PVE/QemuServer.pm

   1 package PVE::QemuServer;
   2
   3 use strict;
   4 use POSIX;
   5 use IO::Handle;
   6 use IO::Select;
   7 use IO::File;
   8 use IO::Dir;
   9 use IO::Socket::UNIX;
  10 use File::Basename;
  11 use File::Path;
  12 use File::stat;
  13 use Getopt::Long;
  14 use Digest::SHA;
  15 use Fcntl ':flock';
  16 use Cwd 'abs_path';
  17 use IPC::Open3;
  18 use JSON;
  19 use Fcntl;
  20 use PVE::SafeSyslog;
  21 use Storable qw(dclone);
  22 use PVE::Exception qw(raise raise_param_exc);
  23 use PVE::Storage;
  24 use PVE::Tools qw(run_command lock_file file_read_firstline);
  25 use PVE::JSONSchema qw(get_standard_option);
  26 use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file);
  27 use PVE::INotify;
  28 use PVE::ProcFSTools;
  29 use PVE::QMPClient;
  30 use PVE::RPCEnvironment;
  31 use Time::HiRes qw(gettimeofday);
  32
  33 my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
  34
  35 # Note about locking: we use flock on the config file protect
  36 # against concurent actions.
  37 # Aditionaly, we have a 'lock' setting in the config file. This
  38 # can be set to 'migrate', 'backup', 'snapshot' or 'rollback'. Most actions are not
  39 # allowed when such lock is set. But you can ignore this kind of
  40 # lock with the --skiplock flag.
  41
  42 cfs_register_file('/qemu-server/',
  43                   \&parse_vm_config,
  44                   \&write_vm_config);
  45
  46 PVE::JSONSchema::register_standard_option('skiplock', {
  47     description => "Ignore locks - only root is allowed to use this option.",
  48     type => 'boolean',
  49     optional => 1,
  50 });
  51
  52 PVE::JSONSchema::register_standard_option('pve-qm-stateuri', {
  53     description => "Some command save/restore state from this location.",
  54     type => 'string',
  55     maxLength => 128,
  56     optional => 1,
  57 });
  58
  59 PVE::JSONSchema::register_standard_option('pve-snapshot-name', {
  60     description => "The name of the snapshot.",
  61     type => 'string', format => 'pve-configid',
  62     maxLength => 40,
  63 });
  64
  65 #no warnings 'redefine';
  66
  67 unless(defined(&_VZSYSCALLS_H_)) {
  68     eval 'sub _VZSYSCALLS_H_ () {1;}' unless defined(&_VZSYSCALLS_H_);
  69     require 'sys/syscall.ph';
  70     if(defined(&__x86_64__)) {
  71         eval 'sub __NR_fairsched_vcpus () {499;}' unless defined(&__NR_fairsched_vcpus);
  72         eval 'sub __NR_fairsched_mknod () {504;}' unless defined(&__NR_fairsched_mknod);
  73         eval 'sub __NR_fairsched_rmnod () {505;}' unless defined(&__NR_fairsched_rmnod);
  74         eval 'sub __NR_fairsched_chwt () {506;}' unless defined(&__NR_fairsched_chwt);
  75         eval 'sub __NR_fairsched_mvpr () {507;}' unless defined(&__NR_fairsched_mvpr);
  76         eval 'sub __NR_fairsched_rate () {508;}' unless defined(&__NR_fairsched_rate);
  77         eval 'sub __NR_setluid () {501;}' unless defined(&__NR_setluid);
  78         eval 'sub __NR_setublimit () {502;}' unless defined(&__NR_setublimit);
  79     }
  80     elsif(defined( &__i386__) ) {
  81         eval 'sub __NR_fairsched_mknod () {500;}' unless defined(&__NR_fairsched_mknod);
  82         eval 'sub __NR_fairsched_rmnod () {501;}' unless defined(&__NR_fairsched_rmnod);
  83         eval 'sub __NR_fairsched_chwt () {502;}' unless defined(&__NR_fairsched_chwt);
  84         eval 'sub __NR_fairsched_mvpr () {503;}' unless defined(&__NR_fairsched_mvpr);
  85         eval 'sub __NR_fairsched_rate () {504;}' unless defined(&__NR_fairsched_rate);
  86         eval 'sub __NR_fairsched_vcpus () {505;}' unless defined(&__NR_fairsched_vcpus);
  87         eval 'sub __NR_setluid () {511;}' unless defined(&__NR_setluid);
  88         eval 'sub __NR_setublimit () {512;}' unless defined(&__NR_setublimit);
  89     } else {
  90         die("no fairsched syscall for this arch");
  91     }
  92     require 'asm/ioctl.ph';
  93     eval 'sub KVM_GET_API_VERSION () { &_IO(0xAE, 0x);}' unless defined(&KVM_GET_API_VERSION);
  94 }
  95
  96 sub fairsched_mknod {
  97     my ($parent, $weight, $desired) = @_;
  98
  99     return syscall(&__NR_fairsched_mknod, int($parent), int($weight), int($desired));
 100 }
 101
 102 sub fairsched_rmnod {
 103     my ($id) = @_;
 104
 105     return syscall(&__NR_fairsched_rmnod, int($id));
 106 }
 107
 108 sub fairsched_mvpr {
 109     my ($pid, $newid) = @_;
 110
 111     return syscall(&__NR_fairsched_mvpr, int($pid), int($newid));
 112 }
 113
 114 sub fairsched_vcpus {
 115     my ($id, $vcpus) = @_;
 116
 117     return syscall(&__NR_fairsched_vcpus, int($id), int($vcpus));
 118 }
 119
 120 sub fairsched_rate {
 121     my ($id, $op, $rate) = @_;
 122
 123     return syscall(&__NR_fairsched_rate, int($id), int($op), int($rate));
 124 }
 125
 126 use constant FAIRSCHED_SET_RATE  => 0;
 127 use constant FAIRSCHED_DROP_RATE => 1;
 128 use constant FAIRSCHED_GET_RATE  => 2;
 129
 130 sub fairsched_cpulimit {
 131     my ($id, $limit) = @_;
 132
 133     my $cpulim1024 = int($limit * 1024 / 100);
 134     my $op = $cpulim1024 ? FAIRSCHED_SET_RATE : FAIRSCHED_DROP_RATE;
 135
 136     return fairsched_rate($id, $op, $cpulim1024);
 137 }
 138
 139 my $nodename = PVE::INotify::nodename();
 140
 141 mkdir "/etc/pve/nodes/$nodename";
 142 my $confdir = "/etc/pve/nodes/$nodename/qemu-server";
 143 mkdir $confdir;
 144
 145 my $var_run_tmpdir = "/var/run/qemu-server";
 146 mkdir $var_run_tmpdir;
 147
 148 my $lock_dir = "/var/lock/qemu-server";
 149 mkdir $lock_dir;
 150
 151 my $pcisysfs = "/sys/bus/pci";
 152
 153 my $confdesc = {
 154     onboot => {
 155         optional => 1,
 156         type => 'boolean',
 157         description => "Specifies whether a VM will be started during system bootup.",
 158         default => 0,
 159     },
 160     autostart => {
 161         optional => 1,
 162         type => 'boolean',
 163         description => "Automatic restart after crash (currently ignored).",
 164         default => 0,
 165     },
 166     hotplug => {
 167         optional => 1,
 168         type => 'boolean',
 169         description => "Activate hotplug for disk and network device",
 170         default => 0,
 171     },
 172     reboot => {
 173         optional => 1,
 174         type => 'boolean',
 175         description => "Allow reboot. If set to '0' the VM exit on reboot.",
 176         default => 1,
 177     },
 178     lock => {
 179         optional => 1,
 180         type => 'string',
 181         description => "Lock/unlock the VM.",
 182         enum => [qw(migrate backup snapshot rollback)],
 183     },
 184     cpulimit => {
 185         optional => 1,
 186         type => 'integer',
 187         description => "Limit of CPU usage in per cent. Note if the computer has 2 CPUs, it has total of 200% CPU time. Value '0' indicates no CPU limit.\n\nNOTE: This option is currently ignored.",
 188         minimum => 0,
 189         default => 0,
 190     },
 191     cpuunits => {
 192         optional => 1,
 193         type => 'integer',
 194         description => "CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to weights of all the other running VMs.\n\nNOTE: You can disable fair-scheduler configuration by setting this to 0.",
 195         minimum => 0,
 196         maximum => 500000,
 197         default => 1000,
 198     },
 199     memory => {
 200         optional => 1,
 201         type => 'integer',
 202         description => "Amount of RAM for the VM in MB. This is the maximum available memory when you use the balloon device.",
 203         minimum => 16,
 204         default => 512,
 205     },
 206     balloon => {
 207         optional => 1,
 208         type => 'integer',
 209         description => "Amount of target RAM for the VM in MB. Using zero disables the ballon driver.",
 210         minimum => 0,
 211     },
 212     shares => {
 213         optional => 1,
 214         type => 'integer',
 215         description => "Amount of memory shares for auto-ballooning. The larger the number is, the more memory this VM gets. Number is relative to weights of all other running VMs. Using zero disables auto-ballooning",
 216         minimum => 0,
 217         maximum => 50000,
 218         default => 1000,
 219     },
 220     keyboard => {
 221         optional => 1,
 222         type => 'string',
 223         description => "Keybord layout for vnc server. Default is read from the datacenter configuration file.",
 224         enum => PVE::Tools::kvmkeymaplist(),
 225         default => 'en-us',
 226     },
 227     name => {
 228         optional => 1,
 229         type => 'string', format => 'dns-name',
 230         description => "Set a name for the VM. Only used on the configuration web interface.",
 231     },
 232     scsihw => {
 233         optional => 1,
 234         type => 'string',
 235         description => "scsi controller model",
 236         enum => [qw(lsi virtio-scsi-pci megasas)],
 237         default => 'lsi',
 238     },
 239     description => {
 240         optional => 1,
 241         type => 'string',
 242         description => "Description for the VM. Only used on the configuration web interface. This is saved as comment inside the configuration file.",
 243     },
 244     ostype => {
 245         optional => 1,
 246         type => 'string',
 247         enum => [qw(other wxp w2k w2k3 w2k8 wvista win7 win8 l24 l26)],
 248         description => <<EODESC,
 249 Used to enable special optimization/features for specific
 250 operating systems:
 251
 252 other  => unspecified OS
 253 wxp    => Microsoft Windows XP
 254 w2k    => Microsoft Windows 2000
 255 w2k3   => Microsoft Windows 2003
 256 w2k8   => Microsoft Windows 2008
 257 wvista => Microsoft Windows Vista
 258 win7   => Microsoft Windows 7
 259 win8   => Microsoft Windows 8/2012
 260 l24    => Linux 2.4 Kernel
 261 l26    => Linux 2.6/3.X Kernel
 262
 263 other|l24|l26                       ... no special behaviour
 264 wxp|w2k|w2k3|w2k8|wvista|win7|win8  ... use --localtime switch
 265 EODESC
 266     },
 267     boot => {
 268         optional => 1,
 269         type => 'string',
 270         description => "Boot on floppy (a), hard disk (c), CD-ROM (d), or network (n).",
 271         pattern => '[acdn]{1,4}',
 272         default => 'cdn',
 273     },
 274     bootdisk => {
 275         optional => 1,
 276         type => 'string', format => 'pve-qm-bootdisk',
 277         description => "Enable booting from specified disk.",
 278         pattern => '(ide|sata|scsi|virtio)\d+',
 279     },
 280     smp => {
 281         optional => 1,
 282         type => 'integer',
 283         description => "The number of CPUs. Please use option -sockets instead.",
 284         minimum => 1,
 285         default => 1,
 286     },
 287     sockets => {
 288         optional => 1,
 289         type => 'integer',
 290         description => "The number of CPU sockets.",
 291         minimum => 1,
 292         default => 1,
 293     },
 294     cores => {
 295         optional => 1,
 296         type => 'integer',
 297         description => "The number of cores per socket.",
 298         minimum => 1,
 299         default => 1,
 300     },
 301     acpi => {
 302         optional => 1,
 303         type => 'boolean',
 304         description => "Enable/disable ACPI.",
 305         default => 1,
 306     },
 307     agent => {
 308         optional => 1,
 309         type => 'boolean',
 310         description => "Enable/disable Qemu GuestAgent.",
 311         default => 0,
 312     },
 313     kvm => {
 314         optional => 1,
 315         type => 'boolean',
 316         description => "Enable/disable KVM hardware virtualization.",
 317         default => 1,
 318     },
 319     tdf => {
 320         optional => 1,
 321         type => 'boolean',
 322         description => "Enable/disable time drift fix.",
 323         default => 0,
 324     },
 325     localtime => {
 326         optional => 1,
 327         type => 'boolean',
 328         description => "Set the real time clock to local time. This is enabled by default if ostype indicates a Microsoft OS.",
 329     },
 330     freeze => {
 331         optional => 1,
 332         type => 'boolean',
 333         description => "Freeze CPU at startup (use 'c' monitor command to start execution).",
 334     },
 335     vga => {
 336         optional => 1,
 337         type => 'string',
 338         description => "Select VGA type. If you want to use high resolution modes (>= 1280x1024x16) then you should use option 'std' or 'vmware'. Default is 'std' for win8/win7/w2k8, and 'cirrur' for other OS types",
 339         enum => [qw(std cirrus vmware)],
 340     },
 341     watchdog => {
 342         optional => 1,
 343         type => 'string', format => 'pve-qm-watchdog',
 344         typetext => '[[model=]i6300esb|ib700] [,[action=]reset|shutdown|poweroff|pause|debug|none]',
 345         description => "Create a virtual hardware watchdog device.  Once enabled (by a guest action), the watchdog must be periodically polled by an agent inside the guest or else the guest will be restarted (or execute the action specified)",
 346     },
 347     startdate => {
 348         optional => 1,
 349         type => 'string',
 350         typetext => "(now | YYYY-MM-DD | YYYY-MM-DDTHH:MM:SS)",
 351         description => "Set the initial date of the real time clock. Valid format for date are: 'now' or '2006-06-17T16:01:21' or '2006-06-17'.",
 352         pattern => '(now|\d{4}-\d{1,2}-\d{1,2}(T\d{1,2}:\d{1,2}:\d{1,2})?)',
 353         default => 'now',
 354     },
 355     startup => {
 356         optional => 1,
 357         type => 'string', format => 'pve-qm-startup',
 358         typetext => '[[order=]\d+] [,up=\d+] [,down=\d+] ',
 359         description => "Startup and shutdown behavior. Order is a non-negative number defining the general startup order. Shutdown in done with reverse ordering. Additionally you can set the 'up' or 'down' delay in seconds, which specifies a delay to wait before the next VM is started or stopped.",
 360     },
 361     args => {
 362         optional => 1,
 363         type => 'string',
 364         description => <<EODESCR,
 365 Note: this option is for experts only. It allows you to pass arbitrary arguments to kvm, for example:
 366
 367 args: -no-reboot -no-hpet
 368 EODESCR
 369     },
 370     tablet => {
 371         optional => 1,
 372         type => 'boolean',
 373         default => 1,
 374         description => "Enable/disable the usb tablet device. This device is usually needed to allow absolute mouse positioning. Else the mouse runs out of sync with normal vnc clients. If you're running lots of console-only guests on one host, you may consider disabling this to save some context switches.",
 375     },
 376     migrate_speed => {
 377         optional => 1,
 378         type => 'integer',
 379         description => "Set maximum speed (in MB/s) for migrations. Value 0 is no limit.",
 380         minimum => 0,
 381         default => 0,
 382     },
 383     migrate_downtime => {
 384         optional => 1,
 385         type => 'number',
 386         description => "Set maximum tolerated downtime (in seconds) for migrations.",
 387         minimum => 0,
 388         default => 0.1,
 389     },
 390     cdrom => {
 391         optional => 1,
 392         type => 'string', format => 'pve-qm-drive',
 393         typetext => 'volume',
 394         description => "This is an alias for option -ide2",
 395     },
 396     cpu => {
 397         optional => 1,
 398         description => "Emulated CPU type.",
 399         type => 'string',
 400         enum => [ qw(486 athlon pentium pentium2 pentium3 coreduo core2duo kvm32 kvm64 qemu32 qemu64 phenom Conroe Penryn Nehalem Westmere SandyBridge Haswell Opteron_G1 Opteron_G2 Opteron_G3 Opteron_G4 Opteron_G5 host) ],
 401         default => 'qemu64',
 402     },
 403     parent => get_standard_option('pve-snapshot-name', {
 404         optional => 1,
 405         description => "Parent snapshot name. This is used internally, and should not be modified.",
 406     }),
 407     snaptime => {
 408         optional => 1,
 409         description => "Timestamp for snapshots.",
 410         type => 'integer',
 411         minimum => 0,
 412     },
 413     vmstate => {
 414         optional => 1,
 415         type => 'string', format => 'pve-volume-id',
 416         description => "Reference to a volume which stores the VM state. This is used internally for snapshots.",
 417     },
 418 };
 419
 420 # what about other qemu settings ?
 421 #cpu => 'string',
 422 #machine => 'string',
 423 #fda => 'file',
 424 #fdb => 'file',
 425 #mtdblock => 'file',
 426 #sd => 'file',
 427 #pflash => 'file',
 428 #snapshot => 'bool',
 429 #bootp => 'file',
 430 ##tftp => 'dir',
 431 ##smb => 'dir',
 432 #kernel => 'file',
 433 #append => 'string',
 434 #initrd => 'file',
 435 ##soundhw => 'string',
 436
 437 while (my ($k, $v) = each %$confdesc) {
 438     PVE::JSONSchema::register_standard_option("pve-qm-$k", $v);
 439 }
 440
 441 my $MAX_IDE_DISKS = 4;
 442 my $MAX_SCSI_DISKS = 14;
 443 my $MAX_VIRTIO_DISKS = 16;
 444 my $MAX_SATA_DISKS = 6;
 445 my $MAX_USB_DEVICES = 5;
 446 my $MAX_NETS = 32;
 447 my $MAX_UNUSED_DISKS = 8;
 448 my $MAX_HOSTPCI_DEVICES = 2;
 449 my $MAX_SERIAL_PORTS = 4;
 450 my $MAX_PARALLEL_PORTS = 3;
 451
 452 my $nic_model_list = ['rtl8139', 'ne2k_pci', 'e1000',  'pcnet',  'virtio',
 453                       'ne2k_isa', 'i82551', 'i82557b', 'i82559er'];
 454 my $nic_model_list_txt = join(' ', sort @$nic_model_list);
 455
 456 my $netdesc = {
 457     optional => 1,
 458     type => 'string', format => 'pve-qm-net',
 459     typetext => "MODEL=XX:XX:XX:XX:XX:XX [,bridge=<dev>][,rate=<mbps>][,tag=<vlanid>]",
 460     description => <<EODESCR,
 461 Specify network devices.
 462
 463 MODEL is one of: $nic_model_list_txt
 464
 465 XX:XX:XX:XX:XX:XX should be an unique MAC address. This is
 466 automatically generated if not specified.
 467
 468 The bridge parameter can be used to automatically add the interface to a bridge device. The Proxmox VE standard bridge is called 'vmbr0'.
 469
 470 Option 'rate' is used to limit traffic bandwidth from and to this interface. It is specified as floating point number, unit is 'Megabytes per second'.
 471
 472 If you specify no bridge, we create a kvm 'user' (NATed) network device, which provides DHCP and DNS services. The following addresses are used:
 473
 474 10.0.2.2   Gateway
 475 10.0.2.3   DNS Server
 476 10.0.2.4   SMB Server
 477
 478 The DHCP server assign addresses to the guest starting from 10.0.2.15.
 479
 480 EODESCR
 481 };
 482 PVE::JSONSchema::register_standard_option("pve-qm-net", $netdesc);
 483
 484 for (my $i = 0; $i < $MAX_NETS; $i++)  {
 485     $confdesc->{"net$i"} = $netdesc;
 486 }
 487
 488 my $drivename_hash;
 489
 490 my $idedesc = {
 491     optional => 1,
 492     type => 'string', format => 'pve-qm-drive',
 493     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 494     description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").",
 495 };
 496 PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc);
 497
 498 my $scsidesc = {
 499     optional => 1,
 500     type => 'string', format => 'pve-qm-drive',
 501     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 502     description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").",
 503 };
 504 PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc);
 505
 506 my $satadesc = {
 507     optional => 1,
 508     type => 'string', format => 'pve-qm-drive',
 509     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 510     description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").",
 511 };
 512 PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc);
 513
 514 my $virtiodesc = {
 515     optional => 1,
 516     type => 'string', format => 'pve-qm-drive',
 517     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 518     description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").",
 519 };
 520 PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc);
 521
 522 my $usbdesc = {
 523     optional => 1,
 524     type => 'string', format => 'pve-qm-usb-device',
 525     typetext => 'host=HOSTUSBDEVICE',
 526     description => <<EODESCR,
 527 Configure an USB device (n is 0 to 4). This can be used to
 528 pass-through usb devices to the guest. HOSTUSBDEVICE syntax is:
 529
 530 'bus-port(.port)*' (decimal numbers) or
 531 'vendor_id:product_id' (hexadeciaml numbers)
 532
 533 You can use the 'lsusb -t' command to list existing usb devices.
 534
 535 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 536
 537 EODESCR
 538 };
 539 PVE::JSONSchema::register_standard_option("pve-qm-usb", $usbdesc);
 540
 541 my $hostpcidesc = {
 542         optional => 1,
 543         type => 'string', format => 'pve-qm-hostpci',
 544         typetext => "HOSTPCIDEVICE",
 545         description => <<EODESCR,
 546 Map host pci devices. HOSTPCIDEVICE syntax is:
 547
 548 'bus:dev.func' (hexadecimal numbers)
 549
 550 You can us the 'lspci' command to list existing pci devices.
 551
 552 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 553
 554 Experimental: user reported problems with this option.
 555 EODESCR
 556 };
 557 PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
 558
 559 my $serialdesc = {
 560         optional => 1,
 561         type => 'string',
 562         pattern => '/dev/ttyS\d+',
 563         description =>  <<EODESCR,
 564 Map host serial devices (n is 0 to 3).
 565
 566 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 567
 568 Experimental: user reported problems with this option.
 569 EODESCR
 570 };
 571
 572 my $paralleldesc= {
 573         optional => 1,
 574         type => 'string',
 575         pattern => '/dev/parport\d+',
 576         description =>  <<EODESCR,
 577 Map host parallel devices (n is 0 to 2).
 578
 579 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 580
 581 Experimental: user reported problems with this option.
 582 EODESCR
 583 };
 584
 585 for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
 586     $confdesc->{"parallel$i"} = $paralleldesc;
 587 }
 588
 589 for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
 590     $confdesc->{"serial$i"} = $serialdesc;
 591 }
 592
 593 for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
 594     $confdesc->{"hostpci$i"} = $hostpcidesc;
 595 }
 596
 597 for (my $i = 0; $i < $MAX_IDE_DISKS; $i++)  {
 598     $drivename_hash->{"ide$i"} = 1;
 599     $confdesc->{"ide$i"} = $idedesc;
 600 }
 601
 602 for (my $i = 0; $i < $MAX_SATA_DISKS; $i++)  {
 603     $drivename_hash->{"sata$i"} = 1;
 604     $confdesc->{"sata$i"} = $satadesc;
 605 }
 606
 607 for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++)  {
 608     $drivename_hash->{"scsi$i"} = 1;
 609     $confdesc->{"scsi$i"} = $scsidesc ;
 610 }
 611
 612 for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++)  {
 613     $drivename_hash->{"virtio$i"} = 1;
 614     $confdesc->{"virtio$i"} = $virtiodesc;
 615 }
 616
 617 for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
 618     $confdesc->{"usb$i"} = $usbdesc;
 619 }
 620
 621 my $unuseddesc = {
 622     optional => 1,
 623     type => 'string', format => 'pve-volume-id',
 624     description => "Reference to unused volumes.",
 625 };
 626
 627 for (my $i = 0; $i < $MAX_UNUSED_DISKS; $i++)  {
 628     $confdesc->{"unused$i"} = $unuseddesc;
 629 }
 630
 631 my $kvm_api_version = 0;
 632
 633 sub kvm_version {
 634
 635     return $kvm_api_version if $kvm_api_version;
 636
 637     my $fh = IO::File->new("</dev/kvm") ||
 638         return 0;
 639
 640     if (my $v = $fh->ioctl(KVM_GET_API_VERSION(), 0)) {
 641         $kvm_api_version = $v;
 642     }
 643
 644     $fh->close();
 645
 646     return  $kvm_api_version;
 647 }
 648
 649 my $kvm_user_version;
 650
 651 sub kvm_user_version {
 652
 653     return $kvm_user_version if $kvm_user_version;
 654
 655     $kvm_user_version = 'unknown';
 656
 657     my $tmp = `kvm -help 2>/dev/null`;
 658
 659     if ($tmp =~ m/^QEMU( PC)? emulator version (\d+\.\d+(\.\d+)?)[,\s]/) {
 660         $kvm_user_version = $2;
 661     }
 662
 663     return $kvm_user_version;
 664
 665 }
 666
 667 my $kernel_has_vhost_net = -c '/dev/vhost-net';
 668
 669 sub disknames {
 670     # order is important - used to autoselect boot disk
 671     return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))),
 672             (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))),
 673             (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))),
 674             (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))));
 675 }
 676
 677 sub valid_drivename {
 678     my $dev = shift;
 679
 680     return defined($drivename_hash->{$dev});
 681 }
 682
 683 sub option_exists {
 684     my $key = shift;
 685     return defined($confdesc->{$key});
 686 }
 687
 688 sub nic_models {
 689     return $nic_model_list;
 690 }
 691
 692 sub os_list_description {
 693
 694     return {
 695         other => 'Other',
 696         wxp => 'Windows XP',
 697         w2k => 'Windows 2000',
 698         w2k3 =>, 'Windows 2003',
 699         w2k8 => 'Windows 2008',
 700         wvista => 'Windows Vista',
 701         win7 => 'Windows 7',
 702         win8 => 'Windows 8/2012',
 703         l24 => 'Linux 2.4',
 704         l26 => 'Linux 2.6',
 705     };
 706 }
 707
 708 my $cdrom_path;
 709
 710 sub get_cdrom_path {
 711
 712     return  $cdrom_path if $cdrom_path;
 713
 714     return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
 715     return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
 716     return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
 717 }
 718
 719 sub get_iso_path {
 720     my ($storecfg, $vmid, $cdrom) = @_;
 721
 722     if ($cdrom eq 'cdrom') {
 723         return get_cdrom_path();
 724     } elsif ($cdrom eq 'none') {
 725         return '';
 726     } elsif ($cdrom =~ m|^/|) {
 727         return $cdrom;
 728     } else {
 729         return PVE::Storage::path($storecfg, $cdrom);
 730     }
 731 }
 732
 733 # try to convert old style file names to volume IDs
 734 sub filename_to_volume_id {
 735     my ($vmid, $file, $media) = @_;
 736
 737     if (!($file eq 'none' || $file eq 'cdrom' ||
 738           $file =~ m|^/dev/.+| || $file =~ m/^([^:]+):(.+)$/)) {
 739
 740         return undef if $file =~ m|/|;
 741
 742         if ($media && $media eq 'cdrom') {
 743             $file = "local:iso/$file";
 744         } else {
 745             $file = "local:$vmid/$file";
 746         }
 747     }
 748
 749     return $file;
 750 }
 751
 752 sub verify_media_type {
 753     my ($opt, $vtype, $media) = @_;
 754
 755     return if !$media;
 756
 757     my $etype;
 758     if ($media eq 'disk') {
 759         $etype = 'images';
 760     } elsif ($media eq 'cdrom') {
 761         $etype = 'iso';
 762     } else {
 763         die "internal error";
 764     }
 765
 766     return if ($vtype eq $etype);
 767
 768     raise_param_exc({ $opt => "unexpected media type ($vtype != $etype)" });
 769 }
 770
 771 sub cleanup_drive_path {
 772     my ($opt, $storecfg, $drive) = @_;
 773
 774     # try to convert filesystem paths to volume IDs
 775
 776     if (($drive->{file} !~ m/^(cdrom|none)$/) &&
 777         ($drive->{file} !~ m|^/dev/.+|) &&
 778         ($drive->{file} !~ m/^([^:]+):(.+)$/) &&
 779         ($drive->{file} !~ m/^\d+$/)) {
 780         my ($vtype, $volid) = PVE::Storage::path_to_volume_id($storecfg, $drive->{file});
 781         raise_param_exc({ $opt => "unable to associate path '$drive->{file}' to any storage"}) if !$vtype;
 782         $drive->{media} = 'cdrom' if !$drive->{media} && $vtype eq 'iso';
 783         verify_media_type($opt, $vtype, $drive->{media});
 784         $drive->{file} = $volid;
 785     }
 786
 787     $drive->{media} = 'cdrom' if !$drive->{media} && $drive->{file} =~ m/^(cdrom|none)$/;
 788 }
 789
 790 sub create_conf_nolock {
 791     my ($vmid, $settings) = @_;
 792
 793     my $filename = config_file($vmid);
 794
 795     die "configuration file '$filename' already exists\n" if -f $filename;
 796
 797     my $defaults = load_defaults();
 798
 799     $settings->{name} = "vm$vmid" if !$settings->{name};
 800     $settings->{memory} = $defaults->{memory} if !$settings->{memory};
 801
 802     my $data = '';
 803     foreach my $opt (keys %$settings) {
 804         next if !$confdesc->{$opt};
 805
 806         my $value = $settings->{$opt};
 807         next if !$value;
 808
 809         $data .= "$opt: $value\n";
 810     }
 811
 812     PVE::Tools::file_set_contents($filename, $data);
 813 }
 814
 815 my $parse_size = sub {
 816     my ($value) = @_;
 817
 818     return undef if $value !~ m/^(\d+(\.\d+)?)([KMG])?$/;
 819     my ($size, $unit) = ($1, $3);
 820     if ($unit) {
 821         if ($unit eq 'K') {
 822             $size = $size * 1024;
 823         } elsif ($unit eq 'M') {
 824             $size = $size * 1024 * 1024;
 825         } elsif ($unit eq 'G') {
 826             $size = $size * 1024 * 1024 * 1024;
 827         }
 828     }
 829     return int($size);
 830 };
 831
 832 my $format_size = sub {
 833     my ($size) = @_;
 834
 835     $size = int($size);
 836
 837     my $kb = int($size/1024);
 838     return $size if $kb*1024 != $size;
 839
 840     my $mb = int($kb/1024);
 841     return "${kb}K" if $mb*1024 != $kb;
 842
 843     my $gb = int($mb/1024);
 844     return "${mb}M" if $gb*1024 != $mb;
 845
 846     return "${gb}G";
 847 };
 848
 849 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 850 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 851 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
 852 #        [,aio=native|threads]
 853
 854 sub parse_drive {
 855     my ($key, $data) = @_;
 856
 857     my $res = {};
 858
 859     # $key may be undefined - used to verify JSON parameters
 860     if (!defined($key)) {
 861         $res->{interface} = 'unknown'; # should not harm when used to verify parameters
 862         $res->{index} = 0;
 863     } elsif ($key =~ m/^([^\d]+)(\d+)$/) {
 864         $res->{interface} = $1;
 865         $res->{index} = $2;
 866     } else {
 867         return undef;
 868     }
 869
 870     foreach my $p (split (/,/, $data)) {
 871         next if $p =~ m/^\s*$/;
 872
 873         if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|bps_rd|mbps_rd|bps_wr|mbps_wr|iops|iops_rd|iops_wr|size)=(.+)$/) {
 874             my ($k, $v) = ($1, $2);
 875
 876             $k = 'file' if $k eq 'volume';
 877
 878             return undef if defined $res->{$k};
 879
 880             if ($k eq 'bps' || $k eq 'bps_rd' || $k eq 'bps_wr') {
 881                 return undef if !$v || $v !~ m/^\d+/;
 882                 $k = "m$k";
 883                 $v = sprintf("%.3f", $v / (1024*1024));
 884             }
 885             $res->{$k} = $v;
 886         } else {
 887             if (!$res->{file} && $p !~ m/=/) {
 888                 $res->{file} = $p;
 889             } else {
 890                 return undef;
 891             }
 892         }
 893     }
 894
 895     return undef if !$res->{file};
 896
 897     return undef if $res->{cache} &&
 898         $res->{cache} !~ m/^(off|none|writethrough|writeback|unsafe|directsync)$/;
 899     return undef if $res->{snapshot} && $res->{snapshot} !~ m/^(on|off)$/;
 900     return undef if $res->{cyls} && $res->{cyls} !~ m/^\d+$/;
 901     return undef if $res->{heads} && $res->{heads} !~ m/^\d+$/;
 902     return undef if $res->{secs} && $res->{secs} !~ m/^\d+$/;
 903     return undef if $res->{media} && $res->{media} !~ m/^(disk|cdrom)$/;
 904     return undef if $res->{trans} && $res->{trans} !~ m/^(none|lba|auto)$/;
 905     return undef if $res->{format} && $res->{format} !~ m/^(raw|cow|qcow|qcow2|vmdk|cloop)$/;
 906     return undef if $res->{rerror} && $res->{rerror} !~ m/^(ignore|report|stop)$/;
 907     return undef if $res->{werror} && $res->{werror} !~ m/^(enospc|ignore|report|stop)$/;
 908     return undef if $res->{backup} && $res->{backup} !~ m/^(yes|no)$/;
 909     return undef if $res->{aio} && $res->{aio} !~ m/^(native|threads)$/;
 910
 911
 912     return undef if $res->{mbps_rd} && $res->{mbps};
 913     return undef if $res->{mbps_wr} && $res->{mbps};
 914
 915     return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
 916     return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
 917     return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
 918
 919     return undef if $res->{iops_rd} && $res->{iops};
 920     return undef if $res->{iops_wr} && $res->{iops};
 921     return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
 922     return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
 923     return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
 924
 925
 926     if ($res->{size}) {
 927         return undef if !defined($res->{size} = &$parse_size($res->{size}));
 928     }
 929
 930     if ($res->{media} && ($res->{media} eq 'cdrom')) {
 931         return undef if $res->{snapshot} || $res->{trans} || $res->{format};
 932         return undef if $res->{heads} || $res->{secs} || $res->{cyls};
 933         return undef if $res->{interface} eq 'virtio';
 934     }
 935
 936     # rerror does not work with scsi drives
 937     if ($res->{rerror}) {
 938         return undef if $res->{interface} eq 'scsi';
 939     }
 940
 941     return $res;
 942 }
 943
 944 my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio iops iops_rd iops_wr);
 945
 946 sub print_drive {
 947     my ($vmid, $drive) = @_;
 948
 949     my $opts = '';
 950     foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'backup') {
 951         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
 952     }
 953
 954     if ($drive->{size}) {
 955         $opts .= ",size=" . &$format_size($drive->{size});
 956     }
 957
 958     return "$drive->{file}$opts";
 959 }
 960
 961 sub scsi_inquiry {
 962     my($fh, $noerr) = @_;
 963
 964     my $SG_IO = 0x2285;
 965     my $SG_GET_VERSION_NUM = 0x2282;
 966
 967     my $versionbuf = "\x00" x 8;
 968     my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
 969     if (!$ret) {
 970         die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
 971         return undef;
 972     }
 973     my $version = unpack("I", $versionbuf);
 974     if ($version < 30000) {
 975         die "scsi generic interface too old\n"  if !$noerr;
 976         return undef;
 977     }
 978
 979     my $buf = "\x00" x 36;
 980     my $sensebuf = "\x00" x 8;
 981     my $cmd = pack("C x3 C x11", 0x12, 36);
 982
 983     # see /usr/include/scsi/sg.h
 984     my $sg_io_hdr_t = "i i C C s I P P P I I i P C C C C S S i I I";
 985
 986     my $packet = pack($sg_io_hdr_t, ord('S'), -3, length($cmd),
 987                       length($sensebuf), 0, length($buf), $buf,
 988                       $cmd, $sensebuf, 6000);
 989
 990     $ret = ioctl($fh, $SG_IO, $packet);
 991     if (!$ret) {
 992         die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
 993         return undef;
 994     }
 995
 996     my @res = unpack($sg_io_hdr_t, $packet);
 997     if ($res[17] || $res[18]) {
 998         die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
 999         return undef;
1000     }
1001
1002     my $res = {};
1003     ($res->{device}, $res->{removable}, $res->{venodor},
1004      $res->{product}, $res->{revision}) = unpack("C C x6 A8 A16 A4", $buf);
1005
1006     return $res;
1007 }
1008
1009 sub path_is_scsi {
1010     my ($path) = @_;
1011
1012     my $fh = IO::File->new("+<$path") || return undef;
1013     my $res = scsi_inquiry($fh, 1);
1014     close($fh);
1015
1016     return $res;
1017 }
1018
1019 sub print_drivedevice_full {
1020     my ($storecfg, $conf, $vmid, $drive, $bridges) = @_;
1021
1022     my $device = '';
1023     my $maxdev = 0;
1024
1025     if ($drive->{interface} eq 'virtio') {
1026         my $pciaddr = print_pci_addr("$drive->{interface}$drive->{index}", $bridges);
1027         $device = "virtio-blk-pci,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}$pciaddr";
1028     } elsif ($drive->{interface} eq 'scsi') {
1029         $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
1030         my $controller = int($drive->{index} / $maxdev);
1031         my $unit = $drive->{index} % $maxdev;
1032         my $devicetype = 'hd';
1033         my $path = '';
1034         if (drive_is_cdrom($drive)) {
1035               $devicetype = 'cd';
1036           } else {
1037               if ($drive->{file} =~ m|^/|) {
1038                   $path = $drive->{file};
1039               } else {
1040                   $path = PVE::Storage::path($storecfg, $drive->{file});
1041               }
1042
1043               if($path =~ m/^iscsi\:\/\//){
1044                  $devicetype = 'generic';
1045               }
1046               else {
1047                  $devicetype = 'block' if path_is_scsi($path);
1048               }
1049          }
1050
1051         if (!$conf->{scsihw} || $conf->{scsihw} eq 'lsi'){
1052             $device = "scsi-$devicetype,bus=scsihw$controller.0,scsi-id=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}" if !$conf->{scsihw} || $conf->{scsihw} eq 'lsi';
1053         } else {
1054             $device = "scsi-$devicetype,bus=scsihw$controller.0,channel=0,scsi-id=0,lun=$drive->{index},drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1055         }
1056
1057     } elsif ($drive->{interface} eq 'ide'){
1058         $maxdev = 2;
1059         my $controller = int($drive->{index} / $maxdev);
1060         my $unit = $drive->{index} % $maxdev;
1061         my $devicetype = ($drive->{media} && $drive->{media} eq 'cdrom') ? "cd" : "hd";
1062
1063         $device = "ide-$devicetype,bus=ide.$controller,unit=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1064     } elsif ($drive->{interface} eq 'sata'){
1065         my $controller = int($drive->{index} / $MAX_SATA_DISKS);
1066         my $unit = $drive->{index} % $MAX_SATA_DISKS;
1067         $device = "ide-drive,bus=ahci$controller.$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1068     } elsif ($drive->{interface} eq 'usb') {
1069         die "implement me";
1070         #  -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
1071     } else {
1072         die "unsupported interface type";
1073     }
1074
1075     $device .= ",bootindex=$drive->{bootindex}" if $drive->{bootindex};
1076
1077     return $device;
1078 }
1079
1080 sub print_drive_full {
1081     my ($storecfg, $vmid, $drive) = @_;
1082
1083     my $opts = '';
1084     foreach my $o (@qemu_drive_options) {
1085         next if $o eq 'bootindex';
1086         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1087     }
1088
1089     foreach my $o (qw(bps bps_rd bps_wr)) {
1090         my $v = $drive->{"m$o"};
1091         $opts .= ",$o=" . int($v*1024*1024) if $v;
1092     }
1093
1094     # use linux-aio by default (qemu default is threads)
1095     $opts .= ",aio=native" if !$drive->{aio};
1096
1097     my $path;
1098     my $volid = $drive->{file};
1099     if (drive_is_cdrom($drive)) {
1100         $path = get_iso_path($storecfg, $vmid, $volid);
1101     } else {
1102         if ($volid =~ m|^/|) {
1103             $path = $volid;
1104         } else {
1105             $path = PVE::Storage::path($storecfg, $volid);
1106         }
1107     }
1108
1109     my $pathinfo = $path ? "file=$path," : '';
1110
1111     return "${pathinfo}if=none,id=drive-$drive->{interface}$drive->{index}$opts";
1112 }
1113
1114 sub print_netdevice_full {
1115     my ($vmid, $conf, $net, $netid, $bridges) = @_;
1116
1117     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
1118
1119     my $device = $net->{model};
1120     if ($net->{model} eq 'virtio') {
1121          $device = 'virtio-net-pci';
1122      };
1123
1124     # qemu > 0.15 always try to boot from network - we disable that by
1125     # not loading the pxe rom file
1126     my $extra = ($bootorder !~ m/n/) ? "romfile=," : '';
1127     my $pciaddr = print_pci_addr("$netid", $bridges);
1128     my $tmpstr = "$device,${extra}mac=$net->{macaddr},netdev=$netid$pciaddr,id=$netid";
1129     $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
1130     return $tmpstr;
1131 }
1132
1133 sub print_netdev_full {
1134     my ($vmid, $conf, $net, $netid) = @_;
1135
1136     my $i = '';
1137     if ($netid =~ m/^net(\d+)$/) {
1138         $i = int($1);
1139     }
1140
1141     die "got strange net id '$i'\n" if $i >= ${MAX_NETS};
1142
1143     my $ifname = "tap${vmid}i$i";
1144
1145     # kvm uses TUNSETIFF ioctl, and that limits ifname length
1146     die "interface name '$ifname' is too long (max 15 character)\n"
1147         if length($ifname) >= 16;
1148
1149     my $vhostparam = '';
1150     $vhostparam = ',vhost=on' if $kernel_has_vhost_net && $net->{model} eq 'virtio';
1151
1152     my $vmname = $conf->{name} || "vm$vmid";
1153
1154     if ($net->{bridge}) {
1155         return "type=tap,id=$netid,ifname=${ifname},script=/var/lib/qemu-server/pve-bridge$vhostparam";
1156     } else {
1157         return "type=user,id=$netid,hostname=$vmname";
1158     }
1159 }
1160
1161 sub drive_is_cdrom {
1162     my ($drive) = @_;
1163
1164     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
1165
1166 }
1167
1168 sub parse_hostpci {
1169     my ($value) = @_;
1170
1171     return undef if !$value;
1172
1173     my $res = {};
1174
1175     if ($value =~ m/^[a-f0-9]{2}:[a-f0-9]{2}\.[a-f0-9]$/) {
1176        $res->{pciid} = $value;
1177     } else {
1178        return undef;
1179     }
1180
1181     return $res;
1182 }
1183
1184 # netX: e1000=XX:XX:XX:XX:XX:XX,bridge=vmbr0,rate=<mbps>
1185 sub parse_net {
1186     my ($data) = @_;
1187
1188     my $res = {};
1189
1190     foreach my $kvp (split(/,/, $data)) {
1191
1192         if ($kvp =~ m/^(ne2k_pci|e1000|rtl8139|pcnet|virtio|ne2k_isa|i82551|i82557b|i82559er)(=([0-9a-f]{2}(:[0-9a-f]{2}){5}))?$/i) {
1193             my $model = lc($1);
1194             my $mac = uc($3) || PVE::Tools::random_ether_addr();
1195             $res->{model} = $model;
1196             $res->{macaddr} = $mac;
1197         } elsif ($kvp =~ m/^bridge=(\S+)$/) {
1198             $res->{bridge} = $1;
1199         } elsif ($kvp =~ m/^rate=(\d+(\.\d+)?)$/) {
1200             $res->{rate} = $1;
1201         } elsif ($kvp =~ m/^tag=(\d+)$/) {
1202             $res->{tag} = $1;
1203         } else {
1204             return undef;
1205         }
1206
1207     }
1208
1209     return undef if !$res->{model};
1210
1211     return $res;
1212 }
1213
1214 sub print_net {
1215     my $net = shift;
1216
1217     my $res = "$net->{model}";
1218     $res .= "=$net->{macaddr}" if $net->{macaddr};
1219     $res .= ",bridge=$net->{bridge}" if $net->{bridge};
1220     $res .= ",rate=$net->{rate}" if $net->{rate};
1221     $res .= ",tag=$net->{tag}" if $net->{tag};
1222
1223     return $res;
1224 }
1225
1226 sub add_random_macs {
1227     my ($settings) = @_;
1228
1229     foreach my $opt (keys %$settings) {
1230         next if $opt !~ m/^net(\d+)$/;
1231         my $net = parse_net($settings->{$opt});
1232         next if !$net;
1233         $settings->{$opt} = print_net($net);
1234     }
1235 }
1236
1237 sub add_unused_volume {
1238     my ($config, $volid) = @_;
1239
1240     my $key;
1241     for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1242         my $test = "unused$ind";
1243         if (my $vid = $config->{$test}) {
1244             return if $vid eq $volid; # do not add duplicates
1245         } else {
1246             $key = $test;
1247         }
1248     }
1249
1250     die "To many unused volume - please delete them first.\n" if !$key;
1251
1252     $config->{$key} = $volid;
1253
1254     return $key;
1255 }
1256
1257 PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk);
1258 sub verify_bootdisk {
1259     my ($value, $noerr) = @_;
1260
1261     return $value if valid_drivename($value);
1262
1263     return undef if $noerr;
1264
1265     die "invalid boot disk '$value'\n";
1266 }
1267
1268 PVE::JSONSchema::register_format('pve-qm-net', \&verify_net);
1269 sub verify_net {
1270     my ($value, $noerr) = @_;
1271
1272     return $value if parse_net($value);
1273
1274     return undef if $noerr;
1275
1276     die "unable to parse network options\n";
1277 }
1278
1279 PVE::JSONSchema::register_format('pve-qm-drive', \&verify_drive);
1280 sub verify_drive {
1281     my ($value, $noerr) = @_;
1282
1283     return $value if parse_drive(undef, $value);
1284
1285     return undef if $noerr;
1286
1287     die "unable to parse drive options\n";
1288 }
1289
1290 PVE::JSONSchema::register_format('pve-qm-hostpci', \&verify_hostpci);
1291 sub verify_hostpci {
1292     my ($value, $noerr) = @_;
1293
1294     return $value if parse_hostpci($value);
1295
1296     return undef if $noerr;
1297
1298     die "unable to parse pci id\n";
1299 }
1300
1301 PVE::JSONSchema::register_format('pve-qm-watchdog', \&verify_watchdog);
1302 sub verify_watchdog {
1303     my ($value, $noerr) = @_;
1304
1305     return $value if parse_watchdog($value);
1306
1307     return undef if $noerr;
1308
1309     die "unable to parse watchdog options\n";
1310 }
1311
1312 sub parse_watchdog {
1313     my ($value) = @_;
1314
1315     return undef if !$value;
1316
1317     my $res = {};
1318
1319     foreach my $p (split(/,/, $value)) {
1320         next if $p =~ m/^\s*$/;
1321
1322         if ($p =~ m/^(model=)?(i6300esb|ib700)$/) {
1323             $res->{model} = $2;
1324         } elsif ($p =~ m/^(action=)?(reset|shutdown|poweroff|pause|debug|none)$/) {
1325             $res->{action} = $2;
1326         } else {
1327             return undef;
1328         }
1329     }
1330
1331     return $res;
1332 }
1333
1334 PVE::JSONSchema::register_format('pve-qm-startup', \&verify_startup);
1335 sub verify_startup {
1336     my ($value, $noerr) = @_;
1337
1338     return $value if parse_startup($value);
1339
1340     return undef if $noerr;
1341
1342     die "unable to parse startup options\n";
1343 }
1344
1345 sub parse_startup {
1346     my ($value) = @_;
1347
1348     return undef if !$value;
1349
1350     my $res = {};
1351
1352     foreach my $p (split(/,/, $value)) {
1353         next if $p =~ m/^\s*$/;
1354
1355         if ($p =~ m/^(order=)?(\d+)$/) {
1356             $res->{order} = $2;
1357         } elsif ($p =~ m/^up=(\d+)$/) {
1358             $res->{up} = $1;
1359         } elsif ($p =~ m/^down=(\d+)$/) {
1360             $res->{down} = $1;
1361         } else {
1362             return undef;
1363         }
1364     }
1365
1366     return $res;
1367 }
1368
1369 sub parse_usb_device {
1370     my ($value) = @_;
1371
1372     return undef if !$value;
1373
1374     my @dl = split(/,/, $value);
1375     my $found;
1376
1377     my $res = {};
1378     foreach my $v (@dl) {
1379         if ($v =~ m/^host=(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
1380             $found = 1;
1381             $res->{vendorid} = $2;
1382             $res->{productid} = $4;
1383         } elsif ($v =~ m/^host=(\d+)\-(\d+(\.\d+)*)$/) {
1384             $found = 1;
1385             $res->{hostbus} = $1;
1386             $res->{hostport} = $2;
1387         } else {
1388             return undef;
1389         }
1390     }
1391     return undef if !$found;
1392
1393     return $res;
1394 }
1395
1396 PVE::JSONSchema::register_format('pve-qm-usb-device', \&verify_usb_device);
1397 sub verify_usb_device {
1398     my ($value, $noerr) = @_;
1399
1400     return $value if parse_usb_device($value);
1401
1402     return undef if $noerr;
1403
1404     die "unable to parse usb device\n";
1405 }
1406
1407 # add JSON properties for create and set function
1408 sub json_config_properties {
1409     my $prop = shift;
1410
1411     foreach my $opt (keys %$confdesc) {
1412         next if $opt eq 'parent' || $opt eq 'snaptime' || $opt eq 'vmstate';
1413         $prop->{$opt} = $confdesc->{$opt};
1414     }
1415
1416     return $prop;
1417 }
1418
1419 sub check_type {
1420     my ($key, $value) = @_;
1421
1422     die "unknown setting '$key'\n" if !$confdesc->{$key};
1423
1424     my $type = $confdesc->{$key}->{type};
1425
1426     if (!defined($value)) {
1427         die "got undefined value\n";
1428     }
1429
1430     if ($value =~ m/[\n\r]/) {
1431         die "property contains a line feed\n";
1432     }
1433
1434     if ($type eq 'boolean') {
1435         return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1436         return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1437         die "type check ('boolean') failed - got '$value'\n";
1438     } elsif ($type eq 'integer') {
1439         return int($1) if $value =~ m/^(\d+)$/;
1440         die "type check ('integer') failed - got '$value'\n";
1441     } elsif ($type eq 'number') {
1442         return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1443         die "type check ('number') failed - got '$value'\n";
1444     } elsif ($type eq 'string') {
1445         if (my $fmt = $confdesc->{$key}->{format}) {
1446             if ($fmt eq 'pve-qm-drive') {
1447                 # special case - we need to pass $key to parse_drive()
1448                 my $drive = parse_drive($key, $value);
1449                 return $value if $drive;
1450                 die "unable to parse drive options\n";
1451             }
1452             PVE::JSONSchema::check_format($fmt, $value);
1453             return $value;
1454         }
1455         $value =~ s/^\"(.*)\"$/$1/;
1456         return $value;
1457     } else {
1458         die "internal error"
1459     }
1460 }
1461
1462 sub lock_config_full {
1463     my ($vmid, $timeout, $code, @param) = @_;
1464
1465     my $filename = config_file_lock($vmid);
1466
1467     my $res = lock_file($filename, $timeout, $code, @param);
1468
1469     die $@ if $@;
1470
1471     return $res;
1472 }
1473
1474 sub lock_config {
1475     my ($vmid, $code, @param) = @_;
1476
1477     return lock_config_full($vmid, 10, $code, @param);
1478 }
1479
1480 sub cfs_config_path {
1481     my ($vmid, $node) = @_;
1482
1483     $node = $nodename if !$node;
1484     return "nodes/$node/qemu-server/$vmid.conf";
1485 }
1486
1487 sub check_iommu_support{
1488     #fixme : need to check IOMMU support
1489     #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
1490
1491     my $iommu=1;
1492     return $iommu;
1493
1494 }
1495
1496 sub config_file {
1497     my ($vmid, $node) = @_;
1498
1499     my $cfspath = cfs_config_path($vmid, $node);
1500     return "/etc/pve/$cfspath";
1501 }
1502
1503 sub config_file_lock {
1504     my ($vmid) = @_;
1505
1506     return "$lock_dir/lock-$vmid.conf";
1507 }
1508
1509 sub touch_config {
1510     my ($vmid) = @_;
1511
1512     my $conf = config_file($vmid);
1513     utime undef, undef, $conf;
1514 }
1515
1516 sub destroy_vm {
1517     my ($storecfg, $vmid, $keep_empty_config) = @_;
1518
1519     my $conffile = config_file($vmid);
1520
1521     my $conf = load_config($vmid);
1522
1523     check_lock($conf);
1524
1525     # only remove disks owned by this VM
1526     foreach_drive($conf, sub {
1527         my ($ds, $drive) = @_;
1528
1529         return if drive_is_cdrom($drive);
1530
1531         my $volid = $drive->{file};
1532
1533         return if !$volid || $volid =~ m|^/|;
1534
1535         my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
1536         return if !$path || !$owner || ($owner != $vmid);
1537
1538         PVE::Storage::vdisk_free($storecfg, $volid);
1539     });
1540
1541     if ($keep_empty_config) {
1542         PVE::Tools::file_set_contents($conffile, "memory: 128\n");
1543     } else {
1544         unlink $conffile;
1545     }
1546
1547     # also remove unused disk
1548     eval {
1549         my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
1550
1551         eval {
1552             PVE::Storage::foreach_volid($dl, sub {
1553                 my ($volid, $sid, $volname, $d) = @_;
1554                 PVE::Storage::vdisk_free($storecfg, $volid);
1555             });
1556         };
1557         warn $@ if $@;
1558
1559     };
1560     warn $@ if $@;
1561 }
1562
1563 sub load_config {
1564     my ($vmid, $node) = @_;
1565
1566     my $cfspath = cfs_config_path($vmid, $node);
1567
1568     my $conf = PVE::Cluster::cfs_read_file($cfspath);
1569
1570     die "no such VM ('$vmid')\n" if !defined($conf);
1571
1572     return $conf;
1573 }
1574
1575 sub parse_vm_config {
1576     my ($filename, $raw) = @_;
1577
1578     return undef if !defined($raw);
1579
1580     my $res = {
1581         digest => Digest::SHA::sha1_hex($raw),
1582         snapshots => {},
1583     };
1584
1585     $filename =~ m|/qemu-server/(\d+)\.conf$|
1586         || die "got strange filename '$filename'";
1587
1588     my $vmid = $1;
1589
1590     my $conf = $res;
1591     my $descr = '';
1592
1593     my @lines = split(/\n/, $raw);
1594     foreach my $line (@lines) {
1595         next if $line =~ m/^\s*$/;
1596
1597         if ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
1598             my $snapname = $1;
1599             $conf->{description} = $descr if $descr;
1600             $descr = '';
1601             $conf = $res->{snapshots}->{$snapname} = {};
1602             next;
1603         }
1604
1605         if ($line =~ m/^\#(.*)\s*$/) {
1606             $descr .= PVE::Tools::decode_text($1) . "\n";
1607             next;
1608         }
1609
1610         if ($line =~ m/^(description):\s*(.*\S)\s*$/) {
1611             $descr .= PVE::Tools::decode_text($2);
1612         } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
1613             $conf->{snapstate} = $1;
1614         } elsif ($line =~ m/^(args):\s*(.*\S)\s*$/) {
1615             my $key = $1;
1616             my $value = $2;
1617             $conf->{$key} = $value;
1618         } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S+)\s*$/) {
1619             my $key = $1;
1620             my $value = $2;
1621             eval { $value = check_type($key, $value); };
1622             if ($@) {
1623                 warn "vm $vmid - unable to parse value of '$key' - $@";
1624             } else {
1625                 my $fmt = $confdesc->{$key}->{format};
1626                 if ($fmt && $fmt eq 'pve-qm-drive') {
1627                     my $v = parse_drive($key, $value);
1628                     if (my $volid = filename_to_volume_id($vmid, $v->{file}, $v->{media})) {
1629                         $v->{file} = $volid;
1630                         $value = print_drive($vmid, $v);
1631                     } else {
1632                         warn "vm $vmid - unable to parse value of '$key'\n";
1633                         next;
1634                     }
1635                 }
1636
1637                 if ($key eq 'cdrom') {
1638                     $conf->{ide2} = $value;
1639                 } else {
1640                     $conf->{$key} = $value;
1641                 }
1642             }
1643         }
1644     }
1645
1646     $conf->{description} = $descr if $descr;
1647
1648     delete $res->{snapstate}; # just to be sure
1649
1650     return $res;
1651 }
1652
1653 sub write_vm_config {
1654     my ($filename, $conf) = @_;
1655
1656     delete $conf->{snapstate}; # just to be sure
1657
1658     if ($conf->{cdrom}) {
1659         die "option ide2 conflicts with cdrom\n" if $conf->{ide2};
1660         $conf->{ide2} = $conf->{cdrom};
1661         delete $conf->{cdrom};
1662     }
1663
1664     # we do not use 'smp' any longer
1665     if ($conf->{sockets}) {
1666         delete $conf->{smp};
1667     } elsif ($conf->{smp}) {
1668         $conf->{sockets} = $conf->{smp};
1669         delete $conf->{cores};
1670         delete $conf->{smp};
1671     }
1672
1673     my $used_volids = {};
1674
1675     my $cleanup_config = sub {
1676         my ($cref) = @_;
1677
1678         foreach my $key (keys %$cref) {
1679             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots' ||
1680                 $key eq 'snapstate';
1681             my $value = $cref->{$key};
1682             eval { $value = check_type($key, $value); };
1683             die "unable to parse value of '$key' - $@" if $@;
1684
1685             $cref->{$key} = $value;
1686
1687             if (valid_drivename($key)) {
1688                 my $drive = parse_drive($key, $value);
1689                 $used_volids->{$drive->{file}} = 1 if $drive && $drive->{file};
1690             }
1691         }
1692     };
1693
1694     &$cleanup_config($conf);
1695     foreach my $snapname (keys %{$conf->{snapshots}}) {
1696         &$cleanup_config($conf->{snapshots}->{$snapname});
1697     }
1698
1699     # remove 'unusedX' settings if we re-add a volume
1700     foreach my $key (keys %$conf) {
1701         my $value = $conf->{$key};
1702         if ($key =~ m/^unused/ && $used_volids->{$value}) {
1703             delete $conf->{$key};
1704         }
1705     }
1706
1707     my $generate_raw_config = sub {
1708         my ($conf) = @_;
1709
1710         my $raw = '';
1711
1712         # add description as comment to top of file
1713         my $descr = $conf->{description} || '';
1714         foreach my $cl (split(/\n/, $descr)) {
1715             $raw .= '#' .  PVE::Tools::encode_text($cl) . "\n";
1716         }
1717
1718         foreach my $key (sort keys %$conf) {
1719             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots';
1720             $raw .= "$key: $conf->{$key}\n";
1721         }
1722         return $raw;
1723     };
1724
1725     my $raw = &$generate_raw_config($conf);
1726     foreach my $snapname (sort keys %{$conf->{snapshots}}) {
1727         $raw .= "\n[$snapname]\n";
1728         $raw .= &$generate_raw_config($conf->{snapshots}->{$snapname});
1729     }
1730
1731     return $raw;
1732 }
1733
1734 sub update_config_nolock {
1735     my ($vmid, $conf, $skiplock) = @_;
1736
1737     check_lock($conf) if !$skiplock;
1738
1739     my $cfspath = cfs_config_path($vmid);
1740
1741     PVE::Cluster::cfs_write_file($cfspath, $conf);
1742 }
1743
1744 sub update_config {
1745     my ($vmid, $conf, $skiplock) = @_;
1746
1747     lock_config($vmid, &update_config_nolock, $conf, $skiplock);
1748 }
1749
1750 sub load_defaults {
1751
1752     my $res = {};
1753
1754     # we use static defaults from our JSON schema configuration
1755     foreach my $key (keys %$confdesc) {
1756         if (defined(my $default = $confdesc->{$key}->{default})) {
1757             $res->{$key} = $default;
1758         }
1759     }
1760
1761     my $conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
1762     $res->{keyboard} = $conf->{keyboard} if $conf->{keyboard};
1763
1764     return $res;
1765 }
1766
1767 sub config_list {
1768     my $vmlist = PVE::Cluster::get_vmlist();
1769     my $res = {};
1770     return $res if !$vmlist || !$vmlist->{ids};
1771     my $ids = $vmlist->{ids};
1772
1773     foreach my $vmid (keys %$ids) {
1774         my $d = $ids->{$vmid};
1775         next if !$d->{node} || $d->{node} ne $nodename;
1776         next if !$d->{type} || $d->{type} ne 'qemu';
1777         $res->{$vmid}->{exists} = 1;
1778     }
1779     return $res;
1780 }
1781
1782 # test if VM uses local resources (to prevent migration)
1783 sub check_local_resources {
1784     my ($conf, $noerr) = @_;
1785
1786     my $loc_res = 0;
1787
1788     $loc_res = 1 if $conf->{hostusb}; # old syntax
1789     $loc_res = 1 if $conf->{hostpci}; # old syntax
1790
1791     foreach my $k (keys %$conf) {
1792         $loc_res = 1 if $k =~ m/^(usb|hostpci|serial|parallel)\d+$/;
1793     }
1794
1795     die "VM uses local resources\n" if $loc_res && !$noerr;
1796
1797     return $loc_res;
1798 }
1799
1800 # check is used storages are available on all nodes (use by migrate)
1801 sub check_storage_availability {
1802     my ($storecfg, $conf, $node) = @_;
1803
1804     foreach_drive($conf, sub {
1805         my ($ds, $drive) = @_;
1806
1807         my $volid = $drive->{file};
1808         return if !$volid;
1809
1810         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
1811         return if !$sid;
1812
1813         # check if storage is available on both nodes
1814         my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
1815         PVE::Storage::storage_check_node($storecfg, $sid, $node);
1816    });
1817 }
1818
1819 sub check_lock {
1820     my ($conf) = @_;
1821
1822     die "VM is locked ($conf->{lock})\n" if $conf->{lock};
1823 }
1824
1825 sub check_cmdline {
1826     my ($pidfile, $pid) = @_;
1827
1828     my $fh = IO::File->new("/proc/$pid/cmdline", "r");
1829     if (defined($fh)) {
1830         my $line = <$fh>;
1831         $fh->close;
1832         return undef if !$line;
1833         my @param = split(/\0/, $line);
1834
1835         my $cmd = $param[0];
1836         return if !$cmd || ($cmd !~ m|kvm$| && $cmd !~ m|qemu-system-x86_64$|);
1837
1838         for (my $i = 0; $i < scalar (@param); $i++) {
1839             my $p = $param[$i];
1840             next if !$p;
1841             if (($p eq '-pidfile') || ($p eq '--pidfile')) {
1842                 my $p = $param[$i+1];
1843                 return 1 if $p && ($p eq $pidfile);
1844                 return undef;
1845             }
1846         }
1847     }
1848     return undef;
1849 }
1850
1851 sub check_running {
1852     my ($vmid, $nocheck, $node) = @_;
1853
1854     my $filename = config_file($vmid, $node);
1855
1856     die "unable to find configuration file for VM $vmid - no such machine\n"
1857         if !$nocheck && ! -f $filename;
1858
1859     my $pidfile = pidfile_name($vmid);
1860
1861     if (my $fd = IO::File->new("<$pidfile")) {
1862         my $st = stat($fd);
1863         my $line = <$fd>;
1864         close($fd);
1865
1866         my $mtime = $st->mtime;
1867         if ($mtime > time()) {
1868             warn "file '$filename' modified in future\n";
1869         }
1870
1871         if ($line =~ m/^(\d+)$/) {
1872             my $pid = $1;
1873             if (check_cmdline($pidfile, $pid)) {
1874                 if (my $pinfo = PVE::ProcFSTools::check_process_running($pid)) {
1875                     return $pid;
1876                 }
1877             }
1878         }
1879     }
1880
1881     return undef;
1882 }
1883
1884 sub vzlist {
1885
1886     my $vzlist = config_list();
1887
1888     my $fd = IO::Dir->new($var_run_tmpdir) || return $vzlist;
1889
1890     while (defined(my $de = $fd->read)) {
1891         next if $de !~ m/^(\d+)\.pid$/;
1892         my $vmid = $1;
1893         next if !defined($vzlist->{$vmid});
1894         if (my $pid = check_running($vmid)) {
1895             $vzlist->{$vmid}->{pid} = $pid;
1896         }
1897     }
1898
1899     return $vzlist;
1900 }
1901
1902 sub disksize {
1903     my ($storecfg, $conf) = @_;
1904
1905     my $bootdisk = $conf->{bootdisk};
1906     return undef if !$bootdisk;
1907     return undef if !valid_drivename($bootdisk);
1908
1909     return undef if !$conf->{$bootdisk};
1910
1911     my $drive = parse_drive($bootdisk, $conf->{$bootdisk});
1912     return undef if !defined($drive);
1913
1914     return undef if drive_is_cdrom($drive);
1915
1916     my $volid = $drive->{file};
1917     return undef if !$volid;
1918
1919     return $drive->{size};
1920 }
1921
1922 my $last_proc_pid_stat;
1923
1924 # get VM status information
1925 # This must be fast and should not block ($full == false)
1926 # We only query KVM using QMP if $full == true (this can be slow)
1927 sub vmstatus {
1928     my ($opt_vmid, $full) = @_;
1929
1930     my $res = {};
1931
1932     my $storecfg = PVE::Storage::config();
1933
1934     my $list = vzlist();
1935     my ($uptime) = PVE::ProcFSTools::read_proc_uptime(1);
1936
1937     my $cpucount = $cpuinfo->{cpus} || 1;
1938
1939     foreach my $vmid (keys %$list) {
1940         next if $opt_vmid && ($vmid ne $opt_vmid);
1941
1942         my $cfspath = cfs_config_path($vmid);
1943         my $conf = PVE::Cluster::cfs_read_file($cfspath) || {};
1944
1945         my $d = {};
1946         $d->{pid} = $list->{$vmid}->{pid};
1947
1948         # fixme: better status?
1949         $d->{status} = $list->{$vmid}->{pid} ? 'running' : 'stopped';
1950
1951         my $size = disksize($storecfg, $conf);
1952         if (defined($size)) {
1953             $d->{disk} = 0; # no info available
1954             $d->{maxdisk} = $size;
1955         } else {
1956             $d->{disk} = 0;
1957             $d->{maxdisk} = 0;
1958         }
1959
1960         $d->{cpus} = ($conf->{sockets} || 1) * ($conf->{cores} || 1);
1961         $d->{cpus} = $cpucount if $d->{cpus} > $cpucount;
1962
1963         $d->{name} = $conf->{name} || "VM $vmid";
1964         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
1965
1966         if ($conf->{balloon}) {
1967             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
1968             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
1969         }
1970
1971         $d->{uptime} = 0;
1972         $d->{cpu} = 0;
1973         $d->{mem} = 0;
1974
1975         $d->{netout} = 0;
1976         $d->{netin} = 0;
1977
1978         $d->{diskread} = 0;
1979         $d->{diskwrite} = 0;
1980
1981         $d->{template} = is_template($conf);
1982
1983         $res->{$vmid} = $d;
1984     }
1985
1986     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
1987     foreach my $dev (keys %$netdev) {
1988         next if $dev !~ m/^tap([1-9]\d*)i/;
1989         my $vmid = $1;
1990         my $d = $res->{$vmid};
1991         next if !$d;
1992
1993         $d->{netout} += $netdev->{$dev}->{receive};
1994         $d->{netin} += $netdev->{$dev}->{transmit};
1995     }
1996
1997     my $ctime = gettimeofday;
1998
1999     foreach my $vmid (keys %$list) {
2000
2001         my $d = $res->{$vmid};
2002         my $pid = $d->{pid};
2003         next if !$pid;
2004
2005         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2006         next if !$pstat; # not running
2007
2008         my $used = $pstat->{utime} + $pstat->{stime};
2009
2010         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2011
2012         if ($pstat->{vsize}) {
2013             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2014         }
2015
2016         my $old = $last_proc_pid_stat->{$pid};
2017         if (!$old) {
2018             $last_proc_pid_stat->{$pid} = {
2019                 time => $ctime,
2020                 used => $used,
2021                 cpu => 0,
2022             };
2023             next;
2024         }
2025
2026         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2027
2028         if ($dtime > 1000) {
2029             my $dutime = $used -  $old->{used};
2030
2031             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2032             $last_proc_pid_stat->{$pid} = {
2033                 time => $ctime,
2034                 used => $used,
2035                 cpu => $d->{cpu},
2036             };
2037         } else {
2038             $d->{cpu} = $old->{cpu};
2039         }
2040     }
2041
2042     return $res if !$full;
2043
2044     my $qmpclient = PVE::QMPClient->new();
2045
2046     my $ballooncb = sub {
2047         my ($vmid, $resp) = @_;
2048
2049         my $info = $resp->{'return'};
2050         return if !$info->{max_mem};
2051
2052         my $d = $res->{$vmid};
2053
2054         # use memory assigned to VM
2055         $d->{maxmem} = $info->{max_mem};
2056         $d->{balloon} = $info->{actual};
2057
2058         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2059             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2060             $d->{freemem} = $info->{free_mem};
2061         }
2062
2063     };
2064
2065     my $blockstatscb = sub {
2066         my ($vmid, $resp) = @_;
2067         my $data = $resp->{'return'} || [];
2068         my $totalrdbytes = 0;
2069         my $totalwrbytes = 0;
2070         for my $blockstat (@$data) {
2071             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2072             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2073         }
2074         $res->{$vmid}->{diskread} = $totalrdbytes;
2075         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2076     };
2077
2078     my $statuscb = sub {
2079         my ($vmid, $resp) = @_;
2080
2081         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2082         # this fails if ballon driver is not loaded, so this must be
2083         # the last commnand (following command are aborted if this fails).
2084         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2085
2086         my $status = 'unknown';
2087         if (!defined($status = $resp->{'return'}->{status})) {
2088             warn "unable to get VM status\n";
2089             return;
2090         }
2091
2092         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2093     };
2094
2095     foreach my $vmid (keys %$list) {
2096         next if $opt_vmid && ($vmid ne $opt_vmid);
2097         next if !$res->{$vmid}->{pid}; # not running
2098         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2099     }
2100
2101     $qmpclient->queue_execute();
2102
2103     foreach my $vmid (keys %$list) {
2104         next if $opt_vmid && ($vmid ne $opt_vmid);
2105         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2106     }
2107
2108     return $res;
2109 }
2110
2111 sub foreach_drive {
2112     my ($conf, $func) = @_;
2113
2114     foreach my $ds (keys %$conf) {
2115         next if !valid_drivename($ds);
2116
2117         my $drive = parse_drive($ds, $conf->{$ds});
2118         next if !$drive;
2119
2120         &$func($ds, $drive);
2121     }
2122 }
2123
2124 sub foreach_volid {
2125     my ($conf, $func) = @_;
2126
2127     my $volhash = {};
2128
2129     my $test_volid = sub {
2130         my ($volid, $is_cdrom) = @_;
2131
2132         return if !$volid;
2133
2134         $volhash->{$volid} = $is_cdrom || 0;
2135     };
2136
2137     foreach_drive($conf, sub {
2138         my ($ds, $drive) = @_;
2139         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2140     });
2141
2142     foreach my $snapname (keys %{$conf->{snapshots}}) {
2143         my $snap = $conf->{snapshots}->{$snapname};
2144         &$test_volid($snap->{vmstate}, 0);
2145         foreach_drive($snap, sub {
2146             my ($ds, $drive) = @_;
2147             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2148         });
2149     }
2150
2151     foreach my $volid (keys %$volhash) {
2152         &$func($volid, $volhash->{$volid});
2153     }
2154 }
2155
2156 sub config_to_command {
2157     my ($storecfg, $vmid, $conf, $defaults) = @_;
2158
2159     my $cmd = [];
2160     my $globalFlags = [];
2161     my $machineFlags = [];
2162     my $rtcFlags = [];
2163     my $devices = [];
2164     my $pciaddr = '';
2165     my $bridges = {};
2166     my $kvmver = kvm_user_version();
2167     my $vernum = 0; # unknown
2168     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2169         $vernum = $1*1000000+$2*1000;
2170     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2171         $vernum = $1*1000000+$2*1000+$3;
2172     }
2173
2174     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2175
2176     my $have_ovz = -f '/proc/vz/vestat';
2177
2178     push @$cmd, '/usr/bin/kvm';
2179
2180     push @$cmd, '-id', $vmid;
2181
2182     my $use_virtio = 0;
2183
2184     my $qmpsocket = qmp_socket($vmid);
2185     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2186     push @$cmd, '-mon', "chardev=qmp,mode=control";
2187
2188     my $socket = vnc_socket($vmid);
2189     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2190
2191     push @$cmd, '-pidfile' , pidfile_name($vmid);
2192
2193     push @$cmd, '-daemonize';
2194
2195     push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg';
2196
2197     # enable absolute mouse coordinates (needed by vnc)
2198     my $tablet = defined($conf->{tablet}) ? $conf->{tablet} : $defaults->{tablet};
2199     push @$devices, '-device', 'usb-tablet,id=tablet,bus=ehci.0,port=6' if $tablet;
2200
2201     # host pci devices
2202     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2203           my $d = parse_hostpci($conf->{"hostpci$i"});
2204           next if !$d;
2205           $pciaddr = print_pci_addr("hostpci$i", $bridges);
2206           push @$devices, '-device', "pci-assign,host=$d->{pciid},id=hostpci$i$pciaddr";
2207     }
2208
2209     # usb devices
2210     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2211         my $d = parse_usb_device($conf->{"usb$i"});
2212         next if !$d;
2213         if ($d->{vendorid} && $d->{productid}) {
2214             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2215         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2216             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2217         }
2218     }
2219
2220     # serial devices
2221     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2222         if (my $path = $conf->{"serial$i"}) {
2223             die "no such serial device\n" if ! -c $path;
2224             push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2225             push @$devices, '-device', "isa-serial,chardev=serial$i";
2226         }
2227     }
2228
2229     # parallel devices
2230     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2231         if (my $path = $conf->{"parallel$i"}) {
2232             die "no such parallel device\n" if ! -c $path;
2233             push @$devices, '-chardev', "parport,id=parallel$i,path=$path";
2234             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2235         }
2236     }
2237
2238     my $vmname = $conf->{name} || "vm$vmid";
2239
2240     push @$cmd, '-name', $vmname;
2241
2242     my $sockets = 1;
2243     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2244     $sockets = $conf->{sockets} if  $conf->{sockets};
2245
2246     my $cores = $conf->{cores} || 1;
2247
2248     push @$cmd, '-smp', "sockets=$sockets,cores=$cores";
2249
2250     push @$cmd, '-cpu', $conf->{cpu} if $conf->{cpu};
2251
2252     push @$cmd, '-nodefaults';
2253
2254     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2255
2256     my $bootindex_hash = {};
2257     my $i = 1;
2258     foreach my $o (split(//, $bootorder)) {
2259         $bootindex_hash->{$o} = $i*100;
2260         $i++;
2261     }
2262
2263     push @$cmd, '-boot', "menu=on";
2264
2265     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2266
2267     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2268
2269     my $vga = $conf->{vga};
2270     if (!$vga) {
2271         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' || $conf->{ostype} eq 'win7' || $conf->{ostype} eq 'w2k8')) {
2272             $vga = 'std';
2273         } else {
2274             $vga = 'cirrus';
2275         }
2276     }
2277
2278     push @$cmd, '-vga', $vga if $vga; # for kvm 77 and later
2279
2280     # time drift fix
2281     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2282
2283     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2284     my $useLocaltime = $conf->{localtime};
2285
2286     if (my $ost = $conf->{ostype}) {
2287         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26
2288
2289         if ($ost =~ m/^w/) { # windows
2290             $useLocaltime = 1 if !defined($conf->{localtime});
2291
2292             # use time drift fix when acpi is enabled
2293             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2294                 $tdf = 1 if !defined($conf->{tdf});
2295             }
2296         }
2297
2298         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2299             $ost eq 'wvista') {
2300             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2301             push @$cmd, '-no-hpet';
2302         }
2303     }
2304
2305     push @$rtcFlags, 'driftfix=slew' if $tdf;
2306
2307     if ($nokvm) {
2308         push @$machineFlags, 'accel=tcg';
2309     } else {
2310         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2311     }
2312
2313     if ($conf->{startdate}) {
2314         push @$rtcFlags, "base=$conf->{startdate}";
2315     } elsif ($useLocaltime) {
2316         push @$rtcFlags, 'base=localtime';
2317     }
2318
2319     push @$cmd, '-S' if $conf->{freeze};
2320
2321     # set keyboard layout
2322     my $kb = $conf->{keyboard} || $defaults->{keyboard};
2323     push @$cmd, '-k', $kb if $kb;
2324
2325     # enable sound
2326     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
2327     #push @$cmd, '-soundhw', 'es1370';
2328     #push @$cmd, '-soundhw', $soundhw if $soundhw;
2329
2330     if($conf->{agent}) {
2331         my $qgasocket = qga_socket($vmid);
2332         my $pciaddr = print_pci_addr("qga0", $bridges);
2333         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
2334         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
2335         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
2336     }
2337
2338     # enable balloon by default, unless explicitly disabled
2339     if (!defined($conf->{balloon}) || $conf->{balloon}) {
2340         $pciaddr = print_pci_addr("balloon0", $bridges);
2341         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
2342     }
2343
2344     if ($conf->{watchdog}) {
2345         my $wdopts = parse_watchdog($conf->{watchdog});
2346         $pciaddr = print_pci_addr("watchdog", $bridges);
2347         my $watchdog = $wdopts->{model} || 'i6300esb';
2348         push @$devices, '-device', "$watchdog$pciaddr";
2349         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
2350     }
2351
2352     my $vollist = [];
2353     my $scsicontroller = {};
2354     my $ahcicontroller = {};
2355     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
2356
2357     foreach_drive($conf, sub {
2358         my ($ds, $drive) = @_;
2359
2360         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
2361             push @$vollist, $drive->{file};
2362         }
2363
2364         $use_virtio = 1 if $ds =~ m/^virtio/;
2365
2366         if (drive_is_cdrom ($drive)) {
2367             if ($bootindex_hash->{d}) {
2368                 $drive->{bootindex} = $bootindex_hash->{d};
2369                 $bootindex_hash->{d} += 1;
2370             }
2371         } else {
2372             if ($bootindex_hash->{c}) {
2373                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
2374                 $bootindex_hash->{c} += 1;
2375             }
2376         }
2377
2378         if ($drive->{interface} eq 'scsi') {
2379
2380             my $maxdev = ($scsihw ne 'lsi') ? 256 : 7;
2381             my $controller = int($drive->{index} / $maxdev);
2382             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
2383             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
2384             $scsicontroller->{$controller}=1;
2385         }
2386
2387         if ($drive->{interface} eq 'sata') {
2388            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
2389            $pciaddr = print_pci_addr("ahci$controller", $bridges);
2390            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
2391            $ahcicontroller->{$controller}=1;
2392         }
2393
2394         push @$devices, '-drive',print_drive_full($storecfg, $vmid, $drive);
2395         push @$devices, '-device',print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
2396     });
2397
2398     push @$cmd, '-m', $conf->{memory} || $defaults->{memory};
2399
2400     for (my $i = 0; $i < $MAX_NETS; $i++) {
2401          next if !$conf->{"net$i"};
2402          my $d = parse_net($conf->{"net$i"});
2403          next if !$d;
2404
2405          $use_virtio = 1 if $d->{model} eq 'virtio';
2406
2407          if ($bootindex_hash->{n}) {
2408             $d->{bootindex} = $bootindex_hash->{n};
2409             $bootindex_hash->{n} += 1;
2410          }
2411
2412          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
2413          push @$devices, '-netdev', $netdevfull;
2414
2415          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
2416          push @$devices, '-device', $netdevicefull;
2417     }
2418
2419     #bridges
2420     while (my ($k, $v) = each %$bridges) {
2421         $pciaddr = print_pci_addr("pci.$k");
2422         unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
2423     }
2424
2425
2426     # hack: virtio with fairsched is unreliable, so we do not use fairsched
2427     # when the VM uses virtio devices.
2428     if (!$use_virtio && $have_ovz) {
2429
2430         my $cpuunits = defined($conf->{cpuunits}) ?
2431             $conf->{cpuunits} : $defaults->{cpuunits};
2432
2433         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
2434
2435         # fixme: cpulimit is currently ignored
2436         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
2437     }
2438
2439     # add custom args
2440     if ($conf->{args}) {
2441         my $aa = PVE::Tools::split_args($conf->{args});
2442         push @$cmd, @$aa;
2443     }
2444
2445     push @$cmd, @$devices;
2446     push @$cmd, '-rtc', join(',', @$rtcFlags)
2447         if scalar(@$rtcFlags);
2448     push @$cmd, '-machine', join(',', @$machineFlags)
2449         if scalar(@$machineFlags);
2450     push @$cmd, '-global', join(',', @$globalFlags)
2451         if scalar(@$globalFlags);
2452
2453     return wantarray ? ($cmd, $vollist) : $cmd;
2454 }
2455
2456 sub vnc_socket {
2457     my ($vmid) = @_;
2458     return "${var_run_tmpdir}/$vmid.vnc";
2459 }
2460
2461 sub qmp_socket {
2462     my ($vmid) = @_;
2463     return "${var_run_tmpdir}/$vmid.qmp";
2464 }
2465
2466 sub qga_socket {
2467     my ($vmid) = @_;
2468     return "${var_run_tmpdir}/$vmid.qga";
2469 }
2470
2471 sub pidfile_name {
2472     my ($vmid) = @_;
2473     return "${var_run_tmpdir}/$vmid.pid";
2474 }
2475
2476 sub next_migrate_port {
2477
2478     for (my $p = 60000; $p < 60010; $p++) {
2479
2480         my $sock = IO::Socket::INET->new(Listen => 5,
2481                                          LocalAddr => 'localhost',
2482                                          LocalPort => $p,
2483                                          ReuseAddr => 1,
2484                                          Proto     => 0);
2485
2486         if ($sock) {
2487             close($sock);
2488             return $p;
2489         }
2490     }
2491
2492     die "unable to find free migration port";
2493 }
2494
2495 sub vm_devices_list {
2496     my ($vmid) = @_;
2497
2498     my $res = vm_mon_cmd($vmid, 'query-pci');
2499
2500     my $devices = {};
2501     foreach my $pcibus (@$res) {
2502         foreach my $device (@{$pcibus->{devices}}) {
2503             next if !$device->{'qdev_id'};
2504             $devices->{$device->{'qdev_id'}} = $device;
2505         }
2506     }
2507
2508     return $devices;
2509 }
2510
2511 sub vm_deviceplug {
2512     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
2513
2514     return 1 if !check_running($vmid);
2515
2516     if ($deviceid eq 'tablet') {
2517         my $devicefull = "usb-tablet,id=tablet,bus=ehci.0,port=6";
2518         qemu_deviceadd($vmid, $devicefull);
2519         return 1;
2520     }
2521
2522     return 1 if !$conf->{hotplug};
2523
2524     my $devices_list = vm_devices_list($vmid);
2525     return 1 if defined($devices_list->{$deviceid});
2526
2527     qemu_bridgeadd($storecfg, $conf, $vmid, $deviceid); #add bridge if we need it for the device
2528
2529     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2530         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2531         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2532         qemu_deviceadd($vmid, $devicefull);
2533         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2534            qemu_drivedel($vmid, $deviceid);
2535            return undef;
2536         }
2537     }
2538
2539     if ($deviceid =~ m/^(scsihw)(\d+)$/) {
2540         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
2541         my $pciaddr = print_pci_addr($deviceid);
2542         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
2543         qemu_deviceadd($vmid, $devicefull);
2544         return undef if(!qemu_deviceaddverify($vmid, $deviceid));
2545     }
2546
2547     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2548         return 1 if ($conf->{scsihw} && $conf->{scsihw} ne 'lsi'); #virtio-scsi not yet support hotplug
2549         return undef if !qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
2550         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2551         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2552         if(!qemu_deviceadd($vmid, $devicefull)) {
2553            qemu_drivedel($vmid, $deviceid);
2554            return undef;
2555         }
2556     }
2557
2558     if ($deviceid =~ m/^(net)(\d+)$/) {
2559         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
2560         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
2561         qemu_deviceadd($vmid, $netdevicefull);
2562         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2563            qemu_netdevdel($vmid, $deviceid);
2564            return undef;
2565         }
2566     }
2567
2568     if ($deviceid =~ m/^(pci\.)(\d+)$/) {
2569         my $bridgeid = $2;
2570         my $pciaddr = print_pci_addr($deviceid);
2571         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
2572         qemu_deviceadd($vmid, $devicefull);
2573         return undef if !qemu_deviceaddverify($vmid, $deviceid);
2574     }
2575
2576     return 1;
2577 }
2578
2579 sub vm_deviceunplug {
2580     my ($vmid, $conf, $deviceid) = @_;
2581
2582     return 1 if !check_running ($vmid);
2583
2584     if ($deviceid eq 'tablet') {
2585         qemu_devicedel($vmid, $deviceid);
2586         return 1;
2587     }
2588
2589     return 1 if!$conf->{hotplug};
2590
2591     my $devices_list = vm_devices_list($vmid);
2592     return 1 if !defined($devices_list->{$deviceid});
2593
2594     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
2595
2596     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2597         return undef if !qemu_drivedel($vmid, $deviceid);
2598         qemu_devicedel($vmid, $deviceid);
2599         return undef if !qemu_devicedelverify($vmid, $deviceid);
2600     }
2601
2602     if ($deviceid =~ m/^(lsi)(\d+)$/) {
2603         return undef if !qemu_devicedel($vmid, $deviceid);
2604     }
2605
2606     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2607         return undef if !qemu_devicedel($vmid, $deviceid);
2608         return undef if !qemu_drivedel($vmid, $deviceid);
2609     }
2610
2611     if ($deviceid =~ m/^(net)(\d+)$/) {
2612         return undef if !qemu_netdevdel($vmid, $deviceid);
2613         qemu_devicedel($vmid, $deviceid);
2614         return undef if !qemu_devicedelverify($vmid, $deviceid);
2615     }
2616
2617     return 1;
2618 }
2619
2620 sub qemu_deviceadd {
2621     my ($vmid, $devicefull) = @_;
2622
2623     my $ret = vm_human_monitor_command($vmid, "device_add $devicefull");
2624     $ret =~ s/^\s+//;
2625     # Otherwise, if the command succeeds, no output is sent. So any non-empty string shows an error
2626     return 1 if $ret eq "";
2627     syslog("err", "error on hotplug device : $ret");
2628     return undef;
2629
2630 }
2631
2632 sub qemu_devicedel {
2633     my($vmid, $deviceid) = @_;
2634     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
2635     return 1;
2636 }
2637
2638 sub qemu_driveadd {
2639     my($storecfg, $vmid, $device) = @_;
2640
2641     my $drive = print_drive_full($storecfg, $vmid, $device);
2642     my $ret = vm_human_monitor_command($vmid, "drive_add auto $drive");
2643     # If the command succeeds qemu prints: "OK"
2644     if ($ret !~ m/OK/s) {
2645         syslog("err", "adding drive failed: $ret");
2646         return undef;
2647     }
2648     return 1;
2649 }
2650
2651 sub qemu_drivedel {
2652     my($vmid, $deviceid) = @_;
2653
2654     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
2655     $ret =~ s/^\s+//;
2656     if ($ret =~ m/Device \'.*?\' not found/s) {
2657         # NB: device not found errors mean the drive was auto-deleted and we ignore the error
2658     }
2659     elsif ($ret ne "") {
2660       syslog("err", "deleting drive $deviceid failed : $ret");
2661       return undef;
2662     }
2663     return 1;
2664 }
2665
2666 sub qemu_deviceaddverify {
2667     my ($vmid,$deviceid) = @_;
2668
2669     for (my $i = 0; $i <= 5; $i++) {
2670          my $devices_list = vm_devices_list($vmid);
2671          return 1 if defined($devices_list->{$deviceid});
2672          sleep 1;
2673     }
2674     syslog("err", "error on hotplug device $deviceid");
2675     return undef;
2676 }
2677
2678
2679 sub qemu_devicedelverify {
2680     my ($vmid,$deviceid) = @_;
2681
2682     #need to verify the device is correctly remove as device_del is async and empty return is not reliable
2683     for (my $i = 0; $i <= 5; $i++) {
2684          my $devices_list = vm_devices_list($vmid);
2685          return 1 if !defined($devices_list->{$deviceid});
2686          sleep 1;
2687     }
2688     syslog("err", "error on hot-unplugging device $deviceid");
2689     return undef;
2690 }
2691
2692 sub qemu_findorcreatescsihw {
2693     my ($storecfg, $conf, $vmid, $device) = @_;
2694
2695     my $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
2696     my $controller = int($device->{index} / $maxdev);
2697     my $scsihwid="scsihw$controller";
2698     my $devices_list = vm_devices_list($vmid);
2699
2700     if(!defined($devices_list->{$scsihwid})) {
2701        return undef if !vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
2702     }
2703     return 1;
2704 }
2705
2706 sub qemu_bridgeadd {
2707     my ($storecfg, $conf, $vmid, $device) = @_;
2708
2709     my $bridges = {};
2710     my $bridgeid = undef;
2711     print_pci_addr($device, $bridges);
2712
2713     while (my ($k, $v) = each %$bridges) {
2714         $bridgeid = $k;
2715     }
2716     return if $bridgeid < 1;
2717     my $bridge = "pci.$bridgeid";
2718     my $devices_list = vm_devices_list($vmid);
2719
2720     if(!defined($devices_list->{$bridge})) {
2721         return undef if !vm_deviceplug($storecfg, $conf, $vmid, $bridge);
2722     }
2723     return 1;
2724 }
2725
2726 sub qemu_netdevadd {
2727     my ($vmid, $conf, $device, $deviceid) = @_;
2728
2729     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
2730     my $ret = vm_human_monitor_command($vmid, "netdev_add $netdev");
2731     $ret =~ s/^\s+//;
2732
2733     #if the command succeeds, no output is sent. So any non-empty string shows an error
2734     return 1 if $ret eq "";
2735     syslog("err", "adding netdev failed: $ret");
2736     return undef;
2737 }
2738
2739 sub qemu_netdevdel {
2740     my ($vmid, $deviceid) = @_;
2741
2742     my $ret = vm_human_monitor_command($vmid, "netdev_del $deviceid");
2743     $ret =~ s/^\s+//;
2744     #if the command succeeds, no output is sent. So any non-empty string shows an error
2745     return 1 if $ret eq "";
2746     syslog("err", "deleting netdev failed: $ret");
2747     return undef;
2748 }
2749
2750 sub qemu_block_set_io_throttle {
2751     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
2752
2753     return if !check_running($vmid) ;
2754
2755     $bps = 0 if !$bps;
2756     $bps_rd = 0 if !$bps_rd;
2757     $bps_wr = 0 if !$bps_wr;
2758     $iops = 0 if !$iops;
2759     $iops_rd = 0 if !$iops_rd;
2760     $iops_wr = 0 if !$iops_wr;
2761
2762     vm_mon_cmd($vmid, "block_set_io_throttle", device => $deviceid, bps => int($bps), bps_rd => int($bps_rd), bps_wr => int($bps_wr), iops => int($iops), iops_rd => int($iops_rd), iops_wr => int($iops_wr));
2763
2764 }
2765
2766 # old code, only used to shutdown old VM after update
2767 sub __read_avail {
2768     my ($fh, $timeout) = @_;
2769
2770     my $sel = new IO::Select;
2771     $sel->add($fh);
2772
2773     my $res = '';
2774     my $buf;
2775
2776     my @ready;
2777     while (scalar (@ready = $sel->can_read($timeout))) {
2778         my $count;
2779         if ($count = $fh->sysread($buf, 8192)) {
2780             if ($buf =~ /^(.*)\(qemu\) $/s) {
2781                 $res .= $1;
2782                 last;
2783             } else {
2784                 $res .= $buf;
2785             }
2786         } else {
2787             if (!defined($count)) {
2788                 die "$!\n";
2789             }
2790             last;
2791         }
2792     }
2793
2794     die "monitor read timeout\n" if !scalar(@ready);
2795
2796     return $res;
2797 }
2798
2799 # old code, only used to shutdown old VM after update
2800 sub vm_monitor_command {
2801     my ($vmid, $cmdstr, $nocheck) = @_;
2802
2803     my $res;
2804
2805     eval {
2806         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
2807
2808         my $sname = "${var_run_tmpdir}/$vmid.mon";
2809
2810         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
2811             die "unable to connect to VM $vmid socket - $!\n";
2812
2813         my $timeout = 3;
2814
2815         # hack: migrate sometime blocks the monitor (when migrate_downtime
2816         # is set)
2817         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2818             $timeout = 60*60; # 1 hour
2819         }
2820
2821         # read banner;
2822         my $data = __read_avail($sock, $timeout);
2823
2824         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
2825             die "got unexpected qemu monitor banner\n";
2826         }
2827
2828         my $sel = new IO::Select;
2829         $sel->add($sock);
2830
2831         if (!scalar(my @ready = $sel->can_write($timeout))) {
2832             die "monitor write error - timeout";
2833         }
2834
2835         my $fullcmd = "$cmdstr\r";
2836
2837         # syslog('info', "VM $vmid monitor command: $cmdstr");
2838
2839         my $b;
2840         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
2841             die "monitor write error - $!";
2842         }
2843
2844         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
2845
2846         $timeout = 20;
2847
2848         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2849             $timeout = 60*60; # 1 hour
2850         } elsif ($cmdstr =~ m/^(eject|change)/) {
2851             $timeout = 60; # note: cdrom mount command is slow
2852         }
2853         if ($res = __read_avail($sock, $timeout)) {
2854
2855             my @lines = split("\r?\n", $res);
2856
2857             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
2858
2859             $res = join("\n", @lines);
2860             $res .= "\n";
2861         }
2862     };
2863
2864     my $err = $@;
2865
2866     if ($err) {
2867         syslog("err", "VM $vmid monitor command failed - $err");
2868         die $err;
2869     }
2870
2871     return $res;
2872 }
2873
2874 sub qemu_block_resize {
2875     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
2876
2877     my $running = check_running($vmid);
2878
2879     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
2880
2881     return if !$running;
2882
2883     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
2884
2885 }
2886
2887 sub qemu_volume_snapshot {
2888     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2889
2890     my $running = check_running($vmid);
2891
2892     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
2893
2894     return if !$running;
2895
2896     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
2897
2898 }
2899
2900 sub qemu_volume_snapshot_delete {
2901     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2902
2903     my $running = check_running($vmid);
2904
2905     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
2906
2907     return if !$running;
2908
2909     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
2910 }
2911
2912 sub qga_freezefs {
2913     my ($vmid) = @_;
2914
2915     #need to impplement call to qemu-ga
2916 }
2917
2918 sub qga_unfreezefs {
2919     my ($vmid) = @_;
2920
2921     #need to impplement call to qemu-ga
2922 }
2923
2924 sub vm_start {
2925     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused) = @_;
2926
2927     lock_config($vmid, sub {
2928         my $conf = load_config($vmid, $migratedfrom);
2929
2930         die "you can't start a vm if it's a template\n" if is_template($conf);
2931
2932         check_lock($conf) if !$skiplock;
2933
2934         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
2935
2936         my $defaults = load_defaults();
2937
2938         # set environment variable useful inside network script
2939         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
2940
2941         my ($cmd, $vollist) = config_to_command($storecfg, $vmid, $conf, $defaults);
2942
2943         my $migrate_port = 0;
2944
2945         if ($statefile) {
2946             if ($statefile eq 'tcp') {
2947                 $migrate_port = next_migrate_port();
2948                 my $migrate_uri = "tcp:localhost:${migrate_port}";
2949                 push @$cmd, '-incoming', $migrate_uri;
2950                 push @$cmd, '-S';
2951             } else {
2952                 push @$cmd, '-loadstate', $statefile;
2953             }
2954         } elsif ($paused) {
2955             push @$cmd, '-S';
2956         }
2957
2958         # host pci devices
2959         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2960           my $d = parse_hostpci($conf->{"hostpci$i"});
2961           next if !$d;
2962           my $info = pci_device_info("0000:$d->{pciid}");
2963           die "IOMMU not present\n" if !check_iommu_support();
2964           die "no pci device info for device '$d->{pciid}'\n" if !$info;
2965           die "can't unbind pci device '$d->{pciid}'\n" if !pci_dev_bind_to_stub($info);
2966           die "can't reset pci device '$d->{pciid}'\n" if !pci_dev_reset($info);
2967         }
2968
2969         PVE::Storage::activate_volumes($storecfg, $vollist);
2970
2971         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
2972                     umask => 0077); };
2973         my $err = $@;
2974         die "start failed: $err" if $err;
2975
2976         print "migration listens on port $migrate_port\n" if $migrate_port;
2977
2978         if ($statefile && $statefile ne 'tcp')  {
2979             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
2980             warn $@ if $@;
2981         }
2982
2983         if($migratedfrom) {
2984             my $capabilities = {};
2985             $capabilities->{capability} =  "xbzrle";
2986             $capabilities->{state} = JSON::true;
2987             eval { vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => [$capabilities]); };
2988         }
2989         else{
2990
2991             if (!defined($conf->{balloon}) || $conf->{balloon}) {
2992                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
2993                     if $conf->{balloon};
2994                 vm_mon_cmd_nocheck($vmid, 'qom-set',
2995                             path => "machine/peripheral/balloon0",
2996                             property => "guest-stats-polling-interval",
2997                             value => 2);
2998             }
2999         }
3000     });
3001 }
3002
3003 sub vm_mon_cmd {
3004     my ($vmid, $execute, %params) = @_;
3005
3006     my $cmd = { execute => $execute, arguments => \%params };
3007     vm_qmp_command($vmid, $cmd);
3008 }
3009
3010 sub vm_mon_cmd_nocheck {
3011     my ($vmid, $execute, %params) = @_;
3012
3013     my $cmd = { execute => $execute, arguments => \%params };
3014     vm_qmp_command($vmid, $cmd, 1);
3015 }
3016
3017 sub vm_qmp_command {
3018     my ($vmid, $cmd, $nocheck) = @_;
3019
3020     my $res;
3021
3022     my $timeout;
3023     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
3024         $timeout = $cmd->{arguments}->{timeout};
3025         delete $cmd->{arguments}->{timeout};
3026     }
3027
3028     eval {
3029         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3030         my $sname = qmp_socket($vmid);
3031         if (-e $sname) {
3032             my $qmpclient = PVE::QMPClient->new();
3033
3034             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
3035         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
3036             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
3037                 if scalar(%{$cmd->{arguments}});
3038             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
3039         } else {
3040             die "unable to open monitor socket\n";
3041         }
3042     };
3043     if (my $err = $@) {
3044         syslog("err", "VM $vmid qmp command failed - $err");
3045         die $err;
3046     }
3047
3048     return $res;
3049 }
3050
3051 sub vm_human_monitor_command {
3052     my ($vmid, $cmdline) = @_;
3053
3054     my $res;
3055
3056     my $cmd = {
3057         execute => 'human-monitor-command',
3058         arguments => { 'command-line' => $cmdline},
3059     };
3060
3061     return vm_qmp_command($vmid, $cmd);
3062 }
3063
3064 sub vm_commandline {
3065     my ($storecfg, $vmid) = @_;
3066
3067     my $conf = load_config($vmid);
3068
3069     my $defaults = load_defaults();
3070
3071     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
3072
3073     return join(' ', @$cmd);
3074 }
3075
3076 sub vm_reset {
3077     my ($vmid, $skiplock) = @_;
3078
3079     lock_config($vmid, sub {
3080
3081         my $conf = load_config($vmid);
3082
3083         check_lock($conf) if !$skiplock;
3084
3085         vm_mon_cmd($vmid, "system_reset");
3086     });
3087 }
3088
3089 sub get_vm_volumes {
3090     my ($conf) = @_;
3091
3092     my $vollist = [];
3093     foreach_volid($conf, sub {
3094         my ($volid, $is_cdrom) = @_;
3095
3096         return if $volid =~ m|^/|;
3097
3098         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
3099         return if !$sid;
3100
3101         push @$vollist, $volid;
3102     });
3103
3104     return $vollist;
3105 }
3106
3107 sub vm_stop_cleanup {
3108     my ($storecfg, $vmid, $conf, $keepActive) = @_;
3109
3110     eval {
3111         fairsched_rmnod($vmid); # try to destroy group
3112
3113         if (!$keepActive) {
3114             my $vollist = get_vm_volumes($conf);
3115             PVE::Storage::deactivate_volumes($storecfg, $vollist);
3116         }
3117
3118         foreach my $ext (qw(mon qmp pid vnc qga)) {
3119             unlink "/var/run/qemu-server/${vmid}.$ext";
3120         }
3121     };
3122     warn $@ if $@; # avoid errors - just warn
3123 }
3124
3125 # Note: use $nockeck to skip tests if VM configuration file exists.
3126 # We need that when migration VMs to other nodes (files already moved)
3127 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
3128 sub vm_stop {
3129     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
3130
3131     $force = 1 if !defined($force) && !$shutdown;
3132
3133     if ($migratedfrom){
3134         my $pid = check_running($vmid, $nocheck, $migratedfrom);
3135         kill 15, $pid if $pid;
3136         my $conf = load_config($vmid, $migratedfrom);
3137         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive);
3138         return;
3139     }
3140
3141     lock_config($vmid, sub {
3142
3143         my $pid = check_running($vmid, $nocheck);
3144         return if !$pid;
3145
3146         my $conf;
3147         if (!$nocheck) {
3148             $conf = load_config($vmid);
3149             check_lock($conf) if !$skiplock;
3150             if (!defined($timeout) && $shutdown && $conf->{startup}) {
3151                 my $opts = parse_startup($conf->{startup});
3152                 $timeout = $opts->{down} if $opts->{down};
3153             }
3154         }
3155
3156         $timeout = 60 if !defined($timeout);
3157
3158         eval {
3159             if ($shutdown) {
3160                 $nocheck ? vm_mon_cmd_nocheck($vmid, "system_powerdown") : vm_mon_cmd($vmid, "system_powerdown");
3161
3162             } else {
3163                 $nocheck ? vm_mon_cmd_nocheck($vmid, "quit") : vm_mon_cmd($vmid, "quit");
3164             }
3165         };
3166         my $err = $@;
3167
3168         if (!$err) {
3169             my $count = 0;
3170             while (($count < $timeout) && check_running($vmid, $nocheck)) {
3171                 $count++;
3172                 sleep 1;
3173             }
3174
3175             if ($count >= $timeout) {
3176                 if ($force) {
3177                     warn "VM still running - terminating now with SIGTERM\n";
3178                     kill 15, $pid;
3179                 } else {
3180                     die "VM quit/powerdown failed - got timeout\n";
3181                 }
3182             } else {
3183                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3184                 return;
3185             }
3186         } else {
3187             if ($force) {
3188                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
3189                 kill 15, $pid;
3190             } else {
3191                 die "VM quit/powerdown failed\n";
3192             }
3193         }
3194
3195         # wait again
3196         $timeout = 10;
3197
3198         my $count = 0;
3199         while (($count < $timeout) && check_running($vmid, $nocheck)) {
3200             $count++;
3201             sleep 1;
3202         }
3203
3204         if ($count >= $timeout) {
3205             warn "VM still running - terminating now with SIGKILL\n";
3206             kill 9, $pid;
3207             sleep 1;
3208         }
3209
3210         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3211    });
3212 }
3213
3214 sub vm_suspend {
3215     my ($vmid, $skiplock) = @_;
3216
3217     lock_config($vmid, sub {
3218
3219         my $conf = load_config($vmid);
3220
3221         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3222
3223         vm_mon_cmd($vmid, "stop");
3224     });
3225 }
3226
3227 sub vm_resume {
3228     my ($vmid, $skiplock) = @_;
3229
3230     lock_config($vmid, sub {
3231
3232         my $conf = load_config($vmid);
3233
3234         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3235
3236         vm_mon_cmd($vmid, "cont");
3237     });
3238 }
3239
3240 sub vm_sendkey {
3241     my ($vmid, $skiplock, $key) = @_;
3242
3243     lock_config($vmid, sub {
3244
3245         my $conf = load_config($vmid);
3246
3247         # there is no qmp command, so we use the human monitor command
3248         vm_human_monitor_command($vmid, "sendkey $key");
3249     });
3250 }
3251
3252 sub vm_destroy {
3253     my ($storecfg, $vmid, $skiplock) = @_;
3254
3255     lock_config($vmid, sub {
3256
3257         my $conf = load_config($vmid);
3258
3259         check_lock($conf) if !$skiplock;
3260
3261         if (!check_running($vmid)) {
3262             fairsched_rmnod($vmid); # try to destroy group
3263             destroy_vm($storecfg, $vmid);
3264         } else {
3265             die "VM $vmid is running - destroy failed\n";
3266         }
3267     });
3268 }
3269
3270 # pci helpers
3271
3272 sub file_write {
3273     my ($filename, $buf) = @_;
3274
3275     my $fh = IO::File->new($filename, "w");
3276     return undef if !$fh;
3277
3278     my $res = print $fh $buf;
3279
3280     $fh->close();
3281
3282     return $res;
3283 }
3284
3285 sub pci_device_info {
3286     my ($name) = @_;
3287
3288     my $res;
3289
3290     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
3291     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
3292
3293     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
3294     return undef if !defined($irq) || $irq !~ m/^\d+$/;
3295
3296     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
3297     return undef if !defined($vendor) || $vendor !~ s/^0x//;
3298
3299     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
3300     return undef if !defined($product) || $product !~ s/^0x//;
3301
3302     $res = {
3303         name => $name,
3304         vendor => $vendor,
3305         product => $product,
3306         domain => $domain,
3307         bus => $bus,
3308         slot => $slot,
3309         func => $func,
3310         irq => $irq,
3311         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
3312     };
3313
3314     return $res;
3315 }
3316
3317 sub pci_dev_reset {
3318     my ($dev) = @_;
3319
3320     my $name = $dev->{name};
3321
3322     my $fn = "$pcisysfs/devices/$name/reset";
3323
3324     return file_write($fn, "1");
3325 }
3326
3327 sub pci_dev_bind_to_stub {
3328     my ($dev) = @_;
3329
3330     my $name = $dev->{name};
3331
3332     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
3333     return 1 if -d $testdir;
3334
3335     my $data = "$dev->{vendor} $dev->{product}";
3336     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
3337
3338     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3339     if (!file_write($fn, $name)) {
3340         return undef if -f $fn;
3341     }
3342
3343     $fn = "$pcisysfs/drivers/pci-stub/bind";
3344     if (! -d $testdir) {
3345         return undef if !file_write($fn, $name);
3346     }
3347
3348     return -d $testdir;
3349 }
3350
3351 sub print_pci_addr {
3352     my ($id, $bridges) = @_;
3353
3354     my $res = '';
3355     my $devices = {
3356         #addr1 : ide,parallel,serial (motherboard)
3357         #addr2 : first videocard
3358         balloon0 => { bus => 0, addr => 3 },
3359         watchdog => { bus => 0, addr => 4 },
3360         scsihw0 => { bus => 0, addr => 5 },
3361         scsihw1 => { bus => 0, addr => 6 },
3362         ahci0 => { bus => 0, addr => 7 },
3363         qga0 => { bus => 0, addr => 8 },
3364         virtio0 => { bus => 0, addr => 10 },
3365         virtio1 => { bus => 0, addr => 11 },
3366         virtio2 => { bus => 0, addr => 12 },
3367         virtio3 => { bus => 0, addr => 13 },
3368         virtio4 => { bus => 0, addr => 14 },
3369         virtio5 => { bus => 0, addr => 15 },
3370         hostpci0 => { bus => 0, addr => 16 },
3371         hostpci1 => { bus => 0, addr => 17 },
3372         net0 => { bus => 0, addr => 18 },
3373         net1 => { bus => 0, addr => 19 },
3374         net2 => { bus => 0, addr => 20 },
3375         net3 => { bus => 0, addr => 21 },
3376         net4 => { bus => 0, addr => 22 },
3377         net5 => { bus => 0, addr => 23 },
3378         #addr29 : usb-host (pve-usb.cfg)
3379         'pci.1' => { bus => 0, addr => 30 },
3380         'pci.2' => { bus => 0, addr => 31 },
3381         'net6' => { bus => 1, addr => 1 },
3382         'net7' => { bus => 1, addr => 2 },
3383         'net8' => { bus => 1, addr => 3 },
3384         'net9' => { bus => 1, addr => 4 },
3385         'net10' => { bus => 1, addr => 5 },
3386         'net11' => { bus => 1, addr => 6 },
3387         'net12' => { bus => 1, addr => 7 },
3388         'net13' => { bus => 1, addr => 8 },
3389         'net14' => { bus => 1, addr => 9 },
3390         'net15' => { bus => 1, addr => 10 },
3391         'net16' => { bus => 1, addr => 11 },
3392         'net17' => { bus => 1, addr => 12 },
3393         'net18' => { bus => 1, addr => 13 },
3394         'net19' => { bus => 1, addr => 14 },
3395         'net20' => { bus => 1, addr => 15 },
3396         'net21' => { bus => 1, addr => 16 },
3397         'net22' => { bus => 1, addr => 17 },
3398         'net23' => { bus => 1, addr => 18 },
3399         'net24' => { bus => 1, addr => 19 },
3400         'net25' => { bus => 1, addr => 20 },
3401         'net26' => { bus => 1, addr => 21 },
3402         'net27' => { bus => 1, addr => 22 },
3403         'net28' => { bus => 1, addr => 23 },
3404         'net29' => { bus => 1, addr => 24 },
3405         'net30' => { bus => 1, addr => 25 },
3406         'net31' => { bus => 1, addr => 26 },
3407         'virtio6' => { bus => 2, addr => 1 },
3408         'virtio7' => { bus => 2, addr => 2 },
3409         'virtio8' => { bus => 2, addr => 3 },
3410         'virtio9' => { bus => 2, addr => 4 },
3411         'virtio10' => { bus => 2, addr => 5 },
3412         'virtio11' => { bus => 2, addr => 6 },
3413         'virtio12' => { bus => 2, addr => 7 },
3414         'virtio13' => { bus => 2, addr => 8 },
3415         'virtio14' => { bus => 2, addr => 9 },
3416         'virtio15' => { bus => 2, addr => 10 },
3417     };
3418
3419     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3420            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3421            my $bus = $devices->{$id}->{bus};
3422            $res = ",bus=pci.$bus,addr=$addr";
3423            $bridges->{$bus} = 1 if $bridges;
3424     }
3425     return $res;
3426
3427 }
3428
3429 # vzdump restore implementaion
3430
3431 sub tar_archive_read_firstfile {
3432     my $archive = shift;
3433
3434     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
3435
3436     # try to detect archive type first
3437     my $pid = open (TMP, "tar tf '$archive'|") ||
3438         die "unable to open file '$archive'\n";
3439     my $firstfile = <TMP>;
3440     kill 15, $pid;
3441     close TMP;
3442
3443     die "ERROR: archive contaions no data\n" if !$firstfile;
3444     chomp $firstfile;
3445
3446     return $firstfile;
3447 }
3448
3449 sub tar_restore_cleanup {
3450     my ($storecfg, $statfile) = @_;
3451
3452     print STDERR "starting cleanup\n";
3453
3454     if (my $fd = IO::File->new($statfile, "r")) {
3455         while (defined(my $line = <$fd>)) {
3456             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3457                 my $volid = $2;
3458                 eval {
3459                     if ($volid =~ m|^/|) {
3460                         unlink $volid || die 'unlink failed\n';
3461                     } else {
3462                         PVE::Storage::vdisk_free($storecfg, $volid);
3463                     }
3464                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
3465                 };
3466                 print STDERR "unable to cleanup '$volid' - $@" if $@;
3467             } else {
3468                 print STDERR "unable to parse line in statfile - $line";
3469             }
3470         }
3471         $fd->close();
3472     }
3473 }
3474
3475 sub restore_archive {
3476     my ($archive, $vmid, $user, $opts) = @_;
3477
3478     my $format = $opts->{format};
3479     my $comp;
3480
3481     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
3482         $format = 'tar' if !$format;
3483         $comp = 'gzip';
3484     } elsif ($archive =~ m/\.tar$/) {
3485         $format = 'tar' if !$format;
3486     } elsif ($archive =~ m/.tar.lzo$/) {
3487         $format = 'tar' if !$format;
3488         $comp = 'lzop';
3489     } elsif ($archive =~ m/\.vma$/) {
3490         $format = 'vma' if !$format;
3491     } elsif ($archive =~ m/\.vma\.gz$/) {
3492         $format = 'vma' if !$format;
3493         $comp = 'gzip';
3494     } elsif ($archive =~ m/\.vma\.lzo$/) {
3495         $format = 'vma' if !$format;
3496         $comp = 'lzop';
3497     } else {
3498         $format = 'vma' if !$format; # default
3499     }
3500
3501     # try to detect archive format
3502     if ($format eq 'tar') {
3503         return restore_tar_archive($archive, $vmid, $user, $opts);
3504     } else {
3505         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
3506     }
3507 }
3508
3509 sub restore_update_config_line {
3510     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
3511
3512     return if $line =~ m/^\#qmdump\#/;
3513     return if $line =~ m/^\#vzdump\#/;
3514     return if $line =~ m/^lock:/;
3515     return if $line =~ m/^unused\d+:/;
3516     return if $line =~ m/^parent:/;
3517
3518     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
3519         # try to convert old 1.X settings
3520         my ($id, $ind, $ethcfg) = ($1, $2, $3);
3521         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
3522             my ($model, $macaddr) = split(/\=/, $devconfig);
3523             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
3524             my $net = {
3525                 model => $model,
3526                 bridge => "vmbr$ind",
3527                 macaddr => $macaddr,
3528             };
3529             my $netstr = print_net($net);
3530
3531             print $outfd "net$cookie->{netcount}: $netstr\n";
3532             $cookie->{netcount}++;
3533         }
3534     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
3535         my ($id, $netstr) = ($1, $2);
3536         my $net = parse_net($netstr);
3537         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
3538         $netstr = print_net($net);
3539         print $outfd "$id: $netstr\n";
3540     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
3541         my $virtdev = $1;
3542         my $value = $3;
3543         if ($line =~ m/backup=no/) {
3544             print $outfd "#$line";
3545         } elsif ($virtdev && $map->{$virtdev}) {
3546             my $di = parse_drive($virtdev, $value);
3547             $di->{file} = $map->{$virtdev};
3548             $value = print_drive($vmid, $di);
3549             print $outfd "$virtdev: $value\n";
3550         } else {
3551             print $outfd $line;
3552         }
3553     } else {
3554         print $outfd $line;
3555     }
3556 }
3557
3558 sub scan_volids {
3559     my ($cfg, $vmid) = @_;
3560
3561     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
3562
3563     my $volid_hash = {};
3564     foreach my $storeid (keys %$info) {
3565         foreach my $item (@{$info->{$storeid}}) {
3566             next if !($item->{volid} && $item->{size});
3567             $volid_hash->{$item->{volid}} = $item;
3568         }
3569     }
3570
3571     return $volid_hash;
3572 }
3573
3574 sub update_disksize {
3575     my ($vmid, $conf, $volid_hash) = @_;
3576
3577     my $changes;
3578
3579     my $used = {};
3580
3581     # update size info
3582     foreach my $opt (keys %$conf) {
3583         if (valid_drivename($opt)) {
3584             my $drive = parse_drive($opt, $conf->{$opt});
3585             my $volid = $drive->{file};
3586             next if !$volid;
3587
3588             $used->{$volid} = 1;
3589
3590             next if drive_is_cdrom($drive);
3591             next if !$volid_hash->{$volid};
3592
3593             $drive->{size} = $volid_hash->{$volid}->{size};
3594             $changes = 1;
3595             $conf->{$opt} = print_drive($vmid, $drive);
3596         }
3597     }
3598
3599     foreach my $volid (sort keys %$volid_hash) {
3600         next if $volid =~ m/vm-$vmid-state-/;
3601         next if $used->{$volid};
3602         $changes = 1;
3603         add_unused_volume($conf, $volid);
3604     }
3605
3606     return $changes;
3607 }
3608
3609 sub rescan {
3610     my ($vmid, $nolock) = @_;
3611
3612     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
3613
3614     my $volid_hash = scan_volids($cfg, $vmid);
3615
3616     my $updatefn =  sub {
3617         my ($vmid) = @_;
3618
3619         my $conf = load_config($vmid);
3620
3621         check_lock($conf);
3622
3623         my $changes = update_disksize($vmid, $conf, $volid_hash);
3624
3625         update_config_nolock($vmid, $conf, 1) if $changes;
3626     };
3627
3628     if (defined($vmid)) {
3629         if ($nolock) {
3630             &$updatefn($vmid);
3631         } else {
3632             lock_config($vmid, $updatefn, $vmid);
3633         }
3634     } else {
3635         my $vmlist = config_list();
3636         foreach my $vmid (keys %$vmlist) {
3637             if ($nolock) {
3638                 &$updatefn($vmid);
3639             } else {
3640                 lock_config($vmid, $updatefn, $vmid);
3641             }
3642         }
3643     }
3644 }
3645
3646 sub restore_vma_archive {
3647     my ($archive, $vmid, $user, $opts, $comp) = @_;
3648
3649     my $input = $archive eq '-' ? "<&STDIN" : undef;
3650     my $readfrom = $archive;
3651
3652     my $uncomp = '';
3653     if ($comp) {
3654         $readfrom = '-';
3655         my $qarchive = PVE::Tools::shellquote($archive);
3656         if ($comp eq 'gzip') {
3657             $uncomp = "zcat $qarchive|";
3658         } elsif ($comp eq 'lzop') {
3659             $uncomp = "lzop -d -c $qarchive|";
3660         } else {
3661             die "unknown compression method '$comp'\n";
3662         }
3663
3664     }
3665
3666     my $tmpdir = "/var/tmp/vzdumptmp$$";
3667     rmtree $tmpdir;
3668
3669     # disable interrupts (always do cleanups)
3670     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3671         warn "got interrupt - ignored\n";
3672     };
3673
3674     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
3675     POSIX::mkfifo($mapfifo, 0600);
3676     my $fifofh;
3677
3678     my $openfifo = sub {
3679         open($fifofh, '>', $mapfifo) || die $!;
3680     };
3681
3682     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
3683
3684     my $oldtimeout;
3685     my $timeout = 5;
3686
3687     my $devinfo = {};
3688
3689     my $rpcenv = PVE::RPCEnvironment::get();
3690
3691     my $conffile = config_file($vmid);
3692     my $tmpfn = "$conffile.$$.tmp";
3693
3694     # Note: $oldconf is undef if VM does not exists
3695     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
3696
3697     my $print_devmap = sub {
3698         my $virtdev_hash = {};
3699
3700         my $cfgfn = "$tmpdir/qemu-server.conf";
3701
3702         # we can read the config - that is already extracted
3703         my $fh = IO::File->new($cfgfn, "r") ||
3704             "unable to read qemu-server.conf - $!\n";
3705
3706         while (defined(my $line = <$fh>)) {
3707             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
3708                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
3709                 die "archive does not contain data for drive '$virtdev'\n"
3710                     if !$devinfo->{$devname};
3711                 if (defined($opts->{storage})) {
3712                     $storeid = $opts->{storage} || 'local';
3713                 } elsif (!$storeid) {
3714                     $storeid = 'local';
3715                 }
3716                 $format = 'raw' if !$format;
3717                 $devinfo->{$devname}->{devname} = $devname;
3718                 $devinfo->{$devname}->{virtdev} = $virtdev;
3719                 $devinfo->{$devname}->{format} = $format;
3720                 $devinfo->{$devname}->{storeid} = $storeid;
3721
3722                 # check permission on storage
3723                 my $pool = $opts->{pool}; # todo: do we need that?
3724                 if ($user ne 'root@pam') {
3725                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
3726                 }
3727
3728                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
3729             }
3730         }
3731
3732         foreach my $devname (keys %$devinfo) {
3733             die "found no device mapping information for device '$devname'\n"
3734                 if !$devinfo->{$devname}->{virtdev};
3735         }
3736
3737         my $cfg = cfs_read_file('storage.cfg');
3738
3739         # create empty/temp config
3740         if ($oldconf) {
3741             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
3742             foreach_drive($oldconf, sub {
3743                 my ($ds, $drive) = @_;
3744
3745                 return if drive_is_cdrom($drive);
3746
3747                 my $volid = $drive->{file};
3748
3749                 return if !$volid || $volid =~ m|^/|;
3750
3751                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
3752                 return if !$path || !$owner || ($owner != $vmid);
3753
3754                 # Note: only delete disk we want to restore
3755                 # other volumes will become unused
3756                 if ($virtdev_hash->{$ds}) {
3757                     PVE::Storage::vdisk_free($cfg, $volid);
3758                 }
3759             });
3760         }
3761
3762         my $map = {};
3763         foreach my $virtdev (sort keys %$virtdev_hash) {
3764             my $d = $virtdev_hash->{$virtdev};
3765             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
3766             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
3767             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
3768                                                   $d->{format}, undef, $alloc_size);
3769             print STDERR "new volume ID is '$volid'\n";
3770             $d->{volid} = $volid;
3771             my $path = PVE::Storage::path($cfg, $volid);
3772
3773             my $write_zeros = 1;
3774             # fixme: what other storages types initialize volumes with zero?
3775             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs') {
3776                 $write_zeros = 0;
3777             }
3778
3779             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
3780
3781             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
3782             $map->{$virtdev} = $volid;
3783         }
3784
3785         $fh->seek(0, 0) || die "seek failed - $!\n";
3786
3787         my $outfd = new IO::File ($tmpfn, "w") ||
3788             die "unable to write config for VM $vmid\n";
3789
3790         my $cookie = { netcount => 0 };
3791         while (defined(my $line = <$fh>)) {
3792             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3793         }
3794
3795         $fh->close();
3796         $outfd->close();
3797     };
3798
3799     eval {
3800         # enable interrupts
3801         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3802             die "interrupted by signal\n";
3803         };
3804         local $SIG{ALRM} = sub { die "got timeout\n"; };
3805
3806         $oldtimeout = alarm($timeout);
3807
3808         my $parser = sub {
3809             my $line = shift;
3810
3811             print "$line\n";
3812
3813             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
3814                 my ($dev_id, $size, $devname) = ($1, $2, $3);
3815                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
3816             } elsif ($line =~ m/^CTIME: /) {
3817                 &$print_devmap();
3818                 print $fifofh "done\n";
3819                 my $tmp = $oldtimeout || 0;
3820                 $oldtimeout = undef;
3821                 alarm($tmp);
3822                 close($fifofh);
3823             }
3824         };
3825
3826         print "restore vma archive: $cmd\n";
3827         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
3828     };
3829     my $err = $@;
3830
3831     alarm($oldtimeout) if $oldtimeout;
3832
3833     unlink $mapfifo;
3834
3835     if ($err) {
3836         rmtree $tmpdir;
3837         unlink $tmpfn;
3838
3839         my $cfg = cfs_read_file('storage.cfg');
3840         foreach my $devname (keys %$devinfo) {
3841             my $volid = $devinfo->{$devname}->{volid};
3842             next if !$volid;
3843             eval {
3844                 if ($volid =~ m|^/|) {
3845                     unlink $volid || die 'unlink failed\n';
3846                 } else {
3847                     PVE::Storage::vdisk_free($cfg, $volid);
3848                 }
3849                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
3850             };
3851             print STDERR "unable to cleanup '$volid' - $@" if $@;
3852         }
3853         die $err;
3854     }
3855
3856     rmtree $tmpdir;
3857
3858     rename($tmpfn, $conffile) ||
3859         die "unable to commit configuration file '$conffile'\n";
3860
3861     PVE::Cluster::cfs_update(); # make sure we read new file
3862
3863     eval { rescan($vmid, 1); };
3864     warn $@ if $@;
3865 }
3866
3867 sub restore_tar_archive {
3868     my ($archive, $vmid, $user, $opts) = @_;
3869
3870     if ($archive ne '-') {
3871         my $firstfile = tar_archive_read_firstfile($archive);
3872         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
3873             if $firstfile ne 'qemu-server.conf';
3874     }
3875
3876     my $storecfg = cfs_read_file('storage.cfg');
3877
3878     # destroy existing data - keep empty config
3879     my $vmcfgfn = PVE::QemuServer::config_file($vmid);
3880     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
3881
3882     my $tocmd = "/usr/lib/qemu-server/qmextract";
3883
3884     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
3885     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
3886     $tocmd .= ' --prealloc' if $opts->{prealloc};
3887     $tocmd .= ' --info' if $opts->{info};
3888
3889     # tar option "xf" does not autodetect compression when read from STDIN,
3890     # so we pipe to zcat
3891     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
3892         PVE::Tools::shellquote("--to-command=$tocmd");
3893
3894     my $tmpdir = "/var/tmp/vzdumptmp$$";
3895     mkpath $tmpdir;
3896
3897     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
3898     local $ENV{VZDUMP_VMID} = $vmid;
3899     local $ENV{VZDUMP_USER} = $user;
3900
3901     my $conffile = config_file($vmid);
3902     my $tmpfn = "$conffile.$$.tmp";
3903
3904     # disable interrupts (always do cleanups)
3905     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3906         print STDERR "got interrupt - ignored\n";
3907     };
3908
3909     eval {
3910         # enable interrupts
3911         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3912             die "interrupted by signal\n";
3913         };
3914
3915         if ($archive eq '-') {
3916             print "extracting archive from STDIN\n";
3917             run_command($cmd, input => "<&STDIN");
3918         } else {
3919             print "extracting archive '$archive'\n";
3920             run_command($cmd);
3921         }
3922
3923         return if $opts->{info};
3924
3925         # read new mapping
3926         my $map = {};
3927         my $statfile = "$tmpdir/qmrestore.stat";
3928         if (my $fd = IO::File->new($statfile, "r")) {
3929             while (defined (my $line = <$fd>)) {
3930                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3931                     $map->{$1} = $2 if $1;
3932                 } else {
3933                     print STDERR "unable to parse line in statfile - $line\n";
3934                 }
3935             }
3936             $fd->close();
3937         }
3938
3939         my $confsrc = "$tmpdir/qemu-server.conf";
3940
3941         my $srcfd = new IO::File($confsrc, "r") ||
3942             die "unable to open file '$confsrc'\n";
3943
3944         my $outfd = new IO::File ($tmpfn, "w") ||
3945             die "unable to write config for VM $vmid\n";
3946
3947         my $cookie = { netcount => 0 };
3948         while (defined (my $line = <$srcfd>)) {
3949             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3950         }
3951
3952         $srcfd->close();
3953         $outfd->close();
3954     };
3955     my $err = $@;
3956
3957     if ($err) {
3958
3959         unlink $tmpfn;
3960
3961         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
3962
3963         die $err;
3964     }
3965
3966     rmtree $tmpdir;
3967
3968     rename $tmpfn, $conffile ||
3969         die "unable to commit configuration file '$conffile'\n";
3970
3971     PVE::Cluster::cfs_update(); # make sure we read new file
3972
3973     eval { rescan($vmid, 1); };
3974     warn $@ if $@;
3975 };
3976
3977
3978 # Internal snapshots
3979
3980 # NOTE: Snapshot create/delete involves several non-atomic
3981 # action, and can take a long time.
3982 # So we try to avoid locking the file and use 'lock' variable
3983 # inside the config file instead.
3984
3985 my $snapshot_copy_config = sub {
3986     my ($source, $dest) = @_;
3987
3988     foreach my $k (keys %$source) {
3989         next if $k eq 'snapshots';
3990         next if $k eq 'snapstate';
3991         next if $k eq 'snaptime';
3992         next if $k eq 'vmstate';
3993         next if $k eq 'lock';
3994         next if $k eq 'digest';
3995         next if $k eq 'description';
3996         next if $k =~ m/^unused\d+$/;
3997
3998         $dest->{$k} = $source->{$k};
3999     }
4000 };
4001
4002 my $snapshot_apply_config = sub {
4003     my ($conf, $snap) = @_;
4004
4005     # copy snapshot list
4006     my $newconf = {
4007         snapshots => $conf->{snapshots},
4008     };
4009
4010     # keep description and list of unused disks
4011     foreach my $k (keys %$conf) {
4012         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
4013         $newconf->{$k} = $conf->{$k};
4014     }
4015
4016     &$snapshot_copy_config($snap, $newconf);
4017
4018     return $newconf;
4019 };
4020
4021 sub foreach_writable_storage {
4022     my ($conf, $func) = @_;
4023
4024     my $sidhash = {};
4025
4026     foreach my $ds (keys %$conf) {
4027         next if !valid_drivename($ds);
4028
4029         my $drive = parse_drive($ds, $conf->{$ds});
4030         next if !$drive;
4031         next if drive_is_cdrom($drive);
4032
4033         my $volid = $drive->{file};
4034
4035         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4036         $sidhash->{$sid} = $sid if $sid;
4037     }
4038
4039     foreach my $sid (sort keys %$sidhash) {
4040         &$func($sid);
4041     }
4042 }
4043
4044 my $alloc_vmstate_volid = sub {
4045     my ($storecfg, $vmid, $conf, $snapname) = @_;
4046
4047     # Note: we try to be smart when selecting a $target storage
4048
4049     my $target;
4050
4051     # search shared storage first
4052     foreach_writable_storage($conf, sub {
4053         my ($sid) = @_;
4054         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4055         return if !$scfg->{shared};
4056
4057         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
4058     });
4059
4060     if (!$target) {
4061         # now search local storage
4062         foreach_writable_storage($conf, sub {
4063             my ($sid) = @_;
4064             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4065             return if $scfg->{shared};
4066
4067             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
4068         });
4069     }
4070
4071     $target = 'local' if !$target;
4072
4073     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
4074     # we abort live save after $conf->{memory}, so we need at max twice that space
4075     my $size = $conf->{memory}*2 + $driver_state_size;
4076
4077     my $name = "vm-$vmid-state-$snapname";
4078     my $scfg = PVE::Storage::storage_config($storecfg, $target);
4079     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
4080     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
4081
4082     return $volid;
4083 };
4084
4085 my $snapshot_prepare = sub {
4086     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
4087
4088     my $snap;
4089
4090     my $updatefn =  sub {
4091
4092         my $conf = load_config($vmid);
4093
4094         die "you can't take a snapshot if it's a template\n"
4095             if is_template($conf);
4096
4097         check_lock($conf);
4098
4099         $conf->{lock} = 'snapshot';
4100
4101         die "snapshot name '$snapname' already used\n"
4102             if defined($conf->{snapshots}->{$snapname});
4103
4104         my $storecfg = PVE::Storage::config();
4105         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
4106
4107         $snap = $conf->{snapshots}->{$snapname} = {};
4108
4109         if ($save_vmstate && check_running($vmid)) {
4110             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
4111         }
4112
4113         &$snapshot_copy_config($conf, $snap);
4114
4115         $snap->{snapstate} = "prepare";
4116         $snap->{snaptime} = time();
4117         $snap->{description} = $comment if $comment;
4118
4119         update_config_nolock($vmid, $conf, 1);
4120     };
4121
4122     lock_config($vmid, $updatefn);
4123
4124     return $snap;
4125 };
4126
4127 my $snapshot_commit = sub {
4128     my ($vmid, $snapname) = @_;
4129
4130     my $updatefn = sub {
4131
4132         my $conf = load_config($vmid);
4133
4134         die "missing snapshot lock\n"
4135             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
4136
4137         my $snap = $conf->{snapshots}->{$snapname};
4138
4139         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4140
4141         die "wrong snapshot state\n"
4142             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
4143
4144         delete $snap->{snapstate};
4145         delete $conf->{lock};
4146
4147         my $newconf = &$snapshot_apply_config($conf, $snap);
4148
4149         $newconf->{parent} = $snapname;
4150
4151         update_config_nolock($vmid, $newconf, 1);
4152     };
4153
4154     lock_config($vmid, $updatefn);
4155 };
4156
4157 sub snapshot_rollback {
4158     my ($vmid, $snapname) = @_;
4159
4160     my $snap;
4161
4162     my $prepare = 1;
4163
4164     my $storecfg = PVE::Storage::config();
4165
4166     my $updatefn = sub {
4167
4168         my $conf = load_config($vmid);
4169
4170         die "you can't rollback if vm is a template\n" if is_template($conf);
4171
4172         $snap = $conf->{snapshots}->{$snapname};
4173
4174         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4175
4176         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
4177             if $snap->{snapstate};
4178
4179         if ($prepare) {
4180             check_lock($conf);
4181             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
4182         }
4183
4184         die "unable to rollback vm $vmid: vm is running\n"
4185             if check_running($vmid);
4186
4187         if ($prepare) {
4188             $conf->{lock} = 'rollback';
4189         } else {
4190             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
4191             delete $conf->{lock};
4192         }
4193
4194         if (!$prepare) {
4195             # copy snapshot config to current config
4196             $conf = &$snapshot_apply_config($conf, $snap);
4197             $conf->{parent} = $snapname;
4198         }
4199
4200         update_config_nolock($vmid, $conf, 1);
4201
4202         if (!$prepare && $snap->{vmstate}) {
4203             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
4204             vm_start($storecfg, $vmid, $statefile);
4205         }
4206     };
4207
4208     lock_config($vmid, $updatefn);
4209
4210     foreach_drive($snap, sub {
4211         my ($ds, $drive) = @_;
4212
4213         return if drive_is_cdrom($drive);
4214
4215         my $volid = $drive->{file};
4216         my $device = "drive-$ds";
4217
4218         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
4219     });
4220
4221     $prepare = 0;
4222     lock_config($vmid, $updatefn);
4223 }
4224
4225 my $savevm_wait = sub {
4226     my ($vmid) = @_;
4227
4228     for(;;) {
4229         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
4230         if (!$stat->{status}) {
4231             die "savevm not active\n";
4232         } elsif ($stat->{status} eq 'active') {
4233             sleep(1);
4234             next;
4235         } elsif ($stat->{status} eq 'completed') {
4236             last;
4237         } else {
4238             die "query-savevm returned status '$stat->{status}'\n";
4239         }
4240     }
4241 };
4242
4243 sub snapshot_create {
4244     my ($vmid, $snapname, $save_vmstate, $freezefs, $comment) = @_;
4245
4246     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
4247
4248     $freezefs = $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
4249
4250     my $drivehash = {};
4251
4252     my $running = check_running($vmid);
4253
4254     eval {
4255         # create internal snapshots of all drives
4256
4257         my $storecfg = PVE::Storage::config();
4258
4259         if ($running) {
4260             if ($snap->{vmstate}) {
4261                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
4262                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
4263                 &$savevm_wait($vmid);
4264             } else {
4265                 vm_mon_cmd($vmid, "savevm-start");
4266             }
4267         };
4268
4269         qga_freezefs($vmid) if $running && $freezefs;
4270
4271         foreach_drive($snap, sub {
4272             my ($ds, $drive) = @_;
4273
4274             return if drive_is_cdrom($drive);
4275
4276             my $volid = $drive->{file};
4277             my $device = "drive-$ds";
4278
4279             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
4280             $drivehash->{$ds} = 1;
4281        });
4282     };
4283     my $err = $@;
4284
4285     eval { gqa_unfreezefs($vmid) if $running && $freezefs; };
4286     warn $@ if $@;
4287
4288     eval { vm_mon_cmd($vmid, "savevm-end") if $running; };
4289     warn $@ if $@;
4290
4291     if ($err) {
4292         warn "snapshot create failed: starting cleanup\n";
4293         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
4294         warn $@ if $@;
4295         die $err;
4296     }
4297
4298     &$snapshot_commit($vmid, $snapname);
4299 }
4300
4301 # Note: $drivehash is only set when called from snapshot_create.
4302 sub snapshot_delete {
4303     my ($vmid, $snapname, $force, $drivehash) = @_;
4304
4305     my $prepare = 1;
4306
4307     my $snap;
4308     my $unused = [];
4309
4310     my $unlink_parent = sub {
4311         my ($confref, $new_parent) = @_;
4312
4313         if ($confref->{parent} && $confref->{parent} eq $snapname) {
4314             if ($new_parent) {
4315                 $confref->{parent} = $new_parent;
4316             } else {
4317                 delete $confref->{parent};
4318             }
4319         }
4320     };
4321
4322     my $updatefn =  sub {
4323         my ($remove_drive) = @_;
4324
4325         my $conf = load_config($vmid);
4326
4327         if (!$drivehash) {
4328             check_lock($conf);
4329             die "you can't delete a snapshot if vm is a template\n"
4330                 if is_template($conf);
4331         }
4332
4333         $snap = $conf->{snapshots}->{$snapname};
4334
4335         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4336
4337         # remove parent refs
4338         &$unlink_parent($conf, $snap->{parent});
4339         foreach my $sn (keys %{$conf->{snapshots}}) {
4340             next if $sn eq $snapname;
4341             &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
4342         }
4343
4344         if ($remove_drive) {
4345             if ($remove_drive eq 'vmstate') {
4346                 delete $snap->{$remove_drive};
4347             } else {
4348                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
4349                 my $volid = $drive->{file};
4350                 delete $snap->{$remove_drive};
4351                 add_unused_volume($conf, $volid);
4352             }
4353         }
4354
4355         if ($prepare) {
4356             $snap->{snapstate} = 'delete';
4357         } else {
4358             delete $conf->{snapshots}->{$snapname};
4359             delete $conf->{lock} if $drivehash;
4360             foreach my $volid (@$unused) {
4361                 add_unused_volume($conf, $volid);
4362             }
4363         }
4364
4365         update_config_nolock($vmid, $conf, 1);
4366     };
4367
4368     lock_config($vmid, $updatefn);
4369
4370     # now remove vmstate file
4371
4372     my $storecfg = PVE::Storage::config();
4373
4374     if ($snap->{vmstate}) {
4375         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
4376         if (my $err = $@) {
4377             die $err if !$force;
4378             warn $err;
4379         }
4380         # save changes (remove vmstate from snapshot)
4381         lock_config($vmid, $updatefn, 'vmstate') if !$force;
4382     };
4383
4384     # now remove all internal snapshots
4385     foreach_drive($snap, sub {
4386         my ($ds, $drive) = @_;
4387
4388         return if drive_is_cdrom($drive);
4389
4390         my $volid = $drive->{file};
4391         my $device = "drive-$ds";
4392
4393         if (!$drivehash || $drivehash->{$ds}) {
4394             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
4395             if (my $err = $@) {
4396                 die $err if !$force;
4397                 warn $err;
4398             }
4399         }
4400
4401         # save changes (remove drive fron snapshot)
4402         lock_config($vmid, $updatefn, $ds) if !$force;
4403         push @$unused, $volid;
4404     });
4405
4406     # now cleanup config
4407     $prepare = 0;
4408     lock_config($vmid, $updatefn);
4409 }
4410
4411 sub has_feature {
4412     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
4413
4414     my $err = undef;
4415     foreach_drive($conf, sub {
4416         my ($ds, $drive) = @_;
4417
4418         return if drive_is_cdrom($drive);
4419         my $volid = $drive->{file};
4420         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
4421     });
4422
4423     return 1 if !$err;
4424 }
4425
4426 sub template_create {
4427     my ($vmid, $conf, $disk) = @_;
4428
4429     my $running = check_running($vmid);
4430     die "you can't convert a vm to template if vm is running vm\n" if $running;
4431
4432     my $storecfg = PVE::Storage::config();
4433     my $i = 0;
4434
4435     foreach_drive($conf, sub {
4436         my ($ds, $drive) = @_;
4437
4438         return if drive_is_cdrom($drive);
4439         return if $disk && $ds ne $disk;
4440
4441         my $volid = $drive->{file};
4442         die "volume '$volid' does not support template/clone\n"
4443             if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
4444     });
4445
4446     foreach_drive($conf, sub {
4447         my ($ds, $drive) = @_;
4448
4449         return if drive_is_cdrom($drive);
4450         return if $disk && $ds ne $disk;
4451
4452         my $volid = $drive->{file};
4453         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
4454         $drive->{file} = $voliddst;
4455         $conf->{$ds} = PVE::QemuServer::print_drive($vmid, $drive);
4456         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4457
4458     });
4459     if($conf->{snapshots}){
4460         delete $conf->{parent};
4461         delete $conf->{snapshots};
4462         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4463         #fixme : do we need to delete disks snapshots ?
4464     }
4465 }
4466
4467 sub is_template {
4468     my ($conf) = @_;
4469
4470     my $baseimagecount = 0;
4471     my $totalvolumecount = 0;
4472     my $storecfg = PVE::Storage::config();
4473
4474     foreach_drive($conf, sub {
4475         my ($ds, $drive) = @_;
4476         return if drive_is_cdrom($drive);
4477         $totalvolumecount++;
4478         my $volid = $drive->{file};
4479         if (PVE::Storage::volume_is_base($storecfg, $volid)){
4480             $baseimagecount++;
4481         }
4482
4483     });
4484
4485     return 0 if $baseimagecount == 0;
4486     return 1 if $baseimagecount == $totalvolumecount; #full template
4487     return 2 if $baseimagecount < $totalvolumecount; #semi-template
4488 }
4489
4490 1;