7 use Socket
qw(AF_INET AF_INET6 AI_ALL AI_V4MAPPED);
10 use File
::Path
qw(make_path);
11 use Filesys
::Df
(); # don't overwrite our df()
17 use Fcntl
qw(:DEFAULT :flock);
23 use String
::ShellQuote
;
24 use Time
::HiRes
qw(usleep gettimeofday tv_interval alarm);
26 # avoid warning when parsing long hex values with hex()
27 no warnings
'portable'; # Support for 64-bit ints required
48 my $pvelogdir = "/var/log/pve";
49 my $pvetaskdir = "$pvelogdir/tasks";
54 my $IPV4OCTET = "(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])";
55 our $IPV4RE = "(?:(?:$IPV4OCTET\\.){3}$IPV4OCTET)";
56 my $IPV6H16 = "(?:[0-9a-fA-F]{1,4})";
57 my $IPV6LS32 = "(?:(?:$IPV4RE|$IPV6H16:$IPV6H16))";
60 "(?:(?:" . "(?:$IPV6H16:){6})$IPV6LS32)|" .
61 "(?:(?:" . "::(?:$IPV6H16:){5})$IPV6LS32)|" .
62 "(?:(?:(?:" . "$IPV6H16)?::(?:$IPV6H16:){4})$IPV6LS32)|" .
63 "(?:(?:(?:(?:$IPV6H16:){0,1}$IPV6H16)?::(?:$IPV6H16:){3})$IPV6LS32)|" .
64 "(?:(?:(?:(?:$IPV6H16:){0,2}$IPV6H16)?::(?:$IPV6H16:){2})$IPV6LS32)|" .
65 "(?:(?:(?:(?:$IPV6H16:){0,3}$IPV6H16)?::(?:$IPV6H16:){1})$IPV6LS32)|" .
66 "(?:(?:(?:(?:$IPV6H16:){0,4}$IPV6H16)?::" . ")$IPV6LS32)|" .
67 "(?:(?:(?:(?:$IPV6H16:){0,5}$IPV6H16)?::" . ")$IPV6H16)|" .
68 "(?:(?:(?:(?:$IPV6H16:){0,6}$IPV6H16)?::" . ")))";
70 our $IPRE = "(?:$IPV4RE|$IPV6RE)";
72 use constant {CLONE_NEWNS
=> 0x00020000,
73 CLONE_NEWUTS
=> 0x04000000,
74 CLONE_NEWIPC
=> 0x08000000,
75 CLONE_NEWUSER
=> 0x10000000,
76 CLONE_NEWPID
=> 0x20000000,
77 CLONE_NEWNET
=> 0x40000000};
79 use constant {O_PATH
=> 0x00200000,
80 O_TMPFILE
=> 0x00410000}; # This includes O_DIRECTORY
82 sub run_with_timeout
{
83 my ($timeout, $code, @param) = @_;
85 die "got timeout\n" if $timeout <= 0;
87 my $prev_alarm = alarm 0; # suspend outer alarm early
94 local $SIG{ALRM
} = sub { $sigcount++; die "got timeout\n"; };
95 local $SIG{PIPE
} = sub { $sigcount++; die "broken pipe\n" };
96 local $SIG{__DIE__
}; # see SA bug 4631
100 eval { $res = &$code(@param); };
102 alarm(0); # avoid race conditions
111 # this shouldn't happen anymore?
112 die "unknown error" if $sigcount && !$err; # seems to happen sometimes
119 # flock: we use one file handle per process, so lock file
120 # can be called multiple times and succeeds for the same process.
122 my $lock_handles = {};
125 my ($filename, $timeout, $shared, $code, @param) = @_;
127 $timeout = 10 if !$timeout;
129 my $mode = $shared ? LOCK_SH
: LOCK_EX
;
131 my $lock_func = sub {
132 if (!$lock_handles->{$$}->{$filename}) {
133 my $fh = new IO
::File
(">>$filename") ||
134 die "can't open file - $!\n";
135 $lock_handles->{$$}->{$filename} = { fh
=> $fh, refcount
=> 0};
138 if (!flock($lock_handles->{$$}->{$filename}->{fh
}, $mode|LOCK_NB
)) {
139 print STDERR
"trying to acquire lock...";
142 $success = flock($lock_handles->{$$}->{$filename}->{fh
}, $mode);
143 # try again on EINTR (see bug #273)
144 if ($success || ($! != EINTR
)) {
149 print STDERR
" failed\n";
150 die "can't acquire lock '$filename' - $!\n";
152 print STDERR
" OK\n";
154 $lock_handles->{$$}->{$filename}->{refcount
}++;
159 eval { run_with_timeout
($timeout, $lock_func); };
162 $err = "can't lock file '$filename' - $err";
164 eval { $res = &$code(@param) };
168 if (my $fh = $lock_handles->{$$}->{$filename}->{fh
}) {
169 my $refcount = --$lock_handles->{$$}->{$filename}->{refcount
};
170 if ($refcount <= 0) {
171 $lock_handles->{$$}->{$filename} = undef;
188 my ($filename, $timeout, $code, @param) = @_;
190 return lock_file_full
($filename, $timeout, 0, $code, @param);
193 sub file_set_contents
{
194 my ($filename, $data, $perm) = @_;
196 $perm = 0644 if !defined($perm);
198 my $tmpname = "$filename.tmp.$$";
201 my $fh = IO
::File-
>new($tmpname, O_WRONLY
|O_CREAT
, $perm);
202 die "unable to open file '$tmpname' - $!\n" if !$fh;
203 die "unable to write '$tmpname' - $!\n" unless print $fh $data;
204 die "closing file '$tmpname' failed - $!\n" unless close $fh;
213 if (!rename($tmpname, $filename)) {
214 my $msg = "close (rename) atomic file '$filename' failed: $!\n";
220 sub file_get_contents
{
221 my ($filename, $max) = @_;
223 my $fh = IO
::File-
>new($filename, "r") ||
224 die "can't open '$filename' - $!\n";
226 my $content = safe_read_from
($fh, $max);
234 my ($filename, $dst, $max, $perm) = @_;
236 file_set_contents
($dst, file_get_contents
($filename, $max), $perm);
239 sub file_read_firstline
{
242 my $fh = IO
::File-
>new ($filename, "r");
243 return undef if !$fh;
251 my ($fh, $max, $oneline) = @_;
253 $max = 32768 if !$max;
258 while ($count = sysread($fh, $input, 8192, $br)) {
260 die "input too long - aborting\n" if $br > $max;
261 if ($oneline && $input =~ m/^(.*)\n/) {
266 die "unable to read input - $!\n" if !defined($count);
271 # The $cmd parameter can be:
273 # This is generally executed by passing it to the shell with the -c option.
274 # However, it can be executed in one of two ways, depending on whether
275 # there's a pipe involved:
276 # *) with pipe: passed explicitly to bash -c, prefixed with:
278 # *) without a pipe: passed to perl's open3 which uses 'sh -c'
279 # (Note that this may result in two different syntax requirements!)
281 # -) an array of arguments (strings)
282 # Will be executed without interference from a shell. (Parameters are passed
283 # as is, no escape sequences of strings will be touched.)
284 # -) an array of arrays
285 # Each array represents a command, and each command's output is piped into
286 # the following command's standard input.
287 # For this a shell command string is created with pipe symbols between each
289 # Each command is a list of strings meant to end up in the final command
290 # unchanged. In order to achieve this, every argument is shell-quoted.
291 # Quoting can be disabled for a particular argument by turning it into a
292 # reference, this allows inserting arbitrary shell options.
293 # For instance: the $cmd [ [ 'echo', 'hello', \'>/dev/null' ] ] will not
294 # produce any output, while the $cmd [ [ 'echo', 'hello', '>/dev/null' ] ]
295 # will literally print: hello >/dev/null
297 my ($cmd, %param) = @_;
302 if (my $ref = ref($cmd)) {
303 if (ref($cmd->[0])) {
304 $cmdstr = 'set -o pipefail && ';
306 foreach my $command (@$cmd) {
307 # concatenate quoted parameters
308 # strings which are passed by reference are NOT shell quoted
309 $cmdstr .= $pipe . join(' ', map { ref($_) ?
$$_ : shellquote
($_) } @$command);
312 $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmdstr" ];
314 $cmdstr = cmd2string
($cmd);
319 # see 'man bash' for option pipefail
320 $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmd" ];
343 foreach my $p (keys %param) {
344 if ($p eq 'timeout') {
345 $timeout = $param{$p};
346 } elsif ($p eq 'umask') {
347 $old_umask = umask($param{$p});
348 } elsif ($p eq 'errmsg') {
349 $errmsg = $param{$p};
350 } elsif ($p eq 'input') {
352 } elsif ($p eq 'output') {
353 $output = $param{$p};
354 } elsif ($p eq 'outfunc') {
355 $outfunc = $param{$p};
356 } elsif ($p eq 'errfunc') {
357 $errfunc = $param{$p};
358 } elsif ($p eq 'logfunc') {
359 $logfunc = $param{$p};
360 } elsif ($p eq 'afterfork') {
361 $afterfork = $param{$p};
362 } elsif ($p eq 'noerr') {
365 die "got unknown parameter '$p' for run_command\n";
370 my $origerrfunc = $errfunc;
374 &$origerrfunc("$laststderr\n");
376 print STDERR
"$laststderr\n" if $laststderr;
383 my $reader = $output && $output =~ m/^>&/ ?
$output : IO
::File-
>new();
384 my $writer = $input && $input =~ m/^<&/ ?
$input : IO
::File-
>new();
385 my $error = IO
::File-
>new();
387 # try to avoid locale related issues/warnings
388 my $lang = $param{lang
} || 'C';
393 local $ENV{LC_ALL
} = $lang;
395 # suppress LVM warnings like: "File descriptor 3 left open";
396 local $ENV{LVM_SUPPRESS_FD_WARNINGS
} = "1";
398 $pid = open3
($writer, $reader, $error, @$cmd) || die $!;
400 # if we pipe fron STDIN, open3 closes STDIN, so we we
401 # a perl warning "Filehandle STDIN reopened as GENXYZ .. "
402 # as soon as we open a new file.
403 # to avoid that we open /dev/null
404 if (!ref($writer) && !defined(fileno(STDIN
))) {
406 open(STDIN
, "</dev/null");
413 if ($orig_pid != $$) {
421 local $SIG{ALRM
} = sub { die "got timeout\n"; } if $timeout;
422 $oldtimeout = alarm($timeout) if $timeout;
424 &$afterfork() if $afterfork;
427 print $writer $input if defined $input;
431 my $select = new IO
::Select
;
432 $select->add($reader) if ref($reader);
433 $select->add($error);
438 my $starttime = time();
440 while ($select->count) {
441 my @handles = $select->can_read(1);
443 foreach my $h (@handles) {
445 my $count = sysread ($h, $buf, 4096);
446 if (!defined ($count)) {
452 $select->remove ($h) if !$count;
454 if ($outfunc || $logfunc) {
457 while ($outlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) {
459 &$outfunc($line) if $outfunc;
460 &$logfunc($line) if $logfunc;
473 } elsif ($h eq $error) {
474 if ($errfunc || $logfunc) {
477 while ($errlog =~ s/^([^\010\r\n]*)(\r|\n|(\010)+|\r\n)//s) {
479 &$errfunc($line) if $errfunc;
480 &$logfunc($line) if $logfunc;
497 &$outfunc($outlog) if $outfunc && $outlog;
498 &$logfunc($outlog) if $logfunc && $outlog;
500 &$errfunc($errlog) if $errfunc && $errlog;
501 &$logfunc($errlog) if $logfunc && $errlog;
506 die "failed to execute\n";
507 } elsif (my $sig = ($? & 127)) {
508 die "got signal $sig\n";
509 } elsif ($exitcode = ($? >> 8)) {
510 if (!($exitcode == 24 && ($cmdstr =~ m
|^(\S
+/)?rsync\s
|))) {
511 if ($errmsg && $laststderr) {
512 my $lerr = $laststderr;
516 die "exit code $exitcode\n";
527 if ($errmsg && $laststderr) {
528 &$errfunc(undef); # flush laststderr
531 umask ($old_umask) if defined($old_umask);
533 alarm($oldtimeout) if $oldtimeout;
536 if ($pid && ($err eq "got timeout\n")) {
539 die "command '$cmdstr' failed: $err";
543 $err =~ s/^usermod:\s*// if $cmdstr =~ m
|^(\S
+/)?usermod\s
|;
546 die "command '$cmdstr' failed: $err";
554 my $listtxt = shift || '';
556 return split (/\0/, $listtxt) if $listtxt =~ m/\0/;
558 $listtxt =~ s/[,;]/ /g;
559 $listtxt =~ s/^\s+//;
561 my @data = split (/\s+/, $listtxt);
569 return $txt if !defined($txt);
577 # simple uri templates like "/vms/{vmid}"
578 sub template_replace
{
579 my ($tmpl, $data) = @_;
581 return $tmpl if !$tmpl;
584 while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) {
586 $res .= ($data->{$3} || '-') if $2;
592 my ($filename, $fh, $data) = @_;
596 my $res = print $fh $data;
598 die "write to '$filename' failed\n" if !$res;
604 'at' => 'ftp.at.debian.org',
605 'au' => 'ftp.au.debian.org',
606 'be' => 'ftp.be.debian.org',
607 'bg' => 'ftp.bg.debian.org',
608 'br' => 'ftp.br.debian.org',
609 'ca' => 'ftp.ca.debian.org',
610 'ch' => 'ftp.ch.debian.org',
611 'cl' => 'ftp.cl.debian.org',
612 'cz' => 'ftp.cz.debian.org',
613 'de' => 'ftp.de.debian.org',
614 'dk' => 'ftp.dk.debian.org',
615 'ee' => 'ftp.ee.debian.org',
616 'es' => 'ftp.es.debian.org',
617 'fi' => 'ftp.fi.debian.org',
618 'fr' => 'ftp.fr.debian.org',
619 'gr' => 'ftp.gr.debian.org',
620 'hk' => 'ftp.hk.debian.org',
621 'hr' => 'ftp.hr.debian.org',
622 'hu' => 'ftp.hu.debian.org',
623 'ie' => 'ftp.ie.debian.org',
624 'is' => 'ftp.is.debian.org',
625 'it' => 'ftp.it.debian.org',
626 'jp' => 'ftp.jp.debian.org',
627 'kr' => 'ftp.kr.debian.org',
628 'mx' => 'ftp.mx.debian.org',
629 'nl' => 'ftp.nl.debian.org',
630 'no' => 'ftp.no.debian.org',
631 'nz' => 'ftp.nz.debian.org',
632 'pl' => 'ftp.pl.debian.org',
633 'pt' => 'ftp.pt.debian.org',
634 'ro' => 'ftp.ro.debian.org',
635 'ru' => 'ftp.ru.debian.org',
636 'se' => 'ftp.se.debian.org',
637 'si' => 'ftp.si.debian.org',
638 'sk' => 'ftp.sk.debian.org',
639 'tr' => 'ftp.tr.debian.org',
640 'tw' => 'ftp.tw.debian.org',
641 'gb' => 'ftp.uk.debian.org',
642 'us' => 'ftp.us.debian.org',
647 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'],
648 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ],
649 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ],
650 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', undef],
651 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', undef ],
652 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'],
653 #'et' => [], # Ethopia or Estonia ??
654 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'],
655 #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'],
656 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'],
657 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'],
658 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'],
659 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'],
660 #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2?
661 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef],
662 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'],
663 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'],
664 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef],
665 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'],
666 #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7?
667 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'],
668 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef],
669 #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?],
670 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'],
671 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef],
672 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'],
673 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'],
674 #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know?
675 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef],
676 'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'],
678 'tr' => ['Turkish', 'tr', 'qwerty/trq.kmap.gz', 'tr', undef],
681 my $kvmkeymaparray = [];
682 foreach my $lc (sort keys %$keymaphash) {
683 push @$kvmkeymaparray, $keymaphash->{$lc}->[1];
691 return $kvmkeymaparray;
695 my ($param, $key) = @_;
697 my $res = $param->{$key};
698 delete $param->{$key};
703 # Note: we use this to wait until vncterm/spiceterm is ready
704 sub wait_for_vnc_port
{
705 my ($port, $timeout) = @_;
707 $timeout = 5 if !$timeout;
709 my $starttime = [gettimeofday
];
712 while (($elapsed = tv_interval
($starttime)) < $timeout) {
713 if (my $fh = IO
::File-
>new ("/proc/net/tcp", "r")) {
714 while (defined (my $line = <$fh>)) {
715 if ($line =~ m/^\s*\d+:\s+([0-9A-Fa-f]{8}):([0-9A-Fa-f]{4})\s/) {
716 if ($port == hex($2)) {
724 $sleeptime += 100000 if $sleeptime < 1000000;
731 sub next_unused_port
{
732 my ($range_start, $range_end, $family) = @_;
734 # We use a file to register allocated ports.
735 # Those registrations expires after $expiretime.
736 # We use this to avoid race conditions between
737 # allocation and use of ports.
739 my $filename = "/var/tmp/pve-reserved-ports";
748 if (my $fh = IO
::File-
>new ($filename, "r")) {
749 while (my $line = <$fh>) {
750 if ($line =~ m/^(\d+)\s(\d+)$/) {
751 my ($port, $timestamp) = ($1, $2);
752 if (($timestamp + $expiretime) > $ctime) {
753 $ports->{$port} = $timestamp; # not expired
761 for (my $p = $range_start; $p < $range_end; $p++) {
762 next if $ports->{$p}; # reserved
764 my $sock = IO
::Socket
::IP-
>new(Listen
=> 5,
769 GetAddrInfoFlags
=> 0);
774 $ports->{$p} = $ctime;
780 foreach my $p (keys %$ports) {
781 $data .= "$p $ports->{$p}\n";
784 file_set_contents
($filename, $data);
789 my $p = lock_file
($filename, 10, $code);
792 die "unable to find free port (${range_start}-${range_end})\n" if !$p;
797 sub next_migrate_port
{
799 return next_unused_port
(60000, 60050, $family);
804 return next_unused_port
(5900, 6000, $family);
807 sub next_spice_port
{
809 return next_unused_port
(61000, 61099, $family);
812 # NOTE: NFS syscall can't be interrupted, so alarm does
813 # not work to provide timeouts.
814 # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation"
815 # So fork() before using Filesys::Df
817 my ($path, $timeout) = @_;
825 my $pipe = IO
::Pipe-
>new();
827 if (!defined($child)) {
828 warn "fork failed: $!\n";
835 my $df = Filesys
::Df
::df
($path, 1);
836 print {$pipe} "$df->{blocks}\n$df->{used}\n$df->{bavail}\n";
848 my $readvalues = sub {
849 $res->{total
} = int(<$pipe>);
850 $res->{used
} = int(<$pipe>);
851 $res->{avail
} = int(<$pipe>);
854 run_with_timeout
($timeout, $readvalues);
858 kill('KILL', $child);
864 # We use this to uniquely identify a process.
865 # An 'Unique Process ID' has the following format:
866 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
871 # Note: pstart can be > 32bit if uptime > 497 days, so this can result in
872 # more that 8 characters for pstart
873 return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node
}, $d->{pid
},
874 $d->{pstart
}, $d->{starttime
}, $d->{type
}, $d->{id
},
879 my ($upid, $noerr) = @_;
884 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
885 # Note: allow up to 9 characters for pstart (work until 20 years uptime)
886 if ($upid =~ m/^UPID:([a-zA-Z0-9]([a-zA-Z0-9\-]*[a-zA-Z0-9])?):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8,9}):([0-9A-Fa-f]{8}):([^:\s]+):([^:\s]*):([^:\s]+):$/) {
888 $res->{pid
} = hex($3);
889 $res->{pstart
} = hex($4);
890 $res->{starttime
} = hex($5);
895 my $subdir = substr($5, 7, 8);
896 $filename = "$pvetaskdir/$subdir/$upid";
899 return undef if $noerr;
900 die "unable to parse worker upid '$upid'\n";
903 return wantarray ?
($res, $filename) : $res;
909 my ($task, $filename) = upid_decode
($upid);
911 my $dirname = dirname
($filename);
914 my $wwwid = getpwnam('www-data') ||
915 die "getpwnam failed";
919 my $outfh = IO
::File-
>new ($filename, O_WRONLY
|O_CREAT
|O_EXCL
, $perm) ||
920 die "unable to create output file '$filename' - $!\n";
921 chown $wwwid, -1, $outfh;
926 sub upid_read_status
{
929 my ($task, $filename) = upid_decode
($upid);
930 my $fh = IO
::File-
>new($filename, "r");
931 return "unable to open file - $!" if !$fh;
933 sysseek($fh, -$maxlen, 2);
935 my $br = sysread($fh, $readbuf, $maxlen);
938 return "unable to extract last line"
939 if $readbuf !~ m/\n?(.+)$/;
941 if ($line =~ m/^TASK OK$/) {
943 } elsif ($line =~ m/^TASK ERROR: (.+)$/) {
946 return "unexpected status";
949 return "unable to read tail (got $br bytes)";
952 # useful functions to store comments in config files
956 # all control and hi-bit characters, and ':'
957 my $unsafe = "^\x20-\x39\x3b-\x7e";
958 return uri_escape
(Encode
::encode
("utf8", $text), $unsafe);
964 return Encode
::decode
("utf8", uri_unescape
($data));
967 sub decode_utf8_parameters
{
970 foreach my $p (qw(comment description firstname lastname)) {
971 $param->{$p} = decode
('utf8', $param->{$p}) if $param->{$p};
977 sub random_ether_addr
{
979 my ($seconds, $microseconds) = gettimeofday
;
981 my $rand = Digest
::SHA
::sha1_hex
($$, rand(), $seconds, $microseconds);
983 # clear multicast, set local id
984 vec($rand, 0, 8) = (vec($rand, 0, 8) & 0xfe) | 2;
986 return sprintf("%02X:%02X:%02X:%02X:%02X:%02X", unpack("C6", $rand));
992 return String
::ShellQuote
::shell_quote
($str);
998 die "no arguments" if !$cmd;
1000 return $cmd if !ref($cmd);
1003 foreach my $arg (@$cmd) { push @qa, shellquote
($arg); }
1005 return join (' ', @qa);
1008 # split an shell argument string into an array,
1012 return $str ?
[ Text
::ParseWords
::shellwords
($str) ] : [];
1016 my ($filename, $start, $limit, $filter) = @_;
1021 my $fh = IO
::File-
>new($filename, "r");
1024 push @$lines, { n
=> $count, t
=> "unable to open file - $!"};
1025 return ($count, $lines);
1028 $start = 0 if !$start;
1029 $limit = 50 if !$limit;
1034 # duplicate code, so that we do not slow down normal path
1035 while (defined($line = <$fh>)) {
1036 next if $line !~ m/$filter/;
1037 next if $count++ < $start;
1038 next if $limit <= 0;
1040 push @$lines, { n
=> $count, t
=> $line};
1044 while (defined($line = <$fh>)) {
1045 next if $count++ < $start;
1046 next if $limit <= 0;
1048 push @$lines, { n
=> $count, t
=> $line};
1055 # HACK: ExtJS store.guaranteeRange() does not like empty array
1059 push @$lines, { n
=> $count, t
=> "no content"};
1062 return ($count, $lines);
1066 my ($start, $limit, $since, $until) = @_;
1071 $start = 0 if !$start;
1072 $limit = 50 if !$limit;
1077 return if $count++ < $start;
1078 return if $limit <= 0;
1079 push @$lines, { n
=> int($count), t
=> $line};
1083 my $cmd = ['journalctl', '-o', 'short', '--no-pager'];
1085 push @$cmd, '--since', $since if $since;
1086 push @$cmd, '--until', $until if $until;
1087 run_command
($cmd, outfunc
=> $parser);
1089 # HACK: ExtJS store.guaranteeRange() does not like empty array
1093 push @$lines, { n
=> $count, t
=> "no content"};
1096 return ($count, $lines);
1099 sub dir_glob_regex
{
1100 my ($dir, $regex) = @_;
1102 my $dh = IO
::Dir-
>new ($dir);
1103 return wantarray ?
() : undef if !$dh;
1105 while (defined(my $tmp = $dh->read)) {
1106 if (my @res = $tmp =~ m/^($regex)$/) {
1108 return wantarray ?
@res : $tmp;
1113 return wantarray ?
() : undef;
1116 sub dir_glob_foreach
{
1117 my ($dir, $regex, $func) = @_;
1119 my $dh = IO
::Dir-
>new ($dir);
1121 while (defined(my $tmp = $dh->read)) {
1122 if (my @res = $tmp =~ m/^($regex)$/) {
1129 sub assert_if_modified
{
1130 my ($digest1, $digest2) = @_;
1132 if ($digest1 && $digest2 && ($digest1 ne $digest2)) {
1133 die "detected modified configuration - file changed by other user? Try again.\n";
1137 # Digest for short strings
1138 # like FNV32a, but we only return 31 bits (positive numbers)
1142 my $hval = 0x811c9dc5;
1144 foreach my $c (unpack('C*', $string)) {
1152 $hval = $hval & 0xffffffff;
1154 return $hval & 0x7fffffff;
1157 sub fnv31a_hex
{ return sprintf("%X", fnv31a
(@_)); }
1159 sub unpack_sockaddr_in46
{
1161 my $family = Socket
::sockaddr_family
($sin);
1162 my ($port, $host) = ($family == AF_INET6 ? Socket
::unpack_sockaddr_in6
($sin)
1163 : Socket
::unpack_sockaddr_in
($sin));
1164 return ($family, $port, $host);
1167 sub getaddrinfo_all
{
1168 my ($hostname, @opts) = @_;
1169 my %hints = ( flags
=> AI_V4MAPPED
| AI_ALL
,
1171 my ($err, @res) = Socket
::getaddrinfo
($hostname, '0', \
%hints);
1172 die "failed to get address info for: $hostname: $err\n" if $err;
1176 sub get_host_address_family
{
1177 my ($hostname, $socktype) = @_;
1178 my @res = getaddrinfo_all
($hostname, socktype
=> $socktype);
1179 return $res[0]->{family
};
1182 # Parses any sane kind of host, or host+port pair:
1183 # The port is always optional and thus may be undef.
1184 sub parse_host_and_port
{
1186 if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ || # ipv4 or host with optional ':port'
1187 $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port'
1188 $address =~ /^($IPV6RE)(?:\.(\d+))?$/) # ipv6 with optional port separated by dot
1190 return ($1, $2, 1); # end with 1 to support simple if(parse...) tests
1197 return 0 == syscall(272, $flags);
1201 my ($fileno, $nstype) = @_;
1202 return 0 == syscall(308, $fileno, $nstype);
1207 return 0 == syscall(306, $fileno);
1210 sub sync_mountpoint
{
1212 sysopen my $fd, $path, O_PATH
or die "failed to open $path: $!\n";
1213 my $result = syncfs
(fileno($fd));
1218 # support sending multi-part mail messages with a text and or a HTML part
1219 # mailto may be a single email string or an array of receivers
1221 my ($mailto, $subject, $text, $html, $mailfrom, $author) = @_;
1223 $mailto = [ $mailto ] if !ref($mailto);
1226 foreach my $r (@$mailto) {
1227 $rcvrarg .= " '$r'";
1229 my $rcvrtxt = join (', ', @$mailto);
1231 $mailfrom = $mailfrom || "root";
1232 $author = $author || 'Proxmox VE';
1234 open (MAIL
,"|sendmail -B 8BITMIME -f $mailfrom $rcvrarg") ||
1235 die "unable to open 'sendmail' - $!";
1237 # multipart spec see https://www.ietf.org/rfc/rfc1521.txt
1238 my $boundary = "----_=_NextPart_001_".int(time).$$;
1240 print MAIL
"Content-Type: multipart/alternative;\n";
1241 print MAIL
"\tboundary=\"$boundary\"\n";
1242 print MAIL "MIME-Version
: 1.0\n";
1244 print MAIL "FROM
: $author <$mailfrom>\n";
1245 print MAIL "TO
: $rcvrtxt\n";
1246 print MAIL "SUBJECT
: $subject\n";
1248 print MAIL "This
is a multi-part message
in MIME format
.\n\n";
1249 print MAIL "--$boundary\n";
1251 if (defined($text)) {
1252 print MAIL "Content-Type
: text
/plain
;\n";
1253 print MAIL "\tcharset
=\"UTF8
\"\n";
1254 print MAIL "Content-Transfer-Encoding
: 8bit
\n";
1257 # avoid 'remove extra line breaks' issue (MS Outlook)
1259 $text =~ s/^/$fill/gm;
1263 print MAIL "\n--$boundary\n";
1266 if (defined($html)) {
1267 print MAIL "Content-Type
: text
/html
;\n";
1268 print MAIL "\tcharset
=\"UTF8
\"\n";
1269 print MAIL "Content-Transfer-Encoding
: 8bit
\n";
1274 print MAIL "\n--$boundary--\n";
1281 my ($perm, %opts) = @_;
1283 # default permissions are stricter than with file_set_contents
1284 $perm = 0600 if !defined($perm);
1286 my $dir = $opts{dir} // '/tmp';
1287 my $mode = $opts{mode} // O_RDWR;
1288 $mode |= O_EXCL if !$opts{allow_links};
1290 my $fh = IO::File->new($dir, $mode | O_TMPFILE, $perm)
1291 or die "failed to create tempfile
: $!\n";
1295 sub tempfile_contents {
1296 my ($data, $perm, %opts) = @_;
1298 my $fh = tempfile($perm, %opts);
1300 die "unable to
write to tempfile
: $!\n" if !print {$fh} $data;
1301 die "unable to flush to tempfile
: $!\n" if !defined($fh->flush());
1308 return ("/proc/$$/fd/".$fh->fileno, $fh);
1311 sub validate_ssh_public_keys {
1313 my @lines = split(/\n/, $raw);
1315 foreach my $line (@lines) {
1316 next if $line =~ m/^\s*$/;
1318 my ($filename, $handle) = tempfile_contents($line);
1319 run_command(["ssh-keygen
", "-l
", "-f
", $filename],
1320 outfunc => sub {}, errfunc => sub {});
1322 die "SSH public key validation error
\n" if $@;
1327 my ($dirfd, $pathname, $flags, $mode) = @_;
1328 my $fd = syscall(257, $dirfd, $pathname, $flags, $mode//0);
1329 return undef if $fd < 0;
1330 # sysopen() doesn't deal with numeric file descriptors apparently
1331 # so we need to convert to a mode string for IO::Handle->new_from_fd
1332 my $flagstr = ($flags & O_RDWR) ? 'rw' : ($flags & O_WRONLY) ? 'w' : 'r';
1333 my $handle = IO::Handle->new_from_fd($fd, $flagstr);
1334 return $handle if $handle;
1335 my $err = $!; # save error before closing the raw fd
1336 syscall(3, $fd); # close
1342 my ($dirfd, $name, $mode) = @_;
1343 return syscall(258, $dirfd, $name, $mode) == 0;