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 lock_file_full 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 => "Allow 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. Option 'qxl' enables the SPICE display sever.",
 339         enum => [qw(std cirrus vmware qxl)],
 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     template => {
 362         optional => 1,
 363         type => 'boolean',
 364         description => "Enable/disable Template.",
 365         default => 0,
 366     },
 367     args => {
 368         optional => 1,
 369         type => 'string',
 370         description => <<EODESCR,
 371 Note: this option is for experts only. It allows you to pass arbitrary arguments to kvm, for example:
 372
 373 args: -no-reboot -no-hpet
 374 EODESCR
 375     },
 376     tablet => {
 377         optional => 1,
 378         type => 'boolean',
 379         default => 1,
 380         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.",
 381     },
 382     migrate_speed => {
 383         optional => 1,
 384         type => 'integer',
 385         description => "Set maximum speed (in MB/s) for migrations. Value 0 is no limit.",
 386         minimum => 0,
 387         default => 0,
 388     },
 389     migrate_downtime => {
 390         optional => 1,
 391         type => 'number',
 392         description => "Set maximum tolerated downtime (in seconds) for migrations.",
 393         minimum => 0,
 394         default => 0.1,
 395     },
 396     cdrom => {
 397         optional => 1,
 398         type => 'string', format => 'pve-qm-drive',
 399         typetext => 'volume',
 400         description => "This is an alias for option -ide2",
 401     },
 402     cpu => {
 403         optional => 1,
 404         description => "Emulated CPU type.",
 405         type => 'string',
 406         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) ],
 407         default => 'kvm64',
 408     },
 409     parent => get_standard_option('pve-snapshot-name', {
 410         optional => 1,
 411         description => "Parent snapshot name. This is used internally, and should not be modified.",
 412     }),
 413     snaptime => {
 414         optional => 1,
 415         description => "Timestamp for snapshots.",
 416         type => 'integer',
 417         minimum => 0,
 418     },
 419     vmstate => {
 420         optional => 1,
 421         type => 'string', format => 'pve-volume-id',
 422         description => "Reference to a volume which stores the VM state. This is used internally for snapshots.",
 423     },
 424     machine => {
 425         description => "Specific the Qemu machine type.",
 426         type => 'string',
 427         pattern => '(pc|pc(-i440fx)?-\d+\.\d+|q35|pc-q35-\d+\.\d+)',
 428         maxLength => 40,
 429         optional => 1,
 430     },
 431 };
 432
 433 # what about other qemu settings ?
 434 #cpu => 'string',
 435 #machine => 'string',
 436 #fda => 'file',
 437 #fdb => 'file',
 438 #mtdblock => 'file',
 439 #sd => 'file',
 440 #pflash => 'file',
 441 #snapshot => 'bool',
 442 #bootp => 'file',
 443 ##tftp => 'dir',
 444 ##smb => 'dir',
 445 #kernel => 'file',
 446 #append => 'string',
 447 #initrd => 'file',
 448 ##soundhw => 'string',
 449
 450 while (my ($k, $v) = each %$confdesc) {
 451     PVE::JSONSchema::register_standard_option("pve-qm-$k", $v);
 452 }
 453
 454 my $MAX_IDE_DISKS = 4;
 455 my $MAX_SCSI_DISKS = 14;
 456 my $MAX_VIRTIO_DISKS = 16;
 457 my $MAX_SATA_DISKS = 6;
 458 my $MAX_USB_DEVICES = 5;
 459 my $MAX_NETS = 32;
 460 my $MAX_UNUSED_DISKS = 8;
 461 my $MAX_HOSTPCI_DEVICES = 2;
 462 my $MAX_SERIAL_PORTS = 4;
 463 my $MAX_PARALLEL_PORTS = 3;
 464
 465 my $nic_model_list = ['rtl8139', 'ne2k_pci', 'e1000',  'pcnet',  'virtio',
 466                       'ne2k_isa', 'i82551', 'i82557b', 'i82559er'];
 467 my $nic_model_list_txt = join(' ', sort @$nic_model_list);
 468
 469 my $netdesc = {
 470     optional => 1,
 471     type => 'string', format => 'pve-qm-net',
 472     typetext => "MODEL=XX:XX:XX:XX:XX:XX [,bridge=<dev>][,rate=<mbps>][,tag=<vlanid>]",
 473     description => <<EODESCR,
 474 Specify network devices.
 475
 476 MODEL is one of: $nic_model_list_txt
 477
 478 XX:XX:XX:XX:XX:XX should be an unique MAC address. This is
 479 automatically generated if not specified.
 480
 481 The bridge parameter can be used to automatically add the interface to a bridge device. The Proxmox VE standard bridge is called 'vmbr0'.
 482
 483 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'.
 484
 485 If you specify no bridge, we create a kvm 'user' (NATed) network device, which provides DHCP and DNS services. The following addresses are used:
 486
 487 10.0.2.2   Gateway
 488 10.0.2.3   DNS Server
 489 10.0.2.4   SMB Server
 490
 491 The DHCP server assign addresses to the guest starting from 10.0.2.15.
 492
 493 EODESCR
 494 };
 495 PVE::JSONSchema::register_standard_option("pve-qm-net", $netdesc);
 496
 497 for (my $i = 0; $i < $MAX_NETS; $i++)  {
 498     $confdesc->{"net$i"} = $netdesc;
 499 }
 500
 501 my $drivename_hash;
 502
 503 my $idedesc = {
 504     optional => 1,
 505     type => 'string', format => 'pve-qm-drive',
 506     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 507     description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").",
 508 };
 509 PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc);
 510
 511 my $scsidesc = {
 512     optional => 1,
 513     type => 'string', format => 'pve-qm-drive',
 514     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 515     description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").",
 516 };
 517 PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc);
 518
 519 my $satadesc = {
 520     optional => 1,
 521     type => 'string', format => 'pve-qm-drive',
 522     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 523     description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").",
 524 };
 525 PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc);
 526
 527 my $virtiodesc = {
 528     optional => 1,
 529     type => 'string', format => 'pve-qm-drive',
 530     typetext => '[volume=]volume,] [,media=cdrom|disk] [,cyls=c,heads=h,secs=s[,trans=t]] [,snapshot=on|off] [,cache=none|writethrough|writeback|unsafe|directsync] [,format=f] [,backup=yes|no] [,rerror=ignore|report|stop] [,werror=enospc|ignore|report|stop] [,aio=native|threads]',
 531     description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").",
 532 };
 533 PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc);
 534
 535 my $usbdesc = {
 536     optional => 1,
 537     type => 'string', format => 'pve-qm-usb-device',
 538     typetext => 'host=HOSTUSBDEVICE',
 539     description => <<EODESCR,
 540 Configure an USB device (n is 0 to 4). This can be used to
 541 pass-through usb devices to the guest. HOSTUSBDEVICE syntax is:
 542
 543 'bus-port(.port)*' (decimal numbers) or
 544 'vendor_id:product_id' (hexadeciaml numbers)
 545
 546 You can use the 'lsusb -t' command to list existing usb devices.
 547
 548 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 549
 550 EODESCR
 551 };
 552 PVE::JSONSchema::register_standard_option("pve-qm-usb", $usbdesc);
 553
 554 my $hostpcidesc = {
 555         optional => 1,
 556         type => 'string', format => 'pve-qm-hostpci',
 557         typetext => "HOSTPCIDEVICE",
 558         description => <<EODESCR,
 559 Map host pci devices. HOSTPCIDEVICE syntax is:
 560
 561 'bus:dev.func' (hexadecimal numbers)
 562
 563 You can us the 'lspci' command to list existing pci devices.
 564
 565 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 566
 567 Experimental: user reported problems with this option.
 568 EODESCR
 569 };
 570 PVE::JSONSchema::register_standard_option("pve-qm-hostpci", $hostpcidesc);
 571
 572 my $serialdesc = {
 573         optional => 1,
 574         type => 'string',
 575         pattern => '/dev/ttyS\d+',
 576         description =>  <<EODESCR,
 577 Map host serial devices (n is 0 to 3).
 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 my $paralleldesc= {
 586         optional => 1,
 587         type => 'string',
 588         pattern => '/dev/parport\d+',
 589         description =>  <<EODESCR,
 590 Map host parallel devices (n is 0 to 2).
 591
 592 Note: This option allows direct access to host hardware. So it is no longer possible to migrate such machines - use with special care.
 593
 594 Experimental: user reported problems with this option.
 595 EODESCR
 596 };
 597
 598 for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
 599     $confdesc->{"parallel$i"} = $paralleldesc;
 600 }
 601
 602 for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
 603     $confdesc->{"serial$i"} = $serialdesc;
 604 }
 605
 606 for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
 607     $confdesc->{"hostpci$i"} = $hostpcidesc;
 608 }
 609
 610 for (my $i = 0; $i < $MAX_IDE_DISKS; $i++)  {
 611     $drivename_hash->{"ide$i"} = 1;
 612     $confdesc->{"ide$i"} = $idedesc;
 613 }
 614
 615 for (my $i = 0; $i < $MAX_SATA_DISKS; $i++)  {
 616     $drivename_hash->{"sata$i"} = 1;
 617     $confdesc->{"sata$i"} = $satadesc;
 618 }
 619
 620 for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++)  {
 621     $drivename_hash->{"scsi$i"} = 1;
 622     $confdesc->{"scsi$i"} = $scsidesc ;
 623 }
 624
 625 for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++)  {
 626     $drivename_hash->{"virtio$i"} = 1;
 627     $confdesc->{"virtio$i"} = $virtiodesc;
 628 }
 629
 630 for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
 631     $confdesc->{"usb$i"} = $usbdesc;
 632 }
 633
 634 my $unuseddesc = {
 635     optional => 1,
 636     type => 'string', format => 'pve-volume-id',
 637     description => "Reference to unused volumes.",
 638 };
 639
 640 for (my $i = 0; $i < $MAX_UNUSED_DISKS; $i++)  {
 641     $confdesc->{"unused$i"} = $unuseddesc;
 642 }
 643
 644 my $kvm_api_version = 0;
 645
 646 sub kvm_version {
 647
 648     return $kvm_api_version if $kvm_api_version;
 649
 650     my $fh = IO::File->new("</dev/kvm") ||
 651         return 0;
 652
 653     if (my $v = $fh->ioctl(KVM_GET_API_VERSION(), 0)) {
 654         $kvm_api_version = $v;
 655     }
 656
 657     $fh->close();
 658
 659     return  $kvm_api_version;
 660 }
 661
 662 my $kvm_user_version;
 663
 664 sub kvm_user_version {
 665
 666     return $kvm_user_version if $kvm_user_version;
 667
 668     $kvm_user_version = 'unknown';
 669
 670     my $tmp = `kvm -help 2>/dev/null`;
 671
 672     if ($tmp =~ m/^QEMU( PC)? emulator version (\d+\.\d+(\.\d+)?)[,\s]/) {
 673         $kvm_user_version = $2;
 674     }
 675
 676     return $kvm_user_version;
 677
 678 }
 679
 680 my $kernel_has_vhost_net = -c '/dev/vhost-net';
 681
 682 sub disknames {
 683     # order is important - used to autoselect boot disk
 684     return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))),
 685             (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))),
 686             (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))),
 687             (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))));
 688 }
 689
 690 sub valid_drivename {
 691     my $dev = shift;
 692
 693     return defined($drivename_hash->{$dev});
 694 }
 695
 696 sub option_exists {
 697     my $key = shift;
 698     return defined($confdesc->{$key});
 699 }
 700
 701 sub nic_models {
 702     return $nic_model_list;
 703 }
 704
 705 sub os_list_description {
 706
 707     return {
 708         other => 'Other',
 709         wxp => 'Windows XP',
 710         w2k => 'Windows 2000',
 711         w2k3 =>, 'Windows 2003',
 712         w2k8 => 'Windows 2008',
 713         wvista => 'Windows Vista',
 714         win7 => 'Windows 7',
 715         win8 => 'Windows 8/2012',
 716         l24 => 'Linux 2.4',
 717         l26 => 'Linux 2.6',
 718     };
 719 }
 720
 721 my $cdrom_path;
 722
 723 sub get_cdrom_path {
 724
 725     return  $cdrom_path if $cdrom_path;
 726
 727     return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
 728     return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
 729     return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
 730 }
 731
 732 sub get_iso_path {
 733     my ($storecfg, $vmid, $cdrom) = @_;
 734
 735     if ($cdrom eq 'cdrom') {
 736         return get_cdrom_path();
 737     } elsif ($cdrom eq 'none') {
 738         return '';
 739     } elsif ($cdrom =~ m|^/|) {
 740         return $cdrom;
 741     } else {
 742         return PVE::Storage::path($storecfg, $cdrom);
 743     }
 744 }
 745
 746 # try to convert old style file names to volume IDs
 747 sub filename_to_volume_id {
 748     my ($vmid, $file, $media) = @_;
 749
 750     if (!($file eq 'none' || $file eq 'cdrom' ||
 751           $file =~ m|^/dev/.+| || $file =~ m/^([^:]+):(.+)$/)) {
 752
 753         return undef if $file =~ m|/|;
 754
 755         if ($media && $media eq 'cdrom') {
 756             $file = "local:iso/$file";
 757         } else {
 758             $file = "local:$vmid/$file";
 759         }
 760     }
 761
 762     return $file;
 763 }
 764
 765 sub verify_media_type {
 766     my ($opt, $vtype, $media) = @_;
 767
 768     return if !$media;
 769
 770     my $etype;
 771     if ($media eq 'disk') {
 772         $etype = 'images';
 773     } elsif ($media eq 'cdrom') {
 774         $etype = 'iso';
 775     } else {
 776         die "internal error";
 777     }
 778
 779     return if ($vtype eq $etype);
 780
 781     raise_param_exc({ $opt => "unexpected media type ($vtype != $etype)" });
 782 }
 783
 784 sub cleanup_drive_path {
 785     my ($opt, $storecfg, $drive) = @_;
 786
 787     # try to convert filesystem paths to volume IDs
 788
 789     if (($drive->{file} !~ m/^(cdrom|none)$/) &&
 790         ($drive->{file} !~ m|^/dev/.+|) &&
 791         ($drive->{file} !~ m/^([^:]+):(.+)$/) &&
 792         ($drive->{file} !~ m/^\d+$/)) {
 793         my ($vtype, $volid) = PVE::Storage::path_to_volume_id($storecfg, $drive->{file});
 794         raise_param_exc({ $opt => "unable to associate path '$drive->{file}' to any storage"}) if !$vtype;
 795         $drive->{media} = 'cdrom' if !$drive->{media} && $vtype eq 'iso';
 796         verify_media_type($opt, $vtype, $drive->{media});
 797         $drive->{file} = $volid;
 798     }
 799
 800     $drive->{media} = 'cdrom' if !$drive->{media} && $drive->{file} =~ m/^(cdrom|none)$/;
 801 }
 802
 803 sub create_conf_nolock {
 804     my ($vmid, $settings) = @_;
 805
 806     my $filename = config_file($vmid);
 807
 808     die "configuration file '$filename' already exists\n" if -f $filename;
 809
 810     my $defaults = load_defaults();
 811
 812     $settings->{name} = "vm$vmid" if !$settings->{name};
 813     $settings->{memory} = $defaults->{memory} if !$settings->{memory};
 814
 815     my $data = '';
 816     foreach my $opt (keys %$settings) {
 817         next if !$confdesc->{$opt};
 818
 819         my $value = $settings->{$opt};
 820         next if !$value;
 821
 822         $data .= "$opt: $value\n";
 823     }
 824
 825     PVE::Tools::file_set_contents($filename, $data);
 826 }
 827
 828 my $parse_size = sub {
 829     my ($value) = @_;
 830
 831     return undef if $value !~ m/^(\d+(\.\d+)?)([KMG])?$/;
 832     my ($size, $unit) = ($1, $3);
 833     if ($unit) {
 834         if ($unit eq 'K') {
 835             $size = $size * 1024;
 836         } elsif ($unit eq 'M') {
 837             $size = $size * 1024 * 1024;
 838         } elsif ($unit eq 'G') {
 839             $size = $size * 1024 * 1024 * 1024;
 840         }
 841     }
 842     return int($size);
 843 };
 844
 845 my $format_size = sub {
 846     my ($size) = @_;
 847
 848     $size = int($size);
 849
 850     my $kb = int($size/1024);
 851     return $size if $kb*1024 != $size;
 852
 853     my $mb = int($kb/1024);
 854     return "${kb}K" if $mb*1024 != $kb;
 855
 856     my $gb = int($mb/1024);
 857     return "${mb}M" if $gb*1024 != $mb;
 858
 859     return "${gb}G";
 860 };
 861
 862 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 863 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 864 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
 865 #        [,aio=native|threads]
 866
 867 sub parse_drive {
 868     my ($key, $data) = @_;
 869
 870     my $res = {};
 871
 872     # $key may be undefined - used to verify JSON parameters
 873     if (!defined($key)) {
 874         $res->{interface} = 'unknown'; # should not harm when used to verify parameters
 875         $res->{index} = 0;
 876     } elsif ($key =~ m/^([^\d]+)(\d+)$/) {
 877         $res->{interface} = $1;
 878         $res->{index} = $2;
 879     } else {
 880         return undef;
 881     }
 882
 883     foreach my $p (split (/,/, $data)) {
 884         next if $p =~ m/^\s*$/;
 885
 886         if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|bps_rd|mbps_rd|bps_wr|mbps_wr|iops|iops_rd|iops_wr|size)=(.+)$/) {
 887             my ($k, $v) = ($1, $2);
 888
 889             $k = 'file' if $k eq 'volume';
 890
 891             return undef if defined $res->{$k};
 892
 893             if ($k eq 'bps' || $k eq 'bps_rd' || $k eq 'bps_wr') {
 894                 return undef if !$v || $v !~ m/^\d+/;
 895                 $k = "m$k";
 896                 $v = sprintf("%.3f", $v / (1024*1024));
 897             }
 898             $res->{$k} = $v;
 899         } else {
 900             if (!$res->{file} && $p !~ m/=/) {
 901                 $res->{file} = $p;
 902             } else {
 903                 return undef;
 904             }
 905         }
 906     }
 907
 908     return undef if !$res->{file};
 909
 910     if($res->{file} =~ m/\.(raw|cow|qcow|qcow2|vmdk|cloop)$/){
 911         $res->{format} = $1;
 912     }
 913
 914     return undef if $res->{cache} &&
 915         $res->{cache} !~ m/^(off|none|writethrough|writeback|unsafe|directsync)$/;
 916     return undef if $res->{snapshot} && $res->{snapshot} !~ m/^(on|off)$/;
 917     return undef if $res->{cyls} && $res->{cyls} !~ m/^\d+$/;
 918     return undef if $res->{heads} && $res->{heads} !~ m/^\d+$/;
 919     return undef if $res->{secs} && $res->{secs} !~ m/^\d+$/;
 920     return undef if $res->{media} && $res->{media} !~ m/^(disk|cdrom)$/;
 921     return undef if $res->{trans} && $res->{trans} !~ m/^(none|lba|auto)$/;
 922     return undef if $res->{format} && $res->{format} !~ m/^(raw|cow|qcow|qcow2|vmdk|cloop)$/;
 923     return undef if $res->{rerror} && $res->{rerror} !~ m/^(ignore|report|stop)$/;
 924     return undef if $res->{werror} && $res->{werror} !~ m/^(enospc|ignore|report|stop)$/;
 925     return undef if $res->{backup} && $res->{backup} !~ m/^(yes|no)$/;
 926     return undef if $res->{aio} && $res->{aio} !~ m/^(native|threads)$/;
 927
 928
 929     return undef if $res->{mbps_rd} && $res->{mbps};
 930     return undef if $res->{mbps_wr} && $res->{mbps};
 931
 932     return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
 933     return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
 934     return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
 935
 936     return undef if $res->{iops_rd} && $res->{iops};
 937     return undef if $res->{iops_wr} && $res->{iops};
 938     return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
 939     return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
 940     return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
 941
 942
 943     if ($res->{size}) {
 944         return undef if !defined($res->{size} = &$parse_size($res->{size}));
 945     }
 946
 947     if ($res->{media} && ($res->{media} eq 'cdrom')) {
 948         return undef if $res->{snapshot} || $res->{trans} || $res->{format};
 949         return undef if $res->{heads} || $res->{secs} || $res->{cyls};
 950         return undef if $res->{interface} eq 'virtio';
 951     }
 952
 953     # rerror does not work with scsi drives
 954     if ($res->{rerror}) {
 955         return undef if $res->{interface} eq 'scsi';
 956     }
 957
 958     return $res;
 959 }
 960
 961 my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio iops iops_rd iops_wr);
 962
 963 sub print_drive {
 964     my ($vmid, $drive) = @_;
 965
 966     my $opts = '';
 967     foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'backup') {
 968         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
 969     }
 970
 971     if ($drive->{size}) {
 972         $opts .= ",size=" . &$format_size($drive->{size});
 973     }
 974
 975     return "$drive->{file}$opts";
 976 }
 977
 978 sub scsi_inquiry {
 979     my($fh, $noerr) = @_;
 980
 981     my $SG_IO = 0x2285;
 982     my $SG_GET_VERSION_NUM = 0x2282;
 983
 984     my $versionbuf = "\x00" x 8;
 985     my $ret = ioctl($fh, $SG_GET_VERSION_NUM, $versionbuf);
 986     if (!$ret) {
 987         die "scsi ioctl SG_GET_VERSION_NUM failoed - $!\n" if !$noerr;
 988         return undef;
 989     }
 990     my $version = unpack("I", $versionbuf);
 991     if ($version < 30000) {
 992         die "scsi generic interface too old\n"  if !$noerr;
 993         return undef;
 994     }
 995
 996     my $buf = "\x00" x 36;
 997     my $sensebuf = "\x00" x 8;
 998     my $cmd = pack("C x3 C x11", 0x12, 36);
 999
1000     # see /usr/include/scsi/sg.h
1001     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";
1002
1003     my $packet = pack($sg_io_hdr_t, ord('S'), -3, length($cmd),
1004                       length($sensebuf), 0, length($buf), $buf,
1005                       $cmd, $sensebuf, 6000);
1006
1007     $ret = ioctl($fh, $SG_IO, $packet);
1008     if (!$ret) {
1009         die "scsi ioctl SG_IO failed - $!\n" if !$noerr;
1010         return undef;
1011     }
1012
1013     my @res = unpack($sg_io_hdr_t, $packet);
1014     if ($res[17] || $res[18]) {
1015         die "scsi ioctl SG_IO status error - $!\n" if !$noerr;
1016         return undef;
1017     }
1018
1019     my $res = {};
1020     ($res->{device}, $res->{removable}, $res->{venodor},
1021      $res->{product}, $res->{revision}) = unpack("C C x6 A8 A16 A4", $buf);
1022
1023     return $res;
1024 }
1025
1026 sub path_is_scsi {
1027     my ($path) = @_;
1028
1029     my $fh = IO::File->new("+<$path") || return undef;
1030     my $res = scsi_inquiry($fh, 1);
1031     close($fh);
1032
1033     return $res;
1034 }
1035
1036 sub print_drivedevice_full {
1037     my ($storecfg, $conf, $vmid, $drive, $bridges) = @_;
1038
1039     my $device = '';
1040     my $maxdev = 0;
1041
1042     if ($drive->{interface} eq 'virtio') {
1043         my $pciaddr = print_pci_addr("$drive->{interface}$drive->{index}", $bridges);
1044         $device = "virtio-blk-pci,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}$pciaddr";
1045     } elsif ($drive->{interface} eq 'scsi') {
1046         $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
1047         my $controller = int($drive->{index} / $maxdev);
1048         my $unit = $drive->{index} % $maxdev;
1049         my $devicetype = 'hd';
1050         my $path = '';
1051         if (drive_is_cdrom($drive)) {
1052               $devicetype = 'cd';
1053           } else {
1054               if ($drive->{file} =~ m|^/|) {
1055                   $path = $drive->{file};
1056               } else {
1057                   $path = PVE::Storage::path($storecfg, $drive->{file});
1058               }
1059
1060               if($path =~ m/^iscsi\:\/\//){
1061                  $devicetype = 'generic';
1062               }
1063               else {
1064                  $devicetype = 'block' if path_is_scsi($path);
1065               }
1066          }
1067
1068         if (!$conf->{scsihw} || $conf->{scsihw} eq 'lsi'){
1069             $device = "scsi-$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';
1070         } else {
1071             $device = "scsi-$devicetype,bus=scsihw$controller.0,channel=0,scsi-id=0,lun=$drive->{index},drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1072         }
1073
1074     } elsif ($drive->{interface} eq 'ide'){
1075         $maxdev = 2;
1076         my $controller = int($drive->{index} / $maxdev);
1077         my $unit = $drive->{index} % $maxdev;
1078         my $devicetype = ($drive->{media} && $drive->{media} eq 'cdrom') ? "cd" : "hd";
1079
1080         $device = "ide-$devicetype,bus=ide.$controller,unit=$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1081     } elsif ($drive->{interface} eq 'sata'){
1082         my $controller = int($drive->{index} / $MAX_SATA_DISKS);
1083         my $unit = $drive->{index} % $MAX_SATA_DISKS;
1084         $device = "ide-drive,bus=ahci$controller.$unit,drive=drive-$drive->{interface}$drive->{index},id=$drive->{interface}$drive->{index}";
1085     } elsif ($drive->{interface} eq 'usb') {
1086         die "implement me";
1087         #  -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
1088     } else {
1089         die "unsupported interface type";
1090     }
1091
1092     $device .= ",bootindex=$drive->{bootindex}" if $drive->{bootindex};
1093
1094     return $device;
1095 }
1096
1097 sub print_drive_full {
1098     my ($storecfg, $vmid, $drive) = @_;
1099
1100     my $opts = '';
1101     foreach my $o (@qemu_drive_options) {
1102         next if $o eq 'bootindex';
1103         $opts .= ",$o=$drive->{$o}" if $drive->{$o};
1104     }
1105
1106     foreach my $o (qw(bps bps_rd bps_wr)) {
1107         my $v = $drive->{"m$o"};
1108         $opts .= ",$o=" . int($v*1024*1024) if $v;
1109     }
1110
1111     # use linux-aio by default (qemu default is threads)
1112     $opts .= ",aio=native" if !$drive->{aio};
1113
1114     my $path;
1115     my $volid = $drive->{file};
1116     if (drive_is_cdrom($drive)) {
1117         $path = get_iso_path($storecfg, $vmid, $volid);
1118     } else {
1119         if ($volid =~ m|^/|) {
1120             $path = $volid;
1121         } else {
1122             $path = PVE::Storage::path($storecfg, $volid);
1123         }
1124     }
1125
1126     $opts .= ",cache=none" if !$drive->{cache} && !drive_is_cdrom($drive);
1127
1128     my $pathinfo = $path ? "file=$path," : '';
1129
1130     return "${pathinfo}if=none,id=drive-$drive->{interface}$drive->{index}$opts";
1131 }
1132
1133 sub print_netdevice_full {
1134     my ($vmid, $conf, $net, $netid, $bridges) = @_;
1135
1136     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
1137
1138     my $device = $net->{model};
1139     if ($net->{model} eq 'virtio') {
1140          $device = 'virtio-net-pci';
1141      };
1142
1143     # qemu > 0.15 always try to boot from network - we disable that by
1144     # not loading the pxe rom file
1145     my $extra = ($bootorder !~ m/n/) ? "romfile=," : '';
1146     my $pciaddr = print_pci_addr("$netid", $bridges);
1147     my $tmpstr = "$device,${extra}mac=$net->{macaddr},netdev=$netid$pciaddr,id=$netid";
1148     $tmpstr .= ",bootindex=$net->{bootindex}" if $net->{bootindex} ;
1149     return $tmpstr;
1150 }
1151
1152 sub print_netdev_full {
1153     my ($vmid, $conf, $net, $netid) = @_;
1154
1155     my $i = '';
1156     if ($netid =~ m/^net(\d+)$/) {
1157         $i = int($1);
1158     }
1159
1160     die "got strange net id '$i'\n" if $i >= ${MAX_NETS};
1161
1162     my $ifname = "tap${vmid}i$i";
1163
1164     # kvm uses TUNSETIFF ioctl, and that limits ifname length
1165     die "interface name '$ifname' is too long (max 15 character)\n"
1166         if length($ifname) >= 16;
1167
1168     my $vhostparam = '';
1169     $vhostparam = ',vhost=on' if $kernel_has_vhost_net && $net->{model} eq 'virtio';
1170
1171     my $vmname = $conf->{name} || "vm$vmid";
1172
1173     if ($net->{bridge}) {
1174         return "type=tap,id=$netid,ifname=${ifname},script=/var/lib/qemu-server/pve-bridge$vhostparam";
1175     } else {
1176         return "type=user,id=$netid,hostname=$vmname";
1177     }
1178 }
1179
1180 sub drive_is_cdrom {
1181     my ($drive) = @_;
1182
1183     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
1184
1185 }
1186
1187 sub parse_hostpci {
1188     my ($value) = @_;
1189
1190     return undef if !$value;
1191
1192     my $res = {};
1193
1194     if ($value =~ m/^[a-f0-9]{2}:[a-f0-9]{2}\.[a-f0-9]$/) {
1195        $res->{pciid} = $value;
1196     } else {
1197        return undef;
1198     }
1199
1200     return $res;
1201 }
1202
1203 # netX: e1000=XX:XX:XX:XX:XX:XX,bridge=vmbr0,rate=<mbps>
1204 sub parse_net {
1205     my ($data) = @_;
1206
1207     my $res = {};
1208
1209     foreach my $kvp (split(/,/, $data)) {
1210
1211         if ($kvp =~ m/^(ne2k_pci|e1000|rtl8139|pcnet|virtio|ne2k_isa|i82551|i82557b|i82559er)(=([0-9a-f]{2}(:[0-9a-f]{2}){5}))?$/i) {
1212             my $model = lc($1);
1213             my $mac = defined($3) ? uc($3) : PVE::Tools::random_ether_addr();
1214             $res->{model} = $model;
1215             $res->{macaddr} = $mac;
1216         } elsif ($kvp =~ m/^bridge=(\S+)$/) {
1217             $res->{bridge} = $1;
1218         } elsif ($kvp =~ m/^rate=(\d+(\.\d+)?)$/) {
1219             $res->{rate} = $1;
1220         } elsif ($kvp =~ m/^tag=(\d+)$/) {
1221             $res->{tag} = $1;
1222         } else {
1223             return undef;
1224         }
1225
1226     }
1227
1228     return undef if !$res->{model};
1229
1230     return $res;
1231 }
1232
1233 sub print_net {
1234     my $net = shift;
1235
1236     my $res = "$net->{model}";
1237     $res .= "=$net->{macaddr}" if $net->{macaddr};
1238     $res .= ",bridge=$net->{bridge}" if $net->{bridge};
1239     $res .= ",rate=$net->{rate}" if $net->{rate};
1240     $res .= ",tag=$net->{tag}" if $net->{tag};
1241
1242     return $res;
1243 }
1244
1245 sub add_random_macs {
1246     my ($settings) = @_;
1247
1248     foreach my $opt (keys %$settings) {
1249         next if $opt !~ m/^net(\d+)$/;
1250         my $net = parse_net($settings->{$opt});
1251         next if !$net;
1252         $settings->{$opt} = print_net($net);
1253     }
1254 }
1255
1256 sub add_unused_volume {
1257     my ($config, $volid) = @_;
1258
1259     my $key;
1260     for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1261         my $test = "unused$ind";
1262         if (my $vid = $config->{$test}) {
1263             return if $vid eq $volid; # do not add duplicates
1264         } else {
1265             $key = $test;
1266         }
1267     }
1268
1269     die "To many unused volume - please delete them first.\n" if !$key;
1270
1271     $config->{$key} = $volid;
1272
1273     return $key;
1274 }
1275
1276 PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk);
1277 sub verify_bootdisk {
1278     my ($value, $noerr) = @_;
1279
1280     return $value if valid_drivename($value);
1281
1282     return undef if $noerr;
1283
1284     die "invalid boot disk '$value'\n";
1285 }
1286
1287 PVE::JSONSchema::register_format('pve-qm-net', \&verify_net);
1288 sub verify_net {
1289     my ($value, $noerr) = @_;
1290
1291     return $value if parse_net($value);
1292
1293     return undef if $noerr;
1294
1295     die "unable to parse network options\n";
1296 }
1297
1298 PVE::JSONSchema::register_format('pve-qm-drive', \&verify_drive);
1299 sub verify_drive {
1300     my ($value, $noerr) = @_;
1301
1302     return $value if parse_drive(undef, $value);
1303
1304     return undef if $noerr;
1305
1306     die "unable to parse drive options\n";
1307 }
1308
1309 PVE::JSONSchema::register_format('pve-qm-hostpci', \&verify_hostpci);
1310 sub verify_hostpci {
1311     my ($value, $noerr) = @_;
1312
1313     return $value if parse_hostpci($value);
1314
1315     return undef if $noerr;
1316
1317     die "unable to parse pci id\n";
1318 }
1319
1320 PVE::JSONSchema::register_format('pve-qm-watchdog', \&verify_watchdog);
1321 sub verify_watchdog {
1322     my ($value, $noerr) = @_;
1323
1324     return $value if parse_watchdog($value);
1325
1326     return undef if $noerr;
1327
1328     die "unable to parse watchdog options\n";
1329 }
1330
1331 sub parse_watchdog {
1332     my ($value) = @_;
1333
1334     return undef if !$value;
1335
1336     my $res = {};
1337
1338     foreach my $p (split(/,/, $value)) {
1339         next if $p =~ m/^\s*$/;
1340
1341         if ($p =~ m/^(model=)?(i6300esb|ib700)$/) {
1342             $res->{model} = $2;
1343         } elsif ($p =~ m/^(action=)?(reset|shutdown|poweroff|pause|debug|none)$/) {
1344             $res->{action} = $2;
1345         } else {
1346             return undef;
1347         }
1348     }
1349
1350     return $res;
1351 }
1352
1353 PVE::JSONSchema::register_format('pve-qm-startup', \&verify_startup);
1354 sub verify_startup {
1355     my ($value, $noerr) = @_;
1356
1357     return $value if parse_startup($value);
1358
1359     return undef if $noerr;
1360
1361     die "unable to parse startup options\n";
1362 }
1363
1364 sub parse_startup {
1365     my ($value) = @_;
1366
1367     return undef if !$value;
1368
1369     my $res = {};
1370
1371     foreach my $p (split(/,/, $value)) {
1372         next if $p =~ m/^\s*$/;
1373
1374         if ($p =~ m/^(order=)?(\d+)$/) {
1375             $res->{order} = $2;
1376         } elsif ($p =~ m/^up=(\d+)$/) {
1377             $res->{up} = $1;
1378         } elsif ($p =~ m/^down=(\d+)$/) {
1379             $res->{down} = $1;
1380         } else {
1381             return undef;
1382         }
1383     }
1384
1385     return $res;
1386 }
1387
1388 sub parse_usb_device {
1389     my ($value) = @_;
1390
1391     return undef if !$value;
1392
1393     my @dl = split(/,/, $value);
1394     my $found;
1395
1396     my $res = {};
1397     foreach my $v (@dl) {
1398         if ($v =~ m/^host=(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
1399             $found = 1;
1400             $res->{vendorid} = $2;
1401             $res->{productid} = $4;
1402         } elsif ($v =~ m/^host=(\d+)\-(\d+(\.\d+)*)$/) {
1403             $found = 1;
1404             $res->{hostbus} = $1;
1405             $res->{hostport} = $2;
1406         } else {
1407             return undef;
1408         }
1409     }
1410     return undef if !$found;
1411
1412     return $res;
1413 }
1414
1415 PVE::JSONSchema::register_format('pve-qm-usb-device', \&verify_usb_device);
1416 sub verify_usb_device {
1417     my ($value, $noerr) = @_;
1418
1419     return $value if parse_usb_device($value);
1420
1421     return undef if $noerr;
1422
1423     die "unable to parse usb device\n";
1424 }
1425
1426 # add JSON properties for create and set function
1427 sub json_config_properties {
1428     my $prop = shift;
1429
1430     foreach my $opt (keys %$confdesc) {
1431         next if $opt eq 'parent' || $opt eq 'snaptime' || $opt eq 'vmstate';
1432         $prop->{$opt} = $confdesc->{$opt};
1433     }
1434
1435     return $prop;
1436 }
1437
1438 sub check_type {
1439     my ($key, $value) = @_;
1440
1441     die "unknown setting '$key'\n" if !$confdesc->{$key};
1442
1443     my $type = $confdesc->{$key}->{type};
1444
1445     if (!defined($value)) {
1446         die "got undefined value\n";
1447     }
1448
1449     if ($value =~ m/[\n\r]/) {
1450         die "property contains a line feed\n";
1451     }
1452
1453     if ($type eq 'boolean') {
1454         return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1455         return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1456         die "type check ('boolean') failed - got '$value'\n";
1457     } elsif ($type eq 'integer') {
1458         return int($1) if $value =~ m/^(\d+)$/;
1459         die "type check ('integer') failed - got '$value'\n";
1460     } elsif ($type eq 'number') {
1461         return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1462         die "type check ('number') failed - got '$value'\n";
1463     } elsif ($type eq 'string') {
1464         if (my $fmt = $confdesc->{$key}->{format}) {
1465             if ($fmt eq 'pve-qm-drive') {
1466                 # special case - we need to pass $key to parse_drive()
1467                 my $drive = parse_drive($key, $value);
1468                 return $value if $drive;
1469                 die "unable to parse drive options\n";
1470             }
1471             PVE::JSONSchema::check_format($fmt, $value);
1472             return $value;
1473         }
1474         $value =~ s/^\"(.*)\"$/$1/;
1475         return $value;
1476     } else {
1477         die "internal error"
1478     }
1479 }
1480
1481 sub lock_config_full {
1482     my ($vmid, $timeout, $code, @param) = @_;
1483
1484     my $filename = config_file_lock($vmid);
1485
1486     my $res = lock_file($filename, $timeout, $code, @param);
1487
1488     die $@ if $@;
1489
1490     return $res;
1491 }
1492
1493 sub lock_config_mode {
1494     my ($vmid, $timeout, $shared, $code, @param) = @_;
1495
1496     my $filename = config_file_lock($vmid);
1497
1498     my $res = lock_file_full($filename, $timeout, $shared, $code, @param);
1499
1500     die $@ if $@;
1501
1502     return $res;
1503 }
1504
1505 sub lock_config {
1506     my ($vmid, $code, @param) = @_;
1507
1508     return lock_config_full($vmid, 10, $code, @param);
1509 }
1510
1511 sub cfs_config_path {
1512     my ($vmid, $node) = @_;
1513
1514     $node = $nodename if !$node;
1515     return "nodes/$node/qemu-server/$vmid.conf";
1516 }
1517
1518 sub check_iommu_support{
1519     #fixme : need to check IOMMU support
1520     #http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
1521
1522     my $iommu=1;
1523     return $iommu;
1524
1525 }
1526
1527 sub config_file {
1528     my ($vmid, $node) = @_;
1529
1530     my $cfspath = cfs_config_path($vmid, $node);
1531     return "/etc/pve/$cfspath";
1532 }
1533
1534 sub config_file_lock {
1535     my ($vmid) = @_;
1536
1537     return "$lock_dir/lock-$vmid.conf";
1538 }
1539
1540 sub touch_config {
1541     my ($vmid) = @_;
1542
1543     my $conf = config_file($vmid);
1544     utime undef, undef, $conf;
1545 }
1546
1547 sub destroy_vm {
1548     my ($storecfg, $vmid, $keep_empty_config) = @_;
1549
1550     my $conffile = config_file($vmid);
1551
1552     my $conf = load_config($vmid);
1553
1554     check_lock($conf);
1555
1556     # only remove disks owned by this VM
1557     foreach_drive($conf, sub {
1558         my ($ds, $drive) = @_;
1559
1560         return if drive_is_cdrom($drive);
1561
1562         my $volid = $drive->{file};
1563
1564         return if !$volid || $volid =~ m|^/|;
1565
1566         my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
1567         return if !$path || !$owner || ($owner != $vmid);
1568
1569         PVE::Storage::vdisk_free($storecfg, $volid);
1570     });
1571
1572     if ($keep_empty_config) {
1573         PVE::Tools::file_set_contents($conffile, "memory: 128\n");
1574     } else {
1575         unlink $conffile;
1576     }
1577
1578     # also remove unused disk
1579     eval {
1580         my $dl = PVE::Storage::vdisk_list($storecfg, undef, $vmid);
1581
1582         eval {
1583             PVE::Storage::foreach_volid($dl, sub {
1584                 my ($volid, $sid, $volname, $d) = @_;
1585                 PVE::Storage::vdisk_free($storecfg, $volid);
1586             });
1587         };
1588         warn $@ if $@;
1589
1590     };
1591     warn $@ if $@;
1592 }
1593
1594 sub load_config {
1595     my ($vmid, $node) = @_;
1596
1597     my $cfspath = cfs_config_path($vmid, $node);
1598
1599     my $conf = PVE::Cluster::cfs_read_file($cfspath);
1600
1601     die "no such VM ('$vmid')\n" if !defined($conf);
1602
1603     return $conf;
1604 }
1605
1606 sub parse_vm_config {
1607     my ($filename, $raw) = @_;
1608
1609     return undef if !defined($raw);
1610
1611     my $res = {
1612         digest => Digest::SHA::sha1_hex($raw),
1613         snapshots => {},
1614     };
1615
1616     $filename =~ m|/qemu-server/(\d+)\.conf$|
1617         || die "got strange filename '$filename'";
1618
1619     my $vmid = $1;
1620
1621     my $conf = $res;
1622     my $descr = '';
1623
1624     my @lines = split(/\n/, $raw);
1625     foreach my $line (@lines) {
1626         next if $line =~ m/^\s*$/;
1627
1628         if ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
1629             my $snapname = $1;
1630             $conf->{description} = $descr if $descr;
1631             $descr = '';
1632             $conf = $res->{snapshots}->{$snapname} = {};
1633             next;
1634         }
1635
1636         if ($line =~ m/^\#(.*)\s*$/) {
1637             $descr .= PVE::Tools::decode_text($1) . "\n";
1638             next;
1639         }
1640
1641         if ($line =~ m/^(description):\s*(.*\S)\s*$/) {
1642             $descr .= PVE::Tools::decode_text($2);
1643         } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
1644             $conf->{snapstate} = $1;
1645         } elsif ($line =~ m/^(args):\s*(.*\S)\s*$/) {
1646             my $key = $1;
1647             my $value = $2;
1648             $conf->{$key} = $value;
1649         } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S+)\s*$/) {
1650             my $key = $1;
1651             my $value = $2;
1652             eval { $value = check_type($key, $value); };
1653             if ($@) {
1654                 warn "vm $vmid - unable to parse value of '$key' - $@";
1655             } else {
1656                 my $fmt = $confdesc->{$key}->{format};
1657                 if ($fmt && $fmt eq 'pve-qm-drive') {
1658                     my $v = parse_drive($key, $value);
1659                     if (my $volid = filename_to_volume_id($vmid, $v->{file}, $v->{media})) {
1660                         $v->{file} = $volid;
1661                         $value = print_drive($vmid, $v);
1662                     } else {
1663                         warn "vm $vmid - unable to parse value of '$key'\n";
1664                         next;
1665                     }
1666                 }
1667
1668                 if ($key eq 'cdrom') {
1669                     $conf->{ide2} = $value;
1670                 } else {
1671                     $conf->{$key} = $value;
1672                 }
1673             }
1674         }
1675     }
1676
1677     $conf->{description} = $descr if $descr;
1678
1679     delete $res->{snapstate}; # just to be sure
1680
1681     return $res;
1682 }
1683
1684 sub write_vm_config {
1685     my ($filename, $conf) = @_;
1686
1687     delete $conf->{snapstate}; # just to be sure
1688
1689     if ($conf->{cdrom}) {
1690         die "option ide2 conflicts with cdrom\n" if $conf->{ide2};
1691         $conf->{ide2} = $conf->{cdrom};
1692         delete $conf->{cdrom};
1693     }
1694
1695     # we do not use 'smp' any longer
1696     if ($conf->{sockets}) {
1697         delete $conf->{smp};
1698     } elsif ($conf->{smp}) {
1699         $conf->{sockets} = $conf->{smp};
1700         delete $conf->{cores};
1701         delete $conf->{smp};
1702     }
1703
1704     my $used_volids = {};
1705
1706     my $cleanup_config = sub {
1707         my ($cref, $snapname) = @_;
1708
1709         foreach my $key (keys %$cref) {
1710             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots' ||
1711                 $key eq 'snapstate';
1712             my $value = $cref->{$key};
1713             eval { $value = check_type($key, $value); };
1714             die "unable to parse value of '$key' - $@" if $@;
1715
1716             $cref->{$key} = $value;
1717
1718             if (!$snapname && valid_drivename($key)) {
1719                 my $drive = parse_drive($key, $value);
1720                 $used_volids->{$drive->{file}} = 1 if $drive && $drive->{file};
1721             }
1722         }
1723     };
1724
1725     &$cleanup_config($conf);
1726     foreach my $snapname (keys %{$conf->{snapshots}}) {
1727         &$cleanup_config($conf->{snapshots}->{$snapname}, $snapname);
1728     }
1729
1730     # remove 'unusedX' settings if we re-add a volume
1731     foreach my $key (keys %$conf) {
1732         my $value = $conf->{$key};
1733         if ($key =~ m/^unused/ && $used_volids->{$value}) {
1734             delete $conf->{$key};
1735         }
1736     }
1737
1738     my $generate_raw_config = sub {
1739         my ($conf) = @_;
1740
1741         my $raw = '';
1742
1743         # add description as comment to top of file
1744         my $descr = $conf->{description} || '';
1745         foreach my $cl (split(/\n/, $descr)) {
1746             $raw .= '#' .  PVE::Tools::encode_text($cl) . "\n";
1747         }
1748
1749         foreach my $key (sort keys %$conf) {
1750             next if $key eq 'digest' || $key eq 'description' || $key eq 'snapshots';
1751             $raw .= "$key: $conf->{$key}\n";
1752         }
1753         return $raw;
1754     };
1755
1756     my $raw = &$generate_raw_config($conf);
1757     foreach my $snapname (sort keys %{$conf->{snapshots}}) {
1758         $raw .= "\n[$snapname]\n";
1759         $raw .= &$generate_raw_config($conf->{snapshots}->{$snapname});
1760     }
1761
1762     return $raw;
1763 }
1764
1765 sub update_config_nolock {
1766     my ($vmid, $conf, $skiplock) = @_;
1767
1768     check_lock($conf) if !$skiplock;
1769
1770     my $cfspath = cfs_config_path($vmid);
1771
1772     PVE::Cluster::cfs_write_file($cfspath, $conf);
1773 }
1774
1775 sub update_config {
1776     my ($vmid, $conf, $skiplock) = @_;
1777
1778     lock_config($vmid, &update_config_nolock, $conf, $skiplock);
1779 }
1780
1781 sub load_defaults {
1782
1783     my $res = {};
1784
1785     # we use static defaults from our JSON schema configuration
1786     foreach my $key (keys %$confdesc) {
1787         if (defined(my $default = $confdesc->{$key}->{default})) {
1788             $res->{$key} = $default;
1789         }
1790     }
1791
1792     my $conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
1793     $res->{keyboard} = $conf->{keyboard} if $conf->{keyboard};
1794
1795     return $res;
1796 }
1797
1798 sub config_list {
1799     my $vmlist = PVE::Cluster::get_vmlist();
1800     my $res = {};
1801     return $res if !$vmlist || !$vmlist->{ids};
1802     my $ids = $vmlist->{ids};
1803
1804     foreach my $vmid (keys %$ids) {
1805         my $d = $ids->{$vmid};
1806         next if !$d->{node} || $d->{node} ne $nodename;
1807         next if !$d->{type} || $d->{type} ne 'qemu';
1808         $res->{$vmid}->{exists} = 1;
1809     }
1810     return $res;
1811 }
1812
1813 # test if VM uses local resources (to prevent migration)
1814 sub check_local_resources {
1815     my ($conf, $noerr) = @_;
1816
1817     my $loc_res = 0;
1818
1819     $loc_res = 1 if $conf->{hostusb}; # old syntax
1820     $loc_res = 1 if $conf->{hostpci}; # old syntax
1821
1822     foreach my $k (keys %$conf) {
1823         $loc_res = 1 if $k =~ m/^(usb|hostpci|serial|parallel)\d+$/;
1824     }
1825
1826     die "VM uses local resources\n" if $loc_res && !$noerr;
1827
1828     return $loc_res;
1829 }
1830
1831 # check if used storages are available on all nodes (use by migrate)
1832 sub check_storage_availability {
1833     my ($storecfg, $conf, $node) = @_;
1834
1835     foreach_drive($conf, sub {
1836         my ($ds, $drive) = @_;
1837
1838         my $volid = $drive->{file};
1839         return if !$volid;
1840
1841         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
1842         return if !$sid;
1843
1844         # check if storage is available on both nodes
1845         my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
1846         PVE::Storage::storage_check_node($storecfg, $sid, $node);
1847    });
1848 }
1849
1850 # list nodes where all VM images are available (used by has_feature API)
1851 sub shared_nodes {
1852     my ($conf, $storecfg) = @_;
1853
1854     my $nodelist = PVE::Cluster::get_nodelist();
1855     my $nodehash = { map { $_ => 1 } @$nodelist };
1856     my $nodename = PVE::INotify::nodename();
1857
1858     foreach_drive($conf, sub {
1859         my ($ds, $drive) = @_;
1860
1861         my $volid = $drive->{file};
1862         return if !$volid;
1863
1864         my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
1865         if ($storeid) {
1866             my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
1867             if ($scfg->{disable}) {
1868                 $nodehash = {};
1869             } elsif (my $avail = $scfg->{nodes}) {
1870                 foreach my $node (keys %$nodehash) {
1871                     delete $nodehash->{$node} if !$avail->{$node};
1872                 }
1873             } elsif (!$scfg->{shared}) {
1874                 foreach my $node (keys %$nodehash) {
1875                     delete $nodehash->{$node} if $node ne $nodename
1876                 }
1877             }
1878         }
1879     });
1880
1881     return $nodehash
1882 }
1883
1884 sub check_lock {
1885     my ($conf) = @_;
1886
1887     die "VM is locked ($conf->{lock})\n" if $conf->{lock};
1888 }
1889
1890 sub check_cmdline {
1891     my ($pidfile, $pid) = @_;
1892
1893     my $fh = IO::File->new("/proc/$pid/cmdline", "r");
1894     if (defined($fh)) {
1895         my $line = <$fh>;
1896         $fh->close;
1897         return undef if !$line;
1898         my @param = split(/\0/, $line);
1899
1900         my $cmd = $param[0];
1901         return if !$cmd || ($cmd !~ m|kvm$| && $cmd !~ m|qemu-system-x86_64$|);
1902
1903         for (my $i = 0; $i < scalar (@param); $i++) {
1904             my $p = $param[$i];
1905             next if !$p;
1906             if (($p eq '-pidfile') || ($p eq '--pidfile')) {
1907                 my $p = $param[$i+1];
1908                 return 1 if $p && ($p eq $pidfile);
1909                 return undef;
1910             }
1911         }
1912     }
1913     return undef;
1914 }
1915
1916 sub check_running {
1917     my ($vmid, $nocheck, $node) = @_;
1918
1919     my $filename = config_file($vmid, $node);
1920
1921     die "unable to find configuration file for VM $vmid - no such machine\n"
1922         if !$nocheck && ! -f $filename;
1923
1924     my $pidfile = pidfile_name($vmid);
1925
1926     if (my $fd = IO::File->new("<$pidfile")) {
1927         my $st = stat($fd);
1928         my $line = <$fd>;
1929         close($fd);
1930
1931         my $mtime = $st->mtime;
1932         if ($mtime > time()) {
1933             warn "file '$filename' modified in future\n";
1934         }
1935
1936         if ($line =~ m/^(\d+)$/) {
1937             my $pid = $1;
1938             if (check_cmdline($pidfile, $pid)) {
1939                 if (my $pinfo = PVE::ProcFSTools::check_process_running($pid)) {
1940                     return $pid;
1941                 }
1942             }
1943         }
1944     }
1945
1946     return undef;
1947 }
1948
1949 sub vzlist {
1950
1951     my $vzlist = config_list();
1952
1953     my $fd = IO::Dir->new($var_run_tmpdir) || return $vzlist;
1954
1955     while (defined(my $de = $fd->read)) {
1956         next if $de !~ m/^(\d+)\.pid$/;
1957         my $vmid = $1;
1958         next if !defined($vzlist->{$vmid});
1959         if (my $pid = check_running($vmid)) {
1960             $vzlist->{$vmid}->{pid} = $pid;
1961         }
1962     }
1963
1964     return $vzlist;
1965 }
1966
1967 sub disksize {
1968     my ($storecfg, $conf) = @_;
1969
1970     my $bootdisk = $conf->{bootdisk};
1971     return undef if !$bootdisk;
1972     return undef if !valid_drivename($bootdisk);
1973
1974     return undef if !$conf->{$bootdisk};
1975
1976     my $drive = parse_drive($bootdisk, $conf->{$bootdisk});
1977     return undef if !defined($drive);
1978
1979     return undef if drive_is_cdrom($drive);
1980
1981     my $volid = $drive->{file};
1982     return undef if !$volid;
1983
1984     return $drive->{size};
1985 }
1986
1987 my $last_proc_pid_stat;
1988
1989 # get VM status information
1990 # This must be fast and should not block ($full == false)
1991 # We only query KVM using QMP if $full == true (this can be slow)
1992 sub vmstatus {
1993     my ($opt_vmid, $full) = @_;
1994
1995     my $res = {};
1996
1997     my $storecfg = PVE::Storage::config();
1998
1999     my $list = vzlist();
2000     my ($uptime) = PVE::ProcFSTools::read_proc_uptime(1);
2001
2002     my $cpucount = $cpuinfo->{cpus} || 1;
2003
2004     foreach my $vmid (keys %$list) {
2005         next if $opt_vmid && ($vmid ne $opt_vmid);
2006
2007         my $cfspath = cfs_config_path($vmid);
2008         my $conf = PVE::Cluster::cfs_read_file($cfspath) || {};
2009
2010         my $d = {};
2011         $d->{pid} = $list->{$vmid}->{pid};
2012
2013         # fixme: better status?
2014         $d->{status} = $list->{$vmid}->{pid} ? 'running' : 'stopped';
2015
2016         my $size = disksize($storecfg, $conf);
2017         if (defined($size)) {
2018             $d->{disk} = 0; # no info available
2019             $d->{maxdisk} = $size;
2020         } else {
2021             $d->{disk} = 0;
2022             $d->{maxdisk} = 0;
2023         }
2024
2025         $d->{cpus} = ($conf->{sockets} || 1) * ($conf->{cores} || 1);
2026         $d->{cpus} = $cpucount if $d->{cpus} > $cpucount;
2027
2028         $d->{name} = $conf->{name} || "VM $vmid";
2029         $d->{maxmem} = $conf->{memory} ? $conf->{memory}*(1024*1024) : 0;
2030
2031         if ($conf->{balloon}) {
2032             $d->{balloon_min} = $conf->{balloon}*(1024*1024);
2033             $d->{shares} = defined($conf->{shares}) ? $conf->{shares} : 1000;
2034         }
2035
2036         $d->{uptime} = 0;
2037         $d->{cpu} = 0;
2038         $d->{mem} = 0;
2039
2040         $d->{netout} = 0;
2041         $d->{netin} = 0;
2042
2043         $d->{diskread} = 0;
2044         $d->{diskwrite} = 0;
2045
2046         $d->{template} = is_template($conf);
2047
2048         $res->{$vmid} = $d;
2049     }
2050
2051     my $netdev = PVE::ProcFSTools::read_proc_net_dev();
2052     foreach my $dev (keys %$netdev) {
2053         next if $dev !~ m/^tap([1-9]\d*)i/;
2054         my $vmid = $1;
2055         my $d = $res->{$vmid};
2056         next if !$d;
2057
2058         $d->{netout} += $netdev->{$dev}->{receive};
2059         $d->{netin} += $netdev->{$dev}->{transmit};
2060     }
2061
2062     my $ctime = gettimeofday;
2063
2064     foreach my $vmid (keys %$list) {
2065
2066         my $d = $res->{$vmid};
2067         my $pid = $d->{pid};
2068         next if !$pid;
2069
2070         my $pstat = PVE::ProcFSTools::read_proc_pid_stat($pid);
2071         next if !$pstat; # not running
2072
2073         my $used = $pstat->{utime} + $pstat->{stime};
2074
2075         $d->{uptime} = int(($uptime - $pstat->{starttime})/$cpuinfo->{user_hz});
2076
2077         if ($pstat->{vsize}) {
2078             $d->{mem} = int(($pstat->{rss}/$pstat->{vsize})*$d->{maxmem});
2079         }
2080
2081         my $old = $last_proc_pid_stat->{$pid};
2082         if (!$old) {
2083             $last_proc_pid_stat->{$pid} = {
2084                 time => $ctime,
2085                 used => $used,
2086                 cpu => 0,
2087             };
2088             next;
2089         }
2090
2091         my $dtime = ($ctime -  $old->{time}) * $cpucount * $cpuinfo->{user_hz};
2092
2093         if ($dtime > 1000) {
2094             my $dutime = $used -  $old->{used};
2095
2096             $d->{cpu} = (($dutime/$dtime)* $cpucount) / $d->{cpus};
2097             $last_proc_pid_stat->{$pid} = {
2098                 time => $ctime,
2099                 used => $used,
2100                 cpu => $d->{cpu},
2101             };
2102         } else {
2103             $d->{cpu} = $old->{cpu};
2104         }
2105     }
2106
2107     return $res if !$full;
2108
2109     my $qmpclient = PVE::QMPClient->new();
2110
2111     my $ballooncb = sub {
2112         my ($vmid, $resp) = @_;
2113
2114         my $info = $resp->{'return'};
2115         return if !$info->{max_mem};
2116
2117         my $d = $res->{$vmid};
2118
2119         # use memory assigned to VM
2120         $d->{maxmem} = $info->{max_mem};
2121         $d->{balloon} = $info->{actual};
2122
2123         if (defined($info->{total_mem}) && defined($info->{free_mem})) {
2124             $d->{mem} = $info->{total_mem} - $info->{free_mem};
2125             $d->{freemem} = $info->{free_mem};
2126         }
2127
2128     };
2129
2130     my $blockstatscb = sub {
2131         my ($vmid, $resp) = @_;
2132         my $data = $resp->{'return'} || [];
2133         my $totalrdbytes = 0;
2134         my $totalwrbytes = 0;
2135         for my $blockstat (@$data) {
2136             $totalrdbytes = $totalrdbytes + $blockstat->{stats}->{rd_bytes};
2137             $totalwrbytes = $totalwrbytes + $blockstat->{stats}->{wr_bytes};
2138         }
2139         $res->{$vmid}->{diskread} = $totalrdbytes;
2140         $res->{$vmid}->{diskwrite} = $totalwrbytes;
2141     };
2142
2143     my $statuscb = sub {
2144         my ($vmid, $resp) = @_;
2145
2146         $qmpclient->queue_cmd($vmid, $blockstatscb, 'query-blockstats');
2147         # this fails if ballon driver is not loaded, so this must be
2148         # the last commnand (following command are aborted if this fails).
2149         $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon');
2150
2151         my $status = 'unknown';
2152         if (!defined($status = $resp->{'return'}->{status})) {
2153             warn "unable to get VM status\n";
2154             return;
2155         }
2156
2157         $res->{$vmid}->{qmpstatus} = $resp->{'return'}->{status};
2158     };
2159
2160     foreach my $vmid (keys %$list) {
2161         next if $opt_vmid && ($vmid ne $opt_vmid);
2162         next if !$res->{$vmid}->{pid}; # not running
2163         $qmpclient->queue_cmd($vmid, $statuscb, 'query-status');
2164     }
2165
2166     $qmpclient->queue_execute();
2167
2168     foreach my $vmid (keys %$list) {
2169         next if $opt_vmid && ($vmid ne $opt_vmid);
2170         $res->{$vmid}->{qmpstatus} = $res->{$vmid}->{status} if !$res->{$vmid}->{qmpstatus};
2171     }
2172
2173     return $res;
2174 }
2175
2176 sub foreach_drive {
2177     my ($conf, $func) = @_;
2178
2179     foreach my $ds (keys %$conf) {
2180         next if !valid_drivename($ds);
2181
2182         my $drive = parse_drive($ds, $conf->{$ds});
2183         next if !$drive;
2184
2185         &$func($ds, $drive);
2186     }
2187 }
2188
2189 sub foreach_volid {
2190     my ($conf, $func) = @_;
2191
2192     my $volhash = {};
2193
2194     my $test_volid = sub {
2195         my ($volid, $is_cdrom) = @_;
2196
2197         return if !$volid;
2198
2199         $volhash->{$volid} = $is_cdrom || 0;
2200     };
2201
2202     foreach_drive($conf, sub {
2203         my ($ds, $drive) = @_;
2204         &$test_volid($drive->{file}, drive_is_cdrom($drive));
2205     });
2206
2207     foreach my $snapname (keys %{$conf->{snapshots}}) {
2208         my $snap = $conf->{snapshots}->{$snapname};
2209         &$test_volid($snap->{vmstate}, 0);
2210         foreach_drive($snap, sub {
2211             my ($ds, $drive) = @_;
2212             &$test_volid($drive->{file}, drive_is_cdrom($drive));
2213         });
2214     }
2215
2216     foreach my $volid (keys %$volhash) {
2217         &$func($volid, $volhash->{$volid});
2218     }
2219 }
2220
2221 sub config_to_command {
2222     my ($storecfg, $vmid, $conf, $defaults, $forcemachine) = @_;
2223
2224     my $cmd = [];
2225     my $globalFlags = [];
2226     my $machineFlags = [];
2227     my $rtcFlags = [];
2228     my $devices = [];
2229     my $pciaddr = '';
2230     my $bridges = {};
2231     my $kvmver = kvm_user_version();
2232     my $vernum = 0; # unknown
2233     if ($kvmver =~ m/^(\d+)\.(\d+)$/) {
2234         $vernum = $1*1000000+$2*1000;
2235     } elsif ($kvmver =~ m/^(\d+)\.(\d+)\.(\d+)$/) {
2236         $vernum = $1*1000000+$2*1000+$3;
2237     }
2238
2239     die "detected old qemu-kvm binary ($kvmver)\n" if $vernum < 15000;
2240
2241     my $have_ovz = -f '/proc/vz/vestat';
2242
2243     push @$cmd, '/usr/bin/kvm';
2244
2245     push @$cmd, '-id', $vmid;
2246
2247     my $use_virtio = 0;
2248
2249     my $qmpsocket = qmp_socket($vmid);
2250     push @$cmd, '-chardev', "socket,id=qmp,path=$qmpsocket,server,nowait";
2251     push @$cmd, '-mon', "chardev=qmp,mode=control";
2252
2253     my $socket = vnc_socket($vmid);
2254     push @$cmd,  '-vnc', "unix:$socket,x509,password";
2255
2256     push @$cmd, '-pidfile' , pidfile_name($vmid);
2257
2258     push @$cmd, '-daemonize';
2259
2260     $pciaddr = print_pci_addr("piix3", $bridges);
2261     push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
2262
2263     my $use_usb2 = 0;
2264     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2265         next if !$conf->{"usb$i"};
2266         $use_usb2 = 1;
2267     }
2268     # include usb device config
2269     push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
2270
2271     # enable absolute mouse coordinates (needed by vnc)
2272     my $tablet = defined($conf->{tablet}) ? $conf->{tablet} : $defaults->{tablet};
2273     push @$devices, '-device', 'usb-tablet,id=tablet,bus=uhci.0,port=1' if $tablet;
2274
2275     # host pci devices
2276     for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
2277           my $d = parse_hostpci($conf->{"hostpci$i"});
2278           next if !$d;
2279           $pciaddr = print_pci_addr("hostpci$i", $bridges);
2280           push @$devices, '-device', "pci-assign,host=$d->{pciid},id=hostpci$i$pciaddr";
2281     }
2282
2283     # usb devices
2284     for (my $i = 0; $i < $MAX_USB_DEVICES; $i++)  {
2285         my $d = parse_usb_device($conf->{"usb$i"});
2286         next if !$d;
2287         if ($d->{vendorid} && $d->{productid}) {
2288             push @$devices, '-device', "usb-host,vendorid=0x$d->{vendorid},productid=0x$d->{productid}";
2289         } elsif (defined($d->{hostbus}) && defined($d->{hostport})) {
2290             push @$devices, '-device', "usb-host,hostbus=$d->{hostbus},hostport=$d->{hostport}";
2291         }
2292     }
2293
2294     # serial devices
2295     for (my $i = 0; $i < $MAX_SERIAL_PORTS; $i++)  {
2296         if (my $path = $conf->{"serial$i"}) {
2297             die "no such serial device\n" if ! -c $path;
2298             push @$devices, '-chardev', "tty,id=serial$i,path=$path";
2299             push @$devices, '-device', "isa-serial,chardev=serial$i";
2300         }
2301     }
2302
2303     # parallel devices
2304     for (my $i = 0; $i < $MAX_PARALLEL_PORTS; $i++)  {
2305         if (my $path = $conf->{"parallel$i"}) {
2306             die "no such parallel device\n" if ! -c $path;
2307             push @$devices, '-chardev', "parport,id=parallel$i,path=$path";
2308             push @$devices, '-device', "isa-parallel,chardev=parallel$i";
2309         }
2310     }
2311
2312     my $vmname = $conf->{name} || "vm$vmid";
2313
2314     push @$cmd, '-name', $vmname;
2315
2316     my $sockets = 1;
2317     $sockets = $conf->{smp} if $conf->{smp}; # old style - no longer iused
2318     $sockets = $conf->{sockets} if  $conf->{sockets};
2319
2320     my $cores = $conf->{cores} || 1;
2321
2322     push @$cmd, '-smp', "sockets=$sockets,cores=$cores";
2323
2324     push @$cmd, '-cpu', $conf->{cpu} if $conf->{cpu};
2325
2326     push @$cmd, '-nodefaults';
2327
2328     my $bootorder = $conf->{boot} || $confdesc->{boot}->{default};
2329
2330     my $bootindex_hash = {};
2331     my $i = 1;
2332     foreach my $o (split(//, $bootorder)) {
2333         $bootindex_hash->{$o} = $i*100;
2334         $i++;
2335     }
2336
2337     push @$cmd, '-boot', "menu=on";
2338
2339     push @$cmd, '-no-acpi' if defined($conf->{acpi}) && $conf->{acpi} == 0;
2340
2341     push @$cmd, '-no-reboot' if  defined($conf->{reboot}) && $conf->{reboot} == 0;
2342
2343     my $vga = $conf->{vga};
2344     if (!$vga) {
2345         if ($conf->{ostype} && ($conf->{ostype} eq 'win8' || $conf->{ostype} eq 'win7' || $conf->{ostype} eq 'w2k8')) {
2346             $vga = 'std';
2347         } else {
2348             $vga = 'cirrus';
2349         }
2350     }
2351
2352     push @$cmd, '-vga', $vga if $vga; # for kvm 77 and later
2353
2354     # time drift fix
2355     my $tdf = defined($conf->{tdf}) ? $conf->{tdf} : $defaults->{tdf};
2356
2357     my $nokvm = defined($conf->{kvm}) && $conf->{kvm} == 0 ? 1 : 0;
2358     my $useLocaltime = $conf->{localtime};
2359
2360     if (my $ost = $conf->{ostype}) {
2361         # other, wxp, w2k, w2k3, w2k8, wvista, win7, win8, l24, l26
2362
2363         if ($ost =~ m/^w/) { # windows
2364             $useLocaltime = 1 if !defined($conf->{localtime});
2365
2366             # use time drift fix when acpi is enabled
2367             if (!(defined($conf->{acpi}) && $conf->{acpi} == 0)) {
2368                 $tdf = 1 if !defined($conf->{tdf});
2369             }
2370         }
2371
2372         if ($ost eq 'win7' || $ost eq 'win8' || $ost eq 'w2k8' ||
2373             $ost eq 'wvista') {
2374             push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
2375             push @$cmd, '-no-hpet';
2376         }
2377     }
2378
2379     push @$rtcFlags, 'driftfix=slew' if $tdf;
2380
2381     if ($nokvm) {
2382         push @$machineFlags, 'accel=tcg';
2383     } else {
2384         die "No accelerator found!\n" if !$cpuinfo->{hvm};
2385     }
2386
2387     my $machine_type = $forcemachine || $conf->{machine};
2388     if ($machine_type) {
2389         push @$machineFlags, "type=${machine_type}";
2390     }
2391
2392     if ($conf->{startdate}) {
2393         push @$rtcFlags, "base=$conf->{startdate}";
2394     } elsif ($useLocaltime) {
2395         push @$rtcFlags, 'base=localtime';
2396     }
2397
2398     push @$cmd, '-S' if $conf->{freeze};
2399
2400     # set keyboard layout
2401     my $kb = $conf->{keyboard} || $defaults->{keyboard};
2402     push @$cmd, '-k', $kb if $kb;
2403
2404     # enable sound
2405     #my $soundhw = $conf->{soundhw} || $defaults->{soundhw};
2406     #push @$cmd, '-soundhw', 'es1370';
2407     #push @$cmd, '-soundhw', $soundhw if $soundhw;
2408
2409     if($conf->{agent}) {
2410         my $qgasocket = qga_socket($vmid);
2411         my $pciaddr = print_pci_addr("qga0", $bridges);
2412         push @$devices, '-chardev', "socket,path=$qgasocket,server,nowait,id=qga0";
2413         push @$devices, '-device', "virtio-serial,id=qga0$pciaddr";
2414         push @$devices, '-device', 'virtserialport,chardev=qga0,name=org.qemu.guest_agent.0';
2415     }
2416
2417     if ($vga eq 'qxl') {
2418         my $pciaddr = print_pci_addr("spice", $bridges);
2419
2420         # todo: enable tls
2421         #my $x509 = "x509-key-file=/etc/pve/local/pve-ssl.key";
2422         #$x509 .= ",x509-cert-file=/etc/pve/local/pve-ssl.pem";
2423         #$x509 .= ",x509-cacert-file=/etc/pve/pve-root-ca.pem";
2424
2425         my $socket = spice_socket($vmid);
2426
2427         push @$cmd, '-spice', "unix=$socket";
2428         push @$cmd, '-device', "virtio-serial,id=spice$pciaddr";
2429         push @$cmd, '-chardev', "spicevmc,id=vdagent,name=vdagent";
2430         push @$cmd, '-device', "virtserialport,chardev=vdagent,name=com.redhat.spice.0";
2431     }
2432
2433     # enable balloon by default, unless explicitly disabled
2434     if (!defined($conf->{balloon}) || $conf->{balloon}) {
2435         $pciaddr = print_pci_addr("balloon0", $bridges);
2436         push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
2437     }
2438
2439     if ($conf->{watchdog}) {
2440         my $wdopts = parse_watchdog($conf->{watchdog});
2441         $pciaddr = print_pci_addr("watchdog", $bridges);
2442         my $watchdog = $wdopts->{model} || 'i6300esb';
2443         push @$devices, '-device', "$watchdog$pciaddr";
2444         push @$devices, '-watchdog-action', $wdopts->{action} if $wdopts->{action};
2445     }
2446
2447     my $vollist = [];
2448     my $scsicontroller = {};
2449     my $ahcicontroller = {};
2450     my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : $defaults->{scsihw};
2451
2452     foreach_drive($conf, sub {
2453         my ($ds, $drive) = @_;
2454
2455         if (PVE::Storage::parse_volume_id($drive->{file}, 1)) {
2456             push @$vollist, $drive->{file};
2457         }
2458
2459         $use_virtio = 1 if $ds =~ m/^virtio/;
2460
2461         if (drive_is_cdrom ($drive)) {
2462             if ($bootindex_hash->{d}) {
2463                 $drive->{bootindex} = $bootindex_hash->{d};
2464                 $bootindex_hash->{d} += 1;
2465             }
2466         } else {
2467             if ($bootindex_hash->{c}) {
2468                 $drive->{bootindex} = $bootindex_hash->{c} if $conf->{bootdisk} && ($conf->{bootdisk} eq $ds);
2469                 $bootindex_hash->{c} += 1;
2470             }
2471         }
2472
2473         if ($drive->{interface} eq 'scsi') {
2474
2475             my $maxdev = ($scsihw ne 'lsi') ? 256 : 7;
2476             my $controller = int($drive->{index} / $maxdev);
2477             $pciaddr = print_pci_addr("scsihw$controller", $bridges);
2478             push @$devices, '-device', "$scsihw,id=scsihw$controller$pciaddr" if !$scsicontroller->{$controller};
2479             $scsicontroller->{$controller}=1;
2480         }
2481
2482         if ($drive->{interface} eq 'sata') {
2483            my $controller = int($drive->{index} / $MAX_SATA_DISKS);
2484            $pciaddr = print_pci_addr("ahci$controller", $bridges);
2485            push @$devices, '-device', "ahci,id=ahci$controller,multifunction=on$pciaddr" if !$ahcicontroller->{$controller};
2486            $ahcicontroller->{$controller}=1;
2487         }
2488
2489         push @$devices, '-drive',print_drive_full($storecfg, $vmid, $drive);
2490         push @$devices, '-device',print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);
2491     });
2492
2493     push @$cmd, '-m', $conf->{memory} || $defaults->{memory};
2494
2495     for (my $i = 0; $i < $MAX_NETS; $i++) {
2496          next if !$conf->{"net$i"};
2497          my $d = parse_net($conf->{"net$i"});
2498          next if !$d;
2499
2500          $use_virtio = 1 if $d->{model} eq 'virtio';
2501
2502          if ($bootindex_hash->{n}) {
2503             $d->{bootindex} = $bootindex_hash->{n};
2504             $bootindex_hash->{n} += 1;
2505          }
2506
2507          my $netdevfull = print_netdev_full($vmid,$conf,$d,"net$i");
2508          push @$devices, '-netdev', $netdevfull;
2509
2510          my $netdevicefull = print_netdevice_full($vmid,$conf,$d,"net$i",$bridges);
2511          push @$devices, '-device', $netdevicefull;
2512     }
2513
2514     #bridges
2515     while (my ($k, $v) = each %$bridges) {
2516         $pciaddr = print_pci_addr("pci.$k");
2517         unshift @$devices, '-device', "pci-bridge,id=pci.$k,chassis_nr=$k$pciaddr" if $k > 0;
2518     }
2519
2520
2521     # hack: virtio with fairsched is unreliable, so we do not use fairsched
2522     # when the VM uses virtio devices.
2523     if (!$use_virtio && $have_ovz) {
2524
2525         my $cpuunits = defined($conf->{cpuunits}) ?
2526             $conf->{cpuunits} : $defaults->{cpuunits};
2527
2528         push @$cmd, '-cpuunits', $cpuunits if $cpuunits;
2529
2530         # fixme: cpulimit is currently ignored
2531         #push @$cmd, '-cpulimit', $conf->{cpulimit} if $conf->{cpulimit};
2532     }
2533
2534     # add custom args
2535     if ($conf->{args}) {
2536         my $aa = PVE::Tools::split_args($conf->{args});
2537         push @$cmd, @$aa;
2538     }
2539
2540     push @$cmd, @$devices;
2541     push @$cmd, '-rtc', join(',', @$rtcFlags)
2542         if scalar(@$rtcFlags);
2543     push @$cmd, '-machine', join(',', @$machineFlags)
2544         if scalar(@$machineFlags);
2545     push @$cmd, '-global', join(',', @$globalFlags)
2546         if scalar(@$globalFlags);
2547
2548     return wantarray ? ($cmd, $vollist) : $cmd;
2549 }
2550
2551 sub vnc_socket {
2552     my ($vmid) = @_;
2553     return "${var_run_tmpdir}/$vmid.vnc";
2554 }
2555
2556 sub spice_socket {
2557     my ($vmid) = @_;
2558     return "${var_run_tmpdir}/$vmid.spice";
2559 }
2560
2561 sub qmp_socket {
2562     my ($vmid) = @_;
2563     return "${var_run_tmpdir}/$vmid.qmp";
2564 }
2565
2566 sub qga_socket {
2567     my ($vmid) = @_;
2568     return "${var_run_tmpdir}/$vmid.qga";
2569 }
2570
2571 sub pidfile_name {
2572     my ($vmid) = @_;
2573     return "${var_run_tmpdir}/$vmid.pid";
2574 }
2575
2576 sub vm_devices_list {
2577     my ($vmid) = @_;
2578
2579     my $res = vm_mon_cmd($vmid, 'query-pci');
2580
2581     my $devices = {};
2582     foreach my $pcibus (@$res) {
2583         foreach my $device (@{$pcibus->{devices}}) {
2584             next if !$device->{'qdev_id'};
2585             $devices->{$device->{'qdev_id'}} = $device;
2586         }
2587     }
2588
2589     return $devices;
2590 }
2591
2592 sub vm_deviceplug {
2593     my ($storecfg, $conf, $vmid, $deviceid, $device) = @_;
2594
2595     return 1 if !check_running($vmid);
2596
2597     if ($deviceid eq 'tablet') {
2598         my $devicefull = "usb-tablet,id=tablet,bus=uhci.0,port=1";
2599         qemu_deviceadd($vmid, $devicefull);
2600         return 1;
2601     }
2602
2603     return 1 if !$conf->{hotplug};
2604
2605     my $devices_list = vm_devices_list($vmid);
2606     return 1 if defined($devices_list->{$deviceid});
2607
2608     qemu_bridgeadd($storecfg, $conf, $vmid, $deviceid); #add bridge if we need it for the device
2609
2610     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2611         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2612         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2613         qemu_deviceadd($vmid, $devicefull);
2614         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2615            qemu_drivedel($vmid, $deviceid);
2616            return undef;
2617         }
2618     }
2619
2620     if ($deviceid =~ m/^(scsihw)(\d+)$/) {
2621         my $scsihw = defined($conf->{scsihw}) ? $conf->{scsihw} : "lsi";
2622         my $pciaddr = print_pci_addr($deviceid);
2623         my $devicefull = "$scsihw,id=$deviceid$pciaddr";
2624         qemu_deviceadd($vmid, $devicefull);
2625         return undef if(!qemu_deviceaddverify($vmid, $deviceid));
2626     }
2627
2628     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2629         return 1 if ($conf->{scsihw} && $conf->{scsihw} ne 'lsi'); #virtio-scsi not yet support hotplug
2630         return undef if !qemu_findorcreatescsihw($storecfg,$conf, $vmid, $device);
2631         return undef if !qemu_driveadd($storecfg, $vmid, $device);
2632         my $devicefull = print_drivedevice_full($storecfg, $conf, $vmid, $device);
2633         if(!qemu_deviceadd($vmid, $devicefull)) {
2634            qemu_drivedel($vmid, $deviceid);
2635            return undef;
2636         }
2637     }
2638
2639     if ($deviceid =~ m/^(net)(\d+)$/) {
2640         return undef if !qemu_netdevadd($vmid, $conf, $device, $deviceid);
2641         my $netdevicefull = print_netdevice_full($vmid, $conf, $device, $deviceid);
2642         qemu_deviceadd($vmid, $netdevicefull);
2643         if(!qemu_deviceaddverify($vmid, $deviceid)) {
2644            qemu_netdevdel($vmid, $deviceid);
2645            return undef;
2646         }
2647     }
2648
2649     if ($deviceid =~ m/^(pci\.)(\d+)$/) {
2650         my $bridgeid = $2;
2651         my $pciaddr = print_pci_addr($deviceid);
2652         my $devicefull = "pci-bridge,id=pci.$bridgeid,chassis_nr=$bridgeid$pciaddr";
2653         qemu_deviceadd($vmid, $devicefull);
2654         return undef if !qemu_deviceaddverify($vmid, $deviceid);
2655     }
2656
2657     return 1;
2658 }
2659
2660 sub vm_deviceunplug {
2661     my ($vmid, $conf, $deviceid) = @_;
2662
2663     return 1 if !check_running ($vmid);
2664
2665     if ($deviceid eq 'tablet') {
2666         qemu_devicedel($vmid, $deviceid);
2667         return 1;
2668     }
2669
2670     return 1 if !$conf->{hotplug};
2671
2672     my $devices_list = vm_devices_list($vmid);
2673     return 1 if !defined($devices_list->{$deviceid});
2674
2675     die "can't unplug bootdisk" if $conf->{bootdisk} && $conf->{bootdisk} eq $deviceid;
2676
2677     if ($deviceid =~ m/^(virtio)(\d+)$/) {
2678         qemu_devicedel($vmid, $deviceid);
2679         return undef if !qemu_devicedelverify($vmid, $deviceid);
2680         return undef if !qemu_drivedel($vmid, $deviceid);
2681     }
2682
2683     if ($deviceid =~ m/^(lsi)(\d+)$/) {
2684         return undef if !qemu_devicedel($vmid, $deviceid);
2685     }
2686
2687     if ($deviceid =~ m/^(scsi)(\d+)$/) {
2688         return undef if !qemu_devicedel($vmid, $deviceid);
2689         return undef if !qemu_drivedel($vmid, $deviceid);
2690     }
2691
2692     if ($deviceid =~ m/^(net)(\d+)$/) {
2693         qemu_devicedel($vmid, $deviceid);
2694         return undef if !qemu_devicedelverify($vmid, $deviceid);
2695         return undef if !qemu_netdevdel($vmid, $deviceid);
2696     }
2697
2698     return 1;
2699 }
2700
2701 sub qemu_deviceadd {
2702     my ($vmid, $devicefull) = @_;
2703
2704     $devicefull = "driver=".$devicefull;
2705     my %options =  split(/[=,]/, $devicefull);
2706
2707     vm_mon_cmd($vmid, "device_add" , %options);
2708     return 1;
2709 }
2710
2711 sub qemu_devicedel {
2712     my($vmid, $deviceid) = @_;
2713     my $ret = vm_mon_cmd($vmid, "device_del", id => $deviceid);
2714     return 1;
2715 }
2716
2717 sub qemu_driveadd {
2718     my($storecfg, $vmid, $device) = @_;
2719
2720     my $drive = print_drive_full($storecfg, $vmid, $device);
2721     my $ret = vm_human_monitor_command($vmid, "drive_add auto $drive");
2722     # If the command succeeds qemu prints: "OK"
2723     if ($ret !~ m/OK/s) {
2724         syslog("err", "adding drive failed: $ret");
2725         return undef;
2726     }
2727     return 1;
2728 }
2729
2730 sub qemu_drivedel {
2731     my($vmid, $deviceid) = @_;
2732
2733     my $ret = vm_human_monitor_command($vmid, "drive_del drive-$deviceid");
2734     $ret =~ s/^\s+//;
2735     if ($ret =~ m/Device \'.*?\' not found/s) {
2736         # NB: device not found errors mean the drive was auto-deleted and we ignore the error
2737     }
2738     elsif ($ret ne "") {
2739       syslog("err", "deleting drive $deviceid failed : $ret");
2740       return undef;
2741     }
2742     return 1;
2743 }
2744
2745 sub qemu_deviceaddverify {
2746     my ($vmid,$deviceid) = @_;
2747
2748     for (my $i = 0; $i <= 5; $i++) {
2749          my $devices_list = vm_devices_list($vmid);
2750          return 1 if defined($devices_list->{$deviceid});
2751          sleep 1;
2752     }
2753     syslog("err", "error on hotplug device $deviceid");
2754     return undef;
2755 }
2756
2757
2758 sub qemu_devicedelverify {
2759     my ($vmid,$deviceid) = @_;
2760
2761     #need to verify the device is correctly remove as device_del is async and empty return is not reliable
2762     for (my $i = 0; $i <= 5; $i++) {
2763          my $devices_list = vm_devices_list($vmid);
2764          return 1 if !defined($devices_list->{$deviceid});
2765          sleep 1;
2766     }
2767     syslog("err", "error on hot-unplugging device $deviceid");
2768     return undef;
2769 }
2770
2771 sub qemu_findorcreatescsihw {
2772     my ($storecfg, $conf, $vmid, $device) = @_;
2773
2774     my $maxdev = ($conf->{scsihw} && $conf->{scsihw} ne 'lsi') ? 256 : 7;
2775     my $controller = int($device->{index} / $maxdev);
2776     my $scsihwid="scsihw$controller";
2777     my $devices_list = vm_devices_list($vmid);
2778
2779     if(!defined($devices_list->{$scsihwid})) {
2780        return undef if !vm_deviceplug($storecfg, $conf, $vmid, $scsihwid);
2781     }
2782     return 1;
2783 }
2784
2785 sub qemu_bridgeadd {
2786     my ($storecfg, $conf, $vmid, $device) = @_;
2787
2788     my $bridges = {};
2789     my $bridgeid = undef;
2790     print_pci_addr($device, $bridges);
2791
2792     while (my ($k, $v) = each %$bridges) {
2793         $bridgeid = $k;
2794     }
2795     return if !$bridgeid || $bridgeid < 1;
2796     my $bridge = "pci.$bridgeid";
2797     my $devices_list = vm_devices_list($vmid);
2798
2799     if(!defined($devices_list->{$bridge})) {
2800         return undef if !vm_deviceplug($storecfg, $conf, $vmid, $bridge);
2801     }
2802     return 1;
2803 }
2804
2805 sub qemu_netdevadd {
2806     my ($vmid, $conf, $device, $deviceid) = @_;
2807
2808     my $netdev = print_netdev_full($vmid, $conf, $device, $deviceid);
2809     my %options =  split(/[=,]/, $netdev);
2810
2811     vm_mon_cmd($vmid, "netdev_add",  %options);
2812     return 1;
2813 }
2814
2815 sub qemu_netdevdel {
2816     my ($vmid, $deviceid) = @_;
2817
2818     vm_mon_cmd($vmid, "netdev_del", id => $deviceid);
2819     return 1;
2820 }
2821
2822 sub qemu_block_set_io_throttle {
2823     my ($vmid, $deviceid, $bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr) = @_;
2824
2825     return if !check_running($vmid) ;
2826
2827     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($iops_wr));
2828
2829 }
2830
2831 # old code, only used to shutdown old VM after update
2832 sub __read_avail {
2833     my ($fh, $timeout) = @_;
2834
2835     my $sel = new IO::Select;
2836     $sel->add($fh);
2837
2838     my $res = '';
2839     my $buf;
2840
2841     my @ready;
2842     while (scalar (@ready = $sel->can_read($timeout))) {
2843         my $count;
2844         if ($count = $fh->sysread($buf, 8192)) {
2845             if ($buf =~ /^(.*)\(qemu\) $/s) {
2846                 $res .= $1;
2847                 last;
2848             } else {
2849                 $res .= $buf;
2850             }
2851         } else {
2852             if (!defined($count)) {
2853                 die "$!\n";
2854             }
2855             last;
2856         }
2857     }
2858
2859     die "monitor read timeout\n" if !scalar(@ready);
2860
2861     return $res;
2862 }
2863
2864 # old code, only used to shutdown old VM after update
2865 sub vm_monitor_command {
2866     my ($vmid, $cmdstr, $nocheck) = @_;
2867
2868     my $res;
2869
2870     eval {
2871         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
2872
2873         my $sname = "${var_run_tmpdir}/$vmid.mon";
2874
2875         my $sock = IO::Socket::UNIX->new( Peer => $sname ) ||
2876             die "unable to connect to VM $vmid socket - $!\n";
2877
2878         my $timeout = 3;
2879
2880         # hack: migrate sometime blocks the monitor (when migrate_downtime
2881         # is set)
2882         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2883             $timeout = 60*60; # 1 hour
2884         }
2885
2886         # read banner;
2887         my $data = __read_avail($sock, $timeout);
2888
2889         if ($data !~ m/^QEMU\s+(\S+)\s+monitor\s/) {
2890             die "got unexpected qemu monitor banner\n";
2891         }
2892
2893         my $sel = new IO::Select;
2894         $sel->add($sock);
2895
2896         if (!scalar(my @ready = $sel->can_write($timeout))) {
2897             die "monitor write error - timeout";
2898         }
2899
2900         my $fullcmd = "$cmdstr\r";
2901
2902         # syslog('info', "VM $vmid monitor command: $cmdstr");
2903
2904         my $b;
2905         if (!($b = $sock->syswrite($fullcmd)) || ($b != length($fullcmd))) {
2906             die "monitor write error - $!";
2907         }
2908
2909         return if ($cmdstr eq 'q') || ($cmdstr eq 'quit');
2910
2911         $timeout = 20;
2912
2913         if ($cmdstr =~ m/^(info\s+migrate|migrate\s)/) {
2914             $timeout = 60*60; # 1 hour
2915         } elsif ($cmdstr =~ m/^(eject|change)/) {
2916             $timeout = 60; # note: cdrom mount command is slow
2917         }
2918         if ($res = __read_avail($sock, $timeout)) {
2919
2920             my @lines = split("\r?\n", $res);
2921
2922             shift @lines if $lines[0] !~ m/^unknown command/; # skip echo
2923
2924             $res = join("\n", @lines);
2925             $res .= "\n";
2926         }
2927     };
2928
2929     my $err = $@;
2930
2931     if ($err) {
2932         syslog("err", "VM $vmid monitor command failed - $err");
2933         die $err;
2934     }
2935
2936     return $res;
2937 }
2938
2939 sub qemu_block_resize {
2940     my ($vmid, $deviceid, $storecfg, $volid, $size) = @_;
2941
2942     my $running = check_running($vmid);
2943
2944     return if !PVE::Storage::volume_resize($storecfg, $volid, $size, $running);
2945
2946     return if !$running;
2947
2948     vm_mon_cmd($vmid, "block_resize", device => $deviceid, size => int($size));
2949
2950 }
2951
2952 sub qemu_volume_snapshot {
2953     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2954
2955     my $running = check_running($vmid);
2956
2957     return if !PVE::Storage::volume_snapshot($storecfg, $volid, $snap, $running);
2958
2959     return if !$running;
2960
2961     vm_mon_cmd($vmid, "snapshot-drive", device => $deviceid, name => $snap);
2962
2963 }
2964
2965 sub qemu_volume_snapshot_delete {
2966     my ($vmid, $deviceid, $storecfg, $volid, $snap) = @_;
2967
2968     my $running = check_running($vmid);
2969
2970     return if !PVE::Storage::volume_snapshot_delete($storecfg, $volid, $snap, $running);
2971
2972     return if !$running;
2973
2974     vm_mon_cmd($vmid, "delete-drive-snapshot", device => $deviceid, name => $snap);
2975 }
2976
2977 sub qga_freezefs {
2978     my ($vmid) = @_;
2979
2980     #need to impplement call to qemu-ga
2981 }
2982
2983 sub qga_unfreezefs {
2984     my ($vmid) = @_;
2985
2986     #need to impplement call to qemu-ga
2987 }
2988
2989 sub vm_start {
2990     my ($storecfg, $vmid, $statefile, $skiplock, $migratedfrom, $paused, $forcemachine) = @_;
2991
2992     lock_config($vmid, sub {
2993         my $conf = load_config($vmid, $migratedfrom);
2994
2995         die "you can't start a vm if it's a template\n" if is_template($conf);
2996
2997         check_lock($conf) if !$skiplock;
2998
2999         die "VM $vmid already running\n" if check_running($vmid, undef, $migratedfrom);
3000
3001         my $defaults = load_defaults();
3002
3003         # set environment variable useful inside network script
3004         $ENV{PVE_MIGRATED_FROM} = $migratedfrom if $migratedfrom;
3005
3006         my ($cmd, $vollist) = config_to_command($storecfg, $vmid, $conf, $defaults, $forcemachine);
3007
3008         my $migrate_port = 0;
3009
3010         if ($statefile) {
3011             if ($statefile eq 'tcp') {
3012                 $migrate_port = PVE::Tools::next_migrate_port();
3013                 my $migrate_uri = "tcp:localhost:${migrate_port}";
3014                 push @$cmd, '-incoming', $migrate_uri;
3015                 push @$cmd, '-S';
3016             } else {
3017                 push @$cmd, '-loadstate', $statefile;
3018             }
3019         } elsif ($paused) {
3020             push @$cmd, '-S';
3021         }
3022
3023         # host pci devices
3024         for (my $i = 0; $i < $MAX_HOSTPCI_DEVICES; $i++)  {
3025           my $d = parse_hostpci($conf->{"hostpci$i"});
3026           next if !$d;
3027           my $info = pci_device_info("0000:$d->{pciid}");
3028           die "IOMMU not present\n" if !check_iommu_support();
3029           die "no pci device info for device '$d->{pciid}'\n" if !$info;
3030           die "can't unbind pci device '$d->{pciid}'\n" if !pci_dev_bind_to_stub($info);
3031           die "can't reset pci device '$d->{pciid}'\n" if !pci_dev_reset($info);
3032         }
3033
3034         PVE::Storage::activate_volumes($storecfg, $vollist);
3035
3036         eval  { run_command($cmd, timeout => $statefile ? undef : 30,
3037                     umask => 0077); };
3038         my $err = $@;
3039         die "start failed: $err" if $err;
3040
3041         print "migration listens on port $migrate_port\n" if $migrate_port;
3042
3043         if ($statefile && $statefile ne 'tcp')  {
3044             eval { vm_mon_cmd_nocheck($vmid, "cont"); };
3045             warn $@ if $@;
3046         }
3047
3048         if($migratedfrom) {
3049             my $capabilities = {};
3050             $capabilities->{capability} =  "xbzrle";
3051             $capabilities->{state} = JSON::true;
3052             eval { vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => [$capabilities]); };
3053         }
3054         else{
3055
3056             if (!$statefile && (!defined($conf->{balloon}) || $conf->{balloon})) {
3057                 vm_mon_cmd_nocheck($vmid, "balloon", value => $conf->{balloon}*1024*1024)
3058                     if $conf->{balloon};
3059                 vm_mon_cmd_nocheck($vmid, 'qom-set',
3060                             path => "machine/peripheral/balloon0",
3061                             property => "guest-stats-polling-interval",
3062                             value => 2);
3063             }
3064         }
3065     });
3066 }
3067
3068 sub vm_mon_cmd {
3069     my ($vmid, $execute, %params) = @_;
3070
3071     my $cmd = { execute => $execute, arguments => \%params };
3072     vm_qmp_command($vmid, $cmd);
3073 }
3074
3075 sub vm_mon_cmd_nocheck {
3076     my ($vmid, $execute, %params) = @_;
3077
3078     my $cmd = { execute => $execute, arguments => \%params };
3079     vm_qmp_command($vmid, $cmd, 1);
3080 }
3081
3082 sub vm_qmp_command {
3083     my ($vmid, $cmd, $nocheck) = @_;
3084
3085     my $res;
3086
3087     my $timeout;
3088     if ($cmd->{arguments} && $cmd->{arguments}->{timeout}) {
3089         $timeout = $cmd->{arguments}->{timeout};
3090         delete $cmd->{arguments}->{timeout};
3091     }
3092
3093     eval {
3094         die "VM $vmid not running\n" if !check_running($vmid, $nocheck);
3095         my $sname = qmp_socket($vmid);
3096         if (-e $sname) {
3097             my $qmpclient = PVE::QMPClient->new();
3098
3099             $res = $qmpclient->cmd($vmid, $cmd, $timeout);
3100         } elsif (-e "${var_run_tmpdir}/$vmid.mon") {
3101             die "can't execute complex command on old monitor - stop/start your vm to fix the problem\n"
3102                 if scalar(%{$cmd->{arguments}});
3103             vm_monitor_command($vmid, $cmd->{execute}, $nocheck);
3104         } else {
3105             die "unable to open monitor socket\n";
3106         }
3107     };
3108     if (my $err = $@) {
3109         syslog("err", "VM $vmid qmp command failed - $err");
3110         die $err;
3111     }
3112
3113     return $res;
3114 }
3115
3116 sub vm_human_monitor_command {
3117     my ($vmid, $cmdline) = @_;
3118
3119     my $res;
3120
3121     my $cmd = {
3122         execute => 'human-monitor-command',
3123         arguments => { 'command-line' => $cmdline},
3124     };
3125
3126     return vm_qmp_command($vmid, $cmd);
3127 }
3128
3129 sub vm_commandline {
3130     my ($storecfg, $vmid) = @_;
3131
3132     my $conf = load_config($vmid);
3133
3134     my $defaults = load_defaults();
3135
3136     my $cmd = config_to_command($storecfg, $vmid, $conf, $defaults);
3137
3138     return join(' ', @$cmd);
3139 }
3140
3141 sub vm_reset {
3142     my ($vmid, $skiplock) = @_;
3143
3144     lock_config($vmid, sub {
3145
3146         my $conf = load_config($vmid);
3147
3148         check_lock($conf) if !$skiplock;
3149
3150         vm_mon_cmd($vmid, "system_reset");
3151     });
3152 }
3153
3154 sub get_vm_volumes {
3155     my ($conf) = @_;
3156
3157     my $vollist = [];
3158     foreach_volid($conf, sub {
3159         my ($volid, $is_cdrom) = @_;
3160
3161         return if $volid =~ m|^/|;
3162
3163         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
3164         return if !$sid;
3165
3166         push @$vollist, $volid;
3167     });
3168
3169     return $vollist;
3170 }
3171
3172 sub vm_stop_cleanup {
3173     my ($storecfg, $vmid, $conf, $keepActive) = @_;
3174
3175     eval {
3176         fairsched_rmnod($vmid); # try to destroy group
3177
3178         if (!$keepActive) {
3179             my $vollist = get_vm_volumes($conf);
3180             PVE::Storage::deactivate_volumes($storecfg, $vollist);
3181         }
3182
3183         foreach my $ext (qw(mon qmp pid vnc qga)) {
3184             unlink "/var/run/qemu-server/${vmid}.$ext";
3185         }
3186     };
3187     warn $@ if $@; # avoid errors - just warn
3188 }
3189
3190 # Note: use $nockeck to skip tests if VM configuration file exists.
3191 # We need that when migration VMs to other nodes (files already moved)
3192 # Note: we set $keepActive in vzdump stop mode - volumes need to stay active
3193 sub vm_stop {
3194     my ($storecfg, $vmid, $skiplock, $nocheck, $timeout, $shutdown, $force, $keepActive, $migratedfrom) = @_;
3195
3196     $force = 1 if !defined($force) && !$shutdown;
3197
3198     if ($migratedfrom){
3199         my $pid = check_running($vmid, $nocheck, $migratedfrom);
3200         kill 15, $pid if $pid;
3201         my $conf = load_config($vmid, $migratedfrom);
3202         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive);
3203         return;
3204     }
3205
3206     lock_config($vmid, sub {
3207
3208         my $pid = check_running($vmid, $nocheck);
3209         return if !$pid;
3210
3211         my $conf;
3212         if (!$nocheck) {
3213             $conf = load_config($vmid);
3214             check_lock($conf) if !$skiplock;
3215             if (!defined($timeout) && $shutdown && $conf->{startup}) {
3216                 my $opts = parse_startup($conf->{startup});
3217                 $timeout = $opts->{down} if $opts->{down};
3218             }
3219         }
3220
3221         $timeout = 60 if !defined($timeout);
3222
3223         eval {
3224             if ($shutdown) {
3225                 $nocheck ? vm_mon_cmd_nocheck($vmid, "system_powerdown") : vm_mon_cmd($vmid, "system_powerdown");
3226
3227             } else {
3228                 $nocheck ? vm_mon_cmd_nocheck($vmid, "quit") : vm_mon_cmd($vmid, "quit");
3229             }
3230         };
3231         my $err = $@;
3232
3233         if (!$err) {
3234             my $count = 0;
3235             while (($count < $timeout) && check_running($vmid, $nocheck)) {
3236                 $count++;
3237                 sleep 1;
3238             }
3239
3240             if ($count >= $timeout) {
3241                 if ($force) {
3242                     warn "VM still running - terminating now with SIGTERM\n";
3243                     kill 15, $pid;
3244                 } else {
3245                     die "VM quit/powerdown failed - got timeout\n";
3246                 }
3247             } else {
3248                 vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3249                 return;
3250             }
3251         } else {
3252             if ($force) {
3253                 warn "VM quit/powerdown failed - terminating now with SIGTERM\n";
3254                 kill 15, $pid;
3255             } else {
3256                 die "VM quit/powerdown failed\n";
3257             }
3258         }
3259
3260         # wait again
3261         $timeout = 10;
3262
3263         my $count = 0;
3264         while (($count < $timeout) && check_running($vmid, $nocheck)) {
3265             $count++;
3266             sleep 1;
3267         }
3268
3269         if ($count >= $timeout) {
3270             warn "VM still running - terminating now with SIGKILL\n";
3271             kill 9, $pid;
3272             sleep 1;
3273         }
3274
3275         vm_stop_cleanup($storecfg, $vmid, $conf, $keepActive) if $conf;
3276    });
3277 }
3278
3279 sub vm_suspend {
3280     my ($vmid, $skiplock) = @_;
3281
3282     lock_config($vmid, sub {
3283
3284         my $conf = load_config($vmid);
3285
3286         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3287
3288         vm_mon_cmd($vmid, "stop");
3289     });
3290 }
3291
3292 sub vm_resume {
3293     my ($vmid, $skiplock) = @_;
3294
3295     lock_config($vmid, sub {
3296
3297         my $conf = load_config($vmid);
3298
3299         check_lock($conf) if !($skiplock || ($conf->{lock} && $conf->{lock} eq 'backup'));
3300
3301         vm_mon_cmd($vmid, "cont");
3302     });
3303 }
3304
3305 sub vm_sendkey {
3306     my ($vmid, $skiplock, $key) = @_;
3307
3308     lock_config($vmid, sub {
3309
3310         my $conf = load_config($vmid);
3311
3312         # there is no qmp command, so we use the human monitor command
3313         vm_human_monitor_command($vmid, "sendkey $key");
3314     });
3315 }
3316
3317 sub vm_destroy {
3318     my ($storecfg, $vmid, $skiplock) = @_;
3319
3320     lock_config($vmid, sub {
3321
3322         my $conf = load_config($vmid);
3323
3324         check_lock($conf) if !$skiplock;
3325
3326         if (!check_running($vmid)) {
3327             fairsched_rmnod($vmid); # try to destroy group
3328             destroy_vm($storecfg, $vmid);
3329         } else {
3330             die "VM $vmid is running - destroy failed\n";
3331         }
3332     });
3333 }
3334
3335 # pci helpers
3336
3337 sub file_write {
3338     my ($filename, $buf) = @_;
3339
3340     my $fh = IO::File->new($filename, "w");
3341     return undef if !$fh;
3342
3343     my $res = print $fh $buf;
3344
3345     $fh->close();
3346
3347     return $res;
3348 }
3349
3350 sub pci_device_info {
3351     my ($name) = @_;
3352
3353     my $res;
3354
3355     return undef if $name !~ m/^([a-f0-9]{4}):([a-f0-9]{2}):([a-f0-9]{2})\.([a-f0-9])$/;
3356     my ($domain, $bus, $slot, $func) = ($1, $2, $3, $4);
3357
3358     my $irq = file_read_firstline("$pcisysfs/devices/$name/irq");
3359     return undef if !defined($irq) || $irq !~ m/^\d+$/;
3360
3361     my $vendor = file_read_firstline("$pcisysfs/devices/$name/vendor");
3362     return undef if !defined($vendor) || $vendor !~ s/^0x//;
3363
3364     my $product = file_read_firstline("$pcisysfs/devices/$name/device");
3365     return undef if !defined($product) || $product !~ s/^0x//;
3366
3367     $res = {
3368         name => $name,
3369         vendor => $vendor,
3370         product => $product,
3371         domain => $domain,
3372         bus => $bus,
3373         slot => $slot,
3374         func => $func,
3375         irq => $irq,
3376         has_fl_reset => -f "$pcisysfs/devices/$name/reset" || 0,
3377     };
3378
3379     return $res;
3380 }
3381
3382 sub pci_dev_reset {
3383     my ($dev) = @_;
3384
3385     my $name = $dev->{name};
3386
3387     my $fn = "$pcisysfs/devices/$name/reset";
3388
3389     return file_write($fn, "1");
3390 }
3391
3392 sub pci_dev_bind_to_stub {
3393     my ($dev) = @_;
3394
3395     my $name = $dev->{name};
3396
3397     my $testdir = "$pcisysfs/drivers/pci-stub/$name";
3398     return 1 if -d $testdir;
3399
3400     my $data = "$dev->{vendor} $dev->{product}";
3401     return undef if !file_write("$pcisysfs/drivers/pci-stub/new_id", $data);
3402
3403     my $fn = "$pcisysfs/devices/$name/driver/unbind";
3404     if (!file_write($fn, $name)) {
3405         return undef if -f $fn;
3406     }
3407
3408     $fn = "$pcisysfs/drivers/pci-stub/bind";
3409     if (! -d $testdir) {
3410         return undef if !file_write($fn, $name);
3411     }
3412
3413     return -d $testdir;
3414 }
3415
3416 sub print_pci_addr {
3417     my ($id, $bridges) = @_;
3418
3419     my $res = '';
3420     my $devices = {
3421         piix3 => { bus => 0, addr => 1 },
3422         #addr2 : first videocard
3423         balloon0 => { bus => 0, addr => 3 },
3424         watchdog => { bus => 0, addr => 4 },
3425         scsihw0 => { bus => 0, addr => 5 },
3426         scsihw1 => { bus => 0, addr => 6 },
3427         ahci0 => { bus => 0, addr => 7 },
3428         qga0 => { bus => 0, addr => 8 },
3429         spice => { bus => 0, addr => 9 },
3430         virtio0 => { bus => 0, addr => 10 },
3431         virtio1 => { bus => 0, addr => 11 },
3432         virtio2 => { bus => 0, addr => 12 },
3433         virtio3 => { bus => 0, addr => 13 },
3434         virtio4 => { bus => 0, addr => 14 },
3435         virtio5 => { bus => 0, addr => 15 },
3436         hostpci0 => { bus => 0, addr => 16 },
3437         hostpci1 => { bus => 0, addr => 17 },
3438         net0 => { bus => 0, addr => 18 },
3439         net1 => { bus => 0, addr => 19 },
3440         net2 => { bus => 0, addr => 20 },
3441         net3 => { bus => 0, addr => 21 },
3442         net4 => { bus => 0, addr => 22 },
3443         net5 => { bus => 0, addr => 23 },
3444         #addr29 : usb-host (pve-usb.cfg)
3445         'pci.1' => { bus => 0, addr => 30 },
3446         'pci.2' => { bus => 0, addr => 31 },
3447         'net6' => { bus => 1, addr => 1 },
3448         'net7' => { bus => 1, addr => 2 },
3449         'net8' => { bus => 1, addr => 3 },
3450         'net9' => { bus => 1, addr => 4 },
3451         'net10' => { bus => 1, addr => 5 },
3452         'net11' => { bus => 1, addr => 6 },
3453         'net12' => { bus => 1, addr => 7 },
3454         'net13' => { bus => 1, addr => 8 },
3455         'net14' => { bus => 1, addr => 9 },
3456         'net15' => { bus => 1, addr => 10 },
3457         'net16' => { bus => 1, addr => 11 },
3458         'net17' => { bus => 1, addr => 12 },
3459         'net18' => { bus => 1, addr => 13 },
3460         'net19' => { bus => 1, addr => 14 },
3461         'net20' => { bus => 1, addr => 15 },
3462         'net21' => { bus => 1, addr => 16 },
3463         'net22' => { bus => 1, addr => 17 },
3464         'net23' => { bus => 1, addr => 18 },
3465         'net24' => { bus => 1, addr => 19 },
3466         'net25' => { bus => 1, addr => 20 },
3467         'net26' => { bus => 1, addr => 21 },
3468         'net27' => { bus => 1, addr => 22 },
3469         'net28' => { bus => 1, addr => 23 },
3470         'net29' => { bus => 1, addr => 24 },
3471         'net30' => { bus => 1, addr => 25 },
3472         'net31' => { bus => 1, addr => 26 },
3473         'virtio6' => { bus => 2, addr => 1 },
3474         'virtio7' => { bus => 2, addr => 2 },
3475         'virtio8' => { bus => 2, addr => 3 },
3476         'virtio9' => { bus => 2, addr => 4 },
3477         'virtio10' => { bus => 2, addr => 5 },
3478         'virtio11' => { bus => 2, addr => 6 },
3479         'virtio12' => { bus => 2, addr => 7 },
3480         'virtio13' => { bus => 2, addr => 8 },
3481         'virtio14' => { bus => 2, addr => 9 },
3482         'virtio15' => { bus => 2, addr => 10 },
3483     };
3484
3485     if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {
3486            my $addr = sprintf("0x%x", $devices->{$id}->{addr});
3487            my $bus = $devices->{$id}->{bus};
3488            $res = ",bus=pci.$bus,addr=$addr";
3489            $bridges->{$bus} = 1 if $bridges;
3490     }
3491     return $res;
3492
3493 }
3494
3495 # vzdump restore implementaion
3496
3497 sub tar_archive_read_firstfile {
3498     my $archive = shift;
3499
3500     die "ERROR: file '$archive' does not exist\n" if ! -f $archive;
3501
3502     # try to detect archive type first
3503     my $pid = open (TMP, "tar tf '$archive'|") ||
3504         die "unable to open file '$archive'\n";
3505     my $firstfile = <TMP>;
3506     kill 15, $pid;
3507     close TMP;
3508
3509     die "ERROR: archive contaions no data\n" if !$firstfile;
3510     chomp $firstfile;
3511
3512     return $firstfile;
3513 }
3514
3515 sub tar_restore_cleanup {
3516     my ($storecfg, $statfile) = @_;
3517
3518     print STDERR "starting cleanup\n";
3519
3520     if (my $fd = IO::File->new($statfile, "r")) {
3521         while (defined(my $line = <$fd>)) {
3522             if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
3523                 my $volid = $2;
3524                 eval {
3525                     if ($volid =~ m|^/|) {
3526                         unlink $volid || die 'unlink failed\n';
3527                     } else {
3528                         PVE::Storage::vdisk_free($storecfg, $volid);
3529                     }
3530                     print STDERR "temporary volume '$volid' sucessfuly removed\n";
3531                 };
3532                 print STDERR "unable to cleanup '$volid' - $@" if $@;
3533             } else {
3534                 print STDERR "unable to parse line in statfile - $line";
3535             }
3536         }
3537         $fd->close();
3538     }
3539 }
3540
3541 sub restore_archive {
3542     my ($archive, $vmid, $user, $opts) = @_;
3543
3544     my $format = $opts->{format};
3545     my $comp;
3546
3547     if ($archive =~ m/\.tgz$/ || $archive =~ m/\.tar\.gz$/) {
3548         $format = 'tar' if !$format;
3549         $comp = 'gzip';
3550     } elsif ($archive =~ m/\.tar$/) {
3551         $format = 'tar' if !$format;
3552     } elsif ($archive =~ m/.tar.lzo$/) {
3553         $format = 'tar' if !$format;
3554         $comp = 'lzop';
3555     } elsif ($archive =~ m/\.vma$/) {
3556         $format = 'vma' if !$format;
3557     } elsif ($archive =~ m/\.vma\.gz$/) {
3558         $format = 'vma' if !$format;
3559         $comp = 'gzip';
3560     } elsif ($archive =~ m/\.vma\.lzo$/) {
3561         $format = 'vma' if !$format;
3562         $comp = 'lzop';
3563     } else {
3564         $format = 'vma' if !$format; # default
3565     }
3566
3567     # try to detect archive format
3568     if ($format eq 'tar') {
3569         return restore_tar_archive($archive, $vmid, $user, $opts);
3570     } else {
3571         return restore_vma_archive($archive, $vmid, $user, $opts, $comp);
3572     }
3573 }
3574
3575 sub restore_update_config_line {
3576     my ($outfd, $cookie, $vmid, $map, $line, $unique) = @_;
3577
3578     return if $line =~ m/^\#qmdump\#/;
3579     return if $line =~ m/^\#vzdump\#/;
3580     return if $line =~ m/^lock:/;
3581     return if $line =~ m/^unused\d+:/;
3582     return if $line =~ m/^parent:/;
3583     return if $line =~ m/^template:/; # restored VM is never a template
3584
3585     if (($line =~ m/^(vlan(\d+)):\s*(\S+)\s*$/)) {
3586         # try to convert old 1.X settings
3587         my ($id, $ind, $ethcfg) = ($1, $2, $3);
3588         foreach my $devconfig (PVE::Tools::split_list($ethcfg)) {
3589             my ($model, $macaddr) = split(/\=/, $devconfig);
3590             $macaddr = PVE::Tools::random_ether_addr() if !$macaddr || $unique;
3591             my $net = {
3592                 model => $model,
3593                 bridge => "vmbr$ind",
3594                 macaddr => $macaddr,
3595             };
3596             my $netstr = print_net($net);
3597
3598             print $outfd "net$cookie->{netcount}: $netstr\n";
3599             $cookie->{netcount}++;
3600         }
3601     } elsif (($line =~ m/^(net\d+):\s*(\S+)\s*$/) && $unique) {
3602         my ($id, $netstr) = ($1, $2);
3603         my $net = parse_net($netstr);
3604         $net->{macaddr} = PVE::Tools::random_ether_addr() if $net->{macaddr};
3605         $netstr = print_net($net);
3606         print $outfd "$id: $netstr\n";
3607     } elsif ($line =~ m/^((ide|scsi|virtio|sata)\d+):\s*(\S+)\s*$/) {
3608         my $virtdev = $1;
3609         my $value = $3;
3610         if ($line =~ m/backup=no/) {
3611             print $outfd "#$line";
3612         } elsif ($virtdev && $map->{$virtdev}) {
3613             my $di = parse_drive($virtdev, $value);
3614             delete $di->{format}; # format can change on restore
3615             $di->{file} = $map->{$virtdev};
3616             $value = print_drive($vmid, $di);
3617             print $outfd "$virtdev: $value\n";
3618         } else {
3619             print $outfd $line;
3620         }
3621     } else {
3622         print $outfd $line;
3623     }
3624 }
3625
3626 sub scan_volids {
3627     my ($cfg, $vmid) = @_;
3628
3629     my $info = PVE::Storage::vdisk_list($cfg, undef, $vmid);
3630
3631     my $volid_hash = {};
3632     foreach my $storeid (keys %$info) {
3633         foreach my $item (@{$info->{$storeid}}) {
3634             next if !($item->{volid} && $item->{size});
3635             $item->{path} = PVE::Storage::path($cfg, $item->{volid});
3636             $volid_hash->{$item->{volid}} = $item;
3637         }
3638     }
3639
3640     return $volid_hash;
3641 }
3642
3643 sub get_used_paths {
3644     my ($vmid, $storecfg, $conf, $scan_snapshots, $skip_drive) = @_;
3645
3646     my $used_path = {};
3647
3648     my $scan_config = sub {
3649         my ($cref, $snapname) = @_;
3650
3651         foreach my $key (keys %$cref) {
3652             my $value = $cref->{$key};
3653             if (valid_drivename($key)) {
3654                 next if $skip_drive && $key eq $skip_drive;
3655                 my $drive = parse_drive($key, $value);
3656                 next if !$drive || !$drive->{file} || drive_is_cdrom($drive);
3657                 if ($drive->{file} =~ m!^/!) {
3658                     $used_path->{$drive->{file}}++; # = 1;
3659                 } else {
3660                     my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
3661                     next if !$storeid;
3662                     my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1);
3663                     next if !$scfg;
3664                     my $path = PVE::Storage::path($storecfg, $drive->{file}, $snapname);
3665                     $used_path->{$path}++; # = 1;
3666                 }
3667             }
3668         }
3669     };
3670
3671     &$scan_config($conf);
3672
3673     undef $skip_drive;
3674
3675     if ($scan_snapshots) {
3676         foreach my $snapname (keys %{$conf->{snapshots}}) {
3677             &$scan_config($conf->{snapshots}->{$snapname}, $snapname);
3678         }
3679     }
3680
3681     return $used_path;
3682 }
3683
3684 sub update_disksize {
3685     my ($vmid, $conf, $volid_hash) = @_;
3686
3687     my $changes;
3688
3689     my $used = {};
3690
3691     # Note: it is allowed to define multiple storages with same path (alias), so
3692     # we need to check both 'volid' and real 'path' (two different volid can point
3693     # to the same path).
3694
3695     my $usedpath = {};
3696
3697     # update size info
3698     foreach my $opt (keys %$conf) {
3699         if (valid_drivename($opt)) {
3700             my $drive = parse_drive($opt, $conf->{$opt});
3701             my $volid = $drive->{file};
3702             next if !$volid;
3703
3704             $used->{$volid} = 1;
3705             if ($volid_hash->{$volid} &&
3706                 (my $path = $volid_hash->{$volid}->{path})) {
3707                 $usedpath->{$path} = 1;
3708             }
3709
3710             next if drive_is_cdrom($drive);
3711             next if !$volid_hash->{$volid};
3712
3713             $drive->{size} = $volid_hash->{$volid}->{size};
3714             my $new = print_drive($vmid, $drive);
3715             if ($new ne $conf->{$opt}) {
3716                 $changes = 1;
3717                 $conf->{$opt} = $new;
3718             }
3719         }
3720     }
3721
3722     # remove 'unusedX' entry if volume is used
3723     foreach my $opt (keys %$conf) {
3724         next if $opt !~ m/^unused\d+$/;
3725         my $volid = $conf->{$opt};
3726         my $path = $volid_hash->{$volid}->{path} if $volid_hash->{$volid};
3727         if ($used->{$volid} || ($path && $usedpath->{$path})) {
3728             $changes = 1;
3729             delete $conf->{$opt};
3730         }
3731     }
3732
3733     foreach my $volid (sort keys %$volid_hash) {
3734         next if $volid =~ m/vm-$vmid-state-/;
3735         next if $used->{$volid};
3736         my $path = $volid_hash->{$volid}->{path};
3737         next if !$path; # just to be sure
3738         next if $usedpath->{$path};
3739         $changes = 1;
3740         add_unused_volume($conf, $volid);
3741         $usedpath->{$path} = 1; # avoid to add more than once (aliases)
3742     }
3743
3744     return $changes;
3745 }
3746
3747 sub rescan {
3748     my ($vmid, $nolock) = @_;
3749
3750     my $cfg = PVE::Cluster::cfs_read_file("storage.cfg");
3751
3752     my $volid_hash = scan_volids($cfg, $vmid);
3753
3754     my $updatefn =  sub {
3755         my ($vmid) = @_;
3756
3757         my $conf = load_config($vmid);
3758
3759         check_lock($conf);
3760
3761         my $vm_volids = {};
3762         foreach my $volid (keys %$volid_hash) {
3763             my $info = $volid_hash->{$volid};
3764             $vm_volids->{$volid} = $info if $info->{vmid} && $info->{vmid} == $vmid;
3765         }
3766
3767         my $changes = update_disksize($vmid, $conf, $vm_volids);
3768
3769         update_config_nolock($vmid, $conf, 1) if $changes;
3770     };
3771
3772     if (defined($vmid)) {
3773         if ($nolock) {
3774             &$updatefn($vmid);
3775         } else {
3776             lock_config($vmid, $updatefn, $vmid);
3777         }
3778     } else {
3779         my $vmlist = config_list();
3780         foreach my $vmid (keys %$vmlist) {
3781             if ($nolock) {
3782                 &$updatefn($vmid);
3783             } else {
3784                 lock_config($vmid, $updatefn, $vmid);
3785             }
3786         }
3787     }
3788 }
3789
3790 sub restore_vma_archive {
3791     my ($archive, $vmid, $user, $opts, $comp) = @_;
3792
3793     my $input = $archive eq '-' ? "<&STDIN" : undef;
3794     my $readfrom = $archive;
3795
3796     my $uncomp = '';
3797     if ($comp) {
3798         $readfrom = '-';
3799         my $qarchive = PVE::Tools::shellquote($archive);
3800         if ($comp eq 'gzip') {
3801             $uncomp = "zcat $qarchive|";
3802         } elsif ($comp eq 'lzop') {
3803             $uncomp = "lzop -d -c $qarchive|";
3804         } else {
3805             die "unknown compression method '$comp'\n";
3806         }
3807
3808     }
3809
3810     my $tmpdir = "/var/tmp/vzdumptmp$$";
3811     rmtree $tmpdir;
3812
3813     # disable interrupts (always do cleanups)
3814     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
3815         warn "got interrupt - ignored\n";
3816     };
3817
3818     my $mapfifo = "/var/tmp/vzdumptmp$$.fifo";
3819     POSIX::mkfifo($mapfifo, 0600);
3820     my $fifofh;
3821
3822     my $openfifo = sub {
3823         open($fifofh, '>', $mapfifo) || die $!;
3824     };
3825
3826     my $cmd = "${uncomp}vma extract -v -r $mapfifo $readfrom $tmpdir";
3827
3828     my $oldtimeout;
3829     my $timeout = 5;
3830
3831     my $devinfo = {};
3832
3833     my $rpcenv = PVE::RPCEnvironment::get();
3834
3835     my $conffile = config_file($vmid);
3836     my $tmpfn = "$conffile.$$.tmp";
3837
3838     # Note: $oldconf is undef if VM does not exists
3839     my $oldconf = PVE::Cluster::cfs_read_file(cfs_config_path($vmid));
3840
3841     my $print_devmap = sub {
3842         my $virtdev_hash = {};
3843
3844         my $cfgfn = "$tmpdir/qemu-server.conf";
3845
3846         # we can read the config - that is already extracted
3847         my $fh = IO::File->new($cfgfn, "r") ||
3848             "unable to read qemu-server.conf - $!\n";
3849
3850         while (defined(my $line = <$fh>)) {
3851             if ($line =~ m/^\#qmdump\#map:(\S+):(\S+):(\S*):(\S*):$/) {
3852                 my ($virtdev, $devname, $storeid, $format) = ($1, $2, $3, $4);
3853                 die "archive does not contain data for drive '$virtdev'\n"
3854                     if !$devinfo->{$devname};
3855                 if (defined($opts->{storage})) {
3856                     $storeid = $opts->{storage} || 'local';
3857                 } elsif (!$storeid) {
3858                     $storeid = 'local';
3859                 }
3860                 $format = 'raw' if !$format;
3861                 $devinfo->{$devname}->{devname} = $devname;
3862                 $devinfo->{$devname}->{virtdev} = $virtdev;
3863                 $devinfo->{$devname}->{format} = $format;
3864                 $devinfo->{$devname}->{storeid} = $storeid;
3865
3866                 # check permission on storage
3867                 my $pool = $opts->{pool}; # todo: do we need that?
3868                 if ($user ne 'root@pam') {
3869                     $rpcenv->check($user, "/storage/$storeid", ['Datastore.AllocateSpace']);
3870                 }
3871
3872                 $virtdev_hash->{$virtdev} = $devinfo->{$devname};
3873             }
3874         }
3875
3876         foreach my $devname (keys %$devinfo) {
3877             die "found no device mapping information for device '$devname'\n"
3878                 if !$devinfo->{$devname}->{virtdev};
3879         }
3880
3881         my $cfg = cfs_read_file('storage.cfg');
3882
3883         # create empty/temp config
3884         if ($oldconf) {
3885             PVE::Tools::file_set_contents($conffile, "memory: 128\n");
3886             foreach_drive($oldconf, sub {
3887                 my ($ds, $drive) = @_;
3888
3889                 return if drive_is_cdrom($drive);
3890
3891                 my $volid = $drive->{file};
3892
3893                 return if !$volid || $volid =~ m|^/|;
3894
3895                 my ($path, $owner) = PVE::Storage::path($cfg, $volid);
3896                 return if !$path || !$owner || ($owner != $vmid);
3897
3898                 # Note: only delete disk we want to restore
3899                 # other volumes will become unused
3900                 if ($virtdev_hash->{$ds}) {
3901                     PVE::Storage::vdisk_free($cfg, $volid);
3902                 }
3903             });
3904         }
3905
3906         my $map = {};
3907         foreach my $virtdev (sort keys %$virtdev_hash) {
3908             my $d = $virtdev_hash->{$virtdev};
3909             my $alloc_size = int(($d->{size} + 1024 - 1)/1024);
3910             my $scfg = PVE::Storage::storage_config($cfg, $d->{storeid});
3911
3912             # test if requested format is supported
3913             my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($cfg, $d->{storeid});
3914             my $supported = grep { $_ eq $d->{format} } @$validFormats;
3915             $d->{format} = $defFormat if !$supported;
3916
3917             my $volid = PVE::Storage::vdisk_alloc($cfg, $d->{storeid}, $vmid,
3918                                                   $d->{format}, undef, $alloc_size);
3919             print STDERR "new volume ID is '$volid'\n";
3920             $d->{volid} = $volid;
3921             my $path = PVE::Storage::path($cfg, $volid);
3922
3923             my $write_zeros = 1;
3924             # fixme: what other storages types initialize volumes with zero?
3925             if ($scfg->{type} eq 'dir' || $scfg->{type} eq 'nfs' ||
3926                 $scfg->{type} eq 'sheepdog' || $scfg->{type} eq 'rbd') {
3927                 $write_zeros = 0;
3928             }
3929
3930             print $fifofh "${write_zeros}:$d->{devname}=$path\n";
3931
3932             print "map '$d->{devname}' to '$path' (write zeros = ${write_zeros})\n";
3933             $map->{$virtdev} = $volid;
3934         }
3935
3936         $fh->seek(0, 0) || die "seek failed - $!\n";
3937
3938         my $outfd = new IO::File ($tmpfn, "w") ||
3939             die "unable to write config for VM $vmid\n";
3940
3941         my $cookie = { netcount => 0 };
3942         while (defined(my $line = <$fh>)) {
3943             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
3944         }
3945
3946         $fh->close();
3947         $outfd->close();
3948     };
3949
3950     eval {
3951         # enable interrupts
3952         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
3953             die "interrupted by signal\n";
3954         };
3955         local $SIG{ALRM} = sub { die "got timeout\n"; };
3956
3957         $oldtimeout = alarm($timeout);
3958
3959         my $parser = sub {
3960             my $line = shift;
3961
3962             print "$line\n";
3963
3964             if ($line =~ m/^DEV:\sdev_id=(\d+)\ssize:\s(\d+)\sdevname:\s(\S+)$/) {
3965                 my ($dev_id, $size, $devname) = ($1, $2, $3);
3966                 $devinfo->{$devname} = { size => $size, dev_id => $dev_id };
3967             } elsif ($line =~ m/^CTIME: /) {
3968                 &$print_devmap();
3969                 print $fifofh "done\n";
3970                 my $tmp = $oldtimeout || 0;
3971                 $oldtimeout = undef;
3972                 alarm($tmp);
3973                 close($fifofh);
3974             }
3975         };
3976
3977         print "restore vma archive: $cmd\n";
3978         run_command($cmd, input => $input, outfunc => $parser, afterfork => $openfifo);
3979     };
3980     my $err = $@;
3981
3982     alarm($oldtimeout) if $oldtimeout;
3983
3984     unlink $mapfifo;
3985
3986     if ($err) {
3987         rmtree $tmpdir;
3988         unlink $tmpfn;
3989
3990         my $cfg = cfs_read_file('storage.cfg');
3991         foreach my $devname (keys %$devinfo) {
3992             my $volid = $devinfo->{$devname}->{volid};
3993             next if !$volid;
3994             eval {
3995                 if ($volid =~ m|^/|) {
3996                     unlink $volid || die 'unlink failed\n';
3997                 } else {
3998                     PVE::Storage::vdisk_free($cfg, $volid);
3999                 }
4000                 print STDERR "temporary volume '$volid' sucessfuly removed\n";
4001             };
4002             print STDERR "unable to cleanup '$volid' - $@" if $@;
4003         }
4004         die $err;
4005     }
4006
4007     rmtree $tmpdir;
4008
4009     rename($tmpfn, $conffile) ||
4010         die "unable to commit configuration file '$conffile'\n";
4011
4012     PVE::Cluster::cfs_update(); # make sure we read new file
4013
4014     eval { rescan($vmid, 1); };
4015     warn $@ if $@;
4016 }
4017
4018 sub restore_tar_archive {
4019     my ($archive, $vmid, $user, $opts) = @_;
4020
4021     if ($archive ne '-') {
4022         my $firstfile = tar_archive_read_firstfile($archive);
4023         die "ERROR: file '$archive' dos not lock like a QemuServer vzdump backup\n"
4024             if $firstfile ne 'qemu-server.conf';
4025     }
4026
4027     my $storecfg = cfs_read_file('storage.cfg');
4028
4029     # destroy existing data - keep empty config
4030     my $vmcfgfn = PVE::QemuServer::config_file($vmid);
4031     destroy_vm($storecfg, $vmid, 1) if -f $vmcfgfn;
4032
4033     my $tocmd = "/usr/lib/qemu-server/qmextract";
4034
4035     $tocmd .= " --storage " . PVE::Tools::shellquote($opts->{storage}) if $opts->{storage};
4036     $tocmd .= " --pool " . PVE::Tools::shellquote($opts->{pool}) if $opts->{pool};
4037     $tocmd .= ' --prealloc' if $opts->{prealloc};
4038     $tocmd .= ' --info' if $opts->{info};
4039
4040     # tar option "xf" does not autodetect compression when read from STDIN,
4041     # so we pipe to zcat
4042     my $cmd = "zcat -f|tar xf " . PVE::Tools::shellquote($archive) . " " .
4043         PVE::Tools::shellquote("--to-command=$tocmd");
4044
4045     my $tmpdir = "/var/tmp/vzdumptmp$$";
4046     mkpath $tmpdir;
4047
4048     local $ENV{VZDUMP_TMPDIR} = $tmpdir;
4049     local $ENV{VZDUMP_VMID} = $vmid;
4050     local $ENV{VZDUMP_USER} = $user;
4051
4052     my $conffile = config_file($vmid);
4053     my $tmpfn = "$conffile.$$.tmp";
4054
4055     # disable interrupts (always do cleanups)
4056     local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
4057         print STDERR "got interrupt - ignored\n";
4058     };
4059
4060     eval {
4061         # enable interrupts
4062         local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
4063             die "interrupted by signal\n";
4064         };
4065
4066         if ($archive eq '-') {
4067             print "extracting archive from STDIN\n";
4068             run_command($cmd, input => "<&STDIN");
4069         } else {
4070             print "extracting archive '$archive'\n";
4071             run_command($cmd);
4072         }
4073
4074         return if $opts->{info};
4075
4076         # read new mapping
4077         my $map = {};
4078         my $statfile = "$tmpdir/qmrestore.stat";
4079         if (my $fd = IO::File->new($statfile, "r")) {
4080             while (defined (my $line = <$fd>)) {
4081                 if ($line =~ m/vzdump:([^\s:]*):(\S+)$/) {
4082                     $map->{$1} = $2 if $1;
4083                 } else {
4084                     print STDERR "unable to parse line in statfile - $line\n";
4085                 }
4086             }
4087             $fd->close();
4088         }
4089
4090         my $confsrc = "$tmpdir/qemu-server.conf";
4091
4092         my $srcfd = new IO::File($confsrc, "r") ||
4093             die "unable to open file '$confsrc'\n";
4094
4095         my $outfd = new IO::File ($tmpfn, "w") ||
4096             die "unable to write config for VM $vmid\n";
4097
4098         my $cookie = { netcount => 0 };
4099         while (defined (my $line = <$srcfd>)) {
4100             restore_update_config_line($outfd, $cookie, $vmid, $map, $line, $opts->{unique});
4101         }
4102
4103         $srcfd->close();
4104         $outfd->close();
4105     };
4106     my $err = $@;
4107
4108     if ($err) {
4109
4110         unlink $tmpfn;
4111
4112         tar_restore_cleanup($storecfg, "$tmpdir/qmrestore.stat") if !$opts->{info};
4113
4114         die $err;
4115     }
4116
4117     rmtree $tmpdir;
4118
4119     rename $tmpfn, $conffile ||
4120         die "unable to commit configuration file '$conffile'\n";
4121
4122     PVE::Cluster::cfs_update(); # make sure we read new file
4123
4124     eval { rescan($vmid, 1); };
4125     warn $@ if $@;
4126 };
4127
4128
4129 # Internal snapshots
4130
4131 # NOTE: Snapshot create/delete involves several non-atomic
4132 # action, and can take a long time.
4133 # So we try to avoid locking the file and use 'lock' variable
4134 # inside the config file instead.
4135
4136 my $snapshot_copy_config = sub {
4137     my ($source, $dest) = @_;
4138
4139     foreach my $k (keys %$source) {
4140         next if $k eq 'snapshots';
4141         next if $k eq 'snapstate';
4142         next if $k eq 'snaptime';
4143         next if $k eq 'vmstate';
4144         next if $k eq 'lock';
4145         next if $k eq 'digest';
4146         next if $k eq 'description';
4147         next if $k =~ m/^unused\d+$/;
4148
4149         $dest->{$k} = $source->{$k};
4150     }
4151 };
4152
4153 my $snapshot_apply_config = sub {
4154     my ($conf, $snap) = @_;
4155
4156     # copy snapshot list
4157     my $newconf = {
4158         snapshots => $conf->{snapshots},
4159     };
4160
4161     # keep description and list of unused disks
4162     foreach my $k (keys %$conf) {
4163         next if !($k =~ m/^unused\d+$/ || $k eq 'description');
4164         $newconf->{$k} = $conf->{$k};
4165     }
4166
4167     &$snapshot_copy_config($snap, $newconf);
4168
4169     return $newconf;
4170 };
4171
4172 sub foreach_writable_storage {
4173     my ($conf, $func) = @_;
4174
4175     my $sidhash = {};
4176
4177     foreach my $ds (keys %$conf) {
4178         next if !valid_drivename($ds);
4179
4180         my $drive = parse_drive($ds, $conf->{$ds});
4181         next if !$drive;
4182         next if drive_is_cdrom($drive);
4183
4184         my $volid = $drive->{file};
4185
4186         my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
4187         $sidhash->{$sid} = $sid if $sid;
4188     }
4189
4190     foreach my $sid (sort keys %$sidhash) {
4191         &$func($sid);
4192     }
4193 }
4194
4195 my $alloc_vmstate_volid = sub {
4196     my ($storecfg, $vmid, $conf, $snapname) = @_;
4197
4198     # Note: we try to be smart when selecting a $target storage
4199
4200     my $target;
4201
4202     # search shared storage first
4203     foreach_writable_storage($conf, sub {
4204         my ($sid) = @_;
4205         my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4206         return if !$scfg->{shared};
4207
4208         $target = $sid if !$target || $scfg->{path}; # prefer file based storage
4209     });
4210
4211     if (!$target) {
4212         # now search local storage
4213         foreach_writable_storage($conf, sub {
4214             my ($sid) = @_;
4215             my $scfg = PVE::Storage::storage_config($storecfg, $sid);
4216             return if $scfg->{shared};
4217
4218             $target = $sid if !$target || $scfg->{path}; # prefer file based storage;
4219         });
4220     }
4221
4222     $target = 'local' if !$target;
4223
4224     my $driver_state_size = 500; # assume 32MB is enough to safe all driver state;
4225     # we abort live save after $conf->{memory}, so we need at max twice that space
4226     my $size = $conf->{memory}*2 + $driver_state_size;
4227
4228     my $name = "vm-$vmid-state-$snapname";
4229     my $scfg = PVE::Storage::storage_config($storecfg, $target);
4230     $name .= ".raw" if $scfg->{path}; # add filename extension for file base storage
4231     my $volid = PVE::Storage::vdisk_alloc($storecfg, $target, $vmid, 'raw', $name, $size*1024);
4232
4233     return $volid;
4234 };
4235
4236 my $snapshot_prepare = sub {
4237     my ($vmid, $snapname, $save_vmstate, $comment) = @_;
4238
4239     my $snap;
4240
4241     my $updatefn =  sub {
4242
4243         my $conf = load_config($vmid);
4244
4245         die "you can't take a snapshot if it's a template\n"
4246             if is_template($conf);
4247
4248         check_lock($conf);
4249
4250         $conf->{lock} = 'snapshot';
4251
4252         die "snapshot name '$snapname' already used\n"
4253             if defined($conf->{snapshots}->{$snapname});
4254
4255         my $storecfg = PVE::Storage::config();
4256         die "snapshot feature is not available" if !has_feature('snapshot', $conf, $storecfg);
4257
4258         $snap = $conf->{snapshots}->{$snapname} = {};
4259
4260         if ($save_vmstate && check_running($vmid)) {
4261             $snap->{vmstate} = &$alloc_vmstate_volid($storecfg, $vmid, $conf, $snapname);
4262         }
4263
4264         &$snapshot_copy_config($conf, $snap);
4265
4266         $snap->{snapstate} = "prepare";
4267         $snap->{snaptime} = time();
4268         $snap->{description} = $comment if $comment;
4269
4270         # always overwrite machine if we save vmstate. This makes sure we
4271         # can restore it later using correct machine type
4272         $snap->{machine} = get_current_qemu_machine($vmid) if $snap->{vmstate};
4273
4274         update_config_nolock($vmid, $conf, 1);
4275     };
4276
4277     lock_config($vmid, $updatefn);
4278
4279     return $snap;
4280 };
4281
4282 my $snapshot_commit = sub {
4283     my ($vmid, $snapname) = @_;
4284
4285     my $updatefn = sub {
4286
4287         my $conf = load_config($vmid);
4288
4289         die "missing snapshot lock\n"
4290             if !($conf->{lock} && $conf->{lock} eq 'snapshot');
4291
4292         my $snap = $conf->{snapshots}->{$snapname};
4293
4294         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4295
4296         die "wrong snapshot state\n"
4297             if !($snap->{snapstate} && $snap->{snapstate} eq "prepare");
4298
4299         delete $snap->{snapstate};
4300         delete $conf->{lock};
4301
4302         my $newconf = &$snapshot_apply_config($conf, $snap);
4303
4304         $newconf->{parent} = $snapname;
4305
4306         update_config_nolock($vmid, $newconf, 1);
4307     };
4308
4309     lock_config($vmid, $updatefn);
4310 };
4311
4312 sub snapshot_rollback {
4313     my ($vmid, $snapname) = @_;
4314
4315     my $snap;
4316
4317     my $prepare = 1;
4318
4319     my $storecfg = PVE::Storage::config();
4320
4321     my $updatefn = sub {
4322
4323         my $conf = load_config($vmid);
4324
4325         die "you can't rollback if vm is a template\n" if is_template($conf);
4326
4327         $snap = $conf->{snapshots}->{$snapname};
4328
4329         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4330
4331         die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
4332             if $snap->{snapstate};
4333
4334         if ($prepare) {
4335             check_lock($conf);
4336             vm_stop($storecfg, $vmid, undef, undef, 5, undef, undef);
4337         }
4338
4339         die "unable to rollback vm $vmid: vm is running\n"
4340             if check_running($vmid);
4341
4342         if ($prepare) {
4343             $conf->{lock} = 'rollback';
4344         } else {
4345             die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
4346             delete $conf->{lock};
4347         }
4348
4349         my $forcemachine;
4350
4351         if (!$prepare) {
4352             my $has_machine_config = defined($conf->{machine});
4353
4354             # copy snapshot config to current config
4355             $conf = &$snapshot_apply_config($conf, $snap);
4356             $conf->{parent} = $snapname;
4357
4358             # Note: old code did not store 'machine', so we try to be smart
4359             # and guess the snapshot was generated with kvm 1.4 (pc-i440fx-1.4).
4360             $forcemachine = $conf->{machine} || 'pc-i440fx-1.4';
4361             # we remove the 'machine' configuration if not explicitly specified
4362             # in the original config.
4363             delete $conf->{machine} if $snap->{vmstate} && !$has_machine_config;
4364         }
4365
4366         update_config_nolock($vmid, $conf, 1);
4367
4368         if (!$prepare && $snap->{vmstate}) {
4369             my $statefile = PVE::Storage::path($storecfg, $snap->{vmstate});
4370             vm_start($storecfg, $vmid, $statefile, undef, undef, undef, $forcemachine);
4371         }
4372     };
4373
4374     lock_config($vmid, $updatefn);
4375
4376     foreach_drive($snap, sub {
4377         my ($ds, $drive) = @_;
4378
4379         return if drive_is_cdrom($drive);
4380
4381         my $volid = $drive->{file};
4382         my $device = "drive-$ds";
4383
4384         PVE::Storage::volume_snapshot_rollback($storecfg, $volid, $snapname);
4385     });
4386
4387     $prepare = 0;
4388     lock_config($vmid, $updatefn);
4389 }
4390
4391 my $savevm_wait = sub {
4392     my ($vmid) = @_;
4393
4394     for(;;) {
4395         my $stat = vm_mon_cmd_nocheck($vmid, "query-savevm");
4396         if (!$stat->{status}) {
4397             die "savevm not active\n";
4398         } elsif ($stat->{status} eq 'active') {
4399             sleep(1);
4400             next;
4401         } elsif ($stat->{status} eq 'completed') {
4402             last;
4403         } else {
4404             die "query-savevm returned status '$stat->{status}'\n";
4405         }
4406     }
4407 };
4408
4409 sub snapshot_create {
4410     my ($vmid, $snapname, $save_vmstate, $freezefs, $comment) = @_;
4411
4412     my $snap = &$snapshot_prepare($vmid, $snapname, $save_vmstate, $comment);
4413
4414     $freezefs = $save_vmstate = 0 if !$snap->{vmstate}; # vm is not running
4415
4416     my $drivehash = {};
4417
4418     my $running = check_running($vmid);
4419
4420     eval {
4421         # create internal snapshots of all drives
4422
4423         my $storecfg = PVE::Storage::config();
4424
4425         if ($running) {
4426             if ($snap->{vmstate}) {
4427                 my $path = PVE::Storage::path($storecfg, $snap->{vmstate});
4428                 vm_mon_cmd($vmid, "savevm-start", statefile => $path);
4429                 &$savevm_wait($vmid);
4430             } else {
4431                 vm_mon_cmd($vmid, "savevm-start");
4432             }
4433         };
4434
4435         qga_freezefs($vmid) if $running && $freezefs;
4436
4437         foreach_drive($snap, sub {
4438             my ($ds, $drive) = @_;
4439
4440             return if drive_is_cdrom($drive);
4441
4442             my $volid = $drive->{file};
4443             my $device = "drive-$ds";
4444
4445             qemu_volume_snapshot($vmid, $device, $storecfg, $volid, $snapname);
4446             $drivehash->{$ds} = 1;
4447        });
4448     };
4449     my $err = $@;
4450
4451     eval { qga_unfreezefs($vmid) if $running && $freezefs; };
4452     warn $@ if $@;
4453
4454     eval { vm_mon_cmd($vmid, "savevm-end") if $running; };
4455     warn $@ if $@;
4456
4457     if ($err) {
4458         warn "snapshot create failed: starting cleanup\n";
4459         eval { snapshot_delete($vmid, $snapname, 0, $drivehash); };
4460         warn $@ if $@;
4461         die $err;
4462     }
4463
4464     &$snapshot_commit($vmid, $snapname);
4465 }
4466
4467 # Note: $drivehash is only set when called from snapshot_create.
4468 sub snapshot_delete {
4469     my ($vmid, $snapname, $force, $drivehash) = @_;
4470
4471     my $prepare = 1;
4472
4473     my $snap;
4474     my $unused = [];
4475
4476     my $unlink_parent = sub {
4477         my ($confref, $new_parent) = @_;
4478
4479         if ($confref->{parent} && $confref->{parent} eq $snapname) {
4480             if ($new_parent) {
4481                 $confref->{parent} = $new_parent;
4482             } else {
4483                 delete $confref->{parent};
4484             }
4485         }
4486     };
4487
4488     my $updatefn =  sub {
4489         my ($remove_drive) = @_;
4490
4491         my $conf = load_config($vmid);
4492
4493         if (!$drivehash) {
4494             check_lock($conf);
4495             die "you can't delete a snapshot if vm is a template\n"
4496                 if is_template($conf);
4497         }
4498
4499         $snap = $conf->{snapshots}->{$snapname};
4500
4501         die "snapshot '$snapname' does not exist\n" if !defined($snap);
4502
4503         # remove parent refs
4504         &$unlink_parent($conf, $snap->{parent});
4505         foreach my $sn (keys %{$conf->{snapshots}}) {
4506             next if $sn eq $snapname;
4507             &$unlink_parent($conf->{snapshots}->{$sn}, $snap->{parent});
4508         }
4509
4510         if ($remove_drive) {
4511             if ($remove_drive eq 'vmstate') {
4512                 delete $snap->{$remove_drive};
4513             } else {
4514                 my $drive = parse_drive($remove_drive, $snap->{$remove_drive});
4515                 my $volid = $drive->{file};
4516                 delete $snap->{$remove_drive};
4517                 add_unused_volume($conf, $volid);
4518             }
4519         }
4520
4521         if ($prepare) {
4522             $snap->{snapstate} = 'delete';
4523         } else {
4524             delete $conf->{snapshots}->{$snapname};
4525             delete $conf->{lock} if $drivehash;
4526             foreach my $volid (@$unused) {
4527                 add_unused_volume($conf, $volid);
4528             }
4529         }
4530
4531         update_config_nolock($vmid, $conf, 1);
4532     };
4533
4534     lock_config($vmid, $updatefn);
4535
4536     # now remove vmstate file
4537
4538     my $storecfg = PVE::Storage::config();
4539
4540     if ($snap->{vmstate}) {
4541         eval {  PVE::Storage::vdisk_free($storecfg, $snap->{vmstate}); };
4542         if (my $err = $@) {
4543             die $err if !$force;
4544             warn $err;
4545         }
4546         # save changes (remove vmstate from snapshot)
4547         lock_config($vmid, $updatefn, 'vmstate') if !$force;
4548     };
4549
4550     # now remove all internal snapshots
4551     foreach_drive($snap, sub {
4552         my ($ds, $drive) = @_;
4553
4554         return if drive_is_cdrom($drive);
4555
4556         my $volid = $drive->{file};
4557         my $device = "drive-$ds";
4558
4559         if (!$drivehash || $drivehash->{$ds}) {
4560             eval { qemu_volume_snapshot_delete($vmid, $device, $storecfg, $volid, $snapname); };
4561             if (my $err = $@) {
4562                 die $err if !$force;
4563                 warn $err;
4564             }
4565         }
4566
4567         # save changes (remove drive fron snapshot)
4568         lock_config($vmid, $updatefn, $ds) if !$force;
4569         push @$unused, $volid;
4570     });
4571
4572     # now cleanup config
4573     $prepare = 0;
4574     lock_config($vmid, $updatefn);
4575 }
4576
4577 sub has_feature {
4578     my ($feature, $conf, $storecfg, $snapname, $running) = @_;
4579
4580     my $err;
4581     foreach_drive($conf, sub {
4582         my ($ds, $drive) = @_;
4583
4584         return if drive_is_cdrom($drive);
4585         my $volid = $drive->{file};
4586         $err = 1 if !PVE::Storage::volume_has_feature($storecfg, $feature, $volid, $snapname, $running);
4587     });
4588
4589     return $err ? 0 : 1;
4590 }
4591
4592 sub template_create {
4593     my ($vmid, $conf, $disk) = @_;
4594
4595     my $storecfg = PVE::Storage::config();
4596
4597     foreach_drive($conf, sub {
4598         my ($ds, $drive) = @_;
4599
4600         return if drive_is_cdrom($drive);
4601         return if $disk && $ds ne $disk;
4602
4603         my $volid = $drive->{file};
4604         return if !PVE::Storage::volume_has_feature($storecfg, 'template', $volid);
4605
4606         my $voliddst = PVE::Storage::vdisk_create_base($storecfg, $volid);
4607         $drive->{file} = $voliddst;
4608         $conf->{$ds} = print_drive($vmid, $drive);
4609         update_config_nolock($vmid, $conf, 1);
4610     });
4611 }
4612
4613 sub is_template {
4614     my ($conf) = @_;
4615
4616     return 1 if defined $conf->{template} && $conf->{template} == 1;
4617 }
4618
4619 sub qemu_img_convert {
4620     my ($src_volid, $dst_volid, $size, $snapname) = @_;
4621
4622     my $storecfg = PVE::Storage::config();
4623     my ($src_storeid, $src_volname) = PVE::Storage::parse_volume_id($src_volid, 1);
4624     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
4625
4626     if ($src_storeid && $dst_storeid) {
4627         my $src_scfg = PVE::Storage::storage_config($storecfg, $src_storeid);
4628         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
4629
4630         my $src_format = qemu_img_format($src_scfg, $src_volname);
4631         my $dst_format = qemu_img_format($dst_scfg, $dst_volname);
4632
4633         my $src_path = PVE::Storage::path($storecfg, $src_volid, $snapname);
4634         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
4635
4636         my $cmd = [];
4637         push @$cmd, '/usr/bin/qemu-img', 'convert', '-t', 'writeback', '-p', '-C';
4638         push @$cmd, '-s', $snapname if($snapname && $src_format eq "qcow2");
4639         push @$cmd, '-f', $src_format, '-O', $dst_format, $src_path, $dst_path;
4640
4641         my $parser = sub {
4642             my $line = shift;
4643             if($line =~ m/\((\S+)\/100\%\)/){
4644                 my $percent = $1;
4645                 my $transferred = int($size * $percent / 100);
4646                 my $remaining = $size - $transferred;
4647
4648                 print "transferred: $transferred bytes remaining: $remaining bytes total: $size bytes progression: $percent %\n";
4649             }
4650
4651         };
4652
4653         eval  { run_command($cmd, timeout => undef, outfunc => $parser); };
4654         my $err = $@;
4655         die "copy failed: $err" if $err;
4656     }
4657 }
4658
4659 sub qemu_img_format {
4660     my ($scfg, $volname) = @_;
4661
4662     if ($scfg->{path} && $volname =~ m/\.(raw|qcow2|qed|vmdk)$/) {
4663         return $1;
4664     } elsif ($scfg->{type} eq 'iscsi') {
4665         return "host_device";
4666     } else {
4667         return "raw";
4668     }
4669 }
4670
4671 sub qemu_drive_mirror {
4672     my ($vmid, $drive, $dst_volid, $vmiddst, $maxwait) = @_;
4673
4674     my $count = 1;
4675     my $old_len = 0;
4676     my $frozen = undef;
4677
4678     my $storecfg = PVE::Storage::config();
4679     my ($dst_storeid, $dst_volname) = PVE::Storage::parse_volume_id($dst_volid, 1);
4680
4681     if ($dst_storeid) {
4682         my $dst_scfg = PVE::Storage::storage_config($storecfg, $dst_storeid);
4683
4684         my $format;
4685         if ($dst_volname =~ m/\.(raw|qcow2)$/){
4686             $format = $1;
4687         }
4688
4689         my $dst_path = PVE::Storage::path($storecfg, $dst_volid);
4690
4691         if ($format) {
4692             #fixme : sometime drive-mirror timeout, but works fine after.
4693             # (I have see the problem with big volume > 200GB), so we need to eval
4694             eval { vm_mon_cmd($vmid, "drive-mirror", timeout => 10, device => "drive-$drive", mode => "existing",
4695                               sync => "full", target => $dst_path, format => $format); };
4696         } else {
4697             eval { vm_mon_cmd($vmid, "drive-mirror", timeout => 10, device => "drive-$drive", mode => "existing",
4698                               sync => "full", target => $dst_path); };
4699         }
4700
4701         eval {
4702             while (1) {
4703                 my $stats = vm_mon_cmd($vmid, "query-block-jobs");
4704                 my $stat = @$stats[0];
4705                 die "mirroring job seem to have die. Maybe do you have bad sectors?" if !$stat;
4706                 die "error job is not mirroring" if $stat->{type} ne "mirror";
4707
4708                 my $transferred = $stat->{offset};
4709                 my $total = $stat->{len};
4710                 my $remaining = $total - $transferred;
4711                 my $percent = sprintf "%.2f", ($transferred * 100 / $total);
4712
4713                 print "transferred: $transferred bytes remaining: $remaining bytes total: $total bytes progression: $percent %\n";
4714
4715                 last if ($stat->{len} == $stat->{offset});
4716                 if ($old_len == $stat->{offset}) {
4717                     if ($maxwait && $count > $maxwait) {
4718                     # if writes to disk occurs the disk needs to be freezed
4719                     # to be able to complete the migration
4720                         vm_suspend($vmid,1);
4721                         $count = 0;
4722                         $frozen = 1;
4723                     } else {
4724                         $count++ unless $frozen;
4725                     }
4726                 } elsif ($frozen) {
4727                     vm_resume($vmid,1);
4728                     $count = 0;
4729                 }
4730                 $old_len = $stat->{offset};
4731                 sleep 1;
4732             }
4733
4734             if ($vmiddst == $vmid) {
4735                 # switch the disk if source and destination are on the same guest
4736                 vm_mon_cmd($vmid, "block-job-complete", device => "drive-$drive");
4737             }
4738         };
4739         if (my $err = $@) {
4740             eval { vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive"); };
4741             die "mirroring error: $err";
4742         }
4743
4744         if ($vmiddst != $vmid) {
4745             # if we clone a disk for a new target vm, we don't switch the disk
4746             vm_mon_cmd($vmid, "block-job-cancel", device => "drive-$drive");
4747         }
4748     }
4749 }
4750
4751 sub clone_disk {
4752     my ($storecfg, $vmid, $running, $drivename, $drive, $snapname,
4753         $newvmid, $storage, $format, $full, $newvollist) = @_;
4754
4755     my $newvolid;
4756
4757     if (!$full) {
4758         print "create linked clone of drive $drivename ($drive->{file})\n";
4759         $newvolid = PVE::Storage::vdisk_clone($storecfg,  $drive->{file}, $newvmid);
4760         push @$newvollist, $newvolid;
4761     } else {
4762         my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
4763         $storeid = $storage if $storage;
4764
4765         my ($defFormat, $validFormats) = PVE::Storage::storage_default_format($storecfg, $storeid);
4766         if (!$format) {
4767             $format = $drive->{format} || $defFormat;
4768         }
4769
4770         # test if requested format is supported - else use default
4771         my $supported = grep { $_ eq $format } @$validFormats;
4772         $format = $defFormat if !$supported;
4773
4774         my ($size) = PVE::Storage::volume_size_info($storecfg, $drive->{file}, 3);
4775
4776         print "create full clone of drive $drivename ($drive->{file})\n";
4777         $newvolid = PVE::Storage::vdisk_alloc($storecfg, $storeid, $newvmid, $format, undef, ($size/1024));
4778         push @$newvollist, $newvolid;
4779
4780         if (!$running || $snapname) {
4781             qemu_img_convert($drive->{file}, $newvolid, $size, $snapname);
4782         } else {
4783             qemu_drive_mirror($vmid, $drivename, $newvolid, $newvmid);
4784         }
4785     }
4786
4787     my ($size) = PVE::Storage::volume_size_info($storecfg, $newvolid, 3);
4788
4789     my $disk = $drive;
4790     $disk->{format} = undef;
4791     $disk->{file} = $newvolid;
4792     $disk->{size} = $size;
4793
4794     return $disk;
4795 }
4796
4797 # this only works if VM is running
4798 sub get_current_qemu_machine {
4799     my ($vmid) = @_;
4800
4801     my $cmd = { execute => 'query-machines', arguments => {} };
4802     my $res = PVE::QemuServer::vm_qmp_command($vmid, $cmd);
4803
4804     my ($current, $default);
4805     foreach my $e (@$res) {
4806         $default = $e->{name} if $e->{'is-default'};
4807         $current = $e->{name} if $e->{'is-current'};
4808     }
4809
4810     # fallback to the default machine if current is not supported by qemu
4811     return $current || $default || 'pc';
4812 }
4813
4814 1;