PVE/QemuServer.pm

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