the pool is consistent.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Performs the following checks:
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * For the new spec, verifies that devices in mirrors and raidz are the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * same size.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If the current configuration already has inconsistent replication
fa9e4066f08beec538e775443c5be79dd423fcabahrens * levels, ignore any other potential problems in the new spec.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Otherwise, make sure that the current spec (if there is one) and the new
fa9e4066f08beec538e775443c5be79dd423fcabahrens * spec have consistent replication levels.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct replication_level {
99653d4ee642c6528e88224f12409a5f23060994eschrock char *zprl_type;
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t zprl_children;
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t zprl_parity;
fa9e4066f08beec538e775443c5be79dd423fcabahrens} replication_level_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor#define ZPOOL_FUZZ (16 * 1024 * 1024)
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Given a list of toplevel vdevs, return the current replication level. If
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the config is inconsistent, then NULL is returned. If 'fatal' is set, then
fa9e4066f08beec538e775443c5be79dd423fcabahrens * an error message will be displayed for each self-inconsistent vdev.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic replication_level_t *
99653d4ee642c6528e88224f12409a5f23060994eschrockget_replication(nvlist_t *nvroot, boolean_t fatal)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t **top;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint_t t, toplevels;
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t **child;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint_t c, children;
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *nv;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *type;
b327cd3f3b4dab4f29e7140159b1e01ed2ceef2aIgor Kozhukhov replication_level_t lastrep = {0};
b327cd3f3b4dab4f29e7140159b1e01ed2ceef2aIgor Kozhukhov replication_level_t rep;
b327cd3f3b4dab4f29e7140159b1e01ed2ceef2aIgor Kozhukhov replication_level_t *ret;
99653d4ee642c6528e88224f12409a5f23060994eschrock boolean_t dontreport;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = safe_malloc(sizeof (replication_level_t));
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &top, &toplevels) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (t = 0; t < toplevels; t++) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin uint64_t is_log = B_FALSE;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
fa9e4066f08beec538e775443c5be79dd423fcabahrens nv = top[t];
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin /*
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * For separate logs we ignore the top level vdev replication
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * constraints.
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin */
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (is_log)
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin continue;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE,
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin &type) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &child, &children) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This is a 'file' or 'disk' vdev.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type = type;
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_children = 1;
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_parity = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t vdev_size;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This is a mirror or RAID-Z vdev. Go through and make
fa9e4066f08beec538e775443c5be79dd423fcabahrens * sure the contents are all the same (files vs. disks),
fa9e4066f08beec538e775443c5be79dd423fcabahrens * keeping track of the number of elements in the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * process.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We also check that the size of each vdev (if it can
fa9e4066f08beec538e775443c5be79dd423fcabahrens * be determined) is the same.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type = type;
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_children = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_lookup_uint64(nv,
99653d4ee642c6528e88224f12409a5f23060994eschrock ZPOOL_CONFIG_NPARITY,
99653d4ee642c6528e88224f12409a5f23060994eschrock &rep.zprl_parity) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock assert(rep.zprl_parity != 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock } else {
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_parity = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * The 'dontreport' variable indicates that we've
fa9e4066f08beec538e775443c5be79dd423fcabahrens * already reported an error for this spec, so don't
fa9e4066f08beec538e775443c5be79dd423fcabahrens * bother doing it again.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens type = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens dontreport = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_size = -1ULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < children; c++) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *cnv = child[c];
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *path;
fa9e4066f08beec538e775443c5be79dd423fcabahrens struct stat64 statbuf;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t size = -1ULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *childtype;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int fd, err;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_children++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(cnv,
fa9e4066f08beec538e775443c5be79dd423fcabahrens ZPOOL_CONFIG_TYPE, &childtype) == 0);
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock /*
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * If this is a replacing or spare vdev, then
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock * get the real first child of the vdev.
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock */
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock if (strcmp(childtype,
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock VDEV_TYPE_REPLACING) == 0 ||
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock strcmp(childtype, VDEV_TYPE_SPARE) == 0) {
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock nvlist_t **rchild;
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock uint_t rchildren;
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock verify(nvlist_lookup_nvlist_array(cnv,
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock ZPOOL_CONFIG_CHILDREN, &rchild,
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock &rchildren) == 0);
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock assert(rchildren == 2);
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock cnv = rchild[0];
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock verify(nvlist_lookup_string(cnv,
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock ZPOOL_CONFIG_TYPE,
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock &childtype) == 0);
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock }
94de1d4cf6ec0a3bf040dcc4b8df107c4ed36b51eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(cnv,
fa9e4066f08beec538e775443c5be79dd423fcabahrens ZPOOL_CONFIG_PATH, &path) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If we have a raidz/mirror that combines disks
fa9e4066f08beec538e775443c5be79dd423fcabahrens * with files, report it as an error.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (!dontreport && type != NULL &&
fa9e4066f08beec538e775443c5be79dd423fcabahrens strcmp(type, childtype) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ret != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fatal)
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_error(gettext(
fa9e4066f08beec538e775443c5be79dd423fcabahrens "mismatched replication "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "level: %s contains both "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "files and devices\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock dontreport = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * According to stat(2), the value of 'st_size'
fa9e4066f08beec538e775443c5be79dd423fcabahrens * is undefined for block devices and character
fa9e4066f08beec538e775443c5be79dd423fcabahrens * devices. But there is no effective way to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * determine the real size in userland.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Instead, we'll take advantage of an
fa9e4066f08beec538e775443c5be79dd423fcabahrens * implementation detail of spec_size(). If the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * device is currently open, then we (should)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * return a valid size.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If we still don't get a valid size (indicated
fa9e4066f08beec538e775443c5be79dd423fcabahrens * by a size of 0 or MAXOFFSET_T), then ignore
fa9e4066f08beec538e775443c5be79dd423fcabahrens * this device altogether.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((fd = open(path, O_RDONLY)) >= 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens err = fstat64(fd, &statbuf);
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens err = stat64(path, &statbuf);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (err != 0 ||
fa9e4066f08beec538e775443c5be79dd423fcabahrens statbuf.st_size == 0 ||
fa9e4066f08beec538e775443c5be79dd423fcabahrens statbuf.st_size == MAXOFFSET_T)
fa9e4066f08beec538e775443c5be79dd423fcabahrens continue;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens size = statbuf.st_size;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * Also make sure that devices and
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * slices have a consistent size. If
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * they differ by a significant amount
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * (~16MB) then report an error.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (!dontreport &&
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (vdev_size != -1ULL &&
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (labs(size - vdev_size) >
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor ZPOOL_FUZZ))) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ret != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fatal)
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_error(gettext(
fa9e4066f08beec538e775443c5be79dd423fcabahrens "%s contains devices of "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "different sizes\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock dontreport = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens type = childtype;
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_size = size;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * At this point, we have the replication of the last toplevel
fa9e4066f08beec538e775443c5be79dd423fcabahrens * vdev in 'rep'. Compare it to 'lastrep' to see if its
fa9e4066f08beec538e775443c5be79dd423fcabahrens * different.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrock if (lastrep.zprl_type != NULL) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(lastrep.zprl_type, rep.zprl_type) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ret != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fatal)
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: "
99653d4ee642c6528e88224f12409a5f23060994eschrock "both %s and %s vdevs are "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "present\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock lastrep.zprl_type, rep.zprl_type);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock } else if (lastrep.zprl_parity != rep.zprl_parity) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (ret)
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fatal)
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: "
99653d4ee642c6528e88224f12409a5f23060994eschrock "both %llu and %llu device parity "
99653d4ee642c6528e88224f12409a5f23060994eschrock "%s vdevs are present\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock lastrep.zprl_parity,
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_parity,
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type);
99653d4ee642c6528e88224f12409a5f23060994eschrock else
99653d4ee642c6528e88224f12409a5f23060994eschrock return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock } else if (lastrep.zprl_children != rep.zprl_children) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (ret)
99653d4ee642c6528e88224f12409a5f23060994eschrock free(ret);
99653d4ee642c6528e88224f12409a5f23060994eschrock ret = NULL;
99653d4ee642c6528e88224f12409a5f23060994eschrock if (fatal)
99653d4ee642c6528e88224f12409a5f23060994eschrock vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: "
99653d4ee642c6528e88224f12409a5f23060994eschrock "both %llu-way and %llu-way %s "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "vdevs are present\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock lastrep.zprl_children,
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_children,
99653d4ee642c6528e88224f12409a5f23060994eschrock rep.zprl_type);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens lastrep = rep;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if (ret != NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock *ret = rep;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Check the replication level of the vdev spec against the current pool. Calls
fa9e4066f08beec538e775443c5be79dd423fcabahrens * get_replication() to make sure the new spec is self-consistent. If the pool
fa9e4066f08beec538e775443c5be79dd423fcabahrens * has a consistent replication level, then we ignore any errors. Otherwise,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * report any difference between the two.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
fa9e4066f08beec538e775443c5be79dd423fcabahrenscheck_replication(nvlist_t *config, nvlist_t *newroot)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor nvlist_t **child;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor uint_t children;
fa9e4066f08beec538e775443c5be79dd423fcabahrens replication_level_t *current = NULL, *new;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int ret;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If we have a current pool configuration, check to see if it's
fa9e4066f08beec538e775443c5be79dd423fcabahrens * self-consistent. If not, simply return success.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (config != NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *nvroot;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &nvroot) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((current = get_replication(nvroot, B_FALSE)) == NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor /*
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * for spares there may be no children, and therefore no
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * replication level to check
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if ((nvlist_lookup_nvlist_array(newroot, ZPOOL_CONFIG_CHILDREN,
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor &child, &children) != 0) || (children == 0)) {
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor free(current);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor return (0);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin /*
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * If all we have is logs then there's no replication level to check.
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin */
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (num_logs(newroot) == children) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin free(current);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (0);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get the replication level of the new vdev spec, reporting any
fa9e4066f08beec538e775443c5be79dd423fcabahrens * inconsistencies found.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((new = get_replication(newroot, B_TRUE)) == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(current);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Check to see if the new vdev spec matches the replication level of
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the current pool.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (current != NULL) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(current->zprl_type, new->zprl_type) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: pool uses %s "
99653d4ee642c6528e88224f12409a5f23060994eschrock "and new vdev is %s\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock current->zprl_type, new->zprl_type);
99653d4ee642c6528e88224f12409a5f23060994eschrock ret = -1;
99653d4ee642c6528e88224f12409a5f23060994eschrock } else if (current->zprl_parity != new->zprl_parity) {
99653d4ee642c6528e88224f12409a5f23060994eschrock vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: pool uses %llu "
99653d4ee642c6528e88224f12409a5f23060994eschrock "device parity and new vdev uses %llu\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock current->zprl_parity, new->zprl_parity);
99653d4ee642c6528e88224f12409a5f23060994eschrock ret = -1;
99653d4ee642c6528e88224f12409a5f23060994eschrock } else if (current->zprl_children != new->zprl_children) {
99653d4ee642c6528e88224f12409a5f23060994eschrock vdev_error(gettext(
99653d4ee642c6528e88224f12409a5f23060994eschrock "mismatched replication level: pool uses %llu-way "
99653d4ee642c6528e88224f12409a5f23060994eschrock "%s and new vdev uses %llu-way %s\n"),
99653d4ee642c6528e88224f12409a5f23060994eschrock current->zprl_children, current->zprl_type,
99653d4ee642c6528e88224f12409a5f23060994eschrock new->zprl_children, new->zprl_type);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ret = -1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(new);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (current != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(current);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Go through and find any whole disks in the vdev specification, labelling them
fa9e4066f08beec538e775443c5be79dd423fcabahrens * as appropriate. When constructing the vdev spec, we were unable to open this
fa9e4066f08beec538e775443c5be79dd423fcabahrens * device in order to provide a devid. Now that we have labelled the disk and
fa9e4066f08beec538e775443c5be79dd423fcabahrens * know that slice 0 is valid, we can construct the devid now.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * If the disk was already labeled with an EFI label, we will have gotten the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * devid already (because we were able to open the whole disk). Otherwise, we
fa9e4066f08beec538e775443c5be79dd423fcabahrens * need to get the devid after we label the disk.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic int
8488aeb5df27784d479c16cde06a9e25cd9a1152taylormake_disks(zpool_handle_t *zhp, nvlist_t *nv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t **child;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint_t c, children;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *type, *path, *diskname;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char buf[MAXPATHLEN];
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock uint64_t wholedisk;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int fd;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int ret;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ddi_devid_t devid;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *minor = NULL, *devid_str = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &child, &children) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strcmp(type, VDEV_TYPE_DISK) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We have a disk device. Get the path to the device
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor * and see if it's a whole disk by appending the backup
fa9e4066f08beec538e775443c5be79dd423fcabahrens * slice and stat()ing the device.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock &wholedisk) != 0 || !wholedisk)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens diskname = strrchr(path, '/');
fa9e4066f08beec538e775443c5be79dd423fcabahrens assert(diskname != NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens diskname++;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (zpool_label_disk(g_zfs, zhp, diskname) == -1)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Fill in the devid, now that we've labeled the disk.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) snprintf(buf, sizeof (buf), "%ss0", path);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((fd = open(buf, O_RDONLY)) < 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) fprintf(stderr,
fa9e4066f08beec538e775443c5be79dd423fcabahrens gettext("cannot open '%s': %s\n"),
fa9e4066f08beec538e775443c5be79dd423fcabahrens buf, strerror(errno));
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_get(fd, &devid) == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_get_minor_name(fd, &minor) == 0 &&
fa9e4066f08beec538e775443c5be79dd423fcabahrens (devid_str = devid_str_encode(devid, minor)) !=
fa9e4066f08beec538e775443c5be79dd423fcabahrens NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_string(nv,
fa9e4066f08beec538e775443c5be79dd423fcabahrens ZPOOL_CONFIG_DEVID, devid_str) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (devid_str != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_str_free(devid_str);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (minor != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_str_free(minor);
fa9e4066f08beec538e775443c5be79dd423fcabahrens devid_free(devid);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock /*
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock * Update the path to refer to the 's0' slice. The presence of
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock * the 'whole_disk' field indicates to the CLI that we should
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock * chop off the slice number when displaying the device in
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock * future output.
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock */
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock verify(nvlist_add_string(nv, ZPOOL_CONFIG_PATH, buf) == 0);
afefbcddfd8caf5f3b2da510d9439471ab225040eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) close(fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < children; c++)
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if ((ret = make_disks(zhp, child[c])) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (ret);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
99653d4ee642c6528e88224f12409a5f23060994eschrock &child, &children) == 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock for (c = 0; c < children; c++)
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if ((ret = make_disks(zhp, child[c])) != 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (ret);
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan &child, &children) == 0)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan for (c = 0; c < children; c++)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if ((ret = make_disks(zhp, child[c])) != 0)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan return (ret);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * Determine if the given path is a hot spare within the given configuration.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockstatic boolean_t
99653d4ee642c6528e88224f12409a5f23060994eschrockis_spare(nvlist_t *config, const char *path)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock int fd;
99653d4ee642c6528e88224f12409a5f23060994eschrock pool_state_t state;
3ccfa83cd9cddd1e34808ba18082c156758c5ec8ahrens char *name = NULL;
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_t *label;
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t guid, spareguid;
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_t *nvroot;
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_t **spares;
99653d4ee642c6528e88224f12409a5f23060994eschrock uint_t i, nspares;
99653d4ee642c6528e88224f12409a5f23060994eschrock boolean_t inuse;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((fd = open(path, O_RDONLY)) < 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (B_FALSE);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0 ||
99653d4ee642c6528e88224f12409a5f23060994eschrock !inuse ||
99653d4ee642c6528e88224f12409a5f23060994eschrock state != POOL_STATE_SPARE ||
99653d4ee642c6528e88224f12409a5f23060994eschrock zpool_read_label(fd, &label) != 0) {
3ccfa83cd9cddd1e34808ba18082c156758c5ec8ahrens free(name);
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) close(fd);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (B_FALSE);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
3ccfa83cd9cddd1e34808ba18082c156758c5ec8ahrens free(name);
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) close(fd);
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_free(label);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
99653d4ee642c6528e88224f12409a5f23060994eschrock &nvroot) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
99653d4ee642c6528e88224f12409a5f23060994eschrock &spares, &nspares) == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock for (i = 0; i < nspares; i++) {
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_lookup_uint64(spares[i],
99653d4ee642c6528e88224f12409a5f23060994eschrock ZPOOL_CONFIG_GUID, &spareguid) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (spareguid == guid)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (B_TRUE);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock return (B_FALSE);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Go through and find any devices that are in use. We rely on libdiskmgt for
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the majority of this task.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crowstatic boolean_t
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crowis_device_in_use(nvlist_t *config, nvlist_t *nv, boolean_t force,
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling boolean_t replacing, boolean_t isspare)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t **child;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint_t c, children;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char *type, *path;
b327cd3f3b4dab4f29e7140159b1e01ed2ceef2aIgor Kozhukhov int ret = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock char buf[MAXPATHLEN];
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t wholedisk;
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow boolean_t anyinuse = B_FALSE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &child, &children) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock /*
99653d4ee642c6528e88224f12409a5f23060994eschrock * As a generic check, we look to see if this is a replace of a
99653d4ee642c6528e88224f12409a5f23060994eschrock * hot spare within the same pool. If so, we allow it
99653d4ee642c6528e88224f12409a5f23060994eschrock * regardless of what libdiskmgt or zpool_in_use() says.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling if (replacing) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
99653d4ee642c6528e88224f12409a5f23060994eschrock &wholedisk) == 0 && wholedisk)
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) snprintf(buf, sizeof (buf), "%ss0",
99653d4ee642c6528e88224f12409a5f23060994eschrock path);
99653d4ee642c6528e88224f12409a5f23060994eschrock else
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) strlcpy(buf, path, sizeof (buf));
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling
99653d4ee642c6528e88224f12409a5f23060994eschrock if (is_spare(config, buf))
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow return (B_FALSE);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (strcmp(type, VDEV_TYPE_DISK) == 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock ret = check_device(path, force, isspare);
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow else if (strcmp(type, VDEV_TYPE_FILE) == 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock ret = check_file(path, force, isspare);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow return (ret != 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < children; c++)
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow if (is_device_in_use(config, child[c], force, replacing,
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow B_FALSE))
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow anyinuse = B_TRUE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
99653d4ee642c6528e88224f12409a5f23060994eschrock &child, &children) == 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock for (c = 0; c < children; c++)
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow if (is_device_in_use(config, child[c], force, replacing,
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow B_TRUE))
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow anyinuse = B_TRUE;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan &child, &children) == 0)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan for (c = 0; c < children; c++)
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow if (is_device_in_use(config, child[c], force, replacing,
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow B_FALSE))
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow anyinuse = B_TRUE;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow return (anyinuse);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylorstatic const char *
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhalis_grouping(const char *type, int *mindev, int *maxdev)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (strncmp(type, "raidz", 5) == 0) {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal const char *p = type + 5;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal char *end;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal long nparity;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (*p == '\0') {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal nparity = 1;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal } else if (*p == '0') {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal return (NULL); /* no zero prefixes allowed */
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal } else {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal errno = 0;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal nparity = strtol(p, &end, 10);
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (errno != 0 || nparity < 1 || nparity >= 255 ||
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal *end != '\0')
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal return (NULL);
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (mindev != NULL)
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal *mindev = nparity + 1;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (maxdev != NULL)
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal *maxdev = 255;
99653d4ee642c6528e88224f12409a5f23060994eschrock return (VDEV_TYPE_RAIDZ);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (maxdev != NULL)
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal *maxdev = INT_MAX;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(type, "mirror") == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (mindev != NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock *mindev = 2;
99653d4ee642c6528e88224f12409a5f23060994eschrock return (VDEV_TYPE_MIRROR);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(type, "spare") == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock if (mindev != NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock *mindev = 1;
99653d4ee642c6528e88224f12409a5f23060994eschrock return (VDEV_TYPE_SPARE);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (strcmp(type, "log") == 0) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (mindev != NULL)
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin *mindev = 1;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (VDEV_TYPE_LOG);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (strcmp(type, "cache") == 0) {
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (mindev != NULL)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan *mindev = 1;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan return (VDEV_TYPE_L2CACHE);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan }
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
99653d4ee642c6528e88224f12409a5f23060994eschrock return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Construct a syntactically valid vdev specification,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and ensure that all devices and files exist and can be opened.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Note: we don't bother freeing anything in the error paths
fa9e4066f08beec538e775443c5be79dd423fcabahrens * because the program is just going to exit anyway.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensnvlist_t *
fa9e4066f08beec538e775443c5be79dd423fcabahrensconstruct_spec(int argc, char **argv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan nvlist_t *nvroot, *nv, **top, **spares, **l2cache;
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal int t, toplevels, mindev, maxdev, nspares, nlogs, nl2cache;
99653d4ee642c6528e88224f12409a5f23060994eschrock const char *type;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin uint64_t is_log;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin boolean_t seen_logs;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens top = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens toplevels = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock spares = NULL;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan l2cache = NULL;
99653d4ee642c6528e88224f12409a5f23060994eschrock nspares = 0;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin nlogs = 0;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan nl2cache = 0;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin is_log = B_FALSE;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin seen_logs = B_FALSE;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens while (argc > 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nv = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If it's a mirror or raidz, the subsequent arguments are
fa9e4066f08beec538e775443c5be79dd423fcabahrens * its leaves -- until we encounter the next mirror or raidz.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if ((type = is_grouping(argv[0], &mindev, &maxdev)) != NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t **child = NULL;
99653d4ee642c6528e88224f12409a5f23060994eschrock int c, children = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (strcmp(type, VDEV_TYPE_SPARE) == 0) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (spares != NULL) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin (void) fprintf(stderr,
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin gettext("invalid vdev "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "specification: 'spare' can be "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "specified only once\n"));
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (NULL);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin is_log = B_FALSE;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (strcmp(type, VDEV_TYPE_LOG) == 0) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (seen_logs) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin (void) fprintf(stderr,
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin gettext("invalid vdev "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "specification: 'log' can be "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "specified only once\n"));
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (NULL);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin seen_logs = B_TRUE;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin is_log = B_TRUE;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin argc--;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin argv++;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin /*
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * A log is not a real grouping device.
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin * We just set is_log and continue.
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin */
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin continue;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) {
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (l2cache != NULL) {
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan (void) fprintf(stderr,
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan gettext("invalid vdev "
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan "specification: 'cache' can be "
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan "specified only once\n"));
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan return (NULL);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan }
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan is_log = B_FALSE;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan }
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (is_log) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (strcmp(type, VDEV_TYPE_MIRROR) != 0) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin (void) fprintf(stderr,
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin gettext("invalid vdev "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "specification: unsupported 'log' "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "device: %s\n"), type);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (NULL);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin nlogs++;
99653d4ee642c6528e88224f12409a5f23060994eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 1; c < argc; c++) {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (is_grouping(argv[c], NULL, NULL) != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens break;
fa9e4066f08beec538e775443c5be79dd423fcabahrens children++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens child = realloc(child,
fa9e4066f08beec538e775443c5be79dd423fcabahrens children * sizeof (nvlist_t *));
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (child == NULL)
5ad820458efd0fdb914baff9c1447c22b819fa23nd zpool_no_memory();
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if ((nv = make_leaf_vdev(argv[c], B_FALSE))
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin == NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens child[children - 1] = nv;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if (children < mindev) {
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) fprintf(stderr, gettext("invalid vdev "
99653d4ee642c6528e88224f12409a5f23060994eschrock "specification: %s requires at least %d "
99653d4ee642c6528e88224f12409a5f23060994eschrock "devices\n"), argv[0], mindev);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal if (children > maxdev) {
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal (void) fprintf(stderr, gettext("invalid vdev "
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal "specification: %s supports no more than "
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal "%d devices\n"), argv[0], maxdev);
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal return (NULL);
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal }
f94275ce205810a201404c5f35f4cc96057022b1Adam Leventhal
99653d4ee642c6528e88224f12409a5f23060994eschrock argc -= c;
99653d4ee642c6528e88224f12409a5f23060994eschrock argv += c;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(type, VDEV_TYPE_SPARE) == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock spares = child;
99653d4ee642c6528e88224f12409a5f23060994eschrock nspares = children;
99653d4ee642c6528e88224f12409a5f23060994eschrock continue;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan } else if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) {
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan l2cache = child;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan nl2cache = children;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan continue;
99653d4ee642c6528e88224f12409a5f23060994eschrock } else {
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_alloc(&nv, NV_UNIQUE_NAME,
99653d4ee642c6528e88224f12409a5f23060994eschrock 0) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_add_string(nv, ZPOOL_CONFIG_TYPE,
99653d4ee642c6528e88224f12409a5f23060994eschrock type) == 0);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin verify(nvlist_add_uint64(nv,
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin ZPOOL_CONFIG_IS_LOG, is_log) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_add_uint64(nv,
99653d4ee642c6528e88224f12409a5f23060994eschrock ZPOOL_CONFIG_NPARITY,
99653d4ee642c6528e88224f12409a5f23060994eschrock mindev - 1) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_add_nvlist_array(nv,
99653d4ee642c6528e88224f12409a5f23060994eschrock ZPOOL_CONFIG_CHILDREN, child,
99653d4ee642c6528e88224f12409a5f23060994eschrock children) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock for (c = 0; c < children; c++)
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_free(child[c]);
99653d4ee642c6528e88224f12409a5f23060994eschrock free(child);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We have a device. Pass off to make_leaf_vdev() to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * construct the appropriate nvlist describing the vdev.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if ((nv = make_leaf_vdev(argv[0], is_log)) == NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (is_log)
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin nlogs++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens argc--;
fa9e4066f08beec538e775443c5be79dd423fcabahrens argv++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens toplevels++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens top = realloc(top, toplevels * sizeof (nvlist_t *));
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (top == NULL)
5ad820458efd0fdb914baff9c1447c22b819fa23nd zpool_no_memory();
fa9e4066f08beec538e775443c5be79dd423fcabahrens top[toplevels - 1] = nv;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (toplevels == 0 && nspares == 0 && nl2cache == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) fprintf(stderr, gettext("invalid vdev "
99653d4ee642c6528e88224f12409a5f23060994eschrock "specification: at least one toplevel vdev must be "
99653d4ee642c6528e88224f12409a5f23060994eschrock "specified\n"));
99653d4ee642c6528e88224f12409a5f23060994eschrock return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin if (seen_logs && nlogs == 0) {
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin (void) fprintf(stderr, gettext("invalid vdev specification: "
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin "log requires at least 1 device\n"));
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin return (NULL);
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin }
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Finally, create nvroot and add all top-level vdevs to it.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE,
fa9e4066f08beec538e775443c5be79dd423fcabahrens VDEV_TYPE_ROOT) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens top, toplevels) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nspares != 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
99653d4ee642c6528e88224f12409a5f23060994eschrock spares, nspares) == 0);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (nl2cache != 0)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan l2cache, nl2cache) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (t = 0; t < toplevels; t++)
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_free(top[t]);
99653d4ee642c6528e88224f12409a5f23060994eschrock for (t = 0; t < nspares; t++)
99653d4ee642c6528e88224f12409a5f23060994eschrock nvlist_free(spares[t]);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan for (t = 0; t < nl2cache; t++)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan nvlist_free(l2cache[t]);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (spares)
99653d4ee642c6528e88224f12409a5f23060994eschrock free(spares);
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan if (l2cache)
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan free(l2cache);
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(top);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (nvroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musantenvlist_t *
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musantesplit_mirror_vdev(zpool_handle_t *zhp, char *newname, nvlist_t *props,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante splitflags_t flags, int argc, char **argv)
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante{
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante nvlist_t *newroot = NULL, **child;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante uint_t c, children;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if (argc > 0) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if ((newroot = construct_spec(argc, argv)) == NULL) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante (void) fprintf(stderr, gettext("Unable to build a "
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante "pool from the specified devices\n"));
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante return (NULL);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if (!flags.dryrun && make_disks(zhp, newroot) != 0) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante nvlist_free(newroot);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante return (NULL);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante /* avoid any tricks in the spec */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante verify(nvlist_lookup_nvlist_array(newroot,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante ZPOOL_CONFIG_CHILDREN, &child, &children) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante for (c = 0; c < children; c++) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante char *path;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante const char *type;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante int min, max;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante verify(nvlist_lookup_string(child[c],
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante ZPOOL_CONFIG_PATH, &path) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if ((type = is_grouping(path, &min, &max)) != NULL) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante (void) fprintf(stderr, gettext("Cannot use "
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante "'%s' as a device for splitting\n"), type);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante nvlist_free(newroot);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante return (NULL);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if (zpool_vdev_split(zhp, newname, &newroot, props, flags) != 0) {
aab83bb83be7342f6cfccaed8d5fe0b2f404855dJosef 'Jeff' Sipek nvlist_free(newroot);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante return (NULL);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante }
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante return (newroot);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante}
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get and validate the contents of the given vdev specification. This ensures
fa9e4066f08beec538e775443c5be79dd423fcabahrens * that the nvlist returned is well-formed, that all the devices exist, and that
fa9e4066f08beec538e775443c5be79dd423fcabahrens * they are not currently in use by any other known consumer. The 'poolconfig'
fa9e4066f08beec538e775443c5be79dd423fcabahrens * parameter is the current configuration of the pool when adding devices
fa9e4066f08beec538e775443c5be79dd423fcabahrens * existing pool, and is used to perform additional checks, such as changing the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * replication level of the pool. It can be 'NULL' to indicate that this is a
fa9e4066f08beec538e775443c5be79dd423fcabahrens * new pool. The 'force' flag controls whether devices should be forcefully
fa9e4066f08beec538e775443c5be79dd423fcabahrens * added, even if they appear in use.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensnvlist_t *
8488aeb5df27784d479c16cde06a9e25cd9a1152taylormake_root_vdev(zpool_handle_t *zhp, int force, int check_rep,
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling boolean_t replacing, boolean_t dryrun, int argc, char **argv)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *newroot;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor nvlist_t *poolconfig = NULL;
fa9e4066f08beec538e775443c5be79dd423fcabahrens is_force = force;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Construct the vdev specification. If this is successful, we know
fa9e4066f08beec538e775443c5be79dd423fcabahrens * that we have a valid specification, and that all devices can be
fa9e4066f08beec538e775443c5be79dd423fcabahrens * opened.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((newroot = construct_spec(argc, argv)) == NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (zhp && ((poolconfig = zpool_get_config(zhp, NULL)) == NULL))
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor return (NULL);
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Validate each device to make sure that its not shared with another
fa9e4066f08beec538e775443c5be79dd423fcabahrens * subsystem. We do this even if 'force' is set, because there are some
fa9e4066f08beec538e775443c5be79dd423fcabahrens * uses (such as a dedicated dump device) that even '-f' cannot
fa9e4066f08beec538e775443c5be79dd423fcabahrens * override.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
75fbdf9b9f63da7e23a9814982b78a782559c086Basil Crow if (is_device_in_use(poolconfig, newroot, force, replacing, B_FALSE)) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_free(newroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Check the replication level of the given vdevs and report any errors
fa9e4066f08beec538e775443c5be79dd423fcabahrens * found. We include the existing pool spec, if any, as we need to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * catch changes against the existing replication level.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (check_rep && check_replication(poolconfig, newroot) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_free(newroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Run through the vdev specification and label any whole disks found.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
705040ed336e23b47ac6a3421d1f23ab5e86871bEric Taylor if (!dryrun && make_disks(zhp, newroot) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_free(newroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (newroot);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}