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 $volid) {
 180         die "snapshot delete device is not possible";
 181     } else {
 182         die "can't delete snapshot";
 183     }
 184 }
 185
 186 sub volume_has_feature {
 187     my ($cfg, $feature, $volid, $snap, $running) = @_;
 188
 189     my ($storeid, $volname) = parse_volume_id($volid, 1);
 190     if ($storeid) {
 191         my $scfg = storage_config($cfg, $storeid);
 192         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 193         return $plugin->volume_has_feature($scfg, $feature, $storeid, $volname, $snap, $running);
 194     } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
 195         return undef;
 196     } else {
 197         return undef;
 198     }
 199 }
 200
 201 sub get_image_dir {
 202     my ($cfg, $storeid, $vmid) = @_;
 203
 204     my $scfg = storage_config($cfg, $storeid);
 205     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 206
 207     my $path = $plugin->get_subdir($scfg, 'images');
 208
 209     return $vmid ? "$path/$vmid" : $path;
 210 }
 211
 212 sub get_private_dir {
 213     my ($cfg, $storeid, $vmid) = @_;
 214
 215     my $scfg = storage_config($cfg, $storeid);
 216     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 217
 218     my $path = $plugin->get_subdir($scfg, 'rootdir');
 219
 220     return $vmid ? "$path/$vmid" : $path;
 221 }
 222
 223 sub get_iso_dir {
 224     my ($cfg, $storeid) = @_;
 225
 226     my $scfg = storage_config($cfg, $storeid);
 227     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 228
 229     return $plugin->get_subdir($scfg, 'iso');
 230 }
 231
 232 sub get_vztmpl_dir {
 233     my ($cfg, $storeid) = @_;
 234
 235     my $scfg = storage_config($cfg, $storeid);
 236     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 237
 238     return $plugin->get_subdir($scfg, 'vztmpl');
 239 }
 240
 241 sub get_backup_dir {
 242     my ($cfg, $storeid) = @_;
 243
 244     my $scfg = storage_config($cfg, $storeid);
 245     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 246
 247     return $plugin->get_subdir($scfg, 'backup');
 248 }
 249
 250 # library implementation
 251
 252 sub parse_vmid {
 253     my $vmid = shift;
 254
 255     die "VMID '$vmid' contains illegal characters\n" if $vmid !~ m/^\d+$/;
 256
 257     return int($vmid);
 258 }
 259
 260 PVE::JSONSchema::register_format('pve-volume-id', \&parse_volume_id);
 261 sub parse_volume_id {
 262     my ($volid, $noerr) = @_;
 263
 264     if ($volid =~ m/^([a-z][a-z0-9\-\_\.]*[a-z0-9]):(.+)$/i) {
 265         return wantarray ? ($1, $2) : $1;
 266     }
 267     return undef if $noerr;
 268     die "unable to parse volume ID '$volid'\n";
 269 }
 270
 271 # try to map a filesystem path to a volume identifier
 272 sub path_to_volume_id {
 273     my ($cfg, $path) = @_;
 274
 275     my $ids = $cfg->{ids};
 276
 277     my ($sid, $volname) = parse_volume_id($path, 1);
 278     if ($sid) {
 279         if (my $scfg = $ids->{$sid}) {
 280             if (my $path = $scfg->{path}) {
 281                 my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 282                 my ($vtype, $name, $vmid) = $plugin->parse_volname($volname);
 283                 return ($vtype, $path);
 284             }
 285         }
 286         return ('');
 287     }
 288
 289     # Note: abs_path() return undef if $path doesn not exist
 290     # for example when nfs storage is not mounted
 291     $path = abs_path($path) || $path;
 292
 293     foreach my $sid (keys %$ids) {
 294         my $scfg = $ids->{$sid};
 295         next if !$scfg->{path};
 296         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 297         my $imagedir = $plugin->get_subdir($scfg, 'images');
 298         my $isodir = $plugin->get_subdir($scfg, 'iso');
 299         my $tmpldir = $plugin->get_subdir($scfg, 'vztmpl');
 300         my $backupdir = $plugin->get_subdir($scfg, 'backup');
 301         my $privatedir = $plugin->get_subdir($scfg, 'rootdir');
 302
 303         if ($path =~ m!^$imagedir/(\d+)/([^/\s]+)$!) {
 304             my $vmid = $1;
 305             my $name = $2;
 306             return ('images', "$sid:$vmid/$name");
 307         } elsif ($path =~ m!^$isodir/([^/]+\.[Ii][Ss][Oo])$!) {
 308             my $name = $1;
 309             return ('iso', "$sid:iso/$name");
 310         } elsif ($path =~ m!^$tmpldir/([^/]+\.tar\.gz)$!) {
 311             my $name = $1;
 312             return ('vztmpl', "$sid:vztmpl/$name");
 313         } elsif ($path =~ m!^$privatedir/(\d+)$!) {
 314             my $vmid = $1;
 315             return ('rootdir', "$sid:rootdir/$vmid");
 316         } elsif ($path =~ m!^$backupdir/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!) {
 317             my $name = $1;
 318             return ('iso', "$sid:backup/$name");
 319         }
 320     }
 321
 322     # can't map path to volume id
 323     return ('');
 324 }
 325
 326 sub path {
 327     my ($cfg, $volid) = @_;
 328
 329     my ($storeid, $volname) = parse_volume_id($volid);
 330
 331     my $scfg = storage_config($cfg, $storeid);
 332
 333     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 334     my ($path, $owner, $vtype) = $plugin->path($scfg, $volname, $storeid);
 335     return wantarray ? ($path, $owner, $vtype) : $path;
 336 }
 337
 338 sub storage_migrate {
 339     my ($cfg, $volid, $target_host, $target_storeid, $target_volname) = @_;
 340
 341     my ($storeid, $volname) = parse_volume_id($volid);
 342     $target_volname = $volname if !$target_volname;
 343
 344     my $scfg = storage_config($cfg, $storeid);
 345
 346     # no need to migrate shared content
 347     return if $storeid eq $target_storeid && $scfg->{shared};
 348
 349     my $tcfg = storage_config($cfg, $target_storeid);
 350
 351     my $target_volid = "${target_storeid}:${target_volname}";
 352
 353     my $errstr = "unable to migrate '$volid' to '${target_volid}' on host '$target_host'";
 354
 355     my $sshoptions = "-o 'BatchMode=yes'";
 356     my $ssh = "/usr/bin/ssh $sshoptions";
 357
 358     local $ENV{RSYNC_RSH} = $ssh;
 359
 360     # only implemented for file system based storage
 361     if ($scfg->{path}) {
 362         if ($tcfg->{path}) {
 363
 364             my $src_plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 365             my $dst_plugin = PVE::Storage::Plugin->lookup($tcfg->{type});
 366             my $src = $src_plugin->path($scfg, $volname, $storeid);
 367             my $dst = $dst_plugin->path($tcfg, $target_volname, $target_storeid);
 368
 369             my $dirname = dirname($dst);
 370
 371             if ($tcfg->{shared}) { # we can do a local copy
 372
 373                 run_command(['/bin/mkdir', '-p', $dirname]);
 374
 375                 run_command(['/bin/cp', $src, $dst]);
 376
 377             } else {
 378
 379                 run_command(['/usr/bin/ssh', "root\@${target_host}",
 380                              '/bin/mkdir', '-p', $dirname]);
 381
 382                 # we use rsync with --sparse, so we can't use --inplace,
 383                 # so we remove file on the target if it already exists to
 384                 # save space
 385                 my ($size, $format) = PVE::Storage::Plugin::file_size_info($src);
 386                 if ($format && ($format eq 'raw') && $size) {
 387                     run_command(['/usr/bin/ssh', "root\@${target_host}",
 388                                  'rm', '-f', $dst],
 389                                 outfunc => sub {});
 390                 }
 391
 392                 my $cmd = ['/usr/bin/rsync', '--progress', '--sparse', '--whole-file',
 393                            $src, "root\@${target_host}:$dst"];
 394
 395                 my $percent = -1;
 396
 397                 run_command($cmd, outfunc => sub {
 398                     my $line = shift;
 399
 400                     if ($line =~ m/^\s*(\d+\s+(\d+)%\s.*)$/) {
 401                         if ($2 > $percent) {
 402                             $percent = $2;
 403                             print "rsync status: $1\n";
 404                             *STDOUT->flush();
 405                         }
 406                     } else {
 407                         print "$line\n";
 408                         *STDOUT->flush();
 409                     }
 410                 });
 411             }
 412         } else {
 413             die "$errstr - target type '$tcfg->{type}' not implemented\n";
 414         }
 415     } else {
 416         die "$errstr - source type '$scfg->{type}' not implemented\n";
 417     }
 418 }
 419
 420 sub vdisk_alloc {
 421     my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
 422
 423     die "no storage id specified\n" if !$storeid;
 424
 425     PVE::JSONSchema::parse_storage_id($storeid);
 426
 427     my $scfg = storage_config($cfg, $storeid);
 428
 429     die "no VMID specified\n" if !$vmid;
 430
 431     $vmid = parse_vmid($vmid);
 432
 433     my $defformat = PVE::Storage::Plugin::default_format($scfg);
 434
 435     $fmt = $defformat if !$fmt;
 436
 437     activate_storage($cfg, $storeid);
 438
 439     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 440
 441     # lock shared storage
 442     return $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 443         my $volname = $plugin->alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size);
 444         return "$storeid:$volname";
 445     });
 446 }
 447
 448 sub vdisk_free {
 449     my ($cfg, $volid) = @_;
 450
 451     my ($storeid, $volname) = parse_volume_id($volid);
 452
 453     my $scfg = storage_config($cfg, $storeid);
 454
 455     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 456
 457     activate_storage($cfg, $storeid);
 458
 459     my $cleanup_worker;
 460
 461     # lock shared storage
 462     $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
 463         my $cleanup_worker = $plugin->free_image($storeid, $scfg, $volname);
 464     });
 465
 466     return if !$cleanup_worker;
 467
 468     my $rpcenv = PVE::RPCEnvironment::get();
 469     my $authuser = $rpcenv->get_user();
 470
 471     $rpcenv->fork_worker('imgdel', undef, $authuser, $cleanup_worker);
 472 }
 473
 474 #list iso or openvz template ($tt = <iso|vztmpl|backup>)
 475 sub template_list {
 476     my ($cfg, $storeid, $tt) = @_;
 477
 478     die "unknown template type '$tt'\n"
 479         if !($tt eq 'iso' || $tt eq 'vztmpl' || $tt eq 'backup');
 480
 481     my $ids = $cfg->{ids};
 482
 483     storage_check_enabled($cfg, $storeid) if ($storeid);
 484
 485     my $res = {};
 486
 487     # query the storage
 488
 489     foreach my $sid (keys %$ids) {
 490         next if $storeid && $storeid ne $sid;
 491
 492         my $scfg = $ids->{$sid};
 493         my $type = $scfg->{type};
 494
 495         next if !storage_check_enabled($cfg, $sid, undef, 1);
 496
 497         next if $tt eq 'iso' && !$scfg->{content}->{iso};
 498         next if $tt eq 'vztmpl' && !$scfg->{content}->{vztmpl};
 499         next if $tt eq 'backup' && !$scfg->{content}->{backup};
 500
 501         activate_storage($cfg, $sid);
 502
 503         if ($scfg->{path}) {
 504             my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 505
 506             my $path = $plugin->get_subdir($scfg, $tt);
 507
 508             foreach my $fn (<$path/*>) {
 509
 510                 my $info;
 511
 512                 if ($tt eq 'iso') {
 513                     next if $fn !~ m!/([^/]+\.[Ii][Ss][Oo])$!;
 514
 515                     $info = { volid => "$sid:iso/$1", format => 'iso' };
 516
 517                 } elsif ($tt eq 'vztmpl') {
 518                     next if $fn !~ m!/([^/]+\.tar\.gz)$!;
 519
 520                     $info = { volid => "$sid:vztmpl/$1", format => 'tgz' };
 521
 522                 } elsif ($tt eq 'backup') {
 523                     next if $fn !~ m!/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!;
 524
 525                     $info = { volid => "$sid:backup/$1", format => $2 };
 526                 }
 527
 528                 $info->{size} = -s $fn;
 529
 530                 push @{$res->{$sid}}, $info;
 531             }
 532
 533         }
 534
 535         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 536     }
 537
 538     return $res;
 539 }
 540
 541
 542 sub vdisk_list {
 543     my ($cfg, $storeid, $vmid, $vollist) = @_;
 544
 545     my $ids = $cfg->{ids};
 546
 547     storage_check_enabled($cfg, $storeid) if ($storeid);
 548
 549     my $res = {};
 550
 551     # prepare/activate/refresh all storages
 552
 553     my $storage_list = [];
 554     if ($vollist) {
 555         foreach my $volid (@$vollist) {
 556             my ($sid, undef) = parse_volume_id($volid);
 557             next if !defined($ids->{$sid});
 558             next if !storage_check_enabled($cfg, $sid, undef, 1);
 559             push @$storage_list, $sid;
 560         }
 561     } else {
 562         foreach my $sid (keys %$ids) {
 563             next if $storeid && $storeid ne $sid;
 564             next if !storage_check_enabled($cfg, $sid, undef, 1);
 565             push @$storage_list, $sid;
 566         }
 567     }
 568
 569     my $cache = {};
 570
 571     activate_storage_list($cfg, $storage_list, $cache);
 572
 573     foreach my $sid (keys %$ids) {
 574         next if $storeid && $storeid ne $sid;
 575         next if !storage_check_enabled($cfg, $sid, undef, 1);
 576
 577         my $scfg = $ids->{$sid};
 578         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 579         $res->{$sid} = $plugin->list_images($sid, $scfg, $vmid, $vollist, $cache);
 580         @{$res->{$sid}} = sort {lc($a->{volid}) cmp lc ($b->{volid}) } @{$res->{$sid}} if $res->{$sid};
 581     }
 582
 583     return $res;
 584 }
 585
 586 sub uevent_seqnum {
 587
 588     my $filename = "/sys/kernel/uevent_seqnum";
 589
 590     my $seqnum = 0;
 591     if (my $fh = IO::File->new($filename, "r")) {
 592         my $line = <$fh>;
 593         if ($line =~ m/^(\d+)$/) {
 594             $seqnum = int($1);
 595         }
 596         close ($fh);
 597     }
 598     return $seqnum;
 599 }
 600
 601 sub activate_storage {
 602     my ($cfg, $storeid, $cache) = @_;
 603
 604     $cache = {} if !$cache;
 605
 606     my $scfg = storage_check_enabled($cfg, $storeid);
 607
 608     return if $cache->{activated}->{$storeid};
 609
 610     $cache->{uevent_seqnum} = uevent_seqnum() if !$cache->{uevent_seqnum};
 611
 612     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 613
 614     if ($scfg->{base}) {
 615         my ($baseid, undef) = parse_volume_id ($scfg->{base});
 616         activate_storage($cfg, $baseid, $cache);
 617     }
 618
 619     if (!$plugin->check_connection($storeid, $scfg)) {
 620         die "storage '$storeid' is not online\n";
 621     }
 622
 623     $plugin->activate_storage($storeid, $scfg, $cache);
 624
 625     my $newseq = uevent_seqnum ();
 626
 627     # only call udevsettle if there are events
 628     if ($newseq > $cache->{uevent_seqnum}) {
 629         my $timeout = 30;
 630         system ("$UDEVADM settle --timeout=$timeout"); # ignore errors
 631         $cache->{uevent_seqnum} = $newseq;
 632     }
 633
 634     $cache->{activated}->{$storeid} = 1;
 635 }
 636
 637 sub activate_storage_list {
 638     my ($cfg, $storeid_list, $cache) = @_;
 639
 640     $cache = {} if !$cache;
 641
 642     foreach my $storeid (@$storeid_list) {
 643         activate_storage($cfg, $storeid, $cache);
 644     }
 645 }
 646
 647 sub deactivate_storage {
 648     my ($cfg, $storeid) = @_;
 649
 650     my $scfg = storage_config ($cfg, $storeid);
 651     my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 652
 653     my $cache = {};
 654     $plugin->deactivate_storage($storeid, $scfg, $cache);
 655 }
 656
 657 sub activate_volumes {
 658     my ($cfg, $vollist, $exclusive) = @_;
 659
 660     return if !($vollist && scalar(@$vollist));
 661
 662     my $storagehash = {};
 663     foreach my $volid (@$vollist) {
 664         my ($storeid, undef) = parse_volume_id($volid);
 665         $storagehash->{$storeid} = 1;
 666     }
 667
 668     my $cache = {};
 669
 670     activate_storage_list($cfg, [keys %$storagehash], $cache);
 671
 672     foreach my $volid (@$vollist) {
 673         my ($storeid, $volname) = parse_volume_id($volid);
 674         my $scfg = storage_config($cfg, $storeid);
 675         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 676         $plugin->activate_volume($storeid, $scfg, $volname, $exclusive, $cache);
 677     }
 678 }
 679
 680 sub deactivate_volumes {
 681     my ($cfg, $vollist) = @_;
 682
 683     return if !($vollist && scalar(@$vollist));
 684
 685     my $cache = {};
 686
 687     my @errlist = ();
 688     foreach my $volid (@$vollist) {
 689         my ($storeid, $volname) = parse_volume_id($volid);
 690
 691         my $scfg = storage_config($cfg, $storeid);
 692         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 693
 694         eval {
 695             $plugin->deactivate_volume($storeid, $scfg, $volname, $cache);
 696         };
 697         if (my $err = $@) {
 698             warn $err;
 699             push @errlist, $volid;
 700         }
 701     }
 702
 703     die "volume deativation failed: " . join(' ', @errlist)
 704         if scalar(@errlist);
 705 }
 706
 707 sub storage_info {
 708     my ($cfg, $content) = @_;
 709
 710     my $ids = $cfg->{ids};
 711
 712     my $info = {};
 713
 714     my $slist = [];
 715     foreach my $storeid (keys %$ids) {
 716
 717         next if $content && !$ids->{$storeid}->{content}->{$content};
 718
 719         next if !storage_check_enabled($cfg, $storeid, undef, 1);
 720
 721         my $type = $ids->{$storeid}->{type};
 722
 723         $info->{$storeid} = {
 724             type => $type,
 725             total => 0,
 726             avail => 0,
 727             used => 0,
 728             shared => $ids->{$storeid}->{shared} ? 1 : 0,
 729             content => PVE::Storage::Plugin::content_hash_to_string($ids->{$storeid}->{content}),
 730             active => 0,
 731         };
 732
 733         push @$slist, $storeid;
 734     }
 735
 736     my $cache = {};
 737
 738     foreach my $storeid (keys %$ids) {
 739         my $scfg = $ids->{$storeid};
 740         next if !$info->{$storeid};
 741
 742         eval { activate_storage($cfg, $storeid, $cache); };
 743         if (my $err = $@) {
 744             warn $err;
 745             next;
 746         }
 747
 748         my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
 749         my ($total, $avail, $used, $active);
 750         eval { ($total, $avail, $used, $active) = $plugin->status($storeid, $scfg, $cache); };
 751         warn $@ if $@;
 752         next if !$active;
 753         $info->{$storeid}->{total} = $total;
 754         $info->{$storeid}->{avail} = $avail;
 755         $info->{$storeid}->{used} = $used;
 756         $info->{$storeid}->{active} = $active;
 757     }
 758
 759     return $info;
 760 }
 761
 762 sub resolv_server {
 763     my ($server) = @_;
 764
 765     my $packed_ip = gethostbyname($server);
 766     if (defined $packed_ip) {
 767         return inet_ntoa($packed_ip);
 768     }
 769     return undef;
 770 }
 771
 772 sub scan_nfs {
 773     my ($server_in) = @_;
 774
 775     my $server;
 776     if (!($server = resolv_server ($server_in))) {
 777         die "unable to resolve address for server '${server_in}'\n";
 778     }
 779
 780     my $cmd = ['/sbin/showmount',  '--no-headers', '--exports', $server];
 781
 782     my $res = {};
 783     run_command($cmd, outfunc => sub {
 784         my $line = shift;
 785
 786         # note: howto handle white spaces in export path??
 787         if ($line =~ m!^(/\S+)\s+(.+)$!) {
 788             $res->{$1} = $2;
 789         }
 790     });
 791
 792     return $res;
 793 }
 794
 795 sub resolv_portal {
 796     my ($portal, $noerr) = @_;
 797
 798     if ($portal =~ m/^([^:]+)(:(\d+))?$/) {
 799         my $server = $1;
 800         my $port = $3;
 801
 802         if (my $ip = resolv_server($server)) {
 803             $server = $ip;
 804             return $port ? "$server:$port" : $server;
 805         }
 806     }
 807     return undef if $noerr;
 808
 809     raise_param_exc({ portal => "unable to resolve portal address '$portal'" });
 810 }
 811
 812 # idea is from usbutils package (/usr/bin/usb-devices) script
 813 sub __scan_usb_device {
 814     my ($res, $devpath, $parent, $level) = @_;
 815
 816     return if ! -d $devpath;
 817     return if $level && $devpath !~ m/^.*[-.](\d+)$/;
 818     my $port = $level ? int($1 - 1) : 0;
 819
 820     my $busnum = int(file_read_firstline("$devpath/busnum"));
 821     my $devnum = int(file_read_firstline("$devpath/devnum"));
 822
 823     my $d = {
 824         port => $port,
 825         level => $level,
 826         busnum => $busnum,
 827         devnum => $devnum,
 828         speed => file_read_firstline("$devpath/speed"),
 829         class => hex(file_read_firstline("$devpath/bDeviceClass")),
 830         vendid => file_read_firstline("$devpath/idVendor"),
 831         prodid => file_read_firstline("$devpath/idProduct"),
 832     };
 833
 834     if ($level) {
 835         my $usbpath = $devpath;
 836         $usbpath =~ s|^.*/\d+\-||;
 837         $d->{usbpath} = $usbpath;
 838     }
 839
 840     my $product = file_read_firstline("$devpath/product");
 841     $d->{product} = $product if $product;
 842
 843     my $manu = file_read_firstline("$devpath/manufacturer");
 844     $d->{manufacturer} = $manu if $manu;
 845
 846     my $serial => file_read_firstline("$devpath/serial");
 847     $d->{serial} = $serial if $serial;
 848
 849     push @$res, $d;
 850
 851     foreach my $subdev (<$devpath/$busnum-*>) {
 852         next if $subdev !~ m|/$busnum-[0-9]+(\.[0-9]+)*$|;
 853         __scan_usb_device($res, $subdev, $devnum, $level + 1);
 854     }
 855
 856 };
 857
 858 sub scan_usb {
 859
 860     my $devlist = [];
 861
 862     foreach my $device (</sys/bus/usb/devices/usb*>) {
 863         __scan_usb_device($devlist, $device, 0, 0);
 864     }
 865
 866     return $devlist;
 867 }
 868
 869 sub scan_iscsi {
 870     my ($portal_in) = @_;
 871
 872     my $portal;
 873     if (!($portal = resolv_portal($portal_in))) {
 874         die "unable to parse/resolve portal address '${portal_in}'\n";
 875     }
 876
 877     return PVE::Storage::ISCSIPlugin::iscsi_discovery($portal);
 878 }
 879
 880 sub storage_default_format {
 881     my ($cfg, $storeid) = @_;
 882
 883     my $scfg = storage_config ($cfg, $storeid);
 884
 885     return PVE::Storage::Plugin::default_format($scfg);
 886 }
 887
 888 sub vgroup_is_used {
 889     my ($cfg, $vgname) = @_;
 890
 891     foreach my $storeid (keys %{$cfg->{ids}}) {
 892         my $scfg = storage_config($cfg, $storeid);
 893         if ($scfg->{type} eq 'lvm' && $scfg->{vgname} eq $vgname) {
 894             return 1;
 895         }
 896     }
 897
 898     return undef;
 899 }
 900
 901 sub target_is_used {
 902     my ($cfg, $target) = @_;
 903
 904     foreach my $storeid (keys %{$cfg->{ids}}) {
 905         my $scfg = storage_config($cfg, $storeid);
 906         if ($scfg->{type} eq 'iscsi' && $scfg->{target} eq $target) {
 907             return 1;
 908         }
 909     }
 910
 911     return undef;
 912 }
 913
 914 sub volume_is_used {
 915     my ($cfg, $volid) = @_;
 916
 917     foreach my $storeid (keys %{$cfg->{ids}}) {
 918         my $scfg = storage_config($cfg, $storeid);
 919         if ($scfg->{base} && $scfg->{base} eq $volid) {
 920             return 1;
 921         }
 922     }
 923
 924     return undef;
 925 }
 926
 927 sub storage_is_used {
 928     my ($cfg, $storeid) = @_;
 929
 930     foreach my $sid (keys %{$cfg->{ids}}) {
 931         my $scfg = storage_config($cfg, $sid);
 932         next if !$scfg->{base};
 933         my ($st) = parse_volume_id($scfg->{base});
 934         return 1 if $st && $st eq $storeid;
 935     }
 936
 937     return undef;
 938 }
 939
 940 sub foreach_volid {
 941     my ($list, $func) = @_;
 942
 943     return if !$list;
 944
 945     foreach my $sid (keys %$list) {
 946        foreach my $info (@{$list->{$sid}}) {
 947            my $volid = $info->{volid};
 948            my ($sid1, $volname) = parse_volume_id($volid, 1);
 949            if ($sid1 && $sid1 eq $sid) {
 950                &$func ($volid, $sid, $info);
 951            } else {
 952                warn "detected strange volid '$volid' in volume list for '$sid'\n";
 953            }
 954        }
 955     }
 956 }
 957
 958 1;