]>
git.proxmox.com Git - pve-common.git/blob - data/PVE/Tools.pm
8 use File
::Path
qw(make_path);
11 use Fcntl
qw(:DEFAULT :flock);
30 my $pvelogdir = "/var/log/pve";
31 my $pvetaskdir = "$pvelogdir/tasks";
36 # flock: we use one file handle per process, so lock file
37 # can be called multiple times and succeeds for the same process.
39 my $lock_handles = {};
42 my ($filename, $timeout, $code, @param) = @_;
46 $timeout = 10 if !$timeout;
50 local $SIG{ALRM
} = sub { die "got timeout (can't lock '$filename')\n"; };
54 if (!$lock_handles->{$$}->{$filename}) {
55 $lock_handles->{$$}->{$filename} = new IO
::File
(">>$filename") ||
56 die "can't open lock file '$filename' - $!\n";
59 if (!flock ($lock_handles->{$$}->{$filename}, LOCK_EX
|LOCK_NB
)) {
60 print STDERR
"trying to aquire lock...";
61 if (!flock ($lock_handles->{$$}->{$filename}, LOCK_EX
)) {
62 print STDERR
" failed\n";
63 die "can't aquire lock for '$filename' - $!\n";
69 $res = &$code(@param);
76 if ($lock_handles->{$$}->{$filename}) {
77 my $fh = $lock_handles->{$$}->{$filename};
78 $lock_handles->{$$}->{$filename} = undef;
92 sub file_set_contents
{
93 my ($filename, $data, $perm) = @_;
95 $perm = 0644 if !defined($perm);
97 my $tmpname = "$filename.tmp.$$";
100 my $fh = IO
::File-
>new($tmpname, O_WRONLY
|O_CREAT
, $perm);
101 die "unable to open file '$tmpname' - $!\n" if !$fh;
102 die "unable to write '$tmpname' - $!\n" unless print $fh $data;
103 die "closing file '$tmpname' failed - $!\n" unless close $fh;
112 if (!rename($tmpname, $filename)) {
113 my $msg = "close (rename) atomic file '$filename' failed: $!\n";
119 sub file_get_contents
{
120 my ($filename, $max) = @_;
122 my $fh = IO
::File-
>new($filename, "r") ||
123 die "can't open '$filename' - $!\n";
125 my $content = safe_read_from
($fh, $max);
132 sub file_read_firstline
{
135 my $fh = IO
::File-
>new ($filename, "r");
136 return undef if !$fh;
144 my ($fh, $max, $oneline) = @_;
146 $max = 32768 if !$max;
151 while ($count = sysread($fh, $input, 8192, $br)) {
153 die "input too long - aborting\n" if $br > $max;
154 if ($oneline && $input =~ m/^(.*)\n/) {
159 die "unable to read input - $!\n" if !defined($count);
165 my ($cmd, %param) = @_;
169 $cmd = [ $cmd ] if !ref($cmd);
171 my $cmdstr = join (' ', @$cmd);
186 foreach my $p (keys %param) {
187 if ($p eq 'timeout') {
188 $timeout = $param{$p};
189 } elsif ($p eq 'umask') {
191 } elsif ($p eq 'errmsg') {
192 $errmsg = $param{$p};
194 print STDERR
"$laststderr\n" if $laststderr;
197 } elsif ($p eq 'input') {
199 } elsif ($p eq 'output') {
200 $output = $param{$p};
201 } elsif ($p eq 'outfunc') {
202 $outfunc = $param{$p};
203 } elsif ($p eq 'errfunc') {
204 $errfunc = $param{$p};
205 } elsif ($p eq 'logfunc') {
206 $logfunc = $param{$p};
208 die "got unknown parameter '$p' for run_command\n";
212 my $reader = $output && $output =~ m/^>&/ ?
$output : IO
::File-
>new();
213 my $writer = $input && $input =~ m/^<&/ ?
$input : IO
::File-
>new();
214 my $error = IO
::File-
>new();
216 # try to avoid locale related issues/warnings
217 my $lang = $param{lang
} || 'C';
222 local $ENV{LC_ALL
} = $lang;
224 # suppress LVM warnings like: "File descriptor 3 left open";
225 local $ENV{LVM_SUPPRESS_FD_WARNINGS
} = "1";
227 $pid = open3
($writer, $reader, $error, @$cmd) || die $!;
233 if ($orig_pid != $$) {
241 local $SIG{ALRM
} = sub { die "got timeout\n"; } if $timeout;
242 $oldtimeout = alarm($timeout) if $timeout;
244 print $writer $input if defined $input;
247 my $select = new IO
::Select
;
248 $select->add($reader);
249 $select->add($error);
254 my $starttime = time();
256 while ($select->count) {
257 my @handles = $select->can_read(1);
259 foreach my $h (@handles) {
261 my $count = sysread ($h, $buf, 4096);
262 if (!defined ($count)) {
268 $select->remove ($h) if !$count;
270 if ($outfunc || $logfunc) {
273 while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) {
275 &$outfunc($line) if $outfunc;
276 &$logfunc($line) if $logfunc;
289 } elsif ($h eq $error) {
290 if ($errfunc || $logfunc) {
293 while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) {
295 &$errfunc($line) if $errfunc;
296 &$logfunc($line) if $logfunc;
313 &$outfunc($outlog) if $outfunc && $outlog;
314 &$logfunc($outlog) if $logfunc && $outlog;
316 &$errfunc($errlog) if $errfunc && $errlog;
317 &$logfunc($errlog) if $logfunc && $errlog;
322 die "failed to execute\n";
323 } elsif (my $sig = ($? & 127)) {
324 die "got signal $sig\n";
325 } elsif (my $ec = ($? >> 8)) {
326 if (!($ec == 24 && ($cmdstr =~ m
|^(\S
+/)?rsync\s
|))) {
327 if ($errmsg && $laststderr) {
328 my $lerr = $laststderr;
332 die "exit code $ec\n";
343 print STDERR
"$laststderr\n" if $laststderr;
345 umask ($old_umask) if defined($old_umask);
347 alarm($oldtimeout) if $oldtimeout;
350 if ($pid && ($err eq "got timeout\n")) {
353 die "command '$cmdstr' failed: $err";
359 die "command '$cmdstr' failed: $err";
367 my $listtxt = shift || '';
369 return split (/\0/, $listtxt) if $listtxt =~ m/\0/;
371 $listtxt =~ s/[,;]/ /g;
372 $listtxt =~ s/^\s+//;
374 my @data = split (/\s+/, $listtxt);
382 return $txt if !defined($txt);
390 # simple uri templates like "/vms/{vmid}"
391 sub template_replace
{
392 my ($tmpl, $data) = @_;
395 while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) {
397 $res .= ($data->{$3} || '-') if $2;
403 my ($filename, $fh, $data) = @_;
407 my $res = print $fh $data;
409 die "write to '$filename' failed\n" if !$res;
415 'at' => 'ftp.at.debian.org',
416 'au' => 'ftp.au.debian.org',
417 'be' => 'ftp.be.debian.org',
418 'bg' => 'ftp.bg.debian.org',
419 'br' => 'ftp.br.debian.org',
420 'ca' => 'ftp.ca.debian.org',
421 'ch' => 'ftp.ch.debian.org',
422 'cl' => 'ftp.cl.debian.org',
423 'cz' => 'ftp.cz.debian.org',
424 'de' => 'ftp.de.debian.org',
425 'dk' => 'ftp.dk.debian.org',
426 'ee' => 'ftp.ee.debian.org',
427 'es' => 'ftp.es.debian.org',
428 'fi' => 'ftp.fi.debian.org',
429 'fr' => 'ftp.fr.debian.org',
430 'gr' => 'ftp.gr.debian.org',
431 'hk' => 'ftp.hk.debian.org',
432 'hr' => 'ftp.hr.debian.org',
433 'hu' => 'ftp.hu.debian.org',
434 'ie' => 'ftp.ie.debian.org',
435 'is' => 'ftp.is.debian.org',
436 'it' => 'ftp.it.debian.org',
437 'jp' => 'ftp.jp.debian.org',
438 'kr' => 'ftp.kr.debian.org',
439 'mx' => 'ftp.mx.debian.org',
440 'nl' => 'ftp.nl.debian.org',
441 'no' => 'ftp.no.debian.org',
442 'nz' => 'ftp.nz.debian.org',
443 'pl' => 'ftp.pl.debian.org',
444 'pt' => 'ftp.pt.debian.org',
445 'ro' => 'ftp.ro.debian.org',
446 'ru' => 'ftp.ru.debian.org',
447 'se' => 'ftp.se.debian.org',
448 'si' => 'ftp.si.debian.org',
449 'sk' => 'ftp.sk.debian.org',
450 'tr' => 'ftp.tr.debian.org',
451 'tw' => 'ftp.tw.debian.org',
452 'gb' => 'ftp.uk.debian.org',
453 'us' => 'ftp.us.debian.org',
459 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'],
460 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ],
461 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ],
462 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', 'intl' ],
463 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', 'intl' ],
464 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'],
465 #'et' => [], # Ethopia or Estonia ??
466 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'],
467 #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'],
468 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'],
469 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'],
470 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'],
471 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'],
472 #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2?
473 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef],
474 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'],
475 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'],
476 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef],
477 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'],
478 #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7?
479 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'],
480 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef],
481 #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?],
482 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'],
483 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef],
484 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'],
485 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'],
486 #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know?
487 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef],
488 #'sv' => [], Swedish ?
495 my ($param, $key) = @_;
497 my $res = $param->{$key};
498 delete $param->{$key};
505 for (my $p = 5900; $p < 6000; $p++) {
507 my $sock = IO
::Socket
::INET-
>new (Listen
=> 5,
508 LocalAddr
=> 'localhost',
519 die "unable to find free vnc port";
522 # NOTE: NFS syscall can't be interrupted, so alarm does
523 # not work to provide timeouts.
524 # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation"
525 # So the spawn external 'df' process instead of using
526 # Filesys::Df (which uses statfs syscall)
528 my ($path, $timeout) = @_;
530 my $cmd = [ 'df', '-P', '-B', '1', $path];
540 if (my ($fsid, $total, $used, $avail) = $line =~
541 m/^(\S+.*)\s+(\d+)\s+(\d+)\s+(\d+)\s+\d+%\s.*$/) {
549 eval { run_command
($cmd, timeout
=> $timeout, outfunc
=> $parser); };
556 # We use this to uniquely identify a process.
557 # An 'Unique Process ID' has the following format:
558 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
563 return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node
}, $d->{pid
},
564 $d->{pstart
}, $d->{starttime
}, $d->{type
}, $d->{id
},
569 my ($upid, $noerr) = @_;
574 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
575 if ($upid =~ m/^UPID:([A-Za-z][[:alnum:]\-]*[[:alnum:]]+):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8}):([^:\s]+):([^:\s]*):([^:\s]+):$/) {
577 $res->{pid
} = hex($2);
578 $res->{pstart
} = hex($3);
579 $res->{starttime
} = hex($4);
584 my $subdir = substr($4, 7, 8);
585 $filename = "$pvetaskdir/$subdir/$upid";
588 return undef if $noerr;
589 die "unable to parse worker upid '$upid'\n";
592 return wantarray ?
($res, $filename) : $res;
598 my ($task, $filename) = upid_decode
($upid);
600 my $dirname = dirname
($filename);
603 my $wwwid = getpwnam('www-data') ||
604 die "getpwnam failed";
608 my $outfh = IO
::File-
>new ($filename, O_WRONLY
|O_CREAT
|O_EXCL
, $perm) ||
609 die "unable to create output file '$filename' - $!\n";
610 chown $wwwid, $outfh;
615 sub upid_read_status
{
618 my ($task, $filename) = upid_decode
($upid);
619 my $fh = IO
::File-
>new($filename, "r");
620 return "unable to open file - $!" if !$fh;
622 sysseek($fh, -$maxlen, 2);
624 my $br = sysread($fh, $readbuf, $maxlen);
627 return "unable to extract last line"
628 if $readbuf !~ m/\n?(.+)$/;
630 if ($line =~ m/^TASK OK$/) {
632 } elsif ($line =~ m/^TASK ERROR: (.+)$/) {
635 return "unexpected status";
638 return "unable to read tail (got $br bytes)";
641 # useful functions to store comments in config files
645 # all control and hi-bit characters, and ':'
646 my $unsafe = "^\x20-\x39\x3b-\x7e";
647 return uri_escape
(Encode
::encode
("utf8", $text), $unsafe);
653 return Encode
::decode
("utf8", uri_unescape
($data));
656 sub random_ether_addr
{
658 my $rand = Digest
::SHA1
::sha1_hex
(rand(), time());
661 for (my $i = 0; $i < 6; $i++) {
662 my $ss = hex(substr($rand, $i*2, 2));
664 $ss &= 0xfe; # clear multicast
665 $ss |= 2; # set local id
667 $ss = sprintf("%02X", $ss);