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     my $use_usb2 = 0;
2196     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2197         next if !$conf->{"usb$i"};
2198         $use_usb2 = 1;
2199     }
2200     # include usb device config
2201     push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2202
2203     # enable absolute mouse coordinates (needed by vnc)
2204     my $tablet = defined($conf->{tablet}) ? $conf->{tablet} : $defaults->{tablet};
2205     if ($tablet) {
2206         if ($use_usb2) {
2207             push @$devices, '-device', 'usb-tablet,bus=ehci.0,port=6';
2208         } else {
2209             push @$devices, '-usbdevice', 'tablet';
2210         }
2211     }
2212
2213     # host pci devices
2214     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2215           my $d = parse_hostpci($conf->{"hostpci$i"});
2216           next if !$d;
2217           $pciaddr = print_pci_addr("hostpci$i", $bridges);
2218           push @$devices, '-device', "pci-assign,host=$d->{pciid},id=hostpci$i$pciaddr";
2219     }
2220
2221     # usb devices
2222     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2223         my $d = parse_usb_device($conf->{"usb$i"});
2224         next if !$d;
2225         if ($d->{vendorid} && $d->{productid}) {
2226             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2227         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2228             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2229         }
2230     }
2231
2232     # serial devices
2233     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2234         if (my $path = $conf->{"serial$i"}) {
2235             die "no such serial device\n" if ! -c $path;
2236             push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2237             push @$devices, '-device', "isa-serial,chardev=serial$i";
2238         }
2239     }
2240
2241     # parallel devices
2242     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2243         if (my $path = $conf->{"parallel$i"}) {
2244             die "no such parallel device\n" if ! -c $path;
2245             push @$devices, '-chardev', "parport,id=parallel$i,path=$path";
2246             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2247         }
2248     }
2249
2250     my $vmname = $conf->{name} || "vm$vmid";
2251
2252     push @$cmd, '-name', $vmname;
2253
2254     my $sockets = 1;
2255     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2256     $sockets = $conf->{sockets} if  $conf->{sockets};
2257
2258     my $cores = $conf->{cores} || 1;
2259
2260     push @$cmd, '-smp', "sockets=$sockets,cores=$cores";
2261
2262     push @$cmd, '-cpu', $conf->{cpu} if $conf->{cpu};
2263
2264     push @$cmd, '-nodefaults';
2265
2266     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2267
2268     my $bootindex_hash = {};
2269     my $i = 1;
2270     foreach my $o (split(//, $bootorder)) {
2271         $bootindex_hash->{$o} = $i*100;
2272         $i++;
2273     }
2274
2275     push @$cmd, '-boot', "menu=on";
2276
2277     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2278
2279     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2280
2281     my $vga = $conf->{vga};
2282     if (!$vga) {
2283         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' || $conf->{ostype} eq 'win7' || $conf->{ostype} eq 'w2k8')) {
2284             $vga = 'std';
2285         } else {
2286             $vga = 'cirrus';
2287         }
2288     }
2289
2290     push @$cmd, '-vga', $vga if $vga; # for kvm 77 and later
2291
2292     # time drift fix
2293     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2294
2295     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2296     my $useLocaltime = $conf->{localtime};
2297
2298     if (my $ost = $conf->{ostype}) {
2299         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26
2300
2301         if ($ost =~ m/^w/) { # windows
2302             $useLocaltime = 1 if !defined($conf->{localtime});
2303
2304             # use time drift fix when acpi is enabled
2305             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2306                 $tdf = 1 if !defined($conf->{tdf});
2307             }
2308         }
2309
2310         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2311             $ost eq 'wvista') {
2312             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2313             push @$cmd, '-no-hpet';
2314         }
2315     }
2316
2317     push @$rtcFlags, 'driftfix=slew' if $tdf;
2318
2319     if ($nokvm) {
2320         push @$machineFlags, 'accel=tcg';
2321     } else {
2322         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2323     }
2324
2325     if ($conf->{startdate}) {
2326         push @$rtcFlags, "base=$conf->{startdate}";
2327     } elsif ($useLocaltime) {
2328         push @$rtcFlags, 'base=localtime';
2329     }
2330
2331     push @$cmd, '-S' if $conf->{freeze};
2332
2333     # set keyboard layout
2334     my $kb = $conf->{keyboard} || $defaults->{keyboard};
2335     push @$cmd, '-k', $kb if $kb;
2336
2337     # enable sound
2338     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
2339     #push @$cmd, '-soundhw', 'es1370';
2340     #push @$cmd, '-soundhw', $soundhw if $soundhw;
2341
2342     if($conf->{agent}) {
2343         my $qgasocket = qga_socket($vmid);
2344         my $pciaddr = print_pci_addr("qga0", $bridges);
2345         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
2346         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
2347         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
2348     }
2349
2350     # enable balloon by default, unless explicitly disabled
2351     if (!defined($conf->{balloon}) || $conf->{balloon}) {
2352         $pciaddr = print_pci_addr("balloon0", $bridges);
2353         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
2354     }
2355
2356     if ($conf->{watchdog}) {
2357         my $wdopts = parse_watchdog($conf->{watchdog});
2358         $pciaddr = print_pci_addr("watchdog", $bridges);
2359         my $watchdog = $wdopts->{model} || 'i6300esb';
2360         push @$devices, '-device', "$watchdog$pciaddr";
2361         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
2362     }
2363
2364     my $vollist = [];
2365     my $scsicontroller = {};
2366     my $ahcicontroller = {};
2367     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
2368
2369     foreach_drive($conf, sub {
2370         my ($ds, $drive) = @_;
2371
2372         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
2373             push @$vollist, $drive->{file};
2374         }
2375
2376         $use_virtio = 1 if $ds =~ m/^virtio/;
2377
2378         if (drive_is_cdrom ($drive)) {
2379             if ($bootindex_hash->{d}) {
2380                 $drive->{bootindex} = $bootindex_hash->{d};
2381                 $bootindex_hash->{d} += 1;
2382             }
2383         } else {
2384             if ($bootindex_hash->{c}) {
2385                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
2386                 $bootindex_hash->{c} += 1;
2387             }
2388         }
2389
2390         if ($drive->{interface} eq 'scsi') {
2391
2392             my $maxdev = ($scsihw ne 'lsi') ? 256 : 7;
2393             my $controller = int($drive->{index} / $maxdev);
2394             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
2395             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
2396             $scsicontroller->{$controller}=1;
2397         }
2398
2399         if ($drive->{interface} eq 'sata') {
2400            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
2401            $pciaddr = print_pci_addr("ahci$controller", $bridges);
2402            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
2403            $ahcicontroller->{$controller}=1;
2404         }
2405
2406         push @$devices, '-drive',print_drive_full($storecfg, $vmid, $drive);
2407         push @$devices, '-device',print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
2408     });
2409
2410     push @$cmd, '-m', $conf->{memory} || $defaults->{memory};
2411
2412     for (my $i = 0; $i < $MAX_NETS; $i++) {
2413          next if !$conf->{"net$i"};
2414          my $d = parse_net($conf->{"net$i"});
2415          next if !$d;
2416
2417          $use_virtio = 1 if $d->{model} eq 'virtio';
2418
2419          if ($bootindex_hash->{n}) {
2420             $d->{bootindex} = $bootindex_hash->{n};
2421             $bootindex_hash->{n} += 1;
2422          }
2423
2424          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
2425          push @$devices, '-netdev', $netdevfull;
2426
2427          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
2428          push @$devices, '-device', $netdevicefull;
2429     }
2430
2431     #bridges
2432     while (my ($k, $v) = each %$bridges) {
2433         $pciaddr = print_pci_addr("pci.$k");
2434         unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
2435     }
2436
2437
2438     # hack: virtio with fairsched is unreliable, so we do not use fairsched
2439     # when the VM uses virtio devices.
2440     if (!$use_virtio && $have_ovz) {
2441
2442         my $cpuunits = defined($conf->{cpuunits}) ?
2443             $conf->{cpuunits} : $defaults->{cpuunits};
2444
2445         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
2446
2447         # fixme: cpulimit is currently ignored
2448         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
2449     }
2450
2451     # add custom args
2452     if ($conf->{args}) {
2453         my $aa = PVE::Tools::split_args($conf->{args});
2454         push @$cmd, @$aa;
2455     }
2456
2457     push @$cmd, @$devices;
2458     push @$cmd, '-rtc', join(',', @$rtcFlags)
2459         if scalar(@$rtcFlags);
2460     push @$cmd, '-machine', join(',', @$machineFlags)
2461         if scalar(@$machineFlags);
2462     push @$cmd, '-global', join(',', @$globalFlags)
2463         if scalar(@$globalFlags);
2464
2465     return wantarray ? ($cmd, $vollist) : $cmd;
2466 }
2467
2468 sub vnc_socket {
2469     my ($vmid) = @_;
2470     return "${var_run_tmpdir}/$vmid.vnc";
2471 }
2472
2473 sub qmp_socket {
2474     my ($vmid) = @_;
2475     return "${var_run_tmpdir}/$vmid.qmp";
2476 }
2477
2478 sub qga_socket {
2479     my ($vmid) = @_;
2480     return "${var_run_tmpdir}/$vmid.qga";
2481 }
2482
2483 sub pidfile_name {
2484     my ($vmid) = @_;
2485     return "${var_run_tmpdir}/$vmid.pid";
2486 }
2487
2488 sub next_migrate_port {
2489
2490     for (my $p = 60000; $p < 60010; $p++) {
2491
2492         my $sock = IO::Socket::INET->new(Listen => 5,
2493                                          LocalAddr => 'localhost',
2494                                          LocalPort => $p,
2495                                          ReuseAddr => 1,
2496                                          Proto     => 0);
2497
2498         if ($sock) {
2499             close($sock);
2500             return $p;
2501         }
2502     }
2503
2504     die "unable to find free migration port";
2505 }
2506
2507 sub vm_devices_list {
2508     my ($vmid) = @_;
2509
2510     my $res = vm_mon_cmd($vmid, 'query-pci');
2511
2512     my $devices = {};
2513     foreach my $pcibus (@$res) {
2514         foreach my $device (@{$pcibus->{devices}}) {
2515             next if !$device->{'qdev_id'};
2516             $devices->{$device->{'qdev_id'}} = $device;
2517         }
2518     }
2519
2520     return $devices;
2521 }
2522
2523 sub vm_deviceplug {
2524     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
2525
2526     return 1 if !check_running($vmid) || !$conf->{hotplug};
2527
2528     my $devices_list = vm_devices_list($vmid);
2529     return 1 if defined($devices_list->{$deviceid});
2530
2531     qemu_bridgeadd($storecfg, $conf, $vmid, $deviceid); #add bridge if we need it for the device
2532
2533     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2534         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2535         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2536         qemu_deviceadd($vmid, $devicefull);
2537         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2538            qemu_drivedel($vmid, $deviceid);
2539            return undef;
2540         }
2541     }
2542
2543     if ($deviceid =~ m/^(scsihw)(\d+)$/) {
2544         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
2545         my $pciaddr = print_pci_addr($deviceid);
2546         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
2547         qemu_deviceadd($vmid, $devicefull);
2548         return undef if(!qemu_deviceaddverify($vmid, $deviceid));
2549     }
2550
2551     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2552         return 1 if ($conf->{scsihw} && $conf->{scsihw} ne 'lsi'); #virtio-scsi not yet support hotplug
2553         return undef if !qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
2554         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2555         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2556         if(!qemu_deviceadd($vmid, $devicefull)) {
2557            qemu_drivedel($vmid, $deviceid);
2558            return undef;
2559         }
2560     }
2561
2562     if ($deviceid =~ m/^(net)(\d+)$/) {
2563         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
2564         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
2565         qemu_deviceadd($vmid, $netdevicefull);
2566         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2567            qemu_netdevdel($vmid, $deviceid);
2568            return undef;
2569         }
2570     }
2571
2572     if ($deviceid =~ m/^(pci\.)(\d+)$/) {
2573         my $bridgeid = $2;
2574         my $pciaddr = print_pci_addr($deviceid);
2575         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
2576         qemu_deviceadd($vmid, $devicefull);
2577         return undef if !qemu_deviceaddverify($vmid, $deviceid);
2578     }
2579
2580     return 1;
2581 }
2582
2583 sub vm_deviceunplug {
2584     my ($vmid, $conf, $deviceid) = @_;
2585
2586     return 1 if !check_running ($vmid) || !$conf->{hotplug};
2587
2588     my $devices_list = vm_devices_list($vmid);
2589     return 1 if !defined($devices_list->{$deviceid});
2590
2591     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
2592
2593     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2594         return undef if !qemu_drivedel($vmid, $deviceid);
2595         qemu_devicedel($vmid, $deviceid);
2596         return undef if !qemu_devicedelverify($vmid, $deviceid);
2597     }
2598
2599     if ($deviceid =~ m/^(lsi)(\d+)$/) {
2600         return undef if !qemu_devicedel($vmid, $deviceid);
2601     }
2602
2603     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2604         return undef if !qemu_devicedel($vmid, $deviceid);
2605         return undef if !qemu_drivedel($vmid, $deviceid);
2606     }
2607
2608     if ($deviceid =~ m/^(net)(\d+)$/) {
2609         return undef if !qemu_netdevdel($vmid, $deviceid);
2610         qemu_devicedel($vmid, $deviceid);
2611         return undef if !qemu_devicedelverify($vmid, $deviceid);
2612     }
2613
2614     return 1;
2615 }
2616
2617 sub qemu_deviceadd {
2618     my ($vmid, $devicefull) = @_;
2619
2620     my $ret = vm_human_monitor_command($vmid, "device_add $devicefull");
2621     $ret =~ s/^\s+//;
2622     # Otherwise, if the command succeeds, no output is sent. So any non-empty string shows an error
2623     return 1 if $ret eq "";
2624     syslog("err", "error on hotplug device : $ret");
2625     return undef;
2626
2627 }
2628
2629 sub qemu_devicedel {
2630     my($vmid, $deviceid) = @_;
2631
2632     my $ret = vm_human_monitor_command($vmid, "device_del $deviceid");
2633     $ret =~ s/^\s+//;
2634     return 1 if $ret eq "";
2635     syslog("err", "detaching device $deviceid failed : $ret");
2636     return undef;
2637 }
2638
2639 sub qemu_driveadd {
2640     my($storecfg, $vmid, $device) = @_;
2641
2642     my $drive = print_drive_full($storecfg, $vmid, $device);
2643     my $ret = vm_human_monitor_command($vmid, "drive_add auto $drive");
2644     # If the command succeeds qemu prints: "OK"
2645     if ($ret !~ m/OK/s) {
2646         syslog("err", "adding drive failed: $ret");
2647         return undef;
2648     }
2649     return 1;
2650 }
2651
2652 sub qemu_drivedel {
2653     my($vmid, $deviceid) = @_;
2654
2655     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
2656     $ret =~ s/^\s+//;
2657     if ($ret =~ m/Device \'.*?\' not found/s) {
2658         # NB: device not found errors mean the drive was auto-deleted and we ignore the error
2659     }
2660     elsif ($ret ne "") {
2661       syslog("err", "deleting drive $deviceid failed : $ret");
2662       return undef;
2663     }
2664     return 1;
2665 }
2666
2667 sub qemu_deviceaddverify {
2668     my ($vmid,$deviceid) = @_;
2669
2670     for (my $i = 0; $i <= 5; $i++) {
2671          my $devices_list = vm_devices_list($vmid);
2672          return 1 if defined($devices_list->{$deviceid});
2673          sleep 1;
2674     }
2675     syslog("err", "error on hotplug device $deviceid");
2676     return undef;
2677 }
2678
2679
2680 sub qemu_devicedelverify {
2681     my ($vmid,$deviceid) = @_;
2682
2683     #need to verify the device is correctly remove as device_del is async and empty return is not reliable
2684     for (my $i = 0; $i <= 5; $i++) {
2685          my $devices_list = vm_devices_list($vmid);
2686          return 1 if !defined($devices_list->{$deviceid});
2687          sleep 1;
2688     }
2689     syslog("err", "error on hot-unplugging device $deviceid");
2690     return undef;
2691 }
2692
2693 sub qemu_findorcreatescsihw {
2694     my ($storecfg, $conf, $vmid, $device) = @_;
2695
2696     my $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
2697     my $controller = int($device->{index} / $maxdev);
2698     my $scsihwid="scsihw$controller";
2699     my $devices_list = vm_devices_list($vmid);
2700
2701     if(!defined($devices_list->{$scsihwid})) {
2702        return undef if !vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
2703     }
2704     return 1;
2705 }
2706
2707 sub qemu_bridgeadd {
2708     my ($storecfg, $conf, $vmid, $device) = @_;
2709
2710     my $bridges = {};
2711     my $bridgeid = undef;
2712     print_pci_addr($device, $bridges);
2713
2714     while (my ($k, $v) = each %$bridges) {
2715         $bridgeid = $k;
2716     }
2717     return if $bridgeid < 1;
2718     my $bridge = "pci.$bridgeid";
2719     my $devices_list = vm_devices_list($vmid);
2720
2721     if(!defined($devices_list->{$bridge})) {
2722         return undef if !vm_deviceplug($storecfg, $conf, $vmid, $bridge);
2723     }
2724     return 1;
2725 }
2726
2727 sub qemu_netdevadd {
2728     my ($vmid, $conf, $device, $deviceid) = @_;
2729
2730     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
2731     my $ret = vm_human_monitor_command($vmid, "netdev_add $netdev");
2732     $ret =~ s/^\s+//;
2733
2734     #if the command succeeds, no output is sent. So any non-empty string shows an error
2735     return 1 if $ret eq "";
2736     syslog("err", "adding netdev failed: $ret");
2737     return undef;
2738 }
2739
2740 sub qemu_netdevdel {
2741     my ($vmid, $deviceid) = @_;
2742
2743     my $ret = vm_human_monitor_command($vmid, "netdev_del $deviceid");
2744     $ret =~ s/^\s+//;
2745     #if the command succeeds, no output is sent. So any non-empty string shows an error
2746     return 1 if $ret eq "";
2747     syslog("err", "deleting netdev failed: $ret");
2748     return undef;
2749 }
2750
2751 sub qemu_block_set_io_throttle {
2752     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
2753
2754     return if !check_running($vmid) ;
2755
2756     $bps = 0 if !$bps;
2757     $bps_rd = 0 if !$bps_rd;
2758     $bps_wr = 0 if !$bps_wr;
2759     $iops = 0 if !$iops;
2760     $iops_rd = 0 if !$iops_rd;
2761     $iops_wr = 0 if !$iops_wr;
2762
2763     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($iops_wr));
2764
2765 }
2766
2767 # old code, only used to shutdown old VM after update
2768 sub __read_avail {
2769     my ($fh, $timeout) = @_;
2770
2771     my $sel = new IO::Select;
2772     $sel->add($fh);
2773
2774     my $res = '';
2775     my $buf;
2776
2777     my @ready;
2778     while (scalar (@ready = $sel->can_read($timeout))) {
2779         my $count;
2780         if ($count = $fh->sysread($buf, 8192)) {
2781             if ($buf =~ /^(.*)\(qemu\) $/s) {
2782                 $res .= $1;
2783                 last;
2784             } else {
2785                 $res .= $buf;
2786             }
2787         } else {
2788             if (!defined($count)) {
2789                 die "$!\n";
2790             }
2791             last;
2792         }
2793     }
2794
2795     die "monitor read timeout\n" if !scalar(@ready);
2796
2797     return $res;
2798 }
2799
2800 # old code, only used to shutdown old VM after update
2801 sub vm_monitor_command {
2802     my ($vmid, $cmdstr, $nocheck) = @_;
2803
2804     my $res;
2805
2806     eval {
2807         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
2808
2809         my $sname = "${var_run_tmpdir}/$vmid.mon";
2810
2811         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
2812             die "unable to connect to VM $vmid socket - $!\n";
2813
2814         my $timeout = 3;
2815
2816         # hack: migrate sometime blocks the monitor (when migrate_downtime
2817         # is set)
2818         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2819             $timeout = 60*60; # 1 hour
2820         }
2821
2822         # read banner;
2823         my $data = __read_avail($sock, $timeout);
2824
2825         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
2826             die "got unexpected qemu monitor banner\n";
2827         }
2828
2829         my $sel = new IO::Select;
2830         $sel->add($sock);
2831
2832         if (!scalar(my @ready = $sel->can_write($timeout))) {
2833             die "monitor write error - timeout";
2834         }
2835
2836         my $fullcmd = "$cmdstr\r";
2837
2838         # syslog('info', "VM $vmid monitor command: $cmdstr");
2839
2840         my $b;
2841         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
2842             die "monitor write error - $!";
2843         }
2844
2845         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
2846
2847         $timeout = 20;
2848
2849         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2850             $timeout = 60*60; # 1 hour
2851         } elsif ($cmdstr =~ m/^(eject|change)/) {
2852             $timeout = 60; # note: cdrom mount command is slow
2853         }
2854         if ($res = __read_avail($sock, $timeout)) {
2855
2856             my @lines = split("\r?\n", $res);
2857
2858             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
2859
2860             $res = join("\n", @lines);
2861             $res .= "\n";
2862         }
2863     };
2864
2865     my $err = $@;
2866
2867     if ($err) {
2868         syslog("err", "VM $vmid monitor command failed - $err");
2869         die $err;
2870     }
2871
2872     return $res;
2873 }
2874
2875 sub qemu_block_resize {
2876     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
2877
2878     my $running = check_running($vmid);
2879
2880     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
2881
2882     return if !$running;
2883
2884     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
2885
2886 }
2887
2888 sub qemu_volume_snapshot {
2889     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2890
2891     my $running = check_running($vmid);
2892
2893     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
2894
2895     return if !$running;
2896
2897     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
2898
2899 }
2900
2901 sub qemu_volume_snapshot_delete {
2902     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2903
2904     my $running = check_running($vmid);
2905
2906     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
2907
2908     return if !$running;
2909
2910     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
2911 }
2912
2913 sub qga_freezefs {
2914     my ($vmid) = @_;
2915
2916     #need to impplement call to qemu-ga
2917 }
2918
2919 sub qga_unfreezefs {
2920     my ($vmid) = @_;
2921
2922     #need to impplement call to qemu-ga
2923 }
2924
2925 sub vm_start {
2926     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused) = @_;
2927
2928     lock_config($vmid, sub {
2929         my $conf = load_config($vmid, $migratedfrom);
2930
2931         die "you can't start a vm if it's a template" if is_template($conf);
2932
2933         check_lock($conf) if !$skiplock;
2934
2935         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
2936
2937         my $defaults = load_defaults();
2938
2939         # set environment variable useful inside network script
2940         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
2941
2942         my ($cmd, $vollist) = config_to_command($storecfg, $vmid, $conf, $defaults);
2943
2944         my $migrate_port = 0;
2945
2946         if ($statefile) {
2947             if ($statefile eq 'tcp') {
2948                 $migrate_port = next_migrate_port();
2949                 my $migrate_uri = "tcp:localhost:${migrate_port}";
2950                 push @$cmd, '-incoming', $migrate_uri;
2951                 push @$cmd, '-S';
2952             } else {
2953                 push @$cmd, '-loadstate', $statefile;
2954             }
2955         } elsif ($paused) {
2956             push @$cmd, '-S';
2957         }
2958
2959         # host pci devices
2960         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2961           my $d = parse_hostpci($conf->{"hostpci$i"});
2962           next if !$d;
2963           my $info = pci_device_info("0000:$d->{pciid}");
2964           die "IOMMU not present\n" if !check_iommu_support();
2965           die "no pci device info for device '$d->{pciid}'\n" if !$info;
2966           die "can't unbind pci device '$d->{pciid}'\n" if !pci_dev_bind_to_stub($info);
2967           die "can't reset pci device '$d->{pciid}'\n" if !pci_dev_reset($info);
2968         }
2969
2970         PVE::Storage::activate_volumes($storecfg, $vollist);
2971
2972         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
2973                     umask => 0077); };
2974         my $err = $@;
2975         die "start failed: $err" if $err;
2976
2977         print "migration listens on port $migrate_port\n" if $migrate_port;
2978
2979         if ($statefile && $statefile ne 'tcp')  {
2980             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
2981             warn $@ if $@;
2982         }
2983
2984         if($migratedfrom) {
2985             my $capabilities = {};
2986             $capabilities->{capability} =  "xbzrle";
2987             $capabilities->{state} = JSON::true;
2988             eval { vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => [$capabilities]); };
2989         }
2990         else{
2991
2992             if (!defined($conf->{balloon}) || $conf->{balloon}) {
2993                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
2994                     if $conf->{balloon};
2995                 vm_mon_cmd_nocheck($vmid, 'qom-set',
2996                             path => "machine/peripheral/balloon0",
2997                             property => "guest-stats-polling-interval",
2998                             value => 2);
2999             }
3000         }
3001     });
3002 }
3003
3004 sub vm_mon_cmd {
3005     my ($vmid, $execute, %params) = @_;
3006
3007     my $cmd = { execute => $execute, arguments => \%params };
3008     vm_qmp_command($vmid, $cmd);
3009 }
3010
3011 sub vm_mon_cmd_nocheck {
3012     my ($vmid, $execute, %params) = @_;
3013
3014     my $cmd = { execute => $execute, arguments => \%params };
3015     vm_qmp_command($vmid, $cmd, 1);
3016 }
3017
3018 sub vm_qmp_command {
3019     my ($vmid, $cmd, $nocheck) = @_;
3020
3021     my $res;
3022
3023     my $timeout;
3024     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
3025         $timeout = $cmd->{arguments}->{timeout};
3026         delete $cmd->{arguments}->{timeout};
3027     }
3028
3029     eval {
3030         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3031         my $sname = qmp_socket($vmid);
3032         if (-e $sname) {
3033             my $qmpclient = PVE::QMPClient->new();
3034
3035             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
3036         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
3037             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
3038                 if scalar(%{$cmd->{arguments}});
3039             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
3040         } else {
3041             die "unable to open monitor socket\n";
3042         }
3043     };
3044     if (my $err = $@) {
3045         syslog("err", "VM $vmid qmp command failed - $err");
3046         die $err;
3047     }
3048
3049     return $res;
3050 }
3051
3052 sub vm_human_monitor_command {
3053     my ($vmid, $cmdline) = @_;
3054
3055     my $res;
3056
3057     my $cmd = {
3058         execute => 'human-monitor-command',
3059         arguments => { 'command-line' => $cmdline},
3060     };
3061
3062     return vm_qmp_command($vmid, $cmd);
3063 }
3064
3065 sub vm_commandline {
3066     my ($storecfg, $vmid) = @_;
3067
3068     my $conf = load_config($vmid);
3069
3070     my $defaults = load_defaults();
3071
3072     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
3073
3074     return join(' ', @$cmd);
3075 }
3076
3077 sub vm_reset {
3078     my ($vmid, $skiplock) = @_;
3079
3080     lock_config($vmid, sub {
3081
3082         my $conf = load_config($vmid);
3083
3084         check_lock($conf) if !$skiplock;
3085
3086         vm_mon_cmd($vmid, "system_reset");
3087     });
3088 }
3089
3090 sub get_vm_volumes {
3091     my ($conf) = @_;
3092
3093     my $vollist = [];
3094     foreach_volid($conf, sub {
3095         my ($volid, $is_cdrom) = @_;
3096
3097         return if $volid =~ m|^/|;
3098
3099         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
3100         return if !$sid;
3101
3102         push @$vollist, $volid;
3103     });
3104
3105     return $vollist;
3106 }
3107
3108 sub vm_stop_cleanup {
3109     my ($storecfg, $vmid, $conf, $keepActive) = @_;
3110
3111     eval {
3112         fairsched_rmnod($vmid); # try to destroy group
3113
3114         if (!$keepActive) {
3115             my $vollist = get_vm_volumes($conf);
3116             PVE::Storage::deactivate_volumes($storecfg, $vollist);
3117         }
3118
3119         foreach my $ext (qw(mon qmp pid vnc qga)) {
3120             unlink "/var/run/qemu-server/${vmid}.$ext";
3121         }
3122     };
3123     warn $@ if $@; # avoid errors - just warn
3124 }
3125
3126 # Note: use $nockeck to skip tests if VM configuration file exists.
3127 # We need that when migration VMs to other nodes (files already moved)
3128 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
3129 sub vm_stop {
3130     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
3131
3132     $force = 1 if !defined($force) && !$shutdown;
3133
3134     if ($migratedfrom){
3135         my $pid = check_running($vmid, $nocheck, $migratedfrom);
3136         kill 15, $pid if $pid;
3137         my $conf = load_config($vmid, $migratedfrom);
3138         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive);
3139         return;
3140     }
3141
3142     lock_config($vmid, sub {
3143
3144         my $pid = check_running($vmid, $nocheck);
3145         return if !$pid;
3146
3147         my $conf;
3148         if (!$nocheck) {
3149             $conf = load_config($vmid);
3150             check_lock($conf) if !$skiplock;
3151             if (!defined($timeout) && $shutdown && $conf->{startup}) {
3152                 my $opts = parse_startup($conf->{startup});
3153                 $timeout = $opts->{down} if $opts->{down};
3154             }
3155         }
3156
3157         $timeout = 60 if !defined($timeout);
3158
3159         eval {
3160             if ($shutdown) {
3161                 $nocheck ? vm_mon_cmd_nocheck($vmid, "system_powerdown") : vm_mon_cmd($vmid, "system_powerdown");
3162
3163             } else {
3164                 $nocheck ? vm_mon_cmd_nocheck($vmid, "quit") : vm_mon_cmd($vmid, "quit");
3165             }
3166         };
3167         my $err = $@;
3168
3169         if (!$err) {
3170             my $count = 0;
3171             while (($count < $timeout) && check_running($vmid, $nocheck)) {
3172                 $count++;
3173                 sleep 1;
3174             }
3175
3176             if ($count >= $timeout) {
3177                 if ($force) {
3178                     warn "VM still running - terminating now with SIGTERM\n";
3179                     kill 15, $pid;
3180                 } else {
3181                     die "VM quit/powerdown failed - got timeout\n";
3182                 }
3183             } else {
3184                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3185                 return;
3186             }
3187         } else {
3188             if ($force) {
3189                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
3190                 kill 15, $pid;
3191             } else {
3192                 die "VM quit/powerdown failed\n";
3193             }
3194         }
3195
3196         # wait again
3197         $timeout = 10;
3198
3199         my $count = 0;
3200         while (($count < $timeout) && check_running($vmid, $nocheck)) {
3201             $count++;
3202             sleep 1;
3203         }
3204
3205         if ($count >= $timeout) {
3206             warn "VM still running - terminating now with SIGKILL\n";
3207             kill 9, $pid;
3208             sleep 1;
3209         }
3210
3211         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3212    });
3213 }
3214
3215 sub vm_suspend {
3216     my ($vmid, $skiplock) = @_;
3217
3218     lock_config($vmid, sub {
3219
3220         my $conf = load_config($vmid);
3221
3222         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3223
3224         vm_mon_cmd($vmid, "stop");
3225     });
3226 }
3227
3228 sub vm_resume {
3229     my ($vmid, $skiplock) = @_;
3230
3231     lock_config($vmid, sub {
3232
3233         my $conf = load_config($vmid);
3234
3235         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3236
3237         vm_mon_cmd($vmid, "cont");
3238     });
3239 }
3240
3241 sub vm_sendkey {
3242     my ($vmid, $skiplock, $key) = @_;
3243
3244     lock_config($vmid, sub {
3245
3246         my $conf = load_config($vmid);
3247
3248         # there is no qmp command, so we use the human monitor command
3249         vm_human_monitor_command($vmid, "sendkey $key");
3250     });
3251 }
3252
3253 sub vm_destroy {
3254     my ($storecfg, $vmid, $skiplock) = @_;
3255
3256     lock_config($vmid, sub {
3257
3258         my $conf = load_config($vmid);
3259
3260         check_lock($conf) if !$skiplock;
3261
3262         if (!check_running($vmid)) {
3263             fairsched_rmnod($vmid); # try to destroy group
3264             destroy_vm($storecfg, $vmid);
3265         } else {
3266             die "VM $vmid is running - destroy failed\n";
3267         }
3268     });
3269 }
3270
3271 # pci helpers
3272
3273 sub file_write {
3274     my ($filename, $buf) = @_;
3275
3276     my $fh = IO::File->new($filename, "w");
3277     return undef if !$fh;
3278
3279     my $res = print $fh $buf;
3280
3281     $fh->close();
3282
3283     return $res;
3284 }
3285
3286 sub pci_device_info {
3287     my ($name) = @_;
3288
3289     my $res;
3290
3291     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
3292     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
3293
3294     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
3295     return undef if !defined($irq) || $irq !~ m/^\d+$/;
3296
3297     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
3298     return undef if !defined($vendor) || $vendor !~ s/^0x//;
3299
3300     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
3301     return undef if !defined($product) || $product !~ s/^0x//;
3302
3303     $res = {
3304         name => $name,
3305         vendor => $vendor,
3306         product => $product,
3307         domain => $domain,
3308         bus => $bus,
3309         slot => $slot,
3310         func => $func,
3311         irq => $irq,
3312         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
3313     };
3314
3315     return $res;
3316 }
3317
3318 sub pci_dev_reset {
3319     my ($dev) = @_;
3320
3321     my $name = $dev->{name};
3322
3323     my $fn = "$pcisysfs/devices/$name/reset";
3324
3325     return file_write($fn, "1");
3326 }
3327
3328 sub pci_dev_bind_to_stub {
3329     my ($dev) = @_;
3330
3331     my $name = $dev->{name};
3332
3333     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
3334     return 1 if -d $testdir;
3335
3336     my $data = "$dev->{vendor} $dev->{product}";
3337     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
3338
3339     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3340     if (!file_write($fn, $name)) {
3341         return undef if -f $fn;
3342     }
3343
3344     $fn = "$pcisysfs/drivers/pci-stub/bind";
3345     if (! -d $testdir) {
3346         return undef if !file_write($fn, $name);
3347     }
3348
3349     return -d $testdir;
3350 }
3351
3352 sub print_pci_addr {
3353     my ($id, $bridges) = @_;
3354
3355     my $res = '';
3356     my $devices = {
3357         #addr1 : ide,parallel,serial (motherboard)
3358         #addr2 : first videocard
3359         balloon0 => { bus => 0, addr => 3 },
3360         watchdog => { bus => 0, addr => 4 },
3361         scsihw0 => { bus => 0, addr => 5 },
3362         scsihw1 => { bus => 0, addr => 6 },
3363         ahci0 => { bus => 0, addr => 7 },
3364         qga0 => { bus => 0, addr => 8 },
3365         virtio0 => { bus => 0, addr => 10 },
3366         virtio1 => { bus => 0, addr => 11 },
3367         virtio2 => { bus => 0, addr => 12 },
3368         virtio3 => { bus => 0, addr => 13 },
3369         virtio4 => { bus => 0, addr => 14 },
3370         virtio5 => { bus => 0, addr => 15 },
3371         hostpci0 => { bus => 0, addr => 16 },
3372         hostpci1 => { bus => 0, addr => 17 },
3373         net0 => { bus => 0, addr => 18 },
3374         net1 => { bus => 0, addr => 19 },
3375         net2 => { bus => 0, addr => 20 },
3376         net3 => { bus => 0, addr => 21 },
3377         net4 => { bus => 0, addr => 22 },
3378         net5 => { bus => 0, addr => 23 },
3379         #addr29 : usb-host (pve-usb.cfg)
3380         'pci.1' => { bus => 0, addr => 30 },
3381         'pci.2' => { bus => 0, addr => 31 },
3382         'net6' => { bus => 1, addr => 1 },
3383         'net7' => { bus => 1, addr => 2 },
3384         'net8' => { bus => 1, addr => 3 },
3385         'net9' => { bus => 1, addr => 4 },
3386         'net10' => { bus => 1, addr => 5 },
3387         'net11' => { bus => 1, addr => 6 },
3388         'net12' => { bus => 1, addr => 7 },
3389         'net13' => { bus => 1, addr => 8 },
3390         'net14' => { bus => 1, addr => 9 },
3391         'net15' => { bus => 1, addr => 10 },
3392         'net16' => { bus => 1, addr => 11 },
3393         'net17' => { bus => 1, addr => 12 },
3394         'net18' => { bus => 1, addr => 13 },
3395         'net19' => { bus => 1, addr => 14 },
3396         'net20' => { bus => 1, addr => 15 },
3397         'net21' => { bus => 1, addr => 16 },
3398         'net22' => { bus => 1, addr => 17 },
3399         'net23' => { bus => 1, addr => 18 },
3400         'net24' => { bus => 1, addr => 19 },
3401         'net25' => { bus => 1, addr => 20 },
3402         'net26' => { bus => 1, addr => 21 },
3403         'net27' => { bus => 1, addr => 22 },
3404         'net28' => { bus => 1, addr => 23 },
3405         'net29' => { bus => 1, addr => 24 },
3406         'net30' => { bus => 1, addr => 25 },
3407         'net31' => { bus => 1, addr => 26 },
3408         'virtio6' => { bus => 2, addr => 1 },
3409         'virtio7' => { bus => 2, addr => 2 },
3410         'virtio8' => { bus => 2, addr => 3 },
3411         'virtio9' => { bus => 2, addr => 4 },
3412         'virtio10' => { bus => 2, addr => 5 },
3413         'virtio11' => { bus => 2, addr => 6 },
3414         'virtio12' => { bus => 2, addr => 7 },
3415         'virtio13' => { bus => 2, addr => 8 },
3416         'virtio14' => { bus => 2, addr => 9 },
3417         'virtio15' => { bus => 2, addr => 10 },
3418     };
3419
3420     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3421            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3422            my $bus = $devices->{$id}->{bus};
3423            $res = ",bus=pci.$bus,addr=$addr";
3424            $bridges->{$bus} = 1 if $bridges;
3425     }
3426     return $res;
3427
3428 }
3429
3430 # vzdump restore implementaion
3431
3432 sub tar_archive_read_firstfile {
3433     my $archive = shift;
3434
3435     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
3436
3437     # try to detect archive type first
3438     my $pid = open (TMP, "tar tf '$archive'|") ||
3439         die "unable to open file '$archive'\n";
3440     my $firstfile = <TMP>;
3441     kill 15, $pid;
3442     close TMP;
3443
3444     die "ERROR: archive contaions no data\n" if !$firstfile;
3445     chomp $firstfile;
3446
3447     return $firstfile;
3448 }
3449
3450 sub tar_restore_cleanup {
3451     my ($storecfg, $statfile) = @_;
3452
3453     print STDERR "starting cleanup\n";
3454
3455     if (my $fd = IO::File->new($statfile, "r")) {
3456         while (defined(my $line = <$fd>)) {
3457             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3458                 my $volid = $2;
3459                 eval {
3460                     if ($volid =~ m|^/|) {
3461                         unlink $volid || die 'unlink failed\n';
3462                     } else {
3463                         PVE::Storage::vdisk_free($storecfg, $volid);
3464                     }
3465                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
3466                 };
3467                 print STDERR "unable to cleanup '$volid' - $@" if $@;
3468             } else {
3469                 print STDERR "unable to parse line in statfile - $line";
3470             }
3471         }
3472         $fd->close();
3473     }
3474 }
3475
3476 sub restore_archive {
3477     my ($archive, $vmid, $user, $opts) = @_;
3478
3479     my $format = $opts->{format};
3480     my $comp;
3481
3482     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
3483         $format = 'tar' if !$format;
3484         $comp = 'gzip';
3485     } elsif ($archive =~ m/\.tar$/) {
3486         $format = 'tar' if !$format;
3487     } elsif ($archive =~ m/.tar.lzo$/) {
3488         $format = 'tar' if !$format;
3489         $comp = 'lzop';
3490     } elsif ($archive =~ m/\.vma$/) {
3491         $format = 'vma' if !$format;
3492     } elsif ($archive =~ m/\.vma\.gz$/) {
3493         $format = 'vma' if !$format;
3494         $comp = 'gzip';
3495     } elsif ($archive =~ m/\.vma\.lzo$/) {
3496         $format = 'vma' if !$format;
3497         $comp = 'lzop';
3498     } else {
3499         $format = 'vma' if !$format; # default
3500     }
3501
3502     # try to detect archive format
3503     if ($format eq 'tar') {
3504         return restore_tar_archive($archive, $vmid, $user, $opts);
3505     } else {
3506         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
3507     }
3508 }
3509
3510 sub restore_update_config_line {
3511     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
3512
3513     return if $line =~ m/^\#qmdump\#/;
3514     return if $line =~ m/^\#vzdump\#/;
3515     return if $line =~ m/^lock:/;
3516     return if $line =~ m/^unused\d+:/;
3517     return if $line =~ m/^parent:/;
3518
3519     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
3520         # try to convert old 1.X settings
3521         my ($id, $ind, $ethcfg) = ($1, $2, $3);
3522         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
3523             my ($model, $macaddr) = split(/\=/, $devconfig);
3524             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
3525             my $net = {
3526                 model => $model,
3527                 bridge => "vmbr$ind",
3528                 macaddr => $macaddr,
3529             };
3530             my $netstr = print_net($net);
3531
3532             print $outfd "net$cookie->{netcount}: $netstr\n";
3533             $cookie->{netcount}++;
3534         }
3535     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
3536         my ($id, $netstr) = ($1, $2);
3537         my $net = parse_net($netstr);
3538         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
3539         $netstr = print_net($net);
3540         print $outfd "$id: $netstr\n";
3541     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
3542         my $virtdev = $1;
3543         my $value = $3;
3544         if ($line =~ m/backup=no/) {
3545             print $outfd "#$line";
3546         } elsif ($virtdev && $map->{$virtdev}) {
3547             my $di = parse_drive($virtdev, $value);
3548             $di->{file} = $map->{$virtdev};
3549             $value = print_drive($vmid, $di);
3550             print $outfd "$virtdev: $value\n";
3551         } else {
3552             print $outfd $line;
3553         }
3554     } else {
3555         print $outfd $line;
3556     }
3557 }
3558
3559 sub scan_volids {
3560     my ($cfg, $vmid) = @_;
3561
3562     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
3563
3564     my $volid_hash = {};
3565     foreach my $storeid (keys %$info) {
3566         foreach my $item (@{$info->{$storeid}}) {
3567             next if !($item->{volid} && $item->{size});
3568             $volid_hash->{$item->{volid}} = $item;
3569         }
3570     }
3571
3572     return $volid_hash;
3573 }
3574
3575 sub update_disksize {
3576     my ($vmid, $conf, $volid_hash) = @_;
3577
3578     my $changes;
3579
3580     my $used = {};
3581
3582     # update size info
3583     foreach my $opt (keys %$conf) {
3584         if (valid_drivename($opt)) {
3585             my $drive = parse_drive($opt, $conf->{$opt});
3586             my $volid = $drive->{file};
3587             next if !$volid;
3588
3589             $used->{$volid} = 1;
3590
3591             next if drive_is_cdrom($drive);
3592             next if !$volid_hash->{$volid};
3593
3594             $drive->{size} = $volid_hash->{$volid}->{size};
3595             $changes = 1;
3596             $conf->{$opt} = print_drive($vmid, $drive);
3597         }
3598     }
3599
3600     foreach my $volid (sort keys %$volid_hash) {
3601         next if $volid =~ m/vm-$vmid-state-/;
3602         next if $used->{$volid};
3603         $changes = 1;
3604         add_unused_volume($conf, $volid);
3605     }
3606
3607     return $changes;
3608 }
3609
3610 sub rescan {
3611     my ($vmid, $nolock) = @_;
3612
3613     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
3614
3615     my $volid_hash = scan_volids($cfg, $vmid);
3616
3617     my $updatefn =  sub {
3618         my ($vmid) = @_;
3619
3620         my $conf = load_config($vmid);
3621
3622         check_lock($conf);
3623
3624         my $changes = update_disksize($vmid, $conf, $volid_hash);
3625
3626         update_config_nolock($vmid, $conf, 1) if $changes;
3627     };
3628
3629     if (defined($vmid)) {
3630         if ($nolock) {
3631             &$updatefn($vmid);
3632         } else {
3633             lock_config($vmid, $updatefn, $vmid);
3634         }
3635     } else {
3636         my $vmlist = config_list();
3637         foreach my $vmid (keys %$vmlist) {
3638             if ($nolock) {
3639                 &$updatefn($vmid);
3640             } else {
3641                 lock_config($vmid, $updatefn, $vmid);
3642             }
3643         }
3644     }
3645 }
3646
3647 sub restore_vma_archive {
3648     my ($archive, $vmid, $user, $opts, $comp) = @_;
3649
3650     my $input = $archive eq '-' ? "<&STDIN" : undef;
3651     my $readfrom = $archive;
3652
3653     my $uncomp = '';
3654     if ($comp) {
3655         $readfrom = '-';
3656         my $qarchive = PVE::Tools::shellquote($archive);
3657         if ($comp eq 'gzip') {
3658             $uncomp = "zcat $qarchive|";
3659         } elsif ($comp eq 'lzop') {
3660             $uncomp = "lzop -d -c $qarchive|";
3661         } else {
3662             die "unknown compression method '$comp'\n";
3663         }
3664
3665     }
3666
3667     my $tmpdir = "/var/tmp/vzdumptmp$$";
3668     rmtree $tmpdir;
3669
3670     # disable interrupts (always do cleanups)
3671     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3672         warn "got interrupt - ignored\n";
3673     };
3674
3675     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
3676     POSIX::mkfifo($mapfifo, 0600);
3677     my $fifofh;
3678
3679     my $openfifo = sub {
3680         open($fifofh, '>', $mapfifo) || die $!;
3681     };
3682
3683     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
3684
3685     my $oldtimeout;
3686     my $timeout = 5;
3687
3688     my $devinfo = {};
3689
3690     my $rpcenv = PVE::RPCEnvironment::get();
3691
3692     my $conffile = config_file($vmid);
3693     my $tmpfn = "$conffile.$$.tmp";
3694
3695     # Note: $oldconf is undef if VM does not exists
3696     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
3697
3698     my $print_devmap = sub {
3699         my $virtdev_hash = {};
3700
3701         my $cfgfn = "$tmpdir/qemu-server.conf";
3702
3703         # we can read the config - that is already extracted
3704         my $fh = IO::File->new($cfgfn, "r") ||
3705             "unable to read qemu-server.conf - $!\n";
3706
3707         while (defined(my $line = <$fh>)) {
3708             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
3709                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
3710                 die "archive does not contain data for drive '$virtdev'\n"
3711                     if !$devinfo->{$devname};
3712                 if (defined($opts->{storage})) {
3713                     $storeid = $opts->{storage} || 'local';
3714                 } elsif (!$storeid) {
3715                     $storeid = 'local';
3716                 }
3717                 $format = 'raw' if !$format;
3718                 $devinfo->{$devname}->{devname} = $devname;
3719                 $devinfo->{$devname}->{virtdev} = $virtdev;
3720                 $devinfo->{$devname}->{format} = $format;
3721                 $devinfo->{$devname}->{storeid} = $storeid;
3722
3723                 # check permission on storage
3724                 my $pool = $opts->{pool}; # todo: do we need that?
3725                 if ($user ne 'root@pam') {
3726                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
3727                 }
3728
3729                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
3730             }
3731         }
3732
3733         foreach my $devname (keys %$devinfo) {
3734             die "found no device mapping information for device '$devname'\n"
3735                 if !$devinfo->{$devname}->{virtdev};
3736         }
3737
3738         my $cfg = cfs_read_file('storage.cfg');
3739
3740         # create empty/temp config
3741         if ($oldconf) {
3742             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
3743             foreach_drive($oldconf, sub {
3744                 my ($ds, $drive) = @_;
3745
3746                 return if drive_is_cdrom($drive);
3747
3748                 my $volid = $drive->{file};
3749
3750                 return if !$volid || $volid =~ m|^/|;
3751
3752                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
3753                 return if !$path || !$owner || ($owner != $vmid);
3754
3755                 # Note: only delete disk we want to restore
3756                 # other volumes will become unused
3757                 if ($virtdev_hash->{$ds}) {
3758                     PVE::Storage::vdisk_free($cfg, $volid);
3759                 }
3760             });
3761         }
3762
3763         my $map = {};
3764         foreach my $virtdev (sort keys %$virtdev_hash) {
3765             my $d = $virtdev_hash->{$virtdev};
3766             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
3767             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
3768             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
3769                                                   $d->{format}, undef, $alloc_size);
3770             print STDERR "new volume ID is '$volid'\n";
3771             $d->{volid} = $volid;
3772             my $path = PVE::Storage::path($cfg, $volid);
3773
3774             my $write_zeros = 1;
3775             # fixme: what other storages types initialize volumes with zero?
3776             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs') {
3777                 $write_zeros = 0;
3778             }
3779
3780             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
3781
3782             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
3783             $map->{$virtdev} = $volid;
3784         }
3785
3786         $fh->seek(0, 0) || die "seek failed - $!\n";
3787
3788         my $outfd = new IO::File ($tmpfn, "w") ||
3789             die "unable to write config for VM $vmid\n";
3790
3791         my $cookie = { netcount => 0 };
3792         while (defined(my $line = <$fh>)) {
3793             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3794         }
3795
3796         $fh->close();
3797         $outfd->close();
3798     };
3799
3800     eval {
3801         # enable interrupts
3802         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3803             die "interrupted by signal\n";
3804         };
3805         local $SIG{ALRM} = sub { die "got timeout\n"; };
3806
3807         $oldtimeout = alarm($timeout);
3808
3809         my $parser = sub {
3810             my $line = shift;
3811
3812             print "$line\n";
3813
3814             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
3815                 my ($dev_id, $size, $devname) = ($1, $2, $3);
3816                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
3817             } elsif ($line =~ m/^CTIME: /) {
3818                 &$print_devmap();
3819                 print $fifofh "done\n";
3820                 my $tmp = $oldtimeout || 0;
3821                 $oldtimeout = undef;
3822                 alarm($tmp);
3823                 close($fifofh);
3824             }
3825         };
3826
3827         print "restore vma archive: $cmd\n";
3828         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
3829     };
3830     my $err = $@;
3831
3832     alarm($oldtimeout) if $oldtimeout;
3833
3834     unlink $mapfifo;
3835
3836     if ($err) {
3837         rmtree $tmpdir;
3838         unlink $tmpfn;
3839
3840         my $cfg = cfs_read_file('storage.cfg');
3841         foreach my $devname (keys %$devinfo) {
3842             my $volid = $devinfo->{$devname}->{volid};
3843             next if !$volid;
3844             eval {
3845                 if ($volid =~ m|^/|) {
3846                     unlink $volid || die 'unlink failed\n';
3847                 } else {
3848                     PVE::Storage::vdisk_free($cfg, $volid);
3849                 }
3850                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
3851             };
3852             print STDERR "unable to cleanup '$volid' - $@" if $@;
3853         }
3854         die $err;
3855     }
3856
3857     rmtree $tmpdir;
3858
3859     rename($tmpfn, $conffile) ||
3860         die "unable to commit configuration file '$conffile'\n";
3861
3862     PVE::Cluster::cfs_update(); # make sure we read new file
3863
3864     eval { rescan($vmid, 1); };
3865     warn $@ if $@;
3866 }
3867
3868 sub restore_tar_archive {
3869     my ($archive, $vmid, $user, $opts) = @_;
3870
3871     if ($archive ne '-') {
3872         my $firstfile = tar_archive_read_firstfile($archive);
3873         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
3874             if $firstfile ne 'qemu-server.conf';
3875     }
3876
3877     my $storecfg = cfs_read_file('storage.cfg');
3878
3879     # destroy existing data - keep empty config
3880     my $vmcfgfn = PVE::QemuServer::config_file($vmid);
3881     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
3882
3883     my $tocmd = "/usr/lib/qemu-server/qmextract";
3884
3885     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
3886     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
3887     $tocmd .= ' --prealloc' if $opts->{prealloc};
3888     $tocmd .= ' --info' if $opts->{info};
3889
3890     # tar option "xf" does not autodetect compression when read from STDIN,
3891     # so we pipe to zcat
3892     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
3893         PVE::Tools::shellquote("--to-command=$tocmd");
3894
3895     my $tmpdir = "/var/tmp/vzdumptmp$$";
3896     mkpath $tmpdir;
3897
3898     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
3899     local $ENV{VZDUMP_VMID} = $vmid;
3900     local $ENV{VZDUMP_USER} = $user;
3901
3902     my $conffile = config_file($vmid);
3903     my $tmpfn = "$conffile.$$.tmp";
3904
3905     # disable interrupts (always do cleanups)
3906     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3907         print STDERR "got interrupt - ignored\n";
3908     };
3909
3910     eval {
3911         # enable interrupts
3912         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3913             die "interrupted by signal\n";
3914         };
3915
3916         if ($archive eq '-') {
3917             print "extracting archive from STDIN\n";
3918             run_command($cmd, input => "<&STDIN");
3919         } else {
3920             print "extracting archive '$archive'\n";
3921             run_command($cmd);
3922         }
3923
3924         return if $opts->{info};
3925
3926         # read new mapping
3927         my $map = {};
3928         my $statfile = "$tmpdir/qmrestore.stat";
3929         if (my $fd = IO::File->new($statfile, "r")) {
3930             while (defined (my $line = <$fd>)) {
3931                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3932                     $map->{$1} = $2 if $1;
3933                 } else {
3934                     print STDERR "unable to parse line in statfile - $line\n";
3935                 }
3936             }
3937             $fd->close();
3938         }
3939
3940         my $confsrc = "$tmpdir/qemu-server.conf";
3941
3942         my $srcfd = new IO::File($confsrc, "r") ||
3943             die "unable to open file '$confsrc'\n";
3944
3945         my $outfd = new IO::File ($tmpfn, "w") ||
3946             die "unable to write config for VM $vmid\n";
3947
3948         my $cookie = { netcount => 0 };
3949         while (defined (my $line = <$srcfd>)) {
3950             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3951         }
3952
3953         $srcfd->close();
3954         $outfd->close();
3955     };
3956     my $err = $@;
3957
3958     if ($err) {
3959
3960         unlink $tmpfn;
3961
3962         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
3963
3964         die $err;
3965     }
3966
3967     rmtree $tmpdir;
3968
3969     rename $tmpfn, $conffile ||
3970         die "unable to commit configuration file '$conffile'\n";
3971
3972     PVE::Cluster::cfs_update(); # make sure we read new file
3973
3974     eval { rescan($vmid, 1); };
3975     warn $@ if $@;
3976 };
3977
3978
3979 # Internal snapshots
3980
3981 # NOTE: Snapshot create/delete involves several non-atomic
3982 # action, and can take a long time.
3983 # So we try to avoid locking the file and use 'lock' variable
3984 # inside the config file instead.
3985
3986 my $snapshot_copy_config = sub {
3987     my ($source, $dest) = @_;
3988
3989     foreach my $k (keys %$source) {
3990         next if $k eq 'snapshots';
3991         next if $k eq 'snapstate';
3992         next if $k eq 'snaptime';
3993         next if $k eq 'vmstate';
3994         next if $k eq 'lock';
3995         next if $k eq 'digest';
3996         next if $k eq 'description';
3997         next if $k =~ m/^unused\d+$/;
3998
3999         $dest->{$k} = $source->{$k};
4000     }
4001 };
4002
4003 my $snapshot_apply_config = sub {
4004     my ($conf, $snap) = @_;
4005
4006     # copy snapshot list
4007     my $newconf = {
4008         snapshots => $conf->{snapshots},
4009     };
4010
4011     # keep description and list of unused disks
4012     foreach my $k (keys %$conf) {
4013         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
4014         $newconf->{$k} = $conf->{$k};
4015     }
4016
4017     &$snapshot_copy_config($snap, $newconf);
4018
4019     return $newconf;
4020 };
4021
4022 sub foreach_writable_storage {
4023     my ($conf, $func) = @_;
4024
4025     my $sidhash = {};
4026
4027     foreach my $ds (keys %$conf) {
4028         next if !valid_drivename($ds);
4029
4030         my $drive = parse_drive($ds, $conf->{$ds});
4031         next if !$drive;
4032         next if drive_is_cdrom($drive);
4033
4034         my $volid = $drive->{file};
4035
4036         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4037         $sidhash->{$sid} = $sid if $sid;
4038     }
4039
4040     foreach my $sid (sort keys %$sidhash) {
4041         &$func($sid);
4042     }
4043 }
4044
4045 my $alloc_vmstate_volid = sub {
4046     my ($storecfg, $vmid, $conf, $snapname) = @_;
4047
4048     # Note: we try to be smart when selecting a $target storage
4049
4050     my $target;
4051
4052     # search shared storage first
4053     foreach_writable_storage($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 || $scfg->{path}; # prefer file based storage
4059     });
4060
4061     if (!$target) {
4062         # now search local storage
4063         foreach_writable_storage($conf, sub {
4064             my ($sid) = @_;
4065             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4066             return if $scfg->{shared};
4067
4068             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
4069         });
4070     }
4071
4072     $target = 'local' if !$target;
4073
4074     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
4075     # we abort live save after $conf->{memory}, so we need at max twice that space
4076     my $size = $conf->{memory}*2 + $driver_state_size;
4077
4078     my $name = "vm-$vmid-state-$snapname";
4079     my $scfg = PVE::Storage::storage_config($storecfg, $target);
4080     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
4081     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
4082
4083     return $volid;
4084 };
4085
4086 my $snapshot_prepare = sub {
4087     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
4088
4089     my $snap;
4090
4091     my $updatefn =  sub {
4092
4093         my $conf = load_config($vmid);
4094
4095         die "you can't take a snapshot if it's a template"
4096             if is_template($conf);
4097
4098         check_lock($conf);
4099
4100         $conf->{lock} = 'snapshot';
4101
4102         die "snapshot name '$snapname' already used\n"
4103             if defined($conf->{snapshots}->{$snapname});
4104
4105         my $storecfg = PVE::Storage::config();
4106         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
4107
4108         $snap = $conf->{snapshots}->{$snapname} = {};
4109
4110         if ($save_vmstate && check_running($vmid)) {
4111             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
4112         }
4113
4114         &$snapshot_copy_config($conf, $snap);
4115
4116         $snap->{snapstate} = "prepare";
4117         $snap->{snaptime} = time();
4118         $snap->{description} = $comment if $comment;
4119
4120         update_config_nolock($vmid, $conf, 1);
4121     };
4122
4123     lock_config($vmid, $updatefn);
4124
4125     return $snap;
4126 };
4127
4128 my $snapshot_commit = sub {
4129     my ($vmid, $snapname) = @_;
4130
4131     my $updatefn = sub {
4132
4133         my $conf = load_config($vmid);
4134
4135         die "missing snapshot lock\n"
4136             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
4137
4138         my $snap = $conf->{snapshots}->{$snapname};
4139
4140         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4141
4142         die "wrong snapshot state\n"
4143             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
4144
4145         delete $snap->{snapstate};
4146         delete $conf->{lock};
4147
4148         my $newconf = &$snapshot_apply_config($conf, $snap);
4149
4150         $newconf->{parent} = $snapname;
4151
4152         update_config_nolock($vmid, $newconf, 1);
4153     };
4154
4155     lock_config($vmid, $updatefn);
4156 };
4157
4158 sub snapshot_rollback {
4159     my ($vmid, $snapname) = @_;
4160
4161     my $snap;
4162
4163     my $prepare = 1;
4164
4165     my $storecfg = PVE::Storage::config();
4166
4167     my $updatefn = sub {
4168
4169         my $conf = load_config($vmid);
4170
4171         die "you can't rollback if vm is a template" if is_template($conf);
4172
4173         $snap = $conf->{snapshots}->{$snapname};
4174
4175         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4176
4177         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
4178             if $snap->{snapstate};
4179
4180         if ($prepare) {
4181             check_lock($conf);
4182             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
4183         }
4184
4185         die "unable to rollback vm $vmid: vm is running\n"
4186             if check_running($vmid);
4187
4188         if ($prepare) {
4189             $conf->{lock} = 'rollback';
4190         } else {
4191             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
4192             delete $conf->{lock};
4193         }
4194
4195         if (!$prepare) {
4196             # copy snapshot config to current config
4197             $conf = &$snapshot_apply_config($conf, $snap);
4198             $conf->{parent} = $snapname;
4199         }
4200
4201         update_config_nolock($vmid, $conf, 1);
4202
4203         if (!$prepare && $snap->{vmstate}) {
4204             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
4205             vm_start($storecfg, $vmid, $statefile);
4206         }
4207     };
4208
4209     lock_config($vmid, $updatefn);
4210
4211     foreach_drive($snap, sub {
4212         my ($ds, $drive) = @_;
4213
4214         return if drive_is_cdrom($drive);
4215
4216         my $volid = $drive->{file};
4217         my $device = "drive-$ds";
4218
4219         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
4220     });
4221
4222     $prepare = 0;
4223     lock_config($vmid, $updatefn);
4224 }
4225
4226 my $savevm_wait = sub {
4227     my ($vmid) = @_;
4228
4229     for(;;) {
4230         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
4231         if (!$stat->{status}) {
4232             die "savevm not active\n";
4233         } elsif ($stat->{status} eq 'active') {
4234             sleep(1);
4235             next;
4236         } elsif ($stat->{status} eq 'completed') {
4237             last;
4238         } else {
4239             die "query-savevm returned status '$stat->{status}'\n";
4240         }
4241     }
4242 };
4243
4244 sub snapshot_create {
4245     my ($vmid, $snapname, $save_vmstate, $freezefs, $comment) = @_;
4246
4247     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
4248
4249     $freezefs = $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
4250
4251     my $drivehash = {};
4252
4253     my $running = check_running($vmid);
4254
4255     eval {
4256         # create internal snapshots of all drives
4257
4258         my $storecfg = PVE::Storage::config();
4259
4260         if ($running) {
4261             if ($snap->{vmstate}) {
4262                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
4263                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
4264                 &$savevm_wait($vmid);
4265             } else {
4266                 vm_mon_cmd($vmid, "savevm-start");
4267             }
4268         };
4269
4270         qga_freezefs($vmid) if $running && $freezefs;
4271
4272         foreach_drive($snap, sub {
4273             my ($ds, $drive) = @_;
4274
4275             return if drive_is_cdrom($drive);
4276
4277             my $volid = $drive->{file};
4278             my $device = "drive-$ds";
4279
4280             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
4281             $drivehash->{$ds} = 1;
4282        });
4283     };
4284     my $err = $@;
4285
4286     eval { gqa_unfreezefs($vmid) if $running && $freezefs; };
4287     warn $@ if $@;
4288
4289     eval { vm_mon_cmd($vmid, "savevm-end") if $running; };
4290     warn $@ if $@;
4291
4292     if ($err) {
4293         warn "snapshot create failed: starting cleanup\n";
4294         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
4295         warn $@ if $@;
4296         die $err;
4297     }
4298
4299     &$snapshot_commit($vmid, $snapname);
4300 }
4301
4302 # Note: $drivehash is only set when called from snapshot_create.
4303 sub snapshot_delete {
4304     my ($vmid, $snapname, $force, $drivehash) = @_;
4305
4306     my $prepare = 1;
4307
4308     my $snap;
4309     my $unused = [];
4310
4311     my $unlink_parent = sub {
4312         my ($confref, $new_parent) = @_;
4313
4314         if ($confref->{parent} && $confref->{parent} eq $snapname) {
4315             if ($new_parent) {
4316                 $confref->{parent} = $new_parent;
4317             } else {
4318                 delete $confref->{parent};
4319             }
4320         }
4321     };
4322
4323     my $updatefn =  sub {
4324         my ($remove_drive) = @_;
4325
4326         my $conf = load_config($vmid);
4327
4328         if (!$drivehash) {
4329             check_lock($conf);
4330             die "you can't delete a snapshot if vm is a template"
4331                 if is_template($conf);
4332         }
4333
4334         $snap = $conf->{snapshots}->{$snapname};
4335
4336         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4337
4338         # remove parent refs
4339         &$unlink_parent($conf, $snap->{parent});
4340         foreach my $sn (keys %{$conf->{snapshots}}) {
4341             next if $sn eq $snapname;
4342             &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
4343         }
4344
4345         if ($remove_drive) {
4346             if ($remove_drive eq 'vmstate') {
4347                 delete $snap->{$remove_drive};
4348             } else {
4349                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
4350                 my $volid = $drive->{file};
4351                 delete $snap->{$remove_drive};
4352                 add_unused_volume($conf, $volid);
4353             }
4354         }
4355
4356         if ($prepare) {
4357             $snap->{snapstate} = 'delete';
4358         } else {
4359             delete $conf->{snapshots}->{$snapname};
4360             delete $conf->{lock} if $drivehash;
4361             foreach my $volid (@$unused) {
4362                 add_unused_volume($conf, $volid);
4363             }
4364         }
4365
4366         update_config_nolock($vmid, $conf, 1);
4367     };
4368
4369     lock_config($vmid, $updatefn);
4370
4371     # now remove vmstate file
4372
4373     my $storecfg = PVE::Storage::config();
4374
4375     if ($snap->{vmstate}) {
4376         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
4377         if (my $err = $@) {
4378             die $err if !$force;
4379             warn $err;
4380         }
4381         # save changes (remove vmstate from snapshot)
4382         lock_config($vmid, $updatefn, 'vmstate') if !$force;
4383     };
4384
4385     # now remove all internal snapshots
4386     foreach_drive($snap, sub {
4387         my ($ds, $drive) = @_;
4388
4389         return if drive_is_cdrom($drive);
4390
4391         my $volid = $drive->{file};
4392         my $device = "drive-$ds";
4393
4394         if (!$drivehash || $drivehash->{$ds}) {
4395             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
4396             if (my $err = $@) {
4397                 die $err if !$force;
4398                 warn $err;
4399             }
4400         }
4401
4402         # save changes (remove drive fron snapshot)
4403         lock_config($vmid, $updatefn, $ds) if !$force;
4404         push @$unused, $volid;
4405     });
4406
4407     # now cleanup config
4408     $prepare = 0;
4409     lock_config($vmid, $updatefn);
4410 }
4411
4412 sub has_feature{
4413     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
4414
4415     my $err = undef;
4416     foreach_drive($conf, sub {
4417         my ($ds, $drive) = @_;
4418
4419         return if drive_is_cdrom($drive);
4420         my $volid = $drive->{file};
4421         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
4422     });
4423
4424     return 1 if !$err;
4425 }
4426
4427 sub template_create {
4428     my ($vmid, $conf, $disk) = @_;
4429
4430     my $running = check_running($vmid);
4431     die "you can't convert a vm to template if vm is running vm" if $running;
4432
4433     my $storecfg = PVE::Storage::config();
4434     my $i = 0;
4435
4436     foreach_drive($conf, sub {
4437         my ($ds, $drive) = @_;
4438
4439         return if drive_is_cdrom($drive);
4440         return if $disk && $ds ne $disk;
4441
4442         my $volid = $drive->{file};
4443         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
4444         $drive->{file} = $voliddst;
4445         $conf->{$ds} = PVE::QemuServer::print_drive($vmid, $drive);
4446         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4447
4448     });
4449     if($conf->{snapshots}){
4450         delete $conf->{parent};
4451         delete $conf->{snapshots};
4452         PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
4453         #fixme : do we need to delete disks snapshots ?
4454     }
4455 }
4456
4457 sub is_template {
4458     my ($conf) = @_;
4459
4460     my $baseimagecount = 0;
4461     my $totalvolumecount = 0;
4462     my $storecfg = PVE::Storage::config();
4463
4464     foreach_drive($conf, sub {
4465         my ($ds, $drive) = @_;
4466         return if drive_is_cdrom($drive);
4467         $totalvolumecount++;
4468         my $volid = $drive->{file};
4469         if (PVE::Storage::volume_is_base($storecfg, $volid)){
4470             $baseimagecount++;
4471         }
4472
4473     });
4474
4475     return undef if $baseimagecount == 0;
4476
4477     return 1 if $baseimagecount == $totalvolumecount; #full template
4478     return 2 if $baseimagecount < $totalvolumecount; #semi-template
4479
4480 }
4481
4482 1;