PVE/Storage.pm

   1 package PVE::Storage;
   2
   3 use strict;
   4 use warnings;
   5 use Data::Dumper;
   6
   7 use POSIX;
   8 use IO::Select;
   9 use IO::File;
  10 use File::Basename;
  11 use File::Path;
  12 use Cwd 'abs_path';
  13 use Socket;
  14
  15 use PVE::Tools qw(run_command file_read_firstline);
  16 use PVE::Cluster qw(cfs_read_file cfs_lock_file);
  17 use PVE::Exception qw(raise_param_exc);
  18 use PVE::JSONSchema;
  19 use PVE::INotify;
  20 use PVE::RPCEnvironment;
  21
  22 use PVE::Storage::Plugin;
  23 use PVE::Storage::DirPlugin;
  24 use PVE::Storage::LVMPlugin;
  25 use PVE::Storage::NFSPlugin;
  26 use PVE::Storage::ISCSIPlugin;
  27 use PVE::Storage::RBDPlugin;
  28 use PVE::Storage::SheepdogPlugin;
  29 use PVE::Storage::ISCSIDirectPlugin;
  30 use PVE::Storage::GlusterfsPlugin;
  31 use PVE::Storage::ZFSPoolPlugin;
  32 use PVE::Storage::ZFSPlugin;
  33 use PVE::Storage::DRBDPlugin;
  34
  35 # load and initialize all plugins
  36 PVE::Storage::DirPlugin->register();
  37 PVE::Storage::LVMPlugin->register();
  38 PVE::Storage::NFSPlugin->register();
  39 PVE::Storage::ISCSIPlugin->register();
  40 PVE::Storage::RBDPlugin->register();
  41 PVE::Storage::SheepdogPlugin->register();
  42 PVE::Storage::ISCSIDirectPlugin->register();
  43 PVE::Storage::GlusterfsPlugin->register();
  44 PVE::Storage::ZFSPoolPlugin->register();
  45 PVE::Storage::ZFSPlugin->register();
  46 PVE::Storage::DRBDPlugin->register();
  47 PVE::Storage::Plugin->init();
  48
  49 my $UDEVADM = '/sbin/udevadm';
  50
  51 #  PVE::Storage utility functions
  52
  53 sub config {
  54     return cfs_read_file("storage.cfg");
  55 }
  56
  57 sub lock_storage_config {
  58     my ($code, $errmsg) = @_;
  59
  60     cfs_lock_file("storage.cfg", undef, $code);
  61     my $err = $@;
  62     if ($err) {
  63         $errmsg ? die "$errmsg: $err" : die $err;
  64     }
  65 }
  66
  67 sub storage_config {
  68     my ($cfg, $storeid, $noerr) = @_;
  69
  70     die "no storage id specified\n" if !$storeid;
  71
  72     my $scfg = $cfg->{ids}->{$storeid};
  73
  74     die "storage '$storeid' does not exists\n" if (!$noerr && !$scfg);
  75
  76     return $scfg;
  77 }
  78
  79 sub storage_check_node {
  80     my ($cfg, $storeid, $node, $noerr) = @_;
  81
  82     my $scfg = storage_config($cfg, $storeid);
  83
  84     if ($scfg->{nodes}) {
  85         $node = PVE::INotify::nodename() if !$node || ($node eq 'localhost');
  86         if (!$scfg->{nodes}->{$node}) {
  87             die "storage '$storeid' is not available on node '$node'\n" if !$noerr;
  88             return undef;
  89         }
  90     }
  91
  92     return $scfg;
  93 }
  94
  95 sub storage_check_enabled {
  96     my ($cfg, $storeid, $node, $noerr) = @_;
  97
  98     my $scfg = storage_config($cfg, $storeid);
  99
 100     if ($scfg->{disable}) {
 101         die "storage '$storeid' is disabled\n" if !$noerr;
 102         return undef;
 103     }
 104
 105     return storage_check_node($cfg, $storeid, $node, $noerr);
 106 }
 107
 108 sub storage_ids {
 109     my ($cfg) = @_;
 110
 111     return keys %{$cfg->{ids}};
 112 }
 113
 114 sub file_size_info {
 115     my ($filename, $timeout) = @_;
 116
 117     return PVE::Storage::Plugin::file_size_info($filename, $timeout);
 118 }
 119
 120 sub volume_size_info {
 121     my ($cfg, $volid, $timeout) = @_;
 122
 123     my ($storeid, $volname) = parse_volume_id($volid, 1);
 124     if ($storeid) {
 125         my $scfg = storage_config($cfg, $storeid);
 126         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 127         return $plugin->volume_size_info($scfg, $storeid, $volname, $timeout);
 128     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 129         return file_size_info($volid, $timeout);
 130     } else {
 131         return 0;
 132     }
 133 }
 134
 135 sub volume_resize {
 136     my ($cfg, $volid, $size, $running) = @_;
 137
 138     my ($storeid, $volname) = parse_volume_id($volid, 1);
 139     if ($storeid) {
 140         my $scfg = storage_config($cfg, $storeid);
 141         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 142         return $plugin->volume_resize($scfg, $storeid, $volname, $size, $running);
 143     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 144         die "resize file/device '$volid' is not possible\n";
 145     } else {
 146         die "unable to parse volume ID '$volid'\n";
 147     }
 148 }
 149
 150 sub volume_rollback_is_possible {
 151     my ($cfg, $volid, $snap) = @_;
 152
 153     my ($storeid, $volname) = parse_volume_id($volid, 1);
 154     if ($storeid) {
 155         my $scfg = storage_config($cfg, $storeid);
 156         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 157         return $plugin->volume_rollback_is_possible($scfg, $storeid, $volname, $snap);
 158     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 159         die "snapshot rollback file/device '$volid' is not possible\n";
 160     } else {
 161         die "unable to parse volume ID '$volid'\n";
 162     }
 163 }
 164
 165 sub volume_snapshot {
 166     my ($cfg, $volid, $snap) = @_;
 167
 168     my ($storeid, $volname) = parse_volume_id($volid, 1);
 169     if ($storeid) {
 170         my $scfg = storage_config($cfg, $storeid);
 171         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 172         return $plugin->volume_snapshot($scfg, $storeid, $volname, $snap);
 173     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 174         die "snapshot file/device '$volid' is not possible\n";
 175     } else {
 176         die "unable to parse volume ID '$volid'\n";
 177     }
 178 }
 179
 180 sub volume_snapshot_rollback {
 181     my ($cfg, $volid, $snap) = @_;
 182
 183     my ($storeid, $volname) = parse_volume_id($volid, 1);
 184     if ($storeid) {
 185         my $scfg = storage_config($cfg, $storeid);
 186         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 187         $plugin->volume_rollback_is_possible($scfg, $storeid, $volname, $snap);
 188         return $plugin->volume_snapshot_rollback($scfg, $storeid, $volname, $snap);
 189     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 190         die "snapshot rollback file/device '$volid' is not possible\n";
 191     } else {
 192         die "unable to parse volume ID '$volid'\n";
 193     }
 194 }
 195
 196 sub volume_snapshot_delete {
 197     my ($cfg, $volid, $snap, $running) = @_;
 198
 199     my ($storeid, $volname) = parse_volume_id($volid, 1);
 200     if ($storeid) {
 201         my $scfg = storage_config($cfg, $storeid);
 202         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 203         return $plugin->volume_snapshot_delete($scfg, $storeid, $volname, $snap, $running);
 204     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 205         die "snapshot delete file/device '$volid' is not possible\n";
 206     } else {
 207         die "unable to parse volume ID '$volid'\n";
 208     }
 209 }
 210
 211 sub volume_has_feature {
 212     my ($cfg, $feature, $volid, $snap, $running) = @_;
 213
 214     my ($storeid, $volname) = parse_volume_id($volid, 1);
 215     if ($storeid) {
 216         my $scfg = storage_config($cfg, $storeid);
 217         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 218         return $plugin->volume_has_feature($scfg, $feature, $storeid, $volname, $snap, $running);
 219     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 220         return undef;
 221     } else {
 222         return undef;
 223     }
 224 }
 225
 226 sub get_image_dir {
 227     my ($cfg, $storeid, $vmid) = @_;
 228
 229     my $scfg = storage_config($cfg, $storeid);
 230     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 231
 232     my $path = $plugin->get_subdir($scfg, 'images');
 233
 234     return $vmid ? "$path/$vmid" : $path;
 235 }
 236
 237 sub get_private_dir {
 238     my ($cfg, $storeid, $vmid) = @_;
 239
 240     my $scfg = storage_config($cfg, $storeid);
 241     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 242
 243     my $path = $plugin->get_subdir($scfg, 'rootdir');
 244
 245     return $vmid ? "$path/$vmid" : $path;
 246 }
 247
 248 sub get_iso_dir {
 249     my ($cfg, $storeid) = @_;
 250
 251     my $scfg = storage_config($cfg, $storeid);
 252     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 253
 254     return $plugin->get_subdir($scfg, 'iso');
 255 }
 256
 257 sub get_vztmpl_dir {
 258     my ($cfg, $storeid) = @_;
 259
 260     my $scfg = storage_config($cfg, $storeid);
 261     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 262
 263     return $plugin->get_subdir($scfg, 'vztmpl');
 264 }
 265
 266 sub get_backup_dir {
 267     my ($cfg, $storeid) = @_;
 268
 269     my $scfg = storage_config($cfg, $storeid);
 270     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 271
 272     return $plugin->get_subdir($scfg, 'backup');
 273 }
 274
 275 # library implementation
 276
 277 sub parse_vmid {
 278     my $vmid = shift;
 279
 280     die "VMID '$vmid' contains illegal characters\n" if $vmid !~ m/^\d+$/;
 281
 282     return int($vmid);
 283 }
 284
 285 sub parse_volname {
 286     my ($cfg, $volid) = @_;
 287
 288     my ($storeid, $volname) = parse_volume_id($volid);
 289
 290     my $scfg = storage_config($cfg, $storeid);
 291
 292     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 293     return $plugin->parse_volname($volname);
 294 }
 295
 296 sub parse_volume_id {
 297     my ($volid, $noerr) = @_;
 298
 299     return PVE::Storage::Plugin::parse_volume_id($volid, $noerr);
 300 }
 301
 302 sub volume_is_base {
 303     my ($cfg, $volid) = @_;
 304
 305     my ($sid, $volname) = parse_volume_id($volid, 1);
 306     return 0 if !$sid;
 307
 308     if (my $scfg = $cfg->{ids}->{$sid}) {
 309         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 310         my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
 311             $plugin->parse_volname($volname);
 312         return $isBase ? 1 : 0;
 313     } else {
 314         # stale volid with undefined storage - so we can just guess
 315         if ($volid =~ m/base-/) {
 316             return 1;
 317         }
 318     }
 319
 320     return 0;
 321 }
 322
 323 # try to map a filesystem path to a volume identifier
 324 sub path_to_volume_id {
 325     my ($cfg, $path) = @_;
 326
 327     my $ids = $cfg->{ids};
 328
 329     my ($sid, $volname) = parse_volume_id($path, 1);
 330     if ($sid) {
 331         if (my $scfg = $ids->{$sid}) {
 332             if ($scfg->{path}) {
 333                 my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 334                 my ($vtype, $name, $vmid) = $plugin->parse_volname($volname);
 335                 return ($vtype, $path);
 336             }
 337         }
 338         return ('');
 339     }
 340
 341     # Note: abs_path() return undef if $path doesn not exist
 342     # for example when nfs storage is not mounted
 343     $path = abs_path($path) || $path;
 344
 345     foreach my $sid (keys %$ids) {
 346         my $scfg = $ids->{$sid};
 347         next if !$scfg->{path};
 348         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 349         my $imagedir = $plugin->get_subdir($scfg, 'images');
 350         my $isodir = $plugin->get_subdir($scfg, 'iso');
 351         my $tmpldir = $plugin->get_subdir($scfg, 'vztmpl');
 352         my $backupdir = $plugin->get_subdir($scfg, 'backup');
 353         my $privatedir = $plugin->get_subdir($scfg, 'rootdir');
 354
 355         if ($path =~ m!^$imagedir/(\d+)/([^/\s]+)$!) {
 356             my $vmid = $1;
 357             my $name = $2;
 358
 359             my $vollist = $plugin->list_images($sid, $scfg, $vmid);
 360             foreach my $info (@$vollist) {
 361                 my ($storeid, $volname) = parse_volume_id($info->{volid});
 362                 my $volpath = $plugin->path($scfg, $volname, $storeid);
 363                 if ($volpath eq $path) {
 364                     return ('images', $info->{volid});
 365                 }
 366             }
 367         } elsif ($path =~ m!^$isodir/([^/]+\.[Ii][Ss][Oo])$!) {
 368             my $name = $1;
 369             return ('iso', "$sid:iso/$name");
 370         } elsif ($path =~ m!^$tmpldir/([^/]+\.tar\.gz)$!) {
 371             my $name = $1;
 372             return ('vztmpl', "$sid:vztmpl/$name");
 373         } elsif ($path =~ m!^$privatedir/(\d+)$!) {
 374             my $vmid = $1;
 375             return ('rootdir', "$sid:rootdir/$vmid");
 376         } elsif ($path =~ m!^$backupdir/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!) {
 377             my $name = $1;
 378             return ('iso', "$sid:backup/$name");
 379         }
 380     }
 381
 382     # can't map path to volume id
 383     return ('');
 384 }
 385
 386 sub path {
 387     my ($cfg, $volid, $snapname) = @_;
 388
 389     my ($storeid, $volname) = parse_volume_id($volid);
 390
 391     my $scfg = storage_config($cfg, $storeid);
 392
 393     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 394     my ($path, $owner, $vtype) = $plugin->path($scfg, $volname, $storeid, $snapname);
 395     return wantarray ? ($path, $owner, $vtype) : $path;
 396 }
 397
 398 sub abs_filesystem_path {
 399     my ($cfg, $volid) = @_;
 400
 401     my $path;
 402     if (PVE::Storage::parse_volume_id ($volid, 1)) {
 403         PVE::Storage::activate_volumes($cfg, [ $volid ]);
 404         $path = PVE::Storage::path($cfg, $volid);
 405     } else {
 406         if (-f $volid) {
 407             my $abspath = abs_path($volid);
 408             if ($abspath && $abspath =~ m|^(/.+)$|) {
 409                 $path = $1; # untaint any path
 410             }
 411         }
 412     }
 413
 414     die "can't find file '$volid'\n" if !($path && -f $path);
 415
 416     return $path;
 417 }
 418
 419 sub storage_migrate {
 420     my ($cfg, $volid, $target_host, $target_storeid, $target_volname) = @_;
 421
 422     my ($storeid, $volname) = parse_volume_id($volid);
 423     $target_volname = $volname if !$target_volname;
 424
 425     my $scfg = storage_config($cfg, $storeid);
 426
 427     # no need to migrate shared content
 428     return if $storeid eq $target_storeid && $scfg->{shared};
 429
 430     my $tcfg = storage_config($cfg, $target_storeid);
 431
 432     my $target_volid = "${target_storeid}:${target_volname}";
 433
 434     my $errstr = "unable to migrate '$volid' to '${target_volid}' on host '$target_host'";
 435
 436     my $sshoptions = "-o 'BatchMode=yes'";
 437     my $ssh = "/usr/bin/ssh $sshoptions";
 438
 439     local $ENV{RSYNC_RSH} = $ssh;
 440
 441     # only implemented for file system based storage
 442     if ($scfg->{path}) {
 443         if ($tcfg->{path}) {
 444
 445             my $src_plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 446             my $dst_plugin = PVE::Storage::Plugin->lookup($tcfg->{type});
 447             my $src = $src_plugin->path($scfg, $volname, $storeid);
 448             my $dst = $dst_plugin->path($tcfg, $target_volname, $target_storeid);
 449
 450             my $dirname = dirname($dst);
 451
 452             if ($tcfg->{shared}) { # we can do a local copy
 453
 454                 run_command(['/bin/mkdir', '-p', $dirname]);
 455
 456                 run_command(['/bin/cp', $src, $dst]);
 457
 458             } else {
 459
 460                 run_command(['/usr/bin/ssh', "root\@${target_host}",
 461                              '/bin/mkdir', '-p', $dirname]);
 462
 463                 # we use rsync with --sparse, so we can't use --inplace,
 464                 # so we remove file on the target if it already exists to
 465                 # save space
 466                 my ($size, $format) = PVE::Storage::Plugin::file_size_info($src);
 467                 if ($format && ($format eq 'raw') && $size) {
 468                     run_command(['/usr/bin/ssh', "root\@${target_host}",
 469                                  'rm', '-f', $dst],
 470                                 outfunc => sub {});
 471                 }
 472
 473                 my $cmd = ['/usr/bin/rsync', '--progress', '--sparse', '--whole-file',
 474                            $src, "root\@${target_host}:$dst"];
 475
 476                 my $percent = -1;
 477
 478                 run_command($cmd, outfunc => sub {
 479                     my $line = shift;
 480
 481                     if ($line =~ m/^\s*(\d+\s+(\d+)%\s.*)$/) {
 482                         if ($2 > $percent) {
 483                             $percent = $2;
 484                             print "rsync status: $1\n";
 485                             *STDOUT->flush();
 486                         }
 487                     } else {
 488                         print "$line\n";
 489                         *STDOUT->flush();
 490                     }
 491                 });
 492             }
 493         } else {
 494             die "$errstr - target type '$tcfg->{type}' not implemented\n";
 495         }
 496
 497     } elsif ($scfg->{type} eq 'zfspool') {
 498
 499         if ($tcfg->{type} eq 'zfspool') {
 500
 501             die "$errstr - pool on target has not same name as source!"
 502                 if $tcfg->{pool} ne $scfg->{pool};
 503
 504             my (undef, $volname) = parse_volname($cfg, $volid);
 505
 506             my $zfspath = "$scfg->{pool}\/$volname";
 507
 508             my $snap = "zfs snapshot $zfspath\@__migration__";
 509
 510             my $send = "zfs send -v $zfspath\@__migration__ \| ssh root\@$target_host zfs recv $zfspath";
 511
 512             my $destroy_target = "ssh root\@$target_host zfs destroy $zfspath\@__migration__";
 513             run_command($snap);
 514             eval{
 515                 run_command($send);
 516             };
 517             my $err;
 518             if ($err = $@){
 519                 run_command("zfs destroy $zfspath\@__migration__");
 520                 die $err;
 521             }
 522             run_command($destroy_target);
 523
 524         } else {
 525             die "$errstr - target type $tcfg->{type} is not valid\n";
 526         }
 527     } else {
 528         die "$errstr - source type '$scfg->{type}' not implemented\n";
 529     }
 530 }
 531
 532 sub vdisk_clone {
 533     my ($cfg, $volid, $vmid, $snap) = @_;
 534
 535     my ($storeid, $volname) = parse_volume_id($volid);
 536
 537     my $scfg = storage_config($cfg, $storeid);
 538
 539     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 540
 541     activate_storage($cfg, $storeid);
 542
 543     # lock shared storage
 544     return $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 545         my $volname = $plugin->clone_image($scfg, $storeid, $volname, $vmid, $snap);
 546         return "$storeid:$volname";
 547     });
 548 }
 549
 550 sub vdisk_create_base {
 551     my ($cfg, $volid) = @_;
 552
 553     my ($storeid, $volname) = parse_volume_id($volid);
 554
 555     my $scfg = storage_config($cfg, $storeid);
 556
 557     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 558
 559     activate_storage($cfg, $storeid);
 560
 561     # lock shared storage
 562     return $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 563         my $volname = $plugin->create_base($storeid, $scfg, $volname);
 564         return "$storeid:$volname";
 565     });
 566 }
 567
 568 sub vdisk_alloc {
 569     my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
 570
 571     die "no storage id specified\n" if !$storeid;
 572
 573     PVE::JSONSchema::parse_storage_id($storeid);
 574
 575     my $scfg = storage_config($cfg, $storeid);
 576
 577     die "no VMID specified\n" if !$vmid;
 578
 579     $vmid = parse_vmid($vmid);
 580
 581     my $defformat = PVE::Storage::Plugin::default_format($scfg);
 582
 583     $fmt = $defformat if !$fmt;
 584
 585     activate_storage($cfg, $storeid);
 586
 587     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 588
 589     # lock shared storage
 590     return $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 591         my $old_umask = umask(umask|0037);
 592         my $volname = eval { $plugin->alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size) };
 593         my $err = $@;
 594         umask $old_umask;
 595         die $err if $err;
 596         return "$storeid:$volname";
 597     });
 598 }
 599
 600 sub vdisk_free {
 601     my ($cfg, $volid) = @_;
 602
 603     my ($storeid, $volname) = parse_volume_id($volid);
 604
 605     my $scfg = storage_config($cfg, $storeid);
 606
 607     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 608
 609     activate_storage($cfg, $storeid);
 610
 611     my $cleanup_worker;
 612
 613     # lock shared storage
 614     $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 615
 616         my ($vtype, $name, $vmid, undef, undef, $isBase, $format) =
 617             $plugin->parse_volname($volname);
 618         if ($isBase) {
 619             my $vollist = $plugin->list_images($storeid, $scfg);
 620             foreach my $info (@$vollist) {
 621                 my (undef, $tmpvolname) = parse_volume_id($info->{volid});
 622                 my $basename = undef;
 623                 my $basevmid = undef;
 624
 625                 eval{
 626                     (undef, undef, undef, $basename, $basevmid) =
 627                         $plugin->parse_volname($tmpvolname);
 628                 };
 629
 630                 if ($basename && defined($basevmid) && $basevmid == $vmid && $basename eq $name) {
 631                     die "base volume '$volname' is still in use " .
 632                         "(use by '$tmpvolname')\n";
 633                 }
 634             }
 635         }
 636         $cleanup_worker = $plugin->free_image($storeid, $scfg, $volname, $isBase, $format);
 637     });
 638
 639     return if !$cleanup_worker;
 640
 641     my $rpcenv = PVE::RPCEnvironment::get();
 642     my $authuser = $rpcenv->get_user();
 643
 644     $rpcenv->fork_worker('imgdel', undef, $authuser, $cleanup_worker);
 645 }
 646
 647 #list iso or openvz template ($tt = <iso|vztmpl|backup>)
 648 sub template_list {
 649     my ($cfg, $storeid, $tt) = @_;
 650
 651     die "unknown template type '$tt'\n"
 652         if !($tt eq 'iso' || $tt eq 'vztmpl' || $tt eq 'backup');
 653
 654     my $ids = $cfg->{ids};
 655
 656     storage_check_enabled($cfg, $storeid) if ($storeid);
 657
 658     my $res = {};
 659
 660     # query the storage
 661
 662     foreach my $sid (keys %$ids) {
 663         next if $storeid && $storeid ne $sid;
 664
 665         my $scfg = $ids->{$sid};
 666         my $type = $scfg->{type};
 667
 668         next if !storage_check_enabled($cfg, $sid, undef, 1);
 669
 670         next if $tt eq 'iso' && !$scfg->{content}->{iso};
 671         next if $tt eq 'vztmpl' && !$scfg->{content}->{vztmpl};
 672         next if $tt eq 'backup' && !$scfg->{content}->{backup};
 673
 674         activate_storage($cfg, $sid);
 675
 676         if ($scfg->{path}) {
 677             my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 678
 679             my $path = $plugin->get_subdir($scfg, $tt);
 680
 681             foreach my $fn (<$path/*>) {
 682
 683                 my $info;
 684
 685                 if ($tt eq 'iso') {
 686                     next if $fn !~ m!/([^/]+\.[Ii][Ss][Oo])$!;
 687
 688                     $info = { volid => "$sid:iso/$1", format => 'iso' };
 689
 690                 } elsif ($tt eq 'vztmpl') {
 691                     next if $fn !~ m!/([^/]+\.tar\.([gx]z))$!;
 692
 693                     $info = { volid => "$sid:vztmpl/$1", format => "t$2" };
 694
 695                 } elsif ($tt eq 'backup') {
 696                     next if $fn !~ m!/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!;
 697
 698                     $info = { volid => "$sid:backup/$1", format => $2 };
 699                 }
 700
 701                 $info->{size} = -s $fn;
 702
 703                 push @{$res->{$sid}}, $info;
 704             }
 705
 706         }
 707
 708         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 709     }
 710
 711     return $res;
 712 }
 713
 714
 715 sub vdisk_list {
 716     my ($cfg, $storeid, $vmid, $vollist) = @_;
 717
 718     my $ids = $cfg->{ids};
 719
 720     storage_check_enabled($cfg, $storeid) if ($storeid);
 721
 722     my $res = {};
 723
 724     # prepare/activate/refresh all storages
 725
 726     my $storage_list = [];
 727     if ($vollist) {
 728         foreach my $volid (@$vollist) {
 729             my ($sid, undef) = parse_volume_id($volid);
 730             next if !defined($ids->{$sid});
 731             next if !storage_check_enabled($cfg, $sid, undef, 1);
 732             push @$storage_list, $sid;
 733         }
 734     } else {
 735         foreach my $sid (keys %$ids) {
 736             next if $storeid && $storeid ne $sid;
 737             next if !storage_check_enabled($cfg, $sid, undef, 1);
 738             push @$storage_list, $sid;
 739         }
 740     }
 741
 742     my $cache = {};
 743
 744     activate_storage_list($cfg, $storage_list, $cache);
 745
 746     foreach my $sid (keys %$ids) {
 747         next if $storeid && $storeid ne $sid;
 748         next if !storage_check_enabled($cfg, $sid, undef, 1);
 749
 750         my $scfg = $ids->{$sid};
 751         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 752         $res->{$sid} = $plugin->list_images($sid, $scfg, $vmid, $vollist, $cache);
 753         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 754     }
 755
 756     return $res;
 757 }
 758
 759 sub uevent_seqnum {
 760
 761     my $filename = "/sys/kernel/uevent_seqnum";
 762
 763     my $seqnum = 0;
 764     if (my $fh = IO::File->new($filename, "r")) {
 765         my $line = <$fh>;
 766         if ($line =~ m/^(\d+)$/) {
 767             $seqnum = int($1);
 768         }
 769         close ($fh);
 770     }
 771     return $seqnum;
 772 }
 773
 774 sub activate_storage {
 775     my ($cfg, $storeid, $cache) = @_;
 776
 777     $cache = {} if !$cache;
 778
 779     my $scfg = storage_check_enabled($cfg, $storeid);
 780
 781     return if $cache->{activated}->{$storeid};
 782
 783     $cache->{uevent_seqnum} = uevent_seqnum() if !$cache->{uevent_seqnum};
 784
 785     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 786
 787     if ($scfg->{base}) {
 788         my ($baseid, undef) = parse_volume_id ($scfg->{base});
 789         activate_storage($cfg, $baseid, $cache);
 790     }
 791
 792     if (!$plugin->check_connection($storeid, $scfg)) {
 793         die "storage '$storeid' is not online\n";
 794     }
 795
 796     $plugin->activate_storage($storeid, $scfg, $cache);
 797
 798     my $newseq = uevent_seqnum ();
 799
 800     # only call udevsettle if there are events
 801     if ($newseq > $cache->{uevent_seqnum}) {
 802         my $timeout = 30;
 803         system ("$UDEVADM settle --timeout=$timeout"); # ignore errors
 804         $cache->{uevent_seqnum} = $newseq;
 805     }
 806
 807     $cache->{activated}->{$storeid} = 1;
 808 }
 809
 810 sub activate_storage_list {
 811     my ($cfg, $storeid_list, $cache) = @_;
 812
 813     $cache = {} if !$cache;
 814
 815     foreach my $storeid (@$storeid_list) {
 816         activate_storage($cfg, $storeid, $cache);
 817     }
 818 }
 819
 820 sub deactivate_storage {
 821     my ($cfg, $storeid) = @_;
 822
 823     my $scfg = storage_config ($cfg, $storeid);
 824     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 825
 826     my $cache = {};
 827     $plugin->deactivate_storage($storeid, $scfg, $cache);
 828 }
 829
 830 sub activate_volumes {
 831     my ($cfg, $vollist, $exclusive) = @_;
 832
 833     return if !($vollist && scalar(@$vollist));
 834
 835     my $storagehash = {};
 836     foreach my $volid (@$vollist) {
 837         my ($storeid, undef) = parse_volume_id($volid);
 838         $storagehash->{$storeid} = 1;
 839     }
 840
 841     my $cache = {};
 842
 843     activate_storage_list($cfg, [keys %$storagehash], $cache);
 844
 845     foreach my $volid (@$vollist) {
 846         my ($storeid, $volname) = parse_volume_id($volid);
 847         my $scfg = storage_config($cfg, $storeid);
 848         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 849         $plugin->activate_volume($storeid, $scfg, $volname, $exclusive, $cache);
 850     }
 851 }
 852
 853 sub deactivate_volumes {
 854     my ($cfg, $vollist) = @_;
 855
 856     return if !($vollist && scalar(@$vollist));
 857
 858     my $cache = {};
 859
 860     my @errlist = ();
 861     foreach my $volid (@$vollist) {
 862         my ($storeid, $volname) = parse_volume_id($volid);
 863
 864         my $scfg = storage_config($cfg, $storeid);
 865         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 866
 867         eval {
 868             $plugin->deactivate_volume($storeid, $scfg, $volname, $cache);
 869         };
 870         if (my $err = $@) {
 871             warn $err;
 872             push @errlist, $volid;
 873         }
 874     }
 875
 876     die "volume deativation failed: " . join(' ', @errlist)
 877         if scalar(@errlist);
 878 }
 879
 880 sub storage_info {
 881     my ($cfg, $content) = @_;
 882
 883     my $ids = $cfg->{ids};
 884
 885     my $info = {};
 886
 887     my @ctypes = PVE::Tools::split_list($content);
 888
 889     my $slist = [];
 890     foreach my $storeid (keys %$ids) {
 891
 892         next if !storage_check_enabled($cfg, $storeid, undef, 1);
 893
 894         if (defined($content)) {
 895             my $want_ctype = 0;
 896             foreach my $ctype (@ctypes) {
 897                 if ($ids->{$storeid}->{content}->{$ctype}) {
 898                     $want_ctype = 1;
 899                     last;
 900                 }
 901             }
 902             next if !$want_ctype;
 903         }
 904
 905         my $type = $ids->{$storeid}->{type};
 906
 907         $info->{$storeid} = {
 908             type => $type,
 909             total => 0,
 910             avail => 0,
 911             used => 0,
 912             shared => $ids->{$storeid}->{shared} ? 1 : 0,
 913             content => PVE::Storage::Plugin::content_hash_to_string($ids->{$storeid}->{content}),
 914             active => 0,
 915         };
 916
 917         push @$slist, $storeid;
 918     }
 919
 920     my $cache = {};
 921
 922     foreach my $storeid (keys %$ids) {
 923         my $scfg = $ids->{$storeid};
 924         next if !$info->{$storeid};
 925
 926         eval { activate_storage($cfg, $storeid, $cache); };
 927         if (my $err = $@) {
 928             warn $err;
 929             next;
 930         }
 931
 932         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 933         my ($total, $avail, $used, $active);
 934         eval { ($total, $avail, $used, $active) = $plugin->status($storeid, $scfg, $cache); };
 935         warn $@ if $@;
 936         next if !$active;
 937         $info->{$storeid}->{total} = $total;
 938         $info->{$storeid}->{avail} = $avail;
 939         $info->{$storeid}->{used} = $used;
 940         $info->{$storeid}->{active} = $active;
 941     }
 942
 943     return $info;
 944 }
 945
 946 sub resolv_server {
 947     my ($server) = @_;
 948
 949     my ($packed_ip, $family);
 950     eval {
 951         my @res = PVE::Tools::getaddrinfo_all($server);
 952         $family = $res[0]->{family};
 953         $packed_ip = (PVE::Tools::unpack_sockaddr_in46($res[0]->{addr}))[2];
 954     };
 955     if (defined $packed_ip) {
 956         return Socket::inet_ntop($family, $packed_ip);
 957     }
 958     return undef;
 959 }
 960
 961 sub scan_nfs {
 962     my ($server_in) = @_;
 963
 964     my $server;
 965     if (!($server = resolv_server ($server_in))) {
 966         die "unable to resolve address for server '${server_in}'\n";
 967     }
 968
 969     my $cmd = ['/sbin/showmount',  '--no-headers', '--exports', $server];
 970
 971     my $res = {};
 972     run_command($cmd, outfunc => sub {
 973         my $line = shift;
 974
 975         # note: howto handle white spaces in export path??
 976         if ($line =~ m!^(/\S+)\s+(.+)$!) {
 977             $res->{$1} = $2;
 978         }
 979     });
 980
 981     return $res;
 982 }
 983
 984 sub scan_zfs {
 985
 986     my $cmd = ['zpool',  'list', '-H', '-o', 'name,size,free'];
 987
 988     my $res = [];
 989     run_command($cmd, outfunc => sub {
 990         my $line = shift;
 991
 992         if ($line =~m/^(\S+)\s+(\S+)\s+(\S+)$/) {
 993             my ($pool, $size_str, $free_str) = ($1, $2, $3);
 994             my $size = PVE::Storage::ZFSPoolPlugin::zfs_parse_size($size_str);
 995             my $free = PVE::Storage::ZFSPoolPlugin::zfs_parse_size($free_str);
 996             push @$res, { pool => $pool, size => $size, free => $free };
 997         }
 998     });
 999
1000     return $res;
1001 }
1002
1003 sub resolv_portal {
1004     my ($portal, $noerr) = @_;
1005
1006     if ($portal =~ m/^([^:]+)(:(\d+))?$/) {
1007         my $server = $1;
1008         my $port = $3;
1009
1010         if (my $ip = resolv_server($server)) {
1011             $server = $ip;
1012             return $port ? "$server:$port" : $server;
1013         }
1014     }
1015     return undef if $noerr;
1016
1017     raise_param_exc({ portal => "unable to resolve portal address '$portal'" });
1018 }
1019
1020 # idea is from usbutils package (/usr/bin/usb-devices) script
1021 sub __scan_usb_device {
1022     my ($res, $devpath, $parent, $level) = @_;
1023
1024     return if ! -d $devpath;
1025     return if $level && $devpath !~ m/^.*[-.](\d+)$/;
1026     my $port = $level ? int($1 - 1) : 0;
1027
1028     my $busnum = int(file_read_firstline("$devpath/busnum"));
1029     my $devnum = int(file_read_firstline("$devpath/devnum"));
1030
1031     my $d = {
1032         port => $port,
1033         level => $level,
1034         busnum => $busnum,
1035         devnum => $devnum,
1036         speed => file_read_firstline("$devpath/speed"),
1037         class => hex(file_read_firstline("$devpath/bDeviceClass")),
1038         vendid => file_read_firstline("$devpath/idVendor"),
1039         prodid => file_read_firstline("$devpath/idProduct"),
1040     };
1041
1042     if ($level) {
1043         my $usbpath = $devpath;
1044         $usbpath =~ s|^.*/\d+\-||;
1045         $d->{usbpath} = $usbpath;
1046     }
1047
1048     my $product = file_read_firstline("$devpath/product");
1049     $d->{product} = $product if $product;
1050
1051     my $manu = file_read_firstline("$devpath/manufacturer");
1052     $d->{manufacturer} = $manu if $manu;
1053
1054     my $serial => file_read_firstline("$devpath/serial");
1055     $d->{serial} = $serial if $serial;
1056
1057     push @$res, $d;
1058
1059     foreach my $subdev (<$devpath/$busnum-*>) {
1060         next if $subdev !~ m|/$busnum-[0-9]+(\.[0-9]+)*$|;
1061         __scan_usb_device($res, $subdev, $devnum, $level + 1);
1062     }
1063
1064 };
1065
1066 sub scan_usb {
1067
1068     my $devlist = [];
1069
1070     foreach my $device (</sys/bus/usb/devices/usb*>) {
1071         __scan_usb_device($devlist, $device, 0, 0);
1072     }
1073
1074     return $devlist;
1075 }
1076
1077 sub scan_iscsi {
1078     my ($portal_in) = @_;
1079
1080     my $portal;
1081     if (!($portal = resolv_portal($portal_in))) {
1082         die "unable to parse/resolve portal address '${portal_in}'\n";
1083     }
1084
1085     return PVE::Storage::ISCSIPlugin::iscsi_discovery($portal);
1086 }
1087
1088 sub storage_default_format {
1089     my ($cfg, $storeid) = @_;
1090
1091     my $scfg = storage_config ($cfg, $storeid);
1092
1093     return PVE::Storage::Plugin::default_format($scfg);
1094 }
1095
1096 sub vgroup_is_used {
1097     my ($cfg, $vgname) = @_;
1098
1099     foreach my $storeid (keys %{$cfg->{ids}}) {
1100         my $scfg = storage_config($cfg, $storeid);
1101         if ($scfg->{type} eq 'lvm' && $scfg->{vgname} eq $vgname) {
1102             return 1;
1103         }
1104     }
1105
1106     return undef;
1107 }
1108
1109 sub target_is_used {
1110     my ($cfg, $target) = @_;
1111
1112     foreach my $storeid (keys %{$cfg->{ids}}) {
1113         my $scfg = storage_config($cfg, $storeid);
1114         if ($scfg->{type} eq 'iscsi' && $scfg->{target} eq $target) {
1115             return 1;
1116         }
1117     }
1118
1119     return undef;
1120 }
1121
1122 sub volume_is_used {
1123     my ($cfg, $volid) = @_;
1124
1125     foreach my $storeid (keys %{$cfg->{ids}}) {
1126         my $scfg = storage_config($cfg, $storeid);
1127         if ($scfg->{base} && $scfg->{base} eq $volid) {
1128             return 1;
1129         }
1130     }
1131
1132     return undef;
1133 }
1134
1135 sub storage_is_used {
1136     my ($cfg, $storeid) = @_;
1137
1138     foreach my $sid (keys %{$cfg->{ids}}) {
1139         my $scfg = storage_config($cfg, $sid);
1140         next if !$scfg->{base};
1141         my ($st) = parse_volume_id($scfg->{base});
1142         return 1 if $st && $st eq $storeid;
1143     }
1144
1145     return undef;
1146 }
1147
1148 sub foreach_volid {
1149     my ($list, $func) = @_;
1150
1151     return if !$list;
1152
1153     foreach my $sid (keys %$list) {
1154        foreach my $info (@{$list->{$sid}}) {
1155            my $volid = $info->{volid};
1156            my ($sid1, $volname) = parse_volume_id($volid, 1);
1157            if ($sid1 && $sid1 eq $sid) {
1158                &$func ($volid, $sid, $info);
1159            } else {
1160                warn "detected strange volid '$volid' in volume list for '$sid'\n";
1161            }
1162        }
1163     }
1164 }
1165
1166 1;