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<?php
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/*
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* gmirror.inc
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2020 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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global $balance_methods;
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$balance_methods = array("load", "prefer", "round-robin", "split");
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/* Create a status array for each mirror and its disk components. */
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function gmirror_get_status() {
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$status = "";
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exec("/sbin/gmirror status -s", $status);
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$mirrors = array();
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/* Empty output = no mirrors found */
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if (count($status) > 0) {
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/* Loop through gmirror status output. */
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foreach ($status as $line) {
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/* Split the line by whitespace */
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$all = preg_split("/[\s\t]+/", trim($line), 3);
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if (count($all) == 3) {
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/* If there are three items on a line, it is mirror name, status, and component */
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$currentmirror = basename($all[0]);
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$mirrors[$currentmirror]['name'] = basename($all[0]);
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$mirrors[$currentmirror]['status'] = $all[1];
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if (!is_array($mirrors[$currentmirror]['components'])) {
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$mirrors[$currentmirror]['components'] = array();
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}
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$mirrors[$currentmirror]['components'][] = $all[2];
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}
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}
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}
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/* Return an hash of mirrors and components */
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return $mirrors;
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}
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/* Get only status word for a single mirror. */
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function gmirror_get_status_single($mirror) {
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$status = "";
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$mirror_status = gmirror_get_status();
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return $mirror_status[$mirror]['status'];
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}
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/* Generate an HTML formatted status for mirrors and disks in a small format for the widget */
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function gmirror_html_status() {
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$mirrors = gmirror_get_status();
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$output = "";
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if (count($mirrors) < 1) {
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print_info_box(gettext("No mirrors found."), 'warning', false);
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return;
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}
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?>
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<table class="table table-striped table-hover">
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<thead>
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<tr>
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<th><?=gettext("Name")?></td>
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<th><?=gettext("Status")?></td>
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<th><?=gettext("Component")?></td>
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</tr>
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</thead>
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<tbody>
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<?php foreach ($mirrors as $mirror => $name): ?>
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<tr>
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<td rowspan="<?=count($name["components"])?>"><?=$name['name']?></td>
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<td rowspan="<?=count($name["components"])?>"><?=$name['status']?></td>
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<td><?=$name['components'][0]?></td>
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</tr>
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<?php if (count($name["components"]) > 1): ?>
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<?php foreach (array_slice($name["components"], 1) as $component): ?>
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<tr>
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<td><?=$component?></td>
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</tr>
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<?php endforeach; ?>
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<?php endif; ?>
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<?php endforeach; ?>
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</tbody>
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</table>
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<?php
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}
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/* List all disks in the system (potential gmirror targets) */
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function gmirror_get_disks() {
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$disklist = "";
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/* Get a list of disks in a scriptable way, exclude optical drives */
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exec("/sbin/geom disk status -s | /usr/bin/grep -v '[[:blank:]]*cd[[:digit:]]*' | /usr/bin/awk '{print $1;}'", $disklist);
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return $disklist;
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}
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/* List all potential gmirror consumers */
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function gmirror_get_unused_consumers() {
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$consumerlist = "";
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$disklist = gmirror_get_disks();
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/* Get a list of consumers, exclude existing mirrors and diskid entries */
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exec("/sbin/geom part status -s | /usr/bin/egrep -v '(mirror|diskid)' | /usr/bin/awk '{print $1, $3;}'", $consumerlist);
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$all_consumers = array();
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foreach ($consumerlist as $cl) {
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$parts = explode(" ", $cl);
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foreach ($parts as $part) {
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$all_consumers[] = $part;
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}
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}
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foreach ($disklist as $d) {
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if (!is_consumer_used($d) && !in_array($d, $all_consumers)) {
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$all_consumers[] = $d;
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}
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}
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return $all_consumers;
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}
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/* List all existing geom mirrors */
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function gmirror_get_mirrors() {
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$mirrorlist = "";
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exec("/sbin/gmirror list | /usr/bin/grep '^Geom name:' | /usr/bin/awk '{print $3;}'", $mirrorlist);
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return $mirrorlist;
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}
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/* List all consumers for a given mirror */
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function gmirror_get_consumers_in_mirror($mirror) {
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if (!is_valid_mirror($mirror)) {
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return array();
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}
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$consumers = array();
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exec("/sbin/gmirror status -s " . escapeshellarg($mirror) . " | /usr/bin/awk '{print $3;}'", $consumers);
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return $consumers;
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}
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/* Test if a given consumer is a member of an existing mirror */
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function is_consumer_in_mirror($consumer, $mirror) {
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if (!is_valid_consumer($consumer) || !is_valid_mirror($mirror)) {
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return false;
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}
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$mirrorconsumers = gmirror_get_consumers_in_mirror($mirror);
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return in_array(basename($consumer), $mirrorconsumers);
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}
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/* Test if a mirror exists */
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function is_valid_mirror($mirror) {
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$mirrors = gmirror_get_mirrors();
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return in_array($mirror, $mirrors);
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}
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/* Test if a disk is valid/exists */
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function is_valid_disk($disk) {
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$adisks = gmirror_get_disks();
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return in_array(basename($disk), $adisks);
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}
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/* Test if a consumer is valid and in use in a mirror */
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function is_consumer_used($consumer) {
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$found = false;
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$mirrors = gmirror_get_mirrors();
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foreach ($mirrors as $mirror) {
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$consumers = gmirror_get_consumers_in_mirror($mirror);
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if (in_array($consumer, $consumers)) {
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return true;
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}
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}
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return false;
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}
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/* Test if a consumer is valid and not in use */
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function is_consumer_unused($consumer) {
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$consumers = gmirror_get_unused_consumers();
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return in_array($consumer, $consumers);
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}
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/* Test if a consumer is valid (either a disk or partition) */
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function is_valid_consumer($consumer) {
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return (is_consumer_unused($consumer) || is_consumer_used($consumer));
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}
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/* Remove all disconnected drives from a mirror */
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function gmirror_forget_disconnected($mirror) {
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if (!is_valid_mirror($mirror)) {
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return false;
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}
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return mwexec("/sbin/gmirror forget " . escapeshellarg($mirror));
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}
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/* Insert another consumer into a mirror */
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function gmirror_insert_consumer($mirror, $consumer) {
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if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror insert " . escapeshellarg($mirror) . " " . escapeshellarg($consumer));
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}
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/* Remove consumer from a mirror and clear its metadata */
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function gmirror_remove_consumer($mirror, $consumer) {
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if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror remove " . escapeshellarg($mirror) . " " . escapeshellarg($consumer));
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}
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/* Wipe geom info from drive (if mirror is not running) */
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function gmirror_clear_consumer($consumer) {
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if (!is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror clear " . escapeshellarg($consumer));
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}
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/* Find the balance method used by a given mirror */
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function gmirror_get_mirror_balance($mirror) {
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if (!is_valid_mirror($mirror)) {
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return false;
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}
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$balancemethod = "";
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exec("/sbin/gmirror list " . escapeshellarg($mirror) . " | /usr/bin/grep '^Balance:' | /usr/bin/awk '{print $2;}'", $balancemethod);
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return $balancemethod[0];
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}
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/* Change balance algorithm of the mirror */
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function gmirror_configure_balance($mirror, $balancemethod) {
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global $balance_methods;
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if (!is_valid_mirror($mirror) || !in_array($balancemethod, $balance_methods)) {
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return false;
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}
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return mwexec("/sbin/gmirror configure -b " . escapeshellarg($balancemethod) . " " . escapeshellarg($mirror));
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}
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/* Force a mirror member to rebuild */
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function gmirror_force_rebuild($mirror, $consumer) {
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if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror rebuild " . escapeshellarg($mirror) . " " . escapeshellarg($consumer));
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}
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/* Show all metadata on the physical consumer */
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function gmirror_get_consumer_metadata($consumer) {
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if (!is_valid_consumer($consumer)) {
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return array();
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}
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$output = array();
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exec("/sbin/gmirror dump " . escapeshellarg($consumer), $output);
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return array_map('trim', $output);
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}
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/* Test if a consumer has metadata, indicating it is a member of a mirror (active or inactive) */
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function gmirror_consumer_has_metadata($consumer) {
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return (count(gmirror_get_consumer_metadata($consumer)) > 0);
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}
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/* Find the mirror to which this consumer belongs */
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function gmirror_get_consumer_metadata_mirror($consumer) {
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if (!is_valid_consumer($consumer)) {
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return array();
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}
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$metadata = gmirror_get_consumer_metadata($consumer);
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foreach ($metadata as $line) {
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if (substr($line, 0, 5) == "name:") {
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list ($key, $value) = explode(":", $line, 2);
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return trim($value);
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}
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}
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}
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/* Deactivate consumer, removing it from service in the mirror, but leave metadata intact */
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function gmirror_deactivate_consumer($mirror, $consumer) {
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if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror deactivate " . escapeshellarg($mirror) . " " . escapeshellarg($consumer));
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}
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/* Reactivate a deactivated consumer */
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function gmirror_activate_consumer($mirror, $consumer) {
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if (!is_valid_mirror($mirror) || !is_valid_consumer($consumer)) {
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return false;
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}
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return mwexec("/sbin/gmirror activate " . escapeshellarg($mirror) . " " . escapeshellarg($consumer));
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}
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/* Find the size of the given mirror */
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function gmirror_get_mirror_size($mirror) {
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if (!is_valid_mirror($mirror)) {
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return false;
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}
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$mirrorsize = "";
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exec("/sbin/gmirror list " . escapeshellarg($mirror) . " | /usr/bin/grep 'Mediasize:' | /usr/bin/head -n 1 | /usr/bin/awk '{print $2;}'", $mirrorsize);
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return $mirrorsize[0];
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}
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/* Return a list of all potential consumers on a disk with sizes. The geom part
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list output is a little odd, we can't get the output for just the disk, if the disk contains
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slices those get output also. */
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function gmirror_get_all_unused_consumer_sizes_on_disk($disk) {
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if (!is_valid_disk($disk) || !is_consumer_unused($disk)) {
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return array();
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}
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$output = array();
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exec("/sbin/geom part list " . escapeshellarg($disk) . " | /usr/bin/egrep '(Name:|Mediasize:)' | /usr/bin/cut -c4- | /usr/bin/sed -l -e 'N;s/\\nMediasize://;P;D;' | /usr/bin/cut -c7-", $output);
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if (empty($output)) {
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exec("/sbin/geom disk list " . escapeshellarg($disk) . " | /usr/bin/egrep '(Name:|Mediasize:)' | /usr/bin/cut -c4- | /usr/bin/sed -l -e 'N;s/\\nMediasize://;P;D;' | /usr/bin/cut -c7-", $output);
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}
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$disk_contents = array();
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foreach ($output as $line) {
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list($name, $size, $humansize) = explode(" ", $line, 3);
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$consumer = array();
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$consumer['name'] = $name;
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$consumer['size'] = $size;
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$consumer['humansize'] = $humansize;
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$disk_contents[] = $consumer;
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}
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return $disk_contents;
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}
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/* Get only the size for one specific potential consumer. */
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function gmirror_get_unused_consumer_size($consumer) {
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$consumersizes = gmirror_get_all_unused_consumer_sizes_on_disk($consumer);
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foreach ($consumersizes as $csize) {
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if ($csize['name'] == $consumer) {
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return $csize['size'];
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}
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}
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return -1;
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}
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?>
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