PVE/Storage.pm

   1 package PVE::Storage;
   2
   3 use strict;
   4 use POSIX;
   5 use IO::Select;
   6 use IO::File;
   7 use File::Basename;
   8 use File::Path;
   9 use Cwd 'abs_path';
  10 use Socket;
  11
  12 use PVE::Tools qw(run_command file_read_firstline);
  13 use PVE::Cluster qw(cfs_read_file cfs_lock_file);
  14 use PVE::Exception qw(raise_param_exc);
  15 use PVE::JSONSchema;
  16 use PVE::INotify;
  17 use PVE::RPCEnvironment;
  18
  19 use PVE::Storage::Plugin;
  20 use PVE::Storage::DirPlugin;
  21 use PVE::Storage::LVMPlugin;
  22 use PVE::Storage::NFSPlugin;
  23 use PVE::Storage::ISCSIPlugin;
  24 use PVE::Storage::RBDPlugin;
  25 use PVE::Storage::SheepdogPlugin;
  26 use PVE::Storage::ISCSIDirectPlugin;
  27 use PVE::Storage::NexentaPlugin;
  28
  29 # load and initialize all plugins
  30 PVE::Storage::DirPlugin->register();
  31 PVE::Storage::LVMPlugin->register();
  32 PVE::Storage::NFSPlugin->register();
  33 PVE::Storage::ISCSIPlugin->register();
  34 PVE::Storage::RBDPlugin->register();
  35 PVE::Storage::SheepdogPlugin->register();
  36 PVE::Storage::ISCSIDirectPlugin->register();
  37 PVE::Storage::NexentaPlugin->register();
  38 PVE::Storage::Plugin->init();
  39
  40 my $UDEVADM = '/sbin/udevadm';
  41
  42 #  PVE::Storage utility functions
  43
  44 sub config {
  45     return cfs_read_file("storage.cfg");
  46 }
  47
  48 sub lock_storage_config {
  49     my ($code, $errmsg) = @_;
  50
  51     cfs_lock_file("storage.cfg", undef, $code);
  52     my $err = $@;
  53     if ($err) {
  54         $errmsg ? die "$errmsg: $err" : die $err;
  55     }
  56 }
  57
  58 sub storage_config {
  59     my ($cfg, $storeid, $noerr) = @_;
  60
  61     die "no storage id specified\n" if !$storeid;
  62
  63     my $scfg = $cfg->{ids}->{$storeid};
  64
  65     die "storage '$storeid' does not exists\n" if (!$noerr && !$scfg);
  66
  67     return $scfg;
  68 }
  69
  70 sub storage_check_node {
  71     my ($cfg, $storeid, $node, $noerr) = @_;
  72
  73     my $scfg = storage_config($cfg, $storeid);
  74
  75     if ($scfg->{nodes}) {
  76         $node = PVE::INotify::nodename() if !$node || ($node eq 'localhost');
  77         if (!$scfg->{nodes}->{$node}) {
  78             die "storage '$storeid' is not available on node '$node'\n" if !$noerr;
  79             return undef;
  80         }
  81     }
  82
  83     return $scfg;
  84 }
  85
  86 sub storage_check_enabled {
  87     my ($cfg, $storeid, $node, $noerr) = @_;
  88
  89     my $scfg = storage_config($cfg, $storeid);
  90
  91     if ($scfg->{disable}) {
  92         die "storage '$storeid' is disabled\n" if !$noerr;
  93         return undef;
  94     }
  95
  96     return storage_check_node($cfg, $storeid, $node, $noerr);
  97 }
  98
  99 sub storage_ids {
 100     my ($cfg) = @_;
 101
 102     return keys %{$cfg->{ids}};
 103 }
 104
 105 sub file_size_info {
 106     my ($filename, $timeout) = @_;
 107
 108     return PVE::Storage::Plugin::file_size_info($filename, $timeout);
 109 }
 110
 111 sub volume_size_info {
 112     my ($cfg, $volid, $timeout) = @_;
 113
 114     my ($storeid, $volname) = parse_volume_id($volid, 1);
 115     if ($storeid) {
 116         my $scfg = storage_config($cfg, $storeid);
 117         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 118         return $plugin->volume_size_info($scfg, $storeid, $volname, $timeout);
 119     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 120         return file_size_info($volid, $timeout);
 121     } else {
 122         return 0;
 123     }
 124 }
 125
 126 sub volume_resize {
 127     my ($cfg, $volid, $size, $running) = @_;
 128
 129     my ($storeid, $volname) = parse_volume_id($volid, 1);
 130     if ($storeid) {
 131         my $scfg = storage_config($cfg, $storeid);
 132         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 133         return $plugin->volume_resize($scfg, $storeid, $volname, $size, $running);
 134     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 135         die "resize device is not possible";
 136     } else {
 137         die "can't resize";
 138     }
 139 }
 140
 141 sub volume_snapshot {
 142     my ($cfg, $volid, $snap, $running) = @_;
 143
 144     my ($storeid, $volname) = parse_volume_id($volid, 1);
 145     if ($storeid) {
 146         my $scfg = storage_config($cfg, $storeid);
 147         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 148         return $plugin->volume_snapshot($scfg, $storeid, $volname, $snap, $running);
 149     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 150         die "snapshot device is not possible";
 151     } else {
 152         die "can't snapshot";
 153     }
 154 }
 155
 156 sub volume_snapshot_rollback {
 157     my ($cfg, $volid, $snap) = @_;
 158
 159     my ($storeid, $volname) = parse_volume_id($volid, 1);
 160     if ($storeid) {
 161         my $scfg = storage_config($cfg, $storeid);
 162         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 163         return $plugin->volume_snapshot_rollback($scfg, $storeid, $volname, $snap);
 164     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 165         die "snapshot rollback device is not possible";
 166     } else {
 167         die "can't snapshot";
 168     }
 169 }
 170
 171 sub volume_snapshot_delete {
 172     my ($cfg, $volid, $snap, $running) = @_;
 173
 174     my ($storeid, $volname) = parse_volume_id($volid, 1);
 175     if ($storeid) {
 176         my $scfg = storage_config($cfg, $storeid);
 177         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 178         return $plugin->volume_snapshot_delete($scfg, $storeid, $volname, $snap, $running);
 179     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 180         die "snapshot delete device is not possible";
 181     } else {
 182         die "can't delete snapshot";
 183     }
 184 }
 185
 186 sub get_image_dir {
 187     my ($cfg, $storeid, $vmid) = @_;
 188
 189     my $scfg = storage_config($cfg, $storeid);
 190     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 191
 192     my $path = $plugin->get_subdir($scfg, 'images');
 193
 194     return $vmid ? "$path/$vmid" : $path;
 195 }
 196
 197 sub get_private_dir {
 198     my ($cfg, $storeid, $vmid) = @_;
 199
 200     my $scfg = storage_config($cfg, $storeid);
 201     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 202
 203     my $path = $plugin->get_subdir($scfg, 'rootdir');
 204
 205     return $vmid ? "$path/$vmid" : $path;
 206 }
 207
 208 sub get_iso_dir {
 209     my ($cfg, $storeid) = @_;
 210
 211     my $scfg = storage_config($cfg, $storeid);
 212     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 213
 214     return $plugin->get_subdir($scfg, 'iso');
 215 }
 216
 217 sub get_vztmpl_dir {
 218     my ($cfg, $storeid) = @_;
 219
 220     my $scfg = storage_config($cfg, $storeid);
 221     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 222
 223     return $plugin->get_subdir($scfg, 'vztmpl');
 224 }
 225
 226 sub get_backup_dir {
 227     my ($cfg, $storeid) = @_;
 228
 229     my $scfg = storage_config($cfg, $storeid);
 230     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 231
 232     return $plugin->get_subdir($scfg, 'backup');
 233 }
 234
 235 # library implementation
 236
 237 sub parse_vmid {
 238     my $vmid = shift;
 239
 240     die "VMID '$vmid' contains illegal characters\n" if $vmid !~ m/^\d+$/;
 241
 242     return int($vmid);
 243 }
 244
 245 PVE::JSONSchema::register_format('pve-volume-id', \&parse_volume_id);
 246 sub parse_volume_id {
 247     my ($volid, $noerr) = @_;
 248
 249     if ($volid =~ m/^([a-z][a-z0-9\-\_\.]*[a-z0-9]):(.+)$/i) {
 250         return wantarray ? ($1, $2) : $1;
 251     }
 252     return undef if $noerr;
 253     die "unable to parse volume ID '$volid'\n";
 254 }
 255
 256 # try to map a filesystem path to a volume identifier
 257 sub path_to_volume_id {
 258     my ($cfg, $path) = @_;
 259
 260     my $ids = $cfg->{ids};
 261
 262     my ($sid, $volname) = parse_volume_id($path, 1);
 263     if ($sid) {
 264         if (my $scfg = $ids->{$sid}) {
 265             if (my $path = $scfg->{path}) {
 266                 my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 267                 my ($vtype, $name, $vmid) = $plugin->parse_volname($volname);
 268                 return ($vtype, $path);
 269             }
 270         }
 271         return ('');
 272     }
 273
 274     # Note: abs_path() return undef if $path doesn not exist
 275     # for example when nfs storage is not mounted
 276     $path = abs_path($path) || $path;
 277
 278     foreach my $sid (keys %$ids) {
 279         my $scfg = $ids->{$sid};
 280         next if !$scfg->{path};
 281         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 282         my $imagedir = $plugin->get_subdir($scfg, 'images');
 283         my $isodir = $plugin->get_subdir($scfg, 'iso');
 284         my $tmpldir = $plugin->get_subdir($scfg, 'vztmpl');
 285         my $backupdir = $plugin->get_subdir($scfg, 'backup');
 286         my $privatedir = $plugin->get_subdir($scfg, 'rootdir');
 287
 288         if ($path =~ m!^$imagedir/(\d+)/([^/\s]+)$!) {
 289             my $vmid = $1;
 290             my $name = $2;
 291             return ('images', "$sid:$vmid/$name");
 292         } elsif ($path =~ m!^$isodir/([^/]+\.[Ii][Ss][Oo])$!) {
 293             my $name = $1;
 294             return ('iso', "$sid:iso/$name");
 295         } elsif ($path =~ m!^$tmpldir/([^/]+\.tar\.gz)$!) {
 296             my $name = $1;
 297             return ('vztmpl', "$sid:vztmpl/$name");
 298         } elsif ($path =~ m!^$privatedir/(\d+)$!) {
 299             my $vmid = $1;
 300             return ('rootdir', "$sid:rootdir/$vmid");
 301         } elsif ($path =~ m!^$backupdir/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz))$!) {
 302             my $name = $1;
 303             return ('iso', "$sid:backup/$name");
 304         }
 305     }
 306
 307     # can't map path to volume id
 308     return ('');
 309 }
 310
 311 sub path {
 312     my ($cfg, $volid) = @_;
 313
 314     my ($storeid, $volname) = parse_volume_id($volid);
 315
 316     my $scfg = storage_config($cfg, $storeid);
 317
 318     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 319     my ($path, $owner, $vtype) = $plugin->path($scfg, $volname, $storeid);
 320     return wantarray ? ($path, $owner, $vtype) : $path;
 321 }
 322
 323 sub storage_migrate {
 324     my ($cfg, $volid, $target_host, $target_storeid, $target_volname) = @_;
 325
 326     my ($storeid, $volname) = parse_volume_id($volid);
 327     $target_volname = $volname if !$target_volname;
 328
 329     my $scfg = storage_config($cfg, $storeid);
 330
 331     # no need to migrate shared content
 332     return if $storeid eq $target_storeid && $scfg->{shared};
 333
 334     my $tcfg = storage_config($cfg, $target_storeid);
 335
 336     my $target_volid = "${target_storeid}:${target_volname}";
 337
 338     my $errstr = "unable to migrate '$volid' to '${target_volid}' on host '$target_host'";
 339
 340     my $sshoptions = "-o 'BatchMode=yes'";
 341     my $ssh = "/usr/bin/ssh $sshoptions";
 342
 343     local $ENV{RSYNC_RSH} = $ssh;
 344
 345     # only implemented for file system based storage
 346     if ($scfg->{path}) {
 347         if ($tcfg->{path}) {
 348
 349             my $src_plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 350             my $dst_plugin = PVE::Storage::Plugin->lookup($tcfg->{type});
 351             my $src = $src_plugin->path($scfg, $volname, $storeid);
 352             my $dst = $dst_plugin->path($tcfg, $target_volname, $target_storeid);
 353
 354             my $dirname = dirname($dst);
 355
 356             if ($tcfg->{shared}) { # we can do a local copy
 357
 358                 run_command(['/bin/mkdir', '-p', $dirname]);
 359
 360                 run_command(['/bin/cp', $src, $dst]);
 361
 362             } else {
 363
 364                 run_command(['/usr/bin/ssh', "root\@${target_host}",
 365                              '/bin/mkdir', '-p', $dirname]);
 366
 367                 # we use rsync with --sparse, so we can't use --inplace,
 368                 # so we remove file on the target if it already exists to
 369                 # save space
 370                 my ($size, $format) = PVE::Storage::Plugin::file_size_info($src);
 371                 if ($format && ($format eq 'raw') && $size) {
 372                     run_command(['/usr/bin/ssh', "root\@${target_host}",
 373                                  'rm', '-f', $dst],
 374                                 outfunc => sub {});
 375                 }
 376
 377                 my $cmd = ['/usr/bin/rsync', '--progress', '--sparse', '--whole-file',
 378                            $src, "root\@${target_host}:$dst"];
 379
 380                 my $percent = -1;
 381
 382                 run_command($cmd, outfunc => sub {
 383                     my $line = shift;
 384
 385                     if ($line =~ m/^\s*(\d+\s+(\d+)%\s.*)$/) {
 386                         if ($2 > $percent) {
 387                             $percent = $2;
 388                             print "rsync status: $1\n";
 389                             *STDOUT->flush();
 390                         }
 391                     } else {
 392                         print "$line\n";
 393                         *STDOUT->flush();
 394                     }
 395                 });
 396             }
 397         } else {
 398             die "$errstr - target type '$tcfg->{type}' not implemented\n";
 399         }
 400     } else {
 401         die "$errstr - source type '$scfg->{type}' not implemented\n";
 402     }
 403 }
 404
 405 sub vdisk_alloc {
 406     my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
 407
 408     die "no storage id specified\n" if !$storeid;
 409
 410     PVE::JSONSchema::parse_storage_id($storeid);
 411
 412     my $scfg = storage_config($cfg, $storeid);
 413
 414     die "no VMID specified\n" if !$vmid;
 415
 416     $vmid = parse_vmid($vmid);
 417
 418     my $defformat = PVE::Storage::Plugin::default_format($scfg);
 419
 420     $fmt = $defformat if !$fmt;
 421
 422     activate_storage($cfg, $storeid);
 423
 424     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 425
 426     # lock shared storage
 427     return $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 428         my $volname = $plugin->alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size);
 429         return "$storeid:$volname";
 430     });
 431 }
 432
 433 sub vdisk_free {
 434     my ($cfg, $volid) = @_;
 435
 436     my ($storeid, $volname) = parse_volume_id($volid);
 437
 438     my $scfg = storage_config($cfg, $storeid);
 439
 440     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 441
 442     activate_storage($cfg, $storeid);
 443
 444     my $cleanup_worker;
 445
 446     # lock shared storage
 447     $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 448         my $cleanup_worker = $plugin->free_image($storeid, $scfg, $volname);
 449     });
 450
 451     return if !$cleanup_worker;
 452
 453     my $rpcenv = PVE::RPCEnvironment::get();
 454     my $authuser = $rpcenv->get_user();
 455
 456     $rpcenv->fork_worker('imgdel', undef, $authuser, $cleanup_worker);
 457 }
 458
 459 #list iso or openvz template ($tt = <iso|vztmpl|backup>)
 460 sub template_list {
 461     my ($cfg, $storeid, $tt) = @_;
 462
 463     die "unknown template type '$tt'\n"
 464         if !($tt eq 'iso' || $tt eq 'vztmpl' || $tt eq 'backup');
 465
 466     my $ids = $cfg->{ids};
 467
 468     storage_check_enabled($cfg, $storeid) if ($storeid);
 469
 470     my $res = {};
 471
 472     # query the storage
 473
 474     foreach my $sid (keys %$ids) {
 475         next if $storeid && $storeid ne $sid;
 476
 477         my $scfg = $ids->{$sid};
 478         my $type = $scfg->{type};
 479
 480         next if !storage_check_enabled($cfg, $sid, undef, 1);
 481
 482         next if $tt eq 'iso' && !$scfg->{content}->{iso};
 483         next if $tt eq 'vztmpl' && !$scfg->{content}->{vztmpl};
 484         next if $tt eq 'backup' && !$scfg->{content}->{backup};
 485
 486         activate_storage($cfg, $sid);
 487
 488         if ($scfg->{path}) {
 489             my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 490
 491             my $path = $plugin->get_subdir($scfg, $tt);
 492
 493             foreach my $fn (<$path/*>) {
 494
 495                 my $info;
 496
 497                 if ($tt eq 'iso') {
 498                     next if $fn !~ m!/([^/]+\.[Ii][Ss][Oo])$!;
 499
 500                     $info = { volid => "$sid:iso/$1", format => 'iso' };
 501
 502                 } elsif ($tt eq 'vztmpl') {
 503                     next if $fn !~ m!/([^/]+\.tar\.gz)$!;
 504
 505                     $info = { volid => "$sid:vztmpl/$1", format => 'tgz' };
 506
 507                 } elsif ($tt eq 'backup') {
 508                     next if $fn !~ m!/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz))$!;
 509
 510                     $info = { volid => "$sid:backup/$1", format => $2 };
 511                 }
 512
 513                 $info->{size} = -s $fn;
 514
 515                 push @{$res->{$sid}}, $info;
 516             }
 517
 518         }
 519
 520         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 521     }
 522
 523     return $res;
 524 }
 525
 526
 527 sub vdisk_list {
 528     my ($cfg, $storeid, $vmid, $vollist) = @_;
 529
 530     my $ids = $cfg->{ids};
 531
 532     storage_check_enabled($cfg, $storeid) if ($storeid);
 533
 534     my $res = {};
 535
 536     # prepare/activate/refresh all storages
 537
 538     my $storage_list = [];
 539     if ($vollist) {
 540         foreach my $volid (@$vollist) {
 541             my ($sid, undef) = parse_volume_id($volid);
 542             next if !defined($ids->{$sid});
 543             next if !storage_check_enabled($cfg, $sid, undef, 1);
 544             push @$storage_list, $sid;
 545         }
 546     } else {
 547         foreach my $sid (keys %$ids) {
 548             next if $storeid && $storeid ne $sid;
 549             next if !storage_check_enabled($cfg, $sid, undef, 1);
 550             push @$storage_list, $sid;
 551         }
 552     }
 553
 554     my $cache = {};
 555
 556     activate_storage_list($cfg, $storage_list, $cache);
 557
 558     foreach my $sid (keys %$ids) {
 559         next if $storeid && $storeid ne $sid;
 560         next if !storage_check_enabled($cfg, $sid, undef, 1);
 561
 562         my $scfg = $ids->{$sid};
 563         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 564         $res->{$sid} = $plugin->list_images($sid, $scfg, $vmid, $vollist, $cache);
 565         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 566     }
 567
 568     return $res;
 569 }
 570
 571 sub uevent_seqnum {
 572
 573     my $filename = "/sys/kernel/uevent_seqnum";
 574
 575     my $seqnum = 0;
 576     if (my $fh = IO::File->new($filename, "r")) {
 577         my $line = <$fh>;
 578         if ($line =~ m/^(\d+)$/) {
 579             $seqnum = int($1);
 580         }
 581         close ($fh);
 582     }
 583     return $seqnum;
 584 }
 585
 586 sub activate_storage {
 587     my ($cfg, $storeid, $cache) = @_;
 588
 589     $cache = {} if !$cache;
 590
 591     my $scfg = storage_check_enabled($cfg, $storeid);
 592
 593     return if $cache->{activated}->{$storeid};
 594
 595     $cache->{uevent_seqnum} = uevent_seqnum() if !$cache->{uevent_seqnum};
 596
 597     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 598
 599     if ($scfg->{base}) {
 600         my ($baseid, undef) = parse_volume_id ($scfg->{base});
 601         activate_storage($cfg, $baseid, $cache);
 602     }
 603
 604     if (!$plugin->check_connection($storeid, $scfg)) {
 605         die "storage '$storeid' is not online\n";
 606     }
 607
 608     $plugin->activate_storage($storeid, $scfg, $cache);
 609
 610     my $newseq = uevent_seqnum ();
 611
 612     # only call udevsettle if there are events
 613     if ($newseq > $cache->{uevent_seqnum}) {
 614         my $timeout = 30;
 615         system ("$UDEVADM settle --timeout=$timeout"); # ignore errors
 616         $cache->{uevent_seqnum} = $newseq;
 617     }
 618
 619     $cache->{activated}->{$storeid} = 1;
 620 }
 621
 622 sub activate_storage_list {
 623     my ($cfg, $storeid_list, $cache) = @_;
 624
 625     $cache = {} if !$cache;
 626
 627     foreach my $storeid (@$storeid_list) {
 628         activate_storage($cfg, $storeid, $cache);
 629     }
 630 }
 631
 632 sub deactivate_storage {
 633     my ($cfg, $storeid) = @_;
 634
 635     my $scfg = storage_config ($cfg, $storeid);
 636     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 637
 638     my $cache = {};
 639     $plugin->deactivate_storage($storeid, $scfg, $cache);
 640 }
 641
 642 sub activate_volumes {
 643     my ($cfg, $vollist, $exclusive) = @_;
 644
 645     return if !($vollist && scalar(@$vollist));
 646
 647     my $storagehash = {};
 648     foreach my $volid (@$vollist) {
 649         my ($storeid, undef) = parse_volume_id($volid);
 650         $storagehash->{$storeid} = 1;
 651     }
 652
 653     my $cache = {};
 654
 655     activate_storage_list($cfg, [keys %$storagehash], $cache);
 656
 657     foreach my $volid (@$vollist) {
 658         my ($storeid, $volname) = parse_volume_id($volid);
 659         my $scfg = storage_config($cfg, $storeid);
 660         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 661         $plugin->activate_volume($storeid, $scfg, $volname, $exclusive, $cache);
 662     }
 663 }
 664
 665 sub deactivate_volumes {
 666     my ($cfg, $vollist) = @_;
 667
 668     return if !($vollist && scalar(@$vollist));
 669
 670     my $cache = {};
 671
 672     my @errlist = ();
 673     foreach my $volid (@$vollist) {
 674         my ($storeid, $volname) = parse_volume_id($volid);
 675
 676         my $scfg = storage_config($cfg, $storeid);
 677         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 678
 679         eval {
 680             $plugin->deactivate_volume($storeid, $scfg, $volname, $cache);
 681         };
 682         if (my $err = $@) {
 683             warn $err;
 684             push @errlist, $volid;
 685         }
 686     }
 687
 688     die "volume deativation failed: " . join(' ', @errlist)
 689         if scalar(@errlist);
 690 }
 691
 692 sub storage_info {
 693     my ($cfg, $content) = @_;
 694
 695     my $ids = $cfg->{ids};
 696
 697     my $info = {};
 698
 699     my $slist = [];
 700     foreach my $storeid (keys %$ids) {
 701
 702         next if $content && !$ids->{$storeid}->{content}->{$content};
 703
 704         next if !storage_check_enabled($cfg, $storeid, undef, 1);
 705
 706         my $type = $ids->{$storeid}->{type};
 707
 708         $info->{$storeid} = {
 709             type => $type,
 710             total => 0,
 711             avail => 0,
 712             used => 0,
 713             shared => $ids->{$storeid}->{shared} ? 1 : 0,
 714             content => PVE::Storage::Plugin::content_hash_to_string($ids->{$storeid}->{content}),
 715             active => 0,
 716         };
 717
 718         push @$slist, $storeid;
 719     }
 720
 721     my $cache = {};
 722
 723     foreach my $storeid (keys %$ids) {
 724         my $scfg = $ids->{$storeid};
 725         next if !$info->{$storeid};
 726
 727         eval { activate_storage($cfg, $storeid, $cache); };
 728         if (my $err = $@) {
 729             warn $err;
 730             next;
 731         }
 732
 733         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 734         my ($total, $avail, $used, $active);
 735         eval { ($total, $avail, $used, $active) = $plugin->status($storeid, $scfg, $cache); };
 736         warn $@ if $@;
 737         next if !$active;
 738         $info->{$storeid}->{total} = $total;
 739         $info->{$storeid}->{avail} = $avail;
 740         $info->{$storeid}->{used} = $used;
 741         $info->{$storeid}->{active} = $active;
 742     }
 743
 744     return $info;
 745 }
 746
 747 sub resolv_server {
 748     my ($server) = @_;
 749
 750     my $packed_ip = gethostbyname($server);
 751     if (defined $packed_ip) {
 752         return inet_ntoa($packed_ip);
 753     }
 754     return undef;
 755 }
 756
 757 sub scan_nfs {
 758     my ($server_in) = @_;
 759
 760     my $server;
 761     if (!($server = resolv_server ($server_in))) {
 762         die "unable to resolve address for server '${server_in}'\n";
 763     }
 764
 765     my $cmd = ['/sbin/showmount',  '--no-headers', '--exports', $server];
 766
 767     my $res = {};
 768     run_command($cmd, outfunc => sub {
 769         my $line = shift;
 770
 771         # note: howto handle white spaces in export path??
 772         if ($line =~ m!^(/\S+)\s+(.+)$!) {
 773             $res->{$1} = $2;
 774         }
 775     });
 776
 777     return $res;
 778 }
 779
 780 sub resolv_portal {
 781     my ($portal, $noerr) = @_;
 782
 783     if ($portal =~ m/^([^:]+)(:(\d+))?$/) {
 784         my $server = $1;
 785         my $port = $3;
 786
 787         if (my $ip = resolv_server($server)) {
 788             $server = $ip;
 789             return $port ? "$server:$port" : $server;
 790         }
 791     }
 792     return undef if $noerr;
 793
 794     raise_param_exc({ portal => "unable to resolve portal address '$portal'" });
 795 }
 796
 797 # idea is from usbutils package (/usr/bin/usb-devices) script
 798 sub __scan_usb_device {
 799     my ($res, $devpath, $parent, $level) = @_;
 800
 801     return if ! -d $devpath;
 802     return if $level && $devpath !~ m/^.*[-.](\d+)$/;
 803     my $port = $level ? int($1 - 1) : 0;
 804
 805     my $busnum = int(file_read_firstline("$devpath/busnum"));
 806     my $devnum = int(file_read_firstline("$devpath/devnum"));
 807
 808     my $d = {
 809         port => $port,
 810         level => $level,
 811         busnum => $busnum,
 812         devnum => $devnum,
 813         speed => file_read_firstline("$devpath/speed"),
 814         class => hex(file_read_firstline("$devpath/bDeviceClass")),
 815         vendid => file_read_firstline("$devpath/idVendor"),
 816         prodid => file_read_firstline("$devpath/idProduct"),
 817     };
 818
 819     if ($level) {
 820         my $usbpath = $devpath;
 821         $usbpath =~ s|^.*/\d+\-||;
 822         $d->{usbpath} = $usbpath;
 823     }
 824
 825     my $product = file_read_firstline("$devpath/product");
 826     $d->{product} = $product if $product;
 827
 828     my $manu = file_read_firstline("$devpath/manufacturer");
 829     $d->{manufacturer} = $manu if $manu;
 830
 831     my $serial => file_read_firstline("$devpath/serial");
 832     $d->{serial} = $serial if $serial;
 833
 834     push @$res, $d;
 835
 836     foreach my $subdev (<$devpath/$busnum-*>) {
 837         next if $subdev !~ m|/$busnum-[0-9]+(\.[0-9]+)*$|;
 838         __scan_usb_device($res, $subdev, $devnum, $level + 1);
 839     }
 840
 841 };
 842
 843 sub scan_usb {
 844
 845     my $devlist = [];
 846
 847     foreach my $device (</sys/bus/usb/devices/usb*>) {
 848         __scan_usb_device($devlist, $device, 0, 0);
 849     }
 850
 851     return $devlist;
 852 }
 853
 854 sub scan_iscsi {
 855     my ($portal_in) = @_;
 856
 857     my $portal;
 858     if (!($portal = resolv_portal($portal_in))) {
 859         die "unable to parse/resolve portal address '${portal_in}'\n";
 860     }
 861
 862     return PVE::Storage::ISCSIPlugin::iscsi_discovery($portal);
 863 }
 864
 865 sub storage_default_format {
 866     my ($cfg, $storeid) = @_;
 867
 868     my $scfg = storage_config ($cfg, $storeid);
 869
 870     return PVE::Storage::Plugin::default_format($scfg);
 871 }
 872
 873 sub vgroup_is_used {
 874     my ($cfg, $vgname) = @_;
 875
 876     foreach my $storeid (keys %{$cfg->{ids}}) {
 877         my $scfg = storage_config($cfg, $storeid);
 878         if ($scfg->{type} eq 'lvm' && $scfg->{vgname} eq $vgname) {
 879             return 1;
 880         }
 881     }
 882
 883     return undef;
 884 }
 885
 886 sub target_is_used {
 887     my ($cfg, $target) = @_;
 888
 889     foreach my $storeid (keys %{$cfg->{ids}}) {
 890         my $scfg = storage_config($cfg, $storeid);
 891         if ($scfg->{type} eq 'iscsi' && $scfg->{target} eq $target) {
 892             return 1;
 893         }
 894     }
 895
 896     return undef;
 897 }
 898
 899 sub volume_is_used {
 900     my ($cfg, $volid) = @_;
 901
 902     foreach my $storeid (keys %{$cfg->{ids}}) {
 903         my $scfg = storage_config($cfg, $storeid);
 904         if ($scfg->{base} && $scfg->{base} eq $volid) {
 905             return 1;
 906         }
 907     }
 908
 909     return undef;
 910 }
 911
 912 sub storage_is_used {
 913     my ($cfg, $storeid) = @_;
 914
 915     foreach my $sid (keys %{$cfg->{ids}}) {
 916         my $scfg = storage_config($cfg, $sid);
 917         next if !$scfg->{base};
 918         my ($st) = parse_volume_id($scfg->{base});
 919         return 1 if $st && $st eq $storeid;
 920     }
 921
 922     return undef;
 923 }
 924
 925 sub foreach_volid {
 926     my ($list, $func) = @_;
 927
 928     return if !$list;
 929
 930     foreach my $sid (keys %$list) {
 931        foreach my $info (@{$list->{$sid}}) {
 932            my $volid = $info->{volid};
 933            my ($sid1, $volname) = parse_volume_id($volid, 1);
 934            if ($sid1 && $sid1 eq $sid) {
 935                &$func ($volid, $sid, $info);
 936            } else {
 937                warn "detected strange volid '$volid' in volume list for '$sid'\n";
 938            }
 939        }
 940     }
 941 }
 942
 943 1;