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Make VM Settings work with grub

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This commit is contained in:
Christoph Hummer
2024-08-09 12:38:18 +02:00
committed by GitHub
parent 663665a61b
commit fb2b66b5b0
1 changed files with 74 additions and 31 deletions
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105
emhttp/plugins/dynamix.vm.manager/include/VMajax.php
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@@ -33,30 +33,60 @@ function scan($line, $text) {
return stripos($line,$text)!==false;
}
function embed(&$syslinux, $key, $value) {
$size = count($syslinux);
$make = false;
$new = strlen($value) ? "$key=$value" : false;
$i = 0;
while ($i < $size) {
// find sections and exclude safemode
if (scan($syslinux[$i],'label ') && !scan($syslinux[$i],'safe mode') && !scan($syslinux[$i],'safemode')) {
$n = $i + 1;
// find the current requested setting
while (!scan($syslinux[$n],'label ') && $n < $size) {
if (scan($syslinux[$n],'append ')) {
$cmd = preg_split('/\s+/',trim($syslinux[$n]));
// replace the existing setting
for ($c = 1; $c < count($cmd); $c++) if (scan($cmd[$c],$key)) {$make |= ($cmd[$c]!=$new); $cmd[$c] = $new; break;}
// or insert the new setting
if ($c==count($cmd) && $new) {array_splice($cmd,-1,0,$new); $make = true;}
$syslinux[$n] = ' '.str_replace(' ',' ',implode(' ',$cmd));
function embed(&$bootcfg, $env, $key, $value) {
if ($env === 'syslinux') {
$size = count($bootcfg);
$make = false;
$new = strlen($value) ? "$key=$value" : false;
$i = 0;
while ($i < $size) {
// find sections and exclude safemode
if (scan($bootcfg[$i],'label ') && !scan($bootcfg[$i],'safe mode') && !scan($bootcfg[$i],'safemode')) {
$n = $i + 1;
// find the current requested setting
while (!scan($bootcfg[$n],'label ') && $n < $size) {
if (scan($bootcfg[$n],'append ')) {
$cmd = preg_split('/\s+/',trim($bootcfg[$n]));
// replace the existing setting
for ($c = 1; $c < count($cmd); $c++) if (scan($cmd[$c],$key)) {$make |= ($cmd[$c]!=$new); $cmd[$c] = $new; break;}
// or insert the new setting
if ($c==count($cmd) && $new) {array_splice($cmd,-1,0,$new); $make = true;}
$bootcfg[$n] = ' '.str_replace(' ',' ',implode(' ',$cmd));
}
$n++;
}
$n++;
$i = $n - 1;
}
$i = $n - 1;
$i++;
}
} elseif ($env === 'grub') {
$size = count($bootcfg);
$make = false;
$new = strlen($value) ? "$key=$value" : false;
$i = 0;
while ($i < $size) {
// find sections and exclude safemode/memtest
if (scan($bootcfg[$i],'menuentry ') && !scan($bootcfg[$i],'safe mode') && !scan($bootcfg[$i],'safemode') && !scan($bootcfg[$i],'memtest')) {
$n = $i + 1;
// find the current requested setting
while (!scan($bootcfg[$n],'menuentry ') && $n < $size) {
if (scan($bootcfg[$n],'linux ')) {
$cmd = preg_split('/\s+/',trim($bootcfg[$n]));
// replace the existing setting
for ($c = 1; $c < count($cmd); $c++) if (scan($cmd[$c],$key)) {$make |= ($cmd[$c]!=$new); $cmd[$c] = $new; break;}
// or insert the new setting
if ($c == count($cmd) && $new) {
$cmd[] = $new;
$make = true;
}
$bootcfg[$n] = ' ' . str_replace(' ', ' ', implode(' ', $cmd));
}
$n++;
}
$i = $n - 1;
}
$i++;
}
$i++;
}
return $make;
}
@@ -536,26 +566,39 @@ case 'hot-detach-usb':
//TODO
break;
case 'syslinux':
$cfg = '/boot/syslinux/syslinux.cfg';
$syslinux = file($cfg, FILE_IGNORE_NEW_LINES+FILE_SKIP_EMPTY_LINES);
$m1 = embed($syslinux, 'pcie_acs_override', $_REQUEST['pcie']);
$m2 = embed($syslinux, 'vfio_iommu_type1.allow_unsafe_interrupts', $_REQUEST['vfio']);
if ($m1||$m2) file_put_contents($cfg, implode("\n",$syslinux)."\n");
case 'cmdlineoverride':
if (is_file('/boot/syslinux/syslinux.cfg')) {
$cfg = '/boot/syslinux/syslinux.cfg';
$env = 'syslinux';
$bootcfg = file($cfg, FILE_IGNORE_NEW_LINES+FILE_SKIP_EMPTY_LINES);
} elseif (is_file('/boot/grub/grub.cfg')) {
$cfg = '/boot/grub/grub.cfg';
$env = 'grub';
$bootcfg = file($cfg, FILE_IGNORE_NEW_LINES);
}
$m1 = embed($bootcfg, $env, 'pcie_acs_override', $_REQUEST['pcie']);
$m2 = embed($bootcfg, $env, 'vfio_iommu_type1.allow_unsafe_interrupts', $_REQUEST['vfio']);
if ($m1||$m2) file_put_contents($cfg, implode("\n",$bootcfg)."\n");
$arrResponse = ['success' => true, 'modified' => $m1|$m2];
break;
case 'reboot':
$cfg = '/boot/syslinux/syslinux.cfg';
$syslinux = file($cfg, FILE_IGNORE_NEW_LINES+FILE_SKIP_EMPTY_LINES);
if (is_file('/boot/syslinux/syslinux.cfg')) {
$cfg = '/boot/syslinux/syslinux.cfg';
$env = 'syslinux';
} elseif (is_file('/boot/grub/grub.cfg')) {
$cfg = '/boot/grub/grub.cfg';
$env = 'grub';
}
$bootcfg = file($cfg, FILE_IGNORE_NEW_LINES+FILE_SKIP_EMPTY_LINES);
$cmdline = explode(' ',file_get_contents('/proc/cmdline'));
$pcie = $vfio = '';
foreach ($cmdline as $cmd) {
if (scan($cmd,'pcie_acs_override')) $pcie = explode('=',$cmd)[1];
if (scan($cmd,'allow_unsafe_interrupts')) $vfio = explode('=',$cmd)[1];
}
$m1 = embed($syslinux, 'pcie_acs_override', $pcie);
$m2 = embed($syslinux, 'vfio_iommu_type1.allow_unsafe_interrupts', $vfio);
$m1 = embed($bootcfg, $env, 'pcie_acs_override', $pcie);
$m2 = embed($bootcfg, $env, 'vfio_iommu_type1.allow_unsafe_interrupts', $vfio);
$arrResponse = ['success' => true, 'modified' => $m1|$m2];
break;