/**
* getVirtualization. Potentially not very accurate especially since you can virtualize hypervisors,
* kernel module names change frequently, you can load (some of) these modules if you aren't a host/guest, etc.
*
* @return array('type' => 'guest', 'method' => kvm or vmware or xen or openvz) or array('type' => 'host', 'methods' = ['intel', 'amd'])
*/
public function getVirtualization()
{
// Time?
if (!empty($this->settings['timer'])) {
$t = new Timer('Determining virtualization type');
}
// OpenVZ host?
if (is_file('/proc/vz/version')) {
return array('type' => 'host', 'method' => 'OpenVZ');
} elseif (is_file('/proc/vz/veinfo')) {
return array('type' => 'guest', 'method' => 'OpenVZ');
}
// Try getting kernel modules
$modules = array();
if (preg_match_all('/^(\\S+)/m', Common::getContents('/proc/modules', ''), $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
$modules[] = $match[1];
}
}
// Sometimes /proc/modules is missing what is in this dir on VMs
foreach (@glob('/sys/bus/pci/drivers/*') as $name) {
$modules[] = basename($name);
}
// VMware guest. Tested on debian under vmware fusion for mac...
if (Common::anyInArray(array('vmw_balloon', 'vmwgfx', 'vmw_vmci'), $modules)) {
return array('type' => 'guest', 'method' => 'VMWare');
}
// VMware Host! tested on rhel6 running vmware..workstation?
if (Common::anyInArray(array('vmnet', 'vmci', 'vmmon'), $modules)) {
return array('type' => 'host', 'method' => 'VMWare');
}
// Looks like it might be xen...
if (Common::anyInArray(array('xenfs', 'xen_gntdev', 'xen_evtchn', 'xen_blkfront', 'xen_netfront'), $modules) || is_dir('/proc/xen')) {
// Guest or host?
if (Common::anyInArray(array('xen-netback', 'xen_blkback'), $modules) || strpos('control_d', Common::getContents('/proc/xen/capabilities', '')) !== false) {
return array('type' => 'host', 'method' => 'Xen');
} else {
return array('type' => 'guest', 'method' => 'Xen');
}
}
// VirtualBox Host! Tested on lucid running vbox..
if (in_array('vboxdrv', $modules)) {
return array('type' => 'host', 'method' => 'VirtualBox');
}
// VirtualBox Guest! Tested on wheezy under mac vbox
if (in_array('vboxguest', $modules)) {
return array('type' => 'guest', 'method' => 'VirtualBox');
}
// Looks like it might be KVM HOST!
if (Common::anyInArray(array('kvm_intel', 'kvm_amd'), $modules)) {
return array('type' => 'host', 'method' => 'KVM');
}
// Looks like it might be a KVM or QEMU guest! This is a bit lame since Xen can also use virtio but its less likely (?)
if (Common::anyInArray(array('virtio', 'virtio_balloon', 'virtio_pci', 'virtio-pci', 'virtio_blk', 'virtio_net'), $modules)) {
return array('type' => 'guest', 'method' => 'Qemu/KVM');
}
// idk
return false;
}
/**
* @test
*/
public function anyInArray()
{
$this->assertTrue(Common::anyInArray(array(1, 2, 3, 4, 5), array(5, 6, 7)));
$this->assertFalse(Common::anyInArray(array(8, 9, 10), array(11, 12, 3)));
}