From 9cd1b36593e73e49bb1b1e16b613c9cb24034898 Mon Sep 17 00:00:00 2001
From: Tom Mortensen <tomm@lime-technology.com>
Date: Fri, 18 Jul 2025 17:28:06 -0700
Subject: [PATCH] feat: ext2/3/4 support

---
 emhttp/plugins/dynamix/DeviceInfo.page        | 116 +++++++++++++-
 emhttp/plugins/dynamix/DiskSettings.page      |   2 +
 .../dynamix/include/FileSystemStatus.php      |   7 +-
 emhttp/plugins/dynamix/nchan/device_list      |  14 +-
 emhttp/plugins/dynamix/scripts/ext_check      |  96 ++++++++++++
 emhttp/plugins/dynamix/scripts/xfs_check      | 146 +++++++++---------
 6 files changed, 293 insertions(+), 88 deletions(-)
 create mode 100755 emhttp/plugins/dynamix/scripts/ext_check

diff --git a/emhttp/plugins/dynamix/DeviceInfo.page b/emhttp/plugins/dynamix/DeviceInfo.page
index fe720ff3c..6c1290234 100644
--- a/emhttp/plugins/dynamix/DeviceInfo.page
+++ b/emhttp/plugins/dynamix/DeviceInfo.page
@@ -272,6 +272,12 @@ function selectDiskFsProfileXFS() {
   $('#diskFsProfile').val('');
   setDiskFsWidth(1);
 }
+function selectDiskFsProfileEXT() {
+  $('#diskFsProfile').empty();
+  $('#diskFsProfile').append($('<option>', {value: '', text:''}));
+  $('#diskFsProfile').val('');
+  setDiskFsWidth(1);
+}
 function selectDiskFsProfileBTRFS(slots,init) {
   $('#diskFsProfile').empty();
   $('#diskFsProfile').append($('<option>', {value: 'single', text:_('single')}));
@@ -399,9 +405,11 @@ function selectDiskFsProfile(init) {
     selectDiskFsProfileZFS(slots,init,subpool);
   } else if (fsType.indexOf('xfs') != -1) {
     selectDiskFsProfileXFS();
+  } else if (fsType.indexOf('ext') != -1) {
+    selectDiskFsProfileEXT();
   }
 
-  if (subpool != '' || fsType == 'auto' || fsType.indexOf('xfs') != -1) {
+  if (subpool != '' || fsType == 'auto' || fsType.indexOf('xfs') != -1 || fsType.indexOf('ext') != -1) {
     $('#compression').hide(t);
     $('#diskCompression').prop('disabled',true);
   } else {
@@ -600,6 +608,18 @@ function xfsCheck(path) {
   });
   return false;
 }
+function extCheck(path) {
+  $.post('/webGui/include/FileSystemStatus.php',{cmd:'ext-check',path:path},function(data) {
+    $('#ext-check').text(data);
+    if (data.slice(-1)!='\0') {
+      setTimeout(function(){extCheck(path);},1000);
+    } else {
+      $.removeCookie('ext-check-<?=$tag?>');
+      refresh();
+    }
+  });
+  return false;
+}
 function updateMode(form,mode) {
   $(form).find('input[name="#arg[3]"]').val(mode);
 }
@@ -804,20 +824,29 @@ _(Spin down delay)_:
 _(File system status)_:
 : <?=_(_var($disk, 'fsStatus'))?>&nbsp;
 
+<?if (_var($var, 'fsState') == "Started"):?>
+_(File system type)_:
+: <?=_(_var($disk, 'fsType'))?>&nbsp;
+<?else:?>
 _(File system type)_:
 : <select id="diskFsType" name="diskFsType.<?=_var($disk, 'idx')?>" onchange="selectDiskFsProfile(false)"  <?=disabled_if($fsTypeImmutable)?>>
   <?=mk_option(_var($disk, 'fsType'), "auto", _('auto'))?>
   <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "xfs", _('xfs'))?>
   <?=mk_option(_var($disk, 'fsType'), "zfs", _('zfs'))?>
   <?=mk_option(_var($disk, 'fsType'), "btrfs", _('btrfs'))?>
+  <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "ext4", _('ext4'))?>
+  <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "ext3", _('ext3'), "disabled")?>
+  <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "ext2", _('ext2'), "disabled")?>
   <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "reiserfs", _('reiserfs'), "disabled")?>
   <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "luks:xfs", _('xfs')." - "._('encrypted'))?>
   <?=mk_option(_var($disk, 'fsType'), "luks:zfs", _('zfs')." - "._('encrypted'))?>
   <?=mk_option(_var($disk, 'fsType'), "luks:btrfs", _('btrfs')." - "._('encrypted'))?>
+  <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "luks:ext4", _('ext4')." - "._('encrypted'))?>
   <?if (_var($disk,'slots',1) == 1) echo mk_option(_var($disk,'fsType'), "luks:reiserfs", _('reiserfs')." - "._('encrypted'), "disabled")?>
   </select>
   <span id="reiserfs" class="warning"<?if (!fsType('reiserfs')):?> style="display:none"<?endif;?>><i class="fa fa-warning"></i>&nbsp;_(ReiserFS is deprecated, please use another file system)_!</span>
 <?endif;?>
+<?endif;?>
 
 <?if (diskType('Data') || isPool($tag)):?>
 <div markdown="1" id="profile">
@@ -1501,6 +1530,90 @@ _(xfs_repair status)_:
 <?endif;?>
 <?else:?>
 
+&nbsp;
+: <span class="inline-block">
+    <input type="submit" value="_(Check)_" disabled>
+    <span>**_(Check)_** _(is only available when array is Started in **Maintenance** mode)_.
+  </span>
+
+<?endif;?>
+</form>
+<?endif;?>
+<?if (fsType('ext')):?>
+<div class="title nocontrol">
+  <span class="left">
+    <i class="title fa fa-shield"></i>_(Check Filesystem Status)_
+  </span>
+</div>
+<form markdown="1" method="POST" action="/update.php" target="progressFrame" onsubmit="prepareFS(this,'ext-check-<?=$tag?>','/dev/<?=_var($disk, 'deviceSb')?> <?=_var($disk, 'id')?>')">
+<?if (maintenance_mode()):?>
+<?exec("$docroot/webGui/scripts/ext_check status /dev/"._var($disk,'deviceSb')." "._var($disk,'id'), $check_status, $retval)?>
+
+_(check status)_:
+: <pre id='ext-check'><?=implode("\n", $check_status)?></pre>
+
+<?if ($retval == 0 || $retval == 8):?>
+<input type="hidden" name="#command" value="/webGui/scripts/ext_check">
+<input type="hidden" name="#arg[1]" value="start">
+<input type="hidden" name="#arg[2]" value="/dev/<?=_var($disk, 'deviceSb')?>">
+<input type="hidden" name="#arg[3]" value="<?=_var($disk, 'id')?>">
+<input type="hidden" name="#arg[4]" value="-v -p">
+
+&nbsp;
+: <span class="buttons-spaced">
+    <input type="submit" value="_(Check)_">
+    <?if ($retval == 0): ?> _(No file system corruption detected)_.<?endif; ?>
+  </span>
+
+:info_ext_check_help:
+
+<?elseif ($retval == 1):?>
+<input type="hidden" name="#command" value="/webGui/scripts/ext_check">
+<input type="hidden" name="#arg[1]" value="start">
+<input type="hidden" name="#arg[2]" value="/dev/<?=_var($disk, 'deviceSb')?>">
+<input type="hidden" name="#arg[3]" value="<?=_var($disk, 'id')?>">
+<input type="hidden" name="#arg[4]" value="-v -f -y">
+
+&nbsp;
+: <span class="buttons-spaced">
+    <input type="submit" value="_(Fix)_">
+    <span style="color: red;">_(File system corruption detected)_.</span>
+  </span>
+
+:info_ext_check_help:
+
+<?elseif ($retval == 4):?>
+<input type="hidden" name="#command" value="/webGui/scripts/ext_check">
+<input type="hidden" name="#arg[1]" value="start">
+<input type="hidden" name="#arg[2]" value="/dev/<?=_var($disk, 'deviceSb')?>">
+<input type="hidden" name="#arg[3]" value="<?=_var($disk, 'id')?>">
+<input type="hidden" name="#arg[4]" value="-v -n">
+
+&nbsp;
+: <span class="buttons-spaced">
+    <input type="submit" value="_(Check)_">
+    _(File system corruption fixed)_
+  </span>
+
+:info_ext_check_help:
+
+<?elseif ($retval == 9):?>
+<input type="hidden" name="#command" value="/webGui/scripts/ext_check">
+<input type="hidden" name="#arg[1]" value="cancel">
+<input type="hidden" name="#arg[2]" value="/dev/<?=_var($disk, 'deviceSb')?>">
+<input type="hidden" name="#arg[3]" value="<?=_var($disk, 'id')?>">
+
+&nbsp;
+: <span class="buttons-spaced">
+    <input type="submit" value="_(Cancel)_">
+    *_(Running)_*
+  </span>
+
+:info_ext_cancel_help:
+
+<?endif;?>
+<?else:?>
+
 &nbsp;
 : <span class="inline-block">
     <input type="submit" value="_(Check)_" disabled>
@@ -1670,6 +1783,7 @@ $(function() {
   if ($.cookie('zfs-resilver-<?=$tag?>')) status = zfsResilver($.cookie('zfs-resilver-<?=$tag?>'));
   if ($.cookie('rfs-check-<?=$tag?>')) status = rfsCheck($.cookie('rfs-check-<?=$tag?>'));
   if ($.cookie('xfs-check-<?=$tag?>')) status = xfsCheck($.cookie('xfs-check-<?=$tag?>'));
+  if ($.cookie('ext-check-<?=$tag?>')) status = extCheck($.cookie('ext-check-<?=$tag?>'));
   if (status) {
     $.post('/webGui/include/FileSystemStatus.php',{cmd:'status',path:'<?=$tag?>'},function(a){
       var action = a.split(',');
diff --git a/emhttp/plugins/dynamix/DiskSettings.page b/emhttp/plugins/dynamix/DiskSettings.page
index 2f1e10bac..2d0b11fad 100644
--- a/emhttp/plugins/dynamix/DiskSettings.page
+++ b/emhttp/plugins/dynamix/DiskSettings.page
@@ -188,10 +188,12 @@ _(Default file system for Array disks)_:
   <?=mk_option($var['defaultFsType'], "xfs", _('xfs'));?>
   <?=mk_option($var['defaultFsType'], "zfs", _('zfs'));?>
   <?=mk_option($var['defaultFsType'], "btrfs", _('btrfs'));?>
+  <?=mk_option($var['defaultFsType'], "ext4", _('ext4'));?>
   <?=mk_option($var['defaultFsType'], "reiserfs", _('reiserfs'), "disabled");?>
   <?=mk_option($var['defaultFsType'], "luks:xfs", _('xfs')." - "._('encrypted'));?>
   <?=mk_option($var['defaultFsType'], "luks:zfs", _('zfs')." - "._('encrypted'));?>
   <?=mk_option($var['defaultFsType'], "luks:btrfs", _('btrfs')." - "._('encrypted'));?>
+  <?=mk_option($var['defaultFsType'], "luks:ext4", _('ext4')." - "._('encrypted'));?>
   <?=mk_option($var['defaultFsType'], "luks:reiserfs", _('reiserfs')." - "._('encrypted'), "disabled");?>
   </select>
 
diff --git a/emhttp/plugins/dynamix/include/FileSystemStatus.php b/emhttp/plugins/dynamix/include/FileSystemStatus.php
index 736dc2685..d135cc11a 100644
--- a/emhttp/plugins/dynamix/include/FileSystemStatus.php
+++ b/emhttp/plugins/dynamix/include/FileSystemStatus.php
@@ -40,9 +40,10 @@ default:
   $file = "/var/lib/$dir/check.status.$id";
   if (file_exists($file)) {
     switch ($cmd) {
-      case 'btrfs-check': $pgrep = 'pgrep --ns $$ -f '."'/sbin/btrfs check .*$dev'"; break;
-      case 'rfs-check': $pgrep = 'pgrep --ns $$  -f '."'/sbin/reiserfsck $dev'"; break;
-      case 'xfs-check': $pgrep = 'pgrep --ns $$ -f '."'/sbin/xfs_repair.*$dev'"; break;
+      case 'btrfs-check': $pgrep = 'pgrep --ns $$ -f '."'/scripts/btrfs check .*$dev'"; break;
+      case 'rfs-check': $pgrep = 'pgrep --ns $$  -f '."'/scripts/reiserfsck $dev'"; break;
+      case 'xfs-check': $pgrep = 'pgrep --ns $$ -f '."'/scripts/xfs_repair.*$dev'"; break;
+      case 'ext-check': $pgrep = 'pgrep --ns $$ -f '."'/scripts/ext_check.*$dev'"; break;
     }
     echo file_get_contents($file);
     if (!exec($pgrep)) echo "\0";
diff --git a/emhttp/plugins/dynamix/nchan/device_list b/emhttp/plugins/dynamix/nchan/device_list
index 70731800b..b238243e2 100755
--- a/emhttp/plugins/dynamix/nchan/device_list
+++ b/emhttp/plugins/dynamix/nchan/device_list
@@ -378,19 +378,15 @@ function array_slots() {
 
 function cache_slots($off,$pool,$min,$slots) {
   global $var, $disks;
-//  $off  = $off && $min ? ' disabled' : '';
-  $off = _var($disks[$pool],'fsType','auto')!='auto' && empty(_var($disks[$pool],'uuid')) ? ' disabled' : '';
-  $max  = _var($var,'MAX_CACHESZ');
+  $off  = $off && $min ? ' disabled' : '';
+  $fsType = _var($disks[$pool],'fsType','auto');
+  $max  = ($fsType=='auto' || str_contains($fsType,'btrfs') || str_contains($fsType,'zfs')) ? _var($var,'MAX_CACHESZ') : 1;
   $echo = [];
   $echo[] = "<form method='POST' action='/update.htm' target='progressFrame'>";
   $echo[] = "<input type='hidden' name='csrf_token' value='"._var($var,'csrf_token')."'>";
   $echo[] = "<input type='hidden' name='changeSlots' value='apply'>";
   $echo[] = "<input type='hidden' name='poolName' value='$pool'>";
   $echo[] = "<select class='slots-amount' name='poolSlots' onChange='devices.start();this.form.submit()'{$off}>";
-//  if (_var($disks[$pool],'state')=='NEW_ARRAY' || str_contains(_var($diks[$pool],'state'),'NO_DEVICES')) {
-//    $option = _('none');
-//    $echo[] = "<option value='0'>$option</option>";
-//  }
   for ($n=$min; $n<=$max; $n++) {
     $selected = ($n==$slots) ? ' selected' : '';
     $echo[] = "<option value='$n'{$selected}>$n</option>";
@@ -508,7 +504,7 @@ while (true) {
     $print = array_filter(array_column($Cache,'name'),function($name) use ($pools,$root) {return in_array($name,$pools) && strncmp($root,$name,strlen($root))==0;});
     $print = end($print);
     if (_var($var,'fsState')=='Stopped') {
-      $log = @parse_ini_file($pool_log) ?: [];
+      $log = @parse_ini_file($pool_log) ?: []; // used to detect slot changes
       $off = false;
       foreach ($Cache as $disk) if (prefix(_var($disk,'name'))==$pool) {
         $echo[$a][] = array_offline($disk,$pool);
@@ -518,7 +514,7 @@ while (true) {
         if (isset($log[$named])) $off |= ($log[$named] != _var($disk,'id')); elseif ($named) $log[$named] = _var($disk,'id');
       }
       $data = []; foreach ($log as $key => $value) $data[] = "$key=\"$value\"";
-      $off &= !empty(_var($Cache[$pool],'uuid'));
+      $off &= !empty(_var($Cache[$root],'uuid'));
       file_put_contents($pool_log,implode("\n",$data));
       $echo[$a][] = "<tr class='tr_last'><td>"._('Slots').":</td><td colspan='8'><span class='slots'><span class='slots-left'>".cache_slots($off,$pool,_var($Cache[$pool],'devicesSb'),_var($Cache[$pool],'slots',0))."</span>";
       $zfsPool = strstr(_var($Cache[$pool],'fsType'),'zfs') && !isSubpool($pool);
diff --git a/emhttp/plugins/dynamix/scripts/ext_check b/emhttp/plugins/dynamix/scripts/ext_check
new file mode 100755
index 000000000..8e4a85064
--- /dev/null
+++ b/emhttp/plugins/dynamix/scripts/ext_check
@@ -0,0 +1,96 @@
+#!/bin/bash
+# ext_check start <dev> <id> <options>
+# ext_check status <dev> <id>
+# ext_check cancel <dev> <id>
+
+# Exit codes:
+# 0 - No corruption detected or process not found.
+# 1 - Corruption detected.
+# 4 - File system corruption fixed.
+# 8 - No check has been run yet.
+# 9 - Process is still running.
+
+# Using /var/lib because that's where btrfs puts status
+mkdir -p /var/lib/ext
+
+case "$1" in
+'start')
+    # Start the e2fsck process in the background and log output
+    rm -f /var/lib/ext/check.status.$3
+    {
+        /sbin/e2fsck $4 $2 &> /var/lib/ext/check.status.$3
+        echo $? > /var/lib/ext/check.status.$3.exit
+    } > /dev/null 2>&1 &
+    echo $! > /var/lib/ext/check.pid.$3
+    exit 0
+    ;;
+
+'status')
+    # Check if the process is still running
+    if [ -f /var/lib/ext/check.pid.$3 ]; then
+        pid=$(cat /var/lib/ext/check.pid.$3)
+        if kill -0 $pid 2>/dev/null; then
+            # Process is running, return status and exit code 9
+            cat /var/lib/ext/check.status.$3
+            exit 9
+        else
+            # Process is not running, read the exit status if available
+            if [ -f /var/lib/ext/check.status.$3.exit ]; then
+                exit_status=$(cat /var/lib/ext/check.status.$3.exit)
+                cat /var/lib/ext/check.status.$3
+                rm -f /var/lib/ext/check.pid.$3
+    		(( exit_status & 1 )) && exit 4
+    		(( exit_status & 4 )) && exit 1
+		exit 0
+            else
+                # Exit status file does not exist, but return status file if available
+                if [ -f /var/lib/ext/check.status.$3 ]; then
+                    cat /var/lib/ext/check.status.$3
+                fi
+                exit 8
+            fi
+        fi
+    else
+        # No PID file found, check for existing status
+        if [ -f /var/lib/ext/check.status.$3 ]; then
+            cat /var/lib/ext/check.status.$3
+            # If no exit status file, assume process completed successfully
+            if [ -f /var/lib/ext/check.status.$3.exit ]; then
+                exit_status=$(cat /var/lib/ext/check.status.$3.exit)
+    		(( exit_status & 1 )) && exit 4
+    		(( exit_status & 4 )) && exit 1
+                exit 0
+            else
+                exit 8
+            fi
+        else
+            # No status file found
+            echo "Not available"
+            exit 8
+        fi
+    fi
+    ;;
+
+'cancel')
+    # Cancel the e2fsck process
+    if [ -f /var/lib/ext/check.pid.$3 ]; then
+        pid=$(cat /var/lib/ext/check.pid.$3)
+        kill $pid
+        while kill -0 $pid 2>/dev/null; do
+            sleep 1
+        done
+        echo -e "\nCancelled" >> /var/lib/ext/check.status.$3
+        rm -f /var/lib/ext/check.pid.$3
+    else
+        echo "No process to cancel"
+    fi
+
+    exit 0
+    ;;
+
+*)
+    # Handle invalid commands
+    echo "Invalid command"
+    exit 0
+    ;;
+esac
diff --git a/emhttp/plugins/dynamix/scripts/xfs_check b/emhttp/plugins/dynamix/scripts/xfs_check
index 990a15f41..65f32ba2c 100755
--- a/emhttp/plugins/dynamix/scripts/xfs_check
+++ b/emhttp/plugins/dynamix/scripts/xfs_check
@@ -17,87 +17,83 @@ mkdir -p /var/lib/xfs
 
 case "$1" in
 'start')
-	# Start the xfs_repair process in the background and log output
-	/sbin/xfs_repair $4 $2 &> /var/lib/xfs/check.status.$3 &
-	pid=$!
-	echo $pid > /var/lib/xfs/check.pid.$3
-
-    # Wait for xfs_repair to complete synchronously
-    wait "$pid"
-
-    # Capture the exit code of xfs_repair
-	echo $? > /var/lib/xfs/check.status.$3.exit
-
-	exit 0
+    # Start the xfs_repair process in the background and log output
+    rm -f /var/lib/xfs/check.status.$3
+    {
+        /sbin/xfs_repair $4 $2 &> /var/lib/xfs/check.status.$3
+        echo $? > /var/lib/xfs/check.status.$3.exit
+    } > /dev/null 2>&1 &
+    echo $! > /var/lib/xfs/check.pid.$3
+    exit 0
 ;;
 'status')
-	# Check if the process is still running
-	if [ -f /var/lib/xfs/check.pid.$3 ]; then
-		pid=$(cat /var/lib/xfs/check.pid.$3)
-		if kill -0 $pid 2>/dev/null; then
-			# Process is running, return status and exit code 9
-			cat /var/lib/xfs/check.status.$3
-			exit 9
-		else
-			# Process is not running, read the exit status if available
-			if [ -f /var/lib/xfs/check.status.$3.exit ]; then
-				exit_status=$(cat /var/lib/xfs/check.status.$3.exit)
-				cat /var/lib/xfs/check.status.$3
-				rm -f /var/lib/xfs/check.pid.$3
-				if [[ $exit_status -eq 0 || $exit_status -eq 1 || $exit_status -eq 2 || $exit_status -eq 4 ]]; then
-					exit $exit_status
-				else
-					exit 0
-				fi
-			else
-				# Exit status file does not exist, but return status file if available
-				if [ -f /var/lib/xfs/check.status.$3 ]; then
-					cat /var/lib/xfs/check.status.$3
-				fi
-				exit 8
-			fi
-		fi
-	else
-		# No PID file found, check for existing status
-		if [ -f /var/lib/xfs/check.status.$3 ]; then
-			cat /var/lib/xfs/check.status.$3
-			# If no exit status file, assume process completed successfully
-			if [ -f /var/lib/xfs/check.status.$3.exit ]; then
-				exit_status=$(cat /var/lib/xfs/check.status.$3.exit)
-				if [[ $exit_status -eq 0 || $exit_status -eq 1 || $exit_status -eq 2 || $exit_status -eq 4 ]]; then
-					exit $exit_status
-				else
-					exit 0
-				fi
-			else
-				exit 8
-			fi
-		else
-			# No status file found
-			echo "Not available"
-			exit 8
-		fi
-	fi
+    # Check if the process is still running
+    if [ -f /var/lib/xfs/check.pid.$3 ]; then
+        pid=$(cat /var/lib/xfs/check.pid.$3)
+        if kill -0 $pid 2>/dev/null; then
+            # Process is running, return status and exit code 9
+            cat /var/lib/xfs/check.status.$3
+            exit 9
+        else
+            # Process is not running, read the exit status if available
+            if [ -f /var/lib/xfs/check.status.$3.exit ]; then
+                exit_status=$(cat /var/lib/xfs/check.status.$3.exit)
+                cat /var/lib/xfs/check.status.$3
+                rm -f /var/lib/xfs/check.pid.$3
+                if [[ $exit_status -eq 0 || $exit_status -eq 1 || $exit_status -eq 2 || $exit_status -eq 4 ]]; then
+                    exit $exit_status
+                else
+                    exit 0
+                fi
+            else
+                # Exit status file does not exist, but return status file if available
+                if [ -f /var/lib/xfs/check.status.$3 ]; then
+                    cat /var/lib/xfs/check.status.$3
+                fi
+                exit 8
+            fi
+        fi
+    else
+        # No PID file found, check for existing status
+        if [ -f /var/lib/xfs/check.status.$3 ]; then
+            cat /var/lib/xfs/check.status.$3
+            # If no exit status file, assume process completed successfully
+            if [ -f /var/lib/xfs/check.status.$3.exit ]; then
+                exit_status=$(cat /var/lib/xfs/check.status.$3.exit)
+                if [[ $exit_status -eq 0 || $exit_status -eq 1 || $exit_status -eq 2 || $exit_status -eq 4 ]]; then
+                    exit $exit_status
+                else
+                    exit 0
+                fi
+            else
+                exit 8
+            fi
+        else
+            # No status file found
+            echo "Not available"
+            exit 8
+        fi
+    fi
 ;;
 'cancel')
-	# Cancel the xfs_repair process
-	if [ -f /var/lib/xfs/check.pid.$3 ]; then
-		pid=$(cat /var/lib/xfs/check.pid.$3)
-		kill $pid
-		while kill -0 $pid 2>/dev/null; do
-			sleep 1
-		done
-		echo -e "\nCancelled" >> /var/lib/xfs/check.status.$3
-		rm -f /var/lib/xfs/check.pid.$3
-	else
-		echo "No process to cancel"
-	fi
+    # Cancel the xfs_repair process
+    if [ -f /var/lib/xfs/check.pid.$3 ]; then
+        pid=$(cat /var/lib/xfs/check.pid.$3)
+        kill $pid
+        while kill -0 $pid 2>/dev/null; do
+            sleep 1
+        done
+        echo -e "\nCancelled" >> /var/lib/xfs/check.status.$3
+        rm -f /var/lib/xfs/check.pid.$3
+    else
+        echo "No process to cancel"
+    fi
 
-	exit 0
+    exit 0
 ;;
 *)
-	# Handle invalid commands
-	echo "Invalid command"
-	exit 0
+    # Handle invalid commands
+    echo "Invalid command"
+    exit 0
 ;;
 esac