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     $devicefull = "driver=".$devicefull;
2624     my %options =  split(/[=,]/, $devicefull);
2625
2626     vm_mon_cmd($vmid, "device_add" , %options);
2627     return 1;
2628 }
2629
2630 sub qemu_devicedel {
2631     my($vmid, $deviceid) = @_;
2632     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
2633     return 1;
2634 }
2635
2636 sub qemu_driveadd {
2637     my($storecfg, $vmid, $device) = @_;
2638
2639     my $drive = print_drive_full($storecfg, $vmid, $device);
2640     my $ret = vm_human_monitor_command($vmid, "drive_add auto $drive");
2641     # If the command succeeds qemu prints: "OK"
2642     if ($ret !~ m/OK/s) {
2643         syslog("err", "adding drive failed: $ret");
2644         return undef;
2645     }
2646     return 1;
2647 }
2648
2649 sub qemu_drivedel {
2650     my($vmid, $deviceid) = @_;
2651
2652     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
2653     $ret =~ s/^\s+//;
2654     if ($ret =~ m/Device \'.*?\' not found/s) {
2655         # NB: device not found errors mean the drive was auto-deleted and we ignore the error
2656     }
2657     elsif ($ret ne "") {
2658       syslog("err", "deleting drive $deviceid failed : $ret");
2659       return undef;
2660     }
2661     return 1;
2662 }
2663
2664 sub qemu_deviceaddverify {
2665     my ($vmid,$deviceid) = @_;
2666
2667     for (my $i = 0; $i <= 5; $i++) {
2668          my $devices_list = vm_devices_list($vmid);
2669          return 1 if defined($devices_list->{$deviceid});
2670          sleep 1;
2671     }
2672     syslog("err", "error on hotplug device $deviceid");
2673     return undef;
2674 }
2675
2676
2677 sub qemu_devicedelverify {
2678     my ($vmid,$deviceid) = @_;
2679
2680     #need to verify the device is correctly remove as device_del is async and empty return is not reliable
2681     for (my $i = 0; $i <= 5; $i++) {
2682          my $devices_list = vm_devices_list($vmid);
2683          return 1 if !defined($devices_list->{$deviceid});
2684          sleep 1;
2685     }
2686     syslog("err", "error on hot-unplugging device $deviceid");
2687     return undef;
2688 }
2689
2690 sub qemu_findorcreatescsihw {
2691     my ($storecfg, $conf, $vmid, $device) = @_;
2692
2693     my $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
2694     my $controller = int($device->{index} / $maxdev);
2695     my $scsihwid="scsihw$controller";
2696     my $devices_list = vm_devices_list($vmid);
2697
2698     if(!defined($devices_list->{$scsihwid})) {
2699        return undef if !vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
2700     }
2701     return 1;
2702 }
2703
2704 sub qemu_bridgeadd {
2705     my ($storecfg, $conf, $vmid, $device) = @_;
2706
2707     my $bridges = {};
2708     my $bridgeid = undef;
2709     print_pci_addr($device, $bridges);
2710
2711     while (my ($k, $v) = each %$bridges) {
2712         $bridgeid = $k;
2713     }
2714     return if $bridgeid < 1;
2715     my $bridge = "pci.$bridgeid";
2716     my $devices_list = vm_devices_list($vmid);
2717
2718     if(!defined($devices_list->{$bridge})) {
2719         return undef if !vm_deviceplug($storecfg, $conf, $vmid, $bridge);
2720     }
2721     return 1;
2722 }
2723
2724 sub qemu_netdevadd {
2725     my ($vmid, $conf, $device, $deviceid) = @_;
2726
2727     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
2728     my %options =  split(/[=,]/, $netdev);
2729
2730     vm_mon_cmd($vmid, "netdev_add",  %options);
2731     return 1;
2732 }
2733
2734 sub qemu_netdevdel {
2735     my ($vmid, $deviceid) = @_;
2736
2737     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
2738     return 1;
2739 }
2740
2741 sub qemu_block_set_io_throttle {
2742     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
2743
2744     return if !check_running($vmid) ;
2745
2746     $bps = 0 if !$bps;
2747     $bps_rd = 0 if !$bps_rd;
2748     $bps_wr = 0 if !$bps_wr;
2749     $iops = 0 if !$iops;
2750     $iops_rd = 0 if !$iops_rd;
2751     $iops_wr = 0 if !$iops_wr;
2752
2753     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($iops_wr));
2754
2755 }
2756
2757 # old code, only used to shutdown old VM after update
2758 sub __read_avail {
2759     my ($fh, $timeout) = @_;
2760
2761     my $sel = new IO::Select;
2762     $sel->add($fh);
2763
2764     my $res = '';
2765     my $buf;
2766
2767     my @ready;
2768     while (scalar (@ready = $sel->can_read($timeout))) {
2769         my $count;
2770         if ($count = $fh->sysread($buf, 8192)) {
2771             if ($buf =~ /^(.*)\(qemu\) $/s) {
2772                 $res .= $1;
2773                 last;
2774             } else {
2775                 $res .= $buf;
2776             }
2777         } else {
2778             if (!defined($count)) {
2779                 die "$!\n";
2780             }
2781             last;
2782         }
2783     }
2784
2785     die "monitor read timeout\n" if !scalar(@ready);
2786
2787     return $res;
2788 }
2789
2790 # old code, only used to shutdown old VM after update
2791 sub vm_monitor_command {
2792     my ($vmid, $cmdstr, $nocheck) = @_;
2793
2794     my $res;
2795
2796     eval {
2797         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
2798
2799         my $sname = "${var_run_tmpdir}/$vmid.mon";
2800
2801         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
2802             die "unable to connect to VM $vmid socket - $!\n";
2803
2804         my $timeout = 3;
2805
2806         # hack: migrate sometime blocks the monitor (when migrate_downtime
2807         # is set)
2808         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2809             $timeout = 60*60; # 1 hour
2810         }
2811
2812         # read banner;
2813         my $data = __read_avail($sock, $timeout);
2814
2815         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
2816             die "got unexpected qemu monitor banner\n";
2817         }
2818
2819         my $sel = new IO::Select;
2820         $sel->add($sock);
2821
2822         if (!scalar(my @ready = $sel->can_write($timeout))) {
2823             die "monitor write error - timeout";
2824         }
2825
2826         my $fullcmd = "$cmdstr\r";
2827
2828         # syslog('info', "VM $vmid monitor command: $cmdstr");
2829
2830         my $b;
2831         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
2832             die "monitor write error - $!";
2833         }
2834
2835         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
2836
2837         $timeout = 20;
2838
2839         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2840             $timeout = 60*60; # 1 hour
2841         } elsif ($cmdstr =~ m/^(eject|change)/) {
2842             $timeout = 60; # note: cdrom mount command is slow
2843         }
2844         if ($res = __read_avail($sock, $timeout)) {
2845
2846             my @lines = split("\r?\n", $res);
2847
2848             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
2849
2850             $res = join("\n", @lines);
2851             $res .= "\n";
2852         }
2853     };
2854
2855     my $err = $@;
2856
2857     if ($err) {
2858         syslog("err", "VM $vmid monitor command failed - $err");
2859         die $err;
2860     }
2861
2862     return $res;
2863 }
2864
2865 sub qemu_block_resize {
2866     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
2867
2868     my $running = check_running($vmid);
2869
2870     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
2871
2872     return if !$running;
2873
2874     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
2875
2876 }
2877
2878 sub qemu_volume_snapshot {
2879     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2880
2881     my $running = check_running($vmid);
2882
2883     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
2884
2885     return if !$running;
2886
2887     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
2888
2889 }
2890
2891 sub qemu_volume_snapshot_delete {
2892     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2893
2894     my $running = check_running($vmid);
2895
2896     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
2897
2898     return if !$running;
2899
2900     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
2901 }
2902
2903 sub qga_freezefs {
2904     my ($vmid) = @_;
2905
2906     #need to impplement call to qemu-ga
2907 }
2908
2909 sub qga_unfreezefs {
2910     my ($vmid) = @_;
2911
2912     #need to impplement call to qemu-ga
2913 }
2914
2915 sub vm_start {
2916     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused) = @_;
2917
2918     lock_config($vmid, sub {
2919         my $conf = load_config($vmid, $migratedfrom);
2920
2921         die "you can't start a vm if it's a template\n" if is_template($conf);
2922
2923         check_lock($conf) if !$skiplock;
2924
2925         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
2926
2927         my $defaults = load_defaults();
2928
2929         # set environment variable useful inside network script
2930         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
2931
2932         my ($cmd, $vollist) = config_to_command($storecfg, $vmid, $conf, $defaults);
2933
2934         my $migrate_port = 0;
2935
2936         if ($statefile) {
2937             if ($statefile eq 'tcp') {
2938                 $migrate_port = next_migrate_port();
2939                 my $migrate_uri = "tcp:localhost:${migrate_port}";
2940                 push @$cmd, '-incoming', $migrate_uri;
2941                 push @$cmd, '-S';
2942             } else {
2943                 push @$cmd, '-loadstate', $statefile;
2944             }
2945         } elsif ($paused) {
2946             push @$cmd, '-S';
2947         }
2948
2949         # host pci devices
2950         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2951           my $d = parse_hostpci($conf->{"hostpci$i"});
2952           next if !$d;
2953           my $info = pci_device_info("0000:$d->{pciid}");
2954           die "IOMMU not present\n" if !check_iommu_support();
2955           die "no pci device info for device '$d->{pciid}'\n" if !$info;
2956           die "can't unbind pci device '$d->{pciid}'\n" if !pci_dev_bind_to_stub($info);
2957           die "can't reset pci device '$d->{pciid}'\n" if !pci_dev_reset($info);
2958         }
2959
2960         PVE::Storage::activate_volumes($storecfg, $vollist);
2961
2962         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
2963                     umask => 0077); };
2964         my $err = $@;
2965         die "start failed: $err" if $err;
2966
2967         print "migration listens on port $migrate_port\n" if $migrate_port;
2968
2969         if ($statefile && $statefile ne 'tcp')  {
2970             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
2971             warn $@ if $@;
2972         }
2973
2974         if($migratedfrom) {
2975             my $capabilities = {};
2976             $capabilities->{capability} =  "xbzrle";
2977             $capabilities->{state} = JSON::true;
2978             eval { vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => [$capabilities]); };
2979         }
2980         else{
2981
2982             if (!defined($conf->{balloon}) || $conf->{balloon}) {
2983                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
2984                     if $conf->{balloon};
2985                 vm_mon_cmd_nocheck($vmid, 'qom-set',
2986                             path => "machine/peripheral/balloon0",
2987                             property => "guest-stats-polling-interval",
2988                             value => 2);
2989             }
2990         }
2991     });
2992 }
2993
2994 sub vm_mon_cmd {
2995     my ($vmid, $execute, %params) = @_;
2996
2997     my $cmd = { execute => $execute, arguments => \%params };
2998     vm_qmp_command($vmid, $cmd);
2999 }
3000
3001 sub vm_mon_cmd_nocheck {
3002     my ($vmid, $execute, %params) = @_;
3003
3004     my $cmd = { execute => $execute, arguments => \%params };
3005     vm_qmp_command($vmid, $cmd, 1);
3006 }
3007
3008 sub vm_qmp_command {
3009     my ($vmid, $cmd, $nocheck) = @_;
3010
3011     my $res;
3012
3013     my $timeout;
3014     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
3015         $timeout = $cmd->{arguments}->{timeout};
3016         delete $cmd->{arguments}->{timeout};
3017     }
3018
3019     eval {
3020         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3021         my $sname = qmp_socket($vmid);
3022         if (-e $sname) {
3023             my $qmpclient = PVE::QMPClient->new();
3024
3025             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
3026         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
3027             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
3028                 if scalar(%{$cmd->{arguments}});
3029             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
3030         } else {
3031             die "unable to open monitor socket\n";
3032         }
3033     };
3034     if (my $err = $@) {
3035         syslog("err", "VM $vmid qmp command failed - $err");
3036         die $err;
3037     }
3038
3039     return $res;
3040 }
3041
3042 sub vm_human_monitor_command {
3043     my ($vmid, $cmdline) = @_;
3044
3045     my $res;
3046
3047     my $cmd = {
3048         execute => 'human-monitor-command',
3049         arguments => { 'command-line' => $cmdline},
3050     };
3051
3052     return vm_qmp_command($vmid, $cmd);
3053 }
3054
3055 sub vm_commandline {
3056     my ($storecfg, $vmid) = @_;
3057
3058     my $conf = load_config($vmid);
3059
3060     my $defaults = load_defaults();
3061
3062     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
3063
3064     return join(' ', @$cmd);
3065 }
3066
3067 sub vm_reset {
3068     my ($vmid, $skiplock) = @_;
3069
3070     lock_config($vmid, sub {
3071
3072         my $conf = load_config($vmid);
3073
3074         check_lock($conf) if !$skiplock;
3075
3076         vm_mon_cmd($vmid, "system_reset");
3077     });
3078 }
3079
3080 sub get_vm_volumes {
3081     my ($conf) = @_;
3082
3083     my $vollist = [];
3084     foreach_volid($conf, sub {
3085         my ($volid, $is_cdrom) = @_;
3086
3087         return if $volid =~ m|^/|;
3088
3089         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
3090         return if !$sid;
3091
3092         push @$vollist, $volid;
3093     });
3094
3095     return $vollist;
3096 }
3097
3098 sub vm_stop_cleanup {
3099     my ($storecfg, $vmid, $conf, $keepActive) = @_;
3100
3101     eval {
3102         fairsched_rmnod($vmid); # try to destroy group
3103
3104         if (!$keepActive) {
3105             my $vollist = get_vm_volumes($conf);
3106             PVE::Storage::deactivate_volumes($storecfg, $vollist);
3107         }
3108
3109         foreach my $ext (qw(mon qmp pid vnc qga)) {
3110             unlink "/var/run/qemu-server/${vmid}.$ext";
3111         }
3112     };
3113     warn $@ if $@; # avoid errors - just warn
3114 }
3115
3116 # Note: use $nockeck to skip tests if VM configuration file exists.
3117 # We need that when migration VMs to other nodes (files already moved)
3118 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
3119 sub vm_stop {
3120     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
3121
3122     $force = 1 if !defined($force) && !$shutdown;
3123
3124     if ($migratedfrom){
3125         my $pid = check_running($vmid, $nocheck, $migratedfrom);
3126         kill 15, $pid if $pid;
3127         my $conf = load_config($vmid, $migratedfrom);
3128         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive);
3129         return;
3130     }
3131
3132     lock_config($vmid, sub {
3133
3134         my $pid = check_running($vmid, $nocheck);
3135         return if !$pid;
3136
3137         my $conf;
3138         if (!$nocheck) {
3139             $conf = load_config($vmid);
3140             check_lock($conf) if !$skiplock;
3141             if (!defined($timeout) && $shutdown && $conf->{startup}) {
3142                 my $opts = parse_startup($conf->{startup});
3143                 $timeout = $opts->{down} if $opts->{down};
3144             }
3145         }
3146
3147         $timeout = 60 if !defined($timeout);
3148
3149         eval {
3150             if ($shutdown) {
3151                 $nocheck ? vm_mon_cmd_nocheck($vmid, "system_powerdown") : vm_mon_cmd($vmid, "system_powerdown");
3152
3153             } else {
3154                 $nocheck ? vm_mon_cmd_nocheck($vmid, "quit") : vm_mon_cmd($vmid, "quit");
3155             }
3156         };
3157         my $err = $@;
3158
3159         if (!$err) {
3160             my $count = 0;
3161             while (($count < $timeout) && check_running($vmid, $nocheck)) {
3162                 $count++;
3163                 sleep 1;
3164             }
3165
3166             if ($count >= $timeout) {
3167                 if ($force) {
3168                     warn "VM still running - terminating now with SIGTERM\n";
3169                     kill 15, $pid;
3170                 } else {
3171                     die "VM quit/powerdown failed - got timeout\n";
3172                 }
3173             } else {
3174                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3175                 return;
3176             }
3177         } else {
3178             if ($force) {
3179                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
3180                 kill 15, $pid;
3181             } else {
3182                 die "VM quit/powerdown failed\n";
3183             }
3184         }
3185
3186         # wait again
3187         $timeout = 10;
3188
3189         my $count = 0;
3190         while (($count < $timeout) && check_running($vmid, $nocheck)) {
3191             $count++;
3192             sleep 1;
3193         }
3194
3195         if ($count >= $timeout) {
3196             warn "VM still running - terminating now with SIGKILL\n";
3197             kill 9, $pid;
3198             sleep 1;
3199         }
3200
3201         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3202    });
3203 }
3204
3205 sub vm_suspend {
3206     my ($vmid, $skiplock) = @_;
3207
3208     lock_config($vmid, sub {
3209
3210         my $conf = load_config($vmid);
3211
3212         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3213
3214         vm_mon_cmd($vmid, "stop");
3215     });
3216 }
3217
3218 sub vm_resume {
3219     my ($vmid, $skiplock) = @_;
3220
3221     lock_config($vmid, sub {
3222
3223         my $conf = load_config($vmid);
3224
3225         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3226
3227         vm_mon_cmd($vmid, "cont");
3228     });
3229 }
3230
3231 sub vm_sendkey {
3232     my ($vmid, $skiplock, $key) = @_;
3233
3234     lock_config($vmid, sub {
3235
3236         my $conf = load_config($vmid);
3237
3238         # there is no qmp command, so we use the human monitor command
3239         vm_human_monitor_command($vmid, "sendkey $key");
3240     });
3241 }
3242
3243 sub vm_destroy {
3244     my ($storecfg, $vmid, $skiplock) = @_;
3245
3246     lock_config($vmid, sub {
3247
3248         my $conf = load_config($vmid);
3249
3250         check_lock($conf) if !$skiplock;
3251
3252         if (!check_running($vmid)) {
3253             fairsched_rmnod($vmid); # try to destroy group
3254             destroy_vm($storecfg, $vmid);
3255         } else {
3256             die "VM $vmid is running - destroy failed\n";
3257         }
3258     });
3259 }
3260
3261 # pci helpers
3262
3263 sub file_write {
3264     my ($filename, $buf) = @_;
3265
3266     my $fh = IO::File->new($filename, "w");
3267     return undef if !$fh;
3268
3269     my $res = print $fh $buf;
3270
3271     $fh->close();
3272
3273     return $res;
3274 }
3275
3276 sub pci_device_info {
3277     my ($name) = @_;
3278
3279     my $res;
3280
3281     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
3282     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
3283
3284     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
3285     return undef if !defined($irq) || $irq !~ m/^\d+$/;
3286
3287     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
3288     return undef if !defined($vendor) || $vendor !~ s/^0x//;
3289
3290     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
3291     return undef if !defined($product) || $product !~ s/^0x//;
3292
3293     $res = {
3294         name => $name,
3295         vendor => $vendor,
3296         product => $product,
3297         domain => $domain,
3298         bus => $bus,
3299         slot => $slot,
3300         func => $func,
3301         irq => $irq,
3302         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
3303     };
3304
3305     return $res;
3306 }
3307
3308 sub pci_dev_reset {
3309     my ($dev) = @_;
3310
3311     my $name = $dev->{name};
3312
3313     my $fn = "$pcisysfs/devices/$name/reset";
3314
3315     return file_write($fn, "1");
3316 }
3317
3318 sub pci_dev_bind_to_stub {
3319     my ($dev) = @_;
3320
3321     my $name = $dev->{name};
3322
3323     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
3324     return 1 if -d $testdir;
3325
3326     my $data = "$dev->{vendor} $dev->{product}";
3327     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
3328
3329     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3330     if (!file_write($fn, $name)) {
3331         return undef if -f $fn;
3332     }
3333
3334     $fn = "$pcisysfs/drivers/pci-stub/bind";
3335     if (! -d $testdir) {
3336         return undef if !file_write($fn, $name);
3337     }
3338
3339     return -d $testdir;
3340 }
3341
3342 sub print_pci_addr {
3343     my ($id, $bridges) = @_;
3344
3345     my $res = '';
3346     my $devices = {
3347         #addr1 : ide,parallel,serial (motherboard)
3348         #addr2 : first videocard
3349         balloon0 => { bus => 0, addr => 3 },
3350         watchdog => { bus => 0, addr => 4 },
3351         scsihw0 => { bus => 0, addr => 5 },
3352         scsihw1 => { bus => 0, addr => 6 },
3353         ahci0 => { bus => 0, addr => 7 },
3354         qga0 => { bus => 0, addr => 8 },
3355         virtio0 => { bus => 0, addr => 10 },
3356         virtio1 => { bus => 0, addr => 11 },
3357         virtio2 => { bus => 0, addr => 12 },
3358         virtio3 => { bus => 0, addr => 13 },
3359         virtio4 => { bus => 0, addr => 14 },
3360         virtio5 => { bus => 0, addr => 15 },
3361         hostpci0 => { bus => 0, addr => 16 },
3362         hostpci1 => { bus => 0, addr => 17 },
3363         net0 => { bus => 0, addr => 18 },
3364         net1 => { bus => 0, addr => 19 },
3365         net2 => { bus => 0, addr => 20 },
3366         net3 => { bus => 0, addr => 21 },
3367         net4 => { bus => 0, addr => 22 },
3368         net5 => { bus => 0, addr => 23 },
3369         #addr29 : usb-host (pve-usb.cfg)
3370         'pci.1' => { bus => 0, addr => 30 },
3371         'pci.2' => { bus => 0, addr => 31 },
3372         'net6' => { bus => 1, addr => 1 },
3373         'net7' => { bus => 1, addr => 2 },
3374         'net8' => { bus => 1, addr => 3 },
3375         'net9' => { bus => 1, addr => 4 },
3376         'net10' => { bus => 1, addr => 5 },
3377         'net11' => { bus => 1, addr => 6 },
3378         'net12' => { bus => 1, addr => 7 },
3379         'net13' => { bus => 1, addr => 8 },
3380         'net14' => { bus => 1, addr => 9 },
3381         'net15' => { bus => 1, addr => 10 },
3382         'net16' => { bus => 1, addr => 11 },
3383         'net17' => { bus => 1, addr => 12 },
3384         'net18' => { bus => 1, addr => 13 },
3385         'net19' => { bus => 1, addr => 14 },
3386         'net20' => { bus => 1, addr => 15 },
3387         'net21' => { bus => 1, addr => 16 },
3388         'net22' => { bus => 1, addr => 17 },
3389         'net23' => { bus => 1, addr => 18 },
3390         'net24' => { bus => 1, addr => 19 },
3391         'net25' => { bus => 1, addr => 20 },
3392         'net26' => { bus => 1, addr => 21 },
3393         'net27' => { bus => 1, addr => 22 },
3394         'net28' => { bus => 1, addr => 23 },
3395         'net29' => { bus => 1, addr => 24 },
3396         'net30' => { bus => 1, addr => 25 },
3397         'net31' => { bus => 1, addr => 26 },
3398         'virtio6' => { bus => 2, addr => 1 },
3399         'virtio7' => { bus => 2, addr => 2 },
3400         'virtio8' => { bus => 2, addr => 3 },
3401         'virtio9' => { bus => 2, addr => 4 },
3402         'virtio10' => { bus => 2, addr => 5 },
3403         'virtio11' => { bus => 2, addr => 6 },
3404         'virtio12' => { bus => 2, addr => 7 },
3405         'virtio13' => { bus => 2, addr => 8 },
3406         'virtio14' => { bus => 2, addr => 9 },
3407         'virtio15' => { bus => 2, addr => 10 },
3408     };
3409
3410     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3411            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3412            my $bus = $devices->{$id}->{bus};
3413            $res = ",bus=pci.$bus,addr=$addr";
3414            $bridges->{$bus} = 1 if $bridges;
3415     }
3416     return $res;
3417
3418 }
3419
3420 # vzdump restore implementaion
3421
3422 sub tar_archive_read_firstfile {
3423     my $archive = shift;
3424
3425     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
3426
3427     # try to detect archive type first
3428     my $pid = open (TMP, "tar tf '$archive'|") ||
3429         die "unable to open file '$archive'\n";
3430     my $firstfile = <TMP>;
3431     kill 15, $pid;
3432     close TMP;
3433
3434     die "ERROR: archive contaions no data\n" if !$firstfile;
3435     chomp $firstfile;
3436
3437     return $firstfile;
3438 }
3439
3440 sub tar_restore_cleanup {
3441     my ($storecfg, $statfile) = @_;
3442
3443     print STDERR "starting cleanup\n";
3444
3445     if (my $fd = IO::File->new($statfile, "r")) {
3446         while (defined(my $line = <$fd>)) {
3447             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3448                 my $volid = $2;
3449                 eval {
3450                     if ($volid =~ m|^/|) {
3451                         unlink $volid || die 'unlink failed\n';
3452                     } else {
3453                         PVE::Storage::vdisk_free($storecfg, $volid);
3454                     }
3455                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
3456                 };
3457                 print STDERR "unable to cleanup '$volid' - $@" if $@;
3458             } else {
3459                 print STDERR "unable to parse line in statfile - $line";
3460             }
3461         }
3462         $fd->close();
3463     }
3464 }
3465
3466 sub restore_archive {
3467     my ($archive, $vmid, $user, $opts) = @_;
3468
3469     my $format = $opts->{format};
3470     my $comp;
3471
3472     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
3473         $format = 'tar' if !$format;
3474         $comp = 'gzip';
3475     } elsif ($archive =~ m/\.tar$/) {
3476         $format = 'tar' if !$format;
3477     } elsif ($archive =~ m/.tar.lzo$/) {
3478         $format = 'tar' if !$format;
3479         $comp = 'lzop';
3480     } elsif ($archive =~ m/\.vma$/) {
3481         $format = 'vma' if !$format;
3482     } elsif ($archive =~ m/\.vma\.gz$/) {
3483         $format = 'vma' if !$format;
3484         $comp = 'gzip';
3485     } elsif ($archive =~ m/\.vma\.lzo$/) {
3486         $format = 'vma' if !$format;
3487         $comp = 'lzop';
3488     } else {
3489         $format = 'vma' if !$format; # default
3490     }
3491
3492     # try to detect archive format
3493     if ($format eq 'tar') {
3494         return restore_tar_archive($archive, $vmid, $user, $opts);
3495     } else {
3496         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
3497     }
3498 }
3499
3500 sub restore_update_config_line {
3501     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
3502
3503     return if $line =~ m/^\#qmdump\#/;
3504     return if $line =~ m/^\#vzdump\#/;
3505     return if $line =~ m/^lock:/;
3506     return if $line =~ m/^unused\d+:/;
3507     return if $line =~ m/^parent:/;
3508
3509     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
3510         # try to convert old 1.X settings
3511         my ($id, $ind, $ethcfg) = ($1, $2, $3);
3512         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
3513             my ($model, $macaddr) = split(/\=/, $devconfig);
3514             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
3515             my $net = {
3516                 model => $model,
3517                 bridge => "vmbr$ind",
3518                 macaddr => $macaddr,
3519             };
3520             my $netstr = print_net($net);
3521
3522             print $outfd "net$cookie->{netcount}: $netstr\n";
3523             $cookie->{netcount}++;
3524         }
3525     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
3526         my ($id, $netstr) = ($1, $2);
3527         my $net = parse_net($netstr);
3528         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
3529         $netstr = print_net($net);
3530         print $outfd "$id: $netstr\n";
3531     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
3532         my $virtdev = $1;
3533         my $value = $3;
3534         if ($line =~ m/backup=no/) {
3535             print $outfd "#$line";
3536         } elsif ($virtdev && $map->{$virtdev}) {
3537             my $di = parse_drive($virtdev, $value);
3538             $di->{file} = $map->{$virtdev};
3539             $value = print_drive($vmid, $di);
3540             print $outfd "$virtdev: $value\n";
3541         } else {
3542             print $outfd $line;
3543         }
3544     } else {
3545         print $outfd $line;
3546     }
3547 }
3548
3549 sub scan_volids {
3550     my ($cfg, $vmid) = @_;
3551
3552     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
3553
3554     my $volid_hash = {};
3555     foreach my $storeid (keys %$info) {
3556         foreach my $item (@{$info->{$storeid}}) {
3557             next if !($item->{volid} && $item->{size});
3558             $volid_hash->{$item->{volid}} = $item;
3559         }
3560     }
3561
3562     return $volid_hash;
3563 }
3564
3565 sub update_disksize {
3566     my ($vmid, $conf, $volid_hash) = @_;
3567
3568     my $changes;
3569
3570     my $used = {};
3571
3572     # update size info
3573     foreach my $opt (keys %$conf) {
3574         if (valid_drivename($opt)) {
3575             my $drive = parse_drive($opt, $conf->{$opt});
3576             my $volid = $drive->{file};
3577             next if !$volid;
3578
3579             $used->{$volid} = 1;
3580
3581             next if drive_is_cdrom($drive);
3582             next if !$volid_hash->{$volid};
3583
3584             $drive->{size} = $volid_hash->{$volid}->{size};
3585             $changes = 1;
3586             $conf->{$opt} = print_drive($vmid, $drive);
3587         }
3588     }
3589
3590     foreach my $volid (sort keys %$volid_hash) {
3591         next if $volid =~ m/vm-$vmid-state-/;
3592         next if $used->{$volid};
3593         $changes = 1;
3594         add_unused_volume($conf, $volid);
3595     }
3596
3597     return $changes;
3598 }
3599
3600 sub rescan {
3601     my ($vmid, $nolock) = @_;
3602
3603     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
3604
3605     my $volid_hash = scan_volids($cfg, $vmid);
3606
3607     my $updatefn =  sub {
3608         my ($vmid) = @_;
3609
3610         my $conf = load_config($vmid);
3611
3612         check_lock($conf);
3613
3614         my $changes = update_disksize($vmid, $conf, $volid_hash);
3615
3616         update_config_nolock($vmid, $conf, 1) if $changes;
3617     };
3618
3619     if (defined($vmid)) {
3620         if ($nolock) {
3621             &$updatefn($vmid);
3622         } else {
3623             lock_config($vmid, $updatefn, $vmid);
3624         }
3625     } else {
3626         my $vmlist = config_list();
3627         foreach my $vmid (keys %$vmlist) {
3628             if ($nolock) {
3629                 &$updatefn($vmid);
3630             } else {
3631                 lock_config($vmid, $updatefn, $vmid);
3632             }
3633         }
3634     }
3635 }
3636
3637 sub restore_vma_archive {
3638     my ($archive, $vmid, $user, $opts, $comp) = @_;
3639
3640     my $input = $archive eq '-' ? "<&STDIN" : undef;
3641     my $readfrom = $archive;
3642
3643     my $uncomp = '';
3644     if ($comp) {
3645         $readfrom = '-';
3646         my $qarchive = PVE::Tools::shellquote($archive);
3647         if ($comp eq 'gzip') {
3648             $uncomp = "zcat $qarchive|";
3649         } elsif ($comp eq 'lzop') {
3650             $uncomp = "lzop -d -c $qarchive|";
3651         } else {
3652             die "unknown compression method '$comp'\n";
3653         }
3654
3655     }
3656
3657     my $tmpdir = "/var/tmp/vzdumptmp$$";
3658     rmtree $tmpdir;
3659
3660     # disable interrupts (always do cleanups)
3661     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3662         warn "got interrupt - ignored\n";
3663     };
3664
3665     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
3666     POSIX::mkfifo($mapfifo, 0600);
3667     my $fifofh;
3668
3669     my $openfifo = sub {
3670         open($fifofh, '>', $mapfifo) || die $!;
3671     };
3672
3673     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
3674
3675     my $oldtimeout;
3676     my $timeout = 5;
3677
3678     my $devinfo = {};
3679
3680     my $rpcenv = PVE::RPCEnvironment::get();
3681
3682     my $conffile = config_file($vmid);
3683     my $tmpfn = "$conffile.$$.tmp";
3684
3685     # Note: $oldconf is undef if VM does not exists
3686     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
3687
3688     my $print_devmap = sub {
3689         my $virtdev_hash = {};
3690
3691         my $cfgfn = "$tmpdir/qemu-server.conf";
3692
3693         # we can read the config - that is already extracted
3694         my $fh = IO::File->new($cfgfn, "r") ||
3695             "unable to read qemu-server.conf - $!\n";
3696
3697         while (defined(my $line = <$fh>)) {
3698             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
3699                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
3700                 die "archive does not contain data for drive '$virtdev'\n"
3701                     if !$devinfo->{$devname};
3702                 if (defined($opts->{storage})) {
3703                     $storeid = $opts->{storage} || 'local';
3704                 } elsif (!$storeid) {
3705                     $storeid = 'local';
3706                 }
3707                 $format = 'raw' if !$format;
3708                 $devinfo->{$devname}->{devname} = $devname;
3709                 $devinfo->{$devname}->{virtdev} = $virtdev;
3710                 $devinfo->{$devname}->{format} = $format;
3711                 $devinfo->{$devname}->{storeid} = $storeid;
3712
3713                 # check permission on storage
3714                 my $pool = $opts->{pool}; # todo: do we need that?
3715                 if ($user ne 'root@pam') {
3716                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
3717                 }
3718
3719                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
3720             }
3721         }
3722
3723         foreach my $devname (keys %$devinfo) {
3724             die "found no device mapping information for device '$devname'\n"
3725                 if !$devinfo->{$devname}->{virtdev};
3726         }
3727
3728         my $cfg = cfs_read_file('storage.cfg');
3729
3730         # create empty/temp config
3731         if ($oldconf) {
3732             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
3733             foreach_drive($oldconf, sub {
3734                 my ($ds, $drive) = @_;
3735
3736                 return if drive_is_cdrom($drive);
3737
3738                 my $volid = $drive->{file};
3739
3740                 return if !$volid || $volid =~ m|^/|;
3741
3742                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
3743                 return if !$path || !$owner || ($owner != $vmid);
3744
3745                 # Note: only delete disk we want to restore
3746                 # other volumes will become unused
3747                 if ($virtdev_hash->{$ds}) {
3748                     PVE::Storage::vdisk_free($cfg, $volid);
3749                 }
3750             });
3751         }
3752
3753         my $map = {};
3754         foreach my $virtdev (sort keys %$virtdev_hash) {
3755             my $d = $virtdev_hash->{$virtdev};
3756             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
3757             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
3758             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
3759                                                   $d->{format}, undef, $alloc_size);
3760             print STDERR "new volume ID is '$volid'\n";
3761             $d->{volid} = $volid;
3762             my $path = PVE::Storage::path($cfg, $volid);
3763
3764             my $write_zeros = 1;
3765             # fixme: what other storages types initialize volumes with zero?
3766             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs') {
3767                 $write_zeros = 0;
3768             }
3769
3770             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
3771
3772             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
3773             $map->{$virtdev} = $volid;
3774         }
3775
3776         $fh->seek(0, 0) || die "seek failed - $!\n";
3777
3778         my $outfd = new IO::File ($tmpfn, "w") ||
3779             die "unable to write config for VM $vmid\n";
3780
3781         my $cookie = { netcount => 0 };
3782         while (defined(my $line = <$fh>)) {
3783             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3784         }
3785
3786         $fh->close();
3787         $outfd->close();
3788     };
3789
3790     eval {
3791         # enable interrupts
3792         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3793             die "interrupted by signal\n";
3794         };
3795         local $SIG{ALRM} = sub { die "got timeout\n"; };
3796
3797         $oldtimeout = alarm($timeout);
3798
3799         my $parser = sub {
3800             my $line = shift;
3801
3802             print "$line\n";
3803
3804             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
3805                 my ($dev_id, $size, $devname) = ($1, $2, $3);
3806                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
3807             } elsif ($line =~ m/^CTIME: /) {
3808                 &$print_devmap();
3809                 print $fifofh "done\n";
3810                 my $tmp = $oldtimeout || 0;
3811                 $oldtimeout = undef;
3812                 alarm($tmp);
3813                 close($fifofh);
3814             }
3815         };
3816
3817         print "restore vma archive: $cmd\n";
3818         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
3819     };
3820     my $err = $@;
3821
3822     alarm($oldtimeout) if $oldtimeout;
3823
3824     unlink $mapfifo;
3825
3826     if ($err) {
3827         rmtree $tmpdir;
3828         unlink $tmpfn;
3829
3830         my $cfg = cfs_read_file('storage.cfg');
3831         foreach my $devname (keys %$devinfo) {
3832             my $volid = $devinfo->{$devname}->{volid};
3833             next if !$volid;
3834             eval {
3835                 if ($volid =~ m|^/|) {
3836                     unlink $volid || die 'unlink failed\n';
3837                 } else {
3838                     PVE::Storage::vdisk_free($cfg, $volid);
3839                 }
3840                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
3841             };
3842             print STDERR "unable to cleanup '$volid' - $@" if $@;
3843         }
3844         die $err;
3845     }
3846
3847     rmtree $tmpdir;
3848
3849     rename($tmpfn, $conffile) ||
3850         die "unable to commit configuration file '$conffile'\n";
3851
3852     PVE::Cluster::cfs_update(); # make sure we read new file
3853
3854     eval { rescan($vmid, 1); };
3855     warn $@ if $@;
3856 }
3857
3858 sub restore_tar_archive {
3859     my ($archive, $vmid, $user, $opts) = @_;
3860
3861     if ($archive ne '-') {
3862         my $firstfile = tar_archive_read_firstfile($archive);
3863         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
3864             if $firstfile ne 'qemu-server.conf';
3865     }
3866
3867     my $storecfg = cfs_read_file('storage.cfg');
3868
3869     # destroy existing data - keep empty config
3870     my $vmcfgfn = PVE::QemuServer::config_file($vmid);
3871     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
3872
3873     my $tocmd = "/usr/lib/qemu-server/qmextract";
3874
3875     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
3876     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
3877     $tocmd .= ' --prealloc' if $opts->{prealloc};
3878     $tocmd .= ' --info' if $opts->{info};
3879
3880     # tar option "xf" does not autodetect compression when read from STDIN,
3881     # so we pipe to zcat
3882     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
3883         PVE::Tools::shellquote("--to-command=$tocmd");
3884
3885     my $tmpdir = "/var/tmp/vzdumptmp$$";
3886     mkpath $tmpdir;
3887
3888     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
3889     local $ENV{VZDUMP_VMID} = $vmid;
3890     local $ENV{VZDUMP_USER} = $user;
3891
3892     my $conffile = config_file($vmid);
3893     my $tmpfn = "$conffile.$$.tmp";
3894
3895     # disable interrupts (always do cleanups)
3896     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3897         print STDERR "got interrupt - ignored\n";
3898     };
3899
3900     eval {
3901         # enable interrupts
3902         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3903             die "interrupted by signal\n";
3904         };
3905
3906         if ($archive eq '-') {
3907             print "extracting archive from STDIN\n";
3908             run_command($cmd, input => "<&STDIN");
3909         } else {
3910             print "extracting archive '$archive'\n";
3911             run_command($cmd);
3912         }
3913
3914         return if $opts->{info};
3915
3916         # read new mapping
3917         my $map = {};
3918         my $statfile = "$tmpdir/qmrestore.stat";
3919         if (my $fd = IO::File->new($statfile, "r")) {
3920             while (defined (my $line = <$fd>)) {
3921                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3922                     $map->{$1} = $2 if $1;
3923                 } else {
3924                     print STDERR "unable to parse line in statfile - $line\n";
3925                 }
3926             }
3927             $fd->close();
3928         }
3929
3930         my $confsrc = "$tmpdir/qemu-server.conf";
3931
3932         my $srcfd = new IO::File($confsrc, "r") ||
3933             die "unable to open file '$confsrc'\n";
3934
3935         my $outfd = new IO::File ($tmpfn, "w") ||
3936             die "unable to write config for VM $vmid\n";
3937
3938         my $cookie = { netcount => 0 };
3939         while (defined (my $line = <$srcfd>)) {
3940             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3941         }
3942
3943         $srcfd->close();
3944         $outfd->close();
3945     };
3946     my $err = $@;
3947
3948     if ($err) {
3949
3950         unlink $tmpfn;
3951
3952         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
3953
3954         die $err;
3955     }
3956
3957     rmtree $tmpdir;
3958
3959     rename $tmpfn, $conffile ||
3960         die "unable to commit configuration file '$conffile'\n";
3961
3962     PVE::Cluster::cfs_update(); # make sure we read new file
3963
3964     eval { rescan($vmid, 1); };
3965     warn $@ if $@;
3966 };
3967
3968
3969 # Internal snapshots
3970
3971 # NOTE: Snapshot create/delete involves several non-atomic
3972 # action, and can take a long time.
3973 # So we try to avoid locking the file and use 'lock' variable
3974 # inside the config file instead.
3975
3976 my $snapshot_copy_config = sub {
3977     my ($source, $dest) = @_;
3978
3979     foreach my $k (keys %$source) {
3980         next if $k eq 'snapshots';
3981         next if $k eq 'snapstate';
3982         next if $k eq 'snaptime';
3983         next if $k eq 'vmstate';
3984         next if $k eq 'lock';
3985         next if $k eq 'digest';
3986         next if $k eq 'description';
3987         next if $k =~ m/^unused\d+$/;
3988
3989         $dest->{$k} = $source->{$k};
3990     }
3991 };
3992
3993 my $snapshot_apply_config = sub {
3994     my ($conf, $snap) = @_;
3995
3996     # copy snapshot list
3997     my $newconf = {
3998         snapshots => $conf->{snapshots},
3999     };
4000
4001     # keep description and list of unused disks
4002     foreach my $k (keys %$conf) {
4003         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
4004         $newconf->{$k} = $conf->{$k};
4005     }
4006
4007     &$snapshot_copy_config($snap, $newconf);
4008
4009     return $newconf;
4010 };
4011
4012 sub foreach_writable_storage {
4013     my ($conf, $func) = @_;
4014
4015     my $sidhash = {};
4016
4017     foreach my $ds (keys %$conf) {
4018         next if !valid_drivename($ds);
4019
4020         my $drive = parse_drive($ds, $conf->{$ds});
4021         next if !$drive;
4022         next if drive_is_cdrom($drive);
4023
4024         my $volid = $drive->{file};
4025
4026         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4027         $sidhash->{$sid} = $sid if $sid;
4028     }
4029
4030     foreach my $sid (sort keys %$sidhash) {
4031         &$func($sid);
4032     }
4033 }
4034
4035 my $alloc_vmstate_volid = sub {
4036     my ($storecfg, $vmid, $conf, $snapname) = @_;
4037
4038     # Note: we try to be smart when selecting a $target storage
4039
4040     my $target;
4041
4042     # search shared storage first
4043     foreach_writable_storage($conf, sub {
4044         my ($sid) = @_;
4045         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4046         return if !$scfg->{shared};
4047
4048         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
4049     });
4050
4051     if (!$target) {
4052         # now search local storage
4053         foreach_writable_storage($conf, sub {
4054             my ($sid) = @_;
4055             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4056             return if $scfg->{shared};
4057
4058             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
4059         });
4060     }
4061
4062     $target = 'local' if !$target;
4063
4064     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
4065     # we abort live save after $conf->{memory}, so we need at max twice that space
4066     my $size = $conf->{memory}*2 + $driver_state_size;
4067
4068     my $name = "vm-$vmid-state-$snapname";
4069     my $scfg = PVE::Storage::storage_config($storecfg, $target);
4070     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
4071     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
4072
4073     return $volid;
4074 };
4075
4076 my $snapshot_prepare = sub {
4077     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
4078
4079     my $snap;
4080
4081     my $updatefn =  sub {
4082
4083         my $conf = load_config($vmid);
4084
4085         die "you can't take a snapshot if it's a template\n"
4086             if is_template($conf);
4087
4088         check_lock($conf);
4089
4090         $conf->{lock} = 'snapshot';
4091
4092         die "snapshot name '$snapname' already used\n"
4093             if defined($conf->{snapshots}->{$snapname});
4094
4095         my $storecfg = PVE::Storage::config();
4096         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
4097
4098         $snap = $conf->{snapshots}->{$snapname} = {};
4099
4100         if ($save_vmstate && check_running($vmid)) {
4101             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
4102         }
4103
4104         &$snapshot_copy_config($conf, $snap);
4105
4106         $snap->{snapstate} = "prepare";
4107         $snap->{snaptime} = time();
4108         $snap->{description} = $comment if $comment;
4109
4110         update_config_nolock($vmid, $conf, 1);
4111     };
4112
4113     lock_config($vmid, $updatefn);
4114
4115     return $snap;
4116 };
4117
4118 my $snapshot_commit = sub {
4119     my ($vmid, $snapname) = @_;
4120
4121     my $updatefn = sub {
4122
4123         my $conf = load_config($vmid);
4124
4125         die "missing snapshot lock\n"
4126             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
4127
4128         my $snap = $conf->{snapshots}->{$snapname};
4129
4130         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4131
4132         die "wrong snapshot state\n"
4133             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
4134
4135         delete $snap->{snapstate};
4136         delete $conf->{lock};
4137
4138         my $newconf = &$snapshot_apply_config($conf, $snap);
4139
4140         $newconf->{parent} = $snapname;
4141
4142         update_config_nolock($vmid, $newconf, 1);
4143     };
4144
4145     lock_config($vmid, $updatefn);
4146 };
4147
4148 sub snapshot_rollback {
4149     my ($vmid, $snapname) = @_;
4150
4151     my $snap;
4152
4153     my $prepare = 1;
4154
4155     my $storecfg = PVE::Storage::config();
4156
4157     my $updatefn = sub {
4158
4159         my $conf = load_config($vmid);
4160
4161         die "you can't rollback if vm is a template\n" if is_template($conf);
4162
4163         $snap = $conf->{snapshots}->{$snapname};
4164
4165         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4166
4167         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
4168             if $snap->{snapstate};
4169
4170         if ($prepare) {
4171             check_lock($conf);
4172             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
4173         }
4174
4175         die "unable to rollback vm $vmid: vm is running\n"
4176             if check_running($vmid);
4177
4178         if ($prepare) {
4179             $conf->{lock} = 'rollback';
4180         } else {
4181             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
4182             delete $conf->{lock};
4183         }
4184
4185         if (!$prepare) {
4186             # copy snapshot config to current config
4187             $conf = &$snapshot_apply_config($conf, $snap);
4188             $conf->{parent} = $snapname;
4189         }
4190
4191         update_config_nolock($vmid, $conf, 1);
4192
4193         if (!$prepare && $snap->{vmstate}) {
4194             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
4195             vm_start($storecfg, $vmid, $statefile);
4196         }
4197     };
4198
4199     lock_config($vmid, $updatefn);
4200
4201     foreach_drive($snap, sub {
4202         my ($ds, $drive) = @_;
4203
4204         return if drive_is_cdrom($drive);
4205
4206         my $volid = $drive->{file};
4207         my $device = "drive-$ds";
4208
4209         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
4210     });
4211
4212     $prepare = 0;
4213     lock_config($vmid, $updatefn);
4214 }
4215
4216 my $savevm_wait = sub {
4217     my ($vmid) = @_;
4218
4219     for(;;) {
4220         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
4221         if (!$stat->{status}) {
4222             die "savevm not active\n";
4223         } elsif ($stat->{status} eq 'active') {
4224             sleep(1);
4225             next;
4226         } elsif ($stat->{status} eq 'completed') {
4227             last;
4228         } else {
4229             die "query-savevm returned status '$stat->{status}'\n";
4230         }
4231     }
4232 };
4233
4234 sub snapshot_create {
4235     my ($vmid, $snapname, $save_vmstate, $freezefs, $comment) = @_;
4236
4237     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
4238
4239     $freezefs = $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
4240
4241     my $drivehash = {};
4242
4243     my $running = check_running($vmid);
4244
4245     eval {
4246         # create internal snapshots of all drives
4247
4248         my $storecfg = PVE::Storage::config();
4249
4250         if ($running) {
4251             if ($snap->{vmstate}) {
4252                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
4253                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
4254                 &$savevm_wait($vmid);
4255             } else {
4256                 vm_mon_cmd($vmid, "savevm-start");
4257             }
4258         };
4259
4260         qga_freezefs($vmid) if $running && $freezefs;
4261
4262         foreach_drive($snap, sub {
4263             my ($ds, $drive) = @_;
4264
4265             return if drive_is_cdrom($drive);
4266
4267             my $volid = $drive->{file};
4268             my $device = "drive-$ds";
4269
4270             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
4271             $drivehash->{$ds} = 1;
4272        });
4273     };
4274     my $err = $@;
4275
4276     eval { gqa_unfreezefs($vmid) if $running && $freezefs; };
4277     warn $@ if $@;
4278
4279     eval { vm_mon_cmd($vmid, "savevm-end") if $running; };
4280     warn $@ if $@;
4281
4282     if ($err) {
4283         warn "snapshot create failed: starting cleanup\n";
4284         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
4285         warn $@ if $@;
4286         die $err;
4287     }
4288
4289     &$snapshot_commit($vmid, $snapname);
4290 }
4291
4292 # Note: $drivehash is only set when called from snapshot_create.
4293 sub snapshot_delete {
4294     my ($vmid, $snapname, $force, $drivehash) = @_;
4295
4296     my $prepare = 1;
4297
4298     my $snap;
4299     my $unused = [];
4300
4301     my $unlink_parent = sub {
4302         my ($confref, $new_parent) = @_;
4303
4304         if ($confref->{parent} && $confref->{parent} eq $snapname) {
4305             if ($new_parent) {
4306                 $confref->{parent} = $new_parent;
4307             } else {
4308                 delete $confref->{parent};
4309             }
4310         }
4311     };
4312
4313     my $updatefn =  sub {
4314         my ($remove_drive) = @_;
4315
4316         my $conf = load_config($vmid);
4317
4318         if (!$drivehash) {
4319             check_lock($conf);
4320             die "you can't delete a snapshot if vm is a template\n"
4321                 if is_template($conf);
4322         }
4323
4324         $snap = $conf->{snapshots}->{$snapname};
4325
4326         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4327
4328         # remove parent refs
4329         &$unlink_parent($conf, $snap->{parent});
4330         foreach my $sn (keys %{$conf->{snapshots}}) {
4331             next if $sn eq $snapname;
4332             &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
4333         }
4334
4335         if ($remove_drive) {
4336             if ($remove_drive eq 'vmstate') {
4337                 delete $snap->{$remove_drive};
4338             } else {
4339                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
4340                 my $volid = $drive->{file};
4341                 delete $snap->{$remove_drive};
4342                 add_unused_volume($conf, $volid);
4343             }
4344         }
4345
4346         if ($prepare) {
4347             $snap->{snapstate} = 'delete';
4348         } else {
4349             delete $conf->{snapshots}->{$snapname};
4350             delete $conf->{lock} if $drivehash;
4351             foreach my $volid (@$unused) {
4352                 add_unused_volume($conf, $volid);
4353             }
4354         }
4355
4356         update_config_nolock($vmid, $conf, 1);
4357     };
4358
4359     lock_config($vmid, $updatefn);
4360
4361     # now remove vmstate file
4362
4363     my $storecfg = PVE::Storage::config();
4364
4365     if ($snap->{vmstate}) {
4366         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
4367         if (my $err = $@) {
4368             die $err if !$force;
4369             warn $err;
4370         }
4371         # save changes (remove vmstate from snapshot)
4372         lock_config($vmid, $updatefn, 'vmstate') if !$force;
4373     };
4374
4375     # now remove all internal snapshots
4376     foreach_drive($snap, sub {
4377         my ($ds, $drive) = @_;
4378
4379         return if drive_is_cdrom($drive);
4380
4381         my $volid = $drive->{file};
4382         my $device = "drive-$ds";
4383
4384         if (!$drivehash || $drivehash->{$ds}) {
4385             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
4386             if (my $err = $@) {
4387                 die $err if !$force;
4388                 warn $err;
4389             }
4390         }
4391
4392         # save changes (remove drive fron snapshot)
4393         lock_config($vmid, $updatefn, $ds) if !$force;
4394         push @$unused, $volid;
4395     });
4396
4397     # now cleanup config
4398     $prepare = 0;
4399     lock_config($vmid, $updatefn);
4400 }
4401
4402 sub has_feature {
4403     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
4404
4405     my $err = undef;
4406     foreach_drive($conf, sub {
4407         my ($ds, $drive) = @_;
4408
4409         return if drive_is_cdrom($drive);
4410         my $volid = $drive->{file};
4411         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
4412     });
4413
4414     return 1 if !$err;
4415 }
4416
4417 sub template_create {
4418     my ($vmid, $conf, $disk) = @_;
4419
4420     my $running = check_running($vmid);
4421     die "you can't convert a vm to template if vm is running vm\n" if $running;
4422
4423     my $storecfg = PVE::Storage::config();
4424     my $i = 0;
4425
4426     foreach_drive($conf, sub {
4427         my ($ds, $drive) = @_;
4428
4429         return if drive_is_cdrom($drive);
4430         return if $disk && $ds ne $disk;
4431
4432         my $volid = $drive->{file};
4433         die "volume '$volid' does not support template/clone\n"
4434             if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
4435     });
4436
4437     foreach_drive($conf, sub {
4438         my ($ds, $drive) = @_;
4439
4440         return if drive_is_cdrom($drive);
4441         return if $disk && $ds ne $disk;
4442
4443         my $volid = $drive->{file};
4444         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
4445         $drive->{file} = $voliddst;
4446         $conf->{$ds} = PVE::QemuServer::print_drive($vmid, $drive);
4447         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4448
4449     });
4450     if($conf->{snapshots}){
4451         delete $conf->{parent};
4452         delete $conf->{snapshots};
4453         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4454         #fixme : do we need to delete disks snapshots ?
4455     }
4456 }
4457
4458 sub is_template {
4459     my ($conf) = @_;
4460
4461     my $baseimagecount = 0;
4462     my $totalvolumecount = 0;
4463     my $storecfg = PVE::Storage::config();
4464
4465     foreach_drive($conf, sub {
4466         my ($ds, $drive) = @_;
4467         return if drive_is_cdrom($drive);
4468         $totalvolumecount++;
4469         my $volid = $drive->{file};
4470         if (PVE::Storage::volume_is_base($storecfg, $volid)){
4471             $baseimagecount++;
4472         }
4473
4474     });
4475
4476     return 0 if $baseimagecount == 0;
4477     return 1 if $baseimagecount == $totalvolumecount; #full template
4478     return 2 if $baseimagecount < $totalvolumecount; #semi-template
4479 }
4480
4481 1;